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50 lines
815 B
50 lines
815 B
4 months ago
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// RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t 2>&1 | FileCheck %s
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <setjmp.h>
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void bar(jmp_buf env) {
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volatile int x = 42;
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longjmp(env, 42);
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x++;
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}
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void foo(jmp_buf env) {
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volatile int x = 42;
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bar(env);
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x++;
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}
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void badguy() {
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pthread_mutex_t mtx;
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pthread_mutex_init(&mtx, 0);
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pthread_mutex_lock(&mtx);
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pthread_mutex_destroy(&mtx);
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}
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void mymain() {
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jmp_buf env;
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if (setjmp(env) == 42) {
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badguy();
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return;
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}
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foo(env);
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fprintf(stderr, "FAILED\n");
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}
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int main() {
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volatile int x = 42;
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mymain();
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return x;
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}
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// CHECK-NOT: FAILED
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// CHECK: WARNING: ThreadSanitizer: destroy of a locked mutex
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// CHECK: #0 pthread_mutex_destroy
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// CHECK: #1 badguy
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// CHECK: #2 mymain
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// CHECK: #3 main
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