lux/yuzu
1
0
Fork 0
mirror of https://git.h3cjp.net/H3cJP/yuzu.git synced 2024-12-14 06:45:17 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1948 from wwylele/cro++

Browse source 
Implemented CRO
This commit is contained in:
Yuri Kunde Schlesner 2016-08-28 22:21:24 -07:00 committed by GitHub
parent 950f6c0c20 1c9612b791
commit 474586bc53
14 changed files with 3041 additions and 99 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
src/core/CMakeLists.txt
View file

@ -95,7 +95,9 @@ set(SRCS
hle/service/ir/ir_rst.cpp
hle/service/ir/ir_u.cpp
hle/service/ir/ir_user.cpp
hle/service/ldr_ro.cpp
hle/service/ldr_ro/cro_helper.cpp
hle/service/ldr_ro/ldr_ro.cpp
hle/service/ldr_ro/memory_synchronizer.cpp
hle/service/mic_u.cpp
hle/service/ndm/ndm.cpp
hle/service/ndm/ndm_u.cpp
@ -238,7 +240,9 @@ set(HEADERS
hle/service/ir/ir_rst.h
hle/service/ir/ir_u.h
hle/service/ir/ir_user.h
hle/service/ldr_ro.h
hle/service/ldr_ro/cro_helper.h
hle/service/ldr_ro/ldr_ro.h
hle/service/ldr_ro/memory_synchronizer.h
hle/service/mic_u.h
hle/service/ndm/ndm.h
hle/service/ndm/ndm_u.h

3
src/core/arm/arm_interface.h
View file

@ -32,6 +32,9 @@ public:
Run(1);
}
/// Clear all instruction cache
virtual void ClearInstructionCache() = 0;
/**
* Set the Program Counter to an address
* @param addr Address to set PC to

6
src/core/arm/dyncom/arm_dyncom.cpp
View file

@ -12,6 +12,7 @@
#include "core/arm/dyncom/arm_dyncom.h"
#include "core/arm/dyncom/arm_dyncom_interpreter.h"
#include "core/arm/dyncom/arm_dyncom_run.h"
#include "core/arm/dyncom/arm_dyncom_trans.h"
#include "core/core.h"
#include "core/core_timing.h"
@ -23,6 +24,11 @@ ARM_DynCom::ARM_DynCom(PrivilegeMode initial_mode) {
ARM_DynCom::~ARM_DynCom() {
}
void ARM_DynCom::ClearInstructionCache() {
state->instruction_cache.clear();
trans_cache_buf_top = 0;
}
void ARM_DynCom::SetPC(u32 pc) {
state->Reg[15] = pc;
}

2
src/core/arm/dyncom/arm_dyncom.h
View file

@ -21,6 +21,8 @@ public:
ARM_DynCom(PrivilegeMode initial_mode);
~ARM_DynCom();
void ClearInstructionCache() override;
void SetPC(u32 pc) override;
u32 GetPC() const override;
u32 GetReg(int index) const override;

96
src/core/hle/service/ldr_ro.cpp
View file

@ -1,96 +0,0 @@
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/common_types.h"
#include "common/logging/log.h"
#include "core/hle/service/ldr_ro.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace LDR_RO
namespace LDR_RO {
/**
* LDR_RO::Initialize service function
* Inputs:
* 1 : CRS buffer pointer
* 2 : CRS Size
* 3 : Process memory address where the CRS will be mapped
* 4 : Value, must be 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();
u32 crs_buffer_ptr = cmd_buff[1];
u32 crs_size = cmd_buff[2];
u32 address = cmd_buff[3];
u32 value = cmd_buff[4];
u32 process = cmd_buff[5];
if (value != 0) {
LOG_ERROR(Service_LDR, "This value should be zero, but is actually %u!", value);
}
// TODO(purpasmart96): Verify return header on HW
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_LDR, "(STUBBED) called. crs_buffer_ptr=0x%08X, crs_size=0x%08X, address=0x%08X, value=0x%08X, process=0x%08X",
crs_buffer_ptr, crs_size, address, value, process);
}
/**
* LDR_RO::LoadCRR service function
* Inputs:
* 1 : CRS buffer pointer
* 2 : CRS Size
* 3 : Value, must be 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 crs_buffer_ptr = cmd_buff[1];
u32 crs_size = cmd_buff[2];
u32 value = cmd_buff[3];
u32 process = cmd_buff[4];
if (value != 0) {
LOG_ERROR(Service_LDR, "This value should be zero, but is actually %u!", value);
}
// TODO(purpasmart96): Verify return header on HW
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_LDR, "(STUBBED) called. crs_buffer_ptr=0x%08X, crs_size=0x%08X, value=0x%08X, process=0x%08X",
crs_buffer_ptr, crs_size, value, process);
}
const Interface::FunctionInfo FunctionTable[] = {
{0x000100C2, Initialize, "Initialize"},
{0x00020082, LoadCRR, "LoadCRR"},
{0x00030042, nullptr, "UnloadCCR"},
{0x000402C2, nullptr, "LoadExeCRO"},
{0x000500C2, nullptr, "LoadCROSymbols"},
{0x00060042, nullptr, "CRO_Load?"},
{0x00070042, nullptr, "LoadCROSymbols"},
{0x00080042, nullptr, "Shutdown"},
{0x000902C2, nullptr, "LoadExeCRO_New?"},
};
////////////////////////////////////////////////////////////////////////////////////////////////////
// Interface class
Interface::Interface() {
Register(FunctionTable);
}
} // namespace

