Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Linker command language support. |
4b95cf5c | 2 | Copyright (C) 1991-2014 Free Software Foundation, Inc. |
252b5132 | 3 | |
f96b4a7b | 4 | This file is part of the GNU Binutils. |
252b5132 | 5 | |
f96b4a7b | 6 | This program is free software; you can redistribute it and/or modify |
53b2a62f | 7 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
8 | the Free Software Foundation; either version 3 of the License, or |
9 | (at your option) any later version. | |
252b5132 | 10 | |
f96b4a7b | 11 | This program is distributed in the hope that it will be useful, |
53b2a62f NC |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
252b5132 | 15 | |
53b2a62f | 16 | You should have received a copy of the GNU General Public License |
f96b4a7b NC |
17 | along with this program; if not, write to the Free Software |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
252b5132 | 20 | |
252b5132 | 21 | #include "sysdep.h" |
3db64b00 | 22 | #include "bfd.h" |
252b5132 | 23 | #include "libiberty.h" |
42627821 | 24 | #include "filenames.h" |
3882b010 | 25 | #include "safe-ctype.h" |
252b5132 RH |
26 | #include "obstack.h" |
27 | #include "bfdlink.h" | |
28 | ||
29 | #include "ld.h" | |
30 | #include "ldmain.h" | |
252b5132 RH |
31 | #include "ldexp.h" |
32 | #include "ldlang.h" | |
df2a7313 | 33 | #include <ldgram.h> |
252b5132 RH |
34 | #include "ldlex.h" |
35 | #include "ldmisc.h" | |
36 | #include "ldctor.h" | |
37 | #include "ldfile.h" | |
b71e2778 | 38 | #include "ldemul.h" |
252b5132 RH |
39 | #include "fnmatch.h" |
40 | #include "demangle.h" | |
108ba305 | 41 | #include "hashtab.h" |
5d3236ee DK |
42 | #include "libbfd.h" |
43 | #ifdef ENABLE_PLUGINS | |
44 | #include "plugin.h" | |
45 | #endif /* ENABLE_PLUGINS */ | |
252b5132 | 46 | |
7abb6dea | 47 | #ifndef offsetof |
cf888e70 | 48 | #define offsetof(TYPE, MEMBER) ((size_t) & (((TYPE*) 0)->MEMBER)) |
7abb6dea AM |
49 | #endif |
50 | ||
cf888e70 | 51 | /* Locals variables. */ |
252b5132 | 52 | static struct obstack stat_obstack; |
35835446 | 53 | static struct obstack map_obstack; |
252b5132 RH |
54 | |
55 | #define obstack_chunk_alloc xmalloc | |
56 | #define obstack_chunk_free free | |
8be573a7 | 57 | static const char *entry_symbol_default = "start"; |
b34976b6 | 58 | static bfd_boolean placed_commons = FALSE; |
8423293d | 59 | static bfd_boolean stripped_excluded_sections = FALSE; |
252b5132 | 60 | static lang_output_section_statement_type *default_common_section; |
b34976b6 | 61 | static bfd_boolean map_option_f; |
252b5132 RH |
62 | static bfd_vma print_dot; |
63 | static lang_input_statement_type *first_file; | |
5f992e62 | 64 | static const char *current_target; |
252b5132 | 65 | static lang_statement_list_type statement_list; |
420e579c | 66 | static struct bfd_hash_table lang_definedness_table; |
bde18da4 AM |
67 | static lang_statement_list_type *stat_save[10]; |
68 | static lang_statement_list_type **stat_save_ptr = &stat_save[0]; | |
c4b78195 | 69 | static struct unique_sections *unique_section_list; |
16e4ecc0 | 70 | static struct asneeded_minfo *asneeded_list_head; |
252b5132 | 71 | |
cf888e70 | 72 | /* Forward declarations. */ |
a431bc2e | 73 | static void exp_init_os (etree_type *); |
1579bae1 | 74 | static lang_input_statement_type *lookup_name (const char *); |
420e579c HPN |
75 | static struct bfd_hash_entry *lang_definedness_newfunc |
76 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); | |
1579bae1 | 77 | static void insert_undefined (const char *); |
35835446 | 78 | static bfd_boolean sort_def_symbol (struct bfd_link_hash_entry *, void *); |
1579bae1 AM |
79 | static void print_statement (lang_statement_union_type *, |
80 | lang_output_section_statement_type *); | |
81 | static void print_statement_list (lang_statement_union_type *, | |
82 | lang_output_section_statement_type *); | |
83 | static void print_statements (void); | |
d64703c6 | 84 | static void print_input_section (asection *, bfd_boolean); |
1579bae1 AM |
85 | static bfd_boolean lang_one_common (struct bfd_link_hash_entry *, void *); |
86 | static void lang_record_phdrs (void); | |
87 | static void lang_do_version_exports_section (void); | |
55255dae L |
88 | static void lang_finalize_version_expr_head |
89 | (struct bfd_elf_version_expr_head *); | |
1579bae1 | 90 | |
cf888e70 | 91 | /* Exported variables. */ |
8be573a7 | 92 | const char *output_target; |
252b5132 | 93 | lang_output_section_statement_type *abs_output_section; |
aea4bd9d | 94 | lang_statement_list_type lang_output_section_statement; |
252b5132 | 95 | lang_statement_list_type *stat_ptr = &statement_list; |
87f2a346 | 96 | lang_statement_list_type file_chain = { NULL, NULL }; |
dc27aea4 | 97 | lang_statement_list_type input_file_chain; |
e3e942e9 | 98 | struct bfd_sym_chain entry_symbol = { NULL, NULL }; |
1e281515 | 99 | const char *entry_section = ".text"; |
66be1055 | 100 | struct lang_input_statement_flags input_flags; |
b34976b6 | 101 | bfd_boolean entry_from_cmdline; |
24898b70 | 102 | bfd_boolean undef_from_cmdline; |
b34976b6 AM |
103 | bfd_boolean lang_has_input_file = FALSE; |
104 | bfd_boolean had_output_filename = FALSE; | |
105 | bfd_boolean lang_float_flag = FALSE; | |
106 | bfd_boolean delete_output_file_on_failure = FALSE; | |
f5ff60a6 | 107 | struct lang_phdr *lang_phdr_list; |
252b5132 | 108 | struct lang_nocrossrefs *nocrossref_list; |
16e4ecc0 | 109 | struct asneeded_minfo **asneeded_list_tail; |
e9ee469a AM |
110 | |
111 | /* Functions that traverse the linker script and might evaluate | |
fa72205c | 112 | DEFINED() need to increment this at the start of the traversal. */ |
420e579c | 113 | int lang_statement_iteration = 0; |
252b5132 | 114 | |
61f5d054 L |
115 | /* Return TRUE if the PATTERN argument is a wildcard pattern. |
116 | Although backslashes are treated specially if a pattern contains | |
117 | wildcards, we do not consider the mere presence of a backslash to | |
118 | be enough to cause the pattern to be treated as a wildcard. | |
119 | That lets us handle DOS filenames more naturally. */ | |
120 | #define wildcardp(pattern) (strpbrk ((pattern), "?*[") != NULL) | |
121 | ||
d1778b88 | 122 | #define new_stat(x, y) \ |
1579bae1 | 123 | (x##_type *) new_statement (x##_enum, sizeof (x##_type), y) |
252b5132 | 124 | |
d1778b88 AM |
125 | #define outside_section_address(q) \ |
126 | ((q)->output_offset + (q)->output_section->vma) | |
252b5132 | 127 | |
d1778b88 AM |
128 | #define outside_symbol_address(q) \ |
129 | ((q)->value + outside_section_address (q->section)) | |
252b5132 RH |
130 | |
131 | #define SECTION_NAME_MAP_LENGTH (16) | |
132 | ||
1579bae1 AM |
133 | void * |
134 | stat_alloc (size_t size) | |
252b5132 RH |
135 | { |
136 | return obstack_alloc (&stat_obstack, size); | |
137 | } | |
138 | ||
97407faf AM |
139 | static int |
140 | name_match (const char *pattern, const char *name) | |
141 | { | |
142 | if (wildcardp (pattern)) | |
143 | return fnmatch (pattern, name, 0); | |
144 | return strcmp (pattern, name); | |
145 | } | |
146 | ||
147 | /* If PATTERN is of the form archive:file, return a pointer to the | |
148 | separator. If not, return NULL. */ | |
149 | ||
150 | static char * | |
151 | archive_path (const char *pattern) | |
152 | { | |
153 | char *p = NULL; | |
154 | ||
155 | if (link_info.path_separator == 0) | |
156 | return p; | |
157 | ||
158 | p = strchr (pattern, link_info.path_separator); | |
159 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
160 | if (p == NULL || link_info.path_separator != ':') | |
161 | return p; | |
162 | ||
163 | /* Assume a match on the second char is part of drive specifier, | |
164 | as in "c:\silly.dos". */ | |
967928e9 | 165 | if (p == pattern + 1 && ISALPHA (*pattern)) |
97407faf AM |
166 | p = strchr (p + 1, link_info.path_separator); |
167 | #endif | |
168 | return p; | |
169 | } | |
170 | ||
967928e9 AM |
171 | /* Given that FILE_SPEC results in a non-NULL SEP result from archive_path, |
172 | return whether F matches FILE_SPEC. */ | |
173 | ||
174 | static bfd_boolean | |
175 | input_statement_is_archive_path (const char *file_spec, char *sep, | |
176 | lang_input_statement_type *f) | |
177 | { | |
178 | bfd_boolean match = FALSE; | |
179 | ||
180 | if ((*(sep + 1) == 0 | |
181 | || name_match (sep + 1, f->filename) == 0) | |
182 | && ((sep != file_spec) | |
183 | == (f->the_bfd != NULL && f->the_bfd->my_archive != NULL))) | |
184 | { | |
185 | match = TRUE; | |
186 | ||
187 | if (sep != file_spec) | |
188 | { | |
189 | const char *aname = f->the_bfd->my_archive->filename; | |
190 | *sep = 0; | |
191 | match = name_match (file_spec, aname) == 0; | |
192 | *sep = link_info.path_separator; | |
193 | } | |
194 | } | |
195 | return match; | |
196 | } | |
197 | ||
8a99a385 | 198 | static bfd_boolean |
d0bf826b AM |
199 | unique_section_p (const asection *sec, |
200 | const lang_output_section_statement_type *os) | |
577a0623 AM |
201 | { |
202 | struct unique_sections *unam; | |
d0d6a25b | 203 | const char *secnam; |
577a0623 | 204 | |
d0d6a25b AM |
205 | if (link_info.relocatable |
206 | && sec->owner != NULL | |
207 | && bfd_is_group_section (sec->owner, sec)) | |
d0bf826b AM |
208 | return !(os != NULL |
209 | && strcmp (os->name, DISCARD_SECTION_NAME) == 0); | |
d0d6a25b AM |
210 | |
211 | secnam = sec->name; | |
577a0623 | 212 | for (unam = unique_section_list; unam; unam = unam->next) |
97407faf AM |
213 | if (name_match (unam->name, secnam) == 0) |
214 | return TRUE; | |
577a0623 | 215 | |
b34976b6 | 216 | return FALSE; |
577a0623 AM |
217 | } |
218 | ||
08da4cac | 219 | /* Generic traversal routines for finding matching sections. */ |
4dec4d4e | 220 | |
72223188 JJ |
221 | /* Try processing a section against a wildcard. This just calls |
222 | the callback unless the filename exclusion list is present | |
223 | and excludes the file. It's hardly ever present so this | |
224 | function is very fast. */ | |
225 | ||
4dec4d4e | 226 | static void |
72223188 JJ |
227 | walk_wild_consider_section (lang_wild_statement_type *ptr, |
228 | lang_input_statement_type *file, | |
229 | asection *s, | |
230 | struct wildcard_list *sec, | |
231 | callback_t callback, | |
232 | void *data) | |
4dec4d4e | 233 | { |
72223188 JJ |
234 | struct name_list *list_tmp; |
235 | ||
97407faf | 236 | /* Don't process sections from files which were excluded. */ |
72223188 JJ |
237 | for (list_tmp = sec->spec.exclude_name_list; |
238 | list_tmp; | |
239 | list_tmp = list_tmp->next) | |
240 | { | |
967928e9 | 241 | char *p = archive_path (list_tmp->name); |
b6bf44ba | 242 | |
967928e9 | 243 | if (p != NULL) |
72223188 | 244 | { |
967928e9 AM |
245 | if (input_statement_is_archive_path (list_tmp->name, p, file)) |
246 | return; | |
72223188 JJ |
247 | } |
248 | ||
967928e9 AM |
249 | else if (name_match (list_tmp->name, file->filename) == 0) |
250 | return; | |
251 | ||
252 | /* FIXME: Perhaps remove the following at some stage? Matching | |
253 | unadorned archives like this was never documented and has | |
254 | been superceded by the archive:path syntax. */ | |
255 | else if (file->the_bfd != NULL | |
256 | && file->the_bfd->my_archive != NULL | |
257 | && name_match (list_tmp->name, | |
258 | file->the_bfd->my_archive->filename) == 0) | |
259 | return; | |
72223188 JJ |
260 | } |
261 | ||
b9c361e0 | 262 | (*callback) (ptr, sec, s, ptr->section_flag_list, file, data); |
72223188 JJ |
263 | } |
264 | ||
265 | /* Lowest common denominator routine that can handle everything correctly, | |
266 | but slowly. */ | |
267 | ||
268 | static void | |
269 | walk_wild_section_general (lang_wild_statement_type *ptr, | |
270 | lang_input_statement_type *file, | |
271 | callback_t callback, | |
272 | void *data) | |
273 | { | |
274 | asection *s; | |
275 | struct wildcard_list *sec; | |
b6bf44ba AM |
276 | |
277 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
4dec4d4e | 278 | { |
b6bf44ba | 279 | sec = ptr->section_list; |
2181f54f | 280 | if (sec == NULL) |
b9c361e0 | 281 | (*callback) (ptr, sec, s, ptr->section_flag_list, file, data); |
2181f54f AM |
282 | |
283 | while (sec != NULL) | |
08da4cac | 284 | { |
b34976b6 | 285 | bfd_boolean skip = FALSE; |
2181f54f | 286 | |
72223188 | 287 | if (sec->spec.name != NULL) |
b6bf44ba | 288 | { |
2181f54f AM |
289 | const char *sname = bfd_get_section_name (file->the_bfd, s); |
290 | ||
97407faf | 291 | skip = name_match (sec->spec.name, sname) != 0; |
b6bf44ba | 292 | } |
4dec4d4e | 293 | |
b6bf44ba | 294 | if (!skip) |
72223188 | 295 | walk_wild_consider_section (ptr, file, s, sec, callback, data); |
4dec4d4e | 296 | |
2181f54f | 297 | sec = sec->next; |
4dec4d4e RH |
298 | } |
299 | } | |
300 | } | |
301 | ||
72223188 JJ |
302 | /* Routines to find a single section given its name. If there's more |
303 | than one section with that name, we report that. */ | |
304 | ||
305 | typedef struct | |
306 | { | |
307 | asection *found_section; | |
308 | bfd_boolean multiple_sections_found; | |
309 | } section_iterator_callback_data; | |
310 | ||
311 | static bfd_boolean | |
91d6fa6a | 312 | section_iterator_callback (bfd *abfd ATTRIBUTE_UNUSED, asection *s, void *data) |
72223188 | 313 | { |
1e9cc1c2 | 314 | section_iterator_callback_data *d = (section_iterator_callback_data *) data; |
72223188 JJ |
315 | |
316 | if (d->found_section != NULL) | |
317 | { | |
318 | d->multiple_sections_found = TRUE; | |
319 | return TRUE; | |
320 | } | |
321 | ||
322 | d->found_section = s; | |
323 | return FALSE; | |
324 | } | |
325 | ||
326 | static asection * | |
327 | find_section (lang_input_statement_type *file, | |
328 | struct wildcard_list *sec, | |
329 | bfd_boolean *multiple_sections_found) | |
330 | { | |
331 | section_iterator_callback_data cb_data = { NULL, FALSE }; | |
332 | ||
329c1c86 | 333 | bfd_get_section_by_name_if (file->the_bfd, sec->spec.name, |
72223188 JJ |
334 | section_iterator_callback, &cb_data); |
335 | *multiple_sections_found = cb_data.multiple_sections_found; | |
336 | return cb_data.found_section; | |
337 | } | |
338 | ||
339 | /* Code for handling simple wildcards without going through fnmatch, | |
340 | which can be expensive because of charset translations etc. */ | |
341 | ||
342 | /* A simple wild is a literal string followed by a single '*', | |
343 | where the literal part is at least 4 characters long. */ | |
344 | ||
345 | static bfd_boolean | |
346 | is_simple_wild (const char *name) | |
347 | { | |
348 | size_t len = strcspn (name, "*?["); | |
349 | return len >= 4 && name[len] == '*' && name[len + 1] == '\0'; | |
350 | } | |
351 | ||
352 | static bfd_boolean | |
353 | match_simple_wild (const char *pattern, const char *name) | |
354 | { | |
355 | /* The first four characters of the pattern are guaranteed valid | |
356 | non-wildcard characters. So we can go faster. */ | |
357 | if (pattern[0] != name[0] || pattern[1] != name[1] | |
358 | || pattern[2] != name[2] || pattern[3] != name[3]) | |
359 | return FALSE; | |
360 | ||
361 | pattern += 4; | |
362 | name += 4; | |
363 | while (*pattern != '*') | |
364 | if (*name++ != *pattern++) | |
365 | return FALSE; | |
366 | ||
367 | return TRUE; | |
368 | } | |
369 | ||
02ecc8e9 L |
370 | /* Return the numerical value of the init_priority attribute from |
371 | section name NAME. */ | |
372 | ||
373 | static unsigned long | |
374 | get_init_priority (const char *name) | |
375 | { | |
376 | char *end; | |
377 | unsigned long init_priority; | |
378 | ||
379 | /* GCC uses the following section names for the init_priority | |
380 | attribute with numerical values 101 and 65535 inclusive. A | |
381 | lower value means a higher priority. | |
382 | ||
383 | 1: .init_array.NNNN/.fini_array.NNNN: Where NNNN is the | |
384 | decimal numerical value of the init_priority attribute. | |
385 | The order of execution in .init_array is forward and | |
386 | .fini_array is backward. | |
61087d8c | 387 | 2: .ctors.NNNN/.dtors.NNNN: Where NNNN is 65535 minus the |
02ecc8e9 L |
388 | decimal numerical value of the init_priority attribute. |
389 | The order of execution in .ctors is backward and .dtors | |
390 | is forward. | |
391 | */ | |
392 | if (strncmp (name, ".init_array.", 12) == 0 | |
393 | || strncmp (name, ".fini_array.", 12) == 0) | |
394 | { | |
395 | init_priority = strtoul (name + 12, &end, 10); | |
396 | return *end ? 0 : init_priority; | |
397 | } | |
398 | else if (strncmp (name, ".ctors.", 7) == 0 | |
399 | || strncmp (name, ".dtors.", 7) == 0) | |
400 | { | |
401 | init_priority = strtoul (name + 7, &end, 10); | |
402 | return *end ? 0 : 65535 - init_priority; | |
403 | } | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
50c77e5d NC |
408 | /* Compare sections ASEC and BSEC according to SORT. */ |
409 | ||
410 | static int | |
411 | compare_section (sort_type sort, asection *asec, asection *bsec) | |
412 | { | |
413 | int ret; | |
02ecc8e9 | 414 | unsigned long ainit_priority, binit_priority; |
50c77e5d NC |
415 | |
416 | switch (sort) | |
417 | { | |
418 | default: | |
419 | abort (); | |
420 | ||
02ecc8e9 L |
421 | case by_init_priority: |
422 | ainit_priority | |
423 | = get_init_priority (bfd_get_section_name (asec->owner, asec)); | |
424 | binit_priority | |
425 | = get_init_priority (bfd_get_section_name (bsec->owner, bsec)); | |
426 | if (ainit_priority == 0 || binit_priority == 0) | |
427 | goto sort_by_name; | |
428 | ret = ainit_priority - binit_priority; | |
429 | if (ret) | |
430 | break; | |
431 | else | |
432 | goto sort_by_name; | |
433 | ||
50c77e5d NC |
434 | case by_alignment_name: |
435 | ret = (bfd_section_alignment (bsec->owner, bsec) | |
436 | - bfd_section_alignment (asec->owner, asec)); | |
437 | if (ret) | |
438 | break; | |
439 | /* Fall through. */ | |
440 | ||
441 | case by_name: | |
02ecc8e9 | 442 | sort_by_name: |
50c77e5d NC |
443 | ret = strcmp (bfd_get_section_name (asec->owner, asec), |
444 | bfd_get_section_name (bsec->owner, bsec)); | |
445 | break; | |
446 | ||
447 | case by_name_alignment: | |
448 | ret = strcmp (bfd_get_section_name (asec->owner, asec), | |
449 | bfd_get_section_name (bsec->owner, bsec)); | |
450 | if (ret) | |
451 | break; | |
452 | /* Fall through. */ | |
453 | ||
454 | case by_alignment: | |
455 | ret = (bfd_section_alignment (bsec->owner, bsec) | |
456 | - bfd_section_alignment (asec->owner, asec)); | |
457 | break; | |
458 | } | |
459 | ||
460 | return ret; | |
461 | } | |
462 | ||
329c1c86 | 463 | /* Build a Binary Search Tree to sort sections, unlike insertion sort |
50c77e5d NC |
464 | used in wild_sort(). BST is considerably faster if the number of |
465 | of sections are large. */ | |
466 | ||
467 | static lang_section_bst_type ** | |
468 | wild_sort_fast (lang_wild_statement_type *wild, | |
329c1c86 AM |
469 | struct wildcard_list *sec, |
470 | lang_input_statement_type *file ATTRIBUTE_UNUSED, | |
471 | asection *section) | |
50c77e5d | 472 | { |
329c1c86 | 473 | lang_section_bst_type **tree; |
50c77e5d | 474 | |
e6f2cbf5 | 475 | tree = &wild->tree; |
50c77e5d | 476 | if (!wild->filenames_sorted |
329c1c86 | 477 | && (sec == NULL || sec->spec.sorted == none)) |
50c77e5d NC |
478 | { |
479 | /* Append at the right end of tree. */ | |
480 | while (*tree) | |
329c1c86 | 481 | tree = &((*tree)->right); |
50c77e5d NC |
482 | return tree; |
483 | } | |
484 | ||
329c1c86 | 485 | while (*tree) |
50c77e5d NC |
486 | { |
487 | /* Find the correct node to append this section. */ | |
329c1c86 AM |
488 | if (compare_section (sec->spec.sorted, section, (*tree)->section) < 0) |
489 | tree = &((*tree)->left); | |
490 | else | |
491 | tree = &((*tree)->right); | |
50c77e5d NC |
492 | } |
493 | ||
494 | return tree; | |
495 | } | |
496 | ||
497 | /* Use wild_sort_fast to build a BST to sort sections. */ | |
498 | ||
499 | static void | |
500 | output_section_callback_fast (lang_wild_statement_type *ptr, | |
329c1c86 AM |
501 | struct wildcard_list *sec, |
502 | asection *section, | |
b9c361e0 | 503 | struct flag_info *sflag_list ATTRIBUTE_UNUSED, |
329c1c86 | 504 | lang_input_statement_type *file, |
d0bf826b | 505 | void *output) |
50c77e5d NC |
506 | { |
507 | lang_section_bst_type *node; | |
508 | lang_section_bst_type **tree; | |
d0bf826b | 509 | lang_output_section_statement_type *os; |
50c77e5d | 510 | |
d0bf826b AM |
511 | os = (lang_output_section_statement_type *) output; |
512 | ||
513 | if (unique_section_p (section, os)) | |
50c77e5d NC |
514 | return; |
515 | ||
1e9cc1c2 | 516 | node = (lang_section_bst_type *) xmalloc (sizeof (lang_section_bst_type)); |
50c77e5d NC |
517 | node->left = 0; |
518 | node->right = 0; | |
519 | node->section = section; | |
520 | ||
521 | tree = wild_sort_fast (ptr, sec, file, section); | |
522 | if (tree != NULL) | |
523 | *tree = node; | |
524 | } | |
525 | ||
526 | /* Convert a sorted sections' BST back to list form. */ | |
527 | ||
528 | static void | |
329c1c86 AM |
529 | output_section_callback_tree_to_list (lang_wild_statement_type *ptr, |
530 | lang_section_bst_type *tree, | |
531 | void *output) | |
50c77e5d NC |
532 | { |
533 | if (tree->left) | |
534 | output_section_callback_tree_to_list (ptr, tree->left, output); | |
535 | ||
b9c361e0 | 536 | lang_add_section (&ptr->children, tree->section, NULL, |
329c1c86 | 537 | (lang_output_section_statement_type *) output); |
50c77e5d NC |
538 | |
539 | if (tree->right) | |
540 | output_section_callback_tree_to_list (ptr, tree->right, output); | |
541 | ||
542 | free (tree); | |
543 | } | |
544 | ||
72223188 JJ |
545 | /* Specialized, optimized routines for handling different kinds of |
546 | wildcards */ | |
547 | ||
548 | static void | |
549 | walk_wild_section_specs1_wild0 (lang_wild_statement_type *ptr, | |
550 | lang_input_statement_type *file, | |
551 | callback_t callback, | |
552 | void *data) | |
553 | { | |
554 | /* We can just do a hash lookup for the section with the right name. | |
555 | But if that lookup discovers more than one section with the name | |
556 | (should be rare), we fall back to the general algorithm because | |
557 | we would otherwise have to sort the sections to make sure they | |
558 | get processed in the bfd's order. */ | |
559 | bfd_boolean multiple_sections_found; | |
560 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
561 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
562 | ||
563 | if (multiple_sections_found) | |
564 | walk_wild_section_general (ptr, file, callback, data); | |
565 | else if (s0) | |
566 | walk_wild_consider_section (ptr, file, s0, sec0, callback, data); | |
567 | } | |
568 | ||
569 | static void | |
570 | walk_wild_section_specs1_wild1 (lang_wild_statement_type *ptr, | |
571 | lang_input_statement_type *file, | |
572 | callback_t callback, | |
573 | void *data) | |
574 | { | |
575 | asection *s; | |
576 | struct wildcard_list *wildsec0 = ptr->handler_data[0]; | |
577 | ||
578 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
579 | { | |
580 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
581 | bfd_boolean skip = !match_simple_wild (wildsec0->spec.name, sname); | |
582 | ||
583 | if (!skip) | |
584 | walk_wild_consider_section (ptr, file, s, wildsec0, callback, data); | |
585 | } | |
586 | } | |
587 | ||
588 | static void | |
589 | walk_wild_section_specs2_wild1 (lang_wild_statement_type *ptr, | |
590 | lang_input_statement_type *file, | |
591 | callback_t callback, | |
592 | void *data) | |
593 | { | |
594 | asection *s; | |
595 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
596 | struct wildcard_list *wildsec1 = ptr->handler_data[1]; | |
597 | bfd_boolean multiple_sections_found; | |
598 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
599 | ||
600 | if (multiple_sections_found) | |
601 | { | |
602 | walk_wild_section_general (ptr, file, callback, data); | |
603 | return; | |
604 | } | |
605 | ||
606 | /* Note that if the section was not found, s0 is NULL and | |
607 | we'll simply never succeed the s == s0 test below. */ | |
608 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
609 | { | |
610 | /* Recall that in this code path, a section cannot satisfy more | |
611 | than one spec, so if s == s0 then it cannot match | |
612 | wildspec1. */ | |
613 | if (s == s0) | |
614 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
615 | else | |
616 | { | |
617 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
618 | bfd_boolean skip = !match_simple_wild (wildsec1->spec.name, sname); | |
619 | ||
620 | if (!skip) | |
621 | walk_wild_consider_section (ptr, file, s, wildsec1, callback, | |
622 | data); | |
623 | } | |
624 | } | |
625 | } | |
626 | ||
627 | static void | |
628 | walk_wild_section_specs3_wild2 (lang_wild_statement_type *ptr, | |
629 | lang_input_statement_type *file, | |
630 | callback_t callback, | |
631 | void *data) | |
632 | { | |
633 | asection *s; | |
634 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
635 | struct wildcard_list *wildsec1 = ptr->handler_data[1]; | |
636 | struct wildcard_list *wildsec2 = ptr->handler_data[2]; | |
637 | bfd_boolean multiple_sections_found; | |
638 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
639 | ||
640 | if (multiple_sections_found) | |
641 | { | |
642 | walk_wild_section_general (ptr, file, callback, data); | |
643 | return; | |
644 | } | |
645 | ||
646 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
647 | { | |
648 | if (s == s0) | |
649 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
650 | else | |
651 | { | |
652 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
653 | bfd_boolean skip = !match_simple_wild (wildsec1->spec.name, sname); | |
654 | ||
655 | if (!skip) | |
656 | walk_wild_consider_section (ptr, file, s, wildsec1, callback, data); | |
657 | else | |
658 | { | |
659 | skip = !match_simple_wild (wildsec2->spec.name, sname); | |
660 | if (!skip) | |
661 | walk_wild_consider_section (ptr, file, s, wildsec2, callback, | |
662 | data); | |
663 | } | |
664 | } | |
665 | } | |
666 | } | |
667 | ||
668 | static void | |
669 | walk_wild_section_specs4_wild2 (lang_wild_statement_type *ptr, | |
670 | lang_input_statement_type *file, | |
671 | callback_t callback, | |
672 | void *data) | |
673 | { | |
674 | asection *s; | |
675 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
676 | struct wildcard_list *sec1 = ptr->handler_data[1]; | |
677 | struct wildcard_list *wildsec2 = ptr->handler_data[2]; | |
678 | struct wildcard_list *wildsec3 = ptr->handler_data[3]; | |
679 | bfd_boolean multiple_sections_found; | |
680 | asection *s0 = find_section (file, sec0, &multiple_sections_found), *s1; | |
681 | ||
682 | if (multiple_sections_found) | |
683 | { | |
684 | walk_wild_section_general (ptr, file, callback, data); | |
685 | return; | |
686 | } | |
687 | ||
688 | s1 = find_section (file, sec1, &multiple_sections_found); | |
689 | if (multiple_sections_found) | |
690 | { | |
691 | walk_wild_section_general (ptr, file, callback, data); | |
692 | return; | |
693 | } | |
694 | ||
695 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
696 | { | |
697 | if (s == s0) | |
698 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
699 | else | |
700 | if (s == s1) | |
701 | walk_wild_consider_section (ptr, file, s, sec1, callback, data); | |
702 | else | |
703 | { | |
704 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
705 | bfd_boolean skip = !match_simple_wild (wildsec2->spec.name, | |
706 | sname); | |
707 | ||
708 | if (!skip) | |
709 | walk_wild_consider_section (ptr, file, s, wildsec2, callback, | |
710 | data); | |
711 | else | |
712 | { | |
713 | skip = !match_simple_wild (wildsec3->spec.name, sname); | |
714 | if (!skip) | |
715 | walk_wild_consider_section (ptr, file, s, wildsec3, | |
716 | callback, data); | |
717 | } | |
718 | } | |
719 | } | |
720 | } | |
721 | ||
722 | static void | |
723 | walk_wild_section (lang_wild_statement_type *ptr, | |
724 | lang_input_statement_type *file, | |
725 | callback_t callback, | |
726 | void *data) | |
727 | { | |
66be1055 | 728 | if (file->flags.just_syms) |
72223188 JJ |
729 | return; |
730 | ||
731 | (*ptr->walk_wild_section_handler) (ptr, file, callback, data); | |
732 | } | |
733 | ||
734 | /* Returns TRUE when name1 is a wildcard spec that might match | |
735 | something name2 can match. We're conservative: we return FALSE | |
736 | only if the prefixes of name1 and name2 are different up to the | |
737 | first wildcard character. */ | |
738 | ||
739 | static bfd_boolean | |
740 | wild_spec_can_overlap (const char *name1, const char *name2) | |
741 | { | |
742 | size_t prefix1_len = strcspn (name1, "?*["); | |
743 | size_t prefix2_len = strcspn (name2, "?*["); | |
744 | size_t min_prefix_len; | |
745 | ||
746 | /* Note that if there is no wildcard character, then we treat the | |
747 | terminating 0 as part of the prefix. Thus ".text" won't match | |
748 | ".text." or ".text.*", for example. */ | |
749 | if (name1[prefix1_len] == '\0') | |
750 | prefix1_len++; | |
751 | if (name2[prefix2_len] == '\0') | |
752 | prefix2_len++; | |
753 | ||
754 | min_prefix_len = prefix1_len < prefix2_len ? prefix1_len : prefix2_len; | |
755 | ||
756 | return memcmp (name1, name2, min_prefix_len) == 0; | |
757 | } | |
758 | ||
759 | /* Select specialized code to handle various kinds of wildcard | |
760 | statements. */ | |
761 | ||
762 | static void | |
763 | analyze_walk_wild_section_handler (lang_wild_statement_type *ptr) | |
764 | { | |
765 | int sec_count = 0; | |
766 | int wild_name_count = 0; | |
767 | struct wildcard_list *sec; | |
768 | int signature; | |
769 | int data_counter; | |
770 | ||
771 | ptr->walk_wild_section_handler = walk_wild_section_general; | |
7544697a AM |
772 | ptr->handler_data[0] = NULL; |
773 | ptr->handler_data[1] = NULL; | |
774 | ptr->handler_data[2] = NULL; | |
775 | ptr->handler_data[3] = NULL; | |
e6f2cbf5 | 776 | ptr->tree = NULL; |
72223188 JJ |
777 | |
778 | /* Count how many wildcard_specs there are, and how many of those | |
779 | actually use wildcards in the name. Also, bail out if any of the | |
780 | wildcard names are NULL. (Can this actually happen? | |
781 | walk_wild_section used to test for it.) And bail out if any | |
782 | of the wildcards are more complex than a simple string | |
783 | ending in a single '*'. */ | |
784 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
785 | { | |
786 | ++sec_count; | |
787 | if (sec->spec.name == NULL) | |
788 | return; | |
789 | if (wildcardp (sec->spec.name)) | |
790 | { | |
791 | ++wild_name_count; | |
792 | if (!is_simple_wild (sec->spec.name)) | |
793 | return; | |
794 | } | |
795 | } | |
796 | ||
797 | /* The zero-spec case would be easy to optimize but it doesn't | |
798 | happen in practice. Likewise, more than 4 specs doesn't | |
799 | happen in practice. */ | |
800 | if (sec_count == 0 || sec_count > 4) | |
801 | return; | |
802 | ||
803 | /* Check that no two specs can match the same section. */ | |
804 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
805 | { | |
806 | struct wildcard_list *sec2; | |
807 | for (sec2 = sec->next; sec2 != NULL; sec2 = sec2->next) | |
808 | { | |
809 | if (wild_spec_can_overlap (sec->spec.name, sec2->spec.name)) | |
810 | return; | |
811 | } | |
812 | } | |
813 | ||
814 | signature = (sec_count << 8) + wild_name_count; | |
815 | switch (signature) | |
816 | { | |
817 | case 0x0100: | |
818 | ptr->walk_wild_section_handler = walk_wild_section_specs1_wild0; | |
819 | break; | |
820 | case 0x0101: | |
821 | ptr->walk_wild_section_handler = walk_wild_section_specs1_wild1; | |
822 | break; | |
823 | case 0x0201: | |
824 | ptr->walk_wild_section_handler = walk_wild_section_specs2_wild1; | |
825 | break; | |
826 | case 0x0302: | |
827 | ptr->walk_wild_section_handler = walk_wild_section_specs3_wild2; | |
828 | break; | |
829 | case 0x0402: | |
830 | ptr->walk_wild_section_handler = walk_wild_section_specs4_wild2; | |
831 | break; | |
832 | default: | |
833 | return; | |
834 | } | |
835 | ||
836 | /* Now fill the data array with pointers to the specs, first the | |
837 | specs with non-wildcard names, then the specs with wildcard | |
838 | names. It's OK to process the specs in different order from the | |
839 | given order, because we've already determined that no section | |
840 | will match more than one spec. */ | |
841 | data_counter = 0; | |
842 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
843 | if (!wildcardp (sec->spec.name)) | |
844 | ptr->handler_data[data_counter++] = sec; | |
845 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
846 | if (wildcardp (sec->spec.name)) | |
847 | ptr->handler_data[data_counter++] = sec; | |
848 | } | |
849 | ||
4dec4d4e RH |
850 | /* Handle a wild statement for a single file F. */ |
851 | ||
852 | static void | |
1579bae1 AM |
853 | walk_wild_file (lang_wild_statement_type *s, |
854 | lang_input_statement_type *f, | |
855 | callback_t callback, | |
856 | void *data) | |
4dec4d4e RH |
857 | { |
858 | if (f->the_bfd == NULL | |
859 | || ! bfd_check_format (f->the_bfd, bfd_archive)) | |
b6bf44ba | 860 | walk_wild_section (s, f, callback, data); |
4dec4d4e RH |
861 | else |
862 | { | |
863 | bfd *member; | |
864 | ||
865 | /* This is an archive file. We must map each member of the | |
866 | archive separately. */ | |
1579bae1 | 867 | member = bfd_openr_next_archived_file (f->the_bfd, NULL); |
4dec4d4e RH |
868 | while (member != NULL) |
869 | { | |
870 | /* When lookup_name is called, it will call the add_symbols | |
871 | entry point for the archive. For each element of the | |
872 | archive which is included, BFD will call ldlang_add_file, | |
873 | which will set the usrdata field of the member to the | |
874 | lang_input_statement. */ | |
875 | if (member->usrdata != NULL) | |
876 | { | |
1e9cc1c2 | 877 | walk_wild_section (s, |
4724d37e RM |
878 | (lang_input_statement_type *) member->usrdata, |
879 | callback, data); | |
4dec4d4e RH |
880 | } |
881 | ||
882 | member = bfd_openr_next_archived_file (f->the_bfd, member); | |
883 | } | |
884 | } | |
885 | } | |
886 | ||
887 | static void | |
1579bae1 | 888 | walk_wild (lang_wild_statement_type *s, callback_t callback, void *data) |
4dec4d4e | 889 | { |
b6bf44ba | 890 | const char *file_spec = s->filename; |
97407faf | 891 | char *p; |
b6bf44ba AM |
892 | |
893 | if (file_spec == NULL) | |
4dec4d4e RH |
894 | { |
895 | /* Perform the iteration over all files in the list. */ | |
e50d8076 | 896 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 897 | { |
b6bf44ba | 898 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
899 | } |
900 | } | |
97407faf AM |
901 | else if ((p = archive_path (file_spec)) != NULL) |
902 | { | |
903 | LANG_FOR_EACH_INPUT_STATEMENT (f) | |
904 | { | |
967928e9 AM |
905 | if (input_statement_is_archive_path (file_spec, p, f)) |
906 | walk_wild_file (s, f, callback, data); | |
97407faf AM |
907 | } |
908 | } | |
b6bf44ba | 909 | else if (wildcardp (file_spec)) |
4dec4d4e | 910 | { |
e50d8076 | 911 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 912 | { |
68bbb9f7 | 913 | if (fnmatch (file_spec, f->filename, 0) == 0) |
b6bf44ba | 914 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
915 | } |
916 | } | |
917 | else | |
918 | { | |
e50d8076 NC |
919 | lang_input_statement_type *f; |
920 | ||
4dec4d4e | 921 | /* Perform the iteration over a single file. */ |
b6bf44ba | 922 | f = lookup_name (file_spec); |
6770ec8c | 923 | if (f) |
b6bf44ba | 924 | walk_wild_file (s, f, callback, data); |
4dec4d4e | 925 | } |
5f992e62 AM |
926 | } |
927 | ||
08da4cac | 928 | /* lang_for_each_statement walks the parse tree and calls the provided |
8658f989 AM |
929 | function for each node, except those inside output section statements |
930 | with constraint set to -1. */ | |
252b5132 | 931 | |
8658f989 | 932 | void |
1579bae1 AM |
933 | lang_for_each_statement_worker (void (*func) (lang_statement_union_type *), |
934 | lang_statement_union_type *s) | |
252b5132 | 935 | { |
1579bae1 | 936 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
937 | { |
938 | func (s); | |
939 | ||
940 | switch (s->header.type) | |
941 | { | |
942 | case lang_constructors_statement_enum: | |
943 | lang_for_each_statement_worker (func, constructor_list.head); | |
944 | break; | |
945 | case lang_output_section_statement_enum: | |
8658f989 AM |
946 | if (s->output_section_statement.constraint != -1) |
947 | lang_for_each_statement_worker | |
948 | (func, s->output_section_statement.children.head); | |
252b5132 RH |
949 | break; |
950 | case lang_wild_statement_enum: | |
6feb9908 AM |
951 | lang_for_each_statement_worker (func, |
952 | s->wild_statement.children.head); | |
252b5132 RH |
953 | break; |
954 | case lang_group_statement_enum: | |
955 | lang_for_each_statement_worker (func, | |
956 | s->group_statement.children.head); | |
957 | break; | |
958 | case lang_data_statement_enum: | |
959 | case lang_reloc_statement_enum: | |
960 | case lang_object_symbols_statement_enum: | |
961 | case lang_output_statement_enum: | |
962 | case lang_target_statement_enum: | |
963 | case lang_input_section_enum: | |
964 | case lang_input_statement_enum: | |
965 | case lang_assignment_statement_enum: | |
966 | case lang_padding_statement_enum: | |
967 | case lang_address_statement_enum: | |
968 | case lang_fill_statement_enum: | |
53d25da6 | 969 | case lang_insert_statement_enum: |
252b5132 RH |
970 | break; |
971 | default: | |
972 | FAIL (); | |
973 | break; | |
974 | } | |
975 | } | |
976 | } | |
977 | ||
978 | void | |
1579bae1 | 979 | lang_for_each_statement (void (*func) (lang_statement_union_type *)) |
252b5132 | 980 | { |
08da4cac | 981 | lang_for_each_statement_worker (func, statement_list.head); |
252b5132 RH |
982 | } |
983 | ||
984 | /*----------------------------------------------------------------------*/ | |
08da4cac | 985 | |
252b5132 | 986 | void |
1579bae1 | 987 | lang_list_init (lang_statement_list_type *list) |
252b5132 | 988 | { |
1579bae1 | 989 | list->head = NULL; |
252b5132 RH |
990 | list->tail = &list->head; |
991 | } | |
992 | ||
bde18da4 AM |
993 | void |
994 | push_stat_ptr (lang_statement_list_type *new_ptr) | |
995 | { | |
996 | if (stat_save_ptr >= stat_save + sizeof (stat_save) / sizeof (stat_save[0])) | |
997 | abort (); | |
998 | *stat_save_ptr++ = stat_ptr; | |
999 | stat_ptr = new_ptr; | |
1000 | } | |
1001 | ||
1002 | void | |
1003 | pop_stat_ptr (void) | |
1004 | { | |
1005 | if (stat_save_ptr <= stat_save) | |
1006 | abort (); | |
1007 | stat_ptr = *--stat_save_ptr; | |
1008 | } | |
1009 | ||
08da4cac | 1010 | /* Build a new statement node for the parse tree. */ |
252b5132 | 1011 | |
08da4cac | 1012 | static lang_statement_union_type * |
1579bae1 AM |
1013 | new_statement (enum statement_enum type, |
1014 | size_t size, | |
1015 | lang_statement_list_type *list) | |
252b5132 | 1016 | { |
d3ce72d0 | 1017 | lang_statement_union_type *new_stmt; |
252b5132 | 1018 | |
d3ce72d0 NC |
1019 | new_stmt = (lang_statement_union_type *) stat_alloc (size); |
1020 | new_stmt->header.type = type; | |
1021 | new_stmt->header.next = NULL; | |
1022 | lang_statement_append (list, new_stmt, &new_stmt->header.next); | |
1023 | return new_stmt; | |
252b5132 RH |
1024 | } |
1025 | ||
08da4cac KH |
1026 | /* Build a new input file node for the language. There are several |
1027 | ways in which we treat an input file, eg, we only look at symbols, | |
1028 | or prefix it with a -l etc. | |
252b5132 | 1029 | |
08da4cac | 1030 | We can be supplied with requests for input files more than once; |
396a2467 | 1031 | they may, for example be split over several lines like foo.o(.text) |
d1778b88 | 1032 | foo.o(.data) etc, so when asked for a file we check that we haven't |
08da4cac | 1033 | got it already so we don't duplicate the bfd. */ |
252b5132 | 1034 | |
