bfd/init.c

   1 /* bfd initialization stuff
   2    Copyright (C) 1990-1991 Free Software Foundation, Inc.
   3    Written by Steve Chamberlain of Cygnus Support.
   4
   5 This file is part of BFD, the Binary File Descriptor library.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 #include "bfd.h"
  22 #include "sysdep.h"
  23 #include "libbfd.h"
  24
  25 extern void DEFUN_VOID (bfd_section_init);
  26
  27 static boolean initialized = false;
  28
  29 /*
  30 SECTION
  31         Initialization
  32
  33         These are the functions that handle initializing a BFD.
  34 */
  35
  36 /*
  37 FUNCTION
  38         bfd_init
  39
  40 SYNOPSIS
  41         void bfd_init(void);
  42
  43 DESCRIPTION
  44         This routine must be called before any other libbfd function to
  45         initialize magical internal data structures.
  46 */
  47
  48 void
  49 bfd_init ()
  50 {
  51   if (initialized == false) {
  52     initialized = true;
  53
  54     bfd_arch_init();
  55   }
  56 }
  57
  58
  59 /*
  60 INTERNAL_FUNCTION
  61         bfd_check_init
  62
  63 SYNOPSIS
  64         void bfd_check_init(void);
  65
  66 DESCRIPTION
  67         This routine is called before any other libbfd function using
  68         initialized data. It ensures that the structures have
  69         been initialized.  Soon this function will go away, and the bfd
  70         library will assume that <<bfd_init>> has been called.
  71 */
  72
  73 void
  74 bfd_check_init ()
  75 {
  76   if (initialized == false) {
  77     bfd_init();
  78   }
  79 }