--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/imglib/e32image/e32image.cpp	Tue Oct 27 16:36:35 2009 +0000
@@ -0,0 +1,861 @@
+/*
+* Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+* e32tools/e32image/e32image.cpp
+* Basic operations on E32Image files which are used by ROMBUILD.
+* These are independent of the original file format from which the
+* E32Image file was derived.
+*
+*/
+
+
+#include <time.h>
+#include <malloc.h>
+#include <string.h>
+#include <stdlib.h>
+#include "h_utl.h"
+
+
+#if defined (__MSVCDOTNET__) || defined(__TOOLS2__)
+#include <fstream>
+#else //!__MSVCDOTNET__
+#include <fstream.h>
+#endif //__MSVCDOTNET__
+
+#include <assert.h>
+#ifndef __LINUX__
+  #include <io.h>
+#endif
+#include "h_ver.h"
+
+// get E32ImageHeader class...
+#define INCLUDE_E32IMAGEHEADER_IMPLEMENTATION
+#define RETURN_FAILURE(_r) return (fprintf(stderr, "line %d\n", __LINE__),_r)
+//#define E32IMAGEHEADER_TRACE(_t) printf _t
+#include "e32image.h"
+
+void DeflateCompress(char* bytes, TInt size, ostream& os);
+void InflateUnCompress(unsigned char* source, int sourcesize, unsigned char* dest, int destsize);
+void CompressPages(TUint8 * bytes, TInt size, ostream &os, CBytePair *aBPE);
+int  DecompressPages(TUint8 * bytes, istream& is, CBytePair *aBPE);
+
+// needed by E32ImageHeaderV::ValidateHeader...
+void Mem::Crc32(TUint32& aCrc, const TAny* aPtr, TInt aLength)
+	{
+	HMem::Crc32(aCrc, aPtr, aLength);
+	}
+
+//
+// E32 Image files
+//
+E32ImageFile::E32ImageFile(CBytePair *aBPE)
+	: iData(NULL), iSize(0), iOrigHdr(NULL), iHdr(NULL), iFileName(NULL)
+#ifndef __LINUX__
+	  , iWideFileName(NULL)
+#endif
+, iError(0), iSource(EE32Image), iOrigHdrOffsetAdj(0), iExportBitMap(0), iBPE(aBPE)
+	{
+        }
+
+E32ImageFile::~E32ImageFile()
+	{
+	free(iData);
+	delete [] iFileName;
+#ifndef __LINUX__
+	delete [] iWideFileName;
+#endif
+	if (iHdr && iHdr != iOrigHdr)
+		delete iHdr;
+	free(iExportBitMap);
+	}
+
+// dummy implementation
+TBool E32ImageFile::Translate(const char*, TUint, TBool, TBool)
+	{
+	return EFalse;
+	}
+
+Int64 timeToInt64(TInt aTime)
+	{
+	aTime-=(30*365*24*60*60+7*24*60*60);	// seconds since midnight Jan 1st, 2000
+	Int64 daysTo2000AD=730497;
+	Int64 t=daysTo2000AD*24*3600+aTime;	// seconds since 0000
+	t=t+3600;								// BST (?)
