[patchv2] PR gdb/17968 - [ppc64] SEGV in ppc64_elf_get_synthetic_symtab reading a separate debug file

[Martin Sebor]

On 02/25/2015 02:04 PM, Jan Kratochvil wrote:
> Hi Martin,
>
> [ppc64] SEGV in ppc64_elf_get_synthetic_symtab reading a separate debug file
> https://sourceware.org/bugzilla/show_bug.cgi?id=17968
>
> Martin Sebor 2015-02-16 00:42:58 CET
> # The problem appears to be due to the change to gdb/elfread.c introduced in the commit below:
> # # commit 63524580f8372e38a6a62fd875a4252068c31150
> # # Author: Jan Kratochvil <jan.kratochvil@redhat.com>
> # # Date:   Sun Apr 17 18:38:46 2011 +0000
> # #     gdb/
> # #         Fix convert_code_addr_to_desc_addr for ppc64 files after eu-strip.
> # #         * elfread.c (elf_symfile_read): New variable synth_abfd, pass it to
> # #         bfd_get_synthetic_symtab.
>
> https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=63524580f8372e38a6a62fd875a4252068c31150
>
> I find the patch of mine above right even for object files and your patch only
> avoided hitting the stale memory reference by disabling proper .opd parsing.

I admit I suspected that my fix only worked around the problem
without removing the root cause. Glad to know you found a more
appropriate solution.

Martin