diff options
| -rw-r--r-- | stdlib/test-dlclose-exit-race.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/stdlib/test-dlclose-exit-race.c b/stdlib/test-dlclose-exit-race.c index b463253281..2c44efdde6 100644 --- a/stdlib/test-dlclose-exit-race.c +++ b/stdlib/test-dlclose-exit-race.c @@ -29,6 +29,7 @@ #include <stdio.h> #include <stdlib.h> +#include <errno.h> #include <semaphore.h> #include <support/check.h> #include <support/xdlfcn.h> @@ -64,6 +65,7 @@ last (void) int main (void) { + int value; void *dso; pthread_t thread; @@ -71,7 +73,17 @@ main (void) dso = xdlopen ("$ORIGIN/test-dlclose-exit-race-helper.so", RTLD_NOW|RTLD_GLOBAL); - thread = xpthread_create (NULL, exit_thread, NULL); + if ((value = pthread_create (&thread, NULL, exit_thread, NULL)) != 0) + { + /* If pthread_create fails, then exit() is called in the main + thread instead of a second thread, so the semaphore post that + would have happened in 'last' gets blocked behind the call to + first() - which is waiting on the semaphore, and thus + hangs. */ + sem_post (&order2); + errno = value; + FAIL_EXIT1 ("pthread_create: %m"); + } xdlclose (dso); xpthread_join (thread); |