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bfd/
2009-06-02 H.J. Lu <hongjiu.lu@intel.com> * elf32-i386.c (elf_i386_check_relocs): Increment got.refcount for R_386_GOT32/R_386_GOTOFF relocations against STT_GNU_IFUNC symbol. (elf_i386_allocate_dynrelocs): Set got.refcount to 0 if local STT_GNU_IFUNC definition is used. (elf_i386_relocate_section): Handle got.offset != -1 for R_386_GOT32/R_386_GOTOFF relocations against STT_GNU_IFUNC symbol. * elf64-x86-64.c (elf64_x86_64_check_relocs): Increment got.refcount for R_X86_64_GOTPCREL/R_X86_64_GOTPCREL64 relocations against STT_GNU_IFUNC symbol. (elf64_x86_64_allocate_dynrelocs): Set got.refcount to 0 if local STT_GNU_IFUNC definition is used. (elf64_x86_64_relocate_section): Handle got.offset != -1 for R_X86_64_GOTPCREL/R_X86_64_GOTPCREL64 relocations against STT_GNU_IFUNC symbol. ld/testsuite/ 2009-06-02 H.J. Lu <hongjiu.lu@intel.com> * ld-ifunc/ifunc-5-i386.d: Renamed to ... * ld-ifunc/ifunc-5a-i386.d: This. * ld-ifunc/ifunc-5-x86-64.d: Renamed to ... * ld-ifunc/ifunc-5a-x86-64.d: This. * ld-ifunc/ifunc-5b-i386.d: New. * ld-ifunc/ifunc-5b-x86-64.d: Likewise. * ld-ifunc/ifunc-6a-i386.d: Likewise. * ld-ifunc/ifunc-6a-x86-64.d: Likewise. * ld-ifunc/ifunc-6b-i386.d: Likewise. * ld-ifunc/ifunc-6b-x86-64.d: Likewise. * ld-ifunc/ifunc-6-i386.s: Likewise. * ld-ifunc/ifunc-6-x86-64.s: Likewise. * ld-ifunc/ifunc-7a-i386.d: Likewise. * ld-ifunc/ifunc-7a-x86-64.d: Likewise. * ld-ifunc/ifunc-7b-i386.d: Likewise. * ld-ifunc/ifunc-7b-x86-64.d: Likewise. * ld-ifunc/ifunc-7-i386.s: Likewise. * ld-ifunc/ifunc-7-x86-64.s: Likewise.
This commit is contained in:
parent
06c582ac9d
commit
7afd84dc1f
@ -1,3 +1,23 @@
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2009-06-02 H.J. Lu <hongjiu.lu@intel.com>
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* elf32-i386.c (elf_i386_check_relocs): Increment
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got.refcount for R_386_GOT32/R_386_GOTOFF relocations
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against STT_GNU_IFUNC symbol.
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(elf_i386_allocate_dynrelocs): Set got.refcount to 0 if
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local STT_GNU_IFUNC definition is used.
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(elf_i386_relocate_section): Handle got.offset != -1 for
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R_386_GOT32/R_386_GOTOFF relocations against STT_GNU_IFUNC
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symbol.
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* elf64-x86-64.c (elf64_x86_64_check_relocs): Increment
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got.refcount for R_X86_64_GOTPCREL/R_X86_64_GOTPCREL64
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relocations against STT_GNU_IFUNC symbol.
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(elf64_x86_64_allocate_dynrelocs): Set got.refcount to 0 if
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local STT_GNU_IFUNC definition is used.
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(elf64_x86_64_relocate_section): Handle got.offset != -1
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for R_X86_64_GOTPCREL/R_X86_64_GOTPCREL64 relocations against
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STT_GNU_IFUNC symbol.
