- bfd_boolean use_plt_got = eh->plt_got.refcount > 0;
-
- /* Clear the reference count of function pointer relocations
- if PLT is used. */
- eh->func_pointer_refcount = 0;
-
- /* Make sure this symbol is output as a dynamic symbol.
- Undefined weak syms won't yet be marked as dynamic. */
- if (h->dynindx == -1
- && !h->forced_local
- && !resolved_to_zero
- && h->root.type == bfd_link_hash_undefweak)
- {
- if (! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
-
- if (bfd_link_pic (info)
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
- {
- asection *s = htab->elf.splt;
- asection *second_s = htab->plt_second;
- asection *got_s = htab->plt_got;
-
- /* If this is the first .plt entry, make room for the special
- first entry. The .plt section is used by prelink to undo
- prelinking for dynamic relocations. */
- if (s->size == 0)
- s->size = htab->plt.has_plt0 * plt_entry_size;
-
- if (use_plt_got)
- eh->plt_got.offset = got_s->size;
- else
- {
- h->plt.offset = s->size;
- if (second_s)
- eh->plt_second.offset = second_s->size;
- }
-
- /* If this symbol is not defined in a regular file, and we are
- not generating a shared library, then set the symbol to this
- location in the .plt. This is required to make function
- pointers compare as equal between the normal executable and
- the shared library. */
- if (! bfd_link_pic (info)
- && !h->def_regular)
- {
- if (use_plt_got)
- {
- /* We need to make a call to the entry of the GOT PLT
- instead of regular PLT entry. */
- h->root.u.def.section = got_s;
- h->root.u.def.value = eh->plt_got.offset;
- }
- else
- {
- if (second_s)
- {
- /* We need to make a call to the entry of the
- second PLT instead of regular PLT entry. */
- h->root.u.def.section = second_s;
- h->root.u.def.value = eh->plt_second.offset;
- }
- else
- {
- h->root.u.def.section = s;
- h->root.u.def.value = h->plt.offset;
- }
- }
- }
-
- /* Make room for this entry. */
- if (use_plt_got)
- got_s->size += htab->non_lazy_plt->plt_entry_size;
- else
- {
- s->size += plt_entry_size;
- if (second_s)
- second_s->size += htab->non_lazy_plt->plt_entry_size;
-
- /* We also need to make an entry in the .got.plt section,
- which will be placed in the .got section by the linker
- script. */
- htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
-
- /* There should be no PLT relocation against resolved
- undefined weak symbol in executable. */
- if (!resolved_to_zero)
- {
- /* We also need to make an entry in the .rela.plt
- section. */
- htab->elf.srelplt->size += bed->s->sizeof_rela;
- htab->elf.srelplt->reloc_count++;
- }
- }
- }
- else
- {
- eh->plt_got.offset = (bfd_vma) -1;
- h->plt.offset = (bfd_vma) -1;
- h->needs_plt = 0;
- }
- }
- else
- {
- eh->plt_got.offset = (bfd_vma) -1;
- h->plt.offset = (bfd_vma) -1;
- h->needs_plt = 0;
- }
-
- eh->tlsdesc_got = (bfd_vma) -1;
-
- /* If R_X86_64_GOTTPOFF symbol is now local to the binary,
- make it a R_X86_64_TPOFF32 requiring no GOT entry. */
- if (h->got.refcount > 0
- && bfd_link_executable (info)
- && h->dynindx == -1
- && elf_x86_hash_entry (h)->tls_type == GOT_TLS_IE)
- {
- h->got.offset = (bfd_vma) -1;
- }
- else if (h->got.refcount > 0)
- {
- asection *s;
- bfd_boolean dyn;
- int tls_type = elf_x86_hash_entry (h)->tls_type;
-
- /* Make sure this symbol is output as a dynamic symbol.
