ocarina-backends-c_common-types.adb 58.8 KB
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------------------------------------------------------------------------------
--                                                                          --
--                           OCARINA COMPONENTS                             --
--                                                                          --
--      O C A R I N A . B A C K E N D S . C _ C O M M O N . T Y P E S       --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
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--          Copyright (C) 2008-2010, European Space Agency (ESA).           --
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--                                                                          --
-- Ocarina  is free software;  you  can  redistribute  it and/or  modify    --
-- it under terms of the GNU General Public License as published by the     --
-- Free Software Foundation; either version 2, or (at your option) any      --
-- later version. Ocarina 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 distributed with Ocarina; see file COPYING.   --
-- If not, write to the Free Software Foundation, 51 Franklin Street, Fifth --
-- Floor, Boston, MA 02111-1301, 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.                                       --
--                                                                          --
--                 Ocarina is maintained by the Ocarina team                --
--                       (ocarina-users@listes.enst.fr)                     --
--                                                                          --
------------------------------------------------------------------------------

with Namet; use Namet;

with Ocarina.ME_AADL;
with Ocarina.ME_AADL.AADL_Tree.Nodes;
with Ocarina.ME_AADL.AADL_Instances.Nodes;
with Ocarina.ME_AADL.AADL_Instances.Nutils;
with Ocarina.ME_AADL.AADL_Instances.Entities;
with Ocarina.Backends.POK_C;
with Ocarina.Backends.PO_HI_C;
with Ocarina.Backends.C_Common;
with Ocarina.Backends.Utils;
with Ocarina.Backends.Properties;
with Ocarina.Backends.Messages;
with Ocarina.Backends.C_Tree.Nutils;
with Ocarina.Backends.C_Tree.Nodes;
with Ocarina.Backends.C_Values;
with Ocarina.Backends.C_Common.Mapping;
with Ocarina.Backends.PO_HI_C.Runtime;
with Ocarina.Backends.POK_C.Runtime;

package body Ocarina.Backends.C_Common.Types is

   use Ocarina.ME_AADL;
   use Ocarina.ME_AADL.AADL_Instances.Nodes;
   use Ocarina.ME_AADL.AADL_Instances.Entities;
   use Ocarina.Backends.Utils;
   use Ocarina.Backends.Properties;
   use Ocarina.Backends.Messages;
   use Ocarina.Backends.C_Tree.Nutils;
   use Ocarina.Backends.C_Common.Mapping;
   use Ocarina.Backends.PO_HI_C.Runtime;
   use Ocarina.Backends.POK_C;
   use Ocarina.Backends.POK_C.Runtime;

   package ATN renames Ocarina.ME_AADL.AADL_Tree.Nodes;
   package AIN renames Ocarina.ME_AADL.AADL_Instances.Nodes;
   package AINU renames Ocarina.ME_AADL.AADL_Instances.Nutils;
   package CTN renames Ocarina.Backends.C_Tree.Nodes;
   package CTU renames Ocarina.Backends.C_Tree.Nutils;
   package CV renames Ocarina.Backends.C_Values;
   package PKR renames Ocarina.Backends.POK_C.Runtime;
   package PHR renames Ocarina.Backends.PO_HI_C.Runtime;

   C_Root : Node_Id;

   -----------------
   -- Header_File --
   -----------------

   package body Header_File is

      procedure Visit_Architecture_Instance (E : Node_Id);
      procedure Visit_Component_Instance (E : Node_Id);
      procedure Visit_System_Instance (E : Node_Id);
      procedure Visit_Process_Instance
         (E : Node_Id; Real_Process : Boolean := True);
      procedure Visit_Processor_Instance (E : Node_Id);
      procedure Visit_Virtual_Processor_Instance (E : Node_Id);
      procedure Visit_Thread_Instance (E : Node_Id);
      procedure Visit_Subprogram_Instance (E : Node_Id);
      procedure Visit_Data_Instance (E : Node_Id);
      procedure Visit_Device_Instance (E : Node_Id);
      function Feature_Spg_Spec (E : Node_Id) return Node_Id;

      ----------------------
      -- Feature_Spg_Spec --
      ----------------------

      function Feature_Spg_Spec (E : Node_Id) return Node_Id is
         N          : Node_Id;
         Spg        : Node_Id;
         Parameters : constant List_Id := New_List (CTN.K_Parameter_List);
      begin
         pragma Assert (Kind (E) = K_Subprogram_Spec_Instance
                          or else Kind (E) = K_Subcomponent_Access_Instance);

         Spg := Corresponding_Instance (E);

         pragma Assert (AINU.Is_Subprogram (Spg));

         Append_Node_To_List
           (Make_Parameter_Specification
            (Defining_Identifier =>
               Make_Defining_Identifier (PN (P_Value)),
             Parameter_Type =>
               Make_Pointer_Type
               (Map_C_Defining_Identifier
                (Parent_Component (E)))),
            Parameters);

         N := Make_Function_Specification
           (Defining_Identifier => Map_C_Feature_Subprogram (E),
            Parameters          => Parameters,
            Return_Type         => New_Node (CTN.K_Void)
           );
         return N;
      end Feature_Spg_Spec;

      -----------
      -- Visit --
      -----------

      procedure Visit (E : Node_Id; C : Node_Id := No_Node) is
      begin
         if C /= No_Node then
            C_Root := C;
         end if;

         case Kind (E) is
            when K_Architecture_Instance =>
               Visit_Architecture_Instance (E);

            when K_Component_Instance =>
               Visit_Component_Instance (E);

            when others =>
               null;
         end case;
      end Visit;

      ---------------------------------
      -- Visit_Architecture_Instance --
      ---------------------------------

      procedure Visit_Architecture_Instance (E : Node_Id) is
      begin
         Visit (Root_System (E));
      end Visit_Architecture_Instance;

