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Initial revision of the cdbdebugger playground.

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This commit is contained in:
Banana Joe
2009-02-09 10:55:46 +01:00
parent 6672f89ff5
commit d0865ed2a2
13 changed files with 1299 additions and 0 deletions
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20
tests/manual/cdbdebugger/cdbdebugger.pro Normal file
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TEMPLATE = app
TARGET =
DEPENDPATH += .
INCLUDEPATH += .
DEFINES +=
LIBS += Dbghelp.lib dbgeng.lib
HEADERS += mainwindow.h \
debugger.h \
outputcallback.h \
windbgeventcallback.h \
windbgthread.h
FORMS += mainwindow.ui
SOURCES += main.cpp mainwindow.cpp \
debugger.cpp \
outputcallback.cpp \
windbgeventcallback.cpp \
windbgthread.cpp

305
tests/manual/cdbdebugger/debugger.cpp Normal file
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#include "debugger.h"
#include "windbgthread.h"
#include "outputcallback.h"
#include "windbgeventcallback.h"
#include <QFileInfo>
#include <QTimerEvent>
#include <QDebug>
Debugger::Debugger(QObject* parent)
: QObject(parent),
m_callbackEvent(this),
m_watchTimer(-1),
m_hDebuggeeProcess(0)
{
HRESULT hr;
hr = DebugCreate( __uuidof(IDebugClient5), reinterpret_cast<void**>(&m_pDebugClient));
if (FAILED(hr)) m_pDebugClient = 0;
hr = DebugCreate( __uuidof(IDebugControl4), reinterpret_cast<void**>(&m_pDebugControl));
if (FAILED(hr)) m_pDebugControl = 0;
hr = DebugCreate( __uuidof(IDebugSystemObjects4), reinterpret_cast<void**>(&m_pDebugSystemObjects));
if (FAILED(hr)) m_pDebugSystemObjects = 0;
hr = DebugCreate( __uuidof(IDebugSymbols3), reinterpret_cast<void**>(&m_pDebugSymbols));
if (FAILED(hr)) m_pDebugSymbols = 0;
hr = DebugCreate( __uuidof(IDebugRegisters2), reinterpret_cast<void**>(&m_pDebugRegisters));
if (FAILED(hr)) m_pDebugRegisters = 0;
m_pDebugClient->SetOutputCallbacks(&g_outputCallbacks);
m_pDebugClient->SetEventCallbacks(&m_callbackEvent);
}
Debugger::~Debugger()
{
killTimer(m_watchTimer);
if (m_pDebugClient)
m_pDebugClient->Release();
if (m_pDebugControl)
m_pDebugControl->Release();
if (m_pDebugSystemObjects)
m_pDebugSystemObjects->Release();
if (m_pDebugSymbols)
m_pDebugSymbols->Release();
if (m_pDebugRegisters)
m_pDebugRegisters->Release();
}
void Debugger::timerEvent(QTimerEvent* te)
{
if (te->timerId() != m_watchTimer)
return;
HRESULT hr;
hr = m_pDebugControl->WaitForEvent(0, 1);
switch (hr) {
case S_OK:
//qDebug() << "S_OK";
//hr = m_pDebugControl->SetExecutionStatus(DEBUG_STATUS_BREAK);
killTimer(m_watchTimer);
m_watchTimer = -1;
handleDebugEvent();
break;
case S_FALSE:
//qDebug() << "S_FALSE";
break;
case E_PENDING:
qDebug() << "S_PENDING";
break;
case E_UNEXPECTED:
killTimer(m_watchTimer);
m_watchTimer = -1;
break;
case E_FAIL:
qDebug() << "E_FAIL";
break;
default:
qDebug() << "asser welljuh";
}
}
void Debugger::openProcess(const QString& filename)
{
DEBUG_CREATE_PROCESS_OPTIONS dbgopts;
memset(&dbgopts, 0, sizeof(dbgopts));
dbgopts.CreateFlags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS;
HRESULT hr;
QFileInfo fi(filename);
m_pDebugSymbols->AppendImagePathWide(fi.absolutePath().replace('/','\\').utf16());
//m_pDebugSymbols->AppendSymbolPathWide(fi.absolutePath().replace('/','\\').utf16());
//m_pDebugSymbols->AppendSymbolPathWide(L"D:\\dev\\qt\\4.4.3\\lib");
m_pDebugSymbols->SetSymbolOptions(SYMOPT_CASE_INSENSITIVE | SYMOPT_UNDNAME | SYMOPT_DEBUG | SYMOPT_LOAD_LINES | SYMOPT_OMAP_FIND_NEAREST | SYMOPT_AUTO_PUBLICS);
