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, 9 insertions, 11 deletions

diff --git a/nptl/tst-eintr4.c b/nptl/tst-eintr4.c
index 25fae34560..f6d068f334 100644
--- a/nptl/tst-eintr4.c
+++ b/nptl/tst-eintr4.c
@@ -23,6 +23,11 @@
 #include <stdlib.h>
 #include <string.h>
 
+static int do_test (void);
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
+
 #include "eintr.c"
 
 
@@ -40,16 +45,9 @@ do_test (void)
       exit (1);
     }
 
+  delayed_exit (1);
   /* This call must never return.  */
-  int e = pthread_barrier_wait (&b);
-
-  if (e == EINTR)
-    puts ("pthread_join returned with EINTR");
-
-  return 0;
+  xpthread_barrier_wait (&b);
+  puts ("error: pthread_barrier_wait returned");
+  return 1;
 }
-
-#define EXPECTED_SIGNAL SIGALRM
-#define TIMEOUT 1
-#define TEST_FUNCTION do_test ()
-#include "../test-skeleton.c"