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citra/src/core/hle/service/ldr_ro.cpp
wwylele 0cec1cf59b LDR fixup !=0
2016-08-16 11:34:33 +08:00

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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/alignment.h"
#include "common/common_types.h"
#include "common/logging/log.h"
#include "common/scope_exit.h"
#include "common/swap.h"
#include "core/arm/arm_interface.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/hle/service/ldr_ro.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace LDR_RO
namespace LDR_RO {
// GCC versions < 5.0 do not implement std::is_trivially_copyable.
// Excluding MSVC because it has weird behaviour for std::is_trivially_copyable.
#if (__GNUC__ >= 5) || defined(__clang__)
#define ASSERT_CRO_STRUCT(name, size) \
static_assert(std::is_standard_layout<name>::value, "CRO structure " #name " doesn't use standard layout"); \
static_assert(std::is_trivially_copyable<name>::value, "CRO structure " #name " isn't trivially copyable"); \
static_assert(sizeof(name) == (size), "Unexpected struct size for CRO structure " #name)
#else
#define ASSERT_CRO_STRUCT(name, size) \
static_assert(std::is_standard_layout<name>::value, "CRO structure " #name " doesn't use standard layout"); \
static_assert(sizeof(name) == (size), "Unexpected struct size for CRO structure " #name)
#endif
static constexpr u32 CRO_HEADER_SIZE = 0x138;
static constexpr u32 CRO_HASH_SIZE = 0x80;
static const ResultCode ERROR_ALREADY_INITIALIZED = // 0xD9612FF9
ResultCode(ErrorDescription::AlreadyInitialized, ErrorModule::RO, ErrorSummary::Internal, ErrorLevel::Permanent);
static const ResultCode ERROR_NOT_INITIALIZED = // 0xD9612FF8
ResultCode(ErrorDescription::NotInitialized, ErrorModule::RO, ErrorSummary::Internal, ErrorLevel::Permanent);
static const ResultCode ERROR_BUFFER_TOO_SMALL = // 0xE0E12C1F
ResultCode(static_cast<ErrorDescription>(31), ErrorModule::RO, ErrorSummary::InvalidArgument, ErrorLevel::Usage);
static const ResultCode ERROR_MISALIGNED_ADDRESS = // 0xD9012FF1
ResultCode(ErrorDescription::MisalignedAddress, ErrorModule::RO, ErrorSummary::WrongArgument, ErrorLevel::Permanent);
static const ResultCode ERROR_MISALIGNED_SIZE = // 0xD9012FF2
ResultCode(ErrorDescription::MisalignedSize, ErrorModule::RO, ErrorSummary::WrongArgument, ErrorLevel::Permanent);
static const ResultCode ERROR_ILLEGAL_ADDRESS = // 0xE1612C0F
ResultCode(static_cast<ErrorDescription>(15), ErrorModule::RO, ErrorSummary::Internal, ErrorLevel::Usage);
static const ResultCode ERROR_INVALID_MEMORY_STATE = // 0xD8A12C08
ResultCode(static_cast<ErrorDescription>(8), ErrorModule::RO, ErrorSummary::InvalidState, ErrorLevel::Permanent);
static const ResultCode ERROR_NOT_LOADED = // 0xD8A12C0D
ResultCode(static_cast<ErrorDescription>(13), ErrorModule::RO, ErrorSummary::InvalidState, ErrorLevel::Permanent);
static const ResultCode ERROR_INVALID_DESCRIPTOR = // 0xD9001830
ResultCode(ErrorDescription::OS_InvalidBufferDescriptor, ErrorModule::OS, ErrorSummary::WrongArgument, ErrorLevel::Permanent);
static ResultCode CROFormatError(u32 description) {
return ResultCode(static_cast<ErrorDescription>(description), ErrorModule::RO, ErrorSummary::WrongArgument, ErrorLevel::Permanent);
}
/// Represents a loaded module (CRO) with interfaces manipulating it.
class CROHelper final {
const VAddr module_address; ///< the virtual address of this module
/**
* Each item in this enum represents a u32 field in the header begin from address+0x80, successively.
* We don't directly use a struct here, to avoid GetPointer, reinterpret_cast, or Read/WriteBlock repeatedly.
*/
enum HeaderField {
Magic = 0,
NameOffset,
NextCRO,
PreviousCRO,
FileSize,
BssSize,
FixedSize,
UnknownZero,
UnkSegmentTag,
OnLoadSegmentTag,
OnExitSegmentTag,
OnUnresolvedSegmentTag,
CodeOffset,
CodeSize,
DataOffset,
DataSize,
ModuleNameOffset,
ModuleNameSize,
SegmentTableOffset,
SegmentNum,
ExportNamedSymbolTableOffset,
ExportNamedSymbolNum,
ExportIndexedSymbolTableOffset,
ExportIndexedSymbolNum,
ExportStringsOffset,
ExportStringsSize,
ExportTreeTableOffset,
ExportTreeNum,
ImportModuleTableOffset,
ImportModuleNum,
ExternalPatchTableOffset,
ExternalPatchNum,
ImportNamedSymbolTableOffset,
ImportNamedSymbolNum,
ImportIndexedSymbolTableOffset,
ImportIndexedSymbolNum,
ImportAnonymousSymbolTableOffset,
ImportAnonymousSymbolNum,
ImportStringsOffset,
ImportStringsSize,
StaticAnonymousSymbolTableOffset,
StaticAnonymousSymbolNum,
InternalPatchTableOffset,
InternalPatchNum,
StaticPatchTableOffset,
StaticPatchNum,
Fix0Barrier,
Fix3Barrier = ExportNamedSymbolTableOffset,
Fix2Barrier = ImportModuleTableOffset,
Fix1Barrier = StaticAnonymousSymbolTableOffset,
};
static_assert(Fix0Barrier == (CRO_HEADER_SIZE - CRO_HASH_SIZE) / 4, "CRO Header fields are wrong!");
enum class SegmentType : u32 {
Code = 0,
ROData = 1,
Data = 2,
BSS = 3,
};
/**
* Identifies a program location inside of a segment.
* Required to refer to program locations because individual segments may be relocated independently of each other.
*/
union SegmentTag {
u32_le raw;
BitField<0, 4, u32_le> segment_index;
BitField<4, 28, u32_le> offset_into_segment;
SegmentTag() = default;
explicit SegmentTag(u32 raw_) : raw(raw_) {}
};
/// Information of a segment in this module.
struct SegmentEntry {
u32_le offset;
u32_le size;
SegmentType type;
static constexpr HeaderField TABLE_OFFSET_FIELD = SegmentTableOffset;
};
ASSERT_CRO_STRUCT(SegmentEntry, 12);
/// Identifies a named symbol exported from this module.
struct ExportNamedSymbolEntry {
u32_le name_offset; // pointing to a substring in ExportStrings
SegmentTag symbol_position; // to self's segment
static constexpr HeaderField TABLE_OFFSET_FIELD = ExportNamedSymbolTableOffset;
};
ASSERT_CRO_STRUCT(ExportNamedSymbolEntry, 8);
/// Identifies an indexed symbol exported from this module.
struct ExportIndexedSymbolEntry {
SegmentTag symbol_position; // to self's segment
static constexpr HeaderField TABLE_OFFSET_FIELD = ExportIndexedSymbolTableOffset;
};
ASSERT_CRO_STRUCT(ExportIndexedSymbolEntry, 4);
/// A tree node in the symbol lookup tree.
struct ExportTreeEntry {
u16_le test_bit; // bit address into the name to test
union Child {
u16_le raw;
BitField<0, 15, u16_le> next_index;
BitField<15, 1, u16_le> is_end;
} left, right;
u16_le export_table_index; // index of an ExportNamedSymbolEntry
static constexpr HeaderField TABLE_OFFSET_FIELD = ExportTreeTableOffset;
};
ASSERT_CRO_STRUCT(ExportTreeEntry, 8);
/// Identifies a named symbol imported from another module.
struct ImportNamedSymbolEntry {
u32_le name_offset; // pointing to a substring in ImportStrings
u32_le patch_batch_offset; // pointing to a patch batch in ExternalPatchTable
static constexpr HeaderField TABLE_OFFSET_FIELD = ImportNamedSymbolTableOffset;
};
ASSERT_CRO_STRUCT(ImportNamedSymbolEntry, 8);
/// Identifies an indexed symbol imported from another module.
struct ImportIndexedSymbolEntry {
u32_le index; // index of an ExportIndexedSymbolEntry in the exporting module
u32_le patch_batch_offset; // pointing to a patch batch in ExternalPatchTable
static constexpr HeaderField TABLE_OFFSET_FIELD = ImportIndexedSymbolTableOffset;
};
ASSERT_CRO_STRUCT(ImportIndexedSymbolEntry, 8);
/// Identifies an anonymous symbol imported from another module.
struct ImportAnonymousSymbolEntry {
SegmentTag symbol_position; // in the exporting segment
u32_le patch_batch_offset; // pointing to a patch batch in ExternalPatchTable
static constexpr HeaderField TABLE_OFFSET_FIELD = ImportAnonymousSymbolTableOffset;
};
ASSERT_CRO_STRUCT(ImportAnonymousSymbolEntry, 8);
/// Information of a imported module and symbols imported from it.
struct ImportModuleEntry {
u32_le name_offset; // pointing to a substring in ImportStrings
u32_le import_indexed_symbol_table_offset; // pointing to a subtable in ImportIndexedSymbolTable
u32_le import_indexed_symbol_num;
u32_le import_anonymous_symbol_table_offset; // pointing to a subtable in ImportAnonymousSymbolTable
u32_le import_anonymous_symbol_num;
static constexpr HeaderField TABLE_OFFSET_FIELD = ImportModuleTableOffset;
void GetImportIndexedSymbolEntry(u32 index, ImportIndexedSymbolEntry& entry) {
Memory::ReadBlock(import_indexed_symbol_table_offset + index * sizeof(ImportIndexedSymbolEntry),
&entry, sizeof(ImportIndexedSymbolEntry));
}
void GetImportAnonymousSymbolEntry(u32 index, ImportAnonymousSymbolEntry& entry) {
Memory::ReadBlock(import_anonymous_symbol_table_offset + index * sizeof(ImportAnonymousSymbolEntry),
&entry, sizeof(ImportAnonymousSymbolEntry));
}
};
ASSERT_CRO_STRUCT(ImportModuleEntry, 20);
enum class PatchType : u8 {
Nothing = 0,
AbsoluteAddress = 2,
RelativeAddress = 3,
ThumbBranch = 10,
ArmBranch = 28,
ModifyArmBranch = 29,
AbsoluteAddress2 = 38,
AlignedRelativeAddress = 42,
};
struct PatchEntry {
SegmentTag target_position; // to self's segment as an ExternalPatchEntry; to static module segment as a StaticPatchEntry
PatchType type;
u8 is_batch_end;
u8 is_batch_resolved; // set at a batch beginning if the batch is resolved
INSERT_PADDING_BYTES(1);
u32_le shift;
};
/// Identifies a normal cross-module patch.
struct ExternalPatchEntry : PatchEntry {
static constexpr HeaderField TABLE_OFFSET_FIELD = ExternalPatchTableOffset;
};
ASSERT_CRO_STRUCT(ExternalPatchEntry, 12);
/// Identifies a special static patch (no game is known using this).
struct StaticPatchEntry : PatchEntry {
static constexpr HeaderField TABLE_OFFSET_FIELD = StaticPatchTableOffset;
};
ASSERT_CRO_STRUCT(StaticPatchEntry, 12);
/// Identifies a in-module patch.
struct InternalPatchEntry {
SegmentTag target_position; // to self's segment
PatchType type;
u8 symbol_segment;
INSERT_PADDING_BYTES(2);
u32_le shift;
static constexpr HeaderField TABLE_OFFSET_FIELD = InternalPatchTableOffset;
};
ASSERT_CRO_STRUCT(InternalPatchEntry, 12);
/// Identifies a special static anonymous symbol (no game is known using this).
struct StaticAnonymousSymbolEntry {
SegmentTag symbol_position; // to self's segment
u32_le patch_batch_offset; // pointing to a patch batch in StaticPatchTable
static constexpr HeaderField TABLE_OFFSET_FIELD = StaticAnonymousSymbolTableOffset;
};
ASSERT_CRO_STRUCT(StaticAnonymousSymbolEntry, 8);
/**
* Entry size of each table, from Code to StaticPatchTable.
