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From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Daniele Nicolodi <daniele@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-core] gcc-4.6 issue
Date: Thu, 11 Aug 2011 22:09:54 +0200	[thread overview]
Message-ID: <4E443712.3060609@domain.hid> (raw)
In-Reply-To: <4E4422B3.6090101@domain.hid>

On 08/11/2011 08:42 PM, Daniele Nicolodi wrote:
> On 11/08/11 19:22, Gilles Chanteperdrix wrote:
> 
>> Please try and find the point in the latency test where the hang happens
>> (it probably happens when calling a xenomai service, so, not
>> sched_setscheduler), and then post the two disassemblies of this service
>> implementation in libnative.so, the one compiled with 4.4, the other
>> with 4.6.
> 
> The latency test hangs in rt_task_create() attached the function
> disassemblies obtained with gcc-4.4 and gcc-4.6. Hope that this helps,
> those are Aramaic to me.

The gcc 4.6 version is compiled with frame pointer disabled, whereas the
4.4 version is compiled with frame pointers. Enabling the
-fomit-frame-pointer option with gcc 4.4 seems to cause issues as well.

Could you test passing -fno-omit-frame-pointers in the CFLAGS with gcc
4.6 to see if it avoids the issue?

Regards.

-- 
                                                                Gilles.


      reply	other threads:[~2011-08-11 20:09 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-11 10:59 [Xenomai-core] gcc-4.6 issue Roland Stigge
2011-08-11 11:07 ` Gilles Chanteperdrix
2011-08-11 11:43   ` Daniele Nicolodi
2011-08-11 14:48     ` Daniele Nicolodi
2011-08-11 17:21       ` Roland Stigge
2011-08-11 17:31         ` Gilles Chanteperdrix
2011-08-11 19:34           ` Gilles Chanteperdrix
2011-08-11 20:52           ` Gilles Chanteperdrix
2011-08-11 23:18             ` Gilles Chanteperdrix
2011-08-12  8:18               ` Daniele Nicolodi
2011-08-12  8:46                 ` Gilles Chanteperdrix
2011-08-12 10:08                 ` Daniele Nicolodi
2011-08-12 10:11                   ` Gilles Chanteperdrix
2011-08-12  8:20               ` [Xenomai-core] Bug#637425: " Roland Stigge
2011-08-11 17:22       ` [Xenomai-core] " Gilles Chanteperdrix
2011-08-11 18:42         ` Daniele Nicolodi
2011-08-11 20:09           ` Gilles Chanteperdrix [this message]

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