2 * Copyright (C) 2015 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_ELF_H_
18 #define SIMPLE_PERF_READ_ELF_H_
24 bool GetBuildIdFromNoteFile(const std::string& filename, BuildId* build_id);
25 bool GetBuildIdFromElfFile(const std::string& filename, BuildId* build_id);
26 bool GetBuildIdFromEmbeddedElfFile(const std::string& filename, uint64_t file_offset,
27 uint32_t file_size, BuildId* build_id);
29 // The symbol prefix used to indicate that the symbol belongs to android linker.
30 static const std::string linker_prefix = "__dl_";
32 struct ElfFileSymbol {
37 bool is_in_text_section;
40 ElfFileSymbol() : vaddr(0), len(0), is_func(false), is_label(false), is_in_text_section(false) {
44 bool ParseSymbolsFromElfFile(const std::string& filename, const BuildId& expected_build_id,
45 std::function<void(const ElfFileSymbol&)> callback);
46 bool ParseSymbolsFromEmbeddedElfFile(const std::string& filename, uint64_t file_offset,
47 uint32_t file_size, const BuildId& expected_build_id,
48 std::function<void(const ElfFileSymbol&)> callback);
50 bool ReadMinExecutableVirtualAddressFromElfFile(const std::string& filename,
51 const BuildId& expected_build_id,
54 bool ReadSectionFromElfFile(const std::string& filename, const std::string& section_name,
55 std::string* content);
57 // Expose the following functions for unit tests.
58 bool IsArmMappingSymbol(const char* name);
59 bool IsValidElfFile(int fd);
60 bool IsValidElfPath(const std::string& filename);
62 #endif // SIMPLE_PERF_READ_ELF_H_