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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include <memory>
#include "core/file_sys/archive_romfs.h"
#include "core/loader/loader.h"
#include "core/loader/elf.h"
#include "core/loader/ncch.h"
#include "core/hle/kernel/archive.h"
#include "core/mem_map.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
namespace Loader {
/**
* Identifies the type of a bootable file
* @param filename String filename of bootable file
* @todo (ShizZy) this function sucks... make it actually check file contents etc.
* @return FileType of file
*/
FileType IdentifyFile(const std::string &filename) {
if (filename.size() == 0) {
ERROR_LOG(LOADER, "invalid filename %s", filename.c_str());
return FileType::Error;
}
size_t extension_loc = filename.find_last_of('.');
if (extension_loc == std::string::npos)
return FileType::Unknown;
std::string extension = Common::ToLower(filename.substr(extension_loc));
// TODO(bunnei): Do actual filetype checking instead of naively checking the extension
if (extension == ".elf") {
return FileType::ELF;
} else if (extension == ".axf") {
return FileType::ELF;
} else if (extension == ".cxi") {
return FileType::CXI;
} else if (extension == ".cci") {
return FileType::CCI;
} else if (extension == ".bin") {
return FileType::BIN;
}
return FileType::Unknown;
}
/**
* Identifies and loads a bootable file
* @param filename String filename of bootable file
* @return ResultStatus result of function
*/
ResultStatus LoadFile(const std::string& filename) {
INFO_LOG(LOADER, "Loading file %s...", filename.c_str());
switch (IdentifyFile(filename)) {
// Standard ELF file format...
case FileType::ELF:
return AppLoader_ELF(filename).Load();
// NCCH/NCSD container formats...
case FileType::CXI:
case FileType::CCI: {
AppLoader_NCCH app_loader(filename);
// Load application and RomFS
if (ResultStatus::Success == app_loader.Load()) {
Kernel::CreateArchive(new FileSys::Archive_RomFS(app_loader), "RomFS");
return ResultStatus::Success;
}
break;
}
// Raw BIN file format...
case FileType::BIN:
{
INFO_LOG(LOADER, "Loading BIN file %s...", filename.c_str());
File::IOFile file(filename, "rb");
if (file.IsOpen()) {
file.ReadBytes(Memory::GetPointer(Memory::EXEFS_CODE_VADDR), (size_t)file.GetSize());
Kernel::LoadExec(Memory::EXEFS_CODE_VADDR);
} else {
return ResultStatus::Error;
}
return ResultStatus::Success;
}
// Error occurred durring IdentifyFile...
case FileType::Error:
// IdentifyFile could know identify file type...
case FileType::Unknown:
default:
return ResultStatus::ErrorInvalidFormat;
}
return ResultStatus::Error;
}
} // namespace Loader
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