+	return t*1000000;						// milliseconds
+	}
+
+class TE32ImageUids : public TCheckedUid
+	{
+public:
+	TE32ImageUids(TUint32 aUid1, TUint32 aUid2, TUint32 aUid3) : TCheckedUid(TUidType(TUid::Uid(aUid1), TUid::Uid(aUid2), TUid::Uid(aUid3))) {}
+	TUint Check() { return TCheckedUid::Check(); }
+	};
+
+void E32ImageFile::SetDefaultHeader()
+	{
+	iHdr = (E32ImageHeaderV*)iOrigHdr;
+	iHdr->iUid1 = 0;
+	iHdr->iUid2 = 0;
+	iHdr->iUid3 = 0;
+	iHdr->iHeaderCrc = 0;
+	iHdr->iSignature = 0x434f5045u;
+	iHdr->iModuleVersion = 0x00010000u;
+	iHdr->iCompressionType = 0;
+	iHdr->iToolsVersion = TVersion(MajorVersion, MinorVersion, Build);
+	Int64 time1(timeToInt64(time(0))); 
+	iHdr->iTimeLo=(TUint32)time1;
+	iHdr->iTimeHi=(TUint32)(time1>>32);
+	iHdr->iFlags = KImageHdrFmt_V;
+	iHdr->iCodeSize = 0;
+	iHdr->iDataSize = 0;
+	iHdr->iHeapSizeMin = 0;
+	iHdr->iHeapSizeMax = 0;
+	iHdr->iStackSize = 0;
+	iHdr->iBssSize = 0;
+	iHdr->iEntryPoint = 0;
+	iHdr->iCodeBase = 0;
+	iHdr->iDataBase = 0;
+	iHdr->iDllRefTableCount = 0;
+	iHdr->iExportDirOffset = 0;
+	iHdr->iExportDirCount = 0;
+	iHdr->iTextSize = 0;
+	iHdr->iCodeOffset = 0;
+	iHdr->iDataOffset = 0;
+	iHdr->iImportOffset = 0;
+	iHdr->iCodeRelocOffset = 0;
+	iHdr->iDataRelocOffset = 0;
+	iHdr->iProcessPriority = (TUint16)EPriorityForeground;
+	iHdr->iUncompressedSize = 0;
+	iHdr->iS.iSecureId = 0;
+	iHdr->iS.iVendorId = 0;
+	iHdr->iExceptionDescriptor = 0;
+	iHdr->iSpare2 = 0;
+
+	iHdr->iExportDescSize = 0;
+	iHdr->iExportDescType = KImageHdr_ExpD_NoHoles;
+	iHdr->iExportDesc[0] = 0;
+	}
+
+void E32ImageFile::SetCallEntryPoints(TInt aBool)
+	{
+
+	if (aBool)
+		iHdr->iFlags&=~KImageNoCallEntryPoint;
+	else
+		iHdr->iFlags|=KImageNoCallEntryPoint;
+	}
+
+void E32ImageFile::SetFixedAddress(TInt aBool)
+	{
+
+	if (aBool)
+		iHdr->iFlags|=KImageFixedAddressExe;
+	else
+		iHdr->iFlags&=~KImageFixedAddressExe;
+	}
+
+void E32ImageFile::SetPriority(TProcessPriority aPri)
+	{
+
+	iHdr->iProcessPriority = (TUint16)aPri;
+	}
+
+void E32ImageFile::SetCapability(SCapabilitySet& aCapabilities)
+	{
+	iHdr->iS.iCaps = aCapabilities;
+	}
+
+void E32ImageFile::SetFPU(unsigned int aFPU)
+	{
+	iHdr->iFlags &=~ KImageHWFloatMask;
+
+	if (aFPU == 1)
+		iHdr->iFlags |= KImageHWFloat_VFPv2;
+	}
+
+void E32ImageFile::Adjust(TInt aSize, TBool aAllowShrink)
+//
+// Adjust the size of allocated data and fix the member data
+//
+	{
+
+	TInt asize = ALIGN4(aSize);
+	if (asize == iSize)
+		return;
+	if (iSize == 0)
+		{
+		iSize = asize;
+		iData = (char*)malloc(iSize);
+		memset(iData, 0, iSize);
+		}
+	else if (aAllowShrink || asize > iSize)
+		{
+		TInt oldsize = iSize;
+		iSize = asize;
+		iData = (char*)realloc(iData, iSize);
+		if (iSize > oldsize)
+			memset(iData+oldsize, 0, iSize-oldsize);
+		}
+	if (!iData)
+		iSize = 0;
+	if (iHdr && iHdr == iOrigHdr)
+		iHdr = (E32ImageHeaderV*)iData;
+	iOrigHdr = (E32ImageHeader*)iData;
+	}
+
+TInt E32ImageFile::ReadHeader(ifstream& is)
+	{
