private static TablesHeader/*!*/ ReadTablesHeader(MemoryCursor/*!*/ c)
{
TablesHeader header = new TablesHeader();
header.reserved = c.ReadInt32(); // Must be zero
header.majorVersion = c.ReadByte(); // Must be one
header.minorVersion = c.ReadByte(); // Must be zero
header.heapSizes = c.ReadByte(); // Bits for heap sizes
header.rowId = c.ReadByte(); // log-base-2 of largest rowId
header.maskValid = c.ReadInt64(); // Present table counts
header.maskSorted = c.ReadInt64(); // Sorted tables
int n = 0;
ulong mask = (ulong)header.maskValid;
while (mask != 0)
{
if (mask % 2 == 1) n++;
mask /= 2;
}
int[] countArray = header.countArray = new int[n];
for (int i = 0; i < n; i++)
countArray[i] = c.ReadInt32();
return header;
}
internal static NTHeader/*!*/ ReadNTHeader(MemoryCursor/*!*/ c)
{
NTHeader header = new NTHeader();
header.signature = c.ReadInt32();
header.machine = c.ReadUInt16();
header.numberOfSections = c.ReadUInt16();
header.timeDateStamp = c.ReadInt32();
header.pointerToSymbolTable = c.ReadInt32();
header.numberOfSymbols = c.ReadInt32();
header.sizeOfOptionalHeader = c.ReadUInt16();
header.characteristics = c.ReadUInt16();
header.magic = c.ReadUInt16();
header.majorLinkerVersion = c.ReadByte();
header.minorLinkerVersion = c.ReadByte();
header.sizeOfCode = c.ReadInt32();
header.sizeOfInitializedData = c.ReadInt32();
header.sizeOfUninitializedData = c.ReadInt32();
header.addressOfEntryPoint = c.ReadInt32();
header.baseOfCode = c.ReadInt32();
if (header.magic == 0x10B)
{
header.baseOfData = c.ReadInt32();
header.imageBase = c.ReadInt32();
}
else
{
header.baseOfData = 0;
header.imageBase = c.ReadInt64();
}
header.sectionAlignment = c.ReadInt32();
header.fileAlignment = c.ReadInt32();
header.majorOperatingSystemVersion = c.ReadUInt16();
header.minorOperatingSystemVersion = c.ReadUInt16();
header.majorImageVersion = c.ReadUInt16();
header.minorImageVersion = c.ReadUInt16();
header.majorSubsystemVersion = c.ReadUInt16();
header.minorSubsystemVersion = c.ReadUInt16();
header.win32VersionValue = c.ReadInt32();
header.sizeOfImage = c.ReadInt32();
header.sizeOfHeaders = c.ReadInt32();
header.checkSum = c.ReadInt32();
header.subsystem = c.ReadUInt16();
header.dllCharacteristics = c.ReadUInt16();
if (header.magic == 0x10B)
{
header.sizeOfStackReserve = c.ReadInt32();
header.sizeOfStackCommit = c.ReadInt32();
header.sizeOfHeapReserve = c.ReadInt32();
header.sizeOfHeapCommit = c.ReadInt32();
}
else
{
header.sizeOfStackReserve = c.ReadInt64();
header.sizeOfStackCommit = c.ReadInt64();
header.sizeOfHeapReserve = c.ReadInt64();
header.sizeOfHeapCommit = c.ReadInt64();
}
header.loaderFlags = c.ReadInt32();
header.numberOfDataDirectories = c.ReadInt32();
// Verify that the header signature and magic number are valid
if (header.signature != 0x00004550 /* "PE\0\0" */)
throw new InvalidMetadataException(ExceptionStrings.BadCOFFHeaderSignature);
if (header.magic != 0x010B && header.magic != 0x020B)
throw new InvalidMetadataException(ExceptionStrings.BadPEHeaderMagicNumber);
//Read the data directories
header.exportTable = ReadDirectoryEntry(c);
header.importTable = ReadDirectoryEntry(c);
header.resourceTable = ReadDirectoryEntry(c);
header.exceptionTable = ReadDirectoryEntry(c);
header.certificateTable = ReadDirectoryEntry(c);
header.baseRelocationTable = ReadDirectoryEntry(c);
header.debugTable = ReadDirectoryEntry(c);
header.copyrightTable = ReadDirectoryEntry(c);
header.globalPointerTable = ReadDirectoryEntry(c);
header.threadLocalStorageTable = ReadDirectoryEntry(c);
header.loadConfigTable = ReadDirectoryEntry(c);
header.boundImportTable = ReadDirectoryEntry(c);
header.importAddressTable = ReadDirectoryEntry(c);
header.delayImportTable = ReadDirectoryEntry(c);
