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| author | Alan Modra <amodra@gmail.com> | 2017-10-30 10:20:29 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2017-10-30 11:03:50 +1030 |
| commit | 81742b83e9f25895eaaf3a07ac1651a4e9a68251 (patch) | |
| tree | ce6ef2cdab6327ca8f8a795454c4d37f08a00579 | |
| parent | d336fa6d820f50235c271ea327fadbf4ff6e1edd (diff) | |
| download | gdb-81742b83e9f25895eaaf3a07ac1651a4e9a68251.zip gdb-81742b83e9f25895eaaf3a07ac1651a4e9a68251.tar.gz gdb-81742b83e9f25895eaaf3a07ac1651a4e9a68251.tar.bz2 | |
relocs_compatible test for gc-sections
I noticed when looking at pr22300 that before calling check_relocs we
have an elf_object_id test (added for pr11933) as well as the
relocs_compatible test. I believe backend gc_mark_hook and
gc_sweep_hook ought to be protected similarly from being confused by
unexpected relocations (for example, both elf64-ppc.c and elf32-ppc.c
use _bfd_elf_relocs_compatible, so I think it would be possible for
the ppc64 gc_mark_hook to be presented with a ppc32 relocatable
object).
* elflink.c (elf_gc_sweep): Test elf_object_id in addition to
relocs_compatible.
(bfd_elf_gc_sections): Likewise.
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/elflink.c | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index c56e1cf..7cf5b32 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,11 @@ 2017-10-30 Alan Modra <amodra@gmail.com> + * elflink.c (elf_gc_sweep): Test elf_object_id in addition to + relocs_compatible. + (bfd_elf_gc_sections): Likewise. + +2017-10-30 Alan Modra <amodra@gmail.com> + PR 22269 * elf32-hppa.c (elf32_hppa_check_relocs): Move SEC_ALLOC test to ensure non_got_ref is not set due to debug references. diff --git a/bfd/elflink.c b/bfd/elflink.c index 9f2d63b..122549c 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -13034,6 +13034,7 @@ elf_gc_sweep (bfd *abfd, struct bfd_link_info *info) asection *o; if (bfd_get_flavour (sub) != bfd_target_elf_flavour + || elf_object_id (sub) != elf_hash_table_id (elf_hash_table (info)) || !(*bed->relocs_compatible) (sub->xvec, abfd->xvec)) continue; o = sub->sections; @@ -13335,6 +13336,7 @@ bfd_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) asection *o; if (bfd_get_flavour (sub) != bfd_target_elf_flavour + || elf_object_id (sub) != elf_hash_table_id (htab) || !(*bed->relocs_compatible) (sub->xvec, abfd->xvec)) continue; |