summaryrefslogtreecommitdiffstats
path: root/src/core/hle
diff options
context:
space:
mode:
Diffstat (limited to 'src/core/hle')
-rw-r--r--src/core/hle/service/ldr_ro.cpp96
-rw-r--r--src/core/hle/service/ldr_ro/cro_helper.cpp1477
-rw-r--r--src/core/hle/service/ldr_ro/cro_helper.h691
-rw-r--r--src/core/hle/service/ldr_ro/ldr_ro.cpp748
-rw-r--r--src/core/hle/service/ldr_ro/ldr_ro.h (renamed from src/core/hle/service/ldr_ro.h)0
-rw-r--r--src/core/hle/service/ldr_ro/memory_synchronizer.cpp46
-rw-r--r--src/core/hle/service/ldr_ro/memory_synchronizer.h44
-rw-r--r--src/core/hle/service/service.cpp2
8 files changed, 3007 insertions, 97 deletions
diff --git a/src/core/hle/service/ldr_ro.cpp b/src/core/hle/service/ldr_ro.cpp
deleted file mode 100644
index ecec2ce32..000000000
--- a/src/core/hle/service/ldr_ro.cpp
+++ /dev/null
@@ -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
diff --git a/src/core/hle/service/ldr_ro/cro_helper.cpp b/src/core/hle/service/ldr_ro/cro_helper.cpp
new file mode 100644
index 000000000..3d2a613ee
--- /dev/null
+++ b/src/core/hle/service/ldr_ro/cro_helper.cpp
@@ -0,0 +1,1477 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/alignment.h"
+#include "common/logging/log.h"
+#include "common/scope_exit.h"
+
+#include "core/hle/service/ldr_ro/cro_helper.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace LDR_RO
+
+namespace LDR_RO {
+
+static const ResultCode ERROR_BUFFER_TOO_SMALL = // 0xE0E12C1F
+ ResultCode(static_cast<ErrorDescription>(31), ErrorModule::RO, ErrorSummary::InvalidArgument, ErrorLevel::Usage);
+
+static ResultCode CROFormatError(u32 description) {
+ return ResultCode(static_cast<ErrorDescription>(description), ErrorModule::RO, ErrorSummary::WrongArgument, ErrorLevel::Permanent);
+}
+
+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(ExternalRelocationEntry),
+ sizeof(ImportNamedSymbolEntry),
+ sizeof(ImportIndexedSymbolEntry),
+ sizeof(ImportAnonymousSymbolEntry),
+ 1, // import strings
+ sizeof(StaticAnonymousSymbolEntry),
+ sizeof(InternalRelocationEntry),
+ sizeof(StaticRelocationEntry)
+}};
+
+const std::array<CROHelper::HeaderField, 4> CROHelper::FIX_BARRIERS {{
+ Fix0Barrier,
+ Fix1Barrier,
+ Fix2Barrier,
+ Fix3Barrier
+}};
+
+VAddr CROHelper::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;
+}
+
+ResultCode CROHelper::ApplyRelocation(VAddr target_address, RelocationType relocation_type,
+ u32 addend, u32 symbol_address, u32 target_future_address) {
+
+ switch (relocation_type) {
+ case RelocationType::Nothing:
+ break;
+ case RelocationType::AbsoluteAddress:
+ case RelocationType::AbsoluteAddress2:
+ Memory::Write32(target_address, symbol_address + addend);
+ break;
+ case RelocationType::RelativeAddress:
+ Memory::Write32(target_address, symbol_address + addend - target_future_address);
+ break;
+ case RelocationType::ThumbBranch:
+ case RelocationType::ArmBranch:
+ case RelocationType::ModifyArmBranch:
+ case RelocationType::AlignedRelativeAddress:
+ // TODO(wwylele): implement other types
+ UNIMPLEMENTED();
+ break;
+ default:
+ return CROFormatError(0x22);
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::ClearRelocation(VAddr target_address, RelocationType relocation_type) {
+ switch (relocation_type) {
+ case RelocationType::Nothing:
+ break;
+ case RelocationType::AbsoluteAddress:
+ case RelocationType::AbsoluteAddress2:
+ case RelocationType::RelativeAddress:
+ Memory::Write32(target_address, 0);
+ break;
+ case RelocationType::ThumbBranch:
+ case RelocationType::ArmBranch:
+ case RelocationType::ModifyArmBranch:
+ case RelocationType::AlignedRelativeAddress:
+ // TODO(wwylele): implement other types
+ UNIMPLEMENTED();
+ break;
+ default:
+ return CROFormatError(0x22);
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::ApplyRelocationBatch(VAddr batch, u32 symbol_address, bool reset) {
+ if (symbol_address == 0 && !reset)
+ return CROFormatError(0x10);
+
+ VAddr relocation_address = batch;
+ while (true) {
+ RelocationEntry relocation;
+ Memory::ReadBlock(relocation_address, &relocation, sizeof(RelocationEntry));
+
