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refactor(patcher): separate linux and windows elf patchers

This commit is contained in:
boykopovar 2026-08-04 14:29:32 +03:00
parent 007ba188bb
commit 0a44083bbf
6 changed files with 78 additions and 13 deletions
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3
core/CMakeLists.txt
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@ -1,6 +1,7 @@
add_executable(relinker
${CMAKE_CURRENT_SOURCE_DIR}/main.cpp
${CMAKE_CURRENT_SOURCE_DIR}/elfpatcher/src/ElfPatcher.cpp
${CMAKE_CURRENT_SOURCE_DIR}/elfpatcher/src/linux/LinuxElfPatcher.cpp
${CMAKE_CURRENT_SOURCE_DIR}/elfpatcher/src/windows/WindowsElfPatcher.cpp
${CMAKE_CURRENT_SOURCE_DIR}/elfpatcher/src/filtering/SegmentFilter.cpp
${CMAKE_CURRENT_SOURCE_DIR}/elfpatcher/src/stub/EntryStubBuilder.cpp
${CMAKE_CURRENT_SOURCE_DIR}/elfpatcher/src/layout/ProgramHeaderLayoutBuilder.cpp

10
core/elfpatcher/include/elfpatcher/ElfPatcher.hpp → core/elfpatcher/include/elfpatcher/linux/LinuxElfPatcher.hpp
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@ -1,5 +1,5 @@
#ifndef ELFPATCHER_ELFPATCHER_HPP
#define ELFPATCHER_ELFPATCHER_HPP
#ifndef ELFPATCHER_LINUX_LINUXELFPATCHER_HPP
#define ELFPATCHER_LINUX_LINUXELFPATCHER_HPP
#include <elfpatcher/IElfPatcher.hpp>
#include <elfpatcher/domain/IEntryStubBuilder.hpp>
@ -8,11 +8,11 @@
#include <io/IByteWriter.hpp>
#include <memory>
namespace Elfpatcher {
namespace Elfpatcher::Linux {
class ElfPatcher : public IElfPatcher {
class LinuxElfPatcher : public IElfPatcher {
public:
ElfPatcher(
LinuxElfPatcher(
std::shared_ptr<IEntryStubBuilder> entryStubBuilder,
std::shared_ptr<IProgramHeaderLayoutBuilder> programHeaderLayoutBuilder,
std::shared_ptr<ISectionHeaderTableBuilder> sectionHeaderTableBuilder,

37
core/elfpatcher/include/elfpatcher/windows/WindowsElfPatcher.hpp Normal file
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@ -0,0 +1,37 @@
#ifndef ELFPATCHER_WINDOWS_WINDOWSELFPATCHER_HPP
#define ELFPATCHER_WINDOWS_WINDOWSELFPATCHER_HPP
#include <elfpatcher/IElfPatcher.hpp>
#include <elfpatcher/domain/IEntryStubBuilder.hpp>
#include <elfpatcher/domain/IProgramHeaderLayoutBuilder.hpp>
#include <elfpatcher/domain/ISectionHeaderTableBuilder.hpp>
#include <io/IByteWriter.hpp>
#include <memory>
namespace Elfpatcher::Windows {
class WindowsElfPatcher : public IElfPatcher {
public:
WindowsElfPatcher(
std::shared_ptr<IEntryStubBuilder> entryStubBuilder,
std::shared_ptr<IProgramHeaderLayoutBuilder> programHeaderLayoutBuilder,
std::shared_ptr<ISectionHeaderTableBuilder> sectionHeaderTableBuilder,
std::shared_ptr<Io::IByteWriter> byteWriter
);
std::vector<std::uint8_t> Patch(
const std::vector<std::uint8_t>& sourceElf,
const std::vector<Domain::ProgramHeader>& originalHeaders,
const Domain::SysVDynamicSection& dynamicSection
) override;
private:
std::shared_ptr<IEntryStubBuilder> _entryStubBuilder;
std::shared_ptr<IProgramHeaderLayoutBuilder> _programHeaderLayoutBuilder;
std::shared_ptr<ISectionHeaderTableBuilder> _sectionHeaderTableBuilder;
std::shared_ptr<Io::IByteWriter> _byteWriter;
};
}
#endif

