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