xref: /llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp (revision e520800eda3d9810be6c78d8056c7e384d0ace70) 
1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2 
3 #include <sanitizer/tsan_interface.h>
4 #include <stdio.h>
5 
6 namespace __tsan {
7 
8 #if (__APPLE__)
9 __attribute__((weak))
10 #endif
OnPotentiallyBlockingRegionBegin()11 void OnPotentiallyBlockingRegionBegin() {
12   printf("Enter __cxa_guard_acquire\n");
13 }
14 
15 #if (__APPLE__)
16 __attribute__((weak))
17 #endif
OnPotentiallyBlockingRegionEnd()18 void OnPotentiallyBlockingRegionEnd() { printf("Exit __cxa_guard_acquire\n"); }
19 
20 } // namespace __tsan
21 
main(int argc,char ** argv)22 int main(int argc, char **argv) {
23   // CHECK: Enter main
24   printf("Enter main\n");
25   // CHECK-NEXT: Enter __cxa_guard_acquire
26   // CHECK-NEXT: Exit __cxa_guard_acquire
27   static int s = argc;
28   (void)s;
29   // CHECK-NEXT: Exit main
30   printf("Exit main\n");
31   return 0;
32 }
33