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-rw-r--r--src/core/loader/elf.cpp1
-rw-r--r--src/core/loader/linker.cpp147
-rw-r--r--src/core/loader/linker.h36
-rw-r--r--src/core/loader/nro.cpp1
-rw-r--r--src/core/loader/nro.h4
-rw-r--r--src/core/loader/nso.cpp114
-rw-r--r--src/core/loader/nso.h43
7 files changed, 100 insertions, 246 deletions
diff --git a/src/core/loader/elf.cpp b/src/core/loader/elf.cpp
index 6057c7f26..8b1920f22 100644
--- a/src/core/loader/elf.cpp
+++ b/src/core/loader/elf.cpp
@@ -9,6 +9,7 @@
#include "common/common_types.h"
#include "common/file_util.h"
#include "common/logging/log.h"
+#include "core/hle/kernel/code_set.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/elf.h"
diff --git a/src/core/loader/linker.cpp b/src/core/loader/linker.cpp
deleted file mode 100644
index 57ca8c3ee..000000000
--- a/src/core/loader/linker.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <vector>
-
-#include "common/common_funcs.h"
-#include "common/logging/log.h"
-#include "common/swap.h"
-#include "core/loader/linker.h"
-#include "core/memory.h"
-
-namespace Loader {
-
-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,
-};
-
-struct Elf64_Rela {
- u64_le offset;
- RelocationType type;
- u32_le symbol;
- s64_le addend;
-};
-static_assert(sizeof(Elf64_Rela) == 0x18, "Elf64_Rela has incorrect size.");
-
-struct Elf64_Dyn {
- u64_le tag;
- u64_le value;
-};
-static_assert(sizeof(Elf64_Dyn) == 0x10, "Elf64_Dyn has incorrect size.");
-
-struct Elf64_Sym {
- u32_le name;
- INSERT_PADDING_BYTES(0x2);
- u16_le shndx;
- u64_le value;
- u64_le size;
-};
-static_assert(sizeof(Elf64_Sym) == 0x18, "Elf64_Sym has incorrect size.");
-
-void Linker::WriteRelocations(std::vector<u8>& program_image, const std::vector<Symbol>& symbols,
- u64 relocation_offset, u64 size, VAddr load_base) {
- for (u64 i = 0; i < size; i += sizeof(Elf64_Rela)) {
- Elf64_Rela rela;
- std::memcpy(&rela, &program_image[relocation_offset + i], sizeof(Elf64_Rela));
-
- const Symbol& symbol = symbols[rela.symbol];
- switch (rela.type) {
- case RelocationType::RELATIVE: {
- const u64 value = load_base + rela.addend;
- if (!symbol.name.empty()) {
- exports[symbol.name] = value;
- }
- std::memcpy(&program_image[rela.offset], &value, sizeof(u64));
- break;
- }
- case RelocationType::JUMP_SLOT:
- case RelocationType::GLOB_DAT:
- if (!symbol.value) {
- imports[symbol.name] = {rela.offset + load_base, 0};
- } else {
- exports[symbol.name] = symbol.value;
- std::memcpy(&program_image[rela.offset], &symbol.value, sizeof(u64));
- }
- break;
- case RelocationType::ABS64:
- if (!symbol.value) {
- imports[symbol.name] = {rela.offset + load_base, rela.addend};
- } else {
- const u64 value = symbol.value + rela.addend;
- exports[symbol.name] = value;
- std::memcpy(&program_image[rela.offset], &value, sizeof(u64));
- }
- break;
- default:
- LOG_CRITICAL(Loader, "Unknown relocation type: {}", static_cast<int>(rela.type));
- break;
- }
- }
-}
-
-void Linker::Relocate(std::vector<u8>& program_image, u32 dynamic_section_offset, VAddr load_base) {
- std::map<u64, u64> dynamic;
- while (dynamic_section_offset < program_image.size()) {
- Elf64_Dyn dyn;
- std::memcpy(&dyn, &program_image[dynamic_section_offset], sizeof(Elf64_Dyn));
- dynamic_section_offset += sizeof(Elf64_Dyn);
-
- if (dyn.tag == DT_NULL) {
- break;
- }
- dynamic[dyn.tag] = dyn.value;
- }
-
- u64 offset = dynamic[DT_SYMTAB];
- std::vector<Symbol> symbols;
- while (offset < program_image.size()) {
- Elf64_Sym sym;
- std::memcpy(&sym, &program_image[offset], sizeof(Elf64_Sym));
- offset += sizeof(Elf64_Sym);
-
- if (sym.name >= dynamic[DT_STRSZ]) {
- break;
- }
-
- std::string name = reinterpret_cast<char*>(&program_image[dynamic[DT_STRTAB] + sym.name]);
- if (sym.value) {
- exports[name] = load_base + sym.value;
- symbols.emplace_back(std::move(name), load_base + sym.value);
- } else {
- symbols.emplace_back(std::move(name), 0);
- }
- }
-
- if (dynamic.find(DT_RELA) != dynamic.end()) {
- WriteRelocations(program_image, symbols, dynamic[DT_RELA], dynamic[DT_RELASZ], load_base);
- }
-
- if (dynamic.find(DT_JMPREL) != dynamic.end()) {
- WriteRelocations(program_image, symbols, dynamic[DT_JMPREL], dynamic[DT_PLTRELSZ],
- load_base);
- }
-}
-
-void Linker::ResolveImports() {
- // 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_ERROR(Loader, "Unresolved import: {}", import.first);
- }
- }
-}
-
-} // namespace Loader
diff --git a/src/core/loader/linker.h b/src/core/loader/linker.h
deleted file mode 100644
index 107625837..000000000
--- a/src/core/loader/linker.h
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <map>
-#include <string>
-#include "common/common_types.h"
-
-namespace Loader {
-
-class Linker {
-protected:
- 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;
- };
-
- void WriteRelocations(std::vector<u8>& program_image, const std::vector<Symbol>& symbols,
- u64 relocation_offset, u64 size, VAddr load_base);
