Commit | Line | Data |
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252b5132 | 1 | /* Linker command language support. |
219d1afa | 2 | Copyright (C) 1991-2018 Free Software Foundation, Inc. |
252b5132 | 3 | |
f96b4a7b | 4 | This file is part of the GNU Binutils. |
252b5132 | 5 | |
f96b4a7b | 6 | This program is free software; you can redistribute it and/or modify |
53b2a62f | 7 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
8 | the Free Software Foundation; either version 3 of the License, or |
9 | (at your option) any later version. | |
252b5132 | 10 | |
f96b4a7b | 11 | This program is distributed in the hope that it will be useful, |
53b2a62f NC |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
252b5132 | 15 | |
53b2a62f | 16 | You should have received a copy of the GNU General Public License |
f96b4a7b NC |
17 | along with this program; if not, write to the Free Software |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
252b5132 | 20 | |
252b5132 | 21 | #include "sysdep.h" |
3db64b00 | 22 | #include "bfd.h" |
252b5132 | 23 | #include "libiberty.h" |
42627821 | 24 | #include "filenames.h" |
3882b010 | 25 | #include "safe-ctype.h" |
252b5132 RH |
26 | #include "obstack.h" |
27 | #include "bfdlink.h" | |
28 | ||
29 | #include "ld.h" | |
30 | #include "ldmain.h" | |
252b5132 RH |
31 | #include "ldexp.h" |
32 | #include "ldlang.h" | |
df2a7313 | 33 | #include <ldgram.h> |
252b5132 RH |
34 | #include "ldlex.h" |
35 | #include "ldmisc.h" | |
36 | #include "ldctor.h" | |
37 | #include "ldfile.h" | |
b71e2778 | 38 | #include "ldemul.h" |
252b5132 RH |
39 | #include "fnmatch.h" |
40 | #include "demangle.h" | |
108ba305 | 41 | #include "hashtab.h" |
0fef4b98 | 42 | #include "elf-bfd.h" |
5d3236ee DK |
43 | #ifdef ENABLE_PLUGINS |
44 | #include "plugin.h" | |
45 | #endif /* ENABLE_PLUGINS */ | |
252b5132 | 46 | |
7abb6dea | 47 | #ifndef offsetof |
cf888e70 | 48 | #define offsetof(TYPE, MEMBER) ((size_t) & (((TYPE*) 0)->MEMBER)) |
7abb6dea AM |
49 | #endif |
50 | ||
fc90c280 AM |
51 | /* Convert between addresses in bytes and sizes in octets. |
52 | For currently supported targets, octets_per_byte is always a power | |
53 | of two, so we can use shifts. */ | |
54 | #define TO_ADDR(X) ((X) >> opb_shift) | |
55 | #define TO_SIZE(X) ((X) << opb_shift) | |
56 | ||
57 | /* Local variables. */ | |
252b5132 | 58 | static struct obstack stat_obstack; |
35835446 | 59 | static struct obstack map_obstack; |
252b5132 RH |
60 | |
61 | #define obstack_chunk_alloc xmalloc | |
62 | #define obstack_chunk_free free | |
8be573a7 | 63 | static const char *entry_symbol_default = "start"; |
18cd5bce | 64 | static bfd_boolean map_head_is_link_order = FALSE; |
252b5132 | 65 | static lang_output_section_statement_type *default_common_section; |
b34976b6 | 66 | static bfd_boolean map_option_f; |
252b5132 RH |
67 | static bfd_vma print_dot; |
68 | static lang_input_statement_type *first_file; | |
5f992e62 | 69 | static const char *current_target; |
252b5132 | 70 | static lang_statement_list_type statement_list; |
bde18da4 AM |
71 | static lang_statement_list_type *stat_save[10]; |
72 | static lang_statement_list_type **stat_save_ptr = &stat_save[0]; | |
c4b78195 | 73 | static struct unique_sections *unique_section_list; |
16e4ecc0 | 74 | static struct asneeded_minfo *asneeded_list_head; |
fc90c280 | 75 | static unsigned int opb_shift = 0; |
252b5132 | 76 | |
cf888e70 | 77 | /* Forward declarations. */ |
a431bc2e | 78 | static void exp_init_os (etree_type *); |
1579bae1 | 79 | static lang_input_statement_type *lookup_name (const char *); |
1579bae1 | 80 | static void insert_undefined (const char *); |
35835446 | 81 | static bfd_boolean sort_def_symbol (struct bfd_link_hash_entry *, void *); |
1579bae1 AM |
82 | static void print_statement (lang_statement_union_type *, |
83 | lang_output_section_statement_type *); | |
84 | static void print_statement_list (lang_statement_union_type *, | |
85 | lang_output_section_statement_type *); | |
86 | static void print_statements (void); | |
d64703c6 | 87 | static void print_input_section (asection *, bfd_boolean); |
1579bae1 AM |
88 | static bfd_boolean lang_one_common (struct bfd_link_hash_entry *, void *); |
89 | static void lang_record_phdrs (void); | |
90 | static void lang_do_version_exports_section (void); | |
55255dae L |
91 | static void lang_finalize_version_expr_head |
92 | (struct bfd_elf_version_expr_head *); | |
cc9ad334 | 93 | static void lang_do_memory_regions (void); |
1579bae1 | 94 | |
cf888e70 | 95 | /* Exported variables. */ |
8be573a7 | 96 | const char *output_target; |
252b5132 | 97 | lang_output_section_statement_type *abs_output_section; |
aea4bd9d | 98 | lang_statement_list_type lang_output_section_statement; |
252b5132 | 99 | lang_statement_list_type *stat_ptr = &statement_list; |
87f2a346 | 100 | lang_statement_list_type file_chain = { NULL, NULL }; |
dc27aea4 | 101 | lang_statement_list_type input_file_chain; |
e3e942e9 | 102 | struct bfd_sym_chain entry_symbol = { NULL, NULL }; |
1e281515 | 103 | const char *entry_section = ".text"; |
66be1055 | 104 | struct lang_input_statement_flags input_flags; |
b34976b6 | 105 | bfd_boolean entry_from_cmdline; |
24898b70 | 106 | bfd_boolean undef_from_cmdline; |
b34976b6 AM |
107 | bfd_boolean lang_has_input_file = FALSE; |
108 | bfd_boolean had_output_filename = FALSE; | |
109 | bfd_boolean lang_float_flag = FALSE; | |
110 | bfd_boolean delete_output_file_on_failure = FALSE; | |
f5ff60a6 | 111 | struct lang_phdr *lang_phdr_list; |
252b5132 | 112 | struct lang_nocrossrefs *nocrossref_list; |
16e4ecc0 | 113 | struct asneeded_minfo **asneeded_list_tail; |
e9ee469a AM |
114 | |
115 | /* Functions that traverse the linker script and might evaluate | |
fa72205c | 116 | DEFINED() need to increment this at the start of the traversal. */ |
420e579c | 117 | int lang_statement_iteration = 0; |
252b5132 | 118 | |
61f5d054 L |
119 | /* Return TRUE if the PATTERN argument is a wildcard pattern. |
120 | Although backslashes are treated specially if a pattern contains | |
121 | wildcards, we do not consider the mere presence of a backslash to | |
122 | be enough to cause the pattern to be treated as a wildcard. | |
