forked from qt-creator/qt-creator
13c97d652e
assignValueInDebugger: Pass on WatchData as well, pass on values as QVariant. Based on that, do more extensive checks in CDB, preventing assignment of non-PODs. Locals/Watch editing: * Disable while running * Edit pointer values as hex with validation. CDB: Strip class types off reported pointer values and reformat the values as short 0x-pointer values, introduce flag to WatchData::source to do dumper expansion handling. Windows: recognize int64 as int. Register handler: Fix accessing uninitialized value.
815 lines
29 KiB
C++
815 lines
29 KiB
C++
/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** Commercial Usage
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**
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** If you are unsure which license is appropriate for your use, please
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** contact the sales department at http://qt.nokia.com/contact.
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**
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**************************************************************************/
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#include "symbolgroupcontext.h"
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#include "coreengine.h"
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#include <QtCore/QTextStream>
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#include <QtCore/QCoreApplication>
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#include <QtCore/QRegExp>
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#include <QtCore/QString>
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#include <QtCore/QVariant>
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#include <QtCore/QDebug>
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enum { debug = 0 };
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enum { debugInternalDumpers = 0 };
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// name separator for shadowed variables
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static const char iNameShadowDelimiter = '#';
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static inline QString msgSymbolNotFound(const QString &s)
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{
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return QString::fromLatin1("The symbol '%1' could not be found.").arg(s);
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}
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static inline QString msgOutOfScope()
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{
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return QCoreApplication::translate("SymbolGroup", "Out of scope");
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}
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static inline bool isTopLevelSymbol(const DEBUG_SYMBOL_PARAMETERS &p)
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{
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return p.ParentSymbol == DEBUG_ANY_ID;
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}
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static inline void debugSymbolFlags(unsigned long f, QTextStream &str)
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{
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if (f & DEBUG_SYMBOL_EXPANDED)
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str << "DEBUG_SYMBOL_EXPANDED";
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if (f & DEBUG_SYMBOL_READ_ONLY)
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str << "|DEBUG_SYMBOL_READ_ONLY";
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if (f & DEBUG_SYMBOL_IS_ARRAY)
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str << "|DEBUG_SYMBOL_IS_ARRAY";
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if (f & DEBUG_SYMBOL_IS_FLOAT)
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str << "|DEBUG_SYMBOL_IS_FLOAT";
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if (f & DEBUG_SYMBOL_IS_ARGUMENT)
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str << "|DEBUG_SYMBOL_IS_ARGUMENT";
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if (f & DEBUG_SYMBOL_IS_LOCAL)
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str << "|DEBUG_SYMBOL_IS_LOCAL";
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}
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QTextStream &operator<<(QTextStream &str, const DEBUG_SYMBOL_PARAMETERS &p)
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{
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str << " Type=" << p.TypeId << " parent=";
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if (isTopLevelSymbol(p)) {
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str << "<ROOT>";
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} else {
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str << p.ParentSymbol;
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}
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str << " Subs=" << p.SubElements << " flags=" << p.Flags << '/';
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debugSymbolFlags(p.Flags, str);
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return str;
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}
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static inline ULONG64 symbolOffset(CIDebugSymbolGroup *sg, unsigned long index)
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{
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ULONG64 rc = 0;
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if (FAILED(sg->GetSymbolOffset(index, &rc)))
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rc = 0;
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return rc;
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}
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// A helper function to extract a string value from a member function of
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// IDebugSymbolGroup2 taking the symbol index and a character buffer.
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// Pass in the the member function as '&IDebugSymbolGroup2::GetSymbolNameWide'
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typedef HRESULT (__stdcall IDebugSymbolGroup2::*WideStringRetrievalFunction)(ULONG, PWSTR, ULONG, PULONG);
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static inline QString getSymbolString(IDebugSymbolGroup2 *sg,
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WideStringRetrievalFunction wsf,
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unsigned long index)
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{
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// Template type names can get quite long....
