PR ld/12365
* cofflink.c (bfd_coff_link_input_bfd): Check for and warn about
references to symbols defined in discarded sections.
ld/ChangeLog:
PR ld/12365
* scripttempl/pe.sc (__rt_psrelocs_start): New symbol definition.
(__rt_psrelocs_end): Likewise.
(__rt_psrelocs_size): Likewise difference between the above.
(__RUNTIME_PSEUDO_RELOC_LIST_END__): Move outside .rdata section
immediately after end of pseudo-reloc data.
(___RUNTIME_PSEUDO_RELOC_LIST_END___): Likewise.
(__RUNTIME_PSEUDO_RELOC_LIST__): Move outside .rdata section and
calculate backward from list end.
(___RUNTIME_PSEUDO_RELOC_LIST___): Likewise.
* scripttempl/pep.sc: Likewise.
ld/testsuite/ChangeLog:
PR ld/12365
* ld-plugin/plugin-7.d: Allow underscore in error message.
* ld-plugin/plugin-8.d: Likewise.
* vms-alpha.c (evax_section_flags): Remove SEC_IN_MEMORY.
(_bfd_vms_slurp_egsd): Rename old_flags to vms_flags. Handle
any code section. Add comments.
(alpha_vms_object_p): Use void * instead of PTR.
(alpha_vms_create_eisd_for_section): Fix test for setting DZRO.
(build_module_list): Guard against no DST section. Add comments.
(alpha_vms_link_output_symbol): Discard undefined symbols.
(alpha_vms_get_section_contents): Simply memcpy if the section was
already loaded. Fix typo.
(vms_new_section_hook): Use void * instead of PTR.
(vms_alpha_vec): Ditto.
* elf32-arm.c (cortex_a8_erratum_scan): If the stub is a Thumb
branch to a PLT entry, redirect it to the PLT's Thumb entry point.
ld/testsuite/
* ld-arm/cortex-a8-fix-b-plt.s, ld-arm/cortex-a8-fix-b-plt.d,
ld-arm/cortex-a8-fix-bcc-plt.s, ld-arm/cortex-a8-fix-bcc-plt.d,
ld-arm/cortex-a8-fix-bl-plt.s, ld-arm/cortex-a8-fix-bl-plt.d,
ld-arm/cortex-a8-fix-blx-plt.s, ld-arm/cortex-a8-fix-blx-plt.d,
ld-arm/cortex-a8-fix-plt.ld: New tests.
* ld-arm/arm-elf.exp: Run them.
* elf32-tic6x.c (elf32_tic6x_final_link): New function.
(elf32_tic6x_merge_attributes): Do not warn for PID or PIC
mismatch. Choose the lower of the two values.
(bfd_elf32_bfd_final_link): New macro.
ld/testsuite/
* ld-tic6x/shared-nopic.d: New test.
* ld-tic6x/shared-nopid.d: New test.
* ld-tic6x/attr-pid-21.d: Don't expect a warning; check readelf
output instead.
* ld-tic6x/attr-pid-12.d: Likewise.
* ld-tic6x/attr-pic-01.d: Likewise.
* ld-tic6x/attr-pic-10.d: Likewise.
* ld-tic6x/attr-pid-01.d: Likewise.
* ld-tic6x/attr-pid-10.d: Likewise.
* ld-tic6x/attr-pid-02.d: Likewise.
* ld-tic6x/attr-pid-20.d: Likewise.
* ld-tic6x/got-reloc-inrange.d: Pass -mpic and -mpid options to gas.
(dwcfi_hash): New static hash variable.
(get_debugseg_name): New.
(alloc_debugseg_item): New.
(make_debug_seg): New.
(dwcfi_hash_insert): New.
(dwcfi_hash_find): New.
(dwcfi_hash_find_or_make): New.
(cfi_insn_data): New member cur_seg.
(cie_entry): Likewise.
(fde_entry): New cseg and handled members.
(alloc_fde_entry): Initialize cseg member.
(alloc_cfi_insn_data): Initialize cur_seg member.
(dot_cfi_sections): Compare for beginning of
section names via strncmp.
(get_cfi_seg): New.
(cfi_finish): Treat link-once sections.
(is_now_linkonce_segment): New local helper.
(output_cie): Ignore cie entries not member of current
segment.
(output_fde): Likewise.
(select_cie_for_fde): Likewise.
(cfi_change_reg_numbers): Add new argument for current segment
and ignore insn elements, if not part of current segment.
* ehopt.c (get_cie_info): Use strncmp for
section name matching.
(heck_eh_frame): Likewise.
* coffcode.h (sec_to_styp_flags): Allow linkonce for
debugging sections.
* scripttempl/pe.sc: Handle .eh_frame($|.)* sections.
