bfd/coff-m68k.c

   1 /* Motorola 68000 COFF back-end for BFD.
   2    Copyright (C) 1990-1991 Free Software Foundation, Inc.
   3    Written by 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 #include "obstack.h"
  25 #include "coff/m68k.h"
  26 #include "coff/internal.h"
  27 #include "libcoff.h"
  28
  29  reloc_howto_type m68kcoff_howto_table[] =
  30 {
  31   HOWTO(R_RELBYTE,             0,  0,   8,  false, 0, true,  true,0,"8",        true, 0x000000ff,0x000000ff, false),
  32   HOWTO(R_RELWORD,             0,  1,   16, false, 0, true,  true,0,"16",       true, 0x0000ffff,0x0000ffff, false),
  33   HOWTO(R_RELLONG,             0,  2,   32, false, 0, true,  true,0,"32",       true, 0xffffffff,0xffffffff, false),
  34   HOWTO(R_PCRBYTE,             0,  0,   8,  true,  0, false, true,0,"DISP8",    true, 0x000000ff,0x000000ff, false),
  35   HOWTO(R_PCRWORD,             0,  1,   16, true,  0, false, true,0,"DISP16",   true, 0x0000ffff,0x0000ffff, false),
  36   HOWTO(R_PCRLONG,             0,  2,   32, true,  0, false, true,0,"DISP32",   true, 0xffffffff,0xffffffff, false),
  37   HOWTO(R_RELLONG_NEG,         0,  -2,  32, false, 0, true,  true,0,"-32",      true, 0xffffffff,0xffffffff, false),
  38 };
  39
  40
  41 /* Turn a howto into a reloc number */
  42
  43
  44 #define BADMAG(x) M68KBADMAG(x)
  45 #define M68 1           /* Customize coffcode.h */
  46
  47 m68k_rtype2howto(internal, relocentry)
  48 arelent *internal;
  49 int relocentry;
  50 {
  51   switch (relocentry)
  52   {
  53    case R_RELBYTE:   (internal)->howto = ( m68kcoff_howto_table + 0);break;
  54    case R_RELWORD:     (internal)->howto = ( m68kcoff_howto_table + 1);break;
  55    case R_RELLONG:      (internal)->howto = ( m68kcoff_howto_table + 2);break;
  56    case R_PCRBYTE:       (internal)->howto = ( m68kcoff_howto_table + 3);break;
  57    case R_PCRWORD:        (internal)->howto = ( m68kcoff_howto_table + 4);break;
  58    case R_PCRLONG:         (internal)->howto = ( m68kcoff_howto_table + 5);break;
  59    case R_RELLONG_NEG:      (internal)->howto = ( m68kcoff_howto_table + 6);break;
  60   }
  61
  62
  63 }
  64
  65 #define RTYPE2HOWTO(internal, relocentry) m68k_rtype2howto(internal, (relocentry)->r_type)
  66
  67 #include "coffcode.h"
  68
  69
  70 bfd_target m68kcoff_vec =
  71 {
  72   "coff-m68k",                  /* name */
  73   bfd_target_coff_flavour,
  74   true,                         /* data byte order is big */
  75   true,                         /* header byte order is big */
  76
  77   (HAS_RELOC | EXEC_P |         /* object flags */
  78    HAS_LINENO | HAS_DEBUG |
  79    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
  80
  81   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
  82   0,                            /* leading underscore */
  83   '/',                          /* ar_pad_char */
  84   15,                           /* ar_max_namelen */
  85   3,                            /* minimum section alignment */
  86   _do_getb64, _do_putb64,  _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
  87   _do_getb64, _do_putb64,  _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
  88
  89  {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
  90    bfd_generic_archive_p, _bfd_dummy_target},
  91  {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
  92    bfd_false},
  93  {bfd_false, coff_write_object_contents, /* bfd_write_contents */
  94    _bfd_write_archive_contents, bfd_false},
  95
  96   JUMP_TABLE(coff),
  97   COFF_SWAP_TABLE
  98  };