Commit | Line | Data |
---|---|---|
ce3c775b | 1 | /* Plugin support for BFD. |
2571583a | 2 | Copyright (C) 2009-2017 Free Software Foundation, Inc. |
ce3c775b NC |
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 3 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., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
691bf19c | 21 | #include "sysdep.h" |
98950613 AM |
22 | #include "bfd.h" |
23 | ||
24 | #if BFD_SUPPORTS_PLUGINS | |
25 | ||
ce3c775b | 26 | #include <assert.h> |
17d5dae2 | 27 | #ifdef HAVE_DLFCN_H |
ce3c775b | 28 | #include <dlfcn.h> |
17d5dae2 KT |
29 | #elif defined (HAVE_WINDOWS_H) |
30 | #include <windows.h> | |
31 | #else | |
32 | #error Unknown how to handle dynamic-load-libraries. | |
33 | #endif | |
ce3c775b NC |
34 | #include <stdarg.h> |
35 | #include "plugin-api.h" | |
ce3c775b NC |
36 | #include "plugin.h" |
37 | #include "libbfd.h" | |
38 | #include "libiberty.h" | |
39 | #include <dirent.h> | |
40 | ||
17d5dae2 KT |
41 | #if !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H) |
42 | ||
43 | #define RTLD_NOW 0 /* Dummy value. */ | |
44 | ||
45 | static void * | |
46 | dlopen (const char *file, int mode ATTRIBUTE_UNUSED) | |
47 | { | |
48 | return LoadLibrary (file); | |
49 | } | |
50 | ||
51 | static void * | |
52 | dlsym (void *handle, const char *name) | |
53 | { | |
54 | return GetProcAddress (handle, name); | |
55 | } | |
56 | ||
57 | static int ATTRIBUTE_UNUSED | |
58 | dlclose (void *handle) | |
59 | { | |
60 | FreeLibrary (handle); | |
61 | return 0; | |
62 | } | |
63 | ||
64 | static const char * | |
65 | dlerror (void) | |
66 | { | |
67 | return "Unable to load DLL."; | |
68 | } | |
69 | ||
70 | #endif /* !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H) */ | |
71 | ||
07d6d2b8 AM |
72 | #define bfd_plugin_close_and_cleanup _bfd_generic_close_and_cleanup |
73 | #define bfd_plugin_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
74 | #define bfd_plugin_new_section_hook _bfd_generic_new_section_hook | |
75 | #define bfd_plugin_get_section_contents _bfd_generic_get_section_contents | |
ce3c775b | 76 | #define bfd_plugin_get_section_contents_in_window _bfd_generic_get_section_contents_in_window |
07d6d2b8 AM |
77 | #define bfd_plugin_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data |
78 | #define bfd_plugin_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data | |
79 | #define bfd_plugin_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data | |
80 | #define bfd_plugin_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
ce3c775b | 81 | #define bfd_plugin_core_file_matches_executable_p generic_core_file_matches_executable_p |
07d6d2b8 AM |
82 | #define bfd_plugin_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name |
83 | #define bfd_plugin_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) | |
84 | #define bfd_plugin_get_lineno _bfd_nosymbols_get_lineno | |
85 | #define bfd_plugin_find_nearest_line _bfd_nosymbols_find_nearest_line | |
86 | #define bfd_plugin_find_line _bfd_nosymbols_find_line | |
87 | #define bfd_plugin_find_inliner_info _bfd_nosymbols_find_inliner_info | |
60bb06bc | 88 | #define bfd_plugin_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string |
07d6d2b8 AM |
89 | #define bfd_plugin_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol |
90 | #define bfd_plugin_read_minisymbols _bfd_generic_read_minisymbols | |
91 | #define bfd_plugin_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