123 | That lets us handle DOS filenames more naturally. */ | |
124 | #define wildcardp(pattern) (strpbrk ((pattern), "?*[") != NULL) | |
125 | ||
d1778b88 | 126 | #define new_stat(x, y) \ |
1579bae1 | 127 | (x##_type *) new_statement (x##_enum, sizeof (x##_type), y) |
252b5132 | 128 | |
d1778b88 AM |
129 | #define outside_section_address(q) \ |
130 | ((q)->output_offset + (q)->output_section->vma) | |
252b5132 | 131 | |
d1778b88 AM |
132 | #define outside_symbol_address(q) \ |
133 | ((q)->value + outside_section_address (q->section)) | |
252b5132 RH |
134 | |
135 | #define SECTION_NAME_MAP_LENGTH (16) | |
136 | ||
1579bae1 AM |
137 | void * |
138 | stat_alloc (size_t size) | |
252b5132 RH |
139 | { |
140 | return obstack_alloc (&stat_obstack, size); | |
141 | } | |
142 | ||
97407faf AM |
143 | static int |
144 | name_match (const char *pattern, const char *name) | |
145 | { | |
146 | if (wildcardp (pattern)) | |
147 | return fnmatch (pattern, name, 0); | |
148 | return strcmp (pattern, name); | |
149 | } | |
150 | ||
151 | /* If PATTERN is of the form archive:file, return a pointer to the | |
152 | separator. If not, return NULL. */ | |
153 | ||
154 | static char * | |
155 | archive_path (const char *pattern) | |
156 | { | |
157 | char *p = NULL; | |
158 | ||
159 | if (link_info.path_separator == 0) | |
160 | return p; | |
161 | ||
162 | p = strchr (pattern, link_info.path_separator); | |
163 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
164 | if (p == NULL || link_info.path_separator != ':') | |
165 | return p; | |
166 | ||
167 | /* Assume a match on the second char is part of drive specifier, | |
168 | as in "c:\silly.dos". */ | |
967928e9 | 169 | if (p == pattern + 1 && ISALPHA (*pattern)) |
97407faf AM |
170 | p = strchr (p + 1, link_info.path_separator); |
171 | #endif | |
172 | return p; | |
173 | } | |
174 | ||
967928e9 AM |
175 | /* Given that FILE_SPEC results in a non-NULL SEP result from archive_path, |
176 | return whether F matches FILE_SPEC. */ | |
177 | ||
178 | static bfd_boolean | |
179 | input_statement_is_archive_path (const char *file_spec, char *sep, | |
180 | lang_input_statement_type *f) | |
181 | { | |
182 | bfd_boolean match = FALSE; | |
183 | ||
184 | if ((*(sep + 1) == 0 | |
185 | || name_match (sep + 1, f->filename) == 0) | |
186 | && ((sep != file_spec) | |
187 | == (f->the_bfd != NULL && f->the_bfd->my_archive != NULL))) | |
188 | { | |
189 | match = TRUE; | |
190 | ||
191 | if (sep != file_spec) | |
192 | { | |
193 | const char *aname = f->the_bfd->my_archive->filename; | |
194 | *sep = 0; | |
195 | match = name_match (file_spec, aname) == 0; | |
196 | *sep = link_info.path_separator; | |
197 | } | |
198 | } | |
199 | return match; | |
200 | } | |
201 | ||
8a99a385 | 202 | static bfd_boolean |
d0bf826b AM |
203 | unique_section_p (const asection *sec, |
204 | const lang_output_section_statement_type *os) | |
577a0623 AM |
205 | { |
206 | struct unique_sections *unam; | |
d0d6a25b | 207 | const char *secnam; |
577a0623 | 208 | |
7bdf4127 | 209 | if (!link_info.resolve_section_groups |
d0d6a25b AM |
210 | && sec->owner != NULL |
211 | && bfd_is_group_section (sec->owner, sec)) | |
d0bf826b AM |
212 | return !(os != NULL |
213 | && strcmp (os->name, DISCARD_SECTION_NAME) == 0); | |
d0d6a25b AM |
214 | |
215 | secnam = sec->name; | |
577a0623 | 216 | for (unam = unique_section_list; unam; unam = unam->next) |
97407faf AM |
217 | if (name_match (unam->name, secnam) == 0) |
218 | return TRUE; | |
577a0623 | 219 | |
b34976b6 | 220 | return FALSE; |
577a0623 AM |
221 | } |
222 | ||
08da4cac | 223 | /* Generic traversal routines for finding matching sections. */ |
4dec4d4e | 224 | |
8f1732fc AB |
225 | /* Return true if FILE matches a pattern in EXCLUDE_LIST, otherwise return |
226 | false. */ | |
72223188 | 227 | |
8f1732fc AB |
228 | static bfd_boolean |
229 | walk_wild_file_in_exclude_list (struct name_list *exclude_list, | |
6c19b93b | 230 | lang_input_statement_type *file) |
4dec4d4e | 231 | { |
72223188 JJ |
232 | struct name_list *list_tmp; |
233 | ||
8f1732fc | 234 | for (list_tmp = exclude_list; |
72223188 JJ |
235 | list_tmp; |
236 | list_tmp = list_tmp->next) | |
237 | { | |
967928e9 | 238 | char *p = archive_path (list_tmp->name); |
b6bf44ba | 239 | |
967928e9 | 240 | if (p != NULL) |
72223188 | 241 | { |
967928e9 | 242 | if (input_statement_is_archive_path (list_tmp->name, p, file)) |
8f1732fc | 243 | return TRUE; |
72223188 JJ |
244 | } |
245 | ||
967928e9 | 246 | else if (name_match (list_tmp->name, file->filename) == 0) |
8f1732fc | 247 | return TRUE; |
967928e9 AM |
248 | |
249 | /* FIXME: Perhaps remove the following at some stage? Matching | |
250 | unadorned archives like this was never documented and has | |
251 | been superceded by the archive:path syntax. */ | |
252 | else if (file->the_bfd != NULL | |
253 | && file->the_bfd->my_archive != NULL | |
254 | && name_match (list_tmp->name, | |
255 | file->the_bfd->my_archive->filename) == 0) | |
8f1732fc | 256 | return TRUE; |
72223188 JJ |
257 | } |
258 | ||
8f1732fc AB |
259 | return FALSE; |
260 | } | |
261 | ||
262 | /* Try processing a section against a wildcard. This just calls | |
263 | the callback unless the filename exclusion list is present | |
264 | and excludes the file. It's hardly ever present so this | |
265 | function is very fast. */ | |
266 | ||
267 | static void | |
268 | walk_wild_consider_section (lang_wild_statement_type *ptr, | |
269 | lang_input_statement_type *file, | |
270 | asection *s, | |
271 | struct wildcard_list *sec, | |
272 | callback_t callback, | |
273 | void *data) | |
274 | { | |
275 | /* Don't process sections from files which were excluded. */ | |
276 | if (walk_wild_file_in_exclude_list (sec->spec.exclude_name_list, file)) | |
277 | return; | |
278 | ||
b9c361e0 | 279 | (*callback) (ptr, sec, s, ptr->section_flag_list, file, data); |
72223188 JJ |
280 | } |
281 | ||
282 | /* Lowest common denominator routine that can handle everything correctly, | |
283 | but slowly. */ | |
284 | ||
285 | static void | |
286 | walk_wild_section_general (lang_wild_statement_type *ptr, | |
287 | lang_input_statement_type *file, | |
288 | callback_t callback, | |
289 | void *data) | |
290 | { | |
