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authorSiddhesh Poyarekar <siddhesh@redhat.com>2012-10-01 23:20:42 +0530
committerSiddhesh Poyarekar <siddhesh@redhat.com>2012-10-01 23:21:39 +0530
commit55a051c985c3e7965a2f5dd5f762ac2737adae01 (patch)
tree39837cae2143d738f84c38380a924b5ef65f14d5 /nptl/tst-cond-except.c
parentbec749fda1cbc1934f7e58dd2763603f4f207f26 (diff)
downloadglibc-55a051c985c3e7965a2f5dd5f762ac2737adae01.tar.gz
Fix exception table for i386 pthread_cond_wait
[BZ #14477] Add an additional entry in the exception table to jump to __condvar_w_cleanup2 instead of __condvar_w_cleanup for PI mutexes when %ebx contains the address of the futex instead of the condition variable.
Diffstat (limited to 'nptl/tst-cond-except.c')
-rw-r--r--nptl/tst-cond-except.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/nptl/tst-cond-except.c b/nptl/tst-cond-except.c
new file mode 100644
index 0000000000..b9871ba864
--- /dev/null
+++ b/nptl/tst-cond-except.c
@@ -0,0 +1,108 @@
+/* Verify that exception table for pthread_cond_wait is correct.
+ Copyright (C) 2012 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+pthread_mutex_t mutex;
+pthread_cond_t cond;
+
+#define CHECK_RETURN_VAL_OR_FAIL(ret,str) \
+ ({ if ((ret) != 0) \
+ { \
+ printf ("%s failed: %s\n", (str), strerror (ret)); \
+ ret = 1; \
+ goto out; \
+ } \
+ })
+
+
+void
+clean (void *arg)
+{
+ puts ("clean: Unlocking mutex...");
+ pthread_mutex_unlock ((pthread_mutex_t *) arg);
+ puts ("clean: Mutex unlocked...");
+}
+
+void *
+thr (void *arg)
+{
+ int ret = 0;
+ pthread_mutexattr_t mutexAttr;
+ ret = pthread_mutexattr_init (&mutexAttr);
+ CHECK_RETURN_VAL_OR_FAIL (ret, "pthread_mutexattr_init");
+
+ ret = pthread_mutexattr_setprotocol (&mutexAttr, PTHREAD_PRIO_INHERIT);
+ CHECK_RETURN_VAL_OR_FAIL (ret, "pthread_mutexattr_setprotocol");
+
+ ret = pthread_mutex_init (&mutex, &mutexAttr);
+ CHECK_RETURN_VAL_OR_FAIL (ret, "pthread_mutex_init");
+
+ ret = pthread_cond_init (&cond, 0);
+ CHECK_RETURN_VAL_OR_FAIL (ret, "pthread_cond_init");
+
+ puts ("th: Init done, entering wait...");
+
+ pthread_cleanup_push (clean, (void *) &mutex);
+ ret = pthread_mutex_lock (&mutex);
+ CHECK_RETURN_VAL_OR_FAIL (ret, "pthread_mutex_lock");
+ while (1)
+ {
+ ret = pthread_cond_wait (&cond, &mutex);
+ CHECK_RETURN_VAL_OR_FAIL (ret, "pthread_cond_wait");
+ }
+ pthread_cleanup_pop (1);
+
+out:
+ return (void *)ret;
+}
+
+int
+do_test ()
+{
+ pthread_t thread;
+ int ret = 0;
+ void *thr_ret = 0;
+ ret = pthread_create (&thread, 0, thr, &thr_ret);
+ CHECK_RETURN_VAL_OR_FAIL (ret, "pthread_create");
+
+ puts ("main: Thread created, waiting a bit...");
+ sleep (2);
+
+ puts ("main: Cancelling thread...");
+ ret = pthread_cancel (thread);
+ CHECK_RETURN_VAL_OR_FAIL (ret, "pthread_cancel");
+
+ puts ("main: Joining th...");
+ ret = pthread_join (thread, NULL);
+ CHECK_RETURN_VAL_OR_FAIL (ret, "pthread_join");
+
+ if (thr_ret != NULL)
+ return 1;
+
+ puts ("main: Joined thread, done!");
+
+out:
+ return ret;
+}
+
+#define TIMEOUT 5
+#include "../test-skeleton.c"