debugger: Add support for loading symbols from .map file (#1916)

Map has to have the same name as the debugger/*.xml files, but with a .map extension

src/Cafe/GraphicPack/GraphicPack2PatchesApply.cpp

@@ -420,7 +420,7 @@ void PatchEntryInstruction::undoPatch()
 	uint8* patchAddr = (uint8*)memory_base + addr;
 	memcpy(patchAddr, m_dataBackup, m_length);
 	PPCRecompiler_invalidateRange(addr, addr + m_length);
-	rplSymbolStorage_removeRange(addr, m_length);
+	rplSymbolStorage_removeRange(addr, m_length, RPL_STORED_SYMBOL_PATCH);
 	DebugSymbolStorage::ClearRange(addr, m_length);
 }
 
@@ -434,7 +434,7 @@ bool registerU32Variable(PatchContext_t& ctx, std::string& name, uint32 value, P
 	}
 	ctx.map_values[name] = value;
 	// keep track of address symbols for the debugger
-	rplSymbolStorage_store(ctx.graphicPack->GetName().data(), name.data(), value);
+	rplSymbolStorage_store(ctx.graphicPack->GetName().data(), name.data(), value, RPL_STORED_SYMBOL_PATCH);
 
 	return true;
 }

src/Cafe/OS/RPL/rpl.cpp

@@ -536,6 +536,10 @@ bool RPLLoader_LoadSections(sint32 aProcId, RPLModule* rplLoaderContext)
 	rplLoaderContext->regionSize_loaderInfo = regionLoaderinfoSize;
 	rplLoaderContext->regionSize_text = regionTextSize;
 
+	// set original base addresses
+	rplLoaderContext->regionOrigAddr_text = regionMappingTable.region[RPL_MAPPING_REGION_TEXT].baseAddress;
+	rplLoaderContext->regionOrigAddr_data = regionMappingTable.region[RPL_MAPPING_REGION_DATA].baseAddress;
+
 	// load data sections
 	for (sint32 i = 0; i < (sint32)rplLoaderContext->rplHeader.sectionTableEntryCount; i++)
 	{

src/Cafe/OS/RPL/rpl_structs.h

@@ -171,7 +171,9 @@ struct RPLModule
 	uint32 tlsStartAddress;
 	uint32 tlsEndAddress;
 	uint32 regionSize_text;
+	uint32 regionOrigAddr_text;
 	uint32 regionSize_data;
+	uint32 regionOrigAddr_data;
 	uint32 regionSize_loaderInfo;
 
 	uint32 patchCRC; // Cemuhook style module crc for patches.txt

src/Cafe/OS/RPL/rpl_symbol_storage.cpp

@@ -63,7 +63,7 @@ char* rplSymbolStorage_storeLibname(const char* libName)
 	return libEntry->libName;
 }
 
-RPLStoredSymbol* rplSymbolStorage_store(const char* libName, const char* symbolName, MPTR address)
+RPLStoredSymbol* rplSymbolStorage_store(const char* libName, const char* symbolName, MPTR address, uint32 type)
 {
 	std::unique_lock<std::mutex> lck(rplSymbolStorage.m_symbolStorageMutex);
 	char* libNameStorage = rplSymbolStorage_storeLibname(libName);
@@ -72,7 +72,11 @@ RPLStoredSymbol* rplSymbolStorage_store(const char* libName, const char* symbolN
 	storedSymbol->address = address;
 	storedSymbol->libName = libNameStorage;
 	storedSymbol->symbolName = symbolNameStorage;
-	storedSymbol->flags = 0;
+	storedSymbol->flags = type;
+	storedSymbol->previous = nullptr;
+	auto it = rplSymbolStorage.map_symbolByAddress.find(address);
+	if (it != rplSymbolStorage.map_symbolByAddress.end())
+		storedSymbol->previous = it->second;
 	rplSymbolStorage.map_symbolByAddress[address] = storedSymbol;
 	return storedSymbol;
 }
@@ -80,7 +84,10 @@ RPLStoredSymbol* rplSymbolStorage_store(const char* libName, const char* symbolN
 RPLStoredSymbol* rplSymbolStorage_getByAddress(MPTR address)
 {
 	std::unique_lock<std::mutex> lck(rplSymbolStorage.m_symbolStorageMutex);
-	return rplSymbolStorage.map_symbolByAddress[address];
+	auto it = rplSymbolStorage.map_symbolByAddress.find(address);
+	if (it == rplSymbolStorage.map_symbolByAddress.end())
+		return nullptr;
+	return it->second;
 }
 
