Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Linker command language support. |
a2b64bed | 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
34efb449 | 3 | 2001, 2002 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
6 | This file is part of GLD, the Gnu Linker. | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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. */ | |
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" | |
2c382fb6 | 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" | |
42 | ||
252b5132 | 43 | /* FORWARDS */ |
d1778b88 AM |
44 | static lang_statement_union_type *new_statement |
45 | PARAMS ((enum statement_enum, size_t, lang_statement_list_type *)); | |
252b5132 | 46 | |
252b5132 RH |
47 | /* LOCALS */ |
48 | static struct obstack stat_obstack; | |
49 | ||
50 | #define obstack_chunk_alloc xmalloc | |
51 | #define obstack_chunk_free free | |
5f992e62 | 52 | static const char *startup_file; |
252b5132 RH |
53 | static lang_statement_list_type input_file_chain; |
54 | static boolean placed_commons = false; | |
55 | static lang_output_section_statement_type *default_common_section; | |
56 | static boolean map_option_f; | |
57 | static bfd_vma print_dot; | |
58 | static lang_input_statement_type *first_file; | |
5f992e62 AM |
59 | static const char *current_target; |
60 | static const char *output_target; | |
252b5132 RH |
61 | static lang_statement_list_type statement_list; |
62 | static struct lang_phdr *lang_phdr_list; | |
63 | ||
64 | static void lang_for_each_statement_worker | |
5f992e62 AM |
65 | PARAMS ((void (*) (lang_statement_union_type *), |
66 | lang_statement_union_type *)); | |
252b5132 | 67 | static lang_input_statement_type *new_afile |
5f992e62 AM |
68 | PARAMS ((const char *, lang_input_file_enum_type, const char *, boolean)); |
69 | static lang_memory_region_type *lang_memory_default PARAMS ((asection *)); | |
70 | static void lang_map_flags PARAMS ((flagword)); | |
71 | static void init_os PARAMS ((lang_output_section_statement_type *)); | |
252b5132 RH |
72 | static void exp_init_os PARAMS ((etree_type *)); |
73 | static void section_already_linked PARAMS ((bfd *, asection *, PTR)); | |
9503fd87 | 74 | static struct bfd_hash_entry *already_linked_newfunc |
5f992e62 | 75 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
9503fd87 ILT |
76 | static void already_linked_table_init PARAMS ((void)); |
77 | static void already_linked_table_free PARAMS ((void)); | |
252b5132 RH |
78 | static boolean wildcardp PARAMS ((const char *)); |
79 | static lang_statement_union_type *wild_sort | |
b6bf44ba AM |
80 | PARAMS ((lang_wild_statement_type *, struct wildcard_list *, |
81 | lang_input_statement_type *, asection *)); | |
5f992e62 | 82 | static void output_section_callback |
b6bf44ba | 83 | PARAMS ((lang_wild_statement_type *, struct wildcard_list *, asection *, |
5f992e62 AM |
84 | lang_input_statement_type *, PTR)); |
85 | static lang_input_statement_type *lookup_name PARAMS ((const char *)); | |
6770ec8c | 86 | static boolean load_symbols |
5f992e62 AM |
87 | PARAMS ((lang_input_statement_type *, lang_statement_list_type *)); |
88 | static void wild | |
b6bf44ba | 89 | PARAMS ((lang_wild_statement_type *, |
5f992e62 AM |
90 | const char *, lang_output_section_statement_type *)); |
91 | static bfd *open_output PARAMS ((const char *)); | |
92 | static void ldlang_open_output PARAMS ((lang_statement_union_type *)); | |
93 | static void open_input_bfds PARAMS ((lang_statement_union_type *, boolean)); | |
252b5132 | 94 | static void lang_reasonable_defaults PARAMS ((void)); |
fcf0e35b | 95 | static void insert_undefined PARAMS ((const char *)); |
252b5132 RH |
96 | static void lang_place_undefineds PARAMS ((void)); |
97 | static void map_input_to_output_sections | |
5f992e62 AM |
98 | PARAMS ((lang_statement_union_type *, const char *, |
99 | lang_output_section_statement_type *)); | |
252b5132 | 100 | static void print_output_section_statement |
5f992e62 | 101 | PARAMS ((lang_output_section_statement_type *)); |
252b5132 | 102 | static void print_assignment |
5f992e62 AM |
103 | PARAMS ((lang_assignment_statement_type *, |
104 | lang_output_section_statement_type *)); | |
105 | static void print_input_statement PARAMS ((lang_input_statement_type *)); | |
252b5132 | 106 | static boolean print_one_symbol PARAMS ((struct bfd_link_hash_entry *, PTR)); |
5f992e62 AM |
107 | static void print_input_section PARAMS ((lang_input_section_type *)); |
108 | static void print_fill_statement PARAMS ((lang_fill_statement_type *)); | |
109 | static void print_data_statement PARAMS ((lang_data_statement_type *)); | |
252b5132 | 110 | static void print_address_statement PARAMS ((lang_address_statement_type *)); |
5f992e62 AM |
111 | static void print_reloc_statement PARAMS ((lang_reloc_statement_type *)); |
112 | static void print_padding_statement PARAMS ((lang_padding_statement_type *)); | |
252b5132 | 113 | static void print_wild_statement |
5f992e62 | 114 | PARAMS ((lang_wild_statement_type *, lang_output_section_statement_type *)); |
252b5132 RH |
115 | static void print_group |
116 | PARAMS ((lang_group_statement_type *, lang_output_section_statement_type *)); | |
5f992e62 AM |
117 | static void print_statement |
118 | PARAMS ((lang_statement_union_type *, lang_output_section_statement_type *)); | |
119 | static void print_statement_list | |
120 | PARAMS ((lang_statement_union_type *, lang_output_section_statement_type *)); | |
252b5132 | 121 | static void print_statements PARAMS ((void)); |
b3327aad | 122 | static void insert_pad |
2c382fb6 | 123 | PARAMS ((lang_statement_union_type **, fill_type *, |
2be3aa03 | 124 | unsigned int, asection *, bfd_vma)); |
252b5132 | 125 | static bfd_vma size_input_section |
2be3aa03 | 126 | PARAMS ((lang_statement_union_type **, lang_output_section_statement_type *, |
2c382fb6 | 127 | fill_type *, bfd_vma)); |
252b5132 RH |
128 | static void lang_finish PARAMS ((void)); |
129 | static void ignore_bfd_errors PARAMS ((const char *, ...)); | |
130 | static void lang_check PARAMS ((void)); | |
131 | static void lang_common PARAMS ((void)); | |
132 | static boolean lang_one_common PARAMS ((struct bfd_link_hash_entry *, PTR)); | |
133 | static void lang_place_orphans PARAMS ((void)); | |
134 | static int topower PARAMS ((int)); | |
135 | static void lang_set_startof PARAMS ((void)); | |
5f992e62 | 136 | static void gc_section_callback |
b6bf44ba | 137 | PARAMS ((lang_wild_statement_type *, struct wildcard_list *, asection *, |
5f992e62 | 138 | lang_input_statement_type *, PTR)); |
252b5132 | 139 | static void lang_record_phdrs PARAMS ((void)); |
b6bf44ba | 140 | static void lang_gc_wild PARAMS ((lang_wild_statement_type *)); |
252b5132 RH |
141 | static void lang_gc_sections_1 PARAMS ((lang_statement_union_type *)); |
142 | static void lang_gc_sections PARAMS ((void)); | |
5f992e62 AM |
143 | static int lang_vers_match_lang_c |
144 | PARAMS ((struct bfd_elf_version_expr *, const char *)); | |
145 | static int lang_vers_match_lang_cplusplus | |
146 | PARAMS ((struct bfd_elf_version_expr *, const char *)); | |
147 | static int lang_vers_match_lang_java | |
148 | PARAMS ((struct bfd_elf_version_expr *, const char *)); | |
252b5132 RH |
149 | static void lang_do_version_exports_section PARAMS ((void)); |
150 | static void lang_check_section_addresses PARAMS ((void)); | |
5f992e62 AM |
151 | static void os_region_check |
152 | PARAMS ((lang_output_section_statement_type *, | |
153 | struct memory_region_struct *, etree_type *, bfd_vma)); | |
2d20f7bf JJ |
154 | static bfd_vma lang_size_sections_1 |
155 | PARAMS ((lang_statement_union_type *, lang_output_section_statement_type *, | |
2c382fb6 | 156 | lang_statement_union_type **, fill_type *, bfd_vma, boolean *)); |
252b5132 | 157 | |
4dec4d4e | 158 | typedef void (*callback_t) PARAMS ((lang_wild_statement_type *, |
b6bf44ba AM |
159 | struct wildcard_list *, |
160 | asection *, | |
161 | lang_input_statement_type *, | |
5f992e62 AM |
162 | PTR)); |
163 | static void walk_wild | |
b6bf44ba | 164 | PARAMS ((lang_wild_statement_type *, callback_t, PTR)); |
4dec4d4e | 165 | static void walk_wild_section |
b6bf44ba AM |
166 | PARAMS ((lang_wild_statement_type *, lang_input_statement_type *, |
167 | callback_t, PTR)); | |
4dec4d4e | 168 | static void walk_wild_file |
b6bf44ba AM |
169 | PARAMS ((lang_wild_statement_type *, lang_input_statement_type *, |
170 | callback_t, PTR)); | |
e50d8076 | 171 | |
5f992e62 | 172 | static int get_target PARAMS ((const bfd_target *, PTR)); |
e50d8076 NC |
173 | static void stricpy PARAMS ((char *, char *)); |
174 | static void strcut PARAMS ((char *, char *)); | |
175 | static int name_compare PARAMS ((char *, char *)); | |
5f992e62 | 176 | static int closest_target_match PARAMS ((const bfd_target *, PTR)); |
e50d8076 | 177 | static char * get_first_input_target PARAMS ((void)); |
5f992e62 | 178 | |
252b5132 RH |
179 | /* EXPORTS */ |
180 | lang_output_section_statement_type *abs_output_section; | |
aea4bd9d | 181 | lang_statement_list_type lang_output_section_statement; |
252b5132 | 182 | lang_statement_list_type *stat_ptr = &statement_list; |
87f2a346 | 183 | lang_statement_list_type file_chain = { NULL, NULL }; |
252b5132 | 184 | const char *entry_symbol = NULL; |
1e281515 | 185 | const char *entry_section = ".text"; |
252b5132 RH |
186 | boolean entry_from_cmdline; |
187 | boolean lang_has_input_file = false; | |
188 | boolean had_output_filename = false; | |
189 | boolean lang_float_flag = false; | |
190 | boolean delete_output_file_on_failure = false; | |
191 | struct lang_nocrossrefs *nocrossref_list; | |
577a0623 | 192 | struct unique_sections *unique_section_list; |
252b5132 RH |
193 | |
194 | etree_type *base; /* Relocation base - or null */ | |
195 | ||
d1778b88 | 196 | #if defined (__STDC__) || defined (ALMOST_STDC) |
252b5132 RH |
197 | #define cat(a,b) a##b |
198 | #else | |
199 | #define cat(a,b) a/**/b | |
200 | #endif | |
201 | ||
d1778b88 AM |
202 | /* Don't beautify the line below with "innocent" whitespace, it breaks |
203 | the K&R C preprocessor! */ | |
204 | #define new_stat(x, y) \ | |
205 | (cat (x,_type)*) new_statement (cat (x,_enum), sizeof (cat (x,_type)), y) | |
252b5132 | 206 | |
d1778b88 AM |
207 | #define outside_section_address(q) \ |
208 | ((q)->output_offset + (q)->output_section->vma) | |
252b5132 | 209 | |
d1778b88 AM |
210 | #define outside_symbol_address(q) \ |
211 | ((q)->value + outside_section_address (q->section)) | |
252b5132 RH |
212 | |
213 | #define SECTION_NAME_MAP_LENGTH (16) | |
214 | ||
215 | PTR | |
216 | stat_alloc (size) | |
217 | size_t size; | |
218 | { | |
219 | return obstack_alloc (&stat_obstack, size); | |
220 | } | |
221 | ||
577a0623 AM |
222 | boolean |
223 | unique_section_p (secnam) | |
224 | const char *secnam; | |
225 | { | |
226 | struct unique_sections *unam; | |
227 | ||
228 | for (unam = unique_section_list; unam; unam = unam->next) | |
229 | if (wildcardp (unam->name) | |
230 | ? fnmatch (unam->name, secnam, 0) == 0 | |
231 | : strcmp (unam->name, secnam) == 0) | |
232 | { | |
233 | return true; | |
234 | } | |
235 | ||
236 | return false; | |
237 | } | |
238 | ||
08da4cac | 239 | /* Generic traversal routines for finding matching sections. */ |
4dec4d4e RH |
240 | |
241 | static void | |
b6bf44ba | 242 | walk_wild_section (ptr, file, callback, data) |
4dec4d4e | 243 | lang_wild_statement_type *ptr; |
4dec4d4e RH |
244 | lang_input_statement_type *file; |
245 | callback_t callback; | |
5f992e62 | 246 | PTR data; |
4dec4d4e | 247 | { |
b6bf44ba AM |
248 | asection *s; |
249 | ||
250 | if (file->just_syms_flag) | |
251 | return; | |
252 | ||
253 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
4dec4d4e | 254 | { |
b6bf44ba AM |
255 | struct wildcard_list *sec; |
256 | ||
257 | sec = ptr->section_list; | |
2181f54f AM |
258 | if (sec == NULL) |
259 | (*callback) (ptr, sec, s, file, data); | |
260 | ||
261 | while (sec != NULL) | |
08da4cac | 262 | { |
b6bf44ba | 263 | boolean skip = false; |
2181f54f AM |
264 | struct name_list *list_tmp; |
265 | ||
266 | /* Don't process sections from files which were | |
267 | excluded. */ | |
268 | for (list_tmp = sec->spec.exclude_name_list; | |
269 | list_tmp; | |
270 | list_tmp = list_tmp->next) | |
271 | { | |
272 | if (wildcardp (list_tmp->name)) | |
273 | skip = fnmatch (list_tmp->name, file->filename, 0) == 0; | |
274 | else | |
275 | skip = strcmp (list_tmp->name, file->filename) == 0; | |
4dec4d4e | 276 | |
34efb449 AO |
277 | /* If this file is part of an archive, and the archive is |
278 | excluded, exclude this file. */ | |
279 | if (! skip && file->the_bfd != NULL | |
280 | && file->the_bfd->my_archive != NULL | |
281 | && file->the_bfd->my_archive->filename != NULL) | |
282 | { | |
283 | if (wildcardp (list_tmp->name)) | |
284 | skip = fnmatch (list_tmp->name, | |
285 | file->the_bfd->my_archive->filename, | |
286 | 0) == 0; | |
287 | else | |
288 | skip = strcmp (list_tmp->name, | |
289 | file->the_bfd->my_archive->filename) == 0; | |
290 | } | |
291 | ||
2181f54f AM |
292 | if (skip) |
293 | break; | |
294 | } | |
295 | ||
296 | if (!skip && sec->spec.name != NULL) | |
b6bf44ba | 297 | { |
2181f54f AM |
298 | const char *sname = bfd_get_section_name (file->the_bfd, s); |
299 | ||
300 | if (wildcardp (sec->spec.name)) | |
301 | skip = fnmatch (sec->spec.name, sname, 0) != 0; | |
302 | else | |
303 | skip = strcmp (sec->spec.name, sname) != 0; | |
b6bf44ba | 304 | } |
4dec4d4e | 305 | |
b6bf44ba AM |
306 | if (!skip) |
307 | (*callback) (ptr, sec, s, file, data); | |
4dec4d4e | 308 | |
2181f54f | 309 | sec = sec->next; |
4dec4d4e RH |
310 | } |
311 | } | |
312 | } | |
313 | ||
314 | /* Handle a wild statement for a single file F. */ | |
315 | ||
316 | static void | |
b6bf44ba | 317 | walk_wild_file (s, f, callback, data) |
4dec4d4e | 318 | lang_wild_statement_type *s; |
4dec4d4e RH |
319 | lang_input_statement_type *f; |
320 | callback_t callback; | |
5f992e62 | 321 | PTR data; |
4dec4d4e RH |
322 | { |
323 | if (f->the_bfd == NULL | |
324 | || ! bfd_check_format (f->the_bfd, bfd_archive)) | |
b6bf44ba | 325 | walk_wild_section (s, f, callback, data); |
4dec4d4e RH |
326 | else |
327 | { | |
328 | bfd *member; | |
329 | ||
330 | /* This is an archive file. We must map each member of the | |
331 | archive separately. */ | |
332 | member = bfd_openr_next_archived_file (f->the_bfd, (bfd *) NULL); | |
333 | while (member != NULL) | |
334 | { | |
335 | /* When lookup_name is called, it will call the add_symbols | |
336 | entry point for the archive. For each element of the | |
337 | archive which is included, BFD will call ldlang_add_file, | |
338 | which will set the usrdata field of the member to the | |
339 | lang_input_statement. */ | |
340 | if (member->usrdata != NULL) | |
341 | { | |
b6bf44ba | 342 | walk_wild_section (s, |
4dec4d4e RH |
343 | (lang_input_statement_type *) member->usrdata, |
344 | callback, data); | |
345 | } | |
346 | ||
347 | member = bfd_openr_next_archived_file (f->the_bfd, member); | |
348 | } | |
349 | } | |
350 | } | |
351 | ||
352 | static void | |
b6bf44ba | 353 | walk_wild (s, callback, data) |
4dec4d4e | 354 | lang_wild_statement_type *s; |
4dec4d4e | 355 | callback_t callback; |
5f992e62 | 356 | PTR data; |
4dec4d4e | 357 | { |
b6bf44ba AM |
358 | const char *file_spec = s->filename; |
359 | ||
360 | if (file_spec == NULL) | |
4dec4d4e RH |
361 | { |
362 | /* Perform the iteration over all files in the list. */ | |
e50d8076 | 363 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 364 | { |
b6bf44ba | 365 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
366 | } |
367 | } | |
b6bf44ba | 368 | else if (wildcardp (file_spec)) |
4dec4d4e | 369 | { |
e50d8076 | 370 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 371 | { |
b6bf44ba AM |
372 | if (fnmatch (file_spec, f->filename, FNM_FILE_NAME) == 0) |
373 | walk_wild_file (s, f, callback, data); | |
4dec4d4e RH |
374 | } |
375 | } | |
376 | else | |
377 | { | |
e50d8076 NC |
378 | lang_input_statement_type *f; |
379 | ||
4dec4d4e | 380 | /* Perform the iteration over a single file. */ |
b6bf44ba | 381 | f = lookup_name (file_spec); |
6770ec8c | 382 | if (f) |
b6bf44ba | 383 | walk_wild_file (s, f, callback, data); |
4dec4d4e | 384 | } |
5f992e62 AM |
385 | } |
386 | ||
08da4cac KH |
387 | /* lang_for_each_statement walks the parse tree and calls the provided |
388 | function for each node. */ | |
252b5132 RH |
389 | |
390 | static void | |
391 | lang_for_each_statement_worker (func, s) | |
392 | void (*func) PARAMS ((lang_statement_union_type *)); | |
393 | lang_statement_union_type *s; | |
394 | { | |
bba1a0c0 | 395 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
396 | { |
397 | func (s); | |
398 | ||
399 | switch (s->header.type) | |
400 | { | |
401 | case lang_constructors_statement_enum: | |
402 | lang_for_each_statement_worker (func, constructor_list.head); | |
403 | break; | |
404 | case lang_output_section_statement_enum: | |
405 | lang_for_each_statement_worker | |
406 | (func, | |
407 | s->output_section_statement.children.head); | |
408 | break; | |
409 | case lang_wild_statement_enum: | |
410 | lang_for_each_statement_worker | |
411 | (func, | |
412 | s->wild_statement.children.head); | |
413 | break; | |
414 | case lang_group_statement_enum: | |
415 | lang_for_each_statement_worker (func, | |
416 | s->group_statement.children.head); | |
417 | break; | |
418 | case lang_data_statement_enum: | |
419 | case lang_reloc_statement_enum: | |
420 | case lang_object_symbols_statement_enum: | |
421 | case lang_output_statement_enum: | |
422 | case lang_target_statement_enum: | |
423 | case lang_input_section_enum: | |
424 | case lang_input_statement_enum: | |
425 | case lang_assignment_statement_enum: | |
426 | case lang_padding_statement_enum: | |
427 | case lang_address_statement_enum: | |
428 | case lang_fill_statement_enum: | |
429 | break; | |
430 | default: | |
431 | FAIL (); | |
432 | break; | |
433 | } | |
434 | } | |
435 | } | |
436 | ||
437 | void | |
438 | lang_for_each_statement (func) | |
439 | void (*func) PARAMS ((lang_statement_union_type *)); | |
440 | { | |
08da4cac | 441 | lang_for_each_statement_worker (func, statement_list.head); |
252b5132 RH |
442 | } |
443 | ||
444 | /*----------------------------------------------------------------------*/ | |
08da4cac | 445 | |
252b5132 RH |
446 | void |
447 | lang_list_init (list) | |
448 | lang_statement_list_type *list; | |
449 | { | |
450 | list->head = (lang_statement_union_type *) NULL; | |
451 | list->tail = &list->head; | |
452 | } | |
453 | ||
08da4cac | 454 | /* Build a new statement node for the parse tree. */ |
252b5132 | 455 | |
08da4cac | 456 | static lang_statement_union_type * |
252b5132 RH |
457 | new_statement (type, size, list) |
458 | enum statement_enum type; | |
459 | size_t size; | |
08da4cac | 460 | lang_statement_list_type *list; |
252b5132 RH |
461 | { |
462 | lang_statement_union_type *new = (lang_statement_union_type *) | |
463 | stat_alloc (size); | |
464 | ||
465 | new->header.type = type; | |
466 | new->header.next = (lang_statement_union_type *) NULL; | |
467 | lang_statement_append (list, new, &new->header.next); | |
468 | return new; | |
469 | } | |
470 | ||
08da4cac KH |
471 | /* Build a new input file node for the language. There are several |
472 | ways in which we treat an input file, eg, we only look at symbols, | |
473 | or prefix it with a -l etc. | |
252b5132 | 474 | |
08da4cac KH |
475 | We can be supplied with requests for input files more than once; |
476 | they may, for example be split over serveral lines like foo.o(.text) | |
d1778b88 | 477 | foo.o(.data) etc, so when asked for a file we check that we haven't |
08da4cac | 478 | got it already so we don't duplicate the bfd. */ |
252b5132 | 479 | |
252b5132 RH |
480 | static lang_input_statement_type * |
481 | new_afile (name, file_type, target, add_to_list) | |
5f992e62 | 482 | const char *name; |
252b5132 | 483 | lang_input_file_enum_type file_type; |
5f992e62 | 484 | const char *target; |
252b5132 RH |
485 | boolean add_to_list; |
486 | { | |
487 | lang_input_statement_type *p; | |
488 | ||
489 | if (add_to_list) | |
490 | p = new_stat (lang_input_statement, stat_ptr); | |
491 | else | |
492 | { | |
493 | p = ((lang_input_statement_type *) | |
494 | stat_alloc (sizeof (lang_input_statement_type))); | |
495 | p->header.next = NULL; | |
496 | } | |
497 | ||
498 | lang_has_input_file = true; | |
499 | p->target = target; | |
500 | switch (file_type) | |
501 | { | |
502 | case lang_input_file_is_symbols_only_enum: | |
503 | p->filename = name; | |
504 | p->is_archive = false; | |
505 | p->real = true; | |
506 | p->local_sym_name = name; | |
507 | p->just_syms_flag = true; | |
508 | p->search_dirs_flag = false; | |
509 | break; | |
510 | case lang_input_file_is_fake_enum: | |
511 | p->filename = name; | |
512 | p->is_archive = false; | |
513 | p->real = false; | |
514 | p->local_sym_name = name; | |
515 | p->just_syms_flag = false; | |
516 | p->search_dirs_flag = false; | |
517 | break; | |
518 | case lang_input_file_is_l_enum: | |
519 | p->is_archive = true; | |
520 | p->filename = name; | |
521 | p->real = true; | |
522 | p->local_sym_name = concat ("-l", name, (const char *) NULL); | |
523 | p->just_syms_flag = false; | |
524 | p->search_dirs_flag = true; | |
525 | break; | |
526 | case lang_input_file_is_marker_enum: | |
527 | p->filename = name; | |
528 | p->is_archive = false; | |
529 | p->real = false; | |
530 | p->local_sym_name = name; | |
531 | p->just_syms_flag = false; | |
532 | p->search_dirs_flag = true; | |
533 | break; | |
534 | case lang_input_file_is_search_file_enum: | |
535 | p->filename = name; | |
536 | p->is_archive = false; | |
537 | p->real = true; | |
538 | p->local_sym_name = name; | |
539 | p->just_syms_flag = false; | |
540 | p->search_dirs_flag = true; | |
541 | break; | |
542 | case lang_input_file_is_file_enum: | |
543 | p->filename = name; | |
544 | p->is_archive = false; | |
545 | p->real = true; | |
546 | p->local_sym_name = name; | |
547 | p->just_syms_flag = false; | |
548 | p->search_dirs_flag = false; | |
549 | break; | |
550 | default: | |
551 | FAIL (); | |
552 | } | |
553 | p->the_bfd = (bfd *) NULL; | |
554 | p->asymbols = (asymbol **) NULL; | |
555 | p->next_real_file = (lang_statement_union_type *) NULL; | |
556 | p->next = (lang_statement_union_type *) NULL; | |
557 | p->symbol_count = 0; | |
558 | p->dynamic = config.dynamic_link; | |
559 | p->whole_archive = whole_archive; | |
560 | p->loaded = false; | |
561 | lang_statement_append (&input_file_chain, | |
562 | (lang_statement_union_type *) p, | |
563 | &p->next_real_file); | |
564 | return p; | |
565 | } | |
566 | ||
567 | lang_input_statement_type * | |
568 | lang_add_input_file (name, file_type, target) | |
5f992e62 | 569 | const char *name; |
252b5132 | 570 | lang_input_file_enum_type file_type; |
5f992e62 | 571 | const char *target; |
252b5132 RH |
572 | { |
573 | lang_has_input_file = true; | |
574 | return new_afile (name, file_type, target, true); | |
575 | } | |
576 | ||
08da4cac KH |
577 | /* Build enough state so that the parser can build its tree. */ |
578 | ||
252b5132 RH |
579 | void |
580 | lang_init () | |
581 | { | |
582 | obstack_begin (&stat_obstack, 1000); | |
583 | ||
584 | stat_ptr = &statement_list; | |
585 | ||
586 | lang_list_init (stat_ptr); | |
587 | ||
588 | lang_list_init (&input_file_chain); | |
589 | lang_list_init (&lang_output_section_statement); | |
590 | lang_list_init (&file_chain); | |
591 | first_file = lang_add_input_file ((char *) NULL, | |
592 | lang_input_file_is_marker_enum, | |
593 | (char *) NULL); | |
