Commit | Line | Data |
---|---|---|
ce3c775b | 1 | /* Plugin support for BFD. |
82704155 | 2 | Copyright (C) 2009-2019 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 | 82 | #define bfd_plugin_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name |
d00dd7dc | 83 | #define bfd_plugin_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false |
07d6d2b8 AM |
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 | |
34a87bb0 | 108 | #define bfd_plugin_bfd_link_hide_symbol _bfd_generic_link_hide_symbol |
07d6d2b8 | 109 | #define bfd_plugin_bfd_define_start_stop bfd_generic_define_start_stop |
69a630b5 | 110 | #define bfd_plugin_bfd_copy_link_hash_symbol_type _bfd_generic_copy_link_hash_symbol_type |
07d6d2b8 | 111 | #define bfd_plugin_bfd_link_check_relocs _bfd_generic_link_check_relocs |
ce3c775b NC |
112 | |
113 | static enum ld_plugin_status | |
114 | message (int level ATTRIBUTE_UNUSED, | |
115 | const char * format, ...) | |
116 | { | |
117 | va_list args; | |
118 | va_start (args, format); | |
119 | printf ("bfd plugin: "); | |
120 | vprintf (format, args); | |
d9b21463 | 121 | putchar ('\n'); |
ce3c775b NC |
122 | va_end (args); |
123 | return LDPS_OK; | |
124 | } | |
125 | ||
126 | /* Register a claim-file handler. */ | |
103da91b | 127 | static ld_plugin_claim_file_handler claim_file = NULL; |
ce3c775b NC |
128 | |
129 | static enum ld_plugin_status | |
130 | register_claim_file (ld_plugin_claim_file_handler handler) | |
131 | { | |
132 | claim_file = handler; | |
133 | return LDPS_OK; | |
134 | } | |
135 | ||
136 | static enum ld_plugin_status | |
137 | add_symbols (void * handle, | |
138 | int nsyms, | |
139 | const struct ld_plugin_symbol * syms) | |
140 | { | |
141 | bfd *abfd = handle; | |
142 | struct plugin_data_struct *plugin_data = | |
5bb3703f | 143 | bfd_alloc (abfd, sizeof (plugin_data_struct)); |
ce3c775b NC |
144 | |
145 | plugin_data->nsyms = nsyms; | |
146 | plugin_data->syms = syms; | |
147 | ||
148 | if (nsyms != 0) | |
149 | abfd->flags |= HAS_SYMS; | |
150 | ||
151 | abfd->tdata.plugin_data = plugin_data; | |
152 | return LDPS_OK; | |
153 | } | |
154 | ||
fc579192 NC |
155 | static const char *plugin_program_name; |
156 | ||
157 | void | |
158 | bfd_plugin_set_program_name (const char *program_name) | |
159 | { | |
160 | plugin_program_name = program_name; | |
161 | } | |
ce3c775b | 162 | |
7d0b9ebc AM |
163 | int |
164 | bfd_plugin_open_input (bfd *ibfd, struct ld_plugin_input_file *file) | |
ce3c775b | 165 | { |
e44f5bef MT |
166 | bfd *iobfd; |
167 | ||
7d0b9ebc | 168 | iobfd = ibfd; |
27b07675 AM |
169 | while (iobfd->my_archive |
170 | && !bfd_is_thin_archive (iobfd->my_archive)) | |
171 | iobfd = iobfd->my_archive; | |
7d0b9ebc | 172 | file->name = iobfd->filename; |
e44f5bef MT |
173 | |
174 | if (!iobfd->iostream && !bfd_open_file (iobfd)) | |
175 | return 0; | |
176 | ||
27b07675 AM |
177 | /* The plugin API expects that the file descriptor won't be closed |
178 | and reused as done by the bfd file cache. So open it again. | |
179 | dup isn't good enough. plugin IO uses lseek/read while BFD uses | |