* Byte string contents (such as Code) are treated with entries of size 1.
* This is used for verifying the size of each table and calculating the fix end.
*/
static const std::array<int, 17> ENTRY_SIZE;
/// The offset field of the table where to crop for each fix level
static const std::array<HeaderField, 4> FIX_BARRIERS;
static constexpr u32 MAGIC_CRO0 = 0x304F5243;
static constexpr u32 MAGIC_FIXD = 0x44584946;
VAddr Field(HeaderField field) const {
return module_address + CRO_HASH_SIZE + field * 4;
}
u32 GetField(HeaderField field) const {
return Memory::Read32(Field(field));
}
void SetField(HeaderField field, u32 value) {
Memory::Write32(Field(field), value);
}
/**
* Reads an entry in one of module tables.
* @param index index of the entry
* @param data where to put the read entry
* @note the entry type must have the static member TABLE_OFFSET_FIELD
* indicating which table the entry is in.
*/
template <typename T>
void GetEntry(std::size_t index, T& data) const {
Memory::ReadBlock(GetField(T::TABLE_OFFSET_FIELD) + index * sizeof(T), &data, sizeof(T));
}
/**
* Writes an entry to one of module tables.
* @param index index of the entry
* @param data the entry data to write
* @note the entry type must have the static member TABLE_OFFSET_FIELD
* indicating which table the entry is in.
*/
template <typename T>
void SetEntry(std::size_t index, const T& data) {
Memory::WriteBlock(GetField(T::TABLE_OFFSET_FIELD) + index * sizeof(T), &data, sizeof(T));
}
/**
* Converts a segment tag to virtual address in this module.
* @param segment_tag the segment tag to convert
* @returns VAddr the virtual address the segment tag points to; 0 if invalid.
*/
VAddr SegmentTagToAddress(SegmentTag segment_tag) const {
u32 segment_num = GetField(SegmentNum);
if (segment_tag.segment_index >= segment_num)
return 0;
SegmentEntry entry;
GetEntry(segment_tag.segment_index, entry);
if (segment_tag.offset_into_segment >= entry.size)
return 0;
return entry.offset + segment_tag.offset_into_segment;
}
VAddr NextModule() const {
return GetField(NextCRO);
}
VAddr PreviousModule() const {
return GetField(PreviousCRO);
}
void SetNextModule(VAddr next) {
SetField(NextCRO, next);
}
void SetPreviousModule(VAddr previous) {
SetField(PreviousCRO, previous);
}
/**
* A helper function iterating over all registered auto-link modules, including the static module.
* @param crs_address the virtual address of the static module
* @param func a function object to operate on a module. It accepts one parameter
* CROHelper and returns ResultVal<bool>. It should return true to continue the iteration,
* false to stop the iteration, or an error code (which will also stop the iteration).
* @returns ResultCode indicating the result of the operation, RESULT_SUCCESS if all iteration success,
* otherwise error code of the last iteration.
*/
template <typename FunctionObject>
static ResultCode ForEachAutoLinkCRO(VAddr crs_address, FunctionObject func) {
VAddr current = crs_address;
while (current != 0) {
CROHelper cro(current);
CASCADE_RESULT(bool next, func(cro));
if (!next)
break;
current = cro.NextModule();
}
return RESULT_SUCCESS;
}
/**
* Applies a patch
* @param target_address where to apply the patch
* @param patch_type the type of the patch
* @param shift address shift apply to the patched symbol
* @param symbol_address the symbol address to be patched with
* @param target_future_address the future address of the target.
* Usually equals to target_address, but will be different for a target in .data segment
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ApplyPatch(VAddr target_address, PatchType patch_type, u32 shift, u32 symbol_address, u32 target_future_address) {
switch (patch_type) {
case PatchType::Nothing:
break;
case PatchType::AbsoluteAddress:
case PatchType::AbsoluteAddress2:
Memory::Write32(target_address, symbol_address + shift);
break;
case PatchType::RelativeAddress:
Memory::Write32(target_address, symbol_address + shift - target_future_address);
break;
case PatchType::ThumbBranch:
case PatchType::ArmBranch:
case PatchType::ModifyArmBranch:
case PatchType::AlignedRelativeAddress:
// TODO(wwylele): implement other types
UNIMPLEMENTED();
break;
default:
return CROFormatError(0x22);
}
return RESULT_SUCCESS;
}
/**
* Clears a patch to zero
* @param target_address where to apply the patch
* @param patch_type the type of the patch
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ClearPatch(VAddr target_address, PatchType patch_type) {
switch (patch_type) {
case PatchType::Nothing:
break;
case PatchType::AbsoluteAddress:
case PatchType::AbsoluteAddress2:
case PatchType::RelativeAddress:
Memory::Write32(target_address, 0);
break;
case PatchType::ThumbBranch:
case PatchType::ArmBranch:
case PatchType::ModifyArmBranch:
case PatchType::AlignedRelativeAddress:
// TODO(wwylele): implement other types
UNIMPLEMENTED();
break;
default:
return CROFormatError(0x22);
}
return RESULT_SUCCESS;
}
/**
* Applies or resets a batch of patch
* @param batch the virtual address of the first patch in the batch
* @param symbol_address the symbol address to be patched with
* @param reset false to set the batch to resolved state, true to reset the batch to unresolved state
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ApplyPatchBatch(VAddr batch, u32 symbol_address, bool reset = false) {
if (symbol_address == 0 && !reset)
return CROFormatError(0x10);
VAddr patch_address = batch;
while (true) {
PatchEntry patch;
Memory::ReadBlock(patch_address, &patch, sizeof(PatchEntry));
VAddr patch_target = SegmentTagToAddress(patch.target_position);
if (patch_target == 0) {
return CROFormatError(0x12);
}
ResultCode result = ApplyPatch(patch_target, patch.type, patch.shift, symbol_address, patch_target);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch %08X", result.raw);
return result;
}
if (patch.is_batch_end)
break;
patch_address += sizeof(PatchEntry);
}
PatchEntry patch;
Memory::ReadBlock(batch, &patch, sizeof(PatchEntry));
patch.is_batch_resolved = reset ? 0 : 1;
Memory::WriteBlock(batch, &patch, sizeof(PatchEntry));
return RESULT_SUCCESS;
}
/**
* Finds an exported named symbol in this module.
* @param name the name of the symbol to find
* @return VAddr the virtual address of the symbol; 0 if not found.
*/
VAddr FindExportNamedSymbol(const std::string& name) const {
if (!GetField(ExportTreeNum))
return 0;
std::size_t len = name.size();
ExportTreeEntry entry;
GetEntry(0, entry);
ExportTreeEntry::Child next;
next.raw = entry.left.raw;
u32 found_id;
while (true) {
GetEntry(next.next_index, entry);
if (next.is_end) {
found_id = entry.export_table_index;
break;
}
u16 test_byte = entry.test_bit >> 3;
u16 test_bit_in_byte = entry.test_bit & 7;
if (test_byte >= len) {
next.raw = entry.left.raw;
} else if((name[test_byte] >> test_bit_in_byte) & 1) {
next.raw = entry.right.raw;
} else {
next.raw = entry.left.raw;
}
}
u32 export_named_symbol_num = GetField(ExportNamedSymbolNum);
if (found_id >= export_named_symbol_num)
return 0;
u32 export_strings_size = GetField(ExportStringsSize);
ExportNamedSymbolEntry symbol_entry;
GetEntry(found_id, symbol_entry);
if (Memory::ReadCString(symbol_entry.name_offset, export_strings_size) != name)
return 0;
return SegmentTagToAddress(symbol_entry.symbol_position);
}
/**
* Rebases offsets in module header according to module address.
* @param cro_size the size of the CRO file
* @returns ResultCode RESULT_SUCCESS if all offsets are verified as valid, otherwise error code.
*/
ResultCode RebaseHeader(u32 cro_size) {
ResultCode error = CROFormatError(0x11);
// verifies magic
if (GetField(Magic) != MAGIC_CRO0)
return error;
// verifies not registered
if (GetField(NextCRO) != 0 || GetField(PreviousCRO) != 0)
return error;
// This seems to be a hard limit set by the RO module
if (GetField(FileSize) > 0x10000000 || GetField(BssSize) > 0x10000000)
return error;
// verifies not fixed
if (GetField(FixedSize) != 0)
return error;
if (GetField(CodeOffset) < CRO_HEADER_SIZE)
return error;
// verifies that all offsets are in the correct order
constexpr std::array<HeaderField, 18> OFFSET_ORDER = {{
CodeOffset,
ModuleNameOffset,
SegmentTableOffset,
ExportNamedSymbolTableOffset,
ExportTreeTableOffset,
ExportIndexedSymbolTableOffset,
ExportStringsOffset,
ImportModuleTableOffset,
ExternalPatchTableOffset,
ImportNamedSymbolTableOffset,
ImportIndexedSymbolTableOffset,
ImportAnonymousSymbolTableOffset,
ImportStringsOffset,
StaticAnonymousSymbolTableOffset,
InternalPatchTableOffset,
StaticPatchTableOffset,
DataOffset,
FileSize
}};
u32 prev_offset = GetField(OFFSET_ORDER[0]);
u32 cur_offset;
for (std::size_t i = 1; i < OFFSET_ORDER.size(); ++i) {
cur_offset = GetField(OFFSET_ORDER[i]);
if (cur_offset < prev_offset)
return error;
prev_offset = cur_offset;
}
// rebases offsets
u32 offset = GetField(NameOffset);
if (offset != 0)
SetField(NameOffset, offset + module_address);
for (int field = CodeOffset; field < Fix0Barrier; field += 2) {
HeaderField header_field = static_cast<HeaderField>(field);
offset = GetField(header_field);
if (offset != 0)
SetField(header_field, offset + module_address);
}
// verifies everything is not beyond the buffer
u32 file_end = module_address + cro_size;
for (int field = CodeOffset, i = 0; field < Fix0Barrier; field += 2, ++i) {
HeaderField offset_field = static_cast<HeaderField>(field);
HeaderField size_field = static_cast<HeaderField>(field + 1);
if (GetField(offset_field) + GetField(size_field) * ENTRY_SIZE[i] > file_end)
return error;
}
return RESULT_SUCCESS;
}
/**
* Verifies a string matching a predicted size (i.e. terminated by 0) if it is not empty
* @param address the virtual address of the string
* @param size the size of the string, including the terminating 0
* @returns ResultCode RESULT_SUCCESS if the size matches, otherwise error code.
*/
static ResultCode VerifyString(VAddr address, u32 size) {
if (size != 0) {
if (Memory::Read8(address + size - 1) != 0)
return CROFormatError(0x0B);
}
return RESULT_SUCCESS;
}
/**
* Rebases offsets in segment table according to module address.
* @param cro_size the size of the CRO file
* @param data_segment_address the buffer address for .data segment
* @param data_segment_size the buffer size for .data segment
* @param bss_segment_address the buffer address for .bss segment
* @param bss_segment_size the buffer size for .bss segment
* @returns ResultVal<u32> with the previous data segment offset before rebasing.
