-/* Implement elf_backend_gc_sweep_hook:
- Update the got entry reference counts for the section being removed. */
-static bfd_boolean
-nios2_elf32_gc_sweep_hook (bfd *abfd,
- struct bfd_link_info *info,
- asection *sec,
- const Elf_Internal_Rela *relocs)
-{
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- bfd_signed_vma *local_got_refcounts;
- const Elf_Internal_Rela *rel, *relend;
- bfd *dynobj;
-
- if (info->relocatable)
- return TRUE;
-
- elf_section_data (sec)->local_dynrel = NULL;
-
- dynobj = elf_hash_table (info)->dynobj;
- if (dynobj == NULL)
- return TRUE;
-
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (abfd);
- local_got_refcounts = elf_local_got_refcounts (abfd);
-
- relend = relocs + sec->reloc_count;
- for (rel = relocs; rel < relend; rel++)
- {
- unsigned long r_symndx;
- struct elf_link_hash_entry *h = NULL;
- int r_type;
-
- r_symndx = ELF32_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- h = sym_hashes[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;
- }
-
- r_type = ELF32_R_TYPE (rel->r_info);
- switch (r_type)
- {
- case R_NIOS2_GOT16:
- case R_NIOS2_GOT_LO:
- case R_NIOS2_GOT_HA:
- case R_NIOS2_CALL16:
- case R_NIOS2_CALL_LO:
- case R_NIOS2_CALL_HA:
- if (h != NULL)
- {
- if (h->got.refcount > 0)
- --h->got.refcount;
- }
- else if (local_got_refcounts != NULL)
- {
- if (local_got_refcounts[r_symndx] > 0)
- --local_got_refcounts[r_symndx];
- }
- break;
-
- case R_NIOS2_PCREL_LO:
- case R_NIOS2_PCREL_HA:
- case R_NIOS2_BFD_RELOC_32:
- case R_NIOS2_CALL26:
- case R_NIOS2_CALL26_NOAT:
- if (h != NULL)
- {
- struct elf32_nios2_link_hash_entry *eh;
- struct elf32_nios2_dyn_relocs **pp;
- struct elf32_nios2_dyn_relocs *p;
-
- eh = (struct elf32_nios2_link_hash_entry *) h;
-
- if (h->plt.refcount > 0)
- --h->plt.refcount;
-
- if (r_type == R_NIOS2_PCREL_LO || r_type == R_NIOS2_PCREL_HA
- || r_type == R_NIOS2_BFD_RELOC_32)
- {
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL;
- pp = &p->next)
- if (p->sec == sec)
- {
- p->count -= 1;
- if (p->count == 0)
- *pp = p->next;
- break;
- }
- }
- }
- break;
-
- default:
- break;
- }
- }
-
- return TRUE;
-}
-