291 | asection *s; | |
292 | struct wildcard_list *sec; | |
b6bf44ba AM |
293 | |
294 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
4dec4d4e | 295 | { |
b6bf44ba | 296 | sec = ptr->section_list; |
2181f54f | 297 | if (sec == NULL) |
b9c361e0 | 298 | (*callback) (ptr, sec, s, ptr->section_flag_list, file, data); |
2181f54f AM |
299 | |
300 | while (sec != NULL) | |
08da4cac | 301 | { |
b34976b6 | 302 | bfd_boolean skip = FALSE; |
2181f54f | 303 | |
72223188 | 304 | if (sec->spec.name != NULL) |
b6bf44ba | 305 | { |
2181f54f AM |
306 | const char *sname = bfd_get_section_name (file->the_bfd, s); |
307 | ||
97407faf | 308 | skip = name_match (sec->spec.name, sname) != 0; |
b6bf44ba | 309 | } |
4dec4d4e | 310 | |
b6bf44ba | 311 | if (!skip) |
72223188 | 312 | walk_wild_consider_section (ptr, file, s, sec, callback, data); |
4dec4d4e | 313 | |
2181f54f | 314 | sec = sec->next; |
4dec4d4e RH |
315 | } |
316 | } | |
317 | } | |
318 | ||
72223188 JJ |
319 | /* Routines to find a single section given its name. If there's more |
320 | than one section with that name, we report that. */ | |
321 | ||
322 | typedef struct | |
323 | { | |
324 | asection *found_section; | |
325 | bfd_boolean multiple_sections_found; | |
326 | } section_iterator_callback_data; | |
327 | ||
328 | static bfd_boolean | |
91d6fa6a | 329 | section_iterator_callback (bfd *abfd ATTRIBUTE_UNUSED, asection *s, void *data) |
72223188 | 330 | { |
1e9cc1c2 | 331 | section_iterator_callback_data *d = (section_iterator_callback_data *) data; |
72223188 JJ |
332 | |
333 | if (d->found_section != NULL) | |
334 | { | |
335 | d->multiple_sections_found = TRUE; | |
336 | return TRUE; | |
337 | } | |
338 | ||
339 | d->found_section = s; | |
340 | return FALSE; | |
341 | } | |
342 | ||
343 | static asection * | |
344 | find_section (lang_input_statement_type *file, | |
345 | struct wildcard_list *sec, | |
346 | bfd_boolean *multiple_sections_found) | |
347 | { | |
348 | section_iterator_callback_data cb_data = { NULL, FALSE }; | |
349 | ||
329c1c86 | 350 | bfd_get_section_by_name_if (file->the_bfd, sec->spec.name, |
72223188 JJ |
351 | section_iterator_callback, &cb_data); |
352 | *multiple_sections_found = cb_data.multiple_sections_found; | |
353 | return cb_data.found_section; | |
354 | } | |
355 | ||
356 | /* Code for handling simple wildcards without going through fnmatch, | |
357 | which can be expensive because of charset translations etc. */ | |
358 | ||
359 | /* A simple wild is a literal string followed by a single '*', | |
360 | where the literal part is at least 4 characters long. */ | |
361 | ||
362 | static bfd_boolean | |
363 | is_simple_wild (const char *name) | |
364 | { | |
365 | size_t len = strcspn (name, "*?["); | |
366 | return len >= 4 && name[len] == '*' && name[len + 1] == '\0'; | |
367 | } | |
368 | ||
369 | static bfd_boolean | |
370 | match_simple_wild (const char *pattern, const char *name) | |
371 | { | |
372 | /* The first four characters of the pattern are guaranteed valid | |
373 | non-wildcard characters. So we can go faster. */ | |
374 | if (pattern[0] != name[0] || pattern[1] != name[1] | |
375 | || pattern[2] != name[2] || pattern[3] != name[3]) | |
376 | return FALSE; | |
377 | ||
378 | pattern += 4; | |
379 | name += 4; | |
380 | while (*pattern != '*') | |
381 | if (*name++ != *pattern++) | |
382 | return FALSE; | |
383 | ||
384 | return TRUE; | |
385 | } | |
386 | ||
02ecc8e9 L |
387 | /* Return the numerical value of the init_priority attribute from |
388 | section name NAME. */ | |
389 | ||
390 | static unsigned long | |
391 | get_init_priority (const char *name) | |
392 | { | |
393 | char *end; | |
394 | unsigned long init_priority; | |
395 | ||
396 | /* GCC uses the following section names for the init_priority | |
397 | attribute with numerical values 101 and 65535 inclusive. A | |
398 | lower value means a higher priority. | |
399 | ||
400 | 1: .init_array.NNNN/.fini_array.NNNN: Where NNNN is the | |
401 | decimal numerical value of the init_priority attribute. | |
402 | The order of execution in .init_array is forward and | |
403 | .fini_array is backward. | |
61087d8c | 404 | 2: .ctors.NNNN/.dtors.NNNN: Where NNNN is 65535 minus the |
02ecc8e9 L |
405 | decimal numerical value of the init_priority attribute. |
406 | The order of execution in .ctors is backward and .dtors | |
407 | is forward. | |
408 | */ | |
409 | if (strncmp (name, ".init_array.", 12) == 0 | |
410 | || strncmp (name, ".fini_array.", 12) == 0) | |
411 | { | |
412 | init_priority = strtoul (name + 12, &end, 10); | |
413 | return *end ? 0 : init_priority; | |
414 | } | |
415 | else if (strncmp (name, ".ctors.", 7) == 0 | |
416 | || strncmp (name, ".dtors.", 7) == 0) | |
417 | { | |
418 | init_priority = strtoul (name + 7, &end, 10); | |
419 | return *end ? 0 : 65535 - init_priority; | |
420 | } | |
421 | ||
422 | return 0; | |
423 | } | |
424 | ||
50c77e5d NC |
425 | /* Compare sections ASEC and BSEC according to SORT. */ |
426 | ||
427 | static int | |
428 | compare_section (sort_type sort, asection *asec, asection *bsec) | |
429 | { | |
430 | int ret; | |
02ecc8e9 | 431 | unsigned long ainit_priority, binit_priority; |
50c77e5d NC |
432 | |
433 | switch (sort) | |
434 | { | |
435 | default: | |
436 | abort (); | |
437 | ||
02ecc8e9 L |
438 | case by_init_priority: |
439 | ainit_priority | |
440 | = get_init_priority (bfd_get_section_name (asec->owner, asec)); | |
441 | binit_priority | |
442 | = get_init_priority (bfd_get_section_name (bsec->owner, bsec)); | |
443 | if (ainit_priority == 0 || binit_priority == 0) | |
444 | goto sort_by_name; | |
445 | ret = ainit_priority - binit_priority; | |
446 | if (ret) | |
447 | break; | |
448 | else | |
449 | goto sort_by_name; | |
450 | ||
50c77e5d NC |
451 | case by_alignment_name: |
452 | ret = (bfd_section_alignment (bsec->owner, bsec) | |
453 | - bfd_section_alignment (asec->owner, asec)); | |
454 | if (ret) | |
455 | break; | |
456 | /* Fall through. */ | |
457 | ||
458 | case by_name: | |
02ecc8e9 | 459 | sort_by_name: |
50c77e5d NC |
460 | ret = strcmp (bfd_get_section_name (asec->owner, asec), |
461 | bfd_get_section_name (bsec->owner, bsec)); | |
462 | break; | |
463 | ||
464 | case by_name_alignment: | |
