Pirama Arumuga Nainar | 7c91505 | 2015-04-08 08:58:29 -0700 | [diff] [blame] | 1 | // RUN: %clangxx_asan -fsized-deallocation -O0 %s -o %t |
Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 2 | // RUN: not %run %t scalar 2>&1 | FileCheck %s -check-prefix=SCALAR |
| 3 | // RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:new_delete_type_mismatch=1 not %run %t scalar 2>&1 | FileCheck %s -check-prefix=SCALAR |
| 4 | // RUN: not %run %t array 2>&1 | FileCheck %s -check-prefix=ARRAY |
| 5 | // RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:new_delete_type_mismatch=1 not %run %t array 2>&1 | FileCheck %s -check-prefix=ARRAY |
| 6 | // RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:new_delete_type_mismatch=0 %run %t scalar |
| 7 | // RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:new_delete_type_mismatch=0 %run %t array |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 8 | |
Pirama Arumuga Nainar | 7c91505 | 2015-04-08 08:58:29 -0700 | [diff] [blame] | 9 | // FIXME: the following two lines are not true after r232788. |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 10 | // Sized-delete is implemented with a weak delete() definition. |
| 11 | // Weak symbols are kind of broken on Android. |
Pirama Arumuga Nainar | 7c91505 | 2015-04-08 08:58:29 -0700 | [diff] [blame] | 12 | // XFAIL: android |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 13 | |
| 14 | #include <new> |
| 15 | #include <stdio.h> |
| 16 | #include <string> |
| 17 | |
| 18 | inline void break_optimization(void *arg) { |
| 19 | __asm__ __volatile__("" : : "r" (arg) : "memory"); |
| 20 | } |
| 21 | |
| 22 | struct S12 { |
| 23 | int a, b, c; |
| 24 | }; |
| 25 | |
| 26 | struct S20 { |
| 27 | int a, b, c, d, e; |
| 28 | }; |
| 29 | |
| 30 | struct D1 { |
| 31 | int a, b, c; |
| 32 | ~D1() { fprintf(stderr, "D1::~D1\n"); } |
| 33 | }; |
| 34 | |
| 35 | struct D2 { |
| 36 | int a, b, c, d, e; |
| 37 | ~D2() { fprintf(stderr, "D2::~D2\n"); } |
| 38 | }; |
| 39 | |
| 40 | void Del12(S12 *x) { |
| 41 | break_optimization(x); |
| 42 | delete x; |
| 43 | } |
| 44 | void Del12NoThrow(S12 *x) { |
| 45 | break_optimization(x); |
| 46 | operator delete(x, std::nothrow); |
| 47 | } |
| 48 | void Del12Ar(S12 *x) { |
| 49 | break_optimization(x); |
| 50 | delete [] x; |
| 51 | } |
| 52 | void Del12ArNoThrow(S12 *x) { |
| 53 | break_optimization(x); |
| 54 | operator delete[](x, std::nothrow); |
| 55 | } |
| 56 | |
| 57 | int main(int argc, char **argv) { |
| 58 | if (argc != 2) return 1; |
| 59 | std::string flag = argv[1]; |
| 60 | // These are correct. |
| 61 | Del12(new S12); |
| 62 | Del12NoThrow(new S12); |
| 63 | Del12Ar(new S12[100]); |
| 64 | Del12ArNoThrow(new S12[100]); |
| 65 | |
| 66 | // Here we pass wrong type of pointer to delete, |
| 67 | // but [] and nothrow variants of delete are not sized. |
| 68 | Del12Ar(reinterpret_cast<S12*>(new S20[100])); |
| 69 | Del12NoThrow(reinterpret_cast<S12*>(new S20)); |
| 70 | Del12ArNoThrow(reinterpret_cast<S12*>(new S20[100])); |
| 71 | fprintf(stderr, "OK SO FAR\n"); |
| 72 | // SCALAR: OK SO FAR |
| 73 | // ARRAY: OK SO FAR |
| 74 | if (flag == "scalar") { |
| 75 | // Here asan should bark as we are passing a wrong type of pointer |
| 76 | // to sized delete. |
| 77 | Del12(reinterpret_cast<S12*>(new S20)); |
| 78 | // SCALAR: AddressSanitizer: new-delete-type-mismatch |
| 79 | // SCALAR: object passed to delete has wrong type: |
| 80 | // SCALAR: size of the allocated type: 20 bytes; |
| 81 | // SCALAR: size of the deallocated type: 12 bytes. |
| 82 | // SCALAR: is located 0 bytes inside of 20-byte region |
| 83 | // SCALAR: SUMMARY: AddressSanitizer: new-delete-type-mismatch |
| 84 | } else if (flag == "array") { |
| 85 | D1 *d1 = reinterpret_cast<D1*>(new D2[10]); |
| 86 | break_optimization(d1); |
| 87 | delete [] d1; |
| 88 | // ARRAY-NOT: D2::~D2 |
| 89 | // ARRAY: D1::~D1 |
| 90 | // ARRAY: AddressSanitizer: new-delete-type-mismatch |
| 91 | // ARRAY: size of the allocated type: 20{{4|8}} bytes; |
| 92 | // ARRAY: size of the deallocated type: 12{{4|8}} bytes. |
| 93 | } |
| 94 | } |