1// RUN: %clangxx_tsan -O1 %s -o %t
2// RUN: %run %t 2>&1 | FileCheck %s
3// RUN: %run %t arg 2>&1 | FileCheck %s
4#include "java.h"
5
6jptr varaddr1_old;
7jptr varaddr2_old;
8jptr lockaddr1_old;
9jptr lockaddr2_old;
10jptr varaddr1_new;
11jptr varaddr2_new;
12jptr lockaddr1_new;
13jptr lockaddr2_new;
14
15void *Thread(void *p) {
16  sleep(1);
17  __tsan_java_mutex_lock(lockaddr1_new);
18  *(char*)varaddr1_new = 43;
19  __tsan_java_mutex_unlock(lockaddr1_new);
20  __tsan_java_mutex_lock(lockaddr2_new);
21  *(char*)varaddr2_new = 43;
22  __tsan_java_mutex_unlock(lockaddr2_new);
23  return 0;
24}
25
26int main(int argc, char **argv) {
27  int const kHeapSize = 1024 * 1024;
28  void *jheap = malloc(kHeapSize);
29  jheap = (char*)jheap + 8;
30  __tsan_java_init((jptr)jheap, kHeapSize);
31  const int kBlockSize = 64;
32  int const kMove = 32;
33  varaddr1_old = (jptr)jheap;
34  lockaddr1_old = (jptr)jheap + 1;
35  varaddr2_old = (jptr)jheap + kBlockSize - 1;
36  lockaddr2_old = (jptr)jheap + kBlockSize - 16;
37  varaddr1_new = varaddr1_old + kMove;
38  lockaddr1_new = lockaddr1_old + kMove;
39  varaddr2_new = varaddr2_old + kMove;
40  lockaddr2_new = lockaddr2_old + kMove;
41  if (argc > 1) {
42    // Move memory backwards.
43    varaddr1_old += kMove;
44    lockaddr1_old += kMove;
45    varaddr2_old += kMove;
46    lockaddr2_old += kMove;
47    varaddr1_new -= kMove;
48    lockaddr1_new -= kMove;
49    varaddr2_new -= kMove;
50    lockaddr2_new -= kMove;
51  }
52  __tsan_java_alloc(varaddr1_old, kBlockSize);
53
54  pthread_t th;
55  pthread_create(&th, 0, Thread, 0);
56
57  __tsan_java_mutex_lock(lockaddr1_old);
58  *(char*)varaddr1_old = 43;
59  __tsan_java_mutex_unlock(lockaddr1_old);
60  __tsan_java_mutex_lock(lockaddr2_old);
61  *(char*)varaddr2_old = 43;
62  __tsan_java_mutex_unlock(lockaddr2_old);
63
64  __tsan_java_move(varaddr1_old, varaddr1_new, kBlockSize);
65  pthread_join(th, 0);
66  __tsan_java_free(varaddr1_new, kBlockSize);
67  printf("DONE\n");
68  return __tsan_java_fini();
69}
70
71// CHECK-NOT: WARNING: ThreadSanitizer: data race
72// CHECK: DONE
73