* common.h (STT_IFUNC): Define.
elfcpp/
* elfcpp.h (enum STT): Add STT_IFUNC.
bfd/
* syms.c (struct bfd_symbol): Add new flag BSF_INDIRECT_FUNCTION.
Remove redundant flag BFD_FORT_COMM_DEFAULT_VALUE. Renumber flags
to remove gaps.
(bfd_print_symbol_vandf): Return 'i' for BSF_INDIRECT_FUNCTION.
(bfd_decode_symclass): Likewise.
* elf.c (swap_out_syms): Translate BSF_INDIRECT_FUNCTION into
STT_IFUNC.
(elf_find_function): Treat STT_IFUNC in the same way as STT_FUNC.
(_bfd_elf_is_function_type): Likewise.
* elf32-arm.c (arm_elf_find_function): Likewise.
(elf32_arm_adjust_dynamic_symbol): Likewise.
(elf32_arm_swap_symbol_in): Likewise.
(elf32_arm_additional_program_headers): Likewise.
* elf32-i386.c (is_indirect_symbol): New function.
(elf_i386_check_relocs): Also generate dynamic relocs for
relocations against STT_IFUNC symbols.
(allocate_dynrelocs): Likewise.
(elf_i386_relocate_section): Likewise.
* elf64-x86-64.c (is_indirect_symbol): New function.
(elf64_x86_64_check_relocs): Also generate dynamic relocs for
relocations against STT_IFUNC symbols.
(allocate_dynrelocs): Likewise.
(elf64_x86_64_relocate_section): Likewise.
* elfcode.h (elf_slurp_symbol_table): Translate STT_IFUNC into
BSF_INDIRECT_FUNCTION.
* elflink.c (_bfd_elf_adjust_dynamic_reloc_section): Add support
for STT_IFUNC symbols.
(get_ifunc_reloc_section_name): New function.
(_bfd_elf_make_ifunc_reloc_section): New function.
* elf-bfd.h (struct bfd_elf_section_data): Add indirect_relocs field.
* bfd-in2.h: Regenerate.
gas/
* config/obj-elf.c (obj_elf_type): Add support for STT_IFUNC type.
* doc/as.texinfo: Document new feature.
* NEWS: Mention new feature.
gas/testsuite/
* gas/elf/type.s: Add test of STT_IFUNC symbol type.
* gas/elf/type.e: Update expected disassembly.
* gas/elf/elf.exp: Update grep of symbol types.
ld/
* NEWS: Mention new feature.
* pe-dll.c (process_def_file): Replace use of redundant
BFD_FORT_COMM_DEFAULT_VALUE with 0.
* scripttempl/elf.sc: Add .rel.ifunc.dyn and .rela.ifunc.dyn
sections.
ld/testsuite/
* ld-mips-elf/reloc-1-n32.d: Updated expected output for reloc
descriptions.
* ld-mips-elf/reloc-1-n64.d: Likewise.
* ld-i386/ifunc.d: New test.
* ld-i386/ifunc.s: Source file for the new test.
* ld-i386/i386.exp: Run the new test.
with the correct arch size before rejecting the generic fallback.
* elfcode.h (elf_object_p): Likewise. Ensure arch size matches
before accepting a target.
PR binutils/5449
* elf.c (rewrite_elf_program_header): Don't adjust p_paddr if
p_paddr is set to 0.
(copy_private_bfd_data): Call rewrite_elf_program_header if
p_paddr is set to 0.
* elfcode.h (elf_swap_phdr_out): Set p_paddr to 0 if needed.
* elfxx-ia64.c (ELF_MAXPAGESIZE): Don't redefine it for HPUX.
* elfcode.h (NAME(_bfd_elf,bfd_from_remote_memory)): LOADBASE is now
initialized only on the first PT_LOAD. New variable LOADBASE_SET.
Removed PF_R checking for IA-64 vDSOs as redundant now.
Code advisory: Roland McGrath
PR binutils/3826
* elf-bfd.h (elf_backend_data): Add elf_osabi.
(_bfd_elf_set_osabi): New.
* elf.c (_bfd_elf_set_osabi): New.
* elf32-hppa.c (elf32_hppa_post_process_headers): Removed.
(elf_backend_post_process_headers): Defined with
_bfd_elf_set_osabi.
(ELF_OSABI): Properly defined for each target.
* elf32-i370.c (i370_elf_post_process_headers): Removed.
(ELF_OSABI): Defined.
(elf_backend_post_process_headers): Defined with
_bfd_elf_set_osabi.
* elf32-i386.c (ELF_OSABI): Defined to ELFOSABI_FREEBSD for
freebsd.
(elf_i386_post_process_headers): Set EI_OSABI with elf_osabi.
* elf32-msp430.c (elf32_msp430_post_process_headers): Removed.
(ELF_OSABI): Defined.
(elf_backend_post_process_headers): Defined with
_bfd_elf_set_osabi.
* elf64-alpha.c (ELF_OSABI): Defined to ELFOSABI_FREEBSD for
freebsd.
(elf64_alpha_fbsd_post_process_headers): Set EI_OSABI with
elf_osabi.
* elf64-hppa.c (elf64_hppa_post_process_headers): Set EI_OSABI
with elf_osabi.
(ELF_OSABI): Properly defined for each target.
(elf_backend_post_process_headers): Defined with
_bfd_elf_set_osabi for Linux.
