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582bc90a | 1 | /* Define a target vector and some small routines for a variant of a.out. |
4c3721d5 | 2 | Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc. |
e98e6ec1 SC |
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 | ||
582bc90a PB |
20 | #include "aout/aout64.h" |
21 | #include "aout/stab_gnu.h" | |
22 | #include "aout/ar.h" | |
23 | /*#include "libaout.h"*/ | |
24 | ||
214f8f23 KR |
25 | extern CONST struct reloc_howto_struct * NAME(aout,reloc_type_lookup) (); |
26 | ||
e98e6ec1 SC |
27 | /* Set parameters about this a.out file that are machine-dependent. |
28 | This routine is called from some_aout_object_p just before it returns. */ | |
214f8f23 | 29 | #ifndef MY_callback |
e98e6ec1 | 30 | static bfd_target * |
57a1867e DM |
31 | MY(callback) (abfd) |
32 | bfd *abfd; | |
e98e6ec1 SC |
33 | { |
34 | struct internal_exec *execp = exec_hdr (abfd); | |
294eaca4 SC |
35 | |
36 | /* Calculate the file positions of the parts of a newly read aout header */ | |
e98e6ec1 SC |
37 | obj_textsec (abfd)->_raw_size = N_TXTSIZE(*execp); |
38 | ||
39 | /* The virtual memory addresses of the sections */ | |
40 | obj_textsec (abfd)->vma = N_TXTADDR(*execp); | |
41 | obj_datasec (abfd)->vma = N_DATADDR(*execp); | |
42 | obj_bsssec (abfd)->vma = N_BSSADDR(*execp); | |
43 | ||
44 | /* The file offsets of the sections */ | |
45 | obj_textsec (abfd)->filepos = N_TXTOFF (*execp); | |
46 | obj_datasec (abfd)->filepos = N_DATOFF (*execp); | |
47 | ||
48 | /* The file offsets of the relocation info */ | |
49 | obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp); | |
50 | obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp); | |
51 | ||
52 | /* The file offsets of the string table and symbol table. */ | |
53 | obj_sym_filepos (abfd) = N_SYMOFF (*execp); | |
54 | obj_str_filepos (abfd) = N_STROFF (*execp); | |
55 | ||
582bc90a | 56 | /* Determine the architecture and machine type of the object file. */ |
e98e6ec1 SC |
57 | #ifdef SET_ARCH_MACH |
58 | SET_ARCH_MACH(abfd, *execp); | |
59 | #else | |
60 | bfd_default_set_arch_mach(abfd, DEFAULT_ARCH, 0); | |
61 | #endif | |
62 | ||
294eaca4 SC |
63 | /* Don't set sizes now -- can't be sure until we know arch & mach. |
64 | Sizes get set in set_sizes callback, later. */ | |
65 | #if 0 | |
e98e6ec1 SC |
66 | adata(abfd).page_size = PAGE_SIZE; |
67 | #ifdef SEGMENT_SIZE | |
68 | adata(abfd).segment_size = SEGMENT_SIZE; | |
69 | #else | |
70 | adata(abfd).segment_size = PAGE_SIZE; | |
71 | #endif | |
72 | adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE; | |
294eaca4 | 73 | #endif |
e98e6ec1 SC |
74 | |
75 | return abfd->xvec; | |
76 | } | |
214f8f23 | 77 | #endif |
e98e6ec1 SC |
78 | |
79 | #ifndef MY_object_p | |
80 | /* Finish up the reading of an a.out file header */ | |
81 | ||
82 | static bfd_target * | |
57a1867e DM |
83 | MY(object_p) (abfd) |
84 | bfd *abfd; | |
e98e6ec1 SC |
85 | { |
86 | struct external_exec exec_bytes; /* Raw exec header from file */ | |
87 | struct internal_exec exec; /* Cleaned-up exec header */ | |
88 | bfd_target *target; | |
89 | ||
90 | if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd) | |
91 | != EXEC_BYTES_SIZE) { | |
4002f18a ILT |
92 | if (bfd_get_error () != bfd_error_system_call) |
93 | bfd_set_error (bfd_error_wrong_format); | |
e98e6ec1 SC |
94 | return 0; |
95 | } | |
96 | ||
3f99570e JK |
97 | #ifdef SWAP_MAGIC |
98 | exec.a_info = SWAP_MAGIC (exec_bytes.e_info); | |
4c3721d5 | 99 | #else |
