| 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 varaddr2; |
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| 6 | |
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| 7 | void *Thread(void *p) { |
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| 8 | barrier_wait(barrier: &barrier); |
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| 9 | *(int*)varaddr2 = 42; |
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| 10 | return 0; |
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| 11 | } |
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| 12 | |
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| 13 | int main() { |
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| 14 | barrier_init(barrier: &barrier, count: 2); |
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| 15 | int const kHeapSize = 1024 * 1024; |
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| 16 | jptr jheap = (jptr)malloc(size: kHeapSize + 8) + 8; |
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| 17 | __tsan_java_init(heap_begin: jheap, heap_size: kHeapSize); |
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| 18 | const int kBlockSize = 64; |
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| 19 | int const kMove = 1024; |
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| 20 | __tsan_java_alloc(ptr: jheap, size: kBlockSize); |
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| 21 | varaddr = jheap + 16; |
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| 22 | varaddr2 = varaddr + kMove; |
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| 23 | pthread_t th; |
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| 24 | pthread_create(newthread: &th, attr: 0, start_routine: Thread, arg: 0); |
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| 25 | *(int*)varaddr = 43; |
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| 26 | __tsan_java_move(src: varaddr, dst: varaddr2, size: kBlockSize); |
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| 27 | barrier_wait(barrier: &barrier); |
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| 28 | pthread_join(th: th, thread_return: 0); |
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| 29 | __tsan_java_free(ptr: varaddr2, size: kBlockSize); |
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| 30 | fprintf(stderr, format: "DONE\n" ); |
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| 31 | return __tsan_java_fini(); |
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| 32 | } |
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| 33 | |
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| 34 | // Note: there is a race on the moved object (which we used to detect), |
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| 35 | // but now __tsan_java_move resets the object shadow, so we don't detect it anymore. |
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| 36 | // CHECK-NOT: WARNING: ThreadSanitizer: data race |
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| 37 | // CHECK: DONE |
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| 38 | |
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