Merge pull request #918 from yuriks/romfs

Do not load entire RomFS to memory, read from the file as needed instead (rebased)
This commit is contained in:
bunnei 2015-07-16 18:08:46 -04:00
commit 946f0ee2f4
17 changed files with 112 additions and 98 deletions

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@ -17,16 +17,15 @@
namespace FileSys { namespace FileSys {
ArchiveFactory_RomFS::ArchiveFactory_RomFS(const Loader::AppLoader& app_loader) ArchiveFactory_RomFS::ArchiveFactory_RomFS(Loader::AppLoader& app_loader) {
: romfs_data(std::make_shared<std::vector<u8>>()) {
// Load the RomFS from the app // Load the RomFS from the app
if (Loader::ResultStatus::Success != app_loader.ReadRomFS(*romfs_data)) { if (Loader::ResultStatus::Success != app_loader.ReadRomFS(romfs_file, data_offset, data_size)) {
LOG_ERROR(Service_FS, "Unable to read RomFS!"); LOG_ERROR(Service_FS, "Unable to read RomFS!");
} }
} }
ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_RomFS::Open(const Path& path) { ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_RomFS::Open(const Path& path) {
auto archive = Common::make_unique<IVFCArchive>(romfs_data); auto archive = Common::make_unique<IVFCArchive>(romfs_file, data_offset, data_size);
return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive)); return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
} }

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@ -22,14 +22,16 @@ namespace FileSys {
/// File system interface to the RomFS archive /// File system interface to the RomFS archive
class ArchiveFactory_RomFS final : public ArchiveFactory { class ArchiveFactory_RomFS final : public ArchiveFactory {
public: public:
ArchiveFactory_RomFS(const Loader::AppLoader& app_loader); ArchiveFactory_RomFS(Loader::AppLoader& app_loader);
std::string GetName() const override { return "RomFS"; } std::string GetName() const override { return "RomFS"; }
ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path) override; ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path) override;
ResultCode Format(const Path& path) override; ResultCode Format(const Path& path) override;
private: private:
std::shared_ptr<std::vector<u8>> romfs_data; std::shared_ptr<FileUtil::IOFile> romfs_file;
u64 data_offset;
u64 data_size;
}; };
} // namespace FileSys } // namespace FileSys

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@ -37,17 +37,14 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SaveDataCheck::Open(co
auto vec = path.AsBinary(); auto vec = path.AsBinary();
const u32* data = reinterpret_cast<u32*>(vec.data()); const u32* data = reinterpret_cast<u32*>(vec.data());
std::string file_path = GetSaveDataCheckPath(mount_point, data[1], data[0]); std::string file_path = GetSaveDataCheckPath(mount_point, data[1], data[0]);
FileUtil::IOFile file(file_path, "rb"); auto file = std::make_shared<FileUtil::IOFile>(file_path, "rb");
if (!file.IsOpen()) { if (!file->IsOpen()) {
return ResultCode(-1); // TODO(Subv): Find the right error code return ResultCode(-1); // TODO(Subv): Find the right error code
} }
auto size = file.GetSize(); auto size = file->GetSize();
auto raw_data = std::make_shared<std::vector<u8>>(size);
file.ReadBytes(raw_data->data(), size);
file.Close();
auto archive = Common::make_unique<IVFCArchive>(std::move(raw_data)); auto archive = Common::make_unique<IVFCArchive>(file, 0, size);
return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive)); return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
} }

