ocarina-backends-build_utils.adb 100 KB
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------------------------------------------------------------------------------
--                                                                          --
--                           OCARINA COMPONENTS                             --
--                                                                          --
--         O C A R I N A . B A C K E N D S . B U I L D _ U T I L S          --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
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--    Copyright (C) 2008-2009 Telecom ParisTech, 2010-2020 ESA & ISAE.      --
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--                                                                          --
-- Ocarina  is free software; you can redistribute it and/or modify under   --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion. 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.                     --
--                                                                          --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception,   --
-- version 3.1, as published by the Free Software Foundation.               --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
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--                                                                          --
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--                 Ocarina is maintained by the TASTE project               --
--                      (taste-users@lists.tuxfamily.org)                   --
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--                                                                          --
------------------------------------------------------------------------------

with Ada.Unchecked_Deallocation;

with GNAT.Directory_Operations;
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with GNAT.OS_Lib;
with GNAT.Table;
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with Ocarina.Namet;
with Ocarina.Output;
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with Utils; use Utils;
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with Ocarina.ME_AADL;
with Ocarina.ME_AADL.AADL_Instances.Nodes;
with Ocarina.ME_AADL.AADL_Instances.Nutils;
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with Ocarina.Options;  use Ocarina.Options;
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with Ocarina.ME_AADL.AADL_Instances.Entities;
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with Ocarina.Backends; use Ocarina.Backends;
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with Ocarina.Backends.Utils;
with Ocarina.Backends.Messages;
with Ocarina.Backends.Ada_Tree.Nutils;

package body Ocarina.Backends.Build_Utils is

   use GNAT.OS_Lib;
   use GNAT.Directory_Operations;
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   use Ocarina.Namet;
   use Ocarina.Output;
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   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.Messages;

   package AAU renames Ocarina.ME_AADL.AADL_Instances.Nutils;
   package ADU renames Ocarina.Backends.Ada_Tree.Nutils;

   procedure Split_Path
     (Filename  :     Name_Id;
      Directory :     Name_Id;
      Basename  : out Name_Id;
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      Dirname   : out Name_Id;
      Relative_Path : Boolean := False);
   --  Split the path made of Filename and Directory into Basename and
   --  Dirname (with regular shell interpretations)
   --
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   --  * If Relative_Path is true, and if Directory is not Ocarina
   --    install directory (case of runtime library elements), then we
   --    disregard Directory and assume the base directory to be "../.."
   --    relative to the generated code directory.
   --
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   --  * If Relative_Path is false, the full directory path is
   --    resolved and is absolute to the user environment.
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   function Resolve_Language (E : Node_Id) return Supported_Source_Language;
   --  Fetches the Source_Language property of E. If the property is
   --  not set, try to deduce the language from the current generator.

   generic
      --  This generic package is a generic list to store the "build
      --  utils" (makefiles, project files...). It provides accessor
      --  routines to allow a process node to find its corresponding
      --  "build util".

      type Build_Util is private;
      --  The type of "build util"

      Id : String;
      --  The Id of the generic table. It MUST be a unique string

      with procedure Free (T : in out Build_Util);
      --  For deallocation purpose

   package Generic_List is
      --  This package is a generic list to store the "build utils"
      --  (makefiles, project files...). It provides accessor routines
      --  to allow a process node to find its corresponding "build util".

      procedure Set (P : Node_Id; U : Build_Util);
      function Get (P : Node_Id) return Build_Util;

      procedure Free;
      --  Deallocates the table

      procedure Init;
      --  A call to this procedure is NECESSARY after any call to
      --  Free. It is not necessary before the first use of the table.

   end Generic_List;

   ------------
   -- Length --
   ------------

   function Length (T : Name_Tables.Instance) return Int is
   begin
      return Name_Tables.Last (T) - Name_Tables.First + 1;
   end Length;

   ----------------------
   -- Get_Runtime_Path --
   ----------------------

   function Get_Runtime_Path (Runtime_Name : String) return String is
   begin
      Get_Name_String (Installation_Directory);
      Add_Str_To_Name_Buffer ("include" & Directory_Separator);
      Add_Str_To_Name_Buffer ("ocarina" & Directory_Separator);
      Add_Str_To_Name_Buffer ("runtime" & Directory_Separator);
      Add_Str_To_Name_Buffer (Runtime_Name);

      declare
         Path : constant String := Get_Name_String (Name_Find);
      begin
         if not Is_Directory (Path) then
            Display_Error (Path & " is not a valid runtime directory", True);
         end if;
         return Path;
      end;
   end Get_Runtime_Path;

