public void Read(ParsedDocument doc, ElfSectionHeader section, byte[] data)
{
var header = doc.document.header;
symbols.Clear();
using (var ms = new System.IO.MemoryStream(data))
{
int sylsize = header.Head_Is64Bit ? 24 : 16;
for (var i = 0; i < data.Length; i += sylsize)
{
Symbol symbol = new Symbol();
if (header.Head_Is64Bit)//64位和32位格式，顺序不太一样
{
symbol.st_name = ms.ReadUInt32(header);
symbol.st_info = ms.ReadByte1();
symbol.st_other = ms.ReadByte1();
symbol.st_shndx = ms.ReadUInt16(header);
symbol.st_value = ms.ReadUIntPtr(header);
symbol.st_size = ms.ReadUIntPtr(header);
}
else
{
symbol.st_name = ms.ReadUInt32(header);
symbol.st_value = ms.ReadUIntPtr(header);
symbol.st_size = ms.ReadUIntPtr(header);
symbol.st_info = ms.ReadByte1();
symbol.st_other = ms.ReadByte1();
symbol.st_shndx = ms.ReadUInt16(header);
}
if (doc.Parsed_StringTables.ContainsKey((int)section.Link))
{
var stable = doc.Parsed_StringTables[(int)section.Link];
stable.TryGetValue((int)symbol.st_name, out symbol.Name);
}
symbol.SymbolBinding = (SymbolBinding)(symbol.st_info >> 4);
symbol.SymbolType = (SymbolType)(symbol.st_info & 0x0F);
if (Enum.IsDefined(typeof(SpecialSectionIndex), symbol.st_shndx))
{
symbol.SpecialSectionIndex = (SpecialSectionIndex)symbol.st_shndx;
}
else
{
symbol.SpecialSectionIndex = null;
}
symbols.Add(symbol);
}
}
}