08da4cac KH |
594 | abs_output_section = |
595 | lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME); | |
252b5132 RH |
596 | |
597 | abs_output_section->bfd_section = bfd_abs_section_ptr; | |
598 | ||
599 | } | |
600 | ||
601 | /*---------------------------------------------------------------------- | |
08da4cac KH |
602 | A region is an area of memory declared with the |
603 | MEMORY { name:org=exp, len=exp ... } | |
604 | syntax. | |
252b5132 | 605 | |
08da4cac | 606 | We maintain a list of all the regions here. |
252b5132 | 607 | |
08da4cac KH |
608 | If no regions are specified in the script, then the default is used |
609 | which is created when looked up to be the entire data space. */ | |
252b5132 RH |
610 | |
611 | static lang_memory_region_type *lang_memory_region_list; | |
612 | static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list; | |
613 | ||
614 | lang_memory_region_type * | |
615 | lang_memory_region_lookup (name) | |
5f992e62 | 616 | const char *const name; |
252b5132 RH |
617 | { |
618 | lang_memory_region_type *p; | |
619 | ||
9f88b410 RS |
620 | /* NAME is NULL for LMA memspecs if no region was specified. */ |
621 | if (name == NULL) | |
622 | return NULL; | |
623 | ||
252b5132 RH |
624 | for (p = lang_memory_region_list; |
625 | p != (lang_memory_region_type *) NULL; | |
626 | p = p->next) | |
627 | { | |
628 | if (strcmp (p->name, name) == 0) | |
629 | { | |
630 | return p; | |
631 | } | |
632 | } | |
633 | ||
634 | #if 0 | |
635 | /* This code used to always use the first region in the list as the | |
636 | default region. I changed it to instead use a region | |
637 | encompassing all of memory as the default region. This permits | |
638 | NOLOAD sections to work reasonably without requiring a region. | |
639 | People should specify what region they mean, if they really want | |
640 | a region. */ | |
641 | if (strcmp (name, "*default*") == 0) | |
642 | { | |
643 | if (lang_memory_region_list != (lang_memory_region_type *) NULL) | |
644 | { | |
645 | return lang_memory_region_list; | |
646 | } | |
647 | } | |
648 | #endif | |
649 | ||
650 | { | |
651 | lang_memory_region_type *new = | |
652 | (lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type)); | |
653 | ||
d1b2b2dc | 654 | new->name = xstrdup (name); |
252b5132 RH |
655 | new->next = (lang_memory_region_type *) NULL; |
656 | ||
657 | *lang_memory_region_list_tail = new; | |
658 | lang_memory_region_list_tail = &new->next; | |
659 | new->origin = 0; | |
660 | new->flags = 0; | |
661 | new->not_flags = 0; | |
08da4cac | 662 | new->length = ~(bfd_size_type) 0; |
252b5132 RH |
663 | new->current = 0; |
664 | new->had_full_message = false; | |
665 | ||
666 | return new; | |
667 | } | |
668 | } | |
669 | ||
5f992e62 | 670 | static lang_memory_region_type * |
252b5132 RH |
671 | lang_memory_default (section) |
672 | asection *section; | |
673 | { | |
674 | lang_memory_region_type *p; | |
675 | ||
676 | flagword sec_flags = section->flags; | |
677 | ||
678 | /* Override SEC_DATA to mean a writable section. */ | |
679 | if ((sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE)) == SEC_ALLOC) | |
680 | sec_flags |= SEC_DATA; | |
681 | ||
682 | for (p = lang_memory_region_list; | |
683 | p != (lang_memory_region_type *) NULL; | |
684 | p = p->next) | |
685 | { | |
686 | if ((p->flags & sec_flags) != 0 | |
687 | && (p->not_flags & sec_flags) == 0) | |
688 | { | |
689 | return p; | |
690 | } | |
691 | } | |
692 | return lang_memory_region_lookup ("*default*"); | |
693 | } | |
694 | ||
695 | lang_output_section_statement_type * | |
696 | lang_output_section_find (name) | |
5f992e62 | 697 | const char *const name; |
252b5132 RH |
698 | { |
699 | lang_statement_union_type *u; | |
700 | lang_output_section_statement_type *lookup; | |
701 | ||
702 | for (u = lang_output_section_statement.head; | |
703 | u != (lang_statement_union_type *) NULL; | |
704 | u = lookup->next) | |
705 | { | |
706 | lookup = &u->output_section_statement; | |
707 | if (strcmp (name, lookup->name) == 0) | |
708 | { | |
709 | return lookup; | |
710 | } | |
711 | } | |
712 | return (lang_output_section_statement_type *) NULL; | |
713 | } | |
714 | ||
715 | lang_output_section_statement_type * | |
716 | lang_output_section_statement_lookup (name) | |
5f992e62 | 717 | const char *const name; |
252b5132 RH |
718 | { |
719 | lang_output_section_statement_type *lookup; | |
720 | ||
721 | lookup = lang_output_section_find (name); | |
722 | if (lookup == (lang_output_section_statement_type *) NULL) | |
723 | { | |
724 | ||
725 | lookup = (lang_output_section_statement_type *) | |
726 | new_stat (lang_output_section_statement, stat_ptr); | |
727 | lookup->region = (lang_memory_region_type *) NULL; | |
562d3460 | 728 | lookup->lma_region = (lang_memory_region_type *) NULL; |
2c382fb6 | 729 | lookup->fill = (fill_type *) 0; |
252b5132 RH |
730 | lookup->block_value = 1; |
731 | lookup->name = name; | |
732 | ||
733 | lookup->next = (lang_statement_union_type *) NULL; | |
734 | lookup->bfd_section = (asection *) NULL; | |
735 | lookup->processed = false; | |
736 | lookup->sectype = normal_section; | |
737 | lookup->addr_tree = (etree_type *) NULL; | |
738 | lang_list_init (&lookup->children); | |
739 | ||
5f992e62 | 740 | lookup->memspec = (const char *) NULL; |
252b5132 RH |
741 | lookup->flags = 0; |
742 | lookup->subsection_alignment = -1; | |
743 | lookup->section_alignment = -1; | |
744 | lookup->load_base = (union etree_union *) NULL; | |
9f88b410 | 745 | lookup->update_dot_tree = NULL; |
252b5132 RH |
746 | lookup->phdrs = NULL; |
747 | ||
748 | lang_statement_append (&lang_output_section_statement, | |
749 | (lang_statement_union_type *) lookup, | |
750 | &lookup->next); | |
751 | } | |
752 | return lookup; | |
753 | } | |
754 | ||
755 | static void | |
756 | lang_map_flags (flag) | |
757 | flagword flag; | |
758 | { | |
759 | if (flag & SEC_ALLOC) | |
760 | minfo ("a"); | |
761 | ||
762 | if (flag & SEC_CODE) | |
763 | minfo ("x"); | |
764 | ||
765 | if (flag & SEC_READONLY) | |
766 | minfo ("r"); | |
767 | ||
768 | if (flag & SEC_DATA) | |
769 | minfo ("w"); | |
770 | ||
771 | if (flag & SEC_LOAD) | |
772 | minfo ("l"); | |
773 | } | |
774 | ||
775 | void | |
776 | lang_map () | |
777 | { | |
778 | lang_memory_region_type *m; | |
779 | ||
780 | minfo (_("\nMemory Configuration\n\n")); | |
781 | fprintf (config.map_file, "%-16s %-18s %-18s %s\n", | |
782 | _("Name"), _("Origin"), _("Length"), _("Attributes")); | |
783 | ||
784 | for (m = lang_memory_region_list; | |
785 | m != (lang_memory_region_type *) NULL; | |
786 | m = m->next) | |
787 | { | |
788 | char buf[100]; | |
789 | int len; | |
790 | ||
791 | fprintf (config.map_file, "%-16s ", m->name); | |
792 | ||
793 | sprintf_vma (buf, m->origin); | |
794 | minfo ("0x%s ", buf); | |
795 | len = strlen (buf); | |
796 | while (len < 16) | |
797 | { | |
798 | print_space (); | |
799 | ++len; | |
800 | } | |
801 | ||
802 | minfo ("0x%V", m->length); | |
803 | if (m->flags || m->not_flags) | |
804 | { | |
805 | #ifndef BFD64 | |
806 | minfo (" "); | |
807 | #endif | |
808 | if (m->flags) | |
809 | { | |
810 | print_space (); | |
811 | lang_map_flags (m->flags); | |
812 | } | |
813 | ||
814 | if (m->not_flags) | |
815 | { | |
816 | minfo (" !"); | |
817 | lang_map_flags (m->not_flags); | |
818 | } | |
819 | } | |
820 | ||
821 | print_nl (); | |
822 | } | |
823 | ||
824 | fprintf (config.map_file, _("\nLinker script and memory map\n\n")); | |
825 | ||
826 | print_statements (); | |
827 | } | |
828 | ||
829 | /* Initialize an output section. */ | |
830 | ||
831 | static void | |
832 | init_os (s) | |
833 | lang_output_section_statement_type *s; | |
834 | { | |
835 | section_userdata_type *new; | |
836 | ||
837 | if (s->bfd_section != NULL) | |
838 | return; | |
839 | ||
840 | if (strcmp (s->name, DISCARD_SECTION_NAME) == 0) | |
6f9efd97 | 841 | einfo (_("%P%F: Illegal use of `%s' section\n"), DISCARD_SECTION_NAME); |
252b5132 RH |
842 | |
843 | new = ((section_userdata_type *) | |
844 | stat_alloc (sizeof (section_userdata_type))); | |
845 | ||
846 | s->bfd_section = bfd_get_section_by_name (output_bfd, s->name); | |
847 | if (s->bfd_section == (asection *) NULL) | |
848 | s->bfd_section = bfd_make_section (output_bfd, s->name); | |
849 | if (s->bfd_section == (asection *) NULL) | |
850 | { | |
851 | einfo (_("%P%F: output format %s cannot represent section called %s\n"), | |
852 | output_bfd->xvec->name, s->name); | |
853 | } | |
854 | s->bfd_section->output_section = s->bfd_section; | |
855 | ||
08da4cac KH |
856 | /* We initialize an output sections output offset to minus its own |
857 | vma to allow us to output a section through itself. */ | |
252b5132 RH |
858 | s->bfd_section->output_offset = 0; |
859 | get_userdata (s->bfd_section) = (PTR) new; | |
860 | ||
861 | /* If there is a base address, make sure that any sections it might | |
862 | mention are initialized. */ | |
863 | if (s->addr_tree != NULL) | |
864 | exp_init_os (s->addr_tree); | |
865 | } | |
866 | ||
867 | /* Make sure that all output sections mentioned in an expression are | |
868 | initialized. */ | |
869 | ||
870 | static void | |
871 | exp_init_os (exp) | |
872 | etree_type *exp; | |
873 | { | |
874 | switch (exp->type.node_class) | |
875 | { | |
876 | case etree_assign: | |
877 | exp_init_os (exp->assign.src); | |
878 | break; | |
879 | ||
880 | case etree_binary: | |
881 | exp_init_os (exp->binary.lhs); | |
882 | exp_init_os (exp->binary.rhs); | |
883 | break; | |
884 | ||
885 | case etree_trinary: | |
886 | exp_init_os (exp->trinary.cond); | |
887 | exp_init_os (exp->trinary.lhs); | |
888 | exp_init_os (exp->trinary.rhs); | |
889 | break; | |
890 | ||
891 | case etree_unary: | |
892 | exp_init_os (exp->unary.child); | |
893 | break; | |
894 | ||
895 | case etree_name: | |
896 | switch (exp->type.node_code) | |
897 | { | |
898 | case ADDR: | |
899 | case LOADADDR: | |
900 | case SIZEOF: | |
901 | { | |
902 | lang_output_section_statement_type *os; | |
903 | ||
904 | os = lang_output_section_find (exp->name.name); | |
905 | if (os != NULL && os->bfd_section == NULL) | |
906 | init_os (os); | |
907 | } | |
908 | } | |
909 | break; | |
910 | ||
911 | default: | |
912 | break; | |
913 | } | |
914 | } | |
9503fd87 | 915 | \f |
252b5132 | 916 | /* Sections marked with the SEC_LINK_ONCE flag should only be linked |
9503fd87 ILT |
917 | once into the output. This routine checks each section, and |
918 | arrange to discard it if a section of the same name has already | |
bb8fe706 ILT |
919 | been linked. If the section has COMDAT information, then it uses |
920 | that to decide whether the section should be included. This code | |
921 | assumes that all relevant sections have the SEC_LINK_ONCE flag set; | |
9503fd87 ILT |
922 | that is, it does not depend solely upon the section name. |
923 | section_already_linked is called via bfd_map_over_sections. */ | |
924 | ||
925 | /* This is the shape of the elements inside the already_linked hash | |
926 | table. It maps a name onto a list of already_linked elements with | |
927 | the same name. It's possible to get more than one element in a | |
928 | list if the COMDAT sections have different names. */ | |
929 | ||
5f992e62 | 930 | struct already_linked_hash_entry |
9503fd87 ILT |
931 | { |
932 | struct bfd_hash_entry root; | |
933 | struct already_linked *entry; | |
934 | }; | |
935 | ||
5f992e62 | 936 | struct already_linked |
9503fd87 ILT |
937 | { |
938 | struct already_linked *next; | |
939 | asection *sec; | |
940 | }; | |
941 | ||
942 | /* The hash table. */ | |
943 | ||
944 | static struct bfd_hash_table already_linked_table; | |
252b5132 | 945 | |
252b5132 RH |
946 | static void |
947 | section_already_linked (abfd, sec, data) | |
948 | bfd *abfd; | |
949 | asection *sec; | |
950 | PTR data; | |
951 | { | |
952 | lang_input_statement_type *entry = (lang_input_statement_type *) data; | |
252b5132 RH |
953 | flagword flags; |
954 | const char *name; | |
9503fd87 ILT |
955 | struct already_linked *l; |
956 | struct already_linked_hash_entry *already_linked_list; | |
252b5132 RH |
957 | |
958 | /* If we are only reading symbols from this object, then we want to | |
959 | discard all sections. */ | |
960 | if (entry->just_syms_flag) | |
961 | { | |
c2c01aa7 | 962 | bfd_link_just_syms (sec, &link_info); |
252b5132 RH |
963 | return; |
964 | } | |
965 | ||
966 | flags = bfd_get_section_flags (abfd, sec); | |
967 | ||
968 | if ((flags & SEC_LINK_ONCE) == 0) | |
969 | return; | |
970 | ||
577a0623 | 971 | /* FIXME: When doing a relocatable link, we may have trouble |
e361c369 ILT |
972 | copying relocations in other sections that refer to local symbols |
973 | in the section being discarded. Those relocations will have to | |
974 | be converted somehow; as of this writing I'm not sure that any of | |
975 | the backends handle that correctly. | |
976 | ||
977 | It is tempting to instead not discard link once sections when | |
577a0623 | 978 | doing a relocatable link (technically, they should be discarded |
e361c369 ILT |
979 | whenever we are building constructors). However, that fails, |
980 | because the linker winds up combining all the link once sections | |
981 | into a single large link once section, which defeats the purpose | |
982 | of having link once sections in the first place. | |
983 | ||
577a0623 | 984 | Also, not merging link once sections in a relocatable link |
e361c369 ILT |
985 | causes trouble for MIPS ELF, which relies in link once semantics |
986 | to handle the .reginfo section correctly. */ | |
987 | ||
252b5132 RH |
988 | name = bfd_get_section_name (abfd, sec); |
989 | ||
5f992e62 | 990 | already_linked_list = |
9503fd87 ILT |
991 | ((struct already_linked_hash_entry *) |
992 | bfd_hash_lookup (&already_linked_table, name, true, false)); | |
993 | ||
08da4cac | 994 | for (l = already_linked_list->entry; l != NULL; l = l->next) |
252b5132 | 995 | { |
9503fd87 ILT |
996 | if (sec->comdat == NULL |
997 | || l->sec->comdat == NULL | |
998 | || strcmp (sec->comdat->name, l->sec->comdat->name) == 0) | |
252b5132 RH |
999 | { |
1000 | /* The section has already been linked. See if we should | |
1001 | issue a warning. */ | |
1002 | switch (flags & SEC_LINK_DUPLICATES) | |
1003 | { | |
1004 | default: | |
1005 | abort (); | |
1006 | ||
1007 | case SEC_LINK_DUPLICATES_DISCARD: | |
1008 | break; | |
1009 | ||
1010 | case SEC_LINK_DUPLICATES_ONE_ONLY: | |
bb8fe706 ILT |
1011 | if (sec->comdat == NULL) |
1012 | einfo (_("%P: %B: warning: ignoring duplicate section `%s'\n"), | |
1013 | abfd, name); | |
1014 | else | |
1015 | einfo (_("%P: %B: warning: ignoring duplicate `%s' section symbol `%s'\n"), | |
1016 | abfd, name, sec->comdat->name); | |
252b5132 RH |
1017 | break; |
1018 | ||
1019 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: | |
1020 | /* FIXME: We should really dig out the contents of both | |
1021 | sections and memcmp them. The COFF/PE spec says that | |
1022 | the Microsoft linker does not implement this | |
1023 | correctly, so I'm not going to bother doing it | |
1024 | either. */ | |
1025 | /* Fall through. */ | |
1026 | case SEC_LINK_DUPLICATES_SAME_SIZE: | |
1027 | if (bfd_section_size (abfd, sec) | |
1028 | != bfd_section_size (l->sec->owner, l->sec)) | |
1029 | einfo (_("%P: %B: warning: duplicate section `%s' has different size\n"), | |
1030 | abfd, name); | |
1031 | break; | |
1032 | } | |
1033 | ||
39dcfe18 AM |
1034 | /* Set the output_section field so that lang_add_section |
1035 | does not create a lang_input_section structure for this | |
862517b6 | 1036 | section. */ |
252b5132 RH |
1037 | sec->output_section = bfd_abs_section_ptr; |
1038 | ||
1039 | return; | |
1040 | } | |
1041 | } | |
1042 | ||
9503fd87 ILT |
1043 | /* This is the first section with this name. Record it. Allocate |
1044 | the memory from the same obstack as the hash table is kept in. */ | |
1045 | ||
5f992e62 | 1046 | l = ((struct already_linked *) |
9503fd87 | 1047 | bfd_hash_allocate (&already_linked_table, sizeof *l)); |
252b5132 | 1048 | |
252b5132 | 1049 | l->sec = sec; |
9503fd87 ILT |
1050 | l->next = already_linked_list->entry; |
1051 | already_linked_list->entry = l; | |
1052 | } | |
1053 | ||
1054 | /* Support routines for the hash table used by section_already_linked, | |
1055 | initialize the table, fill in an entry and remove the table. */ | |
1056 | ||
1057 | static struct bfd_hash_entry * | |
1058 | already_linked_newfunc (entry, table, string) | |
1059 | struct bfd_hash_entry *entry ATTRIBUTE_UNUSED; | |
1060 | struct bfd_hash_table *table; | |
1061 | const char *string ATTRIBUTE_UNUSED; | |
1062 | { | |
5f992e62 | 1063 | struct already_linked_hash_entry *ret = |
9503fd87 ILT |
1064 | bfd_hash_allocate (table, sizeof (struct already_linked_hash_entry)); |
1065 | ||
1066 | ret->entry = NULL; | |
1067 | ||
1068 | return (struct bfd_hash_entry *) ret; | |
1069 | } | |
1070 | ||
1071 | static void | |
1072 | already_linked_table_init () | |
1073 | { | |
1074 | if (! bfd_hash_table_init_n (&already_linked_table, | |
1075 | already_linked_newfunc, | |
1076 | 42)) | |
1077 | einfo (_("%P%F: Failed to create hash table\n")); | |
1078 | } | |
1079 | ||
1080 | static void | |
1081 | already_linked_table_free () | |
1082 | { | |
1083 | bfd_hash_table_free (&already_linked_table); | |
252b5132 RH |
1084 | } |
1085 | \f | |
1086 | /* The wild routines. | |
1087 | ||
1088 | These expand statements like *(.text) and foo.o to a list of | |
1089 | explicit actions, like foo.o(.text), bar.o(.text) and | |
1090 | foo.o(.text, .data). */ | |
1091 | ||
1092 | /* Return true if the PATTERN argument is a wildcard pattern. | |
1093 | Although backslashes are treated specially if a pattern contains | |
1094 | wildcards, we do not consider the mere presence of a backslash to | |
ca0c1d3e | 1095 | be enough to cause the pattern to be treated as a wildcard. |
252b5132 RH |
1096 | That lets us handle DOS filenames more naturally. */ |
1097 | ||
1098 | static boolean | |
1099 | wildcardp (pattern) | |
1100 | const char *pattern; | |
1101 | { | |
1102 | const char *s; | |
1103 | ||
1104 | for (s = pattern; *s != '\0'; ++s) | |
1105 | if (*s == '?' | |
1106 | || *s == '*' | |
1107 | || *s == '[') | |
1108 | return true; | |
1109 | return false; | |
1110 | } | |
1111 | ||
1112 | /* Add SECTION to the output section OUTPUT. Do this by creating a | |
1113 | lang_input_section statement which is placed at PTR. FILE is the | |
1114 | input file which holds SECTION. */ | |
1115 | ||
1116 | void | |
39dcfe18 | 1117 | lang_add_section (ptr, section, output, file) |
252b5132 RH |
1118 | lang_statement_list_type *ptr; |
1119 | asection *section; | |
1120 | lang_output_section_statement_type *output; | |
1121 | lang_input_statement_type *file; | |
1122 | { | |
1123 | flagword flags; | |
1124 | boolean discard; | |
1125 | ||
1126 | flags = bfd_get_section_flags (section->owner, section); | |
1127 | ||
1128 | discard = false; | |
1129 | ||
1130 | /* If we are doing a final link, discard sections marked with | |
1131 | SEC_EXCLUDE. */ | |
1132 | if (! link_info.relocateable | |
1133 | && (flags & SEC_EXCLUDE) != 0) | |
1134 | discard = true; | |
1135 | ||
1136 | /* Discard input sections which are assigned to a section named | |
1137 | DISCARD_SECTION_NAME. */ | |
1138 | if (strcmp (output->name, DISCARD_SECTION_NAME) == 0) | |
1139 | discard = true; | |
1140 | ||
1141 | /* Discard debugging sections if we are stripping debugging | |
1142 | information. */ | |
1143 | if ((link_info.strip == strip_debugger || link_info.strip == strip_all) | |
1144 | && (flags & SEC_DEBUGGING) != 0) | |
1145 | discard = true; | |
1146 | ||
1147 | if (discard) | |
1148 | { | |
1149 | if (section->output_section == NULL) | |
1150 | { | |
1151 | /* This prevents future calls from assigning this section. */ | |
1152 | section->output_section = bfd_abs_section_ptr; | |
1153 | } | |
1154 | return; | |
1155 | } | |
1156 | ||
1157 | if (section->output_section == NULL) | |
1158 | { | |
1159 | boolean first; | |
1160 | lang_input_section_type *new; | |
1161 | flagword flags; | |
1162 | ||
1163 | if (output->bfd_section == NULL) | |
d1778b88 AM |
1164 | init_os (output); |
1165 | ||
1166 | first = ! output->bfd_section->linker_has_input; | |
1167 | output->bfd_section->linker_has_input = 1; | |
252b5132 | 1168 | |
08da4cac | 1169 | /* Add a section reference to the list. */ |
252b5132 RH |
1170 | new = new_stat (lang_input_section, ptr); |
1171 | ||
1172 | new->section = section; | |
1173 | new->ifile = file; | |
1174 | section->output_section = output->bfd_section; | |
1175 | ||
1176 | flags = section->flags; | |
1177 | ||
1178 | /* We don't copy the SEC_NEVER_LOAD flag from an input section | |
1179 | to an output section, because we want to be able to include a | |
1180 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
1181 | section (I don't know why we want to do this, but we do). | |
1182 | build_link_order in ldwrite.c handles this case by turning | |
1183 | the embedded SEC_NEVER_LOAD section into a fill. */ | |
1184 | ||
1185 | flags &= ~ SEC_NEVER_LOAD; | |
1186 | ||
1187 | /* If final link, don't copy the SEC_LINK_ONCE flags, they've | |
1188 | already been processed. One reason to do this is that on pe | |
1189 | format targets, .text$foo sections go into .text and it's odd | |
1190 | to see .text with SEC_LINK_ONCE set. */ | |
1191 | ||
1192 | if (! link_info.relocateable) | |
1193 | flags &= ~ (SEC_LINK_ONCE | SEC_LINK_DUPLICATES); | |
1194 | ||
1195 | /* If this is not the first input section, and the SEC_READONLY | |
1196 | flag is not currently set, then don't set it just because the | |
1197 | input section has it set. */ | |
1198 | ||
1199 | if (! first && (section->output_section->flags & SEC_READONLY) == 0) | |
1200 | flags &= ~ SEC_READONLY; | |
1201 | ||
f5fa8ca2 JJ |
1202 | /* Keep SEC_MERGE and SEC_STRINGS only if they are the same. */ |
1203 | if (! first | |
1204 | && ((section->output_section->flags & (SEC_MERGE | SEC_STRINGS)) | |
1205 | != (flags & (SEC_MERGE | SEC_STRINGS)) | |
1206 | || ((flags & SEC_MERGE) | |
1207 | && section->output_section->entsize != section->entsize))) | |
1208 | { | |
1209 | section->output_section->flags &= ~ (SEC_MERGE | SEC_STRINGS); | |
1210 | flags &= ~ (SEC_MERGE | SEC_STRINGS); | |
1211 | } | |
1212 | ||
13ae64f3 JJ |
1213 | /* For now make .tbss normal section. */ |
1214 | if (flags & SEC_THREAD_LOCAL) | |
1215 | flags |= SEC_LOAD; | |
1216 | ||
252b5132 RH |
1217 | section->output_section->flags |= flags; |
1218 | ||
f5fa8ca2 JJ |
1219 | if (flags & SEC_MERGE) |
1220 | section->output_section->entsize = section->entsize; | |
1221 | ||
252b5132 RH |
1222 | /* If SEC_READONLY is not set in the input section, then clear |
1223 | it from the output section. */ | |
1224 | if ((section->flags & SEC_READONLY) == 0) | |
1225 | section->output_section->flags &= ~SEC_READONLY; | |
1226 | ||
1227 | switch (output->sectype) | |
1228 | { | |
1229 | case normal_section: | |
1230 | break; | |
1231 | case dsect_section: | |
1232 | case copy_section: | |
1233 | case info_section: | |
1234 | case overlay_section: | |
1235 | output->bfd_section->flags &= ~SEC_ALLOC; | |
1236 | break; | |
1237 | case noload_section: | |
1238 | output->bfd_section->flags &= ~SEC_LOAD; | |
1239 | output->bfd_section->flags |= SEC_NEVER_LOAD; | |
1240 | break; | |
1241 | } | |
1242 | ||
667f5177 ILT |
1243 | /* Copy over SEC_SMALL_DATA. */ |
1244 | if (section->flags & SEC_SMALL_DATA) | |
1245 | section->output_section->flags |= SEC_SMALL_DATA; | |
9e41f973 | 1246 | |
252b5132 RH |
1247 | if (section->alignment_power > output->bfd_section->alignment_power) |
