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From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Robert Haschke <rhaschke@techfak.uni-bielefeld.de>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] rtdm_driver.h fails to build: implicit declaration of smp_mb__before_atomic_dec()
Date: Wed, 20 May 2015 02:13:22 +0200	[thread overview]
Message-ID: <20150520001322.GI10686@hermes.click-hack.org> (raw)
In-Reply-To: <555BA2F4.4030106@techfak.uni-bielefeld.de>

On Tue, May 19, 2015 at 10:54:12PM +0200, Robert Haschke wrote:
> I'm trying to build Xenomai 2.6.4 on linux 3.18.13 with i-pipe patch for
> 3.18.12.
> When enabling RTDM support, the compiler throws the following error:
> 
> In file included from ../kernel/xenomai/skins/posix/syscall.c:40:0:
> ../include/xenomai/rtdm/rtdm_driver.h: In function ‘rtdm_context_unlock’:
> ../include/xenomai/rtdm/rtdm_driver.h:587:2: error: implicit declaration of
> function ‘smp_mb__before_atomic_dec’ [-Werror=implicit-function-declaration]
>   smp_mb__before_atomic_dec();
>   ^
> cc1: some warnings being treated as errors

That question again.

Xenomai developers do not have access to a crystal ball or to an
IPOT network. Thus, a released version of Xenomai only supports the
I-pipe patches which were released prior to its release. For this
reason, Xenomai 2.6.4 does not support Linux kernel versions more
recent than 3.14. For more recent releases, use the git repository.


> 
> This function became deprecated in kernel 3.16 and was removed in 3.18.

Ah, maybe this explain this commit then:

https://git.xenomai.org/xenomai-2.6.git/commit/?id=d7f7e99ea19eb0dc13b1e02e633ec53ac9b89475


-- 
					    Gilles.


  reply	other threads:[~2015-05-20  0:13 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-19 20:54 [Xenomai] rtdm_driver.h fails to build: implicit declaration of smp_mb__before_atomic_dec() Robert Haschke
2015-05-20  0:13 ` Gilles Chanteperdrix [this message]
2015-05-20 14:37   ` Lennart Sorensen

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