gcc/ada/osint-b.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                              O S I N T - B                               --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2001-2008, 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 Opt;      use Opt;
  27 with Targparm; use Targparm;
  28
  29 package body Osint.B is
  30
  31    -------------------------
  32    -- Close_Binder_Output --
  33    -------------------------
  34
  35    procedure Close_Binder_Output is
  36       Status : Boolean;
  37    begin
  38       Close (Output_FD, Status);
  39
  40       if not Status then
  41          Fail
  42            ("error while closing generated file "
  43             & Get_Name_String (Output_File_Name));
  44       end if;
  45
  46    end Close_Binder_Output;
  47
  48    --------------------------
  49    -- Create_Binder_Output --
  50    --------------------------
  51
  52    procedure Create_Binder_Output
  53      (Output_File_Name : String;
  54       Typ              : Character;
  55       Bfile            : out Name_Id)
  56    is
  57       File_Name : String_Ptr;
  58       Findex1   : Natural;
  59       Findex2   : Natural;
  60       Flength   : Natural;
  61
  62       Bind_File_Prefix_Len : Natural := 2;
  63       --  Length of binder file prefix (normally set to 2 for b~, but gets
  64       --  reset to 3 for VMS for b__).
  65
  66    begin
  67       if Output_File_Name /= "" then
  68          Name_Buffer (Output_File_Name'Range) := Output_File_Name;
  69          Name_Buffer (Output_File_Name'Last + 1) := ASCII.NUL;
  70
  71          if Typ = 's' then
  72             Name_Buffer (Output_File_Name'Last) := 's';
  73          end if;
  74
  75          Name_Len := Output_File_Name'Last;
  76
  77       else
  78          Name_Buffer (1) := 'b';
  79          File_Name := File_Names (Current_File_Name_Index);
  80
  81          Findex1 := File_Name'First;
  82
  83          --  The ali file might be specified by a full path name. However,
  84          --  the binder generated file should always be created in the
  85          --  current directory, so the path might need to be stripped away.
  86          --  In addition to the default directory_separator allow the '/' to
  87          --  act as separator since this is allowed in MS-DOS and OS2 ports.
  88
  89          for J in reverse File_Name'Range loop
  90             if File_Name (J) = Directory_Separator
  91               or else File_Name (J) = '/'
  92             then
  93                Findex1 := J + 1;
  94                exit;
  95             end if;
  96          end loop;
  97
  98          Findex2 := File_Name'Last;
  99          while File_Name (Findex2) /=  '.' loop
 100             Findex2 := Findex2 - 1;
 101          end loop;
 102
 103          Flength := Findex2 - Findex1;
 104
 105          if Maximum_File_Name_Length > 0 then
 106
 107             if OpenVMS_On_Target and then Typ /= 'c' then
 108                Bind_File_Prefix_Len := 3;
 109             end if;
 110
 111             --  Make room for the extra two characters in "b?"
 112
 113             while Int (Flength) >
 114               Maximum_File_Name_Length - Nat (Bind_File_Prefix_Len)
 115             loop
 116                Findex2 := Findex2 - 1;
 117                Flength := Findex2 - Findex1;
 118             end loop;
 119          end if;
 120
 121          Name_Buffer
 122            (Bind_File_Prefix_Len + 1 .. Flength + Bind_File_Prefix_Len) :=
 123               File_Name (Findex1 .. Findex2 - 1);
 124          Name_Buffer (Flength + Bind_File_Prefix_Len + 1) := '.';
 125
 126          --  C bind file, name is b_xxx.c
 127
 128          if Typ = 'c' then
 129             Name_Buffer (2) := '_';
 130             Name_Buffer (Flength + 4) := 'c';
 131             Name_Buffer (Flength + 5) := ASCII.NUL;
 132             Name_Len := Flength + 4;
 133
 134          --  Ada bind file, name is b~xxx.adb or b~xxx.ads
 135          --  (with __ instead of ~ in VMS)
 136
 137          else
 138             if OpenVMS_On_Target then
 139                Name_Buffer (2) := '_';
 140                Name_Buffer (3) := '_';
 141             else
 142                Name_Buffer (2) := '~';
 143             end if;
 144
 145             Name_Buffer (Flength + Bind_File_Prefix_Len + 2) := 'a';
 146             Name_Buffer (Flength + Bind_File_Prefix_Len + 3) := 'd';
 147             Name_Buffer (Flength + Bind_File_Prefix_Len + 4) := Typ;
 148             Name_Buffer (Flength + Bind_File_Prefix_Len + 5) := ASCII.NUL;
 149             Name_Len := Flength + Bind_File_Prefix_Len + 4;
 150          end if;
 151       end if;
 152
 153       Bfile := Name_Find;
 154
 155       Create_File_And_Check (Output_FD, Text);
 156    end Create_Binder_Output;
 157
 158    --------------------
 159    -- More_Lib_Files --
 160    --------------------
 161
 162    function More_Lib_Files return Boolean renames  More_Files;
 163
 164    ------------------------
 165    -- Next_Main_Lib_File --
 166    ------------------------
 167
 168    function Next_Main_Lib_File return File_Name_Type renames Next_Main_File;
 169
 170    ---------------------------------
 171    -- Set_Current_File_Name_Index --
 172    ---------------------------------
 173
 174    procedure Set_Current_File_Name_Index (To : Int) is
 175    begin
 176       Current_File_Name_Index := To;
 177    end Set_Current_File_Name_Index;
 178
 179    -----------------------
 180    -- Write_Binder_Info --
 181    -----------------------
 182
 183    procedure Write_Binder_Info (Info : String) renames Write_Info;
 184
 185 begin
 186    Set_Program (Binder);
 187 end Osint.B;