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vfs: expand support for NCA reading

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This commit is contained in:
Liam 2023-08-10 21:34:43 -04:00
parent ec3d07e683
commit 5e3139e7c6
75 changed files with 8055 additions and 1043 deletions
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28
src/core/loader/nca.cpp
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@ -5,6 +5,8 @@
#include "core/core.h"
#include "core/file_sys/content_archive.h"
#include "core/file_sys/nca_metadata.h"
#include "core/file_sys/registered_cache.h"
#include "core/file_sys/romfs_factory.h"
#include "core/hle/kernel/k_process.h"
#include "core/hle/service/filesystem/filesystem.h"
@ -43,9 +45,23 @@ AppLoader_NCA::LoadResult AppLoader_NCA::Load(Kernel::KProcess& process, Core::S
return {ResultStatus::ErrorNCANotProgram, {}};
}
const auto exefs = nca->GetExeFS();
auto exefs = nca->GetExeFS();
if (exefs == nullptr) {
return {ResultStatus::ErrorNoExeFS, {}};
LOG_INFO(Loader, "No ExeFS found in NCA, looking for ExeFS from update");
// This NCA may be a sparse base of an installed title.
// Try to fetch the ExeFS from the installed update.
const auto& installed = system.GetContentProvider();
const auto update_nca = installed.GetEntry(FileSys::GetUpdateTitleID(nca->GetTitleId()),
FileSys::ContentRecordType::Program);
if (update_nca) {
exefs = update_nca->GetExeFS();
}
if (exefs == nullptr) {
return {ResultStatus::ErrorNoExeFS, {}};
}
}
directory_loader = std::make_unique<AppLoader_DeconstructedRomDirectory>(exefs, true);
@ -77,14 +93,6 @@ ResultStatus AppLoader_NCA::ReadRomFS(FileSys::VirtualFile& dir) {
return ResultStatus::Success;
}
u64 AppLoader_NCA::ReadRomFSIVFCOffset() const {
if (nca == nullptr) {
return 0;
}
return nca->GetBaseIVFCOffset();
}
ResultStatus AppLoader_NCA::ReadProgramId(u64& out_program_id) {
if (nca == nullptr || nca->GetStatus() != ResultStatus::Success) {
return ResultStatus::ErrorNotInitialized;