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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 * This component and the accompanying materials are made available |
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5 * under the terms of "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 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 #include "MemSpyDriverHeap.h" |
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19 |
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20 // System includes |
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21 #include <kern_priv.h> |
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22 |
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23 // User includes |
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24 #include "MemSpyDriverOSAdaption.h" |
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25 #include "MemSpyDriverUtils.h" |
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26 |
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27 // Defines |
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28 #define __NEXT_CELL(p) ((RMemSpyDriverRHeapBase::SCell*)(((TUint8*)p)+p->len)) |
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29 #define __NEXT_CELL2(p,l) ((RMemSpyDriverRHeapBase::SCell*)(((TUint8*)p)+l)) |
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30 |
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31 |
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32 RMemSpyDriverRHeapBase::RMemSpyDriverRHeapBase() |
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33 { |
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34 Reset(); |
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35 } |
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36 |
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37 |
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38 void RMemSpyDriverRHeapBase::Reset() |
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39 { |
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40 iAccessCount = 0; |
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41 iHandleCount = 0; |
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42 iHandles = NULL; |
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43 iFlags = 0; |
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44 iCellCount = 0; |
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45 iTotalAllocSize = 0; |
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46 |
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47 iMinLength = 0; |
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48 iMaxLength = 0; |
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49 iOffset = 0; |
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50 iGrowBy = 0; |
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51 iChunkHandle = 0; |
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52 // iLock needs no initialisation due to default ctor |
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53 iBase = NULL; |
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54 iTop = NULL; |
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55 iAlign = 0; |
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56 iMinCell = 0; |
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57 iPageSize = 0; |
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58 iFree.len = 0; |
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59 iFree.next = NULL; |
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60 iNestingLevel = 0; |
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61 iAllocCount = 0; |
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62 iFailType = RAllocator::EReset; |
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63 iFailRate = 0; |
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64 iFailed = EFalse; |
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65 iFailAllocCount = 0; |
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66 iRand = 0; |
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67 iTestData = NULL; |
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68 } |
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69 |
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70 |
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71 TBool RMemSpyDriverRHeapBase::CheckCell( TAny* aCellAddress, TInt aLength ) const |
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72 { |
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73 const TLinAddr m = TLinAddr(iAlign - 1); |
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74 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapBase::CheckCell() - cell: 0x%08x, len: %8d, iAlign: %d, m: %d", aCellAddress, aLength, iAlign, m) ); |
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75 |
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76 TBool isValid = ETrue; |
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77 // |
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78 if ( isValid && (aLength & m) ) |
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79 { |
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80 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapBase::CheckCell() - ERROR - length is odd: %d, iAlign: %d, m: %d", aLength, iAlign, m) ); |
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81 isValid = EFalse; |
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82 } |
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83 if ( isValid && aLength < iMinCell ) |
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84 { |
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85 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapBase::CheckCell() - ERROR - length: %d, is less than min cell size (%d)", aLength, iMinCell) ); |
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86 isValid = EFalse; |
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87 } |
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88 if ( isValid && (TUint8*)aCellAddress < iBase ) |
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89 { |
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90 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapBase::CheckCell() - ERROR - cell address: 0x%08x, is before start address: 0x%08x", (TUint8*) aCellAddress, iBase) ); |
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91 isValid = EFalse; |
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92 } |
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93 |
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94 if ( isValid ) |
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95 { |
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96 const TUint8* nextCell = (TUint8*)__NEXT_CELL2(aCellAddress, aLength); |
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97 if ( nextCell > iTop ) |
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98 { |
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99 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapBase::CheckCell() - ERROR - nextCell: 0x%08x is after the top of the heap: 0x%08x", nextCell, iTop) ); |
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100 isValid = EFalse; |
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101 } |
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102 } |
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103 // |
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104 return isValid; |
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105 } |
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106 |
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107 |
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108 TInt RMemSpyDriverRHeapBase::AllocatedCellHeaderSize( TBool aDebugLibrary ) |
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109 { |
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110 // Allocated cells are only 4 bytes in UREL, but 12 bytes in UDEB. |
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111 TInt size = sizeof(SCell*); |
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112 // |
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113 if ( aDebugLibrary ) |
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114 { |
