binutils-gdb/gas/dw2gencfi.h

186 lines
4.9 KiB
C
Raw Normal View History

/* dw2gencfi.h - Support for generating Dwarf2 CFI information.
2016-01-01 12:25:12 +01:00
Copyright (C) 2003-2016 Free Software Foundation, Inc.
Contributed by Michal Ludvig <mludvig@suse.cz>
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
2007-07-03 13:01:12 +02:00
the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS 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 GAS; see the file COPYING. If not, write to the Free
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#ifndef DW2GENCFI_H
#define DW2GENCFI_H
bfd * Makefile.am (dwarf2.lo): Use dwarf2.h, not elf/dwarf2.h. (elf-eh-frame.lo): Likewise. (elf32-bfin.lo): Likewise. (elf32-frv.lo): Likewise. (elf32-xc16x.lo): Likewise. * Makefile.in: Rebuild. * dwarf2.c: Included dwarf.h, not elf/dwarf2.h. * elf-eh-frame.c: Likewise. * elf32-bfin.c: Likewise. * elf32-frv.c: Likewise. * elf32-xc16x.c: Likewise. binutils * Makefile.am (dwarf.o): Refer to dwarf2.h, not elf/dwarf2.h. * Makefile.in: Rebuild. * dwarf.c: Include dwarf2.h, not elf/dwarf2.h. gas * Makefile.am (DEPTC_alpha_ecoff): Refer to dwarf2.h, not elf/dwarf2.h. (DEPTC_alpha_elf): Likewise. (DEPTC_alpha_evax): Likewise. (DEPTC_arm_elf): Likewise. (DEPTC_hppa_elf): Likewise. (DEPTC_i386_aout): Likewise. (DEPTC_i386_coff): Likewise. (DEPTC_i386_elf): Likewise. (DEPTC_m68k_aout): Likewise. (DEPTC_m68k_coff): Likewise. (DEPTC_m68k_elf): Likewise. (DEPTC_mips_coff): Likewise. (DEPTC_mips_ecoff): Likewise. (DEPTC_mips_elf): Likewise. (DEPTC_ppc_coff): Likewise. (DEPTC_ppc_elf): Likewise. (DEPTC_s390_elf): Likewise. (DEPTC_sh_coff): Likewise. (DEPTC_sh_elf): Likewise. (DEPTC_sh64_elf): Likewise. (DEPTC_sparc_aout): Likewise. (DEPTC_sparc_coff): Likewise. (DEPTC_sparc_elf): Likewise. (as.o): Likewise. (dwarf2dbg.o): Likewise. (dw2gencfi.o): Likewise. (ehopt.o): Likewise. (read.o): Likewise. * Makefile.in: Rebuild. * dw2gencfi.h: Include dwarf2.h, not elf/dwarf2.h. * dwarf2dbg.c: Likewise. * ehopt.c: Likewise. gdb * dwarf2-frame.c: Include dwarf2.h, not elf/dwarf2.h. * dwarf2expr.c: Likewise. * dwarf2loc.c: Likewise. * dwarf2read.c: Likewise. * sh-tdep.c: Likewise. * xtensa-tdep.c: Likewise. include * dwarf2.h: New file, moved from elf/. include/elf * dwarf2.h: Move to `..'.
2009-07-10 17:27:04 +02:00
#include "dwarf2.h"
struct symbol;
extern const pseudo_typeS cfi_pseudo_table[];
/* cfi_finish() is called at the end of file. It will complain if
the last CFI wasn't properly closed by .cfi_endproc. */
extern void cfi_finish (void);
/* Entry points for backends to add unwind information. */
extern void cfi_new_fde (struct symbol *);
extern void cfi_end_fde (struct symbol *);
extern void cfi_set_return_column (unsigned);
Compact EH Support The specification for the Compact EH format is available at: https://github.com/MentorEmbedded/cxx-abi/blob/master/MIPSCompactEH.pdf 2015-05-28 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> Paul Brook <paul@codesourcery.com> bfd/ * bfd-in2.h: Regenerated. * elf-bfd.h (DWARF2_EH_HDR, COMPACT_EH_HDR): Define. (COMPACT_EH_CANT_UNWIND_OPCODE): Define. (dwarf_eh_frame_hdr_info): Move dwarf-specific fields from eh_frame_hdr_info. (compact_eh_frame_hdr_info): Declare. (eh_frame_hdr_info): Redeclare with union for dwarf-specific fields and compact-eh fields. (elf_backend_data): Add cant_unwind_opcode and compact_eh_encoding. (bfd_elf_section_data): Add eh_frame_entry_field. (elf_section_eh_frame_entry): Define. (bfd_elf_parse_eh_frame_entries): Declare. (_bfd_elf_parse_eh_frame_entry): Declare. (_bfd_elf_end_eh_frame_parsing): Declare. (_bfd_elf_write_section_eh_frame_entry): Declare. (_bfd_elf_eh_frame_entry_present): Declare. (_bfd_elf_section_for_symbol): Declare. * elf-eh-frame.c (bfd_elf_discard_eh_frame_entry): New function. (bfd_elf_record_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame): Update hdr_info field references. (cmp_eh_frame_hdr): New function. (add_eh_frame_hdr_terminator): New function. (_bfd_elf_end_eh_frame_parsing): New function. (find_merged_cie): Update hdr_info field references. (_bfd_elf_discard_section_eh_frame): Likewise. (_bfd_elf_discard_section_eh_frame_hdr): Add Compact EH support. (_bfd_elf_eh_frame_entry_present): New function. (_bfd_elf_maybe_strip_eh_frame_hdr): Add Compact EH support. (_bfd_elf_write_section_eh_frame_entry): New function. (_bfd_elf_write_section_eh_frame): Update hdr_info field references. (_bfd_elf_fixup_eh_frame_hdr): New function. (write_compact_eh_frame_hdr): New function. (write_dwarf_eh_frame_hdr): New function. (_bfd_elf_write_section_eh_frame_hdr): Add Compact EH support. * elflink.c (_bfd_elf_section_for_symbol): New function. (elf_section_ignore_discarded_relocs): Add Compact EH support. (elf_link_input_bfd): Likewise. (bfd_elf_final_link): Likewise. (_bfd_elf_gc_mark): Likewise. (bfd_elf_parse_eh_frame_entries): New function. (bfd_elf_gc_sections): Add Compact EH support. (bfd_elf_discard_info): Likewise. * elfxx-mips.c: Include dwarf2.h. (_bfd_mips_elf_compact_eh_encoding): New function. (_bfd_mips_elf_cant_unwind_opcode): New function. * elfxx-mips.h (_bfd_mips_elf_compact_eh_encoding): Declare. (_bfd_mips_elf_cant_unwind_opcode): Declare. (elf_backend_compact_eh_encoding): Define. (elf_backend_cant_unwind_opcode): Define. * elfxx-target.h (elf_backend_compact_eh_encoding): Provide default. (elf_backend_cant_unwind_opcode): Provide default. (elf_backend_data elfNN_bed): Add elf_backend_compact_eh_encoding and elf_backend_cant_unwind_opcode. * section.c (SEC_INFO_TYPE_EH_FRAME_ENTRY): Add definition. gas/ * config/tc-alpha.c (all_cfi_sections): Declare. (s_alpha_ent): Initialize all_cfi_sections. (alpha_elf_md_end): Invoke cfi_set_sections. * config/tc-mips.c (md_apply_fix): Handle BFD_RELOC_NONE. (s_ehword): Use BFD_RELOC_32_PCREL. (mips_fix_adjustable): Handle BFD_RELOC_32_PCREL. (mips_cfi_reloc_for_encoding): New function. * tc-mips.h (DWARF2_FDE_RELOC_SIZE): Redefine. (DWARF2_FDE_RELOC_ENCODING): Define. (tc_cfi_reloc_for_encoding): Define. (mips_cfi_reloc_for_encoding): Define. (tc_compact_eh_opcode_stop): Define. (tc_compact_eh_opcode_pad): Define. * doc/as.texinfo: Document Compact EH extensions. * doc/internals.texi: Likewise. * dw2gencfi.c (EH_FRAME_LINKONCE): Redefine. (tc_cfi_reloc_for_encoding): Provide default. (compact_eh): Declare. (emit_expr_encoded): New function. (get_debugseg_name): Add Compact EH support. (alloc_debugseg_item): Likewise. (cfi_set_sections): New function. (dot_cfi_fde_data): New function. (dot_cfi_personality_id): New function. (dot_cfi_inline_lsda): New function. (cfi_pseudo_table): Add cfi_fde_data, cfi_personality_id, and cfi_inline_lsda. (dot_cfi_personality): Add Compact EH support. (dot_cfi_lsda): Likewise. (dot_cfi_sections): Likewise. (dot_cfi_startproc): Likewise. (get_cfi_seg): Likewise. (output_compact_unwind_data): New function. (output_cfi_insn): Add Compact EH support. (output_cie): Likewise. (output_fde): Likewise. (cfi_finish): Likewise. (cfi_emit_eh_header): New function. (output_eh_header): New function. * dw2gencfi.h (cfi_set_sections): Declare. (SUPPORT_COMPACT_EH): Define. (MULTIPLE_FRAME_SECTIONS): Define. New enumeration to describe the Compact EH header format. (fde_entry): Add new fields personality_id, eh_header_type, eh_data_size, eh_data, eh_loc and sections. (CFI_EMIT_eh_frame, CFI_EMIT_debug_frame, CFI_EMIT_target, CFI_EMIT_eh_frame_compact): Define. 2015-05-22 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> gas/testsuite/ * gas/mips/mips.exp: Run new tests. * gas/mips/compact-eh-1.s: New file. * gas/mips/compact-eh-2.s: New file. * gas/mips/compact-eh-3.s: New file. * gas/mips/compact-eh-4.s: New file. * gas/mips/compact-eh-5.s: New file. * gas/mips/compact-eh-6.s: New file. * gas/mips/compact-eh-7.s: New file. * gas/mips/compact-eh-eb-1.d: New file. * gas/mips/compact-eh-eb-2.d: New file. * gas/mips/compact-eh-eb-3.d: New file. * gas/mips/compact-eh-eb-4.d: New file. * gas/mips/compact-eh-eb-5.d: New file. * gas/mips/compact-eh-eb-6.d: New file. * gas/mips/compact-eh-eb-7.d: New file. * gas/mips/compact-eh-el-1.d: New file. * gas/mips/compact-eh-el-2.d: New file. * gas/mips/compact-eh-el-3.d: New file. * gas/mips/compact-eh-el-4.d: New file. * gas/mips/compact-eh-el-5.d: New file. * gas/mips/compact-eh-el-6.d: New file. * gas/mips/compact-eh-el-7.d: New file. * gas/mips/compact-eh-err1.l: New file. * gas/mips/compact-eh-err1.s: New file. * gas/mips/compact-eh-err2.l: New file. * gas/mips/compact-eh-err2.s: New file. 2015-05-22 Catherine Moore <clm@codesourcery.com> include/ * bfdlink.h: Rename eh_frame_hdr to eh_frame_hdr_type. 2015-05-22 Catherine Moore <clm@codesourcery.com> Paul Brook <paul@codesourcery.com> ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Add Compact EH support. * scripttempl/elf.sc: Handle .eh_frame_entry and .gnu_extab sections. 2015-05-22 Catherine Moore <clm@codesourcery.com> ld/testsuite/ * ld-mips-elf/compact-eh.ld: New linker script. * ld-mips-elf/compact-eh1.d: New. * ld-mips-elf/compact-eh1.s: New. * ld-mips-elf/compact-eh1a.s: New. * ld-mips-elf/compact-eh1b.s: New. * ld-mips-elf/compact-eh2.d: New. * ld-mips-elf/compact-eh2.s: New. * ld-mips-elf/compact-eh3.d: New. * ld-mips-elf/compact-eh3.s: New. * ld-mips-elf/compact-eh3a.s: New. * ld-mips-elf/compact-eh4.d: New. * ld-mips-elf/compact-eh5.d: New. * ld-mips-elf/compact-eh6.d: New. * ld-mips-elf/mips-elf.exp: Run new tests.
