SUMMARY: compiler problem

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Thanks to Mark, David, Robert, Russ, and anyone I forgot on this issue.

The solution was that we need to initialize our pthread_mutex_lock objects
in solaris 2.6.

Solaris 2.5 was more forgiving of this, but 2.6 is not as forgiving.

thanks again to the list,

my original post follows:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++++

Hi,

I have a simple threaded program (this is a slice of a much larger program)
that works on my Sun 2.5.1 system, but hangs on my Sun 2.6 system...

It Works just fine on this box:
Release: 5.5.1
Kernel architecture: sun4u
Application architecture: sparc
Hardware provider: Sun_Microsystems
Kernel version: SunOS 5.5.1 Generic 103640-32 November 1999
Patched through 108658-02

It Doesn't work on this box:
Release: 5.6
Kernel architecture: sun4u
Application architecture: sparc
Hardware provider: Sun_Microsystems
Kernel version: SunOS 5.6 Generic 105181-20 January 2000
Patched through 109339-01

Both boxes are running this compiler...

CC: WorkShop Compilers 4.2 16 Jun 1998 C++ 4.2 patch 104631-07
tdb_link: WorkShop Compilers 4.2 16 Jun 1998 C++ 4.2 patch 104631-07
CC: WorkShop Compilers 4.2 16 Jun 1998 C++ 4.2 patch 104631-07
/opt/SUNWspro/bin/../SC4.2/bin/c++filt: WorkShop Compilers 4.2 16 Jun 1998
ild: WorkShop Compilers 4.2 15 Oct 1996 ILD 2.0

If there aren't any problems that jump out right away,
then here is the code itself:

The program will hang on my Sun 2.6 box in the runThread function while
trying to invoke the pthread_mutex_lock function. I'm sure some of you may
wonder what that set function is all about, all I know is that it needs
to be there.
=========================================================================
#include <pthread.h>

void runThread(void);
void set(pthread_mutex_t& rMutex);

pthread_mutex_t* pMutex;

int main(void)
{
 pthread_mutex_t mutex;
 pthread_t thread;

 set(mutex);
 pthread_create(&thread, NULL, (void*(*)(void*))runThread, NULL);
 pthread_join(thread, NULL);
 return 1;
}

void set(pthread_mutex_t& rMutex)
{
  pMutex = &rMutex;
}

void runThread(void)
{
  pthread_mutex_lock(pMutex); // Program hangs here waiting for a
                              // lock that it never obtains
  pthread_mutex_unlock(pMutex);
}
===========================================================================

Any ideas?

thanks,

Rich

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