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+--  GHDL Run Time (GRT) - RTI utilities.
+--  Copyright (C) 2002 - 2014 Tristan Gingold
+--
+--  GHDL is free software; you can redistribute it and/or modify it under
+--  the terms of the GNU General Public License as published by the Free
+--  Software Foundation; either version 2, or (at your option) any later
+--  version.
+--
+--  GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
+--  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+--  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+--  for more details.
+--
+--  You should have received a copy of the GNU General Public License
+--  along with GCC; see the file COPYING.  If not, write to the Free
+--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+--  02111-1307, USA.
+--
+--  As a special exception, if other files instantiate generics from this
+--  unit, or you link this unit with other files to produce an executable,
+--  this unit does not by itself cause the resulting executable to be
+--  covered by the GNU General Public License. This exception does not
+--  however invalidate any other reasons why the executable file might be
+--  covered by the GNU Public License.
+with System; use System;
+with Grt.Types; use Grt.Types;
+with Grt.Rtis; use Grt.Rtis;
+with Grt.Rtis_Addr; use Grt.Rtis_Addr;
+with Grt.Vstrings; use Grt.Vstrings;
+with Grt.Stdio; use Grt.Stdio;
+
+package Grt.Rtis_Utils is
+   --  Action to perform after a node was handled by the user function:
+   --  Traverse_Ok: continue to process.
+   --  Traverse_Skip: do not traverse children.
+   --  Traverse_Stop: end of walk.
+   type Traverse_Result is (Traverse_Ok, Traverse_Skip, Traverse_Stop);
+
+   --  An RTI object is a context and an RTI declaration.
+   type Rti_Object is record
+      Obj : Ghdl_Rti_Access;
+      Ctxt : Rti_Context;
+   end record;
+
+   --  Traverse all blocks (package, entities, architectures, block, generate,
+   --  processes).
+   generic
+      with function Process (Ctxt : Rti_Context;
+                             Obj : Ghdl_Rti_Access)
+                            return Traverse_Result;
+   function Traverse_Blocks (Ctxt : Rti_Context) return Traverse_Result;
+
+   generic
+      type Param_Type is private;
+      with procedure Process (Val_Addr : Address;
+                              Val_Name : Vstring;
+                              Val_Type : Ghdl_Rti_Access;
+                              Param : Param_Type);
+   procedure Foreach_Scalar (Ctxt : Rti_Context;
+                             Obj_Type : Ghdl_Rti_Access;
+                             Obj_Addr : Address;
+                             Is_Sig : Boolean;
+                             Param : Param_Type);
+
+   procedure Get_Value (Str : in out Vstring;
+                        Value : Value_Union;
+                        Type_Rti : Ghdl_Rti_Access);
+
+   --  Get the name of a physical unit.
+   function Get_Physical_Unit_Name (Unit : Ghdl_Rti_Access)
+                                   return Ghdl_C_String;
+
+   --  Get the value of a physical unit.
+   function Get_Physical_Unit_Value (Unit : Ghdl_Rti_Access;
+                                     Type_Rti : Ghdl_Rti_Access)
+                                    return Ghdl_I64;
+
+   --  Disp a value.
+   procedure Disp_Value (Stream : FILEs;
+                         Value : Value_Union;
+                         Type_Rti : Ghdl_Rti_Access);
+
+   --  Get context as a path name.
+   --  If IS_INSTANCE is true, the architecture name of entities is added.
+   procedure Get_Path_Name (Rstr : in out Rstring;
+                            Last_Ctxt : Rti_Context;
+                            Sep : Character;
+                            Is_Instance : Boolean := True);
+
+   --  Disp a context as a path.
+   procedure Put (Stream : FILEs; Ctxt : Rti_Context);
+end Grt.Rtis_Utils;