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Loader: Keep a reference to the file and pass it to the correct AppLoader, instead of loading it multiple times.

This commit is contained in:
Emmanuel Gil Peyrot 2015-01-06 21:30:40 +00:00
parent 2d63df90a9
commit b5237e885d
8 changed files with 130 additions and 190 deletions
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21
src/core/loader/3dsx.cpp
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@ -199,28 +199,15 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr)
return ERROR_NONE;
}
/// AppLoader_DSX constructor
AppLoader_THREEDSX::AppLoader_THREEDSX(const std::string& filename) : filename(filename) {
}
/// AppLoader_DSX destructor
AppLoader_THREEDSX::~AppLoader_THREEDSX() {
}
ResultStatus AppLoader_THREEDSX::Load() {
LOG_INFO(Loader, "Loading 3DSX file %s...", filename.c_str());
if (is_loaded)
return ResultStatus::ErrorAlreadyLoaded;
FileUtil::IOFile file(filename, "rb");
if (file.IsOpen()) {
Load3DSXFile(file, 0x00100000);
Kernel::LoadExec(0x00100000);
} else {
if (!file->IsOpen())
return ResultStatus::Error;
}
Load3DSXFile(*file, 0x00100000);
Kernel::LoadExec(0x00100000);
is_loaded = true;
return ResultStatus::Success;

7
src/core/loader/3dsx.h
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@ -15,18 +15,13 @@ namespace Loader {
/// Loads an 3DSX file
class AppLoader_THREEDSX final : public AppLoader {
public:
AppLoader_THREEDSX(const std::string& filename);
~AppLoader_THREEDSX() override;
AppLoader_THREEDSX(std::unique_ptr<FileUtil::IOFile>&& file) : AppLoader(std::move(file)) { }
/**
* Load the bootable file
* @return ResultStatus result of function
*/
ResultStatus Load() override;
private:
std::string filename;
bool is_loaded = false;
};
} // namespace Loader

32
src/core/loader/elf.cpp
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@ -330,34 +330,20 @@ bool ElfReader::LoadSymbols() {
namespace Loader {
/// AppLoader_ELF constructor
AppLoader_ELF::AppLoader_ELF(const std::string& filename) {
this->filename = filename;
}
/// AppLoader_NCCH destructor
AppLoader_ELF::~AppLoader_ELF() {
}
ResultStatus AppLoader_ELF::Load() {
LOG_INFO(Loader, "Loading ELF file %s...", filename.c_str());
if (is_loaded)
return ResultStatus::ErrorAlreadyLoaded;
FileUtil::IOFile file(filename, "rb");
if (file.IsOpen()) {
u32 size = (u32)file.GetSize();
std::unique_ptr<u8[]> buffer(new u8[size]);
file.ReadBytes(&buffer[0], size);
ElfReader elf_reader(&buffer[0]);
elf_reader.LoadInto(0x00100000);
Kernel::LoadExec(elf_reader.GetEntryPoint());
} else {
if (!file->IsOpen())
return ResultStatus::Error;
}
u32 size = static_cast<u32>(file->GetSize());
std::unique_ptr<u8[]> buffer(new u8[size]);
file->ReadBytes(&buffer[0], size);
ElfReader elf_reader(&buffer[0]);
elf_reader.LoadInto(0x00100000);
Kernel::LoadExec(elf_reader.GetEntryPoint());
is_loaded = true;
return ResultStatus::Success;

7
src/core/loader/elf.h
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@ -15,18 +15,13 @@ namespace Loader {
/// Loads an ELF/AXF file
class AppLoader_ELF final : public AppLoader {
public:
AppLoader_ELF(const std::string& filename);
~AppLoader_ELF() override;
AppLoader_ELF(std::unique_ptr<FileUtil::IOFile>&& file) : AppLoader(std::move(file)) { }
/**
* Load the bootable file
* @return ResultStatus result of function
*/
ResultStatus Load() override;
private:
std::string filename;
bool is_loaded = false;
};
} // namespace Loader

