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loader: Add DeconstructedRomDirectory for game dumps.

This commit is contained in:
bunnei 2018-01-20 14:59:17 -05:00
parent 023aef053c
commit e75aba3ed0
5 changed files with 156 additions and 0 deletions

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@ -149,6 +149,8 @@ add_library(core STATIC
hw/hw.h hw/hw.h
hw/lcd.cpp hw/lcd.cpp
hw/lcd.h hw/lcd.h
loader/deconstructed_rom_directory.cpp
loader/deconstructed_rom_directory.h
loader/elf.cpp loader/elf.cpp
loader/elf.h loader/elf.h
loader/linker.cpp loader/linker.cpp

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@ -0,0 +1,101 @@
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/common_funcs.h"
#include "common/common_paths.h"
#include "common/logging/log.h"
#include "common/string_util.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/loader/deconstructed_rom_directory.h"
#include "core/loader/nso.h"
#include "core/memory.h"
namespace Loader {
FileType AppLoader_DeconstructedRomDirectory::IdentifyType(FileUtil::IOFile& file,
const std::string& filepath) {
bool is_main_found{};
bool is_rtld_found{};
bool is_sdk_found{};
const auto callback = [&](unsigned* num_entries_out, const std::string& directory,
const std::string& virtual_name) -> bool {
// Skip directories
std::string physical_name = directory + virtual_name;
if (FileUtil::IsDirectory(physical_name)) {
return true;
}
// Verify filename
if (Common::ToLower(virtual_name) == "main") {
is_main_found = true;
} else if (Common::ToLower(virtual_name) == "rtld") {
is_rtld_found = true;
} else if (Common::ToLower(virtual_name) == "sdk") {
is_sdk_found = true;
} else {
// Contrinue searching
return true;
}
// Verify file is an NSO
FileUtil::IOFile file(physical_name, "rb");
if (AppLoader_NSO::IdentifyType(file, physical_name) != FileType::NSO) {
return false;
}
// We are done if we've found and verified all required NSOs
return !(is_main_found && is_rtld_found && is_sdk_found);
};
// Search the directory recursively, looking for the required modules
const std::string directory = filepath.substr(0, filepath.find_last_of("/\\")) + DIR_SEP;
FileUtil::ForeachDirectoryEntry(nullptr, directory, callback);
if (is_main_found && is_rtld_found && is_sdk_found) {
return FileType::DeconstructedRomDirectory;
}
return FileType::Error;
}
ResultStatus AppLoader_DeconstructedRomDirectory::Load(
Kernel::SharedPtr<Kernel::Process>& process) {
if (is_loaded) {
return ResultStatus::ErrorAlreadyLoaded;
}
if (!file.IsOpen()) {
return ResultStatus::Error;
}
process = Kernel::Process::Create("main");
// Load NSO modules
VAddr next_load_addr{Memory::PROCESS_IMAGE_VADDR};
for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
"subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) {
const std::string path =
filepath.substr(0, filepath.find_last_of("/\\")) + DIR_SEP + module;
const VAddr load_addr = next_load_addr;
next_load_addr = AppLoader_NSO::LoadModule(path, load_addr);
if (next_load_addr) {
LOG_DEBUG(Loader, "loaded module %s @ 0x%llx", module, load_addr);
} else {
next_load_addr = load_addr;
}
}
process->svc_access_mask.set();
process->address_mappings = default_address_mappings;
process->resource_limit =
Kernel::ResourceLimit::GetForCategory(Kernel::ResourceLimitCategory::APPLICATION);
process->Run(Memory::PROCESS_IMAGE_VADDR, 48, Kernel::DEFAULT_STACK_SIZE);
is_loaded = true;
return ResultStatus::Success;
}
} // namespace Loader

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@ -0,0 +1,44 @@
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <string>
#include "common/common_types.h"
#include "common/file_util.h"
#include "core/hle/kernel/kernel.h"
#include "core/loader/loader.h"
namespace Loader {
/**
* This class loads a "deconstructed ROM directory", which are the typical format we see for Switch
* game dumps. The path should be a "main" NSO, which must be in a directory that contains the other
* standard ExeFS NSOs (e.g. rtld, sdk, etc.). It will automatically find and load these.
* Furthermore, it will look for the first .istorage file (optionally) and use this for the RomFS.
*/
class AppLoader_DeconstructedRomDirectory final : public AppLoader {
public:
AppLoader_DeconstructedRomDirectory(FileUtil::IOFile&& file, std::string filepath)
: AppLoader(std::move(file)), filepath(std::move(filepath)) {}
/**
* Returns the type of the file
* @param file FileUtil::IOFile open file
* @param filepath Path of the file that we are opening.
* @return FileType found, or FileType::Error if this loader doesn't know it
*/
static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath);
FileType GetFileType() override {
return IdentifyType(file, filepath);
}
ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override;
private:
std::string filepath;
};
} // namespace Loader

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@ -7,6 +7,7 @@
#include "common/logging/log.h" #include "common/logging/log.h"
#include "common/string_util.h" #include "common/string_util.h"
#include "core/hle/kernel/process.h" #include "core/hle/kernel/process.h"
#include "core/loader/deconstructed_rom_directory.h"
#include "core/loader/elf.h" #include "core/loader/elf.h"
#include "core/loader/nro.h" #include "core/loader/nro.h"
#include "core/loader/nso.h" #include "core/loader/nso.h"
@ -29,6 +30,7 @@ FileType IdentifyFile(FileUtil::IOFile& file, const std::string& filepath) {
if (FileType::Error != type) \ if (FileType::Error != type) \
return type; return type;
CHECK_TYPE(DeconstructedRomDirectory)
CHECK_TYPE(ELF) CHECK_TYPE(ELF)
CHECK_TYPE(NSO) CHECK_TYPE(NSO)
CHECK_TYPE(NRO) CHECK_TYPE(NRO)
@ -69,6 +71,8 @@ const char* GetFileTypeString(FileType type) {
return "NRO"; return "NRO";
case FileType::NSO: case FileType::NSO:
return "NSO"; return "NSO";
case FileType::DeconstructedRomDirectory:
return "Directory";
case FileType::Error: case FileType::Error:
case FileType::Unknown: case FileType::Unknown:
break; break;
@ -102,6 +106,10 @@ static std::unique_ptr<AppLoader> GetFileLoader(FileUtil::IOFile&& file, FileTyp
case FileType::NRO: case FileType::NRO:
return std::make_unique<AppLoader_NRO>(std::move(file), filepath); return std::make_unique<AppLoader_NRO>(std::move(file), filepath);
// NX deconstructed ROM directory.
case FileType::DeconstructedRomDirectory:
return std::make_unique<AppLoader_DeconstructedRomDirectory>(std::move(file), filepath);
default: default:
return nullptr; return nullptr;
} }

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@ -32,6 +32,7 @@ enum class FileType {
ELF, ELF,
NSO, NSO,
NRO, NRO,
DeconstructedRomDirectory,
}; };
/** /**