gcc/ada/s-crtl.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                        GNAT RUN-TIME COMPONENTS                          --
   4 --                                                                          --
   5 --                          S Y S T E M . C R T L                           --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2003-2009, 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.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 --  This package provides the low level interface to the C Run Time Library
  33 --  on non-VMS systems.
  34
  35 with System.Parameters;
  36
  37 package System.CRTL is
  38    pragma Preelaborate;
  39
  40    subtype chars is System.Address;
  41    --  Pointer to null-terminated array of characters
  42
  43    subtype DIRs is System.Address;
  44    --  Corresponds to the C type DIR*
  45
  46    subtype FILEs is System.Address;
  47    --  Corresponds to the C type FILE*
  48
  49    subtype int is Integer;
  50
  51    type long is range -(2 ** (System.Parameters.long_bits - 1))
  52       .. +(2 ** (System.Parameters.long_bits - 1)) - 1;
  53
  54    subtype off_t is Long_Integer;
  55
  56    type size_t is mod 2 ** Standard'Address_Size;
  57
  58    type Filename_Encoding is (UTF8, ASCII_8bits, Unspecified);
  59    for Filename_Encoding use (UTF8 => 0, ASCII_8bits => 1, Unspecified => 2);
  60    pragma Convention (C, Filename_Encoding);
  61    --  Describes the filename's encoding
  62
  63    function atoi (A : System.Address) return Integer;
  64    pragma Import (C, atoi, "atoi");
  65
  66    procedure clearerr (stream : FILEs);
  67    pragma Import (C, clearerr, "clearerr");
  68
  69    function dup  (handle : int) return int;
  70    pragma Import (C, dup, "dup");
  71
  72    function dup2 (from, to : int) return int;
  73    pragma Import (C, dup2, "dup2");
  74
  75    function fclose (stream : FILEs) return int;
  76    pragma Import (C, fclose, "fclose");
  77
  78    function fdopen (handle : int; mode : chars) return FILEs;
  79    pragma Import (C, fdopen, "fdopen");
  80
  81    function fflush (stream : FILEs) return int;
  82    pragma Import (C, fflush, "fflush");
  83
  84    function fgetc (stream : FILEs) return int;
  85    pragma Import (C, fgetc, "fgetc");
  86
  87    function fgets (strng : chars; n : int; stream : FILEs) return chars;
  88    pragma Import (C, fgets, "fgets");
  89
  90    function fopen
  91      (filename : chars;
  92       mode     : chars;
  93       encoding : Filename_Encoding := Unspecified) return FILEs;
  94    pragma Import (C, fopen, "__gnat_fopen");
  95
  96    function fputc (C : int; stream : FILEs) return int;
  97    pragma Import (C, fputc, "fputc");
  98
  99    function fputs (Strng : chars; Stream : FILEs) return int;
 100    pragma Import (C, fputs, "fputs");
 101
 102    procedure free (Ptr : System.Address);
 103    pragma Import (C, free, "free");
 104
 105    function freopen
 106      (filename : chars;
 107       mode     : chars;
 108       stream   : FILEs;
 109       encoding : Filename_Encoding := Unspecified) return FILEs;
 110    pragma Import (C, freopen, "__gnat_freopen");
 111
 112    function fseek
 113      (stream : FILEs;
 114       offset : long;
 115       origin : int)
 116       return   int;
 117    pragma Import (C, fseek, "fseek");
 118
 119    function ftell (stream : FILEs) return long;
 120    pragma Import (C, ftell, "ftell");
 121
 122    function getenv (S : String) return System.Address;
 123    pragma Import (C, getenv, "getenv");
 124
 125    function isatty (handle : int) return int;
 126    pragma Import (C, isatty, "isatty");
 127
 128    function lseek (fd : int; offset : off_t; direction : int) return off_t;
 129    pragma Import (C, lseek, "lseek");
 130
 131    function malloc (Size : size_t) return System.Address;
 132    pragma Import (C, malloc, "malloc");
 133
 134    function malloc32 (Size : size_t) return System.Address;
 135    pragma Import (C, malloc32, "malloc");
 136    --  An uncalled alias for malloc except on 64bit systems needing to
 137    --  allocate 32bit memory.
 138
 139    procedure memcpy (S1 : System.Address; S2 : System.Address; N : size_t);
 140    pragma Import (C, memcpy, "memcpy");
 141
 142    procedure memmove (S1 : System.Address; S2 : System.Address; N : size_t);
 143    pragma Import (C, memmove, "memmove");
 144
 145    procedure mktemp (template : chars);
 146    pragma Import (C, mktemp, "mktemp");
 147
 148    function pclose (stream : System.Address) return int;
 149    pragma Import (C, pclose, "pclose");
 150
 151    function popen (command, mode : System.Address) return System.Address;
 152    pragma Import (C, popen, "popen");
 153
 154    function realloc
 155      (Ptr : System.Address; Size : size_t) return System.Address;
 156    pragma Import (C, realloc, "realloc");
 157
 158    function realloc32
 159      (Ptr : System.Address; Size : size_t) return System.Address;
 160    pragma Import (C, realloc32, "realloc");
 161    --  An uncalled alias for realloc except on 64bit systems needing to
 162    --  allocate 32bit memory.
 163
 164    procedure rewind (stream : FILEs);
 165    pragma Import (C, rewind, "rewind");
 166
 167    function rmdir (dir_name : String) return int;
 168    pragma Import (C, rmdir, "__gnat_rmdir");
 169
 170    function chdir (dir_name : String) return int;
 171    pragma Import (C, chdir, "__gnat_chdir");
 172
 173    function setvbuf
 174      (stream : FILEs;
 175       buffer : chars;
 176       mode   : int;
 177       size   : size_t)
 178       return   int;
 179    pragma Import (C, setvbuf, "setvbuf");
 180
 181    procedure tmpnam (string : chars);
 182    pragma Import (C, tmpnam, "tmpnam");
 183
 184    function tmpfile return FILEs;
 185    pragma Import (C, tmpfile, "tmpfile");
 186
 187    function ungetc (c : int; stream : FILEs) return int;
 188    pragma Import (C, ungetc, "ungetc");
 189
 190    function unlink (filename : chars) return int;
 191    pragma Import (C, unlink, "__gnat_unlink");
 192
 193    function open (filename : chars; oflag : int) return int;
 194    pragma Import (C, open, "open");
 195
 196    function close (fd : int) return int;
 197    pragma Import (C, close, "close");
 198
 199    function read (fd : int; buffer : chars; nbytes : int) return int;
 200    pragma Import (C, read, "read");
 201
 202    function write (fd : int; buffer : chars; nbytes : int) return int;
 203    pragma Import (C, write, "write");
 204
 205 end System.CRTL;