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100 lines
3.2 KiB
100 lines
3.2 KiB
/*
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* Copyright (C) 2018 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_TOOLS_DEXANALYZE_DEXANALYZE_BYTECODE_H_
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#define ART_TOOLS_DEXANALYZE_DEXANALYZE_BYTECODE_H_
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#include <array>
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#include <vector>
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#include <map>
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#include "base/safe_map.h"
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#include "dexanalyze_experiments.h"
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#include "dex/code_item_accessors.h"
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#include "dex/dex_file_types.h"
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namespace art {
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namespace dexanalyze {
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enum BytecodeExperiment {
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kExperimentInvoke,
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kExperimentInstanceField,
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kExperimentInstanceFieldSelf,
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kExperimentStaticField,
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kExperimentLocalType,
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kExperimentReturn,
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kExperimentSmallIf,
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kExperimentString,
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kExperimentSingleGetSet,
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};
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// Maps from global index to local index.
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struct TypeLinkage {
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// Referenced types.
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SafeMap<size_t, size_t> types_;
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// Owned fields.
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SafeMap<size_t, size_t> fields_;
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// Owned methods.
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SafeMap<size_t, size_t> methods_;
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// Referenced strings.
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SafeMap<size_t, size_t> strings_;
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};
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class NewRegisterInstructions : public Experiment {
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public:
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explicit NewRegisterInstructions(uint64_t experiments)
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: experiments_(experiments),
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move_result_reg_(256),
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first_arg_reg_count_(256),
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opcode_count_(256) {}
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void ProcessDexFiles(const std::vector<std::unique_ptr<const DexFile>>& dex_files);
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void Dump(std::ostream& os, uint64_t total_size) const;
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void ProcessCodeItem(const DexFile& dex_file,
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const CodeItemDataAccessor& code_item,
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dex::TypeIndex current_class_type,
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bool count_types,
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std::map<size_t, TypeLinkage>& types);
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void Add(Instruction::Code opcode, const Instruction& inst);
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bool InstNibbles(uint8_t opcode, const std::vector<uint32_t>& args);
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bool ExtendPrefix(uint32_t* value1, uint32_t* value2);
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bool Enabled(BytecodeExperiment experiment) const {
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return experiments_ & (1u << static_cast<uint64_t>(experiment));
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}
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private:
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size_t alignment_ = 1u;
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uint64_t output_size_ = 0u;
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uint64_t deduped_size_ = 0u;
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uint64_t dex_code_bytes_ = 0u;
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uint64_t experiments_ = std::numeric_limits<uint64_t>::max();
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uint64_t extended_field_ = 0u;
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uint64_t extended_method_ = 0u;
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std::vector<size_t> move_result_reg_;
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std::vector<size_t> first_arg_reg_count_;
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std::vector<size_t> opcode_count_;
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std::map<std::pair<uint32_t, uint32_t>, size_t> method_linkage_counts_;
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std::map<std::pair<uint32_t, uint32_t>, size_t> field_linkage_counts_;
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std::map<std::vector<uint8_t>, size_t> instruction_freq_;
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// Output instruction buffer.
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std::vector<uint8_t> buffer_;
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};
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} // namespace dexanalyze
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} // namespace art
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#endif // ART_TOOLS_DEXANALYZE_DEXANALYZE_BYTECODE_H_
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