//m_pDebugSymbols->AddSymbolOptions(SYMOPT_CASE_INSENSITIVE | SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS | SYMOPT_DEBUG | SYMOPT_LOAD_LINES | SYMOPT_OMAP_FIND_NEAREST | SYMOPT_AUTO_PUBLICS | SYMOPT_NO_IMAGE_SEARCH);
hr = m_pDebugClient->CreateProcess2Wide(NULL,
const_cast<PWSTR>(filename.utf16()),
&dbgopts,
sizeof(dbgopts),
NULL, // TODO: think about the initial directory
NULL); // TODO: think about setting the environment
if (FAILED(hr)) {
qWarning("CreateProcess2Wide failed");
return;
}
m_watchTimer = startTimer(0);
}
void Debugger::closeProcess()
{
m_pDebugClient->TerminateCurrentProcess();
}
void Debugger::breakAtCurrentPosition()
{
if (!m_hDebuggeeProcess)
return;
if (!DebugBreakProcess(m_hDebuggeeProcess))
qWarning("DebugBreakProcess failed.");
}
void Debugger::continueProcess()
{
m_watchTimer = startTimer(0);
}
void Debugger::handleDebugEvent()
{
HRESULT hr;
ULONG numberOfThreads;
hr = m_pDebugSystemObjects->GetNumberThreads(&numberOfThreads);
const ULONG maxThreadIds = 200;
ULONG threadIds[maxThreadIds];
ULONG biggestThreadId = qMin(maxThreadIds, numberOfThreads - 1);
hr = m_pDebugSystemObjects->GetThreadIdsByIndex(0, biggestThreadId, threadIds, 0);
for (ULONG threadId = 0; threadId <= biggestThreadId; ++threadId) {
qDebug() << "dumping stack for thread" << threadId;
m_pDebugSystemObjects->SetCurrentThreadId(threadId);
ULONG64 frameOffset, instructionOffset, stackOffset;
if (FAILED(m_pDebugRegisters->GetFrameOffset2(DEBUG_REGSRC_DEBUGGEE, &frameOffset)) ||
FAILED(m_pDebugRegisters->GetInstructionOffset2(DEBUG_REGSRC_DEBUGGEE, &instructionOffset)) ||
FAILED(m_pDebugRegisters->GetStackOffset2(DEBUG_REGSRC_DEBUGGEE, &stackOffset)))
{
frameOffset = instructionOffset = stackOffset = 0;
}
//frameOffset = instructionOffset = stackOffset = 0;
const ULONG numFrames = 100;
ULONG numFramesFilled = 0;
DEBUG_STACK_FRAME frames[numFrames];
hr = m_pDebugControl->GetStackTrace(frameOffset, stackOffset, instructionOffset, frames, numFrames, &numFramesFilled);
if (FAILED(hr))
qDebug() << "GetStackTrace failed";
const size_t buflen = 1024;
WCHAR wszBuf[buflen];
for (ULONG i=0; i < numFramesFilled; ++i) {
m_pDebugSymbols->GetNameByOffsetWide(frames[i].InstructionOffset, wszBuf, buflen, 0, 0);
qDebug() << QString::fromUtf16(wszBuf);
}
//m_pDebugSymbols->GetImagePathWide(wszBuf, buflen, 0);
//qDebug() << "ImagePath" << QString::fromUtf16(wszBuf);
//m_pDebugSymbols->GetSymbolPathWide(wszBuf, buflen, 0);
//qDebug() << "SymbolPath" << QString::fromUtf16(wszBuf);
//m_pDebugControl->OutputStackTrace(DEBUG_OUTCTL_THIS_CLIENT, 0, 2, DEBUG_STACK_FRAME_ADDRESSES | DEBUG_STACK_COLUMN_NAMES | DEBUG_STACK_FRAME_NUMBERS);
//m_pDebugControl->OutputStackTrace(DEBUG_OUTCTL_THIS_CLIENT, frames, numFramesFilled, DEBUG_STACK_SOURCE_LINE);
}
}
void Debugger::handleCreateProcessEvent(DEBUG_EVENT* e)
{
//qDebug() << "CREATE_PROCESS_DEBUG_EVENT";
//m_hDebuggeeProcess = e->u.CreateProcessInfo.hProcess;
//m_hDebuggeeThread = e->u.CreateProcessInfo.hThread;
//m_hDebuggeeImage = e->u.CreateProcessInfo.hFile;
//QFileInfo fi(m_pDbgProcess->processFileName());
//BOOL bSuccess;
//bSuccess = SymInitialize(m_hDebuggeeProcess, fi.absolutePath().utf16(), FALSE);
//if (!bSuccess)
// qWarning("SymInitialize failed");
//else {
// SymSetOptions(SYMOPT_DEBUG | SYMOPT_LOAD_LINES | SYMOPT_FAIL_CRITICAL_ERRORS);
// if (!SymLoadModule64(m_hDebuggeeProcess, m_hDebuggeeImage, NULL, NULL, NULL, NULL))
// qDebug() << "SymLoadModule64 failed w/ error code" << GetLastError();
//}
}
void Debugger::handleExceptionEvent(DEBUG_EVENT* e)
{
//BOOL bSuccess;
//SuspendThread(m_hDebuggeeThread);
//CONTEXT context;
//memset(&context, 0, sizeof(context));
//context.ContextFlags = CONTEXT_ALL;
