1 // Check that we fill malloc-ed memory correctly.
2 // RUN: %clangxx_hwasan %s -o %t
3 // RUN: %run %t | FileCheck %s
4 // RUN: %env_hwasan_opts=max_malloc_fill_size=10:malloc_fill_byte=8 %run %t | FileCheck %s --check-prefix=CHECK-10-8
5 // RUN: %env_hwasan_opts=max_malloc_fill_size=20:malloc_fill_byte=171 %run %t | FileCheck %s --check-prefix=CHECK-20-ab
6 
7 #include <stdio.h>
8 
9 #include "utils.h"
10 
11 int main(int argc, char **argv) {
12   // With asan allocator this makes sure we get memory from mmap.
13   static const int kSize = 1 << 25;
14   unsigned char *x = new unsigned char[kSize];
15   untag_printf("-");
16   for (int i = 0; i <= 32; i++) {
17     untag_printf("%02x", x[i]);
18   }
19   untag_printf("-\n");
20   delete [] x;
21 }
22 
23 // CHECK: -bebebebebebebebebebebebebebebebebebebebebebebebebebebebebebebebebe-
24 // CHECK-10-8: -080808080808080808080000000000000000000000000000000000000000000000-
25 // CHECK-20-ab: -abababababababababababababababababababab00000000000000000000000000-
26