252b5132 | 1035 | static lang_input_statement_type * |
1579bae1 AM |
1036 | new_afile (const char *name, |
1037 | lang_input_file_enum_type file_type, | |
1038 | const char *target, | |
1039 | bfd_boolean add_to_list) | |
252b5132 RH |
1040 | { |
1041 | lang_input_statement_type *p; | |
1042 | ||
66be1055 AM |
1043 | lang_has_input_file = TRUE; |
1044 | ||
252b5132 | 1045 | if (add_to_list) |
d3ce72d0 | 1046 | p = (lang_input_statement_type *) new_stat (lang_input_statement, stat_ptr); |
252b5132 RH |
1047 | else |
1048 | { | |
d3ce72d0 | 1049 | p = (lang_input_statement_type *) |
4724d37e | 1050 | stat_alloc (sizeof (lang_input_statement_type)); |
bd4d42c1 | 1051 | p->header.type = lang_input_statement_enum; |
252b5132 RH |
1052 | p->header.next = NULL; |
1053 | } | |
1054 | ||
66be1055 AM |
1055 | memset (&p->the_bfd, 0, |
1056 | sizeof (*p) - offsetof (lang_input_statement_type, the_bfd)); | |
252b5132 | 1057 | p->target = target; |
66be1055 AM |
1058 | p->flags.dynamic = input_flags.dynamic; |
1059 | p->flags.add_DT_NEEDED_for_dynamic = input_flags.add_DT_NEEDED_for_dynamic; | |
1060 | p->flags.add_DT_NEEDED_for_regular = input_flags.add_DT_NEEDED_for_regular; | |
1061 | p->flags.whole_archive = input_flags.whole_archive; | |
f4a23d42 | 1062 | p->flags.sysrooted = input_flags.sysrooted; |
bcb674cf | 1063 | |
252b5132 RH |
1064 | switch (file_type) |
1065 | { | |
1066 | case lang_input_file_is_symbols_only_enum: | |
1067 | p->filename = name; | |
252b5132 | 1068 | p->local_sym_name = name; |
66be1055 AM |
1069 | p->flags.real = TRUE; |
1070 | p->flags.just_syms = TRUE; | |
252b5132 RH |
1071 | break; |
1072 | case lang_input_file_is_fake_enum: | |
1073 | p->filename = name; | |
252b5132 | 1074 | p->local_sym_name = name; |
252b5132 RH |
1075 | break; |
1076 | case lang_input_file_is_l_enum: | |
d4ae5fb0 AM |
1077 | if (name[0] == ':' && name[1] != '\0') |
1078 | { | |
1079 | p->filename = name + 1; | |
1080 | p->flags.full_name_provided = TRUE; | |
1081 | } | |
1082 | else | |
1083 | p->filename = name; | |
ff7a0acf | 1084 | p->local_sym_name = concat ("-l", name, (const char *) NULL); |
66be1055 AM |
1085 | p->flags.maybe_archive = TRUE; |
1086 | p->flags.real = TRUE; | |
1087 | p->flags.search_dirs = TRUE; | |
252b5132 RH |
1088 | break; |
1089 | case lang_input_file_is_marker_enum: | |
1090 | p->filename = name; | |
252b5132 | 1091 | p->local_sym_name = name; |
66be1055 | 1092 | p->flags.search_dirs = TRUE; |
252b5132 RH |
1093 | break; |
1094 | case lang_input_file_is_search_file_enum: | |
1095 | p->filename = name; | |
252b5132 | 1096 | p->local_sym_name = name; |
66be1055 AM |
1097 | p->flags.real = TRUE; |
1098 | p->flags.search_dirs = TRUE; | |
252b5132 RH |
1099 | break; |
1100 | case lang_input_file_is_file_enum: | |
1101 | p->filename = name; | |
252b5132 | 1102 | p->local_sym_name = name; |
66be1055 | 1103 | p->flags.real = TRUE; |
252b5132 RH |
1104 | break; |
1105 | default: | |
1106 | FAIL (); | |
1107 | } | |
c4b78195 | 1108 | |
252b5132 RH |
1109 | lang_statement_append (&input_file_chain, |
1110 | (lang_statement_union_type *) p, | |
1111 | &p->next_real_file); | |
1112 | return p; | |
1113 | } | |
1114 | ||
1115 | lang_input_statement_type * | |
1579bae1 AM |
1116 | lang_add_input_file (const char *name, |
1117 | lang_input_file_enum_type file_type, | |
1118 | const char *target) | |
252b5132 | 1119 | { |
b34976b6 | 1120 | return new_afile (name, file_type, target, TRUE); |
252b5132 RH |
1121 | } |
1122 | ||
409d7240 | 1123 | struct out_section_hash_entry |
750877ba L |
1124 | { |
1125 | struct bfd_hash_entry root; | |
409d7240 | 1126 | lang_statement_union_type s; |
750877ba L |
1127 | }; |
1128 | ||
1129 | /* The hash table. */ | |
1130 | ||
409d7240 | 1131 | static struct bfd_hash_table output_section_statement_table; |
750877ba | 1132 | |
384a9dda | 1133 | /* Support routines for the hash table used by lang_output_section_find, |
750877ba L |
1134 | initialize the table, fill in an entry and remove the table. */ |
1135 | ||
1136 | static struct bfd_hash_entry * | |
329c1c86 | 1137 | output_section_statement_newfunc (struct bfd_hash_entry *entry, |
409d7240 AM |
1138 | struct bfd_hash_table *table, |
1139 | const char *string) | |
750877ba | 1140 | { |
384a9dda | 1141 | lang_output_section_statement_type **nextp; |
409d7240 | 1142 | struct out_section_hash_entry *ret; |
384a9dda AM |
1143 | |
1144 | if (entry == NULL) | |
1145 | { | |
1e9cc1c2 | 1146 | entry = (struct bfd_hash_entry *) bfd_hash_allocate (table, |
4724d37e | 1147 | sizeof (*ret)); |
384a9dda AM |
1148 | if (entry == NULL) |
1149 | return entry; | |
1150 | } | |
1151 | ||
1152 | entry = bfd_hash_newfunc (entry, table, string); | |
1153 | if (entry == NULL) | |
1154 | return entry; | |
1155 | ||
409d7240 AM |
1156 | ret = (struct out_section_hash_entry *) entry; |
1157 | memset (&ret->s, 0, sizeof (ret->s)); | |
1158 | ret->s.header.type = lang_output_section_statement_enum; | |
1159 | ret->s.output_section_statement.subsection_alignment = -1; | |
1160 | ret->s.output_section_statement.section_alignment = -1; | |
1161 | ret->s.output_section_statement.block_value = 1; | |
1162 | lang_list_init (&ret->s.output_section_statement.children); | |
1163 | lang_statement_append (stat_ptr, &ret->s, &ret->s.header.next); | |
384a9dda | 1164 | |
218868ba AM |
1165 | /* For every output section statement added to the list, except the |
1166 | first one, lang_output_section_statement.tail points to the "next" | |
1167 | field of the last element of the list. */ | |
1168 | if (lang_output_section_statement.head != NULL) | |
409d7240 AM |
1169 | ret->s.output_section_statement.prev |
1170 | = ((lang_output_section_statement_type *) | |
1171 | ((char *) lang_output_section_statement.tail | |
1172 | - offsetof (lang_output_section_statement_type, next))); | |
218868ba | 1173 | |
384a9dda AM |
1174 | /* GCC's strict aliasing rules prevent us from just casting the |
1175 | address, so we store the pointer in a variable and cast that | |
1176 | instead. */ | |
409d7240 | 1177 | nextp = &ret->s.output_section_statement.next; |
384a9dda | 1178 | lang_statement_append (&lang_output_section_statement, |
409d7240 | 1179 | &ret->s, |
384a9dda AM |
1180 | (lang_statement_union_type **) nextp); |
1181 | return &ret->root; | |
750877ba L |
1182 | } |
1183 | ||
1184 | static void | |
409d7240 | 1185 | output_section_statement_table_init (void) |
750877ba | 1186 | { |
409d7240 AM |
1187 | if (!bfd_hash_table_init_n (&output_section_statement_table, |
1188 | output_section_statement_newfunc, | |
1189 | sizeof (struct out_section_hash_entry), | |
66eb6687 | 1190 | 61)) |
384a9dda | 1191 | einfo (_("%P%F: can not create hash table: %E\n")); |
750877ba L |
1192 | } |
1193 | ||
1194 | static void | |
409d7240 | 1195 | output_section_statement_table_free (void) |
750877ba | 1196 | { |
409d7240 | 1197 | bfd_hash_table_free (&output_section_statement_table); |
750877ba L |
1198 | } |
1199 | ||
08da4cac KH |
1200 | /* Build enough state so that the parser can build its tree. */ |
1201 | ||
252b5132 | 1202 | void |
1579bae1 | 1203 | lang_init (void) |
252b5132 RH |
1204 | { |
1205 | obstack_begin (&stat_obstack, 1000); | |
1206 | ||
1207 | stat_ptr = &statement_list; | |
1208 | ||
409d7240 | 1209 | output_section_statement_table_init (); |
750877ba | 1210 | |
252b5132 RH |
1211 | lang_list_init (stat_ptr); |
1212 | ||
1213 | lang_list_init (&input_file_chain); | |
1214 | lang_list_init (&lang_output_section_statement); | |
1215 | lang_list_init (&file_chain); | |
1579bae1 AM |
1216 | first_file = lang_add_input_file (NULL, lang_input_file_is_marker_enum, |
1217 | NULL); | |
08da4cac | 1218 | abs_output_section = |
66c103b7 | 1219 | lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME, 0, TRUE); |
252b5132 RH |
1220 | |
1221 | abs_output_section->bfd_section = bfd_abs_section_ptr; | |
420e579c | 1222 | |
fa72205c AM |
1223 | /* The value "13" is ad-hoc, somewhat related to the expected number of |
1224 | assignments in a linker script. */ | |
688c58f3 | 1225 | if (!bfd_hash_table_init_n (&lang_definedness_table, |
66eb6687 AM |
1226 | lang_definedness_newfunc, |
1227 | sizeof (struct lang_definedness_hash_entry), | |
fa72205c | 1228 | 13)) |
384a9dda | 1229 | einfo (_("%P%F: can not create hash table: %E\n")); |
16e4ecc0 AM |
1230 | |
1231 | asneeded_list_head = NULL; | |
1232 | asneeded_list_tail = &asneeded_list_head; | |
252b5132 RH |
1233 | } |
1234 | ||
750877ba L |
1235 | void |
1236 | lang_finish (void) | |
1237 | { | |
61087d8c | 1238 | bfd_hash_table_free (&lang_definedness_table); |
409d7240 | 1239 | output_section_statement_table_free (); |
750877ba L |
1240 | } |
1241 | ||
252b5132 | 1242 | /*---------------------------------------------------------------------- |
08da4cac KH |
1243 | A region is an area of memory declared with the |
1244 | MEMORY { name:org=exp, len=exp ... } | |
1245 | syntax. | |
252b5132 | 1246 | |
08da4cac | 1247 | We maintain a list of all the regions here. |
252b5132 | 1248 | |
08da4cac | 1249 | If no regions are specified in the script, then the default is used |
a747ee4d NC |
1250 | which is created when looked up to be the entire data space. |
1251 | ||
1252 | If create is true we are creating a region inside a MEMORY block. | |
1253 | In this case it is probably an error to create a region that has | |
1254 | already been created. If we are not inside a MEMORY block it is | |
1255 | dubious to use an undeclared region name (except DEFAULT_MEMORY_REGION) | |
4a93e180 | 1256 | and so we issue a warning. |
1e0061d2 | 1257 | |
4a93e180 NC |
1258 | Each region has at least one name. The first name is either |
1259 | DEFAULT_MEMORY_REGION or the name given in the MEMORY block. You can add | |
1260 | alias names to an existing region within a script with | |
1261 | REGION_ALIAS (alias, region_name). Each name corresponds to at most one | |
1262 | region. */ | |
252b5132 RH |
1263 | |
1264 | static lang_memory_region_type *lang_memory_region_list; | |
6feb9908 AM |
1265 | static lang_memory_region_type **lang_memory_region_list_tail |
1266 | = &lang_memory_region_list; | |
252b5132 RH |
1267 | |
1268 | lang_memory_region_type * | |
a747ee4d | 1269 | lang_memory_region_lookup (const char *const name, bfd_boolean create) |
252b5132 | 1270 | { |
4a93e180 NC |
1271 | lang_memory_region_name *n; |
1272 | lang_memory_region_type *r; | |
d3ce72d0 | 1273 | lang_memory_region_type *new_region; |
252b5132 | 1274 | |
9f88b410 RS |
1275 | /* NAME is NULL for LMA memspecs if no region was specified. */ |
1276 | if (name == NULL) | |
1277 | return NULL; | |
1278 | ||
4a93e180 NC |
1279 | for (r = lang_memory_region_list; r != NULL; r = r->next) |
1280 | for (n = &r->name_list; n != NULL; n = n->next) | |
1281 | if (strcmp (n->name, name) == 0) | |
4724d37e RM |
1282 | { |
1283 | if (create) | |
1284 | einfo (_("%P:%S: warning: redeclaration of memory region `%s'\n"), | |
1285 | NULL, name); | |
1286 | return r; | |
1287 | } | |
252b5132 | 1288 | |
a747ee4d | 1289 | if (!create && strcmp (name, DEFAULT_MEMORY_REGION)) |
dab69f68 AM |
1290 | einfo (_("%P:%S: warning: memory region `%s' not declared\n"), |
1291 | NULL, name); | |
a747ee4d | 1292 | |
d3ce72d0 NC |
1293 | new_region = (lang_memory_region_type *) |
1294 | stat_alloc (sizeof (lang_memory_region_type)); | |
252b5132 | 1295 | |
d3ce72d0 NC |
1296 | new_region->name_list.name = xstrdup (name); |
1297 | new_region->name_list.next = NULL; | |
1298 | new_region->next = NULL; | |
1299 | new_region->origin = 0; | |
1300 | new_region->length = ~(bfd_size_type) 0; | |
1301 | new_region->current = 0; | |
1302 | new_region->last_os = NULL; | |
1303 | new_region->flags = 0; | |
1304 | new_region->not_flags = 0; | |
1305 | new_region->had_full_message = FALSE; | |
252b5132 | 1306 | |
d3ce72d0 NC |
1307 | *lang_memory_region_list_tail = new_region; |
1308 | lang_memory_region_list_tail = &new_region->next; | |
66e28d60 | 1309 | |
d3ce72d0 | 1310 | return new_region; |
252b5132 RH |
1311 | } |
1312 | ||
4a93e180 NC |
1313 | void |
1314 | lang_memory_region_alias (const char * alias, const char * region_name) | |
1315 | { | |
1316 | lang_memory_region_name * n; | |
1317 | lang_memory_region_type * r; | |
1318 | lang_memory_region_type * region; | |
1319 | ||
1320 | /* The default region must be unique. This ensures that it is not necessary | |
1321 | to iterate through the name list if someone wants the check if a region is | |
1322 | the default memory region. */ | |
1323 | if (strcmp (region_name, DEFAULT_MEMORY_REGION) == 0 | |
1324 | || strcmp (alias, DEFAULT_MEMORY_REGION) == 0) | |
dab69f68 | 1325 | einfo (_("%F%P:%S: error: alias for default memory region\n"), NULL); |
4a93e180 NC |
1326 | |
1327 | /* Look for the target region and check if the alias is not already | |
1328 | in use. */ | |
1329 | region = NULL; | |
1330 | for (r = lang_memory_region_list; r != NULL; r = r->next) | |
1331 | for (n = &r->name_list; n != NULL; n = n->next) | |
1332 | { | |
4724d37e RM |
1333 | if (region == NULL && strcmp (n->name, region_name) == 0) |
1334 | region = r; | |
1335 | if (strcmp (n->name, alias) == 0) | |
1336 | einfo (_("%F%P:%S: error: redefinition of memory region " | |
1337 | "alias `%s'\n"), | |
1338 | NULL, alias); | |
4a93e180 NC |
1339 | } |
1340 | ||
1341 | /* Check if the target region exists. */ | |
1342 | if (region == NULL) | |
1343 | einfo (_("%F%P:%S: error: memory region `%s' " | |
4724d37e RM |
1344 | "for alias `%s' does not exist\n"), |
1345 | NULL, region_name, alias); | |
4a93e180 NC |
1346 | |
1347 | /* Add alias to region name list. */ | |
1e9cc1c2 | 1348 | n = (lang_memory_region_name *) stat_alloc (sizeof (lang_memory_region_name)); |
4a93e180 NC |
1349 | n->name = xstrdup (alias); |
1350 | n->next = region->name_list.next; | |
1351 | region->name_list.next = n; | |
1352 | } | |
1353 | ||
5f992e62 | 1354 | static lang_memory_region_type * |
4a93e180 | 1355 | lang_memory_default (asection * section) |
252b5132 RH |
1356 | { |
1357 | lang_memory_region_type *p; | |
1358 | ||
1359 | flagword sec_flags = section->flags; | |
1360 | ||
1361 | /* Override SEC_DATA to mean a writable section. */ | |
1362 | if ((sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE)) == SEC_ALLOC) | |
1363 | sec_flags |= SEC_DATA; | |
1364 | ||
1579bae1 | 1365 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
252b5132 RH |
1366 | { |
1367 | if ((p->flags & sec_flags) != 0 | |
1368 | && (p->not_flags & sec_flags) == 0) | |
1369 | { | |
1370 | return p; | |
1371 | } | |
1372 | } | |
a747ee4d | 1373 | return lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE); |
252b5132 RH |
1374 | } |
1375 | ||
24ef1aa7 GM |
1376 | /* Get the output section statement directly from the userdata. */ |
1377 | ||
1378 | lang_output_section_statement_type * | |
1379 | lang_output_section_get (const asection *output_section) | |
1380 | { | |
1381 | return get_userdata (output_section); | |
1382 | } | |
1383 | ||
d127ecce AM |
1384 | /* Find or create an output_section_statement with the given NAME. |
1385 | If CONSTRAINT is non-zero match one with that constraint, otherwise | |
1386 | match any non-negative constraint. If CREATE, always make a | |
1387 | new output_section_statement for SPECIAL CONSTRAINT. */ | |
1388 | ||
384a9dda | 1389 | lang_output_section_statement_type * |
d127ecce | 1390 | lang_output_section_statement_lookup (const char *name, |
66c103b7 AM |
1391 | int constraint, |
1392 | bfd_boolean create) | |
252b5132 | 1393 | { |
409d7240 | 1394 | struct out_section_hash_entry *entry; |
252b5132 | 1395 | |
409d7240 AM |
1396 | entry = ((struct out_section_hash_entry *) |
1397 | bfd_hash_lookup (&output_section_statement_table, name, | |
66c103b7 | 1398 | create, FALSE)); |
384a9dda AM |
1399 | if (entry == NULL) |
1400 | { | |
66c103b7 AM |
1401 | if (create) |
1402 | einfo (_("%P%F: failed creating section `%s': %E\n"), name); | |
384a9dda AM |
1403 | return NULL; |
1404 | } | |
252b5132 | 1405 | |
409d7240 | 1406 | if (entry->s.output_section_statement.name != NULL) |
252b5132 | 1407 | { |
384a9dda AM |
1408 | /* We have a section of this name, but it might not have the correct |
1409 | constraint. */ | |
66c103b7 | 1410 | struct out_section_hash_entry *last_ent; |
66c103b7 | 1411 | |
d127ecce | 1412 | name = entry->s.output_section_statement.name; |
8a99a385 AM |
1413 | if (create && constraint == SPECIAL) |
1414 | /* Not traversing to the end reverses the order of the second | |
1415 | and subsequent SPECIAL sections in the hash table chain, | |
1416 | but that shouldn't matter. */ | |
1417 | last_ent = entry; | |
1418 | else | |
1419 | do | |
1420 | { | |
d127ecce AM |
1421 | if (constraint == entry->s.output_section_statement.constraint |
1422 | || (constraint == 0 | |
1423 | && entry->s.output_section_statement.constraint >= 0)) | |
8a99a385 AM |
1424 | return &entry->s.output_section_statement; |
1425 | last_ent = entry; | |
1426 | entry = (struct out_section_hash_entry *) entry->root.next; | |
1427 | } | |
1428 | while (entry != NULL | |
d127ecce | 1429 | && name == entry->s.output_section_statement.name); |
252b5132 | 1430 | |
66c103b7 AM |
1431 | if (!create) |
1432 | return NULL; | |
1433 | ||
409d7240 AM |
1434 | entry |
1435 | = ((struct out_section_hash_entry *) | |
1436 | output_section_statement_newfunc (NULL, | |
1437 | &output_section_statement_table, | |
1438 | name)); | |
750877ba | 1439 | if (entry == NULL) |
384a9dda AM |
1440 | { |
1441 | einfo (_("%P%F: failed creating section `%s': %E\n"), name); | |
1442 | return NULL; | |
1443 | } | |
1444 | entry->root = last_ent->root; | |
1445 | last_ent->root.next = &entry->root; | |
252b5132 | 1446 | } |
384a9dda | 1447 | |
409d7240 AM |
1448 | entry->s.output_section_statement.name = name; |
1449 | entry->s.output_section_statement.constraint = constraint; | |
1450 | return &entry->s.output_section_statement; | |
252b5132 RH |
1451 | } |
1452 | ||
d127ecce AM |
1453 | /* Find the next output_section_statement with the same name as OS. |
1454 | If CONSTRAINT is non-zero, find one with that constraint otherwise | |
1455 | match any non-negative constraint. */ | |
1456 | ||
1457 | lang_output_section_statement_type * | |
1458 | next_matching_output_section_statement (lang_output_section_statement_type *os, | |
1459 | int constraint) | |
1460 | { | |
1461 | /* All output_section_statements are actually part of a | |
1462 | struct out_section_hash_entry. */ | |
1463 | struct out_section_hash_entry *entry = (struct out_section_hash_entry *) | |
1464 | ((char *) os | |
1465 | - offsetof (struct out_section_hash_entry, s.output_section_statement)); | |
1466 | const char *name = os->name; | |
1467 | ||
1468 | ASSERT (name == entry->root.string); | |
1469 | do | |
1470 | { | |
1471 | entry = (struct out_section_hash_entry *) entry->root.next; | |
1472 | if (entry == NULL | |
1473 | || name != entry->s.output_section_statement.name) | |
1474 | return NULL; | |
1475 | } | |
1476 | while (constraint != entry->s.output_section_statement.constraint | |
1477 | && (constraint != 0 | |
1478 | || entry->s.output_section_statement.constraint < 0)); | |
1479 | ||
1480 | return &entry->s.output_section_statement; | |
1481 | } | |
1482 | ||
afd7a018 AM |
1483 | /* A variant of lang_output_section_find used by place_orphan. |
1484 | Returns the output statement that should precede a new output | |
1485 | statement for SEC. If an exact match is found on certain flags, | |
1486 | sets *EXACT too. */ | |
1487 | ||
1488 | lang_output_section_statement_type * | |
1489 | lang_output_section_find_by_flags (const asection *sec, | |
390fbbf1 AM |
1490 | lang_output_section_statement_type **exact, |
1491 | lang_match_sec_type_func match_type) | |
afd7a018 AM |
1492 | { |
1493 | lang_output_section_statement_type *first, *look, *found; | |
d9d94ac8 | 1494 | flagword look_flags, sec_flags, differ; |
afd7a018 AM |
1495 | |
1496 | /* We know the first statement on this list is *ABS*. May as well | |
1497 | skip it. */ | |
1498 | first = &lang_output_section_statement.head->output_section_statement; | |
1499 | first = first->next; | |
1500 | ||
1501 | /* First try for an exact match. */ | |
d9d94ac8 | 1502 | sec_flags = sec->flags; |
afd7a018 AM |
1503 | found = NULL; |
1504 | for (look = first; look; look = look->next) | |
1505 | { | |
d9d94ac8 | 1506 | look_flags = look->flags; |
afd7a018 | 1507 | if (look->bfd_section != NULL) |
ecca9871 | 1508 | { |
d9d94ac8 | 1509 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1510 | if (match_type && !match_type (link_info.output_bfd, |
1511 | look->bfd_section, | |
390fbbf1 | 1512 | sec->owner, sec)) |
ecca9871 L |
1513 | continue; |
1514 | } | |
d9d94ac8 AM |
1515 | differ = look_flags ^ sec_flags; |
1516 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
1517 | | SEC_CODE | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
afd7a018 AM |
1518 | found = look; |
1519 | } | |
1520 | if (found != NULL) | |
1521 | { | |
390fbbf1 AM |
1522 | if (exact != NULL) |
1523 | *exact = found; | |
afd7a018 AM |
1524 | return found; |
1525 | } | |
1526 | ||
d9d94ac8 AM |
1527 | if ((sec_flags & SEC_CODE) != 0 |
1528 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1529 | { |
1530 | /* Try for a rw code section. */ | |
1531 | for (look = first; look; look = look->next) | |
1532 | { | |
d9d94ac8 | 1533 | look_flags = look->flags; |
afd7a018 | 1534 | if (look->bfd_section != NULL) |
ecca9871 | 1535 | { |
d9d94ac8 | 1536 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1537 | if (match_type && !match_type (link_info.output_bfd, |
1538 | look->bfd_section, | |
390fbbf1 | 1539 | sec->owner, sec)) |
ecca9871 L |
1540 | continue; |
1541 | } | |
d9d94ac8 AM |
1542 | differ = look_flags ^ sec_flags; |
1543 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1544 | | SEC_CODE | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
afd7a018 AM |
1545 | found = look; |
1546 | } | |
afd7a018 | 1547 | } |
d9d94ac8 AM |
1548 | else if ((sec_flags & SEC_READONLY) != 0 |
1549 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1550 | { |
1551 | /* .rodata can go after .text, .sdata2 after .rodata. */ | |
1552 | for (look = first; look; look = look->next) | |
1553 | { | |
d9d94ac8 | 1554 | look_flags = look->flags; |
afd7a018 | 1555 | if (look->bfd_section != NULL) |
ecca9871 | 1556 | { |
d9d94ac8 | 1557 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1558 | if (match_type && !match_type (link_info.output_bfd, |
1559 | look->bfd_section, | |
390fbbf1 | 1560 | sec->owner, sec)) |
ecca9871 L |
1561 | continue; |
1562 | } | |
d9d94ac8 AM |
1563 | differ = look_flags ^ sec_flags; |
1564 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1565 | | SEC_READONLY | SEC_SMALL_DATA)) | |
1566 | || (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1567 | | SEC_READONLY)) | |
1568 | && !(look_flags & SEC_SMALL_DATA))) | |
afd7a018 AM |
1569 | found = look; |
1570 | } | |
afd7a018 | 1571 | } |
d9d94ac8 AM |
1572 | else if ((sec_flags & SEC_THREAD_LOCAL) != 0 |
1573 | && (sec_flags & SEC_ALLOC) != 0) | |
1574 | { | |
1575 | /* .tdata can go after .data, .tbss after .tdata. Treat .tbss | |
1576 | as if it were a loaded section, and don't use match_type. */ | |
1577 | bfd_boolean seen_thread_local = FALSE; | |
1578 | ||
1579 | match_type = NULL; | |
1580 | for (look = first; look; look = look->next) | |
1581 | { | |
1582 | look_flags = look->flags; | |
1583 | if (look->bfd_section != NULL) | |
1584 | look_flags = look->bfd_section->flags; | |
1585 | ||
1586 | differ = look_flags ^ (sec_flags | SEC_LOAD | SEC_HAS_CONTENTS); | |
1587 | if (!(differ & (SEC_THREAD_LOCAL | SEC_ALLOC))) | |
1588 | { | |
1589 | /* .tdata and .tbss must be adjacent and in that order. */ | |
1590 | if (!(look_flags & SEC_LOAD) | |
1591 | && (sec_flags & SEC_LOAD)) | |
1592 | /* ..so if we're at a .tbss section and we're placing | |
1593 | a .tdata section stop looking and return the | |
1594 | previous section. */ | |
1595 | break; | |
1596 | found = look; | |
1597 | seen_thread_local = TRUE; | |
1598 | } | |
1599 | else if (seen_thread_local) | |
1600 | break; | |
1601 | else if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD))) | |
1602 | found = look; | |
1603 | } | |
1604 | } | |
1605 | else if ((sec_flags & SEC_SMALL_DATA) != 0 | |
1606 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1607 | { |
1608 | /* .sdata goes after .data, .sbss after .sdata. */ | |
1609 | for (look = first; look; look = look->next) | |
1610 | { | |
d9d94ac8 | 1611 | look_flags = look->flags; |
afd7a018 | 1612 | if (look->bfd_section != NULL) |
ecca9871 | 1613 | { |
d9d94ac8 | 1614 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1615 | if (match_type && !match_type (link_info.output_bfd, |
1616 | look->bfd_section, | |
390fbbf1 | 1617 | sec->owner, sec)) |
ecca9871 L |
1618 | continue; |
1619 | } | |
d9d94ac8 AM |
1620 | differ = look_flags ^ sec_flags; |
1621 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1622 | | SEC_THREAD_LOCAL)) | |
1623 | || ((look_flags & SEC_SMALL_DATA) | |
1624 | && !(sec_flags & SEC_HAS_CONTENTS))) | |
afd7a018 AM |
1625 | found = look; |
1626 | } | |
afd7a018 | 1627 | } |
d9d94ac8 AM |
1628 | else if ((sec_flags & SEC_HAS_CONTENTS) != 0 |
1629 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1630 | { |
1631 | /* .data goes after .rodata. */ | |
1632 | for (look = first; look; look = look->next) | |
1633 | { | |
d9d94ac8 | 1634 | look_flags = look->flags; |
afd7a018 | 1635 | if (look->bfd_section != NULL) |
ecca9871 | 1636 | { |
d9d94ac8 | 1637 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1638 | if (match_type && !match_type (link_info.output_bfd, |
1639 | look->bfd_section, | |
390fbbf1 | 1640 | sec->owner, sec)) |
ecca9871 L |
1641 | continue; |
1642 | } | |
d9d94ac8 AM |
1643 | differ = look_flags ^ sec_flags; |
1644 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1645 | | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
afd7a018 AM |
1646 | found = look; |
1647 | } | |
afd7a018 | 1648 | } |
d9d94ac8 | 1649 | else if ((sec_flags & SEC_ALLOC) != 0) |
afd7a018 | 1650 | { |
07890c07 | 1651 | /* .bss goes after any other alloc section. */ |
390fbbf1 | 1652 | for (look = first; look; look = look->next) |
ecca9871 | 1653 | { |
d9d94ac8 | 1654 | look_flags = look->flags; |
390fbbf1 AM |
1655 | if (look->bfd_section != NULL) |
1656 | { | |
d9d94ac8 | 1657 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1658 | if (match_type && !match_type (link_info.output_bfd, |
1659 | look->bfd_section, | |
390fbbf1 AM |
1660 | sec->owner, sec)) |
1661 | continue; | |
1662 | } | |
d9d94ac8 AM |
1663 | differ = look_flags ^ sec_flags; |
1664 | if (!(differ & SEC_ALLOC)) | |
390fbbf1 | 1665 | found = look; |
ecca9871 | 1666 | } |
afd7a018 | 1667 | } |
07890c07 AM |
1668 | else |
1669 | { | |
1670 | /* non-alloc go last. */ | |
1671 | for (look = first; look; look = look->next) | |
1672 | { | |
d9d94ac8 | 1673 | look_flags = look->flags; |
07890c07 | 1674 | if (look->bfd_section != NULL) |
d9d94ac8 AM |
1675 | look_flags = look->bfd_section->flags; |
1676 | differ = look_flags ^ sec_flags; | |
1677 | if (!(differ & SEC_DEBUGGING)) | |
07890c07 AM |
1678 | found = look; |
1679 | } | |
1680 | return found; | |
1681 | } | |
afd7a018 | 1682 | |
390fbbf1 AM |
1683 | if (found || !match_type) |
1684 | return found; | |
1685 | ||
1686 | return lang_output_section_find_by_flags (sec, NULL, NULL); | |
afd7a018 AM |
1687 | } |
1688 | ||
1689 | /* Find the last output section before given output statement. | |
1690 | Used by place_orphan. */ | |
1691 | ||
1692 | static asection * | |
1693 | output_prev_sec_find (lang_output_section_statement_type *os) | |
1694 | { | |
afd7a018 AM |
1695 | lang_output_section_statement_type *lookup; |
1696 | ||
218868ba | 1697 | for (lookup = os->prev; lookup != NULL; lookup = lookup->prev) |
afd7a018 | 1698 | { |
66c103b7 | 1699 | if (lookup->constraint < 0) |
afd7a018 | 1700 | continue; |
afd7a018 AM |
1701 | |
1702 | if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL) | |
218868ba | 1703 | return lookup->bfd_section; |
afd7a018 AM |
1704 | } |
1705 | ||
1706 | return NULL; | |
1707 | } | |
1708 | ||
53d25da6 AM |
1709 | /* Look for a suitable place for a new output section statement. The |
1710 | idea is to skip over anything that might be inside a SECTIONS {} | |
1711 | statement in a script, before we find another output section | |
1712 | statement. Assignments to "dot" before an output section statement | |
0fa4d7cf AM |
1713 | are assumed to belong to it, except in two cases; The first |
1714 | assignment to dot, and assignments before non-alloc sections. | |
1715 | Otherwise we might put an orphan before . = . + SIZEOF_HEADERS or | |
1716 | similar assignments that set the initial address, or we might | |
1717 | insert non-alloc note sections among assignments setting end of | |
1718 | image symbols. */ | |
53d25da6 AM |
1719 | |
1720 | static lang_statement_union_type ** | |
1721 | insert_os_after (lang_output_section_statement_type *after) | |
1722 | { | |
1723 | lang_statement_union_type **where; | |
1724 | lang_statement_union_type **assign = NULL; | |
1725 | bfd_boolean ignore_first; | |
1726 | ||
1727 | ignore_first | |
1728 | = after == &lang_output_section_statement.head->output_section_statement; | |
1729 | ||
1730 | for (where = &after->header.next; | |
1731 | *where != NULL; | |
1732 | where = &(*where)->header.next) | |
1733 | { | |
1734 | switch ((*where)->header.type) | |
1735 | { | |
1736 | case lang_assignment_statement_enum: | |
1737 | if (assign == NULL) | |
1738 | { | |
1739 | lang_assignment_statement_type *ass; | |
1740 | ||
1741 | ass = &(*where)->assignment_statement; | |
1742 | if (ass->exp->type.node_class != etree_assert | |
1743 | && ass->exp->assign.dst[0] == '.' | |
1744 | && ass->exp->assign.dst[1] == 0 | |
1745 | && !ignore_first) | |
1746 | assign = where; | |
1747 | } | |
1748 | ignore_first = FALSE; | |
1749 | continue; | |
1750 | case lang_wild_statement_enum: | |
1751 | case lang_input_section_enum: | |
1752 | case lang_object_symbols_statement_enum: | |
1753 | case lang_fill_statement_enum: | |
1754 | case lang_data_statement_enum: | |
1755 | case lang_reloc_statement_enum: | |
1756 | case lang_padding_statement_enum: | |
1757 | case lang_constructors_statement_enum: | |
1758 | assign = NULL; | |
1759 | continue; | |
1760 | case lang_output_section_statement_enum: | |
1761 | if (assign != NULL) | |
0fa4d7cf AM |
1762 | { |
1763 | asection *s = (*where)->output_section_statement.bfd_section; | |
1764 | ||
249b2a84 L |
1765 | if (s == NULL |
1766 | || s->map_head.s == NULL | |
1767 | || (s->flags & SEC_ALLOC) != 0) | |
0fa4d7cf AM |
1768 | where = assign; |
1769 | } | |
53d25da6 AM |
1770 | break; |
1771 | case lang_input_statement_enum: | |
1772 | case lang_address_statement_enum: | |
1773 | case lang_target_statement_enum: | |
1774 | case lang_output_statement_enum: | |
1775 | case lang_group_statement_enum: | |
1776 | case lang_insert_statement_enum: | |
1777 | continue; | |
1778 | } | |
1779 | break; | |
1780 | } | |
1781 | ||
1782 | return where; | |
1783 | } | |
1784 | ||
afd7a018 | 1785 | lang_output_section_statement_type * |
7b986e99 | 1786 | lang_insert_orphan (asection *s, |
afd7a018 | 1787 | const char *secname, |
8a99a385 | 1788 | int constraint, |
afd7a018 AM |
1789 | lang_output_section_statement_type *after, |
1790 | struct orphan_save *place, | |
1791 | etree_type *address, | |
1792 | lang_statement_list_type *add_child) | |
1793 | { | |
afd7a018 AM |
1794 | lang_statement_list_type add; |
1795 | const char *ps; | |
afd7a018 AM |
1796 | lang_output_section_statement_type *os; |
1797 | lang_output_section_statement_type **os_tail; | |
1798 | ||
afd7a018 AM |
1799 | /* If we have found an appropriate place for the output section |
1800 | statements for this orphan, add them to our own private list, | |
1801 | inserting them later into the global statement list. */ | |
1802 | if (after != NULL) | |
1803 | { | |
bde18da4 AM |
1804 | lang_list_init (&add); |
1805 | push_stat_ptr (&add); | |
afd7a018 AM |
1806 | } |
1807 | ||
011aa75f AM |
1808 | if (link_info.relocatable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0) |
1809 | address = exp_intop (0); | |
1810 | ||
1811 | os_tail = ((lang_output_section_statement_type **) | |
1812 | lang_output_section_statement.tail); | |
1e9cc1c2 | 1813 | os = lang_enter_output_section_statement (secname, address, normal_section, |
1eec346e | 1814 | NULL, NULL, NULL, constraint, 0); |
011aa75f | 1815 | |
afd7a018 | 1816 | ps = NULL; |
011aa75f | 1817 | if (config.build_constructors && *os_tail == os) |
afd7a018 AM |
1818 | { |
1819 | /* If the name of the section is representable in C, then create | |
1820 | symbols to mark the start and the end of the section. */ | |
1821 | for (ps = secname; *ps != '\0'; ps++) | |
1822 | if (! ISALNUM ((unsigned char) *ps) && *ps != '_') | |
1823 | break; | |
1824 | if (*ps == '\0') | |
1825 | { | |
1826 | char *symname; | |
afd7a018 AM |
1827 | |
1828 | symname = (char *) xmalloc (ps - secname + sizeof "__start_" + 1); | |
f13a99db | 1829 | symname[0] = bfd_get_symbol_leading_char (link_info.output_bfd); |
afd7a018 | 1830 | sprintf (symname + (symname[0] != 0), "__start_%s", secname); |
34711ca3 | 1831 | lang_add_assignment (exp_provide (symname, |
d9476c5a | 1832 | exp_nameop (NAME, "."), |
34711ca3 | 1833 | FALSE)); |
afd7a018 AM |
1834 | } |
1835 | } | |
1836 | ||
afd7a018 AM |
1837 | if (add_child == NULL) |
1838 | add_child = &os->children; | |
b9c361e0 | 1839 | lang_add_section (add_child, s, NULL, os); |
afd7a018 | 1840 | |
f77c3948 DJ |
1841 | if (after && (s->flags & (SEC_LOAD | SEC_ALLOC)) != 0) |
1842 | { | |
1843 | const char *region = (after->region | |
1844 | ? after->region->name_list.name | |
1845 | : DEFAULT_MEMORY_REGION); | |
1846 | const char *lma_region = (after->lma_region | |
1847 | ? after->lma_region->name_list.name | |
1848 | : NULL); | |
1849 | lang_leave_output_section_statement (NULL, region, after->phdrs, | |
1850 | lma_region); | |
1851 | } | |
1852 | else | |
1853 | lang_leave_output_section_statement (NULL, DEFAULT_MEMORY_REGION, NULL, | |
1854 | NULL); | |
afd7a018 | 1855 | |
011aa75f | 1856 | if (ps != NULL && *ps == '\0') |
afd7a018 AM |
1857 | { |
1858 | char *symname; | |
1859 | ||
afd7a018 | 1860 | symname = (char *) xmalloc (ps - secname + sizeof "__stop_" + 1); |
f13a99db | 1861 | symname[0] = bfd_get_symbol_leading_char (link_info.output_bfd); |
afd7a018 | 1862 | sprintf (symname + (symname[0] != 0), "__stop_%s", secname); |
34711ca3 AM |
1863 | lang_add_assignment (exp_provide (symname, |
1864 | exp_nameop (NAME, "."), | |
1865 | FALSE)); | |
afd7a018 AM |
1866 | } |
1867 | ||
1868 | /* Restore the global list pointer. */ | |
1869 | if (after != NULL) | |
bde18da4 | 1870 | pop_stat_ptr (); |
afd7a018 AM |
1871 | |
1872 | if (after != NULL && os->bfd_section != NULL) | |
1873 | { | |
5daa8fe7 | 1874 | asection *snew, *as; |
afd7a018 AM |
1875 | |
1876 | snew = os->bfd_section; | |
1877 | ||
1878 | /* Shuffle the bfd section list to make the output file look | |
1879 | neater. This is really only cosmetic. */ | |
1880 | if (place->section == NULL | |
1881 | && after != (&lang_output_section_statement.head | |
1882 | ->output_section_statement)) | |
1883 | { | |
1884 | asection *bfd_section = after->bfd_section; | |
1885 | ||
1886 | /* If the output statement hasn't been used to place any input | |
1887 | sections (and thus doesn't have an output bfd_section), | |
1888 | look for the closest prior output statement having an | |
1889 | output section. */ | |
1890 | if (bfd_section == NULL) | |
1891 | bfd_section = output_prev_sec_find (after); | |
1892 | ||
1893 | if (bfd_section != NULL && bfd_section != snew) | |
1894 | place->section = &bfd_section->next; | |
1895 | } | |
1896 | ||
1897 | if (place->section == NULL) | |
f13a99db | 1898 | place->section = &link_info.output_bfd->sections; |
afd7a018 | 1899 | |
5daa8fe7 | 1900 | as = *place->section; |
5e542ba7 MS |
1901 | |
1902 | if (!as) | |
329c1c86 AM |
1903 | { |
1904 | /* Put the section at the end of the list. */ | |
5e542ba7 MS |
1905 | |
1906 | /* Unlink the section. */ | |
f13a99db | 1907 | bfd_section_list_remove (link_info.output_bfd, snew); |
5e542ba7 MS |
1908 | |
1909 | /* Now tack it back on in the right place. */ | |
f13a99db | 1910 | bfd_section_list_append (link_info.output_bfd, snew); |
329c1c86 | 1911 | } |
5e542ba7 | 1912 | else if (as != snew && as->prev != snew) |
5daa8fe7 L |
1913 | { |
1914 | /* Unlink the section. */ | |
f13a99db | 1915 | bfd_section_list_remove (link_info.output_bfd, snew); |
afd7a018 | 1916 | |
5daa8fe7 | 1917 | /* Now tack it back on in the right place. */ |
f13a99db | 1918 | bfd_section_list_insert_before (link_info.output_bfd, as, snew); |
5daa8fe7 | 1919 | } |
afd7a018 AM |
1920 | |
1921 | /* Save the end of this list. Further ophans of this type will | |
1922 | follow the one we've just added. */ | |
1923 | place->section = &snew->next; | |
1924 | ||
1925 | /* The following is non-cosmetic. We try to put the output | |
1926 | statements in some sort of reasonable order here, because they | |
1927 | determine the final load addresses of the orphan sections. | |
1928 | In addition, placing output statements in the wrong order may | |
1929 | require extra segments. For instance, given a typical | |
1930 | situation of all read-only sections placed in one segment and | |
1931 | following that a segment containing all the read-write | |
1932 | sections, we wouldn't want to place an orphan read/write | |
1933 | section before or amongst the read-only ones. */ | |
1934 | if (add.head != NULL) | |
1935 | { | |
1936 | lang_output_section_statement_type *newly_added_os; | |
1937 | ||
1938 | if (place->stmt == NULL) | |
1939 | { | |
53d25da6 | 1940 | lang_statement_union_type **where = insert_os_after (after); |
afd7a018 AM |
1941 | |
1942 | *add.tail = *where; | |
1943 | *where = add.head; | |
1944 | ||
1945 | place->os_tail = &after->next; | |
1946 | } | |
1947 | else | |
1948 | { | |
1949 | /* Put it after the last orphan statement we added. */ | |
1950 | *add.tail = *place->stmt; | |
1951 | *place->stmt = add.head; | |
1952 | } | |
1953 | ||
1954 | /* Fix the global list pointer if we happened to tack our | |
1955 | new list at the tail. */ | |
bde18da4 AM |
1956 | if (*stat_ptr->tail == add.head) |
1957 | stat_ptr->tail = add.tail; | |
afd7a018 AM |
1958 | |
1959 | /* Save the end of this list. */ | |
1960 | place->stmt = add.tail; | |
1961 | ||
1962 | /* Do the same for the list of output section statements. */ | |
1963 | newly_added_os = *os_tail; | |
1964 | *os_tail = NULL; | |
218868ba AM |
1965 | newly_added_os->prev = (lang_output_section_statement_type *) |
1966 | ((char *) place->os_tail | |
1967 | - offsetof (lang_output_section_statement_type, next)); | |
afd7a018 | 1968 | newly_added_os->next = *place->os_tail; |
218868ba AM |
1969 | if (newly_added_os->next != NULL) |
1970 | newly_added_os->next->prev = newly_added_os; | |
afd7a018 AM |
1971 | *place->os_tail = newly_added_os; |
1972 | place->os_tail = &newly_added_os->next; | |
1973 | ||
1974 | /* Fixing the global list pointer here is a little different. | |
1975 | We added to the list in lang_enter_output_section_statement, | |
1976 | trimmed off the new output_section_statment above when | |
1977 | assigning *os_tail = NULL, but possibly added it back in | |
1978 | the same place when assigning *place->os_tail. */ | |
1979 | if (*os_tail == NULL) | |
1980 | lang_output_section_statement.tail | |
1981 | = (lang_statement_union_type **) os_tail; | |
