2 * Copyright (C) 2016 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #ifndef SIMPLE_PERF_READ_APK_H_
18 #define SIMPLE_PERF_READ_APK_H_
29 // Container for info an on ELF file embedded into an APK file
38 EmbeddedElf(std::string filepath,
39 std::string entry_name,
43 , entry_name_(entry_name)
44 , entry_offset_(entry_offset)
45 , entry_size_(entry_size)
50 const std::string &filepath() const { return filepath_; }
52 // Entry name within zip archive
53 const std::string &entry_name() const { return entry_name_; }
55 // Offset of zip entry from start of containing APK file
56 uint64_t entry_offset() const { return entry_offset_; }
58 // Size of zip entry (length of embedded ELF)
59 uint32_t entry_size() const { return entry_size_; }
62 std::string filepath_; // containing APK path
63 std::string entry_name_; // name of entry in zip index of embedded elf file
64 uint64_t entry_offset_; // offset of ELF from start of containing APK file
65 uint32_t entry_size_; // size of ELF file in zip
68 // APK inspector helper class
71 // Given an APK/ZIP/JAR file and an offset into that file, if the
72 // corresponding region of the APK corresponds to an uncompressed
73 // ELF file, then return pertinent info on the ELF.
74 static EmbeddedElf* FindElfInApkByOffset(const std::string& apk_path, uint64_t file_offset);
75 static std::unique_ptr<EmbeddedElf> FindElfInApkByName(const std::string& apk_path,
76 const std::string& elf_filename);
79 static std::unique_ptr<EmbeddedElf> FindElfInApkByOffsetWithoutCache(const std::string& apk_path,
80 uint64_t file_offset);
82 // First component of pair is APK file path, second is offset into APK.
83 typedef std::pair<std::string, uint64_t> ApkOffset;
85 static std::map<ApkOffset, std::unique_ptr<EmbeddedElf>> embedded_elf_cache_;
88 // Export for test only.
89 bool IsValidApkPath(const std::string& apk_path);
91 std::string GetUrlInApk(const std::string& apk_path, const std::string& elf_filename);
92 std::tuple<bool, std::string, std::string> SplitUrlInApk(const std::string& path);
94 bool GetBuildIdFromApkFile(const std::string& apk_path, const std::string& elf_filename,
97 bool ParseSymbolsFromApkFile(const std::string& apk_path, const std::string& elf_filename,
98 const BuildId& expected_build_id,
99 std::function<void(const ElfFileSymbol&)> callback);
102 #endif // SIMPLE_PERF_READ_APK_H_