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2009-06-01 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/10205
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101
bfd/elf32-i386.c
101
bfd/elf32-i386.c
@ -1336,6 +1336,7 @@ elf_i386_check_relocs (bfd *abfd,
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case R_386_GOT32:
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case R_386_GOTOFF:
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h->got.refcount += 1;
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if (htab->sgot == NULL
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&& !elf_i386_create_got_section (htab->elf.dynobj,
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info))
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@ -1999,8 +2000,13 @@ elf_i386_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
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if (h->dynindx == -1 || h->forced_local)
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eh->dyn_relocs = NULL;
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/* STT_GNU_IFUNC symbol uses .got.plt, not .got. */
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h->got.refcount = 0;
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/* STT_GNU_IFUNC symbol uses .got.plt, not .got. But for
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shared library, we must go through GOT and we can't
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use R_386_IRELATIVE unless it is forced local. */
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if (!info->shared
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|| info->symbolic
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|| h->forced_local)
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h->got.refcount = 0;
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}
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else if (htab->elf.dynamic_sections_created
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&& h->plt.refcount > 0)
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@ -2908,55 +2914,62 @@ elf_i386_relocate_section (bfd *output_bfd,
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base_got = htab->sgot;
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off = h->got.offset;
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if (base_got == NULL
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|| off != (bfd_vma) -1)
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if (base_got == NULL)
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abort ();
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/* We can't use h->got.offset here to save state, or
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even just remember the offset, as finish_dynamic_symbol
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would use that as offset into .got. */
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if (off == (bfd_vma) -1)
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{
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/* We can't use h->got.offset here to save state, or
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even just remember the offset, as finish_dynamic_symbol
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would use that as offset into .got. */
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if (htab->splt != NULL)
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{
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plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
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off = (plt_index + 3) * 4;
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base_got = htab->sgotplt;
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}
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else
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{
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plt_index = h->plt.offset / PLT_ENTRY_SIZE;
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off = plt_index * 4;
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base_got = htab->igotplt;
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}
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if (h->dynindx == -1
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|| h->forced_local
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|| info->symbolic)
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{
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/* This references the local defitionion. We must
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initialize this entry in the global offset table.
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Since the offset must always be a multiple of 8, we
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use the least significant bit to record whether we
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have initialized it already.
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When doing a dynamic link, we create a .rela.got
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relocation entry to initialize the value. This is
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done in the finish_dynamic_symbol routine. */
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if ((off & 1) != 0)
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off &= ~1;
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if (htab->splt != NULL)
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{
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plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
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off = (plt_index + 3) * 4;
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base_got = htab->sgotplt;
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}
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else
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{
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bfd_put_32 (output_bfd, relocation,
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base_got->contents + off);
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h->got.offset |= 1;
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plt_index = h->plt.offset / PLT_ENTRY_SIZE;
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off = plt_index * 4;
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base_got = htab->igotplt;
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}
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if (h->dynindx == -1
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|| h->forced_local
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|| info->symbolic)
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{
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/* This references the local defitionion. We must
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initialize this entry in the global offset table.
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Since the offset must always be a multiple of 8,
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we use the least significant bit to record
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whether we have initialized it already.
