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| author | H.J. Lu <hjl.tools@gmail.com> | 2015-08-18 09:47:59 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-08-18 09:50:08 -0700 |
| commit | cae1fbbb7e3d770702a0d7a5027b46835e6adc13 (patch) | |
| tree | 892f4044f4c7e0e5bcd830f51fa7b0728e63050f /bfd/elf32-i386.c | |
| parent | 2b4bf6afd4506165007c0e76bc7c4381031cfaf6 (diff) | |
| download | gdb-cae1fbbb7e3d770702a0d7a5027b46835e6adc13.zip gdb-cae1fbbb7e3d770702a0d7a5027b46835e6adc13.tar.gz gdb-cae1fbbb7e3d770702a0d7a5027b46835e6adc13.tar.bz2 | |
Return reloc_class_ifunc for reloc against IFUNC
elf_XXX_reloc_type_class should return reloc_class_ifunc for relocation
against STT_GNU_IFUNC symbol.
bfd/
PR ld/18841
* elf-bfd.h (elf_link_hash_table): Add dynsym.
* elf32-i386.c (elf_i386_reloc_type_class): Return
reloc_class_ifunc for relocation against STT_GNU_IFUNC symbol.
* elf64-x86-64.c (elf_x86_64_reloc_type_class): Likewise.
* elflink.c (_bfd_elf_link_create_dynamic_sections): Set dynsym.
(bfd_elf_size_dynsym_hash_dynstr): Use dynsym.
(elf_final_link_info): Remove dynsym_sec.
(elf_link_output_extsym): Replace dynsym_sec with dynsym.
(bfd_elf_final_link): Remove reference to dynsym_sec. Replace
dynsym_sec with dynsym.
ld/testsuite/
PR ld/18841
* ld-ifunc/ifunc.exp: Add a test for PR ld/18841.
* ld-ifunc/pr18841.out: New file.
* ld-ifunc/pr18841a.c: Likewise.
* ld-ifunc/pr18841b.c: Likewise.
Diffstat (limited to 'bfd/elf32-i386.c')
| -rw-r--r-- | bfd/elf32-i386.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c index 507eecf..7642d0f 100644 --- a/bfd/elf32-i386.c +++ b/bfd/elf32-i386.c @@ -4973,10 +4973,27 @@ elf_i386_finish_local_dynamic_symbol (void **slot, void *inf) dynamic linker, before writing them out. */ static enum elf_reloc_type_class -elf_i386_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, +elf_i386_reloc_type_class (const struct bfd_link_info *info, const asection *rel_sec ATTRIBUTE_UNUSED, const Elf_Internal_Rela *rela) { + bfd *abfd = info->output_bfd; + const struct elf_backend_data *bed = get_elf_backend_data (abfd); + struct elf_link_hash_table *htab = elf_hash_table (info); + unsigned long r_symndx = ELF32_R_SYM (rela->r_info); + Elf_Internal_Sym sym; + + if (htab->dynsym == NULL + || !bed->s->swap_symbol_in (abfd, + (htab->dynsym->contents + + r_symndx * sizeof (Elf32_External_Sym)), + 0, &sym)) + abort (); + + /* Check relocation against STT_GNU_IFUNC symbol. */ + if (ELF32_ST_TYPE (sym.st_info) == STT_GNU_IFUNC) + return reloc_class_ifunc; + switch (ELF32_R_TYPE (rela->r_info)) { case R_386_RELATIVE: |