/* .eh_frame section optimization.
- Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Written by Jakub Jelinek <jakub@redhat.com>.
REQUIRE (read_byte (&buf, end, &cie->version));
/* Cannot handle unknown versions. */
- REQUIRE (cie->version == 1 || cie->version == 3);
+ REQUIRE (cie->version == 1
+ || cie->version == 3
+ || cie->version == 4);
REQUIRE (strlen ((char *) buf) < sizeof (cie->augmentation));
strcpy (cie->augmentation, (char *) buf);
REQUIRE (skip_bytes (&buf, end, ptr_size));
SKIP_RELOCS (buf);
}
+ if (cie->version >= 4)
+ {
+ REQUIRE (buf + 1 < end);
+ REQUIRE (buf[0] == ptr_size);
+ REQUIRE (buf[1] == 0);
+ buf += 2;
+ }
REQUIRE (read_uleb128 (&buf, end, &cie->code_align));
REQUIRE (read_sleb128 (&buf, end, &cie->data_align));
if (cie->version == 1)
bfd_vma
_bfd_elf_eh_frame_section_offset (bfd *output_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
asection *sec,
bfd_vma offset)
{
struct eh_frame_sec_info *sec_info;
- struct elf_link_hash_table *htab;
- struct eh_frame_hdr_info *hdr_info;
unsigned int lo, hi, mid;
if (sec->sec_info_type != ELF_INFO_TYPE_EH_FRAME)
if (offset >= sec->rawsize)
return offset - sec->rawsize + sec->size;
- htab = elf_hash_table (info);
- hdr_info = &htab->eh_info;
-
lo = 0;
hi = sec_info->count;
mid = 0;
break;
case 'P':
if (ent->u.cie.make_per_encoding_relative)
- *buf |= DW_EH_PE_pcrel;
+ *buf = make_pc_relative (*buf, ptr_size);
per_encoding = *buf++;
per_width = get_DW_EH_PE_width (per_encoding, ptr_size);
BFD_ASSERT (per_width != 0);
break;
case DW_EH_PE_datarel:
{
- asection *got = bfd_get_section_by_name (abfd, ".got");
-
- BFD_ASSERT (got != NULL);
- address += got->vma;
+ switch (abfd->arch_info->arch)
+ {
+ case bfd_arch_ia64:
+ BFD_ASSERT (elf_gp (abfd) != 0);
+ address += elf_gp (abfd);
+ break;
+ default:
+ (*info->callbacks->einfo)
+ (_("%P: DW_EH_PE_datarel unspecified"
+ " for this architecture.\n"));
+ /* Fall thru */
+ case bfd_arch_frv:
+ case bfd_arch_i386:
+ BFD_ASSERT (htab->hgot != NULL
+ && ((htab->hgot->root.type
+ == bfd_link_hash_defined)
+ || (htab->hgot->root.type
+ == bfd_link_hash_defweak)));
+ address
+ += (htab->hgot->root.u.def.value
+ + htab->hgot->root.u.def.section->output_offset
+ + (htab->hgot->root.u.def.section->output_section
+ ->vma));
+ break;
+ }
}
break;
case DW_EH_PE_pcrel:
if (hdr_info)
{
+ /* The address calculation may overflow, giving us a
+ value greater than 4G on a 32-bit target when
+ dwarf_vma is 64-bit. */
+ if (sizeof (address) > 4 && ptr_size == 4)
+ address &= 0xffffffff;
hdr_info->array[hdr_info->array_count].initial_loc = address;
hdr_info->array[hdr_info->array_count++].fde
= (sec->output_section->vma
if (ent->set_loc)
{
/* Adjust DW_CFA_set_loc. */
- unsigned int cnt, width;
+ unsigned int cnt;
bfd_vma new_offset;
width = get_DW_EH_PE_width (ent->fde_encoding, ptr_size);
for (cnt = 1; cnt <= ent->set_loc[0]; cnt++)
{
- bfd_vma value;
buf = start + ent->set_loc[cnt];
value = read_value (abfd, buf, width,