1 /* BFD back-end for Motorola 68000 COFF binaries.
2 Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
25 #include "coff/m68k.h"
26 #include "coff/internal.h"
29 #ifndef LYNX_SPECIAL_FN
30 #define LYNX_SPECIAL_FN 0
33 /* Clean up namespace. */
34 #define m68kcoff_howto_table _bfd_m68kcoff_howto_table
35 #define m68k_rtype2howto _bfd_m68kcoff_rtype2howto
36 #define m68k_howto2rtype _bfd_m68kcoff_howto2rtype
38 #ifdef ONLY_DECLARE_RELOCS
39 extern reloc_howto_type m68kcoff_howto_table
[];
41 reloc_howto_type m68kcoff_howto_table
[] =
43 HOWTO(R_RELBYTE
, 0, 0, 8, false, 0, complain_overflow_bitfield
, LYNX_SPECIAL_FN
, "8", true, 0x000000ff,0x000000ff, false),
44 HOWTO(R_RELWORD
, 0, 1, 16, false, 0, complain_overflow_bitfield
, LYNX_SPECIAL_FN
, "16", true, 0x0000ffff,0x0000ffff, false),
45 HOWTO(R_RELLONG
, 0, 2, 32, false, 0, complain_overflow_bitfield
, LYNX_SPECIAL_FN
, "32", true, 0xffffffff,0xffffffff, false),
46 HOWTO(R_PCRBYTE
, 0, 0, 8, true, 0, complain_overflow_signed
, LYNX_SPECIAL_FN
, "DISP8", true, 0x000000ff,0x000000ff, false),
47 HOWTO(R_PCRWORD
, 0, 1, 16, true, 0, complain_overflow_signed
, LYNX_SPECIAL_FN
, "DISP16", true, 0x0000ffff,0x0000ffff, false),
48 HOWTO(R_PCRLONG
, 0, 2, 32, true, 0, complain_overflow_signed
, LYNX_SPECIAL_FN
, "DISP32", true, 0xffffffff,0xffffffff, false),
49 HOWTO(R_RELLONG_NEG
, 0, -2, 32, false, 0, complain_overflow_bitfield
, LYNX_SPECIAL_FN
, "-32", true, 0xffffffff,0xffffffff, false),
51 #endif /* not ONLY_DECLARE_RELOCS */
54 #define BADMAG(x) M68KBADMAG(x)
56 #define M68 1 /* Customize coffcode.h */
58 /* Turn a howto into a reloc number */
60 #ifdef ONLY_DECLARE_RELOCS
61 extern void m68k_rtype2howto
PARAMS ((arelent
*internal
, int relocentry
));
62 extern int m68k_howto2rtype
PARAMS ((CONST
struct reloc_howto_struct
*));
65 m68k_rtype2howto(internal
, relocentry
)
71 case R_RELBYTE
: internal
->howto
= m68kcoff_howto_table
+ 0; break;
72 case R_RELWORD
: internal
->howto
= m68kcoff_howto_table
+ 1; break;
73 case R_RELLONG
: internal
->howto
= m68kcoff_howto_table
+ 2; break;
74 case R_PCRBYTE
: internal
->howto
= m68kcoff_howto_table
+ 3; break;
75 case R_PCRWORD
: internal
->howto
= m68kcoff_howto_table
+ 4; break;
76 case R_PCRLONG
: internal
->howto
= m68kcoff_howto_table
+ 5; break;
77 case R_RELLONG_NEG
: internal
->howto
= m68kcoff_howto_table
+ 6; break;
82 m68k_howto2rtype (internal
)
83 CONST
struct reloc_howto_struct
*internal
;
85 if (internal
->pc_relative
)
87 switch (internal
->bitsize
)
89 case 32: return R_PCRLONG
;
90 case 16: return R_PCRWORD
;
91 case 8: return R_PCRBYTE
;
96 switch (internal
->bitsize
)
98 case 32: return R_RELLONG
;
99 case 16: return R_RELWORD
;
100 case 8: return R_RELBYTE
;
105 #endif /* not ONLY_DECLARE_RELOCS */
107 #define RTYPE2HOWTO(internal, relocentry) \
108 m68k_rtype2howto(internal, (relocentry)->r_type)
110 #define SELECT_RELOC(external, internal) \
111 external.r_type = m68k_howto2rtype(internal);
113 #include "coffcode.h"
125 "coff-m68k", /* name */
127 bfd_target_coff_flavour
,
128 true, /* data byte order is big */
129 true, /* header byte order is big */
131 (HAS_RELOC
| EXEC_P
| /* object flags */
132 HAS_LINENO
| HAS_DEBUG
|
133 HAS_SYMS
| HAS_LOCALS
| WP_TEXT
),
135 (SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
), /* section flags */
136 #ifdef NAMES_HAVE_UNDERSCORE
139 0, /* leading underscore */
141 '/', /* ar_pad_char */
142 15, /* ar_max_namelen */
143 1, /* minimum section alignment */
144 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
145 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
146 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
, /* data */
147 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
148 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
149 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
, /* hdrs */
151 {_bfd_dummy_target
, coff_object_p
, /* bfd_check_format */
152 bfd_generic_archive_p
, _bfd_dummy_target
},
153 {bfd_false
, coff_mkobject
, _bfd_generic_mkarchive
, /* bfd_set_format */
155 {bfd_false
, coff_write_object_contents
, /* bfd_write_contents */
156 _bfd_write_archive_contents
, bfd_false
},
158 BFD_JUMP_TABLE_GENERIC (coff
),
159 BFD_JUMP_TABLE_COPY (coff
),
160 BFD_JUMP_TABLE_CORE (_bfd_nocore
),
161 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff
),
162 BFD_JUMP_TABLE_SYMBOLS (coff
),
163 BFD_JUMP_TABLE_RELOCS (coff
),
164 BFD_JUMP_TABLE_WRITE (coff
),
165 BFD_JUMP_TABLE_LINK (coff
),