- Undefined weak syms won't yet be marked as dynamic. */
- if (h->dynindx == -1
- && !h->forced_local
- && !resolved_to_zero
- && h->root.type == bfd_link_hash_undefweak)
- {
- if (! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
-
- if (GOT_TLS_GDESC_P (tls_type))
- {
- eh->tlsdesc_got = htab->elf.sgotplt->size
- - elf_x86_64_compute_jump_table_size (htab);
- htab->elf.sgotplt->size += 2 * GOT_ENTRY_SIZE;
- h->got.offset = (bfd_vma) -2;
- }
- if (! GOT_TLS_GDESC_P (tls_type)
- || GOT_TLS_GD_P (tls_type))
- {
- s = htab->elf.sgot;
- h->got.offset = s->size;
- s->size += GOT_ENTRY_SIZE;
- if (GOT_TLS_GD_P (tls_type))
- s->size += GOT_ENTRY_SIZE;
- }
- dyn = htab->elf.dynamic_sections_created;
- /* R_X86_64_TLSGD needs one dynamic relocation if local symbol
- and two if global. R_X86_64_GOTTPOFF needs one dynamic
- relocation. No dynamic relocation against resolved undefined
- weak symbol in executable. */
- if ((GOT_TLS_GD_P (tls_type) && h->dynindx == -1)
- || tls_type == GOT_TLS_IE)
- htab->elf.srelgot->size += bed->s->sizeof_rela;
- else if (GOT_TLS_GD_P (tls_type))
- htab->elf.srelgot->size += 2 * bed->s->sizeof_rela;
- else if (! GOT_TLS_GDESC_P (tls_type)
- && ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- && !resolved_to_zero)
- || h->root.type != bfd_link_hash_undefweak)
- && (bfd_link_pic (info)
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
- htab->elf.srelgot->size += bed->s->sizeof_rela;
- if (GOT_TLS_GDESC_P (tls_type))
- {
- htab->elf.srelplt->size += bed->s->sizeof_rela;
- htab->tlsdesc_plt = (bfd_vma) -1;
- }
- }
- else
- h->got.offset = (bfd_vma) -1;
-
- if (eh->dyn_relocs == NULL)
- return TRUE;
-
- /* In the shared -Bsymbolic case, discard space allocated for
- dynamic pc-relative relocs against symbols which turn out to be
- defined in regular objects. For the normal shared case, discard
- space for pc-relative relocs that have become local due to symbol
- visibility changes. */
-
- if (bfd_link_pic (info))
- {
- /* Relocs that use pc_count are those that appear on a call
- insn, or certain REL relocs that can generated via assembly.
- We want calls to protected symbols to resolve directly to the
- function rather than going via the plt. If people want
- function pointer comparisons to work as expected then they
- should avoid writing weird assembly. */
- if (SYMBOL_CALLS_LOCAL (info, h))
- {
- struct elf_dyn_relocs **pp;
-
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
- {
- p->count -= p->pc_count;
- p->pc_count = 0;
- if (p->count == 0)
- *pp = p->next;
- else
- pp = &p->next;
- }
- }
-
- /* Also discard relocs on undefined weak syms with non-default
- visibility or in PIE. */
- if (eh->dyn_relocs != NULL)
- {
- if (h->root.type == bfd_link_hash_undefweak)
- {
- /* Undefined weak symbol is never bound locally in shared
- library. */
- if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
- || resolved_to_zero)
- eh->dyn_relocs = NULL;
- else if (h->dynindx == -1
- && ! h->forced_local
- && ! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
- /* For PIE, discard space for pc-relative relocs against
- symbols which turn out to need copy relocs. */
- else if (bfd_link_executable (info)
- && (h->needs_copy || eh->needs_copy)
- && h->def_dynamic
- && !h->def_regular)
- {
- struct elf_dyn_relocs **pp;
-
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
- {
- if (p->pc_count != 0)
- *pp = p->next;
- else
- pp = &p->next;
- }
- }
- }
- }
- else if (ELIMINATE_COPY_RELOCS)
- {
- /* For the non-shared case, discard space for relocs against
- symbols which turn out to need copy relocs or are not
- dynamic. Keep dynamic relocations for run-time function
- pointer initialization. */
-
- if ((!h->non_got_ref
- || eh->func_pointer_refcount > 0
- || (h->root.type == bfd_link_hash_undefweak
- && !resolved_to_zero))
- && ((h->def_dynamic
- && !h->def_regular)
- || (htab->elf.dynamic_sections_created
- && (h->root.type == bfd_link_hash_undefweak
- || h->root.type == bfd_link_hash_undefined))))
- {
- /* Make sure this symbol is output as a dynamic symbol.