1248 | output->bfd_section->alignment_power = section->alignment_power; | |
1249 | ||
1250 | /* If supplied an aligment, then force it. */ | |
1251 | if (output->section_alignment != -1) | |
1252 | output->bfd_section->alignment_power = output->section_alignment; | |
74459f0e TW |
1253 | |
1254 | if (section->flags & SEC_BLOCK) | |
08da4cac KH |
1255 | { |
1256 | section->output_section->flags |= SEC_BLOCK; | |
1257 | /* FIXME: This value should really be obtained from the bfd... */ | |
1258 | output->block_value = 128; | |
1259 | } | |
252b5132 RH |
1260 | } |
1261 | } | |
1262 | ||
1263 | /* Handle wildcard sorting. This returns the lang_input_section which | |
1264 | should follow the one we are going to create for SECTION and FILE, | |
1265 | based on the sorting requirements of WILD. It returns NULL if the | |
1266 | new section should just go at the end of the current list. */ | |
1267 | ||
1268 | static lang_statement_union_type * | |
b6bf44ba | 1269 | wild_sort (wild, sec, file, section) |
252b5132 | 1270 | lang_wild_statement_type *wild; |
b6bf44ba | 1271 | struct wildcard_list *sec; |
252b5132 RH |
1272 | lang_input_statement_type *file; |
1273 | asection *section; | |
1274 | { | |
1275 | const char *section_name; | |
1276 | lang_statement_union_type *l; | |
1277 | ||
b6bf44ba | 1278 | if (!wild->filenames_sorted && (sec == NULL || !sec->spec.sorted)) |
252b5132 RH |
1279 | return NULL; |
1280 | ||
1281 | section_name = bfd_get_section_name (file->the_bfd, section); | |
bba1a0c0 | 1282 | for (l = wild->children.head; l != NULL; l = l->header.next) |
252b5132 RH |
1283 | { |
1284 | lang_input_section_type *ls; | |
1285 | ||
1286 | if (l->header.type != lang_input_section_enum) | |
1287 | continue; | |
1288 | ls = &l->input_section; | |
1289 | ||
1290 | /* Sorting by filename takes precedence over sorting by section | |
1291 | name. */ | |
1292 | ||
1293 | if (wild->filenames_sorted) | |
1294 | { | |
1295 | const char *fn, *ln; | |
1296 | boolean fa, la; | |
1297 | int i; | |
1298 | ||
1299 | /* The PE support for the .idata section as generated by | |
1300 | dlltool assumes that files will be sorted by the name of | |
1301 | the archive and then the name of the file within the | |
1302 | archive. */ | |
1303 | ||
1304 | if (file->the_bfd != NULL | |
1305 | && bfd_my_archive (file->the_bfd) != NULL) | |
1306 | { | |
1307 | fn = bfd_get_filename (bfd_my_archive (file->the_bfd)); | |
1308 | fa = true; | |
1309 | } | |
1310 | else | |
1311 | { | |
1312 | fn = file->filename; | |
1313 | fa = false; | |
1314 | } | |
1315 | ||
1316 | if (ls->ifile->the_bfd != NULL | |
1317 | && bfd_my_archive (ls->ifile->the_bfd) != NULL) | |
1318 | { | |
1319 | ln = bfd_get_filename (bfd_my_archive (ls->ifile->the_bfd)); | |
1320 | la = true; | |
1321 | } | |
1322 | else | |
1323 | { | |
1324 | ln = ls->ifile->filename; | |
1325 | la = false; | |
1326 | } | |
1327 | ||
1328 | i = strcmp (fn, ln); | |
1329 | if (i > 0) | |
1330 | continue; | |
1331 | else if (i < 0) | |
1332 | break; | |
1333 | ||
1334 | if (fa || la) | |
1335 | { | |
1336 | if (fa) | |
1337 | fn = file->filename; | |
1338 | if (la) | |
1339 | ln = ls->ifile->filename; | |
1340 | ||
1341 | i = strcmp (fn, ln); | |
1342 | if (i > 0) | |
1343 | continue; | |
1344 | else if (i < 0) | |
1345 | break; | |
1346 | } | |
1347 | } | |
1348 | ||
1349 | /* Here either the files are not sorted by name, or we are | |
1350 | looking at the sections for this file. */ | |
1351 | ||
b6bf44ba | 1352 | if (sec != NULL && sec->spec.sorted) |
252b5132 RH |
1353 | { |
1354 | if (strcmp (section_name, | |
1355 | bfd_get_section_name (ls->ifile->the_bfd, | |
1356 | ls->section)) | |
1357 | < 0) | |
1358 | break; | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | return l; | |
1363 | } | |
1364 | ||
1365 | /* Expand a wild statement for a particular FILE. SECTION may be | |
1366 | NULL, in which case it is a wild card. */ | |
1367 | ||
1368 | static void | |
b6bf44ba | 1369 | output_section_callback (ptr, sec, section, file, output) |
252b5132 | 1370 | lang_wild_statement_type *ptr; |
b6bf44ba | 1371 | struct wildcard_list *sec; |
4dec4d4e | 1372 | asection *section; |
252b5132 | 1373 | lang_input_statement_type *file; |
5f992e62 | 1374 | PTR output; |
4dec4d4e RH |
1375 | { |
1376 | lang_statement_union_type *before; | |
5f992e62 | 1377 | |
b6bf44ba AM |
1378 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
1379 | if (unique_section_p (bfd_get_section_name (file->the_bfd, section))) | |
1380 | return; | |
1381 | ||
4dec4d4e RH |
1382 | /* If the wild pattern was marked KEEP, the member sections |
1383 | should be as well. */ | |
1384 | if (ptr->keep_sections) | |
1385 | section->flags |= SEC_KEEP; | |
5f992e62 | 1386 | |
b6bf44ba | 1387 | before = wild_sort (ptr, sec, file, section); |
5f992e62 | 1388 | |
4dec4d4e RH |
1389 | /* Here BEFORE points to the lang_input_section which |
1390 | should follow the one we are about to add. If BEFORE | |
1391 | is NULL, then the section should just go at the end | |
1392 | of the current list. */ | |
5f992e62 | 1393 | |
4dec4d4e | 1394 | if (before == NULL) |
39dcfe18 AM |
1395 | lang_add_section (&ptr->children, section, |
1396 | (lang_output_section_statement_type *) output, | |
1397 | file); | |
4dec4d4e | 1398 | else |
252b5132 | 1399 | { |
4dec4d4e RH |
1400 | lang_statement_list_type list; |
1401 | lang_statement_union_type **pp; | |
5f992e62 | 1402 | |
4dec4d4e | 1403 | lang_list_init (&list); |
39dcfe18 AM |
1404 | lang_add_section (&list, section, |
1405 | (lang_output_section_statement_type *) output, | |
1406 | file); | |
5f992e62 | 1407 | |
4dec4d4e RH |
1408 | /* If we are discarding the section, LIST.HEAD will |
1409 | be NULL. */ | |
1410 | if (list.head != NULL) | |
252b5132 | 1411 | { |
bba1a0c0 | 1412 | ASSERT (list.head->header.next == NULL); |
5f992e62 | 1413 | |
4dec4d4e RH |
1414 | for (pp = &ptr->children.head; |
1415 | *pp != before; | |
bba1a0c0 | 1416 | pp = &(*pp)->header.next) |
4dec4d4e | 1417 | ASSERT (*pp != NULL); |
5f992e62 | 1418 | |
bba1a0c0 | 1419 | list.head->header.next = *pp; |
4dec4d4e | 1420 | *pp = list.head; |
252b5132 RH |
1421 | } |
1422 | } | |
1423 | } | |
1424 | ||
1425 | /* This is passed a file name which must have been seen already and | |
1426 | added to the statement tree. We will see if it has been opened | |
1427 | already and had its symbols read. If not then we'll read it. */ | |
1428 | ||
1429 | static lang_input_statement_type * | |
1430 | lookup_name (name) | |
1431 | const char *name; | |
1432 | { | |
1433 | lang_input_statement_type *search; | |
1434 | ||
1435 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
1436 | search != (lang_input_statement_type *) NULL; | |
1437 | search = (lang_input_statement_type *) search->next_real_file) | |
1438 | { | |
1439 | if (search->filename == (char *) NULL && name == (char *) NULL) | |
1440 | return search; | |
1441 | if (search->filename != (char *) NULL | |
1442 | && name != (char *) NULL | |
1443 | && strcmp (search->filename, name) == 0) | |
1444 | break; | |
1445 | } | |
1446 | ||
1447 | if (search == (lang_input_statement_type *) NULL) | |
1448 | search = new_afile (name, lang_input_file_is_file_enum, default_target, | |
1449 | false); | |
1450 | ||
1451 | /* If we have already added this file, or this file is not real | |
1452 | (FIXME: can that ever actually happen?) or the name is NULL | |
1453 | (FIXME: can that ever actually happen?) don't add this file. */ | |
1454 | if (search->loaded | |
1455 | || ! search->real | |
1456 | || search->filename == (const char *) NULL) | |
1457 | return search; | |
1458 | ||
6770ec8c NC |
1459 | if (! load_symbols (search, (lang_statement_list_type *) NULL)) |
1460 | return NULL; | |
252b5132 RH |
1461 | |
1462 | return search; | |
1463 | } | |
1464 | ||
1465 | /* Get the symbols for an input file. */ | |
1466 | ||
6770ec8c | 1467 | static boolean |
252b5132 RH |
1468 | load_symbols (entry, place) |
1469 | lang_input_statement_type *entry; | |
1470 | lang_statement_list_type *place; | |
1471 | { | |
1472 | char **matching; | |
1473 | ||
1474 | if (entry->loaded) | |
6770ec8c | 1475 | return true; |
252b5132 RH |
1476 | |
1477 | ldfile_open_file (entry); | |
1478 | ||
1479 | if (! bfd_check_format (entry->the_bfd, bfd_archive) | |
1480 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
1481 | { | |
1482 | bfd_error_type err; | |
1483 | lang_statement_list_type *hold; | |
6770ec8c | 1484 | boolean bad_load = true; |
b7a26f91 | 1485 | |
252b5132 | 1486 | err = bfd_get_error (); |
884fb58e NC |
1487 | |
1488 | /* See if the emulation has some special knowledge. */ | |
1489 | if (ldemul_unrecognized_file (entry)) | |
6770ec8c | 1490 | return true; |
884fb58e | 1491 | |
252b5132 RH |
1492 | if (err == bfd_error_file_ambiguously_recognized) |
1493 | { | |
1494 | char **p; | |
1495 | ||
1496 | einfo (_("%B: file not recognized: %E\n"), entry->the_bfd); | |
1497 | einfo (_("%B: matching formats:"), entry->the_bfd); | |
1498 | for (p = matching; *p != NULL; p++) | |
1499 | einfo (" %s", *p); | |
1500 | einfo ("%F\n"); | |
1501 | } | |
1502 | else if (err != bfd_error_file_not_recognized | |
1503 | || place == NULL) | |
6770ec8c NC |
1504 | einfo (_("%F%B: file not recognized: %E\n"), entry->the_bfd); |
1505 | else | |
1506 | bad_load = false; | |
b7a26f91 | 1507 | |
252b5132 RH |
1508 | bfd_close (entry->the_bfd); |
1509 | entry->the_bfd = NULL; | |
1510 | ||
252b5132 | 1511 | /* Try to interpret the file as a linker script. */ |
252b5132 RH |
1512 | ldfile_open_command_file (entry->filename); |
1513 | ||
1514 | hold = stat_ptr; | |
1515 | stat_ptr = place; | |
1516 | ||
1517 | ldfile_assumed_script = true; | |
1518 | parser_input = input_script; | |
1519 | yyparse (); | |
1520 | ldfile_assumed_script = false; | |
1521 | ||
1522 | stat_ptr = hold; | |
1523 | ||
6770ec8c | 1524 | return ! bad_load; |
252b5132 RH |
1525 | } |
1526 | ||
1527 | if (ldemul_recognized_file (entry)) | |
6770ec8c | 1528 | return true; |
252b5132 RH |
1529 | |
1530 | /* We don't call ldlang_add_file for an archive. Instead, the | |
1531 | add_symbols entry point will call ldlang_add_file, via the | |
1532 | add_archive_element callback, for each element of the archive | |
1533 | which is used. */ | |
1534 | switch (bfd_get_format (entry->the_bfd)) | |
1535 | { | |
1536 | default: | |
1537 | break; | |
1538 | ||
1539 | case bfd_object: | |
1540 | ldlang_add_file (entry); | |
1541 | if (trace_files || trace_file_tries) | |
1542 | info_msg ("%I\n", entry); | |
1543 | break; | |
1544 | ||
1545 | case bfd_archive: | |
1546 | if (entry->whole_archive) | |
1547 | { | |
b7a26f91 | 1548 | bfd *member = NULL; |
6770ec8c NC |
1549 | boolean loaded = true; |
1550 | ||
1551 | for (;;) | |
252b5132 | 1552 | { |
6770ec8c NC |
1553 | member = bfd_openr_next_archived_file (entry->the_bfd, member); |
1554 | ||
1555 | if (member == NULL) | |
1556 | break; | |
b7a26f91 | 1557 | |
252b5132 | 1558 | if (! bfd_check_format (member, bfd_object)) |
6770ec8c NC |
1559 | { |
1560 | einfo (_("%F%B: member %B in archive is not an object\n"), | |
1561 | entry->the_bfd, member); | |
1562 | loaded = false; | |
1563 | } | |
1564 | ||
252b5132 RH |
1565 | if (! ((*link_info.callbacks->add_archive_element) |
1566 | (&link_info, member, "--whole-archive"))) | |
1567 | abort (); | |
6770ec8c | 1568 | |
252b5132 | 1569 | if (! bfd_link_add_symbols (member, &link_info)) |
6770ec8c NC |
1570 | { |
1571 | einfo (_("%F%B: could not read symbols: %E\n"), member); | |
1572 | loaded = false; | |
1573 | } | |
252b5132 RH |
1574 | } |
1575 | ||
6770ec8c NC |
1576 | entry->loaded = loaded; |
1577 | return loaded; | |
252b5132 | 1578 | } |
6770ec8c | 1579 | break; |
252b5132 RH |
1580 | } |
1581 | ||
6770ec8c NC |
1582 | if (bfd_link_add_symbols (entry->the_bfd, &link_info)) |
1583 | entry->loaded = true; | |
1584 | else | |
252b5132 RH |
1585 | einfo (_("%F%B: could not read symbols: %E\n"), entry->the_bfd); |
1586 | ||
6770ec8c | 1587 | return entry->loaded; |
252b5132 RH |
1588 | } |
1589 | ||
b6bf44ba AM |
1590 | /* Handle a wild statement. S->FILENAME or S->SECTION_LIST or both |
1591 | may be NULL, indicating that it is a wildcard. Separate | |
1592 | lang_input_section statements are created for each part of the | |
1593 | expansion; they are added after the wild statement S. OUTPUT is | |
1594 | the output section. */ | |
252b5132 RH |
1595 | |
1596 | static void | |
b6bf44ba | 1597 | wild (s, target, output) |
252b5132 | 1598 | lang_wild_statement_type *s; |
87f2a346 | 1599 | const char *target ATTRIBUTE_UNUSED; |
252b5132 RH |
1600 | lang_output_section_statement_type *output; |
1601 | { | |
b6bf44ba | 1602 | struct wildcard_list *sec; |
252b5132 | 1603 | |
b6bf44ba AM |
1604 | walk_wild (s, output_section_callback, (PTR) output); |
1605 | ||
1606 | for (sec = s->section_list; sec != NULL; sec = sec->next) | |
252b5132 | 1607 | { |
b6bf44ba AM |
1608 | if (default_common_section != NULL) |
1609 | break; | |
1610 | if (sec->spec.name != NULL && strcmp (sec->spec.name, "COMMON") == 0) | |
1611 | { | |
1612 | /* Remember the section that common is going to in case we | |
b7a26f91 | 1613 | later get something which doesn't know where to put it. */ |
b6bf44ba AM |
1614 | default_common_section = output; |
1615 | } | |
252b5132 RH |
1616 | } |
1617 | } | |
1618 | ||
e50d8076 | 1619 | /* Return true iff target is the sought target. */ |
08da4cac | 1620 | |
e50d8076 NC |
1621 | static int |
1622 | get_target (target, data) | |
08da4cac | 1623 | const bfd_target *target; |
5f992e62 | 1624 | PTR data; |
e50d8076 | 1625 | { |
08da4cac | 1626 | const char *sought = (const char *) data; |
5f992e62 | 1627 | |
e50d8076 NC |
1628 | return strcmp (target->name, sought) == 0; |
1629 | } | |
1630 | ||
1631 | /* Like strcpy() but convert to lower case as well. */ | |
08da4cac | 1632 | |
e50d8076 NC |
1633 | static void |
1634 | stricpy (dest, src) | |
08da4cac KH |
1635 | char *dest; |
1636 | char *src; | |
e50d8076 NC |
1637 | { |
1638 | char c; | |
5f992e62 | 1639 | |
08da4cac | 1640 | while ((c = *src++) != 0) |
3882b010 | 1641 | *dest++ = TOLOWER (c); |
e50d8076 | 1642 | |
08da4cac | 1643 | *dest = 0; |
e50d8076 NC |
1644 | } |
1645 | ||
1646 | /* Remove the first occurance of needle (if any) in haystack | |
1647 | from haystack. */ | |
08da4cac | 1648 | |
e50d8076 NC |
1649 | static void |
1650 | strcut (haystack, needle) | |
08da4cac KH |
1651 | char *haystack; |
1652 | char *needle; | |
e50d8076 NC |
1653 | { |
1654 | haystack = strstr (haystack, needle); | |
5f992e62 | 1655 | |
e50d8076 NC |
1656 | if (haystack) |
1657 | { | |
08da4cac | 1658 | char *src; |
e50d8076 | 1659 | |
08da4cac KH |
1660 | for (src = haystack + strlen (needle); *src;) |
1661 | *haystack++ = *src++; | |
5f992e62 | 1662 | |
08da4cac | 1663 | *haystack = 0; |
e50d8076 NC |
1664 | } |
1665 | } | |
1666 | ||
1667 | /* Compare two target format name strings. | |
1668 | Return a value indicating how "similar" they are. */ | |
08da4cac | 1669 | |
e50d8076 NC |
1670 | static int |
1671 | name_compare (first, second) | |
08da4cac KH |
1672 | char *first; |
1673 | char *second; | |
e50d8076 | 1674 | { |
08da4cac KH |
1675 | char *copy1; |
1676 | char *copy2; | |
1677 | int result; | |
5f992e62 | 1678 | |
e50d8076 NC |
1679 | copy1 = xmalloc (strlen (first) + 1); |
1680 | copy2 = xmalloc (strlen (second) + 1); | |
1681 | ||
1682 | /* Convert the names to lower case. */ | |
1683 | stricpy (copy1, first); | |
1684 | stricpy (copy2, second); | |
1685 | ||
1686 | /* Remove and endian strings from the name. */ | |
1687 | strcut (copy1, "big"); | |
1688 | strcut (copy1, "little"); | |
1689 | strcut (copy2, "big"); | |
1690 | strcut (copy2, "little"); | |
1691 | ||
1692 | /* Return a value based on how many characters match, | |
1693 | starting from the beginning. If both strings are | |
1694 | the same then return 10 * their length. */ | |
08da4cac KH |
1695 | for (result = 0; copy1[result] == copy2[result]; result++) |
1696 | if (copy1[result] == 0) | |
e50d8076 NC |
1697 | { |
1698 | result *= 10; | |
1699 | break; | |
1700 | } | |
5f992e62 | 1701 | |
e50d8076 NC |
1702 | free (copy1); |
1703 | free (copy2); | |
1704 | ||
1705 | return result; | |
1706 | } | |
1707 | ||
1708 | /* Set by closest_target_match() below. */ | |
08da4cac | 1709 | static const bfd_target *winner; |
e50d8076 NC |
1710 | |
1711 | /* Scan all the valid bfd targets looking for one that has the endianness | |
1712 | requirement that was specified on the command line, and is the nearest | |
1713 | match to the original output target. */ | |
08da4cac | 1714 | |
e50d8076 NC |
1715 | static int |
1716 | closest_target_match (target, data) | |
08da4cac | 1717 | const bfd_target *target; |
5f992e62 | 1718 | PTR data; |
e50d8076 | 1719 | { |
08da4cac | 1720 | const bfd_target *original = (const bfd_target *) data; |
5f992e62 | 1721 | |
08da4cac KH |
1722 | if (command_line.endian == ENDIAN_BIG |
1723 | && target->byteorder != BFD_ENDIAN_BIG) | |
e50d8076 | 1724 | return 0; |
5f992e62 | 1725 | |
08da4cac KH |
1726 | if (command_line.endian == ENDIAN_LITTLE |
1727 | && target->byteorder != BFD_ENDIAN_LITTLE) | |
e50d8076 NC |
1728 | return 0; |
1729 | ||
1730 | /* Must be the same flavour. */ | |
1731 | if (target->flavour != original->flavour) | |
1732 | return 0; | |
1733 | ||
1734 | /* If we have not found a potential winner yet, then record this one. */ | |
1735 | if (winner == NULL) | |
1736 | { | |
1737 | winner = target; | |
1738 | return 0; | |
1739 | } | |
1740 | ||
1741 | /* Oh dear, we now have two potential candidates for a successful match. | |
4de2d33d | 1742 | Compare their names and choose the better one. */ |
d1778b88 AM |
1743 | if (name_compare (target->name, original->name) |
1744 | > name_compare (winner->name, original->name)) | |
e50d8076 NC |
1745 | winner = target; |
1746 | ||
1747 | /* Keep on searching until wqe have checked them all. */ | |
1748 | return 0; | |
1749 | } | |
1750 | ||
1751 | /* Return the BFD target format of the first input file. */ | |
08da4cac | 1752 | |
e50d8076 NC |
1753 | static char * |
1754 | get_first_input_target () | |
1755 | { | |
08da4cac | 1756 | char *target = NULL; |
e50d8076 NC |
1757 | |
1758 | LANG_FOR_EACH_INPUT_STATEMENT (s) | |
1759 | { | |
1760 | if (s->header.type == lang_input_statement_enum | |
1761 | && s->real) | |
1762 | { | |
1763 | ldfile_open_file (s); | |
5f992e62 | 1764 | |
e50d8076 NC |
1765 | if (s->the_bfd != NULL |
1766 | && bfd_check_format (s->the_bfd, bfd_object)) | |
1767 | { | |
1768 | target = bfd_get_target (s->the_bfd); | |
5f992e62 | 1769 | |
e50d8076 NC |
1770 | if (target != NULL) |
1771 | break; | |
1772 | } | |
1773 | } | |
1774 | } | |
5f992e62 | 1775 | |
e50d8076 NC |
1776 | return target; |
1777 | } | |
1778 | ||
252b5132 RH |
1779 | /* Open the output file. */ |
1780 | ||
1781 | static bfd * | |
1782 | open_output (name) | |
08da4cac | 1783 | const char *name; |
252b5132 | 1784 | { |
08da4cac | 1785 | bfd *output; |
252b5132 | 1786 | |
08da4cac | 1787 | /* Has the user told us which output format to use? */ |
252b5132 RH |
1788 | if (output_target == (char *) NULL) |
1789 | { | |
08da4cac KH |
1790 | /* No - has the current target been set to something other than |
1791 | the default? */ | |
e50d8076 | 1792 | if (current_target != default_target) |
252b5132 | 1793 | output_target = current_target; |
e50d8076 | 1794 | |
08da4cac | 1795 | /* No - can we determine the format of the first input file? */ |
e50d8076 NC |
1796 | else |
1797 | { | |
1798 | output_target = get_first_input_target (); | |
1799 | ||
1800 | /* Failed - use the default output target. */ | |
1801 | if (output_target == NULL) | |
1802 | output_target = default_target; | |
1803 | } | |
1804 | } | |
5f992e62 | 1805 | |
08da4cac KH |
1806 | /* Has the user requested a particular endianness on the command |
1807 | line? */ | |
e50d8076 NC |
1808 | if (command_line.endian != ENDIAN_UNSET) |
1809 | { | |
08da4cac | 1810 | const bfd_target *target; |
1b69a0bf | 1811 | enum bfd_endian desired_endian; |
e50d8076 NC |
1812 | |
1813 | /* Get the chosen target. */ | |
5f992e62 | 1814 | target = bfd_search_for_target (get_target, (PTR) output_target); |
e50d8076 | 1815 | |
c13b1b77 NC |
1816 | /* If the target is not supported, we cannot do anything. */ |
1817 | if (target != NULL) | |
e50d8076 | 1818 | { |
c13b1b77 NC |
1819 | if (command_line.endian == ENDIAN_BIG) |
1820 | desired_endian = BFD_ENDIAN_BIG; | |
e50d8076 | 1821 | else |
c13b1b77 | 1822 | desired_endian = BFD_ENDIAN_LITTLE; |
5f992e62 AM |
1823 | |
1824 | /* See if the target has the wrong endianness. This should | |
1825 | not happen if the linker script has provided big and | |
1826 | little endian alternatives, but some scrips don't do | |
1827 | this. */ | |
c13b1b77 | 1828 | if (target->byteorder != desired_endian) |
e50d8076 | 1829 | { |
c13b1b77 NC |
1830 | /* If it does, then see if the target provides |
1831 | an alternative with the correct endianness. */ | |
1832 | if (target->alternative_target != NULL | |
1833 | && (target->alternative_target->byteorder == desired_endian)) | |
1834 | output_target = target->alternative_target->name; | |
e50d8076 | 1835 | else |
c13b1b77 | 1836 | { |
5f992e62 AM |
1837 | /* Try to find a target as similar as possible to |
1838 | the default target, but which has the desired | |
1839 | endian characteristic. */ | |
d1778b88 AM |
1840 | (void) bfd_search_for_target (closest_target_match, |
1841 | (PTR) target); | |
5f992e62 AM |
1842 | |
1843 | /* Oh dear - we could not find any targets that | |
1844 | satisfy our requirements. */ | |
c13b1b77 NC |
1845 | if (winner == NULL) |
1846 | einfo (_("%P: warning: could not find any targets that match endianness requirement\n")); | |
1847 | else | |
1848 | output_target = winner->name; | |
1849 | } | |
e50d8076 NC |
1850 | } |
1851 | } | |
252b5132 | 1852 | } |
5f992e62 | 1853 | |
252b5132 RH |
1854 | output = bfd_openw (name, output_target); |
1855 | ||
1856 | if (output == (bfd *) NULL) | |
1857 | { | |
1858 | if (bfd_get_error () == bfd_error_invalid_target) | |
e50d8076 NC |
1859 | einfo (_("%P%F: target %s not found\n"), output_target); |
1860 | ||
252b5132 RH |
1861 | einfo (_("%P%F: cannot open output file %s: %E\n"), name); |
1862 | } | |
1863 | ||
1864 | delete_output_file_on_failure = true; | |
1865 | ||
08da4cac KH |
1866 | #if 0 |
1867 | output->flags |= D_PAGED; | |
1868 | #endif | |
252b5132 RH |
1869 | |
1870 | if (! bfd_set_format (output, bfd_object)) | |
1871 | einfo (_("%P%F:%s: can not make object file: %E\n"), name); | |
1872 | if (! bfd_set_arch_mach (output, | |
1873 | ldfile_output_architecture, | |
1874 | ldfile_output_machine)) | |
1875 | einfo (_("%P%F:%s: can not set architecture: %E\n"), name); | |
1876 | ||
1877 | link_info.hash = bfd_link_hash_table_create (output); | |
1878 | if (link_info.hash == (struct bfd_link_hash_table *) NULL) | |
1879 | einfo (_("%P%F: can not create link hash table: %E\n")); | |
1880 | ||
1881 | bfd_set_gp_size (output, g_switch_value); | |
1882 | return output; | |
1883 | } | |
1884 | ||
252b5132 RH |
1885 | static void |
1886 | ldlang_open_output (statement) | |
08da4cac | 1887 | lang_statement_union_type *statement; |
252b5132 RH |
1888 | { |
1889 | switch (statement->header.type) | |
1890 | { | |
1891 | case lang_output_statement_enum: | |
1892 | ASSERT (output_bfd == (bfd *) NULL); | |
1893 | output_bfd = open_output (statement->output_statement.name); | |
1894 | ldemul_set_output_arch (); | |
1895 | if (config.magic_demand_paged && !link_info.relocateable) | |
1896 | output_bfd->flags |= D_PAGED; | |