1982 | } | |
1983 | } | |
1984 | return os; | |
1985 | } | |
1986 | ||
16e4ecc0 AM |
1987 | static void |
1988 | lang_print_asneeded (void) | |
1989 | { | |
1990 | struct asneeded_minfo *m; | |
1991 | char buf[100]; | |
1992 | ||
1993 | if (asneeded_list_head == NULL) | |
1994 | return; | |
1995 | ||
1996 | sprintf (buf, _("\nAs-needed library included " | |
1997 | "to satisfy reference by file (symbol)\n\n")); | |
1998 | minfo ("%s", buf); | |
1999 | ||
2000 | for (m = asneeded_list_head; m != NULL; m = m->next) | |
2001 | { | |
2002 | size_t len; | |
2003 | ||
2004 | minfo ("%s", m->soname); | |
2005 | len = strlen (m->soname); | |
2006 | ||
2007 | if (len >= 29) | |
2008 | { | |
2009 | print_nl (); | |
2010 | len = 0; | |
2011 | } | |
2012 | while (len < 30) | |
2013 | { | |
2014 | print_space (); | |
2015 | ++len; | |
2016 | } | |
2017 | ||
2018 | if (m->ref != NULL) | |
2019 | minfo ("%B ", m->ref); | |
2020 | minfo ("(%T)\n", m->name); | |
2021 | } | |
2022 | } | |
2023 | ||
252b5132 | 2024 | static void |
1579bae1 | 2025 | lang_map_flags (flagword flag) |
252b5132 RH |
2026 | { |
2027 | if (flag & SEC_ALLOC) | |
2028 | minfo ("a"); | |
2029 | ||
2030 | if (flag & SEC_CODE) | |
2031 | minfo ("x"); | |
2032 | ||
2033 | if (flag & SEC_READONLY) | |
2034 | minfo ("r"); | |
2035 | ||
2036 | if (flag & SEC_DATA) | |
2037 | minfo ("w"); | |
2038 | ||
2039 | if (flag & SEC_LOAD) | |
2040 | minfo ("l"); | |
2041 | } | |
2042 | ||
2043 | void | |
1579bae1 | 2044 | lang_map (void) |
252b5132 RH |
2045 | { |
2046 | lang_memory_region_type *m; | |
4d4920ec | 2047 | bfd_boolean dis_header_printed = FALSE; |
252b5132 | 2048 | |
4d4920ec EB |
2049 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
2050 | { | |
2051 | asection *s; | |
2052 | ||
2053 | if ((file->the_bfd->flags & (BFD_LINKER_CREATED | DYNAMIC)) != 0 | |
66be1055 | 2054 | || file->flags.just_syms) |
4d4920ec EB |
2055 | continue; |
2056 | ||
2057 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
a14a5de3 | 2058 | if ((s->output_section == NULL |
f13a99db | 2059 | || s->output_section->owner != link_info.output_bfd) |
a14a5de3 | 2060 | && (s->flags & (SEC_LINKER_CREATED | SEC_KEEP)) == 0) |
4d4920ec EB |
2061 | { |
2062 | if (! dis_header_printed) | |
2063 | { | |
2064 | fprintf (config.map_file, _("\nDiscarded input sections\n\n")); | |
2065 | dis_header_printed = TRUE; | |
2066 | } | |
2067 | ||
d64703c6 | 2068 | print_input_section (s, TRUE); |
4d4920ec EB |
2069 | } |
2070 | } | |
2071 | ||
252b5132 RH |
2072 | minfo (_("\nMemory Configuration\n\n")); |
2073 | fprintf (config.map_file, "%-16s %-18s %-18s %s\n", | |
2074 | _("Name"), _("Origin"), _("Length"), _("Attributes")); | |
2075 | ||
1579bae1 | 2076 | for (m = lang_memory_region_list; m != NULL; m = m->next) |
252b5132 RH |
2077 | { |
2078 | char buf[100]; | |
2079 | int len; | |
2080 | ||
4a93e180 | 2081 | fprintf (config.map_file, "%-16s ", m->name_list.name); |
252b5132 RH |
2082 | |
2083 | sprintf_vma (buf, m->origin); | |
2084 | minfo ("0x%s ", buf); | |
2085 | len = strlen (buf); | |
2086 | while (len < 16) | |
2087 | { | |
2088 | print_space (); | |
2089 | ++len; | |
2090 | } | |
2091 | ||
2092 | minfo ("0x%V", m->length); | |
2093 | if (m->flags || m->not_flags) | |
2094 | { | |
2095 | #ifndef BFD64 | |
2096 | minfo (" "); | |
2097 | #endif | |
2098 | if (m->flags) | |
2099 | { | |
2100 | print_space (); | |
2101 | lang_map_flags (m->flags); | |
2102 | } | |
2103 | ||
2104 | if (m->not_flags) | |
2105 | { | |
2106 | minfo (" !"); | |
2107 | lang_map_flags (m->not_flags); | |
2108 | } | |
2109 | } | |
2110 | ||
2111 | print_nl (); | |
2112 | } | |
2113 | ||
2114 | fprintf (config.map_file, _("\nLinker script and memory map\n\n")); | |
2115 | ||
c0f00686 | 2116 | if (! link_info.reduce_memory_overheads) |
35835446 JR |
2117 | { |
2118 | obstack_begin (&map_obstack, 1000); | |
35835446 JR |
2119 | bfd_link_hash_traverse (link_info.hash, sort_def_symbol, 0); |
2120 | } | |
fa72205c | 2121 | lang_statement_iteration++; |
252b5132 | 2122 | print_statements (); |
7a2f2d82 DD |
2123 | |
2124 | ldemul_extra_map_file_text (link_info.output_bfd, &link_info, config.map_file); | |
252b5132 RH |
2125 | } |
2126 | ||
35835446 | 2127 | static bfd_boolean |
967928e9 AM |
2128 | sort_def_symbol (struct bfd_link_hash_entry *hash_entry, |
2129 | void *info ATTRIBUTE_UNUSED) | |
35835446 | 2130 | { |
6fcc66ab AM |
2131 | if ((hash_entry->type == bfd_link_hash_defined |
2132 | || hash_entry->type == bfd_link_hash_defweak) | |
2133 | && hash_entry->u.def.section->owner != link_info.output_bfd | |
2134 | && hash_entry->u.def.section->owner != NULL) | |
35835446 | 2135 | { |
6fcc66ab | 2136 | input_section_userdata_type *ud; |
35835446 JR |
2137 | struct map_symbol_def *def; |
2138 | ||
6fcc66ab AM |
2139 | ud = ((input_section_userdata_type *) |
2140 | get_userdata (hash_entry->u.def.section)); | |
2141 | if (!ud) | |
35835446 | 2142 | { |
6fcc66ab AM |
2143 | ud = (input_section_userdata_type *) stat_alloc (sizeof (*ud)); |
2144 | get_userdata (hash_entry->u.def.section) = ud; | |
2145 | ud->map_symbol_def_tail = &ud->map_symbol_def_head; | |
2146 | ud->map_symbol_def_count = 0; | |
35835446 | 2147 | } |
6fcc66ab | 2148 | else if (!ud->map_symbol_def_tail) |
35835446 | 2149 | ud->map_symbol_def_tail = &ud->map_symbol_def_head; |
afd7a018 | 2150 | |
1e9cc1c2 | 2151 | def = (struct map_symbol_def *) obstack_alloc (&map_obstack, sizeof *def); |
35835446 | 2152 | def->entry = hash_entry; |
76d7af2d | 2153 | *(ud->map_symbol_def_tail) = def; |
35835446 | 2154 | ud->map_symbol_def_tail = &def->next; |
02688209 | 2155 | ud->map_symbol_def_count++; |
35835446 JR |
2156 | } |
2157 | return TRUE; | |
2158 | } | |
2159 | ||
252b5132 RH |
2160 | /* Initialize an output section. */ |
2161 | ||
2162 | static void | |
dfa7b0b8 | 2163 | init_os (lang_output_section_statement_type *s, flagword flags) |
252b5132 | 2164 | { |
252b5132 | 2165 | if (strcmp (s->name, DISCARD_SECTION_NAME) == 0) |
6f9efd97 | 2166 | einfo (_("%P%F: Illegal use of `%s' section\n"), DISCARD_SECTION_NAME); |
252b5132 | 2167 | |
8a99a385 AM |
2168 | if (s->constraint != SPECIAL) |
2169 | s->bfd_section = bfd_get_section_by_name (link_info.output_bfd, s->name); | |
1579bae1 | 2170 | if (s->bfd_section == NULL) |
8a99a385 AM |
2171 | s->bfd_section = bfd_make_section_anyway_with_flags (link_info.output_bfd, |
2172 | s->name, flags); | |
1579bae1 | 2173 | if (s->bfd_section == NULL) |
252b5132 RH |
2174 | { |
2175 | einfo (_("%P%F: output format %s cannot represent section called %s\n"), | |
f13a99db | 2176 | link_info.output_bfd->xvec->name, s->name); |
252b5132 RH |
2177 | } |
2178 | s->bfd_section->output_section = s->bfd_section; | |
252b5132 | 2179 | s->bfd_section->output_offset = 0; |
e0f6802f | 2180 | |
24ef1aa7 GM |
2181 | /* Set the userdata of the output section to the output section |
2182 | statement to avoid lookup. */ | |
2183 | get_userdata (s->bfd_section) = s; | |
2184 | ||
a431bc2e AM |
2185 | /* If there is a base address, make sure that any sections it might |
2186 | mention are initialized. */ | |
2187 | if (s->addr_tree != NULL) | |
2188 | exp_init_os (s->addr_tree); | |
2189 | ||
2190 | if (s->load_base != NULL) | |
2191 | exp_init_os (s->load_base); | |
2192 | ||
7270c5ed AM |
2193 | /* If supplied an alignment, set it. */ |
2194 | if (s->section_alignment != -1) | |
2195 | s->bfd_section->alignment_power = s->section_alignment; | |
252b5132 RH |
2196 | } |
2197 | ||
2198 | /* Make sure that all output sections mentioned in an expression are | |
2199 | initialized. */ | |
2200 | ||
2201 | static void | |
1579bae1 | 2202 | exp_init_os (etree_type *exp) |
252b5132 RH |
2203 | { |
2204 | switch (exp->type.node_class) | |
2205 | { | |
2206 | case etree_assign: | |
9f4fb502 | 2207 | case etree_provide: |
252b5132 RH |
2208 | exp_init_os (exp->assign.src); |
2209 | break; | |
2210 | ||
2211 | case etree_binary: | |
2212 | exp_init_os (exp->binary.lhs); | |
2213 | exp_init_os (exp->binary.rhs); | |
2214 | break; | |
2215 | ||
2216 | case etree_trinary: | |
2217 | exp_init_os (exp->trinary.cond); | |
2218 | exp_init_os (exp->trinary.lhs); | |
2219 | exp_init_os (exp->trinary.rhs); | |
2220 | break; | |
2221 | ||
b6ca8815 NS |
2222 | case etree_assert: |
2223 | exp_init_os (exp->assert_s.child); | |
2224 | break; | |
afd7a018 | 2225 | |
252b5132 RH |
2226 | case etree_unary: |
2227 | exp_init_os (exp->unary.child); | |
2228 | break; | |
2229 | ||
2230 | case etree_name: | |
2231 | switch (exp->type.node_code) | |
2232 | { | |
2233 | case ADDR: | |
2234 | case LOADADDR: | |
2235 | case SIZEOF: | |
2236 | { | |
2237 | lang_output_section_statement_type *os; | |
2238 | ||
2239 | os = lang_output_section_find (exp->name.name); | |
2240 | if (os != NULL && os->bfd_section == NULL) | |
dfa7b0b8 | 2241 | init_os (os, 0); |
252b5132 RH |
2242 | } |
2243 | } | |
2244 | break; | |
2245 | ||
2246 | default: | |
2247 | break; | |
2248 | } | |
2249 | } | |
9503fd87 | 2250 | \f |
252b5132 | 2251 | static void |
1579bae1 | 2252 | section_already_linked (bfd *abfd, asection *sec, void *data) |
252b5132 | 2253 | { |
1e9cc1c2 | 2254 | lang_input_statement_type *entry = (lang_input_statement_type *) data; |
252b5132 RH |
2255 | |
2256 | /* If we are only reading symbols from this object, then we want to | |
2257 | discard all sections. */ | |
66be1055 | 2258 | if (entry->flags.just_syms) |
252b5132 | 2259 | { |
1449d79b | 2260 | bfd_link_just_syms (abfd, sec, &link_info); |
252b5132 RH |
2261 | return; |
2262 | } | |
2263 | ||
ace66bb2 | 2264 | if (!(abfd->flags & DYNAMIC)) |
c77ec726 | 2265 | bfd_section_already_linked (abfd, sec, &link_info); |
252b5132 RH |
2266 | } |
2267 | \f | |
2268 | /* The wild routines. | |
2269 | ||
2270 | These expand statements like *(.text) and foo.o to a list of | |
2271 | explicit actions, like foo.o(.text), bar.o(.text) and | |
2272 | foo.o(.text, .data). */ | |
2273 | ||
252b5132 | 2274 | /* Add SECTION to the output section OUTPUT. Do this by creating a |
b9c361e0 | 2275 | lang_input_section statement which is placed at PTR. */ |
252b5132 RH |
2276 | |
2277 | void | |
1579bae1 AM |
2278 | lang_add_section (lang_statement_list_type *ptr, |
2279 | asection *section, | |
b9c361e0 | 2280 | struct flag_info *sflag_info, |
7b986e99 | 2281 | lang_output_section_statement_type *output) |
252b5132 | 2282 | { |
164e712d | 2283 | flagword flags = section->flags; |
ae17ab41 | 2284 | |
b34976b6 | 2285 | bfd_boolean discard; |
dfa7b0b8 | 2286 | lang_input_section_type *new_section; |
ae17ab41 | 2287 | bfd *abfd = link_info.output_bfd; |
252b5132 | 2288 | |
e49f5022 | 2289 | /* Discard sections marked with SEC_EXCLUDE. */ |
b3096250 | 2290 | discard = (flags & SEC_EXCLUDE) != 0; |
252b5132 RH |
2291 | |
2292 | /* Discard input sections which are assigned to a section named | |
2293 | DISCARD_SECTION_NAME. */ | |
2294 | if (strcmp (output->name, DISCARD_SECTION_NAME) == 0) | |
b34976b6 | 2295 | discard = TRUE; |
252b5132 RH |
2296 | |
2297 | /* Discard debugging sections if we are stripping debugging | |
2298 | information. */ | |
2299 | if ((link_info.strip == strip_debugger || link_info.strip == strip_all) | |
2300 | && (flags & SEC_DEBUGGING) != 0) | |
b34976b6 | 2301 | discard = TRUE; |
252b5132 RH |
2302 | |
2303 | if (discard) | |
2304 | { | |
2305 | if (section->output_section == NULL) | |
2306 | { | |
2307 | /* This prevents future calls from assigning this section. */ | |
2308 | section->output_section = bfd_abs_section_ptr; | |
2309 | } | |
2310 | return; | |
2311 | } | |
2312 | ||
ae17ab41 CM |
2313 | if (sflag_info) |
2314 | { | |
b9c361e0 | 2315 | bfd_boolean keep; |
ae17ab41 | 2316 | |
b9c361e0 JL |
2317 | keep = bfd_lookup_section_flags (&link_info, sflag_info, section); |
2318 | if (!keep) | |
4724d37e | 2319 | return; |
ae17ab41 CM |
2320 | } |
2321 | ||
dfa7b0b8 AM |
2322 | if (section->output_section != NULL) |
2323 | return; | |
252b5132 | 2324 | |
dfa7b0b8 AM |
2325 | /* We don't copy the SEC_NEVER_LOAD flag from an input section |
2326 | to an output section, because we want to be able to include a | |
2327 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
2328 | section (I don't know why we want to do this, but we do). | |
2329 | build_link_order in ldwrite.c handles this case by turning | |
2330 | the embedded SEC_NEVER_LOAD section into a fill. */ | |
2331 | flags &= ~ SEC_NEVER_LOAD; | |
8423293d | 2332 | |
dfa7b0b8 AM |
2333 | /* If final link, don't copy the SEC_LINK_ONCE flags, they've |
2334 | already been processed. One reason to do this is that on pe | |
2335 | format targets, .text$foo sections go into .text and it's odd | |
2336 | to see .text with SEC_LINK_ONCE set. */ | |
252b5132 | 2337 | |
dfa7b0b8 | 2338 | if (!link_info.relocatable) |
0814be7d | 2339 | flags &= ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC); |
252b5132 | 2340 | |
dfa7b0b8 AM |
2341 | switch (output->sectype) |
2342 | { | |
2343 | case normal_section: | |
2344 | case overlay_section: | |
2345 | break; | |
2346 | case noalloc_section: | |
2347 | flags &= ~SEC_ALLOC; | |
2348 | break; | |
2349 | case noload_section: | |
2350 | flags &= ~SEC_LOAD; | |
2351 | flags |= SEC_NEVER_LOAD; | |
f4eaaf7f AM |
2352 | /* Unfortunately GNU ld has managed to evolve two different |
2353 | meanings to NOLOAD in scripts. ELF gets a .bss style noload, | |
2354 | alloc, no contents section. All others get a noload, noalloc | |
2355 | section. */ | |
2356 | if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour) | |
2e76e85a | 2357 | flags &= ~SEC_HAS_CONTENTS; |
f4eaaf7f AM |
2358 | else |
2359 | flags &= ~SEC_ALLOC; | |
dfa7b0b8 AM |
2360 | break; |
2361 | } | |
252b5132 | 2362 | |
dfa7b0b8 AM |
2363 | if (output->bfd_section == NULL) |
2364 | init_os (output, flags); | |
252b5132 | 2365 | |
dfa7b0b8 AM |
2366 | /* If SEC_READONLY is not set in the input section, then clear |
2367 | it from the output section. */ | |
2368 | output->bfd_section->flags &= flags | ~SEC_READONLY; | |
252b5132 | 2369 | |
dfa7b0b8 AM |
2370 | if (output->bfd_section->linker_has_input) |
2371 | { | |
2372 | /* Only set SEC_READONLY flag on the first input section. */ | |
2373 | flags &= ~ SEC_READONLY; | |
252b5132 | 2374 | |
f5fa8ca2 | 2375 | /* Keep SEC_MERGE and SEC_STRINGS only if they are the same. */ |
dfa7b0b8 AM |
2376 | if ((output->bfd_section->flags & (SEC_MERGE | SEC_STRINGS)) |
2377 | != (flags & (SEC_MERGE | SEC_STRINGS)) | |
2378 | || ((flags & SEC_MERGE) != 0 | |
2379 | && output->bfd_section->entsize != section->entsize)) | |
f5fa8ca2 | 2380 | { |
afd7a018 | 2381 | output->bfd_section->flags &= ~ (SEC_MERGE | SEC_STRINGS); |
f5fa8ca2 JJ |
2382 | flags &= ~ (SEC_MERGE | SEC_STRINGS); |
2383 | } | |
dfa7b0b8 AM |
2384 | } |
2385 | output->bfd_section->flags |= flags; | |
f5fa8ca2 | 2386 | |
dfa7b0b8 AM |
2387 | if (!output->bfd_section->linker_has_input) |
2388 | { | |
2389 | output->bfd_section->linker_has_input = 1; | |
2390 | /* This must happen after flags have been updated. The output | |
2391 | section may have been created before we saw its first input | |
2392 | section, eg. for a data statement. */ | |
2393 | bfd_init_private_section_data (section->owner, section, | |
2394 | link_info.output_bfd, | |
2395 | output->bfd_section, | |
2396 | &link_info); | |
2397 | if ((flags & SEC_MERGE) != 0) | |
afd7a018 | 2398 | output->bfd_section->entsize = section->entsize; |
dfa7b0b8 | 2399 | } |
f5fa8ca2 | 2400 | |
dfa7b0b8 AM |
2401 | if ((flags & SEC_TIC54X_BLOCK) != 0 |
2402 | && bfd_get_arch (section->owner) == bfd_arch_tic54x) | |
2403 | { | |
2404 | /* FIXME: This value should really be obtained from the bfd... */ | |
2405 | output->block_value = 128; | |
2406 | } | |
252b5132 | 2407 | |
dfa7b0b8 AM |
2408 | if (section->alignment_power > output->bfd_section->alignment_power) |
2409 | output->bfd_section->alignment_power = section->alignment_power; | |
9e41f973 | 2410 | |
dfa7b0b8 | 2411 | section->output_section = output->bfd_section; |
252b5132 | 2412 | |
dfa7b0b8 AM |
2413 | if (!link_info.relocatable |
2414 | && !stripped_excluded_sections) | |
2415 | { | |
2416 | asection *s = output->bfd_section->map_tail.s; | |
2417 | output->bfd_section->map_tail.s = section; | |
2418 | section->map_head.s = NULL; | |
2419 | section->map_tail.s = s; | |
2420 | if (s != NULL) | |
2421 | s->map_head.s = section; | |
2422 | else | |
2423 | output->bfd_section->map_head.s = section; | |
252b5132 | 2424 | } |
dfa7b0b8 AM |
2425 | |
2426 | /* Add a section reference to the list. */ | |
2427 | new_section = new_stat (lang_input_section, ptr); | |
2428 | new_section->section = section; | |
252b5132 RH |
2429 | } |
2430 | ||
2431 | /* Handle wildcard sorting. This returns the lang_input_section which | |
2432 | should follow the one we are going to create for SECTION and FILE, | |
2433 | based on the sorting requirements of WILD. It returns NULL if the | |
2434 | new section should just go at the end of the current list. */ | |
2435 | ||
2436 | static lang_statement_union_type * | |
1579bae1 AM |
2437 | wild_sort (lang_wild_statement_type *wild, |
2438 | struct wildcard_list *sec, | |
2439 | lang_input_statement_type *file, | |
2440 | asection *section) | |
252b5132 | 2441 | { |
252b5132 RH |
2442 | lang_statement_union_type *l; |
2443 | ||
bcaa7b3e L |
2444 | if (!wild->filenames_sorted |
2445 | && (sec == NULL || sec->spec.sorted == none)) | |
252b5132 RH |
2446 | return NULL; |
2447 | ||
bba1a0c0 | 2448 | for (l = wild->children.head; l != NULL; l = l->header.next) |
252b5132 RH |
2449 | { |
2450 | lang_input_section_type *ls; | |
2451 | ||
2452 | if (l->header.type != lang_input_section_enum) | |
2453 | continue; | |
2454 | ls = &l->input_section; | |
2455 | ||
2456 | /* Sorting by filename takes precedence over sorting by section | |
afd7a018 | 2457 | name. */ |
252b5132 RH |
2458 | |
2459 | if (wild->filenames_sorted) | |
2460 | { | |
2461 | const char *fn, *ln; | |
b34976b6 | 2462 | bfd_boolean fa, la; |
252b5132 RH |
2463 | int i; |
2464 | ||
2465 | /* The PE support for the .idata section as generated by | |
afd7a018 AM |
2466 | dlltool assumes that files will be sorted by the name of |
2467 | the archive and then the name of the file within the | |
2468 | archive. */ | |
252b5132 RH |
2469 | |
2470 | if (file->the_bfd != NULL | |
2471 | && bfd_my_archive (file->the_bfd) != NULL) | |
2472 | { | |
2473 | fn = bfd_get_filename (bfd_my_archive (file->the_bfd)); | |
b34976b6 | 2474 | fa = TRUE; |
252b5132 RH |
2475 | } |
2476 | else | |
2477 | { | |
2478 | fn = file->filename; | |
b34976b6 | 2479 | fa = FALSE; |
252b5132 RH |
2480 | } |
2481 | ||
7b986e99 | 2482 | if (bfd_my_archive (ls->section->owner) != NULL) |
252b5132 | 2483 | { |
7b986e99 | 2484 | ln = bfd_get_filename (bfd_my_archive (ls->section->owner)); |
b34976b6 | 2485 | la = TRUE; |
252b5132 RH |
2486 | } |
2487 | else | |
2488 | { | |
7b986e99 | 2489 | ln = ls->section->owner->filename; |
b34976b6 | 2490 | la = FALSE; |
252b5132 RH |
2491 | } |
2492 | ||
42627821 | 2493 | i = filename_cmp (fn, ln); |
252b5132 RH |
2494 | if (i > 0) |
2495 | continue; | |
2496 | else if (i < 0) | |
2497 | break; | |
2498 | ||
2499 | if (fa || la) | |
2500 | { | |
2501 | if (fa) | |
2502 | fn = file->filename; | |
2503 | if (la) | |
7b986e99 | 2504 | ln = ls->section->owner->filename; |
252b5132 | 2505 | |
42627821 | 2506 | i = filename_cmp (fn, ln); |
252b5132 RH |
2507 | if (i > 0) |
2508 | continue; | |
2509 | else if (i < 0) | |
2510 | break; | |
2511 | } | |
2512 | } | |
2513 | ||
2514 | /* Here either the files are not sorted by name, or we are | |
afd7a018 | 2515 | looking at the sections for this file. */ |
252b5132 | 2516 | |
b2e4da5a L |
2517 | if (sec != NULL |
2518 | && sec->spec.sorted != none | |
2519 | && sec->spec.sorted != by_none) | |
32124d5b AM |
2520 | if (compare_section (sec->spec.sorted, section, ls->section) < 0) |
2521 | break; | |
252b5132 RH |
2522 | } |
2523 | ||
2524 | return l; | |
2525 | } | |
2526 | ||
2527 | /* Expand a wild statement for a particular FILE. SECTION may be | |
2528 | NULL, in which case it is a wild card. */ | |
2529 | ||
2530 | static void | |
1579bae1 AM |
2531 | output_section_callback (lang_wild_statement_type *ptr, |
2532 | struct wildcard_list *sec, | |
2533 | asection *section, | |
b9c361e0 | 2534 | struct flag_info *sflag_info, |
1579bae1 AM |
2535 | lang_input_statement_type *file, |
2536 | void *output) | |
4dec4d4e RH |
2537 | { |
2538 | lang_statement_union_type *before; | |
d0bf826b AM |
2539 | lang_output_section_statement_type *os; |
2540 | ||
2541 | os = (lang_output_section_statement_type *) output; | |
5f992e62 | 2542 | |
b6bf44ba | 2543 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
d0bf826b | 2544 | if (unique_section_p (section, os)) |
b6bf44ba AM |
2545 | return; |
2546 | ||
b6bf44ba | 2547 | before = wild_sort (ptr, sec, file, section); |
5f992e62 | 2548 | |
4dec4d4e RH |
2549 | /* Here BEFORE points to the lang_input_section which |
2550 | should follow the one we are about to add. If BEFORE | |
2551 | is NULL, then the section should just go at the end | |
2552 | of the current list. */ | |
5f992e62 | 2553 | |
4dec4d4e | 2554 | if (before == NULL) |
b9c361e0 | 2555 | lang_add_section (&ptr->children, section, sflag_info, os); |
4dec4d4e | 2556 | else |
252b5132 | 2557 | { |
4dec4d4e RH |
2558 | lang_statement_list_type list; |
2559 | lang_statement_union_type **pp; | |
5f992e62 | 2560 | |
4dec4d4e | 2561 | lang_list_init (&list); |
b9c361e0 | 2562 | lang_add_section (&list, section, sflag_info, os); |
5f992e62 | 2563 | |
4dec4d4e RH |
2564 | /* If we are discarding the section, LIST.HEAD will |
2565 | be NULL. */ | |
2566 | if (list.head != NULL) | |
252b5132 | 2567 | { |
bba1a0c0 | 2568 | ASSERT (list.head->header.next == NULL); |
5f992e62 | 2569 | |
4dec4d4e RH |
2570 | for (pp = &ptr->children.head; |
2571 | *pp != before; | |
bba1a0c0 | 2572 | pp = &(*pp)->header.next) |
4dec4d4e | 2573 | ASSERT (*pp != NULL); |
5f992e62 | 2574 | |
bba1a0c0 | 2575 | list.head->header.next = *pp; |
4dec4d4e | 2576 | *pp = list.head; |
252b5132 RH |
2577 | } |
2578 | } | |
2579 | } | |
2580 | ||
0841712e JJ |
2581 | /* Check if all sections in a wild statement for a particular FILE |
2582 | are readonly. */ | |
2583 | ||
2584 | static void | |
2585 | check_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED, | |
2586 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
2587 | asection *section, | |
b9c361e0 | 2588 | struct flag_info *sflag_info ATTRIBUTE_UNUSED, |
0841712e | 2589 | lang_input_statement_type *file ATTRIBUTE_UNUSED, |
d0bf826b | 2590 | void *output) |
0841712e | 2591 | { |
d0bf826b AM |
2592 | lang_output_section_statement_type *os; |
2593 | ||
2594 | os = (lang_output_section_statement_type *) output; | |
2595 | ||
0841712e | 2596 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
d0bf826b | 2597 | if (unique_section_p (section, os)) |
0841712e JJ |
2598 | return; |
2599 | ||
6feb9908 | 2600 | if (section->output_section == NULL && (section->flags & SEC_READONLY) == 0) |
d0bf826b | 2601 | os->all_input_readonly = FALSE; |
0841712e JJ |
2602 | } |
2603 | ||
252b5132 RH |
2604 | /* This is passed a file name which must have been seen already and |
2605 | added to the statement tree. We will see if it has been opened | |
2606 | already and had its symbols read. If not then we'll read it. */ | |
2607 | ||
2608 | static lang_input_statement_type * | |
1579bae1 | 2609 | lookup_name (const char *name) |
252b5132 RH |
2610 | { |
2611 | lang_input_statement_type *search; | |
2612 | ||
2613 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
1579bae1 | 2614 | search != NULL; |
252b5132 RH |
2615 | search = (lang_input_statement_type *) search->next_real_file) |
2616 | { | |
0013291d NC |
2617 | /* Use the local_sym_name as the name of the file that has |
2618 | already been loaded as filename might have been transformed | |
2619 | via the search directory lookup mechanism. */ | |
87aa7f19 | 2620 | const char *filename = search->local_sym_name; |
0013291d | 2621 | |
0013291d | 2622 | if (filename != NULL |
42627821 | 2623 | && filename_cmp (filename, name) == 0) |
252b5132 RH |
2624 | break; |
2625 | } | |
2626 | ||
1579bae1 | 2627 | if (search == NULL) |
6feb9908 AM |
2628 | search = new_afile (name, lang_input_file_is_search_file_enum, |
2629 | default_target, FALSE); | |
252b5132 RH |
2630 | |
2631 | /* If we have already added this file, or this file is not real | |
87aa7f19 | 2632 | don't add this file. */ |
66be1055 | 2633 | if (search->flags.loaded || !search->flags.real) |
252b5132 RH |
2634 | return search; |
2635 | ||
1579bae1 | 2636 | if (! load_symbols (search, NULL)) |
6770ec8c | 2637 | return NULL; |
252b5132 RH |
2638 | |
2639 | return search; | |
2640 | } | |
2641 | ||
b58f81ae DJ |
2642 | /* Save LIST as a list of libraries whose symbols should not be exported. */ |
2643 | ||
2644 | struct excluded_lib | |
2645 | { | |
2646 | char *name; | |
2647 | struct excluded_lib *next; | |
2648 | }; | |
2649 | static struct excluded_lib *excluded_libs; | |
2650 | ||
2651 | void | |
2652 | add_excluded_libs (const char *list) | |
2653 | { | |
2654 | const char *p = list, *end; | |
2655 | ||
2656 | while (*p != '\0') | |
2657 | { | |
2658 | struct excluded_lib *entry; | |
2659 | end = strpbrk (p, ",:"); | |
2660 | if (end == NULL) | |
2661 | end = p + strlen (p); | |
1e9cc1c2 | 2662 | entry = (struct excluded_lib *) xmalloc (sizeof (*entry)); |
b58f81ae | 2663 | entry->next = excluded_libs; |
1e9cc1c2 | 2664 | entry->name = (char *) xmalloc (end - p + 1); |
b58f81ae DJ |
2665 | memcpy (entry->name, p, end - p); |
2666 | entry->name[end - p] = '\0'; | |
2667 | excluded_libs = entry; | |
2668 | if (*end == '\0') | |
329c1c86 | 2669 | break; |
b58f81ae DJ |
2670 | p = end + 1; |
2671 | } | |
2672 | } | |
2673 | ||
2674 | static void | |
2675 | check_excluded_libs (bfd *abfd) | |
2676 | { | |
2677 | struct excluded_lib *lib = excluded_libs; | |
2678 | ||
2679 | while (lib) | |
2680 | { | |
2681 | int len = strlen (lib->name); | |
2682 | const char *filename = lbasename (abfd->filename); | |
2683 | ||
2684 | if (strcmp (lib->name, "ALL") == 0) | |
2685 | { | |
2686 | abfd->no_export = TRUE; | |
2687 | return; | |
2688 | } | |
2689 | ||
42627821 | 2690 | if (filename_ncmp (lib->name, filename, len) == 0 |
b58f81ae DJ |
2691 | && (filename[len] == '\0' |
2692 | || (filename[len] == '.' && filename[len + 1] == 'a' | |
2693 | && filename[len + 2] == '\0'))) | |
2694 | { | |
2695 | abfd->no_export = TRUE; | |
2696 | return; | |
2697 | } | |
2698 | ||
2699 | lib = lib->next; | |
2700 | } | |
2701 | } | |
2702 | ||
252b5132 RH |
2703 | /* Get the symbols for an input file. */ |
2704 | ||
e9f53129 | 2705 | bfd_boolean |
1579bae1 AM |
2706 | load_symbols (lang_input_statement_type *entry, |
2707 | lang_statement_list_type *place) | |
252b5132 RH |
2708 | { |
2709 | char **matching; | |
2710 | ||
66be1055 | 2711 | if (entry->flags.loaded) |
b34976b6 | 2712 | return TRUE; |
252b5132 RH |
2713 | |
2714 | ldfile_open_file (entry); | |
2715 | ||
c4b78195 | 2716 | /* Do not process further if the file was missing. */ |
66be1055 | 2717 | if (entry->flags.missing_file) |
c4b78195 NC |
2718 | return TRUE; |
2719 | ||
252b5132 RH |
2720 | if (! bfd_check_format (entry->the_bfd, bfd_archive) |
2721 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
2722 | { | |
2723 | bfd_error_type err; | |
66be1055 | 2724 | struct lang_input_statement_flags save_flags; |
47e2e729 | 2725 | extern FILE *yyin; |
b7a26f91 | 2726 | |
252b5132 | 2727 | err = bfd_get_error (); |
884fb58e NC |
2728 | |
2729 | /* See if the emulation has some special knowledge. */ | |
2730 | if (ldemul_unrecognized_file (entry)) | |
b34976b6 | 2731 | return TRUE; |
884fb58e | 2732 | |
252b5132 RH |
2733 | if (err == bfd_error_file_ambiguously_recognized) |
2734 | { | |
2735 | char **p; | |
2736 | ||
2737 | einfo (_("%B: file not recognized: %E\n"), entry->the_bfd); | |
2738 | einfo (_("%B: matching formats:"), entry->the_bfd); | |
2739 | for (p = matching; *p != NULL; p++) | |
2740 | einfo (" %s", *p); | |
2741 | einfo ("%F\n"); | |
2742 | } | |
2743 | else if (err != bfd_error_file_not_recognized | |
2744 | || place == NULL) | |
967928e9 | 2745 | einfo (_("%F%B: file not recognized: %E\n"), entry->the_bfd); |
b7a26f91 | 2746 | |
252b5132 RH |
2747 | bfd_close (entry->the_bfd); |
2748 | entry->the_bfd = NULL; | |
2749 | ||
252b5132 | 2750 | /* Try to interpret the file as a linker script. */ |
66be1055 | 2751 | save_flags = input_flags; |
252b5132 RH |
2752 | ldfile_open_command_file (entry->filename); |
2753 | ||
bde18da4 | 2754 | push_stat_ptr (place); |
66be1055 AM |
2755 | input_flags.add_DT_NEEDED_for_regular |
2756 | = entry->flags.add_DT_NEEDED_for_regular; | |
2757 | input_flags.add_DT_NEEDED_for_dynamic | |
2758 | = entry->flags.add_DT_NEEDED_for_dynamic; | |
2759 | input_flags.whole_archive = entry->flags.whole_archive; | |
2760 | input_flags.dynamic = entry->flags.dynamic; | |
252b5132 | 2761 | |
b34976b6 | 2762 | ldfile_assumed_script = TRUE; |
252b5132 RH |
2763 | parser_input = input_script; |
2764 | yyparse (); | |
b34976b6 | 2765 | ldfile_assumed_script = FALSE; |
252b5132 | 2766 | |
f4a23d42 AM |
2767 | /* missing_file is sticky. sysrooted will already have been |
2768 | restored when seeing EOF in yyparse, but no harm to restore | |
2769 | again. */ | |
66be1055 AM |
2770 | save_flags.missing_file |= input_flags.missing_file; |
2771 | input_flags = save_flags; | |
bde18da4 | 2772 | pop_stat_ptr (); |
47e2e729 AM |
2773 | fclose (yyin); |
2774 | yyin = NULL; | |
2775 | entry->flags.loaded = TRUE; | |
252b5132 | 2776 | |
bde18da4 | 2777 | return TRUE; |
252b5132 RH |
2778 | } |
2779 | ||
2780 | if (ldemul_recognized_file (entry)) | |
b34976b6 | 2781 | return TRUE; |
252b5132 RH |
2782 | |
2783 | /* We don't call ldlang_add_file for an archive. Instead, the | |
2784 | add_symbols entry point will call ldlang_add_file, via the | |
2785 | add_archive_element callback, for each element of the archive | |
2786 | which is used. */ | |
2787 | switch (bfd_get_format (entry->the_bfd)) | |
2788 | { | |
2789 | default: | |
2790 | break; | |
2791 | ||
2792 | case bfd_object: | |
15fc2e13 | 2793 | #ifdef ENABLE_PLUGINS |
66be1055 | 2794 | if (!entry->flags.reload) |
15fc2e13 AM |
2795 | #endif |
2796 | ldlang_add_file (entry); | |
cd6f1cf3 | 2797 | if (trace_files || verbose) |
252b5132 RH |
2798 | info_msg ("%I\n", entry); |
2799 | break; | |
2800 | ||
2801 | case bfd_archive: | |
b58f81ae DJ |
2802 | check_excluded_libs (entry->the_bfd); |
2803 | ||
66be1055 | 2804 | if (entry->flags.whole_archive) |
252b5132 | 2805 | { |
b7a26f91 | 2806 | bfd *member = NULL; |
b34976b6 | 2807 | bfd_boolean loaded = TRUE; |
6770ec8c NC |
2808 | |
2809 | for (;;) | |
252b5132 | 2810 | { |
5d3236ee | 2811 | bfd *subsbfd; |
6770ec8c NC |
2812 | member = bfd_openr_next_archived_file (entry->the_bfd, member); |
2813 | ||
2814 | if (member == NULL) | |
2815 | break; | |
b7a26f91 | 2816 | |
252b5132 | 2817 | if (! bfd_check_format (member, bfd_object)) |
6770ec8c NC |
2818 | { |
2819 | einfo (_("%F%B: member %B in archive is not an object\n"), | |
2820 | entry->the_bfd, member); | |
b34976b6 | 2821 | loaded = FALSE; |
6770ec8c NC |
2822 | } |
2823 | ||
db0ca79f | 2824 | subsbfd = member; |
46105645 AM |
2825 | if (!(*link_info.callbacks |
2826 | ->add_archive_element) (&link_info, member, | |
2827 | "--whole-archive", &subsbfd)) | |
252b5132 | 2828 | abort (); |
6770ec8c | 2829 | |
5d3236ee DK |
2830 | /* Potentially, the add_archive_element hook may have set a |
2831 | substitute BFD for us. */ | |
46105645 | 2832 | if (!bfd_link_add_symbols (subsbfd, &link_info)) |
6770ec8c | 2833 | { |
8ff4c1f3 | 2834 | einfo (_("%F%B: error adding symbols: %E\n"), member); |
b34976b6 | 2835 | loaded = FALSE; |
6770ec8c | 2836 | } |
252b5132 RH |
2837 | } |
2838 | ||
66be1055 | 2839 | entry->flags.loaded = loaded; |
6770ec8c | 2840 | return loaded; |
252b5132 | 2841 | } |
6770ec8c | 2842 | break; |
252b5132 RH |
2843 | } |
2844 | ||
03bdc404 | 2845 | if (bfd_link_add_symbols (entry->the_bfd, &link_info)) |
66be1055 | 2846 | entry->flags.loaded = TRUE; |
6770ec8c | 2847 | else |
8ff4c1f3 | 2848 | einfo (_("%F%B: error adding symbols: %E\n"), entry->the_bfd); |
252b5132 | 2849 | |
66be1055 | 2850 | return entry->flags.loaded; |
252b5132 RH |
2851 | } |
2852 | ||
b6bf44ba AM |
2853 | /* Handle a wild statement. S->FILENAME or S->SECTION_LIST or both |
2854 | may be NULL, indicating that it is a wildcard. Separate | |
2855 | lang_input_section statements are created for each part of the | |
2856 | expansion; they are added after the wild statement S. OUTPUT is | |
2857 | the output section. */ | |
252b5132 RH |
2858 | |
2859 | static void | |
1579bae1 AM |
2860 | wild (lang_wild_statement_type *s, |
2861 | const char *target ATTRIBUTE_UNUSED, | |
2862 | lang_output_section_statement_type *output) | |
252b5132 | 2863 | { |
b6bf44ba | 2864 | struct wildcard_list *sec; |
252b5132 | 2865 | |
50c77e5d | 2866 | if (s->handler_data[0] |
329c1c86 | 2867 | && s->handler_data[0]->spec.sorted == by_name |
50c77e5d NC |
2868 | && !s->filenames_sorted) |
2869 | { | |
329c1c86 AM |
2870 | lang_section_bst_type *tree; |
2871 | ||
50c77e5d NC |
2872 | walk_wild (s, output_section_callback_fast, output); |
2873 | ||
e6f2cbf5 | 2874 | tree = s->tree; |
329c1c86 | 2875 | if (tree) |
e6f2cbf5 L |
2876 | { |
2877 | output_section_callback_tree_to_list (s, tree, output); | |
2878 | s->tree = NULL; | |
2879 | } | |
50c77e5d | 2880 | } |
329c1c86 | 2881 | else |
50c77e5d | 2882 | walk_wild (s, output_section_callback, output); |
b6bf44ba | 2883 | |
abe6ac95 AM |
2884 | if (default_common_section == NULL) |
2885 | for (sec = s->section_list; sec != NULL; sec = sec->next) | |
b6bf44ba AM |
2886 | if (sec->spec.name != NULL && strcmp (sec->spec.name, "COMMON") == 0) |
2887 | { | |
2888 | /* Remember the section that common is going to in case we | |
b7a26f91 | 2889 | later get something which doesn't know where to put it. */ |
b6bf44ba | 2890 | default_common_section = output; |
abe6ac95 | 2891 | break; |
b6bf44ba | 2892 | } |
252b5132 RH |
2893 | } |
2894 | ||
b34976b6 | 2895 | /* Return TRUE iff target is the sought target. */ |
08da4cac | 2896 | |
e50d8076 | 2897 | static int |
1579bae1 | 2898 | get_target (const bfd_target *target, void *data) |
e50d8076 | 2899 | { |
1e9cc1c2 | 2900 | const char *sought = (const char *) data; |
5f992e62 | 2901 | |
e50d8076 NC |
2902 | return strcmp (target->name, sought) == 0; |
2903 | } | |
2904 | ||
2905 | /* Like strcpy() but convert to lower case as well. */ | |
08da4cac | 2906 | |
e50d8076 | 2907 | static void |
1579bae1 | 2908 | stricpy (char *dest, char *src) |
e50d8076 NC |
2909 | { |
2910 | char c; | |
5f992e62 | 2911 | |
08da4cac | 2912 | while ((c = *src++) != 0) |
3882b010 | 2913 | *dest++ = TOLOWER (c); |
e50d8076 | 2914 | |
08da4cac | 2915 | *dest = 0; |
e50d8076 NC |
2916 | } |
2917 | ||
396a2467 | 2918 | /* Remove the first occurrence of needle (if any) in haystack |
e50d8076 | 2919 | from haystack. */ |
08da4cac | 2920 | |
e50d8076 | 2921 | static void |
1579bae1 | 2922 | strcut (char *haystack, char *needle) |
e50d8076 NC |
2923 | { |
2924 | haystack = strstr (haystack, needle); | |
5f992e62 | 2925 | |
e50d8076 NC |
2926 | if (haystack) |
2927 | { | |
08da4cac | 2928 | char *src; |
e50d8076 | 2929 | |
08da4cac KH |
2930 | for (src = haystack + strlen (needle); *src;) |
2931 | *haystack++ = *src++; | |
5f992e62 | 2932 | |
08da4cac | 2933 | *haystack = 0; |
e50d8076 NC |
2934 | } |
2935 | } | |
2936 | ||
2937 | /* Compare two target format name strings. | |
2938 | Return a value indicating how "similar" they are. */ | |
08da4cac | 2939 | |
e50d8076 | 2940 | static int |
1579bae1 | 2941 | name_compare (char *first, char *second) |
e50d8076 | 2942 | { |
08da4cac KH |
2943 | char *copy1; |
2944 | char *copy2; | |
2945 | int result; | |
5f992e62 | 2946 | |
1e9cc1c2 NC |
2947 | copy1 = (char *) xmalloc (strlen (first) + 1); |
2948 | copy2 = (char *) xmalloc (strlen (second) + 1); | |
e50d8076 NC |
2949 | |
2950 | /* Convert the names to lower case. */ | |
2951 | stricpy (copy1, first); | |
2952 | stricpy (copy2, second); | |
2953 | ||
1579bae1 | 2954 | /* Remove size and endian strings from the name. */ |
e50d8076 NC |
2955 | strcut (copy1, "big"); |
2956 | strcut (copy1, "little"); | |
2957 | strcut (copy2, "big"); | |
2958 | strcut (copy2, "little"); | |
2959 | ||
2960 | /* Return a value based on how many characters match, | |
2961 | starting from the beginning. If both strings are | |
2962 | the same then return 10 * their length. */ | |
08da4cac KH |
2963 | for (result = 0; copy1[result] == copy2[result]; result++) |
2964 | if (copy1[result] == 0) | |
e50d8076 NC |
2965 | { |
2966 | result *= 10; | |
2967 | break; | |
2968 | } | |
5f992e62 | 2969 | |
e50d8076 NC |
2970 | free (copy1); |
2971 | free (copy2); | |
2972 | ||
2973 | return result; | |
2974 | } | |
2975 | ||
2976 | /* Set by closest_target_match() below. */ | |
08da4cac | 2977 | static const bfd_target *winner; |
e50d8076 NC |
2978 | |
2979 | /* Scan all the valid bfd targets looking for one that has the endianness | |
2980 | requirement that was specified on the command line, and is the nearest | |
2981 | match to the original output target. */ | |
08da4cac | 2982 | |
e50d8076 | 2983 | static int |
1579bae1 | 2984 | closest_target_match (const bfd_target *target, void *data) |
e50d8076 | 2985 | { |
1e9cc1c2 | 2986 | const bfd_target *original = (const bfd_target *) data; |
5f992e62 | 2987 | |
08da4cac KH |
2988 | if (command_line.endian == ENDIAN_BIG |
2989 | && target->byteorder != BFD_ENDIAN_BIG) | |
e50d8076 | 2990 | return 0; |
5f992e62 | 2991 | |
08da4cac KH |
2992 | if (command_line.endian == ENDIAN_LITTLE |
2993 | && target->byteorder != BFD_ENDIAN_LITTLE) | |
e50d8076 NC |
2994 | return 0; |
2995 | ||
2996 | /* Must be the same flavour. */ | |
2997 | if (target->flavour != original->flavour) | |
2998 | return 0; | |
2999 | ||
de7dd2bd | 3000 | /* Ignore generic big and little endian elf vectors. */ |
967928e9 | 3001 | if (strcmp (target->name, "elf32-big") == 0 |
de7dd2bd NC |
3002 | || strcmp (target->name, "elf64-big") == 0 |
3003 | || strcmp (target->name, "elf32-little") == 0 | |
3004 | || strcmp (target->name, "elf64-little") == 0) | |
3005 | return 0; | |
3006 | ||
e50d8076 NC |
3007 | /* If we have not found a potential winner yet, then record this one. */ |
3008 | if (winner == NULL) | |
3009 | { | |
3010 | winner = target; | |
3011 | return 0; | |
3012 | } | |
3013 | ||
3014 | /* Oh dear, we now have two potential candidates for a successful match. | |
4de2d33d | 3015 | Compare their names and choose the better one. */ |
d1778b88 AM |
3016 | if (name_compare (target->name, original->name) |
3017 | > name_compare (winner->name, original->name)) | |
e50d8076 NC |
3018 | winner = target; |
3019 | ||
3020 | /* Keep on searching until wqe have checked them all. */ | |
3021 | return 0; | |
3022 | } | |
3023 | ||
3024 | /* Return the BFD target format of the first input file. */ | |
08da4cac | 3025 | |
e50d8076 | 3026 | static char * |
1579bae1 | 3027 | get_first_input_target (void) |
e50d8076 | 3028 | { |
08da4cac | 3029 | char *target = NULL; |
e50d8076 NC |
3030 | |
3031 | LANG_FOR_EACH_INPUT_STATEMENT (s) | |
3032 | { | |
3033 | if (s->header.type == lang_input_statement_enum | |
66be1055 | 3034 | && s->flags.real) |
e50d8076 NC |
3035 | { |
3036 | ldfile_open_file (s); | |
5f992e62 | 3037 | |
e50d8076 NC |
3038 | if (s->the_bfd != NULL |
