public override Dictionary <int, ElfSymbol> LoadSymbolsSection(ElfSection symSection)
{
//Debug.Print("Symbols");
var stringtableSection = symSection.LinkedSection;
var rdr = CreateReader(symSection.FileOffset);
var symbols = new Dictionary <int, ElfSymbol>();
for (ulong i = 0; i < symSection.Size / symSection.EntrySize; ++i)
{
var sym = Elf64_Sym.Load(rdr);
//Debug.Print(" {0,3} {1,-25} {2,-12} {3,6} {4,-15} {5:X8} {6,9}",
// i,
// RemoveGlibcSuffix(ReadAsciiString(stringtableSection.FileOffset + sym.st_name)),
// (ElfSymbolType)(sym.st_info & 0xF),
// sym.st_shndx,
// GetSectionName(sym.st_shndx),
// sym.st_value,
// sym.st_size);
symbols.Add(
(int)i,
new ElfSymbol
{
Name = RemoveModuleSuffix(ReadAsciiString(stringtableSection.FileOffset + sym.st_name)),
Type = (ElfSymbolType)(sym.st_info & 0xF),
SectionIndex = sym.st_shndx,
Value = sym.st_value,
Size = sym.st_size,
});
}
return(symbols);
}
public static Elf64_Sym Load(ImageReader rdr)
{
var sym = new Elf64_Sym();
sym.st_name = rdr.ReadUInt32();
sym.st_info = rdr.ReadByte();
sym.st_other = rdr.ReadByte();
sym.st_shndx = rdr.ReadUInt16();
sym.st_value = rdr.ReadUInt64();
sym.st_size = rdr.ReadUInt64();
return sym;
}
public static Elf64_Sym Load(ImageReader rdr)
{
var sym = new Elf64_Sym();
sym.st_name = rdr.ReadUInt32();
sym.st_info = rdr.ReadByte();
sym.st_other = rdr.ReadByte();
sym.st_shndx = rdr.ReadUInt16();
sym.st_value = rdr.ReadUInt64();
sym.st_size = rdr.ReadUInt64();
return(sym);
}
public override ElfSymbol LoadSymbol(ulong offsetSymtab, ulong symbolIndex, ulong entrySize, ulong offsetStringTable)
{
var rdr = CreateReader(offsetSymtab + entrySize * symbolIndex);
var sym = Elf64_Sym.Load(rdr);
return(new ElfSymbol
{
Name = RemoveModuleSuffix(ReadAsciiString(offsetStringTable + sym.st_name)),
Type = (ElfSymbolType)(sym.st_info & 0xF),
Bind = sym.st_info >> 4,
SectionIndex = sym.st_shndx,
Value = sym.st_value,
Size = sym.st_size,
});
}
public override ElfSymbol?LoadSymbol(ulong offsetSymtab, ulong symbolIndex, ulong entrySize, ulong offsetStringTable)
{
var rdr = CreateReader(offsetSymtab + entrySize * symbolIndex);
if (!Elf64_Sym.TryLoad(rdr, out var sym))
{
return(null);
}
var name = RemoveModuleSuffix(ReadAsciiString(offsetStringTable + sym.st_name));
return(new ElfSymbol(name)
{
Type = (ElfSymbolType)(sym.st_info & 0xF),
Bind = (ElfSymbolBinding)(sym.st_info >> 4),
SectionIndex = sym.st_shndx,
Value = sym.st_value,
Size = sym.st_size,
});
}
public static bool TryLoad(EndianImageReader rdr, out Elf64_Sym sym)
{
sym = new Elf64_Sym();
if (
rdr.TryReadUInt32(out sym.st_name) &&
rdr.TryReadByte(out sym.st_info) &&
rdr.TryReadByte(out sym.st_other) &&
rdr.TryReadUInt16(out sym.st_shndx) &&
rdr.TryReadUInt64(out sym.st_value) &&
rdr.TryReadUInt64(out sym.st_size))
{
return(true);
}
else
{
sym = null !;
return(false);
}
}
public override Dictionary <int, ElfSymbol> LoadSymbolsSection(ElfSection symSection)
{
ElfImageLoader.trace.Inform("== Symbols from {0} ==", symSection.Name);
var symbols = new Dictionary <int, ElfSymbol>();
var stringtableSection = symSection.LinkedSection !;
var rdr = CreateReader(symSection.FileOffset);
for (ulong i = 0; i < symSection.Size / symSection.EntrySize; ++i)
{
if (!Elf64_Sym.TryLoad(rdr, out var sym))
{
ElfImageLoader.trace.Warn("Unable to load symbol entry {0} from {1}", i, symSection.Name);
continue;
}
var name = RemoveModuleSuffix(ReadAsciiString(stringtableSection.FileOffset + sym.st_name));
ElfImageLoader.trace.Verbose(" {0,3} {1,-25} {2,-12} {3,6} {4} {5,-15} {6:X16} {7,9}",
i,
string.IsNullOrWhiteSpace(name) ? "<empty>" : name,
(ElfSymbolType)(sym.st_info & 0xF),
sym.st_shndx,
GetBindingName((ElfSymbolBinding)(sym.st_info >> 4)),
GetSectionName(sym.st_shndx),
sym.st_value,
sym.st_size);
var esym = new ElfSymbol(name)
{
Type = (ElfSymbolType)(sym.st_info & 0xF),
Bind = (ElfSymbolBinding)(sym.st_info >> 4),
SectionIndex = sym.st_shndx,
Value = sym.st_value,
Size = sym.st_size,
};
symbols.Add((int)i, esym);
}
return(symbols);
}
