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Start stack frame context/symbol group classes for CDB

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This commit is contained in:
Friedemann Kleint
2009-03-26 16:49:28 +01:00
parent 393a03747b
commit 536320ea1a
10 changed files with 642 additions and 193 deletions
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247
src/plugins/debugger/cdb/cdbdebugengine.cpp
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@@ -29,6 +29,8 @@
#include "cdbdebugengine.h"
#include "cdbdebugengine_p.h"
#include "cdbsymbolgroupcontext.h"
#include "cdbstacktracecontext.h"
#include "debuggermanager.h"
#include "breakhandler.h"
@@ -55,7 +57,12 @@
static const char *dbgEngineDllC = "dbgeng";
static const char *debugCreateFuncC = "DebugCreate";
static QString msgDebugEngineComResult(HRESULT hr)
static const char *localSymbolRootC = "local";
namespace Debugger {
namespace Internal {
QString msgDebugEngineComResult(HRESULT hr)
{
switch (hr) {
case S_OK:
@@ -87,13 +94,12 @@ static QString msgStackIndexOutOfRange(int idx, int size)
return QString::fromLatin1("Frame index %1 out of range (%2).").arg(idx).arg(size);
}
static QString msgComFailed(const char *func, HRESULT hr)
QString msgComFailed(const char *func, HRESULT hr)
{
return QString::fromLatin1("%1 failed: %2").arg(QLatin1String(func), msgDebugEngineComResult(hr));
}
namespace Debugger {
namespace Internal {
static const char *msgNoStackTraceC = "Internal error: no stack trace present.";
DebuggerEngineLibrary::DebuggerEngineLibrary() :
m_debugCreate(0)
@@ -138,6 +144,7 @@ CdbDebugEnginePrivate::CdbDebugEnginePrivate(DebuggerManager *parent, CdbDebugEn
m_engine(engine),
m_debuggerManager(parent),
m_debuggerManagerAccess(parent->engineInterface()),
m_currentStackTrace(0),
m_mode(AttachCore)
{
}
@@ -205,6 +212,7 @@ IDebuggerEngine *CdbDebugEngine::create(DebuggerManager *parent)
CdbDebugEnginePrivate::~CdbDebugEnginePrivate()
{
cleanStackTrace();
if (m_pDebugClient)
m_pDebugClient->Release();
if (m_pDebugControl)
@@ -217,6 +225,17 @@ CdbDebugEnginePrivate::~CdbDebugEnginePrivate()
m_pDebugRegisters->Release();
}
void CdbDebugEnginePrivate::cleanStackTrace()
{
if (debugCDB)
qDebug() << Q_FUNC_INFO;
if (m_currentStackTrace) {
delete m_currentStackTrace;
m_currentStackTrace = 0;
}
}
CdbDebugEngine::CdbDebugEngine(DebuggerManager *parent) :
IDebuggerEngine(parent),
m_d(new CdbDebugEnginePrivate(parent, this))
@@ -366,6 +385,7 @@ void CdbDebugEngine::processTerminated(unsigned long exitCode)
if (debugCDB)
qDebug() << Q_FUNC_INFO << exitCode;
m_d->cleanStackTrace();
m_d->setDebuggeeHandles(0, 0);
m_d->m_debuggerManagerAccess->notifyInferiorExited();
m_d->m_debuggerManager->exitDebugger();
@@ -377,6 +397,7 @@ void CdbDebugEngine::exitDebugger()
qDebug() << Q_FUNC_INFO;
if (m_d->m_hDebuggeeProcess) {
m_d->cleanStackTrace();
// Terminate or detach if we are running
HRESULT hr;
switch (m_d->m_mode) {
@@ -407,47 +428,22 @@ void CdbDebugEngine::exitDebugger()
killWatchTimer();
}
// Retrieve a symbol
static WatchData symbolToWatchData(ULONG index, const QString &namePrefix,
IDebugSymbolGroup2 *pDbgSymGroup)
class ModelBuildIterator {
public:
