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authorUlrich Drepper <drepper@redhat.com>2004-07-07 07:36:37 +0000
committerUlrich Drepper <drepper@redhat.com>2004-07-07 07:36:37 +0000
commite782376c013a8ef486e625b50895d78879a9141f (patch)
tree5bbe07a08a0550d6c7f7d01d424aff91ba69e928 /nptl
parent4183d2a76ba5a04dbd083531365a3c5cdd4af6b2 (diff)
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Test for deadlock situation when running destructors for DSOs.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/tst-fini1.c35
-rw-r--r--nptl/tst-fini1mod.c72
2 files changed, 107 insertions, 0 deletions
diff --git a/nptl/tst-fini1.c b/nptl/tst-fini1.c
new file mode 100644
index 0000000000..bec4be1d30
--- /dev/null
+++ b/nptl/tst-fini1.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <unistd.h>
+
+extern void m (void);
+
+int
+main (void)
+{
+ alarm (5);
+
+ m ();
+
+ /* The destructor is supposed to run now. Make sure that if it is
+ not we will notice it by using 42 as the exit code. In case the
+ destructor is run it will terminate with status zero. */
+ return 42;
+}
diff --git a/nptl/tst-fini1mod.c b/nptl/tst-fini1mod.c
new file mode 100644
index 0000000000..492d9ffb89
--- /dev/null
+++ b/nptl/tst-fini1mod.c
@@ -0,0 +1,72 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+
+static void *
+tf (void *arg)
+{
+ int fds[2];
+ if (pipe (fds) != 0)
+ {
+ puts ("pipe failed");
+ exit (1);
+ }
+
+ char buf[10];
+ read (fds[0], buf, sizeof (buf));
+
+ puts ("read returned");
+ exit (1);
+}
+
+static pthread_t th;
+
+static void
+__attribute ((destructor))
+dest (void)
+{
+ if (pthread_cancel (th) != 0)
+ {
+ puts ("cancel failed");
+ _exit (1);
+ }
+ void *r;
+ if (pthread_join (th, &r) != 0)
+ {
+ puts ("join failed");
+ _exit (1);
+ }
+ /* Exit successfully. */
+ _exit (0);
+}
+
+void
+m (void)
+{
+ if (pthread_create (&th, NULL, tf, NULL) != 0)
+ {
+ puts ("create failed");
+ _exit (1);
+ }
+}