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-rw-r--r--src/core/loader/nso.cpp130
1 files changed, 61 insertions, 69 deletions
diff --git a/src/core/loader/nso.cpp b/src/core/loader/nso.cpp
index 6ded0b707..80090b792 100644
--- a/src/core/loader/nso.cpp
+++ b/src/core/loader/nso.cpp
@@ -4,13 +4,17 @@
#include <cinttypes>
#include <vector>
-#include <lz4.h>
+
#include "common/common_funcs.h"
#include "common/file_util.h"
+#include "common/hex_util.h"
#include "common/logging/log.h"
+#include "common/lz4_compression.h"
#include "common/swap.h"
+#include "core/core.h"
#include "core/file_sys/patch_manager.h"
#include "core/gdbstub/gdbstub.h"
+#include "core/hle/kernel/code_set.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/nso.h"
@@ -18,36 +22,8 @@
#include "core/settings.h"
namespace Loader {
-
-struct NsoSegmentHeader {
- u32_le offset;
- u32_le location;
- u32_le size;
- union {
- u32_le alignment;
- u32_le bss_size;
- };
-};
-static_assert(sizeof(NsoSegmentHeader) == 0x10, "NsoSegmentHeader has incorrect size.");
-
-struct NsoHeader {
- u32_le magic;
- u32_le version;
- INSERT_PADDING_WORDS(1);
- u8 flags;
- std::array<NsoSegmentHeader, 3> segments; // Text, RoData, Data (in that order)
- std::array<u8, 0x20> build_id;
- std::array<u32_le, 3> segments_compressed_size;
-
- bool IsSegmentCompressed(size_t segment_num) const {
- ASSERT_MSG(segment_num < 3, "Invalid segment {}", segment_num);
- return ((flags >> segment_num) & 1);
- }
-};
-static_assert(sizeof(NsoHeader) == 0x6c, "NsoHeader has incorrect size.");
-static_assert(std::is_trivially_copyable_v<NsoHeader>, "NsoHeader isn't trivially copyable.");
-
-struct ModHeader {
+namespace {
+struct MODHeader {
u32_le magic;
u32_le dynamic_offset;
u32_le bss_start_offset;
@@ -56,7 +32,28 @@ struct ModHeader {
u32_le eh_frame_hdr_end_offset;
u32_le module_offset; // Offset to runtime-generated module object. typically equal to .bss base
};
-static_assert(sizeof(ModHeader) == 0x1c, "ModHeader has incorrect size.");
+static_assert(sizeof(MODHeader) == 0x1c, "MODHeader has incorrect size.");
+
+std::vector<u8> DecompressSegment(const std::vector<u8>& compressed_data,
+ const NSOSegmentHeader& header) {
+ const std::vector<u8> uncompressed_data =
+ Common::Compression::DecompressDataLZ4(compressed_data, header.size);
+
+ ASSERT_MSG(uncompressed_data.size() == header.size, "{} != {}", header.size,
+ uncompressed_data.size());
+
+ return uncompressed_data;
+}
+
+constexpr u32 PageAlignSize(u32 size) {
+ return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
+}
+} // Anonymous namespace
+
+bool NSOHeader::IsSegmentCompressed(size_t segment_num) const {
+ ASSERT_MSG(segment_num < 3, "Invalid segment {}", segment_num);
+ return ((flags >> segment_num) & 1) != 0;
+}
AppLoader_NSO::AppLoader_NSO(FileSys::VirtualFile file) : AppLoader(std::move(file)) {}
@@ -73,38 +70,22 @@ FileType AppLoader_NSO::IdentifyType(const FileSys::VirtualFile& file) {
return FileType::NSO;
}
-static std::vector<u8> DecompressSegment(const std::vector<u8>& compressed_data,
- const NsoSegmentHeader& header) {
- std::vector<u8> uncompressed_data(header.size);
- const int bytes_uncompressed =
- LZ4_decompress_safe(reinterpret_cast<const char*>(compressed_data.data()),
- reinterpret_cast<char*>(uncompressed_data.data()),
- static_cast<int>(compressed_data.size()), header.size);
-
- ASSERT_MSG(bytes_uncompressed == static_cast<int>(header.size) &&
- bytes_uncompressed == static_cast<int>(uncompressed_data.size()),
- "{} != {} != {}", bytes_uncompressed, header.size, uncompressed_data.size());
-
- return uncompressed_data;
-}
-
-static constexpr u32 PageAlignSize(u32 size) {