explicit ModelBuildIterator(WatchHandler *wh) : m_wh(wh) {}
ModelBuildIterator & operator*() { return *this; }
ModelBuildIterator &operator=(const WatchData &wd);
ModelBuildIterator &operator++() { return *this; }
private:
WatchHandler *m_wh;
};
ModelBuildIterator &ModelBuildIterator::operator=(const WatchData &wd)
{
// retrieve symbol names and value strings
ULONG nameLength;
static WCHAR nameBuffer[MAX_PATH + 1];
// Name
pDbgSymGroup->GetSymbolNameWide(index, nameBuffer, MAX_PATH, &nameLength);
nameBuffer[nameLength] = 0;
const QString name = QString::fromUtf16(nameBuffer);
// Type name
pDbgSymGroup->GetSymbolTypeNameWide(index, nameBuffer, MAX_PATH, &nameLength);
nameBuffer[nameLength] = 0;
const QString type = QString::fromUtf16(nameBuffer);
// Value
QString value;
const HRESULT hr = pDbgSymGroup->GetSymbolValueTextWide(index, nameBuffer, MAX_PATH, &nameLength);
if (SUCCEEDED(hr)) {
nameBuffer[nameLength] = 0;
value = QString::fromUtf16(nameBuffer);
} else {
value = QLatin1String("<unknown>");
}
WatchData wd;
wd.iname =namePrefix + name;
wd.name = name;
wd.value = value;
wd.type = type;
if (isPointerType(type)) {
wd.setTypeUnneeded();
wd.setValueUnneeded();
} else {
wd.setAllUnneeded();
}
if (debugCDB) {
qDebug() << Q_FUNC_INFO << index << "state=0x" << QString::number(wd.state, 16)
<< wd.name << " type=" << wd.type << " (" << type << ')'
<< " value " << wd.value << " (" << value << ')';
}
return wd;
m_wh->insertData(wd);
return *this;
}
bool CdbDebugEnginePrivate::updateLocals(int frameIndex,
@@ -456,82 +452,36 @@ bool CdbDebugEnginePrivate::updateLocals(int frameIndex,
{
if (debugCDB)
qDebug() << Q_FUNC_INFO << frameIndex;
CdbStackTrace cdbStackTrace;
if (!getCdbStrackTrace(&cdbStackTrace, errorMessage))
return false;
if ((unsigned)frameIndex >= cdbStackTrace.frameCount) {
*errorMessage = msgStackIndexOutOfRange(frameIndex, cdbStackTrace.frameCount);
return false;
}
IDebugSymbolGroup2 *pDbgSymGroup = 0;
DEBUG_SYMBOL_PARAMETERS *symParams = 0;
bool success = false;
wh->cleanup();
do {
HRESULT hr = m_pDebugSymbols->GetScopeSymbolGroup2(DEBUG_SCOPE_GROUP_LOCALS, NULL, &pDbgSymGroup);
if (FAILED(hr)) {
*errorMessage = msgComFailed("GetScopeSymbolGroup", hr);
if (!m_currentStackTrace) {
*errorMessage = QLatin1String(msgNoStackTraceC);
break;
}
hr = m_pDebugSymbols->SetScope(0, cdbStackTrace.frames + frameIndex, NULL, 0);
if (FAILED(hr)) {
*errorMessage = msgComFailed("SetScope", hr);
CdbSymbolGroupContext *sgc = m_currentStackTrace->symbolGroupContextAt(frameIndex, errorMessage);
if (!sgc) {
break;
}
// refresh with current frame
hr = m_pDebugSymbols->GetScopeSymbolGroup2(DEBUG_SCOPE_GROUP_LOCALS, pDbgSymGroup, &pDbgSymGroup);
if (FAILED(hr)) {
*errorMessage = msgComFailed("GetScopeSymbolGroup", hr);
break;
}
ULONG symbolCount;
hr = pDbgSymGroup->GetNumberSymbols(&symbolCount);
if (FAILED(hr)) {
*errorMessage = msgComFailed("GetNumberSymbols", hr);
break;
}
symParams = new DEBUG_SYMBOL_PARAMETERS[symbolCount];
hr = pDbgSymGroup->GetSymbolParameters(0, symbolCount, symParams);
if (FAILED(hr)) {
*errorMessage = msgComFailed("GetSymbolParameters", hr);
break;
}
wh->cleanup();
// retrieve symbol names and value strings.
