Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Linker command language support. |
a2b64bed | 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
cdaa438c | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
f96b4a7b | 6 | This file is part of the GNU Binutils. |
252b5132 | 7 | |
f96b4a7b | 8 | This program is free software; you can redistribute it and/or modify |
53b2a62f | 9 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
10 | the Free Software Foundation; either version 3 of the License, or |
11 | (at your option) any later version. | |
252b5132 | 12 | |
f96b4a7b | 13 | This program is distributed in the hope that it will be useful, |
53b2a62f NC |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
53b2a62f | 18 | You should have received a copy of the GNU General Public License |
f96b4a7b NC |
19 | along with this program; if not, write to the Free Software |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | MA 02110-1301, USA. */ | |
252b5132 | 22 | |
252b5132 | 23 | #include "sysdep.h" |
3db64b00 | 24 | #include "bfd.h" |
252b5132 | 25 | #include "libiberty.h" |
42627821 | 26 | #include "filenames.h" |
3882b010 | 27 | #include "safe-ctype.h" |
252b5132 RH |
28 | #include "obstack.h" |
29 | #include "bfdlink.h" | |
30 | ||
31 | #include "ld.h" | |
32 | #include "ldmain.h" | |
252b5132 RH |
33 | #include "ldexp.h" |
34 | #include "ldlang.h" | |
df2a7313 | 35 | #include <ldgram.h> |
252b5132 RH |
36 | #include "ldlex.h" |
37 | #include "ldmisc.h" | |
38 | #include "ldctor.h" | |
39 | #include "ldfile.h" | |
b71e2778 | 40 | #include "ldemul.h" |
252b5132 RH |
41 | #include "fnmatch.h" |
42 | #include "demangle.h" | |
108ba305 | 43 | #include "hashtab.h" |
5d3236ee DK |
44 | #include "libbfd.h" |
45 | #ifdef ENABLE_PLUGINS | |
46 | #include "plugin.h" | |
47 | #endif /* ENABLE_PLUGINS */ | |
252b5132 | 48 | |
7abb6dea | 49 | #ifndef offsetof |
cf888e70 | 50 | #define offsetof(TYPE, MEMBER) ((size_t) & (((TYPE*) 0)->MEMBER)) |
7abb6dea AM |
51 | #endif |
52 | ||
cf888e70 | 53 | /* Locals variables. */ |
252b5132 | 54 | static struct obstack stat_obstack; |
35835446 | 55 | static struct obstack map_obstack; |
252b5132 RH |
56 | |
57 | #define obstack_chunk_alloc xmalloc | |
58 | #define obstack_chunk_free free | |
8be573a7 | 59 | static const char *entry_symbol_default = "start"; |
b34976b6 | 60 | static bfd_boolean placed_commons = FALSE; |
8423293d | 61 | static bfd_boolean stripped_excluded_sections = FALSE; |
252b5132 | 62 | static lang_output_section_statement_type *default_common_section; |
b34976b6 | 63 | static bfd_boolean map_option_f; |
252b5132 RH |
64 | static bfd_vma print_dot; |
65 | static lang_input_statement_type *first_file; | |
5f992e62 | 66 | static const char *current_target; |
252b5132 | 67 | static lang_statement_list_type statement_list; |
420e579c | 68 | static struct bfd_hash_table lang_definedness_table; |
bde18da4 AM |
69 | static lang_statement_list_type *stat_save[10]; |
70 | static lang_statement_list_type **stat_save_ptr = &stat_save[0]; | |
c4b78195 | 71 | static struct unique_sections *unique_section_list; |
252b5132 | 72 | |
cf888e70 | 73 | /* Forward declarations. */ |
a431bc2e | 74 | static void exp_init_os (etree_type *); |
35835446 | 75 | static void init_map_userdata (bfd *, asection *, void *); |
1579bae1 | 76 | static lang_input_statement_type *lookup_name (const char *); |
420e579c HPN |
77 | static struct bfd_hash_entry *lang_definedness_newfunc |
78 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); | |
1579bae1 | 79 | static void insert_undefined (const char *); |
35835446 | 80 | static bfd_boolean sort_def_symbol (struct bfd_link_hash_entry *, void *); |
1579bae1 AM |
81 | static void print_statement (lang_statement_union_type *, |
82 | lang_output_section_statement_type *); | |
83 | static void print_statement_list (lang_statement_union_type *, | |
84 | lang_output_section_statement_type *); | |
85 | static void print_statements (void); | |
d64703c6 | 86 | static void print_input_section (asection *, bfd_boolean); |
1579bae1 AM |
87 | static bfd_boolean lang_one_common (struct bfd_link_hash_entry *, void *); |
88 | static void lang_record_phdrs (void); | |
89 | static void lang_do_version_exports_section (void); | |
55255dae L |
90 | static void lang_finalize_version_expr_head |
91 | (struct bfd_elf_version_expr_head *); | |
1579bae1 | 92 | |
cf888e70 | 93 | /* Exported variables. */ |
8be573a7 | 94 | const char *output_target; |
252b5132 | 95 | lang_output_section_statement_type *abs_output_section; |
aea4bd9d | 96 | lang_statement_list_type lang_output_section_statement; |
252b5132 | 97 | lang_statement_list_type *stat_ptr = &statement_list; |
87f2a346 | 98 | lang_statement_list_type file_chain = { NULL, NULL }; |
dc27aea4 | 99 | lang_statement_list_type input_file_chain; |
e3e942e9 | 100 | struct bfd_sym_chain entry_symbol = { NULL, NULL }; |
1e281515 | 101 | const char *entry_section = ".text"; |
66be1055 | 102 | struct lang_input_statement_flags input_flags; |
b34976b6 | 103 | bfd_boolean entry_from_cmdline; |
24898b70 | 104 | bfd_boolean undef_from_cmdline; |
b34976b6 AM |
105 | bfd_boolean lang_has_input_file = FALSE; |
106 | bfd_boolean had_output_filename = FALSE; | |
107 | bfd_boolean lang_float_flag = FALSE; | |
108 | bfd_boolean delete_output_file_on_failure = FALSE; | |
f5ff60a6 | 109 | struct lang_phdr *lang_phdr_list; |
252b5132 | 110 | struct lang_nocrossrefs *nocrossref_list; |
e9ee469a AM |
111 | |
112 | /* Functions that traverse the linker script and might evaluate | |
113 | DEFINED() need to increment this. */ | |
420e579c | 114 | int lang_statement_iteration = 0; |
252b5132 RH |
115 | |
116 | etree_type *base; /* Relocation base - or null */ | |
117 | ||
61f5d054 L |
118 | /* Return TRUE if the PATTERN argument is a wildcard pattern. |
119 | Although backslashes are treated specially if a pattern contains | |
120 | wildcards, we do not consider the mere presence of a backslash to | |
121 | be enough to cause the pattern to be treated as a wildcard. | |
122 | That lets us handle DOS filenames more naturally. */ | |
123 | #define wildcardp(pattern) (strpbrk ((pattern), "?*[") != NULL) | |
124 | ||
d1778b88 | 125 | #define new_stat(x, y) \ |
1579bae1 | 126 | (x##_type *) new_statement (x##_enum, sizeof (x##_type), y) |
252b5132 | 127 | |
d1778b88 AM |
128 | #define outside_section_address(q) \ |
129 | ((q)->output_offset + (q)->output_section->vma) | |
252b5132 | 130 | |
d1778b88 AM |
131 | #define outside_symbol_address(q) \ |
132 | ((q)->value + outside_section_address (q->section)) | |
252b5132 RH |
133 | |
134 | #define SECTION_NAME_MAP_LENGTH (16) | |
135 | ||
1579bae1 AM |
136 | void * |
137 | stat_alloc (size_t size) | |
252b5132 RH |
138 | { |
139 | return obstack_alloc (&stat_obstack, size); | |
140 | } | |
141 | ||
97407faf AM |
142 | static int |
143 | name_match (const char *pattern, const char *name) | |
144 | { | |
145 | if (wildcardp (pattern)) | |
146 | return fnmatch (pattern, name, 0); | |
147 | return strcmp (pattern, name); | |
148 | } | |
149 | ||
150 | /* If PATTERN is of the form archive:file, return a pointer to the | |
151 | separator. If not, return NULL. */ | |
152 | ||
153 | static char * | |
154 | archive_path (const char *pattern) | |
155 | { | |
156 | char *p = NULL; | |
157 | ||
158 | if (link_info.path_separator == 0) | |
159 | return p; | |
160 | ||
161 | p = strchr (pattern, link_info.path_separator); | |
162 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
163 | if (p == NULL || link_info.path_separator != ':') | |
164 | return p; | |
165 | ||
166 | /* Assume a match on the second char is part of drive specifier, | |
167 | as in "c:\silly.dos". */ | |
967928e9 | 168 | if (p == pattern + 1 && ISALPHA (*pattern)) |
97407faf AM |
169 | p = strchr (p + 1, link_info.path_separator); |
170 | #endif | |
171 | return p; | |
172 | } | |
173 | ||
967928e9 AM |
174 | /* Given that FILE_SPEC results in a non-NULL SEP result from archive_path, |
175 | return whether F matches FILE_SPEC. */ | |
176 | ||
177 | static bfd_boolean | |
178 | input_statement_is_archive_path (const char *file_spec, char *sep, | |
179 | lang_input_statement_type *f) | |
180 | { | |
181 | bfd_boolean match = FALSE; | |
182 | ||
183 | if ((*(sep + 1) == 0 | |
184 | || name_match (sep + 1, f->filename) == 0) | |
185 | && ((sep != file_spec) | |
186 | == (f->the_bfd != NULL && f->the_bfd->my_archive != NULL))) | |
187 | { | |
188 | match = TRUE; | |
189 | ||
190 | if (sep != file_spec) | |
191 | { | |
192 | const char *aname = f->the_bfd->my_archive->filename; | |
193 | *sep = 0; | |
194 | match = name_match (file_spec, aname) == 0; | |
195 | *sep = link_info.path_separator; | |
196 | } | |
197 | } | |
198 | return match; | |
199 | } | |
200 | ||
8a99a385 | 201 | static bfd_boolean |
d0bf826b AM |
202 | unique_section_p (const asection *sec, |
203 | const lang_output_section_statement_type *os) | |
577a0623 AM |
204 | { |
205 | struct unique_sections *unam; | |
d0d6a25b | 206 | const char *secnam; |
577a0623 | 207 | |
d0d6a25b AM |
208 | if (link_info.relocatable |
209 | && sec->owner != NULL | |
210 | && bfd_is_group_section (sec->owner, sec)) | |
d0bf826b AM |
211 | return !(os != NULL |
212 | && strcmp (os->name, DISCARD_SECTION_NAME) == 0); | |
d0d6a25b AM |
213 | |
214 | secnam = sec->name; | |
577a0623 | 215 | for (unam = unique_section_list; unam; unam = unam->next) |
97407faf AM |
216 | if (name_match (unam->name, secnam) == 0) |
217 | return TRUE; | |
577a0623 | 218 | |
b34976b6 | 219 | return FALSE; |
577a0623 AM |
220 | } |
221 | ||
08da4cac | 222 | /* Generic traversal routines for finding matching sections. */ |
4dec4d4e | 223 | |
72223188 JJ |
224 | /* Try processing a section against a wildcard. This just calls |
225 | the callback unless the filename exclusion list is present | |
226 | and excludes the file. It's hardly ever present so this | |
227 | function is very fast. */ | |
228 | ||
4dec4d4e | 229 | static void |
72223188 JJ |
230 | walk_wild_consider_section (lang_wild_statement_type *ptr, |
231 | lang_input_statement_type *file, | |
232 | asection *s, | |
233 | struct wildcard_list *sec, | |
234 | callback_t callback, | |
235 | void *data) | |
4dec4d4e | 236 | { |
72223188 JJ |
237 | struct name_list *list_tmp; |
238 | ||
ae17ab41 CM |
239 | /* Propagate the section_flag_info from the wild statement to the section. */ |
240 | s->section_flag_info = ptr->section_flag_list; | |
241 | ||
97407faf | 242 | /* Don't process sections from files which were excluded. */ |
72223188 JJ |
243 | for (list_tmp = sec->spec.exclude_name_list; |
244 | list_tmp; | |
245 | list_tmp = list_tmp->next) | |
246 | { | |
967928e9 | 247 | char *p = archive_path (list_tmp->name); |
b6bf44ba | 248 | |
967928e9 | 249 | if (p != NULL) |
72223188 | 250 | { |
967928e9 AM |
251 | if (input_statement_is_archive_path (list_tmp->name, p, file)) |
252 | return; | |
72223188 JJ |
253 | } |
254 | ||
967928e9 AM |
255 | else if (name_match (list_tmp->name, file->filename) == 0) |
256 | return; | |
257 | ||
258 | /* FIXME: Perhaps remove the following at some stage? Matching | |
259 | unadorned archives like this was never documented and has | |
260 | been superceded by the archive:path syntax. */ | |
261 | else if (file->the_bfd != NULL | |
262 | && file->the_bfd->my_archive != NULL | |
263 | && name_match (list_tmp->name, | |
264 | file->the_bfd->my_archive->filename) == 0) | |
265 | return; | |
72223188 JJ |
266 | } |
267 | ||
967928e9 | 268 | (*callback) (ptr, sec, s, file, data); |
72223188 JJ |
269 | } |
270 | ||
271 | /* Lowest common denominator routine that can handle everything correctly, | |
272 | but slowly. */ | |
273 | ||
274 | static void | |
275 | walk_wild_section_general (lang_wild_statement_type *ptr, | |
276 | lang_input_statement_type *file, | |
277 | callback_t callback, | |
278 | void *data) | |
279 | { | |
280 | asection *s; | |
281 | struct wildcard_list *sec; | |
b6bf44ba AM |
282 | |
283 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
4dec4d4e | 284 | { |
b6bf44ba | 285 | sec = ptr->section_list; |
2181f54f AM |
286 | if (sec == NULL) |
287 | (*callback) (ptr, sec, s, file, data); | |
288 | ||
289 | while (sec != NULL) | |
08da4cac | 290 | { |
b34976b6 | 291 | bfd_boolean skip = FALSE; |
2181f54f | 292 | |
72223188 | 293 | if (sec->spec.name != NULL) |
b6bf44ba | 294 | { |
2181f54f AM |
295 | const char *sname = bfd_get_section_name (file->the_bfd, s); |
296 | ||
97407faf | 297 | skip = name_match (sec->spec.name, sname) != 0; |
b6bf44ba | 298 | } |
4dec4d4e | 299 | |
b6bf44ba | 300 | if (!skip) |
72223188 | 301 | walk_wild_consider_section (ptr, file, s, sec, callback, data); |
4dec4d4e | 302 | |
2181f54f | 303 | sec = sec->next; |
4dec4d4e RH |
304 | } |
305 | } | |
306 | } | |
307 | ||
72223188 JJ |
308 | /* Routines to find a single section given its name. If there's more |
309 | than one section with that name, we report that. */ | |
310 | ||
311 | typedef struct | |
312 | { | |
313 | asection *found_section; | |
314 | bfd_boolean multiple_sections_found; | |
315 | } section_iterator_callback_data; | |
316 | ||
317 | static bfd_boolean | |
91d6fa6a | 318 | section_iterator_callback (bfd *abfd ATTRIBUTE_UNUSED, asection *s, void *data) |
72223188 | 319 | { |
1e9cc1c2 | 320 | section_iterator_callback_data *d = (section_iterator_callback_data *) data; |
72223188 JJ |
321 | |
322 | if (d->found_section != NULL) | |
323 | { | |
324 | d->multiple_sections_found = TRUE; | |
325 | return TRUE; | |
326 | } | |
327 | ||
328 | d->found_section = s; | |
329 | return FALSE; | |
330 | } | |
331 | ||
332 | static asection * | |
333 | find_section (lang_input_statement_type *file, | |
334 | struct wildcard_list *sec, | |
335 | bfd_boolean *multiple_sections_found) | |
336 | { | |
337 | section_iterator_callback_data cb_data = { NULL, FALSE }; | |
338 | ||
329c1c86 | 339 | bfd_get_section_by_name_if (file->the_bfd, sec->spec.name, |
72223188 JJ |
340 | section_iterator_callback, &cb_data); |
341 | *multiple_sections_found = cb_data.multiple_sections_found; | |
342 | return cb_data.found_section; | |
343 | } | |
344 | ||
345 | /* Code for handling simple wildcards without going through fnmatch, | |
346 | which can be expensive because of charset translations etc. */ | |
347 | ||
348 | /* A simple wild is a literal string followed by a single '*', | |
349 | where the literal part is at least 4 characters long. */ | |
350 | ||
351 | static bfd_boolean | |
352 | is_simple_wild (const char *name) | |
353 | { | |
354 | size_t len = strcspn (name, "*?["); | |
355 | return len >= 4 && name[len] == '*' && name[len + 1] == '\0'; | |
356 | } | |
357 | ||
358 | static bfd_boolean | |
359 | match_simple_wild (const char *pattern, const char *name) | |
360 | { | |
361 | /* The first four characters of the pattern are guaranteed valid | |
362 | non-wildcard characters. So we can go faster. */ | |
363 | if (pattern[0] != name[0] || pattern[1] != name[1] | |
364 | || pattern[2] != name[2] || pattern[3] != name[3]) | |
365 | return FALSE; | |
366 | ||
367 | pattern += 4; | |
368 | name += 4; | |
369 | while (*pattern != '*') | |
370 | if (*name++ != *pattern++) | |
371 | return FALSE; | |
372 | ||
373 | return TRUE; | |
374 | } | |
375 | ||
02ecc8e9 L |
376 | /* Return the numerical value of the init_priority attribute from |
377 | section name NAME. */ | |
378 | ||
379 | static unsigned long | |
380 | get_init_priority (const char *name) | |
381 | { | |
382 | char *end; | |
383 | unsigned long init_priority; | |
384 | ||
385 | /* GCC uses the following section names for the init_priority | |
386 | attribute with numerical values 101 and 65535 inclusive. A | |
387 | lower value means a higher priority. | |
388 | ||
389 | 1: .init_array.NNNN/.fini_array.NNNN: Where NNNN is the | |
390 | decimal numerical value of the init_priority attribute. | |
391 | The order of execution in .init_array is forward and | |
392 | .fini_array is backward. | |
393 | 2: .ctors.NNNN/.ctors.NNNN: Where NNNN is 65535 minus the | |
394 | decimal numerical value of the init_priority attribute. | |
395 | The order of execution in .ctors is backward and .dtors | |
396 | is forward. | |
397 | */ | |
398 | if (strncmp (name, ".init_array.", 12) == 0 | |
399 | || strncmp (name, ".fini_array.", 12) == 0) | |
400 | { | |
401 | init_priority = strtoul (name + 12, &end, 10); | |
402 | return *end ? 0 : init_priority; | |
403 | } | |
404 | else if (strncmp (name, ".ctors.", 7) == 0 | |
405 | || strncmp (name, ".dtors.", 7) == 0) | |
406 | { | |
407 | init_priority = strtoul (name + 7, &end, 10); | |
408 | return *end ? 0 : 65535 - init_priority; | |
409 | } | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
50c77e5d NC |
414 | /* Compare sections ASEC and BSEC according to SORT. */ |
415 | ||
416 | static int | |
417 | compare_section (sort_type sort, asection *asec, asection *bsec) | |
418 | { | |
419 | int ret; | |
02ecc8e9 | 420 | unsigned long ainit_priority, binit_priority; |
50c77e5d NC |
421 | |
422 | switch (sort) | |
423 | { | |
424 | default: | |
425 | abort (); | |
426 | ||
02ecc8e9 L |
427 | case by_init_priority: |
428 | ainit_priority | |
429 | = get_init_priority (bfd_get_section_name (asec->owner, asec)); | |
430 | binit_priority | |
431 | = get_init_priority (bfd_get_section_name (bsec->owner, bsec)); | |
432 | if (ainit_priority == 0 || binit_priority == 0) | |
433 | goto sort_by_name; | |
434 | ret = ainit_priority - binit_priority; | |
435 | if (ret) | |
436 | break; | |
437 | else | |
438 | goto sort_by_name; | |
439 | ||
50c77e5d NC |
440 | case by_alignment_name: |
441 | ret = (bfd_section_alignment (bsec->owner, bsec) | |
442 | - bfd_section_alignment (asec->owner, asec)); | |
443 | if (ret) | |
444 | break; | |
445 | /* Fall through. */ | |
446 | ||
447 | case by_name: | |
02ecc8e9 | 448 | sort_by_name: |
50c77e5d NC |
449 | ret = strcmp (bfd_get_section_name (asec->owner, asec), |
450 | bfd_get_section_name (bsec->owner, bsec)); | |
451 | break; | |
452 | ||
453 | case by_name_alignment: | |
454 | ret = strcmp (bfd_get_section_name (asec->owner, asec), | |
455 | bfd_get_section_name (bsec->owner, bsec)); | |
456 | if (ret) | |
457 | break; | |
458 | /* Fall through. */ | |
459 | ||
460 | case by_alignment: | |
461 | ret = (bfd_section_alignment (bsec->owner, bsec) | |
462 | - bfd_section_alignment (asec->owner, asec)); | |
463 | break; | |
464 | } | |
465 | ||
466 | return ret; | |
467 | } | |
468 | ||
329c1c86 | 469 | /* Build a Binary Search Tree to sort sections, unlike insertion sort |
50c77e5d NC |
470 | used in wild_sort(). BST is considerably faster if the number of |
471 | of sections are large. */ | |
472 | ||
473 | static lang_section_bst_type ** | |
474 | wild_sort_fast (lang_wild_statement_type *wild, | |
329c1c86 AM |
475 | struct wildcard_list *sec, |
476 | lang_input_statement_type *file ATTRIBUTE_UNUSED, | |
477 | asection *section) | |
50c77e5d | 478 | { |
329c1c86 | 479 | lang_section_bst_type **tree; |
50c77e5d | 480 | |
e6f2cbf5 | 481 | tree = &wild->tree; |
50c77e5d | 482 | if (!wild->filenames_sorted |
329c1c86 | 483 | && (sec == NULL || sec->spec.sorted == none)) |
50c77e5d NC |
484 | { |
485 | /* Append at the right end of tree. */ | |
486 | while (*tree) | |
329c1c86 | 487 | tree = &((*tree)->right); |
50c77e5d NC |
488 | return tree; |
489 | } | |
490 | ||
329c1c86 | 491 | while (*tree) |
50c77e5d NC |
492 | { |
493 | /* Find the correct node to append this section. */ | |
329c1c86 AM |
494 | if (compare_section (sec->spec.sorted, section, (*tree)->section) < 0) |
495 | tree = &((*tree)->left); | |
496 | else | |
497 | tree = &((*tree)->right); | |
50c77e5d NC |
498 | } |
499 | ||
500 | return tree; | |
501 | } | |
502 | ||
503 | /* Use wild_sort_fast to build a BST to sort sections. */ | |
504 | ||
505 | static void | |
506 | output_section_callback_fast (lang_wild_statement_type *ptr, | |
329c1c86 AM |
507 | struct wildcard_list *sec, |
508 | asection *section, | |
509 | lang_input_statement_type *file, | |
d0bf826b | 510 | void *output) |
50c77e5d NC |
511 | { |
512 | lang_section_bst_type *node; | |
513 | lang_section_bst_type **tree; | |
d0bf826b | 514 | lang_output_section_statement_type *os; |
50c77e5d | 515 | |
d0bf826b AM |
516 | os = (lang_output_section_statement_type *) output; |
517 | ||
518 | if (unique_section_p (section, os)) | |
50c77e5d NC |
519 | return; |
520 | ||
1e9cc1c2 | 521 | node = (lang_section_bst_type *) xmalloc (sizeof (lang_section_bst_type)); |
50c77e5d NC |
522 | node->left = 0; |
523 | node->right = 0; | |
524 | node->section = section; | |
525 | ||
526 | tree = wild_sort_fast (ptr, sec, file, section); | |
527 | if (tree != NULL) | |
528 | *tree = node; | |
529 | } | |
530 | ||
531 | /* Convert a sorted sections' BST back to list form. */ | |
532 | ||
533 | static void | |
329c1c86 AM |
534 | output_section_callback_tree_to_list (lang_wild_statement_type *ptr, |
535 | lang_section_bst_type *tree, | |
536 | void *output) | |
50c77e5d NC |
537 | { |
538 | if (tree->left) | |
539 | output_section_callback_tree_to_list (ptr, tree->left, output); | |
540 | ||
329c1c86 AM |
541 | lang_add_section (&ptr->children, tree->section, |
542 | (lang_output_section_statement_type *) output); | |
50c77e5d NC |
543 | |
544 | if (tree->right) | |
545 | output_section_callback_tree_to_list (ptr, tree->right, output); | |
546 | ||
547 | free (tree); | |
548 | } | |
549 | ||
72223188 JJ |
550 | /* Specialized, optimized routines for handling different kinds of |
551 | wildcards */ | |
552 | ||
553 | static void | |
554 | walk_wild_section_specs1_wild0 (lang_wild_statement_type *ptr, | |
555 | lang_input_statement_type *file, | |
556 | callback_t callback, | |
557 | void *data) | |
558 | { | |
559 | /* We can just do a hash lookup for the section with the right name. | |
560 | But if that lookup discovers more than one section with the name | |
561 | (should be rare), we fall back to the general algorithm because | |
562 | we would otherwise have to sort the sections to make sure they | |
563 | get processed in the bfd's order. */ | |
564 | bfd_boolean multiple_sections_found; | |
565 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
566 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
567 | ||
568 | if (multiple_sections_found) | |
569 | walk_wild_section_general (ptr, file, callback, data); | |
570 | else if (s0) | |
571 | walk_wild_consider_section (ptr, file, s0, sec0, callback, data); | |
572 | } | |
573 | ||
574 | static void | |
575 | walk_wild_section_specs1_wild1 (lang_wild_statement_type *ptr, | |
576 | lang_input_statement_type *file, | |
577 | callback_t callback, | |
578 | void *data) | |
579 | { | |
580 | asection *s; | |
581 | struct wildcard_list *wildsec0 = ptr->handler_data[0]; | |
582 | ||
583 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
584 | { | |
585 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
586 | bfd_boolean skip = !match_simple_wild (wildsec0->spec.name, sname); | |
587 | ||
588 | if (!skip) | |
589 | walk_wild_consider_section (ptr, file, s, wildsec0, callback, data); | |
590 | } | |
591 | } | |
592 | ||
593 | static void | |
594 | walk_wild_section_specs2_wild1 (lang_wild_statement_type *ptr, | |
595 | lang_input_statement_type *file, | |
596 | callback_t callback, | |
597 | void *data) | |
598 | { | |
599 | asection *s; | |
600 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
601 | struct wildcard_list *wildsec1 = ptr->handler_data[1]; | |
602 | bfd_boolean multiple_sections_found; | |
603 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
604 | ||
605 | if (multiple_sections_found) | |
606 | { | |
607 | walk_wild_section_general (ptr, file, callback, data); | |
608 | return; | |
609 | } | |
610 | ||
611 | /* Note that if the section was not found, s0 is NULL and | |
612 | we'll simply never succeed the s == s0 test below. */ | |
613 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
614 | { | |
615 | /* Recall that in this code path, a section cannot satisfy more | |
616 | than one spec, so if s == s0 then it cannot match | |
617 | wildspec1. */ | |
618 | if (s == s0) | |
619 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
620 | else | |
621 | { | |
622 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
623 | bfd_boolean skip = !match_simple_wild (wildsec1->spec.name, sname); | |
624 | ||
625 | if (!skip) | |
626 | walk_wild_consider_section (ptr, file, s, wildsec1, callback, | |
627 | data); | |
628 | } | |
629 | } | |
630 | } | |
631 | ||
632 | static void | |
633 | walk_wild_section_specs3_wild2 (lang_wild_statement_type *ptr, | |
634 | lang_input_statement_type *file, | |
635 | callback_t callback, | |
636 | void *data) | |
637 | { | |
638 | asection *s; | |
639 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
640 | struct wildcard_list *wildsec1 = ptr->handler_data[1]; | |
641 | struct wildcard_list *wildsec2 = ptr->handler_data[2]; | |
642 | bfd_boolean multiple_sections_found; | |
643 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
644 | ||
645 | if (multiple_sections_found) | |
646 | { | |
647 | walk_wild_section_general (ptr, file, callback, data); | |
648 | return; | |
649 | } | |
650 | ||
651 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
652 | { | |
653 | if (s == s0) | |
654 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
655 | else | |
656 | { | |
657 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
658 | bfd_boolean skip = !match_simple_wild (wildsec1->spec.name, sname); | |
659 | ||
660 | if (!skip) | |
661 | walk_wild_consider_section (ptr, file, s, wildsec1, callback, data); | |
662 | else | |
663 | { | |
664 | skip = !match_simple_wild (wildsec2->spec.name, sname); | |
665 | if (!skip) | |
666 | walk_wild_consider_section (ptr, file, s, wildsec2, callback, | |
667 | data); | |
668 | } | |
669 | } | |
670 | } | |
671 | } | |
672 | ||
673 | static void | |
674 | walk_wild_section_specs4_wild2 (lang_wild_statement_type *ptr, | |
675 | lang_input_statement_type *file, | |
676 | callback_t callback, | |
677 | void *data) | |
678 | { | |
679 | asection *s; | |
680 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
681 | struct wildcard_list *sec1 = ptr->handler_data[1]; | |
682 | struct wildcard_list *wildsec2 = ptr->handler_data[2]; | |
683 | struct wildcard_list *wildsec3 = ptr->handler_data[3]; | |
684 | bfd_boolean multiple_sections_found; | |
685 | asection *s0 = find_section (file, sec0, &multiple_sections_found), *s1; | |
686 | ||
687 | if (multiple_sections_found) | |
688 | { | |
689 | walk_wild_section_general (ptr, file, callback, data); | |
690 | return; | |
691 | } | |
692 | ||
693 | s1 = find_section (file, sec1, &multiple_sections_found); | |
694 | if (multiple_sections_found) | |
695 | { | |
696 | walk_wild_section_general (ptr, file, callback, data); | |
697 | return; | |
698 | } | |
699 | ||
700 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
701 | { | |
702 | if (s == s0) | |
703 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
704 | else | |
705 | if (s == s1) | |
706 | walk_wild_consider_section (ptr, file, s, sec1, callback, data); | |
707 | else | |
708 | { | |
709 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
710 | bfd_boolean skip = !match_simple_wild (wildsec2->spec.name, | |
711 | sname); | |
712 | ||
713 | if (!skip) | |
714 | walk_wild_consider_section (ptr, file, s, wildsec2, callback, | |
715 | data); | |
716 | else | |
717 | { | |
718 | skip = !match_simple_wild (wildsec3->spec.name, sname); | |
719 | if (!skip) | |
720 | walk_wild_consider_section (ptr, file, s, wildsec3, | |
721 | callback, data); | |
722 | } | |
723 | } | |
724 | } | |
725 | } | |
726 | ||
727 | static void | |
728 | walk_wild_section (lang_wild_statement_type *ptr, | |
729 | lang_input_statement_type *file, | |
730 | callback_t callback, | |
731 | void *data) | |
732 | { | |
66be1055 | 733 | if (file->flags.just_syms) |
72223188 JJ |
734 | return; |
735 | ||
736 | (*ptr->walk_wild_section_handler) (ptr, file, callback, data); | |
737 | } | |
738 | ||
739 | /* Returns TRUE when name1 is a wildcard spec that might match | |
740 | something name2 can match. We're conservative: we return FALSE | |
741 | only if the prefixes of name1 and name2 are different up to the | |
742 | first wildcard character. */ | |
743 | ||
744 | static bfd_boolean | |
745 | wild_spec_can_overlap (const char *name1, const char *name2) | |
746 | { | |
747 | size_t prefix1_len = strcspn (name1, "?*["); | |
748 | size_t prefix2_len = strcspn (name2, "?*["); | |
749 | size_t min_prefix_len; | |
750 | ||
751 | /* Note that if there is no wildcard character, then we treat the | |
752 | terminating 0 as part of the prefix. Thus ".text" won't match | |
753 | ".text." or ".text.*", for example. */ | |
754 | if (name1[prefix1_len] == '\0') | |
755 | prefix1_len++; | |
756 | if (name2[prefix2_len] == '\0') | |
757 | prefix2_len++; | |
758 | ||
759 | min_prefix_len = prefix1_len < prefix2_len ? prefix1_len : prefix2_len; | |
760 | ||
761 | return memcmp (name1, name2, min_prefix_len) == 0; | |
762 | } | |
763 | ||
764 | /* Select specialized code to handle various kinds of wildcard | |
765 | statements. */ | |
766 | ||
767 | static void | |
768 | analyze_walk_wild_section_handler (lang_wild_statement_type *ptr) | |
769 | { | |
770 | int sec_count = 0; | |
771 | int wild_name_count = 0; | |
772 | struct wildcard_list *sec; | |
773 | int signature; | |
774 | int data_counter; | |
775 | ||
776 | ptr->walk_wild_section_handler = walk_wild_section_general; | |
7544697a AM |
777 | ptr->handler_data[0] = NULL; |
778 | ptr->handler_data[1] = NULL; | |
779 | ptr->handler_data[2] = NULL; | |
780 | ptr->handler_data[3] = NULL; | |
e6f2cbf5 | 781 | ptr->tree = NULL; |
72223188 JJ |
782 | |
783 | /* Count how many wildcard_specs there are, and how many of those | |
784 | actually use wildcards in the name. Also, bail out if any of the | |
785 | wildcard names are NULL. (Can this actually happen? | |
786 | walk_wild_section used to test for it.) And bail out if any | |
787 | of the wildcards are more complex than a simple string | |
788 | ending in a single '*'. */ | |
789 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
790 | { | |
791 | ++sec_count; | |
792 | if (sec->spec.name == NULL) | |
793 | return; | |
794 | if (wildcardp (sec->spec.name)) | |
795 | { | |
796 | ++wild_name_count; | |
797 | if (!is_simple_wild (sec->spec.name)) | |
798 | return; | |
799 | } | |
800 | } | |
801 | ||
802 | /* The zero-spec case would be easy to optimize but it doesn't | |
803 | happen in practice. Likewise, more than 4 specs doesn't | |
804 | happen in practice. */ | |
805 | if (sec_count == 0 || sec_count > 4) | |
806 | return; | |
807 | ||
808 | /* Check that no two specs can match the same section. */ | |
809 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
810 | { | |
811 | struct wildcard_list *sec2; | |
812 | for (sec2 = sec->next; sec2 != NULL; sec2 = sec2->next) | |
813 | { | |
814 | if (wild_spec_can_overlap (sec->spec.name, sec2->spec.name)) | |
815 | return; | |
816 | } | |
817 | } | |
818 | ||
819 | signature = (sec_count << 8) + wild_name_count; | |
820 | switch (signature) | |
821 | { | |
822 | case 0x0100: | |
823 | ptr->walk_wild_section_handler = walk_wild_section_specs1_wild0; | |
824 | break; | |
825 | case 0x0101: | |
826 | ptr->walk_wild_section_handler = walk_wild_section_specs1_wild1; | |
827 | break; | |
828 | case 0x0201: | |
829 | ptr->walk_wild_section_handler = walk_wild_section_specs2_wild1; | |
830 | break; | |
831 | case 0x0302: | |
832 | ptr->walk_wild_section_handler = walk_wild_section_specs3_wild2; | |
833 | break; | |
834 | case 0x0402: | |
835 | ptr->walk_wild_section_handler = walk_wild_section_specs4_wild2; | |
836 | break; | |
837 | default: | |
838 | return; | |
839 | } | |
840 | ||
841 | /* Now fill the data array with pointers to the specs, first the | |
842 | specs with non-wildcard names, then the specs with wildcard | |
843 | names. It's OK to process the specs in different order from the | |
844 | given order, because we've already determined that no section | |
845 | will match more than one spec. */ | |
846 | data_counter = 0; | |
847 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
848 | if (!wildcardp (sec->spec.name)) | |
849 | ptr->handler_data[data_counter++] = sec; | |
850 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
851 | if (wildcardp (sec->spec.name)) | |
852 | ptr->handler_data[data_counter++] = sec; | |
853 | } | |
854 | ||
4dec4d4e RH |
855 | /* Handle a wild statement for a single file F. */ |
856 | ||
857 | static void | |
1579bae1 AM |
858 | walk_wild_file (lang_wild_statement_type *s, |
859 | lang_input_statement_type *f, | |
860 | callback_t callback, | |
861 | void *data) | |
4dec4d4e RH |
862 | { |
863 | if (f->the_bfd == NULL | |
864 | || ! bfd_check_format (f->the_bfd, bfd_archive)) | |
b6bf44ba | 865 | walk_wild_section (s, f, callback, data); |
4dec4d4e RH |
866 | else |
867 | { | |
868 | bfd *member; | |
869 | ||
870 | /* This is an archive file. We must map each member of the | |
871 | archive separately. */ | |
1579bae1 | 872 | member = bfd_openr_next_archived_file (f->the_bfd, NULL); |
4dec4d4e RH |
873 | while (member != NULL) |
874 | { | |
875 | /* When lookup_name is called, it will call the add_symbols | |
876 | entry point for the archive. For each element of the | |
877 | archive which is included, BFD will call ldlang_add_file, | |
878 | which will set the usrdata field of the member to the | |
879 | lang_input_statement. */ | |
880 | if (member->usrdata != NULL) | |
881 | { | |
1e9cc1c2 NC |
882 | walk_wild_section (s, |
883 | (lang_input_statement_type *) member->usrdata, | |
884 | callback, data); | |
4dec4d4e RH |
885 | } |
886 | ||
887 | member = bfd_openr_next_archived_file (f->the_bfd, member); | |
888 | } | |
889 | } | |
890 | } | |
891 | ||
892 | static void | |
1579bae1 | 893 | walk_wild (lang_wild_statement_type *s, callback_t callback, void *data) |
4dec4d4e | 894 | { |
b6bf44ba | 895 | const char *file_spec = s->filename; |
97407faf | 896 | char *p; |
b6bf44ba AM |
897 | |
898 | if (file_spec == NULL) | |
4dec4d4e RH |
899 | { |
900 | /* Perform the iteration over all files in the list. */ | |
e50d8076 | 901 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 902 | { |
b6bf44ba | 903 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
904 | } |
905 | } | |
97407faf AM |
906 | else if ((p = archive_path (file_spec)) != NULL) |
907 | { | |
908 | LANG_FOR_EACH_INPUT_STATEMENT (f) | |
909 | { | |
967928e9 AM |
910 | if (input_statement_is_archive_path (file_spec, p, f)) |
911 | walk_wild_file (s, f, callback, data); | |
97407faf AM |
912 | } |
913 | } | |
b6bf44ba | 914 | else if (wildcardp (file_spec)) |
4dec4d4e | 915 | { |
e50d8076 | 916 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 917 | { |
68bbb9f7 | 918 | if (fnmatch (file_spec, f->filename, 0) == 0) |
b6bf44ba | 919 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
920 | } |
921 | } | |
922 | else | |
923 | { | |
e50d8076 NC |
924 | lang_input_statement_type *f; |
925 | ||
4dec4d4e | 926 | /* Perform the iteration over a single file. */ |
b6bf44ba | 927 | f = lookup_name (file_spec); |
6770ec8c | 928 | if (f) |
b6bf44ba | 929 | walk_wild_file (s, f, callback, data); |
4dec4d4e | 930 | } |
5f992e62 AM |
931 | } |
932 | ||
08da4cac | 933 | /* lang_for_each_statement walks the parse tree and calls the provided |
8658f989 AM |
934 | function for each node, except those inside output section statements |
935 | with constraint set to -1. */ | |
252b5132 | 936 | |
8658f989 | 937 | void |
1579bae1 AM |
938 | lang_for_each_statement_worker (void (*func) (lang_statement_union_type *), |
939 | lang_statement_union_type *s) | |
252b5132 | 940 | { |
1579bae1 | 941 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
942 | { |
943 | func (s); | |
944 | ||
945 | switch (s->header.type) | |
946 | { | |
947 | case lang_constructors_statement_enum: | |
948 | lang_for_each_statement_worker (func, constructor_list.head); | |
949 | break; | |
950 | case lang_output_section_statement_enum: | |
8658f989 AM |
951 | if (s->output_section_statement.constraint != -1) |
952 | lang_for_each_statement_worker | |
953 | (func, s->output_section_statement.children.head); | |
252b5132 RH |
954 | break; |
955 | case lang_wild_statement_enum: | |
6feb9908 AM |
956 | lang_for_each_statement_worker (func, |
957 | s->wild_statement.children.head); | |
252b5132 RH |
958 | break; |
959 | case lang_group_statement_enum: | |
960 | lang_for_each_statement_worker (func, | |
961 | s->group_statement.children.head); | |
962 | break; | |
963 | case lang_data_statement_enum: | |
964 | case lang_reloc_statement_enum: | |
965 | case lang_object_symbols_statement_enum: | |
966 | case lang_output_statement_enum: | |
967 | case lang_target_statement_enum: | |
968 | case lang_input_section_enum: | |
969 | case lang_input_statement_enum: | |
970 | case lang_assignment_statement_enum: | |
971 | case lang_padding_statement_enum: | |
972 | case lang_address_statement_enum: | |
973 | case lang_fill_statement_enum: | |
53d25da6 | 974 | case lang_insert_statement_enum: |
252b5132 RH |
975 | break; |
976 | default: | |
977 | FAIL (); | |
978 | break; | |
979 | } | |
980 | } | |
981 | } | |
982 | ||
983 | void | |
1579bae1 | 984 | lang_for_each_statement (void (*func) (lang_statement_union_type *)) |
252b5132 | 985 | { |
08da4cac | 986 | lang_for_each_statement_worker (func, statement_list.head); |
252b5132 RH |
987 | } |
988 | ||
989 | /*----------------------------------------------------------------------*/ | |
08da4cac | 990 | |
252b5132 | 991 | void |
1579bae1 | 992 | lang_list_init (lang_statement_list_type *list) |
252b5132 | 993 | { |
1579bae1 | 994 | list->head = NULL; |
252b5132 RH |
995 | list->tail = &list->head; |
996 | } | |
997 | ||
bde18da4 AM |
998 | void |
999 | push_stat_ptr (lang_statement_list_type *new_ptr) | |
1000 | { | |
1001 | if (stat_save_ptr >= stat_save + sizeof (stat_save) / sizeof (stat_save[0])) | |
1002 | abort (); | |
1003 | *stat_save_ptr++ = stat_ptr; | |
1004 | stat_ptr = new_ptr; | |
1005 | } | |
1006 | ||
1007 | void | |
1008 | pop_stat_ptr (void) | |
1009 | { | |
1010 | if (stat_save_ptr <= stat_save) | |
1011 | abort (); | |
1012 | stat_ptr = *--stat_save_ptr; | |
1013 | } | |
1014 | ||
08da4cac | 1015 | /* Build a new statement node for the parse tree. */ |
252b5132 | 1016 | |
08da4cac | 1017 | static lang_statement_union_type * |
1579bae1 AM |
1018 | new_statement (enum statement_enum type, |
1019 | size_t size, | |
1020 | lang_statement_list_type *list) | |
252b5132 | 1021 | { |
d3ce72d0 | 1022 | lang_statement_union_type *new_stmt; |
252b5132 | 1023 | |
d3ce72d0 NC |
1024 | new_stmt = (lang_statement_union_type *) stat_alloc (size); |
1025 | new_stmt->header.type = type; | |
1026 | new_stmt->header.next = NULL; | |
1027 | lang_statement_append (list, new_stmt, &new_stmt->header.next); | |
1028 | return new_stmt; | |
252b5132 RH |
1029 | } |
1030 | ||
08da4cac KH |
1031 | /* Build a new input file node for the language. There are several |
1032 | ways in which we treat an input file, eg, we only look at symbols, | |
1033 | or prefix it with a -l etc. | |
252b5132 | 1034 | |
08da4cac | 1035 | We can be supplied with requests for input files more than once; |
