Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Linker command language support. |
a2b64bed | 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
e5caa5e0 | 3 | 2001, 2002, 2003, 2004 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
53b2a62f | 6 | This file is part of GLD, the Gnu Linker. |
252b5132 | 7 | |
53b2a62f NC |
8 | GLD 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, or (at your option) | |
11 | any later version. | |
252b5132 | 12 | |
53b2a62f NC |
13 | GLD 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. | |
252b5132 | 17 | |
53b2a62f NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with GLD; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
252b5132 RH |
22 | |
23 | #include "bfd.h" | |
24 | #include "sysdep.h" | |
25 | #include "libiberty.h" | |
3882b010 | 26 | #include "safe-ctype.h" |
252b5132 RH |
27 | #include "obstack.h" |
28 | #include "bfdlink.h" | |
29 | ||
30 | #include "ld.h" | |
31 | #include "ldmain.h" | |
252b5132 RH |
32 | #include "ldexp.h" |
33 | #include "ldlang.h" | |
df2a7313 | 34 | #include <ldgram.h> |
252b5132 RH |
35 | #include "ldlex.h" |
36 | #include "ldmisc.h" | |
37 | #include "ldctor.h" | |
38 | #include "ldfile.h" | |
b71e2778 | 39 | #include "ldemul.h" |
252b5132 RH |
40 | #include "fnmatch.h" |
41 | #include "demangle.h" | |
108ba305 | 42 | #include "hashtab.h" |
252b5132 | 43 | |
7abb6dea | 44 | #ifndef offsetof |
cf888e70 | 45 | #define offsetof(TYPE, MEMBER) ((size_t) & (((TYPE*) 0)->MEMBER)) |
7abb6dea AM |
46 | #endif |
47 | ||
cf888e70 | 48 | /* Locals variables. */ |
252b5132 RH |
49 | static struct obstack stat_obstack; |
50 | ||
51 | #define obstack_chunk_alloc xmalloc | |
52 | #define obstack_chunk_free free | |
5f992e62 | 53 | static const char *startup_file; |
252b5132 | 54 | static lang_statement_list_type input_file_chain; |
b34976b6 | 55 | static bfd_boolean placed_commons = FALSE; |
252b5132 | 56 | static lang_output_section_statement_type *default_common_section; |
b34976b6 | 57 | static bfd_boolean map_option_f; |
252b5132 RH |
58 | static bfd_vma print_dot; |
59 | static lang_input_statement_type *first_file; | |
5f992e62 AM |
60 | static const char *current_target; |
61 | static const char *output_target; | |
252b5132 RH |
62 | static lang_statement_list_type statement_list; |
63 | static struct lang_phdr *lang_phdr_list; | |
420e579c | 64 | static struct bfd_hash_table lang_definedness_table; |
252b5132 | 65 | |
cf888e70 | 66 | /* Forward declarations. */ |
1579bae1 AM |
67 | static void exp_init_os (etree_type *); |
68 | static bfd_boolean wildcardp (const char *); | |
69 | static lang_input_statement_type *lookup_name (const char *); | |
70 | static bfd_boolean load_symbols (lang_input_statement_type *, | |
71 | lang_statement_list_type *); | |
420e579c HPN |
72 | static struct bfd_hash_entry *lang_definedness_newfunc |
73 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); | |
1579bae1 AM |
74 | static void insert_undefined (const char *); |
75 | static void print_statement (lang_statement_union_type *, | |
76 | lang_output_section_statement_type *); | |
77 | static void print_statement_list (lang_statement_union_type *, | |
78 | lang_output_section_statement_type *); | |
79 | static void print_statements (void); | |
80 | static bfd_boolean lang_one_common (struct bfd_link_hash_entry *, void *); | |
81 | static void lang_record_phdrs (void); | |
82 | static void lang_do_version_exports_section (void); | |
83 | ||
84 | typedef void (*callback_t) (lang_wild_statement_type *, struct wildcard_list *, | |
85 | asection *, lang_input_statement_type *, void *); | |
5f992e62 | 86 | |
cf888e70 | 87 | /* Exported variables. */ |
252b5132 | 88 | lang_output_section_statement_type *abs_output_section; |
aea4bd9d | 89 | lang_statement_list_type lang_output_section_statement; |
252b5132 | 90 | lang_statement_list_type *stat_ptr = &statement_list; |
87f2a346 | 91 | lang_statement_list_type file_chain = { NULL, NULL }; |
e3e942e9 | 92 | struct bfd_sym_chain entry_symbol = { NULL, NULL }; |
1e281515 | 93 | const char *entry_section = ".text"; |
b34976b6 AM |
94 | bfd_boolean entry_from_cmdline; |
95 | bfd_boolean lang_has_input_file = FALSE; | |
96 | bfd_boolean had_output_filename = FALSE; | |
97 | bfd_boolean lang_float_flag = FALSE; | |
98 | bfd_boolean delete_output_file_on_failure = FALSE; | |
252b5132 | 99 | struct lang_nocrossrefs *nocrossref_list; |
577a0623 | 100 | struct unique_sections *unique_section_list; |
e3f2db7f | 101 | static bfd_boolean ldlang_sysrooted_script = FALSE; |
420e579c | 102 | int lang_statement_iteration = 0; |
252b5132 RH |
103 | |
104 | etree_type *base; /* Relocation base - or null */ | |
105 | ||
d1778b88 | 106 | #define new_stat(x, y) \ |
1579bae1 | 107 | (x##_type *) new_statement (x##_enum, sizeof (x##_type), y) |
252b5132 | 108 | |
d1778b88 AM |
109 | #define outside_section_address(q) \ |
110 | ((q)->output_offset + (q)->output_section->vma) | |
252b5132 | 111 | |
d1778b88 AM |
112 | #define outside_symbol_address(q) \ |
113 | ((q)->value + outside_section_address (q->section)) | |
252b5132 RH |
114 | |
115 | #define SECTION_NAME_MAP_LENGTH (16) | |
116 | ||
1579bae1 AM |
117 | void * |
118 | stat_alloc (size_t size) | |
252b5132 RH |
119 | { |
120 | return obstack_alloc (&stat_obstack, size); | |
121 | } | |
122 | ||
b34976b6 | 123 | bfd_boolean |
1579bae1 | 124 | unique_section_p (const char *secnam) |
577a0623 AM |
125 | { |
126 | struct unique_sections *unam; | |
127 | ||
128 | for (unam = unique_section_list; unam; unam = unam->next) | |
129 | if (wildcardp (unam->name) | |
130 | ? fnmatch (unam->name, secnam, 0) == 0 | |
131 | : strcmp (unam->name, secnam) == 0) | |
132 | { | |
b34976b6 | 133 | return TRUE; |
577a0623 AM |
134 | } |
135 | ||
b34976b6 | 136 | return FALSE; |
577a0623 AM |
137 | } |
138 | ||
08da4cac | 139 | /* Generic traversal routines for finding matching sections. */ |
4dec4d4e RH |
140 | |
141 | static void | |
1579bae1 AM |
142 | walk_wild_section (lang_wild_statement_type *ptr, |
143 | lang_input_statement_type *file, | |
144 | callback_t callback, | |
145 | void *data) | |
4dec4d4e | 146 | { |
b6bf44ba AM |
147 | asection *s; |
148 | ||
149 | if (file->just_syms_flag) | |
150 | return; | |
151 | ||
152 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
4dec4d4e | 153 | { |
b6bf44ba AM |
154 | struct wildcard_list *sec; |
155 | ||
156 | sec = ptr->section_list; | |
2181f54f AM |
157 | if (sec == NULL) |
158 | (*callback) (ptr, sec, s, file, data); | |
159 | ||
160 | while (sec != NULL) | |
08da4cac | 161 | { |
b34976b6 | 162 | bfd_boolean skip = FALSE; |
2181f54f AM |
163 | struct name_list *list_tmp; |
164 | ||
165 | /* Don't process sections from files which were | |
166 | excluded. */ | |
167 | for (list_tmp = sec->spec.exclude_name_list; | |
168 | list_tmp; | |
169 | list_tmp = list_tmp->next) | |
170 | { | |
171 | if (wildcardp (list_tmp->name)) | |
172 | skip = fnmatch (list_tmp->name, file->filename, 0) == 0; | |
173 | else | |
174 | skip = strcmp (list_tmp->name, file->filename) == 0; | |
4dec4d4e | 175 | |
34efb449 AO |
176 | /* If this file is part of an archive, and the archive is |
177 | excluded, exclude this file. */ | |
178 | if (! skip && file->the_bfd != NULL | |
179 | && file->the_bfd->my_archive != NULL | |
180 | && file->the_bfd->my_archive->filename != NULL) | |
181 | { | |
182 | if (wildcardp (list_tmp->name)) | |
183 | skip = fnmatch (list_tmp->name, | |
184 | file->the_bfd->my_archive->filename, | |
185 | 0) == 0; | |
186 | else | |
187 | skip = strcmp (list_tmp->name, | |
188 | file->the_bfd->my_archive->filename) == 0; | |
189 | } | |
190 | ||
2181f54f AM |
191 | if (skip) |
192 | break; | |
193 | } | |
194 | ||
195 | if (!skip && sec->spec.name != NULL) | |
b6bf44ba | 196 | { |
2181f54f AM |
197 | const char *sname = bfd_get_section_name (file->the_bfd, s); |
198 | ||
199 | if (wildcardp (sec->spec.name)) | |
200 | skip = fnmatch (sec->spec.name, sname, 0) != 0; | |
201 | else | |
202 | skip = strcmp (sec->spec.name, sname) != 0; | |
b6bf44ba | 203 | } |
4dec4d4e | 204 | |
b6bf44ba AM |
205 | if (!skip) |
206 | (*callback) (ptr, sec, s, file, data); | |
4dec4d4e | 207 | |
2181f54f | 208 | sec = sec->next; |
4dec4d4e RH |
209 | } |
210 | } | |
211 | } | |
212 | ||
213 | /* Handle a wild statement for a single file F. */ | |
214 | ||
215 | static void | |
1579bae1 AM |
216 | walk_wild_file (lang_wild_statement_type *s, |
217 | lang_input_statement_type *f, | |
218 | callback_t callback, | |
219 | void *data) | |
4dec4d4e RH |
220 | { |
221 | if (f->the_bfd == NULL | |
222 | || ! bfd_check_format (f->the_bfd, bfd_archive)) | |
b6bf44ba | 223 | walk_wild_section (s, f, callback, data); |
4dec4d4e RH |
224 | else |
225 | { | |
226 | bfd *member; | |
227 | ||
228 | /* This is an archive file. We must map each member of the | |
229 | archive separately. */ | |
1579bae1 | 230 | member = bfd_openr_next_archived_file (f->the_bfd, NULL); |
4dec4d4e RH |
231 | while (member != NULL) |
232 | { | |
233 | /* When lookup_name is called, it will call the add_symbols | |
234 | entry point for the archive. For each element of the | |
235 | archive which is included, BFD will call ldlang_add_file, | |
236 | which will set the usrdata field of the member to the | |
237 | lang_input_statement. */ | |
238 | if (member->usrdata != NULL) | |
239 | { | |
1579bae1 | 240 | walk_wild_section (s, member->usrdata, callback, data); |
4dec4d4e RH |
241 | } |
242 | ||
243 | member = bfd_openr_next_archived_file (f->the_bfd, member); | |
244 | } | |
245 | } | |
246 | } | |
247 | ||
248 | static void | |
1579bae1 | 249 | walk_wild (lang_wild_statement_type *s, callback_t callback, void *data) |
4dec4d4e | 250 | { |
b6bf44ba AM |
251 | const char *file_spec = s->filename; |
252 | ||
253 | if (file_spec == NULL) | |
4dec4d4e RH |
254 | { |
255 | /* Perform the iteration over all files in the list. */ | |
e50d8076 | 256 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 257 | { |
b6bf44ba | 258 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
259 | } |
260 | } | |
b6bf44ba | 261 | else if (wildcardp (file_spec)) |
4dec4d4e | 262 | { |
e50d8076 | 263 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 264 | { |
b6bf44ba AM |
265 | if (fnmatch (file_spec, f->filename, FNM_FILE_NAME) == 0) |
266 | walk_wild_file (s, f, callback, data); | |
4dec4d4e RH |
267 | } |
268 | } | |
269 | else | |
270 | { | |
e50d8076 NC |
271 | lang_input_statement_type *f; |
272 | ||
4dec4d4e | 273 | /* Perform the iteration over a single file. */ |
b6bf44ba | 274 | f = lookup_name (file_spec); |
6770ec8c | 275 | if (f) |
b6bf44ba | 276 | walk_wild_file (s, f, callback, data); |
4dec4d4e | 277 | } |
5f992e62 AM |
278 | } |
279 | ||
08da4cac KH |
280 | /* lang_for_each_statement walks the parse tree and calls the provided |
281 | function for each node. */ | |
252b5132 RH |
282 | |
283 | static void | |
1579bae1 AM |
284 | lang_for_each_statement_worker (void (*func) (lang_statement_union_type *), |
285 | lang_statement_union_type *s) | |
252b5132 | 286 | { |
1579bae1 | 287 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
288 | { |
289 | func (s); | |
290 | ||
291 | switch (s->header.type) | |
292 | { | |
293 | case lang_constructors_statement_enum: | |
294 | lang_for_each_statement_worker (func, constructor_list.head); | |
295 | break; | |
296 | case lang_output_section_statement_enum: | |
297 | lang_for_each_statement_worker | |
298 | (func, | |
299 | s->output_section_statement.children.head); | |
300 | break; | |
301 | case lang_wild_statement_enum: | |
302 | lang_for_each_statement_worker | |
303 | (func, | |
304 | s->wild_statement.children.head); | |
305 | break; | |
306 | case lang_group_statement_enum: | |
307 | lang_for_each_statement_worker (func, | |
308 | s->group_statement.children.head); | |
309 | break; | |
310 | case lang_data_statement_enum: | |
311 | case lang_reloc_statement_enum: | |
312 | case lang_object_symbols_statement_enum: | |
313 | case lang_output_statement_enum: | |
314 | case lang_target_statement_enum: | |
315 | case lang_input_section_enum: | |
316 | case lang_input_statement_enum: | |
317 | case lang_assignment_statement_enum: | |
318 | case lang_padding_statement_enum: | |
319 | case lang_address_statement_enum: | |
320 | case lang_fill_statement_enum: | |
321 | break; | |
322 | default: | |
323 | FAIL (); | |
324 | break; | |
325 | } | |
326 | } | |
327 | } | |
328 | ||
329 | void | |
1579bae1 | 330 | lang_for_each_statement (void (*func) (lang_statement_union_type *)) |
252b5132 | 331 | { |
08da4cac | 332 | lang_for_each_statement_worker (func, statement_list.head); |
252b5132 RH |
333 | } |
334 | ||
335 | /*----------------------------------------------------------------------*/ | |
08da4cac | 336 | |
252b5132 | 337 | void |
1579bae1 | 338 | lang_list_init (lang_statement_list_type *list) |
252b5132 | 339 | { |
1579bae1 | 340 | list->head = NULL; |
252b5132 RH |
341 | list->tail = &list->head; |
342 | } | |
343 | ||
08da4cac | 344 | /* Build a new statement node for the parse tree. */ |
252b5132 | 345 | |
08da4cac | 346 | static lang_statement_union_type * |
1579bae1 AM |
347 | new_statement (enum statement_enum type, |
348 | size_t size, | |
349 | lang_statement_list_type *list) | |
252b5132 | 350 | { |
1579bae1 | 351 | lang_statement_union_type *new; |
252b5132 | 352 | |
1579bae1 | 353 | new = stat_alloc (size); |
252b5132 | 354 | new->header.type = type; |
1579bae1 | 355 | new->header.next = NULL; |
252b5132 RH |
356 | lang_statement_append (list, new, &new->header.next); |
357 | return new; | |
358 | } | |
359 | ||
08da4cac KH |
360 | /* Build a new input file node for the language. There are several |
361 | ways in which we treat an input file, eg, we only look at symbols, | |
362 | or prefix it with a -l etc. | |
252b5132 | 363 | |
08da4cac | 364 | We can be supplied with requests for input files more than once; |
396a2467 | 365 | they may, for example be split over several lines like foo.o(.text) |
d1778b88 | 366 | foo.o(.data) etc, so when asked for a file we check that we haven't |
08da4cac | 367 | got it already so we don't duplicate the bfd. */ |
252b5132 | 368 | |
252b5132 | 369 | static lang_input_statement_type * |
1579bae1 AM |
370 | new_afile (const char *name, |
371 | lang_input_file_enum_type file_type, | |
372 | const char *target, | |
373 | bfd_boolean add_to_list) | |
252b5132 RH |
374 | { |
375 | lang_input_statement_type *p; | |
376 | ||
377 | if (add_to_list) | |
378 | p = new_stat (lang_input_statement, stat_ptr); | |
379 | else | |
380 | { | |
1579bae1 | 381 | p = stat_alloc (sizeof (lang_input_statement_type)); |
252b5132 RH |
382 | p->header.next = NULL; |
383 | } | |
384 | ||
b34976b6 | 385 | lang_has_input_file = TRUE; |
252b5132 | 386 | p->target = target; |
e3f2db7f | 387 | p->sysrooted = FALSE; |
252b5132 RH |
388 | switch (file_type) |
389 | { | |
390 | case lang_input_file_is_symbols_only_enum: | |
391 | p->filename = name; | |
b34976b6 AM |
392 | p->is_archive = FALSE; |
393 | p->real = TRUE; | |
252b5132 | 394 | p->local_sym_name = name; |
b34976b6 AM |
395 | p->just_syms_flag = TRUE; |
396 | p->search_dirs_flag = FALSE; | |
252b5132 RH |
397 | break; |
398 | case lang_input_file_is_fake_enum: | |
399 | p->filename = name; | |
b34976b6 AM |
400 | p->is_archive = FALSE; |
401 | p->real = FALSE; | |
252b5132 | 402 | p->local_sym_name = name; |
b34976b6 AM |
403 | p->just_syms_flag = FALSE; |
404 | p->search_dirs_flag = FALSE; | |
252b5132 RH |
405 | break; |
406 | case lang_input_file_is_l_enum: | |
b34976b6 | 407 | p->is_archive = TRUE; |
252b5132 | 408 | p->filename = name; |
b34976b6 | 409 | p->real = TRUE; |
1579bae1 | 410 | p->local_sym_name = concat ("-l", name, NULL); |
b34976b6 AM |
411 | p->just_syms_flag = FALSE; |
412 | p->search_dirs_flag = TRUE; | |
252b5132 RH |
413 | break; |
414 | case lang_input_file_is_marker_enum: | |
415 | p->filename = name; | |
b34976b6 AM |
416 | p->is_archive = FALSE; |
417 | p->real = FALSE; | |
252b5132 | 418 | p->local_sym_name = name; |
b34976b6 AM |
419 | p->just_syms_flag = FALSE; |
420 | p->search_dirs_flag = TRUE; | |
252b5132 RH |
421 | break; |
422 | case lang_input_file_is_search_file_enum: | |
e3f2db7f | 423 | p->sysrooted = ldlang_sysrooted_script; |
252b5132 | 424 | p->filename = name; |
b34976b6 AM |
425 | p->is_archive = FALSE; |
426 | p->real = TRUE; | |
252b5132 | 427 | p->local_sym_name = name; |
b34976b6 AM |
428 | p->just_syms_flag = FALSE; |
429 | p->search_dirs_flag = TRUE; | |
252b5132 RH |
430 | break; |
431 | case lang_input_file_is_file_enum: | |
432 | p->filename = name; | |
b34976b6 AM |
433 | p->is_archive = FALSE; |
434 | p->real = TRUE; | |
252b5132 | 435 | p->local_sym_name = name; |
b34976b6 AM |
436 | p->just_syms_flag = FALSE; |
437 | p->search_dirs_flag = FALSE; | |
252b5132 RH |
438 | break; |
439 | default: | |
440 | FAIL (); | |
441 | } | |
1579bae1 AM |
442 | p->the_bfd = NULL; |
443 | p->asymbols = NULL; | |
444 | p->next_real_file = NULL; | |
445 | p->next = NULL; | |
252b5132 RH |
446 | p->symbol_count = 0; |
447 | p->dynamic = config.dynamic_link; | |
448 | p->whole_archive = whole_archive; | |
b34976b6 | 449 | p->loaded = FALSE; |
252b5132 RH |
450 | lang_statement_append (&input_file_chain, |
451 | (lang_statement_union_type *) p, | |
452 | &p->next_real_file); | |
453 | return p; | |
454 | } | |
455 | ||
456 | lang_input_statement_type * | |
1579bae1 AM |
457 | lang_add_input_file (const char *name, |
458 | lang_input_file_enum_type file_type, | |
459 | const char *target) | |
252b5132 | 460 | { |
b34976b6 AM |
461 | lang_has_input_file = TRUE; |
462 | return new_afile (name, file_type, target, TRUE); | |
252b5132 RH |
463 | } |
464 | ||
08da4cac KH |
465 | /* Build enough state so that the parser can build its tree. */ |
466 | ||
252b5132 | 467 | void |
1579bae1 | 468 | lang_init (void) |
252b5132 RH |
469 | { |
470 | obstack_begin (&stat_obstack, 1000); | |
471 | ||
472 | stat_ptr = &statement_list; | |
473 | ||
474 | lang_list_init (stat_ptr); | |
475 | ||
476 | lang_list_init (&input_file_chain); | |
477 | lang_list_init (&lang_output_section_statement); | |
478 | lang_list_init (&file_chain); | |
1579bae1 AM |
479 | first_file = lang_add_input_file (NULL, lang_input_file_is_marker_enum, |
480 | NULL); | |
08da4cac KH |
481 | abs_output_section = |
482 | lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME); | |
252b5132 RH |
483 | |
484 | abs_output_section->bfd_section = bfd_abs_section_ptr; | |
420e579c HPN |
485 | |
486 | /* The value "3" is ad-hoc, somewhat related to the expected number of | |
487 | DEFINED expressions in a linker script. For most default linker | |
488 | scripts, there are none. Why a hash table then? Well, it's somewhat | |
489 | simpler to re-use working machinery than using a linked list in terms | |
490 | of code-complexity here in ld, besides the initialization which just | |
491 | looks like other code here. */ | |
492 | if (bfd_hash_table_init_n (&lang_definedness_table, | |
493 | lang_definedness_newfunc, 3) != TRUE) | |
494 | einfo (_("%P%F: out of memory during initialization")); | |
495 | ||
496 | /* Callers of exp_fold_tree need to increment this. */ | |
497 | lang_statement_iteration = 0; | |
252b5132 RH |
498 | } |
499 | ||
500 | /*---------------------------------------------------------------------- | |
08da4cac KH |
501 | A region is an area of memory declared with the |
502 | MEMORY { name:org=exp, len=exp ... } | |
503 | syntax. | |
252b5132 | 504 | |
08da4cac | 505 | We maintain a list of all the regions here. |
252b5132 | 506 | |
08da4cac | 507 | If no regions are specified in the script, then the default is used |
a747ee4d NC |
508 | which is created when looked up to be the entire data space. |
509 | ||
510 | If create is true we are creating a region inside a MEMORY block. | |
511 | In this case it is probably an error to create a region that has | |
512 | already been created. If we are not inside a MEMORY block it is | |
513 | dubious to use an undeclared region name (except DEFAULT_MEMORY_REGION) | |
514 | and so we issue a warning. */ | |
252b5132 RH |
515 | |
516 | static lang_memory_region_type *lang_memory_region_list; | |
517 | static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list; | |
518 | ||
519 | lang_memory_region_type * | |
a747ee4d | 520 | lang_memory_region_lookup (const char *const name, bfd_boolean create) |
252b5132 RH |
521 | { |
522 | lang_memory_region_type *p; | |
1579bae1 | 523 | lang_memory_region_type *new; |
252b5132 | 524 | |
9f88b410 RS |
525 | /* NAME is NULL for LMA memspecs if no region was specified. */ |
526 | if (name == NULL) | |
527 | return NULL; | |
528 | ||
1579bae1 | 529 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
a747ee4d NC |
530 | if (strcmp (p->name, name) == 0) |
531 | { | |
532 | if (create) | |
533 | einfo (_("%P:%S: warning: redeclaration of memory region '%s'\n"), name); | |
1579bae1 | 534 | return p; |
a747ee4d | 535 | } |
252b5132 RH |
536 | |
537 | #if 0 | |
538 | /* This code used to always use the first region in the list as the | |
539 | default region. I changed it to instead use a region | |
540 | encompassing all of memory as the default region. This permits | |
541 | NOLOAD sections to work reasonably without requiring a region. | |
542 | People should specify what region they mean, if they really want | |
543 | a region. */ | |
a747ee4d | 544 | if (strcmp (name, DEFAULT_MEMORY_REGION) == 0) |
252b5132 | 545 | { |
1579bae1 AM |
546 | if (lang_memory_region_list != NULL) |
547 | return lang_memory_region_list; | |
252b5132 RH |
548 | } |
549 | #endif | |
550 | ||
a747ee4d NC |
551 | if (!create && strcmp (name, DEFAULT_MEMORY_REGION)) |
552 | einfo (_("%P:%S: warning: memory region %s not declared\n"), name); | |
553 | ||
1579bae1 | 554 | new = stat_alloc (sizeof (lang_memory_region_type)); |
252b5132 | 555 | |
1579bae1 AM |
556 | new->name = xstrdup (name); |
557 | new->next = NULL; | |
252b5132 | 558 | |
1579bae1 AM |
559 | *lang_memory_region_list_tail = new; |
560 | lang_memory_region_list_tail = &new->next; | |
561 | new->origin = 0; | |
562 | new->flags = 0; | |
563 | new->not_flags = 0; | |
564 | new->length = ~(bfd_size_type) 0; | |
565 | new->current = 0; | |
566 | new->had_full_message = FALSE; | |
252b5132 | 567 | |
1579bae1 | 568 | return new; |
252b5132 RH |
569 | } |
570 | ||
5f992e62 | 571 | static lang_memory_region_type * |
1579bae1 | 572 | lang_memory_default (asection *section) |
252b5132 RH |
573 | { |
574 | lang_memory_region_type *p; | |
575 | ||
576 | flagword sec_flags = section->flags; | |
577 | ||
578 | /* Override SEC_DATA to mean a writable section. */ | |
579 | if ((sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE)) == SEC_ALLOC) | |
580 | sec_flags |= SEC_DATA; | |
581 | ||
1579bae1 | 582 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
252b5132 RH |
583 | { |
584 | if ((p->flags & sec_flags) != 0 | |
585 | && (p->not_flags & sec_flags) == 0) | |
586 | { | |
587 | return p; | |
588 | } | |
589 | } | |
a747ee4d | 590 | return lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE); |
252b5132 RH |
591 | } |
592 | ||
593 | lang_output_section_statement_type * | |
1579bae1 | 594 | lang_output_section_find (const char *const name) |
252b5132 RH |
595 | { |
596 | lang_statement_union_type *u; | |
597 | lang_output_section_statement_type *lookup; | |
598 | ||
1579bae1 | 599 | for (u = lang_output_section_statement.head; u != NULL; u = lookup->next) |
252b5132 RH |
600 | { |
601 | lookup = &u->output_section_statement; | |
602 | if (strcmp (name, lookup->name) == 0) | |
1579bae1 | 603 | return lookup; |
252b5132 | 604 | } |
1579bae1 | 605 | return NULL; |
252b5132 RH |
606 | } |
607 | ||
608 | lang_output_section_statement_type * | |
1579bae1 | 609 | lang_output_section_statement_lookup (const char *const name) |
252b5132 RH |
610 | { |
611 | lang_output_section_statement_type *lookup; | |
612 | ||
613 | lookup = lang_output_section_find (name); | |
1579bae1 | 614 | if (lookup == NULL) |
252b5132 | 615 | { |
1579bae1 AM |
616 | lookup = new_stat (lang_output_section_statement, stat_ptr); |
617 | lookup->region = NULL; | |
618 | lookup->lma_region = NULL; | |
619 | lookup->fill = 0; | |
252b5132 RH |
620 | lookup->block_value = 1; |
621 | lookup->name = name; | |
622 | ||
1579bae1 AM |
623 | lookup->next = NULL; |
624 | lookup->bfd_section = NULL; | |
b34976b6 | 625 | lookup->processed = FALSE; |
252b5132 | 626 | lookup->sectype = normal_section; |
1579bae1 | 627 | lookup->addr_tree = NULL; |
252b5132 RH |
628 | lang_list_init (&lookup->children); |
629 | ||
1579bae1 | 630 | lookup->memspec = NULL; |
252b5132 RH |
631 | lookup->flags = 0; |
632 | lookup->subsection_alignment = -1; | |
633 | lookup->section_alignment = -1; | |
1579bae1 | 634 | lookup->load_base = NULL; |
9f88b410 | 635 | lookup->update_dot_tree = NULL; |
252b5132 RH |
636 | lookup->phdrs = NULL; |
637 | ||
638 | lang_statement_append (&lang_output_section_statement, | |
639 | (lang_statement_union_type *) lookup, | |
640 | &lookup->next); | |
641 | } | |
642 | return lookup; | |
643 | } | |
644 | ||
645 | static void | |
1579bae1 | 646 | lang_map_flags (flagword flag) |
252b5132 RH |
647 | { |
648 | if (flag & SEC_ALLOC) | |
649 | minfo ("a"); | |
650 | ||
651 | if (flag & SEC_CODE) | |
652 | minfo ("x"); | |
653 | ||
654 | if (flag & SEC_READONLY) | |
655 | minfo ("r"); | |
656 | ||
657 | if (flag & SEC_DATA) | |
658 | minfo ("w"); | |