23
src/core/loader/loader.cpp
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@ -56,20 +56,24 @@ FileType IdentifyFile(const std::string &filename) {
ResultStatus LoadFile(const std::string& filename) {
LOG_INFO(Loader, "Loading file %s...", filename.c_str());
std::unique_ptr<FileUtil::IOFile> file(new FileUtil::IOFile(filename, "rb"));
if (!file->IsOpen())
return ResultStatus::Error;
switch (IdentifyFile(filename)) {
//3DSX file format...
case FileType::THREEDSX:
return AppLoader_THREEDSX(filename).Load();
return AppLoader_THREEDSX(std::move(file)).Load();
// Standard ELF file format...
case FileType::ELF:
return AppLoader_ELF(filename).Load();
return AppLoader_ELF(std::move(file)).Load();
// NCCH/NCSD container formats...
case FileType::CXI:
case FileType::CCI: {
AppLoader_NCCH app_loader(filename);
AppLoader_NCCH app_loader(std::move(file));
// Load application and RomFS
if (ResultStatus::Success == app_loader.Load()) {
@ -83,16 +87,11 @@ ResultStatus LoadFile(const std::string& filename) {
// Raw BIN file format...
case FileType::BIN:
{
LOG_INFO(Loader, "Loading BIN file %s...", filename.c_str());
FileUtil::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 {
size_t size = (size_t)file->GetSize();
if (file->ReadBytes(Memory::GetPointer(Memory::EXEFS_CODE_VADDR), size) != size)
return ResultStatus::Error;
}
Kernel::LoadExec(Memory::EXEFS_CODE_VADDR);
return ResultStatus::Success;
}

7
src/core/loader/loader.h
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@ -7,6 +7,7 @@
#include <vector>
#include "common/common.h"
#include "common/file_util.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Loader namespace
@ -40,7 +41,7 @@ enum class ResultStatus {
/// Interface for loading an application
class AppLoader : NonCopyable {
public:
AppLoader() { }
AppLoader(std::unique_ptr<FileUtil::IOFile>&& file) : file(std::move(file)) { }
virtual ~AppLoader() { }
/**
@ -93,6 +94,10 @@ public:
virtual ResultStatus ReadRomFS(std::vector<u8>& buffer) const {
return ResultStatus::ErrorNotImplemented;
}
protected:
std::unique_ptr<FileUtil::IOFile> file;
bool is_loaded = false;
};
/**

