| // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t |
| // RUN: not %run %t 2>&1 | FileCheck %s |
| // |
| |
| #include <assert.h> |
| #include <stdint.h> |
| |
| struct A { |
| char a[3]; |
| int b[3]; |
| }; |
| |
| __attribute__((noinline)) void foo(int index, int len) { |
| volatile struct A str[len] __attribute__((aligned(32))); |
| assert(!(reinterpret_cast<uintptr_t>(str) & 31L)); |
| str[index].a[0] = '1'; // BOOM |
| // CHECK: ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] |
| // CHECK: WRITE of size 1 at [[ADDR]] thread T0 |
| } |
| |
| int main(int argc, char **argv) { |
| foo(10, 10); |
| return 0; |
| } |
