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(elf_link_input_bfd): Handle the case where a badly formatted input file results

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in a reloc which has no associated global symbol
This commit is contained in:
Nick Clifton 2005-04-27 10:09:43 +00:00
parent f3429a74c5
commit 8c19749adc
2 changed files with 23 additions and 0 deletions
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6
bfd/ChangeLog
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@ -1,3 +1,9 @@
2005-04-27 Nick Clifton <nickc@redhat.com>
* elflink.c (elf_link_input_bfd): Handle the case where a badly
formatted input file results in a reloc which has no associated
global symbol.
2005-04-26 Jerome Guitton <guitton@gnat.com>
* bfd.m4 (BFD_NEED_DECLARATION): Restore.

17
bfd/elflink.c
View File

@ -7019,6 +7019,23 @@ elf_link_input_bfd (struct elf_final_link_info *finfo, bfd *input_bfd)
&& finfo->sections[r_symndx] == NULL))
{
h = sym_hashes[r_symndx - extsymoff];
/* Badly formatted input files can contain relocs that
reference non-existant symbols. Check here so that
we do not seg fault. */
if (h == NULL)
{
char buffer [32];
sprintf_vma (buffer, rel->r_info);
(*_bfd_error_handler)
(_("error: %B contains a reloc (0x%s) for section %A "
"that references a non-existent global symbol"),
input_bfd, o, buffer);
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;