 RPLStoredSymbol* rplSymbolStorage_getByClosestAddress(MPTR address)
@@ -89,7 +96,8 @@ RPLStoredSymbol* rplSymbolStorage_getByClosestAddress(MPTR address)
     std::unique_lock<std::mutex> lck(rplSymbolStorage.m_symbolStorageMutex);
     for(uint32 i=0; i<4096; i++)
     {
-        RPLStoredSymbol* symbol = rplSymbolStorage.map_symbolByAddress[address];
+		auto it = rplSymbolStorage.map_symbolByAddress.find(address);
+		RPLStoredSymbol* symbol = (it == rplSymbolStorage.map_symbolByAddress.end()) ? nullptr : it->second;
         if(symbol)
             return symbol;
         address -= 4;
@@ -100,18 +108,63 @@ RPLStoredSymbol* rplSymbolStorage_getByClosestAddress(MPTR address)
 void rplSymbolStorage_remove(RPLStoredSymbol* storedSymbol)
 {
 	std::unique_lock<std::mutex> lck(rplSymbolStorage.m_symbolStorageMutex);
-	if (rplSymbolStorage.map_symbolByAddress[storedSymbol->address] == storedSymbol)
-		rplSymbolStorage.map_symbolByAddress[storedSymbol->address] = nullptr;
+	auto it = rplSymbolStorage.map_symbolByAddress.find(storedSymbol->address);
+	if (it != rplSymbolStorage.map_symbolByAddress.end())
+	{
+		if (it->second == storedSymbol)
+		{
+			if (storedSymbol->previous)
+				it->second = storedSymbol->previous;
+			else
+				rplSymbolStorage.map_symbolByAddress.erase(it);
+		}
+		else
+		{
+			RPLStoredSymbol* parentSymbol = it->second;
+			while (parentSymbol && parentSymbol->previous != storedSymbol)
+				parentSymbol = parentSymbol->previous;
+			if (parentSymbol)
+				parentSymbol->previous = storedSymbol->previous;
+		}
+	}
 	delete storedSymbol;
 }
 
-void rplSymbolStorage_removeRange(MPTR address, sint32 length)
+
+void rplSymbolStorage_removeRange(MPTR address, sint32 length, uint32 type)
 {
+	std::unique_lock<std::mutex> lck(rplSymbolStorage.m_symbolStorageMutex);
 	while (length > 0)
 	{
-		RPLStoredSymbol* symbol = rplSymbolStorage_getByAddress(address);
-		if (symbol)
-			rplSymbolStorage_remove(symbol);
+		auto it = rplSymbolStorage.map_symbolByAddress.find(address);
+		if (it != rplSymbolStorage.map_symbolByAddress.end())
+		{
+			RPLStoredSymbol* current = it->second;
+			RPLStoredSymbol* newHead = current;
+			RPLStoredSymbol* previousKept = nullptr;
+			while (current)
+			{
+				RPLStoredSymbol* next = current->previous;
+				if ((current->flags & type) == type)
+				{
+					if (previousKept)
+						previousKept->previous = next;
+					else
+						newHead = next;
+					delete current;
+				}
+				else
+				{
+					previousKept = current;
+				}
+				current = next;
+			}
+
+			if (newHead)
+				it->second = newHead;
+			else
+				rplSymbolStorage.map_symbolByAddress.erase(it);
+		}
 		address += 4;
 		length -= 4;
 	}
@@ -145,7 +198,15 @@ void rplSymbolStorage_unloadAll()
 {
 	// free symbols
 	for (auto& it : rplSymbolStorage.map_symbolByAddress)
-		delete it.second;
+	{
+		RPLStoredSymbol* symbol = it.second;
+		while (symbol)
+		{
+			RPLStoredSymbol* previous = symbol->previous;
+			delete symbol;
+			symbol = previous;
+		}
+	}
 	rplSymbolStorage.map_symbolByAddress.clear();
 	// free libs
 	rplSymbolLib_t* lib = rplSymbolStorage.libs;

