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PR ld/12253

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* elf-eh-frame.c (_bfd_elf_write_section_eh_frame): Correct
	DW_EH_PE_datarel handling.  Truncate .eh_frame_hdr address to
	ptr_size.
This commit is contained in:
Alan Modra
2010-11-23 23:30:04 +00:00
parent 80d3f67782
commit cd9e734e3f
2 changed files with 37 additions and 4 deletions
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7
bfd/ChangeLog
View File

@ -1,3 +1,10 @@
2010-11-24 Alan Modra <amodra@gmail.com>
PR ld/12253
* elf-eh-frame.c (_bfd_elf_write_section_eh_frame): Correct
DW_EH_PE_datarel handling. Truncate .eh_frame_hdr address to
ptr_size.
2010-11-23 Mingming Sun <mingm.sun@gmail.com>
* elfxx-mips.c (mips_set_isa_flags): Move bfd_mach_loongson_3a

34
bfd/elf-eh-frame.c
View File

@ -1572,10 +1572,31 @@ _bfd_elf_write_section_eh_frame (bfd *abfd,
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:
@ -1596,6 +1617,11 @@ _bfd_elf_write_section_eh_frame (bfd *abfd,
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