396a2467 | 1036 | they may, for example be split over several lines like foo.o(.text) |
d1778b88 | 1037 | foo.o(.data) etc, so when asked for a file we check that we haven't |
08da4cac | 1038 | got it already so we don't duplicate the bfd. */ |
252b5132 | 1039 | |
252b5132 | 1040 | static lang_input_statement_type * |
1579bae1 AM |
1041 | new_afile (const char *name, |
1042 | lang_input_file_enum_type file_type, | |
1043 | const char *target, | |
1044 | bfd_boolean add_to_list) | |
252b5132 RH |
1045 | { |
1046 | lang_input_statement_type *p; | |
1047 | ||
66be1055 AM |
1048 | lang_has_input_file = TRUE; |
1049 | ||
252b5132 | 1050 | if (add_to_list) |
d3ce72d0 | 1051 | p = (lang_input_statement_type *) new_stat (lang_input_statement, stat_ptr); |
252b5132 RH |
1052 | else |
1053 | { | |
d3ce72d0 NC |
1054 | p = (lang_input_statement_type *) |
1055 | stat_alloc (sizeof (lang_input_statement_type)); | |
bd4d42c1 | 1056 | p->header.type = lang_input_statement_enum; |
252b5132 RH |
1057 | p->header.next = NULL; |
1058 | } | |
1059 | ||
66be1055 AM |
1060 | memset (&p->the_bfd, 0, |
1061 | sizeof (*p) - offsetof (lang_input_statement_type, the_bfd)); | |
252b5132 | 1062 | p->target = target; |
66be1055 AM |
1063 | p->flags.dynamic = input_flags.dynamic; |
1064 | p->flags.add_DT_NEEDED_for_dynamic = input_flags.add_DT_NEEDED_for_dynamic; | |
1065 | p->flags.add_DT_NEEDED_for_regular = input_flags.add_DT_NEEDED_for_regular; | |
1066 | p->flags.whole_archive = input_flags.whole_archive; | |
f4a23d42 | 1067 | p->flags.sysrooted = input_flags.sysrooted; |
bcb674cf RS |
1068 | |
1069 | if (file_type == lang_input_file_is_l_enum | |
1070 | && name[0] == ':' && name[1] != '\0') | |
1071 | { | |
1072 | file_type = lang_input_file_is_search_file_enum; | |
1073 | name = name + 1; | |
1074 | } | |
1075 | ||
252b5132 RH |
1076 | switch (file_type) |
1077 | { | |
1078 | case lang_input_file_is_symbols_only_enum: | |
1079 | p->filename = name; | |
252b5132 | 1080 | p->local_sym_name = name; |
66be1055 AM |
1081 | p->flags.real = TRUE; |
1082 | p->flags.just_syms = TRUE; | |
252b5132 RH |
1083 | break; |
1084 | case lang_input_file_is_fake_enum: | |
1085 | p->filename = name; | |
252b5132 | 1086 | p->local_sym_name = name; |
252b5132 RH |
1087 | break; |
1088 | case lang_input_file_is_l_enum: | |
252b5132 | 1089 | p->filename = name; |
ff7a0acf | 1090 | p->local_sym_name = concat ("-l", name, (const char *) NULL); |
66be1055 AM |
1091 | p->flags.maybe_archive = TRUE; |
1092 | p->flags.real = TRUE; | |
1093 | p->flags.search_dirs = TRUE; | |
252b5132 RH |
1094 | break; |
1095 | case lang_input_file_is_marker_enum: | |
1096 | p->filename = name; | |
252b5132 | 1097 | p->local_sym_name = name; |
66be1055 | 1098 | p->flags.search_dirs = TRUE; |
252b5132 RH |
1099 | break; |
1100 | case lang_input_file_is_search_file_enum: | |
1101 | p->filename = name; | |
252b5132 | 1102 | p->local_sym_name = name; |
66be1055 AM |
1103 | p->flags.real = TRUE; |
1104 | p->flags.search_dirs = TRUE; | |
252b5132 RH |
1105 | break; |
1106 | case lang_input_file_is_file_enum: | |
1107 | p->filename = name; | |
252b5132 | 1108 | p->local_sym_name = name; |
66be1055 | 1109 | p->flags.real = TRUE; |
252b5132 RH |
1110 | break; |
1111 | default: | |
1112 | FAIL (); | |
1113 | } | |
c4b78195 | 1114 | |
252b5132 RH |
1115 | lang_statement_append (&input_file_chain, |
1116 | (lang_statement_union_type *) p, | |
1117 | &p->next_real_file); | |
1118 | return p; | |
1119 | } | |
1120 | ||
1121 | lang_input_statement_type * | |
1579bae1 AM |
1122 | lang_add_input_file (const char *name, |
1123 | lang_input_file_enum_type file_type, | |
1124 | const char *target) | |
252b5132 | 1125 | { |
b34976b6 | 1126 | return new_afile (name, file_type, target, TRUE); |
252b5132 RH |
1127 | } |
1128 | ||
409d7240 | 1129 | struct out_section_hash_entry |
750877ba L |
1130 | { |
1131 | struct bfd_hash_entry root; | |
409d7240 | 1132 | lang_statement_union_type s; |
750877ba L |
1133 | }; |
1134 | ||
1135 | /* The hash table. */ | |
1136 | ||
409d7240 | 1137 | static struct bfd_hash_table output_section_statement_table; |
750877ba | 1138 | |
384a9dda | 1139 | /* Support routines for the hash table used by lang_output_section_find, |
750877ba L |
1140 | initialize the table, fill in an entry and remove the table. */ |
1141 | ||
1142 | static struct bfd_hash_entry * | |
329c1c86 | 1143 | output_section_statement_newfunc (struct bfd_hash_entry *entry, |
409d7240 AM |
1144 | struct bfd_hash_table *table, |
1145 | const char *string) | |
750877ba | 1146 | { |
384a9dda | 1147 | lang_output_section_statement_type **nextp; |
409d7240 | 1148 | struct out_section_hash_entry *ret; |
384a9dda AM |
1149 | |
1150 | if (entry == NULL) | |
1151 | { | |
1e9cc1c2 NC |
1152 | entry = (struct bfd_hash_entry *) bfd_hash_allocate (table, |
1153 | sizeof (*ret)); | |
384a9dda AM |
1154 | if (entry == NULL) |
1155 | return entry; | |
1156 | } | |
1157 | ||
1158 | entry = bfd_hash_newfunc (entry, table, string); | |
1159 | if (entry == NULL) | |
1160 | return entry; | |
1161 | ||
409d7240 AM |
1162 | ret = (struct out_section_hash_entry *) entry; |
1163 | memset (&ret->s, 0, sizeof (ret->s)); | |
1164 | ret->s.header.type = lang_output_section_statement_enum; | |
1165 | ret->s.output_section_statement.subsection_alignment = -1; | |
1166 | ret->s.output_section_statement.section_alignment = -1; | |
1167 | ret->s.output_section_statement.block_value = 1; | |
1168 | lang_list_init (&ret->s.output_section_statement.children); | |
1169 | lang_statement_append (stat_ptr, &ret->s, &ret->s.header.next); | |
384a9dda | 1170 | |
218868ba AM |
1171 | /* For every output section statement added to the list, except the |
1172 | first one, lang_output_section_statement.tail points to the "next" | |
1173 | field of the last element of the list. */ | |
1174 | if (lang_output_section_statement.head != NULL) | |
409d7240 AM |
1175 | ret->s.output_section_statement.prev |
1176 | = ((lang_output_section_statement_type *) | |
1177 | ((char *) lang_output_section_statement.tail | |
1178 | - offsetof (lang_output_section_statement_type, next))); | |
218868ba | 1179 | |
384a9dda AM |
1180 | /* GCC's strict aliasing rules prevent us from just casting the |
1181 | address, so we store the pointer in a variable and cast that | |
1182 | instead. */ | |
409d7240 | 1183 | nextp = &ret->s.output_section_statement.next; |
384a9dda | 1184 | lang_statement_append (&lang_output_section_statement, |
409d7240 | 1185 | &ret->s, |
384a9dda AM |
1186 | (lang_statement_union_type **) nextp); |
1187 | return &ret->root; | |
750877ba L |
1188 | } |
1189 | ||
1190 | static void | |
409d7240 | 1191 | output_section_statement_table_init (void) |
750877ba | 1192 | { |
409d7240 AM |
1193 | if (!bfd_hash_table_init_n (&output_section_statement_table, |
1194 | output_section_statement_newfunc, | |
1195 | sizeof (struct out_section_hash_entry), | |
66eb6687 | 1196 | 61)) |
384a9dda | 1197 | einfo (_("%P%F: can not create hash table: %E\n")); |
750877ba L |
1198 | } |
1199 | ||
1200 | static void | |
409d7240 | 1201 | output_section_statement_table_free (void) |
750877ba | 1202 | { |
409d7240 | 1203 | bfd_hash_table_free (&output_section_statement_table); |
750877ba L |
1204 | } |
1205 | ||
08da4cac KH |
1206 | /* Build enough state so that the parser can build its tree. */ |
1207 | ||
252b5132 | 1208 | void |
1579bae1 | 1209 | lang_init (void) |
252b5132 RH |
1210 | { |
1211 | obstack_begin (&stat_obstack, 1000); | |
1212 | ||
1213 | stat_ptr = &statement_list; | |
1214 | ||
409d7240 | 1215 | output_section_statement_table_init (); |
750877ba | 1216 | |
252b5132 RH |
1217 | lang_list_init (stat_ptr); |
1218 | ||
1219 | lang_list_init (&input_file_chain); | |
1220 | lang_list_init (&lang_output_section_statement); | |
1221 | lang_list_init (&file_chain); | |
1579bae1 AM |
1222 | first_file = lang_add_input_file (NULL, lang_input_file_is_marker_enum, |
1223 | NULL); | |
08da4cac | 1224 | abs_output_section = |
66c103b7 | 1225 | lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME, 0, TRUE); |
252b5132 RH |
1226 | |
1227 | abs_output_section->bfd_section = bfd_abs_section_ptr; | |
420e579c HPN |
1228 | |
1229 | /* The value "3" is ad-hoc, somewhat related to the expected number of | |
1230 | DEFINED expressions in a linker script. For most default linker | |
1231 | scripts, there are none. Why a hash table then? Well, it's somewhat | |
1232 | simpler to re-use working machinery than using a linked list in terms | |
1233 | of code-complexity here in ld, besides the initialization which just | |
1234 | looks like other code here. */ | |
688c58f3 | 1235 | if (!bfd_hash_table_init_n (&lang_definedness_table, |
66eb6687 AM |
1236 | lang_definedness_newfunc, |
1237 | sizeof (struct lang_definedness_hash_entry), | |
1238 | 3)) | |
384a9dda | 1239 | einfo (_("%P%F: can not create hash table: %E\n")); |
252b5132 RH |
1240 | } |
1241 | ||
750877ba L |
1242 | void |
1243 | lang_finish (void) | |
1244 | { | |
409d7240 | 1245 | output_section_statement_table_free (); |
750877ba L |
1246 | } |
1247 | ||
252b5132 | 1248 | /*---------------------------------------------------------------------- |
08da4cac KH |
1249 | A region is an area of memory declared with the |
1250 | MEMORY { name:org=exp, len=exp ... } | |
1251 | syntax. | |
252b5132 | 1252 | |
08da4cac | 1253 | We maintain a list of all the regions here. |
252b5132 | 1254 | |
08da4cac | 1255 | If no regions are specified in the script, then the default is used |
a747ee4d NC |
1256 | which is created when looked up to be the entire data space. |
1257 | ||
1258 | If create is true we are creating a region inside a MEMORY block. | |
1259 | In this case it is probably an error to create a region that has | |
1260 | already been created. If we are not inside a MEMORY block it is | |
1261 | dubious to use an undeclared region name (except DEFAULT_MEMORY_REGION) | |
4a93e180 | 1262 | and so we issue a warning. |
1e0061d2 | 1263 | |
4a93e180 NC |
1264 | Each region has at least one name. The first name is either |
1265 | DEFAULT_MEMORY_REGION or the name given in the MEMORY block. You can add | |
1266 | alias names to an existing region within a script with | |
1267 | REGION_ALIAS (alias, region_name). Each name corresponds to at most one | |
1268 | region. */ | |
252b5132 RH |
1269 | |
1270 | static lang_memory_region_type *lang_memory_region_list; | |
6feb9908 AM |
1271 | static lang_memory_region_type **lang_memory_region_list_tail |
1272 | = &lang_memory_region_list; | |
252b5132 RH |
1273 | |
1274 | lang_memory_region_type * | |
a747ee4d | 1275 | lang_memory_region_lookup (const char *const name, bfd_boolean create) |
252b5132 | 1276 | { |
4a93e180 NC |
1277 | lang_memory_region_name *n; |
1278 | lang_memory_region_type *r; | |
d3ce72d0 | 1279 | lang_memory_region_type *new_region; |
252b5132 | 1280 | |
9f88b410 RS |
1281 | /* NAME is NULL for LMA memspecs if no region was specified. */ |
1282 | if (name == NULL) | |
1283 | return NULL; | |
1284 | ||
4a93e180 NC |
1285 | for (r = lang_memory_region_list; r != NULL; r = r->next) |
1286 | for (n = &r->name_list; n != NULL; n = n->next) | |
1287 | if (strcmp (n->name, name) == 0) | |
1288 | { | |
1289 | if (create) | |
1290 | einfo (_("%P:%S: warning: redeclaration of memory region `%s'\n"), | |
dab69f68 | 1291 | NULL, name); |
4a93e180 NC |
1292 | return r; |
1293 | } | |
252b5132 | 1294 | |
a747ee4d | 1295 | if (!create && strcmp (name, DEFAULT_MEMORY_REGION)) |
dab69f68 AM |
1296 | einfo (_("%P:%S: warning: memory region `%s' not declared\n"), |
1297 | NULL, name); | |
a747ee4d | 1298 | |
d3ce72d0 NC |
1299 | new_region = (lang_memory_region_type *) |
1300 | stat_alloc (sizeof (lang_memory_region_type)); | |
252b5132 | 1301 | |
d3ce72d0 NC |
1302 | new_region->name_list.name = xstrdup (name); |
1303 | new_region->name_list.next = NULL; | |
1304 | new_region->next = NULL; | |
1305 | new_region->origin = 0; | |
1306 | new_region->length = ~(bfd_size_type) 0; | |
1307 | new_region->current = 0; | |
1308 | new_region->last_os = NULL; | |
1309 | new_region->flags = 0; | |
1310 | new_region->not_flags = 0; | |
1311 | new_region->had_full_message = FALSE; | |
252b5132 | 1312 | |
d3ce72d0 NC |
1313 | *lang_memory_region_list_tail = new_region; |
1314 | lang_memory_region_list_tail = &new_region->next; | |
66e28d60 | 1315 | |
d3ce72d0 | 1316 | return new_region; |
252b5132 RH |
1317 | } |
1318 | ||
4a93e180 NC |
1319 | void |
1320 | lang_memory_region_alias (const char * alias, const char * region_name) | |
1321 | { | |
1322 | lang_memory_region_name * n; | |
1323 | lang_memory_region_type * r; | |
1324 | lang_memory_region_type * region; | |
1325 | ||
1326 | /* The default region must be unique. This ensures that it is not necessary | |
1327 | to iterate through the name list if someone wants the check if a region is | |
1328 | the default memory region. */ | |
1329 | if (strcmp (region_name, DEFAULT_MEMORY_REGION) == 0 | |
1330 | || strcmp (alias, DEFAULT_MEMORY_REGION) == 0) | |
dab69f68 | 1331 | einfo (_("%F%P:%S: error: alias for default memory region\n"), NULL); |
4a93e180 NC |
1332 | |
1333 | /* Look for the target region and check if the alias is not already | |
1334 | in use. */ | |
1335 | region = NULL; | |
1336 | for (r = lang_memory_region_list; r != NULL; r = r->next) | |
1337 | for (n = &r->name_list; n != NULL; n = n->next) | |
1338 | { | |
1339 | if (region == NULL && strcmp (n->name, region_name) == 0) | |
1340 | region = r; | |
1341 | if (strcmp (n->name, alias) == 0) | |
1342 | einfo (_("%F%P:%S: error: redefinition of memory region " | |
1343 | "alias `%s'\n"), | |
dab69f68 | 1344 | NULL, alias); |
4a93e180 NC |
1345 | } |
1346 | ||
1347 | /* Check if the target region exists. */ | |
1348 | if (region == NULL) | |
1349 | einfo (_("%F%P:%S: error: memory region `%s' " | |
1350 | "for alias `%s' does not exist\n"), | |
dab69f68 | 1351 | NULL, region_name, alias); |
4a93e180 NC |
1352 | |
1353 | /* Add alias to region name list. */ | |
1e9cc1c2 | 1354 | n = (lang_memory_region_name *) stat_alloc (sizeof (lang_memory_region_name)); |
4a93e180 NC |
1355 | n->name = xstrdup (alias); |
1356 | n->next = region->name_list.next; | |
1357 | region->name_list.next = n; | |
1358 | } | |
1359 | ||
5f992e62 | 1360 | static lang_memory_region_type * |
4a93e180 | 1361 | lang_memory_default (asection * section) |
252b5132 RH |
1362 | { |
1363 | lang_memory_region_type *p; | |
1364 | ||
1365 | flagword sec_flags = section->flags; | |
1366 | ||
1367 | /* Override SEC_DATA to mean a writable section. */ | |
1368 | if ((sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE)) == SEC_ALLOC) | |
1369 | sec_flags |= SEC_DATA; | |
1370 | ||
1579bae1 | 1371 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
252b5132 RH |
1372 | { |
1373 | if ((p->flags & sec_flags) != 0 | |
1374 | && (p->not_flags & sec_flags) == 0) | |
1375 | { | |
1376 | return p; | |
1377 | } | |
1378 | } | |
a747ee4d | 1379 | return lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE); |
252b5132 RH |
1380 | } |
1381 | ||
d127ecce AM |
1382 | /* Find or create an output_section_statement with the given NAME. |
1383 | If CONSTRAINT is non-zero match one with that constraint, otherwise | |
1384 | match any non-negative constraint. If CREATE, always make a | |
1385 | new output_section_statement for SPECIAL CONSTRAINT. */ | |
1386 | ||
384a9dda | 1387 | lang_output_section_statement_type * |
d127ecce | 1388 | lang_output_section_statement_lookup (const char *name, |
66c103b7 AM |
1389 | int constraint, |
1390 | bfd_boolean create) | |
252b5132 | 1391 | { |
409d7240 | 1392 | struct out_section_hash_entry *entry; |
252b5132 | 1393 | |
409d7240 AM |
1394 | entry = ((struct out_section_hash_entry *) |
1395 | bfd_hash_lookup (&output_section_statement_table, name, | |
66c103b7 | 1396 | create, FALSE)); |
384a9dda AM |
1397 | if (entry == NULL) |
1398 | { | |
66c103b7 AM |
1399 | if (create) |
1400 | einfo (_("%P%F: failed creating section `%s': %E\n"), name); | |
384a9dda AM |
1401 | return NULL; |
1402 | } | |
252b5132 | 1403 | |
409d7240 | 1404 | if (entry->s.output_section_statement.name != NULL) |
252b5132 | 1405 | { |
384a9dda AM |
1406 | /* We have a section of this name, but it might not have the correct |
1407 | constraint. */ | |
66c103b7 | 1408 | struct out_section_hash_entry *last_ent; |
66c103b7 | 1409 | |
d127ecce | 1410 | name = entry->s.output_section_statement.name; |
8a99a385 AM |
1411 | if (create && constraint == SPECIAL) |
1412 | /* Not traversing to the end reverses the order of the second | |
1413 | and subsequent SPECIAL sections in the hash table chain, | |
1414 | but that shouldn't matter. */ | |
1415 | last_ent = entry; | |
1416 | else | |
1417 | do | |
1418 | { | |
d127ecce AM |
1419 | if (constraint == entry->s.output_section_statement.constraint |
1420 | || (constraint == 0 | |
1421 | && entry->s.output_section_statement.constraint >= 0)) | |
8a99a385 AM |
1422 | return &entry->s.output_section_statement; |
1423 | last_ent = entry; | |
1424 | entry = (struct out_section_hash_entry *) entry->root.next; | |
1425 | } | |
1426 | while (entry != NULL | |
d127ecce | 1427 | && name == entry->s.output_section_statement.name); |
252b5132 | 1428 | |
66c103b7 AM |
1429 | if (!create) |
1430 | return NULL; | |
1431 | ||
409d7240 AM |
1432 | entry |
1433 | = ((struct out_section_hash_entry *) | |
1434 | output_section_statement_newfunc (NULL, | |
1435 | &output_section_statement_table, | |
1436 | name)); | |
750877ba | 1437 | if (entry == NULL) |
384a9dda AM |
1438 | { |
1439 | einfo (_("%P%F: failed creating section `%s': %E\n"), name); | |
1440 | return NULL; | |
1441 | } | |
1442 | entry->root = last_ent->root; | |
1443 | last_ent->root.next = &entry->root; | |
252b5132 | 1444 | } |
384a9dda | 1445 | |
409d7240 AM |
1446 | entry->s.output_section_statement.name = name; |
1447 | entry->s.output_section_statement.constraint = constraint; | |
1448 | return &entry->s.output_section_statement; | |
252b5132 RH |
1449 | } |
1450 | ||
d127ecce AM |
1451 | /* Find the next output_section_statement with the same name as OS. |
1452 | If CONSTRAINT is non-zero, find one with that constraint otherwise | |
1453 | match any non-negative constraint. */ | |
1454 | ||
1455 | lang_output_section_statement_type * | |
1456 | next_matching_output_section_statement (lang_output_section_statement_type *os, | |
1457 | int constraint) | |
1458 | { | |
1459 | /* All output_section_statements are actually part of a | |
1460 | struct out_section_hash_entry. */ | |
1461 | struct out_section_hash_entry *entry = (struct out_section_hash_entry *) | |
1462 | ((char *) os | |
1463 | - offsetof (struct out_section_hash_entry, s.output_section_statement)); | |
1464 | const char *name = os->name; | |
1465 | ||
1466 | ASSERT (name == entry->root.string); | |
1467 | do | |
1468 | { | |
1469 | entry = (struct out_section_hash_entry *) entry->root.next; | |
1470 | if (entry == NULL | |
1471 | || name != entry->s.output_section_statement.name) | |
1472 | return NULL; | |
1473 | } | |
1474 | while (constraint != entry->s.output_section_statement.constraint | |
1475 | && (constraint != 0 | |
1476 | || entry->s.output_section_statement.constraint < 0)); | |
1477 | ||
1478 | return &entry->s.output_section_statement; | |
1479 | } | |
1480 | ||
afd7a018 AM |
1481 | /* A variant of lang_output_section_find used by place_orphan. |
1482 | Returns the output statement that should precede a new output | |
1483 | statement for SEC. If an exact match is found on certain flags, | |
1484 | sets *EXACT too. */ | |
1485 | ||
1486 | lang_output_section_statement_type * | |
1487 | lang_output_section_find_by_flags (const asection *sec, | |
390fbbf1 AM |
1488 | lang_output_section_statement_type **exact, |
1489 | lang_match_sec_type_func match_type) | |
afd7a018 AM |
1490 | { |
1491 | lang_output_section_statement_type *first, *look, *found; | |
1492 | flagword flags; | |
1493 | ||
1494 | /* We know the first statement on this list is *ABS*. May as well | |
1495 | skip it. */ | |
1496 | first = &lang_output_section_statement.head->output_section_statement; | |
1497 | first = first->next; | |
1498 | ||
1499 | /* First try for an exact match. */ | |
1500 | found = NULL; | |
1501 | for (look = first; look; look = look->next) | |
1502 | { | |
1503 | flags = look->flags; | |
1504 | if (look->bfd_section != NULL) | |
ecca9871 L |
1505 | { |
1506 | flags = look->bfd_section->flags; | |
f13a99db AM |
1507 | if (match_type && !match_type (link_info.output_bfd, |
1508 | look->bfd_section, | |
390fbbf1 | 1509 | sec->owner, sec)) |
ecca9871 L |
1510 | continue; |
1511 | } | |
afd7a018 AM |
1512 | flags ^= sec->flags; |
1513 | if (!(flags & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
1514 | | SEC_CODE | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
1515 | found = look; | |
1516 | } | |
1517 | if (found != NULL) | |
1518 | { | |
390fbbf1 AM |
1519 | if (exact != NULL) |
1520 | *exact = found; | |
afd7a018 AM |
1521 | return found; |
1522 | } | |
1523 | ||
07890c07 AM |
1524 | if ((sec->flags & SEC_CODE) != 0 |
1525 | && (sec->flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1526 | { |
1527 | /* Try for a rw code section. */ | |
1528 | for (look = first; look; look = look->next) | |
1529 | { | |
1530 | flags = look->flags; | |
1531 | if (look->bfd_section != NULL) | |
ecca9871 L |
1532 | { |
1533 | flags = look->bfd_section->flags; | |
f13a99db AM |
1534 | if (match_type && !match_type (link_info.output_bfd, |
1535 | look->bfd_section, | |
390fbbf1 | 1536 | sec->owner, sec)) |
ecca9871 L |
1537 | continue; |
1538 | } | |
afd7a018 AM |
1539 | flags ^= sec->flags; |
1540 | if (!(flags & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1541 | | SEC_CODE | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
1542 | found = look; | |
1543 | } | |
afd7a018 | 1544 | } |
07890c07 AM |
1545 | else if ((sec->flags & (SEC_READONLY | SEC_THREAD_LOCAL)) != 0 |
1546 | && (sec->flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1547 | { |
1548 | /* .rodata can go after .text, .sdata2 after .rodata. */ | |
1549 | for (look = first; look; look = look->next) | |
1550 | { | |
1551 | flags = look->flags; | |
1552 | if (look->bfd_section != NULL) | |
ecca9871 L |
1553 | { |
1554 | flags = look->bfd_section->flags; | |
f13a99db AM |
1555 | if (match_type && !match_type (link_info.output_bfd, |
1556 | look->bfd_section, | |
390fbbf1 | 1557 | sec->owner, sec)) |
ecca9871 L |
1558 | continue; |
1559 | } | |
afd7a018 AM |
1560 | flags ^= sec->flags; |
1561 | if (!(flags & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
6de6a7fe AM |
1562 | | SEC_READONLY | SEC_SMALL_DATA)) |
1563 | || (!(flags & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1564 | | SEC_READONLY)) | |
1565 | && !(look->flags & SEC_SMALL_DATA)) | |
1566 | || (!(flags & (SEC_THREAD_LOCAL | SEC_ALLOC)) | |
1567 | && (look->flags & SEC_THREAD_LOCAL) | |
1568 | && (!(flags & SEC_LOAD) | |
1569 | || (look->flags & SEC_LOAD)))) | |
afd7a018 AM |
1570 | found = look; |
1571 | } | |
afd7a018 | 1572 | } |
07890c07 AM |
1573 | else if ((sec->flags & SEC_SMALL_DATA) != 0 |
1574 | && (sec->flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1575 | { |
1576 | /* .sdata goes after .data, .sbss after .sdata. */ | |
1577 | for (look = first; look; look = look->next) | |
1578 | { | |
1579 | flags = look->flags; | |
1580 | if (look->bfd_section != NULL) | |
ecca9871 L |
1581 | { |
1582 | flags = look->bfd_section->flags; | |
f13a99db AM |
1583 | if (match_type && !match_type (link_info.output_bfd, |
1584 | look->bfd_section, | |
390fbbf1 | 1585 | sec->owner, sec)) |
ecca9871 L |
1586 | continue; |
1587 | } | |
afd7a018 AM |
1588 | flags ^= sec->flags; |
1589 | if (!(flags & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1590 | | SEC_THREAD_LOCAL)) | |
1591 | || ((look->flags & SEC_SMALL_DATA) | |
1592 | && !(sec->flags & SEC_HAS_CONTENTS))) | |
1593 | found = look; | |
1594 | } | |
afd7a018 | 1595 | } |
07890c07 AM |
1596 | else if ((sec->flags & SEC_HAS_CONTENTS) != 0 |
1597 | && (sec->flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1598 | { |
1599 | /* .data goes after .rodata. */ | |
1600 | for (look = first; look; look = look->next) | |
1601 | { | |
1602 | flags = look->flags; | |
1603 | if (look->bfd_section != NULL) | |
ecca9871 L |
1604 | { |
1605 | flags = look->bfd_section->flags; | |
f13a99db AM |
1606 | if (match_type && !match_type (link_info.output_bfd, |
1607 | look->bfd_section, | |
390fbbf1 | 1608 | sec->owner, sec)) |
ecca9871 L |
1609 | continue; |
1610 | } | |
afd7a018 AM |
1611 | flags ^= sec->flags; |
1612 | if (!(flags & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1613 | | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
1614 | found = look; | |
1615 | } | |
afd7a018 | 1616 | } |
07890c07 | 1617 | else if ((sec->flags & SEC_ALLOC) != 0) |
afd7a018 | 1618 | { |
07890c07 | 1619 | /* .bss goes after any other alloc section. */ |
390fbbf1 | 1620 | for (look = first; look; look = look->next) |
ecca9871 | 1621 | { |
390fbbf1 AM |
1622 | flags = look->flags; |
1623 | if (look->bfd_section != NULL) | |
1624 | { | |
1625 | flags = look->bfd_section->flags; | |
f13a99db AM |
1626 | if (match_type && !match_type (link_info.output_bfd, |
1627 | look->bfd_section, | |
390fbbf1 AM |
1628 | sec->owner, sec)) |
1629 | continue; | |
1630 | } | |
1631 | flags ^= sec->flags; | |
1632 | if (!(flags & SEC_ALLOC)) | |
1633 | found = look; | |
ecca9871 | 1634 | } |
afd7a018 | 1635 | } |
07890c07 AM |
1636 | else |
1637 | { | |
1638 | /* non-alloc go last. */ | |
1639 | for (look = first; look; look = look->next) | |
1640 | { | |
1641 | flags = look->flags; | |
1642 | if (look->bfd_section != NULL) | |
1643 | flags = look->bfd_section->flags; | |
1644 | flags ^= sec->flags; | |
1645 | if (!(flags & SEC_DEBUGGING)) | |
1646 | found = look; | |
1647 | } | |
1648 | return found; | |
1649 | } | |
afd7a018 | 1650 | |
390fbbf1 AM |
1651 | if (found || !match_type) |
1652 | return found; | |
1653 | ||
1654 | return lang_output_section_find_by_flags (sec, NULL, NULL); | |
afd7a018 AM |
1655 | } |
1656 | ||
1657 | /* Find the last output section before given output statement. | |
1658 | Used by place_orphan. */ | |
1659 | ||
1660 | static asection * | |
1661 | output_prev_sec_find (lang_output_section_statement_type *os) | |
1662 | { | |
afd7a018 AM |
1663 | lang_output_section_statement_type *lookup; |
1664 | ||
218868ba | 1665 | for (lookup = os->prev; lookup != NULL; lookup = lookup->prev) |
afd7a018 | 1666 | { |
66c103b7 | 1667 | if (lookup->constraint < 0) |
afd7a018 | 1668 | continue; |
afd7a018 AM |
1669 | |
1670 | if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL) | |
218868ba | 1671 | return lookup->bfd_section; |
afd7a018 AM |
1672 | } |
1673 | ||
1674 | return NULL; | |
1675 | } | |
1676 | ||
53d25da6 AM |
1677 | /* Look for a suitable place for a new output section statement. The |
1678 | idea is to skip over anything that might be inside a SECTIONS {} | |
1679 | statement in a script, before we find another output section | |
1680 | statement. Assignments to "dot" before an output section statement | |
0fa4d7cf AM |
1681 | are assumed to belong to it, except in two cases; The first |
1682 | assignment to dot, and assignments before non-alloc sections. | |
1683 | Otherwise we might put an orphan before . = . + SIZEOF_HEADERS or | |
1684 | similar assignments that set the initial address, or we might | |
1685 | insert non-alloc note sections among assignments setting end of | |
1686 | image symbols. */ | |
53d25da6 AM |
1687 | |
1688 | static lang_statement_union_type ** | |
1689 | insert_os_after (lang_output_section_statement_type *after) | |
1690 | { | |
1691 | lang_statement_union_type **where; | |
1692 | lang_statement_union_type **assign = NULL; | |
1693 | bfd_boolean ignore_first; | |
1694 | ||
1695 | ignore_first | |
1696 | = after == &lang_output_section_statement.head->output_section_statement; | |
1697 | ||
1698 | for (where = &after->header.next; | |
1699 | *where != NULL; | |
1700 | where = &(*where)->header.next) | |
1701 | { | |
1702 | switch ((*where)->header.type) | |
1703 | { | |
1704 | case lang_assignment_statement_enum: | |
1705 | if (assign == NULL) | |
1706 | { | |
1707 | lang_assignment_statement_type *ass; | |
1708 | ||
1709 | ass = &(*where)->assignment_statement; | |
1710 | if (ass->exp->type.node_class != etree_assert | |
1711 | && ass->exp->assign.dst[0] == '.' | |
1712 | && ass->exp->assign.dst[1] == 0 | |
1713 | && !ignore_first) | |
1714 | assign = where; | |
1715 | } | |
1716 | ignore_first = FALSE; | |
1717 | continue; | |
1718 | case lang_wild_statement_enum: | |
1719 | case lang_input_section_enum: | |
1720 | case lang_object_symbols_statement_enum: | |
1721 | case lang_fill_statement_enum: | |
1722 | case lang_data_statement_enum: | |
1723 | case lang_reloc_statement_enum: | |
1724 | case lang_padding_statement_enum: | |
1725 | case lang_constructors_statement_enum: | |
1726 | assign = NULL; | |
1727 | continue; | |
1728 | case lang_output_section_statement_enum: | |
1729 | if (assign != NULL) | |
0fa4d7cf AM |
1730 | { |
1731 | asection *s = (*where)->output_section_statement.bfd_section; | |
1732 | ||
249b2a84 L |
1733 | if (s == NULL |
1734 | || s->map_head.s == NULL | |
1735 | || (s->flags & SEC_ALLOC) != 0) | |
0fa4d7cf AM |
1736 | where = assign; |
1737 | } | |
53d25da6 AM |
1738 | break; |
1739 | case lang_input_statement_enum: | |
1740 | case lang_address_statement_enum: | |
1741 | case lang_target_statement_enum: | |
1742 | case lang_output_statement_enum: | |
1743 | case lang_group_statement_enum: | |
1744 | case lang_insert_statement_enum: | |
1745 | continue; | |
1746 | } | |
1747 | break; | |
1748 | } | |
1749 | ||
1750 | return where; | |
1751 | } | |
1752 | ||
afd7a018 | 1753 | lang_output_section_statement_type * |
7b986e99 | 1754 | lang_insert_orphan (asection *s, |
afd7a018 | 1755 | const char *secname, |
8a99a385 | 1756 | int constraint, |
afd7a018 AM |
1757 | lang_output_section_statement_type *after, |
1758 | struct orphan_save *place, | |
1759 | etree_type *address, | |
1760 | lang_statement_list_type *add_child) | |
1761 | { | |
afd7a018 AM |
1762 | lang_statement_list_type add; |
1763 | const char *ps; | |
afd7a018 AM |
1764 | lang_output_section_statement_type *os; |
1765 | lang_output_section_statement_type **os_tail; | |
1766 | ||
afd7a018 AM |
1767 | /* If we have found an appropriate place for the output section |
1768 | statements for this orphan, add them to our own private list, | |
1769 | inserting them later into the global statement list. */ | |
1770 | if (after != NULL) | |
1771 | { | |
bde18da4 AM |
1772 | lang_list_init (&add); |
1773 | push_stat_ptr (&add); | |
afd7a018 AM |
1774 | } |
1775 | ||
011aa75f AM |
1776 | if (link_info.relocatable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0) |
1777 | address = exp_intop (0); | |
1778 | ||
1779 | os_tail = ((lang_output_section_statement_type **) | |
1780 | lang_output_section_statement.tail); | |
1e9cc1c2 NC |
1781 | os = lang_enter_output_section_statement (secname, address, normal_section, |
1782 | NULL, NULL, NULL, constraint); | |
011aa75f | 1783 | |
afd7a018 | 1784 | ps = NULL; |
011aa75f | 1785 | if (config.build_constructors && *os_tail == os) |
afd7a018 AM |
1786 | { |
1787 | /* If the name of the section is representable in C, then create | |
1788 | symbols to mark the start and the end of the section. */ | |
1789 | for (ps = secname; *ps != '\0'; ps++) | |
1790 | if (! ISALNUM ((unsigned char) *ps) && *ps != '_') | |
1791 | break; | |
1792 | if (*ps == '\0') | |
1793 | { | |
1794 | char *symname; | |
1795 | etree_type *e_align; | |
1796 | ||
1797 | symname = (char *) xmalloc (ps - secname + sizeof "__start_" + 1); | |
f13a99db | 1798 | symname[0] = bfd_get_symbol_leading_char (link_info.output_bfd); |
afd7a018 AM |
1799 | sprintf (symname + (symname[0] != 0), "__start_%s", secname); |
1800 | e_align = exp_unop (ALIGN_K, | |
1801 | exp_intop ((bfd_vma) 1 << s->alignment_power)); | |
2e57b2af | 1802 | lang_add_assignment (exp_assign (".", e_align)); |
34711ca3 | 1803 | lang_add_assignment (exp_provide (symname, |
011aa75f AM |
1804 | exp_unop (ABSOLUTE, |
1805 | exp_nameop (NAME, ".")), | |
34711ca3 | 1806 | FALSE)); |
afd7a018 AM |
1807 | } |
1808 | } | |
1809 | ||
afd7a018 AM |
1810 | if (add_child == NULL) |
1811 | add_child = &os->children; | |
7b986e99 | 1812 | lang_add_section (add_child, s, os); |
afd7a018 | 1813 | |
f77c3948 DJ |
1814 | if (after && (s->flags & (SEC_LOAD | SEC_ALLOC)) != 0) |
1815 | { | |
1816 | const char *region = (after->region | |
1817 | ? after->region->name_list.name | |
1818 | : DEFAULT_MEMORY_REGION); | |
1819 | const char *lma_region = (after->lma_region | |
1820 | ? after->lma_region->name_list.name | |
1821 | : NULL); | |
1822 | lang_leave_output_section_statement (NULL, region, after->phdrs, | |
1823 | lma_region); | |
1824 | } | |
1825 | else | |
1826 | lang_leave_output_section_statement (NULL, DEFAULT_MEMORY_REGION, NULL, | |
1827 | NULL); | |
afd7a018 | 1828 | |
011aa75f | 1829 | if (ps != NULL && *ps == '\0') |
afd7a018 AM |
1830 | { |
1831 | char *symname; | |
1832 | ||
afd7a018 | 1833 | symname = (char *) xmalloc (ps - secname + sizeof "__stop_" + 1); |
f13a99db | 1834 | symname[0] = bfd_get_symbol_leading_char (link_info.output_bfd); |
afd7a018 | 1835 | sprintf (symname + (symname[0] != 0), "__stop_%s", secname); |
34711ca3 AM |
1836 | lang_add_assignment (exp_provide (symname, |
1837 | exp_nameop (NAME, "."), | |
1838 | FALSE)); | |
afd7a018 AM |
1839 | } |
1840 | ||
1841 | /* Restore the global list pointer. */ | |
1842 | if (after != NULL) | |
bde18da4 | 1843 | pop_stat_ptr (); |
afd7a018 AM |
1844 | |
1845 | if (after != NULL && os->bfd_section != NULL) | |
1846 | { | |
5daa8fe7 | 1847 | asection *snew, *as; |
afd7a018 AM |
1848 | |
1849 | snew = os->bfd_section; | |
1850 | ||
1851 | /* Shuffle the bfd section list to make the output file look | |
1852 | neater. This is really only cosmetic. */ | |
1853 | if (place->section == NULL | |
1854 | && after != (&lang_output_section_statement.head | |
1855 | ->output_section_statement)) | |
1856 | { | |
1857 | asection *bfd_section = after->bfd_section; | |
1858 | ||
1859 | /* If the output statement hasn't been used to place any input | |
1860 | sections (and thus doesn't have an output bfd_section), | |
1861 | look for the closest prior output statement having an | |
1862 | output section. */ | |
1863 | if (bfd_section == NULL) | |
1864 | bfd_section = output_prev_sec_find (after); | |
1865 | ||
1866 | if (bfd_section != NULL && bfd_section != snew) | |
1867 | place->section = &bfd_section->next; | |
1868 | } | |
1869 | ||
1870 | if (place->section == NULL) | |
f13a99db | 1871 | place->section = &link_info.output_bfd->sections; |
afd7a018 | 1872 | |
5daa8fe7 | 1873 | as = *place->section; |
5e542ba7 MS |
1874 | |
1875 | if (!as) | |
329c1c86 AM |
1876 | { |
1877 | /* Put the section at the end of the list. */ | |
5e542ba7 MS |
1878 | |
1879 | /* Unlink the section. */ | |
f13a99db | 1880 | bfd_section_list_remove (link_info.output_bfd, snew); |
5e542ba7 MS |
1881 | |
1882 | /* Now tack it back on in the right place. */ | |
f13a99db | 1883 | bfd_section_list_append (link_info.output_bfd, snew); |
329c1c86 | 1884 | } |
5e542ba7 | 1885 | else if (as != snew && as->prev != snew) |
5daa8fe7 L |
1886 | { |
1887 | /* Unlink the section. */ | |
f13a99db | 1888 | bfd_section_list_remove (link_info.output_bfd, snew); |
afd7a018 | 1889 | |
5daa8fe7 | 1890 | /* Now tack it back on in the right place. */ |
f13a99db | 1891 | bfd_section_list_insert_before (link_info.output_bfd, as, snew); |
5daa8fe7 | 1892 | } |
afd7a018 AM |
1893 | |
1894 | /* Save the end of this list. Further ophans of this type will | |
1895 | follow the one we've just added. */ | |
1896 | place->section = &snew->next; | |
1897 | ||
1898 | /* The following is non-cosmetic. We try to put the output | |
1899 | statements in some sort of reasonable order here, because they | |
1900 | determine the final load addresses of the orphan sections. | |
1901 | In addition, placing output statements in the wrong order may | |
1902 | require extra segments. For instance, given a typical | |
1903 | situation of all read-only sections placed in one segment and | |
1904 | following that a segment containing all the read-write | |
1905 | sections, we wouldn't want to place an orphan read/write | |
1906 | section before or amongst the read-only ones. */ | |
1907 | if (add.head != NULL) | |
1908 | { | |
1909 | lang_output_section_statement_type *newly_added_os; | |
1910 | ||
1911 | if (place->stmt == NULL) | |
1912 | { | |
53d25da6 | 1913 | lang_statement_union_type **where = insert_os_after (after); |
afd7a018 AM |
1914 | |
1915 | *add.tail = *where; | |
1916 | *where = add.head; | |
1917 | ||
1918 | place->os_tail = &after->next; | |
1919 | } | |
1920 | else | |
1921 | { | |
1922 | /* Put it after the last orphan statement we added. */ | |
1923 | *add.tail = *place->stmt; | |
1924 | *place->stmt = add.head; | |
1925 | } | |
1926 | ||
1927 | /* Fix the global list pointer if we happened to tack our | |
1928 | new list at the tail. */ | |
bde18da4 AM |
1929 | if (*stat_ptr->tail == add.head) |
1930 | stat_ptr->tail = add.tail; | |
afd7a018 AM |
1931 | |
1932 | /* Save the end of this list. */ | |
1933 | place->stmt = add.tail; | |
1934 | ||
1935 | /* Do the same for the list of output section statements. */ | |
1936 | newly_added_os = *os_tail; | |
1937 | *os_tail = NULL; | |
218868ba AM |
1938 | newly_added_os->prev = (lang_output_section_statement_type *) |
1939 | ((char *) place->os_tail | |
1940 | - offsetof (lang_output_section_statement_type, next)); | |
afd7a018 | 1941 | newly_added_os->next = *place->os_tail; |
218868ba AM |
1942 | if (newly_added_os->next != NULL) |
1943 | newly_added_os->next->prev = newly_added_os; | |
afd7a018 AM |
1944 | *place->os_tail = newly_added_os; |
1945 | place->os_tail = &newly_added_os->next; | |
1946 | ||
1947 | /* Fixing the global list pointer here is a little different. | |
1948 | We added to the list in lang_enter_output_section_statement, | |
1949 | trimmed off the new output_section_statment above when | |
1950 | assigning *os_tail = NULL, but possibly added it back in | |
1951 | the same place when assigning *place->os_tail. */ | |
1952 | if (*os_tail == NULL) | |
1953 | lang_output_section_statement.tail | |
1954 | = (lang_statement_union_type **) os_tail; | |
1955 | } | |
1956 | } | |
1957 | return os; | |
1958 | } | |
1959 | ||
252b5132 | 1960 | static void |
1579bae1 | 1961 | lang_map_flags (flagword flag) |
252b5132 RH |
1962 | { |
1963 | if (flag & SEC_ALLOC) | |
1964 | minfo ("a"); | |
1965 | ||
1966 | if (flag & SEC_CODE) | |
1967 | minfo ("x"); | |
1968 | ||
1969 | if (flag & SEC_READONLY) | |
1970 | minfo ("r"); | |
1971 | ||
1972 | if (flag & SEC_DATA) | |
1973 | minfo ("w"); | |
1974 | ||
1975 | if (flag & SEC_LOAD) | |
1976 | minfo ("l"); | |
1977 | } | |
1978 | ||
1979 | void | |
1579bae1 | 1980 | lang_map (void) |
252b5132 RH |
1981 | { |
1982 | lang_memory_region_type *m; | |
4d4920ec | 1983 | bfd_boolean dis_header_printed = FALSE; |
35835446 | 1984 | bfd *p; |
252b5132 | 1985 | |
