internal CoffHeader(ref PEBinaryReader reader)
{
Machine = (Machine)reader.ReadUInt16();
NumberOfSections = reader.ReadInt16();
TimeDateStamp = reader.ReadInt32();
PointerToSymbolTable = reader.ReadInt32();
NumberOfSymbols = reader.ReadInt32();
SizeOfOptionalHeader = reader.ReadInt16();
Characteristics = (Characteristics)reader.ReadUInt16();
}
internal CorHeader(ref PEBinaryReader reader)
{
// byte count
reader.ReadInt32();
MajorRuntimeVersion = reader.ReadUInt16();
MinorRuntimeVersion = reader.ReadUInt16();
MetadataDirectory = new DirectoryEntry(ref reader);
Flags = (CorFlags)reader.ReadUInt32();
EntryPointTokenOrRelativeVirtualAddress = reader.ReadInt32();
ResourcesDirectory = new DirectoryEntry(ref reader);
StrongNameSignatureDirectory = new DirectoryEntry(ref reader);
CodeManagerTableDirectory = new DirectoryEntry(ref reader);
VtableFixupsDirectory = new DirectoryEntry(ref reader);
ExportAddressTableJumpsDirectory = new DirectoryEntry(ref reader);
ManagedNativeHeaderDirectory = new DirectoryEntry(ref reader);
}
internal DirectoryEntry(ref PEBinaryReader reader)
{
RelativeVirtualAddress = reader.ReadInt32();
Size = reader.ReadInt32();
}
private void SkipDosHeader(ref PEBinaryReader reader, out bool isCOFFOnly)
{
// Look for DOS Signature "MZ"
ushort dosSig = reader.ReadUInt16();
if (dosSig != PEFileConstants.DosSignature)
{
// If image doesn't start with DOS signature, let's assume it is a
// COFF (Common Object File Format), aka .OBJ file.
// See CLiteWeightStgdbRW::FindObjMetaData in ndp\clr\src\MD\enc\peparse.cpp
if (dosSig != 0 || reader.ReadUInt16() != 0xffff)
{
isCOFFOnly = true;
reader.Seek(0);
}
else
{
// Might need to handle other formats. Anonymous or LTCG objects, for example.
throw new BadImageFormatException(SR.UnknownFileFormat);
}
}
else
{
isCOFFOnly = false;
}
if (!isCOFFOnly)
{
// Skip the DOS Header
reader.Seek(PEFileConstants.PESignatureOffsetLocation);
int ntHeaderOffset = reader.ReadInt32();
reader.Seek(ntHeaderOffset);
// Look for PESignature "PE\0\0"
uint ntSignature = reader.ReadUInt32();
if (ntSignature != PEFileConstants.PESignature)
{
throw new BadImageFormatException(SR.InvalidPESignature);
}
}
}
internal SectionHeader(ref PEBinaryReader reader)
{
name = reader.ReadUTF8(PEFileConstants.SizeofSectionName);
virtualSize = reader.ReadInt32();
virtualAddress = reader.ReadInt32();
sizeOfRawData = reader.ReadInt32();
pointerToRawData = reader.ReadInt32();
pointerToRelocations = reader.ReadInt32();
pointerToLineNumbers = reader.ReadInt32();
numberOfRelocations = reader.ReadUInt16();
numberOfLineNumbers = reader.ReadUInt16();
sectionCharacteristics = (SectionCharacteristics)reader.ReadUInt32();
}
internal PEHeader(ref PEBinaryReader reader)
{
PEMagic magic = (PEMagic)reader.ReadUInt16();
if (magic != PEMagic.PE32 && magic != PEMagic.PE32Plus)
{
throw new BadImageFormatException(SR.UnknownPEMagicValue);
}
Magic = magic;
MajorLinkerVersion = reader.ReadByte();
MinorLinkerVersion = reader.ReadByte();
SizeOfCode = reader.ReadInt32();
SizeOfInitializedData = reader.ReadInt32();
SizeOfUninitializedData = reader.ReadInt32();
AddressOfEntryPoint = reader.ReadInt32();
BaseOfCode = reader.ReadInt32();
if (magic == PEMagic.PE32Plus)
{
BaseOfData = 0; // not present
}
else
{
Debug.Assert(magic == PEMagic.PE32);
BaseOfData = reader.ReadInt32();
}
if (magic == PEMagic.PE32Plus)
{
ImageBase = reader.ReadUInt64();
}
else
{
ImageBase = reader.ReadUInt32();
}
// NT additional fields:
SectionAlignment = reader.ReadInt32();
FileAlignment = reader.ReadInt32();
MajorOperatingSystemVersion = reader.ReadUInt16();
MinorOperatingSystemVersion = reader.ReadUInt16();
MajorImageVersion = reader.ReadUInt16();
MinorImageVersion = reader.ReadUInt16();
MajorSubsystemVersion = reader.ReadUInt16();
MinorSubsystemVersion = reader.ReadUInt16();
// Win32VersionValue (reserved, should be 0)
reader.ReadUInt32();
SizeOfImage = reader.ReadInt32();
SizeOfHeaders = reader.ReadInt32();
CheckSum = reader.ReadUInt32();
Subsystem = (Subsystem)reader.ReadUInt16();
DllCharacteristics = (DllCharacteristics)reader.ReadUInt16();
if (magic == PEMagic.PE32Plus)
{
SizeOfStackReserve = reader.ReadUInt64();
SizeOfStackCommit = reader.ReadUInt64();
SizeOfHeapReserve = reader.ReadUInt64();
