&& elf_tdata (bfd) != NULL \
&& elf_object_id (bfd) == X86_64_ELF_DATA)
-static bfd_boolean
-elf_x86_64_mkobject (bfd *abfd)
-{
- return bfd_elf_allocate_object (abfd, sizeof (struct elf_x86_obj_tdata),
- X86_64_ELF_DATA);
-}
-
#define elf_x86_64_compute_jump_table_size(htab) \
((htab)->elf.srelplt->reloc_count * GOT_ENTRY_SIZE)
return FALSE;
}
-/* Return the section that should be marked against GC for a given
- relocation. */
-
-static asection *
-elf_x86_64_gc_mark_hook (asection *sec,
- struct bfd_link_info *info,
- Elf_Internal_Rela *rel,
- struct elf_link_hash_entry *h,
- Elf_Internal_Sym *sym)
-{
- if (h != NULL)
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_X86_64_GNU_VTINHERIT:
- case R_X86_64_GNU_VTENTRY:
- return NULL;
- }
-
- return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
-}
-
-/* Adjust a symbol defined by a dynamic object and referenced by a
- regular object. The current definition is in some section of the
- dynamic object, but we're not including those sections. We have to
- change the definition to something the rest of the link can
- understand. */
-
-static bfd_boolean
-elf_x86_64_adjust_dynamic_symbol (struct bfd_link_info *info,
- struct elf_link_hash_entry *h)
-{
- struct elf_x86_link_hash_table *htab;
- asection *s, *srel;
- struct elf_x86_link_hash_entry *eh;
- struct elf_dyn_relocs *p;
-
- /* STT_GNU_IFUNC symbol must go through PLT. */
- if (h->type == STT_GNU_IFUNC)
- {
- /* All local STT_GNU_IFUNC references must be treate as local
- calls via local PLT. */
- if (h->ref_regular
- && SYMBOL_CALLS_LOCAL (info, h))
- {
- bfd_size_type pc_count = 0, count = 0;
- struct elf_dyn_relocs **pp;
-
- eh = (struct elf_x86_link_hash_entry *) h;
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
- {
- pc_count += p->pc_count;
- p->count -= p->pc_count;
- p->pc_count = 0;
- count += p->count;
- if (p->count == 0)
- *pp = p->next;
- else
- pp = &p->next;
- }
-
- if (pc_count || count)
- {
- h->non_got_ref = 1;
- if (pc_count)
- {
- /* Increment PLT reference count only for PC-relative
- references. */
- h->needs_plt = 1;
- if (h->plt.refcount <= 0)
- h->plt.refcount = 1;
- else
- h->plt.refcount += 1;
- }
- }
- }
-
- if (h->plt.refcount <= 0)
- {
- h->plt.offset = (bfd_vma) -1;
- h->needs_plt = 0;
- }
- return TRUE;
- }
-
- /* If this is a function, put it in the procedure linkage table. We
- will fill in the contents of the procedure linkage table later,
- when we know the address of the .got section. */
- if (h->type == STT_FUNC
- || h->needs_plt)
- {
- if (h->plt.refcount <= 0
- || SYMBOL_CALLS_LOCAL (info, h)
- || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
- && h->root.type == bfd_link_hash_undefweak))
- {
- /* This case can occur if we saw a PLT32 reloc in an input
- file, but the symbol was never referred to by a dynamic
- object, or if all references were garbage collected. In
- such a case, we don't actually need to build a procedure
- linkage table, and we can just do a PC32 reloc instead. */
- h->plt.offset = (bfd_vma) -1;
- h->needs_plt = 0;
- }
-
- return TRUE;
- }
- else
- /* It's possible that we incorrectly decided a .plt reloc was
- needed for an R_X86_64_PC32 reloc to a non-function sym in
- check_relocs. We can't decide accurately between function and
- non-function syms in check-relocs; Objects loaded later in
- the link may change h->type. So fix it now. */
- h->plt.offset = (bfd_vma) -1;
-
- eh = (struct elf_x86_link_hash_entry *) h;
-
- /* If this is a weak symbol, and there is a real definition, the
- processor independent code will have arranged for us to see the
- real definition first, and we can just use the same value. */
- if (h->u.weakdef != NULL)
- {
- BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
- || h->u.weakdef->root.type == bfd_link_hash_defweak);
- h->root.u.def.section = h->u.weakdef->root.u.def.section;
- h->root.u.def.value = h->u.weakdef->root.u.def.value;
- if (ELIMINATE_COPY_RELOCS
- || info->nocopyreloc
- || SYMBOL_NO_COPYRELOC (info, eh))
- {
- h->non_got_ref = h->u.weakdef->non_got_ref;
- eh->needs_copy = h->u.weakdef->needs_copy;
- }
- return TRUE;
- }
-
- /* This is a reference to a symbol defined by a dynamic object which
- is not a function. */
-
- /* If we are creating a shared library, we must presume that the
- only references to the symbol are via the global offset table.