465 | ret = strcmp (bfd_get_section_name (asec->owner, asec), | |
466 | bfd_get_section_name (bsec->owner, bsec)); | |
467 | if (ret) | |
468 | break; | |
469 | /* Fall through. */ | |
470 | ||
471 | case by_alignment: | |
472 | ret = (bfd_section_alignment (bsec->owner, bsec) | |
473 | - bfd_section_alignment (asec->owner, asec)); | |
474 | break; | |
475 | } | |
476 | ||
477 | return ret; | |
478 | } | |
479 | ||
329c1c86 | 480 | /* Build a Binary Search Tree to sort sections, unlike insertion sort |
50c77e5d NC |
481 | used in wild_sort(). BST is considerably faster if the number of |
482 | of sections are large. */ | |
483 | ||
484 | static lang_section_bst_type ** | |
485 | wild_sort_fast (lang_wild_statement_type *wild, | |
329c1c86 AM |
486 | struct wildcard_list *sec, |
487 | lang_input_statement_type *file ATTRIBUTE_UNUSED, | |
488 | asection *section) | |
50c77e5d | 489 | { |
329c1c86 | 490 | lang_section_bst_type **tree; |
50c77e5d | 491 | |
e6f2cbf5 | 492 | tree = &wild->tree; |
50c77e5d | 493 | if (!wild->filenames_sorted |
329c1c86 | 494 | && (sec == NULL || sec->spec.sorted == none)) |
50c77e5d NC |
495 | { |
496 | /* Append at the right end of tree. */ | |
497 | while (*tree) | |
329c1c86 | 498 | tree = &((*tree)->right); |
50c77e5d NC |
499 | return tree; |
500 | } | |
501 | ||
329c1c86 | 502 | while (*tree) |
50c77e5d NC |
503 | { |
504 | /* Find the correct node to append this section. */ | |
329c1c86 AM |
505 | if (compare_section (sec->spec.sorted, section, (*tree)->section) < 0) |
506 | tree = &((*tree)->left); | |
507 | else | |
508 | tree = &((*tree)->right); | |
50c77e5d NC |
509 | } |
510 | ||
511 | return tree; | |
512 | } | |
513 | ||
514 | /* Use wild_sort_fast to build a BST to sort sections. */ | |
515 | ||
516 | static void | |
517 | output_section_callback_fast (lang_wild_statement_type *ptr, | |
329c1c86 AM |
518 | struct wildcard_list *sec, |
519 | asection *section, | |
b9c361e0 | 520 | struct flag_info *sflag_list ATTRIBUTE_UNUSED, |
329c1c86 | 521 | lang_input_statement_type *file, |
d0bf826b | 522 | void *output) |
50c77e5d NC |
523 | { |
524 | lang_section_bst_type *node; | |
525 | lang_section_bst_type **tree; | |
d0bf826b | 526 | lang_output_section_statement_type *os; |
50c77e5d | 527 | |
d0bf826b AM |
528 | os = (lang_output_section_statement_type *) output; |
529 | ||
530 | if (unique_section_p (section, os)) | |
50c77e5d NC |
531 | return; |
532 | ||
1e9cc1c2 | 533 | node = (lang_section_bst_type *) xmalloc (sizeof (lang_section_bst_type)); |
50c77e5d NC |
534 | node->left = 0; |
535 | node->right = 0; | |
536 | node->section = section; | |
537 | ||
538 | tree = wild_sort_fast (ptr, sec, file, section); | |
539 | if (tree != NULL) | |
540 | *tree = node; | |
541 | } | |
542 | ||
543 | /* Convert a sorted sections' BST back to list form. */ | |
544 | ||
545 | static void | |
329c1c86 AM |
546 | output_section_callback_tree_to_list (lang_wild_statement_type *ptr, |
547 | lang_section_bst_type *tree, | |
548 | void *output) | |
50c77e5d NC |
549 | { |
550 | if (tree->left) | |
551 | output_section_callback_tree_to_list (ptr, tree->left, output); | |
552 | ||
b9c361e0 | 553 | lang_add_section (&ptr->children, tree->section, NULL, |
329c1c86 | 554 | (lang_output_section_statement_type *) output); |
50c77e5d NC |
555 | |
556 | if (tree->right) | |
557 | output_section_callback_tree_to_list (ptr, tree->right, output); | |
558 | ||
559 | free (tree); | |
560 | } | |
561 | ||
72223188 JJ |
562 | /* Specialized, optimized routines for handling different kinds of |
563 | wildcards */ | |
564 | ||
565 | static void | |
566 | walk_wild_section_specs1_wild0 (lang_wild_statement_type *ptr, | |
567 | lang_input_statement_type *file, | |
568 | callback_t callback, | |
569 | void *data) | |
570 | { | |
571 | /* We can just do a hash lookup for the section with the right name. | |
572 | But if that lookup discovers more than one section with the name | |
573 | (should be rare), we fall back to the general algorithm because | |
574 | we would otherwise have to sort the sections to make sure they | |
575 | get processed in the bfd's order. */ | |
576 | bfd_boolean multiple_sections_found; | |
577 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
578 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
579 | ||
580 | if (multiple_sections_found) | |
581 | walk_wild_section_general (ptr, file, callback, data); | |
582 | else if (s0) | |
583 | walk_wild_consider_section (ptr, file, s0, sec0, callback, data); | |
584 | } | |
585 | ||
586 | static void | |
587 | walk_wild_section_specs1_wild1 (lang_wild_statement_type *ptr, | |
588 | lang_input_statement_type *file, | |
589 | callback_t callback, | |
590 | void *data) | |
591 | { | |
592 | asection *s; | |
593 | struct wildcard_list *wildsec0 = ptr->handler_data[0]; | |
594 | ||
595 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
596 | { | |
597 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
598 | bfd_boolean skip = !match_simple_wild (wildsec0->spec.name, sname); | |
599 | ||
600 | if (!skip) | |
601 | walk_wild_consider_section (ptr, file, s, wildsec0, callback, data); | |
602 | } | |
603 | } | |
604 | ||
605 | static void | |
606 | walk_wild_section_specs2_wild1 (lang_wild_statement_type *ptr, | |
607 | lang_input_statement_type *file, | |
608 | callback_t callback, | |
609 | void *data) | |
610 | { | |
611 | asection *s; | |
612 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
613 | struct wildcard_list *wildsec1 = ptr->handler_data[1]; | |
614 | bfd_boolean multiple_sections_found; | |
615 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
616 | ||
617 | if (multiple_sections_found) | |
618 | { | |
619 | walk_wild_section_general (ptr, file, callback, data); | |
620 | return; | |
621 | } | |
622 | ||
623 | /* Note that if the section was not found, s0 is NULL and | |
624 | we'll simply never succeed the s == s0 test below. */ | |
625 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
626 | { | |
627 | /* Recall that in this code path, a section cannot satisfy more | |
628 | than one spec, so if s == s0 then it cannot match | |
629 | wildspec1. */ | |
630 | if (s == s0) | |