3039 | && bfd_check_format (s->the_bfd, bfd_object)) | |
3040 | { | |
3041 | target = bfd_get_target (s->the_bfd); | |
5f992e62 | 3042 | |
e50d8076 NC |
3043 | if (target != NULL) |
3044 | break; | |
3045 | } | |
3046 | } | |
3047 | } | |
5f992e62 | 3048 | |
e50d8076 NC |
3049 | return target; |
3050 | } | |
3051 | ||
599917b8 | 3052 | const char * |
1579bae1 | 3053 | lang_get_output_target (void) |
599917b8 JJ |
3054 | { |
3055 | const char *target; | |
3056 | ||
3057 | /* Has the user told us which output format to use? */ | |
1579bae1 | 3058 | if (output_target != NULL) |
599917b8 JJ |
3059 | return output_target; |
3060 | ||
3061 | /* No - has the current target been set to something other than | |
3062 | the default? */ | |
30824704 | 3063 | if (current_target != default_target && current_target != NULL) |
599917b8 JJ |
3064 | return current_target; |
3065 | ||
3066 | /* No - can we determine the format of the first input file? */ | |
3067 | target = get_first_input_target (); | |
3068 | if (target != NULL) | |
3069 | return target; | |
3070 | ||
3071 | /* Failed - use the default output target. */ | |
3072 | return default_target; | |
3073 | } | |
3074 | ||
252b5132 RH |
3075 | /* Open the output file. */ |
3076 | ||
f13a99db | 3077 | static void |
1579bae1 | 3078 | open_output (const char *name) |
252b5132 | 3079 | { |
599917b8 | 3080 | output_target = lang_get_output_target (); |
5f992e62 | 3081 | |
08da4cac KH |
3082 | /* Has the user requested a particular endianness on the command |
3083 | line? */ | |
e50d8076 NC |
3084 | if (command_line.endian != ENDIAN_UNSET) |
3085 | { | |
08da4cac | 3086 | const bfd_target *target; |
1b69a0bf | 3087 | enum bfd_endian desired_endian; |
e50d8076 NC |
3088 | |
3089 | /* Get the chosen target. */ | |
1579bae1 | 3090 | target = bfd_search_for_target (get_target, (void *) output_target); |
e50d8076 | 3091 | |
c13b1b77 NC |
3092 | /* If the target is not supported, we cannot do anything. */ |
3093 | if (target != NULL) | |
e50d8076 | 3094 | { |
c13b1b77 NC |
3095 | if (command_line.endian == ENDIAN_BIG) |
3096 | desired_endian = BFD_ENDIAN_BIG; | |
e50d8076 | 3097 | else |
c13b1b77 | 3098 | desired_endian = BFD_ENDIAN_LITTLE; |
5f992e62 AM |
3099 | |
3100 | /* See if the target has the wrong endianness. This should | |
3101 | not happen if the linker script has provided big and | |
3102 | little endian alternatives, but some scrips don't do | |
3103 | this. */ | |
c13b1b77 | 3104 | if (target->byteorder != desired_endian) |
e50d8076 | 3105 | { |
c13b1b77 NC |
3106 | /* If it does, then see if the target provides |
3107 | an alternative with the correct endianness. */ | |
3108 | if (target->alternative_target != NULL | |
3109 | && (target->alternative_target->byteorder == desired_endian)) | |
3110 | output_target = target->alternative_target->name; | |
e50d8076 | 3111 | else |
c13b1b77 | 3112 | { |
5f992e62 AM |
3113 | /* Try to find a target as similar as possible to |
3114 | the default target, but which has the desired | |
3115 | endian characteristic. */ | |
1579bae1 AM |
3116 | bfd_search_for_target (closest_target_match, |
3117 | (void *) target); | |
5f992e62 AM |
3118 | |
3119 | /* Oh dear - we could not find any targets that | |
3120 | satisfy our requirements. */ | |
c13b1b77 | 3121 | if (winner == NULL) |
6feb9908 AM |
3122 | einfo (_("%P: warning: could not find any targets" |
3123 | " that match endianness requirement\n")); | |
c13b1b77 NC |
3124 | else |
3125 | output_target = winner->name; | |
3126 | } | |
e50d8076 NC |
3127 | } |
3128 | } | |
252b5132 | 3129 | } |
5f992e62 | 3130 | |
f13a99db | 3131 | link_info.output_bfd = bfd_openw (name, output_target); |
252b5132 | 3132 | |
f13a99db | 3133 | if (link_info.output_bfd == NULL) |
252b5132 RH |
3134 | { |
3135 | if (bfd_get_error () == bfd_error_invalid_target) | |
e50d8076 NC |
3136 | einfo (_("%P%F: target %s not found\n"), output_target); |
3137 | ||
252b5132 RH |
3138 | einfo (_("%P%F: cannot open output file %s: %E\n"), name); |
3139 | } | |
3140 | ||
b34976b6 | 3141 | delete_output_file_on_failure = TRUE; |
252b5132 | 3142 | |
f13a99db | 3143 | if (! bfd_set_format (link_info.output_bfd, bfd_object)) |
252b5132 | 3144 | einfo (_("%P%F:%s: can not make object file: %E\n"), name); |
f13a99db | 3145 | if (! bfd_set_arch_mach (link_info.output_bfd, |
252b5132 RH |
3146 | ldfile_output_architecture, |
3147 | ldfile_output_machine)) | |
3148 | einfo (_("%P%F:%s: can not set architecture: %E\n"), name); | |
3149 | ||
f13a99db | 3150 | link_info.hash = bfd_link_hash_table_create (link_info.output_bfd); |
1579bae1 | 3151 | if (link_info.hash == NULL) |
384a9dda | 3152 | einfo (_("%P%F: can not create hash table: %E\n")); |
252b5132 | 3153 | |
f13a99db | 3154 | bfd_set_gp_size (link_info.output_bfd, g_switch_value); |
252b5132 RH |
3155 | } |
3156 | ||
252b5132 | 3157 | static void |
1579bae1 | 3158 | ldlang_open_output (lang_statement_union_type *statement) |
252b5132 RH |
3159 | { |
3160 | switch (statement->header.type) | |
3161 | { | |
3162 | case lang_output_statement_enum: | |
f13a99db AM |
3163 | ASSERT (link_info.output_bfd == NULL); |
3164 | open_output (statement->output_statement.name); | |
252b5132 | 3165 | ldemul_set_output_arch (); |
1049f94e | 3166 | if (config.magic_demand_paged && !link_info.relocatable) |
f13a99db | 3167 | link_info.output_bfd->flags |= D_PAGED; |
252b5132 | 3168 | else |
f13a99db | 3169 | link_info.output_bfd->flags &= ~D_PAGED; |
252b5132 | 3170 | if (config.text_read_only) |
f13a99db | 3171 | link_info.output_bfd->flags |= WP_TEXT; |
252b5132 | 3172 | else |
f13a99db | 3173 | link_info.output_bfd->flags &= ~WP_TEXT; |
252b5132 | 3174 | if (link_info.traditional_format) |
f13a99db | 3175 | link_info.output_bfd->flags |= BFD_TRADITIONAL_FORMAT; |
252b5132 | 3176 | else |
f13a99db | 3177 | link_info.output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; |
252b5132 RH |
3178 | break; |
3179 | ||
3180 | case lang_target_statement_enum: | |
3181 | current_target = statement->target_statement.target; | |
3182 | break; | |
3183 | default: | |
3184 | break; | |
3185 | } | |
3186 | } | |
3187 | ||
e5caa5e0 AM |
3188 | /* Convert between addresses in bytes and sizes in octets. |
3189 | For currently supported targets, octets_per_byte is always a power | |
3190 | of two, so we can use shifts. */ | |
3191 | #define TO_ADDR(X) ((X) >> opb_shift) | |
3192 | #define TO_SIZE(X) ((X) << opb_shift) | |
3193 | ||
3194 | /* Support the above. */ | |
3195 | static unsigned int opb_shift = 0; | |
3196 | ||
3197 | static void | |
3198 | init_opb (void) | |
3199 | { | |
3200 | unsigned x = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, | |
3201 | ldfile_output_machine); | |
3202 | opb_shift = 0; | |
3203 | if (x > 1) | |
3204 | while ((x & 1) == 0) | |
3205 | { | |
3206 | x >>= 1; | |
3207 | ++opb_shift; | |
3208 | } | |
3209 | ASSERT (x == 1); | |
3210 | } | |
3211 | ||
252b5132 RH |
3212 | /* Open all the input files. */ |
3213 | ||
486329aa AM |
3214 | enum open_bfd_mode |
3215 | { | |
3216 | OPEN_BFD_NORMAL = 0, | |
3217 | OPEN_BFD_FORCE = 1, | |
3218 | OPEN_BFD_RESCAN = 2 | |
3219 | }; | |
9e2278f5 AM |
3220 | #ifdef ENABLE_PLUGINS |
3221 | static lang_input_statement_type *plugin_insert = NULL; | |
3222 | #endif | |
486329aa | 3223 | |
252b5132 | 3224 | static void |
486329aa | 3225 | open_input_bfds (lang_statement_union_type *s, enum open_bfd_mode mode) |
252b5132 | 3226 | { |
1579bae1 | 3227 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
3228 | { |
3229 | switch (s->header.type) | |
3230 | { | |
3231 | case lang_constructors_statement_enum: | |
486329aa | 3232 | open_input_bfds (constructor_list.head, mode); |
252b5132 RH |
3233 | break; |
3234 | case lang_output_section_statement_enum: | |
486329aa | 3235 | open_input_bfds (s->output_section_statement.children.head, mode); |
252b5132 RH |
3236 | break; |
3237 | case lang_wild_statement_enum: | |
08da4cac | 3238 | /* Maybe we should load the file's symbols. */ |
486329aa AM |
3239 | if ((mode & OPEN_BFD_RESCAN) == 0 |
3240 | && s->wild_statement.filename | |
97407faf AM |
3241 | && !wildcardp (s->wild_statement.filename) |
3242 | && !archive_path (s->wild_statement.filename)) | |
4a43e768 | 3243 | lookup_name (s->wild_statement.filename); |
486329aa | 3244 | open_input_bfds (s->wild_statement.children.head, mode); |
252b5132 RH |
3245 | break; |
3246 | case lang_group_statement_enum: | |
3247 | { | |
3248 | struct bfd_link_hash_entry *undefs; | |
3249 | ||
3250 | /* We must continually search the entries in the group | |
08da4cac KH |
3251 | until no new symbols are added to the list of undefined |
3252 | symbols. */ | |
252b5132 RH |
3253 | |
3254 | do | |
3255 | { | |
3256 | undefs = link_info.hash->undefs_tail; | |
486329aa AM |
3257 | open_input_bfds (s->group_statement.children.head, |
3258 | mode | OPEN_BFD_FORCE); | |
252b5132 RH |
3259 | } |
3260 | while (undefs != link_info.hash->undefs_tail); | |
3261 | } | |
3262 | break; | |
3263 | case lang_target_statement_enum: | |
3264 | current_target = s->target_statement.target; | |
3265 | break; | |
3266 | case lang_input_statement_enum: | |
66be1055 | 3267 | if (s->input_statement.flags.real) |
252b5132 | 3268 | { |
bde18da4 | 3269 | lang_statement_union_type **os_tail; |
252b5132 RH |
3270 | lang_statement_list_type add; |
3271 | ||
3272 | s->input_statement.target = current_target; | |
3273 | ||
3274 | /* If we are being called from within a group, and this | |
afd7a018 AM |
3275 | is an archive which has already been searched, then |
3276 | force it to be researched unless the whole archive | |
486329aa AM |
3277 | has been loaded already. Do the same for a rescan. */ |
3278 | if (mode != OPEN_BFD_NORMAL | |
9e2278f5 AM |
3279 | #ifdef ENABLE_PLUGINS |
3280 | && ((mode & OPEN_BFD_RESCAN) == 0 | |
3281 | || plugin_insert == NULL) | |
3282 | #endif | |
66be1055 AM |
3283 | && !s->input_statement.flags.whole_archive |
3284 | && s->input_statement.flags.loaded | |
47e2e729 | 3285 | && s->input_statement.the_bfd != NULL |
252b5132 RH |
3286 | && bfd_check_format (s->input_statement.the_bfd, |
3287 | bfd_archive)) | |
66be1055 | 3288 | s->input_statement.flags.loaded = FALSE; |
15fc2e13 AM |
3289 | #ifdef ENABLE_PLUGINS |
3290 | /* When rescanning, reload --as-needed shared libs. */ | |
3291 | else if ((mode & OPEN_BFD_RESCAN) != 0 | |
3292 | && plugin_insert == NULL | |
66be1055 AM |
3293 | && s->input_statement.flags.loaded |
3294 | && s->input_statement.flags.add_DT_NEEDED_for_regular | |
47e2e729 | 3295 | && s->input_statement.the_bfd != NULL |
5468810d AM |
3296 | && ((s->input_statement.the_bfd->flags) & DYNAMIC) != 0 |
3297 | && plugin_should_reload (s->input_statement.the_bfd)) | |
15fc2e13 | 3298 | { |
66be1055 AM |
3299 | s->input_statement.flags.loaded = FALSE; |
3300 | s->input_statement.flags.reload = TRUE; | |
15fc2e13 AM |
3301 | } |
3302 | #endif | |
252b5132 | 3303 | |
bde18da4 | 3304 | os_tail = lang_output_section_statement.tail; |
d1778b88 | 3305 | lang_list_init (&add); |
1276aefa | 3306 | |
6770ec8c | 3307 | if (! load_symbols (&s->input_statement, &add)) |
b34976b6 | 3308 | config.make_executable = FALSE; |
252b5132 RH |
3309 | |
3310 | if (add.head != NULL) | |
3311 | { | |
bde18da4 AM |
3312 | /* If this was a script with output sections then |
3313 | tack any added statements on to the end of the | |
3314 | list. This avoids having to reorder the output | |
3315 | section statement list. Very likely the user | |
3316 | forgot -T, and whatever we do here will not meet | |
3317 | naive user expectations. */ | |
3318 | if (os_tail != lang_output_section_statement.tail) | |
3319 | { | |
3320 | einfo (_("%P: warning: %s contains output sections;" | |
3321 | " did you forget -T?\n"), | |
3322 | s->input_statement.filename); | |
3323 | *stat_ptr->tail = add.head; | |
3324 | stat_ptr->tail = add.tail; | |
3325 | } | |
3326 | else | |
3327 | { | |
3328 | *add.tail = s->header.next; | |
3329 | s->header.next = add.head; | |
3330 | } | |
252b5132 RH |
3331 | } |
3332 | } | |
9e2278f5 AM |
3333 | #ifdef ENABLE_PLUGINS |
3334 | /* If we have found the point at which a plugin added new | |
3335 | files, clear plugin_insert to enable archive rescan. */ | |
3336 | if (&s->input_statement == plugin_insert) | |
3337 | plugin_insert = NULL; | |
3338 | #endif | |
252b5132 | 3339 | break; |
e759c116 | 3340 | case lang_assignment_statement_enum: |
eb8476a6 | 3341 | if (s->assignment_statement.exp->assign.defsym) |
01554a74 AM |
3342 | /* This is from a --defsym on the command line. */ |
3343 | exp_fold_tree_no_dot (s->assignment_statement.exp); | |
e759c116 | 3344 | break; |
252b5132 RH |
3345 | default: |
3346 | break; | |
3347 | } | |
3348 | } | |
c4b78195 NC |
3349 | |
3350 | /* Exit if any of the files were missing. */ | |
66be1055 | 3351 | if (input_flags.missing_file) |
c4b78195 | 3352 | einfo ("%F"); |
252b5132 RH |
3353 | } |
3354 | ||
420e579c HPN |
3355 | /* New-function for the definedness hash table. */ |
3356 | ||
3357 | static struct bfd_hash_entry * | |
3358 | lang_definedness_newfunc (struct bfd_hash_entry *entry, | |
3359 | struct bfd_hash_table *table ATTRIBUTE_UNUSED, | |
3360 | const char *name ATTRIBUTE_UNUSED) | |
3361 | { | |
3362 | struct lang_definedness_hash_entry *ret | |
3363 | = (struct lang_definedness_hash_entry *) entry; | |
3364 | ||
3365 | if (ret == NULL) | |
3366 | ret = (struct lang_definedness_hash_entry *) | |
3367 | bfd_hash_allocate (table, sizeof (struct lang_definedness_hash_entry)); | |
3368 | ||
3369 | if (ret == NULL) | |
3370 | einfo (_("%P%F: bfd_hash_allocate failed creating symbol %s\n"), name); | |
3371 | ||
fa72205c AM |
3372 | ret->by_object = 0; |
3373 | ret->by_script = 0; | |
3374 | ret->iteration = 0; | |
420e579c HPN |
3375 | return &ret->root; |
3376 | } | |
3377 | ||
fa72205c AM |
3378 | /* Called during processing of linker script script expressions. |
3379 | For symbols assigned in a linker script, return a struct describing | |
3380 | where the symbol is defined relative to the current expression, | |
3381 | otherwise return NULL. */ | |
420e579c | 3382 | |
fa72205c AM |
3383 | struct lang_definedness_hash_entry * |
3384 | lang_symbol_defined (const char *name) | |
420e579c | 3385 | { |
fa72205c AM |
3386 | return ((struct lang_definedness_hash_entry *) |
3387 | bfd_hash_lookup (&lang_definedness_table, name, FALSE, FALSE)); | |
420e579c HPN |
3388 | } |
3389 | ||
3390 | /* Update the definedness state of NAME. */ | |
3391 | ||
3392 | void | |
3393 | lang_update_definedness (const char *name, struct bfd_link_hash_entry *h) | |
3394 | { | |
3395 | struct lang_definedness_hash_entry *defentry | |
3396 | = (struct lang_definedness_hash_entry *) | |
fa72205c | 3397 | bfd_hash_lookup (&lang_definedness_table, name, TRUE, FALSE); |
420e579c | 3398 | |
420e579c | 3399 | if (defentry == NULL) |
fa72205c | 3400 | einfo (_("%P%F: bfd_hash_lookup failed creating symbol %s\n"), name); |
420e579c | 3401 | |
fa72205c AM |
3402 | /* If the symbol was already defined, and not by a script, then it |
3403 | must be defined by an object file. */ | |
3404 | if (!defentry->by_script | |
3405 | && h->type != bfd_link_hash_undefined | |
420e579c | 3406 | && h->type != bfd_link_hash_common |
fa72205c AM |
3407 | && h->type != bfd_link_hash_new) |
3408 | defentry->by_object = 1; | |
420e579c | 3409 | |
fa72205c | 3410 | defentry->by_script = 1; |
420e579c HPN |
3411 | defentry->iteration = lang_statement_iteration; |
3412 | } | |
3413 | ||
08da4cac | 3414 | /* Add the supplied name to the symbol table as an undefined reference. |
fcf0e35b AM |
3415 | This is a two step process as the symbol table doesn't even exist at |
3416 | the time the ld command line is processed. First we put the name | |
3417 | on a list, then, once the output file has been opened, transfer the | |
3418 | name to the symbol table. */ | |
3419 | ||
e3e942e9 | 3420 | typedef struct bfd_sym_chain ldlang_undef_chain_list_type; |
252b5132 | 3421 | |
e3e942e9 | 3422 | #define ldlang_undef_chain_list_head entry_symbol.next |
252b5132 RH |
3423 | |
3424 | void | |
24898b70 | 3425 | ldlang_add_undef (const char *const name, bfd_boolean cmdline) |
252b5132 | 3426 | { |
24898b70 | 3427 | ldlang_undef_chain_list_type *new_undef; |
252b5132 | 3428 | |
24898b70 AM |
3429 | undef_from_cmdline = undef_from_cmdline || cmdline; |
3430 | new_undef = (ldlang_undef_chain_list_type *) stat_alloc (sizeof (*new_undef)); | |
d3ce72d0 NC |
3431 | new_undef->next = ldlang_undef_chain_list_head; |
3432 | ldlang_undef_chain_list_head = new_undef; | |
252b5132 | 3433 | |
d3ce72d0 | 3434 | new_undef->name = xstrdup (name); |
fcf0e35b | 3435 | |
f13a99db | 3436 | if (link_info.output_bfd != NULL) |
d3ce72d0 | 3437 | insert_undefined (new_undef->name); |
fcf0e35b AM |
3438 | } |
3439 | ||
3440 | /* Insert NAME as undefined in the symbol table. */ | |
3441 | ||
3442 | static void | |
1579bae1 | 3443 | insert_undefined (const char *name) |
fcf0e35b AM |
3444 | { |
3445 | struct bfd_link_hash_entry *h; | |
3446 | ||
b34976b6 | 3447 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, FALSE, TRUE); |
1579bae1 | 3448 | if (h == NULL) |
fcf0e35b AM |
3449 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); |
3450 | if (h->type == bfd_link_hash_new) | |
3451 | { | |
3452 | h->type = bfd_link_hash_undefined; | |
3453 | h->u.undef.abfd = NULL; | |
3454 | bfd_link_add_undef (link_info.hash, h); | |
3455 | } | |
252b5132 RH |
3456 | } |
3457 | ||
3458 | /* Run through the list of undefineds created above and place them | |
3459 | into the linker hash table as undefined symbols belonging to the | |
08da4cac KH |
3460 | script file. */ |
3461 | ||
252b5132 | 3462 | static void |
1579bae1 | 3463 | lang_place_undefineds (void) |
252b5132 RH |
3464 | { |
3465 | ldlang_undef_chain_list_type *ptr; | |
3466 | ||
1579bae1 AM |
3467 | for (ptr = ldlang_undef_chain_list_head; ptr != NULL; ptr = ptr->next) |
3468 | insert_undefined (ptr->name); | |
252b5132 RH |
3469 | } |
3470 | ||
0841712e JJ |
3471 | /* Check for all readonly or some readwrite sections. */ |
3472 | ||
3473 | static void | |
6feb9908 AM |
3474 | check_input_sections |
3475 | (lang_statement_union_type *s, | |
3476 | lang_output_section_statement_type *output_section_statement) | |
0841712e JJ |
3477 | { |
3478 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) | |
3479 | { | |
3480 | switch (s->header.type) | |
967928e9 AM |
3481 | { |
3482 | case lang_wild_statement_enum: | |
3483 | walk_wild (&s->wild_statement, check_section_callback, | |
3484 | output_section_statement); | |
3485 | if (! output_section_statement->all_input_readonly) | |
3486 | return; | |
3487 | break; | |
3488 | case lang_constructors_statement_enum: | |
3489 | check_input_sections (constructor_list.head, | |
3490 | output_section_statement); | |
3491 | if (! output_section_statement->all_input_readonly) | |
3492 | return; | |
3493 | break; | |
3494 | case lang_group_statement_enum: | |
3495 | check_input_sections (s->group_statement.children.head, | |
3496 | output_section_statement); | |
3497 | if (! output_section_statement->all_input_readonly) | |
3498 | return; | |
3499 | break; | |
3500 | default: | |
3501 | break; | |
3502 | } | |
0841712e JJ |
3503 | } |
3504 | } | |
3505 | ||
bcaa7b3e L |
3506 | /* Update wildcard statements if needed. */ |
3507 | ||
3508 | static void | |
3509 | update_wild_statements (lang_statement_union_type *s) | |
3510 | { | |
3511 | struct wildcard_list *sec; | |
3512 | ||
3513 | switch (sort_section) | |
3514 | { | |
3515 | default: | |
3516 | FAIL (); | |
3517 | ||
3518 | case none: | |
3519 | break; | |
3520 | ||
3521 | case by_name: | |
3522 | case by_alignment: | |
3523 | for (; s != NULL; s = s->header.next) | |
3524 | { | |
3525 | switch (s->header.type) | |
3526 | { | |
3527 | default: | |
3528 | break; | |
3529 | ||
3530 | case lang_wild_statement_enum: | |
0d0999db L |
3531 | for (sec = s->wild_statement.section_list; sec != NULL; |
3532 | sec = sec->next) | |
bcaa7b3e L |
3533 | { |
3534 | switch (sec->spec.sorted) | |
3535 | { | |
3536 | case none: | |
3537 | sec->spec.sorted = sort_section; | |
3538 | break; | |
3539 | case by_name: | |
3540 | if (sort_section == by_alignment) | |
3541 | sec->spec.sorted = by_name_alignment; | |
3542 | break; | |
3543 | case by_alignment: | |
3544 | if (sort_section == by_name) | |
3545 | sec->spec.sorted = by_alignment_name; | |
3546 | break; | |
3547 | default: | |
3548 | break; | |
3549 | } | |
3550 | } | |
3551 | break; | |
3552 | ||
3553 | case lang_constructors_statement_enum: | |
3554 | update_wild_statements (constructor_list.head); | |
3555 | break; | |
3556 | ||
3557 | case lang_output_section_statement_enum: | |
eda680f8 L |
3558 | /* Don't sort .init/.fini sections. */ |
3559 | if (strcmp (s->output_section_statement.name, ".init") != 0 | |
3560 | && strcmp (s->output_section_statement.name, ".fini") != 0) | |
3561 | update_wild_statements | |
3562 | (s->output_section_statement.children.head); | |
bcaa7b3e L |
3563 | break; |
3564 | ||
3565 | case lang_group_statement_enum: | |
3566 | update_wild_statements (s->group_statement.children.head); | |
3567 | break; | |
3568 | } | |
3569 | } | |
3570 | break; | |
3571 | } | |
3572 | } | |
3573 | ||
396a2467 | 3574 | /* Open input files and attach to output sections. */ |
08da4cac | 3575 | |
252b5132 | 3576 | static void |
1579bae1 AM |
3577 | map_input_to_output_sections |
3578 | (lang_statement_union_type *s, const char *target, | |
afd7a018 | 3579 | lang_output_section_statement_type *os) |
252b5132 | 3580 | { |
1579bae1 | 3581 | for (; s != NULL; s = s->header.next) |
252b5132 | 3582 | { |
dfa7b0b8 AM |
3583 | lang_output_section_statement_type *tos; |
3584 | flagword flags; | |
3585 | ||
252b5132 RH |
3586 | switch (s->header.type) |
3587 | { | |
252b5132 | 3588 | case lang_wild_statement_enum: |
afd7a018 | 3589 | wild (&s->wild_statement, target, os); |
abc6ab0a | 3590 | break; |
252b5132 RH |
3591 | case lang_constructors_statement_enum: |
3592 | map_input_to_output_sections (constructor_list.head, | |
3593 | target, | |
afd7a018 | 3594 | os); |
252b5132 RH |
3595 | break; |
3596 | case lang_output_section_statement_enum: | |
dfa7b0b8 AM |
3597 | tos = &s->output_section_statement; |
3598 | if (tos->constraint != 0) | |
0841712e | 3599 | { |
dfa7b0b8 AM |
3600 | if (tos->constraint != ONLY_IF_RW |
3601 | && tos->constraint != ONLY_IF_RO) | |
0841712e | 3602 | break; |
dfa7b0b8 AM |
3603 | tos->all_input_readonly = TRUE; |
3604 | check_input_sections (tos->children.head, tos); | |
3605 | if (tos->all_input_readonly != (tos->constraint == ONLY_IF_RO)) | |
0841712e | 3606 | { |
dfa7b0b8 | 3607 | tos->constraint = -1; |
0841712e JJ |
3608 | break; |
3609 | } | |
3610 | } | |
dfa7b0b8 | 3611 | map_input_to_output_sections (tos->children.head, |
252b5132 | 3612 | target, |
dfa7b0b8 | 3613 | tos); |
a431bc2e AM |
3614 | break; |
3615 | case lang_output_statement_enum: | |
252b5132 RH |
3616 | break; |
3617 | case lang_target_statement_enum: | |
3618 | target = s->target_statement.target; | |
3619 | break; | |
3620 | case lang_group_statement_enum: | |
3621 | map_input_to_output_sections (s->group_statement.children.head, | |
3622 | target, | |
afd7a018 | 3623 | os); |
252b5132 | 3624 | break; |
384d938f NS |
3625 | case lang_data_statement_enum: |
3626 | /* Make sure that any sections mentioned in the expression | |
3627 | are initialized. */ | |
3628 | exp_init_os (s->data_statement.exp); | |
2e76e85a AM |
3629 | /* The output section gets CONTENTS, ALLOC and LOAD, but |
3630 | these may be overridden by the script. */ | |
dfa7b0b8 AM |
3631 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD; |
3632 | switch (os->sectype) | |
3633 | { | |
3634 | case normal_section: | |
3635 | case overlay_section: | |
3636 | break; | |
3637 | case noalloc_section: | |
3638 | flags = SEC_HAS_CONTENTS; | |
3639 | break; | |
3640 | case noload_section: | |
f4eaaf7f AM |
3641 | if (bfd_get_flavour (link_info.output_bfd) |
3642 | == bfd_target_elf_flavour) | |
3643 | flags = SEC_NEVER_LOAD | SEC_ALLOC; | |
3644 | else | |
3645 | flags = SEC_NEVER_LOAD | SEC_HAS_CONTENTS; | |
dfa7b0b8 AM |
3646 | break; |
3647 | } | |
a431bc2e | 3648 | if (os->bfd_section == NULL) |
dfa7b0b8 | 3649 | init_os (os, flags); |
a431bc2e AM |
3650 | else |
3651 | os->bfd_section->flags |= flags; | |
afd7a018 | 3652 | break; |
252b5132 | 3653 | case lang_input_section_enum: |
e0f6802f AM |
3654 | break; |
3655 | case lang_fill_statement_enum: | |
252b5132 | 3656 | case lang_object_symbols_statement_enum: |
252b5132 RH |
3657 | case lang_reloc_statement_enum: |
3658 | case lang_padding_statement_enum: | |
3659 | case lang_input_statement_enum: | |
afd7a018 | 3660 | if (os != NULL && os->bfd_section == NULL) |
dfa7b0b8 | 3661 | init_os (os, 0); |
252b5132 RH |
3662 | break; |
3663 | case lang_assignment_statement_enum: | |
afd7a018 | 3664 | if (os != NULL && os->bfd_section == NULL) |
dfa7b0b8 | 3665 | init_os (os, 0); |
252b5132 RH |
3666 | |
3667 | /* Make sure that any sections mentioned in the assignment | |
08da4cac | 3668 | are initialized. */ |
252b5132 RH |
3669 | exp_init_os (s->assignment_statement.exp); |
3670 | break; | |
252b5132 | 3671 | case lang_address_statement_enum: |
a431bc2e AM |
3672 | /* Mark the specified section with the supplied address. |
3673 | If this section was actually a segment marker, then the | |
3674 | directive is ignored if the linker script explicitly | |
3675 | processed the segment marker. Originally, the linker | |
3676 | treated segment directives (like -Ttext on the | |
3677 | command-line) as section directives. We honor the | |
3678 | section directive semantics for backwards compatibilty; | |
3679 | linker scripts that do not specifically check for | |
3680 | SEGMENT_START automatically get the old semantics. */ | |
329c1c86 | 3681 | if (!s->address_statement.segment |
ba916c8a MM |
3682 | || !s->address_statement.segment->used) |
3683 | { | |
dfa7b0b8 AM |
3684 | const char *name = s->address_statement.section_name; |
3685 | ||
3686 | /* Create the output section statement here so that | |
3687 | orphans with a set address will be placed after other | |
3688 | script sections. If we let the orphan placement code | |
3689 | place them in amongst other sections then the address | |
3690 | will affect following script sections, which is | |
3691 | likely to surprise naive users. */ | |
3692 | tos = lang_output_section_statement_lookup (name, 0, TRUE); | |
3693 | tos->addr_tree = s->address_statement.address; | |
3694 | if (tos->bfd_section == NULL) | |
3695 | init_os (tos, 0); | |
ba916c8a | 3696 | } |
252b5132 | 3697 | break; |
53d25da6 AM |
3698 | case lang_insert_statement_enum: |
3699 | break; | |
3700 | } | |
3701 | } | |
3702 | } | |
3703 | ||
3704 | /* An insert statement snips out all the linker statements from the | |
3705 | start of the list and places them after the output section | |
3706 | statement specified by the insert. This operation is complicated | |
3707 | by the fact that we keep a doubly linked list of output section | |
3708 | statements as well as the singly linked list of all statements. */ | |
3709 | ||
3710 | static void | |
3711 | process_insert_statements (void) | |
3712 | { | |
3713 | lang_statement_union_type **s; | |
3714 | lang_output_section_statement_type *first_os = NULL; | |
3715 | lang_output_section_statement_type *last_os = NULL; | |
66c103b7 | 3716 | lang_output_section_statement_type *os; |
53d25da6 AM |
3717 | |
3718 | /* "start of list" is actually the statement immediately after | |
3719 | the special abs_section output statement, so that it isn't | |
3720 | reordered. */ | |
3721 | s = &lang_output_section_statement.head; | |
3722 | while (*(s = &(*s)->header.next) != NULL) | |
3723 | { | |
3724 | if ((*s)->header.type == lang_output_section_statement_enum) | |
3725 | { | |
3726 | /* Keep pointers to the first and last output section | |
3727 | statement in the sequence we may be about to move. */ | |
d2ae7be0 AM |
3728 | os = &(*s)->output_section_statement; |
3729 | ||
3730 | ASSERT (last_os == NULL || last_os->next == os); | |
3731 | last_os = os; | |
66c103b7 AM |
3732 | |
3733 | /* Set constraint negative so that lang_output_section_find | |
3734 | won't match this output section statement. At this | |
3735 | stage in linking constraint has values in the range | |
3736 | [-1, ONLY_IN_RW]. */ | |
3737 | last_os->constraint = -2 - last_os->constraint; | |
53d25da6 AM |
3738 | if (first_os == NULL) |
3739 | first_os = last_os; | |
3740 | } | |
3741 | else if ((*s)->header.type == lang_insert_statement_enum) | |
3742 | { | |
3743 | lang_insert_statement_type *i = &(*s)->insert_statement; | |
3744 | lang_output_section_statement_type *where; | |
53d25da6 AM |
3745 | lang_statement_union_type **ptr; |
3746 | lang_statement_union_type *first; | |
3747 | ||
3748 | where = lang_output_section_find (i->where); | |
3749 | if (where != NULL && i->is_before) | |
3750 | { | |
967928e9 | 3751 | do |
53d25da6 | 3752 | where = where->prev; |
66c103b7 | 3753 | while (where != NULL && where->constraint < 0); |
53d25da6 AM |
3754 | } |
3755 | if (where == NULL) | |
3756 | { | |
66c103b7 AM |
3757 | einfo (_("%F%P: %s not found for insert\n"), i->where); |
3758 | return; | |
53d25da6 AM |
3759 | } |
3760 | ||
3761 | /* Deal with reordering the output section statement list. */ | |
3762 | if (last_os != NULL) | |
3763 | { | |
3764 | asection *first_sec, *last_sec; | |
29183214 | 3765 | struct lang_output_section_statement_struct **next; |
53d25da6 AM |
3766 | |
3767 | /* Snip out the output sections we are moving. */ | |
3768 | first_os->prev->next = last_os->next; | |
3769 | if (last_os->next == NULL) | |
29183214 L |
3770 | { |
3771 | next = &first_os->prev->next; | |
3772 | lang_output_section_statement.tail | |
3773 | = (lang_statement_union_type **) next; | |
3774 | } | |
53d25da6 AM |
3775 | else |
3776 | last_os->next->prev = first_os->prev; | |
3777 | /* Add them in at the new position. */ | |
3778 | last_os->next = where->next; | |
3779 | if (where->next == NULL) | |
29183214 L |
3780 | { |
3781 | next = &last_os->next; | |
3782 | lang_output_section_statement.tail | |
3783 | = (lang_statement_union_type **) next; | |
3784 | } | |
53d25da6 AM |
3785 | else |
3786 | where->next->prev = last_os; | |
3787 | first_os->prev = where; | |
3788 | where->next = first_os; | |
3789 | ||
3790 | /* Move the bfd sections in the same way. */ | |
3791 | first_sec = NULL; | |
3792 | last_sec = NULL; | |
3793 | for (os = first_os; os != NULL; os = os->next) | |
3794 | { | |
66c103b7 | 3795 | os->constraint = -2 - os->constraint; |
53d25da6 AM |
3796 | if (os->bfd_section != NULL |
3797 | && os->bfd_section->owner != NULL) | |
3798 | { | |
3799 | last_sec = os->bfd_section; | |
3800 | if (first_sec == NULL) | |
3801 | first_sec = last_sec; | |
3802 | } | |
3803 | if (os == last_os) | |
3804 | break; | |
3805 | } | |
3806 | if (last_sec != NULL) | |
3807 | { | |
3808 | asection *sec = where->bfd_section; | |
3809 | if (sec == NULL) | |
3810 | sec = output_prev_sec_find (where); | |
3811 | ||
3812 | /* The place we want to insert must come after the | |
3813 | sections we are moving. So if we find no | |
3814 | section or if the section is the same as our | |
3815 | last section, then no move is needed. */ | |
3816 | if (sec != NULL && sec != last_sec) | |
3817 | { | |
3818 | /* Trim them off. */ | |
3819 | if (first_sec->prev != NULL) | |
3820 | first_sec->prev->next = last_sec->next; | |
3821 | else | |
f13a99db | 3822 | link_info.output_bfd->sections = last_sec->next; |
53d25da6 AM |
3823 | if (last_sec->next != NULL) |
3824 | last_sec->next->prev = first_sec->prev; | |
3825 | else | |
f13a99db | 3826 | link_info.output_bfd->section_last = first_sec->prev; |
53d25da6 AM |
3827 | /* Add back. */ |
3828 | last_sec->next = sec->next; | |
3829 | if (sec->next != NULL) | |
3830 | sec->next->prev = last_sec; | |
3831 | else | |
f13a99db | 3832 | link_info.output_bfd->section_last = last_sec; |
53d25da6 AM |
3833 | first_sec->prev = sec; |
3834 | sec->next = first_sec; | |
3835 | } | |
3836 | } | |
3837 | ||
3838 | first_os = NULL; | |
3839 | last_os = NULL; | |
3840 | } | |
3841 | ||
3842 | ptr = insert_os_after (where); | |
3843 | /* Snip everything after the abs_section output statement we | |
3844 | know is at the start of the list, up to and including | |
3845 | the insert statement we are currently processing. */ | |
3846 | first = lang_output_section_statement.head->header.next; | |
3847 | lang_output_section_statement.head->header.next = (*s)->header.next; | |
3848 | /* Add them back where they belong. */ | |
3849 | *s = *ptr; | |
3850 | if (*s == NULL) | |
3851 | statement_list.tail = s; | |
3852 | *ptr = first; | |
3853 | s = &lang_output_section_statement.head; | |
252b5132 RH |
3854 | } |
3855 | } | |
66c103b7 AM |
3856 | |
3857 | /* Undo constraint twiddling. */ | |
3858 | for (os = first_os; os != NULL; os = os->next) | |
3859 | { | |
3860 | os->constraint = -2 - os->constraint; | |
3861 | if (os == last_os) | |
3862 | break; | |
3863 | } | |
252b5132 RH |
3864 | } |
3865 | ||
4bd5a393 AM |
3866 | /* An output section might have been removed after its statement was |
3867 | added. For example, ldemul_before_allocation can remove dynamic | |
3868 | sections if they turn out to be not needed. Clean them up here. */ | |
3869 | ||
8423293d | 3870 | void |
1579bae1 | 3871 | strip_excluded_output_sections (void) |
4bd5a393 | 3872 | { |
afd7a018 | 3873 | lang_output_section_statement_type *os; |
4bd5a393 | 3874 | |
046183de | 3875 | /* Run lang_size_sections (if not already done). */ |
e9ee469a AM |
3876 | if (expld.phase != lang_mark_phase_enum) |
3877 | { | |
3878 | expld.phase = lang_mark_phase_enum; | |
3879 | expld.dataseg.phase = exp_dataseg_none; | |
3880 | one_lang_size_sections_pass (NULL, FALSE); | |
3881 | lang_reset_memory_regions (); | |
3882 | } | |
3883 | ||
afd7a018 AM |
3884 | for (os = &lang_output_section_statement.head->output_section_statement; |
3885 | os != NULL; | |
3886 | os = os->next) | |
4bd5a393 | 3887 | { |
75ff4589 L |
3888 | asection *output_section; |
3889 | bfd_boolean exclude; | |
4bd5a393 | 3890 | |
66c103b7 | 3891 | if (os->constraint < 0) |
0841712e | 3892 | continue; |
8423293d | 3893 | |
75ff4589 L |
3894 | output_section = os->bfd_section; |
3895 | if (output_section == NULL) | |
8423293d AM |
3896 | continue; |
3897 | ||
32124d5b AM |
3898 | exclude = (output_section->rawsize == 0 |
3899 | && (output_section->flags & SEC_KEEP) == 0 | |
f13a99db | 3900 | && !bfd_section_removed_from_list (link_info.output_bfd, |
32124d5b AM |
3901 | output_section)); |
3902 | ||
3903 | /* Some sections have not yet been sized, notably .gnu.version, | |
3904 | .dynsym, .dynstr and .hash. These all have SEC_LINKER_CREATED | |
3905 | input sections, so don't drop output sections that have such | |
3906 | input sections unless they are also marked SEC_EXCLUDE. */ | |
3907 | if (exclude && output_section->map_head.s != NULL) | |
75ff4589 L |
3908 | { |
3909 | asection *s; | |
8423293d | 3910 | |
32124d5b | 3911 | for (s = output_section->map_head.s; s != NULL; s = s->map_head.s) |
b514e6a5 AM |
3912 | if ((s->flags & SEC_EXCLUDE) == 0 |
3913 | && ((s->flags & SEC_LINKER_CREATED) != 0 | |
3914 | || link_info.emitrelocations)) | |
e9ee469a AM |
3915 | { |
3916 | exclude = FALSE; | |
3917 | break; | |
3918 | } | |
75ff4589 | 3919 | } |
8423293d | 3920 | |
32124d5b AM |
3921 | /* TODO: Don't just junk map_head.s, turn them into link_orders. */ |
3922 | output_section->map_head.link_order = NULL; | |
3923 | output_section->map_tail.link_order = NULL; | |
3924 | ||
3925 | if (exclude) | |
4bd5a393 | 3926 | { |
e9ee469a AM |
3927 | /* We don't set bfd_section to NULL since bfd_section of the |
3928 | removed output section statement may still be used. */ | |
6d8bf25d | 3929 | if (!os->update_dot) |
74541ad4 | 3930 | os->ignored = TRUE; |
e9ee469a | 3931 | output_section->flags |= SEC_EXCLUDE; |
f13a99db AM |
3932 | bfd_section_list_remove (link_info.output_bfd, output_section); |
3933 | link_info.output_bfd->section_count--; | |
4bd5a393 AM |
3934 | } |
3935 | } | |
8423293d AM |
3936 | |
3937 | /* Stop future calls to lang_add_section from messing with map_head | |
3938 | and map_tail link_order fields. */ | |
3939 | stripped_excluded_sections = TRUE; | |
4bd5a393 AM |
3940 | } |
3941 | ||
252b5132 | 3942 | static void |
1579bae1 AM |
3943 | print_output_section_statement |
3944 | (lang_output_section_statement_type *output_section_statement) | |
252b5132 RH |
3945 | { |
3946 | asection *section = output_section_statement->bfd_section; | |
3947 | int len; | |
3948 | ||
3949 | if (output_section_statement != abs_output_section) | |
3950 | { | |
3951 | minfo ("\n%s", output_section_statement->name); | |
3952 | ||
3953 | if (section != NULL) | |
3954 | { | |
3955 | print_dot = section->vma; | |
3956 | ||
3957 | len = strlen (output_section_statement->name); | |
3958 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
3959 | { | |
3960 | print_nl (); | |
3961 | len = 0; | |
3962 | } | |
3963 | while (len < SECTION_NAME_MAP_LENGTH) | |
3964 | { | |
3965 | print_space (); | |
3966 | ++len; | |
3967 | } | |
3968 | ||
eea6121a | 3969 | minfo ("0x%V %W", section->vma, section->size); |
252b5132 | 3970 | |
67f744f3 AM |
3971 | if (section->vma != section->lma) |
3972 | minfo (_(" load address 0x%V"), section->lma); | |
5590fba9 NC |
3973 | |
3974 | if (output_section_statement->update_dot_tree != NULL) | |
3975 | exp_fold_tree (output_section_statement->update_dot_tree, | |
3976 | bfd_abs_section_ptr, &print_dot); | |
252b5132 RH |
3977 | } |
3978 | ||
3979 | print_nl (); | |
3980 | } | |
3981 | ||
3982 | print_statement_list (output_section_statement->children.head, | |
3983 | output_section_statement); | |
3984 | } | |
3985 | ||
3986 | static void | |
1579bae1 AM |
3987 | print_assignment (lang_assignment_statement_type *assignment, |
3988 | lang_output_section_statement_type *output_section) | |
252b5132 | 3989 | { |
3b83e13a NC |
3990 | unsigned int i; |
3991 | bfd_boolean is_dot; | |
afd7a018 | 3992 | etree_type *tree; |
8658f989 | 3993 | asection *osec; |
252b5132 RH |
3994 | |
3995 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
3996 | print_space (); | |
3997 | ||
afd7a018 AM |
3998 | if (assignment->exp->type.node_class == etree_assert) |
3999 | { | |
3b83e13a | 4000 | is_dot = FALSE; |
afd7a018 AM |
4001 | tree = assignment->exp->assert_s.child; |
4002 | } | |
4003 | else | |
4004 | { | |
4005 | const char *dst = assignment->exp->assign.dst; | |
3b83e13a NC |
4006 | |
4007 | is_dot = (dst[0] == '.' && dst[1] == 0); | |
7dd9c6eb AM |
4008 | if (!is_dot) |
4009 | expld.assign_name = dst; | |
afd7a018 AM |
4010 | tree = assignment->exp->assign.src; |
4011 | } | |
4012 | ||
8658f989 AM |
4013 | osec = output_section->bfd_section; |
4014 | if (osec == NULL) | |
4015 | osec = bfd_abs_section_ptr; | |
4016 | exp_fold_tree (tree, osec, &print_dot); | |
e9ee469a | 4017 | if (expld.result.valid_p) |
7b17f854 | 4018 | { |
7b17f854 RS |
4019 | bfd_vma value; |
4020 | ||
4194268f AM |
4021 | if (assignment->exp->type.node_class == etree_assert |
4022 | || is_dot | |
4023 | || expld.assign_name != NULL) | |
3b83e13a | 4024 | { |
e9ee469a | 4025 | value = expld.result.value; |
10dbd1f3 | 4026 | |
7542af2a | 4027 | if (expld.result.section != NULL) |
e9ee469a | 4028 | value += expld.result.section->vma; |
7b17f854 | 4029 | |
3b83e13a NC |
4030 | minfo ("0x%V", value); |
4031 | if (is_dot) | |
4032 | print_dot = value; | |
