compiler-rt/test/tsan/java_finalizer.cpp

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