/* ELF support for AArch64.
- Copyright 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
+ Copyright 2009-2013 Free Software Foundation, Inc.
Contributed by ARM Ltd.
This file is part of BFD, the Binary File Descriptor library.
case 408: /* sizeof(struct elf_prstatus) on Linux/arm64. */
/* pr_cursig */
- elf_tdata (abfd)->core_signal
+ elf_tdata (abfd)->core->signal
= bfd_get_16 (abfd, note->descdata + 12);
/* pr_pid */
- elf_tdata (abfd)->core_lwpid
+ elf_tdata (abfd)->core->lwpid
= bfd_get_32 (abfd, note->descdata + 32);
/* pr_reg */
offset = 112;
- size = 288;
+ size = 272;
break;
}
struct elf64_aarch64_link_hash_table *ret;
bfd_size_type amt = sizeof (struct elf64_aarch64_link_hash_table);
- ret = bfd_malloc (amt);
+ ret = bfd_zmalloc (amt);
if (ret == NULL)
return NULL;
return NULL;
}
- ret->sdynbss = NULL;
- ret->srelbss = NULL;
-
ret->plt_header_size = PLT_ENTRY_SIZE;
ret->plt_entry_size = PLT_SMALL_ENTRY_SIZE;
-
- ret->sym_cache.abfd = NULL;
ret->obfd = abfd;
-
- ret->stub_bfd = NULL;
- ret->add_stub_section = NULL;
- ret->layout_sections_again = NULL;
- ret->stub_group = NULL;
- ret->bfd_count = 0;
- ret->top_index = 0;
- ret->input_list = NULL;
- ret->tlsdesc_plt = 0;
ret->dt_tlsdesc_got = (bfd_vma) - 1;
if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc,
= (struct elf64_aarch64_link_hash_table *) hash;
bfd_hash_table_free (&ret->stub_hash_table);
- _bfd_generic_link_hash_table_free (hash);
+ _bfd_elf_link_hash_table_free (hash);
}
static bfd_vma
/* Update the got entry reference counts for the section being removed. */
static bfd_boolean
-elf64_aarch64_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- asection *sec ATTRIBUTE_UNUSED,
- const Elf_Internal_Rela *
- relocs ATTRIBUTE_UNUSED)
+elf64_aarch64_gc_sweep_hook (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *sec,
+ const Elf_Internal_Rela * relocs)
{
+ struct elf64_aarch64_link_hash_table *htab;
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ struct elf_aarch64_local_symbol *locals;
+ const Elf_Internal_Rela *rel, *relend;
+
+ if (info->relocatable)
+ return TRUE;
+
+ htab = elf64_aarch64_hash_table (info);
+
+ if (htab == NULL)
+ return FALSE;
+
+ elf_section_data (sec)->local_dynrel = NULL;
+
+ symtab_hdr = &elf_symtab_hdr (abfd);
+ sym_hashes = elf_sym_hashes (abfd);
+
+ locals = elf64_aarch64_locals (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;
+
+ r_symndx = ELF64_R_SYM (rel->r_info);
+
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ struct elf64_aarch64_link_hash_entry *eh;
+ struct elf_dyn_relocs **pp;
+ struct elf_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)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ eh = (struct elf64_aarch64_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;
+ }
+ }
+ }
+ else
+ {
+ Elf_Internal_Sym *isym;
+
+ /* A local symbol. */
+ isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ abfd, r_symndx);
+ if (isym == NULL)
+ return FALSE;
+ }
+
+ r_type = ELF64_R_TYPE (rel->r_info);
+ r_type = aarch64_tls_transition (abfd,info, r_type, h ,r_symndx);
+ switch (r_type)
+ {
+ case R_AARCH64_LD64_GOT_LO12_NC:
+ case R_AARCH64_GOT_LD_PREL19:
+ case R_AARCH64_ADR_GOT_PAGE:
+ case R_AARCH64_TLSGD_ADR_PAGE21:
+ case R_AARCH64_TLSGD_ADD_LO12_NC:
+ case R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
+ case R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
+ case R_AARCH64_TLSLE_ADD_TPREL_LO12:
+ case R_AARCH64_TLSLE_ADD_TPREL_HI12:
+ case R_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
+ case R_AARCH64_TLSLE_MOVW_TPREL_G2:
+ case R_AARCH64_TLSLE_MOVW_TPREL_G1:
+ case R_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
+ case R_AARCH64_TLSLE_MOVW_TPREL_G0:
+ case R_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
+ case R_AARCH64_TLSDESC_ADR_PAGE:
+ case R_AARCH64_TLSDESC_ADD_LO12_NC:
+ case R_AARCH64_TLSDESC_LD64_LO12_NC:
+ if (h != NULL)
+ {
+ if (h->got.refcount > 0)
+ h->got.refcount -= 1;
+ }
+ else if (locals != NULL)
+ {
+ if (locals[r_symndx].got_refcount > 0)
+ locals[r_symndx].got_refcount -= 1;
+ }
+ break;
+
+ case R_AARCH64_ADR_PREL_PG_HI21_NC:
+ case R_AARCH64_ADR_PREL_PG_HI21:
+ case R_AARCH64_ADR_PREL_LO21:
+ if (h != NULL && info->executable)
+ {
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ }
+ break;
+
+ case R_AARCH64_CALL26:
+ case R_AARCH64_JUMP26:
+ /* If this is a local symbol then we resolve it
+ directly without creating a PLT entry. */
+ if (h == NULL)
+ continue;
+
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ break;
+
+ case R_AARCH64_ABS64:
+ if (h != NULL && info->executable)
+ {
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
return TRUE;
}
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;
+
+ /* PR15323, ref flags aren't set for references in the same
+ object. */
+ h->root.non_ir_ref = 1;
}
/* Could be done earlier, if h were already available. */
}
static enum elf_reloc_type_class
-elf64_aarch64_reloc_type_class (const Elf_Internal_Rela *rela)
+elf64_aarch64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ const asection *rel_sec ATTRIBUTE_UNUSED,
+ const Elf_Internal_Rela *rela)
{
switch ((int) ELF64_R_TYPE (rela->r_info))
{
elf64_aarch64_size_info
#define elf_backend_can_refcount 1
-#define elf_backend_can_gc_sections 0
+#define elf_backend_can_gc_sections 1
#define elf_backend_plt_readonly 1
#define elf_backend_want_got_plt 1
#define elf_backend_want_plt_sym 0
projects / deliverable / binutils-gdb.git / blobdiff