4d4920ec EB |
1986 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
1987 | { | |
1988 | asection *s; | |
1989 | ||
1990 | if ((file->the_bfd->flags & (BFD_LINKER_CREATED | DYNAMIC)) != 0 | |
66be1055 | 1991 | || file->flags.just_syms) |
4d4920ec EB |
1992 | continue; |
1993 | ||
1994 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
a14a5de3 | 1995 | if ((s->output_section == NULL |
f13a99db | 1996 | || s->output_section->owner != link_info.output_bfd) |
a14a5de3 | 1997 | && (s->flags & (SEC_LINKER_CREATED | SEC_KEEP)) == 0) |
4d4920ec EB |
1998 | { |
1999 | if (! dis_header_printed) | |
2000 | { | |
2001 | fprintf (config.map_file, _("\nDiscarded input sections\n\n")); | |
2002 | dis_header_printed = TRUE; | |
2003 | } | |
2004 | ||
d64703c6 | 2005 | print_input_section (s, TRUE); |
4d4920ec EB |
2006 | } |
2007 | } | |
2008 | ||
252b5132 RH |
2009 | minfo (_("\nMemory Configuration\n\n")); |
2010 | fprintf (config.map_file, "%-16s %-18s %-18s %s\n", | |
2011 | _("Name"), _("Origin"), _("Length"), _("Attributes")); | |
2012 | ||
1579bae1 | 2013 | for (m = lang_memory_region_list; m != NULL; m = m->next) |
252b5132 RH |
2014 | { |
2015 | char buf[100]; | |
2016 | int len; | |
2017 | ||
4a93e180 | 2018 | fprintf (config.map_file, "%-16s ", m->name_list.name); |
252b5132 RH |
2019 | |
2020 | sprintf_vma (buf, m->origin); | |
2021 | minfo ("0x%s ", buf); | |
2022 | len = strlen (buf); | |
2023 | while (len < 16) | |
2024 | { | |
2025 | print_space (); | |
2026 | ++len; | |
2027 | } | |
2028 | ||
2029 | minfo ("0x%V", m->length); | |
2030 | if (m->flags || m->not_flags) | |
2031 | { | |
2032 | #ifndef BFD64 | |
2033 | minfo (" "); | |
2034 | #endif | |
2035 | if (m->flags) | |
2036 | { | |
2037 | print_space (); | |
2038 | lang_map_flags (m->flags); | |
2039 | } | |
2040 | ||
2041 | if (m->not_flags) | |
2042 | { | |
2043 | minfo (" !"); | |
2044 | lang_map_flags (m->not_flags); | |
2045 | } | |
2046 | } | |
2047 | ||
2048 | print_nl (); | |
2049 | } | |
2050 | ||
2051 | fprintf (config.map_file, _("\nLinker script and memory map\n\n")); | |
2052 | ||
c0f00686 | 2053 | if (! link_info.reduce_memory_overheads) |
35835446 JR |
2054 | { |
2055 | obstack_begin (&map_obstack, 1000); | |
2056 | for (p = link_info.input_bfds; p != (bfd *) NULL; p = p->link_next) | |
2057 | bfd_map_over_sections (p, init_map_userdata, 0); | |
2058 | bfd_link_hash_traverse (link_info.hash, sort_def_symbol, 0); | |
2059 | } | |
a1438fce | 2060 | lang_statement_iteration ++; |
252b5132 RH |
2061 | print_statements (); |
2062 | } | |
2063 | ||
35835446 | 2064 | static void |
967928e9 AM |
2065 | init_map_userdata (bfd *abfd ATTRIBUTE_UNUSED, |
2066 | asection *sec, | |
2067 | void *data ATTRIBUTE_UNUSED) | |
35835446 JR |
2068 | { |
2069 | fat_section_userdata_type *new_data | |
2070 | = ((fat_section_userdata_type *) (stat_alloc | |
2071 | (sizeof (fat_section_userdata_type)))); | |
2072 | ||
2073 | ASSERT (get_userdata (sec) == NULL); | |
2074 | get_userdata (sec) = new_data; | |
2075 | new_data->map_symbol_def_tail = &new_data->map_symbol_def_head; | |
02688209 | 2076 | new_data->map_symbol_def_count = 0; |
35835446 JR |
2077 | } |
2078 | ||
2079 | static bfd_boolean | |
967928e9 AM |
2080 | sort_def_symbol (struct bfd_link_hash_entry *hash_entry, |
2081 | void *info ATTRIBUTE_UNUSED) | |
35835446 JR |
2082 | { |
2083 | if (hash_entry->type == bfd_link_hash_defined | |
2084 | || hash_entry->type == bfd_link_hash_defweak) | |
2085 | { | |
2086 | struct fat_user_section_struct *ud; | |
2087 | struct map_symbol_def *def; | |
2088 | ||
1e9cc1c2 NC |
2089 | ud = (struct fat_user_section_struct *) |
2090 | get_userdata (hash_entry->u.def.section); | |
35835446 JR |
2091 | if (! ud) |
2092 | { | |
2093 | /* ??? What do we have to do to initialize this beforehand? */ | |
2094 | /* The first time we get here is bfd_abs_section... */ | |
2095 | init_map_userdata (0, hash_entry->u.def.section, 0); | |
1e9cc1c2 NC |
2096 | ud = (struct fat_user_section_struct *) |
2097 | get_userdata (hash_entry->u.def.section); | |
35835446 JR |
2098 | } |
2099 | else if (!ud->map_symbol_def_tail) | |
2100 | ud->map_symbol_def_tail = &ud->map_symbol_def_head; | |
afd7a018 | 2101 | |
1e9cc1c2 | 2102 | def = (struct map_symbol_def *) obstack_alloc (&map_obstack, sizeof *def); |
35835446 | 2103 | def->entry = hash_entry; |
76d7af2d | 2104 | *(ud->map_symbol_def_tail) = def; |
35835446 | 2105 | ud->map_symbol_def_tail = &def->next; |
02688209 | 2106 | ud->map_symbol_def_count++; |
35835446 JR |
2107 | } |
2108 | return TRUE; | |
2109 | } | |
2110 | ||
252b5132 RH |
2111 | /* Initialize an output section. */ |
2112 | ||
2113 | static void | |
dfa7b0b8 | 2114 | init_os (lang_output_section_statement_type *s, flagword flags) |
252b5132 | 2115 | { |
252b5132 | 2116 | if (strcmp (s->name, DISCARD_SECTION_NAME) == 0) |
6f9efd97 | 2117 | einfo (_("%P%F: Illegal use of `%s' section\n"), DISCARD_SECTION_NAME); |
252b5132 | 2118 | |
8a99a385 AM |
2119 | if (s->constraint != SPECIAL) |
2120 | s->bfd_section = bfd_get_section_by_name (link_info.output_bfd, s->name); | |
1579bae1 | 2121 | if (s->bfd_section == NULL) |
8a99a385 AM |
2122 | s->bfd_section = bfd_make_section_anyway_with_flags (link_info.output_bfd, |
2123 | s->name, flags); | |
1579bae1 | 2124 | if (s->bfd_section == NULL) |
252b5132 RH |
2125 | { |
2126 | einfo (_("%P%F: output format %s cannot represent section called %s\n"), | |
f13a99db | 2127 | link_info.output_bfd->xvec->name, s->name); |
252b5132 RH |
2128 | } |
2129 | s->bfd_section->output_section = s->bfd_section; | |
252b5132 | 2130 | s->bfd_section->output_offset = 0; |
e0f6802f | 2131 | |
c0f00686 | 2132 | if (!link_info.reduce_memory_overheads) |
72223188 | 2133 | { |
d3ce72d0 NC |
2134 | fat_section_userdata_type *new_userdata = (fat_section_userdata_type *) |
2135 | stat_alloc (sizeof (fat_section_userdata_type)); | |
2136 | memset (new_userdata, 0, sizeof (fat_section_userdata_type)); | |
2137 | get_userdata (s->bfd_section) = new_userdata; | |
72223188 JJ |
2138 | } |
2139 | ||
a431bc2e AM |
2140 | /* If there is a base address, make sure that any sections it might |
2141 | mention are initialized. */ | |
2142 | if (s->addr_tree != NULL) | |
2143 | exp_init_os (s->addr_tree); | |
2144 | ||
2145 | if (s->load_base != NULL) | |
2146 | exp_init_os (s->load_base); | |
2147 | ||
7270c5ed AM |
2148 | /* If supplied an alignment, set it. */ |
2149 | if (s->section_alignment != -1) | |
2150 | s->bfd_section->alignment_power = s->section_alignment; | |
252b5132 RH |
2151 | } |
2152 | ||
2153 | /* Make sure that all output sections mentioned in an expression are | |
2154 | initialized. */ | |
2155 | ||
2156 | static void | |
1579bae1 | 2157 | exp_init_os (etree_type *exp) |
252b5132 RH |
2158 | { |
2159 | switch (exp->type.node_class) | |
2160 | { | |
2161 | case etree_assign: | |
9f4fb502 | 2162 | case etree_provide: |
252b5132 RH |
2163 | exp_init_os (exp->assign.src); |
2164 | break; | |
2165 | ||
2166 | case etree_binary: | |
2167 | exp_init_os (exp->binary.lhs); | |
2168 | exp_init_os (exp->binary.rhs); | |
2169 | break; | |
2170 | ||
2171 | case etree_trinary: | |
2172 | exp_init_os (exp->trinary.cond); | |
2173 | exp_init_os (exp->trinary.lhs); | |
2174 | exp_init_os (exp->trinary.rhs); | |
2175 | break; | |
2176 | ||
b6ca8815 NS |
2177 | case etree_assert: |
2178 | exp_init_os (exp->assert_s.child); | |
2179 | break; | |
afd7a018 | 2180 | |
252b5132 RH |
2181 | case etree_unary: |
2182 | exp_init_os (exp->unary.child); | |
2183 | break; | |
2184 | ||
2185 | case etree_name: | |
2186 | switch (exp->type.node_code) | |
2187 | { | |
2188 | case ADDR: | |
2189 | case LOADADDR: | |
2190 | case SIZEOF: | |
2191 | { | |
2192 | lang_output_section_statement_type *os; | |
2193 | ||
2194 | os = lang_output_section_find (exp->name.name); | |
2195 | if (os != NULL && os->bfd_section == NULL) | |
dfa7b0b8 | 2196 | init_os (os, 0); |
252b5132 RH |
2197 | } |
2198 | } | |
2199 | break; | |
2200 | ||
2201 | default: | |
2202 | break; | |
2203 | } | |
2204 | } | |
9503fd87 | 2205 | \f |
252b5132 | 2206 | static void |
1579bae1 | 2207 | section_already_linked (bfd *abfd, asection *sec, void *data) |
252b5132 | 2208 | { |
1e9cc1c2 | 2209 | lang_input_statement_type *entry = (lang_input_statement_type *) data; |
252b5132 RH |
2210 | |
2211 | /* If we are only reading symbols from this object, then we want to | |
2212 | discard all sections. */ | |
66be1055 | 2213 | if (entry->flags.just_syms) |
252b5132 | 2214 | { |
1449d79b | 2215 | bfd_link_just_syms (abfd, sec, &link_info); |
252b5132 RH |
2216 | return; |
2217 | } | |
2218 | ||
ace66bb2 | 2219 | if (!(abfd->flags & DYNAMIC)) |
c77ec726 | 2220 | bfd_section_already_linked (abfd, sec, &link_info); |
252b5132 RH |
2221 | } |
2222 | \f | |
2223 | /* The wild routines. | |
2224 | ||
2225 | These expand statements like *(.text) and foo.o to a list of | |
2226 | explicit actions, like foo.o(.text), bar.o(.text) and | |
2227 | foo.o(.text, .data). */ | |
2228 | ||
252b5132 RH |
2229 | /* Add SECTION to the output section OUTPUT. Do this by creating a |
2230 | lang_input_section statement which is placed at PTR. FILE is the | |
2231 | input file which holds SECTION. */ | |
2232 | ||
2233 | void | |
1579bae1 AM |
2234 | lang_add_section (lang_statement_list_type *ptr, |
2235 | asection *section, | |
7b986e99 | 2236 | lang_output_section_statement_type *output) |
252b5132 | 2237 | { |
164e712d | 2238 | flagword flags = section->flags; |
ae17ab41 CM |
2239 | struct flag_info *sflag_info = section->section_flag_info; |
2240 | ||
b34976b6 | 2241 | bfd_boolean discard; |
dfa7b0b8 | 2242 | lang_input_section_type *new_section; |
ae17ab41 | 2243 | bfd *abfd = link_info.output_bfd; |
252b5132 | 2244 | |
e49f5022 | 2245 | /* Discard sections marked with SEC_EXCLUDE. */ |
b3096250 | 2246 | discard = (flags & SEC_EXCLUDE) != 0; |
252b5132 RH |
2247 | |
2248 | /* Discard input sections which are assigned to a section named | |
2249 | DISCARD_SECTION_NAME. */ | |
2250 | if (strcmp (output->name, DISCARD_SECTION_NAME) == 0) | |
b34976b6 | 2251 | discard = TRUE; |
252b5132 RH |
2252 | |
2253 | /* Discard debugging sections if we are stripping debugging | |
2254 | information. */ | |
2255 | if ((link_info.strip == strip_debugger || link_info.strip == strip_all) | |
2256 | && (flags & SEC_DEBUGGING) != 0) | |
b34976b6 | 2257 | discard = TRUE; |
252b5132 RH |
2258 | |
2259 | if (discard) | |
2260 | { | |
2261 | if (section->output_section == NULL) | |
2262 | { | |
2263 | /* This prevents future calls from assigning this section. */ | |
2264 | section->output_section = bfd_abs_section_ptr; | |
2265 | } | |
2266 | return; | |
2267 | } | |
2268 | ||
ae17ab41 CM |
2269 | if (sflag_info) |
2270 | { | |
2271 | if (sflag_info->flags_initialized == FALSE) | |
2272 | bfd_lookup_section_flags (&link_info, sflag_info); | |
2273 | ||
2274 | if (sflag_info->only_with_flags != 0 | |
2275 | && sflag_info->not_with_flags != 0 | |
2276 | && ((sflag_info->not_with_flags & flags) != 0 | |
2277 | || (sflag_info->only_with_flags & flags) | |
2278 | != sflag_info->only_with_flags)) | |
2279 | return; | |
2280 | ||
2281 | if (sflag_info->only_with_flags != 0 | |
2282 | && (sflag_info->only_with_flags & flags) | |
2283 | != sflag_info->only_with_flags) | |
2284 | return; | |
2285 | ||
2286 | if (sflag_info->not_with_flags != 0 | |
2287 | && (sflag_info->not_with_flags & flags) != 0) | |
2288 | return; | |
2289 | } | |
2290 | ||
dfa7b0b8 AM |
2291 | if (section->output_section != NULL) |
2292 | return; | |
252b5132 | 2293 | |
dfa7b0b8 AM |
2294 | /* We don't copy the SEC_NEVER_LOAD flag from an input section |
2295 | to an output section, because we want to be able to include a | |
2296 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
2297 | section (I don't know why we want to do this, but we do). | |
2298 | build_link_order in ldwrite.c handles this case by turning | |
2299 | the embedded SEC_NEVER_LOAD section into a fill. */ | |
2300 | flags &= ~ SEC_NEVER_LOAD; | |
8423293d | 2301 | |
dfa7b0b8 AM |
2302 | /* If final link, don't copy the SEC_LINK_ONCE flags, they've |
2303 | already been processed. One reason to do this is that on pe | |
2304 | format targets, .text$foo sections go into .text and it's odd | |
2305 | to see .text with SEC_LINK_ONCE set. */ | |
252b5132 | 2306 | |
dfa7b0b8 | 2307 | if (!link_info.relocatable) |
0814be7d | 2308 | flags &= ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC); |
252b5132 | 2309 | |
dfa7b0b8 AM |
2310 | switch (output->sectype) |
2311 | { | |
2312 | case normal_section: | |
2313 | case overlay_section: | |
2314 | break; | |
2315 | case noalloc_section: | |
2316 | flags &= ~SEC_ALLOC; | |
2317 | break; | |
2318 | case noload_section: | |
2319 | flags &= ~SEC_LOAD; | |
2320 | flags |= SEC_NEVER_LOAD; | |
f4eaaf7f AM |
2321 | /* Unfortunately GNU ld has managed to evolve two different |
2322 | meanings to NOLOAD in scripts. ELF gets a .bss style noload, | |
2323 | alloc, no contents section. All others get a noload, noalloc | |
2324 | section. */ | |
2325 | if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour) | |
2e76e85a | 2326 | flags &= ~SEC_HAS_CONTENTS; |
f4eaaf7f AM |
2327 | else |
2328 | flags &= ~SEC_ALLOC; | |
dfa7b0b8 AM |
2329 | break; |
2330 | } | |
252b5132 | 2331 | |
dfa7b0b8 AM |
2332 | if (output->bfd_section == NULL) |
2333 | init_os (output, flags); | |
252b5132 | 2334 | |
dfa7b0b8 AM |
2335 | /* If SEC_READONLY is not set in the input section, then clear |
2336 | it from the output section. */ | |
2337 | output->bfd_section->flags &= flags | ~SEC_READONLY; | |
252b5132 | 2338 | |
dfa7b0b8 AM |
2339 | if (output->bfd_section->linker_has_input) |
2340 | { | |
2341 | /* Only set SEC_READONLY flag on the first input section. */ | |
2342 | flags &= ~ SEC_READONLY; | |
252b5132 | 2343 | |
f5fa8ca2 | 2344 | /* Keep SEC_MERGE and SEC_STRINGS only if they are the same. */ |
dfa7b0b8 AM |
2345 | if ((output->bfd_section->flags & (SEC_MERGE | SEC_STRINGS)) |
2346 | != (flags & (SEC_MERGE | SEC_STRINGS)) | |
2347 | || ((flags & SEC_MERGE) != 0 | |
2348 | && output->bfd_section->entsize != section->entsize)) | |
f5fa8ca2 | 2349 | { |
afd7a018 | 2350 | output->bfd_section->flags &= ~ (SEC_MERGE | SEC_STRINGS); |
f5fa8ca2 JJ |
2351 | flags &= ~ (SEC_MERGE | SEC_STRINGS); |
2352 | } | |
dfa7b0b8 AM |
2353 | } |
2354 | output->bfd_section->flags |= flags; | |
f5fa8ca2 | 2355 | |
dfa7b0b8 AM |
2356 | if (!output->bfd_section->linker_has_input) |
2357 | { | |
2358 | output->bfd_section->linker_has_input = 1; | |
2359 | /* This must happen after flags have been updated. The output | |
2360 | section may have been created before we saw its first input | |
2361 | section, eg. for a data statement. */ | |
2362 | bfd_init_private_section_data (section->owner, section, | |
2363 | link_info.output_bfd, | |
2364 | output->bfd_section, | |
2365 | &link_info); | |
2366 | if ((flags & SEC_MERGE) != 0) | |
afd7a018 | 2367 | output->bfd_section->entsize = section->entsize; |
dfa7b0b8 | 2368 | } |
f5fa8ca2 | 2369 | |
dfa7b0b8 AM |
2370 | if ((flags & SEC_TIC54X_BLOCK) != 0 |
2371 | && bfd_get_arch (section->owner) == bfd_arch_tic54x) | |
2372 | { | |
2373 | /* FIXME: This value should really be obtained from the bfd... */ | |
2374 | output->block_value = 128; | |
2375 | } | |
252b5132 | 2376 | |
dfa7b0b8 AM |
2377 | if (section->alignment_power > output->bfd_section->alignment_power) |
2378 | output->bfd_section->alignment_power = section->alignment_power; | |
9e41f973 | 2379 | |
dfa7b0b8 | 2380 | section->output_section = output->bfd_section; |
252b5132 | 2381 | |
dfa7b0b8 AM |
2382 | if (!link_info.relocatable |
2383 | && !stripped_excluded_sections) | |
2384 | { | |
2385 | asection *s = output->bfd_section->map_tail.s; | |
2386 | output->bfd_section->map_tail.s = section; | |
2387 | section->map_head.s = NULL; | |
2388 | section->map_tail.s = s; | |
2389 | if (s != NULL) | |
2390 | s->map_head.s = section; | |
2391 | else | |
2392 | output->bfd_section->map_head.s = section; | |
252b5132 | 2393 | } |
dfa7b0b8 AM |
2394 | |
2395 | /* Add a section reference to the list. */ | |
2396 | new_section = new_stat (lang_input_section, ptr); | |
2397 | new_section->section = section; | |
252b5132 RH |
2398 | } |
2399 | ||
2400 | /* Handle wildcard sorting. This returns the lang_input_section which | |
2401 | should follow the one we are going to create for SECTION and FILE, | |
2402 | based on the sorting requirements of WILD. It returns NULL if the | |
2403 | new section should just go at the end of the current list. */ | |
2404 | ||
2405 | static lang_statement_union_type * | |
1579bae1 AM |
2406 | wild_sort (lang_wild_statement_type *wild, |
2407 | struct wildcard_list *sec, | |
2408 | lang_input_statement_type *file, | |
2409 | asection *section) | |
252b5132 | 2410 | { |
252b5132 RH |
2411 | lang_statement_union_type *l; |
2412 | ||
bcaa7b3e L |
2413 | if (!wild->filenames_sorted |
2414 | && (sec == NULL || sec->spec.sorted == none)) | |
252b5132 RH |
2415 | return NULL; |
2416 | ||
bba1a0c0 | 2417 | for (l = wild->children.head; l != NULL; l = l->header.next) |
252b5132 RH |
2418 | { |
2419 | lang_input_section_type *ls; | |
2420 | ||
2421 | if (l->header.type != lang_input_section_enum) | |
2422 | continue; | |
2423 | ls = &l->input_section; | |
2424 | ||
2425 | /* Sorting by filename takes precedence over sorting by section | |
afd7a018 | 2426 | name. */ |
252b5132 RH |
2427 | |
2428 | if (wild->filenames_sorted) | |
2429 | { | |
2430 | const char *fn, *ln; | |
b34976b6 | 2431 | bfd_boolean fa, la; |
252b5132 RH |
2432 | int i; |
2433 | ||
2434 | /* The PE support for the .idata section as generated by | |
afd7a018 AM |
2435 | dlltool assumes that files will be sorted by the name of |
2436 | the archive and then the name of the file within the | |
2437 | archive. */ | |
252b5132 RH |
2438 | |
2439 | if (file->the_bfd != NULL | |
2440 | && bfd_my_archive (file->the_bfd) != NULL) | |
2441 | { | |
2442 | fn = bfd_get_filename (bfd_my_archive (file->the_bfd)); | |
b34976b6 | 2443 | fa = TRUE; |
252b5132 RH |
2444 | } |
2445 | else | |
2446 | { | |
2447 | fn = file->filename; | |
b34976b6 | 2448 | fa = FALSE; |
252b5132 RH |
2449 | } |
2450 | ||
7b986e99 | 2451 | if (bfd_my_archive (ls->section->owner) != NULL) |
252b5132 | 2452 | { |
7b986e99 | 2453 | ln = bfd_get_filename (bfd_my_archive (ls->section->owner)); |
b34976b6 | 2454 | la = TRUE; |
252b5132 RH |
2455 | } |
2456 | else | |
2457 | { | |
7b986e99 | 2458 | ln = ls->section->owner->filename; |
b34976b6 | 2459 | la = FALSE; |
252b5132 RH |
2460 | } |
2461 | ||
42627821 | 2462 | i = filename_cmp (fn, ln); |
252b5132 RH |
2463 | if (i > 0) |
2464 | continue; | |
2465 | else if (i < 0) | |
2466 | break; | |
2467 | ||
2468 | if (fa || la) | |
2469 | { | |
2470 | if (fa) | |
2471 | fn = file->filename; | |
2472 | if (la) | |
7b986e99 | 2473 | ln = ls->section->owner->filename; |
252b5132 | 2474 | |
42627821 | 2475 | i = filename_cmp (fn, ln); |
252b5132 RH |
2476 | if (i > 0) |
2477 | continue; | |
2478 | else if (i < 0) | |
2479 | break; | |
2480 | } | |
2481 | } | |
2482 | ||
2483 | /* Here either the files are not sorted by name, or we are | |
afd7a018 | 2484 | looking at the sections for this file. */ |
252b5132 | 2485 | |
bcaa7b3e | 2486 | if (sec != NULL && sec->spec.sorted != none) |
32124d5b AM |
2487 | if (compare_section (sec->spec.sorted, section, ls->section) < 0) |
2488 | break; | |
252b5132 RH |
2489 | } |
2490 | ||
2491 | return l; | |
2492 | } | |
2493 | ||
2494 | /* Expand a wild statement for a particular FILE. SECTION may be | |
2495 | NULL, in which case it is a wild card. */ | |
2496 | ||
2497 | static void | |
1579bae1 AM |
2498 | output_section_callback (lang_wild_statement_type *ptr, |
2499 | struct wildcard_list *sec, | |
2500 | asection *section, | |
2501 | lang_input_statement_type *file, | |
2502 | void *output) | |
4dec4d4e RH |
2503 | { |
2504 | lang_statement_union_type *before; | |
d0bf826b AM |
2505 | lang_output_section_statement_type *os; |
2506 | ||
2507 | os = (lang_output_section_statement_type *) output; | |
5f992e62 | 2508 | |
b6bf44ba | 2509 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
d0bf826b | 2510 | if (unique_section_p (section, os)) |
b6bf44ba AM |
2511 | return; |
2512 | ||
b6bf44ba | 2513 | before = wild_sort (ptr, sec, file, section); |
5f992e62 | 2514 | |
4dec4d4e RH |
2515 | /* Here BEFORE points to the lang_input_section which |
2516 | should follow the one we are about to add. If BEFORE | |
2517 | is NULL, then the section should just go at the end | |
2518 | of the current list. */ | |
5f992e62 | 2519 | |
4dec4d4e | 2520 | if (before == NULL) |
d0bf826b | 2521 | lang_add_section (&ptr->children, section, os); |
4dec4d4e | 2522 | else |
252b5132 | 2523 | { |
4dec4d4e RH |
2524 | lang_statement_list_type list; |
2525 | lang_statement_union_type **pp; | |
5f992e62 | 2526 | |
4dec4d4e | 2527 | lang_list_init (&list); |
d0bf826b | 2528 | lang_add_section (&list, section, os); |
5f992e62 | 2529 | |
4dec4d4e RH |
2530 | /* If we are discarding the section, LIST.HEAD will |
2531 | be NULL. */ | |
2532 | if (list.head != NULL) | |
252b5132 | 2533 | { |
bba1a0c0 | 2534 | ASSERT (list.head->header.next == NULL); |
5f992e62 | 2535 | |
4dec4d4e RH |
2536 | for (pp = &ptr->children.head; |
2537 | *pp != before; | |
bba1a0c0 | 2538 | pp = &(*pp)->header.next) |
4dec4d4e | 2539 | ASSERT (*pp != NULL); |
5f992e62 | 2540 | |
bba1a0c0 | 2541 | list.head->header.next = *pp; |
4dec4d4e | 2542 | *pp = list.head; |
252b5132 RH |
2543 | } |
2544 | } | |
2545 | } | |
2546 | ||
0841712e JJ |
2547 | /* Check if all sections in a wild statement for a particular FILE |
2548 | are readonly. */ | |
2549 | ||
2550 | static void | |
2551 | check_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED, | |
2552 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
2553 | asection *section, | |
2554 | lang_input_statement_type *file ATTRIBUTE_UNUSED, | |
d0bf826b | 2555 | void *output) |
0841712e | 2556 | { |
d0bf826b AM |
2557 | lang_output_section_statement_type *os; |
2558 | ||
2559 | os = (lang_output_section_statement_type *) output; | |
2560 | ||
0841712e | 2561 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
d0bf826b | 2562 | if (unique_section_p (section, os)) |
0841712e JJ |
2563 | return; |
2564 | ||
6feb9908 | 2565 | if (section->output_section == NULL && (section->flags & SEC_READONLY) == 0) |
d0bf826b | 2566 | os->all_input_readonly = FALSE; |
0841712e JJ |
2567 | } |
2568 | ||
252b5132 RH |
2569 | /* This is passed a file name which must have been seen already and |
2570 | added to the statement tree. We will see if it has been opened | |
2571 | already and had its symbols read. If not then we'll read it. */ | |
2572 | ||
2573 | static lang_input_statement_type * | |
1579bae1 | 2574 | lookup_name (const char *name) |
252b5132 RH |
2575 | { |
2576 | lang_input_statement_type *search; | |
2577 | ||
2578 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
1579bae1 | 2579 | search != NULL; |
252b5132 RH |
2580 | search = (lang_input_statement_type *) search->next_real_file) |
2581 | { | |
0013291d NC |
2582 | /* Use the local_sym_name as the name of the file that has |
2583 | already been loaded as filename might have been transformed | |
2584 | via the search directory lookup mechanism. */ | |
87aa7f19 | 2585 | const char *filename = search->local_sym_name; |
0013291d | 2586 | |
0013291d | 2587 | if (filename != NULL |
42627821 | 2588 | && filename_cmp (filename, name) == 0) |
252b5132 RH |
2589 | break; |
2590 | } | |
2591 | ||
1579bae1 | 2592 | if (search == NULL) |
6feb9908 AM |
2593 | search = new_afile (name, lang_input_file_is_search_file_enum, |
2594 | default_target, FALSE); | |
252b5132 RH |
2595 | |
2596 | /* If we have already added this file, or this file is not real | |
87aa7f19 | 2597 | don't add this file. */ |
66be1055 | 2598 | if (search->flags.loaded || !search->flags.real) |
252b5132 RH |
2599 | return search; |
2600 | ||
1579bae1 | 2601 | if (! load_symbols (search, NULL)) |
6770ec8c | 2602 | return NULL; |
252b5132 RH |
2603 | |
2604 | return search; | |
2605 | } | |
2606 | ||
b58f81ae DJ |
2607 | /* Save LIST as a list of libraries whose symbols should not be exported. */ |
2608 | ||
2609 | struct excluded_lib | |
2610 | { | |
2611 | char *name; | |
2612 | struct excluded_lib *next; | |
2613 | }; | |
2614 | static struct excluded_lib *excluded_libs; | |
2615 | ||
2616 | void | |
2617 | add_excluded_libs (const char *list) | |
2618 | { | |
2619 | const char *p = list, *end; | |
2620 | ||
2621 | while (*p != '\0') | |
2622 | { | |
2623 | struct excluded_lib *entry; | |
2624 | end = strpbrk (p, ",:"); | |
2625 | if (end == NULL) | |
2626 | end = p + strlen (p); | |
1e9cc1c2 | 2627 | entry = (struct excluded_lib *) xmalloc (sizeof (*entry)); |
b58f81ae | 2628 | entry->next = excluded_libs; |
1e9cc1c2 | 2629 | entry->name = (char *) xmalloc (end - p + 1); |
b58f81ae DJ |
2630 | memcpy (entry->name, p, end - p); |
2631 | entry->name[end - p] = '\0'; | |
2632 | excluded_libs = entry; | |
2633 | if (*end == '\0') | |
329c1c86 | 2634 | break; |
b58f81ae DJ |
2635 | p = end + 1; |
2636 | } | |
2637 | } | |
2638 | ||
2639 | static void | |
2640 | check_excluded_libs (bfd *abfd) | |
2641 | { | |
2642 | struct excluded_lib *lib = excluded_libs; | |
2643 | ||
2644 | while (lib) | |
2645 | { | |
2646 | int len = strlen (lib->name); | |
2647 | const char *filename = lbasename (abfd->filename); | |
2648 | ||
2649 | if (strcmp (lib->name, "ALL") == 0) | |
2650 | { | |
2651 | abfd->no_export = TRUE; | |
2652 | return; | |
2653 | } | |
2654 | ||
42627821 | 2655 | if (filename_ncmp (lib->name, filename, len) == 0 |
b58f81ae DJ |
2656 | && (filename[len] == '\0' |
2657 | || (filename[len] == '.' && filename[len + 1] == 'a' | |
2658 | && filename[len + 2] == '\0'))) | |
2659 | { | |
2660 | abfd->no_export = TRUE; | |
2661 | return; | |
2662 | } | |
2663 | ||
2664 | lib = lib->next; | |
2665 | } | |
2666 | } | |
2667 | ||
252b5132 RH |
2668 | /* Get the symbols for an input file. */ |
2669 | ||
e9f53129 | 2670 | bfd_boolean |
1579bae1 AM |
2671 | load_symbols (lang_input_statement_type *entry, |
2672 | lang_statement_list_type *place) | |
252b5132 RH |
2673 | { |
2674 | char **matching; | |
2675 | ||
66be1055 | 2676 | if (entry->flags.loaded) |
b34976b6 | 2677 | return TRUE; |
252b5132 RH |
2678 | |
2679 | ldfile_open_file (entry); | |
2680 | ||
c4b78195 | 2681 | /* Do not process further if the file was missing. */ |
66be1055 | 2682 | if (entry->flags.missing_file) |
c4b78195 NC |
2683 | return TRUE; |
2684 | ||
252b5132 RH |
2685 | if (! bfd_check_format (entry->the_bfd, bfd_archive) |
2686 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
2687 | { | |
2688 | bfd_error_type err; | |
66be1055 | 2689 | struct lang_input_statement_flags save_flags; |
b7a26f91 | 2690 | |
252b5132 | 2691 | err = bfd_get_error (); |
884fb58e NC |
2692 | |
2693 | /* See if the emulation has some special knowledge. */ | |
2694 | if (ldemul_unrecognized_file (entry)) | |
b34976b6 | 2695 | return TRUE; |
884fb58e | 2696 | |
252b5132 RH |
2697 | if (err == bfd_error_file_ambiguously_recognized) |
2698 | { | |
2699 | char **p; | |
2700 | ||
2701 | einfo (_("%B: file not recognized: %E\n"), entry->the_bfd); | |
2702 | einfo (_("%B: matching formats:"), entry->the_bfd); | |
2703 | for (p = matching; *p != NULL; p++) | |
2704 | einfo (" %s", *p); | |
2705 | einfo ("%F\n"); | |
2706 | } | |
2707 | else if (err != bfd_error_file_not_recognized | |
2708 | || place == NULL) | |
967928e9 | 2709 | einfo (_("%F%B: file not recognized: %E\n"), entry->the_bfd); |
b7a26f91 | 2710 | |
252b5132 RH |
2711 | bfd_close (entry->the_bfd); |
2712 | entry->the_bfd = NULL; | |
2713 | ||
252b5132 | 2714 | /* Try to interpret the file as a linker script. */ |
66be1055 | 2715 | save_flags = input_flags; |
252b5132 RH |
2716 | ldfile_open_command_file (entry->filename); |
2717 | ||
bde18da4 | 2718 | push_stat_ptr (place); |
66be1055 AM |
2719 | input_flags.add_DT_NEEDED_for_regular |
2720 | = entry->flags.add_DT_NEEDED_for_regular; | |
2721 | input_flags.add_DT_NEEDED_for_dynamic | |
2722 | = entry->flags.add_DT_NEEDED_for_dynamic; | |
2723 | input_flags.whole_archive = entry->flags.whole_archive; | |
2724 | input_flags.dynamic = entry->flags.dynamic; | |
252b5132 | 2725 | |
b34976b6 | 2726 | ldfile_assumed_script = TRUE; |
252b5132 RH |
2727 | parser_input = input_script; |
2728 | yyparse (); | |
b34976b6 | 2729 | ldfile_assumed_script = FALSE; |
252b5132 | 2730 | |
f4a23d42 AM |
2731 | /* missing_file is sticky. sysrooted will already have been |
2732 | restored when seeing EOF in yyparse, but no harm to restore | |
2733 | again. */ | |
66be1055 AM |
2734 | save_flags.missing_file |= input_flags.missing_file; |
2735 | input_flags = save_flags; | |
bde18da4 | 2736 | pop_stat_ptr (); |
252b5132 | 2737 | |
bde18da4 | 2738 | return TRUE; |
252b5132 RH |
2739 | } |
2740 | ||
2741 | if (ldemul_recognized_file (entry)) | |
b34976b6 | 2742 | return TRUE; |
252b5132 RH |
2743 | |
2744 | /* We don't call ldlang_add_file for an archive. Instead, the | |
2745 | add_symbols entry point will call ldlang_add_file, via the | |
2746 | add_archive_element callback, for each element of the archive | |
2747 | which is used. */ | |
2748 | switch (bfd_get_format (entry->the_bfd)) | |
2749 | { | |
2750 | default: | |
2751 | break; | |
2752 | ||
2753 | case bfd_object: | |
15fc2e13 | 2754 | #ifdef ENABLE_PLUGINS |
66be1055 | 2755 | if (!entry->flags.reload) |
15fc2e13 AM |
2756 | #endif |
2757 | ldlang_add_file (entry); | |
252b5132 RH |
2758 | if (trace_files || trace_file_tries) |
2759 | info_msg ("%I\n", entry); | |
2760 | break; | |
2761 | ||
2762 | case bfd_archive: | |
b58f81ae DJ |
2763 | check_excluded_libs (entry->the_bfd); |
2764 | ||
66be1055 | 2765 | if (entry->flags.whole_archive) |
252b5132 | 2766 | { |
b7a26f91 | 2767 | bfd *member = NULL; |
b34976b6 | 2768 | bfd_boolean loaded = TRUE; |
6770ec8c NC |
2769 | |
2770 | for (;;) | |
252b5132 | 2771 | { |
5d3236ee | 2772 | bfd *subsbfd; |
6770ec8c NC |
2773 | member = bfd_openr_next_archived_file (entry->the_bfd, member); |
2774 | ||
2775 | if (member == NULL) | |
2776 | break; | |
b7a26f91 | 2777 | |
252b5132 | 2778 | if (! bfd_check_format (member, bfd_object)) |
6770ec8c NC |
2779 | { |
2780 | einfo (_("%F%B: member %B in archive is not an object\n"), | |
2781 | entry->the_bfd, member); | |
b34976b6 | 2782 | loaded = FALSE; |
6770ec8c NC |
2783 | } |
2784 | ||
db0ca79f | 2785 | subsbfd = member; |
46105645 AM |
2786 | if (!(*link_info.callbacks |
2787 | ->add_archive_element) (&link_info, member, | |
2788 | "--whole-archive", &subsbfd)) | |
252b5132 | 2789 | abort (); |
6770ec8c | 2790 | |
5d3236ee DK |
2791 | /* Potentially, the add_archive_element hook may have set a |
2792 | substitute BFD for us. */ | |
46105645 | 2793 | if (!bfd_link_add_symbols (subsbfd, &link_info)) |
6770ec8c NC |
2794 | { |
2795 | einfo (_("%F%B: could not read symbols: %E\n"), member); | |
b34976b6 | 2796 | loaded = FALSE; |
6770ec8c | 2797 | } |
252b5132 RH |
2798 | } |
2799 | ||
66be1055 | 2800 | entry->flags.loaded = loaded; |
6770ec8c | 2801 | return loaded; |
252b5132 | 2802 | } |
6770ec8c | 2803 | break; |
252b5132 RH |
2804 | } |
2805 | ||
03bdc404 | 2806 | if (bfd_link_add_symbols (entry->the_bfd, &link_info)) |
66be1055 | 2807 | entry->flags.loaded = TRUE; |
6770ec8c | 2808 | else |
252b5132 RH |
2809 | einfo (_("%F%B: could not read symbols: %E\n"), entry->the_bfd); |
2810 | ||
66be1055 | 2811 | return entry->flags.loaded; |
252b5132 RH |
2812 | } |
2813 | ||
b6bf44ba AM |
2814 | /* Handle a wild statement. S->FILENAME or S->SECTION_LIST or both |
2815 | may be NULL, indicating that it is a wildcard. Separate | |
2816 | lang_input_section statements are created for each part of the | |
2817 | expansion; they are added after the wild statement S. OUTPUT is | |
2818 | the output section. */ | |
252b5132 RH |
2819 | |
2820 | static void | |
1579bae1 AM |
2821 | wild (lang_wild_statement_type *s, |
2822 | const char *target ATTRIBUTE_UNUSED, | |
2823 | lang_output_section_statement_type *output) | |
252b5132 | 2824 | { |
b6bf44ba | 2825 | struct wildcard_list *sec; |
252b5132 | 2826 | |
50c77e5d | 2827 | if (s->handler_data[0] |
329c1c86 | 2828 | && s->handler_data[0]->spec.sorted == by_name |
50c77e5d NC |
2829 | && !s->filenames_sorted) |
2830 | { | |
329c1c86 AM |
2831 | lang_section_bst_type *tree; |
2832 | ||
50c77e5d NC |
2833 | walk_wild (s, output_section_callback_fast, output); |
2834 | ||
e6f2cbf5 | 2835 | tree = s->tree; |
329c1c86 | 2836 | if (tree) |
e6f2cbf5 L |
2837 | { |
2838 | output_section_callback_tree_to_list (s, tree, output); | |
2839 | s->tree = NULL; | |
2840 | } | |
50c77e5d | 2841 | } |
329c1c86 | 2842 | else |
50c77e5d | 2843 | walk_wild (s, output_section_callback, output); |
b6bf44ba | 2844 | |
abe6ac95 AM |
2845 | if (default_common_section == NULL) |
2846 | for (sec = s->section_list; sec != NULL; sec = sec->next) | |
b6bf44ba AM |
2847 | if (sec->spec.name != NULL && strcmp (sec->spec.name, "COMMON") == 0) |
2848 | { | |
2849 | /* Remember the section that common is going to in case we | |
b7a26f91 | 2850 | later get something which doesn't know where to put it. */ |
b6bf44ba | 2851 | default_common_section = output; |
abe6ac95 | 2852 | break; |
b6bf44ba | 2853 | } |
252b5132 RH |
2854 | } |
2855 | ||
b34976b6 | 2856 | /* Return TRUE iff target is the sought target. */ |
08da4cac | 2857 | |
e50d8076 | 2858 | static int |
1579bae1 | 2859 | get_target (const bfd_target *target, void *data) |
e50d8076 | 2860 | { |
1e9cc1c2 | 2861 | const char *sought = (const char *) data; |
5f992e62 | 2862 | |
e50d8076 NC |
2863 | return strcmp (target->name, sought) == 0; |
2864 | } | |
2865 | ||
2866 | /* Like strcpy() but convert to lower case as well. */ | |
08da4cac | 2867 | |
e50d8076 | 2868 | static void |
1579bae1 | 2869 | stricpy (char *dest, char *src) |
e50d8076 NC |
2870 | { |
2871 | char c; | |
5f992e62 | 2872 | |
08da4cac | 2873 | while ((c = *src++) != 0) |
3882b010 | 2874 | *dest++ = TOLOWER (c); |
e50d8076 | 2875 | |
08da4cac | 2876 | *dest = 0; |
e50d8076 NC |
2877 | } |
2878 | ||
396a2467 | 2879 | /* Remove the first occurrence of needle (if any) in haystack |
e50d8076 | 2880 | from haystack. */ |
08da4cac | 2881 | |
e50d8076 | 2882 | static void |
1579bae1 | 2883 | strcut (char *haystack, char *needle) |
e50d8076 NC |
2884 | { |
2885 | haystack = strstr (haystack, needle); | |
5f992e62 | 2886 | |
e50d8076 NC |
2887 | if (haystack) |
2888 | { | |
08da4cac | 2889 | char *src; |
e50d8076 | 2890 | |
08da4cac KH |
2891 | for (src = haystack + strlen (needle); *src;) |
2892 | *haystack++ = *src++; | |
5f992e62 | 2893 | |
08da4cac | 2894 | *haystack = 0; |
e50d8076 NC |
2895 | } |
2896 | } | |
2897 | ||
2898 | /* Compare two target format name strings. | |
2899 | Return a value indicating how "similar" they are. */ | |
08da4cac | 2900 | |
e50d8076 | 2901 | static int |
1579bae1 | 2902 | name_compare (char *first, char *second) |
e50d8076 | 2903 | { |
08da4cac KH |
2904 | char *copy1; |
2905 | char *copy2; | |
2906 | int result; | |
5f992e62 | 2907 | |
1e9cc1c2 NC |
2908 | copy1 = (char *) xmalloc (strlen (first) + 1); |
2909 | copy2 = (char *) xmalloc (strlen (second) + 1); | |
e50d8076 NC |
2910 | |
2911 | /* Convert the names to lower case. */ | |
2912 | stricpy (copy1, first); | |
2913 | stricpy (copy2, second); | |
2914 | ||
1579bae1 | 2915 | /* Remove size and endian strings from the name. */ |
e50d8076 NC |
2916 | strcut (copy1, "big"); |
2917 | strcut (copy1, "little"); | |
2918 | strcut (copy2, "big"); | |
2919 | strcut (copy2, "little"); | |
2920 | ||
2921 | /* Return a value based on how many characters match, | |
2922 | starting from the beginning. If both strings are | |
2923 | the same then return 10 * their length. */ | |
08da4cac KH |
2924 | for (result = 0; copy1[result] == copy2[result]; result++) |
2925 | if (copy1[result] == 0) | |
e50d8076 NC |
2926 | { |
2927 | result *= 10; | |
2928 | break; | |
2929 | } | |
5f992e62 | 2930 | |
e50d8076 NC |
2931 | free (copy1); |
2932 | free (copy2); | |
2933 | ||
2934 | return result; | |
2935 | } | |
2936 | ||
2937 | /* Set by closest_target_match() below. */ | |
08da4cac | 2938 | static const bfd_target *winner; |
e50d8076 NC |
2939 | |
2940 | /* Scan all the valid bfd targets looking for one that has the endianness | |
2941 | requirement that was specified on the command line, and is the nearest | |
2942 | match to the original output target. */ | |
08da4cac | 2943 | |
e50d8076 | 2944 | static int |
1579bae1 | 2945 | closest_target_match (const bfd_target *target, void *data) |
e50d8076 | 2946 | { |
1e9cc1c2 | 2947 | const bfd_target *original = (const bfd_target *) data; |
5f992e62 | 2948 | |
08da4cac KH |
2949 | if (command_line.endian == ENDIAN_BIG |
2950 | && target->byteorder != BFD_ENDIAN_BIG) | |
e50d8076 | 2951 | return 0; |
5f992e62 | 2952 | |
08da4cac KH |
2953 | if (command_line.endian == ENDIAN_LITTLE |
2954 | && target->byteorder != BFD_ENDIAN_LITTLE) | |
e50d8076 NC |
2955 | return 0; |
2956 | ||
2957 | /* Must be the same flavour. */ | |
2958 | if (target->flavour != original->flavour) | |
2959 | return 0; | |
2960 | ||
de7dd2bd | 2961 | /* Ignore generic big and little endian elf vectors. */ |
967928e9 | 2962 | if (strcmp (target->name, "elf32-big") == 0 |
de7dd2bd NC |
2963 | || strcmp (target->name, "elf64-big") == 0 |
2964 | || strcmp (target->name, "elf32-little") == 0 | |
2965 | || strcmp (target->name, "elf64-little") == 0) | |
2966 | return 0; | |
2967 | ||
e50d8076 NC |
2968 | /* If we have not found a potential winner yet, then record this one. */ |
2969 | if (winner == NULL) | |
2970 | { | |
2971 | winner = target; | |
2972 | return 0; | |
2973 | } | |
2974 | ||
2975 | /* Oh dear, we now have two potential candidates for a successful match. | |
4de2d33d | 2976 | Compare their names and choose the better one. */ |
d1778b88 AM |
2977 | if (name_compare (target->name, original->name) |
2978 | > name_compare (winner->name, original->name)) | |
e50d8076 NC |
2979 | winner = target; |
2980 | ||
2981 | /* Keep on searching until wqe have checked them all. */ | |
2982 | return 0; | |
2983 | } | |
2984 | ||
2985 | /* Return the BFD target format of the first input file. */ | |
08da4cac | 2986 | |
e50d8076 | 2987 | static char * |
1579bae1 | 2988 | get_first_input_target (void) |
e50d8076 | 2989 | { |
08da4cac | 2990 | char *target = NULL; |
e50d8076 NC |
2991 | |
2992 | LANG_FOR_EACH_INPUT_STATEMENT (s) | |
2993 | { | |
2994 | if (s->header.type == lang_input_statement_enum | |
66be1055 | 2995 | && s->flags.real) |
e50d8076 NC |
2996 | { |
2997 | ldfile_open_file (s); | |
5f992e62 | 2998 | |
e50d8076 NC |
2999 | if (s->the_bfd != NULL |
3000 | && bfd_check_format (s->the_bfd, bfd_object)) | |
3001 | { | |
3002 | target = bfd_get_target (s->the_bfd); | |
5f992e62 | 3003 | |
e50d8076 NC |
3004 | if (target != NULL) |
3005 | break; | |
3006 | } | |
3007 | } | |
3008 | } | |
5f992e62 | 3009 | |
e50d8076 NC |
3010 | return target; |
3011 | } | |
3012 | ||
599917b8 | 3013 | const char * |
1579bae1 | 3014 | lang_get_output_target (void) |
599917b8 JJ |
3015 | { |
3016 | const char *target; | |
3017 | ||
