private static void main_loop()
{
Console.WriteLine("Synchronizing with target...");
comm.gdb_send_message("?");
await.state s = await.get_state();
Console.WriteLine(s.ToString());
bool cont = true;
string[] prev_cmd = null;
while (cont)
{
Console.Write("(tydb) ");
string orig_cmd_line = Console.ReadLine();
string[] cmd_line = orig_cmd_line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (cmd_line.Length == 0)
{
if (prev_cmd != null)
{
cmd_line = prev_cmd;
}
else
{
continue;
}
}
string cmd = cmd_line[0];
if ((cmd == "q") || (cmd == "quit") || (cmd == "exit"))
{
cont = false;
}
else if ((cmd == "c") || (cmd == "cont") || (cmd == "continue"))
{
comm.gdb_send_message("c");
s = await.get_state();
Console.WriteLine(s.ToString());
}
else if ((cmd == "si") || (cmd == "stepi"))
{
comm.gdb_send_message("s");
s = await.get_state();
Console.WriteLine(s.ToString());
}
else if ((cmd == "s") || (cmd == "step"))
{
do
{
comm.gdb_send_message("s");
s = await.get_state();
} while (s.source == null);
Console.WriteLine(s.ToString());
}
else if ((cmd == "r") || (cmd == "regs") || (cmd == "registers"))
{
regs.dump_regs();
}
else if ((cmd == "bp") || (cmd == "break") || (cmd == "breakpoint"))
{
string addr = cmd_line[1];
if (addr.StartsWith("0x"))
{
addr = addr.Substring(2);
}
ulong uaddr = ulong.Parse(addr, System.Globalization.NumberStyles.HexNumber);
comm.gdb_send_message("Z0," + uaddr.ToString("X16") + ",1");
if (comm.gdb_read_message() == "OK")
{
Console.WriteLine("Breakpoint set");
}
else
{
Console.WriteLine("Error setting breakpoint");
}
}
else if ((cmd == "x") || (cmd == "?"))
{
//ulong addr = ulong.Parse(cmd_line[1], System.Globalization.NumberStyles.HexNumber);
//obj obj = obj.get_obj(addr);
if (s.ty_f != null)
{
libtysila.tydb.VarArg va = s.ty_f.GetVarArg(cmd_line[1]);
if (va != null)
{
if (va.Location.Type == libtysila.tydb.Location.LocationType.Register)
{
cmd_line[1] = va.Location.RegisterName;
}
else if (va.Location.Type == libtysila.tydb.Location.LocationType.ContentsOfLocation)
{
if (va.Location.ContentsOf.Type == libtysila.tydb.Location.LocationType.Register)
{
ulong?val = await.get_register(s, Program.arch.get_reg(va.Location.ContentsOf.RegisterName).id);
if (val.HasValue)
{
ulong mem_loc = val.Value;
if (va.Location.Offset >= 0)
{
mem_loc += (ulong)va.Location.Offset;
}
else
{
mem_loc -= (ulong)(-va.Location.Offset);
}
cmd_line[1] = "*" + mem_loc.ToString("x" + (Program.arch.address_size * 2).ToString());
}
}
}
}
}
dbgarch.register r = arch.get_reg(cmd_line[1]);
if (r != null)
{
ulong?val = await.get_register(new await.state(), r.id);
Console.WriteLine(r.name + " = " + (val.HasValue ? val.Value.ToString("x" + (arch.data_size * 2).ToString()) : "unknown"));
}
else
{
obj obj = var.get_var(cmd_line[1]);
if (obj == null)
{
Console.WriteLine("Syntax Error");
}
else
{
Console.WriteLine(obj.addr.ToString("x" + (arch.address_size * 2).ToString()) + " = " + obj.ToString());
}
}
}
else if (cmd == "set")
{
if (orig_cmd_line == "set")
{
foreach (KeyValuePair <string, obj> kvp in var.vars)
{
Console.WriteLine(kvp.Key + " = " + kvp.Value.ToString());
}
continue;
}
int eq_pos = orig_cmd_line.IndexOf('=');
if (eq_pos == -1)
{
Console.WriteLine("Syntax Error");
continue;
}
string var_n = orig_cmd_line.Substring(4, eq_pos - 4).Trim();
string arg = orig_cmd_line.Substring(eq_pos + 1).Trim();
if (var_n.Contains(" ") || arg.Contains(" "))
{
Console.WriteLine("Syntax Error");
continue;
}
obj o = var.get_var(arg);
if (o == null)
{
Console.WriteLine("Syntax Error");
}
else
{
var.vars[var_n] = o;
}
}
else
{
Console.WriteLine("Unrecognized command: " + cmd);
prev_cmd = null;
continue;
}
prev_cmd = cmd_line;
}
}
internal static obj get_obj(ulong address)
{
bool is_obj = false;
ulong vtbl_address;
ulong ti_address = 0;
// try and get a vtable at the contents of this address
vtbl_address = mem.get_mem(address);
ulong offset;
string vtbl_name = mem.get_symbol(vtbl_address, out offset);
if (vtbl_name.EndsWith("TI"))
{
// try and get a typeinfo at the contents of the vtbl
ti_address = mem.get_mem(vtbl_address);
string ti_name = mem.get_symbol(ti_address, out offset);
if ((offset == 0) && (ti_name.EndsWith("TI")))
{
is_obj = true;
}
}
if (is_obj)
{
// if an object try and interpret its typeinfo
