1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2 #include "java.h"
3
4 jptr varaddr;
5 jptr varaddr2;
6
Thread(void * p)7 void *Thread(void *p) {
8 sleep(1);
9 *(int*)varaddr2 = 42;
10 return 0;
11 }
12
main()13 int main() {
14 int const kHeapSize = 1024 * 1024;
15 jptr jheap = (jptr)malloc(kHeapSize + 8) + 8;
16 __tsan_java_init(jheap, kHeapSize);
17 const int kBlockSize = 64;
18 int const kMove = 1024;
19 __tsan_java_alloc(jheap, kBlockSize);
20 varaddr = jheap + 16;
21 varaddr2 = varaddr + kMove;
22 pthread_t th;
23 pthread_create(&th, 0, Thread, 0);
24 *(int*)varaddr = 43;
25 __tsan_java_move(varaddr, varaddr2, kBlockSize);
26 pthread_join(th, 0);
27 __tsan_java_free(varaddr2, kBlockSize);
28 fprintf(stderr, "DONE\n");
29 return __tsan_java_fini();
30 }
31
32 // CHECK: WARNING: ThreadSanitizer: data race
33 // CHECK: DONE
34