-/* Update the got entry reference counts for the section being removed. */
-
-static bfd_boolean
-sh_elf_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;
- union gotref *local_funcdesc;
- const Elf_Internal_Rela *rel, *relend;
-
- if (info->relocatable)
- return TRUE;
-
- elf_section_data (sec)->local_dynrel = NULL;
-
- symtab_hdr = &elf_symtab_hdr (abfd);
- sym_hashes = elf_sym_hashes (abfd);
- local_got_refcounts = elf_local_got_refcounts (abfd);
- local_funcdesc = sh_elf_local_funcdesc (abfd);
-
- relend = relocs + sec->reloc_count;
- for (rel = relocs; rel < relend; rel++)
- {
- unsigned long r_symndx;
- unsigned int r_type;
- struct elf_link_hash_entry *h = NULL;
-#ifdef INCLUDE_SHMEDIA
- int seen_stt_datalabel = 0;
-#endif
-
- r_symndx = ELF32_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- struct elf_sh_link_hash_entry *eh;
- struct elf_sh_dyn_relocs **pp;
- struct elf_sh_dyn_relocs *p;
-
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- {
-#ifdef INCLUDE_SHMEDIA
- seen_stt_datalabel |= h->type == STT_DATALABEL;
-#endif
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
- }
- eh = (struct elf_sh_link_hash_entry *) h;
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
- if (p->sec == sec)
- {
- /* Everything must go for SEC. */
- *pp = p->next;
- break;
- }
- }
-
- r_type = ELF32_R_TYPE (rel->r_info);
- switch (sh_elf_optimized_tls_reloc (info, r_type, h != NULL))
- {
- case R_SH_TLS_LD_32:
- if (sh_elf_hash_table (info)->tls_ldm_got.refcount > 0)
- sh_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
- break;
-
- case R_SH_GOT32:
- case R_SH_GOT20:
- case R_SH_GOTOFF:
- case R_SH_GOTOFF20:
- case R_SH_GOTPC:
-#ifdef INCLUDE_SHMEDIA
- case R_SH_GOT_LOW16:
- case R_SH_GOT_MEDLOW16:
- case R_SH_GOT_MEDHI16:
- case R_SH_GOT_HI16:
- case R_SH_GOT10BY4:
- case R_SH_GOT10BY8:
- case R_SH_GOTOFF_LOW16:
- case R_SH_GOTOFF_MEDLOW16:
- case R_SH_GOTOFF_MEDHI16:
- case R_SH_GOTOFF_HI16:
- case R_SH_GOTPC_LOW16:
- case R_SH_GOTPC_MEDLOW16:
- case R_SH_GOTPC_MEDHI16:
- case R_SH_GOTPC_HI16:
-#endif
- case R_SH_TLS_GD_32:
- case R_SH_TLS_IE_32:
- case R_SH_GOTFUNCDESC:
- case R_SH_GOTFUNCDESC20:
- if (h != NULL)
- {
-#ifdef INCLUDE_SHMEDIA
- if (seen_stt_datalabel)
- {
- struct elf_sh_link_hash_entry *eh;
- eh = (struct elf_sh_link_hash_entry *) h;
- if (eh->datalabel_got.refcount > 0)
- eh->datalabel_got.refcount -= 1;
- }
- else
-#endif
- if (h->got.refcount > 0)
- h->got.refcount -= 1;
- }
- else if (local_got_refcounts != NULL)
- {
-#ifdef INCLUDE_SHMEDIA
- if (rel->r_addend & 1)
- {
- if (local_got_refcounts[symtab_hdr->sh_info + r_symndx] > 0)
- local_got_refcounts[symtab_hdr->sh_info + r_symndx] -= 1;
- }
- else
-#endif
- if (local_got_refcounts[r_symndx] > 0)
- local_got_refcounts[r_symndx] -= 1;
- }
- break;
-
- case R_SH_FUNCDESC:
- if (h != NULL)
- sh_elf_hash_entry (h)->abs_funcdesc_refcount -= 1;
- else if (sh_elf_hash_table (info)->fdpic_p && !info->shared)
- sh_elf_hash_table (info)->srofixup->size -= 4;
-
- /* Fall through. */
-
- case R_SH_GOTOFFFUNCDESC:
- case R_SH_GOTOFFFUNCDESC20:
- if (h != NULL)
- sh_elf_hash_entry (h)->funcdesc.refcount -= 1;
- else
- local_funcdesc[r_symndx].refcount -= 1;
- break;
-
- case R_SH_DIR32:
- if (sh_elf_hash_table (info)->fdpic_p && !info->shared
- && (sec->flags & SEC_ALLOC) != 0)
- sh_elf_hash_table (info)->srofixup->size -= 4;
- /* Fall thru */
-
- case R_SH_REL32:
- if (info->shared)
- break;
- /* Fall thru */
-
- case R_SH_PLT32:
-#ifdef INCLUDE_SHMEDIA
- case R_SH_PLT_LOW16:
- case R_SH_PLT_MEDLOW16:
- case R_SH_PLT_MEDHI16:
- case R_SH_PLT_HI16:
-#endif
- if (h != NULL)
- {
- if (h->plt.refcount > 0)
- h->plt.refcount -= 1;
- }
- break;
-
- case R_SH_GOTPLT32:
-#ifdef INCLUDE_SHMEDIA
- case R_SH_GOTPLT_LOW16:
- case R_SH_GOTPLT_MEDLOW16:
- case R_SH_GOTPLT_MEDHI16:
- case R_SH_GOTPLT_HI16:
- case R_SH_GOTPLT10BY4:
- case R_SH_GOTPLT10BY8:
-#endif
- if (h != NULL)
- {
- struct elf_sh_link_hash_entry *eh;
- eh = (struct elf_sh_link_hash_entry *) h;
- if (eh->gotplt_refcount > 0)
- {
- eh->gotplt_refcount -= 1;
- if (h->plt.refcount > 0)
- h->plt.refcount -= 1;
- }
-#ifdef INCLUDE_SHMEDIA
- else if (seen_stt_datalabel)
- {
- if (eh->datalabel_got.refcount > 0)
- eh->datalabel_got.refcount -= 1;
- }
-#endif
- else if (h->got.refcount > 0)
- h->got.refcount -= 1;
- }
- else if (local_got_refcounts != NULL)
- {
-#ifdef INCLUDE_SHMEDIA
- if (rel->r_addend & 1)
- {
- if (local_got_refcounts[symtab_hdr->sh_info + r_symndx] > 0)
- local_got_refcounts[symtab_hdr->sh_info + r_symndx] -= 1;
- }
- else
-#endif
- if (local_got_refcounts[r_symndx] > 0)
- local_got_refcounts[r_symndx] -= 1;
- }
- break;
-
- default:
- break;
- }
- }
-
- return TRUE;
-}
-
projects / deliverable / binutils-gdb.git / blobdiff