header.cliHeaderTable = ReadDirectoryEntry(c);
header.reserved = ReadDirectoryEntry(c);
return header;
}
private static MetadataHeader/*!*/ ReadMetadataHeader(MemoryCursor/*!*/ c)
{
MetadataHeader header = new MetadataHeader();
header.signature = c.ReadInt32();
if (header.signature != 0x424a5342)
throw new InvalidMetadataException(ExceptionStrings.BadMetadataHeaderSignature);
header.majorVersion = c.ReadUInt16();
header.minorVersion = c.ReadUInt16();
header.reserved = c.ReadInt32();
int len = c.ReadInt32();
header.versionString = c.ReadASCII(len);
while (len++ % 4 != 0) c.ReadByte();
header.flags = c.ReadUInt16();
int n = c.ReadUInt16();
StreamHeader[] streamHeaders = header.streamHeaders = new StreamHeader[n];
for (int i = 0; i < n; i++)
streamHeaders[i] = ReadStreamHeader(c);
return header;
}
private FunctionPointer/*!*/ ParseFunctionPointer(MemoryCursor/*!*/ sigReader)
{
CallingConventionFlags convention = (CallingConventionFlags)sigReader.ReadByte();
int n = sigReader.ReadCompressedInt();
TypeNode returnType = this.ParseTypeSignature(sigReader);
if(returnType == null)
returnType = CoreSystemTypes.Object;
TypeNodeList parameterTypes = new TypeNodeList();
int m = n;
for(int i = 0; i < n; i++)
{
TypeNode t = this.ParseTypeSignature(sigReader);
if (t == null)
m = i--;
else
parameterTypes.Add(t);
}
FunctionPointer fp = FunctionPointer.For(parameterTypes, returnType);
fp.CallingConvention = convention;
fp.VarArgStart = m;
return fp;
}
private object GetCustomAttributeLiteralValue(MemoryCursor/*!*/ sigReader, ref TypeNode/*!*/ type)
{
if (type == null) return sigReader.ReadInt32();
switch (type.typeCode)
{
case ElementType.Boolean: return sigReader.ReadBoolean();
case ElementType.Char: return sigReader.ReadChar();
case ElementType.Double: return sigReader.ReadDouble();
case ElementType.Single: return sigReader.ReadSingle();
case ElementType.Int16: return sigReader.ReadInt16();
case ElementType.Int32: return sigReader.ReadInt32();
case ElementType.Int64: return sigReader.ReadInt64();
case ElementType.Int8: return sigReader.ReadSByte();
case ElementType.UInt16: return sigReader.ReadUInt16();
case ElementType.UInt32: return sigReader.ReadUInt32();
case ElementType.UInt64: return sigReader.ReadUInt64();
case ElementType.UInt8: return sigReader.ReadByte();
case ElementType.String: return ReadSerString(sigReader);
case ElementType.ValueType:
EnumNode etype = GetCustomAttributeEnumNode(ref type);
return this.GetCustomAttributeLiteralValue(sigReader, etype.UnderlyingType);
case ElementType.Class: return this.GetTypeFromSerializedName(ReadSerString(sigReader));
case ElementType.SzArray:
int numElems = sigReader.ReadInt32();
TypeNode elemType = ((ArrayType)type).ElementType;
return this.GetCustomAttributeLiteralArray(sigReader, numElems, elemType);
case ElementType.Object:
{
type = this.ParseTypeSignature(sigReader);
return this.GetCustomAttributeLiteralValue(sigReader, ref type);
}
}
throw new InvalidMetadataException(ExceptionStrings.UnexpectedTypeInCustomAttribute);
}
private void GetCustomAttributeNamedArguments(ExpressionList/*!*/ arguments, ushort numNamed, MemoryCursor/*!*/ sigReader)
{
for (int j = 0; j < numNamed; j++)
{
int nameTag = sigReader.ReadByte();
bool mustBox = sigReader.Byte(0) == (byte)ElementType.BoxedEnum;
TypeNode/*!*/ vType = this.ParseTypeSignature(sigReader);
Identifier id = sigReader.ReadIdentifierFromSerString();
object val = this.GetCustomAttributeLiteralValue(sigReader, ref vType);
Literal lit = val as Literal;
if (lit == null) lit = new Literal(val, vType);
NamedArgument narg = new NamedArgument(id, lit);
narg.Type = vType;
narg.IsCustomAttributeProperty = nameTag == 0x54;
narg.ValueIsBoxed = mustBox;
arguments.Add(narg);
}
}