659 | ||
660 | if (flag & SEC_LOAD) | |
661 | minfo ("l"); | |
662 | } | |
663 | ||
664 | void | |
1579bae1 | 665 | lang_map (void) |
252b5132 RH |
666 | { |
667 | lang_memory_region_type *m; | |
668 | ||
669 | minfo (_("\nMemory Configuration\n\n")); | |
670 | fprintf (config.map_file, "%-16s %-18s %-18s %s\n", | |
671 | _("Name"), _("Origin"), _("Length"), _("Attributes")); | |
672 | ||
1579bae1 | 673 | for (m = lang_memory_region_list; m != NULL; m = m->next) |
252b5132 RH |
674 | { |
675 | char buf[100]; | |
676 | int len; | |
677 | ||
678 | fprintf (config.map_file, "%-16s ", m->name); | |
679 | ||
680 | sprintf_vma (buf, m->origin); | |
681 | minfo ("0x%s ", buf); | |
682 | len = strlen (buf); | |
683 | while (len < 16) | |
684 | { | |
685 | print_space (); | |
686 | ++len; | |
687 | } | |
688 | ||
689 | minfo ("0x%V", m->length); | |
690 | if (m->flags || m->not_flags) | |
691 | { | |
692 | #ifndef BFD64 | |
693 | minfo (" "); | |
694 | #endif | |
695 | if (m->flags) | |
696 | { | |
697 | print_space (); | |
698 | lang_map_flags (m->flags); | |
699 | } | |
700 | ||
701 | if (m->not_flags) | |
702 | { | |
703 | minfo (" !"); | |
704 | lang_map_flags (m->not_flags); | |
705 | } | |
706 | } | |
707 | ||
708 | print_nl (); | |
709 | } | |
710 | ||
711 | fprintf (config.map_file, _("\nLinker script and memory map\n\n")); | |
712 | ||
713 | print_statements (); | |
714 | } | |
715 | ||
716 | /* Initialize an output section. */ | |
717 | ||
718 | static void | |
1579bae1 | 719 | init_os (lang_output_section_statement_type *s) |
252b5132 RH |
720 | { |
721 | section_userdata_type *new; | |
722 | ||
723 | if (s->bfd_section != NULL) | |
724 | return; | |
725 | ||
726 | if (strcmp (s->name, DISCARD_SECTION_NAME) == 0) | |
6f9efd97 | 727 | einfo (_("%P%F: Illegal use of `%s' section\n"), DISCARD_SECTION_NAME); |
252b5132 | 728 | |
1579bae1 | 729 | new = stat_alloc (sizeof (section_userdata_type)); |
252b5132 RH |
730 | |
731 | s->bfd_section = bfd_get_section_by_name (output_bfd, s->name); | |
1579bae1 | 732 | if (s->bfd_section == NULL) |
252b5132 | 733 | s->bfd_section = bfd_make_section (output_bfd, s->name); |
1579bae1 | 734 | if (s->bfd_section == NULL) |
252b5132 RH |
735 | { |
736 | einfo (_("%P%F: output format %s cannot represent section called %s\n"), | |
737 | output_bfd->xvec->name, s->name); | |
738 | } | |
739 | s->bfd_section->output_section = s->bfd_section; | |
740 | ||
08da4cac KH |
741 | /* We initialize an output sections output offset to minus its own |
742 | vma to allow us to output a section through itself. */ | |
252b5132 | 743 | s->bfd_section->output_offset = 0; |
1579bae1 | 744 | get_userdata (s->bfd_section) = new; |
252b5132 RH |
745 | |
746 | /* If there is a base address, make sure that any sections it might | |
747 | mention are initialized. */ | |
748 | if (s->addr_tree != NULL) | |
749 | exp_init_os (s->addr_tree); | |
18794b0c AM |
750 | |
751 | if (s->load_base != NULL) | |
752 | exp_init_os (s->load_base); | |
252b5132 RH |
753 | } |
754 | ||
755 | /* Make sure that all output sections mentioned in an expression are | |
756 | initialized. */ | |
757 | ||
758 | static void | |
1579bae1 | 759 | exp_init_os (etree_type *exp) |
252b5132 RH |
760 | { |
761 | switch (exp->type.node_class) | |
762 | { | |
763 | case etree_assign: | |
764 | exp_init_os (exp->assign.src); | |
765 | break; | |
766 | ||
767 | case etree_binary: | |
768 | exp_init_os (exp->binary.lhs); | |
769 | exp_init_os (exp->binary.rhs); | |
770 | break; | |
771 | ||
772 | case etree_trinary: | |
773 | exp_init_os (exp->trinary.cond); | |
774 | exp_init_os (exp->trinary.lhs); | |
775 | exp_init_os (exp->trinary.rhs); | |
776 | break; | |
777 | ||
b6ca8815 NS |
778 | case etree_assert: |
779 | exp_init_os (exp->assert_s.child); | |
780 | break; | |
781 | ||
252b5132 RH |
782 | case etree_unary: |
783 | exp_init_os (exp->unary.child); | |
784 | break; | |
785 | ||
786 | case etree_name: | |
787 | switch (exp->type.node_code) | |
788 | { | |
789 | case ADDR: | |
790 | case LOADADDR: | |
791 | case SIZEOF: | |
792 | { | |
793 | lang_output_section_statement_type *os; | |
794 | ||
795 | os = lang_output_section_find (exp->name.name); | |
796 | if (os != NULL && os->bfd_section == NULL) | |
797 | init_os (os); | |
798 | } | |
799 | } | |
800 | break; | |
801 | ||
802 | default: | |
803 | break; | |
804 | } | |
805 | } | |
9503fd87 | 806 | \f |
252b5132 | 807 | /* Sections marked with the SEC_LINK_ONCE flag should only be linked |
9503fd87 ILT |
808 | once into the output. This routine checks each section, and |
809 | arrange to discard it if a section of the same name has already | |
bb8fe706 ILT |
810 | been linked. If the section has COMDAT information, then it uses |
811 | that to decide whether the section should be included. This code | |
812 | assumes that all relevant sections have the SEC_LINK_ONCE flag set; | |
9503fd87 ILT |
813 | that is, it does not depend solely upon the section name. |
814 | section_already_linked is called via bfd_map_over_sections. */ | |
815 | ||
816 | /* This is the shape of the elements inside the already_linked hash | |
817 | table. It maps a name onto a list of already_linked elements with | |
818 | the same name. It's possible to get more than one element in a | |
819 | list if the COMDAT sections have different names. */ | |
820 | ||
5f992e62 | 821 | struct already_linked_hash_entry |
9503fd87 ILT |
822 | { |
823 | struct bfd_hash_entry root; | |
824 | struct already_linked *entry; | |
825 | }; | |
826 | ||
5f992e62 | 827 | struct already_linked |
9503fd87 ILT |
828 | { |
829 | struct already_linked *next; | |
830 | asection *sec; | |
831 | }; | |
832 | ||
833 | /* The hash table. */ | |
834 | ||
835 | static struct bfd_hash_table already_linked_table; | |
252b5132 | 836 | |
252b5132 | 837 | static void |
1579bae1 | 838 | section_already_linked (bfd *abfd, asection *sec, void *data) |
252b5132 | 839 | { |
1579bae1 | 840 | lang_input_statement_type *entry = data; |
252b5132 RH |
841 | flagword flags; |
842 | const char *name; | |
9503fd87 ILT |
843 | struct already_linked *l; |
844 | struct already_linked_hash_entry *already_linked_list; | |
252b5132 RH |
845 | |
846 | /* If we are only reading symbols from this object, then we want to | |
847 | discard all sections. */ | |
848 | if (entry->just_syms_flag) | |
849 | { | |
c2c01aa7 | 850 | bfd_link_just_syms (sec, &link_info); |
252b5132 RH |
851 | return; |
852 | } | |
853 | ||
854 | flags = bfd_get_section_flags (abfd, sec); | |
855 | ||
856 | if ((flags & SEC_LINK_ONCE) == 0) | |
857 | return; | |
858 | ||
577a0623 | 859 | /* FIXME: When doing a relocatable link, we may have trouble |
e361c369 ILT |
860 | copying relocations in other sections that refer to local symbols |
861 | in the section being discarded. Those relocations will have to | |
862 | be converted somehow; as of this writing I'm not sure that any of | |
863 | the backends handle that correctly. | |
864 | ||
865 | It is tempting to instead not discard link once sections when | |
577a0623 | 866 | doing a relocatable link (technically, they should be discarded |
e361c369 ILT |
867 | whenever we are building constructors). However, that fails, |
868 | because the linker winds up combining all the link once sections | |
869 | into a single large link once section, which defeats the purpose | |
870 | of having link once sections in the first place. | |
871 | ||
577a0623 | 872 | Also, not merging link once sections in a relocatable link |
9ad85d9b | 873 | causes trouble for MIPS ELF, which relies on link once semantics |
e361c369 ILT |
874 | to handle the .reginfo section correctly. */ |
875 | ||
252b5132 RH |
876 | name = bfd_get_section_name (abfd, sec); |
877 | ||
5f992e62 | 878 | already_linked_list = |
9503fd87 | 879 | ((struct already_linked_hash_entry *) |
b34976b6 | 880 | bfd_hash_lookup (&already_linked_table, name, TRUE, FALSE)); |
9503fd87 | 881 | |
08da4cac | 882 | for (l = already_linked_list->entry; l != NULL; l = l->next) |
252b5132 | 883 | { |
9503fd87 ILT |
884 | if (sec->comdat == NULL |
885 | || l->sec->comdat == NULL | |
886 | || strcmp (sec->comdat->name, l->sec->comdat->name) == 0) | |
252b5132 RH |
887 | { |
888 | /* The section has already been linked. See if we should | |
889 | issue a warning. */ | |
890 | switch (flags & SEC_LINK_DUPLICATES) | |
891 | { | |
892 | default: | |
893 | abort (); | |
894 | ||
895 | case SEC_LINK_DUPLICATES_DISCARD: | |
896 | break; | |
897 | ||
898 | case SEC_LINK_DUPLICATES_ONE_ONLY: | |
bb8fe706 ILT |
899 | if (sec->comdat == NULL) |
900 | einfo (_("%P: %B: warning: ignoring duplicate section `%s'\n"), | |
901 | abfd, name); | |
902 | else | |
903 | einfo (_("%P: %B: warning: ignoring duplicate `%s' section symbol `%s'\n"), | |
904 | abfd, name, sec->comdat->name); | |
252b5132 RH |
905 | break; |
906 | ||
907 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: | |
908 | /* FIXME: We should really dig out the contents of both | |
909 | sections and memcmp them. The COFF/PE spec says that | |
910 | the Microsoft linker does not implement this | |
911 | correctly, so I'm not going to bother doing it | |
912 | either. */ | |
913 | /* Fall through. */ | |
914 | case SEC_LINK_DUPLICATES_SAME_SIZE: | |
915 | if (bfd_section_size (abfd, sec) | |
916 | != bfd_section_size (l->sec->owner, l->sec)) | |
917 | einfo (_("%P: %B: warning: duplicate section `%s' has different size\n"), | |
918 | abfd, name); | |
919 | break; | |
920 | } | |
921 | ||
39dcfe18 AM |
922 | /* Set the output_section field so that lang_add_section |
923 | does not create a lang_input_section structure for this | |
f97b9cb8 L |
924 | section. Since there might be a symbol in the section |
925 | being discarded, we must retain a pointer to the section | |
926 | which we are really going to use. */ | |
252b5132 | 927 | sec->output_section = bfd_abs_section_ptr; |
f97b9cb8 | 928 | sec->kept_section = l->sec; |
252b5132 | 929 | |
9ad85d9b AM |
930 | if (flags & SEC_GROUP) |
931 | bfd_discard_group (abfd, sec); | |
932 | ||
252b5132 RH |
933 | return; |
934 | } | |
935 | } | |
936 | ||
9503fd87 ILT |
937 | /* This is the first section with this name. Record it. Allocate |
938 | the memory from the same obstack as the hash table is kept in. */ | |
939 | ||
1579bae1 | 940 | l = bfd_hash_allocate (&already_linked_table, sizeof *l); |
252b5132 | 941 | |
252b5132 | 942 | l->sec = sec; |
9503fd87 ILT |
943 | l->next = already_linked_list->entry; |
944 | already_linked_list->entry = l; | |
945 | } | |
946 | ||
947 | /* Support routines for the hash table used by section_already_linked, | |
948 | initialize the table, fill in an entry and remove the table. */ | |
949 | ||
950 | static struct bfd_hash_entry * | |
1579bae1 AM |
951 | already_linked_newfunc (struct bfd_hash_entry *entry ATTRIBUTE_UNUSED, |
952 | struct bfd_hash_table *table, | |
953 | const char *string ATTRIBUTE_UNUSED) | |
9503fd87 | 954 | { |
5f992e62 | 955 | struct already_linked_hash_entry *ret = |
9503fd87 ILT |
956 | bfd_hash_allocate (table, sizeof (struct already_linked_hash_entry)); |
957 | ||
958 | ret->entry = NULL; | |
959 | ||
1579bae1 | 960 | return &ret->root; |
9503fd87 ILT |
961 | } |
962 | ||
963 | static void | |
1579bae1 | 964 | already_linked_table_init (void) |
9503fd87 ILT |
965 | { |
966 | if (! bfd_hash_table_init_n (&already_linked_table, | |
967 | already_linked_newfunc, | |
968 | 42)) | |
969 | einfo (_("%P%F: Failed to create hash table\n")); | |
970 | } | |
971 | ||
972 | static void | |
1579bae1 | 973 | already_linked_table_free (void) |
9503fd87 ILT |
974 | { |
975 | bfd_hash_table_free (&already_linked_table); | |
252b5132 RH |
976 | } |
977 | \f | |
978 | /* The wild routines. | |
979 | ||
980 | These expand statements like *(.text) and foo.o to a list of | |
981 | explicit actions, like foo.o(.text), bar.o(.text) and | |
982 | foo.o(.text, .data). */ | |
983 | ||
b34976b6 | 984 | /* Return TRUE if the PATTERN argument is a wildcard pattern. |
252b5132 RH |
985 | Although backslashes are treated specially if a pattern contains |
986 | wildcards, we do not consider the mere presence of a backslash to | |
ca0c1d3e | 987 | be enough to cause the pattern to be treated as a wildcard. |
252b5132 RH |
988 | That lets us handle DOS filenames more naturally. */ |
989 | ||
b34976b6 | 990 | static bfd_boolean |
1579bae1 | 991 | wildcardp (const char *pattern) |
252b5132 RH |
992 | { |
993 | const char *s; | |
994 | ||
995 | for (s = pattern; *s != '\0'; ++s) | |
996 | if (*s == '?' | |
997 | || *s == '*' | |
998 | || *s == '[') | |
b34976b6 AM |
999 | return TRUE; |
1000 | return FALSE; | |
252b5132 RH |
1001 | } |
1002 | ||
1003 | /* Add SECTION to the output section OUTPUT. Do this by creating a | |
1004 | lang_input_section statement which is placed at PTR. FILE is the | |
1005 | input file which holds SECTION. */ | |
1006 | ||
1007 | void | |
1579bae1 AM |
1008 | lang_add_section (lang_statement_list_type *ptr, |
1009 | asection *section, | |
1010 | lang_output_section_statement_type *output, | |
1011 | lang_input_statement_type *file) | |
252b5132 RH |
1012 | { |
1013 | flagword flags; | |
b34976b6 | 1014 | bfd_boolean discard; |
252b5132 RH |
1015 | |
1016 | flags = bfd_get_section_flags (section->owner, section); | |
1017 | ||
b34976b6 | 1018 | discard = FALSE; |
252b5132 | 1019 | |
c4c41219 AM |
1020 | /* Discard sections marked with SEC_EXCLUDE if we are doing a final |
1021 | link. Discard debugging sections marked with SEC_EXCLUDE on a | |
1022 | relocatable link too. */ | |
1023 | if ((flags & SEC_EXCLUDE) != 0 | |
1049f94e | 1024 | && ((flags & SEC_DEBUGGING) != 0 || !link_info.relocatable)) |
b34976b6 | 1025 | discard = TRUE; |
252b5132 RH |
1026 | |
1027 | /* Discard input sections which are assigned to a section named | |
1028 | DISCARD_SECTION_NAME. */ | |
1029 | if (strcmp (output->name, DISCARD_SECTION_NAME) == 0) | |
b34976b6 | 1030 | discard = TRUE; |
252b5132 RH |
1031 | |
1032 | /* Discard debugging sections if we are stripping debugging | |
1033 | information. */ | |
1034 | if ((link_info.strip == strip_debugger || link_info.strip == strip_all) | |
1035 | && (flags & SEC_DEBUGGING) != 0) | |
b34976b6 | 1036 | discard = TRUE; |
252b5132 RH |
1037 | |
1038 | if (discard) | |
1039 | { | |
1040 | if (section->output_section == NULL) | |
1041 | { | |
1042 | /* This prevents future calls from assigning this section. */ | |
1043 | section->output_section = bfd_abs_section_ptr; | |
1044 | } | |
1045 | return; | |
1046 | } | |
1047 | ||
1048 | if (section->output_section == NULL) | |
1049 | { | |
b34976b6 | 1050 | bfd_boolean first; |
252b5132 RH |
1051 | lang_input_section_type *new; |
1052 | flagword flags; | |
1053 | ||
1054 | if (output->bfd_section == NULL) | |
d1778b88 AM |
1055 | init_os (output); |
1056 | ||
1057 | first = ! output->bfd_section->linker_has_input; | |
1058 | output->bfd_section->linker_has_input = 1; | |
252b5132 | 1059 | |
08da4cac | 1060 | /* Add a section reference to the list. */ |
252b5132 RH |
1061 | new = new_stat (lang_input_section, ptr); |
1062 | ||
1063 | new->section = section; | |
1064 | new->ifile = file; | |
1065 | section->output_section = output->bfd_section; | |
1066 | ||
1067 | flags = section->flags; | |
1068 | ||
1069 | /* We don't copy the SEC_NEVER_LOAD flag from an input section | |
1070 | to an output section, because we want to be able to include a | |
1071 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
1072 | section (I don't know why we want to do this, but we do). | |
1073 | build_link_order in ldwrite.c handles this case by turning | |
1074 | the embedded SEC_NEVER_LOAD section into a fill. */ | |
1075 | ||
1076 | flags &= ~ SEC_NEVER_LOAD; | |
1077 | ||
1078 | /* If final link, don't copy the SEC_LINK_ONCE flags, they've | |
1079 | already been processed. One reason to do this is that on pe | |
1080 | format targets, .text$foo sections go into .text and it's odd | |
1081 | to see .text with SEC_LINK_ONCE set. */ | |
1082 | ||
1049f94e | 1083 | if (! link_info.relocatable) |
252b5132 RH |
1084 | flags &= ~ (SEC_LINK_ONCE | SEC_LINK_DUPLICATES); |
1085 | ||
1086 | /* If this is not the first input section, and the SEC_READONLY | |
1087 | flag is not currently set, then don't set it just because the | |
1088 | input section has it set. */ | |
1089 | ||
1090 | if (! first && (section->output_section->flags & SEC_READONLY) == 0) | |
1091 | flags &= ~ SEC_READONLY; | |
1092 | ||
f5fa8ca2 JJ |
1093 | /* Keep SEC_MERGE and SEC_STRINGS only if they are the same. */ |
1094 | if (! first | |
1095 | && ((section->output_section->flags & (SEC_MERGE | SEC_STRINGS)) | |
1096 | != (flags & (SEC_MERGE | SEC_STRINGS)) | |
1097 | || ((flags & SEC_MERGE) | |
1098 | && section->output_section->entsize != section->entsize))) | |
1099 | { | |
1100 | section->output_section->flags &= ~ (SEC_MERGE | SEC_STRINGS); | |
1101 | flags &= ~ (SEC_MERGE | SEC_STRINGS); | |
1102 | } | |
1103 | ||
13ae64f3 | 1104 | /* For now make .tbss normal section. */ |
1049f94e | 1105 | if ((flags & SEC_THREAD_LOCAL) && ! link_info.relocatable) |
13ae64f3 JJ |
1106 | flags |= SEC_LOAD; |
1107 | ||
252b5132 RH |
1108 | section->output_section->flags |= flags; |
1109 | ||
f5fa8ca2 JJ |
1110 | if (flags & SEC_MERGE) |
1111 | section->output_section->entsize = section->entsize; | |
1112 | ||
252b5132 RH |
1113 | /* If SEC_READONLY is not set in the input section, then clear |
1114 | it from the output section. */ | |
1115 | if ((section->flags & SEC_READONLY) == 0) | |
1116 | section->output_section->flags &= ~SEC_READONLY; | |
1117 | ||
1118 | switch (output->sectype) | |
1119 | { | |
1120 | case normal_section: | |
1121 | break; | |
1122 | case dsect_section: | |
1123 | case copy_section: | |
1124 | case info_section: | |
1125 | case overlay_section: | |
1126 | output->bfd_section->flags &= ~SEC_ALLOC; | |
1127 | break; | |
1128 | case noload_section: | |
1129 | output->bfd_section->flags &= ~SEC_LOAD; | |
1130 | output->bfd_section->flags |= SEC_NEVER_LOAD; | |
1131 | break; | |
1132 | } | |
1133 | ||
667f5177 ILT |
1134 | /* Copy over SEC_SMALL_DATA. */ |
1135 | if (section->flags & SEC_SMALL_DATA) | |
1136 | section->output_section->flags |= SEC_SMALL_DATA; | |
9e41f973 | 1137 | |
252b5132 RH |
1138 | if (section->alignment_power > output->bfd_section->alignment_power) |
1139 | output->bfd_section->alignment_power = section->alignment_power; | |
1140 | ||
396a2467 | 1141 | /* If supplied an alignment, then force it. */ |
252b5132 RH |
1142 | if (output->section_alignment != -1) |
1143 | output->bfd_section->alignment_power = output->section_alignment; | |
74459f0e TW |
1144 | |
1145 | if (section->flags & SEC_BLOCK) | |
08da4cac KH |
1146 | { |
1147 | section->output_section->flags |= SEC_BLOCK; | |
1148 | /* FIXME: This value should really be obtained from the bfd... */ | |
1149 | output->block_value = 128; | |
1150 | } | |
252b5132 RH |
1151 | } |
1152 | } | |
1153 | ||
1154 | /* Handle wildcard sorting. This returns the lang_input_section which | |
1155 | should follow the one we are going to create for SECTION and FILE, | |
1156 | based on the sorting requirements of WILD. It returns NULL if the | |
1157 | new section should just go at the end of the current list. */ | |
1158 | ||
1159 | static lang_statement_union_type * | |
1579bae1 AM |
1160 | wild_sort (lang_wild_statement_type *wild, |
1161 | struct wildcard_list *sec, | |
1162 | lang_input_statement_type *file, | |
1163 | asection *section) | |
252b5132 RH |
1164 | { |
1165 | const char *section_name; | |
1166 | lang_statement_union_type *l; | |
1167 | ||
b6bf44ba | 1168 | if (!wild->filenames_sorted && (sec == NULL || !sec->spec.sorted)) |
252b5132 RH |
1169 | return NULL; |
1170 | ||
1171 | section_name = bfd_get_section_name (file->the_bfd, section); | |
bba1a0c0 | 1172 | for (l = wild->children.head; l != NULL; l = l->header.next) |
252b5132 RH |
1173 | { |
1174 | lang_input_section_type *ls; | |
1175 | ||
1176 | if (l->header.type != lang_input_section_enum) | |
1177 | continue; | |
1178 | ls = &l->input_section; | |
1179 | ||
1180 | /* Sorting by filename takes precedence over sorting by section | |
1181 | name. */ | |
1182 | ||
1183 | if (wild->filenames_sorted) | |
1184 | { | |
1185 | const char *fn, *ln; | |
b34976b6 | 1186 | bfd_boolean fa, la; |
252b5132 RH |
1187 | int i; |
1188 | ||
1189 | /* The PE support for the .idata section as generated by | |
1190 | dlltool assumes that files will be sorted by the name of | |
1191 | the archive and then the name of the file within the | |
1192 | archive. */ | |
1193 | ||
1194 | if (file->the_bfd != NULL | |
1195 | && bfd_my_archive (file->the_bfd) != NULL) | |
1196 | { | |
1197 | fn = bfd_get_filename (bfd_my_archive (file->the_bfd)); | |
b34976b6 | 1198 | fa = TRUE; |
252b5132 RH |
1199 | } |
1200 | else | |
1201 | { | |
1202 | fn = file->filename; | |
b34976b6 | 1203 | fa = FALSE; |
252b5132 RH |
1204 | } |
1205 | ||
1206 | if (ls->ifile->the_bfd != NULL | |
1207 | && bfd_my_archive (ls->ifile->the_bfd) != NULL) | |
1208 | { | |
1209 | ln = bfd_get_filename (bfd_my_archive (ls->ifile->the_bfd)); | |
b34976b6 | 1210 | la = TRUE; |
252b5132 RH |
1211 | } |
1212 | else | |
1213 | { | |
1214 | ln = ls->ifile->filename; | |
b34976b6 | 1215 | la = FALSE; |
252b5132 RH |
1216 | } |
1217 | ||
1218 | i = strcmp (fn, ln); | |
1219 | if (i > 0) | |
1220 | continue; | |
1221 | else if (i < 0) | |
1222 | break; | |
1223 | ||
1224 | if (fa || la) | |
1225 | { | |
1226 | if (fa) | |
1227 | fn = file->filename; | |
1228 | if (la) | |
1229 | ln = ls->ifile->filename; | |
1230 | ||
1231 | i = strcmp (fn, ln); | |
1232 | if (i > 0) | |
1233 | continue; | |
1234 | else if (i < 0) | |
1235 | break; | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | /* Here either the files are not sorted by name, or we are | |
1240 | looking at the sections for this file. */ | |
1241 | ||
b6bf44ba | 1242 | if (sec != NULL && sec->spec.sorted) |
252b5132 RH |
1243 | { |
1244 | if (strcmp (section_name, | |
1245 | bfd_get_section_name (ls->ifile->the_bfd, | |
1246 | ls->section)) | |
1247 | < 0) | |
1248 | break; | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | return l; | |
1253 | } | |
1254 | ||
1255 | /* Expand a wild statement for a particular FILE. SECTION may be | |
1256 | NULL, in which case it is a wild card. */ | |
1257 | ||
1258 | static void | |
1579bae1 AM |
1259 | output_section_callback (lang_wild_statement_type *ptr, |
1260 | struct wildcard_list *sec, | |
1261 | asection *section, | |
1262 | lang_input_statement_type *file, | |
1263 | void *output) | |
4dec4d4e RH |
1264 | { |
1265 | lang_statement_union_type *before; | |
5f992e62 | 1266 | |
b6bf44ba AM |
1267 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
1268 | if (unique_section_p (bfd_get_section_name (file->the_bfd, section))) | |
1269 | return; | |
1270 | ||
4dec4d4e RH |
1271 | /* If the wild pattern was marked KEEP, the member sections |
1272 | should be as well. */ | |
1273 | if (ptr->keep_sections) | |
1274 | section->flags |= SEC_KEEP; | |
5f992e62 | 1275 | |
b6bf44ba | 1276 | before = wild_sort (ptr, sec, file, section); |
5f992e62 | 1277 | |
4dec4d4e RH |
1278 | /* Here BEFORE points to the lang_input_section which |
1279 | should follow the one we are about to add. If BEFORE | |
1280 | is NULL, then the section should just go at the end | |
1281 | of the current list. */ | |
5f992e62 | 1282 | |
4dec4d4e | 1283 | if (before == NULL) |
39dcfe18 AM |
1284 | lang_add_section (&ptr->children, section, |
1285 | (lang_output_section_statement_type *) output, | |
1286 | file); | |
4dec4d4e | 1287 | else |
252b5132 | 1288 | { |
4dec4d4e RH |
1289 | lang_statement_list_type list; |
1290 | lang_statement_union_type **pp; | |
5f992e62 | 1291 | |
4dec4d4e | 1292 | lang_list_init (&list); |
39dcfe18 AM |
1293 | lang_add_section (&list, section, |
1294 | (lang_output_section_statement_type *) output, | |
1295 | file); | |
5f992e62 | 1296 | |
4dec4d4e RH |
1297 | /* If we are discarding the section, LIST.HEAD will |
1298 | be NULL. */ | |
1299 | if (list.head != NULL) | |
252b5132 | 1300 | { |
bba1a0c0 | 1301 | ASSERT (list.head->header.next == NULL); |
5f992e62 | 1302 | |
4dec4d4e RH |
1303 | for (pp = &ptr->children.head; |
1304 | *pp != before; | |
bba1a0c0 | 1305 | pp = &(*pp)->header.next) |
4dec4d4e | 1306 | ASSERT (*pp != NULL); |
5f992e62 | 1307 | |
bba1a0c0 | 1308 | list.head->header.next = *pp; |
4dec4d4e | 1309 | *pp = list.head; |
252b5132 RH |
1310 | } |
1311 | } | |
1312 | } | |
1313 | ||
1314 | /* This is passed a file name which must have been seen already and | |
1315 | added to the statement tree. We will see if it has been opened | |
1316 | already and had its symbols read. If not then we'll read it. */ | |
1317 | ||
1318 | static lang_input_statement_type * | |
1579bae1 | 1319 | lookup_name (const char *name) |
252b5132 RH |
1320 | { |
1321 | lang_input_statement_type *search; | |
1322 | ||
1323 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
1579bae1 | 1324 | search != NULL; |
252b5132 RH |
1325 | search = (lang_input_statement_type *) search->next_real_file) |
1326 | { | |
0013291d NC |
1327 | /* Use the local_sym_name as the name of the file that has |
1328 | already been loaded as filename might have been transformed | |
1329 | via the search directory lookup mechanism. */ | |
1330 | const char * filename = search->local_sym_name; | |
1331 | ||
1332 | if (filename == NULL && name == NULL) | |
252b5132 | 1333 | return search; |
