mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-08-22 14:03:23 +02:00
loader: Add support for loading an NSO.
This commit is contained in:
parent
9eb4888df7
commit
6bafd3f4f7
@ -176,6 +176,7 @@ set(SRCS
|
|||||||
loader/elf.cpp
|
loader/elf.cpp
|
||||||
loader/loader.cpp
|
loader/loader.cpp
|
||||||
loader/ncch.cpp
|
loader/ncch.cpp
|
||||||
|
loader/nso.cpp
|
||||||
loader/smdh.cpp
|
loader/smdh.cpp
|
||||||
tracer/recorder.cpp
|
tracer/recorder.cpp
|
||||||
memory.cpp
|
memory.cpp
|
||||||
@ -375,6 +376,7 @@ set(HEADERS
|
|||||||
loader/elf.h
|
loader/elf.h
|
||||||
loader/loader.h
|
loader/loader.h
|
||||||
loader/ncch.h
|
loader/ncch.h
|
||||||
|
loader/nso.h
|
||||||
loader/smdh.h
|
loader/smdh.h
|
||||||
tracer/recorder.h
|
tracer/recorder.h
|
||||||
tracer/citrace.h
|
tracer/citrace.h
|
||||||
|
@ -10,6 +10,7 @@
|
|||||||
#include "core/loader/3dsx.h"
|
#include "core/loader/3dsx.h"
|
||||||
#include "core/loader/elf.h"
|
#include "core/loader/elf.h"
|
||||||
#include "core/loader/ncch.h"
|
#include "core/loader/ncch.h"
|
||||||
|
#include "core/loader/nso.h"
|
||||||
|
|
||||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
|
||||||
@ -32,6 +33,7 @@ FileType IdentifyFile(FileUtil::IOFile& file) {
|
|||||||
CHECK_TYPE(THREEDSX)
|
CHECK_TYPE(THREEDSX)
|
||||||
CHECK_TYPE(ELF)
|
CHECK_TYPE(ELF)
|
||||||
CHECK_TYPE(NCCH)
|
CHECK_TYPE(NCCH)
|
||||||
|
CHECK_TYPE(NSO)
|
||||||
|
|
||||||
#undef CHECK_TYPE
|
#undef CHECK_TYPE
|
||||||
|
|
||||||
@ -115,6 +117,10 @@ static std::unique_ptr<AppLoader> GetFileLoader(FileUtil::IOFile&& file, FileTyp
|
|||||||
case FileType::CCI:
|
case FileType::CCI:
|
||||||
return std::make_unique<AppLoader_NCCH>(std::move(file), filepath);
|
return std::make_unique<AppLoader_NCCH>(std::move(file), filepath);
|
||||||
|
|
||||||
|
// NX NSO file format.
|
||||||
|
case FileType::NSO:
|
||||||
|
return std::make_unique<AppLoader_NSO>(std::move(file), filename, filepath);
|
||||||
|
|
||||||
default:
|
default:
|
||||||
return nullptr;
|
return nullptr;
|
||||||
}
|
}
|
||||||
|
@ -32,6 +32,7 @@ enum class FileType {
|
|||||||
CIA,
|
CIA,
|
||||||
ELF,
|
ELF,
|
||||||
THREEDSX, // 3DSX
|
THREEDSX, // 3DSX
|
||||||
|
NSO,
|
||||||
};
|
};
|
||||||
|
|
||||||
/**
|
/**
|
||||||
|
295
src/core/loader/nso.cpp
Normal file
295
src/core/loader/nso.cpp
Normal file
@ -0,0 +1,295 @@
|
|||||||
|
// Copyright 2017 Citra Emulator Project
|
||||||
|
// Licensed under GPLv2 or any later version
|
||||||
|
// Refer to the license.txt file included.