1897 | else | |
1898 | output_bfd->flags &= ~D_PAGED; | |
1899 | if (config.text_read_only) | |
1900 | output_bfd->flags |= WP_TEXT; | |
1901 | else | |
1902 | output_bfd->flags &= ~WP_TEXT; | |
1903 | if (link_info.traditional_format) | |
1904 | output_bfd->flags |= BFD_TRADITIONAL_FORMAT; | |
1905 | else | |
1906 | output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; | |
1907 | break; | |
1908 | ||
1909 | case lang_target_statement_enum: | |
1910 | current_target = statement->target_statement.target; | |
1911 | break; | |
1912 | default: | |
1913 | break; | |
1914 | } | |
1915 | } | |
1916 | ||
1917 | /* Open all the input files. */ | |
1918 | ||
1919 | static void | |
1920 | open_input_bfds (s, force) | |
1921 | lang_statement_union_type *s; | |
1922 | boolean force; | |
1923 | { | |
bba1a0c0 | 1924 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
1925 | { |
1926 | switch (s->header.type) | |
1927 | { | |
1928 | case lang_constructors_statement_enum: | |
1929 | open_input_bfds (constructor_list.head, force); | |
1930 | break; | |
1931 | case lang_output_section_statement_enum: | |
1932 | open_input_bfds (s->output_section_statement.children.head, force); | |
1933 | break; | |
1934 | case lang_wild_statement_enum: | |
08da4cac | 1935 | /* Maybe we should load the file's symbols. */ |
252b5132 RH |
1936 | if (s->wild_statement.filename |
1937 | && ! wildcardp (s->wild_statement.filename)) | |
1938 | (void) lookup_name (s->wild_statement.filename); | |
1939 | open_input_bfds (s->wild_statement.children.head, force); | |
1940 | break; | |
1941 | case lang_group_statement_enum: | |
1942 | { | |
1943 | struct bfd_link_hash_entry *undefs; | |
1944 | ||
1945 | /* We must continually search the entries in the group | |
08da4cac KH |
1946 | until no new symbols are added to the list of undefined |
1947 | symbols. */ | |
252b5132 RH |
1948 | |
1949 | do | |
1950 | { | |
1951 | undefs = link_info.hash->undefs_tail; | |
1952 | open_input_bfds (s->group_statement.children.head, true); | |
1953 | } | |
1954 | while (undefs != link_info.hash->undefs_tail); | |
1955 | } | |
1956 | break; | |
1957 | case lang_target_statement_enum: | |
1958 | current_target = s->target_statement.target; | |
1959 | break; | |
1960 | case lang_input_statement_enum: | |
e50d8076 | 1961 | if (s->input_statement.real) |
252b5132 RH |
1962 | { |
1963 | lang_statement_list_type add; | |
1964 | ||
1965 | s->input_statement.target = current_target; | |
1966 | ||
1967 | /* If we are being called from within a group, and this | |
1968 | is an archive which has already been searched, then | |
cd4c806a L |
1969 | force it to be researched unless the whole archive |
1970 | has been loaded already. */ | |
252b5132 | 1971 | if (force |
cd4c806a | 1972 | && !s->input_statement.whole_archive |
252b5132 RH |
1973 | && s->input_statement.loaded |
1974 | && bfd_check_format (s->input_statement.the_bfd, | |
1975 | bfd_archive)) | |
1976 | s->input_statement.loaded = false; | |
1977 | ||
d1778b88 | 1978 | lang_list_init (&add); |
1276aefa | 1979 | |
6770ec8c NC |
1980 | if (! load_symbols (&s->input_statement, &add)) |
1981 | config.make_executable = false; | |
252b5132 RH |
1982 | |
1983 | if (add.head != NULL) | |
1984 | { | |
bba1a0c0 AM |
1985 | *add.tail = s->header.next; |
1986 | s->header.next = add.head; | |
252b5132 RH |
1987 | } |
1988 | } | |
1989 | break; | |
1990 | default: | |
1991 | break; | |
1992 | } | |
1993 | } | |
1994 | } | |
1995 | ||
08da4cac KH |
1996 | /* If there are [COMMONS] statements, put a wild one into the bss |
1997 | section. */ | |
252b5132 RH |
1998 | |
1999 | static void | |
2000 | lang_reasonable_defaults () | |
2001 | { | |
2002 | #if 0 | |
2003 | lang_output_section_statement_lookup (".text"); | |
2004 | lang_output_section_statement_lookup (".data"); | |
2005 | ||
08da4cac | 2006 | default_common_section = lang_output_section_statement_lookup (".bss"); |
252b5132 | 2007 | |
252b5132 RH |
2008 | if (placed_commons == false) |
2009 | { | |
2010 | lang_wild_statement_type *new = | |
2011 | new_stat (lang_wild_statement, | |
2012 | &default_common_section->children); | |
2013 | ||
2014 | new->section_name = "COMMON"; | |
2015 | new->filename = (char *) NULL; | |
2016 | lang_list_init (&new->children); | |
2017 | } | |
2018 | #endif | |
252b5132 RH |
2019 | } |
2020 | ||
08da4cac | 2021 | /* Add the supplied name to the symbol table as an undefined reference. |
fcf0e35b AM |
2022 | This is a two step process as the symbol table doesn't even exist at |
2023 | the time the ld command line is processed. First we put the name | |
2024 | on a list, then, once the output file has been opened, transfer the | |
2025 | name to the symbol table. */ | |
2026 | ||
252b5132 RH |
2027 | typedef struct ldlang_undef_chain_list |
2028 | { | |
2029 | struct ldlang_undef_chain_list *next; | |
2030 | char *name; | |
2031 | } ldlang_undef_chain_list_type; | |
2032 | ||
2033 | static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head; | |
2034 | ||
2035 | void | |
2036 | ldlang_add_undef (name) | |
5f992e62 | 2037 | const char *const name; |
252b5132 RH |
2038 | { |
2039 | ldlang_undef_chain_list_type *new = | |
2040 | ((ldlang_undef_chain_list_type *) | |
2041 | stat_alloc (sizeof (ldlang_undef_chain_list_type))); | |
2042 | ||
2043 | new->next = ldlang_undef_chain_list_head; | |
2044 | ldlang_undef_chain_list_head = new; | |
2045 | ||
d1b2b2dc | 2046 | new->name = xstrdup (name); |
fcf0e35b AM |
2047 | |
2048 | if (output_bfd != NULL) | |
2049 | insert_undefined (new->name); | |
2050 | } | |
2051 | ||
2052 | /* Insert NAME as undefined in the symbol table. */ | |
2053 | ||
2054 | static void | |
2055 | insert_undefined (name) | |
2056 | const char *name; | |
2057 | { | |
2058 | struct bfd_link_hash_entry *h; | |
2059 | ||
2060 | h = bfd_link_hash_lookup (link_info.hash, name, true, false, true); | |
2061 | if (h == (struct bfd_link_hash_entry *) NULL) | |
2062 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
2063 | if (h->type == bfd_link_hash_new) | |
2064 | { | |
2065 | h->type = bfd_link_hash_undefined; | |
2066 | h->u.undef.abfd = NULL; | |
2067 | bfd_link_add_undef (link_info.hash, h); | |
2068 | } | |
252b5132 RH |
2069 | } |
2070 | ||
2071 | /* Run through the list of undefineds created above and place them | |
2072 | into the linker hash table as undefined symbols belonging to the | |
08da4cac KH |
2073 | script file. */ |
2074 | ||
252b5132 RH |
2075 | static void |
2076 | lang_place_undefineds () | |
2077 | { | |
2078 | ldlang_undef_chain_list_type *ptr; | |
2079 | ||
2080 | for (ptr = ldlang_undef_chain_list_head; | |
2081 | ptr != (ldlang_undef_chain_list_type *) NULL; | |
2082 | ptr = ptr->next) | |
2083 | { | |
fcf0e35b | 2084 | insert_undefined (ptr->name); |
252b5132 RH |
2085 | } |
2086 | } | |
2087 | ||
08da4cac KH |
2088 | /* Open input files and attatch to output sections. */ |
2089 | ||
252b5132 RH |
2090 | static void |
2091 | map_input_to_output_sections (s, target, output_section_statement) | |
08da4cac | 2092 | lang_statement_union_type *s; |
5f992e62 | 2093 | const char *target; |
08da4cac | 2094 | lang_output_section_statement_type *output_section_statement; |
252b5132 | 2095 | { |
bba1a0c0 | 2096 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
2097 | { |
2098 | switch (s->header.type) | |
2099 | { | |
252b5132 | 2100 | case lang_wild_statement_enum: |
b6bf44ba | 2101 | wild (&s->wild_statement, target, output_section_statement); |
abc6ab0a | 2102 | break; |
252b5132 RH |
2103 | case lang_constructors_statement_enum: |
2104 | map_input_to_output_sections (constructor_list.head, | |
2105 | target, | |
2106 | output_section_statement); | |
2107 | break; | |
2108 | case lang_output_section_statement_enum: | |
2109 | map_input_to_output_sections (s->output_section_statement.children.head, | |
2110 | target, | |
2111 | &s->output_section_statement); | |
2112 | break; | |
2113 | case lang_output_statement_enum: | |
2114 | break; | |
2115 | case lang_target_statement_enum: | |
2116 | target = s->target_statement.target; | |
2117 | break; | |
2118 | case lang_group_statement_enum: | |
2119 | map_input_to_output_sections (s->group_statement.children.head, | |
2120 | target, | |
2121 | output_section_statement); | |
2122 | break; | |
2123 | case lang_fill_statement_enum: | |
2124 | case lang_input_section_enum: | |
2125 | case lang_object_symbols_statement_enum: | |
2126 | case lang_data_statement_enum: | |
2127 | case lang_reloc_statement_enum: | |
2128 | case lang_padding_statement_enum: | |
2129 | case lang_input_statement_enum: | |
2130 | if (output_section_statement != NULL | |
2131 | && output_section_statement->bfd_section == NULL) | |
2132 | init_os (output_section_statement); | |
2133 | break; | |
2134 | case lang_assignment_statement_enum: | |
2135 | if (output_section_statement != NULL | |
2136 | && output_section_statement->bfd_section == NULL) | |
2137 | init_os (output_section_statement); | |
2138 | ||
2139 | /* Make sure that any sections mentioned in the assignment | |
08da4cac | 2140 | are initialized. */ |
252b5132 RH |
2141 | exp_init_os (s->assignment_statement.exp); |
2142 | break; | |
2143 | case lang_afile_asection_pair_statement_enum: | |
2144 | FAIL (); | |
2145 | break; | |
2146 | case lang_address_statement_enum: | |
08da4cac | 2147 | /* Mark the specified section with the supplied address. */ |
252b5132 RH |
2148 | { |
2149 | lang_output_section_statement_type *os = | |
2150 | lang_output_section_statement_lookup | |
2151 | (s->address_statement.section_name); | |
2152 | ||
2153 | if (os->bfd_section == NULL) | |
2154 | init_os (os); | |
2155 | os->addr_tree = s->address_statement.address; | |
2156 | } | |
2157 | break; | |
2158 | } | |
2159 | } | |
2160 | } | |
2161 | ||
2162 | static void | |
2163 | print_output_section_statement (output_section_statement) | |
08da4cac | 2164 | lang_output_section_statement_type *output_section_statement; |
252b5132 RH |
2165 | { |
2166 | asection *section = output_section_statement->bfd_section; | |
2167 | int len; | |
2168 | ||
2169 | if (output_section_statement != abs_output_section) | |
2170 | { | |
2171 | minfo ("\n%s", output_section_statement->name); | |
2172 | ||
2173 | if (section != NULL) | |
2174 | { | |
2175 | print_dot = section->vma; | |
2176 | ||
2177 | len = strlen (output_section_statement->name); | |
2178 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
2179 | { | |
2180 | print_nl (); | |
2181 | len = 0; | |
2182 | } | |
2183 | while (len < SECTION_NAME_MAP_LENGTH) | |
2184 | { | |
2185 | print_space (); | |
2186 | ++len; | |
2187 | } | |
2188 | ||
2189 | minfo ("0x%V %W", section->vma, section->_raw_size); | |
2190 | ||
2191 | if (output_section_statement->load_base != NULL) | |
2192 | { | |
2193 | bfd_vma addr; | |
2194 | ||
2195 | addr = exp_get_abs_int (output_section_statement->load_base, 0, | |
2196 | "load base", lang_final_phase_enum); | |
2197 | minfo (_(" load address 0x%V"), addr); | |
2198 | } | |
2199 | } | |
2200 | ||
2201 | print_nl (); | |
2202 | } | |
2203 | ||
2204 | print_statement_list (output_section_statement->children.head, | |
2205 | output_section_statement); | |
2206 | } | |
2207 | ||
2208 | static void | |
2209 | print_assignment (assignment, output_section) | |
08da4cac KH |
2210 | lang_assignment_statement_type *assignment; |
2211 | lang_output_section_statement_type *output_section; | |
252b5132 RH |
2212 | { |
2213 | int i; | |
2214 | etree_value_type result; | |
2215 | ||
2216 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2217 | print_space (); | |
2218 | ||
2219 | result = exp_fold_tree (assignment->exp->assign.src, output_section, | |
2220 | lang_final_phase_enum, print_dot, &print_dot); | |
2221 | if (result.valid_p) | |
7b17f854 RS |
2222 | { |
2223 | const char *dst; | |
2224 | bfd_vma value; | |
2225 | ||
2226 | value = result.value + result.section->bfd_section->vma; | |
2227 | dst = assignment->exp->assign.dst; | |
2228 | ||
2229 | minfo ("0x%V", value); | |
2230 | if (dst[0] == '.' && dst[1] == 0) | |
2231 | print_dot = value; | |
2232 | } | |
252b5132 RH |
2233 | else |
2234 | { | |
2235 | minfo ("*undef* "); | |
2236 | #ifdef BFD64 | |
2237 | minfo (" "); | |
2238 | #endif | |
2239 | } | |
2240 | ||
2241 | minfo (" "); | |
2242 | ||
2243 | exp_print_tree (assignment->exp); | |
2244 | ||
2245 | print_nl (); | |
2246 | } | |
2247 | ||
2248 | static void | |
2249 | print_input_statement (statm) | |
08da4cac | 2250 | lang_input_statement_type *statm; |
252b5132 RH |
2251 | { |
2252 | if (statm->filename != (char *) NULL) | |
2253 | { | |
2254 | fprintf (config.map_file, "LOAD %s\n", statm->filename); | |
2255 | } | |
2256 | } | |
2257 | ||
2258 | /* Print all symbols defined in a particular section. This is called | |
2259 | via bfd_link_hash_traverse. */ | |
2260 | ||
5f992e62 | 2261 | static boolean |
252b5132 RH |
2262 | print_one_symbol (hash_entry, ptr) |
2263 | struct bfd_link_hash_entry *hash_entry; | |
2264 | PTR ptr; | |
2265 | { | |
2266 | asection *sec = (asection *) ptr; | |
2267 | ||
2268 | if ((hash_entry->type == bfd_link_hash_defined | |
2269 | || hash_entry->type == bfd_link_hash_defweak) | |
2270 | && sec == hash_entry->u.def.section) | |
2271 | { | |
2272 | int i; | |
2273 | ||
2274 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2275 | print_space (); | |
2276 | minfo ("0x%V ", | |
2277 | (hash_entry->u.def.value | |
2278 | + hash_entry->u.def.section->output_offset | |
2279 | + hash_entry->u.def.section->output_section->vma)); | |
2280 | ||
2281 | minfo (" %T\n", hash_entry->root.string); | |
2282 | } | |
2283 | ||
2284 | return true; | |
2285 | } | |
2286 | ||
2287 | /* Print information about an input section to the map file. */ | |
2288 | ||
2289 | static void | |
2290 | print_input_section (in) | |
08da4cac | 2291 | lang_input_section_type *in; |
252b5132 RH |
2292 | { |
2293 | asection *i = in->section; | |
2294 | bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size; | |
5f992e62 | 2295 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
f6af82bd | 2296 | ldfile_output_machine); |
252b5132 RH |
2297 | if (size != 0) |
2298 | { | |
2299 | print_space (); | |
2300 | ||
2301 | minfo ("%s", i->name); | |
2302 | ||
2303 | if (i->output_section != NULL) | |
2304 | { | |
2305 | int len; | |
2306 | ||
2307 | len = 1 + strlen (i->name); | |
2308 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
2309 | { | |
2310 | print_nl (); | |
2311 | len = 0; | |
2312 | } | |
2313 | while (len < SECTION_NAME_MAP_LENGTH) | |
2314 | { | |
2315 | print_space (); | |
2316 | ++len; | |
2317 | } | |
2318 | ||
2319 | minfo ("0x%V %W %B\n", | |
4cbfc3ac | 2320 | i->output_section->vma + i->output_offset, size / opb, |
252b5132 RH |
2321 | i->owner); |
2322 | ||
2323 | if (i->_cooked_size != 0 && i->_cooked_size != i->_raw_size) | |
2324 | { | |
2325 | len = SECTION_NAME_MAP_LENGTH + 3; | |
2326 | #ifdef BFD64 | |
2327 | len += 16; | |
2328 | #else | |
2329 | len += 8; | |
2330 | #endif | |
2331 | while (len > 0) | |
2332 | { | |
2333 | print_space (); | |
2334 | --len; | |
2335 | } | |
2336 | ||
2337 | minfo (_("%W (size before relaxing)\n"), i->_raw_size); | |
2338 | } | |
2339 | ||
2340 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i); | |
2341 | ||
4cbfc3ac | 2342 | print_dot = i->output_section->vma + i->output_offset + size / opb; |
252b5132 RH |
2343 | } |
2344 | } | |
2345 | } | |
2346 | ||
2347 | static void | |
2348 | print_fill_statement (fill) | |
08da4cac | 2349 | lang_fill_statement_type *fill; |
252b5132 | 2350 | { |
2c382fb6 AM |
2351 | size_t size; |
2352 | unsigned char *p; | |
2353 | fputs (" FILL mask 0x", config.map_file); | |
2354 | for (p = fill->fill->data, size = fill->fill->size; size != 0; p++, size--) | |
2355 | fprintf (config.map_file, "%02x", *p); | |
2356 | fputs ("\n", config.map_file); | |
252b5132 RH |
2357 | } |
2358 | ||
2359 | static void | |
2360 | print_data_statement (data) | |
08da4cac | 2361 | lang_data_statement_type *data; |
252b5132 RH |
2362 | { |
2363 | int i; | |
2364 | bfd_vma addr; | |
2365 | bfd_size_type size; | |
2366 | const char *name; | |
5f992e62 | 2367 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
f6af82bd | 2368 | ldfile_output_machine); |
252b5132 RH |
2369 | |
2370 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2371 | print_space (); | |
2372 | ||
2373 | addr = data->output_vma; | |
2374 | if (data->output_section != NULL) | |
2375 | addr += data->output_section->vma; | |
2376 | ||
2377 | switch (data->type) | |
2378 | { | |
2379 | default: | |
2380 | abort (); | |
2381 | case BYTE: | |
2382 | size = BYTE_SIZE; | |
2383 | name = "BYTE"; | |
2384 | break; | |
2385 | case SHORT: | |
2386 | size = SHORT_SIZE; | |
2387 | name = "SHORT"; | |
2388 | break; | |
2389 | case LONG: | |
2390 | size = LONG_SIZE; | |
2391 | name = "LONG"; | |
2392 | break; | |
2393 | case QUAD: | |
2394 | size = QUAD_SIZE; | |
2395 | name = "QUAD"; | |
2396 | break; | |
2397 | case SQUAD: | |
2398 | size = QUAD_SIZE; | |
2399 | name = "SQUAD"; | |
2400 | break; | |
2401 | } | |
2402 | ||
2403 | minfo ("0x%V %W %s 0x%v", addr, size, name, data->value); | |
2404 | ||
2405 | if (data->exp->type.node_class != etree_value) | |
2406 | { | |
2407 | print_space (); | |
2408 | exp_print_tree (data->exp); | |
2409 | } | |
2410 | ||
2411 | print_nl (); | |
2412 | ||
4cbfc3ac TW |
2413 | print_dot = addr + size / opb; |
2414 | ||
252b5132 RH |
2415 | } |
2416 | ||
2417 | /* Print an address statement. These are generated by options like | |
2418 | -Ttext. */ | |
2419 | ||
2420 | static void | |
2421 | print_address_statement (address) | |
2422 | lang_address_statement_type *address; | |
2423 | { | |
2424 | minfo (_("Address of section %s set to "), address->section_name); | |
2425 | exp_print_tree (address->address); | |
2426 | print_nl (); | |
2427 | } | |
2428 | ||
2429 | /* Print a reloc statement. */ | |
2430 | ||
2431 | static void | |
2432 | print_reloc_statement (reloc) | |
2433 | lang_reloc_statement_type *reloc; | |
2434 | { | |
2435 | int i; | |
2436 | bfd_vma addr; | |
2437 | bfd_size_type size; | |
5f992e62 AM |
2438 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
2439 | ldfile_output_machine); | |
252b5132 RH |
2440 | |
2441 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2442 | print_space (); | |
2443 | ||
2444 | addr = reloc->output_vma; | |
2445 | if (reloc->output_section != NULL) | |
2446 | addr += reloc->output_section->vma; | |
2447 | ||
2448 | size = bfd_get_reloc_size (reloc->howto); | |
2449 | ||
2450 | minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name); | |
2451 | ||
2452 | if (reloc->name != NULL) | |
2453 | minfo ("%s+", reloc->name); | |
2454 | else | |
2455 | minfo ("%s+", reloc->section->name); | |
2456 | ||
2457 | exp_print_tree (reloc->addend_exp); | |
2458 | ||
2459 | print_nl (); | |
2460 | ||
4cbfc3ac | 2461 | print_dot = addr + size / opb; |
5f992e62 | 2462 | } |
252b5132 RH |
2463 | |
2464 | static void | |
2465 | print_padding_statement (s) | |
2466 | lang_padding_statement_type *s; | |
2467 | { | |
2468 | int len; | |
2469 | bfd_vma addr; | |
5f992e62 AM |
2470 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
2471 | ldfile_output_machine); | |
252b5132 RH |
2472 | |
2473 | minfo (" *fill*"); | |
2474 | ||
2475 | len = sizeof " *fill*" - 1; | |
2476 | while (len < SECTION_NAME_MAP_LENGTH) | |
2477 | { | |
2478 | print_space (); | |
2479 | ++len; | |
2480 | } | |
2481 | ||
2482 | addr = s->output_offset; | |
2483 | if (s->output_section != NULL) | |
2484 | addr += s->output_section->vma; | |
2c382fb6 | 2485 | minfo ("0x%V %W ", addr, s->size); |
252b5132 | 2486 | |
2c382fb6 AM |
2487 | if (s->fill->size != 0) |
2488 | { | |
2489 | size_t size; | |
2490 | unsigned char *p; | |
2491 | for (p = s->fill->data, size = s->fill->size; size != 0; p++, size--) | |
2492 | fprintf (config.map_file, "%02x", *p); | |
2493 | } | |
252b5132 RH |
2494 | |
2495 | print_nl (); | |
2496 | ||
4cbfc3ac | 2497 | print_dot = addr + s->size / opb; |
252b5132 RH |
2498 | } |
2499 | ||
2500 | static void | |
2501 | print_wild_statement (w, os) | |
08da4cac KH |
2502 | lang_wild_statement_type *w; |
2503 | lang_output_section_statement_type *os; | |
252b5132 | 2504 | { |
b6bf44ba AM |
2505 | struct wildcard_list *sec; |
2506 | ||
252b5132 RH |
2507 | print_space (); |
2508 | ||
2509 | if (w->filenames_sorted) | |
2510 | minfo ("SORT("); | |
08da4cac | 2511 | if (w->filename != NULL) |
252b5132 RH |
2512 | minfo ("%s", w->filename); |
2513 | else | |
2514 | minfo ("*"); | |
2515 | if (w->filenames_sorted) | |
2516 | minfo (")"); | |
2517 | ||
2518 | minfo ("("); | |
b6bf44ba AM |
2519 | for (sec = w->section_list; sec; sec = sec->next) |
2520 | { | |
2521 | if (sec->spec.sorted) | |
2522 | minfo ("SORT("); | |
2523 | if (sec->spec.exclude_name_list != NULL) | |
2524 | { | |
2525 | name_list *tmp; | |
2526 | minfo ("EXCLUDE_FILE ( %s", sec->spec.exclude_name_list->name); | |
2527 | for (tmp = sec->spec.exclude_name_list->next; tmp; tmp = tmp->next) | |
2528 | minfo (", %s", tmp->name); | |
2529 | minfo (")"); | |
2530 | } | |
2531 | if (sec->spec.name != NULL) | |
2532 | minfo ("%s", sec->spec.name); | |
2533 | else | |
2534 | minfo ("*"); | |
2535 | if (sec->spec.sorted) | |
2536 | minfo (")"); | |
2537 | } | |
252b5132 RH |
2538 | minfo (")"); |
2539 | ||
2540 | print_nl (); | |
2541 | ||
2542 | print_statement_list (w->children.head, os); | |
2543 | } | |
2544 | ||
2545 | /* Print a group statement. */ | |
2546 | ||
2547 | static void | |
2548 | print_group (s, os) | |
2549 | lang_group_statement_type *s; | |
2550 | lang_output_section_statement_type *os; | |
2551 | { | |
2552 | fprintf (config.map_file, "START GROUP\n"); | |
2553 | print_statement_list (s->children.head, os); | |
2554 | fprintf (config.map_file, "END GROUP\n"); | |
2555 | } | |
2556 | ||
2557 | /* Print the list of statements in S. | |
2558 | This can be called for any statement type. */ | |
2559 | ||
2560 | static void | |
2561 | print_statement_list (s, os) | |
2562 | lang_statement_union_type *s; | |
2563 | lang_output_section_statement_type *os; | |
2564 | { | |
2565 | while (s != NULL) | |
2566 | { | |
2567 | print_statement (s, os); | |
bba1a0c0 | 2568 | s = s->header.next; |
252b5132 RH |
2569 | } |
2570 | } | |
2571 | ||
2572 | /* Print the first statement in statement list S. | |
2573 | This can be called for any statement type. */ | |
2574 | ||
2575 | static void | |
2576 | print_statement (s, os) | |
2577 | lang_statement_union_type *s; | |
2578 | lang_output_section_statement_type *os; | |
2579 | { | |
2580 | switch (s->header.type) | |
2581 | { | |
2582 | default: | |
2583 | fprintf (config.map_file, _("Fail with %d\n"), s->header.type); | |
2584 | FAIL (); | |
2585 | break; | |
2586 | case lang_constructors_statement_enum: | |
2587 | if (constructor_list.head != NULL) | |
2588 | { | |
2589 | if (constructors_sorted) | |
2590 | minfo (" SORT (CONSTRUCTORS)\n"); | |
2591 | else | |
2592 | minfo (" CONSTRUCTORS\n"); | |
2593 | print_statement_list (constructor_list.head, os); | |
2594 | } | |
2595 | break; | |
2596 | case lang_wild_statement_enum: | |
2597 | print_wild_statement (&s->wild_statement, os); | |
2598 | break; | |
2599 | case lang_address_statement_enum: | |
2600 | print_address_statement (&s->address_statement); | |
2601 | break; | |
2602 | case lang_object_symbols_statement_enum: | |
2603 | minfo (" CREATE_OBJECT_SYMBOLS\n"); | |
2604 | break; | |
2605 | case lang_fill_statement_enum: | |
2606 | print_fill_statement (&s->fill_statement); | |
2607 | break; | |
2608 | case lang_data_statement_enum: | |
2609 | print_data_statement (&s->data_statement); | |
