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liblockdep: Add pthread_mutex_t test suite

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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>
This commit is contained in:
Sasha Levin
2013-06-13 18:41:19 -04:00
committed by Ingo Molnar
parent 45e6207464
commit 878f968eeb
10 changed files with 158 additions and 0 deletions
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13
tools/lib/lockdep/tests/AA.c Normal file
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#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);
}

13
tools/lib/lockdep/tests/ABBA.c Normal file
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@@ -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);
}

15
tools/lib/lockdep/tests/ABBCCA.c Normal file
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#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);
}

17
tools/lib/lockdep/tests/ABBCCDDA.c Normal file
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#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);
}

15
tools/lib/lockdep/tests/ABCABC.c Normal file
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#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);
}

17
tools/lib/lockdep/tests/ABCDBCDA.c Normal file
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@@ -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);
}

17
tools/lib/lockdep/tests/ABCDBDDA.c Normal file
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@@ -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);
}

12
tools/lib/lockdep/tests/common.h Normal file
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@@ -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

12
tools/lib/lockdep/tests/unlock_balance.c Normal file
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@@ -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);
}