92 | #define bfd_plugin_set_arch_mach bfd_default_set_arch_mach | |
93 | #define bfd_plugin_set_section_contents _bfd_generic_set_section_contents | |
ce3c775b | 94 | #define bfd_plugin_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
07d6d2b8 AM |
95 | #define bfd_plugin_bfd_relax_section bfd_generic_relax_section |
96 | #define bfd_plugin_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
97 | #define bfd_plugin_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
98 | #define bfd_plugin_bfd_link_just_syms _bfd_generic_link_just_syms | |
99 | #define bfd_plugin_bfd_final_link _bfd_generic_final_link | |
100 | #define bfd_plugin_bfd_link_split_section _bfd_generic_link_split_section | |
101 | #define bfd_plugin_bfd_gc_sections bfd_generic_gc_sections | |
102 | #define bfd_plugin_bfd_lookup_section_flags bfd_generic_lookup_section_flags | |
103 | #define bfd_plugin_bfd_merge_sections bfd_generic_merge_sections | |
104 | #define bfd_plugin_bfd_is_group_section bfd_generic_is_group_section | |
105 | #define bfd_plugin_bfd_discard_group bfd_generic_discard_group | |
106 | #define bfd_plugin_section_already_linked _bfd_generic_section_already_linked | |
107 | #define bfd_plugin_bfd_define_common_symbol bfd_generic_define_common_symbol | |
108 | #define bfd_plugin_bfd_define_start_stop bfd_generic_define_start_stop | |
69a630b5 | 109 | #define bfd_plugin_bfd_copy_link_hash_symbol_type _bfd_generic_copy_link_hash_symbol_type |
07d6d2b8 | 110 | #define bfd_plugin_bfd_link_check_relocs _bfd_generic_link_check_relocs |
ce3c775b NC |
111 | |
112 | static enum ld_plugin_status | |
113 | message (int level ATTRIBUTE_UNUSED, | |
114 | const char * format, ...) | |
115 | { | |
116 | va_list args; | |
117 | va_start (args, format); | |
118 | printf ("bfd plugin: "); | |
119 | vprintf (format, args); | |
d9b21463 | 120 | putchar ('\n'); |
ce3c775b NC |
121 | va_end (args); |
122 | return LDPS_OK; | |
123 | } | |
124 | ||
125 | /* Register a claim-file handler. */ | |
126 | static ld_plugin_claim_file_handler claim_file; | |
127 | ||
128 | static enum ld_plugin_status | |
129 | register_claim_file (ld_plugin_claim_file_handler handler) | |
130 | { | |
131 | claim_file = handler; | |
132 | return LDPS_OK; | |
133 | } | |
134 | ||
135 | static enum ld_plugin_status | |
136 | add_symbols (void * handle, | |
137 | int nsyms, | |
138 | const struct ld_plugin_symbol * syms) | |
139 | { | |
140 | bfd *abfd = handle; | |
141 | struct plugin_data_struct *plugin_data = | |
5bb3703f | 142 | bfd_alloc (abfd, sizeof (plugin_data_struct)); |
ce3c775b NC |
143 | |
144 | plugin_data->nsyms = nsyms; | |
145 | plugin_data->syms = syms; | |
146 | ||
147 | if (nsyms != 0) | |
148 | abfd->flags |= HAS_SYMS; | |
149 | ||
150 | abfd->tdata.plugin_data = plugin_data; | |
151 | return LDPS_OK; | |
152 | } | |
153 | ||
fc579192 NC |
154 | static const char *plugin_program_name; |
155 | ||
156 | void | |
157 | bfd_plugin_set_program_name (const char *program_name) | |
158 | { | |
159 | plugin_program_name = program_name; | |
160 | } | |
ce3c775b | 161 | |
7d0b9ebc AM |
162 | int |
163 | bfd_plugin_open_input (bfd *ibfd, struct ld_plugin_input_file *file) | |
ce3c775b | 164 | { |
e44f5bef MT |
165 | bfd *iobfd; |
166 | ||
7d0b9ebc AM |
167 | iobfd = ibfd; |
168 | if (ibfd->my_archive && !bfd_is_thin_archive (ibfd->my_archive)) | |
169 | iobfd = ibfd->my_archive; | |
170 | file->name = iobfd->filename; | |
e44f5bef MT |
171 | |
172 | if (!iobfd->iostream && !bfd_open_file (iobfd)) | |
