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6812b607 ILT |
1 | /* BFD back-end for Apollo 68000 COFF binaries. |
2 | Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc. | |
3 | By Troy Rollo ([email protected]) | |
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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
21 | ||
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
24 | #include "libbfd.h" | |
25 | #include "obstack.h" | |
26 | #include "coff/apollo.h" | |
27 | #include "coff/internal.h" | |
28 | #include "libcoff.h" | |
29 | ||
30 | #ifdef ONLY_DECLARE_RELOCS | |
31 | extern reloc_howto_type apollocoff_howto_table[]; | |
32 | #else | |
33 | reloc_howto_type apollocoff_howto_table[] = | |
34 | { | |
35 | HOWTO(R_RELBYTE, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "8", true, 0x000000ff,0x000000ff, false), | |
36 | HOWTO(R_RELWORD, 0, 1, 16, false, 0, complain_overflow_bitfield, 0, "16", true, 0x0000ffff,0x0000ffff, false), | |
37 | HOWTO(R_RELLONG, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, "32", true, 0xffffffff,0xffffffff, false), | |
38 | HOWTO(R_PCRBYTE, 0, 0, 8, true, 0, complain_overflow_signed, 0, "DISP8", true, 0x000000ff,0x000000ff, false), | |
39 | HOWTO(R_PCRWORD, 0, 1, 16, true, 0, complain_overflow_signed, 0, "DISP16", true, 0x0000ffff,0x0000ffff, false), | |
40 | HOWTO(R_PCRLONG, 0, 2, 32, true, 0, complain_overflow_signed, 0, "DISP32", true, 0xffffffff,0xffffffff, false), | |
41 | HOWTO(R_RELLONG_NEG, 0, -2, 32, false, 0, complain_overflow_bitfield, 0, "-32", true, 0xffffffff,0xffffffff, false), | |
42 | }; | |
43 | #endif /* not ONLY_DECLARE_RELOCS */ | |
44 | ||
45 | #ifndef BADMAG | |
46 | #define BADMAG(x) M68KBADMAG(x) | |
47 | #endif | |
48 | #define APOLLO_M68 1 /* Customize coffcode.h */ | |
49 | ||
50 | /* Turn a howto into a reloc number */ | |
51 | ||
52 | #ifdef ONLY_DECLARE_RELOCS | |
53 | extern void apollo_rtype2howto PARAMS ((arelent *internal, int relocentry)); | |
54 | extern int apollo_howto2rtype PARAMS ((CONST struct reloc_howto_struct *)); | |
55 | #else | |
56 | void | |
57 | apollo_rtype2howto(internal, relocentry) | |
58 | arelent *internal; | |
59 | 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 | |
74 | apollo_howto2rtype (internal) | |
75 | CONST struct reloc_howto_struct *internal; | |
76 | { | |
77 | if (internal->pc_relative) | |
78 | { | |
79 | switch (internal->bitsize) | |
80 | { | |
81 | case 32: return R_PCRLONG; | |
82 | case 16: return R_PCRWORD; | |
83 | case 8: return R_PCRBYTE; | |
84 | } | |
85 | } | |
86 | else | |
87 | { | |
88 | switch (internal->bitsize) | |
89 | { | |
90 | case 32: return R_RELLONG; | |
91 | case 16: return R_RELWORD; | |
92 | case 8: return R_RELBYTE; | |
93 | } | |
94 | } | |
95 | return R_RELLONG; | |
96 | } | |
97 | #endif /* not ONLY_DECLARE_RELOCS */ | |
98 | ||
99 | #define RTYPE2HOWTO(internal, relocentry) \ | |
100 | apollo_rtype2howto(internal, (relocentry)->r_type) | |
101 | ||
102 | #define SELECT_RELOC(external, internal) \ | |
103 | external.r_type = apollo_howto2rtype(internal); | |
104 | ||
105 | #include "coffcode.h" | |
106 | ||
107 | bfd_target | |
108 | #ifdef TARGET_SYM | |
109 | TARGET_SYM = | |
110 | #else | |
111 | apollocoff_vec = | |
112 | #endif | |
113 | { | |
114 | #ifdef TARGET_NAME | |
115 | TARGET_NAME, | |
116 | #else | |
117 | "apollo-m68k", /* name */ | |
118 | #endif | |
119 | bfd_target_coff_flavour, | |
120 | true, /* data byte order is big */ | |
121 | true, /* header byte order is big */ | |
122 | ||
123 | (HAS_RELOC | EXEC_P | /* object flags */ | |
124 | HAS_LINENO | HAS_DEBUG | | |
125 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
126 | ||
127 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
128 | #ifdef NAMES_HAVE_UNDERSCORE | |
129 | '_', | |
130 | #else | |
131 | 0, /* leading underscore */ | |
132 | #endif | |
133 | '/', /* ar_pad_char */ | |
134 | 15, /* ar_max_namelen */ | |
135 | 3, /* minimum section alignment */ | |
136 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
137 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
138 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
139 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
140 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
141 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
142 | ||
143 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
144 | bfd_generic_archive_p, _bfd_dummy_target}, | |
145 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
146 | bfd_false}, | |
147 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
148 | _bfd_write_archive_contents, bfd_false}, | |
149 | ||
150 | BFD_JUMP_TABLE_GENERIC (coff), | |
151 | BFD_JUMP_TABLE_COPY (coff), | |
152 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
153 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
154 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
155 | BFD_JUMP_TABLE_RELOCS (coff), | |
156 | BFD_JUMP_TABLE_WRITE (coff), | |
157 | BFD_JUMP_TABLE_LINK (coff), | |
158 | ||
159 | COFF_SWAP_TABLE | |
160 | }; |