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PowerPC64 segfault in ppc64_elf_edit_toc

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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.
This commit is contained in:
Alan Modra
2019-08-24 09:59:03 +09:30
parent 8a9455cc82
commit 6d5554a605
2 changed files with 10 additions and 0 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2019-08-24 Alan Modra <amodra@gmail.com>
* elf64-ppc.c (ppc64_elf_edit_toc): Exclude undefined weak
symbols from GOT optimisation.
2019-08-23 Stafford Horne <shorne@gmail.com> 2019-08-23 Stafford Horne <shorne@gmail.com>
* elf32-or1k.c (or1k_elf_finish_dynamic_symbol): Use correct value for * elf32-or1k.c (or1k_elf_finish_dynamic_symbol): Use correct value for

5
bfd/elf64-ppc.c
View File

@ -9112,6 +9112,11 @@ ppc64_elf_edit_toc (struct bfd_link_info *info)
r_symndx, ibfd)) r_symndx, ibfd))
goto got_error_ret; goto got_error_ret;
if (sym_sec == NULL
|| sym_sec->output_section == NULL
|| discarded_section (sym_sec))
continue;
if (!SYMBOL_REFERENCES_LOCAL (info, h)) if (!SYMBOL_REFERENCES_LOCAL (info, h))
continue; continue;