return TRUE;
}
\f
-/* Allocate a pointer to live in a linker created section. */
-
-bfd_boolean
-elf_create_pointer_linker_section (abfd, info, lsect, h, rel)
- bfd *abfd;
- struct bfd_link_info *info;
- elf_linker_section_t *lsect;
- struct elf_link_hash_entry *h;
- const Elf_Internal_Rela *rel;
-{
- elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
- elf_linker_section_pointers_t *linker_section_ptr;
- unsigned long r_symndx = ELF_R_SYM (rel->r_info);
- bfd_size_type amt;
-
- BFD_ASSERT (lsect != NULL);
-
- /* Is this a global symbol? */
- if (h != NULL)
- {
- /* Has this symbol already been allocated? If so, our work is done. */
- if (_bfd_elf_find_pointer_linker_section (h->linker_section_pointer,
- rel->r_addend,
- lsect->which))
- return TRUE;
-
- ptr_linker_section_ptr = &h->linker_section_pointer;
- /* Make sure this symbol is output as a dynamic symbol. */
- if (h->dynindx == -1)
- {
- if (! elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
-
- if (lsect->rel_section)
- lsect->rel_section->_raw_size += sizeof (Elf_External_Rela);
- }
- else
- {
- /* Allocation of a pointer to a local symbol. */
- elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
-
- /* Allocate a table to hold the local symbols if first time. */
- if (!ptr)
- {
- unsigned int num_symbols = elf_tdata (abfd)->symtab_hdr.sh_info;
- register unsigned int i;
-
- amt = num_symbols;
- amt *= sizeof (elf_linker_section_pointers_t *);
- ptr = (elf_linker_section_pointers_t **) bfd_alloc (abfd, amt);
-
- if (!ptr)
- return FALSE;
-
- elf_local_ptr_offsets (abfd) = ptr;
- for (i = 0; i < num_symbols; i++)
- ptr[i] = (elf_linker_section_pointers_t *) 0;
- }
-
- /* Has this symbol already been allocated? If so, our work is done. */
- if (_bfd_elf_find_pointer_linker_section (ptr[r_symndx],
- rel->r_addend,
- lsect->which))
- return TRUE;
-
- ptr_linker_section_ptr = &ptr[r_symndx];
-
- if (info->shared)
- {
- /* If we are generating a shared object, we need to
- output a R_<xxx>_RELATIVE reloc so that the
- dynamic linker can adjust this GOT entry. */
- BFD_ASSERT (lsect->rel_section != NULL);
- lsect->rel_section->_raw_size += sizeof (Elf_External_Rela);
- }
- }
-
- /* Allocate space for a pointer in the linker section, and allocate
- a new pointer record from internal memory. */
- BFD_ASSERT (ptr_linker_section_ptr != NULL);
- amt = sizeof (elf_linker_section_pointers_t);
- linker_section_ptr = (elf_linker_section_pointers_t *) bfd_alloc (abfd, amt);
-
- if (!linker_section_ptr)
- return FALSE;
-
- linker_section_ptr->next = *ptr_linker_section_ptr;
- linker_section_ptr->addend = rel->r_addend;
- linker_section_ptr->which = lsect->which;
- linker_section_ptr->written_address_p = FALSE;
- *ptr_linker_section_ptr = linker_section_ptr;
-
-#if 0
- if (lsect->hole_size && lsect->hole_offset < lsect->max_hole_offset)
- {
- linker_section_ptr->offset = (lsect->section->_raw_size
- - lsect->hole_size + (ARCH_SIZE / 8));
- lsect->hole_offset += ARCH_SIZE / 8;
- lsect->sym_offset += ARCH_SIZE / 8;
- if (lsect->sym_hash)
- {
- /* Bump up symbol value if needed. */
- lsect->sym_hash->root.u.def.value += ARCH_SIZE / 8;
-#ifdef DEBUG
- fprintf (stderr, "Bump up %s by %ld, current value = %ld\n",
- lsect->sym_hash->root.root.string,
- (long) ARCH_SIZE / 8,
- (long) lsect->sym_hash->root.u.def.value);
-#endif
- }
- }
- else
-#endif
- linker_section_ptr->offset = lsect->section->_raw_size;
-
- lsect->section->_raw_size += ARCH_SIZE / 8;
-
-#ifdef DEBUG
- fprintf (stderr,
- "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
- lsect->name, (long) linker_section_ptr->offset,
- (long) lsect->section->_raw_size);
-#endif
-
- return TRUE;
-}
-\f
-#if ARCH_SIZE==64
-#define bfd_put_ptr(BFD,VAL,ADDR) bfd_put_64 (BFD, VAL, ADDR)