631 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
632 | else | |
633 | { | |
634 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
635 | bfd_boolean skip = !match_simple_wild (wildsec1->spec.name, sname); | |
636 | ||
637 | if (!skip) | |
638 | walk_wild_consider_section (ptr, file, s, wildsec1, callback, | |
639 | data); | |
640 | } | |
641 | } | |
642 | } | |
643 | ||
644 | static void | |
645 | walk_wild_section_specs3_wild2 (lang_wild_statement_type *ptr, | |
646 | lang_input_statement_type *file, | |
647 | callback_t callback, | |
648 | void *data) | |
649 | { | |
650 | asection *s; | |
651 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
652 | struct wildcard_list *wildsec1 = ptr->handler_data[1]; | |
653 | struct wildcard_list *wildsec2 = ptr->handler_data[2]; | |
654 | bfd_boolean multiple_sections_found; | |
655 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
656 | ||
657 | if (multiple_sections_found) | |
658 | { | |
659 | walk_wild_section_general (ptr, file, callback, data); | |
660 | return; | |
661 | } | |
662 | ||
663 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
664 | { | |
665 | if (s == s0) | |
666 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
667 | else | |
668 | { | |
669 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
670 | bfd_boolean skip = !match_simple_wild (wildsec1->spec.name, sname); | |
671 | ||
672 | if (!skip) | |
673 | walk_wild_consider_section (ptr, file, s, wildsec1, callback, data); | |
674 | else | |
675 | { | |
676 | skip = !match_simple_wild (wildsec2->spec.name, sname); | |
677 | if (!skip) | |
678 | walk_wild_consider_section (ptr, file, s, wildsec2, callback, | |
679 | data); | |
680 | } | |
681 | } | |
682 | } | |
683 | } | |
684 | ||
685 | static void | |
686 | walk_wild_section_specs4_wild2 (lang_wild_statement_type *ptr, | |
687 | lang_input_statement_type *file, | |
688 | callback_t callback, | |
689 | void *data) | |
690 | { | |
691 | asection *s; | |
692 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
693 | struct wildcard_list *sec1 = ptr->handler_data[1]; | |
694 | struct wildcard_list *wildsec2 = ptr->handler_data[2]; | |
695 | struct wildcard_list *wildsec3 = ptr->handler_data[3]; | |
696 | bfd_boolean multiple_sections_found; | |
697 | asection *s0 = find_section (file, sec0, &multiple_sections_found), *s1; | |
698 | ||
699 | if (multiple_sections_found) | |
700 | { | |
701 | walk_wild_section_general (ptr, file, callback, data); | |
702 | return; | |
703 | } | |
704 | ||
705 | s1 = find_section (file, sec1, &multiple_sections_found); | |
706 | if (multiple_sections_found) | |
707 | { | |
708 | walk_wild_section_general (ptr, file, callback, data); | |
709 | return; | |
710 | } | |
711 | ||
712 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
713 | { | |
714 | if (s == s0) | |
715 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
716 | else | |
717 | if (s == s1) | |
718 | walk_wild_consider_section (ptr, file, s, sec1, callback, data); | |
719 | else | |
720 | { | |
721 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
722 | bfd_boolean skip = !match_simple_wild (wildsec2->spec.name, | |
723 | sname); | |
724 | ||
725 | if (!skip) | |
726 | walk_wild_consider_section (ptr, file, s, wildsec2, callback, | |
727 | data); | |
728 | else | |
729 | { | |
730 | skip = !match_simple_wild (wildsec3->spec.name, sname); | |
731 | if (!skip) | |
732 | walk_wild_consider_section (ptr, file, s, wildsec3, | |
733 | callback, data); | |
734 | } | |
735 | } | |
736 | } | |
737 | } | |
738 | ||
739 | static void | |
740 | walk_wild_section (lang_wild_statement_type *ptr, | |
741 | lang_input_statement_type *file, | |
742 | callback_t callback, | |
743 | void *data) | |
744 | { | |
66be1055 | 745 | if (file->flags.just_syms) |
72223188 JJ |
746 | return; |
747 | ||
748 | (*ptr->walk_wild_section_handler) (ptr, file, callback, data); | |
749 | } | |
750 | ||
751 | /* Returns TRUE when name1 is a wildcard spec that might match | |
752 | something name2 can match. We're conservative: we return FALSE | |
753 | only if the prefixes of name1 and name2 are different up to the | |
754 | first wildcard character. */ | |
755 | ||
756 | static bfd_boolean | |
757 | wild_spec_can_overlap (const char *name1, const char *name2) | |
758 | { | |
759 | size_t prefix1_len = strcspn (name1, "?*["); | |
760 | size_t prefix2_len = strcspn (name2, "?*["); | |
761 | size_t min_prefix_len; | |
762 | ||
763 | /* Note that if there is no wildcard character, then we treat the | |
764 | terminating 0 as part of the prefix. Thus ".text" won't match | |
765 | ".text." or ".text.*", for example. */ | |
766 | if (name1[prefix1_len] == '\0') | |
767 | prefix1_len++; | |
768 | if (name2[prefix2_len] == '\0') | |
769 | prefix2_len++; | |
770 | ||
771 | min_prefix_len = prefix1_len < prefix2_len ? prefix1_len : prefix2_len; | |
772 | ||
773 | return memcmp (name1, name2, min_prefix_len) == 0; | |
774 | } | |
775 | ||
776 | /* Select specialized code to handle various kinds of wildcard | |
777 | statements. */ | |
778 | ||
779 | static void | |
780 | analyze_walk_wild_section_handler (lang_wild_statement_type *ptr) | |
781 | { | |
782 | int sec_count = 0; | |
783 | int wild_name_count = 0; | |
784 | struct wildcard_list *sec; | |
785 | int signature; | |
786 | int data_counter; | |
787 | ||
788 | ptr->walk_wild_section_handler = walk_wild_section_general; | |
7544697a AM |
789 | ptr->handler_data[0] = NULL; |
790 | ptr->handler_data[1] = NULL; | |
791 | ptr->handler_data[2] = NULL; | |
792 | ptr->handler_data[3] = NULL; | |
e6f2cbf5 | 793 | ptr->tree = NULL; |
72223188 JJ |
794 | |
795 | /* Count how many wildcard_specs there are, and how many of those | |
796 | actually use wildcards in the name. Also, bail out if any of the | |
797 | wildcard names are NULL. (Can this actually happen? | |
798 | walk_wild_section used to test for it.) And bail out if any | |
799 | of the wildcards are more complex than a simple string | |
800 | ending in a single '*'. */ | |
801 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
802 | { | |
803 | ++sec_count; | |
804 | if (sec->spec.name == NULL) | |
805 | return; | |
806 | if (wildcardp (sec->spec.name)) | |
807 | { | |