2015-05-28 23:50:36 +02:00
extern void cfi_set_sections (void);
extern void cfi_add_advance_loc (struct symbol *);
extern void cfi_add_label (const char *);
extern void cfi_add_CFA_offset (unsigned, offsetT);
extern void cfi_add_CFA_val_offset (unsigned, offsetT);
extern void cfi_add_CFA_def_cfa (unsigned, offsetT);
extern void cfi_add_CFA_register (unsigned, unsigned);
extern void cfi_add_CFA_def_cfa_register (unsigned);
extern void cfi_add_CFA_def_cfa_offset (offsetT);
extern void cfi_add_CFA_restore (unsigned);
extern void cfi_add_CFA_undefined (unsigned);
extern void cfi_add_CFA_same_value (unsigned);
extern void cfi_add_CFA_remember_state (void);
extern void cfi_add_CFA_restore_state (void);
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
/* Structures for md_cfi_end. */
#if defined (TE_PE) || defined (TE_PEP)
#define SUPPORT_FRAME_LINKONCE 1
#else
#define SUPPORT_FRAME_LINKONCE 0
#endif
Compact EH Support The specification for the Compact EH format is available at: https://github.com/MentorEmbedded/cxx-abi/blob/master/MIPSCompactEH.pdf 2015-05-28 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> Paul Brook <paul@codesourcery.com> bfd/ * bfd-in2.h: Regenerated. * elf-bfd.h (DWARF2_EH_HDR, COMPACT_EH_HDR): Define. (COMPACT_EH_CANT_UNWIND_OPCODE): Define. (dwarf_eh_frame_hdr_info): Move dwarf-specific fields from eh_frame_hdr_info. (compact_eh_frame_hdr_info): Declare. (eh_frame_hdr_info): Redeclare with union for dwarf-specific fields and compact-eh fields. (elf_backend_data): Add cant_unwind_opcode and compact_eh_encoding. (bfd_elf_section_data): Add eh_frame_entry_field. (elf_section_eh_frame_entry): Define. (bfd_elf_parse_eh_frame_entries): Declare. (_bfd_elf_parse_eh_frame_entry): Declare. (_bfd_elf_end_eh_frame_parsing): Declare. (_bfd_elf_write_section_eh_frame_entry): Declare. (_bfd_elf_eh_frame_entry_present): Declare. (_bfd_elf_section_for_symbol): Declare. * elf-eh-frame.c (bfd_elf_discard_eh_frame_entry): New function. (bfd_elf_record_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame): Update hdr_info field references. (cmp_eh_frame_hdr): New function. (add_eh_frame_hdr_terminator): New function. (_bfd_elf_end_eh_frame_parsing): New function. (find_merged_cie): Update hdr_info field references. (_bfd_elf_discard_section_eh_frame): Likewise. (_bfd_elf_discard_section_eh_frame_hdr): Add Compact EH support. (_bfd_elf_eh_frame_entry_present): New function. (_bfd_elf_maybe_strip_eh_frame_hdr): Add Compact EH support. (_bfd_elf_write_section_eh_frame_entry): New function. (_bfd_elf_write_section_eh_frame): Update hdr_info field references. (_bfd_elf_fixup_eh_frame_hdr): New function. (write_compact_eh_frame_hdr): New function. (write_dwarf_eh_frame_hdr): New function. (_bfd_elf_write_section_eh_frame_hdr): Add Compact EH support. * elflink.c (_bfd_elf_section_for_symbol): New function. (elf_section_ignore_discarded_relocs): Add Compact EH support. (elf_link_input_bfd): Likewise. (bfd_elf_final_link): Likewise. (_bfd_elf_gc_mark): Likewise. (bfd_elf_parse_eh_frame_entries): New function. (bfd_elf_gc_sections): Add Compact EH support. (bfd_elf_discard_info): Likewise. * elfxx-mips.c: Include dwarf2.h. (_bfd_mips_elf_compact_eh_encoding): New function. (_bfd_mips_elf_cant_unwind_opcode): New function. * elfxx-mips.h (_bfd_mips_elf_compact_eh_encoding): Declare. (_bfd_mips_elf_cant_unwind_opcode): Declare. (elf_backend_compact_eh_encoding): Define. (elf_backend_cant_unwind_opcode): Define. * elfxx-target.h (elf_backend_compact_eh_encoding): Provide default. (elf_backend_cant_unwind_opcode): Provide default. (elf_backend_data elfNN_bed): Add elf_backend_compact_eh_encoding and elf_backend_cant_unwind_opcode. * section.c (SEC_INFO_TYPE_EH_FRAME_ENTRY): Add definition. gas/ * config/tc-alpha.c (all_cfi_sections): Declare. (s_alpha_ent): Initialize all_cfi_sections. (alpha_elf_md_end): Invoke cfi_set_sections. * config/tc-mips.c (md_apply_fix): Handle BFD_RELOC_NONE. (s_ehword): Use BFD_RELOC_32_PCREL. (mips_fix_adjustable): Handle BFD_RELOC_32_PCREL. (mips_cfi_reloc_for_encoding): New function. * tc-mips.h (DWARF2_FDE_RELOC_SIZE): Redefine. (DWARF2_FDE_RELOC_ENCODING): Define. (tc_cfi_reloc_for_encoding): Define. (mips_cfi_reloc_for_encoding): Define. (tc_compact_eh_opcode_stop): Define. (tc_compact_eh_opcode_pad): Define. * doc/as.texinfo: Document Compact EH extensions. * doc/internals.texi: Likewise. * dw2gencfi.c (EH_FRAME_LINKONCE): Redefine. (tc_cfi_reloc_for_encoding): Provide default. (compact_eh): Declare. (emit_expr_encoded): New function. (get_debugseg_name): Add Compact EH support. (alloc_debugseg_item): Likewise. (cfi_set_sections): New function. (dot_cfi_fde_data): New function. (dot_cfi_personality_id): New function. (dot_cfi_inline_lsda): New function. (cfi_pseudo_table): Add cfi_fde_data, cfi_personality_id, and cfi_inline_lsda. (dot_cfi_personality): Add Compact EH support. (dot_cfi_lsda): Likewise. (dot_cfi_sections): Likewise. (dot_cfi_startproc): Likewise. (get_cfi_seg): Likewise. (output_compact_unwind_data): New function. (output_cfi_insn): Add Compact EH support. (output_cie): Likewise. (output_fde): Likewise. (cfi_finish): Likewise. (cfi_emit_eh_header): New function. (output_eh_header): New function. * dw2gencfi.h (cfi_set_sections): Declare. (SUPPORT_COMPACT_EH): Define. (MULTIPLE_FRAME_SECTIONS): Define. New enumeration to describe the Compact EH header format. (fde_entry): Add new fields personality_id, eh_header_type, eh_data_size, eh_data, eh_loc and sections. (CFI_EMIT_eh_frame, CFI_EMIT_debug_frame, CFI_EMIT_target, CFI_EMIT_eh_frame_compact): Define. 2015-05-22 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> gas/testsuite/ * gas/mips/mips.exp: Run new tests. * gas/mips/compact-eh-1.s: New file. * gas/mips/compact-eh-2.s: New file. * gas/mips/compact-eh-3.s: New file. * gas/mips/compact-eh-4.s: New file. * gas/mips/compact-eh-5.s: New file. * gas/mips/compact-eh-6.s: New file. * gas/mips/compact-eh-7.s: New file. * gas/mips/compact-eh-eb-1.d: New file. * gas/mips/compact-eh-eb-2.d: New file. * gas/mips/compact-eh-eb-3.d: New file. * gas/mips/compact-eh-eb-4.d: New file. * gas/mips/compact-eh-eb-5.d: New file. * gas/mips/compact-eh-eb-6.d: New file. * gas/mips/compact-eh-eb-7.d: New file. * gas/mips/compact-eh-el-1.d: New file. * gas/mips/compact-eh-el-2.d: New file. * gas/mips/compact-eh-el-3.d: New file. * gas/mips/compact-eh-el-4.d: New file. * gas/mips/compact-eh-el-5.d: New file. * gas/mips/compact-eh-el-6.d: New file. * gas/mips/compact-eh-el-7.d: New file. * gas/mips/compact-eh-err1.l: New file. * gas/mips/compact-eh-err1.s: New file. * gas/mips/compact-eh-err2.l: New file. * gas/mips/compact-eh-err2.s: New file. 2015-05-22 Catherine Moore <clm@codesourcery.com> include/ * bfdlink.h: Rename eh_frame_hdr to eh_frame_hdr_type. 2015-05-22 Catherine Moore <clm@codesourcery.com> Paul Brook <paul@codesourcery.com> ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Add Compact EH support. * scripttempl/elf.sc: Handle .eh_frame_entry and .gnu_extab sections. 2015-05-22 Catherine Moore <clm@codesourcery.com> ld/testsuite/ * ld-mips-elf/compact-eh.ld: New linker script. * ld-mips-elf/compact-eh1.d: New. * ld-mips-elf/compact-eh1.s: New. * ld-mips-elf/compact-eh1a.s: New. * ld-mips-elf/compact-eh1b.s: New. * ld-mips-elf/compact-eh2.d: New. * ld-mips-elf/compact-eh2.s: New. * ld-mips-elf/compact-eh3.d: New. * ld-mips-elf/compact-eh3.s: New. * ld-mips-elf/compact-eh3a.s: New. * ld-mips-elf/compact-eh4.d: New. * ld-mips-elf/compact-eh5.d: New. * ld-mips-elf/compact-eh6.d: New. * ld-mips-elf/mips-elf.exp: Run new tests.