obj obj = new obj();
libtysila.Layout ti_l = Program.arch.ass.GetTysosTypeLayout();
libtysila.Layout fi_l = Program.arch.ass.GetTysosFieldLayout();
string full_name = get_type_fullname(ti_address);
string extends_name = get_type_fullname(mem.get_mem(ti_address + (ulong)ti_l.InstanceFieldOffsets["libsupcs.TysosType Extends"]));
if (((extends_name == "[mscorlib]System.ValueType") && (full_name != "[mscorlib]System.Enum")) ||
(extends_name == "[mscorlib]System.EnumType"))
{
obj.is_vt = true;
}
else
{
obj.is_vt = false;
}
obj.type = full_name;
obj.addr = address;
if (full_name == "[mscorlib]System.String")
{
obj.value = get_string(address);
}
else
{
obj.value = get_fields(ti_address, address);
/*ulong field_pointer = mem.get_mem(ti_address + (ulong)ti_l.InstanceFieldOffsets["IntPtr Fields"]);
*
* if (field_pointer != 0)
* {
* List<obj.field> fields = new List<field>();
*
* ulong cur_field = mem.get_mem(field_pointer);
*
* while (cur_field != 0)
* {
* string field_name = get_string(mem.get_mem(cur_field + (ulong)fi_l.InstanceFieldOffsets["String _Name"]));
* int flags = (int)mem.get_mem(cur_field + (ulong)fi_l.InstanceFieldOffsets["Int32 Flags"], 4);
* int f_offset = (int)mem.get_mem(cur_field + (ulong)fi_l.InstanceFieldOffsets["Int32 offset"], 4);
* string field_type = get_type_fullname(mem.get_mem(cur_field + (ulong)fi_l.InstanceFieldOffsets["tysos.TysosType _FieldType"]));
* ulong field_ti = mem.get_mem(cur_field + (ulong)fi_l.InstanceFieldOffsets["tysos.TysosType _FieldType"]);
*
* if ((flags & 0x10) == 0x0)
* {
* // is an instance field
* int len = get_data_length(field_type);
* ulong val = mem.get_mem(address + (ulong)f_offset, len);
* bool is_vt = false;
*
* string field_extends_name = get_type_fullname(mem.get_mem(field_ti + (ulong)ti_l.InstanceFieldOffsets["tysos.TysosType Extends"]));
* if (((field_extends_name == "[mscorlib]System.ValueType") && (field_type != "[mscorlib]System.Enum")) ||
* (field_extends_name == "[mscorlib]System.EnumType"))
* is_vt = true;
*
* fields.Add(new field { name = field_name, type = field_type, value = val, is_vt = is_vt, ti_addr = field_ti });
* }
*
* field_pointer += (ulong)Program.arch.address_size;
* cur_field = mem.get_mem(field_pointer);
* }
*
* obj.value = fields.ToArray();
* } */
}
return(obj);
}
else
{
// if not an object, then interpret it as an unsigned integer in the native
// byte length
ulong val = mem.get_mem(address, Program.arch.data_size);
obj obj = new obj();
obj.addr = address;
switch (Program.arch.data_size)
{
case 4:
obj.type = "[mscorlib]System.UInt32";
obj.value = (uint)val;
break;
case 8:
default:
obj.type = "[mscorlib]System.UInt64";
obj.value = (ulong)val;
break;
}
obj.is_vt = true;
return(obj);
}
}
internal static obj get_var(string name)
{
if (name.Contains("."))
{
// Composite value
string[] names = name.Split(new char[] { '.' }, StringSplitOptions.RemoveEmptyEntries);
obj o = get_var(names[0]);
if (o == null)
{
return(null);
}
for (int i = 1; i < names.Length; i++)
{
obj.field found = null;
if (o.value is obj.field[])
{
obj.field[] fs = o.value as obj.field[];
foreach (obj.field f in fs)
{
if (f.name == names[i])
{
found = f;
break;
}
}
}
if (found == null)
{
Console.WriteLine(o.type + " does not contain field " + names[i]);
return(null);
}
if (found.is_vt)
{
obj new_o = new obj();
new_o.addr = o.addr + (ulong)found.offset;
new_o.is_vt = true;
new_o.type = found.type;
new_o.value = mem.get_mem(new_o.addr, (int)found.size);
o = new_o;
}
else
{
o = obj.get_obj((ulong)found.value);
}
}
return(o);
}
if (vars.ContainsKey(name))
{
vars[name] = obj.get_obj(vars[name].addr);
return(vars[name]);
}
if (name.StartsWith("[") && name.EndsWith("]"))
{
string reg_name = name.Substring(1, name.Length - 2);
dbgarch.register r = Program.arch.get_reg(reg_name);
if (r == null)
{
return(null);
}
ulong?r_val = await.get_register(new await.state(), r.id);
if (r_val.HasValue)
{
return(obj.get_obj(r_val.Value));
}
else
{
return(null);
}
}
if (name.StartsWith("*"))
{
string mem_addr = name.Substring(1);
if (mem_addr.StartsWith("0x"))
{
mem_addr = mem_addr.Substring(2);
}
try
{
ulong m_addr_u = ulong.Parse(mem_addr, System.Globalization.NumberStyles.HexNumber);
return(obj.get_obj(m_addr_u));
}
catch (Exception)
{
return(null);
}
}
return(null);
}
