binutils-gdb/ld/emultempl/xtensaelf.em

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# This shell script emits a C file. -*- C -*-
# Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009
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# Free Software Foundation, Inc.
#
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# This file is part of the GNU Binutils.
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#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
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#
# This file is sourced from elf32.em, and defines extra xtensa-elf
# specific routines.
#
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
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fragment <<EOF
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#include <xtensa-config.h>
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
#include "../bfd/elf-bfd.h"
#include "../bfd/libbfd.h"
#include "elf/xtensa.h"
#include "bfd.h"
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/* Provide default values for new configuration settings. */
#ifndef XSHAL_ABI
#define XSHAL_ABI 0
#endif
static void xtensa_wild_group_interleave (lang_statement_union_type *);
static void xtensa_colocate_output_literals (lang_statement_union_type *);
static void xtensa_strip_inconsistent_linkonce_sections
(lang_statement_list_type *);
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/* Flag for the emulation-specific "--no-relax" option. */
static bfd_boolean disable_relaxation = FALSE;
/* This number is irrelevant until we turn on use_literal_pages */
static bfd_vma xtensa_page_power = 12; /* 4K pages. */
/* To force a page break between literals and text, change
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
xtensa_use_literal_pages to "TRUE". */
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static bfd_boolean xtensa_use_literal_pages = FALSE;
#define EXTRA_VALIDATION 0
static char *
elf_xtensa_choose_target (int argc ATTRIBUTE_UNUSED,
char **argv ATTRIBUTE_UNUSED)
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{
if (XCHAL_HAVE_BE)
return "${BIG_OUTPUT_FORMAT}";
else
return "${LITTLE_OUTPUT_FORMAT}";
}
static void
elf_xtensa_before_parse (void)
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{
/* Just call the default hook.... Tensilica's version of this function
does some other work that isn't relevant here. */
gld${EMULATION_NAME}_before_parse ();
}
static void
remove_section (bfd *abfd, asection *os)
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
{
asection **spp;
for (spp = &abfd->sections; *spp; spp = &(*spp)->next)
if (*spp == os)
{
*spp = os->next;
os->owner->section_count--;
break;
}
}
static bfd_boolean
replace_insn_sec_with_prop_sec (bfd *abfd,
const char *insn_sec_name,
const char *prop_sec_name,
char **error_message)
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
{
asection *insn_sec;
asection *prop_sec;
bfd_byte *prop_contents = NULL;
bfd_byte *insn_contents = NULL;
unsigned entry_count;
unsigned entry;
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *internal_relocs = NULL;
unsigned reloc_count;
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
*error_message = "";
insn_sec = bfd_get_section_by_name (abfd, insn_sec_name);
if (insn_sec == NULL)
return TRUE;
entry_count = insn_sec->size / 8;
prop_sec = bfd_get_section_by_name (abfd, prop_sec_name);
if (prop_sec != NULL && insn_sec != NULL)
{
*error_message = _("file already has property tables");
return FALSE;
}
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
if (insn_sec->size != 0)
{
insn_contents = (bfd_byte *) bfd_malloc (insn_sec->size);
if (insn_contents == NULL)
{
*error_message = _("out of memory");
goto cleanup;
}
if (! bfd_get_section_contents (abfd, insn_sec, insn_contents,
(file_ptr) 0, insn_sec->size))
{
*error_message = _("failed to read section contents");
goto cleanup;
}
}
/* Create a property table section for it. */
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
prop_sec_name = strdup (prop_sec_name);
prop_sec = bfd_make_section_with_flags
(abfd, prop_sec_name, bfd_get_section_flags (abfd, insn_sec));
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
if (prop_sec == NULL
|| ! bfd_set_section_alignment (abfd, prop_sec, 2))
{
*error_message = _("could not create new section");
goto cleanup;
}
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
prop_sec->size = entry_count * 12;
prop_contents = (bfd_byte *) bfd_zalloc (abfd, prop_sec->size);
elf_section_data (prop_sec)->this_hdr.contents = prop_contents;
/* The entry size and size must be set to allow the linker to compute
the number of relocations since it does not use reloc_count. */
elf_section_data (prop_sec)->rel_hdr.sh_entsize =
sizeof (Elf32_External_Rela);
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
elf_section_data (prop_sec)->rel_hdr.sh_size =
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
elf_section_data (insn_sec)->rel_hdr.sh_size;
if (prop_contents == NULL && prop_sec->size != 0)
{
*error_message = _("could not allocate section contents");
goto cleanup;
}
/* Read the relocations. */
reloc_count = insn_sec->reloc_count;
if (reloc_count != 0)
{
/* If there is already an internal_reloc, then save it so that the
read_relocs function freshly allocates a copy. */
Elf_Internal_Rela *saved_relocs = elf_section_data (insn_sec)->relocs;
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
elf_section_data (insn_sec)->relocs = NULL;
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
internal_relocs =
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
_bfd_elf_link_read_relocs (abfd, insn_sec, NULL, NULL, FALSE);
elf_section_data (insn_sec)->relocs = saved_relocs;
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
if (internal_relocs == NULL)
{
*error_message = _("out of memory");
goto cleanup;
}
}
/* Create a relocation section for the property section. */
if (internal_relocs != NULL)
{
elf_section_data (prop_sec)->relocs = internal_relocs;
prop_sec->reloc_count = reloc_count;
}
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
/* Now copy each insn table entry to the prop table entry with
appropriate flags. */
for (entry = 0; entry < entry_count; ++entry)
{
unsigned value;
unsigned flags = (XTENSA_PROP_INSN | XTENSA_PROP_NO_TRANSFORM
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
| XTENSA_PROP_INSN_NO_REORDER);
value = bfd_get_32 (abfd, insn_contents + entry * 8 + 0);
bfd_put_32 (abfd, value, prop_contents + entry * 12 + 0);
value = bfd_get_32 (abfd, insn_contents + entry * 8 + 4);
bfd_put_32 (abfd, value, prop_contents + entry * 12 + 4);
bfd_put_32 (abfd, flags, prop_contents + entry * 12 + 8);
}
/* Now copy all of the relocations. Change offsets for the
instruction table section to offsets in the property table
section. */
if (internal_relocs)
{
unsigned i;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
for (i = 0; i < reloc_count; i++)
{
Elf_Internal_Rela *rela;
unsigned r_offset;
rela = &internal_relocs[i];
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
/* If this relocation is to the .xt.insn section,
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
change the section number and the offset. */
r_offset = rela->r_offset;
r_offset += 4 * (r_offset / 8);
rela->r_offset = r_offset;
}
}
remove_section (abfd, insn_sec);
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
if (insn_contents)
free (insn_contents);
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
return TRUE;
cleanup:
if (prop_sec && prop_sec->owner)
remove_section (abfd, prop_sec);
if (insn_contents)
free (insn_contents);
if (internal_relocs)
free (internal_relocs);
return FALSE;
}
#define PROP_SEC_BASE_NAME ".xt.prop"
#define INSN_SEC_BASE_NAME ".xt.insn"
#define LINKONCE_SEC_OLD_TEXT_BASE_NAME ".gnu.linkonce.x."
static void
replace_instruction_table_sections (bfd *abfd, asection *sec)
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
{
char *message = "";
const char *insn_sec_name = NULL;
char *prop_sec_name = NULL;
char *owned_prop_sec_name = NULL;
const char *sec_name;
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
sec_name = bfd_get_section_name (abfd, sec);
if (strcmp (sec_name, INSN_SEC_BASE_NAME) == 0)
{
insn_sec_name = INSN_SEC_BASE_NAME;
prop_sec_name = PROP_SEC_BASE_NAME;
}
else if (CONST_STRNEQ (sec_name, LINKONCE_SEC_OLD_TEXT_BASE_NAME))
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
{
insn_sec_name = sec_name;
owned_prop_sec_name = (char *) xmalloc (strlen (sec_name) + 20);
prop_sec_name = owned_prop_sec_name;
strcpy (prop_sec_name, ".gnu.linkonce.prop.t.");
strcat (prop_sec_name,
sec_name + strlen (LINKONCE_SEC_OLD_TEXT_BASE_NAME));
}
if (insn_sec_name != NULL)
{
if (! replace_insn_sec_with_prop_sec (abfd, insn_sec_name, prop_sec_name,
&message))
{
einfo (_("%P: warning: failed to convert %s table in %B (%s); subsequent disassembly may be incomplete\n"),
insn_sec_name, abfd, message);
}
}
if (owned_prop_sec_name)
free (owned_prop_sec_name);
}
/* This is called after all input sections have been opened to convert
instruction tables (.xt.insn, gnu.linkonce.x.*) tables into property
tables (.xt.prop) before any section placement. */
static void
elf_xtensa_after_open (void)
{
/* First call the ELF version. */
gld${EMULATION_NAME}_after_open ();
2007-07-19 Roland McGrath <roland@redhat.com> * genscripts.sh (source_em, fragment): New sh functions. Truncate e${EMULATION_NAME}.c file before .em script fills it. Use source_em in place of . for the .em script. * emultempl/generic.em: Use fragment and source_em functions. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/netbsd.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise.
2007-07-19 21:56:10 +02:00
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
/* Now search the input files looking for instruction table sections. */
LANG_FOR_EACH_INPUT_STATEMENT (f)
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
{
asection *sec = f->the_bfd->sections;
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
asection *next_sec;
/* Do not use bfd_map_over_sections here since we are removing
sections as we iterate. */
while (sec != NULL)
{
next_sec = sec->next;
replace_instruction_table_sections (f->the_bfd, sec);
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
sec = next_sec;
}
}
}
static bfd_boolean
xt_config_info_unpack_and_check (char *data,
bfd_boolean *pmismatch,
char **pmsg)
{
char *d, *key;
unsigned num;
*pmismatch = FALSE;
d = data;
while (*d)
{
key = d;
d = strchr (d, '=');
if (! d)
goto error;
/* Overwrite the equal sign. */
*d++ = 0;
/* Check if this is a quoted string or a number. */
if (*d == '"')
{
/* No string values are currently checked by LD;
just skip over the quotes. */
d++;
d = strchr (d, '"');
if (! d)
goto error;
/* Overwrite the trailing quote. */
*d++ = 0;
}
else
{
if (*d == 0)
goto error;
num = strtoul (d, &d, 0);
if (! strcmp (key, "ABI"))
{
if (num != XSHAL_ABI)
{
*pmismatch = TRUE;
*pmsg = "ABI does not match";
}
}
else if (! strcmp (key, "USE_ABSOLUTE_LITERALS"))
{
if (num != XSHAL_USE_ABSOLUTE_LITERALS)
{
*pmismatch = TRUE;
*pmsg = "incompatible use of the Extended L32R option";
}
}
}
if (*d++ != '\n')
goto error;
}
return TRUE;
error:
return FALSE;
}
#define XTINFO_NAME "Xtensa_Info"
#define XTINFO_NAMESZ 12
#define XTINFO_TYPE 1
static void
check_xtensa_info (bfd *abfd, asection *info_sec)
{
char *data, *errmsg = "";
bfd_boolean mismatch;
data = xmalloc (info_sec->size);
if (! bfd_get_section_contents (abfd, info_sec, data, 0, info_sec->size))
einfo (_("%F%P:%B: cannot read contents of section %A\n"), abfd, info_sec);
if (info_sec->size > 24
&& info_sec->size >= 24 + bfd_get_32 (abfd, data + 4)
&& bfd_get_32 (abfd, data + 0) == XTINFO_NAMESZ
&& bfd_get_32 (abfd, data + 8) == XTINFO_TYPE
&& strcmp (data + 12, XTINFO_NAME) == 0
&& xt_config_info_unpack_and_check (data + 12 + XTINFO_NAMESZ,
&mismatch, &errmsg))
{
if (mismatch)
einfo (_("%P:%B: warning: incompatible Xtensa configuration (%s)\n"),
abfd, errmsg);
}
else
einfo (_("%P:%B: warning: cannot parse .xtensa.info section\n"), abfd);
free (data);
}
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/* This is called after the sections have been attached to output
sections, but before any sizes or addresses have been set. */
static void
elf_xtensa_before_allocation (void)
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{
asection *info_sec, *first_info_sec;
bfd *first_bfd;
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bfd_boolean is_big_endian = XCHAL_HAVE_BE;
/* Check that the output endianness matches the Xtensa
configuration. The BFD library always includes both big and
little endian target vectors for Xtensa, but it only supports the
detailed instruction encode/decode operations (such as are
required to process relocations) for the selected Xtensa
configuration. */
include/ * bfdlink.h (struct bfd_link_hash_table): Delete creator field. (struct bfd_link_info): Add output_bfd. bfd/ * elflink.c: Replace all accesses to hash->creator field with output_bfd->xvec. * cofflink.c: Likewise. * coff-h8300.c: Likewise. * ecoff.c: Likewise. * elf32-m68hc1x.c: Likewise. * elf32-ppc.c: Likewise. * elf64-alpha.c: Likewise. * elf64-ppc.c: Likewise. * elf64-sparc.c: Likewise. * elfxx-mips.c: Likewise. * i386linux.c: Likewise. * m68klinux.c: Likewise. * sparclinux.c: Likewise. * sunos.c: Likewise. * xcofflink.c: Likewise. * linker.c: Likewise. (_bfd_link_hash_table_init): Don't store creator. ld/ * ldmain.h (output_bfd): Delete. * ldmain.c (output_bfd): Delete. Replace all occurrences of output_bfd with link_info.output_bfd. * ldcref.c: Likewise. * ldctor.c: Likewise. * ldemul.c: Likewise. * ldexp.c: Likewise. * ldfile.c: Likewise. * ldlang.c: Likewise. * ldmisc.c: Likewise. * ldwrite.c: Likewise. * pe-dll.c: Likewise. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise. * ldlang.c (open_output): Don't return output, instead write link_info_output_bfd directly. * emultempl/alphaelf.em: Replace occurrences of link_info.hash->creator with link_info.output_bfd->xvec. * emultempl/hppaelf.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/spuelf.em: Likewise.
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if (is_big_endian
&& link_info.output_bfd->xvec->byteorder == BFD_ENDIAN_LITTLE)
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{
einfo (_("%F%P: little endian output does not match "
"Xtensa configuration\n"));
}
include/ * bfdlink.h (struct bfd_link_hash_table): Delete creator field. (struct bfd_link_info): Add output_bfd. bfd/ * elflink.c: Replace all accesses to hash->creator field with output_bfd->xvec. * cofflink.c: Likewise. * coff-h8300.c: Likewise. * ecoff.c: Likewise. * elf32-m68hc1x.c: Likewise. * elf32-ppc.c: Likewise. * elf64-alpha.c: Likewise. * elf64-ppc.c: Likewise. * elf64-sparc.c: Likewise. * elfxx-mips.c: Likewise. * i386linux.c: Likewise. * m68klinux.c: Likewise. * sparclinux.c: Likewise. * sunos.c: Likewise. * xcofflink.c: Likewise. * linker.c: Likewise. (_bfd_link_hash_table_init): Don't store creator. ld/ * ldmain.h (output_bfd): Delete. * ldmain.c (output_bfd): Delete. Replace all occurrences of output_bfd with link_info.output_bfd. * ldcref.c: Likewise. * ldctor.c: Likewise. * ldemul.c: Likewise. * ldexp.c: Likewise. * ldfile.c: Likewise. * ldlang.c: Likewise. * ldmisc.c: Likewise. * ldwrite.c: Likewise. * pe-dll.c: Likewise. * emultempl/aix.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/irix.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emultempl/z80.em: Likewise. * ldlang.c (open_output): Don't return output, instead write link_info_output_bfd directly. * emultempl/alphaelf.em: Replace occurrences of link_info.hash->creator with link_info.output_bfd->xvec. * emultempl/hppaelf.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/spuelf.em: Likewise.
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if (!is_big_endian
&& link_info.output_bfd->xvec->byteorder == BFD_ENDIAN_BIG)
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{
einfo (_("%F%P: big endian output does not match "
"Xtensa configuration\n"));
}
/* Keep track of the first input .xtensa.info section, and as a fallback,
the first input bfd where a .xtensa.info section could be created.
After the input .xtensa.info has been checked, the contents of the
first one will be replaced with the output .xtensa.info table. */
first_info_sec = 0;
first_bfd = 0;
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LANG_FOR_EACH_INPUT_STATEMENT (f)
{
/* Check that the endianness for each input file matches the output.
The merge_private_bfd_data hook has already reported any mismatches
as errors, but those errors are not fatal. At this point, we
cannot go any further if there are any mismatches. */
if ((is_big_endian && f->the_bfd->xvec->byteorder == BFD_ENDIAN_LITTLE)
|| (!is_big_endian && f->the_bfd->xvec->byteorder == BFD_ENDIAN_BIG))
einfo (_("%F%P: cross-endian linking for %B not supported\n"),
f->the_bfd);
if (! first_bfd)
first_bfd = f->the_bfd;
info_sec = bfd_get_section_by_name (f->the_bfd, ".xtensa.info");
if (! info_sec)
continue;
if (! first_info_sec)
first_info_sec = info_sec;
/* Unpack the .xtensa.info section and check it against the current
Xtensa configuration. */
check_xtensa_info (f->the_bfd, info_sec);
/* Do not include this copy of .xtensa.info in the output. */
info_sec->size = 0;
info_sec->flags |= SEC_EXCLUDE;
}
/* Reuse the first .xtensa.info input section to hold the output
.xtensa.info; or, if none were found, create a new section in the
first input bfd (assuming there is one). */
info_sec = first_info_sec;
if (! info_sec && first_bfd)
{
info_sec = bfd_make_section_with_flags (first_bfd, ".xtensa.info",
SEC_HAS_CONTENTS | SEC_READONLY);
if (! info_sec)
einfo (_("%F%P: failed to create .xtensa.info section\n"));
}
if (info_sec)
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{
int xtensa_info_size;
char *data;
info_sec->flags &= ~SEC_EXCLUDE;
info_sec->flags |= SEC_IN_MEMORY;
data = xmalloc (100);
sprintf (data, "USE_ABSOLUTE_LITERALS=%d\nABI=%d\n",
XSHAL_USE_ABSOLUTE_LITERALS, XSHAL_ABI);
xtensa_info_size = strlen (data) + 1;
/* Add enough null terminators to pad to a word boundary. */
do
data[xtensa_info_size++] = 0;
while ((xtensa_info_size & 3) != 0);
info_sec->size = 12 + XTINFO_NAMESZ + xtensa_info_size;
info_sec->contents = xmalloc (info_sec->size);
bfd_put_32 (info_sec->owner, XTINFO_NAMESZ, info_sec->contents + 0);
bfd_put_32 (info_sec->owner, xtensa_info_size, info_sec->contents + 4);
bfd_put_32 (info_sec->owner, XTINFO_TYPE, info_sec->contents + 8);
memcpy (info_sec->contents + 12, XTINFO_NAME, XTINFO_NAMESZ);
memcpy (info_sec->contents + 12 + XTINFO_NAMESZ, data, xtensa_info_size);
free (data);
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}
/* Enable relaxation by default if the "--no-relax" option was not
specified. This is done here instead of in the before_parse hook
because there is a check in main() to prohibit use of --relax and
-r together and that combination should be allowed for Xtensa. */
if (!disable_relaxation)
command_line.relax = TRUE;
xtensa_strip_inconsistent_linkonce_sections (stat_ptr);
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gld${EMULATION_NAME}_before_allocation ();
xtensa_wild_group_interleave (stat_ptr->head);
if (command_line.relax)
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xtensa_colocate_output_literals (stat_ptr->head);
/* TBD: We need to force the page alignments to here and only do
them as needed for the entire output section. Finally, if this
2003-06-25 08:40:27 +02:00
is a relocatable link then we need to add alignment notes so
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that the literals can be separated later. */
}
typedef struct wildcard_list section_name_list;
typedef struct reloc_deps_e_t reloc_deps_e;
typedef struct reloc_deps_section_t reloc_deps_section;
typedef struct reloc_deps_graph_t reloc_deps_graph;
struct reloc_deps_e_t
{
asection *src; /* Contains l32rs. */
asection *tgt; /* Contains literals. */
reloc_deps_e *next;
};
/* Place these in the userdata field. */
struct reloc_deps_section_t
{
reloc_deps_e *preds;
reloc_deps_e *succs;
bfd_boolean is_only_literal;
};
struct reloc_deps_graph_t
{
size_t count;
size_t size;
asection **sections;
};
static void xtensa_layout_wild
(const reloc_deps_graph *, lang_wild_statement_type *);
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typedef void (*deps_callback_t) (asection *, /* src_sec */
bfd_vma, /* src_offset */
asection *, /* target_sec */
bfd_vma, /* target_offset */
void *); /* closure */
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extern bfd_boolean xtensa_callback_required_dependence
(bfd *, asection *, struct bfd_link_info *, deps_callback_t, void *);
static void xtensa_ldlang_clear_addresses (lang_statement_union_type *);
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static bfd_boolean ld_local_file_relocations_fit
(lang_statement_union_type *, const reloc_deps_graph *);
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static bfd_vma ld_assign_relative_paged_dot
(bfd_vma, lang_statement_union_type *, const reloc_deps_graph *,
bfd_boolean);
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static bfd_vma ld_xtensa_insert_page_offsets
(bfd_vma, lang_statement_union_type *, reloc_deps_graph *, bfd_boolean);
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#if EXTRA_VALIDATION
static size_t ld_count_children (lang_statement_union_type *);
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#endif
extern lang_statement_list_type constructor_list;
/* Begin verbatim code from ldlang.c:
the following are copied from ldlang.c because they are defined
there statically. */
static void
lang_for_each_statement_worker (void (*func) (lang_statement_union_type *),
lang_statement_union_type *s)
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{
for (; s != (lang_statement_union_type *) NULL; s = s->header.next)
{
func (s);
switch (s->header.type)
{
case lang_constructors_statement_enum:
lang_for_each_statement_worker (func, constructor_list.head);
break;
case lang_output_section_statement_enum:
lang_for_each_statement_worker
(func,
s->output_section_statement.children.head);
break;
case lang_wild_statement_enum:
lang_for_each_statement_worker
(func,
s->wild_statement.children.head);
break;
case lang_group_statement_enum:
lang_for_each_statement_worker (func,
s->group_statement.children.head);
break;
case lang_data_statement_enum:
case lang_reloc_statement_enum:
case lang_object_symbols_statement_enum:
case lang_output_statement_enum:
case lang_target_statement_enum:
case lang_input_section_enum:
case lang_input_statement_enum:
case lang_assignment_statement_enum:
case lang_padding_statement_enum:
case lang_address_statement_enum:
case lang_fill_statement_enum:
break;
default:
FAIL ();
break;
}
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}
}
/* End of verbatim code from ldlang.c. */
static reloc_deps_section *
xtensa_get_section_deps (const reloc_deps_graph *deps ATTRIBUTE_UNUSED,
asection *sec)
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{
/* We have a separate function for this so that
we could in the future keep a completely independent
structure that maps a section to its dependence edges.
For now, we place these in the sec->userdata field. */
reloc_deps_section *sec_deps = sec->userdata;
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return sec_deps;
}
static void
xtensa_set_section_deps (const reloc_deps_graph *deps ATTRIBUTE_UNUSED,
asection *sec,
reloc_deps_section *deps_section)
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{
sec->userdata = deps_section;
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}
/* This is used to keep a list of all of the sections participating in
the graph so we can clean them up quickly. */
static void
xtensa_append_section_deps (reloc_deps_graph *deps, asection *sec)
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{
if (deps->size <= deps->count)
{
asection **new_sections;
size_t i;
size_t new_size;
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new_size = deps->size * 2;
if (new_size == 0)
new_size = 20;
new_sections = xmalloc (sizeof (asection *) * new_size);
memset (new_sections, 0, sizeof (asection *) * new_size);
for (i = 0; i < deps->count; i++)
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{
new_sections[i] = deps->sections[i];
}
if (deps->sections != NULL)
free (deps->sections);
deps->sections = new_sections;
deps->size = new_size;
}
deps->sections[deps->count] = sec;
deps->count++;
}
static void
free_reloc_deps_graph (reloc_deps_graph *deps)
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{
size_t i;
for (i = 0; i < deps->count; i++)
{
asection *sec = deps->sections[i];
reloc_deps_section *sec_deps;
sec_deps = xtensa_get_section_deps (deps, sec);
if (sec_deps)
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{
reloc_deps_e *next;
while (sec_deps->succs != NULL)
{
next = sec_deps->succs->next;
free (sec_deps->succs);
sec_deps->succs = next;
}
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while (sec_deps->preds != NULL)
{
next = sec_deps->preds->next;
free (sec_deps->preds);
sec_deps->preds = next;
}
free (sec_deps);
}
xtensa_set_section_deps (deps, sec, NULL);
}
if (deps->sections)
free (deps->sections);
free (deps);
}
static bfd_boolean
section_is_source (const reloc_deps_graph *deps ATTRIBUTE_UNUSED,
lang_statement_union_type *s)
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{
asection *sec;
const reloc_deps_section *sec_deps;
if (s->header.type != lang_input_section_enum)
return FALSE;
sec = s->input_section.section;
sec_deps = xtensa_get_section_deps (deps, sec);
return sec_deps && sec_deps->succs != NULL;
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}
static bfd_boolean
section_is_target (const reloc_deps_graph *deps ATTRIBUTE_UNUSED,
lang_statement_union_type *s)
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{
asection *sec;
const reloc_deps_section *sec_deps;
if (s->header.type != lang_input_section_enum)
return FALSE;
sec = s->input_section.section;
sec_deps = xtensa_get_section_deps (deps, sec);
return sec_deps && sec_deps->preds != NULL;
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}
static bfd_boolean
section_is_source_or_target (const reloc_deps_graph *deps ATTRIBUTE_UNUSED,
lang_statement_union_type *s)
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{
return (section_is_source (deps, s)
|| section_is_target (deps, s));
}
typedef struct xtensa_ld_iter_stack_t xtensa_ld_iter_stack;
typedef struct xtensa_ld_iter_t xtensa_ld_iter;
struct xtensa_ld_iter_t
{
lang_statement_union_type *parent; /* Parent of the list. */
lang_statement_list_type *l; /* List that holds it. */
lang_statement_union_type **loc; /* Place in the list. */
};
struct xtensa_ld_iter_stack_t
{
xtensa_ld_iter iterloc; /* List that hold it. */
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xtensa_ld_iter_stack *next; /* Next in the stack. */
xtensa_ld_iter_stack *prev; /* Back pointer for stack. */
};
static void
ld_xtensa_move_section_after (xtensa_ld_iter *to, xtensa_ld_iter *current)
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{
lang_statement_union_type *to_next;
lang_statement_union_type *current_next;
lang_statement_union_type **e;
#if EXTRA_VALIDATION
size_t old_to_count, new_to_count;
size_t old_current_count, new_current_count;
#endif
if (to == current)
return;
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#if EXTRA_VALIDATION
old_to_count = ld_count_children (to->parent);
old_current_count = ld_count_children (current->parent);
#endif
to_next = *(to->loc);
current_next = (*current->loc)->header.next;
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*(to->loc) = *(current->loc);
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*(current->loc) = current_next;
(*(to->loc))->header.next = to_next;
/* reset "to" list tail */
for (e = &to->l->head; *e != NULL; e = &(*e)->header.next)
;
to->l->tail = e;
/* reset "current" list tail */
for (e = &current->l->head; *e != NULL; e = &(*e)->header.next)
;
current->l->tail = e;
#if EXTRA_VALIDATION
new_to_count = ld_count_children (to->parent);
new_current_count = ld_count_children (current->parent);
ASSERT ((old_to_count + old_current_count)
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== (new_to_count + new_current_count));
#endif
}
/* Can only be called with lang_statements that have lists. Returns
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
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FALSE if the list is empty. */
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static bfd_boolean
iter_stack_empty (xtensa_ld_iter_stack **stack_p)
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{
return *stack_p == NULL;
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}
static bfd_boolean
iter_stack_push (xtensa_ld_iter_stack **stack_p,
lang_statement_union_type *parent)
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{
xtensa_ld_iter_stack *stack;
lang_statement_list_type *l = NULL;
switch (parent->header.type)
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{
case lang_output_section_statement_enum:
l = &parent->output_section_statement.children;
break;
case lang_wild_statement_enum:
l = &parent->wild_statement.children;
break;
case lang_group_statement_enum:
l = &parent->group_statement.children;
break;
default:
ASSERT (0);
return FALSE;
}
/* Empty. do not push. */
if (l->tail == &l->head)
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return FALSE;
stack = xmalloc (sizeof (xtensa_ld_iter_stack));
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memset (stack, 0, sizeof (xtensa_ld_iter_stack));
stack->iterloc.parent = parent;
stack->iterloc.l = l;
stack->iterloc.loc = &l->head;
stack->next = *stack_p;
stack->prev = NULL;
if (*stack_p != NULL)
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(*stack_p)->prev = stack;
*stack_p = stack;
return TRUE;
}
static void
iter_stack_pop (xtensa_ld_iter_stack **stack_p)
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{
xtensa_ld_iter_stack *stack;
stack = *stack_p;
if (stack == NULL)
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{
ASSERT (stack != NULL);
return;
}
if (stack->next != NULL)
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stack->next->prev = NULL;
*stack_p = stack->next;
free (stack);
}
/* This MUST be called if, during iteration, the user changes the
underlying structure. It will check for a NULL current and advance
accordingly. */
static void
iter_stack_update (xtensa_ld_iter_stack **stack_p)
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{
if (!iter_stack_empty (stack_p)
&& (*(*stack_p)->iterloc.loc) == NULL)
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{
iter_stack_pop (stack_p);
while (!iter_stack_empty (stack_p)
&& ((*(*stack_p)->iterloc.loc)->header.next == NULL))
{
iter_stack_pop (stack_p);
}
if (!iter_stack_empty (stack_p))
(*stack_p)->iterloc.loc = &(*(*stack_p)->iterloc.loc)->header.next;
}
}
static void
iter_stack_next (xtensa_ld_iter_stack **stack_p)
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{
xtensa_ld_iter_stack *stack;
lang_statement_union_type *current;
stack = *stack_p;
current = *stack->iterloc.loc;
/* If we are on the first element. */
if (current != NULL)
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{
switch (current->header.type)
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{
case lang_output_section_statement_enum:
case lang_wild_statement_enum:
case lang_group_statement_enum:
/* If the list if not empty, we are done. */
if (iter_stack_push (stack_p, *stack->iterloc.loc))
return;
/* Otherwise increment the pointer as normal. */
break;
default:
break;
}
}
while (!iter_stack_empty (stack_p)
&& ((*(*stack_p)->iterloc.loc)->header.next == NULL))
{
iter_stack_pop (stack_p);
}
if (!iter_stack_empty (stack_p))
(*stack_p)->iterloc.loc = &(*(*stack_p)->iterloc.loc)->header.next;
}
static lang_statement_union_type *
iter_stack_current (xtensa_ld_iter_stack **stack_p)
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{
return *((*stack_p)->iterloc.loc);
}
/* The iter stack is a preorder. */
static void
iter_stack_create (xtensa_ld_iter_stack **stack_p,
lang_statement_union_type *parent)
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{
iter_stack_push (stack_p, parent);
}
static void
iter_stack_copy_current (xtensa_ld_iter_stack **stack_p, xtensa_ld_iter *front)
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{
*front = (*stack_p)->iterloc;
}
static void
xtensa_colocate_literals (reloc_deps_graph *deps,
lang_statement_union_type *statement)
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{
/* Keep a stack of pointers to control iteration through the contours. */
xtensa_ld_iter_stack *stack = NULL;
xtensa_ld_iter_stack **stack_p = &stack;
xtensa_ld_iter front; /* Location where new insertion should occur. */
xtensa_ld_iter *front_p = NULL;
xtensa_ld_iter current; /* Location we are checking. */
xtensa_ld_iter *current_p = NULL;
bfd_boolean in_literals = FALSE;
if (deps->count == 0)
return;
iter_stack_create (stack_p, statement);
while (!iter_stack_empty (stack_p))
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{
bfd_boolean skip_increment = FALSE;
lang_statement_union_type *l = iter_stack_current (stack_p);
switch (l->header.type)
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{
case lang_assignment_statement_enum:
/* Any assignment statement should block reordering across it. */
front_p = NULL;
in_literals = FALSE;
break;
case lang_input_section_enum:
if (front_p == NULL)
{
in_literals = (section_is_target (deps, l)
&& !section_is_source (deps, l));
if (in_literals)
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{
front_p = &front;
iter_stack_copy_current (stack_p, front_p);
}
}
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else
{
bfd_boolean is_target;
current_p = &current;
iter_stack_copy_current (stack_p, current_p);
is_target = (section_is_target (deps, l)
&& !section_is_source (deps, l));
if (in_literals)
{
iter_stack_copy_current (stack_p, front_p);
if (!is_target)
in_literals = FALSE;
}
else
{
if (is_target)
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{
/* Try to insert in place. */
ld_xtensa_move_section_after (front_p, current_p);
ld_assign_relative_paged_dot (0x100000,
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statement,
deps,
xtensa_use_literal_pages);
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/* We use this code because it's already written. */
if (!ld_local_file_relocations_fit (statement, deps))
{
/* Move it back. */
ld_xtensa_move_section_after (current_p, front_p);
/* Reset the literal placement. */
iter_stack_copy_current (stack_p, front_p);
}
else
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{
/* Move front pointer up by one. */
front_p->loc = &(*front_p->loc)->header.next;
/* Do not increment the current pointer. */
skip_increment = TRUE;
}
}
}
}
break;
default:
break;
}
if (!skip_increment)
iter_stack_next (stack_p);
else
/* Be careful to update the stack_p if it now is a null. */
iter_stack_update (stack_p);
}
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lang_for_each_statement_worker (xtensa_ldlang_clear_addresses, statement);
}
static void
xtensa_move_dependencies_to_front (reloc_deps_graph *deps,
lang_wild_statement_type *w)
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{
/* Keep a front pointer and a current pointer. */
lang_statement_union_type **front;
lang_statement_union_type **current;
/* Walk to the end of the targets. */
for (front = &w->children.head;
(*front != NULL) && section_is_source_or_target (deps, *front);
front = &(*front)->header.next)
;
if (*front == NULL)
return;
current = &(*front)->header.next;
while (*current != NULL)
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{
if (section_is_source_or_target (deps, *current))
{
/* Insert in place. */
xtensa_ld_iter front_iter;
xtensa_ld_iter current_iter;
front_iter.parent = (lang_statement_union_type *) w;
front_iter.l = &w->children;
front_iter.loc = front;
current_iter.parent = (lang_statement_union_type *) w;
current_iter.l = &w->children;
current_iter.loc = current;
ld_xtensa_move_section_after (&front_iter, &current_iter);
front = &(*front)->header.next;
}
else
{
current = &(*current)->header.next;
}
}
}
static bfd_boolean
deps_has_sec_edge (const reloc_deps_graph *deps, asection *src, asection *tgt)
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{
const reloc_deps_section *sec_deps;
const reloc_deps_e *sec_deps_e;
sec_deps = xtensa_get_section_deps (deps, src);
if (sec_deps == NULL)
return FALSE;
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for (sec_deps_e = sec_deps->succs;
sec_deps_e != NULL;
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sec_deps_e = sec_deps_e->next)
{
ASSERT (sec_deps_e->src == src);
if (sec_deps_e->tgt == tgt)
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return TRUE;
}
return FALSE;
}
static bfd_boolean
deps_has_edge (const reloc_deps_graph *deps,
lang_statement_union_type *src,
lang_statement_union_type *tgt)
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{
if (!section_is_source (deps, src))
return FALSE;
if (!section_is_target (deps, tgt))
return FALSE;
if (src->header.type != lang_input_section_enum)
return FALSE;
if (tgt->header.type != lang_input_section_enum)
return FALSE;
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return deps_has_sec_edge (deps, src->input_section.section,
tgt->input_section.section);
}
static void
add_deps_edge (reloc_deps_graph *deps, asection *src_sec, asection *tgt_sec)
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{
reloc_deps_section *src_sec_deps;
reloc_deps_section *tgt_sec_deps;
reloc_deps_e *src_edge;
reloc_deps_e *tgt_edge;
if (deps_has_sec_edge (deps, src_sec, tgt_sec))
return;
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src_sec_deps = xtensa_get_section_deps (deps, src_sec);
if (src_sec_deps == NULL)
{
/* Add a section. */
src_sec_deps = xmalloc (sizeof (reloc_deps_section));
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memset (src_sec_deps, 0, sizeof (reloc_deps_section));
src_sec_deps->is_only_literal = 0;
src_sec_deps->preds = NULL;
src_sec_deps->succs = NULL;
xtensa_set_section_deps (deps, src_sec, src_sec_deps);
xtensa_append_section_deps (deps, src_sec);
}
tgt_sec_deps = xtensa_get_section_deps (deps, tgt_sec);
if (tgt_sec_deps == NULL)
{
/* Add a section. */
tgt_sec_deps = xmalloc (sizeof (reloc_deps_section));
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memset (tgt_sec_deps, 0, sizeof (reloc_deps_section));
tgt_sec_deps->is_only_literal = 0;
tgt_sec_deps->preds = NULL;
tgt_sec_deps->succs = NULL;
xtensa_set_section_deps (deps, tgt_sec, tgt_sec_deps);
xtensa_append_section_deps (deps, tgt_sec);
}
/* Add the edges. */
src_edge = xmalloc (sizeof (reloc_deps_e));
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memset (src_edge, 0, sizeof (reloc_deps_e));
src_edge->src = src_sec;
src_edge->tgt = tgt_sec;
src_edge->next = src_sec_deps->succs;
src_sec_deps->succs = src_edge;
tgt_edge = xmalloc (sizeof (reloc_deps_e));
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memset (tgt_edge, 0, sizeof (reloc_deps_e));
tgt_edge->src = src_sec;
tgt_edge->tgt = tgt_sec;
tgt_edge->next = tgt_sec_deps->preds;
tgt_sec_deps->preds = tgt_edge;
}
static void
build_deps_graph_callback (asection *src_sec,
bfd_vma src_offset ATTRIBUTE_UNUSED,
asection *target_sec,
bfd_vma target_offset ATTRIBUTE_UNUSED,
void *closure)
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{
reloc_deps_graph *deps = closure;
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/* If the target is defined. */
if (target_sec != NULL)
add_deps_edge (deps, src_sec, target_sec);
}
static reloc_deps_graph *
ld_build_required_section_dependence (lang_statement_union_type *s)
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{
reloc_deps_graph *deps;
xtensa_ld_iter_stack *stack = NULL;
deps = xmalloc (sizeof (reloc_deps_graph));
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deps->sections = NULL;
deps->count = 0;
deps->size = 0;
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for (iter_stack_create (&stack, s);
!iter_stack_empty (&stack);
iter_stack_next (&stack))
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{
lang_statement_union_type *l = iter_stack_current (&stack);
if (l->header.type == lang_input_section_enum)
{
lang_input_section_type *input;
input = &l->input_section;
* ldlang.h (lang_input_section_type): Remove "ifile" field. (lang_insert_orphan, lang_add_section): Update prototypes. * ldlang.c (lang_insert_orphan): Remove "file" param. (lang_add_section): Likewise. Update all callers. (wild_sort): Get an input section's bfd via "section->owner". (size_input_section): Access just_syms_flag via bfd usrdata. (lang_place_orphans): Update ldemul_place_orphan call. * ldemul.h (ldemul_place_orphan): Remove input_statement param. (struct ld_emulation_xfer_struct <place_orphan>): Likewise. * ldemul.c (ldemul_place_orphan): Likewise. * ldwrite.c (build_link_order): Access just_syms_flag via bfd usrdata. * emultempl/armelf.em (arm_elf_set_bfd_for_interworking): Likewise. * emultempl/beos.em (sort_by_file_name): Access bfd by section->owner. (sort_sections): Likewise. (place_orphan): Remove "file" param. Adjust lang_add_section call. * emultempl/elf32.em (place_orphan): Remove "file" param. Adjust lang_add_section and lang_insert_orphan calls. * emultempl/hppaelf.em (hppaelf_add_stub_section): Adjust lang_add_section call. (build_section_lists): Access just_syms_flag via bfd usrdata. * emultempl/m68hc1xelf.em (m68hc11elf_add_stub_section): Adjust lang_add_section call. * emultempl/mmo.em (mmo_place_orphan): Remove "file" param. Adjust lang_add_section and lang_insert_orphan calls. * emultempl/pe.em (place_orphan): Likewise. Access bfd via section owner. * emultempl/ppc64elf.em (ppc_add_stub_section): Adjust lang_add_section call. (build_toc_list): Access just_syms_flag via bfd usrdata. (build_section_lists): Likewise. * emultempl/xtensaelf.em (elf_xtensa_place_orphan): Remove "file" param. Adjust place_orphan call. (ld_build_required_section_dependence): Access bfd via section owner.