- Undefined weak syms won't yet be marked as dynamic. */
- if (h->dynindx == -1
- && ! h->forced_local
- && ! resolved_to_zero
- && h->root.type == bfd_link_hash_undefweak
- && ! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
-
- /* If that succeeded, we know we'll be keeping all the
- relocs. */
- if (h->dynindx != -1)
- goto keep;
- }
-
- eh->dyn_relocs = NULL;
- eh->func_pointer_refcount = 0;
-
- keep: ;
- }
-
- /* Finally, allocate space. */
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
- {
- asection * sreloc;
-
- sreloc = elf_section_data (p->sec)->sreloc;
-
- BFD_ASSERT (sreloc != NULL);
-
- sreloc->size += p->count * bed->s->sizeof_rela;
- }
-
- return TRUE;
-}
-
-/* Allocate space in .plt, .got and associated reloc sections for
- local dynamic relocs. */
-
-static bfd_boolean
-elf_x86_64_allocate_local_dynrelocs (void **slot, void *inf)
-{
- struct elf_link_hash_entry *h
- = (struct elf_link_hash_entry *) *slot;
-
- if (h->type != STT_GNU_IFUNC
- || !h->def_regular
- || !h->ref_regular
- || !h->forced_local
- || h->root.type != bfd_link_hash_defined)
- abort ();
-
- return elf_x86_64_allocate_dynrelocs (h, inf);
-}
-
-/* Convert load via the GOT slot to load immediate. */
-
-static bfd_boolean
-elf_x86_64_convert_load (bfd *abfd, asection *sec,
- struct bfd_link_info *link_info)
-{
- Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Rela *internal_relocs;
- Elf_Internal_Rela *irel, *irelend;
- bfd_byte *contents;
- struct elf_x86_link_hash_table *htab;
- bfd_boolean changed;
- bfd_signed_vma *local_got_refcounts;
-
- /* Don't even try to convert non-ELF outputs. */
- if (!is_elf_hash_table (link_info->hash))
- return FALSE;
-
- /* Nothing to do if there is no need or no output. */
- if ((sec->flags & (SEC_CODE | SEC_RELOC)) != (SEC_CODE | SEC_RELOC)
- || sec->need_convert_load == 0
- || bfd_is_abs_section (sec->output_section))
- return TRUE;
-
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
-
- /* Load the relocations for this section. */
- internal_relocs = (_bfd_elf_link_read_relocs
- (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
- link_info->keep_memory));
- if (internal_relocs == NULL)
- return FALSE;
-
- changed = FALSE;
- htab = elf_x86_hash_table (link_info, X86_64_ELF_DATA);
- local_got_refcounts = elf_local_got_refcounts (abfd);
-
- /* Get the section contents. */
- if (elf_section_data (sec)->this_hdr.contents != NULL)
- contents = elf_section_data (sec)->this_hdr.contents;
- else
- {
- if (!bfd_malloc_and_get_section (abfd, sec, &contents))
- goto error_return;
- }
-
- irelend = internal_relocs + sec->reloc_count;
- for (irel = internal_relocs; irel < irelend; irel++)
- {
- unsigned int r_type = ELF32_R_TYPE (irel->r_info);
- unsigned int r_symndx;
- struct elf_link_hash_entry *h;
- bfd_boolean converted;
-
- if (r_type != R_X86_64_GOTPCRELX
- && r_type != R_X86_64_REX_GOTPCRELX
- && r_type != R_X86_64_GOTPCREL)
- continue;
-
- r_symndx = htab->r_sym (irel->r_info);
- if (r_symndx < symtab_hdr->sh_info)
- h = _bfd_elf_x86_get_local_sym_hash (htab, sec->owner,
- (const Elf_Internal_Rela *) irel,
- FALSE);
- else
- {
- h = elf_sym_hashes (abfd)[r_symndx - symtab_hdr->sh_info];
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
- }
-
- /* STT_GNU_IFUNC must keep GOTPCREL relocations. */
- if (h != NULL && h->type == STT_GNU_IFUNC)
- continue;
-
- converted = FALSE;
- if (!elf_x86_64_convert_load_reloc (abfd, sec, contents, irel, h,
- &converted, link_info))
- goto error_return;
-
- if (converted)
- {
- changed = converted;
- if (h)
- {
- if (h->got.refcount > 0)
- h->got.refcount -= 1;
- }
- else
- {
- if (local_got_refcounts != NULL
- && local_got_refcounts[r_symndx] > 0)