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enum { BufSize = 1024 };
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static WCHAR nameBuffer[BufSize + 1];
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// Name
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ULONG nameLength;
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const HRESULT hr = (sg->*wsf)(index, nameBuffer, BufSize, &nameLength);
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if (SUCCEEDED(hr)) {
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nameBuffer[nameLength] = 0;
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return QString::fromUtf16(reinterpret_cast<const ushort *>(nameBuffer));
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}
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return QString();
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}
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namespace CdbCore {
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static inline SymbolGroupContext::SymbolState getSymbolState(const DEBUG_SYMBOL_PARAMETERS &p)
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{
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if (p.SubElements == 0u)
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return SymbolGroupContext::LeafSymbol;
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return (p.Flags & DEBUG_SYMBOL_EXPANDED) ?
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SymbolGroupContext::ExpandedSymbol :
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SymbolGroupContext::CollapsedSymbol;
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}
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SymbolGroupContext::SymbolGroupContext(const QString &prefix,
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CIDebugSymbolGroup *symbolGroup,
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CIDebugDataSpaces *dataSpaces,
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const QStringList &uninitializedVariables) :
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m_prefix(prefix),
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m_nameDelimiter(QLatin1Char('.')),
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m_uninitializedVariables(uninitializedVariables.toSet()),
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m_symbolGroup(symbolGroup),
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m_dataSpaces(dataSpaces),
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m_unnamedSymbolNumber(1),
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m_shadowedNameFormat(QLatin1String("%1#%2"))
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{
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}
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SymbolGroupContext::~SymbolGroupContext()
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{
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m_symbolGroup->Release();
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}
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SymbolGroupContext *SymbolGroupContext::create(const QString &prefix,
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CIDebugSymbolGroup *symbolGroup,
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CIDebugDataSpaces *dataSpaces,
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const QStringList &uninitializedVariables,
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QString *errorMessage)
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{
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SymbolGroupContext *rc = new SymbolGroupContext(prefix, symbolGroup, dataSpaces, uninitializedVariables);
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if (!rc->init(errorMessage)) {
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delete rc;
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return 0;
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}
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return rc;
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}
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bool SymbolGroupContext::init(QString *errorMessage)
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{
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// retrieve the root symbols
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ULONG count;
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HRESULT hr = m_symbolGroup->GetNumberSymbols(&count);
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if (FAILED(hr)) {
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*errorMessage = CdbCore::msgComFailed("GetNumberSymbols", hr);
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return false;
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}
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if (count) {
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m_symbolParameters.reserve(3u * count);
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m_symbolParameters.resize(count);
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hr = m_symbolGroup->GetSymbolParameters(0, count, symbolParameters());
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if (FAILED(hr)) {
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*errorMessage = QString::fromLatin1("In %1: %2 (%3 symbols)").arg(QLatin1String(Q_FUNC_INFO),
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CdbCore::msgComFailed("GetSymbolParameters", hr)).arg(count);
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return false;
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}
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populateINameIndexMap(m_prefix, DEBUG_ANY_ID, count);
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}
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if (debug)
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qDebug() << Q_FUNC_INFO << '\n'<< debugToString();
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return true;
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}
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QString SymbolGroupContext::shadowedNameFormat() const
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{
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return m_shadowedNameFormat;
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}
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void SymbolGroupContext::setShadowedNameFormat(const QString &f)
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{
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m_shadowedNameFormat = f;
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}
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/* Make the entries for iname->index mapping. We might encounter
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* already expanded subitems when doing it for top-level ('this'-pointers),
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* recurse in that case, (skip over expanded children).
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* Loop backwards to detect shadowed variables in the order the
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/* debugger expects them:
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\code
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int x; // Occurrence (1), should be reported as "x <shadowed 1>"
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if (true) {
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int x = 5; (2) // Occurrence (2), should be reported as "x"
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}
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\endcode
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* The order in the symbol group is (1),(2). Give them an iname of
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* <root>#<shadowed-nr>, which will be split apart for display. */
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void SymbolGroupContext::populateINameIndexMap(const QString &prefix, unsigned long parentId,
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unsigned long end)
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{
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const QString symbolPrefix = prefix + m_nameDelimiter;
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if (debug)
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qDebug() << Q_FUNC_INFO << '\n'<< symbolPrefix << parentId << end;
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for (unsigned long i = end - 1; ; i--) {
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const DEBUG_SYMBOL_PARAMETERS &p = m_symbolParameters.at(i);
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if (parentId == p.ParentSymbol) {
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// "__formal" occurs when someone writes "void foo(int /* x */)..."
