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 jptr varaddr2;
7 jptr lockaddr2;
8
Thread(void * p)9 void *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
main()17 int 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 printf("DONE\n");
39 return __tsan_java_fini();
40 }
41
42 // CHECK-NOT: WARNING: ThreadSanitizer: data race
43 // CHECK: DONE
44