   ----------------
   -- Split_Path --
   ----------------

   procedure Split_Path
     (Filename  :     Name_Id;
      Directory :     Name_Id;
      Basename  : out Name_Id;
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      Dirname   : out Name_Id;
      Relative_Path : Boolean := False)
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   is
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      Temp_Dirname : Name_Id := No_Name;
      AADL_Library_File : Boolean := False;
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   begin
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      if Relative_Path then
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         Temp_Dirname := Get_String_Name
           (Normalize_Pathname (Get_Name_String (Directory)) & "/");
         if Temp_Dirname = Default_Library_Path then
            AADL_Library_File := True;
         end if;
      end if;

      if Relative_Path and then not
        AADL_Library_File
      then
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         Set_Str_To_Name_Buffer ("../..");

      elsif Directory = No_Name then
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         Set_Str_To_Name_Buffer (".");
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      else
         Get_Name_String (Directory);
      end if;
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      declare
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         Normalized_Dir : constant String :=
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           (if Relative_Path then
               Format_Pathname (Name_Buffer (1 .. Name_Len))
           else
               Normalize_Pathname (Name_Buffer (1 .. Name_Len)));

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         Resolved_Filename : constant String :=
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           (if Relative_Path then
               Format_Pathname (Normalized_Dir & "/"
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                                  & Get_Name_String (Filename))
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            else
               Normalize_Pathname (Get_Name_String (Filename),
                                   Normalized_Dir));
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      begin
         Dirname  := Get_String_Name (Dir_Name (Resolved_Filename));
         Basename := Get_String_Name (Base_Name (Resolved_Filename));
      end;
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   end Split_Path;

   ------------------
   -- Generic_List --
   ------------------

   package body Generic_List is

      package Internal_Table is new GNAT.Table (Build_Util, Nat, 1, 10, 10);
      --  The internal table

      function Get_Internal_Name (P : Node_Id) return Name_Id;
      --  For code factorization purpose

      -----------------------
      -- Get_Internal_Name --
      -----------------------

      function Get_Internal_Name (P : Node_Id) return Name_Id is
         pragma Assert (AAU.Is_Process (P));
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      begin
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         Set_Nat_To_Name_Buffer (Nat (P));
         Add_Str_To_Name_Buffer ('%' & Id & '%');
         return Name_Find;
      end Get_Internal_Name;

      ---------
      -- Set --
      ---------

      procedure Set (P : Node_Id; U : Build_Util) is
         I_Name : constant Name_Id := Get_Internal_Name (P);
      begin
         Internal_Table.Append (U);
         Set_Name_Table_Info (I_Name, Internal_Table.Last);
      end Set;

      ---------
      -- Get --
      ---------

      function Get (P : Node_Id) return Build_Util is
         I_Name : constant Name_Id := Get_Internal_Name (P);
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         Index  : constant Nat     := Get_Name_Table_Info (I_Name);
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      begin
         if Index = 0 then
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            raise Program_Error
              with "Try to get a build utils which has" & " not been set";
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         end if;

         return Internal_Table.Table (Index);
      end Get;

      ----------
      -- Init --
      ----------

      procedure Init is
      begin
         Internal_Table.Init;
      end Init;

      ----------
      -- Free --
      ----------

      procedure Free is
      begin
         for J in Internal_Table.First .. Internal_Table.Last loop
            Free (Internal_Table.Table (J));
         end loop;

         Internal_Table.Free;
         Internal_Table.Init;
      end Free;
   end Generic_List;

   ----------------------
   -- Resolve_Language --
   ----------------------

   function Resolve_Language (E : Node_Id) return Supported_Source_Language is
      Language : Supported_Source_Language := Get_Source_Language (E);
   begin
      --  If the user did not specify a language for E, we assume that
      --  the language is the current generator one.

      if Language = Language_None then
         case Get_Current_Backend_Kind is
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            when PolyORB_HI_Ada =>
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               Language := Language_Ada_95;

            when PolyORB_HI_C =>
               Language := Language_C;

            when others =>
               raise Program_Error;
         end case;
      end if;

      return Language;
   end Resolve_Language;