3018 | /* Has the user told us which output format to use? */ | |
1579bae1 | 3019 | if (output_target != NULL) |
599917b8 JJ |
3020 | return output_target; |
3021 | ||
3022 | /* No - has the current target been set to something other than | |
3023 | the default? */ | |
30824704 | 3024 | if (current_target != default_target && current_target != NULL) |
599917b8 JJ |
3025 | return current_target; |
3026 | ||
3027 | /* No - can we determine the format of the first input file? */ | |
3028 | target = get_first_input_target (); | |
3029 | if (target != NULL) | |
3030 | return target; | |
3031 | ||
3032 | /* Failed - use the default output target. */ | |
3033 | return default_target; | |
3034 | } | |
3035 | ||
252b5132 RH |
3036 | /* Open the output file. */ |
3037 | ||
f13a99db | 3038 | static void |
1579bae1 | 3039 | open_output (const char *name) |
252b5132 | 3040 | { |
599917b8 | 3041 | output_target = lang_get_output_target (); |
5f992e62 | 3042 | |
08da4cac KH |
3043 | /* Has the user requested a particular endianness on the command |
3044 | line? */ | |
e50d8076 NC |
3045 | if (command_line.endian != ENDIAN_UNSET) |
3046 | { | |
08da4cac | 3047 | const bfd_target *target; |
1b69a0bf | 3048 | enum bfd_endian desired_endian; |
e50d8076 NC |
3049 | |
3050 | /* Get the chosen target. */ | |
1579bae1 | 3051 | target = bfd_search_for_target (get_target, (void *) output_target); |
e50d8076 | 3052 | |
c13b1b77 NC |
3053 | /* If the target is not supported, we cannot do anything. */ |
3054 | if (target != NULL) | |
e50d8076 | 3055 | { |
c13b1b77 NC |
3056 | if (command_line.endian == ENDIAN_BIG) |
3057 | desired_endian = BFD_ENDIAN_BIG; | |
e50d8076 | 3058 | else |
c13b1b77 | 3059 | desired_endian = BFD_ENDIAN_LITTLE; |
5f992e62 AM |
3060 | |
3061 | /* See if the target has the wrong endianness. This should | |
3062 | not happen if the linker script has provided big and | |
3063 | little endian alternatives, but some scrips don't do | |
3064 | this. */ | |
c13b1b77 | 3065 | if (target->byteorder != desired_endian) |
e50d8076 | 3066 | { |
c13b1b77 NC |
3067 | /* If it does, then see if the target provides |
3068 | an alternative with the correct endianness. */ | |
3069 | if (target->alternative_target != NULL | |
3070 | && (target->alternative_target->byteorder == desired_endian)) | |
3071 | output_target = target->alternative_target->name; | |
e50d8076 | 3072 | else |
c13b1b77 | 3073 | { |
5f992e62 AM |
3074 | /* Try to find a target as similar as possible to |
3075 | the default target, but which has the desired | |
3076 | endian characteristic. */ | |
1579bae1 AM |
3077 | bfd_search_for_target (closest_target_match, |
3078 | (void *) target); | |
5f992e62 AM |
3079 | |
3080 | /* Oh dear - we could not find any targets that | |
3081 | satisfy our requirements. */ | |
c13b1b77 | 3082 | if (winner == NULL) |
6feb9908 AM |
3083 | einfo (_("%P: warning: could not find any targets" |
3084 | " that match endianness requirement\n")); | |
c13b1b77 NC |
3085 | else |
3086 | output_target = winner->name; | |
3087 | } | |
e50d8076 NC |
3088 | } |
3089 | } | |
252b5132 | 3090 | } |
5f992e62 | 3091 | |
f13a99db | 3092 | link_info.output_bfd = bfd_openw (name, output_target); |
252b5132 | 3093 | |
f13a99db | 3094 | if (link_info.output_bfd == NULL) |
252b5132 RH |
3095 | { |
3096 | if (bfd_get_error () == bfd_error_invalid_target) | |
e50d8076 NC |
3097 | einfo (_("%P%F: target %s not found\n"), output_target); |
3098 | ||
252b5132 RH |
3099 | einfo (_("%P%F: cannot open output file %s: %E\n"), name); |
3100 | } | |
3101 | ||
b34976b6 | 3102 | delete_output_file_on_failure = TRUE; |
252b5132 | 3103 | |
f13a99db | 3104 | if (! bfd_set_format (link_info.output_bfd, bfd_object)) |
252b5132 | 3105 | einfo (_("%P%F:%s: can not make object file: %E\n"), name); |
f13a99db | 3106 | if (! bfd_set_arch_mach (link_info.output_bfd, |
252b5132 RH |
3107 | ldfile_output_architecture, |
3108 | ldfile_output_machine)) | |
3109 | einfo (_("%P%F:%s: can not set architecture: %E\n"), name); | |
3110 | ||
f13a99db | 3111 | link_info.hash = bfd_link_hash_table_create (link_info.output_bfd); |
1579bae1 | 3112 | if (link_info.hash == NULL) |
384a9dda | 3113 | einfo (_("%P%F: can not create hash table: %E\n")); |
252b5132 | 3114 | |
f13a99db | 3115 | bfd_set_gp_size (link_info.output_bfd, g_switch_value); |
252b5132 RH |
3116 | } |
3117 | ||
252b5132 | 3118 | static void |
1579bae1 | 3119 | ldlang_open_output (lang_statement_union_type *statement) |
252b5132 RH |
3120 | { |
3121 | switch (statement->header.type) | |
3122 | { | |
3123 | case lang_output_statement_enum: | |
f13a99db AM |
3124 | ASSERT (link_info.output_bfd == NULL); |
3125 | open_output (statement->output_statement.name); | |
252b5132 | 3126 | ldemul_set_output_arch (); |
1049f94e | 3127 | if (config.magic_demand_paged && !link_info.relocatable) |
f13a99db | 3128 | link_info.output_bfd->flags |= D_PAGED; |
252b5132 | 3129 | else |
f13a99db | 3130 | link_info.output_bfd->flags &= ~D_PAGED; |
252b5132 | 3131 | if (config.text_read_only) |
f13a99db | 3132 | link_info.output_bfd->flags |= WP_TEXT; |
252b5132 | 3133 | else |
f13a99db | 3134 | link_info.output_bfd->flags &= ~WP_TEXT; |
252b5132 | 3135 | if (link_info.traditional_format) |
f13a99db | 3136 | link_info.output_bfd->flags |= BFD_TRADITIONAL_FORMAT; |
252b5132 | 3137 | else |
f13a99db | 3138 | link_info.output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; |
252b5132 RH |
3139 | break; |
3140 | ||
3141 | case lang_target_statement_enum: | |
3142 | current_target = statement->target_statement.target; | |
3143 | break; | |
3144 | default: | |
3145 | break; | |
3146 | } | |
3147 | } | |
3148 | ||
e5caa5e0 AM |
3149 | /* Convert between addresses in bytes and sizes in octets. |
3150 | For currently supported targets, octets_per_byte is always a power | |
3151 | of two, so we can use shifts. */ | |
3152 | #define TO_ADDR(X) ((X) >> opb_shift) | |
3153 | #define TO_SIZE(X) ((X) << opb_shift) | |
3154 | ||
3155 | /* Support the above. */ | |
3156 | static unsigned int opb_shift = 0; | |
3157 | ||
3158 | static void | |
3159 | init_opb (void) | |
3160 | { | |
3161 | unsigned x = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, | |
3162 | ldfile_output_machine); | |
3163 | opb_shift = 0; | |
3164 | if (x > 1) | |
3165 | while ((x & 1) == 0) | |
3166 | { | |
3167 | x >>= 1; | |
3168 | ++opb_shift; | |
3169 | } | |
3170 | ASSERT (x == 1); | |
3171 | } | |
3172 | ||
252b5132 RH |
3173 | /* Open all the input files. */ |
3174 | ||
486329aa AM |
3175 | enum open_bfd_mode |
3176 | { | |
3177 | OPEN_BFD_NORMAL = 0, | |
3178 | OPEN_BFD_FORCE = 1, | |
3179 | OPEN_BFD_RESCAN = 2 | |
3180 | }; | |
9e2278f5 AM |
3181 | #ifdef ENABLE_PLUGINS |
3182 | static lang_input_statement_type *plugin_insert = NULL; | |
3183 | #endif | |
486329aa | 3184 | |
252b5132 | 3185 | static void |
486329aa | 3186 | open_input_bfds (lang_statement_union_type *s, enum open_bfd_mode mode) |
252b5132 | 3187 | { |
1579bae1 | 3188 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
3189 | { |
3190 | switch (s->header.type) | |
3191 | { | |
3192 | case lang_constructors_statement_enum: | |
486329aa | 3193 | open_input_bfds (constructor_list.head, mode); |
252b5132 RH |
3194 | break; |
3195 | case lang_output_section_statement_enum: | |
486329aa | 3196 | open_input_bfds (s->output_section_statement.children.head, mode); |
252b5132 RH |
3197 | break; |
3198 | case lang_wild_statement_enum: | |
08da4cac | 3199 | /* Maybe we should load the file's symbols. */ |
486329aa AM |
3200 | if ((mode & OPEN_BFD_RESCAN) == 0 |
3201 | && s->wild_statement.filename | |
97407faf AM |
3202 | && !wildcardp (s->wild_statement.filename) |
3203 | && !archive_path (s->wild_statement.filename)) | |
4a43e768 | 3204 | lookup_name (s->wild_statement.filename); |
486329aa | 3205 | open_input_bfds (s->wild_statement.children.head, mode); |
252b5132 RH |
3206 | break; |
3207 | case lang_group_statement_enum: | |
3208 | { | |
3209 | struct bfd_link_hash_entry *undefs; | |
3210 | ||
3211 | /* We must continually search the entries in the group | |
08da4cac KH |
3212 | until no new symbols are added to the list of undefined |
3213 | symbols. */ | |
252b5132 RH |
3214 | |
3215 | do | |
3216 | { | |
3217 | undefs = link_info.hash->undefs_tail; | |
486329aa AM |
3218 | open_input_bfds (s->group_statement.children.head, |
3219 | mode | OPEN_BFD_FORCE); | |
252b5132 RH |
3220 | } |
3221 | while (undefs != link_info.hash->undefs_tail); | |
3222 | } | |
3223 | break; | |
3224 | case lang_target_statement_enum: | |
3225 | current_target = s->target_statement.target; | |
3226 | break; | |
3227 | case lang_input_statement_enum: | |
66be1055 | 3228 | if (s->input_statement.flags.real) |
252b5132 | 3229 | { |
bde18da4 | 3230 | lang_statement_union_type **os_tail; |
252b5132 RH |
3231 | lang_statement_list_type add; |
3232 | ||
3233 | s->input_statement.target = current_target; | |
3234 | ||
3235 | /* If we are being called from within a group, and this | |
afd7a018 AM |
3236 | is an archive which has already been searched, then |
3237 | force it to be researched unless the whole archive | |
486329aa AM |
3238 | has been loaded already. Do the same for a rescan. */ |
3239 | if (mode != OPEN_BFD_NORMAL | |
9e2278f5 AM |
3240 | #ifdef ENABLE_PLUGINS |
3241 | && ((mode & OPEN_BFD_RESCAN) == 0 | |
3242 | || plugin_insert == NULL) | |
3243 | #endif | |
66be1055 AM |
3244 | && !s->input_statement.flags.whole_archive |
3245 | && s->input_statement.flags.loaded | |
252b5132 RH |
3246 | && bfd_check_format (s->input_statement.the_bfd, |
3247 | bfd_archive)) | |
66be1055 | 3248 | s->input_statement.flags.loaded = FALSE; |
15fc2e13 AM |
3249 | #ifdef ENABLE_PLUGINS |
3250 | /* When rescanning, reload --as-needed shared libs. */ | |
3251 | else if ((mode & OPEN_BFD_RESCAN) != 0 | |
3252 | && plugin_insert == NULL | |
66be1055 AM |
3253 | && s->input_statement.flags.loaded |
3254 | && s->input_statement.flags.add_DT_NEEDED_for_regular | |
5468810d AM |
3255 | && ((s->input_statement.the_bfd->flags) & DYNAMIC) != 0 |
3256 | && plugin_should_reload (s->input_statement.the_bfd)) | |
15fc2e13 | 3257 | { |
66be1055 AM |
3258 | s->input_statement.flags.loaded = FALSE; |
3259 | s->input_statement.flags.reload = TRUE; | |
15fc2e13 AM |
3260 | } |
3261 | #endif | |
252b5132 | 3262 | |
bde18da4 | 3263 | os_tail = lang_output_section_statement.tail; |
d1778b88 | 3264 | lang_list_init (&add); |
1276aefa | 3265 | |
6770ec8c | 3266 | if (! load_symbols (&s->input_statement, &add)) |
b34976b6 | 3267 | config.make_executable = FALSE; |
252b5132 RH |
3268 | |
3269 | if (add.head != NULL) | |
3270 | { | |
bde18da4 AM |
3271 | /* If this was a script with output sections then |
3272 | tack any added statements on to the end of the | |
3273 | list. This avoids having to reorder the output | |
3274 | section statement list. Very likely the user | |
3275 | forgot -T, and whatever we do here will not meet | |
3276 | naive user expectations. */ | |
3277 | if (os_tail != lang_output_section_statement.tail) | |
3278 | { | |
3279 | einfo (_("%P: warning: %s contains output sections;" | |
3280 | " did you forget -T?\n"), | |
3281 | s->input_statement.filename); | |
3282 | *stat_ptr->tail = add.head; | |
3283 | stat_ptr->tail = add.tail; | |
3284 | } | |
3285 | else | |
3286 | { | |
3287 | *add.tail = s->header.next; | |
3288 | s->header.next = add.head; | |
3289 | } | |
252b5132 RH |
3290 | } |
3291 | } | |
9e2278f5 AM |
3292 | #ifdef ENABLE_PLUGINS |
3293 | /* If we have found the point at which a plugin added new | |
3294 | files, clear plugin_insert to enable archive rescan. */ | |
3295 | if (&s->input_statement == plugin_insert) | |
3296 | plugin_insert = NULL; | |
3297 | #endif | |
252b5132 | 3298 | break; |
e759c116 | 3299 | case lang_assignment_statement_enum: |
01554a74 AM |
3300 | if (s->assignment_statement.exp->assign.hidden) |
3301 | /* This is from a --defsym on the command line. */ | |
3302 | exp_fold_tree_no_dot (s->assignment_statement.exp); | |
e759c116 | 3303 | break; |
252b5132 RH |
3304 | default: |
3305 | break; | |
3306 | } | |
3307 | } | |
c4b78195 NC |
3308 | |
3309 | /* Exit if any of the files were missing. */ | |
66be1055 | 3310 | if (input_flags.missing_file) |
c4b78195 | 3311 | einfo ("%F"); |
252b5132 RH |
3312 | } |
3313 | ||
420e579c HPN |
3314 | /* Add a symbol to a hash of symbols used in DEFINED (NAME) expressions. */ |
3315 | ||
3316 | void | |
3317 | lang_track_definedness (const char *name) | |
3318 | { | |
3319 | if (bfd_hash_lookup (&lang_definedness_table, name, TRUE, FALSE) == NULL) | |
3320 | einfo (_("%P%F: bfd_hash_lookup failed creating symbol %s\n"), name); | |
3321 | } | |
3322 | ||
3323 | /* New-function for the definedness hash table. */ | |
3324 | ||
3325 | static struct bfd_hash_entry * | |
3326 | lang_definedness_newfunc (struct bfd_hash_entry *entry, | |
3327 | struct bfd_hash_table *table ATTRIBUTE_UNUSED, | |
3328 | const char *name ATTRIBUTE_UNUSED) | |
3329 | { | |
3330 | struct lang_definedness_hash_entry *ret | |
3331 | = (struct lang_definedness_hash_entry *) entry; | |
3332 | ||
3333 | if (ret == NULL) | |
3334 | ret = (struct lang_definedness_hash_entry *) | |
3335 | bfd_hash_allocate (table, sizeof (struct lang_definedness_hash_entry)); | |
3336 | ||
3337 | if (ret == NULL) | |
3338 | einfo (_("%P%F: bfd_hash_allocate failed creating symbol %s\n"), name); | |
3339 | ||
3340 | ret->iteration = -1; | |
3341 | return &ret->root; | |
3342 | } | |
3343 | ||
3344 | /* Return the iteration when the definition of NAME was last updated. A | |
3345 | value of -1 means that the symbol is not defined in the linker script | |
3346 | or the command line, but may be defined in the linker symbol table. */ | |
3347 | ||
3348 | int | |
3349 | lang_symbol_definition_iteration (const char *name) | |
3350 | { | |
3351 | struct lang_definedness_hash_entry *defentry | |
3352 | = (struct lang_definedness_hash_entry *) | |
3353 | bfd_hash_lookup (&lang_definedness_table, name, FALSE, FALSE); | |
3354 | ||
3355 | /* We've already created this one on the presence of DEFINED in the | |
3356 | script, so it can't be NULL unless something is borked elsewhere in | |
3357 | the code. */ | |
3358 | if (defentry == NULL) | |
3359 | FAIL (); | |
3360 | ||
3361 | return defentry->iteration; | |
3362 | } | |
3363 | ||
3364 | /* Update the definedness state of NAME. */ | |
3365 | ||
3366 | void | |
3367 | lang_update_definedness (const char *name, struct bfd_link_hash_entry *h) | |
3368 | { | |
3369 | struct lang_definedness_hash_entry *defentry | |
3370 | = (struct lang_definedness_hash_entry *) | |
3371 | bfd_hash_lookup (&lang_definedness_table, name, FALSE, FALSE); | |
3372 | ||
3373 | /* We don't keep track of symbols not tested with DEFINED. */ | |
3374 | if (defentry == NULL) | |
3375 | return; | |
3376 | ||
3377 | /* If the symbol was already defined, and not from an earlier statement | |
3378 | iteration, don't update the definedness iteration, because that'd | |
3379 | make the symbol seem defined in the linker script at this point, and | |
3380 | it wasn't; it was defined in some object. If we do anyway, DEFINED | |
3381 | would start to yield false before this point and the construct "sym = | |
3382 | DEFINED (sym) ? sym : X;" would change sym to X despite being defined | |
3383 | in an object. */ | |
3384 | if (h->type != bfd_link_hash_undefined | |
3385 | && h->type != bfd_link_hash_common | |
3386 | && h->type != bfd_link_hash_new | |
3387 | && defentry->iteration == -1) | |
3388 | return; | |
3389 | ||
3390 | defentry->iteration = lang_statement_iteration; | |
3391 | } | |
3392 | ||
08da4cac | 3393 | /* Add the supplied name to the symbol table as an undefined reference. |
fcf0e35b AM |
3394 | This is a two step process as the symbol table doesn't even exist at |
3395 | the time the ld command line is processed. First we put the name | |
3396 | on a list, then, once the output file has been opened, transfer the | |
3397 | name to the symbol table. */ | |
3398 | ||
e3e942e9 | 3399 | typedef struct bfd_sym_chain ldlang_undef_chain_list_type; |
252b5132 | 3400 | |
e3e942e9 | 3401 | #define ldlang_undef_chain_list_head entry_symbol.next |
252b5132 RH |
3402 | |
3403 | void | |
24898b70 | 3404 | ldlang_add_undef (const char *const name, bfd_boolean cmdline) |
252b5132 | 3405 | { |
24898b70 | 3406 | ldlang_undef_chain_list_type *new_undef; |
252b5132 | 3407 | |
24898b70 AM |
3408 | undef_from_cmdline = undef_from_cmdline || cmdline; |
3409 | new_undef = (ldlang_undef_chain_list_type *) stat_alloc (sizeof (*new_undef)); | |
d3ce72d0 NC |
3410 | new_undef->next = ldlang_undef_chain_list_head; |
3411 | ldlang_undef_chain_list_head = new_undef; | |
252b5132 | 3412 | |
d3ce72d0 | 3413 | new_undef->name = xstrdup (name); |
fcf0e35b | 3414 | |
f13a99db | 3415 | if (link_info.output_bfd != NULL) |
d3ce72d0 | 3416 | insert_undefined (new_undef->name); |
fcf0e35b AM |
3417 | } |
3418 | ||
3419 | /* Insert NAME as undefined in the symbol table. */ | |
3420 | ||
3421 | static void | |
1579bae1 | 3422 | insert_undefined (const char *name) |
fcf0e35b AM |
3423 | { |
3424 | struct bfd_link_hash_entry *h; | |
3425 | ||
b34976b6 | 3426 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, FALSE, TRUE); |
1579bae1 | 3427 | if (h == NULL) |
fcf0e35b AM |
3428 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); |
3429 | if (h->type == bfd_link_hash_new) | |
3430 | { | |
3431 | h->type = bfd_link_hash_undefined; | |
3432 | h->u.undef.abfd = NULL; | |
3433 | bfd_link_add_undef (link_info.hash, h); | |
3434 | } | |
252b5132 RH |
3435 | } |
3436 | ||
3437 | /* Run through the list of undefineds created above and place them | |
3438 | into the linker hash table as undefined symbols belonging to the | |
08da4cac KH |
3439 | script file. */ |
3440 | ||
252b5132 | 3441 | static void |
1579bae1 | 3442 | lang_place_undefineds (void) |
252b5132 RH |
3443 | { |
3444 | ldlang_undef_chain_list_type *ptr; | |
3445 | ||
1579bae1 AM |
3446 | for (ptr = ldlang_undef_chain_list_head; ptr != NULL; ptr = ptr->next) |
3447 | insert_undefined (ptr->name); | |
252b5132 RH |
3448 | } |
3449 | ||
0841712e JJ |
3450 | /* Check for all readonly or some readwrite sections. */ |
3451 | ||
3452 | static void | |
6feb9908 AM |
3453 | check_input_sections |
3454 | (lang_statement_union_type *s, | |
3455 | lang_output_section_statement_type *output_section_statement) | |
0841712e JJ |
3456 | { |
3457 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) | |
3458 | { | |
3459 | switch (s->header.type) | |
967928e9 AM |
3460 | { |
3461 | case lang_wild_statement_enum: | |
3462 | walk_wild (&s->wild_statement, check_section_callback, | |
3463 | output_section_statement); | |
3464 | if (! output_section_statement->all_input_readonly) | |
3465 | return; | |
3466 | break; | |
3467 | case lang_constructors_statement_enum: | |
3468 | check_input_sections (constructor_list.head, | |
3469 | output_section_statement); | |
3470 | if (! output_section_statement->all_input_readonly) | |
3471 | return; | |
3472 | break; | |
3473 | case lang_group_statement_enum: | |
3474 | check_input_sections (s->group_statement.children.head, | |
3475 | output_section_statement); | |
3476 | if (! output_section_statement->all_input_readonly) | |
3477 | return; | |
3478 | break; | |
3479 | default: | |
3480 | break; | |
3481 | } | |
0841712e JJ |
3482 | } |
3483 | } | |
3484 | ||
bcaa7b3e L |
3485 | /* Update wildcard statements if needed. */ |
3486 | ||
3487 | static void | |
3488 | update_wild_statements (lang_statement_union_type *s) | |
3489 | { | |
3490 | struct wildcard_list *sec; | |
3491 | ||
3492 | switch (sort_section) | |
3493 | { | |
3494 | default: | |
3495 | FAIL (); | |
3496 | ||
3497 | case none: | |
3498 | break; | |
3499 | ||
3500 | case by_name: | |
3501 | case by_alignment: | |
3502 | for (; s != NULL; s = s->header.next) | |
3503 | { | |
3504 | switch (s->header.type) | |
3505 | { | |
3506 | default: | |
3507 | break; | |
3508 | ||
3509 | case lang_wild_statement_enum: | |
3510 | sec = s->wild_statement.section_list; | |
0d0999db L |
3511 | for (sec = s->wild_statement.section_list; sec != NULL; |
3512 | sec = sec->next) | |
bcaa7b3e L |
3513 | { |
3514 | switch (sec->spec.sorted) | |
3515 | { | |
3516 | case none: | |
3517 | sec->spec.sorted = sort_section; | |
3518 | break; | |
3519 | case by_name: | |
3520 | if (sort_section == by_alignment) | |
3521 | sec->spec.sorted = by_name_alignment; | |
3522 | break; | |
3523 | case by_alignment: | |
3524 | if (sort_section == by_name) | |
3525 | sec->spec.sorted = by_alignment_name; | |
3526 | break; | |
3527 | default: | |
3528 | break; | |
3529 | } | |
3530 | } | |
3531 | break; | |
3532 | ||
3533 | case lang_constructors_statement_enum: | |
3534 | update_wild_statements (constructor_list.head); | |
3535 | break; | |
3536 | ||
3537 | case lang_output_section_statement_enum: | |
3538 | update_wild_statements | |
3539 | (s->output_section_statement.children.head); | |
3540 | break; | |
3541 | ||
3542 | case lang_group_statement_enum: | |
3543 | update_wild_statements (s->group_statement.children.head); | |
3544 | break; | |
3545 | } | |
3546 | } | |
3547 | break; | |
3548 | } | |
3549 | } | |
3550 | ||
396a2467 | 3551 | /* Open input files and attach to output sections. */ |
08da4cac | 3552 | |
252b5132 | 3553 | static void |
1579bae1 AM |
3554 | map_input_to_output_sections |
3555 | (lang_statement_union_type *s, const char *target, | |
afd7a018 | 3556 | lang_output_section_statement_type *os) |
252b5132 | 3557 | { |
1579bae1 | 3558 | for (; s != NULL; s = s->header.next) |
252b5132 | 3559 | { |
dfa7b0b8 AM |
3560 | lang_output_section_statement_type *tos; |
3561 | flagword flags; | |
3562 | ||
252b5132 RH |
3563 | switch (s->header.type) |
3564 | { | |
252b5132 | 3565 | case lang_wild_statement_enum: |
afd7a018 | 3566 | wild (&s->wild_statement, target, os); |
abc6ab0a | 3567 | break; |
252b5132 RH |
3568 | case lang_constructors_statement_enum: |
3569 | map_input_to_output_sections (constructor_list.head, | |
3570 | target, | |
afd7a018 | 3571 | os); |
252b5132 RH |
3572 | break; |
3573 | case lang_output_section_statement_enum: | |
dfa7b0b8 AM |
3574 | tos = &s->output_section_statement; |
3575 | if (tos->constraint != 0) | |
0841712e | 3576 | { |
dfa7b0b8 AM |
3577 | if (tos->constraint != ONLY_IF_RW |
3578 | && tos->constraint != ONLY_IF_RO) | |
0841712e | 3579 | break; |
dfa7b0b8 AM |
3580 | tos->all_input_readonly = TRUE; |
3581 | check_input_sections (tos->children.head, tos); | |
3582 | if (tos->all_input_readonly != (tos->constraint == ONLY_IF_RO)) | |
0841712e | 3583 | { |
dfa7b0b8 | 3584 | tos->constraint = -1; |
0841712e JJ |
3585 | break; |
3586 | } | |
3587 | } | |
dfa7b0b8 | 3588 | map_input_to_output_sections (tos->children.head, |
252b5132 | 3589 | target, |
dfa7b0b8 | 3590 | tos); |
a431bc2e AM |
3591 | break; |
3592 | case lang_output_statement_enum: | |
252b5132 RH |
3593 | break; |
3594 | case lang_target_statement_enum: | |
3595 | target = s->target_statement.target; | |
3596 | break; | |
3597 | case lang_group_statement_enum: | |
3598 | map_input_to_output_sections (s->group_statement.children.head, | |
3599 | target, | |
afd7a018 | 3600 | os); |
252b5132 | 3601 | break; |
384d938f NS |
3602 | case lang_data_statement_enum: |
3603 | /* Make sure that any sections mentioned in the expression | |
3604 | are initialized. */ | |
3605 | exp_init_os (s->data_statement.exp); | |
2e76e85a AM |
3606 | /* The output section gets CONTENTS, ALLOC and LOAD, but |
3607 | these may be overridden by the script. */ | |
dfa7b0b8 AM |
3608 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD; |
3609 | switch (os->sectype) | |
3610 | { | |
3611 | case normal_section: | |
3612 | case overlay_section: | |
3613 | break; | |
3614 | case noalloc_section: | |
3615 | flags = SEC_HAS_CONTENTS; | |
3616 | break; | |
3617 | case noload_section: | |
f4eaaf7f AM |
3618 | if (bfd_get_flavour (link_info.output_bfd) |
3619 | == bfd_target_elf_flavour) | |
3620 | flags = SEC_NEVER_LOAD | SEC_ALLOC; | |
3621 | else | |
3622 | flags = SEC_NEVER_LOAD | SEC_HAS_CONTENTS; | |
dfa7b0b8 AM |
3623 | break; |
3624 | } | |
a431bc2e | 3625 | if (os->bfd_section == NULL) |
dfa7b0b8 | 3626 | init_os (os, flags); |
a431bc2e AM |
3627 | else |
3628 | os->bfd_section->flags |= flags; | |
afd7a018 | 3629 | break; |
252b5132 | 3630 | case lang_input_section_enum: |
e0f6802f AM |
3631 | break; |
3632 | case lang_fill_statement_enum: | |
252b5132 | 3633 | case lang_object_symbols_statement_enum: |
252b5132 RH |
3634 | case lang_reloc_statement_enum: |
3635 | case lang_padding_statement_enum: | |
3636 | case lang_input_statement_enum: | |
afd7a018 | 3637 | if (os != NULL && os->bfd_section == NULL) |
dfa7b0b8 | 3638 | init_os (os, 0); |
252b5132 RH |
3639 | break; |
3640 | case lang_assignment_statement_enum: | |
afd7a018 | 3641 | if (os != NULL && os->bfd_section == NULL) |
dfa7b0b8 | 3642 | init_os (os, 0); |
252b5132 RH |
3643 | |
3644 | /* Make sure that any sections mentioned in the assignment | |
08da4cac | 3645 | are initialized. */ |
252b5132 RH |
3646 | exp_init_os (s->assignment_statement.exp); |
3647 | break; | |
252b5132 | 3648 | case lang_address_statement_enum: |
a431bc2e AM |
3649 | /* Mark the specified section with the supplied address. |
3650 | If this section was actually a segment marker, then the | |
3651 | directive is ignored if the linker script explicitly | |
3652 | processed the segment marker. Originally, the linker | |
3653 | treated segment directives (like -Ttext on the | |
3654 | command-line) as section directives. We honor the | |
3655 | section directive semantics for backwards compatibilty; | |
3656 | linker scripts that do not specifically check for | |
3657 | SEGMENT_START automatically get the old semantics. */ | |
329c1c86 | 3658 | if (!s->address_statement.segment |
ba916c8a MM |
3659 | || !s->address_statement.segment->used) |
3660 | { | |
dfa7b0b8 AM |
3661 | const char *name = s->address_statement.section_name; |
3662 | ||
3663 | /* Create the output section statement here so that | |
3664 | orphans with a set address will be placed after other | |
3665 | script sections. If we let the orphan placement code | |
3666 | place them in amongst other sections then the address | |
3667 | will affect following script sections, which is | |
3668 | likely to surprise naive users. */ | |
3669 | tos = lang_output_section_statement_lookup (name, 0, TRUE); | |
3670 | tos->addr_tree = s->address_statement.address; | |
3671 | if (tos->bfd_section == NULL) | |
3672 | init_os (tos, 0); | |
ba916c8a | 3673 | } |
252b5132 | 3674 | break; |
53d25da6 AM |
3675 | case lang_insert_statement_enum: |
3676 | break; | |
3677 | } | |
3678 | } | |
3679 | } | |
3680 | ||
3681 | /* An insert statement snips out all the linker statements from the | |
3682 | start of the list and places them after the output section | |
3683 | statement specified by the insert. This operation is complicated | |
3684 | by the fact that we keep a doubly linked list of output section | |
3685 | statements as well as the singly linked list of all statements. */ | |
3686 | ||
3687 | static void | |
3688 | process_insert_statements (void) | |
3689 | { | |
3690 | lang_statement_union_type **s; | |
3691 | lang_output_section_statement_type *first_os = NULL; | |
3692 | lang_output_section_statement_type *last_os = NULL; | |
66c103b7 | 3693 | lang_output_section_statement_type *os; |
53d25da6 AM |
3694 | |
3695 | /* "start of list" is actually the statement immediately after | |
3696 | the special abs_section output statement, so that it isn't | |
3697 | reordered. */ | |
3698 | s = &lang_output_section_statement.head; | |
3699 | while (*(s = &(*s)->header.next) != NULL) | |
3700 | { | |
3701 | if ((*s)->header.type == lang_output_section_statement_enum) | |
3702 | { | |
3703 | /* Keep pointers to the first and last output section | |
3704 | statement in the sequence we may be about to move. */ | |
d2ae7be0 AM |
3705 | os = &(*s)->output_section_statement; |
3706 | ||
3707 | ASSERT (last_os == NULL || last_os->next == os); | |
3708 | last_os = os; | |
66c103b7 AM |
3709 | |
3710 | /* Set constraint negative so that lang_output_section_find | |
3711 | won't match this output section statement. At this | |
3712 | stage in linking constraint has values in the range | |
3713 | [-1, ONLY_IN_RW]. */ | |
3714 | last_os->constraint = -2 - last_os->constraint; | |
53d25da6 AM |
3715 | if (first_os == NULL) |
3716 | first_os = last_os; | |
3717 | } | |
3718 | else if ((*s)->header.type == lang_insert_statement_enum) | |
3719 | { | |
3720 | lang_insert_statement_type *i = &(*s)->insert_statement; | |
3721 | lang_output_section_statement_type *where; | |
53d25da6 AM |
3722 | lang_statement_union_type **ptr; |
3723 | lang_statement_union_type *first; | |
3724 | ||
3725 | where = lang_output_section_find (i->where); | |
3726 | if (where != NULL && i->is_before) | |
3727 | { | |
967928e9 | 3728 | do |
53d25da6 | 3729 | where = where->prev; |
66c103b7 | 3730 | while (where != NULL && where->constraint < 0); |
53d25da6 AM |
3731 | } |
3732 | if (where == NULL) | |
3733 | { | |
66c103b7 AM |
3734 | einfo (_("%F%P: %s not found for insert\n"), i->where); |
3735 | return; | |
53d25da6 AM |
3736 | } |
3737 | ||
3738 | /* Deal with reordering the output section statement list. */ | |
3739 | if (last_os != NULL) | |
3740 | { | |
3741 | asection *first_sec, *last_sec; | |
29183214 | 3742 | struct lang_output_section_statement_struct **next; |
53d25da6 AM |
3743 | |
3744 | /* Snip out the output sections we are moving. */ | |
3745 | first_os->prev->next = last_os->next; | |
3746 | if (last_os->next == NULL) | |
29183214 L |
3747 | { |
3748 | next = &first_os->prev->next; | |
3749 | lang_output_section_statement.tail | |
3750 | = (lang_statement_union_type **) next; | |
3751 | } | |
53d25da6 AM |
3752 | else |
3753 | last_os->next->prev = first_os->prev; | |
3754 | /* Add them in at the new position. */ | |
3755 | last_os->next = where->next; | |
3756 | if (where->next == NULL) | |
29183214 L |
3757 | { |
3758 | next = &last_os->next; | |
3759 | lang_output_section_statement.tail | |
3760 | = (lang_statement_union_type **) next; | |
3761 | } | |
53d25da6 AM |
3762 | else |
3763 | where->next->prev = last_os; | |
3764 | first_os->prev = where; | |
3765 | where->next = first_os; | |
3766 | ||
3767 | /* Move the bfd sections in the same way. */ | |
3768 | first_sec = NULL; | |
3769 | last_sec = NULL; | |
3770 | for (os = first_os; os != NULL; os = os->next) | |
3771 | { | |
66c103b7 | 3772 | os->constraint = -2 - os->constraint; |
53d25da6 AM |
3773 | if (os->bfd_section != NULL |
3774 | && os->bfd_section->owner != NULL) | |
3775 | { | |
3776 | last_sec = os->bfd_section; | |
3777 | if (first_sec == NULL) | |
3778 | first_sec = last_sec; | |
3779 | } | |
3780 | if (os == last_os) | |
3781 | break; | |
3782 | } | |
3783 | if (last_sec != NULL) | |
3784 | { | |
3785 | asection *sec = where->bfd_section; | |
3786 | if (sec == NULL) | |
3787 | sec = output_prev_sec_find (where); | |
3788 | ||
3789 | /* The place we want to insert must come after the | |
3790 | sections we are moving. So if we find no | |
3791 | section or if the section is the same as our | |
3792 | last section, then no move is needed. */ | |
3793 | if (sec != NULL && sec != last_sec) | |
3794 | { | |
3795 | /* Trim them off. */ | |
3796 | if (first_sec->prev != NULL) | |
3797 | first_sec->prev->next = last_sec->next; | |
3798 | else | |
f13a99db | 3799 | link_info.output_bfd->sections = last_sec->next; |
53d25da6 AM |
3800 | if (last_sec->next != NULL) |
3801 | last_sec->next->prev = first_sec->prev; | |
3802 | else | |
f13a99db | 3803 | link_info.output_bfd->section_last = first_sec->prev; |
53d25da6 AM |
3804 | /* Add back. */ |
3805 | last_sec->next = sec->next; | |
3806 | if (sec->next != NULL) | |
3807 | sec->next->prev = last_sec; | |
3808 | else | |
f13a99db | 3809 | link_info.output_bfd->section_last = last_sec; |
53d25da6 AM |
3810 | first_sec->prev = sec; |
3811 | sec->next = first_sec; | |
3812 | } | |
3813 | } | |
3814 | ||
3815 | first_os = NULL; | |
3816 | last_os = NULL; | |
3817 | } | |
3818 | ||
3819 | ptr = insert_os_after (where); | |
3820 | /* Snip everything after the abs_section output statement we | |
3821 | know is at the start of the list, up to and including | |
3822 | the insert statement we are currently processing. */ | |
3823 | first = lang_output_section_statement.head->header.next; | |
3824 | lang_output_section_statement.head->header.next = (*s)->header.next; | |
3825 | /* Add them back where they belong. */ | |
3826 | *s = *ptr; | |
3827 | if (*s == NULL) | |
3828 | statement_list.tail = s; | |
3829 | *ptr = first; | |
3830 | s = &lang_output_section_statement.head; | |
252b5132 RH |
3831 | } |
3832 | } | |
66c103b7 AM |
3833 | |
3834 | /* Undo constraint twiddling. */ | |
3835 | for (os = first_os; os != NULL; os = os->next) | |
3836 | { | |
3837 | os->constraint = -2 - os->constraint; | |
3838 | if (os == last_os) | |
3839 | break; | |
3840 | } | |
252b5132 RH |
3841 | } |
3842 | ||
4bd5a393 AM |
3843 | /* An output section might have been removed after its statement was |
3844 | added. For example, ldemul_before_allocation can remove dynamic | |
3845 | sections if they turn out to be not needed. Clean them up here. */ | |
3846 | ||
8423293d | 3847 | void |
1579bae1 | 3848 | strip_excluded_output_sections (void) |
4bd5a393 | 3849 | { |
afd7a018 | 3850 | lang_output_section_statement_type *os; |
4bd5a393 | 3851 | |
046183de | 3852 | /* Run lang_size_sections (if not already done). */ |
e9ee469a AM |
3853 | if (expld.phase != lang_mark_phase_enum) |
3854 | { | |
3855 | expld.phase = lang_mark_phase_enum; | |
3856 | expld.dataseg.phase = exp_dataseg_none; | |
3857 | one_lang_size_sections_pass (NULL, FALSE); | |
3858 | lang_reset_memory_regions (); | |
3859 | } | |
3860 | ||
afd7a018 AM |
3861 | for (os = &lang_output_section_statement.head->output_section_statement; |
3862 | os != NULL; | |
3863 | os = os->next) | |
4bd5a393 | 3864 | { |
75ff4589 L |
3865 | asection *output_section; |
3866 | bfd_boolean exclude; | |
4bd5a393 | 3867 | |
66c103b7 | 3868 | if (os->constraint < 0) |
0841712e | 3869 | continue; |
8423293d | 3870 | |
75ff4589 L |
3871 | output_section = os->bfd_section; |
3872 | if (output_section == NULL) | |
8423293d AM |
3873 | continue; |
3874 | ||
32124d5b AM |
3875 | exclude = (output_section->rawsize == 0 |
3876 | && (output_section->flags & SEC_KEEP) == 0 | |
f13a99db | 3877 | && !bfd_section_removed_from_list (link_info.output_bfd, |
32124d5b AM |
3878 | output_section)); |
3879 | ||
3880 | /* Some sections have not yet been sized, notably .gnu.version, | |
3881 | .dynsym, .dynstr and .hash. These all have SEC_LINKER_CREATED | |
3882 | input sections, so don't drop output sections that have such | |
3883 | input sections unless they are also marked SEC_EXCLUDE. */ | |
3884 | if (exclude && output_section->map_head.s != NULL) | |
75ff4589 L |
3885 | { |
3886 | asection *s; | |
8423293d | 3887 | |
32124d5b | 3888 | for (s = output_section->map_head.s; s != NULL; s = s->map_head.s) |
b514e6a5 AM |
3889 | if ((s->flags & SEC_EXCLUDE) == 0 |
3890 | && ((s->flags & SEC_LINKER_CREATED) != 0 | |
3891 | || link_info.emitrelocations)) | |
e9ee469a AM |
3892 | { |
3893 | exclude = FALSE; | |
3894 | break; | |
3895 | } | |
75ff4589 | 3896 | } |
8423293d | 3897 | |
32124d5b AM |
3898 | /* TODO: Don't just junk map_head.s, turn them into link_orders. */ |
3899 | output_section->map_head.link_order = NULL; | |
3900 | output_section->map_tail.link_order = NULL; | |
3901 | ||
3902 | if (exclude) | |
4bd5a393 | 3903 | { |
e9ee469a AM |
3904 | /* We don't set bfd_section to NULL since bfd_section of the |
3905 | removed output section statement may still be used. */ | |
3d263d86 AM |
3906 | if (!os->section_relative_symbol |
3907 | && !os->update_dot_tree) | |
74541ad4 | 3908 | os->ignored = TRUE; |
e9ee469a | 3909 | output_section->flags |= SEC_EXCLUDE; |
f13a99db AM |
3910 | bfd_section_list_remove (link_info.output_bfd, output_section); |
3911 | link_info.output_bfd->section_count--; | |
4bd5a393 AM |
3912 | } |
3913 | } | |
8423293d AM |
3914 | |
3915 | /* Stop future calls to lang_add_section from messing with map_head | |
3916 | and map_tail link_order fields. */ | |
3917 | stripped_excluded_sections = TRUE; | |
4bd5a393 AM |
3918 | } |
3919 | ||
252b5132 | 3920 | static void |
1579bae1 AM |
3921 | print_output_section_statement |
3922 | (lang_output_section_statement_type *output_section_statement) | |
252b5132 RH |
3923 | { |
3924 | asection *section = output_section_statement->bfd_section; | |
3925 | int len; | |
3926 | ||
3927 | if (output_section_statement != abs_output_section) | |
3928 | { | |
3929 | minfo ("\n%s", output_section_statement->name); | |
3930 | ||
3931 | if (section != NULL) | |
3932 | { | |
3933 | print_dot = section->vma; | |
3934 | ||
3935 | len = strlen (output_section_statement->name); | |
3936 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
3937 | { | |
3938 | print_nl (); | |
3939 | len = 0; | |
3940 | } | |
3941 | while (len < SECTION_NAME_MAP_LENGTH) | |
3942 | { | |
3943 | print_space (); | |
3944 | ++len; | |
3945 | } | |
3946 | ||
eea6121a | 3947 | minfo ("0x%V %W", section->vma, section->size); |
252b5132 | 3948 | |
67f744f3 AM |
3949 | if (section->vma != section->lma) |
3950 | minfo (_(" load address 0x%V"), section->lma); | |
5590fba9 NC |
3951 | |
3952 | if (output_section_statement->update_dot_tree != NULL) | |
3953 | exp_fold_tree (output_section_statement->update_dot_tree, | |
3954 | bfd_abs_section_ptr, &print_dot); | |
252b5132 RH |
3955 | } |
3956 | ||
3957 | print_nl (); | |
3958 | } | |
3959 | ||
3960 | print_statement_list (output_section_statement->children.head, | |
3961 | output_section_statement); | |
3962 | } | |
3963 | ||
3b83e13a NC |
3964 | /* Scan for the use of the destination in the right hand side |
3965 | of an expression. In such cases we will not compute the | |
3966 | correct expression, since the value of DST that is used on | |
3967 | the right hand side will be its final value, not its value | |
3968 | just before this expression is evaluated. */ | |
329c1c86 | 3969 | |
3b83e13a NC |
3970 | static bfd_boolean |
3971 | scan_for_self_assignment (const char * dst, etree_type * rhs) | |
3972 | { | |
3973 | if (rhs == NULL || dst == NULL) | |
3974 | return FALSE; | |
3975 | ||
3976 | switch (rhs->type.node_class) | |
3977 | { | |
3978 | case etree_binary: | |
e759c116 AM |
3979 | return (scan_for_self_assignment (dst, rhs->binary.lhs) |
3980 | || scan_for_self_assignment (dst, rhs->binary.rhs)); | |
3b83e13a NC |
3981 | |
3982 | case etree_trinary: | |
e759c116 AM |
3983 | return (scan_for_self_assignment (dst, rhs->trinary.lhs) |
3984 | || scan_for_self_assignment (dst, rhs->trinary.rhs)); | |
3b83e13a NC |
3985 | |
3986 | case etree_assign: | |
3987 | case etree_provided: | |
3988 | case etree_provide: | |
3989 | if (strcmp (dst, rhs->assign.dst) == 0) | |
3990 | return TRUE; | |
3991 | return scan_for_self_assignment (dst, rhs->assign.src); | |
3992 | ||
3993 | case etree_unary: | |
3994 | return scan_for_self_assignment (dst, rhs->unary.child); | |
3995 | ||
3996 | case etree_value: | |
3997 | if (rhs->value.str) | |