+ VAddr relocation_target = SegmentTagToAddress(relocation.target_position);
+ if (relocation_target == 0) {
+ return CROFormatError(0x12);
+ }
+
+ ResultCode result = ApplyRelocation(relocation_target, relocation.type, relocation.addend, symbol_address, relocation_target);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation %08X", result.raw);
+ return result;
+ }
+
+ if (relocation.is_batch_end)
+ break;
+
+ relocation_address += sizeof(RelocationEntry);
+ }
+
+ RelocationEntry relocation;
+ Memory::ReadBlock(batch, &relocation, sizeof(RelocationEntry));
+ relocation.is_batch_resolved = reset ? 0 : 1;
+ Memory::WriteBlock(batch, &relocation, sizeof(RelocationEntry));
+ return RESULT_SUCCESS;
+}
+
+VAddr CROHelper::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);
+}
+
+ResultCode CROHelper::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,
+ ExternalRelocationTableOffset,
+ ImportNamedSymbolTableOffset,
+ ImportIndexedSymbolTableOffset,
+ ImportAnonymousSymbolTableOffset,
+ ImportStringsOffset,
+ StaticAnonymousSymbolTableOffset,
+ InternalRelocationTableOffset,
+ StaticRelocationTableOffset,
+ 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;
+}
+
+ResultVal<VAddr> CROHelper::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 + module_address);
+}
+
+ResultCode CROHelper::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;
+}
+
+ResultCode CROHelper::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;
+}
+
+ResultCode CROHelper::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;
+}
+
+ResultCode CROHelper::RebaseImportNamedSymbolTable() {
+ VAddr import_strings_offset = GetField(ImportStringsOffset);
+ VAddr import_strings_end = import_strings_offset + GetField(ImportStringsSize);
+ VAddr external_relocation_table_offset = GetField(ExternalRelocationTableOffset);
+ VAddr external_relocation_table_end = external_relocation_table_offset + GetField(ExternalRelocationNum) * sizeof(ExternalRelocationEntry);
+
+ 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.relocation_batch_offset != 0) {
+ entry.relocation_batch_offset += module_address;
+ if (entry.relocation_batch_offset < external_relocation_table_offset
+ || entry.relocation_batch_offset > external_relocation_table_end) {
+ return CROFormatError(0x1B);
+ }
+ }
+
+ SetEntry(i, entry);
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::RebaseImportIndexedSymbolTable() {
+ VAddr external_relocation_table_offset = GetField(ExternalRelocationTableOffset);
+ VAddr external_relocation_table_end = external_relocation_table_offset + GetField(ExternalRelocationNum) * sizeof(ExternalRelocationEntry);
+
+ u32 num = GetField(ImportIndexedSymbolNum);
+ for (u32 i = 0; i < num ; ++i) {
+ ImportIndexedSymbolEntry entry;
+ GetEntry(i, entry);
+
+ if (entry.relocation_batch_offset != 0) {
+ entry.relocation_batch_offset += module_address;
+ if (entry.relocation_batch_offset < external_relocation_table_offset
+ || entry.relocation_batch_offset > external_relocation_table_end) {
+ return CROFormatError(0x14);
+ }
+ }
+
+ SetEntry(i, entry);
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::RebaseImportAnonymousSymbolTable() {
+ VAddr external_relocation_table_offset = GetField(ExternalRelocationTableOffset);
+ VAddr external_relocation_table_end = external_relocation_table_offset + GetField(ExternalRelocationNum) * sizeof(ExternalRelocationEntry);
+
+ u32 num = GetField(ImportAnonymousSymbolNum);
+ for (u32 i = 0; i < num ; ++i) {
+ ImportAnonymousSymbolEntry entry;
+ GetEntry(i, entry);
+
+ if (entry.relocation_batch_offset != 0) {
+ entry.relocation_batch_offset += module_address;
+ if (entry.relocation_batch_offset < external_relocation_table_offset
+ || entry.relocation_batch_offset > external_relocation_table_end) {
+ return CROFormatError(0x17);
+ }
+ }
+
+ SetEntry(i, entry);
+ }
+ return RESULT_SUCCESS;
+}
+
+VAddr CROHelper::GetOnUnresolvedAddress() {
+ return SegmentTagToAddress(SegmentTag(GetField(OnUnresolvedSegmentTag)));
+}
+
+ResultCode CROHelper::ResetExternalRelocations() {
+ u32 unresolved_symbol = GetOnUnresolvedAddress();
