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Diffstat (limited to 'bfd/elf64-x86-64.c')
-rw-r--r--bfd/elf64-x86-64.c175
1 files changed, 81 insertions, 94 deletions
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c
index a3c36ff67dc..f13b4d2207c 100644
--- a/bfd/elf64-x86-64.c
+++ b/bfd/elf64-x86-64.c
@@ -1,22 +1,22 @@
/* X86-64 specific support for 64-bit ELF
- Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
+ Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
Contributed by Jan Hubicka <jh@suse.cz>.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
@@ -1091,9 +1091,6 @@ elf64_x86_64_gc_sweep_hook (abfd, info, sec, relocs)
struct elf_link_hash_entry **sym_hashes;
bfd_signed_vma *local_got_refcounts;
const Elf_Internal_Rela *rel, *relend;
- unsigned long r_symndx;
- int r_type;
- struct elf_link_hash_entry *h;
elf_section_data (sec)->local_dynrel = NULL;
@@ -1103,85 +1100,79 @@ elf64_x86_64_gc_sweep_hook (abfd, info, sec, relocs)
relend = relocs + sec->reloc_count;
for (rel = relocs; rel < relend; rel++)
- switch ((r_type = elf64_x86_64_tls_transition (info,
- ELF64_R_TYPE (rel->r_info),
- ELF64_R_SYM (rel->r_info)
- >= symtab_hdr->sh_info)))
- {
- case R_X86_64_TLSLD:
- if (elf64_x86_64_hash_table (info)->tls_ld_got.refcount > 0)
- elf64_x86_64_hash_table (info)->tls_ld_got.refcount -= 1;
- break;
-
- case R_X86_64_TLSGD:
- case R_X86_64_GOTTPOFF:
- case R_X86_64_GOT32:
- case R_X86_64_GOTPCREL:
- r_symndx = ELF64_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- if (h->got.refcount > 0)
- h->got.refcount -= 1;
- }
- else if (local_got_refcounts != NULL)
- {
- if (local_got_refcounts[r_symndx] > 0)
- local_got_refcounts[r_symndx] -= 1;
- }
- break;
+ {
+ unsigned long r_symndx;
+ unsigned int r_type;
+ struct elf_link_hash_entry *h = NULL;
- case R_X86_64_8:
- case R_X86_64_16:
- case R_X86_64_32:
- case R_X86_64_64:
- case R_X86_64_32S:
- case R_X86_64_PC8:
- case R_X86_64_PC16:
- case R_X86_64_PC32:
- r_symndx = ELF64_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- struct elf64_x86_64_link_hash_entry *eh;
- struct elf64_x86_64_dyn_relocs **pp;
- struct elf64_x86_64_dyn_relocs *p;
+ r_symndx = ELF64_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ struct elf64_x86_64_link_hash_entry *eh;
+ struct elf64_x86_64_dyn_relocs **pp;
+ struct elf64_x86_64_dyn_relocs *p;
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ eh = (struct elf64_x86_64_link_hash_entry *) h;
- if (!info->shared && h->plt.refcount > 0)
- h->plt.refcount -= 1;
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
+ if (p->sec == sec)
+ {
+ /* Everything must go for SEC. */
+ *pp = p->next;
+ break;
+ }
+ }
- eh = (struct elf64_x86_64_link_hash_entry *) h;
+ r_type = ELF64_R_TYPE (rel->r_info);
+ r_type = elf64_x86_64_tls_transition (info, r_type, h != NULL);
+ switch (r_type)
+ {
+ case R_X86_64_TLSLD:
+ if (elf64_x86_64_hash_table (info)->tls_ld_got.refcount > 0)
+ elf64_x86_64_hash_table (info)->tls_ld_got.refcount -= 1;
+ break;
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
- if (p->sec == sec)
- {
- if (ELF64_R_TYPE (rel->r_info) == R_X86_64_PC8
- || ELF64_R_TYPE (rel->r_info) == R_X86_64_PC16
- || ELF64_R_TYPE (rel->r_info) == R_X86_64_PC32)
- p->pc_count -= 1;
- p->count -= 1;
- if (p->count == 0)
- *pp = p->next;
- break;
- }
- }
- break;
+ case R_X86_64_TLSGD:
+ case R_X86_64_GOTTPOFF:
+ case R_X86_64_GOT32:
+ case R_X86_64_GOTPCREL:
+ if (h != NULL)
+ {
+ if (h->got.refcount > 0)
+ h->got.refcount -= 1;
+ }
+ else if (local_got_refcounts != NULL)
+ {
+ if (local_got_refcounts[r_symndx] > 0)
+ local_got_refcounts[r_symndx] -= 1;
+ }
+ break;
+ case R_X86_64_8:
+ case R_X86_64_16:
+ case R_X86_64_32:
+ case R_X86_64_64:
+ case R_X86_64_32S:
+ case R_X86_64_PC8:
+ case R_X86_64_PC16:
+ case R_X86_64_PC32:
+ if (info->shared)
+ break;
+ /* Fall thru */
- case R_X86_64_PLT32:
- r_symndx = ELF64_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- if (h->plt.refcount > 0)
- h->plt.refcount -= 1;
- }
- break;
+ case R_X86_64_PLT32:
+ if (h != NULL)
+ {
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ }
+ break;
- default:
- break;
- }
+ default:
+ break;
+ }
+ }
return TRUE;
}
@@ -1921,7 +1912,6 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section,
else if (h->root.type == bfd_link_hash_undefweak)
relocation = 0;
else if (info->shared
- && (!info->symbolic || info->allow_shlib_undefined)
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
relocation = 0;
@@ -2106,7 +2096,6 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section,
/* When generating a shared object, these relocations
are copied into the output file to be resolved at run
time. */
-
skip = FALSE;
relocate = FALSE;
@@ -2330,7 +2319,7 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section,
if ((off & 1) != 0)
off &= ~1;
- else
+ else
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
@@ -2408,12 +2397,12 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section,
addq foo@gottpoff(%rip), %rax */
BFD_ASSERT (rel->r_offset >= 4);
for (i = 0; i < 4; i++)
- BFD_ASSERT (bfd_get_8 (input_bfd,
+ BFD_ASSERT (bfd_get_8 (input_bfd,
contents + rel->r_offset - 4 + i)
== tlsgd[i]);
BFD_ASSERT (rel->r_offset + 12 <= input_section->_raw_size);
for (i = 0; i < 4; i++)
- BFD_ASSERT (bfd_get_8 (input_bfd,
+ BFD_ASSERT (bfd_get_8 (input_bfd,
contents + rel->r_offset + 4 + i)
== tlsgd[i+4]);
BFD_ASSERT (rel + 1 < relend);
@@ -2592,7 +2581,6 @@ elf64_x86_64_finish_dynamic_symbol (output_bfd, info, h, sym)
/* This symbol has an entry in the procedure linkage table. Set
it up. */
-
if (h->dynindx == -1
|| htab->splt == NULL
|| htab->sgotplt == NULL
@@ -2671,7 +2659,6 @@ elf64_x86_64_finish_dynamic_symbol (output_bfd, info, h, sym)
/* This symbol has an entry in the global offset table. Set it
up. */
-
if (htab->sgot == NULL || htab->srelgot == NULL)
abort ();
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