private static libtysila.tydb.Function GetFunction(ref string symbol_name, ulong pc, ref ulong offset)
{
if (Program.functions.ContainsKey(symbol_name) && (Program.functions[symbol_name].GetILOffsetFromCompiledOffset((int)offset) != -1))
{
return(Program.functions[symbol_name]);
}
if (Program.functions_from_text_offset.ContainsKey(pc))
{
return(Program.functions_from_text_offset[pc]);
}
Program.functions_from_text_offset.Add(pc, new libtysila.tydb.Function());
int idx = Program.functions_from_text_offset.IndexOfKey(pc);
Program.functions_from_text_offset.RemoveAt(idx);
if (idx == 0)
{
return(null);
}
libtysila.tydb.Function ret = Program.functions_from_text_offset.Values[idx - 1];
offset = offset - ret.TextOffset;
symbol_name = ret.MangledName;
return(ret);
}
internal static state get_state()
{
bool cont = true;
s = new state();
while (cont)
{
string msg = comm.gdb_read_message();
if (msg.StartsWith("T"))
{
interpret_t_message(msg, s);
cont = false;
}
else if (msg.StartsWith("S"))
{
interpret_s_message(msg, s);
cont = false;
}
else
{
System.Diagnostics.Debug.WriteLine("Invalid message: " + msg);
}
}
ulong?pc = get_register(s, Program.arch.PC_id);
if (pc.HasValue)
{
s.pc = pc.Value;
string symbol_name;
ulong offset;
symbol_name = mem.get_symbol(pc.Value, out offset);
s.offset = offset;
s.sym_name = symbol_name;
// provide a dissassembly
if (Program.arch.disasm != null)
{
s.disasm = Program.arch.disasm.GetNextLine(new RemoteByteProvider(pc.Value));
}
// get the source
libtysila.tydb.Function t_f = GetFunction(ref s.sym_name, pc.Value, ref s.offset);
if (t_f != null)
{
s.pefile = t_f.MetadataFileName;
int il_offset = t_f.GetILOffsetFromCompiledOffset((int)s.offset);
uint m_tok = t_f.MetadataToken;
s.ty_f = t_f;
s.il_offset = il_offset;
s.m_tok = m_tok;
if (Program.cci_int != null)
{
s.source = Program.cci_int.GetSourceLineFromToken(m_tok, (uint)il_offset);
}
}
}
return(s);
}
public static TyDbFile Read(Stream s)
{
TyDbFile ret = new TyDbFile();
reader_s = s;
uint magic = ReadUInt(s);
if (magic != 0x42445954)
{
throw new Exception("Invalid magic number");
}
uint version = ReadUInt(s);
if (version != 0x00000001)
{
throw new Exception("Invalid version");
}
int funcs_offset = ReadInt(s);
int lines_offset = ReadInt(s);
int varargs_offset = ReadInt(s);
reader_strings_offset = ReadInt(s);
int locs_offset = ReadInt(s);
int func_count = ReadInt(s);
ret.CompiledFileName = ReadString(s);
s.Seek((long)funcs_offset, SeekOrigin.Begin);
for (int i = 0; i < func_count; i++)
{
long f_offset = s.Position;
libtysila.tydb.Function f = new libtysila.tydb.Function();
f.MetadataFileName = ReadString(s);
f.MetadataToken = ReadUInt(s);
f.MangledName = ReadString(s);
f.TextOffset = ReadUInt(s);
int line_start = ReadInt(s);
int line_count = ReadInt(s);
int var_start = ReadInt(s);
int var_count = ReadInt(s);
int arg_start = ReadInt(s);
int arg_count = ReadInt(s);
for (int j = 0; j < line_count; j++)
{
s.Seek((long)(lines_offset + line_start + j * 8), SeekOrigin.Begin);
libtysila.tydb.Line l = new libtysila.tydb.Line();
l.ILOffset = ReadInt(s);
l.CompiledOffset = ReadInt(s);
f.Lines.Add(l);
if (!f.compiled_to_il.ContainsKey(l.CompiledOffset))
{
f.compiled_to_il[l.CompiledOffset] = l.ILOffset;
}
}
for (int j = 0; j < var_count; j++)
{
s.Seek((long)(varargs_offset + var_start + j * 8), SeekOrigin.Begin);
libtysila.tydb.VarArg v = new libtysila.tydb.VarArg();
v.Name = ReadString(s);
v.Location = ReadLocation(s, locs_offset, ReadInt(s));
f.Vars.Add(v);
}
for (int j = 0; j < arg_count; j++)
{
s.Seek((long)(varargs_offset + arg_start + j * 8), SeekOrigin.Begin);
libtysila.tydb.VarArg a = new libtysila.tydb.VarArg();
a.Name = ReadString(s);
a.Location = ReadLocation(s, locs_offset, ReadInt(s));
f.Args.Add(a);
}
ret.Functions.Add(f);
s.Seek(f_offset + 40, SeekOrigin.Begin);
}
return(ret);
}