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static const QString unnamedFormalParameter = QLatin1String("__formal");
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QString symbolName = getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolNameWide, i);
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if (symbolName == unnamedFormalParameter) {
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symbolName = QLatin1String("<unnamed");
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symbolName += QString::number(m_unnamedSymbolNumber++);
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symbolName += QLatin1Char('>');
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} else {
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// Trigger numeric sorting for arrays "local.[22]" -> "local.22"
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if (symbolName.startsWith(QLatin1Char('[')) && symbolName.endsWith(QLatin1Char(']'))) {
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symbolName.truncate(symbolName.size() - 1);
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symbolName.remove(0, 1);
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}
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}
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// Find a unique name in case the variable is shadowed by
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// an existing one
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const QString namePrefix = symbolPrefix + symbolName;
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QString name = namePrefix;
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for (int n = 1; m_inameIndexMap.contains(name); n++) {
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name.truncate(namePrefix.size());
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name += QLatin1Char(iNameShadowDelimiter);
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name += QString::number(n);
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}
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m_inameIndexMap.insert(name, i);
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if (getSymbolState(p) == ExpandedSymbol)
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populateINameIndexMap(name, i, i + 1 + p.SubElements);
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}
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if (i == 0 || i == parentId)
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break;
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}
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}
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QString SymbolGroupContext::toString()
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{
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QString rc;
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QTextStream str(&rc);
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const unsigned long count = m_symbolParameters.size();
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QString iname;
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QString name;
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ULONG64 addr;
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ULONG typeId;
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QString typeName;
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QString value;
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for (unsigned long i = 0; i < count; i++) {
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const unsigned rc = dumpValue(i, &iname, &name, &addr,
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&typeId, &typeName, &value);
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str << iname << ' ' << name << ' ' << typeName << " (" << typeId
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<< ") '" << value;
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str.setIntegerBase(16);
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str << "' 0x" << addr << " flags: 0x" <<rc << '\n';
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str.setIntegerBase(10);
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} // for
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return rc;
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}
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QString SymbolGroupContext::debugToString(bool verbose) const
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{
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QString rc;
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QTextStream str(&rc);
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const int count = m_symbolParameters.size();
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for (int i = 0; i < count; i++) {
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str << i << ' ';
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const DEBUG_SYMBOL_PARAMETERS &p = m_symbolParameters.at(i);
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if (!isTopLevelSymbol(p))
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str << " ";
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str << getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolNameWide, i);
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if (p.Flags & DEBUG_SYMBOL_IS_LOCAL)
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str << " '" << getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolTypeNameWide, i) << '\'';
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str << " Address: " << symbolOffset(m_symbolGroup, i);
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if (verbose)
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str << " '" << getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolValueTextWide, i) << '\'';
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str << p << '\n';
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}
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if (verbose) {
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str << "NameIndexMap\n";
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NameIndexMap::const_iterator ncend = m_inameIndexMap.constEnd();
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for (NameIndexMap::const_iterator it = m_inameIndexMap.constBegin() ; it != ncend; ++it)
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str << it.key() << ' ' << it.value() << '\n';
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}
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return rc;
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}
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SymbolGroupContext::SymbolState SymbolGroupContext::symbolState(unsigned long index) const
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{
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return getSymbolState(m_symbolParameters.at(index));
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}
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SymbolGroupContext::SymbolState SymbolGroupContext::symbolState(const QString &prefix) const
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{
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if (prefix == m_prefix) // root
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return ExpandedSymbol;
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unsigned long index;
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if (!lookupPrefix(prefix, &index)) {
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qWarning("WARNING %s: %s\n", Q_FUNC_INFO, qPrintable(msgSymbolNotFound(prefix)));
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return LeafSymbol;
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}
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return symbolState(index);
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}
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// Find index of a prefix
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bool SymbolGroupContext::lookupPrefix(const QString &prefix, unsigned long *index) const
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{
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*index = 0;
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const NameIndexMap::const_iterator it = m_inameIndexMap.constFind(prefix);
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if (it == m_inameIndexMap.constEnd())
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return false;
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*index = it.value();
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return true;
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}
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/* Retrieve children and get the position. */
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bool SymbolGroupContext::getChildSymbolsPosition(const QString &prefix,
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unsigned long *start,
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unsigned long *parentId,
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QString *errorMessage)
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{
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if (debug)
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qDebug() << Q_FUNC_INFO << '\n'<< prefix;
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*start = *parentId = 0;
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// Root item?