      ------------------------------
      -- Visit_Component_Instance --
      ------------------------------

      procedure Visit_Component_Instance (E : Node_Id) is
         Category : constant Component_Category
           := Get_Category_Of_Component (E);
      begin
         case Category is
            when CC_System =>
               Visit_System_Instance (E);

            when CC_Process =>
               Visit_Process_Instance (E);

            when CC_Thread =>
               Visit_Thread_Instance (E);

            when CC_Data =>
               Visit_Data_Instance (E);

            when CC_Device =>
               Visit_Device_Instance (E);

            when CC_Processor =>
               Visit_Processor_Instance (E);

            when CC_Virtual_Processor =>
               Visit_Virtual_Processor_Instance (E);

            when CC_Subprogram =>
               Visit_Subprogram_Instance (E);

            when others =>
               null;
         end case;
      end Visit_Component_Instance;

      ---------------------------
      -- Visit_Device_Instance --
      ---------------------------

      procedure Visit_Device_Instance (E : Node_Id) is
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         U               : Node_Id;
         P               : Node_Id;
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         Implementation  : Node_Id;
         S               : Node_Id;
      begin
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         if Get_Current_Backend_Kind = PolyORB_Kernel_C then
            U := CTN.Distributed_Application_Unit
               (CTN.Naming_Node (Backend_Node (Identifier (E))));
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            P := CTN.Entity (U);
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            Push_Entity (P);
            Push_Entity (U);
         end if;
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         Implementation := Get_Implementation (E);
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         if Implementation /= No_Node then
            if not AINU.Is_Empty (AIN.Subcomponents (Implementation)) then
               S := First_Node (Subcomponents (Implementation));
               while Present (S) loop
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                  if Get_Current_Backend_Kind = PolyORB_Kernel_C then
                     if Get_Category_Of_Component (S) = CC_Process then
                        Visit_Process_Instance
                           (Corresponding_Instance (S), False);
                     end if;
                  else
                     Visit
                        (Corresponding_Instance (S));
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                  end if;

                  S := Next_Node (S);
               end loop;
            end if;

         end if;

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         if Get_Current_Backend_Kind = PolyORB_Kernel_C then
            Pop_Entity; -- U
            Pop_Entity; -- P
         end if;
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      end Visit_Device_Instance;

      ------------------------------
      -- Visit_Processor_Instance --
      ------------------------------

      procedure Visit_Processor_Instance (E : Node_Id) is
         S : Node_Id;
         A : Node_Id;
      begin
         if Get_Current_Backend_Kind /= PolyORB_Kernel_C then
            return;
         end if;

         A := CTN.Deployment_Node (Backend_Node (Identifier (E)));
         Push_Entity (C_Root);
         Push_Entity (A);

         if not AINU.Is_Empty (Subcomponents (E)) then
            S := First_Node (Subcomponents (E));
            while Present (S) loop
               --  Visit the component instance corresponding to the
               --  subcomponent S.

               Visit (Corresponding_Instance (S));
               S := Next_Node (S);
            end loop;
         end if;

         Pop_Entity;
         Pop_Entity;
      end Visit_Processor_Instance;

      --------------------------------------
      -- Visit_Virtual_Processor_Instance --
      --------------------------------------

      procedure Visit_Virtual_Processor_Instance (E : Node_Id) is
         Processes   : List_Id;
         S           : Node_Id;
      begin
         if Get_Current_Backend_Kind /= PolyORB_Kernel_C then
            return;
         end if;

         if Present (Backend_Node (Identifier (E))) then
            Processes := CTN.Processes (Backend_Node (Identifier (E)));
            S := AIN.First_Node (Processes);
            while Present (S) loop
               Visit (AIN.Item (S));
               S := AIN.Next_Node (S);
            end loop;
         end if;
      end Visit_Virtual_Processor_Instance;

      -------------------------
      -- Visit_Data_Instance --
      -------------------------

      procedure Visit_Data_Instance (E : Node_Id) is
         Data_Representation   : Supported_Data_Representation;
         N                     : Node_Id;
         M                     : Node_Id;
         S                     : Node_Id;
         R                     : Node_Id;
         Data_Size             : Size_Type;
         Data_Array_Size       : constant ULL_Array := Get_Dimension (E);
         Number_Representation : constant Supported_Number_Representation
                     := Get_Number_Representation (E);
         Is_Signed : constant Boolean
           := (Number_Representation = Representation_Signed);

         Type_Uint8            : Node_Id;
         Type_Int8             : Node_Id;
         Type_Uint16           : Node_Id;
         Type_Int16            : Node_Id;
         Type_Uint32           : Node_Id;
         Type_Int32            : Node_Id;
         Type_Uint64           : Node_Id;
         Type_Int64            : Node_Id;
         Type_Source_Name      : Name_Id;

         Actual_Data_Size      : Unsigned_Long_Long;
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         Struct_Members             : constant List_Id := New_List
                                    (CTN.K_Enumeration_Literals);
         Protected_Struct_Members   : constant List_Id := New_List
                                    (CTN.K_Enumeration_Literals);
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      begin
         if No (Get_Handling (E, By_Name, H_C_Type_Spec)) then
            if Get_Current_Backend_Kind = PolyORB_HI_C then
               Add_Include (PHR.RH (RH_PO_HI_Types));
               Type_Uint8 := PHR.RE (RE_Uint8_T);
               Type_Int8 := PHR.RE (RE_Int8_T);
               Type_Uint16 := PHR.RE (RE_Uint16_T);
               Type_Int16 := PHR.RE (RE_Int16_T);
               Type_Uint32 := PHR.RE (RE_Uint32_T);
               Type_Int32 := PHR.RE (RE_Int32_T);
               Type_Uint64 := PHR.RE (RE_Uint64_T);
               Type_Int64 := PHR.RE (RE_Int64_T);
            elsif Get_Current_Backend_Kind = PolyORB_Kernel_C then
               Add_Include (PKR.RH (RH_Types));
               Type_Uint8 := PKR.RE (RE_Uint8_T);
               Type_Int8 := PKR.RE (RE_Int8_T);
               Type_Uint16 := PKR.RE (RE_Uint16_T);
               Type_Int16 := PKR.RE (RE_Int16_T);
               Type_Uint32 := PKR.RE (RE_Uint32_T);
               Type_Int32 := PKR.RE (RE_Int32_T);
               Type_Uint64 := PKR.RE (RE_Uint64_T);
               Type_Int64 := PKR.RE (RE_Int64_T);
            end if;

