36 lines · c
1// RUN: %clangxx_tsan %s -o %t2// RUN: not %run %t 2>&1 | FileCheck %s3// RUN: %env_tsan_opts=detect_deadlocks=1 not %run %t 2>&1 | FileCheck %s4// RUN: %env_tsan_opts=detect_deadlocks=0 %run %t 2>&1 | FileCheck %s --check-prefix=DISABLED5// RUN: echo "deadlock:main" > %t.supp6// RUN: %env_tsan_opts=suppressions='%t.supp' %run %t 2>&1 | FileCheck %s --check-prefix=DISABLED7// RUN: echo "deadlock:zzzz" > %t.supp8// RUN: %env_tsan_opts=suppressions='%t.supp' not %run %t 2>&1 | FileCheck %s9#include <pthread.h>10#include <stdio.h>11 12int main() {13 pthread_mutex_t mu1, mu2;14 pthread_mutex_init(&mu1, NULL);15 pthread_mutex_init(&mu2, NULL);16 17 // mu1 => mu218 pthread_mutex_lock(&mu1);19 pthread_mutex_lock(&mu2);20 pthread_mutex_unlock(&mu2);21 pthread_mutex_unlock(&mu1);22 23 // mu2 => mu124 pthread_mutex_lock(&mu2);25 pthread_mutex_lock(&mu1);26 // CHECK: ThreadSanitizer: lock-order-inversion (potential deadlock)27 // DISABLED-NOT: ThreadSanitizer28 // DISABLED: PASS29 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