diff options
author | Vitaly Buka <vitalybuka@google.com> | 2018-05-15 01:39:25 +0000 |
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committer | Vitaly Buka <vitalybuka@google.com> | 2018-05-15 01:39:25 +0000 |
commit | 3041124b68b5cabd76599248a80aee3855cd38ff (patch) | |
tree | 8c11f1b55376af81c2e2209513376b1790453608 /test | |
parent | 60f798d66f1b454504f1642da0d1353dde4bce8d (diff) |
[sanitizer] Intercept __pthread_mutex_lock and __pthread_mutex_unlock
Reviewers: eugenis, dvyukov
Subscribers: srhines, kubamracek, llvm-commits
Differential Revision: https://reviews.llvm.org/D46793
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@332320 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r-- | test/sanitizer_common/TestCases/Linux/pthread_mutex.cc | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/test/sanitizer_common/TestCases/Linux/pthread_mutex.cc b/test/sanitizer_common/TestCases/Linux/pthread_mutex.cc new file mode 100644 index 000000000..610958143 --- /dev/null +++ b/test/sanitizer_common/TestCases/Linux/pthread_mutex.cc @@ -0,0 +1,34 @@ +// RUN: %clangxx -O1 %s -o %t && %run %t +// RUN: %clangxx -O1 -DUSE_GLIBC %s -o %t && %run %t +// UNSUPPORTED: android + +#include <pthread.h> + +#ifdef USE_GLIBC +extern "C" int __pthread_mutex_lock(pthread_mutex_t *__mutex); +extern "C" int __pthread_mutex_unlock(pthread_mutex_t *__mutex); +#define LOCK __pthread_mutex_lock +#define UNLOCK __pthread_mutex_unlock +#else +#define LOCK pthread_mutex_lock +#define UNLOCK pthread_mutex_unlock +#endif + +pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER; +int x; + +static void *Start(void *arg) { + LOCK(&m); + ++x; + UNLOCK(&m); + return nullptr; +} + +int main() { + pthread_t threads[2] = {}; + for (pthread_t &t : threads) + pthread_create(&t, 0, &Start, 0); + for (pthread_t &t : threads) + pthread_join(t, 0); + return 0; +} |