+	Adjust(sizeof(E32ImageHeader), EFalse);
+	is.read(iData, sizeof(E32ImageHeader));
+	TInt hdrsz = iOrigHdr->TotalSize();
+	if (hdrsz > 0x10000 || hdrsz <= 0)
+		return KErrCorrupt;	// sanity check
+	if (hdrsz > (TInt)sizeof(E32ImageHeader))
+		{
+		Adjust(hdrsz, EFalse);
+		is.read(iData+sizeof(E32ImageHeader), hdrsz-sizeof(E32ImageHeader));
+		}
+	TUint32 uncompressedSize;
+	TInt r = iOrigHdr->ValidateHeader(iFileSize,uncompressedSize);
+	if (r != KErrNone)
+		{
+		fprintf(stderr, "Integrity check failed %d\n", r);
+		return r;
+		}
+	iHdr = (E32ImageHeaderV*)iOrigHdr;
+	return KErrNone;
+	}
+
+void E32ImageFile::SetStackSize(TInt aSize)
+	{
+	iHdr->iStackSize=aSize;
+	}
+
+void E32ImageFile::SetHeapSizeMin(TInt aSize)
+	{
+	iHdr->iHeapSizeMin=aSize;
+	}
+
+void E32ImageFile::SetHeapSizeMax(TInt aSize)
+	{
+	iHdr->iHeapSizeMax=aSize;
+	}
+
+TUint E32ImageFile::TextOffset()
+//
+// Return the offset of the text section
+//
+	{
+	return 0;
+	}
+
+TUint E32ImageFile::DataOffset()
+//
+// return the offset of the initialised data
+//
+	{
+	return iHdr->iCodeSize;
+	}
+
+TUint E32ImageFile::BssOffset()
+//
+// return the offset from the start of code where the bss is linked
+//
+	{
+	return DataOffset()+iHdr->iDataSize;
+	}
+
+
+TInt E32ImageFile::IsDll()
+//
+//
+//
+	{
+	return iHdr->iFlags&KImageDll;
+	}
+
+
+void E32ImageFile::RelocateSection(char* aPtr, char* aRelocs, TUint aCodeDelta, TUint aDataDelta, char* aImagePtr, TLinAddr** aIATRefs, TBool keepIAT)
+//
+// Relocates the section data at aPtr
+//	
+	{
+
+	TUint codeStart=iHdr->iCodeBase;
+	TUint codeFinish=codeStart+iHdr->iCodeSize;
+	TUint iatStart = aIATRefs ? codeStart+iHdr->iTextSize : 0;
+	TUint iatFinish = aIATRefs ? iatStart+NumberOfImports()*sizeof(TUint) : 0;
+	char* relocs=aRelocs;
+	TUint page=0;
+	TInt size=0;
+	TInt i=((E32RelocSection *)relocs)->iNumberOfRelocs;
+	relocs+=sizeof(E32RelocSection);
+	while (i>0)
+		{
+		if (size>0)
+			{
+			TUint offset=*(TUint16 *)relocs;
+			relocs+=2;
+			if (offset!=0)
+				{ // its a reloc
+				TUint va=page+(offset&0x0fff);
+				TUint relocType=offset&0xf000;
+				TUint *dataptr=(TUint *)(aPtr+va);
+				assert((char *)dataptr < aRelocs);
+				TUint data=*dataptr;
+				if (relocType == KTextRelocType) 
+					*dataptr=data+aCodeDelta; // points to text/rdata section
+				else if (relocType == KDataRelocType)
+					*dataptr=data+aDataDelta;
+				else 
+					{
+					if (relocType != KInferredRelocType)
+						Print(EError,"Unrecognized relocation type %x\n",relocType);
+
+					if (data>=iatStart && data<iatFinish)
+						{
+
+						TUint iatNum = (data-iatStart)/sizeof(TLinAddr);
+
+						// If "keepIAT" is used then the importing instruction must import through the IAT entry,
+						// but otherwise we change the IAT entry to point to the bit of code doing the importing
+						// and do the real fix-up later on in TRomBuilderEntry::FixupImports.
+						// NB: We always want to do this for X86 or data exports dont work.
