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      1 //===-- tsan_test.cc ------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file is a part of ThreadSanitizer (TSan), a race detector.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 #include "tsan_interface.h"
     14 #include "tsan_test_util.h"
     15 #include "gtest/gtest.h"
     16 
     17 static void foo() {}
     18 static void bar() {}
     19 
     20 TEST(ThreadSanitizer, FuncCall) {
     21   ScopedThread t1, t2;
     22   MemLoc l;
     23   t1.Write1(l);
     24   t2.Call(foo);
     25   t2.Call(bar);
     26   t2.Write1(l, true);
     27   t2.Return();
     28   t2.Return();
     29 }
     30 
     31 // We use this function instead of main, as ISO C++ forbids taking the address
     32 // of main, which we need to pass inside __tsan_func_entry.
     33 int run_tests(int argc, char **argv) {
     34   TestMutexBeforeInit();  // Mutexes must be usable before __tsan_init();
     35   __tsan_init();
     36   __tsan_func_entry(__builtin_return_address(0));
     37   __tsan_func_entry((void*)((intptr_t)&run_tests + 1));
     38 
     39   testing::GTEST_FLAG(death_test_style) = "threadsafe";
     40   testing::InitGoogleTest(&argc, argv);
     41   int res = RUN_ALL_TESTS();
     42 
     43   __tsan_func_exit();
     44   __tsan_func_exit();
     45   return res;
     46 }
     47 
     48 const char *argv0;
     49 
     50 int main(int argc, char **argv) {
     51   argv0 = argv[0];
     52   return run_tests(argc, argv);
     53 }
     54