10
core/elfpatcher/src/ElfPatcher.cpp → core/elfpatcher/src/linux/LinuxElfPatcher.cpp
View File

@ -1,11 +1,11 @@
#include <elfpatcher/ElfPatcher.hpp>
#include <elfpatcher/linux/LinuxElfPatcher.hpp>
#include <elfpatcher/domain/ElfConstants.hpp>
#include <elfpatcher/domain/ProgramHeaderLayoutRequest.hpp>
#include <elfpatcher/domain/SectionHeaderTableRequest.hpp>
namespace Elfpatcher {
namespace Elfpatcher::Linux {
ElfPatcher::ElfPatcher(
LinuxElfPatcher::LinuxElfPatcher(
std::shared_ptr<IEntryStubBuilder> entryStubBuilder,
std::shared_ptr<IProgramHeaderLayoutBuilder> programHeaderLayoutBuilder,
std::shared_ptr<ISectionHeaderTableBuilder> sectionHeaderTableBuilder,
@ -18,12 +18,12 @@ ElfPatcher::ElfPatcher(
{
}
void ElfPatcher::_appendDynEntry(std::vector<std::uint8_t>& buf, std::int64_t tag, std::uint64_t val) const {
void LinuxElfPatcher::_appendDynEntry(std::vector<std::uint8_t>& buf, std::int64_t tag, std::uint64_t val) const {
_byteWriter->AppendI64(buf, tag);
_byteWriter->AppendU64(buf, val);
}
std::vector<std::uint8_t> ElfPatcher::Patch(
std::vector<std::uint8_t> LinuxElfPatcher::Patch(
const std::vector<std::uint8_t>& sourceElf,
const std::vector<Domain::ProgramHeader>& originalHeaders,
const Domain::SysVDynamicSection& dynSection)

27
core/elfpatcher/src/windows/WindowsElfPatcher.cpp Normal file
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@ -0,0 +1,27 @@
#include <elfpatcher/windows/WindowsElfPatcher.hpp>
#include <domain/Types.hpp>
namespace Elfpatcher::Windows {
WindowsElfPatcher::WindowsElfPatcher(
std::shared_ptr<IEntryStubBuilder> entryStubBuilder,
std::shared_ptr<IProgramHeaderLayoutBuilder> programHeaderLayoutBuilder,
std::shared_ptr<ISectionHeaderTableBuilder> sectionHeaderTableBuilder,
std::shared_ptr<Io::IByteWriter> byteWriter
)
: _entryStubBuilder(std::move(entryStubBuilder))
, _programHeaderLayoutBuilder(std::move(programHeaderLayoutBuilder))
, _sectionHeaderTableBuilder(std::move(sectionHeaderTableBuilder))
, _byteWriter(std::move(byteWriter))
{
}
std::vector<std::uint8_t> WindowsElfPatcher::Patch(
const std::vector<std::uint8_t>& sourceElf,
const std::vector<Domain::ProgramHeader>& originalHeaders,
const Domain::SysVDynamicSection& dynamicSection)
{
throw Domain::RelinkerException("Not implemented");
}
}

4
core/main.cpp
View File

@ -1,7 +1,7 @@
#include <domain/Types.hpp>
#include <io/FileReader.hpp>
#include <io/FileWriter.hpp>
#include <elfpatcher/ElfPatcher.hpp>
#include <elfpatcher/linux/LinuxElfPatcher.hpp>
#include <elfpatcher/filtering/SegmentFilter.hpp>
#include <elfpatcher/stub/EntryStubBuilder.hpp>
#include <elfpatcher/layout/ProgramHeaderLayoutBuilder.hpp>
@ -71,7 +71,7 @@ int main(const int argc, char* argv[]) {
}
auto byteWriter = std::make_shared<Io::ByteWriter>();
Elfpatcher::ElfPatcher elfPatcher(
Elfpatcher::Linux::LinuxElfPatcher elfPatcher(
std::make_shared<Elfpatcher::EntryStubBuilder>(),
std::make_shared<Elfpatcher::ProgramHeaderLayoutBuilder>(
std::make_shared<Elfpatcher::SegmentFilter>(),