add death test

Author: nickdesaulniers

libc/test/src/CMakeLists.txt

@@ -60,8 +60,9 @@ if(NOT LLVM_LIBC_FULL_BUILD)
   return()
 endif()
 
-add_subdirectory(dirent)
 add_subdirectory(assert)
+add_subdirectory(compiler)
+add_subdirectory(dirent)
 add_subdirectory(network)
 add_subdirectory(setjmp)
 add_subdirectory(signal)

libc/test/src/compiler/CMakeLists.txt

@@ -0,0 +1,11 @@
+add_custom_target(libc_stack_chk_guard_unittests)
+
+add_libc_unittest(
+  stack_chk_guard_test
+  SUITE
+    libc_stack_chk_guard_unittests
+  SRCS
+    stack_chk_guard_test.cpp
+  DEPENDS
+    libc.src.compiler.__stack_chk_fail
+  )

libc/test/src/compiler/stack_chk_guard_test.cpp

@@ -0,0 +1,16 @@
+//===-- Unittests for assert ----------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm-libc-macros/signal-macros.h"
+#include "src/compiler/__stack_chk_fail.h"
+#include "test/UnitTest/Test.h"
+
+TEST(LlvmLibcStackChkFail, Death) {
+  EXPECT_DEATH([] { LIBC_NAMESPACE::__stack_chk_fail(); },
+               WITH_SIGNAL(SIGABRT));
+}