gcc/ada/makeutl.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                              M A K E U T L                               --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2004-2010, Free Software Foundation, Inc.         --
  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 3,  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 COPYING3.  If not, go to --
  19 -- http://www.gnu.org/licenses for a complete copy of the license.          --
  20 --                                                                          --
  21 -- GNAT was originally developed  by the GNAT team at  New York University. --
  22 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  23 --                                                                          --
  24 ------------------------------------------------------------------------------
  25
  26 with ALI;
  27 with Namet; use Namet;
  28 with Opt;
  29 with Osint;
  30 with Prj;   use Prj;
  31 with Prj.Tree;
  32 with Types; use Types;
  33
  34 with GNAT.OS_Lib; use GNAT.OS_Lib;
  35
  36 package Makeutl is
  37
  38    type Fail_Proc is access procedure (S : String);
  39    Do_Fail : Fail_Proc := Osint.Fail'Access;
  40    --  Failing procedure called from procedure Test_If_Relative_Path below. May
  41    --  be redirected.
  42
  43    Project_Tree : constant Project_Tree_Ref := new Project_Tree_Data;
  44    --  The project tree
  45
  46    Subdirs_Option : constant String := "--subdirs=";
  47    --  Switch used to indicate that the real directories (object, exec,
  48    --  library, ...) are subdirectories of those in the project file.
  49
  50    Unchecked_Shared_Lib_Imports : constant String :=
  51                                     "--unchecked-shared-lib-imports";
  52    --  Command line switch to allow shared library projects to import projects
  53    --  that are not shared library projects.
  54
  55    Single_Compile_Per_Obj_Dir_Switch : constant String :=
  56                                          "--single-compile-per-obj-dir";
  57    --  Switch to forbid simultaneous compilations for the same object directory
  58    --  when project files are used.
  59
  60    Create_Map_File_Switch : constant String := "--create-map-file";
  61    --  Switch to create a map file when an executable is linked
  62
  63    procedure Add
  64      (Option : String_Access;
  65       To     : in out String_List_Access;
  66       Last   : in out Natural);
  67    procedure Add
  68      (Option : String;
  69       To     : in out String_List_Access;
  70       Last   : in out Natural);
  71    --  Add a string to a list of strings
  72
  73    function Create_Binder_Mapping_File return Path_Name_Type;
  74    --  Create a binder mapping file and returns its path name
  75
  76    function Create_Name (Name : String) return File_Name_Type;
  77    function Create_Name (Name : String) return Name_Id;
  78    function Create_Name (Name : String) return Path_Name_Type;
  79    --  Get an id for a name
  80
  81    function Base_Name_Index_For
  82      (Main            : String;
  83       Main_Index      : Int;
  84       Index_Separator : Character) return File_Name_Type;
  85    --  Returns the base name of Main, without the extension, followed by the
  86    --  Index_Separator followed by the Main_Index if it is non-zero.
  87
  88    function Executable_Prefix_Path return String;
  89    --  Return the absolute path parent directory of the directory where the
  90    --  current executable resides, if its directory is named "bin", otherwise
  91    --  return an empty string. When a directory is returned, it is guaranteed
  92    --  to end with a directory separator.
  93
  94    procedure Inform (N : Name_Id := No_Name; Msg : String);
  95    procedure Inform (N : File_Name_Type; Msg : String);
  96    --  Prints out the program name followed by a colon, N and S
  97
  98    function File_Not_A_Source_Of
  99      (Uname : Name_Id;
 100       Sfile : File_Name_Type) return Boolean;
 101    --  Check that file name Sfile is one of the source of unit Uname. Returns
 102    --  True if the unit is in one of the project file, but the file name is not
 103    --  one of its source. Returns False otherwise.
 104
 105    function Check_Source_Info_In_ALI (The_ALI : ALI.ALI_Id) return Boolean;
 106    --  Check whether all file references in ALI are still valid (i.e. the
 107    --  source files are still associated with the same units). Return True
 108    --  if everything is still valid.
 109
 110    function Is_External_Assignment
 111      (Tree : Prj.Tree.Project_Node_Tree_Ref;
 112       Argv : String) return Boolean;
 113    --  Verify that an external assignment switch is syntactically correct
 114    --
 115    --  Correct forms are:
 116    --
 117    --      -Xname=value
 118    --      -X"name=other value"
 119    --
 120    --  Assumptions: 'First = 1, Argv (1 .. 2) = "-X"
 121    --
 122    --  When this function returns True, the external assignment has been
 123    --  entered by a call to Prj.Ext.Add, so that in a project file, External
 124    --  ("name") will return "value".