0013291d | 1334 | if (filename != NULL |
1579bae1 | 1335 | && name != NULL |
0013291d | 1336 | && strcmp (filename, name) == 0) |
252b5132 RH |
1337 | break; |
1338 | } | |
1339 | ||
1579bae1 | 1340 | if (search == NULL) |
0013291d | 1341 | search = new_afile (name, lang_input_file_is_search_file_enum, default_target, |
b34976b6 | 1342 | FALSE); |
252b5132 RH |
1343 | |
1344 | /* If we have already added this file, or this file is not real | |
1345 | (FIXME: can that ever actually happen?) or the name is NULL | |
1346 | (FIXME: can that ever actually happen?) don't add this file. */ | |
1347 | if (search->loaded | |
1348 | || ! search->real | |
1579bae1 | 1349 | || search->filename == NULL) |
252b5132 RH |
1350 | return search; |
1351 | ||
1579bae1 | 1352 | if (! load_symbols (search, NULL)) |
6770ec8c | 1353 | return NULL; |
252b5132 RH |
1354 | |
1355 | return search; | |
1356 | } | |
1357 | ||
1358 | /* Get the symbols for an input file. */ | |
1359 | ||
b34976b6 | 1360 | static bfd_boolean |
1579bae1 AM |
1361 | load_symbols (lang_input_statement_type *entry, |
1362 | lang_statement_list_type *place) | |
252b5132 RH |
1363 | { |
1364 | char **matching; | |
1365 | ||
1366 | if (entry->loaded) | |
b34976b6 | 1367 | return TRUE; |
252b5132 RH |
1368 | |
1369 | ldfile_open_file (entry); | |
1370 | ||
1371 | if (! bfd_check_format (entry->the_bfd, bfd_archive) | |
1372 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
1373 | { | |
1374 | bfd_error_type err; | |
1375 | lang_statement_list_type *hold; | |
b34976b6 | 1376 | bfd_boolean bad_load = TRUE; |
e3f2db7f | 1377 | bfd_boolean save_ldlang_sysrooted_script; |
b7a26f91 | 1378 | |
252b5132 | 1379 | err = bfd_get_error (); |
884fb58e NC |
1380 | |
1381 | /* See if the emulation has some special knowledge. */ | |
1382 | if (ldemul_unrecognized_file (entry)) | |
b34976b6 | 1383 | return TRUE; |
884fb58e | 1384 | |
252b5132 RH |
1385 | if (err == bfd_error_file_ambiguously_recognized) |
1386 | { | |
1387 | char **p; | |
1388 | ||
1389 | einfo (_("%B: file not recognized: %E\n"), entry->the_bfd); | |
1390 | einfo (_("%B: matching formats:"), entry->the_bfd); | |
1391 | for (p = matching; *p != NULL; p++) | |
1392 | einfo (" %s", *p); | |
1393 | einfo ("%F\n"); | |
1394 | } | |
1395 | else if (err != bfd_error_file_not_recognized | |
1396 | || place == NULL) | |
6770ec8c NC |
1397 | einfo (_("%F%B: file not recognized: %E\n"), entry->the_bfd); |
1398 | else | |
b34976b6 | 1399 | bad_load = FALSE; |
b7a26f91 | 1400 | |
252b5132 RH |
1401 | bfd_close (entry->the_bfd); |
1402 | entry->the_bfd = NULL; | |
1403 | ||
252b5132 | 1404 | /* Try to interpret the file as a linker script. */ |
252b5132 RH |
1405 | ldfile_open_command_file (entry->filename); |
1406 | ||
1407 | hold = stat_ptr; | |
1408 | stat_ptr = place; | |
e3f2db7f AO |
1409 | save_ldlang_sysrooted_script = ldlang_sysrooted_script; |
1410 | ldlang_sysrooted_script = entry->sysrooted; | |
252b5132 | 1411 | |
b34976b6 | 1412 | ldfile_assumed_script = TRUE; |
252b5132 RH |
1413 | parser_input = input_script; |
1414 | yyparse (); | |
b34976b6 | 1415 | ldfile_assumed_script = FALSE; |
252b5132 | 1416 | |
e3f2db7f | 1417 | ldlang_sysrooted_script = save_ldlang_sysrooted_script; |
252b5132 RH |
1418 | stat_ptr = hold; |
1419 | ||
6770ec8c | 1420 | return ! bad_load; |
252b5132 RH |
1421 | } |
1422 | ||
1423 | if (ldemul_recognized_file (entry)) | |
b34976b6 | 1424 | return TRUE; |
252b5132 RH |
1425 | |
1426 | /* We don't call ldlang_add_file for an archive. Instead, the | |
1427 | add_symbols entry point will call ldlang_add_file, via the | |
1428 | add_archive_element callback, for each element of the archive | |
1429 | which is used. */ | |
1430 | switch (bfd_get_format (entry->the_bfd)) | |
1431 | { | |
1432 | default: | |
1433 | break; | |
1434 | ||
1435 | case bfd_object: | |
1436 | ldlang_add_file (entry); | |
1437 | if (trace_files || trace_file_tries) | |
1438 | info_msg ("%I\n", entry); | |
1439 | break; | |
1440 | ||
1441 | case bfd_archive: | |
1442 | if (entry->whole_archive) | |
1443 | { | |
b7a26f91 | 1444 | bfd *member = NULL; |
b34976b6 | 1445 | bfd_boolean loaded = TRUE; |
6770ec8c NC |
1446 | |
1447 | for (;;) | |
252b5132 | 1448 | { |
6770ec8c NC |
1449 | member = bfd_openr_next_archived_file (entry->the_bfd, member); |
1450 | ||
1451 | if (member == NULL) | |
1452 | break; | |
b7a26f91 | 1453 | |
252b5132 | 1454 | if (! bfd_check_format (member, bfd_object)) |
6770ec8c NC |
1455 | { |
1456 | einfo (_("%F%B: member %B in archive is not an object\n"), | |
1457 | entry->the_bfd, member); | |
b34976b6 | 1458 | loaded = FALSE; |
6770ec8c NC |
1459 | } |
1460 | ||
252b5132 RH |
1461 | if (! ((*link_info.callbacks->add_archive_element) |
1462 | (&link_info, member, "--whole-archive"))) | |
1463 | abort (); | |
6770ec8c | 1464 | |
252b5132 | 1465 | if (! bfd_link_add_symbols (member, &link_info)) |
6770ec8c NC |
1466 | { |
1467 | einfo (_("%F%B: could not read symbols: %E\n"), member); | |
b34976b6 | 1468 | loaded = FALSE; |
6770ec8c | 1469 | } |
252b5132 RH |
1470 | } |
1471 | ||
6770ec8c NC |
1472 | entry->loaded = loaded; |
1473 | return loaded; | |
252b5132 | 1474 | } |
6770ec8c | 1475 | break; |
252b5132 RH |
1476 | } |
1477 | ||
03bdc404 | 1478 | if (bfd_link_add_symbols (entry->the_bfd, &link_info)) |
b34976b6 | 1479 | entry->loaded = TRUE; |
6770ec8c | 1480 | else |
252b5132 RH |
1481 | einfo (_("%F%B: could not read symbols: %E\n"), entry->the_bfd); |
1482 | ||
6770ec8c | 1483 | return entry->loaded; |
252b5132 RH |
1484 | } |
1485 | ||
b6bf44ba AM |
1486 | /* Handle a wild statement. S->FILENAME or S->SECTION_LIST or both |
1487 | may be NULL, indicating that it is a wildcard. Separate | |
1488 | lang_input_section statements are created for each part of the | |
1489 | expansion; they are added after the wild statement S. OUTPUT is | |
1490 | the output section. */ | |
252b5132 RH |
1491 | |
1492 | static void | |
1579bae1 AM |
1493 | wild (lang_wild_statement_type *s, |
1494 | const char *target ATTRIBUTE_UNUSED, | |
1495 | lang_output_section_statement_type *output) | |
252b5132 | 1496 | { |
b6bf44ba | 1497 | struct wildcard_list *sec; |
252b5132 | 1498 | |
1579bae1 | 1499 | walk_wild (s, output_section_callback, output); |
b6bf44ba AM |
1500 | |
1501 | for (sec = s->section_list; sec != NULL; sec = sec->next) | |
252b5132 | 1502 | { |
b6bf44ba AM |
1503 | if (default_common_section != NULL) |
1504 | break; | |
1505 | if (sec->spec.name != NULL && strcmp (sec->spec.name, "COMMON") == 0) | |
1506 | { | |
1507 | /* Remember the section that common is going to in case we | |
b7a26f91 | 1508 | later get something which doesn't know where to put it. */ |
b6bf44ba AM |
1509 | default_common_section = output; |
1510 | } | |
252b5132 RH |
1511 | } |
1512 | } | |
1513 | ||
b34976b6 | 1514 | /* Return TRUE iff target is the sought target. */ |
08da4cac | 1515 | |
e50d8076 | 1516 | static int |
1579bae1 | 1517 | get_target (const bfd_target *target, void *data) |
e50d8076 | 1518 | { |
1579bae1 | 1519 | const char *sought = data; |
5f992e62 | 1520 | |
e50d8076 NC |
1521 | return strcmp (target->name, sought) == 0; |
1522 | } | |
1523 | ||
1524 | /* Like strcpy() but convert to lower case as well. */ | |
08da4cac | 1525 | |
e50d8076 | 1526 | static void |
1579bae1 | 1527 | stricpy (char *dest, char *src) |
e50d8076 NC |
1528 | { |
1529 | char c; | |
5f992e62 | 1530 | |
08da4cac | 1531 | while ((c = *src++) != 0) |
3882b010 | 1532 | *dest++ = TOLOWER (c); |
e50d8076 | 1533 | |
08da4cac | 1534 | *dest = 0; |
e50d8076 NC |
1535 | } |
1536 | ||
396a2467 | 1537 | /* Remove the first occurrence of needle (if any) in haystack |
e50d8076 | 1538 | from haystack. */ |
08da4cac | 1539 | |
e50d8076 | 1540 | static void |
1579bae1 | 1541 | strcut (char *haystack, char *needle) |
e50d8076 NC |
1542 | { |
1543 | haystack = strstr (haystack, needle); | |
5f992e62 | 1544 | |
e50d8076 NC |
1545 | if (haystack) |
1546 | { | |
08da4cac | 1547 | char *src; |
e50d8076 | 1548 | |
08da4cac KH |
1549 | for (src = haystack + strlen (needle); *src;) |
1550 | *haystack++ = *src++; | |
5f992e62 | 1551 | |
08da4cac | 1552 | *haystack = 0; |
e50d8076 NC |
1553 | } |
1554 | } | |
1555 | ||
1556 | /* Compare two target format name strings. | |
1557 | Return a value indicating how "similar" they are. */ | |
08da4cac | 1558 | |
e50d8076 | 1559 | static int |
1579bae1 | 1560 | name_compare (char *first, char *second) |
e50d8076 | 1561 | { |
08da4cac KH |
1562 | char *copy1; |
1563 | char *copy2; | |
1564 | int result; | |
5f992e62 | 1565 | |
e50d8076 NC |
1566 | copy1 = xmalloc (strlen (first) + 1); |
1567 | copy2 = xmalloc (strlen (second) + 1); | |
1568 | ||
1569 | /* Convert the names to lower case. */ | |
1570 | stricpy (copy1, first); | |
1571 | stricpy (copy2, second); | |
1572 | ||
1579bae1 | 1573 | /* Remove size and endian strings from the name. */ |
e50d8076 NC |
1574 | strcut (copy1, "big"); |
1575 | strcut (copy1, "little"); | |
1576 | strcut (copy2, "big"); | |
1577 | strcut (copy2, "little"); | |
1578 | ||
1579 | /* Return a value based on how many characters match, | |
1580 | starting from the beginning. If both strings are | |
1581 | the same then return 10 * their length. */ | |
08da4cac KH |
1582 | for (result = 0; copy1[result] == copy2[result]; result++) |
1583 | if (copy1[result] == 0) | |
e50d8076 NC |
1584 | { |
1585 | result *= 10; | |
1586 | break; | |
1587 | } | |
5f992e62 | 1588 | |
e50d8076 NC |
1589 | free (copy1); |
1590 | free (copy2); | |
1591 | ||
1592 | return result; | |
1593 | } | |
1594 | ||
1595 | /* Set by closest_target_match() below. */ | |
08da4cac | 1596 | static const bfd_target *winner; |
e50d8076 NC |
1597 | |
1598 | /* Scan all the valid bfd targets looking for one that has the endianness | |
1599 | requirement that was specified on the command line, and is the nearest | |
1600 | match to the original output target. */ | |
08da4cac | 1601 | |
e50d8076 | 1602 | static int |
1579bae1 | 1603 | closest_target_match (const bfd_target *target, void *data) |
e50d8076 | 1604 | { |
1579bae1 | 1605 | const bfd_target *original = data; |
5f992e62 | 1606 | |
08da4cac KH |
1607 | if (command_line.endian == ENDIAN_BIG |
1608 | && target->byteorder != BFD_ENDIAN_BIG) | |
e50d8076 | 1609 | return 0; |
5f992e62 | 1610 | |
08da4cac KH |
1611 | if (command_line.endian == ENDIAN_LITTLE |
1612 | && target->byteorder != BFD_ENDIAN_LITTLE) | |
e50d8076 NC |
1613 | return 0; |
1614 | ||
1615 | /* Must be the same flavour. */ | |
1616 | if (target->flavour != original->flavour) | |
1617 | return 0; | |
1618 | ||
1619 | /* If we have not found a potential winner yet, then record this one. */ | |
1620 | if (winner == NULL) | |
1621 | { | |
1622 | winner = target; | |
1623 | return 0; | |
1624 | } | |
1625 | ||
1626 | /* Oh dear, we now have two potential candidates for a successful match. | |
4de2d33d | 1627 | Compare their names and choose the better one. */ |
d1778b88 AM |
1628 | if (name_compare (target->name, original->name) |
1629 | > name_compare (winner->name, original->name)) | |
e50d8076 NC |
1630 | winner = target; |
1631 | ||
1632 | /* Keep on searching until wqe have checked them all. */ | |
1633 | return 0; | |
1634 | } | |
1635 | ||
1636 | /* Return the BFD target format of the first input file. */ | |
08da4cac | 1637 | |
e50d8076 | 1638 | static char * |
1579bae1 | 1639 | get_first_input_target (void) |
e50d8076 | 1640 | { |
08da4cac | 1641 | char *target = NULL; |
e50d8076 NC |
1642 | |
1643 | LANG_FOR_EACH_INPUT_STATEMENT (s) | |
1644 | { | |
1645 | if (s->header.type == lang_input_statement_enum | |
1646 | && s->real) | |
1647 | { | |
1648 | ldfile_open_file (s); | |
5f992e62 | 1649 | |
e50d8076 NC |
1650 | if (s->the_bfd != NULL |
1651 | && bfd_check_format (s->the_bfd, bfd_object)) | |
1652 | { | |
1653 | target = bfd_get_target (s->the_bfd); | |
5f992e62 | 1654 | |
e50d8076 NC |
1655 | if (target != NULL) |
1656 | break; | |
1657 | } | |
1658 | } | |
1659 | } | |
5f992e62 | 1660 | |
e50d8076 NC |
1661 | return target; |
1662 | } | |
1663 | ||
599917b8 | 1664 | const char * |
1579bae1 | 1665 | lang_get_output_target (void) |
599917b8 JJ |
1666 | { |
1667 | const char *target; | |
1668 | ||
1669 | /* Has the user told us which output format to use? */ | |
1579bae1 | 1670 | if (output_target != NULL) |
599917b8 JJ |
1671 | return output_target; |
1672 | ||
1673 | /* No - has the current target been set to something other than | |
1674 | the default? */ | |
1675 | if (current_target != default_target) | |
1676 | return current_target; | |
1677 | ||
1678 | /* No - can we determine the format of the first input file? */ | |
1679 | target = get_first_input_target (); | |
1680 | if (target != NULL) | |
1681 | return target; | |
1682 | ||
1683 | /* Failed - use the default output target. */ | |
1684 | return default_target; | |
1685 | } | |
1686 | ||
252b5132 RH |
1687 | /* Open the output file. */ |
1688 | ||
1689 | static bfd * | |
1579bae1 | 1690 | open_output (const char *name) |
252b5132 | 1691 | { |
08da4cac | 1692 | bfd *output; |
252b5132 | 1693 | |
599917b8 | 1694 | output_target = lang_get_output_target (); |
5f992e62 | 1695 | |
08da4cac KH |
1696 | /* Has the user requested a particular endianness on the command |
1697 | line? */ | |
e50d8076 NC |
1698 | if (command_line.endian != ENDIAN_UNSET) |
1699 | { | |
08da4cac | 1700 | const bfd_target *target; |
1b69a0bf | 1701 | enum bfd_endian desired_endian; |
e50d8076 NC |
1702 | |
1703 | /* Get the chosen target. */ | |
1579bae1 | 1704 | target = bfd_search_for_target (get_target, (void *) output_target); |
e50d8076 | 1705 | |
c13b1b77 NC |
1706 | /* If the target is not supported, we cannot do anything. */ |
1707 | if (target != NULL) | |
e50d8076 | 1708 | { |
c13b1b77 NC |
1709 | if (command_line.endian == ENDIAN_BIG) |
1710 | desired_endian = BFD_ENDIAN_BIG; | |
e50d8076 | 1711 | else |
c13b1b77 | 1712 | desired_endian = BFD_ENDIAN_LITTLE; |
5f992e62 AM |
1713 | |
1714 | /* See if the target has the wrong endianness. This should | |
1715 | not happen if the linker script has provided big and | |
1716 | little endian alternatives, but some scrips don't do | |
1717 | this. */ | |
c13b1b77 | 1718 | if (target->byteorder != desired_endian) |
e50d8076 | 1719 | { |
c13b1b77 NC |
1720 | /* If it does, then see if the target provides |
1721 | an alternative with the correct endianness. */ | |
1722 | if (target->alternative_target != NULL | |
1723 | && (target->alternative_target->byteorder == desired_endian)) | |
1724 | output_target = target->alternative_target->name; | |
e50d8076 | 1725 | else |
c13b1b77 | 1726 | { |
5f992e62 AM |
1727 | /* Try to find a target as similar as possible to |
1728 | the default target, but which has the desired | |
1729 | endian characteristic. */ | |
1579bae1 AM |
1730 | bfd_search_for_target (closest_target_match, |
1731 | (void *) target); | |
5f992e62 AM |
1732 | |
1733 | /* Oh dear - we could not find any targets that | |
1734 | satisfy our requirements. */ | |
c13b1b77 NC |
1735 | if (winner == NULL) |
1736 | einfo (_("%P: warning: could not find any targets that match endianness requirement\n")); | |
1737 | else | |
1738 | output_target = winner->name; | |
1739 | } | |
e50d8076 NC |
1740 | } |
1741 | } | |
252b5132 | 1742 | } |
5f992e62 | 1743 | |
252b5132 RH |
1744 | output = bfd_openw (name, output_target); |
1745 | ||
1579bae1 | 1746 | if (output == NULL) |
252b5132 RH |
1747 | { |
1748 | if (bfd_get_error () == bfd_error_invalid_target) | |
e50d8076 NC |
1749 | einfo (_("%P%F: target %s not found\n"), output_target); |
1750 | ||
252b5132 RH |
1751 | einfo (_("%P%F: cannot open output file %s: %E\n"), name); |
1752 | } | |
1753 | ||
b34976b6 | 1754 | delete_output_file_on_failure = TRUE; |
252b5132 | 1755 | |
08da4cac KH |
1756 | #if 0 |
1757 | output->flags |= D_PAGED; | |
1758 | #endif | |
252b5132 RH |
1759 | |
1760 | if (! bfd_set_format (output, bfd_object)) | |
1761 | einfo (_("%P%F:%s: can not make object file: %E\n"), name); | |
1762 | if (! bfd_set_arch_mach (output, | |
1763 | ldfile_output_architecture, | |
1764 | ldfile_output_machine)) | |
1765 | einfo (_("%P%F:%s: can not set architecture: %E\n"), name); | |
1766 | ||
1767 | link_info.hash = bfd_link_hash_table_create (output); | |
1579bae1 | 1768 | if (link_info.hash == NULL) |
252b5132 RH |
1769 | einfo (_("%P%F: can not create link hash table: %E\n")); |
1770 | ||
1771 | bfd_set_gp_size (output, g_switch_value); | |
1772 | return output; | |
1773 | } | |
1774 | ||
252b5132 | 1775 | static void |
1579bae1 | 1776 | ldlang_open_output (lang_statement_union_type *statement) |
252b5132 RH |
1777 | { |
1778 | switch (statement->header.type) | |
1779 | { | |
1780 | case lang_output_statement_enum: | |
1579bae1 | 1781 | ASSERT (output_bfd == NULL); |
252b5132 RH |
1782 | output_bfd = open_output (statement->output_statement.name); |
1783 | ldemul_set_output_arch (); | |
1049f94e | 1784 | if (config.magic_demand_paged && !link_info.relocatable) |
252b5132 RH |
1785 | output_bfd->flags |= D_PAGED; |
1786 | else | |
1787 | output_bfd->flags &= ~D_PAGED; | |
1788 | if (config.text_read_only) | |
1789 | output_bfd->flags |= WP_TEXT; | |
1790 | else | |
1791 | output_bfd->flags &= ~WP_TEXT; | |
1792 | if (link_info.traditional_format) | |
1793 | output_bfd->flags |= BFD_TRADITIONAL_FORMAT; | |
1794 | else | |
1795 | output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; | |
1796 | break; | |
1797 | ||
1798 | case lang_target_statement_enum: | |
1799 | current_target = statement->target_statement.target; | |
1800 | break; | |
1801 | default: | |
1802 | break; | |
1803 | } | |
1804 | } | |
1805 | ||
e5caa5e0 AM |
1806 | /* Convert between addresses in bytes and sizes in octets. |
1807 | For currently supported targets, octets_per_byte is always a power | |
1808 | of two, so we can use shifts. */ | |
1809 | #define TO_ADDR(X) ((X) >> opb_shift) | |
1810 | #define TO_SIZE(X) ((X) << opb_shift) | |
1811 | ||
1812 | /* Support the above. */ | |
1813 | static unsigned int opb_shift = 0; | |
1814 | ||
1815 | static void | |
1816 | init_opb (void) | |
1817 | { | |
1818 | unsigned x = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, | |
1819 | ldfile_output_machine); | |
1820 | opb_shift = 0; | |
1821 | if (x > 1) | |
1822 | while ((x & 1) == 0) | |
1823 | { | |
1824 | x >>= 1; | |
1825 | ++opb_shift; | |
1826 | } | |
1827 | ASSERT (x == 1); | |
1828 | } | |
1829 | ||
252b5132 RH |
1830 | /* Open all the input files. */ |
1831 | ||
1832 | static void | |
1579bae1 | 1833 | open_input_bfds (lang_statement_union_type *s, bfd_boolean force) |
252b5132 | 1834 | { |
1579bae1 | 1835 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
1836 | { |
1837 | switch (s->header.type) | |
1838 | { | |
1839 | case lang_constructors_statement_enum: | |
1840 | open_input_bfds (constructor_list.head, force); | |
1841 | break; | |
1842 | case lang_output_section_statement_enum: | |
1843 | open_input_bfds (s->output_section_statement.children.head, force); | |
1844 | break; | |
1845 | case lang_wild_statement_enum: | |
08da4cac | 1846 | /* Maybe we should load the file's symbols. */ |
252b5132 RH |
1847 | if (s->wild_statement.filename |
1848 | && ! wildcardp (s->wild_statement.filename)) | |
1849 | (void) lookup_name (s->wild_statement.filename); | |
1850 | open_input_bfds (s->wild_statement.children.head, force); | |
1851 | break; | |
1852 | case lang_group_statement_enum: | |
1853 | { | |
1854 | struct bfd_link_hash_entry *undefs; | |
1855 | ||
1856 | /* We must continually search the entries in the group | |
08da4cac KH |
1857 | until no new symbols are added to the list of undefined |
1858 | symbols. */ | |
252b5132 RH |
1859 | |
1860 | do | |
1861 | { | |
1862 | undefs = link_info.hash->undefs_tail; | |
b34976b6 | 1863 | open_input_bfds (s->group_statement.children.head, TRUE); |
252b5132 RH |
1864 | } |
1865 | while (undefs != link_info.hash->undefs_tail); | |
1866 | } | |
1867 | break; | |
1868 | case lang_target_statement_enum: | |
1869 | current_target = s->target_statement.target; | |
1870 | break; | |
1871 | case lang_input_statement_enum: | |
e50d8076 | 1872 | if (s->input_statement.real) |
252b5132 RH |
1873 | { |
1874 | lang_statement_list_type add; | |
1875 | ||
1876 | s->input_statement.target = current_target; | |
1877 | ||
1878 | /* If we are being called from within a group, and this | |
1879 | is an archive which has already been searched, then | |
cd4c806a L |
1880 | force it to be researched unless the whole archive |
1881 | has been loaded already. */ | |
252b5132 | 1882 | if (force |
cd4c806a | 1883 | && !s->input_statement.whole_archive |
252b5132 RH |
1884 | && s->input_statement.loaded |
1885 | && bfd_check_format (s->input_statement.the_bfd, | |
1886 | bfd_archive)) | |
b34976b6 | 1887 | s->input_statement.loaded = FALSE; |
252b5132 | 1888 | |
d1778b88 | 1889 | lang_list_init (&add); |
1276aefa | 1890 | |
6770ec8c | 1891 | if (! load_symbols (&s->input_statement, &add)) |
b34976b6 | 1892 | config.make_executable = FALSE; |
252b5132 RH |
1893 | |
1894 | if (add.head != NULL) | |
1895 | { | |
bba1a0c0 AM |
1896 | *add.tail = s->header.next; |
1897 | s->header.next = add.head; | |
252b5132 RH |
1898 | } |
1899 | } | |
1900 | break; | |
1901 | default: | |
1902 | break; | |
1903 | } | |
1904 | } | |
1905 | } | |
1906 | ||
08da4cac KH |
1907 | /* If there are [COMMONS] statements, put a wild one into the bss |
1908 | section. */ | |
252b5132 RH |
1909 | |
1910 | static void | |
1579bae1 | 1911 | lang_reasonable_defaults (void) |
252b5132 RH |
1912 | { |
1913 | #if 0 | |
1914 | lang_output_section_statement_lookup (".text"); | |
1915 | lang_output_section_statement_lookup (".data"); | |
1916 | ||
08da4cac | 1917 | default_common_section = lang_output_section_statement_lookup (".bss"); |
252b5132 | 1918 | |
7c519c12 | 1919 | if (!placed_commons) |
252b5132 RH |
1920 | { |
1921 | lang_wild_statement_type *new = | |
1922 | new_stat (lang_wild_statement, | |
1923 | &default_common_section->children); | |
1924 | ||
1925 | new->section_name = "COMMON"; | |
1579bae1 | 1926 | new->filename = NULL; |
252b5132 RH |
1927 | lang_list_init (&new->children); |
1928 | } | |
1929 | #endif | |
252b5132 RH |
1930 | } |
1931 | ||
420e579c HPN |
1932 | /* Add a symbol to a hash of symbols used in DEFINED (NAME) expressions. */ |
1933 | ||
1934 | void | |
1935 | lang_track_definedness (const char *name) | |
1936 | { | |
1937 | if (bfd_hash_lookup (&lang_definedness_table, name, TRUE, FALSE) == NULL) | |
1938 | einfo (_("%P%F: bfd_hash_lookup failed creating symbol %s\n"), name); | |
1939 | } | |
1940 | ||
1941 | /* New-function for the definedness hash table. */ | |
1942 | ||
1943 | static struct bfd_hash_entry * | |
1944 | lang_definedness_newfunc (struct bfd_hash_entry *entry, | |
1945 | struct bfd_hash_table *table ATTRIBUTE_UNUSED, | |
1946 | const char *name ATTRIBUTE_UNUSED) | |
1947 | { | |
1948 | struct lang_definedness_hash_entry *ret | |
1949 | = (struct lang_definedness_hash_entry *) entry; | |
1950 | ||
1951 | if (ret == NULL) | |
1952 | ret = (struct lang_definedness_hash_entry *) | |
1953 | bfd_hash_allocate (table, sizeof (struct lang_definedness_hash_entry)); | |
1954 | ||
1955 | if (ret == NULL) | |
1956 | einfo (_("%P%F: bfd_hash_allocate failed creating symbol %s\n"), name); | |
1957 | ||
1958 | ret->iteration = -1; | |
1959 | return &ret->root; | |
1960 | } | |
1961 | ||
1962 | /* Return the iteration when the definition of NAME was last updated. A | |
1963 | value of -1 means that the symbol is not defined in the linker script | |
1964 | or the command line, but may be defined in the linker symbol table. */ | |
1965 | ||
1966 | int | |
1967 | lang_symbol_definition_iteration (const char *name) | |
1968 | { | |
1969 | struct lang_definedness_hash_entry *defentry | |
1970 | = (struct lang_definedness_hash_entry *) | |
1971 | bfd_hash_lookup (&lang_definedness_table, name, FALSE, FALSE); | |
1972 | ||
1973 | /* We've already created this one on the presence of DEFINED in the | |
1974 | script, so it can't be NULL unless something is borked elsewhere in | |
1975 | the code. */ | |
1976 | if (defentry == NULL) | |
1977 | FAIL (); | |
1978 | ||
1979 | return defentry->iteration; | |
1980 | } | |
1981 | ||
1982 | /* Update the definedness state of NAME. */ | |
1983 | ||
1984 | void | |
1985 | lang_update_definedness (const char *name, struct bfd_link_hash_entry *h) | |
1986 | { | |
1987 | struct lang_definedness_hash_entry *defentry | |
1988 | = (struct lang_definedness_hash_entry *) | |
1989 | bfd_hash_lookup (&lang_definedness_table, name, FALSE, FALSE); | |
1990 | ||
1991 | /* We don't keep track of symbols not tested with DEFINED. */ | |
1992 | if (defentry == NULL) | |
1993 | return; | |
1994 | ||
1995 | /* If the symbol was already defined, and not from an earlier statement | |
1996 | iteration, don't update the definedness iteration, because that'd | |
1997 | make the symbol seem defined in the linker script at this point, and | |
1998 | it wasn't; it was defined in some object. If we do anyway, DEFINED | |
1999 | would start to yield false before this point and the construct "sym = | |
2000 | DEFINED (sym) ? sym : X;" would change sym to X despite being defined | |
2001 | in an object. */ | |
2002 | if (h->type != bfd_link_hash_undefined | |
2003 | && h->type != bfd_link_hash_common | |
2004 | && h->type != bfd_link_hash_new | |
2005 | && defentry->iteration == -1) | |
2006 | return; | |
2007 | ||