808 | ++wild_name_count; | |
809 | if (!is_simple_wild (sec->spec.name)) | |
810 | return; | |
811 | } | |
812 | } | |
813 | ||
814 | /* The zero-spec case would be easy to optimize but it doesn't | |
815 | happen in practice. Likewise, more than 4 specs doesn't | |
816 | happen in practice. */ | |
817 | if (sec_count == 0 || sec_count > 4) | |
818 | return; | |
819 | ||
820 | /* Check that no two specs can match the same section. */ | |
821 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
822 | { | |
823 | struct wildcard_list *sec2; | |
824 | for (sec2 = sec->next; sec2 != NULL; sec2 = sec2->next) | |
825 | { | |
826 | if (wild_spec_can_overlap (sec->spec.name, sec2->spec.name)) | |
827 | return; | |
828 | } | |
829 | } | |
830 | ||
831 | signature = (sec_count << 8) + wild_name_count; | |
832 | switch (signature) | |
833 | { | |
834 | case 0x0100: | |
835 | ptr->walk_wild_section_handler = walk_wild_section_specs1_wild0; | |
836 | break; | |
837 | case 0x0101: | |
838 | ptr->walk_wild_section_handler = walk_wild_section_specs1_wild1; | |
839 | break; | |
840 | case 0x0201: | |
841 | ptr->walk_wild_section_handler = walk_wild_section_specs2_wild1; | |
842 | break; | |
843 | case 0x0302: | |
844 | ptr->walk_wild_section_handler = walk_wild_section_specs3_wild2; | |
845 | break; | |
846 | case 0x0402: | |
847 | ptr->walk_wild_section_handler = walk_wild_section_specs4_wild2; | |
848 | break; | |
849 | default: | |
850 | return; | |
851 | } | |
852 | ||
853 | /* Now fill the data array with pointers to the specs, first the | |
854 | specs with non-wildcard names, then the specs with wildcard | |
855 | names. It's OK to process the specs in different order from the | |
856 | given order, because we've already determined that no section | |
857 | will match more than one spec. */ | |
858 | data_counter = 0; | |
859 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
860 | if (!wildcardp (sec->spec.name)) | |
861 | ptr->handler_data[data_counter++] = sec; | |
862 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
863 | if (wildcardp (sec->spec.name)) | |
864 | ptr->handler_data[data_counter++] = sec; | |
865 | } | |
866 | ||
4dec4d4e RH |
867 | /* Handle a wild statement for a single file F. */ |
868 | ||
869 | static void | |
1579bae1 AM |
870 | walk_wild_file (lang_wild_statement_type *s, |
871 | lang_input_statement_type *f, | |
872 | callback_t callback, | |
873 | void *data) | |
4dec4d4e | 874 | { |
8f1732fc AB |
875 | if (walk_wild_file_in_exclude_list (s->exclude_name_list, f)) |
876 | return; | |
877 | ||
4dec4d4e | 878 | if (f->the_bfd == NULL |
0aa7f586 | 879 | || !bfd_check_format (f->the_bfd, bfd_archive)) |
b6bf44ba | 880 | walk_wild_section (s, f, callback, data); |
4dec4d4e RH |
881 | else |
882 | { | |
883 | bfd *member; | |
884 | ||
885 | /* This is an archive file. We must map each member of the | |
886 | archive separately. */ | |
1579bae1 | 887 | member = bfd_openr_next_archived_file (f->the_bfd, NULL); |
4dec4d4e RH |
888 | while (member != NULL) |
889 | { | |
890 | /* When lookup_name is called, it will call the add_symbols | |
891 | entry point for the archive. For each element of the | |
892 | archive which is included, BFD will call ldlang_add_file, | |
893 | which will set the usrdata field of the member to the | |
894 | lang_input_statement. */ | |
895 | if (member->usrdata != NULL) | |
896 | { | |
1e9cc1c2 | 897 | walk_wild_section (s, |
4724d37e RM |
898 | (lang_input_statement_type *) member->usrdata, |
899 | callback, data); | |
4dec4d4e RH |
900 | } |
901 | ||
902 | member = bfd_openr_next_archived_file (f->the_bfd, member); | |
903 | } | |
904 | } | |
905 | } | |
906 | ||
907 | static void | |
1579bae1 | 908 | walk_wild (lang_wild_statement_type *s, callback_t callback, void *data) |
4dec4d4e | 909 | { |
b6bf44ba | 910 | const char *file_spec = s->filename; |
97407faf | 911 | char *p; |
b6bf44ba AM |
912 | |
913 | if (file_spec == NULL) | |
4dec4d4e RH |
914 | { |
915 | /* Perform the iteration over all files in the list. */ | |
e50d8076 | 916 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 917 | { |
b6bf44ba | 918 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
919 | } |
920 | } | |
97407faf AM |
921 | else if ((p = archive_path (file_spec)) != NULL) |
922 | { | |
923 | LANG_FOR_EACH_INPUT_STATEMENT (f) | |
924 | { | |
967928e9 AM |
925 | if (input_statement_is_archive_path (file_spec, p, f)) |
926 | walk_wild_file (s, f, callback, data); | |
97407faf AM |
927 | } |
928 | } | |
b6bf44ba | 929 | else if (wildcardp (file_spec)) |
4dec4d4e | 930 | { |
e50d8076 | 931 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 932 | { |
68bbb9f7 | 933 | if (fnmatch (file_spec, f->filename, 0) == 0) |
b6bf44ba | 934 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
935 | } |
936 | } | |
937 | else | |
938 | { | |
e50d8076 NC |
939 | lang_input_statement_type *f; |
940 | ||
4dec4d4e | 941 | /* Perform the iteration over a single file. */ |
b6bf44ba | 942 | f = lookup_name (file_spec); |
6770ec8c | 943 | if (f) |
b6bf44ba | 944 | walk_wild_file (s, f, callback, data); |
4dec4d4e | 945 | } |
5f992e62 AM |
946 | } |
947 | ||
08da4cac | 948 | /* lang_for_each_statement walks the parse tree and calls the provided |
8658f989 AM |
949 | function for each node, except those inside output section statements |
950 | with constraint set to -1. */ | |
252b5132 | 951 | |
8658f989 | 952 | void |
1579bae1 AM |
953 | lang_for_each_statement_worker (void (*func) (lang_statement_union_type *), |
954 | lang_statement_union_type *s) | |
252b5132 | 955 | { |
1579bae1 | 956 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
957 | { |
958 | func (s); | |
959 | ||
960 | switch (s->header.type) | |
961 | { | |
962 | case lang_constructors_statement_enum: | |
963 | lang_for_each_statement_worker (func, constructor_list.head); | |
964 | break; | |
965 | case lang_output_section_statement_enum: | |
8658f989 AM |
966 | if (s->output_section_statement.constraint != -1) |
967 | lang_for_each_statement_worker | |
968 | (func, s->output_section_statement.children.head); | |
252b5132 RH |
969 | break; |
970 | case lang_wild_statement_enum: | |
6feb9908 AM |
971 | lang_for_each_statement_worker (func, |