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if (prefix == m_prefix) {
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*start = 0;
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*parentId = DEBUG_ANY_ID;
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if (debug)
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qDebug() << '<' << prefix << "at" << *start;
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return true;
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}
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// Get parent index, make sure it is expanded
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NameIndexMap::const_iterator nit = m_inameIndexMap.constFind(prefix);
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if (nit == m_inameIndexMap.constEnd()) {
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*errorMessage = QString::fromLatin1("'%1' not found.").arg(prefix);
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return false;
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}
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*parentId = nit.value();
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*start = nit.value() + 1;
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if (!expandSymbol(prefix, *parentId, errorMessage))
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return false;
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if (debug)
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qDebug() << '<' << prefix << "at" << *start;
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return true;
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}
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static inline QString msgExpandFailed(const QString &prefix, unsigned long index, const QString &why)
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{
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return QString::fromLatin1("Unable to expand '%1' %2: %3").arg(prefix).arg(index).arg(why);
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}
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// Expand a symbol using the symbol group interface.
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bool SymbolGroupContext::expandSymbol(const QString &prefix, unsigned long index, QString *errorMessage)
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{
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if (debug)
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qDebug() << '>' << Q_FUNC_INFO << '\n' << prefix << index;
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switch (symbolState(index)) {
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case LeafSymbol:
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*errorMessage = QString::fromLatin1("Attempt to expand leaf node '%1' %2!").arg(prefix).arg(index);
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return false;
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case ExpandedSymbol:
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return true;
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case CollapsedSymbol:
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break;
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}
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HRESULT hr = m_symbolGroup->ExpandSymbol(index, TRUE);
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if (FAILED(hr)) {
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*errorMessage = msgExpandFailed(prefix, index, CdbCore::msgComFailed("ExpandSymbol", hr));
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return false;
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}
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// Hopefully, this will never fail, else data structure will be foobar.
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const ULONG oldSize = m_symbolParameters.size();
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ULONG newSize;
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hr = m_symbolGroup->GetNumberSymbols(&newSize);
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if (FAILED(hr)) {
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*errorMessage = msgExpandFailed(prefix, index, CdbCore::msgComFailed("GetNumberSymbols", hr));
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return false;
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}
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// Retrieve the new parameter structs which will be inserted
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// after the parents, offsetting consecutive indexes.
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m_symbolParameters.resize(newSize);
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hr = m_symbolGroup->GetSymbolParameters(0, newSize, symbolParameters());
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if (FAILED(hr)) {
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*errorMessage = msgExpandFailed(prefix, index, CdbCore::msgComFailed("GetSymbolParameters", hr));
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return false;
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}
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// The new symbols are inserted after the parent symbol.
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// We need to correct the following values in the name->index map
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const unsigned long newSymbolCount = newSize - oldSize;
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const NameIndexMap::iterator nend = m_inameIndexMap.end();
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for (NameIndexMap::iterator it = m_inameIndexMap.begin(); it != nend; ++it)
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if (it.value() > index)
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it.value() += newSymbolCount;
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// insert the new symbols
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populateINameIndexMap(prefix, index, index + 1 + newSymbolCount);
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if (debug > 1)
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qDebug() << '<' << Q_FUNC_INFO << '\n' << prefix << index << '\n' << toString();
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return true;
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}
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void SymbolGroupContext::clear()
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{
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m_symbolParameters.clear();
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m_inameIndexMap.clear();
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}
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QString SymbolGroupContext::symbolINameAt(unsigned long index) const
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{
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return m_inameIndexMap.key(index);
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}
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// Return hexadecimal pointer value from a CDB pointer value
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// which look like "0x000032a" or "0x00000000`0250124a" or
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// "0x1`0250124a" on 64-bit systems.