+						if (keepIAT || (iHdr->iCpuIdentifier & 0x1000) /*denotes X86*/) 
+							*dataptr=data+aCodeDelta; 
+						else 
+							{
+							if ((TUint)aIATRefs[iatNum]>65535)
+								Print(EWarning, "Multiple relocations for IAT entry %d (0x%x, 0x%x)\n",
+										iatNum, aIATRefs[iatNum], dataptr);
+							else
+								aIATRefs[iatNum] = (TLinAddr*)(aImagePtr+va);	// ROM image address of importing pointer					
+							}
+						}
+					else if (data>=codeStart && data<codeFinish)
+						*dataptr=data+aCodeDelta; // points to text/rdata section
+					else
+						*dataptr=data+aDataDelta; // points to data section
+					}
+				--i;
+				}
+			size-=2;
+			}
+		else
+			{ // next page of relocs
+			page=*(TUint *)relocs;
+			relocs+=4;
+			size=*(TUint *)relocs;
+			relocs+=4;
+			size-=8;
+			}
+		}
+	}
+
+void E32ImageFile::SetUids(TUid aUid1, TUid aUid2, TUid aUid3)
+	{
+	iHdr->iUid1=aUid1.iUid;
+	iHdr->iUid2=aUid2.iUid;
+	iHdr->iUid3=aUid3.iUid;
+	}
+
+void E32ImageFile::SetSecureId(TUint32 aId)
+	{
+	((E32ImageHeaderV*)iHdr)->iS.iSecureId = aId;
+	}
+
+void E32ImageFile::SetVendorId(TUint32 aId)
+	{
+	((E32ImageHeaderV*)iHdr)->iS.iVendorId = aId;
+	}
+
+void E32ImageFile::UpdateHeaderCrc()
+	{
+	TE32ImageUids u(iHdr->iUid1, iHdr->iUid2, iHdr->iUid3);
+	iHdr->iUidChecksum = u.Check();
+	TInt hdrsz = iHdr->TotalSize();
+	TInt orighdrsz = iOrigHdr->TotalSize();
+	iHdr->iUncompressedSize = iSize - orighdrsz;
+	iHdr->iHeaderCrc = KImageCrcInitialiser;
+	TUint32 crc = 0;
+	HMem::Crc32(crc, iHdr, hdrsz);
+	iHdr->iHeaderCrc = crc;
+	}
+
+TInt E32ImageFile::NumberOfImports()
+//
+// Return the number of imports made by this image
+//
+	{
+
+	if (iHdr->iDllRefTableCount==0 || iHdr->iImportOffset==0)
+		return 0;
+
+	TUint impfmt = iHdr->ImportFormat();
+	const E32ImportSection* isection = (const E32ImportSection*)(iData + iOrigHdr->iImportOffset);
+	TInt d;
+	TInt nImports = 0;
+	const E32ImportBlock* b = (const E32ImportBlock*)(isection+1);
+	for (d=0; d<iHdr->iDllRefTableCount; d++)
+		{
+		nImports += b->iNumberOfImports;
+		b = b->NextBlock(impfmt);
+		}
+
+	if (impfmt==KImageImpFmt_PE || impfmt==KImageImpFmt_PE2)
+		{
+		TUint *imports=(TUint *)(iData + iOrigHdr->iCodeOffset + iHdr->iTextSize);
+		TInt i=0;
+		while (*imports++)
+			i++;
+		assert(i==nImports);
+		}
+	
+	return nImports;
+	}
+
+// Work out which exports are missing from the export directory
+void E32ImageFile::CreateExportBitMap()
+	{
+	TInt nexp = iOrigHdr->iExportDirCount;
+	TInt memsz = (nexp + 7) >> 3;
+	iExportBitMap = (TUint8*)malloc(memsz);
+	memset(iExportBitMap, 0xff, memsz);
+	TUint* exports = (TUint*)(iData + iOrigHdr->iExportDirOffset);
+	TUint absoluteEntryPoint = iOrigHdr->iEntryPoint + iOrigHdr->iCodeBase;
+	TUint impfmt = iOrigHdr->ImportFormat();
+	TUint hdrfmt = iOrigHdr->HeaderFormat();
+	TUint absentVal = (impfmt == KImageImpFmt_ELF) ? absoluteEntryPoint : iOrigHdr->iEntryPoint;