972 | s->wild_statement.children.head); | |
252b5132 RH |
973 | break; |
974 | case lang_group_statement_enum: | |
975 | lang_for_each_statement_worker (func, | |
976 | s->group_statement.children.head); | |
977 | break; | |
978 | case lang_data_statement_enum: | |
979 | case lang_reloc_statement_enum: | |
980 | case lang_object_symbols_statement_enum: | |
981 | case lang_output_statement_enum: | |
982 | case lang_target_statement_enum: | |
983 | case lang_input_section_enum: | |
984 | case lang_input_statement_enum: | |
985 | case lang_assignment_statement_enum: | |
986 | case lang_padding_statement_enum: | |
987 | case lang_address_statement_enum: | |
988 | case lang_fill_statement_enum: | |
53d25da6 | 989 | case lang_insert_statement_enum: |
252b5132 RH |
990 | break; |
991 | default: | |
992 | FAIL (); | |
993 | break; | |
994 | } | |
995 | } | |
996 | } | |
997 | ||
998 | void | |
1579bae1 | 999 | lang_for_each_statement (void (*func) (lang_statement_union_type *)) |
252b5132 | 1000 | { |
08da4cac | 1001 | lang_for_each_statement_worker (func, statement_list.head); |
252b5132 RH |
1002 | } |
1003 | ||
1004 | /*----------------------------------------------------------------------*/ | |
08da4cac | 1005 | |
252b5132 | 1006 | void |
1579bae1 | 1007 | lang_list_init (lang_statement_list_type *list) |
252b5132 | 1008 | { |
1579bae1 | 1009 | list->head = NULL; |
252b5132 RH |
1010 | list->tail = &list->head; |
1011 | } | |
1012 | ||
bde18da4 AM |
1013 | void |
1014 | push_stat_ptr (lang_statement_list_type *new_ptr) | |
1015 | { | |
1016 | if (stat_save_ptr >= stat_save + sizeof (stat_save) / sizeof (stat_save[0])) | |
1017 | abort (); | |
1018 | *stat_save_ptr++ = stat_ptr; | |
1019 | stat_ptr = new_ptr; | |
1020 | } | |
1021 | ||
1022 | void | |
1023 | pop_stat_ptr (void) | |
1024 | { | |
1025 | if (stat_save_ptr <= stat_save) | |
1026 | abort (); | |
1027 | stat_ptr = *--stat_save_ptr; | |
1028 | } | |
1029 | ||
08da4cac | 1030 | /* Build a new statement node for the parse tree. */ |
252b5132 | 1031 | |
08da4cac | 1032 | static lang_statement_union_type * |
1579bae1 AM |
1033 | new_statement (enum statement_enum type, |
1034 | size_t size, | |
1035 | lang_statement_list_type *list) | |
252b5132 | 1036 | { |
d3ce72d0 | 1037 | lang_statement_union_type *new_stmt; |
252b5132 | 1038 | |
d3ce72d0 NC |
1039 | new_stmt = (lang_statement_union_type *) stat_alloc (size); |
1040 | new_stmt->header.type = type; | |
1041 | new_stmt->header.next = NULL; | |
1042 | lang_statement_append (list, new_stmt, &new_stmt->header.next); | |
1043 | return new_stmt; | |
252b5132 RH |
1044 | } |
1045 | ||
08da4cac KH |
1046 | /* Build a new input file node for the language. There are several |
1047 | ways in which we treat an input file, eg, we only look at symbols, | |
1048 | or prefix it with a -l etc. | |
252b5132 | 1049 | |
08da4cac | 1050 | We can be supplied with requests for input files more than once; |
396a2467 | 1051 | they may, for example be split over several lines like foo.o(.text) |
d1778b88 | 1052 | foo.o(.data) etc, so when asked for a file we check that we haven't |
08da4cac | 1053 | got it already so we don't duplicate the bfd. */ |
252b5132 | 1054 | |
252b5132 | 1055 | static lang_input_statement_type * |
1579bae1 AM |
1056 | new_afile (const char *name, |
1057 | lang_input_file_enum_type file_type, | |
1058 | const char *target, | |
1059 | bfd_boolean add_to_list) | |
252b5132 RH |
1060 | { |
1061 | lang_input_statement_type *p; | |
1062 | ||
66be1055 AM |
1063 | lang_has_input_file = TRUE; |
1064 | ||
252b5132 | 1065 | if (add_to_list) |
d3ce72d0 | 1066 | p = (lang_input_statement_type *) new_stat (lang_input_statement, stat_ptr); |
252b5132 RH |
1067 | else |
1068 | { | |
d3ce72d0 | 1069 | p = (lang_input_statement_type *) |
4724d37e | 1070 | stat_alloc (sizeof (lang_input_statement_type)); |
bd4d42c1 | 1071 | p->header.type = lang_input_statement_enum; |
252b5132 RH |
1072 | p->header.next = NULL; |
1073 | } | |
1074 | ||
66be1055 AM |
1075 | memset (&p->the_bfd, 0, |
1076 | sizeof (*p) - offsetof (lang_input_statement_type, the_bfd)); | |
252b5132 | 1077 | p->target = target; |
66be1055 AM |
1078 | p->flags.dynamic = input_flags.dynamic; |
1079 | p->flags.add_DT_NEEDED_for_dynamic = input_flags.add_DT_NEEDED_for_dynamic; | |
1080 | p->flags.add_DT_NEEDED_for_regular = input_flags.add_DT_NEEDED_for_regular; | |
1081 | p->flags.whole_archive = input_flags.whole_archive; | |
f4a23d42 | 1082 | p->flags.sysrooted = input_flags.sysrooted; |
bcb674cf | 1083 | |
252b5132 RH |
1084 | switch (file_type) |
1085 | { | |
1086 | case lang_input_file_is_symbols_only_enum: | |
1087 | p->filename = name; | |
252b5132 | 1088 | p->local_sym_name = name; |
66be1055 AM |
1089 | p->flags.real = TRUE; |
1090 | p->flags.just_syms = TRUE; | |
252b5132 RH |
1091 | break; |
1092 | case lang_input_file_is_fake_enum: | |
1093 | p->filename = name; | |
252b5132 | 1094 | p->local_sym_name = name; |
252b5132 RH |
1095 | break; |
1096 | case lang_input_file_is_l_enum: | |
d4ae5fb0 | 1097 | if (name[0] == ':' && name[1] != '\0') |
0aa7f586 AM |
1098 | { |
1099 | p->filename = name + 1; | |
1100 | p->flags.full_name_provided = TRUE; | |
1101 | } | |
d4ae5fb0 | 1102 | else |
0aa7f586 | 1103 | p->filename = name; |
ff7a0acf | 1104 | p->local_sym_name = concat ("-l", name, (const char *) NULL); |
66be1055 AM |
1105 | p->flags.maybe_archive = TRUE; |
1106 | p->flags.real = TRUE; | |
1107 | p->flags.search_dirs = TRUE; | |
252b5132 RH |
1108 | break; |
1109 | case lang_input_file_is_marker_enum: | |
1110 | p->filename = name; | |
252b5132 | 1111 | p->local_sym_name = name; |
66be1055 | 1112 | p->flags.search_dirs = TRUE; |
252b5132 RH |
1113 | break; |
1114 | case lang_input_file_is_search_file_enum: | |
1115 | p->filename = name; | |
252b5132 | 1116 | p->local_sym_name = name; |
66be1055 AM |
1117 | p->flags.real = TRUE; |
1118 | p->flags.search_dirs = TRUE; | |
252b5132 RH |
1119 | break; |
1120 | case lang_input_file_is_file_enum: | |
1121 | p->filename = name; | |
252b5132 | 1122 | p->local_sym_name = name; |
66be1055 | 1123 | p->flags.real = TRUE; |
252b5132 RH |
1124 | break; |
1125 | default: | |
1126 | FAIL (); | |
1127 | } | |