2005-11-17 01:10:05 +01:00
xtensa_callback_required_dependence (input->section->owner,
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input->section,
&link_info,
/* Use the same closure. */
build_deps_graph_callback,
deps);
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}
}
return deps;
}
#if EXTRA_VALIDATION
static size_t
ld_count_children (lang_statement_union_type *s)
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{
size_t count = 0;
xtensa_ld_iter_stack *stack = NULL;
for (iter_stack_create (&stack, s);
!iter_stack_empty (&stack);
iter_stack_next (&stack))
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{
lang_statement_union_type *l = iter_stack_current (&stack);
ASSERT (l != NULL);
count++;
}
return count;
}
#endif /* EXTRA_VALIDATION */
/* Check if a particular section is included in the link. This will only
be true for one instance of a particular linkonce section. */
static bfd_boolean input_section_found = FALSE;
static asection *input_section_target = NULL;
static void
input_section_linked_worker (lang_statement_union_type *statement)
{
if ((statement->header.type == lang_input_section_enum
&& (statement->input_section.section == input_section_target)))
input_section_found = TRUE;
}
static bfd_boolean
input_section_linked (asection *sec)
{
input_section_found = FALSE;
input_section_target = sec;
lang_for_each_statement_worker (input_section_linked_worker, stat_ptr->head);
return input_section_found;
}
/* Strip out any linkonce property tables or XCC exception tables where the
associated linkonce text is from a different object file. Normally,
a matching set of linkonce sections is taken from the same object file,
but sometimes the files are compiled differently so that some of the
linkonce sections are not present in all files. Stripping the
inconsistent sections like this is not completely robust -- a much
better solution is to use comdat groups. */
static int linkonce_len = sizeof (".gnu.linkonce.") - 1;
static bfd_boolean
is_inconsistent_linkonce_section (asection *sec)
{
bfd *abfd = sec->owner;
const char *sec_name = bfd_get_section_name (abfd, sec);
const char *name;
if ((bfd_get_section_flags (abfd, sec) & SEC_LINK_ONCE) == 0
|| strncmp (sec_name, ".gnu.linkonce.", linkonce_len) != 0)
return FALSE;
/* Check if this is an Xtensa property section or an exception table
for Tensilica's XCC compiler. */
name = sec_name + linkonce_len;
if (CONST_STRNEQ (name, "prop."))
name = strchr (name + 5, '.') + 1;
else if (name[1] == '.'
&& (name[0] == 'p' || name[0] == 'e' || name[0] == 'h'))
name += 2;
else
name = 0;
if (name)
{
char *dep_sec_name = xmalloc (strlen (sec_name) + 1);
asection *dep_sec;
/* Get the associated linkonce text section and check if it is
included in the link. If not, this section is inconsistent
and should be stripped. */
strcpy (dep_sec_name, ".gnu.linkonce.t.");
strcat (dep_sec_name, name);
dep_sec = bfd_get_section_by_name (abfd, dep_sec_name);
if (dep_sec == NULL || ! input_section_linked (dep_sec))
{
free (dep_sec_name);
return TRUE;
}
free (dep_sec_name);
}
return FALSE;
}
static void
xtensa_strip_inconsistent_linkonce_sections (lang_statement_list_type *slist)
{
lang_statement_union_type **s_p = &slist->head;
while (*s_p)
{
lang_statement_union_type *s = *s_p;
lang_statement_union_type *s_next = (*s_p)->header.next;
switch (s->header.type)
{
case lang_input_section_enum:
if (is_inconsistent_linkonce_section (s->input_section.section))
{
s->input_section.section->output_section = bfd_abs_section_ptr;
*s_p = s_next;
continue;
}
break;
case lang_constructors_statement_enum:
xtensa_strip_inconsistent_linkonce_sections (&constructor_list);
break;
case lang_output_section_statement_enum:
if (s->output_section_statement.children.head)
xtensa_strip_inconsistent_linkonce_sections
(&s->output_section_statement.children);
break;
case lang_wild_statement_enum:
xtensa_strip_inconsistent_linkonce_sections
(&s->wild_statement.children);
break;
case lang_group_statement_enum:
xtensa_strip_inconsistent_linkonce_sections
(&s->group_statement.children);
break;
case lang_data_statement_enum:
case lang_reloc_statement_enum:
case lang_object_symbols_statement_enum:
case lang_output_statement_enum:
case lang_target_statement_enum:
case lang_input_statement_enum:
case lang_assignment_statement_enum:
case lang_padding_statement_enum:
case lang_address_statement_enum:
case lang_fill_statement_enum:
break;
default:
FAIL ();
break;
}
s_p = &(*s_p)->header.next;
}
/* Reset the tail of the list, in case the last entry was removed. */
if (s_p != slist->tail)
slist->tail = s_p;
}
static void
xtensa_wild_group_interleave_callback (lang_statement_union_type *statement)
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{
lang_wild_statement_type *w;
reloc_deps_graph *deps;
if (statement->header.type == lang_wild_statement_enum)
{
#if EXTRA_VALIDATION
size_t old_child_count;
size_t new_child_count;
#endif
bfd_boolean no_reorder;
w = &statement->wild_statement;
no_reorder = FALSE;
/* If it has 0 or 1 section bound, then do not reorder. */
if (w->children.head == NULL
|| (w->children.head->header.type == lang_input_section_enum
&& w->children.head->header.next == NULL))
no_reorder = TRUE;
if (w->filenames_sorted)
no_reorder = TRUE;
/* Check for sorting in a section list wildcard spec as well. */
if (!no_reorder)
{
struct wildcard_list *l;
for (l = w->section_list; l != NULL; l = l->next)
{
if (l->spec.sorted == TRUE)
{
no_reorder = TRUE;
break;
}
}
}
2003-04-01 17:50:31 +02:00
/* Special case until the NOREORDER linker directive is supported:
*(.init) output sections and *(.fini) specs may NOT be reordered. */
2003-04-01 17:50:31 +02:00
/* Check for sorting in a section list wildcard spec as well. */
if (!no_reorder)
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{
struct wildcard_list *l;
for (l = w->section_list; l != NULL; l = l->next)
{
if (l->spec.name
&& ((strcmp (".init", l->spec.name) == 0)
|| (strcmp (".fini", l->spec.name) == 0)))
{
no_reorder = TRUE;
break;
}
}
}
#if EXTRA_VALIDATION
old_child_count = ld_count_children (statement);
#endif
/* It is now officially a target. Build the graph of source
section -> target section (kept as a list of edges). */
2003-04-01 17:50:31 +02:00
deps = ld_build_required_section_dependence (statement);
/* If this wildcard does not reorder.... */
if (!no_reorder && deps->count != 0)
{
/* First check for reverse dependences. Fix if possible. */
xtensa_layout_wild (deps, w);
xtensa_move_dependencies_to_front (deps, w);
#if EXTRA_VALIDATION
new_child_count = ld_count_children (statement);
ASSERT (new_child_count == old_child_count);
#endif
xtensa_colocate_literals (deps, statement);
#if EXTRA_VALIDATION
new_child_count = ld_count_children (statement);
ASSERT (new_child_count == old_child_count);
#endif
}
/* Clean up. */
free_reloc_deps_graph (deps);
}
}
static void
xtensa_wild_group_interleave (lang_statement_union_type *s)
2003-04-01 17:50:31 +02:00
{
lang_for_each_statement_worker (xtensa_wild_group_interleave_callback, s);
}
static void
xtensa_layout_wild (const reloc_deps_graph *deps, lang_wild_statement_type *w)
2003-04-01 17:50:31 +02:00
{
/* If it does not fit initially, we need to do this step. Move all
of the wild literal sections to a new list, then move each of
them back in just before the first section they depend on. */
lang_statement_union_type **s_p;
#if EXTRA_VALIDATION
size_t old_count, new_count;
size_t ct1, ct2;
#endif
2003-04-01 17:50:31 +02:00
lang_wild_statement_type literal_wild;
literal_wild.header.next = NULL;
literal_wild.header.type = lang_wild_statement_enum;
literal_wild.filename = NULL;
literal_wild.filenames_sorted = FALSE;
literal_wild.section_list = NULL;
literal_wild.keep_sections = FALSE;
literal_wild.children.head = NULL;
literal_wild.children.tail = &literal_wild.children.head;
#if EXTRA_VALIDATION
old_count = ld_count_children ((lang_statement_union_type*) w);
#endif
s_p = &w->children.head;
while (*s_p != NULL)
{
lang_statement_union_type *l = *s_p;
if (l->header.type == lang_input_section_enum)
{
if (section_is_target (deps, l)
&& ! section_is_source (deps, l))
2003-04-01 17:50:31 +02:00
{
/* Detach. */
*s_p = l->header.next;
if (*s_p == NULL)
w->children.tail = s_p;
l->header.next = NULL;
/* Append. */
*literal_wild.children.tail = l;
literal_wild.children.tail = &l->header.next;
continue;
}
2003-04-01 17:50:31 +02:00
}
s_p = &(*s_p)->header.next;
}
#if EXTRA_VALIDATION
ct1 = ld_count_children ((lang_statement_union_type*) w);
ct2 = ld_count_children ((lang_statement_union_type*) &literal_wild);
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ASSERT (old_count == (ct1 + ct2));
#endif
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/* Now place them back in front of their dependent sections. */
while (literal_wild.children.head != NULL)
{
lang_statement_union_type *lit = literal_wild.children.head;
bfd_boolean placed = FALSE;
#if EXTRA_VALIDATION
ASSERT (ct2 > 0);
ct2--;
#endif
/* Detach. */
literal_wild.children.head = lit->header.next;
if (literal_wild.children.head == NULL)
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literal_wild.children.tail = &literal_wild.children.head;
lit->header.next = NULL;
/* Find a spot to place it. */
for (s_p = &w->children.head; *s_p != NULL; s_p = &(*s_p)->header.next)
2003-04-01 17:50:31 +02:00
{
lang_statement_union_type *src = *s_p;
if (deps_has_edge (deps, src, lit))
{
/* Place it here. */
lit->header.next = *s_p;
*s_p = lit;
placed = TRUE;
break;
}
}
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if (!placed)
{
/* Put it at the end. */
*w->children.tail = lit;
w->children.tail = &lit->header.next;
}
}
#if EXTRA_VALIDATION
new_count = ld_count_children ((lang_statement_union_type*) w);
ASSERT (new_count == old_count);
#endif
}
static void
xtensa_colocate_output_literals_callback (lang_statement_union_type *statement)
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{
lang_output_section_statement_type *os;
reloc_deps_graph *deps;
if (statement->header.type == lang_output_section_statement_enum)
{
/* Now, we walk over the contours of the output section statement.
First we build the literal section dependences as before.
At the first uniquely_literal section, we mark it as a good
spot to place other literals. Continue walking (and counting
sizes) until we find the next literal section. If this
section can be moved to the first one, then we move it. If
we every find a modification of ".", start over. If we find
a labeling of the current location, start over. Finally, at
the end, if we require page alignment, add page alignments. */
#if EXTRA_VALIDATION
size_t old_child_count;
size_t new_child_count;
#endif
bfd_boolean no_reorder = FALSE;
os = &statement->output_section_statement;
#if EXTRA_VALIDATION
old_child_count = ld_count_children (statement);
#endif
/* It is now officially a target. Build the graph of source
section -> target section (kept as a list of edges). */
2003-04-01 17:50:31 +02:00
deps = ld_build_required_section_dependence (statement);
/* If this wildcard does not reorder.... */
if (!no_reorder)
{
/* First check for reverse dependences. Fix if possible. */
xtensa_colocate_literals (deps, statement);
#if EXTRA_VALIDATION
new_child_count = ld_count_children (statement);
ASSERT (new_child_count == old_child_count);
#endif
}
/* Insert align/offset assignment statement. */
if (xtensa_use_literal_pages)
{
ld_xtensa_insert_page_offsets (0, statement, deps,
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xtensa_use_literal_pages);
lang_for_each_statement_worker (xtensa_ldlang_clear_addresses,
statement);
}
/* Clean up. */
free_reloc_deps_graph (deps);
}
}
static void
xtensa_colocate_output_literals (lang_statement_union_type *s)
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{
lang_for_each_statement_worker (xtensa_colocate_output_literals_callback, s);
}
static void
xtensa_ldlang_clear_addresses (lang_statement_union_type *statement)
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{
switch (statement->header.type)
{
case lang_input_section_enum:
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{
asection *bfd_section = statement->input_section.section;
bfd_section->output_offset = 0;
}
break;
default:
break;
}
}
static bfd_vma
ld_assign_relative_paged_dot (bfd_vma dot,
lang_statement_union_type *s,
const reloc_deps_graph *deps ATTRIBUTE_UNUSED,
bfd_boolean lit_align)
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{
/* Walk through all of the input statements in this wild statement
assign dot to all of them. */
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xtensa_ld_iter_stack *stack = NULL;
xtensa_ld_iter_stack **stack_p = &stack;
bfd_boolean first_section = FALSE;
bfd_boolean in_literals = FALSE;
for (iter_stack_create (stack_p, s);
!iter_stack_empty (stack_p);
iter_stack_next (stack_p))
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{
lang_statement_union_type *l = iter_stack_current (stack_p);
switch (l->header.type)
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{
case lang_input_section_enum:
{
asection *section = l->input_section.section;
size_t align_pow = section->alignment_power;
bfd_boolean do_xtensa_alignment = FALSE;
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if (lit_align)
{
bfd_boolean sec_is_target = section_is_target (deps, l);
bfd_boolean sec_is_source = section_is_source (deps, l);
bfd/ * section.c (struct sec): Rename "_cooked_size" to "size". Rename "_raw_size" to "rawsize". (STD_SECTION): Adjust comments. (bfd_set_section_size, bfd_get_section_contents): Use size. (bfd_malloc_and_get_section): New function. * bfd-in.h (bfd_section_size, bfd_get_section_size): Use size. * coff-sh.c (sh_relax_section): Alloc coff_section_data struct early. Correctly free reloc and contents memory. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Delete FIXME and fake CIE now that we can shink section size to zero. (_bfd_elf_write_section_eh_frame): Likewise.. * elf32-ppc.c (ppc_elf_relax_section): Delay reading section contents. * elf-m10300.c (mn10300_elf_final_link_relocate): Don't use _bfd_stab_section_offset. Use _bfd_elf_section_offset. * stabs.c (_bfd_stab_section_offset_): Remove unused args and unneeded indirection. * elf.c (_bfd_elf_section_offset): .. and update call. * libbfd-in.h (_bfd_stab_section_offset): Update prototype. * libbfd.h: Regenerate. * bfd-in2.h: Regenerate. Replace occurrences of "_raw_size" and "_cooked_size" in most places with "size". Set new "rawsize" for stabs, eh_frame, and SEC_MERGE sections. Use "rawsize", if non-zero, for bfd_get_section_contents calls if the section might be a stabs, eh_frame, or SEC_MERGE section. Similarly use "rawsize", if non-zero, in reloc functions to validate reloc addresses. Use new bfd_malloc_and_get_section in most places where bfd_get_section_contents was called. Expand all occurrences of bfd_section_size and bfd_get_section_size. Rename "raw_size" var in grok_prstatus and similar functions to "size". * aix386-core.c (aix386_core_file_p): .. * aix5ppc-core.c (xcoff64_core_p): .. * aout-adobe.c (aout_adobe_callback, aout_adobe_write_object_contents, aout_adobe_set_section_contents): .. * aout-target.h (callback): .. * aout-tic30.c (tic30_aout_callback, tic30_aout_final_link_relocate, MY_bfd_final_link): .. * aoutf1.h (sunos4_core_file_p): .. * aoutx.h (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, translate_from_native_sym_flags, final_link, aout_link_input_section): .. * binary.c (binary_object_p, binary_canonicalize_symtab, binary_set_section_contents): .. * bout.c (b_out_callback, b_out_write_object_contents, b_out_set_section_contents, b_out_bfd_relax_section, b_out_bfd_get_relocated_section_contents): .. * cisco-core.c (cisco_core_file_validate): .. * coff-alpha.c (alpha_ecoff_object_p, alpha_ecoff_get_relocated_section_conten, alpha_relocate_section): .. * coff-arm.c (coff_arm_relocate_section, bfd_arm_allocate_interworking_sections): .. * coff-h8300.c (h8300_reloc16_extra_cases, h8300_bfd_link_add_symbols): .. * coff-mips.c (mips_refhi_reloc, mips_gprel_reloc): .. * coff-ppc.c (coff_ppc_relocate_section, ppc_allocate_toc_section, ppc_bfd_coff_final_link): .. * coff-rs6000.c (xcoff_reloc_type_br, xcoff_ppc_relocate_section): .. * coff-sh.c (sh_relax_section, sh_relax_delete_bytes, sh_align_loads, sh_coff_get_relocated_section_contents): .. * coff64-rs6000.c (xcoff64_write_object_contents, xcoff64_reloc_type_br, xcoff64_ppc_relocate_section): .. * coffcode.h (coff_compute_section_file_positions, coff_write_object_contents): .. * coffgen.c (make_a_section_from_file, coff_write_symbols, coff_section_symbol, build_debug_section): .. * cofflink.c (coff_link_add_symbols, _bfd_coff_final_link, process_embedded_commands, _bfd_coff_link_input_bfd, _bfd_coff_write_global_sym): .. * cpu-arm.c (bfd_arm_update_notes, bfd_arm_get_mach_from_notes): .. * cpu-ns32k.c (do_ns32k_reloc, _bfd_ns32k_final_link_relocate): .. * dwarf1.c (parse_line_table, _bfd_dwarf1_find_nearest_line): .. * dwarf2.c (read_indirect_string, read_abbrevs, decode_line_info, _bfd_dwarf2_find_nearest_line): .. * ecoff.c (bfd_debug_section, ecoff_set_symbol_info, ecoff_compute_section_file_positions, _bfd_ecoff_write_object_contents, ecoff_indirect_link_order): .. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame, _bfd_elf_discard_section_eh_frame_hdr, _bfd_elf_maybe_strip_eh_frame_hdr, _bfd_elf_eh_frame_section_offset, _bfd_elf_write_section_eh_frame, _bfd_elf_write_section_eh_frame_hdr): .. * elf-hppa.h (elf_hppa_sort_unwind): .. * elf-m10200.c (mn10200_elf_relax_section, mn10200_elf_relax_delete_bytes, mn10200_elf_get_relocated_section_contents): .. * elf-m10300.c (_bfd_mn10300_elf_create_got_section, mn10300_elf_check_relocs, mn10300_elf_relax_section, mn10300_elf_relax_delete_bytes, mn10300_elf_get_relocated_section_contents, _bfd_mn10300_elf_adjust_dynamic_symbol, _bfd_mn10300_elf_discard_copies, _bfd_mn10300_elf_size_dynamic_sections, _bfd_mn10300_elf_finish_dynamic_sections): .. * elf.c (_bfd_elf_print_private_bfd_data, bfd_elf_get_bfd_needed_list, _bfd_elf_make_section_from_phdr, elf_fake_sections, bfd_elf_set_group_contents, map_sections_to_segments, elf_sort_sections, assign_file_positions_for_segments, SECTION_SIZE, copy_private_bfd_data, _bfd_elf_get_dynamic_reloc_upper_bound, _bfd_elf_canonicalize_dynamic_reloc, elfcore_maybe_make_sect, _bfd_elfcore_make_pseudosection, elfcore_grok_prstatus, elfcore_grok_lwpstatus, elfcore_grok_win32pstatus, elfcore_grok_note, elfcore_grok_nto_status, elfcore_grok_nto_gregs, _bfd_elf_rel_local_sym, _bfd_elf_get_synthetic_symtab): .. * elf32-arm.h (bfd_elf32_arm_allocate_interworking_sect, bfd_elf32_arm_process_before_allocation, elf32_arm_adjust_dynamic_symbol, allocate_dynrelocs, elf32_arm_size_dynamic_sections, elf32_arm_finish_dynamic_sections, elf32_arm_write_section): .. * elf32-cris.c (cris_elf_grok_prstatus, elf_cris_finish_dynamic_sections, cris_elf_gc_sweep_hook, elf_cris_adjust_gotplt_to_got, elf_cris_adjust_dynamic_symbol, cris_elf_check_relocs, elf_cris_size_dynamic_sections, elf_cris_discard_excess_dso_dynamics, elf_cris_discard_excess_program_dynamics): .. * elf32-d30v.c (bfd_elf_d30v_reloc, bfd_elf_d30v_reloc_21): .. * elf32-dlx.c (_bfd_dlx_elf_hi16_reloc): .. * elf32-frv.c (_frvfdpic_add_dyn_reloc, _frvfdpic_add_rofixup, _frv_create_got_section, _frvfdpic_assign_plt_entries, elf32_frvfdpic_size_dynamic_sections, elf32_frvfdpic_modify_segment_map, elf32_frvfdpic_finish_dynamic_sections): .. * elf32-h8300.c (elf32_h8_relax_section, elf32_h8_relax_delete_bytes, elf32_h8_get_relocated_section_contents): .. * elf32-hppa.c (hppa_build_one_stub, hppa_size_one_stub, elf32_hppa_adjust_dynamic_symbol, allocate_plt_static, allocate_dynrelocs, elf32_hppa_size_dynamic_sections, group_sections, elf32_hppa_size_stubs, elf32_hppa_set_gp, elf32_hppa_build_stubs, elf32_hppa_finish_dynamic_sections): .. * elf32-i370.c (i370_elf_adjust_dynamic_symbol, i370_elf_size_dynamic_sections, i370_elf_check_relocs, i370_elf_finish_dynamic_sections): .. * elf32-i386.c (elf_i386_grok_prstatus, elf_i386_adjust_dynamic_symbol, allocate_dynrelocs, elf_i386_size_dynamic_sections, elf_i386_relocate_section, elf_i386_finish_dynamic_sections): .. * elf32-i860.c (i860_howto_pc26_reloc, i860_howto_pc16_reloc, i860_howto_highadj_reloc, i860_howto_splitn_reloc): .. * elf32-ip2k.c (ip2k_is_switch_table_128, ip2k_relax_switch_table_128, ip2k_is_switch_table_256, ip2k_relax_switch_table_256, ip2k_elf_relax_section, adjust_all_relocations, ip2k_elf_relax_delete_bytes): .. * elf32-m32r.c (m32r_elf_do_10_pcrel_reloc, m32r_elf_hi16_reloc, m32r_elf_generic_reloc, m32r_elf_adjust_dynamic_symbol, allocate_dynrelocs, m32r_elf_size_dynamic_sections, m32r_elf_relocate_section, m32r_elf_finish_dynamic_sections, m32r_elf_relax_section, m32r_elf_relax_delete_bytes, m32r_elf_get_relocated_section_contents): .. * elf32-m68hc11.c (m68hc11_elf_build_one_stub, m68hc11_elf_size_one_stub, m68hc11_elf_relax_section, m68hc11_elf_relax_delete_bytes): .. * elf32-m68hc12.c (m68hc12_elf_build_one_stub, m68hc12_elf_size_one_stub): .. * elf32-m68hc1x.c (elf32_m68hc11_size_stubs, elf32_m68hc11_build_stubs, m68hc11_elf_special_reloc): .. * elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_gc_sweep_hook, elf_m68k_adjust_dynamic_symbol, elf_m68k_size_dynamic_sections, elf_m68k_discard_copies, elf_m68k_finish_dynamic_sections): .. * elf32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elf32-or32.c (or32_elf_consth_reloc): .. * elf32-ppc.c (ppc_elf_relax_section, ppc_elf_addr16_ha_reloc, elf_create_pointer_linker_section, ppc_elf_create_linker_section, ppc_elf_additional_program_headers, ppc_elf_adjust_dynamic_symbol, allocate_dynrelocs, ppc_elf_size_dynamic_sections, ppc_elf_finish_dynamic_sections, ppc_elf_grok_prstatus, ppc_elf_final_write_processing): .. * elf32-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections, elf_s390_grok_prstatus): .. * elf32-sh.c (sh_elf_reloc_loop, sh_elf_relax_section, sh_elf_relax_delete_bytes, sh_elf_align_loads, sh_elf_adjust_dynamic_symbol, allocate_dynrelocs, sh_elf_size_dynamic_sections, sh_elf_get_relocated_section_contents, sh_elf_finish_dynamic_sections, elf32_shlin_grok_prstatus): .. * elf32-sh64-com.c (sh64_address_in_cranges, sh64_get_contents_type): .. * elf32-sh64.c (sh64_find_section_for_address, sh64_elf_final_write_processing): .. * elf32-sparc.c (sparc_elf_wdisp16_reloc, sparc_elf_hix22_reloc, sparc_elf_lox10_reloc, elf32_sparc_adjust_dynamic_symbol, allocate_dynrelocs, elf32_sparc_size_dynamic_sections, elf32_sparc_relocate_section, elf32_sparc_finish_dynamic_sections): .. * elf32-v850.c (v850_elf_reloc, v850_elf_relax_section): .. * elf32-vax.c (elf_vax_check_relocs, elf_vax_adjust_dynamic_symbol, elf_vax_size_dynamic_sections, elf_vax_discard_copies, elf_vax_instantiate_got_entries, elf_vax_relocate_section, elf_vax_finish_dynamic_sections): .. * elf32-xstormy16.c (xstormy16_elf_24_reloc, xstormy16_elf_check_relocs, xstormy16_relax_plt_check, xstormy16_elf_relax_section, xstormy16_elf_always_size_sections, xstormy16_elf_finish_dynamic_sections): .. * elf32-xtensa.c (xtensa_read_table_entries, elf_xtensa_allocate_got_size, elf_xtensa_allocate_local_got_size, elf_xtensa_size_dynamic_sections, elf_xtensa_do_reloc, bfd_elf_xtensa_reloc, elf_xtensa_relocate_section, elf_xtensa_combine_prop_entries, elf_xtensa_finish_dynamic_sections, elf_xtensa_discard_info_for_section, elf_xtensa_grok_prstatus, get_relocation_opcode, retrieve_contents, find_relaxable_sections, collect_source_relocs, is_resolvable_asm_expansion, remove_literals, relax_section, shrink_dynamic_reloc_sections, relax_property_section, xtensa_callback_required_dependence): .. * elf64-alpha.c (elf64_alpha_reloc_gpdisp, elf64_alpha_relax_section, elf64_alpha_check_relocs, elf64_alpha_adjust_dynamic_symbol, elf64_alpha_calc_got_offsets_for_symbol, elf64_alpha_calc_got_offsets, elf64_alpha_size_plt_section, elf64_alpha_size_plt_section_1, elf64_alpha_always_size_sections, elf64_alpha_calc_dynrel_sizes, elf64_alpha_size_rela_got_section, elf64_alpha_size_rela_got_1, elf64_alpha_size_dynamic_sections, elf64_alpha_emit_dynrel, elf64_alpha_finish_dynamic_sections, elf64_alpha_final_link): .. * elf64-hppa.c (allocate_dynrel_entries, elf64_hppa_size_dynamic_sections, elf64_hppa_finish_dynamic_sections): .. * elf64-mips.c (mips_elf64_gprel32_reloc, mips16_gprel_reloc, mips_elf64_canonicalize_dynamic_reloc, mips_elf64_slurp_reloc_table, elf64_mips_grok_prstatus): .. * elf64-mmix.c (mmix_elf_perform_relocation, mmix_elf_reloc, mmix_elf_relocate_section, mmix_elf_final_link, mmix_set_relaxable_size, _bfd_mmix_after_linker_allocation, mmix_elf_relax_section, mmix_elf_get_section_contents): .. * elf64-ppc.c (ppc64_elf_object_p, ppc64_elf_grok_prstatus, ppc64_elf_check_relocs, ppc64_elf_func_desc_adjust, ppc64_elf_adjust_dynamic_symbol, ppc64_elf_edit_opd, allocate_dynrelocs, ppc64_elf_size_dynamic_sections, ppc_build_one_stub, ppc_size_one_stub, ppc64_elf_next_toc_section, toc_adjusting_stub_needed, group_sections, ppc64_elf_size_stubs, ppc64_elf_build_stubs, ppc64_elf_relocate_section, ppc64_elf_finish_dynamic_sections): .. * elf64-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections): .. * elf64-sh64.c (sh_elf64_get_relocated_section_contents, sh_elf64_check_relocs, sh64_elf64_adjust_dynamic_symbol, sh64_elf64_discard_copies, sh64_elf64_size_dynamic_sections, sh64_elf64_finish_dynamic_sections): .. * elf64-sparc.c (sparc64_elf_slurp_reloc_table, init_insn_reloc, sparc64_elf_check_relocs, sparc64_elf_adjust_dynamic_symbol, sparc64_elf_size_dynamic_sections, sparc64_elf_relocate_section, sparc64_elf_finish_dynamic_symbol, sparc64_elf_finish_dynamic_sections): .. * elf64-x86-64.c (elf64_x86_64_grok_prstatus, elf64_x86_64_adjust_dynamic_symbol, allocate_dynrelocs, elf64_x86_64_size_dynamic_sections, elf64_x86_64_relocate_section, elf64_x86_64_finish_dynamic_sections): .. * elfarm-nabi.c (elf32_arm_nabi_grok_prstatus): .. * elfcode.h (elf_slurp_reloc_table): .. * elflink.c (_bfd_elf_create_got_section, elf_add_dt_needed_tag, elf_finalize_dynstr, elf_link_add_object_symbols, bfd_elf_size_dynamic_sections, elf_link_sort_relocs, elf_link_input_bfd, bfd_elf_final_link, bfd_elf_discard_info): .. * elfn32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elfxx-ia64.c (elfNN_ia64_relax_section, allocate_dynrel_entries, elfNN_ia64_size_dynamic_sections, elfNN_ia64_install_dyn_reloc, elfNN_ia64_choose_gp, elfNN_ia64_final_link, elfNN_ia64_finish_dynamic_sections): .. * elfxx-mips.c (mips_elf_create_procedure_table, mips_elf_check_mips16_stubs, _bfd_mips_elf_gprel16_with_gp, _bfd_mips_elf_hi16_reloc, _bfd_mips_elf_generic_reloc, mips_elf_global_got_index, mips_elf_multi_got, mips_elf_create_compact_rel_section, mips_elf_calculate_relocation, mips_elf_allocate_dynamic_relocations, mips_elf_create_dynamic_relocation, _bfd_mips_elf_fake_sections, _bfd_mips_relax_section, _bfd_mips_elf_adjust_dynamic_symbol, _bfd_mips_elf_always_size_sections, _bfd_mips_elf_size_dynamic_sections, _bfd_mips_elf_finish_dynamic_symbol, _bfd_mips_elf_finish_dynamic_sections, _bfd_mips_elf_modify_segment_map, _bfd_mips_elf_discard_info, _bfd_mips_elf_write_section, _bfd_mips_elf_set_section_contents, _bfd_elf_mips_get_relocated_section_contents, _bfd_mips_elf_final_link, _bfd_mips_elf_merge_private_bfd_data): .. * hp300hpux.c (callback): .. * hppabsd-core.c (make_bfd_asection): .. * hpux-core.c (make_bfd_asection): .. * i386linux.c (linux_link_create_dynamic_sections, bfd_i386linux_size_dynamic_sections, linux_finish_dynamic_link): .. * i386msdos.c (msdos_write_object_contents): .. * i386os9k.c (os9k_callback, os9k_write_object_contents, os9k_set_section_contents): .. * ieee.c (parse_expression, ieee_slurp_external_symbols, ieee_slurp_sections, ieee_slurp_debug, ieee_slurp_section_data, ieee_write_section_part, do_with_relocs, do_as_repeat, do_without_relocs, ieee_write_debug_part, init_for_output, ieee_set_section_contents): .. * ihex.c (ihex_scan, ihex_read_section, ihex_get_section_contents): .. * irix-core.c (do_sections, make_bfd_asection): .. * libaout.h (aout_section_merge_with_text_p): .. * libbfd.c (_bfd_generic_get_section_contents, _bfd_generic_get_section_contents_in_window): .. * linker.c (default_indirect_link_order): .. * lynx-core.c (make_bfd_asection): .. * m68klinux.c (linux_link_create_dynamic_sections, bfd_m68klinux_size_dynamic_sections, linux_finish_dynamic_link): .. * mach-o.c (bfd_mach_o_make_bfd_section, bfd_mach_o_scan_read_dylinker, bfd_mach_o_scan_read_dylib, bfd_mach_o_scan_read_thread, bfd_mach_o_scan_read_symtab, bfd_mach_o_scan_read_segment): .. * merge.c (_bfd_add_merge_section, record_section, merge_strings, _bfd_merge_sections): .. * mmo.c (mmo_find_sec_w_addr, mmo_get_spec_section, mmo_get_loc, mmo_map_set_sizes, mmo_canonicalize_symtab, mmo_internal_write_section, mmo_write_object_contents): .. * netbsd-core.c (netbsd_core_file_p): .. * nlm32-alpha.c (nlm_alpha_read_reloc, nlm_alpha_write_import, nlm_alpha_set_public_section): .. * nlm32-ppc.c (nlm_powerpc_read_reloc, nlm_powerpc_write_reloc): .. * nlm32-sparc.c (nlm_sparc_write_import): .. * nlmcode.h (add_bfd_section, nlm_swap_auxiliary_headers_in, nlm_compute_section_file_positions): .. * oasys.c (oasys_object_p, oasys_slurp_section_data, oasys_write_sections, oasys_write_data, oasys_set_section_contents): .. * opncls.c (get_debug_link_info): .. * osf-core.c (make_bfd_asection): .. * pdp11.c (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, squirt_out_relocs, final_link, aout_link_input_section): .. * peXXigen.c (_bfd_XXi_swap_sym_in, _bfd_XXi_swap_aouthdr_out, pe_print_idata, pe_print_edata, pe_print_pdata, pe_print_reloc): .. * pef.c (bfd_pef_make_bfd_section, bfd_pef_print_loader_section, bfd_pef_scan_start_address, bfd_pef_parse_symbols): .. * ppcboot.c (ppcboot_object_p, ppcboot_canonicalize_symtab): .. * ptrace-core.c (ptrace_unix_core_file_p): .. * reloc.c (bfd_perform_relocation, bfd_install_relocation, _bfd_final_link_relocate, bfd_generic_relax_section, bfd_generic_get_relocated_section_contents): .. * reloc16.c (bfd_coff_reloc16_relax_section, bfd_coff_reloc16_get_relocated_section_c): .. * riscix.c (riscix_some_aout_object_p): .. * rs6000-core.c (read_hdr, make_bfd_asection): .. * sco5-core.c (make_bfd_asection): .. * simple.c (bfd_simple_get_relocated_section_contents): .. * som.c (som_object_setup, setup_sections, som_prep_headers, som_write_fixups, som_begin_writing, bfd_section_from_som_symbol, som_set_reloc_info, som_get_section_contents, som_bfd_link_split_section): .. * sparclinux.c (linux_link_create_dynamic_sections, bfd_sparclinux_size_dynamic_sections, linux_finish_dynamic_link): .. * srec.c (srec_scan, srec_read_section, srec_get_section_contents): .. * stabs.c (_bfd_link_section_stabs, _bfd_discard_section_stabs, _bfd_write_stab_strings, _bfd_stab_section_offset): .. * sunos.c (sunos_read_dynamic_info, sunos_create_dynamic_sections, bfd_sunos_size_dynamic_sections, sunos_scan_std_relocs, sunos_scan_ext_relocs, sunos_scan_dynamic_symbol, sunos_write_dynamic_symbol, sunos_check_dynamic_reloc, sunos_finish_dynamic_link): .. * syms.c (_bfd_stab_section_find_nearest_line): .. * tekhex.c (first_phase, tekhex_set_section_contents, tekhex_write_object_contents): .. * trad-core.c (trad_unix_core_file_p): .. * versados.c (process_esd, process_otr, process_otr): .. * vms-gsd.c (_bfd_vms_slurp_gsd, _bfd_vms_write_gsd): .. * vms-misc.c (add_new_contents): .. * vms-tir.c (check_section, new_section, _bfd_vms_write_tir): .. * vms.c (vms_set_section_contents): .. * xcofflink.c (xcoff_get_section_contents, xcoff_link_add_symbols, xcoff_sweep, bfd_xcoff_size_dynamic_sections, xcoff_build_ldsyms, _bfd_xcoff_bfd_final_link, xcoff_link_input_bfd): .. * xsym.c (bfd_sym_scan): .. See above. binutils/ * objcopy.c (copy_section): Don't set _cooked_size. include/ * bfdlink.h (struct bfd_link_order): Update comment. ld/ * ldlang.c (print_output_section_statement): Don't print size before relaxation. (IGNORE_SECTION): Remove bfd arg. Update all callers. * ldexp.c (fold_name): .. See below. * ldlang.c (section_already_linked, print_output_section_statement, print_input_section, insert_pad, size_input_section, lang_check_section_addresses, lang_size_sections_1, lang_size_sections, lang_do_assignments_1, lang_set_startof, lang_one_common, lang_reset_memory_regions, lang_process, lang_abs_symbol_at_end_of, lang_do_version_exports_section): .. * ldwrite.c (build_link_order, clone_section, ds, split_sections): .. * pe-dll.c (process_def_file, generate_reloc): .. * emultempl/elf32.em (gld${EMULATION_NAME}_find_statement_assignment, gld${EMULATION_NAME}_before_allocation): .. * emultempl/mmix-elfnmmo.em (mmix_after_allocation): .. * emultempl/sh64elf.em (sh64_elf_${EMULATION_NAME}_before_allocation, sh64_elf_${EMULATION_NAME}_after_allocation): .. * emultempl/sunos.em (gld${EMULATION_NAME}_before_allocation): .. * emultempl/xtensaelf.em (ld_assign_relative_paged_dot, ld_local_file_relocations_fit, ld_xtensa_insert_page_offsets): Use "size" instead of "_raw_size" and "_cooked_size". Expand bfd_section_size macro invocations.
2004-06-24 06:46:28 +02:00
if (section->size != 0
2003-04-01 17:50:31 +02:00
&& (first_section
|| (in_literals && !sec_is_target)
|| (!in_literals && sec_is_target)))
{
do_xtensa_alignment = TRUE;
}
first_section = FALSE;
bfd/ * section.c (struct sec): Rename "_cooked_size" to "size". Rename "_raw_size" to "rawsize". (STD_SECTION): Adjust comments. (bfd_set_section_size, bfd_get_section_contents): Use size. (bfd_malloc_and_get_section): New function. * bfd-in.h (bfd_section_size, bfd_get_section_size): Use size. * coff-sh.c (sh_relax_section): Alloc coff_section_data struct early. Correctly free reloc and contents memory. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Delete FIXME and fake CIE now that we can shink section size to zero. (_bfd_elf_write_section_eh_frame): Likewise.. * elf32-ppc.c (ppc_elf_relax_section): Delay reading section contents. * elf-m10300.c (mn10300_elf_final_link_relocate): Don't use _bfd_stab_section_offset. Use _bfd_elf_section_offset. * stabs.c (_bfd_stab_section_offset_): Remove unused args and unneeded indirection. * elf.c (_bfd_elf_section_offset): .. and update call. * libbfd-in.h (_bfd_stab_section_offset): Update prototype. * libbfd.h: Regenerate. * bfd-in2.h: Regenerate. Replace occurrences of "_raw_size" and "_cooked_size" in most places with "size". Set new "rawsize" for stabs, eh_frame, and SEC_MERGE sections. Use "rawsize", if non-zero, for bfd_get_section_contents calls if the section might be a stabs, eh_frame, or SEC_MERGE section. Similarly use "rawsize", if non-zero, in reloc functions to validate reloc addresses. Use new bfd_malloc_and_get_section in most places where bfd_get_section_contents was called. Expand all occurrences of bfd_section_size and bfd_get_section_size. Rename "raw_size" var in grok_prstatus and similar functions to "size". * aix386-core.c (aix386_core_file_p): .. * aix5ppc-core.c (xcoff64_core_p): .. * aout-adobe.c (aout_adobe_callback, aout_adobe_write_object_contents, aout_adobe_set_section_contents): .. * aout-target.h (callback): .. * aout-tic30.c (tic30_aout_callback, tic30_aout_final_link_relocate, MY_bfd_final_link): .. * aoutf1.h (sunos4_core_file_p): .. * aoutx.h (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, translate_from_native_sym_flags, final_link, aout_link_input_section): .. * binary.c (binary_object_p, binary_canonicalize_symtab, binary_set_section_contents): .. * bout.c (b_out_callback, b_out_write_object_contents, b_out_set_section_contents, b_out_bfd_relax_section, b_out_bfd_get_relocated_section_contents): .. * cisco-core.c (cisco_core_file_validate): .. * coff-alpha.c (alpha_ecoff_object_p, alpha_ecoff_get_relocated_section_conten, alpha_relocate_section): .. * coff-arm.c (coff_arm_relocate_section, bfd_arm_allocate_interworking_sections): .. * coff-h8300.c (h8300_reloc16_extra_cases, h8300_bfd_link_add_symbols): .. * coff-mips.c (mips_refhi_reloc, mips_gprel_reloc): .. * coff-ppc.c (coff_ppc_relocate_section, ppc_allocate_toc_section, ppc_bfd_coff_final_link): .. * coff-rs6000.c (xcoff_reloc_type_br, xcoff_ppc_relocate_section): .. * coff-sh.c (sh_relax_section, sh_relax_delete_bytes, sh_align_loads, sh_coff_get_relocated_section_contents): .. * coff64-rs6000.c (xcoff64_write_object_contents, xcoff64_reloc_type_br, xcoff64_ppc_relocate_section): .. * coffcode.h (coff_compute_section_file_positions, coff_write_object_contents): .. * coffgen.c (make_a_section_from_file, coff_write_symbols, coff_section_symbol, build_debug_section): .. * cofflink.c (coff_link_add_symbols, _bfd_coff_final_link, process_embedded_commands, _bfd_coff_link_input_bfd, _bfd_coff_write_global_sym): .. * cpu-arm.c (bfd_arm_update_notes, bfd_arm_get_mach_from_notes): .. * cpu-ns32k.c (do_ns32k_reloc, _bfd_ns32k_final_link_relocate): .. * dwarf1.c (parse_line_table, _bfd_dwarf1_find_nearest_line): .. * dwarf2.c (read_indirect_string, read_abbrevs, decode_line_info, _bfd_dwarf2_find_nearest_line): .. * ecoff.c (bfd_debug_section, ecoff_set_symbol_info, ecoff_compute_section_file_positions, _bfd_ecoff_write_object_contents, ecoff_indirect_link_order): .. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame, _bfd_elf_discard_section_eh_frame_hdr, _bfd_elf_maybe_strip_eh_frame_hdr, _bfd_elf_eh_frame_section_offset, _bfd_elf_write_section_eh_frame, _bfd_elf_write_section_eh_frame_hdr): .. * elf-hppa.h (elf_hppa_sort_unwind): .. * elf-m10200.c (mn10200_elf_relax_section, mn10200_elf_relax_delete_bytes, mn10200_elf_get_relocated_section_contents): .. * elf-m10300.c (_bfd_mn10300_elf_create_got_section, mn10300_elf_check_relocs, mn10300_elf_relax_section, mn10300_elf_relax_delete_bytes, mn10300_elf_get_relocated_section_contents, _bfd_mn10300_elf_adjust_dynamic_symbol, _bfd_mn10300_elf_discard_copies, _bfd_mn10300_elf_size_dynamic_sections, _bfd_mn10300_elf_finish_dynamic_sections): .. * elf.c (_bfd_elf_print_private_bfd_data, bfd_elf_get_bfd_needed_list, _bfd_elf_make_section_from_phdr, elf_fake_sections, bfd_elf_set_group_contents, map_sections_to_segments, elf_sort_sections, assign_file_positions_for_segments, SECTION_SIZE, copy_private_bfd_data, _bfd_elf_get_dynamic_reloc_upper_bound, _bfd_elf_canonicalize_dynamic_reloc, elfcore_maybe_make_sect, _bfd_elfcore_make_pseudosection, elfcore_grok_prstatus, elfcore_grok_lwpstatus, elfcore_grok_win32pstatus, elfcore_grok_note, elfcore_grok_nto_status, elfcore_grok_nto_gregs, _bfd_elf_rel_local_sym, _bfd_elf_get_synthetic_symtab): .. * elf32-arm.h (bfd_elf32_arm_allocate_interworking_sect, bfd_elf32_arm_process_before_allocation, elf32_arm_adjust_dynamic_symbol, allocate_dynrelocs, elf32_arm_size_dynamic_sections, elf32_arm_finish_dynamic_sections, elf32_arm_write_section): .. * elf32-cris.c (cris_elf_grok_prstatus, elf_cris_finish_dynamic_sections, cris_elf_gc_sweep_hook, elf_cris_adjust_gotplt_to_got, elf_cris_adjust_dynamic_symbol, cris_elf_check_relocs, elf_cris_size_dynamic_sections, elf_cris_discard_excess_dso_dynamics, elf_cris_discard_excess_program_dynamics): .. * elf32-d30v.c (bfd_elf_d30v_reloc, bfd_elf_d30v_reloc_21): .. * elf32-dlx.c (_bfd_dlx_elf_hi16_reloc): .. * elf32-frv.c (_frvfdpic_add_dyn_reloc, _frvfdpic_add_rofixup, _frv_create_got_section, _frvfdpic_assign_plt_entries, elf32_frvfdpic_size_dynamic_sections, elf32_frvfdpic_modify_segment_map, elf32_frvfdpic_finish_dynamic_sections): .. * elf32-h8300.c (elf32_h8_relax_section, elf32_h8_relax_delete_bytes, elf32_h8_get_relocated_section_contents): .. * elf32-hppa.c (hppa_build_one_stub, hppa_size_one_stub, elf32_hppa_adjust_dynamic_symbol, allocate_plt_static, allocate_dynrelocs, elf32_hppa_size_dynamic_sections, group_sections, elf32_hppa_size_stubs, elf32_hppa_set_gp, elf32_hppa_build_stubs, elf32_hppa_finish_dynamic_sections): .. * elf32-i370.c (i370_elf_adjust_dynamic_symbol, i370_elf_size_dynamic_sections, i370_elf_check_relocs, i370_elf_finish_dynamic_sections): .. * elf32-i386.c (elf_i386_grok_prstatus, elf_i386_adjust_dynamic_symbol, allocate_dynrelocs, elf_i386_size_dynamic_sections, elf_i386_relocate_section, elf_i386_finish_dynamic_sections): .. * elf32-i860.c (i860_howto_pc26_reloc, i860_howto_pc16_reloc, i860_howto_highadj_reloc, i860_howto_splitn_reloc): .. * elf32-ip2k.c (ip2k_is_switch_table_128, ip2k_relax_switch_table_128, ip2k_is_switch_table_256, ip2k_relax_switch_table_256, ip2k_elf_relax_section, adjust_all_relocations, ip2k_elf_relax_delete_bytes): .. * elf32-m32r.c (m32r_elf_do_10_pcrel_reloc, m32r_elf_hi16_reloc, m32r_elf_generic_reloc, m32r_elf_adjust_dynamic_symbol, allocate_dynrelocs, m32r_elf_size_dynamic_sections, m32r_elf_relocate_section, m32r_elf_finish_dynamic_sections, m32r_elf_relax_section, m32r_elf_relax_delete_bytes, m32r_elf_get_relocated_section_contents): .. * elf32-m68hc11.c (m68hc11_elf_build_one_stub, m68hc11_elf_size_one_stub, m68hc11_elf_relax_section, m68hc11_elf_relax_delete_bytes): .. * elf32-m68hc12.c (m68hc12_elf_build_one_stub, m68hc12_elf_size_one_stub): .. * elf32-m68hc1x.c (elf32_m68hc11_size_stubs, elf32_m68hc11_build_stubs, m68hc11_elf_special_reloc): .. * elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_gc_sweep_hook, elf_m68k_adjust_dynamic_symbol, elf_m68k_size_dynamic_sections, elf_m68k_discard_copies, elf_m68k_finish_dynamic_sections): .. * elf32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elf32-or32.c (or32_elf_consth_reloc): .. * elf32-ppc.c (ppc_elf_relax_section, ppc_elf_addr16_ha_reloc, elf_create_pointer_linker_section, ppc_elf_create_linker_section, ppc_elf_additional_program_headers, ppc_elf_adjust_dynamic_symbol, allocate_dynrelocs, ppc_elf_size_dynamic_sections, ppc_elf_finish_dynamic_sections, ppc_elf_grok_prstatus, ppc_elf_final_write_processing): .. * elf32-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections, elf_s390_grok_prstatus): .. * elf32-sh.c (sh_elf_reloc_loop, sh_elf_relax_section, sh_elf_relax_delete_bytes, sh_elf_align_loads, sh_elf_adjust_dynamic_symbol, allocate_dynrelocs, sh_elf_size_dynamic_sections, sh_elf_get_relocated_section_contents, sh_elf_finish_dynamic_sections, elf32_shlin_grok_prstatus): .. * elf32-sh64-com.c (sh64_address_in_cranges, sh64_get_contents_type): .. * elf32-sh64.c (sh64_find_section_for_address, sh64_elf_final_write_processing): .. * elf32-sparc.c (sparc_elf_wdisp16_reloc, sparc_elf_hix22_reloc, sparc_elf_lox10_reloc, elf32_sparc_adjust_dynamic_symbol, allocate_dynrelocs, elf32_sparc_size_dynamic_sections, elf32_sparc_relocate_section, elf32_sparc_finish_dynamic_sections): .. * elf32-v850.c (v850_elf_reloc, v850_elf_relax_section): .. * elf32-vax.c (elf_vax_check_relocs, elf_vax_adjust_dynamic_symbol, elf_vax_size_dynamic_sections, elf_vax_discard_copies, elf_vax_instantiate_got_entries, elf_vax_relocate_section, elf_vax_finish_dynamic_sections): .. * elf32-xstormy16.c (xstormy16_elf_24_reloc, xstormy16_elf_check_relocs, xstormy16_relax_plt_check, xstormy16_elf_relax_section, xstormy16_elf_always_size_sections, xstormy16_elf_finish_dynamic_sections): .. * elf32-xtensa.c (xtensa_read_table_entries, elf_xtensa_allocate_got_size, elf_xtensa_allocate_local_got_size, elf_xtensa_size_dynamic_sections, elf_xtensa_do_reloc, bfd_elf_xtensa_reloc, elf_xtensa_relocate_section, elf_xtensa_combine_prop_entries, elf_xtensa_finish_dynamic_sections, elf_xtensa_discard_info_for_section, elf_xtensa_grok_prstatus, get_relocation_opcode, retrieve_contents, find_relaxable_sections, collect_source_relocs, is_resolvable_asm_expansion, remove_literals, relax_section, shrink_dynamic_reloc_sections, relax_property_section, xtensa_callback_required_dependence): .. * elf64-alpha.c (elf64_alpha_reloc_gpdisp, elf64_alpha_relax_section, elf64_alpha_check_relocs, elf64_alpha_adjust_dynamic_symbol, elf64_alpha_calc_got_offsets_for_symbol, elf64_alpha_calc_got_offsets, elf64_alpha_size_plt_section, elf64_alpha_size_plt_section_1, elf64_alpha_always_size_sections, elf64_alpha_calc_dynrel_sizes, elf64_alpha_size_rela_got_section, elf64_alpha_size_rela_got_1, elf64_alpha_size_dynamic_sections, elf64_alpha_emit_dynrel, elf64_alpha_finish_dynamic_sections, elf64_alpha_final_link): .. * elf64-hppa.c (allocate_dynrel_entries, elf64_hppa_size_dynamic_sections, elf64_hppa_finish_dynamic_sections): .. * elf64-mips.c (mips_elf64_gprel32_reloc, mips16_gprel_reloc, mips_elf64_canonicalize_dynamic_reloc, mips_elf64_slurp_reloc_table, elf64_mips_grok_prstatus): .. * elf64-mmix.c (mmix_elf_perform_relocation, mmix_elf_reloc, mmix_elf_relocate_section, mmix_elf_final_link, mmix_set_relaxable_size, _bfd_mmix_after_linker_allocation, mmix_elf_relax_section, mmix_elf_get_section_contents): .. * elf64-ppc.c (ppc64_elf_object_p, ppc64_elf_grok_prstatus, ppc64_elf_check_relocs, ppc64_elf_func_desc_adjust, ppc64_elf_adjust_dynamic_symbol, ppc64_elf_edit_opd, allocate_dynrelocs, ppc64_elf_size_dynamic_sections, ppc_build_one_stub, ppc_size_one_stub, ppc64_elf_next_toc_section, toc_adjusting_stub_needed, group_sections, ppc64_elf_size_stubs, ppc64_elf_build_stubs, ppc64_elf_relocate_section, ppc64_elf_finish_dynamic_sections): .. * elf64-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections): .. * elf64-sh64.c (sh_elf64_get_relocated_section_contents, sh_elf64_check_relocs, sh64_elf64_adjust_dynamic_symbol, sh64_elf64_discard_copies, sh64_elf64_size_dynamic_sections, sh64_elf64_finish_dynamic_sections): .. * elf64-sparc.c (sparc64_elf_slurp_reloc_table, init_insn_reloc, sparc64_elf_check_relocs, sparc64_elf_adjust_dynamic_symbol, sparc64_elf_size_dynamic_sections, sparc64_elf_relocate_section, sparc64_elf_finish_dynamic_symbol, sparc64_elf_finish_dynamic_sections): .. * elf64-x86-64.c (elf64_x86_64_grok_prstatus, elf64_x86_64_adjust_dynamic_symbol, allocate_dynrelocs, elf64_x86_64_size_dynamic_sections, elf64_x86_64_relocate_section, elf64_x86_64_finish_dynamic_sections): .. * elfarm-nabi.c (elf32_arm_nabi_grok_prstatus): .. * elfcode.h (elf_slurp_reloc_table): .. * elflink.c (_bfd_elf_create_got_section, elf_add_dt_needed_tag, elf_finalize_dynstr, elf_link_add_object_symbols, bfd_elf_size_dynamic_sections, elf_link_sort_relocs, elf_link_input_bfd, bfd_elf_final_link, bfd_elf_discard_info): .. * elfn32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elfxx-ia64.c (elfNN_ia64_relax_section, allocate_dynrel_entries, elfNN_ia64_size_dynamic_sections, elfNN_ia64_install_dyn_reloc, elfNN_ia64_choose_gp, elfNN_ia64_final_link, elfNN_ia64_finish_dynamic_sections): .. * elfxx-mips.c (mips_elf_create_procedure_table, mips_elf_check_mips16_stubs, _bfd_mips_elf_gprel16_with_gp, _bfd_mips_elf_hi16_reloc, _bfd_mips_elf_generic_reloc, mips_elf_global_got_index, mips_elf_multi_got, mips_elf_create_compact_rel_section, mips_elf_calculate_relocation, mips_elf_allocate_dynamic_relocations, mips_elf_create_dynamic_relocation, _bfd_mips_elf_fake_sections, _bfd_mips_relax_section, _bfd_mips_elf_adjust_dynamic_symbol, _bfd_mips_elf_always_size_sections, _bfd_mips_elf_size_dynamic_sections, _bfd_mips_elf_finish_dynamic_symbol, _bfd_mips_elf_finish_dynamic_sections, _bfd_mips_elf_modify_segment_map, _bfd_mips_elf_discard_info, _bfd_mips_elf_write_section, _bfd_mips_elf_set_section_contents, _bfd_elf_mips_get_relocated_section_contents, _bfd_mips_elf_final_link, _bfd_mips_elf_merge_private_bfd_data): .. * hp300hpux.c (callback): .. * hppabsd-core.c (make_bfd_asection): .. * hpux-core.c (make_bfd_asection): .. * i386linux.c (linux_link_create_dynamic_sections, bfd_i386linux_size_dynamic_sections, linux_finish_dynamic_link): .. * i386msdos.c (msdos_write_object_contents): .. * i386os9k.c (os9k_callback, os9k_write_object_contents, os9k_set_section_contents): .. * ieee.c (parse_expression, ieee_slurp_external_symbols, ieee_slurp_sections, ieee_slurp_debug, ieee_slurp_section_data, ieee_write_section_part, do_with_relocs, do_as_repeat, do_without_relocs, ieee_write_debug_part, init_for_output, ieee_set_section_contents): .. * ihex.c (ihex_scan, ihex_read_section, ihex_get_section_contents): .. * irix-core.c (do_sections, make_bfd_asection): .. * libaout.h (aout_section_merge_with_text_p): .. * libbfd.c (_bfd_generic_get_section_contents, _bfd_generic_get_section_contents_in_window): .. * linker.c (default_indirect_link_order): .. * lynx-core.c (make_bfd_asection): .. * m68klinux.c (linux_link_create_dynamic_sections, bfd_m68klinux_size_dynamic_sections, linux_finish_dynamic_link): .. * mach-o.c (bfd_mach_o_make_bfd_section, bfd_mach_o_scan_read_dylinker, bfd_mach_o_scan_read_dylib, bfd_mach_o_scan_read_thread, bfd_mach_o_scan_read_symtab, bfd_mach_o_scan_read_segment): .. * merge.c (_bfd_add_merge_section, record_section, merge_strings, _bfd_merge_sections): .. * mmo.c (mmo_find_sec_w_addr, mmo_get_spec_section, mmo_get_loc, mmo_map_set_sizes, mmo_canonicalize_symtab, mmo_internal_write_section, mmo_write_object_contents): .. * netbsd-core.c (netbsd_core_file_p): .. * nlm32-alpha.c (nlm_alpha_read_reloc, nlm_alpha_write_import, nlm_alpha_set_public_section): .. * nlm32-ppc.c (nlm_powerpc_read_reloc, nlm_powerpc_write_reloc): .. * nlm32-sparc.c (nlm_sparc_write_import): .. * nlmcode.h (add_bfd_section, nlm_swap_auxiliary_headers_in, nlm_compute_section_file_positions): .. * oasys.c (oasys_object_p, oasys_slurp_section_data, oasys_write_sections, oasys_write_data, oasys_set_section_contents): .. * opncls.c (get_debug_link_info): .. * osf-core.c (make_bfd_asection): .. * pdp11.c (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, squirt_out_relocs, final_link, aout_link_input_section): .. * peXXigen.c (_bfd_XXi_swap_sym_in, _bfd_XXi_swap_aouthdr_out, pe_print_idata, pe_print_edata, pe_print_pdata, pe_print_reloc): .. * pef.c (bfd_pef_make_bfd_section, bfd_pef_print_loader_section, bfd_pef_scan_start_address, bfd_pef_parse_symbols): .. * ppcboot.c (ppcboot_object_p, ppcboot_canonicalize_symtab): .. * ptrace-core.c (ptrace_unix_core_file_p): .. * reloc.c (bfd_perform_relocation, bfd_install_relocation, _bfd_final_link_relocate, bfd_generic_relax_section, bfd_generic_get_relocated_section_contents): .. * reloc16.c (bfd_coff_reloc16_relax_section, bfd_coff_reloc16_get_relocated_section_c): .. * riscix.c (riscix_some_aout_object_p): .. * rs6000-core.c (read_hdr, make_bfd_asection): .. * sco5-core.c (make_bfd_asection): .. * simple.c (bfd_simple_get_relocated_section_contents): .. * som.c (som_object_setup, setup_sections, som_prep_headers, som_write_fixups, som_begin_writing, bfd_section_from_som_symbol, som_set_reloc_info, som_get_section_contents, som_bfd_link_split_section): .. * sparclinux.c (linux_link_create_dynamic_sections, bfd_sparclinux_size_dynamic_sections, linux_finish_dynamic_link): .. * srec.c (srec_scan, srec_read_section, srec_get_section_contents): .. * stabs.c (_bfd_link_section_stabs, _bfd_discard_section_stabs, _bfd_write_stab_strings, _bfd_stab_section_offset): .. * sunos.c (sunos_read_dynamic_info, sunos_create_dynamic_sections, bfd_sunos_size_dynamic_sections, sunos_scan_std_relocs, sunos_scan_ext_relocs, sunos_scan_dynamic_symbol, sunos_write_dynamic_symbol, sunos_check_dynamic_reloc, sunos_finish_dynamic_link): .. * syms.c (_bfd_stab_section_find_nearest_line): .. * tekhex.c (first_phase, tekhex_set_section_contents, tekhex_write_object_contents): .. * trad-core.c (trad_unix_core_file_p): .. * versados.c (process_esd, process_otr, process_otr): .. * vms-gsd.c (_bfd_vms_slurp_gsd, _bfd_vms_write_gsd): .. * vms-misc.c (add_new_contents): .. * vms-tir.c (check_section, new_section, _bfd_vms_write_tir): .. * vms.c (vms_set_section_contents): .. * xcofflink.c (xcoff_get_section_contents, xcoff_link_add_symbols, xcoff_sweep, bfd_xcoff_size_dynamic_sections, xcoff_build_ldsyms, _bfd_xcoff_bfd_final_link, xcoff_link_input_bfd): .. * xsym.c (bfd_sym_scan): .. See above. binutils/ * objcopy.c (copy_section): Don't set _cooked_size. include/ * bfdlink.h (struct bfd_link_order): Update comment. ld/ * ldlang.c (print_output_section_statement): Don't print size before relaxation. (IGNORE_SECTION): Remove bfd arg. Update all callers. * ldexp.c (fold_name): .. See below. * ldlang.c (section_already_linked, print_output_section_statement, print_input_section, insert_pad, size_input_section, lang_check_section_addresses, lang_size_sections_1, lang_size_sections, lang_do_assignments_1, lang_set_startof, lang_one_common, lang_reset_memory_regions, lang_process, lang_abs_symbol_at_end_of, lang_do_version_exports_section): .. * ldwrite.c (build_link_order, clone_section, ds, split_sections): .. * pe-dll.c (process_def_file, generate_reloc): .. * emultempl/elf32.em (gld${EMULATION_NAME}_find_statement_assignment, gld${EMULATION_NAME}_before_allocation): .. * emultempl/mmix-elfnmmo.em (mmix_after_allocation): .. * emultempl/sh64elf.em (sh64_elf_${EMULATION_NAME}_before_allocation, sh64_elf_${EMULATION_NAME}_after_allocation): .. * emultempl/sunos.em (gld${EMULATION_NAME}_before_allocation): .. * emultempl/xtensaelf.em (ld_assign_relative_paged_dot, ld_local_file_relocations_fit, ld_xtensa_insert_page_offsets): Use "size" instead of "_raw_size" and "_cooked_size". Expand bfd_section_size macro invocations.