180 | fseek/fread. It isn't wise to mix the unistd and stdio calls on | |
181 | the same underlying file descriptor. */ | |
182 | file->fd = open (file->name, O_RDONLY | O_BINARY); | |
183 | if (file->fd < 0) | |
184 | return 0; | |
e44f5bef | 185 | |
7d0b9ebc | 186 | if (iobfd == ibfd) |
e44f5bef MT |
187 | { |
188 | struct stat stat_buf; | |
103da91b | 189 | |
7d0b9ebc | 190 | if (fstat (file->fd, &stat_buf)) |
103da91b NC |
191 | { |
192 | close(file->fd); | |
193 | return 0; | |
194 | } | |
195 | ||
7d0b9ebc AM |
196 | file->offset = 0; |
197 | file->filesize = stat_buf.st_size; | |
198 | } | |
199 | else | |
200 | { | |
201 | file->offset = ibfd->origin; | |
202 | file->filesize = arelt_size (ibfd); | |
e44f5bef | 203 | } |
7d0b9ebc AM |
204 | return 1; |
205 | } | |
206 | ||
207 | static int | |
208 | try_claim (bfd *abfd) | |
209 | { | |
210 | int claimed = 0; | |
211 | struct ld_plugin_input_file file; | |
e44f5bef | 212 | |
27b07675 | 213 | file.handle = abfd; |
7d0b9ebc AM |
214 | if (!bfd_plugin_open_input (abfd, &file)) |
215 | return 0; | |
103da91b NC |
216 | if (claim_file) |
217 | claim_file (&file, &claimed); | |
218 | close (file.fd); | |
7d0b9ebc | 219 | return claimed; |
e44f5bef MT |
220 | } |
221 | ||
b0ceb98a Z |
222 | struct plugin_list_entry |
223 | { | |
224 | void * handle; | |
225 | ld_plugin_claim_file_handler claim_file; | |
226 | struct plugin_list_entry * next; | |
227 | }; | |
228 | ||
229 | static struct plugin_list_entry * plugin_list = NULL; | |
230 | ||
e44f5bef | 231 | static int |
5ae0078c | 232 | try_load_plugin (const char *pname, bfd *abfd, int *has_plugin_p) |
e44f5bef | 233 | { |
103da91b | 234 | void *plugin_handle = NULL; |
6f4c0a42 | 235 | struct ld_plugin_tv tv[4]; |
ce3c775b NC |
236 | int i; |
237 | ld_plugin_onload onload; | |
238 | enum ld_plugin_status status; | |
b0ceb98a | 239 | struct plugin_list_entry *plugin_list_iter; |
103da91b | 240 | |
5ae0078c L |
241 | *has_plugin_p = 0; |
242 | ||
ce3c775b NC |
243 | plugin_handle = dlopen (pname, RTLD_NOW); |
244 | if (!plugin_handle) | |
245 | { | |
4eca0228 | 246 | _bfd_error_handler ("%s\n", dlerror ()); |
ce3c775b NC |
247 | return 0; |
248 | } | |
249 | ||
b0ceb98a Z |
250 | for (plugin_list_iter = plugin_list; |
251 | plugin_list_iter; | |
252 | plugin_list_iter = plugin_list_iter->next) | |
253 | { | |
254 | if (plugin_handle == plugin_list_iter->handle) | |
4b24dd1a AM |
255 | { |
256 | dlclose (plugin_handle); | |
257 | if (!plugin_list_iter->claim_file) | |
258 | return 0; | |
259 | ||
260 | register_claim_file (plugin_list_iter->claim_file); | |
261 | goto have_claim_file; | |
262 | } | |
b0ceb98a Z |
263 | } |
264 | ||
265 | plugin_list_iter = (struct plugin_list_entry *) xmalloc (sizeof *plugin_list_iter); | |
266 | plugin_list_iter->handle = plugin_handle; | |
267 | plugin_list_iter->claim_file = NULL; | |
268 | plugin_list_iter->next = plugin_list; | |
269 | plugin_list = plugin_list_iter; | |
270 | ||
ce3c775b NC |
271 | onload = dlsym (plugin_handle, "onload"); |
272 | if (!onload) | |
b0ceb98a | 273 | return 0; |
ce3c775b NC |
274 | |
275 | i = 0; | |
