author | timothy.murphy@nokia.com |
Fri, 11 Dec 2009 18:05:16 +0000 (2009-12-11) | |
branch | wip |
changeset 97 | 3127d8e83e30 |
parent 0 | 044383f39525 |
child 590 | 360bd6b35136 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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#include <time.h> |
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#include <malloc.h> |
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#include <string.h> |
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#include "elftran.h" |
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#include <e32std.h> |
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#include <elfdefs.h> |
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#include "elffile.h" |
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#include <h_ver.h> |
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#include <h_utl.h> |
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extern TUid gUid1, gUid2, gUid3; |
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extern int gSetUid1, gSetUid2, gSetUid3; |
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int gAlignConstSection=FALSE; |
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TUint gConstSectionAddressMask=0; |
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|
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E32ImageFile* E32ImageFile::New() |
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{ |
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return new E32ImageFile_ELF; |
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} |
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E32ImageFile_ELF::E32ImageFile_ELF() |
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{ |
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} |
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E32ImageFile_ELF::~E32ImageFile_ELF() |
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{ |
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} |
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TInt E32ImageFile_ELF::DoCodeHeader(ELFFile &aElfFile) |
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// |
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// Calculate the code parts of the ELFFile |
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// |
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{ |
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|
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TInt size=ALIGN4(aElfFile.GetCodeSize()); |
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iHdr->iCodeSize = iHdr->iTextSize = size; |
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// make it the offset from the beginning of the file..... |
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if(iHdr->iExportDirCount==0) |
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iHdr->iExportDirOffset = 0; |
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else |
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iHdr->iExportDirOffset = aElfFile.GetExportTableOffset() + iHdr->iCodeOffset; |
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return size; |
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} |
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TInt E32ImageFile_ELF::DoDataHeader(ELFFile &aElfFile, TUint aDataBase) |
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{ |
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|
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if (aDataBase==0 && aElfFile.iDataSegmentHdr) |
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aDataBase=aElfFile.iDataSegmentHdr->p_vaddr; |
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TInt size=0; |
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|
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iHdr->iDataBase=aDataBase; |
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|
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if (aElfFile.HasInitialisedData()) |
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{ |
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size=ALIGN4(aElfFile.GetDataSize()); |
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iHdr->iDataOffset = iHdr->iCodeOffset + iHdr->iCodeSize; |
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iHdr->iDataSize = size; |
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} |
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if (aElfFile.HasBssData()) |
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{ |
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iHdr->iBssSize = ALIGN4(aElfFile.GetBssSize()); |
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} |
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return size; |
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} |
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TInt E32ImageFile_ELF::CopyCode(char *p, ELFFile &aElfFile) |
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// |
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// Copies the files code sections to p |
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// returns the number of bytes copied or KErrGeneral |
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// |
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{ |
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TInt size=aElfFile.GetCodeSize(); |
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memcpy(p, (char *)aElfFile.GetCode(), size); |
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p+=ALIGN4(size); |
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return iHdr->iCodeSize = size; |
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} |
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TInt E32ImageFile_ELF::CopyData(char *p, ELFFile &aElfFile) |
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{ |
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TInt size=aElfFile.GetDataSize(); |
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if (size) memcpy(p, (char *)aElfFile.GetData(), size); |
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return size; |
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} |
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TInt E32ImageFile_ELF::Translate(const char* aFileName, TUint aDataBase, TBool aAllowDllData, \ |
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TBool aSymLkupEnabled) |
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// |
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// Translate a ELF format file to a E32Image file |
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// |
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|
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{ |
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iSource = EElfFile; |
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ELFFile elffile; |
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if (!elffile.Init((const TText * const)aFileName)) return KErrGeneral; |
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|
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iFileName = strdup(aFileName); |
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|
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Adjust(ALIGN4(sizeof(E32ImageHeaderV))); // fixed for now because holes not supported |
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SetDefaultHeader(); |
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iHdr->iDllRefTableCount = elffile.NumberOfImportDlls(); |
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iHdr->iExportDirCount = elffile.NumberOfExports(); |
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iHdr->iCodeBase = elffile.iLinkedBase; |
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|
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if(aSymLkupEnabled) |
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{ |