2008 | defentry->iteration = lang_statement_iteration; | |
2009 | } | |
2010 | ||
08da4cac | 2011 | /* Add the supplied name to the symbol table as an undefined reference. |
fcf0e35b AM |
2012 | This is a two step process as the symbol table doesn't even exist at |
2013 | the time the ld command line is processed. First we put the name | |
2014 | on a list, then, once the output file has been opened, transfer the | |
2015 | name to the symbol table. */ | |
2016 | ||
e3e942e9 | 2017 | typedef struct bfd_sym_chain ldlang_undef_chain_list_type; |
252b5132 | 2018 | |
e3e942e9 | 2019 | #define ldlang_undef_chain_list_head entry_symbol.next |
252b5132 RH |
2020 | |
2021 | void | |
1579bae1 | 2022 | ldlang_add_undef (const char *const name) |
252b5132 RH |
2023 | { |
2024 | ldlang_undef_chain_list_type *new = | |
1579bae1 | 2025 | stat_alloc (sizeof (ldlang_undef_chain_list_type)); |
252b5132 RH |
2026 | |
2027 | new->next = ldlang_undef_chain_list_head; | |
2028 | ldlang_undef_chain_list_head = new; | |
2029 | ||
d1b2b2dc | 2030 | new->name = xstrdup (name); |
fcf0e35b AM |
2031 | |
2032 | if (output_bfd != NULL) | |
2033 | insert_undefined (new->name); | |
2034 | } | |
2035 | ||
2036 | /* Insert NAME as undefined in the symbol table. */ | |
2037 | ||
2038 | static void | |
1579bae1 | 2039 | insert_undefined (const char *name) |
fcf0e35b AM |
2040 | { |
2041 | struct bfd_link_hash_entry *h; | |
2042 | ||
b34976b6 | 2043 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, FALSE, TRUE); |
1579bae1 | 2044 | if (h == NULL) |
fcf0e35b AM |
2045 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); |
2046 | if (h->type == bfd_link_hash_new) | |
2047 | { | |
2048 | h->type = bfd_link_hash_undefined; | |
2049 | h->u.undef.abfd = NULL; | |
2050 | bfd_link_add_undef (link_info.hash, h); | |
2051 | } | |
252b5132 RH |
2052 | } |
2053 | ||
2054 | /* Run through the list of undefineds created above and place them | |
2055 | into the linker hash table as undefined symbols belonging to the | |
08da4cac KH |
2056 | script file. */ |
2057 | ||
252b5132 | 2058 | static void |
1579bae1 | 2059 | lang_place_undefineds (void) |
252b5132 RH |
2060 | { |
2061 | ldlang_undef_chain_list_type *ptr; | |
2062 | ||
1579bae1 AM |
2063 | for (ptr = ldlang_undef_chain_list_head; ptr != NULL; ptr = ptr->next) |
2064 | insert_undefined (ptr->name); | |
252b5132 RH |
2065 | } |
2066 | ||
396a2467 | 2067 | /* Open input files and attach to output sections. */ |
08da4cac | 2068 | |
252b5132 | 2069 | static void |
1579bae1 AM |
2070 | map_input_to_output_sections |
2071 | (lang_statement_union_type *s, const char *target, | |
2072 | lang_output_section_statement_type *output_section_statement) | |
252b5132 | 2073 | { |
1579bae1 | 2074 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
2075 | { |
2076 | switch (s->header.type) | |
2077 | { | |
252b5132 | 2078 | case lang_wild_statement_enum: |
b6bf44ba | 2079 | wild (&s->wild_statement, target, output_section_statement); |
abc6ab0a | 2080 | break; |
252b5132 RH |
2081 | case lang_constructors_statement_enum: |
2082 | map_input_to_output_sections (constructor_list.head, | |
2083 | target, | |
2084 | output_section_statement); | |
2085 | break; | |
2086 | case lang_output_section_statement_enum: | |
2087 | map_input_to_output_sections (s->output_section_statement.children.head, | |
2088 | target, | |
2089 | &s->output_section_statement); | |
2090 | break; | |
2091 | case lang_output_statement_enum: | |
2092 | break; | |
2093 | case lang_target_statement_enum: | |
2094 | target = s->target_statement.target; | |
2095 | break; | |
2096 | case lang_group_statement_enum: | |
2097 | map_input_to_output_sections (s->group_statement.children.head, | |
2098 | target, | |
2099 | output_section_statement); | |
2100 | break; | |
384d938f NS |
2101 | case lang_data_statement_enum: |
2102 | /* Make sure that any sections mentioned in the expression | |
2103 | are initialized. */ | |
2104 | exp_init_os (s->data_statement.exp); | |
2105 | /* FALLTHROUGH */ | |
252b5132 RH |
2106 | case lang_fill_statement_enum: |
2107 | case lang_input_section_enum: | |
2108 | case lang_object_symbols_statement_enum: | |
252b5132 RH |
2109 | case lang_reloc_statement_enum: |
2110 | case lang_padding_statement_enum: | |
2111 | case lang_input_statement_enum: | |
2112 | if (output_section_statement != NULL | |
2113 | && output_section_statement->bfd_section == NULL) | |
2114 | init_os (output_section_statement); | |
2115 | break; | |
2116 | case lang_assignment_statement_enum: | |
2117 | if (output_section_statement != NULL | |
2118 | && output_section_statement->bfd_section == NULL) | |
2119 | init_os (output_section_statement); | |
2120 | ||
2121 | /* Make sure that any sections mentioned in the assignment | |
08da4cac | 2122 | are initialized. */ |
252b5132 RH |
2123 | exp_init_os (s->assignment_statement.exp); |
2124 | break; | |
2125 | case lang_afile_asection_pair_statement_enum: | |
2126 | FAIL (); | |
2127 | break; | |
2128 | case lang_address_statement_enum: | |
08da4cac | 2129 | /* Mark the specified section with the supplied address. */ |
252b5132 RH |
2130 | { |
2131 | lang_output_section_statement_type *os = | |
2132 | lang_output_section_statement_lookup | |
2133 | (s->address_statement.section_name); | |
2134 | ||
2135 | if (os->bfd_section == NULL) | |
2136 | init_os (os); | |
2137 | os->addr_tree = s->address_statement.address; | |
2138 | } | |
2139 | break; | |
2140 | } | |
2141 | } | |
2142 | } | |
2143 | ||
4bd5a393 AM |
2144 | /* An output section might have been removed after its statement was |
2145 | added. For example, ldemul_before_allocation can remove dynamic | |
2146 | sections if they turn out to be not needed. Clean them up here. */ | |
2147 | ||
2148 | static void | |
1579bae1 | 2149 | strip_excluded_output_sections (void) |
4bd5a393 AM |
2150 | { |
2151 | lang_statement_union_type *u; | |
2152 | ||
2153 | for (u = lang_output_section_statement.head; | |
2154 | u != NULL; | |
2155 | u = u->output_section_statement.next) | |
2156 | { | |
2157 | lang_output_section_statement_type *os; | |
2158 | asection *s; | |
2159 | ||
2160 | os = &u->output_section_statement; | |
2161 | s = os->bfd_section; | |
2162 | if (s != NULL && (s->flags & SEC_EXCLUDE) != 0) | |
2163 | { | |
2164 | asection **p; | |
2165 | ||
2166 | os->bfd_section = NULL; | |
2167 | ||
2168 | for (p = &output_bfd->sections; *p; p = &(*p)->next) | |
2169 | if (*p == s) | |
2170 | { | |
2171 | bfd_section_list_remove (output_bfd, p); | |
2172 | output_bfd->section_count--; | |
2173 | break; | |
2174 | } | |
2175 | } | |
2176 | } | |
2177 | } | |
2178 | ||
252b5132 | 2179 | static void |
1579bae1 AM |
2180 | print_output_section_statement |
2181 | (lang_output_section_statement_type *output_section_statement) | |
252b5132 RH |
2182 | { |
2183 | asection *section = output_section_statement->bfd_section; | |
2184 | int len; | |
2185 | ||
2186 | if (output_section_statement != abs_output_section) | |
2187 | { | |
2188 | minfo ("\n%s", output_section_statement->name); | |
2189 | ||
2190 | if (section != NULL) | |
2191 | { | |
2192 | print_dot = section->vma; | |
2193 | ||
2194 | len = strlen (output_section_statement->name); | |
2195 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
2196 | { | |
2197 | print_nl (); | |
2198 | len = 0; | |
2199 | } | |
2200 | while (len < SECTION_NAME_MAP_LENGTH) | |
2201 | { | |
2202 | print_space (); | |
2203 | ++len; | |
2204 | } | |
2205 | ||
2206 | minfo ("0x%V %W", section->vma, section->_raw_size); | |
2207 | ||
2208 | if (output_section_statement->load_base != NULL) | |
2209 | { | |
2210 | bfd_vma addr; | |
2211 | ||
2212 | addr = exp_get_abs_int (output_section_statement->load_base, 0, | |
2213 | "load base", lang_final_phase_enum); | |
2214 | minfo (_(" load address 0x%V"), addr); | |
2215 | } | |
2216 | } | |
2217 | ||
2218 | print_nl (); | |
2219 | } | |
2220 | ||
2221 | print_statement_list (output_section_statement->children.head, | |
2222 | output_section_statement); | |
2223 | } | |
2224 | ||
2225 | static void | |
1579bae1 AM |
2226 | print_assignment (lang_assignment_statement_type *assignment, |
2227 | lang_output_section_statement_type *output_section) | |
252b5132 RH |
2228 | { |
2229 | int i; | |
2230 | etree_value_type result; | |
2231 | ||
2232 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2233 | print_space (); | |
2234 | ||
2235 | result = exp_fold_tree (assignment->exp->assign.src, output_section, | |
2236 | lang_final_phase_enum, print_dot, &print_dot); | |
2237 | if (result.valid_p) | |
7b17f854 RS |
2238 | { |
2239 | const char *dst; | |
2240 | bfd_vma value; | |
2241 | ||
2242 | value = result.value + result.section->bfd_section->vma; | |
2243 | dst = assignment->exp->assign.dst; | |
2244 | ||
2245 | minfo ("0x%V", value); | |
2246 | if (dst[0] == '.' && dst[1] == 0) | |
2247 | print_dot = value; | |
2248 | } | |
252b5132 RH |
2249 | else |
2250 | { | |
2251 | minfo ("*undef* "); | |
2252 | #ifdef BFD64 | |
2253 | minfo (" "); | |
2254 | #endif | |
2255 | } | |
2256 | ||
2257 | minfo (" "); | |
2258 | ||
2259 | exp_print_tree (assignment->exp); | |
2260 | ||
2261 | print_nl (); | |
2262 | } | |
2263 | ||
2264 | static void | |
1579bae1 | 2265 | print_input_statement (lang_input_statement_type *statm) |
252b5132 | 2266 | { |
1579bae1 | 2267 | if (statm->filename != NULL) |
252b5132 RH |
2268 | { |
2269 | fprintf (config.map_file, "LOAD %s\n", statm->filename); | |
2270 | } | |
2271 | } | |
2272 | ||
2273 | /* Print all symbols defined in a particular section. This is called | |
2274 | via bfd_link_hash_traverse. */ | |
2275 | ||
b34976b6 | 2276 | static bfd_boolean |
1579bae1 | 2277 | print_one_symbol (struct bfd_link_hash_entry *hash_entry, void *ptr) |
252b5132 | 2278 | { |
1579bae1 | 2279 | asection *sec = ptr; |
252b5132 RH |
2280 | |
2281 | if ((hash_entry->type == bfd_link_hash_defined | |
2282 | || hash_entry->type == bfd_link_hash_defweak) | |
2283 | && sec == hash_entry->u.def.section) | |
2284 | { | |
2285 | int i; | |
2286 | ||
2287 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2288 | print_space (); | |
2289 | minfo ("0x%V ", | |
2290 | (hash_entry->u.def.value | |
2291 | + hash_entry->u.def.section->output_offset | |
2292 | + hash_entry->u.def.section->output_section->vma)); | |
2293 | ||
2294 | minfo (" %T\n", hash_entry->root.string); | |
2295 | } | |
2296 | ||
b34976b6 | 2297 | return TRUE; |
252b5132 RH |
2298 | } |
2299 | ||
2300 | /* Print information about an input section to the map file. */ | |
2301 | ||
2302 | static void | |
1579bae1 | 2303 | print_input_section (lang_input_section_type *in) |
252b5132 RH |
2304 | { |
2305 | asection *i = in->section; | |
2306 | bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size; | |
e5caa5e0 AM |
2307 | |
2308 | init_opb (); | |
252b5132 RH |
2309 | if (size != 0) |
2310 | { | |
2311 | print_space (); | |
2312 | ||
2313 | minfo ("%s", i->name); | |
2314 | ||
2315 | if (i->output_section != NULL) | |
2316 | { | |
2317 | int len; | |
2318 | ||
2319 | len = 1 + strlen (i->name); | |
2320 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
2321 | { | |
2322 | print_nl (); | |
2323 | len = 0; | |
2324 | } | |
2325 | while (len < SECTION_NAME_MAP_LENGTH) | |
2326 | { | |
2327 | print_space (); | |
2328 | ++len; | |
2329 | } | |
2330 | ||
2331 | minfo ("0x%V %W %B\n", | |
e5caa5e0 | 2332 | i->output_section->vma + i->output_offset, TO_ADDR (size), |
252b5132 RH |
2333 | i->owner); |
2334 | ||
2335 | if (i->_cooked_size != 0 && i->_cooked_size != i->_raw_size) | |
2336 | { | |
2337 | len = SECTION_NAME_MAP_LENGTH + 3; | |
2338 | #ifdef BFD64 | |
2339 | len += 16; | |
2340 | #else | |
2341 | len += 8; | |
2342 | #endif | |
2343 | while (len > 0) | |
2344 | { | |
2345 | print_space (); | |
2346 | --len; | |
2347 | } | |
2348 | ||
2349 | minfo (_("%W (size before relaxing)\n"), i->_raw_size); | |
2350 | } | |
2351 | ||
1579bae1 | 2352 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, i); |
252b5132 | 2353 | |
e5caa5e0 AM |
2354 | print_dot = (i->output_section->vma + i->output_offset |
2355 | + TO_ADDR (size)); | |
252b5132 RH |
2356 | } |
2357 | } | |
2358 | } | |
2359 | ||
2360 | static void | |
1579bae1 | 2361 | print_fill_statement (lang_fill_statement_type *fill) |
252b5132 | 2362 | { |
2c382fb6 AM |
2363 | size_t size; |
2364 | unsigned char *p; | |
2365 | fputs (" FILL mask 0x", config.map_file); | |
2366 | for (p = fill->fill->data, size = fill->fill->size; size != 0; p++, size--) | |
2367 | fprintf (config.map_file, "%02x", *p); | |
2368 | fputs ("\n", config.map_file); | |
252b5132 RH |
2369 | } |
2370 | ||
2371 | static void | |
1579bae1 | 2372 | print_data_statement (lang_data_statement_type *data) |
252b5132 RH |
2373 | { |
2374 | int i; | |
2375 | bfd_vma addr; | |
2376 | bfd_size_type size; | |
2377 | const char *name; | |
2378 | ||
e5caa5e0 | 2379 | init_opb (); |
252b5132 RH |
2380 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
2381 | print_space (); | |
2382 | ||
2383 | addr = data->output_vma; | |
2384 | if (data->output_section != NULL) | |
2385 | addr += data->output_section->vma; | |
2386 | ||
2387 | switch (data->type) | |
2388 | { | |
2389 | default: | |
2390 | abort (); | |
2391 | case BYTE: | |
2392 | size = BYTE_SIZE; | |
2393 | name = "BYTE"; | |
2394 | break; | |
2395 | case SHORT: | |
2396 | size = SHORT_SIZE; | |
2397 | name = "SHORT"; | |
2398 | break; | |
2399 | case LONG: | |
2400 | size = LONG_SIZE; | |
2401 | name = "LONG"; | |
2402 | break; | |
2403 | case QUAD: | |
2404 | size = QUAD_SIZE; | |
2405 | name = "QUAD"; | |
2406 | break; | |
2407 | case SQUAD: | |
2408 | size = QUAD_SIZE; | |
2409 | name = "SQUAD"; | |
2410 | break; | |
2411 | } | |
2412 | ||
2413 | minfo ("0x%V %W %s 0x%v", addr, size, name, data->value); | |
2414 | ||
2415 | if (data->exp->type.node_class != etree_value) | |
2416 | { | |
2417 | print_space (); | |
2418 | exp_print_tree (data->exp); | |
2419 | } | |
2420 | ||
2421 | print_nl (); | |
2422 | ||
e5caa5e0 | 2423 | print_dot = addr + TO_ADDR (size); |
252b5132 RH |
2424 | } |
2425 | ||
2426 | /* Print an address statement. These are generated by options like | |
2427 | -Ttext. */ | |
2428 | ||
2429 | static void | |
1579bae1 | 2430 | print_address_statement (lang_address_statement_type *address) |
252b5132 RH |
2431 | { |
2432 | minfo (_("Address of section %s set to "), address->section_name); | |
2433 | exp_print_tree (address->address); | |
2434 | print_nl (); | |
2435 | } | |
2436 | ||
2437 | /* Print a reloc statement. */ | |
2438 | ||
2439 | static void | |
1579bae1 | 2440 | print_reloc_statement (lang_reloc_statement_type *reloc) |
252b5132 RH |
2441 | { |
2442 | int i; | |
2443 | bfd_vma addr; | |
2444 | bfd_size_type size; | |
2445 | ||
e5caa5e0 | 2446 | init_opb (); |
252b5132 RH |
2447 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
2448 | print_space (); | |
2449 | ||
2450 | addr = reloc->output_vma; | |
2451 | if (reloc->output_section != NULL) | |
2452 | addr += reloc->output_section->vma; | |
2453 | ||
2454 | size = bfd_get_reloc_size (reloc->howto); | |
2455 | ||
2456 | minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name); | |
2457 | ||
2458 | if (reloc->name != NULL) | |
2459 | minfo ("%s+", reloc->name); | |
2460 | else | |
2461 | minfo ("%s+", reloc->section->name); | |
2462 | ||
2463 | exp_print_tree (reloc->addend_exp); | |
2464 | ||
2465 | print_nl (); | |
2466 | ||
e5caa5e0 | 2467 | print_dot = addr + TO_ADDR (size); |
5f992e62 | 2468 | } |
252b5132 RH |
2469 | |
2470 | static void | |
1579bae1 | 2471 | print_padding_statement (lang_padding_statement_type *s) |
252b5132 RH |
2472 | { |
2473 | int len; | |
2474 | bfd_vma addr; | |
2475 | ||
e5caa5e0 | 2476 | init_opb (); |
252b5132 RH |
2477 | minfo (" *fill*"); |
2478 | ||
2479 | len = sizeof " *fill*" - 1; | |
2480 | while (len < SECTION_NAME_MAP_LENGTH) | |
2481 | { | |
2482 | print_space (); | |
2483 | ++len; | |
2484 | } | |
2485 | ||
2486 | addr = s->output_offset; | |
2487 | if (s->output_section != NULL) | |
2488 | addr += s->output_section->vma; | |
2c382fb6 | 2489 | minfo ("0x%V %W ", addr, s->size); |
252b5132 | 2490 | |
2c382fb6 AM |
2491 | if (s->fill->size != 0) |
2492 | { | |
2493 | size_t size; | |
2494 | unsigned char *p; | |
2495 | for (p = s->fill->data, size = s->fill->size; size != 0; p++, size--) | |
2496 | fprintf (config.map_file, "%02x", *p); | |
2497 | } | |
252b5132 RH |
2498 | |
2499 | print_nl (); | |
2500 | ||
e5caa5e0 | 2501 | print_dot = addr + TO_ADDR (s->size); |
252b5132 RH |
2502 | } |
2503 | ||
2504 | static void | |
1579bae1 AM |
2505 | print_wild_statement (lang_wild_statement_type *w, |
2506 | lang_output_section_statement_type *os) | |
252b5132 | 2507 | { |
b6bf44ba AM |
2508 | struct wildcard_list *sec; |
2509 | ||
252b5132 RH |
2510 | print_space (); |
2511 | ||
2512 | if (w->filenames_sorted) | |
2513 | minfo ("SORT("); | |
08da4cac | 2514 | if (w->filename != NULL) |
252b5132 RH |
2515 | minfo ("%s", w->filename); |
2516 | else | |
2517 | minfo ("*"); | |
2518 | if (w->filenames_sorted) | |
2519 | minfo (")"); | |
2520 | ||
2521 | minfo ("("); | |
b6bf44ba AM |
2522 | for (sec = w->section_list; sec; sec = sec->next) |
2523 | { | |
2524 | if (sec->spec.sorted) | |
2525 | minfo ("SORT("); | |
2526 | if (sec->spec.exclude_name_list != NULL) | |
2527 | { | |
2528 | name_list *tmp; | |
34786259 | 2529 | minfo ("EXCLUDE_FILE(%s", sec->spec.exclude_name_list->name); |
b6bf44ba | 2530 | for (tmp = sec->spec.exclude_name_list->next; tmp; tmp = tmp->next) |
34786259 AM |
2531 | minfo (" %s", tmp->name); |
2532 | minfo (") "); | |
b6bf44ba AM |
2533 | } |
2534 | if (sec->spec.name != NULL) | |
2535 | minfo ("%s", sec->spec.name); | |
2536 | else | |
2537 | minfo ("*"); | |
2538 | if (sec->spec.sorted) | |
2539 | minfo (")"); | |
34786259 AM |
2540 | if (sec->next) |
2541 | minfo (" "); | |
b6bf44ba | 2542 | } |
252b5132 RH |
2543 | minfo (")"); |
2544 | ||
2545 | print_nl (); | |
2546 | ||
2547 | print_statement_list (w->children.head, os); | |
2548 | } | |
2549 | ||
2550 | /* Print a group statement. */ | |
2551 | ||
2552 | static void | |
1579bae1 AM |
2553 | print_group (lang_group_statement_type *s, |
2554 | lang_output_section_statement_type *os) | |
252b5132 RH |
2555 | { |
2556 | fprintf (config.map_file, "START GROUP\n"); | |
2557 | print_statement_list (s->children.head, os); | |
2558 | fprintf (config.map_file, "END GROUP\n"); | |
2559 | } | |
2560 | ||
2561 | /* Print the list of statements in S. | |
2562 | This can be called for any statement type. */ | |
2563 | ||
2564 | static void | |
1579bae1 AM |
2565 | print_statement_list (lang_statement_union_type *s, |
2566 | lang_output_section_statement_type *os) | |
252b5132 RH |
2567 | { |
2568 | while (s != NULL) | |
2569 | { | |
2570 | print_statement (s, os); | |
bba1a0c0 | 2571 | s = s->header.next; |
252b5132 RH |
2572 | } |
2573 | } | |
2574 | ||
2575 | /* Print the first statement in statement list S. | |
2576 | This can be called for any statement type. */ | |
2577 | ||
2578 | static void | |
1579bae1 AM |
2579 | print_statement (lang_statement_union_type *s, |
2580 | lang_output_section_statement_type *os) | |
252b5132 RH |
2581 | { |
2582 | switch (s->header.type) | |
2583 | { | |
2584 | default: | |
2585 | fprintf (config.map_file, _("Fail with %d\n"), s->header.type); | |
2586 | FAIL (); | |
2587 | break; | |
2588 | case lang_constructors_statement_enum: | |
2589 | if (constructor_list.head != NULL) | |
2590 | { | |
2591 | if (constructors_sorted) | |
2592 | minfo (" SORT (CONSTRUCTORS)\n"); | |
2593 | else | |
2594 | minfo (" CONSTRUCTORS\n"); | |
2595 | print_statement_list (constructor_list.head, os); | |
2596 | } | |
2597 | break; | |
2598 | case lang_wild_statement_enum: | |
2599 | print_wild_statement (&s->wild_statement, os); | |
2600 | break; | |
2601 | case lang_address_statement_enum: | |
2602 | print_address_statement (&s->address_statement); | |
2603 | break; | |
2604 | case lang_object_symbols_statement_enum: | |
2605 | minfo (" CREATE_OBJECT_SYMBOLS\n"); | |
2606 | break; | |
2607 | case lang_fill_statement_enum: | |
2608 | print_fill_statement (&s->fill_statement); | |
2609 | break; | |
2610 | case lang_data_statement_enum: | |
2611 | print_data_statement (&s->data_statement); | |
2612 | break; | |
2613 | case lang_reloc_statement_enum: | |
2614 | print_reloc_statement (&s->reloc_statement); | |
2615 | break; | |
2616 | case lang_input_section_enum: | |
2617 | print_input_section (&s->input_section); | |
2618 | break; | |
2619 | case lang_padding_statement_enum: | |
2620 | print_padding_statement (&s->padding_statement); | |
2621 | break; | |
2622 | case lang_output_section_statement_enum: | |
2623 | print_output_section_statement (&s->output_section_statement); | |
2624 | break; | |
2625 | case lang_assignment_statement_enum: | |
2626 | print_assignment (&s->assignment_statement, os); | |
2627 | break; | |
2628 | case lang_target_statement_enum: | |
2629 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
2630 | break; | |
2631 | case lang_output_statement_enum: | |
2632 | minfo ("OUTPUT(%s", s->output_statement.name); | |
2633 | if (output_target != NULL) | |
2634 | minfo (" %s", output_target); | |
2635 | minfo (")\n"); | |
2636 | break; | |
2637 | case lang_input_statement_enum: | |
2638 | print_input_statement (&s->input_statement); | |
2639 | break; | |
2640 | case lang_group_statement_enum: | |
2641 | print_group (&s->group_statement, os); | |
2642 | break; | |
2643 | case lang_afile_asection_pair_statement_enum: | |
2644 | FAIL (); | |
2645 | break; | |
2646 | } | |
2647 | } | |
2648 | ||
2649 | static void | |
1579bae1 | 2650 | print_statements (void) |
252b5132 RH |
2651 | { |
2652 | print_statement_list (statement_list.head, abs_output_section); | |
2653 | } | |
2654 | ||
2655 | /* Print the first N statements in statement list S to STDERR. | |
2656 | If N == 0, nothing is printed. | |
2657 | If N < 0, the entire list is printed. | |
2658 | Intended to be called from GDB. */ | |
2659 | ||
2660 | void | |
1579bae1 | 2661 | dprint_statement (lang_statement_union_type *s, int n) |
252b5132 RH |
2662 | { |
2663 | FILE *map_save = config.map_file; | |
2664 | ||
2665 | config.map_file = stderr; | |
2666 | ||
2667 | if (n < 0) | |
2668 | print_statement_list (s, abs_output_section); | |
2669 | else | |
2670 | { | |
2671 | while (s && --n >= 0) | |
2672 | { | |
2673 | print_statement (s, abs_output_section); | |
bba1a0c0 | 2674 | s = s->header.next; |
252b5132 RH |
2675 | } |
2676 | } | |
2677 | ||
2678 | config.map_file = map_save; | |
2679 | } | |
2680 | ||
b3327aad | 2681 | static void |
1579bae1 AM |
2682 | insert_pad (lang_statement_union_type **ptr, |
2683 | fill_type *fill, | |
2684 | unsigned int alignment_needed, | |
2685 | asection *output_section, | |
2686 | bfd_vma dot) | |
252b5132 | 2687 | { |
2c382fb6 | 2688 | static fill_type zero_fill = { 1, { 0 } }; |
b3327aad | 2689 | lang_statement_union_type *pad; |
b3327aad | 2690 | |
c0c330a7 | 2691 | pad = ((lang_statement_union_type *) |
2af02257 | 2692 | ((char *) ptr - offsetof (lang_statement_union_type, header.next))); |
b3327aad | 2693 | if (ptr != &statement_list.head |
2af02257 | 2694 | && pad->header.type == lang_padding_statement_enum |
b3327aad | 2695 | && pad->padding_statement.output_section == output_section) |
252b5132 | 2696 | { |
b3327aad AM |
2697 | /* Use the existing pad statement. The above test on output |
2698 | section is probably redundant, but it doesn't hurt to check. */ | |
252b5132 | 2699 | } |
b3327aad | 2700 | else |
252b5132 | 2701 | { |
b3327aad | 2702 | /* Make a new padding statement, linked into existing chain. */ |
1579bae1 | 2703 | pad = stat_alloc (sizeof (lang_padding_statement_type)); |
b3327aad AM |
2704 | pad->header.next = *ptr; |
2705 | *ptr = pad; | |
2706 | pad->header.type = lang_padding_statement_enum; | |
2707 | pad->padding_statement.output_section = output_section; | |
1579bae1 | 2708 | if (fill == NULL) |
2c382fb6 | 2709 | fill = &zero_fill; |
b3327aad | 2710 | pad->padding_statement.fill = fill; |
252b5132 | 2711 | } |
b3327aad AM |
2712 | pad->padding_statement.output_offset = dot - output_section->vma; |
2713 | pad->padding_statement.size = alignment_needed; | |
2714 | output_section->_raw_size += alignment_needed; | |
252b5132 RH |
2715 | } |
2716 | ||
08da4cac KH |
2717 | /* Work out how much this section will move the dot point. */ |
2718 | ||
252b5132 | 2719 | static bfd_vma |
1579bae1 AM |
2720 | size_input_section (lang_statement_union_type **this_ptr, |
2721 | lang_output_section_statement_type *output_section_statement, | |
2722 | fill_type *fill, | |
2723 | bfd_vma dot) | |
252b5132 RH |
2724 | { |
2725 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
2726 | asection *i = is->section; | |
2727 | ||
7c519c12 | 2728 | if (!is->ifile->just_syms_flag) |
252b5132 | 2729 | { |
b3327aad AM |
2730 | unsigned int alignment_needed; |
2731 | asection *o; | |
2732 | ||
2733 | /* Align this section first to the input sections requirement, | |
2734 | then to the output section's requirement. If this alignment | |
2735 | is greater than any seen before, then record it too. Perform | |
2736 | the alignment by inserting a magic 'padding' statement. */ | |
2737 | ||
252b5132 | 2738 | if (output_section_statement->subsection_alignment != -1) |
b3327aad AM |
2739 | i->alignment_power = output_section_statement->subsection_alignment; |
2740 | ||
2741 | o = output_section_statement->bfd_section; | |