src/Cafe/OS/RPL/rpl_symbol_storage.h

@@ -1,19 +1,27 @@
+enum RPLStoredSymbolType : uint32
+{
+	RPL_STORED_SYMBOL_NONE = 0,
+	RPL_STORED_SYMBOL_MAP = 1 << 0,
+	RPL_STORED_SYMBOL_PATCH = 1 << 1,
+};
+
 struct RPLStoredSymbol
 {
 	MPTR address;
 	void* libName;
 	void* symbolName;
 	uint32 flags;
+	RPLStoredSymbol* previous;
 };
 
 void rplSymbolStorage_init();
 void rplSymbolStorage_unloadAll();
-RPLStoredSymbol* rplSymbolStorage_store(const char* libName, const char* symbolName, MPTR address);
+RPLStoredSymbol* rplSymbolStorage_store(const char* libName, const char* symbolName, MPTR address, uint32 type = RPL_STORED_SYMBOL_NONE);
 void rplSymbolStorage_remove(RPLStoredSymbol* storedSymbol);
-void rplSymbolStorage_removeRange(MPTR address, sint32 length);
+void rplSymbolStorage_removeRange(MPTR address, sint32 length, uint32 type = RPL_STORED_SYMBOL_NONE);
 RPLStoredSymbol* rplSymbolStorage_getByAddress(MPTR address);
 RPLStoredSymbol* rplSymbolStorage_getByClosestAddress(MPTR address);
 void rplSymbolStorage_createJumpProxySymbol(MPTR jumpAddress, MPTR destAddress);
 
 std::unordered_map<uint32, RPLStoredSymbol*>& rplSymbolStorage_lockSymbolMap();
-void rplSymbolStorage_unlockSymbolMap();
+void rplSymbolStorage_unlockSymbolMap();

src/gui/wxgui/debugger/DebuggerWindow2.cpp

@@ -3,11 +3,12 @@
 
 #include "wxHelper.h"
 
-#include <filesystem>
-
+#include "Common/FileStream.h"
 #include "config/ActiveSettings.h"
+#include "Cafe/HW/MMU/MMU.h"
 #include "Cafe/OS/RPL/rpl_structs.h"
 #include "Cafe/OS/RPL/rpl_debug_symbols.h"
+#include "Cafe/OS/RPL/rpl_symbol_storage.h"
 
 #include "wxgui/debugger/RegisterWindow.h"
 #include "wxgui/debugger/DumpWindow.h"
@@ -20,6 +21,7 @@
 #include "wxgui/debugger/BreakpointWindow.h"
 #include "wxgui/debugger/ModuleWindow.h"
 #include "util/helpers/helpers.h"
+#include "util/helpers/StringHelpers.h"
 #include "Cafe/HW/Espresso/Recompiler/PPCRecompiler.h"
 #include "Cemu/Logging/CemuLogging.h"
 