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@ -105,12 +105,12 @@ bool DiskFile::Open() {
return true; return true;
} }
size_t DiskFile::Read(const u64 offset, const u32 length, u8* buffer) const { size_t DiskFile::Read(const u64 offset, const size_t length, u8* buffer) const {
file->Seek(offset, SEEK_SET); file->Seek(offset, SEEK_SET);
return file->ReadBytes(buffer, length); return file->ReadBytes(buffer, length);
} }
size_t DiskFile::Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const { size_t DiskFile::Write(const u64 offset, const size_t length, const bool flush, const u8* buffer) const {
file->Seek(offset, SEEK_SET); file->Seek(offset, SEEK_SET);
size_t written = file->WriteBytes(buffer, length); size_t written = file->WriteBytes(buffer, length);
if (flush) if (flush)
@ -118,8 +118,8 @@ size_t DiskFile::Write(const u64 offset, const u32 length, const u32 flush, cons
return written; return written;
} }
size_t DiskFile::GetSize() const { u64 DiskFile::GetSize() const {
return static_cast<size_t>(file->GetSize()); return file->GetSize();
} }
bool DiskFile::SetSize(const u64 size) const { bool DiskFile::SetSize(const u64 size) const {

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@ -55,10 +55,10 @@ public:
DiskFile(const DiskArchive& archive, const Path& path, const Mode mode); DiskFile(const DiskArchive& archive, const Path& path, const Mode mode);
bool Open() override; bool Open() override;
size_t Read(const u64 offset, const u32 length, u8* buffer) const override; size_t Read(u64 offset, size_t length, u8* buffer) const override;
size_t Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const override; size_t Write(u64 offset, size_t length, bool flush, const u8* buffer) const override;
size_t GetSize() const override; u64 GetSize() const override;
bool SetSize(const u64 size) const override; bool SetSize(u64 size) const override;
bool Close() const override; bool Close() const override;
void Flush() const override { void Flush() const override {

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@ -31,7 +31,7 @@ public:
* @param buffer Buffer to read data into * @param buffer Buffer to read data into
* @return Number of bytes read * @return Number of bytes read
*/ */
virtual size_t Read(const u64 offset, const u32 length, u8* buffer) const = 0; virtual size_t Read(u64 offset, size_t length, u8* buffer) const = 0;
/** /**
* Write data to the file * Write data to the file
@ -41,20 +41,20 @@ public:
* @param buffer Buffer to read data from * @param buffer Buffer to read data from
* @return Number of bytes written * @return Number of bytes written
*/ */
virtual size_t Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const = 0; virtual size_t Write(u64 offset, size_t length, bool flush, const u8* buffer) const = 0;
/** /**
* Get the size of the file in bytes * Get the size of the file in bytes
* @return Size of the file in bytes * @return Size of the file in bytes
*/ */
virtual size_t GetSize() const = 0; virtual u64 GetSize() const = 0;
/** /**
* Set the size of the file in bytes * Set the size of the file in bytes
* @param size New size of the file * @param size New size of the file
* @return true if successful * @return true if successful
*/ */
virtual bool SetSize(const u64 size) const = 0; virtual bool SetSize(u64 size) const = 0;
/** /**
* Close the file * Close the file

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@ -16,15 +16,12 @@
namespace FileSys { namespace FileSys {
IVFCArchive::IVFCArchive(std::shared_ptr<const std::vector<u8>> data) : data(data) {
}
std::string IVFCArchive::GetName() const { std::string IVFCArchive::GetName() const {
return "IVFC"; return "IVFC";
} }
std::unique_ptr<FileBackend> IVFCArchive::OpenFile(const Path& path, const Mode mode) const { std::unique_ptr<FileBackend> IVFCArchive::OpenFile(const Path& path, const Mode mode) const {
return Common::make_unique<IVFCFile>(data); return Common::make_unique<IVFCFile>(romfs_file, data_offset, data_size);
} }
bool IVFCArchive::DeleteFile(const Path& path) const { bool IVFCArchive::DeleteFile(const Path& path) const {
@ -64,19 +61,21 @@ std::unique_ptr<DirectoryBackend> IVFCArchive::OpenDirectory(const Path& path) c
//////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////
size_t IVFCFile::Read(const u64 offset, const u32 length, u8* buffer) const { size_t IVFCFile::Read(const u64 offset, const size_t length, u8* buffer) const {
LOG_TRACE(Service_FS, "called offset=%llu, length=%d", offset, length); LOG_TRACE(Service_FS, "called offset=%llu, length=%d", offset, length);
memcpy(buffer, data->data() + offset, length); romfs_file->Seek(data_offset + offset, SEEK_SET);
return length; size_t read_length = (size_t)std::min((u64)length, data_size - offset);
return romfs_file->ReadBytes(buffer, read_length);
} }
size_t IVFCFile::Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const { size_t IVFCFile::Write(const u64 offset, const size_t length, const bool flush, const u8* buffer) const {
LOG_ERROR(Service_FS, "Attempted to write to IVFC file"); LOG_ERROR(Service_FS, "Attempted to write to IVFC file");
return 0; return 0;
} }
size_t IVFCFile::GetSize() const { u64 IVFCFile::GetSize() const {
return sizeof(u8) * data->size(); return data_size;
} }
bool IVFCFile::SetSize(const u64 size) const { bool IVFCFile::SetSize(const u64 size) const {