3998 | return strcmp (dst, rhs->value.str) == 0; | |
3999 | return FALSE; | |
4000 | ||
4001 | case etree_name: | |
4002 | if (rhs->name.name) | |
4003 | return strcmp (dst, rhs->name.name) == 0; | |
4004 | return FALSE; | |
4005 | ||
4006 | default: | |
4007 | break; | |
4008 | } | |
4009 | ||
4010 | return FALSE; | |
4011 | } | |
4012 | ||
4013 | ||
252b5132 | 4014 | static void |
1579bae1 AM |
4015 | print_assignment (lang_assignment_statement_type *assignment, |
4016 | lang_output_section_statement_type *output_section) | |
252b5132 | 4017 | { |
3b83e13a NC |
4018 | unsigned int i; |
4019 | bfd_boolean is_dot; | |
4020 | bfd_boolean computation_is_valid = TRUE; | |
afd7a018 | 4021 | etree_type *tree; |
8658f989 | 4022 | asection *osec; |
252b5132 RH |
4023 | |
4024 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
4025 | print_space (); | |
4026 | ||
afd7a018 AM |
4027 | if (assignment->exp->type.node_class == etree_assert) |
4028 | { | |
3b83e13a | 4029 | is_dot = FALSE; |
afd7a018 | 4030 | tree = assignment->exp->assert_s.child; |
3b83e13a | 4031 | computation_is_valid = TRUE; |
afd7a018 AM |
4032 | } |
4033 | else | |
4034 | { | |
4035 | const char *dst = assignment->exp->assign.dst; | |
3b83e13a NC |
4036 | |
4037 | is_dot = (dst[0] == '.' && dst[1] == 0); | |
afd7a018 | 4038 | tree = assignment->exp->assign.src; |
e759c116 | 4039 | computation_is_valid = is_dot || !scan_for_self_assignment (dst, tree); |
afd7a018 AM |
4040 | } |
4041 | ||
8658f989 AM |
4042 | osec = output_section->bfd_section; |
4043 | if (osec == NULL) | |
4044 | osec = bfd_abs_section_ptr; | |
4045 | exp_fold_tree (tree, osec, &print_dot); | |
e9ee469a | 4046 | if (expld.result.valid_p) |
7b17f854 | 4047 | { |
7b17f854 RS |
4048 | bfd_vma value; |
4049 | ||
3b83e13a NC |
4050 | if (computation_is_valid) |
4051 | { | |
e9ee469a | 4052 | value = expld.result.value; |
10dbd1f3 | 4053 | |
7542af2a | 4054 | if (expld.result.section != NULL) |
e9ee469a | 4055 | value += expld.result.section->vma; |
7b17f854 | 4056 | |
3b83e13a NC |
4057 | minfo ("0x%V", value); |
4058 | if (is_dot) | |
4059 | print_dot = value; | |
4060 | } | |
4061 | else | |
4062 | { | |
4063 | struct bfd_link_hash_entry *h; | |
4064 | ||
4065 | h = bfd_link_hash_lookup (link_info.hash, assignment->exp->assign.dst, | |
4066 | FALSE, FALSE, TRUE); | |
4067 | if (h) | |
4068 | { | |
10dbd1f3 | 4069 | value = h->u.def.value; |
f37a7048 NS |
4070 | value += h->u.def.section->output_section->vma; |
4071 | value += h->u.def.section->output_offset; | |
3b83e13a NC |
4072 | |
4073 | minfo ("[0x%V]", value); | |
4074 | } | |
4075 | else | |
4076 | minfo ("[unresolved]"); | |
4077 | } | |
7b17f854 | 4078 | } |
252b5132 RH |
4079 | else |
4080 | { | |
4081 | minfo ("*undef* "); | |
4082 | #ifdef BFD64 | |
4083 | minfo (" "); | |
4084 | #endif | |
4085 | } | |
4086 | ||
4087 | minfo (" "); | |
252b5132 | 4088 | exp_print_tree (assignment->exp); |
252b5132 RH |
4089 | print_nl (); |
4090 | } | |
4091 | ||
4092 | static void | |
1579bae1 | 4093 | print_input_statement (lang_input_statement_type *statm) |
252b5132 | 4094 | { |
967928e9 AM |
4095 | if (statm->filename != NULL |
4096 | && (statm->the_bfd == NULL | |
4097 | || (statm->the_bfd->flags & BFD_LINKER_CREATED) == 0)) | |
906e58ca | 4098 | fprintf (config.map_file, "LOAD %s\n", statm->filename); |
252b5132 RH |
4099 | } |
4100 | ||
4101 | /* Print all symbols defined in a particular section. This is called | |
35835446 | 4102 | via bfd_link_hash_traverse, or by print_all_symbols. */ |
252b5132 | 4103 | |
b34976b6 | 4104 | static bfd_boolean |
1579bae1 | 4105 | print_one_symbol (struct bfd_link_hash_entry *hash_entry, void *ptr) |
252b5132 | 4106 | { |
1e9cc1c2 | 4107 | asection *sec = (asection *) ptr; |
252b5132 RH |
4108 | |
4109 | if ((hash_entry->type == bfd_link_hash_defined | |
4110 | || hash_entry->type == bfd_link_hash_defweak) | |
4111 | && sec == hash_entry->u.def.section) | |
4112 | { | |
4113 | int i; | |
4114 | ||
4115 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
4116 | print_space (); | |
4117 | minfo ("0x%V ", | |
4118 | (hash_entry->u.def.value | |
4119 | + hash_entry->u.def.section->output_offset | |
4120 | + hash_entry->u.def.section->output_section->vma)); | |
4121 | ||
4122 | minfo (" %T\n", hash_entry->root.string); | |
4123 | } | |
4124 | ||
b34976b6 | 4125 | return TRUE; |
252b5132 RH |
4126 | } |
4127 | ||
02688209 TG |
4128 | static int |
4129 | hash_entry_addr_cmp (const void *a, const void *b) | |
4130 | { | |
4131 | const struct bfd_link_hash_entry *l = *(const struct bfd_link_hash_entry **)a; | |
4132 | const struct bfd_link_hash_entry *r = *(const struct bfd_link_hash_entry **)b; | |
4133 | ||
4134 | if (l->u.def.value < r->u.def.value) | |
4135 | return -1; | |
4136 | else if (l->u.def.value > r->u.def.value) | |
4137 | return 1; | |
4138 | else | |
4139 | return 0; | |
4140 | } | |
4141 | ||
35835446 | 4142 | static void |
e0f6802f | 4143 | print_all_symbols (asection *sec) |
35835446 | 4144 | { |
1e9cc1c2 NC |
4145 | struct fat_user_section_struct *ud = |
4146 | (struct fat_user_section_struct *) get_userdata (sec); | |
35835446 | 4147 | struct map_symbol_def *def; |
02688209 TG |
4148 | struct bfd_link_hash_entry **entries; |
4149 | unsigned int i; | |
35835446 | 4150 | |
afd7a018 AM |
4151 | if (!ud) |
4152 | return; | |
4153 | ||
35835446 | 4154 | *ud->map_symbol_def_tail = 0; |
1e0061d2 | 4155 | |
02688209 | 4156 | /* Sort the symbols by address. */ |
1e9cc1c2 NC |
4157 | entries = (struct bfd_link_hash_entry **) |
4158 | obstack_alloc (&map_obstack, ud->map_symbol_def_count * sizeof (*entries)); | |
02688209 TG |
4159 | |
4160 | for (i = 0, def = ud->map_symbol_def_head; def; def = def->next, i++) | |
4161 | entries[i] = def->entry; | |
4162 | ||
4163 | qsort (entries, ud->map_symbol_def_count, sizeof (*entries), | |
4164 | hash_entry_addr_cmp); | |
4165 | ||
4166 | /* Print the symbols. */ | |
4167 | for (i = 0; i < ud->map_symbol_def_count; i++) | |
4168 | print_one_symbol (entries[i], sec); | |
4169 | ||
4170 | obstack_free (&map_obstack, entries); | |
35835446 JR |
4171 | } |
4172 | ||
252b5132 RH |
4173 | /* Print information about an input section to the map file. */ |
4174 | ||
4175 | static void | |
d64703c6 | 4176 | print_input_section (asection *i, bfd_boolean is_discarded) |
252b5132 | 4177 | { |
eea6121a | 4178 | bfd_size_type size = i->size; |
abe6ac95 AM |
4179 | int len; |
4180 | bfd_vma addr; | |
e5caa5e0 AM |
4181 | |
4182 | init_opb (); | |
4d4920ec | 4183 | |
abe6ac95 AM |
4184 | print_space (); |
4185 | minfo ("%s", i->name); | |
252b5132 | 4186 | |
abe6ac95 AM |
4187 | len = 1 + strlen (i->name); |
4188 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
4189 | { | |
4190 | print_nl (); | |
4191 | len = 0; | |
4192 | } | |
4193 | while (len < SECTION_NAME_MAP_LENGTH) | |
4194 | { | |
57ceae94 | 4195 | print_space (); |
abe6ac95 AM |
4196 | ++len; |
4197 | } | |
252b5132 | 4198 | |
f13a99db AM |
4199 | if (i->output_section != NULL |
4200 | && i->output_section->owner == link_info.output_bfd) | |
abe6ac95 AM |
4201 | addr = i->output_section->vma + i->output_offset; |
4202 | else | |
4203 | { | |
4204 | addr = print_dot; | |
d64703c6 TG |
4205 | if (!is_discarded) |
4206 | size = 0; | |
abe6ac95 | 4207 | } |
252b5132 | 4208 | |
abe6ac95 | 4209 | minfo ("0x%V %W %B\n", addr, TO_ADDR (size), i->owner); |
252b5132 | 4210 | |
abe6ac95 AM |
4211 | if (size != i->rawsize && i->rawsize != 0) |
4212 | { | |
4213 | len = SECTION_NAME_MAP_LENGTH + 3; | |
252b5132 | 4214 | #ifdef BFD64 |
abe6ac95 | 4215 | len += 16; |
252b5132 | 4216 | #else |
abe6ac95 | 4217 | len += 8; |
252b5132 | 4218 | #endif |
abe6ac95 AM |
4219 | while (len > 0) |
4220 | { | |
4221 | print_space (); | |
4222 | --len; | |
57ceae94 AM |
4223 | } |
4224 | ||
abe6ac95 AM |
4225 | minfo (_("%W (size before relaxing)\n"), i->rawsize); |
4226 | } | |
252b5132 | 4227 | |
f13a99db AM |
4228 | if (i->output_section != NULL |
4229 | && i->output_section->owner == link_info.output_bfd) | |
abe6ac95 | 4230 | { |
c0f00686 | 4231 | if (link_info.reduce_memory_overheads) |
abe6ac95 AM |
4232 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, i); |
4233 | else | |
4234 | print_all_symbols (i); | |
4235 | ||
5590fba9 NC |
4236 | /* Update print_dot, but make sure that we do not move it |
4237 | backwards - this could happen if we have overlays and a | |
4238 | later overlay is shorter than an earier one. */ | |
4239 | if (addr + TO_ADDR (size) > print_dot) | |
4240 | print_dot = addr + TO_ADDR (size); | |
252b5132 RH |
4241 | } |
4242 | } | |
4243 | ||
4244 | static void | |
1579bae1 | 4245 | print_fill_statement (lang_fill_statement_type *fill) |
252b5132 | 4246 | { |
2c382fb6 AM |
4247 | size_t size; |
4248 | unsigned char *p; | |
4249 | fputs (" FILL mask 0x", config.map_file); | |
4250 | for (p = fill->fill->data, size = fill->fill->size; size != 0; p++, size--) | |
4251 | fprintf (config.map_file, "%02x", *p); | |
4252 | fputs ("\n", config.map_file); | |
252b5132 RH |
4253 | } |
4254 | ||
4255 | static void | |
1579bae1 | 4256 | print_data_statement (lang_data_statement_type *data) |
252b5132 RH |
4257 | { |
4258 | int i; | |
4259 | bfd_vma addr; | |
4260 | bfd_size_type size; | |
4261 | const char *name; | |
4262 | ||
e5caa5e0 | 4263 | init_opb (); |
252b5132 RH |
4264 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
4265 | print_space (); | |
4266 | ||
7fabd029 | 4267 | addr = data->output_offset; |
252b5132 RH |
4268 | if (data->output_section != NULL) |
4269 | addr += data->output_section->vma; | |
4270 | ||
4271 | switch (data->type) | |
4272 | { | |
4273 | default: | |
4274 | abort (); | |
4275 | case BYTE: | |
4276 | size = BYTE_SIZE; | |
4277 | name = "BYTE"; | |
4278 | break; | |
4279 | case SHORT: | |
4280 | size = SHORT_SIZE; | |
4281 | name = "SHORT"; | |
4282 | break; | |
4283 | case LONG: | |
4284 | size = LONG_SIZE; | |
4285 | name = "LONG"; | |
4286 | break; | |
4287 | case QUAD: | |
4288 | size = QUAD_SIZE; | |
4289 | name = "QUAD"; | |
4290 | break; | |
4291 | case SQUAD: | |
4292 | size = QUAD_SIZE; | |
4293 | name = "SQUAD"; | |
4294 | break; | |
4295 | } | |
4296 | ||
4297 | minfo ("0x%V %W %s 0x%v", addr, size, name, data->value); | |
4298 | ||
4299 | if (data->exp->type.node_class != etree_value) | |
4300 | { | |
4301 | print_space (); | |
4302 | exp_print_tree (data->exp); | |
4303 | } | |
4304 | ||
4305 | print_nl (); | |
4306 | ||
e5caa5e0 | 4307 | print_dot = addr + TO_ADDR (size); |
252b5132 RH |
4308 | } |
4309 | ||
4310 | /* Print an address statement. These are generated by options like | |
4311 | -Ttext. */ | |
4312 | ||
4313 | static void | |
1579bae1 | 4314 | print_address_statement (lang_address_statement_type *address) |
252b5132 RH |
4315 | { |
4316 | minfo (_("Address of section %s set to "), address->section_name); | |
4317 | exp_print_tree (address->address); | |
4318 | print_nl (); | |
4319 | } | |
4320 | ||
4321 | /* Print a reloc statement. */ | |
4322 | ||
4323 | static void | |
1579bae1 | 4324 | print_reloc_statement (lang_reloc_statement_type *reloc) |
252b5132 RH |
4325 | { |
4326 | int i; | |
4327 | bfd_vma addr; | |
4328 | bfd_size_type size; | |
4329 | ||
e5caa5e0 | 4330 | init_opb (); |
252b5132 RH |
4331 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
4332 | print_space (); | |
4333 | ||
7fabd029 | 4334 | addr = reloc->output_offset; |
252b5132 RH |
4335 | if (reloc->output_section != NULL) |
4336 | addr += reloc->output_section->vma; | |
4337 | ||
4338 | size = bfd_get_reloc_size (reloc->howto); | |
4339 | ||
4340 | minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name); | |
4341 | ||
4342 | if (reloc->name != NULL) | |
4343 | minfo ("%s+", reloc->name); | |
4344 | else | |
4345 | minfo ("%s+", reloc->section->name); | |
4346 | ||
4347 | exp_print_tree (reloc->addend_exp); | |
4348 | ||
4349 | print_nl (); | |
4350 | ||
e5caa5e0 | 4351 | print_dot = addr + TO_ADDR (size); |
5f992e62 | 4352 | } |
252b5132 RH |
4353 | |
4354 | static void | |
1579bae1 | 4355 | print_padding_statement (lang_padding_statement_type *s) |
252b5132 RH |
4356 | { |
4357 | int len; | |
4358 | bfd_vma addr; | |
4359 | ||
e5caa5e0 | 4360 | init_opb (); |
252b5132 RH |
4361 | minfo (" *fill*"); |
4362 | ||
4363 | len = sizeof " *fill*" - 1; | |
4364 | while (len < SECTION_NAME_MAP_LENGTH) | |
4365 | { | |
4366 | print_space (); | |
4367 | ++len; | |
4368 | } | |
4369 | ||
4370 | addr = s->output_offset; | |
4371 | if (s->output_section != NULL) | |
4372 | addr += s->output_section->vma; | |
5f9b8920 | 4373 | minfo ("0x%V %W ", addr, (bfd_vma) s->size); |
252b5132 | 4374 | |
2c382fb6 AM |
4375 | if (s->fill->size != 0) |
4376 | { | |
4377 | size_t size; | |
4378 | unsigned char *p; | |
4379 | for (p = s->fill->data, size = s->fill->size; size != 0; p++, size--) | |
4380 | fprintf (config.map_file, "%02x", *p); | |
4381 | } | |
252b5132 RH |
4382 | |
4383 | print_nl (); | |
4384 | ||
e5caa5e0 | 4385 | print_dot = addr + TO_ADDR (s->size); |
252b5132 RH |
4386 | } |
4387 | ||
4388 | static void | |
1579bae1 AM |
4389 | print_wild_statement (lang_wild_statement_type *w, |
4390 | lang_output_section_statement_type *os) | |
252b5132 | 4391 | { |
b6bf44ba AM |
4392 | struct wildcard_list *sec; |
4393 | ||
252b5132 RH |
4394 | print_space (); |
4395 | ||
4396 | if (w->filenames_sorted) | |
4397 | minfo ("SORT("); | |
08da4cac | 4398 | if (w->filename != NULL) |
252b5132 RH |
4399 | minfo ("%s", w->filename); |
4400 | else | |
4401 | minfo ("*"); | |
4402 | if (w->filenames_sorted) | |
4403 | minfo (")"); | |
4404 | ||
4405 | minfo ("("); | |
b6bf44ba AM |
4406 | for (sec = w->section_list; sec; sec = sec->next) |
4407 | { | |
4408 | if (sec->spec.sorted) | |
4409 | minfo ("SORT("); | |
4410 | if (sec->spec.exclude_name_list != NULL) | |
4411 | { | |
4412 | name_list *tmp; | |
34786259 | 4413 | minfo ("EXCLUDE_FILE(%s", sec->spec.exclude_name_list->name); |
b6bf44ba | 4414 | for (tmp = sec->spec.exclude_name_list->next; tmp; tmp = tmp->next) |
34786259 AM |
4415 | minfo (" %s", tmp->name); |
4416 | minfo (") "); | |
b6bf44ba AM |
4417 | } |
4418 | if (sec->spec.name != NULL) | |
4419 | minfo ("%s", sec->spec.name); | |
4420 | else | |
4421 | minfo ("*"); | |
4422 | if (sec->spec.sorted) | |
4423 | minfo (")"); | |
34786259 AM |
4424 | if (sec->next) |
4425 | minfo (" "); | |
b6bf44ba | 4426 | } |
252b5132 RH |
4427 | minfo (")"); |
4428 | ||
4429 | print_nl (); | |
4430 | ||
4431 | print_statement_list (w->children.head, os); | |
4432 | } | |
4433 | ||
4434 | /* Print a group statement. */ | |
4435 | ||
4436 | static void | |
1579bae1 AM |
4437 | print_group (lang_group_statement_type *s, |
4438 | lang_output_section_statement_type *os) | |
252b5132 RH |
4439 | { |
4440 | fprintf (config.map_file, "START GROUP\n"); | |
4441 | print_statement_list (s->children.head, os); | |
4442 | fprintf (config.map_file, "END GROUP\n"); | |
4443 | } | |
4444 | ||
4445 | /* Print the list of statements in S. | |
4446 | This can be called for any statement type. */ | |
4447 | ||
4448 | static void | |
1579bae1 AM |
4449 | print_statement_list (lang_statement_union_type *s, |
4450 | lang_output_section_statement_type *os) | |
252b5132 RH |
4451 | { |
4452 | while (s != NULL) | |
4453 | { | |
4454 | print_statement (s, os); | |
bba1a0c0 | 4455 | s = s->header.next; |
252b5132 RH |
4456 | } |
4457 | } | |
4458 | ||
4459 | /* Print the first statement in statement list S. | |
4460 | This can be called for any statement type. */ | |
4461 | ||
4462 | static void | |
1579bae1 AM |
4463 | print_statement (lang_statement_union_type *s, |
4464 | lang_output_section_statement_type *os) | |
252b5132 RH |
4465 | { |
4466 | switch (s->header.type) | |
4467 | { | |
4468 | default: | |
4469 | fprintf (config.map_file, _("Fail with %d\n"), s->header.type); | |
4470 | FAIL (); | |
4471 | break; | |
4472 | case lang_constructors_statement_enum: | |
4473 | if (constructor_list.head != NULL) | |
4474 | { | |
4475 | if (constructors_sorted) | |
4476 | minfo (" SORT (CONSTRUCTORS)\n"); | |
4477 | else | |
4478 | minfo (" CONSTRUCTORS\n"); | |
4479 | print_statement_list (constructor_list.head, os); | |
4480 | } | |
4481 | break; | |
4482 | case lang_wild_statement_enum: | |
4483 | print_wild_statement (&s->wild_statement, os); | |
4484 | break; | |
4485 | case lang_address_statement_enum: | |
4486 | print_address_statement (&s->address_statement); | |
4487 | break; | |
4488 | case lang_object_symbols_statement_enum: | |
4489 | minfo (" CREATE_OBJECT_SYMBOLS\n"); | |
4490 | break; | |
4491 | case lang_fill_statement_enum: | |
4492 | print_fill_statement (&s->fill_statement); | |
4493 | break; | |
4494 | case lang_data_statement_enum: | |
4495 | print_data_statement (&s->data_statement); | |
4496 | break; | |
4497 | case lang_reloc_statement_enum: | |
4498 | print_reloc_statement (&s->reloc_statement); | |
4499 | break; | |
4500 | case lang_input_section_enum: | |
d64703c6 | 4501 | print_input_section (s->input_section.section, FALSE); |
252b5132 RH |
4502 | break; |
4503 | case lang_padding_statement_enum: | |
4504 | print_padding_statement (&s->padding_statement); | |
4505 | break; | |
4506 | case lang_output_section_statement_enum: | |
4507 | print_output_section_statement (&s->output_section_statement); | |
4508 | break; | |
4509 | case lang_assignment_statement_enum: | |
4510 | print_assignment (&s->assignment_statement, os); | |
4511 | break; | |
4512 | case lang_target_statement_enum: | |
4513 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
4514 | break; | |
4515 | case lang_output_statement_enum: | |
4516 | minfo ("OUTPUT(%s", s->output_statement.name); | |
4517 | if (output_target != NULL) | |
4518 | minfo (" %s", output_target); | |
4519 | minfo (")\n"); | |
4520 | break; | |
4521 | case lang_input_statement_enum: | |
4522 | print_input_statement (&s->input_statement); | |
4523 | break; | |
4524 | case lang_group_statement_enum: | |
4525 | print_group (&s->group_statement, os); | |
4526 | break; | |
53d25da6 AM |
4527 | case lang_insert_statement_enum: |
4528 | minfo ("INSERT %s %s\n", | |
4529 | s->insert_statement.is_before ? "BEFORE" : "AFTER", | |
4530 | s->insert_statement.where); | |
4531 | break; | |
252b5132 RH |
4532 | } |
4533 | } | |
4534 | ||
4535 | static void | |
1579bae1 | 4536 | print_statements (void) |
252b5132 RH |
4537 | { |
4538 | print_statement_list (statement_list.head, abs_output_section); | |
4539 | } | |
4540 | ||
4541 | /* Print the first N statements in statement list S to STDERR. | |
4542 | If N == 0, nothing is printed. | |
4543 | If N < 0, the entire list is printed. | |
4544 | Intended to be called from GDB. */ | |
4545 | ||
4546 | void | |
1579bae1 | 4547 | dprint_statement (lang_statement_union_type *s, int n) |
252b5132 RH |
4548 | { |
4549 | FILE *map_save = config.map_file; | |
4550 | ||
4551 | config.map_file = stderr; | |
4552 | ||
4553 | if (n < 0) | |
4554 | print_statement_list (s, abs_output_section); | |
4555 | else | |
4556 | { | |
4557 | while (s && --n >= 0) | |
4558 | { | |
4559 | print_statement (s, abs_output_section); | |
bba1a0c0 | 4560 | s = s->header.next; |
252b5132 RH |
4561 | } |
4562 | } | |
4563 | ||
4564 | config.map_file = map_save; | |
4565 | } | |
4566 | ||
b3327aad | 4567 | static void |
1579bae1 AM |
4568 | insert_pad (lang_statement_union_type **ptr, |
4569 | fill_type *fill, | |
1a69ff95 | 4570 | bfd_size_type alignment_needed, |
1579bae1 AM |
4571 | asection *output_section, |
4572 | bfd_vma dot) | |
252b5132 | 4573 | { |
b7761f11 | 4574 | static fill_type zero_fill; |
e9ee469a | 4575 | lang_statement_union_type *pad = NULL; |
b3327aad | 4576 | |
e9ee469a AM |
4577 | if (ptr != &statement_list.head) |
4578 | pad = ((lang_statement_union_type *) | |
4579 | ((char *) ptr - offsetof (lang_statement_union_type, header.next))); | |
4580 | if (pad != NULL | |
4581 | && pad->header.type == lang_padding_statement_enum | |
4582 | && pad->padding_statement.output_section == output_section) | |
4583 | { | |
4584 | /* Use the existing pad statement. */ | |
4585 | } | |
4586 | else if ((pad = *ptr) != NULL | |
906e58ca NC |
4587 | && pad->header.type == lang_padding_statement_enum |
4588 | && pad->padding_statement.output_section == output_section) | |
252b5132 | 4589 | { |
e9ee469a | 4590 | /* Use the existing pad statement. */ |
252b5132 | 4591 | } |
b3327aad | 4592 | else |
252b5132 | 4593 | { |
b3327aad | 4594 | /* Make a new padding statement, linked into existing chain. */ |
1e9cc1c2 NC |
4595 | pad = (lang_statement_union_type *) |
4596 | stat_alloc (sizeof (lang_padding_statement_type)); | |
b3327aad AM |
4597 | pad->header.next = *ptr; |
4598 | *ptr = pad; | |
4599 | pad->header.type = lang_padding_statement_enum; | |
4600 | pad->padding_statement.output_section = output_section; | |
1579bae1 | 4601 | if (fill == NULL) |
2c382fb6 | 4602 | fill = &zero_fill; |
b3327aad | 4603 | pad->padding_statement.fill = fill; |
252b5132 | 4604 | } |
b3327aad AM |
4605 | pad->padding_statement.output_offset = dot - output_section->vma; |
4606 | pad->padding_statement.size = alignment_needed; | |
eea6121a | 4607 | output_section->size += alignment_needed; |
252b5132 RH |
4608 | } |
4609 | ||
08da4cac KH |
4610 | /* Work out how much this section will move the dot point. */ |
4611 | ||
252b5132 | 4612 | static bfd_vma |
6feb9908 AM |
4613 | size_input_section |
4614 | (lang_statement_union_type **this_ptr, | |
4615 | lang_output_section_statement_type *output_section_statement, | |
4616 | fill_type *fill, | |
4617 | bfd_vma dot) | |
252b5132 RH |
4618 | { |
4619 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
4620 | asection *i = is->section; | |
4621 | ||
dbaa2011 | 4622 | if (i->sec_info_type != SEC_INFO_TYPE_JUST_SYMS |
7b986e99 | 4623 | && (i->flags & SEC_EXCLUDE) == 0) |
252b5132 | 4624 | { |
1a69ff95 | 4625 | bfd_size_type alignment_needed; |
b3327aad AM |
4626 | asection *o; |
4627 | ||
4628 | /* Align this section first to the input sections requirement, | |
4629 | then to the output section's requirement. If this alignment | |
4630 | is greater than any seen before, then record it too. Perform | |
4631 | the alignment by inserting a magic 'padding' statement. */ | |
4632 | ||
252b5132 | 4633 | if (output_section_statement->subsection_alignment != -1) |
b3327aad AM |
4634 | i->alignment_power = output_section_statement->subsection_alignment; |
4635 | ||
4636 | o = output_section_statement->bfd_section; | |
4637 | if (o->alignment_power < i->alignment_power) | |
4638 | o->alignment_power = i->alignment_power; | |
252b5132 | 4639 | |
b3327aad AM |
4640 | alignment_needed = align_power (dot, i->alignment_power) - dot; |
4641 | ||
4642 | if (alignment_needed != 0) | |
4643 | { | |
e5caa5e0 | 4644 | insert_pad (this_ptr, fill, TO_SIZE (alignment_needed), o, dot); |
b3327aad AM |
4645 | dot += alignment_needed; |
4646 | } | |
252b5132 | 4647 | |
08da4cac | 4648 | /* Remember where in the output section this input section goes. */ |
252b5132 | 4649 | |
b3327aad | 4650 | i->output_offset = dot - o->vma; |
252b5132 | 4651 | |
08da4cac | 4652 | /* Mark how big the output section must be to contain this now. */ |
eea6121a AM |
4653 | dot += TO_ADDR (i->size); |
4654 | o->size = TO_SIZE (dot - o->vma); | |
252b5132 RH |
4655 | } |
4656 | else | |
4657 | { | |
4658 | i->output_offset = i->vma - output_section_statement->bfd_section->vma; | |
4659 | } | |
4660 | ||
4661 | return dot; | |
4662 | } | |
4663 | ||
5daa8fe7 L |
4664 | static int |
4665 | sort_sections_by_lma (const void *arg1, const void *arg2) | |
4666 | { | |
4667 | const asection *sec1 = *(const asection **) arg1; | |
4668 | const asection *sec2 = *(const asection **) arg2; | |
4669 | ||
4670 | if (bfd_section_lma (sec1->owner, sec1) | |
4671 | < bfd_section_lma (sec2->owner, sec2)) | |
4672 | return -1; | |
4673 | else if (bfd_section_lma (sec1->owner, sec1) | |
4674 | > bfd_section_lma (sec2->owner, sec2)) | |
4675 | return 1; | |
7f6a71ff JM |
4676 | else if (sec1->id < sec2->id) |
4677 | return -1; | |
4678 | else if (sec1->id > sec2->id) | |
4679 | return 1; | |
5daa8fe7 L |
4680 | |
4681 | return 0; | |
4682 | } | |
4683 | ||
eea6121a | 4684 | #define IGNORE_SECTION(s) \ |
f4eaaf7f AM |
4685 | ((s->flags & SEC_ALLOC) == 0 \ |
4686 | || ((s->flags & SEC_THREAD_LOCAL) != 0 \ | |
de7f8cc8 | 4687 | && (s->flags & SEC_LOAD) == 0)) |
d1778b88 | 4688 | |
252b5132 | 4689 | /* Check to see if any allocated sections overlap with other allocated |
afd7a018 | 4690 | sections. This can happen if a linker script specifies the output |
20e56351 DJ |
4691 | section addresses of the two sections. Also check whether any memory |
4692 | region has overflowed. */ | |
08da4cac | 4693 | |
252b5132 | 4694 | static void |
1579bae1 | 4695 | lang_check_section_addresses (void) |
252b5132 | 4696 | { |
f4427a75 | 4697 | asection *s, *p; |
5daa8fe7 L |
4698 | asection **sections, **spp; |
4699 | unsigned int count; | |
4700 | bfd_vma s_start; | |
4701 | bfd_vma s_end; | |
f4427a75 AM |
4702 | bfd_vma p_start; |
4703 | bfd_vma p_end; | |
5daa8fe7 | 4704 | bfd_size_type amt; |
20e56351 | 4705 | lang_memory_region_type *m; |
5daa8fe7 | 4706 | |
f13a99db | 4707 | if (bfd_count_sections (link_info.output_bfd) <= 1) |
5daa8fe7 L |
4708 | return; |
4709 | ||
f13a99db | 4710 | amt = bfd_count_sections (link_info.output_bfd) * sizeof (asection *); |
1e9cc1c2 | 4711 | sections = (asection **) xmalloc (amt); |
252b5132 RH |
4712 | |
4713 | /* Scan all sections in the output list. */ | |
5daa8fe7 | 4714 | count = 0; |
f13a99db | 4715 | for (s = link_info.output_bfd->sections; s != NULL; s = s->next) |
33275c22 | 4716 | { |
5daa8fe7 | 4717 | /* Only consider loadable sections with real contents. */ |
f4eaaf7f | 4718 | if (!(s->flags & SEC_LOAD) |
e50d6125 | 4719 | || !(s->flags & SEC_ALLOC) |
ec6d26be | 4720 | || s->size == 0) |
33275c22 | 4721 | continue; |
5f992e62 | 4722 | |
5daa8fe7 L |
4723 | sections[count] = s; |
4724 | count++; | |
4725 | } | |
329c1c86 | 4726 | |
5daa8fe7 L |
4727 | if (count <= 1) |
4728 | return; | |
5f992e62 | 4729 | |
5daa8fe7 L |
4730 | qsort (sections, (size_t) count, sizeof (asection *), |
4731 | sort_sections_by_lma); | |
5f992e62 | 4732 | |
5daa8fe7 L |
4733 | spp = sections; |
4734 | s = *spp++; | |
f4427a75 | 4735 | s_start = s->lma; |
5daa8fe7 L |
4736 | s_end = s_start + TO_ADDR (s->size) - 1; |
4737 | for (count--; count; count--) | |
4738 | { | |
4739 | /* We must check the sections' LMA addresses not their VMA | |
4740 | addresses because overlay sections can have overlapping VMAs | |
4741 | but they must have distinct LMAs. */ | |
f4427a75 AM |
4742 | p = s; |
4743 | p_start = s_start; | |
4744 | p_end = s_end; | |
5daa8fe7 | 4745 | s = *spp++; |
f4427a75 | 4746 | s_start = s->lma; |
5daa8fe7 | 4747 | s_end = s_start + TO_ADDR (s->size) - 1; |
5f992e62 | 4748 | |
f4427a75 AM |
4749 | /* Look for an overlap. We have sorted sections by lma, so we |
4750 | know that s_start >= p_start. Besides the obvious case of | |
4751 | overlap when the current section starts before the previous | |
4752 | one ends, we also must have overlap if the previous section | |
4753 | wraps around the address space. */ | |
4754 | if (s_start <= p_end | |
4755 | || p_end < p_start) | |
ec6d26be | 4756 | einfo (_("%X%P: section %s loaded at [%V,%V] overlaps section %s loaded at [%V,%V]\n"), |
f4427a75 | 4757 | s->name, s_start, s_end, p->name, p_start, p_end); |
33275c22 | 4758 | } |
5daa8fe7 L |
4759 | |
4760 | free (sections); | |
20e56351 DJ |
4761 | |
4762 | /* If any memory region has overflowed, report by how much. | |
4763 | We do not issue this diagnostic for regions that had sections | |
4764 | explicitly placed outside their bounds; os_region_check's | |
4765 | diagnostics are adequate for that case. | |
4766 | ||
4767 | FIXME: It is conceivable that m->current - (m->origin + m->length) | |
4768 | might overflow a 32-bit integer. There is, alas, no way to print | |
4769 | a bfd_vma quantity in decimal. */ | |
4770 | for (m = lang_memory_region_list; m; m = m->next) | |
4771 | if (m->had_full_message) | |
4a93e180 NC |
4772 | einfo (_("%X%P: region `%s' overflowed by %ld bytes\n"), |
4773 | m->name_list.name, (long)(m->current - (m->origin + m->length))); | |
20e56351 | 4774 | |
252b5132 RH |
4775 | } |
4776 | ||
562d3460 TW |
4777 | /* Make sure the new address is within the region. We explicitly permit the |
4778 | current address to be at the exact end of the region when the address is | |
4779 | non-zero, in case the region is at the end of addressable memory and the | |
5f992e62 | 4780 | calculation wraps around. */ |
562d3460 TW |
4781 | |
4782 | static void | |
1579bae1 | 4783 | os_region_check (lang_output_section_statement_type *os, |
6bdafbeb | 4784 | lang_memory_region_type *region, |
1579bae1 | 4785 | etree_type *tree, |
91d6fa6a | 4786 | bfd_vma rbase) |
562d3460 TW |
4787 | { |
4788 | if ((region->current < region->origin | |
4789 | || (region->current - region->origin > region->length)) | |
4790 | && ((region->current != region->origin + region->length) | |
91d6fa6a | 4791 | || rbase == 0)) |
562d3460 | 4792 | { |
1579bae1 | 4793 | if (tree != NULL) |
b7a26f91 | 4794 | { |
4a93e180 NC |
4795 | einfo (_("%X%P: address 0x%v of %B section `%s'" |
4796 | " is not within region `%s'\n"), | |
b7a26f91 KH |
4797 | region->current, |
4798 | os->bfd_section->owner, | |
4799 | os->bfd_section->name, | |
4a93e180 | 4800 | region->name_list.name); |
b7a26f91 | 4801 | } |
20e56351 | 4802 | else if (!region->had_full_message) |
b7a26f91 | 4803 | { |
20e56351 DJ |
4804 | region->had_full_message = TRUE; |
4805 | ||
4a93e180 | 4806 | einfo (_("%X%P: %B section `%s' will not fit in region `%s'\n"), |
b7a26f91 | 4807 | os->bfd_section->owner, |
20e56351 | 4808 | os->bfd_section->name, |
4a93e180 | 4809 | region->name_list.name); |
b7a26f91 | 4810 | } |
562d3460 TW |
4811 | } |
4812 | } | |
4813 | ||
252b5132 RH |
4814 | /* Set the sizes for all the output sections. */ |
4815 | ||
2d20f7bf | 4816 | static bfd_vma |
1579bae1 | 4817 | lang_size_sections_1 |
e535e147 | 4818 | (lang_statement_union_type **prev, |
1579bae1 | 4819 | lang_output_section_statement_type *output_section_statement, |
1579bae1 AM |
4820 | fill_type *fill, |
4821 | bfd_vma dot, | |
4822 | bfd_boolean *relax, | |
4823 | bfd_boolean check_regions) | |
252b5132 | 4824 | { |
e535e147 AM |
4825 | lang_statement_union_type *s; |
4826 | ||
252b5132 | 4827 | /* Size up the sections from their constituent parts. */ |
e535e147 | 4828 | for (s = *prev; s != NULL; s = s->header.next) |
252b5132 RH |
4829 | { |
4830 | switch (s->header.type) | |
4831 | { | |
4832 | case lang_output_section_statement_enum: | |
4833 | { | |
e9ee469a | 4834 | bfd_vma newdot, after; |
d1778b88 | 4835 | lang_output_section_statement_type *os; |
cde9e0be | 4836 | lang_memory_region_type *r; |
c5b0a9ef | 4837 | int section_alignment = 0; |
252b5132 | 4838 | |
d1778b88 | 4839 | os = &s->output_section_statement; |
8658f989 AM |
4840 | if (os->constraint == -1) |
4841 | break; | |
4842 | ||
fd68d03d AM |
4843 | /* FIXME: We shouldn't need to zero section vmas for ld -r |
4844 | here, in lang_insert_orphan, or in the default linker scripts. | |
4845 | This is covering for coff backend linker bugs. See PR6945. */ | |
4846 | if (os->addr_tree == NULL | |
4847 | && link_info.relocatable | |
4848 | && (bfd_get_flavour (link_info.output_bfd) | |
4849 | == bfd_target_coff_flavour)) | |
eceda120 | 4850 | os->addr_tree = exp_intop (0); |
a5df8c84 AM |
4851 | if (os->addr_tree != NULL) |
4852 | { | |
cde9e0be | 4853 | os->processed_vma = FALSE; |
a5df8c84 | 4854 | exp_fold_tree (os->addr_tree, bfd_abs_section_ptr, &dot); |
a5df8c84 | 4855 | |
3bf9618b | 4856 | if (expld.result.valid_p) |
7542af2a AM |
4857 | { |
4858 | dot = expld.result.value; | |
4859 | if (expld.result.section != NULL) | |
4860 | dot += expld.result.section->vma; | |
4861 | } | |
3bf9618b | 4862 | else if (expld.phase != lang_mark_phase_enum) |
a5df8c84 AM |
4863 | einfo (_("%F%S: non constant or forward reference" |
4864 | " address expression for section %s\n"), | |
dab69f68 | 4865 | os->addr_tree, os->name); |
a5df8c84 AM |
4866 | } |
4867 | ||
e9ee469a | 4868 | if (os->bfd_section == NULL) |
75ff4589 | 4869 | /* This section was removed or never actually created. */ |
252b5132 RH |
4870 | break; |
4871 | ||
4872 | /* If this is a COFF shared library section, use the size and | |
4873 | address from the input section. FIXME: This is COFF | |
4874 | specific; it would be cleaner if there were some other way | |
4875 | to do this, but nothing simple comes to mind. */ | |
f13a99db AM |
4876 | if (((bfd_get_flavour (link_info.output_bfd) |
4877 | == bfd_target_ecoff_flavour) | |
4878 | || (bfd_get_flavour (link_info.output_bfd) | |
4879 | == bfd_target_coff_flavour)) | |
ebe372c1 | 4880 | && (os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) |
252b5132 | 4881 | { |
08da4cac | 4882 | asection *input; |
252b5132 RH |
4883 | |
4884 | if (os->children.head == NULL | |
bba1a0c0 | 4885 | || os->children.head->header.next != NULL |
6feb9908 AM |
4886 | || (os->children.head->header.type |
4887 | != lang_input_section_enum)) | |
4888 | einfo (_("%P%X: Internal error on COFF shared library" | |
4889 | " section %s\n"), os->name); | |
252b5132 RH |
4890 | |
4891 | input = os->children.head->input_section.section; | |
4892 | bfd_set_section_vma (os->bfd_section->owner, | |
4893 | os->bfd_section, | |
4894 | bfd_section_vma (input->owner, input)); | |
eea6121a | 4895 | os->bfd_section->size = input->size; |
252b5132 RH |
4896 | break; |
4897 | } | |
4898 | ||
a5df8c84 | 4899 | newdot = dot; |
252b5132 RH |
4900 | if (bfd_is_abs_section (os->bfd_section)) |
4901 | { | |
4902 | /* No matter what happens, an abs section starts at zero. */ | |
4903 | ASSERT (os->bfd_section->vma == 0); | |
4904 | } | |
4905 | else | |
4906 | { | |
1579bae1 | 4907 | if (os->addr_tree == NULL) |
252b5132 RH |
4908 | { |
4909 | /* No address specified for this section, get one | |
4910 | from the region specification. */ | |
1579bae1 | 4911 | if (os->region == NULL |
6feb9908 | 4912 | || ((os->bfd_section->flags & (SEC_ALLOC | SEC_LOAD)) |
4a93e180 NC |
4913 | && os->region->name_list.name[0] == '*' |
4914 | && strcmp (os->region->name_list.name, | |
6feb9908 | 4915 | DEFAULT_MEMORY_REGION) == 0)) |
252b5132 RH |
4916 | { |
4917 | os->region = lang_memory_default (os->bfd_section); | |
4918 | } | |
4919 | ||
4920 | /* If a loadable section is using the default memory | |
4921 | region, and some non default memory regions were | |
66184979 | 4922 | defined, issue an error message. */ |
f0636a44 AM |
4923 | if (!os->ignored |
4924 | && !IGNORE_SECTION (os->bfd_section) | |
1049f94e | 4925 | && ! link_info.relocatable |
cf888e70 | 4926 | && check_regions |
4a93e180 | 4927 | && strcmp (os->region->name_list.name, |
6feb9908 | 4928 | DEFAULT_MEMORY_REGION) == 0 |
252b5132 | 4929 | && lang_memory_region_list != NULL |
4a93e180 | 4930 | && (strcmp (lang_memory_region_list->name_list.name, |
a747ee4d | 4931 | DEFAULT_MEMORY_REGION) != 0 |
e9ee469a AM |
4932 | || lang_memory_region_list->next != NULL) |
4933 | && expld.phase != lang_mark_phase_enum) | |
66184979 NC |
4934 | { |
4935 | /* By default this is an error rather than just a | |
4936 | warning because if we allocate the section to the | |
4937 | default memory region we can end up creating an | |
07f3b6ad KH |
4938 | excessively large binary, or even seg faulting when |
4939 | attempting to perform a negative seek. See | |
6feb9908 | 4940 | sources.redhat.com/ml/binutils/2003-04/msg00423.html |
66184979 NC |
4941 | for an example of this. This behaviour can be |
4942 | overridden by the using the --no-check-sections | |
4943 | switch. */ | |
4944 | if (command_line.check_section_addresses) | |
6feb9908 AM |
4945 | einfo (_("%P%F: error: no memory region specified" |
4946 | " for loadable section `%s'\n"), | |
f13a99db | 4947 | bfd_get_section_name (link_info.output_bfd, |
66184979 NC |
4948 | os->bfd_section)); |
4949 | else | |
6feb9908 AM |
4950 | einfo (_("%P: warning: no memory region specified" |
4951 | " for loadable section `%s'\n"), | |
f13a99db | 4952 | bfd_get_section_name (link_info.output_bfd, |
66184979 NC |
4953 | os->bfd_section)); |
4954 | } | |
252b5132 | 4955 | |
e9ee469a | 4956 | newdot = os->region->current; |
c5b0a9ef | 4957 | section_alignment = os->bfd_section->alignment_power; |
252b5132 | 4958 | } |
94b50910 | 4959 | else |
c5b0a9ef | 4960 | section_alignment = os->section_alignment; |
5f992e62 | 4961 | |
7270c5ed | 4962 | /* Align to what the section needs. */ |
c5b0a9ef | 4963 | if (section_alignment > 0) |
94b50910 AM |
4964 | { |
4965 | bfd_vma savedot = newdot; | |
c5b0a9ef | 4966 | newdot = align_power (newdot, section_alignment); |
252b5132 | 4967 | |
94b50910 AM |
4968 | if (newdot != savedot |
4969 | && (config.warn_section_align | |
4970 | || os->addr_tree != NULL) | |
4971 | && expld.phase != lang_mark_phase_enum) | |
4972 | einfo (_("%P: warning: changing start of section" | |
4973 | " %s by %lu bytes\n"), | |
4974 | os->name, (unsigned long) (newdot - savedot)); | |
4975 | } | |
252b5132 | 4976 | |
eceda120 | 4977 | bfd_set_section_vma (0, os->bfd_section, newdot); |
5f992e62 | 4978 | |
252b5132 RH |
4979 | os->bfd_section->output_offset = 0; |
4980 | } | |
4981 | ||
e535e147 | 4982 | lang_size_sections_1 (&os->children.head, os, |
e9ee469a AM |
4983 | os->fill, newdot, relax, check_regions); |
4984 | ||
cde9e0be | 4985 | os->processed_vma = TRUE; |
e9ee469a AM |
4986 | |
4987 | if (bfd_is_abs_section (os->bfd_section) || os->ignored) | |
2f475487 AM |
4988 | /* Except for some special linker created sections, |
4989 | no output section should change from zero size | |
4990 | after strip_excluded_output_sections. A non-zero | |
4991 | size on an ignored section indicates that some | |
4992 | input section was not sized early enough. */ | |
4993 | ASSERT (os->bfd_section->size == 0); | |
cde9e0be | 4994 | else |
e9ee469a | 4995 | { |
cde9e0be AM |
4996 | dot = os->bfd_section->vma; |
4997 | ||
4998 | /* Put the section within the requested block size, or | |
4999 | align at the block boundary. */ | |
5000 | after = ((dot | |
5001 | + TO_ADDR (os->bfd_section->size) | |
5002 | + os->block_value - 1) | |
5003 | & - (bfd_vma) os->block_value); | |
5004 | ||
5005 | os->bfd_section->size = TO_SIZE (after - os->bfd_section->vma); | |
5006 | } | |
5007 | ||
5008 | /* Set section lma. */ | |
5009 | r = os->region; | |
5010 | if (r == NULL) | |
5011 | r = lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE); | |
5012 | ||
5013 | if (os->load_base) | |
5014 | { | |
5015 | bfd_vma lma = exp_get_abs_int (os->load_base, 0, "load base"); | |
5016 | os->bfd_section->lma = lma; | |
e9ee469a | 5017 | } |
07dfcf38 | 5018 | else if (os->lma_region != NULL) |
cde9e0be AM |
5019 | { |
5020 | bfd_vma lma = os->lma_region->current; | |
e9ee469a | 5021 | |
c5b0a9ef AM |
5022 | if (section_alignment > 0) |
5023 | lma = align_power (lma, section_alignment); | |
cde9e0be AM |
5024 | os->bfd_section->lma = lma; |
5025 | } | |
dc0b6aa0 AM |
5026 | else if (r->last_os != NULL |
5027 | && (os->bfd_section->flags & SEC_ALLOC) != 0) | |
cde9e0be AM |
5028 | { |
5029 | bfd_vma lma; | |
5030 | asection *last; | |
5031 | ||