2015-05-28 23:50:36 +02:00
#ifdef tc_cfi_reloc_for_encoding
#define SUPPORT_COMPACT_EH 1
#else
#define SUPPORT_COMPACT_EH 0
#endif
#define MULTIPLE_FRAME_SECTIONS (SUPPORT_FRAME_LINKONCE || SUPPORT_COMPACT_EH)
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
struct cfi_insn_data
{
struct cfi_insn_data *next;
Compact EH Support The specification for the Compact EH format is available at: https://github.com/MentorEmbedded/cxx-abi/blob/master/MIPSCompactEH.pdf 2015-05-28 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> Paul Brook <paul@codesourcery.com> bfd/ * bfd-in2.h: Regenerated. * elf-bfd.h (DWARF2_EH_HDR, COMPACT_EH_HDR): Define. (COMPACT_EH_CANT_UNWIND_OPCODE): Define. (dwarf_eh_frame_hdr_info): Move dwarf-specific fields from eh_frame_hdr_info. (compact_eh_frame_hdr_info): Declare. (eh_frame_hdr_info): Redeclare with union for dwarf-specific fields and compact-eh fields. (elf_backend_data): Add cant_unwind_opcode and compact_eh_encoding. (bfd_elf_section_data): Add eh_frame_entry_field. (elf_section_eh_frame_entry): Define. (bfd_elf_parse_eh_frame_entries): Declare. (_bfd_elf_parse_eh_frame_entry): Declare. (_bfd_elf_end_eh_frame_parsing): Declare. (_bfd_elf_write_section_eh_frame_entry): Declare. (_bfd_elf_eh_frame_entry_present): Declare. (_bfd_elf_section_for_symbol): Declare. * elf-eh-frame.c (bfd_elf_discard_eh_frame_entry): New function. (bfd_elf_record_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame): Update hdr_info field references. (cmp_eh_frame_hdr): New function. (add_eh_frame_hdr_terminator): New function. (_bfd_elf_end_eh_frame_parsing): New function. (find_merged_cie): Update hdr_info field references. (_bfd_elf_discard_section_eh_frame): Likewise. (_bfd_elf_discard_section_eh_frame_hdr): Add Compact EH support. (_bfd_elf_eh_frame_entry_present): New function. (_bfd_elf_maybe_strip_eh_frame_hdr): Add Compact EH support. (_bfd_elf_write_section_eh_frame_entry): New function. (_bfd_elf_write_section_eh_frame): Update hdr_info field references. (_bfd_elf_fixup_eh_frame_hdr): New function. (write_compact_eh_frame_hdr): New function. (write_dwarf_eh_frame_hdr): New function. (_bfd_elf_write_section_eh_frame_hdr): Add Compact EH support. * elflink.c (_bfd_elf_section_for_symbol): New function. (elf_section_ignore_discarded_relocs): Add Compact EH support. (elf_link_input_bfd): Likewise. (bfd_elf_final_link): Likewise. (_bfd_elf_gc_mark): Likewise. (bfd_elf_parse_eh_frame_entries): New function. (bfd_elf_gc_sections): Add Compact EH support. (bfd_elf_discard_info): Likewise. * elfxx-mips.c: Include dwarf2.h. (_bfd_mips_elf_compact_eh_encoding): New function. (_bfd_mips_elf_cant_unwind_opcode): New function. * elfxx-mips.h (_bfd_mips_elf_compact_eh_encoding): Declare. (_bfd_mips_elf_cant_unwind_opcode): Declare. (elf_backend_compact_eh_encoding): Define. (elf_backend_cant_unwind_opcode): Define. * elfxx-target.h (elf_backend_compact_eh_encoding): Provide default. (elf_backend_cant_unwind_opcode): Provide default. (elf_backend_data elfNN_bed): Add elf_backend_compact_eh_encoding and elf_backend_cant_unwind_opcode. * section.c (SEC_INFO_TYPE_EH_FRAME_ENTRY): Add definition. gas/ * config/tc-alpha.c (all_cfi_sections): Declare. (s_alpha_ent): Initialize all_cfi_sections. (alpha_elf_md_end): Invoke cfi_set_sections. * config/tc-mips.c (md_apply_fix): Handle BFD_RELOC_NONE. (s_ehword): Use BFD_RELOC_32_PCREL. (mips_fix_adjustable): Handle BFD_RELOC_32_PCREL. (mips_cfi_reloc_for_encoding): New function. * tc-mips.h (DWARF2_FDE_RELOC_SIZE): Redefine. (DWARF2_FDE_RELOC_ENCODING): Define. (tc_cfi_reloc_for_encoding): Define. (mips_cfi_reloc_for_encoding): Define. (tc_compact_eh_opcode_stop): Define. (tc_compact_eh_opcode_pad): Define. * doc/as.texinfo: Document Compact EH extensions. * doc/internals.texi: Likewise. * dw2gencfi.c (EH_FRAME_LINKONCE): Redefine. (tc_cfi_reloc_for_encoding): Provide default. (compact_eh): Declare. (emit_expr_encoded): New function. (get_debugseg_name): Add Compact EH support. (alloc_debugseg_item): Likewise. (cfi_set_sections): New function. (dot_cfi_fde_data): New function. (dot_cfi_personality_id): New function. (dot_cfi_inline_lsda): New function. (cfi_pseudo_table): Add cfi_fde_data, cfi_personality_id, and cfi_inline_lsda. (dot_cfi_personality): Add Compact EH support. (dot_cfi_lsda): Likewise. (dot_cfi_sections): Likewise. (dot_cfi_startproc): Likewise. (get_cfi_seg): Likewise. (output_compact_unwind_data): New function. (output_cfi_insn): Add Compact EH support. (output_cie): Likewise. (output_fde): Likewise. (cfi_finish): Likewise. (cfi_emit_eh_header): New function. (output_eh_header): New function. * dw2gencfi.h (cfi_set_sections): Declare. (SUPPORT_COMPACT_EH): Define. (MULTIPLE_FRAME_SECTIONS): Define. New enumeration to describe the Compact EH header format. (fde_entry): Add new fields personality_id, eh_header_type, eh_data_size, eh_data, eh_loc and sections. (CFI_EMIT_eh_frame, CFI_EMIT_debug_frame, CFI_EMIT_target, CFI_EMIT_eh_frame_compact): Define. 2015-05-22 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> gas/testsuite/ * gas/mips/mips.exp: Run new tests. * gas/mips/compact-eh-1.s: New file. * gas/mips/compact-eh-2.s: New file. * gas/mips/compact-eh-3.s: New file. * gas/mips/compact-eh-4.s: New file. * gas/mips/compact-eh-5.s: New file. * gas/mips/compact-eh-6.s: New file. * gas/mips/compact-eh-7.s: New file. * gas/mips/compact-eh-eb-1.d: New file. * gas/mips/compact-eh-eb-2.d: New file. * gas/mips/compact-eh-eb-3.d: New file. * gas/mips/compact-eh-eb-4.d: New file. * gas/mips/compact-eh-eb-5.d: New file. * gas/mips/compact-eh-eb-6.d: New file. * gas/mips/compact-eh-eb-7.d: New file. * gas/mips/compact-eh-el-1.d: New file. * gas/mips/compact-eh-el-2.d: New file. * gas/mips/compact-eh-el-3.d: New file. * gas/mips/compact-eh-el-4.d: New file. * gas/mips/compact-eh-el-5.d: New file. * gas/mips/compact-eh-el-6.d: New file. * gas/mips/compact-eh-el-7.d: New file. * gas/mips/compact-eh-err1.l: New file. * gas/mips/compact-eh-err1.s: New file. * gas/mips/compact-eh-err2.l: New file. * gas/mips/compact-eh-err2.s: New file. 2015-05-22 Catherine Moore <clm@codesourcery.com> include/ * bfdlink.h: Rename eh_frame_hdr to eh_frame_hdr_type. 2015-05-22 Catherine Moore <clm@codesourcery.com> Paul Brook <paul@codesourcery.com> ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Add Compact EH support. * scripttempl/elf.sc: Handle .eh_frame_entry and .gnu_extab sections. 2015-05-22 Catherine Moore <clm@codesourcery.com> ld/testsuite/ * ld-mips-elf/compact-eh.ld: New linker script. * ld-mips-elf/compact-eh1.d: New. * ld-mips-elf/compact-eh1.s: New. * ld-mips-elf/compact-eh1a.s: New. * ld-mips-elf/compact-eh1b.s: New. * ld-mips-elf/compact-eh2.d: New. * ld-mips-elf/compact-eh2.s: New. * ld-mips-elf/compact-eh3.d: New. * ld-mips-elf/compact-eh3.s: New. * ld-mips-elf/compact-eh3a.s: New. * ld-mips-elf/compact-eh4.d: New. * ld-mips-elf/compact-eh5.d: New. * ld-mips-elf/compact-eh6.d: New. * ld-mips-elf/mips-elf.exp: Run new tests.