//bSuccess = GetThreadContext(m_hDebuggeeThread, &context);
//if (!bSuccess)
// qDebug() << "GetThreadContext failed w/ error code" << GetLastError();
//ResumeThread(m_hDebuggeeThread);
//STACKFRAME64 stackFrame;
//stackFrame.AddrPC.Offset = context.Eip;
//stackFrame.AddrPC.Mode = AddrModeFlat;
//stackFrame.AddrFrame.Offset = context.Ebp;
//stackFrame.AddrFrame.Mode = AddrModeFlat;
//stackFrame.AddrStack.Offset = context.Esp;
//stackFrame.AddrStack.Mode = AddrModeFlat;
//m_currentStackTrace.clear();
//do {
// StackFrame sf;
// bSuccess = StackWalk64(IMAGE_FILE_MACHINE_I386, m_hDebuggeeProcess, m_hDebuggeeThread, &stackFrame,
// &context, NULL, SymFunctionTableAccess64, SymGetModuleBase64, NULL);
// if (bSuccess) {
// qDebug() << "StackWalk";
// IMAGEHLP_MODULE64 moduleInfo;
// moduleInfo.SizeOfStruct = sizeof(moduleInfo);
// if (SymGetModuleInfo64(m_hDebuggeeProcess, stackFrame.AddrPC.Offset, &moduleInfo))
// qDebug() << "SymGetModuleInfo64 success!";
// else
// qDebug() << "SymGetModuleInfo64 failed w/ error code" << GetLastError();
// }
// if (stackFrame.AddrPC.Offset) {
// DWORD64 dwDisplacement;
// const size_t bufferSize = 200;
// class MySymbol : public IMAGEHLP_SYMBOL64
// {
// public:
// private:
// char buffer[bufferSize];
// };
// MySymbol img;
// ZeroMemory(&img, sizeof(img));
// img.SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);
// img.MaxNameLength = bufferSize;
// BOOL bSuccess;
// bSuccess = SymGetSymFromAddr64(m_hDebuggeeProcess,
// stackFrame.AddrPC.Offset,
// &dwDisplacement,
// &img);
// if (bSuccess) {
// qDebug() << "SymGetSymFromAddr64:" << img.Name;
// sf.symbol = QString::fromLocal8Bit(img.Name);
// }
// else
// qDebug() << "SymGetSymFromAddr64 failed w/ error code" << GetLastError();
// }
// if (stackFrame.AddrPC.Offset) {
// DWORD dwDisplacement;
// IMAGEHLP_LINE64 line;
// ZeroMemory(&line, sizeof(line));
// line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
// BOOL bSuccess;
// bSuccess = SymGetLineFromAddr64(m_hDebuggeeProcess,
// stackFrame.AddrPC.Offset,
// &dwDisplacement,
// &line);
// if (bSuccess) {
// //qDebug() << "SymGetLineFromAddr64:" << QString::fromUtf16((ushort*)line.FileName) << line.LineNumber;
// sf.filename = QString::fromUtf16((ushort*)line.FileName);
// sf.line = line.LineNumber;
// } else
// qDebug() << "SymGetLineFromAddr64 failed w/ error code" << GetLastError();
// m_currentStackTrace.append(sf);
// }
//} while (bSuccess);
//emit debuggeePaused();
}
void Debugger::handleOutputDebugStringEvent(DEBUG_EVENT* e)
{
//qDebug() << "OUTPUT_DEBUG_STRING_EVENT";
//BOOL bSuccess;
//SIZE_T nNumberOfBytesRead;
//void* buffer;
//QString result;
//if (e->u.DebugString.fUnicode) {
// buffer = malloc(e->u.DebugString.nDebugStringLength * sizeof(WCHAR));
//} else {
// buffer = malloc(e->u.DebugString.nDebugStringLength * sizeof(char));
//}
//bSuccess = ReadProcessMemory(m_hDebuggeeProcess, e->u.DebugString.lpDebugStringData,
// buffer, e->u.DebugString.nDebugStringLength, &nNumberOfBytesRead);
//if (bSuccess) {
// if (e->u.DebugString.fUnicode)
// result = QString::fromUtf16(reinterpret_cast<ushort*>(buffer), nNumberOfBytesRead);
// else
// result = QString::fromLocal8Bit(reinterpret_cast<char*>(buffer), nNumberOfBytesRead);
// emit debugOutput(result);
//}
//free(buffer);
}

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tests/manual/cdbdebugger/debugger.h Normal file
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#pragma once
#include "windbgeventcallback.h"
#include <QObject>
#include <QVector>
#define DBGHELP_TRANSLATE_TCHAR
#include <Dbghelp.h>
class WinDbgThread;
