1// Checks that the debugging API returns correct shadow scale and offset.
2// RUN: %clangxx_asan -O %s -o %t
3// RUN: env ASAN_OPTIONS=verbosity=1 %run %t 2>&1 | FileCheck %s
4
5#include <sanitizer/asan_interface.h>
6#include <stdio.h>
7#include <stdlib.h>
8
9// printed because of verbosity=1
10// CHECK: SHADOW_SCALE: [[SCALE:[0-9]+]]
11// CHECK: SHADOW_OFFSET: [[OFFSET:[0-9]+]]
12
13int main() {
14  size_t scale, offset;
15  __asan_get_shadow_mapping(&scale, &offset);
16
17  fprintf(stderr, "scale: %lx\n", scale);
18  fprintf(stderr, "offset: %lx\n", offset);
19
20  // CHECK: scale: [[SCALE]]
21  // CHECK: offset: [[OFFSET]]
22
23  return 0;
24}
25