*/
ResultVal<u32> RebaseSegmentTable(u32 cro_size,
VAddr data_segment_address, u32 data_segment_size,
VAddr bss_segment_address, u32 bss_segment_size) {
u32 prev_data_segment = 0;
u32 segment_num = GetField(SegmentNum);
for (u32 i = 0; i < segment_num; ++i) {
SegmentEntry segment;
GetEntry(i, segment);
if (segment.type == SegmentType::Data) {
if (segment.size != 0) {
if (segment.size > data_segment_size)
return ERROR_BUFFER_TOO_SMALL;
prev_data_segment = segment.offset;
segment.offset = data_segment_address;
}
} else if (segment.type == SegmentType::BSS) {
if (segment.size != 0) {
if (segment.size > bss_segment_size)
return ERROR_BUFFER_TOO_SMALL;
segment.offset = bss_segment_address;
}
} else if (segment.offset != 0) {
segment.offset += module_address;
if (segment.offset > module_address + cro_size)
return CROFormatError(0x19);
}
SetEntry(i, segment);
}
return MakeResult<u32>(prev_data_segment);
}
/**
* Rebases offsets in exported named symbol table according to module address.
* @returns ResultCode RESULT_SUCCESS if all offsets are verified as valid, otherwise error code.
*/
ResultCode RebaseExportNamedSymbolTable() {
VAddr export_strings_offset = GetField(ExportStringsOffset);
VAddr export_strings_end = export_strings_offset + GetField(ExportStringsSize);
u32 export_named_symbol_num = GetField(ExportNamedSymbolNum);
for (u32 i = 0; i < export_named_symbol_num; ++i) {
ExportNamedSymbolEntry entry;
GetEntry(i, entry);
if (entry.name_offset != 0) {
entry.name_offset += module_address;
if (entry.name_offset < export_strings_offset
|| entry.name_offset >= export_strings_end) {
return CROFormatError(0x11);
}
}
SetEntry(i, entry);
}
return RESULT_SUCCESS;
}
/**
* Verifies indeces in export tree table.
* @returns ResultCode RESULT_SUCCESS if all indeces are verified as valid, otherwise error code.
*/
ResultCode VerifyExportTreeTable() const {
u32 tree_num = GetField(ExportTreeNum);
for (u32 i = 0; i < tree_num; ++i) {
ExportTreeEntry entry;
GetEntry(i, entry);
if (entry.left.next_index >= tree_num || entry.right.next_index >= tree_num) {
return CROFormatError(0x11);
}
}
return RESULT_SUCCESS;
}
/**
* Rebases offsets in exported module table according to module address.
* @returns ResultCode RESULT_SUCCESS if all offsets are verified as valid, otherwise error code.
*/
ResultCode RebaseImportModuleTable() {
VAddr import_strings_offset = GetField(ImportStringsOffset);
VAddr import_strings_end = import_strings_offset + GetField(ImportStringsSize);
VAddr import_indexed_symbol_table_offset = GetField(ImportIndexedSymbolTableOffset);
VAddr index_import_table_end = import_indexed_symbol_table_offset + GetField(ImportIndexedSymbolNum) * sizeof(ImportIndexedSymbolEntry);
VAddr import_anonymous_symbol_table_offset = GetField(ImportAnonymousSymbolTableOffset);
VAddr offset_import_table_end = import_anonymous_symbol_table_offset + GetField(ImportAnonymousSymbolNum) * sizeof(ImportAnonymousSymbolEntry);
u32 module_num = GetField(ImportModuleNum);
for (u32 i = 0; i < module_num; ++i) {
ImportModuleEntry entry;
GetEntry(i, entry);
if (entry.name_offset != 0) {
entry.name_offset += module_address;
if (entry.name_offset < import_strings_offset
|| entry.name_offset >= import_strings_end) {
return CROFormatError(0x18);
}
}
if (entry.import_indexed_symbol_table_offset != 0) {
entry.import_indexed_symbol_table_offset += module_address;
if (entry.import_indexed_symbol_table_offset < import_indexed_symbol_table_offset
|| entry.import_indexed_symbol_table_offset > index_import_table_end) {
return CROFormatError(0x18);
}
}
if (entry.import_anonymous_symbol_table_offset != 0) {
entry.import_anonymous_symbol_table_offset += module_address;
if (entry.import_anonymous_symbol_table_offset < import_anonymous_symbol_table_offset
|| entry.import_anonymous_symbol_table_offset > offset_import_table_end) {
return CROFormatError(0x18);
}
}
SetEntry(i, entry);
}
return RESULT_SUCCESS;
}
/**
* Rebases offsets in imported named symbol table according to module address.
* @returns ResultCode RESULT_SUCCESS if all offsets are verified as valid, otherwise error code.
*/
ResultCode RebaseImportNamedSymbolTable() {
VAddr import_strings_offset = GetField(ImportStringsOffset);
VAddr import_strings_end = import_strings_offset + GetField(ImportStringsSize);
VAddr external_patch_table_offset = GetField(ExternalPatchTableOffset);
VAddr external_patch_table_end = external_patch_table_offset + GetField(ExternalPatchNum) * sizeof(ExternalPatchEntry);
u32 num = GetField(ImportNamedSymbolNum);
for (u32 i = 0; i < num ; ++i) {
ImportNamedSymbolEntry entry;
GetEntry(i, entry);
if (entry.name_offset != 0) {
entry.name_offset += module_address;
if (entry.name_offset < import_strings_offset
|| entry.name_offset >= import_strings_end) {
return CROFormatError(0x1B);
}
}
if (entry.patch_batch_offset != 0) {
entry.patch_batch_offset += module_address;
if (entry.patch_batch_offset < external_patch_table_offset
|| entry.patch_batch_offset > external_patch_table_end) {
return CROFormatError(0x1B);
}
}
SetEntry(i, entry);
}
return RESULT_SUCCESS;
}
/**
* Rebases offsets in imported indexed symbol table according to module address.
* @returns ResultCode RESULT_SUCCESS if all offsets are verified as valid, otherwise error code.
*/
ResultCode RebaseImportIndexedSymbolTable() {
VAddr external_patch_table_offset = GetField(ExternalPatchTableOffset);
VAddr external_patch_table_end = external_patch_table_offset + GetField(ExternalPatchNum) * sizeof(ExternalPatchEntry);
u32 num = GetField(ImportIndexedSymbolNum);
for (u32 i = 0; i < num ; ++i) {
ImportIndexedSymbolEntry entry;
GetEntry(i, entry);
if (entry.patch_batch_offset != 0) {
entry.patch_batch_offset += module_address;
if (entry.patch_batch_offset < external_patch_table_offset
|| entry.patch_batch_offset > external_patch_table_end) {
return CROFormatError(0x14);
}
}
SetEntry(i, entry);
}
return RESULT_SUCCESS;
}
/**
* Rebases offsets in imported anonymous symbol table according to module address.
* @returns ResultCode RESULT_SUCCESS if all offsets are verified as valid, otherwise error code.
*/
ResultCode RebaseImportAnonymousSymbolTable() {
VAddr external_patch_table_offset = GetField(ExternalPatchTableOffset);
VAddr external_patch_table_end = external_patch_table_offset + GetField(ExternalPatchNum) * sizeof(ExternalPatchEntry);
u32 num = GetField(ImportAnonymousSymbolNum);
for (u32 i = 0; i < num ; ++i) {
ImportAnonymousSymbolEntry entry;
GetEntry(i, entry);
if (entry.patch_batch_offset != 0) {
entry.patch_batch_offset += module_address;
if (entry.patch_batch_offset < external_patch_table_offset
|| entry.patch_batch_offset > external_patch_table_end) {
return CROFormatError(0x17);
}
}
SetEntry(i, entry);
}
return RESULT_SUCCESS;
}
/**
* Gets the address of OnUnresolved function in this module.
* Used as the applied symbol for reset patch.
* @returns the virtual address of OnUnresolved. 0 if not provided.
*/
VAddr GetOnUnresolvedAddress() {
return SegmentTagToAddress(SegmentTag(GetField(OnUnresolvedSegmentTag)));
}
/**
* Resets all external patches to unresolved state.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ResetExternalPatches() {
u32 unresolved_symbol = GetOnUnresolvedAddress();
u32 external_patch_num = GetField(ExternalPatchNum);
ExternalPatchEntry patch;
// Verifies that the last patch is the end of a batch
GetEntry(external_patch_num - 1, patch);
if (!patch.is_batch_end) {
return CROFormatError(0x12);
}
bool batch_begin = true;
for (u32 i = 0; i < external_patch_num; ++i) {
GetEntry(i, patch);
VAddr patch_target = SegmentTagToAddress(patch.target_position);
if (patch_target == 0) {
return CROFormatError(0x12);
}
ResultCode result = ApplyPatch(patch_target, patch.type, patch.shift, unresolved_symbol, patch_target);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch %08X", result.raw);
return result;
}
if (batch_begin) {
// resets to unresolved state
patch.is_batch_resolved = 0;
SetEntry(i, patch);
}
// if current is an end, then the next is a beginning
batch_begin = patch.is_batch_end != 0;
}
return RESULT_SUCCESS;
}
/**
* Clears all external patches to zero.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ClearExternalPatches() {
u32 external_patch_num = GetField(ExternalPatchNum);
ExternalPatchEntry patch;
bool batch_begin = true;
for (u32 i = 0; i < external_patch_num; ++i) {
GetEntry(i, patch);
VAddr patch_target = SegmentTagToAddress(patch.target_position);
if (patch_target == 0) {
return CROFormatError(0x12);
}
ResultCode result = ClearPatch(patch_target, patch.type);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error clearing patch %08X", result.raw);
return result;
}
if (batch_begin) {
// resets to unresolved state
patch.is_batch_resolved = 0;
SetEntry(i, patch);
}
// if current is an end, then the next is a beginning
batch_begin = patch.is_batch_end != 0;
}
return RESULT_SUCCESS;
}
/**
* Applies all static anonymous symbol to the static module.
* @param crs_address the virtual address of the static module
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ApplyStaticAnonymousSymbolToCRS(VAddr crs_address) {
VAddr static_patch_table_offset = GetField(StaticPatchTableOffset);
VAddr static_patch_table_end = static_patch_table_offset + GetField(StaticPatchNum) * sizeof(StaticPatchEntry);
CROHelper crs(crs_address);
u32 offset_export_num = GetField(StaticAnonymousSymbolNum);
LOG_INFO(Service_LDR, "CRO \"%s\" exports %d static anonymous symbols", ModuleName().data(), offset_export_num);
for (u32 i = 0; i < offset_export_num; ++i) {
StaticAnonymousSymbolEntry entry;
GetEntry(i, entry);
u32 batch_address = entry.patch_batch_offset + module_address;
if (batch_address < static_patch_table_offset
|| batch_address > static_patch_table_end) {
return CROFormatError(0x16);
}
u32 symbol_address = SegmentTagToAddress(entry.symbol_position);
LOG_TRACE(Service_LDR, "CRO \"%s\" exports 0x%08X to the static module", ModuleName().data(), symbol_address);
ResultCode result = crs.ApplyPatchBatch(batch_address, symbol_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
}
return RESULT_SUCCESS;
}
/**
* Applies all internal patches to the module itself.
