From: Philippe Gerum <rpm@xenomai.org>
To: Bukuli Norbert <norbert.bukuli@mediso.hu>
Cc: Xenomai <xenomai@xenomai.org>
Subject: Re: [Xenomai] test suite programs crash with Illegal instruction on MPC5200
Date: Mon, 02 Dec 2013 10:41:48 +0100 [thread overview]
Message-ID: <529C55DC.3080803@xenomai.org> (raw)
In-Reply-To: <20131202102455.4a81b5b6.norbert.bukuli@mediso.hu>
On 12/02/2013 10:24 AM, Bukuli Norbert wrote:
>
>
> On Mon, 2 Dec 2013 10:15:22 +0100
> Philippe Gerum <rpm@xenomai.org> wrote:
>> On 12/02/2013 09:50 AM, Bukuli Norbert wrote:
>>
>>> Program received signal SIGILL, Illegal instruction.
>>> [Switching to Thread 338]
>>> 0x4800ce74 in ?? ()
>>>
>>> (gdb) bt
>>> #0 0x4800ce74 in ?? ()
>>> #1 0x0ff98534 in ?? ()
>>> #2 0x0fe17a68 in ?? ()
>>> #3 0x480eba4c in ?? ()
>>>
>>> (gdb) info sharedlibrary
>>> From To Syms Read Shared Object Library
>>> 0x00001ff0 0x0001b014
>>> Yes /opt/eldk-5.4/powerpc/sysroots/powerpc-linux/lib/ld.so.1
>>> 0x00100360 0x00100648
>>> No /srv/tftpboot/172.31.2.11/lib/modules/3.8.13/vdso/linux-vdso32.so.1
>>> 0x0ff979b4 0x0ff9e948
>>> No /opt/eldk-5.4/powerpc/sysroots/powerpc-linux/usr/xenomai/lib/libpthread_rt.so.1
>>
>> For some reason, it looks like the program flow jumps to a weird
>> location. Assuming this backtrace is right, the last location that
>> would make sense seems to be frame #1 at 0x0ff98534 in
>> libpthread_rt.so.1, which is Xenomai's POSIX interface library.
>>
>> - could you please make a full disassembly of libpthread_rt.so.1
>> accessible via pastebin?
>
> Of course. You can find the output of
> $ powerpc-linux-objdump -d libpthread_rt.so.1
> here:
> http://pastebin.com/uywTZGfg
>
Ok, thanks. I will have a look.
>>
>> - we already had these kinds of events a couple of times on different
>> architectures with new gcc releases due to, either broken TLS code
>> generation by gcc, or some weaknesses in our inline syscall
>> trampoline code with respect to expressing constraints. Is
>> --with-__thread enabled when configuring the Xenomai build for
>> libaries and programs?
>>
> Unfortunatelly I do not know exactly. The stock ELDK-5.4 version of
> libpthread_rt.so.1 is used. I will check it up.
>
Please don't bother. From the disassembly you just sent, TLS support is
not used (--with-__thread disabled).
--
Philippe.
next prev parent reply other threads:[~2013-12-02 9:41 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-28 13:31 [Xenomai] test suite programs crash with Illegal instruction on MPC5200 Bukuli Norbert
2013-11-28 20:17 ` Gilles Chanteperdrix
2013-11-28 20:30 ` Gilles Chanteperdrix
2013-11-29 7:59 ` Bukuli Norbert
2013-11-29 7:45 ` Bukuli Norbert
2013-11-28 22:01 ` Philippe Gerum
2013-11-29 8:41 ` Bukuli Norbert
2013-11-29 8:41 ` Bukuli Norbert
2013-11-29 9:29 ` Philippe Gerum
2013-11-29 9:34 ` Philippe Gerum
2013-11-29 10:44 ` Bukuli Norbert
2013-11-29 10:27 ` Bukuli Norbert
2013-11-29 15:33 ` Philippe Gerum
2013-12-02 7:50 ` Bukuli Norbert
2013-11-29 22:53 ` Wolfgang Denk
2013-12-02 8:50 ` Bukuli Norbert
2013-12-02 9:15 ` Philippe Gerum
2013-12-02 9:24 ` Bukuli Norbert
2013-12-02 9:41 ` Philippe Gerum [this message]
2013-12-02 9:44 ` Bukuli Norbert
2013-12-02 9:58 ` Philippe Gerum
2013-12-02 10:16 ` Bukuli Norbert
2013-12-09 14:52 ` Bukuli Norbert
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