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bool SymbolGroupContext::getUnsignedHexValue(QString stringValue, quint64 *value,
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int *endPos /* = 0 */)
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{
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if (endPos)
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*endPos = -1;
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*value = 0;
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if (!stringValue.startsWith(QLatin1String("0x")))
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return false;
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// Chop off character values (0x76 'a') and return right end position
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const int blankPos = stringValue.indexOf(QLatin1Char(' '));
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if (endPos)
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*endPos = blankPos != -1 ? blankPos : stringValue.size();
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if (blankPos != -1)
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stringValue.truncate(blankPos);
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stringValue.remove(0, 2); // Remove '0x', as checked above
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// Remove 64bit separator
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if (stringValue.size() > 9) {
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if (stringValue.at(8) == QLatin1Char('`'))
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stringValue.remove(8, 1);
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}
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bool ok;
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*value = stringValue.toULongLong(&ok, 16);
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return ok;
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}
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// Return the format specification of a '0x..', '0n..'
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// integer specification or '0' if there is none.
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inline char intFormatSpecification(const QString &stringValue)
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{
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if (stringValue.size() > 2) {
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const QChar format = stringValue.at(1);
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if (!format.isDigit())
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return format.toLatin1();
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}
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return char(0);
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}
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QVariant SymbolGroupContext::getIntValue(const QString &stringValue)
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{
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// Is this a "0x<hex'hex>", "0n<decimal>" or something
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switch (intFormatSpecification(stringValue)) {
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case 'x': { // Hex unsigned
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quint64 uvalue;
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if (SymbolGroupContext::getUnsignedHexValue(stringValue, &uvalue))
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|
return QVariant(uvalue);
|
|
}
|
|
break;
|
|
case '\0': // Decimal or none
|
|
case 'n': {
|
|
qint64 nvalue;
|
|
if (SymbolGroupContext::getDecimalIntValue(stringValue, &nvalue))
|
|
return QVariant(nvalue);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
qWarning("CDB: Integer conversion failed for '%s'.", qPrintable(stringValue));
|
|
return QVariant();
|
|
}
|
|
|
|
// check for "0x000", "0x000 class X" or its 64-bit equivalents.
|
|
bool SymbolGroupContext::isNullPointer(const QString &type , QString valueS)
|
|
{
|
|
if (!type.endsWith(QLatin1String(" *")))
|
|
return false;
|
|
const int blankPos = valueS.indexOf(QLatin1Char(' '));
|
|
if (blankPos != -1)
|
|
valueS.truncate(blankPos);
|
|
quint64 value;
|
|
return SymbolGroupContext::getUnsignedHexValue(valueS, &value) && value == 0u;
|
|
}
|
|
|
|
// Fix a symbol group value. It is set to the class type for
|
|
// expandable classes (type="class std::foo<..>[*]",
|
|
// value="std::foo<...>[*]". This is not desired
|
|
// as it widens the value column for complex std::template types.
|
|
// Remove the inner template type.
|
|
|
|
QString SymbolGroupContext::removeInnerTemplateType(QString value)
|
|
{
|
|
const int firstBracketPos = value.indexOf(QLatin1Char('<'));
|
|
const int lastBracketPos = firstBracketPos != -1 ? value.lastIndexOf(QLatin1Char('>')) : -1;
|
|
if (lastBracketPos != -1)
|
|
value.replace(firstBracketPos + 1, lastBracketPos - firstBracketPos -1, QLatin1String("..."));
|
|
return value;
|
|
}
|
|
|
|
QString SymbolGroupContext::formatShadowedName(const QString &name, int n) const
|
|
{
|
|
return n > 0 ? m_shadowedNameFormat.arg(name).arg(n) : name;
|
|
}
|
|
|
|
unsigned SymbolGroupContext::dumpValueRaw(unsigned long index,
|
|
QString *inameIn,
|
|
QString *nameIn,
|
|
ULONG64 *addrIn,
|
|
ULONG *typeIdIn,
|
|
QString *typeNameIn,
|
|
QString *valueIn) const
|
|
{
|
|
unsigned rc = 0;
|
|
const QString iname = symbolINameAt(index);
|
|
*inameIn = iname;
|
|
*addrIn = symbolOffset(m_symbolGroup, index);
|
|
// Determine name from iname and format shadowed variables correctly
|
|
// as "<shadowed X>, see populateINameIndexMap() (from "name#1").
