1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef _LIBUNWINDSTACK_DEX_FILE_H
18 #define _LIBUNWINDSTACK_DEX_FILE_H
19 
20 #include <stdint.h>
21 
22 #include <map>
23 #include <memory>
24 #include <string>
25 #include <utility>
26 #include <vector>
27 
28 #include <art_api/dex_file_support.h>
29 
30 namespace unwindstack {
31 
32 class DexFile : protected art_api::dex::DexFile {
33  public:
34   virtual ~DexFile() = default;
35 
36   bool GetMethodInformation(uint64_t dex_offset, std::string* method_name, uint64_t* method_offset);
37 
38   static std::unique_ptr<DexFile> Create(uint64_t dex_file_offset_in_memory, Memory* memory,
39                                          MapInfo* info);
40 
41  protected:
DexFile(std::unique_ptr<art_api::dex::DexFile> & art_dex_file)42   DexFile(std::unique_ptr<art_api::dex::DexFile>& art_dex_file)
43       : art_api::dex::DexFile(art_dex_file) {}
44 };
45 
46 class DexFileFromFile : public DexFile {
47  public:
48   static std::unique_ptr<DexFileFromFile> Create(uint64_t dex_file_offset_in_file,
49                                                  const std::string& file);
50 
51  private:
DexFileFromFile(std::unique_ptr<art_api::dex::DexFile> & art_dex_file)52   DexFileFromFile(std::unique_ptr<art_api::dex::DexFile>& art_dex_file) : DexFile(art_dex_file) {}
53 };
54 
55 class DexFileFromMemory : public DexFile {
56  public:
57   static std::unique_ptr<DexFileFromMemory> Create(uint64_t dex_file_offset_in_memory,
58                                                    Memory* memory, const std::string& name,
59                                                    size_t max_size);
60 
61  private:
DexFileFromMemory(std::unique_ptr<art_api::dex::DexFile> & art_dex_file,std::vector<uint8_t> && memory)62   DexFileFromMemory(std::unique_ptr<art_api::dex::DexFile>& art_dex_file,
63                     std::vector<uint8_t>&& memory)
64       : DexFile(art_dex_file), memory_(std::move(memory)) {}
65 
66   std::vector<uint8_t> memory_;
67 };
68 
69 }  // namespace unwindstack
70 
71 #endif  // _LIBUNWINDSTACK_DEX_FILE_H
72