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    Subject[PATCH v3 3/7] liblockdep: mutex test suite
    Date
    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>
    ---
    tools/lib/lockdep/run_tests.sh | 15 +++++++++++++++
    tools/lib/lockdep/tests/AA.c | 16 ++++++++++++++++
    tools/lib/lockdep/tests/ABBA.c | 16 ++++++++++++++++
    tools/lib/lockdep/tests/ABBCCA.c | 18 ++++++++++++++++++
    tools/lib/lockdep/tests/ABBCCDDA.c | 20 ++++++++++++++++++++
    tools/lib/lockdep/tests/ABCABC.c | 18 ++++++++++++++++++
    tools/lib/lockdep/tests/ABCDBCDA.c | 20 ++++++++++++++++++++
    tools/lib/lockdep/tests/ABCDBDDA.c | 20 ++++++++++++++++++++
    tools/lib/lockdep/tests/common.h | 12 ++++++++++++
    tools/lib/lockdep/tests/unlock_balance.c | 15 +++++++++++++++
    10 files changed, 170 insertions(+)
    create mode 100755 tools/lib/lockdep/run_tests.sh
    create mode 100644 tools/lib/lockdep/tests/AA.c
    create mode 100644 tools/lib/lockdep/tests/ABBA.c
    create mode 100644 tools/lib/lockdep/tests/ABBCCA.c
    create mode 100644 tools/lib/lockdep/tests/ABBCCDDA.c
    create mode 100644 tools/lib/lockdep/tests/ABCABC.c
    create mode 100644 tools/lib/lockdep/tests/ABCDBCDA.c
    create mode 100644 tools/lib/lockdep/tests/ABCDBDDA.c
    create mode 100644 tools/lib/lockdep/tests/common.h
    create mode 100644 tools/lib/lockdep/tests/unlock_balance.c

    diff --git a/tools/lib/lockdep/run_tests.sh b/tools/lib/lockdep/run_tests.sh
    new file mode 100755
    index 0000000..4dd32d1
    --- /dev/null
    +++ b/tools/lib/lockdep/run_tests.sh
    @@ -0,0 +1,15 @@
    +#! /bin/bash
    +
    +make &> /dev/null
    +
    +for i in `ls tests/*.c`; do
    + testname=$(basename -s .c "$i")
    + gcc -o tests/$testname -lpthread $i liblockdep.a -Iinclude -D__USE_LIBLOCKDEP &> /dev/null
    + echo -ne "$testname... "
    + if [ $(timeout 1 ./tests/$testname | wc -l) -gt 0 ]; then
    + echo "PASSED!"
    + else
    + echo "FAILED!"
    + fi
    + rm tests/$testname
    +done
    diff --git a/tools/lib/lockdep/tests/AA.c b/tools/lib/lockdep/tests/AA.c
    new file mode 100644
    index 0000000..933d32f
    --- /dev/null
    +++ b/tools/lib/lockdep/tests/AA.c
    @@ -0,0 +1,16 @@
    +#include <liblockdep/mutex.h>
    +
    +void main(void)
    +{
    + pthread_mutex_t a, b;
    +
    + liblockdep_init();
    + liblockdep_set_thread();
    +
    + pthread_mutex_init(&a, NULL);
    + pthread_mutex_init(&b, NULL);
    +
    + pthread_mutex_lock(&a);
    + pthread_mutex_unlock(&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 0000000..9f5146b
    --- /dev/null
    +++ b/tools/lib/lockdep/tests/ABBA.c
    @@ -0,0 +1,16 @@
    +#include <liblockdep/mutex.h>
    +#include "common.h"
    +
    +void main(void)
    +{
    + pthread_mutex_t a, b;
    +
    + liblockdep_init();
    + liblockdep_set_thread();
    +
    + 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 0000000..b7435d7
    --- /dev/null
    +++ b/tools/lib/lockdep/tests/ABBCCA.c
    @@ -0,0 +1,18 @@
    +#include <liblockdep/mutex.h>
    +#include "common.h"
    +
    +void main(void)
    +{
    + pthread_mutex_t a, b, c;
    +
    + liblockdep_init();
    + liblockdep_set_thread();
    +
    + 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 0000000..2425330
    --- /dev/null
    +++ b/tools/lib/lockdep/tests/ABBCCDDA.c
    @@ -0,0 +1,20 @@
    +#include <liblockdep/mutex.h>
    +#include "common.h"
    +
    +void main(void)
    +{
    + pthread_mutex_t a, b, c, d;
    +
    + liblockdep_init();
    + liblockdep_set_thread();
    +
    + 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 0000000..2ee30fe
    --- /dev/null
    +++ b/tools/lib/lockdep/tests/ABCABC.c
    @@ -0,0 +1,18 @@
    +#include <liblockdep/mutex.h>
    +#include "common.h"
    +
    +void main(void)
    +{
    + pthread_mutex_t a, b, c;
    +
    + liblockdep_init();
    + liblockdep_set_thread();
    +
    + 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 0000000..32d19d6
    --- /dev/null
    +++ b/tools/lib/lockdep/tests/ABCDBCDA.c
    @@ -0,0 +1,20 @@
    +#include <liblockdep/mutex.h>
    +#include "common.h"
    +
    +void main(void)
    +{
    + liblockdep_pthread_mutex_t a, b, c, d;
    +
    + liblockdep_init();
    + liblockdep_set_thread();
    +
    + liblockdep_pthread_mutex_init(&a, NULL);
    + liblockdep_pthread_mutex_init(&b, NULL);
    + liblockdep_pthread_mutex_init(&c, NULL);
    + liblockdep_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 0000000..850eaca
    --- /dev/null
    +++ b/tools/lib/lockdep/tests/ABCDBDDA.c
    @@ -0,0 +1,20 @@
    +#include <liblockdep/mutex.h>
    +#include "common.h"
    +
    +void main(void)
    +{
    + pthread_mutex_t a, b, c, d;
    +
    + liblockdep_init();
    + liblockdep_set_thread();
    +
    + 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 0000000..d89e94d
    --- /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 0000000..9dfaf97
    --- /dev/null
    +++ b/tools/lib/lockdep/tests/unlock_balance.c
    @@ -0,0 +1,15 @@
    +#include <liblockdep/mutex.h>
    +
    +void main(void)
    +{
    + pthread_mutex_t a;
    +
    + liblockdep_init();
    + liblockdep_set_thread();
    +
    + pthread_mutex_init(&a, NULL);
    +
    + pthread_mutex_lock(&a);
    + pthread_mutex_unlock(&a);
    + pthread_mutex_unlock(&a);
    +}
    --
    1.8.1.2


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