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patch_manager: Add support for dumping decompressed NSOs 

When enabled in settings, PatchNSO will dump the unmodified NSO that it was passed to a file named <build id>.nso in the dump root for the current title ID.
This commit is contained in:
Zach Hilman 2018-10-29 16:10:16 -04:00
parent 48eb3742b9
commit 1c0226815d
2 changed files with 14 additions and 1 deletions
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13
src/core/file_sys/patch_manager.cpp
View File

@ -19,6 +19,7 @@
#include "core/file_sys/vfs_vector.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/loader/loader.h"
#include "core/settings.h"
namespace FileSys {
@ -119,6 +120,18 @@ std::vector<u8> PatchManager::PatchNSO(const std::vector<u8>& nso) const {
const auto build_id_raw = Common::HexArrayToString(header.build_id);
const auto build_id = build_id_raw.substr(0, build_id_raw.find_last_not_of('0') + 1);
if (Settings::values.dump_nso) {
LOG_INFO(Loader, "Dumping NSO for build_id={}, title_id={:016X}", build_id, title_id);
const auto dump_dir = Service::FileSystem::GetModificationDumpRoot(title_id);
if (dump_dir != nullptr) {
const auto nso_dir = GetOrCreateDirectoryRelative(dump_dir, "/nso");
const auto file = nso_dir->CreateFile(fmt::format("{}.nso", build_id));
file->Resize(nso.size());
file->WriteBytes(nso);
}
}
LOG_INFO(Loader, "Patching NSO for build_id={}", build_id);
const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);

2
src/core/loader/nso.cpp
View File

@ -154,7 +154,7 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(const FileSys::VfsFile& file, VAd
program_image.resize(image_size);
// Apply patches if necessary
if (pm && pm->HasNSOPatch(nso_header.build_id)) {
if (pm && (pm->HasNSOPatch(nso_header.build_id) || Settings::values.dump_nso)) {
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());