* scripttempl/pep.sc: Likewise.
* ld-pe/pe.exp: Add cfi/cfi32 tests.
* ld-pe/cfi.d: New.
* ld-pe/cfi32.d: New.
* ld-pe/cfia.s: New.
* ld-pe/cfib.s: New.
PR ld/12696
include/
* bfdlink.h (ENUM_BITFIELD): Define.
(struct bfd_link_hash_entry): Make "type" a bitfield. Add "non_ir_ref".
(struct bfd_link_callbacks <notice>): Pass bfd_link_hash_entry pointer
rather than "name".
bfd/
* coff-aux.c (coff_m68k_aux_link_add_one_symbol): Update "notice" call.
* linker.c (_bfd_link_hash_newfunc): Clear bitfields.
(_bfd_generic_link_add_one_symbol): Update "notice" call.
* elflink.c (_bfd_elf_merge_symbol): Don't skip weak redefs when
it is a redef of an IR symbol in a real BFD.
ld/
* ldmain.c (notice): Delete "name" param, add "h".
* plugin.c (plugin_notice): Likewise. Set non_ir_ref. Handle
redefinitions of IR symbols in real BFDs.
(plugin_multiple_definition, plugin_multiple_common): Delete.
(non_ironly_hash, init_non_ironly_hash): Delete.
(is_visible_from_outside): Traverse entry_symbol chain.
(get_symbols): Use non_ir_ref flag rather than hash lookup.
* hash.c (bfd_default_hash_table_size): Make it an unsigned long.
(bfd_hash_table_init_n): Overflow checking.
(bfd_hash_set_default_size): Return current size. Take unsigned long
arg. Add 65537 to hash_size primes.
* bfd-in.h (bfd_hash_set_default_size): Update prototype.
* bfd-in2.h: Regenerate.
gas/
* hash.c (set_gas_hash_table_size): Use bfd_hash_set_default_size.
(hash_new_sized): New function, split out from..
(hash_new): ..here.
ld/
* ld.h (ld_config_type <hash_table_size>): Make it an unsigned long.
bfd/
* elfcode.h (elf_slurp_symbol_table): Put common plugin IR symbols
in their own common section.
* elflink.c (elf_link_add_object_symbols): Likewise.
* linker.c (generic_link_check_archive_element): Don't lose flags
if common section is pre-existing.
(_bfd_generic_link_add_one_symbol): Likewise.
ld/
* ldfile.c (ldfile_try_open_bfd): Move code creating and switching
to plugin IR BFD..
* ldmain.c (add_archive_element): ..and similar code here..
* plugin.c (plugin_maybe_claim): ..to here. New function.
(plugin_call_claim_file): Make static.
(asymbol_from_plugin_symbol): Set ELF st_shndx for common syms.
(plugin_multiple_common): New function.
(plugin_call_all_symbols_read): Hook in plugin_multiple_common.
* plugin.h (plugin_call_claim_file): Don't declare.
(plugin_maybe_claim): Declare.
* elf64-ppc.c (ppc64_elf_get_synthetic_symtab): Do not check for
SEC_LOAD.
gdb/
Fix convert_code_addr_to_desc_addr for ppc64 files after eu-strip.
* elfread.c (elf_symfile_read): New variable synth_abfd, pass it to
bfd_get_synthetic_symtab.
* jit.c (jit_register_code): Pass NULL to the new parameter parent.
* machoread.c (macho_add_oso_symfile): Pass main_objfile to the new
parameter parent, remove the call to add_separate_debug_objfile.
* solib.c (solib_read_symbols): Pass NULL to the new parameter parent.
* symfile-mem.c (symbol_file_add_from_memory): Likewise.
* symfile.c (symbol_file_add_with_addrs_or_offsets): New parameter
parent, new comment for it, call add_separate_debug_objfile for it.
(symbol_file_add_separate): Pass objfile as the parameter parent,
remove the call to add_separate_debug_objfile.
(symbol_file_add_from_bfd): New parameter parent, pass it.
(symbol_file_add): Pass NULL to the new parameter parent.
* symfile.h (symbol_file_add_from_bfd): New parameter parent.
gdb/testsuite/
* gdb.base/eu-strip-infcall.c: New file.
* gdb.base/eu-strip-infcall.exp: New file.
* peXXigen.c (_bfd_XXi_final_link_postscripte): Sort pdata in temporary
buffer and use rawsize for sorting.
* coffcode.h (coff_compute_section_file_positions): Set rawsize
before doing alignment.
* tic6x.h (R_C6000_JUMP_SPLOT, R_C6000_EHTYPE,
R_C6000_PCR_H16, R_C6000_PCR_L16): New relocs.