2015-05-28 23:50:36 +02:00
#if MULTIPLE_FRAME_SECTIONS
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
segT cur_seg;
#endif
int insn;
union
{
struct
{
unsigned reg;
offsetT offset;
} ri;
struct
{
unsigned reg1;
unsigned reg2;
} rr;
unsigned r;
offsetT i;
struct
{
symbolS *lab1;
symbolS *lab2;
} ll;
struct cfi_escape_data *esc;
struct
{
unsigned reg, encoding;
expressionS exp;
} ea;
const char *sym_name;
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
} u;
};
Compact EH Support The specification for the Compact EH format is available at: https://github.com/MentorEmbedded/cxx-abi/blob/master/MIPSCompactEH.pdf 2015-05-28 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> Paul Brook <paul@codesourcery.com> bfd/ * bfd-in2.h: Regenerated. * elf-bfd.h (DWARF2_EH_HDR, COMPACT_EH_HDR): Define. (COMPACT_EH_CANT_UNWIND_OPCODE): Define. (dwarf_eh_frame_hdr_info): Move dwarf-specific fields from eh_frame_hdr_info. (compact_eh_frame_hdr_info): Declare. (eh_frame_hdr_info): Redeclare with union for dwarf-specific fields and compact-eh fields. (elf_backend_data): Add cant_unwind_opcode and compact_eh_encoding. (bfd_elf_section_data): Add eh_frame_entry_field. (elf_section_eh_frame_entry): Define. (bfd_elf_parse_eh_frame_entries): Declare. (_bfd_elf_parse_eh_frame_entry): Declare. (_bfd_elf_end_eh_frame_parsing): Declare. (_bfd_elf_write_section_eh_frame_entry): Declare. (_bfd_elf_eh_frame_entry_present): Declare. (_bfd_elf_section_for_symbol): Declare. * elf-eh-frame.c (bfd_elf_discard_eh_frame_entry): New function. (bfd_elf_record_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame): Update hdr_info field references. (cmp_eh_frame_hdr): New function. (add_eh_frame_hdr_terminator): New function. (_bfd_elf_end_eh_frame_parsing): New function. (find_merged_cie): Update hdr_info field references. (_bfd_elf_discard_section_eh_frame): Likewise. (_bfd_elf_discard_section_eh_frame_hdr): Add Compact EH support. (_bfd_elf_eh_frame_entry_present): New function. (_bfd_elf_maybe_strip_eh_frame_hdr): Add Compact EH support. (_bfd_elf_write_section_eh_frame_entry): New function. (_bfd_elf_write_section_eh_frame): Update hdr_info field references. (_bfd_elf_fixup_eh_frame_hdr): New function. (write_compact_eh_frame_hdr): New function. (write_dwarf_eh_frame_hdr): New function. (_bfd_elf_write_section_eh_frame_hdr): Add Compact EH support. * elflink.c (_bfd_elf_section_for_symbol): New function. (elf_section_ignore_discarded_relocs): Add Compact EH support. (elf_link_input_bfd): Likewise. (bfd_elf_final_link): Likewise. (_bfd_elf_gc_mark): Likewise. (bfd_elf_parse_eh_frame_entries): New function. (bfd_elf_gc_sections): Add Compact EH support. (bfd_elf_discard_info): Likewise. * elfxx-mips.c: Include dwarf2.h. (_bfd_mips_elf_compact_eh_encoding): New function. (_bfd_mips_elf_cant_unwind_opcode): New function. * elfxx-mips.h (_bfd_mips_elf_compact_eh_encoding): Declare. (_bfd_mips_elf_cant_unwind_opcode): Declare. (elf_backend_compact_eh_encoding): Define. (elf_backend_cant_unwind_opcode): Define. * elfxx-target.h (elf_backend_compact_eh_encoding): Provide default. (elf_backend_cant_unwind_opcode): Provide default. (elf_backend_data elfNN_bed): Add elf_backend_compact_eh_encoding and elf_backend_cant_unwind_opcode. * section.c (SEC_INFO_TYPE_EH_FRAME_ENTRY): Add definition. gas/ * config/tc-alpha.c (all_cfi_sections): Declare. (s_alpha_ent): Initialize all_cfi_sections. (alpha_elf_md_end): Invoke cfi_set_sections. * config/tc-mips.c (md_apply_fix): Handle BFD_RELOC_NONE. (s_ehword): Use BFD_RELOC_32_PCREL. (mips_fix_adjustable): Handle BFD_RELOC_32_PCREL. (mips_cfi_reloc_for_encoding): New function. * tc-mips.h (DWARF2_FDE_RELOC_SIZE): Redefine. (DWARF2_FDE_RELOC_ENCODING): Define. (tc_cfi_reloc_for_encoding): Define. (mips_cfi_reloc_for_encoding): Define. (tc_compact_eh_opcode_stop): Define. (tc_compact_eh_opcode_pad): Define. * doc/as.texinfo: Document Compact EH extensions. * doc/internals.texi: Likewise. * dw2gencfi.c (EH_FRAME_LINKONCE): Redefine. (tc_cfi_reloc_for_encoding): Provide default. (compact_eh): Declare. (emit_expr_encoded): New function. (get_debugseg_name): Add Compact EH support. (alloc_debugseg_item): Likewise. (cfi_set_sections): New function. (dot_cfi_fde_data): New function. (dot_cfi_personality_id): New function. (dot_cfi_inline_lsda): New function. (cfi_pseudo_table): Add cfi_fde_data, cfi_personality_id, and cfi_inline_lsda. (dot_cfi_personality): Add Compact EH support. (dot_cfi_lsda): Likewise. (dot_cfi_sections): Likewise. (dot_cfi_startproc): Likewise. (get_cfi_seg): Likewise. (output_compact_unwind_data): New function. (output_cfi_insn): Add Compact EH support. (output_cie): Likewise. (output_fde): Likewise. (cfi_finish): Likewise. (cfi_emit_eh_header): New function. (output_eh_header): New function. * dw2gencfi.h (cfi_set_sections): Declare. (SUPPORT_COMPACT_EH): Define. (MULTIPLE_FRAME_SECTIONS): Define. New enumeration to describe the Compact EH header format. (fde_entry): Add new fields personality_id, eh_header_type, eh_data_size, eh_data, eh_loc and sections. (CFI_EMIT_eh_frame, CFI_EMIT_debug_frame, CFI_EMIT_target, CFI_EMIT_eh_frame_compact): Define. 2015-05-22 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> gas/testsuite/ * gas/mips/mips.exp: Run new tests. * gas/mips/compact-eh-1.s: New file. * gas/mips/compact-eh-2.s: New file. * gas/mips/compact-eh-3.s: New file. * gas/mips/compact-eh-4.s: New file. * gas/mips/compact-eh-5.s: New file. * gas/mips/compact-eh-6.s: New file. * gas/mips/compact-eh-7.s: New file. * gas/mips/compact-eh-eb-1.d: New file. * gas/mips/compact-eh-eb-2.d: New file. * gas/mips/compact-eh-eb-3.d: New file. * gas/mips/compact-eh-eb-4.d: New file. * gas/mips/compact-eh-eb-5.d: New file. * gas/mips/compact-eh-eb-6.d: New file. * gas/mips/compact-eh-eb-7.d: New file. * gas/mips/compact-eh-el-1.d: New file. * gas/mips/compact-eh-el-2.d: New file. * gas/mips/compact-eh-el-3.d: New file. * gas/mips/compact-eh-el-4.d: New file. * gas/mips/compact-eh-el-5.d: New file. * gas/mips/compact-eh-el-6.d: New file. * gas/mips/compact-eh-el-7.d: New file. * gas/mips/compact-eh-err1.l: New file. * gas/mips/compact-eh-err1.s: New file. * gas/mips/compact-eh-err2.l: New file. * gas/mips/compact-eh-err2.s: New file. 2015-05-22 Catherine Moore <clm@codesourcery.com> include/ * bfdlink.h: Rename eh_frame_hdr to eh_frame_hdr_type. 2015-05-22 Catherine Moore <clm@codesourcery.com> Paul Brook <paul@codesourcery.com> ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Add Compact EH support. * scripttempl/elf.sc: Handle .eh_frame_entry and .gnu_extab sections. 2015-05-22 Catherine Moore <clm@codesourcery.com> ld/testsuite/ * ld-mips-elf/compact-eh.ld: New linker script. * ld-mips-elf/compact-eh1.d: New. * ld-mips-elf/compact-eh1.s: New. * ld-mips-elf/compact-eh1a.s: New. * ld-mips-elf/compact-eh1b.s: New. * ld-mips-elf/compact-eh2.d: New. * ld-mips-elf/compact-eh2.s: New. * ld-mips-elf/compact-eh3.d: New. * ld-mips-elf/compact-eh3.s: New. * ld-mips-elf/compact-eh3a.s: New. * ld-mips-elf/compact-eh4.d: New. * ld-mips-elf/compact-eh5.d: New. * ld-mips-elf/compact-eh6.d: New. * ld-mips-elf/mips-elf.exp: Run new tests.
2015-05-28 23:50:36 +02:00
/* An enumeration describing the Compact EH header format. The least
significant bit is used to distinguish the entries.
Inline Compact: Function offset [0]
Four chars of unwind data.
Out-of-line Compact: Function offset [1]
Compact unwind data offset [0]
Legacy: Function offset [1]
Unwind data offset [1]
The header type is initialized to EH_COMPACT_UNKNOWN until the
format is discovered by encountering a .fde_data entry.
