| 1 | // REQUIRES: gwp_asan |
|---|---|
| 2 | // RUN: %clangxx_gwp_asan %s -o %t |
| 3 | // RUN: %expect_crash %run %t 2>&1 | FileCheck %s |
| 4 | |
| 5 | // CHECK: GWP-ASan detected a memory error |
| 6 | // CHECK: Buffer Underflow at 0x{{[a-f0-9]+}} (1 byte to the left |
| 7 | // CHECK-SAME: of a {{[1-9][0-9]*}}-byte allocation |
| 8 | |
| 9 | #include <cstdlib> |
| 10 | |
| 11 | #include "page_size.h" |
| 12 | |
| 13 | int main() { |
| 14 | char *Ptr = reinterpret_cast<char *>(malloc(pageSize())); |
| 15 | volatile char x = *(Ptr - 1); |
| 16 | return 0; |
| 17 | } |
| 18 |