From b5237e885df72f6c37532fc8af9573966e7b07e5 Mon Sep 17 00:00:00 2001 From: Emmanuel Gil Peyrot Date: Tue, 6 Jan 2015 21:30:40 +0000 Subject: [PATCH] Loader: Keep a reference to the file and pass it to the correct AppLoader, instead of loading it multiple times. --- src/core/loader/3dsx.cpp | 21 +--- src/core/loader/3dsx.h | 7 +- src/core/loader/elf.cpp | 32 ++---- src/core/loader/elf.h | 7 +- src/core/loader/loader.cpp | 23 ++-- src/core/loader/loader.h | 7 +- src/core/loader/ncch.cpp | 216 +++++++++++++++++-------------------- src/core/loader/ncch.h | 7 +- 8 files changed, 130 insertions(+), 190 deletions(-) diff --git a/src/core/loader/3dsx.cpp b/src/core/loader/3dsx.cpp index 54ee992fc..873ee8b25 100644 --- a/src/core/loader/3dsx.cpp +++ b/src/core/loader/3dsx.cpp @@ -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; diff --git a/src/core/loader/3dsx.h b/src/core/loader/3dsx.h index f28224628..2f2e8bec0 100644 --- a/src/core/loader/3dsx.h +++ b/src/core/loader/3dsx.h @@ -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&& 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 diff --git a/src/core/loader/elf.cpp b/src/core/loader/elf.cpp index ee711d8b2..d1a1ef595 100644 --- a/src/core/loader/elf.cpp +++ b/src/core/loader/elf.cpp @@ -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 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(file->GetSize()); + std::unique_ptr 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; diff --git a/src/core/loader/elf.h b/src/core/loader/elf.h index 856722f1e..1c476c86b 100644 --- a/src/core/loader/elf.h +++ b/src/core/loader/elf.h @@ -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&& 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 diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp index 32196a1dc..fd32b7b20 100644 --- a/src/core/loader/loader.cpp +++ b/src/core/loader/loader.cpp @@ -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 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; } diff --git a/src/core/loader/loader.h b/src/core/loader/loader.h index ec5534d41..b4fc8636d 100644 --- a/src/core/loader/loader.h +++ b/src/core/loader/loader.h @@ -7,6 +7,7 @@ #include #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&& file) : file(std::move(file)) { } virtual ~AppLoader() { } /** @@ -93,6 +94,10 @@ public: virtual ResultStatus ReadRomFS(std::vector& buffer) const { return ResultStatus::ErrorNotImplemented; } + +protected: + std::unique_ptr file; + bool is_loaded = false; }; /** diff --git a/src/core/loader/ncch.cpp b/src/core/loader/ncch.cpp index 883a0f753..eca57d14b 100644 --- a/src/core/loader/ncch.cpp +++ b/src/core/loader/ncch.cpp @@ -4,8 +4,6 @@ #include -#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& 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 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 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& buffer) const { @@ -244,29 +225,26 @@ ResultStatus AppLoader_NCCH::ReadLogo(std::vector& buffer) const { } ResultStatus AppLoader_NCCH::ReadRomFS(std::vector& 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 { diff --git a/src/core/loader/ncch.h b/src/core/loader/ncch.h index 578513f77..d9d68f154 100644 --- a/src/core/loader/ncch.h +++ b/src/core/loader/ncch.h @@ -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&& 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;