Failure to find a .fde_data entry will cause an EH_COMPACT_LEGACY
header to be generated. */
enum {
EH_COMPACT_UNKNOWN,
EH_COMPACT_LEGACY,
EH_COMPACT_INLINE,
EH_COMPACT_OUTLINE,
EH_COMPACT_OUTLINE_DONE,
/* Outline if .cfi_inline_lsda used, otherwise legacy FDE. */
EH_COMPACT_HAS_LSDA
};
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
struct fde_entry
{
struct fde_entry *next;
Compact EH Support The specification for the Compact EH format is available at: https://github.com/MentorEmbedded/cxx-abi/blob/master/MIPSCompactEH.pdf 2015-05-28 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> Paul Brook <paul@codesourcery.com> bfd/ * bfd-in2.h: Regenerated. * elf-bfd.h (DWARF2_EH_HDR, COMPACT_EH_HDR): Define. (COMPACT_EH_CANT_UNWIND_OPCODE): Define. (dwarf_eh_frame_hdr_info): Move dwarf-specific fields from eh_frame_hdr_info. (compact_eh_frame_hdr_info): Declare. (eh_frame_hdr_info): Redeclare with union for dwarf-specific fields and compact-eh fields. (elf_backend_data): Add cant_unwind_opcode and compact_eh_encoding. (bfd_elf_section_data): Add eh_frame_entry_field. (elf_section_eh_frame_entry): Define. (bfd_elf_parse_eh_frame_entries): Declare. (_bfd_elf_parse_eh_frame_entry): Declare. (_bfd_elf_end_eh_frame_parsing): Declare. (_bfd_elf_write_section_eh_frame_entry): Declare. (_bfd_elf_eh_frame_entry_present): Declare. (_bfd_elf_section_for_symbol): Declare. * elf-eh-frame.c (bfd_elf_discard_eh_frame_entry): New function. (bfd_elf_record_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame): Update hdr_info field references. (cmp_eh_frame_hdr): New function. (add_eh_frame_hdr_terminator): New function. (_bfd_elf_end_eh_frame_parsing): New function. (find_merged_cie): Update hdr_info field references. (_bfd_elf_discard_section_eh_frame): Likewise. (_bfd_elf_discard_section_eh_frame_hdr): Add Compact EH support. (_bfd_elf_eh_frame_entry_present): New function. (_bfd_elf_maybe_strip_eh_frame_hdr): Add Compact EH support. (_bfd_elf_write_section_eh_frame_entry): New function. (_bfd_elf_write_section_eh_frame): Update hdr_info field references. (_bfd_elf_fixup_eh_frame_hdr): New function. (write_compact_eh_frame_hdr): New function. (write_dwarf_eh_frame_hdr): New function. (_bfd_elf_write_section_eh_frame_hdr): Add Compact EH support. * elflink.c (_bfd_elf_section_for_symbol): New function. (elf_section_ignore_discarded_relocs): Add Compact EH support. (elf_link_input_bfd): Likewise. (bfd_elf_final_link): Likewise. (_bfd_elf_gc_mark): Likewise. (bfd_elf_parse_eh_frame_entries): New function. (bfd_elf_gc_sections): Add Compact EH support. (bfd_elf_discard_info): Likewise. * elfxx-mips.c: Include dwarf2.h. (_bfd_mips_elf_compact_eh_encoding): New function. (_bfd_mips_elf_cant_unwind_opcode): New function. * elfxx-mips.h (_bfd_mips_elf_compact_eh_encoding): Declare. (_bfd_mips_elf_cant_unwind_opcode): Declare. (elf_backend_compact_eh_encoding): Define. (elf_backend_cant_unwind_opcode): Define. * elfxx-target.h (elf_backend_compact_eh_encoding): Provide default. (elf_backend_cant_unwind_opcode): Provide default. (elf_backend_data elfNN_bed): Add elf_backend_compact_eh_encoding and elf_backend_cant_unwind_opcode. * section.c (SEC_INFO_TYPE_EH_FRAME_ENTRY): Add definition. gas/ * config/tc-alpha.c (all_cfi_sections): Declare. (s_alpha_ent): Initialize all_cfi_sections. (alpha_elf_md_end): Invoke cfi_set_sections. * config/tc-mips.c (md_apply_fix): Handle BFD_RELOC_NONE. (s_ehword): Use BFD_RELOC_32_PCREL. (mips_fix_adjustable): Handle BFD_RELOC_32_PCREL. (mips_cfi_reloc_for_encoding): New function. * tc-mips.h (DWARF2_FDE_RELOC_SIZE): Redefine. (DWARF2_FDE_RELOC_ENCODING): Define. (tc_cfi_reloc_for_encoding): Define. (mips_cfi_reloc_for_encoding): Define. (tc_compact_eh_opcode_stop): Define. (tc_compact_eh_opcode_pad): Define. * doc/as.texinfo: Document Compact EH extensions. * doc/internals.texi: Likewise. * dw2gencfi.c (EH_FRAME_LINKONCE): Redefine. (tc_cfi_reloc_for_encoding): Provide default. (compact_eh): Declare. (emit_expr_encoded): New function. (get_debugseg_name): Add Compact EH support. (alloc_debugseg_item): Likewise. (cfi_set_sections): New function. (dot_cfi_fde_data): New function. (dot_cfi_personality_id): New function. (dot_cfi_inline_lsda): New function. (cfi_pseudo_table): Add cfi_fde_data, cfi_personality_id, and cfi_inline_lsda. (dot_cfi_personality): Add Compact EH support. (dot_cfi_lsda): Likewise. (dot_cfi_sections): Likewise. (dot_cfi_startproc): Likewise. (get_cfi_seg): Likewise. (output_compact_unwind_data): New function. (output_cfi_insn): Add Compact EH support. (output_cie): Likewise. (output_fde): Likewise. (cfi_finish): Likewise. (cfi_emit_eh_header): New function. (output_eh_header): New function. * dw2gencfi.h (cfi_set_sections): Declare. (SUPPORT_COMPACT_EH): Define. (MULTIPLE_FRAME_SECTIONS): Define. New enumeration to describe the Compact EH header format. (fde_entry): Add new fields personality_id, eh_header_type, eh_data_size, eh_data, eh_loc and sections. (CFI_EMIT_eh_frame, CFI_EMIT_debug_frame, CFI_EMIT_target, CFI_EMIT_eh_frame_compact): Define. 2015-05-22 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> gas/testsuite/ * gas/mips/mips.exp: Run new tests. * gas/mips/compact-eh-1.s: New file. * gas/mips/compact-eh-2.s: New file. * gas/mips/compact-eh-3.s: New file. * gas/mips/compact-eh-4.s: New file. * gas/mips/compact-eh-5.s: New file. * gas/mips/compact-eh-6.s: New file. * gas/mips/compact-eh-7.s: New file. * gas/mips/compact-eh-eb-1.d: New file. * gas/mips/compact-eh-eb-2.d: New file. * gas/mips/compact-eh-eb-3.d: New file. * gas/mips/compact-eh-eb-4.d: New file. * gas/mips/compact-eh-eb-5.d: New file. * gas/mips/compact-eh-eb-6.d: New file. * gas/mips/compact-eh-eb-7.d: New file. * gas/mips/compact-eh-el-1.d: New file. * gas/mips/compact-eh-el-2.d: New file. * gas/mips/compact-eh-el-3.d: New file. * gas/mips/compact-eh-el-4.d: New file. * gas/mips/compact-eh-el-5.d: New file. * gas/mips/compact-eh-el-6.d: New file. * gas/mips/compact-eh-el-7.d: New file. * gas/mips/compact-eh-err1.l: New file. * gas/mips/compact-eh-err1.s: New file. * gas/mips/compact-eh-err2.l: New file. * gas/mips/compact-eh-err2.s: New file. 2015-05-22 Catherine Moore <clm@codesourcery.com> include/ * bfdlink.h: Rename eh_frame_hdr to eh_frame_hdr_type. 2015-05-22 Catherine Moore <clm@codesourcery.com> Paul Brook <paul@codesourcery.com> ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Add Compact EH support. * scripttempl/elf.sc: Handle .eh_frame_entry and .gnu_extab sections. 2015-05-22 Catherine Moore <clm@codesourcery.com> ld/testsuite/ * ld-mips-elf/compact-eh.ld: New linker script. * ld-mips-elf/compact-eh1.d: New. * ld-mips-elf/compact-eh1.s: New. * ld-mips-elf/compact-eh1a.s: New. * ld-mips-elf/compact-eh1b.s: New. * ld-mips-elf/compact-eh2.d: New. * ld-mips-elf/compact-eh2.s: New. * ld-mips-elf/compact-eh3.d: New. * ld-mips-elf/compact-eh3.s: New. * ld-mips-elf/compact-eh3a.s: New. * ld-mips-elf/compact-eh4.d: New. * ld-mips-elf/compact-eh5.d: New. * ld-mips-elf/compact-eh6.d: New. * ld-mips-elf/mips-elf.exp: Run new tests.
2015-05-28 23:50:36 +02:00
#if MULTIPLE_FRAME_SECTIONS
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
segT cur_seg;
#endif
symbolS *start_address;
symbolS *end_address;
struct cfi_insn_data *data;
struct cfi_insn_data **last;
unsigned char per_encoding;
unsigned char lsda_encoding;
Compact EH Support The specification for the Compact EH format is available at: https://github.com/MentorEmbedded/cxx-abi/blob/master/MIPSCompactEH.pdf 2015-05-28 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> Paul Brook <paul@codesourcery.com> bfd/ * bfd-in2.h: Regenerated. * elf-bfd.h (DWARF2_EH_HDR, COMPACT_EH_HDR): Define. (COMPACT_EH_CANT_UNWIND_OPCODE): Define. (dwarf_eh_frame_hdr_info): Move dwarf-specific fields from eh_frame_hdr_info. (compact_eh_frame_hdr_info): Declare. (eh_frame_hdr_info): Redeclare with union for dwarf-specific fields and compact-eh fields. (elf_backend_data): Add cant_unwind_opcode and compact_eh_encoding. (bfd_elf_section_data): Add eh_frame_entry_field. (elf_section_eh_frame_entry): Define. (bfd_elf_parse_eh_frame_entries): Declare. (_bfd_elf_parse_eh_frame_entry): Declare. (_bfd_elf_end_eh_frame_parsing): Declare. (_bfd_elf_write_section_eh_frame_entry): Declare. (_bfd_elf_eh_frame_entry_present): Declare. (_bfd_elf_section_for_symbol): Declare. * elf-eh-frame.c (bfd_elf_discard_eh_frame_entry): New function. (bfd_elf_record_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame): Update hdr_info field references. (cmp_eh_frame_hdr): New function. (add_eh_frame_hdr_terminator): New function. (_bfd_elf_end_eh_frame_parsing): New function. (find_merged_cie): Update hdr_info field references. (_bfd_elf_discard_section_eh_frame): Likewise. (_bfd_elf_discard_section_eh_frame_hdr): Add Compact EH support. (_bfd_elf_eh_frame_entry_present): New function. (_bfd_elf_maybe_strip_eh_frame_hdr): Add Compact EH support. (_bfd_elf_write_section_eh_frame_entry): New function. (_bfd_elf_write_section_eh_frame): Update hdr_info field references. (_bfd_elf_fixup_eh_frame_hdr): New function. (write_compact_eh_frame_hdr): New function. (write_dwarf_eh_frame_hdr): New function. (_bfd_elf_write_section_eh_frame_hdr): Add Compact EH support. * elflink.c (_bfd_elf_section_for_symbol): New function. (elf_section_ignore_discarded_relocs): Add Compact EH support. (elf_link_input_bfd): Likewise. (bfd_elf_final_link): Likewise. (_bfd_elf_gc_mark): Likewise. (bfd_elf_parse_eh_frame_entries): New function. (bfd_elf_gc_sections): Add Compact EH support. (bfd_elf_discard_info): Likewise. * elfxx-mips.c: Include dwarf2.h. (_bfd_mips_elf_compact_eh_encoding): New function. (_bfd_mips_elf_cant_unwind_opcode): New function. * elfxx-mips.h (_bfd_mips_elf_compact_eh_encoding): Declare. (_bfd_mips_elf_cant_unwind_opcode): Declare. (elf_backend_compact_eh_encoding): Define. (elf_backend_cant_unwind_opcode): Define. * elfxx-target.h (elf_backend_compact_eh_encoding): Provide default. (elf_backend_cant_unwind_opcode): Provide default. (elf_backend_data elfNN_bed): Add elf_backend_compact_eh_encoding and elf_backend_cant_unwind_opcode. * section.c (SEC_INFO_TYPE_EH_FRAME_ENTRY): Add definition. gas/ * config/tc-alpha.c (all_cfi_sections): Declare. (s_alpha_ent): Initialize all_cfi_sections. (alpha_elf_md_end): Invoke cfi_set_sections. * config/tc-mips.c (md_apply_fix): Handle BFD_RELOC_NONE. (s_ehword): Use BFD_RELOC_32_PCREL. (mips_fix_adjustable): Handle