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authorSasha Levin <sasha.levin@oracle.com>2013-06-14 02:41:19 +0400
committerIngo Molnar <mingo@kernel.org>2013-11-27 14:55:22 +0400
commit878f968eeb852383ff79dc3f181db24e5b52fd75 (patch)
tree0d52c01371a3697c5ecd1daf7da184094db4bab5 /tools/lib/lockdep/tests
parent45e6207464b59dca63c8a9a79a7befbbf6a68fdb (diff)
downloadlinux-878f968eeb852383ff79dc3f181db24e5b52fd75.tar.xz
liblockdep: Add pthread_mutex_t test suite
This is a rather simple and basic test suite to test common locking issues. Beyond tests, it also shows how to use the library. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/1371163284-6346-5-git-send-email-sasha.levin@oracle.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/lib/lockdep/tests')
-rw-r--r--tools/lib/lockdep/tests/AA.c13
-rw-r--r--tools/lib/lockdep/tests/ABBA.c13
-rw-r--r--tools/lib/lockdep/tests/ABBCCA.c15
-rw-r--r--tools/lib/lockdep/tests/ABBCCDDA.c17
-rw-r--r--tools/lib/lockdep/tests/ABCABC.c15
-rw-r--r--tools/lib/lockdep/tests/ABCDBCDA.c17
-rw-r--r--tools/lib/lockdep/tests/ABCDBDDA.c17
-rw-r--r--tools/lib/lockdep/tests/common.h12
-rw-r--r--tools/lib/lockdep/tests/unlock_balance.c12
9 files changed, 131 insertions, 0 deletions
diff --git a/tools/lib/lockdep/tests/AA.c b/tools/lib/lockdep/tests/AA.c
new file mode 100644
index 000000000000..0f782ff404ac
--- /dev/null
+++ b/tools/lib/lockdep/tests/AA.c
@@ -0,0 +1,13 @@
+#include <liblockdep/mutex.h>
+
+void main(void)
+{
+ pthread_mutex_t a, b;
+
+ pthread_mutex_init(&a, NULL);
+ pthread_mutex_init(&b, NULL);
+
+ pthread_mutex_lock(&a);
+ pthread_mutex_lock(&b);
+ pthread_mutex_lock(&a);
+}
diff --git a/tools/lib/lockdep/tests/ABBA.c b/tools/lib/lockdep/tests/ABBA.c
new file mode 100644
index 000000000000..07f0e29d5485
--- /dev/null
+++ b/tools/lib/lockdep/tests/ABBA.c
@@ -0,0 +1,13 @@
+#include <liblockdep/mutex.h>
+#include "common.h"
+
+void main(void)
+{
+ pthread_mutex_t a, b;
+
+ pthread_mutex_init(&a, NULL);
+ pthread_mutex_init(&b, NULL);
+
+ LOCK_UNLOCK_2(a, b);
+ LOCK_UNLOCK_2(b, a);
+}
diff --git a/tools/lib/lockdep/tests/ABBCCA.c b/tools/lib/lockdep/tests/ABBCCA.c
new file mode 100644
index 000000000000..843db09ac666
--- /dev/null
+++ b/tools/lib/lockdep/tests/ABBCCA.c
@@ -0,0 +1,15 @@
+#include <liblockdep/mutex.h>
+#include "common.h"
+
+void main(void)
+{
+ pthread_mutex_t a, b, c;
+
+ pthread_mutex_init(&a, NULL);
+ pthread_mutex_init(&b, NULL);
+ pthread_mutex_init(&c, NULL);
+
+ LOCK_UNLOCK_2(a, b);
+ LOCK_UNLOCK_2(b, c);
+ LOCK_UNLOCK_2(c, a);
+}
diff --git a/tools/lib/lockdep/tests/ABBCCDDA.c b/tools/lib/lockdep/tests/ABBCCDDA.c
new file mode 100644
index 000000000000..33620e268f85
--- /dev/null
+++ b/tools/lib/lockdep/tests/ABBCCDDA.c
@@ -0,0 +1,17 @@
