blob: bed66fb621db0c227a7686c597403689d605c90a (
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
40
41
42
43
44
45
46
47
48
49
|
// RUN: %clangxx_msan %s -O0 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
// RUN: %clangxx_msan %s -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
// RUN: %clangxx_msan %s -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1
#include <sanitizer/msan_interface.h>
#include <assert.h>
class Base {
public:
int *x_ptr;
Base(int *y_ptr) {
// store value of subclass member
x_ptr = y_ptr;
}
virtual ~Base();
};
class Derived : public Base {
public:
int y;
Derived():Base(&y) {
y = 10;
}
~Derived();
};
Base::~Base() {
// ok access its own member
assert(__msan_test_shadow(&this->x_ptr, sizeof(this->x_ptr)) == -1);
// bad access subclass member
assert(__msan_test_shadow(this->x_ptr, sizeof(*this->x_ptr)) != -1);
}
Derived::~Derived() {
// ok to access its own members
assert(__msan_test_shadow(&this->y, sizeof(this->y)) == -1);
// ok access base class members
assert(__msan_test_shadow(&this->x_ptr, sizeof(this->x_ptr)) == -1);
}
int main() {
Derived *d = new Derived();
assert(__msan_test_shadow(&d->x_ptr, sizeof(d->x_ptr)) == -1);
d->~Derived();
assert(__msan_test_shadow(&d->x_ptr, sizeof(d->x_ptr)) != -1);
return 0;
}
|
