From e486af700c822704d24f50a875c0bb0bdda18052 Mon Sep 17 00:00:00 2001 From: Evan Brown Date: Mon, 24 Jun 2024 14:53:09 -0700 Subject: Add an internal API to get a poisoned pointer. The motivation is to make destroyed/moved-from objects cause crashes when they are accessed. PiperOrigin-RevId: 646229564 Change-Id: I68d9c189b542df0933af08f5ad63dc1f5764d856 --- absl/base/internal/poison_test.cc | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 absl/base/internal/poison_test.cc (limited to 'absl/base/internal/poison_test.cc') diff --git a/absl/base/internal/poison_test.cc b/absl/base/internal/poison_test.cc new file mode 100644 index 00000000..ee72c177 --- /dev/null +++ b/absl/base/internal/poison_test.cc @@ -0,0 +1,39 @@ +// Copyright 2024 The Abseil Authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// https://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "absl/base/internal/poison.h" + +#include + +#include "gtest/gtest.h" +#include "absl/base/config.h" + +namespace absl { +ABSL_NAMESPACE_BEGIN +namespace base_internal { +namespace { + +TEST(PoisonTest, CrashesOnDereference) { +#ifdef __ANDROID__ + GTEST_SKIP() << "On Android, poisoned pointer dereference times out instead " + "of crashing."; +#endif + void* poisoned_ptr = get_poisoned_pointer(); + EXPECT_DEATH_IF_SUPPORTED(std::cout << *static_cast(poisoned_ptr), ""); +} + +} // namespace +} // namespace base_internal +ABSL_NAMESPACE_END +} // namespace absl -- cgit v1.2.3