- void Relocate(std::vector<u8>& program_image, u32 dynamic_section_offset, VAddr load_base);
-
- void ResolveImports();
-
- std::map<std::string, Import> imports;
- std::map<std::string, VAddr> exports;
-};
-
-} // namespace Loader
diff --git a/src/core/loader/nro.cpp b/src/core/loader/nro.cpp
index 4fad0c0dd..5de02a94b 100644
--- a/src/core/loader/nro.cpp
+++ b/src/core/loader/nro.cpp
@@ -14,6 +14,7 @@
#include "core/file_sys/romfs_factory.h"
#include "core/file_sys/vfs_offset.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/hle/service/filesystem/filesystem.h"
diff --git a/src/core/loader/nro.h b/src/core/loader/nro.h
index 013d629c0..85b0ed644 100644
--- a/src/core/loader/nro.h
+++ b/src/core/loader/nro.h
@@ -4,10 +4,10 @@
#pragma once
+#include <memory>
#include <string>
#include <vector>
#include "common/common_types.h"
-#include "core/loader/linker.h"
#include "core/loader/loader.h"
namespace FileSys {
@@ -21,7 +21,7 @@ class Process;
namespace Loader {
/// Loads an NRO file
-class AppLoader_NRO final : public AppLoader, Linker {
+class AppLoader_NRO final : public AppLoader {
public:
explicit AppLoader_NRO(FileSys::VirtualFile file);
~AppLoader_NRO() override;
diff --git a/src/core/loader/nso.cpp b/src/core/loader/nso.cpp
index 6ded0b707..714d85a59 100644
--- a/src/core/loader/nso.cpp
+++ b/src/core/loader/nso.cpp
@@ -7,10 +7,13 @@
#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/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 +21,8 @@
#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;
@@ -56,25 +31,10 @@ 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.");
-
-AppLoader_NSO::AppLoader_NSO(FileSys::VirtualFile file) : AppLoader(std::move(file)) {}
+static_assert(sizeof(MODHeader) == 0x1c, "MODHeader has incorrect size.");
-FileType AppLoader_NSO::IdentifyType(const FileSys::VirtualFile& file) {
- u32 magic = 0;
- if (file->ReadObject(&magic) != sizeof(magic)) {
- return FileType::Error;
- }
-
- if (Common::MakeMagic('N', 'S', 'O', '0') != magic) {
- return FileType::Error;
- }
-
- return FileType::NSO;
-}
-
-static std::vector<u8> DecompressSegment(const std::vector<u8>& compressed_data,
- const NsoSegmentHeader& header) {
+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()),
@@ -88,23 +48,47 @@ static std::vector<u8> DecompressSegment(const std::vector<u8>& compressed_data,
return uncompressed_data;
}
-static constexpr u32 PageAlignSize(u32 size) {
+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)) {}
+
+FileType AppLoader_NSO::IdentifyType(const FileSys::VirtualFile& file) {
+ u32 magic = 0;
+ if (file->ReadObject(&magic) != sizeof(magic)) {
+ return FileType::Error;
+ }
+
+ if (Common::MakeMagic('N', 'S', 'O', '0') != magic) {
+ return FileType::Error;
+ }
+
+ return FileType::NSO;
+}
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 +124,10 @@ 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
@@ -155,13 +139,25 @@ 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(sizeof(NSOHeader) + program_image.size());
+ 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);
- 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::HexArrayToString(nso_header.build_id),
+ load_base, load_base + program_image.size());
+ }
}
// Load codeset for current process
diff --git a/src/core/loader/nso.h b/src/core/loader/nso.h
index 135b6ea5a..4674c3724 100644
--- a/src/core/loader/nso.h
+++ b/src/core/loader/nso.h
@@ -4,10 +4,12 @@
#pragma once
+#include <array>
#include <optional>
+#include <type_traits>
#include "common/common_types.h"
+#include "common/swap.h"
#include "core/file_sys/patch_manager.h"
-#include "core/loader/linker.h"
#include "core/loader/loader.h"
namespace Kernel {
@@ -16,6 +18,43 @@ class Process;
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 {
+ using SHA256Hash = std::array<u8, 0x20>;
+
+ struct RODataRelativeExtent {
+ u32_le data_offset;
+ u32_le size;
+ };
+
+ u32_le magic;
+ u32_le version;
+ u32 reserved;
+ u32_le 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;
+ std::array<u8, 0x1C> padding;
+ RODataRelativeExtent api_info_extent;
+ RODataRelativeExtent dynstr_extent;
+ RODataRelativeExtent dynsyn_extent;
+ std::array<SHA256Hash, 3> segment_hashes;
+
+ bool IsSegmentCompressed(size_t segment_num) const;
+};
+static_assert(sizeof(NSOHeader) == 0x100, "NSOHeader has incorrect size.");
+static_assert(std::is_trivially_copyable_v<NSOHeader>, "NSOHeader must be trivially copyable.");
+
constexpr u64 NSO_ARGUMENT_DATA_ALLOCATION_SIZE = 0x9000;
struct NSOArgumentHeader {
@@ -26,7 +65,7 @@ struct NSOArgumentHeader {
static_assert(sizeof(NSOArgumentHeader) == 0x20, "NSOArgumentHeader has incorrect size.");
/// Loads an NSO file
-class AppLoader_NSO final : public AppLoader, Linker {
+class AppLoader_NSO final : public AppLoader {
public:
explicit AppLoader_NSO(FileSys::VirtualFile file);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 22:53:05 +0100