1477
src/core/hle/service/ldr_ro/cro_helper.cpp Normal file
View file

File diff suppressed because it is too large Load diff

691
src/core/hle/service/ldr_ro/cro_helper.h Normal file
View file

@ -0,0 +1,691 @@
// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <tuple>
#include "common/common_types.h"
#include "common/swap.h"
#include "core/memory.h"
#include "core/hle/result.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;
/// Represents a loaded module (CRO) with interfaces manipulating it.
class CROHelper final {
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);
/**
* Unrebases the module.
* @param is_crs true if the module itself is the static module
*/
void Unrebase(bool is_crs);
/**
* 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;
/**
* 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);
/**
* 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);
/**
* Clears all relocations to zero.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ClearRelocations();
/// Initialize this module as the static module (CRS)
void InitCRS();
/**
* 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);
/**
* Unregisters this module and removes from the module list.
* @param crs_address the virtual address of the static module
*/
void Unregister(VAddr crs_address);
/**
* 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;
/**
* 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);
bool IsFixed() const {
return GetField(Magic) == MAGIC_FIXD;
}
u32 GetFixedSize() const {
return GetField(FixedSize);
}
bool IsLoaded() const;
/**
* 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;
private:
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,
ExternalRelocationTableOffset,
ExternalRelocationNum,
ImportNamedSymbolTableOffset,
ImportNamedSymbolNum,
ImportIndexedSymbolTableOffset,
ImportIndexedSymbolNum,
ImportAnonymousSymbolTableOffset,
ImportAnonymousSymbolNum,
ImportStringsOffset,
ImportStringsSize,
StaticAnonymousSymbolTableOffset,
StaticAnonymousSymbolNum,
InternalRelocationTableOffset,
InternalRelocationNum,
StaticRelocationTableOffset,
StaticRelocationNum,
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 relocation_batch_offset; // pointing to a relocation batch in ExternalRelocationTable
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 relocation_batch_offset; // pointing to a relocation batch in ExternalRelocationTable
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 relocation_batch_offset; // pointing to a relocation batch in ExternalRelocationTable
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 RelocationType : u8 {
Nothing = 0,
AbsoluteAddress = 2,
RelativeAddress = 3,
ThumbBranch = 10,
ArmBranch = 28,
ModifyArmBranch = 29,
AbsoluteAddress2 = 38,
AlignedRelativeAddress = 42,
};
struct RelocationEntry {
SegmentTag target_position; // to self's segment as an ExternalRelocationEntry; to static module segment as a StaticRelocationEntry
RelocationType 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 addend;
};
/// Identifies a normal cross-module relocation.
struct ExternalRelocationEntry : RelocationEntry {
static constexpr HeaderField TABLE_OFFSET_FIELD = ExternalRelocationTableOffset;
};
ASSERT_CRO_STRUCT(ExternalRelocationEntry, 12);
/// Identifies a special static relocation (no game is known using this).
struct StaticRelocationEntry : RelocationEntry {
static constexpr HeaderField TABLE_OFFSET_FIELD = StaticRelocationTableOffset;
};
ASSERT_CRO_STRUCT(StaticRelocationEntry, 12);
/// Identifies a in-module relocation.
struct InternalRelocationEntry {
SegmentTag target_position; // to self's segment
RelocationType type;
u8 symbol_segment;
INSERT_PADDING_BYTES(2);
u32_le addend;
static constexpr HeaderField TABLE_OFFSET_FIELD = InternalRelocationTableOffset;
};
ASSERT_CRO_STRUCT(InternalRelocationEntry, 12);
/// Identifies a special static anonymous symbol (no game is known using this).
struct StaticAnonymousSymbolEntry {
SegmentTag symbol_position; // to self's segment
u32_le relocation_batch_offset; // pointing to a relocation batch in StaticRelocationTable
static constexpr HeaderField TABLE_OFFSET_FIELD = StaticAnonymousSymbolTableOffset;
};
ASSERT_CRO_STRUCT(StaticAnonymousSymbolEntry, 8);
/**
* Entry size of each table, from Code to StaticRelocationTable.
* 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;
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 relocation
* @param target_address where to apply the relocation
* @param relocation_type the type of the relocation
* @param addend address addend applied to the relocated symbol
* @param symbol_address the symbol address to be relocated 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 ApplyRelocation(VAddr target_address, RelocationType relocation_type,
u32 addend, u32 symbol_address, u32 target_future_address);
/**
* Clears a relocation to zero
* @param target_address where to apply the relocation
* @param relocation_type the type of the relocation
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ClearRelocation(VAddr target_address, RelocationType relocation_type);
/**
* Applies or resets a batch of relocations
* @param batch the virtual address of the first relocation in the batch
* @param symbol_address the symbol address to be relocated 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 ApplyRelocationBatch(VAddr batch, u32 symbol_address, bool reset = false);
/**
* 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;
/**
* 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);
/**
* 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<VAddr> with the virtual address of .data segment in CRO.
*/
ResultVal<VAddr> RebaseSegmentTable(u32 cro_size,
VAddr data_segment_address, u32 data_segment_size,
VAddr bss_segment_address, u32 bss_segment_size);
/**
* 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();
/**
* Verifies indices in export tree table.
* @returns ResultCode RESULT_SUCCESS if all indices are verified as valid, otherwise error code.
*/
ResultCode VerifyExportTreeTable() const;
/**
* 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();
/**
* 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();
/**
* 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();
/**
* 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();
/**
* Gets the address of OnUnresolved function in this module.
* Used as the applied symbol for reset relocation.
* @returns the virtual address of OnUnresolved. 0 if not provided.
*/
VAddr GetOnUnresolvedAddress();
/**
* Resets all external relocations to unresolved state.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ResetExternalRelocations();
/**
* Clears all external relocations to zero.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ClearExternalRelocations();
/**
* 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);
/**
* Applies all internal relocations 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 ApplyInternalRelocations(u32 old_data_segment_address);
/**
* Clears all internal relocations to zero.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ClearInternalRelocations();
/// Unrebases offsets in imported anonymous symbol table
void UnrebaseImportAnonymousSymbolTable();
/// Unrebases offsets in imported indexed symbol table
void UnrebaseImportIndexedSymbolTable();
/// Unrebases offsets in imported named symbol table
void UnrebaseImportNamedSymbolTable();
/// Unrebases offsets in imported module table
void UnrebaseImportModuleTable();
/// Unrebases offsets in exported named symbol table
void UnrebaseExportNamedSymbolTable();
/// Unrebases offsets in segment table
void UnrebaseSegmentTable();
/// Unrebases offsets in module header
void UnrebaseHeader();
/**
* 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);
/**
* Resets all imported named symbols of this module to unresolved state.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ResetImportNamedSymbol();
/**
* Resets all imported indexed symbols of this module to unresolved state.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ResetImportIndexedSymbol();
/**
* Resets all imported anonymous symbols of this module to unresolved state.
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode ResetImportAnonymousSymbol();
/**
* 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);
/**
* 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);
/**
* 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);
/**
* 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);
/**
* 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);
/**
* 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 ApplyExitRelocations(VAddr crs_address);
};
} // namespace