2610 | break; | |
2611 | case lang_reloc_statement_enum: | |
2612 | print_reloc_statement (&s->reloc_statement); | |
2613 | break; | |
2614 | case lang_input_section_enum: | |
2615 | print_input_section (&s->input_section); | |
2616 | break; | |
2617 | case lang_padding_statement_enum: | |
2618 | print_padding_statement (&s->padding_statement); | |
2619 | break; | |
2620 | case lang_output_section_statement_enum: | |
2621 | print_output_section_statement (&s->output_section_statement); | |
2622 | break; | |
2623 | case lang_assignment_statement_enum: | |
2624 | print_assignment (&s->assignment_statement, os); | |
2625 | break; | |
2626 | case lang_target_statement_enum: | |
2627 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
2628 | break; | |
2629 | case lang_output_statement_enum: | |
2630 | minfo ("OUTPUT(%s", s->output_statement.name); | |
2631 | if (output_target != NULL) | |
2632 | minfo (" %s", output_target); | |
2633 | minfo (")\n"); | |
2634 | break; | |
2635 | case lang_input_statement_enum: | |
2636 | print_input_statement (&s->input_statement); | |
2637 | break; | |
2638 | case lang_group_statement_enum: | |
2639 | print_group (&s->group_statement, os); | |
2640 | break; | |
2641 | case lang_afile_asection_pair_statement_enum: | |
2642 | FAIL (); | |
2643 | break; | |
2644 | } | |
2645 | } | |
2646 | ||
2647 | static void | |
2648 | print_statements () | |
2649 | { | |
2650 | print_statement_list (statement_list.head, abs_output_section); | |
2651 | } | |
2652 | ||
2653 | /* Print the first N statements in statement list S to STDERR. | |
2654 | If N == 0, nothing is printed. | |
2655 | If N < 0, the entire list is printed. | |
2656 | Intended to be called from GDB. */ | |
2657 | ||
2658 | void | |
2659 | dprint_statement (s, n) | |
08da4cac | 2660 | lang_statement_union_type *s; |
252b5132 RH |
2661 | int n; |
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 AM |
2681 | static void |
2682 | insert_pad (ptr, fill, alignment_needed, output_section, dot) | |
2683 | lang_statement_union_type **ptr; | |
2c382fb6 | 2684 | fill_type *fill; |
b3327aad AM |
2685 | unsigned int alignment_needed; |
2686 | asection *output_section; | |
252b5132 RH |
2687 | bfd_vma dot; |
2688 | { | |
2c382fb6 | 2689 | static fill_type zero_fill = { 1, { 0 } }; |
b3327aad | 2690 | lang_statement_union_type *pad; |
b3327aad | 2691 | |
c0c330a7 | 2692 | pad = ((lang_statement_union_type *) |
2af02257 | 2693 | ((char *) ptr - offsetof (lang_statement_union_type, header.next))); |
b3327aad | 2694 | if (ptr != &statement_list.head |
2af02257 | 2695 | && pad->header.type == lang_padding_statement_enum |
b3327aad | 2696 | && pad->padding_statement.output_section == output_section) |
252b5132 | 2697 | { |
b3327aad AM |
2698 | /* Use the existing pad statement. The above test on output |
2699 | section is probably redundant, but it doesn't hurt to check. */ | |
252b5132 | 2700 | } |
b3327aad | 2701 | else |
252b5132 | 2702 | { |
b3327aad AM |
2703 | /* Make a new padding statement, linked into existing chain. */ |
2704 | pad = ((lang_statement_union_type *) | |
2705 | stat_alloc (sizeof (lang_padding_statement_type))); | |
2706 | pad->header.next = *ptr; | |
2707 | *ptr = pad; | |
2708 | pad->header.type = lang_padding_statement_enum; | |
2709 | pad->padding_statement.output_section = output_section; | |
2c382fb6 AM |
2710 | if (fill == (fill_type *) 0) |
2711 | fill = &zero_fill; | |
b3327aad | 2712 | pad->padding_statement.fill = fill; |
252b5132 | 2713 | } |
b3327aad AM |
2714 | pad->padding_statement.output_offset = dot - output_section->vma; |
2715 | pad->padding_statement.size = alignment_needed; | |
2716 | output_section->_raw_size += alignment_needed; | |
252b5132 RH |
2717 | } |
2718 | ||
08da4cac KH |
2719 | /* Work out how much this section will move the dot point. */ |
2720 | ||
252b5132 | 2721 | static bfd_vma |
b3327aad | 2722 | size_input_section (this_ptr, output_section_statement, fill, dot) |
08da4cac KH |
2723 | lang_statement_union_type **this_ptr; |
2724 | lang_output_section_statement_type *output_section_statement; | |
2c382fb6 | 2725 | fill_type *fill; |
252b5132 | 2726 | bfd_vma dot; |
252b5132 RH |
2727 | { |
2728 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
2729 | asection *i = is->section; | |
2730 | ||
2731 | if (is->ifile->just_syms_flag == false) | |
2732 | { | |
b3327aad AM |
2733 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
2734 | ldfile_output_machine); | |
2735 | unsigned int alignment_needed; | |
2736 | asection *o; | |
2737 | ||
2738 | /* Align this section first to the input sections requirement, | |
2739 | then to the output section's requirement. If this alignment | |
2740 | is greater than any seen before, then record it too. Perform | |
2741 | the alignment by inserting a magic 'padding' statement. */ | |
2742 | ||
252b5132 | 2743 | if (output_section_statement->subsection_alignment != -1) |
b3327aad AM |
2744 | i->alignment_power = output_section_statement->subsection_alignment; |
2745 | ||
2746 | o = output_section_statement->bfd_section; | |
2747 | if (o->alignment_power < i->alignment_power) | |
2748 | o->alignment_power = i->alignment_power; | |
252b5132 | 2749 | |
b3327aad AM |
2750 | alignment_needed = align_power (dot, i->alignment_power) - dot; |
2751 | ||
2752 | if (alignment_needed != 0) | |
2753 | { | |
2754 | insert_pad (this_ptr, fill, alignment_needed * opb, o, dot); | |
2755 | dot += alignment_needed; | |
2756 | } | |
252b5132 | 2757 | |
08da4cac | 2758 | /* Remember where in the output section this input section goes. */ |
252b5132 | 2759 | |
b3327aad | 2760 | i->output_offset = dot - o->vma; |
252b5132 | 2761 | |
08da4cac | 2762 | /* Mark how big the output section must be to contain this now. */ |
252b5132 | 2763 | if (i->_cooked_size != 0) |
4cbfc3ac | 2764 | dot += i->_cooked_size / opb; |
252b5132 | 2765 | else |
4cbfc3ac | 2766 | dot += i->_raw_size / opb; |
b3327aad | 2767 | o->_raw_size = (dot - o->vma) * opb; |
252b5132 RH |
2768 | } |
2769 | else | |
2770 | { | |
2771 | i->output_offset = i->vma - output_section_statement->bfd_section->vma; | |
2772 | } | |
2773 | ||
2774 | return dot; | |
2775 | } | |
2776 | ||
33275c22 | 2777 | #define IGNORE_SECTION(bfd, s) \ |
d1778b88 AM |
2778 | (((bfd_get_section_flags (bfd, s) & (SEC_ALLOC | SEC_LOAD)) \ |
2779 | != (SEC_ALLOC | SEC_LOAD)) \ | |
33275c22 | 2780 | || bfd_section_size (bfd, s) == 0) |
d1778b88 | 2781 | |
252b5132 RH |
2782 | /* Check to see if any allocated sections overlap with other allocated |
2783 | sections. This can happen when the linker script specifically specifies | |
2784 | the output section addresses of the two sections. */ | |
08da4cac | 2785 | |
252b5132 RH |
2786 | static void |
2787 | lang_check_section_addresses () | |
2788 | { | |
08da4cac | 2789 | asection *s; |
f6af82bd | 2790 | unsigned opb = bfd_octets_per_byte (output_bfd); |
252b5132 RH |
2791 | |
2792 | /* Scan all sections in the output list. */ | |
2793 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
33275c22 | 2794 | { |
08da4cac | 2795 | asection *os; |
5f992e62 | 2796 | |
33275c22 NC |
2797 | /* Ignore sections which are not loaded or which have no contents. */ |
2798 | if (IGNORE_SECTION (output_bfd, s)) | |
2799 | continue; | |
5f992e62 | 2800 | |
33275c22 NC |
2801 | /* Once we reach section 's' stop our seach. This prevents two |
2802 | warning messages from being produced, one for 'section A overlaps | |
2803 | section B' and one for 'section B overlaps section A'. */ | |
2804 | for (os = output_bfd->sections; os != s; os = os->next) | |
2805 | { | |
2806 | bfd_vma s_start; | |
2807 | bfd_vma s_end; | |
2808 | bfd_vma os_start; | |
2809 | bfd_vma os_end; | |
5f992e62 | 2810 | |
33275c22 NC |
2811 | /* Only consider loadable sections with real contents. */ |
2812 | if (IGNORE_SECTION (output_bfd, os)) | |
2813 | continue; | |
252b5132 | 2814 | |
33275c22 NC |
2815 | /* We must check the sections' LMA addresses not their |
2816 | VMA addresses because overlay sections can have | |
2817 | overlapping VMAs but they must have distinct LMAs. */ | |
2818 | s_start = bfd_section_lma (output_bfd, s); | |
2819 | os_start = bfd_section_lma (output_bfd, os); | |
9e4ed18c TW |
2820 | s_end = s_start + bfd_section_size (output_bfd, s) / opb - 1; |
2821 | os_end = os_start + bfd_section_size (output_bfd, os) / opb - 1; | |
5f992e62 | 2822 | |
33275c22 NC |
2823 | /* Look for an overlap. */ |
2824 | if ((s_end < os_start) || (s_start > os_end)) | |
2825 | continue; | |
5f992e62 | 2826 | |
33275c22 | 2827 | einfo ( |
252b5132 | 2828 | _("%X%P: section %s [%V -> %V] overlaps section %s [%V -> %V]\n"), |
33275c22 | 2829 | s->name, s_start, s_end, os->name, os_start, os_end); |
5f992e62 | 2830 | |
33275c22 NC |
2831 | /* Once we have found one overlap for this section, |
2832 | stop looking for others. */ | |
2833 | break; | |
2834 | } | |
2835 | } | |
252b5132 RH |
2836 | } |
2837 | ||
562d3460 TW |
2838 | /* Make sure the new address is within the region. We explicitly permit the |
2839 | current address to be at the exact end of the region when the address is | |
2840 | non-zero, in case the region is at the end of addressable memory and the | |
5f992e62 | 2841 | calculation wraps around. */ |
562d3460 TW |
2842 | |
2843 | static void | |
2844 | os_region_check (os, region, tree, base) | |
08da4cac KH |
2845 | lang_output_section_statement_type *os; |
2846 | struct memory_region_struct *region; | |
2847 | etree_type *tree; | |
2848 | bfd_vma base; | |
562d3460 TW |
2849 | { |
2850 | if ((region->current < region->origin | |
2851 | || (region->current - region->origin > region->length)) | |
2852 | && ((region->current != region->origin + region->length) | |
b7a26f91 | 2853 | || base == 0)) |
562d3460 TW |
2854 | { |
2855 | if (tree != (etree_type *) NULL) | |
b7a26f91 KH |
2856 | { |
2857 | einfo (_("%X%P: address 0x%v of %B section %s is not within region %s\n"), | |
2858 | region->current, | |
2859 | os->bfd_section->owner, | |
2860 | os->bfd_section->name, | |
2861 | region->name); | |
2862 | } | |
562d3460 | 2863 | else |
b7a26f91 KH |
2864 | { |
2865 | einfo (_("%X%P: region %s is full (%B section %s)\n"), | |
2866 | region->name, | |
2867 | os->bfd_section->owner, | |
2868 | os->bfd_section->name); | |
2869 | } | |
562d3460 TW |
2870 | /* Reset the region pointer. */ |
2871 | region->current = region->origin; | |
2872 | } | |
2873 | } | |
2874 | ||
252b5132 RH |
2875 | /* Set the sizes for all the output sections. */ |
2876 | ||
2d20f7bf JJ |
2877 | static bfd_vma |
2878 | lang_size_sections_1 (s, output_section_statement, prev, fill, dot, relax) | |
08da4cac KH |
2879 | lang_statement_union_type *s; |
2880 | lang_output_section_statement_type *output_section_statement; | |
2881 | lang_statement_union_type **prev; | |
2c382fb6 | 2882 | fill_type *fill; |
252b5132 | 2883 | bfd_vma dot; |
b3327aad | 2884 | boolean *relax; |
252b5132 | 2885 | { |
5f992e62 | 2886 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
f6af82bd | 2887 | ldfile_output_machine); |
4cbfc3ac | 2888 | |
252b5132 | 2889 | /* Size up the sections from their constituent parts. */ |
bba1a0c0 | 2890 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
2891 | { |
2892 | switch (s->header.type) | |
2893 | { | |
2894 | case lang_output_section_statement_enum: | |
2895 | { | |
2896 | bfd_vma after; | |
d1778b88 | 2897 | lang_output_section_statement_type *os; |
252b5132 | 2898 | |
d1778b88 | 2899 | os = &s->output_section_statement; |
252b5132 RH |
2900 | if (os->bfd_section == NULL) |
2901 | /* This section was never actually created. */ | |
2902 | break; | |
2903 | ||
2904 | /* If this is a COFF shared library section, use the size and | |
2905 | address from the input section. FIXME: This is COFF | |
2906 | specific; it would be cleaner if there were some other way | |
2907 | to do this, but nothing simple comes to mind. */ | |
2908 | if ((os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
2909 | { | |
08da4cac | 2910 | asection *input; |
252b5132 RH |
2911 | |
2912 | if (os->children.head == NULL | |
bba1a0c0 | 2913 | || os->children.head->header.next != NULL |
252b5132 RH |
2914 | || os->children.head->header.type != lang_input_section_enum) |
2915 | einfo (_("%P%X: Internal error on COFF shared library section %s\n"), | |
2916 | os->name); | |
2917 | ||
2918 | input = os->children.head->input_section.section; | |
2919 | bfd_set_section_vma (os->bfd_section->owner, | |
2920 | os->bfd_section, | |
2921 | bfd_section_vma (input->owner, input)); | |
2922 | os->bfd_section->_raw_size = input->_raw_size; | |
2923 | break; | |
2924 | } | |
2925 | ||
2926 | if (bfd_is_abs_section (os->bfd_section)) | |
2927 | { | |
2928 | /* No matter what happens, an abs section starts at zero. */ | |
2929 | ASSERT (os->bfd_section->vma == 0); | |
2930 | } | |
2931 | else | |
2932 | { | |
2933 | if (os->addr_tree == (etree_type *) NULL) | |
2934 | { | |
2935 | /* No address specified for this section, get one | |
2936 | from the region specification. */ | |
2937 | if (os->region == (lang_memory_region_type *) NULL | |
2938 | || (((bfd_get_section_flags (output_bfd, os->bfd_section) | |
2939 | & (SEC_ALLOC | SEC_LOAD)) != 0) | |
2940 | && os->region->name[0] == '*' | |
2941 | && strcmp (os->region->name, "*default*") == 0)) | |
2942 | { | |
2943 | os->region = lang_memory_default (os->bfd_section); | |
2944 | } | |
2945 | ||
2946 | /* If a loadable section is using the default memory | |
2947 | region, and some non default memory regions were | |
2948 | defined, issue a warning. */ | |
2949 | if ((bfd_get_section_flags (output_bfd, os->bfd_section) | |
2950 | & (SEC_ALLOC | SEC_LOAD)) != 0 | |
d08a14c3 AM |
2951 | && (bfd_get_section_flags (output_bfd, os->bfd_section) |
2952 | & SEC_NEVER_LOAD) == 0 | |
252b5132 RH |
2953 | && ! link_info.relocateable |
2954 | && strcmp (os->region->name, "*default*") == 0 | |
2955 | && lang_memory_region_list != NULL | |
d1778b88 AM |
2956 | && (strcmp (lang_memory_region_list->name, |
2957 | "*default*") != 0 | |
252b5132 RH |
2958 | || lang_memory_region_list->next != NULL)) |
2959 | einfo (_("%P: warning: no memory region specified for section `%s'\n"), | |
d1778b88 AM |
2960 | bfd_get_section_name (output_bfd, |
2961 | os->bfd_section)); | |
252b5132 RH |
2962 | |
2963 | dot = os->region->current; | |
5f992e62 | 2964 | |
252b5132 RH |
2965 | if (os->section_alignment == -1) |
2966 | { | |
2967 | bfd_vma olddot; | |
2968 | ||
2969 | olddot = dot; | |
d1778b88 AM |
2970 | dot = align_power (dot, |
2971 | os->bfd_section->alignment_power); | |
252b5132 RH |
2972 | |
2973 | if (dot != olddot && config.warn_section_align) | |
2974 | einfo (_("%P: warning: changing start of section %s by %u bytes\n"), | |
2975 | os->name, (unsigned int) (dot - olddot)); | |
2976 | } | |
2977 | } | |
2978 | else | |
2979 | { | |
2980 | etree_value_type r; | |
2981 | ||
2982 | r = exp_fold_tree (os->addr_tree, | |
2983 | abs_output_section, | |
2984 | lang_allocating_phase_enum, | |
2985 | dot, &dot); | |
2986 | if (r.valid_p == false) | |
2987 | { | |
2988 | einfo (_("%F%S: non constant address expression for section %s\n"), | |
2989 | os->name); | |
2990 | } | |
2991 | dot = r.value + r.section->bfd_section->vma; | |
2992 | } | |
5f992e62 | 2993 | |
252b5132 RH |
2994 | /* The section starts here. |
2995 | First, align to what the section needs. */ | |
2996 | ||
2997 | if (os->section_alignment != -1) | |
2998 | dot = align_power (dot, os->section_alignment); | |
2999 | ||
3000 | bfd_set_section_vma (0, os->bfd_section, dot); | |
5f992e62 | 3001 | |
252b5132 RH |
3002 | os->bfd_section->output_offset = 0; |
3003 | } | |
3004 | ||
2d20f7bf JJ |
3005 | lang_size_sections_1 (os->children.head, os, &os->children.head, |
3006 | os->fill, dot, relax); | |
5f992e62 | 3007 | |
08da4cac KH |
3008 | /* Put the section within the requested block size, or |
3009 | align at the block boundary. */ | |
32edc927 TW |
3010 | after = ALIGN_N (os->bfd_section->vma |
3011 | + os->bfd_section->_raw_size / opb, | |
252b5132 RH |
3012 | /* The coercion here is important, see ld.h. */ |
3013 | (bfd_vma) os->block_value); | |
3014 | ||
3015 | if (bfd_is_abs_section (os->bfd_section)) | |
3016 | ASSERT (after == os->bfd_section->vma); | |
13ae64f3 JJ |
3017 | else if ((os->bfd_section->flags & SEC_HAS_CONTENTS) == 0 |
3018 | && (os->bfd_section->flags & SEC_THREAD_LOCAL)) | |
3019 | os->bfd_section->_raw_size = 0; | |
252b5132 | 3020 | else |
5f992e62 | 3021 | os->bfd_section->_raw_size = |
08da4cac | 3022 | (after - os->bfd_section->vma) * opb; |
9f88b410 | 3023 | |
4cbfc3ac | 3024 | dot = os->bfd_section->vma + os->bfd_section->_raw_size / opb; |
252b5132 RH |
3025 | os->processed = true; |
3026 | ||
9f88b410 RS |
3027 | if (os->update_dot_tree != 0) |
3028 | exp_fold_tree (os->update_dot_tree, abs_output_section, | |
3029 | lang_allocating_phase_enum, dot, &dot); | |
3030 | ||
252b5132 RH |
3031 | /* Update dot in the region ? |
3032 | We only do this if the section is going to be allocated, | |
3033 | since unallocated sections do not contribute to the region's | |
13392b77 | 3034 | overall size in memory. |
5f992e62 | 3035 | |
cce4c4c5 NC |
3036 | If the SEC_NEVER_LOAD bit is not set, it will affect the |
3037 | addresses of sections after it. We have to update | |
3038 | dot. */ | |
252b5132 | 3039 | if (os->region != (lang_memory_region_type *) NULL |
cce4c4c5 NC |
3040 | && ((bfd_get_section_flags (output_bfd, os->bfd_section) |
3041 | & SEC_NEVER_LOAD) == 0 | |
3042 | || (bfd_get_section_flags (output_bfd, os->bfd_section) | |
3043 | & (SEC_ALLOC | SEC_LOAD)))) | |
252b5132 RH |
3044 | { |
3045 | os->region->current = dot; | |
5f992e62 | 3046 | |
562d3460 | 3047 | /* Make sure the new address is within the region. */ |
08da4cac KH |
3048 | os_region_check (os, os->region, os->addr_tree, |
3049 | os->bfd_section->vma); | |
3050 | ||
3051 | /* If there's no load address specified, use the run | |
3052 | region as the load region. */ | |
3053 | if (os->lma_region == NULL && os->load_base == NULL) | |
3054 | os->lma_region = os->region; | |
3055 | ||
3056 | if (os->lma_region != NULL) | |
3057 | { | |
3058 | if (os->load_base != NULL) | |
3059 | { | |
3060 | einfo (_("%X%P: use an absolute load address or a load memory region, not both\n")); | |
3061 | } | |
3062 | else | |
3063 | { | |
3064 | /* Don't allocate twice. */ | |
3065 | if (os->lma_region != os->region) | |
3066 | { | |
3067 | /* Set load_base, which will be handled later. */ | |
3068 | os->load_base = | |
3069 | exp_intop (os->lma_region->current); | |
3070 | os->lma_region->current += | |
3071 | os->bfd_section->_raw_size / opb; | |
3072 | os_region_check (os, os->lma_region, NULL, | |
3073 | os->bfd_section->lma); | |
3074 | } | |
3075 | } | |
3076 | } | |
252b5132 RH |
3077 | } |
3078 | } | |
3079 | break; | |
3080 | ||
3081 | case lang_constructors_statement_enum: | |
2d20f7bf JJ |
3082 | dot = lang_size_sections_1 (constructor_list.head, |
3083 | output_section_statement, | |
3084 | &s->wild_statement.children.head, | |
3085 | fill, dot, relax); | |
252b5132 RH |
3086 | break; |
3087 | ||
3088 | case lang_data_statement_enum: | |
3089 | { | |
3090 | unsigned int size = 0; | |
3091 | ||
08da4cac KH |
3092 | s->data_statement.output_vma = |
3093 | dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
3094 | s->data_statement.output_section = |
3095 | output_section_statement->bfd_section; | |
3096 | ||
3097 | switch (s->data_statement.type) | |
3098 | { | |
08da4cac KH |
3099 | default: |
3100 | abort (); | |
252b5132 RH |
3101 | case QUAD: |
3102 | case SQUAD: | |
3103 | size = QUAD_SIZE; | |
3104 | break; | |
3105 | case LONG: | |
3106 | size = LONG_SIZE; | |
3107 | break; | |
3108 | case SHORT: | |
3109 | size = SHORT_SIZE; | |
3110 | break; | |
3111 | case BYTE: | |
3112 | size = BYTE_SIZE; | |
3113 | break; | |
3114 | } | |
08da4cac KH |
3115 | if (size < opb) |
3116 | size = opb; | |
4cbfc3ac | 3117 | dot += size / opb; |
252b5132 RH |
3118 | output_section_statement->bfd_section->_raw_size += size; |
3119 | /* The output section gets contents, and then we inspect for | |
3120 | any flags set in the input script which override any ALLOC. */ | |
3121 | output_section_statement->bfd_section->flags |= SEC_HAS_CONTENTS; | |
08da4cac KH |
3122 | if (!(output_section_statement->flags & SEC_NEVER_LOAD)) |
3123 | { | |
3124 | output_section_statement->bfd_section->flags |= | |
3125 | SEC_ALLOC | SEC_LOAD; | |
3126 | } | |
252b5132 RH |
3127 | } |
3128 | break; | |
3129 | ||
3130 | case lang_reloc_statement_enum: | |
3131 | { | |
3132 | int size; | |
3133 | ||
3134 | s->reloc_statement.output_vma = | |
3135 | dot - output_section_statement->bfd_section->vma; | |
3136 | s->reloc_statement.output_section = | |
3137 | output_section_statement->bfd_section; | |
3138 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
4cbfc3ac | 3139 | dot += size / opb; |
252b5132 RH |
3140 | output_section_statement->bfd_section->_raw_size += size; |
3141 | } | |
3142 | break; | |
5f992e62 | 3143 | |
252b5132 RH |
3144 | case lang_wild_statement_enum: |
3145 | ||
2d20f7bf JJ |
3146 | dot = lang_size_sections_1 (s->wild_statement.children.head, |
3147 | output_section_statement, | |
3148 | &s->wild_statement.children.head, | |
3149 | fill, dot, relax); | |
252b5132 RH |
3150 | |
3151 | break; | |
3152 | ||
3153 | case lang_object_symbols_statement_enum: | |
3154 | link_info.create_object_symbols_section = | |
3155 | output_section_statement->bfd_section; | |
3156 | break; | |
3157 | case lang_output_statement_enum: | |
3158 | case lang_target_statement_enum: | |
3159 | break; | |
3160 | case lang_input_section_enum: | |
3161 | { | |
3162 | asection *i; | |
3163 | ||
3164 | i = (*prev)->input_section.section; | |
3165 | if (! relax) | |
3166 | { | |
3167 | if (i->_cooked_size == 0) | |
3168 | i->_cooked_size = i->_raw_size; | |
3169 | } | |
3170 | else | |
3171 | { | |
3172 | boolean again; | |
3173 | ||
3174 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) | |
3175 | einfo (_("%P%F: can't relax section: %E\n")); | |
3176 | if (again) | |
b3327aad | 3177 | *relax = true; |
252b5132 | 3178 | } |
b3327aad AM |
3179 | dot = size_input_section (prev, output_section_statement, |
3180 | output_section_statement->fill, dot); | |
252b5132 RH |
3181 | } |
3182 | break; | |
3183 | case lang_input_statement_enum: | |
3184 | break; | |
3185 | case lang_fill_statement_enum: | |
08da4cac KH |
3186 | s->fill_statement.output_section = |
3187 | output_section_statement->bfd_section; | |
252b5132 RH |
3188 | |
3189 | fill = s->fill_statement.fill; | |
3190 | break; | |
3191 | case lang_assignment_statement_enum: | |
3192 | { | |
3193 | bfd_vma newdot = dot; | |
3194 | ||
3195 | exp_fold_tree (s->assignment_statement.exp, | |
3196 | output_section_statement, | |
3197 | lang_allocating_phase_enum, | |
3198 | dot, | |
3199 | &newdot); | |
3200 | ||
3201 | if (newdot != dot) | |
3202 | { | |
252b5132 RH |
3203 | if (output_section_statement == abs_output_section) |
3204 | { | |
3205 | /* If we don't have an output section, then just adjust | |
3206 | the default memory address. */ | |
3207 | lang_memory_region_lookup ("*default*")->current = newdot; | |
3208 | } | |
b3327aad | 3209 | else |
252b5132 | 3210 | { |
b3327aad AM |
3211 | /* Insert a pad after this statement. We can't |
3212 | put the pad before when relaxing, in case the | |
3213 | assignment references dot. */ | |
3214 | insert_pad (&s->header.next, fill, (newdot - dot) * opb, | |
3215 | output_section_statement->bfd_section, dot); | |
3216 | ||
3217 | /* Don't neuter the pad below when relaxing. */ | |
