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thread debugging
- From: "MuthuKumar-15" <kmuthukumar at mail15 dot com>
- To: <gdb at sources dot redhat dot com>
- Date: Tue, 25 May 2004 14:51:57 +0530
- Subject: thread debugging
Hello All.
I have a problem in thread debugging with GDB on HP-UX platform.
*** Sample program ***
/* thrd.c */
#include <pthread.h>
#include <stdio.h>
#include <errno.h>
void *func()
{
printf("Thread function\n"); pthread_exit(NULL);
}
main()
{
pthread_t *t1; int result=0;
t1=(pthread_t)malloc(sizeof(pthread_t));
bzero((void *)t1,sizeof(pthread_t));
result = pthread_create(t1, NULL, func, NULL);
if (result == EAGAIN) {
printf("EAGAIN Error\n"); free(t1); exit(1);
}
else if (result == -1) {
printf("Negative return value\n"); free(t1); exit(1);
}
pthread_exit(NULL);
free(t1);
}
**************************
$ cc -g -o thrd thrd.c
gdb execution:
$ gdb -q thrd
gdb> b main
gdb> b func
gdb> r
...
< After finishing the pthread_exit in main(),it is going to func()'s pthread_exit.>
gdb> s
It is hanging over here.........!! It is not responsing.
1. What is the problem on program? How to debug this?
2. Is it good to debug memory leaks with GDB + librtc library on HP-UX platfrom?
Regards,
Muthukumar.
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