internal void WriteTo(Stream stream, LinkerSection section)
{
foreach (var symbol in Symbols)
{
if (symbol.IsReplaced)
{
continue;
}
if (symbol.SectionKind != section.SectionKind)
{
continue;
}
if (!symbol.IsResolved)
{
continue;
}
stream.Seek(section.FileOffset + symbol.SectionOffset, SeekOrigin.Begin);
if (symbol.IsDataAvailable)
{
symbol.Stream.Position = 0;
symbol.Stream.WriteTo(stream);
}
}
stream.WriteZeroBytes((int)(section.FileOffset + section.AlignedSize - stream.Position));
}
private void ResolveSectionLayout(LinkerSection section, uint fileOffset, ulong virtualAddress)
{
section.VirtualAddress = virtualAddress;
section.FileOffset = fileOffset;
section.Size = 0;
foreach (var symbol in Symbols)
{
if (symbol.IsReplaced)
{
continue;
}
if (symbol.SectionKind != section.SectionKind)
{
continue;
}
if (symbol.IsResolved)
{
continue;
}
//if (symbol.IsExternalSymbol)
// continue;
symbol.SectionOffset = section.Size;
symbol.VirtualAddress = section.VirtualAddress + section.Size;
section.Size += symbol.Size;
}
section.Size = Alignment.AlignUp(section.Size, SectionAlignment);
section.IsResolved = true;
}
public BaseLinker(ulong baseAddress, Endianness endianness, MachineType machineType, bool emitSymbols, LinkerFormatType linkerFormatType)
{
LinkerSections = new LinkerSection[4];
BaseAddress = baseAddress;
Endianness = endianness;
MachineType = machineType;
EmitSymbols = emitSymbols;
LinkerFormatType = linkerFormatType;
elfLinker = new ElfLinker(this, LinkerFormatType);
BaseFileOffset = elfLinker.BaseFileOffset;
SectionAlignment = elfLinker.SectionAlignment;
AddSection(new LinkerSection(SectionKind.Text, SectionAlignment));
AddSection(new LinkerSection(SectionKind.Data, SectionAlignment));
AddSection(new LinkerSection(SectionKind.ROData, SectionAlignment));
AddSection(new LinkerSection(SectionKind.BSS, SectionAlignment));
}
private void AddSection(LinkerSection linkerSection)
{
Sections[(int)linkerSection.SectionKind] = linkerSection;
}
private void AddSection(LinkerSection section)
{
LinkerSections[(int)section.SectionKind] = section;
}