 125
 126    procedure Verbose_Msg
 127      (N1                : Name_Id;
 128       S1                : String;
 129       N2                : Name_Id := No_Name;
 130       S2                : String  := "";
 131       Prefix            : String  := "  -> ";
 132       Minimum_Verbosity : Opt.Verbosity_Level_Type := Opt.Low);
 133    procedure Verbose_Msg
 134      (N1                : File_Name_Type;
 135       S1                : String;
 136       N2                : File_Name_Type := No_File;
 137       S2                : String  := "";
 138       Prefix            : String  := "  -> ";
 139       Minimum_Verbosity : Opt.Verbosity_Level_Type := Opt.Low);
 140    --  If the verbose flag (Verbose_Mode) is set and the verbosity level is at
 141    --  least equal to Minimum_Verbosity, then print Prefix to standard output
 142    --  followed by N1 and S1. If N2 /= No_Name then N2 is printed after S1. S2
 143    --  is printed last. Both N1 and N2 are printed in quotation marks. The two
 144    --  forms differ only in taking Name_Id or File_name_Type arguments.
 145
 146    function Linker_Options_Switches
 147      (Project  : Project_Id;
 148       In_Tree  : Project_Tree_Ref) return String_List;
 149    --  Collect the options specified in the Linker'Linker_Options attributes
 150    --  of project Project, in project tree In_Tree, and in the projects that
 151    --  it imports directly or indirectly, and returns the result.
 152
 153    --  Package Mains is used to store the mains specified on the command line
 154    --  and to retrieve them when a project file is used, to verify that the
 155    --  files exist and that they belong to a project file.
 156
 157    function Unit_Index_Of (ALI_File : File_Name_Type) return Int;
 158    --  Find the index of a unit in a source file. Return zero if the file is
 159    --  not a multi-unit source file.
 160
 161    procedure Test_If_Relative_Path
 162      (Switch               : in out String_Access;
 163       Parent               : String;
 164       Including_L_Switch   : Boolean := True;
 165       Including_Non_Switch : Boolean := True;
 166       Including_RTS        : Boolean := False);
 167    --  Test if Switch is a relative search path switch. If it is, fail if
 168    --  Parent is the empty string, otherwise prepend the path with Parent.
 169    --  This subprogram is only called when using project files. For gnatbind
 170    --  switches, Including_L_Switch is False, because the argument of the -L
 171    --  switch is not a path. If Including_RTS is True, process also switches
 172    --  --RTS=.
 173
 174    function Path_Or_File_Name (Path : Path_Name_Type) return String;
 175    --  Returns a file name if -df is used, otherwise return a path name
 176
 177    -----------
 178    -- Mains --
 179    -----------
 180
 181    --  Mains are stored in a table. An index is used to retrieve the mains
 182    --  from the table.
 183
 184    package Mains is
 185
 186       procedure Add_Main (Name : String);
 187       --  Add one main to the table
 188
 189       procedure Set_Index (Index : Int);
 190
 191       procedure Set_Location (Location : Source_Ptr);
 192       --  Set the location of the last main added. By default, the location is
 193       --  No_Location.
 194
 195       procedure Delete;
 196       --  Empty the table
 197
 198       procedure Reset;
 199       --  Reset the index to the beginning of the table
 200
 201       function Next_Main return String;
 202       --  Increase the index and return the next main. If table is exhausted,
 203       --  return an empty string.
 204
 205       function Get_Index return Int;
 206
 207       function Get_Location return Source_Ptr;
 208       --  Get the location of the current main
 209
 210       procedure Update_Main (Name : String);
 211       --  Update the file name of the current main
 212
 213       function Number_Of_Mains return Natural;
 214       --  Returns the number of mains added with Add_Main since the last call
 215       --  to Delete.
 216
 217    end Mains;
 218
 219    ----------------------
 220    -- Marking Routines --
 221    ----------------------
 222
 223    procedure Mark (Source_File : File_Name_Type; Index : Int := 0);
 224    --  Mark a unit, identified by its source file and, when Index is not 0, the
 225    --  index of the unit in the source file. Marking is used to signal that the
 226    --  unit has already been inserted in the Q.
 227
 228    function Is_Marked
 229      (Source_File : File_Name_Type;
 230       Index       : Int := 0) return Boolean;
 231    --  Returns True if the unit was previously marked
 232
 233    procedure Delete_All_Marks;
 234    --  Remove all file/index couples marked
 235
 236 end Makeutl;