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96e39d2a SS |
1 | /* BFD back-end for m68k binaries under Lynx. |
2 | Copyright (C) 1990, 1991, 1992 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | #define BYTES_IN_WORD 4 | |
21 | #define ARCH 32 | |
22 | #define N_SHARED_LIB(x) 0 | |
23 | ||
24 | #define TEXT_START_ADDR 0 | |
25 | #define PAGE_SIZE 4096 | |
26 | #define SEGMENT_SIZE PAGE_SIZE | |
27 | #define DEFAULT_ARCH bfd_arch_m68k | |
28 | ||
29 | #define MY(OP) CAT(m68klynx_aout,OP) | |
30 | #define TARGETNAME "a.out-m68k-lynx" | |
31 | ||
32 | #include "bfd.h" | |
33 | #include "sysdep.h" | |
34 | #include "libbfd.h" | |
35 | ||
36 | #include "libaout.h" | |
37 | ||
38 | #define MY_BFD_TARGET | |
39 | ||
40 | #include "aout-target.h" | |
41 | ||
42 | bfd_target m68klynx_aout_vec = | |
43 | { | |
44 | TARGETNAME, /* name */ | |
45 | bfd_target_aout_flavour, | |
46 | #ifdef TARGET_IS_BIG_ENDIAN_P | |
47 | true, /* target byte order (big) */ | |
48 | true, /* target headers byte order (big) */ | |
49 | #else | |
50 | false, /* target byte order (little) */ | |
51 | false, /* target headers byte order (little) */ | |
52 | #endif | |
53 | (HAS_RELOC | EXEC_P | /* object flags */ | |
54 | HAS_LINENO | HAS_DEBUG | | |
55 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED), | |
56 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
57 | MY_symbol_leading_char, | |
58 | AR_PAD_CHAR, /* ar_pad_char */ | |
59 | 15, /* ar_max_namelen */ | |
60 | 3, /* minimum alignment */ | |
61 | #ifdef TARGET_IS_BIG_ENDIAN_P | |
62 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
63 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
64 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
65 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
66 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
67 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
68 | #else | |
69 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
70 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
71 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
72 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
73 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
74 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
75 | #endif | |
76 | {_bfd_dummy_target, MY_object_p, /* bfd_check_format */ | |
77 | bfd_generic_archive_p, MY_core_file_p}, | |
78 | {bfd_false, MY_mkobject, /* bfd_set_format */ | |
79 | _bfd_generic_mkarchive, bfd_false}, | |
80 | {bfd_false, MY_write_object_contents, /* bfd_write_contents */ | |
81 | _bfd_write_archive_contents, bfd_false}, | |
82 | ||
83 | MY_core_file_failing_command, | |
84 | MY_core_file_failing_signal, | |
85 | MY_core_file_matches_executable_p, | |
86 | MY_slurp_armap, | |
87 | MY_slurp_extended_name_table, | |
88 | MY_truncate_arname, | |
89 | MY_write_armap, | |
90 | MY_close_and_cleanup, | |
91 | MY_set_section_contents, | |
92 | MY_get_section_contents, | |
93 | MY_new_section_hook, | |
94 | MY_get_symtab_upper_bound, | |
95 | MY_get_symtab, | |
96 | MY_get_reloc_upper_bound, | |
97 | MY_canonicalize_reloc, | |
98 | MY_make_empty_symbol, | |
99 | MY_print_symbol, | |
100 | MY_get_symbol_info, | |
101 | MY_get_lineno, | |
102 | MY_set_arch_mach, | |
103 | MY_openr_next_archived_file, | |
104 | MY_find_nearest_line, | |
105 | MY_generic_stat_arch_elt, | |
106 | MY_sizeof_headers, | |
107 | MY_bfd_debug_info_start, | |
108 | MY_bfd_debug_info_end, | |
109 | MY_bfd_debug_info_accumulate, | |
110 | bfd_generic_get_relocated_section_contents, | |
111 | bfd_generic_relax_section, | |
112 | bfd_generic_seclet_link, | |
113 | MY_reloc_howto_type_lookup, | |
114 | MY_make_debug_symbol, | |
115 | (PTR) MY_backend_data, | |
116 | }; | |
117 | ||
118 | /* BFD back-end for Motorola 68000 COFF binaries. | |
119 | Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc. | |
120 | Written by Cygnus Support. | |
121 | ||
122 | This file is part of BFD, the Binary File Descriptor library. | |
123 | ||
124 | This program is free software; you can redistribute it and/or modify | |
125 | it under the terms of the GNU General Public License as published by | |
126 | the Free Software Foundation; either version 2 of the License, or | |
127 | (at your option) any later version. | |
128 | ||
129 | This program is distributed in the hope that it will be useful, | |
130 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
131 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
132 | GNU General Public License for more details. | |
133 | ||
134 | You should have received a copy of the GNU General Public License | |
135 | along with this program; if not, write to the Free Software | |
136 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
137 | ||
138 | #undef OMAGIC | |
139 | #undef N_ABS | |
140 | #undef exec_hdr | |
