38 lines · cpp
1// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s2#include "java.h"3 4jptr varaddr;5jptr varaddr2;6 7void *Thread(void *p) {8 barrier_wait(&barrier);9 *(int*)varaddr2 = 42;10 return 0;11}12 13int main() {14 barrier_init(&barrier, 2);15 int const kHeapSize = 1024 * 1024;16 jptr jheap = (jptr)malloc(kHeapSize + 8) + 8;17 __tsan_java_init(jheap, kHeapSize);18 const int kBlockSize = 64;19 int const kMove = 1024;20 __tsan_java_alloc(jheap, kBlockSize);21 varaddr = jheap + 16;22 varaddr2 = varaddr + kMove;23 pthread_t th;24 pthread_create(&th, 0, Thread, 0);25 *(int*)varaddr = 43;26 __tsan_java_move(varaddr, varaddr2, kBlockSize);27 barrier_wait(&barrier);28 pthread_join(th, 0);29 __tsan_java_free(varaddr2, kBlockSize);30 fprintf(stderr, "DONE\n");31 return __tsan_java_fini();32}33 34// Note: there is a race on the moved object (which we used to detect),35// but now __tsan_java_move resets the object shadow, so we don't detect it anymore.36// CHECK-NOT: WARNING: ThreadSanitizer: data race37// CHECK: DONE38