gcc/ada/mlib-tgt.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             M L I B . T G T                              --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --                     Copyright (C) 2001-2005, AdaCore                     --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 --  This package provides a set of target dependent routines to build
  28 --  static, dynamic and shared libraries.
  29
  30 --  There are several versions for the body of this package
  31
  32 --  In the default version, libraries are not supported, so function
  33 --  Support_For_Libraries return None.
  34
  35 with Prj;         use Prj;
  36
  37 package MLib.Tgt is
  38
  39    type Library_Support is (None, Static_Only, Full);
  40    --  Support for Library Project File.
  41    --  - None: Library Project Files are not supported at all
  42    --  - Static_Only: Library Project Files are only supported for static
  43    --    libraries.
  44    --  - Full: Library Project Files are supported for static and dynamic
  45    --    (shared) libraries.
  46
  47    function Support_For_Libraries return Library_Support;
  48    --  Indicates how building libraries by gnatmake is supported by the GNAT
  49    --  implementation for the platform.
  50
  51    function Standalone_Library_Auto_Init_Is_Supported return Boolean;
  52    --  Indicates if when building a dynamic Standalone Library,
  53    --  automatic initialization is supported. If it is, then it is the default,
  54    --  unless attribute Library_Auto_Init has the value "false".
  55
  56    function Archive_Builder return String;
  57    --  Returns the name of the archive builder program, usually "ar"
  58
  59    function Archive_Builder_Options return String_List_Access;
  60    --  A list of options to invoke the Archive_Builder, usually "cr" for "ar"
  61
  62    function Archive_Indexer return String;
  63    --  Returns the name of the program, if any, that generates an index to the
  64    --  contents of an archive, usually "ranlib". If there is no archive indexer
  65    --  to be used, returns an empty string.
  66
  67    function Archive_Indexer_Options return String_List_Access;
  68    --  A list of options to invoke the Archive_Indexer, usually empty
  69
  70    function Dynamic_Option return String;
  71    --  gcc option to create a dynamic library.
  72    --  For Unix, returns "-shared", for Windows returns "-mdll".
  73
  74    function Libgnat return String;
  75    --  System dependent static GNAT library
  76
  77    function Archive_Ext return  String;
  78    --  System dependent static library extension, without leading dot.
  79    --  For Unix and Windows, return "a".
  80
  81    function Object_Ext return String;
  82    --  System dependent object extension, without leadien dot.
  83    --  On Unix, returns "o".
  84
  85    function DLL_Prefix return String;
  86    --  System dependent dynamic library prefix.
  87    --  On Windows, returns "". On other platforms, returns "lib".
  88
  89    function DLL_Ext return String;
  90    --  System dependent dynamic library extension, without leading dot.
  91    --  On Windows, returns "dll". On Unix, usually returns "so", but not
  92    --  always, e.g. on HP-UX the extension for shared libraries is "sl".
  93
  94    function PIC_Option return String;
  95    --  Position independent code option
  96
  97    function Is_Object_Ext (Ext : String) return Boolean;
  98    --  Returns True iff Ext is an object file extension
  99
 100    function Is_C_Ext (Ext : String) return Boolean;
 101    --  Returns True iff Ext is a C file extension
 102
 103    function Is_Archive_Ext (Ext : String) return Boolean;
 104    --  Returns True iff Ext is an extension for a library
 105
 106    procedure Build_Dynamic_Library
 107      (Ofiles       : Argument_List;
 108       Foreign      : Argument_List;
 109       Afiles       : Argument_List;
 110       Options      : Argument_List;
 111       Options_2    : Argument_List;
 112       Interfaces   : Argument_List;
 113       Lib_Filename : String;
 114       Lib_Dir      : String;
 115       Symbol_Data  : Symbol_Record;
 116       Driver_Name  : Name_Id := No_Name;
 117       Lib_Version  : String  := "";
 118       Auto_Init    : Boolean := False);
 119    --  Build a dynamic/relocatable library
 120    --
 121    --  Ofiles is the list of all object files in the library
 122    --
 123    --  Foreign is the list of non Ada object files (also included in Ofiles)
 124    --
 125    --  Afiles is the list of ALI files for the Ada object files
 126    --
 127    --  Options and Options_2 are lists of options to be passed to the tool
 128    --  (gcc or other) that effectively builds the dynamic library. Options
 129    --  are passed before the object files, Options_2 are passed after the
 130    --  object files.
 131    --
 132    --  Interfaces is the list of ALI files for the interfaces of a SAL.
 133    --  It is empty if the library is not a SAL.
 134    --
 135    --  Lib_Filename is the name of the library, without any prefix or
 136    --  extension. For example, on Unix, if Lib_Filename is "toto", the
 137    --  name of the library file will be "libtoto.so".
 138    --
 139    --  Lib_Dir is the directory path where the library will be located
 140    --
 141    --  For OSes that support symbolic links, Lib_Version, if non null,
 142    --  is the actual file name of the library. For example on Unix, if
 143    --  Lib_Filename is "toto" and Lib_Version is "libtoto.so.2.1",
 144    --  "libtoto.so" will be a symbolic link to "libtoto.so.2.1" which
 145    --  will be the actual library file.
 146    --
 147    --  Symbol_Data is used for some patforms, including VMS, to generate
 148    --  the symbols to be exported by the library.
 149    --
 150    --  Note: Depending on the OS, some of the parameters may not be taken
 151    --  into account. For example, on Linux, Foreign, Afiles Lib_Address and
 152    --  Relocatable are ignored.
 153
 154    function Library_Exists_For
 155      (Project : Project_Id; In_Tree : Project_Tree_Ref) return Boolean;
 156    --  Return True if the library file for a library project already exists.
 157    --  This function can only be called for library projects.
 158
 159    function Library_File_Name_For
 160      (Project : Project_Id;
 161       In_Tree : Project_Tree_Ref) return Name_Id;
 162    --  Returns the file name of the library file of a library project.
 163    --  This function can only be called for library projects.
 164
 165 end MLib.Tgt;