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1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32test\debug\d_codemodifier.cpp |
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15 // See e32test\debug\t_codemodifier.cpp for details |
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16 // |
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17 // |
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18 |
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19 #include "d_codemodifier.h" |
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20 #include <kernel/kern_priv.h> |
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21 #include <kernel/cache.h> |
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22 |
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23 class DCodeModifier : public DLogicalChannelBase |
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24 { |
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25 public: |
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26 DCodeModifier(); |
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27 ~DCodeModifier(); |
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28 static TBool Handler (const TDesC8& aText, TTraceSource aTraceSource); |
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29 protected: |
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30 virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer); |
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31 virtual TInt Request(TInt aFunction, TAny* a1, TAny* a2); |
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32 private: |
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33 DThread* iThread[2]; |
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34 }; |
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35 |
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36 DCodeModifier* CodeModifierDriver; |
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37 |
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38 DCodeModifier::DCodeModifier() |
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39 { |
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40 } |
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41 |
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42 DCodeModifier::~DCodeModifier() |
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43 { |
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44 CodeModifierDriver = NULL; |
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45 } |
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46 |
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47 |
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48 /**Creates the channel*/ |
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49 TInt DCodeModifier::DoCreate(TInt /*aUnit*/, const TDesC8* /*anInfo*/, const TVersion& /*aVer*/) |
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50 { |
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51 return KErrNone; |
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52 } |
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53 |
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54 /**User side request entry point.*/ |
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55 TInt DCodeModifier::Request(TInt aFunction, TAny* a1, TAny* a2) |
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56 { |
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57 TInt r = KErrNone; |
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58 RCodeModifierDevice::TData data; |
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59 |
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60 kumemget(&data,a1,sizeof(data)); |
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61 switch (aFunction) |
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62 { |
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63 case RCodeModifierDevice::EControlThreadId: |
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64 { |
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65 DObjectCon* threads=Kern::Containers()[EThread]; |
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66 NKern::ThreadEnterCS(); |
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67 threads->Wait(); |
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68 iThread[data.iServer]=Kern::ThreadFromId(data.iThreadId); |
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69 if(!iThread[data.iServer]) |
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70 r=KErrNotFound; |
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71 threads->Signal(); |
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72 NKern::ThreadLeaveCS(); |
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73 } |
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74 break; |
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75 |
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76 case RCodeModifierDevice::EControlReadWord: |
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77 { |
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78 TInt val; |
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79 r = Kern::ThreadRawRead(iThread[data.iServer], (const TAny*) data.iAddress, (TAny*) &val, sizeof(TInt)); |
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80 kumemput(a2,&val,sizeof(TInt)); |
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81 } |
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82 break; |
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83 |
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84 case RCodeModifierDevice::EControlWriteWord: |
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85 r = Kern::ThreadRawWrite(iThread[data.iServer], (TAny*)data.iAddress,(const TAny*) &a2, sizeof(TInt)); |
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86 break; |
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87 |
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88 case RCodeModifierDevice::EControlWriteCode: |
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89 r = DebugSupport::ModifyCode(iThread[data.iServer], (TLinAddr) data.iAddress, data.iSize, (TUint)a2, DebugSupport::EBreakpointGlobal); |
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90 if (r == DebugSupport::EBreakpointGlobal) |
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91 r = KErrNone; |
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92 break; |
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93 |
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94 case RCodeModifierDevice::EControlRestoreCode: |
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95 r = DebugSupport::RestoreCode(iThread[data.iServer], (TLinAddr)data.iAddress); |
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96 break; |
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97 |
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98 case RCodeModifierDevice::EInitialiseCodeModifier: |
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99 { |
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100 TUint cap; |
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101 r = DebugSupport::InitialiseCodeModifier(cap,data.iSize); |
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102 if (r && (cap!=DebugSupport::EBreakpointGlobal)) |
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103 r = KErrGeneral; |
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104 } |
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105 break; |
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106 |
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107 case RCodeModifierDevice::ECloseCodeModifier: |
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108 DebugSupport::CloseCodeModifier(); |
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109 break; |
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110 |
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111 case RCodeModifierDevice::EControlAllocShadowPage: |
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112 NKern::ThreadEnterCS(); |
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113 r = Epoc::AllocShadowPage(data.iAddress & ~(Kern::RoundToPageSize(1)-1)); |
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114 NKern::ThreadLeaveCS(); |
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115 break; |
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116 |
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117 case RCodeModifierDevice::EControlFreeShadowPage: |
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118 NKern::ThreadEnterCS(); |
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119 r = Epoc::FreeShadowPage(data.iAddress & ~(Kern::RoundToPageSize(1)-1)); |
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120 NKern::ThreadLeaveCS(); |
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121 break; |
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122 |
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123 default: |
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124 r=KErrNotSupported; |
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125 } |
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126 return r; |
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127 } |
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128 |
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129 ////////////////////////////////////////// |
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130 class DTestFactory : public DLogicalDevice |
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131 { |
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132 public: |
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133 DTestFactory(); |
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134 // from DLogicalDevice |
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135 virtual TInt Install(); |
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136 virtual void GetCaps(TDes8& aDes) const; |
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137 virtual TInt Create(DLogicalChannelBase*& aChannel); |
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138 }; |
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139 |
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140 DTestFactory::DTestFactory() |
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141 { |
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142 iParseMask = KDeviceAllowUnit; |
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143 iUnitsMask = 0x3; |
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144 } |
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145 |
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146 TInt DTestFactory::Create(DLogicalChannelBase*& aChannel) |
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147 { |
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148 CodeModifierDriver = new DCodeModifier; |
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149 aChannel = CodeModifierDriver; |
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150 return (aChannel ? KErrNone : KErrNoMemory); |
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151 } |
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152 |
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153 TInt DTestFactory::Install() |
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154 { |
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155 return SetName(&KCodeModifierName); |
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156 } |
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157 |
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158 void DTestFactory::GetCaps(TDes8& /*aDes*/) const |
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159 { |
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160 } |
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161 |
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162 DECLARE_STANDARD_LDD() |
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163 { |
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164 return new DTestFactory; |
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165 } |