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115 size = sizeof(SDebugCell); |
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116 } |
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117 // |
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118 return size; |
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119 } |
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120 |
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121 |
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122 TInt RMemSpyDriverRHeapBase::FreeCellHeaderSize() |
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123 { |
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124 // Free cells remain the same size in UREL and UDEB builds. |
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125 const TInt size = sizeof(SCell); |
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126 return size; |
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127 } |
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128 |
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129 |
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130 TInt RMemSpyDriverRHeapBase::CellHeaderSize( const TMemSpyDriverInternalWalkHeapParamsCell& aCell, TBool aDebugLibrary ) |
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131 { |
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132 TInt size = 0; |
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133 // |
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134 if ( aCell.iCellType == EMemSpyDriverGoodAllocatedCell ) |
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135 { |
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136 size = AllocatedCellHeaderSize( aDebugLibrary ); |
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137 } |
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138 else if ( aCell.iCellType == EMemSpyDriverGoodFreeCell ) |
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139 { |
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140 size = FreeCellHeaderSize(); |
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141 } |
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142 // |
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143 return size; |
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144 } |
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145 |
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146 |
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147 void RMemSpyDriverRHeapBase::PrintInfo() |
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148 { |
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149 #if defined(TRACE_TYPE_KERNELHEAP) || defined(TRACE_TYPE_USERHEAP) |
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150 Kern::Printf(" " ); |
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151 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RAllocator - iAccessCount: 0x%08x", iAccessCount ); |
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152 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RAllocator - iHandleCount: 0x%08x", iHandleCount ); |
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153 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RAllocator - iHandles: 0x%08x", iHandles ); |
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154 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RAllocator - iFlags: 0x%08x", iFlags ); |
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155 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RAllocator - iCellCount: 0x%08x", iCellCount ); |
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156 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RAllocator - iTotalAllocSize: 0x%08x", iTotalAllocSize ); |
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157 |
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158 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iMinLength: 0x%08x", iMinLength ); |
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159 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iMaxLength: 0x%08x", iMaxLength ); |
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160 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iOffset: 0x%08x", iOffset); |
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161 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iGrowBy: 0x%08x", iGrowBy); |
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162 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iChunkHandle: 0x%08x", iChunkHandle); |
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163 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iBase: 0x%08x", Base()); |
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164 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iTop: 0x%08x", iTop ); |
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165 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iAlign: 0x%08x", iAlign); |
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166 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iMinCell: 0x%08x", iMinCell); |
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167 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iPageSize: 0x%08x", iPageSize); |
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168 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iFree len: 0x%08x", iFree.len); |
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169 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iFree next: 0x%08x", iFree.next); |
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170 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iNestingLevel: 0x%08x", iNestingLevel); |
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171 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - iAllocCount: 0x%08x", iAllocCount); |
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172 Kern::Printf("RMemSpyDriverRHeapBase::PrintInfo - RHeap - size: %8d", Size() ); |
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173 Kern::Printf(" " ); |
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174 Kern::Printf(" " ); |
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175 #endif |
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176 } |
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177 |
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178 |
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179 void RMemSpyDriverRHeapBase::CopyObjectDataTo( TMemSpyHeapObjectDataRHeap& aData ) |
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180 { |
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181 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapBase::CopyObjectDataTo() - START" ) ); |
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182 |
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183 TUint8* sourceAddress = reinterpret_cast< TUint8* >( this ); |
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184 sourceAddress += KRAllocatorAndRHeapMemberDataOffset; |
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185 memcpy( &aData, sourceAddress, KRHeapObjectSize ); |
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186 |
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187 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapBase::CopyObjectDataTo() - END") ); |
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188 } |
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238 RMemSpyDriverRHeapReadFromCopy::RMemSpyDriverRHeapReadFromCopy( DMemSpyDriverOSAdaption& aOSAdaption ) |
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239 : iOSAdaption( aOSAdaption ), iChunk( NULL ), iChunkAddress( 0 ), iChunkMappingAttributes( 0 ), iClientToKernelDelta( 0 ) |
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240 { |
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241 } |
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242 |
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243 |
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244 void RMemSpyDriverRHeapReadFromCopy::Reset() |
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245 { |
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246 RMemSpyDriverRHeapBase::Reset(); |
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247 // |
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248 iChunk = NULL; |