|
|
const int lastDelimiterPos = iname.lastIndexOf(m_nameDelimiter);
|
|
QString name = lastDelimiterPos == -1 ? iname : iname.mid(lastDelimiterPos + 1);
|
|
int shadowedNumber = 0;
|
|
const int shadowedPos = name.lastIndexOf(QLatin1Char(iNameShadowDelimiter));
|
|
if (shadowedPos != -1) {
|
|
shadowedNumber = name.mid(shadowedPos + 1).toInt();
|
|
name.truncate(shadowedPos);
|
|
}
|
|
// For class hierarchies, we get sometimes complicated std::template types here.
|
|
// (std::map extends std::tree<>... Remove them for display only.
|
|
*nameIn = formatShadowedName(removeInnerTemplateType(name), shadowedNumber);
|
|
*typeNameIn = getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolTypeNameWide, index);
|
|
// Check for uninitialized variables at level 0 only.
|
|
const DEBUG_SYMBOL_PARAMETERS &p = m_symbolParameters.at(index);
|
|
*typeIdIn = p.TypeId;
|
|
if (p.ParentSymbol == DEBUG_ANY_ID) {
|
|
const QString fullShadowedName = formatShadowedName(name, shadowedNumber);
|
|
if (m_uninitializedVariables.contains(fullShadowedName)) {
|
|
rc |= OutOfScope;
|
|
valueIn->clear();
|
|
return rc;
|
|
}
|
|
}
|
|
// In scope: Figure out value
|
|
*valueIn = getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolValueTextWide, index);
|
|
// Figure out children. The SubElement is only a guess unless the symbol,
|
|
// is expanded, so, we leave this as a guess for later updates.
|
|
// If the symbol has children (expanded or not), we leave the 'Children' flag
|
|
// in 'needed' state. Suppress 0-pointers right ("0x000 class X")
|
|
// here as they only lead to children with memory access errors.
|
|
if (p.SubElements && !isNullPointer(*typeNameIn, *valueIn))
|
|
rc |= HasChildren;
|
|
return rc;
|
|
}
|
|
|
|
/* The special type dumpers have an integer return code meaning:
|
|
* 0: ok
|
|
* 1: Dereferencing or retrieving memory failed, this is out of scope,
|
|
* do not try to query further.
|
|
* > 1: A structural error was encountered, that is, the implementation
|
|
* of the class changed (Qt or say, a different STL implementation).
|
|
* Visibly warn about it.
|
|
* To add further types, have a look at the toString() output of the
|
|
* symbol group. */
|
|
|
|
static QString msgStructuralError(const QString &name, const QString &type, int code)
|
|
{
|
|
return QString::fromLatin1("Warning: Internal dumper for '%1' (%2) failed with %3.").arg(name, type).arg(code);
|
|
}
|
|
|
|
static inline bool isStdStringOrPointer(const QString &type)
|
|
{
|
|
#define STD_WSTRING "std::basic_string<unsigned short,std::char_traits<unsigned short>,std::allocator<unsigned short> >"
|
|
#define STD_STRING "std::basic_string<char,std::char_traits<char>,std::allocator<char> >"
|
|
return type.endsWith(QLatin1String(STD_STRING))
|
|
|| type.endsWith(QLatin1String(STD_STRING" *"))
|
|
|| type.endsWith(QLatin1String(STD_WSTRING))
|
|
|| type.endsWith(QLatin1String(STD_WSTRING" *"));
|
|
#undef STD_WSTRING
|
|
#undef STD_STRING
|
|
}
|
|
|
|
unsigned SymbolGroupContext::dumpValue(unsigned long index,
|
|
QString *inameIn,
|
|
QString *nameIn,
|
|
ULONG64 *addrIn,
|
|
ULONG *typeIdIn,
|
|
QString *typeNameIn,
|
|
QString *valueIn)
|
|
{
|
|
unsigned rc = dumpValueRaw(index, inameIn, nameIn, addrIn, typeIdIn,
|
|
typeNameIn, valueIn);
|
|
do {
|
|
// Is this a previously detected Null-Pointer or out of scope
|
|
if ( (rc & OutOfScope) || !(rc & HasChildren) )
|
|
break;
|
|
// QString
|
|
if (typeNameIn->endsWith(QLatin1String("QString")) || typeNameIn->endsWith(QLatin1String("QString *"))) {
