From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Wed, 18 Jan 2012 20:22:49 +0100
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-help] Compile error
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To: Terry Fryar <terry.fryar@domain.hid>
Cc: xenomai@xenomai.org

On 01/18/2012 04:12 PM, Terry Fryar wrote:
> Using xenomai 2.6.0 with 2.6.38 kernel.  Turned off
> CONFIG_XENO_OPT_PERVASIVE, and now I can't compile kernel:
>  
> 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'
> 
> There are some ifdef's for this flag....how to compile xenomai kernel
> without pervasive user support?  Only using kernel modules with xenomai at
> this point, and I'm trying to optimize the kernel performance....

I am afraid nobody has tried compiling without pervasive support for a
long time. Anyway, you will not gain enough that way: you will not
reduce the interrupt latency from 20us to 500ns. As I said, you can not
have a 500ns latency on any processor where xenomai is available.

-- 
                                                                Gilles.