* @param old_data_segment_address the virtual address of data segment in CRO buffer
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ApplyInternalPatches(u32 old_data_segment_address) {
u32 segment_num = GetField(SegmentNum);
u32 internal_patch_num = GetField(InternalPatchNum);
for (u32 i = 0; i < internal_patch_num; ++i) {
InternalPatchEntry patch;
GetEntry(i, patch);
VAddr target_addressB = SegmentTagToAddress(patch.target_position);
if (target_addressB == 0) {
return CROFormatError(0x15);
}
VAddr target_address;
SegmentEntry target_segment;
GetEntry(patch.target_position.segment_index, target_segment);
if (target_segment.type == SegmentType::Data) {
// If the patch is to the .data segment, we need to patch it in the old buffer
target_address = old_data_segment_address + patch.target_position.offset_into_segment;
} else {
target_address = target_addressB;
}
if (patch.symbol_segment >= segment_num) {
return CROFormatError(0x15);
}
SegmentEntry symbol_segment;
GetEntry(patch.symbol_segment, symbol_segment);
LOG_TRACE(Service_LDR, "Internally patches 0x%08X with 0x%08X", target_address, symbol_segment.offset);
ResultCode result = ApplyPatch(target_address, patch.type, patch.shift, symbol_segment.offset, target_addressB);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch %08X", result.raw);
return result;
}
}
return RESULT_SUCCESS;
}
/**
* Clears all internal patches to zero.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ClearInternalPatches() {
u32 internal_patch_num = GetField(InternalPatchNum);
for (u32 i = 0; i < internal_patch_num; ++i) {
InternalPatchEntry patch;
GetEntry(i, patch);
VAddr target_address = SegmentTagToAddress(patch.target_position);
if (target_address == 0) {
return CROFormatError(0x15);
}
ResultCode result = ClearPatch(target_address, patch.type);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error clearing patch %08X", result.raw);
return result;
}
}
return RESULT_SUCCESS;
}
/// Unrebases offsets in imported anonymous symbol table
void UnrebaseImportAnonymousSymbolTable() {
u32 num = GetField(ImportAnonymousSymbolNum);
for (u32 i = 0; i < num; ++i) {
ImportAnonymousSymbolEntry entry;
GetEntry(i, entry);
if (entry.patch_batch_offset != 0) {
entry.patch_batch_offset -= module_address;
}
SetEntry(i, entry);
}
}
/// Unrebases offsets in imported indexed symbol table
void UnrebaseImportIndexedSymbolTable() {
u32 num = GetField(ImportIndexedSymbolNum);
for (u32 i = 0; i < num; ++i) {
ImportIndexedSymbolEntry entry;
GetEntry(i, entry);
if (entry.patch_batch_offset != 0) {
entry.patch_batch_offset -= module_address;
}
SetEntry(i, entry);
}
}
/// Unrebases offsets in imported named symbol table
void UnrebaseImportNamedSymbolTable() {
u32 num = GetField(ImportNamedSymbolNum);
for (u32 i = 0; i < num; ++i) {
ImportNamedSymbolEntry entry;
GetEntry(i, entry);
if (entry.name_offset != 0) {
entry.name_offset -= module_address;
}
if (entry.patch_batch_offset) {
entry.patch_batch_offset -= module_address;
}
SetEntry(i, entry);
}
}
/// Unrebases offsets in imported module table
void UnrebaseImportModuleTable() {
u32 module_num = GetField(ImportModuleNum);
for (u32 i = 0; i < module_num; ++i) {
ImportModuleEntry entry;
GetEntry(i, entry);
if (entry.name_offset != 0) {
entry.name_offset -= module_address;
}
if (entry.import_indexed_symbol_table_offset) {
entry.import_indexed_symbol_table_offset -= module_address;
}
if (entry.import_anonymous_symbol_table_offset) {
entry.import_anonymous_symbol_table_offset -= module_address;
}
SetEntry(i, entry);
}
}
/// Unrebases offsets in exported named symbol table
void UnrebaseExportNamedSymbolTable() {
u32 export_named_symbol_num = GetField(ExportNamedSymbolNum);
for (u32 i = 0; i < export_named_symbol_num; ++i) {
ExportNamedSymbolEntry entry;
GetEntry(i, entry);
if (entry.name_offset != 0) {
entry.name_offset -= module_address;
}
SetEntry(i, entry);
}
}
/// Unrebases offsets in segment table
void UnrebaseSegmentTable() {
u32 segment_num = GetField(SegmentNum);
for (u32 i = 0; i < segment_num; ++i) {
SegmentEntry segment;
GetEntry(i, segment);
if (segment.type == SegmentType::BSS) {
segment.offset = 0;
} else if (segment.offset != 0) {
segment.offset -= module_address;
}
SetEntry(i, segment);
}
}
/// Unrebases offsets in module header
void UnrebaseHeader() {
u32 offset = GetField(NameOffset);
if (offset != 0)
SetField(NameOffset, offset - module_address);
for (int field = CodeOffset; field < Fix0Barrier; field += 2) {
HeaderField header_field = static_cast<HeaderField>(field);
offset = GetField(header_field);
if (offset != 0)
SetField(header_field, offset - module_address);
}
}
/**
* Looks up all imported named symbols of this module in all registered auto-link modules, and resolves them if found.
* @param crs_address the virtual address of the static module
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ApplyImportNamedSymbol(VAddr crs_address) {
u32 import_strings_size = GetField(ImportStringsSize);
u32 symbol_import_num = GetField(ImportNamedSymbolNum);
for (u32 i = 0; i < symbol_import_num; ++i) {
ImportNamedSymbolEntry entry;
GetEntry(i, entry);
VAddr patch_addr = entry.patch_batch_offset;
ExternalPatchEntry patch_entry;
Memory::ReadBlock(patch_addr, &patch_entry, sizeof(ExternalPatchEntry));
if (!patch_entry.is_batch_resolved) {
ResultCode result = ForEachAutoLinkCRO(crs_address, [&](CROHelper source) -> ResultVal<bool> {
std::string symbol_name = Memory::ReadCString(entry.name_offset, import_strings_size);
u32 symbol_address = source.FindExportNamedSymbol(symbol_name);
if (symbol_address != 0) {
LOG_TRACE(Service_LDR, "CRO \"%s\" imports \"%s\" from \"%s\"",
ModuleName().data(), symbol_name.data(), source.ModuleName().data());
ResultCode result = ApplyPatchBatch(patch_addr, symbol_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
return MakeResult<bool>(false);
}
return MakeResult<bool>(true);
});
if (result.IsError()) {
return result;
}
}
}
return RESULT_SUCCESS;
}
/**
* Resets all imported named symbols of this module to unresolved state.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ResetImportNamedSymbol() {
u32 unresolved_symbol = GetOnUnresolvedAddress();
u32 symbol_import_num = GetField(ImportNamedSymbolNum);
for (u32 i = 0; i < symbol_import_num; ++i) {
ImportNamedSymbolEntry entry;
GetEntry(i, entry);
VAddr patch_addr = entry.patch_batch_offset;
ExternalPatchEntry patch_entry;
Memory::ReadBlock(patch_addr, &patch_entry, sizeof(ExternalPatchEntry));
ResultCode result = ApplyPatchBatch(patch_addr, unresolved_symbol, true);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error reseting patch batch %08X", result.raw);
return result;
}
}
return RESULT_SUCCESS;
}
/**
* Resets all imported indexed symbols of this module to unresolved state.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ResetImportIndexedSymbol() {
u32 unresolved_symbol = GetOnUnresolvedAddress();
u32 import_num = GetField(ImportIndexedSymbolNum);
for (u32 i = 0; i < import_num; ++i) {
ImportIndexedSymbolEntry entry;
GetEntry(i, entry);
VAddr patch_addr = entry.patch_batch_offset;
ExternalPatchEntry patch_entry;
Memory::ReadBlock(patch_addr, &patch_entry, sizeof(ExternalPatchEntry));
ResultCode result = ApplyPatchBatch(patch_addr, unresolved_symbol, true);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error reseting patch batch %08X", result.raw);
return result;
}
}
return RESULT_SUCCESS;
}
/**
* Resets all imported anonymous symbols of this module to unresolved state.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ResetImportAnonymousSymbol() {
u32 unresolved_symbol = GetOnUnresolvedAddress();
u32 import_num = GetField(ImportAnonymousSymbolNum);
for (u32 i = 0; i < import_num; ++i) {
ImportAnonymousSymbolEntry entry;
GetEntry(i, entry);
VAddr patch_addr = entry.patch_batch_offset;
ExternalPatchEntry patch_entry;
Memory::ReadBlock(patch_addr, &patch_entry, sizeof(ExternalPatchEntry));
ResultCode result = ApplyPatchBatch(patch_addr, unresolved_symbol, true);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error reseting patch batch %08X", result.raw);
return result;
}
}
return RESULT_SUCCESS;
}
/**
* Finds registered auto-link modules that this module imports, and resolves indexed and anonymous symbols exported by them.
* @param crs_address the virtual address of the static module
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ApplyModuleImport(VAddr crs_address) {
u32 import_strings_size = GetField(ImportStringsSize);
u32 import_module_num = GetField(ImportModuleNum);
for (u32 i = 0; i < import_module_num; ++i) {
ImportModuleEntry entry;
GetEntry(i, entry);
std::string want_cro_name = Memory::ReadCString(entry.name_offset, import_strings_size);
ResultCode result = ForEachAutoLinkCRO(crs_address, [&](CROHelper source) -> ResultVal<bool> {
if (want_cro_name == source.ModuleName()) {
LOG_INFO(Service_LDR, "CRO \"%s\" imports %d indexed symbols from \"%s\"",
ModuleName().data(), entry.import_indexed_symbol_num, source.ModuleName().data());
for (u32 j = 0; j < entry.import_indexed_symbol_num; ++j) {
ImportIndexedSymbolEntry im;
entry.GetImportIndexedSymbolEntry(j, im);
ExportIndexedSymbolEntry ex;
source.GetEntry(im.index, ex);
u32 symbol_address = source.SegmentTagToAddress(ex.symbol_position);
LOG_TRACE(Service_LDR, " Imports 0x%08X", symbol_address);
ResultCode result = ApplyPatchBatch(im.patch_batch_offset, symbol_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
}
LOG_INFO(Service_LDR, "CRO \"%s\" imports %d anonymous symbols from \"%s\"",
ModuleName().data(), entry.import_anonymous_symbol_num, source.ModuleName().data());
for (u32 j = 0; j < entry.import_anonymous_symbol_num; ++j) {
ImportAnonymousSymbolEntry im;
entry.GetImportAnonymousSymbolEntry(j, im);
u32 symbol_address = source.SegmentTagToAddress(im.symbol_position);
LOG_TRACE(Service_LDR, " Imports 0x%08X", symbol_address);
ResultCode result = ApplyPatchBatch(im.patch_batch_offset, symbol_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
}
return MakeResult<bool>(false);
}
return MakeResult<bool>(true);
});
if (result.IsError()) {
return result;
}
}
return RESULT_SUCCESS;
}
/**
* Resolves target module's imported named symbols that exported by this module.
* @param target the module to resolve.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ApplyExportNamedSymbol(CROHelper target) {
LOG_DEBUG(Service_LDR, "CRO \"%s\" exports named symbols to \"%s\"",
ModuleName().data(), target.ModuleName().data());
u32 target_import_strings_size = target.GetField(ImportStringsSize);
u32 target_symbol_import_num = target.GetField(ImportNamedSymbolNum);
for (u32 i = 0; i < target_symbol_import_num; ++i) {
ImportNamedSymbolEntry entry;
target.GetEntry(i, entry);
VAddr patch_addr = entry.patch_batch_offset;
ExternalPatchEntry patch_entry;
Memory::ReadBlock(patch_addr, &patch_entry, sizeof(ExternalPatchEntry));
if (!patch_entry.is_batch_resolved) {
std::string symbol_name = Memory::ReadCString(entry.name_offset, target_import_strings_size);
u32 symbol_address = FindExportNamedSymbol(symbol_name);
if (symbol_address != 0) {
LOG_TRACE(Service_LDR, " exports symbol \"%s\"", symbol_name.data());
ResultCode result = target.ApplyPatchBatch(patch_addr, symbol_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
}
}
}
return RESULT_SUCCESS;
}
/**
* Resets target's named symbols imported from this module to unresolved state.
