ed51fb9a07
With native_bridge, native and emulated parts exchange data, including pointers. If tagging on native architecture is different from tagging on emulated architecture, all the pointers in the data exchange must be identified and marshalled, which is hardly feasible. Disable MTE tests with native_bridge. Bug: 135772972 Bug: 159352723 Test: bionic-unit-tests --gtest_filter=*mte* Change-Id: Icba90636173e9e71036def5302c7d0a09dd8873b
60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <sys/cdefs.h>
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#if defined(__BIONIC__)
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#include <gtest/gtest.h>
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#include <android-base/macros.h>
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#include <bionic/mte.h>
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#include "utils.h"
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__attribute__((no_sanitize("hwaddress")))
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static void test_tag_mismatch() {
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std::unique_ptr<int[]> p = std::make_unique<int[]>(4);
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p[0] = 1;
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int* mistagged_p ATTRIBUTE_UNUSED =
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reinterpret_cast<int*>(reinterpret_cast<uintptr_t>(p.get()) + (1ULL << 56));
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{
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ScopedDisableMTE x;
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{ ScopedDisableMTE y; }
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#if defined(__aarch64__)
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volatile int load ATTRIBUTE_UNUSED = *mistagged_p;
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#endif
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}
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#if defined(__aarch64__)
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if (mte_supported()) {
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EXPECT_DEATH(
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{
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volatile int load ATTRIBUTE_UNUSED = *mistagged_p;
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},
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"");
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}
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#endif
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}
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TEST(mte_test, ScopedDisableMTE) {
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// With native_bridge, native and emulated parts exchange data, including pointers.
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// This implies tagging on native and emulated architectures should match, which is
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// not the case at the moment.
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SKIP_WITH_NATIVE_BRIDGE;
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test_tag_mismatch();
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}
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#endif // __BIONIC__
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