/*
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* Copyright (C) 2014 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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#ifndef ART_RUNTIME_VERIFY_OBJECT_H_
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#define ART_RUNTIME_VERIFY_OBJECT_H_
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#include <stdint.h>
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#include "base/macros.h"
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#include "obj_ptr.h"
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namespace art {
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namespace mirror {
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class Class;
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class Object;
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} // namespace mirror
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// How we want to sanity check the heap's correctness.
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enum VerifyObjectMode {
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kVerifyObjectModeDisabled, // Heap verification is disabled.
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kVerifyObjectModeFast, // Sanity heap accesses quickly by using VerifyClassClass.
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kVerifyObjectModeAll // Sanity heap accesses thoroughly.
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};
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enum VerifyObjectFlags {
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kVerifyNone = 0x0,
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// Verify self when we are doing an operation.
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kVerifyThis = 0x1,
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// Verify reads from objects.
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kVerifyReads = 0x2,
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// Verify writes to objects.
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kVerifyWrites = 0x4,
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// Verify all things.
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kVerifyAll = kVerifyThis | kVerifyReads | kVerifyWrites,
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};
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static constexpr VerifyObjectFlags kDefaultVerifyFlags = kVerifyNone;
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static constexpr VerifyObjectMode kVerifyObjectSupport =
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kDefaultVerifyFlags != 0 ? kVerifyObjectModeFast : kVerifyObjectModeDisabled;
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// Implements the actual object checks.
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void VerifyObjectImpl(ObjPtr<mirror::Object> obj) NO_THREAD_SAFETY_ANALYSIS;
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// Is a front to optimize out any calls if no verification is enabled.
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ALWAYS_INLINE
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static inline void VerifyObject(ObjPtr<mirror::Object> obj) NO_THREAD_SAFETY_ANALYSIS {
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if (kVerifyObjectSupport > kVerifyObjectModeDisabled && obj != nullptr) {
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VerifyObjectImpl(obj);
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}
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}
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inline constexpr VerifyObjectFlags RemoveThisFlags(VerifyObjectFlags flags) {
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return static_cast<VerifyObjectFlags>(flags & ~kVerifyThis);
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}
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// Check that c.getClass() == c.getClass().getClass().
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ALWAYS_INLINE bool VerifyClassClass(ObjPtr<mirror::Class> c) NO_THREAD_SAFETY_ANALYSIS;
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} // namespace art
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#endif // ART_RUNTIME_VERIFY_OBJECT_H_
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