            Data_Representation := Get_Data_Representation (E);
            Data_Size := Get_Data_Size (E);
            Actual_Data_Size := To_Bytes (Data_Size);

            case Data_Representation is
               when Data_Boolean =>
                  N := Make_Full_Type_Declaration
                    (Defining_Identifier => Map_C_Defining_Identifier (E),
                     Type_Definition => PHR.RE (RE_Bool_T));
                  Append_Node_To_List
                    (N, CTN.Declarations (Current_File));

               when Data_Float =>
                  if Data_Size.S = 0 then
                     --  If no size info is given, we default to float
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition     => Make_Defining_Identifier
                          (TN (T_Float)));
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  elsif Actual_Data_Size = 4 then
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition => PHR.RE (RE_Float32_T));
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  elsif Actual_Data_Size = 8 then
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition => PHR.RE (RE_Float64_T));
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  else
                     Display_Located_Error
                       (Loc (E), "Unsupported data size: "
                          & Actual_Data_Size'Img, Fatal => True);
                  end if;

               when Data_Integer =>
                  if Data_Size.S = 0 then
                     --  If no size info is given, we default to int

                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition     => Make_Defining_Identifier
                        (TN (T_Int)));
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  elsif Actual_Data_Size = 1 and then Is_Signed then
                     R := Type_Int8;
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition => R);
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  elsif Actual_Data_Size = 1 and then not Is_Signed then
                     R := Type_Uint8;
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition => R);
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  elsif Actual_Data_Size = 2 and then Is_Signed then
                     R := Type_Int16;
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition => R);
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  elsif Actual_Data_Size = 2 and then not Is_Signed then
                     R := Type_Uint16;
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition => R);
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  elsif Actual_Data_Size = 4 and then Is_Signed then
                     R := Type_Int32;
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition => R);
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  elsif Actual_Data_Size = 4 and then not Is_Signed then
                     R := Type_Uint32;
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition => R);
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  elsif Actual_Data_Size = 8 and then Is_Signed then
                     R := Type_Int64;
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition => R);
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  elsif Actual_Data_Size = 8 and then not Is_Signed then
                     R := Type_Uint64;
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition => R);
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                  else
                     Display_Located_Error
                       (Loc (E), "Unsupported data size"
                          & Actual_Data_Size'Img, Fatal => True);
                  end if;

               when Data_Struct | Data_With_Accessors =>
                  declare
                     C          : Node_Id := No_Node;
                  begin
                     if No (Subcomponents (E)) then
                        C := No_Node;
                     else
                        C := First_Node (Subcomponents (E));
                     end if;
                     --  Build the component list

                     while Present (C) loop
                        --  Generate the C type corresponding to the
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                        --  subcomponents.
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                        if AINU.Is_Data (Corresponding_Instance (C)) then
                           Visit (Corresponding_Instance (C));
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                           --  Make the record or private type component
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                           N := Make_Member_Declaration
                             (Defining_Identifier =>
                                Map_C_Defining_Identifier (C),
                              Used_Type  => Map_C_Data_Type_Designator
                                (Corresponding_Instance (C)));
                           Append_Node_To_List (N, Struct_Members);
                        end if;
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                        C := Next_Node (C);
                     end loop;

                     if Data_Representation = Data_Struct then
                        --  Record type

                        N := Make_Full_Type_Declaration
                          (Defining_Identifier =>
                              Map_C_Defining_Identifier (E),
                           Type_Definition     => Make_Struct_Aggregate
                             (Members => Struct_Members));
                        Append_Node_To_List
                          (N, CTN.Declarations (Current_File));

                     else
                        --  Protected type
                        Append_Node_To_List
                          (Make_Member_Declaration
                           (Used_Type => RE (RE_Protected_T),
                            Defining_Identifier =>
                              Make_Defining_Identifier
                              (MN (M_Protected_Id))),
                           Protected_Struct_Members);

                        if not Is_Empty (Struct_Members) then
                           S := CTN.First_Node (Struct_Members);
                           while Present (S) loop
                              Append_Node_To_List
                                (S, Protected_Struct_Members);
                              S := CTN.Next_Node (S);
                           end loop;
                        end if;

                        N := Make_Full_Type_Declaration
                          (Defining_Identifier =>
                              Map_C_Defining_Identifier (E),
                           Type_Definition =>
                             Make_Struct_Aggregate
                             (Members =>
                                Protected_Struct_Members));

                        Append_Node_To_List
                          (N, CTN.Declarations (Current_File));

                        S := First_Node (Features (E));

                        while Present (S) loop
                           --  We are sure that S is of kind
                           --  K_Subprogram_Spec_Instance. Otherwise,
                           --  an error whould be raised when trying
                           --  to find the data type.

                           --  Build a subprogram spec and append it
                           --  to the visible part of the protected
                           --  type.

                           M := Feature_Spg_Spec (S);
                           Bind_AADL_To_Feature_Subprogram
                              (Identifier (S), M);
                           Append_Node_To_List
                             (M, CTN.Declarations (Current_File));

                           S := Next_Node (S);
                        end loop;
                     end if;
                  end;

               when Data_Enum =>
                  declare
                     Enumerators : constant Name_Array := Get_Enumerators (E);
                     Enum_Members : constant List_Id := New_List
                       (CTN.K_Enumeration_Literals);
                  begin
                     for J in Enumerators'Range loop
                        Append_Node_To_List
                          (Make_Defining_Identifier
                             (Map_C_Enum_Name (E, Enumerators (J))),
                           Enum_Members);
                     end loop;

                     N := Make_Full_Type_Declaration
                       (Defining_Identifier =>
                          Map_C_Defining_Identifier (E),
                        Type_Definition =>
                          Make_Enum_Aggregate (Enum_Members));
                     Append_Node_To_List (N, CTN.Declarations (Current_File));
                  end;

               when Data_Array =>
                  Visit_Data_Instance
                     (ATN.Entity (ATN.First_Node (Get_Base_Type (E))));