* @param target the module to reset.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ResetExportNamedSymbol(CROHelper target) {
LOG_DEBUG(Service_LDR, "CRO \"%s\" unexports named symbols to \"%s\"",
ModuleName().data(), target.ModuleName().data());
u32 unresolved_symbol = target.GetOnUnresolvedAddress();
u32 target_import_strings_size = target.GetField(ImportStringsSize);
u32 target_symbol_import_num = target.GetField(ImportNamedSymbolNum);
for (u32 i = 0; i < target_symbol_import_num; ++i) {
ImportNamedSymbolEntry entry;
target.GetEntry(i, entry);
VAddr patch_addr = entry.patch_batch_offset;
ExternalPatchEntry patch_entry;
Memory::ReadBlock(patch_addr, &patch_entry, sizeof(ExternalPatchEntry));
if (patch_entry.is_batch_resolved) {
std::string symbol_name = Memory::ReadCString(entry.name_offset, target_import_strings_size);
u32 symbol_address = FindExportNamedSymbol(symbol_name);
if (symbol_address != 0) {
LOG_TRACE(Service_LDR, " unexports symbol \"%s\"", symbol_name.data());
ResultCode result = target.ApplyPatchBatch(patch_addr, unresolved_symbol, true);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
}
}
}
return RESULT_SUCCESS;
}
/**
* Resolves imported indexed and anonymous symbols in the target module which imports this module.
* @param target the module to resolve.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ApplyModuleExport(CROHelper target) {
std::string module_name = ModuleName();
u32 target_import_string_size = target.GetField(ImportStringsSize);
u32 target_import_module_num = target.GetField(ImportModuleNum);
for (u32 i = 0; i < target_import_module_num; ++i) {
ImportModuleEntry entry;
target.GetEntry(i, entry);
if (Memory::ReadCString(entry.name_offset, target_import_string_size) != module_name)
continue;
LOG_INFO(Service_LDR, "CRO \"%s\" exports %d indexed symbols to \"%s\"",
module_name.data(), entry.import_indexed_symbol_num, target.ModuleName().data());
for (u32 j = 0; j < entry.import_indexed_symbol_num; ++j) {
ImportIndexedSymbolEntry im;
entry.GetImportIndexedSymbolEntry(j, im);
ExportIndexedSymbolEntry ex;
GetEntry(im.index, ex);
u32 symbol_address = SegmentTagToAddress(ex.symbol_position);
LOG_TRACE(Service_LDR, " exports symbol 0x%08X", symbol_address);
ResultCode result = target.ApplyPatchBatch(im.patch_batch_offset, symbol_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
}
LOG_INFO(Service_LDR, "CRO \"%s\" exports %d anonymous symbols to \"%s\"",
module_name.data(), entry.import_anonymous_symbol_num, target.ModuleName().data());
for (u32 j = 0; j < entry.import_anonymous_symbol_num; ++j) {
ImportAnonymousSymbolEntry im;
entry.GetImportAnonymousSymbolEntry(j, im);
u32 symbol_address = SegmentTagToAddress(im.symbol_position);
LOG_TRACE(Service_LDR, " exports symbol 0x%08X", symbol_address);
ResultCode result = target.ApplyPatchBatch(im.patch_batch_offset, symbol_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
}
}
return RESULT_SUCCESS;
}
/**
* Resets target's indexed and anonymous symbol imported from this module to unresolved state.
* @param target the module to reset.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ResetModuleExport(CROHelper target) {
u32 unresolved_symbol = target.GetOnUnresolvedAddress();
std::string module_name = ModuleName();
u32 target_import_string_size = target.GetField(ImportStringsSize);
u32 target_import_module_num = target.GetField(ImportModuleNum);
for (u32 i = 0; i < target_import_module_num; ++i) {
ImportModuleEntry entry;
target.GetEntry(i, entry);
if (Memory::ReadCString(entry.name_offset, target_import_string_size) != module_name)
continue;
LOG_DEBUG(Service_LDR, "CRO \"%s\" unexports indexed symbols to \"%s\"",
module_name.data(), target.ModuleName().data());
for (u32 j = 0; j < entry.import_indexed_symbol_num; ++j) {
ImportIndexedSymbolEntry im;
entry.GetImportIndexedSymbolEntry(j, im);
ResultCode result = target.ApplyPatchBatch(im.patch_batch_offset, unresolved_symbol, true);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
}
LOG_DEBUG(Service_LDR, "CRO \"%s\" unexports anonymous symbols to \"%s\"",
module_name.data(), target.ModuleName().data());
for (u32 j = 0; j < entry.import_anonymous_symbol_num; ++j) {
ImportAnonymousSymbolEntry im;
entry.GetImportAnonymousSymbolEntry(j, im);
ResultCode result = target.ApplyPatchBatch(im.patch_batch_offset, unresolved_symbol, true);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
}
}
return RESULT_SUCCESS;
}
/**
* Resolves the exit function in this module
* @param crs_address the virtual address of the static module.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ApplyExitPatches(VAddr crs_address) {
u32 import_strings_size = GetField(ImportStringsSize);
u32 symbol_import_num = GetField(ImportNamedSymbolNum);
for (u32 i = 0; i < symbol_import_num; ++i) {
ImportNamedSymbolEntry entry;
GetEntry(i, entry);
VAddr patch_addr = entry.patch_batch_offset;
ExternalPatchEntry patch_entry;
Memory::ReadBlock(patch_addr, &patch_entry, sizeof(ExternalPatchEntry));
if (Memory::ReadCString(entry.name_offset, import_strings_size) == "__aeabi_atexit"){
ResultCode result = ForEachAutoLinkCRO(crs_address, [&](CROHelper source) -> ResultVal<bool> {
u32 symbol_address = source.FindExportNamedSymbol("nnroAeabiAtexit_");
if (symbol_address != 0) {
LOG_DEBUG(Service_LDR, "CRO \"%s\" import exit function from \"%s\"",
ModuleName().data(), source.ModuleName().data());
ResultCode result = ApplyPatchBatch(patch_addr, symbol_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying patch batch %08X", result.raw);
return result;
}
return MakeResult<bool>(false);
}
return MakeResult<bool>(true);
});
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying exit patch %08X", result.raw);
return result;
}
}
}
return RESULT_SUCCESS;
}
public:
explicit CROHelper(VAddr cro_address) : module_address(cro_address) {
}
std::string ModuleName() const {
return Memory::ReadCString(GetField(ModuleNameOffset), GetField(ModuleNameSize));
}
u32 GetFileSize() const {
return GetField(FileSize);
}
/**
* Rebases the module according to its address.
* @param crs_address the virtual address of the static module
* @param cro_size the size of the CRO file
* @param data_segment_address buffer address for .data segment
* @param data_segment_size the buffer size for .data segment
* @param bss_segment_address the buffer address for .bss segment
* @param bss_segment_size the buffer size for .bss segment
* @param is_crs true if the module itself is the static module
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode Rebase(VAddr crs_address, u32 cro_size,
VAddr data_segment_addresss, u32 data_segment_size,
VAddr bss_segment_address, u32 bss_segment_size, bool is_crs) {
ResultCode result = RebaseHeader(cro_size);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error rebasing header %08X", result.raw);
return result;
}
result = VerifyString(GetField(ModuleNameOffset), GetField(ModuleNameSize));
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error verifying module name %08X", result.raw);
return result;
}
u32 prev_data_segment_address = 0;
if (!is_crs) {
auto result_val = RebaseSegmentTable(cro_size,
data_segment_addresss, data_segment_size,
bss_segment_address, bss_segment_size);
if (result_val.Failed()) {
LOG_ERROR(Service_LDR, "Error rebasing segment table %08X", result_val.Code().raw);
return result_val.Code();
}
prev_data_segment_address = *result_val;
}
prev_data_segment_address += module_address;
result = RebaseExportNamedSymbolTable();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error rebasing symbol export table %08X", result.raw);
return result;
}
result = VerifyExportTreeTable();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error verifying export tree %08X", result.raw);
return result;
}
result = VerifyString(GetField(ExportStringsOffset), GetField(ExportStringsSize));
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error verifying export strings %08X", result.raw);
return result;
}
result = RebaseImportModuleTable();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error rebasing object table %08X", result.raw);
return result;
}
result = ResetExternalPatches();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error resetting all external patches %08X", result.raw);
return result;
}
result = RebaseImportNamedSymbolTable();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error rebasing symbol import table %08X", result.raw);
return result;
}
result = RebaseImportIndexedSymbolTable();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error rebasing index import table %08X", result.raw);
return result;
}
result = RebaseImportAnonymousSymbolTable();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error rebasing offset import table %08X", result.raw);
return result;
}
result = VerifyString(GetField(ImportStringsOffset), GetField(ImportStringsSize));
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error verifying import strings %08X", result.raw);
return result;
}
if (!is_crs) {
result = ApplyStaticAnonymousSymbolToCRS(crs_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying offset export to CRS %08X", result.raw);
return result;
}
}
result = ApplyInternalPatches(prev_data_segment_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying internal patches %08X", result.raw);
return result;
}
if (!is_crs) {
result = ApplyExitPatches(crs_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying exit patches %08X", result.raw);
return result;
}
}
return RESULT_SUCCESS;
}
/**
* Unrebases the module.
* @param is_crs true if the module itself is the static module
*/
void Unrebase(bool is_crs) {
UnrebaseImportAnonymousSymbolTable();
UnrebaseImportIndexedSymbolTable();
UnrebaseImportNamedSymbolTable();
UnrebaseImportModuleTable();
UnrebaseExportNamedSymbolTable();
if (!is_crs)
UnrebaseSegmentTable();
SetNextModule(0);
SetPreviousModule(0);
SetField(FixedSize, 0);
UnrebaseHeader();
}
/**
* Verifies module hash by CRR.
* @param cro_size the size of the CRO
* @param crr the virtual address of the CRR
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode VerifyHash(u32 cro_size, VAddr crr) const {
// TODO(wwylele): actually verify the hash
return RESULT_SUCCESS;
}
/**
* Links this module with all registered auto-link module.
* @param crs_address the virtual address of the static module
* @param link_on_load_bug_fix true if links when loading and fixes the bug
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode Link(VAddr crs_address, bool link_on_load_bug_fix) {
ResultCode result = RESULT_SUCCESS;
{
VAddr data_segment_address;
if (link_on_load_bug_fix) {
// this is a bug fix introduced by 7.2.0-17's LoadCRO_New
// The bug itself is:
// If a patch target is in .data segment, it will patch to the
// user-specified buffer. But if this is linking during loading,
// the .data segment hasn't been tranfer from CRO to the buffer,
// thus the patch will be overwritten by data transfer.
// To fix this bug, we need temporarily restore the old .data segment
// offset and apply imported symbols.
