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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "read_elf.h"
#include <gtest/gtest.h>
#include <map>
#include "get_test_data.h"
#include "test_util.h"
TEST(read_elf, GetBuildIdFromElfFile) {
BuildId build_id;
ASSERT_TRUE(GetBuildIdFromElfFile(GetTestData(ELF_FILE), &build_id));
ASSERT_EQ(build_id, BuildId(elf_file_build_id));
}
TEST(read_elf, GetBuildIdFromEmbeddedElfFile) {
BuildId build_id;
ASSERT_TRUE(GetBuildIdFromEmbeddedElfFile(GetTestData(APK_FILE), NATIVELIB_OFFSET_IN_APK,
NATIVELIB_SIZE_IN_APK, &build_id));
ASSERT_EQ(build_id, native_lib_build_id);
}
void ParseSymbol(const ElfFileSymbol& symbol, std::map<std::string, ElfFileSymbol>* symbols) {
(*symbols)[symbol.name] = symbol;
}
static void CheckGlobalVariableSymbols(const std::map<std::string, ElfFileSymbol>& symbols) {
auto pos = symbols.find("GlobalVar");
ASSERT_NE(pos, symbols.end());
ASSERT_FALSE(pos->second.is_func);
}
static void CheckFunctionSymbols(const std::map<std::string, ElfFileSymbol>& symbols) {
auto pos = symbols.find("GlobalFunc");
ASSERT_NE(pos, symbols.end());
ASSERT_TRUE(pos->second.is_func);
ASSERT_TRUE(pos->second.is_in_text_section);
}
void CheckElfFileSymbols(const std::map<std::string, ElfFileSymbol>& symbols) {
CheckGlobalVariableSymbols(symbols);
CheckFunctionSymbols(symbols);
}
TEST(read_elf, parse_symbols_from_elf_file_with_correct_build_id) {
std::map<std::string, ElfFileSymbol> symbols;
ASSERT_TRUE(ParseSymbolsFromElfFile(GetTestData(ELF_FILE), elf_file_build_id,
std::bind(ParseSymbol, std::placeholders::_1, &symbols)));
CheckElfFileSymbols(symbols);
}
TEST(read_elf, parse_symbols_from_elf_file_without_build_id) {
std::map<std::string, ElfFileSymbol> symbols;
ASSERT_TRUE(ParseSymbolsFromElfFile(GetTestData(ELF_FILE), BuildId(),
std::bind(ParseSymbol, std::placeholders::_1, &symbols)));
CheckElfFileSymbols(symbols);
}
TEST(read_elf, parse_symbols_from_elf_file_with_wrong_build_id) {
BuildId build_id("01010101010101010101");
std::map<std::string, ElfFileSymbol> symbols;
ASSERT_FALSE(ParseSymbolsFromElfFile(GetTestData(ELF_FILE), build_id,
std::bind(ParseSymbol, std::placeholders::_1, &symbols)));
}
TEST(read_elf, ParseSymbolsFromEmbeddedElfFile) {
std::map<std::string, ElfFileSymbol> symbols;
ASSERT_TRUE(ParseSymbolsFromEmbeddedElfFile(GetTestData(APK_FILE), NATIVELIB_OFFSET_IN_APK,
NATIVELIB_SIZE_IN_APK, native_lib_build_id,
std::bind(ParseSymbol, std::placeholders::_1, &symbols)));
CheckElfFileSymbols(symbols);
}
TEST(read_elf, ParseSymbolFromMiniDebugInfoElfFile) {
std::map<std::string, ElfFileSymbol> symbols;
ASSERT_TRUE(ParseSymbolsFromElfFile(GetTestData(ELF_FILE_WITH_MINI_DEBUG_INFO), BuildId(),
std::bind(ParseSymbol, std::placeholders::_1, &symbols)));
CheckFunctionSymbols(symbols);
}
TEST(read_elf, arm_mapping_symbol) {
ASSERT_TRUE(IsArmMappingSymbol("$a"));
ASSERT_FALSE(IsArmMappingSymbol("$b"));
ASSERT_TRUE(IsArmMappingSymbol("$a.anything"));
ASSERT_FALSE(IsArmMappingSymbol("$a_no_dot"));
}
TEST(read_elf, IsValidElfPath) {
ASSERT_FALSE(IsValidElfPath("/dev/zero"));
ASSERT_FALSE(IsValidElfPath("/sys/devices/system/cpu/online"));
ASSERT_TRUE(IsValidElfPath(GetTestData(ELF_FILE)));
}
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