forked from suyu/suyu
244 lines
8.3 KiB
C++
244 lines
8.3 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <cstring>
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#include "common/logging/log.h"
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#include "core/core.h"
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#include "core/file_sys/content_archive.h"
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#include "core/file_sys/control_metadata.h"
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#include "core/file_sys/patch_manager.h"
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#include "core/file_sys/romfs_factory.h"
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#include "core/hle/kernel/k_page_table.h"
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#include "core/hle/kernel/k_process.h"
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#include "core/hle/service/filesystem/filesystem.h"
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#include "core/loader/deconstructed_rom_directory.h"
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#include "core/loader/nso.h"
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namespace Loader {
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AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(FileSys::VirtualFile file_,
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bool override_update_)
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: AppLoader(std::move(file_)), override_update(override_update_) {
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const auto file_dir = file->GetContainingDirectory();
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// Title ID
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const auto npdm = file_dir->GetFile("main.npdm");
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if (npdm != nullptr) {
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const auto res = metadata.Load(npdm);
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if (res == ResultStatus::Success)
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title_id = metadata.GetTitleID();
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}
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// Icon
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FileSys::VirtualFile icon_file = nullptr;
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for (const auto& language : FileSys::LANGUAGE_NAMES) {
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icon_file = file_dir->GetFile("icon_" + std::string(language) + ".dat");
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if (icon_file != nullptr) {
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icon_data = icon_file->ReadAllBytes();
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break;
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}
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}
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if (icon_data.empty()) {
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// Any png, jpeg, or bmp file
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const auto& files = file_dir->GetFiles();
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const auto icon_iter =
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std::find_if(files.begin(), files.end(), [](const FileSys::VirtualFile& f) {
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return f->GetExtension() == "png" || f->GetExtension() == "jpg" ||
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f->GetExtension() == "bmp" || f->GetExtension() == "jpeg";
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});
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if (icon_iter != files.end())
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icon_data = (*icon_iter)->ReadAllBytes();
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}
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// Metadata
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FileSys::VirtualFile nacp_file = file_dir->GetFile("control.nacp");
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if (nacp_file == nullptr) {
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const auto& files = file_dir->GetFiles();
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const auto nacp_iter =
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std::find_if(files.begin(), files.end(),
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[](const FileSys::VirtualFile& f) { return f->GetExtension() == "nacp"; });
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if (nacp_iter != files.end())
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nacp_file = *nacp_iter;
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}
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if (nacp_file != nullptr) {
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FileSys::NACP nacp(nacp_file);
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name = nacp.GetApplicationName();
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}
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}
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AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(
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FileSys::VirtualDir directory, bool override_update_)
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: AppLoader(directory->GetFile("main")), dir(std::move(directory)),
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override_update(override_update_) {}
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FileType AppLoader_DeconstructedRomDirectory::IdentifyType(const FileSys::VirtualFile& dir_file) {
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if (FileSys::IsDirectoryExeFS(dir_file->GetContainingDirectory())) {
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return FileType::DeconstructedRomDirectory;
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}
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return FileType::Error;
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}
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AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirectory::Load(
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Kernel::KProcess& process, Core::System& system) {
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if (is_loaded) {
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return {ResultStatus::ErrorAlreadyLoaded, {}};
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}
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if (dir == nullptr) {
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if (file == nullptr) {
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return {ResultStatus::ErrorNullFile, {}};
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}
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dir = file->GetContainingDirectory();
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}
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// Read meta to determine title ID
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FileSys::VirtualFile npdm = dir->GetFile("main.npdm");
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if (npdm == nullptr) {
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return {ResultStatus::ErrorMissingNPDM, {}};
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}
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const ResultStatus result = metadata.Load(npdm);
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if (result != ResultStatus::Success) {
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return {result, {}};
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}
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if (override_update) {
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const FileSys::PatchManager patch_manager(
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metadata.GetTitleID(), system.GetFileSystemController(), system.GetContentProvider());
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dir = patch_manager.PatchExeFS(dir);
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}
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// Reread in case PatchExeFS affected the main.npdm
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npdm = dir->GetFile("main.npdm");
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if (npdm == nullptr) {
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return {ResultStatus::ErrorMissingNPDM, {}};
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}
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const ResultStatus result2 = metadata.Load(npdm);
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if (result2 != ResultStatus::Success) {
