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
|
// RUN: %clangxx_asan -O0 %s -o %t -mllvm -asan-detect-invalid-pointer-pair
// RUN: %env_asan_opts=detect_invalid_pointer_pairs=2 %run %t
#include <assert.h>
#include <stdlib.h>
int bar(char *p, char *q) {
return p - q;
}
char global[10000] = {};
int main() {
// Heap allocated memory.
char *p = (char *)malloc(42);
int r = bar(p, p + 20);
free(p);
// Global variable.
bar(&global[0], &global[100]);
bar(&global[1000], &global[9000]);
bar(&global[500], &global[10]);
bar(&global[0], &global[10000]);
// Stack variable.
char stack[10000];
bar(&stack[0], &stack[100]);
bar(&stack[1000], &stack[9000]);
bar(&stack[500], &stack[10]);
return 0;
}
|
