1 // RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s 2 #include "java.h" 3 4 int const kHeapSize = 1024 * 1024; 5 stress(jptr addr)6void stress(jptr addr) { 7 for (jptr sz = 8; sz <= 32; sz <<= 1) { 8 for (jptr i = 0; i < kHeapSize / 4 / sz; i++) { 9 __tsan_java_alloc(addr + i * sz, sz); 10 } 11 __tsan_java_move(addr, addr + kHeapSize / 2, kHeapSize / 4); 12 __tsan_java_free(addr + kHeapSize / 2, kHeapSize / 4); 13 } 14 } 15 Thread(void * p)16void *Thread(void *p) { 17 stress((jptr)p); 18 return 0; 19 } 20 main()21int main() { 22 jptr jheap = (jptr)malloc(kHeapSize); 23 __tsan_java_init(jheap, kHeapSize); 24 pthread_t th; 25 pthread_create(&th, 0, Thread, (void*)(jheap + kHeapSize / 4)); 26 stress(jheap); 27 pthread_join(th, 0); 28 printf("OK\n"); 29 return __tsan_java_fini(); 30 } 31 32 // CHECK-NOT: WARNING: ThreadSanitizer: data race 33