5032 | last = r->last_os->output_section_statement.bfd_section; | |
dc0b6aa0 AM |
5033 | |
5034 | /* A backwards move of dot should be accompanied by | |
5035 | an explicit assignment to the section LMA (ie. | |
91eb6c46 | 5036 | os->load_base set) because backwards moves can |
dc0b6aa0 | 5037 | create overlapping LMAs. */ |
264b6205 | 5038 | if (dot < last->vma |
91eb6c46 AM |
5039 | && os->bfd_section->size != 0 |
5040 | && dot + os->bfd_section->size <= last->vma) | |
dc0b6aa0 | 5041 | { |
dc0b6aa0 AM |
5042 | /* If dot moved backwards then leave lma equal to |
5043 | vma. This is the old default lma, which might | |
5044 | just happen to work when the backwards move is | |
91eb6c46 AM |
5045 | sufficiently large. Nag if this changes anything, |
5046 | so people can fix their linker scripts. */ | |
5047 | ||
5048 | if (last->vma != last->lma) | |
5049 | einfo (_("%P: warning: dot moved backwards before `%s'\n"), | |
5050 | os->name); | |
dc0b6aa0 AM |
5051 | } |
5052 | else | |
cde9e0be | 5053 | { |
152d792f AM |
5054 | /* If this is an overlay, set the current lma to that |
5055 | at the end of the previous section. */ | |
5056 | if (os->sectype == overlay_section) | |
cde9e0be AM |
5057 | lma = last->lma + last->size; |
5058 | ||
5059 | /* Otherwise, keep the same lma to vma relationship | |
5060 | as the previous section. */ | |
5061 | else | |
5062 | lma = dot + last->lma - last->vma; | |
5063 | ||
c5b0a9ef AM |
5064 | if (section_alignment > 0) |
5065 | lma = align_power (lma, section_alignment); | |
cde9e0be AM |
5066 | os->bfd_section->lma = lma; |
5067 | } | |
5068 | } | |
5069 | os->processed_lma = TRUE; | |
5f992e62 | 5070 | |
cde9e0be AM |
5071 | if (bfd_is_abs_section (os->bfd_section) || os->ignored) |
5072 | break; | |
252b5132 | 5073 | |
cde9e0be AM |
5074 | /* Keep track of normal sections using the default |
5075 | lma region. We use this to set the lma for | |
5076 | following sections. Overlays or other linker | |
5077 | script assignment to lma might mean that the | |
dc0b6aa0 AM |
5078 | default lma == vma is incorrect. |
5079 | To avoid warnings about dot moving backwards when using | |
5080 | -Ttext, don't start tracking sections until we find one | |
5081 | of non-zero size or with lma set differently to vma. */ | |
cde9e0be AM |
5082 | if (((os->bfd_section->flags & SEC_HAS_CONTENTS) != 0 |
5083 | || (os->bfd_section->flags & SEC_THREAD_LOCAL) == 0) | |
dc0b6aa0 AM |
5084 | && (os->bfd_section->flags & SEC_ALLOC) != 0 |
5085 | && (os->bfd_section->size != 0 | |
264b6205 AM |
5086 | || (r->last_os == NULL |
5087 | && os->bfd_section->vma != os->bfd_section->lma) | |
5088 | || (r->last_os != NULL | |
5089 | && dot >= (r->last_os->output_section_statement | |
ea0c3cd5 | 5090 | .bfd_section->vma))) |
cde9e0be AM |
5091 | && os->lma_region == NULL |
5092 | && !link_info.relocatable) | |
5093 | r->last_os = s; | |
9f88b410 | 5094 | |
e5caec89 NS |
5095 | /* .tbss sections effectively have zero size. */ |
5096 | if ((os->bfd_section->flags & SEC_HAS_CONTENTS) != 0 | |
5097 | || (os->bfd_section->flags & SEC_THREAD_LOCAL) == 0 | |
5098 | || link_info.relocatable) | |
eea6121a | 5099 | dot += TO_ADDR (os->bfd_section->size); |
e5caec89 | 5100 | |
9f88b410 | 5101 | if (os->update_dot_tree != 0) |
e9ee469a | 5102 | exp_fold_tree (os->update_dot_tree, bfd_abs_section_ptr, &dot); |
9f88b410 | 5103 | |
252b5132 RH |
5104 | /* Update dot in the region ? |
5105 | We only do this if the section is going to be allocated, | |
5106 | since unallocated sections do not contribute to the region's | |
2e76e85a | 5107 | overall size in memory. */ |
1579bae1 | 5108 | if (os->region != NULL |
2e76e85a | 5109 | && (os->bfd_section->flags & (SEC_ALLOC | SEC_LOAD))) |
252b5132 RH |
5110 | { |
5111 | os->region->current = dot; | |
5f992e62 | 5112 | |
cf888e70 NC |
5113 | if (check_regions) |
5114 | /* Make sure the new address is within the region. */ | |
5115 | os_region_check (os, os->region, os->addr_tree, | |
5116 | os->bfd_section->vma); | |
08da4cac | 5117 | |
a2cab753 NS |
5118 | if (os->lma_region != NULL && os->lma_region != os->region |
5119 | && (os->bfd_section->flags & SEC_LOAD)) | |
08da4cac | 5120 | { |
cde9e0be AM |
5121 | os->lma_region->current |
5122 | = os->bfd_section->lma + TO_ADDR (os->bfd_section->size); | |
66e28d60 | 5123 | |
cf888e70 NC |
5124 | if (check_regions) |
5125 | os_region_check (os, os->lma_region, NULL, | |
cde9e0be | 5126 | os->bfd_section->lma); |
08da4cac | 5127 | } |
252b5132 RH |
5128 | } |
5129 | } | |
5130 | break; | |
5131 | ||
5132 | case lang_constructors_statement_enum: | |
e535e147 | 5133 | dot = lang_size_sections_1 (&constructor_list.head, |
2d20f7bf | 5134 | output_section_statement, |
cf888e70 | 5135 | fill, dot, relax, check_regions); |
252b5132 RH |
5136 | break; |
5137 | ||
5138 | case lang_data_statement_enum: | |
5139 | { | |
5140 | unsigned int size = 0; | |
5141 | ||
7fabd029 | 5142 | s->data_statement.output_offset = |
08da4cac | 5143 | dot - output_section_statement->bfd_section->vma; |
252b5132 RH |
5144 | s->data_statement.output_section = |
5145 | output_section_statement->bfd_section; | |
5146 | ||
1b493742 NS |
5147 | /* We might refer to provided symbols in the expression, and |
5148 | need to mark them as needed. */ | |
e9ee469a | 5149 | exp_fold_tree (s->data_statement.exp, bfd_abs_section_ptr, &dot); |
1b493742 | 5150 | |
252b5132 RH |
5151 | switch (s->data_statement.type) |
5152 | { | |
08da4cac KH |
5153 | default: |
5154 | abort (); | |
252b5132 RH |
5155 | case QUAD: |
5156 | case SQUAD: | |
5157 | size = QUAD_SIZE; | |
5158 | break; | |
5159 | case LONG: | |
5160 | size = LONG_SIZE; | |
5161 | break; | |
5162 | case SHORT: | |
5163 | size = SHORT_SIZE; | |
5164 | break; | |
5165 | case BYTE: | |
5166 | size = BYTE_SIZE; | |
5167 | break; | |
5168 | } | |
e5caa5e0 AM |
5169 | if (size < TO_SIZE ((unsigned) 1)) |
5170 | size = TO_SIZE ((unsigned) 1); | |
5171 | dot += TO_ADDR (size); | |
eea6121a | 5172 | output_section_statement->bfd_section->size += size; |
252b5132 RH |
5173 | } |
5174 | break; | |
5175 | ||
5176 | case lang_reloc_statement_enum: | |
5177 | { | |
5178 | int size; | |
5179 | ||
7fabd029 | 5180 | s->reloc_statement.output_offset = |
252b5132 RH |
5181 | dot - output_section_statement->bfd_section->vma; |
5182 | s->reloc_statement.output_section = | |
5183 | output_section_statement->bfd_section; | |
5184 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
e5caa5e0 | 5185 | dot += TO_ADDR (size); |
eea6121a | 5186 | output_section_statement->bfd_section->size += size; |
252b5132 RH |
5187 | } |
5188 | break; | |
5f992e62 | 5189 | |
252b5132 | 5190 | case lang_wild_statement_enum: |
e535e147 | 5191 | dot = lang_size_sections_1 (&s->wild_statement.children.head, |
2d20f7bf | 5192 | output_section_statement, |
cf888e70 | 5193 | fill, dot, relax, check_regions); |
252b5132 RH |
5194 | break; |
5195 | ||
5196 | case lang_object_symbols_statement_enum: | |
5197 | link_info.create_object_symbols_section = | |
5198 | output_section_statement->bfd_section; | |
5199 | break; | |
e9ee469a | 5200 | |
252b5132 RH |
5201 | case lang_output_statement_enum: |
5202 | case lang_target_statement_enum: | |
5203 | break; | |
e9ee469a | 5204 | |
252b5132 RH |
5205 | case lang_input_section_enum: |
5206 | { | |
5207 | asection *i; | |
5208 | ||
e535e147 | 5209 | i = s->input_section.section; |
eea6121a | 5210 | if (relax) |
252b5132 | 5211 | { |
b34976b6 | 5212 | bfd_boolean again; |
252b5132 RH |
5213 | |
5214 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) | |
5215 | einfo (_("%P%F: can't relax section: %E\n")); | |
5216 | if (again) | |
b34976b6 | 5217 | *relax = TRUE; |
252b5132 | 5218 | } |
b3327aad AM |
5219 | dot = size_input_section (prev, output_section_statement, |
5220 | output_section_statement->fill, dot); | |
252b5132 RH |
5221 | } |
5222 | break; | |
e9ee469a | 5223 | |
252b5132 RH |
5224 | case lang_input_statement_enum: |
5225 | break; | |
e9ee469a | 5226 | |
252b5132 | 5227 | case lang_fill_statement_enum: |
08da4cac KH |
5228 | s->fill_statement.output_section = |
5229 | output_section_statement->bfd_section; | |
252b5132 RH |
5230 | |
5231 | fill = s->fill_statement.fill; | |
5232 | break; | |
e9ee469a | 5233 | |
252b5132 RH |
5234 | case lang_assignment_statement_enum: |
5235 | { | |
5236 | bfd_vma newdot = dot; | |
49c13adb | 5237 | etree_type *tree = s->assignment_statement.exp; |
252b5132 | 5238 | |
b10a8ae0 L |
5239 | expld.dataseg.relro = exp_dataseg_relro_none; |
5240 | ||
49c13adb | 5241 | exp_fold_tree (tree, |
408082ec | 5242 | output_section_statement->bfd_section, |
252b5132 RH |
5243 | &newdot); |
5244 | ||
b10a8ae0 L |
5245 | if (expld.dataseg.relro == exp_dataseg_relro_start) |
5246 | { | |
5247 | if (!expld.dataseg.relro_start_stat) | |
5248 | expld.dataseg.relro_start_stat = s; | |
5249 | else | |
5250 | { | |
5251 | ASSERT (expld.dataseg.relro_start_stat == s); | |
5252 | } | |
5253 | } | |
5254 | else if (expld.dataseg.relro == exp_dataseg_relro_end) | |
5255 | { | |
5256 | if (!expld.dataseg.relro_end_stat) | |
5257 | expld.dataseg.relro_end_stat = s; | |
5258 | else | |
5259 | { | |
5260 | ASSERT (expld.dataseg.relro_end_stat == s); | |
5261 | } | |
5262 | } | |
5263 | expld.dataseg.relro = exp_dataseg_relro_none; | |
5264 | ||
49c13adb | 5265 | /* This symbol is relative to this section. */ |
a14a5de3 | 5266 | if ((tree->type.node_class == etree_provided |
49c13adb L |
5267 | || tree->type.node_class == etree_assign) |
5268 | && (tree->assign.dst [0] != '.' | |
5269 | || tree->assign.dst [1] != '\0')) | |
5270 | output_section_statement->section_relative_symbol = 1; | |
5271 | ||
85852e36 | 5272 | if (!output_section_statement->ignored) |
252b5132 | 5273 | { |
252b5132 RH |
5274 | if (output_section_statement == abs_output_section) |
5275 | { | |
5276 | /* If we don't have an output section, then just adjust | |
5277 | the default memory address. */ | |
6feb9908 AM |
5278 | lang_memory_region_lookup (DEFAULT_MEMORY_REGION, |
5279 | FALSE)->current = newdot; | |
252b5132 | 5280 | } |
85852e36 | 5281 | else if (newdot != dot) |
252b5132 | 5282 | { |
b3327aad AM |
5283 | /* Insert a pad after this statement. We can't |
5284 | put the pad before when relaxing, in case the | |
5285 | assignment references dot. */ | |
e5caa5e0 | 5286 | insert_pad (&s->header.next, fill, TO_SIZE (newdot - dot), |
b3327aad AM |
5287 | output_section_statement->bfd_section, dot); |
5288 | ||
5289 | /* Don't neuter the pad below when relaxing. */ | |
5290 | s = s->header.next; | |
9dfc8ab2 | 5291 | |
e9ee469a AM |
5292 | /* If dot is advanced, this implies that the section |
5293 | should have space allocated to it, unless the | |
5294 | user has explicitly stated that the section | |
2e76e85a | 5295 | should not be allocated. */ |
f4eaaf7f AM |
5296 | if (output_section_statement->sectype != noalloc_section |
5297 | && (output_section_statement->sectype != noload_section | |
5298 | || (bfd_get_flavour (link_info.output_bfd) | |
5299 | == bfd_target_elf_flavour))) | |
e9ee469a AM |
5300 | output_section_statement->bfd_section->flags |= SEC_ALLOC; |
5301 | } | |
252b5132 RH |
5302 | dot = newdot; |
5303 | } | |
5304 | } | |
5305 | break; | |
5306 | ||
5307 | case lang_padding_statement_enum: | |
c0c330a7 AM |
5308 | /* If this is the first time lang_size_sections is called, |
5309 | we won't have any padding statements. If this is the | |
5310 | second or later passes when relaxing, we should allow | |
5311 | padding to shrink. If padding is needed on this pass, it | |
5312 | will be added back in. */ | |
5313 | s->padding_statement.size = 0; | |
6e814ff8 AM |
5314 | |
5315 | /* Make sure output_offset is valid. If relaxation shrinks | |
5316 | the section and this pad isn't needed, it's possible to | |
5317 | have output_offset larger than the final size of the | |
5318 | section. bfd_set_section_contents will complain even for | |
5319 | a pad size of zero. */ | |
5320 | s->padding_statement.output_offset | |
5321 | = dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
5322 | break; |
5323 | ||
5324 | case lang_group_statement_enum: | |
e535e147 | 5325 | dot = lang_size_sections_1 (&s->group_statement.children.head, |
2d20f7bf | 5326 | output_section_statement, |
cf888e70 | 5327 | fill, dot, relax, check_regions); |
252b5132 RH |
5328 | break; |
5329 | ||
53d25da6 | 5330 | case lang_insert_statement_enum: |
252b5132 RH |
5331 | break; |
5332 | ||
c0c330a7 | 5333 | /* We can only get here when relaxing is turned on. */ |
252b5132 RH |
5334 | case lang_address_statement_enum: |
5335 | break; | |
53d25da6 AM |
5336 | |
5337 | default: | |
5338 | FAIL (); | |
5339 | break; | |
252b5132 RH |
5340 | } |
5341 | prev = &s->header.next; | |
5342 | } | |
5343 | return dot; | |
5344 | } | |
5345 | ||
591a748a NC |
5346 | /* Callback routine that is used in _bfd_elf_map_sections_to_segments. |
5347 | The BFD library has set NEW_SEGMENT to TRUE iff it thinks that | |
5348 | CURRENT_SECTION and PREVIOUS_SECTION ought to be placed into different | |
5349 | segments. We are allowed an opportunity to override this decision. */ | |
2889e75b NC |
5350 | |
5351 | bfd_boolean | |
5352 | ldlang_override_segment_assignment (struct bfd_link_info * info ATTRIBUTE_UNUSED, | |
5353 | bfd * abfd ATTRIBUTE_UNUSED, | |
5354 | asection * current_section, | |
5355 | asection * previous_section, | |
5356 | bfd_boolean new_segment) | |
5357 | { | |
5358 | lang_output_section_statement_type * cur; | |
5359 | lang_output_section_statement_type * prev; | |
591a748a NC |
5360 | |
5361 | /* The checks below are only necessary when the BFD library has decided | |
5362 | that the two sections ought to be placed into the same segment. */ | |
2889e75b NC |
5363 | if (new_segment) |
5364 | return TRUE; | |
5365 | ||
5366 | /* Paranoia checks. */ | |
5367 | if (current_section == NULL || previous_section == NULL) | |
5368 | return new_segment; | |
5369 | ||
5370 | /* Find the memory regions associated with the two sections. | |
5371 | We call lang_output_section_find() here rather than scanning the list | |
5372 | of output sections looking for a matching section pointer because if | |
591a748a | 5373 | we have a large number of sections then a hash lookup is faster. */ |
2889e75b NC |
5374 | cur = lang_output_section_find (current_section->name); |
5375 | prev = lang_output_section_find (previous_section->name); | |
5376 | ||
591a748a | 5377 | /* More paranoia. */ |
2889e75b NC |
5378 | if (cur == NULL || prev == NULL) |
5379 | return new_segment; | |
5380 | ||
5381 | /* If the regions are different then force the sections to live in | |
591a748a NC |
5382 | different segments. See the email thread starting at the following |
5383 | URL for the reasons why this is necessary: | |
2889e75b NC |
5384 | http://sourceware.org/ml/binutils/2007-02/msg00216.html */ |
5385 | return cur->region != prev->region; | |
5386 | } | |
5387 | ||
e9ee469a AM |
5388 | void |
5389 | one_lang_size_sections_pass (bfd_boolean *relax, bfd_boolean check_regions) | |
2d20f7bf | 5390 | { |
420e579c | 5391 | lang_statement_iteration++; |
e535e147 AM |
5392 | lang_size_sections_1 (&statement_list.head, abs_output_section, |
5393 | 0, 0, relax, check_regions); | |
e9ee469a | 5394 | } |
420e579c | 5395 | |
e9ee469a AM |
5396 | void |
5397 | lang_size_sections (bfd_boolean *relax, bfd_boolean check_regions) | |
5398 | { | |
5399 | expld.phase = lang_allocating_phase_enum; | |
5400 | expld.dataseg.phase = exp_dataseg_none; | |
5401 | ||
5402 | one_lang_size_sections_pass (relax, check_regions); | |
5403 | if (expld.dataseg.phase == exp_dataseg_end_seen | |
5404 | && link_info.relro && expld.dataseg.relro_end) | |
8c37241b JJ |
5405 | { |
5406 | /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_RELRO_END pair was seen, try | |
e9ee469a | 5407 | to put expld.dataseg.relro on a (common) page boundary. */ |
2b60860a | 5408 | bfd_vma min_base, old_base, relro_end, maxpage; |
8c37241b | 5409 | |
e9ee469a | 5410 | expld.dataseg.phase = exp_dataseg_relro_adjust; |
e9ee469a | 5411 | maxpage = expld.dataseg.maxpagesize; |
2b60860a JK |
5412 | /* MIN_BASE is the absolute minimum address we are allowed to start the |
5413 | read-write segment (byte before will be mapped read-only). */ | |
5414 | min_base = (expld.dataseg.min_base + maxpage - 1) & ~(maxpage - 1); | |
5415 | /* OLD_BASE is the address for a feasible minimum address which will | |
5416 | still not cause a data overlap inside MAXPAGE causing file offset skip | |
5417 | by MAXPAGE. */ | |
5418 | old_base = expld.dataseg.base; | |
e9ee469a AM |
5419 | expld.dataseg.base += (-expld.dataseg.relro_end |
5420 | & (expld.dataseg.pagesize - 1)); | |
a4f5ad88 | 5421 | /* Compute the expected PT_GNU_RELRO segment end. */ |
967928e9 AM |
5422 | relro_end = ((expld.dataseg.relro_end + expld.dataseg.pagesize - 1) |
5423 | & ~(expld.dataseg.pagesize - 1)); | |
2b60860a | 5424 | if (min_base + maxpage < expld.dataseg.base) |
e3070fef | 5425 | { |
e9ee469a | 5426 | expld.dataseg.base -= maxpage; |
e3070fef JJ |
5427 | relro_end -= maxpage; |
5428 | } | |
f86a8756 | 5429 | lang_reset_memory_regions (); |
e9ee469a AM |
5430 | one_lang_size_sections_pass (relax, check_regions); |
5431 | if (expld.dataseg.relro_end > relro_end) | |
a4f5ad88 JJ |
5432 | { |
5433 | /* The alignment of sections between DATA_SEGMENT_ALIGN | |
5434 | and DATA_SEGMENT_RELRO_END caused huge padding to be | |
2b60860a JK |
5435 | inserted at DATA_SEGMENT_RELRO_END. Try to start a bit lower so |
5436 | that the section alignments will fit in. */ | |
a4f5ad88 JJ |
5437 | asection *sec; |
5438 | unsigned int max_alignment_power = 0; | |
5439 | ||
5440 | /* Find maximum alignment power of sections between | |
5441 | DATA_SEGMENT_ALIGN and DATA_SEGMENT_RELRO_END. */ | |
f13a99db | 5442 | for (sec = link_info.output_bfd->sections; sec; sec = sec->next) |
e9ee469a AM |
5443 | if (sec->vma >= expld.dataseg.base |
5444 | && sec->vma < expld.dataseg.relro_end | |
a4f5ad88 JJ |
5445 | && sec->alignment_power > max_alignment_power) |
5446 | max_alignment_power = sec->alignment_power; | |
5447 | ||
e9ee469a | 5448 | if (((bfd_vma) 1 << max_alignment_power) < expld.dataseg.pagesize) |
a4f5ad88 | 5449 | { |
2b60860a | 5450 | if (expld.dataseg.base - (1 << max_alignment_power) < old_base) |
e9ee469a AM |
5451 | expld.dataseg.base += expld.dataseg.pagesize; |
5452 | expld.dataseg.base -= (1 << max_alignment_power); | |
f86a8756 | 5453 | lang_reset_memory_regions (); |
e9ee469a | 5454 | one_lang_size_sections_pass (relax, check_regions); |
a4f5ad88 JJ |
5455 | } |
5456 | } | |
e9ee469a AM |
5457 | link_info.relro_start = expld.dataseg.base; |
5458 | link_info.relro_end = expld.dataseg.relro_end; | |
8c37241b | 5459 | } |
e9ee469a | 5460 | else if (expld.dataseg.phase == exp_dataseg_end_seen) |
2d20f7bf JJ |
5461 | { |
5462 | /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_END pair was seen, check whether | |
5463 | a page could be saved in the data segment. */ | |
5464 | bfd_vma first, last; | |
5465 | ||
e9ee469a AM |
5466 | first = -expld.dataseg.base & (expld.dataseg.pagesize - 1); |
5467 | last = expld.dataseg.end & (expld.dataseg.pagesize - 1); | |
2d20f7bf | 5468 | if (first && last |
e9ee469a AM |
5469 | && ((expld.dataseg.base & ~(expld.dataseg.pagesize - 1)) |
5470 | != (expld.dataseg.end & ~(expld.dataseg.pagesize - 1))) | |
5471 | && first + last <= expld.dataseg.pagesize) | |
2d20f7bf | 5472 | { |
e9ee469a | 5473 | expld.dataseg.phase = exp_dataseg_adjust; |
f86a8756 | 5474 | lang_reset_memory_regions (); |
e9ee469a | 5475 | one_lang_size_sections_pass (relax, check_regions); |
2d20f7bf | 5476 | } |
ea7c2e6c AM |
5477 | else |
5478 | expld.dataseg.phase = exp_dataseg_done; | |
2d20f7bf | 5479 | } |
ea7c2e6c AM |
5480 | else |
5481 | expld.dataseg.phase = exp_dataseg_done; | |
2d20f7bf JJ |
5482 | } |
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, | |
5490 | bfd_vma dot) | |
252b5132 | 5491 | { |
1579bae1 | 5492 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
5493 | { |
5494 | switch (s->header.type) | |
5495 | { | |
5496 | case lang_constructors_statement_enum: | |
420e579c | 5497 | dot = lang_do_assignments_1 (constructor_list.head, |
66e28d60 | 5498 | current_os, fill, dot); |
252b5132 RH |
5499 | break; |
5500 | ||
5501 | case lang_output_section_statement_enum: | |
5502 | { | |
d1778b88 | 5503 | lang_output_section_statement_type *os; |
252b5132 | 5504 | |
d1778b88 | 5505 | os = &(s->output_section_statement); |
75ff4589 | 5506 | if (os->bfd_section != NULL && !os->ignored) |
252b5132 RH |
5507 | { |
5508 | dot = os->bfd_section->vma; | |
66e28d60 | 5509 | |
cde9e0be | 5510 | lang_do_assignments_1 (os->children.head, os, os->fill, dot); |
66e28d60 | 5511 | |
3737f867 JJ |
5512 | /* .tbss sections effectively have zero size. */ |
5513 | if ((os->bfd_section->flags & SEC_HAS_CONTENTS) != 0 | |
5514 | || (os->bfd_section->flags & SEC_THREAD_LOCAL) == 0 | |
5515 | || link_info.relocatable) | |
cde9e0be | 5516 | dot += TO_ADDR (os->bfd_section->size); |
5590fba9 NC |
5517 | |
5518 | if (os->update_dot_tree != NULL) | |
5519 | exp_fold_tree (os->update_dot_tree, bfd_abs_section_ptr, &dot); | |
252b5132 RH |
5520 | } |
5521 | } | |
5522 | break; | |
e9ee469a | 5523 | |
252b5132 RH |
5524 | case lang_wild_statement_enum: |
5525 | ||
420e579c | 5526 | dot = lang_do_assignments_1 (s->wild_statement.children.head, |
66e28d60 | 5527 | current_os, fill, dot); |
252b5132 RH |
5528 | break; |
5529 | ||
5530 | case lang_object_symbols_statement_enum: | |
5531 | case lang_output_statement_enum: | |
5532 | case lang_target_statement_enum: | |
252b5132 | 5533 | break; |
e9ee469a | 5534 | |
252b5132 | 5535 | case lang_data_statement_enum: |
e9ee469a AM |
5536 | exp_fold_tree (s->data_statement.exp, bfd_abs_section_ptr, &dot); |
5537 | if (expld.result.valid_p) | |
7542af2a AM |
5538 | { |
5539 | s->data_statement.value = expld.result.value; | |
5540 | if (expld.result.section != NULL) | |
5541 | s->data_statement.value += expld.result.section->vma; | |
5542 | } | |
e9ee469a AM |
5543 | else |
5544 | einfo (_("%F%P: invalid data statement\n")); | |
b7a26f91 KH |
5545 | { |
5546 | unsigned int size; | |
08da4cac KH |
5547 | switch (s->data_statement.type) |
5548 | { | |
5549 | default: | |
5550 | abort (); | |
5551 | case QUAD: | |
5552 | case SQUAD: | |
5553 | size = QUAD_SIZE; | |
5554 | break; | |
5555 | case LONG: | |
5556 | size = LONG_SIZE; | |
5557 | break; | |
5558 | case SHORT: | |
5559 | size = SHORT_SIZE; | |
5560 | break; | |
5561 | case BYTE: | |
5562 | size = BYTE_SIZE; | |
5563 | break; | |
5564 | } | |
e5caa5e0 AM |
5565 | if (size < TO_SIZE ((unsigned) 1)) |
5566 | size = TO_SIZE ((unsigned) 1); | |
5567 | dot += TO_ADDR (size); | |
08da4cac | 5568 | } |
252b5132 RH |
5569 | break; |
5570 | ||
5571 | case lang_reloc_statement_enum: | |
e9ee469a AM |
5572 | exp_fold_tree (s->reloc_statement.addend_exp, |
5573 | bfd_abs_section_ptr, &dot); | |
5574 | if (expld.result.valid_p) | |
5575 | s->reloc_statement.addend_value = expld.result.value; | |
5576 | else | |
5577 | einfo (_("%F%P: invalid reloc statement\n")); | |
e5caa5e0 | 5578 | dot += TO_ADDR (bfd_get_reloc_size (s->reloc_statement.howto)); |
252b5132 RH |
5579 | break; |
5580 | ||
5581 | case lang_input_section_enum: | |
5582 | { | |
5583 | asection *in = s->input_section.section; | |
5584 | ||
57ceae94 | 5585 | if ((in->flags & SEC_EXCLUDE) == 0) |
eea6121a | 5586 | dot += TO_ADDR (in->size); |
252b5132 RH |
5587 | } |
5588 | break; | |
5589 | ||
5590 | case lang_input_statement_enum: | |
5591 | break; | |
e9ee469a | 5592 | |
252b5132 RH |
5593 | case lang_fill_statement_enum: |
5594 | fill = s->fill_statement.fill; | |
5595 | break; | |
252b5132 | 5596 | |
e9ee469a AM |
5597 | case lang_assignment_statement_enum: |
5598 | exp_fold_tree (s->assignment_statement.exp, | |
66e28d60 | 5599 | current_os->bfd_section, |
e9ee469a | 5600 | &dot); |
252b5132 | 5601 | break; |
e9ee469a | 5602 | |
252b5132 | 5603 | case lang_padding_statement_enum: |
e5caa5e0 | 5604 | dot += TO_ADDR (s->padding_statement.size); |
252b5132 RH |
5605 | break; |
5606 | ||
5607 | case lang_group_statement_enum: | |
420e579c | 5608 | dot = lang_do_assignments_1 (s->group_statement.children.head, |
66e28d60 | 5609 | current_os, fill, dot); |
252b5132 RH |
5610 | break; |
5611 | ||
53d25da6 | 5612 | case lang_insert_statement_enum: |
252b5132 | 5613 | break; |
e9ee469a | 5614 | |
252b5132 RH |
5615 | case lang_address_statement_enum: |
5616 | break; | |
53d25da6 AM |
5617 | |
5618 | default: | |
5619 | FAIL (); | |
5620 | break; | |
252b5132 | 5621 | } |
252b5132 RH |
5622 | } |
5623 | return dot; | |
5624 | } | |
5625 | ||
f2241121 | 5626 | void |
2f65ac72 | 5627 | lang_do_assignments (lang_phase_type phase) |
420e579c | 5628 | { |
2f65ac72 | 5629 | expld.phase = phase; |
420e579c | 5630 | lang_statement_iteration++; |
e9ee469a | 5631 | lang_do_assignments_1 (statement_list.head, abs_output_section, NULL, 0); |
420e579c HPN |
5632 | } |
5633 | ||
252b5132 RH |
5634 | /* Fix any .startof. or .sizeof. symbols. When the assemblers see the |
5635 | operator .startof. (section_name), it produces an undefined symbol | |
5636 | .startof.section_name. Similarly, when it sees | |
5637 | .sizeof. (section_name), it produces an undefined symbol | |
5638 | .sizeof.section_name. For all the output sections, we look for | |
5639 | such symbols, and set them to the correct value. */ | |
5640 | ||
5641 | static void | |
1579bae1 | 5642 | lang_set_startof (void) |
252b5132 RH |
5643 | { |
5644 | asection *s; | |
5645 | ||
1049f94e | 5646 | if (link_info.relocatable) |
252b5132 RH |
5647 | return; |
5648 | ||
f13a99db | 5649 | for (s = link_info.output_bfd->sections; s != NULL; s = s->next) |
252b5132 RH |
5650 | { |
5651 | const char *secname; | |
5652 | char *buf; | |
5653 | struct bfd_link_hash_entry *h; | |
5654 | ||
f13a99db | 5655 | secname = bfd_get_section_name (link_info.output_bfd, s); |
1e9cc1c2 | 5656 | buf = (char *) xmalloc (10 + strlen (secname)); |
252b5132 RH |
5657 | |
5658 | sprintf (buf, ".startof.%s", secname); | |
b34976b6 | 5659 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
5660 | if (h != NULL && h->type == bfd_link_hash_undefined) |
5661 | { | |
5662 | h->type = bfd_link_hash_defined; | |
f13a99db | 5663 | h->u.def.value = bfd_get_section_vma (link_info.output_bfd, s); |
252b5132 RH |
5664 | h->u.def.section = bfd_abs_section_ptr; |
5665 | } | |
5666 | ||
5667 | sprintf (buf, ".sizeof.%s", secname); | |
b34976b6 | 5668 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
5669 | if (h != NULL && h->type == bfd_link_hash_undefined) |
5670 | { | |
5671 | h->type = bfd_link_hash_defined; | |
eea6121a | 5672 | h->u.def.value = TO_ADDR (s->size); |
252b5132 RH |
5673 | h->u.def.section = bfd_abs_section_ptr; |
5674 | } | |
5675 | ||
5676 | free (buf); | |
5677 | } | |
5678 | } | |
5679 | ||
5680 | static void | |
750877ba | 5681 | lang_end (void) |
252b5132 RH |
5682 | { |
5683 | struct bfd_link_hash_entry *h; | |
b34976b6 | 5684 | bfd_boolean warn; |
252b5132 | 5685 | |
ac69cbc6 | 5686 | if ((link_info.relocatable && !link_info.gc_sections) |
4bf27aa9 | 5687 | || (link_info.shared && !link_info.executable)) |
71934f94 | 5688 | warn = entry_from_cmdline; |
252b5132 | 5689 | else |
b34976b6 | 5690 | warn = TRUE; |
252b5132 | 5691 | |
ac69cbc6 TG |
5692 | /* Force the user to specify a root when generating a relocatable with |
5693 | --gc-sections. */ | |
5694 | if (link_info.gc_sections && link_info.relocatable | |
24898b70 | 5695 | && !(entry_from_cmdline || undef_from_cmdline)) |
ac69cbc6 TG |
5696 | einfo (_("%P%F: gc-sections requires either an entry or " |
5697 | "an undefined symbol\n")); | |
5698 | ||
1579bae1 | 5699 | if (entry_symbol.name == NULL) |
252b5132 | 5700 | { |
a359509e ZW |
5701 | /* No entry has been specified. Look for the default entry, but |
5702 | don't warn if we don't find it. */ | |
5703 | entry_symbol.name = entry_symbol_default; | |
b34976b6 | 5704 | warn = FALSE; |
252b5132 RH |
5705 | } |
5706 | ||
e3e942e9 | 5707 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name, |
b34976b6 | 5708 | FALSE, FALSE, TRUE); |
1579bae1 | 5709 | if (h != NULL |
252b5132 RH |
5710 | && (h->type == bfd_link_hash_defined |
5711 | || h->type == bfd_link_hash_defweak) | |
5712 | && h->u.def.section->output_section != NULL) | |
5713 | { | |
5714 | bfd_vma val; | |
5715 | ||
5716 | val = (h->u.def.value | |
f13a99db | 5717 | + bfd_get_section_vma (link_info.output_bfd, |
252b5132 RH |
5718 | h->u.def.section->output_section) |
5719 | + h->u.def.section->output_offset); | |
f13a99db | 5720 | if (! bfd_set_start_address (link_info.output_bfd, val)) |
e3e942e9 | 5721 | einfo (_("%P%F:%s: can't set start address\n"), entry_symbol.name); |
252b5132 RH |
5722 | } |
5723 | else | |
5724 | { | |
5725 | bfd_vma val; | |
5f992e62 | 5726 | const char *send; |
252b5132 RH |
5727 | |
5728 | /* We couldn't find the entry symbol. Try parsing it as a | |
afd7a018 | 5729 | number. */ |
e3e942e9 | 5730 | val = bfd_scan_vma (entry_symbol.name, &send, 0); |
252b5132 RH |
5731 | if (*send == '\0') |
5732 | { | |
f13a99db | 5733 | if (! bfd_set_start_address (link_info.output_bfd, val)) |
252b5132 RH |
5734 | einfo (_("%P%F: can't set start address\n")); |
5735 | } | |
5736 | else | |
5737 | { | |
5738 | asection *ts; | |
5739 | ||
5740 | /* Can't find the entry symbol, and it's not a number. Use | |
5741 | the first address in the text section. */ | |
f13a99db | 5742 | ts = bfd_get_section_by_name (link_info.output_bfd, entry_section); |
1579bae1 | 5743 | if (ts != NULL) |
252b5132 RH |
5744 | { |
5745 | if (warn) | |
6feb9908 AM |
5746 | einfo (_("%P: warning: cannot find entry symbol %s;" |
5747 | " defaulting to %V\n"), | |
e3e942e9 | 5748 | entry_symbol.name, |
f13a99db AM |
5749 | bfd_get_section_vma (link_info.output_bfd, ts)); |
5750 | if (!(bfd_set_start_address | |
5751 | (link_info.output_bfd, | |
5752 | bfd_get_section_vma (link_info.output_bfd, ts)))) | |
252b5132 RH |
5753 | einfo (_("%P%F: can't set start address\n")); |
5754 | } | |
5755 | else | |
5756 | { | |
5757 | if (warn) | |
6feb9908 AM |
5758 | einfo (_("%P: warning: cannot find entry symbol %s;" |
5759 | " not setting start address\n"), | |
e3e942e9 | 5760 | entry_symbol.name); |
252b5132 RH |
5761 | } |
5762 | } | |
5763 | } | |
420e579c | 5764 | |
7115639b AM |
5765 | /* Don't bfd_hash_table_free (&lang_definedness_table); |
5766 | map file output may result in a call of lang_track_definedness. */ | |
252b5132 RH |
5767 | } |
5768 | ||
5769 | /* This is a small function used when we want to ignore errors from | |
5770 | BFD. */ | |
5771 | ||
5772 | static void | |
87f2a346 | 5773 | ignore_bfd_errors (const char *s ATTRIBUTE_UNUSED, ...) |
252b5132 RH |
5774 | { |
5775 | /* Don't do anything. */ | |
5776 | } | |
5777 | ||
5778 | /* Check that the architecture of all the input files is compatible | |
5779 | with the output file. Also call the backend to let it do any | |
5780 | other checking that is needed. */ | |
5781 | ||
5782 | static void | |
1579bae1 | 5783 | lang_check (void) |
252b5132 RH |
5784 | { |
5785 | lang_statement_union_type *file; | |
5786 | bfd *input_bfd; | |
5f992e62 | 5787 | const bfd_arch_info_type *compatible; |
252b5132 | 5788 | |
1579bae1 | 5789 | for (file = file_chain.head; file != NULL; file = file->input_statement.next) |
252b5132 | 5790 | { |
422b6f14 DK |
5791 | #ifdef ENABLE_PLUGINS |
5792 | /* Don't check format of files claimed by plugin. */ | |
66be1055 | 5793 | if (file->input_statement.flags.claimed) |
422b6f14 DK |
5794 | continue; |
5795 | #endif /* ENABLE_PLUGINS */ | |
252b5132 | 5796 | input_bfd = file->input_statement.the_bfd; |
6feb9908 | 5797 | compatible |
f13a99db | 5798 | = bfd_arch_get_compatible (input_bfd, link_info.output_bfd, |
6feb9908 | 5799 | command_line.accept_unknown_input_arch); |
30cba025 AM |
5800 | |
5801 | /* In general it is not possible to perform a relocatable | |
5802 | link between differing object formats when the input | |
5803 | file has relocations, because the relocations in the | |
5804 | input format may not have equivalent representations in | |
5805 | the output format (and besides BFD does not translate | |
5806 | relocs for other link purposes than a final link). */ | |
1049f94e | 5807 | if ((link_info.relocatable || link_info.emitrelocations) |
30cba025 | 5808 | && (compatible == NULL |
f13a99db AM |
5809 | || (bfd_get_flavour (input_bfd) |
5810 | != bfd_get_flavour (link_info.output_bfd))) | |
30cba025 AM |
5811 | && (bfd_get_file_flags (input_bfd) & HAS_RELOC) != 0) |
5812 | { | |
6feb9908 AM |
5813 | einfo (_("%P%F: Relocatable linking with relocations from" |
5814 | " format %s (%B) to format %s (%B) is not supported\n"), | |
30cba025 | 5815 | bfd_get_target (input_bfd), input_bfd, |
f13a99db | 5816 | bfd_get_target (link_info.output_bfd), link_info.output_bfd); |
30cba025 AM |
5817 | /* einfo with %F exits. */ |
5818 | } | |
5819 | ||
252b5132 RH |
5820 | if (compatible == NULL) |
5821 | { | |
5822 | if (command_line.warn_mismatch) | |
9e7750f2 | 5823 | einfo (_("%P%X: %s architecture of input file `%B'" |
6feb9908 | 5824 | " is incompatible with %s output\n"), |
252b5132 | 5825 | bfd_printable_name (input_bfd), input_bfd, |
f13a99db | 5826 | bfd_printable_name (link_info.output_bfd)); |
252b5132 | 5827 | } |
b9247304 | 5828 | else if (bfd_count_sections (input_bfd)) |
252b5132 | 5829 | { |
b9247304 | 5830 | /* If the input bfd has no contents, it shouldn't set the |
b7a26f91 | 5831 | private data of the output bfd. */ |
b9247304 | 5832 | |
252b5132 RH |
5833 | bfd_error_handler_type pfn = NULL; |
5834 | ||
5835 | /* If we aren't supposed to warn about mismatched input | |
afd7a018 AM |
5836 | files, temporarily set the BFD error handler to a |
5837 | function which will do nothing. We still want to call | |
5838 | bfd_merge_private_bfd_data, since it may set up | |
5839 | information which is needed in the output file. */ | |
252b5132 RH |
5840 | if (! command_line.warn_mismatch) |
5841 | pfn = bfd_set_error_handler (ignore_bfd_errors); | |
f13a99db | 5842 | if (! bfd_merge_private_bfd_data (input_bfd, link_info.output_bfd)) |
252b5132 RH |
5843 | { |
5844 | if (command_line.warn_mismatch) | |
6feb9908 AM |
5845 | einfo (_("%P%X: failed to merge target specific data" |
5846 | " of file %B\n"), input_bfd); | |
252b5132 RH |
5847 | } |
5848 | if (! command_line.warn_mismatch) | |
5849 | bfd_set_error_handler (pfn); | |
5850 | } | |
5851 | } | |
5852 | } | |
5853 | ||
5854 | /* Look through all the global common symbols and attach them to the | |
5855 | correct section. The -sort-common command line switch may be used | |
de7dd2bd | 5856 | to roughly sort the entries by alignment. */ |
252b5132 RH |
5857 | |
5858 | static void | |
1579bae1 | 5859 | lang_common (void) |
252b5132 | 5860 | { |
4818e05f AM |
5861 | if (command_line.inhibit_common_definition) |
5862 | return; | |
1049f94e | 5863 | if (link_info.relocatable |
252b5132 RH |
5864 | && ! command_line.force_common_definition) |
5865 | return; | |
5866 | ||
5867 | if (! config.sort_common) | |
1579bae1 | 5868 | bfd_link_hash_traverse (link_info.hash, lang_one_common, NULL); |
252b5132 RH |
5869 | else |
5870 | { | |
de7dd2bd NC |
5871 | unsigned int power; |
5872 | ||
5873 | if (config.sort_common == sort_descending) | |
967928e9 AM |
5874 | { |
5875 | for (power = 4; power > 0; power--) | |
5876 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
5877 | ||
5878 | power = 0; | |
5879 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
5880 | } | |
de7dd2bd | 5881 | else |
967928e9 AM |
5882 | { |
5883 | for (power = 0; power <= 4; power++) | |
5884 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
252b5132 | 5885 | |
967928e9 | 5886 | power = UINT_MAX; |
de7dd2bd NC |
5887 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); |
5888 | } | |
252b5132 RH |
5889 | } |
5890 | } | |
5891 | ||
5892 | /* Place one common symbol in the correct section. */ | |
5893 | ||
b34976b6 | 5894 | static bfd_boolean |
1579bae1 | 5895 | lang_one_common (struct bfd_link_hash_entry *h, void *info) |
252b5132 RH |
5896 | { |
5897 | unsigned int power_of_two; | |
5898 | bfd_vma size; | |
5899 | asection *section; | |
5900 | ||
5901 | if (h->type != bfd_link_hash_common) | |
b34976b6 | 5902 | return TRUE; |
252b5132 RH |
5903 | |
5904 | size = h->u.c.size; | |
5905 | power_of_two = h->u.c.p->alignment_power; | |
5906 | ||
de7dd2bd NC |
5907 | if (config.sort_common == sort_descending |
5908 | && power_of_two < *(unsigned int *) info) | |
5909 | return TRUE; | |
5910 | else if (config.sort_common == sort_ascending | |
967928e9 | 5911 | && power_of_two > *(unsigned int *) info) |
b34976b6 | 5912 | return TRUE; |
252b5132 RH |
5913 | |
5914 | section = h->u.c.p->section; | |
3023e3f6 RS |
5915 | if (!bfd_define_common_symbol (link_info.output_bfd, &link_info, h)) |
5916 | einfo (_("%P%F: Could not define common symbol `%T': %E\n"), | |
5917 | h->root.string); | |
252b5132 RH |
5918 | |
5919 | if (config.map_file != NULL) | |
5920 | { | |
b34976b6 | 5921 | static bfd_boolean header_printed; |
252b5132 RH |
5922 | int len; |
5923 | char *name; | |
5924 | char buf[50]; | |
5925 | ||
5926 | if (! header_printed) | |
5927 | { | |
5928 | minfo (_("\nAllocating common symbols\n")); | |
5929 | minfo (_("Common symbol size file\n\n")); | |
b34976b6 | 5930 | header_printed = TRUE; |
252b5132 RH |
5931 | } |
5932 | ||
f13a99db | 5933 | name = bfd_demangle (link_info.output_bfd, h->root.string, |
73705ac3 | 5934 | DMGL_ANSI | DMGL_PARAMS); |
d7d4c8de AM |
5935 | if (name == NULL) |
5936 | { | |
5937 | minfo ("%s", h->root.string); | |
5938 | len = strlen (h->root.string); | |
5939 | } | |
5940 | else | |
5941 | { | |
5942 | minfo ("%s", name); | |
5943 | len = strlen (name); | |
5944 | free (name); | |
5945 | } | |
252b5132 RH |
5946 | |
5947 | if (len >= 19) | |
5948 | { | |
5949 | print_nl (); | |
5950 | len = 0; | |
5951 | } | |
5952 | while (len < 20) | |
5953 | { | |
5954 | print_space (); | |
5955 | ++len; | |
5956 | } | |
5957 | ||
5958 | minfo ("0x"); | |
5959 | if (size <= 0xffffffff) | |
5960 | sprintf (buf, "%lx", (unsigned long) size); | |
5961 | else | |
5962 | sprintf_vma (buf, size); | |
5963 | minfo ("%s", buf); | |
5964 | len = strlen (buf); | |
5965 | ||
5966 | while (len < 16) | |
5967 | { | |
5968 | print_space (); | |
5969 | ++len; | |
5970 | } | |
5971 | ||
5972 | minfo ("%B\n", section->owner); | |
5973 | } | |
5974 | ||
b34976b6 | 5975 | return TRUE; |
252b5132 RH |
5976 | } |
5977 | ||
08da4cac KH |
5978 | /* Run through the input files and ensure that every input section has |
5979 | somewhere to go. If one is found without a destination then create | |
5980 | an input request and place it into the statement tree. */ | |
252b5132 RH |
5981 | |
5982 | static void | |
1579bae1 | 5983 | lang_place_orphans (void) |
252b5132 | 5984 | { |
e50d8076 | 5985 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
252b5132 RH |
5986 | { |
5987 | asection *s; | |
5988 | ||
1579bae1 | 5989 | for (s = file->the_bfd->sections; s != NULL; s = s->next) |
252b5132 | 5990 | { |
1579bae1 | 5991 | if (s->output_section == NULL) |
252b5132 | 5992 | { |
396a2467 | 5993 | /* This section of the file is not attached, root |
