From: Philippe Gerum <rpm@xenomai.org>
To: Glen Wernersbach <glen@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] Linux Serial Does not work with CONFIG_XENO_OPT_PERVASIVE enabled
Date: Tue, 20 Mar 2012 14:44:58 +0100 [thread overview]
Message-ID: <4F6889DA.1070007@domain.hid> (raw)
In-Reply-To: <CB8DFE21.1EE1B%glen@domain.hid>
On 03/20/2012 02:28 PM, Glen Wernersbach wrote:
> Hi All,
>
> I install Xenomai 2.6.0 on AT91SAM9G20 system and have found that when
> CONFIG_XENO_OPT_PERVASIVE is enabled my standard non real time linux
> serial write then read serial program does not work.
>
> If I turn off CONFIG_XENO_OPT_PERVASIVE, my serial program does work.
>
> Any ideas why?????
>
A possible explanation would be that your application links with the
Xenomai POSIX lib (libpthread_rt), albeit it should not.
With pervasive support disabled, any routing from the overloaded POSIX
I/O calls to the Xenomai kernel would then fail.
If so, you should not link against the Xenomai libs if you need no -rt
service, or prevent symbol wrapping only for the POSIX I/O calls by
prefixing them by __real_* if you want Xenomai-enabled POSIX services
except the I/O support.
See http://xenomai.org/index.php/Porting_POSIX_applications_to_Xenomai
>
> Also, when you turn CONFIG_XENO_OPT_PERVASIVE you get this error:
> CC kernel/xenomai/nucleus/synch.o
> kernel/xenomai/nucleus/synch.c: In function 'xnsynch_release_thread':
> kernel/xenomai/nucleus/synch.c:688:3: error: implicit declaration of
> function 'xnthread_get_rescnt'
> kernel/xenomai/nucleus/synch.c:689:4: error: implicit declaration of
> function 'xnshadow_send_sig'
>
> I had to go in and make the code for that option befor it always false.
>
http://git.xenomai.org/?p=xenomai-2.6.git;a=commit;h=41b4f9c0f4bdf06107a788b762b5cf662b1d4108
> Glen
> --
> Glen Wernersbach
> President & CTO
>
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--
Philippe.
next prev parent reply other threads:[~2012-03-20 13:44 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-20 13:28 [Xenomai-help] Linux Serial Does not work with CONFIG_XENO_OPT_PERVASIVE enabled Glen Wernersbach
2012-03-20 13:44 ` Philippe Gerum [this message]
2012-03-20 13:48 ` Glen Wernersbach
2012-03-20 13:57 ` Philippe Gerum
2012-03-20 14:07 ` Glen Wernersbach
2012-03-20 14:14 ` Philippe Gerum
2012-03-20 14:17 ` Philippe Gerum
2012-03-20 14:31 ` Philippe Gerum
2012-03-20 14:34 ` Glen Wernersbach
2012-03-20 14:47 ` Philippe Gerum
2012-03-20 14:53 ` Glen Wernersbach
2012-03-20 15:06 ` Philippe Gerum
2012-03-20 15:17 ` Glen Wernersbach
2012-03-20 15:24 ` Gilles Chanteperdrix
2012-03-20 15:27 ` Philippe Gerum
2012-03-20 16:09 ` Glen Wernersbach
2012-03-20 15:12 ` Gilles Chanteperdrix
2012-03-20 15:22 ` Glen Wernersbach
2012-03-20 15:26 ` Gilles Chanteperdrix
2012-03-20 16:40 ` Glen Wernersbach
2012-03-20 19:38 ` Gilles Chanteperdrix
2012-03-20 20:19 ` Glen Wernersbach
2012-03-20 20:35 ` Gilles Chanteperdrix
2012-03-20 21:20 ` Glen Wernersbach
2012-03-20 21:41 ` Philippe Gerum
2012-03-21 4:46 ` Glen Wernersbach
2012-03-21 7:43 ` Gilles Chanteperdrix
2012-03-21 13:21 ` Glen Wernersbach
2012-03-26 5:27 ` Glen Wernersbach
2012-03-21 8:38 ` Philippe Gerum
2012-03-21 14:41 ` Glen Wernersbach
2012-03-21 15:07 ` Philippe Gerum
2012-03-21 16:53 ` Glen Wernersbach
2012-03-20 16:22 ` Philippe Gerum
2012-03-20 16:32 ` Glen Wernersbach
2012-03-20 16:42 ` Gilles Chanteperdrix
2012-03-20 16:48 ` Glen Wernersbach
2012-03-20 14:50 ` Gilles Chanteperdrix
2012-03-20 14:59 ` Glen Wernersbach
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