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nso: Optimize loading of IPS patches 

Avoid resource-heavy classes and remove quasi-duplicated code.
master
Zach Hilman 2018-10-02 17:03:34 +07:00
parent 6d441828e6
commit 215b65fe75
5 changed files with 43 additions and 51 deletions
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81
src/core/file_sys/patch_manager.cpp
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@ -5,6 +5,7 @@
#include <algorithm>
#include <array>
#include <cstddef>
#include <cstring>
#include "common/hex_util.h"
#include "common/logging/log.h"
@ -72,11 +73,34 @@ VirtualDir PatchManager::PatchExeFS(VirtualDir exefs) const {
return exefs;
}
static std::vector<VirtualFile> CollectIPSPatches(const std::vector<VirtualDir>& patch_dirs,
const std::string& build_id) {
std::vector<VirtualFile> ips;
ips.reserve(patch_dirs.size());
for (const auto& subdir : patch_dirs) {
auto exefs_dir = subdir->GetSubdirectory("exefs");
if (exefs_dir != nullptr) {
for (const auto& file : exefs_dir->GetFiles()) {
if (file->GetExtension() != "ips")
continue;
auto name = file->GetName();
const auto p1 = name.substr(0, name.find('.'));
const auto this_build_id = p1.substr(0, p1.find_last_not_of('0') + 1);
if (build_id == this_build_id)
ips.push_back(file);
}
}
}
return ips;
}
std::vector<u8> PatchManager::PatchNSO(const std::vector<u8>& nso) const {
if (nso.size() < 0x100)
return nso;
NSOBuildHeader header{};
NSOBuildHeader header;
std::memcpy(&header, nso.data(), sizeof(NSOBuildHeader));
if (header.magic != Common::MakeMagic('N', 'S', 'O', '0'))
@ -91,24 +115,7 @@ std::vector<u8> PatchManager::PatchNSO(const std::vector<u8>& nso) const {
auto patch_dirs = load_dir->GetSubdirectories();
std::sort(patch_dirs.begin(), patch_dirs.end(),
[](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });
std::vector<VirtualFile> ips;
ips.reserve(patch_dirs.size() - 1);
for (const auto& subdir : patch_dirs) {
auto exefs_dir = subdir->GetSubdirectory("exefs");
if (exefs_dir != nullptr) {
for (const auto& file : exefs_dir->GetFiles()) {
if (file->GetExtension() != "ips")
continue;
auto name = file->GetName();
const auto p1 = name.substr(0, name.find_first_of('.'));
const auto this_build_id = p1.substr(0, p1.find_last_not_of('0') + 1);
if (build_id == this_build_id)
ips.push_back(file);
}
}
}
const auto ips = CollectIPSPatches(patch_dirs, build_id);
auto out = nso;
for (const auto& ips_file : ips) {
@ -136,23 +143,7 @@ bool PatchManager::HasNSOPatch(const std::array<u8, 32>& build_id_) const {
std::sort(patch_dirs.begin(), patch_dirs.end(),
[](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });
for (const auto& subdir : patch_dirs) {
auto exefs_dir = subdir->GetSubdirectory("exefs");
if (exefs_dir != nullptr) {
for (const auto& file : exefs_dir->GetFiles()) {
if (file->GetExtension() != "ips")
continue;
auto name = file->GetName();
const auto p1 = name.substr(0, name.find_first_of('.'));
const auto this_build_id = p1.substr(0, p1.find_last_not_of('0') + 1);
if (build_id == this_build_id)
return true;
}
}
}
return false;
return !CollectIPSPatches(patch_dirs, build_id).empty();
}
static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType type) {
@ -222,7 +213,7 @@ VirtualFile PatchManager::PatchRomFS(VirtualFile romfs, u64 ivfc_offset,
return romfs;
}
void AppendCommaIfNotEmpty(std::string& to, const std::string& with) {
static void AppendCommaIfNotEmpty(std::string& to, const std::string& with) {
if (to.empty())
to += with;
else
@ -233,8 +224,8 @@ static bool IsDirValidAndNonEmpty(const VirtualDir& dir) {
return dir != nullptr && (!dir->GetFiles().empty() || !dir->GetSubdirectories().empty());
}
std::map<std::string, std::string> PatchManager::GetPatchVersionNames() const {
std::map<std::string, std::string> out;
std::map<std::string, std::string, std::less<>> PatchManager::GetPatchVersionNames() const {
std::map<std::string, std::string, std::less<>> out;
const auto installed = Service::FileSystem::GetUnionContents();
// Game Updates
@ -243,19 +234,21 @@ std::map<std::string, std::string> PatchManager::GetPatchVersionNames() const {
auto [nacp, discard_icon_file] = update.GetControlMetadata();
if (nacp != nullptr) {
out["Update"] = nacp->GetVersionString();
out.insert_or_assign("Update", nacp->GetVersionString());
} else {
if (installed->HasEntry(update_tid, ContentRecordType::Program)) {
const auto meta_ver = installed->GetEntryVersion(update_tid);
if (meta_ver == boost::none || meta_ver.get() == 0) {
out["Update"] = "";
out.insert_or_assign("Update", "");
} else {
out["Update"] =
FormatTitleVersion(meta_ver.get(), TitleVersionFormat::ThreeElements);
out.insert_or_assign(
"Update",
FormatTitleVersion(meta_ver.get(), TitleVersionFormat::ThreeElements));
}
}
}
// General Mods (LayeredFS and IPS)
const auto mod_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
if (mod_dir != nullptr && mod_dir->GetSize() > 0) {
for (const auto& mod : mod_dir->GetSubdirectories()) {
@ -292,7 +285,7 @@ std::map<std::string, std::string> PatchManager::GetPatchVersionNames() const {
list += fmt::format("{}", dlc_match.back().title_id & 0x7FF);
out.insert_or_assign(PatchType::DLC, std::move(list));
out.insert_or_assign("DLC", std::move(list));
}
return out;

