nptl: Avoid expected SIGALRM in most tests [BZ #20432]

Before this change, several tests did not detect early deadlocks
because they used SIGALRM as the expected signal, and they ran
for the full default TIMEOUT seconds.

This commit adds a new delayed_exit function to the test skeleton,
along with several error-checking wrappers to pthread functions.
Additional error checking is introduced into several tests.

1 files changed, 6 insertions, 5 deletions

diff --git a/nptl/tst-eintr2.c b/nptl/tst-eintr2.c
index 7f50f4bcf4..0ef6d30474 100644
--- a/nptl/tst-eintr2.c
+++ b/nptl/tst-eintr2.c
@@ -24,6 +24,11 @@
 #include <string.h>
 #include <sys/time.h>
 
+static int do_test (void);
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
+
 #include "eintr.c"
 
 
@@ -103,6 +108,7 @@ do_test (void)
       exit (1);
     }
 
+  delayed_exit (3);
   /* This call must never return.  */
   e = pthread_mutex_lock (&m1);
   printf ("main: mutex_lock returned: %s\n",
@@ -110,8 +116,3 @@ do_test (void)
 
   return 1;
 }
-
-#define EXPECTED_SIGNAL SIGALRM
-#define TIMEOUT 3
-#define TEST_FUNCTION do_test ()
-#include "../test-skeleton.c"