xref: /llvm-project/compiler-rt/test/tsan/mutex_held_wrong_context.cpp (revision 1146d96096022289eea050751a39f76ac3eebcfa) 
1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2 #include "test.h"
3 
4 pthread_mutex_t mtx;
5 
Func1()6 __attribute__((noinline)) void Func1() {
7   pthread_mutex_lock(&mtx);
8   __tsan_check_no_mutexes_held();
9   pthread_mutex_unlock(&mtx);
10 }
11 
Func2()12 __attribute__((noinline)) void Func2() {
13   pthread_mutex_lock(&mtx);
14   pthread_mutex_unlock(&mtx);
15   __tsan_check_no_mutexes_held();
16 }
17 
main()18 int main() {
19   pthread_mutex_init(&mtx, NULL);
20   Func1();
21   Func2();
22   return 0;
23 }
24 
25 // CHECK: WARNING: ThreadSanitizer: mutex held in the wrong context
26 // CHECK:     {{.*}}__tsan_check_no_mutexes_held{{.*}}
27 // CHECK:     {{.*}}Func1{{.*}}
28 // CHECK:     {{.*}}main{{.*}}
29 // CHECK:   Mutex {{.*}} created at:
30 // CHECK:     {{.*}}pthread_mutex_init{{.*}}
31 // CHECK:     {{.*}}main{{.*}}
32 // CHECK: SUMMARY: ThreadSanitizer: mutex held in the wrong context {{.*}}mutex_held_wrong_context.cpp{{.*}}Func1
33 
34 // CHECK-NOT: SUMMARY: ThreadSanitizer: mutex held in the wrong context {{.*}}mutex_held_wrong_context.cpp{{.*}}Func2
35