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1 // Copyright (c) 1995-2009 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 // e32\memmodel\epoc\direct\mcodeseg.cpp |
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15 // |
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16 // |
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17 |
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18 #include <memmodel.h> |
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19 #include <kernel/cache.h> |
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20 |
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21 DCodeSeg* M::NewCodeSeg(TCodeSegCreateInfo&) |
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22 { |
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23 __KTRACE_OPT(KDLL,Kern::Printf("M::NewCodeSeg")); |
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24 return new DMemModelCodeSeg; |
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25 } |
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26 |
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27 |
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28 DEpocCodeSegMemory* DEpocCodeSegMemory::New(DEpocCodeSeg* aCodeSeg) |
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29 { |
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30 return new DMemModelCodeSegMemory(aCodeSeg); |
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31 } |
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32 |
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33 |
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34 DMemModelCodeSegMemory::DMemModelCodeSegMemory(DEpocCodeSeg* aCodeSeg) |
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35 : DEpocCodeSegMemory(aCodeSeg) |
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36 { |
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37 } |
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38 |
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39 |
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40 DMemModelCodeSeg::DMemModelCodeSeg() |
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41 { |
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42 } |
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43 |
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44 |
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45 DMemModelCodeSeg::~DMemModelCodeSeg() |
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46 // |
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47 // Destructor |
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48 // |
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49 { |
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50 __KTRACE_OPT(KDLL,Kern::Printf("DMemModelCodeSeg::Destruct %C", this)); |
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51 if (!iXIP && iMemory) |
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52 { |
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53 SRamCodeInfo& ri=RamInfo(); |
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54 if (ri.iCodeLoadAddr) |
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55 { |
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56 TInt code_size=MM::RoundToBlockSize(ri.iCodeSize+ri.iDataSize); |
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57 MM::FreeRegion(ri.iCodeLoadAddr, code_size); |
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58 } |
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59 if (iDataAlloc) |
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60 { |
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61 TInt data_size=MM::RoundToBlockSize(ri.iDataSize+ri.iBssSize); |
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62 MM::FreeRegion(iDataAlloc, data_size); |
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63 } |
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64 } |
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65 Kern::Free(iKernelData); |
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66 DEpocCodeSeg::Destruct(); |
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67 } |
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68 |
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69 TInt DMemModelCodeSeg::DoCreateRam(TCodeSegCreateInfo& aInfo, DProcess* aProcess) |
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70 { |
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71 __KTRACE_OPT(KDLL,Kern::Printf("DMemModelCodeSeg::DoCreateRam %C proc %O", this, aProcess)); |
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72 DMemModelProcess* p=(DMemModelProcess*)aProcess; |
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73 TBool kernel=( (iAttr&(ECodeSegAttKernel|ECodeSegAttGlobal)) == ECodeSegAttKernel ); |
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74 SRamCodeInfo& ri=RamInfo(); |
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75 iSize = MM::RoundToBlockSize(ri.iCodeSize+ri.iDataSize); |
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76 TInt total_data_size=ri.iDataSize+ri.iBssSize; |
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77 TInt r=MM::AllocRegion(ri.iCodeLoadAddr, iSize); |
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78 if (r!=KErrNone) |
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79 return r; |
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80 ri.iCodeRunAddr=ri.iCodeLoadAddr; |
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81 if (ri.iDataSize) |
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82 ri.iDataLoadAddr=ri.iCodeLoadAddr+ri.iCodeSize; |
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83 if (kernel) |
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84 { |
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85 if (total_data_size) |
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86 { |
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87 iKernelData=Kern::Alloc(total_data_size); |
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88 if (!iKernelData) |
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89 return KErrNoMemory; |
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90 ri.iDataRunAddr=(TLinAddr)iKernelData; |
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91 } |
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92 return KErrNone; |
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93 } |
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94 if (total_data_size && p) |
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95 SetAttachProcess(p); |
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96 if (total_data_size && !IsExe()) |
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97 { |
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98 TInt data_alloc_size=MM::RoundToBlockSize(total_data_size); |
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99 TInt r=MM::AllocRegion(iDataAlloc, data_alloc_size); |
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100 if (r!=KErrNone) |
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101 return r; |
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102 ri.iDataRunAddr=iDataAlloc; |
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103 } |
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104 return r; |
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105 } |
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106 |
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107 TInt DMemModelCodeSeg::DoCreateXIP(DProcess* aProcess) |
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108 { |
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109 __KTRACE_OPT(KDLL,Kern::Printf("DMemModelCodeSeg::DoCreateXIP %C proc %O", this, aProcess)); |
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110 DMemModelProcess* p=(DMemModelProcess*)aProcess; |
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111 TInt r=KErrNone; |
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112 TBool kernel=( (iAttr&(ECodeSegAttKernel|ECodeSegAttGlobal)) == ECodeSegAttKernel ); |
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113 const TRomImageHeader& rih=RomInfo(); |
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114 if (!kernel && aProcess) |
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115 { |
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116 // XIP images with static data are specific to a single process |
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117 if (rih.iFlags&KRomImageFlagDataPresent) |
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118 SetAttachProcess(p); |
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119 } |
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120 return r; |
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121 } |
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122 |
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123 TInt DMemModelCodeSeg::Loaded(TCodeSegCreateInfo& aInfo) |
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124 { |
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125 if (!iXIP) |
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126 { |
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127 // Clean DCache for specified area, Invalidate ICache/BTB for specified area |
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128 TLinAddr code_base=RamInfo().iCodeRunAddr; |
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129 Cache::IMB_Range(code_base, RamInfo().iCodeSize); |
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130 } |
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131 return DEpocCodeSeg::Loaded(aInfo); |
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132 } |
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133 |
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134 void DMemModelCodeSeg::ReadExportDir(TUint32* aDest) |
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135 { |
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136 __KTRACE_OPT(KDLL,Kern::Printf("DMemModelCodeSeg::ReadExportDir %08x",aDest)); |
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137 if (!iXIP) |
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138 { |
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139 SRamCodeInfo& ri=RamInfo(); |
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140 TInt size=(ri.iExportDirCount+1)*sizeof(TLinAddr); |
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141 kumemput32(aDest, (const TUint32*)(ri.iExportDir-sizeof(TUint32)), size); |
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142 } |
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143 } |
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144 |
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145 TBool DMemModelCodeSeg::OpenCheck(DProcess* aProcess) |
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146 { |
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147 return FindCheck(aProcess); |
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148 } |
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149 |
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150 TBool DMemModelCodeSeg::FindCheck(DProcess* aProcess) |
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151 { |
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152 __KTRACE_OPT(KDLL,Kern::Printf("CSEG:%08x Compat? proc=%O",this,aProcess)); |
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153 if (!aProcess) |
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154 return !iAttachProcess; // can't reuse same code segment for a new instance of the process |
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155 DMemModelProcess& p=*(DMemModelProcess*)aProcess; |
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156 DCodeSeg* pPSeg=p.CodeSeg(); |
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157 if (iAttachProcess && iAttachProcess!=aProcess) |
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158 return EFalse; |
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159 if (iExeCodeSeg && iExeCodeSeg!=pPSeg) |
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160 return EFalse; |
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161 __ASSERT_DEBUG( (iAttachProcess || !(iMark & EMarkDataPresent)), MM::Panic(MM::ECodeSegCheckInconsistent)); |
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162 return ETrue; |
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163 } |
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164 |