protected override void WriteHeaders(FinalProgram<byte> final)
{
Writer.Write(DosHeader);
WritePeHeader(final);
WriteOptionalHeader(final);
foreach (var section in final.Sections)
WriteSectionHeader(section);
}
private void WritePeHeader(FinalProgram<byte> final)
{
Writer.Write(0x00004550); //PE\0\0
switch (Settings.ISA)
{
case ISA.x86:
if(!Settings.Is64Bit)
Writer.Write((ushort)0x14c);
else
Writer.Write((ushort)0x8664);
break;
case ISA.ARM7:
Writer.Write((ushort)0x1c4);
break;
}
Writer.Write((ushort)final.Sections.Count);
Writer.Write((uint)DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1)).TotalSeconds);
Writer.Write(0);
Writer.Write(0);
Writer.Write((ushort)0xF0);
Writer.Write((ushort)(CoffCharacteristics.Executable | CoffCharacteristics.LargeAddress));
}
private void WriteOptionalHeader(FinalProgram<byte> final)
{
if (Settings.Is64Bit)
Writer.Write((ushort)0x20b);
else
Writer.Write((ushort)0x10b);
// linker version
Writer.Write((byte)14);
Writer.Write((byte)0);
// size of code (uint32)
Writer.Write(SumSection(final.Sections, ESectionFlags.Code));
// size of init (uint32)
Writer.Write(SumSection(final.Sections, ESectionFlags.InitializedData));
// size of uninit (uint32)
Writer.Write(SumSection(final.Sections, ~ESectionFlags.InitializedData));
// relative entry point (uint32)
Writer.Write((uint)final.Sections[0].VirtualAddress);
// relative base of code (uint32)
Writer.Write((uint)final.Sections[0].VirtualAddress);
// image base (arch)
if (Settings.Is64Bit)
Writer.Write(final.VirtualBaseAddress);
else
Writer.Write((uint)final.VirtualBaseAddress);
// section alignment (uint32) virtual chunk size
Writer.Write((uint)final.VirtualAlignment);
// file alignment (uint32) physical chunk size
Writer.Write((uint)final.PhysicalAlignment);
// os version (uint32) major / minor
Writer.Write(0x00000006);
// image version (uint32) major / minor
Writer.Write(0x00000000);
// subsystem (uint32) major / minor
Writer.Write(0x00000006);
// win32 version (uint32)
Writer.Write(0);
// size of image (uint32) ?
Writer.Write(SumSection(final.Sections, ESectionFlags.Read, true) + (uint)final.VirtualAlignment);
// size of headers (uint32)
Writer.Write((uint)final.PhysicalBaseAddress);
// checksum (uint32) 0?
Writer.Write(0);
// subsystem (short) 3 for console
Writer.Write((ushort)3);
// flags (short)
Writer.Write((ushort)0x8160);
// stack reserve (arch) ?
ArchWrite(0x100000);
// stack commit (arch) ?
ArchWrite(0x1000);
// heap reserve (arch) ?
ArchWrite(0x100000);
// heap commit (arch) ?
ArchWrite(0x1000);
// loader flags (uint32) 0
Writer.Write(0);
// number of dirs (uint32)
Writer.Write(0x10);
// n dirs? uint32 rva and uint32 size
// Export Directory
Writer.Write(new byte[8]);
// Import Descriptor Directory
Writer.Write((uint)final.ImportDescriptorTableAddress);
Writer.Write((uint)final.ImportDescriptorTableSize);
// Resource Directory
/*Writer.Write((uint)final.ResourcesAddress);
Writer.Write((uint)final.ResourcesSize);*/
Writer.Write(new byte[8]);
// Exception Directory
Writer.Write(new byte[8]);
// Certificates directory
Writer.Write(new byte[8]);
// Base relocation
Writer.Write(new byte[8]);
// Debug
Writer.Write(new byte[8]);
// Architecture
Writer.Write(new byte[8]);
// Global Pointer
Writer.Write(new byte[8]);
// Thread Local Storage
Writer.Write(new byte[8]);
// Load Configuration
Writer.Write(new byte[8]);
// Bound Import
Writer.Write(new byte[8]);
// Import Address
Writer.Write((uint)final.ImportAddressTableAddress);
Writer.Write((uint)final.ImportAddressTableSize);
// Delay Import
Writer.Write(new byte[8]);
// COM descriptor
Writer.Write(new byte[8]);
// Reserved
Writer.Write(new byte[8]);
}