SizeOfHeapCommit = reader.ReadUInt64();
}
else
{
SizeOfStackReserve = reader.ReadUInt32();
SizeOfStackCommit = reader.ReadUInt32();
SizeOfHeapReserve = reader.ReadUInt32();
SizeOfHeapCommit = reader.ReadUInt32();
}
// loader flags
reader.ReadUInt32();
NumberOfRvaAndSizes = reader.ReadInt32();
// directory entries:
ExportTableDirectory = new DirectoryEntry(ref reader);
ImportTableDirectory = new DirectoryEntry(ref reader);
ResourceTableDirectory = new DirectoryEntry(ref reader);
ExceptionTableDirectory = new DirectoryEntry(ref reader);
CertificateTableDirectory = new DirectoryEntry(ref reader);
BaseRelocationTableDirectory = new DirectoryEntry(ref reader);
DebugTableDirectory = new DirectoryEntry(ref reader);
CopyrightTableDirectory = new DirectoryEntry(ref reader);
GlobalPointerTableDirectory = new DirectoryEntry(ref reader);
ThreadLocalStorageTableDirectory = new DirectoryEntry(ref reader);
LoadConfigTableDirectory = new DirectoryEntry(ref reader);
BoundImportTableDirectory = new DirectoryEntry(ref reader);
ImportAddressTableDirectory = new DirectoryEntry(ref reader);
DelayImportTableDirectory = new DirectoryEntry(ref reader);
CorHeaderTableDirectory = new DirectoryEntry(ref reader);
// ReservedDirectory (should be 0, 0)
new DirectoryEntry(ref reader);
}
internal DirectoryEntry(ref PEBinaryReader reader)
{
RelativeVirtualAddress = reader.ReadInt32();
Size = reader.ReadInt32();
}
internal PEHeader(ref PEBinaryReader reader)
{
PEMagic magic = (PEMagic)reader.ReadUInt16();
if (magic != PEMagic.PE32 && magic != PEMagic.PE32Plus)
{
throw new BadImageFormatException(MetadataResources.UnknownPEMagicValue);
}
Magic = magic;
MajorLinkerVersion = reader.ReadByte();
MinorLinkerVersion = reader.ReadByte();
SizeOfCode = reader.ReadInt32();
SizeOfInitializedData = reader.ReadInt32();
SizeOfUninitializedData = reader.ReadInt32();
AddressOfEntryPoint = reader.ReadInt32();
BaseOfCode = reader.ReadInt32();
if (magic == PEMagic.PE32Plus)
{
BaseOfData = 0; // not present
}
else
{
Debug.Assert(magic == PEMagic.PE32);
BaseOfData = reader.ReadInt32();
}
if (magic == PEMagic.PE32Plus)
{
ImageBase = reader.ReadUInt64();
}
else
{
ImageBase = reader.ReadUInt32();
}
// NT additional fields:
SectionAlignment = reader.ReadInt32();
FileAlignment = reader.ReadInt32();
MajorOperatingSystemVersion = reader.ReadUInt16();
MinorOperatingSystemVersion = reader.ReadUInt16();
MajorImageVersion = reader.ReadUInt16();
MinorImageVersion = reader.ReadUInt16();
MajorSubsystemVersion = reader.ReadUInt16();
MinorSubsystemVersion = reader.ReadUInt16();
// Win32VersionValue (reserved, should be 0)
reader.ReadUInt32();
SizeOfImage = reader.ReadInt32();
SizeOfHeaders = reader.ReadInt32();
CheckSum = reader.ReadUInt32();
Subsystem = (Subsystem)reader.ReadUInt16();
DllCharacteristics = (DllCharacteristics)reader.ReadUInt16();
if (magic == PEMagic.PE32Plus)
{
SizeOfStackReserve = reader.ReadUInt64();
SizeOfStackCommit = reader.ReadUInt64();
SizeOfHeapReserve = reader.ReadUInt64();
SizeOfHeapCommit = reader.ReadUInt64();
}
else
{
SizeOfStackReserve = reader.ReadUInt32();
SizeOfStackCommit = reader.ReadUInt32();
SizeOfHeapReserve = reader.ReadUInt32();
SizeOfHeapCommit = reader.ReadUInt32();
}
// loader flags
reader.ReadUInt32();
NumberOfRvaAndSizes = reader.ReadInt32();
// directory entries:
ExportTableDirectory = new DirectoryEntry(ref reader);
ImportTableDirectory = new DirectoryEntry(ref reader);
ResourceTableDirectory = new DirectoryEntry(ref reader);
ExceptionTableDirectory = new DirectoryEntry(ref reader);
CertificateTableDirectory = new DirectoryEntry(ref reader);
BaseRelocationTableDirectory = new DirectoryEntry(ref reader);
DebugTableDirectory = new DirectoryEntry(ref reader);
CopyrightTableDirectory = new DirectoryEntry(ref reader);
GlobalPointerTableDirectory = new DirectoryEntry(ref reader);
ThreadLocalStorageTableDirectory = new DirectoryEntry(ref reader);
LoadConfigTableDirectory = new DirectoryEntry(ref reader);
BoundImportTableDirectory = new DirectoryEntry(ref reader);
ImportAddressTableDirectory = new DirectoryEntry(ref reader);
DelayImportTableDirectory = new DirectoryEntry(ref reader);
CorHeaderTableDirectory = new DirectoryEntry(ref reader);
// ReservedDirectory (should be 0, 0)
new DirectoryEntry(ref reader);
}