+	TInt i;
+	iMissingExports = 0;
+	for (i=0; i<nexp; ++i)
+		{
+		if (exports[i] == absentVal)
+			{
+			iExportBitMap[i>>3] &= ~(1u << (i & 7));
+			++iMissingExports;
+			}
+		}
+	if (hdrfmt < KImageHdrFmt_V && iMissingExports)
+		{
+		fprintf(stderr, "Bad exports\n");
+		exit(999);
+		}
+	}
+
+// Append an export description to the E32ImageHeader if necessary
+void E32ImageFile::AddExportDescription()
+	{
+	if (iMissingExports == 0)
+		return;	// nothing to do
+	TInt nexp = iOrigHdr->iExportDirCount;
+	TInt memsz = (nexp + 7) >> 3;	// size of complete bitmap
+	TInt mbs = (memsz + 7) >> 3;	// size of meta-bitmap
+	TInt nbytes = 0;
+	TInt i;
+	for (i=0; i<memsz; ++i)
+		if (iExportBitMap[i] != 0xff)
+			++nbytes;				// number of groups of 8
+	TUint8 edt = KImageHdr_ExpD_FullBitmap;
+	TInt extra_space = memsz - 1;
+	if (mbs + nbytes < memsz)
+		{
+		edt = KImageHdr_ExpD_SparseBitmap8;
+		extra_space = mbs + nbytes - 1;
+		}
+	extra_space = (extra_space + sizeof(TUint) - 1) &~ (sizeof(TUint) - 1);
+	TInt hdrsz = sizeof(E32ImageHeaderV) + extra_space;
+	iHdr = (E32ImageHeaderV*)malloc(hdrsz);
+	memcpy(iHdr, iOrigHdr, sizeof(E32ImageHeaderV));
+	iHdr->iExportDescType = edt;
+	if (edt == KImageHdr_ExpD_FullBitmap)
+		{
+		iHdr->iExportDescSize = (TUint16)memsz;
+		memcpy(iHdr->iExportDesc, iExportBitMap, memsz);
+		}
+	else
+		{
+		iHdr->iExportDescSize = (TUint16)(mbs + nbytes);
+		memset(iHdr->iExportDesc, 0, extra_space + 1);
+		TUint8* mptr = iHdr->iExportDesc;
+		TUint8* gptr = mptr + mbs;
+		for (i=0; i<memsz; ++i)
+			{
+			if (iExportBitMap[i] != 0xff)
+				{
+				mptr[i>>3] |= (1u << (i&7));
+				*gptr++ = iExportBitMap[i];
+				}
+			}
+		}
+	iHdr->iCodeOffset += extra_space;
+	if (iHdr->iDataOffset)
+		iHdr->iDataOffset += extra_space;
+	if (iHdr->iCodeRelocOffset)
+		iHdr->iCodeRelocOffset += extra_space;
+	if (iHdr->iDataRelocOffset)
+		iHdr->iDataRelocOffset += extra_space;
+	if (iHdr->iImportOffset)
+		iHdr->iImportOffset += extra_space;
+	if (iHdr->iExportDirOffset)
+		iHdr->iExportDirOffset += extra_space;
+	}
+
+// Check the export description is consistent with the export directory
+TInt E32ImageFile::CheckExportDescription()
+	{
+	TUint hdrfmt = iOrigHdr->HeaderFormat();
+	if (hdrfmt < KImageHdrFmt_V && iMissingExports)
+		return KErrCorrupt;
+	if (iHdr->iExportDescType == KImageHdr_ExpD_NoHoles)
+		{
+		return iMissingExports ? KErrCorrupt : KErrNone;
+		}
+	TInt nexp = iOrigHdr->iExportDirCount;
+	TInt memsz = (nexp + 7) >> 3;	// size of complete bitmap
+	TInt mbs = (memsz + 7) >> 3;	// size of meta-bitmap
+	TInt eds = iHdr->iExportDescSize;
+	if (iHdr->iExportDescType == KImageHdr_ExpD_FullBitmap)
+		{
+		if (eds != memsz)
+			return KErrCorrupt;
+		if (memcmp(iHdr->iExportDesc, iExportBitMap, eds) == 0)
+			return KErrNone;
+		return KErrCorrupt;
+		}
+	if (iHdr->iExportDescType != KImageHdr_ExpD_SparseBitmap8)
+		return KErrNotSupported;