+ u32 external_relocation_num = GetField(ExternalRelocationNum);
+ ExternalRelocationEntry relocation;
+
+ // Verifies that the last relocation is the end of a batch
+ GetEntry(external_relocation_num - 1, relocation);
+ if (!relocation.is_batch_end) {
+ return CROFormatError(0x12);
+ }
+
+ bool batch_begin = true;
+ for (u32 i = 0; i < external_relocation_num; ++i) {
+ GetEntry(i, relocation);
+ VAddr relocation_target = SegmentTagToAddress(relocation.target_position);
+
+ if (relocation_target == 0) {
+ return CROFormatError(0x12);
+ }
+
+ ResultCode result = ApplyRelocation(relocation_target, relocation.type, relocation.addend, unresolved_symbol, relocation_target);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation %08X", result.raw);
+ return result;
+ }
+
+ if (batch_begin) {
+ // resets to unresolved state
+ relocation.is_batch_resolved = 0;
+ SetEntry(i, relocation);
+ }
+
+ // if current is an end, then the next is a beginning
+ batch_begin = relocation.is_batch_end != 0;
+ }
+
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::ClearExternalRelocations() {
+ u32 external_relocation_num = GetField(ExternalRelocationNum);
+ ExternalRelocationEntry relocation;
+
+ bool batch_begin = true;
+ for (u32 i = 0; i < external_relocation_num; ++i) {
+ GetEntry(i, relocation);
+ VAddr relocation_target = SegmentTagToAddress(relocation.target_position);
+
+ if (relocation_target == 0) {
+ return CROFormatError(0x12);
+ }
+
+ ResultCode result = ClearRelocation(relocation_target, relocation.type);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error clearing relocation %08X", result.raw);
+ return result;
+ }
+
+ if (batch_begin) {
+ // resets to unresolved state
+ relocation.is_batch_resolved = 0;
+ SetEntry(i, relocation);
+ }
+
+ // if current is an end, then the next is a beginning
+ batch_begin = relocation.is_batch_end != 0;
+ }
+
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::ApplyStaticAnonymousSymbolToCRS(VAddr crs_address) {
+ VAddr static_relocation_table_offset = GetField(StaticRelocationTableOffset);
+ VAddr static_relocation_table_end = static_relocation_table_offset + GetField(StaticRelocationNum) * sizeof(StaticRelocationEntry);
+
+ 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.relocation_batch_offset + module_address;
+
+ if (batch_address < static_relocation_table_offset
+ || batch_address > static_relocation_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.ApplyRelocationBatch(batch_address, symbol_address);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation batch %08X", result.raw);
+ return result;
+ }
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::ApplyInternalRelocations(u32 old_data_segment_address) {
+ u32 segment_num = GetField(SegmentNum);
+ u32 internal_relocation_num = GetField(InternalRelocationNum);
+ for (u32 i = 0; i < internal_relocation_num; ++i) {
+ InternalRelocationEntry relocation;
+ GetEntry(i, relocation);
+ VAddr target_addressB = SegmentTagToAddress(relocation.target_position);
+ if (target_addressB == 0) {
+ return CROFormatError(0x15);
+ }
+
+ VAddr target_address;
+ SegmentEntry target_segment;
+ GetEntry(relocation.target_position.segment_index, target_segment);
+
+ if (target_segment.type == SegmentType::Data) {
+ // If the relocation is to the .data segment, we need to relocate it in the old buffer
+ target_address = old_data_segment_address + relocation.target_position.offset_into_segment;
+ } else {
+ target_address = target_addressB;
+ }
+
+ if (relocation.symbol_segment >= segment_num) {
+ return CROFormatError(0x15);
+ }
+
+ SegmentEntry symbol_segment;
+ GetEntry(relocation.symbol_segment, symbol_segment);
+ LOG_TRACE(Service_LDR, "Internally relocates 0x%08X with 0x%08X", target_address, symbol_segment.offset);
+ ResultCode result = ApplyRelocation(target_address, relocation.type, relocation.addend, symbol_segment.offset, target_addressB);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation %08X", result.raw);
+ return result;
+ }
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::ClearInternalRelocations() {