(SHN_TIC6X_SCOMMON): Define.
bfd/
* elf32-tic6x.h (struct elf32_tic6x_params): New.
(elf32_tic6x_setup): Declare.
* elf32-tic6x.c: Include <limits.h>.
(ELF_DYNAMIC_LINKER, DEFAULT_STACK_SIZE, PLT_ENTRY_SIZE): Define.
(struct elf32_tic6x_link_hash_table, struct elf32_link_hash_entry):
New structures.
(elf32_tic6x_link_hash_table, is_tic6x_elf): New macros.
(tic6x_elf_scom_section, tic6x_elf_scom_symbol,
tic6x_elf_scom_symbol_ptr): New static variables.
(elf32_tic6x_howto_table, elf32_tic6x_howto_table_rel,
elf32_tic6x_reloc_map): Add R_C6000_JUMP_SLOT, R_C6000_EHTYPE,
R_C6000_PCR_H16 and R_C6000_PCR_L16.
(elf32_tic6x_link_hash_newfunc, elf32_tic6x_link_hash_table_create,
elf32_tic6x_link_hash_table_free, elf32_tic6x_setup,
elf32_tic6x_using_dsbt, elf32_tic6x_install_rela,
elf32_tic6x_create_dynamic_sections, elf32_tic6x_make_got_dynreloc,
elf32_tic6x_finish_dynamic_symbol, elf32_tic6x_gc_sweep_hook,
elf32_tic6x_adjust_dynamic_symbol): New static functions.
(elf32_tic6x_relocate_section): For R_C6000_PCR_S21, convert branches
to weak symbols as required by the ABI.
Handle GOT and DSBT_INDEX relocs, and copy relocs to the output file
as needed when generating DSBT output.
(elf32_tic6x_check_relocs, elf32_tic6x_add_symbol_hook,
elf32_tic6x_symbol_processing, elf32_tic6x_section_from_bfd_section,
elf32_tic6x_allocate_dynrelocs, elf32_tic6x_size_dynamic_sections,
elf32_tic6x_always_size_sections, elf32_tic6x_modify_program_headers,
elf32_tic6x_finish_dynamic_sections, elf32_tic6x_plt_sym_val,
elf32_tic6x_copy_private_data, elf32_tic6x_link_omit_section_dynsym):
New static functions.
(ELF_MAXPAGESIZE): Define to 0x1000.
(bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_link_hash_table_create,
bfd_elf32_bfd_link_hash_table_free, elf_backend_can_refcount,
elf_backend_want_got_plt, elf_backend_want_dynbss,
elf_backend_plt_readonly, elf_backend_got_header_size,
elf_backend_gc_sweep_hook, elf_backend_modify_program_headers,
elf_backend_create_dynamic_sections, elf_backend_adjust_dynamic_symbol,
elf_backend_check_relocs, elf_backend_add_symbol_hook,
elf_backend_symbol_processing, elf_backend_link_output_symbol_hook,
elf_backend_section_from_bfd_section,
elf_backend_finish_dynamic_symbol, elf_backend_always_size_sections,
elf32_tic6x_size_dynamic_sections, elf_backend_finish_dynamic_sections,
elf_backend_omit_section_dynsym, elf_backend_plt_sym_val): Define.
* bfd/reloc.c (BFD_RELOC_C6000_JUMP_SLOT, BFD_RELOC_C6000_EHTYPE,
BFD_RELOC_C6000_PCR_H16, BFD_RELOC_C6000_PCR_S16): Add.
* bfd/bfd-in2.h: Regenerate.
* bfd/libbfd.h: Regenerate.
* config.bfd: Accept tic6x-*-* instead of tic6x-*-elf.
gas/
* config/tc-tic6x.c (sbss_section, scom_section, scom_symbol): New
static variables.
(md_begin): Initialize them.
(s_tic6x_scomm): New static function.
(md_pseudo_table): Add "scomm".
(tc_gen_reloc): Really undo all adjustments made by
bfd_install_relocation.
* doc/c-tic6x.texi: Document the .scomm directive.
gas/testsuite/
* gas/tic6x/scomm-directive-1.s: New test.
* gas/tic6x/scomm-directive-1.d: New test.
* gas/tic6x/scomm-directive-2.s: New test.
* gas/tic6x/scomm-directive-2.d: New test.
* gas/tic6x/scomm-directive-3.s: New test.
* gas/tic6x/scomm-directive-3.d: New test.
* gas/tic6x/scomm-directive-4.s: New test.
* gas/tic6x/scomm-directive-4.d: New test.
* gas/tic6x/scomm-directive-5.s: New test.
* gas/tic6x/scomm-directive-5.d: New test.
* gas/tic6x/scomm-directive-6.s: New test.
