Re: [Xenomai-help] Problems when cross-compiling Xenomai

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

Felipe Brandão Cavalcanti wrote:
> 2010/2/10 Felipe Brandão Cavalcanti <cavalkaf@domain.hid>
> 
>>
>> 2010/2/10 Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.orgm>
>>
>> Felipe Brandão Cavalcanti wrote:
>>>> Hello,
>>>>
>>>> I am having some problems when trying to cross-compile the userspace
>>> portion
>>>> of the latest Xenomai (2.5.1) for ARM. I am attempting to get Xenomai
>>>> running on a IGEPv2 OMAP board (Beagleboard based), so I am
>>> cross-compiling
>>>> with bitbake on top of a poky Linux distribution.
>>> Do you have the same problem if you build Xenomai user-space portion
>>> running the standard build procedure without additional CFLAGS and
>>> LDFLAGS?
>>>
>>>
>> I have not tried this - the cross compiler automatically adds them, and I
>> am not sure what I can remove. However, I will try removing them to see what
>> works. One thing that I noticed using the -k option in the make command is
>> that compiling fails only in the testsuite.
>>
>> I found an old thread with a similar problem:
>> https://mail.gna.org/public/xenomai-help/2008-07/msg00141.html
>>
>>
> 
> Just tried removing the LDFLAGS and CFLAGS, same error. I've attached the
> configure and make logs.

Ok. Made a diff between your configure log and mine. It seems the
problem is at some point configure does not find a compiler named
"arm-linux-gcc" and decides to use "gcc". So, your host compiler is
probably used to test whether shm_open/shm_unlink and a few other
functions exist for your target, and finds them whereas they are
probably not available.

So, the cure is to pass --host=arm-none-linux-gnueabi instead of
--host=arm-linux.

This looks a bit like a bug. Did you (or bit-bake, or poky, whatever)
re-run autoconf or are you using the original configure script?

-- 
Gilles Chanteperdrix, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com