// Add a dummy place holder in case children are needed
const QString localPrefix = QLatin1String("local.");
for (ULONG s = 0 ; s < symbolCount ; s++ ) {
WatchData wd = symbolToWatchData(s, localPrefix, pDbgSymGroup);
if (wd.isSomethingNeeded()) {
wh->insertData(wd.pointerChildPlaceHolder());
wd.setAllUnneeded();
wd.setChildCount(1);
}
wh->insertData(wd);
}
wh->rebuildModel();
ModelBuildIterator it(wh);
sgc->getSymbols(sgc->prefix(), it);
success = true;
} while (false);
wh->rebuildModel();
delete [] symParams;
if (pDbgSymGroup)
pDbgSymGroup->Release();
return success;
}
void CdbDebugEngine::updateWatchModel()
{
WatchHandler *watchHandler = m_d->m_debuggerManagerAccess->watchHandler();
const QList<WatchData> incomplete = watchHandler->takeCurrentIncompletes();
if (debugCDB)
qDebug() << Q_FUNC_INFO << incomplete.size();
foreach (const WatchData& wd, incomplete)
qDebug() << Q_FUNC_INFO << wd.toString();
}
void CdbDebugEngine::stepExec()
@@ -540,8 +490,9 @@ void CdbDebugEngine::stepExec()
qDebug() << Q_FUNC_INFO;
//m_pDebugControl->Execute(DEBUG_OUTCTL_THIS_CLIENT, "p", 0);
HRESULT hr;
hr = m_d->m_pDebugControl->SetExecutionStatus(DEBUG_STATUS_STEP_INTO);
m_d->cleanStackTrace();
const HRESULT hr = m_d->m_pDebugControl->SetExecutionStatus(DEBUG_STATUS_STEP_INTO);
Q_UNUSED(hr)
m_d->m_bIgnoreNextDebugEvent = true;
startWatchTimer();
}
@@ -594,6 +545,7 @@ void CdbDebugEngine::nextExec()
if (debugCDB)
qDebug() << Q_FUNC_INFO;
m_d->cleanStackTrace();
const HRESULT hr = m_d->m_pDebugControl->SetExecutionStatus(DEBUG_STATUS_STEP_OVER);
if (SUCCEEDED(hr)) {
startWatchTimer();
@@ -612,6 +564,7 @@ void CdbDebugEngine::nextIExec()
if (debugCDB)
qDebug() << Q_FUNC_INFO;
m_d->cleanStackTrace();
const HRESULT hr = m_d->m_pDebugControl->Execute(DEBUG_OUTCTL_THIS_CLIENT, "p", 0);
if (SUCCEEDED(hr)) {
startWatchTimer();
@@ -625,6 +578,7 @@ void CdbDebugEngine::continueInferior()
if (debugCDB)
qDebug() << Q_FUNC_INFO;
m_d->cleanStackTrace();
killWatchTimer();
m_d->m_debuggerManager->resetLocation();
@@ -714,7 +668,7 @@ void CdbDebugEngine::activateFrame(int frameIndex)
}
const StackFrame &frame = stackHandler->currentFrame();
if (frame.file.isEmpty() || !QFileInfo(frame.file).isReadable()) {
if (!frame.isUsable()) {
errorMessage = QString::fromLatin1("%1: file %2 unusable.").