2742 | if (o->alignment_power < i->alignment_power) | |
2743 | o->alignment_power = i->alignment_power; | |
252b5132 | 2744 | |
b3327aad AM |
2745 | alignment_needed = align_power (dot, i->alignment_power) - dot; |
2746 | ||
2747 | if (alignment_needed != 0) | |
2748 | { | |
e5caa5e0 | 2749 | insert_pad (this_ptr, fill, TO_SIZE (alignment_needed), o, dot); |
b3327aad AM |
2750 | dot += alignment_needed; |
2751 | } | |
252b5132 | 2752 | |
08da4cac | 2753 | /* Remember where in the output section this input section goes. */ |
252b5132 | 2754 | |
b3327aad | 2755 | i->output_offset = dot - o->vma; |
252b5132 | 2756 | |
08da4cac | 2757 | /* Mark how big the output section must be to contain this now. */ |
252b5132 | 2758 | if (i->_cooked_size != 0) |
e5caa5e0 | 2759 | dot += TO_ADDR (i->_cooked_size); |
252b5132 | 2760 | else |
e5caa5e0 AM |
2761 | dot += TO_ADDR (i->_raw_size); |
2762 | o->_raw_size = TO_SIZE (dot - o->vma); | |
252b5132 RH |
2763 | } |
2764 | else | |
2765 | { | |
2766 | i->output_offset = i->vma - output_section_statement->bfd_section->vma; | |
2767 | } | |
2768 | ||
2769 | return dot; | |
2770 | } | |
2771 | ||
33275c22 | 2772 | #define IGNORE_SECTION(bfd, s) \ |
8325c4dd AM |
2773 | (((bfd_get_section_flags (bfd, s) & (SEC_ALLOC | SEC_NEVER_LOAD)) \ |
2774 | != SEC_ALLOC) \ | |
33275c22 | 2775 | || bfd_section_size (bfd, s) == 0) |
d1778b88 | 2776 | |
252b5132 RH |
2777 | /* Check to see if any allocated sections overlap with other allocated |
2778 | sections. This can happen when the linker script specifically specifies | |
2779 | the output section addresses of the two sections. */ | |
08da4cac | 2780 | |
252b5132 | 2781 | static void |
1579bae1 | 2782 | lang_check_section_addresses (void) |
252b5132 | 2783 | { |
08da4cac | 2784 | asection *s; |
252b5132 RH |
2785 | |
2786 | /* Scan all sections in the output list. */ | |
2787 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
33275c22 | 2788 | { |
08da4cac | 2789 | asection *os; |
5f992e62 | 2790 | |
33275c22 NC |
2791 | /* Ignore sections which are not loaded or which have no contents. */ |
2792 | if (IGNORE_SECTION (output_bfd, s)) | |
2793 | continue; | |
5f992e62 | 2794 | |
33275c22 NC |
2795 | /* Once we reach section 's' stop our seach. This prevents two |
2796 | warning messages from being produced, one for 'section A overlaps | |
2797 | section B' and one for 'section B overlaps section A'. */ | |
2798 | for (os = output_bfd->sections; os != s; os = os->next) | |
2799 | { | |
2800 | bfd_vma s_start; | |
2801 | bfd_vma s_end; | |
2802 | bfd_vma os_start; | |
2803 | bfd_vma os_end; | |
5f992e62 | 2804 | |
33275c22 NC |
2805 | /* Only consider loadable sections with real contents. */ |
2806 | if (IGNORE_SECTION (output_bfd, os)) | |
2807 | continue; | |
252b5132 | 2808 | |
33275c22 NC |
2809 | /* We must check the sections' LMA addresses not their |
2810 | VMA addresses because overlay sections can have | |
2811 | overlapping VMAs but they must have distinct LMAs. */ | |
e5caa5e0 | 2812 | s_start = bfd_section_lma (output_bfd, s); |
33275c22 | 2813 | os_start = bfd_section_lma (output_bfd, os); |
e5caa5e0 AM |
2814 | s_end = s_start + TO_ADDR (bfd_section_size (output_bfd, s)) - 1; |
2815 | os_end = os_start + TO_ADDR (bfd_section_size (output_bfd, os)) - 1; | |
5f992e62 | 2816 | |
33275c22 NC |
2817 | /* Look for an overlap. */ |
2818 | if ((s_end < os_start) || (s_start > os_end)) | |
2819 | continue; | |
5f992e62 | 2820 | |
33275c22 | 2821 | einfo ( |
252b5132 | 2822 | _("%X%P: section %s [%V -> %V] overlaps section %s [%V -> %V]\n"), |
33275c22 | 2823 | s->name, s_start, s_end, os->name, os_start, os_end); |
5f992e62 | 2824 | |
33275c22 NC |
2825 | /* Once we have found one overlap for this section, |
2826 | stop looking for others. */ | |
2827 | break; | |
2828 | } | |
2829 | } | |
252b5132 RH |
2830 | } |
2831 | ||
562d3460 TW |
2832 | /* Make sure the new address is within the region. We explicitly permit the |
2833 | current address to be at the exact end of the region when the address is | |
2834 | non-zero, in case the region is at the end of addressable memory and the | |
5f992e62 | 2835 | calculation wraps around. */ |
562d3460 TW |
2836 | |
2837 | static void | |
1579bae1 | 2838 | os_region_check (lang_output_section_statement_type *os, |
6bdafbeb | 2839 | lang_memory_region_type *region, |
1579bae1 AM |
2840 | etree_type *tree, |
2841 | bfd_vma base) | |
562d3460 TW |
2842 | { |
2843 | if ((region->current < region->origin | |
2844 | || (region->current - region->origin > region->length)) | |
2845 | && ((region->current != region->origin + region->length) | |
b7a26f91 | 2846 | || base == 0)) |
562d3460 | 2847 | { |
1579bae1 | 2848 | if (tree != NULL) |
b7a26f91 KH |
2849 | { |
2850 | einfo (_("%X%P: address 0x%v of %B section %s is not within region %s\n"), | |
2851 | region->current, | |
2852 | os->bfd_section->owner, | |
2853 | os->bfd_section->name, | |
2854 | region->name); | |
2855 | } | |
562d3460 | 2856 | else |
b7a26f91 KH |
2857 | { |
2858 | einfo (_("%X%P: region %s is full (%B section %s)\n"), | |
2859 | region->name, | |
2860 | os->bfd_section->owner, | |
2861 | os->bfd_section->name); | |
2862 | } | |
562d3460 TW |
2863 | /* Reset the region pointer. */ |
2864 | region->current = region->origin; | |
2865 | } | |
2866 | } | |
2867 | ||
252b5132 RH |
2868 | /* Set the sizes for all the output sections. */ |
2869 | ||
2d20f7bf | 2870 | static bfd_vma |
1579bae1 AM |
2871 | lang_size_sections_1 |
2872 | (lang_statement_union_type *s, | |
2873 | lang_output_section_statement_type *output_section_statement, | |
2874 | lang_statement_union_type **prev, | |
2875 | fill_type *fill, | |
2876 | bfd_vma dot, | |
2877 | bfd_boolean *relax, | |
2878 | bfd_boolean check_regions) | |
252b5132 RH |
2879 | { |
2880 | /* Size up the sections from their constituent parts. */ | |
1579bae1 | 2881 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
2882 | { |
2883 | switch (s->header.type) | |
2884 | { | |
2885 | case lang_output_section_statement_enum: | |
2886 | { | |
2887 | bfd_vma after; | |
d1778b88 | 2888 | lang_output_section_statement_type *os; |
252b5132 | 2889 | |
d1778b88 | 2890 | os = &s->output_section_statement; |
252b5132 RH |
2891 | if (os->bfd_section == NULL) |
2892 | /* This section was never actually created. */ | |
2893 | break; | |
2894 | ||
2895 | /* If this is a COFF shared library section, use the size and | |
2896 | address from the input section. FIXME: This is COFF | |
2897 | specific; it would be cleaner if there were some other way | |
2898 | to do this, but nothing simple comes to mind. */ | |
2899 | if ((os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
2900 | { | |
08da4cac | 2901 | asection *input; |
252b5132 RH |
2902 | |
2903 | if (os->children.head == NULL | |
bba1a0c0 | 2904 | || os->children.head->header.next != NULL |
252b5132 RH |
2905 | || os->children.head->header.type != lang_input_section_enum) |
2906 | einfo (_("%P%X: Internal error on COFF shared library section %s\n"), | |
2907 | os->name); | |
2908 | ||
2909 | input = os->children.head->input_section.section; | |
2910 | bfd_set_section_vma (os->bfd_section->owner, | |
2911 | os->bfd_section, | |
2912 | bfd_section_vma (input->owner, input)); | |
2913 | os->bfd_section->_raw_size = input->_raw_size; | |
2914 | break; | |
2915 | } | |
2916 | ||
2917 | if (bfd_is_abs_section (os->bfd_section)) | |
2918 | { | |
2919 | /* No matter what happens, an abs section starts at zero. */ | |
2920 | ASSERT (os->bfd_section->vma == 0); | |
2921 | } | |
2922 | else | |
2923 | { | |
1579bae1 | 2924 | if (os->addr_tree == NULL) |
252b5132 RH |
2925 | { |
2926 | /* No address specified for this section, get one | |
2927 | from the region specification. */ | |
1579bae1 | 2928 | if (os->region == NULL |
252b5132 RH |
2929 | || (((bfd_get_section_flags (output_bfd, os->bfd_section) |
2930 | & (SEC_ALLOC | SEC_LOAD)) != 0) | |
2931 | && os->region->name[0] == '*' | |
a747ee4d | 2932 | && strcmp (os->region->name, DEFAULT_MEMORY_REGION) == 0)) |
252b5132 RH |
2933 | { |
2934 | os->region = lang_memory_default (os->bfd_section); | |
2935 | } | |
2936 | ||
2937 | /* If a loadable section is using the default memory | |
2938 | region, and some non default memory regions were | |
66184979 | 2939 | defined, issue an error message. */ |
a7f18fb3 | 2940 | if (!IGNORE_SECTION (output_bfd, os->bfd_section) |
1049f94e | 2941 | && ! link_info.relocatable |
cf888e70 | 2942 | && check_regions |
a747ee4d | 2943 | && strcmp (os->region->name, DEFAULT_MEMORY_REGION) == 0 |
252b5132 | 2944 | && lang_memory_region_list != NULL |
d1778b88 | 2945 | && (strcmp (lang_memory_region_list->name, |
a747ee4d | 2946 | DEFAULT_MEMORY_REGION) != 0 |
252b5132 | 2947 | || lang_memory_region_list->next != NULL)) |
66184979 NC |
2948 | { |
2949 | /* By default this is an error rather than just a | |
2950 | warning because if we allocate the section to the | |
2951 | default memory region we can end up creating an | |
07f3b6ad KH |
2952 | excessively large binary, or even seg faulting when |
2953 | attempting to perform a negative seek. See | |
1579bae1 | 2954 | http://sources.redhat.com/ml/binutils/2003-04/msg00423.html |
66184979 NC |
2955 | for an example of this. This behaviour can be |
2956 | overridden by the using the --no-check-sections | |
2957 | switch. */ | |
2958 | if (command_line.check_section_addresses) | |
2959 | einfo (_("%P%F: error: no memory region specified for loadable section `%s'\n"), | |
2960 | bfd_get_section_name (output_bfd, | |
2961 | os->bfd_section)); | |
2962 | else | |
2963 | einfo (_("%P: warning: no memory region specified for loadable section `%s'\n"), | |
2964 | bfd_get_section_name (output_bfd, | |
2965 | os->bfd_section)); | |
2966 | } | |
252b5132 RH |
2967 | |
2968 | dot = os->region->current; | |
5f992e62 | 2969 | |
252b5132 RH |
2970 | if (os->section_alignment == -1) |
2971 | { | |
2972 | bfd_vma olddot; | |
2973 | ||
2974 | olddot = dot; | |
d1778b88 AM |
2975 | dot = align_power (dot, |
2976 | os->bfd_section->alignment_power); | |
252b5132 RH |
2977 | |
2978 | if (dot != olddot && config.warn_section_align) | |
2979 | einfo (_("%P: warning: changing start of section %s by %u bytes\n"), | |
2980 | os->name, (unsigned int) (dot - olddot)); | |
2981 | } | |
2982 | } | |
2983 | else | |
2984 | { | |
2985 | etree_value_type r; | |
2986 | ||
2987 | r = exp_fold_tree (os->addr_tree, | |
2988 | abs_output_section, | |
2989 | lang_allocating_phase_enum, | |
2990 | dot, &dot); | |
7c519c12 AM |
2991 | if (!r.valid_p) |
2992 | einfo (_("%F%S: non constant address expression for section %s\n"), | |
2993 | os->name); | |
2994 | ||
252b5132 RH |
2995 | dot = r.value + r.section->bfd_section->vma; |
2996 | } | |
5f992e62 | 2997 | |
252b5132 RH |
2998 | /* The section starts here. |
2999 | First, align to what the section needs. */ | |
3000 | ||
3001 | if (os->section_alignment != -1) | |
3002 | dot = align_power (dot, os->section_alignment); | |
3003 | ||
3004 | bfd_set_section_vma (0, os->bfd_section, dot); | |
5f992e62 | 3005 | |
252b5132 RH |
3006 | os->bfd_section->output_offset = 0; |
3007 | } | |
3008 | ||
2d20f7bf | 3009 | lang_size_sections_1 (os->children.head, os, &os->children.head, |
cf888e70 | 3010 | os->fill, dot, relax, check_regions); |
5f992e62 | 3011 | |
08da4cac KH |
3012 | /* Put the section within the requested block size, or |
3013 | align at the block boundary. */ | |
e5caa5e0 AM |
3014 | after = ((os->bfd_section->vma |
3015 | + TO_ADDR (os->bfd_section->_raw_size) | |
3016 | + os->block_value - 1) | |
3017 | & - (bfd_vma) os->block_value); | |
252b5132 RH |
3018 | |
3019 | if (bfd_is_abs_section (os->bfd_section)) | |
3020 | ASSERT (after == os->bfd_section->vma); | |
13ae64f3 | 3021 | else if ((os->bfd_section->flags & SEC_HAS_CONTENTS) == 0 |
704afa60 | 3022 | && (os->bfd_section->flags & SEC_THREAD_LOCAL) |
1049f94e | 3023 | && ! link_info.relocatable) |
13ae64f3 | 3024 | os->bfd_section->_raw_size = 0; |
252b5132 | 3025 | else |
e5caa5e0 AM |
3026 | os->bfd_section->_raw_size |
3027 | = TO_SIZE (after - os->bfd_section->vma); | |
9f88b410 | 3028 | |
e5caa5e0 | 3029 | dot = os->bfd_section->vma + TO_ADDR (os->bfd_section->_raw_size); |
b34976b6 | 3030 | os->processed = TRUE; |
252b5132 | 3031 | |
9f88b410 RS |
3032 | if (os->update_dot_tree != 0) |
3033 | exp_fold_tree (os->update_dot_tree, abs_output_section, | |
3034 | lang_allocating_phase_enum, dot, &dot); | |
3035 | ||
252b5132 RH |
3036 | /* Update dot in the region ? |
3037 | We only do this if the section is going to be allocated, | |
3038 | since unallocated sections do not contribute to the region's | |
13392b77 | 3039 | overall size in memory. |
5f992e62 | 3040 | |
cce4c4c5 NC |
3041 | If the SEC_NEVER_LOAD bit is not set, it will affect the |
3042 | addresses of sections after it. We have to update | |
3043 | dot. */ | |
1579bae1 | 3044 | if (os->region != NULL |
cce4c4c5 NC |
3045 | && ((bfd_get_section_flags (output_bfd, os->bfd_section) |
3046 | & SEC_NEVER_LOAD) == 0 | |
3047 | || (bfd_get_section_flags (output_bfd, os->bfd_section) | |
3048 | & (SEC_ALLOC | SEC_LOAD)))) | |
252b5132 RH |
3049 | { |
3050 | os->region->current = dot; | |
5f992e62 | 3051 | |
cf888e70 NC |
3052 | if (check_regions) |
3053 | /* Make sure the new address is within the region. */ | |
3054 | os_region_check (os, os->region, os->addr_tree, | |
3055 | os->bfd_section->vma); | |
08da4cac KH |
3056 | |
3057 | /* If there's no load address specified, use the run | |
3058 | region as the load region. */ | |
3059 | if (os->lma_region == NULL && os->load_base == NULL) | |
3060 | os->lma_region = os->region; | |
3061 | ||
ee3cc2e2 | 3062 | if (os->lma_region != NULL && os->lma_region != os->region) |
08da4cac | 3063 | { |
ee3cc2e2 RS |
3064 | /* Set load_base, which will be handled later. */ |
3065 | os->load_base = exp_intop (os->lma_region->current); | |
3066 | os->lma_region->current += | |
e5caa5e0 | 3067 | TO_ADDR (os->bfd_section->_raw_size); |
cf888e70 NC |
3068 | if (check_regions) |
3069 | os_region_check (os, os->lma_region, NULL, | |
3070 | os->bfd_section->lma); | |
08da4cac | 3071 | } |
252b5132 RH |
3072 | } |
3073 | } | |
3074 | break; | |
3075 | ||
3076 | case lang_constructors_statement_enum: | |
2d20f7bf JJ |
3077 | dot = lang_size_sections_1 (constructor_list.head, |
3078 | output_section_statement, | |
3079 | &s->wild_statement.children.head, | |
cf888e70 | 3080 | fill, dot, relax, check_regions); |
252b5132 RH |
3081 | break; |
3082 | ||
3083 | case lang_data_statement_enum: | |
3084 | { | |
3085 | unsigned int size = 0; | |
3086 | ||
08da4cac KH |
3087 | s->data_statement.output_vma = |
3088 | dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
3089 | s->data_statement.output_section = |
3090 | output_section_statement->bfd_section; | |
3091 | ||
3092 | switch (s->data_statement.type) | |
3093 | { | |
08da4cac KH |
3094 | default: |
3095 | abort (); | |
252b5132 RH |
3096 | case QUAD: |
3097 | case SQUAD: | |
3098 | size = QUAD_SIZE; | |
3099 | break; | |
3100 | case LONG: | |
3101 | size = LONG_SIZE; | |
3102 | break; | |
3103 | case SHORT: | |
3104 | size = SHORT_SIZE; | |
3105 | break; | |
3106 | case BYTE: | |
3107 | size = BYTE_SIZE; | |
3108 | break; | |
3109 | } | |
e5caa5e0 AM |
3110 | if (size < TO_SIZE ((unsigned) 1)) |
3111 | size = TO_SIZE ((unsigned) 1); | |
3112 | dot += TO_ADDR (size); | |
252b5132 RH |
3113 | output_section_statement->bfd_section->_raw_size += size; |
3114 | /* The output section gets contents, and then we inspect for | |
3115 | any flags set in the input script which override any ALLOC. */ | |
3116 | output_section_statement->bfd_section->flags |= SEC_HAS_CONTENTS; | |
08da4cac KH |
3117 | if (!(output_section_statement->flags & SEC_NEVER_LOAD)) |
3118 | { | |
3119 | output_section_statement->bfd_section->flags |= | |
3120 | SEC_ALLOC | SEC_LOAD; | |
3121 | } | |
252b5132 RH |
3122 | } |
3123 | break; | |
3124 | ||
3125 | case lang_reloc_statement_enum: | |
3126 | { | |
3127 | int size; | |
3128 | ||
3129 | s->reloc_statement.output_vma = | |
3130 | dot - output_section_statement->bfd_section->vma; | |
3131 | s->reloc_statement.output_section = | |
3132 | output_section_statement->bfd_section; | |
3133 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
e5caa5e0 | 3134 | dot += TO_ADDR (size); |
252b5132 RH |
3135 | output_section_statement->bfd_section->_raw_size += size; |
3136 | } | |
3137 | break; | |
5f992e62 | 3138 | |
252b5132 RH |
3139 | case lang_wild_statement_enum: |
3140 | ||
2d20f7bf JJ |
3141 | dot = lang_size_sections_1 (s->wild_statement.children.head, |
3142 | output_section_statement, | |
3143 | &s->wild_statement.children.head, | |
cf888e70 | 3144 | fill, dot, relax, check_regions); |
252b5132 RH |
3145 | |
3146 | break; | |
3147 | ||
3148 | case lang_object_symbols_statement_enum: | |
3149 | link_info.create_object_symbols_section = | |
3150 | output_section_statement->bfd_section; | |
3151 | break; | |
3152 | case lang_output_statement_enum: | |
3153 | case lang_target_statement_enum: | |
3154 | break; | |
3155 | case lang_input_section_enum: | |
3156 | { | |
3157 | asection *i; | |
3158 | ||
3159 | i = (*prev)->input_section.section; | |
3160 | if (! relax) | |
3161 | { | |
3162 | if (i->_cooked_size == 0) | |
3163 | i->_cooked_size = i->_raw_size; | |
3164 | } | |
3165 | else | |
3166 | { | |
b34976b6 | 3167 | bfd_boolean again; |
252b5132 RH |
3168 | |
3169 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) | |
3170 | einfo (_("%P%F: can't relax section: %E\n")); | |
3171 | if (again) | |
b34976b6 | 3172 | *relax = TRUE; |
252b5132 | 3173 | } |
b3327aad AM |
3174 | dot = size_input_section (prev, output_section_statement, |
3175 | output_section_statement->fill, dot); | |
252b5132 RH |
3176 | } |
3177 | break; | |
3178 | case lang_input_statement_enum: | |
3179 | break; | |
3180 | case lang_fill_statement_enum: | |
08da4cac KH |
3181 | s->fill_statement.output_section = |
3182 | output_section_statement->bfd_section; | |
252b5132 RH |
3183 | |
3184 | fill = s->fill_statement.fill; | |
3185 | break; | |
3186 | case lang_assignment_statement_enum: | |
3187 | { | |
3188 | bfd_vma newdot = dot; | |
3189 | ||
3190 | exp_fold_tree (s->assignment_statement.exp, | |
3191 | output_section_statement, | |
3192 | lang_allocating_phase_enum, | |
3193 | dot, | |
3194 | &newdot); | |
3195 | ||
3196 | if (newdot != dot) | |
3197 | { | |
252b5132 RH |
3198 | if (output_section_statement == abs_output_section) |
3199 | { | |
3200 | /* If we don't have an output section, then just adjust | |
3201 | the default memory address. */ | |
a747ee4d | 3202 | lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE)->current = newdot; |
252b5132 | 3203 | } |
b3327aad | 3204 | else |
252b5132 | 3205 | { |
b3327aad AM |
3206 | /* Insert a pad after this statement. We can't |
3207 | put the pad before when relaxing, in case the | |
3208 | assignment references dot. */ | |
e5caa5e0 | 3209 | insert_pad (&s->header.next, fill, TO_SIZE (newdot - dot), |
b3327aad AM |
3210 | output_section_statement->bfd_section, dot); |
3211 | ||
3212 | /* Don't neuter the pad below when relaxing. */ | |
3213 | s = s->header.next; | |
252b5132 RH |
3214 | } |
3215 | ||
9dfc8ab2 NC |
3216 | /* If dot is advanced, this implies that the section should |
3217 | have space allocated to it, unless the user has explicitly | |
3218 | stated that the section should never be loaded. */ | |
3219 | if (!(output_section_statement->flags & (SEC_NEVER_LOAD | SEC_ALLOC))) | |
3220 | output_section_statement->bfd_section->flags |= SEC_ALLOC; | |
3221 | ||
252b5132 RH |
3222 | dot = newdot; |
3223 | } | |
3224 | } | |
3225 | break; | |
3226 | ||
3227 | case lang_padding_statement_enum: | |
c0c330a7 AM |
3228 | /* If this is the first time lang_size_sections is called, |
3229 | we won't have any padding statements. If this is the | |
3230 | second or later passes when relaxing, we should allow | |
3231 | padding to shrink. If padding is needed on this pass, it | |
3232 | will be added back in. */ | |
3233 | s->padding_statement.size = 0; | |
6e814ff8 AM |
3234 | |
3235 | /* Make sure output_offset is valid. If relaxation shrinks | |
3236 | the section and this pad isn't needed, it's possible to | |
3237 | have output_offset larger than the final size of the | |
3238 | section. bfd_set_section_contents will complain even for | |
3239 | a pad size of zero. */ | |
3240 | s->padding_statement.output_offset | |
3241 | = dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
3242 | break; |
3243 | ||
3244 | case lang_group_statement_enum: | |
2d20f7bf JJ |
3245 | dot = lang_size_sections_1 (s->group_statement.children.head, |
3246 | output_section_statement, | |
3247 | &s->group_statement.children.head, | |
cf888e70 | 3248 | fill, dot, relax, check_regions); |
252b5132 RH |
3249 | break; |
3250 | ||
3251 | default: | |
3252 | FAIL (); | |
3253 | break; | |
3254 | ||
c0c330a7 | 3255 | /* We can only get here when relaxing is turned on. */ |
252b5132 RH |
3256 | case lang_address_statement_enum: |
3257 | break; | |
3258 | } | |
3259 | prev = &s->header.next; | |
3260 | } | |
3261 | return dot; | |
3262 | } | |
3263 | ||
2d20f7bf | 3264 | bfd_vma |
1579bae1 AM |
3265 | lang_size_sections |
3266 | (lang_statement_union_type *s, | |
3267 | lang_output_section_statement_type *output_section_statement, | |
3268 | lang_statement_union_type **prev, | |
3269 | fill_type *fill, | |
3270 | bfd_vma dot, | |
3271 | bfd_boolean *relax, | |
3272 | bfd_boolean check_regions) | |
2d20f7bf JJ |
3273 | { |
3274 | bfd_vma result; | |
86d3c9a8 | 3275 | asection *o; |
2d20f7bf | 3276 | |
420e579c HPN |
3277 | /* Callers of exp_fold_tree need to increment this. */ |
3278 | lang_statement_iteration++; | |
3279 | ||
2d20f7bf JJ |
3280 | exp_data_seg.phase = exp_dataseg_none; |
3281 | result = lang_size_sections_1 (s, output_section_statement, prev, fill, | |
cf888e70 | 3282 | dot, relax, check_regions); |
2d20f7bf JJ |
3283 | if (exp_data_seg.phase == exp_dataseg_end_seen) |
3284 | { | |
3285 | /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_END pair was seen, check whether | |
3286 | a page could be saved in the data segment. */ | |
3287 | bfd_vma first, last; | |
3288 | ||
3289 | first = -exp_data_seg.base & (exp_data_seg.pagesize - 1); | |
3290 | last = exp_data_seg.end & (exp_data_seg.pagesize - 1); | |
3291 | if (first && last | |
3292 | && ((exp_data_seg.base & ~(exp_data_seg.pagesize - 1)) | |
3293 | != (exp_data_seg.end & ~(exp_data_seg.pagesize - 1))) | |
3294 | && first + last <= exp_data_seg.pagesize) | |
3295 | { | |
3296 | exp_data_seg.phase = exp_dataseg_adjust; | |
3297 | result = lang_size_sections_1 (s, output_section_statement, prev, | |
cf888e70 | 3298 | fill, dot, relax, check_regions); |
2d20f7bf JJ |
3299 | } |
3300 | } | |
3301 | ||
86d3c9a8 HPN |
3302 | /* Some backend relaxers want to refer to the output section size. Give |
3303 | them a section size that does not change on the next call while they | |
3304 | relax. We can't set this at top because lang_reset_memory_regions | |
3305 | which is called before we get here, sets _raw_size to 0 on relaxing | |
3306 | rounds. */ | |
3307 | for (o = output_bfd->sections; o != NULL; o = o->next) | |
3308 | o->_cooked_size = o->_raw_size; | |
3309 | ||
2d20f7bf JJ |
3310 | return result; |
3311 | } | |
3312 | ||
420e579c HPN |
3313 | /* Worker function for lang_do_assignments. Recursiveness goes here. */ |
3314 | ||
3315 | static bfd_vma | |
3316 | lang_do_assignments_1 | |
1579bae1 AM |
3317 | (lang_statement_union_type *s, |
3318 | lang_output_section_statement_type *output_section_statement, | |
3319 | fill_type *fill, | |
3320 | bfd_vma dot) | |
252b5132 | 3321 | { |
1579bae1 | 3322 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
3323 | { |
3324 | switch (s->header.type) | |
3325 | { | |
3326 | case lang_constructors_statement_enum: | |
420e579c HPN |
3327 | dot = lang_do_assignments_1 (constructor_list.head, |
3328 | output_section_statement, | |
3329 | fill, | |
3330 | dot); | |
252b5132 RH |
3331 | break; |
3332 | ||
3333 | case lang_output_section_statement_enum: | |
3334 | { | |
d1778b88 | 3335 | lang_output_section_statement_type *os; |
252b5132 | 3336 | |
d1778b88 | 3337 | os = &(s->output_section_statement); |
252b5132 RH |
3338 | if (os->bfd_section != NULL) |
3339 | { | |
3340 | dot = os->bfd_section->vma; | |
420e579c HPN |
3341 | (void) lang_do_assignments_1 (os->children.head, os, |
3342 | os->fill, dot); | |
e5caa5e0 AM |
3343 | dot = (os->bfd_section->vma |
3344 | + TO_ADDR (os->bfd_section->_raw_size)); | |
4cbfc3ac | 3345 | |
252b5132 | 3346 | } |
c13b1b77 | 3347 | if (os->load_base) |
252b5132 RH |
3348 | { |
3349 | /* If nothing has been placed into the output section then | |
4de2d33d | 3350 | it won't have a bfd_section. */ |
5f992e62 | 3351 | if (os->bfd_section) |
252b5132 | 3352 | { |
5f992e62 | 3353 | os->bfd_section->lma |
08da4cac KH |
3354 | = exp_get_abs_int (os->load_base, 0, "load base", |
3355 | lang_final_phase_enum); | |
252b5132 RH |
3356 | } |
3357 | } | |
3358 | } | |
3359 | break; | |
3360 | case lang_wild_statement_enum: | |
3361 | ||
420e579c HPN |
3362 | dot = lang_do_assignments_1 (s->wild_statement.children.head, |
3363 | output_section_statement, | |
3364 | fill, dot); | |
252b5132 RH |
3365 | |
3366 | break; | |
3367 | ||
3368 | case lang_object_symbols_statement_enum: | |
3369 | case lang_output_statement_enum: | |