e98e6ec1 | 100 | exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info); |
3f99570e | 101 | #endif /* SWAP_MAGIC */ |
e98e6ec1 SC |
102 | |
103 | if (N_BADMAG (exec)) return 0; | |
4c3721d5 ILT |
104 | #ifdef MACHTYPE_OK |
105 | if (!(MACHTYPE_OK (N_MACHTYPE (exec)))) return 0; | |
106 | #endif | |
e98e6ec1 SC |
107 | |
108 | NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &exec); | |
109 | target = NAME(aout,some_aout_object_p) (abfd, &exec, MY(callback)); | |
110 | ||
111 | #ifdef ENTRY_CAN_BE_ZERO | |
112 | /* The NEWSOS3 entry-point is/was 0, which (amongst other lossage) | |
113 | * means that it isn't obvious if EXEC_P should be set. | |
114 | * All of the following must be true for an executable: | |
115 | * There must be no relocations, the bfd can be neither an | |
116 | * archive nor an archive element, and the file must be executable. */ | |
117 | ||
118 | if (exec.a_trsize + exec.a_drsize == 0 | |
119 | && bfd_get_format(abfd) == bfd_object && abfd->my_archive == NULL) | |
120 | { | |
121 | struct stat buf; | |
122 | #ifndef S_IXUSR | |
123 | #define S_IXUSR 0100 /* Execute by owner. */ | |
124 | #endif | |
125 | if (stat(abfd->filename, &buf) == 0 && (buf.st_mode & S_IXUSR)) | |
126 | abfd->flags |= EXEC_P; | |
127 | } | |
128 | #endif /* ENTRY_CAN_BE_ZERO */ | |
129 | ||
130 | return target; | |
131 | } | |
132 | #define MY_object_p MY(object_p) | |
133 | #endif | |
134 | ||
135 | ||
136 | #ifndef MY_mkobject | |
137 | static boolean | |
57a1867e DM |
138 | MY(mkobject) (abfd) |
139 | bfd *abfd; | |
e98e6ec1 SC |
140 | { |
141 | if (NAME(aout,mkobject)(abfd) == false) | |
142 | return false; | |
294eaca4 SC |
143 | #if 0 /* Sizes get set in set_sizes callback, later, after we know |
144 | the architecture and machine. */ | |
e98e6ec1 SC |
145 | adata(abfd).page_size = PAGE_SIZE; |
146 | #ifdef SEGMENT_SIZE | |
147 | adata(abfd).segment_size = SEGMENT_SIZE; | |
148 | #else | |
149 | adata(abfd).segment_size = PAGE_SIZE; | |
150 | #endif | |
151 | adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE; | |
294eaca4 | 152 | #endif |
e98e6ec1 SC |
153 | return true; |
154 | } | |
155 | #define MY_mkobject MY(mkobject) | |
156 | #endif | |
157 | ||
158 | /* Write an object file. | |
159 | Section contents have already been written. We write the | |
160 | file header, symbols, and relocation. */ | |
161 | ||
162 | #ifndef MY_write_object_contents | |
163 | static boolean | |
57a1867e DM |
164 | MY(write_object_contents) (abfd) |
165 | bfd *abfd; | |
e98e6ec1 | 166 | { |
e98e6ec1 SC |
167 | struct external_exec exec_bytes; |
168 | struct internal_exec *execp = exec_hdr (abfd); | |
169 | ||
582bc90a PB |
170 | #if CHOOSE_RELOC_SIZE |
171 | CHOOSE_RELOC_SIZE(abfd); | |
172 | #else | |
173 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; | |
174 | #endif | |
175 | ||
e98e6ec1 | 176 | WRITE_HEADERS(abfd, execp); |
582bc90a | 177 | |
e98e6ec1 SC |
178 | return true; |
179 | } | |
180 | #define MY_write_object_contents MY(write_object_contents) | |
181 | #endif | |
182 | ||
294eaca4 SC |
183 | #ifndef MY_set_sizes |
184 | static boolean | |
57a1867e DM |
185 | MY(set_sizes) (abfd) |
186 | bfd *abfd; | |
294eaca4 SC |
187 | { |
188 | adata(abfd).page_size = PAGE_SIZE; | |
189 | #ifdef SEGMENT_SIZE | |
190 | adata(abfd).segment_size = SEGMENT_SIZE; | |
191 | #else | |
192 | adata(abfd).segment_size = PAGE_SIZE; | |
193 | #endif | |
194 | adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE; | |
195 | return true; | |
196 | } | |
