From: Simon Marchi <simon.marchi@polymtl.ca>
To: Tom Tromey <tom@tromey.com>
Cc: Jordan Rupprecht <rupprecht@google.com>,
gdb-patches@sourceware.org,
Eric Christopher <echristo@gmail.com>,
David Blaikie <dblaikie@gmail.com>,
dje@google.com
Subject: Re: [PATCH] [dwarf2read] Fix crash when loading dwp files: calculate num_sections based on actual section indices, not just the number of sections.
Date: Wed, 27 Feb 2019 04:41:00 -0000 [thread overview]
Message-ID: <e7e6bb66ad8fa122de9c73f744b5c8e9@polymtl.ca> (raw)
In-Reply-To: <fb2a135bd1e57e0bd5c66f51ce8a4341@polymtl.ca>
On 2019-02-26 11:24, Simon Marchi wrote:
> On 2019-02-26 10:08, Tom Tromey wrote:
>>>>>>> "Simon" == Simon Marchi <simon.marchi@polymtl.ca> writes:
>>
>>>> - dwp_file->num_sections = bfd_count_sections (dwp_file->dbfd) + 1;
>>>> + dwp_file->num_sections = elf_numsections (dwp_file->dbfd);
>>
>> Simon> I have tweaked the original commit message a bit and pushed.
>> Simon> Thanks again for the patch.
>>
>> I wonder if there's any way to reach this with a non-ELF objfile --
>> Mach-O seems probable. I think we also handle DWARF on AIX (ECOFF
>> IIRC)
>> but I don't know if that does dwp.
>
> Oh, maybe. Unfortunately, I don't have access to a Mac to test this
> at the moment.
>
> I'll give it a try on gcc119.fsffrance.org for AIX.
>
> Simon
So my impression now is that dwp doesn't apply to non-ELF projects. It
is built as part of gold, which itself deals only with ELF, AFAIK. I
tried to build gold on AIX, without success.
Simon
next prev parent reply other threads:[~2019-02-27 4:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-23 0:54 Jordan Rupprecht via gdb-patches
2019-02-24 4:01 ` Simon Marchi
2019-02-25 20:17 ` Jordan Rupprecht via gdb-patches
2019-02-25 20:21 ` Simon Marchi
2019-02-25 20:21 ` Jordan Rupprecht via gdb-patches
2019-02-25 20:55 ` Simon Marchi
2019-02-25 21:22 ` Jordan Rupprecht via gdb-patches
2019-02-26 15:08 ` Tom Tromey
2019-02-26 16:24 ` Simon Marchi
2019-02-27 4:41 ` Simon Marchi [this message]
2019-02-27 17:22 ` Tom Tromey
2019-02-27 17:40 ` Simon Marchi
2019-02-27 17:56 ` Eric Christopher
2019-02-27 18:06 ` Adrian Prantl
2019-02-27 18:13 ` Simon Marchi
2019-02-27 19:33 ` David Blaikie
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