|
||||||
|
|
||||||
|
#include <map>
|
||||||
|
#include <string>
|
||||||
|
#include <vector>
|
||||||
|
#include <lz4.h>
|
||||||
|
|
||||||
|
#include "common/logging/log.h"
|
||||||
|
#include "common/swap.h"
|
||||||
|
#include "core/hle/kernel/process.h"
|
||||||
|
#include "core/hle/kernel/resource_limit.h"
|
||||||
|
#include "core/loader/nso.h"
|
||||||
|
#include "core/memory.h"
|
||||||
|
|
||||||
|
using Kernel::CodeSet;
|
||||||
|
using Kernel::SharedPtr;
|
||||||
|
|
||||||
|
namespace Loader {
|
||||||
|
|
||||||
|
FileType AppLoader_NSO::IdentifyType(FileUtil::IOFile& file) {
|
||||||
|
u32 magic = 0;
|
||||||
|
file.Seek(0, SEEK_SET);
|
||||||
|
if (1 != file.ReadArray<u32>(&magic, 1))
|
||||||
|
return FileType::Error;
|
||||||
|
|
||||||
|
if (MakeMagic('N', 'S', 'O', '0') == magic)
|
||||||
|
return FileType::NSO;
|
||||||
|
|
||||||
|
return FileType::Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct NsoSegmentHeader {
|
||||||
|
u32_le offset;
|
||||||
|
u32_le location;
|
||||||
|
u32_le size;
|
||||||
|
u32_le alignment;
|
||||||
|
};
|
||||||
|
static_assert(sizeof(NsoSegmentHeader) == 0x10, "NsoSegmentHeader has incorrect size.");
|
||||||
|
|
||||||
|
struct NsoHeader {
|
||||||
|
u32_le magic;
|
||||||
|
INSERT_PADDING_BYTES(0xc);
|
||||||
|
std::array<NsoSegmentHeader, 3> segments; // Text, Data, RoData (in that order)
|
||||||
|
INSERT_PADDING_BYTES(0x20);
|
||||||
|
std::array<u32_le, 3> segments_compressed_size;
|
||||||
|
};
|
||||||
|
|
||||||
|
static_assert(sizeof(NsoHeader) == 0x6c, "NsoHeader has incorrect size.");
|
||||||
|
|
||||||
|
static std::vector<u8> ReadSegment(FileUtil::IOFile& file, const NsoSegmentHeader& header,
|
||||||
|
int compressed_size) {
|
||||||
|
std::vector<u8> compressed_data;
|
||||||
|
compressed_data.resize(compressed_size);
|
||||||
|
|
||||||
|
file.Seek(header.offset, SEEK_SET);
|
||||||
|
if (compressed_size != file.ReadBytes(compressed_data.data(), compressed_size)) {
|
||||||
|
LOG_CRITICAL(Loader, "Failed to read %d NSO LZ4 compressed bytes", compressed_size);
|
||||||
|
return {};
|
||||||
|
}
|
||||||
|
|
||||||
|
std::vector<u8> uncompressed_data;
|
||||||
|
uncompressed_data.resize(header.size);
|
||||||
|
const int bytes_uncompressed =
|
||||||
|
LZ4_decompress_safe_partial(reinterpret_cast<const char*>(compressed_data.data()),
|
||||||
|
reinterpret_cast<char*>(uncompressed_data.data()),
|
||||||
|
compressed_size, header.size, header.size);
|
||||||
|
|
||||||
|
ASSERT_MSG(bytes_uncompressed == header.size, "%d != %d", bytes_uncompressed, header.size);
|
||||||
|
|
||||||
|
return uncompressed_data;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct Symbol {
|
||||||
|
Symbol(std::string&& name, u64 value) : name(std::move(name)), value(value) {}
|
||||||
|
std::string name;
|
||||||
|
u64 value;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct Import {
|
||||||
|
VAddr ea;
|
||||||
|
s64 addend;
|
||||||
|
};
|
||||||
|
|
||||||
|
enum class RelocationType : u32 {
|
||||||
|
ABS64 = 257,
|
||||||
|
GLOB_DAT = 1025,
|
||||||
|
JUMP_SLOT = 1026,
|
||||||
|
RELATIVE = 1027
|
||||||
|
};
|
||||||
|
|
||||||
|
enum DynamicType : u32 {
|
||||||
|
