blob: 18de9d7057f784478b65bc57e2b53975b73efa7e (
plain)
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
|
// Test indirect call wrapping in MemorySanitizer runtime.
// RUN: %clangxx_msan -O0 -g -rdynamic %s -o %t
// RUN: MSAN_OPTIONS=wrap_indirect_calls=zzzwrapper %t
#include <assert.h>
#include <pthread.h>
#include <stdio.h>
#include <stdint.h>
bool done;
void *ThreadFn(void *) {
printf("bad threadfn\n");
return 0;
}
void *ThreadFn2(void *) {
printf("good threadfn\n");
done = true;
return 0;
}
// ThreadFn is called indirectly from a wrapper function in MSan rtl and
// is subject to indirect call wrapping (it could be an native-to-translated
// edge).
extern "C" uintptr_t zzzwrapper(uintptr_t f) {
if (f == (uintptr_t)ThreadFn)
return (uintptr_t)&ThreadFn2;
return f;
}
int main(void) {
pthread_t t;
pthread_create(&t, 0, ThreadFn, 0);
pthread_join(t, 0);
assert(done);
return 0;
}
|
