1// RUN: %clangxx_asan -O0 %s -o %t
2// RUN: not %run %t A 2>&1 | FileCheck --check-prefix=CHECK-A %s
3// RUN: not %run %t B 2>&1 | FileCheck --check-prefix=CHECK-B %s
4// RUN: not %run %t C 2>&1 | FileCheck --check-prefix=CHECK-C %s
5// RUN: not %run %t D 2>&1 | FileCheck --check-prefix=CHECK-D %s
6// RUN: not %run %t E 2>&1 | FileCheck --check-prefix=CHECK-E %s
7
8// RUN: not %run %t K 2>&1 | FileCheck --check-prefix=CHECK-K %s
9// RUN: not %run %t L 2>&1 | FileCheck --check-prefix=CHECK-L %s
10// RUN: not %run %t M 2>&1 | FileCheck --check-prefix=CHECK-M %s
11// RUN: not %run %t N 2>&1 | FileCheck --check-prefix=CHECK-N %s
12// RUN: not %run %t O 2>&1 | FileCheck --check-prefix=CHECK-O %s
13
14#include <sanitizer/asan_interface.h>
15
16#include <stdlib.h>
17#include <string.h>
18int main(int argc, char **argv) {
19 if (argc != 2) return 1;
20 char *x = new char[16];
21 memset(s: x, c: 0xab, n: 16);
22 int res = 1;
23 switch (argv[1][0]) {
24 case 'A': res = __sanitizer_unaligned_load16(p: x + 15); break;
25// CHECK-A ERROR: AddressSanitizer: heap-buffer-overflow on address
26// CHECK-A: main{{.*}}unaligned_loads_and_stores.cpp:[[@LINE-2]]
27// CHECK-A: is located 0 bytes after 16-byte region
28 case 'B': res = __sanitizer_unaligned_load32(p: x + 14); break;
29// CHECK-B: main{{.*}}unaligned_loads_and_stores.cpp:[[@LINE-1]]
30 case 'C': res = __sanitizer_unaligned_load32(p: x + 13); break;
31// CHECK-C: main{{.*}}unaligned_loads_and_stores.cpp:[[@LINE-1]]
32 case 'D': res = __sanitizer_unaligned_load64(p: x + 15); break;
33// CHECK-D: main{{.*}}unaligned_loads_and_stores.cpp:[[@LINE-1]]
34 case 'E': res = __sanitizer_unaligned_load64(p: x + 9); break;
35// CHECK-E: main{{.*}}unaligned_loads_and_stores.cpp:[[@LINE-1]]
36
37 case 'K': __sanitizer_unaligned_store16(p: x + 15, x: 0); break;
38// CHECK-K ERROR: AddressSanitizer: heap-buffer-overflow on address
39// CHECK-K: main{{.*}}unaligned_loads_and_stores.cpp:[[@LINE-2]]
40// CHECK-K: is located 0 bytes after 16-byte region
41 case 'L': __sanitizer_unaligned_store32(p: x + 15, x: 0); break;
42// CHECK-L: main{{.*}}unaligned_loads_and_stores.cpp:[[@LINE-1]]
43 case 'M': __sanitizer_unaligned_store32(p: x + 13, x: 0); break;
44// CHECK-M: main{{.*}}unaligned_loads_and_stores.cpp:[[@LINE-1]]
45 case 'N': __sanitizer_unaligned_store64(p: x + 10, x: 0); break;
46// CHECK-N: main{{.*}}unaligned_loads_and_stores.cpp:[[@LINE-1]]
47 case 'O': __sanitizer_unaligned_store64(p: x + 14, x: 0); break;
48// CHECK-O: main{{.*}}unaligned_loads_and_stores.cpp:[[@LINE-1]]
49 }
50 delete[] x;
51 return res;
52}
53

source code of compiler-rt/test/asan/TestCases/unaligned_loads_and_stores.cpp