diff options
Diffstat (limited to 'simpleperf/read_dex_file.cpp')
| -rw-r--r-- | simpleperf/read_dex_file.cpp | 71 |
1 files changed, 40 insertions, 31 deletions
diff --git a/simpleperf/read_dex_file.cpp b/simpleperf/read_dex_file.cpp index afab576b..13ca403f 100644 --- a/simpleperf/read_dex_file.cpp +++ b/simpleperf/read_dex_file.cpp @@ -33,42 +33,52 @@ namespace simpleperf { -static void ReadSymbols(art_api::dex::DexFile& dex_file, uint64_t file_offset, - const std::function<void(DexFileSymbol*)>& symbol_cb) { - auto callback = [&](const art_api::dex::DexFile::Method& method) { - size_t name_size, code_size; - const char* name = method.GetQualifiedName(/*with_params=*/false, &name_size); - size_t offset = method.GetCodeOffset(&code_size); - DexFileSymbol symbol{std::string_view(name, name_size), file_offset + offset, code_size}; - symbol_cb(&symbol); - }; - dex_file.ForEachMethod(callback); -} - -bool ReadSymbolsFromDexFileInMemory(void* addr, uint64_t size, const std::string& debug_filename, - const std::vector<uint64_t>& dex_file_offsets, - const std::function<void(DexFileSymbol*)>& symbol_callback) { - for (uint64_t file_offset : dex_file_offsets) { - size_t max_file_size; - if (__builtin_sub_overflow(size, file_offset, &max_file_size)) { - LOG(WARNING) << "failed to read dex file symbols from " << debug_filename << "(offset " - << file_offset << ")"; - return false; - } - uint8_t* file_addr = static_cast<uint8_t*>(addr) + file_offset; - std::unique_ptr<art_api::dex::DexFile> dex_file; - art_api::dex::DexFile::Error error_msg = - art_api::dex::DexFile::Create(file_addr, max_file_size, nullptr, "", &dex_file); +static bool ReadSymbols( + const std::vector<uint64_t>& dex_file_offsets, + const std::function<std::unique_ptr<art_api::dex::DexFile>(uint64_t offset)>& open_file_cb, + const std::function<void(DexFileSymbol*)>& symbol_cb) { + for (uint64_t dex_offset : dex_file_offsets) { + std::unique_ptr<art_api::dex::DexFile> dex_file = open_file_cb(dex_offset); if (dex_file == nullptr) { - LOG(WARNING) << "failed to read dex file symbols from " << debug_filename << "(offset " - << file_offset << "): " << error_msg.ToString(); return false; } - ReadSymbols(*dex_file, file_offset, symbol_callback); + + auto callback = [&](const art_api::dex::DexFile::Method& method) { + size_t name_size, code_size; + const char* name = method.GetQualifiedName(/*with_params=*/false, &name_size); + size_t offset = method.GetCodeOffset(&code_size); + DexFileSymbol symbol{std::string_view(name, name_size), dex_offset + offset, code_size}; + symbol_cb(&symbol); + }; + dex_file->ForEachMethod(callback); } + return true; } +bool ReadSymbolsFromDexFileInMemory(void* addr, uint64_t size, + const std::vector<uint64_t>& dex_file_offsets, + const std::function<void(DexFileSymbol*)>& symbol_callback) { + return ReadSymbols( + dex_file_offsets, + [&](uint64_t offset) -> std::unique_ptr<art_api::dex::DexFile> { + size_t max_file_size; + if (__builtin_sub_overflow(size, offset, &max_file_size)) { + return nullptr; + } + uint8_t* file_addr = static_cast<uint8_t*>(addr) + offset; + std::unique_ptr<art_api::dex::DexFile> dex_file; + art_api::dex::DexFile::Error error_msg = + art_api::dex::DexFile::Create(file_addr, max_file_size, nullptr, "", &dex_file); + if (dex_file == nullptr) { + LOG(WARNING) << "Failed to read dex file symbols: " << error_msg.ToString(); + return nullptr; + } + return dex_file; + }, + symbol_callback); +} + bool ReadSymbolsFromDexFile(const std::string& file_path, const std::vector<uint64_t>& dex_file_offsets, const std::function<void(DexFileSymbol*)>& symbol_callback) { @@ -85,8 +95,7 @@ bool ReadSymbolsFromDexFile(const std::string& file_path, if (map == nullptr) { return false; } - return ReadSymbolsFromDexFileInMemory(map->data(), file_size, file_path, dex_file_offsets, - symbol_callback); + return ReadSymbolsFromDexFileInMemory(map->data(), file_size, dex_file_offsets, symbol_callback); } } // namespace simpleperf |