+ u32 internal_relocation_num = GetField(InternalRelocationNum);
+ for (u32 i = 0; i < internal_relocation_num; ++i) {
+ InternalRelocationEntry relocation;
+ GetEntry(i, relocation);
+ VAddr target_address = SegmentTagToAddress(relocation.target_position);
+
+ if (target_address == 0) {
+ return CROFormatError(0x15);
+ }
+
+ ResultCode result = ClearRelocation(target_address, relocation.type);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error clearing relocation %08X", result.raw);
+ return result;
+ }
+ }
+ return RESULT_SUCCESS;
+}
+
+void CROHelper::UnrebaseImportAnonymousSymbolTable() {
+ u32 num = GetField(ImportAnonymousSymbolNum);
+ for (u32 i = 0; i < num; ++i) {
+ ImportAnonymousSymbolEntry entry;
+ GetEntry(i, entry);
+
+ if (entry.relocation_batch_offset != 0) {
+ entry.relocation_batch_offset -= module_address;
+ }
+
+ SetEntry(i, entry);
+ }
+}
+
+void CROHelper::UnrebaseImportIndexedSymbolTable() {
+ u32 num = GetField(ImportIndexedSymbolNum);
+ for (u32 i = 0; i < num; ++i) {
+ ImportIndexedSymbolEntry entry;
+ GetEntry(i, entry);
+
+ if (entry.relocation_batch_offset != 0) {
+ entry.relocation_batch_offset -= module_address;
+ }
+
+ SetEntry(i, entry);
+ }
+}
+
+void CROHelper::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.relocation_batch_offset) {
+ entry.relocation_batch_offset -= module_address;
+ }
+
+ SetEntry(i, entry);
+ }
+}
+
+void CROHelper::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);
+ }
+}
+
+void CROHelper::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);
+ }
+}
+
+void CROHelper::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);
+ }
+}
+
+void CROHelper::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);
+ }
+}
+
+ResultCode CROHelper::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 relocation_addr = entry.relocation_batch_offset;
+ ExternalRelocationEntry relocation_entry;
+ Memory::ReadBlock(relocation_addr, &relocation_entry, sizeof(ExternalRelocationEntry));
+
+ if (!relocation_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 = ApplyRelocationBatch(relocation_addr, symbol_address);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation batch %08X", result.raw);
+ return result;
+ }
+
+ return MakeResult<bool>(false);
+ }
+
+ return MakeResult<bool>(true);
+ });
+ if (result.IsError()) {
+ return result;
+ }
+ }
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::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 relocation_addr = entry.relocation_batch_offset;
+ ExternalRelocationEntry relocation_entry;
+ Memory::ReadBlock(relocation_addr, &relocation_entry, sizeof(ExternalRelocationEntry));
+
+ ResultCode result = ApplyRelocationBatch(relocation_addr, unresolved_symbol, true);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error reseting relocation batch %08X", result.raw);
+ return result;
+ }
+
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::ResetImportIndexedSymbol() {
+ u32 unresolved_symbol = GetOnUnresolvedAddress();
+
+ u32 import_num = GetField(ImportIndexedSymbolNum);
+ for (u32 i = 0; i < import_num; ++i) {
+ ImportIndexedSymbolEntry entry;
+ GetEntry(i, entry);
+ VAddr relocation_addr = entry.relocation_batch_offset;
+ ExternalRelocationEntry relocation_entry;
+ Memory::ReadBlock(relocation_addr, &relocation_entry, sizeof(ExternalRelocationEntry));
+
+ ResultCode result = ApplyRelocationBatch(relocation_addr, unresolved_symbol, true);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error reseting relocation batch %08X", result.raw);
+ return result;
+ }
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::ResetImportAnonymousSymbol() {
+ u32 unresolved_symbol = GetOnUnresolvedAddress();
+
+ u32 import_num = GetField(ImportAnonymousSymbolNum);
+ for (u32 i = 0; i < import_num; ++i) {
+ ImportAnonymousSymbolEntry entry;
+ GetEntry(i, entry);
+ VAddr relocation_addr = entry.relocation_batch_offset;
+ ExternalRelocationEntry relocation_entry;
+ Memory::ReadBlock(relocation_addr, &relocation_entry, sizeof(ExternalRelocationEntry));
+
