36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
// RUN: %clangxx_tsan %s -o %t
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// RUN: not %run %t 2>&1 | FileCheck %s
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// RUN: %env_tsan_opts=detect_deadlocks=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %env_tsan_opts=detect_deadlocks=0 %run %t 2>&1 | FileCheck %s --check-prefix=DISABLED
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// RUN: echo "deadlock:main" > %t.supp
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// RUN: %env_tsan_opts=suppressions='%t.supp' %run %t 2>&1 | FileCheck %s --check-prefix=DISABLED
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// RUN: echo "deadlock:zzzz" > %t.supp
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// RUN: %env_tsan_opts=suppressions='%t.supp' not %run %t 2>&1 | FileCheck %s
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#include <pthread.h>
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#include <stdio.h>
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int main() {
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pthread_mutex_t mu1, mu2;
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pthread_mutex_init(&mu1, NULL);
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pthread_mutex_init(&mu2, NULL);
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// mu1 => mu2
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pthread_mutex_lock(&mu1);
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pthread_mutex_lock(&mu2);
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pthread_mutex_unlock(&mu2);
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pthread_mutex_unlock(&mu1);
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// mu2 => mu1
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pthread_mutex_lock(&mu2);
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pthread_mutex_lock(&mu1);
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// CHECK: ThreadSanitizer: lock-order-inversion (potential deadlock)
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// DISABLED-NOT: ThreadSanitizer
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// DISABLED: PASS
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pthread_mutex_unlock(&mu1);
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pthread_mutex_unlock(&mu2);
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pthread_mutex_destroy(&mu1);
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pthread_mutex_destroy(&mu2);
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fprintf(stderr, "PASS\n");
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}
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