DT_NULL = 0,
|
||||||
|
DT_PLTRELSZ = 2,
|
||||||
|
DT_STRTAB = 5,
|
||||||
|
DT_SYMTAB = 6,
|
||||||
|
DT_RELA = 7,
|
||||||
|
DT_RELASZ = 8,
|
||||||
|
DT_STRSZ = 10,
|
||||||
|
DT_JMPREL = 23,
|
||||||
|
};
|
||||||
|
|
||||||
|
void WriteRelocations(const std::vector<Symbol>& symbols, VAddr loadbase, u64 roff, u64 size,
|
||||||
|
bool is_jump_relocation, std::map<std::string, Import>& imports,
|
||||||
|
std::map<std::string, VAddr>& exports) {
|
||||||
|
for (u64 i = 0; i < size; i += 0x18) {
|
||||||
|
VAddr addr = loadbase + roff + i;
|
||||||
|
u64 offset = Memory::Read64(addr);
|
||||||
|
u64 info = Memory::Read64(addr + 8);
|
||||||
|
u64 addend_unsigned = Memory::Read64(addr + 16);
|
||||||
|
s64 addend{};
|
||||||
|
std::memcpy(&addend, &addend_unsigned, sizeof(u64));
|
||||||
|
|
||||||
|
RelocationType rtype = static_cast<RelocationType>(info & 0xFFFFFFFF);
|
||||||
|
u32 rsym = static_cast<u32>(info >> 32);
|
||||||
|
VAddr ea = loadbase + offset;
|
||||||
|
|
||||||
|
const Symbol& symbol = symbols[rsym];
|
||||||
|
|
||||||
|
switch (rtype) {
|
||||||
|
case RelocationType::RELATIVE:
|
||||||
|
if (!symbol.name.empty()) {
|
||||||
|
exports[symbol.name] = loadbase + addend;
|
||||||
|
}
|
||||||
|
Memory::Write64(ea, loadbase + addend);
|
||||||
|
break;
|
||||||
|
case RelocationType::JUMP_SLOT:
|
||||||
|
case RelocationType::GLOB_DAT:
|
||||||
|
if (!symbol.value) {
|
||||||
|
imports[symbol.name] = {ea, 0};
|
||||||
|
} else {
|
||||||
|
exports[symbol.name] = symbol.value;
|
||||||
|
Memory::Write64(ea, symbol.value);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case RelocationType::ABS64:
|
||||||
|
if (!symbol.value) {
|
||||||
|
imports[symbol.name] = {ea, addend};
|
||||||
|
} else {
|
||||||
|
exports[symbol.name] = symbol.value + addend;
|
||||||
|
Memory::Write64(ea, symbol.value + addend);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
LOG_CRITICAL(Loader, "Unknown relocation type: %d", rtype);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void Relocate(VAddr loadbase, std::map<std::string, Import>& imports,
|
||||||
|
std::map<std::string, VAddr>& exports) {
|
||||||
|
u32 modoff = Memory::Read32(loadbase + 4);
|
||||||
|
ASSERT_MSG(Memory::Read32(loadbase + modoff) == MakeMagic('M', 'O', 'D', '0'),
|
||||||
|
"Expected MOD section");
|
||||||
|
|
||||||
|
u64 dynoff = loadbase + modoff + Memory::Read32(loadbase + modoff + 4);
|
||||||
|
std::map<u64, u64> dynamic;
|
||||||
|
while (1) {
|
||||||
|
u64 tag = Memory::Read64(dynoff);
|
||||||
|
u64 value = Memory::Read64(dynoff + 8);
|
||||||
|
dynoff += 16;
|
||||||
|
|
||||||
|
if (tag == DT_NULL) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
dynamic[tag] = value;
|
||||||
|
}
|
||||||
|
|
||||||
|
u64 strtabsize = dynamic[DT_STRSZ];
|
||||||
|
std::vector<u8> strtab;
|
||||||
|
strtab.resize(strtabsize);
|
||||||
|
Memory::ReadBlock(loadbase + dynamic[DT_STRTAB], strtab.data(), strtabsize);
|
||||||
|
|
||||||
|
VAddr addr = loadbase + dynamic[DT_SYMTAB];
|
||||||
|
std::vector<Symbol> symbols;
|
||||||
|
while (1) {
|
||||||
|
const u32 stname = Memory::Read32(addr);
|
||||||
|
const u16 stshndx = Memory::Read16(addr + 6);
|
||||||
|