                  N := Make_Full_Type_Declaration
                    (Defining_Identifier => Make_Array_Declaration
                        (Defining_Identifier =>
                           Map_C_Defining_Identifier (E),
                         Array_Size =>
                           Make_Literal
                              (CV.New_Int_Value (Data_Array_Size (1), 0, 10))),
                     Type_Definition     =>
                        Map_C_Defining_Identifier
                           (ATN.Entity (ATN.First_Node (Get_Base_Type (E)))));
                  Append_Node_To_List
                    (N, CTN.Declarations (Current_File));

               when Data_String =>
                  N := Make_Full_Type_Declaration
                    (Defining_Identifier => Make_Array_Declaration
                       (Defining_Identifier =>
                          Map_C_Defining_Identifier (E),
                        Array_Size =>
                          Make_Literal
                          (CV.New_Int_Value (Data_Array_Size (1), 0, 10))),
                     Type_Definition     => Make_Defining_Identifier
                       (TN (T_Char)));
                  Append_Node_To_List
                    (N, CTN.Declarations (Current_File));

               when Data_Character =>
                  N := Make_Full_Type_Declaration
                    (Defining_Identifier => Map_C_Defining_Identifier (E),
                     Type_Definition     => Make_Defining_Identifier
                       (TN (T_Char)));
                  Append_Node_To_List
                    (N, CTN.Declarations (Current_File));

               when Data_Wide_Character
                 | Data_Fixed
                 | Data_Wide_String
                 | Data_Union =>
                  Display_Located_Error
                    (Loc (E), "unsupported data type ("
                     & Supported_Data_Representation'Image
                     (Data_Representation) & ")",
                     Fatal => True);

               when Data_None =>
                  Type_Source_Name := Get_Type_Source_Name (E);

                  if Type_Source_Name /= No_Name then
                     N := Make_Full_Type_Declaration
                       (Defining_Identifier => Map_C_Defining_Identifier (E),
                        Type_Definition     =>
                           CTU.Make_Defining_Identifier
                              (Type_Source_Name, False));
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                     declare
                        Source_Files : constant Name_Array
                          := Get_Source_Text (E);
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                        To_Include : Name_Id;
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                     begin
                        if Source_Files'Length > 1 then
                           Display_Located_Error
                             (Loc (E),
                              "More than 1 header file for a C type",
                              Fatal => True);
                        elsif Source_Files'Length = 1 then
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                           To_Include := Source_Files (Source_Files'First);
                           Get_Name_String (To_Include);
                           if Name_Buffer (Name_Len - 3 .. Name_Len)
                              = ".asn" then
                              Name_Len := Name_Len - 4;
                              To_Include := Name_Find;
                           end if;

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                           Add_Include
                             (Make_Include_Clause
                                (Make_Defining_Identifier
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                                   (To_Include, False)),
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                              Preserve_Case => True);
                        end if;
                     end;

                     if Get_Source_Language (E) = Language_Simulink then
                        Add_Include
                           (Make_Include_Clause
                              (Make_Defining_Identifier
                                 (Get_String_Name ("rtwtypes"), False),
                              False),
                           True);
                     end if;
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                  elsif Get_Concurrency_Protocol (E) =
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                     Concurrency_Protected_Access
                     or else
                     Get_Concurrency_Protocol (E) =
                        Concurrency_Immediate_Priority_Ceiling
                     or else
                     Get_Concurrency_Protocol (E) =
                        Concurrency_Priority_Inheritance
                     or else
                     Get_Concurrency_Protocol (E) =
                        Concurrency_Priority_Ceiling
                  then
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                     --  Protected type that does not have struct members.
                     --  This piece of code is made to handle declaration
                     --  such as:
                     --  data implementation foo.i
                     --  *** NOTHING ***
                     --  properties
                     --     Concurrency_Control_Protocol => Protected_Access;
                     --  end foo.i;

                     --  Other protected objects are data components that have
                     --  subprogram accesses.

                     Append_Node_To_List
                       (Make_Member_Declaration
                        (Used_Type => RE (RE_Protected_T),
                         Defining_Identifier =>
                           Make_Defining_Identifier
                           (MN (M_Protected_Id))),
                        Protected_Struct_Members);

                     if not Is_Empty (Struct_Members) then
                        S := CTN.First_Node (Struct_Members);
                        while Present (S) loop
                           Append_Node_To_List
                             (S, Protected_Struct_Members);
                           S := CTN.Next_Node (S);
                        end loop;
                     end if;

                     N := Make_Full_Type_Declaration
                       (Defining_Identifier =>
                           Map_C_Defining_Identifier (E),
                        Type_Definition =>
                          Make_Struct_Aggregate
                          (Members =>
                             Protected_Struct_Members));

                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

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                  else
                     Display_Located_Error
                        (Loc (E), "unspecified data representation",
                        Fatal => True);
                  end if;
            end case;

            --  Mark the data type as being handled an append it to
            --  the handled list.

            Set_Handling (E, By_Name, H_C_Type_Spec, N);

            --  In the case of a data type with accessor, visit the
            --  parameters of its features subprograms. It is
            --  important to do this *after* marking the type as
            --  handled, to avoid endless loops and *before* adding
            --  the type declaration to the package statements because
            --  the declaration order of type is important.

            if Get_Current_Backend_Kind = PolyORB_HI_C then
               if Data_Representation = Data_With_Accessors then
                  S := First_Node (Features (E));

                  while Present (S) loop
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                     if AINU.Is_Data (Corresponding_Instance (S)) then
                        Visit (Corresponding_Instance (S));
                     end if;
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                     S := Next_Node (S);
                  end loop;
               end if;
            end if;
         end if;

         Bind_AADL_To_Type_Definition
           (Identifier (E),
            Get_Handling (E, By_Name, H_C_Type_Spec));
      end Visit_Data_Instance;

      ----------------------------
      -- Visit_Process_Instance --
      ----------------------------

      procedure Visit_Process_Instance
         (E : Node_Id; Real_Process : Boolean := True) is
         S : Node_Id;
         C : Node_Id;
         F : Node_Id;
         I : Node_Id;
         J : Node_Id;
         D : Node_Id;
         U : Node_Id;
         P : Node_Id;
         Declaration          : Node_Id;
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         The_System : constant Node_Id := Parent_Component
           (Parent_Subcomponent (E));
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         Remote_Process : Node_Id;
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      begin
         if Real_Process then
            U := CTN.Distributed_Application_Unit
              (CTN.Naming_Node (Backend_Node (Identifier (E))));
            P := CTN.Entity (U);

            Push_Entity (P);
            Push_Entity (U);
         end if;

         Set_Types_Header;

         --  Start recording the handling since they have to be reset
         --  for each node.

