java_lock_move.cc revision 2d1fdb26e458c4ddc04155c1d421bced3ba90cd0 
1// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2#include "java.h"
3
4jptr varaddr;
5jptr lockaddr;
6jptr varaddr2;
7jptr lockaddr2;
8
9void *Thread(void *p) {
10  sleep(1);
11  __tsan_java_mutex_lock(lockaddr2);
12  *(int*)varaddr2 = 42;
13  __tsan_java_mutex_unlock(lockaddr2);
14  return 0;
15}
16
17int main() {
18  int const kHeapSize = 1024 * 1024;
19  void *jheap = malloc(kHeapSize);
20  __tsan_java_init((jptr)jheap, kHeapSize);
21  const int kBlockSize = 64;
22  int const kMove = 1024;
23  __tsan_java_alloc((jptr)jheap, kBlockSize);
24  varaddr = (jptr)jheap;
25  lockaddr = (jptr)jheap + 46;
26  varaddr2 = varaddr + kMove;
27  lockaddr2 = lockaddr + kMove;
28  pthread_t th;
29  pthread_create(&th, 0, Thread, 0);
30  __tsan_java_mutex_lock(lockaddr);
31  *(int*)varaddr = 43;
32  __tsan_java_mutex_unlock(lockaddr);
33  __tsan_java_move(varaddr, varaddr2, kBlockSize);
34  pthread_join(th, 0);
35  __tsan_java_free(varaddr2, kBlockSize);
36  printf("OK\n");
37  return __tsan_java_fini();
38}
39
40// CHECK-NOT: WARNING: ThreadSanitizer: data race
41