748
src/core/hle/service/ldr_ro/ldr_ro.cpp Normal file
View file

@ -0,0 +1,748 @@
// 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 "core/arm/arm_interface.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/hle/service/ldr_ro/cro_helper.h"
#include "core/hle/service/ldr_ro/ldr_ro.h"
#include "core/hle/service/ldr_ro/memory_synchronizer.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace LDR_RO
namespace LDR_RO {
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 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:
* 0 : 0x000100C2
* 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:
* 0 : 0x00020082
* 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:
* 0 : 0x00030042
* 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:
* 0 : 0x000402C2 (old) / 0x000902C2 (new)
* 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;
}
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.ResizeMemoryBlock(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:
* 0 : 0x000500C2
* 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);
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 relocations
// to restore the state before loading, so that it can be loaded again(?)
if (!cro.IsFixed()) {
result = cro.ClearRelocations();
if (result.IsError()) {
LOG_ERROR(Service_LDR, "Error clearing relocations %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, cro_buffer_ptr);
}
Core::g_app_core->ClearInstructionCache();
cmd_buff[1] = result.raw;
}
/**
* LDR_RO::LinkCRO service function
* Inputs:
* 0 : 0x00060042
* 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);
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:
* 0 : 0x00070042
* 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);
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:
* 0 : 0x00080042
* 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;
}
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, crs_buffer_ptr);
}
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

