1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2*bcaeed49SFangrui Song #include "java.h"
3*bcaeed49SFangrui Song
4*bcaeed49SFangrui Song jptr varaddr;
5*bcaeed49SFangrui Song jptr lockaddr;
6*bcaeed49SFangrui Song jptr varaddr2;
7*bcaeed49SFangrui Song jptr lockaddr2;
8*bcaeed49SFangrui Song
Thread(void * p)9*bcaeed49SFangrui Song void *Thread(void *p) {
10*bcaeed49SFangrui Song barrier_wait(&barrier);
11*bcaeed49SFangrui Song __tsan_java_mutex_lock(lockaddr2);
12*bcaeed49SFangrui Song *(int*)varaddr2 = 42;
13*bcaeed49SFangrui Song __tsan_java_mutex_unlock(lockaddr2);
14*bcaeed49SFangrui Song return 0;
15*bcaeed49SFangrui Song }
16*bcaeed49SFangrui Song
main()17*bcaeed49SFangrui Song int main() {
18*bcaeed49SFangrui Song barrier_init(&barrier, 2);
19*bcaeed49SFangrui Song int const kHeapSize = 1024 * 1024;
20*bcaeed49SFangrui Song jptr jheap = (jptr)malloc(kHeapSize + 8) + 8;
21*bcaeed49SFangrui Song __tsan_java_init(jheap, kHeapSize);
22*bcaeed49SFangrui Song const int kBlockSize = 64;
23*bcaeed49SFangrui Song int const kMove = 1024;
24*bcaeed49SFangrui Song __tsan_java_alloc(jheap, kBlockSize);
25*bcaeed49SFangrui Song varaddr = jheap;
26*bcaeed49SFangrui Song lockaddr = jheap + 46;
27*bcaeed49SFangrui Song varaddr2 = varaddr + kMove;
28*bcaeed49SFangrui Song lockaddr2 = lockaddr + kMove;
29*bcaeed49SFangrui Song pthread_t th;
30*bcaeed49SFangrui Song pthread_create(&th, 0, Thread, 0);
31*bcaeed49SFangrui Song __tsan_java_mutex_lock(lockaddr);
32*bcaeed49SFangrui Song *(int*)varaddr = 43;
33*bcaeed49SFangrui Song __tsan_java_mutex_unlock(lockaddr);
34*bcaeed49SFangrui Song __tsan_java_move(varaddr, varaddr2, kBlockSize);
35*bcaeed49SFangrui Song barrier_wait(&barrier);
36*bcaeed49SFangrui Song pthread_join(th, 0);
37*bcaeed49SFangrui Song __tsan_java_free(varaddr2, kBlockSize);
38*bcaeed49SFangrui Song fprintf(stderr, "DONE\n");
39*bcaeed49SFangrui Song return __tsan_java_fini();
40*bcaeed49SFangrui Song }
41*bcaeed49SFangrui Song
42*bcaeed49SFangrui Song // CHECK-NOT: WARNING: ThreadSanitizer: data race
43*bcaeed49SFangrui Song // CHECK: DONE
44