4033 | } | |
4034 | else | |
4035 | { | |
4036 | struct bfd_link_hash_entry *h; | |
4037 | ||
4038 | h = bfd_link_hash_lookup (link_info.hash, assignment->exp->assign.dst, | |
4039 | FALSE, FALSE, TRUE); | |
4040 | if (h) | |
4041 | { | |
10dbd1f3 | 4042 | value = h->u.def.value; |
f37a7048 NS |
4043 | value += h->u.def.section->output_section->vma; |
4044 | value += h->u.def.section->output_offset; | |
3b83e13a NC |
4045 | |
4046 | minfo ("[0x%V]", value); | |
4047 | } | |
4048 | else | |
4049 | minfo ("[unresolved]"); | |
4050 | } | |
7b17f854 | 4051 | } |
252b5132 RH |
4052 | else |
4053 | { | |
4054 | minfo ("*undef* "); | |
4055 | #ifdef BFD64 | |
4056 | minfo (" "); | |
4057 | #endif | |
4058 | } | |
4194268f | 4059 | expld.assign_name = NULL; |
252b5132 RH |
4060 | |
4061 | minfo (" "); | |
252b5132 | 4062 | exp_print_tree (assignment->exp); |
252b5132 RH |
4063 | print_nl (); |
4064 | } | |
4065 | ||
4066 | static void | |
1579bae1 | 4067 | print_input_statement (lang_input_statement_type *statm) |
252b5132 | 4068 | { |
967928e9 AM |
4069 | if (statm->filename != NULL |
4070 | && (statm->the_bfd == NULL | |
4071 | || (statm->the_bfd->flags & BFD_LINKER_CREATED) == 0)) | |
906e58ca | 4072 | fprintf (config.map_file, "LOAD %s\n", statm->filename); |
252b5132 RH |
4073 | } |
4074 | ||
4075 | /* Print all symbols defined in a particular section. This is called | |
35835446 | 4076 | via bfd_link_hash_traverse, or by print_all_symbols. */ |
252b5132 | 4077 | |
b34976b6 | 4078 | static bfd_boolean |
1579bae1 | 4079 | print_one_symbol (struct bfd_link_hash_entry *hash_entry, void *ptr) |
252b5132 | 4080 | { |
1e9cc1c2 | 4081 | asection *sec = (asection *) ptr; |
252b5132 RH |
4082 | |
4083 | if ((hash_entry->type == bfd_link_hash_defined | |
4084 | || hash_entry->type == bfd_link_hash_defweak) | |
4085 | && sec == hash_entry->u.def.section) | |
4086 | { | |
4087 | int i; | |
4088 | ||
4089 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
4090 | print_space (); | |
4091 | minfo ("0x%V ", | |
4092 | (hash_entry->u.def.value | |
4093 | + hash_entry->u.def.section->output_offset | |
4094 | + hash_entry->u.def.section->output_section->vma)); | |
4095 | ||
4096 | minfo (" %T\n", hash_entry->root.string); | |
4097 | } | |
4098 | ||
b34976b6 | 4099 | return TRUE; |
252b5132 RH |
4100 | } |
4101 | ||
02688209 TG |
4102 | static int |
4103 | hash_entry_addr_cmp (const void *a, const void *b) | |
4104 | { | |
4105 | const struct bfd_link_hash_entry *l = *(const struct bfd_link_hash_entry **)a; | |
4106 | const struct bfd_link_hash_entry *r = *(const struct bfd_link_hash_entry **)b; | |
4107 | ||
4108 | if (l->u.def.value < r->u.def.value) | |
4109 | return -1; | |
4110 | else if (l->u.def.value > r->u.def.value) | |
4111 | return 1; | |
4112 | else | |
4113 | return 0; | |
4114 | } | |
4115 | ||
35835446 | 4116 | static void |
e0f6802f | 4117 | print_all_symbols (asection *sec) |
35835446 | 4118 | { |
6fcc66ab AM |
4119 | input_section_userdata_type *ud |
4120 | = (input_section_userdata_type *) get_userdata (sec); | |
35835446 | 4121 | struct map_symbol_def *def; |
02688209 TG |
4122 | struct bfd_link_hash_entry **entries; |
4123 | unsigned int i; | |
35835446 | 4124 | |
afd7a018 AM |
4125 | if (!ud) |
4126 | return; | |
4127 | ||
35835446 | 4128 | *ud->map_symbol_def_tail = 0; |
1e0061d2 | 4129 | |
02688209 | 4130 | /* Sort the symbols by address. */ |
1e9cc1c2 NC |
4131 | entries = (struct bfd_link_hash_entry **) |
4132 | obstack_alloc (&map_obstack, ud->map_symbol_def_count * sizeof (*entries)); | |
02688209 TG |
4133 | |
4134 | for (i = 0, def = ud->map_symbol_def_head; def; def = def->next, i++) | |
4135 | entries[i] = def->entry; | |
4136 | ||
4137 | qsort (entries, ud->map_symbol_def_count, sizeof (*entries), | |
4724d37e | 4138 | hash_entry_addr_cmp); |
02688209 TG |
4139 | |
4140 | /* Print the symbols. */ | |
4141 | for (i = 0; i < ud->map_symbol_def_count; i++) | |
4142 | print_one_symbol (entries[i], sec); | |
4143 | ||
4144 | obstack_free (&map_obstack, entries); | |
35835446 JR |
4145 | } |
4146 | ||
252b5132 RH |
4147 | /* Print information about an input section to the map file. */ |
4148 | ||
4149 | static void | |
d64703c6 | 4150 | print_input_section (asection *i, bfd_boolean is_discarded) |
252b5132 | 4151 | { |
eea6121a | 4152 | bfd_size_type size = i->size; |
abe6ac95 AM |
4153 | int len; |
4154 | bfd_vma addr; | |
e5caa5e0 AM |
4155 | |
4156 | init_opb (); | |
4d4920ec | 4157 | |
abe6ac95 AM |
4158 | print_space (); |
4159 | minfo ("%s", i->name); | |
252b5132 | 4160 | |
abe6ac95 AM |
4161 | len = 1 + strlen (i->name); |
4162 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
4163 | { | |
4164 | print_nl (); | |
4165 | len = 0; | |
4166 | } | |
4167 | while (len < SECTION_NAME_MAP_LENGTH) | |
4168 | { | |
57ceae94 | 4169 | print_space (); |
abe6ac95 AM |
4170 | ++len; |
4171 | } | |
252b5132 | 4172 | |
f13a99db AM |
4173 | if (i->output_section != NULL |
4174 | && i->output_section->owner == link_info.output_bfd) | |
abe6ac95 AM |
4175 | addr = i->output_section->vma + i->output_offset; |
4176 | else | |
4177 | { | |
4178 | addr = print_dot; | |
d64703c6 TG |
4179 | if (!is_discarded) |
4180 | size = 0; | |
abe6ac95 | 4181 | } |
252b5132 | 4182 | |
abe6ac95 | 4183 | minfo ("0x%V %W %B\n", addr, TO_ADDR (size), i->owner); |
252b5132 | 4184 | |
abe6ac95 AM |
4185 | if (size != i->rawsize && i->rawsize != 0) |
4186 | { | |
4187 | len = SECTION_NAME_MAP_LENGTH + 3; | |
252b5132 | 4188 | #ifdef BFD64 |
abe6ac95 | 4189 | len += 16; |
252b5132 | 4190 | #else |
abe6ac95 | 4191 | len += 8; |
252b5132 | 4192 | #endif |
abe6ac95 AM |
4193 | while (len > 0) |
4194 | { | |
4195 | print_space (); | |
4196 | --len; | |
57ceae94 AM |
4197 | } |
4198 | ||
abe6ac95 AM |
4199 | minfo (_("%W (size before relaxing)\n"), i->rawsize); |
4200 | } | |
252b5132 | 4201 | |
f13a99db AM |
4202 | if (i->output_section != NULL |
4203 | && i->output_section->owner == link_info.output_bfd) | |
abe6ac95 | 4204 | { |
c0f00686 | 4205 | if (link_info.reduce_memory_overheads) |
abe6ac95 AM |
4206 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, i); |
4207 | else | |
4208 | print_all_symbols (i); | |
4209 | ||
5590fba9 NC |
4210 | /* Update print_dot, but make sure that we do not move it |
4211 | backwards - this could happen if we have overlays and a | |
4212 | later overlay is shorter than an earier one. */ | |
4213 | if (addr + TO_ADDR (size) > print_dot) | |
4214 | print_dot = addr + TO_ADDR (size); | |
252b5132 RH |
4215 | } |
4216 | } | |
4217 | ||
4218 | static void | |
1579bae1 | 4219 | print_fill_statement (lang_fill_statement_type *fill) |
252b5132 | 4220 | { |
2c382fb6 AM |
4221 | size_t size; |
4222 | unsigned char *p; | |
4223 | fputs (" FILL mask 0x", config.map_file); | |
4224 | for (p = fill->fill->data, size = fill->fill->size; size != 0; p++, size--) | |
4225 | fprintf (config.map_file, "%02x", *p); | |
4226 | fputs ("\n", config.map_file); | |
252b5132 RH |
4227 | } |
4228 | ||
4229 | static void | |
1579bae1 | 4230 | print_data_statement (lang_data_statement_type *data) |
252b5132 RH |
4231 | { |
4232 | int i; | |
4233 | bfd_vma addr; | |
4234 | bfd_size_type size; | |
4235 | const char *name; | |
4236 | ||
e5caa5e0 | 4237 | init_opb (); |
252b5132 RH |
4238 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
4239 | print_space (); | |
4240 | ||
7fabd029 | 4241 | addr = data->output_offset; |
252b5132 RH |
4242 | if (data->output_section != NULL) |
4243 | addr += data->output_section->vma; | |
4244 | ||
4245 | switch (data->type) | |
4246 | { | |
4247 | default: | |
4248 | abort (); | |
4249 | case BYTE: | |
4250 | size = BYTE_SIZE; | |
4251 | name = "BYTE"; | |
4252 | break; | |
4253 | case SHORT: | |
4254 | size = SHORT_SIZE; | |
4255 | name = "SHORT"; | |
4256 | break; | |
4257 | case LONG: | |
4258 | size = LONG_SIZE; | |
4259 | name = "LONG"; | |
4260 | break; | |
4261 | case QUAD: | |
4262 | size = QUAD_SIZE; | |
4263 | name = "QUAD"; | |
4264 | break; | |
4265 | case SQUAD: | |
4266 | size = QUAD_SIZE; | |
4267 | name = "SQUAD"; | |
4268 | break; | |
4269 | } | |
4270 | ||
4271 | minfo ("0x%V %W %s 0x%v", addr, size, name, data->value); | |
4272 | ||
4273 | if (data->exp->type.node_class != etree_value) | |
4274 | { | |
4275 | print_space (); | |
4276 | exp_print_tree (data->exp); | |
4277 | } | |
4278 | ||
4279 | print_nl (); | |
4280 | ||
e5caa5e0 | 4281 | print_dot = addr + TO_ADDR (size); |
252b5132 RH |
4282 | } |
4283 | ||
4284 | /* Print an address statement. These are generated by options like | |
4285 | -Ttext. */ | |
4286 | ||
4287 | static void | |
1579bae1 | 4288 | print_address_statement (lang_address_statement_type *address) |
252b5132 RH |
4289 | { |
4290 | minfo (_("Address of section %s set to "), address->section_name); | |
4291 | exp_print_tree (address->address); | |
4292 | print_nl (); | |
4293 | } | |
4294 | ||
4295 | /* Print a reloc statement. */ | |
4296 | ||
4297 | static void | |
1579bae1 | 4298 | print_reloc_statement (lang_reloc_statement_type *reloc) |
252b5132 RH |
4299 | { |
4300 | int i; | |
4301 | bfd_vma addr; | |
4302 | bfd_size_type size; | |
4303 | ||
e5caa5e0 | 4304 | init_opb (); |
252b5132 RH |
4305 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
4306 | print_space (); | |
4307 | ||
7fabd029 | 4308 | addr = reloc->output_offset; |
252b5132 RH |
4309 | if (reloc->output_section != NULL) |
4310 | addr += reloc->output_section->vma; | |
4311 | ||
4312 | size = bfd_get_reloc_size (reloc->howto); | |
4313 | ||
4314 | minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name); | |
4315 | ||
4316 | if (reloc->name != NULL) | |
4317 | minfo ("%s+", reloc->name); | |
4318 | else | |
4319 | minfo ("%s+", reloc->section->name); | |
4320 | ||
4321 | exp_print_tree (reloc->addend_exp); | |
4322 | ||
4323 | print_nl (); | |
4324 | ||
e5caa5e0 | 4325 | print_dot = addr + TO_ADDR (size); |
5f992e62 | 4326 | } |
252b5132 RH |
4327 | |
4328 | static void | |
1579bae1 | 4329 | print_padding_statement (lang_padding_statement_type *s) |
252b5132 RH |
4330 | { |
4331 | int len; | |
4332 | bfd_vma addr; | |
4333 | ||
e5caa5e0 | 4334 | init_opb (); |
252b5132 RH |
4335 | minfo (" *fill*"); |
4336 | ||
4337 | len = sizeof " *fill*" - 1; | |
4338 | while (len < SECTION_NAME_MAP_LENGTH) | |
4339 | { | |
4340 | print_space (); | |
4341 | ++len; | |
4342 | } | |
4343 | ||
4344 | addr = s->output_offset; | |
4345 | if (s->output_section != NULL) | |
4346 | addr += s->output_section->vma; | |
5f9b8920 | 4347 | minfo ("0x%V %W ", addr, (bfd_vma) s->size); |
252b5132 | 4348 | |
2c382fb6 AM |
4349 | if (s->fill->size != 0) |
4350 | { | |
4351 | size_t size; | |
4352 | unsigned char *p; | |
4353 | for (p = s->fill->data, size = s->fill->size; size != 0; p++, size--) | |
4354 | fprintf (config.map_file, "%02x", *p); | |
4355 | } | |
252b5132 RH |
4356 | |
4357 | print_nl (); | |
4358 | ||
e5caa5e0 | 4359 | print_dot = addr + TO_ADDR (s->size); |
252b5132 RH |
4360 | } |
4361 | ||
4362 | static void | |
1579bae1 AM |
4363 | print_wild_statement (lang_wild_statement_type *w, |
4364 | lang_output_section_statement_type *os) | |
252b5132 | 4365 | { |
b6bf44ba AM |
4366 | struct wildcard_list *sec; |
4367 | ||
252b5132 RH |
4368 | print_space (); |
4369 | ||
4370 | if (w->filenames_sorted) | |
4371 | minfo ("SORT("); | |
08da4cac | 4372 | if (w->filename != NULL) |
252b5132 RH |
4373 | minfo ("%s", w->filename); |
4374 | else | |
4375 | minfo ("*"); | |
4376 | if (w->filenames_sorted) | |
4377 | minfo (")"); | |
4378 | ||
4379 | minfo ("("); | |
b6bf44ba AM |
4380 | for (sec = w->section_list; sec; sec = sec->next) |
4381 | { | |
4382 | if (sec->spec.sorted) | |
4383 | minfo ("SORT("); | |
4384 | if (sec->spec.exclude_name_list != NULL) | |
4385 | { | |
4386 | name_list *tmp; | |
34786259 | 4387 | minfo ("EXCLUDE_FILE(%s", sec->spec.exclude_name_list->name); |
b6bf44ba | 4388 | for (tmp = sec->spec.exclude_name_list->next; tmp; tmp = tmp->next) |
34786259 AM |
4389 | minfo (" %s", tmp->name); |
4390 | minfo (") "); | |
b6bf44ba AM |
4391 | } |
4392 | if (sec->spec.name != NULL) | |
4393 | minfo ("%s", sec->spec.name); | |
4394 | else | |
4395 | minfo ("*"); | |
4396 | if (sec->spec.sorted) | |
4397 | minfo (")"); | |
34786259 AM |
4398 | if (sec->next) |
4399 | minfo (" "); | |
b6bf44ba | 4400 | } |
252b5132 RH |
4401 | minfo (")"); |
4402 | ||
4403 | print_nl (); | |
4404 | ||
4405 | print_statement_list (w->children.head, os); | |
4406 | } | |
4407 | ||
4408 | /* Print a group statement. */ | |
4409 | ||
4410 | static void | |
1579bae1 AM |
4411 | print_group (lang_group_statement_type *s, |
4412 | lang_output_section_statement_type *os) | |
252b5132 RH |
4413 | { |
4414 | fprintf (config.map_file, "START GROUP\n"); | |
4415 | print_statement_list (s->children.head, os); | |
4416 | fprintf (config.map_file, "END GROUP\n"); | |
4417 | } | |
4418 | ||
4419 | /* Print the list of statements in S. | |
4420 | This can be called for any statement type. */ | |
4421 | ||
4422 | static void | |
1579bae1 AM |
4423 | print_statement_list (lang_statement_union_type *s, |
4424 | lang_output_section_statement_type *os) | |
252b5132 RH |
4425 | { |
4426 | while (s != NULL) | |
4427 | { | |
4428 | print_statement (s, os); | |
bba1a0c0 | 4429 | s = s->header.next; |
252b5132 RH |
4430 | } |
4431 | } | |
4432 | ||
4433 | /* Print the first statement in statement list S. | |
4434 | This can be called for any statement type. */ | |
4435 | ||
4436 | static void | |
1579bae1 AM |
4437 | print_statement (lang_statement_union_type *s, |
4438 | lang_output_section_statement_type *os) | |
252b5132 RH |
4439 | { |
4440 | switch (s->header.type) | |
4441 | { | |
4442 | default: | |
4443 | fprintf (config.map_file, _("Fail with %d\n"), s->header.type); | |
4444 | FAIL (); | |
4445 | break; | |
4446 | case lang_constructors_statement_enum: | |
4447 | if (constructor_list.head != NULL) | |
4448 | { | |
4449 | if (constructors_sorted) | |
4450 | minfo (" SORT (CONSTRUCTORS)\n"); | |
4451 | else | |
4452 | minfo (" CONSTRUCTORS\n"); | |
4453 | print_statement_list (constructor_list.head, os); | |
4454 | } | |
4455 | break; | |
4456 | case lang_wild_statement_enum: | |
4457 | print_wild_statement (&s->wild_statement, os); | |
4458 | break; | |
4459 | case lang_address_statement_enum: | |
4460 | print_address_statement (&s->address_statement); | |
4461 | break; | |
4462 | case lang_object_symbols_statement_enum: | |
4463 | minfo (" CREATE_OBJECT_SYMBOLS\n"); | |
4464 | break; | |
4465 | case lang_fill_statement_enum: | |
4466 | print_fill_statement (&s->fill_statement); | |
4467 | break; | |
4468 | case lang_data_statement_enum: | |
4469 | print_data_statement (&s->data_statement); | |
4470 | break; | |
4471 | case lang_reloc_statement_enum: | |
4472 | print_reloc_statement (&s->reloc_statement); | |
4473 | break; | |
4474 | case lang_input_section_enum: | |
d64703c6 | 4475 | print_input_section (s->input_section.section, FALSE); |
252b5132 RH |
4476 | break; |
4477 | case lang_padding_statement_enum: | |
4478 | print_padding_statement (&s->padding_statement); | |
4479 | break; | |
4480 | case lang_output_section_statement_enum: | |
4481 | print_output_section_statement (&s->output_section_statement); | |
4482 | break; | |
4483 | case lang_assignment_statement_enum: | |
4484 | print_assignment (&s->assignment_statement, os); | |
4485 | break; | |
4486 | case lang_target_statement_enum: | |
4487 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
4488 | break; | |
4489 | case lang_output_statement_enum: | |
4490 | minfo ("OUTPUT(%s", s->output_statement.name); | |
4491 | if (output_target != NULL) | |
4492 | minfo (" %s", output_target); | |
4493 | minfo (")\n"); | |
4494 | break; | |
4495 | case lang_input_statement_enum: | |
4496 | print_input_statement (&s->input_statement); | |
4497 | break; | |
4498 | case lang_group_statement_enum: | |
4499 | print_group (&s->group_statement, os); | |
4500 | break; | |
53d25da6 AM |
4501 | case lang_insert_statement_enum: |
4502 | minfo ("INSERT %s %s\n", | |
4503 | s->insert_statement.is_before ? "BEFORE" : "AFTER", | |
4504 | s->insert_statement.where); | |
4505 | break; | |
252b5132 RH |
4506 | } |
4507 | } | |
4508 | ||
4509 | static void | |
1579bae1 | 4510 | print_statements (void) |
252b5132 RH |
4511 | { |
4512 | print_statement_list (statement_list.head, abs_output_section); | |
4513 | } | |
4514 | ||
4515 | /* Print the first N statements in statement list S to STDERR. | |
4516 | If N == 0, nothing is printed. | |
4517 | If N < 0, the entire list is printed. | |
4518 | Intended to be called from GDB. */ | |
4519 | ||
4520 | void | |
1579bae1 | 4521 | dprint_statement (lang_statement_union_type *s, int n) |
252b5132 RH |
4522 | { |
4523 | FILE *map_save = config.map_file; | |
4524 | ||
4525 | config.map_file = stderr; | |
4526 | ||
4527 | if (n < 0) | |
4528 | print_statement_list (s, abs_output_section); | |
4529 | else | |
4530 | { | |
4531 | while (s && --n >= 0) | |
4532 | { | |
4533 | print_statement (s, abs_output_section); | |
bba1a0c0 | 4534 | s = s->header.next; |
252b5132 RH |
4535 | } |
4536 | } | |
4537 | ||
4538 | config.map_file = map_save; | |
4539 | } | |
4540 | ||
b3327aad | 4541 | static void |
1579bae1 AM |
4542 | insert_pad (lang_statement_union_type **ptr, |
4543 | fill_type *fill, | |
1a69ff95 | 4544 | bfd_size_type alignment_needed, |
1579bae1 AM |
4545 | asection *output_section, |
4546 | bfd_vma dot) | |
252b5132 | 4547 | { |
b7761f11 | 4548 | static fill_type zero_fill; |
e9ee469a | 4549 | lang_statement_union_type *pad = NULL; |
b3327aad | 4550 | |
e9ee469a AM |
4551 | if (ptr != &statement_list.head) |
4552 | pad = ((lang_statement_union_type *) | |
4553 | ((char *) ptr - offsetof (lang_statement_union_type, header.next))); | |
4554 | if (pad != NULL | |
4555 | && pad->header.type == lang_padding_statement_enum | |
4556 | && pad->padding_statement.output_section == output_section) | |
4557 | { | |
4558 | /* Use the existing pad statement. */ | |
4559 | } | |
4560 | else if ((pad = *ptr) != NULL | |
906e58ca NC |
4561 | && pad->header.type == lang_padding_statement_enum |
4562 | && pad->padding_statement.output_section == output_section) | |
252b5132 | 4563 | { |
e9ee469a | 4564 | /* Use the existing pad statement. */ |
252b5132 | 4565 | } |
b3327aad | 4566 | else |
252b5132 | 4567 | { |
b3327aad | 4568 | /* Make a new padding statement, linked into existing chain. */ |
1e9cc1c2 | 4569 | pad = (lang_statement_union_type *) |
4724d37e | 4570 | stat_alloc (sizeof (lang_padding_statement_type)); |
b3327aad AM |
4571 | pad->header.next = *ptr; |
4572 | *ptr = pad; | |
4573 | pad->header.type = lang_padding_statement_enum; | |
4574 | pad->padding_statement.output_section = output_section; | |
1579bae1 | 4575 | if (fill == NULL) |
2c382fb6 | 4576 | fill = &zero_fill; |
b3327aad | 4577 | pad->padding_statement.fill = fill; |
252b5132 | 4578 | } |
b3327aad AM |
4579 | pad->padding_statement.output_offset = dot - output_section->vma; |
4580 | pad->padding_statement.size = alignment_needed; | |
aa4c3319 AM |
4581 | output_section->size = TO_SIZE (dot + TO_ADDR (alignment_needed) |
4582 | - output_section->vma); | |
252b5132 RH |
4583 | } |
4584 | ||
08da4cac KH |
4585 | /* Work out how much this section will move the dot point. */ |
4586 | ||
252b5132 | 4587 | static bfd_vma |
6feb9908 AM |
4588 | size_input_section |
4589 | (lang_statement_union_type **this_ptr, | |
4590 | lang_output_section_statement_type *output_section_statement, | |
4591 | fill_type *fill, | |
4592 | bfd_vma dot) | |
252b5132 RH |
4593 | { |
4594 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
4595 | asection *i = is->section; | |
93d1b056 | 4596 | asection *o = output_section_statement->bfd_section; |
252b5132 | 4597 | |
93d1b056 AM |
4598 | if (i->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
4599 | i->output_offset = i->vma - o->vma; | |
4600 | else if ((i->flags & SEC_EXCLUDE) != 0) | |
4601 | i->output_offset = dot - o->vma; | |
4602 | else | |
252b5132 | 4603 | { |
1a69ff95 | 4604 | bfd_size_type alignment_needed; |
b3327aad AM |
4605 | |
4606 | /* Align this section first to the input sections requirement, | |
4607 | then to the output section's requirement. If this alignment | |
4608 | is greater than any seen before, then record it too. Perform | |
4609 | the alignment by inserting a magic 'padding' statement. */ | |
4610 | ||
252b5132 | 4611 | if (output_section_statement->subsection_alignment != -1) |
b3327aad AM |
4612 | i->alignment_power = output_section_statement->subsection_alignment; |
4613 | ||
b3327aad AM |
4614 | if (o->alignment_power < i->alignment_power) |
4615 | o->alignment_power = i->alignment_power; | |
252b5132 | 4616 | |
b3327aad AM |
4617 | alignment_needed = align_power (dot, i->alignment_power) - dot; |
4618 | ||
4619 | if (alignment_needed != 0) | |
4620 | { | |
e5caa5e0 | 4621 | insert_pad (this_ptr, fill, TO_SIZE (alignment_needed), o, dot); |
b3327aad AM |
4622 | dot += alignment_needed; |
4623 | } | |
252b5132 | 4624 | |
08da4cac | 4625 | /* Remember where in the output section this input section goes. */ |
b3327aad | 4626 | i->output_offset = dot - o->vma; |
252b5132 | 4627 | |
08da4cac | 4628 | /* Mark how big the output section must be to contain this now. */ |
eea6121a AM |
4629 | dot += TO_ADDR (i->size); |
4630 | o->size = TO_SIZE (dot - o->vma); | |
252b5132 | 4631 | } |
252b5132 RH |
4632 | |
4633 | return dot; | |
4634 | } | |
4635 | ||
5daa8fe7 L |
4636 | static int |
4637 | sort_sections_by_lma (const void *arg1, const void *arg2) | |
4638 | { | |
4639 | const asection *sec1 = *(const asection **) arg1; | |
4640 | const asection *sec2 = *(const asection **) arg2; | |
4641 | ||
4642 | if (bfd_section_lma (sec1->owner, sec1) | |
4643 | < bfd_section_lma (sec2->owner, sec2)) | |
4644 | return -1; | |
4645 | else if (bfd_section_lma (sec1->owner, sec1) | |
4646 | > bfd_section_lma (sec2->owner, sec2)) | |
4647 | return 1; | |
7f6a71ff JM |
4648 | else if (sec1->id < sec2->id) |
4649 | return -1; | |
4650 | else if (sec1->id > sec2->id) | |
4651 | return 1; | |
5daa8fe7 L |
4652 | |
4653 | return 0; | |
4654 | } | |
4655 | ||
eea6121a | 4656 | #define IGNORE_SECTION(s) \ |
f4eaaf7f AM |
4657 | ((s->flags & SEC_ALLOC) == 0 \ |
4658 | || ((s->flags & SEC_THREAD_LOCAL) != 0 \ | |
de7f8cc8 | 4659 | && (s->flags & SEC_LOAD) == 0)) |
d1778b88 | 4660 | |
252b5132 | 4661 | /* Check to see if any allocated sections overlap with other allocated |
afd7a018 | 4662 | sections. This can happen if a linker script specifies the output |
20e56351 DJ |
4663 | section addresses of the two sections. Also check whether any memory |
4664 | region has overflowed. */ | |
08da4cac | 4665 | |
252b5132 | 4666 | static void |
1579bae1 | 4667 | lang_check_section_addresses (void) |
252b5132 | 4668 | { |
f4427a75 | 4669 | asection *s, *p; |
5daa8fe7 L |
4670 | asection **sections, **spp; |
4671 | unsigned int count; | |
4672 | bfd_vma s_start; | |
4673 | bfd_vma s_end; | |
f4427a75 AM |
4674 | bfd_vma p_start; |
4675 | bfd_vma p_end; | |
5daa8fe7 | 4676 | bfd_size_type amt; |
20e56351 | 4677 | lang_memory_region_type *m; |
5daa8fe7 | 4678 | |
f13a99db | 4679 | if (bfd_count_sections (link_info.output_bfd) <= 1) |
5daa8fe7 L |
4680 | return; |
4681 | ||
f13a99db | 4682 | amt = bfd_count_sections (link_info.output_bfd) * sizeof (asection *); |
1e9cc1c2 | 4683 | sections = (asection **) xmalloc (amt); |
252b5132 RH |
4684 | |
4685 | /* Scan all sections in the output list. */ | |
5daa8fe7 | 4686 | count = 0; |
f13a99db | 4687 | for (s = link_info.output_bfd->sections; s != NULL; s = s->next) |
33275c22 | 4688 | { |
5daa8fe7 | 4689 | /* Only consider loadable sections with real contents. */ |
f4eaaf7f | 4690 | if (!(s->flags & SEC_LOAD) |
e50d6125 | 4691 | || !(s->flags & SEC_ALLOC) |
ec6d26be | 4692 | || s->size == 0) |
33275c22 | 4693 | continue; |
5f992e62 | 4694 | |
5daa8fe7 L |
4695 | sections[count] = s; |
4696 | count++; | |
4697 | } | |
329c1c86 | 4698 | |
5daa8fe7 L |
4699 | if (count <= 1) |
4700 | return; | |
5f992e62 | 4701 | |
5daa8fe7 L |
4702 | qsort (sections, (size_t) count, sizeof (asection *), |
4703 | sort_sections_by_lma); | |
5f992e62 | 4704 | |
5daa8fe7 L |
4705 | spp = sections; |
4706 | s = *spp++; | |
f4427a75 | 4707 | s_start = s->lma; |
5daa8fe7 L |
4708 | s_end = s_start + TO_ADDR (s->size) - 1; |
4709 | for (count--; count; count--) | |
4710 | { | |
4711 | /* We must check the sections' LMA addresses not their VMA | |
4712 | addresses because overlay sections can have overlapping VMAs | |
4713 | but they must have distinct LMAs. */ | |
f4427a75 AM |
4714 | p = s; |
4715 | p_start = s_start; | |
4716 | p_end = s_end; | |
5daa8fe7 | 4717 | s = *spp++; |
f4427a75 | 4718 | s_start = s->lma; |
5daa8fe7 | 4719 | s_end = s_start + TO_ADDR (s->size) - 1; |
5f992e62 | 4720 | |
f4427a75 AM |
4721 | /* Look for an overlap. We have sorted sections by lma, so we |
4722 | know that s_start >= p_start. Besides the obvious case of | |
4723 | overlap when the current section starts before the previous | |
4724 | one ends, we also must have overlap if the previous section | |
4725 | wraps around the address space. */ | |
4726 | if (s_start <= p_end | |
4727 | || p_end < p_start) | |
ec6d26be | 4728 | einfo (_("%X%P: section %s loaded at [%V,%V] overlaps section %s loaded at [%V,%V]\n"), |
f4427a75 | 4729 | s->name, s_start, s_end, p->name, p_start, p_end); |
33275c22 | 4730 | } |
5daa8fe7 L |
4731 | |
4732 | free (sections); | |
20e56351 DJ |
4733 | |
4734 | /* If any memory region has overflowed, report by how much. | |
4735 | We do not issue this diagnostic for regions that had sections | |
4736 | explicitly placed outside their bounds; os_region_check's | |
4737 | diagnostics are adequate for that case. | |
4738 | ||
4739 | FIXME: It is conceivable that m->current - (m->origin + m->length) | |
4740 | might overflow a 32-bit integer. There is, alas, no way to print | |
4741 | a bfd_vma quantity in decimal. */ | |
4742 | for (m = lang_memory_region_list; m; m = m->next) | |
4743 | if (m->had_full_message) | |
4a93e180 NC |
4744 | einfo (_("%X%P: region `%s' overflowed by %ld bytes\n"), |
4745 | m->name_list.name, (long)(m->current - (m->origin + m->length))); | |
20e56351 | 4746 | |
252b5132 RH |
4747 | } |
4748 | ||
562d3460 TW |
4749 | /* Make sure the new address is within the region. We explicitly permit the |
4750 | current address to be at the exact end of the region when the address is | |
4751 | non-zero, in case the region is at the end of addressable memory and the | |
5f992e62 | 4752 | calculation wraps around. */ |
562d3460 TW |
4753 | |
4754 | static void | |
1579bae1 | 4755 | os_region_check (lang_output_section_statement_type *os, |
6bdafbeb | 4756 | lang_memory_region_type *region, |
1579bae1 | 4757 | etree_type *tree, |
91d6fa6a | 4758 | bfd_vma rbase) |
562d3460 TW |
4759 | { |
4760 | if ((region->current < region->origin | |
4761 | || (region->current - region->origin > region->length)) | |
4762 | && ((region->current != region->origin + region->length) | |
91d6fa6a | 4763 | || rbase == 0)) |
562d3460 | 4764 | { |
1579bae1 | 4765 | if (tree != NULL) |
b7a26f91 | 4766 | { |
4a93e180 NC |
4767 | einfo (_("%X%P: address 0x%v of %B section `%s'" |
4768 | " is not within region `%s'\n"), | |
b7a26f91 KH |
4769 | region->current, |
4770 | os->bfd_section->owner, | |
4771 | os->bfd_section->name, | |
4a93e180 | 4772 | region->name_list.name); |
b7a26f91 | 4773 | } |
20e56351 | 4774 | else if (!region->had_full_message) |
b7a26f91 | 4775 | { |
20e56351 DJ |
4776 | region->had_full_message = TRUE; |
4777 | ||
4a93e180 | 4778 | einfo (_("%X%P: %B section `%s' will not fit in region `%s'\n"), |
b7a26f91 | 4779 | os->bfd_section->owner, |
20e56351 | 4780 | os->bfd_section->name, |
4a93e180 | 4781 | region->name_list.name); |
b7a26f91 | 4782 | } |
562d3460 TW |
4783 | } |
4784 | } | |
4785 | ||
252b5132 RH |
4786 | /* Set the sizes for all the output sections. */ |
4787 | ||
2d20f7bf | 4788 | static bfd_vma |
1579bae1 | 4789 | lang_size_sections_1 |
e535e147 | 4790 | (lang_statement_union_type **prev, |
1579bae1 | 4791 | lang_output_section_statement_type *output_section_statement, |
1579bae1 AM |
4792 | fill_type *fill, |
4793 | bfd_vma dot, | |
4794 | bfd_boolean *relax, | |
4795 | bfd_boolean check_regions) | |
252b5132 | 4796 | { |
e535e147 AM |
4797 | lang_statement_union_type *s; |
4798 | ||
252b5132 | 4799 | /* Size up the sections from their constituent parts. */ |
e535e147 | 4800 | for (s = *prev; s != NULL; s = s->header.next) |
252b5132 RH |
4801 | { |
4802 | switch (s->header.type) | |
4803 | { | |
4804 | case lang_output_section_statement_enum: | |
4805 | { | |
13075d04 | 4806 | bfd_vma newdot, after, dotdelta; |
d1778b88 | 4807 | lang_output_section_statement_type *os; |
cde9e0be | 4808 | lang_memory_region_type *r; |
c5b0a9ef | 4809 | int section_alignment = 0; |
252b5132 | 4810 | |
d1778b88 | 4811 | os = &s->output_section_statement; |
8658f989 AM |
4812 | if (os->constraint == -1) |
4813 | break; | |
4814 | ||
fd68d03d AM |
4815 | /* FIXME: We shouldn't need to zero section vmas for ld -r |
4816 | here, in lang_insert_orphan, or in the default linker scripts. | |
4817 | This is covering for coff backend linker bugs. See PR6945. */ | |
4818 | if (os->addr_tree == NULL | |
4819 | && link_info.relocatable | |
4820 | && (bfd_get_flavour (link_info.output_bfd) | |
4821 | == bfd_target_coff_flavour)) | |
eceda120 | 4822 | os->addr_tree = exp_intop (0); |
a5df8c84 AM |
4823 | if (os->addr_tree != NULL) |
4824 | { | |
cde9e0be | 4825 | os->processed_vma = FALSE; |
a5df8c84 | 4826 | exp_fold_tree (os->addr_tree, bfd_abs_section_ptr, &dot); |
a5df8c84 | 4827 | |
3bf9618b | 4828 | if (expld.result.valid_p) |
7542af2a AM |
4829 | { |
4830 | dot = expld.result.value; | |
4831 | if (expld.result.section != NULL) | |
4832 | dot += expld.result.section->vma; | |
4833 | } | |
3bf9618b | 4834 | else if (expld.phase != lang_mark_phase_enum) |
a5df8c84 AM |
4835 | einfo (_("%F%S: non constant or forward reference" |
4836 | " address expression for section %s\n"), | |
dab69f68 | 4837 | os->addr_tree, os->name); |
a5df8c84 AM |
4838 | } |
4839 | ||
e9ee469a | 4840 | if (os->bfd_section == NULL) |
75ff4589 | 4841 | /* This section was removed or never actually created. */ |
252b5132 RH |
4842 | break; |
4843 | ||
4844 | /* If this is a COFF shared library section, use the size and | |
4845 | address from the input section. FIXME: This is COFF | |
4846 | specific; it would be cleaner if there were some other way | |
4847 | to do this, but nothing simple comes to mind. */ | |
f13a99db AM |
4848 | if (((bfd_get_flavour (link_info.output_bfd) |
4849 | == bfd_target_ecoff_flavour) | |
4850 | || (bfd_get_flavour (link_info.output_bfd) | |
4851 | == bfd_target_coff_flavour)) | |
ebe372c1 | 4852 | && (os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) |
252b5132 | 4853 | { |
08da4cac | 4854 | asection *input; |
252b5132 RH |
4855 | |
4856 | if (os->children.head == NULL | |
bba1a0c0 | 4857 | || os->children.head->header.next != NULL |
6feb9908 AM |
4858 | || (os->children.head->header.type |
4859 | != lang_input_section_enum)) | |
4860 | einfo (_("%P%X: Internal error on COFF shared library" | |
4861 | " section %s\n"), os->name); | |
252b5132 RH |
4862 | |
4863 | input = os->children.head->input_section.section; | |
4864 | bfd_set_section_vma (os->bfd_section->owner, | |
4865 | os->bfd_section, | |
4866 | bfd_section_vma (input->owner, input)); | |
eea6121a | 4867 | os->bfd_section->size = input->size; |
252b5132 RH |
4868 | break; |
4869 | } | |
4870 | ||
a5df8c84 | 4871 | newdot = dot; |
13075d04 | 4872 | dotdelta = 0; |
252b5132 RH |
4873 | if (bfd_is_abs_section (os->bfd_section)) |
4874 | { | |
4875 | /* No matter what happens, an abs section starts at zero. */ | |
4876 | ASSERT (os->bfd_section->vma == 0); | |
4877 | } | |
4878 | else | |
4879 | { | |
1579bae1 | 4880 | if (os->addr_tree == NULL) |
252b5132 RH |
4881 | { |
4882 | /* No address specified for this section, get one | |
4883 | from the region specification. */ | |
1579bae1 | 4884 | if (os->region == NULL |
6feb9908 | 4885 | || ((os->bfd_section->flags & (SEC_ALLOC | SEC_LOAD)) |
4a93e180 NC |
4886 | && os->region->name_list.name[0] == '*' |
4887 | && strcmp (os->region->name_list.name, | |
6feb9908 | 4888 | DEFAULT_MEMORY_REGION) == 0)) |
252b5132 RH |
4889 | { |
4890 | os->region = lang_memory_default (os->bfd_section); | |
4891 | } | |
4892 | ||
4893 | /* If a loadable section is using the default memory | |
4894 | region, and some non default memory regions were | |
66184979 | 4895 | defined, issue an error message. */ |
f0636a44 AM |
4896 | if (!os->ignored |
4897 | && !IGNORE_SECTION (os->bfd_section) | |
1049f94e | 4898 | && ! link_info.relocatable |
cf888e70 | 4899 | && check_regions |
4a93e180 | 4900 | && strcmp (os->region->name_list.name, |
6feb9908 | 4901 | DEFAULT_MEMORY_REGION) == 0 |
252b5132 | 4902 | && lang_memory_region_list != NULL |
4a93e180 | 4903 | && (strcmp (lang_memory_region_list->name_list.name, |
a747ee4d | 4904 | DEFAULT_MEMORY_REGION) != 0 |
e9ee469a AM |
4905 | || lang_memory_region_list->next != NULL) |
4906 | && expld.phase != lang_mark_phase_enum) | |
66184979 NC |
4907 | { |
4908 | /* By default this is an error rather than just a | |
4909 | warning because if we allocate the section to the | |
4910 | default memory region we can end up creating an | |
07f3b6ad KH |
4911 | excessively large binary, or even seg faulting when |
4912 | attempting to perform a negative seek. See | |
6feb9908 | 4913 | sources.redhat.com/ml/binutils/2003-04/msg00423.html |
66184979 NC |
4914 | for an example of this. This behaviour can be |
4915 | overridden by the using the --no-check-sections | |
4916 | switch. */ | |
4917 | if (command_line.check_section_addresses) | |
6feb9908 AM |
4918 | einfo (_("%P%F: error: no memory region specified" |
4919 | " for loadable section `%s'\n"), | |
f13a99db | 4920 | bfd_get_section_name (link_info.output_bfd, |
66184979 NC |
4921 | os->bfd_section)); |
4922 | else | |
6feb9908 AM |
4923 | einfo (_("%P: warning: no memory region specified" |
4924 | " for loadable section `%s'\n"), | |
f13a99db | 4925 | bfd_get_section_name (link_info.output_bfd, |
66184979 NC |
4926 | os->bfd_section)); |
4927 | } | |
252b5132 | 4928 | |
e9ee469a | 4929 | newdot = os->region->current; |
c5b0a9ef | 4930 | section_alignment = os->bfd_section->alignment_power; |
252b5132 | 4931 | } |
94b50910 | 4932 | else |
c5b0a9ef | 4933 | section_alignment = os->section_alignment; |
5f992e62 | 4934 | |
7270c5ed | 4935 | /* Align to what the section needs. */ |
c5b0a9ef | 4936 | if (section_alignment > 0) |
94b50910 AM |
4937 | { |
4938 | bfd_vma savedot = newdot; | |
c5b0a9ef | 4939 | newdot = align_power (newdot, section_alignment); |
252b5132 | 4940 | |
13075d04 SH |
4941 | dotdelta = newdot - savedot; |
4942 | if (dotdelta != 0 | |
94b50910 AM |
4943 | && (config.warn_section_align |
4944 | || os->addr_tree != NULL) | |
4945 | && expld.phase != lang_mark_phase_enum) | |
4946 | einfo (_("%P: warning: changing start of section" | |
4947 | " %s by %lu bytes\n"), | |
13075d04 | 4948 | os->name, (unsigned long) dotdelta); |
94b50910 | 4949 | } |
252b5132 | 4950 | |
eceda120 | 4951 | bfd_set_section_vma (0, os->bfd_section, newdot); |
5f992e62 | 4952 | |
252b5132 RH |
4953 | os->bfd_section->output_offset = 0; |
4954 | } | |
4955 | ||
e535e147 | 4956 | lang_size_sections_1 (&os->children.head, os, |
e9ee469a AM |
4957 | os->fill, newdot, relax, check_regions); |
4958 | ||
cde9e0be | 4959 | os->processed_vma = TRUE; |
e9ee469a AM |
4960 | |
4961 | if (bfd_is_abs_section (os->bfd_section) || os->ignored) | |
2f475487 AM |
4962 | /* Except for some special linker created sections, |
4963 | no output section should change from zero size | |
4964 | after strip_excluded_output_sections. A non-zero | |
4965 | size on an ignored section indicates that some | |
4966 | input section was not sized early enough. */ | |
4967 | ASSERT (os->bfd_section->size == 0); | |
cde9e0be | 4968 | else |
e9ee469a | 4969 | { |
cde9e0be AM |
4970 | dot = os->bfd_section->vma; |
4971 | ||
4972 | /* Put the section within the requested block size, or | |
4973 | align at the block boundary. */ | |
4974 | after = ((dot | |
4975 | + TO_ADDR (os->bfd_section->size) | |
4976 | + os->block_value - 1) | |
4977 | & - (bfd_vma) os->block_value); | |
4978 | ||
4979 | os->bfd_section->size = TO_SIZE (after - os->bfd_section->vma); | |
4980 | } | |
4981 | ||
4982 | /* Set section lma. */ | |
4983 | r = os->region; | |
4984 | if (r == NULL) | |
4985 | r = lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE); | |
4986 | ||
4987 | if (os->load_base) | |
4988 | { | |
4989 | bfd_vma lma = exp_get_abs_int (os->load_base, 0, "load base"); | |
4990 | os->bfd_section->lma = lma; | |
e9ee469a | 4991 | } |
07dfcf38 | 4992 | else if (os->lma_region != NULL) |
cde9e0be AM |
4993 | { |
4994 | bfd_vma lma = os->lma_region->current; | |
e9ee469a | 4995 | |
13075d04 SH |
4996 | if (os->align_lma_with_input) |
4997 | lma += dotdelta; | |
4998 | else | |
4999 | { | |
5000 | /* When LMA_REGION is the same as REGION, align the LMA | |
5001 | as we did for the VMA, possibly including alignment | |
5002 | from the bfd section. If a different region, then | |
5003 | only align according to the value in the output | |
5004 | statement. */ | |
5005 | if (os->lma_region != os->region) | |
5006 | section_alignment = os->section_alignment; | |
5007 | if (section_alignment > 0) | |
5008 | lma = align_power (lma, section_alignment); | |
5009 | } | |
cde9e0be AM |
5010 | os->bfd_section->lma = lma; |
5011 | } | |
dc0b6aa0 AM |
5012 | else if (r->last_os != NULL |
5013 | && (os->bfd_section->flags & SEC_ALLOC) != 0) | |
cde9e0be AM |
5014 | { |
5015 | bfd_vma lma; | |
5016 | asection *last; | |
5017 | ||
5018 | last = r->last_os->output_section_statement.bfd_section; | |
dc0b6aa0 AM |
5019 | |
5020 | /* A backwards move of dot should be accompanied by | |
5021 | an explicit assignment to the section LMA (ie. | |
91eb6c46 | 5022 | os->load_base set) because backwards moves can |
dc0b6aa0 | 5023 | create overlapping LMAs. */ |
264b6205 | 5024 | if (dot < last->vma |
91eb6c46 AM |
5025 | && os->bfd_section->size != 0 |
5026 | && dot + os->bfd_section->size <= last->vma) | |
dc0b6aa0 | 5027 | { |
dc0b6aa0 AM |
5028 | /* If dot moved backwards then leave lma equal to |
5029 | vma. This is the old default lma, which might | |
5030 | just happen to work when the backwards move is | |
91eb6c46 AM |
5031 | sufficiently large. Nag if this changes anything, |
5032 | so people can fix their linker scripts. */ | |
5033 | ||
5034 | if (last->vma != last->lma) | |
5035 | einfo (_("%P: warning: dot moved backwards before `%s'\n"), | |
5036 | os->name); | |
dc0b6aa0 AM |
5037 | } |
5038 | else | |
cde9e0be | 5039 | { |
152d792f AM |
5040 | /* If this is an overlay, set the current lma to that |
5041 | at the end of the previous section. */ | |
5042 | if (os->sectype == overlay_section) | |
cde9e0be AM |
5043 | lma = last->lma + last->size; |
5044 | ||
5045 | /* Otherwise, keep the same lma to vma relationship | |
5046 | as the previous section. */ | |
5047 | else | |
5048 | lma = dot + last->lma - last->vma; | |
5049 | ||
c5b0a9ef AM |
5050 | if (section_alignment > 0) |
5051 | lma = align_power (lma, section_alignment); | |
cde9e0be AM |
5052 | os->bfd_section->lma = lma; |
5053 | } | |
5054 | } | |
5055 | os->processed_lma = TRUE; | |
5f992e62 | 5056 | |
cde9e0be AM |
