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