3370 | case lang_target_statement_enum: | |
3371 | #if 0 | |
3372 | case lang_common_statement_enum: | |
3373 | #endif | |
3374 | break; | |
3375 | case lang_data_statement_enum: | |
3376 | { | |
3377 | etree_value_type value; | |
3378 | ||
3379 | value = exp_fold_tree (s->data_statement.exp, | |
3380 | abs_output_section, | |
3381 | lang_final_phase_enum, dot, &dot); | |
7c519c12 | 3382 | if (!value.valid_p) |
252b5132 | 3383 | einfo (_("%F%P: invalid data statement\n")); |
384d938f NS |
3384 | s->data_statement.value |
3385 | = value.value + value.section->bfd_section->vma; | |
252b5132 | 3386 | } |
b7a26f91 KH |
3387 | { |
3388 | unsigned int size; | |
08da4cac KH |
3389 | switch (s->data_statement.type) |
3390 | { | |
3391 | default: | |
3392 | abort (); | |
3393 | case QUAD: | |
3394 | case SQUAD: | |
3395 | size = QUAD_SIZE; | |
3396 | break; | |
3397 | case LONG: | |
3398 | size = LONG_SIZE; | |
3399 | break; | |
3400 | case SHORT: | |
3401 | size = SHORT_SIZE; | |
3402 | break; | |
3403 | case BYTE: | |
3404 | size = BYTE_SIZE; | |
3405 | break; | |
3406 | } | |
e5caa5e0 AM |
3407 | if (size < TO_SIZE ((unsigned) 1)) |
3408 | size = TO_SIZE ((unsigned) 1); | |
3409 | dot += TO_ADDR (size); | |
08da4cac | 3410 | } |
252b5132 RH |
3411 | break; |
3412 | ||
3413 | case lang_reloc_statement_enum: | |
3414 | { | |
3415 | etree_value_type value; | |
3416 | ||
3417 | value = exp_fold_tree (s->reloc_statement.addend_exp, | |
3418 | abs_output_section, | |
3419 | lang_final_phase_enum, dot, &dot); | |
3420 | s->reloc_statement.addend_value = value.value; | |
7c519c12 | 3421 | if (!value.valid_p) |
252b5132 RH |
3422 | einfo (_("%F%P: invalid reloc statement\n")); |
3423 | } | |
e5caa5e0 | 3424 | dot += TO_ADDR (bfd_get_reloc_size (s->reloc_statement.howto)); |
252b5132 RH |
3425 | break; |
3426 | ||
3427 | case lang_input_section_enum: | |
3428 | { | |
3429 | asection *in = s->input_section.section; | |
3430 | ||
3431 | if (in->_cooked_size != 0) | |
e5caa5e0 | 3432 | dot += TO_ADDR (in->_cooked_size); |
252b5132 | 3433 | else |
e5caa5e0 | 3434 | dot += TO_ADDR (in->_raw_size); |
252b5132 RH |
3435 | } |
3436 | break; | |
3437 | ||
3438 | case lang_input_statement_enum: | |
3439 | break; | |
3440 | case lang_fill_statement_enum: | |
3441 | fill = s->fill_statement.fill; | |
3442 | break; | |
3443 | case lang_assignment_statement_enum: | |
3444 | { | |
3445 | exp_fold_tree (s->assignment_statement.exp, | |
3446 | output_section_statement, | |
3447 | lang_final_phase_enum, | |
3448 | dot, | |
3449 | &dot); | |
3450 | } | |
3451 | ||
3452 | break; | |
3453 | case lang_padding_statement_enum: | |
e5caa5e0 | 3454 | dot += TO_ADDR (s->padding_statement.size); |
252b5132 RH |
3455 | break; |
3456 | ||
3457 | case lang_group_statement_enum: | |
420e579c HPN |
3458 | dot = lang_do_assignments_1 (s->group_statement.children.head, |
3459 | output_section_statement, | |
3460 | fill, dot); | |
252b5132 RH |
3461 | |
3462 | break; | |
3463 | ||
3464 | default: | |
3465 | FAIL (); | |
3466 | break; | |
3467 | case lang_address_statement_enum: | |
3468 | break; | |
3469 | } | |
3470 | ||
3471 | } | |
3472 | return dot; | |
3473 | } | |
3474 | ||
f2241121 | 3475 | void |
420e579c | 3476 | lang_do_assignments (lang_statement_union_type *s, |
e5caa5e0 | 3477 | lang_output_section_statement_type *output_section_statement, |
420e579c HPN |
3478 | fill_type *fill, |
3479 | bfd_vma dot) | |
3480 | { | |
3481 | /* Callers of exp_fold_tree need to increment this. */ | |
3482 | lang_statement_iteration++; | |
3483 | lang_do_assignments_1 (s, output_section_statement, fill, dot); | |
3484 | } | |
3485 | ||
252b5132 RH |
3486 | /* Fix any .startof. or .sizeof. symbols. When the assemblers see the |
3487 | operator .startof. (section_name), it produces an undefined symbol | |
3488 | .startof.section_name. Similarly, when it sees | |
3489 | .sizeof. (section_name), it produces an undefined symbol | |
3490 | .sizeof.section_name. For all the output sections, we look for | |
3491 | such symbols, and set them to the correct value. */ | |
3492 | ||
3493 | static void | |
1579bae1 | 3494 | lang_set_startof (void) |
252b5132 RH |
3495 | { |
3496 | asection *s; | |
3497 | ||
1049f94e | 3498 | if (link_info.relocatable) |
252b5132 RH |
3499 | return; |
3500 | ||
3501 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
3502 | { | |
3503 | const char *secname; | |
3504 | char *buf; | |
3505 | struct bfd_link_hash_entry *h; | |
3506 | ||
3507 | secname = bfd_get_section_name (output_bfd, s); | |
3508 | buf = xmalloc (10 + strlen (secname)); | |
3509 | ||
3510 | sprintf (buf, ".startof.%s", secname); | |
b34976b6 | 3511 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
3512 | if (h != NULL && h->type == bfd_link_hash_undefined) |
3513 | { | |
3514 | h->type = bfd_link_hash_defined; | |
3515 | h->u.def.value = bfd_get_section_vma (output_bfd, s); | |
3516 | h->u.def.section = bfd_abs_section_ptr; | |
3517 | } | |
3518 | ||
3519 | sprintf (buf, ".sizeof.%s", secname); | |
b34976b6 | 3520 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
3521 | if (h != NULL && h->type == bfd_link_hash_undefined) |
3522 | { | |
3523 | h->type = bfd_link_hash_defined; | |
3524 | if (s->_cooked_size != 0) | |
e5caa5e0 | 3525 | h->u.def.value = TO_ADDR (s->_cooked_size); |
252b5132 | 3526 | else |
e5caa5e0 | 3527 | h->u.def.value = TO_ADDR (s->_raw_size); |
252b5132 RH |
3528 | h->u.def.section = bfd_abs_section_ptr; |
3529 | } | |
3530 | ||
3531 | free (buf); | |
3532 | } | |
3533 | } | |
3534 | ||
3535 | static void | |
1579bae1 | 3536 | lang_finish (void) |
252b5132 RH |
3537 | { |
3538 | struct bfd_link_hash_entry *h; | |
b34976b6 | 3539 | bfd_boolean warn; |
252b5132 | 3540 | |
1049f94e | 3541 | if (link_info.relocatable || link_info.shared) |
b34976b6 | 3542 | warn = FALSE; |
252b5132 | 3543 | else |
b34976b6 | 3544 | warn = TRUE; |
252b5132 | 3545 | |
1579bae1 | 3546 | if (entry_symbol.name == NULL) |
252b5132 RH |
3547 | { |
3548 | /* No entry has been specified. Look for start, but don't warn | |
3549 | if we don't find it. */ | |
e3e942e9 | 3550 | entry_symbol.name = "start"; |
b34976b6 | 3551 | warn = FALSE; |
252b5132 RH |
3552 | } |
3553 | ||
e3e942e9 | 3554 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name, |
b34976b6 | 3555 | FALSE, FALSE, TRUE); |
1579bae1 | 3556 | if (h != NULL |
252b5132 RH |
3557 | && (h->type == bfd_link_hash_defined |
3558 | || h->type == bfd_link_hash_defweak) | |
3559 | && h->u.def.section->output_section != NULL) | |
3560 | { | |
3561 | bfd_vma val; | |
3562 | ||
3563 | val = (h->u.def.value | |
3564 | + bfd_get_section_vma (output_bfd, | |
3565 | h->u.def.section->output_section) | |
3566 | + h->u.def.section->output_offset); | |
3567 | if (! bfd_set_start_address (output_bfd, val)) | |
e3e942e9 | 3568 | einfo (_("%P%F:%s: can't set start address\n"), entry_symbol.name); |
252b5132 RH |
3569 | } |
3570 | else | |
3571 | { | |
3572 | bfd_vma val; | |
5f992e62 | 3573 | const char *send; |
252b5132 RH |
3574 | |
3575 | /* We couldn't find the entry symbol. Try parsing it as a | |
3576 | number. */ | |
e3e942e9 | 3577 | val = bfd_scan_vma (entry_symbol.name, &send, 0); |
252b5132 RH |
3578 | if (*send == '\0') |
3579 | { | |
3580 | if (! bfd_set_start_address (output_bfd, val)) | |
3581 | einfo (_("%P%F: can't set start address\n")); | |
3582 | } | |
3583 | else | |
3584 | { | |
3585 | asection *ts; | |
3586 | ||
3587 | /* Can't find the entry symbol, and it's not a number. Use | |
3588 | the first address in the text section. */ | |
1e281515 | 3589 | ts = bfd_get_section_by_name (output_bfd, entry_section); |
1579bae1 | 3590 | if (ts != NULL) |
252b5132 RH |
3591 | { |
3592 | if (warn) | |
3593 | einfo (_("%P: warning: cannot find entry symbol %s; defaulting to %V\n"), | |
e3e942e9 AM |
3594 | entry_symbol.name, |
3595 | bfd_get_section_vma (output_bfd, ts)); | |
252b5132 RH |
3596 | if (! bfd_set_start_address (output_bfd, |
3597 | bfd_get_section_vma (output_bfd, | |
3598 | ts))) | |
3599 | einfo (_("%P%F: can't set start address\n")); | |
3600 | } | |
3601 | else | |
3602 | { | |
3603 | if (warn) | |
3604 | einfo (_("%P: warning: cannot find entry symbol %s; not setting start address\n"), | |
e3e942e9 | 3605 | entry_symbol.name); |
252b5132 RH |
3606 | } |
3607 | } | |
3608 | } | |
420e579c HPN |
3609 | |
3610 | bfd_hash_table_free (&lang_definedness_table); | |
252b5132 RH |
3611 | } |
3612 | ||
3613 | /* This is a small function used when we want to ignore errors from | |
3614 | BFD. */ | |
3615 | ||
3616 | static void | |
87f2a346 | 3617 | ignore_bfd_errors (const char *s ATTRIBUTE_UNUSED, ...) |
252b5132 RH |
3618 | { |
3619 | /* Don't do anything. */ | |
3620 | } | |
3621 | ||
3622 | /* Check that the architecture of all the input files is compatible | |
3623 | with the output file. Also call the backend to let it do any | |
3624 | other checking that is needed. */ | |
3625 | ||
3626 | static void | |
1579bae1 | 3627 | lang_check (void) |
252b5132 RH |
3628 | { |
3629 | lang_statement_union_type *file; | |
3630 | bfd *input_bfd; | |
5f992e62 | 3631 | const bfd_arch_info_type *compatible; |
252b5132 | 3632 | |
1579bae1 | 3633 | for (file = file_chain.head; file != NULL; file = file->input_statement.next) |
252b5132 RH |
3634 | { |
3635 | input_bfd = file->input_statement.the_bfd; | |
312b768e NC |
3636 | compatible = bfd_arch_get_compatible (input_bfd, output_bfd, |
3637 | command_line.accept_unknown_input_arch); | |
30cba025 AM |
3638 | |
3639 | /* In general it is not possible to perform a relocatable | |
3640 | link between differing object formats when the input | |
3641 | file has relocations, because the relocations in the | |
3642 | input format may not have equivalent representations in | |
3643 | the output format (and besides BFD does not translate | |
3644 | relocs for other link purposes than a final link). */ | |
1049f94e | 3645 | if ((link_info.relocatable || link_info.emitrelocations) |
30cba025 | 3646 | && (compatible == NULL |
d35a52e2 | 3647 | || bfd_get_flavour (input_bfd) != bfd_get_flavour (output_bfd)) |
30cba025 AM |
3648 | && (bfd_get_file_flags (input_bfd) & HAS_RELOC) != 0) |
3649 | { | |
3650 | einfo (_("%P%F: Relocatable linking with relocations from format %s (%B) to format %s (%B) is not supported\n"), | |
3651 | bfd_get_target (input_bfd), input_bfd, | |
3652 | bfd_get_target (output_bfd), output_bfd); | |
3653 | /* einfo with %F exits. */ | |
3654 | } | |
3655 | ||
252b5132 RH |
3656 | if (compatible == NULL) |
3657 | { | |
3658 | if (command_line.warn_mismatch) | |
3659 | einfo (_("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n"), | |
3660 | bfd_printable_name (input_bfd), input_bfd, | |
3661 | bfd_printable_name (output_bfd)); | |
3662 | } | |
b9247304 | 3663 | else if (bfd_count_sections (input_bfd)) |
252b5132 | 3664 | { |
b9247304 | 3665 | /* If the input bfd has no contents, it shouldn't set the |
b7a26f91 | 3666 | private data of the output bfd. */ |
b9247304 | 3667 | |
252b5132 RH |
3668 | bfd_error_handler_type pfn = NULL; |
3669 | ||
3670 | /* If we aren't supposed to warn about mismatched input | |
3671 | files, temporarily set the BFD error handler to a | |
3672 | function which will do nothing. We still want to call | |
3673 | bfd_merge_private_bfd_data, since it may set up | |
3674 | information which is needed in the output file. */ | |
3675 | if (! command_line.warn_mismatch) | |
3676 | pfn = bfd_set_error_handler (ignore_bfd_errors); | |
3677 | if (! bfd_merge_private_bfd_data (input_bfd, output_bfd)) | |
3678 | { | |
3679 | if (command_line.warn_mismatch) | |
3680 | einfo (_("%E%X: failed to merge target specific data of file %B\n"), | |
3681 | input_bfd); | |
3682 | } | |
3683 | if (! command_line.warn_mismatch) | |
3684 | bfd_set_error_handler (pfn); | |
3685 | } | |
3686 | } | |
3687 | } | |
3688 | ||
3689 | /* Look through all the global common symbols and attach them to the | |
3690 | correct section. The -sort-common command line switch may be used | |
3691 | to roughly sort the entries by size. */ | |
3692 | ||
3693 | static void | |
1579bae1 | 3694 | lang_common (void) |
252b5132 | 3695 | { |
4818e05f AM |
3696 | if (command_line.inhibit_common_definition) |
3697 | return; | |
1049f94e | 3698 | if (link_info.relocatable |
252b5132 RH |
3699 | && ! command_line.force_common_definition) |
3700 | return; | |
3701 | ||
3702 | if (! config.sort_common) | |
1579bae1 | 3703 | bfd_link_hash_traverse (link_info.hash, lang_one_common, NULL); |
252b5132 RH |
3704 | else |
3705 | { | |
3706 | int power; | |
3707 | ||
3708 | for (power = 4; power >= 0; power--) | |
1579bae1 | 3709 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); |
252b5132 RH |
3710 | } |
3711 | } | |
3712 | ||
3713 | /* Place one common symbol in the correct section. */ | |
3714 | ||
b34976b6 | 3715 | static bfd_boolean |
1579bae1 | 3716 | lang_one_common (struct bfd_link_hash_entry *h, void *info) |
252b5132 RH |
3717 | { |
3718 | unsigned int power_of_two; | |
3719 | bfd_vma size; | |
3720 | asection *section; | |
3721 | ||
3722 | if (h->type != bfd_link_hash_common) | |
b34976b6 | 3723 | return TRUE; |
252b5132 RH |
3724 | |
3725 | size = h->u.c.size; | |
3726 | power_of_two = h->u.c.p->alignment_power; | |
3727 | ||
3728 | if (config.sort_common | |
3729 | && power_of_two < (unsigned int) *(int *) info) | |
b34976b6 | 3730 | return TRUE; |
252b5132 RH |
3731 | |
3732 | section = h->u.c.p->section; | |
3733 | ||
e5caa5e0 AM |
3734 | /* Increase the size of the section to align the common sym. */ |
3735 | section->_cooked_size += ((bfd_vma) 1 << (power_of_two + opb_shift)) - 1; | |
3736 | section->_cooked_size &= (- (bfd_vma) 1 << (power_of_two + opb_shift)); | |
252b5132 RH |
3737 | |
3738 | /* Adjust the alignment if necessary. */ | |
3739 | if (power_of_two > section->alignment_power) | |
3740 | section->alignment_power = power_of_two; | |
3741 | ||
3742 | /* Change the symbol from common to defined. */ | |
3743 | h->type = bfd_link_hash_defined; | |
3744 | h->u.def.section = section; | |
3745 | h->u.def.value = section->_cooked_size; | |
3746 | ||
3747 | /* Increase the size of the section. */ | |
3748 | section->_cooked_size += size; | |
3749 | ||
3750 | /* Make sure the section is allocated in memory, and make sure that | |
3751 | it is no longer a common section. */ | |
3752 | section->flags |= SEC_ALLOC; | |
08da4cac | 3753 | section->flags &= ~SEC_IS_COMMON; |
252b5132 RH |
3754 | |
3755 | if (config.map_file != NULL) | |
3756 | { | |
b34976b6 | 3757 | static bfd_boolean header_printed; |
252b5132 RH |
3758 | int len; |
3759 | char *name; | |
3760 | char buf[50]; | |
3761 | ||
3762 | if (! header_printed) | |
3763 | { | |
3764 | minfo (_("\nAllocating common symbols\n")); | |
3765 | minfo (_("Common symbol size file\n\n")); | |
b34976b6 | 3766 | header_printed = TRUE; |
252b5132 RH |
3767 | } |
3768 | ||
3769 | name = demangle (h->root.string); | |
3770 | minfo ("%s", name); | |
3771 | len = strlen (name); | |
3772 | free (name); | |
3773 | ||
3774 | if (len >= 19) | |
3775 | { | |
3776 | print_nl (); | |
3777 | len = 0; | |
3778 | } | |
3779 | while (len < 20) | |
3780 | { | |
3781 | print_space (); | |
3782 | ++len; | |
3783 | } | |
3784 | ||
3785 | minfo ("0x"); | |
3786 | if (size <= 0xffffffff) | |
3787 | sprintf (buf, "%lx", (unsigned long) size); | |
3788 | else | |
3789 | sprintf_vma (buf, size); | |
3790 | minfo ("%s", buf); | |
3791 | len = strlen (buf); | |
3792 | ||
3793 | while (len < 16) | |
3794 | { | |
3795 | print_space (); | |
3796 | ++len; | |
3797 | } | |
3798 | ||
3799 | minfo ("%B\n", section->owner); | |
3800 | } | |
3801 | ||
b34976b6 | 3802 | return TRUE; |
252b5132 RH |
3803 | } |
3804 | ||
08da4cac KH |
3805 | /* Run through the input files and ensure that every input section has |
3806 | somewhere to go. If one is found without a destination then create | |
3807 | an input request and place it into the statement tree. */ | |
252b5132 RH |
3808 | |
3809 | static void | |
1579bae1 | 3810 | lang_place_orphans (void) |
252b5132 | 3811 | { |
e50d8076 | 3812 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
252b5132 RH |
3813 | { |
3814 | asection *s; | |
3815 | ||
1579bae1 | 3816 | for (s = file->the_bfd->sections; s != NULL; s = s->next) |
252b5132 | 3817 | { |
1579bae1 | 3818 | if (s->output_section == NULL) |
252b5132 | 3819 | { |
396a2467 | 3820 | /* This section of the file is not attached, root |
08da4cac | 3821 | around for a sensible place for it to go. */ |
252b5132 RH |
3822 | |
3823 | if (file->just_syms_flag) | |
3824 | { | |
c2c01aa7 | 3825 | abort (); |
252b5132 RH |
3826 | } |
3827 | else if (strcmp (s->name, "COMMON") == 0) | |
3828 | { | |
3829 | /* This is a lonely common section which must have | |
3830 | come from an archive. We attach to the section | |
3831 | with the wildcard. */ | |
1049f94e | 3832 | if (! link_info.relocatable |
252b5132 RH |
3833 | || command_line.force_common_definition) |
3834 | { | |
3835 | if (default_common_section == NULL) | |
3836 | { | |
3837 | #if 0 | |
3838 | /* This message happens when using the | |
3839 | svr3.ifile linker script, so I have | |
3840 | disabled it. */ | |
3841 | info_msg (_("%P: no [COMMON] command, defaulting to .bss\n")); | |
3842 | #endif | |
3843 | default_common_section = | |
3844 | lang_output_section_statement_lookup (".bss"); | |
3845 | ||
3846 | } | |
39dcfe18 AM |
3847 | lang_add_section (&default_common_section->children, s, |
3848 | default_common_section, file); | |
252b5132 RH |
3849 | } |
3850 | } | |
3851 | else if (ldemul_place_orphan (file, s)) | |
3852 | ; | |
3853 | else | |
3854 | { | |
39dcfe18 | 3855 | lang_output_section_statement_type *os; |
252b5132 | 3856 | |
39dcfe18 AM |
3857 | os = lang_output_section_statement_lookup (s->name); |
3858 | lang_add_section (&os->children, s, os, file); | |
252b5132 RH |
3859 | } |
3860 | } | |
3861 | } | |
3862 | } | |
3863 | } | |
3864 | ||
252b5132 | 3865 | void |
1579bae1 | 3866 | lang_set_flags (lang_memory_region_type *ptr, const char *flags, int invert) |
252b5132 | 3867 | { |
aa8804e4 | 3868 | flagword *ptr_flags; |
252b5132 | 3869 | |
aa8804e4 | 3870 | ptr_flags = invert ? &ptr->not_flags : &ptr->flags; |
252b5132 RH |
3871 | while (*flags) |
3872 | { | |
3873 | switch (*flags) | |
3874 | { | |
252b5132 RH |
3875 | case 'A': case 'a': |
3876 | *ptr_flags |= SEC_ALLOC; | |
3877 | break; | |
3878 | ||
3879 | case 'R': case 'r': | |
3880 | *ptr_flags |= SEC_READONLY; | |
3881 | break; | |
3882 | ||
3883 | case 'W': case 'w': | |
3884 | *ptr_flags |= SEC_DATA; | |
3885 | break; | |
3886 | ||
3887 | case 'X': case 'x': | |
3888 | *ptr_flags |= SEC_CODE; | |
3889 | break; | |
3890 | ||
3891 | case 'L': case 'l': | |
3892 | case 'I': case 'i': | |
3893 | *ptr_flags |= SEC_LOAD; | |
3894 | break; | |
3895 | ||
3896 | default: | |
3897 | einfo (_("%P%F: invalid syntax in flags\n")); | |
3898 | break; | |
3899 | } | |
3900 | flags++; | |
3901 | } | |
3902 | } | |
3903 | ||
3904 | /* Call a function on each input file. This function will be called | |
3905 | on an archive, but not on the elements. */ | |
3906 | ||
3907 | void | |
1579bae1 | 3908 | lang_for_each_input_file (void (*func) (lang_input_statement_type *)) |
252b5132 RH |
3909 | { |
3910 | lang_input_statement_type *f; | |
3911 | ||
3912 | for (f = (lang_input_statement_type *) input_file_chain.head; | |
3913 | f != NULL; | |
3914 | f = (lang_input_statement_type *) f->next_real_file) | |
3915 | func (f); | |
3916 | } | |
3917 | ||
3918 | /* Call a function on each file. The function will be called on all | |
3919 | the elements of an archive which are included in the link, but will | |
3920 | not be called on the archive file itself. */ | |
3921 | ||
3922 | void | |
1579bae1 | 3923 | lang_for_each_file (void (*func) (lang_input_statement_type *)) |
252b5132 | 3924 | { |
e50d8076 | 3925 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 RH |
3926 | { |
3927 | func (f); | |
3928 | } | |
3929 | } | |
3930 | ||
3931 | #if 0 | |
3932 | ||
3933 | /* Not used. */ | |
3934 | ||
3935 | void | |
1579bae1 | 3936 | lang_for_each_input_section (void (*func) (bfd *ab, asection *as)) |
252b5132 | 3937 | { |
e50d8076 | 3938 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 | 3939 | { |
08da4cac | 3940 | asection *s; |
252b5132 | 3941 | |
1579bae1 AM |
3942 | for (s = f->the_bfd->sections; s != NULL; s = s->next) |
3943 | func (f->the_bfd, s); | |
252b5132 RH |
3944 | } |
3945 | } | |
3946 | ||
3947 | #endif | |
3948 | ||
3949 | void | |
1579bae1 | 3950 | ldlang_add_file (lang_input_statement_type *entry) |
252b5132 RH |
3951 | { |
3952 | bfd **pp; | |
3953 | ||
3954 | lang_statement_append (&file_chain, | |
3955 | (lang_statement_union_type *) entry, | |
3956 | &entry->next); | |
3957 | ||
3958 | /* The BFD linker needs to have a list of all input BFDs involved in | |
3959 | a link. */ | |
1579bae1 | 3960 | ASSERT (entry->the_bfd->link_next == NULL); |
252b5132 | 3961 | ASSERT (entry->the_bfd != output_bfd); |
1579bae1 | 3962 | for (pp = &link_info.input_bfds; *pp != NULL; pp = &(*pp)->link_next) |
252b5132 RH |
3963 | ; |
3964 | *pp = entry->the_bfd; | |
1579bae1 | 3965 | entry->the_bfd->usrdata = entry; |
252b5132 RH |
3966 | bfd_set_gp_size (entry->the_bfd, g_switch_value); |
3967 | ||
3968 | /* Look through the sections and check for any which should not be | |
3969 | included in the link. We need to do this now, so that we can | |
3970 | notice when the backend linker tries to report multiple | |
3971 | definition errors for symbols which are in sections we aren't | |
3972 | going to link. FIXME: It might be better to entirely ignore | |
3973 | symbols which are defined in sections which are going to be | |
3974 | discarded. This would require modifying the backend linker for | |
3975 | each backend which might set the SEC_LINK_ONCE flag. If we do | |
3976 | this, we should probably handle SEC_EXCLUDE in the same way. */ | |
3977 | ||
1579bae1 | 3978 | bfd_map_over_sections (entry->the_bfd, section_already_linked, entry); |
252b5132 RH |
3979 | } |
3980 | ||
3981 | void | |
1579bae1 | 3982 | lang_add_output (const char *name, int from_script) |
252b5132 RH |
3983 | { |
3984 | /* Make -o on command line override OUTPUT in script. */ | |
7c519c12 | 3985 | if (!had_output_filename || !from_script) |
252b5132 RH |
3986 | { |
3987 | output_filename = name; | |
b34976b6 | 3988 | had_output_filename = TRUE; |
252b5132 RH |
3989 | } |
3990 | } | |
3991 | ||
252b5132 RH |
3992 | static lang_output_section_statement_type *current_section; |
3993 | ||
3994 | static int | |
1579bae1 | 3995 | topower (int x) |
252b5132 RH |
3996 | { |
3997 | unsigned int i = 1; | |
3998 | int l; | |
3999 | ||
4000 | if (x < 0) | |
4001 | return -1; | |
4002 | ||
5f992e62 | 4003 | for (l = 0; l < 32; l++) |
252b5132 RH |
4004 | { |
4005 | if (i >= (unsigned int) x) | |
4006 | return l; | |
4007 | i <<= 1; | |
4008 | } | |
4009 | ||
4010 | return 0; | |
4011 | } | |
4012 | ||
aea4bd9d | 4013 | lang_output_section_statement_type * |
1579bae1 AM |
4014 | lang_enter_output_section_statement (const char *output_section_statement_name, |
4015 | etree_type *address_exp, | |
4016 | enum section_type sectype, | |
1579bae1 AM |
4017 | etree_type *align, |
4018 | etree_type *subalign, | |
4019 | etree_type *ebase) | |
252b5132 RH |
4020 | { |
4021 | lang_output_section_statement_type *os; | |
4022 | ||
4023 | current_section = | |
4024 | os = | |
4025 | lang_output_section_statement_lookup (output_section_statement_name); | |
4026 | ||
08da4cac KH |
4027 | /* Add this statement to tree. */ |
4028 | #if 0 | |
4029 | add_statement (lang_output_section_statement_enum, | |
4030 | output_section_statement); | |
4031 | #endif | |
4032 | /* Make next things chain into subchain of this. */ | |
252b5132 | 4033 | |
1579bae1 | 4034 | if (os->addr_tree == NULL) |
08da4cac KH |
4035 | { |
4036 | os->addr_tree = address_exp; | |
4037 | } | |
252b5132 RH |
4038 | os->sectype = sectype; |
4039 | if (sectype != noload_section) | |
4040 | os->flags = SEC_NO_FLAGS; | |
4041 | else | |
4042 | os->flags = SEC_NEVER_LOAD; | |
e5caa5e0 | 4043 | os->block_value = 1; |
252b5132 RH |
4044 | stat_ptr = &os->children; |
4045 | ||
08da4cac KH |
4046 | os->subsection_alignment = |
4047 | topower (exp_get_value_int (subalign, -1, "subsection alignment", 0)); | |
4048 | os->section_alignment = | |
4049 | topower (exp_get_value_int (align, -1, "section alignment", 0)); | |
252b5132 RH |
4050 | |
4051 | os->load_base = ebase; | |
aea4bd9d | 4052 | return os; |
252b5132 RH |
4053 | } |
4054 | ||
252b5132 | 4055 | void |
1579bae1 | 4056 | lang_final (void) |
252b5132 RH |
4057 | { |
4058 | lang_output_statement_type *new = | |
4059 | new_stat (lang_output_statement, stat_ptr); | |
4060 | ||
4061 | new->name = output_filename; | |
4062 | } | |
4063 | ||
08da4cac KH |
4064 | /* Reset the current counters in the regions. */ |
4065 | ||
e3dc8847 | 4066 | void |
1579bae1 | 4067 | lang_reset_memory_regions (void) |
252b5132 RH |
4068 | { |
4069 | lang_memory_region_type *p = lang_memory_region_list; | |
b3327aad | 4070 | asection *o; |
252b5132 | 4071 | |
1579bae1 | 4072 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
252b5132 RH |
4073 | { |
4074 | p->old_length = (bfd_size_type) (p->current - p->origin); | |
4075 | p->current = p->origin; | |
4076 | } | |
b3327aad AM |
4077 | |
4078 | for (o = output_bfd->sections; o != NULL; o = o->next) | |
4079 | o->_raw_size = 0; | |
252b5132 RH |
4080 | } |
4081 | ||