@@ -84,10 +86,11 @@ DebuggerModuleInfo::DebuggerModuleInfo(RPLModule* module)
 	moduleName = module->moduleName2;
 	patchCRC = module->patchCRC;
 	textArea.base = module->regionMappingBase_text.GetMPTR();
+	textArea.origBase = module->regionOrigAddr_text;
 	textArea.size = module->regionSize_text;
 	dataArea.base = module->regionMappingBase_data;
+	dataArea.origBase = module->regionOrigAddr_data;
 	dataArea.size = module->regionSize_data;
-
 }
 
 struct DebuggerModuleInfoNotify : public wxClientData
@@ -99,6 +102,65 @@ struct DebuggerModuleInfoNotify : public wxClientData
 
 DebuggerWindow2* s_debuggerWindow;
 
+static bool TryParseMapAddress(std::string_view token, uint32& value)
+{
+	trim(token, "\t\n\v\f\r ,:;()[]");
+	if (const auto colonIndex = token.find_last_of(':'); colonIndex != std::string_view::npos)
+		token = token.substr(colonIndex + 1);
+	trim(token, "\t\n\v\f\r ,:;()[]");
+	if (!token.empty() && (token.back() == 'h' || token.back() == 'H'))
+		token.remove_suffix(1);
+	if (token.size() > 2 && token[0] == '0' && (token[1] == 'x' || token[1] == 'X'))
+		token.remove_prefix(2);
+	if (token.empty())
+		return false;
+
+	uint64 parsedValue = 0;
+	const auto result = std::from_chars(token.data(), token.data() + token.size(), parsedValue, 16);
+	if (result.ec != std::errc() || result.ptr != (token.data() + token.size()) || parsedValue > std::numeric_limits<uint32>::max())
+		return false;
+
+	value = static_cast<uint32>(parsedValue);
+	return true;
+}
+
+static bool TryParseMapSymbolLine(std::string_view rawLine, uint32& address, std::string& symbolName)
+{
+	auto line = rawLine;
+	trim(line);
+	if (line.empty())
+		return false;
+
+	const auto addressEnd = line.find_first_of(" \t");
+	if (addressEnd == std::string_view::npos)
+		return false;
+	if (!TryParseMapAddress(line.substr(0, addressEnd), address))
+		return false;
+
+	line = line.substr(addressEnd + 1);
+	trim(line);
+	if (line.empty())
+		return false;
+
+	const auto symbolEnd = line.find_first_of(" \t");
+	auto symbolToken = symbolEnd == std::string_view::npos ? line : line.substr(0, symbolEnd);
+	trim(symbolToken);
+	if (symbolToken.empty())
+		return false;
+
+	symbolName.assign(symbolToken);
+	return true;
+}
+
+static std::optional<MPTR> GetRelocatedMapAddress(const DebuggerModuleInfo& moduleInfo, uint32 mapAddress)
+{
+	if (moduleInfo.textArea.ContainsOriginalAddress(mapAddress))
+		return moduleInfo.textArea.base + (mapAddress - moduleInfo.textArea.origBase);
+	if (moduleInfo.dataArea.ContainsOriginalAddress(mapAddress))
+		return moduleInfo.dataArea.base + (mapAddress - moduleInfo.dataArea.origBase);
+	return std::nullopt;
+}
+
 void DebuggerConfig::Load(XMLConfigParser& parser)
 {
 	pin_to_main = parser.get("PinToMainWindow", true);
@@ -282,26 +344,79 @@ void DebuggerWindow2::LoadModuleStorage(const DebuggerModuleInfo& moduleInfo)
 	bool already_loaded = std::any_of(m_modulesStorage.begin(), m_modulesStorage.end(), [path](const std::unique_ptr<XMLDebuggerModuleConfig>& debug) { return debug->GetFilename() == path; });
 	if (!path.empty() && !already_loaded)
 	{
-		m_modulesStorage.emplace_back(new XMLDebuggerModuleConfig(path, { moduleInfo, false }))->Load();
+		auto& moduleStorage = m_modulesStorage.emplace_back(new XMLDebuggerModuleConfig(path, { moduleInfo, false }));
+		moduleStorage->Load();
+		LoadModuleMap(moduleStorage->data());
 	}
 }
 