141 | #undef obj_sym_filepos | |
142 | ||
143 | #include "obstack.h" | |
144 | #include "coff/m68k.h" | |
145 | #include "coff/internal.h" | |
146 | #include "libcoff.h" | |
147 | ||
148 | #define COFF_LONG_FILENAMES | |
149 | ||
150 | #ifdef ONLY_DECLARE_RELOCS | |
151 | extern reloc_howto_type m68kcoff_howto_table[]; | |
152 | #else | |
153 | reloc_howto_type m68kcoff_howto_table[] = | |
154 | { | |
155 | HOWTO(R_RELBYTE, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "8", true, 0x000000ff,0x000000ff, false), | |
156 | HOWTO(R_RELWORD, 0, 1, 16, false, 0, complain_overflow_bitfield, 0, "16", true, 0x0000ffff,0x0000ffff, false), | |
157 | HOWTO(R_RELLONG, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, "32", true, 0xffffffff,0xffffffff, false), | |
158 | HOWTO(R_PCRBYTE, 0, 0, 8, true, 0, complain_overflow_signed, 0, "DISP8", true, 0x000000ff,0x000000ff, false), | |
159 | HOWTO(R_PCRWORD, 0, 1, 16, true, 0, complain_overflow_signed, 0, "DISP16", true, 0x0000ffff,0x0000ffff, false), | |
160 | HOWTO(R_PCRLONG, 0, 2, 32, true, 0, complain_overflow_signed, 0, "DISP32", true, 0xffffffff,0xffffffff, false), | |
161 | HOWTO(R_RELLONG_NEG, 0, -2, 32, false, 0, complain_overflow_bitfield, 0, "-32", true, 0xffffffff,0xffffffff, false), | |
162 | }; | |
163 | #endif /* not ONLY_DECLARE_RELOCS */ | |
164 | ||
165 | #ifndef BADMAG | |
166 | #define BADMAG(x) M68KBADMAG(x) | |
167 | #endif | |
168 | #define M68 1 /* Customize coffcode.h */ | |
169 | ||
170 | /* Turn a howto into a reloc number */ | |
171 | ||
172 | #ifdef ONLY_DECLARE_RELOCS | |
173 | extern void m68k_rtype2howto PARAMS ((arelent *internal, int relocentry)); | |
174 | extern int m68k_howto2rtype PARAMS ((CONST struct reloc_howto_struct *)); | |
175 | #else | |
176 | void | |
177 | m68k_rtype2howto(internal, relocentry) | |
178 | arelent *internal; | |
179 | int relocentry; | |
180 | { | |
181 | switch (relocentry) | |
182 | { | |
183 | case R_RELBYTE: internal->howto = m68kcoff_howto_table + 0; break; | |
184 | case R_RELWORD: internal->howto = m68kcoff_howto_table + 1; break; | |
185 | case R_RELLONG: internal->howto = m68kcoff_howto_table + 2; break; | |
186 | case R_PCRBYTE: internal->howto = m68kcoff_howto_table + 3; break; | |
187 | case R_PCRWORD: internal->howto = m68kcoff_howto_table + 4; break; | |
188 | case R_PCRLONG: internal->howto = m68kcoff_howto_table + 5; break; | |
189 | case R_RELLONG_NEG: internal->howto = m68kcoff_howto_table + 6; break; | |
190 | } | |
191 | } | |
192 | ||
193 | int | |
194 | m68k_howto2rtype (internal) | |
195 | CONST struct reloc_howto_struct *internal; | |
196 | { | |
197 | if (internal->pc_relative) | |
198 | { | |
199 | switch (internal->bitsize) | |
200 | { | |
201 | case 32: return R_PCRLONG; | |
202 | case 16: return R_PCRWORD; | |
203 | case 8: return R_PCRBYTE; | |
204 | } | |
205 | } | |
206 | else | |
207 | { | |
208 | switch (internal->bitsize) | |
209 | { | |
210 | case 32: return R_RELLONG; | |
211 | case 16: return R_RELWORD; | |
212 | case 8: return R_RELBYTE; | |
213 | } | |
214 | } | |
215 | return R_RELLONG; | |
216 | } | |
217 | #endif /* not ONLY_DECLARE_RELOCS */ | |
218 | ||
219 | #define RTYPE2HOWTO(internal, relocentry) \ | |
220 | m68k_rtype2howto(internal, (relocentry)->r_type) | |
221 | ||
222 | #define SELECT_RELOC(external, internal) \ | |
223 | external = m68k_howto2rtype(internal); | |
224 | ||
225 | #include "coffcode.h" | |
226 | ||
227 | bfd_target m68klynx_coff_vec = | |
228 | { | |
229 | "coff-m68k-lynx", | |
230 | ||
231 | bfd_target_coff_flavour, | |
232 | true, /* data byte order is big */ | |
233 | true, /* header byte order is big */ | |
234 | ||
235 | (HAS_RELOC | EXEC_P | /* object flags */ | |
236 | HAS_LINENO | HAS_DEBUG | | |
237 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), | |
238 | ||
239 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
240 | #ifdef NAMES_HAVE_UNDERSCORE | |
241 | '_', | |
242 | #else | |
243 | 0, /* leading underscore */ | |
244 | #endif | |
245 | '/', /* ar_pad_char */ | |
246 | 15, /* ar_max_namelen */ | |
247 | 1, /* minimum section alignment */ | |
248 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
249 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
250 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
251 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
252 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
253 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
254 | ||
255 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
256 | bfd_generic_archive_p, _bfd_dummy_target}, | |
257 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
258 | bfd_false}, | |
259 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
260 | _bfd_write_archive_contents, bfd_false}, | |
261 | ||
262 | JUMP_TABLE(coff), | |
263 | COFF_SWAP_TABLE | |
264 | }; |