276 | tv[i].tv_tag = LDPT_MESSAGE; | |
277 | tv[i].tv_u.tv_message = message; | |
278 | ||
279 | ++i; | |
280 | tv[i].tv_tag = LDPT_REGISTER_CLAIM_FILE_HOOK; | |
281 | tv[i].tv_u.tv_register_claim_file = register_claim_file; | |
282 | ||
283 | ++i; | |
284 | tv[i].tv_tag = LDPT_ADD_SYMBOLS; | |
285 | tv[i].tv_u.tv_add_symbols = add_symbols; | |
286 | ||
287 | ++i; | |
288 | tv[i].tv_tag = LDPT_NULL; | |
289 | tv[i].tv_u.tv_val = 0; | |
290 | ||
291 | status = (*onload)(tv); | |
292 | ||
293 | if (status != LDPS_OK) | |
b0ceb98a Z |
294 | return 0; |
295 | ||
296 | plugin_list_iter->claim_file = claim_file; | |
ce3c775b | 297 | |
103da91b | 298 | have_claim_file: |
5ae0078c L |
299 | *has_plugin_p = 1; |
300 | ||
301 | abfd->plugin_format = bfd_plugin_no; | |
302 | ||
ce3c775b | 303 | if (!claim_file) |
b0ceb98a | 304 | return 0; |
ce3c775b | 305 | |
e44f5bef | 306 | if (!try_claim (abfd)) |
b0ceb98a | 307 | return 0; |
e44f5bef | 308 | |
5ae0078c | 309 | abfd->plugin_format = bfd_plugin_yes; |
ce3c775b | 310 | return 1; |
ce3c775b NC |
311 | } |
312 | ||
5ae0078c L |
313 | /* There may be plugin libraries in lib/bfd-plugins. */ |
314 | ||
315 | static int has_plugin = -1; | |
316 | ||
317 | static const bfd_target *(*ld_plugin_object_p) (bfd *); | |
318 | ||
ce3c775b NC |
319 | static const char *plugin_name; |
320 | ||
321 | void | |
322 | bfd_plugin_set_plugin (const char *p) | |
323 | { | |
324 | plugin_name = p; | |
5ae0078c L |
325 | has_plugin = p != NULL; |
326 | } | |
327 | ||
328 | /* Return TRUE if a plugin library is used. */ | |
329 | ||
330 | bfd_boolean | |
331 | bfd_plugin_specified_p (void) | |
332 | { | |
333 | return has_plugin > 0; | |
334 | } | |
335 | ||
7dc3990e L |
336 | /* Return TRUE if ABFD can be claimed by linker LTO plugin. */ |
337 | ||
338 | bfd_boolean | |
339 | bfd_link_plugin_object_p (bfd *abfd) | |
340 | { | |
341 | if (ld_plugin_object_p) | |
342 | return ld_plugin_object_p (abfd) != NULL; | |
343 | return FALSE; | |
344 | } | |
345 | ||
5ae0078c L |
346 | extern const bfd_target plugin_vec; |
347 | ||
348 | /* Return TRUE if TARGET is a pointer to plugin_vec. */ | |
349 | ||
350 | bfd_boolean | |
351 | bfd_plugin_target_p (const bfd_target *target) | |
352 | { | |
353 | return target == &plugin_vec; | |
354 | } | |
355 | ||
356 | /* Register OBJECT_P to be used by bfd_plugin_object_p. */ | |
357 | ||
358 | void | |
359 | register_ld_plugin_object_p (const bfd_target *(*object_p) (bfd *)) | |
360 | { | |
361 | ld_plugin_object_p = object_p; | |
ce3c775b NC |
362 | } |
363 | ||
364 | static int | |
e44f5bef | 365 | load_plugin (bfd *abfd) |
ce3c775b NC |
366 | { |
367 | char *plugin_dir; | |
368 | char *p; | |
369 | DIR *d; | |
370 | struct dirent *ent; | |
371 | int found = 0; | |
372 | ||
5ae0078c L |
373 | if (!has_plugin) |
374 | return found; | |
375 | ||
ce3c775b | 376 | if (plugin_name) |
5ae0078c | 377 | return try_load_plugin (plugin_name, abfd, &has_plugin); |
ce3c775b | 378 | |
fc579192 | 379 | if (plugin_program_name == NULL) |
5ae0078c | 380 | return found; |
ce3c775b NC |
381 | |
382 | plugin_dir = concat (BINDIR, "/../lib/bfd-plugins", NULL); | |
