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[AArch64] PR18270, fix handling of GOT entry for local symbol
2015-04-24 Jiong. Wang <jiong.wang@arm.com> bfd/ PR ld/18270 * elfnn-aarch64.c (elfNN_aarch64_size_dynamic): Count local symbol for GOT_NORMAL for both sgot/srelgot section. (elfNN_aarch64_final_link_relocate): Relocate against GOT entry address and generate necessary runtime relocation for GOT entry.
This commit is contained in:
@ -1,3 +1,11 @@
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2015-04-24 Jiong Wang <jiong.wang@arm.com>
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PR ld/18270
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* elfnn-aarch64.c (elfNN_aarch64_size_dynamic): Count local symbol for
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GOT_NORMAL for both sgot/srelgot section.
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(elfNN_aarch64_final_link_relocate): Relocate against GOT entry address
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and generate necessary runtime relocation for GOT entry.
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2015-04-24 H.J. Lu <hongjiu.lu@intel.com>
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2015-04-24 H.J. Lu <hongjiu.lu@intel.com>
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PR binutils/18209
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PR binutils/18209
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@ -4447,10 +4447,11 @@ elfNN_aarch64_final_link_relocate (reloc_howto_type *howto,
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bfd_reloc_code_real_type new_bfd_r_type;
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bfd_reloc_code_real_type new_bfd_r_type;
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unsigned long r_symndx;
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unsigned long r_symndx;
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bfd_byte *hit_data = contents + rel->r_offset;
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bfd_byte *hit_data = contents + rel->r_offset;
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bfd_vma place;
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bfd_vma place, off;
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bfd_signed_vma signed_addend;
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bfd_signed_vma signed_addend;
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struct elf_aarch64_link_hash_table *globals;
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struct elf_aarch64_link_hash_table *globals;
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bfd_boolean weak_undef_p;
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bfd_boolean weak_undef_p;
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asection *base_got;
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globals = elf_aarch64_hash_table (info);
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globals = elf_aarch64_hash_table (info);
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@ -4490,8 +4491,6 @@ elfNN_aarch64_final_link_relocate (reloc_howto_type *howto,
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{
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{
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asection *plt;
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asection *plt;
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const char *name;
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const char *name;
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asection *base_got;
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bfd_vma off;
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if ((input_section->flags & SEC_ALLOC) == 0
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if ((input_section->flags & SEC_ALLOC) == 0
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|| h->plt.offset == (bfd_vma) -1)
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|| h->plt.offset == (bfd_vma) -1)
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@ -4866,6 +4865,58 @@ elfNN_aarch64_final_link_relocate (reloc_howto_type *howto,
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value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
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value = _bfd_aarch64_elf_resolve_relocation (bfd_r_type, place, value,
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0, weak_undef_p);
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0, weak_undef_p);
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}
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}
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else
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{
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struct elf_aarch64_local_symbol *locals
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= elf_aarch64_locals (input_bfd);
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if (locals == NULL)
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{
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int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
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(*_bfd_error_handler)
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(_("%B: Local symbol descriptor table be NULL when applying "
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"relocation %s against local symbol"),
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input_bfd, elfNN_aarch64_howto_table[howto_index].name);
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abort ();
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}
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off = symbol_got_offset (input_bfd, h, r_symndx);
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base_got = globals->root.sgot;
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bfd_vma got_entry_addr = (base_got->output_section->vma
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+ base_got->output_offset + off);
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if (!symbol_got_offset_mark_p (input_bfd, h, r_symndx))
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{
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bfd_put_64 (output_bfd, value, base_got->contents + off);
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if (info->shared)
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{
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asection *s;
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Elf_Internal_Rela outrel;
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/* For local symbol, we have done absolute relocation in static
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linking stageh. While for share library, we need to update
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the content of GOT entry according to the share objects
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loading base address. So we need to generate a
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R_AARCH64_RELATIVE reloc for dynamic linker. */
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s = globals->root.srelgot;
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if (s == NULL)
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abort ();
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outrel.r_offset = got_entry_addr;
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outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE));
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outrel.r_addend = value;
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elf_append_rela (output_bfd, s, &outrel);
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}
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symbol_got_offset_mark (input_bfd, h, r_symndx);
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}
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/* Update the relocation value to GOT entry addr as we have transformed
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the direct data access into indirect data access through GOT. */
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value = got_entry_addr;
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}
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break;
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break;
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case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
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case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
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@ -7521,7 +7572,8 @@ elfNN_aarch64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
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htab->root.sgot->size += GOT_ENTRY_SIZE * 2;
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htab->root.sgot->size += GOT_ENTRY_SIZE * 2;
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}
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}
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if (got_type & GOT_TLS_IE)
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if (got_type & GOT_TLS_IE
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|| got_type & GOT_NORMAL)
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{
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{
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locals[i].got_offset = htab->root.sgot->size;
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locals[i].got_offset = htab->root.sgot->size;
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htab->root.sgot->size += GOT_ENTRY_SIZE;
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htab->root.sgot->size += GOT_ENTRY_SIZE;
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@ -7531,10 +7583,6 @@ elfNN_aarch64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
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{
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{
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}
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}
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if (got_type == GOT_NORMAL)
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{
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}
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if (info->shared)
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if (info->shared)
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{
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{
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if (got_type & GOT_TLSDESC_GD)
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if (got_type & GOT_TLSDESC_GD)
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@ -7547,7 +7595,8 @@ elfNN_aarch64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
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if (got_type & GOT_TLS_GD)
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if (got_type & GOT_TLS_GD)
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htab->root.srelgot->size += RELOC_SIZE (htab) * 2;
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htab->root.srelgot->size += RELOC_SIZE (htab) * 2;
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if (got_type & GOT_TLS_IE)
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if (got_type & GOT_TLS_IE
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|| got_type & GOT_NORMAL)
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htab->root.srelgot->size += RELOC_SIZE (htab);
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htab->root.srelgot->size += RELOC_SIZE (htab);
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}
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}
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}
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}
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