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82 lines
2.7 KiB
82 lines
2.7 KiB
4 months ago
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/*
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* Copyright (C) 2017 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_LIBDEXFILE_DEX_DEX_FILE_TRACKING_REGISTRAR_H_
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#define ART_LIBDEXFILE_DEX_DEX_FILE_TRACKING_REGISTRAR_H_
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#include <deque>
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#include <tuple>
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#include "dex_file.h"
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namespace art {
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namespace dex {
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namespace tracking {
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// Class for (un)poisoning various sections of Dex Files
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//
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// This class provides the means to log accesses only of sections whose
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// accesses are needed. All accesses are displayed as stack traces in
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// logcat.
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class DexFileTrackingRegistrar {
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public:
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explicit DexFileTrackingRegistrar(const DexFile* const dex_file)
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: dex_file_(dex_file) {
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}
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// This function is where the functions below it are called to actually
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// poison sections.
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void SetDexSections();
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// Uses data contained inside range_values_ to poison memory through the
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// memory tool.
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void SetCurrentRanges();
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private:
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void SetDexFileRegistration(bool should_poison);
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// Set of functions concerning Code Items of dex_file_
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void SetAllCodeItemRegistration(bool should_poison);
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// Sets the insns_ section of all code items.
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void SetAllInsnsRegistration(bool should_poison);
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// This function finds the code item of a class based on class name.
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void SetCodeItemRegistration(const char* class_name, bool should_poison);
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// Sets the size and offset information along with first instruction in insns_
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// section of all code items.
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void SetAllCodeItemStartRegistration(bool should_poison);
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// Set of functions concerning String Data Items of dex_file_
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void SetAllStringDataRegistration(bool should_poison);
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// Sets the first byte of size value and data section of all string data
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// items.
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void SetAllStringDataStartRegistration(bool should_poison);
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// Contains tuples of all ranges of memory that need to be explicitly
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// (un)poisoned by the memory tool.
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std::deque<std::tuple<const void *, size_t, bool>> range_values_;
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const DexFile* const dex_file_;
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};
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// This function is meant to called externally to use DexfileTrackingRegistrar
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void RegisterDexFile(const DexFile* dex_file);
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} // namespace tracking
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} // namespace dex
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} // namespace art
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#endif // ART_LIBDEXFILE_DEX_DEX_FILE_TRACKING_REGISTRAR_H_
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