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1 // symbolics.cpp |
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2 // |
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3 // Copyright (c) 2010 Accenture. All rights reserved. |
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4 // This component and the accompanying materials are made available |
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5 // under the terms of the "Eclipse Public License v1.0" |
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6 // which accompanies this distribution, and is available |
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7 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 // |
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9 // Initial Contributors: |
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10 // Accenture - Initial contribution |
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11 // |
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12 #include <fshell/bsym.h> |
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13 #include <fshell/ltkutils.h> |
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14 #include <fshell/stringhash.h> |
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15 #include <fshell/iocli.h> |
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16 #include "bsymtree.h" |
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17 |
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18 using namespace LtkUtils; |
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19 using namespace IoUtils; |
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20 |
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21 EXPORT_C CSymbolics::CSymbolics(RFs& aFs) |
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22 : iFs(aFs) |
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23 { |
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24 } |
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25 |
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26 EXPORT_C CSymbolics::~CSymbolics() |
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27 { |
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28 iBsyms.ResetAndDestroy(); |
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29 TStringHashIter<CMapFile*> iter(iCodeSegHash); |
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30 while (iter.NextValue() != NULL) |
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31 { |
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32 CMapFile** file = iter.CurrentValue(); |
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33 delete *file; |
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34 } |
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35 iCodeSegHash.Close(); |
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36 delete iTabCompleteTree; |
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37 delete iTabCompleteCodeseg; |
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38 } |
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39 |
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40 EXPORT_C void CSymbolics::AddBsymFileL(const TDesC& aFileName) |
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41 { |
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42 CBsymFile* file = CBsymFile::NewL(iFs, aFileName); |
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43 TInt err = iBsyms.Append(file); |
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44 if (err) |
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45 { |
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46 delete file; |
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47 User::Leave(err); |
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48 } |
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49 } |
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50 |
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51 EXPORT_C void CSymbolics::AddMapFileL(const TDesC& aFileName) |
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52 { |
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53 CMapFile* file = CMapFile::NewL(iFs, aFileName); |
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54 CleanupStack::PushL(file); |
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55 AddMapFileL(file); |
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56 CleanupStack::Pop(file); |
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57 } |
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58 |
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59 EXPORT_C void CSymbolics::AddMapFileL(CMapFile* aMapFile) |
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60 { |
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61 aMapFile->GetFileNameL(iTempString); |
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62 TParsePtrC parse(iTempString); |
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63 TPtrC name = parse.Name(); // Don't use NameAndExt, that will include the .map! |
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64 TPtr namePtr((TUint16*)name.Ptr(), name.Length(), name.Length()); // Nasty but TParsePtr won't give us a non-const Name(). |
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65 namePtr.LowerCase(); |
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66 User::LeaveIfError(iCodeSegHash.Insert(namePtr, aMapFile)); |
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67 } |
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68 |
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69 EXPORT_C void CSymbolics::SetFallbackMapFileDirL(const TDesC& aDir) |
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70 { |
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71 iFallbackMapFileDir = aDir; |
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72 } |
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73 |
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74 EXPORT_C TPtrC CSymbolics::LookupL(TUint32 aRomAddress) |
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75 { |
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76 for (TInt i = 0; i < iBsyms.Count(); i++) |
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77 { |
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78 TPtrC res = iBsyms[i]->LookupL(aRomAddress); |
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79 if (res.Length()) return res; |
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80 } |
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81 return TPtrC(); |
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82 } |
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83 |
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84 EXPORT_C TPtrC CSymbolics::LookupL(const TDesC& aCodeseg, TUint32 aOffset) |
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85 { |
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86 CMapFile* mapFile = FindOrLoadMapFileL(aCodeseg); |
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87 |
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88 iTempString.Zero(); |
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89 if (mapFile) |
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90 { |
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91 mapFile->Lookup(aOffset, iTempString); |
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92 if (iTempString.Length()) |
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93 { |
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94 iTempString.AppendFormat(_L(" (%S)"), &aCodeseg); |
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95 } |
