1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
// RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t 2>&1 | FileCheck %s
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <setjmp.h>
#include <string.h>
void bar(jmp_buf env) {
volatile int x = 42;
jmp_buf env2;
memcpy(env2, env, sizeof(jmp_buf));
longjmp(env2, 42);
x++;
}
void foo(jmp_buf env) {
volatile int x = 42;
bar(env);
x++;
}
void badguy() {
pthread_mutex_t mtx;
pthread_mutex_init(&mtx, 0);
pthread_mutex_lock(&mtx);
pthread_mutex_destroy(&mtx);
}
void mymain() {
jmp_buf env;
if (setjmp(env) == 42) {
badguy();
return;
}
foo(env);
fprintf(stderr, "FAILED\n");
}
int main() {
volatile int x = 42;
mymain();
return x;
}
// CHECK-NOT: FAILED
// CHECK: WARNING: ThreadSanitizer: destroy of a locked mutex
// CHECK: #0 pthread_mutex_destroy
// CHECK: #1 badguy
// CHECK: #2 mymain
// CHECK: #3 main
|
