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authorbunnei <ericbunnie@gmail.com>2014-06-19 05:53:22 +0200
committerbunnei <ericbunnie@gmail.com>2014-06-25 01:30:05 +0200
commit3da2bc6830e05d943c4d131a3167c2df25bff344 (patch)
tree8f77cc09046ea8be33eb9816ffbf89d9cecdf524 /src/core
parentLoader: Implemented AppLoader interface for abstracting application loading. (diff)
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Diffstat (limited to 'src/core')
-rw-r--r--src/core/loader/loader.h1
-rw-r--r--src/core/loader/ncch.cpp45
-rw-r--r--src/core/loader/ncch.h5
3 files changed, 29 insertions, 22 deletions
diff --git a/src/core/loader/loader.h b/src/core/loader/loader.h
index 42caa29e6..38b3d4c99 100644
--- a/src/core/loader/loader.h
+++ b/src/core/loader/loader.h
@@ -30,6 +30,7 @@ enum class ResultStatus {
ErrorInvalidFormat,
ErrorNotImplemented,
ErrorNotLoaded,
+ ErrorNotUsed,
ErrorAlreadyLoaded,
};
diff --git a/src/core/loader/ncch.cpp b/src/core/loader/ncch.cpp
index 765efcf65..4cf805ba0 100644
--- a/src/core/loader/ncch.cpp
+++ b/src/core/loader/ncch.cpp
@@ -15,8 +15,8 @@
namespace Loader {
-const int kExeFs_MaxSections = 8; ///< Maximum number of sections (files) in an ExeFs
-const int kExeFs_BlockSize = 0x200; ///< Size of ExeFS blocks (in bytes)
+static const int kMaxSections = 8; ///< Maximum number of sections (files) in an ExeFs
+static const int kBlockSize = 0x200; ///< Size of ExeFS blocks (in bytes)
/**
* 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 name Name of section to read out of NCCH file
* @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) {
+
// 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);
+ for (int i = 0; i < kMaxSections; i++) {
- // Load the .code section (executable code)...
+ // Load the specified section...
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 +
sizeof(ExeFs_Header) + ncch_offset);
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::Error;
+ return ResultStatus::ErrorNotUsed;
}
/**
@@ -206,7 +208,8 @@ const ResultStatus AppLoader_NCCH::Load() {
if (0 != memcmp(&ncch_header.magic, "NCCH", 4))
return ResultStatus::ErrorInvalidFormat;
- // Read ExHeader
+ // Read ExHeader...
+
file.ReadBytes(&exheader_header, sizeof(ExHeader_Header));
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, "Entry point: 0x%08X", entry_point);
- // Read ExeFS
- exefs_offset = ncch_header.exefs_offset * kExeFs_BlockSize;
- u32 exefs_size = ncch_header.exefs_size * kExeFs_BlockSize;
+ // Read ExeFS...
+
+ 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 size: 0x%08X", exefs_size);
@@ -226,11 +230,12 @@ const ResultStatus AppLoader_NCCH::Load() {
file.Seek(exefs_offset + ncch_offset, 0);
file.ReadBytes(&exefs_header, sizeof(ExeFs_Header));
- // TODO(bunnei): Check ResultStatus here...
- LoadSection(file, ".code", code);
- LoadSection(file, ".icon", icon);
- LoadSection(file, ".banner", banner);
- LoadSection(file, ".logo", logo);
+ // TODO(bunnei): Check ResultStatus of these...
+
+ LoadSectionExeFS(file, ".code", code);
+ LoadSectionExeFS(file, "banner", banner);
+ LoadSectionExeFS(file, "icon", icon);
+ LoadSectionExeFS(file, "logo", logo);
is_loaded = true; // Set state to loaded
diff --git a/src/core/loader/ncch.h b/src/core/loader/ncch.h
index 3aae5417c..525a5aef5 100644
--- a/src/core/loader/ncch.h
+++ b/src/core/loader/ncch.h
@@ -159,12 +159,13 @@ public:
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 name Name of section to read out of NCCH file
* @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);
/**