5057 | if (bfd_is_abs_section (os->bfd_section) || os->ignored) |
5058 | break; | |
252b5132 | 5059 | |
cde9e0be AM |
5060 | /* Keep track of normal sections using the default |
5061 | lma region. We use this to set the lma for | |
5062 | following sections. Overlays or other linker | |
5063 | script assignment to lma might mean that the | |
dc0b6aa0 AM |
5064 | default lma == vma is incorrect. |
5065 | To avoid warnings about dot moving backwards when using | |
5066 | -Ttext, don't start tracking sections until we find one | |
5067 | of non-zero size or with lma set differently to vma. */ | |
cde9e0be AM |
5068 | if (((os->bfd_section->flags & SEC_HAS_CONTENTS) != 0 |
5069 | || (os->bfd_section->flags & SEC_THREAD_LOCAL) == 0) | |
dc0b6aa0 AM |
5070 | && (os->bfd_section->flags & SEC_ALLOC) != 0 |
5071 | && (os->bfd_section->size != 0 | |
264b6205 AM |
5072 | || (r->last_os == NULL |
5073 | && os->bfd_section->vma != os->bfd_section->lma) | |
5074 | || (r->last_os != NULL | |
5075 | && dot >= (r->last_os->output_section_statement | |
ea0c3cd5 | 5076 | .bfd_section->vma))) |
cde9e0be AM |
5077 | && os->lma_region == NULL |
5078 | && !link_info.relocatable) | |
5079 | r->last_os = s; | |
9f88b410 | 5080 | |
e5caec89 NS |
5081 | /* .tbss sections effectively have zero size. */ |
5082 | if ((os->bfd_section->flags & SEC_HAS_CONTENTS) != 0 | |
5083 | || (os->bfd_section->flags & SEC_THREAD_LOCAL) == 0 | |
5084 | || link_info.relocatable) | |
13075d04 SH |
5085 | dotdelta = TO_ADDR (os->bfd_section->size); |
5086 | else | |
5087 | dotdelta = 0; | |
5088 | dot += dotdelta; | |
e5caec89 | 5089 | |
9f88b410 | 5090 | if (os->update_dot_tree != 0) |
e9ee469a | 5091 | exp_fold_tree (os->update_dot_tree, bfd_abs_section_ptr, &dot); |
9f88b410 | 5092 | |
252b5132 RH |
5093 | /* Update dot in the region ? |
5094 | We only do this if the section is going to be allocated, | |
5095 | since unallocated sections do not contribute to the region's | |
2e76e85a | 5096 | overall size in memory. */ |
1579bae1 | 5097 | if (os->region != NULL |
2e76e85a | 5098 | && (os->bfd_section->flags & (SEC_ALLOC | SEC_LOAD))) |
252b5132 RH |
5099 | { |
5100 | os->region->current = dot; | |
5f992e62 | 5101 | |
cf888e70 NC |
5102 | if (check_regions) |
5103 | /* Make sure the new address is within the region. */ | |
5104 | os_region_check (os, os->region, os->addr_tree, | |
5105 | os->bfd_section->vma); | |
08da4cac | 5106 | |
a2cab753 | 5107 | if (os->lma_region != NULL && os->lma_region != os->region |
13075d04 SH |
5108 | && ((os->bfd_section->flags & SEC_LOAD) |
5109 | || os->align_lma_with_input)) | |
08da4cac | 5110 | { |
13075d04 | 5111 | os->lma_region->current = os->bfd_section->lma + dotdelta; |
66e28d60 | 5112 | |
cf888e70 NC |
5113 | if (check_regions) |
5114 | os_region_check (os, os->lma_region, NULL, | |
cde9e0be | 5115 | os->bfd_section->lma); |
08da4cac | 5116 | } |
252b5132 RH |
5117 | } |
5118 | } | |
5119 | break; | |
5120 | ||
5121 | case lang_constructors_statement_enum: | |
e535e147 | 5122 | dot = lang_size_sections_1 (&constructor_list.head, |
2d20f7bf | 5123 | output_section_statement, |
cf888e70 | 5124 | fill, dot, relax, check_regions); |
252b5132 RH |
5125 | break; |
5126 | ||
5127 | case lang_data_statement_enum: | |
5128 | { | |
5129 | unsigned int size = 0; | |
5130 | ||
7fabd029 | 5131 | s->data_statement.output_offset = |
08da4cac | 5132 | dot - output_section_statement->bfd_section->vma; |
252b5132 RH |
5133 | s->data_statement.output_section = |
5134 | output_section_statement->bfd_section; | |
5135 | ||
1b493742 NS |
5136 | /* We might refer to provided symbols in the expression, and |
5137 | need to mark them as needed. */ | |
e9ee469a | 5138 | exp_fold_tree (s->data_statement.exp, bfd_abs_section_ptr, &dot); |
1b493742 | 5139 | |
252b5132 RH |
5140 | switch (s->data_statement.type) |
5141 | { | |
08da4cac KH |
5142 | default: |
5143 | abort (); | |
252b5132 RH |
5144 | case QUAD: |
5145 | case SQUAD: | |
5146 | size = QUAD_SIZE; | |
5147 | break; | |
5148 | case LONG: | |
5149 | size = LONG_SIZE; | |
5150 | break; | |
5151 | case SHORT: | |
5152 | size = SHORT_SIZE; | |
5153 | break; | |
5154 | case BYTE: | |
5155 | size = BYTE_SIZE; | |
5156 | break; | |
5157 | } | |
e5caa5e0 AM |
5158 | if (size < TO_SIZE ((unsigned) 1)) |
5159 | size = TO_SIZE ((unsigned) 1); | |
5160 | dot += TO_ADDR (size); | |
aa4c3319 AM |
5161 | output_section_statement->bfd_section->size |
5162 | = TO_SIZE (dot - output_section_statement->bfd_section->vma); | |
5163 | ||
252b5132 RH |
5164 | } |
5165 | break; | |
5166 | ||
5167 | case lang_reloc_statement_enum: | |
5168 | { | |
5169 | int size; | |
5170 | ||
7fabd029 | 5171 | s->reloc_statement.output_offset = |
252b5132 RH |
5172 | dot - output_section_statement->bfd_section->vma; |
5173 | s->reloc_statement.output_section = | |
5174 | output_section_statement->bfd_section; | |
5175 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
e5caa5e0 | 5176 | dot += TO_ADDR (size); |
aa4c3319 AM |
5177 | output_section_statement->bfd_section->size |
5178 | = TO_SIZE (dot - output_section_statement->bfd_section->vma); | |
252b5132 RH |
5179 | } |
5180 | break; | |
5f992e62 | 5181 | |
252b5132 | 5182 | case lang_wild_statement_enum: |
e535e147 | 5183 | dot = lang_size_sections_1 (&s->wild_statement.children.head, |
2d20f7bf | 5184 | output_section_statement, |
cf888e70 | 5185 | fill, dot, relax, check_regions); |
252b5132 RH |
5186 | break; |
5187 | ||
5188 | case lang_object_symbols_statement_enum: | |
5189 | link_info.create_object_symbols_section = | |
5190 | output_section_statement->bfd_section; | |
5191 | break; | |
e9ee469a | 5192 | |
252b5132 RH |
5193 | case lang_output_statement_enum: |
5194 | case lang_target_statement_enum: | |
5195 | break; | |
e9ee469a | 5196 | |
252b5132 RH |
5197 | case lang_input_section_enum: |
5198 | { | |
5199 | asection *i; | |
5200 | ||
e535e147 | 5201 | i = s->input_section.section; |
eea6121a | 5202 | if (relax) |
252b5132 | 5203 | { |
b34976b6 | 5204 | bfd_boolean again; |
252b5132 RH |
5205 | |
5206 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) | |
5207 | einfo (_("%P%F: can't relax section: %E\n")); | |
5208 | if (again) | |
b34976b6 | 5209 | *relax = TRUE; |
252b5132 | 5210 | } |
b3327aad | 5211 | dot = size_input_section (prev, output_section_statement, |
ffe54b37 | 5212 | fill, dot); |
252b5132 RH |
5213 | } |
5214 | break; | |
e9ee469a | 5215 | |
252b5132 RH |
5216 | case lang_input_statement_enum: |
5217 | break; | |
e9ee469a | 5218 | |
252b5132 | 5219 | case lang_fill_statement_enum: |
08da4cac KH |
5220 | s->fill_statement.output_section = |
5221 | output_section_statement->bfd_section; | |
252b5132 RH |
5222 | |
5223 | fill = s->fill_statement.fill; | |
5224 | break; | |
e9ee469a | 5225 | |
252b5132 RH |
5226 | case lang_assignment_statement_enum: |
5227 | { | |
5228 | bfd_vma newdot = dot; | |
49c13adb | 5229 | etree_type *tree = s->assignment_statement.exp; |
252b5132 | 5230 | |
b10a8ae0 L |
5231 | expld.dataseg.relro = exp_dataseg_relro_none; |
5232 | ||
49c13adb | 5233 | exp_fold_tree (tree, |
408082ec | 5234 | output_section_statement->bfd_section, |
252b5132 RH |
5235 | &newdot); |
5236 | ||
b10a8ae0 L |
5237 | if (expld.dataseg.relro == exp_dataseg_relro_start) |
5238 | { | |
5239 | if (!expld.dataseg.relro_start_stat) | |
5240 | expld.dataseg.relro_start_stat = s; | |
5241 | else | |
5242 | { | |
5243 | ASSERT (expld.dataseg.relro_start_stat == s); | |
5244 | } | |
5245 | } | |
5246 | else if (expld.dataseg.relro == exp_dataseg_relro_end) | |
5247 | { | |
5248 | if (!expld.dataseg.relro_end_stat) | |
5249 | expld.dataseg.relro_end_stat = s; | |
5250 | else | |
5251 | { | |
5252 | ASSERT (expld.dataseg.relro_end_stat == s); | |
5253 | } | |
5254 | } | |
5255 | expld.dataseg.relro = exp_dataseg_relro_none; | |
5256 | ||
d2667025 | 5257 | /* This symbol may be relative to this section. */ |
a14a5de3 | 5258 | if ((tree->type.node_class == etree_provided |
49c13adb L |
5259 | || tree->type.node_class == etree_assign) |
5260 | && (tree->assign.dst [0] != '.' | |
5261 | || tree->assign.dst [1] != '\0')) | |
6d8bf25d | 5262 | output_section_statement->update_dot = 1; |
49c13adb | 5263 | |
85852e36 | 5264 | if (!output_section_statement->ignored) |
252b5132 | 5265 | { |
252b5132 RH |
5266 | if (output_section_statement == abs_output_section) |
5267 | { | |
5268 | /* If we don't have an output section, then just adjust | |
5269 | the default memory address. */ | |
6feb9908 AM |
5270 | lang_memory_region_lookup (DEFAULT_MEMORY_REGION, |
5271 | FALSE)->current = newdot; | |
252b5132 | 5272 | } |
85852e36 | 5273 | else if (newdot != dot) |
252b5132 | 5274 | { |
b3327aad AM |
5275 | /* Insert a pad after this statement. We can't |
5276 | put the pad before when relaxing, in case the | |
5277 | assignment references dot. */ | |
e5caa5e0 | 5278 | insert_pad (&s->header.next, fill, TO_SIZE (newdot - dot), |
b3327aad AM |
5279 | output_section_statement->bfd_section, dot); |
5280 | ||
5281 | /* Don't neuter the pad below when relaxing. */ | |
5282 | s = s->header.next; | |
9dfc8ab2 | 5283 | |
e9ee469a AM |
5284 | /* If dot is advanced, this implies that the section |
5285 | should have space allocated to it, unless the | |
5286 | user has explicitly stated that the section | |
2e76e85a | 5287 | should not be allocated. */ |
f4eaaf7f AM |
5288 | if (output_section_statement->sectype != noalloc_section |
5289 | && (output_section_statement->sectype != noload_section | |
5290 | || (bfd_get_flavour (link_info.output_bfd) | |
5291 | == bfd_target_elf_flavour))) | |
e9ee469a AM |
5292 | output_section_statement->bfd_section->flags |= SEC_ALLOC; |
5293 | } | |
252b5132 RH |
5294 | dot = newdot; |
5295 | } | |
5296 | } | |
5297 | break; | |
5298 | ||
5299 | case lang_padding_statement_enum: | |
c0c330a7 AM |
5300 | /* If this is the first time lang_size_sections is called, |
5301 | we won't have any padding statements. If this is the | |
5302 | second or later passes when relaxing, we should allow | |
5303 | padding to shrink. If padding is needed on this pass, it | |
5304 | will be added back in. */ | |
5305 | s->padding_statement.size = 0; | |
6e814ff8 AM |
5306 | |
5307 | /* Make sure output_offset is valid. If relaxation shrinks | |
5308 | the section and this pad isn't needed, it's possible to | |
5309 | have output_offset larger than the final size of the | |
5310 | section. bfd_set_section_contents will complain even for | |
5311 | a pad size of zero. */ | |
5312 | s->padding_statement.output_offset | |
5313 | = dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
5314 | break; |
5315 | ||
5316 | case lang_group_statement_enum: | |
e535e147 | 5317 | dot = lang_size_sections_1 (&s->group_statement.children.head, |
2d20f7bf | 5318 | output_section_statement, |
cf888e70 | 5319 | fill, dot, relax, check_regions); |
252b5132 RH |
5320 | break; |
5321 | ||
53d25da6 | 5322 | case lang_insert_statement_enum: |
252b5132 RH |
5323 | break; |
5324 | ||
c0c330a7 | 5325 | /* We can only get here when relaxing is turned on. */ |
252b5132 RH |
5326 | case lang_address_statement_enum: |
5327 | break; | |
53d25da6 AM |
5328 | |
5329 | default: | |
5330 | FAIL (); | |
5331 | break; | |
252b5132 RH |
5332 | } |
5333 | prev = &s->header.next; | |
5334 | } | |
5335 | return dot; | |
5336 | } | |
5337 | ||
591a748a NC |
5338 | /* Callback routine that is used in _bfd_elf_map_sections_to_segments. |
5339 | The BFD library has set NEW_SEGMENT to TRUE iff it thinks that | |
5340 | CURRENT_SECTION and PREVIOUS_SECTION ought to be placed into different | |
5341 | segments. We are allowed an opportunity to override this decision. */ | |
2889e75b NC |
5342 | |
5343 | bfd_boolean | |
5344 | ldlang_override_segment_assignment (struct bfd_link_info * info ATTRIBUTE_UNUSED, | |
5345 | bfd * abfd ATTRIBUTE_UNUSED, | |
5346 | asection * current_section, | |
5347 | asection * previous_section, | |
5348 | bfd_boolean new_segment) | |
5349 | { | |
5350 | lang_output_section_statement_type * cur; | |
5351 | lang_output_section_statement_type * prev; | |
591a748a NC |
5352 | |
5353 | /* The checks below are only necessary when the BFD library has decided | |
5354 | that the two sections ought to be placed into the same segment. */ | |
2889e75b NC |
5355 | if (new_segment) |
5356 | return TRUE; | |
5357 | ||
5358 | /* Paranoia checks. */ | |
5359 | if (current_section == NULL || previous_section == NULL) | |
5360 | return new_segment; | |
5361 | ||
4724d37e RM |
5362 | /* If this flag is set, the target never wants code and non-code |
5363 | sections comingled in the same segment. */ | |
5364 | if (config.separate_code | |
5365 | && ((current_section->flags ^ previous_section->flags) & SEC_CODE)) | |
5366 | return TRUE; | |
5367 | ||
2889e75b NC |
5368 | /* Find the memory regions associated with the two sections. |
5369 | We call lang_output_section_find() here rather than scanning the list | |
5370 | of output sections looking for a matching section pointer because if | |
591a748a | 5371 | we have a large number of sections then a hash lookup is faster. */ |
2889e75b NC |
5372 | cur = lang_output_section_find (current_section->name); |
5373 | prev = lang_output_section_find (previous_section->name); | |
5374 | ||
591a748a | 5375 | /* More paranoia. */ |
2889e75b NC |
5376 | if (cur == NULL || prev == NULL) |
5377 | return new_segment; | |
5378 | ||
5379 | /* If the regions are different then force the sections to live in | |
591a748a NC |
5380 | different segments. See the email thread starting at the following |
5381 | URL for the reasons why this is necessary: | |
2889e75b NC |
5382 | http://sourceware.org/ml/binutils/2007-02/msg00216.html */ |
5383 | return cur->region != prev->region; | |
5384 | } | |
5385 | ||
e9ee469a AM |
5386 | void |
5387 | one_lang_size_sections_pass (bfd_boolean *relax, bfd_boolean check_regions) | |
2d20f7bf | 5388 | { |
420e579c | 5389 | lang_statement_iteration++; |
e535e147 AM |
5390 | lang_size_sections_1 (&statement_list.head, abs_output_section, |
5391 | 0, 0, relax, check_regions); | |
e9ee469a | 5392 | } |
420e579c | 5393 | |
e9ee469a AM |
5394 | void |
5395 | lang_size_sections (bfd_boolean *relax, bfd_boolean check_regions) | |
5396 | { | |
5397 | expld.phase = lang_allocating_phase_enum; | |
5398 | expld.dataseg.phase = exp_dataseg_none; | |
5399 | ||
5400 | one_lang_size_sections_pass (relax, check_regions); | |
5401 | if (expld.dataseg.phase == exp_dataseg_end_seen | |
5402 | && link_info.relro && expld.dataseg.relro_end) | |
8c37241b JJ |
5403 | { |
5404 | /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_RELRO_END pair was seen, try | |
eec2f3ed AM |
5405 | to put expld.dataseg.relro_end on a (common) page boundary. */ |
5406 | bfd_vma min_base, relro_end, maxpage; | |
8c37241b | 5407 | |
e9ee469a | 5408 | expld.dataseg.phase = exp_dataseg_relro_adjust; |
e9ee469a | 5409 | maxpage = expld.dataseg.maxpagesize; |
2b60860a JK |
5410 | /* MIN_BASE is the absolute minimum address we are allowed to start the |
5411 | read-write segment (byte before will be mapped read-only). */ | |
5412 | min_base = (expld.dataseg.min_base + maxpage - 1) & ~(maxpage - 1); | |
e9ee469a AM |
5413 | expld.dataseg.base += (-expld.dataseg.relro_end |
5414 | & (expld.dataseg.pagesize - 1)); | |
a4f5ad88 | 5415 | /* Compute the expected PT_GNU_RELRO segment end. */ |
967928e9 AM |
5416 | relro_end = ((expld.dataseg.relro_end + expld.dataseg.pagesize - 1) |
5417 | & ~(expld.dataseg.pagesize - 1)); | |
2b60860a | 5418 | if (min_base + maxpage < expld.dataseg.base) |
e3070fef | 5419 | { |
e9ee469a | 5420 | expld.dataseg.base -= maxpage; |
e3070fef JJ |
5421 | relro_end -= maxpage; |
5422 | } | |
f86a8756 | 5423 | lang_reset_memory_regions (); |
e9ee469a AM |
5424 | one_lang_size_sections_pass (relax, check_regions); |
5425 | if (expld.dataseg.relro_end > relro_end) | |
a4f5ad88 JJ |
5426 | { |
5427 | /* The alignment of sections between DATA_SEGMENT_ALIGN | |
eec2f3ed AM |
5428 | and DATA_SEGMENT_RELRO_END can cause excessive padding to |
5429 | be inserted at DATA_SEGMENT_RELRO_END. Try to start a | |
5430 | bit lower so that the section alignments will fit in. */ | |
a4f5ad88 JJ |
5431 | asection *sec; |
5432 | unsigned int max_alignment_power = 0; | |
5433 | ||
5434 | /* Find maximum alignment power of sections between | |
5435 | DATA_SEGMENT_ALIGN and DATA_SEGMENT_RELRO_END. */ | |
f13a99db | 5436 | for (sec = link_info.output_bfd->sections; sec; sec = sec->next) |
e9ee469a AM |
5437 | if (sec->vma >= expld.dataseg.base |
5438 | && sec->vma < expld.dataseg.relro_end | |
a4f5ad88 JJ |
5439 | && sec->alignment_power > max_alignment_power) |
5440 | max_alignment_power = sec->alignment_power; | |
5441 | ||
e9ee469a | 5442 | if (((bfd_vma) 1 << max_alignment_power) < expld.dataseg.pagesize) |
a4f5ad88 | 5443 | { |
eec2f3ed AM |
5444 | /* Aligning the adjusted base guarantees the padding |
5445 | between sections won't change. This is better than | |
5446 | simply subtracting 1 << max_alignment_power which is | |
5447 | what we used to do here. */ | |
43a8475c | 5448 | expld.dataseg.base &= ~((1 << max_alignment_power) - 1); |
f86a8756 | 5449 | lang_reset_memory_regions (); |
e9ee469a | 5450 | one_lang_size_sections_pass (relax, check_regions); |
a4f5ad88 JJ |
5451 | } |
5452 | } | |
e9ee469a AM |
5453 | link_info.relro_start = expld.dataseg.base; |
5454 | link_info.relro_end = expld.dataseg.relro_end; | |
8c37241b | 5455 | } |
e9ee469a | 5456 | else if (expld.dataseg.phase == exp_dataseg_end_seen) |
2d20f7bf JJ |
5457 | { |
5458 | /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_END pair was seen, check whether | |
5459 | a page could be saved in the data segment. */ | |
5460 | bfd_vma first, last; | |
5461 | ||
e9ee469a AM |
5462 | first = -expld.dataseg.base & (expld.dataseg.pagesize - 1); |
5463 | last = expld.dataseg.end & (expld.dataseg.pagesize - 1); | |
2d20f7bf | 5464 | if (first && last |
e9ee469a AM |
5465 | && ((expld.dataseg.base & ~(expld.dataseg.pagesize - 1)) |
5466 | != (expld.dataseg.end & ~(expld.dataseg.pagesize - 1))) | |
5467 | && first + last <= expld.dataseg.pagesize) | |
2d20f7bf | 5468 | { |
e9ee469a | 5469 | expld.dataseg.phase = exp_dataseg_adjust; |
f86a8756 | 5470 | lang_reset_memory_regions (); |
e9ee469a | 5471 | one_lang_size_sections_pass (relax, check_regions); |
2d20f7bf | 5472 | } |
ea7c2e6c AM |
5473 | else |
5474 | expld.dataseg.phase = exp_dataseg_done; | |
2d20f7bf | 5475 | } |
ea7c2e6c AM |
5476 | else |
5477 | expld.dataseg.phase = exp_dataseg_done; | |
2d20f7bf JJ |
5478 | } |
5479 | ||
d2667025 AM |
5480 | static lang_output_section_statement_type *current_section; |
5481 | static lang_assignment_statement_type *current_assign; | |
5482 | static bfd_boolean prefer_next_section; | |
5483 | ||
420e579c HPN |
5484 | /* Worker function for lang_do_assignments. Recursiveness goes here. */ |
5485 | ||
5486 | static bfd_vma | |
66e28d60 AM |
5487 | lang_do_assignments_1 (lang_statement_union_type *s, |
5488 | lang_output_section_statement_type *current_os, | |
5489 | fill_type *fill, | |
d2667025 AM |
5490 | bfd_vma dot, |
5491 | bfd_boolean *found_end) | |
252b5132 | 5492 | { |
1579bae1 | 5493 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
5494 | { |
5495 | switch (s->header.type) | |
5496 | { | |
5497 | case lang_constructors_statement_enum: | |
420e579c | 5498 | dot = lang_do_assignments_1 (constructor_list.head, |
d2667025 | 5499 | current_os, fill, dot, found_end); |
252b5132 RH |
5500 | break; |
5501 | ||
5502 | case lang_output_section_statement_enum: | |
5503 | { | |
d1778b88 | 5504 | lang_output_section_statement_type *os; |
252b5132 | 5505 | |
d1778b88 | 5506 | os = &(s->output_section_statement); |
d2667025 | 5507 | os->after_end = *found_end; |
75ff4589 | 5508 | if (os->bfd_section != NULL && !os->ignored) |
252b5132 | 5509 | { |
d2667025 AM |
5510 | if ((os->bfd_section->flags & SEC_ALLOC) != 0) |
5511 | { | |
5512 | current_section = os; | |
5513 | prefer_next_section = FALSE; | |
5514 | } | |
252b5132 | 5515 | dot = os->bfd_section->vma; |
66e28d60 | 5516 | |
d2667025 AM |
5517 | lang_do_assignments_1 (os->children.head, |
5518 | os, os->fill, dot, found_end); | |
66e28d60 | 5519 | |
3737f867 JJ |
5520 | /* .tbss sections effectively have zero size. */ |
5521 | if ((os->bfd_section->flags & SEC_HAS_CONTENTS) != 0 | |
5522 | || (os->bfd_section->flags & SEC_THREAD_LOCAL) == 0 | |
5523 | || link_info.relocatable) | |
cde9e0be | 5524 | dot += TO_ADDR (os->bfd_section->size); |
5590fba9 NC |
5525 | |
5526 | if (os->update_dot_tree != NULL) | |
5527 | exp_fold_tree (os->update_dot_tree, bfd_abs_section_ptr, &dot); | |
252b5132 RH |
5528 | } |
5529 | } | |
5530 | break; | |
e9ee469a | 5531 | |
252b5132 RH |
5532 | case lang_wild_statement_enum: |
5533 | ||
420e579c | 5534 | dot = lang_do_assignments_1 (s->wild_statement.children.head, |
d2667025 | 5535 | current_os, fill, dot, found_end); |
252b5132 RH |
5536 | break; |
5537 | ||
5538 | case lang_object_symbols_statement_enum: | |
5539 | case lang_output_statement_enum: | |
5540 | case lang_target_statement_enum: | |
252b5132 | 5541 | break; |
e9ee469a | 5542 | |
252b5132 | 5543 | case lang_data_statement_enum: |
e9ee469a AM |
5544 | exp_fold_tree (s->data_statement.exp, bfd_abs_section_ptr, &dot); |
5545 | if (expld.result.valid_p) | |
7542af2a AM |
5546 | { |
5547 | s->data_statement.value = expld.result.value; | |
5548 | if (expld.result.section != NULL) | |
5549 | s->data_statement.value += expld.result.section->vma; | |
5550 | } | |
e9ee469a AM |
5551 | else |
5552 | einfo (_("%F%P: invalid data statement\n")); | |
b7a26f91 KH |
5553 | { |
5554 | unsigned int size; | |
08da4cac KH |
5555 | switch (s->data_statement.type) |
5556 | { | |
5557 | default: | |
5558 | abort (); | |
5559 | case QUAD: | |
5560 | case SQUAD: | |
5561 | size = QUAD_SIZE; | |
5562 | break; | |
5563 | case LONG: | |
5564 | size = LONG_SIZE; | |
5565 | break; | |
5566 | case SHORT: | |
5567 | size = SHORT_SIZE; | |
5568 | break; | |
5569 | case BYTE: | |
5570 | size = BYTE_SIZE; | |
5571 | break; | |
5572 | } | |
e5caa5e0 AM |
5573 | if (size < TO_SIZE ((unsigned) 1)) |
5574 | size = TO_SIZE ((unsigned) 1); | |
5575 | dot += TO_ADDR (size); | |
08da4cac | 5576 | } |
252b5132 RH |
5577 | break; |
5578 | ||
5579 | case lang_reloc_statement_enum: | |
e9ee469a AM |
5580 | exp_fold_tree (s->reloc_statement.addend_exp, |
5581 | bfd_abs_section_ptr, &dot); | |
5582 | if (expld.result.valid_p) | |
5583 | s->reloc_statement.addend_value = expld.result.value; | |
5584 | else | |
5585 | einfo (_("%F%P: invalid reloc statement\n")); | |
e5caa5e0 | 5586 | dot += TO_ADDR (bfd_get_reloc_size (s->reloc_statement.howto)); |
252b5132 RH |
5587 | break; |
5588 | ||
5589 | case lang_input_section_enum: | |
5590 | { | |
5591 | asection *in = s->input_section.section; | |
5592 | ||
57ceae94 | 5593 | if ((in->flags & SEC_EXCLUDE) == 0) |
eea6121a | 5594 | dot += TO_ADDR (in->size); |
252b5132 RH |
5595 | } |
5596 | break; | |
5597 | ||
5598 | case lang_input_statement_enum: | |
5599 | break; | |
e9ee469a | 5600 | |
252b5132 RH |
5601 | case lang_fill_statement_enum: |
5602 | fill = s->fill_statement.fill; | |
5603 | break; | |
252b5132 | 5604 | |
e9ee469a | 5605 | case lang_assignment_statement_enum: |
d2667025 AM |
5606 | current_assign = &s->assignment_statement; |
5607 | if (current_assign->exp->type.node_class != etree_assert) | |
5608 | { | |
5609 | const char *p = current_assign->exp->assign.dst; | |
5610 | ||
5611 | if (current_os == abs_output_section && p[0] == '.' && p[1] == 0) | |
5612 | prefer_next_section = TRUE; | |
5613 | ||
5614 | while (*p == '_') | |
5615 | ++p; | |
5616 | if (strcmp (p, "end") == 0) | |
5617 | *found_end = TRUE; | |
5618 | } | |
e9ee469a | 5619 | exp_fold_tree (s->assignment_statement.exp, |
66e28d60 | 5620 | current_os->bfd_section, |
e9ee469a | 5621 | &dot); |
252b5132 | 5622 | break; |
e9ee469a | 5623 | |
252b5132 | 5624 | case lang_padding_statement_enum: |
e5caa5e0 | 5625 | dot += TO_ADDR (s->padding_statement.size); |
252b5132 RH |
5626 | break; |
5627 | ||
5628 | case lang_group_statement_enum: | |
420e579c | 5629 | dot = lang_do_assignments_1 (s->group_statement.children.head, |
d2667025 | 5630 | current_os, fill, dot, found_end); |
252b5132 RH |
5631 | break; |
5632 | ||
53d25da6 | 5633 | case lang_insert_statement_enum: |
252b5132 | 5634 | break; |
e9ee469a | 5635 | |
252b5132 RH |
5636 | case lang_address_statement_enum: |
5637 | break; | |
53d25da6 AM |
5638 | |
5639 | default: | |
5640 | FAIL (); | |
5641 | break; | |
252b5132 | 5642 | } |
252b5132 RH |
5643 | } |
5644 | return dot; | |
5645 | } | |
5646 | ||
f2241121 | 5647 | void |
2f65ac72 | 5648 | lang_do_assignments (lang_phase_type phase) |
420e579c | 5649 | { |
d2667025 AM |
5650 | bfd_boolean found_end = FALSE; |
5651 | ||
5652 | current_section = NULL; | |
5653 | prefer_next_section = FALSE; | |
2f65ac72 | 5654 | expld.phase = phase; |
420e579c | 5655 | lang_statement_iteration++; |
d2667025 AM |
5656 | lang_do_assignments_1 (statement_list.head, |
5657 | abs_output_section, NULL, 0, &found_end); | |
5658 | } | |
5659 | ||
5660 | /* For an assignment statement outside of an output section statement, | |
5661 | choose the best of neighbouring output sections to use for values | |
5662 | of "dot". */ | |
5663 | ||
5664 | asection * | |
5665 | section_for_dot (void) | |
5666 | { | |
5667 | asection *s; | |
5668 | ||
5669 | /* Assignments belong to the previous output section, unless there | |
5670 | has been an assignment to "dot", in which case following | |
5671 | assignments belong to the next output section. (The assumption | |
5672 | is that an assignment to "dot" is setting up the address for the | |
5673 | next output section.) Except that past the assignment to "_end" | |
5674 | we always associate with the previous section. This exception is | |
5675 | for targets like SH that define an alloc .stack or other | |
5676 | weirdness after non-alloc sections. */ | |
5677 | if (current_section == NULL || prefer_next_section) | |
5678 | { | |
5679 | lang_statement_union_type *stmt; | |
5680 | lang_output_section_statement_type *os; | |
5681 | ||
5682 | for (stmt = (lang_statement_union_type *) current_assign; | |
5683 | stmt != NULL; | |
5684 | stmt = stmt->header.next) | |
5685 | if (stmt->header.type == lang_output_section_statement_enum) | |
5686 | break; | |
5687 | ||
5688 | os = &stmt->output_section_statement; | |
5689 | while (os != NULL | |
5690 | && !os->after_end | |
5691 | && (os->bfd_section == NULL | |
5692 | || (os->bfd_section->flags & SEC_EXCLUDE) != 0 | |
5693 | || bfd_section_removed_from_list (link_info.output_bfd, | |
5694 | os->bfd_section))) | |
5695 | os = os->next; | |
5696 | ||
5697 | if (current_section == NULL || os == NULL || !os->after_end) | |
5698 | { | |
5699 | if (os != NULL) | |
5700 | s = os->bfd_section; | |
5701 | else | |
5702 | s = link_info.output_bfd->section_last; | |
5703 | while (s != NULL | |
5704 | && ((s->flags & SEC_ALLOC) == 0 | |
5705 | || (s->flags & SEC_THREAD_LOCAL) != 0)) | |
5706 | s = s->prev; | |
5707 | if (s != NULL) | |
5708 | return s; | |
5709 | ||
5710 | return bfd_abs_section_ptr; | |
5711 | } | |
5712 | } | |
5713 | ||
5714 | s = current_section->bfd_section; | |
5715 | ||
5716 | /* The section may have been stripped. */ | |
5717 | while (s != NULL | |
5718 | && ((s->flags & SEC_EXCLUDE) != 0 | |
5719 | || (s->flags & SEC_ALLOC) == 0 | |
5720 | || (s->flags & SEC_THREAD_LOCAL) != 0 | |
5721 | || bfd_section_removed_from_list (link_info.output_bfd, s))) | |
5722 | s = s->prev; | |
5723 | if (s == NULL) | |
5724 | s = link_info.output_bfd->sections; | |
5725 | while (s != NULL | |
5726 | && ((s->flags & SEC_ALLOC) == 0 | |
5727 | || (s->flags & SEC_THREAD_LOCAL) != 0)) | |
5728 | s = s->next; | |
5729 | if (s != NULL) | |
5730 | return s; | |
5731 | ||
5732 | return bfd_abs_section_ptr; | |
420e579c HPN |
5733 | } |
5734 | ||
252b5132 RH |
5735 | /* Fix any .startof. or .sizeof. symbols. When the assemblers see the |
5736 | operator .startof. (section_name), it produces an undefined symbol | |
5737 | .startof.section_name. Similarly, when it sees | |
5738 | .sizeof. (section_name), it produces an undefined symbol | |
5739 | .sizeof.section_name. For all the output sections, we look for | |
5740 | such symbols, and set them to the correct value. */ | |
5741 | ||
5742 | static void | |
1579bae1 | 5743 | lang_set_startof (void) |
252b5132 RH |
5744 | { |
5745 | asection *s; | |
5746 | ||
1049f94e | 5747 | if (link_info.relocatable) |
252b5132 RH |
5748 | return; |
5749 | ||
f13a99db | 5750 | for (s = link_info.output_bfd->sections; s != NULL; s = s->next) |
252b5132 RH |
5751 | { |
5752 | const char *secname; | |
5753 | char *buf; | |
5754 | struct bfd_link_hash_entry *h; | |
5755 | ||
f13a99db | 5756 | secname = bfd_get_section_name (link_info.output_bfd, s); |
1e9cc1c2 | 5757 | buf = (char *) xmalloc (10 + strlen (secname)); |
252b5132 RH |
5758 | |
5759 | sprintf (buf, ".startof.%s", secname); | |
b34976b6 | 5760 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
5761 | if (h != NULL && h->type == bfd_link_hash_undefined) |
5762 | { | |
5763 | h->type = bfd_link_hash_defined; | |
d2667025 AM |
5764 | h->u.def.value = 0; |
5765 | h->u.def.section = s; | |
252b5132 RH |
5766 | } |
5767 | ||
5768 | sprintf (buf, ".sizeof.%s", secname); | |
b34976b6 | 5769 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
5770 | if (h != NULL && h->type == bfd_link_hash_undefined) |
5771 | { | |
5772 | h->type = bfd_link_hash_defined; | |
eea6121a | 5773 | h->u.def.value = TO_ADDR (s->size); |
252b5132 RH |
5774 | h->u.def.section = bfd_abs_section_ptr; |
5775 | } | |
5776 | ||
5777 | free (buf); | |
5778 | } | |
5779 | } | |
5780 | ||
5781 | static void | |
750877ba | 5782 | lang_end (void) |
252b5132 RH |
5783 | { |
5784 | struct bfd_link_hash_entry *h; | |
b34976b6 | 5785 | bfd_boolean warn; |
252b5132 | 5786 | |
ac69cbc6 | 5787 | if ((link_info.relocatable && !link_info.gc_sections) |
4bf27aa9 | 5788 | || (link_info.shared && !link_info.executable)) |
71934f94 | 5789 | warn = entry_from_cmdline; |
252b5132 | 5790 | else |
b34976b6 | 5791 | warn = TRUE; |
252b5132 | 5792 | |
ac69cbc6 TG |
5793 | /* Force the user to specify a root when generating a relocatable with |
5794 | --gc-sections. */ | |
5795 | if (link_info.gc_sections && link_info.relocatable | |
24898b70 | 5796 | && !(entry_from_cmdline || undef_from_cmdline)) |
ac69cbc6 TG |
5797 | einfo (_("%P%F: gc-sections requires either an entry or " |
5798 | "an undefined symbol\n")); | |
5799 | ||
1579bae1 | 5800 | if (entry_symbol.name == NULL) |
252b5132 | 5801 | { |
a359509e ZW |
5802 | /* No entry has been specified. Look for the default entry, but |
5803 | don't warn if we don't find it. */ | |
5804 | entry_symbol.name = entry_symbol_default; | |
b34976b6 | 5805 | warn = FALSE; |
252b5132 RH |
5806 | } |
5807 | ||
e3e942e9 | 5808 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name, |
b34976b6 | 5809 | FALSE, FALSE, TRUE); |
1579bae1 | 5810 | if (h != NULL |
252b5132 RH |
5811 | && (h->type == bfd_link_hash_defined |
5812 | || h->type == bfd_link_hash_defweak) | |
5813 | && h->u.def.section->output_section != NULL) | |
5814 | { | |
5815 | bfd_vma val; | |
5816 | ||
5817 | val = (h->u.def.value | |
f13a99db | 5818 | + bfd_get_section_vma (link_info.output_bfd, |
252b5132 RH |
5819 | h->u.def.section->output_section) |
5820 | + h->u.def.section->output_offset); | |
f13a99db | 5821 | if (! bfd_set_start_address (link_info.output_bfd, val)) |
e3e942e9 | 5822 | einfo (_("%P%F:%s: can't set start address\n"), entry_symbol.name); |
252b5132 RH |
5823 | } |
5824 | else | |
5825 | { | |
5826 | bfd_vma val; | |
5f992e62 | 5827 | const char *send; |
252b5132 RH |
5828 | |
5829 | /* We couldn't find the entry symbol. Try parsing it as a | |
afd7a018 | 5830 | number. */ |
e3e942e9 | 5831 | val = bfd_scan_vma (entry_symbol.name, &send, 0); |
252b5132 RH |
5832 | if (*send == '\0') |
5833 | { | |
f13a99db | 5834 | if (! bfd_set_start_address (link_info.output_bfd, val)) |
252b5132 RH |
5835 | einfo (_("%P%F: can't set start address\n")); |
5836 | } | |
5837 | else | |
5838 | { | |
5839 | asection *ts; | |
5840 | ||
5841 | /* Can't find the entry symbol, and it's not a number. Use | |
5842 | the first address in the text section. */ | |
f13a99db | 5843 | ts = bfd_get_section_by_name (link_info.output_bfd, entry_section); |
1579bae1 | 5844 | if (ts != NULL) |
252b5132 RH |
5845 | { |
5846 | if (warn) | |
6feb9908 AM |
5847 | einfo (_("%P: warning: cannot find entry symbol %s;" |
5848 | " defaulting to %V\n"), | |
e3e942e9 | 5849 | entry_symbol.name, |
f13a99db AM |
5850 | bfd_get_section_vma (link_info.output_bfd, ts)); |
5851 | if (!(bfd_set_start_address | |
5852 | (link_info.output_bfd, | |
5853 | bfd_get_section_vma (link_info.output_bfd, ts)))) | |
252b5132 RH |
5854 | einfo (_("%P%F: can't set start address\n")); |
5855 | } | |
5856 | else | |
5857 | { | |
5858 | if (warn) | |
6feb9908 AM |
5859 | einfo (_("%P: warning: cannot find entry symbol %s;" |
5860 | " not setting start address\n"), | |
e3e942e9 | 5861 | entry_symbol.name); |
252b5132 RH |
5862 | } |
5863 | } | |
5864 | } | |
5865 | } | |
5866 | ||
5867 | /* This is a small function used when we want to ignore errors from | |
5868 | BFD. */ | |
5869 | ||
5870 | static void | |
87f2a346 | 5871 | ignore_bfd_errors (const char *s ATTRIBUTE_UNUSED, ...) |
252b5132 RH |
5872 | { |
5873 | /* Don't do anything. */ | |
5874 | } | |
5875 | ||
5876 | /* Check that the architecture of all the input files is compatible | |
5877 | with the output file. Also call the backend to let it do any | |
5878 | other checking that is needed. */ | |
5879 | ||
5880 | static void | |
1579bae1 | 5881 | lang_check (void) |
252b5132 RH |
5882 | { |
5883 | lang_statement_union_type *file; | |
5884 | bfd *input_bfd; | |
5f992e62 | 5885 | const bfd_arch_info_type *compatible; |
252b5132 | 5886 | |
1579bae1 | 5887 | for (file = file_chain.head; file != NULL; file = file->input_statement.next) |
252b5132 | 5888 | { |
422b6f14 DK |
5889 | #ifdef ENABLE_PLUGINS |
5890 | /* Don't check format of files claimed by plugin. */ | |
66be1055 | 5891 | if (file->input_statement.flags.claimed) |
422b6f14 DK |
5892 | continue; |
5893 | #endif /* ENABLE_PLUGINS */ | |
252b5132 | 5894 | input_bfd = file->input_statement.the_bfd; |
6feb9908 | 5895 | compatible |
f13a99db | 5896 | = bfd_arch_get_compatible (input_bfd, link_info.output_bfd, |
6feb9908 | 5897 | command_line.accept_unknown_input_arch); |
30cba025 AM |
5898 | |
5899 | /* In general it is not possible to perform a relocatable | |
5900 | link between differing object formats when the input | |
5901 | file has relocations, because the relocations in the | |
5902 | input format may not have equivalent representations in | |
5903 | the output format (and besides BFD does not translate | |
5904 | relocs for other link purposes than a final link). */ | |
1049f94e | 5905 | if ((link_info.relocatable || link_info.emitrelocations) |
30cba025 | 5906 | && (compatible == NULL |
f13a99db AM |
5907 | || (bfd_get_flavour (input_bfd) |
5908 | != bfd_get_flavour (link_info.output_bfd))) | |
30cba025 AM |
5909 | && (bfd_get_file_flags (input_bfd) & HAS_RELOC) != 0) |
5910 | { | |
6feb9908 AM |
5911 | einfo (_("%P%F: Relocatable linking with relocations from" |
5912 | " format %s (%B) to format %s (%B) is not supported\n"), | |
30cba025 | 5913 | bfd_get_target (input_bfd), input_bfd, |
f13a99db | 5914 | bfd_get_target (link_info.output_bfd), link_info.output_bfd); |
30cba025 AM |
5915 | /* einfo with %F exits. */ |
5916 | } | |
5917 | ||
252b5132 RH |
5918 | if (compatible == NULL) |
5919 | { | |
5920 | if (command_line.warn_mismatch) | |
9e7750f2 | 5921 | einfo (_("%P%X: %s architecture of input file `%B'" |
6feb9908 | 5922 | " is incompatible with %s output\n"), |
252b5132 | 5923 | bfd_printable_name (input_bfd), input_bfd, |
f13a99db | 5924 | bfd_printable_name (link_info.output_bfd)); |
252b5132 | 5925 | } |
b9247304 | 5926 | else if (bfd_count_sections (input_bfd)) |
252b5132 | 5927 | { |
b9247304 | 5928 | /* If the input bfd has no contents, it shouldn't set the |
b7a26f91 | 5929 | private data of the output bfd. */ |
b9247304 | 5930 | |
252b5132 RH |
5931 | bfd_error_handler_type pfn = NULL; |
5932 | ||
5933 | /* If we aren't supposed to warn about mismatched input | |
afd7a018 AM |
5934 | files, temporarily set the BFD error handler to a |
5935 | function which will do nothing. We still want to call | |
5936 | bfd_merge_private_bfd_data, since it may set up | |
5937 | information which is needed in the output file. */ | |
252b5132 RH |
5938 | if (! command_line.warn_mismatch) |
5939 | pfn = bfd_set_error_handler (ignore_bfd_errors); | |
f13a99db | 5940 | if (! bfd_merge_private_bfd_data (input_bfd, link_info.output_bfd)) |
252b5132 RH |
5941 | { |
5942 | if (command_line.warn_mismatch) | |
6feb9908 AM |
5943 | einfo (_("%P%X: failed to merge target specific data" |
5944 | " of file %B\n"), input_bfd); | |
252b5132 RH |
5945 | } |
5946 | if (! command_line.warn_mismatch) | |
5947 | bfd_set_error_handler (pfn); | |
5948 | } | |
5949 | } | |
5950 | } | |
5951 | ||
5952 | /* Look through all the global common symbols and attach them to the | |
5953 | correct section. The -sort-common command line switch may be used | |
de7dd2bd | 5954 | to roughly sort the entries by alignment. */ |
252b5132 RH |
5955 | |
5956 | static void | |
1579bae1 | 5957 | lang_common (void) |
252b5132 | 5958 | { |
4818e05f AM |
5959 | if (command_line.inhibit_common_definition) |
5960 | return; | |
1049f94e | 5961 | if (link_info.relocatable |
252b5132 RH |
5962 | && ! command_line.force_common_definition) |
5963 | return; | |
5964 | ||
5965 | if (! config.sort_common) | |
1579bae1 | 5966 | bfd_link_hash_traverse (link_info.hash, lang_one_common, NULL); |
252b5132 RH |
5967 | else |
5968 | { | |
de7dd2bd NC |
5969 | unsigned int power; |
5970 | ||
5971 | if (config.sort_common == sort_descending) | |
967928e9 AM |
5972 | { |
5973 | for (power = 4; power > 0; power--) | |
5974 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
5975 | ||
5976 | power = 0; | |
5977 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
5978 | } | |
de7dd2bd | 5979 | else |
967928e9 AM |
5980 | { |
5981 | for (power = 0; power <= 4; power++) | |
5982 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
252b5132 | 5983 | |
967928e9 | 5984 | power = UINT_MAX; |
de7dd2bd NC |
5985 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); |
5986 | } | |
252b5132 RH |
5987 | } |
5988 | } | |
5989 | ||
5990 | /* Place one common symbol in the correct section. */ | |
5991 | ||
b34976b6 | 5992 | static bfd_boolean |
1579bae1 | 5993 | lang_one_common (struct bfd_link_hash_entry *h, void *info) |
252b5132 RH |
5994 | { |
5995 | unsigned int power_of_two; | |
5996 | bfd_vma size; | |
5997 | asection *section; | |
5998 | ||
5999 | if (h->type != bfd_link_hash_common) | |
b34976b6 | 6000 | return TRUE; |
252b5132 RH |
6001 | |
6002 | size = h->u.c.size; | |
6003 | power_of_two = h->u.c.p->alignment_power; | |
6004 | ||
de7dd2bd NC |
6005 | if (config.sort_common == sort_descending |
6006 | && power_of_two < *(unsigned int *) info) | |
6007 | return TRUE; | |
6008 | else if (config.sort_common == sort_ascending | |
967928e9 | 6009 | && power_of_two > *(unsigned int *) info) |
b34976b6 | 6010 | return TRUE; |
252b5132 RH |
6011 | |
6012 | section = h->u.c.p->section; | |
3023e3f6 RS |
6013 | if (!bfd_define_common_symbol (link_info.output_bfd, &link_info, h)) |