         Start_Recording_Handlings;

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         if Get_Current_Backend_Kind = PolyORB_Kernel_C
           and then not AINU.Is_Empty (Subcomponents (E))
         then
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            S := First_Node (Subcomponents (E));

            while Present (S) loop
               --  Visit the component instance corresponding to the
               --  subcomponent S.

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               if AINU.Is_Data (Corresponding_Instance (S))
                 and then Is_Protected_Data (Corresponding_Instance (S))
               then
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                  Add_Include (PKR.RH (RH_Deployment));

                  if POK_Flavor = ARINC653 then
                     Declaration := Make_Extern_Entity_Declaration
                        (Make_Variable_Declaration
                           (Make_Defining_Identifier
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                              (Map_Associated_Locking_Entity_Name (S)),
                            PKR.RE (RE_Semaphore_Id_Type)));
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                  else
                     Declaration := Make_Extern_Entity_Declaration
                        (Make_Variable_Declaration
                           (Make_Defining_Identifier
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                              (Map_Associated_Locking_Entity_Name (S)),
                            PKR.RE (RE_Pok_Sem_Id_T)));
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                  end if;

                  Append_Node_To_List
                     (Declaration, CTN.Declarations (Current_File));
               end if;

               S := Next_Node (S);
            end loop;
         end if;

         --  Visit all the subcomponents of the process

         if not AINU.Is_Empty (Subcomponents (E)) then
            S := First_Node (Subcomponents (E));
            while Present (S) loop
               --  Visit the component instance corresponding to the
               --  subcomponent S.

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               Visit (Corresponding_Instance (S));
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               S := Next_Node (S);
            end loop;
         end if;

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         --  Visit all devices attached to the parent system that
         --  share the same processor as process E.

         if Get_Current_Backend_Kind = PolyORB_HI_C and then
            not AINU.Is_Empty (Subcomponents (The_System)) then
            C := First_Node (Subcomponents (The_System));
            while Present (C) loop
               if AINU.Is_Device (Corresponding_Instance (C))
               and then
                 Get_Bound_Processor (Corresponding_Instance (C))
                 = Get_Bound_Processor (E)
               then
                  --  Build the enumerator corresponding to the device
                  --  Note: we reuse the process name XXX
                  Visit_Device_Instance (Corresponding_Instance (C));
               end if;
               C := Next_Node (C);
            end loop;
         end if;

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         --  We visit all the data of connected components, because
         --  we may need them in case of a distributed system.

         if not AINU.Is_Empty (Features (E)) then
            C := First_Node (Features (E));

            while Present (C) loop
               if Kind (C) = K_Port_Spec_Instance and then
                 not AINU.Is_Empty (Destinations (C)) then
                  D := First_Node (Destinations (C));
                  I := Item (D);

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                  if Get_Category_Of_Component
                     (Parent_Component (I)) = CC_Process then
                     Remote_Process := Parent_Component (I);

                     if not AINU.Is_Empty (Subcomponents (Remote_Process)) then
                        S := First_Node (Subcomponents (Remote_Process));
                        while Present (S) loop

                           Visit (Corresponding_Instance (S));

                           S := Next_Node (S);
                        end loop;
                     end if;
                  end if;

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                  if Present (I) and then
                    Kind (I) = K_Port_Spec_Instance and then
                    not AINU.Is_Empty (Destinations (I)) then
                     F := First_Node (Destinations (I));
                     while Present (F) loop
                        J := Item (F);

                        if Present (J) then
                           Visit (Parent_Component (J));
                        end if;
                        F := Next_Node (F);
                     end loop;
                  end if;
                  D := Next_Node (D);
               end if;

               C := Next_Node (C);
            end loop;
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            C := First_Node (Features (E));

            while Present (C) loop
               if Kind (C) = K_Port_Spec_Instance and then
                 not AINU.Is_Empty (Sources (C)) then
                  D := First_Node (Sources (C));
                  I := Item (D);

                  if Get_Category_Of_Component
                     (Parent_Component (I)) = CC_Process then
                     Remote_Process := Parent_Component (I);

                     if not AINU.Is_Empty (Subcomponents (Remote_Process)) then
                        S := First_Node (Subcomponents (Remote_Process));
                        while Present (S) loop

                           Visit (Corresponding_Instance (S));

                           S := Next_Node (S);
                        end loop;
                     end if;
                  end if;

                  if Present (I) and then
                    Kind (I) = K_Port_Spec_Instance and then
                    not AINU.Is_Empty (Sources (I)) then
                     F := First_Node (Sources (I));
                     while Present (F) loop
                        J := Item (F);

                        if Present (J) then
                           Visit (Parent_Component (J));
                        end if;
                        F := Next_Node (F);
                     end loop;
                  end if;
                  D := Next_Node (D);
               end if;

               C := Next_Node (C);
            end loop;

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         end if;

         --  Unmark all the marked types

         Reset_Handlings;

         if Real_Process then
            Pop_Entity; -- U
            Pop_Entity; -- P
         end if;
      end Visit_Process_Instance;