197 | #define MY_set_sizes MY(set_sizes) | |
198 | #endif | |
199 | ||
200 | #ifndef MY_backend_data | |
57a1867e DM |
201 | |
202 | #ifndef MY_read_dynamic_symbols | |
203 | #define MY_read_dynamic_symbols 0 | |
204 | #endif | |
205 | #ifndef MY_read_dynamic_relocs | |
206 | #define MY_read_dynamic_relocs 0 | |
207 | #endif | |
208 | ||
294eaca4 SC |
209 | static CONST struct aout_backend_data MY(backend_data) = { |
210 | 0, /* zmagic contiguous */ | |
211 | 0, /* text incl header */ | |
212 | 0, /* text vma? */ | |
213 | MY_set_sizes, | |
1f29e30b | 214 | 0, /* exec header is counted */ |
57a1867e DM |
215 | MY_read_dynamic_symbols, |
216 | MY_read_dynamic_relocs | |
294eaca4 SC |
217 | }; |
218 | #define MY_backend_data &MY(backend_data) | |
219 | #endif | |
220 | ||
4c3721d5 ILT |
221 | #ifndef MY_bfd_final_link |
222 | ||
223 | /* Final link routine. We need to use a call back to get the correct | |
224 | offsets in the output file. */ | |
225 | ||
226 | static void final_link_callback | |
227 | PARAMS ((bfd *, file_ptr *, file_ptr *, file_ptr *)); | |
228 | ||
229 | static void | |
230 | final_link_callback (abfd, ptreloff, pdreloff, psymoff) | |
231 | bfd *abfd; | |
232 | file_ptr *ptreloff; | |
233 | file_ptr *pdreloff; | |
234 | file_ptr *psymoff; | |
235 | { | |
236 | struct internal_exec *execp = exec_hdr (abfd); | |
237 | ||
238 | *ptreloff = N_TRELOFF (*execp); | |
239 | *pdreloff = N_DRELOFF (*execp); | |
240 | *psymoff = N_SYMOFF (*execp); | |
241 | } | |
242 | ||
243 | static boolean | |
244 | MY_bfd_final_link (abfd, info) | |
245 | bfd *abfd; | |
246 | struct bfd_link_info *info; | |
247 | { | |
248 | return NAME(aout,final_link) (abfd, info, final_link_callback); | |
249 | } | |
250 | ||
251 | #endif | |
252 | ||
e98e6ec1 SC |
253 | /* We assume BFD generic archive files. */ |
254 | #ifndef MY_openr_next_archived_file | |
255 | #define MY_openr_next_archived_file bfd_generic_openr_next_archived_file | |
256 | #endif | |
257 | #ifndef MY_generic_stat_arch_elt | |
258 | #define MY_generic_stat_arch_elt bfd_generic_stat_arch_elt | |
259 | #endif | |
260 | #ifndef MY_slurp_armap | |
261 | #define MY_slurp_armap bfd_slurp_bsd_armap | |
262 | #endif | |
263 | #ifndef MY_slurp_extended_name_table | |
582bc90a | 264 | #define MY_slurp_extended_name_table _bfd_slurp_extended_name_table |
e98e6ec1 SC |
265 | #endif |
266 | #ifndef MY_write_armap | |
267 | #define MY_write_armap bsd_write_armap | |
268 | #endif | |
269 | #ifndef MY_truncate_arname | |
270 | #define MY_truncate_arname bfd_bsd_truncate_arname | |
271 | #endif | |
272 | ||
273 | /* No core file defined here -- configure in trad-core.c separately. */ | |
274 | #ifndef MY_core_file_failing_command | |
6812b607 | 275 | #define MY_core_file_failing_command _bfd_nocore_core_file_failing_command |
e98e6ec1 SC |
276 | #endif |
277 | #ifndef MY_core_file_failing_signal | |
6812b607 | 278 | #define MY_core_file_failing_signal _bfd_nocore_core_file_failing_signal |
e98e6ec1 SC |
279 | #endif |
280 | #ifndef MY_core_file_matches_executable_p | |
281 | #define MY_core_file_matches_executable_p \ | |
6812b607 | 282 | _bfd_nocore_core_file_matches_executable_p |
e98e6ec1 SC |
283 | #endif |
284 | #ifndef MY_core_file_p | |
285 | #define MY_core_file_p _bfd_dummy_target | |
286 | #endif | |
287 | ||
288 | #ifndef MY_bfd_debug_info_start | |
289 | #define MY_bfd_debug_info_start bfd_void | |
290 | #endif | |
291 | #ifndef MY_bfd_debug_info_end | |
292 | #define MY_bfd_debug_info_end bfd_void | |
293 | #endif | |