* gas/tic6x/scomm-directive-6.d: New test.
* gas/tic6x/scomm-directive-7.s: New test.
* gas/tic6x/scomm-directive-7.d: New test.
* gas/tic6x/scomm-directive-8.s: New test.
* gas/tic6x/scomm-directive-8.d: New test.
ld/
* emulparams/elf32_tic6x_le.sh (BIG_OUTPUT_FORMAT, EXTRA_EM_FILE,
GENERATE_SHLIB_SCRIPT): New defines.
(TEXT_START_ADDR): Define differently depending on target.
(.got): Redefine to include "*(.dsbt)".
(SDATA_START_SYMBOLS): Remove, replace with
(OTHER_GOT_SYMBOLS): New.
(OTHER_BSS_SECTIONS): Define only for ELF targets.
* emultempl/tic6xdsbt.em: New file.
* gen-doc.texi: Set C6X.
* ld.texinfo: Likewise.
(Options specific to C6X uClinux targets): New section.
binutils/
* readelf.c (get_symbol_index_type): Handle SCOM for TIC6X.
(dump_relocations): Likewise.
binutils/testsuite/
* lib/binutils-common.exp (is_elf_format): Accept tic6x*-*-uclinux*.
ld/testsuite/
* ld-scripts/crossref.exp: Add CFLAGS for tic6x*-*-*.
* ld-elf/sec-to-seg.exp: Remove tic6x from list of targets defining
pagesize to 1.
* ld-tic6x/tic6x.exp: Add support for DSBT shared library/executable
linking tests.
* ld-tic6x/dsbt.ld: New linker script.
* ld-tic6x/dsbt-be.ld: New linker script.
* ld-tic6x/dsbt-overflow.ld: New linker script.
* ld-tic6x/dsbt-inrange.ld: New linker script.
* ld-tic6x/shlib-1.s: New test.
* ld-tic6x/shlib-2.s: New test.
* ld-tic6x/shlib-app-1r.s: New test.
* ld-tic6x/shlib-app-1.s: New test.
* ld-tic6x/shlib-1.sd: New test.
* ld-tic6x/shlib-1.dd: New test.
* ld-tic6x/shlib-app-1.rd: New test.
* ld-tic6x/shlib-app-1rb.rd: New test.
* ld-tic6x/shlib-app-1.sd: New test.
* ld-tic6x/static-app-1rb.od: New test.
* ld-tic6x/shlib-app-1.dd: New test.
* ld-tic6x/shlib-app-1rb.sd: New test.
* ld-tic6x/static-app-1b.od: New test.
* ld-tic6x/static-app-1r.od: New test.
* ld-tic6x/shlib-1rb.rd: New test.
* ld-tic6x/shlib-app-1rb.dd: New test.
* ld-tic6x/shlib-1rb.sd: New test.
* ld-tic6x/shlib-1rb.dd: New test.
* ld-tic6x/shlib-app-1b.od: New test.
* ld-tic6x/tic6x.exp: New test.
* ld-tic6x/static-app-1rb.rd: New test.
* ld-tic6x/shlib-app-1r.od: New test.
* ld-tic6x/static-app-1.od: New test.
* ld-tic6x/static-app-1b.rd: New test.
* ld-tic6x/static-app-1r.rd: New test.
* ld-tic6x/static-app-1rb.sd: New test.
* ld-tic6x/static-app-1b.sd: New test.
* ld-tic6x/static-app-1rb.dd: New test.
* ld-tic6x/static-app-1r.sd: New test.
* ld-tic6x/static-app-1b.dd: New test.
* ld-tic6x/shlib-1b.rd: New test.
* ld-tic6x/static-app-1r.dd: New test.
* ld-tic6x/shlib-app-1b.rd: New test.
* ld-tic6x/shlib-1r.rd: New test.
* ld-tic6x/shlib-app-1r.rd: New test.
* ld-tic6x/shlib-1b.sd: New test.
* ld-tic6x/static-app-1.rd: New test.
* ld-tic6x/shlib-app-1b.sd: New test.
* ld-tic6x/shlib-1r.sd: New test.
* ld-tic6x/shlib-1b.dd: New test.
* ld-tic6x/shlib-app-1r.sd: New test.
* ld-tic6x/shlib-app-1b.dd: New test.
* ld-tic6x/shlib-1r.dd: New test.
* ld-tic6x/static-app-1.sd: New test.
* ld-tic6x/shlib-app-1r.dd: New test.
* ld-tic6x/static-app-1.dd: New test.
* ld-tic6x/shlib-noindex.rd: New test.
* ld-tic6x/shlib-noindex.dd: New test.
* ld-tic6x/shlib-noindex.sd: New test.