fc579192 | 383 | p = make_relative_prefix (plugin_program_name, |
ce3c775b NC |
384 | BINDIR, |
385 | plugin_dir); | |
386 | free (plugin_dir); | |
387 | plugin_dir = NULL; | |
388 | ||
389 | d = opendir (p); | |
390 | if (!d) | |
391 | goto out; | |
392 | ||
393 | while ((ent = readdir (d))) | |
394 | { | |
395 | char *full_name; | |
c41ba836 | 396 | struct stat s; |
5ae0078c | 397 | int valid_plugin; |
ce3c775b NC |
398 | |
399 | full_name = concat (p, "/", ent->d_name, NULL); | |
103da91b | 400 | if (stat (full_name, &s) == 0 && S_ISREG (s.st_mode)) |
5ae0078c L |
401 | found = try_load_plugin (full_name, abfd, &valid_plugin); |
402 | if (has_plugin <= 0) | |
403 | has_plugin = valid_plugin; | |
ce3c775b NC |
404 | free (full_name); |
405 | if (found) | |
406 | break; | |
407 | } | |
408 | ||
409 | out: | |
410 | free (p); | |
411 | if (d) | |
412 | closedir (d); | |
413 | ||
414 | return found; | |
415 | } | |
416 | ||
417 | ||
418 | static const bfd_target * | |
419 | bfd_plugin_object_p (bfd *abfd) | |
420 | { | |
5ae0078c L |
421 | if (ld_plugin_object_p) |
422 | return ld_plugin_object_p (abfd); | |
423 | ||
49f30d83 | 424 | if (abfd->plugin_format == bfd_plugin_unknown && !load_plugin (abfd)) |
ce3c775b NC |
425 | return NULL; |
426 | ||
5ae0078c | 427 | return abfd->plugin_format == bfd_plugin_yes ? abfd->xvec : NULL; |
ce3c775b NC |
428 | } |
429 | ||
430 | /* Copy any private info we understand from the input bfd | |
431 | to the output bfd. */ | |
432 | ||
433 | static bfd_boolean | |
434 | bfd_plugin_bfd_copy_private_bfd_data (bfd *ibfd ATTRIBUTE_UNUSED, | |
435 | bfd *obfd ATTRIBUTE_UNUSED) | |
436 | { | |
437 | BFD_ASSERT (0); | |
438 | return TRUE; | |
439 | } | |
440 | ||
441 | /* Copy any private info we understand from the input section | |
442 | to the output section. */ | |
443 | ||
444 | static bfd_boolean | |
445 | bfd_plugin_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED, | |
446 | asection *isection ATTRIBUTE_UNUSED, | |
447 | bfd *obfd ATTRIBUTE_UNUSED, | |
448 | asection *osection ATTRIBUTE_UNUSED) | |
449 | { | |
450 | BFD_ASSERT (0); | |
451 | return TRUE; | |
452 | } | |
453 | ||
454 | /* Copy any private info we understand from the input symbol | |
455 | to the output symbol. */ | |
456 | ||
457 | static bfd_boolean | |
458 | bfd_plugin_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, | |
459 | asymbol *isymbol ATTRIBUTE_UNUSED, | |
460 | bfd *obfd ATTRIBUTE_UNUSED, | |
461 | asymbol *osymbol ATTRIBUTE_UNUSED) | |
462 | { | |
463 | BFD_ASSERT (0); | |
464 | return TRUE; | |
465 | } | |
466 | ||
467 | static bfd_boolean | |
468 | bfd_plugin_bfd_print_private_bfd_data (bfd *abfd ATTRIBUTE_UNUSED, PTR ptr ATTRIBUTE_UNUSED) | |
469 | { | |
470 | BFD_ASSERT (0); | |
471 | return TRUE; | |
472 | } | |
473 | ||
474 | static char * | |
475 | bfd_plugin_core_file_failing_command (bfd *abfd ATTRIBUTE_UNUSED) | |
476 | { | |
477 | BFD_ASSERT (0); | |
478 | return NULL; | |
479 | } | |
480 | ||
481 | static int | |
482 | bfd_plugin_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) | |
261b8d08 PA |
