1*7c3d14c8STreehugger Robot // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s 2*7c3d14c8STreehugger Robot #include "java.h" 3*7c3d14c8STreehugger Robot 4*7c3d14c8STreehugger Robot jptr varaddr; 5*7c3d14c8STreehugger Robot jptr lockaddr; 6*7c3d14c8STreehugger Robot Thread(void * p)7*7c3d14c8STreehugger Robotvoid *Thread(void *p) { 8*7c3d14c8STreehugger Robot barrier_wait(&barrier); 9*7c3d14c8STreehugger Robot __tsan_java_mutex_read_lock(lockaddr); 10*7c3d14c8STreehugger Robot *(int*)varaddr = 42; 11*7c3d14c8STreehugger Robot __tsan_java_mutex_read_unlock(lockaddr); 12*7c3d14c8STreehugger Robot return 0; 13*7c3d14c8STreehugger Robot } 14*7c3d14c8STreehugger Robot main()15*7c3d14c8STreehugger Robotint main() { 16*7c3d14c8STreehugger Robot barrier_init(&barrier, 2); 17*7c3d14c8STreehugger Robot int const kHeapSize = 1024 * 1024; 18*7c3d14c8STreehugger Robot jptr jheap = (jptr)malloc(kHeapSize + 8) + 8; 19*7c3d14c8STreehugger Robot __tsan_java_init(jheap, kHeapSize); 20*7c3d14c8STreehugger Robot const int kBlockSize = 16; 21*7c3d14c8STreehugger Robot __tsan_java_alloc(jheap, kBlockSize); 22*7c3d14c8STreehugger Robot varaddr = jheap; 23*7c3d14c8STreehugger Robot lockaddr = jheap + 8; 24*7c3d14c8STreehugger Robot pthread_t th; 25*7c3d14c8STreehugger Robot pthread_create(&th, 0, Thread, 0); 26*7c3d14c8STreehugger Robot __tsan_java_mutex_lock(lockaddr); 27*7c3d14c8STreehugger Robot *(int*)varaddr = 43; 28*7c3d14c8STreehugger Robot __tsan_java_mutex_unlock(lockaddr); 29*7c3d14c8STreehugger Robot barrier_wait(&barrier); 30*7c3d14c8STreehugger Robot pthread_join(th, 0); 31*7c3d14c8STreehugger Robot __tsan_java_free(jheap, kBlockSize); 32*7c3d14c8STreehugger Robot fprintf(stderr, "DONE\n"); 33*7c3d14c8STreehugger Robot return __tsan_java_fini(); 34*7c3d14c8STreehugger Robot } 35*7c3d14c8STreehugger Robot 36*7c3d14c8STreehugger Robot // CHECK-NOT: WARNING: ThreadSanitizer: data race 37*7c3d14c8STreehugger Robot // CHECK: DONE 38