class Debugger : public QObject
{
Q_OBJECT
public:
Debugger(QObject* parent = 0);
~Debugger();
void openProcess(const QString& filename);
void closeProcess();
void breakAtCurrentPosition();
void continueProcess();
struct StackFrame
{
QString symbol;
QString filename;
uint line;
};
typedef QVector<StackFrame> StackTrace;
StackTrace stackTrace() { return m_currentStackTrace; }
signals:
void debugOutput(const QString&);
void debuggeePaused();
protected:
void timerEvent(QTimerEvent*);
private:
void handleDebugEvent();
void handleCreateProcessEvent(DEBUG_EVENT* e);
void handleExceptionEvent(DEBUG_EVENT* e);
void handleOutputDebugStringEvent(DEBUG_EVENT* e);
private:
HANDLE m_hDebuggeeProcess;
HANDLE m_hDebuggeeThread;
HANDLE m_hDebuggeeImage;
StackTrace m_currentStackTrace;
//DWORD64 m_dwModuleBaseAddress;
int m_watchTimer;
IDebugClient5* m_pDebugClient;
IDebugControl4* m_pDebugControl;
IDebugSystemObjects4* m_pDebugSystemObjects;
IDebugSymbols3* m_pDebugSymbols;
IDebugRegisters2* m_pDebugRegisters;
WinDbgEventCallback m_callbackEvent;
//struct ThreadInfo
//{
// ULONG64 handle, dataOffset, startOffset;
//};
//QVector<ThreadInfo> m_threadlist;
friend class WinDbgEventCallback;
};

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tests/manual/cdbdebugger/main.cpp Normal file
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#include "mainwindow.h"
#include <QApplication>
int main(int argc, char* argv[])
{
QApplication app(argc, argv);
MainWindow mw;
if (argc >= 2) mw.setDebuggee(argv[1]);
mw.show();
return app.exec();
}

90
tests/manual/cdbdebugger/mainwindow.cpp Normal file
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#include "mainwindow.h"
#include <QFileDialog>
#include <QTextStream>
#include <QDebug>
MainWindow::MainWindow()
: QMainWindow(0, 0)
{
setupUi(this);
connect(&m_debugger, SIGNAL(debugOutput(const QString&)), SLOT(appendOutput(const QString&)));
connect(&m_debugger, SIGNAL(debuggeePaused()), SLOT(onDebuggeePaused()));
}
void MainWindow::setDebuggee(const QString& filename)
{
m_debugger.openProcess(filename);
}
void MainWindow::on_actionOpen_triggered()
{
QString exeName;
exeName = QFileDialog::getOpenFileName(this, "Open Executable", ".", "*.exe");
if (!exeName.isNull())
m_debugger.openProcess(exeName);
}
void MainWindow::on_actionExit_triggered()
{
close();
}
void MainWindow::on_actionBreak_triggered()
{
m_debugger.breakAtCurrentPosition();
}
void MainWindow::on_actionRun_triggered()
{
m_debugger.continueProcess();
}
void MainWindow::on_lstStack_itemClicked(QListWidgetItem* item)
{
Debugger::StackFrame sf = m_stackTrace[ lstStack->row(item) ];
QFile f(sf.filename);
if (!f.exists())
return;
f.open(QFile::ReadOnly);
QTextStream ts(&f);
int cursorPos = 0;
int currentLine = 0;
QString fullText;
do {
QString strLine = ts.readLine();
currentLine++;
if (currentLine < sf.line)
cursorPos += strLine.length();
fullText.append(strLine + "\n");
} while (!ts.atEnd());
codeWindow->setPlainText(fullText);
//QList<QTextEdit::ExtraSelection> extraSelections;
//extraSelections.append(QTextEdit::ExtraSelection());
//QTextEdit::ExtraSelection& exsel = extraSelections.first();
//exsel.cursor.setPosition(cursorPos, QTextCursor::MoveAnchor);
//exsel.cursor.select(QTextCursor::LineUnderCursor);
//exsel.format.setBackground(Qt::red);
//exsel.format.setFontUnderline(true);
//codeWindow->setExtraSelections(extraSelections);
}
void MainWindow::appendOutput(const QString& str)
{
teOutput->setPlainText(teOutput->toPlainText() + str);
}
void MainWindow::onDebuggeePaused()
{
lstStack->clear();
m_stackTrace = m_debugger.stackTrace();