 void DebuggerWindow2::SaveModuleStorage(const DebuggerModuleInfo& moduleInfo, bool deleteModuleStorage)
 {
 	auto path = GetModuleStoragePath(moduleInfo.moduleName, moduleInfo.patchCRC);
-	for (auto& moduleStorage : m_modulesStorage)
+	for (auto it = m_modulesStorage.begin(); it != m_modulesStorage.end(); ++it)
 	{
+		auto& moduleStorage = *it;
 		if (moduleStorage->data().moduleInfo.moduleName == moduleInfo.moduleName && moduleStorage->data().moduleInfo.patchCRC == moduleInfo.patchCRC)
 		{
 			moduleStorage->data().delete_breakpoints_after_saving = deleteModuleStorage; // make sure breakpoints are deleted when the storage is removed
 			moduleStorage->Save(path);
 			if (deleteModuleStorage)
-				m_modulesStorage.erase(std::find(m_modulesStorage.begin(), m_modulesStorage.end(), moduleStorage));
-			break;
+			{
+				UnloadModuleMap(moduleStorage->data());
+				m_modulesStorage.erase(it);
+			}
+			return;
 		}
 	}
 }
 
+void DebuggerWindow2::LoadModuleMap(DebuggerModuleStorage& moduleStorage)
+{
+	UnloadModuleMap(moduleStorage);
+
+	const auto mapPath = GetModuleMapPath(moduleStorage.moduleInfo.moduleName, moduleStorage.moduleInfo.patchCRC);
+	if (mapPath.empty())
+		return;
+
+	std::unique_ptr<FileStream> fileStream(FileStream::openFile(mapPath.c_str()));
+	if (!fileStream)
+		return;
+
+	const auto fileSize = fileStream->GetSize();
+	if (fileSize == 0 || fileSize > std::numeric_limits<uint32>::max())
+		return;
+
+	const auto readSize = static_cast<uint32>(fileSize);
+	std::vector<char> fileData(readSize);
+	if (fileStream->readData(fileData.data(), readSize) != readSize)
+		return;
+
+	std::string_view fileView(fileData.data(), fileData.size());
+	for (const auto& line : StringHelpers::StringLineIterator(fileView))
+	{
+		uint32 mapAddress = 0;
+		std::string symbolName;
+		if (TryParseMapSymbolLine(line, mapAddress, symbolName))
+		{
+			const auto relocatedAddress = GetRelocatedMapAddress(moduleStorage.moduleInfo, mapAddress);
+			if (relocatedAddress)
+			{
+				moduleStorage.loaded_map_symbols.emplace_back(rplSymbolStorage_store(moduleStorage.moduleInfo.moduleName.c_str(), symbolName.c_str(), *relocatedAddress, RPL_STORED_SYMBOL_MAP));
+			}
+		}
+	}
+}
+
+void DebuggerWindow2::UnloadModuleMap(DebuggerModuleStorage& moduleStorage)
+{
+	for (auto* symbol : moduleStorage.loaded_map_symbols)
+	{
+		if (symbol)
+			rplSymbolStorage_remove(symbol);
+	}
+	moduleStorage.loaded_map_symbols.clear();
+}
+
 DebuggerWindow2::DebuggerWindow2(wxFrame& parent, const wxRect& display_size)
 	: wxFrame(&parent, wxID_ANY, _("PPC Debugger"), wxDefaultPosition, wxSize(1280, 300), wxMINIMIZE_BOX | wxMAXIMIZE_BOX | wxSYSTEM_MENU | wxCAPTION | wxCLOSE_BOX | wxCLIP_CHILDREN | wxRESIZE_BORDER | wxFRAME_FLOAT_ON_PARENT),
 		m_module_address(0)
@@ -537,6 +652,12 @@ std::wstring DebuggerWindow2::GetModuleStoragePath(std::string module_name, uint
 	return ActiveSettings::GetConfigPath("debugger/{}_{:#10x}.xml", module_name, crc_hash).generic_wstring();
 }
 