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When doing a dynamic link, we create a .rela.got
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relocation entry to initialize the value. This
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is done in the finish_dynamic_symbol routine. */
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if ((off & 1) != 0)
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off &= ~1;
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else
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{
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bfd_put_32 (output_bfd, relocation,
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base_got->contents + off);
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h->got.offset |= 1;
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}
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}
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relocation = off;
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/* Adjust for static executables. */
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if (htab->splt == NULL)
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relocation += gotplt->output_offset;
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}
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relocation = off;
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/* Adjust for static executables. */
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if (htab->splt == NULL)
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relocation += gotplt->output_offset;
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else
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relocation = (base_got->output_section->vma
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+ base_got->output_offset + off
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- gotplt->output_section->vma
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- gotplt->output_offset);
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goto do_relocation;
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@ -1126,6 +1126,7 @@ elf64_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
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case R_X86_64_GOTPCREL:
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case R_X86_64_GOTPCREL64:
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h->got.refcount += 1;
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if (htab->sgot == NULL
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&& !elf64_x86_64_create_got_section (htab->elf.dynobj,
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info))
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@ -1837,8 +1838,13 @@ elf64_x86_64_allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
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if (h->dynindx == -1 || h->forced_local)
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eh->dyn_relocs = NULL;
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/* STT_GNU_IFUNC symbol uses .got.plt, not .got. */
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h->got.refcount = 0;
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/* STT_GNU_IFUNC symbol uses .got.plt, not .got. But for
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shared library, we must go through GOT and we can't
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use R_X86_64_IRELATIVE unless it is forced local. */
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if (!info->shared
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|| info->symbolic
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|| h->forced_local)
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h->got.refcount = 0;
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}
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else if (htab->elf.dynamic_sections_created
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&& h->plt.refcount > 0)
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@ -2616,49 +2622,51 @@ elf64_x86_64_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
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base_got = htab->sgot;
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off = h->got.offset;
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if (base_got == NULL
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|| off != (bfd_vma) -1)
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if (base_got == NULL)
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abort ();
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/* We can't use h->got.offset here to save state, or
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even just remember the offset, as finish_dynamic_symbol
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would use that as offset into .got. */
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if (htab->splt != NULL)
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if (off == (bfd_vma) -1)
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{
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plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
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off = (plt_index + 3) * GOT_ENTRY_SIZE;
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base_got = htab->sgotplt;
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}
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else
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{
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plt_index = h->plt.offset / PLT_ENTRY_SIZE;
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off = plt_index * GOT_ENTRY_SIZE;
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base_got = htab->igotplt;
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}
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/* We can't use h->got.offset here to save state, or
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even just remember the offset, as finish_dynamic_symbol
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would use that as offset into .got. */
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if (h->dynindx == -1
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|| h->forced_local
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|| info->symbolic)
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{
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/* This references the local defitionion. We must
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initialize this entry in the global offset table.
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Since the offset must always be a multiple of 8, we
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use the least significant bit to record whether we
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have initialized it already.
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When doing a dynamic link, we create a .rela.got
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relocation entry to initialize the value. This is
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done in the finish_dynamic_symbol routine. */
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if ((off & 1) != 0)
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off &= ~1;
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if (htab->splt != NULL)
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{
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plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
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off = (plt_index + 3) * GOT_ENTRY_SIZE;
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base_got = htab->sgotplt;
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}
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else
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{
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bfd_put_64 (output_bfd, relocation,
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base_got->contents + off);
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/* Note that this is harmless for the GOTPLT64 case,
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as -1 | 1 still is -1. */
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h->got.offset |= 1;
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plt_index = h->plt.offset / PLT_ENTRY_SIZE;
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off = plt_index * GOT_ENTRY_SIZE;
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base_got = htab->igotplt;
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}
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if (h->dynindx == -1
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|| h->forced_local
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|| info->symbolic)
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{
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/* This references the local defitionion. We must
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initialize this entry in the global offset table.
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Since the offset must always be a multiple of 8,
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we use the least significant bit to record
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whether we have initialized it already.
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When doing a dynamic link, we create a .rela.got
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relocation entry to initialize the value. This
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is done in the finish_dynamic_symbol routine. */
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if ((off & 1) != 0)
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off &= ~1;
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else
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{
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bfd_put_64 (output_bfd, relocation,
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base_got->contents + off);
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/* Note that this is harmless for the GOTPLT64
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case, as -1 | 1 still is -1. */
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h->got.offset |= 1;
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}
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}
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}
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@ -1,3 +1,26 @@
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2009-06-02 H.J. Lu <hongjiu.lu@intel.com>
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* ld-ifunc/ifunc-5-i386.d: Renamed to ...
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* ld-ifunc/ifunc-5a-i386.d: This.
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* ld-ifunc/ifunc-5-x86-64.d: Renamed to ...