216
src/core/loader/ncch.cpp
View File

@ -4,8 +4,6 @@
#include <memory>
#include "common/file_util.h"
#include "core/loader/ncch.h"
#include "core/hle/kernel/kernel.h"
#include "core/mem_map.h"
@ -99,15 +97,6 @@ static bool LZSS_Decompress(u8* compressed, u32 compressed_size, u8* decompresse
////////////////////////////////////////////////////////////////////////////////////////////////////
// AppLoader_NCCH class
/// AppLoader_NCCH constructor
AppLoader_NCCH::AppLoader_NCCH(const std::string& filename) {
this->filename = filename;
}
/// AppLoader_NCCH destructor
AppLoader_NCCH::~AppLoader_NCCH() {
}
ResultStatus AppLoader_NCCH::LoadExec() const {
if (!is_loaded)
return ResultStatus::ErrorNotLoaded;
@ -123,108 +112,100 @@ ResultStatus AppLoader_NCCH::LoadExec() const {
ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>& buffer) const {
// Iterate through the ExeFs archive until we find the .code file...
FileUtil::IOFile file(filename, "rb");
if (file.IsOpen()) {
LOG_DEBUG(Loader, "%d sections:", kMaxSections);
for (int i = 0; i < kMaxSections; i++) {
// Load the specified section...
if (strcmp((const char*)exefs_header.section[i].name, name) == 0) {
LOG_DEBUG(Loader, "%d - offset: 0x%08X, size: 0x%08X, name: %s", i,
exefs_header.section[i].offset, exefs_header.section[i].size,
exefs_header.section[i].name);
s64 section_offset = (exefs_header.section[i].offset + exefs_offset +
sizeof(ExeFs_Header)+ncch_offset);
file.Seek(section_offset, 0);
// Section is compressed...
if (i == 0 && is_compressed) {
// Read compressed .code section...
std::unique_ptr<u8[]> temp_buffer;
try {
temp_buffer.reset(new u8[exefs_header.section[i].size]);
} catch (std::bad_alloc&) {
return ResultStatus::ErrorMemoryAllocationFailed;
}
file.ReadBytes(&temp_buffer[0], exefs_header.section[i].size);
// Decompress .code section...
u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0],
exefs_header.section[i].size);
buffer.resize(decompressed_size);
if (!LZSS_Decompress(&temp_buffer[0], exefs_header.section[i].size, &buffer[0],
decompressed_size)) {
return ResultStatus::ErrorInvalidFormat;
}
// Section is uncompressed...
}
else {
buffer.resize(exefs_header.section[i].size);
file.ReadBytes(&buffer[0], exefs_header.section[i].size);
}
return ResultStatus::Success;
}
}
} else {
LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
if (!file->IsOpen())
return ResultStatus::Error;
LOG_DEBUG(Loader, "%d sections:", kMaxSections);
for (int i = 0; i < kMaxSections; i++) {
// Load the specified section...
if (strcmp((const char*)exefs_header.section[i].name, name) == 0) {
LOG_DEBUG(Loader, "%d - offset: 0x%08X, size: 0x%08X, name: %s", i,
exefs_header.section[i].offset, exefs_header.section[i].size,
exefs_header.section[i].name);
s64 section_offset = (exefs_header.section[i].offset + exefs_offset +
sizeof(ExeFs_Header)+ncch_offset);
file->Seek(section_offset, 0);
// Section is compressed...
if (i == 0 && is_compressed) {
// Read compressed .code section...
std::unique_ptr<u8[]> temp_buffer;
try {
temp_buffer.reset(new u8[exefs_header.section[i].size]);
} catch (std::bad_alloc&) {
return ResultStatus::ErrorMemoryAllocationFailed;
}
file->ReadBytes(&temp_buffer[0], exefs_header.section[i].size);
// Decompress .code section...
u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0],
exefs_header.section[i].size);
buffer.resize(decompressed_size);
if (!LZSS_Decompress(&temp_buffer[0], exefs_header.section[i].size, &buffer[0],
decompressed_size)) {
return ResultStatus::ErrorInvalidFormat;
}
// Section is uncompressed...
}
else {
buffer.resize(exefs_header.section[i].size);
file->ReadBytes(&buffer[0], exefs_header.section[i].size);
}
return ResultStatus::Success;
}
}
return ResultStatus::ErrorNotUsed;
}
ResultStatus AppLoader_NCCH::Load() {
LOG_INFO(Loader, "Loading NCCH file %s...", filename.c_str());
if (is_loaded)
return ResultStatus::ErrorAlreadyLoaded;
FileUtil::IOFile file(filename, "rb");
if (file.IsOpen()) {
file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
if (!file->IsOpen())
return ResultStatus::Error;
// Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
if (0 == memcmp(&ncch_header.magic, "NCSD", 4)) {
LOG_WARNING(Loader, "Only loading the first (bootable) NCCH within the NCSD file!");
ncch_offset = 0x4000;
file.Seek(ncch_offset, 0);
file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
}
file->ReadBytes(&ncch_header, sizeof(NCCH_Header));
// Verify we are loading the correct file type...
if (0 != memcmp(&ncch_header.magic, "NCCH", 4))
