| // RUN: %clang_hwasan %s -o %t |
| // RUN: not %run %t 40 2>&1 | FileCheck %s --check-prefix=CHECK40 |
| // RUN: not %run %t 80 2>&1 | FileCheck %s --check-prefix=CHECK80 |
| // RUN: not %run %t -30 2>&1 | FileCheck %s --check-prefix=CHECKm30 |
| // RUN: not %run %t -30 1000000 2>&1 | FileCheck %s --check-prefix=CHECKMm30 |
| // RUN: not %run %t 1000000 1000000 2>&1 | FileCheck %s --check-prefix=CHECKM |
| |
| // REQUIRES: stable-runtime |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <sanitizer/hwasan_interface.h> |
| |
| int main(int argc, char **argv) { |
| __hwasan_enable_allocator_tagging(); |
| int offset = argc < 2 ? 40 : atoi(argv[1]); |
| int size = argc < 3 ? 30 : atoi(argv[2]); |
| char * volatile x = (char*)malloc(size); |
| x[offset] = 42; |
| // CHECK40: allocated heap chunk; size: 32 offset: 8 |
| // CHECK40: is located 10 bytes to the right of 30-byte region |
| // |
| // CHECK80: allocated heap chunk; size: 32 offset: 16 |
| // CHECK80: is located 50 bytes to the right of 30-byte region |
| // |
| // CHECKm30: allocated heap chunk; size: 32 offset: 2 |
| // CHECKm30: is located 30 bytes to the left of 30-byte region |
| // |
| // CHECKMm30: is a large allocated heap chunk; size: 1003520 offset: -30 |
| // CHECKMm30: is located 30 bytes to the left of 1000000-byte region |
| // |
| // CHECKM: is a large allocated heap chunk; size: 1003520 offset: 1000000 |
| // CHECKM: is located 0 bytes to the right of 1000000-byte region |
| free(x); |
| } |