b6bf44ba AM |
4082 | /* If the wild pattern was marked KEEP, the member sections |
4083 | should be as well. */ | |
252b5132 RH |
4084 | |
4085 | static void | |
1579bae1 AM |
4086 | gc_section_callback (lang_wild_statement_type *ptr, |
4087 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
4088 | asection *section, | |
4089 | lang_input_statement_type *file ATTRIBUTE_UNUSED, | |
4090 | void *data ATTRIBUTE_UNUSED) | |
252b5132 | 4091 | { |
4dec4d4e RH |
4092 | if (ptr->keep_sections) |
4093 | section->flags |= SEC_KEEP; | |
252b5132 RH |
4094 | } |
4095 | ||
b6bf44ba | 4096 | /* Handle a wild statement, marking it against GC. */ |
252b5132 RH |
4097 | |
4098 | static void | |
1579bae1 | 4099 | lang_gc_wild (lang_wild_statement_type *s) |
252b5132 | 4100 | { |
b6bf44ba | 4101 | walk_wild (s, gc_section_callback, NULL); |
252b5132 RH |
4102 | } |
4103 | ||
4104 | /* Iterate over sections marking them against GC. */ | |
4105 | ||
4106 | static void | |
1579bae1 | 4107 | lang_gc_sections_1 (lang_statement_union_type *s) |
252b5132 | 4108 | { |
1579bae1 | 4109 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
4110 | { |
4111 | switch (s->header.type) | |
4112 | { | |
4113 | case lang_wild_statement_enum: | |
b6bf44ba | 4114 | lang_gc_wild (&s->wild_statement); |
abc6ab0a | 4115 | break; |
252b5132 RH |
4116 | case lang_constructors_statement_enum: |
4117 | lang_gc_sections_1 (constructor_list.head); | |
4118 | break; | |
4119 | case lang_output_section_statement_enum: | |
4120 | lang_gc_sections_1 (s->output_section_statement.children.head); | |
4121 | break; | |
4122 | case lang_group_statement_enum: | |
4123 | lang_gc_sections_1 (s->group_statement.children.head); | |
4124 | break; | |
4125 | default: | |
4126 | break; | |
4127 | } | |
4128 | } | |
4129 | } | |
4130 | ||
4131 | static void | |
1579bae1 | 4132 | lang_gc_sections (void) |
252b5132 RH |
4133 | { |
4134 | struct bfd_link_hash_entry *h; | |
e3e942e9 | 4135 | ldlang_undef_chain_list_type *ulist; |
252b5132 RH |
4136 | |
4137 | /* Keep all sections so marked in the link script. */ | |
4138 | ||
4139 | lang_gc_sections_1 (statement_list.head); | |
4140 | ||
e3e942e9 AM |
4141 | /* Keep all sections containing symbols undefined on the command-line, |
4142 | and the section containing the entry symbol. */ | |
252b5132 | 4143 | |
e3e942e9 | 4144 | for (ulist = link_info.gc_sym_list; ulist; ulist = ulist->next) |
252b5132 | 4145 | { |
5f992e62 | 4146 | h = bfd_link_hash_lookup (link_info.hash, ulist->name, |
b34976b6 | 4147 | FALSE, FALSE, FALSE); |
252b5132 | 4148 | |
1579bae1 | 4149 | if (h != NULL |
08da4cac KH |
4150 | && (h->type == bfd_link_hash_defined |
4151 | || h->type == bfd_link_hash_defweak) | |
252b5132 RH |
4152 | && ! bfd_is_abs_section (h->u.def.section)) |
4153 | { | |
4154 | h->u.def.section->flags |= SEC_KEEP; | |
4155 | } | |
4156 | } | |
4157 | ||
4158 | bfd_gc_sections (output_bfd, &link_info); | |
4159 | } | |
4160 | ||
4161 | void | |
1579bae1 | 4162 | lang_process (void) |
252b5132 RH |
4163 | { |
4164 | lang_reasonable_defaults (); | |
4165 | current_target = default_target; | |
4166 | ||
08da4cac KH |
4167 | /* Open the output file. */ |
4168 | lang_for_each_statement (ldlang_open_output); | |
e5caa5e0 | 4169 | init_opb (); |
252b5132 RH |
4170 | |
4171 | ldemul_create_output_section_statements (); | |
4172 | ||
08da4cac | 4173 | /* Add to the hash table all undefineds on the command line. */ |
252b5132 RH |
4174 | lang_place_undefineds (); |
4175 | ||
9503fd87 ILT |
4176 | already_linked_table_init (); |
4177 | ||
08da4cac | 4178 | /* Create a bfd for each input file. */ |
252b5132 | 4179 | current_target = default_target; |
b34976b6 | 4180 | open_input_bfds (statement_list.head, FALSE); |
252b5132 | 4181 | |
e3e942e9 AM |
4182 | link_info.gc_sym_list = &entry_symbol; |
4183 | if (entry_symbol.name == NULL) | |
4184 | link_info.gc_sym_list = ldlang_undef_chain_list_head; | |
4185 | ||
252b5132 RH |
4186 | ldemul_after_open (); |
4187 | ||
9503fd87 ILT |
4188 | already_linked_table_free (); |
4189 | ||
252b5132 RH |
4190 | /* Make sure that we're not mixing architectures. We call this |
4191 | after all the input files have been opened, but before we do any | |
4192 | other processing, so that any operations merge_private_bfd_data | |
4193 | does on the output file will be known during the rest of the | |
4194 | link. */ | |
4195 | lang_check (); | |
4196 | ||
4197 | /* Handle .exports instead of a version script if we're told to do so. */ | |
4198 | if (command_line.version_exports_section) | |
4199 | lang_do_version_exports_section (); | |
4200 | ||
4201 | /* Build all sets based on the information gathered from the input | |
4202 | files. */ | |
4203 | ldctor_build_sets (); | |
4204 | ||
4205 | /* Remove unreferenced sections if asked to. */ | |
4206 | if (command_line.gc_sections) | |
4207 | lang_gc_sections (); | |
4208 | ||
8550eb6e JJ |
4209 | /* If there were any SEC_MERGE sections, finish their merging, so that |
4210 | section sizes can be computed. This has to be done after GC of sections, | |
4211 | so that GCed sections are not merged, but before assigning output | |
4212 | sections, since removing whole input sections is hard then. */ | |
4213 | bfd_merge_sections (output_bfd, &link_info); | |
4214 | ||
08da4cac | 4215 | /* Size up the common data. */ |
252b5132 RH |
4216 | lang_common (); |
4217 | ||
4218 | /* Run through the contours of the script and attach input sections | |
08da4cac | 4219 | to the correct output sections. */ |
1579bae1 | 4220 | map_input_to_output_sections (statement_list.head, NULL, NULL); |
252b5132 | 4221 | |
08da4cac | 4222 | /* Find any sections not attached explicitly and handle them. */ |
252b5132 RH |
4223 | lang_place_orphans (); |
4224 | ||
1049f94e | 4225 | if (! link_info.relocatable) |
862120bd AM |
4226 | { |
4227 | /* Look for a text section and set the readonly attribute in it. */ | |
4228 | asection *found = bfd_get_section_by_name (output_bfd, ".text"); | |
4229 | ||
1579bae1 | 4230 | if (found != NULL) |
862120bd AM |
4231 | { |
4232 | if (config.text_read_only) | |
4233 | found->flags |= SEC_READONLY; | |
4234 | else | |
4235 | found->flags &= ~SEC_READONLY; | |
4236 | } | |
4237 | } | |
4238 | ||
4239 | /* Do anything special before sizing sections. This is where ELF | |
4240 | and other back-ends size dynamic sections. */ | |
252b5132 RH |
4241 | ldemul_before_allocation (); |
4242 | ||
1049f94e | 4243 | if (!link_info.relocatable) |
4bd5a393 AM |
4244 | strip_excluded_output_sections (); |
4245 | ||
252b5132 RH |
4246 | /* We must record the program headers before we try to fix the |
4247 | section positions, since they will affect SIZEOF_HEADERS. */ | |
4248 | lang_record_phdrs (); | |
4249 | ||
b3327aad | 4250 | /* Size up the sections. */ |
1579bae1 AM |
4251 | lang_size_sections (statement_list.head, abs_output_section, |
4252 | &statement_list.head, 0, 0, NULL, | |
cf888e70 | 4253 | command_line.relax ? FALSE : TRUE); |
b3327aad | 4254 | |
08da4cac | 4255 | /* Now run around and relax if we can. */ |
252b5132 RH |
4256 | if (command_line.relax) |
4257 | { | |
252b5132 | 4258 | /* Keep relaxing until bfd_relax_section gives up. */ |
b34976b6 | 4259 | bfd_boolean relax_again; |
b3327aad | 4260 | |
252b5132 RH |
4261 | do |
4262 | { | |
b34976b6 | 4263 | relax_again = FALSE; |
252b5132 RH |
4264 | |
4265 | /* Note: pe-dll.c does something like this also. If you find | |
4266 | you need to change this code, you probably need to change | |
08da4cac | 4267 | pe-dll.c also. DJ */ |
252b5132 RH |
4268 | |
4269 | /* Do all the assignments with our current guesses as to | |
4270 | section sizes. */ | |
1579bae1 AM |
4271 | lang_do_assignments (statement_list.head, abs_output_section, |
4272 | NULL, 0); | |
252b5132 | 4273 | |
5a46fe39 JW |
4274 | /* We must do this after lang_do_assignments, because it uses |
4275 | _raw_size. */ | |
4276 | lang_reset_memory_regions (); | |
4277 | ||
252b5132 | 4278 | /* Perform another relax pass - this time we know where the |
0d6d936f | 4279 | globals are, so can make a better guess. */ |
1579bae1 AM |
4280 | lang_size_sections (statement_list.head, abs_output_section, |
4281 | &statement_list.head, 0, 0, &relax_again, FALSE); | |
c7996ad6 L |
4282 | |
4283 | /* If the normal relax is done and the relax finalize pass | |
4284 | is not performed yet, we perform another relax pass. */ | |
d9c458fc | 4285 | if (!relax_again && link_info.need_relax_finalize) |
c7996ad6 | 4286 | { |
d9c458fc | 4287 | link_info.need_relax_finalize = FALSE; |
c7996ad6 L |
4288 | relax_again = TRUE; |
4289 | } | |
252b5132 RH |
4290 | } |
4291 | while (relax_again); | |
cf888e70 NC |
4292 | |
4293 | /* Final extra sizing to report errors. */ | |
1579bae1 | 4294 | lang_do_assignments (statement_list.head, abs_output_section, NULL, 0); |
5a46fe39 | 4295 | lang_reset_memory_regions (); |
1579bae1 AM |
4296 | lang_size_sections (statement_list.head, abs_output_section, |
4297 | &statement_list.head, 0, 0, NULL, TRUE); | |
252b5132 | 4298 | } |
252b5132 RH |
4299 | |
4300 | /* See if anything special should be done now we know how big | |
4301 | everything is. */ | |
4302 | ldemul_after_allocation (); | |
4303 | ||
4304 | /* Fix any .startof. or .sizeof. symbols. */ | |
4305 | lang_set_startof (); | |
4306 | ||
08da4cac KH |
4307 | /* Do all the assignments, now that we know the final resting places |
4308 | of all the symbols. */ | |
252b5132 | 4309 | |
1579bae1 | 4310 | lang_do_assignments (statement_list.head, abs_output_section, NULL, 0); |
252b5132 RH |
4311 | |
4312 | /* Make sure that the section addresses make sense. */ | |
1049f94e | 4313 | if (! link_info.relocatable |
252b5132 RH |
4314 | && command_line.check_section_addresses) |
4315 | lang_check_section_addresses (); | |
5f992e62 | 4316 | |
08da4cac | 4317 | /* Final stuffs. */ |
252b5132 RH |
4318 | |
4319 | ldemul_finish (); | |
4320 | lang_finish (); | |
4321 | } | |
4322 | ||
4323 | /* EXPORTED TO YACC */ | |
4324 | ||
4325 | void | |
1579bae1 AM |
4326 | lang_add_wild (struct wildcard_spec *filespec, |
4327 | struct wildcard_list *section_list, | |
4328 | bfd_boolean keep_sections) | |
252b5132 | 4329 | { |
b6bf44ba AM |
4330 | struct wildcard_list *curr, *next; |
4331 | lang_wild_statement_type *new; | |
4332 | ||
4333 | /* Reverse the list as the parser puts it back to front. */ | |
4334 | for (curr = section_list, section_list = NULL; | |
4335 | curr != NULL; | |
4336 | section_list = curr, curr = next) | |
4337 | { | |
4338 | if (curr->spec.name != NULL && strcmp (curr->spec.name, "COMMON") == 0) | |
b34976b6 | 4339 | placed_commons = TRUE; |
252b5132 | 4340 | |
b6bf44ba AM |
4341 | next = curr->next; |
4342 | curr->next = section_list; | |
4343 | } | |
4344 | ||
4345 | if (filespec != NULL && filespec->name != NULL) | |
252b5132 | 4346 | { |
b6bf44ba AM |
4347 | if (strcmp (filespec->name, "*") == 0) |
4348 | filespec->name = NULL; | |
4349 | else if (! wildcardp (filespec->name)) | |
b34976b6 | 4350 | lang_has_input_file = TRUE; |
252b5132 | 4351 | } |
b6bf44ba AM |
4352 | |
4353 | new = new_stat (lang_wild_statement, stat_ptr); | |
4354 | new->filename = NULL; | |
b34976b6 | 4355 | new->filenames_sorted = FALSE; |
b6bf44ba | 4356 | if (filespec != NULL) |
252b5132 | 4357 | { |
b6bf44ba AM |
4358 | new->filename = filespec->name; |
4359 | new->filenames_sorted = filespec->sorted; | |
252b5132 | 4360 | } |
b6bf44ba | 4361 | new->section_list = section_list; |
252b5132 | 4362 | new->keep_sections = keep_sections; |
252b5132 RH |
4363 | lang_list_init (&new->children); |
4364 | } | |
4365 | ||
4366 | void | |
1579bae1 | 4367 | lang_section_start (const char *name, etree_type *address) |
252b5132 | 4368 | { |
d1778b88 | 4369 | lang_address_statement_type *ad; |
252b5132 | 4370 | |
d1778b88 | 4371 | ad = new_stat (lang_address_statement, stat_ptr); |
252b5132 RH |
4372 | ad->section_name = name; |
4373 | ad->address = address; | |
4374 | } | |
4375 | ||
4376 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called | |
4377 | because of a -e argument on the command line, or zero if this is | |
4378 | called by ENTRY in a linker script. Command line arguments take | |
4379 | precedence. */ | |
4380 | ||
4381 | void | |
1579bae1 | 4382 | lang_add_entry (const char *name, bfd_boolean cmdline) |
252b5132 | 4383 | { |
e3e942e9 | 4384 | if (entry_symbol.name == NULL |
252b5132 RH |
4385 | || cmdline |
4386 | || ! entry_from_cmdline) | |
4387 | { | |
e3e942e9 | 4388 | entry_symbol.name = name; |
252b5132 RH |
4389 | entry_from_cmdline = cmdline; |
4390 | } | |
4391 | } | |
4392 | ||
4393 | void | |
1579bae1 | 4394 | lang_add_target (const char *name) |
252b5132 RH |
4395 | { |
4396 | lang_target_statement_type *new = new_stat (lang_target_statement, | |
4397 | stat_ptr); | |
4398 | ||
4399 | new->target = name; | |
4400 | ||
4401 | } | |
4402 | ||
4403 | void | |
1579bae1 | 4404 | lang_add_map (const char *name) |
252b5132 RH |
4405 | { |
4406 | while (*name) | |
4407 | { | |
4408 | switch (*name) | |
4409 | { | |
08da4cac | 4410 | case 'F': |
b34976b6 | 4411 | map_option_f = TRUE; |
252b5132 RH |
4412 | break; |
4413 | } | |
4414 | name++; | |
4415 | } | |
4416 | } | |
4417 | ||
4418 | void | |
1579bae1 | 4419 | lang_add_fill (fill_type *fill) |
252b5132 RH |
4420 | { |
4421 | lang_fill_statement_type *new = new_stat (lang_fill_statement, | |
4422 | stat_ptr); | |
4423 | ||
2c382fb6 | 4424 | new->fill = fill; |
252b5132 RH |
4425 | } |
4426 | ||
4427 | void | |
1579bae1 | 4428 | lang_add_data (int type, union etree_union *exp) |
252b5132 RH |
4429 | { |
4430 | ||
4431 | lang_data_statement_type *new = new_stat (lang_data_statement, | |
4432 | stat_ptr); | |
4433 | ||
4434 | new->exp = exp; | |
4435 | new->type = type; | |
4436 | ||
4437 | } | |
4438 | ||
4439 | /* Create a new reloc statement. RELOC is the BFD relocation type to | |
4440 | generate. HOWTO is the corresponding howto structure (we could | |
4441 | look this up, but the caller has already done so). SECTION is the | |
4442 | section to generate a reloc against, or NAME is the name of the | |
4443 | symbol to generate a reloc against. Exactly one of SECTION and | |
4444 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
4445 | ||
4446 | void | |
1579bae1 AM |
4447 | lang_add_reloc (bfd_reloc_code_real_type reloc, |
4448 | reloc_howto_type *howto, | |
4449 | asection *section, | |
4450 | const char *name, | |
4451 | union etree_union *addend) | |
252b5132 RH |
4452 | { |
4453 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
5f992e62 | 4454 | |
252b5132 RH |
4455 | p->reloc = reloc; |
4456 | p->howto = howto; | |
4457 | p->section = section; | |
4458 | p->name = name; | |
4459 | p->addend_exp = addend; | |
4460 | ||
4461 | p->addend_value = 0; | |
4462 | p->output_section = NULL; | |
4463 | p->output_vma = 0; | |
4464 | } | |
4465 | ||
4466 | lang_assignment_statement_type * | |
1579bae1 | 4467 | lang_add_assignment (etree_type *exp) |
252b5132 RH |
4468 | { |
4469 | lang_assignment_statement_type *new = new_stat (lang_assignment_statement, | |
4470 | stat_ptr); | |
4471 | ||
4472 | new->exp = exp; | |
4473 | return new; | |
4474 | } | |
4475 | ||
4476 | void | |
1579bae1 | 4477 | lang_add_attribute (enum statement_enum attribute) |
252b5132 RH |
4478 | { |
4479 | new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr); | |
4480 | } | |
4481 | ||
4482 | void | |
1579bae1 | 4483 | lang_startup (const char *name) |
252b5132 | 4484 | { |
1579bae1 | 4485 | if (startup_file != NULL) |
252b5132 RH |
4486 | { |
4487 | einfo (_("%P%Fmultiple STARTUP files\n")); | |
4488 | } | |
4489 | first_file->filename = name; | |
4490 | first_file->local_sym_name = name; | |
b34976b6 | 4491 | first_file->real = TRUE; |
252b5132 RH |
4492 | |
4493 | startup_file = name; | |
4494 | } | |
4495 | ||
4496 | void | |
1579bae1 | 4497 | lang_float (bfd_boolean maybe) |
252b5132 RH |
4498 | { |
4499 | lang_float_flag = maybe; | |
4500 | } | |
4501 | ||
ee3cc2e2 RS |
4502 | |
4503 | /* Work out the load- and run-time regions from a script statement, and | |
4504 | store them in *LMA_REGION and *REGION respectively. | |
4505 | ||
a747ee4d NC |
4506 | MEMSPEC is the name of the run-time region, or the value of |
4507 | DEFAULT_MEMORY_REGION if the statement didn't specify one. | |
4508 | LMA_MEMSPEC is the name of the load-time region, or null if the | |
4509 | statement didn't specify one.HAVE_LMA_P is TRUE if the statement | |
4510 | had an explicit load address. | |
ee3cc2e2 RS |
4511 | |
4512 | It is an error to specify both a load region and a load address. */ | |
4513 | ||
4514 | static void | |
6bdafbeb NC |
4515 | lang_get_regions (lang_memory_region_type **region, |
4516 | lang_memory_region_type **lma_region, | |
1579bae1 AM |
4517 | const char *memspec, |
4518 | const char *lma_memspec, | |
6bdafbeb NC |
4519 | bfd_boolean have_lma, |
4520 | bfd_boolean have_vma) | |
ee3cc2e2 | 4521 | { |
a747ee4d | 4522 | *lma_region = lang_memory_region_lookup (lma_memspec, FALSE); |
ee3cc2e2 | 4523 | |
6bdafbeb NC |
4524 | /* If no runtime region or VMA has been specified, but the load region has |
4525 | been specified, then use the load region for the runtime region as well. */ | |
4526 | if (lma_memspec != NULL | |
4527 | && ! have_vma | |
4528 | && strcmp (memspec, DEFAULT_MEMORY_REGION) == 0) | |
ee3cc2e2 RS |
4529 | *region = *lma_region; |
4530 | else | |
a747ee4d | 4531 | *region = lang_memory_region_lookup (memspec, FALSE); |
ee3cc2e2 | 4532 | |
6bdafbeb | 4533 | if (have_lma && lma_memspec != 0) |
ee3cc2e2 RS |
4534 | einfo (_("%X%P:%S: section has both a load address and a load region\n")); |
4535 | } | |
4536 | ||
252b5132 | 4537 | void |
6bdafbeb NC |
4538 | lang_leave_output_section_statement (fill_type *fill, const char *memspec, |
4539 | lang_output_section_phdr_list *phdrs, | |
4540 | const char *lma_memspec) | |
252b5132 | 4541 | { |
ee3cc2e2 RS |
4542 | lang_get_regions (¤t_section->region, |
4543 | ¤t_section->lma_region, | |
4544 | memspec, lma_memspec, | |
6bdafbeb NC |
4545 | current_section->load_base != NULL, |
4546 | current_section->addr_tree != NULL); | |
252b5132 | 4547 | current_section->fill = fill; |
252b5132 RH |
4548 | current_section->phdrs = phdrs; |
4549 | stat_ptr = &statement_list; | |
4550 | } | |
4551 | ||
08da4cac KH |
4552 | /* Create an absolute symbol with the given name with the value of the |
4553 | address of first byte of the section named. | |
4554 | ||
4555 | If the symbol already exists, then do nothing. */ | |
252b5132 | 4556 | |
252b5132 | 4557 | void |
1579bae1 | 4558 | lang_abs_symbol_at_beginning_of (const char *secname, const char *name) |
252b5132 RH |
4559 | { |
4560 | struct bfd_link_hash_entry *h; | |
4561 | ||
b34976b6 | 4562 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, TRUE, TRUE); |
1579bae1 | 4563 | if (h == NULL) |
252b5132 RH |
4564 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); |
4565 | ||
4566 | if (h->type == bfd_link_hash_new | |
4567 | || h->type == bfd_link_hash_undefined) | |
4568 | { | |
4569 | asection *sec; | |
4570 | ||
4571 | h->type = bfd_link_hash_defined; | |
4572 | ||
4573 | sec = bfd_get_section_by_name (output_bfd, secname); | |
1579bae1 | 4574 | if (sec == NULL) |
252b5132 RH |
4575 | h->u.def.value = 0; |
4576 | else | |
4577 | h->u.def.value = bfd_get_section_vma (output_bfd, sec); | |
4578 | ||
4579 | h->u.def.section = bfd_abs_section_ptr; | |
4580 | } | |
4581 | } | |
4582 | ||
08da4cac KH |
4583 | /* Create an absolute symbol with the given name with the value of the |
4584 | address of the first byte after the end of the section named. | |
4585 | ||
4586 | If the symbol already exists, then do nothing. */ | |
252b5132 | 4587 | |
252b5132 | 4588 | void |
1579bae1 | 4589 | lang_abs_symbol_at_end_of (const char *secname, const char *name) |
252b5132 RH |
4590 | { |
4591 | struct bfd_link_hash_entry *h; | |
4592 | ||
b34976b6 | 4593 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, TRUE, TRUE); |
1579bae1 | 4594 | if (h == NULL) |
252b5132 RH |
4595 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); |
4596 | ||
4597 | if (h->type == bfd_link_hash_new | |
4598 | || h->type == bfd_link_hash_undefined) | |
4599 | { | |
4600 | asection *sec; | |
4601 | ||
4602 | h->type = bfd_link_hash_defined; | |
4603 | ||
4604 | sec = bfd_get_section_by_name (output_bfd, secname); | |
1579bae1 | 4605 | if (sec == NULL) |
252b5132 RH |
4606 | h->u.def.value = 0; |
4607 | else | |
4608 | h->u.def.value = (bfd_get_section_vma (output_bfd, sec) | |
e5caa5e0 | 4609 | + TO_ADDR (bfd_section_size (output_bfd, sec))); |
252b5132 RH |
4610 | |
4611 | h->u.def.section = bfd_abs_section_ptr; | |
4612 | } | |
4613 | } | |
4614 | ||
4615 | void | |
1579bae1 AM |
4616 | lang_statement_append (lang_statement_list_type *list, |
4617 | lang_statement_union_type *element, | |
4618 | lang_statement_union_type **field) | |
252b5132 RH |
4619 | { |
4620 | *(list->tail) = element; | |
4621 | list->tail = field; | |
4622 | } | |
4623 | ||
4624 | /* Set the output format type. -oformat overrides scripts. */ | |
4625 | ||
4626 | void | |
1579bae1 AM |
4627 | lang_add_output_format (const char *format, |
4628 | const char *big, | |
4629 | const char *little, | |
4630 | int from_script) | |
252b5132 RH |
4631 | { |
4632 | if (output_target == NULL || !from_script) | |
4633 | { | |
4634 | if (command_line.endian == ENDIAN_BIG | |
4635 | && big != NULL) | |
4636 | format = big; | |
4637 | else if (command_line.endian == ENDIAN_LITTLE | |
4638 | && little != NULL) | |
4639 | format = little; | |
4640 | ||
4641 | output_target = format; | |
4642 | } | |
4643 | } | |
4644 | ||
4645 | /* Enter a group. This creates a new lang_group_statement, and sets | |
4646 | stat_ptr to build new statements within the group. */ | |
4647 | ||
4648 | void | |
1579bae1 | 4649 | lang_enter_group (void) |
252b5132 RH |
4650 | { |
4651 | lang_group_statement_type *g; | |
4652 | ||
4653 | g = new_stat (lang_group_statement, stat_ptr); | |
4654 | lang_list_init (&g->children); | |
4655 | stat_ptr = &g->children; | |
4656 | } | |
4657 | ||
4658 | /* Leave a group. This just resets stat_ptr to start writing to the | |
4659 | regular list of statements again. Note that this will not work if | |
4660 | groups can occur inside anything else which can adjust stat_ptr, | |
4661 | but currently they can't. */ | |
4662 | ||
4663 | void | |
1579bae1 | 4664 | lang_leave_group (void) |
252b5132 RH |
4665 | { |
4666 | stat_ptr = &statement_list; | |
4667 | } | |
4668 | ||
4669 | /* Add a new program header. This is called for each entry in a PHDRS | |
4670 | command in a linker script. */ | |
4671 | ||
4672 | void | |
1579bae1 AM |
4673 | lang_new_phdr (const char *name, |
4674 | etree_type *type, | |
4675 | bfd_boolean filehdr, | |
4676 | bfd_boolean phdrs, | |
4677 | etree_type *at, | |
4678 | etree_type *flags) | |
252b5132 RH |
4679 | { |
4680 | struct lang_phdr *n, **pp; | |
4681 | ||
1579bae1 | 4682 | n = stat_alloc (sizeof (struct lang_phdr)); |
252b5132 RH |
4683 | n->next = NULL; |
4684 | n->name = name; | |
4685 | n->type = exp_get_value_int (type, 0, "program header type", | |
4686 | lang_final_phase_enum); | |
4687 | n->filehdr = filehdr; | |
4688 | n->phdrs = phdrs; | |
4689 | n->at = at; | |
4690 | n->flags = flags; | |
4691 | ||
4692 | for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next) | |
4693 | ; | |
4694 | *pp = n; | |
4695 | } | |
4696 | ||
4697 | /* Record the program header information in the output BFD. FIXME: We | |
4698 | should not be calling an ELF specific function here. */ | |
4699 | ||
4700 | static void | |
1579bae1 | 4701 | lang_record_phdrs (void) |
252b5132 RH |
4702 | { |
4703 | unsigned int alc; | |
4704 | asection **secs; | |
6bdafbeb | 4705 | lang_output_section_phdr_list *last; |
252b5132 RH |
4706 | struct lang_phdr *l; |
4707 | lang_statement_union_type *u; | |
4708 | ||
4709 | alc = 10; | |
1579bae1 | 4710 | secs = xmalloc (alc * sizeof (asection *)); |
252b5132 RH |
4711 | last = NULL; |
4712 | for (l = lang_phdr_list; l != NULL; l = l->next) | |
4713 | { | |
4714 | unsigned int c; | |
4715 | flagword flags; | |
4716 | bfd_vma at; | |
4717 | ||
4718 | c = 0; | |
4719 | for (u = lang_output_section_statement.head; | |
4720 | u != NULL; | |
4721 | u = u->output_section_statement.next) | |
4722 | { | |
4723 | lang_output_section_statement_type *os; | |
6bdafbeb | 4724 | lang_output_section_phdr_list *pl; |
252b5132 RH |
4725 | |
4726 | os = &u->output_section_statement; | |
4727 | ||
4728 | pl = os->phdrs; | |
4729 | if (pl != NULL) | |
4730 | last = pl; | |
4731 | else | |
4732 | { | |
4733 | if (os->sectype == noload_section | |
4734 | || os->bfd_section == NULL | |
4735 | || (os->bfd_section->flags & SEC_ALLOC) == 0) | |
4736 | continue; | |
4737 | pl = last; | |
4738 | } | |
4739 | ||
4740 | if (os->bfd_section == NULL) | |
4741 | continue; | |
4742 | ||
4743 | for (; pl != NULL; pl = pl->next) | |
4744 | { | |
4745 | if (strcmp (pl->name, l->name) == 0) | |
4746 | { | |
4747 | if (c >= alc) | |
4748 | { | |
4749 | alc *= 2; | |
1579bae1 | 4750 | secs = xrealloc (secs, alc * sizeof (asection *)); |
252b5132 RH |
4751 | } |
4752 | secs[c] = os->bfd_section; | |
4753 | ++c; | |
b34976b6 | 4754 | pl->used = TRUE; |
252b5132 RH |
4755 | } |
4756 | } | |
4757 | } | |
4758 | ||
4759 | if (l->flags == NULL) | |
4760 | flags = 0; | |
4761 | else | |
4762 | flags = exp_get_vma (l->flags, 0, "phdr flags", | |
4763 | lang_final_phase_enum); | |