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@ -10,6 +10,7 @@
#include <vector> #include <vector>
#include "common/common_types.h" #include "common/common_types.h"
#include "common/file_util.h"
#include "core/file_sys/archive_backend.h" #include "core/file_sys/archive_backend.h"
#include "core/file_sys/directory_backend.h" #include "core/file_sys/directory_backend.h"
@ -28,7 +29,8 @@ namespace FileSys {
*/ */
class IVFCArchive : public ArchiveBackend { class IVFCArchive : public ArchiveBackend {
public: public:
IVFCArchive(std::shared_ptr<const std::vector<u8>> data); IVFCArchive(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
: romfs_file(file), data_offset(offset), data_size(size) {}
std::string GetName() const override; std::string GetName() const override;
@ -42,23 +44,28 @@ public:
std::unique_ptr<DirectoryBackend> OpenDirectory(const Path& path) const override; std::unique_ptr<DirectoryBackend> OpenDirectory(const Path& path) const override;
protected: protected:
std::shared_ptr<const std::vector<u8>> data; std::shared_ptr<FileUtil::IOFile> romfs_file;
u64 data_offset;
u64 data_size;
}; };
class IVFCFile : public FileBackend { class IVFCFile : public FileBackend {
public: public:
IVFCFile(std::shared_ptr<const std::vector<u8>> data) : data(data) {} IVFCFile(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
: romfs_file(file), data_offset(offset), data_size(size) {}
bool Open() override { return true; } bool Open() override { return true; }
size_t Read(const u64 offset, const u32 length, u8* buffer) const override; size_t Read(u64 offset, size_t length, u8* buffer) const override;
size_t Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const override; size_t Write(u64 offset, size_t length, bool flush, const u8* buffer) const override;
size_t GetSize() const override; u64 GetSize() const override;
bool SetSize(const u64 size) const override; bool SetSize(u64 size) const override;
bool Close() const override { return false; } bool Close() const override { return false; }
void Flush() const override { } void Flush() const override { }
private: private:
std::shared_ptr<const std::vector<u8>> data; std::shared_ptr<FileUtil::IOFile> romfs_file;
u64 data_offset;
u64 data_size;
}; };
class IVFCDirectory : public DirectoryBackend { class IVFCDirectory : public DirectoryBackend {

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@ -116,7 +116,7 @@ ResultVal<bool> File::SyncRequest() {
u32 address = cmd_buff[6]; u32 address = cmd_buff[6];
LOG_TRACE(Service_FS, "Write %s %s: offset=0x%llx length=%d address=0x%x, flush=0x%x", LOG_TRACE(Service_FS, "Write %s %s: offset=0x%llx length=%d address=0x%x, flush=0x%x",
GetTypeName().c_str(), GetName().c_str(), offset, length, address, flush); GetTypeName().c_str(), GetName().c_str(), offset, length, address, flush);
cmd_buff[2] = static_cast<u32>(backend->Write(offset, length, flush, Memory::GetPointer(address))); cmd_buff[2] = static_cast<u32>(backend->Write(offset, length, flush != 0, Memory::GetPointer(address)));
break; break;
} }

