public static void DumpDWARF(ELF elf)
{
Console.WriteLine("DWARF v1 dump ---------------\n");
Console.WriteLine(".debug File Offset: 0x" + elf.debug_offset.ToString("x"));
Console.WriteLine(".debug Size: 0x" + elf.debug_size.ToString("x"));
MemoryStream elf_data = new MemoryStream(elf.elf);
elf_data.Seek(elf.debug_offset, SeekOrigin.Begin);
while (elf_data.Position < elf.debug_offset + elf.debug_size)
{
long cur_pos = elf_data.Position;
uint size = ELF.ReadUInt32(elf_data, elf.GetEndian());
if (size >= 8)
{
ushort tag = ELF.ReadUInt16(elf_data, elf.GetEndian());
Console.WriteLine("\n" + (cur_pos - elf.debug_offset).ToString("x") + ": <" + size + "> " + Enum.GetName(typeof(Tag), tag));
while (elf_data.Position < cur_pos + size)
{
string text = "";
if (GetAT(elf, elf_data, out text) == 1)
{
break;
}
Console.WriteLine(text);
}
}
else if (size > 4)
{
for (int i = 4; i < size; i++)
{
elf_data.ReadByte();
}
}
else
{
Console.WriteLine((cur_pos - elf.debug_offset).ToString("x") + ": <" + size + ">");
}
}
}
static void Main(string[] args)
{
Console.WriteLine("DWARFone --- by LuigiBlood");
if (args.Length == 0)
{
Console.WriteLine("Usage: dwarfone <elf file>");
}
else
{
ELF elf = new ELF(args[0]);
if (elf.GetError() != 0)
{
Console.WriteLine("Error Code: " + elf.GetError());
}
else
{
Console.WriteLine("ELF file successfully loaded");
}
DWARF.DumpDWARF(elf);
}
}
public static int GetAT(ELF elf, MemoryStream elf_data, out string text)
{
ushort at = ELF.ReadUInt16(elf_data, elf.GetEndian());
ulong value = 0;
string str = "";
text = str;
if (at == 0)
{
elf_data.Seek(-2, SeekOrigin.Current);
return(1);
}
switch (at & 0xF)
{
case (int)Form.FORM_ADDR:
case (int)Form.FORM_REF:
case (int)Form.FORM_DATA4:
value = ELF.ReadUInt32(elf_data, elf.GetEndian());
break;
case (int)Form.FORM_DATA2:
value = ELF.ReadUInt16(elf_data, elf.GetEndian());
break;
case (int)Form.FORM_DATA8:
value = ELF.ReadUInt64(elf_data, elf.GetEndian());
break;
case (int)Form.FORM_STRING:
str = ELF.ReadString(elf_data);
break;
case (int)Form.FORM_BLOCK2:
value = ELF.ReadUInt16(elf_data, elf.GetEndian());
break;
case (int)Form.FORM_BLOCK4:
value = ELF.ReadUInt32(elf_data, elf.GetEndian());
break;
}
switch (at & 0xF)
{
case (int)Form.FORM_ADDR:
case (int)Form.FORM_REF:
case (int)Form.FORM_DATA4:
case (int)Form.FORM_DATA2:
case (int)Form.FORM_DATA8:
switch (at & 0xFFF0)
{
case (int)At.AT_language:
text = (" " + Enum.GetName(typeof(At), at & 0xFFF0) + "(" + Enum.GetName(typeof(Lang), value) + ")");
break;
case (int)At.AT_fund_type:
text = (" " + Enum.GetName(typeof(At), at & 0xFFF0) + "(" + Enum.GetName(typeof(Ft), value) + ")");
break;
default:
text = (" " + Enum.GetName(typeof(At), at & 0xFFF0) + "(0x" + value.ToString("x") + ")");
break;
}
break;
case (int)Form.FORM_STRING:
text = (" " + Enum.GetName(typeof(At), at & 0xFFF0) + "(\"" + str + "\")");
