Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 1 | // RUN: %clangxx_msan %s -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 not %run %t >%t.out 2>&1 |
| 2 | // RUN: FileCheck %s < %t.out |
| 3 | |
| 4 | // RUN: %clangxx_msan %s -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 not %run %t >%t.out 2>&1 |
| 5 | // RUN: FileCheck %s < %t.out |
| 6 | |
| 7 | // RUN: %clangxx_msan %s -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 not %run %t >%t.out 2>&1 |
| 8 | // RUN: FileCheck %s < %t.out |
| 9 | |
| 10 | // RUN: %clangxx_msan %s -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -fsanitize-memory-track-origins -o %t && MSAN_OPTIONS=poison_in_dtor=1 not %run %t >%t.out 2>&1 |
| 11 | // RUN: FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
| 12 | |
| 13 | #include <sanitizer/msan_interface.h> |
| 14 | #include <assert.h> |
| 15 | #include <stdio.h> |
| 16 | #include <new> |
| 17 | |
| 18 | struct Simple { |
| 19 | int x_; |
| 20 | Simple() { |
| 21 | x_ = 5; |
| 22 | } |
| 23 | ~Simple() { |
| 24 | x_ += 1; |
| 25 | } |
| 26 | }; |
| 27 | |
| 28 | int main() { |
| 29 | unsigned long buf[1]; |
| 30 | assert(sizeof(Simple) <= sizeof(buf)); |
| 31 | |
| 32 | Simple *s = new(&buf) Simple(); |
| 33 | s->~Simple(); |
| 34 | |
| 35 | return s->x_; |
| 36 | |
| 37 | // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value |
| 38 | // CHECK: {{#0 0x.* in main.*use-after-dtor.cc:}}[[@LINE-3]] |
| 39 | |
| 40 | // CHECK-ORIGINS: Memory was marked as uninitialized |
| 41 | // CHECK-ORIGINS: {{#0 0x.* in __sanitizer_dtor_callback}} |
| 42 | // CHECK-ORIGINS: {{#1 0x.* in Simple::~Simple}} |
| 43 | |
| 44 | // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*main}} |
| 45 | } |