+	TInt nbytes = 0;
+	TInt i;
+	for (i=0; i<memsz; ++i)
+		if (iExportBitMap[i] != 0xff)
+			++nbytes;				// number of groups of 8
+	TInt exp_extra = mbs + nbytes;
+	if (eds != exp_extra)
+		return KErrCorrupt;
+	const TUint8* mptr = iHdr->iExportDesc;
+	const TUint8* gptr = mptr + mbs;
+	for (i=0; i<memsz; ++i)
+		{
+		TUint mbit = mptr[i>>3] & (1u << (i&7));
+		if (iExportBitMap[i] != 0xff)
+			{
+			if (!mbit || *gptr++ != iExportBitMap[i])
+				return KErrCorrupt;
+			}
+		else if (mbit)
+			return KErrCorrupt;
+		}
+	return KErrNone;
+	}
+
+
+TInt E32ImageFile::Validate()
+	{
+	TInt orighdrsz = iOrigHdr->TotalSize();
+	TInt r = iHdr->ValidateWholeImage(iData+orighdrsz,iSize-orighdrsz);
+	if(r!=KErrNone)
+		return r;
+	return r;
+	}
+
+
+ostream& operator<<(ostream& os, const E32ImageFile& aImage)
+//
+// Output an E32ImageFile
+//
+	{
+	E32ImageHeaderV* h = aImage.iHdr;
+	TUint hdrfmt = h->HeaderFormat();
+	if (hdrfmt != KImageHdrFmt_V)
+		return os;	// don't generate old binary formats
+	TInt hdrsz = h->TotalSize();
+	TInt orighdrsz = aImage.iOrigHdr->TotalSize();
+
+	os.write((const char*)aImage.iHdr, hdrsz);
+
+	TUint compression = h->CompressionType();
+	if (compression == KUidCompressionDeflate)
+		{
+		int srcsize = aImage.iSize - orighdrsz;
+		DeflateCompress(aImage.iData + orighdrsz, srcsize, os);
+		}
+	else if (compression == KUidCompressionBytePair)
+		{
+		// Compress and write out code part
+		int srcStart = orighdrsz;
+		CompressPages( (TUint8*)aImage.iData + srcStart, aImage.iOrigHdr->iCodeSize, os, aImage.iBPE);
+		
+		
+		// Compress and write out data part
+		srcStart += aImage.iOrigHdr->iCodeSize;
+		int srcLen = aImage.iSize - srcStart;
+
+		CompressPages((TUint8*)aImage.iData + srcStart, srcLen, os, aImage.iBPE);		
+
+		}
+	else if (compression == KFormatNotCompressed)
+		{
+		int srcsize = aImage.iSize - orighdrsz;
+		os.write(aImage.iData + orighdrsz, srcsize); // image not to be compressed
+		}
+	return os;
+	}
+
+ifstream& operator>>(ifstream& is, E32ImageFile& aImage)
+//
+// Input an E32ImageFile
+//
+	{
+	aImage.iError = aImage.ReadHeader(is);
+	if (aImage.iError != KErrNone)
+		return is;
+	E32ImageHeader* oh = aImage.iOrigHdr;
+	TInt orighdrsz = oh->TotalSize();
+	int remainder = aImage.iSize - orighdrsz;
+	TUint compression = oh->CompressionType();
+	if (compression == 0)
+		{
+		is.read(aImage.iData + orighdrsz, remainder);
+		}
+	else if (compression == KUidCompressionDeflate)
+		{ //Uncompress
+		aImage.iError = KErrNoMemory;
+		unsigned int uncompsize = ((E32ImageHeaderComp*)aImage.iOrigHdr)->iUncompressedSize;
+		aImage.Adjust(uncompsize + orighdrsz);
+		if (aImage.iData==NULL)
+			return is;
+		oh = aImage.iOrigHdr;
+		unsigned char* compressedData = new unsigned char[remainder];
+		if (compressedData==NULL)
+			return is;
+		is.read(reinterpret_cast<char *>(compressedData), remainder);
+		unsigned int destsize = uncompsize;