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* ld-ifunc/ifunc-5a-x86-64.d: This.
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* ld-ifunc/ifunc-5b-i386.d: New.
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* ld-ifunc/ifunc-5b-x86-64.d: Likewise.
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* ld-ifunc/ifunc-6a-i386.d: Likewise.
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* ld-ifunc/ifunc-6a-x86-64.d: Likewise.
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* ld-ifunc/ifunc-6b-i386.d: Likewise.
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* ld-ifunc/ifunc-6b-x86-64.d: Likewise.
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* ld-ifunc/ifunc-6-i386.s: Likewise.
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* ld-ifunc/ifunc-6-x86-64.s: Likewise.
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* ld-ifunc/ifunc-7a-i386.d: Likewise.
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* ld-ifunc/ifunc-7a-x86-64.d: Likewise.
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* ld-ifunc/ifunc-7b-i386.d: Likewise.
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* ld-ifunc/ifunc-7b-x86-64.d: Likewise.
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* ld-ifunc/ifunc-7-i386.s: Likewise.
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* ld-ifunc/ifunc-7-x86-64.s: Likewise.
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2009-06-01 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/10205
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@ -1,8 +1,9 @@
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#source: ifunc-5-i386.s
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#ld: -m elf_i386
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#as: --32
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#readelf: -r --wide
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#target: x86_64-*-* i?86-*-*
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#...
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Relocation section '.rel.plt' at .*
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[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
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[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_386_IRELATIVE[ ]*
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#pass
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@ -1,7 +1,8 @@
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#source: ifunc-5-x86-64.s
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#ld:
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#readelf: -r --wide
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#target: x86_64-*-*
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#...
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Relocation section '.rela.plt' at .*
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[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
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[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_X86_64_IRELATIVE[ ]+[0-9a-f]*
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#pass
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13
ld/testsuite/ld-ifunc/ifunc-5b-i386.d
Normal file
13
ld/testsuite/ld-ifunc/ifunc-5b-i386.d
Normal file
@ -0,0 +1,13 @@
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#source: ifunc-5-i386.s
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#ld: -shared -m elf_i386 -z nocombreloc
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#as: --32
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#readelf: -r --wide
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#target: x86_64-*-* i?86-*-*
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Relocation section '.rel.got' at .*
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[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
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[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_386_GLOB_DAT[ ]+foo\(\)[ ]+foo
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#...
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Relocation section '.rel.plt' at .*
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[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
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[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_386_JUMP_SLOT[ ]+foo\(\)[ ]+foo
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12
ld/testsuite/ld-ifunc/ifunc-5b-x86-64.d
Normal file
12
ld/testsuite/ld-ifunc/ifunc-5b-x86-64.d
Normal file
@ -0,0 +1,12 @@
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#source: ifunc-5-x86-64.s
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#ld: -shared -z nocombreloc
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#readelf: -r --wide
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#target: x86_64-*-*
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Relocation section '.rela.got' at .*
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[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
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[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_X86_64_GLOB_DAT[ ]+foo\(\)[ ]+foo \+ 0
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#...