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249 iChunkAddress = 0; |
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250 iChunkMappingAttributes = 0; |
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251 iClientToKernelDelta = 0; |
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252 } |
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253 |
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254 |
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255 void RMemSpyDriverRHeapReadFromCopy::AssociateWithKernelChunk( DChunk* aChunk, TLinAddr aAddress, TUint32 aMappingAttributes ) |
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256 { |
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257 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapReadFromCopy::AssociateWithKernelChunk() - START - aChunk: %O, aChunk base: 0x%08x, aAddress: 0x%08x, clients heap base: 0x%08x, aChunk size: %8d", aChunk, aChunk->iBase, aAddress, Base(), aChunk->iSize ) ); |
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258 |
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259 iChunk = aChunk; |
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260 iChunkAddress = aAddress; |
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261 iChunkMappingAttributes = aMappingAttributes; |
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262 |
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263 // Calculate start of real heap data (skipping over embedded RHeap object) |
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264 // Since we must operate with kernel-side addressing into our cloned heap chunk, |
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265 // we must use aAddress (the kernel address of the chunk) rather than aChunk->iBase |
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266 iClientToKernelDelta = ( (TUint8*) aAddress ) - ( Base() - KRHeapObjectSize ); |
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267 |
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268 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapReadFromCopy::AssociateWithKernelChunk() - END - delta between client's user-side base address (base: 0x%08x), kernel-side base address (base: 0x%08x), and kernel-side chunk (base: 0x%08x) is: 0x%08x", Base(), aChunk->iBase, aAddress, iClientToKernelDelta) ); |
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269 } |
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271 |
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272 void RMemSpyDriverRHeapReadFromCopy::DisassociateWithKernelChunk() |
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273 { |
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274 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapReadFromCopy::DisassociateWithKernelChunk() - START - iChunk: 0x%08x", iChunk ) ); |
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275 |
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276 NKern::ThreadEnterCS(); |
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277 if ( iChunk != NULL ) |
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278 { |
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279 Kern::ChunkClose( iChunk ); |
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280 iChunk = NULL; |
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281 } |
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282 NKern::ThreadLeaveCS(); |
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283 |
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284 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapReadFromCopy::DisassociateWithKernelChunk() - END") ); |
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285 } |
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286 |
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288 DChunk& RMemSpyDriverRHeapReadFromCopy::Chunk() |
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289 { |
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290 return *iChunk; |
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291 } |
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293 |
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294 const DChunk& RMemSpyDriverRHeapReadFromCopy::Chunk() const |
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295 { |
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296 return *iChunk; |
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297 } |
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300 TLinAddr RMemSpyDriverRHeapReadFromCopy::ChunkKernelAddress() const |
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301 { |
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302 return iChunkAddress; |
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303 } |
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306 TBool RMemSpyDriverRHeapReadFromCopy::ChunkIsInitialised() const |
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307 { |
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308 return iChunk != NULL; |
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309 } |
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312 TUint RMemSpyDriverRHeapReadFromCopy::ClientToKernelDelta() const |
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313 { |
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314 return iClientToKernelDelta; |
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315 } |
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365 RMemSpyDriverRHeapUser::RMemSpyDriverRHeapUser( DMemSpyDriverOSAdaption& aOSAdaption ) |
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366 : RMemSpyDriverRHeapReadFromCopy( aOSAdaption ) |
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367 { |
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368 } |
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369 |
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370 |
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371 TInt RMemSpyDriverRHeapUser::ReadFromUserAllocator( DThread& aThread ) |
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372 { |
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373 TBuf8<KRHeapMemberDataSize> memberData; |
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374 memberData.SetMax(); |
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375 |
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376 NKern::ThreadEnterCS(); |
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377 NKern::LockSystem(); |
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378 RAllocator* allocator = OSAdaption().DThread().GetAllocator( aThread ); |
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379 NKern::UnlockSystem(); |
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380 NKern::ThreadLeaveCS(); |
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381 |
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382 TUint8* memberDataAddress = (TUint8*) allocator + KRAllocatorAndRHeapMemberDataOffset; |
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383 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapUser::ReadFromUserAllocator() - START - allocator addr: 0x%08x, therefore going to read %d bytes from address 0x%08x within client thread (0x%08x + %4d bytes)", allocator, KRHeapMemberDataSize, memberDataAddress, allocator, KRAllocatorAndRHeapMemberDataOffset ) ); |
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384 |
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385 const TInt error = Kern::ThreadRawRead( &aThread, memberDataAddress, (TAny*) memberData.Ptr(), KRHeapMemberDataSize ); |
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386 TRACE_DATA( MemSpyDriverUtils::DataDump("%lS", memberData.Ptr(), KRHeapMemberDataSize, KRHeapMemberDataSize ) ); |
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387 |
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388 if ( error == KErrNone ) |
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389 { |
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390 TUint8* destinationAddress = reinterpret_cast< TUint8* >( this ); |
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391 |
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392 // Skip over our vTable too... |