+#include <liblockdep/mutex.h>
+#include "common.h"
+
+void main(void)
+{
+ pthread_mutex_t a, b, c, d;
+
+ pthread_mutex_init(&a, NULL);
+ pthread_mutex_init(&b, NULL);
+ pthread_mutex_init(&c, NULL);
+ pthread_mutex_init(&d, NULL);
+
+ LOCK_UNLOCK_2(a, b);
+ LOCK_UNLOCK_2(b, c);
+ LOCK_UNLOCK_2(c, d);
+ LOCK_UNLOCK_2(d, a);
+}
diff --git a/tools/lib/lockdep/tests/ABCABC.c b/tools/lib/lockdep/tests/ABCABC.c
new file mode 100644
index 000000000000..3fee51e3a68a
--- /dev/null
+++ b/tools/lib/lockdep/tests/ABCABC.c
@@ -0,0 +1,15 @@
+#include <liblockdep/mutex.h>
+#include "common.h"
+
+void main(void)
+{
+ pthread_mutex_t a, b, c;
+
+ pthread_mutex_init(&a, NULL);
+ pthread_mutex_init(&b, NULL);
+ pthread_mutex_init(&c, NULL);
+
+ LOCK_UNLOCK_2(a, b);
+ LOCK_UNLOCK_2(c, a);
+ LOCK_UNLOCK_2(b, c);
+}
diff --git a/tools/lib/lockdep/tests/ABCDBCDA.c b/tools/lib/lockdep/tests/ABCDBCDA.c
new file mode 100644
index 000000000000..427ba562c75b
--- /dev/null
+++ b/tools/lib/lockdep/tests/ABCDBCDA.c
@@ -0,0 +1,17 @@
+#include <liblockdep/mutex.h>
+#include "common.h"
+
+void main(void)
+{
+ pthread_mutex_t a, b, c, d;
+
+ pthread_mutex_init(&a, NULL);
+ pthread_mutex_init(&b, NULL);
+ pthread_mutex_init(&c, NULL);
+ pthread_mutex_init(&d, NULL);
+
+ LOCK_UNLOCK_2(a, b);
+ LOCK_UNLOCK_2(c, d);
+ LOCK_UNLOCK_2(b, c);
+ LOCK_UNLOCK_2(d, a);
+}
diff --git a/tools/lib/lockdep/tests/ABCDBDDA.c b/tools/lib/lockdep/tests/ABCDBDDA.c
new file mode 100644
index 000000000000..680c6cf3e919
--- /dev/null
+++ b/tools/lib/lockdep/tests/ABCDBDDA.c
@@ -0,0 +1,17 @@
+#include <liblockdep/mutex.h>
+#include "common.h"
+
+void main(void)
+{
+ pthread_mutex_t a, b, c, d;
+
+ pthread_mutex_init(&a, NULL);
+ pthread_mutex_init(&b, NULL);
+ pthread_mutex_init(&c, NULL);
+ pthread_mutex_init(&d, NULL);
+
+ LOCK_UNLOCK_2(a, b);
+ LOCK_UNLOCK_2(c, d);
+ LOCK_UNLOCK_2(b, d);
+ LOCK_UNLOCK_2(d, a);
+}
diff --git a/tools/lib/lockdep/tests/common.h b/tools/lib/lockdep/tests/common.h
new file mode 100644
index 000000000000..d89e94d47d86
--- /dev/null
+++ b/tools/lib/lockdep/tests/common.h
@@ -0,0 +1,12 @@
+#ifndef _LIBLOCKDEP_TEST_COMMON_H
+#define _LIBLOCKDEP_TEST_COMMON_H
+
+#define LOCK_UNLOCK_2(a, b) \
+ do { \
+ pthread_mutex_lock(&(a)); \
+ pthread_mutex_lock(&(b)); \
+ pthread_mutex_unlock(&(b)); \
+ pthread_mutex_unlock(&(a)); \
+ } while(0)
+
+#endif
diff --git a/tools/lib/lockdep/tests/unlock_balance.c b/tools/lib/lockdep/tests/unlock_balance.c
new file mode 100644
index 000000000000..0bc62de686f7
--- /dev/null
+++ b/tools/lib/lockdep/tests/unlock_balance.c
@@ -0,0 +1,12 @@
+#include <liblockdep/mutex.h>
+
+void main(void)
+{
+ pthread_mutex_t a;
+
+ pthread_mutex_init(&a, NULL);
+
+ pthread_mutex_lock(&a);
+ pthread_mutex_unlock(&a);
+ pthread_mutex_unlock(&a);
+}