2
src/core/file_sys/patch_manager.h
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@ -50,7 +50,7 @@ public:
// Returns a vector of pairs between patch names and patch versions.
// i.e. Update 3.2.2 will return {"Update", "3.2.2"}
std::map<std::string, std::string> GetPatchVersionNames() const;
std::map<std::string, std::string, std::less<>> GetPatchVersionNames() const;
// Given title_id of the program, attempts to get the control data of the update and parse it,
// falling back to the base control data.

5
src/core/loader/deconstructed_rom_directory.cpp
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@ -130,6 +130,7 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(Kernel::Process& process)
}
process.LoadFromMetadata(metadata);
const FileSys::PatchManager pm(metadata.GetTitleID());
// Load NSO modules
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
@ -139,9 +140,7 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(Kernel::Process& process)
const FileSys::VirtualFile module_file = dir->GetFile(module);
if (module_file != nullptr) {
const VAddr load_addr = next_load_addr;
next_load_addr = AppLoader_NSO::LoadModule(
module_file, load_addr,
std::make_shared<FileSys::PatchManager>(metadata.GetTitleID()));
next_load_addr = AppLoader_NSO::LoadModule(module_file, load_addr, pm);
LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr);
// Register module with GDBStub
GDBStub::RegisterModule(module, load_addr, next_load_addr - 1, false);

4
src/core/loader/nso.cpp
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@ -94,7 +94,7 @@ static constexpr u32 PageAlignSize(u32 size) {
}
VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base,
std::shared_ptr<FileSys::PatchManager> pm) {
boost::optional<FileSys::PatchManager> pm) {
if (file == nullptr)
return {};
@ -144,7 +144,7 @@ VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base,
program_image.resize(image_size);
// Apply patches if necessary
if (pm != nullptr && pm->HasNSOPatch(nso_header.build_id)) {
if (pm != boost::none && pm->HasNSOPatch(nso_header.build_id)) {
std::vector<u8> pi_header(program_image.size() + 0x100);
std::memcpy(pi_header.data(), &nso_header, sizeof(NsoHeader));
std::memcpy(pi_header.data() + 0x100, program_image.data(), program_image.size());

2
src/core/loader/nso.h
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@ -28,7 +28,7 @@ public:
}
static VAddr LoadModule(FileSys::VirtualFile file, VAddr load_base,
std::shared_ptr<FileSys::PatchManager> pm = nullptr);
boost::optional<FileSys::PatchManager> pm = boost::none);
ResultStatus Load(Kernel::Process& process) override;
};