diff --git a/compiler-rt/lib/tsan/lit_tests/java_rwlock.cc b/compiler-rt/lib/tsan/lit_tests/java_rwlock.cc new file mode 100644 index 0000000000000000000000000000000000000000..6dab614d5d14cb66c2a7367dc01a6e225db9095a --- /dev/null +++ b/compiler-rt/lib/tsan/lit_tests/java_rwlock.cc @@ -0,0 +1,32 @@ +// RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s +#include "java.h" + +jptr varaddr; +jptr lockaddr; + +void *Thread(void *p) { + __tsan_java_mutex_read_lock(lockaddr); + *(int*)varaddr = 42; + __tsan_java_mutex_read_unlock(lockaddr); + return 0; +} + +int main() { + int const kHeapSize = 1024 * 1024; + void *jheap = malloc(kHeapSize); + __tsan_java_init((jptr)jheap, kHeapSize); + const int kBlockSize = 16; + __tsan_java_alloc((jptr)jheap, kBlockSize); + varaddr = (jptr)jheap; + lockaddr = (jptr)jheap + 8; + pthread_t th; + pthread_create(&th, 0, Thread, 0); + __tsan_java_mutex_lock(lockaddr); + *(int*)varaddr = 43; + __tsan_java_mutex_unlock(lockaddr); + pthread_join(th, 0); + __tsan_java_free((jptr)jheap, kBlockSize); + return __tsan_java_fini(); +} + +// CHECK-NOT: WARNING: ThreadSanitizer: data race