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Date: Mon, 01 Feb 2010 23:35:31 +0100
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-help] Xenomai 2.5.0: rt_task_shadow fails when
 libnative is statically linked.
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To: Henri Roosen <henriroosen@domain.hid>
Cc: xenomai@xenomai.org

Henri Roosen wrote:
> Hi all,
> 
> I get segmentation fault when calling rt_task_shadow. Actually
> somewhere in the pthread library called from sigshadow_install_once();
> 
> This only happens on Xenomai 2.5 when libnative is statically linked.
> Tested ok on 2.4.10 both dynamically and statically linked. I use
> kernel version 2.6.30.10, xenomai 2.5.0 on x86.
> 
> Any idea what is wrong?
> 
> Reproduced it with basic app that is attached to this email. Compiled with:
> gcc -D_GNU_SOURCE -D_REENTRANT -Wall -pipe -D__XENO__
> -I/usr/xenomai/include tst_basic.c -o tst_basic
> /usr/xenomai/lib/libnative.a -lpthread
> 
> Segfailt in dmesg on xenomai 2.5.0:
> tst_basic_2.5[1351]: segfault at 0 ip b7ff5a54 sp bfc9b46c error 4 in
> libpthread-2.9.so[b7feb000+13000]

Ok. Reproduced here. It looks like xeno_sigshadow_install and
xeno_sigshadow_installed have no address. I am on it.

-- 
					    Gilles.