afd7a018 | 5994 | around for a sensible place for it to go. */ |
252b5132 | 5995 | |
66be1055 | 5996 | if (file->flags.just_syms) |
1449d79b AM |
5997 | bfd_link_just_syms (file->the_bfd, s, &link_info); |
5998 | else if ((s->flags & SEC_EXCLUDE) != 0) | |
164e712d | 5999 | s->output_section = bfd_abs_section_ptr; |
252b5132 RH |
6000 | else if (strcmp (s->name, "COMMON") == 0) |
6001 | { | |
6002 | /* This is a lonely common section which must have | |
6003 | come from an archive. We attach to the section | |
6004 | with the wildcard. */ | |
1049f94e | 6005 | if (! link_info.relocatable |
252b5132 RH |
6006 | || command_line.force_common_definition) |
6007 | { | |
6008 | if (default_common_section == NULL) | |
66c103b7 AM |
6009 | default_common_section |
6010 | = lang_output_section_statement_lookup (".bss", 0, | |
6011 | TRUE); | |
39dcfe18 | 6012 | lang_add_section (&default_common_section->children, s, |
7b986e99 | 6013 | default_common_section); |
252b5132 RH |
6014 | } |
6015 | } | |
252b5132 RH |
6016 | else |
6017 | { | |
bcacc0f5 | 6018 | const char *name = s->name; |
8a99a385 | 6019 | int constraint = 0; |
252b5132 | 6020 | |
d0bf826b AM |
6021 | if (config.unique_orphan_sections |
6022 | || unique_section_p (s, NULL)) | |
8a99a385 | 6023 | constraint = SPECIAL; |
bcacc0f5 | 6024 | |
8a99a385 | 6025 | if (!ldemul_place_orphan (s, name, constraint)) |
bcacc0f5 AM |
6026 | { |
6027 | lang_output_section_statement_type *os; | |
8a99a385 AM |
6028 | os = lang_output_section_statement_lookup (name, |
6029 | constraint, | |
bcacc0f5 | 6030 | TRUE); |
30920cab AM |
6031 | if (os->addr_tree == NULL |
6032 | && (link_info.relocatable | |
6033 | || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)) | |
6034 | os->addr_tree = exp_intop (0); | |
bcacc0f5 AM |
6035 | lang_add_section (&os->children, s, os); |
6036 | } | |
252b5132 RH |
6037 | } |
6038 | } | |
6039 | } | |
6040 | } | |
6041 | } | |
6042 | ||
252b5132 | 6043 | void |
1579bae1 | 6044 | lang_set_flags (lang_memory_region_type *ptr, const char *flags, int invert) |
252b5132 | 6045 | { |
aa8804e4 | 6046 | flagword *ptr_flags; |
252b5132 | 6047 | |
aa8804e4 | 6048 | ptr_flags = invert ? &ptr->not_flags : &ptr->flags; |
252b5132 RH |
6049 | while (*flags) |
6050 | { | |
6051 | switch (*flags) | |
6052 | { | |
252b5132 RH |
6053 | case 'A': case 'a': |
6054 | *ptr_flags |= SEC_ALLOC; | |
6055 | break; | |
6056 | ||
6057 | case 'R': case 'r': | |
6058 | *ptr_flags |= SEC_READONLY; | |
6059 | break; | |
6060 | ||
6061 | case 'W': case 'w': | |
6062 | *ptr_flags |= SEC_DATA; | |
6063 | break; | |
6064 | ||
6065 | case 'X': case 'x': | |
6066 | *ptr_flags |= SEC_CODE; | |
6067 | break; | |
6068 | ||
6069 | case 'L': case 'l': | |
6070 | case 'I': case 'i': | |
6071 | *ptr_flags |= SEC_LOAD; | |
6072 | break; | |
6073 | ||
6074 | default: | |
6075 | einfo (_("%P%F: invalid syntax in flags\n")); | |
6076 | break; | |
6077 | } | |
6078 | flags++; | |
6079 | } | |
6080 | } | |
6081 | ||
6082 | /* Call a function on each input file. This function will be called | |
6083 | on an archive, but not on the elements. */ | |
6084 | ||
6085 | void | |
1579bae1 | 6086 | lang_for_each_input_file (void (*func) (lang_input_statement_type *)) |
252b5132 RH |
6087 | { |
6088 | lang_input_statement_type *f; | |
6089 | ||
6090 | for (f = (lang_input_statement_type *) input_file_chain.head; | |
6091 | f != NULL; | |
6092 | f = (lang_input_statement_type *) f->next_real_file) | |
6093 | func (f); | |
6094 | } | |
6095 | ||
6096 | /* Call a function on each file. The function will be called on all | |
6097 | the elements of an archive which are included in the link, but will | |
6098 | not be called on the archive file itself. */ | |
6099 | ||
6100 | void | |
1579bae1 | 6101 | lang_for_each_file (void (*func) (lang_input_statement_type *)) |
252b5132 | 6102 | { |
e50d8076 | 6103 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 RH |
6104 | { |
6105 | func (f); | |
6106 | } | |
6107 | } | |
6108 | ||
252b5132 | 6109 | void |
1579bae1 | 6110 | ldlang_add_file (lang_input_statement_type *entry) |
252b5132 | 6111 | { |
252b5132 RH |
6112 | lang_statement_append (&file_chain, |
6113 | (lang_statement_union_type *) entry, | |
6114 | &entry->next); | |
6115 | ||
6116 | /* The BFD linker needs to have a list of all input BFDs involved in | |
6117 | a link. */ | |
1579bae1 | 6118 | ASSERT (entry->the_bfd->link_next == NULL); |
f13a99db | 6119 | ASSERT (entry->the_bfd != link_info.output_bfd); |
a9a4c53e AM |
6120 | |
6121 | *link_info.input_bfds_tail = entry->the_bfd; | |
6122 | link_info.input_bfds_tail = &entry->the_bfd->link_next; | |
1579bae1 | 6123 | entry->the_bfd->usrdata = entry; |
252b5132 RH |
6124 | bfd_set_gp_size (entry->the_bfd, g_switch_value); |
6125 | ||
6126 | /* Look through the sections and check for any which should not be | |
6127 | included in the link. We need to do this now, so that we can | |
6128 | notice when the backend linker tries to report multiple | |
6129 | definition errors for symbols which are in sections we aren't | |
6130 | going to link. FIXME: It might be better to entirely ignore | |
6131 | symbols which are defined in sections which are going to be | |
6132 | discarded. This would require modifying the backend linker for | |
6133 | each backend which might set the SEC_LINK_ONCE flag. If we do | |
6134 | this, we should probably handle SEC_EXCLUDE in the same way. */ | |
6135 | ||
1579bae1 | 6136 | bfd_map_over_sections (entry->the_bfd, section_already_linked, entry); |
252b5132 RH |
6137 | } |
6138 | ||
6139 | void | |
1579bae1 | 6140 | lang_add_output (const char *name, int from_script) |
252b5132 RH |
6141 | { |
6142 | /* Make -o on command line override OUTPUT in script. */ | |
7c519c12 | 6143 | if (!had_output_filename || !from_script) |
252b5132 RH |
6144 | { |
6145 | output_filename = name; | |
b34976b6 | 6146 | had_output_filename = TRUE; |
252b5132 RH |
6147 | } |
6148 | } | |
6149 | ||
252b5132 RH |
6150 | static lang_output_section_statement_type *current_section; |
6151 | ||
6152 | static int | |
1579bae1 | 6153 | topower (int x) |
252b5132 RH |
6154 | { |
6155 | unsigned int i = 1; | |
6156 | int l; | |
6157 | ||
6158 | if (x < 0) | |
6159 | return -1; | |
6160 | ||
5f992e62 | 6161 | for (l = 0; l < 32; l++) |
252b5132 RH |
6162 | { |
6163 | if (i >= (unsigned int) x) | |
6164 | return l; | |
6165 | i <<= 1; | |
6166 | } | |
6167 | ||
6168 | return 0; | |
6169 | } | |
6170 | ||
aea4bd9d | 6171 | lang_output_section_statement_type * |
1579bae1 AM |
6172 | lang_enter_output_section_statement (const char *output_section_statement_name, |
6173 | etree_type *address_exp, | |
6174 | enum section_type sectype, | |
1579bae1 AM |
6175 | etree_type *align, |
6176 | etree_type *subalign, | |
0841712e JJ |
6177 | etree_type *ebase, |
6178 | int constraint) | |
252b5132 RH |
6179 | { |
6180 | lang_output_section_statement_type *os; | |
6181 | ||
66c103b7 AM |
6182 | os = lang_output_section_statement_lookup (output_section_statement_name, |
6183 | constraint, TRUE); | |
967928e9 | 6184 | current_section = os; |
252b5132 | 6185 | |
1579bae1 | 6186 | if (os->addr_tree == NULL) |
08da4cac KH |
6187 | { |
6188 | os->addr_tree = address_exp; | |
6189 | } | |
252b5132 RH |
6190 | os->sectype = sectype; |
6191 | if (sectype != noload_section) | |
6192 | os->flags = SEC_NO_FLAGS; | |
6193 | else | |
6194 | os->flags = SEC_NEVER_LOAD; | |
e5caa5e0 | 6195 | os->block_value = 1; |
66c103b7 AM |
6196 | |
6197 | /* Make next things chain into subchain of this. */ | |
bde18da4 | 6198 | push_stat_ptr (&os->children); |
252b5132 | 6199 | |
08da4cac | 6200 | os->subsection_alignment = |
e9ee469a | 6201 | topower (exp_get_value_int (subalign, -1, "subsection alignment")); |
08da4cac | 6202 | os->section_alignment = |
e9ee469a | 6203 | topower (exp_get_value_int (align, -1, "section alignment")); |
252b5132 RH |
6204 | |
6205 | os->load_base = ebase; | |
aea4bd9d | 6206 | return os; |
252b5132 RH |
6207 | } |
6208 | ||
252b5132 | 6209 | void |
1579bae1 | 6210 | lang_final (void) |
252b5132 | 6211 | { |
d3ce72d0 NC |
6212 | lang_output_statement_type *new_stmt; |
6213 | ||
6214 | new_stmt = new_stat (lang_output_statement, stat_ptr); | |
6215 | new_stmt->name = output_filename; | |
252b5132 | 6216 | |
252b5132 RH |
6217 | } |
6218 | ||
08da4cac KH |
6219 | /* Reset the current counters in the regions. */ |
6220 | ||
e3dc8847 | 6221 | void |
1579bae1 | 6222 | lang_reset_memory_regions (void) |
252b5132 RH |
6223 | { |
6224 | lang_memory_region_type *p = lang_memory_region_list; | |
b3327aad | 6225 | asection *o; |
e9ee469a | 6226 | lang_output_section_statement_type *os; |
252b5132 | 6227 | |
1579bae1 | 6228 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
252b5132 | 6229 | { |
252b5132 | 6230 | p->current = p->origin; |
66e28d60 | 6231 | p->last_os = NULL; |
252b5132 | 6232 | } |
b3327aad | 6233 | |
e9ee469a AM |
6234 | for (os = &lang_output_section_statement.head->output_section_statement; |
6235 | os != NULL; | |
6236 | os = os->next) | |
cde9e0be AM |
6237 | { |
6238 | os->processed_vma = FALSE; | |
6239 | os->processed_lma = FALSE; | |
6240 | } | |
e9ee469a | 6241 | |
f13a99db | 6242 | for (o = link_info.output_bfd->sections; o != NULL; o = o->next) |
1a23a9e6 AM |
6243 | { |
6244 | /* Save the last size for possible use by bfd_relax_section. */ | |
6245 | o->rawsize = o->size; | |
6246 | o->size = 0; | |
6247 | } | |
252b5132 RH |
6248 | } |
6249 | ||
164e712d | 6250 | /* Worker for lang_gc_sections_1. */ |
252b5132 RH |
6251 | |
6252 | static void | |
1579bae1 AM |
6253 | gc_section_callback (lang_wild_statement_type *ptr, |
6254 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
6255 | asection *section, | |
6256 | lang_input_statement_type *file ATTRIBUTE_UNUSED, | |
6257 | void *data ATTRIBUTE_UNUSED) | |
252b5132 | 6258 | { |
164e712d AM |
6259 | /* If the wild pattern was marked KEEP, the member sections |
6260 | should be as well. */ | |
4dec4d4e RH |
6261 | if (ptr->keep_sections) |
6262 | section->flags |= SEC_KEEP; | |
252b5132 RH |
6263 | } |
6264 | ||
252b5132 RH |
6265 | /* Iterate over sections marking them against GC. */ |
6266 | ||
6267 | static void | |
1579bae1 | 6268 | lang_gc_sections_1 (lang_statement_union_type *s) |
252b5132 | 6269 | { |
1579bae1 | 6270 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
6271 | { |
6272 | switch (s->header.type) | |
6273 | { | |
6274 | case lang_wild_statement_enum: | |
164e712d | 6275 | walk_wild (&s->wild_statement, gc_section_callback, NULL); |
abc6ab0a | 6276 | break; |
252b5132 RH |
6277 | case lang_constructors_statement_enum: |
6278 | lang_gc_sections_1 (constructor_list.head); | |
6279 | break; | |
6280 | case lang_output_section_statement_enum: | |
6281 | lang_gc_sections_1 (s->output_section_statement.children.head); | |
6282 | break; | |
6283 | case lang_group_statement_enum: | |
6284 | lang_gc_sections_1 (s->group_statement.children.head); | |
6285 | break; | |
6286 | default: | |
6287 | break; | |
6288 | } | |
6289 | } | |
6290 | } | |
6291 | ||
6292 | static void | |
1579bae1 | 6293 | lang_gc_sections (void) |
252b5132 | 6294 | { |
252b5132 RH |
6295 | /* Keep all sections so marked in the link script. */ |
6296 | ||
6297 | lang_gc_sections_1 (statement_list.head); | |
6298 | ||
9ca57817 AM |
6299 | /* SEC_EXCLUDE is ignored when doing a relocatable link, except in |
6300 | the special case of debug info. (See bfd/stabs.c) | |
6301 | Twiddle the flag here, to simplify later linker code. */ | |
6302 | if (link_info.relocatable) | |
6303 | { | |
6304 | LANG_FOR_EACH_INPUT_STATEMENT (f) | |
6305 | { | |
6306 | asection *sec; | |
9e2278f5 | 6307 | #ifdef ENABLE_PLUGINS |
66be1055 | 6308 | if (f->flags.claimed) |
9e2278f5 AM |
6309 | continue; |
6310 | #endif | |
9ca57817 AM |
6311 | for (sec = f->the_bfd->sections; sec != NULL; sec = sec->next) |
6312 | if ((sec->flags & SEC_DEBUGGING) == 0) | |
6313 | sec->flags &= ~SEC_EXCLUDE; | |
6314 | } | |
6315 | } | |
6316 | ||
57316bff | 6317 | if (link_info.gc_sections) |
f13a99db | 6318 | bfd_gc_sections (link_info.output_bfd, &link_info); |
252b5132 RH |
6319 | } |
6320 | ||
b10a8ae0 L |
6321 | /* Worker for lang_find_relro_sections_1. */ |
6322 | ||
6323 | static void | |
6324 | find_relro_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED, | |
6325 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
6326 | asection *section, | |
6327 | lang_input_statement_type *file ATTRIBUTE_UNUSED, | |
6328 | void *data) | |
6329 | { | |
6330 | /* Discarded, excluded and ignored sections effectively have zero | |
6331 | size. */ | |
6332 | if (section->output_section != NULL | |
f13a99db | 6333 | && section->output_section->owner == link_info.output_bfd |
b10a8ae0 L |
6334 | && (section->output_section->flags & SEC_EXCLUDE) == 0 |
6335 | && !IGNORE_SECTION (section) | |
6336 | && section->size != 0) | |
6337 | { | |
6338 | bfd_boolean *has_relro_section = (bfd_boolean *) data; | |
6339 | *has_relro_section = TRUE; | |
6340 | } | |
6341 | } | |
6342 | ||
6343 | /* Iterate over sections for relro sections. */ | |
6344 | ||
6345 | static void | |
6346 | lang_find_relro_sections_1 (lang_statement_union_type *s, | |
6347 | bfd_boolean *has_relro_section) | |
6348 | { | |
6349 | if (*has_relro_section) | |
6350 | return; | |
6351 | ||
6352 | for (; s != NULL; s = s->header.next) | |
6353 | { | |
6354 | if (s == expld.dataseg.relro_end_stat) | |
6355 | break; | |
6356 | ||
6357 | switch (s->header.type) | |
6358 | { | |
6359 | case lang_wild_statement_enum: | |
6360 | walk_wild (&s->wild_statement, | |
6361 | find_relro_section_callback, | |
6362 | has_relro_section); | |
6363 | break; | |
6364 | case lang_constructors_statement_enum: | |
6365 | lang_find_relro_sections_1 (constructor_list.head, | |
6366 | has_relro_section); | |
6367 | break; | |
6368 | case lang_output_section_statement_enum: | |
6369 | lang_find_relro_sections_1 (s->output_section_statement.children.head, | |
6370 | has_relro_section); | |
6371 | break; | |
6372 | case lang_group_statement_enum: | |
6373 | lang_find_relro_sections_1 (s->group_statement.children.head, | |
6374 | has_relro_section); | |
6375 | break; | |
6376 | default: | |
6377 | break; | |
6378 | } | |
6379 | } | |
6380 | } | |
6381 | ||
6382 | static void | |
6383 | lang_find_relro_sections (void) | |
6384 | { | |
6385 | bfd_boolean has_relro_section = FALSE; | |
6386 | ||
6387 | /* Check all sections in the link script. */ | |
6388 | ||
6389 | lang_find_relro_sections_1 (expld.dataseg.relro_start_stat, | |
6390 | &has_relro_section); | |
6391 | ||
6392 | if (!has_relro_section) | |
6393 | link_info.relro = FALSE; | |
6394 | } | |
6395 | ||
fbbc3759 L |
6396 | /* Relax all sections until bfd_relax_section gives up. */ |
6397 | ||
eaeb0a9d AM |
6398 | void |
6399 | lang_relax_sections (bfd_boolean need_layout) | |
fbbc3759 | 6400 | { |
28d5f677 | 6401 | if (RELAXATION_ENABLED) |
fbbc3759 | 6402 | { |
eaeb0a9d AM |
6403 | /* We may need more than one relaxation pass. */ |
6404 | int i = link_info.relax_pass; | |
fbbc3759 | 6405 | |
eaeb0a9d AM |
6406 | /* The backend can use it to determine the current pass. */ |
6407 | link_info.relax_pass = 0; | |
fbbc3759 | 6408 | |
eaeb0a9d AM |
6409 | while (i--) |
6410 | { | |
6411 | /* Keep relaxing until bfd_relax_section gives up. */ | |
6412 | bfd_boolean relax_again; | |
fbbc3759 | 6413 | |
eaeb0a9d AM |
6414 | link_info.relax_trip = -1; |
6415 | do | |
6416 | { | |
6417 | link_info.relax_trip++; | |
6418 | ||
6419 | /* Note: pe-dll.c does something like this also. If you find | |
6420 | you need to change this code, you probably need to change | |
6421 | pe-dll.c also. DJ */ | |
6422 | ||
6423 | /* Do all the assignments with our current guesses as to | |
6424 | section sizes. */ | |
2f65ac72 | 6425 | lang_do_assignments (lang_assigning_phase_enum); |
eaeb0a9d AM |
6426 | |
6427 | /* We must do this after lang_do_assignments, because it uses | |
6428 | size. */ | |
6429 | lang_reset_memory_regions (); | |
6430 | ||
6431 | /* Perform another relax pass - this time we know where the | |
6432 | globals are, so can make a better guess. */ | |
6433 | relax_again = FALSE; | |
6434 | lang_size_sections (&relax_again, FALSE); | |
6435 | } | |
6436 | while (relax_again); | |
6437 | ||
6438 | link_info.relax_pass++; | |
6439 | } | |
6440 | need_layout = TRUE; | |
6441 | } | |
fbbc3759 | 6442 | |
eaeb0a9d AM |
6443 | if (need_layout) |
6444 | { | |
6445 | /* Final extra sizing to report errors. */ | |
2f65ac72 | 6446 | lang_do_assignments (lang_assigning_phase_enum); |
eaeb0a9d AM |
6447 | lang_reset_memory_regions (); |
6448 | lang_size_sections (NULL, TRUE); | |
fbbc3759 | 6449 | } |
fbbc3759 L |
6450 | } |
6451 | ||
8543fde5 DK |
6452 | #ifdef ENABLE_PLUGINS |
6453 | /* Find the insert point for the plugin's replacement files. We | |
6454 | place them after the first claimed real object file, or if the | |
6455 | first claimed object is an archive member, after the last real | |
6456 | object file immediately preceding the archive. In the event | |
6457 | no objects have been claimed at all, we return the first dummy | |
6458 | object file on the list as the insert point; that works, but | |
6459 | the callee must be careful when relinking the file_chain as it | |
6460 | is not actually on that chain, only the statement_list and the | |
6461 | input_file list; in that case, the replacement files must be | |
6462 | inserted at the head of the file_chain. */ | |
6463 | ||
6464 | static lang_input_statement_type * | |
6465 | find_replacements_insert_point (void) | |
6466 | { | |
6467 | lang_input_statement_type *claim1, *lastobject; | |
6468 | lastobject = &input_file_chain.head->input_statement; | |
6469 | for (claim1 = &file_chain.head->input_statement; | |
6470 | claim1 != NULL; | |
6471 | claim1 = &claim1->next->input_statement) | |
6472 | { | |
66be1055 AM |
6473 | if (claim1->flags.claimed) |
6474 | return claim1->flags.claim_archive ? lastobject : claim1; | |
8543fde5 DK |
6475 | /* Update lastobject if this is a real object file. */ |
6476 | if (claim1->the_bfd && (claim1->the_bfd->my_archive == NULL)) | |
6477 | lastobject = claim1; | |
6478 | } | |
6479 | /* No files were claimed by the plugin. Choose the last object | |
6480 | file found on the list (maybe the first, dummy entry) as the | |
6481 | insert point. */ | |
6482 | return lastobject; | |
6483 | } | |
9e2278f5 AM |
6484 | |
6485 | /* Insert SRCLIST into DESTLIST after given element by chaining | |
6486 | on FIELD as the next-pointer. (Counterintuitively does not need | |
6487 | a pointer to the actual after-node itself, just its chain field.) */ | |
6488 | ||
6489 | static void | |
6490 | lang_list_insert_after (lang_statement_list_type *destlist, | |
6491 | lang_statement_list_type *srclist, | |
6492 | lang_statement_union_type **field) | |
6493 | { | |
6494 | *(srclist->tail) = *field; | |
6495 | *field = srclist->head; | |
6496 | if (destlist->tail == field) | |
6497 | destlist->tail = srclist->tail; | |
6498 | } | |
6499 | ||
6500 | /* Detach new nodes added to DESTLIST since the time ORIGLIST | |
6501 | was taken as a copy of it and leave them in ORIGLIST. */ | |
6502 | ||
6503 | static void | |
6504 | lang_list_remove_tail (lang_statement_list_type *destlist, | |
6505 | lang_statement_list_type *origlist) | |
6506 | { | |
6507 | union lang_statement_union **savetail; | |
6508 | /* Check that ORIGLIST really is an earlier state of DESTLIST. */ | |
6509 | ASSERT (origlist->head == destlist->head); | |
6510 | savetail = origlist->tail; | |
6511 | origlist->head = *(savetail); | |
6512 | origlist->tail = destlist->tail; | |
6513 | destlist->tail = savetail; | |
6514 | *savetail = NULL; | |
6515 | } | |
8543fde5 DK |
6516 | #endif /* ENABLE_PLUGINS */ |
6517 | ||
252b5132 | 6518 | void |
1579bae1 | 6519 | lang_process (void) |
252b5132 | 6520 | { |
55255dae | 6521 | /* Finalize dynamic list. */ |
40b36307 L |
6522 | if (link_info.dynamic_list) |
6523 | lang_finalize_version_expr_head (&link_info.dynamic_list->head); | |
55255dae | 6524 | |
252b5132 RH |
6525 | current_target = default_target; |
6526 | ||
08da4cac KH |
6527 | /* Open the output file. */ |
6528 | lang_for_each_statement (ldlang_open_output); | |
e5caa5e0 | 6529 | init_opb (); |
252b5132 RH |
6530 | |
6531 | ldemul_create_output_section_statements (); | |
6532 | ||
08da4cac | 6533 | /* Add to the hash table all undefineds on the command line. */ |
252b5132 RH |
6534 | lang_place_undefineds (); |
6535 | ||
082b7297 L |
6536 | if (!bfd_section_already_linked_table_init ()) |
6537 | einfo (_("%P%F: Failed to create hash table\n")); | |
9503fd87 | 6538 | |
08da4cac | 6539 | /* Create a bfd for each input file. */ |
252b5132 | 6540 | current_target = default_target; |
486329aa | 6541 | open_input_bfds (statement_list.head, OPEN_BFD_NORMAL); |
252b5132 | 6542 | |
5d3236ee | 6543 | #ifdef ENABLE_PLUGINS |
8543fde5 | 6544 | if (plugin_active_plugins_p ()) |
f84854b6 | 6545 | { |
8543fde5 DK |
6546 | lang_statement_list_type added; |
6547 | lang_statement_list_type files, inputfiles; | |
9e2278f5 | 6548 | |
f84854b6 L |
6549 | /* Now all files are read, let the plugin(s) decide if there |
6550 | are any more to be added to the link before we call the | |
8543fde5 DK |
6551 | emulation's after_open hook. We create a private list of |
6552 | input statements for this purpose, which we will eventually | |
6553 | insert into the global statment list after the first claimed | |
6554 | file. */ | |
6555 | added = *stat_ptr; | |
6556 | /* We need to manipulate all three chains in synchrony. */ | |
6557 | files = file_chain; | |
6558 | inputfiles = input_file_chain; | |
f84854b6 L |
6559 | if (plugin_call_all_symbols_read ()) |
6560 | einfo (_("%P%F: %s: plugin reported error after all symbols read\n"), | |
6561 | plugin_error_plugin ()); | |
8543fde5 | 6562 | /* Open any newly added files, updating the file chains. */ |
0c511000 | 6563 | link_info.loading_lto_outputs = TRUE; |
cdaa438c | 6564 | open_input_bfds (*added.tail, OPEN_BFD_NORMAL); |
8543fde5 DK |
6565 | /* Restore the global list pointer now they have all been added. */ |
6566 | lang_list_remove_tail (stat_ptr, &added); | |
6567 | /* And detach the fresh ends of the file lists. */ | |
6568 | lang_list_remove_tail (&file_chain, &files); | |
6569 | lang_list_remove_tail (&input_file_chain, &inputfiles); | |
6570 | /* Were any new files added? */ | |
6571 | if (added.head != NULL) | |
6572 | { | |
6573 | /* If so, we will insert them into the statement list immediately | |
6574 | after the first input file that was claimed by the plugin. */ | |
9e2278f5 | 6575 | plugin_insert = find_replacements_insert_point (); |
8543fde5 DK |
6576 | /* If a plugin adds input files without having claimed any, we |
6577 | don't really have a good idea where to place them. Just putting | |
6578 | them at the start or end of the list is liable to leave them | |
6579 | outside the crtbegin...crtend range. */ | |
9e2278f5 AM |
6580 | ASSERT (plugin_insert != NULL); |
6581 | /* Splice the new statement list into the old one. */ | |
6582 | lang_list_insert_after (stat_ptr, &added, | |
6583 | &plugin_insert->header.next); | |
8543fde5 DK |
6584 | /* Likewise for the file chains. */ |
6585 | lang_list_insert_after (&input_file_chain, &inputfiles, | |
9e2278f5 | 6586 | &plugin_insert->next_real_file); |
8543fde5 DK |
6587 | /* We must be careful when relinking file_chain; we may need to |
6588 | insert the new files at the head of the list if the insert | |
6589 | point chosen is the dummy first input file. */ | |
9e2278f5 AM |
6590 | if (plugin_insert->filename) |
6591 | lang_list_insert_after (&file_chain, &files, &plugin_insert->next); | |
8543fde5 DK |
6592 | else |
6593 | lang_list_insert_after (&file_chain, &files, &file_chain.head); | |
9e2278f5 AM |
6594 | |
6595 | /* Rescan archives in case new undefined symbols have appeared. */ | |
6596 | open_input_bfds (statement_list.head, OPEN_BFD_RESCAN); | |
8543fde5 | 6597 | } |
f84854b6 | 6598 | } |
5d3236ee DK |
6599 | #endif /* ENABLE_PLUGINS */ |
6600 | ||
e3e942e9 AM |
6601 | link_info.gc_sym_list = &entry_symbol; |
6602 | if (entry_symbol.name == NULL) | |
6603 | link_info.gc_sym_list = ldlang_undef_chain_list_head; | |
6604 | ||
252b5132 RH |
6605 | ldemul_after_open (); |
6606 | ||
082b7297 | 6607 | bfd_section_already_linked_table_free (); |
9503fd87 | 6608 | |
252b5132 RH |
6609 | /* Make sure that we're not mixing architectures. We call this |
6610 | after all the input files have been opened, but before we do any | |
6611 | other processing, so that any operations merge_private_bfd_data | |
6612 | does on the output file will be known during the rest of the | |
6613 | link. */ | |
6614 | lang_check (); | |
6615 | ||
6616 | /* Handle .exports instead of a version script if we're told to do so. */ | |
6617 | if (command_line.version_exports_section) | |
6618 | lang_do_version_exports_section (); | |
6619 | ||
6620 | /* Build all sets based on the information gathered from the input | |
6621 | files. */ | |
6622 | ldctor_build_sets (); | |
6623 | ||
2aa9aad9 NC |
6624 | /* PR 13683: We must rerun the assignments prior to running garbage |
6625 | collection in order to make sure that all symbol aliases are resolved. */ | |
6626 | lang_do_assignments (lang_mark_phase_enum); | |
6627 | expld.phase = lang_first_phase_enum; | |
6628 | ||
252b5132 | 6629 | /* Remove unreferenced sections if asked to. */ |
164e712d | 6630 | lang_gc_sections (); |
252b5132 | 6631 | |
08da4cac | 6632 | /* Size up the common data. */ |
252b5132 RH |
6633 | lang_common (); |
6634 | ||
bcaa7b3e L |
6635 | /* Update wild statements. */ |
6636 | update_wild_statements (statement_list.head); | |
6637 | ||
252b5132 | 6638 | /* Run through the contours of the script and attach input sections |
08da4cac | 6639 | to the correct output sections. */ |
e759c116 | 6640 | lang_statement_iteration++; |
1579bae1 | 6641 | map_input_to_output_sections (statement_list.head, NULL, NULL); |
252b5132 | 6642 | |
53d25da6 AM |
6643 | process_insert_statements (); |
6644 | ||
08da4cac | 6645 | /* Find any sections not attached explicitly and handle them. */ |
252b5132 RH |
6646 | lang_place_orphans (); |
6647 | ||
1049f94e | 6648 | if (! link_info.relocatable) |
862120bd | 6649 | { |
57ceae94 AM |
6650 | asection *found; |
6651 | ||
6652 | /* Merge SEC_MERGE sections. This has to be done after GC of | |
6653 | sections, so that GCed sections are not merged, but before | |
6654 | assigning dynamic symbols, since removing whole input sections | |
6655 | is hard then. */ | |
f13a99db | 6656 | bfd_merge_sections (link_info.output_bfd, &link_info); |
57ceae94 | 6657 | |
862120bd | 6658 | /* Look for a text section and set the readonly attribute in it. */ |
f13a99db | 6659 | found = bfd_get_section_by_name (link_info.output_bfd, ".text"); |
862120bd | 6660 | |
1579bae1 | 6661 | if (found != NULL) |
862120bd AM |
6662 | { |
6663 | if (config.text_read_only) | |
6664 | found->flags |= SEC_READONLY; | |
6665 | else | |
6666 | found->flags &= ~SEC_READONLY; | |
6667 | } | |
6668 | } | |
6669 | ||
6670 | /* Do anything special before sizing sections. This is where ELF | |
6671 | and other back-ends size dynamic sections. */ | |
252b5132 RH |
6672 | ldemul_before_allocation (); |
6673 | ||
6674 | /* We must record the program headers before we try to fix the | |
6675 | section positions, since they will affect SIZEOF_HEADERS. */ | |
6676 | lang_record_phdrs (); | |
6677 | ||
b10a8ae0 L |
6678 | /* Check relro sections. */ |
6679 | if (link_info.relro && ! link_info.relocatable) | |
6680 | lang_find_relro_sections (); | |
6681 | ||
b3327aad | 6682 | /* Size up the sections. */ |
28d5f677 | 6683 | lang_size_sections (NULL, ! RELAXATION_ENABLED); |
b3327aad | 6684 | |
252b5132 | 6685 | /* See if anything special should be done now we know how big |
eaeb0a9d | 6686 | everything is. This is where relaxation is done. */ |
252b5132 RH |
6687 | ldemul_after_allocation (); |
6688 | ||
6689 | /* Fix any .startof. or .sizeof. symbols. */ | |
6690 | lang_set_startof (); | |
6691 | ||
08da4cac KH |
6692 | /* Do all the assignments, now that we know the final resting places |
6693 | of all the symbols. */ | |
2f65ac72 | 6694 | lang_do_assignments (lang_final_phase_enum); |
252b5132 | 6695 | |
8ded5a0f AM |
6696 | ldemul_finish (); |
6697 | ||
252b5132 | 6698 | /* Make sure that the section addresses make sense. */ |
662ef24b | 6699 | if (command_line.check_section_addresses) |
252b5132 | 6700 | lang_check_section_addresses (); |
5f992e62 | 6701 | |
750877ba | 6702 | lang_end (); |
252b5132 RH |
6703 | } |
6704 | ||
6705 | /* EXPORTED TO YACC */ | |
6706 | ||
6707 | void | |
1579bae1 AM |
6708 | lang_add_wild (struct wildcard_spec *filespec, |
6709 | struct wildcard_list *section_list, | |
6710 | bfd_boolean keep_sections) | |
252b5132 | 6711 | { |
b6bf44ba | 6712 | struct wildcard_list *curr, *next; |
d3ce72d0 | 6713 | lang_wild_statement_type *new_stmt; |
b6bf44ba AM |
6714 | |
6715 | /* Reverse the list as the parser puts it back to front. */ | |
6716 | for (curr = section_list, section_list = NULL; | |
6717 | curr != NULL; | |
6718 | section_list = curr, curr = next) | |
6719 | { | |
6720 | if (curr->spec.name != NULL && strcmp (curr->spec.name, "COMMON") == 0) | |
b34976b6 | 6721 | placed_commons = TRUE; |
252b5132 | 6722 | |
b6bf44ba AM |
6723 | next = curr->next; |
6724 | curr->next = section_list; | |
6725 | } | |
6726 | ||
6727 | if (filespec != NULL && filespec->name != NULL) | |
252b5132 | 6728 | { |
b6bf44ba AM |
6729 | if (strcmp (filespec->name, "*") == 0) |
6730 | filespec->name = NULL; | |
6731 | else if (! wildcardp (filespec->name)) | |
b34976b6 | 6732 | lang_has_input_file = TRUE; |
252b5132 | 6733 | } |
b6bf44ba | 6734 | |
d3ce72d0 NC |
6735 | new_stmt = new_stat (lang_wild_statement, stat_ptr); |
6736 | new_stmt->filename = NULL; | |
6737 | new_stmt->filenames_sorted = FALSE; | |
ae17ab41 | 6738 | new_stmt->section_flag_list = NULL; |
b6bf44ba | 6739 | if (filespec != NULL) |
252b5132 | 6740 | { |
d3ce72d0 NC |
6741 | new_stmt->filename = filespec->name; |
6742 | new_stmt->filenames_sorted = filespec->sorted == by_name; | |
ae17ab41 | 6743 | new_stmt->section_flag_list = filespec->section_flag_list; |
252b5132 | 6744 | } |
d3ce72d0 NC |
6745 | new_stmt->section_list = section_list; |
6746 | new_stmt->keep_sections = keep_sections; | |
6747 | lang_list_init (&new_stmt->children); | |
6748 | analyze_walk_wild_section_handler (new_stmt); | |
252b5132 RH |
6749 | } |
6750 | ||
6751 | void | |
ba916c8a MM |
6752 | lang_section_start (const char *name, etree_type *address, |
6753 | const segment_type *segment) | |
252b5132 | 6754 | { |
d1778b88 | 6755 | lang_address_statement_type *ad; |
252b5132 | 6756 | |
d1778b88 | 6757 | ad = new_stat (lang_address_statement, stat_ptr); |
252b5132 RH |
6758 | ad->section_name = name; |
6759 | ad->address = address; | |
ba916c8a | 6760 | ad->segment = segment; |
252b5132 RH |
6761 | } |
6762 | ||
6763 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called | |
6764 | because of a -e argument on the command line, or zero if this is | |
6765 | called by ENTRY in a linker script. Command line arguments take | |
6766 | precedence. */ | |
6767 | ||
6768 | void | |
1579bae1 | 6769 | lang_add_entry (const char *name, bfd_boolean cmdline) |
252b5132 | 6770 | { |
e3e942e9 | 6771 | if (entry_symbol.name == NULL |
252b5132 RH |
6772 | || cmdline |
6773 | || ! entry_from_cmdline) | |
6774 | { | |
e3e942e9 | 6775 | entry_symbol.name = name; |
252b5132 RH |
6776 | entry_from_cmdline = cmdline; |
6777 | } | |
6778 | } | |
6779 | ||
a359509e ZW |
6780 | /* Set the default start symbol to NAME. .em files should use this, |
6781 | not lang_add_entry, to override the use of "start" if neither the | |
6782 | linker script nor the command line specifies an entry point. NAME | |
6783 | must be permanently allocated. */ | |
6784 | void | |
6785 | lang_default_entry (const char *name) | |
6786 | { | |
6787 | entry_symbol_default = name; | |
6788 | } | |
6789 | ||
252b5132 | 6790 | void |
1579bae1 | 6791 | lang_add_target (const char *name) |
252b5132 | 6792 | { |
d3ce72d0 | 6793 | lang_target_statement_type *new_stmt; |
252b5132 | 6794 | |
d3ce72d0 NC |
6795 | new_stmt = new_stat (lang_target_statement, stat_ptr); |
6796 | new_stmt->target = name; | |
252b5132 RH |
6797 | } |
6798 | ||
6799 | void | |
1579bae1 | 6800 | lang_add_map (const char *name) |
252b5132 RH |
6801 | { |
6802 | while (*name) | |
6803 | { | |
6804 | switch (*name) | |
6805 | { | |
08da4cac | 6806 | case 'F': |
b34976b6 | 6807 | map_option_f = TRUE; |
252b5132 RH |
6808 | break; |
6809 | } | |
6810 | name++; | |
6811 | } | |
6812 | } | |
6813 | ||
6814 | void | |
1579bae1 | 6815 | lang_add_fill (fill_type *fill) |
252b5132 | 6816 | { |
d3ce72d0 | 6817 | lang_fill_statement_type *new_stmt; |
252b5132 | 6818 | |
d3ce72d0 NC |
6819 | new_stmt = new_stat (lang_fill_statement, stat_ptr); |
6820 | new_stmt->fill = fill; | |
252b5132 RH |
6821 | } |
6822 | ||
6823 | void | |
1579bae1 | 6824 | lang_add_data (int type, union etree_union *exp) |
252b5132 | 6825 | { |
d3ce72d0 | 6826 | lang_data_statement_type *new_stmt; |
252b5132 | 6827 | |
d3ce72d0 NC |
6828 | new_stmt = new_stat (lang_data_statement, stat_ptr); |
6829 | new_stmt->exp = exp; | |
6830 | new_stmt->type = type; | |
252b5132 RH |
6831 | } |
6832 | ||
6833 | /* Create a new reloc statement. RELOC is the BFD relocation type to | |
6834 | generate. HOWTO is the corresponding howto structure (we could | |
6835 | look this up, but the caller has already done so). SECTION is the | |
6836 | section to generate a reloc against, or NAME is the name of the | |
6837 | symbol to generate a reloc against. Exactly one of SECTION and | |
6838 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
6839 | ||
6840 | void | |
1579bae1 AM |
6841 | lang_add_reloc (bfd_reloc_code_real_type reloc, |
6842 | reloc_howto_type *howto, | |
6843 | asection *section, | |
6844 | const char *name, | |
6845 | union etree_union *addend) | |
252b5132 RH |
6846 | { |
6847 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
5f992e62 | 6848 | |
252b5132 RH |
6849 | p->reloc = reloc; |
6850 | p->howto = howto; | |
6851 | p->section = section; | |
6852 | p->name = name; | |
6853 | p->addend_exp = addend; | |
6854 | ||
6855 | p->addend_value = 0; | |
6856 | p->output_section = NULL; | |
7fabd029 | 6857 | p->output_offset = 0; |
252b5132 RH |
6858 | } |
6859 | ||
6860 | lang_assignment_statement_type * | |
1579bae1 | 6861 | lang_add_assignment (etree_type *exp) |
252b5132 | 6862 | { |
d3ce72d0 | 6863 | lang_assignment_statement_type *new_stmt; |
252b5132 | 6864 | |
d3ce72d0 NC |
6865 | new_stmt = new_stat (lang_assignment_statement, stat_ptr); |
6866 | new_stmt->exp = exp; | |
6867 | return new_stmt; | |
252b5132 RH |
6868 | } |
6869 | ||
6870 | void | |
1579bae1 | 6871 | lang_add_attribute (enum statement_enum attribute) |
252b5132 | 6872 | { |
bd4d42c1 | 6873 | new_statement (attribute, sizeof (lang_statement_header_type), stat_ptr); |
252b5132 RH |
6874 | } |
6875 | ||
6876 | void | |
1579bae1 | 6877 | lang_startup (const char *name) |
252b5132 | 6878 | { |
1e915804 | 6879 | if (first_file->filename != NULL) |
252b5132 | 6880 | { |
4520f868 | 6881 | einfo (_("%P%F: multiple STARTUP files\n")); |
252b5132 RH |
6882 | } |
6883 | first_file->filename = name; | |
6884 | first_file->local_sym_name = name; | |
66be1055 | 6885 | first_file->flags.real = TRUE; |
252b5132 RH |
6886 | } |
6887 | ||
6888 | void | |
1579bae1 | 6889 | lang_float (bfd_boolean maybe) |
252b5132 RH |
6890 | { |
6891 | lang_float_flag = maybe; | |
6892 | } | |
6893 | ||
ee3cc2e2 RS |
6894 | |
6895 | /* Work out the load- and run-time regions from a script statement, and | |
6896 | store them in *LMA_REGION and *REGION respectively. | |
6897 | ||
a747ee4d NC |
6898 | MEMSPEC is the name of the run-time region, or the value of |
6899 | DEFAULT_MEMORY_REGION if the statement didn't specify one. | |
6900 | LMA_MEMSPEC is the name of the load-time region, or null if the | |
6901 | statement didn't specify one.HAVE_LMA_P is TRUE if the statement | |
6902 | had an explicit load address. | |
ee3cc2e2 RS |
6903 | |
6904 | It is an error to specify both a load region and a load address. */ | |
6905 | ||
6906 | static void | |
6bdafbeb NC |
6907 | lang_get_regions (lang_memory_region_type **region, |
6908 | lang_memory_region_type **lma_region, | |
1579bae1 AM |
6909 | const char *memspec, |
6910 | const char *lma_memspec, | |
6bdafbeb NC |
6911 | bfd_boolean have_lma, |
6912 | bfd_boolean have_vma) | |
ee3cc2e2 | 6913 | { |
a747ee4d | 6914 | *lma_region = lang_memory_region_lookup (lma_memspec, FALSE); |
ee3cc2e2 | 6915 | |
6feb9908 AM |
6916 | /* If no runtime region or VMA has been specified, but the load region |
6917 | has been specified, then use the load region for the runtime region | |
6918 | as well. */ | |
6bdafbeb NC |
6919 | if (lma_memspec != NULL |
6920 | && ! have_vma | |
6921 | && strcmp (memspec, DEFAULT_MEMORY_REGION) == 0) | |
ee3cc2e2 RS |
6922 | *region = *lma_region; |
6923 | else | |
a747ee4d | 6924 | *region = lang_memory_region_lookup (memspec, FALSE); |
ee3cc2e2 | 6925 | |
6bdafbeb | 6926 | if (have_lma && lma_memspec != 0) |
dab69f68 AM |
6927 | einfo (_("%X%P:%S: section has both a load address and a load region\n"), |
6928 | NULL); | |
ee3cc2e2 RS |
6929 | } |
6930 | ||
252b5132 | 6931 | void |
6bdafbeb NC |
6932 | lang_leave_output_section_statement (fill_type *fill, const char *memspec, |
6933 | lang_output_section_phdr_list *phdrs, | |
6934 | const char *lma_memspec) | |
252b5132 | 6935 | { |
ee3cc2e2 RS |
6936 | lang_get_regions (¤t_section->region, |
6937 | ¤t_section->lma_region, | |
6938 | memspec, lma_memspec, | |
6bdafbeb NC |
6939 | current_section->load_base != NULL, |
6940 | current_section->addr_tree != NULL); | |
113e6845 | 6941 | |
83e7bd17 | 6942 | /* If this section has no load region or base, but uses the same |
113e6845 NS |
6943 | region as the previous section, then propagate the previous |
6944 | section's load region. */ | |
6945 | ||
83e7bd17 AM |
6946 | if (current_section->lma_region == NULL |
6947 | && current_section->load_base == NULL | |
6948 | && current_section->addr_tree == NULL | |
113e6845 NS |
6949 | && current_section->region == current_section->prev->region) |
6950 | current_section->lma_region = current_section->prev->lma_region; | |
1e0061d2 | 6951 | |
252b5132 | 6952 | current_section->fill = fill; |
252b5132 | 6953 | current_section->phdrs = phdrs; |
bde18da4 | 6954 | pop_stat_ptr (); |
252b5132 RH |
6955 | } |
6956 | ||
08da4cac KH |
6957 | /* Create an absolute symbol with the given name with the value of the |
6958 | address of first byte of the section named. | |
6959 | ||
6960 | If the symbol already exists, then do nothing. */ | |
252b5132 | 6961 | |
252b5132 | 6962 | void |
1579bae1 | 6963 | lang_abs_symbol_at_beginning_of (const char *secname, const char *name) |
252b5132 RH |
6964 | { |
6965 | struct bfd_link_hash_entry *h; | |
6966 | ||
b34976b6 | 6967 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, TRUE, TRUE); |
1579bae1 | 6968 | if (h == NULL) |
252b5132 RH |
6969 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); |
6970 | ||
6971 | if (h->type == bfd_link_hash_new | |