6014 | einfo (_("%P%F: Could not define common symbol `%T': %E\n"), | |
6015 | h->root.string); | |
252b5132 RH |
6016 | |
6017 | if (config.map_file != NULL) | |
6018 | { | |
b34976b6 | 6019 | static bfd_boolean header_printed; |
252b5132 RH |
6020 | int len; |
6021 | char *name; | |
6022 | char buf[50]; | |
6023 | ||
6024 | if (! header_printed) | |
6025 | { | |
6026 | minfo (_("\nAllocating common symbols\n")); | |
6027 | minfo (_("Common symbol size file\n\n")); | |
b34976b6 | 6028 | header_printed = TRUE; |
252b5132 RH |
6029 | } |
6030 | ||
f13a99db | 6031 | name = bfd_demangle (link_info.output_bfd, h->root.string, |
73705ac3 | 6032 | DMGL_ANSI | DMGL_PARAMS); |
d7d4c8de AM |
6033 | if (name == NULL) |
6034 | { | |
6035 | minfo ("%s", h->root.string); | |
6036 | len = strlen (h->root.string); | |
6037 | } | |
6038 | else | |
6039 | { | |
6040 | minfo ("%s", name); | |
6041 | len = strlen (name); | |
6042 | free (name); | |
6043 | } | |
252b5132 RH |
6044 | |
6045 | if (len >= 19) | |
6046 | { | |
6047 | print_nl (); | |
6048 | len = 0; | |
6049 | } | |
6050 | while (len < 20) | |
6051 | { | |
6052 | print_space (); | |
6053 | ++len; | |
6054 | } | |
6055 | ||
6056 | minfo ("0x"); | |
6057 | if (size <= 0xffffffff) | |
6058 | sprintf (buf, "%lx", (unsigned long) size); | |
6059 | else | |
6060 | sprintf_vma (buf, size); | |
6061 | minfo ("%s", buf); | |
6062 | len = strlen (buf); | |
6063 | ||
6064 | while (len < 16) | |
6065 | { | |
6066 | print_space (); | |
6067 | ++len; | |
6068 | } | |
6069 | ||
6070 | minfo ("%B\n", section->owner); | |
6071 | } | |
6072 | ||
b34976b6 | 6073 | return TRUE; |
252b5132 RH |
6074 | } |
6075 | ||
08da4cac KH |
6076 | /* Run through the input files and ensure that every input section has |
6077 | somewhere to go. If one is found without a destination then create | |
6078 | an input request and place it into the statement tree. */ | |
252b5132 RH |
6079 | |
6080 | static void | |
1579bae1 | 6081 | lang_place_orphans (void) |
252b5132 | 6082 | { |
e50d8076 | 6083 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
252b5132 RH |
6084 | { |
6085 | asection *s; | |
6086 | ||
1579bae1 | 6087 | for (s = file->the_bfd->sections; s != NULL; s = s->next) |
252b5132 | 6088 | { |
1579bae1 | 6089 | if (s->output_section == NULL) |
252b5132 | 6090 | { |
396a2467 | 6091 | /* This section of the file is not attached, root |
afd7a018 | 6092 | around for a sensible place for it to go. */ |
252b5132 | 6093 | |
66be1055 | 6094 | if (file->flags.just_syms) |
1449d79b AM |
6095 | bfd_link_just_syms (file->the_bfd, s, &link_info); |
6096 | else if ((s->flags & SEC_EXCLUDE) != 0) | |
164e712d | 6097 | s->output_section = bfd_abs_section_ptr; |
252b5132 RH |
6098 | else if (strcmp (s->name, "COMMON") == 0) |
6099 | { | |
6100 | /* This is a lonely common section which must have | |
6101 | come from an archive. We attach to the section | |
6102 | with the wildcard. */ | |
1049f94e | 6103 | if (! link_info.relocatable |
252b5132 RH |
6104 | || command_line.force_common_definition) |
6105 | { | |
6106 | if (default_common_section == NULL) | |
66c103b7 AM |
6107 | default_common_section |
6108 | = lang_output_section_statement_lookup (".bss", 0, | |
6109 | TRUE); | |
39dcfe18 | 6110 | lang_add_section (&default_common_section->children, s, |
b9c361e0 | 6111 | NULL, default_common_section); |
252b5132 RH |
6112 | } |
6113 | } | |
252b5132 RH |
6114 | else |
6115 | { | |
bcacc0f5 | 6116 | const char *name = s->name; |
8a99a385 | 6117 | int constraint = 0; |
252b5132 | 6118 | |
d0bf826b AM |
6119 | if (config.unique_orphan_sections |
6120 | || unique_section_p (s, NULL)) | |
8a99a385 | 6121 | constraint = SPECIAL; |
bcacc0f5 | 6122 | |
8a99a385 | 6123 | if (!ldemul_place_orphan (s, name, constraint)) |
bcacc0f5 AM |
6124 | { |
6125 | lang_output_section_statement_type *os; | |
8a99a385 AM |
6126 | os = lang_output_section_statement_lookup (name, |
6127 | constraint, | |
bcacc0f5 | 6128 | TRUE); |
30920cab AM |
6129 | if (os->addr_tree == NULL |
6130 | && (link_info.relocatable | |
6131 | || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)) | |
6132 | os->addr_tree = exp_intop (0); | |
b9c361e0 | 6133 | lang_add_section (&os->children, s, NULL, os); |
bcacc0f5 | 6134 | } |
252b5132 RH |
6135 | } |
6136 | } | |
6137 | } | |
6138 | } | |
6139 | } | |
6140 | ||
252b5132 | 6141 | void |
1579bae1 | 6142 | lang_set_flags (lang_memory_region_type *ptr, const char *flags, int invert) |
252b5132 | 6143 | { |
aa8804e4 | 6144 | flagword *ptr_flags; |
252b5132 | 6145 | |
aa8804e4 | 6146 | ptr_flags = invert ? &ptr->not_flags : &ptr->flags; |
252b5132 RH |
6147 | while (*flags) |
6148 | { | |
6149 | switch (*flags) | |
6150 | { | |
252b5132 RH |
6151 | case 'A': case 'a': |
6152 | *ptr_flags |= SEC_ALLOC; | |
6153 | break; | |
6154 | ||
6155 | case 'R': case 'r': | |
6156 | *ptr_flags |= SEC_READONLY; | |
6157 | break; | |
6158 | ||
6159 | case 'W': case 'w': | |
6160 | *ptr_flags |= SEC_DATA; | |
6161 | break; | |
6162 | ||
6163 | case 'X': case 'x': | |
6164 | *ptr_flags |= SEC_CODE; | |
6165 | break; | |
6166 | ||
6167 | case 'L': case 'l': | |
6168 | case 'I': case 'i': | |
6169 | *ptr_flags |= SEC_LOAD; | |
6170 | break; | |
6171 | ||
6172 | default: | |
6173 | einfo (_("%P%F: invalid syntax in flags\n")); | |
6174 | break; | |
6175 | } | |
6176 | flags++; | |
6177 | } | |
6178 | } | |
6179 | ||
6180 | /* Call a function on each input file. This function will be called | |
6181 | on an archive, but not on the elements. */ | |
6182 | ||
6183 | void | |
1579bae1 | 6184 | lang_for_each_input_file (void (*func) (lang_input_statement_type *)) |
252b5132 RH |
6185 | { |
6186 | lang_input_statement_type *f; | |
6187 | ||
6188 | for (f = (lang_input_statement_type *) input_file_chain.head; | |
6189 | f != NULL; | |
6190 | f = (lang_input_statement_type *) f->next_real_file) | |
6191 | func (f); | |
6192 | } | |
6193 | ||
6194 | /* Call a function on each file. The function will be called on all | |
6195 | the elements of an archive which are included in the link, but will | |
6196 | not be called on the archive file itself. */ | |
6197 | ||
6198 | void | |
1579bae1 | 6199 | lang_for_each_file (void (*func) (lang_input_statement_type *)) |
252b5132 | 6200 | { |
e50d8076 | 6201 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 RH |
6202 | { |
6203 | func (f); | |
6204 | } | |
6205 | } | |
6206 | ||
252b5132 | 6207 | void |
1579bae1 | 6208 | ldlang_add_file (lang_input_statement_type *entry) |
252b5132 | 6209 | { |
252b5132 RH |
6210 | lang_statement_append (&file_chain, |
6211 | (lang_statement_union_type *) entry, | |
6212 | &entry->next); | |
6213 | ||
6214 | /* The BFD linker needs to have a list of all input BFDs involved in | |
6215 | a link. */ | |
c72f2fb2 | 6216 | ASSERT (entry->the_bfd->link.next == NULL); |
f13a99db | 6217 | ASSERT (entry->the_bfd != link_info.output_bfd); |
a9a4c53e AM |
6218 | |
6219 | *link_info.input_bfds_tail = entry->the_bfd; | |
c72f2fb2 | 6220 | link_info.input_bfds_tail = &entry->the_bfd->link.next; |
1579bae1 | 6221 | entry->the_bfd->usrdata = entry; |
252b5132 RH |
6222 | bfd_set_gp_size (entry->the_bfd, g_switch_value); |
6223 | ||
6224 | /* Look through the sections and check for any which should not be | |
6225 | included in the link. We need to do this now, so that we can | |
6226 | notice when the backend linker tries to report multiple | |
6227 | definition errors for symbols which are in sections we aren't | |
6228 | going to link. FIXME: It might be better to entirely ignore | |
6229 | symbols which are defined in sections which are going to be | |
6230 | discarded. This would require modifying the backend linker for | |
6231 | each backend which might set the SEC_LINK_ONCE flag. If we do | |
6232 | this, we should probably handle SEC_EXCLUDE in the same way. */ | |
6233 | ||
1579bae1 | 6234 | bfd_map_over_sections (entry->the_bfd, section_already_linked, entry); |
252b5132 RH |
6235 | } |
6236 | ||
6237 | void | |
1579bae1 | 6238 | lang_add_output (const char *name, int from_script) |
252b5132 RH |
6239 | { |
6240 | /* Make -o on command line override OUTPUT in script. */ | |
7c519c12 | 6241 | if (!had_output_filename || !from_script) |
252b5132 RH |
6242 | { |
6243 | output_filename = name; | |
b34976b6 | 6244 | had_output_filename = TRUE; |
252b5132 RH |
6245 | } |
6246 | } | |
6247 | ||
252b5132 | 6248 | static int |
1579bae1 | 6249 | topower (int x) |
252b5132 RH |
6250 | { |
6251 | unsigned int i = 1; | |
6252 | int l; | |
6253 | ||
6254 | if (x < 0) | |
6255 | return -1; | |
6256 | ||
5f992e62 | 6257 | for (l = 0; l < 32; l++) |
252b5132 RH |
6258 | { |
6259 | if (i >= (unsigned int) x) | |
6260 | return l; | |
6261 | i <<= 1; | |
6262 | } | |
6263 | ||
6264 | return 0; | |
6265 | } | |
6266 | ||
aea4bd9d | 6267 | lang_output_section_statement_type * |
1579bae1 AM |
6268 | lang_enter_output_section_statement (const char *output_section_statement_name, |
6269 | etree_type *address_exp, | |
6270 | enum section_type sectype, | |
1579bae1 AM |
6271 | etree_type *align, |
6272 | etree_type *subalign, | |
0841712e | 6273 | etree_type *ebase, |
1eec346e NC |
6274 | int constraint, |
6275 | int align_with_input) | |
252b5132 RH |
6276 | { |
6277 | lang_output_section_statement_type *os; | |
6278 | ||
66c103b7 AM |
6279 | os = lang_output_section_statement_lookup (output_section_statement_name, |
6280 | constraint, TRUE); | |
967928e9 | 6281 | current_section = os; |
252b5132 | 6282 | |
1579bae1 | 6283 | if (os->addr_tree == NULL) |
08da4cac KH |
6284 | { |
6285 | os->addr_tree = address_exp; | |
6286 | } | |
252b5132 RH |
6287 | os->sectype = sectype; |
6288 | if (sectype != noload_section) | |
6289 | os->flags = SEC_NO_FLAGS; | |
6290 | else | |
6291 | os->flags = SEC_NEVER_LOAD; | |
e5caa5e0 | 6292 | os->block_value = 1; |
66c103b7 AM |
6293 | |
6294 | /* Make next things chain into subchain of this. */ | |
bde18da4 | 6295 | push_stat_ptr (&os->children); |
252b5132 | 6296 | |
1eec346e NC |
6297 | os->align_lma_with_input = align_with_input == ALIGN_WITH_INPUT; |
6298 | if (os->align_lma_with_input && align != NULL) | |
6299 | einfo (_("%F%P:%S: error: align with input and explicit align specified\n"), NULL); | |
6300 | ||
08da4cac | 6301 | os->subsection_alignment = |
e9ee469a | 6302 | topower (exp_get_value_int (subalign, -1, "subsection alignment")); |
08da4cac | 6303 | os->section_alignment = |
e9ee469a | 6304 | topower (exp_get_value_int (align, -1, "section alignment")); |
252b5132 RH |
6305 | |
6306 | os->load_base = ebase; | |
aea4bd9d | 6307 | return os; |
252b5132 RH |
6308 | } |
6309 | ||
252b5132 | 6310 | void |
1579bae1 | 6311 | lang_final (void) |
252b5132 | 6312 | { |
d3ce72d0 NC |
6313 | lang_output_statement_type *new_stmt; |
6314 | ||
6315 | new_stmt = new_stat (lang_output_statement, stat_ptr); | |
6316 | new_stmt->name = output_filename; | |
252b5132 | 6317 | |
252b5132 RH |
6318 | } |
6319 | ||
08da4cac KH |
6320 | /* Reset the current counters in the regions. */ |
6321 | ||
e3dc8847 | 6322 | void |
1579bae1 | 6323 | lang_reset_memory_regions (void) |
252b5132 RH |
6324 | { |
6325 | lang_memory_region_type *p = lang_memory_region_list; | |
b3327aad | 6326 | asection *o; |
e9ee469a | 6327 | lang_output_section_statement_type *os; |
252b5132 | 6328 | |
1579bae1 | 6329 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
252b5132 | 6330 | { |
252b5132 | 6331 | p->current = p->origin; |
66e28d60 | 6332 | p->last_os = NULL; |
252b5132 | 6333 | } |
b3327aad | 6334 | |
e9ee469a AM |
6335 | for (os = &lang_output_section_statement.head->output_section_statement; |
6336 | os != NULL; | |
6337 | os = os->next) | |
cde9e0be AM |
6338 | { |
6339 | os->processed_vma = FALSE; | |
6340 | os->processed_lma = FALSE; | |
6341 | } | |
e9ee469a | 6342 | |
f13a99db | 6343 | for (o = link_info.output_bfd->sections; o != NULL; o = o->next) |
1a23a9e6 AM |
6344 | { |
6345 | /* Save the last size for possible use by bfd_relax_section. */ | |
6346 | o->rawsize = o->size; | |
6347 | o->size = 0; | |
6348 | } | |
252b5132 RH |
6349 | } |
6350 | ||
164e712d | 6351 | /* Worker for lang_gc_sections_1. */ |
252b5132 RH |
6352 | |
6353 | static void | |
1579bae1 AM |
6354 | gc_section_callback (lang_wild_statement_type *ptr, |
6355 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
6356 | asection *section, | |
b9c361e0 | 6357 | struct flag_info *sflag_info ATTRIBUTE_UNUSED, |
1579bae1 AM |
6358 | lang_input_statement_type *file ATTRIBUTE_UNUSED, |
6359 | void *data ATTRIBUTE_UNUSED) | |
252b5132 | 6360 | { |
164e712d AM |
6361 | /* If the wild pattern was marked KEEP, the member sections |
6362 | should be as well. */ | |
4dec4d4e RH |
6363 | if (ptr->keep_sections) |
6364 | section->flags |= SEC_KEEP; | |
252b5132 RH |
6365 | } |
6366 | ||
252b5132 RH |
6367 | /* Iterate over sections marking them against GC. */ |
6368 | ||
6369 | static void | |
1579bae1 | 6370 | lang_gc_sections_1 (lang_statement_union_type *s) |
252b5132 | 6371 | { |
1579bae1 | 6372 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
6373 | { |
6374 | switch (s->header.type) | |
6375 | { | |
6376 | case lang_wild_statement_enum: | |
164e712d | 6377 | walk_wild (&s->wild_statement, gc_section_callback, NULL); |
abc6ab0a | 6378 | break; |
252b5132 RH |
6379 | case lang_constructors_statement_enum: |
6380 | lang_gc_sections_1 (constructor_list.head); | |
6381 | break; | |
6382 | case lang_output_section_statement_enum: | |
6383 | lang_gc_sections_1 (s->output_section_statement.children.head); | |
6384 | break; | |
6385 | case lang_group_statement_enum: | |
6386 | lang_gc_sections_1 (s->group_statement.children.head); | |
6387 | break; | |
6388 | default: | |
6389 | break; | |
6390 | } | |
6391 | } | |
6392 | } | |
6393 | ||
6394 | static void | |
1579bae1 | 6395 | lang_gc_sections (void) |
252b5132 | 6396 | { |
252b5132 RH |
6397 | /* Keep all sections so marked in the link script. */ |
6398 | ||
6399 | lang_gc_sections_1 (statement_list.head); | |
6400 | ||
9ca57817 AM |
6401 | /* SEC_EXCLUDE is ignored when doing a relocatable link, except in |
6402 | the special case of debug info. (See bfd/stabs.c) | |
6403 | Twiddle the flag here, to simplify later linker code. */ | |
6404 | if (link_info.relocatable) | |
6405 | { | |
6406 | LANG_FOR_EACH_INPUT_STATEMENT (f) | |
6407 | { | |
6408 | asection *sec; | |
9e2278f5 | 6409 | #ifdef ENABLE_PLUGINS |
66be1055 | 6410 | if (f->flags.claimed) |
9e2278f5 AM |
6411 | continue; |
6412 | #endif | |
9ca57817 AM |
6413 | for (sec = f->the_bfd->sections; sec != NULL; sec = sec->next) |
6414 | if ((sec->flags & SEC_DEBUGGING) == 0) | |
6415 | sec->flags &= ~SEC_EXCLUDE; | |
6416 | } | |
6417 | } | |
6418 | ||
57316bff | 6419 | if (link_info.gc_sections) |
f13a99db | 6420 | bfd_gc_sections (link_info.output_bfd, &link_info); |
252b5132 RH |
6421 | } |
6422 | ||
b10a8ae0 L |
6423 | /* Worker for lang_find_relro_sections_1. */ |
6424 | ||
6425 | static void | |
6426 | find_relro_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED, | |
6427 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
6428 | asection *section, | |
b9c361e0 | 6429 | struct flag_info *sflag_info ATTRIBUTE_UNUSED, |
b10a8ae0 L |
6430 | lang_input_statement_type *file ATTRIBUTE_UNUSED, |
6431 | void *data) | |
6432 | { | |
6433 | /* Discarded, excluded and ignored sections effectively have zero | |
6434 | size. */ | |
6435 | if (section->output_section != NULL | |
f13a99db | 6436 | && section->output_section->owner == link_info.output_bfd |
b10a8ae0 L |
6437 | && (section->output_section->flags & SEC_EXCLUDE) == 0 |
6438 | && !IGNORE_SECTION (section) | |
6439 | && section->size != 0) | |
6440 | { | |
6441 | bfd_boolean *has_relro_section = (bfd_boolean *) data; | |
6442 | *has_relro_section = TRUE; | |
6443 | } | |
6444 | } | |
6445 | ||
6446 | /* Iterate over sections for relro sections. */ | |
6447 | ||
6448 | static void | |
6449 | lang_find_relro_sections_1 (lang_statement_union_type *s, | |
6450 | bfd_boolean *has_relro_section) | |
6451 | { | |
6452 | if (*has_relro_section) | |
6453 | return; | |
6454 | ||
6455 | for (; s != NULL; s = s->header.next) | |
6456 | { | |
6457 | if (s == expld.dataseg.relro_end_stat) | |
6458 | break; | |
6459 | ||
6460 | switch (s->header.type) | |
6461 | { | |
6462 | case lang_wild_statement_enum: | |
6463 | walk_wild (&s->wild_statement, | |
6464 | find_relro_section_callback, | |
6465 | has_relro_section); | |
6466 | break; | |
6467 | case lang_constructors_statement_enum: | |
6468 | lang_find_relro_sections_1 (constructor_list.head, | |
6469 | has_relro_section); | |
6470 | break; | |
6471 | case lang_output_section_statement_enum: | |
6472 | lang_find_relro_sections_1 (s->output_section_statement.children.head, | |
6473 | has_relro_section); | |
6474 | break; | |
6475 | case lang_group_statement_enum: | |
6476 | lang_find_relro_sections_1 (s->group_statement.children.head, | |
6477 | has_relro_section); | |
6478 | break; | |
6479 | default: | |
6480 | break; | |
6481 | } | |
6482 | } | |
6483 | } | |
6484 | ||
6485 | static void | |
6486 | lang_find_relro_sections (void) | |
6487 | { | |
6488 | bfd_boolean has_relro_section = FALSE; | |
6489 | ||
6490 | /* Check all sections in the link script. */ | |
6491 | ||
6492 | lang_find_relro_sections_1 (expld.dataseg.relro_start_stat, | |
6493 | &has_relro_section); | |
6494 | ||
6495 | if (!has_relro_section) | |
6496 | link_info.relro = FALSE; | |
6497 | } | |
6498 | ||
fbbc3759 L |
6499 | /* Relax all sections until bfd_relax_section gives up. */ |
6500 | ||
eaeb0a9d AM |
6501 | void |
6502 | lang_relax_sections (bfd_boolean need_layout) | |
fbbc3759 | 6503 | { |
28d5f677 | 6504 | if (RELAXATION_ENABLED) |
fbbc3759 | 6505 | { |
eaeb0a9d AM |
6506 | /* We may need more than one relaxation pass. */ |
6507 | int i = link_info.relax_pass; | |
fbbc3759 | 6508 | |
eaeb0a9d AM |
6509 | /* The backend can use it to determine the current pass. */ |
6510 | link_info.relax_pass = 0; | |
fbbc3759 | 6511 | |
eaeb0a9d AM |
6512 | while (i--) |
6513 | { | |
6514 | /* Keep relaxing until bfd_relax_section gives up. */ | |
6515 | bfd_boolean relax_again; | |
fbbc3759 | 6516 | |
eaeb0a9d AM |
6517 | link_info.relax_trip = -1; |
6518 | do | |
6519 | { | |
6520 | link_info.relax_trip++; | |
6521 | ||
6522 | /* Note: pe-dll.c does something like this also. If you find | |
6523 | you need to change this code, you probably need to change | |
6524 | pe-dll.c also. DJ */ | |
6525 | ||
6526 | /* Do all the assignments with our current guesses as to | |
6527 | section sizes. */ | |
2f65ac72 | 6528 | lang_do_assignments (lang_assigning_phase_enum); |
eaeb0a9d AM |
6529 | |
6530 | /* We must do this after lang_do_assignments, because it uses | |
6531 | size. */ | |
6532 | lang_reset_memory_regions (); | |
6533 | ||
6534 | /* Perform another relax pass - this time we know where the | |
6535 | globals are, so can make a better guess. */ | |
6536 | relax_again = FALSE; | |
6537 | lang_size_sections (&relax_again, FALSE); | |
6538 | } | |
6539 | while (relax_again); | |
6540 | ||
6541 | link_info.relax_pass++; | |
6542 | } | |
6543 | need_layout = TRUE; | |
6544 | } | |
fbbc3759 | 6545 | |
eaeb0a9d AM |
6546 | if (need_layout) |
6547 | { | |
6548 | /* Final extra sizing to report errors. */ | |
2f65ac72 | 6549 | lang_do_assignments (lang_assigning_phase_enum); |
eaeb0a9d AM |
6550 | lang_reset_memory_regions (); |
6551 | lang_size_sections (NULL, TRUE); | |
fbbc3759 | 6552 | } |
fbbc3759 L |
6553 | } |
6554 | ||
8543fde5 DK |
6555 | #ifdef ENABLE_PLUGINS |
6556 | /* Find the insert point for the plugin's replacement files. We | |
6557 | place them after the first claimed real object file, or if the | |
6558 | first claimed object is an archive member, after the last real | |
6559 | object file immediately preceding the archive. In the event | |
6560 | no objects have been claimed at all, we return the first dummy | |
6561 | object file on the list as the insert point; that works, but | |
6562 | the callee must be careful when relinking the file_chain as it | |
6563 | is not actually on that chain, only the statement_list and the | |
6564 | input_file list; in that case, the replacement files must be | |
6565 | inserted at the head of the file_chain. */ | |
6566 | ||
6567 | static lang_input_statement_type * | |
6568 | find_replacements_insert_point (void) | |
6569 | { | |
6570 | lang_input_statement_type *claim1, *lastobject; | |
6571 | lastobject = &input_file_chain.head->input_statement; | |
6572 | for (claim1 = &file_chain.head->input_statement; | |
6573 | claim1 != NULL; | |
6574 | claim1 = &claim1->next->input_statement) | |
6575 | { | |
66be1055 AM |
6576 | if (claim1->flags.claimed) |
6577 | return claim1->flags.claim_archive ? lastobject : claim1; | |
8543fde5 DK |
6578 | /* Update lastobject if this is a real object file. */ |
6579 | if (claim1->the_bfd && (claim1->the_bfd->my_archive == NULL)) | |
6580 | lastobject = claim1; | |
6581 | } | |
6582 | /* No files were claimed by the plugin. Choose the last object | |
6583 | file found on the list (maybe the first, dummy entry) as the | |
6584 | insert point. */ | |
6585 | return lastobject; | |
6586 | } | |
9e2278f5 AM |
6587 | |
6588 | /* Insert SRCLIST into DESTLIST after given element by chaining | |
6589 | on FIELD as the next-pointer. (Counterintuitively does not need | |
6590 | a pointer to the actual after-node itself, just its chain field.) */ | |
6591 | ||
6592 | static void | |
6593 | lang_list_insert_after (lang_statement_list_type *destlist, | |
6594 | lang_statement_list_type *srclist, | |
6595 | lang_statement_union_type **field) | |
6596 | { | |
6597 | *(srclist->tail) = *field; | |
6598 | *field = srclist->head; | |
6599 | if (destlist->tail == field) | |
6600 | destlist->tail = srclist->tail; | |
6601 | } | |
6602 | ||
6603 | /* Detach new nodes added to DESTLIST since the time ORIGLIST | |
6604 | was taken as a copy of it and leave them in ORIGLIST. */ | |
6605 | ||
6606 | static void | |
6607 | lang_list_remove_tail (lang_statement_list_type *destlist, | |
6608 | lang_statement_list_type *origlist) | |
6609 | { | |
6610 | union lang_statement_union **savetail; | |
6611 | /* Check that ORIGLIST really is an earlier state of DESTLIST. */ | |
6612 | ASSERT (origlist->head == destlist->head); | |
6613 | savetail = origlist->tail; | |
6614 | origlist->head = *(savetail); | |
6615 | origlist->tail = destlist->tail; | |
6616 | destlist->tail = savetail; | |
6617 | *savetail = NULL; | |
6618 | } | |
8543fde5 DK |
6619 | #endif /* ENABLE_PLUGINS */ |
6620 | ||
252b5132 | 6621 | void |
1579bae1 | 6622 | lang_process (void) |
252b5132 | 6623 | { |
55255dae | 6624 | /* Finalize dynamic list. */ |
40b36307 L |
6625 | if (link_info.dynamic_list) |
6626 | lang_finalize_version_expr_head (&link_info.dynamic_list->head); | |
55255dae | 6627 | |
252b5132 RH |
6628 | current_target = default_target; |
6629 | ||
08da4cac KH |
6630 | /* Open the output file. */ |
6631 | lang_for_each_statement (ldlang_open_output); | |
e5caa5e0 | 6632 | init_opb (); |
252b5132 RH |
6633 | |
6634 | ldemul_create_output_section_statements (); | |
6635 | ||
08da4cac | 6636 | /* Add to the hash table all undefineds on the command line. */ |
252b5132 RH |
6637 | lang_place_undefineds (); |
6638 | ||
082b7297 L |
6639 | if (!bfd_section_already_linked_table_init ()) |
6640 | einfo (_("%P%F: Failed to create hash table\n")); | |
9503fd87 | 6641 | |
08da4cac | 6642 | /* Create a bfd for each input file. */ |
252b5132 | 6643 | current_target = default_target; |
486329aa | 6644 | open_input_bfds (statement_list.head, OPEN_BFD_NORMAL); |
252b5132 | 6645 | |
5d3236ee | 6646 | #ifdef ENABLE_PLUGINS |
8543fde5 | 6647 | if (plugin_active_plugins_p ()) |
f84854b6 | 6648 | { |
8543fde5 DK |
6649 | lang_statement_list_type added; |
6650 | lang_statement_list_type files, inputfiles; | |
9e2278f5 | 6651 | |
f84854b6 L |
6652 | /* Now all files are read, let the plugin(s) decide if there |
6653 | are any more to be added to the link before we call the | |
8543fde5 DK |
6654 | emulation's after_open hook. We create a private list of |
6655 | input statements for this purpose, which we will eventually | |
6656 | insert into the global statment list after the first claimed | |
6657 | file. */ | |
6658 | added = *stat_ptr; | |
6659 | /* We need to manipulate all three chains in synchrony. */ | |
6660 | files = file_chain; | |
6661 | inputfiles = input_file_chain; | |
f84854b6 L |
6662 | if (plugin_call_all_symbols_read ()) |
6663 | einfo (_("%P%F: %s: plugin reported error after all symbols read\n"), | |
6664 | plugin_error_plugin ()); | |
8543fde5 | 6665 | /* Open any newly added files, updating the file chains. */ |
0c511000 | 6666 | link_info.loading_lto_outputs = TRUE; |
cdaa438c | 6667 | open_input_bfds (*added.tail, OPEN_BFD_NORMAL); |
8543fde5 DK |
6668 | /* Restore the global list pointer now they have all been added. */ |
6669 | lang_list_remove_tail (stat_ptr, &added); | |
6670 | /* And detach the fresh ends of the file lists. */ | |
6671 | lang_list_remove_tail (&file_chain, &files); | |
6672 | lang_list_remove_tail (&input_file_chain, &inputfiles); | |
6673 | /* Were any new files added? */ | |
6674 | if (added.head != NULL) | |
6675 | { | |
6676 | /* If so, we will insert them into the statement list immediately | |
6677 | after the first input file that was claimed by the plugin. */ | |
9e2278f5 | 6678 | plugin_insert = find_replacements_insert_point (); |
8543fde5 DK |
6679 | /* If a plugin adds input files without having claimed any, we |
6680 | don't really have a good idea where to place them. Just putting | |
6681 | them at the start or end of the list is liable to leave them | |
6682 | outside the crtbegin...crtend range. */ | |
9e2278f5 AM |
6683 | ASSERT (plugin_insert != NULL); |
6684 | /* Splice the new statement list into the old one. */ | |
6685 | lang_list_insert_after (stat_ptr, &added, | |
6686 | &plugin_insert->header.next); | |
8543fde5 DK |
6687 | /* Likewise for the file chains. */ |
6688 | lang_list_insert_after (&input_file_chain, &inputfiles, | |
9e2278f5 | 6689 | &plugin_insert->next_real_file); |
8543fde5 DK |
6690 | /* We must be careful when relinking file_chain; we may need to |
6691 | insert the new files at the head of the list if the insert | |
6692 | point chosen is the dummy first input file. */ | |
9e2278f5 AM |
6693 | if (plugin_insert->filename) |
6694 | lang_list_insert_after (&file_chain, &files, &plugin_insert->next); | |
8543fde5 DK |
6695 | else |
6696 | lang_list_insert_after (&file_chain, &files, &file_chain.head); | |
9e2278f5 AM |
6697 | |
6698 | /* Rescan archives in case new undefined symbols have appeared. */ | |
6699 | open_input_bfds (statement_list.head, OPEN_BFD_RESCAN); | |
8543fde5 | 6700 | } |
f84854b6 | 6701 | } |
5d3236ee DK |
6702 | #endif /* ENABLE_PLUGINS */ |
6703 | ||
e3e942e9 AM |
6704 | link_info.gc_sym_list = &entry_symbol; |
6705 | if (entry_symbol.name == NULL) | |
6706 | link_info.gc_sym_list = ldlang_undef_chain_list_head; | |
6707 | ||
252b5132 | 6708 | ldemul_after_open (); |
16e4ecc0 AM |
6709 | if (config.map_file != NULL) |
6710 | lang_print_asneeded (); | |
252b5132 | 6711 | |
082b7297 | 6712 | bfd_section_already_linked_table_free (); |
9503fd87 | 6713 | |
252b5132 RH |
6714 | /* Make sure that we're not mixing architectures. We call this |
6715 | after all the input files have been opened, but before we do any | |
6716 | other processing, so that any operations merge_private_bfd_data | |
6717 | does on the output file will be known during the rest of the | |
6718 | link. */ | |
6719 | lang_check (); | |
6720 | ||
6721 | /* Handle .exports instead of a version script if we're told to do so. */ | |
6722 | if (command_line.version_exports_section) | |
6723 | lang_do_version_exports_section (); | |
6724 | ||
6725 | /* Build all sets based on the information gathered from the input | |
6726 | files. */ | |
6727 | ldctor_build_sets (); | |
6728 | ||
2aa9aad9 NC |
6729 | /* PR 13683: We must rerun the assignments prior to running garbage |
6730 | collection in order to make sure that all symbol aliases are resolved. */ | |
6731 | lang_do_assignments (lang_mark_phase_enum); | |
6732 | expld.phase = lang_first_phase_enum; | |
6733 | ||
252b5132 | 6734 | /* Remove unreferenced sections if asked to. */ |
164e712d | 6735 | lang_gc_sections (); |
252b5132 | 6736 | |
08da4cac | 6737 | /* Size up the common data. */ |
252b5132 RH |
6738 | lang_common (); |
6739 | ||
bcaa7b3e L |
6740 | /* Update wild statements. */ |
6741 | update_wild_statements (statement_list.head); | |
6742 | ||
252b5132 | 6743 | /* Run through the contours of the script and attach input sections |
08da4cac | 6744 | to the correct output sections. */ |
e759c116 | 6745 | lang_statement_iteration++; |
1579bae1 | 6746 | map_input_to_output_sections (statement_list.head, NULL, NULL); |
252b5132 | 6747 | |
53d25da6 AM |
6748 | process_insert_statements (); |
6749 | ||
08da4cac | 6750 | /* Find any sections not attached explicitly and handle them. */ |
252b5132 RH |
6751 | lang_place_orphans (); |
6752 | ||
1049f94e | 6753 | if (! link_info.relocatable) |
862120bd | 6754 | { |
57ceae94 AM |
6755 | asection *found; |
6756 | ||
6757 | /* Merge SEC_MERGE sections. This has to be done after GC of | |
6758 | sections, so that GCed sections are not merged, but before | |
6759 | assigning dynamic symbols, since removing whole input sections | |
6760 | is hard then. */ | |
f13a99db | 6761 | bfd_merge_sections (link_info.output_bfd, &link_info); |
57ceae94 | 6762 | |
862120bd | 6763 | /* Look for a text section and set the readonly attribute in it. */ |
f13a99db | 6764 | found = bfd_get_section_by_name (link_info.output_bfd, ".text"); |
862120bd | 6765 | |
1579bae1 | 6766 | if (found != NULL) |
862120bd AM |
6767 | { |
6768 | if (config.text_read_only) | |
6769 | found->flags |= SEC_READONLY; | |
6770 | else | |
6771 | found->flags &= ~SEC_READONLY; | |
6772 | } | |
6773 | } | |
6774 | ||
6775 | /* Do anything special before sizing sections. This is where ELF | |
6776 | and other back-ends size dynamic sections. */ | |
252b5132 RH |
6777 | ldemul_before_allocation (); |
6778 | ||
6779 | /* We must record the program headers before we try to fix the | |
6780 | section positions, since they will affect SIZEOF_HEADERS. */ | |
6781 | lang_record_phdrs (); | |
6782 | ||
b10a8ae0 L |
6783 | /* Check relro sections. */ |
6784 | if (link_info.relro && ! link_info.relocatable) | |
6785 | lang_find_relro_sections (); | |
6786 | ||
b3327aad | 6787 | /* Size up the sections. */ |
28d5f677 | 6788 | lang_size_sections (NULL, ! RELAXATION_ENABLED); |
b3327aad | 6789 | |
252b5132 | 6790 | /* See if anything special should be done now we know how big |
eaeb0a9d | 6791 | everything is. This is where relaxation is done. */ |
252b5132 RH |
6792 | ldemul_after_allocation (); |
6793 | ||
6794 | /* Fix any .startof. or .sizeof. symbols. */ | |
6795 | lang_set_startof (); | |
6796 | ||
08da4cac KH |
6797 | /* Do all the assignments, now that we know the final resting places |
6798 | of all the symbols. */ | |
2f65ac72 | 6799 | lang_do_assignments (lang_final_phase_enum); |
252b5132 | 6800 | |
8ded5a0f AM |
6801 | ldemul_finish (); |
6802 | ||
252b5132 | 6803 | /* Make sure that the section addresses make sense. */ |
662ef24b | 6804 | if (command_line.check_section_addresses) |
252b5132 | 6805 | lang_check_section_addresses (); |
5f992e62 | 6806 | |
750877ba | 6807 | lang_end (); |
252b5132 RH |
6808 | } |
6809 | ||
6810 | /* EXPORTED TO YACC */ | |
6811 | ||
6812 | void | |
1579bae1 AM |
6813 | lang_add_wild (struct wildcard_spec *filespec, |
6814 | struct wildcard_list *section_list, | |
6815 | bfd_boolean keep_sections) | |
252b5132 | 6816 | { |
b6bf44ba | 6817 | struct wildcard_list *curr, *next; |
d3ce72d0 | 6818 | lang_wild_statement_type *new_stmt; |
b6bf44ba AM |
6819 | |
6820 | /* Reverse the list as the parser puts it back to front. */ | |
6821 | for (curr = section_list, section_list = NULL; | |
6822 | curr != NULL; | |
6823 | section_list = curr, curr = next) | |
6824 | { | |
6825 | if (curr->spec.name != NULL && strcmp (curr->spec.name, "COMMON") == 0) | |
b34976b6 | 6826 | placed_commons = TRUE; |
252b5132 | 6827 | |
b6bf44ba AM |
6828 | next = curr->next; |
6829 | curr->next = section_list; | |
6830 | } | |
6831 | ||
6832 | if (filespec != NULL && filespec->name != NULL) | |
252b5132 | 6833 | { |
b6bf44ba AM |
6834 | if (strcmp (filespec->name, "*") == 0) |
6835 | filespec->name = NULL; | |
6836 | else if (! wildcardp (filespec->name)) | |
b34976b6 | 6837 | lang_has_input_file = TRUE; |
252b5132 | 6838 | } |
b6bf44ba | 6839 | |
d3ce72d0 NC |
6840 | new_stmt = new_stat (lang_wild_statement, stat_ptr); |
6841 | new_stmt->filename = NULL; | |
6842 | new_stmt->filenames_sorted = FALSE; | |
ae17ab41 | 6843 | new_stmt->section_flag_list = NULL; |
b6bf44ba | 6844 | if (filespec != NULL) |
252b5132 | 6845 | { |
d3ce72d0 NC |
6846 | new_stmt->filename = filespec->name; |
6847 | new_stmt->filenames_sorted = filespec->sorted == by_name; | |
ae17ab41 | 6848 | new_stmt->section_flag_list = filespec->section_flag_list; |
252b5132 | 6849 | } |
d3ce72d0 NC |
6850 | new_stmt->section_list = section_list; |
6851 | new_stmt->keep_sections = keep_sections; | |
6852 | lang_list_init (&new_stmt->children); | |
6853 | analyze_walk_wild_section_handler (new_stmt); | |
252b5132 RH |
6854 | } |
6855 | ||
6856 | void | |
ba916c8a MM |
6857 | lang_section_start (const char *name, etree_type *address, |
6858 | const segment_type *segment) | |
252b5132 | 6859 | { |
d1778b88 | 6860 | lang_address_statement_type *ad; |
252b5132 | 6861 | |
d1778b88 | 6862 | ad = new_stat (lang_address_statement, stat_ptr); |
252b5132 RH |
6863 | ad->section_name = name; |
6864 | ad->address = address; | |
ba916c8a | 6865 | ad->segment = segment; |
252b5132 RH |
6866 | } |
6867 | ||
6868 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called | |
6869 | because of a -e argument on the command line, or zero if this is | |
6870 | called by ENTRY in a linker script. Command line arguments take | |
6871 | precedence. */ | |
6872 | ||
6873 | void | |
1579bae1 | 6874 | lang_add_entry (const char *name, bfd_boolean cmdline) |
252b5132 | 6875 | { |
e3e942e9 | 6876 | if (entry_symbol.name == NULL |
252b5132 RH |
6877 | || cmdline |
6878 | || ! entry_from_cmdline) | |
6879 | { | |
e3e942e9 | 6880 | entry_symbol.name = name; |
252b5132 RH |
6881 | entry_from_cmdline = cmdline; |
6882 | } | |
6883 | } | |
6884 | ||
a359509e ZW |
6885 | /* Set the default start symbol to NAME. .em files should use this, |
6886 | not lang_add_entry, to override the use of "start" if neither the | |
6887 | linker script nor the command line specifies an entry point. NAME | |
6888 | must be permanently allocated. */ | |
6889 | void | |
6890 | lang_default_entry (const char *name) | |
6891 | { | |
6892 | entry_symbol_default = name; | |
6893 | } | |
6894 | ||
252b5132 | 6895 | void |
1579bae1 | 6896 | lang_add_target (const char *name) |
252b5132 | 6897 | { |
d3ce72d0 | 6898 | lang_target_statement_type *new_stmt; |
252b5132 | 6899 | |
d3ce72d0 NC |
6900 | new_stmt = new_stat (lang_target_statement, stat_ptr); |
6901 | new_stmt->target = name; | |
252b5132 RH |
6902 | } |
6903 | ||
6904 | void | |
1579bae1 | 6905 | lang_add_map (const char *name) |
252b5132 RH |
6906 | { |
6907 | while (*name) | |
6908 | { | |
6909 | switch (*name) | |
6910 | { | |
08da4cac | 6911 | case 'F': |
b34976b6 | 6912 | map_option_f = TRUE; |
252b5132 RH |
6913 | break; |
6914 | } | |
6915 | name++; | |
6916 | } | |
6917 | } | |
6918 | ||
6919 | void | |
1579bae1 | 6920 | lang_add_fill (fill_type *fill) |
252b5132 | 6921 | { |
d3ce72d0 | 6922 | lang_fill_statement_type *new_stmt; |
252b5132 | 6923 | |
d3ce72d0 NC |
6924 | new_stmt = new_stat (lang_fill_statement, stat_ptr); |
6925 | new_stmt->fill = fill; | |
252b5132 RH |
6926 | } |
6927 | ||
6928 | void | |
1579bae1 | 6929 | lang_add_data (int type, union etree_union *exp) |
252b5132 | 6930 | { |
d3ce72d0 | 6931 | lang_data_statement_type *new_stmt; |
252b5132 | 6932 | |
d3ce72d0 NC |
6933 | new_stmt = new_stat (lang_data_statement, stat_ptr); |
6934 | new_stmt->exp = exp; | |
6935 | new_stmt->type = type; | |
252b5132 RH |
6936 | } |
6937 | ||
6938 | /* Create a new reloc statement. RELOC is the BFD relocation type to | |
6939 | generate. HOWTO is the corresponding howto structure (we could | |
6940 | look this up, but the caller has already done so). SECTION is the | |
6941 | section to generate a reloc against, or NAME is the name of the | |
6942 | symbol to generate a reloc against. Exactly one of SECTION and | |
6943 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
6944 | ||
6945 | void | |
1579bae1 AM |
6946 | lang_add_reloc (bfd_reloc_code_real_type reloc, |
6947 | reloc_howto_type *howto, | |
6948 | asection *section, | |
6949 | const char *name, | |
6950 | union etree_union *addend) | |
252b5132 RH |
6951 | { |
6952 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
5f992e62 | 6953 | |
252b5132 RH |
6954 | p->reloc = reloc; |
6955 | p->howto = howto; | |
6956 | p->section = section; | |
6957 | p->name = name; | |
6958 | p->addend_exp = addend; | |
6959 | ||
6960 | p->addend_value = 0; | |
6961 | p->output_section = NULL; | |
7fabd029 | 6962 | p->output_offset = 0; |
252b5132 RH |
6963 | } |
6964 | ||
6965 | lang_assignment_statement_type * | |
1579bae1 | 6966 | lang_add_assignment (etree_type *exp) |
252b5132 | 6967 | { |
d3ce72d0 | 6968 | lang_assignment_statement_type *new_stmt; |
252b5132 | 6969 | |
d3ce72d0 NC |
6970 | new_stmt = new_stat (lang_assignment_statement, stat_ptr); |
6971 | new_stmt->exp = exp; | |
6972 | return new_stmt; | |
252b5132 RH |
6973 | } |
6974 | ||
6975 | void | |
1579bae1 | 6976 | lang_add_attribute (enum statement_enum attribute) |
252b5132 | 6977 | { |
bd4d42c1 | 6978 | new_statement (attribute, sizeof (lang_statement_header_type), stat_ptr); |
252b5132 RH |
6979 | } |
6980 | ||
6981 | void | |
1579bae1 | 6982 | lang_startup (const char *name) |
252b5132 | 6983 | { |
1e915804 | 6984 | if (first_file->filename != NULL) |
252b5132 | 6985 | { |
4520f868 | 6986 | einfo (_("%P%F: multiple STARTUP files\n")); |
252b5132 RH |
6987 | } |
6988 | first_file->filename = name; | |
6989 | first_file->local_sym_name = name; | |
66be1055 | 6990 | first_file->flags.real = TRUE; |
252b5132 RH |
6991 | } |
6992 | ||
6993 | void | |
1579bae1 | 6994 | lang_float (bfd_boolean maybe) |
252b5132 RH |
6995 | { |
6996 | lang_float_flag = maybe; | |
6997 | } | |
6998 | ||
ee3cc2e2 RS |
6999 | |
7000 | /* Work out the load- and run-time regions from a script statement, and | |
7001 | store them in *LMA_REGION and *REGION respectively. | |
7002 | ||
a747ee4d NC |
7003 | MEMSPEC is the name of the run-time region, or the value of |
7004 | DEFAULT_MEMORY_REGION if the statement didn't specify one. | |
7005 | LMA_MEMSPEC is the name of the load-time region, or null if the | |
7006 | statement didn't specify one.HAVE_LMA_P is TRUE if the statement | |
7007 | had an explicit load address. | |
ee3cc2e2 RS |
7008 | |
7009 | It is an error to specify both a load region and a load address. */ | |
7010 | ||
7011 | static void | |
6bdafbeb NC |
7012 | lang_get_regions (lang_memory_region_type **region, |
7013 | lang_memory_region_type **lma_region, | |
1579bae1 AM |
7014 | const char *memspec, |
7015 | const char *lma_memspec, | |
6bdafbeb NC |
7016 | bfd_boolean have_lma, |
7017 | bfd_boolean have_vma) | |
ee3cc2e2 | 7018 | { |
a747ee4d | 7019 | *lma_region = lang_memory_region_lookup (lma_memspec, FALSE); |