- local_got_refcounts[r_symndx] -= 1;
- }
- }
- }
-
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
- {
- if (!changed && !link_info->keep_memory)
- free (contents);
- else
- {
- /* Cache the section contents for elf_link_input_bfd. */
- elf_section_data (sec)->this_hdr.contents = contents;
- }
- }
-
- if (elf_section_data (sec)->relocs != internal_relocs)
- {
- if (!changed)
- free (internal_relocs);
- else
- elf_section_data (sec)->relocs = internal_relocs;
- }
-
- return TRUE;
-
- error_return:
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
- free (contents);
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
- free (internal_relocs);
- return FALSE;
-}
-
-/* Set the sizes of the dynamic sections. */
-
-static bfd_boolean
-elf_x86_64_size_dynamic_sections (bfd *output_bfd,
- struct bfd_link_info *info)
-{
- struct elf_x86_link_hash_table *htab;
- bfd *dynobj;
- asection *s;
- bfd_boolean relocs;
- bfd *ibfd;
- const struct elf_backend_data *bed;
-
- htab = elf_x86_hash_table (info, X86_64_ELF_DATA);
- if (htab == NULL)
- return FALSE;
- bed = get_elf_backend_data (output_bfd);
-
- dynobj = htab->elf.dynobj;
- if (dynobj == NULL)
- abort ();
-
- /* Set up .got offsets for local syms, and space for local dynamic
- relocs. */
- for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
- {
- bfd_signed_vma *local_got;
- bfd_signed_vma *end_local_got;
- char *local_tls_type;
- bfd_vma *local_tlsdesc_gotent;
- bfd_size_type locsymcount;
- Elf_Internal_Shdr *symtab_hdr;
- asection *srel;
-
- if (! is_x86_64_elf (ibfd))
- continue;
-
- for (s = ibfd->sections; s != NULL; s = s->next)
- {
- struct elf_dyn_relocs *p;
-
- if (!elf_x86_64_convert_load (ibfd, s, info))
- return FALSE;
-
- for (p = (struct elf_dyn_relocs *)
- (elf_section_data (s)->local_dynrel);
- p != NULL;
- p = p->next)
- {
- if (!bfd_is_abs_section (p->sec)
- && bfd_is_abs_section (p->sec->output_section))
- {
- /* Input section has been discarded, either because
- it is a copy of a linkonce section or due to
- linker script /DISCARD/, so we'll be discarding
- the relocs too. */
- }
- else if (p->count != 0)
- {
- srel = elf_section_data (p->sec)->sreloc;
- srel->size += p->count * bed->s->sizeof_rela;
- if ((p->sec->output_section->flags & SEC_READONLY) != 0
- && (info->flags & DF_TEXTREL) == 0)
- {
- info->flags |= DF_TEXTREL;
- if ((info->warn_shared_textrel && bfd_link_pic (info))
- || info->error_textrel)
- /* xgettext:c-format */
- info->callbacks->einfo (_("%P: %B: warning: relocation in readonly section `%A'\n"),
- p->sec->owner, p->sec);
- }
- }
- }
- }
-
- local_got = elf_local_got_refcounts (ibfd);
- if (!local_got)
- continue;
-
- symtab_hdr = &elf_symtab_hdr (ibfd);
- locsymcount = symtab_hdr->sh_info;
- end_local_got = local_got + locsymcount;
- local_tls_type = elf_x86_local_got_tls_type (ibfd);
- local_tlsdesc_gotent = elf_x86_local_tlsdesc_gotent (ibfd);
- s = htab->elf.sgot;
- srel = htab->elf.srelgot;
- for (; local_got < end_local_got;
- ++local_got, ++local_tls_type, ++local_tlsdesc_gotent)
- {
- *local_tlsdesc_gotent = (bfd_vma) -1;
- if (*local_got > 0)
- {
- if (GOT_TLS_GDESC_P (*local_tls_type))
- {
- *local_tlsdesc_gotent = htab->elf.sgotplt->size
- - elf_x86_64_compute_jump_table_size (htab);
- htab->elf.sgotplt->size += 2 * GOT_ENTRY_SIZE;
- *local_got = (bfd_vma) -2;
- }
- if (! GOT_TLS_GDESC_P (*local_tls_type)
- || GOT_TLS_GD_P (*local_tls_type))
- {
- *local_got = s->size;
- s->size += GOT_ENTRY_SIZE;
- if (GOT_TLS_GD_P (*local_tls_type))
- s->size += GOT_ENTRY_SIZE;
- }
- if (bfd_link_pic (info)
- || GOT_TLS_GD_ANY_P (*local_tls_type)
- || *local_tls_type == GOT_TLS_IE)
- {
- if (GOT_TLS_GDESC_P (*local_tls_type))
