Alessandro Bonazzi
8c43d5cf2f
Files correlati : cg0.exe cg0700a.msk cg0700b.msk cg3.exe cg4.exe Bug : Commento: Merge 1.0 libraries
251 lines
8.3 KiB
C++
251 lines
8.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the 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 The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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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 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qbic.h"
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#include "QtCore/qfile.h"
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#include "QtCore/qdebug.h"
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void QBic::addBlacklistedClass(const QString &wildcard)
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{
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blackList.append(QRegExp(wildcard, Qt::CaseSensitive, QRegExp::Wildcard));
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}
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void QBic::removeBlacklistedClass(const QString &wildcard)
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{
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blackList.removeAll(QRegExp(wildcard, Qt::CaseSensitive, QRegExp::Wildcard));
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}
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bool QBic::isBlacklisted(const QString &className) const
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{
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// all templates are blacklisted
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if (className.contains('<'))
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return true;
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for (int i = 0; i < blackList.count(); ++i)
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if (blackList.at(i).exactMatch(className))
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return true;
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return false;
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}
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static QStringList normalizedVTable(const QStringList &entry)
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{
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QStringList normalized;
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for (int i = 2; i < entry.count(); ++i) {
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const QString line = entry.at(i).simplified();
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bool isOk = false;
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int num = line.left(line.indexOf(QLatin1Char(' '))).toInt(&isOk);
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if (!isOk) {
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qWarning("unrecognized line: %s", qPrintable(line));
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continue;
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}
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QString sym = line.mid(line.indexOf(QLatin1Char(' ')) + 1);
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if (sym.startsWith(QLatin1Char('('))) {
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if (sym.endsWith(QLatin1Char(')'))) {
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sym = sym.mid(sym.lastIndexOf('(') + 1);
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sym.chop(1);
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} else {
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sym = sym.mid(sym.lastIndexOf(QLatin1Char(')')) + 1);
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}
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} else {
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sym = sym.left(sym.indexOf(QLatin1Char('(')));
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}
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if (sym.startsWith(QLatin1String("& ")))
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sym.remove(1, 1);
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if (sym.startsWith(QLatin1String("-0")) || sym.startsWith(QLatin1String("0"))) {
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if (sym.endsWith('u'))
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sym.chop(1);
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bool isOk = false;
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qint64 num = sym.toLongLong(&isOk, 16);
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if (!isOk) {
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qWarning("unrecognized token: %s", qPrintable(sym));
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continue;
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}
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if (sizeof(void*) == 4)
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sym = QString::number(int(num));
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else
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sym = QString::number(num);
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}
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normalized << QString::number(num) + QLatin1Char(' ') + sym;
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}
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return normalized;
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}
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QBic::Info QBic::parseOutput(const QByteArray &ba) const
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{
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Info info;
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const QStringList source = QString::fromLatin1(ba).split("\n\n");
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foreach(QString str, source) {
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QStringList entry = str.split('\n');
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if (entry.count() < 2)
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continue;
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if (entry.at(0).startsWith("Class ")) {
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const QString className = entry.at(0).mid(6);
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if (isBlacklisted(className))
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continue;
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QRegExp rx("size=(\\d+)");
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if (rx.indexIn(entry.at(1)) == -1) {
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qWarning("Could not parse class information for className %s", className.toLatin1().constData());
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continue;
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}
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info.classSizes[className] = rx.cap(1).toInt();
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} else if (entry.at(0).startsWith("Vtable for ")) {
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const QString className = entry.at(0).mid(11);
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if (isBlacklisted(className))
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continue;
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info.classVTables[className] = normalizedVTable(entry);
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}
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}
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return info;
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}
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QBic::Info QBic::parseFile(const QString &fileName) const
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{
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QFile f(fileName);
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if (!f.open(QIODevice::ReadOnly | QIODevice::Text))
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return Info();
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QByteArray ba = f.readAll();
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f.close();
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return parseOutput(ba);
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}
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enum VTableDiffResult { Match, Mismatch, Reimp };
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static VTableDiffResult diffVTableEntry(const QString &v1, const QString &v2)
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{
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if (v1 == v2)
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return Match;
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if (v2.endsWith(QLatin1String("__cxa_pure_virtual")))
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return Reimp;
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if (!v1.contains(QLatin1String("::")) || !v2.contains(QLatin1String("::")))
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return Mismatch;
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const QString sym1 = v1.mid(v1.lastIndexOf(QLatin1String("::")) + 2);
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const QString sym2 = v2.mid(v2.lastIndexOf(QLatin1String("::")) + 2);
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if (sym1 == sym2)
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return Reimp;
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return Mismatch;
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}
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QBic::VTableDiff QBic::diffVTables(const Info &oldLib, const Info &newLib) const
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{
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VTableDiff result;
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for (QHash<QString, QStringList>::const_iterator it = newLib.classVTables.constBegin();
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it != newLib.classVTables.constEnd(); ++it) {
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if (!oldLib.classVTables.contains(it.key())) {
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result.addedVTables.append(it.key());
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continue;
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}
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const QStringList oldVTable = oldLib.classVTables.value(it.key());
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const QStringList vTable = it.value();
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if (vTable.count() != oldVTable.count()) {
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result.modifiedVTables.append(QPair<QString, QString>(it.key(),
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QLatin1String("size mismatch")));
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continue;
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}
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for (int i = 0; i < vTable.count(); ++i) {
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VTableDiffResult diffResult = diffVTableEntry(vTable.at(i), oldVTable.at(i));
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switch (diffResult) {
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case Match:
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// do nothing
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break;
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case Mismatch:
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result.modifiedVTables.append(QPair<QString, QString>(oldVTable.at(i),
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vTable.at(i)));
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break;
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case Reimp:
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result.reimpMethods.append(QPair<QString, QString>(oldVTable.at(i), vTable.at(i)));
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break;
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}
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}
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}
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for (QHash<QString, QStringList>::const_iterator it = oldLib.classVTables.constBegin();
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it != oldLib.classVTables.constEnd(); ++it) {
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if (!newLib.classVTables.contains(it.key()))
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result.removedVTables.append(it.key());
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}
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return result;
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}
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QBic::SizeDiff QBic::diffSizes(const Info &oldLib, const Info &newLib) const
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{
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QBic::SizeDiff result;
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for (QHash<QString, int>::const_iterator it = newLib.classSizes.constBegin();
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it != newLib.classSizes.constEnd(); ++it) {
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if (!oldLib.classSizes.contains(it.key())) {
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result.added.append(it.key());
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continue;
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}
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int oldSize = oldLib.classSizes.value(it.key());
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int newSize = it.value();
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if (oldSize != newSize)
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result.mismatch.append(it.key());
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}
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for (QHash<QString, int>::const_iterator it = oldLib.classSizes.constBegin();
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it != oldLib.classSizes.constEnd(); ++it) {
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if (!newLib.classSizes.contains(it.key()))
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result.removed.append(it.key());
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}
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return result;
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}
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