- return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
-}
-
std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
const FileSys::VfsFile& file, VAddr load_base,
bool should_pass_arguments,
std::optional<FileSys::PatchManager> pm) {
- if (file.GetSize() < sizeof(NsoHeader))
+ if (file.GetSize() < sizeof(NSOHeader)) {
return {};
+ }
- NsoHeader nso_header{};
- if (sizeof(NsoHeader) != file.ReadObject(&nso_header))
+ NSOHeader nso_header{};
+ if (sizeof(NSOHeader) != file.ReadObject(&nso_header)) {
return {};
+ }
- if (nso_header.magic != Common::MakeMagic('N', 'S', 'O', '0'))
+ if (nso_header.magic != Common::MakeMagic('N', 'S', 'O', '0')) {
return {};
+ }
// Build program image
Kernel::CodeSet codeset;
@@ -140,10 +121,10 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
std::memcpy(&module_offset, program_image.data() + 4, sizeof(u32));
// Read MOD header
- ModHeader mod_header{};
+ MODHeader mod_header{};
// Default .bss to size in segment header if MOD0 section doesn't exist
u32 bss_size{PageAlignSize(nso_header.segments[2].bss_size)};
- std::memcpy(&mod_header, program_image.data() + module_offset, sizeof(ModHeader));
+ std::memcpy(&mod_header, program_image.data() + module_offset, sizeof(MODHeader));
const bool has_mod_header{mod_header.magic == Common::MakeMagic('M', 'O', 'D', '0')};
if (has_mod_header) {
// Resize program image to include .bss section and page align each section
@@ -155,17 +136,29 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
// Apply patches if necessary
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());
+ std::vector<u8> pi_header;
+ pi_header.insert(pi_header.begin(), reinterpret_cast<u8*>(&nso_header),
+ reinterpret_cast<u8*>(&nso_header) + sizeof(NSOHeader));
+ pi_header.insert(pi_header.begin() + sizeof(NSOHeader), program_image.begin(),
+ program_image.end());
- pi_header = pm->PatchNSO(pi_header);
+ pi_header = pm->PatchNSO(pi_header, file.GetName());
- std::memcpy(program_image.data(), pi_header.data() + 0x100, program_image.size());
+ std::copy(pi_header.begin() + sizeof(NSOHeader), pi_header.end(), program_image.begin());
+ }
+
+ // Apply cheats if they exist and the program has a valid title ID
+ if (pm) {
+ auto& system = Core::System::GetInstance();
+ const auto cheats = pm->CreateCheatList(system, nso_header.build_id);
+ if (!cheats.empty()) {
+ system.RegisterCheatList(cheats, Common::HexToString(nso_header.build_id), load_base,
+ load_base + program_image.size());
+ }
}
// Load codeset for current process
- codeset.memory = std::make_shared<std::vector<u8>>(std::move(program_image));
+ codeset.memory = std::move(program_image);
process.LoadModule(std::move(codeset), load_base);
// Register module with GDBStub
@@ -174,22 +167,21 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
return load_base + image_size;
}
-ResultStatus AppLoader_NSO::Load(Kernel::Process& process) {
+AppLoader_NSO::LoadResult AppLoader_NSO::Load(Kernel::Process& process) {
if (is_loaded) {
- return ResultStatus::ErrorAlreadyLoaded;
+ return {ResultStatus::ErrorAlreadyLoaded, {}};
}
// Load module
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
if (!LoadModule(process, *file, base_address, true)) {
- return ResultStatus::ErrorLoadingNSO;
+ return {ResultStatus::ErrorLoadingNSO, {}};
}
LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", file->GetName(), base_address);
- process.Run(base_address, Kernel::THREADPRIO_DEFAULT, Memory::DEFAULT_STACK_SIZE);
-
is_loaded = true;
- return ResultStatus::Success;
+ return {ResultStatus::Success,
+ LoadParameters{Kernel::THREADPRIO_DEFAULT, Memory::DEFAULT_STACK_SIZE}};
}
} // namespace Loader
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-30 02:53:49 +0200