   ---------------
   -- Makefiles --
   ---------------

   package body Makefiles is

      procedure Visit_Architecture_Instance (E : Node_Id);
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      procedure Visit_Component_Instance (E : Node_Id);
      procedure Visit_System_Instance (E : Node_Id);
      procedure Visit_Process_Instance (E : Node_Id);
      procedure Visit_Thread_Instance (E : Node_Id);
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      procedure Visit_Subprogram_Instance
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        (E            : Node_Id;
         Force_Parent : Node_Id := No_Node);
      procedure Visit_Port_Instance (E : Node_Id);
      procedure Visit_Bus_Instance (E : Node_Id);
      procedure Visit_Virtual_Bus_Instance (E : Node_Id);
      procedure Visit_Data_Instance (E : Node_Id);
      procedure Visit_Abstract_Instance (E : Node_Id);
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      procedure Visit_Device_Instance (E : Node_Id);
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      procedure Visit_Subcomponents_Of is new Visit_Subcomponents_Of_G (Visit);
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      procedure Build_Architecture_Instance (E : Node_Id);
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      procedure Build_Component_Instance (E : Node_Id);
      procedure Build_System_Instance (E : Node_Id);
      procedure Build_Process_Instance (E : Node_Id);
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      procedure Clean_Architecture_Instance (E : Node_Id);
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      procedure Clean_Component_Instance (E : Node_Id);
      procedure Clean_System_Instance (E : Node_Id);
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      Current_Process : Node_Id := No_Node;

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      Appli_Name : Name_Id := No_Name;
      --  Denotes the application name, derived from the AADL root system name

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      type Makefile_Rec is record
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         Appli_Name : Name_Id;
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         --  The distributed application name

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         Node_Name : Name_Id;
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         --  The node name (in lower case)

         Execution_Platform : Supported_Execution_Platform := Platform_None;
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         Execution_Platform_Name : Name_Id                      := No_Name;
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         --  The execution platform of the processor the current node
         --  is bound to.

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         USER_CFLAGS             : Name_Id := No_Name;
         USER_LDFLAGS            : Name_Id := No_Name;

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         Transport_API : Supported_Transport_APIs;
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         --  The transport API used by the current node to
         --  communicate with other nodes.

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         C_Objs : Name_Tables.Instance;
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         Ada_Sources : Name_Tables.Instance;
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         Asn_Sources : Name_Tables.Instance;
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         C_Sources : Name_Tables.Instance;
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         --  The C source files that may implement some subprograms of
         --  the current node (absolute or relative path).

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         CPP_Sources : Name_Tables.Instance;
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         --  The C source files that may implement some subprograms of
         --  the current node (absolute or relative path).

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         C_Libraries : Name_Tables.Instance;
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         --  The C libraries that may contain the binary code of some
         --  subprograms of the current node (absolute or relative
         --  path).

         User_Source_Dirs : Name_Tables.Instance;
         --  Directories of the source files provided by the user

         Use_Transport : Boolean;
         --  Use_Transport is used to know if the node has in or out
         --  port If it uses transport, the C Makefiles will contain
         --  something like NEED_TRANSPORT = [yes|no]. It is used to
         --  know if the files that handle transport in PolyORB-HI-C
         --  should be compiled or not.

         Simulink_Directory : Name_Id;
         --  The Simulink_Directory corresponds to the directory
         --  that contains the simulink application code.

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         Simulink_Node : Name_Id;
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         --  The Simulink_Node is the name of the node we try to
         --  integrate in our AADL model.

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         Use_Simulink : Boolean;
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         --  Use_Simulink states if we integrate simulink application
         --  code or not.

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         Scade_Directory : Name_Id;
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         --  The Scade_Directory is the name of the directory that contains
         --  Scade source code.

