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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 "cdbassembler.h"
#include "cdbdebugoutput.h"
#include "cdbdebugengine_p.h"
#include "cdbsymbolgroupcontext.h"
#include "registerhandler.h"
#include <QtCore/QVector>
// Format a hex address with a given field width if possible. Convert
// to number to ensure it is not truncated should it be larger than the
// field width. Check the 64 bit address format '00000001`40002c84'
static inline void formatAddress(QTextStream &str, QString hexAddressS, int fieldWidth)
{
if (hexAddressS.size() > 9) {
const int sepPos = hexAddressS.size() - 9;
if (hexAddressS.at(sepPos) == QLatin1Char('`'))
hexAddressS.remove(sepPos, 1);
}
const QChar oldPadChar = str.padChar();
const int oldFieldWidth = str.fieldWidth();
const int oldIntegerBase = str.integerBase();
str.setFieldWidth(fieldWidth);
str.setPadChar(QLatin1Char('0'));
str.setIntegerBase(16);
str << hexAddressS.toULongLong(0, 16);
str.setFieldWidth(oldFieldWidth);
str.setPadChar(oldPadChar);
str.setIntegerBase(oldIntegerBase);
}
namespace Debugger {
namespace Internal {
bool getRegisters(CIDebugControl *ctl,
CIDebugRegisters *ireg,
QList<Register> *registers,
QString *errorMessage, int base)
{
registers->clear();
ULONG count;
HRESULT hr = ireg->GetNumberRegisters(&count);
if (FAILED(hr)) {
*errorMessage= CdbCore::msgComFailed("GetNumberRegisters", hr);
return false;
}
if (!count)
return true;
// Retrieve names
WCHAR wszBuf[MAX_PATH];
for (ULONG r = 0; r < count; r++) {
hr = ireg->GetDescriptionWide(r, wszBuf, MAX_PATH - 1, 0, 0);
if (FAILED(hr)) {
*errorMessage= CdbCore::msgComFailed("GetDescriptionWide", hr);
return false;
}
Register reg;
reg.name = QString::fromUtf16(reinterpret_cast<const ushort *>(wszBuf)).toLatin1();
registers->push_back(reg);
}
// get values
QVector<DEBUG_VALUE> values(count);
DEBUG_VALUE *valuesPtr = &(*values.begin());
memset(valuesPtr, 0, count * sizeof(DEBUG_VALUE));
hr = ireg->GetValues(count, 0, 0, valuesPtr);
if (FAILED(hr)) {
*errorMessage= CdbCore::msgComFailed("GetValues", hr);
return false;
}
if (base < 2)
base = 10;
for (ULONG r = 0; r < count; r++)
(*registers)[r].value = CdbCore::debugValueToString(values.at(r), 0, base, ctl);
return true;
}
// Output parser for disassembler lines.
// It uses the source file lines as symbol until it encounters
// a C++ symbol (function entered), from which then on
// it uses that symbol.
class DisassemblerOutputParser
{
Q_DISABLE_COPY(DisassemblerOutputParser)
public:
explicit DisassemblerOutputParser(QTextStream &str, int addressFieldWidth = 0);
void parse(const QStringList &l);
private:
enum ParseResult { ParseOk, ParseIgnore, ParseFailed };
ParseResult parseDisassembled(const QString &in);
const int m_addressFieldWidth;
QTextStream &m_str;
QString m_sourceSymbol;
int m_sourceSymbolOffset;
};
DisassemblerOutputParser::DisassemblerOutputParser(QTextStream &str, int addressFieldWidth) :
m_addressFieldWidth(addressFieldWidth),
m_str(str),
m_sourceSymbolOffset(0)
{
}
/* Parse a disassembler line:
* \code
module!class::foo:
004017cf cc int 3
77 mainwindow.cpp 004018ff 8d4da8 lea ecx,[ebp-0x58]
\endcode */
DisassemblerOutputParser::ParseResult
DisassemblerOutputParser::parseDisassembled(const QString &in)
{
// Check if there is a source file
if (in.size() < 7)
return ParseIgnore;
const bool hasSourceFile = !in.at(6).isSpace();
// Sometimes, empty lines occur
const QString simplified = in.simplified();
if (simplified.isEmpty())
return ParseIgnore;
const QStringList tokens = simplified.split(QLatin1Char(' '), QString::SkipEmptyParts);
const int tokenCount = tokens.size();
// Check for symbols as 'module!class::foo:' (start of function encountered)
// and store as state.
if (tokenCount == 1) {
QString symbol = tokens.front();
if (symbol.endsWith(QLatin1Char(':')) && symbol.contains(QLatin1Char('!'))) {
symbol.truncate(symbol.size() - 1);
m_sourceSymbol = symbol;
m_sourceSymbolOffset = 0;
}
return ParseIgnore;
}
if (tokenCount < 2)
return ParseIgnore;
if (tokenCount < 3)
return ParseFailed;
// Format line. Start with address with the field width given,
// which is important for setting the marker.
const int addressToken = hasSourceFile ? 2 : 0;
m_str << "0x";
if (m_str.fieldWidth() == m_addressFieldWidth) {
m_str << tokens.at(addressToken);
} else {
formatAddress(m_str, tokens.at(addressToken), m_addressFieldWidth);
}
m_str << ' ';
// Symbol display: Do we know a symbol? -> Display with offset.
// Else default to source file information.
if (m_sourceSymbol.isEmpty()) {
if (hasSourceFile)
m_str << tokens.at(1) << '+' << tokens.front();
} else {
m_str << '<' << m_sourceSymbol;
if (m_sourceSymbolOffset)
m_str << '+' << m_sourceSymbolOffset;
m_str << '>';
m_sourceSymbolOffset++;
}
for (int i = addressToken + 1; i < tokenCount; i++)
m_str << ' ' << tokens.at(i);
m_str << '\n';
return ParseOk;
}
void DisassemblerOutputParser::parse(const QStringList &l)
{
foreach(const QString &line, l) {
switch (parseDisassembled(line)) {
case ParseOk:
case ParseIgnore:
break;
case ParseFailed:
qWarning("Failed to parse '%s'\n", qPrintable(line));
break;
}
}
}
bool dissassemble(CdbCore::CoreEngine *engine,
ULONG64 offset,
unsigned long beforeLines,
unsigned long afterLines,
int addressFieldWidth,
QTextStream &str,
QString *errorMessage)
{
if (debugCDB)
qDebug() << Q_FUNC_INFO << offset;
QString lines;
if (!engine->dissassemble(offset, beforeLines, afterLines, &lines, errorMessage))
return false;
DisassemblerOutputParser parser(str, addressFieldWidth);
parser.parse(lines.split(QLatin1Char('\n')));
return true;
}
} // namespace Internal
} // namespace Debugger
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