Re: [Xenomai-help] Xenomai with µClibc

Perrine Martignoni Wed, 30 May 2007 02:12:56 -0700

I have reduced my code until this and it doesn't compile :



#include <pthread.h>

#include <stdlib.h>

#include <sys/mman.h>



void routine1 (void * cookie){

           int i=0;

           for(i=0;i<10;i++){

           }

}



int main(int argc, char **argv)

{

           int i = 0;

           int err;

           pthread_t task1;

           pthread_attr_t attr1;

           mlockall(MCL_CURRENT | MCL_FUTURE);

           err = pthread_create (&task1,&attr1,(void *)routine1,NULL);

exit;

}



I don't see what remove.

mlockall isn't the reason. I tried too.



On 5/30/07, Jan Kiszka <[EMAIL PROTECTED]> wrote:


Perrine Martignoni wrote:
> I compiled cyclictest with this command line and it works with no
problem :
>
>
> arm-linux-gcc -I/usr/xenomai_arm-2.3.1uClibc/include -I/usr/xenomai_arm-
> 2.3.1uClibc/include/posix -D_GNU_SOURCE -D_REENTRANT -D__XENO__
> -D__IN_XENO__ -Wstrict-prototypes -DIPIPE_TRACE=1 -g cyclictest.c -c -o
> cyclictest.o
>
> arm-linux-gcc -Wl,--wrap,pthread_create -Wl,--wrap,pthread_setschedparam
> -Wl,--wrap,pthread_getschedparam -Wl,--wrap,pthread_yield
> -Wl,--wrap,sched_yield -Wl,--wrap,sem_init -Wl,--wrap,sem_destroy
> -Wl,--wrap,sem_post -Wl,--wrap,sem_timedwait -Wl,--wrap,sem_wait
> -Wl,--wrap,sem_trywait -Wl,--wrap,sem_getvalue -Wl,--wrap,sem_open
> -Wl,--wrap,sem_close -Wl,--wrap,sem_unlink -Wl,--wrap,clock_getres
> -Wl,--wrap,clock_gettime -Wl,--wrap,clock_settime
> -Wl,--wrap,clock_nanosleep
> -Wl,--wrap,nanosleep -Wl,--wrap,pthread_mutexattr_init
> -Wl,--wrap,pthread_mutexattr_destroy
-Wl,--wrap,pthread_mutexattr_gettype
> -Wl,--wrap,pthread_mutexattr_settype
> -Wl,--wrap,pthread_mutexattr_getprotocol
> -Wl,--wrap,pthread_mutexattr_setprotocol
> -Wl,--wrap,pthread_mutexattr_getpshared
> -Wl,--wrap,pthread_mutexattr_setpshared -Wl,--wrap,pthread_mutex_init
> -Wl,--wrap,pthread_mutex_destroy -Wl,--wrap,pthread_mutex_lock
> -Wl,--wrap,pthread_mutex_trylock -Wl,--wrap,pthread_mutex_timedlock
> -Wl,--wrap,pthread_mutex_unlock -Wl,--wrap,pthread_condattr_init
> -Wl,--wrap,pthread_condattr_destroy -Wl,--wrap,pthread_condattr_getclock
> -Wl,--wrap,pthread_condattr_setclock
-Wl,--wrap,pthread_condattr_getpshared
> -Wl,--wrap,pthread_condattr_setpshared -Wl,--wrap,pthread_cond_init
> -Wl,--wrap,pthread_cond_destroy -Wl,--wrap,pthread_cond_wait
> -Wl,--wrap,pthread_cond_timedwait -Wl,--wrap,pthread_cond_signal
> -Wl,--wrap,pthread_cond_broadcast -Wl,--wrap,mq_open -Wl,--wrap,mq_close
> -Wl,--wrap,mq_unlink -Wl,--wrap,mq_getattr -Wl,--wrap,mq_setattr
> -Wl,--wrap,mq_send -Wl,--wrap,mq_timedsend -Wl,--wrap,mq_receive
> -Wl,--wrap,mq_timedreceive -Wl,--wrap,mq_notify -Wl,--wrap,open
> -Wl,--wrap,socket -Wl,--wrap,close -Wl,--wrap,ioctl -Wl,--wrap,read
> -Wl,--wrap,write -Wl,--wrap,recvmsg -Wl,--wrap,sendmsg
-Wl,--wrap,recvfrom
> -Wl,--wrap,sendto -Wl,--wrap,recv -Wl,--wrap,send -Wl,--wrap,getsockopt
> -Wl,--wrap,setsockopt -Wl,--wrap,bind -Wl,--wrap,connect
-Wl,--wrap,listen
> -Wl,--wrap,accept -Wl,--wrap,getsockname -Wl,--wrap,getpeername
> -Wl,--wrap,shutdown -Wl,--wrap,timer_create -Wl,--wrap,timer_delete
> -Wl,--wrap,timer_settime -Wl,--wrap,timer_getoverrun
> -Wl,--wrap,timer_gettime -Wl,--wrap,ftruncate -Wl,--wrap,close
> -Wl,--wrap,shm_open -Wl,--wrap,shm_unlink -Wl,--wrap,mmap
-Wl,--wrap,munmap
> -L/usr/xenomai_arm-2.3.1uClibc/lib cyclictest.o -lpthread_rt -lpthread
-lrt
> -o cyclictest
>
>
>
> I don't see the difference with my own test.
> I try again with my code with this command line exactly and I have the
same
> error :
>
>
> /usr/src/ELDK_arm/usr/../arm/lib/libpthread.so: undefined reference to
> `__wrap_mmap'
>
> /usr/src/ELDK_arm/usr/../arm/lib/librt.so: undefined reference
> to`__wrap_close'
>
> /usr/src/ELDK_arm/usr/../arm/lib/libpthread.so: undefined reference to
> `__wrap_munmap'
>
> collect2: ld returned 1 exit status
>

I don't see the reason either. But as the compiled code seems to have an
effect here, could you try to reduce your program until is builds fine?
Maybe this will give us some more hints where to dig.

Jan

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