173 | return 0; | |
174 | ||
7d0b9ebc | 175 | file->fd = fileno ((FILE *) iobfd->iostream); |
e44f5bef | 176 | |
7d0b9ebc | 177 | if (iobfd == ibfd) |
e44f5bef MT |
178 | { |
179 | struct stat stat_buf; | |
7d0b9ebc | 180 | if (fstat (file->fd, &stat_buf)) |
07d6d2b8 | 181 | return 0; |
7d0b9ebc AM |
182 | file->offset = 0; |
183 | file->filesize = stat_buf.st_size; | |
184 | } | |
185 | else | |
186 | { | |
187 | file->offset = ibfd->origin; | |
188 | file->filesize = arelt_size (ibfd); | |
e44f5bef | 189 | } |
7d0b9ebc AM |
190 | return 1; |
191 | } | |
192 | ||
193 | static int | |
194 | try_claim (bfd *abfd) | |
195 | { | |
196 | int claimed = 0; | |
197 | struct ld_plugin_input_file file; | |
e44f5bef | 198 | |
7d0b9ebc AM |
199 | if (!bfd_plugin_open_input (abfd, &file)) |
200 | return 0; | |
e44f5bef | 201 | file.handle = abfd; |
7d0b9ebc | 202 | off_t cur_offset = lseek (file.fd, 0, SEEK_CUR); |
e44f5bef | 203 | claim_file (&file, &claimed); |
7d0b9ebc AM |
204 | lseek (file.fd, cur_offset, SEEK_SET); |
205 | return claimed; | |
e44f5bef MT |
206 | } |
207 | ||
208 | static int | |
5ae0078c | 209 | try_load_plugin (const char *pname, bfd *abfd, int *has_plugin_p) |
e44f5bef MT |
210 | { |
211 | void *plugin_handle; | |
6f4c0a42 | 212 | struct ld_plugin_tv tv[4]; |
ce3c775b NC |
213 | int i; |
214 | ld_plugin_onload onload; | |
215 | enum ld_plugin_status status; | |
216 | ||
5ae0078c L |
217 | *has_plugin_p = 0; |
218 | ||
ce3c775b NC |
219 | plugin_handle = dlopen (pname, RTLD_NOW); |
220 | if (!plugin_handle) | |
221 | { | |
4eca0228 | 222 | _bfd_error_handler ("%s\n", dlerror ()); |
ce3c775b NC |
223 | return 0; |
224 | } | |
225 | ||
226 | onload = dlsym (plugin_handle, "onload"); | |
227 | if (!onload) | |
228 | goto err; | |
229 | ||
230 | i = 0; | |
231 | tv[i].tv_tag = LDPT_MESSAGE; | |
232 | tv[i].tv_u.tv_message = message; | |
233 | ||
234 | ++i; | |
235 | tv[i].tv_tag = LDPT_REGISTER_CLAIM_FILE_HOOK; | |
236 | tv[i].tv_u.tv_register_claim_file = register_claim_file; | |
237 | ||
238 | ++i; | |
239 | tv[i].tv_tag = LDPT_ADD_SYMBOLS; | |
240 | tv[i].tv_u.tv_add_symbols = add_symbols; | |
241 | ||
242 | ++i; | |
243 | tv[i].tv_tag = LDPT_NULL; | |
244 | tv[i].tv_u.tv_val = 0; | |
245 | ||
246 | status = (*onload)(tv); | |
247 | ||
248 | if (status != LDPS_OK) | |
249 | goto err; | |
250 | ||
5ae0078c L |
251 | *has_plugin_p = 1; |
252 | ||
253 | abfd->plugin_format = bfd_plugin_no; | |
254 | ||
ce3c775b NC |
255 | if (!claim_file) |
256 | goto err; | |
257 | ||
e44f5bef MT |
258 | if (!try_claim (abfd)) |
259 | goto err; | |
260 | ||
5ae0078c L |
261 | abfd->plugin_format = bfd_plugin_yes; |
262 | ||
ce3c775b NC |
263 | return 1; |
264 | ||
265 | err: | |
ce3c775b NC |
266 | return 0; |
267 | } | |
268 | ||
5ae0078c L |
269 | /* There may be plugin libraries in lib/bfd-plugins. */ |
270 | ||
271 | static int has_plugin = -1; | |
272 | ||
273 | static const bfd_target *(*ld_plugin_object_p) (bfd *); | |
274 | ||
ce3c775b NC |
275 | static const char *plugin_name; |
276 | ||
277 | void | |
278 | bfd_plugin_set_plugin (const char *p) | |
279 | { | |
280 | plugin_name = p; | |
5ae0078c L |
281 | has_plugin = p != NULL; |
282 | } | |
283 | ||
284 | /* Return TRUE if a plugin library is used. */ | |
285 | ||
286 | bfd_boolean | |
287 | bfd_plugin_specified_p (void) | |
288 | { | |
289 | return has_plugin > 0; | |
290 | } | |
291 | ||
7dc3990e L |