- {
- htab->elf.srelplt->size
- += bed->s->sizeof_rela;
- htab->tlsdesc_plt = (bfd_vma) -1;
- }
- if (! GOT_TLS_GDESC_P (*local_tls_type)
- || GOT_TLS_GD_P (*local_tls_type))
- srel->size += bed->s->sizeof_rela;
- }
- }
- else
- *local_got = (bfd_vma) -1;
- }
- }
-
- if (htab->tls_ld_or_ldm_got.refcount > 0)
- {
- /* Allocate 2 got entries and 1 dynamic reloc for R_X86_64_TLSLD
- relocs. */
- htab->tls_ld_or_ldm_got.offset = htab->elf.sgot->size;
- htab->elf.sgot->size += 2 * GOT_ENTRY_SIZE;
- htab->elf.srelgot->size += bed->s->sizeof_rela;
- }
- else
- htab->tls_ld_or_ldm_got.offset = -1;
-
- /* Allocate global sym .plt and .got entries, and space for global
- sym dynamic relocs. */
- elf_link_hash_traverse (&htab->elf, elf_x86_64_allocate_dynrelocs,
- info);
-
- /* Allocate .plt and .got entries, and space for local symbols. */
- htab_traverse (htab->loc_hash_table,
- elf_x86_64_allocate_local_dynrelocs,
- info);
-
- /* For every jump slot reserved in the sgotplt, reloc_count is
- incremented. However, when we reserve space for TLS descriptors,
- it's not incremented, so in order to compute the space reserved
- for them, it suffices to multiply the reloc count by the jump
- slot size.
-
- PR ld/13302: We start next_irelative_index at the end of .rela.plt
- so that R_X86_64_IRELATIVE entries come last. */
- if (htab->elf.srelplt)
- {
- htab->sgotplt_jump_table_size
- = elf_x86_64_compute_jump_table_size (htab);
- htab->next_irelative_index = htab->elf.srelplt->reloc_count - 1;
- }
- else if (htab->elf.irelplt)
- htab->next_irelative_index = htab->elf.irelplt->reloc_count - 1;
-
- if (htab->tlsdesc_plt)
- {
- /* If we're not using lazy TLS relocations, don't generate the
- PLT and GOT entries they require. */
- if ((info->flags & DF_BIND_NOW))
- htab->tlsdesc_plt = 0;
- else
- {
- htab->tlsdesc_got = htab->elf.sgot->size;
- htab->elf.sgot->size += GOT_ENTRY_SIZE;
- /* Reserve room for the initial entry.
- FIXME: we could probably do away with it in this case. */
- if (htab->elf.splt->size == 0)
- htab->elf.splt->size = htab->plt.plt_entry_size;
- htab->tlsdesc_plt = htab->elf.splt->size;
- htab->elf.splt->size += htab->plt.plt_entry_size;
- }
- }
-
- if (htab->elf.sgotplt)
- {
- /* Don't allocate .got.plt section if there are no GOT nor PLT
- entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
- if ((htab->elf.hgot == NULL
- || !htab->elf.hgot->ref_regular_nonweak)
- && (htab->elf.sgotplt->size
- == get_elf_backend_data (output_bfd)->got_header_size)
- && (htab->elf.splt == NULL
- || htab->elf.splt->size == 0)
- && (htab->elf.sgot == NULL
- || htab->elf.sgot->size == 0)
- && (htab->elf.iplt == NULL
- || htab->elf.iplt->size == 0)
- && (htab->elf.igotplt == NULL
- || htab->elf.igotplt->size == 0))
- htab->elf.sgotplt->size = 0;
- }
-
- if (_bfd_elf_eh_frame_present (info))
- {
- if (htab->plt_eh_frame != NULL
- && htab->elf.splt != NULL
- && htab->elf.splt->size != 0
- && !bfd_is_abs_section (htab->elf.splt->output_section))
- htab->plt_eh_frame->size = htab->plt.eh_frame_plt_size;
-
- if (htab->plt_got_eh_frame != NULL
- && htab->plt_got != NULL
- && htab->plt_got->size != 0
- && !bfd_is_abs_section (htab->plt_got->output_section))
- htab->plt_got_eh_frame->size
- = htab->non_lazy_plt->eh_frame_plt_size;
-
- /* Unwind info for the second PLT and .plt.got sections are
- identical. */
- if (htab->plt_second_eh_frame != NULL
- && htab->plt_second != NULL
- && htab->plt_second->size != 0
- && !bfd_is_abs_section (htab->plt_second->output_section))
- htab->plt_second_eh_frame->size
- = htab->non_lazy_plt->eh_frame_plt_size;
- }
-
- /* We now have determined the sizes of the various dynamic sections.
