1 // Checks that the debugging API returns correct shadow scale and offset.
2 // RUN: %clangxx_asan -O %s -o %t
3 // RUN: %env_asan_opts=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:0x[0-9a-f]+]]
12 
main()13 int main() {
14   size_t scale, offset;
15   __asan_get_shadow_mapping(&scale, &offset);
16 
17   fprintf(stderr, "scale: %d\n", (int)scale);
18   fprintf(stderr, "offset: 0x%lx\n", offset);
19 
20   // CHECK: scale: [[SCALE]]
21   // CHECK: offset: [[OFFSET]]
22 
23   return 0;
24 }
25