#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)
{
thread_routine (void *arg)
{
errno = 42;
+ pthread_barrier_wait (&start_threads_barrier);
break_here ();
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)
{
}
errno = 23;
+ pthread_barrier_wait (&start_threads_barrier);
err = pthread_join (the_thread, NULL);
if (err != 0)