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/* This testcase is part of GDB, the GNU debugger.
Copyright 2017-2023 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <pthread.h>
#include <errno.h>
/* This barrier ensures we only reach the initial breakpoint after both threads
have set errno. */
pthread_barrier_t start_threads_barrier;
static void
break_here (void)
{
}
static void *
thread_routine (void *arg)
{
errno = 42;
pthread_barrier_wait (&start_threads_barrier);
break_here ();
while (1)
sleep (1);
return NULL;
}
int
main (int argc, char *argv)
{
pthread_t the_thread;
int err;
pthread_barrier_init (&start_threads_barrier, NULL, 2);
err = pthread_create (&the_thread, NULL, thread_routine, NULL);
if (err != 0)
{
fprintf (stderr, "pthread_create: %s (%d)\n", strerror (err), err);
exit (EXIT_FAILURE);
}
errno = 23;
pthread_barrier_wait (&start_threads_barrier);
err = pthread_join (the_thread, NULL);
if (err != 0)
{
fprintf (stderr, "pthread_join: %s (%d)\n", strerror (err), err);
exit (EXIT_FAILURE);
}
exit (EXIT_SUCCESS);
}
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