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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: Fri, 12 Aug 2011 12:11:14 +0200 (CEST)	[thread overview]
Message-ID: <f804c0de687e35b2bcb517e971e77ab9.squirrel@domain.hid> (raw)
In-Reply-To: <4E44FBAA.1010301@domain.hid>


Daniele Nicolodi wrote:
> On 12/08/11 10:18, Daniele Nicolodi wrote:
>> On 12/08/11 01:18, Gilles Chanteperdrix wrote:
>>> The following patch seems to do the trick. It makes the assumption that
>>> when compiling with -fomit-frame-pointer, we have one more register, so
>>> the "R" constraint will always be able to avoid choosing eax, and eax
>>> will be free for the muxcode, so that the compiler will not choose the
>>> "m" alternative.
>>
>> It works, indeed. Thank you Gilles.
>
> I've spoken to early. The patch does not work for the posix skin.
> Posix skin services return "function not implemented" errors when
> xenomai user space is compiled with the patch and gcc-4.6, they work
> just fine when compiled with gcc-4.4 (without the patch).

Not really surprising. Then just compile with -fno-omit-frame-pointer.

-- 
                    Gilles.



  reply	other threads:[~2011-08-12 10:11 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 [this message]
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

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