1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2 #include "java.h"
3
4 int const kHeapSize = 1024 * 1024;
5
stress(jptr addr)6 void stress(jptr addr) {
7 for (jptr sz = 8; sz <= 32; sz <<= 1) {
8 for (jptr i = 0; i < kHeapSize / 4 / sz; i++) {
9 __tsan_java_alloc(addr + i * sz, sz);
10 }
11 __tsan_java_move(addr, addr + kHeapSize / 2, kHeapSize / 4);
12 __tsan_java_free(addr + kHeapSize / 2, kHeapSize / 4);
13 }
14 }
15
Thread(void * p)16 void *Thread(void *p) {
17 stress((jptr)p);
18 return 0;
19 }
20
main()21 int main() {
22 jptr jheap = (jptr)malloc(kHeapSize + 8) + 8;
23 __tsan_java_init(jheap, kHeapSize);
24 pthread_t th;
25 pthread_create(&th, 0, Thread, (void*)(jheap + kHeapSize / 4));
26 stress(jheap);
27 pthread_join(th, 0);
28 if (__tsan_java_fini() != 0) {
29 fprintf(stderr, "FAILED\n");
30 return 1;
31 }
32 fprintf(stderr, "DONE\n");
33 return 0;
34 }
35
36 // CHECK-NOT: WARNING: ThreadSanitizer: data race
37 // CHECK-NOT: FAILED
38 // CHECK: DONE
39