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         Use_Scade : Boolean;
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         --  The Use_Scade variable tells the build-system if we try
         --  to integrate SCADE application code in our generated
         --  system.

      end record;
      --  This structure gathers all the information needed to
      --  generate a makefile for a given node of the distributed
      --  application.

      type Makefile_Type is access all Makefile_Rec;

      procedure Free (M : in out Makefile_Type);
      --  Deallocates the internals of T

      procedure Ada_C_Command_Line_Flags
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        (Ada_Sources : Name_Tables.Instance;
         C_Sources   : Name_Tables.Instance;
         CPP_Sources : Name_Tables.Instance;
         C_Libraries : Name_Tables.Instance);
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      procedure Compile_Ada_Files (Ada_Sources : Name_Tables.Instance);
      procedure Compile_C_Files (C_Sources : Name_Tables.Instance);
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      procedure Compile_CPP_Files (CPP_Sources : Name_Tables.Instance);
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      --  Generate a makefile target to compile C_Sources C files

      procedure Handle_C_Source
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        (E                 : Node_Id;
         Implem_Name       : Name_Id;
         Source_Files      : Name_Array;
         M                 : Makefile_Type;
         Custom_Source_Dir : Name_Id := No_Name);
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      --  Update the makefile structure by adding necessary paths to
      --  sources or libraries provided by the 'Source_Files' array. E
      --  is the node for which the source files are given, it is used
      --  to resolve relative paths through its absolute location.

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      procedure Handle_CPP_Source
        (E                 : Node_Id;
         Implem_Name       : Name_Id;
         Source_Files      : Name_Array;
         M                 : Makefile_Type;
         Custom_Source_Dir : Name_Id := No_Name);
      --  Update the makefile structure by adding necessary paths to
      --  sources or libraries provided by the 'Source_Files' array. E
      --  is the node for which the source files are given, it is used
      --  to resolve relative paths through its absolute location.

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      procedure Handle_Ada_Source
        (E            : Node_Id;
         Implem_Name  : Name_Id;
         Source_Files : Name_Array;
         M            : Makefile_Type);
      --  Update the makefile structure by adding necessary paths to
      --  sources or libraries provided by the 'Source_Files' array. E
      --  is the node for which the source files are given, it is used
      --  to resolve relative paths through its absolute location.

      ----------
      -- Free --
      ----------

      procedure Free (M : in out Makefile_Type) is
         procedure Deallocate is new Ada.Unchecked_Deallocation
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           (Makefile_Rec,
            Makefile_Type);
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      begin
         Name_Tables.Free (M.all.Ada_Sources);
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         Name_Tables.Free (M.all.Asn_Sources);
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         Name_Tables.Free (M.all.C_Objs);
         Name_Tables.Free (M.all.C_Sources);
         Name_Tables.Free (M.all.C_Libraries);
         Name_Tables.Free (M.all.User_Source_Dirs);

         Deallocate (M);
      end Free;

      package Makefiles is new Generic_List
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        (Makefile_Type,
         "Makefile_List",
         Free);
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      --  The list of all the makefile structures

      -----------
      -- Reset --
      -----------

      procedure Reset is
      begin
         Makefiles.Free;
      end Reset;

      -----------------------
      -- Handle_Ada_Source --
      -----------------------

      procedure Handle_Ada_Source
        (E            : Node_Id;
         Implem_Name  : Name_Id;
         Source_Files : Name_Array;
         M            : Makefile_Type)
      is
         Source_Basename : Name_Id;
         Source_Dirname  : Name_Id;
         S_Name          : Name_Id;

      begin
         --  Ensure the user gives at most one source file (.adb)

         if Source_Files'Length > 2 then
            Display_Located_Error
              (Loc (E),
               "cannot have more than two source files for an Ada subprogram",
               Fatal => True);

         elsif Source_Files'Length /= 0 and then Implem_Name /= No_Name then
            for J in Source_Files'Range loop
               --  Ensure the source is added only once per node

               Get_Name_String (Source_Files (J));
               Get_Name_String_And_Append (M.Node_Name);
               Add_Str_To_Name_Buffer ("%source_text%");
               S_Name := Name_Find;

               if Get_Name_Table_Info (S_Name) = 0 then
                  Set_Name_Table_Info (S_Name, 1);

                  Get_Name_String (Source_Files (J));

                  Split_Path
                    (Source_Files (J),
                     Loc (E).Dir_Name,
                     Source_Basename,
                     Source_Dirname);

                  Get_Name_String (Source_Basename);

                  if Name_Buffer (Name_Len - 3 .. Name_Len) = ".adb" then
                     Get_Name_String (Source_Dirname);
                     Get_Name_String_And_Append (Source_Basename);