BFD_RELOC_32_PCREL. (mips_cfi_reloc_for_encoding): New function. * tc-mips.h (DWARF2_FDE_RELOC_SIZE): Redefine. (DWARF2_FDE_RELOC_ENCODING): Define. (tc_cfi_reloc_for_encoding): Define. (mips_cfi_reloc_for_encoding): Define. (tc_compact_eh_opcode_stop): Define. (tc_compact_eh_opcode_pad): Define. * doc/as.texinfo: Document Compact EH extensions. * doc/internals.texi: Likewise. * dw2gencfi.c (EH_FRAME_LINKONCE): Redefine. (tc_cfi_reloc_for_encoding): Provide default. (compact_eh): Declare. (emit_expr_encoded): New function. (get_debugseg_name): Add Compact EH support. (alloc_debugseg_item): Likewise. (cfi_set_sections): New function. (dot_cfi_fde_data): New function. (dot_cfi_personality_id): New function. (dot_cfi_inline_lsda): New function. (cfi_pseudo_table): Add cfi_fde_data, cfi_personality_id, and cfi_inline_lsda. (dot_cfi_personality): Add Compact EH support. (dot_cfi_lsda): Likewise. (dot_cfi_sections): Likewise. (dot_cfi_startproc): Likewise. (get_cfi_seg): Likewise. (output_compact_unwind_data): New function. (output_cfi_insn): Add Compact EH support. (output_cie): Likewise. (output_fde): Likewise. (cfi_finish): Likewise. (cfi_emit_eh_header): New function. (output_eh_header): New function. * dw2gencfi.h (cfi_set_sections): Declare. (SUPPORT_COMPACT_EH): Define. (MULTIPLE_FRAME_SECTIONS): Define. New enumeration to describe the Compact EH header format. (fde_entry): Add new fields personality_id, eh_header_type, eh_data_size, eh_data, eh_loc and sections. (CFI_EMIT_eh_frame, CFI_EMIT_debug_frame, CFI_EMIT_target, CFI_EMIT_eh_frame_compact): Define. 2015-05-22 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> gas/testsuite/ * gas/mips/mips.exp: Run new tests. * gas/mips/compact-eh-1.s: New file. * gas/mips/compact-eh-2.s: New file. * gas/mips/compact-eh-3.s: New file. * gas/mips/compact-eh-4.s: New file. * gas/mips/compact-eh-5.s: New file. * gas/mips/compact-eh-6.s: New file. * gas/mips/compact-eh-7.s: New file. * gas/mips/compact-eh-eb-1.d: New file. * gas/mips/compact-eh-eb-2.d: New file. * gas/mips/compact-eh-eb-3.d: New file. * gas/mips/compact-eh-eb-4.d: New file. * gas/mips/compact-eh-eb-5.d: New file. * gas/mips/compact-eh-eb-6.d: New file. * gas/mips/compact-eh-eb-7.d: New file. * gas/mips/compact-eh-el-1.d: New file. * gas/mips/compact-eh-el-2.d: New file. * gas/mips/compact-eh-el-3.d: New file. * gas/mips/compact-eh-el-4.d: New file. * gas/mips/compact-eh-el-5.d: New file. * gas/mips/compact-eh-el-6.d: New file. * gas/mips/compact-eh-el-7.d: New file. * gas/mips/compact-eh-err1.l: New file. * gas/mips/compact-eh-err1.s: New file. * gas/mips/compact-eh-err2.l: New file. * gas/mips/compact-eh-err2.s: New file. 2015-05-22 Catherine Moore <clm@codesourcery.com> include/ * bfdlink.h: Rename eh_frame_hdr to eh_frame_hdr_type. 2015-05-22 Catherine Moore <clm@codesourcery.com> Paul Brook <paul@codesourcery.com> ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Add Compact EH support. * scripttempl/elf.sc: Handle .eh_frame_entry and .gnu_extab sections. 2015-05-22 Catherine Moore <clm@codesourcery.com> ld/testsuite/ * ld-mips-elf/compact-eh.ld: New linker script. * ld-mips-elf/compact-eh1.d: New. * ld-mips-elf/compact-eh1.s: New. * ld-mips-elf/compact-eh1a.s: New. * ld-mips-elf/compact-eh1b.s: New. * ld-mips-elf/compact-eh2.d: New. * ld-mips-elf/compact-eh2.s: New. * ld-mips-elf/compact-eh3.d: New. * ld-mips-elf/compact-eh3.s: New. * ld-mips-elf/compact-eh3a.s: New. * ld-mips-elf/compact-eh4.d: New. * ld-mips-elf/compact-eh5.d: New. * ld-mips-elf/compact-eh6.d: New. * ld-mips-elf/mips-elf.exp: Run new tests.
2015-05-28 23:50:36 +02:00
int personality_id;
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
expressionS personality;
expressionS lsda;
unsigned int return_column;
unsigned int signal_frame;
Compact EH Support The specification for the Compact EH format is available at: https://github.com/MentorEmbedded/cxx-abi/blob/master/MIPSCompactEH.pdf 2015-05-28 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> Paul Brook <paul@codesourcery.com> bfd/ * bfd-in2.h: Regenerated. * elf-bfd.h (DWARF2_EH_HDR, COMPACT_EH_HDR): Define. (COMPACT_EH_CANT_UNWIND_OPCODE): Define. (dwarf_eh_frame_hdr_info): Move dwarf-specific fields from eh_frame_hdr_info. (compact_eh_frame_hdr_info): Declare. (eh_frame_hdr_info): Redeclare with union for dwarf-specific fields and compact-eh fields. (elf_backend_data): Add cant_unwind_opcode and compact_eh_encoding. (bfd_elf_section_data): Add eh_frame_entry_field. (elf_section_eh_frame_entry): Define. (bfd_elf_parse_eh_frame_entries): Declare. (_bfd_elf_parse_eh_frame_entry): Declare. (_bfd_elf_end_eh_frame_parsing): Declare. (_bfd_elf_write_section_eh_frame_entry): Declare. (_bfd_elf_eh_frame_entry_present): Declare. (_bfd_elf_section_for_symbol): Declare. * elf-eh-frame.c (bfd_elf_discard_eh_frame_entry): New function. (bfd_elf_record_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame): Update hdr_info field references. (cmp_eh_frame_hdr): New function. (add_eh_frame_hdr_terminator): New function. (_bfd_elf_end_eh_frame_parsing): New function. (find_merged_cie): Update hdr_info field references. (_bfd_elf_discard_section_eh_frame): Likewise. (_bfd_elf_discard_section_eh_frame_hdr): Add Compact EH support. (_bfd_elf_eh_frame_entry_present): New function. (_bfd_elf_maybe_strip_eh_frame_hdr): Add Compact EH support. (_bfd_elf_write_section_eh_frame_entry): New function. (_bfd_elf_write_section_eh_frame): Update hdr_info field references. (_bfd_elf_fixup_eh_frame_hdr): New function. (write_compact_eh_frame_hdr): New function. (write_dwarf_eh_frame_hdr): New function. (_bfd_elf_write_section_eh_frame_hdr): Add Compact EH support. * elflink.c (_bfd_elf_section_for_symbol): New function. (elf_section_ignore_discarded_relocs): Add Compact EH support. (elf_link_input_bfd): Likewise. (bfd_elf_final_link): Likewise. (_bfd_elf_gc_mark): Likewise. (bfd_elf_parse_eh_frame_entries): New function. (bfd_elf_gc_sections): Add Compact EH support. (bfd_elf_discard_info): Likewise. * elfxx-mips.c: Include dwarf2.h. (_bfd_mips_elf_compact_eh_encoding): New function. (_bfd_mips_elf_cant_unwind_opcode): New function. * elfxx-mips.h (_bfd_mips_elf_compact_eh_encoding): Declare. (_bfd_mips_elf_cant_unwind_opcode): Declare. (elf_backend_compact_eh_encoding): Define. (elf_backend_cant_unwind_opcode): Define. * elfxx-target.h (elf_backend_compact_eh_encoding): Provide default. (elf_backend_cant_unwind_opcode): Provide default. (elf_backend_data elfNN_bed): Add elf_backend_compact_eh_encoding and elf_backend_cant_unwind_opcode. * section.c (SEC_INFO_TYPE_EH_FRAME_ENTRY): Add definition. gas/ * config/tc-alpha.c (all_cfi_sections): Declare. (s_alpha_ent): Initialize all_cfi_sections. (alpha_elf_md_end): Invoke cfi_set_sections. * config/tc-mips.c (md_apply_fix): Handle BFD_RELOC_NONE. (s_ehword): Use BFD_RELOC_32_PCREL. (mips_fix_adjustable): Handle BFD_RELOC_32_PCREL. (mips_cfi_reloc_for_encoding): New function. * tc-mips.h (DWARF2_FDE_RELOC_SIZE): Redefine. (DWARF2_FDE_RELOC_ENCODING): Define. (tc_cfi_reloc_for_encoding): Define. (mips_cfi_reloc_for_encoding): Define. (tc_compact_eh_opcode_stop): Define. (tc_compact_eh_opcode_pad): Define. * doc/as.texinfo: Document Compact EH extensions. * doc/internals.texi: Likewise. * dw2gencfi.c (EH_FRAME_LINKONCE): Redefine. (tc_cfi_reloc_for_encoding): Provide default. (compact_eh): Declare. (emit_expr_encoded): New function. (get_debugseg_name): Add Compact EH support. (alloc_debugseg_item): Likewise. (cfi_set_sections): New function. (dot_cfi_fde_data): New function. (dot_cfi_personality_id): New function. (dot_cfi_inline_lsda): New function. (cfi_pseudo_table): Add cfi_fde_data, cfi_personality_id, and cfi_inline_lsda. (dot_cfi_personality): Add Compact EH support. (dot_cfi_lsda): Likewise. (dot_cfi_sections): Likewise. (dot_cfi_startproc): Likewise. (get_cfi_seg): Likewise. (output_compact_unwind_data): New function. (output_cfi_insn): Add Compact EH support. (output_cie): Likewise. (output_fde): Likewise. (cfi_finish): Likewise. (cfi_emit_eh_header): New function. (output_eh_header): New function. * dw2gencfi.h (cfi_set_sections): Declare. (SUPPORT_COMPACT_EH): Define. (MULTIPLE_FRAME_SECTIONS): Define. New enumeration to describe the Compact EH header format. (fde_entry): Add new fields personality_id, eh_header_type, eh_data_size, eh_data, eh_loc and sections. (CFI_EMIT_eh_frame, CFI_EMIT_debug_frame, CFI_EMIT_target, CFI_EMIT_eh_frame_compact): Define. 2015-05-22 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> gas/testsuite/ * gas/mips/mips.exp: Run new tests. * gas/mips/compact-eh-1.s: New file. * gas/mips/compact-eh-2.s: New file. * gas/mips/compact-eh-3.s: New file. * gas/mips/compact-eh-4.s: New file. * gas/mips/compact-eh-5.s: New file. * gas/mips/compact-eh-6.s: New file. * gas/mips/compact-eh-7.s: New file. * gas/mips/compact-eh-eb-1.d: New file. * gas/mips/compact-eh-eb-2.d: New file. * gas/mips/compact-eh-eb-3.d: New file. * gas/mips/compact-eh-eb-4.d: New file. * gas/mips/compact-eh-eb-5.d: New file. * gas/mips/compact-eh-eb-6.d: New file. * gas/mips/compact-eh-eb-7.d: New file. * gas/mips/compact-eh-el-1.d: New file. * gas/mips/compact-eh-el-2.d: New file. * gas/mips/compact-eh-el-3.d: New file. * gas/mips/compact-eh-el-4.d: New file. * gas/mips/compact-eh-el-5.d: New file. * gas/mips/compact-eh-el-6.d: New file. * gas/mips/compact-eh-el-7.d: New file. * gas/mips/compact-eh-err1.l: New file. * gas/mips/compact-eh-err1.s: New file. * gas/mips/compact-eh-err2.l: New file. * gas/mips/compact-eh-err2.s: New file. 2015-05-22 Catherine Moore <clm@codesourcery.com> include/ * bfdlink.h: Rename eh_frame_hdr to eh_frame_hdr_type. 2015-05-22 Catherine Moore <clm@codesourcery.com> Paul Brook <paul@codesourcery.com> ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Add Compact EH support. * scripttempl/elf.sc: Handle .eh_frame_entry and .gnu_extab sections. 2015-05-22 Catherine Moore <clm@codesourcery.com> ld/testsuite/ * ld-mips-elf/compact-eh.ld: New linker script. * ld-mips-elf/compact-eh1.d: New. * ld-mips-elf/compact-eh1.s: New. * ld-mips-elf/compact-eh1a.s: New. * ld-mips-elf/compact-eh1b.s: New. * ld-mips-elf/compact-eh2.d: New. * ld-mips-elf/compact-eh2.s: New. * ld-mips-elf/compact-eh3.d: New. * ld-mips-elf/compact-eh3.s: New. * ld-mips-elf/compact-eh3a.s: New. * ld-mips-elf/compact-eh4.d: New. * ld-mips-elf/compact-eh5.d: New. * ld-mips-elf/compact-eh6.d: New. * ld-mips-elf/mips-elf.exp: Run new tests.
