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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms and
** conditions see http://www.qt.io/terms-conditions. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "disassemblerlines.h"
#include "debuggerstringutils.h"
#include <QDebug>
#include <QFile>
#include <QRegExp>
#include <QTextStream>
namespace Debugger {
namespace Internal {
void DisassemblerLine::fromString(const QString &unparsed)
{
int pos = -1;
for (int i = 0; i != unparsed.size(); ++i) {
const uint c = unparsed.at(i).unicode();
if (c == ' ' || c == ':' || c == '\t') {
pos = i;
break;
}
}
// Mac gdb has an overflow reporting 64bit addresses causing the instruction
// to follow the last digit "0x000000013fff4810mov 1,1". Truncate here.
if (pos > 19 && unparsed.mid(3, 16).toULongLong())
pos = 19;
QString addr = unparsed.left(pos);
// MSVC 64bit: Remove 64bit separator 00000000`00a45000'.
if (addr.size() >= 9 && addr.at(8) == QLatin1Char('`'))
addr.remove(8, 1);
if (addr.endsWith(QLatin1Char(':'))) // clang
addr.chop(1);
if (addr.startsWith(QLatin1String("0x")))
addr.remove(0, 2);
bool ok = false;
address = addr.toULongLong(&ok, 16);
if (ok)
data = unparsed.mid(pos + 1);
else
data = unparsed;
}
quint64 DisassemblerLine::addressFromDisassemblyLine(const QString &line)
{
DisassemblerLine l;
l.fromString(line);
return l.address;
}
quint64 DisassemblerLines::startAddress() const
{
for (int i = 0; i < m_data.size(); ++i)
if (m_data.at(i).address)
return m_data.at(i).address;
return 0;
}
quint64 DisassemblerLines::endAddress() const
{
for (int i = m_data.size()- 1; i >= 0; --i)
if (m_data.at(i).address)
return m_data.at(i).address;
return 0;
}
int DisassemblerLines::lineForAddress(quint64 address) const
{
return m_rowCache.value(address);
}
bool DisassemblerLines::coversAddress(quint64 address) const
{
return m_rowCache.value(address) != 0;
}
void DisassemblerLines::appendLine(const DisassemblerLine &dl)
{
m_data.append(dl);
m_rowCache[dl.address] = m_data.size();
}
// Append source line: Cache current file.
struct SourceFileCache
{
QString fileName;
QStringList lines;
};
Q_GLOBAL_STATIC(SourceFileCache, sourceFileCache)
void DisassemblerLines::appendSourceLine(const QString &fileName, uint lineNumber)
{
if (fileName.isEmpty() || lineNumber == 0)
return;
lineNumber--; // Fix 1..n range.
SourceFileCache *cache = sourceFileCache();
if (fileName != cache->fileName) {
cache->fileName = fileName;
cache->lines.clear();
QFile file(fileName);
if (file.open(QIODevice::ReadOnly)) {
QTextStream ts(&file);
cache->lines = ts.readAll().split(QLatin1Char('\n'));
}
}
if (lineNumber >= uint(cache->lines.size()))
return;
DisassemblerLine dl;
dl.lineNumber = lineNumber;
dl.data = cache->lines.at(lineNumber);
appendLine(dl);
}
void DisassemblerLines::appendComment(const QString &line)
{
DisassemblerLine dl;
dl.data = line;
appendLine(dl);
}
void DisassemblerLines::appendUnparsed(const QString &unparsed)
{
QString line = unparsed.trimmed();
if (line.isEmpty())
return;
if (line.startsWith(QLatin1String("Current language:")))
return;
if (line.startsWith(QLatin1String("Dump of assembler"))) {
m_lastFunction.clear();
return;
}
if (line.startsWith(QLatin1String("The current source")))
return;
if (line.startsWith(QLatin1String("End of assembler"))) {
m_lastFunction.clear();
return;
}
if (line.startsWith(QLatin1String("=> ")))
line = line.mid(3);
if (line.startsWith(QLatin1String("0x"))) {
// Address line. Split at the tab.
int tab1 = line.indexOf(QLatin1Char('\t'));
if (tab1 == -1) {
appendComment(line);
return;
}
int tab2 = line.indexOf(QLatin1Char('\t'), tab1 + 1);
if (tab2 == -1)
tab2 = tab1;
QString address = line.left(tab1);
if (address.endsWith(QLatin1Char(':')))
address.chop(1);
int pos1 = address.indexOf(QLatin1Char('<')) + 1;
DisassemblerLine dl;
dl.bytes = line.mid(tab1, tab2 - tab1).trimmed();
m_bytesLength = qMax(m_bytesLength, tab2 - tab1);
dl.data = line.mid(tab2).trimmed();
if (pos1 && address.indexOf(QLatin1String("<UNDEFINED> instruction:")) == -1) {
if (address.endsWith(QLatin1Char('>')))
address.chop(1);
int pos2 = address.indexOf(QLatin1Char('+'), pos1);
if (pos1 < pos2) {
QString function = address.mid(pos1, pos2 - pos1);
if (function != m_lastFunction) {
DisassemblerLine dl;
dl.data = _("Function: ") + function;
m_data.append(dl);
m_lastFunction = function;
}
}
dl.address = address.left(pos1 - 1).toULongLong(0, 0);
dl.function = m_lastFunction;
dl.offset = address.mid(pos2).toUInt();
} else {
// Plain data like "0x0000cd64:\tadd\tlr, pc, lr\n"
dl.address = address.toULongLong(0, 0);
dl.function = m_lastFunction;
dl.offset = 0;
}
m_rowCache[dl.address] = m_data.size() + 1;
m_data.append(dl);
} else {
// Comment or code line.
QTextStream ts(&line);
DisassemblerLine dl;
ts >> dl.lineNumber;
dl.data = line.mid(ts.pos());
m_data.append(dl);
}
}
QString DisassemblerLine::toString(int maxOp) const
{
const QString someSpace = _(" ");
QString str;
if (isAssembler()) {
if (address)
str += _("0x%1 ").arg(address, 0, 16);
if (offset)
str += _("<+0x%2> ").arg(offset, 4, 16, QLatin1Char('0'));
else
str += _(" ");
str += _(" %1 ").arg(bytes);
str += QString(maxOp - bytes.size(), QLatin1Char(' '));
str += data;
} else if (isCode()) {
str += someSpace;
str += QString::number(lineNumber);
if (hunk)
str += _(" [%1]").arg(hunk);
else
str += _(" ").arg(hunk);
str += data;
} else {
str += someSpace;
str += data;
}
return str;
}
QString DisassemblerLines::toString() const
{
QString str;
for (int i = 0, n = size(); i != n; ++i) {
str += m_data.at(i).toString(m_bytesLength);
str += QLatin1Char('\n');
}
return str;
}
} // namespace Internal
} // namespace Debugger
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