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[Libunwind-devel] Re: Backtrace from signal handler on arm from threads
From: |
Henrik Grindal Bakken |
Subject: |
[Libunwind-devel] Re: Backtrace from signal handler on arm from threads |
Date: |
Thu, 03 Feb 2011 09:56:31 +0100 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux) |
Lassi Tuura <address@hidden> writes:
> Hi,
>
>> I've read that thread, and it's very interesting. I did have the
>> same problems as Sven, but got around that by building glibc with
>> -g and shipping with a non-stripped library (actually, with a
>> stripped library, and a --add-gnu-debuglink to a debug-symbols-only
>> library as well). Now libunwind works like a charm, except in the
>> case of multi-threaded apps, which mine happens to be...
>
> Right, I just meant if you post the debug output as in that thread,
> then other people can help you diagnose the problems. I know
> relatively little about ARM but I do understand readelf output and
> libunwind debug output and can help with those sorts of issues.
Here we go:
The readelf output is at http://folk.uio.no/hgb/readelf.output.gz
GDB session: http://fpaste.org/jPwF/
It appears to SEGFAULT upon calling sigprocmask().
"UNW_DEBUG_LEVEL=1011 /tmp/backtrace" actually prints nothing. It
appears to segfault before libunwind manages to output anything at
all. If I run my program without creating threads, I get lots of
output. libunwind was built with --enable-debug and
--enable-debug-frame.
--
Henrik Grindal Bakken <address@hidden>
PGP ID: 8D436E52
Fingerprint: 131D 9590 F0CF 47EF 7963 02AF 9236 D25A 8D43 6E52
- [Libunwind-devel] Backtrace from signal handler on arm from threads, Henrik Grindal Bakken, 2011/02/01
- Re: [Libunwind-devel] Backtrace from signal handler on arm from threads, Lassi Tuura, 2011/02/02
- Message not available
- Re: [Libunwind-devel] Backtrace from signal handler on arm from threads, Lassi Tuura, 2011/02/03
- [Libunwind-devel] Re: Backtrace from signal handler on arm from threads,
Henrik Grindal Bakken <=
- Re: [Libunwind-devel] Re: Backtrace from signal handler on arm from threads, Lassi Tuura, 2011/02/03
- [Libunwind-devel] Re: Backtrace from signal handler on arm from threads, Henrik Grindal Bakken, 2011/02/03
- [Libunwind-devel] Re: Backtrace from signal handler on arm from threads, Henrik Grindal Bakken, 2011/02/03
- [Libunwind-devel] Re: Backtrace from signal handler on arm from threads, Henrik Grindal Bakken, 2011/02/03
- Re: [Libunwind-devel] Re: Backtrace from signal handler on arm from threads, Lassi Tuura, 2011/02/03
- Re: [Libunwind-devel] Re: Backtrace from signal handler on arm from threads, Lassi Tuura, 2011/02/03
- [Libunwind-devel] Re: Backtrace from signal handler on arm from threads, Henrik Grindal Bakken, 2011/02/03
- Re: [Libunwind-devel] Re: Backtrace from signal handler on arm from threads, Lassi Tuura, 2011/02/03
- Re: [Libunwind-devel] Re: Backtrace from signal handler on arm from threads, Paul Pluzhnikov, 2011/02/03
- [Libunwind-devel] Re: Backtrace from signal handler on arm from threads, Henrik Grindal Bakken, 2011/02/08