0
src/core/hle/service/ldr_ro.h → src/core/hle/service/ldr_ro/ldr_ro.h
View file

46
src/core/hle/service/ldr_ro/memory_synchronizer.cpp Normal file
View file

@ -0,0 +1,46 @@
// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include "common/assert.h"
#include "core/hle/service/ldr_ro/memory_synchronizer.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace LDR_RO
namespace LDR_RO {
auto MemorySynchronizer::FindMemoryBlock(VAddr mapping, VAddr original) {
auto block = std::find_if(memory_blocks.begin(), memory_blocks.end(), [=](MemoryBlock& b){
return b.original == original;
});
ASSERT(block->mapping == mapping);
return block;
}
void MemorySynchronizer::Clear() {
memory_blocks.clear();
}
void MemorySynchronizer::AddMemoryBlock(VAddr mapping, VAddr original, u32 size) {
memory_blocks.push_back(MemoryBlock{mapping, original, size});
}
void MemorySynchronizer::ResizeMemoryBlock(VAddr mapping, VAddr original, u32 size) {
FindMemoryBlock(mapping, original)->size = size;
}
void MemorySynchronizer::RemoveMemoryBlock(VAddr mapping, VAddr original) {
memory_blocks.erase(FindMemoryBlock(mapping, original));
}
void MemorySynchronizer::SynchronizeOriginalMemory() {
for (auto& block : memory_blocks) {
Memory::CopyBlock(block.original, block.mapping, block.size);
}
}
} // namespace

44
src/core/hle/service/ldr_ro/memory_synchronizer.h Normal file
View file

@ -0,0 +1,44 @@
// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <vector>
#include "core/memory.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace LDR_RO
namespace LDR_RO {
/**
* 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 and the mapping memory. So we use this to synchronize
* all original buffers with mapping memory after modifying the content.
*/
class MemorySynchronizer {
public:
void Clear();
void AddMemoryBlock(VAddr mapping, VAddr original, u32 size);
void ResizeMemoryBlock(VAddr mapping, VAddr original, u32 size);
void RemoveMemoryBlock(VAddr mapping, VAddr original);
void SynchronizeOriginalMemory();
private:
struct MemoryBlock {
VAddr mapping;
VAddr original;
u32 size;
};
std::vector<MemoryBlock> memory_blocks;
auto FindMemoryBlock(VAddr mapping, VAddr original);
};
} // namespace

2
src/core/hle/service/service.cpp
View file

@ -15,7 +15,6 @@
#include "core/hle/service/gsp_gpu.h"
#include "core/hle/service/gsp_lcd.h"
#include "core/hle/service/http_c.h"
#include "core/hle/service/ldr_ro.h"
#include "core/hle/service/mic_u.h"
#include "core/hle/service/ns_s.h"
#include "core/hle/service/nwm_uds.h"
@ -36,6 +35,7 @@
#include "core/hle/service/cfg/cfg.h"
#include "core/hle/service/hid/hid.h"
#include "core/hle/service/ir/ir.h"
#include "core/hle/service/ldr_ro/ldr_ro.h"
#include "core/hle/service/ndm/ndm.h"
#include "core/hle/service/news/news.h"
#include "core/hle/service/nim/nim.h"

14
src/core/memory.cpp
View file

@ -280,6 +280,20 @@ u8* GetPointer(const VAddr vaddr) {
return nullptr;
}
std::string ReadCString(VAddr vaddr, std::size_t max_length) {
std::string string;
string.reserve(max_length);
for (std::size_t i = 0; i < max_length; ++i) {
char c = Read8(vaddr);
if (c == '\0')
break;
string.push_back(c);
++vaddr;
}
string.shrink_to_fit();
return string;
}
u8* GetPhysicalPointer(PAddr address) {
// TODO(Subv): This call should not go through the application's memory mapping.
return GetPointer(PhysicalToVirtualAddress(address));

3
src/core/memory.h
View file

@ -5,6 +5,7 @@
#pragma once
#include <cstddef>
#include <string>
#include "common/common_types.h"
@ -130,6 +131,8 @@ void CopyBlock(VAddr dest_addr, VAddr src_addr, size_t size);
u8* GetPointer(VAddr virtual_address);
std::string ReadCString(VAddr virtual_address, std::size_t max_length);
/**
* Converts a virtual address inside a region with 1:1 mapping to physical memory to a physical
* address. This should be used by services to translate addresses for use by the hardware.