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1 /* |
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2 * Copyright (c) 2010 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 * Redistribution and use in source and binary forms, with or without |
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6 * modification, are permitted provided that the following conditions are met: |
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7 * |
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8 * - Redistributions of source code must retain the above copyright notice, |
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9 * this list of conditions and the following disclaimer. |
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10 * - Redistributions in binary form must reproduce the above copyright notice, |
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11 * this list of conditions and the following disclaimer in the documentation |
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12 * and/or other materials provided with the distribution. |
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13 * - Neither the name of Nokia Corporation nor the names of its contributors |
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14 * may be used to endorse or promote products derived from this software |
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15 * without specific prior written permission. |
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16 * |
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17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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27 * POSSIBILITY OF SUCH DAMAGE. |
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28 * |
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29 * Initial Contributors: |
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30 * Nokia Corporation - initial contribution. |
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31 * |
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32 * Contributors: |
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33 * |
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34 * Description: |
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35 * |
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36 */ |
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37 |
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38 using System; |
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39 using System.Text; |
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40 using System.Collections; |
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41 using System.Collections.Generic; |
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42 using MemAnalysisLib.Parser.Prefixes; |
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43 using MemAnalysisLib.MemoryOperations.Functions; |
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44 using MemAnalysisLib.MemoryOperations.Class; |
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45 using MemAnalysisLib.MemoryOperations.Operations; |
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46 using MemAnalysisLib.Interfaces; |
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47 using SymbianUtils; |
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48 |
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49 namespace MemAnalysisLib.MemoryOperations.Functions.Kernel |
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50 { |
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51 internal abstract class MemOpFnKReallocBase : MemOpFnKAllocBase |
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52 { |
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53 #region Constructors & destructor |
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54 protected MemOpFnKReallocBase() |
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55 { |
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56 } |
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57 #endregion |
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58 |
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59 #region From MemOpFnBase |
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60 public override MemAnalysisLib.MemoryOperations.Class.TClass Class |
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61 { |
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62 get { return TClass.EReallocation; } |
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63 } |
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64 |
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65 public override MemOpBase Parse( ref string aLine, MemAnalysisParserPrefixesBase aPrefixes ) |
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66 { |
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67 MemOpReallocation ret = new MemOpReallocation(); |
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68 |
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69 // Parse fields |
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70 base.ParseCommonKernel( ret, ref aLine, aPrefixes ); |
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71 base.ParseCommonAlloc( ret, ref aLine, aPrefixes ); |
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72 ParseCommonRealloc( ret, ref aLine, aPrefixes ); |
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73 |
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74 // Set type |
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75 ret.Function = this; |
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76 |
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77 return ret; |
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78 } |
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79 #endregion |
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80 |
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81 #region Internal methods |
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82 protected void ParseCommonRealloc( MemOpReallocation aOperation, ref string aLine, MemAnalysisParserPrefixesBase aPrefixes ) |
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83 { |
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84 if ( aLine.IndexOf( aPrefixes.ReallocMode ) >= 0 ) |
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85 { |
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86 PrefixParser.SkipPrefix( aPrefixes.ReallocMode, ref aLine ); |
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87 aOperation.ReallocationMode = (byte) PrefixParser.ReadLong( ref aLine ); |
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88 } |
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89 if ( aLine.IndexOf( aPrefixes.OriginalCellAddress ) >= 0 ) |
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90 { |
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91 PrefixParser.SkipPrefix( aPrefixes.OriginalCellAddress, ref aLine ); |
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92 aOperation.OriginalAddress = PrefixParser.ReadUint( ref aLine ); |
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93 } |
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94 if ( aLine.IndexOf( aPrefixes.OriginalCellSize ) >= 0 ) |
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95 { |