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return {result2, {}};
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}
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metadata.Print();
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const auto static_modules = {"rtld", "main", "subsdk0", "subsdk1", "subsdk2",
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"subsdk3", "subsdk4", "subsdk5", "subsdk6", "subsdk7",
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"subsdk8", "subsdk9", "sdk"};
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// Use the NSO module loader to figure out the code layout
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std::size_t code_size{};
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for (const auto& module : static_modules) {
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const FileSys::VirtualFile module_file{dir->GetFile(module)};
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if (!module_file) {
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continue;
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}
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const bool should_pass_arguments = std::strcmp(module, "rtld") == 0;
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const auto tentative_next_load_addr = AppLoader_NSO::LoadModule(
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process, system, *module_file, code_size, should_pass_arguments, false);
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if (!tentative_next_load_addr) {
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return {ResultStatus::ErrorLoadingNSO, {}};
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}
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code_size = *tentative_next_load_addr;
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}
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// Setup the process code layout
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if (process.LoadFromMetadata(metadata, code_size).IsError()) {
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return {ResultStatus::ErrorUnableToParseKernelMetadata, {}};
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}
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// Load NSO modules
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modules.clear();
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const VAddr base_address{process.PageTable().GetCodeRegionStart()};
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VAddr next_load_addr{base_address};
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const FileSys::PatchManager pm{metadata.GetTitleID(), system.GetFileSystemController(),
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system.GetContentProvider()};
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for (const auto& module : static_modules) {
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const FileSys::VirtualFile module_file{dir->GetFile(module)};
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if (!module_file) {
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continue;
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}
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const VAddr load_addr{next_load_addr};
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const bool should_pass_arguments = std::strcmp(module, "rtld") == 0;
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const auto tentative_next_load_addr = AppLoader_NSO::LoadModule(
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process, system, *module_file, load_addr, should_pass_arguments, true, pm);
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if (!tentative_next_load_addr) {
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return {ResultStatus::ErrorLoadingNSO, {}};
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}
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next_load_addr = *tentative_next_load_addr;
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modules.insert_or_assign(load_addr, module);
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LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr);
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}
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// Find the RomFS by searching for a ".romfs" file in this directory
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const auto& files = dir->GetFiles();
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const auto romfs_iter =
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std::find_if(files.begin(), files.end(), [](const FileSys::VirtualFile& f) {
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return f->GetName().find(".romfs") != std::string::npos;
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});
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// Register the RomFS if a ".romfs" file was found
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if (romfs_iter != files.end() && *romfs_iter != nullptr) {
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romfs = *romfs_iter;
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system.GetFileSystemController().RegisterRomFS(std::make_unique<FileSys::RomFSFactory>(
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*this, system.GetContentProvider(), system.GetFileSystemController()));
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}
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is_loaded = true;
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return {ResultStatus::Success,
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LoadParameters{metadata.GetMainThreadPriority(), metadata.GetMainThreadStackSize()}};
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}
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ResultStatus AppLoader_DeconstructedRomDirectory::ReadRomFS(FileSys::VirtualFile& out_dir) {
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if (romfs == nullptr) {
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return ResultStatus::ErrorNoRomFS;
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}
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out_dir = romfs;
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return ResultStatus::Success;
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}
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ResultStatus AppLoader_DeconstructedRomDirectory::ReadIcon(std::vector<u8>& out_buffer) {
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if (icon_data.empty()) {
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return ResultStatus::ErrorNoIcon;
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}
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out_buffer = icon_data;
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return ResultStatus::Success;
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}
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ResultStatus AppLoader_DeconstructedRomDirectory::ReadProgramId(u64& out_program_id) {
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out_program_id = title_id;
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return ResultStatus::Success;
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}
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ResultStatus AppLoader_DeconstructedRomDirectory::ReadTitle(std::string& out_title) {
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if (name.empty()) {
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return ResultStatus::ErrorNoControl;
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}
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out_title = name;
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return ResultStatus::Success;
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}
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bool AppLoader_DeconstructedRomDirectory::IsRomFSUpdatable() const {
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return false;
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}
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ResultStatus AppLoader_DeconstructedRomDirectory::ReadNSOModules(Modules& out_modules) {
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if (!is_loaded) {
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return ResultStatus::ErrorNotInitialized;
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}
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out_modules = this->modules;
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return ResultStatus::Success;
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}
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} // namespace Loader
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