+		InflateUnCompress( compressedData, remainder, (unsigned char*)(aImage.iData + orighdrsz), destsize);
+		if (destsize != uncompsize)
+			Print(EWarning, "Inconsistent sizes discovered during uncompression.\n");
+		delete [] compressedData;
+		if ((TUint)orighdrsz > oh->iCodeOffset)
+			{
+			// need to adjust code offsets in original
+			aImage.iOrigHdrOffsetAdj = (TUint)orighdrsz - oh->iCodeOffset;
+			aImage.OffsetAdjust(oh->iCodeOffset);
+			aImage.OffsetAdjust(oh->iDataOffset);
+			aImage.OffsetAdjust(oh->iCodeRelocOffset);
+			aImage.OffsetAdjust(oh->iDataRelocOffset);
+			aImage.OffsetAdjust(oh->iImportOffset);
+			aImage.OffsetAdjust(oh->iExportDirOffset);
+			}
+		aImage.iError = KErrNone;
+		}
+	else if(compression == KUidCompressionBytePair)
+	{ // Uncompress
+		aImage.iError = KErrNoMemory;
+		unsigned int uncompsize = ((E32ImageHeaderComp*)aImage.iOrigHdr)->iUncompressedSize;
+		aImage.Adjust(uncompsize + orighdrsz);
+		if (aImage.iData==NULL)
+			return is;
+		oh = aImage.iOrigHdr;
+
+		// Read and decompress code part of the image
+
+		unsigned int uncompressedCodeSize = DecompressPages((TUint8 *) (aImage.iData + orighdrsz), is, aImage.iBPE);
+
+		
+		// Read and decompress data part of the image
+
+		unsigned int uncompressedDataSize = DecompressPages((TUint8 *) (aImage.iData + orighdrsz + uncompressedCodeSize), is, aImage.iBPE);
+
+		if (uncompressedCodeSize + uncompressedDataSize != uncompsize)
+			Print(EWarning, "Inconsistent sizes discovered during uncompression.\n");
+
+		if ((TUint)orighdrsz > oh->iCodeOffset)
+			{
+			// need to adjust code offsets in original
+			aImage.iOrigHdrOffsetAdj = (TUint)orighdrsz - oh->iCodeOffset;
+			aImage.OffsetAdjust(oh->iCodeOffset);
+			aImage.OffsetAdjust(oh->iDataOffset);
+			aImage.OffsetAdjust(oh->iCodeRelocOffset);
+			aImage.OffsetAdjust(oh->iDataRelocOffset);
+			aImage.OffsetAdjust(oh->iImportOffset);
+			aImage.OffsetAdjust(oh->iExportDirOffset);
+			}
+		aImage.iError = KErrNone;
+	}
+	aImage.CreateExportBitMap();
+	return is;
+	}
+
+TInt E32ImageFile::IsE32ImageFile(char *aFileName)
+	{
+
+#ifdef __LINUX__
+	E32ImageFile f;
+	struct stat buf;
+	if (stat(aFileName, &buf) < 0) 
+		{
+		return FALSE;
+		}
+	f.iFileSize = buf.st_size;
+#else
+	_finddata_t fileinfo;
+	int ret=_findfirst((char *)aFileName,&fileinfo);
+	if (ret==-1) 
+		return FALSE;
+	E32ImageFile f;
+	f.iFileSize = fileinfo.size;
+#endif
+	ifstream ifile(aFileName, ios::in | ios::binary);
+	if(!ifile.is_open())
+		return FALSE;
+	TInt r = f.ReadHeader(ifile);
+	ifile.close();
+	return (r == KErrNone);
+	}
+
+TInt E32ImageFile::IsValid()
+	{
+	return (iError == KErrNone);
+	}
+
+TInt E32ImageFile::Open(const char* aFileName)
+//
+// Open an E32 Image file
+//
+	{
+#ifdef __LINUX__
+	struct stat buf;
+	if (stat(aFileName, &buf) < 0) 
+		{
+		Print(EError,"Cannot open %s for input.\n",aFileName);
+		return 1;