      -------------------------------
      -- Visit_Subprogram_Instance --
      -------------------------------

      procedure Visit_Subprogram_Instance (E : Node_Id) is
         F        : Node_Id;
         Call_Seq : Node_Id;
         Spg_Call : Node_Id;

      begin
         --  Declare all necessary data types

         if not AINU.Is_Empty (Features (E)) then
            F := First_Node (Features (E));

            while Present (F) loop
               if Kind (F) = K_Port_Spec_Instance then
                  Display_Located_Error
                    (Loc (F),
                     "Port features in subprogram are not supported",
                     Fatal => True);
               end if;

               if Present (Corresponding_Instance (F)) then
                  Visit (Corresponding_Instance (F));
               end if;

               F := Next_Node (F);
            end loop;
         end if;

         --  Visit all the call sequences of the subprogram

         if not AINU.Is_Empty (Calls (E)) then
            Call_Seq := First_Node (Calls (E));

            while Present (Call_Seq) loop
               --  For each call sequence visit all the called
               --  subprograms.

               if not AINU.Is_Empty (Subprogram_Calls (Call_Seq)) then
                  Spg_Call := First_Node (Subprogram_Calls (Call_Seq));

                  while Present (Spg_Call) loop
                     Visit (Corresponding_Instance (Spg_Call));

                     Spg_Call := Next_Node (Spg_Call);
                  end loop;
               end if;

               Call_Seq := Next_Node (Call_Seq);
            end loop;
         end if;
      end Visit_Subprogram_Instance;

      ---------------------------
      -- Visit_System_Instance --
      ---------------------------

      procedure Visit_System_Instance (E : Node_Id) is
         S : Node_Id;
      begin
         if Get_Current_Backend_Kind /= PolyORB_Kernel_C then
            Push_Entity (C_Root);
         end if;

         --  Visit all the subcomponents of the system

         if not AINU.Is_Empty (Subcomponents (E)) then
            S := First_Node (Subcomponents (E));
            while Present (S) loop
               --  Visit the component instance corresponding to the
               --  subcomponent S. We don't parse directly process
               --  components for the POK backend. Instead, we parse
               --  all processes components from their runtime
               --  (processor or virtual processor).

               if Get_Current_Backend_Kind = PolyORB_Kernel_C
                  and then AINU.Is_Process_Or_Device
                     (Corresponding_Instance (S))
               then
                  null;
               else
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                  if Get_Category_Of_Component
                     (Corresponding_Instance (S)) /= CC_Device then
                     Visit (Corresponding_Instance (S));
                  end if;
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               end if;
               S := Next_Node (S);
            end loop;
         end if;

         if Get_Current_Backend_Kind /= PolyORB_Kernel_C then
            Pop_Entity; --  C_Root
         end if;
      end Visit_System_Instance;

      ---------------------------
      -- Visit_Thread_Instance --
      ---------------------------

      procedure Visit_Thread_Instance (E : Node_Id) is
         Call_Seq : Node_Id;
         Spg_Call : Node_Id;
         F        : Node_Id;
      begin
         if not AINU.Is_Empty (Features (E)) then
            F := First_Node (Features (E));

            while Present (F) loop
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               if Kind (F) = K_Port_Spec_Instance
                 and then AIN.Is_Data (F)
               then
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                  Visit (Corresponding_Instance (F));
               end if;

               F := Next_Node (F);
            end loop;
         end if;

         --  Visit all the call sequences of the thread

         if not AINU.Is_Empty (Calls (E)) then
            Call_Seq := First_Node (Calls (E));

            while Present (Call_Seq) loop
               --  For each call sequence visit all the called
               --  subprograms.

               if not AINU.Is_Empty (Subprogram_Calls (Call_Seq)) then
                  Spg_Call := First_Node (Subprogram_Calls (Call_Seq));

                  while Present (Spg_Call) loop
                     Visit (Corresponding_Instance (Spg_Call));

                     Spg_Call := Next_Node (Spg_Call);
                  end loop;
               end if;

               Call_Seq := Next_Node (Call_Seq);
            end loop;
         end if;
      end Visit_Thread_Instance;

   end Header_File;

   -----------------
   -- Source_File --
   -----------------

   package body Source_File is

      procedure Visit_Architecture_Instance (E : Node_Id);
      procedure Visit_Component_Instance (E : Node_Id);
      procedure Visit_System_Instance (E : Node_Id);
      procedure Visit_Process_Instance (E : Node_Id);
      procedure Visit_Processor_Instance (E : Node_Id);
      procedure Visit_Virtual_Processor_Instance (E : Node_Id);
      procedure Visit_Thread_Instance (E : Node_Id);
      procedure Visit_Subprogram_Instance (E : Node_Id);
      procedure Visit_Data_Instance (E : Node_Id);

      function Feature_Spg_Body (E : Node_Id) return Node_Id;
      --  Builds a body for a protected object procedure from an AADL
      --  subprogram spec E.

      ----------------------
      -- Feature_Spg_Body --
      ----------------------

      function Feature_Spg_Body (E : Node_Id) return Node_Id is
         N            : Node_Id;
         Call_Profile : List_Id;
         Param        : Node_Id;
         C_Access     : Node_Id;
         D            : Node_Id;
         Statements   : constant List_Id := New_List (CTN.K_Statement_List);
         Spg          : Node_Id;
      begin
         pragma Assert (Kind (E) = K_Subprogram_Spec_Instance
                          or else Kind (E) = K_Subcomponent_Access_Instance);

         Spg := Corresponding_Instance (E);

         pragma Assert (AINU.Is_Subprogram (Spg));

         --  Make the call to __po_hi_protected_lock
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         Call_Profile := New_List (CTN.K_Parameter_Profile);
         Append_Node_To_List
           (Make_Member_Designator
            (Make_Defining_Identifier (MN (M_Protected_Id)),
             Make_Defining_Identifier (PN (P_Value)),
             Is_Pointer => True),
            Call_Profile);

         Append_Node_To_List
           (Make_Call_Profile
            (Defining_Identifier => RE (RE_Protected_Lock),
             Parameters => Call_Profile), Statements);

         Call_Profile := New_List (CTN.K_Parameter_Profile);

         if not AINU.Is_Empty (Features (Spg)) then
            Param := First_Node (Features (Spg));

            while Present (Param) loop
               if Kind (Param) = K_Parameter_Instance then
                  --  Create a parameter association