arg(QLatin1String(Q_FUNC_INFO), frame.file);
break;
@@ -933,78 +887,29 @@ void CdbDebugEnginePrivate::updateThreadList()
th->setThreads(threads);
}
// Get CDB stack trace
bool CdbDebugEnginePrivate::getCdbStrackTrace(CdbStackTrace *st, QString *errorMessage)
{
HRESULT hr = m_pDebugSystemObjects->SetCurrentThreadId(m_currentThreadId);
if (FAILED(hr)) {
*errorMessage = QString::fromLatin1("%1: SetCurrentThreadId %2 failed: %3").
arg(QString::fromLatin1(Q_FUNC_INFO)).
arg(m_currentThreadId).
arg(msgDebugEngineComResult(hr));
return false;
}
hr = m_pDebugControl->GetStackTrace(0, 0, 0, st->frames, CdbStackTrace::maxFrames, &(st->frameCount));
if (FAILED(hr)) {
*errorMessage = *errorMessage = msgComFailed("GetStackTrace", hr);
return false;
}
return true;
}
bool CdbDebugEnginePrivate::getStackTrace(QList<StackFrame> *stackFrames,
int *current, QString *errorMessage)
{
stackFrames->clear();
*current = -1;
// Get the CDB trace and convert into debugger plugin structures
CdbStackTrace cdbStackTrace;
if (!getCdbStrackTrace(&cdbStackTrace, errorMessage))
return false;
WCHAR wszBuf[MAX_PATH];
for (ULONG i=0; i < cdbStackTrace.frameCount; ++i) {
StackFrame frame;
frame.line = 0;
frame.level = i;
frame.address = QString::fromLatin1("0x%1").arg(cdbStackTrace.frames[i].InstructionOffset, 0, 16);
m_pDebugSymbols->GetNameByOffsetWide(cdbStackTrace.frames[i].InstructionOffset, wszBuf, MAX_PATH, 0, 0);
frame.function = QString::fromUtf16(wszBuf);
ULONG ulLine;
ULONG ulFileNameSize;
ULONG64 ul64Displacement;
const HRESULT hr = m_pDebugSymbols->GetLineByOffsetWide(cdbStackTrace.frames[i].InstructionOffset, &ulLine, wszBuf, MAX_PATH, &ulFileNameSize, &ul64Displacement);
if (SUCCEEDED(hr)) {
frame.line = ulLine;
frame.file = QString::fromUtf16(wszBuf, ulFileNameSize);
}
stackFrames->append(frame);
}
// find the first usable frame and select it
const int count = stackFrames->count();
for (int i=0; i < count; ++i) {
const StackFrame &frame = stackFrames->at(i);
const bool usable = !frame.file.isEmpty() && QFileInfo(frame.file).isReadable();
if (usable) {
*current = i;
break;
}
}
return true;
}
void CdbDebugEnginePrivate::updateStackTrace()
{
if (debugCDB)
qDebug() << Q_FUNC_INFO;
QList<StackFrame> stackFrames;
int current;
// Create a new context
cleanStackTrace();
QString errorMessage;
if (getStackTrace(&stackFrames, &current, &errorMessage))
qWarning("%s", qPrintable(errorMessage));
m_currentStackTrace =
CdbStackTraceContext::create(m_pDebugControl, m_pDebugSystemObjects,
m_pDebugSymbols, m_currentThreadId, &errorMessage);
if (!m_currentStackTrace) {
qWarning("%s: failed to create trace context: %s", Q_FUNC_INFO, qPrintable(errorMessage));
return;
}
const QList<StackFrame> stackFrames = m_currentStackTrace->frames();
// find the first usable frame and select it
int current = -1;
const int count = stackFrames.count();
for (int i=0; i < count; ++i)
if (stackFrames.at(i).isUsable()) {
current = i;
break;
}
m_debuggerManagerAccess->stackHandler()->setFrames(stackFrames);
if (current >= 0) {