* ld-tic6x/got-reloc-local-1.s: New test.
* ld-tic6x/got-reloc-local-2.s: New test.
* ld-tic6x/got-reloc-local-r.d: New test.
* ld-tic6x/got-reloc-global.s: New test.
* ld-tic6x/got-reloc-global-addend-1.d: New test.
* ld-tic6x/got-reloc-global-addend-1.s: New test.
* ld-tic6x/got-reloc-global-addend-2.d: New test.
* ld-tic6x/got-reloc-inrange.d: New test.
* ld-tic6x/got-reloc-overflow.d: New test.
* ld-tic6x/got-reloc-global-addend-2.s: New test.
* ld-tic6x/dsbt-index-error.d: New test.
* ld-tic6x/dsbt-index.d: New test.
* ld-tic6x/dsbt-index.s: New test.
* ld-tic6x/shlib-app-1.od: New test.
* ld-tic6x/shlib-app-1rb.od: New test.
* ld-tic6x/shlib-1.rd: New test.
* ld-tic6x/weak.d: New test.
* ld-tic6x/weak-be.d: New test.
* ld-tic6x/weak.s: New test.
* ld-tic6x/weak-data.d: New test.
* ld-tic6x/common.d: New test.
* ld-tic6x/common.ld: New test.
* ld-tic6x/common.s: New test.
* vms-alpha.c (evax_section_flags): Make $CODE$ section read-only.
Minor reordering.
(alpha_vms_create_eisd_for_section): Make code sections read-only.
2011-03-22 Eric B. Weddington <eric.weddington@atmel.com>
* archures.c: Add AVR XMEGA architecture information.
* cpu-avr.c (arch_info_struct): Likewise.
* elf32-avr.c (bfd_elf_avr_final_write_processing): Likewise.
(elf32_avr_object_p): Likewise.
/gas:
2011-03-22 Eric B. Weddington <eric.weddington@atmel.com>
* config/tc-avr.c (struct avr_opcodes_s): Add opcode field.
(AVR_INSN): Change definition to match.
(avr_opcodes): Likewise, change to match.
(mcu_types): Add XMEGA architecture names and new XMEGA device names.
(md_show_usage): Add XMEGA architecture names.
(avr_operand): Add 'E' constraint for DES instruction of XMEGA devices.
Add support for SPM Z+ instruction.
* doc/c-avr.texi: Add documentation for XMEGA architectures and
devices.
/include/opcode:
2011-03-22 Eric B. Weddington <eric.weddington@atmel.com>
* avr.h (AVR_ISA_SPMX,AVR_ISA_DES,AVR_ISA_M256,AVR_ISA_XMEGA):
New instruction set flags.
(AVR_INSN): Add new instructions for SPM Z+, DES for XMEGA.
/ld:
2011-03-22 Eric B. Weddington <eric.weddington@atmel.com>
* Makefile.am (ALL_EMULATION_SOURCES): Add AVR XMEGA architectures.
(eavrxmega?.c): Likewise.
* configure.tgt (targ_extra_emuls): Likewise.
* emulparams/avrxmega1.sh: New file.
* emulparams/avrxmega2.sh: Likewise.
* emulparams/avrxmega3.sh: Likewise.
* emulparams/avrxmega4.sh: Likewise.
* emulparams/avrxmega5.sh: Likewise.
* emulparams/avrxmega6.sh: Likewise.
* emulparams/avrxmega7.sh: Likewise.
* emultempl/avrelf.em (avr_elf_${EMULATION_NAME}_before_allocation):
Add avrxmega6, avrxmega7 to list of architectures for no stubs.
/opcodes:
2011-03-22 Eric B. Weddington <eric.weddington@atmel.com>
* avr-dis.c (avr_operand): Add opcode_str parameter. Check for
post-increment to support LPM Z+ instruction. Add support for 'E'
constraint for DES instruction.
(print_insn_avr): Adjust calls to avr_operand. Rename variable.
* arm.h (R_ARM_IRELATIVE): New relocation.
bfd/
* reloc.c (BFD_RELOC_ARM_IRELATIVE): New relocation.
* bfd-in2.h: Regenerate.
* elf32-arm.c (elf32_arm_howto_table_2): Rename existing definition
to elf32_arm_howto_table_3 and replace with a single R_ARM_IRELATIVE
entry.
(elf32_arm_howto_from_type): Update accordingly.
(elf32_arm_reloc_map): Map BFD_RELOC_ARM_IRELATIVE to R_ARM_IRELATIVE.
(elf32_arm_reloc_name_lookup): Handle elf32_arm_howto_table_3.
(arm_plt_info): New structure, split out from elf32_arm_link_hash_entry
with an extra noncall_refcount field.
(arm_local_iplt_info): New structure.
