1 | // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s |
2 | #include "java.h" |
3 | |
4 | jptr varaddr; |
5 | jptr varaddr2; |
6 | |
7 | void *Thread(void *p) { |
8 | barrier_wait(barrier: &barrier); |
9 | *(int*)varaddr2 = 42; |
10 | return 0; |
11 | } |
12 | |
13 | int main() { |
14 | barrier_init(barrier: &barrier, count: 2); |
15 | int const kHeapSize = 1024 * 1024; |
16 | jptr jheap = (jptr)malloc(size: kHeapSize + 8) + 8; |
17 | __tsan_java_init(heap_begin: jheap, heap_size: kHeapSize); |
18 | const int kBlockSize = 64; |
19 | int const kMove = 1024; |
20 | __tsan_java_alloc(ptr: jheap, size: kBlockSize); |
21 | varaddr = jheap + 16; |
22 | varaddr2 = varaddr + kMove; |
23 | pthread_t th; |
24 | pthread_create(newthread: &th, attr: 0, start_routine: Thread, arg: 0); |
25 | *(int*)varaddr = 43; |
26 | __tsan_java_move(src: varaddr, dst: varaddr2, size: kBlockSize); |
27 | barrier_wait(barrier: &barrier); |
28 | pthread_join(th: th, thread_return: 0); |
29 | __tsan_java_free(ptr: varaddr2, size: kBlockSize); |
30 | fprintf(stderr, format: "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 race |
37 | // CHECK: DONE |
38 | |