// RO service seems assuming segment_index == segment_type,
// so we do the same
if (GetField(SegmentNum) >= 2) { // means we have .data segment
SegmentEntry entry;
GetEntry(2, entry);
ASSERT(entry.type == SegmentType::Data);
data_segment_address = entry.offset;
entry.offset = GetField(DataOffset);
SetEntry(2, entry);
}
}
SCOPE_EXIT({
// Restore the new .data segment address after importing
if (link_on_load_bug_fix) {
if (GetField(SegmentNum) >= 2) {
SegmentEntry entry;
GetEntry(2, entry);
entry.offset = data_segment_address;
SetEntry(2, entry);
}
}
});
// Imports named symbols from other modules
result = ApplyImportNamedSymbol(crs_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying symbol import %08X", result.raw);
return result;
}
// Imports indexed and anonymous symbols from other modules
result = ApplyModuleImport(crs_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying module import %08X", result.raw);
return result;
}
}
// Exports symbols to other modules
result = ForEachAutoLinkCRO(crs_address, [this](CROHelper target) -> ResultVal<bool> {
ResultCode result = ApplyExportNamedSymbol(target);
if (result.IsError())
return result;
result = ApplyModuleExport(target);
if (result.IsError())
return result;
return MakeResult<bool>(true);
});
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error applying export %08X", result.raw);
return result;
}
return RESULT_SUCCESS;
}
/**
* Unlinks this module with other modules.
* @param crs_address the virtual address of the static module
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode Unlink(VAddr crs_address) {
// Resets all imported named symbols
ResultCode result = ResetImportNamedSymbol();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error resetting symbol import %08X", result.raw);
return result;
}
// Resets all imported indexed symbols
result = ResetImportIndexedSymbol();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error resetting indexed import %08X", result.raw);
return result;
}
// Resets all imported anonymous symbols
result = ResetImportAnonymousSymbol();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error resetting anonymous import %08X", result.raw);
return result;
}
// Resets all symbols in other modules imported from this module
// Note: the RO service seems only searching in auto-link modules
result = ForEachAutoLinkCRO(crs_address, [this](CROHelper target) -> ResultVal<bool> {
ResultCode result = ResetExportNamedSymbol(target);
if (result.IsError())
return result;
result = ResetModuleExport(target);
if (result.IsError())
return result;
return MakeResult<bool>(true);
});
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error resetting export %08X", result.raw);
return result;
}
return RESULT_SUCCESS;
}
/**
* Clears all patches to zero.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ClearPatches() {
ResultCode result = ClearExternalPatches();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error clearing external patches %08X", result.raw);
return result;
}
result = ClearInternalPatches();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error clearing internal patches %08X", result.raw);
return result;
}
return RESULT_SUCCESS;
}
void InitCRS() {
SetNextModule(0);
SetPreviousModule(0);
}
/**
* Registers this module and adds it to the module list.
* @param crs_address the virtual address of the static module
* @auto_link whether to register as an auto link module
*/
void Register(VAddr crs_address, bool auto_link) {
CROHelper crs(crs_address);
CROHelper head(auto_link ? crs.NextModule() : crs.PreviousModule());
if (head.module_address) {
// there are already CROs registered
// register as the new tail
CROHelper tail(head.PreviousModule());
// link with the old tail
ASSERT(tail.NextModule() == 0);
SetPreviousModule(tail.module_address);
tail.SetNextModule(module_address);
// set previous of the head pointing to the new tail
head.SetPreviousModule(module_address);
} else {
// register as the first CRO
// set previous to self as tail
SetPreviousModule(module_address);
// set self as head
if (auto_link)
crs.SetNextModule(module_address);
else
crs.SetPreviousModule(module_address);
}
// the new one is the tail
SetNextModule(0);
}
/**
* Unregisters this module and removes from the module list.
* @param crs_address the virtual address of the static module
*/
void Unregister(VAddr crs_address) {
CROHelper crs(crs_address);
CROHelper next_head(crs.NextModule()), previous_head(crs.PreviousModule());
CROHelper next(NextModule()), previous(PreviousModule());
if (module_address == next_head.module_address || module_address == previous_head.module_address) {
// removing head
if (next.module_address) {
// the next is new head
// let its previous point to the tail
next.SetPreviousModule(previous.module_address);
}
// set new head
if (module_address == previous_head.module_address) {
crs.SetPreviousModule(next.module_address);
} else {
crs.SetNextModule(next.module_address);
}
} else if (next.module_address) {
// link previous and next
previous.SetNextModule(next.module_address);
next.SetPreviousModule(previous.module_address);
} else {
// removing tail
// set previous as new tail
previous.SetNextModule(0);
// let head's previous point to the new tail
if (next_head.module_address && next_head.PreviousModule() == module_address) {
next_head.SetPreviousModule(previous.module_address);
} else if (previous_head.module_address && previous_head.PreviousModule() == module_address) {
previous_head.SetPreviousModule(previous.module_address);
} else {
UNREACHABLE();
}
}
// unlink self
SetNextModule(0);
SetPreviousModule(0);
}
/**
* Gets the end of reserved data according to the fix level.
* @param fix_level fix level from 0 to 3
* @returns the end of reserved data.
*/
u32 GetFixEnd(u32 fix_level) const {
u32 end = CRO_HEADER_SIZE;
end = std::max<u32>(end, GetField(CodeOffset) + GetField(CodeSize));
u32 entry_size_i = 2;
int field = ModuleNameOffset;
while (true) {
end = std::max<u32>(end,
GetField(static_cast<HeaderField>(field)) +
GetField(static_cast<HeaderField>(field + 1)) * ENTRY_SIZE[entry_size_i]);
++entry_size_i;
field += 2;
if (field == FIX_BARRIERS[fix_level])
return end;
}
}
/**
* Zeros offsets to cropped data according to the fix level and marks as fixed.
* @param fix_level fix level from 0 to 3
* @returns page-aligned size of the module after fixing.
*/
u32 Fix(u32 fix_level) {
u32 fix_end = GetFixEnd(fix_level);
if (fix_level != 0) {
SetField(Magic, MAGIC_FIXD);
for (int field = FIX_BARRIERS[fix_level]; field < Fix0Barrier; field += 2) {
SetField(static_cast<HeaderField>(field), fix_end);
SetField(static_cast<HeaderField>(field + 1), 0);
}
}
fix_end = Common::AlignUp(fix_end, Memory::PAGE_SIZE);
u32 fixed_size = fix_end - module_address;
SetField(FixedSize, fixed_size);
return fixed_size;
}
bool IsFixed() const {
return GetField(Magic) == MAGIC_FIXD;
}
u32 GetFixedSize() const {
return GetField(FixedSize);
}
bool IsLoaded() const {
u32 magic = GetField(Magic);
if (magic != MAGIC_CRO0 && magic != MAGIC_FIXD)
return false;
// TODO(wwylele): verify memory state here after memory aliasing is implemented
return true;
}
/**
* Gets the page address and size of the code segment.
* @returns a tuple of (address, size); (0, 0) if the code segment doesn't exist.
*/
std::tuple<VAddr, u32> GetExecutablePages() const {
u32 segment_num = GetField(SegmentNum);
for (u32 i = 0; i < segment_num; ++i) {
SegmentEntry entry;
GetEntry(i, entry);
if (entry.type == SegmentType::Code && entry.size != 0) {
VAddr begin = Common::AlignDown(entry.offset, Memory::PAGE_SIZE);
VAddr end = Common::AlignUp(entry.offset + entry.size, Memory::PAGE_SIZE);
return std::make_tuple(begin, end - begin);
}
}
return std::make_tuple(0, 0);
}
};
const std::array<int, 17> CROHelper::ENTRY_SIZE {{
1, // code
1, // data
1, // module name
sizeof(SegmentEntry),
sizeof(ExportNamedSymbolEntry),
sizeof(ExportIndexedSymbolEntry),
1, // export strings
sizeof(ExportTreeEntry),
sizeof(ImportModuleEntry),
sizeof(ExternalPatchEntry),
sizeof(ImportNamedSymbolEntry),
sizeof(ImportIndexedSymbolEntry),
sizeof(ImportAnonymousSymbolEntry),
1, // import strings
sizeof(StaticAnonymousSymbolEntry),
sizeof(InternalPatchEntry),
sizeof(StaticPatchEntry)
}};
const std::array<CROHelper::HeaderField, 4> CROHelper::FIX_BARRIERS {{
Fix0Barrier,
Fix1Barrier,
Fix2Barrier,
Fix3Barrier
}};
// This is a work-around before we implement memory aliasing.
// CRS and CRO are mapped (aliased) to another memory when loading.
// Games can read from both the original buffer or the mapped memory,
// and even write to the original buffer after CRO loading.
// So we use this to synchronize all original buffer with mapped memory
// after modifiying the content (rebasing, linking, etc.).
class MemorySynchronizer {
std::map<VAddr, std::tuple<VAddr, u32>> memory_blocks;
public:
void Clear() {
memory_blocks.clear();
}
void AddMemoryBlock(VAddr mapping, VAddr original, u32 size) {
memory_blocks[mapping] = std::make_tuple(original, size);
}
void RemoveMemoryBlock(VAddr source) {
memory_blocks.erase(source);
}
void SynchronizeOriginalMemory() {
for (auto block : memory_blocks) {
VAddr mapping = block.first;
VAddr original;
u32 size;
std::tie(original, size) = block.second;
Memory::CopyBlock(original, mapping, size);
}
}
void SynchronizeMappingMemory() {
for (auto block : memory_blocks) {
VAddr mapping = block.first;
VAddr original;
u32 size;
std::tie(original, size) = block.second;
Memory::CopyBlock(mapping, original, size);
}
}
};
static MemorySynchronizer memory_synchronizer;
// TODO(wwylele): this should be in the per-client storage when we implement multi-process
static VAddr loaded_crs; ///< the virtual address of the static module
static bool VerifyBufferState(VAddr buffer_ptr, u32 size) {
auto vma = Kernel::g_current_process->vm_manager.FindVMA(buffer_ptr);
return vma != Kernel::g_current_process->vm_manager.vma_map.end()
&& vma->second.base + vma->second.size >= buffer_ptr + size
&& vma->second.permissions == Kernel::VMAPermission::ReadWrite
&& vma->second.meminfo_state == Kernel::MemoryState::Private;
}
/**
* LDR_RO::Initialize service function
* Inputs:
* 1 : CRS buffer pointer
* 2 : CRS Size
* 3 : Process memory address where the CRS will be mapped
* 4 : handle translation descriptor (zero)
* 5 : KProcess handle
* Outputs:
* 0 : Return header
* 1 : Result of function, 0 on success, otherwise error code
*/
static void Initialize(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
VAddr crs_buffer_ptr = cmd_buff[1];
u32 crs_size = cmd_buff[2];
VAddr crs_address = cmd_buff[3];
u32 descriptor = cmd_buff[4];
u32 process = cmd_buff[5];
LOG_DEBUG(Service_LDR, "called, crs_buffer_ptr=0x%08X, crs_address=0x%08X, crs_size=0x%X, descriptor=0x%08X, process=0x%08X",
crs_buffer_ptr, crs_address, crs_size, descriptor, process);
if (descriptor != 0) {
LOG_ERROR(Service_LDR, "IPC handle descriptor failed validation (0x%X)", descriptor);
cmd_buff[0] = IPC::MakeHeader(0, 1, 0);
cmd_buff[1] = ERROR_INVALID_DESCRIPTOR.raw;
return;
}
cmd_buff[0] = IPC::MakeHeader(1, 1, 0);
if (loaded_crs != 0) {
LOG_ERROR(Service_LDR, "Already initialized");
cmd_buff[1] = ERROR_ALREADY_INITIALIZED.raw;
return;
}
if (crs_size < CRO_HEADER_SIZE) {
LOG_ERROR(Service_LDR, "CRS is too small");
cmd_buff[1] = ERROR_BUFFER_TOO_SMALL.raw;
return;
}
if (crs_buffer_ptr & Memory::PAGE_MASK) {
LOG_ERROR(Service_LDR, "CRS original address is not aligned");
cmd_buff[1] = ERROR_MISALIGNED_ADDRESS.raw;
return;
}
if (crs_address & Memory::PAGE_MASK) {
LOG_ERROR(Service_LDR, "CRS mapping address is not aligned");
cmd_buff[1] = ERROR_MISALIGNED_ADDRESS.raw;
return;
}
if (crs_size & Memory::PAGE_MASK) {
LOG_ERROR(Service_LDR, "CRS size is not aligned");
cmd_buff[1] = ERROR_MISALIGNED_SIZE.raw;
return;
}
if (!VerifyBufferState(crs_buffer_ptr, crs_size)) {
LOG_ERROR(Service_LDR, "CRS original buffer is in invalid state");
cmd_buff[1] = ERROR_INVALID_MEMORY_STATE.raw;
return;
}
if (crs_address < Memory::PROCESS_IMAGE_VADDR || crs_address + crs_size > Memory::PROCESS_IMAGE_VADDR_END) {
LOG_ERROR(Service_LDR, "CRS mapping address is not in the process image region");
cmd_buff[1] = ERROR_ILLEGAL_ADDRESS.raw;
return;
}
ResultCode result = RESULT_SUCCESS;
if (crs_buffer_ptr != crs_address) {
// TODO(wwylele): should be memory aliasing
std::shared_ptr<std::vector<u8>> crs_mem = std::make_shared<std::vector<u8>>(crs_size);
Memory::ReadBlock(crs_buffer_ptr, crs_mem->data(), crs_size);
result = Kernel::g_current_process->vm_manager.MapMemoryBlock(crs_address, crs_mem, 0, crs_size, Kernel::MemoryState::Code).Code();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error mapping memory block %08X", result.raw);
cmd_buff[1] = result.raw;
return;
}
result = Kernel::g_current_process->vm_manager.ReprotectRange(crs_address, crs_size, Kernel::VMAPermission::Read);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error reprotecting memory block %08X", result.raw);
cmd_buff[1] = result.raw;
return;
}
memory_synchronizer.AddMemoryBlock(crs_address, crs_buffer_ptr, crs_size);
} else {
// Do nothing if buffer_ptr == address
// TODO(wwylele): verify this behaviour. This is only seen in the web browser app,
// and the actual behaviour is unclear. "Do nothing" is probably an incorrect implement.