return ResultStatus::ErrorInvalidFormat;
// Read ExHeader...
file.ReadBytes(&exheader_header, sizeof(ExHeader_Header));
is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
entry_point = exheader_header.codeset_info.text.address;
LOG_INFO(Loader, "Name: %s", exheader_header.codeset_info.name);
LOG_DEBUG(Loader, "Code compressed: %s", is_compressed ? "yes" : "no");
LOG_DEBUG(Loader, "Entry point: 0x%08X", entry_point);
// Read ExeFS...
exefs_offset = ncch_header.exefs_offset * kBlockSize;
u32 exefs_size = ncch_header.exefs_size * kBlockSize;
LOG_DEBUG(Loader, "ExeFS offset: 0x%08X", exefs_offset);
LOG_DEBUG(Loader, "ExeFS size: 0x%08X", exefs_size);
file.Seek(exefs_offset + ncch_offset, 0);
file.ReadBytes(&exefs_header, sizeof(ExeFs_Header));
LoadExec(); // Load the executable into memory for booting
is_loaded = true; // Set state to loaded
return ResultStatus::Success;
} else {
LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
// Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
if (0 == memcmp(&ncch_header.magic, "NCSD", 4)) {
LOG_WARNING(Loader, "Only loading the first (bootable) NCCH within the NCSD file!");
ncch_offset = 0x4000;
file->Seek(ncch_offset, 0);
file->ReadBytes(&ncch_header, sizeof(NCCH_Header));
}
return ResultStatus::Error;
// Verify we are loading the correct file type...
if (0 != memcmp(&ncch_header.magic, "NCCH", 4))
return ResultStatus::ErrorInvalidFormat;
// Read ExHeader...
file->ReadBytes(&exheader_header, sizeof(ExHeader_Header));
is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
entry_point = exheader_header.codeset_info.text.address;
LOG_INFO(Loader, "Name: %s", exheader_header.codeset_info.name);
LOG_DEBUG(Loader, "Code compressed: %s", is_compressed ? "yes" : "no");
LOG_DEBUG(Loader, "Entry point: 0x%08X", entry_point);
// Read ExeFS...
exefs_offset = ncch_header.exefs_offset * kBlockSize;
u32 exefs_size = ncch_header.exefs_size * kBlockSize;
LOG_DEBUG(Loader, "ExeFS offset: 0x%08X", exefs_offset);
LOG_DEBUG(Loader, "ExeFS size: 0x%08X", exefs_size);
file->Seek(exefs_offset + ncch_offset, 0);
file->ReadBytes(&exefs_header, sizeof(ExeFs_Header));
LoadExec(); // Load the executable into memory for booting
is_loaded = true; // Set state to loaded
return ResultStatus::Success;
}
ResultStatus AppLoader_NCCH::ReadCode(std::vector<u8>& buffer) const {
@ -244,29 +225,26 @@ ResultStatus AppLoader_NCCH::ReadLogo(std::vector<u8>& buffer) const {
}
ResultStatus AppLoader_NCCH::ReadRomFS(std::vector<u8>& buffer) const {
FileUtil::IOFile file(filename, "rb");
if (file.IsOpen()) {
// Check if the NCCH has a RomFS...
if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) {
u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000;
u32 romfs_size = (ncch_header.romfs_size * kBlockSize) - 0x1000;
if (!file->IsOpen())
return ResultStatus::Error;
LOG_DEBUG(Loader, "RomFS offset: 0x%08X", romfs_offset);
LOG_DEBUG(Loader, "RomFS size: 0x%08X", romfs_size);
// Check if the NCCH has a RomFS...
if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) {
u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000;
u32 romfs_size = (ncch_header.romfs_size * kBlockSize) - 0x1000;
buffer.resize(romfs_size);
LOG_DEBUG(Loader, "RomFS offset: 0x%08X", romfs_offset);
LOG_DEBUG(Loader, "RomFS size: 0x%08X", romfs_size);
file.Seek(romfs_offset, 0);
file.ReadBytes(&buffer[0], romfs_size);
buffer.resize(romfs_size);
return ResultStatus::Success;
}
LOG_DEBUG(Loader, "NCCH has no RomFS");
return ResultStatus::ErrorNotUsed;
} else {
LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
file->Seek(romfs_offset, 0);
file->ReadBytes(&buffer[0], romfs_size);
return ResultStatus::Success;
}
return ResultStatus::Error;
LOG_DEBUG(Loader, "NCCH has no RomFS");
return ResultStatus::ErrorNotUsed;
}
u64 AppLoader_NCCH::GetProgramId() const {

7
src/core/loader/ncch.h
View File

@ -5,7 +5,6 @@
#pragma once
#include "common/common.h"
#include "common/file_util.h"
#include "core/loader/loader.h"
@ -147,8 +146,7 @@ namespace Loader {
/// Loads an NCCH file (e.g. from a CCI, or the first NCCH in a CXI)
class AppLoader_NCCH final : public AppLoader {
public:
AppLoader_NCCH(const std::string& filename);
~AppLoader_NCCH() override;
AppLoader_NCCH(std::unique_ptr<FileUtil::IOFile>&& file) : AppLoader(std::move(file)) { }
/**
* Load the application
@ -213,9 +211,6 @@ private:
*/
ResultStatus LoadExec() const;
std::string filename;
bool is_loaded = false;
bool is_compressed = false;
u32 entry_point = 0;