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393 destinationAddress += KRAllocatorAndRHeapMemberDataOffset; |
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394 |
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395 // Now copy data into this object |
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396 TPtr8 self( destinationAddress, KRHeapMemberDataSize, KRHeapMemberDataSize ); |
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397 self.Copy( memberData ); |
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398 |
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399 PrintInfo(); |
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400 } |
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401 else |
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402 { |
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403 } |
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404 |
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405 TRACE_HEAP( Kern::Printf("RMemSpyDriverRHeapUser::ReadFromUserAllocator() - END - read error: %d", error ) ); |
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406 return error; |
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407 } |
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424 RMemSpyDriverRHeapKernelFromCopy::RMemSpyDriverRHeapKernelFromCopy( DMemSpyDriverOSAdaption& aOSAdaption ) |
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425 : RMemSpyDriverRHeapReadFromCopy( aOSAdaption ) |
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426 { |
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427 } |
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428 |
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429 |
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430 void RMemSpyDriverRHeapKernelFromCopy::SetKernelHeap( RHeapK& aKernelHeap ) |
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431 { |
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432 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelFromCopy::SetKernelHeap() - START" ) ); |
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433 |
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434 // Perform a copy operation in order to populate base class with a duplicate of the kernel's heap info. |
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435 iKernelHeap = &aKernelHeap; |
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436 |
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437 // Source address |
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438 TUint8* sourceAddress = (TUint8*) iKernelHeap + KRAllocatorAndRHeapMemberDataOffset; |
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439 TUint8* destinationAddress = (TUint8*) this + KRAllocatorAndRHeapMemberDataOffset; |
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440 |
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441 // Copy |
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442 memcpy( destinationAddress, sourceAddress, KRHeapMemberDataSize ); |
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443 |
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444 // And print info in debug builds for verification... |
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445 PrintInfo(); |
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446 |
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447 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelFromCopy::SetKernelHeap() - END" ) ); |
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448 } |
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449 |
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450 |
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451 void RMemSpyDriverRHeapKernelFromCopy::DisassociateWithKernelChunk() |
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452 { |
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453 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelFromCopy::DisassociateWithKernelChunk() - START - iKernelHeap: 0x%08x", iKernelHeap )); |
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454 iKernelHeap = NULL; |
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455 RMemSpyDriverRHeapReadFromCopy::DisassociateWithKernelChunk(); |
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456 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelFromCopy::DisassociateWithKernelChunk() - END") ); |
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457 } |
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458 |
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460 void RMemSpyDriverRHeapKernelFromCopy::GetHeapSpecificInfo( TMemSpyHeapInfo& aInfo ) const |
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461 { |
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462 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelFromCopy::GetHeapSpecificInfo() - START - iKernelHeap: 0x%08x", iKernelHeap )); |
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463 // |
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464 if ( iKernelHeap ) |
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465 { |
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466 const TUint32* pHeap = reinterpret_cast< TUint32* >( iKernelHeap ); |
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467 // |
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468 TMemSpyHeapInfoRHeap& rHeapInfo = aInfo.AsRHeap(); |
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469 TMemSpyHeapMetaDataRHeap& rHeapMetaData = rHeapInfo.MetaData(); |
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470 rHeapMetaData.SetVTable( *pHeap ); |
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471 rHeapMetaData.SetClassSize( KRHeapObjectSize ); |
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472 // |
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473 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelFromCopy::GetHeapSpecificInfo() - RHeapK vtable is: 0x%08x", *pHeap )); |
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474 } |
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475 // |
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476 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelFromCopy::GetHeapSpecificInfo() - END") ); |
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477 } |
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499 RMemSpyDriverRHeapKernelInPlace::RMemSpyDriverRHeapKernelInPlace() |
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500 : iKernelHeap( NULL ), iChunk( NULL ) |
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501 { |
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502 } |
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503 |
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504 |
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505 void RMemSpyDriverRHeapKernelInPlace::SetKernelHeap( RHeapK& aKernelHeap ) |
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506 { |
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507 iKernelHeap = &aKernelHeap; |
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508 CopyMembersFromKernelHeap(); |
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509 } |
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510 |
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511 |
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512 void RMemSpyDriverRHeapKernelInPlace::FailNext() |
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513 { |
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514 RMemSpyDriverRHeapKernelInPlace::RHeapKExtended* heap = reinterpret_cast< RMemSpyDriverRHeapKernelInPlace::RHeapKExtended* >( iKernelHeap ); |
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515 heap->FailNext(); |
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516 } |
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517 |
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518 |
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519 void RMemSpyDriverRHeapKernelInPlace::Reset() |
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520 { |
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521 RMemSpyDriverRHeapBase::Reset(); |
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522 // |