+std::wstring DebuggerWindow2::GetModuleMapPath(std::string module_name, uint32_t crc_hash) const
+{
+	if (module_name.empty() || crc_hash == 0) return {};
+	return ActiveSettings::GetConfigPath("debugger/{}_{:#10x}.map", module_name, crc_hash).generic_wstring();
+}
+
 void DebuggerWindow2::OnBreakpointHit(wxCommandEvent& event)
 {
 	PPCInterpreter_t* hCPU = debugger_lockDebugSession();

src/gui/wxgui/debugger/DebuggerWindow2.h

@@ -16,6 +16,7 @@ class DumpWindow;
 class ModuleWindow;
 class SymbolWindow;
 class wxStaticText;
+struct RPLStoredSymbol;
 
 wxDECLARE_EVENT(wxEVT_UPDATE_VIEW, wxCommandEvent);
 wxDECLARE_EVENT(wxEVT_BREAKPOINT_HIT, wxCommandEvent);
@@ -54,12 +55,18 @@ struct DebuggerModuleInfo
 	struct ModuleArea
 	{
 		MPTR base;
+		MPTR origBase;
 		uint32 size;
 
-		bool ContainsAddress(MPTR addr)
+		bool ContainsAddress(MPTR addr) const
 		{
 			return addr >= base && (addr < (base+size));
 		}
+
+		bool ContainsOriginalAddress(MPTR addr) const
+		{
+			return addr >= origBase && (addr < (origBase + size));
+		}
 	};
 
 	std::string moduleName;
@@ -74,6 +81,7 @@ struct DebuggerModuleStorage
 {
 	DebuggerModuleInfo moduleInfo;
 	bool delete_breakpoints_after_saving;
+	std::vector<RPLStoredSymbol*> loaded_map_symbols;
 
 	void Load(XMLConfigParser& parser);
 	void Save(XMLConfigParser& parser);
@@ -126,6 +134,9 @@ private:
 
 	void CreateMenuBar();
 	void UpdateModuleLabel(uint32 address = 0);
+	void LoadModuleMap(DebuggerModuleStorage& moduleStorage);
+	void UnloadModuleMap(DebuggerModuleStorage& moduleStorage);
+	std::wstring GetModuleMapPath(std::string module_name, uint32_t crc_hash) const;
 
 	void UpdateViewThreadsafe() override;
 	void NotifyDebugBreakpointHit() override;

src/gui/wxgui/debugger/DisasmCtrl.cpp

@@ -14,6 +14,8 @@
 #include "Cemu/ExpressionParser/ExpressionParser.h"
 #include "Cafe/HW/Espresso/Debugger/DebugSymbolStorage.h"
 
+#include <wx/clipbrd.h>
+
 wxDEFINE_EVENT(wxEVT_DISASMCTRL_NOTIFY_GOTO_ADDRESS, wxCommandEvent);
 
 #define MAX_SYMBOL_LEN			(120)
@@ -699,20 +701,11 @@ void DisasmCtrl::OnMouseDClick(const wxPoint& position, uint32 line)
 
 void DisasmCtrl::CopyToClipboard(std::string text)
 {
-#if BOOST_OS_WINDOWS
-	if (OpenClipboard(nullptr))
+	if (wxClipboard::Get()->Open())
 	{
-		EmptyClipboard();
-		const HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE, text.size() + 1);
-		if (hGlobal)
-		{
-			memcpy(GlobalLock(hGlobal), text.c_str(), text.size() + 1);
-			GlobalUnlock(hGlobal);
-			SetClipboardData(CF_TEXT, hGlobal);
-		}
-		CloseClipboard();
+		wxClipboard::Get()->SetData(new wxTextDataObject(text));
+		wxClipboard::Get()->Close();
 	}
-#endif
 }
 
