gdb problems with threads on mpc512x

I encountered several problem debugging multithreated software with gdb on mpc512x, remotely (gdbserver) and locally. I built gdb 6.8 from scratch, but it's crashing when I stop execution into a thread.

Did anyone get it to work correctly?

Thanks,
Daniele

--

Daniele Bosi DIGITEK S.p.A.
Via L. Romagnoli 24,
41033 Concordia sulla Secchia
Modena (MO), Italy
Tel: +39-(0)53556942 Fax. +39-(0)53554550
Web:     http://www.digitek.it
Mail to: [email protected]

Dear Daniele Bosi,

Please post plain text only on mailing lists.

We use GDB 6.7 in our ELDK 4.2; we didn't encounter such problems in our tests.

Best regards,

Wolfgang Denk

DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [email protected]
I often quote myself; it adds spice to my conversation.  - G. B. Shaw

I attach the listing of our program, I tried it on ELDK4.2 Freescale (kernel 2.6.24.6 by Freescale, your rootfs) and it's still giving me problems: if I issue br PrintHello
then cont-inue for some times, after a while gdb stops responding and is not even getting CTRL-C or CTRL-Z.

Of course the same works fine on i686.

I tried both gdbserver and gdb and even rebuilt the file with the target gcc.

Thank you,
Daniele

==== CUT HERE ====
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>

#define NUM_THREADS     5

void *PrintHello(void *threadid)
{
    int c = 0;
   int tid;
   tid = (int)threadid;

   while (++c < 100) {
   printf("Hello World! It's me, thread #%d!\n", tid); sleep (1);
   }
   pthread_exit(NULL);
}

int main (int argc, char *argv[])
{
    printf ("Hello world\n");
   pthread_t threads[NUM_THREADS];
   int rc, t;
   for(t=0; t<NUM_THREADS; t++){
      printf("In main: creating thread %d\n", t);
      rc = pthread_create(&threads[t], NULL, PrintHello, (void *)t); if (rc){
         printf("ERROR; return code from pthread_create() is %d\n", rc); exit(-1);
      }
   }
   pthread_exit(NULL);
}

==== CUT HERE ====

Wolfgang Denk ha scritto: Dear Daniele Bosi, In message <[email protected]> you wrote: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> Mail to: [email protected]