6972 | || h->type == bfd_link_hash_undefined) | |
6973 | { | |
6974 | asection *sec; | |
6975 | ||
6976 | h->type = bfd_link_hash_defined; | |
6977 | ||
f13a99db | 6978 | sec = bfd_get_section_by_name (link_info.output_bfd, secname); |
1579bae1 | 6979 | if (sec == NULL) |
252b5132 RH |
6980 | h->u.def.value = 0; |
6981 | else | |
f13a99db | 6982 | h->u.def.value = bfd_get_section_vma (link_info.output_bfd, sec); |
252b5132 RH |
6983 | |
6984 | h->u.def.section = bfd_abs_section_ptr; | |
6985 | } | |
6986 | } | |
6987 | ||
08da4cac KH |
6988 | /* Create an absolute symbol with the given name with the value of the |
6989 | address of the first byte after the end of the section named. | |
6990 | ||
6991 | If the symbol already exists, then do nothing. */ | |
252b5132 | 6992 | |
252b5132 | 6993 | void |
1579bae1 | 6994 | lang_abs_symbol_at_end_of (const char *secname, const char *name) |
252b5132 RH |
6995 | { |
6996 | struct bfd_link_hash_entry *h; | |
6997 | ||
b34976b6 | 6998 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, TRUE, TRUE); |
1579bae1 | 6999 | if (h == NULL) |
252b5132 RH |
7000 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); |
7001 | ||
7002 | if (h->type == bfd_link_hash_new | |
7003 | || h->type == bfd_link_hash_undefined) | |
7004 | { | |
7005 | asection *sec; | |
7006 | ||
7007 | h->type = bfd_link_hash_defined; | |
7008 | ||
f13a99db | 7009 | sec = bfd_get_section_by_name (link_info.output_bfd, secname); |
1579bae1 | 7010 | if (sec == NULL) |
252b5132 RH |
7011 | h->u.def.value = 0; |
7012 | else | |
f13a99db | 7013 | h->u.def.value = (bfd_get_section_vma (link_info.output_bfd, sec) |
eea6121a | 7014 | + TO_ADDR (sec->size)); |
252b5132 RH |
7015 | |
7016 | h->u.def.section = bfd_abs_section_ptr; | |
7017 | } | |
7018 | } | |
7019 | ||
7020 | void | |
1579bae1 AM |
7021 | lang_statement_append (lang_statement_list_type *list, |
7022 | lang_statement_union_type *element, | |
7023 | lang_statement_union_type **field) | |
252b5132 RH |
7024 | { |
7025 | *(list->tail) = element; | |
7026 | list->tail = field; | |
7027 | } | |
7028 | ||
7029 | /* Set the output format type. -oformat overrides scripts. */ | |
7030 | ||
7031 | void | |
1579bae1 AM |
7032 | lang_add_output_format (const char *format, |
7033 | const char *big, | |
7034 | const char *little, | |
7035 | int from_script) | |
252b5132 RH |
7036 | { |
7037 | if (output_target == NULL || !from_script) | |
7038 | { | |
7039 | if (command_line.endian == ENDIAN_BIG | |
7040 | && big != NULL) | |
7041 | format = big; | |
7042 | else if (command_line.endian == ENDIAN_LITTLE | |
7043 | && little != NULL) | |
7044 | format = little; | |
7045 | ||
7046 | output_target = format; | |
7047 | } | |
7048 | } | |
7049 | ||
53d25da6 AM |
7050 | void |
7051 | lang_add_insert (const char *where, int is_before) | |
7052 | { | |
d3ce72d0 | 7053 | lang_insert_statement_type *new_stmt; |
53d25da6 | 7054 | |
d3ce72d0 NC |
7055 | new_stmt = new_stat (lang_insert_statement, stat_ptr); |
7056 | new_stmt->where = where; | |
7057 | new_stmt->is_before = is_before; | |
53d25da6 AM |
7058 | saved_script_handle = previous_script_handle; |
7059 | } | |
7060 | ||
252b5132 RH |
7061 | /* Enter a group. This creates a new lang_group_statement, and sets |
7062 | stat_ptr to build new statements within the group. */ | |
7063 | ||
7064 | void | |
1579bae1 | 7065 | lang_enter_group (void) |
252b5132 RH |
7066 | { |
7067 | lang_group_statement_type *g; | |
7068 | ||
7069 | g = new_stat (lang_group_statement, stat_ptr); | |
7070 | lang_list_init (&g->children); | |
bde18da4 | 7071 | push_stat_ptr (&g->children); |
252b5132 RH |
7072 | } |
7073 | ||
7074 | /* Leave a group. This just resets stat_ptr to start writing to the | |
7075 | regular list of statements again. Note that this will not work if | |
7076 | groups can occur inside anything else which can adjust stat_ptr, | |
7077 | but currently they can't. */ | |
7078 | ||
7079 | void | |
1579bae1 | 7080 | lang_leave_group (void) |
252b5132 | 7081 | { |
bde18da4 | 7082 | pop_stat_ptr (); |
252b5132 RH |
7083 | } |
7084 | ||
7085 | /* Add a new program header. This is called for each entry in a PHDRS | |
7086 | command in a linker script. */ | |
7087 | ||
7088 | void | |
1579bae1 AM |
7089 | lang_new_phdr (const char *name, |
7090 | etree_type *type, | |
7091 | bfd_boolean filehdr, | |
7092 | bfd_boolean phdrs, | |
7093 | etree_type *at, | |
7094 | etree_type *flags) | |
252b5132 RH |
7095 | { |
7096 | struct lang_phdr *n, **pp; | |
5c1a3f0f | 7097 | bfd_boolean hdrs; |
252b5132 | 7098 | |
1e9cc1c2 | 7099 | n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr)); |
252b5132 RH |
7100 | n->next = NULL; |
7101 | n->name = name; | |
e9ee469a | 7102 | n->type = exp_get_value_int (type, 0, "program header type"); |
252b5132 RH |
7103 | n->filehdr = filehdr; |
7104 | n->phdrs = phdrs; | |
7105 | n->at = at; | |
7106 | n->flags = flags; | |
1e0061d2 | 7107 | |
5c1a3f0f | 7108 | hdrs = n->type == 1 && (phdrs || filehdr); |
252b5132 RH |
7109 | |
7110 | for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next) | |
4100cea3 AM |
7111 | if (hdrs |
7112 | && (*pp)->type == 1 | |
7113 | && !((*pp)->filehdr || (*pp)->phdrs)) | |
5c1a3f0f | 7114 | { |
dab69f68 AM |
7115 | einfo (_("%X%P:%S: PHDRS and FILEHDR are not supported" |
7116 | " when prior PT_LOAD headers lack them\n"), NULL); | |
5c1a3f0f NS |
7117 | hdrs = FALSE; |
7118 | } | |
7119 | ||
252b5132 RH |
7120 | *pp = n; |
7121 | } | |
7122 | ||
7123 | /* Record the program header information in the output BFD. FIXME: We | |
7124 | should not be calling an ELF specific function here. */ | |
7125 | ||
7126 | static void | |
1579bae1 | 7127 | lang_record_phdrs (void) |
252b5132 RH |
7128 | { |
7129 | unsigned int alc; | |
7130 | asection **secs; | |
6bdafbeb | 7131 | lang_output_section_phdr_list *last; |
252b5132 | 7132 | struct lang_phdr *l; |
afd7a018 | 7133 | lang_output_section_statement_type *os; |
252b5132 RH |
7134 | |
7135 | alc = 10; | |
1e9cc1c2 | 7136 | secs = (asection **) xmalloc (alc * sizeof (asection *)); |
252b5132 | 7137 | last = NULL; |
591a748a | 7138 | |
252b5132 RH |
7139 | for (l = lang_phdr_list; l != NULL; l = l->next) |
7140 | { | |
7141 | unsigned int c; | |
7142 | flagword flags; | |
7143 | bfd_vma at; | |
7144 | ||
7145 | c = 0; | |
afd7a018 AM |
7146 | for (os = &lang_output_section_statement.head->output_section_statement; |
7147 | os != NULL; | |
7148 | os = os->next) | |
252b5132 | 7149 | { |
6bdafbeb | 7150 | lang_output_section_phdr_list *pl; |
252b5132 | 7151 | |
66c103b7 | 7152 | if (os->constraint < 0) |
0841712e | 7153 | continue; |
252b5132 RH |
7154 | |
7155 | pl = os->phdrs; | |
7156 | if (pl != NULL) | |
7157 | last = pl; | |
7158 | else | |
7159 | { | |
7160 | if (os->sectype == noload_section | |
7161 | || os->bfd_section == NULL | |
7162 | || (os->bfd_section->flags & SEC_ALLOC) == 0) | |
7163 | continue; | |
591a748a | 7164 | |
7512c397 AM |
7165 | /* Don't add orphans to PT_INTERP header. */ |
7166 | if (l->type == 3) | |
7167 | continue; | |
7168 | ||
e9442572 | 7169 | if (last == NULL) |
591a748a NC |
7170 | { |
7171 | lang_output_section_statement_type * tmp_os; | |
7172 | ||
7173 | /* If we have not run across a section with a program | |
7174 | header assigned to it yet, then scan forwards to find | |
7175 | one. This prevents inconsistencies in the linker's | |
7176 | behaviour when a script has specified just a single | |
7177 | header and there are sections in that script which are | |
7178 | not assigned to it, and which occur before the first | |
7179 | use of that header. See here for more details: | |
7180 | http://sourceware.org/ml/binutils/2007-02/msg00291.html */ | |
7181 | for (tmp_os = os; tmp_os; tmp_os = tmp_os->next) | |
7182 | if (tmp_os->phdrs) | |
e9442572 AM |
7183 | { |
7184 | last = tmp_os->phdrs; | |
7185 | break; | |
7186 | } | |
7187 | if (last == NULL) | |
7188 | einfo (_("%F%P: no sections assigned to phdrs\n")); | |
591a748a | 7189 | } |
e9442572 | 7190 | pl = last; |
252b5132 RH |
7191 | } |
7192 | ||
7193 | if (os->bfd_section == NULL) | |
7194 | continue; | |
7195 | ||
7196 | for (; pl != NULL; pl = pl->next) | |
7197 | { | |
7198 | if (strcmp (pl->name, l->name) == 0) | |
7199 | { | |
7200 | if (c >= alc) | |
7201 | { | |
7202 | alc *= 2; | |
1e9cc1c2 NC |
7203 | secs = (asection **) xrealloc (secs, |
7204 | alc * sizeof (asection *)); | |
252b5132 RH |
7205 | } |
7206 | secs[c] = os->bfd_section; | |
7207 | ++c; | |
b34976b6 | 7208 | pl->used = TRUE; |
252b5132 RH |
7209 | } |
7210 | } | |
7211 | } | |
7212 | ||
7213 | if (l->flags == NULL) | |
7214 | flags = 0; | |
7215 | else | |
e9ee469a | 7216 | flags = exp_get_vma (l->flags, 0, "phdr flags"); |
252b5132 RH |
7217 | |
7218 | if (l->at == NULL) | |
7219 | at = 0; | |
7220 | else | |
e9ee469a | 7221 | at = exp_get_vma (l->at, 0, "phdr load address"); |
252b5132 | 7222 | |
f13a99db | 7223 | if (! bfd_record_phdr (link_info.output_bfd, l->type, |
d1778b88 | 7224 | l->flags != NULL, flags, l->at != NULL, |
252b5132 RH |
7225 | at, l->filehdr, l->phdrs, c, secs)) |
7226 | einfo (_("%F%P: bfd_record_phdr failed: %E\n")); | |
7227 | } | |
7228 | ||
7229 | free (secs); | |
7230 | ||
7231 | /* Make sure all the phdr assignments succeeded. */ | |
afd7a018 AM |
7232 | for (os = &lang_output_section_statement.head->output_section_statement; |
7233 | os != NULL; | |
7234 | os = os->next) | |
252b5132 | 7235 | { |
6bdafbeb | 7236 | lang_output_section_phdr_list *pl; |
252b5132 | 7237 | |
66c103b7 | 7238 | if (os->constraint < 0 |
afd7a018 | 7239 | || os->bfd_section == NULL) |
252b5132 RH |
7240 | continue; |
7241 | ||
afd7a018 | 7242 | for (pl = os->phdrs; |
252b5132 RH |
7243 | pl != NULL; |
7244 | pl = pl->next) | |
7245 | if (! pl->used && strcmp (pl->name, "NONE") != 0) | |
7246 | einfo (_("%X%P: section `%s' assigned to non-existent phdr `%s'\n"), | |
afd7a018 | 7247 | os->name, pl->name); |
252b5132 RH |
7248 | } |
7249 | } | |
7250 | ||
7251 | /* Record a list of sections which may not be cross referenced. */ | |
7252 | ||
7253 | void | |
6bdafbeb | 7254 | lang_add_nocrossref (lang_nocrossref_type *l) |
252b5132 RH |
7255 | { |
7256 | struct lang_nocrossrefs *n; | |
7257 | ||
1e9cc1c2 | 7258 | n = (struct lang_nocrossrefs *) xmalloc (sizeof *n); |
252b5132 RH |
7259 | n->next = nocrossref_list; |
7260 | n->list = l; | |
7261 | nocrossref_list = n; | |
7262 | ||
7263 | /* Set notice_all so that we get informed about all symbols. */ | |
b34976b6 | 7264 | link_info.notice_all = TRUE; |
252b5132 RH |
7265 | } |
7266 | \f | |
7267 | /* Overlay handling. We handle overlays with some static variables. */ | |
7268 | ||
7269 | /* The overlay virtual address. */ | |
7270 | static etree_type *overlay_vma; | |
7e7d5768 AM |
7271 | /* And subsection alignment. */ |
7272 | static etree_type *overlay_subalign; | |
252b5132 | 7273 | |
252b5132 RH |
7274 | /* An expression for the maximum section size seen so far. */ |
7275 | static etree_type *overlay_max; | |
7276 | ||
7277 | /* A list of all the sections in this overlay. */ | |
7278 | ||
89cdebba | 7279 | struct overlay_list { |
252b5132 RH |
7280 | struct overlay_list *next; |
7281 | lang_output_section_statement_type *os; | |
7282 | }; | |
7283 | ||
7284 | static struct overlay_list *overlay_list; | |
7285 | ||
7286 | /* Start handling an overlay. */ | |
7287 | ||
7288 | void | |
7e7d5768 | 7289 | lang_enter_overlay (etree_type *vma_expr, etree_type *subalign) |
252b5132 RH |
7290 | { |
7291 | /* The grammar should prevent nested overlays from occurring. */ | |
7e7d5768 AM |
7292 | ASSERT (overlay_vma == NULL |
7293 | && overlay_subalign == NULL | |
7294 | && overlay_max == NULL); | |
252b5132 RH |
7295 | |
7296 | overlay_vma = vma_expr; | |
7e7d5768 | 7297 | overlay_subalign = subalign; |
252b5132 RH |
7298 | } |
7299 | ||
7300 | /* Start a section in an overlay. We handle this by calling | |
9f88b410 RS |
7301 | lang_enter_output_section_statement with the correct VMA. |
7302 | lang_leave_overlay sets up the LMA and memory regions. */ | |
252b5132 RH |
7303 | |
7304 | void | |
1579bae1 | 7305 | lang_enter_overlay_section (const char *name) |
252b5132 RH |
7306 | { |
7307 | struct overlay_list *n; | |
7308 | etree_type *size; | |
7309 | ||
152d792f | 7310 | lang_enter_output_section_statement (name, overlay_vma, overlay_section, |
0841712e | 7311 | 0, overlay_subalign, 0, 0); |
252b5132 | 7312 | |
9f88b410 | 7313 | /* If this is the first section, then base the VMA of future |
252b5132 RH |
7314 | sections on this one. This will work correctly even if `.' is |
7315 | used in the addresses. */ | |
7316 | if (overlay_list == NULL) | |
9f88b410 | 7317 | overlay_vma = exp_nameop (ADDR, name); |
252b5132 RH |
7318 | |
7319 | /* Remember the section. */ | |
1e9cc1c2 | 7320 | n = (struct overlay_list *) xmalloc (sizeof *n); |
252b5132 RH |
7321 | n->os = current_section; |
7322 | n->next = overlay_list; | |
7323 | overlay_list = n; | |
7324 | ||
7325 | size = exp_nameop (SIZEOF, name); | |
7326 | ||
252b5132 RH |
7327 | /* Arrange to work out the maximum section end address. */ |
7328 | if (overlay_max == NULL) | |
7329 | overlay_max = size; | |
7330 | else | |
7331 | overlay_max = exp_binop (MAX_K, overlay_max, size); | |
7332 | } | |
7333 | ||
7334 | /* Finish a section in an overlay. There isn't any special to do | |
7335 | here. */ | |
7336 | ||
7337 | void | |
1579bae1 | 7338 | lang_leave_overlay_section (fill_type *fill, |
6bdafbeb | 7339 | lang_output_section_phdr_list *phdrs) |
252b5132 RH |
7340 | { |
7341 | const char *name; | |
7342 | char *clean, *s2; | |
7343 | const char *s1; | |
7344 | char *buf; | |
7345 | ||
7346 | name = current_section->name; | |
7347 | ||
a747ee4d NC |
7348 | /* For now, assume that DEFAULT_MEMORY_REGION is the run-time memory |
7349 | region and that no load-time region has been specified. It doesn't | |
7350 | really matter what we say here, since lang_leave_overlay will | |
7351 | override it. */ | |
7352 | lang_leave_output_section_statement (fill, DEFAULT_MEMORY_REGION, phdrs, 0); | |
252b5132 RH |
7353 | |
7354 | /* Define the magic symbols. */ | |
7355 | ||
1e9cc1c2 | 7356 | clean = (char *) xmalloc (strlen (name) + 1); |
252b5132 RH |
7357 | s2 = clean; |
7358 | for (s1 = name; *s1 != '\0'; s1++) | |
3882b010 | 7359 | if (ISALNUM (*s1) || *s1 == '_') |
252b5132 RH |
7360 | *s2++ = *s1; |
7361 | *s2 = '\0'; | |
7362 | ||
1e9cc1c2 | 7363 | buf = (char *) xmalloc (strlen (clean) + sizeof "__load_start_"); |
252b5132 | 7364 | sprintf (buf, "__load_start_%s", clean); |
34711ca3 AM |
7365 | lang_add_assignment (exp_provide (buf, |
7366 | exp_nameop (LOADADDR, name), | |
7367 | FALSE)); | |
252b5132 | 7368 | |
1e9cc1c2 | 7369 | buf = (char *) xmalloc (strlen (clean) + sizeof "__load_stop_"); |
252b5132 | 7370 | sprintf (buf, "__load_stop_%s", clean); |
34711ca3 AM |
7371 | lang_add_assignment (exp_provide (buf, |
7372 | exp_binop ('+', | |
7373 | exp_nameop (LOADADDR, name), | |
7374 | exp_nameop (SIZEOF, name)), | |
7375 | FALSE)); | |
252b5132 RH |
7376 | |
7377 | free (clean); | |
7378 | } | |
7379 | ||
7380 | /* Finish an overlay. If there are any overlay wide settings, this | |
7381 | looks through all the sections in the overlay and sets them. */ | |
7382 | ||
7383 | void | |
1579bae1 AM |
7384 | lang_leave_overlay (etree_type *lma_expr, |
7385 | int nocrossrefs, | |
7386 | fill_type *fill, | |
7387 | const char *memspec, | |
6bdafbeb | 7388 | lang_output_section_phdr_list *phdrs, |
1579bae1 | 7389 | const char *lma_memspec) |
252b5132 RH |
7390 | { |
7391 | lang_memory_region_type *region; | |
562d3460 | 7392 | lang_memory_region_type *lma_region; |
252b5132 | 7393 | struct overlay_list *l; |
6bdafbeb | 7394 | lang_nocrossref_type *nocrossref; |
252b5132 | 7395 | |
ee3cc2e2 RS |
7396 | lang_get_regions (®ion, &lma_region, |
7397 | memspec, lma_memspec, | |
6bdafbeb | 7398 | lma_expr != NULL, FALSE); |
562d3460 | 7399 | |
252b5132 RH |
7400 | nocrossref = NULL; |
7401 | ||
9f88b410 RS |
7402 | /* After setting the size of the last section, set '.' to end of the |
7403 | overlay region. */ | |
7404 | if (overlay_list != NULL) | |
7405 | overlay_list->os->update_dot_tree | |
2e57b2af | 7406 | = exp_assign (".", exp_binop ('+', overlay_vma, overlay_max)); |
9f88b410 | 7407 | |
252b5132 RH |
7408 | l = overlay_list; |
7409 | while (l != NULL) | |
7410 | { | |
7411 | struct overlay_list *next; | |
7412 | ||
1579bae1 | 7413 | if (fill != NULL && l->os->fill == NULL) |
252b5132 | 7414 | l->os->fill = fill; |
1545243b | 7415 | |
9f88b410 RS |
7416 | l->os->region = region; |
7417 | l->os->lma_region = lma_region; | |
7418 | ||
7419 | /* The first section has the load address specified in the | |
7420 | OVERLAY statement. The rest are worked out from that. | |
7421 | The base address is not needed (and should be null) if | |
7422 | an LMA region was specified. */ | |
7423 | if (l->next == 0) | |
152d792f AM |
7424 | { |
7425 | l->os->load_base = lma_expr; | |
7426 | l->os->sectype = normal_section; | |
7427 | } | |
252b5132 RH |
7428 | if (phdrs != NULL && l->os->phdrs == NULL) |
7429 | l->os->phdrs = phdrs; | |
7430 | ||
9f88b410 | 7431 | if (nocrossrefs) |
252b5132 | 7432 | { |
6bdafbeb | 7433 | lang_nocrossref_type *nc; |
252b5132 | 7434 | |
1e9cc1c2 | 7435 | nc = (lang_nocrossref_type *) xmalloc (sizeof *nc); |
252b5132 RH |
7436 | nc->name = l->os->name; |
7437 | nc->next = nocrossref; | |
7438 | nocrossref = nc; | |
7439 | } | |
7440 | ||
7441 | next = l->next; | |
7442 | free (l); | |
7443 | l = next; | |
7444 | } | |
7445 | ||
7446 | if (nocrossref != NULL) | |
7447 | lang_add_nocrossref (nocrossref); | |
7448 | ||
252b5132 | 7449 | overlay_vma = NULL; |
252b5132 RH |
7450 | overlay_list = NULL; |
7451 | overlay_max = NULL; | |
7452 | } | |
7453 | \f | |
7454 | /* Version handling. This is only useful for ELF. */ | |
7455 | ||
108ba305 JJ |
7456 | /* If PREV is NULL, return first version pattern matching particular symbol. |
7457 | If PREV is non-NULL, return first version pattern matching particular | |
7458 | symbol after PREV (previously returned by lang_vers_match). */ | |
252b5132 | 7459 | |
108ba305 JJ |
7460 | static struct bfd_elf_version_expr * |
7461 | lang_vers_match (struct bfd_elf_version_expr_head *head, | |
7462 | struct bfd_elf_version_expr *prev, | |
7463 | const char *sym) | |
252b5132 | 7464 | { |
93252b1c | 7465 | const char *c_sym; |
108ba305 JJ |
7466 | const char *cxx_sym = sym; |
7467 | const char *java_sym = sym; | |
7468 | struct bfd_elf_version_expr *expr = NULL; | |
93252b1c MF |
7469 | enum demangling_styles curr_style; |
7470 | ||
7471 | curr_style = CURRENT_DEMANGLING_STYLE; | |
7472 | cplus_demangle_set_style (no_demangling); | |
7473 | c_sym = bfd_demangle (link_info.output_bfd, sym, DMGL_NO_OPTS); | |
7474 | if (!c_sym) | |
7475 | c_sym = sym; | |
7476 | cplus_demangle_set_style (curr_style); | |
252b5132 | 7477 | |
108ba305 | 7478 | if (head->mask & BFD_ELF_VERSION_CXX_TYPE) |
252b5132 | 7479 | { |
93252b1c MF |
7480 | cxx_sym = bfd_demangle (link_info.output_bfd, sym, |
7481 | DMGL_PARAMS | DMGL_ANSI); | |
108ba305 JJ |
7482 | if (!cxx_sym) |
7483 | cxx_sym = sym; | |
252b5132 | 7484 | } |
df816215 | 7485 | if (head->mask & BFD_ELF_VERSION_JAVA_TYPE) |
252b5132 | 7486 | { |
93252b1c | 7487 | java_sym = bfd_demangle (link_info.output_bfd, sym, DMGL_JAVA); |
108ba305 JJ |
7488 | if (!java_sym) |
7489 | java_sym = sym; | |
252b5132 RH |
7490 | } |
7491 | ||
ae5a3597 | 7492 | if (head->htab && (prev == NULL || prev->literal)) |
252b5132 | 7493 | { |
108ba305 JJ |
7494 | struct bfd_elf_version_expr e; |
7495 | ||
7496 | switch (prev ? prev->mask : 0) | |
7497 | { | |
967928e9 AM |
7498 | case 0: |
7499 | if (head->mask & BFD_ELF_VERSION_C_TYPE) | |
7500 | { | |
93252b1c | 7501 | e.pattern = c_sym; |
1e9cc1c2 NC |
7502 | expr = (struct bfd_elf_version_expr *) |
7503 | htab_find ((htab_t) head->htab, &e); | |
93252b1c | 7504 | while (expr && strcmp (expr->pattern, c_sym) == 0) |
967928e9 AM |
7505 | if (expr->mask == BFD_ELF_VERSION_C_TYPE) |
7506 | goto out_ret; | |
7507 | else | |
7508 | expr = expr->next; | |
7509 | } | |
7510 | /* Fallthrough */ | |
7511 | case BFD_ELF_VERSION_C_TYPE: | |
7512 | if (head->mask & BFD_ELF_VERSION_CXX_TYPE) | |
7513 | { | |
ae5a3597 | 7514 | e.pattern = cxx_sym; |
1e9cc1c2 NC |
7515 | expr = (struct bfd_elf_version_expr *) |
7516 | htab_find ((htab_t) head->htab, &e); | |
ae5a3597 | 7517 | while (expr && strcmp (expr->pattern, cxx_sym) == 0) |
967928e9 AM |
7518 | if (expr->mask == BFD_ELF_VERSION_CXX_TYPE) |
7519 | goto out_ret; | |
7520 | else | |
7521 | expr = expr->next; | |
7522 | } | |
7523 | /* Fallthrough */ | |
7524 | case BFD_ELF_VERSION_CXX_TYPE: | |
7525 | if (head->mask & BFD_ELF_VERSION_JAVA_TYPE) | |
7526 | { | |
ae5a3597 | 7527 | e.pattern = java_sym; |
1e9cc1c2 NC |
7528 | expr = (struct bfd_elf_version_expr *) |
7529 | htab_find ((htab_t) head->htab, &e); | |
ae5a3597 | 7530 | while (expr && strcmp (expr->pattern, java_sym) == 0) |
967928e9 AM |
7531 | if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE) |
7532 | goto out_ret; | |
7533 | else | |
7534 | expr = expr->next; | |
7535 | } | |
7536 | /* Fallthrough */ | |
7537 | default: | |
7538 | break; | |
108ba305 | 7539 | } |
252b5132 | 7540 | } |
108ba305 JJ |
7541 | |
7542 | /* Finally, try the wildcards. */ | |
ae5a3597 | 7543 | if (prev == NULL || prev->literal) |
108ba305 | 7544 | expr = head->remaining; |
252b5132 | 7545 | else |
108ba305 | 7546 | expr = prev->next; |
86043bbb | 7547 | for (; expr; expr = expr->next) |
252b5132 | 7548 | { |
108ba305 JJ |
7549 | const char *s; |
7550 | ||
86043bbb MM |
7551 | if (!expr->pattern) |
7552 | continue; | |
7553 | ||
108ba305 JJ |
7554 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') |
7555 | break; | |
7556 | ||
7557 | if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE) | |
7558 | s = java_sym; | |
7559 | else if (expr->mask == BFD_ELF_VERSION_CXX_TYPE) | |
7560 | s = cxx_sym; | |
7561 | else | |
93252b1c | 7562 | s = c_sym; |
5e35cbc2 | 7563 | if (fnmatch (expr->pattern, s, 0) == 0) |
108ba305 | 7564 | break; |
252b5132 RH |
7565 | } |
7566 | ||
967928e9 | 7567 | out_ret: |
93252b1c MF |
7568 | if (c_sym != sym) |
7569 | free ((char *) c_sym); | |
108ba305 JJ |
7570 | if (cxx_sym != sym) |
7571 | free ((char *) cxx_sym); | |
7572 | if (java_sym != sym) | |
7573 | free ((char *) java_sym); | |
7574 | return expr; | |
252b5132 RH |
7575 | } |
7576 | ||
5e35cbc2 | 7577 | /* Return NULL if the PATTERN argument is a glob pattern, otherwise, |
ae5a3597 | 7578 | return a pointer to the symbol name with any backslash quotes removed. */ |
5e35cbc2 L |
7579 | |
7580 | static const char * | |
7581 | realsymbol (const char *pattern) | |
7582 | { | |
7583 | const char *p; | |
7584 | bfd_boolean changed = FALSE, backslash = FALSE; | |
1e9cc1c2 | 7585 | char *s, *symbol = (char *) xmalloc (strlen (pattern) + 1); |
5e35cbc2 L |
7586 | |
7587 | for (p = pattern, s = symbol; *p != '\0'; ++p) | |
7588 | { | |
7589 | /* It is a glob pattern only if there is no preceding | |
7590 | backslash. */ | |
5e35cbc2 L |
7591 | if (backslash) |
7592 | { | |
7593 | /* Remove the preceding backslash. */ | |
7594 | *(s - 1) = *p; | |
ae5a3597 | 7595 | backslash = FALSE; |
5e35cbc2 L |
7596 | changed = TRUE; |
7597 | } | |
7598 | else | |
ae5a3597 AM |
7599 | { |
7600 | if (*p == '?' || *p == '*' || *p == '[') | |
7601 | { | |
7602 | free (symbol); | |
7603 | return NULL; | |
7604 | } | |
5e35cbc2 | 7605 | |
ae5a3597 AM |
7606 | *s++ = *p; |
7607 | backslash = *p == '\\'; | |
7608 | } | |
5e35cbc2 L |
7609 | } |
7610 | ||
7611 | if (changed) | |
7612 | { | |
7613 | *s = '\0'; | |
7614 | return symbol; | |
7615 | } | |
7616 | else | |
7617 | { | |
7618 | free (symbol); | |
7619 | return pattern; | |
7620 | } | |
7621 | } | |
7622 | ||
d3ce72d0 | 7623 | /* This is called for each variable name or match expression. NEW_NAME is |
86043bbb MM |
7624 | the name of the symbol to match, or, if LITERAL_P is FALSE, a glob |
7625 | pattern to be matched against symbol names. */ | |
252b5132 RH |
7626 | |
7627 | struct bfd_elf_version_expr * | |
1579bae1 | 7628 | lang_new_vers_pattern (struct bfd_elf_version_expr *orig, |
d3ce72d0 | 7629 | const char *new_name, |
86043bbb MM |
7630 | const char *lang, |
7631 | bfd_boolean literal_p) | |
252b5132 RH |
7632 | { |
7633 | struct bfd_elf_version_expr *ret; | |
7634 | ||
d3ce72d0 | 7635 | ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret); |
252b5132 | 7636 | ret->next = orig; |
31941635 L |
7637 | ret->symver = 0; |
7638 | ret->script = 0; | |
ae5a3597 | 7639 | ret->literal = TRUE; |
d3ce72d0 | 7640 | ret->pattern = literal_p ? new_name : realsymbol (new_name); |
ae5a3597 AM |
7641 | if (ret->pattern == NULL) |
7642 | { | |
d3ce72d0 | 7643 | ret->pattern = new_name; |
ae5a3597 AM |
7644 | ret->literal = FALSE; |
7645 | } | |
252b5132 RH |
7646 | |
7647 | if (lang == NULL || strcasecmp (lang, "C") == 0) | |
108ba305 | 7648 | ret->mask = BFD_ELF_VERSION_C_TYPE; |
252b5132 | 7649 | else if (strcasecmp (lang, "C++") == 0) |
108ba305 | 7650 | ret->mask = BFD_ELF_VERSION_CXX_TYPE; |
252b5132 | 7651 | else if (strcasecmp (lang, "Java") == 0) |
108ba305 | 7652 | ret->mask = BFD_ELF_VERSION_JAVA_TYPE; |
252b5132 RH |
7653 | else |
7654 | { | |
7655 | einfo (_("%X%P: unknown language `%s' in version information\n"), | |
7656 | lang); | |
108ba305 | 7657 | ret->mask = BFD_ELF_VERSION_C_TYPE; |
252b5132 RH |
7658 | } |
7659 | ||
fac1652d | 7660 | return ldemul_new_vers_pattern (ret); |
252b5132 RH |
7661 | } |
7662 | ||
7663 | /* This is called for each set of variable names and match | |
7664 | expressions. */ | |
7665 | ||
7666 | struct bfd_elf_version_tree * | |
1579bae1 AM |
7667 | lang_new_vers_node (struct bfd_elf_version_expr *globals, |
7668 | struct bfd_elf_version_expr *locals) | |
252b5132 RH |
7669 | { |
7670 | struct bfd_elf_version_tree *ret; | |
7671 | ||
1e9cc1c2 | 7672 | ret = (struct bfd_elf_version_tree *) xcalloc (1, sizeof *ret); |
108ba305 JJ |
7673 | ret->globals.list = globals; |
7674 | ret->locals.list = locals; | |
7675 | ret->match = lang_vers_match; | |
252b5132 | 7676 | ret->name_indx = (unsigned int) -1; |
252b5132 RH |
7677 | return ret; |
7678 | } | |
7679 | ||
7680 | /* This static variable keeps track of version indices. */ | |
7681 | ||
7682 | static int version_index; | |
7683 | ||
108ba305 JJ |
7684 | static hashval_t |
7685 | version_expr_head_hash (const void *p) | |
7686 | { | |
1e9cc1c2 NC |
7687 | const struct bfd_elf_version_expr *e = |
7688 | (const struct bfd_elf_version_expr *) p; | |
108ba305 | 7689 | |
ae5a3597 | 7690 | return htab_hash_string (e->pattern); |
108ba305 JJ |
7691 | } |
7692 | ||
7693 | static int | |
7694 | version_expr_head_eq (const void *p1, const void *p2) | |
7695 | { | |
1e9cc1c2 NC |
7696 | const struct bfd_elf_version_expr *e1 = |
7697 | (const struct bfd_elf_version_expr *) p1; | |
7698 | const struct bfd_elf_version_expr *e2 = | |
7699 | (const struct bfd_elf_version_expr *) p2; | |
108ba305 | 7700 | |
ae5a3597 | 7701 | return strcmp (e1->pattern, e2->pattern) == 0; |
108ba305 JJ |
7702 | } |
7703 | ||
7704 | static void | |
7705 | lang_finalize_version_expr_head (struct bfd_elf_version_expr_head *head) | |
7706 | { | |
7707 | size_t count = 0; | |
7708 | struct bfd_elf_version_expr *e, *next; | |
7709 | struct bfd_elf_version_expr **list_loc, **remaining_loc; | |
7710 | ||
7711 | for (e = head->list; e; e = e->next) | |
7712 | { | |
ae5a3597 | 7713 | if (e->literal) |
108ba305 JJ |
7714 | count++; |
7715 | head->mask |= e->mask; | |
7716 | } | |
7717 | ||
7718 | if (count) | |
7719 | { | |
7720 | head->htab = htab_create (count * 2, version_expr_head_hash, | |
7721 | version_expr_head_eq, NULL); | |
7722 | list_loc = &head->list; | |
7723 | remaining_loc = &head->remaining; | |
7724 | for (e = head->list; e; e = next) | |
7725 | { | |
7726 | next = e->next; | |
ae5a3597 | 7727 | if (!e->literal) |
108ba305 JJ |
7728 | { |
7729 | *remaining_loc = e; | |
7730 | remaining_loc = &e->next; | |
7731 | } | |
7732 | else | |
7733 | { | |
1e9cc1c2 | 7734 | void **loc = htab_find_slot ((htab_t) head->htab, e, INSERT); |
108ba305 JJ |
7735 | |
7736 | if (*loc) | |
7737 | { | |
7738 | struct bfd_elf_version_expr *e1, *last; | |
7739 | ||
1e9cc1c2 | 7740 | e1 = (struct bfd_elf_version_expr *) *loc; |
108ba305 JJ |
7741 | last = NULL; |
7742 | do | |
7743 | { | |
7744 | if (e1->mask == e->mask) | |
7745 | { | |
7746 | last = NULL; | |
7747 | break; | |
7748 | } | |
7749 | last = e1; | |
7750 | e1 = e1->next; | |
7751 | } | |
ae5a3597 | 7752 | while (e1 && strcmp (e1->pattern, e->pattern) == 0); |
108ba305 JJ |
7753 | |
7754 | if (last == NULL) | |
7755 | { | |
7756 | /* This is a duplicate. */ | |
7757 | /* FIXME: Memory leak. Sometimes pattern is not | |
7758 | xmalloced alone, but in larger chunk of memory. */ | |
ae5a3597 | 7759 | /* free (e->pattern); */ |
108ba305 JJ |
7760 | free (e); |
7761 | } | |
7762 | else | |
7763 | { | |
7764 | e->next = last->next; | |
7765 | last->next = e; | |
7766 | } | |
7767 | } | |
7768 | else | |
7769 | { | |
7770 | *loc = e; | |
7771 | *list_loc = e; | |
7772 | list_loc = &e->next; | |
7773 | } | |
7774 | } | |
7775 | } | |
7776 | *remaining_loc = NULL; | |
7777 | *list_loc = head->remaining; | |
7778 | } | |
7779 | else | |
7780 | head->remaining = head->list; | |
7781 | } | |
7782 | ||
252b5132 RH |
7783 | /* This is called when we know the name and dependencies of the |
7784 | version. */ | |
7785 | ||
7786 | void | |
1579bae1 AM |
7787 | lang_register_vers_node (const char *name, |
7788 | struct bfd_elf_version_tree *version, | |
7789 | struct bfd_elf_version_deps *deps) | |
252b5132 RH |
7790 | { |
7791 | struct bfd_elf_version_tree *t, **pp; | |
7792 | struct bfd_elf_version_expr *e1; | |
7793 | ||
6b9b879a JJ |
7794 | if (name == NULL) |
7795 | name = ""; | |
7796 | ||
fd91d419 L |
7797 | if (link_info.version_info != NULL |
7798 | && (name[0] == '\0' || link_info.version_info->name[0] == '\0')) | |
6b9b879a | 7799 | { |
6feb9908 AM |
7800 | einfo (_("%X%P: anonymous version tag cannot be combined" |
7801 | " with other version tags\n")); | |
5ed6aba4 | 7802 | free (version); |
6b9b879a JJ |
7803 | return; |
7804 | } | |
7805 | ||
252b5132 | 7806 | /* Make sure this node has a unique name. */ |
fd91d419 | 7807 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
7808 | if (strcmp (t->name, name) == 0) |
7809 | einfo (_("%X%P: duplicate version tag `%s'\n"), name); | |
7810 | ||
108ba305 JJ |
7811 | lang_finalize_version_expr_head (&version->globals); |
7812 | lang_finalize_version_expr_head (&version->locals); | |
7813 | ||
252b5132 RH |
7814 | /* Check the global and local match names, and make sure there |
7815 | aren't any duplicates. */ | |
7816 | ||
108ba305 | 7817 | for (e1 = version->globals.list; e1 != NULL; e1 = e1->next) |
252b5132 | 7818 | { |
fd91d419 | 7819 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
7820 | { |
7821 | struct bfd_elf_version_expr *e2; | |
7822 | ||
ae5a3597 | 7823 | if (t->locals.htab && e1->literal) |
108ba305 | 7824 | { |
1e9cc1c2 NC |
7825 | e2 = (struct bfd_elf_version_expr *) |
7826 | htab_find ((htab_t) t->locals.htab, e1); | |
ae5a3597 | 7827 | while (e2 && strcmp (e1->pattern, e2->pattern) == 0) |
108ba305 JJ |
7828 | { |
7829 | if (e1->mask == e2->mask) | |
6feb9908 | 7830 | einfo (_("%X%P: duplicate expression `%s'" |
ae5a3597 | 7831 | " in version information\n"), e1->pattern); |
108ba305 JJ |
7832 | e2 = e2->next; |
7833 | } | |
7834 | } | |
ae5a3597 | 7835 | else if (!e1->literal) |
108ba305 | 7836 | for (e2 = t->locals.remaining; e2 != NULL; e2 = e2->next) |
6feb9908 AM |
7837 | if (strcmp (e1->pattern, e2->pattern) == 0 |
7838 | && e1->mask == e2->mask) | |
7839 | einfo (_("%X%P: duplicate expression `%s'" | |
7840 | " in version information\n"), e1->pattern); | |
252b5132 RH |
7841 | } |
7842 | } | |
7843 | ||
108ba305 | 7844 | for (e1 = version->locals.list; e1 != NULL; e1 = e1->next) |
252b5132 | 7845 | { |
fd91d419 | 7846 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
7847 | { |
7848 | struct bfd_elf_version_expr *e2; | |
7849 | ||
ae5a3597 | 7850 | if (t->globals.htab && e1->literal) |
108ba305 | 7851 | { |
1e9cc1c2 NC |
7852 | e2 = (struct bfd_elf_version_expr *) |
7853 | htab_find ((htab_t) t->globals.htab, e1); | |
ae5a3597 | 7854 | while (e2 && strcmp (e1->pattern, e2->pattern) == 0) |
108ba305 JJ |
7855 | { |
7856 | if (e1->mask == e2->mask) | |
6feb9908 AM |
7857 | einfo (_("%X%P: duplicate expression `%s'" |
7858 | " in version information\n"), | |
ae5a3597 | 7859 | e1->pattern); |
108ba305 JJ |
7860 | e2 = e2->next; |
7861 | } | |
7862 | } | |
ae5a3597 | 7863 | else if (!e1->literal) |
108ba305 | 7864 | for (e2 = t->globals.remaining; e2 != NULL; e2 = e2->next) |
6feb9908 AM |
7865 | if (strcmp (e1->pattern, e2->pattern) == 0 |
7866 | && e1->mask == e2->mask) | |
7867 | einfo (_("%X%P: duplicate expression `%s'" | |
7868 | " in version information\n"), e1->pattern); | |
252b5132 RH |
7869 | } |
7870 | } | |
7871 | ||
7872 | version->deps = deps; | |
7873 | version->name = name; | |
6b9b879a JJ |
7874 | if (name[0] != '\0') |
7875 | { | |
7876 | ++version_index; | |
7877 | version->vernum = version_index; | |
7878 | } | |
7879 | else | |
7880 | version->vernum = 0; | |
252b5132 | 7881 | |
fd91d419 | 7882 | for (pp = &link_info.version_info; *pp != NULL; pp = &(*pp)->next) |
252b5132 RH |
7883 | ; |
7884 | *pp = version; | |
7885 | } | |
7886 | ||
7887 | /* This is called when we see a version dependency. */ | |
7888 | ||
7889 | struct bfd_elf_version_deps * | |
1579bae1 | 7890 | lang_add_vers_depend (struct bfd_elf_version_deps *list, const char *name) |
252b5132 RH |
7891 | { |
7892 | struct bfd_elf_version_deps *ret; | |
7893 | struct bfd_elf_version_tree *t; | |
7894 | ||
1e9cc1c2 | 7895 | ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret); |
252b5132 RH |
7896 | ret->next = list; |
7897 | ||
fd91d419 | 7898 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
7899 | { |
7900 | if (strcmp (t->name, name) == 0) | |
7901 | { | |
7902 | ret->version_needed = t; | |
7903 | return ret; | |
7904 | } | |
7905 | } | |
7906 | ||
7907 | einfo (_("%X%P: unable to find version dependency `%s'\n"), name); | |
7908 | ||
1e0061d2 | 7909 | ret->version_needed = NULL; |
252b5132 RH |
7910 | return ret; |
7911 | } | |
7912 | ||
7913 | static void | |
1579bae1 | 7914 | lang_do_version_exports_section (void) |
252b5132 RH |
7915 | { |
7916 | struct bfd_elf_version_expr *greg = NULL, *lreg; | |
7917 | ||
7918 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
7919 | { | |
7920 | asection *sec = bfd_get_section_by_name (is->the_bfd, ".exports"); | |
7921 | char *contents, *p; | |
7922 | bfd_size_type len; | |
7923 | ||
7924 | if (sec == NULL) | |
b7a26f91 | 7925 | continue; |
252b5132 | 7926 | |
eea6121a | 7927 | len = sec->size; |
1e9cc1c2 | 7928 | contents = (char *) xmalloc (len); |
252b5132 | 7929 | if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len)) |
6f9efd97 | 7930 | einfo (_("%X%P: unable to read .exports section contents\n"), sec); |
252b5132 RH |
7931 | |
7932 | p = contents; | |
89cdebba | 7933 | while (p < contents + len) |
252b5132 | 7934 | { |
86043bbb | 7935 | greg = lang_new_vers_pattern (greg, p, NULL, FALSE); |
252b5132 RH |
7936 | p = strchr (p, '\0') + 1; |
7937 | } | |
7938 | ||
7939 | /* Do not free the contents, as we used them creating the regex. */ | |
7940 | ||
7941 | /* Do not include this section in the link. */ | |
a14a5de3 | 7942 | sec->flags |= SEC_EXCLUDE | SEC_KEEP; |
252b5132 RH |
7943 | } |
7944 | ||
86043bbb | 7945 | lreg = lang_new_vers_pattern (NULL, "*", NULL, FALSE); |
252b5132 RH |
7946 | lang_register_vers_node (command_line.version_exports_section, |
7947 | lang_new_vers_node (greg, lreg), NULL); | |
7948 | } | |
577a0623 AM |
7949 | |
7950 | void | |
1579bae1 | 7951 | lang_add_unique (const char *name) |
577a0623 AM |
7952 | { |
7953 | struct unique_sections *ent; | |
7954 | ||
7955 | for (ent = unique_section_list; ent; ent = ent->next) | |
7956 | if (strcmp (ent->name, name) == 0) | |
7957 | return; | |
7958 | ||
1e9cc1c2 | 7959 | ent = (struct unique_sections *) xmalloc (sizeof *ent); |
577a0623 AM |
7960 | ent->name = xstrdup (name); |
7961 | ent->next = unique_section_list; | |
7962 | unique_section_list = ent; | |
7963 | } | |
55255dae L |
7964 | |
7965 | /* Append the list of dynamic symbols to the existing one. */ | |
7966 | ||
7967 | void | |
7968 | lang_append_dynamic_list (struct bfd_elf_version_expr *dynamic) | |
7969 | { | |
40b36307 | 7970 | if (link_info.dynamic_list) |
55255dae | 7971 | { |
07806542 JJ |
7972 | struct bfd_elf_version_expr *tail; |
7973 | for (tail = dynamic; tail->next != NULL; tail = tail->next) | |
7974 | ; | |
40b36307 L |
7975 | tail->next = link_info.dynamic_list->head.list; |
7976 | link_info.dynamic_list->head.list = dynamic; | |
55255dae L |
7977 | } |
7978 | else | |
7979 | { | |
7980 | struct bfd_elf_dynamic_list *d; | |
7981 | ||
1e9cc1c2 | 7982 | d = (struct bfd_elf_dynamic_list *) xcalloc (1, sizeof *d); |
55255dae L |
7983 | d->head.list = dynamic; |
7984 | d->match = lang_vers_match; | |
40b36307 | 7985 | link_info.dynamic_list = d; |
55255dae L |
7986 | } |
7987 | } | |
7988 | ||
7989 | /* Append the list of C++ typeinfo dynamic symbols to the existing | |
7990 | one. */ | |
7991 | ||
7992 | void | |
7993 | lang_append_dynamic_list_cpp_typeinfo (void) | |
7994 | { | |
7995 | const char * symbols [] = | |
7996 | { | |
7997 | "typeinfo name for*", | |
7998 | "typeinfo for*" | |
7999 | }; | |
8000 | struct bfd_elf_version_expr *dynamic = NULL; | |
8001 | unsigned int i; | |
8002 | ||
8003 | for (i = 0; i < ARRAY_SIZE (symbols); i++) | |
8004 | dynamic = lang_new_vers_pattern (dynamic, symbols [i], "C++", | |
8005 | FALSE); | |
8006 | ||
8007 | lang_append_dynamic_list (dynamic); | |
8008 | } | |
40b36307 L |
8009 | |
8010 | /* Append the list of C++ operator new and delete dynamic symbols to the | |
8011 | existing one. */ | |
8012 | ||
8013 | void | |
8014 | lang_append_dynamic_list_cpp_new (void) | |
8015 | { | |
8016 | const char * symbols [] = | |
8017 | { | |
8018 | "operator new*", | |
8019 | "operator delete*" | |
8020 | }; | |
8021 | struct bfd_elf_version_expr *dynamic = NULL; | |
8022 | unsigned int i; | |
8023 | ||
8024 | for (i = 0; i < ARRAY_SIZE (symbols); i++) | |
8025 | dynamic = lang_new_vers_pattern (dynamic, symbols [i], "C++", | |
8026 | FALSE); | |
8027 | ||
8028 | lang_append_dynamic_list (dynamic); | |
8029 | } | |
01554a74 AM |
8030 | |
8031 | /* Scan a space and/or comma separated string of features. */ | |
8032 | ||
8033 | void | |
8034 | lang_ld_feature (char *str) | |
8035 | { | |
8036 | char *p, *q; | |
8037 | ||
8038 | p = str; | |
8039 | while (*p) | |
8040 | { | |
8041 | char sep; | |
8042 | while (*p == ',' || ISSPACE (*p)) | |
8043 | ++p; | |
8044 | if (!*p) | |
8045 | break; | |
8046 | q = p + 1; | |
8047 | while (*q && *q != ',' && !ISSPACE (*q)) | |
8048 | ++q; | |
8049 | sep = *q; | |
8050 | *q = 0; | |
8051 | if (strcasecmp (p, "SANE_EXPR") == 0) | |
8052 | config.sane_expr = TRUE; | |
8053 | else | |
8054 | einfo (_("%X%P: unknown feature `%s'\n"), p); | |
8055 | *q = sep; | |
8056 | p = q; | |
8057 | } | |
8058 | } |