2004-06-24 06:46:28 +02:00
if (section->size != 0)
2003-04-01 17:50:31 +02:00
in_literals = (sec_is_target && !sec_is_source);
}
if (do_xtensa_alignment && xtensa_page_power != 0)
dot += (1 << xtensa_page_power);
dot = align_power (dot, align_pow);
section->output_offset = dot;
bfd/ * section.c (struct sec): Rename "_cooked_size" to "size". Rename "_raw_size" to "rawsize". (STD_SECTION): Adjust comments. (bfd_set_section_size, bfd_get_section_contents): Use size. (bfd_malloc_and_get_section): New function. * bfd-in.h (bfd_section_size, bfd_get_section_size): Use size. * coff-sh.c (sh_relax_section): Alloc coff_section_data struct early. Correctly free reloc and contents memory. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Delete FIXME and fake CIE now that we can shink section size to zero. (_bfd_elf_write_section_eh_frame): Likewise.. * elf32-ppc.c (ppc_elf_relax_section): Delay reading section contents. * elf-m10300.c (mn10300_elf_final_link_relocate): Don't use _bfd_stab_section_offset. Use _bfd_elf_section_offset. * stabs.c (_bfd_stab_section_offset_): Remove unused args and unneeded indirection. * elf.c (_bfd_elf_section_offset): .. and update call. * libbfd-in.h (_bfd_stab_section_offset): Update prototype. * libbfd.h: Regenerate. * bfd-in2.h: Regenerate. Replace occurrences of "_raw_size" and "_cooked_size" in most places with "size". Set new "rawsize" for stabs, eh_frame, and SEC_MERGE sections. Use "rawsize", if non-zero, for bfd_get_section_contents calls if the section might be a stabs, eh_frame, or SEC_MERGE section. Similarly use "rawsize", if non-zero, in reloc functions to validate reloc addresses. Use new bfd_malloc_and_get_section in most places where bfd_get_section_contents was called. Expand all occurrences of bfd_section_size and bfd_get_section_size. Rename "raw_size" var in grok_prstatus and similar functions to "size". * aix386-core.c (aix386_core_file_p): .. * aix5ppc-core.c (xcoff64_core_p): .. * aout-adobe.c (aout_adobe_callback, aout_adobe_write_object_contents, aout_adobe_set_section_contents): .. * aout-target.h (callback): .. * aout-tic30.c (tic30_aout_callback, tic30_aout_final_link_relocate, MY_bfd_final_link): .. * aoutf1.h (sunos4_core_file_p): .. * aoutx.h (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, translate_from_native_sym_flags, final_link, aout_link_input_section): .. * binary.c (binary_object_p, binary_canonicalize_symtab, binary_set_section_contents): .. * bout.c (b_out_callback, b_out_write_object_contents, b_out_set_section_contents, b_out_bfd_relax_section, b_out_bfd_get_relocated_section_contents): .. * cisco-core.c (cisco_core_file_validate): .. * coff-alpha.c (alpha_ecoff_object_p, alpha_ecoff_get_relocated_section_conten, alpha_relocate_section): .. * coff-arm.c (coff_arm_relocate_section, bfd_arm_allocate_interworking_sections): .. * coff-h8300.c (h8300_reloc16_extra_cases, h8300_bfd_link_add_symbols): .. * coff-mips.c (mips_refhi_reloc, mips_gprel_reloc): .. * coff-ppc.c (coff_ppc_relocate_section, ppc_allocate_toc_section, ppc_bfd_coff_final_link): .. * coff-rs6000.c (xcoff_reloc_type_br, xcoff_ppc_relocate_section): .. * coff-sh.c (sh_relax_section, sh_relax_delete_bytes, sh_align_loads, sh_coff_get_relocated_section_contents): .. * coff64-rs6000.c (xcoff64_write_object_contents, xcoff64_reloc_type_br, xcoff64_ppc_relocate_section): .. * coffcode.h (coff_compute_section_file_positions, coff_write_object_contents): .. * coffgen.c (make_a_section_from_file, coff_write_symbols, coff_section_symbol, build_debug_section): .. * cofflink.c (coff_link_add_symbols, _bfd_coff_final_link, process_embedded_commands, _bfd_coff_link_input_bfd, _bfd_coff_write_global_sym): .. * cpu-arm.c (bfd_arm_update_notes, bfd_arm_get_mach_from_notes): .. * cpu-ns32k.c (do_ns32k_reloc, _bfd_ns32k_final_link_relocate): .. * dwarf1.c (parse_line_table, _bfd_dwarf1_find_nearest_line): .. * dwarf2.c (read_indirect_string, read_abbrevs, decode_line_info, _bfd_dwarf2_find_nearest_line): .. * ecoff.c (bfd_debug_section, ecoff_set_symbol_info, ecoff_compute_section_file_positions, _bfd_ecoff_write_object_contents, ecoff_indirect_link_order): .. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame, _bfd_elf_discard_section_eh_frame_hdr, _bfd_elf_maybe_strip_eh_frame_hdr, _bfd_elf_eh_frame_section_offset, _bfd_elf_write_section_eh_frame, _bfd_elf_write_section_eh_frame_hdr): .. * elf-hppa.h (elf_hppa_sort_unwind): .. * elf-m10200.c (mn10200_elf_relax_section, mn10200_elf_relax_delete_bytes, mn10200_elf_get_relocated_section_contents): .. * elf-m10300.c (_bfd_mn10300_elf_create_got_section, mn10300_elf_check_relocs, mn10300_elf_relax_section, mn10300_elf_relax_delete_bytes, mn10300_elf_get_relocated_section_contents, _bfd_mn10300_elf_adjust_dynamic_symbol, _bfd_mn10300_elf_discard_copies, _bfd_mn10300_elf_size_dynamic_sections, _bfd_mn10300_elf_finish_dynamic_sections): .. * elf.c (_bfd_elf_print_private_bfd_data, bfd_elf_get_bfd_needed_list, _bfd_elf_make_section_from_phdr, elf_fake_sections, bfd_elf_set_group_contents, map_sections_to_segments, elf_sort_sections, assign_file_positions_for_segments, SECTION_SIZE, copy_private_bfd_data, _bfd_elf_get_dynamic_reloc_upper_bound, _bfd_elf_canonicalize_dynamic_reloc, elfcore_maybe_make_sect, _bfd_elfcore_make_pseudosection, elfcore_grok_prstatus, elfcore_grok_lwpstatus, elfcore_grok_win32pstatus, elfcore_grok_note, elfcore_grok_nto_status, elfcore_grok_nto_gregs, _bfd_elf_rel_local_sym, _bfd_elf_get_synthetic_symtab): .. * elf32-arm.h (bfd_elf32_arm_allocate_interworking_sect, bfd_elf32_arm_process_before_allocation, elf32_arm_adjust_dynamic_symbol, allocate_dynrelocs, elf32_arm_size_dynamic_sections, elf32_arm_finish_dynamic_sections, elf32_arm_write_section): .. * elf32-cris.c (cris_elf_grok_prstatus, elf_cris_finish_dynamic_sections, cris_elf_gc_sweep_hook, elf_cris_adjust_gotplt_to_got, elf_cris_adjust_dynamic_symbol, cris_elf_check_relocs, elf_cris_size_dynamic_sections, elf_cris_discard_excess_dso_dynamics, elf_cris_discard_excess_program_dynamics): .. * elf32-d30v.c (bfd_elf_d30v_reloc, bfd_elf_d30v_reloc_21): .. * elf32-dlx.c (_bfd_dlx_elf_hi16_reloc): .. * elf32-frv.c (_frvfdpic_add_dyn_reloc, _frvfdpic_add_rofixup, _frv_create_got_section, _frvfdpic_assign_plt_entries, elf32_frvfdpic_size_dynamic_sections, elf32_frvfdpic_modify_segment_map, elf32_frvfdpic_finish_dynamic_sections): .. * elf32-h8300.c (elf32_h8_relax_section, elf32_h8_relax_delete_bytes, elf32_h8_get_relocated_section_contents): .. * elf32-hppa.c (hppa_build_one_stub, hppa_size_one_stub, elf32_hppa_adjust_dynamic_symbol, allocate_plt_static, allocate_dynrelocs, elf32_hppa_size_dynamic_sections, group_sections, elf32_hppa_size_stubs, elf32_hppa_set_gp, elf32_hppa_build_stubs, elf32_hppa_finish_dynamic_sections): .. * elf32-i370.c (i370_elf_adjust_dynamic_symbol, i370_elf_size_dynamic_sections, i370_elf_check_relocs, i370_elf_finish_dynamic_sections): .. * elf32-i386.c (elf_i386_grok_prstatus, elf_i386_adjust_dynamic_symbol, allocate_dynrelocs, elf_i386_size_dynamic_sections, elf_i386_relocate_section, elf_i386_finish_dynamic_sections): .. * elf32-i860.c (i860_howto_pc26_reloc, i860_howto_pc16_reloc, i860_howto_highadj_reloc, i860_howto_splitn_reloc): .. * elf32-ip2k.c (ip2k_is_switch_table_128, ip2k_relax_switch_table_128, ip2k_is_switch_table_256, ip2k_relax_switch_table_256, ip2k_elf_relax_section, adjust_all_relocations, ip2k_elf_relax_delete_bytes): .. * elf32-m32r.c (m32r_elf_do_10_pcrel_reloc, m32r_elf_hi16_reloc, m32r_elf_generic_reloc, m32r_elf_adjust_dynamic_symbol, allocate_dynrelocs, m32r_elf_size_dynamic_sections, m32r_elf_relocate_section, m32r_elf_finish_dynamic_sections, m32r_elf_relax_section, m32r_elf_relax_delete_bytes, m32r_elf_get_relocated_section_contents): .. * elf32-m68hc11.c (m68hc11_elf_build_one_stub, m68hc11_elf_size_one_stub, m68hc11_elf_relax_section, m68hc11_elf_relax_delete_bytes): .. * elf32-m68hc12.c (m68hc12_elf_build_one_stub, m68hc12_elf_size_one_stub): .. * elf32-m68hc1x.c (elf32_m68hc11_size_stubs, elf32_m68hc11_build_stubs, m68hc11_elf_special_reloc): .. * elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_gc_sweep_hook, elf_m68k_adjust_dynamic_symbol, elf_m68k_size_dynamic_sections, elf_m68k_discard_copies, elf_m68k_finish_dynamic_sections): .. * elf32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elf32-or32.c (or32_elf_consth_reloc): .. * elf32-ppc.c (ppc_elf_relax_section, ppc_elf_addr16_ha_reloc, elf_create_pointer_linker_section, ppc_elf_create_linker_section, ppc_elf_additional_program_headers, ppc_elf_adjust_dynamic_symbol, allocate_dynrelocs, ppc_elf_size_dynamic_sections, ppc_elf_finish_dynamic_sections, ppc_elf_grok_prstatus, ppc_elf_final_write_processing): .. * elf32-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections, elf_s390_grok_prstatus): .. * elf32-sh.c (sh_elf_reloc_loop, sh_elf_relax_section, sh_elf_relax_delete_bytes, sh_elf_align_loads, sh_elf_adjust_dynamic_symbol, allocate_dynrelocs, sh_elf_size_dynamic_sections, sh_elf_get_relocated_section_contents, sh_elf_finish_dynamic_sections, elf32_shlin_grok_prstatus): .. * elf32-sh64-com.c (sh64_address_in_cranges, sh64_get_contents_type): .. * elf32-sh64.c (sh64_find_section_for_address, sh64_elf_final_write_processing): .. * elf32-sparc.c (sparc_elf_wdisp16_reloc, sparc_elf_hix22_reloc, sparc_elf_lox10_reloc, elf32_sparc_adjust_dynamic_symbol, allocate_dynrelocs, elf32_sparc_size_dynamic_sections, elf32_sparc_relocate_section, elf32_sparc_finish_dynamic_sections): .. * elf32-v850.c (v850_elf_reloc, v850_elf_relax_section): .. * elf32-vax.c (elf_vax_check_relocs, elf_vax_adjust_dynamic_symbol, elf_vax_size_dynamic_sections, elf_vax_discard_copies, elf_vax_instantiate_got_entries, elf_vax_relocate_section, elf_vax_finish_dynamic_sections): .. * elf32-xstormy16.c (xstormy16_elf_24_reloc, xstormy16_elf_check_relocs, xstormy16_relax_plt_check, xstormy16_elf_relax_section, xstormy16_elf_always_size_sections, xstormy16_elf_finish_dynamic_sections): .. * elf32-xtensa.c (xtensa_read_table_entries, elf_xtensa_allocate_got_size, elf_xtensa_allocate_local_got_size, elf_xtensa_size_dynamic_sections, elf_xtensa_do_reloc, bfd_elf_xtensa_reloc, elf_xtensa_relocate_section, elf_xtensa_combine_prop_entries, elf_xtensa_finish_dynamic_sections, elf_xtensa_discard_info_for_section, elf_xtensa_grok_prstatus, get_relocation_opcode, retrieve_contents, find_relaxable_sections, collect_source_relocs, is_resolvable_asm_expansion, remove_literals, relax_section, shrink_dynamic_reloc_sections, relax_property_section, xtensa_callback_required_dependence): .. * elf64-alpha.c (elf64_alpha_reloc_gpdisp, elf64_alpha_relax_section, elf64_alpha_check_relocs, elf64_alpha_adjust_dynamic_symbol, elf64_alpha_calc_got_offsets_for_symbol, elf64_alpha_calc_got_offsets, elf64_alpha_size_plt_section, elf64_alpha_size_plt_section_1, elf64_alpha_always_size_sections, elf64_alpha_calc_dynrel_sizes, elf64_alpha_size_rela_got_section, elf64_alpha_size_rela_got_1, elf64_alpha_size_dynamic_sections, elf64_alpha_emit_dynrel, elf64_alpha_finish_dynamic_sections, elf64_alpha_final_link): .. * elf64-hppa.c (allocate_dynrel_entries, elf64_hppa_size_dynamic_sections, elf64_hppa_finish_dynamic_sections): .. * elf64-mips.c (mips_elf64_gprel32_reloc, mips16_gprel_reloc, mips_elf64_canonicalize_dynamic_reloc, mips_elf64_slurp_reloc_table, elf64_mips_grok_prstatus): .. * elf64-mmix.c (mmix_elf_perform_relocation, mmix_elf_reloc, mmix_elf_relocate_section, mmix_elf_final_link, mmix_set_relaxable_size, _bfd_mmix_after_linker_allocation, mmix_elf_relax_section, mmix_elf_get_section_contents): .. * elf64-ppc.c (ppc64_elf_object_p, ppc64_elf_grok_prstatus, ppc64_elf_check_relocs, ppc64_elf_func_desc_adjust, ppc64_elf_adjust_dynamic_symbol, ppc64_elf_edit_opd, allocate_dynrelocs, ppc64_elf_size_dynamic_sections, ppc_build_one_stub, ppc_size_one_stub, ppc64_elf_next_toc_section, toc_adjusting_stub_needed, group_sections, ppc64_elf_size_stubs, ppc64_elf_build_stubs, ppc64_elf_relocate_section, ppc64_elf_finish_dynamic_sections): .. * elf64-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections): .. * elf64-sh64.c (sh_elf64_get_relocated_section_contents, sh_elf64_check_relocs, sh64_elf64_adjust_dynamic_symbol, sh64_elf64_discard_copies, sh64_elf64_size_dynamic_sections, sh64_elf64_finish_dynamic_sections): .. * elf64-sparc.c (sparc64_elf_slurp_reloc_table, init_insn_reloc, sparc64_elf_check_relocs, sparc64_elf_adjust_dynamic_symbol, sparc64_elf_size_dynamic_sections, sparc64_elf_relocate_section, sparc64_elf_finish_dynamic_symbol, sparc64_elf_finish_dynamic_sections): .. * elf64-x86-64.c (elf64_x86_64_grok_prstatus, elf64_x86_64_adjust_dynamic_symbol, allocate_dynrelocs, elf64_x86_64_size_dynamic_sections, elf64_x86_64_relocate_section, elf64_x86_64_finish_dynamic_sections): .. * elfarm-nabi.c (elf32_arm_nabi_grok_prstatus): .. * elfcode.h (elf_slurp_reloc_table): .. * elflink.c (_bfd_elf_create_got_section, elf_add_dt_needed_tag, elf_finalize_dynstr, elf_link_add_object_symbols, bfd_elf_size_dynamic_sections, elf_link_sort_relocs, elf_link_input_bfd, bfd_elf_final_link, bfd_elf_discard_info): .. * elfn32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elfxx-ia64.c (elfNN_ia64_relax_section, allocate_dynrel_entries, elfNN_ia64_size_dynamic_sections, elfNN_ia64_install_dyn_reloc, elfNN_ia64_choose_gp, elfNN_ia64_final_link, elfNN_ia64_finish_dynamic_sections): .. * elfxx-mips.c (mips_elf_create_procedure_table, mips_elf_check_mips16_stubs, _bfd_mips_elf_gprel16_with_gp, _bfd_mips_elf_hi16_reloc, _bfd_mips_elf_generic_reloc, mips_elf_global_got_index, mips_elf_multi_got, mips_elf_create_compact_rel_section, mips_elf_calculate_relocation, mips_elf_allocate_dynamic_relocations, mips_elf_create_dynamic_relocation, _bfd_mips_elf_fake_sections, _bfd_mips_relax_section, _bfd_mips_elf_adjust_dynamic_symbol, _bfd_mips_elf_always_size_sections, _bfd_mips_elf_size_dynamic_sections, _bfd_mips_elf_finish_dynamic_symbol, _bfd_mips_elf_finish_dynamic_sections, _bfd_mips_elf_modify_segment_map, _bfd_mips_elf_discard_info, _bfd_mips_elf_write_section, _bfd_mips_elf_set_section_contents, _bfd_elf_mips_get_relocated_section_contents, _bfd_mips_elf_final_link, _bfd_mips_elf_merge_private_bfd_data): .. * hp300hpux.c (callback): .. * hppabsd-core.c (make_bfd_asection): .. * hpux-core.c (make_bfd_asection): .. * i386linux.c (linux_link_create_dynamic_sections, bfd_i386linux_size_dynamic_sections, linux_finish_dynamic_link): .. * i386msdos.c (msdos_write_object_contents): .. * i386os9k.c (os9k_callback, os9k_write_object_contents, os9k_set_section_contents): .. * ieee.c (parse_expression, ieee_slurp_external_symbols, ieee_slurp_sections, ieee_slurp_debug, ieee_slurp_section_data, ieee_write_section_part, do_with_relocs, do_as_repeat, do_without_relocs, ieee_write_debug_part, init_for_output, ieee_set_section_contents): .. * ihex.c (ihex_scan, ihex_read_section, ihex_get_section_contents): .. * irix-core.c (do_sections, make_bfd_asection): .. * libaout.h (aout_section_merge_with_text_p): .. * libbfd.c (_bfd_generic_get_section_contents, _bfd_generic_get_section_contents_in_window): .. * linker.c (default_indirect_link_order): .. * lynx-core.c (make_bfd_asection): .. * m68klinux.c (linux_link_create_dynamic_sections, bfd_m68klinux_size_dynamic_sections, linux_finish_dynamic_link): .. * mach-o.c (bfd_mach_o_make_bfd_section, bfd_mach_o_scan_read_dylinker, bfd_mach_o_scan_read_dylib, bfd_mach_o_scan_read_thread, bfd_mach_o_scan_read_symtab, bfd_mach_o_scan_read_segment): .. * merge.c (_bfd_add_merge_section, record_section, merge_strings, _bfd_merge_sections): .. * mmo.c (mmo_find_sec_w_addr, mmo_get_spec_section, mmo_get_loc, mmo_map_set_sizes, mmo_canonicalize_symtab, mmo_internal_write_section, mmo_write_object_contents): .. * netbsd-core.c (netbsd_core_file_p): .. * nlm32-alpha.c (nlm_alpha_read_reloc, nlm_alpha_write_import, nlm_alpha_set_public_section): .. * nlm32-ppc.c (nlm_powerpc_read_reloc, nlm_powerpc_write_reloc): .. * nlm32-sparc.c (nlm_sparc_write_import): .. * nlmcode.h (add_bfd_section, nlm_swap_auxiliary_headers_in, nlm_compute_section_file_positions): .. * oasys.c (oasys_object_p, oasys_slurp_section_data, oasys_write_sections, oasys_write_data, oasys_set_section_contents): .. * opncls.c (get_debug_link_info): .. * osf-core.c (make_bfd_asection): .. * pdp11.c (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, squirt_out_relocs, final_link, aout_link_input_section): .. * peXXigen.c (_bfd_XXi_swap_sym_in, _bfd_XXi_swap_aouthdr_out, pe_print_idata, pe_print_edata, pe_print_pdata, pe_print_reloc): .. * pef.c (bfd_pef_make_bfd_section, bfd_pef_print_loader_section, bfd_pef_scan_start_address, bfd_pef_parse_symbols): .. * ppcboot.c (ppcboot_object_p, ppcboot_canonicalize_symtab): .. * ptrace-core.c (ptrace_unix_core_file_p): .. * reloc.c (bfd_perform_relocation, bfd_install_relocation, _bfd_final_link_relocate, bfd_generic_relax_section, bfd_generic_get_relocated_section_contents): .. * reloc16.c (bfd_coff_reloc16_relax_section, bfd_coff_reloc16_get_relocated_section_c): .. * riscix.c (riscix_some_aout_object_p): .. * rs6000-core.c (read_hdr, make_bfd_asection): .. * sco5-core.c (make_bfd_asection): .. * simple.c (bfd_simple_get_relocated_section_contents): .. * som.c (som_object_setup, setup_sections, som_prep_headers, som_write_fixups, som_begin_writing, bfd_section_from_som_symbol, som_set_reloc_info, som_get_section_contents, som_bfd_link_split_section): .. * sparclinux.c (linux_link_create_dynamic_sections, bfd_sparclinux_size_dynamic_sections, linux_finish_dynamic_link): .. * srec.c (srec_scan, srec_read_section, srec_get_section_contents): .. * stabs.c (_bfd_link_section_stabs, _bfd_discard_section_stabs, _bfd_write_stab_strings, _bfd_stab_section_offset): .. * sunos.c (sunos_read_dynamic_info, sunos_create_dynamic_sections, bfd_sunos_size_dynamic_sections, sunos_scan_std_relocs, sunos_scan_ext_relocs, sunos_scan_dynamic_symbol, sunos_write_dynamic_symbol, sunos_check_dynamic_reloc, sunos_finish_dynamic_link): .. * syms.c (_bfd_stab_section_find_nearest_line): .. * tekhex.c (first_phase, tekhex_set_section_contents, tekhex_write_object_contents): .. * trad-core.c (trad_unix_core_file_p): .. * versados.c (process_esd, process_otr, process_otr): .. * vms-gsd.c (_bfd_vms_slurp_gsd, _bfd_vms_write_gsd): .. * vms-misc.c (add_new_contents): .. * vms-tir.c (check_section, new_section, _bfd_vms_write_tir): .. * vms.c (vms_set_section_contents): .. * xcofflink.c (xcoff_get_section_contents, xcoff_link_add_symbols, xcoff_sweep, bfd_xcoff_size_dynamic_sections, xcoff_build_ldsyms, _bfd_xcoff_bfd_final_link, xcoff_link_input_bfd): .. * xsym.c (bfd_sym_scan): .. See above. binutils/ * objcopy.c (copy_section): Don't set _cooked_size. include/ * bfdlink.h (struct bfd_link_order): Update comment. ld/ * ldlang.c (print_output_section_statement): Don't print size before relaxation. (IGNORE_SECTION): Remove bfd arg. Update all callers. * ldexp.c (fold_name): .. See below. * ldlang.c (section_already_linked, print_output_section_statement, print_input_section, insert_pad, size_input_section, lang_check_section_addresses, lang_size_sections_1, lang_size_sections, lang_do_assignments_1, lang_set_startof, lang_one_common, lang_reset_memory_regions, lang_process, lang_abs_symbol_at_end_of, lang_do_version_exports_section): .. * ldwrite.c (build_link_order, clone_section, ds, split_sections): .. * pe-dll.c (process_def_file, generate_reloc): .. * emultempl/elf32.em (gld${EMULATION_NAME}_find_statement_assignment, gld${EMULATION_NAME}_before_allocation): .. * emultempl/mmix-elfnmmo.em (mmix_after_allocation): .. * emultempl/sh64elf.em (sh64_elf_${EMULATION_NAME}_before_allocation, sh64_elf_${EMULATION_NAME}_after_allocation): .. * emultempl/sunos.em (gld${EMULATION_NAME}_before_allocation): .. * emultempl/xtensaelf.em (ld_assign_relative_paged_dot, ld_local_file_relocations_fit, ld_xtensa_insert_page_offsets): Use "size" instead of "_raw_size" and "_cooked_size". Expand bfd_section_size macro invocations.
