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, 7 insertions, 7 deletions

diff --git a/nptl/tst-stdio1.c b/nptl/tst-stdio1.c
index 2d44c16a77..4250e53750 100644
--- a/nptl/tst-stdio1.c
+++ b/nptl/tst-stdio1.c
@@ -21,6 +21,10 @@
 #include <stdio.h>
 #include <unistd.h>
 
+static int do_test (void);
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
 
 static void *tf (void *a)
 {
@@ -43,14 +47,10 @@ do_test (void)
       _exit (1);
     }
 
-  pthread_join (th, NULL);
+  delayed_exit (1);
+  xpthread_join (th);
 
   puts ("join returned");
 
-  return 0;
+  return 1;
 }
-
-
-#define EXPECTED_SIGNAL SIGALRM
-#define TEST_FUNCTION do_test ()
-#include "../test-skeleton.c"