292 | /* Return TRUE if ABFD can be claimed by linker LTO plugin. */ |
293 | ||
294 | bfd_boolean | |
295 | bfd_link_plugin_object_p (bfd *abfd) | |
296 | { | |
297 | if (ld_plugin_object_p) | |
298 | return ld_plugin_object_p (abfd) != NULL; | |
299 | return FALSE; | |
300 | } | |
301 | ||
5ae0078c L |
302 | extern const bfd_target plugin_vec; |
303 | ||
304 | /* Return TRUE if TARGET is a pointer to plugin_vec. */ | |
305 | ||
306 | bfd_boolean | |
307 | bfd_plugin_target_p (const bfd_target *target) | |
308 | { | |
309 | return target == &plugin_vec; | |
310 | } | |
311 | ||
312 | /* Register OBJECT_P to be used by bfd_plugin_object_p. */ | |
313 | ||
314 | void | |
315 | register_ld_plugin_object_p (const bfd_target *(*object_p) (bfd *)) | |
316 | { | |
317 | ld_plugin_object_p = object_p; | |
ce3c775b NC |
318 | } |
319 | ||
320 | static int | |
e44f5bef | 321 | load_plugin (bfd *abfd) |
ce3c775b NC |
322 | { |
323 | char *plugin_dir; | |
324 | char *p; | |
325 | DIR *d; | |
326 | struct dirent *ent; | |
327 | int found = 0; | |
328 | ||
5ae0078c L |
329 | if (!has_plugin) |
330 | return found; | |
331 | ||
ce3c775b | 332 | if (plugin_name) |
5ae0078c | 333 | return try_load_plugin (plugin_name, abfd, &has_plugin); |
ce3c775b | 334 | |
fc579192 | 335 | if (plugin_program_name == NULL) |
5ae0078c | 336 | return found; |
ce3c775b NC |
337 | |
338 | plugin_dir = concat (BINDIR, "/../lib/bfd-plugins", NULL); | |
fc579192 | 339 | p = make_relative_prefix (plugin_program_name, |
ce3c775b NC |
340 | BINDIR, |
341 | plugin_dir); | |
342 | free (plugin_dir); | |
343 | plugin_dir = NULL; | |
344 | ||
345 | d = opendir (p); | |
346 | if (!d) | |
347 | goto out; | |
348 | ||
349 | while ((ent = readdir (d))) | |
350 | { | |
351 | char *full_name; | |
c41ba836 | 352 | struct stat s; |
5ae0078c | 353 | int valid_plugin; |
ce3c775b NC |
354 | |
355 | full_name = concat (p, "/", ent->d_name, NULL); | |
c41ba836 | 356 | if (stat(full_name, &s) == 0 && S_ISREG (s.st_mode)) |
5ae0078c L |
357 | found = try_load_plugin (full_name, abfd, &valid_plugin); |
358 | if (has_plugin <= 0) | |
359 | has_plugin = valid_plugin; | |
ce3c775b NC |
360 | free (full_name); |
361 | if (found) | |
362 | break; | |
363 | } | |
364 | ||
365 | out: | |
366 | free (p); | |
367 | if (d) | |
368 | closedir (d); | |
369 | ||
370 | return found; | |
371 | } | |
372 | ||
373 | ||
374 | static const bfd_target * | |
375 | bfd_plugin_object_p (bfd *abfd) | |
376 | { | |
5ae0078c L |
377 | if (ld_plugin_object_p) |
378 | return ld_plugin_object_p (abfd); | |
379 | ||
49f30d83 | 380 | if (abfd->plugin_format == bfd_plugin_unknown && !load_plugin (abfd)) |
ce3c775b NC |
381 | return NULL; |
382 | ||
5ae0078c | 383 | return abfd->plugin_format == bfd_plugin_yes ? abfd->xvec : NULL; |
ce3c775b NC |
384 | } |
385 | ||
386 | /* Copy any private info we understand from the input bfd | |
387 | to the output bfd. */ | |
388 | ||
389 | static bfd_boolean | |
390 | bfd_plugin_bfd_copy_private_bfd_data (bfd *ibfd ATTRIBUTE_UNUSED, | |
391 | bfd *obfd ATTRIBUTE_UNUSED) | |
392 | { | |
393 | BFD_ASSERT (0); | |
394 | return TRUE; | |
395 | } | |
396 | ||
397 | /* Copy any private info we understand from the input section | |
398 | to the output section. */ | |
399 | ||
400 | static bfd_boolean | |
401 | bfd_plugin_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED, | |
402 | asection *isection ATTRIBUTE_UNUSED, | |
403 | bfd *obfd ATTRIBUTE_UNUSED, | |
404 | asection *osection ATTRIBUTE_UNUSED) | |