3218 | s = s->header.next; | |
252b5132 RH |
3219 | } |
3220 | ||
3221 | dot = newdot; | |
3222 | } | |
3223 | } | |
3224 | break; | |
3225 | ||
3226 | case lang_padding_statement_enum: | |
c0c330a7 AM |
3227 | /* If this is the first time lang_size_sections is called, |
3228 | we won't have any padding statements. If this is the | |
3229 | second or later passes when relaxing, we should allow | |
3230 | padding to shrink. If padding is needed on this pass, it | |
3231 | will be added back in. */ | |
3232 | s->padding_statement.size = 0; | |
6e814ff8 AM |
3233 | |
3234 | /* Make sure output_offset is valid. If relaxation shrinks | |
3235 | the section and this pad isn't needed, it's possible to | |
3236 | have output_offset larger than the final size of the | |
3237 | section. bfd_set_section_contents will complain even for | |
3238 | a pad size of zero. */ | |
3239 | s->padding_statement.output_offset | |
3240 | = dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
3241 | break; |
3242 | ||
3243 | case lang_group_statement_enum: | |
2d20f7bf JJ |
3244 | dot = lang_size_sections_1 (s->group_statement.children.head, |
3245 | output_section_statement, | |
3246 | &s->group_statement.children.head, | |
3247 | fill, dot, relax); | |
252b5132 RH |
3248 | break; |
3249 | ||
3250 | default: | |
3251 | FAIL (); | |
3252 | break; | |
3253 | ||
c0c330a7 | 3254 | /* We can only get here when relaxing is turned on. */ |
252b5132 RH |
3255 | case lang_address_statement_enum: |
3256 | break; | |
3257 | } | |
3258 | prev = &s->header.next; | |
3259 | } | |
3260 | return dot; | |
3261 | } | |
3262 | ||
2d20f7bf JJ |
3263 | bfd_vma |
3264 | lang_size_sections (s, output_section_statement, prev, fill, dot, relax) | |
3265 | lang_statement_union_type *s; | |
3266 | lang_output_section_statement_type *output_section_statement; | |
3267 | lang_statement_union_type **prev; | |
2c382fb6 | 3268 | fill_type *fill; |
2d20f7bf JJ |
3269 | bfd_vma dot; |
3270 | boolean *relax; | |
3271 | { | |
3272 | bfd_vma result; | |
3273 | ||
3274 | exp_data_seg.phase = exp_dataseg_none; | |
3275 | result = lang_size_sections_1 (s, output_section_statement, prev, fill, | |
3276 | dot, relax); | |
3277 | if (exp_data_seg.phase == exp_dataseg_end_seen) | |
3278 | { | |
3279 | /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_END pair was seen, check whether | |
3280 | a page could be saved in the data segment. */ | |
3281 | bfd_vma first, last; | |
3282 | ||
3283 | first = -exp_data_seg.base & (exp_data_seg.pagesize - 1); | |
3284 | last = exp_data_seg.end & (exp_data_seg.pagesize - 1); | |
3285 | if (first && last | |
3286 | && ((exp_data_seg.base & ~(exp_data_seg.pagesize - 1)) | |
3287 | != (exp_data_seg.end & ~(exp_data_seg.pagesize - 1))) | |
3288 | && first + last <= exp_data_seg.pagesize) | |
3289 | { | |
3290 | exp_data_seg.phase = exp_dataseg_adjust; | |
3291 | result = lang_size_sections_1 (s, output_section_statement, prev, | |
3292 | fill, dot, relax); | |
3293 | } | |
3294 | } | |
3295 | ||
3296 | return result; | |
3297 | } | |
3298 | ||
252b5132 RH |
3299 | bfd_vma |
3300 | lang_do_assignments (s, output_section_statement, fill, dot) | |
08da4cac KH |
3301 | lang_statement_union_type *s; |
3302 | lang_output_section_statement_type *output_section_statement; | |
2c382fb6 | 3303 | fill_type *fill; |
252b5132 RH |
3304 | bfd_vma dot; |
3305 | { | |
5f992e62 AM |
3306 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
3307 | ldfile_output_machine); | |
4cbfc3ac | 3308 | |
bba1a0c0 | 3309 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
3310 | { |
3311 | switch (s->header.type) | |
3312 | { | |
3313 | case lang_constructors_statement_enum: | |
3314 | dot = lang_do_assignments (constructor_list.head, | |
3315 | output_section_statement, | |
3316 | fill, | |
3317 | dot); | |
3318 | break; | |
3319 | ||
3320 | case lang_output_section_statement_enum: | |
3321 | { | |
d1778b88 | 3322 | lang_output_section_statement_type *os; |
252b5132 | 3323 | |
d1778b88 | 3324 | os = &(s->output_section_statement); |
252b5132 RH |
3325 | if (os->bfd_section != NULL) |
3326 | { | |
3327 | dot = os->bfd_section->vma; | |
3328 | (void) lang_do_assignments (os->children.head, os, | |
3329 | os->fill, dot); | |
4cbfc3ac TW |
3330 | dot = os->bfd_section->vma + os->bfd_section->_raw_size / opb; |
3331 | ||
252b5132 | 3332 | } |
c13b1b77 | 3333 | if (os->load_base) |
252b5132 RH |
3334 | { |
3335 | /* If nothing has been placed into the output section then | |
4de2d33d | 3336 | it won't have a bfd_section. */ |
5f992e62 | 3337 | if (os->bfd_section) |
252b5132 | 3338 | { |
5f992e62 | 3339 | os->bfd_section->lma |
08da4cac KH |
3340 | = exp_get_abs_int (os->load_base, 0, "load base", |
3341 | lang_final_phase_enum); | |
252b5132 RH |
3342 | } |
3343 | } | |
3344 | } | |
3345 | break; | |
3346 | case lang_wild_statement_enum: | |
3347 | ||
3348 | dot = lang_do_assignments (s->wild_statement.children.head, | |
3349 | output_section_statement, | |
3350 | fill, dot); | |
3351 | ||
3352 | break; | |
3353 | ||
3354 | case lang_object_symbols_statement_enum: | |
3355 | case lang_output_statement_enum: | |
3356 | case lang_target_statement_enum: | |
3357 | #if 0 | |
3358 | case lang_common_statement_enum: | |
3359 | #endif | |
3360 | break; | |
3361 | case lang_data_statement_enum: | |
3362 | { | |
3363 | etree_value_type value; | |
3364 | ||
3365 | value = exp_fold_tree (s->data_statement.exp, | |
3366 | abs_output_section, | |
3367 | lang_final_phase_enum, dot, &dot); | |
3368 | s->data_statement.value = value.value; | |
3369 | if (value.valid_p == false) | |
3370 | einfo (_("%F%P: invalid data statement\n")); | |
3371 | } | |
b7a26f91 KH |
3372 | { |
3373 | unsigned int size; | |
08da4cac KH |
3374 | switch (s->data_statement.type) |
3375 | { | |
3376 | default: | |
3377 | abort (); | |
3378 | case QUAD: | |
3379 | case SQUAD: | |
3380 | size = QUAD_SIZE; | |
3381 | break; | |
3382 | case LONG: | |
3383 | size = LONG_SIZE; | |
3384 | break; | |
3385 | case SHORT: | |
3386 | size = SHORT_SIZE; | |
3387 | break; | |
3388 | case BYTE: | |
3389 | size = BYTE_SIZE; | |
3390 | break; | |
3391 | } | |
3392 | if (size < opb) | |
3393 | size = opb; | |
3394 | dot += size / opb; | |
3395 | } | |
252b5132 RH |
3396 | break; |
3397 | ||
3398 | case lang_reloc_statement_enum: | |
3399 | { | |
3400 | etree_value_type value; | |
3401 | ||
3402 | value = exp_fold_tree (s->reloc_statement.addend_exp, | |
3403 | abs_output_section, | |
3404 | lang_final_phase_enum, dot, &dot); | |
3405 | s->reloc_statement.addend_value = value.value; | |
3406 | if (value.valid_p == false) | |
3407 | einfo (_("%F%P: invalid reloc statement\n")); | |
3408 | } | |
4cbfc3ac | 3409 | dot += bfd_get_reloc_size (s->reloc_statement.howto) / opb; |
252b5132 RH |
3410 | break; |
3411 | ||
3412 | case lang_input_section_enum: | |
3413 | { | |
3414 | asection *in = s->input_section.section; | |
3415 | ||
3416 | if (in->_cooked_size != 0) | |
4cbfc3ac | 3417 | dot += in->_cooked_size / opb; |
252b5132 | 3418 | else |
4cbfc3ac | 3419 | dot += in->_raw_size / opb; |
252b5132 RH |
3420 | } |
3421 | break; | |
3422 | ||
3423 | case lang_input_statement_enum: | |
3424 | break; | |
3425 | case lang_fill_statement_enum: | |
3426 | fill = s->fill_statement.fill; | |
3427 | break; | |
3428 | case lang_assignment_statement_enum: | |
3429 | { | |
3430 | exp_fold_tree (s->assignment_statement.exp, | |
3431 | output_section_statement, | |
3432 | lang_final_phase_enum, | |
3433 | dot, | |
3434 | &dot); | |
3435 | } | |
3436 | ||
3437 | break; | |
3438 | case lang_padding_statement_enum: | |
4cbfc3ac | 3439 | dot += s->padding_statement.size / opb; |
252b5132 RH |
3440 | break; |
3441 | ||
3442 | case lang_group_statement_enum: | |
3443 | dot = lang_do_assignments (s->group_statement.children.head, | |
3444 | output_section_statement, | |
3445 | fill, dot); | |
3446 | ||
3447 | break; | |
3448 | ||
3449 | default: | |
3450 | FAIL (); | |
3451 | break; | |
3452 | case lang_address_statement_enum: | |
3453 | break; | |
3454 | } | |
3455 | ||
3456 | } | |
3457 | return dot; | |
3458 | } | |
3459 | ||
3460 | /* Fix any .startof. or .sizeof. symbols. When the assemblers see the | |
3461 | operator .startof. (section_name), it produces an undefined symbol | |
3462 | .startof.section_name. Similarly, when it sees | |
3463 | .sizeof. (section_name), it produces an undefined symbol | |
3464 | .sizeof.section_name. For all the output sections, we look for | |
3465 | such symbols, and set them to the correct value. */ | |
3466 | ||
3467 | static void | |
3468 | lang_set_startof () | |
3469 | { | |
3470 | asection *s; | |
3471 | ||
3472 | if (link_info.relocateable) | |
3473 | return; | |
3474 | ||
3475 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
3476 | { | |
3477 | const char *secname; | |
3478 | char *buf; | |
3479 | struct bfd_link_hash_entry *h; | |
3480 | ||
3481 | secname = bfd_get_section_name (output_bfd, s); | |
3482 | buf = xmalloc (10 + strlen (secname)); | |
3483 | ||
3484 | sprintf (buf, ".startof.%s", secname); | |
3485 | h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true); | |
3486 | if (h != NULL && h->type == bfd_link_hash_undefined) | |
3487 | { | |
3488 | h->type = bfd_link_hash_defined; | |
3489 | h->u.def.value = bfd_get_section_vma (output_bfd, s); | |
3490 | h->u.def.section = bfd_abs_section_ptr; | |
3491 | } | |
3492 | ||
3493 | sprintf (buf, ".sizeof.%s", secname); | |
3494 | h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true); | |
3495 | if (h != NULL && h->type == bfd_link_hash_undefined) | |
3496 | { | |
b7a26f91 | 3497 | unsigned opb; |
d1778b88 | 3498 | |
b7a26f91 | 3499 | opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
d1778b88 | 3500 | ldfile_output_machine); |
252b5132 RH |
3501 | h->type = bfd_link_hash_defined; |
3502 | if (s->_cooked_size != 0) | |
4cbfc3ac | 3503 | h->u.def.value = s->_cooked_size / opb; |
252b5132 | 3504 | else |
4cbfc3ac | 3505 | h->u.def.value = s->_raw_size / opb; |
252b5132 RH |
3506 | h->u.def.section = bfd_abs_section_ptr; |
3507 | } | |
3508 | ||
3509 | free (buf); | |
3510 | } | |
3511 | } | |
3512 | ||
3513 | static void | |
3514 | lang_finish () | |
3515 | { | |
3516 | struct bfd_link_hash_entry *h; | |
3517 | boolean warn; | |
3518 | ||
3519 | if (link_info.relocateable || link_info.shared) | |
3520 | warn = false; | |
3521 | else | |
3522 | warn = true; | |
3523 | ||
3524 | if (entry_symbol == (char *) NULL) | |
3525 | { | |
3526 | /* No entry has been specified. Look for start, but don't warn | |
3527 | if we don't find it. */ | |
3528 | entry_symbol = "start"; | |
3529 | warn = false; | |
3530 | } | |
3531 | ||
3532 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol, false, false, true); | |
3533 | if (h != (struct bfd_link_hash_entry *) NULL | |
3534 | && (h->type == bfd_link_hash_defined | |
3535 | || h->type == bfd_link_hash_defweak) | |
3536 | && h->u.def.section->output_section != NULL) | |
3537 | { | |
3538 | bfd_vma val; | |
3539 | ||
3540 | val = (h->u.def.value | |
3541 | + bfd_get_section_vma (output_bfd, | |
3542 | h->u.def.section->output_section) | |
3543 | + h->u.def.section->output_offset); | |
3544 | if (! bfd_set_start_address (output_bfd, val)) | |
3545 | einfo (_("%P%F:%s: can't set start address\n"), entry_symbol); | |
3546 | } | |
3547 | else | |
3548 | { | |
3549 | bfd_vma val; | |
5f992e62 | 3550 | const char *send; |
252b5132 RH |
3551 | |
3552 | /* We couldn't find the entry symbol. Try parsing it as a | |
3553 | number. */ | |
3554 | val = bfd_scan_vma (entry_symbol, &send, 0); | |
3555 | if (*send == '\0') | |
3556 | { | |
3557 | if (! bfd_set_start_address (output_bfd, val)) | |
3558 | einfo (_("%P%F: can't set start address\n")); | |
3559 | } | |
3560 | else | |
3561 | { | |
3562 | asection *ts; | |
3563 | ||
3564 | /* Can't find the entry symbol, and it's not a number. Use | |
3565 | the first address in the text section. */ | |
1e281515 | 3566 | ts = bfd_get_section_by_name (output_bfd, entry_section); |
252b5132 RH |
3567 | if (ts != (asection *) NULL) |
3568 | { | |
3569 | if (warn) | |
3570 | einfo (_("%P: warning: cannot find entry symbol %s; defaulting to %V\n"), | |
3571 | entry_symbol, bfd_get_section_vma (output_bfd, ts)); | |
3572 | if (! bfd_set_start_address (output_bfd, | |
3573 | bfd_get_section_vma (output_bfd, | |
3574 | ts))) | |
3575 | einfo (_("%P%F: can't set start address\n")); | |
3576 | } | |
3577 | else | |
3578 | { | |
3579 | if (warn) | |
3580 | einfo (_("%P: warning: cannot find entry symbol %s; not setting start address\n"), | |
3581 | entry_symbol); | |
3582 | } | |
3583 | } | |
3584 | } | |
3585 | } | |
3586 | ||
3587 | /* This is a small function used when we want to ignore errors from | |
3588 | BFD. */ | |
3589 | ||
3590 | static void | |
3591 | #ifdef ANSI_PROTOTYPES | |
87f2a346 | 3592 | ignore_bfd_errors (const char *s ATTRIBUTE_UNUSED, ...) |
252b5132 RH |
3593 | #else |
3594 | ignore_bfd_errors (s) | |
87f2a346 | 3595 | const char *s ATTRIBUTE_UNUSED; |
252b5132 RH |
3596 | #endif |
3597 | { | |
3598 | /* Don't do anything. */ | |
3599 | } | |
3600 | ||
3601 | /* Check that the architecture of all the input files is compatible | |
3602 | with the output file. Also call the backend to let it do any | |
3603 | other checking that is needed. */ | |
3604 | ||
3605 | static void | |
3606 | lang_check () | |
3607 | { | |
3608 | lang_statement_union_type *file; | |
3609 | bfd *input_bfd; | |
5f992e62 | 3610 | const bfd_arch_info_type *compatible; |
252b5132 RH |
3611 | |
3612 | for (file = file_chain.head; | |
3613 | file != (lang_statement_union_type *) NULL; | |
3614 | file = file->input_statement.next) | |
3615 | { | |
3616 | input_bfd = file->input_statement.the_bfd; | |
30cba025 AM |
3617 | compatible = bfd_arch_get_compatible (input_bfd, output_bfd); |
3618 | ||
3619 | /* In general it is not possible to perform a relocatable | |
3620 | link between differing object formats when the input | |
3621 | file has relocations, because the relocations in the | |
3622 | input format may not have equivalent representations in | |
3623 | the output format (and besides BFD does not translate | |
3624 | relocs for other link purposes than a final link). */ | |
d35a52e2 | 3625 | if ((link_info.relocateable || link_info.emitrelocations) |
30cba025 | 3626 | && (compatible == NULL |
d35a52e2 | 3627 | || bfd_get_flavour (input_bfd) != bfd_get_flavour (output_bfd)) |
30cba025 AM |
3628 | && (bfd_get_file_flags (input_bfd) & HAS_RELOC) != 0) |
3629 | { | |
3630 | einfo (_("%P%F: Relocatable linking with relocations from format %s (%B) to format %s (%B) is not supported\n"), | |
3631 | bfd_get_target (input_bfd), input_bfd, | |
3632 | bfd_get_target (output_bfd), output_bfd); | |
3633 | /* einfo with %F exits. */ | |
3634 | } | |
3635 | ||
252b5132 RH |
3636 | if (compatible == NULL) |
3637 | { | |
3638 | if (command_line.warn_mismatch) | |
3639 | einfo (_("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n"), | |
3640 | bfd_printable_name (input_bfd), input_bfd, | |
3641 | bfd_printable_name (output_bfd)); | |
3642 | } | |
b9247304 | 3643 | else if (bfd_count_sections (input_bfd)) |
252b5132 | 3644 | { |
b9247304 | 3645 | /* If the input bfd has no contents, it shouldn't set the |
b7a26f91 | 3646 | private data of the output bfd. */ |
b9247304 | 3647 | |
252b5132 RH |
3648 | bfd_error_handler_type pfn = NULL; |
3649 | ||
3650 | /* If we aren't supposed to warn about mismatched input | |
3651 | files, temporarily set the BFD error handler to a | |
3652 | function which will do nothing. We still want to call | |
3653 | bfd_merge_private_bfd_data, since it may set up | |
3654 | information which is needed in the output file. */ | |
3655 | if (! command_line.warn_mismatch) | |
3656 | pfn = bfd_set_error_handler (ignore_bfd_errors); | |
3657 | if (! bfd_merge_private_bfd_data (input_bfd, output_bfd)) | |
3658 | { | |
3659 | if (command_line.warn_mismatch) | |
3660 | einfo (_("%E%X: failed to merge target specific data of file %B\n"), | |
3661 | input_bfd); | |
3662 | } | |
3663 | if (! command_line.warn_mismatch) | |
3664 | bfd_set_error_handler (pfn); | |
3665 | } | |
3666 | } | |
3667 | } | |
3668 | ||
3669 | /* Look through all the global common symbols and attach them to the | |
3670 | correct section. The -sort-common command line switch may be used | |
3671 | to roughly sort the entries by size. */ | |
3672 | ||
3673 | static void | |
3674 | lang_common () | |
3675 | { | |
4818e05f AM |
3676 | if (command_line.inhibit_common_definition) |
3677 | return; | |
252b5132 RH |
3678 | if (link_info.relocateable |
3679 | && ! command_line.force_common_definition) | |
3680 | return; | |
3681 | ||
3682 | if (! config.sort_common) | |
3683 | bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL); | |
3684 | else | |
3685 | { | |
3686 | int power; | |
3687 | ||
3688 | for (power = 4; power >= 0; power--) | |
3689 | bfd_link_hash_traverse (link_info.hash, lang_one_common, | |
3690 | (PTR) &power); | |
3691 | } | |
3692 | } | |
3693 | ||
3694 | /* Place one common symbol in the correct section. */ | |
3695 | ||
3696 | static boolean | |
3697 | lang_one_common (h, info) | |
3698 | struct bfd_link_hash_entry *h; | |
3699 | PTR info; | |
3700 | { | |
3701 | unsigned int power_of_two; | |
3702 | bfd_vma size; | |
3703 | asection *section; | |
5f992e62 AM |
3704 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
3705 | ldfile_output_machine); | |
252b5132 RH |
3706 | |
3707 | if (h->type != bfd_link_hash_common) | |
3708 | return true; | |
3709 | ||
3710 | size = h->u.c.size; | |
3711 | power_of_two = h->u.c.p->alignment_power; | |
3712 | ||
3713 | if (config.sort_common | |
3714 | && power_of_two < (unsigned int) *(int *) info) | |
3715 | return true; | |
3716 | ||
3717 | section = h->u.c.p->section; | |
3718 | ||
3719 | /* Increase the size of the section. */ | |
4cbfc3ac TW |
3720 | section->_cooked_size = ALIGN_N ((section->_cooked_size + opb - 1) / opb, |
3721 | (bfd_size_type) (1 << power_of_two)) * opb; | |
252b5132 RH |
3722 | |
3723 | /* Adjust the alignment if necessary. */ | |
3724 | if (power_of_two > section->alignment_power) | |
3725 | section->alignment_power = power_of_two; | |
3726 | ||
3727 | /* Change the symbol from common to defined. */ | |
3728 | h->type = bfd_link_hash_defined; | |
3729 | h->u.def.section = section; | |
3730 | h->u.def.value = section->_cooked_size; | |
3731 | ||
3732 | /* Increase the size of the section. */ | |
3733 | section->_cooked_size += size; | |
3734 | ||
3735 | /* Make sure the section is allocated in memory, and make sure that | |
3736 | it is no longer a common section. */ | |
3737 | section->flags |= SEC_ALLOC; | |
08da4cac | 3738 | section->flags &= ~SEC_IS_COMMON; |
252b5132 RH |
3739 | |
3740 | if (config.map_file != NULL) | |
3741 | { | |
3742 | static boolean header_printed; | |
3743 | int len; | |
3744 | char *name; | |
3745 | char buf[50]; | |
3746 | ||
3747 | if (! header_printed) | |
3748 | { | |
3749 | minfo (_("\nAllocating common symbols\n")); | |
3750 | minfo (_("Common symbol size file\n\n")); | |
3751 | header_printed = true; | |
3752 | } | |
3753 | ||
3754 | name = demangle (h->root.string); | |
3755 | minfo ("%s", name); | |
3756 | len = strlen (name); | |
3757 | free (name); | |
3758 | ||
3759 | if (len >= 19) | |
3760 | { | |
3761 | print_nl (); | |
3762 | len = 0; | |
3763 | } | |
3764 | while (len < 20) | |
3765 | { | |
3766 | print_space (); | |
3767 | ++len; | |
3768 | } | |
3769 | ||
3770 | minfo ("0x"); | |
3771 | if (size <= 0xffffffff) | |
3772 | sprintf (buf, "%lx", (unsigned long) size); | |
3773 | else | |
3774 | sprintf_vma (buf, size); | |
3775 | minfo ("%s", buf); | |
3776 | len = strlen (buf); | |
3777 | ||
3778 | while (len < 16) | |
3779 | { | |
3780 | print_space (); | |
3781 | ++len; | |
3782 | } | |
3783 | ||
3784 | minfo ("%B\n", section->owner); | |
3785 | } | |
3786 | ||
3787 | return true; | |
3788 | } | |
3789 | ||
08da4cac KH |
3790 | /* Run through the input files and ensure that every input section has |
3791 | somewhere to go. If one is found without a destination then create | |
3792 | an input request and place it into the statement tree. */ | |
252b5132 RH |
3793 | |
3794 | static void | |
3795 | lang_place_orphans () | |
3796 | { | |
e50d8076 | 3797 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
252b5132 RH |
3798 | { |
3799 | asection *s; | |
3800 | ||
3801 | for (s = file->the_bfd->sections; | |
3802 | s != (asection *) NULL; | |
3803 | s = s->next) | |
3804 | { | |
3805 | if (s->output_section == (asection *) NULL) | |
3806 | { | |
3807 | /* This section of the file is not attatched, root | |
08da4cac | 3808 | around for a sensible place for it to go. */ |
252b5132 RH |
3809 | |
3810 | if (file->just_syms_flag) | |
3811 | { | |
c2c01aa7 | 3812 | abort (); |
252b5132 RH |
3813 | } |
3814 | else if (strcmp (s->name, "COMMON") == 0) | |
3815 | { | |
3816 | /* This is a lonely common section which must have | |
3817 | come from an archive. We attach to the section | |
3818 | with the wildcard. */ | |
3819 | if (! link_info.relocateable | |
3820 | || command_line.force_common_definition) | |
3821 | { | |
3822 | if (default_common_section == NULL) | |
3823 | { | |
3824 | #if 0 | |
3825 | /* This message happens when using the | |
3826 | svr3.ifile linker script, so I have | |
3827 | disabled it. */ | |
3828 | info_msg (_("%P: no [COMMON] command, defaulting to .bss\n")); | |
3829 | #endif | |
3830 | default_common_section = | |
3831 | lang_output_section_statement_lookup (".bss"); | |
3832 | ||
3833 | } | |
39dcfe18 AM |
3834 | lang_add_section (&default_common_section->children, s, |
3835 | default_common_section, file); | |
252b5132 RH |
3836 | } |
3837 | } | |
3838 | else if (ldemul_place_orphan (file, s)) | |
3839 | ; | |
3840 | else | |
3841 | { | |
39dcfe18 | 3842 | lang_output_section_statement_type *os; |
252b5132 | 3843 | |
39dcfe18 AM |
3844 | os = lang_output_section_statement_lookup (s->name); |
3845 | lang_add_section (&os->children, s, os, file); | |
252b5132 RH |
3846 | } |
3847 | } | |
3848 | } | |
3849 | } | |
3850 | } | |
3851 | ||
252b5132 | 3852 | void |
aa8804e4 | 3853 | lang_set_flags (ptr, flags, invert) |
252b5132 | 3854 | lang_memory_region_type *ptr; |
5f992e62 | 3855 | const char *flags; |
aa8804e4 | 3856 | int invert; |
252b5132 | 3857 | { |
aa8804e4 | 3858 | flagword *ptr_flags; |
252b5132 | 3859 | |
aa8804e4 | 3860 | ptr_flags = invert ? &ptr->not_flags : &ptr->flags; |
252b5132 RH |
3861 | while (*flags) |
3862 | { | |
3863 | switch (*flags) | |
3864 | { | |
252b5132 RH |
3865 | case 'A': case 'a': |
3866 | *ptr_flags |= SEC_ALLOC; | |
3867 | break; | |
3868 | ||
3869 | case 'R': case 'r': | |
3870 | *ptr_flags |= SEC_READONLY; | |
3871 | break; | |
3872 | ||
3873 | case 'W': case 'w': | |
3874 | *ptr_flags |= SEC_DATA; | |
3875 | break; | |
3876 | ||
3877 | case 'X': case 'x': | |
3878 | *ptr_flags |= SEC_CODE; | |
3879 | break; | |
3880 | ||
3881 | case 'L': case 'l': | |
3882 | case 'I': case 'i': | |
3883 | *ptr_flags |= SEC_LOAD; | |
3884 | break; | |
3885 | ||
3886 | default: | |
3887 | einfo (_("%P%F: invalid syntax in flags\n")); | |
3888 | break; | |
3889 | } | |
3890 | flags++; | |
3891 | } | |
3892 | } | |
3893 | ||
3894 | /* Call a function on each input file. This function will be called | |
3895 | on an archive, but not on the elements. */ | |
3896 | ||
3897 | void | |
3898 | lang_for_each_input_file (func) | |
3899 | void (*func) PARAMS ((lang_input_statement_type *)); | |
3900 | { | |
3901 | lang_input_statement_type *f; | |
3902 | ||