294 | #ifndef MY_bfd_debug_info_accumulate | |
1f29e30b JG |
295 | #define MY_bfd_debug_info_accumulate \ |
296 | (void (*) PARAMS ((bfd*, struct sec *))) bfd_void | |
e98e6ec1 SC |
297 | #endif |
298 | ||
299 | #ifndef MY_core_file_failing_command | |
300 | #define MY_core_file_failing_command NAME(aout,core_file_failing_command) | |
301 | #endif | |
302 | #ifndef MY_core_file_failing_signal | |
303 | #define MY_core_file_failing_signal NAME(aout,core_file_failing_signal) | |
304 | #endif | |
305 | #ifndef MY_core_file_matches_executable_p | |
306 | #define MY_core_file_matches_executable_p NAME(aout,core_file_matches_executable_p) | |
307 | #endif | |
e98e6ec1 SC |
308 | #ifndef MY_set_section_contents |
309 | #define MY_set_section_contents NAME(aout,set_section_contents) | |
310 | #endif | |
311 | #ifndef MY_get_section_contents | |
312 | #define MY_get_section_contents NAME(aout,get_section_contents) | |
313 | #endif | |
314 | #ifndef MY_new_section_hook | |
315 | #define MY_new_section_hook NAME(aout,new_section_hook) | |
316 | #endif | |
317 | #ifndef MY_get_symtab_upper_bound | |
318 | #define MY_get_symtab_upper_bound NAME(aout,get_symtab_upper_bound) | |
319 | #endif | |
320 | #ifndef MY_get_symtab | |
321 | #define MY_get_symtab NAME(aout,get_symtab) | |
322 | #endif | |
323 | #ifndef MY_get_reloc_upper_bound | |
324 | #define MY_get_reloc_upper_bound NAME(aout,get_reloc_upper_bound) | |
325 | #endif | |
326 | #ifndef MY_canonicalize_reloc | |
327 | #define MY_canonicalize_reloc NAME(aout,canonicalize_reloc) | |
328 | #endif | |
329 | #ifndef MY_make_empty_symbol | |
330 | #define MY_make_empty_symbol NAME(aout,make_empty_symbol) | |
331 | #endif | |
332 | #ifndef MY_print_symbol | |
333 | #define MY_print_symbol NAME(aout,print_symbol) | |
334 | #endif | |
4c3721d5 ILT |
335 | #ifndef MY_get_symbol_info |
336 | #define MY_get_symbol_info NAME(aout,get_symbol_info) | |
337 | #endif | |
e98e6ec1 SC |
338 | #ifndef MY_get_lineno |
339 | #define MY_get_lineno NAME(aout,get_lineno) | |
340 | #endif | |
341 | #ifndef MY_set_arch_mach | |
342 | #define MY_set_arch_mach NAME(aout,set_arch_mach) | |
343 | #endif | |
e98e6ec1 SC |
344 | #ifndef MY_find_nearest_line |
345 | #define MY_find_nearest_line NAME(aout,find_nearest_line) | |
346 | #endif | |
e98e6ec1 SC |
347 | #ifndef MY_sizeof_headers |
348 | #define MY_sizeof_headers NAME(aout,sizeof_headers) | |
349 | #endif | |
4c3721d5 ILT |
350 | #ifndef MY_bfd_get_relocated_section_contents |
351 | #define MY_bfd_get_relocated_section_contents \ | |
352 | bfd_generic_get_relocated_section_contents | |
e98e6ec1 | 353 | #endif |
4c3721d5 ILT |
354 | #ifndef MY_bfd_relax_section |
355 | #define MY_bfd_relax_section bfd_generic_relax_section | |
356 | #endif | |
357 | #ifndef MY_bfd_reloc_type_lookup | |
358 | #define MY_bfd_reloc_type_lookup NAME(aout,reloc_type_lookup) | |
e98e6ec1 | 359 | #endif |
4c3721d5 ILT |
360 | #ifndef MY_bfd_make_debug_symbol |
361 | #define MY_bfd_make_debug_symbol 0 | |
e98e6ec1 | 362 | #endif |
4c3721d5 ILT |
363 | #ifndef MY_bfd_link_hash_table_create |
364 | #define MY_bfd_link_hash_table_create NAME(aout,link_hash_table_create) | |
582bc90a | 365 | #endif |
4c3721d5 ILT |
366 | #ifndef MY_bfd_link_add_symbols |
367 | #define MY_bfd_link_add_symbols NAME(aout,link_add_symbols) | |
582bc90a | 368 | #endif |
294eaca4 | 369 | |
9deaaaf1 ILT |
370 | #ifndef MY_bfd_copy_private_section_data |
371 | #define MY_bfd_copy_private_section_data \ | |
6812b607 | 372 | _bfd_generic_bfd_copy_private_section_data |