break;
case (int)Form.FORM_BLOCK2:
case (int)Form.FORM_BLOCK4:
switch (at & 0xFFF0)
{
case (int)At.AT_location:
string loc = "";
for (uint i = 0; i < value; i++)
{
int op = elf_data.ReadByte();
switch (op)
{
case (int)Op.OP_ADDR:
case (int)Op.OP_BASEREG:
case (int)Op.OP_CONST:
case (int)Op.OP_REG:
loc += Enum.GetName(typeof(Op), op) + "(0x" + ELF.ReadUInt32(elf_data, elf.GetEndian()).ToString("x") + ") ";
i += 4;
break;
case (int)Op.OP_ADD:
case (int)Op.OP_DEREF:
case (int)Op.OP_DEREF2:
case (int)Op.OP_hi_user:
case (int)Op.OP_lo_user:
loc += Enum.GetName(typeof(Op), op) + " ";
break;
}
}
text = (" " + Enum.GetName(typeof(At), at & 0xFFF0) + "(<" + value + ">" + loc + ")");
break;
case (int)At.AT_mod_fund_type:
string mod_f = "";
for (uint i = 0; i < (value - 2); i++)
{
mod_f += Enum.GetName(typeof(Mod), elf_data.ReadByte()) + " ";
}
mod_f += Enum.GetName(typeof(Ft), ELF.ReadUInt16(elf_data, elf.GetEndian()));
text = (" " + Enum.GetName(typeof(At), at & 0xFFF0) + "(<" + value + ">" + mod_f + ")");
break;
case (int)At.AT_mod_u_d_type:
string mod = "";
for (uint i = 0; i < (value - 4); i++)
{
mod += Enum.GetName(typeof(Mod), elf_data.ReadByte()) + " ";
}
mod += "0x" + ELF.ReadUInt32(elf_data, elf.GetEndian()).ToString("x");
text = (" " + Enum.GetName(typeof(At), at & 0xFFF0) + "(<" + value + ">" + mod + ")");
break;
case (int)At.AT_element_list:
string list = "";
long start_pos_list = elf_data.Position;
while (elf_data.Position < (start_pos_list + (long)value))
{
list += "(" + ELF.ReadUInt32(elf_data, elf.GetEndian()).ToString() + "=\"" + ELF.ReadString(elf_data) + "\")";
}
text = (" " + Enum.GetName(typeof(At), at & 0xFFF0) + "(<" + value + ">" + list + ")");
break;
case (int)At.AT_subscr_data:
long start_pos_sub = elf_data.Position;
string fmt_str = "";
while (elf_data.Position < (start_pos_sub + (long)value))
{
int fmt = elf_data.ReadByte();
string fmt_str_out = "";
switch (fmt)
{
case (int)Fmt.FMT_ET:
GetAT(elf, elf_data, out fmt_str_out);
fmt_str += "FMT_ET: " + fmt_str_out.Substring(8) + ", ";
break;
case (int)Fmt.FMT_FT_C_C:
ushort fmt_ft = ELF.ReadUInt16(elf_data, elf.GetEndian());
uint lo = ELF.ReadUInt32(elf_data, elf.GetEndian());
uint hi = ELF.ReadUInt32(elf_data, elf.GetEndian());
fmt_str += Enum.GetName(typeof(Ft), fmt_ft) + "[" + lo + ":" + hi + "], ";
break;
default:
elf_data.ReadByte();
break;
}
}
text = (" " + Enum.GetName(typeof(At), at & 0xFFF0) + "(<" + value + ">" + fmt_str.Substring(0, fmt_str.Length - 2) + ")");
break;
case (int)At.AT_discr_value:
case (int)At.AT_string_length:
case (int)At.AT_const_value:
case (int)At.AT_friends:
case (int)At.AT_return_addr:
default:
for (uint i = 0; i < value; i++)
{
elf_data.ReadByte();
}
text = (" " + Enum.GetName(typeof(At), at & 0xFFF0) + "(<" + value + "> TODO" + ")");
break;
}
break;
}
return(0);
}