foreach (Debugger::StackFrame sf, m_stackTrace) {
QString str = sf.symbol;
if (!sf.filename.isEmpty())
str.append(" at " + sf.filename + ":" + QString::number(sf.line));
lstStack->addItem(str);
}
}

26
tests/manual/cdbdebugger/mainwindow.h Normal file
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#pragma once
#include "ui_mainwindow.h"
#include "debugger.h"
class MainWindow : public QMainWindow, private Ui_MainWindow
{
Q_OBJECT
public:
MainWindow();
void setDebuggee(const QString& filename);
private slots:
void on_actionOpen_triggered();
void on_actionExit_triggered();
void on_actionBreak_triggered();
void on_actionRun_triggered();
void on_lstStack_itemClicked(QListWidgetItem*);
void appendOutput(const QString&);
void onDebuggeePaused();
private:
Debugger m_debugger;
Debugger::StackTrace m_stackTrace;
};

174
tests/manual/cdbdebugger/mainwindow.ui Normal file
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<ui version="4.0" >
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow" >
<property name="geometry" >
<rect>
<x>0</x>
<y>0</y>
<width>599</width>
<height>606</height>
</rect>
</property>
<property name="windowTitle" >
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget" >
<layout class="QVBoxLayout" name="verticalLayout" >
<item>
<widget class="QPlainTextEdit" name="codeWindow" >
<property name="sizePolicy" >
<sizepolicy vsizetype="Expanding" hsizetype="Expanding" >
<horstretch>0</horstretch>
<verstretch>1</verstretch>
</sizepolicy>
</property>
<property name="undoRedoEnabled" >
<bool>false</bool>
</property>
<property name="lineWrapMode" >
<enum>QPlainTextEdit::NoWrap</enum>
</property>
<property name="readOnly" >
<bool>true</bool>
</property>
<property name="textInteractionFlags" >
<set>Qt::NoTextInteraction</set>
</property>
</widget>
</item>
<item>
<widget class="QTabWidget" name="tabWidget" >
<property name="sizePolicy" >
<sizepolicy vsizetype="Expanding" hsizetype="Expanding" >
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="currentIndex" >
<number>1</number>
</property>
<widget class="QWidget" name="tab" >
<attribute name="title" >
<string>Threads</string>
</attribute>
<layout class="QHBoxLayout" name="horizontalLayout" >
<item>
<widget class="QListWidget" name="lstThreads" />
</item>
</layout>
</widget>
<widget class="QWidget" name="tab_2" >
<attribute name="title" >
<string>Stack</string>
</attribute>
<layout class="QHBoxLayout" name="horizontalLayout_2" >
<item>
<widget class="QListWidget" name="lstStack" />
</item>
</layout>
</widget>
<widget class="QWidget" name="tab_3" >
<attribute name="title" >
<string>Output</string>
</attribute>
<layout class="QHBoxLayout" name="horizontalLayout_3" >
<item>
<widget class="QPlainTextEdit" name="teOutput" />
</item>
</layout>
</widget>
</widget>
</item>
</layout>
</widget>
<widget class="QMenuBar" name="menubar" >
<property name="geometry" >
<rect>
<x>0</x>
<y>0</y>
<width>599</width>
<height>21</height>
</rect>
</property>
<widget class="QMenu" name="menu_Debug" >
<property name="title" >
<string>&amp;Debug</string>
</property>
<addaction name="actionRun" />
<addaction name="actionBreak" />
<addaction name="actionStepOver" />
<addaction name="actionStopDebugging" />
<addaction name="actionStepInto" />
</widget>
<widget class="QMenu" name="menu_File" >
<property name="title" >
<string>&amp;File</string>
</property>
<addaction name="actionOpen" />
<addaction name="actionClose" />
<addaction name="separator" />
<addaction name="actionExit" />
</widget>
<addaction name="menu_File" />
<addaction name="menu_Debug" />
</widget>
<widget class="QStatusBar" name="statusbar" />
