From: Daniel Jacobowitz <drow@false.org>
To: Thinker Li <thinker@branda.to>
Cc: gdb-patches@sourceware.org
Subject: Re: Get backtrace at PLT and stepi into PLT
Date: Mon, 20 Jul 2009 13:15:00 -0000 [thread overview]
Message-ID: <20090720120722.GA28313@caradoc.them.org> (raw)
In-Reply-To: <19044.7794.607077.330791@bibi.branda.to>
On Mon, Jul 20, 2009 at 03:36:18PM +0800, Thinker Li wrote:
> And, as what you had said, there are a lot of ABI-defined mapping symbols
> ($a, $t) in symbol tables of shared objects. But, they are generated
> only for .text but .plt section. So, it got nothing to try to issue
> a backtrace command when the inferior is stopped at .plt section.
>
> Is GNU ld supposed to generate ABI-defined mapping symbols for
> .plt? Or, does GDB need to do more work on this issue?
Mapping symbols are used for other things, like setting breakpoints,
but not for backtrace. What's the actual problem with backtracing?
Current versions of GNU ld do generate correct mapping symbols for the
PLT. Some earlier versions didn't, though.
--
Daniel Jacobowitz
CodeSourcery
next prev parent reply other threads:[~2009-07-20 12:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-17 8:48 Thinker Li
2009-07-17 14:26 ` Daniel Jacobowitz
[not found] ` <19040.34533.656545.753721@bibi.branda.to>
2009-07-17 15:07 ` Daniel Jacobowitz
[not found] ` <19044.7794.607077.330791@bibi.branda.to>
2009-07-20 13:15 ` Daniel Jacobowitz [this message]
2009-07-21 15:12 ` Thinker Li
2009-07-21 18:15 ` Daniel Jacobowitz
2009-07-22 12:12 ` Thinker Li
2009-07-22 15:49 ` Daniel Jacobowitz
-- strict thread matches above, loose matches on Subject: below --
2009-07-16 19:07 User Thinker
2009-07-16 19:11 ` Daniel Jacobowitz
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