- Allocate memory for them. */
- relocs = FALSE;
- for (s = dynobj->sections; s != NULL; s = s->next)
- {
- if ((s->flags & SEC_LINKER_CREATED) == 0)
- continue;
-
- if (s == htab->elf.splt
- || s == htab->elf.sgot
- || s == htab->elf.sgotplt
- || s == htab->elf.iplt
- || s == htab->elf.igotplt
- || s == htab->plt_second
- || s == htab->plt_got
- || s == htab->plt_eh_frame
- || s == htab->plt_got_eh_frame
- || s == htab->plt_second_eh_frame
- || s == htab->elf.sdynbss
- || s == htab->elf.sdynrelro)
- {
- /* Strip this section if we don't need it; see the
- comment below. */
- }
- else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
- {
- if (s->size != 0 && s != htab->elf.srelplt)
- relocs = TRUE;
-
- /* We use the reloc_count field as a counter if we need
- to copy relocs into the output file. */
- if (s != htab->elf.srelplt)
- s->reloc_count = 0;
- }
- else
- {
- /* It's not one of our sections, so don't allocate space. */
- continue;
- }
-
- if (s->size == 0)
- {
- /* If we don't need this section, strip it from the
- output file. This is mostly to handle .rela.bss and
- .rela.plt. We must create both sections in
- create_dynamic_sections, because they must be created
- before the linker maps input sections to output
- sections. The linker does that before
- adjust_dynamic_symbol is called, and it is that
- function which decides whether anything needs to go
- into these sections. */
-
- s->flags |= SEC_EXCLUDE;
- continue;
- }
-
- if ((s->flags & SEC_HAS_CONTENTS) == 0)
- continue;
-
- /* Allocate memory for the section contents. We use bfd_zalloc
- here in case unused entries are not reclaimed before the
- section's contents are written out. This should not happen,
- but this way if it does, we get a R_X86_64_NONE reloc instead
- of garbage. */
- s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
- if (s->contents == NULL)
- return FALSE;
- }
-
- if (htab->plt_eh_frame != NULL
- && htab->plt_eh_frame->contents != NULL)
- {
- memcpy (htab->plt_eh_frame->contents,
- htab->plt.eh_frame_plt, htab->plt_eh_frame->size);
- bfd_put_32 (dynobj, htab->elf.splt->size,
- htab->plt_eh_frame->contents + PLT_FDE_LEN_OFFSET);
- }
-
- if (htab->plt_got_eh_frame != NULL
- && htab->plt_got_eh_frame->contents != NULL)
- {
- memcpy (htab->plt_got_eh_frame->contents,
- htab->non_lazy_plt->eh_frame_plt,
- htab->plt_got_eh_frame->size);
- bfd_put_32 (dynobj, htab->plt_got->size,
- (htab->plt_got_eh_frame->contents
- + PLT_FDE_LEN_OFFSET));
- }
-
- if (htab->plt_second_eh_frame != NULL
- && htab->plt_second_eh_frame->contents != NULL)
- {
- memcpy (htab->plt_second_eh_frame->contents,
- htab->non_lazy_plt->eh_frame_plt,
- htab->plt_second_eh_frame->size);
- bfd_put_32 (dynobj, htab->plt_second->size,
- (htab->plt_second_eh_frame->contents
- + PLT_FDE_LEN_OFFSET));
- }
-
- if (htab->elf.dynamic_sections_created)
- {
- /* Add some entries to the .dynamic section. We fill in the
- values later, in elf_x86_64_finish_dynamic_sections, but we
- must add the entries now so that we get the correct size for
- the .dynamic section. The DT_DEBUG entry is filled in by the
- dynamic linker and used by the debugger. */
-#define add_dynamic_entry(TAG, VAL) \
- _bfd_elf_add_dynamic_entry (info, TAG, VAL)
-