<action name="actionOpen" >
<property name="text" >
<string>&amp;Open...</string>
</property>
<property name="shortcut" >
<string>Ctrl+O</string>
</property>
</action>
<action name="actionClose" >
<property name="text" >
<string>&amp;Close</string>
</property>
</action>
<action name="actionExit" >
<property name="text" >
<string>E&amp;xit</string>
</property>
</action>
<action name="actionRun" >
<property name="text" >
<string>&amp;Run</string>
</property>
<property name="shortcut" >
<string>F5</string>
</property>
</action>
<action name="actionBreak" >
<property name="text" >
<string>&amp;Break</string>
</property>
</action>
<action name="actionStepOver" >
<property name="text" >
<string>Step over</string>
</property>
<property name="shortcut" >
<string>F10</string>
</property>
</action>
<action name="actionStepInto" >
<property name="text" >
<string>Step into</string>
</property>
<property name="shortcut" >
<string>F11</string>
</property>
</action>
<action name="actionStopDebugging" >
<property name="text" >
<string>Stop debugging</string>
</property>
<property name="shortcut" >
<string>Shift+F5</string>
</property>
</action>
</widget>
<resources/>
<connections/>
</ui>

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tests/manual/cdbdebugger/outputcallback.cpp Normal file
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#include <stdio.h>
#include <windows.h>
#include <dbgeng.h>
#include "outputcallback.h"
WinDbgOutputCallback g_outputCallbacks;
STDMETHODIMP
WinDbgOutputCallback::QueryInterface(
THIS_
IN REFIID InterfaceId,
OUT PVOID* Interface
)
{
*Interface = NULL;
if (IsEqualIID(InterfaceId, __uuidof(IUnknown)) ||
IsEqualIID(InterfaceId, __uuidof(IDebugOutputCallbacks)))
{
*Interface = (IDebugOutputCallbacks *)this;
AddRef();
return S_OK;
}
else
{
return E_NOINTERFACE;
}
}
STDMETHODIMP_(ULONG)
WinDbgOutputCallback::AddRef(
THIS
)
{
// This class is designed to be static so
// there's no true refcount.
return 1;
}
STDMETHODIMP_(ULONG)
WinDbgOutputCallback::Release(
THIS
)
{
// This class is designed to be static so
// there's no true refcount.
return 0;
}
STDMETHODIMP
WinDbgOutputCallback::Output(
THIS_
IN ULONG Mask,
IN PCSTR Text
)
{
UNREFERENCED_PARAMETER(Mask);
fputs(Text, stdout);
return S_OK;
}

30
tests/manual/cdbdebugger/outputcallback.h Normal file
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#ifndef __OUT_HPP__
#define __OUT_HPP__
class WinDbgOutputCallback : public IDebugOutputCallbacks
{
public:
// IUnknown.
STDMETHOD(QueryInterface)(
THIS_
IN REFIID InterfaceId,
OUT PVOID* Interface
);
STDMETHOD_(ULONG, AddRef)(
THIS
);
STDMETHOD_(ULONG, Release)(
THIS
);
// IDebugOutputCallbacks.
STDMETHOD(Output)(
THIS_
IN ULONG Mask,
IN PCSTR Text
);
};
extern WinDbgOutputCallback g_outputCallbacks;
#endif // #ifndef __OUT_HPP__

186
tests/manual/cdbdebugger/windbgeventcallback.cpp Normal file
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#include "windbgeventcallback.h"
#include "debugger.h"
STDMETHODIMP
WinDbgEventCallback::QueryInterface(
THIS_
IN REFIID InterfaceId,
OUT PVOID* Interface
)
{
*Interface = NULL;
if (IsEqualIID(InterfaceId, __uuidof(IUnknown)) ||
IsEqualIID(InterfaceId, __uuidof(IDebugOutputCallbacks)))
{
*Interface = (IDebugOutputCallbacks *)this;
AddRef();
return S_OK;
}
else
{
return E_NOINTERFACE;
}
}
STDMETHODIMP_(ULONG)
WinDbgEventCallback::AddRef(
THIS
)
{
// This class is designed to be static so
// there's no true refcount.
return 1;
}
STDMETHODIMP_(ULONG)
WinDbgEventCallback::Release(
THIS
)
{
// This class is designed to be static so
// there's no true refcount.