(elf_arm_obj_tdata): Add local_iplt.
(elf32_arm_local_iplt): New accessor macro.
(elf32_arm_link_hash_entry): Replace plt_thumb_refcount,
plt_maybe_thumb_refcount and plt_got_offset with an arm_plt_info.
Change tls_type to a bitfield and add is_iplt.
(elf32_arm_link_hash_newfunc): Update accordingly.
(elf32_arm_allocate_local_sym_info): New function.
(elf32_arm_create_local_iplt): Likewise.
(elf32_arm_get_plt_info): Likewise.
(elf32_arm_plt_needs_thumb_stub_p): Likewise.
(elf32_arm_get_local_dynreloc_list): Likewise.
(create_ifunc_sections): Likewise.
(elf32_arm_copy_indirect_symbol): Update after the changes to
elf32_arm_link_hash_entry. Assert the is_iplt has not yet been set.
(arm_type_of_stub): Add an st_type argument. Use elf32_arm_get_plt_info
to get PLT information. Assert that all STT_GNU_IFUNC references
are turned into PLT references.
(arm_build_one_stub): Pass the symbol type to
elf32_arm_final_link_relocate.
(elf32_arm_size_stubs): Pass the symbol type to arm_type_of_stub.
(elf32_arm_allocate_irelocs): New function.
(elf32_arm_add_dynreloc): In static objects, use .rel.iplt for
all R_ARM_IRELATIVE.
(elf32_arm_allocate_plt_entry): New function.
(elf32_arm_populate_plt_entry): Likewise.
(elf32_arm_final_link_relocate): Add an st_type parameter.
Set srelgot to null for static objects. Use separate variables
to record which st_value and st_type should be used when generating
a dynamic relocation. Use elf32_arm_get_plt_info to find the
symbol's PLT information, setting has_iplt_entry, splt,
plt_offset and gotplt_offset accordingly. Check whether
STT_GNU_IFUNC symbols should resolve to an .iplt entry, and change
the relocation target accordingly. Broaden assert to include
.iplts. Don't set sreloc for static relocations. Assert that
we only generate dynamic R_ARM_RELATIVE relocations for R_ARM_ABS32
and R_ARM_ABS32_NOI. Generate R_ARM_IRELATIVE relocations instead
of R_ARM_RELATIVE relocations if the target is an STT_GNU_IFUNC
symbol. Pass the symbol type to arm_type_of_stub. Conditionally
resolve GOT references to the .igot.plt entry.
(elf32_arm_relocate_section): Update the call to
elf32_arm_final_link_relocate.
(elf32_arm_gc_sweep_hook): Use elf32_arm_get_plt_info to get PLT
information. Treat R_ARM_REL32 and R_ARM_REL32_NOI as call
relocations in shared libraries and relocatable executables.
Count non-call PLT references. Use elf32_arm_get_local_dynreloc_list
to get the list of dynamic relocations for a local symbol.
(elf32_arm_check_relocs): Always create ifunc sections. Set isym
at the same time as setting h. Use elf32_arm_allocate_local_sym_info
to allocate local symbol information. Treat R_ARM_REL32 and
R_ARM_REL32_NOI as call relocations in shared libraries and
relocatable executables. Record PLT information for local
STT_GNU_IFUNC functions as well as global functions. Count
non-call PLT references. Use elf32_arm_get_local_dynreloc_list
to get the list of dynamic relocations for a local symbol.
(elf32_arm_adjust_dynamic_symbol): Handle STT_GNU_IFUNC symbols.
Don't remove STT_GNU_IFUNC PLTs unless all references have been
removed. Update after the changes to elf32_arm_link_hash_entry.
(allocate_dynrelocs_for_symbol): Decide whether STT_GNU_IFUNC PLT
entries should live in .plt or .iplt. Check whether the .igot.plt
and .got entries can be combined. Use elf32_arm_allocate_plt_entry
to allocate .plt and .(i)got.plt entries. Detect which .got
entries will need R_ARM_IRELATIVE relocations and use
elf32_arm_allocate_irelocs to allocate them. Likewise other
non-.got dynamic relocations.
(elf32_arm_size_dynamic_sections): Allocate .iplt, .igot.plt
and dynamic relocations for local STT_GNU_IFUNC symbols.
Check whether the .igot.plt and .got entries can be combined.
Detect which .got entries will need R_ARM_IRELATIVE relocations
and use elf32_arm_allocate_irelocs to allocate them. Use stashed
section pointers intead of strcmp checks. Handle iplt and igotplt.
(elf32_arm_finish_dynamic_symbol): Use elf32_arm_populate_plt_entry
to fill in .plt, .got.plt and .rel(a).plt entries. Point
STT_GNU_IFUNC symbols at an .iplt entry if non-call relocations
resolve to it.
