| 1 | // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t |
|---|---|
| 2 | // RUN: %clangxx_asan -O3 -mllvm -asan-instrument-dynamic-allocas %s -o %t |
| 3 | // RUN: %run %t 2>&1 |
| 4 | // |
| 5 | // MSVC does not support asan-instrument-dynamic-allocas yet |
| 6 | // UNSUPPORTED: msvc |
| 7 | |
| 8 | #include "sanitizer/asan_interface.h" |
| 9 | #include <assert.h> |
| 10 | #include <stdint.h> |
| 11 | |
| 12 | __attribute__((noinline)) void foo(int index, int len) { |
| 13 | volatile char str[len] __attribute__((aligned(32))); |
| 14 | assert(!(reinterpret_cast<uintptr_t>(str) & 31L)); |
| 15 | char *q = (char *)__asan_region_is_poisoned(beg: (char *)str, size: 64); |
| 16 | assert(q && ((q - str) == index)); |
| 17 | } |
| 18 | |
| 19 | int main(int argc, char **argv) { |
| 20 | for (int i = 1; i < 33; ++i) |
| 21 | foo(index: i, len: i); |
| 22 | |
| 23 | for (int i = 1; i < 33; ++i) |
| 24 | foo(index: i, len: i); |
| 25 | |
| 26 | return 0; |
| 27 | } |
| 28 |