3903 | for (f = (lang_input_statement_type *) input_file_chain.head; | |
3904 | f != NULL; | |
3905 | f = (lang_input_statement_type *) f->next_real_file) | |
3906 | func (f); | |
3907 | } | |
3908 | ||
3909 | /* Call a function on each file. The function will be called on all | |
3910 | the elements of an archive which are included in the link, but will | |
3911 | not be called on the archive file itself. */ | |
3912 | ||
3913 | void | |
3914 | lang_for_each_file (func) | |
3915 | void (*func) PARAMS ((lang_input_statement_type *)); | |
3916 | { | |
e50d8076 | 3917 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 RH |
3918 | { |
3919 | func (f); | |
3920 | } | |
3921 | } | |
3922 | ||
3923 | #if 0 | |
3924 | ||
3925 | /* Not used. */ | |
3926 | ||
3927 | void | |
3928 | lang_for_each_input_section (func) | |
08da4cac | 3929 | void (*func) PARAMS ((bfd *ab, asection *as)); |
252b5132 | 3930 | { |
e50d8076 | 3931 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 | 3932 | { |
08da4cac | 3933 | asection *s; |
252b5132 RH |
3934 | |
3935 | for (s = f->the_bfd->sections; | |
3936 | s != (asection *) NULL; | |
3937 | s = s->next) | |
3938 | { | |
3939 | func (f->the_bfd, s); | |
3940 | } | |
3941 | } | |
3942 | } | |
3943 | ||
3944 | #endif | |
3945 | ||
3946 | void | |
3947 | ldlang_add_file (entry) | |
08da4cac | 3948 | lang_input_statement_type *entry; |
252b5132 RH |
3949 | { |
3950 | bfd **pp; | |
3951 | ||
3952 | lang_statement_append (&file_chain, | |
3953 | (lang_statement_union_type *) entry, | |
3954 | &entry->next); | |
3955 | ||
3956 | /* The BFD linker needs to have a list of all input BFDs involved in | |
3957 | a link. */ | |
3958 | ASSERT (entry->the_bfd->link_next == (bfd *) NULL); | |
3959 | ASSERT (entry->the_bfd != output_bfd); | |
3960 | for (pp = &link_info.input_bfds; | |
3961 | *pp != (bfd *) NULL; | |
3962 | pp = &(*pp)->link_next) | |
3963 | ; | |
3964 | *pp = entry->the_bfd; | |
3965 | entry->the_bfd->usrdata = (PTR) entry; | |
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 | ||
3978 | bfd_map_over_sections (entry->the_bfd, section_already_linked, (PTR) entry); | |
3979 | } | |
3980 | ||
3981 | void | |
3982 | lang_add_output (name, from_script) | |
5f992e62 | 3983 | const char *name; |
252b5132 RH |
3984 | int from_script; |
3985 | { | |
3986 | /* Make -o on command line override OUTPUT in script. */ | |
3987 | if (had_output_filename == false || !from_script) | |
3988 | { | |
3989 | output_filename = name; | |
3990 | had_output_filename = true; | |
3991 | } | |
3992 | } | |
3993 | ||
252b5132 RH |
3994 | static lang_output_section_statement_type *current_section; |
3995 | ||
3996 | static int | |
3997 | topower (x) | |
3998 | int x; | |
3999 | { | |
4000 | unsigned int i = 1; | |
4001 | int l; | |
4002 | ||
4003 | if (x < 0) | |
4004 | return -1; | |
4005 | ||
5f992e62 | 4006 | for (l = 0; l < 32; l++) |
252b5132 RH |
4007 | { |
4008 | if (i >= (unsigned int) x) | |
4009 | return l; | |
4010 | i <<= 1; | |
4011 | } | |
4012 | ||
4013 | return 0; | |
4014 | } | |
4015 | ||
aea4bd9d | 4016 | lang_output_section_statement_type * |
252b5132 RH |
4017 | lang_enter_output_section_statement (output_section_statement_name, |
4018 | address_exp, sectype, block_value, | |
4019 | align, subalign, ebase) | |
4020 | const char *output_section_statement_name; | |
08da4cac | 4021 | etree_type *address_exp; |
252b5132 RH |
4022 | enum section_type sectype; |
4023 | bfd_vma block_value; | |
4024 | etree_type *align; | |
4025 | etree_type *subalign; | |
4026 | etree_type *ebase; | |
4027 | { | |
4028 | lang_output_section_statement_type *os; | |
4029 | ||
4030 | current_section = | |
4031 | os = | |
4032 | lang_output_section_statement_lookup (output_section_statement_name); | |
4033 | ||
08da4cac KH |
4034 | /* Add this statement to tree. */ |
4035 | #if 0 | |
4036 | add_statement (lang_output_section_statement_enum, | |
4037 | output_section_statement); | |
4038 | #endif | |
4039 | /* Make next things chain into subchain of this. */ | |
252b5132 | 4040 | |
08da4cac KH |
4041 | if (os->addr_tree == (etree_type *) NULL) |
4042 | { | |
4043 | os->addr_tree = address_exp; | |
4044 | } | |
252b5132 RH |
4045 | os->sectype = sectype; |
4046 | if (sectype != noload_section) | |
4047 | os->flags = SEC_NO_FLAGS; | |
4048 | else | |
4049 | os->flags = SEC_NEVER_LOAD; | |
4050 | os->block_value = block_value ? block_value : 1; | |
4051 | stat_ptr = &os->children; | |
4052 | ||
08da4cac KH |
4053 | os->subsection_alignment = |
4054 | topower (exp_get_value_int (subalign, -1, "subsection alignment", 0)); | |
4055 | os->section_alignment = | |
4056 | topower (exp_get_value_int (align, -1, "section alignment", 0)); | |
252b5132 RH |
4057 | |
4058 | os->load_base = ebase; | |
aea4bd9d | 4059 | return os; |
252b5132 RH |
4060 | } |
4061 | ||
252b5132 RH |
4062 | void |
4063 | lang_final () | |
4064 | { | |
4065 | lang_output_statement_type *new = | |
4066 | new_stat (lang_output_statement, stat_ptr); | |
4067 | ||
4068 | new->name = output_filename; | |
4069 | } | |
4070 | ||
08da4cac KH |
4071 | /* Reset the current counters in the regions. */ |
4072 | ||
e3dc8847 HPN |
4073 | void |
4074 | lang_reset_memory_regions () | |
252b5132 RH |
4075 | { |
4076 | lang_memory_region_type *p = lang_memory_region_list; | |
b3327aad | 4077 | asection *o; |
252b5132 RH |
4078 | |
4079 | for (p = lang_memory_region_list; | |
4080 | p != (lang_memory_region_type *) NULL; | |
4081 | p = p->next) | |
4082 | { | |
4083 | p->old_length = (bfd_size_type) (p->current - p->origin); | |
4084 | p->current = p->origin; | |
4085 | } | |
b3327aad AM |
4086 | |
4087 | for (o = output_bfd->sections; o != NULL; o = o->next) | |
4088 | o->_raw_size = 0; | |
252b5132 RH |
4089 | } |
4090 | ||
b6bf44ba AM |
4091 | /* If the wild pattern was marked KEEP, the member sections |
4092 | should be as well. */ | |
252b5132 RH |
4093 | |
4094 | static void | |
b6bf44ba | 4095 | gc_section_callback (ptr, sec, section, file, data) |
252b5132 | 4096 | lang_wild_statement_type *ptr; |
b6bf44ba | 4097 | struct wildcard_list *sec ATTRIBUTE_UNUSED; |
4dec4d4e | 4098 | asection *section; |
87f2a346 | 4099 | lang_input_statement_type *file ATTRIBUTE_UNUSED; |
5f992e62 | 4100 | PTR data ATTRIBUTE_UNUSED; |
252b5132 | 4101 | { |
4dec4d4e RH |
4102 | if (ptr->keep_sections) |
4103 | section->flags |= SEC_KEEP; | |
252b5132 RH |
4104 | } |
4105 | ||
b6bf44ba | 4106 | /* Handle a wild statement, marking it against GC. */ |
252b5132 RH |
4107 | |
4108 | static void | |
b6bf44ba | 4109 | lang_gc_wild (s) |
252b5132 | 4110 | lang_wild_statement_type *s; |
252b5132 | 4111 | { |
b6bf44ba | 4112 | walk_wild (s, gc_section_callback, NULL); |
252b5132 RH |
4113 | } |
4114 | ||
4115 | /* Iterate over sections marking them against GC. */ | |
4116 | ||
4117 | static void | |
4118 | lang_gc_sections_1 (s) | |
08da4cac | 4119 | lang_statement_union_type *s; |
252b5132 | 4120 | { |
bba1a0c0 | 4121 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
4122 | { |
4123 | switch (s->header.type) | |
4124 | { | |
4125 | case lang_wild_statement_enum: | |
b6bf44ba | 4126 | lang_gc_wild (&s->wild_statement); |
abc6ab0a | 4127 | break; |
252b5132 RH |
4128 | case lang_constructors_statement_enum: |
4129 | lang_gc_sections_1 (constructor_list.head); | |
4130 | break; | |
4131 | case lang_output_section_statement_enum: | |
4132 | lang_gc_sections_1 (s->output_section_statement.children.head); | |
4133 | break; | |
4134 | case lang_group_statement_enum: | |
4135 | lang_gc_sections_1 (s->group_statement.children.head); | |
4136 | break; | |
4137 | default: | |
4138 | break; | |
4139 | } | |
4140 | } | |
4141 | } | |
4142 | ||
4143 | static void | |
4144 | lang_gc_sections () | |
4145 | { | |
4146 | struct bfd_link_hash_entry *h; | |
4147 | ldlang_undef_chain_list_type *ulist, fake_list_start; | |
4148 | ||
4149 | /* Keep all sections so marked in the link script. */ | |
4150 | ||
4151 | lang_gc_sections_1 (statement_list.head); | |
4152 | ||
4153 | /* Keep all sections containing symbols undefined on the command-line. | |
4154 | Handle the entry symbol at the same time. */ | |
5f992e62 | 4155 | |
7c83b342 DE |
4156 | if (entry_symbol != NULL) |
4157 | { | |
4158 | fake_list_start.next = ldlang_undef_chain_list_head; | |
4159 | fake_list_start.name = (char *) entry_symbol; | |
4160 | ulist = &fake_list_start; | |
4161 | } | |
252b5132 | 4162 | else |
7c83b342 | 4163 | ulist = ldlang_undef_chain_list_head; |
252b5132 | 4164 | |
7c83b342 | 4165 | for (; ulist; ulist = ulist->next) |
252b5132 | 4166 | { |
5f992e62 | 4167 | h = bfd_link_hash_lookup (link_info.hash, ulist->name, |
252b5132 RH |
4168 | false, false, false); |
4169 | ||
4170 | if (h != (struct bfd_link_hash_entry *) NULL | |
08da4cac KH |
4171 | && (h->type == bfd_link_hash_defined |
4172 | || h->type == bfd_link_hash_defweak) | |
252b5132 RH |
4173 | && ! bfd_is_abs_section (h->u.def.section)) |
4174 | { | |
4175 | h->u.def.section->flags |= SEC_KEEP; | |
4176 | } | |
4177 | } | |
4178 | ||
4179 | bfd_gc_sections (output_bfd, &link_info); | |
4180 | } | |
4181 | ||
4182 | void | |
4183 | lang_process () | |
4184 | { | |
4185 | lang_reasonable_defaults (); | |
4186 | current_target = default_target; | |
4187 | ||
08da4cac KH |
4188 | /* Open the output file. */ |
4189 | lang_for_each_statement (ldlang_open_output); | |
252b5132 RH |
4190 | |
4191 | ldemul_create_output_section_statements (); | |
4192 | ||
08da4cac | 4193 | /* Add to the hash table all undefineds on the command line. */ |
252b5132 RH |
4194 | lang_place_undefineds (); |
4195 | ||
9503fd87 ILT |
4196 | already_linked_table_init (); |
4197 | ||
08da4cac | 4198 | /* Create a bfd for each input file. */ |
252b5132 RH |
4199 | current_target = default_target; |
4200 | open_input_bfds (statement_list.head, false); | |
4201 | ||
4202 | ldemul_after_open (); | |
4203 | ||
9503fd87 ILT |
4204 | already_linked_table_free (); |
4205 | ||
252b5132 RH |
4206 | /* Make sure that we're not mixing architectures. We call this |
4207 | after all the input files have been opened, but before we do any | |
4208 | other processing, so that any operations merge_private_bfd_data | |
4209 | does on the output file will be known during the rest of the | |
4210 | link. */ | |
4211 | lang_check (); | |
4212 | ||
4213 | /* Handle .exports instead of a version script if we're told to do so. */ | |
4214 | if (command_line.version_exports_section) | |
4215 | lang_do_version_exports_section (); | |
4216 | ||
4217 | /* Build all sets based on the information gathered from the input | |
4218 | files. */ | |
4219 | ldctor_build_sets (); | |
4220 | ||
4221 | /* Remove unreferenced sections if asked to. */ | |
4222 | if (command_line.gc_sections) | |
4223 | lang_gc_sections (); | |
4224 | ||
8550eb6e JJ |
4225 | /* If there were any SEC_MERGE sections, finish their merging, so that |
4226 | section sizes can be computed. This has to be done after GC of sections, | |
4227 | so that GCed sections are not merged, but before assigning output | |
4228 | sections, since removing whole input sections is hard then. */ | |
4229 | bfd_merge_sections (output_bfd, &link_info); | |
4230 | ||
08da4cac | 4231 | /* Size up the common data. */ |
252b5132 RH |
4232 | lang_common (); |
4233 | ||
4234 | /* Run through the contours of the script and attach input sections | |
08da4cac | 4235 | to the correct output sections. */ |
252b5132 RH |
4236 | map_input_to_output_sections (statement_list.head, (char *) NULL, |
4237 | (lang_output_section_statement_type *) NULL); | |
4238 | ||
08da4cac | 4239 | /* Find any sections not attached explicitly and handle them. */ |
252b5132 RH |
4240 | lang_place_orphans (); |
4241 | ||
862120bd AM |
4242 | if (! link_info.relocateable) |
4243 | { | |
4244 | /* Look for a text section and set the readonly attribute in it. */ | |
4245 | asection *found = bfd_get_section_by_name (output_bfd, ".text"); | |
4246 | ||
4247 | if (found != (asection *) NULL) | |
4248 | { | |
4249 | if (config.text_read_only) | |
4250 | found->flags |= SEC_READONLY; | |
4251 | else | |
4252 | found->flags &= ~SEC_READONLY; | |
4253 | } | |
4254 | } | |
4255 | ||
4256 | /* Do anything special before sizing sections. This is where ELF | |
4257 | and other back-ends size dynamic sections. */ | |
252b5132 RH |
4258 | ldemul_before_allocation (); |
4259 | ||
4260 | /* We must record the program headers before we try to fix the | |
4261 | section positions, since they will affect SIZEOF_HEADERS. */ | |
4262 | lang_record_phdrs (); | |
4263 | ||
b3327aad AM |
4264 | /* Size up the sections. */ |
4265 | lang_size_sections (statement_list.head, | |
4266 | abs_output_section, | |
4267 | &statement_list.head, 0, (bfd_vma) 0, NULL); | |
4268 | ||
08da4cac | 4269 | /* Now run around and relax if we can. */ |
252b5132 RH |
4270 | if (command_line.relax) |
4271 | { | |
252b5132 | 4272 | /* Keep relaxing until bfd_relax_section gives up. */ |
b3327aad AM |
4273 | boolean relax_again; |
4274 | ||
252b5132 RH |
4275 | do |
4276 | { | |
e3dc8847 | 4277 | lang_reset_memory_regions (); |
252b5132 RH |
4278 | |
4279 | relax_again = false; | |
4280 | ||
4281 | /* Note: pe-dll.c does something like this also. If you find | |
4282 | you need to change this code, you probably need to change | |
08da4cac | 4283 | pe-dll.c also. DJ */ |
252b5132 RH |
4284 | |
4285 | /* Do all the assignments with our current guesses as to | |
4286 | section sizes. */ | |
4287 | lang_do_assignments (statement_list.head, | |
4288 | abs_output_section, | |
2c382fb6 | 4289 | (fill_type *) 0, (bfd_vma) 0); |
252b5132 RH |
4290 | |
4291 | /* Perform another relax pass - this time we know where the | |
0d6d936f | 4292 | globals are, so can make a better guess. */ |
252b5132 RH |
4293 | lang_size_sections (statement_list.head, |
4294 | abs_output_section, | |
0d6d936f | 4295 | &statement_list.head, 0, (bfd_vma) 0, |
b3327aad | 4296 | &relax_again); |
252b5132 RH |
4297 | } |
4298 | while (relax_again); | |
4299 | } | |
252b5132 RH |
4300 | |
4301 | /* See if anything special should be done now we know how big | |
4302 | everything is. */ | |
4303 | ldemul_after_allocation (); | |
4304 | ||
4305 | /* Fix any .startof. or .sizeof. symbols. */ | |
4306 | lang_set_startof (); | |
4307 | ||
08da4cac KH |
4308 | /* Do all the assignments, now that we know the final resting places |
4309 | of all the symbols. */ | |
252b5132 RH |
4310 | |
4311 | lang_do_assignments (statement_list.head, | |
4312 | abs_output_section, | |
2c382fb6 | 4313 | (fill_type *) 0, (bfd_vma) 0); |
252b5132 RH |
4314 | |
4315 | /* Make sure that the section addresses make sense. */ | |
4316 | if (! link_info.relocateable | |
4317 | && command_line.check_section_addresses) | |
4318 | lang_check_section_addresses (); | |
5f992e62 | 4319 | |
08da4cac | 4320 | /* Final stuffs. */ |
252b5132 RH |
4321 | |
4322 | ldemul_finish (); | |
4323 | lang_finish (); | |
4324 | } | |
4325 | ||
4326 | /* EXPORTED TO YACC */ | |
4327 | ||
4328 | void | |
b6bf44ba AM |
4329 | lang_add_wild (filespec, section_list, keep_sections) |
4330 | struct wildcard_spec *filespec; | |
4331 | struct wildcard_list *section_list; | |
252b5132 | 4332 | boolean keep_sections; |
252b5132 | 4333 | { |
b6bf44ba AM |
4334 | struct wildcard_list *curr, *next; |
4335 | lang_wild_statement_type *new; | |
4336 | ||
4337 | /* Reverse the list as the parser puts it back to front. */ | |
4338 | for (curr = section_list, section_list = NULL; | |
4339 | curr != NULL; | |
4340 | section_list = curr, curr = next) | |
4341 | { | |
4342 | if (curr->spec.name != NULL && strcmp (curr->spec.name, "COMMON") == 0) | |
4343 | placed_commons = true; | |
252b5132 | 4344 | |
b6bf44ba AM |
4345 | next = curr->next; |
4346 | curr->next = section_list; | |
4347 | } | |
4348 | ||
4349 | if (filespec != NULL && filespec->name != NULL) | |
252b5132 | 4350 | { |
b6bf44ba AM |
4351 | if (strcmp (filespec->name, "*") == 0) |
4352 | filespec->name = NULL; | |
4353 | else if (! wildcardp (filespec->name)) | |
4354 | lang_has_input_file = true; | |
252b5132 | 4355 | } |
b6bf44ba AM |
4356 | |
4357 | new = new_stat (lang_wild_statement, stat_ptr); | |
4358 | new->filename = NULL; | |
4359 | new->filenames_sorted = false; | |
4360 | if (filespec != NULL) | |
252b5132 | 4361 | { |
b6bf44ba AM |
4362 | new->filename = filespec->name; |
4363 | new->filenames_sorted = filespec->sorted; | |
252b5132 | 4364 | } |
b6bf44ba | 4365 | new->section_list = section_list; |
252b5132 | 4366 | new->keep_sections = keep_sections; |
252b5132 RH |
4367 | lang_list_init (&new->children); |
4368 | } | |
4369 | ||
4370 | void | |
4371 | lang_section_start (name, address) | |
5f992e62 | 4372 | const char *name; |
08da4cac | 4373 | etree_type *address; |
252b5132 | 4374 | { |
d1778b88 | 4375 | lang_address_statement_type *ad; |
252b5132 | 4376 | |
d1778b88 | 4377 | ad = new_stat (lang_address_statement, stat_ptr); |
252b5132 RH |
4378 | ad->section_name = name; |
4379 | ad->address = address; | |
4380 | } | |
4381 | ||
4382 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called | |
4383 | because of a -e argument on the command line, or zero if this is | |
4384 | called by ENTRY in a linker script. Command line arguments take | |
4385 | precedence. */ | |
4386 | ||
4387 | void | |
4388 | lang_add_entry (name, cmdline) | |
5f992e62 | 4389 | const char *name; |
252b5132 RH |
4390 | boolean cmdline; |
4391 | { | |
4392 | if (entry_symbol == NULL | |
4393 | || cmdline | |
4394 | || ! entry_from_cmdline) | |
4395 | { | |
4396 | entry_symbol = name; | |
4397 | entry_from_cmdline = cmdline; | |
4398 | } | |
4399 | } | |
4400 | ||
4401 | void | |
4402 | lang_add_target (name) | |
5f992e62 | 4403 | const char *name; |
252b5132 RH |
4404 | { |
4405 | lang_target_statement_type *new = new_stat (lang_target_statement, | |
4406 | stat_ptr); | |
4407 | ||
4408 | new->target = name; | |
4409 | ||
4410 | } | |
4411 | ||
4412 | void | |
4413 | lang_add_map (name) | |
5f992e62 | 4414 | const char *name; |
252b5132 RH |
4415 | { |
4416 | while (*name) | |
4417 | { | |
4418 | switch (*name) | |
4419 | { | |
08da4cac | 4420 | case 'F': |
252b5132 RH |
4421 | map_option_f = true; |
4422 | break; | |
4423 | } | |
4424 | name++; | |
4425 | } | |
4426 | } | |
4427 | ||
4428 | void | |
2c382fb6 AM |
4429 | lang_add_fill (fill) |
4430 | fill_type *fill; | |
252b5132 RH |
4431 | { |
4432 | lang_fill_statement_type *new = new_stat (lang_fill_statement, | |
4433 | stat_ptr); | |
4434 | ||
2c382fb6 | 4435 | new->fill = fill; |
252b5132 RH |
4436 | } |
4437 | ||
4438 | void | |
4439 | lang_add_data (type, exp) | |
4440 | int type; | |
4441 | union etree_union *exp; | |
4442 | { | |
4443 | ||
4444 | lang_data_statement_type *new = new_stat (lang_data_statement, | |
4445 | stat_ptr); | |
4446 | ||
4447 | new->exp = exp; | |
4448 | new->type = type; | |
4449 | ||
4450 | } | |
4451 | ||
4452 | /* Create a new reloc statement. RELOC is the BFD relocation type to | |
4453 | generate. HOWTO is the corresponding howto structure (we could | |
4454 | look this up, but the caller has already done so). SECTION is the | |
4455 | section to generate a reloc against, or NAME is the name of the | |
4456 | symbol to generate a reloc against. Exactly one of SECTION and | |
4457 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
4458 | ||
4459 | void | |
4460 | lang_add_reloc (reloc, howto, section, name, addend) | |
4461 | bfd_reloc_code_real_type reloc; | |
4462 | reloc_howto_type *howto; | |
4463 | asection *section; | |
4464 | const char *name; | |
4465 | union etree_union *addend; | |
4466 | { | |
4467 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
5f992e62 | 4468 | |
252b5132 RH |
4469 | p->reloc = reloc; |
4470 | p->howto = howto; | |
4471 | p->section = section; | |
4472 | p->name = name; | |
4473 | p->addend_exp = addend; | |
4474 | ||
4475 | p->addend_value = 0; | |
4476 | p->output_section = NULL; | |
4477 | p->output_vma = 0; | |
4478 | } | |
4479 | ||
4480 | lang_assignment_statement_type * | |
4481 | lang_add_assignment (exp) | |
08da4cac | 4482 | etree_type *exp; |
252b5132 RH |
4483 | { |
4484 | lang_assignment_statement_type *new = new_stat (lang_assignment_statement, | |
4485 | stat_ptr); | |
4486 | ||
4487 | new->exp = exp; | |
4488 | return new; | |
4489 | } | |
4490 | ||
4491 | void | |
4492 | lang_add_attribute (attribute) | |
4493 | enum statement_enum attribute; | |
4494 | { | |
4495 | new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr); | |
4496 | } | |
4497 | ||
4498 | void | |
4499 | lang_startup (name) | |
5f992e62 | 4500 | const char *name; |
252b5132 RH |
4501 | { |
4502 | if (startup_file != (char *) NULL) | |
4503 | { | |
4504 | einfo (_("%P%Fmultiple STARTUP files\n")); | |
4505 | } | |
4506 | first_file->filename = name; | |
4507 | first_file->local_sym_name = name; | |
4508 | first_file->real = true; | |
4509 | ||
4510 | startup_file = name; | |
4511 | } | |
4512 | ||
4513 | void | |
4514 | lang_float (maybe) | |
4515 | boolean maybe; | |
4516 | { | |
4517 | lang_float_flag = maybe; | |
4518 | } | |
4519 | ||
4520 | void | |
562d3460 | 4521 | lang_leave_output_section_statement (fill, memspec, phdrs, lma_memspec) |
2c382fb6 | 4522 | fill_type *fill; |
252b5132 RH |
4523 | const char *memspec; |
4524 | struct lang_output_section_phdr_list *phdrs; | |
562d3460 | 4525 | const char *lma_memspec; |
252b5132 RH |
4526 | { |
4527 | current_section->fill = fill; | |
4528 | current_section->region = lang_memory_region_lookup (memspec); | |
9f88b410 RS |
4529 | current_section->lma_region = lang_memory_region_lookup (lma_memspec); |
4530 | ||
4531 | /* If no runtime region has been given, but the load region has | |
4532 | been, use the load region. */ | |
4533 | if (current_section->lma_region != 0 && strcmp (memspec, "*default*") == 0) | |
4534 | current_section->region = current_section->lma_region; | |
4535 | ||
252b5132 RH |
4536 | current_section->phdrs = phdrs; |
4537 | stat_ptr = &statement_list; | |
4538 | } | |
4539 | ||
08da4cac KH |
4540 | /* Create an absolute symbol with the given name with the value of the |
4541 | address of first byte of the section named. | |
4542 | ||
4543 | If the symbol already exists, then do nothing. */ | |
252b5132 | 4544 | |
252b5132 RH |
4545 | void |
4546 | lang_abs_symbol_at_beginning_of (secname, name) | |
4547 | const char *secname; | |
4548 | const char *name; | |
4549 | { | |
4550 | struct bfd_link_hash_entry *h; | |
4551 | ||
4552 | h = bfd_link_hash_lookup (link_info.hash, name, true, true, true); | |
4553 | if (h == (struct bfd_link_hash_entry *) NULL) | |
4554 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
4555 | ||
4556 | if (h->type == bfd_link_hash_new | |
4557 | || h->type == bfd_link_hash_undefined) | |
4558 | { | |
4559 | asection *sec; | |
4560 | ||
4561 | h->type = bfd_link_hash_defined; | |
4562 | ||
4563 | sec = bfd_get_section_by_name (output_bfd, secname); | |
4564 | if (sec == (asection *) NULL) | |
4565 | h->u.def.value = 0; | |
4566 | else | |
4567 | h->u.def.value = bfd_get_section_vma (output_bfd, sec); | |
4568 | ||
4569 | h->u.def.section = bfd_abs_section_ptr; | |
4570 | } | |
4571 | } | |
4572 | ||
08da4cac KH |
4573 | /* Create an absolute symbol with the given name with the value of the |
4574 | address of the first byte after the end of the section named. | |
4575 | ||
4576 | If the symbol already exists, then do nothing. */ | |
252b5132 | 4577 | |
252b5132 RH |
4578 | void |
4579 | lang_abs_symbol_at_end_of (secname, name) | |
4580 | const char *secname; | |
4581 | const char *name; | |
4582 | { | |
4583 | struct bfd_link_hash_entry *h; | |
4584 | ||
4585 | h = bfd_link_hash_lookup (link_info.hash, name, true, true, true); | |