                  N := Map_C_Defining_Identifier (Param);
                  Append_Node_To_List (N, Call_Profile);
               end if;

               Param := Next_Node (Param);
            end loop;
         end if;

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         --  2 - The list of all record fields given
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         --  FIXME: Respect the mapping rules by setting the correct
         --  parameter orientation. For now all parameter are
         --  considered IN OUT. Provide all necessary routines
         --  (passing through intermediate variables, to prevent the
         --  user from cheating).

         if not AINU.Is_Empty (Features (Spg)) then
            C_Access := First_Node (Features (Spg));

            while Present (C_Access) loop
               if Kind (C_Access) = K_Subcomponent_Access_Instance then
                  D := Corresponding_Instance (C_Access);

                  if not AINU.Is_Empty (Subcomponents (D)) then
                     Param := First_Node (Subcomponents (D));

                     while Present (Param) loop
                        --  Create a parameter association
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                        if AINU.Is_Data (Corresponding_Instance (Param)) then
                           N := Make_Variable_Address
                           (Make_Member_Designator
                              (Defining_Identifier =>
                                 Map_C_Defining_Identifier (Param),
                               Aggregate_Name =>
                                 Make_Defining_Identifier (PN (P_Value)),
                               Is_Pointer =>
                                 True));
                           Append_Node_To_List (N, Call_Profile);
                        end if;
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                        Param := Next_Node (Param);
                     end loop;
                  end if;
               end if;

               C_Access := Next_Node (C_Access);
            end loop;
         end if;

         --  Add an include subprograms.h in types.c
         --  If we use subprograms

         if Get_Current_Backend_Kind = PolyORB_HI_C then
            Add_Include (PKR.RH (RH_Subprograms));
         end if;

         N := Make_Call_Profile
           (CTN.Defining_Identifier
            (CTN.Subprogram_Node
             (Backend_Node
              (Identifier
               (Corresponding_Instance
                (E))))),
            Call_Profile);
         Append_Node_To_List (N, Statements);

         --  Make the call to __po_hi_protected_unlock

         Call_Profile := New_List (CTN.K_Parameter_Profile);
         Append_Node_To_List
           (Make_Member_Designator
            (Make_Defining_Identifier (MN (M_Protected_Id)),
             Make_Defining_Identifier (PN (P_Value)),
             Is_Pointer => True),
            Call_Profile);

         Append_Node_To_List
           (Make_Call_Profile
            (Defining_Identifier => RE (RE_Protected_Unlock),
             Parameters => Call_Profile), Statements);

         --  Build the subprogram implementation

         N := Make_Function_Implementation
           (CTN.Feature_Subprogram_Node
            (Backend_Node
             (Identifier (E))),
            No_List,
            Statements);

         return N;
      end Feature_Spg_Body;

      -----------
      -- Visit --
      -----------

      procedure Visit (E : Node_Id; C : Node_Id := No_Node) is
      begin
         if C /= No_Node then
            C_Root := C;
         end if;

         case Kind (E) is
            when K_Architecture_Instance =>
               Visit_Architecture_Instance (E);

            when K_Component_Instance =>
               Visit_Component_Instance (E);

            when others =>
               null;
         end case;
      end Visit;

      ---------------------------------
      -- Visit_Architecture_Instance --
      ---------------------------------

      procedure Visit_Architecture_Instance (E : Node_Id) is
      begin
         Visit (Root_System (E));
      end Visit_Architecture_Instance;

      ------------------------------
      -- Visit_Component_Instance --
      ------------------------------

      procedure Visit_Component_Instance (E : Node_Id) is
         Category : constant Component_Category
           := Get_Category_Of_Component (E);
      begin
         case Category is
            when CC_System =>
               Visit_System_Instance (E);

            when CC_Process =>
               Visit_Process_Instance (E);

            when CC_Processor =>
               Visit_Processor_Instance (E);

            when CC_Virtual_Processor =>
               Visit_Virtual_Processor_Instance (E);

            when CC_Thread =>
               Visit_Thread_Instance (E);

            when CC_Data =>
               Visit_Data_Instance (E);

            when CC_Subprogram =>
               Visit_Subprogram_Instance (E);

            when others =>
               null;
         end case;
      end Visit_Component_Instance;

      ------------------------------
      -- Visit_Processor_Instance --
      ------------------------------

      procedure Visit_Processor_Instance (E : Node_Id) is
         S : Node_Id;
         A : Node_Id;
      begin
         if Get_Current_Backend_Kind /= PolyORB_Kernel_C then
            return;
         end if;

         A := CTN.Deployment_Node (Backend_Node (Identifier (E)));
         Push_Entity (C_Root);
         Push_Entity (A);

         if not AINU.Is_Empty (Subcomponents (E)) then
            S := First_Node (Subcomponents (E));
            while Present (S) loop
               --  Visit the component instance corresponding to the
               --  subcomponent S.

               Visit (Corresponding_Instance (S));
               S := Next_Node (S);
            end loop;
         end if;

         Pop_Entity;
         Pop_Entity;
      end Visit_Processor_Instance;

      --------------------------------------
      -- Visit_Virtual_Processor_Instance --
      --------------------------------------

      procedure Visit_Virtual_Processor_Instance (E : Node_Id) is
         Processes   : List_Id;
         S           : Node_Id;
      begin
         if Get_Current_Backend_Kind /= PolyORB_Kernel_C then
            return;
         end if;

         if Present (Backend_Node (Identifier (E))) then
            Processes := CTN.Processes (Backend_Node (Identifier (E)));
            S := AIN.First_Node (Processes);
            while Present (S) loop
               Visit (AIN.Item (S));
               S := AIN.Next_Node (S);
            end loop;
         end if;
      end Visit_Virtual_Processor_Instance;

      -------------------------
      -- Visit_Data_Instance --
      -------------------------

      procedure Visit_Data_Instance (E : Node_Id) is
         N                   : Node_Id;
         Data_Representation : Supported_Data_Representation;
      begin
         if Get_Current_Backend_Kind = PolyORB_Kernel_C then
            return;
         end if;

         --  At this time, we don't need to visit data instance for the
         --  POK generator.

