Krzysztof Błaszkowski wrote:
> On Wed, 2010-08-18 at 00:59 +0200, Gilles Chanteperdrix wrote:
>> - I have not really checked your user-space compilation flags, I am
>> using xeno-config to get the correct ones.
>
> xeno-config --skin=native --cflags gives:
>
> -I/usr/xenomai/include -D_GNU_SOURCE -D_REENTRANT -Wall -pipe -D__XENO__
>
>
> note that there is no xenomai installed on my r&d server
> in /usr/xenomai/
>
> i build xenomai per kernel and install it in kernel's INSTALL sub-dir
> (DESTDIR=) as well as kernel's modules and other related stuff for this
> particular kernel.
> (otherwise i would go mad soon due to various versions ..)
xeno-config handles the DESTDIR environment variable (failing to do this
would be kind of silly, because a lot of people, including the
maintainers, use Xenomai mostly in cross-compiled environment).
> xeno-config --skin=native --ldflags gives:
>
> -lnative -L/usr/xenomai/lib -lxenomai -lpthread
>
> and indeed i missed libpthread but otoh userland without pthread even
> does not depend directly on pthreads:
>
> ldd xeno-shmem-fork
> linux-gate.so.1 => (0xffffe000)
> libnative.so.3 => not found
> libxenomai.so.0 => not found
> libc.so.6 => /lib/libc.so.6 (0xf7da5000)
> /lib/ld-linux.so.2 (0xf7f10000)
>
> when compiled without pthreads.
libnative depends on pthread, if ldd had been able to find libnative, it
would have found the dependency on libpthread.
>> - your user-space code was missing #include <unistd.h>
>
> i added. it changed nothing.
Ok, with all other changes I assume?
>> - some subtle difference in the glibc
>
> hmm, i'd say that is rather out my control. i use by default opensuse
> for r&d.
>
> does this mean that this distro is broken ?
>
> (otoh many things are - especially gnome)
What version of opensuse? If several toolchains are available, which one
are you using? I do not mean to say that the glibc is broken, only that
xenomai could use it in a way that breaks with the version you are using.
>> In any case, without further information, it is hard for me to dig any
>> further tonight. Regards.
>
> i see. want you me to send .config file ? anything else ?
Run cat /proc/ipipe/version /proc/xenomai/version, uname and "getconf
GNU_LIBPTHREAD_VERSION" on the target, in order to get sure that you run
the versions you think you are running. Then please send your .config.
Please also send a full kernel log, from the boot, up to the bug.
--
Gilles.
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