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523 iChunk = NULL; |
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524 } |
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525 |
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526 |
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527 void RMemSpyDriverRHeapKernelInPlace::AssociateWithKernelChunk( DChunk* aChunk, TLinAddr /*aAddress*/, TUint32 /*aMappingAttributes*/ ) |
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528 { |
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529 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelInPlace::AssociateWithKernelChunk() - START - aChunk: %O, aChunk base: 0x%08x", aChunk, aChunk->iBase ) ); |
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530 iChunk = aChunk; |
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531 } |
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532 |
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533 |
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534 void RMemSpyDriverRHeapKernelInPlace::DisassociateWithKernelChunk() |
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535 { |
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536 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelInPlace::DisassociateWithKernelChunk() - START - iChunk: 0x%08x", iChunk )); |
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537 iChunk = NULL; |
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538 iKernelHeap = NULL; |
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539 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelInPlace::DisassociateWithKernelChunk() - END") ); |
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540 } |
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541 |
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542 |
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543 DChunk& RMemSpyDriverRHeapKernelInPlace::Chunk() |
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544 { |
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545 return *iChunk; |
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546 } |
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547 |
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548 |
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549 const DChunk& RMemSpyDriverRHeapKernelInPlace::Chunk() const |
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550 { |
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551 return *iChunk; |
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552 } |
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553 |
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554 |
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555 TLinAddr RMemSpyDriverRHeapKernelInPlace::ChunkKernelAddress() const |
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556 { |
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557 const TLinAddr ret = reinterpret_cast< TLinAddr >( iChunk->iBase ); |
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558 return ret; |
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559 } |
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560 |
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561 |
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562 TBool RMemSpyDriverRHeapKernelInPlace::ChunkIsInitialised() const |
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563 { |
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564 return iChunk != NULL; |
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565 } |
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566 |
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567 |
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568 TUint RMemSpyDriverRHeapKernelInPlace::ClientToKernelDelta() const |
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569 { |
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570 // We're operating in kernel address space, there is no delta. |
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571 return 0; |
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572 } |
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573 |
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574 |
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575 void RMemSpyDriverRHeapKernelInPlace::CopyMembersFromKernelHeap() |
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576 { |
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577 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelInPlace::CopyMembersFromKernelHeap() - START" ) ); |
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578 |
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579 // Perform a copy operation in order to populate base class with a duplicate of the kernel's heap info. |
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580 RHeapK* kernelHeap = iKernelHeap; |
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581 |
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582 // Source address |
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583 TUint8* sourceAddress = (TUint8*) kernelHeap + KRAllocatorAndRHeapMemberDataOffset; |
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584 TUint8* destinationAddress = (TUint8*) this + KRAllocatorAndRHeapMemberDataOffset; |
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585 |
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586 // Copy |
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587 memcpy( destinationAddress, sourceAddress, KRHeapMemberDataSize ); |
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588 |
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589 // And print info in debug builds for verification... |
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590 PrintInfo(); |
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591 |
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592 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelInPlace::CopyMembersFromKernelHeap() - END" ) ); |
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593 } |
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594 |
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595 |
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596 void RMemSpyDriverRHeapKernelInPlace::GetHeapSpecificInfo( TMemSpyHeapInfo& aInfo ) const |
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597 { |
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598 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelInPlace::GetHeapSpecificInfo() - START - iKernelHeap: 0x%08x", iKernelHeap )); |
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599 // |
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600 if ( iKernelHeap ) |
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601 { |
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602 const TUint32* pHeap = reinterpret_cast< TUint32* >( iKernelHeap ); |
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603 // |
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604 TMemSpyHeapInfoRHeap& rHeapInfo = aInfo.AsRHeap(); |
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605 TMemSpyHeapMetaDataRHeap& rHeapMetaData = rHeapInfo.MetaData(); |
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606 rHeapMetaData.SetVTable( *pHeap ); |
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607 rHeapMetaData.SetClassSize( KRHeapObjectSize ); |
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608 // |
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609 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelInPlace::GetHeapSpecificInfo() - RHeapK vtable is: 0x%08x", *pHeap )); |
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610 } |
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611 // |
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612 TRACE_KH( Kern::Printf("RMemSpyDriverRHeapKernelInPlace::GetHeapSpecificInfo() - END") ); |
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613 } |
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614 |
|
615 |
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616 |
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617 |
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618 |