2015-05-28 23:50:36 +02:00
#if MULTIPLE_FRAME_SECTIONS
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
int handled;
#endif
Compact EH Support The specification for the Compact EH format is available at: https://github.com/MentorEmbedded/cxx-abi/blob/master/MIPSCompactEH.pdf 2015-05-28 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> Paul Brook <paul@codesourcery.com> bfd/ * bfd-in2.h: Regenerated. * elf-bfd.h (DWARF2_EH_HDR, COMPACT_EH_HDR): Define. (COMPACT_EH_CANT_UNWIND_OPCODE): Define. (dwarf_eh_frame_hdr_info): Move dwarf-specific fields from eh_frame_hdr_info. (compact_eh_frame_hdr_info): Declare. (eh_frame_hdr_info): Redeclare with union for dwarf-specific fields and compact-eh fields. (elf_backend_data): Add cant_unwind_opcode and compact_eh_encoding. (bfd_elf_section_data): Add eh_frame_entry_field. (elf_section_eh_frame_entry): Define. (bfd_elf_parse_eh_frame_entries): Declare. (_bfd_elf_parse_eh_frame_entry): Declare. (_bfd_elf_end_eh_frame_parsing): Declare. (_bfd_elf_write_section_eh_frame_entry): Declare. (_bfd_elf_eh_frame_entry_present): Declare. (_bfd_elf_section_for_symbol): Declare. * elf-eh-frame.c (bfd_elf_discard_eh_frame_entry): New function. (bfd_elf_record_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame): Update hdr_info field references. (cmp_eh_frame_hdr): New function. (add_eh_frame_hdr_terminator): New function. (_bfd_elf_end_eh_frame_parsing): New function. (find_merged_cie): Update hdr_info field references. (_bfd_elf_discard_section_eh_frame): Likewise. (_bfd_elf_discard_section_eh_frame_hdr): Add Compact EH support. (_bfd_elf_eh_frame_entry_present): New function. (_bfd_elf_maybe_strip_eh_frame_hdr): Add Compact EH support. (_bfd_elf_write_section_eh_frame_entry): New function. (_bfd_elf_write_section_eh_frame): Update hdr_info field references. (_bfd_elf_fixup_eh_frame_hdr): New function. (write_compact_eh_frame_hdr): New function. (write_dwarf_eh_frame_hdr): New function. (_bfd_elf_write_section_eh_frame_hdr): Add Compact EH support. * elflink.c (_bfd_elf_section_for_symbol): New function. (elf_section_ignore_discarded_relocs): Add Compact EH support. (elf_link_input_bfd): Likewise. (bfd_elf_final_link): Likewise. (_bfd_elf_gc_mark): Likewise. (bfd_elf_parse_eh_frame_entries): New function. (bfd_elf_gc_sections): Add Compact EH support. (bfd_elf_discard_info): Likewise. * elfxx-mips.c: Include dwarf2.h. (_bfd_mips_elf_compact_eh_encoding): New function. (_bfd_mips_elf_cant_unwind_opcode): New function. * elfxx-mips.h (_bfd_mips_elf_compact_eh_encoding): Declare. (_bfd_mips_elf_cant_unwind_opcode): Declare. (elf_backend_compact_eh_encoding): Define. (elf_backend_cant_unwind_opcode): Define. * elfxx-target.h (elf_backend_compact_eh_encoding): Provide default. (elf_backend_cant_unwind_opcode): Provide default. (elf_backend_data elfNN_bed): Add elf_backend_compact_eh_encoding and elf_backend_cant_unwind_opcode. * section.c (SEC_INFO_TYPE_EH_FRAME_ENTRY): Add definition. gas/ * config/tc-alpha.c (all_cfi_sections): Declare. (s_alpha_ent): Initialize all_cfi_sections. (alpha_elf_md_end): Invoke cfi_set_sections. * config/tc-mips.c (md_apply_fix): Handle BFD_RELOC_NONE. (s_ehword): Use BFD_RELOC_32_PCREL. (mips_fix_adjustable): Handle BFD_RELOC_32_PCREL. (mips_cfi_reloc_for_encoding): New function. * tc-mips.h (DWARF2_FDE_RELOC_SIZE): Redefine. (DWARF2_FDE_RELOC_ENCODING): Define. (tc_cfi_reloc_for_encoding): Define. (mips_cfi_reloc_for_encoding): Define. (tc_compact_eh_opcode_stop): Define. (tc_compact_eh_opcode_pad): Define. * doc/as.texinfo: Document Compact EH extensions. * doc/internals.texi: Likewise. * dw2gencfi.c (EH_FRAME_LINKONCE): Redefine. (tc_cfi_reloc_for_encoding): Provide default. (compact_eh): Declare. (emit_expr_encoded): New function. (get_debugseg_name): Add Compact EH support. (alloc_debugseg_item): Likewise. (cfi_set_sections): New function. (dot_cfi_fde_data): New function. (dot_cfi_personality_id): New function. (dot_cfi_inline_lsda): New function. (cfi_pseudo_table): Add cfi_fde_data, cfi_personality_id, and cfi_inline_lsda. (dot_cfi_personality): Add Compact EH support. (dot_cfi_lsda): Likewise. (dot_cfi_sections): Likewise. (dot_cfi_startproc): Likewise. (get_cfi_seg): Likewise. (output_compact_unwind_data): New function. (output_cfi_insn): Add Compact EH support. (output_cie): Likewise. (output_fde): Likewise. (cfi_finish): Likewise. (cfi_emit_eh_header): New function. (output_eh_header): New function. * dw2gencfi.h (cfi_set_sections): Declare. (SUPPORT_COMPACT_EH): Define. (MULTIPLE_FRAME_SECTIONS): Define. New enumeration to describe the Compact EH header format. (fde_entry): Add new fields personality_id, eh_header_type, eh_data_size, eh_data, eh_loc and sections. (CFI_EMIT_eh_frame, CFI_EMIT_debug_frame, CFI_EMIT_target, CFI_EMIT_eh_frame_compact): Define. 2015-05-22 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> gas/testsuite/ * gas/mips/mips.exp: Run new tests. * gas/mips/compact-eh-1.s: New file. * gas/mips/compact-eh-2.s: New file. * gas/mips/compact-eh-3.s: New file. * gas/mips/compact-eh-4.s: New file. * gas/mips/compact-eh-5.s: New file. * gas/mips/compact-eh-6.s: New file. * gas/mips/compact-eh-7.s: New file. * gas/mips/compact-eh-eb-1.d: New file. * gas/mips/compact-eh-eb-2.d: New file. * gas/mips/compact-eh-eb-3.d: New file. * gas/mips/compact-eh-eb-4.d: New file. * gas/mips/compact-eh-eb-5.d: New file. * gas/mips/compact-eh-eb-6.d: New file. * gas/mips/compact-eh-eb-7.d: New file. * gas/mips/compact-eh-el-1.d: New file. * gas/mips/compact-eh-el-2.d: New file. * gas/mips/compact-eh-el-3.d: New file. * gas/mips/compact-eh-el-4.d: New file. * gas/mips/compact-eh-el-5.d: New file. * gas/mips/compact-eh-el-6.d: New file. * gas/mips/compact-eh-el-7.d: New file. * gas/mips/compact-eh-err1.l: New file. * gas/mips/compact-eh-err1.s: New file. * gas/mips/compact-eh-err2.l: New file. * gas/mips/compact-eh-err2.s: New file. 2015-05-22 Catherine Moore <clm@codesourcery.com> include/ * bfdlink.h: Rename eh_frame_hdr to eh_frame_hdr_type. 2015-05-22 Catherine Moore <clm@codesourcery.com> Paul Brook <paul@codesourcery.com> ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Add Compact EH support. * scripttempl/elf.sc: Handle .eh_frame_entry and .gnu_extab sections. 2015-05-22 Catherine Moore <clm@codesourcery.com> ld/testsuite/ * ld-mips-elf/compact-eh.ld: New linker script. * ld-mips-elf/compact-eh1.d: New. * ld-mips-elf/compact-eh1.s: New. * ld-mips-elf/compact-eh1a.s: New. * ld-mips-elf/compact-eh1b.s: New. * ld-mips-elf/compact-eh2.d: New. * ld-mips-elf/compact-eh2.s: New. * ld-mips-elf/compact-eh3.d: New. * ld-mips-elf/compact-eh3.s: New. * ld-mips-elf/compact-eh3a.s: New. * ld-mips-elf/compact-eh4.d: New. * ld-mips-elf/compact-eh5.d: New. * ld-mips-elf/compact-eh6.d: New. * ld-mips-elf/mips-elf.exp: Run new tests.