* elf64-sparc.c (elf64_sparc_fbsd_post_process_headers): Removed.
(ELF_OSABI): Defined to ELFOSABI_FREEBSD for freebsd.
(elf_backend_post_process_headers): Defined with
_bfd_elf_set_osabi.
* elf64-x86-64.c (elf64_x86_64_fbsd_post_process_headers): Removed.
(ELF_OSABI): Defined to ELFOSABI_FREEBSD for freebsd.
(elf_backend_post_process_headers): Defined with
_bfd_elf_set_osabi.
* elfcode.h (elf_object_p): Match the ELFOSABI_NONE ELF target
with any ELF target of the compatible machine for which we do not
have a specific backend.
* elfxx-ia64.c (elfNN_hpux_post_process_headers): Set EI_OSABI
with elf_osabi.
* elfxx-target.h (ELF_OSABI): Default to ELFOSABI_NONE.
(elfNN_bed): Initialize elf_osabi with ELF_OSABI.
* elfcode.h (valid_section_index_p): New function: Checks for a valid section
index. Allows indicies in the range SHN_LOPROC to SHN_HIOS.
(elf_object_p): Use valid_section_index_p.
* elfcode.h (elf_object_p): Allow files with corrupt e_shstrndx fields to
still be handled as ELF files.
* readelf.c (SECTION_NAME): Cope with a missing string table.
(process_file_header): Cope with a corrupt e_shstrndx field.
(process_section_headers): Correctly handle an e_shstrndx value of SHF_UNDEF.
first shdr has sh_size == 0. Fail if e_shnum is large to cause
arithmetic overflow when allocating the i_shdr array.
Sanity check sh_link and sh_info fields. Fix e_shstrndx sanity check.
* elf.c (bfd_elf_string_from_elf_section): Expand occurrence of
elf_string_from_elf_strtab.
(_bfd_elf_setup_group_pointers, bfd_section_from_shdr): Likewise.
(bfd_section_from_shdr): For SHT_SYMTAB, load SHT_SYMTAB_SHNDX too
if it exists. Don't do the reverse for SHT_SYMTAB_SHNDX. For
SHT_STRTAB, check whether the strtab is for symtab or dynsymtab by
looking at cached symtab info first, before iterating over headers.
For SHT_REL and SHT_RELA, load dynsymtab if needed.
* elfcode.h (elf_object_p): Don't load section header stringtab
* elfcode.h (elf_slurp_symbol_table): Use bfd_elf_sym_name so that
canonical sections syms have a name.
gas/testsuite/
Update for changed section syms.
ld/testsuite/
Update for changed section syms.
* elflink.h: Replace all occurrences of sizeof (Elf_External_*)
where Elf_External_* is different for 64 and 32 bit, with
corresponding elf_size_info field.
(struct elf_final_link_info): Use "bfd_byte *" instead
of "Elf_External_Sym *" for external_syms and symbuf.
(elf_link_adjust_relocs): Set up r_type_mask and r_sym_shift local
vars and use instead of ELF_R_INFO and ELF_R_TYPE macros.
(struct elf_link_sort_rela): Add "sym_mask" alias for "offset".
(elf_link_sort_cmp1): Use sym_mask field instead of ELF_R_SYM.
(elf_link_sort_cmp2): Adjust.
(elf_link_sort_relocs): Set up r_sym_mask local var instead of
using ELF_R_SYM macro. Set u.sym_mask.
(elf_bfd_final_link): Call _bfd_elf_stringtab_init instead of macro
version, elf_stringtab_init. Ditto for bfd_section_from_elf_index
vs. section_from_elf_index. Adjust Elf_External_Sym pointer
arithmetic. Pass bed to elf_link_flush_output_syms. Adjust
Elf_External_Dyn pointer arithmentic. Use bed swap_dyn_in and
swap_syn_out functions. Rearrange dyn swap in/out switch.
(elf_link_output_sym): Adjust Elf_External_Sym pointer arithmentic.
Pass bed to elf_link_flush_output_syms. Use bed swap_symbol_out.
(elf_link_flush_output_syms): Add elf_backend_data arg.
(elf_link_check_versioned_symbol): Likewise.
(elf_link_output_extsym): Pass bed to elf_link_check_versioned_symbol.
Adjust Elf_External_Sym pointer arithmetic. Use bed swap_symbol_out.
(elf_link_input_bfd): Use bfd_section_from_elf_index. Set up
r_type_mask and r_sym_shift local vars and use instead of ELF_R_SYM,
ELF_R_TYPE and ELF_R_INFO macros.
(elf_reloc_link_order): Select ELF32_R_INFO or ELF64_R_INFO invocation
based on size rather than using ELF_R_INFO.
(elf_gc_mark): Set up r_sym_shift local var and use instead of
ELF_R_SYM macro.
(struct alloc_got_off_arg): New.
(elf_gc_common_finalize_got_offsets): Use elf_size_info instead of
ARCH_SIZE. Pass get entry size down to elf_gc_allocate_got_offsets.
(elf_gc_allocate_got_offsets): Adjust.
(elf_reloc_symbol_deleted_p): Usee cookie.r_sym_shift instead of
ELF_R_SYM. Use bfd_section_from_elf_index.
(elf_bfd_discard_info): Set cookie.r_sym_shift.
* elfcode.h (elf_stringtab_init, section_from_elf_index): Delete.
(elf_slurp_symbol_table): Use bfd_section_from_elf_index.