+ ResultCode result = ApplyRelocationBatch(relocation_addr, unresolved_symbol, true);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error reseting relocation batch %08X", result.raw);
+ return result;
+ }
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::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 = ApplyRelocationBatch(im.relocation_batch_offset, symbol_address);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation 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 = ApplyRelocationBatch(im.relocation_batch_offset, symbol_address);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation batch %08X", result.raw);
+ return result;
+ }
+ }
+ return MakeResult<bool>(false);
+ }
+ return MakeResult<bool>(true);
+ });
+ if (result.IsError()) {
+ return result;
+ }
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::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 relocation_addr = entry.relocation_batch_offset;
+ ExternalRelocationEntry relocation_entry;
+ Memory::ReadBlock(relocation_addr, &relocation_entry, sizeof(ExternalRelocationEntry));
+
+ if (!relocation_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.ApplyRelocationBatch(relocation_addr, symbol_address);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation batch %08X", result.raw);
+ return result;
+ }
+ }
+ }
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::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 relocation_addr = entry.relocation_batch_offset;
+ ExternalRelocationEntry relocation_entry;
+ Memory::ReadBlock(relocation_addr, &relocation_entry, sizeof(ExternalRelocationEntry));
+
+ if (relocation_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.ApplyRelocationBatch(relocation_addr, unresolved_symbol, true);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation batch %08X", result.raw);
+ return result;
+ }
+ }
+ }
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::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.ApplyRelocationBatch(im.relocation_batch_offset, symbol_address);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation 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.ApplyRelocationBatch(im.relocation_batch_offset, symbol_address);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation batch %08X", result.raw);
+ return result;
+ }
+ }
+ }
+
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::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.ApplyRelocationBatch(im.relocation_batch_offset, unresolved_symbol, true);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation 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.ApplyRelocationBatch(im.relocation_batch_offset, unresolved_symbol, true);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation batch %08X", result.raw);
+ return result;
+ }
+ }
+ }
+
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::ApplyExitRelocations(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 relocation_addr = entry.relocation_batch_offset;
+ ExternalRelocationEntry relocation_entry;
+ Memory::ReadBlock(relocation_addr, &relocation_entry, sizeof(ExternalRelocationEntry));
+
+ 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 = ApplyRelocationBatch(relocation_addr, symbol_address);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying relocation batch %08X", result.raw);
+ return result;
+ }
+
+ return MakeResult<bool>(false);
+ }
+
+ return MakeResult<bool>(true);
+ });
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying exit relocation %08X", result.raw);
+ return result;
+ }
+ }
+ }
+ return RESULT_SUCCESS;
+}
+
+/**
+ * Verifies a string or a string table matching a predicted size (i.e. terminated by 0)
+ * if it is not empty. There can be many other nulls in the string table because
+ * they are composed by many sub strings. This function is to check whether the
+ * whole string (table) is terminated properly, despite that it is not actually one string.
+ * @param address the virtual address of the string (table)
+ * @param size the size of the string (table), including the terminating 0
+ * @returns ResultCode RESULT_SUCCESS if the size matches, otherwise error code.