return 0;
}
STDMETHODIMP WinDbgEventCallback::GetInterestMask(
THIS_
__out PULONG Mask
)
{
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::Breakpoint(
THIS_
__in PDEBUG_BREAKPOINT Bp
)
{
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::Exception(
THIS_
__in PEXCEPTION_RECORD64 Exception,
__in ULONG FirstChance
)
{
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::CreateThread(
THIS_
__in ULONG64 Handle,
__in ULONG64 DataOffset,
__in ULONG64 StartOffset
)
{
//Debugger::ThreadInfo ti;
//ti.handle = Handle;
//ti.dataOffset = DataOffset;
//ti.startOffset = StartOffset;
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::ExitThread(
THIS_
__in ULONG ExitCode
)
{
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::CreateProcess(
THIS_
__in ULONG64 ImageFileHandle,
__in ULONG64 Handle,
__in ULONG64 BaseOffset,
__in ULONG ModuleSize,
__in_opt PCSTR ModuleName,
__in_opt PCSTR ImageName,
__in ULONG CheckSum,
__in ULONG TimeDateStamp,
__in ULONG64 InitialThreadHandle,
__in ULONG64 ThreadDataOffset,
__in ULONG64 StartOffset
)
{
m_pDebugger->m_hDebuggeeProcess = (HANDLE)Handle;
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::ExitProcess(
THIS_
__in ULONG ExitCode
)
{
m_pDebugger->m_hDebuggeeProcess = 0;
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::LoadModule(
THIS_
__in ULONG64 ImageFileHandle,
__in ULONG64 BaseOffset,
__in ULONG ModuleSize,
__in_opt PCSTR ModuleName,
__in_opt PCSTR ImageName,
__in ULONG CheckSum,
__in ULONG TimeDateStamp
)
{
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::UnloadModule(
THIS_
__in_opt PCSTR ImageBaseName,
__in ULONG64 BaseOffset
)
{
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::SystemError(
THIS_
__in ULONG Error,
__in ULONG Level
)
{
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::SessionStatus(
THIS_
__in ULONG Status
)
{
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::ChangeDebuggeeState(
THIS_
__in ULONG Flags,
__in ULONG64 Argument
)
{
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::ChangeEngineState(
THIS_
__in ULONG Flags,
__in ULONG64 Argument
)
{
return S_OK;
}
STDMETHODIMP WinDbgEventCallback::ChangeSymbolState(
THIS_
__in ULONG Flags,
__in ULONG64 Argument
)
{
return S_OK;
}

126
tests/manual/cdbdebugger/windbgeventcallback.h Normal file
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@@ -0,0 +1,126 @@
#pragma once
#include <windows.h>
#include <dbgeng.h>
class Debugger;
class WinDbgEventCallback : public IDebugEventCallbacks
{
public:
WinDbgEventCallback(Debugger* dbg)
: m_pDebugger(dbg)
{}
// IUnknown.
STDMETHOD(QueryInterface)(
THIS_
IN REFIID InterfaceId,
OUT PVOID* Interface
);
STDMETHOD_(ULONG, AddRef)(
THIS
);
STDMETHOD_(ULONG, Release)(
THIS
);
// IDebugEventCallbacks.
STDMETHOD(GetInterestMask)(
THIS_
__out PULONG Mask
);
STDMETHOD(Breakpoint)(
THIS_
__in PDEBUG_BREAKPOINT Bp
);
STDMETHOD(Exception)(
THIS_
__in PEXCEPTION_RECORD64 Exception,
__in ULONG FirstChance
);
STDMETHOD(CreateThread)(
THIS_
__in ULONG64 Handle,
__in ULONG64 DataOffset,
__in ULONG64 StartOffset
);
STDMETHOD(ExitThread)(
THIS_
__in ULONG ExitCode
);
STDMETHOD(CreateProcess)(
THIS_
__in ULONG64 ImageFileHandle,
__in ULONG64 Handle,
__in ULONG64 BaseOffset,
__in ULONG ModuleSize,
__in_opt PCSTR ModuleName,
__in_opt PCSTR ImageName,
__in ULONG CheckSum,
__in ULONG TimeDateStamp,
__in ULONG64 InitialThreadHandle,
__in ULONG64 ThreadDataOffset,
__in ULONG64 StartOffset
);
STDMETHOD(ExitProcess)(
THIS_
__in ULONG ExitCode
);
STDMETHOD(LoadModule)(
THIS_
__in ULONG64 ImageFileHandle,
__in ULONG64 BaseOffset,
__in ULONG ModuleSize,
__in_opt PCSTR ModuleName,
__in_opt PCSTR ImageName,
__in ULONG CheckSum,
__in ULONG TimeDateStamp
);
STDMETHOD(UnloadModule)(
THIS_
__in_opt PCSTR ImageBaseName,
__in ULONG64 BaseOffset
);
STDMETHOD(SystemError)(
THIS_
__in ULONG Error,
__in ULONG Level
);
STDMETHOD(SessionStatus)(
THIS_
__in ULONG Status
);
STDMETHOD(ChangeDebuggeeState)(
THIS_
__in ULONG Flags,
__in ULONG64 Argument
);
