bfd/howto.c

   1 /* bfd howto manager.
   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 /* The howto manager
  22
  23
  24 When an application wants to create a relocation, but doesn't know
  25 what the target machine might call it, it can find out by using this
  26 bit of code.
  27
  28 */
  29
  30 #include <sysdep.h>
  31 #include <bfd.h>
  32 #include "libbfd.h"
  33 /*proto* bfd_reloc_code_enum_type
  34
  35 *+++
  36
  37 $typedef enum
  38 ${
  39
  40 16 bits wide, simple reloc
  41
  42 $  BFD_RELOC_16,
  43
  44 8 bits wide, but used to form an address like 0xffnn
  45
  46 $  BFD_RELOC_8_FFnn,
  47
  48 8 bits wide, simple
  49
  50 $  BFD_RELOC_8,
  51
  52 8 bits wide, pc relative
  53
  54 $  BFD_RELOC_8_PCREL
  55 $ } bfd_reloc_code_enum_real_type;
  56
  57 *---
  58
  59 */
  60
  61
  62
  63 /*proto* bfd_reloc_type_lookup
  64 This routine returns a pointer to a howto struct which when invoked,
  65 will perform the supplied relocation on data from the architecture
  66 noted.
  67
  68 [Note] This function will go away.
  69
  70 *; PROTO(struct reloc_howto_struct *,
  71         bfd_reloc_type_lookup,
  72         (enum bfd_architecture arch, bfd_reloc_code_enum_type code));
  73 */
  74
  75
  76 struct reloc_howto_struct *
  77 DEFUN(bfd_reloc_type_lookup,(arch, code),
  78         enum bfd_architecture arch AND
  79         bfd_reloc_code_enum_type code)
  80 {
  81   return arch_functions(arch,0)->reloc_type_lookup(code);
  82 }
  83
  84
  85