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@ -246,11 +246,11 @@ ResultStatus AppLoader_THREEDSX::Load() {
if (is_loaded) if (is_loaded)
return ResultStatus::ErrorAlreadyLoaded; return ResultStatus::ErrorAlreadyLoaded;
if (!file->IsOpen()) if (!file.IsOpen())
return ResultStatus::Error; return ResultStatus::Error;
SharedPtr<CodeSet> codeset; SharedPtr<CodeSet> codeset;
if (Load3DSXFile(*file, Memory::PROCESS_IMAGE_VADDR, &codeset) != ERROR_NONE) if (Load3DSXFile(file, Memory::PROCESS_IMAGE_VADDR, &codeset) != ERROR_NONE)
return ResultStatus::Error; return ResultStatus::Error;
codeset->name = filename; codeset->name = filename;

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@ -17,7 +17,7 @@ namespace Loader {
/// Loads an 3DSX file /// Loads an 3DSX file
class AppLoader_THREEDSX final : public AppLoader { class AppLoader_THREEDSX final : public AppLoader {
public: public:
AppLoader_THREEDSX(std::unique_ptr<FileUtil::IOFile>&& file, std::string filename) AppLoader_THREEDSX(FileUtil::IOFile&& file, std::string filename)
: AppLoader(std::move(file)), filename(std::move(filename)) {} : AppLoader(std::move(file)), filename(std::move(filename)) {}
/** /**

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@ -273,7 +273,6 @@ SharedPtr<CodeSet> ElfReader::LoadInto(u32 vaddr) {
LOG_DEBUG(Loader, "%i segments:", header->e_phnum); LOG_DEBUG(Loader, "%i segments:", header->e_phnum);
// First pass : Get the bits into RAM // First pass : Get the bits into RAM
u32 segment_addr[32];
u32 base_addr = relocate ? vaddr : 0; u32 base_addr = relocate ? vaddr : 0;
u32 total_image_size = 0; u32 total_image_size = 0;
@ -392,15 +391,15 @@ ResultStatus AppLoader_ELF::Load() {
if (is_loaded) if (is_loaded)
return ResultStatus::ErrorAlreadyLoaded; return ResultStatus::ErrorAlreadyLoaded;
if (!file->IsOpen()) if (!file.IsOpen())
return ResultStatus::Error; return ResultStatus::Error;
// Reset read pointer in case this file has been read before. // Reset read pointer in case this file has been read before.
file->Seek(0, SEEK_SET); file.Seek(0, SEEK_SET);
u32 size = static_cast<u32>(file->GetSize()); size_t size = file.GetSize();
std::unique_ptr<u8[]> buffer(new u8[size]); std::unique_ptr<u8[]> buffer(new u8[size]);
if (file->ReadBytes(&buffer[0], size) != size) if (file.ReadBytes(&buffer[0], size) != size)
return ResultStatus::Error; return ResultStatus::Error;
ElfReader elf_reader(&buffer[0]); ElfReader elf_reader(&buffer[0]);

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@ -17,7 +17,7 @@ namespace Loader {
/// Loads an ELF/AXF file /// Loads an ELF/AXF file
class AppLoader_ELF final : public AppLoader { class AppLoader_ELF final : public AppLoader {
public: public:
AppLoader_ELF(std::unique_ptr<FileUtil::IOFile>&& file, std::string filename) AppLoader_ELF(FileUtil::IOFile&& file, std::string filename)
: AppLoader(std::move(file)), filename(std::move(filename)) { } : AppLoader(std::move(file)), filename(std::move(filename)) { }
/** /**