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Relocation section '.rela.plt' at .*
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[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
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[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_X86_64_JUMP_SLOT[ ]+foo\(\)[ ]+foo \+ 0
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24
ld/testsuite/ld-ifunc/ifunc-6-i386.s
Normal file
24
ld/testsuite/ld-ifunc/ifunc-6-i386.s
Normal file
@ -0,0 +1,24 @@
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.text
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.type foo, %gnu_indirect_function
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.globl foo
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.type foo, @function
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foo:
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ret
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.size foo, .-foo
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.protected foo
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.type start,"function"
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.global start
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start:
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.type _start,"function"
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.global _start
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_start:
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.type __start,"function"
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.global __start
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__start:
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.type __start,"function"
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call .L6
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.L6:
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popl %ebx
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addl $_GLOBAL_OFFSET_TABLE_+[.-.L6], %ebx
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call foo@PLT
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leal foo@GOT(%ebx), %eax
|
20
ld/testsuite/ld-ifunc/ifunc-6-x86-64.s
Normal file
20
ld/testsuite/ld-ifunc/ifunc-6-x86-64.s
Normal file
@ -0,0 +1,20 @@
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.text
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.type foo, %gnu_indirect_function
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.globl foo
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.type foo, @function
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foo:
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ret
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.size foo, .-foo
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.protected foo
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.type start,"function"
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.global start
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start:
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.type _start,"function"
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.global _start
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_start:
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.type __start,"function"
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.global __start
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||||
__start:
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||||
.type __start,"function"
|
||||
call foo@PLT
|
||||
movq foo@GOTPCREL(%rip), %rax
|
9
ld/testsuite/ld-ifunc/ifunc-6a-i386.d
Normal file
9
ld/testsuite/ld-ifunc/ifunc-6a-i386.d
Normal file
@ -0,0 +1,9 @@
|
||||
#source: ifunc-6-i386.s
|
||||
#ld: -m elf_i386
|
||||
#as: --32
|
||||
#readelf: -r --wide
|
||||
#target: x86_64-*-* i?86-*-*
|
||||
|
||||
Relocation section '.rel.plt' at .*
|
||||
[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
|
||||
[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_386_IRELATIVE[ ]*
|
8
ld/testsuite/ld-ifunc/ifunc-6a-x86-64.d
Normal file
8
ld/testsuite/ld-ifunc/ifunc-6a-x86-64.d
Normal file
@ -0,0 +1,8 @@
|
||||
#source: ifunc-6-x86-64.s
|
||||
#ld:
|
||||
#readelf: -r --wide
|
||||
#target: x86_64-*-*
|
||||
|
||||
Relocation section '.rela.plt' at .*
|
||||
[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
|
||||
[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_X86_64_IRELATIVE[ ]+[0-9a-f]*
|
13
ld/testsuite/ld-ifunc/ifunc-6b-i386.d
Normal file
13
ld/testsuite/ld-ifunc/ifunc-6b-i386.d
Normal file
@ -0,0 +1,13 @@
|
||||
#source: ifunc-6-i386.s
|
||||
#ld: -shared -m elf_i386 -z nocombreloc
|
||||
#as: --32
|
||||
#readelf: -r --wide
|
||||
#target: x86_64-*-* i?86-*-*
|
||||
|
||||
Relocation section '.rel.got' at .*
|
||||
[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
|
||||
[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_386_GLOB_DAT[ ]+foo\(\)[ ]+foo
|
||||
#...
|
||||
Relocation section '.rel.plt' at .*
|
||||
[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
|
||||
[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_386_IRELATIVE[ ]*
|
12
ld/testsuite/ld-ifunc/ifunc-6b-x86-64.d
Normal file
12
ld/testsuite/ld-ifunc/ifunc-6b-x86-64.d
Normal file
@ -0,0 +1,12 @@
|
||||
#source: ifunc-6-x86-64.s
|
||||
#ld: -shared -z nocombreloc
|
||||
#readelf: -r --wide
|
||||
#target: x86_64-*-*
|
||||
|
||||
Relocation section '.rela.got' at .*
|
||||
[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
|
||||
[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_X86_64_GLOB_DAT[ ]+foo\(\)[ ]+foo \+ 0
|
||||
#...