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dot += section->size;
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}
break;
case lang_fill_statement_enum:
dot += l->fill_statement.size;
break;
case lang_padding_statement_enum:
dot += l->padding_statement.size;
break;
default:
break;
}
}
return dot;
}
static bfd_boolean
ld_local_file_relocations_fit (lang_statement_union_type *statement,
const reloc_deps_graph *deps ATTRIBUTE_UNUSED)
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{
/* Walk over all of the dependencies that we identified and make
sure that IF the source and target are here (addr != 0):
1) target addr < source addr
2) (roundup(source + source_size, 4) - rounddown(target, 4))
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< (256K - (1 << bad align))
Need a worst-case proof.... */
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xtensa_ld_iter_stack *stack = NULL;
xtensa_ld_iter_stack **stack_p = &stack;
size_t max_align_power = 0;
size_t align_penalty = 256;
reloc_deps_e *e;
size_t i;
/* Find the worst-case alignment requirement for this set of statements. */
for (iter_stack_create (stack_p, statement);
!iter_stack_empty (stack_p);
iter_stack_next (stack_p))
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{
lang_statement_union_type *l = iter_stack_current (stack_p);
if (l->header.type == lang_input_section_enum)
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{
lang_input_section_type *input = &l->input_section;
asection *section = input->section;
if (section->alignment_power > max_align_power)
max_align_power = section->alignment_power;
}
}
/* Now check that everything fits. */
for (i = 0; i < deps->count; i++)
{
asection *sec = deps->sections[i];
const reloc_deps_section *deps_section =
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xtensa_get_section_deps (deps, sec);
if (deps_section)
{
/* We choose to walk through the successors. */
for (e = deps_section->succs; e != NULL; e = e->next)
{
if (e->src != e->tgt
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&& e->src->output_section == e->tgt->output_section
&& e->src->output_offset != 0
&& e->tgt->output_offset != 0)
{
bfd_vma l32r_addr =
bfd/ * section.c (struct sec): Rename "_cooked_size" to "size". Rename "_raw_size" to "rawsize". (STD_SECTION): Adjust comments. (bfd_set_section_size, bfd_get_section_contents): Use size. (bfd_malloc_and_get_section): New function. * bfd-in.h (bfd_section_size, bfd_get_section_size): Use size. * coff-sh.c (sh_relax_section): Alloc coff_section_data struct early. Correctly free reloc and contents memory. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Delete FIXME and fake CIE now that we can shink section size to zero. (_bfd_elf_write_section_eh_frame): Likewise.. * elf32-ppc.c (ppc_elf_relax_section): Delay reading section contents. * elf-m10300.c (mn10300_elf_final_link_relocate): Don't use _bfd_stab_section_offset. Use _bfd_elf_section_offset. * stabs.c (_bfd_stab_section_offset_): Remove unused args and unneeded indirection. * elf.c (_bfd_elf_section_offset): .. and update call. * libbfd-in.h (_bfd_stab_section_offset): Update prototype. * libbfd.h: Regenerate. * bfd-in2.h: Regenerate. Replace occurrences of "_raw_size" and "_cooked_size" in most places with "size". Set new "rawsize" for stabs, eh_frame, and SEC_MERGE sections. Use "rawsize", if non-zero, for bfd_get_section_contents calls if the section might be a stabs, eh_frame, or SEC_MERGE section. Similarly use "rawsize", if non-zero, in reloc functions to validate reloc addresses. Use new bfd_malloc_and_get_section in most places where bfd_get_section_contents was called. Expand all occurrences of bfd_section_size and bfd_get_section_size. Rename "raw_size" var in grok_prstatus and similar functions to "size". * aix386-core.c (aix386_core_file_p): .. * aix5ppc-core.c (xcoff64_core_p): .. * aout-adobe.c (aout_adobe_callback, aout_adobe_write_object_contents, aout_adobe_set_section_contents): .. * aout-target.h (callback): .. * aout-tic30.c (tic30_aout_callback, tic30_aout_final_link_relocate, MY_bfd_final_link): .. * aoutf1.h (sunos4_core_file_p): .. * aoutx.h (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, translate_from_native_sym_flags, final_link, aout_link_input_section): .. * binary.c (binary_object_p, binary_canonicalize_symtab, binary_set_section_contents): .. * bout.c (b_out_callback, b_out_write_object_contents, b_out_set_section_contents, b_out_bfd_relax_section, b_out_bfd_get_relocated_section_contents): .. * cisco-core.c (cisco_core_file_validate): .. * coff-alpha.c (alpha_ecoff_object_p, alpha_ecoff_get_relocated_section_conten, alpha_relocate_section): .. * coff-arm.c (coff_arm_relocate_section, bfd_arm_allocate_interworking_sections): .. * coff-h8300.c (h8300_reloc16_extra_cases, h8300_bfd_link_add_symbols): .. * coff-mips.c (mips_refhi_reloc, mips_gprel_reloc): .. * coff-ppc.c (coff_ppc_relocate_section, ppc_allocate_toc_section, ppc_bfd_coff_final_link): .. * coff-rs6000.c (xcoff_reloc_type_br, xcoff_ppc_relocate_section): .. * coff-sh.c (sh_relax_section, sh_relax_delete_bytes, sh_align_loads, sh_coff_get_relocated_section_contents): .. * coff64-rs6000.c (xcoff64_write_object_contents, xcoff64_reloc_type_br, xcoff64_ppc_relocate_section): .. * coffcode.h (coff_compute_section_file_positions, coff_write_object_contents): .. * coffgen.c (make_a_section_from_file, coff_write_symbols, coff_section_symbol, build_debug_section): .. * cofflink.c (coff_link_add_symbols, _bfd_coff_final_link, process_embedded_commands, _bfd_coff_link_input_bfd, _bfd_coff_write_global_sym): .. * cpu-arm.c (bfd_arm_update_notes, bfd_arm_get_mach_from_notes): .. * cpu-ns32k.c (do_ns32k_reloc, _bfd_ns32k_final_link_relocate): .. * dwarf1.c (parse_line_table, _bfd_dwarf1_find_nearest_line): .. * dwarf2.c (read_indirect_string, read_abbrevs, decode_line_info, _bfd_dwarf2_find_nearest_line): .. * ecoff.c (bfd_debug_section, ecoff_set_symbol_info, ecoff_compute_section_file_positions, _bfd_ecoff_write_object_contents, ecoff_indirect_link_order): .. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame, _bfd_elf_discard_section_eh_frame_hdr, _bfd_elf_maybe_strip_eh_frame_hdr, _bfd_elf_eh_frame_section_offset, _bfd_elf_write_section_eh_frame, _bfd_elf_write_section_eh_frame_hdr): .. * elf-hppa.h (elf_hppa_sort_unwind): .. * elf-m10200.c (mn10200_elf_relax_section, mn10200_elf_relax_delete_bytes, mn10200_elf_get_relocated_section_contents): .. * elf-m10300.c (_bfd_mn10300_elf_create_got_section, mn10300_elf_check_relocs, mn10300_elf_relax_section, mn10300_elf_relax_delete_bytes, mn10300_elf_get_relocated_section_contents, _bfd_mn10300_elf_adjust_dynamic_symbol, _bfd_mn10300_elf_discard_copies, _bfd_mn10300_elf_size_dynamic_sections, _bfd_mn10300_elf_finish_dynamic_sections): .. * elf.c (_bfd_elf_print_private_bfd_data, bfd_elf_get_bfd_needed_list, _bfd_elf_make_section_from_phdr, elf_fake_sections, bfd_elf_set_group_contents, map_sections_to_segments, elf_sort_sections, assign_file_positions_for_segments, SECTION_SIZE, copy_private_bfd_data, _bfd_elf_get_dynamic_reloc_upper_bound, _bfd_elf_canonicalize_dynamic_reloc, elfcore_maybe_make_sect, _bfd_elfcore_make_pseudosection, elfcore_grok_prstatus, elfcore_grok_lwpstatus, elfcore_grok_win32pstatus, elfcore_grok_note, elfcore_grok_nto_status, elfcore_grok_nto_gregs, _bfd_elf_rel_local_sym, _bfd_elf_get_synthetic_symtab): .. * elf32-arm.h (bfd_elf32_arm_allocate_interworking_sect, bfd_elf32_arm_process_before_allocation, elf32_arm_adjust_dynamic_symbol, allocate_dynrelocs, elf32_arm_size_dynamic_sections, elf32_arm_finish_dynamic_sections, elf32_arm_write_section): .. * elf32-cris.c (cris_elf_grok_prstatus, elf_cris_finish_dynamic_sections, cris_elf_gc_sweep_hook, elf_cris_adjust_gotplt_to_got, elf_cris_adjust_dynamic_symbol, cris_elf_check_relocs, elf_cris_size_dynamic_sections, elf_cris_discard_excess_dso_dynamics, elf_cris_discard_excess_program_dynamics): .. * elf32-d30v.c (bfd_elf_d30v_reloc, bfd_elf_d30v_reloc_21): .. * elf32-dlx.c (_bfd_dlx_elf_hi16_reloc): .. * elf32-frv.c (_frvfdpic_add_dyn_reloc, _frvfdpic_add_rofixup, _frv_create_got_section, _frvfdpic_assign_plt_entries, elf32_frvfdpic_size_dynamic_sections, elf32_frvfdpic_modify_segment_map, elf32_frvfdpic_finish_dynamic_sections): .. * elf32-h8300.c (elf32_h8_relax_section, elf32_h8_relax_delete_bytes, elf32_h8_get_relocated_section_contents): .. * elf32-hppa.c (hppa_build_one_stub, hppa_size_one_stub, elf32_hppa_adjust_dynamic_symbol, allocate_plt_static, allocate_dynrelocs, elf32_hppa_size_dynamic_sections, group_sections, elf32_hppa_size_stubs, elf32_hppa_set_gp, elf32_hppa_build_stubs, elf32_hppa_finish_dynamic_sections): .. * elf32-i370.c (i370_elf_adjust_dynamic_symbol, i370_elf_size_dynamic_sections, i370_elf_check_relocs, i370_elf_finish_dynamic_sections): .. * elf32-i386.c (elf_i386_grok_prstatus, elf_i386_adjust_dynamic_symbol, allocate_dynrelocs, elf_i386_size_dynamic_sections, elf_i386_relocate_section, elf_i386_finish_dynamic_sections): .. * elf32-i860.c (i860_howto_pc26_reloc, i860_howto_pc16_reloc, i860_howto_highadj_reloc, i860_howto_splitn_reloc): .. * elf32-ip2k.c (ip2k_is_switch_table_128, ip2k_relax_switch_table_128, ip2k_is_switch_table_256, ip2k_relax_switch_table_256, ip2k_elf_relax_section, adjust_all_relocations, ip2k_elf_relax_delete_bytes): .. * elf32-m32r.c (m32r_elf_do_10_pcrel_reloc, m32r_elf_hi16_reloc, m32r_elf_generic_reloc, m32r_elf_adjust_dynamic_symbol, allocate_dynrelocs, m32r_elf_size_dynamic_sections, m32r_elf_relocate_section, m32r_elf_finish_dynamic_sections, m32r_elf_relax_section, m32r_elf_relax_delete_bytes, m32r_elf_get_relocated_section_contents): .. * elf32-m68hc11.c (m68hc11_elf_build_one_stub, m68hc11_elf_size_one_stub, m68hc11_elf_relax_section, m68hc11_elf_relax_delete_bytes): .. * elf32-m68hc12.c (m68hc12_elf_build_one_stub, m68hc12_elf_size_one_stub): .. * elf32-m68hc1x.c (elf32_m68hc11_size_stubs, elf32_m68hc11_build_stubs, m68hc11_elf_special_reloc): .. * elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_gc_sweep_hook, elf_m68k_adjust_dynamic_symbol, elf_m68k_size_dynamic_sections, elf_m68k_discard_copies, elf_m68k_finish_dynamic_sections): .. * elf32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elf32-or32.c (or32_elf_consth_reloc): .. * elf32-ppc.c (ppc_elf_relax_section, ppc_elf_addr16_ha_reloc, elf_create_pointer_linker_section, ppc_elf_create_linker_section, ppc_elf_additional_program_headers, ppc_elf_adjust_dynamic_symbol, allocate_dynrelocs, ppc_elf_size_dynamic_sections, ppc_elf_finish_dynamic_sections, ppc_elf_grok_prstatus, ppc_elf_final_write_processing): .. * elf32-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections, elf_s390_grok_prstatus): .. * elf32-sh.c (sh_elf_reloc_loop, sh_elf_relax_section, sh_elf_relax_delete_bytes, sh_elf_align_loads, sh_elf_adjust_dynamic_symbol, allocate_dynrelocs, sh_elf_size_dynamic_sections, sh_elf_get_relocated_section_contents, sh_elf_finish_dynamic_sections, elf32_shlin_grok_prstatus): .. * elf32-sh64-com.c (sh64_address_in_cranges, sh64_get_contents_type): .. * elf32-sh64.c (sh64_find_section_for_address, sh64_elf_final_write_processing): .. * elf32-sparc.c (sparc_elf_wdisp16_reloc, sparc_elf_hix22_reloc, sparc_elf_lox10_reloc, elf32_sparc_adjust_dynamic_symbol, allocate_dynrelocs, elf32_sparc_size_dynamic_sections, elf32_sparc_relocate_section, elf32_sparc_finish_dynamic_sections): .. * elf32-v850.c (v850_elf_reloc, v850_elf_relax_section): .. * elf32-vax.c (elf_vax_check_relocs, elf_vax_adjust_dynamic_symbol, elf_vax_size_dynamic_sections, elf_vax_discard_copies, elf_vax_instantiate_got_entries, elf_vax_relocate_section, elf_vax_finish_dynamic_sections): .. * elf32-xstormy16.c (xstormy16_elf_24_reloc, xstormy16_elf_check_relocs, xstormy16_relax_plt_check, xstormy16_elf_relax_section, xstormy16_elf_always_size_sections, xstormy16_elf_finish_dynamic_sections): .. * elf32-xtensa.c (xtensa_read_table_entries, elf_xtensa_allocate_got_size, elf_xtensa_allocate_local_got_size, elf_xtensa_size_dynamic_sections, elf_xtensa_do_reloc, bfd_elf_xtensa_reloc, elf_xtensa_relocate_section, elf_xtensa_combine_prop_entries, elf_xtensa_finish_dynamic_sections, elf_xtensa_discard_info_for_section, elf_xtensa_grok_prstatus, get_relocation_opcode, retrieve_contents, find_relaxable_sections, collect_source_relocs, is_resolvable_asm_expansion, remove_literals, relax_section, shrink_dynamic_reloc_sections, relax_property_section, xtensa_callback_required_dependence): .. * elf64-alpha.c (elf64_alpha_reloc_gpdisp, elf64_alpha_relax_section, elf64_alpha_check_relocs, elf64_alpha_adjust_dynamic_symbol, elf64_alpha_calc_got_offsets_for_symbol, elf64_alpha_calc_got_offsets, elf64_alpha_size_plt_section, elf64_alpha_size_plt_section_1, elf64_alpha_always_size_sections, elf64_alpha_calc_dynrel_sizes, elf64_alpha_size_rela_got_section, elf64_alpha_size_rela_got_1, elf64_alpha_size_dynamic_sections, elf64_alpha_emit_dynrel, elf64_alpha_finish_dynamic_sections, elf64_alpha_final_link): .. * elf64-hppa.c (allocate_dynrel_entries, elf64_hppa_size_dynamic_sections, elf64_hppa_finish_dynamic_sections): .. * elf64-mips.c (mips_elf64_gprel32_reloc, mips16_gprel_reloc, mips_elf64_canonicalize_dynamic_reloc, mips_elf64_slurp_reloc_table, elf64_mips_grok_prstatus): .. * elf64-mmix.c (mmix_elf_perform_relocation, mmix_elf_reloc, mmix_elf_relocate_section, mmix_elf_final_link, mmix_set_relaxable_size, _bfd_mmix_after_linker_allocation, mmix_elf_relax_section, mmix_elf_get_section_contents): .. * elf64-ppc.c (ppc64_elf_object_p, ppc64_elf_grok_prstatus, ppc64_elf_check_relocs, ppc64_elf_func_desc_adjust, ppc64_elf_adjust_dynamic_symbol, ppc64_elf_edit_opd, allocate_dynrelocs, ppc64_elf_size_dynamic_sections, ppc_build_one_stub, ppc_size_one_stub, ppc64_elf_next_toc_section, toc_adjusting_stub_needed, group_sections, ppc64_elf_size_stubs, ppc64_elf_build_stubs, ppc64_elf_relocate_section, ppc64_elf_finish_dynamic_sections): .. * elf64-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections): .. * elf64-sh64.c (sh_elf64_get_relocated_section_contents, sh_elf64_check_relocs, sh64_elf64_adjust_dynamic_symbol, sh64_elf64_discard_copies, sh64_elf64_size_dynamic_sections, sh64_elf64_finish_dynamic_sections): .. * elf64-sparc.c (sparc64_elf_slurp_reloc_table, init_insn_reloc, sparc64_elf_check_relocs, sparc64_elf_adjust_dynamic_symbol, sparc64_elf_size_dynamic_sections, sparc64_elf_relocate_section, sparc64_elf_finish_dynamic_symbol, sparc64_elf_finish_dynamic_sections): .. * elf64-x86-64.c (elf64_x86_64_grok_prstatus, elf64_x86_64_adjust_dynamic_symbol, allocate_dynrelocs, elf64_x86_64_size_dynamic_sections, elf64_x86_64_relocate_section, elf64_x86_64_finish_dynamic_sections): .. * elfarm-nabi.c (elf32_arm_nabi_grok_prstatus): .. * elfcode.h (elf_slurp_reloc_table): .. * elflink.c (_bfd_elf_create_got_section, elf_add_dt_needed_tag, elf_finalize_dynstr, elf_link_add_object_symbols, bfd_elf_size_dynamic_sections, elf_link_sort_relocs, elf_link_input_bfd, bfd_elf_final_link, bfd_elf_discard_info): .. * elfn32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elfxx-ia64.c (elfNN_ia64_relax_section, allocate_dynrel_entries, elfNN_ia64_size_dynamic_sections, elfNN_ia64_install_dyn_reloc, elfNN_ia64_choose_gp, elfNN_ia64_final_link, elfNN_ia64_finish_dynamic_sections): .. * elfxx-mips.c (mips_elf_create_procedure_table, mips_elf_check_mips16_stubs, _bfd_mips_elf_gprel16_with_gp, _bfd_mips_elf_hi16_reloc, _bfd_mips_elf_generic_reloc, mips_elf_global_got_index, mips_elf_multi_got, mips_elf_create_compact_rel_section, mips_elf_calculate_relocation, mips_elf_allocate_dynamic_relocations, mips_elf_create_dynamic_relocation, _bfd_mips_elf_fake_sections, _bfd_mips_relax_section, _bfd_mips_elf_adjust_dynamic_symbol, _bfd_mips_elf_always_size_sections, _bfd_mips_elf_size_dynamic_sections, _bfd_mips_elf_finish_dynamic_symbol, _bfd_mips_elf_finish_dynamic_sections, _bfd_mips_elf_modify_segment_map, _bfd_mips_elf_discard_info, _bfd_mips_elf_write_section, _bfd_mips_elf_set_section_contents, _bfd_elf_mips_get_relocated_section_contents, _bfd_mips_elf_final_link, _bfd_mips_elf_merge_private_bfd_data): .. * hp300hpux.c (callback): .. * hppabsd-core.c (make_bfd_asection): .. * hpux-core.c (make_bfd_asection): .. * i386linux.c (linux_link_create_dynamic_sections, bfd_i386linux_size_dynamic_sections, linux_finish_dynamic_link): .. * i386msdos.c (msdos_write_object_contents): .. * i386os9k.c (os9k_callback, os9k_write_object_contents, os9k_set_section_contents): .. * ieee.c (parse_expression, ieee_slurp_external_symbols, ieee_slurp_sections, ieee_slurp_debug, ieee_slurp_section_data, ieee_write_section_part, do_with_relocs, do_as_repeat, do_without_relocs, ieee_write_debug_part, init_for_output, ieee_set_section_contents): .. * ihex.c (ihex_scan, ihex_read_section, ihex_get_section_contents): .. * irix-core.c (do_sections, make_bfd_asection): .. * libaout.h (aout_section_merge_with_text_p): .. * libbfd.c (_bfd_generic_get_section_contents, _bfd_generic_get_section_contents_in_window): .. * linker.c (default_indirect_link_order): .. * lynx-core.c (make_bfd_asection): .. * m68klinux.c (linux_link_create_dynamic_sections, bfd_m68klinux_size_dynamic_sections, linux_finish_dynamic_link): .. * mach-o.c (bfd_mach_o_make_bfd_section, bfd_mach_o_scan_read_dylinker, bfd_mach_o_scan_read_dylib, bfd_mach_o_scan_read_thread, bfd_mach_o_scan_read_symtab, bfd_mach_o_scan_read_segment): .. * merge.c (_bfd_add_merge_section, record_section, merge_strings, _bfd_merge_sections): .. * mmo.c (mmo_find_sec_w_addr, mmo_get_spec_section, mmo_get_loc, mmo_map_set_sizes, mmo_canonicalize_symtab, mmo_internal_write_section, mmo_write_object_contents): .. * netbsd-core.c (netbsd_core_file_p): .. * nlm32-alpha.c (nlm_alpha_read_reloc, nlm_alpha_write_import, nlm_alpha_set_public_section): .. * nlm32-ppc.c (nlm_powerpc_read_reloc, nlm_powerpc_write_reloc): .. * nlm32-sparc.c (nlm_sparc_write_import): .. * nlmcode.h (add_bfd_section, nlm_swap_auxiliary_headers_in, nlm_compute_section_file_positions): .. * oasys.c (oasys_object_p, oasys_slurp_section_data, oasys_write_sections, oasys_write_data, oasys_set_section_contents): .. * opncls.c (get_debug_link_info): .. * osf-core.c (make_bfd_asection): .. * pdp11.c (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, squirt_out_relocs, final_link, aout_link_input_section): .. * peXXigen.c (_bfd_XXi_swap_sym_in, _bfd_XXi_swap_aouthdr_out, pe_print_idata, pe_print_edata, pe_print_pdata, pe_print_reloc): .. * pef.c (bfd_pef_make_bfd_section, bfd_pef_print_loader_section, bfd_pef_scan_start_address, bfd_pef_parse_symbols): .. * ppcboot.c (ppcboot_object_p, ppcboot_canonicalize_symtab): .. * ptrace-core.c (ptrace_unix_core_file_p): .. * reloc.c (bfd_perform_relocation, bfd_install_relocation, _bfd_final_link_relocate, bfd_generic_relax_section, bfd_generic_get_relocated_section_contents): .. * reloc16.c (bfd_coff_reloc16_relax_section, bfd_coff_reloc16_get_relocated_section_c): .. * riscix.c (riscix_some_aout_object_p): .. * rs6000-core.c (read_hdr, make_bfd_asection): .. * sco5-core.c (make_bfd_asection): .. * simple.c (bfd_simple_get_relocated_section_contents): .. * som.c (som_object_setup, setup_sections, som_prep_headers, som_write_fixups, som_begin_writing, bfd_section_from_som_symbol, som_set_reloc_info, som_get_section_contents, som_bfd_link_split_section): .. * sparclinux.c (linux_link_create_dynamic_sections, bfd_sparclinux_size_dynamic_sections, linux_finish_dynamic_link): .. * srec.c (srec_scan, srec_read_section, srec_get_section_contents): .. * stabs.c (_bfd_link_section_stabs, _bfd_discard_section_stabs, _bfd_write_stab_strings, _bfd_stab_section_offset): .. * sunos.c (sunos_read_dynamic_info, sunos_create_dynamic_sections, bfd_sunos_size_dynamic_sections, sunos_scan_std_relocs, sunos_scan_ext_relocs, sunos_scan_dynamic_symbol, sunos_write_dynamic_symbol, sunos_check_dynamic_reloc, sunos_finish_dynamic_link): .. * syms.c (_bfd_stab_section_find_nearest_line): .. * tekhex.c (first_phase, tekhex_set_section_contents, tekhex_write_object_contents): .. * trad-core.c (trad_unix_core_file_p): .. * versados.c (process_esd, process_otr, process_otr): .. * vms-gsd.c (_bfd_vms_slurp_gsd, _bfd_vms_write_gsd): .. * vms-misc.c (add_new_contents): .. * vms-tir.c (check_section, new_section, _bfd_vms_write_tir): .. * vms.c (vms_set_section_contents): .. * xcofflink.c (xcoff_get_section_contents, xcoff_link_add_symbols, xcoff_sweep, bfd_xcoff_size_dynamic_sections, xcoff_build_ldsyms, _bfd_xcoff_bfd_final_link, xcoff_link_input_bfd): .. * xsym.c (bfd_sym_scan): .. See above. binutils/ * objcopy.c (copy_section): Don't set _cooked_size. include/ * bfdlink.h (struct bfd_link_order): Update comment. ld/ * ldlang.c (print_output_section_statement): Don't print size before relaxation. (IGNORE_SECTION): Remove bfd arg. Update all callers. * ldexp.c (fold_name): .. See below. * ldlang.c (section_already_linked, print_output_section_statement, print_input_section, insert_pad, size_input_section, lang_check_section_addresses, lang_size_sections_1, lang_size_sections, lang_do_assignments_1, lang_set_startof, lang_one_common, lang_reset_memory_regions, lang_process, lang_abs_symbol_at_end_of, lang_do_version_exports_section): .. * ldwrite.c (build_link_order, clone_section, ds, split_sections): .. * pe-dll.c (process_def_file, generate_reloc): .. * emultempl/elf32.em (gld${EMULATION_NAME}_find_statement_assignment, gld${EMULATION_NAME}_before_allocation): .. * emultempl/mmix-elfnmmo.em (mmix_after_allocation): .. * emultempl/sh64elf.em (sh64_elf_${EMULATION_NAME}_before_allocation, sh64_elf_${EMULATION_NAME}_after_allocation): .. * emultempl/sunos.em (gld${EMULATION_NAME}_before_allocation): .. * emultempl/xtensaelf.em (ld_assign_relative_paged_dot, ld_local_file_relocations_fit, ld_xtensa_insert_page_offsets): Use "size" instead of "_raw_size" and "_cooked_size". Expand bfd_section_size macro invocations.