2015-05-28 23:50:36 +02:00
int eh_header_type;
/* Compact unwinding opcodes, not including the PR byte or LSDA. */
int eh_data_size;
bfd_byte *eh_data;
/* For out of line tables and FDEs. */
symbolS *eh_loc;
int sections;
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
};
/* The list of all FDEs that have been collected. */
extern struct fde_entry *all_fde_data;
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
/* Fake CFI type; outside the byte range of any real CFI insn. */
#define CFI_adjust_cfa_offset 0x100
#define CFI_return_column 0x101
#define CFI_rel_offset 0x102
#define CFI_escape 0x103
#define CFI_signal_frame 0x104
#define CFI_val_encoded_addr 0x105
#define CFI_label 0x106
2011-05-09 Paul Brook <paul@codesourcery.com> bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
2011-05-09 15:17:58 +02:00
Compact EH Support The specification for the Compact EH format is available at: https://github.com/MentorEmbedded/cxx-abi/blob/master/MIPSCompactEH.pdf 2015-05-28 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> Paul Brook <paul@codesourcery.com> bfd/ * bfd-in2.h: Regenerated. * elf-bfd.h (DWARF2_EH_HDR, COMPACT_EH_HDR): Define. (COMPACT_EH_CANT_UNWIND_OPCODE): Define. (dwarf_eh_frame_hdr_info): Move dwarf-specific fields from eh_frame_hdr_info. (compact_eh_frame_hdr_info): Declare. (eh_frame_hdr_info): Redeclare with union for dwarf-specific fields and compact-eh fields. (elf_backend_data): Add cant_unwind_opcode and compact_eh_encoding. (bfd_elf_section_data): Add eh_frame_entry_field. (elf_section_eh_frame_entry): Define. (bfd_elf_parse_eh_frame_entries): Declare. (_bfd_elf_parse_eh_frame_entry): Declare. (_bfd_elf_end_eh_frame_parsing): Declare. (_bfd_elf_write_section_eh_frame_entry): Declare. (_bfd_elf_eh_frame_entry_present): Declare. (_bfd_elf_section_for_symbol): Declare. * elf-eh-frame.c (bfd_elf_discard_eh_frame_entry): New function. (bfd_elf_record_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame_entry): New function. (_bfd_elf_parse_eh_frame): Update hdr_info field references. (cmp_eh_frame_hdr): New function. (add_eh_frame_hdr_terminator): New function. (_bfd_elf_end_eh_frame_parsing): New function. (find_merged_cie): Update hdr_info field references. (_bfd_elf_discard_section_eh_frame): Likewise. (_bfd_elf_discard_section_eh_frame_hdr): Add Compact EH support. (_bfd_elf_eh_frame_entry_present): New function. (_bfd_elf_maybe_strip_eh_frame_hdr): Add Compact EH support. (_bfd_elf_write_section_eh_frame_entry): New function. (_bfd_elf_write_section_eh_frame): Update hdr_info field references. (_bfd_elf_fixup_eh_frame_hdr): New function. (write_compact_eh_frame_hdr): New function. (write_dwarf_eh_frame_hdr): New function. (_bfd_elf_write_section_eh_frame_hdr): Add Compact EH support. * elflink.c (_bfd_elf_section_for_symbol): New function. (elf_section_ignore_discarded_relocs): Add Compact EH support. (elf_link_input_bfd): Likewise. (bfd_elf_final_link): Likewise. (_bfd_elf_gc_mark): Likewise. (bfd_elf_parse_eh_frame_entries): New function. (bfd_elf_gc_sections): Add Compact EH support. (bfd_elf_discard_info): Likewise. * elfxx-mips.c: Include dwarf2.h. (_bfd_mips_elf_compact_eh_encoding): New function. (_bfd_mips_elf_cant_unwind_opcode): New function. * elfxx-mips.h (_bfd_mips_elf_compact_eh_encoding): Declare. (_bfd_mips_elf_cant_unwind_opcode): Declare. (elf_backend_compact_eh_encoding): Define. (elf_backend_cant_unwind_opcode): Define. * elfxx-target.h (elf_backend_compact_eh_encoding): Provide default. (elf_backend_cant_unwind_opcode): Provide default. (elf_backend_data elfNN_bed): Add elf_backend_compact_eh_encoding and elf_backend_cant_unwind_opcode. * section.c (SEC_INFO_TYPE_EH_FRAME_ENTRY): Add definition. gas/ * config/tc-alpha.c (all_cfi_sections): Declare. (s_alpha_ent): Initialize all_cfi_sections. (alpha_elf_md_end): Invoke cfi_set_sections. * config/tc-mips.c (md_apply_fix): Handle BFD_RELOC_NONE. (s_ehword): Use BFD_RELOC_32_PCREL. (mips_fix_adjustable): Handle BFD_RELOC_32_PCREL. (mips_cfi_reloc_for_encoding): New function. * tc-mips.h (DWARF2_FDE_RELOC_SIZE): Redefine. (DWARF2_FDE_RELOC_ENCODING): Define. (tc_cfi_reloc_for_encoding): Define. (mips_cfi_reloc_for_encoding): Define. (tc_compact_eh_opcode_stop): Define. (tc_compact_eh_opcode_pad): Define. * doc/as.texinfo: Document Compact EH extensions. * doc/internals.texi: Likewise. * dw2gencfi.c (EH_FRAME_LINKONCE): Redefine. (tc_cfi_reloc_for_encoding): Provide default. (compact_eh): Declare. (emit_expr_encoded): New function. (get_debugseg_name): Add Compact EH support. (alloc_debugseg_item): Likewise. (cfi_set_sections): New function. (dot_cfi_fde_data): New function. (dot_cfi_personality_id): New function. (dot_cfi_inline_lsda): New function. (cfi_pseudo_table): Add cfi_fde_data, cfi_personality_id, and cfi_inline_lsda. (dot_cfi_personality): Add Compact EH support. (dot_cfi_lsda): Likewise. (dot_cfi_sections): Likewise. (dot_cfi_startproc): Likewise. (get_cfi_seg): Likewise. (output_compact_unwind_data): New function. (output_cfi_insn): Add Compact EH support. (output_cie): Likewise. (output_fde): Likewise. (cfi_finish): Likewise. (cfi_emit_eh_header): New function. (output_eh_header): New function. * dw2gencfi.h (cfi_set_sections): Declare. (SUPPORT_COMPACT_EH): Define. (MULTIPLE_FRAME_SECTIONS): Define. New enumeration to describe the Compact EH header format. (fde_entry): Add new fields personality_id, eh_header_type, eh_data_size, eh_data, eh_loc and sections. (CFI_EMIT_eh_frame, CFI_EMIT_debug_frame, CFI_EMIT_target, CFI_EMIT_eh_frame_compact): Define. 2015-05-22 Catherine Moore <clm@codesourcery.com> Bernd Schmidt <bernds@codesourcery.com> gas/testsuite/ * gas/mips/mips.exp: Run new tests. * gas/mips/compact-eh-1.s: New file. * gas/mips/compact-eh-2.s: New file. * gas/mips/compact-eh-3.s: New file. * gas/mips/compact-eh-4.s: New file. * gas/mips/compact-eh-5.s: New file. * gas/mips/compact-eh-6.s: New file. * gas/mips/compact-eh-7.s: New file. * gas/mips/compact-eh-eb-1.d: New file. * gas/mips/compact-eh-eb-2.d: New file. * gas/mips/compact-eh-eb-3.d: New file. * gas/mips/compact-eh-eb-4.d: New file. * gas/mips/compact-eh-eb-5.d: New file. * gas/mips/compact-eh-eb-6.d: New file. * gas/mips/compact-eh-eb-7.d: New file. * gas/mips/compact-eh-el-1.d: New file. * gas/mips/compact-eh-el-2.d: New file. * gas/mips/compact-eh-el-3.d: New file. * gas/mips/compact-eh-el-4.d: New file. * gas/mips/compact-eh-el-5.d: New file. * gas/mips/compact-eh-el-6.d: New file. * gas/mips/compact-eh-el-7.d: New file. * gas/mips/compact-eh-err1.l: New file. * gas/mips/compact-eh-err1.s: New file. * gas/mips/compact-eh-err2.l: New file. * gas/mips/compact-eh-err2.s: New file. 2015-05-22 Catherine Moore <clm@codesourcery.com> include/ * bfdlink.h: Rename eh_frame_hdr to eh_frame_hdr_type. 2015-05-22 Catherine Moore <clm@codesourcery.com> Paul Brook <paul@codesourcery.com> ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Add Compact EH support. * scripttempl/elf.sc: Handle .eh_frame_entry and .gnu_extab sections. 2015-05-22 Catherine Moore <clm@codesourcery.com> ld/testsuite/ * ld-mips-elf/compact-eh.ld: New linker script. * ld-mips-elf/compact-eh1.d: New. * ld-mips-elf/compact-eh1.s: New. * ld-mips-elf/compact-eh1a.s: New. * ld-mips-elf/compact-eh1b.s: New. * ld-mips-elf/compact-eh2.d: New. * ld-mips-elf/compact-eh2.s: New. * ld-mips-elf/compact-eh3.d: New. * ld-mips-elf/compact-eh3.s: New. * ld-mips-elf/compact-eh3a.s: New. * ld-mips-elf/compact-eh4.d: New. * ld-mips-elf/compact-eh5.d: New. * ld-mips-elf/compact-eh6.d: New. * ld-mips-elf/mips-elf.exp: Run new tests.
2015-05-28 23:50:36 +02:00
/* By default emit .eh_frame only, not .debug_frame. */
#define CFI_EMIT_eh_frame (1 << 0)
#define CFI_EMIT_debug_frame (1 << 1)
#define CFI_EMIT_target (1 << 2)
#define CFI_EMIT_eh_frame_compact (1 << 3)
#endif /* DW2GENCFI_H */