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@ -90,8 +90,8 @@ static const char* GetFileTypeString(FileType type) {
} }
ResultStatus LoadFile(const std::string& filename) { ResultStatus LoadFile(const std::string& filename) {
std::unique_ptr<FileUtil::IOFile> file(new FileUtil::IOFile(filename, "rb")); FileUtil::IOFile file(filename, "rb");
if (!file->IsOpen()) { if (!file.IsOpen()) {
LOG_ERROR(Loader, "Failed to load file %s", filename.c_str()); LOG_ERROR(Loader, "Failed to load file %s", filename.c_str());
return ResultStatus::Error; return ResultStatus::Error;
} }
@ -99,7 +99,7 @@ ResultStatus LoadFile(const std::string& filename) {
std::string filename_filename, filename_extension; std::string filename_filename, filename_extension;
Common::SplitPath(filename, nullptr, &filename_filename, &filename_extension); Common::SplitPath(filename, nullptr, &filename_filename, &filename_extension);
FileType type = IdentifyFile(*file); FileType type = IdentifyFile(file);
FileType filename_type = GuessFromExtension(filename_extension); FileType filename_type = GuessFromExtension(filename_extension);
if (type != filename_type) { if (type != filename_type) {
@ -124,7 +124,7 @@ ResultStatus LoadFile(const std::string& filename) {
case FileType::CXI: case FileType::CXI:
case FileType::CCI: case FileType::CCI:
{ {
AppLoader_NCCH app_loader(std::move(file)); AppLoader_NCCH app_loader(std::move(file), filename);
// Load application and RomFS // Load application and RomFS
if (ResultStatus::Success == app_loader.Load()) { if (ResultStatus::Success == app_loader.Load()) {

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@ -52,7 +52,7 @@ static inline u32 MakeMagic(char a, char b, char c, char d) {
/// Interface for loading an application /// Interface for loading an application
class AppLoader : NonCopyable { class AppLoader : NonCopyable {
public: public:
AppLoader(std::unique_ptr<FileUtil::IOFile>&& file) : file(std::move(file)) { } AppLoader(FileUtil::IOFile&& file) : file(std::move(file)) { }
virtual ~AppLoader() { } virtual ~AppLoader() { }
/** /**
@ -66,7 +66,7 @@ public:
* @param buffer Reference to buffer to store data * @param buffer Reference to buffer to store data
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
virtual ResultStatus ReadCode(std::vector<u8>& buffer) const { virtual ResultStatus ReadCode(std::vector<u8>& buffer) {
return ResultStatus::ErrorNotImplemented; return ResultStatus::ErrorNotImplemented;
} }
@ -75,7 +75,7 @@ public:
* @param buffer Reference to buffer to store data * @param buffer Reference to buffer to store data
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
virtual ResultStatus ReadIcon(std::vector<u8>& buffer) const { virtual ResultStatus ReadIcon(std::vector<u8>& buffer) {
return ResultStatus::ErrorNotImplemented; return ResultStatus::ErrorNotImplemented;
} }
@ -84,7 +84,7 @@ public:
* @param buffer Reference to buffer to store data * @param buffer Reference to buffer to store data
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
virtual ResultStatus ReadBanner(std::vector<u8>& buffer) const { virtual ResultStatus ReadBanner(std::vector<u8>& buffer) {
return ResultStatus::ErrorNotImplemented; return ResultStatus::ErrorNotImplemented;
} }
@ -93,21 +93,24 @@ public:
* @param buffer Reference to buffer to store data * @param buffer Reference to buffer to store data
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
virtual ResultStatus ReadLogo(std::vector<u8>& buffer) const { virtual ResultStatus ReadLogo(std::vector<u8>& buffer) {
return ResultStatus::ErrorNotImplemented; return ResultStatus::ErrorNotImplemented;
} }
/** /**
* Get the RomFS of the application * Get the RomFS of the application
* @param buffer Reference to buffer to store data * Since the RomFS can be huge, we return a file reference instead of copying to a buffer
* @param romfs_file The file containing the RomFS
* @param offset The offset the romfs begins on
* @param size The size of the romfs
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
virtual ResultStatus ReadRomFS(std::vector<u8>& buffer) const { virtual ResultStatus ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, u64& size) {
return ResultStatus::ErrorNotImplemented; return ResultStatus::ErrorNotImplemented;
} }
protected: protected:
std::unique_ptr<FileUtil::IOFile> file; FileUtil::IOFile file;
bool is_loaded = false; bool is_loaded = false;
}; };

