| 1 | //===-- Unittests for __stack_chk_fail ------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "include/llvm-libc-macros/signal-macros.h" |
| 10 | #include "src/__support/macros/sanitizer.h" |
| 11 | #include "src/compiler/__stack_chk_fail.h" |
| 12 | #include "src/string/memset.h" |
| 13 | #include "test/UnitTest/Test.h" |
| 14 | |
| 15 | TEST(LlvmLibcStackChkFail, Death) { |
| 16 | EXPECT_DEATH([] { __stack_chk_fail(); }, WITH_SIGNAL(SIGABRT)); |
| 17 | } |
| 18 | |
| 19 | // Disable the test when asan is enabled so that it doesn't immediately fail |
| 20 | // after the memset, but before the stack canary is re-checked. |
| 21 | #ifndef LIBC_HAVE_ADDRESS_SANITIZER |
| 22 | TEST(LlvmLibcStackChkFail, Smash) { |
| 23 | EXPECT_DEATH( |
| 24 | [] { |
| 25 | int arr[20]; |
| 26 | LIBC_NAMESPACE::memset(arr, 0xAA, 2001); |
| 27 | }, |
| 28 | WITH_SIGNAL(SIGABRT)); |
| 29 | } |
| 30 | #endif // LIBC_HAVE_ADDRESS_SANITIZER |
| 31 |