[cdt-dev] CDT: Remote debug of multithread application

["Zvi Vered" <veredz72@xxxxxxxxx>]

Hi All,

My (very simple) application runs on an embedded Pentium M under vanilla
2.6.27.35. In order to debug it I launched:
gdbserver :2345 thread.out

On the host side I launched eclipse-cdt (Galileo) and configured the 
debugger for "GDB (DSF)
remote system process launcher".

If the breakpoint is on the main thread, program is stopped and there is a 
'->'
on the required line. I can watch local variables.

But if the breakpoint is on a thread, program is stopped but there is no 
'->'
near the breakpoint. It is not clear where the CPU has reached. I can not 
watch local variables.

It is impossible to debug a multithread application this way.

When I tried to debug the application with gdb (no eclipse) it works fine.
The toolchain,gdb, gdbserver was created using crosstool-ng project.
In the debugger configuration I pointed to the shared libraries, gdb created 
with crosstool-ng.
I did not use .gdbinit

What am I doing wrong ?
The Makefile, source are attached at the end of this mail.

Thanks.

Makefile
------------------------------------------------------------
thread.out: thread.o
gcc -o thread.out thread.o -lpthread

thread.o: thread.c
gcc -g -c thread.c -o thread.o



thread.c
-----------------------------------------------------------
void *print_message_function( void *ptr )
{
    char *message = (char *) ptr;
    int rc;

    while (1)
    {
     printf("%s \n", message);
     sleep (1);
    }
}

int main(void)
{
   pthread_t thread1, thread2;
   char *message1 = "Thread 1";
   char *message2 = "Thread 2";
   int  iret1, iret2;
   int rc;

   iret1 = pthread_create( &thread1, NULL, print_message_function, (void*) 
message1);
   iret2 = pthread_create( &thread2, NULL, print_message_function, (void*) 
message2);

   while (1)
   {
       sleep (1);
    }
    return 0;
}