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@ -117,7 +117,7 @@ FileType AppLoader_NCCH::IdentifyType(FileUtil::IOFile& file) {
return FileType::Error; return FileType::Error;
} }
ResultStatus AppLoader_NCCH::LoadExec() const { ResultStatus AppLoader_NCCH::LoadExec() {
using Kernel::SharedPtr; using Kernel::SharedPtr;
using Kernel::CodeSet; using Kernel::CodeSet;
@ -171,8 +171,8 @@ ResultStatus AppLoader_NCCH::LoadExec() const {
return ResultStatus::Error; return ResultStatus::Error;
} }
ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>& buffer) const { ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>& buffer) {
if (!file->IsOpen()) if (!file.IsOpen())
return ResultStatus::Error; return ResultStatus::Error;
LOG_DEBUG(Loader, "%d sections:", kMaxSections); LOG_DEBUG(Loader, "%d sections:", kMaxSections);
@ -186,7 +186,7 @@ ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>&
section.offset, section.size, section.name); section.offset, section.size, section.name);
s64 section_offset = (section.offset + exefs_offset + sizeof(ExeFs_Header) + ncch_offset); s64 section_offset = (section.offset + exefs_offset + sizeof(ExeFs_Header) + ncch_offset);
file->Seek(section_offset, SEEK_SET); file.Seek(section_offset, SEEK_SET);
if (is_compressed) { if (is_compressed) {
// Section is compressed, read compressed .code section... // Section is compressed, read compressed .code section...
@ -197,7 +197,7 @@ ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>&
return ResultStatus::ErrorMemoryAllocationFailed; return ResultStatus::ErrorMemoryAllocationFailed;
} }
if (file->ReadBytes(&temp_buffer[0], section.size) != section.size) if (file.ReadBytes(&temp_buffer[0], section.size) != section.size)
return ResultStatus::Error; return ResultStatus::Error;
// Decompress .code section... // Decompress .code section...
@ -208,7 +208,7 @@ ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>&
} else { } else {
// Section is uncompressed... // Section is uncompressed...
buffer.resize(section.size); buffer.resize(section.size);
if (file->ReadBytes(&buffer[0], section.size) != section.size) if (file.ReadBytes(&buffer[0], section.size) != section.size)
return ResultStatus::Error; return ResultStatus::Error;
} }
return ResultStatus::Success; return ResultStatus::Success;
@ -221,21 +221,21 @@ ResultStatus AppLoader_NCCH::Load() {
if (is_loaded) if (is_loaded)
return ResultStatus::ErrorAlreadyLoaded; return ResultStatus::ErrorAlreadyLoaded;
if (!file->IsOpen()) if (!file.IsOpen())
return ResultStatus::Error; return ResultStatus::Error;
// Reset read pointer in case this file has been read before. // Reset read pointer in case this file has been read before.
file->Seek(0, SEEK_SET); file.Seek(0, SEEK_SET);
if (file->ReadBytes(&ncch_header, sizeof(NCCH_Header)) != sizeof(NCCH_Header)) if (file.ReadBytes(&ncch_header, sizeof(NCCH_Header)) != sizeof(NCCH_Header))
return ResultStatus::Error; return ResultStatus::Error;
// Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)... // Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
if (MakeMagic('N', 'C', 'S', 'D') == ncch_header.magic) { if (MakeMagic('N', 'C', 'S', 'D') == ncch_header.magic) {
LOG_WARNING(Loader, "Only loading the first (bootable) NCCH within the NCSD file!"); LOG_WARNING(Loader, "Only loading the first (bootable) NCCH within the NCSD file!");
ncch_offset = 0x4000; ncch_offset = 0x4000;
file->Seek(ncch_offset, SEEK_SET); file.Seek(ncch_offset, SEEK_SET);
file->ReadBytes(&ncch_header, sizeof(NCCH_Header)); file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
