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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/
#include "cdbstacktracecontext.h"
#include "cdbstackframecontext.h"
#include "cdbbreakpoint.h"
#include "cdbsymbolgroupcontext.h"
#include "cdbdebugengine_p.h"
#include "cdbdumperhelper.h"
#include <QtCore/QDir>
#include <QtCore/QTextStream>
namespace Debugger {
namespace Internal {
CdbStackTraceContext::CdbStackTraceContext(const QSharedPointer<CdbDumperHelper> &dumper) :
m_dumper(dumper),
m_cif(dumper->comInterfaces()),
m_instructionOffset(0)
{
}
CdbStackTraceContext *CdbStackTraceContext::create(const QSharedPointer<CdbDumperHelper> &dumper,
unsigned long threadId,
QString *errorMessage)
{
if (debugCDB)
qDebug() << Q_FUNC_INFO << threadId;
CdbComInterfaces *cif = dumper->comInterfaces();
HRESULT hr = cif->debugSystemObjects->SetCurrentThreadId(threadId);
if (FAILED(hr)) {
*errorMessage = QString::fromLatin1("%1: SetCurrentThreadId %2 failed: %3").
arg(QString::fromLatin1(Q_FUNC_INFO)).
arg(threadId).
arg(msgDebugEngineComResult(hr));
return 0;
}
// fill the DEBUG_STACK_FRAME array
ULONG frameCount;
CdbStackTraceContext *ctx = new CdbStackTraceContext(dumper);
hr = cif->debugControl->GetStackTrace(0, 0, 0, ctx->m_cdbFrames, CdbStackTraceContext::maxFrames, &frameCount);
if (FAILED(hr)) {
delete ctx;
*errorMessage = msgComFailed("GetStackTrace", hr);
return 0;
}
if (!ctx->init(frameCount, errorMessage)) {
delete ctx;
return 0;
}
return ctx;
}
CdbStackTraceContext::~CdbStackTraceContext()
{
qDeleteAll(m_frameContexts);
}
bool CdbStackTraceContext::init(unsigned long frameCount, QString * /*errorMessage*/)
{
if (debugCDB)
qDebug() << Q_FUNC_INFO << frameCount;
m_frameContexts.resize(frameCount);
qFill(m_frameContexts, static_cast<CdbStackFrameContext*>(0));
// Convert the DEBUG_STACK_FRAMEs to our StackFrame structure and populate the frames
WCHAR wszBuf[MAX_PATH];
for (ULONG i=0; i < frameCount; ++i) {
StackFrame frame(i);
const ULONG64 instructionOffset = m_cdbFrames[i].InstructionOffset;
if (i == 0)
m_instructionOffset = instructionOffset;
frame.address = QString::fromLatin1("0x%1").arg(instructionOffset, 0, 16);
m_cif->debugSymbols->GetNameByOffsetWide(instructionOffset, wszBuf, MAX_PATH, 0, 0);
frame.function = QString::fromUtf16(reinterpret_cast<const ushort *>(wszBuf));
ULONG ulLine;
ULONG64 ul64Displacement;
const HRESULT hr = m_cif->debugSymbols->GetLineByOffsetWide(instructionOffset, &ulLine, wszBuf, MAX_PATH, 0, &ul64Displacement);
if (SUCCEEDED(hr)) {
frame.line = ulLine;
// Vitally important to use canonical file that matches editormanager,
// else the marker will not show.
frame.file = CDBBreakPoint::canonicalSourceFile(QString::fromUtf16(reinterpret_cast<const ushort *>(wszBuf)));
}
m_frames.push_back(frame);
}
return true;
}
int CdbStackTraceContext::indexOf(const QString &function) const
{
const QChar exclamationMark = QLatin1Char('!');
const int count = m_frames.size();
// Module contained ('module!foo'). Exact match
if (function.contains(exclamationMark)) {
for (int i = 0; i < count; i++)
if (m_frames.at(i).function == function)
return i;
return -1;
}
// No module, fuzzy match
QString pattern = exclamationMark + function;
for (int i = 0; i < count; i++)
if (m_frames.at(i).function.endsWith(pattern))
return i;
return -1;
}
static inline QString msgFrameContextFailed(int index, const StackFrame &f, const QString &why)
{
return QString::fromLatin1("Unable to create stack frame context #%1, %2:%3 (%4): %5").
arg(index).arg(f.function).arg(f.line).arg(f.file, why);
}
CdbStackFrameContext *CdbStackTraceContext::frameContextAt(int index, QString *errorMessage)
{
// Create a frame on demand
if (debugCDB)
qDebug() << Q_FUNC_INFO << index;
if (index < 0 || index >= m_frameContexts.size()) {
*errorMessage = QString::fromLatin1("%1: Index %2 out of range %3.").
arg(QLatin1String(Q_FUNC_INFO)).arg(index).arg(m_frameContexts.size());
return 0;
}
if (m_frameContexts.at(index))
return m_frameContexts.at(index);
CIDebugSymbolGroup *sg = createSymbolGroup(index, errorMessage);
if (!sg) {
*errorMessage = msgFrameContextFailed(index, m_frames.at(index), *errorMessage);
return 0;
}
CdbSymbolGroupContext *sc = CdbSymbolGroupContext::create(QLatin1String("local"), sg, errorMessage);
if (!sc) {
*errorMessage = msgFrameContextFailed(index, m_frames.at(index), *errorMessage);
return 0;
}
CdbStackFrameContext *fr = new CdbStackFrameContext(m_dumper, sc);
m_frameContexts[index] = fr;
return fr;
}
CIDebugSymbolGroup *CdbStackTraceContext::createSymbolGroup(int index, QString *errorMessage)
{
CIDebugSymbolGroup *sg = 0;
HRESULT hr = m_cif->debugSymbols->GetScopeSymbolGroup2(DEBUG_SCOPE_GROUP_LOCALS, NULL, &sg);
if (FAILED(hr)) {
*errorMessage = msgComFailed("GetScopeSymbolGroup", hr);
return 0;
}
hr = m_cif->debugSymbols->SetScope(0, m_cdbFrames + index, NULL, 0);
if (FAILED(hr)) {
*errorMessage = msgComFailed("SetScope", hr);
sg->Release();
return 0;
}
// refresh with current frame
hr = m_cif->debugSymbols->GetScopeSymbolGroup2(DEBUG_SCOPE_GROUP_LOCALS, sg, &sg);
if (FAILED(hr)) {
*errorMessage = msgComFailed("GetScopeSymbolGroup", hr);
sg->Release();
return 0;
}
return sg;
}
QString CdbStackTraceContext::toString() const
{
QString rc;
QTextStream str(&rc);
format(str);
return rc;
}
void CdbStackTraceContext::format(QTextStream &str) const
{
const int count = m_frames.count();
const int defaultFieldWidth = str.fieldWidth();
const QTextStream::FieldAlignment defaultAlignment = str.fieldAlignment();
for (int f = 0; f < count; f++) {
const StackFrame &frame = m_frames.at(f);
const bool hasFile = !frame.file.isEmpty();
// left-pad level
str << qSetFieldWidth(6) << left << f;
str.setFieldWidth(defaultFieldWidth);
str.setFieldAlignment(defaultAlignment);
if (hasFile)
str << QDir::toNativeSeparators(frame.file) << ':' << frame.line << " (";
str << frame.function;
if (hasFile)
str << ')';
str << '\n';
}
}
} // namespace Internal
} // namespace Debugger
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