 static uint32 GetUnrelocatedAddress(MPTR address)

src/gui/wxgui/debugger/SymbolCtrl.cpp

@@ -2,6 +2,7 @@
 #include "Cafe/OS/RPL/rpl_symbol_storage.h"
 #include "Cafe/HW/Espresso/Debugger/Debugger.h"
 #include <wx/listctrl.h>
+#include <wx/clipbrd.h>
 
 enum ItemColumns
 {
@@ -38,13 +39,12 @@ SymbolListCtrl::SymbolListCtrl(wxWindow* parent, const wxWindowID& id, const wxP
 	m_list_filter.Clear();
 
 	OnGameLoaded();
-
-	SetItemCount(m_data.size());
 }
 
 void SymbolListCtrl::OnGameLoaded()
 {
 	m_data.clear();
+	m_visible_items.clear();
 	const auto symbol_map = rplSymbolStorage_lockSymbolMap();
 	for (auto const& [address, symbol_info] : symbol_map)
 	{
@@ -56,48 +56,30 @@ void SymbolListCtrl::OnGameLoaded()
 		wxString searchNameWX = libNameWX + symbolNameWX;
 		searchNameWX.MakeLower();
 
-		auto new_entry = m_data.try_emplace(
-			symbol_info->address,
-            symbolNameWX,
+		m_data.try_emplace(
+			address,
+			symbolNameWX,
 			libNameWX,
-            searchNameWX,
-			false
+			searchNameWX
 		);
-
-		if (m_list_filter.IsEmpty())
-			new_entry.first->second.visible = true;
-		else if (new_entry.first->second.searchName.Contains(m_list_filter))
-			new_entry.first->second.visible = true;
 	}
 	rplSymbolStorage_unlockSymbolMap();
 
-	SetItemCount(m_data.size());
-	if (m_data.size() > 0)
-		RefreshItems(GetTopItem(), std::min<long>(m_data.size() - 1, GetTopItem() + GetCountPerPage() + 1));
+	RebuildVisibleItems();
 }
 
 wxString SymbolListCtrl::OnGetItemText(long item, long column) const
 {
-	if (item >= GetItemCount())
+	if (item < 0 || item >= static_cast<long>(m_visible_items.size()))
 		return wxEmptyString;
 
-	long visible_idx = 0;
-	for (const auto& [address, symbol] : m_data)
-	{
-		if (!symbol.visible)
-			continue;
-
-		if (item == visible_idx)
-		{
-			if (column == ColumnName)
-				return wxString(symbol.name);
-			if (column == ColumnAddress)
-				return wxString::Format("%08x", address);
-			if (column == ColumnModule)
-				return wxString(symbol.libName);
-		}
-		visible_idx++;
-	}
+	const auto& [address, symbol] = *m_visible_items[item];
+	if (column == ColumnName)
+		return symbol.name;
+	if (column == ColumnAddress)
+		return wxString::Format("%08x", address);
+	if (column == ColumnModule)
+		return symbol.libName;
 