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96 } |
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97 else |
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98 { |
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99 // Try BSYMs in case it's in ROFS |
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100 for (TInt i = 0; i < iBsyms.Count(); i++) |
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101 { |
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102 TPtrC res = iBsyms[i]->LookupL(aCodeseg, aOffset); |
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103 } |
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104 } |
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105 return TPtrC(iTempString); |
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106 } |
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107 |
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108 EXPORT_C void CSymbolics::CompleteL(const TDesC& aCodeseg, TDes& aSymbolName, CDesC16Array& aSuggestions) |
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109 { |
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110 RNode* tree = TreeForCodesegL(aCodeseg); |
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111 if (tree) |
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112 { |
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113 tree->CompleteL(aSymbolName, aSuggestions); |
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114 } |
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115 } |
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116 |
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117 RNode* CSymbolics::TreeForCodesegL(const TDesC& aCodeseg) |
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118 { |
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119 iTempString.Copy(aCodeseg); |
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120 iTempString.LowerCase(); |
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121 if (iTabCompleteCodeseg && *iTabCompleteCodeseg != iTempString) |
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122 { |
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123 // If iTabCompleteCodeseg is set it means that iTabCompleteTree (if it's non-null) matches. |
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124 delete iTabCompleteCodeseg; |
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125 iTabCompleteCodeseg = NULL; |
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126 delete iTabCompleteTree; |
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127 iTabCompleteTree = NULL; |
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128 } |
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129 if (!iTabCompleteCodeseg) iTabCompleteCodeseg = iTempString.AllocL(); |
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130 |
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131 if (iTabCompleteTree == NULL) |
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132 { |
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133 for (TInt i = 0; i < iBsyms.Count(); i++) |
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134 { |
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135 RNode* tree = iBsyms[i]->CreateCompletionTreeL(*iTabCompleteCodeseg); |
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136 if (tree) |
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137 { |
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138 iTabCompleteTree = tree; |
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139 break; |
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140 } |
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141 } |
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142 } |
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143 // Try the map files now |
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144 if (iTabCompleteTree == NULL) |
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145 { |
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146 CMapFile* mapFile = FindOrLoadMapFileL(aCodeseg); |
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147 if (mapFile) |
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148 { |
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149 iTabCompleteTree = mapFile->CreateCompletionTreeL(); |
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150 } |
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151 } |
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152 return iTabCompleteTree; |
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153 } |
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154 |
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155 EXPORT_C TUint32 CSymbolics::CodesegOffsetFromSymbolNameL(const TDesC& aCodeseg, const TDesC& aSymbolName) |
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156 { |
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157 RNode* tree = TreeForCodesegL(aCodeseg); |
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158 if (!tree) User::Leave(KErrNotFound); |
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159 return tree->ValueForStringL(aSymbolName); |
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160 } |
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161 |
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162 CMapFile* CSymbolics::FindOrLoadMapFileL(const TDesC& aCodeseg) |
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163 { |
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164 iTempString.Copy(aCodeseg); |
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165 iTempString.LowerCase(); |
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166 |
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167 // If it's already loaded, return it |
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168 CMapFile* mapFile = iCodeSegHash.FindPtr(iTempString); |
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169 if (mapFile) return mapFile; |
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170 |
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171 if (iFallbackMapFileDir.Length() == 0) return NULL; |
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172 // Try loading the mapfile |
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173 TFileName2 fn = iFallbackMapFileDir; |
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174 fn.AppendComponentL(iTempString); |
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175 fn.Append(_L(".map")); |
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176 TEntry e; |
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177 if (iFs.Entry(fn, e) == KErrNone) |
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178 { |
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179 TRAPD(err, AddMapFileL(fn)); |
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180 StaticLeaveIfErr(err, _L("Could not load map file %S"), &fn); |
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181 // AddMapFileL overwrites iTempString, so restore it (nasty but I object to wasting buffers on the stack...) |
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182 iTempString.Copy(aCodeseg); |
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183 iTempString.LowerCase(); |
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184 return iCodeSegHash.FindPtr(iTempString); |
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185 } |
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186 return NULL; |
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187 } |