|
|
const int drc = dumpQString(index, *inameIn, valueIn);
|
|
switch (drc) {
|
|
case 0:
|
|
rc |= InternalDumperSucceeded;
|
|
rc &= ~HasChildren;
|
|
break;
|
|
case 1:
|
|
rc |= InternalDumperError;
|
|
break;
|
|
default:
|
|
rc |= InternalDumperFailed;
|
|
qWarning("%s\n", qPrintable(msgStructuralError(*inameIn, *typeNameIn, drc)));
|
|
break;
|
|
}
|
|
}
|
|
// StdString
|
|
if (isStdStringOrPointer(*typeNameIn)) {
|
|
const int drc = dumpStdString(index, *inameIn, valueIn);
|
|
switch (drc) {
|
|
case 0:
|
|
rc |= InternalDumperSucceeded;
|
|
rc &= ~HasChildren;
|
|
break;
|
|
case 1:
|
|
rc |= InternalDumperError;
|
|
break;
|
|
default:
|
|
rc |= InternalDumperFailed;
|
|
qWarning("%s\n", qPrintable(msgStructuralError(*inameIn, *typeNameIn, drc)));
|
|
break;
|
|
}
|
|
|
|
}
|
|
} while (false);
|
|
if (debugInternalDumpers) {
|
|
QString msg;
|
|
QTextStream str(&msg);
|
|
str.setIntegerBase(16);
|
|
str << "SymbolGroupContext::dump rc=0x" << rc;
|
|
str.setIntegerBase(10);
|
|
str << " Type='" << *typeNameIn;
|
|
str << " (" << *typeIdIn << ") Name='" << *nameIn << "' Value='" << *valueIn << '\'';
|
|
qDebug("%s", qPrintable(msg));
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
bool SymbolGroupContext::getDecimalIntValue(QString stringValue, qint64 *value)
|
|
{
|
|
// Strip '0n<digits>' format specifier that occurs
|
|
// with Debugging tools v6.12 or later
|
|
if (stringValue.startsWith(QLatin1String("0n")))
|
|
stringValue.remove(0, 2);
|
|
// Chop off character values (0n97 'a')
|
|
const int blankPos = stringValue.indexOf(QLatin1Char(' '));
|
|
if (blankPos != -1)
|
|
stringValue.truncate(blankPos);
|
|
bool ok;
|
|
*value = stringValue.toInt(&ok);
|
|
return ok;
|
|
}
|
|
|
|
// Get integer value of symbol group
|
|
static inline bool getSG_DecimalIntValue(CIDebugSymbolGroup *sg, int index, qint64 *value)
|
|
{
|
|
const QString valueS = getSymbolString(sg, &IDebugSymbolGroup2::GetSymbolValueTextWide, index);
|
|
return SymbolGroupContext::getDecimalIntValue(valueS, value);
|
|
}
|
|
|
|
// Get pointer value of symbol group ("0xAAB")
|
|
// Note that this is on "00000000`0250124a" on 64bit systems.
|
|
static inline bool getSG_UnsignedHexValue(CIDebugSymbolGroup *sg, int index, quint64 *value)
|
|
{
|
|
const QString stringValue = getSymbolString(sg, &IDebugSymbolGroup2::GetSymbolValueTextWide, index);
|
|
return SymbolGroupContext::getUnsignedHexValue(stringValue, value);
|
|
}
|
|
|
|
enum { maxStringLength = 4096 };
|
|
|
|
int SymbolGroupContext::dumpQString(unsigned long index,
|
|
const QString &iname,
|
|
QString *valueIn)
|
|
{
|
|
valueIn->clear();
|
|
QString errorMessage;
|
|
// Expand string and it's "d" (step over 'static null')
|
|
if (!expandSymbol(iname, index, &errorMessage))
|
|
return 2;
|
|
const unsigned long dIndex = index + 4;
|
|
if (!expandSymbol(iname, dIndex, &errorMessage))
|
|
return 3;
|
|
const unsigned long sizeIndex = dIndex + 3;
|
|
const unsigned long arrayIndex = dIndex + 4;
|
|
// Get size and pointer
|
|
qint64 size;
|
|
if (!getSG_DecimalIntValue(m_symbolGroup, sizeIndex, &size))
|
|
return 4;
|
|
quint64 array;
|
|
if (!getSG_UnsignedHexValue(m_symbolGroup, arrayIndex, &array))
|
|
return 5;
|
|
// Fetch
|
|
const bool truncated = size > maxStringLength;
|
|
if (truncated)
|
|
size = maxStringLength;
|
|
const QChar doubleQuote = QLatin1Char('"');
|
|
if (size > 0) {
|
|
valueIn->append(doubleQuote);
|
|
// Should this ever be a remote debugger, need to check byte order.