4764 | ||
4765 | if (l->at == NULL) | |
4766 | at = 0; | |
4767 | else | |
4768 | at = exp_get_vma (l->at, 0, "phdr load address", | |
4769 | lang_final_phase_enum); | |
4770 | ||
4771 | if (! bfd_record_phdr (output_bfd, l->type, | |
d1778b88 | 4772 | l->flags != NULL, flags, l->at != NULL, |
252b5132 RH |
4773 | at, l->filehdr, l->phdrs, c, secs)) |
4774 | einfo (_("%F%P: bfd_record_phdr failed: %E\n")); | |
4775 | } | |
4776 | ||
4777 | free (secs); | |
4778 | ||
4779 | /* Make sure all the phdr assignments succeeded. */ | |
4780 | for (u = lang_output_section_statement.head; | |
4781 | u != NULL; | |
4782 | u = u->output_section_statement.next) | |
4783 | { | |
6bdafbeb | 4784 | lang_output_section_phdr_list *pl; |
252b5132 RH |
4785 | |
4786 | if (u->output_section_statement.bfd_section == NULL) | |
4787 | continue; | |
4788 | ||
4789 | for (pl = u->output_section_statement.phdrs; | |
4790 | pl != NULL; | |
4791 | pl = pl->next) | |
4792 | if (! pl->used && strcmp (pl->name, "NONE") != 0) | |
4793 | einfo (_("%X%P: section `%s' assigned to non-existent phdr `%s'\n"), | |
4794 | u->output_section_statement.name, pl->name); | |
4795 | } | |
4796 | } | |
4797 | ||
4798 | /* Record a list of sections which may not be cross referenced. */ | |
4799 | ||
4800 | void | |
6bdafbeb | 4801 | lang_add_nocrossref (lang_nocrossref_type *l) |
252b5132 RH |
4802 | { |
4803 | struct lang_nocrossrefs *n; | |
4804 | ||
1579bae1 | 4805 | n = xmalloc (sizeof *n); |
252b5132 RH |
4806 | n->next = nocrossref_list; |
4807 | n->list = l; | |
4808 | nocrossref_list = n; | |
4809 | ||
4810 | /* Set notice_all so that we get informed about all symbols. */ | |
b34976b6 | 4811 | link_info.notice_all = TRUE; |
252b5132 RH |
4812 | } |
4813 | \f | |
4814 | /* Overlay handling. We handle overlays with some static variables. */ | |
4815 | ||
4816 | /* The overlay virtual address. */ | |
4817 | static etree_type *overlay_vma; | |
7e7d5768 AM |
4818 | /* And subsection alignment. */ |
4819 | static etree_type *overlay_subalign; | |
252b5132 | 4820 | |
252b5132 RH |
4821 | /* An expression for the maximum section size seen so far. */ |
4822 | static etree_type *overlay_max; | |
4823 | ||
4824 | /* A list of all the sections in this overlay. */ | |
4825 | ||
89cdebba | 4826 | struct overlay_list { |
252b5132 RH |
4827 | struct overlay_list *next; |
4828 | lang_output_section_statement_type *os; | |
4829 | }; | |
4830 | ||
4831 | static struct overlay_list *overlay_list; | |
4832 | ||
4833 | /* Start handling an overlay. */ | |
4834 | ||
4835 | void | |
7e7d5768 | 4836 | lang_enter_overlay (etree_type *vma_expr, etree_type *subalign) |
252b5132 RH |
4837 | { |
4838 | /* The grammar should prevent nested overlays from occurring. */ | |
7e7d5768 AM |
4839 | ASSERT (overlay_vma == NULL |
4840 | && overlay_subalign == NULL | |
4841 | && overlay_max == NULL); | |
252b5132 RH |
4842 | |
4843 | overlay_vma = vma_expr; | |
7e7d5768 | 4844 | overlay_subalign = subalign; |
252b5132 RH |
4845 | } |
4846 | ||
4847 | /* Start a section in an overlay. We handle this by calling | |
9f88b410 RS |
4848 | lang_enter_output_section_statement with the correct VMA. |
4849 | lang_leave_overlay sets up the LMA and memory regions. */ | |
252b5132 RH |
4850 | |
4851 | void | |
1579bae1 | 4852 | lang_enter_overlay_section (const char *name) |
252b5132 RH |
4853 | { |
4854 | struct overlay_list *n; | |
4855 | etree_type *size; | |
4856 | ||
4857 | lang_enter_output_section_statement (name, overlay_vma, normal_section, | |
e5caa5e0 | 4858 | 0, overlay_subalign, 0); |
252b5132 | 4859 | |
9f88b410 | 4860 | /* If this is the first section, then base the VMA of future |
252b5132 RH |
4861 | sections on this one. This will work correctly even if `.' is |
4862 | used in the addresses. */ | |
4863 | if (overlay_list == NULL) | |
9f88b410 | 4864 | overlay_vma = exp_nameop (ADDR, name); |
252b5132 RH |
4865 | |
4866 | /* Remember the section. */ | |
1579bae1 | 4867 | n = xmalloc (sizeof *n); |
252b5132 RH |
4868 | n->os = current_section; |
4869 | n->next = overlay_list; | |
4870 | overlay_list = n; | |
4871 | ||
4872 | size = exp_nameop (SIZEOF, name); | |
4873 | ||
252b5132 RH |
4874 | /* Arrange to work out the maximum section end address. */ |
4875 | if (overlay_max == NULL) | |
4876 | overlay_max = size; | |
4877 | else | |
4878 | overlay_max = exp_binop (MAX_K, overlay_max, size); | |
4879 | } | |
4880 | ||
4881 | /* Finish a section in an overlay. There isn't any special to do | |
4882 | here. */ | |
4883 | ||
4884 | void | |
1579bae1 | 4885 | lang_leave_overlay_section (fill_type *fill, |
6bdafbeb | 4886 | lang_output_section_phdr_list *phdrs) |
252b5132 RH |
4887 | { |
4888 | const char *name; | |
4889 | char *clean, *s2; | |
4890 | const char *s1; | |
4891 | char *buf; | |
4892 | ||
4893 | name = current_section->name; | |
4894 | ||
a747ee4d NC |
4895 | /* For now, assume that DEFAULT_MEMORY_REGION is the run-time memory |
4896 | region and that no load-time region has been specified. It doesn't | |
4897 | really matter what we say here, since lang_leave_overlay will | |
4898 | override it. */ | |
4899 | lang_leave_output_section_statement (fill, DEFAULT_MEMORY_REGION, phdrs, 0); | |
252b5132 RH |
4900 | |
4901 | /* Define the magic symbols. */ | |
4902 | ||
4903 | clean = xmalloc (strlen (name) + 1); | |
4904 | s2 = clean; | |
4905 | for (s1 = name; *s1 != '\0'; s1++) | |
3882b010 | 4906 | if (ISALNUM (*s1) || *s1 == '_') |
252b5132 RH |
4907 | *s2++ = *s1; |
4908 | *s2 = '\0'; | |
4909 | ||
4910 | buf = xmalloc (strlen (clean) + sizeof "__load_start_"); | |
4911 | sprintf (buf, "__load_start_%s", clean); | |
4912 | lang_add_assignment (exp_assop ('=', buf, | |
4913 | exp_nameop (LOADADDR, name))); | |
4914 | ||
4915 | buf = xmalloc (strlen (clean) + sizeof "__load_stop_"); | |
4916 | sprintf (buf, "__load_stop_%s", clean); | |
4917 | lang_add_assignment (exp_assop ('=', buf, | |
4918 | exp_binop ('+', | |
4919 | exp_nameop (LOADADDR, name), | |
4920 | exp_nameop (SIZEOF, name)))); | |
4921 | ||
4922 | free (clean); | |
4923 | } | |
4924 | ||
4925 | /* Finish an overlay. If there are any overlay wide settings, this | |
4926 | looks through all the sections in the overlay and sets them. */ | |
4927 | ||
4928 | void | |
1579bae1 AM |
4929 | lang_leave_overlay (etree_type *lma_expr, |
4930 | int nocrossrefs, | |
4931 | fill_type *fill, | |
4932 | const char *memspec, | |
6bdafbeb | 4933 | lang_output_section_phdr_list *phdrs, |
1579bae1 | 4934 | const char *lma_memspec) |
252b5132 RH |
4935 | { |
4936 | lang_memory_region_type *region; | |
562d3460 | 4937 | lang_memory_region_type *lma_region; |
252b5132 | 4938 | struct overlay_list *l; |
6bdafbeb | 4939 | lang_nocrossref_type *nocrossref; |
252b5132 | 4940 | |
ee3cc2e2 RS |
4941 | lang_get_regions (®ion, &lma_region, |
4942 | memspec, lma_memspec, | |
6bdafbeb | 4943 | lma_expr != NULL, FALSE); |
562d3460 | 4944 | |
252b5132 RH |
4945 | nocrossref = NULL; |
4946 | ||
9f88b410 RS |
4947 | /* After setting the size of the last section, set '.' to end of the |
4948 | overlay region. */ | |
4949 | if (overlay_list != NULL) | |
4950 | overlay_list->os->update_dot_tree | |
4951 | = exp_assop ('=', ".", exp_binop ('+', overlay_vma, overlay_max)); | |
4952 | ||
252b5132 RH |
4953 | l = overlay_list; |
4954 | while (l != NULL) | |
4955 | { | |
4956 | struct overlay_list *next; | |
4957 | ||
1579bae1 | 4958 | if (fill != NULL && l->os->fill == NULL) |
252b5132 | 4959 | l->os->fill = fill; |
1545243b | 4960 | |
9f88b410 RS |
4961 | l->os->region = region; |
4962 | l->os->lma_region = lma_region; | |
4963 | ||
4964 | /* The first section has the load address specified in the | |
4965 | OVERLAY statement. The rest are worked out from that. | |
4966 | The base address is not needed (and should be null) if | |
4967 | an LMA region was specified. */ | |
4968 | if (l->next == 0) | |
4969 | l->os->load_base = lma_expr; | |
4970 | else if (lma_region == 0) | |
4971 | l->os->load_base = exp_binop ('+', | |
4972 | exp_nameop (LOADADDR, l->next->os->name), | |
4973 | exp_nameop (SIZEOF, l->next->os->name)); | |
1545243b | 4974 | |
252b5132 RH |
4975 | if (phdrs != NULL && l->os->phdrs == NULL) |
4976 | l->os->phdrs = phdrs; | |
4977 | ||
9f88b410 | 4978 | if (nocrossrefs) |
252b5132 | 4979 | { |
6bdafbeb | 4980 | lang_nocrossref_type *nc; |
252b5132 | 4981 | |
1579bae1 | 4982 | nc = xmalloc (sizeof *nc); |
252b5132 RH |
4983 | nc->name = l->os->name; |
4984 | nc->next = nocrossref; | |
4985 | nocrossref = nc; | |
4986 | } | |
4987 | ||
4988 | next = l->next; | |
4989 | free (l); | |
4990 | l = next; | |
4991 | } | |
4992 | ||
4993 | if (nocrossref != NULL) | |
4994 | lang_add_nocrossref (nocrossref); | |
4995 | ||
252b5132 | 4996 | overlay_vma = NULL; |
252b5132 RH |
4997 | overlay_list = NULL; |
4998 | overlay_max = NULL; | |
4999 | } | |
5000 | \f | |
5001 | /* Version handling. This is only useful for ELF. */ | |
5002 | ||
5003 | /* This global variable holds the version tree that we build. */ | |
5004 | ||
5005 | struct bfd_elf_version_tree *lang_elf_version_info; | |
5006 | ||
108ba305 JJ |
5007 | /* If PREV is NULL, return first version pattern matching particular symbol. |
5008 | If PREV is non-NULL, return first version pattern matching particular | |
5009 | symbol after PREV (previously returned by lang_vers_match). */ | |
252b5132 | 5010 | |
108ba305 JJ |
5011 | static struct bfd_elf_version_expr * |
5012 | lang_vers_match (struct bfd_elf_version_expr_head *head, | |
5013 | struct bfd_elf_version_expr *prev, | |
5014 | const char *sym) | |
252b5132 | 5015 | { |
108ba305 JJ |
5016 | const char *cxx_sym = sym; |
5017 | const char *java_sym = sym; | |
5018 | struct bfd_elf_version_expr *expr = NULL; | |
252b5132 | 5019 | |
108ba305 | 5020 | if (head->mask & BFD_ELF_VERSION_CXX_TYPE) |
252b5132 | 5021 | { |
2f97444a | 5022 | cxx_sym = cplus_demangle (sym, DMGL_PARAMS | DMGL_ANSI); |
108ba305 JJ |
5023 | if (!cxx_sym) |
5024 | cxx_sym = sym; | |
252b5132 | 5025 | } |
df816215 | 5026 | if (head->mask & BFD_ELF_VERSION_JAVA_TYPE) |
252b5132 | 5027 | { |
108ba305 JJ |
5028 | java_sym = cplus_demangle (sym, DMGL_JAVA); |
5029 | if (!java_sym) | |
5030 | java_sym = sym; | |
252b5132 RH |
5031 | } |
5032 | ||
5e35cbc2 | 5033 | if (head->htab && (prev == NULL || prev->symbol)) |
252b5132 | 5034 | { |
108ba305 JJ |
5035 | struct bfd_elf_version_expr e; |
5036 | ||
5037 | switch (prev ? prev->mask : 0) | |
5038 | { | |
5039 | case 0: | |
5040 | if (head->mask & BFD_ELF_VERSION_C_TYPE) | |
5041 | { | |
5e35cbc2 | 5042 | e.symbol = sym; |
108ba305 | 5043 | expr = htab_find (head->htab, &e); |
5e35cbc2 | 5044 | while (expr && strcmp (expr->symbol, sym) == 0) |
108ba305 JJ |
5045 | if (expr->mask == BFD_ELF_VERSION_C_TYPE) |
5046 | goto out_ret; | |
5047 | else | |
5048 | expr = expr->next; | |
5049 | } | |
5050 | /* Fallthrough */ | |
5051 | case BFD_ELF_VERSION_C_TYPE: | |
5052 | if (head->mask & BFD_ELF_VERSION_CXX_TYPE) | |
5053 | { | |
5e35cbc2 | 5054 | e.symbol = cxx_sym; |
108ba305 | 5055 | expr = htab_find (head->htab, &e); |
7a995eb3 | 5056 | while (expr && strcmp (expr->symbol, cxx_sym) == 0) |
108ba305 JJ |
5057 | if (expr->mask == BFD_ELF_VERSION_CXX_TYPE) |
5058 | goto out_ret; | |
5059 | else | |
5060 | expr = expr->next; | |
5061 | } | |
5062 | /* Fallthrough */ | |
5063 | case BFD_ELF_VERSION_CXX_TYPE: | |
5064 | if (head->mask & BFD_ELF_VERSION_JAVA_TYPE) | |
5065 | { | |
5e35cbc2 | 5066 | e.symbol = java_sym; |
108ba305 | 5067 | expr = htab_find (head->htab, &e); |
7a995eb3 | 5068 | while (expr && strcmp (expr->symbol, java_sym) == 0) |
108ba305 JJ |
5069 | if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE) |
5070 | goto out_ret; | |
5071 | else | |
5072 | expr = expr->next; | |
5073 | } | |
5074 | /* Fallthrough */ | |
5075 | default: | |
5076 | break; | |
5077 | } | |
252b5132 | 5078 | } |
108ba305 JJ |
5079 | |
5080 | /* Finally, try the wildcards. */ | |
5e35cbc2 | 5081 | if (prev == NULL || prev->symbol) |
108ba305 | 5082 | expr = head->remaining; |
252b5132 | 5083 | else |
108ba305 JJ |
5084 | expr = prev->next; |
5085 | while (expr) | |
252b5132 | 5086 | { |
108ba305 JJ |
5087 | const char *s; |
5088 | ||
5089 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') | |
5090 | break; | |
5091 | ||
5092 | if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE) | |
5093 | s = java_sym; | |
5094 | else if (expr->mask == BFD_ELF_VERSION_CXX_TYPE) | |
5095 | s = cxx_sym; | |
5096 | else | |
5097 | s = sym; | |
5e35cbc2 | 5098 | if (fnmatch (expr->pattern, s, 0) == 0) |
108ba305 JJ |
5099 | break; |
5100 | expr = expr->next; | |
252b5132 RH |
5101 | } |
5102 | ||
108ba305 JJ |
5103 | out_ret: |
5104 | if (cxx_sym != sym) | |
5105 | free ((char *) cxx_sym); | |
5106 | if (java_sym != sym) | |
5107 | free ((char *) java_sym); | |
5108 | return expr; | |
252b5132 RH |
5109 | } |
5110 | ||
5e35cbc2 L |
5111 | /* Return NULL if the PATTERN argument is a glob pattern, otherwise, |
5112 | return a string pointing to the symbol name. */ | |
5113 | ||
5114 | static const char * | |
5115 | realsymbol (const char *pattern) | |
5116 | { | |
5117 | const char *p; | |
5118 | bfd_boolean changed = FALSE, backslash = FALSE; | |
5119 | char *s, *symbol = xmalloc (strlen (pattern) + 1); | |
5120 | ||
5121 | for (p = pattern, s = symbol; *p != '\0'; ++p) | |
5122 | { | |
5123 | /* It is a glob pattern only if there is no preceding | |
5124 | backslash. */ | |
5125 | if (! backslash && (*p == '?' || *p == '*' || *p == '[')) | |
5126 | { | |
5127 | free (symbol); | |
5128 | return NULL; | |
5129 | } | |
5130 | ||
5131 | if (backslash) | |
5132 | { | |
5133 | /* Remove the preceding backslash. */ | |
5134 | *(s - 1) = *p; | |
5135 | changed = TRUE; | |
5136 | } | |
5137 | else | |
5138 | *s++ = *p; | |
5139 | ||
5140 | backslash = *p == '\\'; | |
5141 | } | |
5142 | ||
5143 | if (changed) | |
5144 | { | |
5145 | *s = '\0'; | |
5146 | return symbol; | |
5147 | } | |
5148 | else | |
5149 | { | |
5150 | free (symbol); | |
5151 | return pattern; | |
5152 | } | |
5153 | } | |
5154 | ||
252b5132 RH |
5155 | /* This is called for each variable name or match expression. */ |
5156 | ||
5157 | struct bfd_elf_version_expr * | |
1579bae1 AM |
5158 | lang_new_vers_pattern (struct bfd_elf_version_expr *orig, |
5159 | const char *new, | |
5160 | const char *lang) | |
252b5132 RH |
5161 | { |
5162 | struct bfd_elf_version_expr *ret; | |
5163 | ||
1579bae1 | 5164 | ret = xmalloc (sizeof *ret); |
252b5132 RH |
5165 | ret->next = orig; |
5166 | ret->pattern = new; | |
31941635 L |
5167 | ret->symver = 0; |
5168 | ret->script = 0; | |
5e35cbc2 | 5169 | ret->symbol = realsymbol (new); |
252b5132 RH |
5170 | |
5171 | if (lang == NULL || strcasecmp (lang, "C") == 0) | |
108ba305 | 5172 | ret->mask = BFD_ELF_VERSION_C_TYPE; |
252b5132 | 5173 | else if (strcasecmp (lang, "C++") == 0) |
108ba305 | 5174 | ret->mask = BFD_ELF_VERSION_CXX_TYPE; |
252b5132 | 5175 | else if (strcasecmp (lang, "Java") == 0) |
108ba305 | 5176 | ret->mask = BFD_ELF_VERSION_JAVA_TYPE; |
252b5132 RH |
5177 | else |
5178 | { | |
5179 | einfo (_("%X%P: unknown language `%s' in version information\n"), | |
5180 | lang); | |
108ba305 | 5181 | ret->mask = BFD_ELF_VERSION_C_TYPE; |
252b5132 RH |
5182 | } |
5183 | ||
fac1652d | 5184 | return ldemul_new_vers_pattern (ret); |
252b5132 RH |
5185 | } |
5186 | ||
5187 | /* This is called for each set of variable names and match | |
5188 | expressions. */ | |
5189 | ||
5190 | struct bfd_elf_version_tree * | |
1579bae1 AM |
5191 | lang_new_vers_node (struct bfd_elf_version_expr *globals, |
5192 | struct bfd_elf_version_expr *locals) | |
252b5132 RH |
5193 | { |
5194 | struct bfd_elf_version_tree *ret; | |
5195 | ||
108ba305 JJ |
5196 | ret = xcalloc (1, sizeof *ret); |
5197 | ret->globals.list = globals; | |
5198 | ret->locals.list = locals; | |
5199 | ret->match = lang_vers_match; | |
252b5132 | 5200 | ret->name_indx = (unsigned int) -1; |
252b5132 RH |
5201 | return ret; |
5202 | } | |
5203 | ||
5204 | /* This static variable keeps track of version indices. */ | |
5205 | ||
5206 | static int version_index; | |
5207 | ||
108ba305 JJ |
5208 | static hashval_t |
5209 | version_expr_head_hash (const void *p) | |
5210 | { | |
5211 | const struct bfd_elf_version_expr *e = p; | |
5212 | ||
5e35cbc2 | 5213 | return htab_hash_string (e->symbol); |
108ba305 JJ |
5214 | } |
5215 | ||
5216 | static int | |
5217 | version_expr_head_eq (const void *p1, const void *p2) | |
5218 | { | |
5219 | const struct bfd_elf_version_expr *e1 = p1; | |
5220 | const struct bfd_elf_version_expr *e2 = p2; | |
5221 | ||
5e35cbc2 | 5222 | return strcmp (e1->symbol, e2->symbol) == 0; |
108ba305 JJ |
5223 | } |
5224 | ||
5225 | static void | |
5226 | lang_finalize_version_expr_head (struct bfd_elf_version_expr_head *head) | |
5227 | { | |
5228 | size_t count = 0; | |
5229 | struct bfd_elf_version_expr *e, *next; | |
5230 | struct bfd_elf_version_expr **list_loc, **remaining_loc; | |
5231 | ||
5232 | for (e = head->list; e; e = e->next) | |
5233 | { | |
5e35cbc2 | 5234 | if (e->symbol) |
108ba305 JJ |
5235 | count++; |
5236 | head->mask |= e->mask; | |
5237 | } | |
5238 | ||
5239 | if (count) | |
5240 | { | |
5241 | head->htab = htab_create (count * 2, version_expr_head_hash, | |
5242 | version_expr_head_eq, NULL); | |
5243 | list_loc = &head->list; | |
5244 | remaining_loc = &head->remaining; | |
5245 | for (e = head->list; e; e = next) | |
5246 | { | |
5247 | next = e->next; | |
5e35cbc2 | 5248 | if (!e->symbol) |
108ba305 JJ |
5249 | { |
5250 | *remaining_loc = e; | |
5251 | remaining_loc = &e->next; | |
5252 | } | |
5253 | else | |
5254 | { | |
5255 | void **loc = htab_find_slot (head->htab, e, INSERT); | |
5256 | ||
5257 | if (*loc) | |
5258 | { | |
5259 | struct bfd_elf_version_expr *e1, *last; | |
5260 | ||
5261 | e1 = *loc; | |
5262 | last = NULL; | |
5263 | do | |
5264 | { | |
5265 | if (e1->mask == e->mask) | |
5266 | { | |
5267 | last = NULL; | |
5268 | break; | |
5269 | } | |
5270 | last = e1; | |
5271 | e1 = e1->next; | |
5272 | } | |
5e35cbc2 | 5273 | while (e1 && strcmp (e1->symbol, e->symbol) == 0); |
108ba305 JJ |
5274 | |
5275 | if (last == NULL) | |
5276 | { | |
5277 | /* This is a duplicate. */ | |
5278 | /* FIXME: Memory leak. Sometimes pattern is not | |
5279 | xmalloced alone, but in larger chunk of memory. */ | |
5e35cbc2 | 5280 | /* free (e->symbol); */ |
108ba305 JJ |
5281 | free (e); |
5282 | } | |
5283 | else | |
5284 | { | |
5285 | e->next = last->next; | |
5286 | last->next = e; | |
5287 | } | |
5288 | } | |
5289 | else | |
5290 | { | |
5291 | *loc = e; | |
5292 | *list_loc = e; | |
5293 | list_loc = &e->next; | |
5294 | } | |
5295 | } | |
5296 | } | |
5297 | *remaining_loc = NULL; | |
5298 | *list_loc = head->remaining; | |
5299 | } | |
5300 | else | |
5301 | head->remaining = head->list; | |
5302 | } | |
5303 | ||
252b5132 RH |
5304 | /* This is called when we know the name and dependencies of the |
5305 | version. */ | |
5306 | ||
5307 | void | |
1579bae1 AM |
5308 | lang_register_vers_node (const char *name, |
5309 | struct bfd_elf_version_tree *version, | |
5310 | struct bfd_elf_version_deps *deps) | |
252b5132 RH |
5311 | { |
5312 | struct bfd_elf_version_tree *t, **pp; | |
5313 | struct bfd_elf_version_expr *e1; | |
5314 | ||
6b9b879a JJ |
5315 | if (name == NULL) |
5316 | name = ""; | |
5317 | ||
5318 | if ((name[0] == '\0' && lang_elf_version_info != NULL) | |
5319 | || (lang_elf_version_info && lang_elf_version_info->name[0] == '\0')) | |
5320 | { | |
5321 | einfo (_("%X%P: anonymous version tag cannot be combined with other version tags\n")); | |
5ed6aba4 | 5322 | free (version); |
6b9b879a JJ |
5323 | return; |
5324 | } | |
5325 | ||
252b5132 RH |
5326 | /* Make sure this node has a unique name. */ |
5327 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5328 | if (strcmp (t->name, name) == 0) | |
5329 | einfo (_("%X%P: duplicate version tag `%s'\n"), name); | |
5330 | ||
108ba305 JJ |
5331 | lang_finalize_version_expr_head (&version->globals); |
5332 | lang_finalize_version_expr_head (&version->locals); | |
5333 | ||
252b5132 RH |
5334 | /* Check the global and local match names, and make sure there |
5335 | aren't any duplicates. */ | |
5336 | ||
108ba305 | 5337 | for (e1 = version->globals.list; e1 != NULL; e1 = e1->next) |
252b5132 RH |
5338 | { |
5339 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5340 | { | |
5341 | struct bfd_elf_version_expr *e2; | |
5342 | ||
5e35cbc2 | 5343 | if (t->locals.htab && e1->symbol) |
108ba305 JJ |
5344 | { |
5345 | e2 = htab_find (t->locals.htab, e1); | |
5e35cbc2 | 5346 | while (e2 && strcmp (e1->symbol, e2->symbol) == 0) |
108ba305 JJ |
5347 | { |
5348 | if (e1->mask == e2->mask) | |
5349 | einfo (_("%X%P: duplicate expression `%s' in version information\n"), | |
5e35cbc2 | 5350 | e1->symbol); |
108ba305 JJ |
5351 | e2 = e2->next; |
5352 | } | |
5353 | } | |
5e35cbc2 | 5354 | else if (!e1->symbol) |
108ba305 JJ |
5355 | for (e2 = t->locals.remaining; e2 != NULL; e2 = e2->next) |
5356 | if (strcmp (e1->pattern, e2->pattern) == 0 && e1->mask == e2->mask) | |
5357 | einfo (_("%X%P: duplicate expression `%s' in version information\n"), | |
5358 | e1->pattern); | |
252b5132 RH |
5359 | } |
5360 | } | |
5361 | ||
108ba305 | 5362 | for (e1 = version->locals.list; e1 != NULL; e1 = e1->next) |
252b5132 RH |
5363 | { |
5364 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5365 | { | |
5366 | struct bfd_elf_version_expr *e2; | |
5367 | ||
5e35cbc2 | 5368 | if (t->globals.htab && e1->symbol) |
108ba305 JJ |
5369 | { |
5370 | e2 = htab_find (t->globals.htab, e1); | |
5e35cbc2 | 5371 | while (e2 && strcmp (e1->symbol, e2->symbol) == 0) |
108ba305 JJ |
5372 | { |
5373 | if (e1->mask == e2->mask) | |
5374 | einfo (_("%X%P: duplicate expression `%s' in version information\n"), | |
5e35cbc2 | 5375 | e1->symbol); |
108ba305 JJ |
5376 | e2 = e2->next; |
5377 | } | |
5378 | } | |
5e35cbc2 | 5379 | else if (!e1->symbol) |
108ba305 JJ |
5380 | for (e2 = t->globals.remaining; e2 != NULL; e2 = e2->next) |
5381 | if (strcmp (e1->pattern, e2->pattern) == 0 && e1->mask == e2->mask) | |
5382 | einfo (_("%X%P: duplicate expression `%s' in version information\n"), | |
5383 | e1->pattern); | |
252b5132 RH |
5384 | } |
5385 | } | |
5386 | ||
5387 | version->deps = deps; | |
5388 | version->name = name; | |
6b9b879a JJ |
5389 | if (name[0] != '\0') |
5390 | { | |
5391 | ++version_index; | |
5392 | version->vernum = version_index; | |
5393 | } | |
5394 | else | |
5395 | version->vernum = 0; | |
252b5132 RH |
5396 | |
5397 | for (pp = &lang_elf_version_info; *pp != NULL; pp = &(*pp)->next) | |
5398 | ; | |
5399 | *pp = version; | |
5400 | } | |
5401 | ||
5402 | /* This is called when we see a version dependency. */ | |
5403 | ||
5404 | struct bfd_elf_version_deps * | |
1579bae1 | 5405 | lang_add_vers_depend (struct bfd_elf_version_deps *list, const char *name) |
252b5132 RH |
5406 | { |
5407 | struct bfd_elf_version_deps *ret; | |
5408 | struct bfd_elf_version_tree *t; | |
5409 | ||
1579bae1 | 5410 | ret = xmalloc (sizeof *ret); |
252b5132 RH |
5411 | ret->next = list; |
5412 | ||
5413 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5414 | { | |
5415 | if (strcmp (t->name, name) == 0) | |
5416 | { | |
5417 | ret->version_needed = t; | |
5418 | return ret; | |
5419 | } | |
5420 | } | |
5421 | ||
5422 | einfo (_("%X%P: unable to find version dependency `%s'\n"), name); | |
5423 | ||
5424 | return ret; | |
5425 | } | |
5426 | ||
5427 | static void | |
1579bae1 | 5428 | lang_do_version_exports_section (void) |
252b5132 RH |
5429 | { |
5430 | struct bfd_elf_version_expr *greg = NULL, *lreg; | |
5431 | ||
5432 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
5433 | { | |
5434 | asection *sec = bfd_get_section_by_name (is->the_bfd, ".exports"); | |
5435 | char *contents, *p; | |
5436 | bfd_size_type len; | |
5437 | ||
5438 | if (sec == NULL) | |
b7a26f91 | 5439 | continue; |
252b5132 RH |
5440 | |
5441 | len = bfd_section_size (is->the_bfd, sec); | |
5442 | contents = xmalloc (len); | |
5443 | if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len)) | |
6f9efd97 | 5444 | einfo (_("%X%P: unable to read .exports section contents\n"), sec); |
252b5132 RH |
5445 | |
5446 | p = contents; | |
89cdebba | 5447 | while (p < contents + len) |
252b5132 | 5448 | { |
313e35ee | 5449 | greg = lang_new_vers_pattern (greg, p, NULL); |
252b5132 RH |
5450 | p = strchr (p, '\0') + 1; |
5451 | } | |
5452 | ||
5453 | /* Do not free the contents, as we used them creating the regex. */ | |
5454 | ||
5455 | /* Do not include this section in the link. */ | |
5456 | bfd_set_section_flags (is->the_bfd, sec, | |
5457 | bfd_get_section_flags (is->the_bfd, sec) | SEC_EXCLUDE); | |
5458 | } | |
5459 | ||
313e35ee | 5460 | lreg = lang_new_vers_pattern (NULL, "*", NULL); |
252b5132 RH |
5461 | lang_register_vers_node (command_line.version_exports_section, |
5462 | lang_new_vers_node (greg, lreg), NULL); | |
5463 | } | |
577a0623 AM |
5464 | |
5465 | void | |
1579bae1 | 5466 | lang_add_unique (const char *name) |
577a0623 AM |
5467 | { |
5468 | struct unique_sections *ent; | |
5469 | ||
5470 | for (ent = unique_section_list; ent; ent = ent->next) | |
5471 | if (strcmp (ent->name, name) == 0) | |
5472 | return; | |
5473 | ||
1579bae1 | 5474 | ent = xmalloc (sizeof *ent); |
577a0623 AM |
5475 | ent->name = xstrdup (name); |
5476 | ent->next = unique_section_list; | |
5477 | unique_section_list = ent; | |
5478 | } |