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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * |
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5 * This program is free software: you can redistribute it and/or modify |
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6 * it under the terms of the GNU Lesser General Public License as published by |
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7 * the Free Software Foundation, either version 3 of the License, or |
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8 * (at your option) any later version. |
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9 * |
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10 * This program is distributed in the hope that it will be useful, |
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 * GNU Lesser General Public License for more details. |
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14 * |
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15 * You should have received a copy of the GNU Lesser General Public License |
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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17 */ |
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18 |
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19 #ifndef ELFSYMBOLTABLEMANAGER_H_ |
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20 #define ELFSYMBOLTABLEMANAGER_H_ |
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21 |
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22 #include <vector> |
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23 #include <cassert> |
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24 |
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25 #include "filefragment.h" |
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26 #include "elfstringtable.h" |
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27 #include "outputfile.h" |
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28 #include "elfheader.h" |
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29 #include "e32romimage.h" |
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30 #include "elfsection.h" |
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31 #include "elfsectionmanager.h" |
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32 #include "defs.h" // String |
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33 |
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34 class ElfSymbolTableManager; |
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35 |
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36 class SectionNumberMapping { |
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37 public: |
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38 SectionNumberMapping(size_t aOld, size_t aNew): |
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39 iOld(aOld), iNew(aNew) |
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40 {} |
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41 |
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42 SectionNumberMapping & operator=(const SectionNumberMapping & aSectionNumberMapping){ |
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43 iOld = aSectionNumberMapping.iOld; |
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44 iNew = aSectionNumberMapping.iNew; |
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45 return *this; |
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46 } |
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47 |
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48 SectionNumberMapping(const SectionNumberMapping & aSectionNumberMapping){ |
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49 *this = aSectionNumberMapping; |
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50 } |
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51 |
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52 size_t iOld; |
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53 size_t iNew; |
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54 }; |
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55 |
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56 typedef std::vector< SectionNumberMapping > SectionNumberMap; |
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57 |
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58 class SectionVaddrAddendMapping { |
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59 public: |
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60 SectionVaddrAddendMapping(size_t aSectionNumber, signed int aAddend): |
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61 iSectionNumber(aSectionNumber), iAddend(aAddend) |
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62 {} |
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63 |
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64 SectionVaddrAddendMapping & operator=(const SectionVaddrAddendMapping & aSectionVaddrAddendMapping){ |
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65 iSectionNumber = aSectionVaddrAddendMapping.iSectionNumber; |
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66 iAddend = aSectionVaddrAddendMapping.iAddend; |
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67 return *this; |
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68 } |
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69 |
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70 SectionVaddrAddendMapping(const SectionVaddrAddendMapping & SectionVaddrAddendMapping){ |
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71 *this = SectionVaddrAddendMapping; |
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72 } |
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73 |
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74 size_t iSectionNumber; |
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75 signed int iAddend; |
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76 }; |
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77 |
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78 typedef std::vector< SectionVaddrAddendMapping > SectionVaddrAddendMap; |
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79 |
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80 class ElfFileSymbolFragments { |
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81 public: |
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82 ElfFileSymbolFragments(ElfSymbolTableManager * aElfSymbolTableManager): |
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83 iPath(""), |
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84 iSymbolTableOffset(0), iSymbolTableSize(0), |
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85 iFirstGlobal(0), |
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86 iStringTableOffset(0), iStringTableSize(0), |
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87 iElfSymbolTableManager(aElfSymbolTableManager) |
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88 { |
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89 iSectionNumberMap.clear(); |
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90 iSectionVaddrAddendMap.clear(); |
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91 } |
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92 |
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93 ElfFileSymbolFragments & operator=(const ElfFileSymbolFragments & aElfFileSymbolFragments){ |
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94 iPath = aElfFileSymbolFragments.iPath; |
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95 iSymbolTableOffset = aElfFileSymbolFragments.iSymbolTableOffset; |
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96 iSymbolTableSize = aElfFileSymbolFragments.iSymbolTableSize; |
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97 iFirstGlobal = aElfFileSymbolFragments.iFirstGlobal; |
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98 iStringTableOffset = aElfFileSymbolFragments.iStringTableOffset; |
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99 iStringTableSize = aElfFileSymbolFragments.iStringTableSize; |
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100 iSectionNumberMap = aElfFileSymbolFragments.iSectionNumberMap; |
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101 iSectionVaddrAddendMap = aElfFileSymbolFragments.iSectionVaddrAddendMap; |
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102 iElfSymbolTableManager = aElfFileSymbolFragments.iElfSymbolTableManager; |
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103 return *this; |
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104 } |
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105 |
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106 ElfFileSymbolFragments(const ElfFileSymbolFragments & aElfFileSymbolFragments){ |
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107 *this = aElfFileSymbolFragments; |
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108 } |
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109 |
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110 |
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111 |
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112 void AddSymbolTable(String & aPath, size_t aOffset, size_t aSize, size_t aFirstGlobal); |
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113 |
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114 void AddStringTable(String & aPath, size_t aOffset, size_t aSize); |
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115 String & GetPath() { return iPath; } |
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116 size_t GetSymbolTableOffset() { return iSymbolTableOffset; } |
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117 size_t GetSymbolTableSize() { return iSymbolTableSize; } |
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118 size_t GetFirstGlobal() { return iFirstGlobal; } |