|
|
unsigned short *buf = new unsigned short[size + 1];
|
|
unsigned long bytesRead;
|
|
const HRESULT hr = m_dataSpaces->ReadVirtual(array, buf, size * ULONG(sizeof(unsigned short)), &bytesRead);
|
|
if (FAILED(hr)) {
|
|
delete [] buf;
|
|
return 1;
|
|
}
|
|
buf[bytesRead / sizeof(unsigned short)] = 0;
|
|
valueIn->append(QString::fromUtf16(buf));
|
|
delete [] buf;
|
|
if (truncated)
|
|
valueIn->append(QLatin1String("..."));
|
|
valueIn->append(doubleQuote);
|
|
} else if (size == 0) {
|
|
*valueIn = QString(doubleQuote) + doubleQuote;
|
|
} else {
|
|
*valueIn = QLatin1String("Invalid QString");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int SymbolGroupContext::dumpStdString(unsigned long index,
|
|
const QString &inameIn,
|
|
QString *valueIn)
|
|
|
|
{
|
|
QString errorMessage;
|
|
|
|
// Expand string ->string_val->_bx.
|
|
if (!expandSymbol(inameIn, index, &errorMessage))
|
|
return 1;
|
|
const unsigned long bxIndex = index + 3;
|
|
if (!expandSymbol(inameIn, bxIndex, &errorMessage))
|
|
return 2;
|
|
// Check if size is something sane
|
|
const int sizeIndex = index + 6;
|
|
qint64 size;
|
|
if (!getSG_DecimalIntValue(m_symbolGroup, sizeIndex, &size))
|
|
return 3;
|
|
if (size < 0)
|
|
return 1;
|
|
// Just copy over the value of the buf[]-array, which should be the string
|
|
const QChar doubleQuote = QLatin1Char('"');
|
|
const int bufIndex = index + 4;
|
|
*valueIn = getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolValueTextWide, bufIndex);
|
|
const int quotePos = valueIn->indexOf(doubleQuote);
|
|
if (quotePos == -1)
|
|
return 1;
|
|
valueIn->remove(0, quotePos);
|
|
if (valueIn->size() > maxStringLength) {
|
|
valueIn->truncate(maxStringLength);
|
|
valueIn->append(QLatin1String("...\""));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
bool SymbolGroupContext::assignValue(const QString &iname, const QString &value,
|
|
QString *newValue, QString *errorMessage)
|
|
{
|
|
if (debug)
|
|
qDebug() << Q_FUNC_INFO << '\n' << iname << value;
|
|
const NameIndexMap::const_iterator it = m_inameIndexMap.constFind(iname);
|
|
if (it == m_inameIndexMap.constEnd()) {
|
|
*errorMessage = msgSymbolNotFound(iname);
|
|
return false;
|
|
}
|
|
const unsigned long index = it.value();
|
|
const HRESULT hr = m_symbolGroup->WriteSymbolWide(index, reinterpret_cast<PCWSTR>(value.utf16()));
|
|
if (FAILED(hr)) {
|
|
*errorMessage = QString::fromLatin1("Unable to assign '%1' to '%2': %3").
|
|
arg(value, iname, CdbCore::msgComFailed("WriteSymbolWide", hr));
|
|
return false;
|
|
}
|
|
if (newValue)
|
|
*newValue = getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolValueTextWide, index);
|
|
return true;
|
|
}
|
|
|
|
} // namespace CdbCore
|