 	return wxEmptyString;
 }
@@ -106,10 +88,9 @@ wxString SymbolListCtrl::OnGetItemText(long item, long column) const
 void SymbolListCtrl::OnLeftDClick(wxListEvent& event)
 {
 	long selected = GetFirstSelected();
-	if (selected == wxNOT_FOUND)
+	if (selected == wxNOT_FOUND || selected >= static_cast<long>(m_visible_items.size()))
 		return;
-	const auto text = GetItemText(selected, ColumnAddress);
-	const auto address = std::stoul(text.ToStdString(), nullptr, 16);
+	const auto address = m_visible_items[selected]->first;
 	if (address == 0)
 		return;
 	debugger_jumpToAddressInDisasm(address);
@@ -118,46 +99,40 @@ void SymbolListCtrl::OnLeftDClick(wxListEvent& event)
 void SymbolListCtrl::OnRightClick(wxListEvent& event)
 {
 	long selected = GetFirstSelected();
-	if (selected == wxNOT_FOUND)
+	if (selected == wxNOT_FOUND || selected >= static_cast<long>(m_visible_items.size()))
 		return;
-	auto text = GetItemText(selected, ColumnAddress);
-	text = "0x" + text;
-#if BOOST_OS_WINDOWS
-	if (OpenClipboard(nullptr))
+	if (wxClipboard::Get()->Open())
 	{
-		EmptyClipboard();
-		const HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE, text.size()+1);
-		if (hGlobal)
-		{
-			memcpy(GlobalLock(hGlobal), text.c_str(), text.size() + 1);
-			GlobalUnlock(hGlobal);
-
-			SetClipboardData(CF_TEXT, hGlobal);
-			GlobalFree(hGlobal);
-		}
-		CloseClipboard();
+		wxClipboard::Get()->SetData(new wxTextDataObject(wxString::Format("0x%08x", m_visible_items[selected]->first)));
+		wxClipboard::Get()->Close();
 	}
-#endif
+}
+
+void SymbolListCtrl::RebuildVisibleItems()
+{
+	m_visible_items.clear();
+	m_visible_items.reserve(m_data.size());
+	const bool has_filter = !m_list_filter.IsEmpty();
+	for (auto it = m_data.cbegin(); it != m_data.cend(); ++it)
+	{
+		if (has_filter && !it->second.searchName.Contains(m_list_filter))
+			continue;
+
+		m_visible_items.emplace_back(it);
+	}
+
+	SetItemCount(static_cast<long>(m_visible_items.size()));
+	if (!m_visible_items.empty())
+	{
+		const auto top_item = std::min<long>(GetTopItem(), static_cast<long>(m_visible_items.size() - 1));
+		RefreshItems(top_item, std::min<long>(static_cast<long>(m_visible_items.size() - 1), top_item + GetCountPerPage() + 1));
+	}
+	else
+		Refresh();
 }
 
 void SymbolListCtrl::ChangeListFilter(wxString filter)
 {
 	m_list_filter = filter.MakeLower();
-
-	size_t visible_entries = m_data.size();
-	for (auto& [address, symbol] : m_data)
-	{
-		if (m_list_filter.IsEmpty())
-			symbol.visible = true;
-		else if (symbol.searchName.Contains(m_list_filter))
-			symbol.visible = true;
-		else
-		{
-			visible_entries--;
-			symbol.visible = false;
-		}
-	}
-	SetItemCount(visible_entries);
-	if (visible_entries > 0)
-		RefreshItems(GetTopItem(), std::min<long>(visible_entries - 1, GetTopItem() + GetCountPerPage() + 1));
+	RebuildVisibleItems();
 }

src/gui/wxgui/debugger/SymbolCtrl.h

@@ -10,22 +10,23 @@ public:
 
 	void ChangeListFilter(wxString filter);
 
-  private:
+private:
 	struct SymbolItem {
-        SymbolItem() = default;
-        SymbolItem(wxString name, wxString libName, wxString searchName, bool visible) : name(name), libName(libName), searchName(searchName), visible(visible) {}
-
+		SymbolItem() = default;
+		SymbolItem(const wxString& name, const wxString& libName, const wxString& searchName) : name(name), libName(libName), searchName(searchName) {}
 
 		wxString name;
 		wxString libName;
 		wxString searchName;
-		bool visible;
 	};
+	using SymbolMap = std::map<MPTR, SymbolItem>;
 
-	std::map<MPTR, SymbolItem> m_data;
+	SymbolMap m_data;
 	wxString m_list_filter;
+	std::vector<SymbolMap::const_iterator> m_visible_items;
 
-	wxString OnGetItemText(long item, long column) const;
+	wxString OnGetItemText(long item, long column) const override;
+	void RebuildVisibleItems();
 	void OnLeftDClick(wxListEvent& event);
 	void OnRightClick(wxListEvent& event);
 };