+ */
+static ResultCode VerifyStringTableLength(VAddr address, u32 size) {
+ if (size != 0) {
+ if (Memory::Read8(address + size - 1) != 0)
+ return CROFormatError(0x0B);
+ }
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::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 = VerifyStringTableLength(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;
+ }
+
+ 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 = VerifyStringTableLength(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 = ResetExternalRelocations();
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error resetting all external relocations %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 = VerifyStringTableLength(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 = ApplyInternalRelocations(prev_data_segment_address);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying internal relocations %08X", result.raw);
+ return result;
+ }
+
+ if (!is_crs) {
+ result = ApplyExitRelocations(crs_address);
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error applying exit relocations %08X", result.raw);
+ return result;
+ }
+ }
+
+ return RESULT_SUCCESS;
+}
+
+void CROHelper::Unrebase(bool is_crs) {
+ UnrebaseImportAnonymousSymbolTable();
+ UnrebaseImportIndexedSymbolTable();
+ UnrebaseImportNamedSymbolTable();
+ UnrebaseImportModuleTable();
+ UnrebaseExportNamedSymbolTable();
+
+ if (!is_crs)
+ UnrebaseSegmentTable();
+
+ SetNextModule(0);
+ SetPreviousModule(0);
+
+ SetField(FixedSize, 0);
+
+ UnrebaseHeader();
+}
+
+ResultCode CROHelper::VerifyHash(u32 cro_size, VAddr crr) const {
+ // TODO(wwylele): actually verify the hash
+ return RESULT_SUCCESS;
+}
+
+ResultCode CROHelper::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 relocation target is in .data segment, it will relocate 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 relocation 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;
+}
+
+ResultCode CROHelper::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;
+}
+
+ResultCode CROHelper::ClearRelocations() {
+ ResultCode result = ClearExternalRelocations();
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error clearing external relocations %08X", result.raw);
+ return result;
+ }
+
+ result = ClearInternalRelocations();
+ if (result.IsError()) {
+ LOG_ERROR(Service_LDR, "Error clearing internal relocations %08X", result.raw);
+ return result;
+ }
+ return RESULT_SUCCESS;
+}
+
+void CROHelper::InitCRS() {
+ SetNextModule(0);
+ SetPreviousModule(0);
+}
+
+void CROHelper::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);
+}
+
+void CROHelper::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);
+}
+
+u32 CROHelper::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;
+ }
+}
+
+u32 CROHelper::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 CROHelper::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;
+}
+
+std::tuple<VAddr, u32> CROHelper::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);
+}
+
+} // namespace
diff --git a/src/core/hle/service/ldr_ro/cro_helper.h b/src/core/hle/service/ldr_ro/cro_helper.h
new file mode 100644
index 000000000..34e357afd
--- /dev/null
+++ b/src/core/hle/service/ldr_ro/cro_helper.h
@@ -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
diff --git a/src/core/hle/service/ldr_ro/ldr_ro.cpp b/src/core/hle/service/ldr_ro/ldr_ro.cpp
new file mode 100644
index 000000000..8ba73ea8d
--- /dev/null
+++ b/src/core/hle/service/ldr_ro/ldr_ro.cpp
@@ -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
diff --git a/src/core/hle/service/ldr_ro.h b/src/core/hle/service/ldr_ro/ldr_ro.h
index 331637cde..331637cde 100644
--- a/src/core/hle/service/ldr_ro.h
+++ b/src/core/hle/service/ldr_ro/ldr_ro.h
diff --git a/src/core/hle/service/ldr_ro/memory_synchronizer.cpp b/src/core/hle/service/ldr_ro/memory_synchronizer.cpp
new file mode 100644
index 000000000..4402876e6
--- /dev/null
+++ b/src/core/hle/service/ldr_ro/memory_synchronizer.cpp
@@ -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
diff --git a/src/core/hle/service/ldr_ro/memory_synchronizer.h b/src/core/hle/service/ldr_ro/memory_synchronizer.h
new file mode 100644
index 000000000..92f267912
--- /dev/null
+++ b/src/core/hle/service/ldr_ro/memory_synchronizer.h
@@ -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
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index 395880843..5b8440b77 100644
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -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"
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 02:36:54 +0100