private void LoadSymbolsFromDynamicSegment(ElfSegment dynSeg, ElfDynamicEntry symtab, ElfDynamicEntry syment, ulong offStrtab, ulong offSymtab)
{
// Sadly, the ELF format has no way to locate the end of the symbols in a DT_DYNAMIC segment.
// We guess instead...
var addrEnd = Loader.GuessAreaEnd(symtab.UValue, dynSeg);
if (addrEnd != 0)
{
// We have found some symbols to ensure.
ElfImageLoader.trace.Verbose("== Symbols in the DT_DYNAMIC segment");
int i = 0;
for (ulong uSymAddr = symtab.UValue; uSymAddr < addrEnd; uSymAddr += syment.UValue)
{
var elfSym = Loader.EnsureSymbol(offSymtab, i, syment.UValue, offStrtab);
++i;
ElfImageLoader.trace.Verbose(" {0:X8} {1}", elfSym.Value, elfSym.Name);
var imgSym = Loader.CreateImageSymbol(elfSym, true);
if (imgSym == null || imgSym.Address.ToLinear() == 0)
{
continue;
}
imageSymbols[imgSym.Address] = imgSym;
}
}
}
protected override void DumpDynamicSegment(ElfSegment dynSeg)
{
var renderer = new DynamicSectionRenderer64(Loader, null, ElfMachine.EM_NONE);
var sw = new StringWriter();
renderer.Render(dynSeg.p_offset, new TextFormatter(sw));
Debug.WriteLine(sw.ToString());
}
private void WriteProgramHeader64(ElfWriter writer, ref ElfSegment segment)
{
var hdr = new ElfNative.Elf64_Phdr();
writer.Encode(out hdr.p_type, segment.Type.Value);
writer.Encode(out hdr.p_offset, segment.Offset);
writer.Encode(out hdr.p_vaddr, segment.VirtualAddress);
writer.Encode(out hdr.p_paddr, segment.PhysicalAddress);
writer.Encode(out hdr.p_filesz, segment.Size);
writer.Encode(out hdr.p_memsz, segment.SizeInMemory);
writer.Encode(out hdr.p_flags, segment.Flags.Value);
writer.Encode(out hdr.p_align, segment.Alignment);
writer.Write(hdr);
}
protected abstract void DumpDynamicSegment(ElfSegment dynSeg);
protected override void DumpDynamicSegment(ElfSegment dynSeg)
{
throw new NotImplementedException();
}