|
||||
Relocation section '.rela.plt' at .*
|
||||
[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
|
||||
[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_X86_64_IRELATIVE[ ]+[0-9a-f]*
|
24
ld/testsuite/ld-ifunc/ifunc-7-i386.s
Normal file
24
ld/testsuite/ld-ifunc/ifunc-7-i386.s
Normal file
@ -0,0 +1,24 @@
|
||||
.text
|
||||
.type foo, %gnu_indirect_function
|
||||
.globl foo
|
||||
.type foo, @function
|
||||
foo:
|
||||
ret
|
||||
.size foo, .-foo
|
||||
.hidden foo
|
||||
.type start,"function"
|
||||
.global start
|
||||
start:
|
||||
.type _start,"function"
|
||||
.global _start
|
||||
_start:
|
||||
.type __start,"function"
|
||||
.global __start
|
||||
__start:
|
||||
.type __start,"function"
|
||||
call .L6
|
||||
.L6:
|
||||
popl %ebx
|
||||
addl $_GLOBAL_OFFSET_TABLE_+[.-.L6], %ebx
|
||||
call foo@PLT
|
||||
leal foo@GOT(%ebx), %eax
|
20
ld/testsuite/ld-ifunc/ifunc-7-x86-64.s
Normal file
20
ld/testsuite/ld-ifunc/ifunc-7-x86-64.s
Normal file
@ -0,0 +1,20 @@
|
||||
.text
|
||||
.type foo, %gnu_indirect_function
|
||||
.globl foo
|
||||
.type foo, @function
|
||||
foo:
|
||||
ret
|
||||
.size foo, .-foo
|
||||
.hidden foo
|
||||
.type start,"function"
|
||||
.global start
|
||||
start:
|
||||
.type _start,"function"
|
||||
.global _start
|
||||
_start:
|
||||
.type __start,"function"
|
||||
.global __start
|
||||
__start:
|
||||
.type __start,"function"
|
||||
call foo@PLT
|
||||
movq foo@GOTPCREL(%rip), %rax
|
9
ld/testsuite/ld-ifunc/ifunc-7a-i386.d
Normal file
9
ld/testsuite/ld-ifunc/ifunc-7a-i386.d
Normal file
@ -0,0 +1,9 @@
|
||||
#source: ifunc-7-i386.s
|
||||
#ld: -m elf_i386
|
||||
#as: --32
|
||||
#readelf: -r --wide
|
||||
#target: x86_64-*-* i?86-*-*
|
||||
|
||||
Relocation section '.rel.plt' at .*
|
||||
[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
|
||||
[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_386_IRELATIVE[ ]*
|
8
ld/testsuite/ld-ifunc/ifunc-7a-x86-64.d
Normal file
8
ld/testsuite/ld-ifunc/ifunc-7a-x86-64.d
Normal file
@ -0,0 +1,8 @@
|
||||
#source: ifunc-7-x86-64.s
|
||||
#ld:
|
||||
#readelf: -r --wide
|
||||
#target: x86_64-*-*
|
||||
|
||||
Relocation section '.rela.plt' at .*
|
||||
[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
|
||||
[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_X86_64_IRELATIVE[ ]+[0-9a-f]*
|
9
ld/testsuite/ld-ifunc/ifunc-7b-i386.d
Normal file
9
ld/testsuite/ld-ifunc/ifunc-7b-i386.d
Normal file
@ -0,0 +1,9 @@
|
||||
#source: ifunc-7-i386.s
|
||||
#ld: -shared -m elf_i386
|
||||
#as: --32
|
||||
#readelf: -r --wide
|
||||
#target: x86_64-*-* i?86-*-*
|
||||
|
||||
Relocation section '.rel.plt' at .*
|
||||
[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
|
||||
[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_386_IRELATIVE[ ]*
|
8
ld/testsuite/ld-ifunc/ifunc-7b-x86-64.d
Normal file
8
ld/testsuite/ld-ifunc/ifunc-7b-x86-64.d
Normal file
@ -0,0 +1,8 @@
|
||||
#source: ifunc-7-x86-64.s
|
||||
#ld: -shared
|
||||
#readelf: -r --wide
|
||||
#target: x86_64-*-*
|
||||
|
||||
Relocation section '.rela.plt' at .*
|
||||
[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
|
||||
[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_X86_64_IRELATIVE[ ]+[0-9a-f]*
|
Loading…
Reference in New Issue
Block a user