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 %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 %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 %run %t >%t.out 2>&1 |
| 8 | // RUN: FileCheck %s < %t.out |
| 9 | |
| 10 | // RUN: %clangxx_msan %s -fsanitize=memory -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1 |
| 11 | // RUN: FileCheck %s --check-prefix=CHECK-NO-FLAG < %t.out |
| 12 | |
| 13 | // RUN: %clangxx_msan -fsanitize=memory -fsanitize-memory-use-after-dtor %s -o %t && MSAN_OPTIONS=poison_in_dtor=0 %run %t >%t.out 2>&1 |
| 14 | // RUN: FileCheck %s --check-prefix=CHECK-NO-FLAG < %t.out |
| 15 | |
| 16 | #include <sanitizer/msan_interface.h> |
| 17 | #include <assert.h> |
| 18 | #include <stdio.h> |
| 19 | #include <new> |
| 20 | |
| 21 | struct Simple { |
| 22 | int x_; |
| 23 | Simple() { |
| 24 | x_ = 5; |
| 25 | } |
| 26 | ~Simple() { } |
| 27 | }; |
| 28 | |
| 29 | int main() { |
| 30 | unsigned long buf[1]; |
| 31 | assert(sizeof(Simple) <= sizeof(buf)); |
| 32 | |
| 33 | // The placement new operator forces the object to be constructed in the |
| 34 | // memory location &buf. Since objects made in this way must be explicitly |
| 35 | // destroyed, there are no implicit calls inserted that would interfere with |
| 36 | // test behavior. |
| 37 | Simple *s = new(&buf) Simple(); |
| 38 | s->~Simple(); |
| 39 | |
| 40 | if (__msan_test_shadow(s, sizeof(*s)) != -1) |
| 41 | printf("s is poisoned\n"); |
| 42 | else |
| 43 | printf("s is not poisoned\n"); |
| 44 | // CHECK: s is poisoned |
| 45 | // CHECK-NO-FLAG: s is not poisoned |
| 46 | |
| 47 | return 0; |
| 48 | } |