115 lines
5.0 KiB
C++
115 lines
5.0 KiB
C++
#include <Cli.hpp>
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#include <domain/Types.hpp>
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#include <io/FileReader.hpp>
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#include <io/FileWriter.hpp>
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#include <elfpatcher/linux/LinuxElfPatcher.hpp>
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#include <elfpatcher/general/SegmentFilter.hpp>
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#include <elfpatcher/general/EntryStubBuilder.hpp>
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#include <elfpatcher/general/ProgramHeaderLayoutBuilder.hpp>
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#include <elfpatcher/general/SectionHeaderTableBuilder.hpp>
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#include <elfpatcher/windows/WindowsElfPatcher.hpp>
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#include <io/ByteWriter.hpp>
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#include <relinker/parsing/ElfReader.hpp>
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#include <relinker/analysis/ValidationPolicy.hpp>
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#include <relinker/analysis/SyscallScanner.hpp>
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#include <relinker/analysis/CallSiteResolver.hpp>
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#include <relinker/analysis/UnusedNidFilter.hpp>
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#include <relinker/output/SysVDynamicSectionBuilder.hpp>
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#include <relinker/output/CallRegistryWriter.hpp>
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#include <relinker/pipeline/RelinkerPipeline.hpp>
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#include <codegen/IAmd64OnlyConverter.hpp>
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#include <filesystem>
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#include <iostream>
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#include <memory>
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#include <string>
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int main(const int argc, char* argv[]) {
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Cli::Args args;
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try {
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args = Cli::ParseArgs(argc, argv);
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} catch (const std::exception& e) {
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std::cerr << "FAIL: " << e.what() << "\n";
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return 1;
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}
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try {
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Io::FileReader fileReader;
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Io::FileWriter fileWriter;
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auto sourceBytes = fileReader.Read(args.inputPath);
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const std::string absPath = std::filesystem::absolute(args.outputPath).string();
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if (args.toIntel) {
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std::cout << "Mode: Intel instruction conversion; system unchanged; unused-filter=" << args.unusedFilterLevel << " (not applied)\n";
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const Relinker::ElfReader elfReader(sourceBytes);
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const auto converter = Codegen::MakeAmd64OnlyConverter();
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auto result = converter->Convert(std::move(sourceBytes), elfReader.ReadCodeSegments());
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fileWriter.Write(absPath, std::move(result.Bytes));
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std::cout << "OK: " << result.ReplacedCount << " instructions replaced\n";
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if (args.autorun) return Cli::Autorun(absPath, args.toWindows);
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}
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auto elfReader = std::make_shared<Relinker::ElfReader>(sourceBytes);
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const auto pipeline = std::make_shared<Relinker::RelinkerPipeline>(
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elfReader,
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args.skipSyscallCheck ? Relinker::MakeNullSyscallScanner() : Relinker::MakeSyscallScanner(),
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Relinker::MakeCallSiteResolver(),
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std::make_shared<Relinker::ValidationPolicy>(),
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std::make_shared<Relinker::SysVDynamicSectionBuilder>(),
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args.unusedFilterLevel == 2 ? Relinker::MakeStrictUnusedNidFilter() : Relinker::MakeUnusedNidFilter(),
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args.unusedFilterLevel
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);
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std::cout << "System: " << (args.toWindows ? "Windows" : "Linux") << "; unused-filter=" << args.unusedFilterLevel << "\n";
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auto result = pipeline->Relink(sourceBytes);
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for (const auto& patch : result.Patches) {
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if (patch.Offset > sourceBytes.size() || patch.Bytes.size() > sourceBytes.size() - patch.Offset)
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throw Domain::RelinkerException("Relinker patch exceeds source image", patch.Offset);
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for (std::size_t index = 0; index < patch.Bytes.size(); ++index) sourceBytes[patch.Offset + index] = patch.Bytes[index];
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}
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if (args.writeRegistry) {
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const std::filesystem::path outFsPath(absPath);
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const std::string registryPath = (outFsPath.parent_path() / (outFsPath.stem().string() + ".registry.json")).string();
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fileWriter.Write(registryPath, std::make_shared<Relinker::CallRegistryWriter>()->WriteCallRegistry(result.RegistryEntries));
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}
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auto byteWriter = std::make_shared<Io::ByteWriter>();
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std::shared_ptr<Elfpatcher::IElfPatcher> patcher;
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if (args.toWindows) {
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patcher = std::make_shared<Elfpatcher::Windows::WindowsPePatcher>();
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} else {
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patcher = std::make_shared<Elfpatcher::Linux::LinuxElfPatcher>(
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std::make_shared<Elfpatcher::EntryStubBuilder>(),
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std::make_shared<Elfpatcher::ProgramHeaderLayoutBuilder>(
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std::make_shared<Elfpatcher::SegmentFilter>(),
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byteWriter
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),
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std::make_shared<Elfpatcher::SectionHeaderTableBuilder>(byteWriter),
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byteWriter
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);
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}
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fileWriter.Write(absPath, patcher->Patch(sourceBytes, result.OriginalHeaders, result.DynamicSection, result.OriginalPltGotVaddr, args.runPath, args.lazyBinding, args.windowsDiagnostics));
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std::cout << "External prx references: " << result.RegistryEntries.size() << "\nOutput file: " << absPath << '\n';
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if (args.autorun) return Cli::Autorun(absPath, args.toWindows);
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} catch (const Domain::RelinkerException& e) {
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std::cerr << "FAIL: " << e.what();
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if (e.FailureOffset != 0) std::cerr << " (offset 0x" << std::hex << e.FailureOffset << ")";
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std::cerr << "\n";
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return 2;
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} catch (const std::exception& e) {
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std::cerr << "FAIL: " << e.what() << "\n";
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return 2;
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}
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return 0;
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}
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