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96 PrefixParser.SkipPrefix( aPrefixes.OriginalCellSize, ref aLine ); |
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97 aOperation.OriginalAllocationSize = PrefixParser.ReadUint( ref aLine ); |
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98 } |
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99 if ( aLine.IndexOf( aPrefixes.OriginalCellAllocNumber ) >= 0 ) |
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100 { |
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101 PrefixParser.SkipPrefix( aPrefixes.OriginalCellAllocNumber, ref aLine ); |
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102 aOperation.OriginalAllocationNumber = PrefixParser.ReadUint( ref aLine ); |
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103 } |
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104 } |
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105 #endregion |
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106 } |
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107 |
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108 internal class MemOpFnKernReAlloc : MemOpFnKReallocBase |
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109 { |
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110 #region Constructors & destructor |
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111 public MemOpFnKernReAlloc() |
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112 { |
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113 } |
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114 #endregion |
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115 |
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116 #region From MemOpFnBase |
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117 public override string ToString() |
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118 { |
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119 return base.ToString() + "Kern::ReAlloc"; |
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120 } |
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121 #endregion |
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122 } |
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123 |
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124 internal class MemOpFnKernSafeReAlloc : MemOpFnKReallocBase |
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125 { |
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126 #region Constructors & destructor |
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127 public MemOpFnKernSafeReAlloc() |
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128 { |
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129 } |
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130 #endregion |
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131 |
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132 #region From MemOpFnBase |
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133 public override string ToString() |
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134 { |
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135 return base.ToString() + "Kern::SafeReAlloc"; |
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136 } |
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137 |
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138 public override void Process( MemOpBase aItem, CollectionManager aCollectionManager ) |
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139 { |
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140 if ( aItem.CellAddress == 0xc8099f8c ) |
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141 { |
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142 int x = 0; |
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143 x++; |
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144 } |
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145 |
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146 // (1) Alloc, SafeRealloc |
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147 // |
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148 // [KMEM] OKA - C: 0xc801a65c, HS: 29096, HCS: 53128, LR: 0x800b82f4, CS: 4, AS: 4, AN: 93 |
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149 // [KMEM] OKSR - C: 0xc801a65c, HS: 29096, HCS: 53128, LR: 0x800aebdc, AS: 4, AN: 93, OC: 0x00000000, OCS: 0, OCAN: 0, VT: 0x00000000 |
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150 // |
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151 // |
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152 // (2) Realloc, SafeRealloc |
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153 // [KMEM] OKR - C: 0xc801ae1c, HS: 33656, HCS: 53128, LR: 0x800b82d4, AS: 12, AN: 106, MD: 1, OC: 0xc801ae1c, OCS: 12, OCAN: 106, VT: 0xc801a688 |
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154 // [KMEM] OKSR - C: 0xc801ae1c, HS: 33656, HCS: 53128, LR: 0x800aebdc, AS: 12, AN: 106, OC: 0xc801ae1c, OCS: 12, OCAN: 106, VT: 0xc801a688 |
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155 // ... |
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156 // [KMEM] OKR - C: 0xc822ee8c, HS: 1672036, HCS: 2236296, LR: 0x800b83c8 [ Kern::SafeReAlloc(void*&, int, int) ], CS: 660, AS: 652, AN: 99936, MD: 0, OC: 0xc822ee8c, OCS: 660, OCAN: 99936, VT: 0xc80131e8 |
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157 // [KMEM] OKSR - C: 0xc822ee8c, HS: 1672036, HCS: 2236296, LR: 0x800adc7c [ DObjectCon::Remove(DObject*) ], CS: 660, AS: 652, AN: 99936, OC: 0xc822ee8c, OCS: 660, OCAN: 99936, VT: 0xc80131e8 |
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158 // |
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159 // |
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160 // (3) Alloc, Free, SafeRealloc |
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161 // |
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162 // [KMEM] OKA - C: 0xc801a744, HS: 29268, HCS: 53128, LR: 0x800b82f4, CS: 4, AS: 4, AN: 98 |
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163 // [KMEM] OKSR - C: 0xc801a744, HS: 29268, HCS: 53128, LR: 0x800aebdc, AS: 4, AN: 98, OC: 0x00000000, OCS: 0, OCAN: 0, VT: 0x00000000 |
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164 // ... |
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165 // [KMEM] OKA - C: 0xc801ae1c, HS: 30932, HCS: 53128, LR: 0x800b82f4, CS: 12, AS: 8, AN: 106 |
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166 // [KMEM] OKF - C: 0xc801a744, HS: 30928, HCS: 53128, LR: 0x800b836c, CS: 4, AN: 98, VT: 0xc801a688 |
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167 // [KMEM] OKSR - C: 0xc801ae1c, HS: 30928, HCS: 53128, LR: 0x800aebdc, AS: 8, AN: 106, OC: 0xc801a744, OCS: 4, OCAN: 98, VT: 0xc801a688 |
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168 |
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169 MemOpBase lastOpByAllocNumber = aCollectionManager.PriorOperationByAllocationNumber( aItem.AllocationNumber ); |
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170 MemOpReallocation op = (MemOpReallocation) aItem; |
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171 |
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172 if ( lastOpByAllocNumber != null ) |
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173 { |
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174 if ( lastOpByAllocNumber.CellAddress == op.CellAddress && |
