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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the test suite of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 |
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43 #include "qbic.h" |
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44 |
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45 #include "QtCore/qfile.h" |
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46 #include "QtCore/qdebug.h" |
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47 |
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48 void QBic::addBlacklistedClass(const QString &wildcard) |
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49 { |
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50 blackList.append(QRegExp(wildcard, Qt::CaseSensitive, QRegExp::Wildcard)); |
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51 } |
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52 |
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53 void QBic::removeBlacklistedClass(const QString &wildcard) |
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54 { |
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55 blackList.removeAll(QRegExp(wildcard, Qt::CaseSensitive, QRegExp::Wildcard)); |
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56 } |
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57 |
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58 bool QBic::isBlacklisted(const QString &className) const |
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59 { |
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60 for (int i = 0; i < blackList.count(); ++i) |
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61 if (blackList.at(i).exactMatch(className)) |
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62 return true; |
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63 return false; |
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64 } |
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65 |
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66 static QStringList normalizedVTable(const QStringList &entry) |
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67 { |
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68 QStringList normalized; |
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69 |
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70 for (int i = 2; i < entry.count(); ++i) { |
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71 const QString line = entry.at(i).simplified(); |
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72 bool isOk = false; |
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73 int num = line.left(line.indexOf(QLatin1Char(' '))).toInt(&isOk); |
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74 if (!isOk) { |
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75 qWarning("unrecognized line: %s", qPrintable(line)); |
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76 continue; |
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77 } |
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78 |
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79 QString sym = line.mid(line.indexOf(QLatin1Char(' ')) + 1); |
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80 if (sym.startsWith(QLatin1Char('('))) { |
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81 if (sym.endsWith(QLatin1Char(')'))) { |
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82 sym = sym.mid(sym.lastIndexOf('(') + 1); |
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83 sym.chop(1); |
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84 } else { |
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85 sym = sym.mid(sym.lastIndexOf(QLatin1Char(')')) + 1); |
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86 } |
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87 } else { |
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88 sym = sym.left(sym.indexOf(QLatin1Char('('))); |
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89 } |
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90 |
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91 if (sym.startsWith(QLatin1String("& "))) |
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92 sym.remove(1, 1); |
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93 |
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94 if (sym.startsWith(QLatin1String("-0")) || sym.startsWith(QLatin1String("0"))) { |
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95 if (sym.endsWith('u')) |
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96 sym.chop(1); |
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97 |
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98 bool isOk = false; |
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99 qint64 num = sym.toLongLong(&isOk, 16); |
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100 if (!isOk) { |
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101 qWarning("unrecognized token: %s", qPrintable(sym)); |
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102 continue; |
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103 } |
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104 if (sizeof(void*) == 4) |
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105 sym = QString::number(int(num)); |
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106 else |
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107 sym = QString::number(num); |
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108 } |
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109 |
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110 normalized << QString::number(num) + QLatin1Char(' ') + sym; |
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111 } |
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112 |
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113 return normalized; |
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114 } |
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115 |
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116 QBic::Info QBic::parseOutput(const QByteArray &ba) const |
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117 { |
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118 Info info; |
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119 const QStringList source = QString::fromLatin1(ba).split("\n\n"); |
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120 |
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121 foreach(QString str, source) { |
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122 QStringList entry = str.split('\n'); |
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123 if (entry.count() < 2) |
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124 continue; |
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125 if (entry.at(0).startsWith("Class ")) { |
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126 const QString className = entry.at(0).mid(6); |
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127 if (isBlacklisted(className)) |
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128 continue; |
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129 QRegExp rx("size=(\\d+)"); |
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130 if (rx.indexIn(entry.at(1)) == -1) { |
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131 qWarning("Could not parse class information for className %s", className.toLatin1().constData()); |
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132 continue; |
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133 } |
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134 info.classSizes[className] = rx.cap(1).toInt(); |
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135 } else if (entry.at(0).startsWith("Vtable for ")) { |
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136 const QString className = entry.at(0).mid(11); |
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137 if (isBlacklisted(className)) |
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138 continue; |
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139 info.classVTables[className] = normalizedVTable(entry); |
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140 } |
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141 } |
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142 |
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143 return info; |
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144 } |