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if( !SetUpLookupTable(elffile) ) |
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return KErrGeneral; |
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|
129 |
} |
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|
130 |
|
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changeset
|
131 |
|
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|
132 |
TInt size = ALIGN4(sizeof(E32ImageHeaderV)); // fixed for now because holes not supported |
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|
133 |
iHdr->iCodeOffset = size; |
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|
134 |
TInt pos = size; |
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|
135 |
size+=DoCodeHeader(elffile); |
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changeset
|
136 |
|
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|
137 |
size += DoSymbolLookupHeader(elffile, size - pos); |
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|
138 |
|
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|
139 |
TInt nimports=elffile.NumberOfImports(); |
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|
140 |
TInt importSectionSize; |
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|
141 |
char *newImportSection=CreateImportSection(elffile, importSectionSize); |
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changeset
|
142 |
|
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|
143 |
TInt t=DoDataHeader(elffile, aDataBase); |
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|
144 |
if (t>0) |
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|
145 |
{ |
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|
146 |
iHdr->iDataOffset = size; |
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|
147 |
size += t; |
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|
148 |
} |
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|
149 |
if (importSectionSize!=0) |
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|
150 |
{ |
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|
151 |
iHdr->iImportOffset=size; |
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|
152 |
size+=ALIGN4(importSectionSize); |
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|
153 |
} |
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|
154 |
|
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|
155 |
char *newCodeRelocs=NULL; |
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|
156 |
char *newDataRelocs=NULL; |
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|
157 |
TInt codeRelocSize=0, dataRelocSize=0; |
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|
158 |
TInt nCodeRelocs=elffile.NumberOfCodeRelocs(); |
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|
159 |
TInt nDataRelocs=elffile.NumberOfDataRelocs(); |
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|
160 |
if (nCodeRelocs + nDataRelocs) |
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|
161 |
{ |
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|
162 |
Elf32_Rel **codeRelocs=new Elf32_Rel * [nCodeRelocs]; |
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|
163 |
Elf32_Rel **dataRelocs=new Elf32_Rel * [nDataRelocs]; |
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|
164 |
if (!elffile.GetRelocs(codeRelocs, dataRelocs)) return KErrGeneral; |
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|
165 |
|
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|
166 |
FixRelocs(elffile, codeRelocs, dataRelocs); |
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|
167 |
if (elffile.iCodeSegmentHdr) |
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|
168 |
newCodeRelocs=CreateRelocs(elffile, codeRelocs, nCodeRelocs, codeRelocSize, elffile.iCodeSegmentHdr->p_vaddr); |
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|
169 |
if (elffile.iDataSegmentHdr) |
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|
170 |
newDataRelocs=CreateRelocs(elffile, dataRelocs, nDataRelocs, dataRelocSize, elffile.iDataSegmentHdr->p_vaddr); |
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|
171 |
if (codeRelocSize) |
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|
172 |
{ |
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|
173 |
iHdr->iCodeRelocOffset = size; |
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|
174 |
size += codeRelocSize; |
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|
175 |
} |
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|
176 |
if (dataRelocSize) |
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changeset
|
177 |
{ |
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|
178 |
iHdr->iDataRelocOffset = size; |
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|
179 |
size += dataRelocSize; |
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|
180 |
} |
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|
181 |
delete [] codeRelocs; |
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|
182 |
delete [] dataRelocs; |
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changeset
|
183 |
} |
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changeset
|
184 |
|
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|
185 |
Adjust(size); |
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|
186 |
t=CopyCode(iData + pos, elffile); |
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|
187 |
if (t<0) |
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|
188 |
return KErrGeneral; |
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|
189 |
pos += t; |
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changeset
|
190 |
t = CopyExportSymInfo(iData+pos, elffile); |
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changeset
|
191 |
if (t<0) |
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changeset
|
192 |
return KErrGeneral; |
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diff
changeset
|
193 |
pos += t; |
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parents:
diff
changeset
|
194 |
|
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changeset
|
195 |
pos += CopyData(iData + pos, elffile); |
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changeset
|
196 |
if (nimports) |
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changeset
|
197 |
{ |
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changeset
|
198 |
memcpy(iData + pos, newImportSection, importSectionSize); |
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changeset
|
199 |
pos += ALIGN4(importSectionSize); |
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changeset
|
200 |
} |
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diff
changeset
|
201 |
if (codeRelocSize) |
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parents:
diff
changeset
|
202 |
{ |
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diff
changeset
|
203 |
memcpy(iData + pos, newCodeRelocs, codeRelocSize); |
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diff
changeset
|
204 |
pos += codeRelocSize; |
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
205 |
} |
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
206 |
if (dataRelocSize) |
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parents:
diff
changeset
|
207 |
{ |
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parents:
diff
changeset
|
208 |
memcpy(iData + pos, newDataRelocs, dataRelocSize); |
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
209 |
pos += dataRelocSize; |
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
210 |
} |
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
211 |
|
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diff
changeset
|
212 |
// locate the entry point |
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changeset
|
213 |
TUint entryPointOffset=elffile.GetEntryPointOffset(); |
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parents:
diff
changeset
|
214 |
|
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
215 |
// Arrange a header for this E32 Image |