                     Name_Tables.Append (M.Ada_Sources, Name_Find);
                  end if;
               end if;
            end loop;
         end if;
      end Handle_Ada_Source;

      ---------------------
      -- Handle_C_Source --
      ---------------------

      procedure Handle_C_Source
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        (E                 : Node_Id;
         Implem_Name       : Name_Id;
         Source_Files      : Name_Array;
         M                 : Makefile_Type;
         Custom_Source_Dir : Name_Id := No_Name)
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      is
         Source_Basename : Name_Id;
         Source_Dirname  : Name_Id;
         S_Name          : Name_Id;
         Binding_Key     : constant String := "%user_src_dir%";
      begin
         --  Ensure the user gives at most one source file (.c)

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         if Source_Files'Length > 1
           and then Get_Current_Backend_Kind = PolyORB_HI_Ada
         then
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            Display_Located_Error
              (Loc (E),
               "more than one source files for a C subprogram",
               Fatal => True);
         end if;

         if Source_Files'Length = 0 and then Implem_Name /= No_Name then
            --  This means that the user did not provide source file
            --  names for the C implementation but did provide the
            --  implementation name. Therefore, the corresponding
            --  source files have conventional names and are located
            --  at the same directory as the AADL file.

            Split_Path
              (Implem_Name,
               Loc (E).Dir_Name,
               Source_Basename,
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               Source_Dirname,
               Relative_Path => True);
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            if Custom_Source_Dir /= No_Name then
               Source_Dirname := Custom_Source_Dir;
            end if;

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            Set_Str_To_Name_Buffer (Binding_Key);
            Get_Name_String_And_Append (Source_Dirname);
            Get_Name_String_And_Append (M.Node_Name);

            if Get_Name_Table_Byte (Name_Find) = 0 then
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               Name_Tables.Append (M.User_Source_Dirs, Source_Dirname);
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               Set_Name_Table_Byte (Name_Find, 1);
            end if;

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         elsif Source_Files'Length /= 0 then
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            for J in Source_Files'Range loop
               --  Ensure the source is added only once per node

               Get_Name_String (Source_Files (J));
               Get_Name_String_And_Append (M.Node_Name);
               Add_Str_To_Name_Buffer ("%source_text%");
               S_Name := Name_Find;

               if Get_Name_Table_Info (S_Name) = 0 then
                  Set_Name_Table_Info (S_Name, 1);

                  Get_Name_String (Source_Files (J));

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                  --  The path to the source file is deduced from the
                  --  path of the AADL entity definition

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                  Split_Path
                    (Source_Files (J),
                     Loc (E).Dir_Name,
                     Source_Basename,
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                     Source_Dirname,
                     Relative_Path => True);
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                  --  If the directory points to the default AADL
                  --  property set directory (case of PolyORB-HI/C
                  --  provided driver), then we adjust the path to
                  --  point to the corresponding default installation
                  --  directory: PolyORB-HI/C runtime directory.

                  if Source_Dirname = Default_Library_Path then
                     Source_Dirname := Get_String_Name
                       (Get_Runtime_Path ("polyorb-hi-c"));
                     Source_Dirname :=
                       Add_Directory_Separator (Source_Dirname);
                     Get_Name_String (Source_Dirname);
                     Add_Str_To_Name_Buffer ("src/");
                     Source_Dirname := Name_Find;
                  end if;

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                  if Custom_Source_Dir /= No_Name then
                     Source_Dirname := Custom_Source_Dir;
                  end if;

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                  Get_Name_String (Source_Basename);

                  if Name_Buffer (Name_Len - 1 .. Name_Len) = ".o"
                    or else Name_Buffer (Name_Len - 1 .. Name_Len) = ".a"
                  then
                     --  Library names MUST begin with "lib"

                     if Name_Buffer (Name_Len - 1 .. Name_Len) = ".a"
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                       and then
                       (Name_Len <= 5 or else Name_Buffer (1 .. 3) /= "lib")
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                     then
                        Display_Error
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                          ("Invalid library name" &
                           Name_Buffer (1 .. Name_Len),
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                           Fatal => True);
                     end if;

                     Get_Name_String (Source_Dirname);
                     Get_Name_String_And_Append (Source_Basename);

