1 /***************************************************************************
2 * Copyright (C) 2005-08 by the Quassel IRC Team *
3 * devel@quassel-irc.org *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
29 #include <QTextStream>
31 void loadHelpStackFrame(IMAGEHLP_STACK_FRAME &ihsf, const STACKFRAME64 &stackFrame) {
32 ZeroMemory(&ihsf, sizeof(IMAGEHLP_STACK_FRAME));
33 ihsf.InstructionOffset = stackFrame.AddrPC.Offset;
34 ihsf.FrameOffset = stackFrame.AddrFrame.Offset;
37 BOOL CALLBACK EnumSymbolsCB(PSYMBOL_INFO symInfo, ULONG size, PVOID user) {
38 QStringList *params = (QStringList *)user;
39 if(symInfo->Flags & SYMFLAG_PARAMETER) {
40 params->append(symInfo->Name);
46 struct EnumModulesContext {
49 EnumModulesContext(HANDLE hProcess, QTextStream &stream) : hProcess(hProcess), stream(stream) {}
52 BOOL CALLBACK EnumModulesCB(PCTSTR ModuleName, DWORD64 BaseOfDll, PVOID UserContext) {
53 IMAGEHLP_MODULE64 mod;
54 EnumModulesContext *context = (EnumModulesContext *)UserContext;
55 mod.SizeOfStruct = sizeof(IMAGEHLP_MODULE64);
56 if(SymGetModuleInfo64(context->hProcess, BaseOfDll, &mod)) {
57 QString line = QString("%1 0x%2 Image: %3").arg(mod.ModuleName, -14)
58 .arg(BaseOfDll, 8, 16, QLatin1Char('0'))
59 .arg(mod.LoadedImageName);
60 // qDebug() << qPrintable(line);
61 context->stream << line << '\n';
63 QString pdbName(mod.LoadedPdbName);
64 if(!pdbName.isEmpty()) {
65 QString line2 = QString("%1 %2").arg("", 32).arg(pdbName);
66 // qDebug() << qPrintable(line2);
67 context->stream << line2 << '\n';
73 // we don't use the ModuleName anyways so we can easily "convert" this
74 inline BOOL CALLBACK EnumModulesCB(PSTR ModuleName, DWORD64 BaseOfDll, PVOID UserContext) {
75 return EnumModulesCB(PCTSTR(0), BaseOfDll, UserContext);
79 // Disable global optimization and ignore /GS waning caused by
81 #pragma optimize("g", off)
83 #pragma warning(disable : 4748)
85 void Quassel::logBacktrace(const QString &filename) {
88 STACKFRAME64 StackFrame;
91 ZeroMemory(&Context, sizeof(CONTEXT));
92 Context.ContextFlags = CONTEXT_CONTROL;
95 mov [Context.Ebp], ebp;
96 mov [Context.Esp], esp;
98 mov [Context.Eip], eax;
101 RtlCaptureContext(&Context);
104 ZeroMemory(&StackFrame, sizeof(STACKFRAME64));
106 MachineType = IMAGE_FILE_MACHINE_I386;
107 StackFrame.AddrPC.Offset = Context.Eip;
108 StackFrame.AddrPC.Mode = AddrModeFlat;
109 StackFrame.AddrFrame.Offset = Context.Ebp;
110 StackFrame.AddrFrame.Mode = AddrModeFlat;
111 StackFrame.AddrStack.Offset = Context.Esp;
112 StackFrame.AddrStack.Mode = AddrModeFlat;
114 MachineType = IMAGE_FILE_MACHINE_AMD64;
115 StackFrame.AddrPC.Offset = Context.Rip;
116 StackFrame.AddrPC.Mode = AddrModeFlat;
117 StackFrame.AddrFrame.Offset = Context.Rsp;
118 StackFrame.AddrFrame.Mode = AddrModeFlat;
119 StackFrame.AddrStack.Offset = Context.Rsp;
120 StackFrame.AddrStack.Mode = AddrModeFlat;
122 MachineType = IMAGE_FILE_MACHINE_IA64;
123 StackFrame.AddrPC.Offset = Context.StIIP;
124 StackFrame.AddrPC.Mode = AddrModeFlat;
125 StackFrame.AddrFrame.Offset = Context.IntSp;
126 StackFrame.AddrFrame.Mode = AddrModeFlat;
127 StackFrame.AddrBStore.Offset= Context.RsBSP;
128 StackFrame.AddrBStore.Mode = AddrModeFlat;
129 StackFrame.AddrStack.Offset = Context.IntSp;
130 StackFrame.AddrStack.Mode = AddrModeFlat;
132 #error "Unsupported platform"
135 //EnterCriticalSection(&DbgHelpLock);
137 QFile logFile(filename);
138 logFile.open(QIODevice::Append);
139 QTextStream logStream(&logFile);
141 HANDLE hProcess = GetCurrentProcess();
142 HANDLE hThread = GetCurrentThread();
143 SymInitialize(hProcess, NULL, TRUE);
145 DWORD64 dwDisplacement;
147 ULONG64 buffer[(sizeof(SYMBOL_INFO) +
148 MAX_SYM_NAME*sizeof(TCHAR) +
149 sizeof(ULONG64) - 1) / sizeof(ULONG64)];
150 PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)buffer;
151 pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
152 pSymbol->MaxNameLen = MAX_SYM_NAME;
154 IMAGEHLP_MODULE64 mod;
155 mod.SizeOfStruct = sizeof(IMAGEHLP_MODULE64);
157 IMAGEHLP_STACK_FRAME ihsf;
158 ZeroMemory(&ihsf, sizeof(IMAGEHLP_STACK_FRAME));
161 while(StackWalk64(MachineType, hProcess, hThread, &StackFrame, &Context, NULL, NULL, NULL, NULL)) {
165 loadHelpStackFrame(ihsf, StackFrame);
166 if(StackFrame.AddrPC.Offset != 0) { // Valid frame.
168 QString fileName("???");
169 if(SymGetModuleInfo64(hProcess, ihsf.InstructionOffset, &mod)) {
170 fileName = QString(mod.ImageName);
171 int slashPos = fileName.lastIndexOf('\\');
173 fileName = fileName.mid(slashPos + 1);
176 if(SymFromAddr(hProcess, ihsf.InstructionOffset, &dwDisplacement, pSymbol)) {
177 funcName = QString(pSymbol->Name);
179 funcName = QString("0x%1").arg(ihsf.InstructionOffset, 8, 16, QLatin1Char('0'));
182 SymSetContext(hProcess, &ihsf, NULL);
183 SymEnumSymbols(hProcess, 0, NULL, EnumSymbolsCB, (PVOID)¶ms);
185 QString debugLine = QString("#%1 %2 0x%3 %4(%5)").arg(i, 3, 10)
187 .arg(ihsf.InstructionOffset, 8, 16, QLatin1Char('0'))
189 .arg(params.join(", "));
190 // qDebug() << qPrintable(debugLine);
191 logStream << debugLine << '\n';
194 break; // we're at the end.
198 // qDebug() << "List of linked Modules:";
199 logStream << "\n\nList of linked Modules:\n";
200 EnumModulesContext modulesContext(hProcess, logStream);
201 SymEnumerateModules64(hProcess, EnumModulesCB, (PVOID)&modulesContext);
207 #pragma optimize("g", on)