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parents:
diff
changeset
|
216 |
iHdr->iCpuIdentifier = (TUint16)ECpuArmV4; |
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changeset
|
217 |
// Import format is ELF-derived |
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changeset
|
218 |
iHdr->iFlags |= KImageImpFmt_ELF; |
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changeset
|
219 |
// ABI is ARM EABI |
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parents:
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changeset
|
220 |
iHdr->iFlags |= KImageABI_EABI; |
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parents:
diff
changeset
|
221 |
if (ImageIsDll(elffile)) |
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changeset
|
222 |
{ |
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changeset
|
223 |
iHdr->iFlags |= KImageDll; |
044383f39525
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
224 |
if (iHdr->iDataSize && !aAllowDllData) |
044383f39525
Convert Build package from SFL to EPL
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parents:
diff
changeset
|
225 |
return Print(EError, "Dll '%s' has initialised data.\n", iFileName); |
044383f39525
Convert Build package from SFL to EPL
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parents:
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changeset
|
226 |
if (iHdr->iBssSize && !aAllowDllData) |
044383f39525
Convert Build package from SFL to EPL
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diff
changeset
|
227 |
return Print(EError, "Dll '%s' has uninitialised data.\n", iFileName); |
044383f39525
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parents:
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changeset
|
228 |
} |
044383f39525
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
229 |
iHdr->iHeapSizeMin = elffile.iHeapCommittedSize; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
230 |
iHdr->iHeapSizeMax = elffile.iHeapReservedSize; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
231 |
iHdr->iStackSize = elffile.iStackCommittedSize; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
232 |
iHdr->iEntryPoint = entryPointOffset; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
233 |
TInt r = DetermineEntryPointType(); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
234 |
if (r == KErrCorrupt) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
235 |
return Print(EError, "File '%s': Bad Entry Point.\n", iFileName); |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
236 |
else if (r == KErrNotSupported) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
237 |
return Print(EError, "File '%s': Bad Entry Point Type.\n", iFileName); |
044383f39525
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parents:
diff
changeset
|
238 |
|
044383f39525
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
239 |
SetUpExceptions(elffile); |
044383f39525
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
240 |
|
044383f39525
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
241 |
delete [] newImportSection; |
044383f39525
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
242 |
delete [] newCodeRelocs; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
243 |
delete [] newDataRelocs; |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
244 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
245 |
return KErrNone; |
044383f39525
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
246 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
247 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
248 |
TBool E32ImageFile_ELF::Translate(ELFFile &aElfFile) |
044383f39525
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parents:
diff
changeset
|
249 |
{ |
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
250 |
// VT fix for warning |
044383f39525
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
251 |
// fix warning in Linux |
044383f39525
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Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
252 |
return Translate((const char*)aElfFile.iFileName, 0, EFalse); |
044383f39525
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parents:
diff
changeset
|
253 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
254 |
|
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
255 |
TBool E32ImageFile_ELF::ImageIsDll(ELFFile& aElfFile) |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
diff
changeset
|
256 |
{ |
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return aElfFile.ImageIsDll(); |
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} |
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void E32ImageFile_ELF::SetUpExceptions(ELFFile &aElfFile) |
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{ |
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aElfFile.GetExceptionIndexInfo(iHdr->iExceptionDescriptor); |
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} |
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|
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void E32ImageFile_ELF::SetSymNameLookup(TInt aSymNameLkupEnabled) |
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{ |
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if(aSymNameLkupEnabled) |
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iHdr->iFlags |= KImageNmdExpData; |
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else |
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iHdr->iFlags &= ~KImageNmdExpData; |
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} |
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TBool E32ImageFile_ELF::IsNamedLookupEnabled() |
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{ |
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return (iHdr->iFlags & KImageNmdExpData); |
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} |
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|
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TBool E32ImageFile_ELF::SetUpLookupTable(ELFFile &aElfFile) |
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// Symbol lookup by name is enabled. Create the symbol table with names |
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// and their values. |
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{ |
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if(!aElfFile.SetUpLookupTable() ) |
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return FALSE; |
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SetSymNameLookup(TRUE); |
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return TRUE; |
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} |
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|
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// Build the infrastructure for symbol lookup via name |
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TInt E32ImageFile_ELF::DoSymbolLookupHeader(ELFFile &aElfFile, TInt aBaseOffset) |
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{ |
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if(!IsNamedLookupEnabled()) |
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return 0; |
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|
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aElfFile.SetLookupTblBase(aBaseOffset); |
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return aElfFile.GetLookupTblSize(); |
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} |
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TUint E32ImageFile_ELF::CopyExportSymInfo(char *p, ELFFile &aElfFile) |
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{ |
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iHdr->iCodeSize += aElfFile.GetLookupTblSize(); |
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iHdr->iTextSize = iHdr->iCodeSize ; |
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return aElfFile.GetSymLookupSection(p); |
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} |