                     Name_Tables.Append (M.C_Libraries, Name_Find);

                  elsif Name_Buffer (Name_Len - 1 .. Name_Len) = ".c" then
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                     if Source_Dirname /= Get_String_Name ("./") then
                        Get_Name_String (Source_Dirname);
                        Get_Name_String_And_Append (Source_Basename);
                     else
                        Get_Name_String (Source_Basename);
                     end if;
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                     Name_Tables.Append (M.C_Sources, Name_Find);

                     Set_Str_To_Name_Buffer (Binding_Key);
                     Get_Name_String (Source_Dirname);
                     Get_Name_String_And_Append (M.Node_Name);

                     if Get_Name_Table_Byte (Name_Find) = 0 then
                        Name_Tables.Append
                          (M.User_Source_Dirs,
                           Source_Dirname);
                        Set_Name_Table_Byte (Name_Find, 1);
                     end if;
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                  else
                     Set_Str_To_Name_Buffer (Binding_Key);
                     Get_Name_String (Source_Dirname);
                     Get_Name_String_And_Append (M.Node_Name);

                     if Get_Name_Table_Byte (Name_Find) = 0 then
                        Name_Tables.Append
                          (M.User_Source_Dirs,
                           Source_Dirname);
                        Set_Name_Table_Byte (Name_Find, 1);
                     end if;
                  end if;
               end if;
            end loop;
         end if;
      end Handle_C_Source;

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      -----------------------
      -- Handle_CPP_Source --
      -----------------------

      procedure Handle_CPP_Source
        (E                 : Node_Id;
         Implem_Name       : Name_Id;
         Source_Files      : Name_Array;
         M                 : Makefile_Type;
         Custom_Source_Dir : Name_Id := No_Name)
      is
         Source_Basename : Name_Id;
         Source_Dirname  : Name_Id;
         S_Name          : Name_Id;
         Binding_Key     : constant String := "%user_src_dir%";
      begin
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         --  Ensure the user gives at most one source file (.cc or .cpp)
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         if Source_Files'Length > 1
           and then Get_Current_Backend_Kind = PolyORB_HI_Ada
         then
            Display_Located_Error
              (Loc (E),
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               "more than one source files for a C++ subprogram",
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               Fatal => True);
         end if;

         if Source_Files'Length = 0 and then Implem_Name /= No_Name then
            --  This means that the user did not provide source file
            --  names for the C implementation but did provide the
            --  implementation name. Therefore, the corresponding
            --  source files have conventional names and are located
            --  at the same directory as the AADL file.

            Split_Path
              (Implem_Name,
               Loc (E).Dir_Name,
               Source_Basename,
               Source_Dirname);

            if Custom_Source_Dir /= No_Name then
               Source_Dirname := Custom_Source_Dir;
            end if;

            Set_Str_To_Name_Buffer (Binding_Key);
            Get_Name_String_And_Append (Source_Dirname);
            Get_Name_String_And_Append (M.Node_Name);

            if Get_Name_Table_Byte (Name_Find) = 0 then
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               Name_Tables.Append (M.User_Source_Dirs, Source_Dirname);
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               Set_Name_Table_Byte (Name_Find, 1);
            end if;

         elsif Source_Files'Length /= 0 then
            for J in Source_Files'Range loop
               --  Ensure the source is added only once per node

               Get_Name_String (Source_Files (J));
               Get_Name_String_And_Append (M.Node_Name);
               Add_Str_To_Name_Buffer ("%source_text%");
               S_Name := Name_Find;

               if Get_Name_Table_Info (S_Name) = 0 then
                  Set_Name_Table_Info (S_Name, 1);

                  Get_Name_String (Source_Files (J));
                  Split_Path
                    (Source_Files (J),
                     Loc (E).Dir_Name,
                     Source_Basename,
                     Source_Dirname);

                  if Custom_Source_Dir /= No_Name then
                     Source_Dirname := Custom_Source_Dir;
                  end if;

                  Get_Name_String (Source_Basename);

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                  if Name_Buffer (Name_Len - 2 .. Name_Len) = ".cc"
                    or else Name_Buffer (Name_Len - 3 .. Name_Len) = ".cpp"
                  then
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                     Get_Name_String (Source_Dirname);
                     Get_Name_String_And_Append (Source_Basename);

                     Name_Tables.Append (M.CPP_Sources, Name_Find);