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145 |
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146 QBic::Info QBic::parseFile(const QString &fileName) const |
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147 { |
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148 QFile f(fileName); |
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149 if (!f.open(QIODevice::ReadOnly | QIODevice::Text)) |
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150 return Info(); |
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151 |
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152 QByteArray ba = f.readAll(); |
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153 f.close(); |
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154 |
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155 return parseOutput(ba); |
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156 } |
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157 |
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158 enum VTableDiffResult { Match, Mismatch, Reimp }; |
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159 static VTableDiffResult diffVTableEntry(const QString &v1, const QString &v2) |
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160 { |
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161 if (v1 == v2) |
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162 return Match; |
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163 if (v2.endsWith(QLatin1String("__cxa_pure_virtual"))) |
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164 return Reimp; |
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165 if (!v1.contains(QLatin1String("::")) || !v2.contains(QLatin1String("::"))) |
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166 return Mismatch; |
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167 |
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168 const QString sym1 = v1.mid(v1.lastIndexOf(QLatin1String("::")) + 2); |
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169 const QString sym2 = v2.mid(v2.lastIndexOf(QLatin1String("::")) + 2); |
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170 |
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171 if (sym1 == sym2) |
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172 return Reimp; |
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173 |
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174 return Mismatch; |
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175 } |
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176 |
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177 QBic::VTableDiff QBic::diffVTables(const Info &oldLib, const Info &newLib) const |
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178 { |
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179 VTableDiff result; |
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180 |
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181 for (QHash<QString, QStringList>::const_iterator it = newLib.classVTables.constBegin(); |
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182 it != newLib.classVTables.constEnd(); ++it) { |
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183 if (!oldLib.classVTables.contains(it.key())) { |
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184 result.addedVTables.append(it.key()); |
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185 continue; |
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186 } |
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187 const QStringList oldVTable = oldLib.classVTables.value(it.key()); |
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188 const QStringList vTable = it.value(); |
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189 if (vTable.count() != oldVTable.count()) { |
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190 result.modifiedVTables.append(QPair<QString, QString>(it.key(), |
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191 QLatin1String("size mismatch"))); |
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192 continue; |
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193 } |
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194 |
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195 for (int i = 0; i < vTable.count(); ++i) { |
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196 VTableDiffResult diffResult = diffVTableEntry(vTable.at(i), oldVTable.at(i)); |
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197 switch (diffResult) { |
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198 case Match: |
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199 // do nothing |
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200 break; |
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201 case Mismatch: |
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202 result.modifiedVTables.append(QPair<QString, QString>(oldVTable.at(i), |
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203 vTable.at(i))); |
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204 break; |
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205 case Reimp: |
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206 result.reimpMethods.append(QPair<QString, QString>(oldVTable.at(i), vTable.at(i))); |
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207 break; |
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208 } |
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209 } |
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210 } |
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211 |
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212 for (QHash<QString, QStringList>::const_iterator it = oldLib.classVTables.constBegin(); |
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213 it != oldLib.classVTables.constEnd(); ++it) { |
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214 if (!newLib.classVTables.contains(it.key())) |
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215 result.removedVTables.append(it.key()); |
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216 } |
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217 |
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218 return result; |
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219 } |
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220 |
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221 QBic::SizeDiff QBic::diffSizes(const Info &oldLib, const Info &newLib) const |
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222 { |
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223 QBic::SizeDiff result; |
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224 |
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225 for (QHash<QString, int>::const_iterator it = newLib.classSizes.constBegin(); |
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226 it != newLib.classSizes.constEnd(); ++it) { |
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227 if (!oldLib.classSizes.contains(it.key())) { |
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228 result.added.append(it.key()); |
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229 continue; |
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230 } |
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231 int oldSize = oldLib.classSizes.value(it.key()); |
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232 int newSize = it.value(); |
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233 |
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234 if (oldSize != newSize) |
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235 result.mismatch.append(it.key()); |
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236 } |
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237 |
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238 for (QHash<QString, int>::const_iterator it = oldLib.classSizes.constBegin(); |
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239 it != oldLib.classSizes.constEnd(); ++it) { |
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240 if (!newLib.classSizes.contains(it.key())) |
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241 result.removed.append(it.key()); |
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242 } |
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243 |
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244 return result; |
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245 } |
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246 |