ee3cc2e2 | 7020 | |
6feb9908 AM |
7021 | /* If no runtime region or VMA has been specified, but the load region |
7022 | has been specified, then use the load region for the runtime region | |
7023 | as well. */ | |
6bdafbeb NC |
7024 | if (lma_memspec != NULL |
7025 | && ! have_vma | |
7026 | && strcmp (memspec, DEFAULT_MEMORY_REGION) == 0) | |
ee3cc2e2 RS |
7027 | *region = *lma_region; |
7028 | else | |
a747ee4d | 7029 | *region = lang_memory_region_lookup (memspec, FALSE); |
ee3cc2e2 | 7030 | |
6bdafbeb | 7031 | if (have_lma && lma_memspec != 0) |
dab69f68 AM |
7032 | einfo (_("%X%P:%S: section has both a load address and a load region\n"), |
7033 | NULL); | |
ee3cc2e2 RS |
7034 | } |
7035 | ||
252b5132 | 7036 | void |
6bdafbeb NC |
7037 | lang_leave_output_section_statement (fill_type *fill, const char *memspec, |
7038 | lang_output_section_phdr_list *phdrs, | |
7039 | const char *lma_memspec) | |
252b5132 | 7040 | { |
ee3cc2e2 RS |
7041 | lang_get_regions (¤t_section->region, |
7042 | ¤t_section->lma_region, | |
7043 | memspec, lma_memspec, | |
6bdafbeb NC |
7044 | current_section->load_base != NULL, |
7045 | current_section->addr_tree != NULL); | |
113e6845 | 7046 | |
83e7bd17 | 7047 | /* If this section has no load region or base, but uses the same |
113e6845 NS |
7048 | region as the previous section, then propagate the previous |
7049 | section's load region. */ | |
7050 | ||
83e7bd17 AM |
7051 | if (current_section->lma_region == NULL |
7052 | && current_section->load_base == NULL | |
7053 | && current_section->addr_tree == NULL | |
113e6845 NS |
7054 | && current_section->region == current_section->prev->region) |
7055 | current_section->lma_region = current_section->prev->lma_region; | |
1e0061d2 | 7056 | |
252b5132 | 7057 | current_section->fill = fill; |
252b5132 | 7058 | current_section->phdrs = phdrs; |
bde18da4 | 7059 | pop_stat_ptr (); |
252b5132 RH |
7060 | } |
7061 | ||
252b5132 | 7062 | void |
1579bae1 AM |
7063 | lang_statement_append (lang_statement_list_type *list, |
7064 | lang_statement_union_type *element, | |
7065 | lang_statement_union_type **field) | |
252b5132 RH |
7066 | { |
7067 | *(list->tail) = element; | |
7068 | list->tail = field; | |
7069 | } | |
7070 | ||
7071 | /* Set the output format type. -oformat overrides scripts. */ | |
7072 | ||
7073 | void | |
1579bae1 AM |
7074 | lang_add_output_format (const char *format, |
7075 | const char *big, | |
7076 | const char *little, | |
7077 | int from_script) | |
252b5132 RH |
7078 | { |
7079 | if (output_target == NULL || !from_script) | |
7080 | { | |
7081 | if (command_line.endian == ENDIAN_BIG | |
7082 | && big != NULL) | |
7083 | format = big; | |
7084 | else if (command_line.endian == ENDIAN_LITTLE | |
7085 | && little != NULL) | |
7086 | format = little; | |
7087 | ||
7088 | output_target = format; | |
7089 | } | |
7090 | } | |
7091 | ||
53d25da6 AM |
7092 | void |
7093 | lang_add_insert (const char *where, int is_before) | |
7094 | { | |
d3ce72d0 | 7095 | lang_insert_statement_type *new_stmt; |
53d25da6 | 7096 | |
d3ce72d0 NC |
7097 | new_stmt = new_stat (lang_insert_statement, stat_ptr); |
7098 | new_stmt->where = where; | |
7099 | new_stmt->is_before = is_before; | |
53d25da6 AM |
7100 | saved_script_handle = previous_script_handle; |
7101 | } | |
7102 | ||
252b5132 RH |
7103 | /* Enter a group. This creates a new lang_group_statement, and sets |
7104 | stat_ptr to build new statements within the group. */ | |
7105 | ||
7106 | void | |
1579bae1 | 7107 | lang_enter_group (void) |
252b5132 RH |
7108 | { |
7109 | lang_group_statement_type *g; | |
7110 | ||
7111 | g = new_stat (lang_group_statement, stat_ptr); | |
7112 | lang_list_init (&g->children); | |
bde18da4 | 7113 | push_stat_ptr (&g->children); |
252b5132 RH |
7114 | } |
7115 | ||
7116 | /* Leave a group. This just resets stat_ptr to start writing to the | |
7117 | regular list of statements again. Note that this will not work if | |
7118 | groups can occur inside anything else which can adjust stat_ptr, | |
7119 | but currently they can't. */ | |
7120 | ||
7121 | void | |
1579bae1 | 7122 | lang_leave_group (void) |
252b5132 | 7123 | { |
bde18da4 | 7124 | pop_stat_ptr (); |
252b5132 RH |
7125 | } |
7126 | ||
7127 | /* Add a new program header. This is called for each entry in a PHDRS | |
7128 | command in a linker script. */ | |
7129 | ||
7130 | void | |
1579bae1 AM |
7131 | lang_new_phdr (const char *name, |
7132 | etree_type *type, | |
7133 | bfd_boolean filehdr, | |
7134 | bfd_boolean phdrs, | |
7135 | etree_type *at, | |
7136 | etree_type *flags) | |
252b5132 RH |
7137 | { |
7138 | struct lang_phdr *n, **pp; | |
5c1a3f0f | 7139 | bfd_boolean hdrs; |
252b5132 | 7140 | |
1e9cc1c2 | 7141 | n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr)); |
252b5132 RH |
7142 | n->next = NULL; |
7143 | n->name = name; | |
e9ee469a | 7144 | n->type = exp_get_value_int (type, 0, "program header type"); |
252b5132 RH |
7145 | n->filehdr = filehdr; |
7146 | n->phdrs = phdrs; | |
7147 | n->at = at; | |
7148 | n->flags = flags; | |
1e0061d2 | 7149 | |
5c1a3f0f | 7150 | hdrs = n->type == 1 && (phdrs || filehdr); |
252b5132 RH |
7151 | |
7152 | for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next) | |
4100cea3 AM |
7153 | if (hdrs |
7154 | && (*pp)->type == 1 | |
7155 | && !((*pp)->filehdr || (*pp)->phdrs)) | |
5c1a3f0f | 7156 | { |
dab69f68 AM |
7157 | einfo (_("%X%P:%S: PHDRS and FILEHDR are not supported" |
7158 | " when prior PT_LOAD headers lack them\n"), NULL); | |
5c1a3f0f NS |
7159 | hdrs = FALSE; |
7160 | } | |
7161 | ||
252b5132 RH |
7162 | *pp = n; |
7163 | } | |
7164 | ||
7165 | /* Record the program header information in the output BFD. FIXME: We | |
7166 | should not be calling an ELF specific function here. */ | |
7167 | ||
7168 | static void | |
1579bae1 | 7169 | lang_record_phdrs (void) |
252b5132 RH |
7170 | { |
7171 | unsigned int alc; | |
7172 | asection **secs; | |
6bdafbeb | 7173 | lang_output_section_phdr_list *last; |
252b5132 | 7174 | struct lang_phdr *l; |
afd7a018 | 7175 | lang_output_section_statement_type *os; |
252b5132 RH |
7176 | |
7177 | alc = 10; | |
1e9cc1c2 | 7178 | secs = (asection **) xmalloc (alc * sizeof (asection *)); |
252b5132 | 7179 | last = NULL; |
591a748a | 7180 | |
252b5132 RH |
7181 | for (l = lang_phdr_list; l != NULL; l = l->next) |
7182 | { | |
7183 | unsigned int c; | |
7184 | flagword flags; | |
7185 | bfd_vma at; | |
7186 | ||
7187 | c = 0; | |
afd7a018 AM |
7188 | for (os = &lang_output_section_statement.head->output_section_statement; |
7189 | os != NULL; | |
7190 | os = os->next) | |
252b5132 | 7191 | { |
6bdafbeb | 7192 | lang_output_section_phdr_list *pl; |
252b5132 | 7193 | |
66c103b7 | 7194 | if (os->constraint < 0) |
0841712e | 7195 | continue; |
252b5132 RH |
7196 | |
7197 | pl = os->phdrs; | |
7198 | if (pl != NULL) | |
7199 | last = pl; | |
7200 | else | |
7201 | { | |
7202 | if (os->sectype == noload_section | |
7203 | || os->bfd_section == NULL | |
7204 | || (os->bfd_section->flags & SEC_ALLOC) == 0) | |
7205 | continue; | |
591a748a | 7206 | |
7512c397 AM |
7207 | /* Don't add orphans to PT_INTERP header. */ |
7208 | if (l->type == 3) | |
7209 | continue; | |
7210 | ||
e9442572 | 7211 | if (last == NULL) |
591a748a NC |
7212 | { |
7213 | lang_output_section_statement_type * tmp_os; | |
7214 | ||
7215 | /* If we have not run across a section with a program | |
7216 | header assigned to it yet, then scan forwards to find | |
7217 | one. This prevents inconsistencies in the linker's | |
7218 | behaviour when a script has specified just a single | |
7219 | header and there are sections in that script which are | |
7220 | not assigned to it, and which occur before the first | |
7221 | use of that header. See here for more details: | |
7222 | http://sourceware.org/ml/binutils/2007-02/msg00291.html */ | |
7223 | for (tmp_os = os; tmp_os; tmp_os = tmp_os->next) | |
7224 | if (tmp_os->phdrs) | |
e9442572 AM |
7225 | { |
7226 | last = tmp_os->phdrs; | |
7227 | break; | |
7228 | } | |
7229 | if (last == NULL) | |
7230 | einfo (_("%F%P: no sections assigned to phdrs\n")); | |
591a748a | 7231 | } |
e9442572 | 7232 | pl = last; |
252b5132 RH |
7233 | } |
7234 | ||
7235 | if (os->bfd_section == NULL) | |
7236 | continue; | |
7237 | ||
7238 | for (; pl != NULL; pl = pl->next) | |
7239 | { | |
7240 | if (strcmp (pl->name, l->name) == 0) | |
7241 | { | |
7242 | if (c >= alc) | |
7243 | { | |
7244 | alc *= 2; | |
1e9cc1c2 | 7245 | secs = (asection **) xrealloc (secs, |
4724d37e | 7246 | alc * sizeof (asection *)); |
252b5132 RH |
7247 | } |
7248 | secs[c] = os->bfd_section; | |
7249 | ++c; | |
b34976b6 | 7250 | pl->used = TRUE; |
252b5132 RH |
7251 | } |
7252 | } | |
7253 | } | |
7254 | ||
7255 | if (l->flags == NULL) | |
7256 | flags = 0; | |
7257 | else | |
e9ee469a | 7258 | flags = exp_get_vma (l->flags, 0, "phdr flags"); |
252b5132 RH |
7259 | |
7260 | if (l->at == NULL) | |
7261 | at = 0; | |
7262 | else | |
e9ee469a | 7263 | at = exp_get_vma (l->at, 0, "phdr load address"); |
252b5132 | 7264 | |
f13a99db | 7265 | if (! bfd_record_phdr (link_info.output_bfd, l->type, |
d1778b88 | 7266 | l->flags != NULL, flags, l->at != NULL, |
252b5132 RH |
7267 | at, l->filehdr, l->phdrs, c, secs)) |
7268 | einfo (_("%F%P: bfd_record_phdr failed: %E\n")); | |
7269 | } | |
7270 | ||
7271 | free (secs); | |
7272 | ||
7273 | /* Make sure all the phdr assignments succeeded. */ | |
afd7a018 AM |
7274 | for (os = &lang_output_section_statement.head->output_section_statement; |
7275 | os != NULL; | |
7276 | os = os->next) | |
252b5132 | 7277 | { |
6bdafbeb | 7278 | lang_output_section_phdr_list *pl; |
252b5132 | 7279 | |
66c103b7 | 7280 | if (os->constraint < 0 |
afd7a018 | 7281 | || os->bfd_section == NULL) |
252b5132 RH |
7282 | continue; |
7283 | ||
afd7a018 | 7284 | for (pl = os->phdrs; |
252b5132 RH |
7285 | pl != NULL; |
7286 | pl = pl->next) | |
7287 | if (! pl->used && strcmp (pl->name, "NONE") != 0) | |
7288 | einfo (_("%X%P: section `%s' assigned to non-existent phdr `%s'\n"), | |
afd7a018 | 7289 | os->name, pl->name); |
252b5132 RH |
7290 | } |
7291 | } | |
7292 | ||
7293 | /* Record a list of sections which may not be cross referenced. */ | |
7294 | ||
7295 | void | |
6bdafbeb | 7296 | lang_add_nocrossref (lang_nocrossref_type *l) |
252b5132 RH |
7297 | { |
7298 | struct lang_nocrossrefs *n; | |
7299 | ||
1e9cc1c2 | 7300 | n = (struct lang_nocrossrefs *) xmalloc (sizeof *n); |
252b5132 RH |
7301 | n->next = nocrossref_list; |
7302 | n->list = l; | |
7303 | nocrossref_list = n; | |
7304 | ||
7305 | /* Set notice_all so that we get informed about all symbols. */ | |
b34976b6 | 7306 | link_info.notice_all = TRUE; |
252b5132 RH |
7307 | } |
7308 | \f | |
7309 | /* Overlay handling. We handle overlays with some static variables. */ | |
7310 | ||
7311 | /* The overlay virtual address. */ | |
7312 | static etree_type *overlay_vma; | |
7e7d5768 AM |
7313 | /* And subsection alignment. */ |
7314 | static etree_type *overlay_subalign; | |
252b5132 | 7315 | |
252b5132 RH |
7316 | /* An expression for the maximum section size seen so far. */ |
7317 | static etree_type *overlay_max; | |
7318 | ||
7319 | /* A list of all the sections in this overlay. */ | |
7320 | ||
89cdebba | 7321 | struct overlay_list { |
252b5132 RH |
7322 | struct overlay_list *next; |
7323 | lang_output_section_statement_type *os; | |
7324 | }; | |
7325 | ||
7326 | static struct overlay_list *overlay_list; | |
7327 | ||
7328 | /* Start handling an overlay. */ | |
7329 | ||
7330 | void | |
7e7d5768 | 7331 | lang_enter_overlay (etree_type *vma_expr, etree_type *subalign) |
252b5132 RH |
7332 | { |
7333 | /* The grammar should prevent nested overlays from occurring. */ | |
7e7d5768 AM |
7334 | ASSERT (overlay_vma == NULL |
7335 | && overlay_subalign == NULL | |
7336 | && overlay_max == NULL); | |
252b5132 RH |
7337 | |
7338 | overlay_vma = vma_expr; | |
7e7d5768 | 7339 | overlay_subalign = subalign; |
252b5132 RH |
7340 | } |
7341 | ||
7342 | /* Start a section in an overlay. We handle this by calling | |
9f88b410 RS |
7343 | lang_enter_output_section_statement with the correct VMA. |
7344 | lang_leave_overlay sets up the LMA and memory regions. */ | |
252b5132 RH |
7345 | |
7346 | void | |
1579bae1 | 7347 | lang_enter_overlay_section (const char *name) |
252b5132 RH |
7348 | { |
7349 | struct overlay_list *n; | |
7350 | etree_type *size; | |
7351 | ||
152d792f | 7352 | lang_enter_output_section_statement (name, overlay_vma, overlay_section, |
1eec346e | 7353 | 0, overlay_subalign, 0, 0, 0); |
252b5132 | 7354 | |
9f88b410 | 7355 | /* If this is the first section, then base the VMA of future |
252b5132 RH |
7356 | sections on this one. This will work correctly even if `.' is |
7357 | used in the addresses. */ | |
7358 | if (overlay_list == NULL) | |
9f88b410 | 7359 | overlay_vma = exp_nameop (ADDR, name); |
252b5132 RH |
7360 | |
7361 | /* Remember the section. */ | |
1e9cc1c2 | 7362 | n = (struct overlay_list *) xmalloc (sizeof *n); |
252b5132 RH |
7363 | n->os = current_section; |
7364 | n->next = overlay_list; | |
7365 | overlay_list = n; | |
7366 | ||
7367 | size = exp_nameop (SIZEOF, name); | |
7368 | ||
252b5132 RH |
7369 | /* Arrange to work out the maximum section end address. */ |
7370 | if (overlay_max == NULL) | |
7371 | overlay_max = size; | |
7372 | else | |
7373 | overlay_max = exp_binop (MAX_K, overlay_max, size); | |
7374 | } | |
7375 | ||
7376 | /* Finish a section in an overlay. There isn't any special to do | |
7377 | here. */ | |
7378 | ||
7379 | void | |
1579bae1 | 7380 | lang_leave_overlay_section (fill_type *fill, |
6bdafbeb | 7381 | lang_output_section_phdr_list *phdrs) |
252b5132 RH |
7382 | { |
7383 | const char *name; | |
7384 | char *clean, *s2; | |
7385 | const char *s1; | |
7386 | char *buf; | |
7387 | ||
7388 | name = current_section->name; | |
7389 | ||
a747ee4d NC |
7390 | /* For now, assume that DEFAULT_MEMORY_REGION is the run-time memory |
7391 | region and that no load-time region has been specified. It doesn't | |
7392 | really matter what we say here, since lang_leave_overlay will | |
7393 | override it. */ | |
7394 | lang_leave_output_section_statement (fill, DEFAULT_MEMORY_REGION, phdrs, 0); | |
252b5132 RH |
7395 | |
7396 | /* Define the magic symbols. */ | |
7397 | ||
1e9cc1c2 | 7398 | clean = (char *) xmalloc (strlen (name) + 1); |
252b5132 RH |
7399 | s2 = clean; |
7400 | for (s1 = name; *s1 != '\0'; s1++) | |
3882b010 | 7401 | if (ISALNUM (*s1) || *s1 == '_') |
252b5132 RH |
7402 | *s2++ = *s1; |
7403 | *s2 = '\0'; | |
7404 | ||
1e9cc1c2 | 7405 | buf = (char *) xmalloc (strlen (clean) + sizeof "__load_start_"); |
252b5132 | 7406 | sprintf (buf, "__load_start_%s", clean); |
34711ca3 AM |
7407 | lang_add_assignment (exp_provide (buf, |
7408 | exp_nameop (LOADADDR, name), | |
7409 | FALSE)); | |
252b5132 | 7410 | |
1e9cc1c2 | 7411 | buf = (char *) xmalloc (strlen (clean) + sizeof "__load_stop_"); |
252b5132 | 7412 | sprintf (buf, "__load_stop_%s", clean); |
34711ca3 AM |
7413 | lang_add_assignment (exp_provide (buf, |
7414 | exp_binop ('+', | |
7415 | exp_nameop (LOADADDR, name), | |
7416 | exp_nameop (SIZEOF, name)), | |
7417 | FALSE)); | |
252b5132 RH |
7418 | |
7419 | free (clean); | |
7420 | } | |
7421 | ||
7422 | /* Finish an overlay. If there are any overlay wide settings, this | |
7423 | looks through all the sections in the overlay and sets them. */ | |
7424 | ||
7425 | void | |
1579bae1 AM |
7426 | lang_leave_overlay (etree_type *lma_expr, |
7427 | int nocrossrefs, | |
7428 | fill_type *fill, | |
7429 | const char *memspec, | |
6bdafbeb | 7430 | lang_output_section_phdr_list *phdrs, |
1579bae1 | 7431 | const char *lma_memspec) |
252b5132 RH |
7432 | { |
7433 | lang_memory_region_type *region; | |
562d3460 | 7434 | lang_memory_region_type *lma_region; |
252b5132 | 7435 | struct overlay_list *l; |
6bdafbeb | 7436 | lang_nocrossref_type *nocrossref; |
252b5132 | 7437 | |
ee3cc2e2 RS |
7438 | lang_get_regions (®ion, &lma_region, |
7439 | memspec, lma_memspec, | |
6bdafbeb | 7440 | lma_expr != NULL, FALSE); |
562d3460 | 7441 | |
252b5132 RH |
7442 | nocrossref = NULL; |
7443 | ||
9f88b410 RS |
7444 | /* After setting the size of the last section, set '.' to end of the |
7445 | overlay region. */ | |
7446 | if (overlay_list != NULL) | |
6d8bf25d AM |
7447 | { |
7448 | overlay_list->os->update_dot = 1; | |
7449 | overlay_list->os->update_dot_tree | |
eb8476a6 | 7450 | = exp_assign (".", exp_binop ('+', overlay_vma, overlay_max), FALSE); |
6d8bf25d | 7451 | } |
9f88b410 | 7452 | |
252b5132 RH |
7453 | l = overlay_list; |
7454 | while (l != NULL) | |
7455 | { | |
7456 | struct overlay_list *next; | |
7457 | ||
1579bae1 | 7458 | if (fill != NULL && l->os->fill == NULL) |
252b5132 | 7459 | l->os->fill = fill; |
1545243b | 7460 | |
9f88b410 RS |
7461 | l->os->region = region; |
7462 | l->os->lma_region = lma_region; | |
7463 | ||
7464 | /* The first section has the load address specified in the | |
7465 | OVERLAY statement. The rest are worked out from that. | |
7466 | The base address is not needed (and should be null) if | |
7467 | an LMA region was specified. */ | |
7468 | if (l->next == 0) | |
152d792f AM |
7469 | { |
7470 | l->os->load_base = lma_expr; | |
7471 | l->os->sectype = normal_section; | |
7472 | } | |
252b5132 RH |
7473 | if (phdrs != NULL && l->os->phdrs == NULL) |
7474 | l->os->phdrs = phdrs; | |
7475 | ||
9f88b410 | 7476 | if (nocrossrefs) |
252b5132 | 7477 | { |
6bdafbeb | 7478 | lang_nocrossref_type *nc; |
252b5132 | 7479 | |
1e9cc1c2 | 7480 | nc = (lang_nocrossref_type *) xmalloc (sizeof *nc); |
252b5132 RH |
7481 | nc->name = l->os->name; |
7482 | nc->next = nocrossref; | |
7483 | nocrossref = nc; | |
7484 | } | |
7485 | ||
7486 | next = l->next; | |
7487 | free (l); | |
7488 | l = next; | |
7489 | } | |
7490 | ||
7491 | if (nocrossref != NULL) | |
7492 | lang_add_nocrossref (nocrossref); | |
7493 | ||
252b5132 | 7494 | overlay_vma = NULL; |
252b5132 RH |
7495 | overlay_list = NULL; |
7496 | overlay_max = NULL; | |
7497 | } | |
7498 | \f | |
7499 | /* Version handling. This is only useful for ELF. */ | |
7500 | ||
108ba305 JJ |
7501 | /* If PREV is NULL, return first version pattern matching particular symbol. |
7502 | If PREV is non-NULL, return first version pattern matching particular | |
7503 | symbol after PREV (previously returned by lang_vers_match). */ | |
252b5132 | 7504 | |
108ba305 JJ |
7505 | static struct bfd_elf_version_expr * |
7506 | lang_vers_match (struct bfd_elf_version_expr_head *head, | |
7507 | struct bfd_elf_version_expr *prev, | |
7508 | const char *sym) | |
252b5132 | 7509 | { |
93252b1c | 7510 | const char *c_sym; |
108ba305 JJ |
7511 | const char *cxx_sym = sym; |
7512 | const char *java_sym = sym; | |
7513 | struct bfd_elf_version_expr *expr = NULL; | |
93252b1c MF |
7514 | enum demangling_styles curr_style; |
7515 | ||
7516 | curr_style = CURRENT_DEMANGLING_STYLE; | |
7517 | cplus_demangle_set_style (no_demangling); | |
7518 | c_sym = bfd_demangle (link_info.output_bfd, sym, DMGL_NO_OPTS); | |
7519 | if (!c_sym) | |
7520 | c_sym = sym; | |
7521 | cplus_demangle_set_style (curr_style); | |
252b5132 | 7522 | |
108ba305 | 7523 | if (head->mask & BFD_ELF_VERSION_CXX_TYPE) |
252b5132 | 7524 | { |
93252b1c MF |
7525 | cxx_sym = bfd_demangle (link_info.output_bfd, sym, |
7526 | DMGL_PARAMS | DMGL_ANSI); | |
108ba305 JJ |
7527 | if (!cxx_sym) |
7528 | cxx_sym = sym; | |
252b5132 | 7529 | } |
df816215 | 7530 | if (head->mask & BFD_ELF_VERSION_JAVA_TYPE) |
252b5132 | 7531 | { |
93252b1c | 7532 | java_sym = bfd_demangle (link_info.output_bfd, sym, DMGL_JAVA); |
108ba305 JJ |
7533 | if (!java_sym) |
7534 | java_sym = sym; | |
252b5132 RH |
7535 | } |
7536 | ||
ae5a3597 | 7537 | if (head->htab && (prev == NULL || prev->literal)) |
252b5132 | 7538 | { |
108ba305 JJ |
7539 | struct bfd_elf_version_expr e; |
7540 | ||
7541 | switch (prev ? prev->mask : 0) | |
7542 | { | |
967928e9 AM |
7543 | case 0: |
7544 | if (head->mask & BFD_ELF_VERSION_C_TYPE) | |
7545 | { | |
93252b1c | 7546 | e.pattern = c_sym; |
1e9cc1c2 | 7547 | expr = (struct bfd_elf_version_expr *) |
4724d37e | 7548 | htab_find ((htab_t) head->htab, &e); |
93252b1c | 7549 | while (expr && strcmp (expr->pattern, c_sym) == 0) |
967928e9 AM |
7550 | if (expr->mask == BFD_ELF_VERSION_C_TYPE) |
7551 | goto out_ret; | |
7552 | else | |
7553 | expr = expr->next; | |
7554 | } | |
7555 | /* Fallthrough */ | |
7556 | case BFD_ELF_VERSION_C_TYPE: | |
7557 | if (head->mask & BFD_ELF_VERSION_CXX_TYPE) | |
7558 | { | |
ae5a3597 | 7559 | e.pattern = cxx_sym; |
1e9cc1c2 | 7560 | expr = (struct bfd_elf_version_expr *) |
4724d37e | 7561 | htab_find ((htab_t) head->htab, &e); |
ae5a3597 | 7562 | while (expr && strcmp (expr->pattern, cxx_sym) == 0) |
967928e9 AM |
7563 | if (expr->mask == BFD_ELF_VERSION_CXX_TYPE) |
7564 | goto out_ret; | |
7565 | else | |
7566 | expr = expr->next; | |
7567 | } | |
7568 | /* Fallthrough */ | |
7569 | case BFD_ELF_VERSION_CXX_TYPE: | |
7570 | if (head->mask & BFD_ELF_VERSION_JAVA_TYPE) | |
7571 | { | |
ae5a3597 | 7572 | e.pattern = java_sym; |
1e9cc1c2 | 7573 | expr = (struct bfd_elf_version_expr *) |
4724d37e | 7574 | htab_find ((htab_t) head->htab, &e); |
ae5a3597 | 7575 | while (expr && strcmp (expr->pattern, java_sym) == 0) |
967928e9 AM |
7576 | if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE) |
7577 | goto out_ret; | |
7578 | else | |
7579 | expr = expr->next; | |
7580 | } | |
7581 | /* Fallthrough */ | |
7582 | default: | |
7583 | break; | |
108ba305 | 7584 | } |
252b5132 | 7585 | } |
108ba305 JJ |
7586 | |
7587 | /* Finally, try the wildcards. */ | |
ae5a3597 | 7588 | if (prev == NULL || prev->literal) |
108ba305 | 7589 | expr = head->remaining; |
252b5132 | 7590 | else |
108ba305 | 7591 | expr = prev->next; |
86043bbb | 7592 | for (; expr; expr = expr->next) |
252b5132 | 7593 | { |
108ba305 JJ |
7594 | const char *s; |
7595 | ||
86043bbb MM |
7596 | if (!expr->pattern) |
7597 | continue; | |
7598 | ||
108ba305 JJ |
7599 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') |
7600 | break; | |
7601 | ||
7602 | if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE) | |
7603 | s = java_sym; | |
7604 | else if (expr->mask == BFD_ELF_VERSION_CXX_TYPE) | |
7605 | s = cxx_sym; | |
7606 | else | |
93252b1c | 7607 | s = c_sym; |
5e35cbc2 | 7608 | if (fnmatch (expr->pattern, s, 0) == 0) |
108ba305 | 7609 | break; |
252b5132 RH |
7610 | } |
7611 | ||
967928e9 | 7612 | out_ret: |
93252b1c MF |
7613 | if (c_sym != sym) |
7614 | free ((char *) c_sym); | |
108ba305 JJ |
7615 | if (cxx_sym != sym) |
7616 | free ((char *) cxx_sym); | |
7617 | if (java_sym != sym) | |
7618 | free ((char *) java_sym); | |
7619 | return expr; | |
252b5132 RH |
7620 | } |
7621 | ||
5e35cbc2 | 7622 | /* Return NULL if the PATTERN argument is a glob pattern, otherwise, |
ae5a3597 | 7623 | return a pointer to the symbol name with any backslash quotes removed. */ |
5e35cbc2 L |
7624 | |
7625 | static const char * | |
7626 | realsymbol (const char *pattern) | |
7627 | { | |
7628 | const char *p; | |
7629 | bfd_boolean changed = FALSE, backslash = FALSE; | |
1e9cc1c2 | 7630 | char *s, *symbol = (char *) xmalloc (strlen (pattern) + 1); |
5e35cbc2 L |
7631 | |
7632 | for (p = pattern, s = symbol; *p != '\0'; ++p) | |
7633 | { | |
7634 | /* It is a glob pattern only if there is no preceding | |
7635 | backslash. */ | |
5e35cbc2 L |
7636 | if (backslash) |
7637 | { | |
7638 | /* Remove the preceding backslash. */ | |
7639 | *(s - 1) = *p; | |
ae5a3597 | 7640 | backslash = FALSE; |
5e35cbc2 L |
7641 | changed = TRUE; |
7642 | } | |
7643 | else | |
ae5a3597 AM |
7644 | { |
7645 | if (*p == '?' || *p == '*' || *p == '[') | |
7646 | { | |
7647 | free (symbol); | |
7648 | return NULL; | |
7649 | } | |
5e35cbc2 | 7650 | |
ae5a3597 AM |
7651 | *s++ = *p; |
7652 | backslash = *p == '\\'; | |
7653 | } | |
5e35cbc2 L |
7654 | } |
7655 | ||
7656 | if (changed) | |
7657 | { | |
7658 | *s = '\0'; | |
7659 | return symbol; | |
7660 | } | |
7661 | else | |
7662 | { | |
7663 | free (symbol); | |
7664 | return pattern; | |
7665 | } | |
7666 | } | |
7667 | ||
d3ce72d0 | 7668 | /* This is called for each variable name or match expression. NEW_NAME is |
86043bbb MM |
7669 | the name of the symbol to match, or, if LITERAL_P is FALSE, a glob |
7670 | pattern to be matched against symbol names. */ | |
252b5132 RH |
7671 | |
7672 | struct bfd_elf_version_expr * | |
1579bae1 | 7673 | lang_new_vers_pattern (struct bfd_elf_version_expr *orig, |
d3ce72d0 | 7674 | const char *new_name, |
86043bbb MM |
7675 | const char *lang, |
7676 | bfd_boolean literal_p) | |
252b5132 RH |
7677 | { |
7678 | struct bfd_elf_version_expr *ret; | |
7679 | ||
d3ce72d0 | 7680 | ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret); |
252b5132 | 7681 | ret->next = orig; |
31941635 L |
7682 | ret->symver = 0; |
7683 | ret->script = 0; | |
ae5a3597 | 7684 | ret->literal = TRUE; |
d3ce72d0 | 7685 | ret->pattern = literal_p ? new_name : realsymbol (new_name); |
ae5a3597 AM |
7686 | if (ret->pattern == NULL) |
7687 | { | |
d3ce72d0 | 7688 | ret->pattern = new_name; |
ae5a3597 AM |
7689 | ret->literal = FALSE; |
7690 | } | |
252b5132 RH |
7691 | |
7692 | if (lang == NULL || strcasecmp (lang, "C") == 0) | |
108ba305 | 7693 | ret->mask = BFD_ELF_VERSION_C_TYPE; |
252b5132 | 7694 | else if (strcasecmp (lang, "C++") == 0) |
108ba305 | 7695 | ret->mask = BFD_ELF_VERSION_CXX_TYPE; |
252b5132 | 7696 | else if (strcasecmp (lang, "Java") == 0) |
108ba305 | 7697 | ret->mask = BFD_ELF_VERSION_JAVA_TYPE; |
252b5132 RH |
7698 | else |
7699 | { | |
7700 | einfo (_("%X%P: unknown language `%s' in version information\n"), | |
7701 | lang); | |
108ba305 | 7702 | ret->mask = BFD_ELF_VERSION_C_TYPE; |
252b5132 RH |
7703 | } |
7704 | ||
fac1652d | 7705 | return ldemul_new_vers_pattern (ret); |
252b5132 RH |
7706 | } |
7707 | ||
7708 | /* This is called for each set of variable names and match | |
7709 | expressions. */ | |
7710 | ||
7711 | struct bfd_elf_version_tree * | |
1579bae1 AM |
7712 | lang_new_vers_node (struct bfd_elf_version_expr *globals, |
7713 | struct bfd_elf_version_expr *locals) | |
252b5132 RH |
7714 | { |
7715 | struct bfd_elf_version_tree *ret; | |
7716 | ||
1e9cc1c2 | 7717 | ret = (struct bfd_elf_version_tree *) xcalloc (1, sizeof *ret); |
108ba305 JJ |
7718 | ret->globals.list = globals; |
7719 | ret->locals.list = locals; | |
7720 | ret->match = lang_vers_match; | |
252b5132 | 7721 | ret->name_indx = (unsigned int) -1; |
252b5132 RH |
7722 | return ret; |
7723 | } | |
7724 | ||
7725 | /* This static variable keeps track of version indices. */ | |
7726 | ||
7727 | static int version_index; | |
7728 | ||
108ba305 JJ |
7729 | static hashval_t |
7730 | version_expr_head_hash (const void *p) | |
7731 | { | |
1e9cc1c2 NC |
7732 | const struct bfd_elf_version_expr *e = |
7733 | (const struct bfd_elf_version_expr *) p; | |
108ba305 | 7734 | |
ae5a3597 | 7735 | return htab_hash_string (e->pattern); |
108ba305 JJ |
7736 | } |
7737 | ||
7738 | static int | |
7739 | version_expr_head_eq (const void *p1, const void *p2) | |
7740 | { | |
1e9cc1c2 NC |
7741 | const struct bfd_elf_version_expr *e1 = |
7742 | (const struct bfd_elf_version_expr *) p1; | |
7743 | const struct bfd_elf_version_expr *e2 = | |
7744 | (const struct bfd_elf_version_expr *) p2; | |
108ba305 | 7745 | |
ae5a3597 | 7746 | return strcmp (e1->pattern, e2->pattern) == 0; |
108ba305 JJ |
7747 | } |
7748 | ||
7749 | static void | |
7750 | lang_finalize_version_expr_head (struct bfd_elf_version_expr_head *head) | |
7751 | { | |
7752 | size_t count = 0; | |
7753 | struct bfd_elf_version_expr *e, *next; | |
7754 | struct bfd_elf_version_expr **list_loc, **remaining_loc; | |
7755 | ||
7756 | for (e = head->list; e; e = e->next) | |
7757 | { | |
ae5a3597 | 7758 | if (e->literal) |
108ba305 JJ |
7759 | count++; |
7760 | head->mask |= e->mask; | |
7761 | } | |
7762 | ||
7763 | if (count) | |
7764 | { | |
7765 | head->htab = htab_create (count * 2, version_expr_head_hash, | |
7766 | version_expr_head_eq, NULL); | |
7767 | list_loc = &head->list; | |
7768 | remaining_loc = &head->remaining; | |
7769 | for (e = head->list; e; e = next) | |
7770 | { | |
7771 | next = e->next; | |
ae5a3597 | 7772 | if (!e->literal) |
108ba305 JJ |
7773 | { |
7774 | *remaining_loc = e; | |
7775 | remaining_loc = &e->next; | |
7776 | } | |
7777 | else | |
7778 | { | |
1e9cc1c2 | 7779 | void **loc = htab_find_slot ((htab_t) head->htab, e, INSERT); |
108ba305 JJ |
7780 | |
7781 | if (*loc) | |
7782 | { | |
7783 | struct bfd_elf_version_expr *e1, *last; | |
7784 | ||
1e9cc1c2 | 7785 | e1 = (struct bfd_elf_version_expr *) *loc; |
108ba305 JJ |
7786 | last = NULL; |
7787 | do | |
7788 | { | |
7789 | if (e1->mask == e->mask) | |
7790 | { | |
7791 | last = NULL; | |
7792 | break; | |
7793 | } | |
7794 | last = e1; | |
7795 | e1 = e1->next; | |
7796 | } | |
ae5a3597 | 7797 | while (e1 && strcmp (e1->pattern, e->pattern) == 0); |
108ba305 JJ |
7798 | |
7799 | if (last == NULL) | |
7800 | { | |
7801 | /* This is a duplicate. */ | |
7802 | /* FIXME: Memory leak. Sometimes pattern is not | |
7803 | xmalloced alone, but in larger chunk of memory. */ | |
ae5a3597 | 7804 | /* free (e->pattern); */ |
108ba305 JJ |
7805 | free (e); |
7806 | } | |
7807 | else | |
7808 | { | |
7809 | e->next = last->next; | |
7810 | last->next = e; | |
7811 | } | |
7812 | } | |
7813 | else | |
7814 | { | |
7815 | *loc = e; | |
7816 | *list_loc = e; | |
7817 | list_loc = &e->next; | |
7818 | } | |
7819 | } | |
7820 | } | |
7821 | *remaining_loc = NULL; | |
7822 | *list_loc = head->remaining; | |
7823 | } | |
7824 | else | |
7825 | head->remaining = head->list; | |
7826 | } | |
7827 | ||
252b5132 RH |
7828 | /* This is called when we know the name and dependencies of the |
7829 | version. */ | |
7830 | ||
7831 | void | |
1579bae1 AM |
7832 | lang_register_vers_node (const char *name, |
7833 | struct bfd_elf_version_tree *version, | |
7834 | struct bfd_elf_version_deps *deps) | |
252b5132 RH |
7835 | { |
7836 | struct bfd_elf_version_tree *t, **pp; | |
7837 | struct bfd_elf_version_expr *e1; | |
7838 | ||
6b9b879a JJ |
7839 | if (name == NULL) |
7840 | name = ""; | |
7841 | ||
fd91d419 L |
7842 | if (link_info.version_info != NULL |
7843 | && (name[0] == '\0' || link_info.version_info->name[0] == '\0')) | |
6b9b879a | 7844 | { |
6feb9908 AM |
7845 | einfo (_("%X%P: anonymous version tag cannot be combined" |
7846 | " with other version tags\n")); | |
5ed6aba4 | 7847 | free (version); |
6b9b879a JJ |
7848 | return; |
7849 | } | |
7850 | ||
252b5132 | 7851 | /* Make sure this node has a unique name. */ |
fd91d419 | 7852 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
7853 | if (strcmp (t->name, name) == 0) |
7854 | einfo (_("%X%P: duplicate version tag `%s'\n"), name); | |
7855 | ||
108ba305 JJ |
7856 | lang_finalize_version_expr_head (&version->globals); |
7857 | lang_finalize_version_expr_head (&version->locals); | |
7858 | ||
252b5132 RH |
7859 | /* Check the global and local match names, and make sure there |
7860 | aren't any duplicates. */ | |
7861 | ||
108ba305 | 7862 | for (e1 = version->globals.list; e1 != NULL; e1 = e1->next) |
252b5132 | 7863 | { |
fd91d419 | 7864 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
7865 | { |
7866 | struct bfd_elf_version_expr *e2; | |
7867 | ||
ae5a3597 | 7868 | if (t->locals.htab && e1->literal) |
108ba305 | 7869 | { |
1e9cc1c2 | 7870 | e2 = (struct bfd_elf_version_expr *) |
4724d37e | 7871 | htab_find ((htab_t) t->locals.htab, e1); |
ae5a3597 | 7872 | while (e2 && strcmp (e1->pattern, e2->pattern) == 0) |
108ba305 JJ |
7873 | { |
7874 | if (e1->mask == e2->mask) | |
6feb9908 | 7875 | einfo (_("%X%P: duplicate expression `%s'" |
ae5a3597 | 7876 | " in version information\n"), e1->pattern); |
108ba305 JJ |
7877 | e2 = e2->next; |
7878 | } | |
7879 | } | |
ae5a3597 | 7880 | else if (!e1->literal) |
108ba305 | 7881 | for (e2 = t->locals.remaining; e2 != NULL; e2 = e2->next) |
6feb9908 AM |
7882 | if (strcmp (e1->pattern, e2->pattern) == 0 |
7883 | && e1->mask == e2->mask) | |
7884 | einfo (_("%X%P: duplicate expression `%s'" | |
7885 | " in version information\n"), e1->pattern); | |
252b5132 RH |
7886 | } |
7887 | } | |
7888 | ||
108ba305 | 7889 | for (e1 = version->locals.list; e1 != NULL; e1 = e1->next) |
252b5132 | 7890 | { |
fd91d419 | 7891 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
7892 | { |
7893 | struct bfd_elf_version_expr *e2; | |
7894 | ||
ae5a3597 | 7895 | if (t->globals.htab && e1->literal) |
108ba305 | 7896 | { |
1e9cc1c2 | 7897 | e2 = (struct bfd_elf_version_expr *) |
4724d37e | 7898 | htab_find ((htab_t) t->globals.htab, e1); |
ae5a3597 | 7899 | while (e2 && strcmp (e1->pattern, e2->pattern) == 0) |
108ba305 JJ |
7900 | { |
7901 | if (e1->mask == e2->mask) | |
6feb9908 AM |
7902 | einfo (_("%X%P: duplicate expression `%s'" |
7903 | " in version information\n"), | |
ae5a3597 | 7904 | e1->pattern); |
108ba305 JJ |
7905 | e2 = e2->next; |
7906 | } | |
7907 | } | |
ae5a3597 | 7908 | else if (!e1->literal) |
108ba305 | 7909 | for (e2 = t->globals.remaining; e2 != NULL; e2 = e2->next) |
6feb9908 AM |
7910 | if (strcmp (e1->pattern, e2->pattern) == 0 |
7911 | && e1->mask == e2->mask) | |
7912 | einfo (_("%X%P: duplicate expression `%s'" | |
7913 | " in version information\n"), e1->pattern); | |
252b5132 RH |
7914 | } |
7915 | } | |
7916 | ||
7917 | version->deps = deps; | |
7918 | version->name = name; | |
6b9b879a JJ |
7919 | if (name[0] != '\0') |
7920 | { | |
7921 | ++version_index; | |
7922 | version->vernum = version_index; | |
7923 | } | |
7924 | else | |
7925 | version->vernum = 0; | |
252b5132 | 7926 | |
fd91d419 | 7927 | for (pp = &link_info.version_info; *pp != NULL; pp = &(*pp)->next) |
252b5132 RH |
7928 | ; |
7929 | *pp = version; | |
7930 | } | |
7931 | ||
7932 | /* This is called when we see a version dependency. */ | |
7933 | ||
7934 | struct bfd_elf_version_deps * | |
1579bae1 | 7935 | lang_add_vers_depend (struct bfd_elf_version_deps *list, const char *name) |
252b5132 RH |
7936 | { |
7937 | struct bfd_elf_version_deps *ret; | |
7938 | struct bfd_elf_version_tree *t; | |
7939 | ||
1e9cc1c2 | 7940 | ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret); |
252b5132 RH |
7941 | ret->next = list; |
7942 | ||
fd91d419 | 7943 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
7944 | { |
7945 | if (strcmp (t->name, name) == 0) | |
7946 | { | |
7947 | ret->version_needed = t; | |
7948 | return ret; | |
7949 | } | |
7950 | } | |
7951 | ||
7952 | einfo (_("%X%P: unable to find version dependency `%s'\n"), name); | |
7953 | ||
1e0061d2 | 7954 | ret->version_needed = NULL; |
252b5132 RH |
7955 | return ret; |
7956 | } | |
7957 | ||
7958 | static void | |
1579bae1 | 7959 | lang_do_version_exports_section (void) |
252b5132 RH |
7960 | { |
7961 | struct bfd_elf_version_expr *greg = NULL, *lreg; | |
7962 | ||
7963 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
7964 | { | |
7965 | asection *sec = bfd_get_section_by_name (is->the_bfd, ".exports"); | |
7966 | char *contents, *p; | |
7967 | bfd_size_type len; | |
7968 | ||
7969 | if (sec == NULL) | |
b7a26f91 | 7970 | continue; |
252b5132 | 7971 | |
eea6121a | 7972 | len = sec->size; |
1e9cc1c2 | 7973 | contents = (char *) xmalloc (len); |
252b5132 | 7974 | if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len)) |
6f9efd97 | 7975 | einfo (_("%X%P: unable to read .exports section contents\n"), sec); |
252b5132 RH |
7976 | |
7977 | p = contents; | |
89cdebba | 7978 | while (p < contents + len) |
252b5132 | 7979 | { |
86043bbb | 7980 | greg = lang_new_vers_pattern (greg, p, NULL, FALSE); |
252b5132 RH |
7981 | p = strchr (p, '\0') + 1; |
7982 | } | |
7983 | ||
7984 | /* Do not free the contents, as we used them creating the regex. */ | |
7985 | ||
7986 | /* Do not include this section in the link. */ | |
a14a5de3 | 7987 | sec->flags |= SEC_EXCLUDE | SEC_KEEP; |
252b5132 RH |
7988 | } |
7989 | ||
86043bbb | 7990 | lreg = lang_new_vers_pattern (NULL, "*", NULL, FALSE); |
252b5132 RH |
7991 | lang_register_vers_node (command_line.version_exports_section, |
7992 | lang_new_vers_node (greg, lreg), NULL); | |
7993 | } | |
577a0623 AM |
7994 | |
7995 | void | |
1579bae1 | 7996 | lang_add_unique (const char *name) |
577a0623 AM |
7997 | { |
7998 | struct unique_sections *ent; | |
7999 | ||
8000 | for (ent = unique_section_list; ent; ent = ent->next) | |
8001 | if (strcmp (ent->name, name) == 0) | |
8002 | return; | |
8003 | ||
1e9cc1c2 | 8004 | ent = (struct unique_sections *) xmalloc (sizeof *ent); |
577a0623 AM |
8005 | ent->name = xstrdup (name); |
8006 | ent->next = unique_section_list; | |
8007 | unique_section_list = ent; | |
8008 | } | |
55255dae L |
8009 | |
8010 | /* Append the list of dynamic symbols to the existing one. */ | |
8011 | ||
8012 | void | |
8013 | lang_append_dynamic_list (struct bfd_elf_version_expr *dynamic) | |
8014 | { | |
40b36307 | 8015 | if (link_info.dynamic_list) |
55255dae | 8016 | { |
07806542 JJ |
8017 | struct bfd_elf_version_expr *tail; |
8018 | for (tail = dynamic; tail->next != NULL; tail = tail->next) | |
8019 | ; | |
40b36307 L |
8020 | tail->next = link_info.dynamic_list->head.list; |
8021 | link_info.dynamic_list->head.list = dynamic; | |
55255dae L |
8022 | } |
8023 | else | |
8024 | { | |
8025 | struct bfd_elf_dynamic_list *d; | |
8026 | ||
1e9cc1c2 | 8027 | d = (struct bfd_elf_dynamic_list *) xcalloc (1, sizeof *d); |
55255dae L |
8028 | d->head.list = dynamic; |
8029 | d->match = lang_vers_match; | |
40b36307 | 8030 | link_info.dynamic_list = d; |
55255dae L |
8031 | } |
8032 | } | |
8033 | ||
8034 | /* Append the list of C++ typeinfo dynamic symbols to the existing | |
8035 | one. */ | |
8036 | ||
8037 | void | |
8038 | lang_append_dynamic_list_cpp_typeinfo (void) | |
8039 | { | |
8040 | const char * symbols [] = | |
8041 | { | |
8042 | "typeinfo name for*", | |
8043 | "typeinfo for*" | |
8044 | }; | |
8045 | struct bfd_elf_version_expr *dynamic = NULL; | |
8046 | unsigned int i; | |
8047 | ||
8048 | for (i = 0; i < ARRAY_SIZE (symbols); i++) | |
8049 | dynamic = lang_new_vers_pattern (dynamic, symbols [i], "C++", | |
8050 | FALSE); | |
8051 | ||
8052 | lang_append_dynamic_list (dynamic); | |
8053 | } | |
40b36307 L |
8054 | |
8055 | /* Append the list of C++ operator new and delete dynamic symbols to the | |
8056 | existing one. */ | |
8057 | ||
8058 | void | |
8059 | lang_append_dynamic_list_cpp_new (void) | |
8060 | { | |
8061 | const char * symbols [] = | |
8062 | { | |
8063 | "operator new*", | |
8064 | "operator delete*" | |
8065 | }; | |
8066 | struct bfd_elf_version_expr *dynamic = NULL; | |
8067 | unsigned int i; | |
8068 | ||
8069 | for (i = 0; i < ARRAY_SIZE (symbols); i++) | |
8070 | dynamic = lang_new_vers_pattern (dynamic, symbols [i], "C++", | |
8071 | FALSE); | |
8072 | ||
8073 | lang_append_dynamic_list (dynamic); | |
8074 | } | |
01554a74 AM |
8075 | |
8076 | /* Scan a space and/or comma separated string of features. */ | |
8077 | ||
8078 | void | |
8079 | lang_ld_feature (char *str) | |
8080 | { | |
8081 | char *p, *q; | |
8082 | ||
8083 | p = str; | |
8084 | while (*p) | |
8085 | { | |
8086 | char sep; | |
8087 | while (*p == ',' || ISSPACE (*p)) | |
8088 | ++p; | |
8089 | if (!*p) | |
8090 | break; | |
8091 | q = p + 1; | |
8092 | while (*q && *q != ',' && !ISSPACE (*q)) | |
8093 | ++q; | |
8094 | sep = *q; | |
8095 | *q = 0; | |
8096 | if (strcasecmp (p, "SANE_EXPR") == 0) | |
8097 | config.sane_expr = TRUE; | |
8098 | else | |
8099 | einfo (_("%X%P: unknown feature `%s'\n"), p); | |
8100 | *q = sep; | |
8101 | p = q; | |
8102 | } | |
8103 | } |