4586 | if (h == (struct bfd_link_hash_entry *) NULL) | |
4587 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
4588 | ||
4589 | if (h->type == bfd_link_hash_new | |
4590 | || h->type == bfd_link_hash_undefined) | |
4591 | { | |
4592 | asection *sec; | |
4593 | ||
4594 | h->type = bfd_link_hash_defined; | |
4595 | ||
4596 | sec = bfd_get_section_by_name (output_bfd, secname); | |
4597 | if (sec == (asection *) NULL) | |
4598 | h->u.def.value = 0; | |
4599 | else | |
4600 | h->u.def.value = (bfd_get_section_vma (output_bfd, sec) | |
4cbfc3ac TW |
4601 | + bfd_section_size (output_bfd, sec) / |
4602 | bfd_octets_per_byte (output_bfd)); | |
252b5132 RH |
4603 | |
4604 | h->u.def.section = bfd_abs_section_ptr; | |
4605 | } | |
4606 | } | |
4607 | ||
4608 | void | |
4609 | lang_statement_append (list, element, field) | |
08da4cac KH |
4610 | lang_statement_list_type *list; |
4611 | lang_statement_union_type *element; | |
4612 | lang_statement_union_type **field; | |
252b5132 RH |
4613 | { |
4614 | *(list->tail) = element; | |
4615 | list->tail = field; | |
4616 | } | |
4617 | ||
4618 | /* Set the output format type. -oformat overrides scripts. */ | |
4619 | ||
4620 | void | |
4621 | lang_add_output_format (format, big, little, from_script) | |
4622 | const char *format; | |
4623 | const char *big; | |
4624 | const char *little; | |
4625 | int from_script; | |
4626 | { | |
4627 | if (output_target == NULL || !from_script) | |
4628 | { | |
4629 | if (command_line.endian == ENDIAN_BIG | |
4630 | && big != NULL) | |
4631 | format = big; | |
4632 | else if (command_line.endian == ENDIAN_LITTLE | |
4633 | && little != NULL) | |
4634 | format = little; | |
4635 | ||
4636 | output_target = format; | |
4637 | } | |
4638 | } | |
4639 | ||
4640 | /* Enter a group. This creates a new lang_group_statement, and sets | |
4641 | stat_ptr to build new statements within the group. */ | |
4642 | ||
4643 | void | |
4644 | lang_enter_group () | |
4645 | { | |
4646 | lang_group_statement_type *g; | |
4647 | ||
4648 | g = new_stat (lang_group_statement, stat_ptr); | |
4649 | lang_list_init (&g->children); | |
4650 | stat_ptr = &g->children; | |
4651 | } | |
4652 | ||
4653 | /* Leave a group. This just resets stat_ptr to start writing to the | |
4654 | regular list of statements again. Note that this will not work if | |
4655 | groups can occur inside anything else which can adjust stat_ptr, | |
4656 | but currently they can't. */ | |
4657 | ||
4658 | void | |
4659 | lang_leave_group () | |
4660 | { | |
4661 | stat_ptr = &statement_list; | |
4662 | } | |
4663 | ||
4664 | /* Add a new program header. This is called for each entry in a PHDRS | |
4665 | command in a linker script. */ | |
4666 | ||
4667 | void | |
4668 | lang_new_phdr (name, type, filehdr, phdrs, at, flags) | |
4669 | const char *name; | |
4670 | etree_type *type; | |
4671 | boolean filehdr; | |
4672 | boolean phdrs; | |
4673 | etree_type *at; | |
4674 | etree_type *flags; | |
4675 | { | |
4676 | struct lang_phdr *n, **pp; | |
4677 | ||
4678 | n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr)); | |
4679 | n->next = NULL; | |
4680 | n->name = name; | |
4681 | n->type = exp_get_value_int (type, 0, "program header type", | |
4682 | lang_final_phase_enum); | |
4683 | n->filehdr = filehdr; | |
4684 | n->phdrs = phdrs; | |
4685 | n->at = at; | |
4686 | n->flags = flags; | |
4687 | ||
4688 | for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next) | |
4689 | ; | |
4690 | *pp = n; | |
4691 | } | |
4692 | ||
4693 | /* Record the program header information in the output BFD. FIXME: We | |
4694 | should not be calling an ELF specific function here. */ | |
4695 | ||
4696 | static void | |
4697 | lang_record_phdrs () | |
4698 | { | |
4699 | unsigned int alc; | |
4700 | asection **secs; | |
4701 | struct lang_output_section_phdr_list *last; | |
4702 | struct lang_phdr *l; | |
4703 | lang_statement_union_type *u; | |
4704 | ||
4705 | alc = 10; | |
4706 | secs = (asection **) xmalloc (alc * sizeof (asection *)); | |
4707 | last = NULL; | |
4708 | for (l = lang_phdr_list; l != NULL; l = l->next) | |
4709 | { | |
4710 | unsigned int c; | |
4711 | flagword flags; | |
4712 | bfd_vma at; | |
4713 | ||
4714 | c = 0; | |
4715 | for (u = lang_output_section_statement.head; | |
4716 | u != NULL; | |
4717 | u = u->output_section_statement.next) | |
4718 | { | |
4719 | lang_output_section_statement_type *os; | |
4720 | struct lang_output_section_phdr_list *pl; | |
4721 | ||
4722 | os = &u->output_section_statement; | |
4723 | ||
4724 | pl = os->phdrs; | |
4725 | if (pl != NULL) | |
4726 | last = pl; | |
4727 | else | |
4728 | { | |
4729 | if (os->sectype == noload_section | |
4730 | || os->bfd_section == NULL | |
4731 | || (os->bfd_section->flags & SEC_ALLOC) == 0) | |
4732 | continue; | |
4733 | pl = last; | |
4734 | } | |
4735 | ||
4736 | if (os->bfd_section == NULL) | |
4737 | continue; | |
4738 | ||
4739 | for (; pl != NULL; pl = pl->next) | |
4740 | { | |
4741 | if (strcmp (pl->name, l->name) == 0) | |
4742 | { | |
4743 | if (c >= alc) | |
4744 | { | |
4745 | alc *= 2; | |
4746 | secs = ((asection **) | |
4747 | xrealloc (secs, alc * sizeof (asection *))); | |
4748 | } | |
4749 | secs[c] = os->bfd_section; | |
4750 | ++c; | |
4751 | pl->used = true; | |
4752 | } | |
4753 | } | |
4754 | } | |
4755 | ||
4756 | if (l->flags == NULL) | |
4757 | flags = 0; | |
4758 | else | |
4759 | flags = exp_get_vma (l->flags, 0, "phdr flags", | |
4760 | lang_final_phase_enum); | |
4761 | ||
4762 | if (l->at == NULL) | |
4763 | at = 0; | |
4764 | else | |
4765 | at = exp_get_vma (l->at, 0, "phdr load address", | |
4766 | lang_final_phase_enum); | |
4767 | ||
4768 | if (! bfd_record_phdr (output_bfd, l->type, | |
d1778b88 | 4769 | l->flags != NULL, flags, l->at != NULL, |
252b5132 RH |
4770 | at, l->filehdr, l->phdrs, c, secs)) |
4771 | einfo (_("%F%P: bfd_record_phdr failed: %E\n")); | |
4772 | } | |
4773 | ||
4774 | free (secs); | |
4775 | ||
4776 | /* Make sure all the phdr assignments succeeded. */ | |
4777 | for (u = lang_output_section_statement.head; | |
4778 | u != NULL; | |
4779 | u = u->output_section_statement.next) | |
4780 | { | |
4781 | struct lang_output_section_phdr_list *pl; | |
4782 | ||
4783 | if (u->output_section_statement.bfd_section == NULL) | |
4784 | continue; | |
4785 | ||
4786 | for (pl = u->output_section_statement.phdrs; | |
4787 | pl != NULL; | |
4788 | pl = pl->next) | |
4789 | if (! pl->used && strcmp (pl->name, "NONE") != 0) | |
4790 | einfo (_("%X%P: section `%s' assigned to non-existent phdr `%s'\n"), | |
4791 | u->output_section_statement.name, pl->name); | |
4792 | } | |
4793 | } | |
4794 | ||
4795 | /* Record a list of sections which may not be cross referenced. */ | |
4796 | ||
4797 | void | |
4798 | lang_add_nocrossref (l) | |
4799 | struct lang_nocrossref *l; | |
4800 | { | |
4801 | struct lang_nocrossrefs *n; | |
4802 | ||
4803 | n = (struct lang_nocrossrefs *) xmalloc (sizeof *n); | |
4804 | n->next = nocrossref_list; | |
4805 | n->list = l; | |
4806 | nocrossref_list = n; | |
4807 | ||
4808 | /* Set notice_all so that we get informed about all symbols. */ | |
4809 | link_info.notice_all = true; | |
4810 | } | |
4811 | \f | |
4812 | /* Overlay handling. We handle overlays with some static variables. */ | |
4813 | ||
4814 | /* The overlay virtual address. */ | |
4815 | static etree_type *overlay_vma; | |
4816 | ||
252b5132 RH |
4817 | /* An expression for the maximum section size seen so far. */ |
4818 | static etree_type *overlay_max; | |
4819 | ||
4820 | /* A list of all the sections in this overlay. */ | |
4821 | ||
89cdebba | 4822 | struct overlay_list { |
252b5132 RH |
4823 | struct overlay_list *next; |
4824 | lang_output_section_statement_type *os; | |
4825 | }; | |
4826 | ||
4827 | static struct overlay_list *overlay_list; | |
4828 | ||
4829 | /* Start handling an overlay. */ | |
4830 | ||
4831 | void | |
9f88b410 | 4832 | lang_enter_overlay (vma_expr) |
252b5132 | 4833 | etree_type *vma_expr; |
252b5132 RH |
4834 | { |
4835 | /* The grammar should prevent nested overlays from occurring. */ | |
9f88b410 | 4836 | ASSERT (overlay_vma == NULL && overlay_max == NULL); |
252b5132 RH |
4837 | |
4838 | overlay_vma = vma_expr; | |
252b5132 RH |
4839 | } |
4840 | ||
4841 | /* Start a section in an overlay. We handle this by calling | |
9f88b410 RS |
4842 | lang_enter_output_section_statement with the correct VMA. |
4843 | lang_leave_overlay sets up the LMA and memory regions. */ | |
252b5132 RH |
4844 | |
4845 | void | |
4846 | lang_enter_overlay_section (name) | |
4847 | const char *name; | |
4848 | { | |
4849 | struct overlay_list *n; | |
4850 | etree_type *size; | |
4851 | ||
4852 | lang_enter_output_section_statement (name, overlay_vma, normal_section, | |
9f88b410 | 4853 | 0, 0, 0, 0); |
252b5132 | 4854 | |
9f88b410 | 4855 | /* If this is the first section, then base the VMA of future |
252b5132 RH |
4856 | sections on this one. This will work correctly even if `.' is |
4857 | used in the addresses. */ | |
4858 | if (overlay_list == NULL) | |
9f88b410 | 4859 | overlay_vma = exp_nameop (ADDR, name); |
252b5132 RH |
4860 | |
4861 | /* Remember the section. */ | |
4862 | n = (struct overlay_list *) xmalloc (sizeof *n); | |
4863 | n->os = current_section; | |
4864 | n->next = overlay_list; | |
4865 | overlay_list = n; | |
4866 | ||
4867 | size = exp_nameop (SIZEOF, name); | |
4868 | ||
252b5132 RH |
4869 | /* Arrange to work out the maximum section end address. */ |
4870 | if (overlay_max == NULL) | |
4871 | overlay_max = size; | |
4872 | else | |
4873 | overlay_max = exp_binop (MAX_K, overlay_max, size); | |
4874 | } | |
4875 | ||
4876 | /* Finish a section in an overlay. There isn't any special to do | |
4877 | here. */ | |
4878 | ||
4879 | void | |
4880 | lang_leave_overlay_section (fill, phdrs) | |
2c382fb6 | 4881 | fill_type *fill; |
252b5132 RH |
4882 | struct lang_output_section_phdr_list *phdrs; |
4883 | { | |
4884 | const char *name; | |
4885 | char *clean, *s2; | |
4886 | const char *s1; | |
4887 | char *buf; | |
4888 | ||
4889 | name = current_section->name; | |
4890 | ||
9f88b410 RS |
4891 | /* For now, assume that "*default*" is the run-time memory region and |
4892 | that no load-time region has been specified. It doesn't really | |
4893 | matter what we say here, since lang_leave_overlay will override it. */ | |
4894 | lang_leave_output_section_statement (fill, "*default*", phdrs, 0); | |
252b5132 RH |
4895 | |
4896 | /* Define the magic symbols. */ | |
4897 | ||
4898 | clean = xmalloc (strlen (name) + 1); | |
4899 | s2 = clean; | |
4900 | for (s1 = name; *s1 != '\0'; s1++) | |
3882b010 | 4901 | if (ISALNUM (*s1) || *s1 == '_') |
252b5132 RH |
4902 | *s2++ = *s1; |
4903 | *s2 = '\0'; | |
4904 | ||
4905 | buf = xmalloc (strlen (clean) + sizeof "__load_start_"); | |
4906 | sprintf (buf, "__load_start_%s", clean); | |
4907 | lang_add_assignment (exp_assop ('=', buf, | |
4908 | exp_nameop (LOADADDR, name))); | |
4909 | ||
4910 | buf = xmalloc (strlen (clean) + sizeof "__load_stop_"); | |
4911 | sprintf (buf, "__load_stop_%s", clean); | |
4912 | lang_add_assignment (exp_assop ('=', buf, | |
4913 | exp_binop ('+', | |
4914 | exp_nameop (LOADADDR, name), | |
4915 | exp_nameop (SIZEOF, name)))); | |
4916 | ||
4917 | free (clean); | |
4918 | } | |
4919 | ||
4920 | /* Finish an overlay. If there are any overlay wide settings, this | |
4921 | looks through all the sections in the overlay and sets them. */ | |
4922 | ||
4923 | void | |
9f88b410 RS |
4924 | lang_leave_overlay (lma_expr, nocrossrefs, fill, memspec, phdrs, lma_memspec) |
4925 | etree_type *lma_expr; | |
4926 | int nocrossrefs; | |
2c382fb6 | 4927 | fill_type *fill; |
252b5132 RH |
4928 | const char *memspec; |
4929 | struct lang_output_section_phdr_list *phdrs; | |
562d3460 | 4930 | const char *lma_memspec; |
252b5132 RH |
4931 | { |
4932 | lang_memory_region_type *region; | |
562d3460 | 4933 | lang_memory_region_type *lma_region; |
252b5132 RH |
4934 | struct overlay_list *l; |
4935 | struct lang_nocrossref *nocrossref; | |
4936 | ||
9f88b410 RS |
4937 | region = lang_memory_region_lookup (memspec); |
4938 | lma_region = lang_memory_region_lookup (lma_memspec); | |
562d3460 | 4939 | |
252b5132 RH |
4940 | nocrossref = NULL; |
4941 | ||
9f88b410 RS |
4942 | /* After setting the size of the last section, set '.' to end of the |
4943 | overlay region. */ | |
4944 | if (overlay_list != NULL) | |
4945 | overlay_list->os->update_dot_tree | |
4946 | = exp_assop ('=', ".", exp_binop ('+', overlay_vma, overlay_max)); | |
4947 | ||
252b5132 RH |
4948 | l = overlay_list; |
4949 | while (l != NULL) | |
4950 | { | |
4951 | struct overlay_list *next; | |
4952 | ||
2c382fb6 | 4953 | if (fill != (fill_type *) 0 && l->os->fill == (fill_type *) 0) |
252b5132 | 4954 | l->os->fill = fill; |
1545243b | 4955 | |
9f88b410 RS |
4956 | l->os->region = region; |
4957 | l->os->lma_region = lma_region; | |
4958 | ||
4959 | /* The first section has the load address specified in the | |
4960 | OVERLAY statement. The rest are worked out from that. | |
4961 | The base address is not needed (and should be null) if | |
4962 | an LMA region was specified. */ | |
4963 | if (l->next == 0) | |
4964 | l->os->load_base = lma_expr; | |
4965 | else if (lma_region == 0) | |
4966 | l->os->load_base = exp_binop ('+', | |
4967 | exp_nameop (LOADADDR, l->next->os->name), | |
4968 | exp_nameop (SIZEOF, l->next->os->name)); | |
1545243b | 4969 | |
252b5132 RH |
4970 | if (phdrs != NULL && l->os->phdrs == NULL) |
4971 | l->os->phdrs = phdrs; | |
4972 | ||
9f88b410 | 4973 | if (nocrossrefs) |
252b5132 RH |
4974 | { |
4975 | struct lang_nocrossref *nc; | |
4976 | ||
4977 | nc = (struct lang_nocrossref *) xmalloc (sizeof *nc); | |
4978 | nc->name = l->os->name; | |
4979 | nc->next = nocrossref; | |
4980 | nocrossref = nc; | |
4981 | } | |
4982 | ||
4983 | next = l->next; | |
4984 | free (l); | |
4985 | l = next; | |
4986 | } | |
4987 | ||
4988 | if (nocrossref != NULL) | |
4989 | lang_add_nocrossref (nocrossref); | |
4990 | ||
252b5132 | 4991 | overlay_vma = NULL; |
252b5132 RH |
4992 | overlay_list = NULL; |
4993 | overlay_max = NULL; | |
4994 | } | |
4995 | \f | |
4996 | /* Version handling. This is only useful for ELF. */ | |
4997 | ||
4998 | /* This global variable holds the version tree that we build. */ | |
4999 | ||
5000 | struct bfd_elf_version_tree *lang_elf_version_info; | |
5001 | ||
5002 | static int | |
5003 | lang_vers_match_lang_c (expr, sym) | |
5004 | struct bfd_elf_version_expr *expr; | |
5005 | const char *sym; | |
5006 | { | |
5007 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') | |
5008 | return 1; | |
5009 | return fnmatch (expr->pattern, sym, 0) == 0; | |
5010 | } | |
5011 | ||
5012 | static int | |
5013 | lang_vers_match_lang_cplusplus (expr, sym) | |
5014 | struct bfd_elf_version_expr *expr; | |
5015 | const char *sym; | |
5016 | { | |
5017 | char *alt_sym; | |
5018 | int result; | |
5019 | ||
5020 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') | |
5021 | return 1; | |
5022 | ||
08da4cac | 5023 | alt_sym = cplus_demangle (sym, /* DMGL_NO_TPARAMS */ 0); |
252b5132 RH |
5024 | if (!alt_sym) |
5025 | { | |
5026 | /* cplus_demangle (also) returns NULL when it is not a C++ symbol. | |
5027 | Should we early out false in this case? */ | |
5028 | result = fnmatch (expr->pattern, sym, 0) == 0; | |
5029 | } | |
5030 | else | |
5031 | { | |
5032 | result = fnmatch (expr->pattern, alt_sym, 0) == 0; | |
5033 | free (alt_sym); | |
5034 | } | |
5035 | ||
5036 | return result; | |
5037 | } | |
5038 | ||
5039 | static int | |
5040 | lang_vers_match_lang_java (expr, sym) | |
5041 | struct bfd_elf_version_expr *expr; | |
5042 | const char *sym; | |
5043 | { | |
5044 | char *alt_sym; | |
5045 | int result; | |
5046 | ||
5047 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') | |
5048 | return 1; | |
5049 | ||
08da4cac | 5050 | alt_sym = cplus_demangle (sym, DMGL_JAVA); |
252b5132 RH |
5051 | if (!alt_sym) |
5052 | { | |
5053 | /* cplus_demangle (also) returns NULL when it is not a Java symbol. | |
5054 | Should we early out false in this case? */ | |
5055 | result = fnmatch (expr->pattern, sym, 0) == 0; | |
5056 | } | |
5057 | else | |
5058 | { | |
5059 | result = fnmatch (expr->pattern, alt_sym, 0) == 0; | |
5060 | free (alt_sym); | |
5061 | } | |
5062 | ||
5063 | return result; | |
5064 | } | |
5065 | ||
5066 | /* This is called for each variable name or match expression. */ | |
5067 | ||
5068 | struct bfd_elf_version_expr * | |
313e35ee | 5069 | lang_new_vers_pattern (orig, new, lang) |
252b5132 RH |
5070 | struct bfd_elf_version_expr *orig; |
5071 | const char *new; | |
5072 | const char *lang; | |
5073 | { | |
5074 | struct bfd_elf_version_expr *ret; | |
5075 | ||
5076 | ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret); | |
5077 | ret->next = orig; | |
5078 | ret->pattern = new; | |
5079 | ||
5080 | if (lang == NULL || strcasecmp (lang, "C") == 0) | |
5081 | ret->match = lang_vers_match_lang_c; | |
5082 | else if (strcasecmp (lang, "C++") == 0) | |
5083 | ret->match = lang_vers_match_lang_cplusplus; | |
5084 | else if (strcasecmp (lang, "Java") == 0) | |
5085 | ret->match = lang_vers_match_lang_java; | |
5086 | else | |
5087 | { | |
5088 | einfo (_("%X%P: unknown language `%s' in version information\n"), | |
5089 | lang); | |
5090 | ret->match = lang_vers_match_lang_c; | |
5091 | } | |
5092 | ||
fac1652d | 5093 | return ldemul_new_vers_pattern (ret); |
252b5132 RH |
5094 | } |
5095 | ||
5096 | /* This is called for each set of variable names and match | |
5097 | expressions. */ | |
5098 | ||
5099 | struct bfd_elf_version_tree * | |
5100 | lang_new_vers_node (globals, locals) | |
5101 | struct bfd_elf_version_expr *globals; | |
5102 | struct bfd_elf_version_expr *locals; | |
5103 | { | |
5104 | struct bfd_elf_version_tree *ret; | |
5105 | ||
5106 | ret = (struct bfd_elf_version_tree *) xmalloc (sizeof *ret); | |
5107 | ret->next = NULL; | |
5108 | ret->name = NULL; | |
5109 | ret->vernum = 0; | |
5110 | ret->globals = globals; | |
5111 | ret->locals = locals; | |
5112 | ret->deps = NULL; | |
5113 | ret->name_indx = (unsigned int) -1; | |
5114 | ret->used = 0; | |
5115 | return ret; | |
5116 | } | |
5117 | ||
5118 | /* This static variable keeps track of version indices. */ | |
5119 | ||
5120 | static int version_index; | |
5121 | ||
5122 | /* This is called when we know the name and dependencies of the | |
5123 | version. */ | |
5124 | ||
5125 | void | |
5126 | lang_register_vers_node (name, version, deps) | |
5127 | const char *name; | |
5128 | struct bfd_elf_version_tree *version; | |
5129 | struct bfd_elf_version_deps *deps; | |
5130 | { | |
5131 | struct bfd_elf_version_tree *t, **pp; | |
5132 | struct bfd_elf_version_expr *e1; | |
5133 | ||
6b9b879a JJ |
5134 | if (name == NULL) |
5135 | name = ""; | |
5136 | ||
5137 | if ((name[0] == '\0' && lang_elf_version_info != NULL) | |
5138 | || (lang_elf_version_info && lang_elf_version_info->name[0] == '\0')) | |
5139 | { | |
5140 | einfo (_("%X%P: anonymous version tag cannot be combined with other version tags\n")); | |
5141 | return; | |
5142 | } | |
5143 | ||
252b5132 RH |
5144 | /* Make sure this node has a unique name. */ |
5145 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5146 | if (strcmp (t->name, name) == 0) | |
5147 | einfo (_("%X%P: duplicate version tag `%s'\n"), name); | |
5148 | ||
5149 | /* Check the global and local match names, and make sure there | |
5150 | aren't any duplicates. */ | |
5151 | ||
5152 | for (e1 = version->globals; e1 != NULL; e1 = e1->next) | |
5153 | { | |
5154 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5155 | { | |
5156 | struct bfd_elf_version_expr *e2; | |
5157 | ||
5158 | for (e2 = t->locals; e2 != NULL; e2 = e2->next) | |
5159 | if (strcmp (e1->pattern, e2->pattern) == 0) | |
5160 | einfo (_("%X%P: duplicate expression `%s' in version information\n"), | |
5161 | e1->pattern); | |
5162 | } | |
5163 | } | |
5164 | ||
5165 | for (e1 = version->locals; e1 != NULL; e1 = e1->next) | |
5166 | { | |
5167 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5168 | { | |
5169 | struct bfd_elf_version_expr *e2; | |
5170 | ||
5171 | for (e2 = t->globals; e2 != NULL; e2 = e2->next) | |
5172 | if (strcmp (e1->pattern, e2->pattern) == 0) | |
5173 | einfo (_("%X%P: duplicate expression `%s' in version information\n"), | |
5174 | e1->pattern); | |
5175 | } | |
5176 | } | |
5177 | ||
5178 | version->deps = deps; | |
5179 | version->name = name; | |
6b9b879a JJ |
5180 | if (name[0] != '\0') |
5181 | { | |
5182 | ++version_index; | |
5183 | version->vernum = version_index; | |
5184 | } | |
5185 | else | |
5186 | version->vernum = 0; | |
252b5132 RH |
5187 | |
5188 | for (pp = &lang_elf_version_info; *pp != NULL; pp = &(*pp)->next) | |
5189 | ; | |
5190 | *pp = version; | |
5191 | } | |
5192 | ||
5193 | /* This is called when we see a version dependency. */ | |
5194 | ||
5195 | struct bfd_elf_version_deps * | |
5196 | lang_add_vers_depend (list, name) | |
5197 | struct bfd_elf_version_deps *list; | |
5198 | const char *name; | |
5199 | { | |
5200 | struct bfd_elf_version_deps *ret; | |
5201 | struct bfd_elf_version_tree *t; | |
5202 | ||
5203 | ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret); | |
5204 | ret->next = list; | |
5205 | ||
5206 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5207 | { | |
5208 | if (strcmp (t->name, name) == 0) | |
5209 | { | |
5210 | ret->version_needed = t; | |
5211 | return ret; | |
5212 | } | |
5213 | } | |
5214 | ||
5215 | einfo (_("%X%P: unable to find version dependency `%s'\n"), name); | |
5216 | ||
5217 | return ret; | |
5218 | } | |
5219 | ||
5220 | static void | |
5221 | lang_do_version_exports_section () | |
5222 | { | |
5223 | struct bfd_elf_version_expr *greg = NULL, *lreg; | |
5224 | ||
5225 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
5226 | { | |
5227 | asection *sec = bfd_get_section_by_name (is->the_bfd, ".exports"); | |
5228 | char *contents, *p; | |
5229 | bfd_size_type len; | |
5230 | ||
5231 | if (sec == NULL) | |
b7a26f91 | 5232 | continue; |
252b5132 RH |
5233 | |
5234 | len = bfd_section_size (is->the_bfd, sec); | |
5235 | contents = xmalloc (len); | |
5236 | if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len)) | |
6f9efd97 | 5237 | einfo (_("%X%P: unable to read .exports section contents\n"), sec); |
252b5132 RH |
5238 | |
5239 | p = contents; | |
89cdebba | 5240 | while (p < contents + len) |
252b5132 | 5241 | { |
313e35ee | 5242 | greg = lang_new_vers_pattern (greg, p, NULL); |
252b5132 RH |
5243 | p = strchr (p, '\0') + 1; |
5244 | } | |
5245 | ||
5246 | /* Do not free the contents, as we used them creating the regex. */ | |
5247 | ||
5248 | /* Do not include this section in the link. */ | |
5249 | bfd_set_section_flags (is->the_bfd, sec, | |
5250 | bfd_get_section_flags (is->the_bfd, sec) | SEC_EXCLUDE); | |
5251 | } | |
5252 | ||
313e35ee | 5253 | lreg = lang_new_vers_pattern (NULL, "*", NULL); |
252b5132 RH |
5254 | lang_register_vers_node (command_line.version_exports_section, |
5255 | lang_new_vers_node (greg, lreg), NULL); | |
5256 | } | |
577a0623 AM |
5257 | |
5258 | void | |
5259 | lang_add_unique (name) | |
5260 | const char *name; | |
5261 | { | |
5262 | struct unique_sections *ent; | |
5263 | ||
5264 | for (ent = unique_section_list; ent; ent = ent->next) | |
5265 | if (strcmp (ent->name, name) == 0) | |
5266 | return; | |
5267 | ||
5268 | ent = (struct unique_sections *) xmalloc (sizeof *ent); | |
5269 | ent->name = xstrdup (name); | |
5270 | ent->next = unique_section_list; | |
5271 | unique_section_list = ent; | |
5272 | } |