9deaaaf1 ILT |
373 | #endif |
374 | #ifndef MY_bfd_copy_private_bfd_data | |
6812b607 | 375 | #define MY_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data |
9deaaaf1 ILT |
376 | #endif |
377 | ||
378 | #ifndef MY_bfd_is_local_label | |
379 | #define MY_bfd_is_local_label bfd_generic_is_local_label | |
380 | #endif | |
381 | ||
382 | #ifndef MY_bfd_free_cached_info | |
5c8444f8 ILT |
383 | #define MY_bfd_free_cached_info NAME(aout,bfd_free_cached_info) |
384 | #endif | |
385 | ||
386 | #ifndef MY_close_and_cleanup | |
387 | #define MY_close_and_cleanup MY_bfd_free_cached_info | |
9deaaaf1 ILT |
388 | #endif |
389 | ||
294eaca4 SC |
390 | /* Aout symbols normally have leading underscores */ |
391 | #ifndef MY_symbol_leading_char | |
392 | #define MY_symbol_leading_char '_' | |
582bc90a | 393 | #endif |
e98e6ec1 | 394 | |
4c3721d5 ILT |
395 | /* Aout archives normally use spaces for padding */ |
396 | #ifndef AR_PAD_CHAR | |
397 | #define AR_PAD_CHAR ' ' | |
398 | #endif | |
399 | ||
400 | #ifndef MY_BFD_TARGET | |
e98e6ec1 SC |
401 | bfd_target MY(vec) = |
402 | { | |
403 | TARGETNAME, /* name */ | |
404 | bfd_target_aout_flavour, | |
582bc90a PB |
405 | #ifdef TARGET_IS_BIG_ENDIAN_P |
406 | true, /* target byte order (big) */ | |
407 | true, /* target headers byte order (big) */ | |
408 | #else | |
409 | false, /* target byte order (little) */ | |
410 | false, /* target headers byte order (little) */ | |
411 | #endif | |
e98e6ec1 SC |
412 | (HAS_RELOC | EXEC_P | /* object flags */ |
413 | HAS_LINENO | HAS_DEBUG | | |
57a1867e | 414 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED), |
e98e6ec1 | 415 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
294eaca4 | 416 | MY_symbol_leading_char, |
4c3721d5 | 417 | AR_PAD_CHAR, /* ar_pad_char */ |
582bc90a | 418 | 15, /* ar_max_namelen */ |
4c3721d5 | 419 | 3, /* minimum alignment */ |
e98e6ec1 | 420 | #ifdef TARGET_IS_BIG_ENDIAN_P |
4c3721d5 ILT |
421 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
422 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
423 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
424 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
425 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
426 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
e98e6ec1 | 427 | #else |
4c3721d5 ILT |
428 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
429 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
430 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
431 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
432 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
433 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
e98e6ec1 SC |
434 | #endif |
435 | {_bfd_dummy_target, MY_object_p, /* bfd_check_format */ | |
436 | bfd_generic_archive_p, MY_core_file_p}, | |
437 | {bfd_false, MY_mkobject, /* bfd_set_format */ | |
438 | _bfd_generic_mkarchive, bfd_false}, | |
439 | {bfd_false, MY_write_object_contents, /* bfd_write_contents */ | |
440 | _bfd_write_archive_contents, bfd_false}, | |
441 | ||
6812b607 ILT |
442 | BFD_JUMP_TABLE_GENERIC (MY), |
443 | BFD_JUMP_TABLE_COPY (MY), | |
444 | BFD_JUMP_TABLE_CORE (MY), | |
445 | BFD_JUMP_TABLE_ARCHIVE (MY), | |
446 | BFD_JUMP_TABLE_SYMBOLS (MY), | |
447 | BFD_JUMP_TABLE_RELOCS (MY), | |
448 | BFD_JUMP_TABLE_WRITE (MY), | |
449 | BFD_JUMP_TABLE_LINK (MY), | |
450 | ||
582bc90a | 451 | (PTR) MY_backend_data, |
e98e6ec1 | 452 | }; |
4c3721d5 | 453 | #endif /* MY_BFD_TARGET */ |