const u64 stvalue = Memory::Read64(addr + 8);
|
||||||
|
addr += 24;
|
||||||
|
|
||||||
|
if (stname >= strtabsize) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
std::string name = reinterpret_cast<char*>(&strtab[stname]);
|
||||||
|
if (stvalue) {
|
||||||
|
exports[name] = loadbase + stvalue;
|
||||||
|
symbols.emplace_back(std::move(name), loadbase + stvalue);
|
||||||
|
} else {
|
||||||
|
symbols.emplace_back(std::move(name), 0);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (dynamic.find(DT_RELA) != dynamic.end()) {
|
||||||
|
WriteRelocations(symbols, loadbase, dynamic[DT_RELA], dynamic[DT_RELASZ], false, imports,
|
||||||
|
exports);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (dynamic.find(DT_JMPREL) != dynamic.end()) {
|
||||||
|
WriteRelocations(symbols, loadbase, dynamic[DT_JMPREL], dynamic[DT_PLTRELSZ], true, imports,
|
||||||
|
exports);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static VAddr GetEntryPoint(const std::map<std::string, VAddr>& exports) {
|
||||||
|
// Find nnMain function, set entrypoint to that address
|
||||||
|
const auto& search = exports.find("nnMain");
|
||||||
|
if (search != exports.end()) {
|
||||||
|
return search->second;
|
||||||
|
}
|
||||||
|
return {};
|
||||||
|
}
|
||||||
|
|
||||||
|
static SharedPtr<CodeSet> LoadModule(const std::string& filepath, VAddr loadbase,
|
||||||
|
std::map<std::string, Import>& imports,
|
||||||
|
std::map<std::string, VAddr>& exports) {
|
||||||
|
FileUtil::IOFile file(filepath, "rb");
|
||||||
|
|
||||||
|
if (!file.IsOpen())
|
||||||
|
return {};
|
||||||
|
|
||||||
|
NsoHeader header{};
|
||||||
|
file.Seek(0, SEEK_SET);
|
||||||
|
if (sizeof(NsoHeader) != file.ReadBytes(&header, sizeof(NsoHeader)))
|
||||||
|
return {};
|
||||||
|
|
||||||
|
// Build program image
|
||||||
|
SharedPtr<CodeSet> codeset = CodeSet::Create("", 0);
|
||||||
|
std::vector<u8> program_image;
|
||||||
|
for (int i = 0; i < header.segments.size(); ++i) {
|
||||||
|
std::vector<u8> data =
|
||||||
|
ReadSegment(file, header.segments[i], header.segments_compressed_size[i]);
|
||||||
|
program_image.resize(header.segments[i].location);
|
||||||
|
program_image.insert(program_image.end(), data.begin(), data.end());
|
||||||
|
codeset->segments[i].addr = header.segments[i].location;
|
||||||
|
codeset->segments[i].offset = header.segments[i].location;
|
||||||
|
codeset->segments[i].size = (data.size() + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
|
||||||
|
}
|
||||||
|
program_image.resize((program_image.size() + Memory::PAGE_MASK) & ~Memory::PAGE_MASK);
|
||||||
|
|
||||||
|
codeset->name = filepath;
|
||||||
|
codeset->entrypoint = 0; // Set after relocation
|
||||||
|
codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image));
|
||||||
|
|
||||||
|
return codeset;
|
||||||
|
}
|
||||||
|
|
||||||
|
ResultStatus AppLoader_NSO::Load() {
|
||||||
|
if (is_loaded)
|
||||||
|
return ResultStatus::ErrorAlreadyLoaded;
|
||||||
|
|
||||||
|
if (!file.IsOpen())
|
||||||
|
return ResultStatus::Error;
|
||||||
|
|
||||||
|
static constexpr VAddr loadbase = 0x7100000000;
|
||||||
|
std::map<std::string, Import> imports;
|
||||||
|
std::map<std::string, VAddr> exports;
