1 | // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t |
2 | // RUN: not %run %t 2>&1 | FileCheck %s |
3 | // |
4 | // REQUIRES: stable-runtime |
5 | |
6 | #include <assert.h> |
7 | #include <stdint.h> |
8 | |
9 | __attribute__((noinline)) void foo(int index, int len) { |
10 | if (index > len) { |
11 | char str[len]; |
12 | assert(!(reinterpret_cast<uintptr_t>(str) & 31L)); |
13 | str[index] = '1'; // BOOM |
14 | // CHECK: ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] |
15 | // CHECK: WRITE of size 1 at [[ADDR]] thread T0 |
16 | } |
17 | } |
18 | |
19 | int main(int argc, char **argv) { |
20 | foo(index: 33, len: 10); |
21 | return 0; |
22 | } |
23 | |