// There is also a chance that another issue causes the app passing wrong arguments.
LOG_WARNING(Service_LDR, "crs_buffer_ptr == crs_address (0x%08X)", crs_address);
}
CROHelper crs(crs_address);
crs.InitCRS();
result = crs.Rebase(0, crs_size, 0, 0, 0, 0, true);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error rebasing CRS 0x%08X", result.raw);
cmd_buff[1] = result.raw;
return;
}
memory_synchronizer.SynchronizeOriginalMemory();
loaded_crs = crs_address;
cmd_buff[1] = RESULT_SUCCESS.raw;
}
/**
* LDR_RO::LoadCRR service function
* Inputs:
* 1 : CRR buffer pointer
* 2 : CRR Size
* 3 : handle translation descriptor (zero)
* 4 : KProcess handle
* Outputs:
* 0 : Return header
* 1 : Result of function, 0 on success, otherwise error code
*/
static void LoadCRR(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 crr_buffer_ptr = cmd_buff[1];
u32 crr_size = cmd_buff[2];
u32 descriptor = cmd_buff[3];
u32 process = cmd_buff[4];
if (descriptor != 0) {
LOG_ERROR(Service_LDR, "IPC handle descriptor failed validation (0x%X)", descriptor);
cmd_buff[0] = IPC::MakeHeader(0, 1, 0);
cmd_buff[1] = ERROR_INVALID_DESCRIPTOR.raw;
return;
}
cmd_buff[0] = IPC::MakeHeader(2, 1, 0);
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_LDR, "(STUBBED) called, crr_buffer_ptr=0x%08X, crr_size=0x%08X, descriptor=0x%08X, process=0x%08X",
crr_buffer_ptr, crr_size, descriptor, process);
}
/**
* LDR_RO::UnloadCRR service function
* Inputs:
* 1 : CRR buffer pointer
* 2 : handle translation descriptor (zero)
* 3 : KProcess handle
* Outputs:
* 0 : Return header
* 1 : Result of function, 0 on success, otherwise error code
*/
static void UnloadCRR(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 crr_buffer_ptr = cmd_buff[1];
u32 descriptor = cmd_buff[2];
u32 process = cmd_buff[3];
if (descriptor != 0) {
LOG_ERROR(Service_LDR, "IPC handle descriptor failed validation (0x%X)", descriptor);
cmd_buff[0] = IPC::MakeHeader(0, 1, 0);
cmd_buff[1] = ERROR_INVALID_DESCRIPTOR.raw;
return;
}
cmd_buff[0] = IPC::MakeHeader(3, 1, 0);
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_LDR, "(STUBBED) called, crr_buffer_ptr=0x%08X, descriptor=0x%08X, process=0x%08X",
crr_buffer_ptr, descriptor, process);
}
/**
* LDR_RO::LoadCRO service function
* Inputs:
* 1 : CRO buffer pointer
* 2 : memory address where the CRO will be mapped
* 3 : CRO Size
* 4 : .data segment buffer pointer
* 5 : must be zero
* 6 : .data segment buffer size
* 7 : .bss segment buffer pointer
* 8 : .bss segment buffer size
* 9 : (bool) register CRO as auto-link module
* 10 : fix level
* 11 : CRR address (zero if use loaded CRR)
* 12 : handle translation descriptor (zero)
* 13 : KProcess handle
* Outputs:
* 0 : Return header
* 1 : Result of function, 0 on success, otherwise error code
* 2 : CRO fixed size
* Note:
* This service function has two versions. The function defined here is a
* unified one of two, with an additional parameter link_on_load_bug_fix.
* There is a dispatcher template below.
*/
static void LoadCRO(Service::Interface* self, bool link_on_load_bug_fix) {
u32* cmd_buff = Kernel::GetCommandBuffer();
VAddr cro_buffer_ptr = cmd_buff[1];
VAddr cro_address = cmd_buff[2];
u32 cro_size = cmd_buff[3];
VAddr data_segment_address = cmd_buff[4];
u32 zero = cmd_buff[5];
u32 data_segment_size = cmd_buff[6];
u32 bss_segment_address = cmd_buff[7];
u32 bss_segment_size = cmd_buff[8];
bool auto_link = (cmd_buff[9] & 0xFF) != 0;
u32 fix_level = cmd_buff[10];
VAddr crr_address = cmd_buff[11];
u32 descriptor = cmd_buff[12];
u32 process = cmd_buff[13];
LOG_DEBUG(Service_LDR, "called (%s), cro_buffer_ptr=0x%08X, cro_address=0x%08X, cro_size=0x%X, "
"data_segment_address=0x%08X, zero=%d, data_segment_size=0x%X, bss_segment_address=0x%08X, bss_segment_size=0x%X, "
"auto_link=%s, fix_level=%d, crr_address=0x%08X, descriptor=0x%08X, process=0x%08X",
link_on_load_bug_fix ? "new" : "old", cro_buffer_ptr, cro_address, cro_size,
data_segment_address, zero, data_segment_size, bss_segment_address, bss_segment_size,
auto_link ? "true" : "false", fix_level, crr_address, descriptor, process
);
if (descriptor != 0) {
LOG_ERROR(Service_LDR, "IPC handle descriptor failed validation (0x%X)", descriptor);
cmd_buff[0] = IPC::MakeHeader(0, 1, 0);
cmd_buff[1] = ERROR_INVALID_DESCRIPTOR.raw;
return;
}
memory_synchronizer.SynchronizeMappingMemory();
cmd_buff[0] = IPC::MakeHeader(link_on_load_bug_fix ? 9 : 4, 2, 0);
if (loaded_crs == 0) {
LOG_ERROR(Service_LDR, "Not initialized");
cmd_buff[1] = ERROR_NOT_INITIALIZED.raw;
return;
}
if (cro_size < CRO_HEADER_SIZE) {
LOG_ERROR(Service_LDR, "CRO too small");
cmd_buff[1] = ERROR_BUFFER_TOO_SMALL.raw;
return;
}
if (cro_buffer_ptr & Memory::PAGE_MASK) {
LOG_ERROR(Service_LDR, "CRO original address is not aligned");
cmd_buff[1] = ERROR_MISALIGNED_ADDRESS.raw;
return;
}
if (cro_address & Memory::PAGE_MASK) {
LOG_ERROR(Service_LDR, "CRO mapping address is not aligned");
cmd_buff[1] = ERROR_MISALIGNED_ADDRESS.raw;
return;
}
if (cro_size & Memory::PAGE_MASK) {
LOG_ERROR(Service_LDR, "CRO size is not aligned");
cmd_buff[1] = ERROR_MISALIGNED_SIZE.raw;
return;
}
if (!VerifyBufferState(cro_buffer_ptr, cro_size)) {
LOG_ERROR(Service_LDR, "CRO original buffer is in invalid state");
cmd_buff[1] = ERROR_INVALID_MEMORY_STATE.raw;
return;
}
if (cro_address < Memory::PROCESS_IMAGE_VADDR
|| cro_address + cro_size > Memory::PROCESS_IMAGE_VADDR_END) {
LOG_ERROR(Service_LDR, "CRO mapping address is not in the process image region");
cmd_buff[1] = ERROR_ILLEGAL_ADDRESS.raw;
return;
}
if (zero) {
LOG_ERROR(Service_LDR, "Zero is not zero %d", zero);
cmd_buff[1] = ResultCode(static_cast<ErrorDescription>(29), ErrorModule::RO, ErrorSummary::Internal, ErrorLevel::Usage).raw;
return;
}
ResultCode result = RESULT_SUCCESS;
if (cro_buffer_ptr != cro_address) {
// TODO(wwylele): should be memory aliasing
std::shared_ptr<std::vector<u8>> cro_mem = std::make_shared<std::vector<u8>>(cro_size);
Memory::ReadBlock(cro_buffer_ptr, cro_mem->data(), cro_size);
result = Kernel::g_current_process->vm_manager.MapMemoryBlock(cro_address, cro_mem, 0, cro_size, Kernel::MemoryState::Code).Code();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error mapping memory block %08X", result.raw);
cmd_buff[1] = result.raw;
return;
}
result = Kernel::g_current_process->vm_manager.ReprotectRange(cro_address, cro_size, Kernel::VMAPermission::Read);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error reprotecting memory block %08X", result.raw);
Kernel::g_current_process->vm_manager.UnmapRange(cro_address, cro_size);
cmd_buff[1] = result.raw;
return;
}
memory_synchronizer.AddMemoryBlock(cro_address, cro_buffer_ptr, cro_size);
} else {
// Do nothing if buffer_ptr == address
// TODO(wwylele): verify this behaviour.
// This is derived from the case of LoadCRS with buffer_ptr==address,
// and is never seen in any game. "Do nothing" is probably an incorrect implement.
// There is also a chance that this case is just prohibited.
