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NCCH: Fixes reduce unnecessary logging and load logo/banner/etc. sections correctly.

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Loader: Added ErrorNotUsed ReturnStatus type to specify when something is not used.
This commit is contained in:
bunnei 2014-06-18 23:53:22 -04:00
parent 7889cafc76
commit 3da2bc6830
3 changed files with 30 additions and 23 deletions
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1
src/core/loader/loader.h
View file

@ -30,6 +30,7 @@ enum class ResultStatus {
ErrorInvalidFormat, ErrorInvalidFormat,
ErrorNotImplemented, ErrorNotImplemented,
ErrorNotLoaded, ErrorNotLoaded,
ErrorNotUsed,
ErrorAlreadyLoaded, ErrorAlreadyLoaded,
}; };

47
src/core/loader/ncch.cpp
View file

@ -15,8 +15,8 @@
namespace Loader { namespace Loader {
const int kExeFs_MaxSections = 8; ///< Maximum number of sections (files) in an ExeFs static const int kMaxSections = 8; ///< Maximum number of sections (files) in an ExeFs
const int kExeFs_BlockSize = 0x200; ///< Size of ExeFS blocks (in bytes) static const int kBlockSize = 0x200; ///< Size of ExeFS blocks (in bytes)
/** /**
* Get the decompressed size of an LZSS compressed ExeFS file * Get the decompressed size of an LZSS compressed ExeFS file
@ -132,22 +132,24 @@ const ResultStatus AppLoader_NCCH::LoadExec() const {
} }
/** /**
* Reads an application section of an NCCH file into AppLoader (e.g. .code, .logo, etc.) * Reads an application ExeFS section of an NCCH file into AppLoader (e.g. .code, .logo, etc.)
* @param file Handle to file to read from * @param file Handle to file to read from
* @param name Name of section to read out of NCCH file * @param name Name of section to read out of NCCH file
* @param buffer Buffer to read section into. * @param buffer Buffer to read section into.
*/ */
const ResultStatus AppLoader_NCCH::LoadSection(File::IOFile& file, const char* name, const ResultStatus AppLoader_NCCH::LoadSectionExeFS(File::IOFile& file, const char* name,
std::vector<u8>& buffer) { std::vector<u8>& buffer) {
// Iterate through the ExeFs archive until we find the .code file...
for (int i = 0; i < kExeFs_MaxSections; i++) {
INFO_LOG(LOADER, "ExeFS section %d:", i);
INFO_LOG(LOADER, " name: %s", exefs_header.section[i].name);
INFO_LOG(LOADER, " offset: 0x%08X", exefs_header.section[i].offset);
INFO_LOG(LOADER, " size: 0x%08X", exefs_header.section[i].size);
// Load the .code section (executable code)... // Iterate through the ExeFs archive until we find the .code file...
for (int i = 0; i < kMaxSections; i++) {
// Load the specified section...
if (strcmp((const char*)exefs_header.section[i].name, name) == 0) { if (strcmp((const char*)exefs_header.section[i].name, name) == 0) {
INFO_LOG(LOADER, "ExeFS section %d:", i);
INFO_LOG(LOADER, " name: %s", exefs_header.section[i].name);
INFO_LOG(LOADER, " offset: 0x%08X", exefs_header.section[i].offset);
INFO_LOG(LOADER, " size: 0x%08X", exefs_header.section[i].size);
s64 section_offset = (exefs_header.section[i].offset + exefs_offset + s64 section_offset = (exefs_header.section[i].offset + exefs_offset +
sizeof(ExeFs_Header) + ncch_offset); sizeof(ExeFs_Header) + ncch_offset);
file.Seek(section_offset, 0); file.Seek(section_offset, 0);
@ -173,7 +175,7 @@ const ResultStatus AppLoader_NCCH::LoadSection(File::IOFile& file, const char* n
return ResultStatus::Success; return ResultStatus::Success;
} }
} }
return ResultStatus::Error; return ResultStatus::ErrorNotUsed;
} }
/** /**
@ -206,7 +208,8 @@ const ResultStatus AppLoader_NCCH::Load() {
if (0 != memcmp(&ncch_header.magic, "NCCH", 4)) if (0 != memcmp(&ncch_header.magic, "NCCH", 4))
return ResultStatus::ErrorInvalidFormat; return ResultStatus::ErrorInvalidFormat;
// Read ExHeader // Read ExHeader...
file.ReadBytes(&exheader_header, sizeof(ExHeader_Header)); file.ReadBytes(&exheader_header, sizeof(ExHeader_Header));
is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1; is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
@ -216,9 +219,10 @@ const ResultStatus AppLoader_NCCH::Load() {
INFO_LOG(LOADER, "Code compressed: %s", is_compressed ? "yes" : "no"); INFO_LOG(LOADER, "Code compressed: %s", is_compressed ? "yes" : "no");
INFO_LOG(LOADER, "Entry point: 0x%08X", entry_point); INFO_LOG(LOADER, "Entry point: 0x%08X", entry_point);
// Read ExeFS // Read ExeFS...
exefs_offset = ncch_header.exefs_offset * kExeFs_BlockSize;
u32 exefs_size = ncch_header.exefs_size * kExeFs_BlockSize; exefs_offset = ncch_header.exefs_offset * kBlockSize;
u32 exefs_size = ncch_header.exefs_size * kBlockSize;
INFO_LOG(LOADER, "ExeFS offset: 0x%08X", exefs_offset); INFO_LOG(LOADER, "ExeFS offset: 0x%08X", exefs_offset);
INFO_LOG(LOADER, "ExeFS size: 0x%08X", exefs_size); INFO_LOG(LOADER, "ExeFS size: 0x%08X", exefs_size);
@ -226,11 +230,12 @@ const ResultStatus AppLoader_NCCH::Load() {
file.Seek(exefs_offset + ncch_offset, 0); file.Seek(exefs_offset + ncch_offset, 0);
file.ReadBytes(&exefs_header, sizeof(ExeFs_Header)); file.ReadBytes(&exefs_header, sizeof(ExeFs_Header));
// TODO(bunnei): Check ResultStatus here... // TODO(bunnei): Check ResultStatus of these...
LoadSection(file, ".code", code);
LoadSection(file, ".icon", icon); LoadSectionExeFS(file, ".code", code);
LoadSection(file, ".banner", banner); LoadSectionExeFS(file, "banner", banner);
LoadSection(file, ".logo", logo); LoadSectionExeFS(file, "icon", icon);
LoadSectionExeFS(file, "logo", logo);
is_loaded = true; // Set state to loaded is_loaded = true; // Set state to loaded

5
src/core/loader/ncch.h
View file

@ -159,12 +159,13 @@ public:
private: private:
/** /**
* Reads an application section of an NCCH file into AppLoader (e.g. .code, .logo, etc.) * Reads an application ExeFS section of an NCCH file into AppLoader (e.g. .code, .logo, etc.)
* @param file Handle to file to read from * @param file Handle to file to read from
* @param name Name of section to read out of NCCH file * @param name Name of section to read out of NCCH file
* @param buffer Buffer to read section into. * @param buffer Buffer to read section into.
* @return ResultStatus result of function
*/ */
const ResultStatus LoadSection(File::IOFile& file, const char* name, const ResultStatus LoadSectionExeFS(File::IOFile& file, const char* name,
std::vector<u8>& buffer); std::vector<u8>& buffer);
/** /**