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119 size_t GetStringTableOffset() { return iStringTableOffset; } |
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120 size_t GetStringTableSize() { return iStringTableSize; } |
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121 |
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122 void SetSectionNumberMap(SectionNumberMap & aSectionNumberMap){ |
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123 iSectionNumberMap = aSectionNumberMap; |
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124 } |
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125 |
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126 size_t LookupSection(size_t ndx); |
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127 |
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128 void SetSectionVaddrAddendMap(SectionVaddrAddendMap & aSectionVaddrAddendMap){ |
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129 iSectionVaddrAddendMap = aSectionVaddrAddendMap; |
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130 } |
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131 |
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132 int LookupVaddrAddend(size_t ndx); |
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133 |
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134 void Validate() { |
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135 assert(iPath.size() != 0); |
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136 assert(iSymbolTableOffset != 0); |
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137 assert(iSymbolTableSize != 0); |
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138 assert(iStringTableOffset != 0); |
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139 assert(iStringTableSize != 0); |
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140 assert(!iSectionNumberMap.empty()); |
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141 assert(!iSectionVaddrAddendMap.empty()); |
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142 } |
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143 |
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144 void Reset(){ |
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145 new (this) ElfFileSymbolFragments(iElfSymbolTableManager); |
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146 } |
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147 |
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148 private: |
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149 String iPath; |
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150 size_t iSymbolTableOffset; |
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151 size_t iSymbolTableSize; |
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152 size_t iFirstGlobal; |
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153 size_t iStringTableOffset; |
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154 size_t iStringTableSize; |
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155 SectionNumberMap iSectionNumberMap; |
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156 SectionVaddrAddendMap iSectionVaddrAddendMap; |
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157 ElfSymbolTableManager * iElfSymbolTableManager; |
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158 |
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159 }; |
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160 |
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161 class ElfSymTabStringTable : public ElfStringTable { |
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162 public: |
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163 ElfSymTabStringTable(ElfSymbolTableManager & aElfSymbolTableManager): |
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164 iElfSymbolTableManager(aElfSymbolTableManager) |
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165 {} |
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166 |
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167 virtual size_t Size(); |
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168 |
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169 private: |
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170 ElfSymbolTableManager & iElfSymbolTableManager; |
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171 }; |
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172 |
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173 class ElfSymbolTableManager : public FileFragmentOwner { |
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174 public: |
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175 ElfSymbolTableManager(Elf32Header & aElf32Header, E32RomImage & aRomImage, |
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176 OutputFile & aOutputFile, ElfSectionManager & aElfSectionManager) : |
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177 iElf32Header(aElf32Header), iRomImage(aRomImage), |
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178 iOutputFile(aOutputFile), iElfSectionManager(aElfSectionManager), |
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179 iData(NULL), |
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180 iSymbolStringTableSizeValid(false), |
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181 iSymbolStringTableSize(0), |
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182 iCurrentFragment(this), |
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183 iStringTable(*this) |
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184 {} |
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185 |
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186 // The FileFragmentOwner protocol |
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187 virtual void GetFileFragmentData(FileFragmentData & aFileFragmentData ); |
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188 virtual size_t Size(); |
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189 virtual void DeleteFileFragmentData(); |
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190 virtual void AddData(OutputFile & aOutputFile); |
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191 |
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192 void AddSymbolTable(String & aPath, size_t aOffset, size_t aSize, size_t aFirstGlobal){ |
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193 iCurrentFragment.AddSymbolTable(aPath, aOffset, aSize, aFirstGlobal); |
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194 } |
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195 void AddStringTable(String & aPath, size_t aOffset, size_t aSize){ |
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196 iCurrentFragment.AddStringTable(aPath, aOffset, aSize); |
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197 |
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198 } |
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199 virtual void AddSymbolFragment(){ |
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200 iSymbolFragments.push_back(iCurrentFragment); |
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201 } |
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202 virtual void AddSymbolTable(); |
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203 |
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204 size_t GetSymTabStringsSectionSize(); |
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205 |
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206 virtual void Finalize(SectionNumberMap & aSectionNumberMap, SectionVaddrAddendMap & aSectionVaddrAddendMap); |
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207 |
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208 private: |
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209 // Don't want one of these to be copied |
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210 ElfSymbolTableManager(const ElfSymbolTableManager & aElfSymbolTableManager); |
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211 |
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212 ElfSymbolTableManager & operator=(const ElfSymbolTableManager & aElfSymbolTableManager); |
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213 |
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214 size_t GetSymTabSectionSize(); |
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215 size_t GetFirstNonLocalIndex(); |
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216 |
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217 private: |
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218 typedef std::vector<ElfFileSymbolFragments> SymbolFragmentList; |
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219 private: |
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220 Elf32Header & iElf32Header; |
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221 E32RomImage & iRomImage; |
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222 OutputFile & iOutputFile; |
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223 ElfSectionManager & iElfSectionManager; |
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224 |
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225 char * iData; |
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226 bool iSymbolStringTableSizeValid; |
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227 size_t iSymbolStringTableSize; |
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228 ElfFileSymbolFragments iCurrentFragment; |
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229 SymbolFragmentList iSymbolFragments; |
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230 ElfSymTabStringTable iStringTable; |
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231 }; |
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232 |
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233 #endif /*ELFSYMBOLTABLEMANAGER_H_*/ |