1 /* BFD back-end for Apollo 68000 COFF binaries.
2 Copyright (C) 1990-2016 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
33 extern reloc_howto_type apollocoff_howto_table[];
34 #else
35 reloc_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
54 extern void apollo_rtype2howto (arelent *, int);
55 extern int apollo_howto2rtype (reloc_howto_type *);
56 #ifndef ONLY_DECLARE_RELOCS
57
58 void
apollo_rtype2howto(arelent * internal,int relocentry)59 apollo_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
73 int
apollo_howto2rtype(reloc_howto_type * internal)74 apollo_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
117 CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, '_', NULL, COFF_SWAP_TABLE)
118 #else
119 CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, 0, NULL, COFF_SWAP_TABLE)
120 #endif
121