| Kostya Serebryany | a89a35a | 2013-03-26 08:01:37 +0000 | [diff] [blame^] | 1 | // Check that __asan_poison_memory_region works. |
| 2 | // RUN: %clangxx_asan -m64 -O0 %s -o %t && %t 2>&1 | %symbolize | FileCheck %s |
| 3 | // |
| 4 | // Check that we can disable it |
| 5 | // RUN: ASAN_OPTIONS=allow_user_poisoning=0 %t |
| 6 | |
| 7 | #include <stdlib.h> |
| 8 | |
| 9 | extern "C" void __asan_poison_memory_region(void *, size_t); |
| 10 | |
| 11 | int main(int argc, char **argv) { |
| 12 | char *x = new char[16]; |
| 13 | __asan_poison_memory_region(x, 16); |
| 14 | int res = x[argc * 10]; // BOOOM |
| 15 | // CHECK: ERROR: AddressSanitizer: use-after-poison |
| 16 | // CHECK: main{{.*}}use-after-poison.cc:[[@LINE-2]] |
| 17 | delete [] x; |
| 18 | return res; |
| 19 | } |