                     Set_Str_To_Name_Buffer (Binding_Key);
                     Get_Name_String (Source_Dirname);
                     Get_Name_String_And_Append (M.Node_Name);

                     if Get_Name_Table_Byte (Name_Find) = 0 then
                        Name_Tables.Append
                          (M.User_Source_Dirs,
                           Source_Dirname);
                        Set_Name_Table_Byte (Name_Find, 1);
                     end if;

                  else
                     Set_Str_To_Name_Buffer (Binding_Key);
                     Get_Name_String (Source_Dirname);
                     Get_Name_String_And_Append (M.Node_Name);

                     if Get_Name_Table_Byte (Name_Find) = 0 then
                        Name_Tables.Append
                          (M.User_Source_Dirs,
                           Source_Dirname);
                        Set_Name_Table_Byte (Name_Find, 1);
                     end if;
                  end if;
               end if;
            end loop;
         end if;
      end Handle_CPP_Source;

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

      procedure Visit (E : Node_Id) is
      begin
         case Kind (E) is
            when K_Architecture_Instance =>
               Visit_Architecture_Instance (E);

            when K_Component_Instance =>
               Visit_Component_Instance (E);

            when K_Port_Spec_Instance =>
               Visit_Port_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
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         Category : constant Component_Category :=
           Get_Category_Of_Component (E);
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      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);

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            when CC_Bus =>
               Visit_Bus_Instance (E);

            when CC_Virtual_Bus =>
               Visit_Virtual_Bus_Instance (E);

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            when CC_Device =>
               Visit_Device_Instance (E);

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            when CC_Data =>
               Visit_Data_Instance (E);

            when CC_Abstract =>
               Visit_Abstract_Instance (E);

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            when CC_Subprogram =>
               Visit_Subprogram_Instance (E);

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

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      ------------------------
      -- Visit_Bus_Instance --
      ------------------------

      procedure Visit_Bus_Instance (E : Node_Id) is
      begin
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         Visit_Subcomponents_Of (E);
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      end Visit_Bus_Instance;

      -----------------------------
      -- Visit_Abstract_Instance --
      -----------------------------

      procedure Visit_Abstract_Instance (E : Node_Id) is
         SC       : Node_Id;
         Instance : Node_Id;
      begin
         if not AAU.Is_Empty (Subcomponents (E)) then
            SC := First_Node (Subcomponents (E));

            while Present (SC) loop
               --  Visit the corresponding instance of SC
               Instance := Corresponding_Instance (SC);
               if (Get_Category_Of_Component (Instance) = CC_Subprogram) then
                  Visit_Subprogram_Instance (Instance, Current_Process);
               else
                  Visit (Instance);
               end if;

               SC := Next_Node (SC);
            end loop;
         end if;
      end Visit_Abstract_Instance;

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

      procedure Visit_Data_Instance (E : Node_Id) is
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         Source  : Name_Id;
         Sources : constant Name_Array    := Get_Source_Text (E);
         M       : constant Makefile_Type := Makefiles.Get (Current_Process);
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      begin
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         if Get_Source_Language (E) = Language_ASN1
           and then Sources'Length /= 0
         then
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            Source := Sources (1);
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            Name_Tables.Append (M.Asn_Sources, Source);
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         end if;
      end Visit_Data_Instance;

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

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

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         Visit_Subcomponents_Of (E);
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      end Visit_Device_Instance;

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      --------------------------------
      -- Visit_Virtual_Bus_Instance --
      --------------------------------

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

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         Visit_Subcomponents_Of (E);
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      end Visit_Virtual_Bus_Instance;

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

      procedure Visit_Process_Instance (E : Node_Id) is
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         C              : Node_Id;
         S              : constant Node_Id       := Parent_Subcomponent (E);
         M              : constant Makefile_Type := new Makefile_Rec;
         SC             : Node_Id;
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         Current_Device : Node_Id;
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         Feature        : Node_Id;
         Parent         : Node_Id;
         Src            : Node_Id;
         Dst            : Node_Id;
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         The_System     : constant Node_Id       :=
           Parent_Component (Parent_Subcomponent (E));
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      begin
         --  Associates the Makefile structure to the process
         --  instance. Keep in mind that it is important to use
         --  accesses here because all the visited threads and
         --  subprgrams will fetch this access to update the
         --  corresponding structure.

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