1/* BFD back-end for Apollo 68000 COFF binaries.
2   Copyright 1990, 1991, 1992, 1993, 1994, 1999, 2000, 2001, 2002, 2003,
3   2005, 2007, 2008  Free Software Foundation, Inc.
4   By Troy Rollo (troy@cbme.unsw.edu.au)
5   Based on m68k standard COFF version Written by Cygnus Support.
6
7   This file is part of BFD, the Binary File Descriptor library.
8
9   This program is free software; you can redistribute it and/or modify
10   it under the terms of the GNU General Public License as published by
11   the Free Software Foundation; either version 3 of the License, or
12   (at your option) any later version.
13
14   This program is distributed in the hope that it will be useful,
15   but WITHOUT ANY WARRANTY; without even the implied warranty of
16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17   GNU General Public License for more details.
18
19   You should have received a copy of the GNU General Public License
20   along with this program; if not, write to the Free Software
21   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22   MA 02110-1301, USA.  */
23
24#include "sysdep.h"
25#include "bfd.h"
26#include "libbfd.h"
27#include "coff/apollo.h"
28#include "coff/internal.h"
29#include "libcoff.h"
30
31#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
32
33#ifdef ONLY_DECLARE_RELOCS
34extern reloc_howto_type apollocoff_howto_table[];
35#else
36reloc_howto_type apollocoff_howto_table[] =
37  {
38    HOWTO (R_RELBYTE,	       0,  0,  	8,  FALSE, 0, complain_overflow_bitfield, 0, "8",	TRUE, 0x000000ff,0x000000ff, FALSE),
39    HOWTO (R_RELWORD,	       0,  1, 	16, FALSE, 0, complain_overflow_bitfield, 0, "16",	TRUE, 0x0000ffff,0x0000ffff, FALSE),
40    HOWTO (R_RELLONG,	       0,  2, 	32, FALSE, 0, complain_overflow_bitfield, 0, "32",	TRUE, 0xffffffff,0xffffffff, FALSE),
41    HOWTO (R_PCRBYTE,	       0,  0, 	8,  TRUE,  0, complain_overflow_signed,   0, "DISP8",   TRUE, 0x000000ff,0x000000ff, FALSE),
42    HOWTO (R_PCRWORD,	       0,  1, 	16, TRUE,  0, complain_overflow_signed,   0, "DISP16",  TRUE, 0x0000ffff,0x0000ffff, FALSE),
43    HOWTO (R_PCRLONG,	       0,  2, 	32, TRUE,  0, complain_overflow_signed,   0, "DISP32",  TRUE, 0xffffffff,0xffffffff, FALSE),
44    HOWTO (R_RELLONG_NEG,      0,  -2, 	32, FALSE, 0, complain_overflow_bitfield, 0, "-32",	TRUE, 0xffffffff,0xffffffff, FALSE),
45  };
46#endif /* not ONLY_DECLARE_RELOCS */
47
48#ifndef BADMAG
49#define BADMAG(x) M68KBADMAG(x)
50#endif
51#define APOLLO_M68 1		/* Customize coffcode.h */
52
53/* Turn a howto into a reloc number.  */
54
55extern void apollo_rtype2howto PARAMS ((arelent *, int));
56extern int  apollo_howto2rtype PARAMS ((reloc_howto_type *));
57#ifndef ONLY_DECLARE_RELOCS
58
59void
60apollo_rtype2howto (internal, relocentry)
61     arelent *internal;
62     int relocentry;
63{
64  switch (relocentry)
65    {
66    case R_RELBYTE:	internal->howto = apollocoff_howto_table + 0; break;
67    case R_RELWORD:	internal->howto = apollocoff_howto_table + 1; break;
68    case R_RELLONG:	internal->howto = apollocoff_howto_table + 2; break;
69    case R_PCRBYTE:	internal->howto = apollocoff_howto_table + 3; break;
70    case R_PCRWORD:	internal->howto = apollocoff_howto_table + 4; break;
71    case R_PCRLONG:	internal->howto = apollocoff_howto_table + 5; break;
72    case R_RELLONG_NEG:	internal->howto = apollocoff_howto_table + 6; break;
73    }
74}
75
76int
77apollo_howto2rtype (internal)
78     reloc_howto_type *internal;
79{
80  if (internal->pc_relative)
81    {
82      switch (internal->bitsize)
83	{
84	case 32: return R_PCRLONG;
85	case 16: return R_PCRWORD;
86	case 8: return R_PCRBYTE;
87	}
88    }
89  else
90    {
91      switch (internal->bitsize)
92	{
93	case 32: return R_RELLONG;
94	case 16: return R_RELWORD;
95	case 8: return R_RELBYTE;
96	}
97    }
98  return R_RELLONG;
99}
100#endif /* not ONLY_DECLARE_RELOCS */
101
102#define RTYPE2HOWTO(internal, relocentry) \
103  apollo_rtype2howto (internal, (relocentry)->r_type)
104
105#define SELECT_RELOC(external, internal) \
106  external.r_type = apollo_howto2rtype (internal);
107
108#define bfd_pe_print_pdata	NULL
109
110#include "coffcode.h"
111
112#ifndef TARGET_SYM
113#define TARGET_SYM apollocoff_vec
114#endif
115
116#ifndef TARGET_NAME
117#define TARGET_NAME "apollo-m68k"
118#endif
119
120#ifdef NAMES_HAVE_UNDERSCORE
121CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, '_', NULL, COFF_SWAP_TABLE)
122#else
123CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, 0, NULL, COFF_SWAP_TABLE)
124#endif
125