diff options
Diffstat (limited to 'src/core/loader/ncch.cpp')
| -rw-r--r-- | src/core/loader/ncch.cpp | 190 |
1 files changed, 84 insertions, 106 deletions
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 <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... + 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; } - else { - buffer.resize(exefs_header.section[i].size); - file.ReadBytes(&buffer[0], exefs_header.section[i].size); + 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; } - return ResultStatus::Success; + // 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()); - return ResultStatus::Error; } 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; + // 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)); + } - // Read ExHeader... + // Verify we are loading the correct file type... + if (0 != memcmp(&ncch_header.magic, "NCCH", 4)) + return ResultStatus::ErrorInvalidFormat; - file.ReadBytes(&exheader_header, sizeof(ExHeader_Header)); + // Read ExHeader... - is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1; - entry_point = exheader_header.codeset_info.text.address; + file->ReadBytes(&exheader_header, sizeof(ExHeader_Header)); - 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); + is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1; + entry_point = exheader_header.codeset_info.text.address; - // Read ExeFS... + 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); - exefs_offset = ncch_header.exefs_offset * kBlockSize; - u32 exefs_size = ncch_header.exefs_size * kBlockSize; + // Read ExeFS... - LOG_DEBUG(Loader, "ExeFS offset: 0x%08X", exefs_offset); - LOG_DEBUG(Loader, "ExeFS size: 0x%08X", exefs_size); + exefs_offset = ncch_header.exefs_offset * kBlockSize; + u32 exefs_size = ncch_header.exefs_size * kBlockSize; - file.Seek(exefs_offset + ncch_offset, 0); - file.ReadBytes(&exefs_header, sizeof(ExeFs_Header)); + LOG_DEBUG(Loader, "ExeFS offset: 0x%08X", exefs_offset); + LOG_DEBUG(Loader, "ExeFS size: 0x%08X", exefs_size); - LoadExec(); // Load the executable into memory for booting + file->Seek(exefs_offset + ncch_offset, 0); + file->ReadBytes(&exefs_header, sizeof(ExeFs_Header)); - is_loaded = true; // Set state to loaded + LoadExec(); // Load the executable into memory for booting - return ResultStatus::Success; - } else { - LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str()); - } - return ResultStatus::Error; + 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 { |