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175 lastOpByAllocNumber.Class == TClass.EAllocation && |
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176 op.OriginalAddress == 0 ) |
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177 { |
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178 // 1) Alloc, SafeRealloc => dump alloc |
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179 aCollectionManager.RemoveFromCollection( lastOpByAllocNumber ); |
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180 aCollectionManager.RemovePriorOperation( lastOpByAllocNumber ); |
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181 aCollectionManager.AddToCollection( op, op.LinkRegisterSymbol, op.LinkRegisterAddress ); |
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182 aCollectionManager.AddNewPriorOperation( op ); |
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183 } |
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184 else if ( lastOpByAllocNumber.Class == TClass.EReallocation && lastOpByAllocNumber.CellAddress == op.CellAddress ) |
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185 { |
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186 // 2) Realloc, SafeRealloc => dump realloc |
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187 aCollectionManager.RemoveFromCollection( lastOpByAllocNumber ); |
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188 aCollectionManager.RemovePriorOperation( lastOpByAllocNumber ); |
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189 |
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190 // Also, it's possible that this is just a no-op. For example, this pattern can occur when removing |
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191 // an object from a DObjectCon, in which case the DObjectCon code requests that the cell be shrunk in size. |
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192 // |
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193 // If there is no cell growth, then we shouldn't bother saving the operation. |
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194 int impact = (int) op.AllocationSize - (int) op.OriginalAllocationSize; |
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195 if ( impact > 0 ) |
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196 { |
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197 aCollectionManager.AddToCollection( op, op.LinkRegisterSymbol, op.LinkRegisterAddress ); |
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198 aCollectionManager.AddNewPriorOperation( op ); |
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199 } |
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200 } |
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201 else |
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202 { |
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203 // Checking for scenario (3) |
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204 // |
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205 // lastOpByAllocNumber will correspond to the 'alloc' operation. |
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206 if ( lastOpByAllocNumber.Class == TClass.EAllocation && |
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207 lastOpByAllocNumber.CellAddress == op.CellAddress ) // Satisfies linkage between OKSR and OKA |
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208 { |
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209 // We need to find out what the prior op was for the original cell allocation number. |
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210 // This should point to the 'free' operation. |
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211 MemOpBase freeOp = aCollectionManager.PriorOperationByAllocationNumber( op.OriginalAllocationNumber ); |
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212 |
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213 // If we're throwing away matching allocated & subsequently freed cells, then freeOp will be null... |
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214 if ( freeOp == null || ( freeOp.Class == TClass.EDeallocation && freeOp.CellAddress == op.OriginalAddress ) ) |
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215 { |
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216 // (3) Alloc, Free, SafeRealloc => dump alloc and free! |
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217 |
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218 // Remove alloc, which is replaced by our new SafeRealloc entry |
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219 aCollectionManager.RemovePriorOperation( lastOpByAllocNumber ); |
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220 aCollectionManager.RemoveFromCollection( lastOpByAllocNumber ); |
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221 |
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222 // Remove free for the old SafeRealloc heap cell |
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223 if ( freeOp != null ) |
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224 { |
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225 aCollectionManager.RemovePriorOperation( freeOp ); |
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226 aCollectionManager.RemoveFromCollection( freeOp ); |
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227 |
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228 // We may also need to remove a prior SafeRealloc that uses the same heap cell |
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229 MemOpBase safeReallocForDeletedCell = aCollectionManager.PriorOperationByAllocationNumber( freeOp.AllocationNumber ); |
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230 if ( safeReallocForDeletedCell.Class == TClass.EReallocation && safeReallocForDeletedCell.CellAddress == freeOp.CellAddress ) |
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231 { |
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232 // Remove prior realloc associated with the old heap cell |
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233 aCollectionManager.RemovePriorOperation( safeReallocForDeletedCell ); |
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234 aCollectionManager.RemoveFromCollection( safeReallocForDeletedCell ); |
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235 } |
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236 } |
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237 |
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238 // Now add our new SafeRealloc entry to the master list |
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239 aCollectionManager.AddToCollection( op, op.LinkRegisterSymbol, op.LinkRegisterAddress ); |
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240 aCollectionManager.AddNewPriorOperation( op ); |
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241 } |
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242 } |
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243 } |
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244 } |
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245 } |
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246 #endregion |
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247 } |
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248 } |