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