405 | { | |
406 | BFD_ASSERT (0); | |
407 | return TRUE; | |
408 | } | |
409 | ||
410 | /* Copy any private info we understand from the input symbol | |
411 | to the output symbol. */ | |
412 | ||
413 | static bfd_boolean | |
414 | bfd_plugin_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, | |
415 | asymbol *isymbol ATTRIBUTE_UNUSED, | |
416 | bfd *obfd ATTRIBUTE_UNUSED, | |
417 | asymbol *osymbol ATTRIBUTE_UNUSED) | |
418 | { | |
419 | BFD_ASSERT (0); | |
420 | return TRUE; | |
421 | } | |
422 | ||
423 | static bfd_boolean | |
424 | bfd_plugin_bfd_print_private_bfd_data (bfd *abfd ATTRIBUTE_UNUSED, PTR ptr ATTRIBUTE_UNUSED) | |
425 | { | |
426 | BFD_ASSERT (0); | |
427 | return TRUE; | |
428 | } | |
429 | ||
430 | static char * | |
431 | bfd_plugin_core_file_failing_command (bfd *abfd ATTRIBUTE_UNUSED) | |
432 | { | |
433 | BFD_ASSERT (0); | |
434 | return NULL; | |
435 | } | |
436 | ||
437 | static int | |
438 | bfd_plugin_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) | |
261b8d08 PA |
439 | { |
440 | BFD_ASSERT (0); | |
441 | return 0; | |
442 | } | |
443 | ||
444 | static int | |
445 | bfd_plugin_core_file_pid (bfd *abfd ATTRIBUTE_UNUSED) | |
ce3c775b NC |
446 | { |
447 | BFD_ASSERT (0); | |
448 | return 0; | |
449 | } | |
450 | ||
451 | static long | |
452 | bfd_plugin_get_symtab_upper_bound (bfd *abfd) | |
453 | { | |
454 | struct plugin_data_struct *plugin_data = abfd->tdata.plugin_data; | |
455 | long nsyms = plugin_data->nsyms; | |
456 | ||
457 | BFD_ASSERT (nsyms >= 0); | |
458 | ||
459 | return ((nsyms + 1) * sizeof (asymbol *)); | |
460 | } | |
461 | ||
462 | static flagword | |
463 | convert_flags (const struct ld_plugin_symbol *sym) | |
464 | { | |
465 | switch (sym->def) | |
68ffbac6 | 466 | { |
ce3c775b NC |
467 | case LDPK_DEF: |
468 | case LDPK_COMMON: | |
469 | case LDPK_UNDEF: | |
470 | return BSF_GLOBAL; | |
471 | ||
472 | case LDPK_WEAKUNDEF: | |
473 | case LDPK_WEAKDEF: | |
474 | return BSF_GLOBAL | BSF_WEAK; | |
475 | ||
476 | default: | |
477 | BFD_ASSERT (0); | |
478 | return 0; | |
479 | } | |
480 | } | |
481 | ||
482 | static long | |
483 | bfd_plugin_canonicalize_symtab (bfd *abfd, | |
484 | asymbol **alocation) | |
485 | { | |
486 | struct plugin_data_struct *plugin_data = abfd->tdata.plugin_data; | |
487 | long nsyms = plugin_data->nsyms; | |
488 | const struct ld_plugin_symbol *syms = plugin_data->syms; | |
489 | static asection fake_section; | |
490 | static asection fake_common_section; | |
491 | int i; | |
492 | ||
493 | fake_section.name = ".text"; | |
494 | fake_common_section.flags = SEC_IS_COMMON; | |
495 | ||
496 | for (i = 0; i < nsyms; i++) | |
497 | { | |
68ffbac6 | 498 | asymbol *s = bfd_alloc (abfd, sizeof (asymbol)); |
ce3c775b NC |
499 | |
500 | BFD_ASSERT (s); | |
501 | alocation[i] = s; | |
502 | ||
503 | s->the_bfd = abfd; | |
504 | s->name = syms[i].name; | |
505 | s->value = 0; | |
506 | s->flags = convert_flags (&syms[i]); | |
507 | switch (syms[i].def) | |
508 | { | |
509 | case LDPK_COMMON: | |
510 | s->section = &fake_common_section; | |
511 | break; | |
512 | case LDPK_UNDEF: | |
513 | case LDPK_WEAKUNDEF: | |
514 | s->section = bfd_und_section_ptr; | |
515 | break; | |
516 | case LDPK_DEF: | |
517 | case LDPK_WEAKDEF: | |
518 | s->section = &fake_section; | |
519 | break; | |
520 | default: | |
521 | BFD_ASSERT (0); | |
522 | } | |
523 | ||
524 | s->udata.p = (void *) &syms[i]; | |
525 | } | |
526 | ||
527 | return nsyms; | |
528 | } | |