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align_power (e->src->output_offset + e->src->size, 2);
bfd_vma target_addr = e->tgt->output_offset & ~3;
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if (l32r_addr < target_addr)
{
fprintf (stderr, "Warning: "
"l32r target section before l32r\n");
return FALSE;
}
if (l32r_addr - target_addr > 256 * 1024 - align_penalty)
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return FALSE;
}
}
}
}
return TRUE;
}
static bfd_vma
ld_xtensa_insert_page_offsets (bfd_vma dot,
lang_statement_union_type *s,
reloc_deps_graph *deps,
bfd_boolean lit_align)
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{
xtensa_ld_iter_stack *stack = NULL;
xtensa_ld_iter_stack **stack_p = &stack;
bfd_boolean first_section = FALSE;
bfd_boolean in_literals = FALSE;
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if (!lit_align)
return FALSE;
for (iter_stack_create (stack_p, s);
!iter_stack_empty (stack_p);
iter_stack_next (stack_p))
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{
lang_statement_union_type *l = iter_stack_current (stack_p);
switch (l->header.type)
{
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case lang_input_section_enum:
{
asection *section = l->input_section.section;
bfd_boolean do_xtensa_alignment = FALSE;
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if (lit_align)
{
bfd/ * section.c (struct sec): Rename "_cooked_size" to "size". Rename "_raw_size" to "rawsize". (STD_SECTION): Adjust comments. (bfd_set_section_size, bfd_get_section_contents): Use size. (bfd_malloc_and_get_section): New function. * bfd-in.h (bfd_section_size, bfd_get_section_size): Use size. * coff-sh.c (sh_relax_section): Alloc coff_section_data struct early. Correctly free reloc and contents memory. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Delete FIXME and fake CIE now that we can shink section size to zero. (_bfd_elf_write_section_eh_frame): Likewise.. * elf32-ppc.c (ppc_elf_relax_section): Delay reading section contents. * elf-m10300.c (mn10300_elf_final_link_relocate): Don't use _bfd_stab_section_offset. Use _bfd_elf_section_offset. * stabs.c (_bfd_stab_section_offset_): Remove unused args and unneeded indirection. * elf.c (_bfd_elf_section_offset): .. and update call. * libbfd-in.h (_bfd_stab_section_offset): Update prototype. * libbfd.h: Regenerate. * bfd-in2.h: Regenerate. Replace occurrences of "_raw_size" and "_cooked_size" in most places with "size". Set new "rawsize" for stabs, eh_frame, and SEC_MERGE sections. Use "rawsize", if non-zero, for bfd_get_section_contents calls if the section might be a stabs, eh_frame, or SEC_MERGE section. Similarly use "rawsize", if non-zero, in reloc functions to validate reloc addresses. Use new bfd_malloc_and_get_section in most places where bfd_get_section_contents was called. Expand all occurrences of bfd_section_size and bfd_get_section_size. Rename "raw_size" var in grok_prstatus and similar functions to "size". * aix386-core.c (aix386_core_file_p): .. * aix5ppc-core.c (xcoff64_core_p): .. * aout-adobe.c (aout_adobe_callback, aout_adobe_write_object_contents, aout_adobe_set_section_contents): .. * aout-target.h (callback): .. * aout-tic30.c (tic30_aout_callback, tic30_aout_final_link_relocate, MY_bfd_final_link): .. * aoutf1.h (sunos4_core_file_p): .. * aoutx.h (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, translate_from_native_sym_flags, final_link, aout_link_input_section): .. * binary.c (binary_object_p, binary_canonicalize_symtab, binary_set_section_contents): .. * bout.c (b_out_callback, b_out_write_object_contents, b_out_set_section_contents, b_out_bfd_relax_section, b_out_bfd_get_relocated_section_contents): .. * cisco-core.c (cisco_core_file_validate): .. * coff-alpha.c (alpha_ecoff_object_p, alpha_ecoff_get_relocated_section_conten, alpha_relocate_section): .. * coff-arm.c (coff_arm_relocate_section, bfd_arm_allocate_interworking_sections): .. * coff-h8300.c (h8300_reloc16_extra_cases, h8300_bfd_link_add_symbols): .. * coff-mips.c (mips_refhi_reloc, mips_gprel_reloc): .. * coff-ppc.c (coff_ppc_relocate_section, ppc_allocate_toc_section, ppc_bfd_coff_final_link): .. * coff-rs6000.c (xcoff_reloc_type_br, xcoff_ppc_relocate_section): .. * coff-sh.c (sh_relax_section, sh_relax_delete_bytes, sh_align_loads, sh_coff_get_relocated_section_contents): .. * coff64-rs6000.c (xcoff64_write_object_contents, xcoff64_reloc_type_br, xcoff64_ppc_relocate_section): .. * coffcode.h (coff_compute_section_file_positions, coff_write_object_contents): .. * coffgen.c (make_a_section_from_file, coff_write_symbols, coff_section_symbol, build_debug_section): .. * cofflink.c (coff_link_add_symbols, _bfd_coff_final_link, process_embedded_commands, _bfd_coff_link_input_bfd, _bfd_coff_write_global_sym): .. * cpu-arm.c (bfd_arm_update_notes, bfd_arm_get_mach_from_notes): .. * cpu-ns32k.c (do_ns32k_reloc, _bfd_ns32k_final_link_relocate): .. * dwarf1.c (parse_line_table, _bfd_dwarf1_find_nearest_line): .. * dwarf2.c (read_indirect_string, read_abbrevs, decode_line_info, _bfd_dwarf2_find_nearest_line): .. * ecoff.c (bfd_debug_section, ecoff_set_symbol_info, ecoff_compute_section_file_positions, _bfd_ecoff_write_object_contents, ecoff_indirect_link_order): .. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame, _bfd_elf_discard_section_eh_frame_hdr, _bfd_elf_maybe_strip_eh_frame_hdr, _bfd_elf_eh_frame_section_offset, _bfd_elf_write_section_eh_frame, _bfd_elf_write_section_eh_frame_hdr): .. * elf-hppa.h (elf_hppa_sort_unwind): .. * elf-m10200.c (mn10200_elf_relax_section, mn10200_elf_relax_delete_bytes, mn10200_elf_get_relocated_section_contents): .. * elf-m10300.c (_bfd_mn10300_elf_create_got_section, mn10300_elf_check_relocs, mn10300_elf_relax_section, mn10300_elf_relax_delete_bytes, mn10300_elf_get_relocated_section_contents, _bfd_mn10300_elf_adjust_dynamic_symbol, _bfd_mn10300_elf_discard_copies, _bfd_mn10300_elf_size_dynamic_sections, _bfd_mn10300_elf_finish_dynamic_sections): .. * elf.c (_bfd_elf_print_private_bfd_data, bfd_elf_get_bfd_needed_list, _bfd_elf_make_section_from_phdr, elf_fake_sections, bfd_elf_set_group_contents, map_sections_to_segments, elf_sort_sections, assign_file_positions_for_segments, SECTION_SIZE, copy_private_bfd_data, _bfd_elf_get_dynamic_reloc_upper_bound, _bfd_elf_canonicalize_dynamic_reloc, elfcore_maybe_make_sect, _bfd_elfcore_make_pseudosection, elfcore_grok_prstatus, elfcore_grok_lwpstatus, elfcore_grok_win32pstatus, elfcore_grok_note, elfcore_grok_nto_status, elfcore_grok_nto_gregs, _bfd_elf_rel_local_sym, _bfd_elf_get_synthetic_symtab): .. * elf32-arm.h (bfd_elf32_arm_allocate_interworking_sect, bfd_elf32_arm_process_before_allocation, elf32_arm_adjust_dynamic_symbol, allocate_dynrelocs, elf32_arm_size_dynamic_sections, elf32_arm_finish_dynamic_sections, elf32_arm_write_section): .. * elf32-cris.c (cris_elf_grok_prstatus, elf_cris_finish_dynamic_sections, cris_elf_gc_sweep_hook, elf_cris_adjust_gotplt_to_got, elf_cris_adjust_dynamic_symbol, cris_elf_check_relocs, elf_cris_size_dynamic_sections, elf_cris_discard_excess_dso_dynamics, elf_cris_discard_excess_program_dynamics): .. * elf32-d30v.c (bfd_elf_d30v_reloc, bfd_elf_d30v_reloc_21): .. * elf32-dlx.c (_bfd_dlx_elf_hi16_reloc): .. * elf32-frv.c (_frvfdpic_add_dyn_reloc, _frvfdpic_add_rofixup, _frv_create_got_section, _frvfdpic_assign_plt_entries, elf32_frvfdpic_size_dynamic_sections, elf32_frvfdpic_modify_segment_map, elf32_frvfdpic_finish_dynamic_sections): .. * elf32-h8300.c (elf32_h8_relax_section, elf32_h8_relax_delete_bytes, elf32_h8_get_relocated_section_contents): .. * elf32-hppa.c (hppa_build_one_stub, hppa_size_one_stub, elf32_hppa_adjust_dynamic_symbol, allocate_plt_static, allocate_dynrelocs, elf32_hppa_size_dynamic_sections, group_sections, elf32_hppa_size_stubs, elf32_hppa_set_gp, elf32_hppa_build_stubs, elf32_hppa_finish_dynamic_sections): .. * elf32-i370.c (i370_elf_adjust_dynamic_symbol, i370_elf_size_dynamic_sections, i370_elf_check_relocs, i370_elf_finish_dynamic_sections): .. * elf32-i386.c (elf_i386_grok_prstatus, elf_i386_adjust_dynamic_symbol, allocate_dynrelocs, elf_i386_size_dynamic_sections, elf_i386_relocate_section, elf_i386_finish_dynamic_sections): .. * elf32-i860.c (i860_howto_pc26_reloc, i860_howto_pc16_reloc, i860_howto_highadj_reloc, i860_howto_splitn_reloc): .. * elf32-ip2k.c (ip2k_is_switch_table_128, ip2k_relax_switch_table_128, ip2k_is_switch_table_256, ip2k_relax_switch_table_256, ip2k_elf_relax_section, adjust_all_relocations, ip2k_elf_relax_delete_bytes): .. * elf32-m32r.c (m32r_elf_do_10_pcrel_reloc, m32r_elf_hi16_reloc, m32r_elf_generic_reloc, m32r_elf_adjust_dynamic_symbol, allocate_dynrelocs, m32r_elf_size_dynamic_sections, m32r_elf_relocate_section, m32r_elf_finish_dynamic_sections, m32r_elf_relax_section, m32r_elf_relax_delete_bytes, m32r_elf_get_relocated_section_contents): .. * elf32-m68hc11.c (m68hc11_elf_build_one_stub, m68hc11_elf_size_one_stub, m68hc11_elf_relax_section, m68hc11_elf_relax_delete_bytes): .. * elf32-m68hc12.c (m68hc12_elf_build_one_stub, m68hc12_elf_size_one_stub): .. * elf32-m68hc1x.c (elf32_m68hc11_size_stubs, elf32_m68hc11_build_stubs, m68hc11_elf_special_reloc): .. * elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_gc_sweep_hook, elf_m68k_adjust_dynamic_symbol, elf_m68k_size_dynamic_sections, elf_m68k_discard_copies, elf_m68k_finish_dynamic_sections): .. * elf32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elf32-or32.c (or32_elf_consth_reloc): .. * elf32-ppc.c (ppc_elf_relax_section, ppc_elf_addr16_ha_reloc, elf_create_pointer_linker_section, ppc_elf_create_linker_section, ppc_elf_additional_program_headers, ppc_elf_adjust_dynamic_symbol, allocate_dynrelocs, ppc_elf_size_dynamic_sections, ppc_elf_finish_dynamic_sections, ppc_elf_grok_prstatus, ppc_elf_final_write_processing): .. * elf32-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections, elf_s390_grok_prstatus): .. * elf32-sh.c (sh_elf_reloc_loop, sh_elf_relax_section, sh_elf_relax_delete_bytes, sh_elf_align_loads, sh_elf_adjust_dynamic_symbol, allocate_dynrelocs, sh_elf_size_dynamic_sections, sh_elf_get_relocated_section_contents, sh_elf_finish_dynamic_sections, elf32_shlin_grok_prstatus): .. * elf32-sh64-com.c (sh64_address_in_cranges, sh64_get_contents_type): .. * elf32-sh64.c (sh64_find_section_for_address, sh64_elf_final_write_processing): .. * elf32-sparc.c (sparc_elf_wdisp16_reloc, sparc_elf_hix22_reloc, sparc_elf_lox10_reloc, elf32_sparc_adjust_dynamic_symbol, allocate_dynrelocs, elf32_sparc_size_dynamic_sections, elf32_sparc_relocate_section, elf32_sparc_finish_dynamic_sections): .. * elf32-v850.c (v850_elf_reloc, v850_elf_relax_section): .. * elf32-vax.c (elf_vax_check_relocs, elf_vax_adjust_dynamic_symbol, elf_vax_size_dynamic_sections, elf_vax_discard_copies, elf_vax_instantiate_got_entries, elf_vax_relocate_section, elf_vax_finish_dynamic_sections): .. * elf32-xstormy16.c (xstormy16_elf_24_reloc, xstormy16_elf_check_relocs, xstormy16_relax_plt_check, xstormy16_elf_relax_section, xstormy16_elf_always_size_sections, xstormy16_elf_finish_dynamic_sections): .. * elf32-xtensa.c (xtensa_read_table_entries, elf_xtensa_allocate_got_size, elf_xtensa_allocate_local_got_size, elf_xtensa_size_dynamic_sections, elf_xtensa_do_reloc, bfd_elf_xtensa_reloc, elf_xtensa_relocate_section, elf_xtensa_combine_prop_entries, elf_xtensa_finish_dynamic_sections, elf_xtensa_discard_info_for_section, elf_xtensa_grok_prstatus, get_relocation_opcode, retrieve_contents, find_relaxable_sections, collect_source_relocs, is_resolvable_asm_expansion, remove_literals, relax_section, shrink_dynamic_reloc_sections, relax_property_section, xtensa_callback_required_dependence): .. * elf64-alpha.c (elf64_alpha_reloc_gpdisp, elf64_alpha_relax_section, elf64_alpha_check_relocs, elf64_alpha_adjust_dynamic_symbol, elf64_alpha_calc_got_offsets_for_symbol, elf64_alpha_calc_got_offsets, elf64_alpha_size_plt_section, elf64_alpha_size_plt_section_1, elf64_alpha_always_size_sections, elf64_alpha_calc_dynrel_sizes, elf64_alpha_size_rela_got_section, elf64_alpha_size_rela_got_1, elf64_alpha_size_dynamic_sections, elf64_alpha_emit_dynrel, elf64_alpha_finish_dynamic_sections, elf64_alpha_final_link): .. * elf64-hppa.c (allocate_dynrel_entries, elf64_hppa_size_dynamic_sections, elf64_hppa_finish_dynamic_sections): .. * elf64-mips.c (mips_elf64_gprel32_reloc, mips16_gprel_reloc, mips_elf64_canonicalize_dynamic_reloc, mips_elf64_slurp_reloc_table, elf64_mips_grok_prstatus): .. * elf64-mmix.c (mmix_elf_perform_relocation, mmix_elf_reloc, mmix_elf_relocate_section, mmix_elf_final_link, mmix_set_relaxable_size, _bfd_mmix_after_linker_allocation, mmix_elf_relax_section, mmix_elf_get_section_contents): .. * elf64-ppc.c (ppc64_elf_object_p, ppc64_elf_grok_prstatus, ppc64_elf_check_relocs, ppc64_elf_func_desc_adjust, ppc64_elf_adjust_dynamic_symbol, ppc64_elf_edit_opd, allocate_dynrelocs, ppc64_elf_size_dynamic_sections, ppc_build_one_stub, ppc_size_one_stub, ppc64_elf_next_toc_section, toc_adjusting_stub_needed, group_sections, ppc64_elf_size_stubs, ppc64_elf_build_stubs, ppc64_elf_relocate_section, ppc64_elf_finish_dynamic_sections): .. * elf64-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections): .. * elf64-sh64.c (sh_elf64_get_relocated_section_contents, sh_elf64_check_relocs, sh64_elf64_adjust_dynamic_symbol, sh64_elf64_discard_copies, sh64_elf64_size_dynamic_sections, sh64_elf64_finish_dynamic_sections): .. * elf64-sparc.c (sparc64_elf_slurp_reloc_table, init_insn_reloc, sparc64_elf_check_relocs, sparc64_elf_adjust_dynamic_symbol, sparc64_elf_size_dynamic_sections, sparc64_elf_relocate_section, sparc64_elf_finish_dynamic_symbol, sparc64_elf_finish_dynamic_sections): .. * elf64-x86-64.c (elf64_x86_64_grok_prstatus, elf64_x86_64_adjust_dynamic_symbol, allocate_dynrelocs, elf64_x86_64_size_dynamic_sections, elf64_x86_64_relocate_section, elf64_x86_64_finish_dynamic_sections): .. * elfarm-nabi.c (elf32_arm_nabi_grok_prstatus): .. * elfcode.h (elf_slurp_reloc_table): .. * elflink.c (_bfd_elf_create_got_section, elf_add_dt_needed_tag, elf_finalize_dynstr, elf_link_add_object_symbols, bfd_elf_size_dynamic_sections, elf_link_sort_relocs, elf_link_input_bfd, bfd_elf_final_link, bfd_elf_discard_info): .. * elfn32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elfxx-ia64.c (elfNN_ia64_relax_section, allocate_dynrel_entries, elfNN_ia64_size_dynamic_sections, elfNN_ia64_install_dyn_reloc, elfNN_ia64_choose_gp, elfNN_ia64_final_link, elfNN_ia64_finish_dynamic_sections): .. * elfxx-mips.c (mips_elf_create_procedure_table, mips_elf_check_mips16_stubs, _bfd_mips_elf_gprel16_with_gp, _bfd_mips_elf_hi16_reloc, _bfd_mips_elf_generic_reloc, mips_elf_global_got_index, mips_elf_multi_got, mips_elf_create_compact_rel_section, mips_elf_calculate_relocation, mips_elf_allocate_dynamic_relocations, mips_elf_create_dynamic_relocation, _bfd_mips_elf_fake_sections, _bfd_mips_relax_section, _bfd_mips_elf_adjust_dynamic_symbol, _bfd_mips_elf_always_size_sections, _bfd_mips_elf_size_dynamic_sections, _bfd_mips_elf_finish_dynamic_symbol, _bfd_mips_elf_finish_dynamic_sections, _bfd_mips_elf_modify_segment_map, _bfd_mips_elf_discard_info, _bfd_mips_elf_write_section, _bfd_mips_elf_set_section_contents, _bfd_elf_mips_get_relocated_section_contents, _bfd_mips_elf_final_link, _bfd_mips_elf_merge_private_bfd_data): .. * hp300hpux.c (callback): .. * hppabsd-core.c (make_bfd_asection): .. * hpux-core.c (make_bfd_asection): .. * i386linux.c (linux_link_create_dynamic_sections, bfd_i386linux_size_dynamic_sections, linux_finish_dynamic_link): .. * i386msdos.c (msdos_write_object_contents): .. * i386os9k.c (os9k_callback, os9k_write_object_contents, os9k_set_section_contents): .. * ieee.c (parse_expression, ieee_slurp_external_symbols, ieee_slurp_sections, ieee_slurp_debug, ieee_slurp_section_data, ieee_write_section_part, do_with_relocs, do_as_repeat, do_without_relocs, ieee_write_debug_part, init_for_output, ieee_set_section_contents): .. * ihex.c (ihex_scan, ihex_read_section, ihex_get_section_contents): .. * irix-core.c (do_sections, make_bfd_asection): .. * libaout.h (aout_section_merge_with_text_p): .. * libbfd.c (_bfd_generic_get_section_contents, _bfd_generic_get_section_contents_in_window): .. * linker.c (default_indirect_link_order): .. * lynx-core.c (make_bfd_asection): .. * m68klinux.c (linux_link_create_dynamic_sections, bfd_m68klinux_size_dynamic_sections, linux_finish_dynamic_link): .. * mach-o.c (bfd_mach_o_make_bfd_section, bfd_mach_o_scan_read_dylinker, bfd_mach_o_scan_read_dylib, bfd_mach_o_scan_read_thread, bfd_mach_o_scan_read_symtab, bfd_mach_o_scan_read_segment): .. * merge.c (_bfd_add_merge_section, record_section, merge_strings, _bfd_merge_sections): .. * mmo.c (mmo_find_sec_w_addr, mmo_get_spec_section, mmo_get_loc, mmo_map_set_sizes, mmo_canonicalize_symtab, mmo_internal_write_section, mmo_write_object_contents): .. * netbsd-core.c (netbsd_core_file_p): .. * nlm32-alpha.c (nlm_alpha_read_reloc, nlm_alpha_write_import, nlm_alpha_set_public_section): .. * nlm32-ppc.c (nlm_powerpc_read_reloc, nlm_powerpc_write_reloc): .. * nlm32-sparc.c (nlm_sparc_write_import): .. * nlmcode.h (add_bfd_section, nlm_swap_auxiliary_headers_in, nlm_compute_section_file_positions): .. * oasys.c (oasys_object_p, oasys_slurp_section_data, oasys_write_sections, oasys_write_data, oasys_set_section_contents): .. * opncls.c (get_debug_link_info): .. * osf-core.c (make_bfd_asection): .. * pdp11.c (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, squirt_out_relocs, final_link, aout_link_input_section): .. * peXXigen.c (_bfd_XXi_swap_sym_in, _bfd_XXi_swap_aouthdr_out, pe_print_idata, pe_print_edata, pe_print_pdata, pe_print_reloc): .. * pef.c (bfd_pef_make_bfd_section, bfd_pef_print_loader_section, bfd_pef_scan_start_address, bfd_pef_parse_symbols): .. * ppcboot.c (ppcboot_object_p, ppcboot_canonicalize_symtab): .. * ptrace-core.c (ptrace_unix_core_file_p): .. * reloc.c (bfd_perform_relocation, bfd_install_relocation, _bfd_final_link_relocate, bfd_generic_relax_section, bfd_generic_get_relocated_section_contents): .. * reloc16.c (bfd_coff_reloc16_relax_section, bfd_coff_reloc16_get_relocated_section_c): .. * riscix.c (riscix_some_aout_object_p): .. * rs6000-core.c (read_hdr, make_bfd_asection): .. * sco5-core.c (make_bfd_asection): .. * simple.c (bfd_simple_get_relocated_section_contents): .. * som.c (som_object_setup, setup_sections, som_prep_headers, som_write_fixups, som_begin_writing, bfd_section_from_som_symbol, som_set_reloc_info, som_get_section_contents, som_bfd_link_split_section): .. * sparclinux.c (linux_link_create_dynamic_sections, bfd_sparclinux_size_dynamic_sections, linux_finish_dynamic_link): .. * srec.c (srec_scan, srec_read_section, srec_get_section_contents): .. * stabs.c (_bfd_link_section_stabs, _bfd_discard_section_stabs, _bfd_write_stab_strings, _bfd_stab_section_offset): .. * sunos.c (sunos_read_dynamic_info, sunos_create_dynamic_sections, bfd_sunos_size_dynamic_sections, sunos_scan_std_relocs, sunos_scan_ext_relocs, sunos_scan_dynamic_symbol, sunos_write_dynamic_symbol, sunos_check_dynamic_reloc, sunos_finish_dynamic_link): .. * syms.c (_bfd_stab_section_find_nearest_line): .. * tekhex.c (first_phase, tekhex_set_section_contents, tekhex_write_object_contents): .. * trad-core.c (trad_unix_core_file_p): .. * versados.c (process_esd, process_otr, process_otr): .. * vms-gsd.c (_bfd_vms_slurp_gsd, _bfd_vms_write_gsd): .. * vms-misc.c (add_new_contents): .. * vms-tir.c (check_section, new_section, _bfd_vms_write_tir): .. * vms.c (vms_set_section_contents): .. * xcofflink.c (xcoff_get_section_contents, xcoff_link_add_symbols, xcoff_sweep, bfd_xcoff_size_dynamic_sections, xcoff_build_ldsyms, _bfd_xcoff_bfd_final_link, xcoff_link_input_bfd): .. * xsym.c (bfd_sym_scan): .. See above. binutils/ * objcopy.c (copy_section): Don't set _cooked_size. include/ * bfdlink.h (struct bfd_link_order): Update comment. ld/ * ldlang.c (print_output_section_statement): Don't print size before relaxation. (IGNORE_SECTION): Remove bfd arg. Update all callers. * ldexp.c (fold_name): .. See below. * ldlang.c (section_already_linked, print_output_section_statement, print_input_section, insert_pad, size_input_section, lang_check_section_addresses, lang_size_sections_1, lang_size_sections, lang_do_assignments_1, lang_set_startof, lang_one_common, lang_reset_memory_regions, lang_process, lang_abs_symbol_at_end_of, lang_do_version_exports_section): .. * ldwrite.c (build_link_order, clone_section, ds, split_sections): .. * pe-dll.c (process_def_file, generate_reloc): .. * emultempl/elf32.em (gld${EMULATION_NAME}_find_statement_assignment, gld${EMULATION_NAME}_before_allocation): .. * emultempl/mmix-elfnmmo.em (mmix_after_allocation): .. * emultempl/sh64elf.em (sh64_elf_${EMULATION_NAME}_before_allocation, sh64_elf_${EMULATION_NAME}_after_allocation): .. * emultempl/sunos.em (gld${EMULATION_NAME}_before_allocation): .. * emultempl/xtensaelf.em (ld_assign_relative_paged_dot, ld_local_file_relocations_fit, ld_xtensa_insert_page_offsets): Use "size" instead of "_raw_size" and "_cooked_size". Expand bfd_section_size macro invocations.
2004-06-24 06:46:28 +02:00
if (section->size != 0
2003-04-01 17:50:31 +02:00
&& (first_section
|| (in_literals && !section_is_target (deps, l))
|| (!in_literals && section_is_target (deps, l))))
{
do_xtensa_alignment = TRUE;
}
first_section = FALSE;
bfd/ * section.c (struct sec): Rename "_cooked_size" to "size". Rename "_raw_size" to "rawsize". (STD_SECTION): Adjust comments. (bfd_set_section_size, bfd_get_section_contents): Use size. (bfd_malloc_and_get_section): New function. * bfd-in.h (bfd_section_size, bfd_get_section_size): Use size. * coff-sh.c (sh_relax_section): Alloc coff_section_data struct early. Correctly free reloc and contents memory. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Delete FIXME and fake CIE now that we can shink section size to zero. (_bfd_elf_write_section_eh_frame): Likewise.. * elf32-ppc.c (ppc_elf_relax_section): Delay reading section contents. * elf-m10300.c (mn10300_elf_final_link_relocate): Don't use _bfd_stab_section_offset. Use _bfd_elf_section_offset. * stabs.c (_bfd_stab_section_offset_): Remove unused args and unneeded indirection. * elf.c (_bfd_elf_section_offset): .. and update call. * libbfd-in.h (_bfd_stab_section_offset): Update prototype. * libbfd.h: Regenerate. * bfd-in2.h: Regenerate. Replace occurrences of "_raw_size" and "_cooked_size" in most places with "size". Set new "rawsize" for stabs, eh_frame, and SEC_MERGE sections. Use "rawsize", if non-zero, for bfd_get_section_contents calls if the section might be a stabs, eh_frame, or SEC_MERGE section. Similarly use "rawsize", if non-zero, in reloc functions to validate reloc addresses. Use new bfd_malloc_and_get_section in most places where bfd_get_section_contents was called. Expand all occurrences of bfd_section_size and bfd_get_section_size. Rename "raw_size" var in grok_prstatus and similar functions to "size". * aix386-core.c (aix386_core_file_p): .. * aix5ppc-core.c (xcoff64_core_p): .. * aout-adobe.c (aout_adobe_callback, aout_adobe_write_object_contents, aout_adobe_set_section_contents): .. * aout-target.h (callback): .. * aout-tic30.c (tic30_aout_callback, tic30_aout_final_link_relocate, MY_bfd_final_link): .. * aoutf1.h (sunos4_core_file_p): .. * aoutx.h (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, translate_from_native_sym_flags, final_link, aout_link_input_section): .. * binary.c (binary_object_p, binary_canonicalize_symtab, binary_set_section_contents): .. * bout.c (b_out_callback, b_out_write_object_contents, b_out_set_section_contents, b_out_bfd_relax_section, b_out_bfd_get_relocated_section_contents): .. * cisco-core.c (cisco_core_file_validate): .. * coff-alpha.c (alpha_ecoff_object_p, alpha_ecoff_get_relocated_section_conten, alpha_relocate_section): .. * coff-arm.c (coff_arm_relocate_section, bfd_arm_allocate_interworking_sections): .. * coff-h8300.c (h8300_reloc16_extra_cases, h8300_bfd_link_add_symbols): .. * coff-mips.c (mips_refhi_reloc, mips_gprel_reloc): .. * coff-ppc.c (coff_ppc_relocate_section, ppc_allocate_toc_section, ppc_bfd_coff_final_link): .. * coff-rs6000.c (xcoff_reloc_type_br, xcoff_ppc_relocate_section): .. * coff-sh.c (sh_relax_section, sh_relax_delete_bytes, sh_align_loads, sh_coff_get_relocated_section_contents): .. * coff64-rs6000.c (xcoff64_write_object_contents, xcoff64_reloc_type_br, xcoff64_ppc_relocate_section): .. * coffcode.h (coff_compute_section_file_positions, coff_write_object_contents): .. * coffgen.c (make_a_section_from_file, coff_write_symbols, coff_section_symbol, build_debug_section): .. * cofflink.c (coff_link_add_symbols, _bfd_coff_final_link, process_embedded_commands, _bfd_coff_link_input_bfd, _bfd_coff_write_global_sym): .. * cpu-arm.c (bfd_arm_update_notes, bfd_arm_get_mach_from_notes): .. * cpu-ns32k.c (do_ns32k_reloc, _bfd_ns32k_final_link_relocate): .. * dwarf1.c (parse_line_table, _bfd_dwarf1_find_nearest_line): .. * dwarf2.c (read_indirect_string, read_abbrevs, decode_line_info, _bfd_dwarf2_find_nearest_line): .. * ecoff.c (bfd_debug_section, ecoff_set_symbol_info, ecoff_compute_section_file_positions, _bfd_ecoff_write_object_contents, ecoff_indirect_link_order): .. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame, _bfd_elf_discard_section_eh_frame_hdr, _bfd_elf_maybe_strip_eh_frame_hdr, _bfd_elf_eh_frame_section_offset, _bfd_elf_write_section_eh_frame, _bfd_elf_write_section_eh_frame_hdr): .. * elf-hppa.h (elf_hppa_sort_unwind): .. * elf-m10200.c (mn10200_elf_relax_section, mn10200_elf_relax_delete_bytes, mn10200_elf_get_relocated_section_contents): .. * elf-m10300.c (_bfd_mn10300_elf_create_got_section, mn10300_elf_check_relocs, mn10300_elf_relax_section, mn10300_elf_relax_delete_bytes, mn10300_elf_get_relocated_section_contents, _bfd_mn10300_elf_adjust_dynamic_symbol, _bfd_mn10300_elf_discard_copies, _bfd_mn10300_elf_size_dynamic_sections, _bfd_mn10300_elf_finish_dynamic_sections): .. * elf.c (_bfd_elf_print_private_bfd_data, bfd_elf_get_bfd_needed_list, _bfd_elf_make_section_from_phdr, elf_fake_sections, bfd_elf_set_group_contents, map_sections_to_segments, elf_sort_sections, assign_file_positions_for_segments, SECTION_SIZE, copy_private_bfd_data, _bfd_elf_get_dynamic_reloc_upper_bound, _bfd_elf_canonicalize_dynamic_reloc, elfcore_maybe_make_sect, _bfd_elfcore_make_pseudosection, elfcore_grok_prstatus, elfcore_grok_lwpstatus, elfcore_grok_win32pstatus, elfcore_grok_note, elfcore_grok_nto_status, elfcore_grok_nto_gregs, _bfd_elf_rel_local_sym, _bfd_elf_get_synthetic_symtab): .. * elf32-arm.h (bfd_elf32_arm_allocate_interworking_sect, bfd_elf32_arm_process_before_allocation, elf32_arm_adjust_dynamic_symbol, allocate_dynrelocs, elf32_arm_size_dynamic_sections, elf32_arm_finish_dynamic_sections, elf32_arm_write_section): .. * elf32-cris.c (cris_elf_grok_prstatus, elf_cris_finish_dynamic_sections, cris_elf_gc_sweep_hook, elf_cris_adjust_gotplt_to_got, elf_cris_adjust_dynamic_symbol, cris_elf_check_relocs, elf_cris_size_dynamic_sections, elf_cris_discard_excess_dso_dynamics, elf_cris_discard_excess_program_dynamics): .. * elf32-d30v.c (bfd_elf_d30v_reloc, bfd_elf_d30v_reloc_21): .. * elf32-dlx.c (_bfd_dlx_elf_hi16_reloc): .. * elf32-frv.c (_frvfdpic_add_dyn_reloc, _frvfdpic_add_rofixup, _frv_create_got_section, _frvfdpic_assign_plt_entries, elf32_frvfdpic_size_dynamic_sections, elf32_frvfdpic_modify_segment_map, elf32_frvfdpic_finish_dynamic_sections): .. * elf32-h8300.c (elf32_h8_relax_section, elf32_h8_relax_delete_bytes, elf32_h8_get_relocated_section_contents): .. * elf32-hppa.c (hppa_build_one_stub, hppa_size_one_stub, elf32_hppa_adjust_dynamic_symbol, allocate_plt_static, allocate_dynrelocs, elf32_hppa_size_dynamic_sections, group_sections, elf32_hppa_size_stubs, elf32_hppa_set_gp, elf32_hppa_build_stubs, elf32_hppa_finish_dynamic_sections): .. * elf32-i370.c (i370_elf_adjust_dynamic_symbol, i370_elf_size_dynamic_sections, i370_elf_check_relocs, i370_elf_finish_dynamic_sections): .. * elf32-i386.c (elf_i386_grok_prstatus, elf_i386_adjust_dynamic_symbol, allocate_dynrelocs, elf_i386_size_dynamic_sections, elf_i386_relocate_section, elf_i386_finish_dynamic_sections): .. * elf32-i860.c (i860_howto_pc26_reloc, i860_howto_pc16_reloc, i860_howto_highadj_reloc, i860_howto_splitn_reloc): .. * elf32-ip2k.c (ip2k_is_switch_table_128, ip2k_relax_switch_table_128, ip2k_is_switch_table_256, ip2k_relax_switch_table_256, ip2k_elf_relax_section, adjust_all_relocations, ip2k_elf_relax_delete_bytes): .. * elf32-m32r.c (m32r_elf_do_10_pcrel_reloc, m32r_elf_hi16_reloc, m32r_elf_generic_reloc, m32r_elf_adjust_dynamic_symbol, allocate_dynrelocs, m32r_elf_size_dynamic_sections, m32r_elf_relocate_section, m32r_elf_finish_dynamic_sections, m32r_elf_relax_section, m32r_elf_relax_delete_bytes, m32r_elf_get_relocated_section_contents): .. * elf32-m68hc11.c (m68hc11_elf_build_one_stub, m68hc11_elf_size_one_stub, m68hc11_elf_relax_section, m68hc11_elf_relax_delete_bytes): .. * elf32-m68hc12.c (m68hc12_elf_build_one_stub, m68hc12_elf_size_one_stub): .. * elf32-m68hc1x.c (elf32_m68hc11_size_stubs, elf32_m68hc11_build_stubs, m68hc11_elf_special_reloc): .. * elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_gc_sweep_hook, elf_m68k_adjust_dynamic_symbol, elf_m68k_size_dynamic_sections, elf_m68k_discard_copies, elf_m68k_finish_dynamic_sections): .. * elf32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elf32-or32.c (or32_elf_consth_reloc): .. * elf32-ppc.c (ppc_elf_relax_section, ppc_elf_addr16_ha_reloc, elf_create_pointer_linker_section, ppc_elf_create_linker_section, ppc_elf_additional_program_headers, ppc_elf_adjust_dynamic_symbol, allocate_dynrelocs, ppc_elf_size_dynamic_sections, ppc_elf_finish_dynamic_sections, ppc_elf_grok_prstatus, ppc_elf_final_write_processing): .. * elf32-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections, elf_s390_grok_prstatus): .. * elf32-sh.c (sh_elf_reloc_loop, sh_elf_relax_section, sh_elf_relax_delete_bytes, sh_elf_align_loads, sh_elf_adjust_dynamic_symbol, allocate_dynrelocs, sh_elf_size_dynamic_sections, sh_elf_get_relocated_section_contents, sh_elf_finish_dynamic_sections, elf32_shlin_grok_prstatus): .. * elf32-sh64-com.c (sh64_address_in_cranges, sh64_get_contents_type): .. * elf32-sh64.c (sh64_find_section_for_address, sh64_elf_final_write_processing): .. * elf32-sparc.c (sparc_elf_wdisp16_reloc, sparc_elf_hix22_reloc, sparc_elf_lox10_reloc, elf32_sparc_adjust_dynamic_symbol, allocate_dynrelocs, elf32_sparc_size_dynamic_sections, elf32_sparc_relocate_section, elf32_sparc_finish_dynamic_sections): .. * elf32-v850.c (v850_elf_reloc, v850_elf_relax_section): .. * elf32-vax.c (elf_vax_check_relocs, elf_vax_adjust_dynamic_symbol, elf_vax_size_dynamic_sections, elf_vax_discard_copies, elf_vax_instantiate_got_entries, elf_vax_relocate_section, elf_vax_finish_dynamic_sections): .. * elf32-xstormy16.c (xstormy16_elf_24_reloc, xstormy16_elf_check_relocs, xstormy16_relax_plt_check, xstormy16_elf_relax_section, xstormy16_elf_always_size_sections, xstormy16_elf_finish_dynamic_sections): .. * elf32-xtensa.c (xtensa_read_table_entries, elf_xtensa_allocate_got_size, elf_xtensa_allocate_local_got_size, elf_xtensa_size_dynamic_sections, elf_xtensa_do_reloc, bfd_elf_xtensa_reloc, elf_xtensa_relocate_section, elf_xtensa_combine_prop_entries, elf_xtensa_finish_dynamic_sections, elf_xtensa_discard_info_for_section, elf_xtensa_grok_prstatus, get_relocation_opcode, retrieve_contents, find_relaxable_sections, collect_source_relocs, is_resolvable_asm_expansion, remove_literals, relax_section, shrink_dynamic_reloc_sections, relax_property_section, xtensa_callback_required_dependence): .. * elf64-alpha.c (elf64_alpha_reloc_gpdisp, elf64_alpha_relax_section, elf64_alpha_check_relocs, elf64_alpha_adjust_dynamic_symbol, elf64_alpha_calc_got_offsets_for_symbol, elf64_alpha_calc_got_offsets, elf64_alpha_size_plt_section, elf64_alpha_size_plt_section_1, elf64_alpha_always_size_sections, elf64_alpha_calc_dynrel_sizes, elf64_alpha_size_rela_got_section, elf64_alpha_size_rela_got_1, elf64_alpha_size_dynamic_sections, elf64_alpha_emit_dynrel, elf64_alpha_finish_dynamic_sections, elf64_alpha_final_link): .. * elf64-hppa.c (allocate_dynrel_entries, elf64_hppa_size_dynamic_sections, elf64_hppa_finish_dynamic_sections): .. * elf64-mips.c (mips_elf64_gprel32_reloc, mips16_gprel_reloc, mips_elf64_canonicalize_dynamic_reloc, mips_elf64_slurp_reloc_table, elf64_mips_grok_prstatus): .. * elf64-mmix.c (mmix_elf_perform_relocation, mmix_elf_reloc, mmix_elf_relocate_section, mmix_elf_final_link, mmix_set_relaxable_size, _bfd_mmix_after_linker_allocation, mmix_elf_relax_section, mmix_elf_get_section_contents): .. * elf64-ppc.c (ppc64_elf_object_p, ppc64_elf_grok_prstatus, ppc64_elf_check_relocs, ppc64_elf_func_desc_adjust, ppc64_elf_adjust_dynamic_symbol, ppc64_elf_edit_opd, allocate_dynrelocs, ppc64_elf_size_dynamic_sections, ppc_build_one_stub, ppc_size_one_stub, ppc64_elf_next_toc_section, toc_adjusting_stub_needed, group_sections, ppc64_elf_size_stubs, ppc64_elf_build_stubs, ppc64_elf_relocate_section, ppc64_elf_finish_dynamic_sections): .. * elf64-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections): .. * elf64-sh64.c (sh_elf64_get_relocated_section_contents, sh_elf64_check_relocs, sh64_elf64_adjust_dynamic_symbol, sh64_elf64_discard_copies, sh64_elf64_size_dynamic_sections, sh64_elf64_finish_dynamic_sections): .. * elf64-sparc.c (sparc64_elf_slurp_reloc_table, init_insn_reloc, sparc64_elf_check_relocs, sparc64_elf_adjust_dynamic_symbol, sparc64_elf_size_dynamic_sections, sparc64_elf_relocate_section, sparc64_elf_finish_dynamic_symbol, sparc64_elf_finish_dynamic_sections): .. * elf64-x86-64.c (elf64_x86_64_grok_prstatus, elf64_x86_64_adjust_dynamic_symbol, allocate_dynrelocs, elf64_x86_64_size_dynamic_sections, elf64_x86_64_relocate_section, elf64_x86_64_finish_dynamic_sections): .. * elfarm-nabi.c (elf32_arm_nabi_grok_prstatus): .. * elfcode.h (elf_slurp_reloc_table): .. * elflink.c (_bfd_elf_create_got_section, elf_add_dt_needed_tag, elf_finalize_dynstr, elf_link_add_object_symbols, bfd_elf_size_dynamic_sections, elf_link_sort_relocs, elf_link_input_bfd, bfd_elf_final_link, bfd_elf_discard_info): .. * elfn32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elfxx-ia64.c (elfNN_ia64_relax_section, allocate_dynrel_entries, elfNN_ia64_size_dynamic_sections, elfNN_ia64_install_dyn_reloc, elfNN_ia64_choose_gp, elfNN_ia64_final_link, elfNN_ia64_finish_dynamic_sections): .. * elfxx-mips.c (mips_elf_create_procedure_table, mips_elf_check_mips16_stubs, _bfd_mips_elf_gprel16_with_gp, _bfd_mips_elf_hi16_reloc, _bfd_mips_elf_generic_reloc, mips_elf_global_got_index, mips_elf_multi_got, mips_elf_create_compact_rel_section, mips_elf_calculate_relocation, mips_elf_allocate_dynamic_relocations, mips_elf_create_dynamic_relocation, _bfd_mips_elf_fake_sections, _bfd_mips_relax_section, _bfd_mips_elf_adjust_dynamic_symbol, _bfd_mips_elf_always_size_sections, _bfd_mips_elf_size_dynamic_sections, _bfd_mips_elf_finish_dynamic_symbol, _bfd_mips_elf_finish_dynamic_sections, _bfd_mips_elf_modify_segment_map, _bfd_mips_elf_discard_info, _bfd_mips_elf_write_section, _bfd_mips_elf_set_section_contents, _bfd_elf_mips_get_relocated_section_contents, _bfd_mips_elf_final_link, _bfd_mips_elf_merge_private_bfd_data): .. * hp300hpux.c (callback): .. * hppabsd-core.c (make_bfd_asection): .. * hpux-core.c (make_bfd_asection): .. * i386linux.c (linux_link_create_dynamic_sections, bfd_i386linux_size_dynamic_sections, linux_finish_dynamic_link): .. * i386msdos.c (msdos_write_object_contents): .. * i386os9k.c (os9k_callback, os9k_write_object_contents, os9k_set_section_contents): .. * ieee.c (parse_expression, ieee_slurp_external_symbols, ieee_slurp_sections, ieee_slurp_debug, ieee_slurp_section_data, ieee_write_section_part, do_with_relocs, do_as_repeat, do_without_relocs, ieee_write_debug_part, init_for_output, ieee_set_section_contents): .. * ihex.c (ihex_scan, ihex_read_section, ihex_get_section_contents): .. * irix-core.c (do_sections, make_bfd_asection): .. * libaout.h (aout_section_merge_with_text_p): .. * libbfd.c (_bfd_generic_get_section_contents, _bfd_generic_get_section_contents_in_window): .. * linker.c (default_indirect_link_order): .. * lynx-core.c (make_bfd_asection): .. * m68klinux.c (linux_link_create_dynamic_sections, bfd_m68klinux_size_dynamic_sections, linux_finish_dynamic_link): .. * mach-o.c (bfd_mach_o_make_bfd_section, bfd_mach_o_scan_read_dylinker, bfd_mach_o_scan_read_dylib, bfd_mach_o_scan_read_thread, bfd_mach_o_scan_read_symtab, bfd_mach_o_scan_read_segment): .. * merge.c (_bfd_add_merge_section, record_section, merge_strings, _bfd_merge_sections): .. * mmo.c (mmo_find_sec_w_addr, mmo_get_spec_section, mmo_get_loc, mmo_map_set_sizes, mmo_canonicalize_symtab, mmo_internal_write_section, mmo_write_object_contents): .. * netbsd-core.c (netbsd_core_file_p): .. * nlm32-alpha.c (nlm_alpha_read_reloc, nlm_alpha_write_import, nlm_alpha_set_public_section): .. * nlm32-ppc.c (nlm_powerpc_read_reloc, nlm_powerpc_write_reloc): .. * nlm32-sparc.c (nlm_sparc_write_import): .. * nlmcode.h (add_bfd_section, nlm_swap_auxiliary_headers_in, nlm_compute_section_file_positions): .. * oasys.c (oasys_object_p, oasys_slurp_section_data, oasys_write_sections, oasys_write_data, oasys_set_section_contents): .. * opncls.c (get_debug_link_info): .. * osf-core.c (make_bfd_asection): .. * pdp11.c (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, squirt_out_relocs, final_link, aout_link_input_section): .. * peXXigen.c (_bfd_XXi_swap_sym_in, _bfd_XXi_swap_aouthdr_out, pe_print_idata, pe_print_edata, pe_print_pdata, pe_print_reloc): .. * pef.c (bfd_pef_make_bfd_section, bfd_pef_print_loader_section, bfd_pef_scan_start_address, bfd_pef_parse_symbols): .. * ppcboot.c (ppcboot_object_p, ppcboot_canonicalize_symtab): .. * ptrace-core.c (ptrace_unix_core_file_p): .. * reloc.c (bfd_perform_relocation, bfd_install_relocation, _bfd_final_link_relocate, bfd_generic_relax_section, bfd_generic_get_relocated_section_contents): .. * reloc16.c (bfd_coff_reloc16_relax_section, bfd_coff_reloc16_get_relocated_section_c): .. * riscix.c (riscix_some_aout_object_p): .. * rs6000-core.c (read_hdr, make_bfd_asection): .. * sco5-core.c (make_bfd_asection): .. * simple.c (bfd_simple_get_relocated_section_contents): .. * som.c (som_object_setup, setup_sections, som_prep_headers, som_write_fixups, som_begin_writing, bfd_section_from_som_symbol, som_set_reloc_info, som_get_section_contents, som_bfd_link_split_section): .. * sparclinux.c (linux_link_create_dynamic_sections, bfd_sparclinux_size_dynamic_sections, linux_finish_dynamic_link): .. * srec.c (srec_scan, srec_read_section, srec_get_section_contents): .. * stabs.c (_bfd_link_section_stabs, _bfd_discard_section_stabs, _bfd_write_stab_strings, _bfd_stab_section_offset): .. * sunos.c (sunos_read_dynamic_info, sunos_create_dynamic_sections, bfd_sunos_size_dynamic_sections, sunos_scan_std_relocs, sunos_scan_ext_relocs, sunos_scan_dynamic_symbol, sunos_write_dynamic_symbol, sunos_check_dynamic_reloc, sunos_finish_dynamic_link): .. * syms.c (_bfd_stab_section_find_nearest_line): .. * tekhex.c (first_phase, tekhex_set_section_contents, tekhex_write_object_contents): .. * trad-core.c (trad_unix_core_file_p): .. * versados.c (process_esd, process_otr, process_otr): .. * vms-gsd.c (_bfd_vms_slurp_gsd, _bfd_vms_write_gsd): .. * vms-misc.c (add_new_contents): .. * vms-tir.c (check_section, new_section, _bfd_vms_write_tir): .. * vms.c (vms_set_section_contents): .. * xcofflink.c (xcoff_get_section_contents, xcoff_link_add_symbols, xcoff_sweep, bfd_xcoff_size_dynamic_sections, xcoff_build_ldsyms, _bfd_xcoff_bfd_final_link, xcoff_link_input_bfd): .. * xsym.c (bfd_sym_scan): .. See above. binutils/ * objcopy.c (copy_section): Don't set _cooked_size. include/ * bfdlink.h (struct bfd_link_order): Update comment. ld/ * ldlang.c (print_output_section_statement): Don't print size before relaxation. (IGNORE_SECTION): Remove bfd arg. Update all callers. * ldexp.c (fold_name): .. See below. * ldlang.c (section_already_linked, print_output_section_statement, print_input_section, insert_pad, size_input_section, lang_check_section_addresses, lang_size_sections_1, lang_size_sections, lang_do_assignments_1, lang_set_startof, lang_one_common, lang_reset_memory_regions, lang_process, lang_abs_symbol_at_end_of, lang_do_version_exports_section): .. * ldwrite.c (build_link_order, clone_section, ds, split_sections): .. * pe-dll.c (process_def_file, generate_reloc): .. * emultempl/elf32.em (gld${EMULATION_NAME}_find_statement_assignment, gld${EMULATION_NAME}_before_allocation): .. * emultempl/mmix-elfnmmo.em (mmix_after_allocation): .. * emultempl/sh64elf.em (sh64_elf_${EMULATION_NAME}_before_allocation, sh64_elf_${EMULATION_NAME}_after_allocation): .. * emultempl/sunos.em (gld${EMULATION_NAME}_before_allocation): .. * emultempl/xtensaelf.em (ld_assign_relative_paged_dot, ld_local_file_relocations_fit, ld_xtensa_insert_page_offsets): Use "size" instead of "_raw_size" and "_cooked_size". Expand bfd_section_size macro invocations.
2004-06-24 06:46:28 +02:00
if (section->size != 0)
2003-04-01 17:50:31 +02:00
{
in_literals = (section_is_target (deps, l)
&& !section_is_source (deps, l));
}
}
if (do_xtensa_alignment && xtensa_page_power != 0)
{
/* Create an expression that increments the current address,
i.e., "dot", by (1 << xtensa_align_power). */
etree_type *name_op = exp_nameop (NAME, ".");
etree_type *addend_op = exp_intop (1 << xtensa_page_power);
etree_type *add_op = exp_binop ('+', name_op, addend_op);
etree_type *assign_op = exp_assop ('=', ".", add_op);
lang_assignment_statement_type *assign_stmt;
lang_statement_union_type *assign_union;
lang_statement_list_type tmplist;
2003-04-01 17:50:31 +02:00
/* There is hidden state in "lang_add_assignment". It
appends the new assignment statement to the stat_ptr
list. Thus, we swap it before and after the call. */
lang_list_init (&tmplist);
push_stat_ptr (&tmplist);
2003-04-01 17:50:31 +02:00
/* Warning: side effect; statement appended to stat_ptr. */
assign_stmt = lang_add_assignment (assign_op);
assign_union = (lang_statement_union_type *) assign_stmt;
pop_stat_ptr ();
2003-04-01 17:50:31 +02:00
assign_union->header.next = l;
*(*stack_p)->iterloc.loc = assign_union;
iter_stack_next (stack_p);
}
}
break;
default:
break;
}
2003-04-01 17:50:31 +02:00
}
return dot;
}
EOF
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
# Define some shell vars to insert bits of code into the standard ELF
2003-04-01 17:50:31 +02:00
# parse_args and list_options functions.
#
PARSE_AND_LIST_PROLOGUE='
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
#define OPTION_OPT_SIZEOPT (300)
#define OPTION_NO_RELAX (OPTION_OPT_SIZEOPT + 1)
#define OPTION_LITERAL_MOVEMENT (OPTION_NO_RELAX + 1)
#define OPTION_NO_LITERAL_MOVEMENT (OPTION_LITERAL_MOVEMENT + 1)
extern int elf32xtensa_size_opt;
extern int elf32xtensa_no_literal_movement;
2003-04-01 17:50:31 +02:00
'
PARSE_AND_LIST_LONGOPTS='
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
{ "size-opt", no_argument, NULL, OPTION_OPT_SIZEOPT},
2003-04-01 17:50:31 +02:00
{ "no-relax", no_argument, NULL, OPTION_NO_RELAX},
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
{ "literal-movement", no_argument, NULL, OPTION_LITERAL_MOVEMENT},
{ "no-literal-movement", no_argument, NULL, OPTION_NO_LITERAL_MOVEMENT},
2003-04-01 17:50:31 +02:00
'
PARSE_AND_LIST_OPTIONS='
fprintf (file, _("\
--size-opt When relaxing longcalls, prefer size\n\
optimization over branch target alignment\n"));
fprintf (file, _("\
--no-relax Do not relax branches or coalesce literals\n"));
2003-04-01 17:50:31 +02:00
'
PARSE_AND_LIST_ARGS_CASES='
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
case OPTION_OPT_SIZEOPT:
elf32xtensa_size_opt = 1;
break;
2003-04-01 17:50:31 +02:00
case OPTION_NO_RELAX:
disable_relaxation = TRUE;
break;
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
case OPTION_LITERAL_MOVEMENT:
elf32xtensa_no_literal_movement = 0;
break;
case OPTION_NO_LITERAL_MOVEMENT:
elf32xtensa_no_literal_movement = 1;
break;
2003-04-01 17:50:31 +02:00
'
# Replace some of the standard ELF functions with our own versions.
#
LDEMUL_BEFORE_PARSE=elf_xtensa_before_parse
bfd ChangeLog * elf32-xtensa.c (elf32xtensa_size_opt): New global variable. (xtensa_default_isa): Global variable moved here from xtensa-isa.c. (elf32xtensa_no_literal_movement): New global variable. (elf_howto_table): Add entries for new relocations. (elf_xtensa_reloc_type_lookup): Handle new relocations. (property_table_compare): When addresses are equal, compare sizes and various property flags. (property_table_matches): New. (xtensa_read_table_entries): Extend to read new property tables. Add output_addr parameter to indicate that output addresses should be used. Use bfd_get_section_limit. (elf_xtensa_find_property_entry): New. (elf_xtensa_in_literal_pool): Use elf_xtensa_find_property_entry. (elf_xtensa_check_relocs): Handle new relocations. (elf_xtensa_do_reloc): Use bfd_get_section_limit. Handle new relocations. Use new xtensa-isa.h functions. (build_encoding_error_message): Remove encode_result parameter. Add new target_address parameter used to detect alignment errors. (elf_xtensa_relocate_section): Use bfd_get_section_limit. Clean up error handling. Use new is_operand_relocation function. (elf_xtensa_combine_prop_entries, elf_xtensa_merge_private_bfd_data): Use underbar macro for error messages. Formatting. (get_const16_opcode): New. (get_l32r_opcode): Add a separate flag for initialization. (get_relocation_opnd): Operand number is no longer explicit in the relocation. Change to decode the opcode and analyze its operands. (get_relocation_slot): New. (get_relocation_opcode): Add bfd parameter. Use bfd_get_section_limit. Use new xtensa-isa.h functions to handle multislot instructions. (is_l32r_relocation): Add bfd parameter. Use is_operand_relocation. (get_asm_simplify_size, is_alt_relocation, is_operand_relocation, insn_decode_len, insn_decode_opcode, check_branch_target_aligned, check_loop_aligned, check_branch_target_aligned_address, narrowable, widenable, narrow_instruction, widen_instruction, op_single_fmt_table, get_single_format, init_op_single_format_table): New. (elf_xtensa_do_asm_simplify): Add error_message parameter and use it instead of calling _bfd_error_handler. Use new xtensa-isa.h functions. (contract_asm_expansion): Add error_message parameter and pass it to elf_xtensa_do_asm_simplify. Replace use of R_XTENSA_OP0 relocation with R_XTENSA_SLOT0_OP. (get_expanded_call_opcode): Extend to handle either L32R or CONST16 instructions. Use new xtensa-isa.h functions. (r_reloc struct): Add new virtual_offset field. (r_reloc_init): Add contents and content_length parameters. Set virtual_offset field to zero. Add contents to target_offset field for partial_inplace relocations. (r_reloc_is_defined): Check for null. (print_r_reloc): New debug function. (source_reloc struct): Replace xtensa_operand field with pair of the opcode and the operand position. Add is_abs_literal field. (init_source_reloc): Specify operand by opcode/position pair. Set is_abs_literal field. (source_reloc_compare): When target_offsets are equal, compare other fields to make sorting predictable. (literal_value struct): Add is_abs_literal field. (value_map_hash_table struct): Add has_last_loc and last_loc fields. (init_literal_value): New. (is_same_value): Replace with ... (literal_value_equal): ... this function. Add comparisons of virtual_offset and is_abs_literal fields. (value_map_hash_table_init): Use bfd_zmalloc. Check for allocation failure. Initialize has_last_loc field. (value_map_hash_table_delete): New. (hash_literal_value): Rename to ... (literal_value_hash): ... this. Include is_abs_literal flag and virtual_offset field in the hash value. (get_cached_value): Rename to ... (value_map_get_cached_value): ... this. Update calls to literal_value_hash and literal_value_equal. (add_value_map): Check for allocation failure. Update calls to value_map_get_cached_value and literal_value_hash. (text_action, text_action_list, text_action_t): New types. (find_fill_action, compute_removed_action_diff, adjust_fill_action, text_action_add, text_action_add_literal, offset_with_removed_text, offset_with_removed_text_before_fill, find_insn_action, print_action_list, print_removed_literals): New. (offset_with_removed_literals): Delete. (xtensa_relax_info struct): Add is_relaxable_asm_section, action_list, fix_array, fix_array_count, allocated_relocs, relocs_count, and allocated_relocs_count fields. (init_xtensa_relax_info): Initialize new fields. (reloc_bfd_fix struct): Add new translated field. (reloc_bfd_fix_init): Add translated parameter and use it to set the translated field. (fix_compare, cache_fix_array): New. (get_bfd_fix): Remove fix_list parameter and get all relax_info for the section via get_xtensa_relax_info. Use cache_fix_array to set up sorted fix_array and use bsearch instead of linear search. (section_cache_t): New struct. (init_section_cache, section_cache_section, clear_section_cache): New. (ebb_t, ebb_target_enum, proposed_action, ebb_constraint): New types. (init_ebb_constraint, free_ebb_constraint, init_ebb, extend_ebb_bounds, extend_ebb_bounds_forward, extend_ebb_bounds_backward, insn_block_decodable_len, ebb_propose_action, ebb_add_proposed_action): New. (retrieve_contents): Use bfd_get_section_limit. (elf_xtensa_relax_section): Add relocations_analyzed flag. Update call to compute_removed_literals. Free value_map_hash_table when no longer needed. (analyze_relocations): Check is_relaxable_asm_section flag. Call compute_text_actions for all sections. (find_relaxable_sections): Mark sections as relaxable if they contain ASM_EXPAND relocations that can be optimized. Adjust r_reloc_init call. Increment relax_info src_count field only for appropriate relocation types. Remove is_literal_section check. (collect_source_relocs): Use bfd_get_section_limit. Adjust calls to r_reloc_init and find_associated_l32r_irel. Check is_relaxable_asm_section flag. Handle L32R instructions with absolute literals. Pass is_abs_literal flag to init_source_reloc. (is_resolvable_asm_expansion): Use bfd_get_section_limit. Check for CONST16 instructions. Adjust calls to r_reloc_init and pcrel_reloc_fits. Handle weak symbols conservatively. (find_associated_l32r_irel): Add bfd parameter and pass it to is_l32r_relocation. (compute_text_actions, compute_ebb_proposed_actions, compute_ebb_actions, check_section_ebb_pcrels_fit, check_section_ebb_reduces, text_action_add_proposed, compute_fill_extra_space): New. (remove_literals): Replace with ... (compute_removed_literals): ... this function. Call init_section_cache. Use bfd_get_section_limit. Sort internal_relocs. Call xtensa_read_table_entries to get the property table. Skip relocations other than R_XTENSA_32 and R_XTENSA_PLT. Use new is_removable_literal, remove_dead_literal, and identify_literal_placement functions. (get_irel_at_offset): Rewrite to use bsearch on sorted relocations instead of linear search. (is_removable_literal, remove_dead_literal, identify_literal_placement): New. (relocations_reach): Update check for literal not referenced by any PC-relative relocations. Adjust call to pcrel_reloc_fits. (coalesce_shared_literal, move_shared_literal): New. (relax_section): Use bfd_get_section_limit. Call translate_section_fixes. Update calls to r_reloc_init and offset_with_removed_text. Check new is_relaxable_asm_section flag. Add call to pin_internal_relocs. Add special handling for R_XTENSA_ASM_SIMPLIFY and R_XTENSA_DIFF* relocs. Use virtual_offset info to calculate new addend_displacement variable. Replace code for deleting literals with more general code to perform the actions determined by the action_list for the section. (translate_section_fixes, translate_reloc_bfd_fix): New. (translate_reloc): Check new is_relaxable_asm_section flag. Call find_removed_literal only if is_operand_relocation. Update call to offset_with_removed_text. Use new target_offset and removed_bytes variables. (move_literal): New. (relax_property_section): Use bfd_get_section_limit. Set new is_full_prop_section flag and handle new property tables. Update calls to r_reloc_init and offset_with_removed_text. Check is_relaxable_asm_section flag. Handle expansion of zero-sized unreachable entries, with use of offset_with_removed_text_before_fill. For relocatable links, combine entries only for literal tables. (relax_section_symbols): Check is_relaxable_asm_section flag. Update calls to offset_with_removed_text. Translate st_size field for function symbols. (do_fix_for_relocatable_link): Change to return bfd_boolean to indicate failure. Add contents parameter. Update call to get_bfd_fix. Update call to r_reloc_init. Call _bfd_error_handler and return FALSE for R_XTENSA_ASM_EXPAND relocs. (do_fix_for_final_link): Add input_bfd and contents parameters. Update call to get_bfd_fix. Include offset from contents for partial_inplace relocations. (is_reloc_sym_weak): New. (pcrel_reloc_fits): Use new xtensa-isa.h functions. (prop_sec_len): New. (xtensa_is_property_section): Handle new property sections. (is_literal_section): Delete. (internal_reloc_compare): When r_offset matches, compare r_info and r_addend to make sorting predictable. (internal_reloc_matches): New. (xtensa_get_property_section_name): Handle new property sections. (xtensa_get_property_predef_flags): New. (xtensa_callback_required_dependence): Use bfd_get_section_limit. Update calls to xtensa_isa_init, is_l32r_relocation, and r_reloc_init. * xtensa-isa.c (xtensa_default_isa): Moved to elf32-xtensa.c. (xtisa_errno, xtisa_error_msg): New variables. (xtensa_isa_errno, xtensa_isa_error_msg): New. (xtensa_insnbuf_alloc): Add error handling. (xtensa_insnbuf_to_chars): Add num_chars parameter. Update to use xtensa_format_decode. Add error handling. (xtensa_insnbuf_from_chars): Add num_chars parameter. Decode the instruction length to find the number of bytes to copy. (xtensa_isa_init): Add error handling. Replace calls to xtensa_load_isa and xtensa_extend_isa with code to initialize lookup tables in the xtensa_modules structure. (xtensa_check_isa_config, xtensa_add_isa, xtensa_load_isa, xtensa_extend_isa): Delete. (xtensa_isa_free): Change to only free lookup tables. (opname_lookup_compare): Replace with ... (xtensa_isa_name_compare): ... this function. Use strcasecmp. (xtensa_insn_maxlength): Rename to ... (xtensa_isa_maxlength): ... this. (xtensa_insn_length): Delete. (xtensa_insn_length_from_first_byte): Replace with ... (xtensa_isa_length_from_chars): ... this function. (xtensa_num_opcodes): Rename to ... (xtensa_isa_num_opcodes): ... this. (xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_regfiles, xtensa_isa_num_stages, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot): New functions. (xtensa_opcode_lookup): Add error handling. (xtensa_decode_insn): Replace with ... (xtensa_opcode_decode): ... this function, with new format and slot parameters. Add error handling. (xtensa_encode_insn): Replace with ... (xtensa_opcode_encode): ... this function, which does the encoding via one of the entries in the "encode_fns" array. Add error handling. (xtensa_opcode_name): Add error handling. (xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call): New. (xtensa_num_operands): Replace with ... (xtensa_opcode_num_operands): ... this function. Add error handling. (xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible): New. (xtensa_get_operand, xtensa_operand_kind): Delete. (xtensa_operand_inout): Add error handling and special-case for "sout" operands. (xtensa_operand_get_field, xtensa_operand_set_field): Rewritten to operate on one slot of an instruction. Added error handling. (xtensa_operand_encode): Handle default operands with no encoding functions. Check for success by comparing against decoded value. Add error handling. (xtensa_operand_decode): Handle default operands. Return decoded value through argument pointer. Add error handling. (xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg): New. (xtensa_operand_isPCRelative): Rename to ... (xtensa_operand_is_PCrelative): ... this. Add error handling. (xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Return value through argument pointer. Add error handling. (xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New. * xtensa-modules.c: Rewrite to use new data structures. * reloc.c (BFD_RELOC_XTENSA_DIFF8, BFD_RELOC_XTENSA_DIFF16, BFD_RELOC_XTENSA_DIFF32, BFD_RELOC_XTENSA_SLOT0_OP, BFD_RELOC_XTENSA_SLOT1_OP, BFD_RELOC_XTENSA_SLOT2_OP, BFD_RELOC_XTENSA_SLOT3_OP, BFD_RELOC_XTENSA_SLOT4_OP, BFD_RELOC_XTENSA_SLOT5_OP, BFD_RELOC_XTENSA_SLOT6_OP, BFD_RELOC_XTENSA_SLOT7_OP, BFD_RELOC_XTENSA_SLOT8_OP, BFD_RELOC_XTENSA_SLOT9_OP, BFD_RELOC_XTENSA_SLOT10_OP, BFD_RELOC_XTENSA_SLOT11_OP, BFD_RELOC_XTENSA_SLOT12_OP, BFD_RELOC_XTENSA_SLOT13_OP, BFD_RELOC_XTENSA_SLOT14_OP, BFD_RELOC_XTENSA_SLOT0_ALT, BFD_RELOC_XTENSA_SLOT1_ALT, BFD_RELOC_XTENSA_SLOT2_ALT, BFD_RELOC_XTENSA_SLOT3_ALT, BFD_RELOC_XTENSA_SLOT4_ALT, BFD_RELOC_XTENSA_SLOT5_ALT, BFD_RELOC_XTENSA_SLOT6_ALT, BFD_RELOC_XTENSA_SLOT7_ALT, BFD_RELOC_XTENSA_SLOT8_ALT, BFD_RELOC_XTENSA_SLOT9_ALT, BFD_RELOC_XTENSA_SLOT10_ALT, BFD_RELOC_XTENSA_SLOT11_ALT, BFD_RELOC_XTENSA_SLOT12_ALT, BFD_RELOC_XTENSA_SLOT13_ALT, BFD_RELOC_XTENSA_SLOT14_ALT): Add new relocations. * Makefile.am (xtensa-isa.lo, xtensa-modules.lo): Update dependencies. * Makefile.in: Regenerate. * bfd-in2.h: Likewise. * libbfd.h: Likewise. gas ChangeLog * config/tc-xtensa.c (absolute_literals_supported): New global flag. (UNREACHABLE_MAX_WIDTH): Define. (XTENSA_FETCH_WIDTH): Delete. (cur_vinsn, xtensa_fetch_width, xt_saved_debug_type, past_xtensa_end, prefer_const16, prefer_l32r): New global variables. (LIT4_SECTION_NAME): Define. (lit4_state struct): Add lit4_seg_name and lit4_seg fields. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. (frag_flags struct): New. (xtensa_block_info struct): Move from tc-xtensa.h. Add flags field. (subseg_map struct): Add cur_total_freq and cur_target_freq fields. (bitfield, bit_is_set, set_bit, clear_bit): Define. (MAX_FORMATS): Define. (op_placement_info struct, op_placement_table): New. (O_pltrel, O_hi16, O_lo16): Define. (directiveE enum): Rename directive_generics to directive_transform. Delete directive_relax. Add directive_schedule, directive_absolute_literals, and directive_last_directive. (directive_info): Rename "generics" to "transform". Delete "relax". Add "schedule" and "absolute-literals". (directive_state): Adjust entries to match changes in directive_info. (xtensa_relax_statesE, RELAX_IMMED_MAXSTEPS): Move to tc-xtensa.h. (xtensa_const16_opcode, xtensa_movi_opcode, xtensa_movi_n_opcode, xtensa_l32r_opcode, xtensa_nop_opcode, xtensa_rsr_lcount_opcode): New. (xtensa_j_opcode, xtensa_rsr_opcode): Delete. (align_only_targets, software_a0_b_retw_interlock, software_avoid_b_j_loop_end, maybe_has_b_j_loop_end, software_avoid_short_loop, software_avoid_close_loop_end, software_avoid_all_short_loops, specific_opcode): Delete. (warn_unaligned_branch_targets): New. (workaround_a0_b_retw, workaround_b_j_loop_end, workaround_short_loop, workaround_close_loop_end, workaround_all_short_loops): Default FALSE. (option_[no_]link_relax, option_[no_]transform, option_[no_]absolute_literals, option_warn_unaligned_targets, option_prefer_l32r, option_prefer_const16, option_target_hardware): New enum values. (option_[no_]align_only_targets, option_literal_section_name, option_text_section_name, option_data_section_name, option_bss_section_name, option_eb, option_el): Delete. (md_longopts): Add entries for: [no-]transform, [no-]absolute-literals, warn-unaligned-targets, prefer-l32r, prefer-const16, [no-]link-relax, and target-hardware. Delete entries for [no-]target-align-only, literal-section-name, text-section-name, data-section-name, and bss-section-name. (md_parse_option): Handle new options and remove old ones. Accept but ignore [no-]density options. Warn for [no-]generics and [no-]relax and treat them as [no-]transform. (md_show_usage): Add new options and remove old ones. (xtensa_setup_hw_workarounds): New. (md_pseudo_table): Change "word" entry to use xtensa_elf_cons. Add "long", "short", "loc" and "frequency" entries. (use_generics): Rename to ... (use_transform): ... this function. Add past_xtensa_end check. (use_longcalls): Add past_xtensa_end check. (code_density_available, can_relax): Delete. (do_align_targets): New. (get_directive): Accept dashes in directive names. Warn about [no-]generics and [no-]relax directives and treat them as [no-]transform. (xtensa_begin_directive): Call md_flush_pending_output only for some directives. Check for directives inside instruction bundles. Warn about deprecated ".begin literal" usage. Warn and ignore [no-]density directives. Handle new directives. Check generating_literals flag for literal_prefix. (xtensa_end_directive): Check for directives inside instruction bundles. Warn and ignore [no-]density directives. Handle new directives. Call xtensa_set_frag_assembly_state. (xtensa_loc_directive_seen, xtensa_dwarf2_directive_loc, xtensa_dwarf2_emit_insn): New. (xtensa_literal_position): Call md_flush_pending_output. Do not check use_literal_section flag. (xtensa_literal_pseudo): Call md_flush_pending_output. Handle absolute literals. Use xtensa_elf_cons to parse the expression. (xtensa_literal_prefix): Do not check use_literal_section. Support ".lit4" sections for absolute literals. Change prefix convention to replace ".text" (or ".t" in a linkonce section). No need to call subseg_set. (xtensa_frequency_pseudo, xtensa_elf_cons, xtensa_elf_suffix): New. (expression_end): Handle closing braces and colons. (PLT_SUFFIX, plt_suffix): Delete. (expression_maybe_register): Use new xtensa-isa.h functions. Use xtensa_elf_suffix instead of checking for plt suffix, and handle O_lo16 and O_hi16 expressions as well. (tokenize_arguments): Handle closing braces and colons. (parse_arguments): Use new xtensa-isa.h functions. Handle "invisible" operands and paired register syntax. (get_invisible_operands): New. (xg_translate_sysreg_op): Handle new Xtensa LX RSR/WSR/XSR syntax. Use new xtensa-isa.h functions. (xtensa_translate_old_userreg_ops, xtensa_translate_zero_immed): New. (xg_translate_idioms): Check if inside bundle. Use use_transform. Handle new Xtensa LX RSR/WSR/XSR syntax. Remove code to widen density instructions. Use xtensa_translate_zero_immed. (operand_is_immed, operand_is_pcrel_label): Delete. (get_relaxable_immed): Use new xtensa-isa.h functions. (get_opcode_from_buf): Add slot parameter. Use new xtensa-isa.h functions. (xtensa_print_insn_table, print_vliw_insn): New. (is_direct_call_opcode): Use new xtensa-isa.h functions. (is_call_opcode, is_loop_opcode, is_conditional_branch_opcode, is_branch_or_jump_opcode): Delete. (is_movi_opcode, decode_reloc, encode_reloc, encode_alt_reloc): New. (opnum_to_reloc, reloc_to_opnum): Delete. (xtensa_insnbuf_set_operand, xtensa_insnbuf_get_operand): Use new xtensa-isa.h functions. Operate on one slot of an instruction. (xtensa_insnbuf_set_immediate_field, is_negatable_branch, xg_get_insn_size): Delete. (xg_get_build_instr_size): Use xg_get_single_size. (xg_is_narrow_insn, xg_is_single_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_get_max_narrow_insn_size): Delete. (xg_get_max_insn_widen_size, xg_get_max_insn_widen_literal_size, xg_is_relaxable_insn): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_build_to_insn): Record the loc field. Handle OP_OPERAND_HI16U and OP_OPERAND_LOW16U. Check xg_valid_literal_expression. (xg_expand_to_stack, xg_expand_narrow): Update calls to xg_build_widen_table. Use xg_get_single_size. (xg_immeds_fit): Use new xtensa-isa.h functions. Update call to xg_check_operand. (xg_symbolic_immeds_fit): Likewise. Also handle O_lo16 and O_hi16, and treat weak symbols conservatively. (xg_check_operand): Use new xtensa-isa.h functions. (is_dnrange): Delete. (xg_assembly_relax): Inline previous calls to tinsn_copy. (xg_finish_frag): Specify separate relax states for the frag and slot0. (is_branch_jmp_to_next, xg_add_branch_and_loop_targets): Use new xtensa-isa.h functions. (xg_instruction_matches_option_term, xg_instruction_matches_or_options, xg_instruction_matches_options): New. (xg_instruction_matches_rule): Handle O_register expressions. Call xg_instruction_matches_options. (transition_rule_cmp): New. (xg_instruction_match): Update call to xg_build_simplify_table. (xg_build_token_insn): Record loc fields. (xg_simplify_insn): Check is_specific_opcode field and density_supported flag. (xg_expand_assembly_insn): Skip checking code_density_available. Use new xtensa-isa.h functions. Call use_transform instead of can_relax. (xg_assemble_literal): Add error handling for O_big. Call record_alignment. Handle O_pltrel. (xg_valid_literal_expression): New. (xg_assemble_literal_space): Add slot parameter. Remove call to set_expr_symbol_offset. Add call to record_alignment. Update call to xg_finish_frag. (xg_emit_insn): Delete. (xg_emit_insn_to_buf): Add format parameter. Update calls to xg_add_opcode_fix and xtensa_insnbuf_to_chars. (xg_add_opcode_fix): Change opcode parameter to tinsn and add format and slot parameters. Handle new "alternate" relocations for absolute literals and CONST16 instructions. Check for bad uses of O_lo16 and O_hi16. Use new xtensa-isa.h functions. (xg_assemble_tokens): Delete. (is_register_writer): Use new xtensa-isa.h functions. (is_bad_loopend_opcode): Check for xtensa_rsr_lcount_opcode instead of old-style RSR from LCOUNT. (next_frag_opcode): Delete. (next_frag_opcode_is_loop, next_frag_format_size, frag_format_size, update_next_frag_state): New. (update_next_frag_nop_state): Delete. (next_frag_pre_opcode_bytes): Use next_frag_opcode_is_loop. (xtensa_mark_literal_pool_location): Check use_literal_section flag and the state of the absolute-literals directive. Add calls to record_alignment and xtensa_set_frag_assembly_state. Call xtensa_switch_to_non_abs_literal_fragment instead of xtensa_switch_to_literal_fragment. (build_nop): New. (assemble_nop): Use build_nop. Update call to xtensa_insnbuf_to_chars. (get_expanded_loop_offset): Change check for undefined opcode to an assertion. (xtensa_set_frag_assembly_state, relaxable_section, xtensa_find_unmarked_state_frags, xtensa_find_unaligned_branch_targets, xtensa_find_unaligned_loops, xg_apply_tentative_value): New. (md_begin): Update call to xtensa_isa_init. Initialize linkrelax to 1. Set lit4_seg_name. Call xg_init_vinsn. Initialize new global opcodes. Call init_op_placement_info_table and xtensa_set_frag_assembly_state. (xtensa_init_fix_data): New. (xtensa_frob_label): Reset label symbol to the current frag. Check do_align_targets and generating_literals flag. Propagate frequency info to new alignment frag. Call xtensa_set_frag_assembly_state. (xtensa_unrecognized_line): New. (xtensa_flush_pending_output): Check if inside a bundle. Add a call to xtensa_set_frag_assembly_state. (error_reset_cur_vinsn): New. (md_assemble): Remove check for literal frag. Remove call to istack_init. Call use_transform instead of use_generics. Parse explicit instruction format specifiers. Move code for a0_b_retw_interlock workaround to xg_assemble_vliw_tokens. Call error_reset_cur_vinsn on errors. Add call to get_invisible_operands. Add dwarf2_where call. Remote automatic alignment for ENTRY instructions. Move call to xtensa_clear_insn_labels to the end. Rearrange to handle bundles. (xtensa_cons_fix_new): Delete. (xtensa_handle_align): New. (xtensa_frag_init): Call xtensa_set_frag_assembly_state. Remove assignment to is_no_density field. (md_pcrel_from): Use new xtensa-isa.h functions. Use decode_reloc instead of reloc_to_opnum. Handle "alternate" relocations. (xtensa_force_relocation, xtensa_check_inside_bundle, xtensa_elf_section_change_hook): New. (xtensa_symbol_new_hook): Delete. (xtensa_fix_adjustable): Check for difference of symbols with an offset. Check for external and weak symbols. (md_apply_fix3): Remove cases for XTENSA_OP{0,1,2} relocs. (md_estimate_size_before_relax): Return expansion for the first slot. (tc_gen_reloc): Handle difference of symbols by producing XTENSA_DIFF{8,16,32} relocs and by writing the value of the difference into the output. Handle new XTENSA_SLOT*_OP relocs by storing the tentative values into the output when linkrelax is set. (XTENSA_PROP_SEC_NAME): Define. (xtensa_post_relax_hook): Call xtensa_find_unmarked_state_frags. Create literal tables only if using literal sections. Create new property tables instead of old instruction tables. Check for unaligned branch targets and loops. (finish_vinsn, find_vinsn_conflicts, check_t1_t2_reads_and_writes, new_resource_table, clear_resource_table, resize_resource_table, resources_available, reserve_resources, release_resources, opcode_funcUnit_use_unit, opcode_funcUnit_use_stage, resources_conflict, xg_find_narrowest_format, relaxation_requirements, bundle_single_op, emit_single_op, xg_assemble_vliw_tokens): New. (xtensa_end): Call xtensa_flush_pending_output. Set past_xtensa_end flag. Update checks for workaround options. Call xtensa_mark_narrow_branches and xtensa_mark_zcl_first_insns. (xtensa_cleanup_align_frags): Add special case for branch targets. Check for and mark unreachable frags. (xtensa_fix_target_frags): Remove use of align_only_targets flag. Use RELAX_LOOP_END_BYTES in special case for negatable branch at the end of a zero-overhead loop body. (frag_can_negate_branch): Handle instructions with multiple slots. Use new xtensa-isa.h functions (xtensa_mark_narrow_branches, is_narrow_branch_guaranteed_in_range, xtensa_mark_zcl_first_insns): New. (xtensa_fix_a0_b_retw_frags, xtensa_fix_b_j_loop_end_frags): Error if transformations are disabled. (next_instrs_are_b_retw): Use new xtensa-isa.h functions. Handle multislot instructions. (xtensa_fix_close_loop_end_frags, xtensa_fix_short_loop_frags): Likewise. Also error if transformations are disabled. (unrelaxed_frag_max_size): New. (unrelaxed_frag_min_insn_count, unrelax_frag_has_b_j): Use new xtensa-isa.h functions. (xtensa_sanity_check, is_empty_loop, is_local_forward_loop): Use xtensa_opcode_is_loop instead of is_loop_opcode. (get_text_align_power): Replace as_fatal with assertion. (get_text_align_fill_size): Iterate instead of using modulus when use_nops is false. (get_noop_aligned_address): Assert that this is for a machine-dependent RELAX_ALIGN_NEXT_OPCODE frag. Use next_frag_opcode_is_loop, xg_get_single_size, and frag_format_size. (get_widen_aligned_address): Rename to ... (get_aligned_diff): ... this function. Add max_diff parameter. Remove handling of rs_align/rs_align_code frags. Use next_frag_format_size, get_text_align_power, get_text_align_fill_size, next_frag_opcode_is_loop, and xg_get_single_size. Compute max_diff and pass it back to caller. (xtensa_relax_frag): Use relax_frag_loop_align. Add code for new RELAX_SLOTS, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_FILL_NOP, and RELAX_UNREACHABLE frag types. Check relax_seen. (relax_frag_text_align): Rename to ... (relax_frag_loop_align): ... this function. Assume loops can only be in the first slot of an instruction. (relax_frag_add_nop): Use assemble_nop instead of constructing an OR instruction. Remove call to frag_wane. (relax_frag_narrow): Rename to ... (relax_frag_for_align): ... this function. Extend to handle RELAX_FILL_NOP and RELAX_UNREACHABLE, as well as RELAX_SLOTS with RELAX_NARROW for the first slot. (find_address_of_next_align_frag, bytes_to_stretch): New. (future_alignment_required): Use find_address_of_next_align_frag and bytes_to_stretch. Look ahead to subsequent frags to make smarter alignment decisions. (relax_frag_immed): Add format, slot, and estimate_only parameters. Check if transformations are enabled for b_j_loop_end workaround. Use new xtensa-isa.h functions and handle multislot instructions. Update call to xg_assembly_relax. (md_convert_frag): Handle new RELAX_SLOTS, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, RELAX_MAYBE_DESIRE_ALIGN, and RELAX_FILL_NOP frag types. (convert_frag_narrow): Add segP, format and slot parameters. Call convert_frag_immed for branch instructions. Adjust calls to tinsn_from_chars, tinsn_immed_from_frag, and xg_emit_insn_to_buf. Use xg_get_single_size and xg_get_single_format. (convert_frag_fill_nop): New. (convert_frag_immed): Add format and slot parameters. Handle multislot instructions and use new xtensa-isa.h functions. Update calls to tinsn_immed_from_frag and xg_assembly_relax. Check if transformations enabled for b_j_loop_end workaround. Use build_nop instead of assemble_nop. Check is_specific_opcode flag. Check for unreachable frags. Use xg_get_single_size. Handle O_pltrel. (fix_new_exp_in_seg): Remove check for old plt flag. (convert_frag_immed_finish_loop): Update calls to tinsn_from_chars and xtensa_insnbuf_to_chars. Call tinsn_immed_from_frag. Change check for loop opcode to an assertion. Mark all frags up to the end of the loop as not transformable. (get_last_insn_flags, set_last_insn_flags): Use get_subseg_info. (get_subseg_info): New. (xtensa_move_literals): Call xtensa_set_frag_assembly_state. Add null check for dest_seg. (xtensa_switch_to_literal_fragment): Rewrite to handle absolute literals and use xtensa_switch_to_non_abs_literal_fragment otherwise. (xtensa_switch_to_non_abs_literal_fragment): New. (cache_literal_section): Add is_code parameter and pass it through to retrieve_literal_seg. (retrieve_literal_seg): Add is_code parameter and use it to set the flags on the literal section. Handle case where head parameter is 0. (get_frag_is_no_transform, set_frag_is_specific_opcode, set_frag_is_no_transform): New. (xtensa_create_property_segments): Add end_property_function parameter and pass it through to add_xt_block_frags. Call bfd_get_section_flags and skip SEC_DEBUGGING and !SEC_ALLOC sections. (xtensa_create_xproperty_segments, section_has_xproperty): New. (add_xt_block_frags): Add end_property_function parameter and call it if it is non-zero. Call xtensa_frag_flags_init. (xtensa_frag_flags_is_empty, xtensa_frag_flags_init, get_frag_property_flags, frag_flags_to_number, xtensa_frag_flags_combinable, xt_block_aligned_size, xtensa_xt_block_combine, add_xt_prop_frags, init_op_placement_info_table, opcode_fits_format_slot, xg_get_single_size, xg_get_single_format): New. (istack_push): Inline call to tinsn_copy. (tinsn_copy): Delete. (tinsn_has_invalid_symbolic_operands): Handle O_hi16 and O_lo16 and CONST16 opcodes. Handle O_big, O_illegal, and O_absent. (tinsn_has_complex_operands): Handle O_hi16 and O_lo16. (tinsn_to_insnbuf): Use xg_get_single_format and new xtensa-isa.h functions. Handle invisible operands. (tinsn_to_slotbuf): New. (tinsn_check_arguments): Use new xtensa-isa.h functions. (tinsn_from_chars): Add slot parameter. Rewrite using xg_init_vinsn, vinsn_from_chars, and xg_free_vinsn. (tinsn_from_insnbuf): New. (tinsn_immed_from_frag): Add slot parameter and handle multislot instructions. Handle symbol differences. (get_num_stack_text_bytes): Use xg_get_single_size. (xg_init_vinsn, xg_clear_vinsn, vinsn_has_specific_opcodes, xg_free_vinsn, vinsn_to_insnbuf, vinsn_from_chars, expr_is_register, get_expr_register, set_expr_symbol_offset_diff): New. * config/tc-xtensa.h (MAX_SLOTS): Define. (xtensa_relax_statesE): Move from tc-xtensa.c. Add RELAX_CHECK_ALIGN_NEXT_OPCODE, RELAX_MAYBE_DESIRE_ALIGN, RELAX_SLOTS, RELAX_FILL_NOP, RELAX_UNREACHABLE, RELAX_MAYBE_UNREACHABLE, and RELAX_NONE types. (RELAX_IMMED_MAXSTEPS): Move from tc-xtensa.c. (xtensa_frag_type struct): Add is_assembly_state_set, use_absolute_literals, relax_seen, is_unreachable, is_specific_opcode, is_align, is_text_align, alignment, and is_first_loop_insn fields. Replace is_generics and is_relax fields by is_no_transform field. Delete is_text and is_longcalls fields. Change text_expansion and literal_expansion to arrays of MAX_SLOTS entries. Add arrays of per-slot information: literal_frags, slot_subtypes, slot_symbols, slot_sub_symbols, and slot_offsets. Add fr_prev field. (xtensa_fix_data struct): New. (xtensa_symfield_type struct): Delete plt field. (xtensa_block_info struct): Move definition to tc-xtensa.h. Add forward declaration here. (xt_section_type enum): Delete xt_insn_sec. Add xt_prop_sec. (XTENSA_SECTION_RENAME): Undefine. (TC_FIX_TYPE, TC_INIT_FIX_DATA, TC_FORCE_RELOCATION, NO_PSEUDO_DOT, tc_unrecognized_line, md_do_align, md_elf_section_change_hook, HANDLE_ALIGN, TC_LINKRELAX_FIXUP, SUB_SEGMENT_ALIGN): Define. (TC_CONS_FIX_NEW, tc_symbol_new_hook): Delete. (unit_num_copies_func, opcode_num_units_func, opcode_funcUnit_use_unit_func, opcode_funcUnit_use_stage_func): New. (resource_table struct): New. * config/xtensa-istack.h (MAX_INSN_ARGS): Increase from 6 to 10. (TInsn struct): Add keep_wide, loc, fixup, record_fix, subtype, literal_space, symbol, sub_symbol, offset, and literal_frag fields. (tinsn_copy): Delete prototype. (vliw_insn struct): New. * config/xtensa-relax.c (insn_pattern_struct): Add options field. (widen_spec_list): Add option conditions for density and boolean instructions. Add expansions using CONST16 and conditions for using CONST16 vs. L32R. Use new Xtensa LX RSR/WSR syntax. Add entries for predicted branches. (simplify_spec_list): Add option conditions for density instructions. Add entry for NOP instruction. (append_transition): Add cmp function pointer parameter and use it to insert the new entry in order. (operand_function_LOW16U, operand_function_HI16U): New. (xg_has_userdef_op_fn, xg_apply_userdef_op_fn): Handle OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (enter_opname, split_string): Use xstrdup instead of strdup. (init_insn_pattern): Initialize new options field. (clear_req_or_option_list, clear_req_option_list, clone_req_or_option_list, clone_req_option_list, parse_option_cond): New. (parse_insn_pattern): Parse option conditions. (transition_applies): New. (build_transition): Use new xtensa-isa.h functions. Fix incorrectly swapped last arguments in calls to append_constant_value_condition. Call clone_req_option_list. Add warning about invalid opcode. Handle LOW16U and HI16U function names. (build_transition_table): Add cmp parameter and use it in calls to append_transition. Use new xtensa-isa.h functions. Check transition_applies before adding entries. (xg_build_widen_table, xg_build_simplify_table): Add cmp parameter and pass it through to build_transition_table. * config/xtensa-relax.h (ReqOrOptionList, ReqOrOption, ReqOptionList, ReqOption, transition_cmp_fn): New types. (OpType enum): Add OP_OPERAND_LOW16U and OP_OPERAND_HI16U. (transition_rule struct): Add options field. * doc/as.texinfo (Overview): Update Xtensa options. * doc/c-xtensa.texi (Xtensa Options): Delete --[no-]density, --[no-]relax, and --[no-]generics options. Update descriptions of --text-section-literals and --[no-]longcalls. Add --[no-]absolute-literals and --[no-]transform. (Xtensa Syntax): Add description of syntax for FLIX instructions. Remove use of "generic" and "specific" terminology for opcodes. (Xtensa Registers): Generalize the syntax description to include user-defined register files. (Xtensa Automatic Alignment): Update. (Xtensa Branch Relaxation): Mention limitation of unconditional jumps. (Xtensa Call Relaxation): Linker can now remove most of the overhead. (Xtensa Directives): Remove confusing rules about precedence. (Density Directive, Relax Directive): Delete. (Schedule Directive): New. (Generics Directive): Rename to ... (Transform Directive): ... this node. (Literal Directive): Update for absolute literals. Missing literal_position directive is now an error. (Literal Position Directive): Update for absolute literals. (Freeregs Directive): Delete. (Absolute Literals Directive): New. (Frame Directive): Minor editing. * Makefile.am (DEPTC_xtensa_elf, DEPOBJ_xtensa_elf, DEP_xtensa_elf): Update dependencies. * Makefile.in: Regenerate. gas/testsuite ChangeLog * gas/xtensa/all.exp: Adjust expected error message for j_too_far. Change entry_align test to expect an error. * gas/xtensa/entry_misalign2.s: Use no-transform instead of no-generics directives. include ChangeLog * xtensa-config.h (XSHAL_USE_ABSOLUTE_LITERALS, XCHAL_HAVE_PREDICTED_BRANCHES, XCHAL_INST_FETCH_WIDTH): New. (XCHAL_EXTRA_SA_SIZE, XCHAL_EXTRA_SA_ALIGN): Delete. * xtensa-isa-internal.h (ISA_INTERFACE_VERSION): Delete. (config_sturct struct): Delete. (XTENSA_OPERAND_IS_REGISTER, XTENSA_OPERAND_IS_PCRELATIVE, XTENSA_OPERAND_IS_INVISIBLE, XTENSA_OPERAND_IS_UNKNOWN, XTENSA_OPCODE_IS_BRANCH, XTENSA_OPCODE_IS_JUMP, XTENSA_OPCODE_IS_LOOP, XTENSA_OPCODE_IS_CALL, XTENSA_STATE_IS_EXPORTED, XTENSA_INTERFACE_HAS_SIDE_EFFECT): Define. (xtensa_format_encode_fn, xtensa_get_slot_fn, xtensa_set_slot_fn): New. (xtensa_insn_decode_fn): Rename to ... (xtensa_opcode_decode_fn): ... this. (xtensa_immed_decode_fn, xtensa_immed_encode_fn, xtensa_do_reloc_fn, xtensa_undo_reloc_fn): Update. (xtensa_encoding_template_fn): Delete. (xtensa_opcode_encode_fn, xtensa_format_decode_fn, xtensa_length_decode_fn): New. (xtensa_format_internal, xtensa_slot_internal): New types. (xtensa_operand_internal): Delete operand_kind, inout, isPCRelative, get_field, and set_field fields. Add name, field_id, regfile, num_regs, and flags fields. (xtensa_arg_internal): New type. (xtensa_iclass_internal): Change operands field to array of xtensa_arg_internal. Add num_stateOperands, stateOperands, num_interfaceOperands, and interfaceOperands fields. (xtensa_opcode_internal): Delete length, template, and iclass fields. Add iclass_id, flags, encode_fns, num_funcUnit_uses, and funcUnit_uses. (opname_lookup_entry): Delete. (xtensa_regfile_internal, xtensa_interface_internal, xtensa_funcUnit_internal, xtensa_state_internal, xtensa_sysreg_internal, xtensa_lookup_entry): New. (xtensa_isa_internal): Replace opcode_table field with opcodes field. Change type of opname_lookup_table. Delete num_modules, module_opcode_base, module_decode_fn, config, and has_density fields. Add num_formats, formats, format_decode_fn, length_decode_fn, num_slots, slots, num_fields, num_operands, operands, num_iclasses, iclasses, num_regfiles, regfiles, num_states, states, state_lookup_table, num_sysregs, sysregs, sysreg_lookup_table, max_sysreg_num, sysreg_table, num_interfaces, interfaces, interface_lookup_table, num_funcUnits, funcUnits and funcUnit_lookup_table fields. (xtensa_isa_module, xtensa_isa_modules): Delete. (xtensa_isa_name_compare): New prototype. (xtisa_errno, xtisa_error_msg): New. * xtensa-isa.h (XTENSA_ISA_VERSION): Define. (xtensa_isa): Change type. (xtensa_operand): Delete. (xtensa_format, xtensa_regfile, xtensa_state, xtensa_sysreg, xtensa_interface, xtensa_funcUnit, xtensa_isa_status, xtensa_funcUnit_use): New types. (libisa_module_specifier): Delete. (xtensa_isa_errno, xtensa_isa_error_msg): New prototypes. (xtensa_insnbuf_free, xtensa_insnbuf_to_chars, xtensa_insnbuf_from_chars): Update prototypes. (xtensa_load_isa, xtensa_extend_isa, xtensa_default_isa, xtensa_insn_maxlength, xtensa_num_opcodes, xtensa_decode_insn, xtensa_encode_insn, xtensa_insn_length, xtensa_insn_length_from_first_byte, xtensa_num_operands, xtensa_operand_kind, xtensa_encode_result, xtensa_operand_isPCRelative): Delete. (xtensa_isa_init, xtensa_operand_inout, xtensa_operand_get_field, xtensa_operand_set_field, xtensa_operand_encode, xtensa_operand_decode, xtensa_operand_do_reloc, xtensa_operand_undo_reloc): Update prototypes. (xtensa_isa_maxlength, xtensa_isa_length_from_chars, xtensa_isa_num_pipe_stages, xtensa_isa_num_formats, xtensa_isa_num_opcodes, xtensa_isa_num_regfiles, xtensa_isa_num_states, xtensa_isa_num_sysregs, xtensa_isa_num_interfaces, xtensa_isa_num_funcUnits, xtensa_format_name, xtensa_format_lookup, xtensa_format_decode, xtensa_format_encode, xtensa_format_length, xtensa_format_num_slots, xtensa_format_slot_nop_opcode, xtensa_format_get_slot, xtensa_format_set_slot, xtensa_opcode_decode, xtensa_opcode_encode, xtensa_opcode_is_branch, xtensa_opcode_is_jump, xtensa_opcode_is_loop, xtensa_opcode_is_call, xtensa_opcode_num_operands, xtensa_opcode_num_stateOperands, xtensa_opcode_num_interfaceOperands, xtensa_opcode_num_funcUnit_uses, xtensa_opcode_funcUnit_use, xtensa_operand_name, xtensa_operand_is_visible, xtensa_operand_is_register, xtensa_operand_regfile, xtensa_operand_num_regs, xtensa_operand_is_known_reg, xtensa_operand_is_PCrelative, xtensa_stateOperand_state, xtensa_stateOperand_inout, xtensa_interfaceOperand_interface, xtensa_regfile_lookup, xtensa_regfile_lookup_shortname, xtensa_regfile_name, xtensa_regfile_shortname, xtensa_regfile_view_parent, xtensa_regfile_num_bits, xtensa_regfile_num_entries, xtensa_state_lookup, xtensa_state_name, xtensa_state_num_bits, xtensa_state_is_exported, xtensa_sysreg_lookup, xtensa_sysreg_lookup_name, xtensa_sysreg_name, xtensa_sysreg_number, xtensa_sysreg_is_user, xtensa_interface_lookup, xtensa_interface_name, xtensa_interface_num_bits, xtensa_interface_inout, xtensa_interface_has_side_effect, xtensa_funcUnit_lookup, xtensa_funcUnit_name, xtensa_funcUnit_num_copies): New prototypes. * elf/xtensa.h (R_XTENSA_DIFF8, R_XTENSA_DIFF16, R_XTENSA_DIFF32, R_XTENSA_SLOT*_OP, R_XTENSA_SLOT*_ALT): New relocations. (XTENSA_PROP_SEC_NAME): Define. (property_table_entry): Add flags field. (XTENSA_PROP_*, GET_XTENSA_PROP_*, SET_XTENSA_PROP_*): Define. ld ChangeLog * ld.texinfo (Xtensa): Describe new linker relaxation to optimize assembler-generated longcall sequences. Describe new --size-opt option. * emulparams/elf32xtensa.sh (OTHER_SECTIONS): Add .xt.prop section. * emultempl/xtensaelf.em (remove_section, replace_insn_sec_with_prop_sec, replace_instruction_table_sections, elf_xtensa_after_open): New. (OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, OPTION_NO_LITERAL_MOVEMENT): Define. (elf32xtensa_size_opt, elf32xtensa_no_literal_movement): New globals. (PARSE_AND_LIST_LONGOPTS): Add size-opt and [no-]literal-movement. (PARSE_AND_LIST_OPTIONS): Add --size-opt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_OPT_SIZEOPT, OPTION_LITERAL_MOVEMENT, and OPTION_NO_LITERAL_MOVEMENT. (LDEMUL_AFTER_OPEN): Set to elf_xtensa_after_open. * scripttempl/elfxtensa.sc: Update with changes from elf.sc. * Makefile.am (eelf32xtensa.c): Update dependencies. * Makefile.in: Regenerate. ld/testsuite ChangeLog * ld-xtensa/lcall1.s: Use .literal directive. * ld-xtensa/lcall2.s: Align function entry. * ld-xtensa/coalesce2.s: Likewise. opcodes ChangeLog * xtensa-dis.c (state_names): Delete. (fetch_data): Use xtensa_isa_maxlength. (print_xtensa_operand): Replace operand parameter with opcode/operand pair. Remove print_sr_name parameter. Use new xtensa-isa.h functions. (print_insn_xtensa): Use new xtensa-isa.h functions. Handle multislot instruction bundles. Use xmalloc instead of malloc.
2004-10-08 02:22:15 +02:00
LDEMUL_AFTER_OPEN=elf_xtensa_after_open
2003-04-01 17:50:31 +02:00
LDEMUL_CHOOSE_TARGET=elf_xtensa_choose_target
LDEMUL_BEFORE_ALLOCATION=elf_xtensa_before_allocation