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