From 878f968eeb852383ff79dc3f181db24e5b52fd75 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Thu, 13 Jun 2013 18:41:19 -0400 Subject: [PATCH] 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 Signed-off-by: Peter Zijlstra 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 --- tools/lib/lockdep/run_tests.sh | 27 ++++++++++++++++++++++++ tools/lib/lockdep/tests/AA.c | 13 ++++++++++++ tools/lib/lockdep/tests/ABBA.c | 13 ++++++++++++ tools/lib/lockdep/tests/ABBCCA.c | 15 +++++++++++++ tools/lib/lockdep/tests/ABBCCDDA.c | 17 +++++++++++++++ tools/lib/lockdep/tests/ABCABC.c | 15 +++++++++++++ tools/lib/lockdep/tests/ABCDBCDA.c | 17 +++++++++++++++ tools/lib/lockdep/tests/ABCDBDDA.c | 17 +++++++++++++++ tools/lib/lockdep/tests/common.h | 12 +++++++++++ tools/lib/lockdep/tests/unlock_balance.c | 12 +++++++++++ 10 files changed, 158 insertions(+) create mode 100644 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 100644 index 000000000000..5334ad9d39b7 --- /dev/null +++ b/tools/lib/lockdep/run_tests.sh @@ -0,0 +1,27 @@ +#! /bin/bash + +make &> /dev/null + +for i in `ls tests/*.c`; do + testname=$(basename -s .c "$i") + gcc -o tests/$testname -pthread -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/$testname +done + +for i in `ls tests/*.c`; do + testname=$(basename -s .c "$i") + gcc -o tests/$testname -pthread -lpthread -Iinclude $i &> /dev/null + echo -ne "(PRELOAD) $testname... " + if [ $(timeout 1 ./lockdep ./tests/$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 000000000000..0f782ff404ac --- /dev/null +++ b/tools/lib/lockdep/tests/AA.c @@ -0,0 +1,13 @@ +#include + +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 +#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 +#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 +#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 +#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 +#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 +#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 + +void main(void) +{ + pthread_mutex_t a; + + pthread_mutex_init(&a, NULL); + + pthread_mutex_lock(&a); + pthread_mutex_unlock(&a); + pthread_mutex_unlock(&a); +} -- 2.39.2