1/* BFD back-end for Apollo 68000 COFF binaries.
2   Copyright (C) 1990-2017 Free Software Foundation, Inc.
3   By Troy Rollo (troy@cbme.unsw.edu.au)
4   Based on m68k standard COFF version Written by Cygnus Support.
5
6   This file is part of BFD, the Binary File Descriptor library.
7
8   This program is free software; you can redistribute it and/or modify
9   it under the terms of the GNU General Public License as published by
10   the Free Software Foundation; either version 3 of the License, or
11   (at your option) any later version.
12
13   This program is distributed in the hope that it will be useful,
14   but WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16   GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this program; if not, write to the Free Software
20   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21   MA 02110-1301, USA.  */
22
23#include "sysdep.h"
24#include "bfd.h"
25#include "libbfd.h"
26#include "coff/apollo.h"
27#include "coff/internal.h"
28#include "libcoff.h"
29
30#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
31
32#ifdef ONLY_DECLARE_RELOCS
33extern reloc_howto_type apollocoff_howto_table[];
34#else
35reloc_howto_type apollocoff_howto_table[] =
36  {
37    HOWTO (R_RELBYTE,	       0,  0,  	8,  FALSE, 0, complain_overflow_bitfield, 0, "8",	TRUE, 0x000000ff,0x000000ff, FALSE),
38    HOWTO (R_RELWORD,	       0,  1, 	16, FALSE, 0, complain_overflow_bitfield, 0, "16",	TRUE, 0x0000ffff,0x0000ffff, FALSE),
39    HOWTO (R_RELLONG,	       0,  2, 	32, FALSE, 0, complain_overflow_bitfield, 0, "32",	TRUE, 0xffffffff,0xffffffff, FALSE),
40    HOWTO (R_PCRBYTE,	       0,  0, 	8,  TRUE,  0, complain_overflow_signed,   0, "DISP8",   TRUE, 0x000000ff,0x000000ff, FALSE),
41    HOWTO (R_PCRWORD,	       0,  1, 	16, TRUE,  0, complain_overflow_signed,   0, "DISP16",  TRUE, 0x0000ffff,0x0000ffff, FALSE),
42    HOWTO (R_PCRLONG,	       0,  2, 	32, TRUE,  0, complain_overflow_signed,   0, "DISP32",  TRUE, 0xffffffff,0xffffffff, FALSE),
43    HOWTO (R_RELLONG_NEG,      0,  -2, 	32, FALSE, 0, complain_overflow_bitfield, 0, "-32",	TRUE, 0xffffffff,0xffffffff, FALSE),
44  };
45#endif /* not ONLY_DECLARE_RELOCS */
46
47#ifndef BADMAG
48#define BADMAG(x) M68KBADMAG(x)
49#endif
50#define APOLLO_M68 1		/* Customize coffcode.h */
51
52/* Turn a howto into a reloc number.  */
53
54extern void apollo_rtype2howto (arelent *, int);
55extern int  apollo_howto2rtype (reloc_howto_type *);
56#ifndef ONLY_DECLARE_RELOCS
57
58void
59apollo_rtype2howto (arelent *internal, int relocentry)
60{
61  switch (relocentry)
62    {
63    case R_RELBYTE:	internal->howto = apollocoff_howto_table + 0; break;
64    case R_RELWORD:	internal->howto = apollocoff_howto_table + 1; break;
65    case R_RELLONG:	internal->howto = apollocoff_howto_table + 2; break;
66    case R_PCRBYTE:	internal->howto = apollocoff_howto_table + 3; break;
67    case R_PCRWORD:	internal->howto = apollocoff_howto_table + 4; break;
68    case R_PCRLONG:	internal->howto = apollocoff_howto_table + 5; break;
69    case R_RELLONG_NEG:	internal->howto = apollocoff_howto_table + 6; break;
70    }
71}
72
73int
74apollo_howto2rtype (reloc_howto_type *internal)
75{
76  if (internal->pc_relative)
77    {
78      switch (internal->bitsize)
79	{
80	case 32: return R_PCRLONG;
81	case 16: return R_PCRWORD;
82	case 8: return R_PCRBYTE;
83	}
84    }
85  else
86    {
87      switch (internal->bitsize)
88	{
89	case 32: return R_RELLONG;
90	case 16: return R_RELWORD;
91	case 8: return R_RELBYTE;
92	}
93    }
94  return R_RELLONG;
95}
96#endif /* not ONLY_DECLARE_RELOCS */
97
98#define RTYPE2HOWTO(internal, relocentry) \
99  apollo_rtype2howto (internal, (relocentry)->r_type)
100
101#define SELECT_RELOC(external, internal) \
102  external.r_type = apollo_howto2rtype (internal);
103
104#define bfd_pe_print_pdata	NULL
105
106#include "coffcode.h"
107
108#ifndef TARGET_SYM
109#define TARGET_SYM m68k_coff_apollo_vec
110#endif
111
112#ifndef TARGET_NAME
113#define TARGET_NAME "apollo-m68k"
114#endif
115
116#ifdef NAMES_HAVE_UNDERSCORE
117CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, '_', NULL, COFF_SWAP_TABLE)
118#else
119CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, 0, NULL, COFF_SWAP_TABLE)
120#endif
121