} }
// Verify we are loading the correct file type... // Verify we are loading the correct file type...
@ -244,7 +244,7 @@ ResultStatus AppLoader_NCCH::Load() {
// Read ExHeader... // Read ExHeader...
if (file->ReadBytes(&exheader_header, sizeof(ExHeader_Header)) != sizeof(ExHeader_Header)) if (file.ReadBytes(&exheader_header, sizeof(ExHeader_Header)) != sizeof(ExHeader_Header))
return ResultStatus::Error; return ResultStatus::Error;
is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1; is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
@ -274,8 +274,8 @@ ResultStatus AppLoader_NCCH::Load() {
LOG_DEBUG(Loader, "ExeFS offset: 0x%08X", exefs_offset); LOG_DEBUG(Loader, "ExeFS offset: 0x%08X", exefs_offset);
LOG_DEBUG(Loader, "ExeFS size: 0x%08X", exefs_size); LOG_DEBUG(Loader, "ExeFS size: 0x%08X", exefs_size);
file->Seek(exefs_offset + ncch_offset, SEEK_SET); file.Seek(exefs_offset + ncch_offset, SEEK_SET);
if (file->ReadBytes(&exefs_header, sizeof(ExeFs_Header)) != sizeof(ExeFs_Header)) if (file.ReadBytes(&exefs_header, sizeof(ExeFs_Header)) != sizeof(ExeFs_Header))
return ResultStatus::Error; return ResultStatus::Error;
is_loaded = true; // Set state to loaded is_loaded = true; // Set state to loaded
@ -283,24 +283,24 @@ ResultStatus AppLoader_NCCH::Load() {
return LoadExec(); // Load the executable into memory for booting return LoadExec(); // Load the executable into memory for booting
} }
ResultStatus AppLoader_NCCH::ReadCode(std::vector<u8>& buffer) const { ResultStatus AppLoader_NCCH::ReadCode(std::vector<u8>& buffer) {
return LoadSectionExeFS(".code", buffer); return LoadSectionExeFS(".code", buffer);
} }
ResultStatus AppLoader_NCCH::ReadIcon(std::vector<u8>& buffer) const { ResultStatus AppLoader_NCCH::ReadIcon(std::vector<u8>& buffer) {
return LoadSectionExeFS("icon", buffer); return LoadSectionExeFS("icon", buffer);
} }
ResultStatus AppLoader_NCCH::ReadBanner(std::vector<u8>& buffer) const { ResultStatus AppLoader_NCCH::ReadBanner(std::vector<u8>& buffer) {
return LoadSectionExeFS("banner", buffer); return LoadSectionExeFS("banner", buffer);
} }
ResultStatus AppLoader_NCCH::ReadLogo(std::vector<u8>& buffer) const { ResultStatus AppLoader_NCCH::ReadLogo(std::vector<u8>& buffer) {
return LoadSectionExeFS("logo", buffer); return LoadSectionExeFS("logo", buffer);
} }
ResultStatus AppLoader_NCCH::ReadRomFS(std::vector<u8>& buffer) const { ResultStatus AppLoader_NCCH::ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, u64& size) {
if (!file->IsOpen()) if (!file.IsOpen())
return ResultStatus::Error; return ResultStatus::Error;
// Check if the NCCH has a RomFS... // Check if the NCCH has a RomFS...
@ -311,12 +311,17 @@ ResultStatus AppLoader_NCCH::ReadRomFS(std::vector<u8>& buffer) const {
LOG_DEBUG(Loader, "RomFS offset: 0x%08X", romfs_offset); LOG_DEBUG(Loader, "RomFS offset: 0x%08X", romfs_offset);
LOG_DEBUG(Loader, "RomFS size: 0x%08X", romfs_size); LOG_DEBUG(Loader, "RomFS size: 0x%08X", romfs_size);
buffer.resize(romfs_size); if (file.GetSize () < romfs_offset + romfs_size)
file->Seek(romfs_offset, SEEK_SET);
if (file->ReadBytes(&buffer[0], romfs_size) != romfs_size)
return ResultStatus::Error; return ResultStatus::Error;
// We reopen the file, to allow its position to be independent from file's
romfs_file = std::make_shared<FileUtil::IOFile>(filepath, "rb");
if (!romfs_file->IsOpen())
return ResultStatus::Error;
offset = romfs_offset;
size = romfs_size;
return ResultStatus::Success; return ResultStatus::Success;
} }
LOG_DEBUG(Loader, "NCCH has no RomFS"); LOG_DEBUG(Loader, "NCCH has no RomFS");