529 | ||
530 | static void | |
531 | bfd_plugin_print_symbol (bfd *abfd ATTRIBUTE_UNUSED, | |
532 | PTR afile ATTRIBUTE_UNUSED, | |
533 | asymbol *symbol ATTRIBUTE_UNUSED, | |
534 | bfd_print_symbol_type how ATTRIBUTE_UNUSED) | |
535 | { | |
536 | BFD_ASSERT (0); | |
537 | } | |
538 | ||
539 | static void | |
540 | bfd_plugin_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, | |
541 | asymbol *symbol, | |
542 | symbol_info *ret) | |
543 | { | |
544 | bfd_symbol_info (symbol, ret); | |
545 | } | |
546 | ||
547 | /* Make an empty symbol. */ | |
548 | ||
549 | static asymbol * | |
550 | bfd_plugin_make_empty_symbol (bfd *abfd) | |
551 | { | |
d3ce72d0 NC |
552 | asymbol *new_symbol = bfd_zalloc (abfd, sizeof (asymbol)); |
553 | if (new_symbol == NULL) | |
554 | return new_symbol; | |
555 | new_symbol->the_bfd = abfd; | |
556 | return new_symbol; | |
ce3c775b NC |
557 | } |
558 | ||
559 | static int | |
560 | bfd_plugin_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, | |
561 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
562 | { | |
563 | BFD_ASSERT (0); | |
564 | return 0; | |
565 | } | |
566 | ||
ce3c775b NC |
567 | const bfd_target plugin_vec = |
568 | { | |
569 | "plugin", /* Name. */ | |
570 | bfd_target_unknown_flavour, | |
571 | BFD_ENDIAN_LITTLE, /* Target byte order. */ | |
572 | BFD_ENDIAN_LITTLE, /* Target headers byte order. */ | |
573 | (HAS_RELOC | EXEC_P | /* Object flags. */ | |
574 | HAS_LINENO | HAS_DEBUG | | |
575 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED), | |
576 | (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | |
577 | | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */ | |
578 | 0, /* symbol_leading_char. */ | |
579 | '/', /* ar_pad_char. */ | |
580 | 15, /* ar_max_namelen. */ | |
64bfc258 | 581 | 255, /* match priority. */ |
ce3c775b NC |
582 | |
583 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
584 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
585 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
586 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
587 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
588 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
589 | ||
590 | { /* bfd_check_format. */ | |
591 | _bfd_dummy_target, | |
592 | bfd_plugin_object_p, | |
593 | bfd_generic_archive_p, | |
594 | _bfd_dummy_target | |
595 | }, | |
596 | { /* bfd_set_format. */ | |
597 | bfd_false, | |
4846b70a | 598 | bfd_false, |
ce3c775b NC |
599 | _bfd_generic_mkarchive, |
600 | bfd_false, | |
601 | }, | |
602 | { /* bfd_write_contents. */ | |
603 | bfd_false, | |
604 | bfd_false, | |
605 | _bfd_write_archive_contents, | |
606 | bfd_false, | |
607 | }, | |
608 | ||
609 | BFD_JUMP_TABLE_GENERIC (bfd_plugin), | |
610 | BFD_JUMP_TABLE_COPY (bfd_plugin), | |
611 | BFD_JUMP_TABLE_CORE (bfd_plugin), | |
e6cc316a L |
612 | #ifdef USE_64_BIT_ARCHIVE |
613 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit), | |
614 | #else | |
ce3c775b | 615 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), |
e6cc316a | 616 | #endif |
ce3c775b NC |
617 | BFD_JUMP_TABLE_SYMBOLS (bfd_plugin), |
618 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), | |
619 | BFD_JUMP_TABLE_WRITE (bfd_plugin), | |
620 | BFD_JUMP_TABLE_LINK (bfd_plugin), | |
621 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
622 | ||
623 | NULL, | |
624 | ||
07d6d2b8 | 625 | NULL /* backend_data. */ |
ce3c775b | 626 | }; |
98950613 | 627 | #endif /* BFD_SUPPORTS_PLUGIN */ |