|
||||||
|
|
||||||
|
// Load and relocate "main" NSO
|
||||||
|
auto codeset = LoadModule(filepath, loadbase, imports, exports);
|
||||||
|
Kernel::g_current_process = Kernel::Process::Create(codeset);
|
||||||
|
Kernel::g_current_process->svc_access_mask.set();
|
||||||
|
Kernel::g_current_process->address_mappings = default_address_mappings;
|
||||||
|
Kernel::g_current_process->resource_limit =
|
||||||
|
Kernel::ResourceLimit::GetForCategory(Kernel::ResourceLimitCategory::APPLICATION);
|
||||||
|
Kernel::g_current_process->LoadModule(codeset, loadbase);
|
||||||
|
Relocate(loadbase, imports, exports);
|
||||||
|
codeset->entrypoint = GetEntryPoint(exports);
|
||||||
|
Kernel::g_current_process->Run(48, Kernel::DEFAULT_STACK_SIZE);
|
||||||
|
|
||||||
|
// Load and relocate "sdk" NSO
|
||||||
|
static constexpr VAddr sdkbase = 0x7200000000;
|
||||||
|
const std::string sdkpath = filepath.substr(0, filepath.find_last_of("/\\")) + "/sdk";
|
||||||
|
auto sdk_codeset = LoadModule(sdkpath, sdkbase, imports, exports);
|
||||||
|
Kernel::g_current_process->LoadModule(sdk_codeset, sdkbase);
|
||||||
|
Relocate(sdkbase, imports, exports);
|
||||||
|
|
||||||
|
// Resolve imports
|
||||||
|
for (const auto& import : imports) {
|
||||||
|
const auto& search = exports.find(import.first);
|
||||||
|
if (search != exports.end()) {
|
||||||
|
Memory::Write64(import.second.ea, search->second + import.second.addend);
|
||||||
|
} else {
|
||||||
|
LOG_CRITICAL(Loader, "Unresolved import: %s", import.first.c_str());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
is_loaded = true;
|
||||||
|
return ResultStatus::Success;
|
||||||
|
}
|
||||||
|
|
||||||
|
} // namespace Loader
|
38
src/core/loader/nso.h
Normal file
38
src/core/loader/nso.h
Normal file
@ -0,0 +1,38 @@
|
|||||||
|
// Copyright 2017 Citra Emulator Project
|
||||||
|
// Licensed under GPLv2 or any later version
|
||||||
|
// Refer to the license.txt file included.
|
||||||
|
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
#include <string>
|
||||||
|
#include "common/common_types.h"
|
||||||
|
#include "common/file_util.h"
|
||||||
|
#include "core/loader/loader.h"
|
||||||
|
|
||||||
|
namespace Loader {
|
||||||
|
|
||||||
|
/// Loads an NSO file
|
||||||
|
class AppLoader_NSO final : public AppLoader {
|
||||||
|
public:
|
||||||
|
AppLoader_NSO(FileUtil::IOFile&& file, std::string filename, std::string filepath)
|
||||||
|
: AppLoader(std::move(file)), filename(std::move(filename)), filepath(std::move(filepath)) {}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Returns the type of the file
|
||||||
|
* @param file FileUtil::IOFile open file
|
||||||
|
* @return FileType found, or FileType::Error if this loader doesn't know it
|
||||||
|
*/
|
||||||
|
static FileType IdentifyType(FileUtil::IOFile& file);
|
||||||
|
|
||||||
|
FileType GetFileType() override {
|
||||||
|
return IdentifyType(file);
|
||||||
|
}
|
||||||
|
|
||||||
|
ResultStatus Load() override;
|
||||||
|
|
||||||
|
private:
|
||||||
|
std::string filename;
|
||||||
|
std::string filepath;
|
||||||
|
};
|
||||||
|
|
||||||
|
} // namespace Loader
|
Loading…
Reference in New Issue
Block a user