View File

@ -163,7 +163,8 @@ namespace Loader {
/// Loads an NCCH file (e.g. from a CCI, or the first NCCH in a CXI) /// Loads an NCCH file (e.g. from a CCI, or the first NCCH in a CXI)
class AppLoader_NCCH final : public AppLoader { class AppLoader_NCCH final : public AppLoader {
public: public:
AppLoader_NCCH(std::unique_ptr<FileUtil::IOFile>&& file) : AppLoader(std::move(file)) { } AppLoader_NCCH(FileUtil::IOFile&& file, const std::string& filepath)
: AppLoader(std::move(file)), filepath(filepath) { }
/** /**
* Returns the type of the file * Returns the type of the file
@ -183,35 +184,35 @@ public:
* @param buffer Reference to buffer to store data * @param buffer Reference to buffer to store data
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
ResultStatus ReadCode(std::vector<u8>& buffer) const override; ResultStatus ReadCode(std::vector<u8>& buffer) override;
/** /**
* Get the icon (typically icon section) of the application * Get the icon (typically icon section) of the application
* @param buffer Reference to buffer to store data * @param buffer Reference to buffer to store data
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
ResultStatus ReadIcon(std::vector<u8>& buffer) const override; ResultStatus ReadIcon(std::vector<u8>& buffer) override;
/** /**
* Get the banner (typically banner section) of the application * Get the banner (typically banner section) of the application
* @param buffer Reference to buffer to store data * @param buffer Reference to buffer to store data
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
ResultStatus ReadBanner(std::vector<u8>& buffer) const override; ResultStatus ReadBanner(std::vector<u8>& buffer) override;
/** /**
* Get the logo (typically logo section) of the application * Get the logo (typically logo section) of the application
* @param buffer Reference to buffer to store data * @param buffer Reference to buffer to store data
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
ResultStatus ReadLogo(std::vector<u8>& buffer) const override; ResultStatus ReadLogo(std::vector<u8>& buffer) override;
/** /**
* Get the RomFS of the application * Get the RomFS of the application
* @param buffer Reference to buffer to store data * @param buffer Reference to buffer to store data
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
ResultStatus ReadRomFS(std::vector<u8>& buffer) const override; ResultStatus ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, u64& size) override;
private: private:
@ -221,13 +222,13 @@ private:
* @param buffer Vector to read data into * @param buffer Vector to read data into
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
ResultStatus LoadSectionExeFS(const char* name, std::vector<u8>& buffer) const; ResultStatus LoadSectionExeFS(const char* name, std::vector<u8>& buffer);
/** /**
* Loads .code section into memory for booting * Loads .code section into memory for booting
* @return ResultStatus result of function * @return ResultStatus result of function
*/ */
ResultStatus LoadExec() const; ResultStatus LoadExec();
bool is_compressed = false; bool is_compressed = false;
@ -244,6 +245,8 @@ private:
NCCH_Header ncch_header; NCCH_Header ncch_header;
ExeFs_Header exefs_header; ExeFs_Header exefs_header;
ExHeader_Header exheader_header; ExHeader_Header exheader_header;
std::string filepath;
}; };
} // namespace Loader } // namespace Loader