LOG_WARNING(Service_LDR, "cro_buffer_ptr == cro_address (0x%08X)", cro_address);
}
CROHelper cro(cro_address);
result = cro.VerifyHash(cro_size, crr_address);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error verifying CRO in CRR %08X", result.raw);
Kernel::g_current_process->vm_manager.UnmapRange(cro_address, cro_size);
cmd_buff[1] = result.raw;
return;
}
result = cro.Rebase(loaded_crs, cro_size, data_segment_address, data_segment_size, bss_segment_address, bss_segment_size, false);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error rebasing CRO %08X", result.raw);
Kernel::g_current_process->vm_manager.UnmapRange(cro_address, cro_size);
cmd_buff[1] = result.raw;
return;
}
result = cro.Link(loaded_crs, link_on_load_bug_fix);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error linking CRO %08X", result.raw);
Kernel::g_current_process->vm_manager.UnmapRange(cro_address, cro_size);
cmd_buff[1] = result.raw;
return;
}
cro.Register(loaded_crs, auto_link);
u32 fix_size = cro.Fix(fix_level);
memory_synchronizer.SynchronizeOriginalMemory();
// TODO(wwylele): verify the behaviour when buffer_ptr == address
if (cro_buffer_ptr != cro_address) {
if (fix_size != cro_size) {
result = Kernel::g_current_process->vm_manager.UnmapRange(cro_address + fix_size, cro_size - fix_size);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error unmapping memory block %08X", result.raw);
Kernel::g_current_process->vm_manager.UnmapRange(cro_address, cro_size);
cmd_buff[1] = result.raw;
return;
}
}
// Changes the block size
memory_synchronizer.AddMemoryBlock(cro_address, cro_buffer_ptr, fix_size);
}
VAddr exe_begin;
u32 exe_size;
std::tie(exe_begin, exe_size) = cro.GetExecutablePages();
if (exe_begin) {
result = Kernel::g_current_process->vm_manager.ReprotectRange(exe_begin, exe_size, Kernel::VMAPermission::ReadExecute);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error reprotecting memory block %08X", result.raw);
Kernel::g_current_process->vm_manager.UnmapRange(cro_address, fix_size);
cmd_buff[1] = result.raw;
return;
}
}
Core::g_app_core->ClearInstructionCache();
LOG_INFO(Service_LDR, "CRO \"%s\" loaded at 0x%08X, fixed_end=0x%08X",
cro.ModuleName().data(), cro_address, cro_address+fix_size);
cmd_buff[1] = RESULT_SUCCESS.raw;
cmd_buff[2] = fix_size;
}
template <bool link_on_load_bug_fix>
static void LoadCRO(Service::Interface* self) {
LoadCRO(self, link_on_load_bug_fix);
}
/**
* LDR_RO::UnloadCRO service function
* Inputs:
* 1 : mapped CRO pointer
* 2 : zero? (RO service doesn't care)
* 3 : original CRO pointer
* 4 : handle translation descriptor (zero)
* 5 : KProcess handle
* Outputs:
* 0 : Return header
* 1 : Result of function, 0 on success, otherwise error code
*/
static void UnloadCRO(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
VAddr cro_address = cmd_buff[1];
u32 zero = cmd_buff[2];
VAddr cro_buffer_ptr = cmd_buff[3];
u32 descriptor = cmd_buff[4];
u32 process = cmd_buff[5];
LOG_DEBUG(Service_LDR, "called, cro_address=0x%08X, zero=%d, cro_buffer_ptr=0x%08X, descriptor=0x%08X, process=0x%08X",
cro_address, zero, cro_buffer_ptr, descriptor, process);
if (descriptor != 0) {
LOG_ERROR(Service_LDR, "IPC handle descriptor failed validation (0x%X)", descriptor);
cmd_buff[0] = IPC::MakeHeader(0, 1, 0);
cmd_buff[1] = ERROR_INVALID_DESCRIPTOR.raw;
return;
}
CROHelper cro(cro_address);
memory_synchronizer.SynchronizeMappingMemory();
cmd_buff[0] = IPC::MakeHeader(5, 1, 0);
if (loaded_crs == 0) {
LOG_ERROR(Service_LDR, "Not initialized");
cmd_buff[1] = ERROR_NOT_INITIALIZED.raw;
return;
}
if (cro_address & Memory::PAGE_MASK) {
LOG_ERROR(Service_LDR, "CRO address is not aligned");
cmd_buff[1] = ERROR_MISALIGNED_ADDRESS.raw;
return;
}
if (!cro.IsLoaded()) {
LOG_ERROR(Service_LDR, "Invalid or not loaded CRO");
cmd_buff[1] = ERROR_NOT_LOADED.raw;
return;
}
LOG_INFO(Service_LDR, "Unloading CRO \"%s\"", cro.ModuleName().data());
u32 fixed_size = cro.GetFixedSize();
cro.Unregister(loaded_crs);
ResultCode result = cro.Unlink(loaded_crs);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error unlinking CRO %08X", result.raw);
cmd_buff[1] = result.raw;
return;
}
// If the module is not fixed, clears all external/internal patches
// to restore the state before loading, so that it can be loaded again(?)
if (!cro.IsFixed()) {
result = cro.ClearPatches();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error clearing patches %08X", result.raw);
cmd_buff[1] = result.raw;
return;
}
}
cro.Unrebase(false);
memory_synchronizer.SynchronizeOriginalMemory();
// TODO(wwylele): verify the behaviour when buffer_ptr == address
if (cro_address != cro_buffer_ptr) {
result = Kernel::g_current_process->vm_manager.UnmapRange(cro_address, fixed_size);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error unmapping CRO %08X", result.raw);
}
memory_synchronizer.RemoveMemoryBlock(cro_address);
}
Core::g_app_core->ClearInstructionCache();
cmd_buff[1] = result.raw;
}
/**
* LDR_RO::LinkCRO service function
* Inputs:
* 1 : mapped CRO pointer
* 2 : handle translation descriptor (zero)
* 3 : KProcess handle
* Outputs:
* 0 : Return header
* 1 : Result of function, 0 on success, otherwise error code
*/
static void LinkCRO(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
VAddr cro_address = cmd_buff[1];
u32 descriptor = cmd_buff[2];
u32 process = cmd_buff[3];
LOG_DEBUG(Service_LDR, "called, cro_address=0x%08X, descriptor=0x%08X, process=0x%08X",
cro_address, descriptor, process);
if (descriptor != 0) {
LOG_ERROR(Service_LDR, "IPC handle descriptor failed validation (0x%X)", descriptor);
cmd_buff[0] = IPC::MakeHeader(0, 1, 0);
cmd_buff[1] = ERROR_INVALID_DESCRIPTOR.raw;
return;
}
CROHelper cro(cro_address);
memory_synchronizer.SynchronizeMappingMemory();
cmd_buff[0] = IPC::MakeHeader(6, 1, 0);
if (loaded_crs == 0) {
LOG_ERROR(Service_LDR, "Not initialized");
cmd_buff[1] = ERROR_NOT_INITIALIZED.raw;
return;
}
if (cro_address & Memory::PAGE_MASK) {
LOG_ERROR(Service_LDR, "CRO address is not aligned");
cmd_buff[1] = ERROR_MISALIGNED_ADDRESS.raw;
return;
}
if (!cro.IsLoaded()) {
LOG_ERROR(Service_LDR, "Invalid or not loaded CRO");
cmd_buff[1] = ERROR_NOT_LOADED.raw;
return;
}
LOG_INFO(Service_LDR, "Linking CRO \"%s\"", cro.ModuleName().data());
ResultCode result = cro.Link(loaded_crs, false);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error linking CRO %08X", result.raw);
}
memory_synchronizer.SynchronizeOriginalMemory();
Core::g_app_core->ClearInstructionCache();
cmd_buff[1] = result.raw;
}
/**
* LDR_RO::UnlinkCRO service function
* Inputs:
* 1 : mapped CRO pointer
* 2 : handle translation descriptor (zero)
* 3 : KProcess handle
* Outputs:
* 0 : Return header
* 1 : Result of function, 0 on success, otherwise error code
*/
static void UnlinkCRO(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
VAddr cro_address = cmd_buff[1];
u32 descriptor = cmd_buff[2];
u32 process = cmd_buff[3];
LOG_DEBUG(Service_LDR, "called, cro_address=0x%08X, descriptor=0x%08X, process=0x%08X",
cro_address, descriptor, process);
if (descriptor != 0) {
LOG_ERROR(Service_LDR, "IPC handle descriptor failed validation (0x%X)", descriptor);
cmd_buff[0] = IPC::MakeHeader(0, 1, 0);
cmd_buff[1] = ERROR_INVALID_DESCRIPTOR.raw;
return;
}
CROHelper cro(cro_address);
memory_synchronizer.SynchronizeMappingMemory();
cmd_buff[0] = IPC::MakeHeader(7, 1, 0);
if (loaded_crs == 0) {
LOG_ERROR(Service_LDR, "Not initialized");
cmd_buff[1] = ERROR_NOT_INITIALIZED.raw;
return;
}
if (cro_address & Memory::PAGE_MASK) {
LOG_ERROR(Service_LDR, "CRO address is not aligned");
cmd_buff[1] = ERROR_MISALIGNED_ADDRESS.raw;
return;
}
if (!cro.IsLoaded()) {
LOG_ERROR(Service_LDR, "Invalid or not loaded CRO");
cmd_buff[1] = ERROR_NOT_LOADED.raw;
return;
}
LOG_INFO(Service_LDR, "Unlinking CRO \"%s\"", cro.ModuleName().data());
ResultCode result = cro.Unlink(loaded_crs);
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error unlinking CRO %08X", result.raw);
}
memory_synchronizer.SynchronizeOriginalMemory();
Core::g_app_core->ClearInstructionCache();
cmd_buff[1] = result.raw;
}
/**
* LDR_RO::Shutdown service function
* Inputs:
* 1 : original CRS buffer pointer
* 2 : handle translation descriptor (zero)
* 3 : KProcess handle
* Outputs:
* 0 : Return header
* 1 : Result of function, 0 on success, otherwise error code
*/
static void Shutdown(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
VAddr crs_buffer_ptr = cmd_buff[1];
u32 descriptor = cmd_buff[2];
u32 process = cmd_buff[3];
LOG_DEBUG(Service_LDR, "called, crs_buffer_ptr=0x%08X, descriptor=0x%08X, process=0x%08X",
crs_buffer_ptr, descriptor, process);
if (descriptor != 0) {
LOG_ERROR(Service_LDR, "IPC handle descriptor failed validation (0x%X)", descriptor);
cmd_buff[0] = IPC::MakeHeader(0, 1, 0);
cmd_buff[1] = ERROR_INVALID_DESCRIPTOR.raw;
return;
}
memory_synchronizer.SynchronizeMappingMemory();
if (loaded_crs == 0) {
LOG_ERROR(Service_LDR, "Not initialized");
cmd_buff[1] = ERROR_NOT_INITIALIZED.raw;
return;
}
cmd_buff[0] = IPC::MakeHeader(8, 1, 0);
CROHelper crs(loaded_crs);
crs.Unrebase(true);
memory_synchronizer.SynchronizeOriginalMemory();
ResultCode result = RESULT_SUCCESS;
// TODO(wwylele): verify the behaviour when buffer_ptr == address
if (loaded_crs != crs_buffer_ptr) {
result = Kernel::g_current_process->vm_manager.UnmapRange(loaded_crs, crs.GetFileSize());
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error unmapping CRS %08X", result.raw);
}
memory_synchronizer.RemoveMemoryBlock(loaded_crs);
}
loaded_crs = 0;
cmd_buff[1] = result.raw;
}
const Interface::FunctionInfo FunctionTable[] = {
{0x000100C2, Initialize, "Initialize"},
{0x00020082, LoadCRR, "LoadCRR"},
{0x00030042, UnloadCRR, "UnloadCRR"},
{0x000402C2, LoadCRO<false>, "LoadCRO"},
{0x000500C2, UnloadCRO, "UnloadCRO"},
{0x00060042, LinkCRO, "LinkCRO"},
{0x00070042, UnlinkCRO, "UnlinkCRO"},
{0x00080042, Shutdown, "Shutdown"},
{0x000902C2, LoadCRO<true>, "LoadCRO_New"},
};
////////////////////////////////////////////////////////////////////////////////////////////////////
// Interface class
Interface::Interface() {
Register(FunctionTable);
loaded_crs = 0;
memory_synchronizer.Clear();
}
} // namespace
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