- For such cases we need not do anything here; the relocations will
- be handled correctly by relocate_section. */
- if (!bfd_link_executable (info))
- return TRUE;
-
- /* If there are no references to this symbol that do not use the
- GOT, we don't need to generate a copy reloc. */
- if (!h->non_got_ref)
- return TRUE;
-
- /* If -z nocopyreloc was given, we won't generate them either. */
- if (info->nocopyreloc || SYMBOL_NO_COPYRELOC (info, eh))
- {
- h->non_got_ref = 0;
- return TRUE;
- }
-
- if (ELIMINATE_COPY_RELOCS)
- {
- eh = (struct elf_x86_link_hash_entry *) h;
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
- {
- s = p->sec->output_section;
- if (s != NULL && (s->flags & SEC_READONLY) != 0)
- break;
- }
-
- /* If we didn't find any dynamic relocs in read-only sections, then
- we'll be keeping the dynamic relocs and avoiding the copy reloc. */
- if (p == NULL)
- {
- h->non_got_ref = 0;
- return TRUE;
- }
- }
-
- /* We must allocate the symbol in our .dynbss section, which will
- become part of the .bss section of the executable. There will be
- an entry for this symbol in the .dynsym section. The dynamic
- object will contain position independent code, so all references
- from the dynamic object to this symbol will go through the global
- offset table. The dynamic linker will use the .dynsym entry to
- determine the address it must put in the global offset table, so
- both the dynamic object and the regular object will refer to the
- same memory location for the variable. */
-
- htab = elf_x86_hash_table (info, X86_64_ELF_DATA);
- if (htab == NULL)
- return FALSE;
-
- /* We must generate a R_X86_64_COPY reloc to tell the dynamic linker
- to copy the initial value out of the dynamic object and into the
- runtime process image. */
- if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
- {
- s = htab->elf.sdynrelro;
- srel = htab->elf.sreldynrelro;
- }
- else
- {
- s = htab->elf.sdynbss;
- srel = htab->elf.srelbss;
- }
- if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
- {
- const struct elf_backend_data *bed;
- bed = get_elf_backend_data (info->output_bfd);
- srel->size += bed->s->sizeof_rela;
- h->needs_copy = 1;
- }
-
- return _bfd_elf_adjust_dynamic_copy (info, h, s);
-}
-
/* Allocate space in .plt, .got and associated reloc sections for
dynamic relocs. */
#define bfd_elf64_bfd_reloc_name_lookup \
elf_x86_64_reloc_name_lookup
-#define elf_backend_adjust_dynamic_symbol elf_x86_64_adjust_dynamic_symbol
#define elf_backend_relocs_compatible elf_x86_64_relocs_compatible
#define elf_backend_check_relocs elf_x86_64_check_relocs
#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
#define elf_backend_finish_dynamic_sections elf_x86_64_finish_dynamic_sections
#define elf_backend_finish_dynamic_symbol elf_x86_64_finish_dynamic_symbol
#define elf_backend_output_arch_local_syms elf_x86_64_output_arch_local_syms
-#define elf_backend_gc_mark_hook elf_x86_64_gc_mark_hook
#define elf_backend_grok_prstatus elf_x86_64_grok_prstatus
#define elf_backend_grok_psinfo elf_x86_64_grok_psinfo
#ifdef CORE_HEADER
#define elf_backend_size_dynamic_sections elf_x86_64_size_dynamic_sections
#define elf_backend_init_index_section _bfd_elf_init_1_index_section
#define elf_backend_object_p elf64_x86_64_elf_object_p
-#define bfd_elf64_mkobject elf_x86_64_mkobject
#define bfd_elf64_get_synthetic_symtab elf_x86_64_get_synthetic_symtab
#define elf_backend_section_from_shdr \
elf_x86_64_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup \
elf_x86_64_reloc_name_lookup
-#define bfd_elf32_mkobject \
- elf_x86_64_mkobject
#define bfd_elf32_get_synthetic_symtab \
elf_x86_64_get_synthetic_symtab
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