- if (bfd_link_executable (info))
- {
- if (!add_dynamic_entry (DT_DEBUG, 0))
- return FALSE;
- }
-
- if (htab->elf.splt->size != 0)
- {
- /* DT_PLTGOT is used by prelink even if there is no PLT
- relocation. */
- if (!add_dynamic_entry (DT_PLTGOT, 0))
- return FALSE;
- }
-
- if (htab->elf.srelplt->size != 0)
- {
- if (!add_dynamic_entry (DT_PLTRELSZ, 0)
- || !add_dynamic_entry (DT_PLTREL, DT_RELA)
- || !add_dynamic_entry (DT_JMPREL, 0))
- return FALSE;
- }
-
- if (htab->tlsdesc_plt
- && (!add_dynamic_entry (DT_TLSDESC_PLT, 0)
- || !add_dynamic_entry (DT_TLSDESC_GOT, 0)))
- return FALSE;
-
- if (relocs)
- {
- if (!add_dynamic_entry (DT_RELA, 0)
- || !add_dynamic_entry (DT_RELASZ, 0)
- || !add_dynamic_entry (DT_RELAENT, bed->s->sizeof_rela))
- return FALSE;
-
- /* If any dynamic relocs apply to a read-only section,
- then we need a DT_TEXTREL entry. */
- if ((info->flags & DF_TEXTREL) == 0)
- elf_link_hash_traverse (&htab->elf,
- _bfd_x86_elf_readonly_dynrelocs,
- info);
-
- if ((info->flags & DF_TEXTREL) != 0)
- {
- if (htab->readonly_dynrelocs_against_ifunc)
- {
- info->callbacks->einfo
- (_("%P%X: read-only segment has dynamic IFUNC relocations; recompile with -fPIC\n"));
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
-
- if (!add_dynamic_entry (DT_TEXTREL, 0))
- return FALSE;
- }
- }
- }
-#undef add_dynamic_entry
-
- return TRUE;
-}
-
-/* Return the relocation value for @tpoff relocation
- if STT_TLS virtual address is ADDRESS. */
-
-static bfd_vma
-elf_x86_64_tpoff (struct bfd_link_info *info, bfd_vma address)
-{
- struct elf_link_hash_table *htab = elf_hash_table (info);
- const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
- bfd_vma static_tls_size;
-
- /* If tls_segment is NULL, we should have signalled an error already. */
- if (htab->tls_sec == NULL)
- return 0;
-
- /* Consider special static TLS alignment requirements. */
- static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
- return address - static_tls_size - htab->tls_sec->vma;
-}
-
-/* Is the instruction before OFFSET in CONTENTS a 32bit relative
- branch? */
-
-static bfd_boolean
-is_32bit_relative_branch (bfd_byte *contents, bfd_vma offset)
-{
- /* Opcode Instruction
- 0xe8 call
- 0xe9 jump
- 0x0f 0x8x conditional jump */
- return ((offset > 0
- && (contents [offset - 1] == 0xe8
- || contents [offset - 1] == 0xe9))
- || (offset > 1
- && contents [offset - 2] == 0x0f
- && (contents [offset - 1] & 0xf0) == 0x80));
-}
-
-/* Relocate an x86_64 ELF section. */
-
-static bfd_boolean
-elf_x86_64_relocate_section (bfd *output_bfd,
- struct bfd_link_info *info,
- bfd *input_bfd,
- asection *input_section,
- bfd_byte *contents,
- Elf_Internal_Rela *relocs,
- Elf_Internal_Sym *local_syms,
- asection **local_sections)
-{
- struct elf_x86_link_hash_table *htab;
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- bfd_vma *local_got_offsets;
- bfd_vma *local_tlsdesc_gotents;
- Elf_Internal_Rela *rel;
- Elf_Internal_Rela *wrel;
- Elf_Internal_Rela *relend;
- unsigned int plt_entry_size;
-
- BFD_ASSERT (is_x86_64_elf (input_bfd));
-
- /* Skip if check_relocs failed. */
- if (input_section->check_relocs_failed)
- return FALSE;
-
- htab = elf_x86_hash_table (info, X86_64_ELF_DATA);
- if (htab == NULL)
- return FALSE;