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| author | Alan Modra <amodra@gmail.com> | 2019-08-24 09:59:03 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-08-24 10:05:40 +0930 |
| commit | 6d5554a605a8ce908ba04b00fd960d02ca9fc613 (patch) | |
| tree | eafe8ed9650c6a72b46e0f4ac5c0fcc395fc8147 /bfd/elf64-ppc.c | |
| parent | 8a9455cc824134d40943c34dc2cd44bee8275083 (diff) | |
| download | gdb-6d5554a605a8ce908ba04b00fd960d02ca9fc613.zip gdb-6d5554a605a8ce908ba04b00fd960d02ca9fc613.tar.gz gdb-6d5554a605a8ce908ba04b00fd960d02ca9fc613.tar.bz2 | |
PowerPC64 segfault in ppc64_elf_edit_toc
Found on a GOT reference to __ehdr_start, which is tweaked to be
undefined weak at some stages of linking. SYMBOL_REFERENCES_LOCAL
isn't a sufficient test.
* elf64-ppc.c (ppc64_elf_edit_toc): Exclude undefined weak
symbols from GOT optimisation.
Diffstat (limited to 'bfd/elf64-ppc.c')
| -rw-r--r-- | bfd/elf64-ppc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c index 60918d9..4eba829 100644 --- a/bfd/elf64-ppc.c +++ b/bfd/elf64-ppc.c @@ -9112,6 +9112,11 @@ ppc64_elf_edit_toc (struct bfd_link_info *info) r_symndx, ibfd)) goto got_error_ret; + if (sym_sec == NULL + || sym_sec->output_section == NULL + || discarded_section (sym_sec)) + continue; + if (!SYMBOL_REFERENCES_LOCAL (info, h)) continue; |