1 // RUN: %clangxx_tsan %s -o %t 2 // RUN: not %run %t 2>&1 | FileCheck %s 3 // RUN: %env_tsan_opts=detect_deadlocks=1 not %run %t 2>&1 | FileCheck %s 4 // RUN: %env_tsan_opts=detect_deadlocks=0 %run %t 2>&1 | FileCheck %s --check-prefix=DISABLED 5 // RUN: echo "deadlock:main" > %t.supp 6 // RUN: %env_tsan_opts=suppressions='%t.supp' %run %t 2>&1 | FileCheck %s --check-prefix=DISABLED 7 // RUN: echo "deadlock:zzzz" > %t.supp 8 // RUN: %env_tsan_opts=suppressions='%t.supp' not %run %t 2>&1 | FileCheck %s 9 #include <pthread.h> 10 #include <stdio.h> 11 12 int main() { 13 pthread_mutex_t mu1, mu2; 14 pthread_mutex_init(&mu1, NULL); 15 pthread_mutex_init(&mu2, NULL); 16 17 // mu1 => mu2 18 pthread_mutex_lock(&mu1); 19 pthread_mutex_lock(&mu2); 20 pthread_mutex_unlock(&mu2); 21 pthread_mutex_unlock(&mu1); 22 23 // mu2 => mu1 24 pthread_mutex_lock(&mu2); 25 pthread_mutex_lock(&mu1); 26 // CHECK: ThreadSanitizer: lock-order-inversion (potential deadlock) 27 // DISABLED-NOT: ThreadSanitizer 28 // DISABLED: PASS 29 pthread_mutex_unlock(&mu1); 30 pthread_mutex_unlock(&mu2); 31 32 pthread_mutex_destroy(&mu1); 33 pthread_mutex_destroy(&mu2); 34 fprintf(stderr, "PASS\n"); 35 } 36
