44 lines · cpp
1// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s2#include "java.h"3 4jptr varaddr;5jptr lockaddr;6jptr varaddr2;7jptr lockaddr2;8 9void *Thread(void *p) {10 barrier_wait(&barrier);11 __tsan_java_mutex_lock(lockaddr2);12 *(int*)varaddr2 = 42;13 __tsan_java_mutex_unlock(lockaddr2);14 return 0;15}16 17int main() {18 barrier_init(&barrier, 2);19 int const kHeapSize = 1024 * 1024;20 jptr jheap = (jptr)malloc(kHeapSize + 8) + 8;21 __tsan_java_init(jheap, kHeapSize);22 const int kBlockSize = 64;23 int const kMove = 1024;24 __tsan_java_alloc(jheap, kBlockSize);25 varaddr = jheap;26 lockaddr = jheap + 46;27 varaddr2 = varaddr + kMove;28 lockaddr2 = lockaddr + kMove;29 pthread_t th;30 pthread_create(&th, 0, Thread, 0);31 __tsan_java_mutex_lock(lockaddr);32 *(int*)varaddr = 43;33 __tsan_java_mutex_unlock(lockaddr);34 __tsan_java_move(varaddr, varaddr2, kBlockSize);35 barrier_wait(&barrier);36 pthread_join(th, 0);37 __tsan_java_free(varaddr2, kBlockSize);38 fprintf(stderr, "DONE\n");39 return __tsan_java_fini();40}41 42// CHECK-NOT: WARNING: ThreadSanitizer: data race43// CHECK: DONE44