1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s 2 #include "java.h" 3 4 jptr varaddr; 5 jptr lockaddr; 6 7 void *Thread(void *p) { 8 barrier_wait(&barrier); 9 __tsan_java_mutex_lock(lockaddr); 10 *(int*)varaddr = 42; 11 __tsan_java_mutex_unlock(lockaddr); 12 return 0; 13 } 14 15 int main() { 16 barrier_init(&barrier, 2); 17 int const kHeapSize = 1024 * 1024; 18 jptr jheap = (jptr)malloc(kHeapSize + 8) + 8; 19 __tsan_java_init(jheap, kHeapSize); 20 const int kBlockSize = 16; 21 __tsan_java_alloc(jheap, kBlockSize); 22 varaddr = jheap; 23 lockaddr = jheap + 8; 24 pthread_t th; 25 pthread_create(&th, 0, Thread, 0); 26 __tsan_java_mutex_lock(lockaddr); 27 *(int*)varaddr = 43; 28 __tsan_java_mutex_unlock(lockaddr); 29 barrier_wait(&barrier); 30 pthread_join(th, 0); 31 __tsan_java_free(jheap, kBlockSize); 32 fprintf(stderr, "DONE\n"); 33 return __tsan_java_fini(); 34 } 35 36 // CHECK-NOT: WARNING: ThreadSanitizer: data race 37 // CHECK: DONE 38
