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150
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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);
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11 __tsan_java_mutex_lock(lockaddr2);
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12 *(int*)varaddr2 = 42;
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13 __tsan_java_mutex_unlock(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, 2);
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19 int const kHeapSize = 1024 * 1024;
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20 jptr jheap = (jptr)malloc(kHeapSize + 8) + 8;
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21 __tsan_java_init(jheap, 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(jheap, 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(&th, 0, Thread, 0);
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31 __tsan_java_mutex_lock(lockaddr);
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32 *(int*)varaddr = 43;
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33 __tsan_java_mutex_unlock(lockaddr);
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34 __tsan_java_move(varaddr, varaddr2, kBlockSize);
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35 barrier_wait(&barrier);
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36 pthread_join(th, 0);
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37 __tsan_java_free(varaddr2, kBlockSize);
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38 fprintf(stderr, "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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