(elf32_arm_output_plt_map_1): New function, split out from
elf32_arm_output_plt_map. Handle .iplt entries. Use
elf32_arm_plt_needs_thumb_stub_p.
(elf32_arm_output_plt_map): Call it.
(elf32_arm_output_arch_local_syms): Add mapping symbols for
local .iplt entries.
(elf32_arm_swap_symbol_in): Handle Thumb STT_GNU_IFUNC symbols.
(elf32_arm_swap_symbol_out): Likewise.
(elf32_arm_add_symbol_hook): New function.
(elf_backend_add_symbol_hook): Define for all targets.
opcodes/
* arm-dis.c (get_sym_code_type): Treat STT_GNU_IFUNCs as code.
gas/
* config/tc-arm.c (md_pcrel_from_section): Use S_FORCE_RELOC to
determine whether a relocation is needed.
(md_apply_fix, arm_apply_sym_value): Likewise.
ld/testsuite/
* ld-arm/ifunc-1.s, ld-arm/ifunc-1.dd, ld-arm/ifunc-1.gd,
ld-arm/ifunc-1.rd, ld-arm/ifunc-2.s, ld-arm/ifunc-2.dd,
ld-arm/ifunc-2.gd, ld-arm/ifunc-2.rd, ld-arm/ifunc-3.s,
ld-arm/ifunc-3.dd, ld-arm/ifunc-3.gd, ld-arm/ifunc-3.rd,
ld-arm/ifunc-4.s, ld-arm/ifunc-4.dd, ld-arm/ifunc-4.gd,
ld-arm/ifunc-4.rd, ld-arm/ifunc-5.s, ld-arm/ifunc-5.dd,
ld-arm/ifunc-5.gd, ld-arm/ifunc-5.rd, ld-arm/ifunc-6.s,
ld-arm/ifunc-6.dd, ld-arm/ifunc-6.gd, ld-arm/ifunc-6.rd,
ld-arm/ifunc-7.s, ld-arm/ifunc-7.dd, ld-arm/ifunc-7.gd,
ld-arm/ifunc-7.rd, ld-arm/ifunc-8.s, ld-arm/ifunc-8.dd,
ld-arm/ifunc-8.gd, ld-arm/ifunc-8.rd, ld-arm/ifunc-9.s,
ld-arm/ifunc-9.dd, ld-arm/ifunc-9.gd, ld-arm/ifunc-9.rd,
ld-arm/ifunc-10.s, ld-arm/ifunc-10.dd, ld-arm/ifunc-10.gd,
ld-arm/ifunc-10.rd, ld-arm/ifunc-11.s, ld-arm/ifunc-11.dd,
ld-arm/ifunc-11.gd, ld-arm/ifunc-11.rd, ld-arm/ifunc-12.s,
ld-arm/ifunc-12.dd, ld-arm/ifunc-12.gd, ld-arm/ifunc-12.rd,
ld-arm/ifunc-13.s, ld-arm/ifunc-13.dd, ld-arm/ifunc-13.gd,
ld-arm/ifunc-13.rd, ld-arm/ifunc-14.s, ld-arm/ifunc-14.dd,
ld-arm/ifunc-14.gd, ld-arm/ifunc-14.rd, ld-arm/ifunc-15.s,
ld-arm/ifunc-15.dd, ld-arm/ifunc-15.gd, ld-arm/ifunc-15.rd,
ld-arm/ifunc-16.s, ld-arm/ifunc-16.dd, ld-arm/ifunc-16.gd,
ld-arm/ifunc-16.rd, ld-arm/ifunc-dynamic.ld,
ld-arm/ifunc-static.ld: New tests.
* ld-arm/farcall-group.d, ld-arm/farcall-group-size2.d,
ld-arm/farcall-mixed-lib-v4t.d, ld-arm/farcall-mixed-lib.d: Update
for new stub hashes.
* ld-arm/arm-elf.exp: Run them.
* internal.h (elf_internal_sym): Add st_target_internal.
* arm.h (arm_st_branch_type): New enum.
(ARM_SYM_BRANCH_TYPE): New macro.
bfd/
* elf-bfd.h (elf_link_hash_entry): Add target_internal.
* elf.c (swap_out_syms): Set st_target_internal for each
Elf_Internal_Sym.
* elfcode.h (elf_swap_symbol_in): Likewise.
* elf32-i370.c (i370_elf_finish_dynamic_sections): Likewise.
* elf32-sh-symbian.c (sh_symbian_relocate_section): Likewise.
* elf64-sparc.c (elf64_sparc_output_arch_syms): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_size_dynamic_sections): Likewise.
