27 lines · cpp
1// Check that we fill malloc-ed memory correctly.2// RUN: %clangxx_hwasan %s -o %t3// RUN: %run %t | FileCheck %s --check-prefix=CHECK-04// RUN: %env_hwasan_opts=max_malloc_fill_size=20 %run %t | FileCheck %s --check-prefix=CHECK-20-be5// RUN: %env_hwasan_opts=max_malloc_fill_size=0:malloc_fill_byte=8 %run %t | FileCheck %s --check-prefix=CHECK-06// RUN: %env_hwasan_opts=max_malloc_fill_size=10:malloc_fill_byte=8 %run %t | FileCheck %s --check-prefix=CHECK-10-87// RUN: %env_hwasan_opts=max_malloc_fill_size=20:malloc_fill_byte=171 %run %t | FileCheck %s --check-prefix=CHECK-20-ab8 9#include <stdio.h>10 11int 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 printf("-");16 for (int i = 0; i <= 32; i++) {17 printf("%02x", x[i]);18 }19 printf("-\n");20 delete [] x;21}22 23// CHECK-0: -000000000000000000000000000000000000000000000000000000000000000000-24// CHECK-20-be: -bebebebebebebebebebebebebebebebebebebebe00000000000000000000000000-25// CHECK-10-8: -080808080808080808080000000000000000000000000000000000000000000000-26// CHECK-20-ab: -abababababababababababababababababababab00000000000000000000000000-27