483 | { |
484 | BFD_ASSERT (0); | |
485 | return 0; | |
486 | } | |
487 | ||
488 | static int | |
489 | bfd_plugin_core_file_pid (bfd *abfd ATTRIBUTE_UNUSED) | |
ce3c775b NC |
490 | { |
491 | BFD_ASSERT (0); | |
492 | return 0; | |
493 | } | |
494 | ||
495 | static long | |
496 | bfd_plugin_get_symtab_upper_bound (bfd *abfd) | |
497 | { | |
498 | struct plugin_data_struct *plugin_data = abfd->tdata.plugin_data; | |
499 | long nsyms = plugin_data->nsyms; | |
500 | ||
501 | BFD_ASSERT (nsyms >= 0); | |
502 | ||
503 | return ((nsyms + 1) * sizeof (asymbol *)); | |
504 | } | |
505 | ||
506 | static flagword | |
507 | convert_flags (const struct ld_plugin_symbol *sym) | |
508 | { | |
509 | switch (sym->def) | |
68ffbac6 | 510 | { |
ce3c775b NC |
511 | case LDPK_DEF: |
512 | case LDPK_COMMON: | |
513 | case LDPK_UNDEF: | |
514 | return BSF_GLOBAL; | |
515 | ||
516 | case LDPK_WEAKUNDEF: | |
517 | case LDPK_WEAKDEF: | |
518 | return BSF_GLOBAL | BSF_WEAK; | |
519 | ||
520 | default: | |
521 | BFD_ASSERT (0); | |
522 | return 0; | |
523 | } | |
524 | } | |
525 | ||
526 | static long | |
527 | bfd_plugin_canonicalize_symtab (bfd *abfd, | |
528 | asymbol **alocation) | |
529 | { | |
530 | struct plugin_data_struct *plugin_data = abfd->tdata.plugin_data; | |
531 | long nsyms = plugin_data->nsyms; | |
532 | const struct ld_plugin_symbol *syms = plugin_data->syms; | |
a288c270 AM |
533 | static asection fake_section |
534 | = BFD_FAKE_SECTION (fake_section, NULL, "plug", 0, | |
535 | SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS); | |
536 | static asection fake_common_section | |
537 | = BFD_FAKE_SECTION (fake_common_section, NULL, "plug", 0, SEC_IS_COMMON); | |
ce3c775b NC |
538 | int i; |
539 | ||
ce3c775b NC |
540 | for (i = 0; i < nsyms; i++) |
541 | { | |
68ffbac6 | 542 | asymbol *s = bfd_alloc (abfd, sizeof (asymbol)); |
ce3c775b NC |
543 | |
544 | BFD_ASSERT (s); | |
545 | alocation[i] = s; | |
546 | ||
547 | s->the_bfd = abfd; | |
548 | s->name = syms[i].name; | |
549 | s->value = 0; | |
550 | s->flags = convert_flags (&syms[i]); | |
551 | switch (syms[i].def) | |
552 | { | |
553 | case LDPK_COMMON: | |
554 | s->section = &fake_common_section; | |
555 | break; | |
556 | case LDPK_UNDEF: | |
557 | case LDPK_WEAKUNDEF: | |
558 | s->section = bfd_und_section_ptr; | |
559 | break; | |
560 | case LDPK_DEF: | |
561 | case LDPK_WEAKDEF: | |
562 | s->section = &fake_section; | |
563 | break; | |
564 | default: | |
565 | BFD_ASSERT (0); | |
566 | } | |
567 | ||
568 | s->udata.p = (void *) &syms[i]; | |
569 | } | |
570 | ||
571 | return nsyms; | |
572 | } | |
573 | ||
574 | static void | |
575 | bfd_plugin_print_symbol (bfd *abfd ATTRIBUTE_UNUSED, | |
576 | PTR afile ATTRIBUTE_UNUSED, | |
577 | asymbol *symbol ATTRIBUTE_UNUSED, | |
578 | bfd_print_symbol_type how ATTRIBUTE_UNUSED) | |
579 | { | |
580 | BFD_ASSERT (0); | |
581 | } | |
582 | ||
583 | static void | |
584 | bfd_plugin_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, | |
585 | asymbol *symbol, | |
586 | symbol_info *ret) | |
587 | { | |
588 | bfd_symbol_info (symbol, ret); | |
589 | } | |
590 | ||