* elflink.c (elf_link_output_extsym): Likewise.
(bfd_elf_final_link): Likewise.
(elf_link_add_object_symbols): Copy st_target_internal
to the hash table if we see a definition.
(_bfd_elf_copy_link_hash_symbol_type): Copy target_internal.
* elf32-arm.c (elf32_arm_stub_hash_entry): Replace st_type with
a branch_type field.
(a8_erratum_fix, a8_erratum_reloc): Likewise.
(arm_type_of_stub): Replace actual_st_type with an
actual_branch_type parameter.
(arm_build_one_stub): Use branch types rather than st_types to
determine the type of branch.
(cortex_a8_erratum_scan): Likewise.
(elf32_arm_size_stubs): Likewise.
(bfd_elf32_arm_process_before_allocation): Likewise.
(allocate_dynrelocs_for_symbol): Likewise.
(elf32_arm_finish_dynamic_sections): Likewise.
(elf32_arm_final_link_relocate): Replace sym_flags parameter with
a branch_type parameter.
(elf32_arm_relocate_section): Update call accordingly.
(elf32_arm_adjust_dynamic_symbol): Don't check STT_ARM_TFUNC.
(elf32_arm_output_map_sym): Initialize st_target_internal.
(elf32_arm_output_stub_sym): Likewise.
(elf32_arm_symbol_processing): Delete.
(elf32_arm_swap_symbol_in): Convert STT_ARM_TFUNCs into STT_FUNCs.
Use st_target_internal to record the branch type.
(elf32_arm_swap_symbol_out): Use st_target_internal to test for
Thumb functions.
(elf32_arm_is_function_type): Delete.
(elf_backend_symbol_processing): Likewise.
(elf_backend_is_function_type): Likewise.
gas/
* config/tc-arm.c (arm_adjust_symtab): Set the branch type
for Thumb symbols.
ld/
* emultempl/armelf.em (gld${EMULATION_NAME}_finish): Check
eh->target_internal.
opcodes/
* arm-dis.c (get_sym_code_type): Don't check for STT_ARM_TFUNC.
Use branch types instead.
(print_insn): Likewise.
* elf32-arm.c (elf32_arm_check_relocs): Use call_reloc_p,
may_need_local_target_p and may_become_dynamic_p to classify
the relocation type. Don't check info->symbolic or h->def_regular
when deciding whether to record a potential dynamic reloc.
Don't treat potential dynamic relocs as PLT references.
(elf32_arm_gc_sweep_hook): Update to match. Assert that we don't
try to make the PLT reference count go negative.
ld/testsuite/
* ld-arm/arm-lib-plt-2a.s, ld-arm/arm-lib-plt-2b.s,
ld-arm/arm-lib-plt-2.dd, ld-arm/arm-lib-plt-2.rd: New tests.
* ld-arm/arm-elf.exp: Run them.
* elf32-arm.c (elf32_arm_final_link_relocate): Always fill in the
GOT entry here, rather than leaving it to finish_dynamic_symbol.
Only create a dynamic relocation for local references if
info->shared.
(allocate_dynrelocs_for_symbol): Update dynamic relocation
allocation accordingly.
(elf32_arm_finish_dynamic_symbol): Don't initialise the GOT entry here.
ld/testsuite/
* ld-arm/exec-got-1a.s, ld-arm/exec-got-1b.s, ld-arm/exec-got-1.d,
ld-arm/unresolved-1.s, ld-arm/unresolved-1.d,
ld-arm/unresolved-1-dyn.d: New tests.
* ld-arm/arm-elf.exp: Run them.
* elf32-arm.c (elf32_arm_allocate_dynrelocs): New function.
(elf32_arm_add_dynreloc): Likewise.
(elf32_arm_adjust_dynamic_symbol): Use elf32_arm_allocate_dynrelocs
to allocate dynamic relocations.
(elf32_arm_size_dynamic_sections): Likewise.
(allocate_dynrelocs): Likewise. Rename to
allocate_dynrelocs_for_symbol.
(elf32_arm_final_link_relocate): Use elf32_arm_add_dynreloc to
create dynamic relocations.
(elf32_arm_finish_dynamic_symbol): Likewise.
(ppc64_elf_link_just_syms): New function.
(opd_entry_value): Don't assume big-endian host.
(get_r2off): New function.
(ppc_build_one_stub, ppc_size_one_stub): Use it here.
Alan Modra
Dave Korn
H.J. Lu
Tristan Gingold
Richard Sandiford
Bernd Schmidt
Paul Brook
Tom Tromey
Mike Frysinger
Nick Clifton
Jan Kratochvil
Richard Henderson
Kai Tietz
Cary Coutant
Joseph Myers
Eric B. Weddington
Michael Snyder