From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4E2EAE69.7030008@domain.hid> Date: Tue, 26 Jul 2011 14:09:13 +0200 From: Daniele Nicolodi MIME-Version: 1.0 References: <4E16296B.4080209@domain.hid> <4E1B4438.6030600@domain.hid> In-Reply-To: <4E1B4438.6030600@domain.hid> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-core] Problems with gcc 4.6.0 (rt_task_shadow fails with ENOSYS) List-Id: Xenomai life and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: xenomai@xenomai.org On 11/07/11 20:43, Gilles Chanteperdrix wrote: > On 07/07/2011 11:47 PM, Anders Blomdell wrote: >> When compiling kernel 2.6.37.3 and xenomai 2.5.6 with "gcc version 4.6.0 >> 20110530 (Red Hat 4.6.0-9) (GCC)", programs fail with -ENOSYS in >> rt_task_shadow. If compiled with "gcc version 4.5.1 20100924 (Red Hat >> 4.5.1-4) (GCC)" everything works as expected. > > I think it is due to the modifications of syscall.h I made to implement > pseudo-signals handling, which implementation was never finished, and > removed in xenomai-head. Could you try xenomai-head to see if you get > the failure? I tried backporting it, but the code evolved too much in > both repositories, the backport needs to spend some time on it, so, I > would like to know whether it is really needed. Has this issue been investigated further? I may have the occasion to try again to compile a Xenomai kernel with gcc 4.6 this week and I would like to know where to start to debug and solve this issue. Thank you. Cheers, -- Daniele