591 | /* Make an empty symbol. */ | |
592 | ||
593 | static asymbol * | |
594 | bfd_plugin_make_empty_symbol (bfd *abfd) | |
595 | { | |
d3ce72d0 NC |
596 | asymbol *new_symbol = bfd_zalloc (abfd, sizeof (asymbol)); |
597 | if (new_symbol == NULL) | |
598 | return new_symbol; | |
599 | new_symbol->the_bfd = abfd; | |
600 | return new_symbol; | |
ce3c775b NC |
601 | } |
602 | ||
603 | static int | |
604 | bfd_plugin_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, | |
605 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
606 | { | |
607 | BFD_ASSERT (0); | |
608 | return 0; | |
609 | } | |
610 | ||
ce3c775b NC |
611 | const bfd_target plugin_vec = |
612 | { | |
613 | "plugin", /* Name. */ | |
614 | bfd_target_unknown_flavour, | |
615 | BFD_ENDIAN_LITTLE, /* Target byte order. */ | |
616 | BFD_ENDIAN_LITTLE, /* Target headers byte order. */ | |
617 | (HAS_RELOC | EXEC_P | /* Object flags. */ | |
618 | HAS_LINENO | HAS_DEBUG | | |
619 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED), | |
620 | (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | |
621 | | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */ | |
622 | 0, /* symbol_leading_char. */ | |
623 | '/', /* ar_pad_char. */ | |
624 | 15, /* ar_max_namelen. */ | |
64bfc258 | 625 | 255, /* match priority. */ |
ce3c775b NC |
626 | |
627 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
628 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
629 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
630 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
631 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
632 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
633 | ||
634 | { /* bfd_check_format. */ | |
635 | _bfd_dummy_target, | |
636 | bfd_plugin_object_p, | |
637 | bfd_generic_archive_p, | |
638 | _bfd_dummy_target | |
639 | }, | |
640 | { /* bfd_set_format. */ | |
d00dd7dc AM |
641 | _bfd_bool_bfd_false_error, |
642 | _bfd_bool_bfd_false_error, | |
ce3c775b | 643 | _bfd_generic_mkarchive, |
d00dd7dc | 644 | _bfd_bool_bfd_false_error, |
ce3c775b NC |
645 | }, |
646 | { /* bfd_write_contents. */ | |
d00dd7dc AM |
647 | _bfd_bool_bfd_false_error, |
648 | _bfd_bool_bfd_false_error, | |
ce3c775b | 649 | _bfd_write_archive_contents, |
d00dd7dc | 650 | _bfd_bool_bfd_false_error, |
ce3c775b NC |
651 | }, |
652 | ||
653 | BFD_JUMP_TABLE_GENERIC (bfd_plugin), | |
654 | BFD_JUMP_TABLE_COPY (bfd_plugin), | |
655 | BFD_JUMP_TABLE_CORE (bfd_plugin), | |
e6cc316a L |
656 | #ifdef USE_64_BIT_ARCHIVE |
657 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit), | |
658 | #else | |
ce3c775b | 659 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), |
e6cc316a | 660 | #endif |
ce3c775b NC |
661 | BFD_JUMP_TABLE_SYMBOLS (bfd_plugin), |
662 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), | |
663 | BFD_JUMP_TABLE_WRITE (bfd_plugin), | |
664 | BFD_JUMP_TABLE_LINK (bfd_plugin), | |
665 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
666 | ||
667 | NULL, | |
668 | ||
07d6d2b8 | 669 | NULL /* backend_data. */ |
ce3c775b | 670 | }; |
98950613 | 671 | #endif /* BFD_SUPPORTS_PLUGIN */ |