-#endif
-#if ARCH_SIZE==32
-#define bfd_put_ptr(BFD,VAL,ADDR) bfd_put_32 (BFD, VAL, ADDR)
-#endif
-
-/* Fill in the address for a pointer generated in a linker section. */
-
-bfd_vma
-elf_finish_pointer_linker_section (output_bfd, input_bfd, info, lsect, h,
- relocation, rel, relative_reloc)
- bfd *output_bfd;
- bfd *input_bfd;
- struct bfd_link_info *info;
- elf_linker_section_t *lsect;
- struct elf_link_hash_entry *h;
- bfd_vma relocation;
- const Elf_Internal_Rela *rel;
- int relative_reloc;
-{
- elf_linker_section_pointers_t *linker_section_ptr;
-
- BFD_ASSERT (lsect != NULL);
-
- if (h != NULL)
- {
- /* Handle global symbol. */
- linker_section_ptr = (_bfd_elf_find_pointer_linker_section
- (h->linker_section_pointer,
- rel->r_addend,
- lsect->which));
-
- BFD_ASSERT (linker_section_ptr != NULL);
-
- if (! elf_hash_table (info)->dynamic_sections_created
- || (info->shared
- && info->symbolic
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
- {
- /* This is actually a static link, or it is a
- -Bsymbolic link and the symbol is defined
- locally. We must initialize this entry in the
- global section.
-
- When doing a dynamic link, we create a .rela.<xxx>
- relocation entry to initialize the value. This
- is done in the finish_dynamic_symbol routine. */
- if (!linker_section_ptr->written_address_p)
- {
- linker_section_ptr->written_address_p = TRUE;
- bfd_put_ptr (output_bfd,
- relocation + linker_section_ptr->addend,
- (lsect->section->contents
- + linker_section_ptr->offset));
- }
- }
- }
- else
- {
- /* Handle local symbol. */
- unsigned long r_symndx = ELF_R_SYM (rel->r_info);
- BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
- BFD_ASSERT (elf_local_ptr_offsets (input_bfd)[r_symndx] != NULL);
- linker_section_ptr = (_bfd_elf_find_pointer_linker_section
- (elf_local_ptr_offsets (input_bfd)[r_symndx],
- rel->r_addend,
- lsect->which));
-
- BFD_ASSERT (linker_section_ptr != NULL);
-
- /* Write out pointer if it hasn't been rewritten out before. */
- if (!linker_section_ptr->written_address_p)
- {
- linker_section_ptr->written_address_p = TRUE;
- bfd_put_ptr (output_bfd, relocation + linker_section_ptr->addend,
- lsect->section->contents + linker_section_ptr->offset);
-
- if (info->shared)
- {
- asection *srel = lsect->rel_section;
- Elf_Internal_Rela outrel[MAX_INT_RELS_PER_EXT_REL];
- bfd_byte *erel;
- struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
- unsigned int i;
-
- /* We need to generate a relative reloc for the dynamic
- linker. */
- if (!srel)
- {
- srel = bfd_get_section_by_name (elf_hash_table (info)->dynobj,
- lsect->rel_name);
- lsect->rel_section = srel;
- }
-
- BFD_ASSERT (srel != NULL);
-
- for (i = 0; i < bed->s->int_rels_per_ext_rel; i++)
- {
- outrel[i].r_offset = (lsect->section->output_section->vma
- + lsect->section->output_offset
- + linker_section_ptr->offset);
- outrel[i].r_info = 0;
- outrel[i].r_addend = 0;
- }
- outrel[0].r_info = ELF_R_INFO (0, relative_reloc);
- erel = lsect->section->contents;
- erel += (elf_section_data (lsect->section)->rel_count++
- * sizeof (Elf_External_Rela));
- elf_swap_reloca_out (output_bfd, outrel, erel);
- }
- }
- }
-
- relocation = (lsect->section->output_offset
- + linker_section_ptr->offset
- - lsect->hole_offset
- - lsect->sym_offset);
-
-#ifdef DEBUG
- fprintf (stderr,
- "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
- lsect->name, (long) relocation, (long) relocation);
-#endif
-
- /* Subtract out the addend, because it will get added back in by the normal
- processing. */
- return relocation - linker_section_ptr->addend;
-}
-\f
/* Garbage collect unused sections. */
static bfd_boolean elf_gc_mark
projects / deliverable / binutils-gdb.git / blobdiff