         Data_Representation := Get_Data_Representation (E);

         if Get_Current_Backend_Kind = PolyORB_HI_C then
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            Add_Include (PHR.RH (PHR.RH_Types));
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         end if;

         if Data_Representation = Data_With_Accessors then
            if No (Get_Handling (E, By_Name, H_C_Type_Body)) then
               declare
                  C          : Node_Id := First_Node (Subcomponents (E));
                  S          : Node_Id;
               begin
                  --  Visit the subcomponents

                  while Present (C) loop
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                     if AINU.Is_Data (Corresponding_Instance (C)) then
                        Visit (Corresponding_Instance (C));
                     end if;

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                     C := Next_Node (C);
                  end loop;

                  --  Protected type

                  S := First_Node (Features (E));

                  while Present (S) loop
                     --  Build a subprogram spec and append it to
                     --  the visible part of the protected type.

                     N := Feature_Spg_Body (S);
                     Append_Node_To_List
                       (N, CTN.Declarations (Current_File));

                     S := Next_Node (S);
                  end loop;

                  --  Mark the data type as being handled

                  Set_Handling (E, By_Name, H_C_Type_Body, N);

                  --  FIXME : Handle correctly data with accessor
                  --  marshalling.

               end;
            end if;
         end if;
      end Visit_Data_Instance;

      ----------------------------
      -- Visit_Process_Instance --
      ----------------------------

      procedure Visit_Process_Instance (E : Node_Id) is
         U : constant Node_Id := CTN.Distributed_Application_Unit
           (CTN.Naming_Node (Backend_Node (Identifier (E))));
         P : constant Node_Id := CTN.Entity (U);
         S : Node_Id;
         Declaration          : Node_Id;
      begin
         Push_Entity (P);
         Push_Entity (U);
         Set_Types_Source;

         Start_Recording_Handlings;

         --  Visit all the subcomponents of the process

         if not AINU.Is_Empty (Subcomponents (E)) then
            S := First_Node (Subcomponents (E));
            while Present (S) loop
               if Get_Current_Backend_Kind = PolyORB_Kernel_C and then
                  AINU.Is_Data (Corresponding_Instance (S)) and then
                  Is_Protected_Data (Corresponding_Instance (S)) then

                  Add_Include (PKR.RH (RH_Deployment));

                  if POK_Flavor = ARINC653 then
                     Declaration := Make_Variable_Declaration
                           (Make_Defining_Identifier
                              (Map_Associated_Locking_Entity_Name
                                 (S)),
                           PKR.RE (RE_Semaphore_Id_Type));
                  else
                     Declaration := Make_Variable_Declaration
                           (Make_Defining_Identifier
                              (Map_Associated_Locking_Entity_Name
                                 (S)),
                           PKR.RE (RE_Pok_Sem_Id_T));
                  end if;

                  Append_Node_To_List
                     (Declaration, CTN.Declarations (Current_File));
               else
                  Visit (Corresponding_Instance (S));
               end if;

               S := Next_Node (S);
            end loop;
         end if;

         --  Unmark all the marked types

         Reset_Handlings;

         Pop_Entity; -- U
         Pop_Entity; -- P
      end Visit_Process_Instance;

      -------------------------------
      -- Visit_Subprogram_Instance --
      -------------------------------

      procedure Visit_Subprogram_Instance (E : Node_Id) is
         F : Node_Id;
      begin
         --  Declare all necessary data types

         if not AINU.Is_Empty (Features (E)) then
            F := First_Node (Features (E));

            while Present (F) loop
               if Kind (F) = K_Port_Spec_Instance then
                  Display_Located_Error
                    (Loc (F),
                     "Port features in subprogram are not supported",
                     Fatal => True);
               end if;

               if Present (Corresponding_Instance (F)) then
                  Visit (Corresponding_Instance (F));
               end if;

               F := Next_Node (F);
            end loop;
         end if;
      end Visit_Subprogram_Instance;

      ---------------------------
      -- Visit_System_Instance --
      ---------------------------

      procedure Visit_System_Instance (E : Node_Id) is
         S : Node_Id;
      begin
         if Get_Current_Backend_Kind /= PolyORB_Kernel_C then
            Push_Entity (C_Root);
         end if;

         --  Visit all the subcomponents of the system

         if not AINU.Is_Empty (Subcomponents (E)) then
            S := First_Node (Subcomponents (E));
            while Present (S) loop
               --  Visit the component instance corresponding to the
               --  subcomponent S.
               if Get_Current_Backend_Kind = PolyORB_Kernel_C
                  and then Get_Category_Of_Component
                     (Corresponding_Instance (S)) = CC_Process then
                  null;
               else
                  Visit (Corresponding_Instance (S));
               end if;

               S := Next_Node (S);
            end loop;
         end if;

         if Get_Current_Backend_Kind = PolyORB_Kernel_C then
            Pop_Entity; --  C_Root
         end if;
      end Visit_System_Instance;

      ---------------------------
      -- Visit_Thread_Instance --
      ---------------------------

      procedure Visit_Thread_Instance (E : Node_Id) is
         Call_Seq : Node_Id;
         Spg_Call : Node_Id;
      begin
         --  Visit all the call sequences of the thread

         if not AINU.Is_Empty (Calls (E)) then
            Call_Seq := First_Node (Calls (E));

            while Present (Call_Seq) loop
               --  For each call sequence visit all the called
               --  subprograms.

               if not AINU.Is_Empty (Subprogram_Calls (Call_Seq)) then
                  Spg_Call := First_Node (Subprogram_Calls (Call_Seq));

                  while Present (Spg_Call) loop
                     Visit (Corresponding_Instance (Spg_Call));

                     Spg_Call := Next_Node (Spg_Call);
                  end loop;
               end if;

               Call_Seq := Next_Node (Call_Seq);
            end loop;
         end if;
      end Visit_Thread_Instance;

   end Source_File;

end Ocarina.Backends.C_Common.Types;