+		}
+	iFileSize = buf.st_size;
+#else
+	_finddata_t fileinfo;
+	int ret=_findfirst((char *)aFileName,&fileinfo);
+	if (ret==-1) 
+		{
+		Print(EError,"Cannot open %s for input.\n",aFileName);
+		return 1;
+		}
+	iFileSize = fileinfo.size;
+#endif
+	Adjust(iFileSize);
+	ifstream ifile((char *)aFileName, ios::in | ios::binary);
+	if(!ifile.is_open())
+		{
+		Print(EError,"Cannot open %s for input.\n",aFileName);
+		return 1;
+		}
+	ifile >> *this;
+	ifile.close();
+	if (iError != KErrNone)
+		return iError;
+	iFileName=strdup((char *)aFileName);
+	if (iFileName==NULL)
+		return KErrNoMemory;
+	return KErrNone;
+	}
+
+#ifndef __LINUX__
+TInt E32ImageFile::Open(const wchar_t* aFileName)
+//
+// Open an E32 Image file
+//
+	{
+	_wfinddata_t fileinfo;
+	int ret=_wfindfirst(aFileName,&fileinfo);
+	if (ret==-1) 
+		{
+		Print(EError,"Cannot open %ls for input.\n",aFileName);
+		return 1;
+		}
+	iFileSize = fileinfo.size;
+	Adjust(iFileSize);
+
+	FILE* file = _wfopen(aFileName, L"rb");
+
+	if(!file)
+		{
+		Print(EError,"Cannot open %ls for input.\n",aFileName);
+		return 1;
+		}
+	
+	#if defined(__TOOLS2__) || defined(__MSVCDOTNET__)
+	char tmp[100];  				// Convert wide character name to char *, then open a file.
+	wcstombs(tmp,aFileName,100);
+	ifstream ifile(tmp, ios::in | ios::binary);
+	#else
+	ifstream ifile(fileno(file));
+	#endif
+	
+	if(!ifile.is_open())
+		{
+		Print(EError,"Cannot open %ls for input,\n",aFileName);
+		return 1;
+		}
+		
+	ifile >> *this;
+	ifile.close();
+	fclose(file);
+	if (iError != KErrNone)
+		return iError;
+	iWideFileName=wcsdup(aFileName);
+	if (iWideFileName==NULL)
+		return KErrNoMemory;
+	return KErrNone;
+	}
+#endif
+
+TUint E32ImageFile::VaOfOrdinal(TUint aOrdinal)
+// return the offset of the exported symbol
+	{
+	TUint* exportdir = (TUint*)(iData + iOrigHdr->iExportDirOffset);
+	return exportdir[aOrdinal-KOrdinalBase];
+	}
+
+// Determine the type of entry point in this module and set the flags
+// in the E32Image header accordingly.
+TInt E32ImageFile::DetermineEntryPointType()
+	{
+	TUint cpu = iHdr->CpuIdentifier();
+	if (cpu != ECpuArmV4 && cpu != ECpuArmV5)
+		return KErrNone;	// if not ARM, leave EPT as 0
+	TUint epOffset = iHdr->iEntryPoint;
+	if (epOffset & 3)
+		return KErrNone;	// if entry point not 4 byte aligned, must be old style
+	TUint fileOffset = epOffset + iHdr->iCodeOffset;
+	if (fileOffset+4 > (TUint)iSize)
+		return KErrCorrupt;	// entry point is past the end of the file??
+	TInt ept = 0;			// old style if first instruction not recognised
+	unsigned char* p = (unsigned char*)iData + fileOffset + 4;
+	TUint32 x = *--p;
+	x<<=8;
+	x|=*--p;
+	x<<=8;
+	x|=*--p;
+	x<<=8;
+	x|=*--p;
+	if ((x & 0xffffff00) == 0xe31f0000)
+		{
+		// starts with tst pc, #n - new entry point
+		ept = (x & 0xff) + 1;
+		}
+	if (ept>7)
+		return KErrNotSupported;
+	iHdr->iFlags |= (ept<<KImageEptShift);
+	return KErrNone;
+	}
+