STDMETHOD(ChangeEngineState)(
THIS_
__in ULONG Flags,
__in ULONG64 Argument
);
STDMETHOD(ChangeSymbolState)(
THIS_
__in ULONG Flags,
__in ULONG64 Argument
);
private:
Debugger* m_pDebugger;
};

150
tests/manual/cdbdebugger/windbgthread.cpp Normal file
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#include "windbgthread.h"
#include <QDebug>
#define DBGHELP_TRANSLATE_TCHAR
#include <Dbghelp.h>
WinDbgThread::WinDbgThread(QObject* parent)
: QThread(parent),
m_state(Idle)
{
}
WinDbgThread::~WinDbgThread()
{
stopProcess();
}
void WinDbgThread::startProcess(const QString& filename)
{
stopProcess();
m_bOwnsProcess = true;
m_processFileName = filename;
m_pi.dwProcessId = 0;
QThread::start();
}
void WinDbgThread::stopProcess()
{
if (!QThread::isRunning())
return;
switch (m_state)
{
case ProcessRunning:
if (m_bOwnsProcess) {
m_bOwnsProcess = false; // don't terminate in the loop again
TerminateProcess(m_pi.hProcess, 0);
}
// don't break here
case ProcessPaused:
m_bAbortEventPollingLoop = true;
resume();
break;
}
QThread::wait(5000);
if (QThread::isRunning()) {
qWarning("WinDbgThread still running... terminating!");
QThread::terminate();
}
}
void WinDbgThread::attachToProcess(DWORD processId)
{
m_bOwnsProcess = false;
m_processFileName = QString();
m_pi.dwProcessId = processId;
QThread::start();
}
void WinDbgThread::run()
{
qDebug() << "WinDbgThread started";
// start process or attach process
if (m_bOwnsProcess) {
// create new process
internalStartProcess();
} else {
// attach to process
qWarning("attach to process not yet implemented");
return;
}
m_hThisThread = OpenThread(THREAD_SUSPEND_RESUME, FALSE, GetCurrentThreadId());
if (!m_hThisThread) {
qWarning("WinDbgThread: can't open thread handle");
return;
}
DEBUG_EVENT debugEvent;
m_bAbortEventPollingLoop = false;
while (WaitForDebugEvent(&debugEvent, INFINITE)) {
setState(ProcessPaused);
emit debugEventOccured(&debugEvent);
suspend();
if (m_bAbortEventPollingLoop)
break;
ContinueDebugEvent(debugEvent.dwProcessId, debugEvent.dwThreadId, DBG_CONTINUE);
setState(ProcessRunning);
}
setState(Idle);
if (m_bOwnsProcess) {
TerminateProcess(m_pi.hProcess, 0);
}
CloseHandle(m_pi.hProcess);
CloseHandle(m_pi.hThread);
CloseHandle(m_hThisThread);
qDebug() << "WinDbgThread finished";
}
void WinDbgThread::continueProcess()
{
if (m_state == ProcessPaused)
resume();
}
void WinDbgThread::pauseProcess()
{
if (m_state == ProcessRunning)
DebugBreakProcess(m_pi.hProcess);
}
void WinDbgThread::internalStartProcess()
{
BOOL bSuccess;
STARTUPINFO si;
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
si.wShowWindow = TRUE;
ZeroMemory(&m_pi, sizeof(m_pi));
DWORD dwCreationFlags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS;
bSuccess = CreateProcess(m_processFileName.utf16(), NULL, NULL, NULL, FALSE,
dwCreationFlags,
NULL, NULL, &si, &m_pi
);
if (bSuccess)
setState(ProcessRunning);
else
setState(Idle);
}
void WinDbgThread::setState(State s)
{
m_state = s;
}
void WinDbgThread::suspend()
{
SuspendThread(m_hThisThread);
}
void WinDbgThread::resume()
{
ResumeThread(m_hThisThread);
}

49
tests/manual/cdbdebugger/windbgthread.h Normal file
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#pragma once
#include <QThread>
#include <windows.h>
class WinDbgThread : protected QThread
{
Q_OBJECT
public:
WinDbgThread(QObject* parent = 0);
~WinDbgThread();
void startProcess(const QString& filename);
void attachToProcess(DWORD processId);
void continueProcess();
void pauseProcess();
void stopProcess();
const QString& processFileName() { return m_processFileName; }
QObject* asQObject() { return this; }
//using QThread::isRunning;
signals:
void debugEventOccured(void*);
protected:
void run();
private:
void internalStartProcess();
void suspend();
void resume();
enum State {
Idle,
ProcessRunning,
ProcessPaused
};
void setState(State s);
private:
State m_state;
QString m_processFileName;
HANDLE m_hThisThread;
PROCESS_INFORMATION m_pi;
bool m_bOwnsProcess;
bool m_bAbortEventPollingLoop;
};