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PR22048, Incorrect .eh_frame section in libc.so 

PR 21441
	PR 22048
	* elflink.c (bfd_elf_discard_info): Don't pad embedded zero
	terminators.
This commit is contained in:
Alan Modra 2017-08-31 12:48:37 +09:30
parent 3321e42bf2
commit af471f828c
2 changed files with 22 additions and 10 deletions
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7
bfd/ChangeLog
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@ -1,3 +1,10 @@
2017-08-31 Alan Modra <amodra@gmail.com>
PR 21441
PR 22048
* elflink.c (bfd_elf_discard_info): Don't pad embedded zero
terminators.
2017-08-30 H.J. Lu <hongjiu.lu@intel.com>
* configure.ac (bfd_backends): Add elf64.lo together with

25
bfd/elflink.c
View File

@ -13878,17 +13878,22 @@ bfd_elf_discard_info (bfd *output_bfd, struct bfd_link_info *info)
/* Any prior sections must pad the last FDE out to the
output section alignment. Otherwise we might have zero
padding between sections, which would be seen as a
terminator. */
terminator. If there is a terminator in the middle of
FDEs, don't increase its size as that will write bogus
data of whatever was after the terminator in the input
file, to the output file. */
for (; i != NULL; i = i->map_tail.s)
{
bfd_size_type size = (i->size + eh_alignment - 1) & -eh_alignment;
if (i->size != size)
{
i->size = size;
changed = 1;
eh_changed = 1;
}
}
if (i->size != 4)
{
bfd_size_type size
= (i->size + eh_alignment - 1) & -eh_alignment;
if (i->size != size)
{
i->size = size;
changed = 1;
eh_changed = 1;
}
}
}
if (eh_changed)
elf_link_hash_traverse (elf_hash_table (info),