c4b78195 | 1128 | |
252b5132 RH |
1129 | lang_statement_append (&input_file_chain, |
1130 | (lang_statement_union_type *) p, | |
1131 | &p->next_real_file); | |
1132 | return p; | |
1133 | } | |
1134 | ||
1135 | lang_input_statement_type * | |
1579bae1 AM |
1136 | lang_add_input_file (const char *name, |
1137 | lang_input_file_enum_type file_type, | |
1138 | const char *target) | |
252b5132 | 1139 | { |
3aa2d05a NC |
1140 | if (name != NULL |
1141 | && (*name == '=' || CONST_STRNEQ (name, "$SYSROOT"))) | |
bfa23434 HPN |
1142 | { |
1143 | lang_input_statement_type *ret; | |
1144 | char *sysrooted_name | |
3aa2d05a NC |
1145 | = concat (ld_sysroot, |
1146 | name + (*name == '=' ? 1 : strlen ("$SYSROOT")), | |
1147 | (const char *) NULL); | |
bfa23434 HPN |
1148 | |
1149 | /* We've now forcibly prepended the sysroot, making the input | |
1150 | file independent of the context. Therefore, temporarily | |
1151 | force a non-sysrooted context for this statement, so it won't | |
1152 | get the sysroot prepended again when opened. (N.B. if it's a | |
1153 | script, any child nodes with input files starting with "/" | |
1154 | will be handled as "sysrooted" as they'll be found to be | |
1155 | within the sysroot subdirectory.) */ | |
1156 | unsigned int outer_sysrooted = input_flags.sysrooted; | |
1157 | input_flags.sysrooted = 0; | |
1158 | ret = new_afile (sysrooted_name, file_type, target, TRUE); | |
1159 | input_flags.sysrooted = outer_sysrooted; | |
1160 | return ret; | |
1161 | } | |
1162 | ||
b34976b6 | 1163 | return new_afile (name, file_type, target, TRUE); |
252b5132 RH |
1164 | } |
1165 | ||
409d7240 | 1166 | struct out_section_hash_entry |
750877ba L |
1167 | { |
1168 | struct bfd_hash_entry root; | |
409d7240 | 1169 | lang_statement_union_type s; |
750877ba L |
1170 | }; |
1171 | ||
1172 | /* The hash table. */ | |
1173 | ||
409d7240 | 1174 | static struct bfd_hash_table output_section_statement_table; |
750877ba | 1175 | |
384a9dda | 1176 | /* Support routines for the hash table used by lang_output_section_find, |
750877ba L |
1177 | initialize the table, fill in an entry and remove the table. */ |
1178 | ||
1179 | static struct bfd_hash_entry * | |
329c1c86 | 1180 | output_section_statement_newfunc (struct bfd_hash_entry *entry, |
409d7240 AM |
1181 | struct bfd_hash_table *table, |
1182 | const char *string) | |
750877ba | 1183 | { |
384a9dda | 1184 | lang_output_section_statement_type **nextp; |
409d7240 | 1185 | struct out_section_hash_entry *ret; |
384a9dda AM |
1186 | |
1187 | if (entry == NULL) | |
1188 | { | |
1e9cc1c2 | 1189 | entry = (struct bfd_hash_entry *) bfd_hash_allocate (table, |
4724d37e | 1190 | sizeof (*ret)); |
384a9dda AM |
1191 | if (entry == NULL) |
1192 | return entry; | |
1193 | } | |
1194 | ||
1195 | entry = bfd_hash_newfunc (entry, table, string); | |
1196 | if (entry == NULL) | |
1197 | return entry; | |
1198 | ||
409d7240 AM |
1199 | ret = (struct out_section_hash_entry *) entry; |
1200 | memset (&ret->s, 0, sizeof (ret->s)); | |
1201 | ret->s.header.type = lang_output_section_statement_enum; | |
1202 | ret->s.output_section_statement.subsection_alignment = -1; | |
1203 | ret->s.output_section_statement.section_alignment = -1; | |
1204 | ret->s.output_section_statement.block_value = 1; | |
1205 | lang_list_init (&ret->s.output_section_statement.children); | |
1206 | lang_statement_append (stat_ptr, &ret->s, &ret->s.header.next); | |
384a9dda | 1207 | |
218868ba AM |
1208 | /* For every output section statement added to the list, except the |
1209 | first one, lang_output_section_statement.tail points to the "next" | |
1210 | field of the last element of the list. */ | |
1211 | if (lang_output_section_statement.head != NULL) | |
409d7240 AM |
1212 | ret->s.output_section_statement.prev |
1213 | = ((lang_output_section_statement_type *) | |
1214 | ((char *) lang_output_section_statement.tail | |
1215 | - offsetof (lang_output_section_statement_type, next))); | |
218868ba | 1216 | |
384a9dda AM |
1217 | /* GCC's strict aliasing rules prevent us from just casting the |
1218 | address, so we store the pointer in a variable and cast that | |
1219 | instead. */ | |
409d7240 | 1220 | nextp = &ret->s.output_section_statement.next; |
384a9dda | 1221 | lang_statement_append (&lang_output_section_statement, |
409d7240 | 1222 | &ret->s, |
384a9dda AM |
1223 | (lang_statement_union_type **) nextp); |
1224 | return &ret->root; | |
750877ba L |
1225 | } |
1226 | ||
1227 | static void | |
409d7240 | 1228 | output_section_statement_table_init (void) |
750877ba | 1229 | { |
409d7240 AM |
1230 | if (!bfd_hash_table_init_n (&output_section_statement_table, |
1231 | output_section_statement_newfunc, | |
1232 | sizeof (struct out_section_hash_entry), | |
66eb6687 | 1233 | 61)) |
df5f2391 | 1234 | einfo (_("%F%P: can not create hash table: %E\n")); |
750877ba L |
1235 | } |
1236 | ||
1237 | static void | |
409d7240 | 1238 | output_section_statement_table_free (void) |
750877ba | 1239 | { |
409d7240 | 1240 | bfd_hash_table_free (&output_section_statement_table); |
750877ba L |
1241 | } |
1242 | ||
08da4cac KH |
1243 | /* Build enough state so that the parser can build its tree. */ |
1244 | ||
252b5132 | 1245 | void |
1579bae1 | 1246 | lang_init (void) |
252b5132 RH |
1247 | { |
1248 | obstack_begin (&stat_obstack, 1000); | |
1249 | ||
1250 | stat_ptr = &statement_list; | |
1251 | ||
409d7240 | 1252 | output_section_statement_table_init (); |
750877ba | 1253 | |
252b5132 RH |
1254 | lang_list_init (stat_ptr); |
1255 | ||
1256 | lang_list_init (&input_file_chain); | |
1257 | lang_list_init (&lang_output_section_statement); | |
1258 | lang_list_init (&file_chain); | |
1579bae1 AM |
1259 | first_file = lang_add_input_file (NULL, lang_input_file_is_marker_enum, |
1260 | NULL); | |
08da4cac | 1261 | abs_output_section = |
66c103b7 | 1262 | lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME, 0, TRUE); |
252b5132 RH |
1263 | |
1264 | abs_output_section->bfd_section = bfd_abs_section_ptr; | |
420e579c | 1265 | |
16e4ecc0 AM |
1266 | asneeded_list_head = NULL; |
1267 | asneeded_list_tail = &asneeded_list_head; | |
252b5132 RH |
1268 | } |
1269 | ||
750877ba L |
1270 | void |
1271 | lang_finish (void) | |
1272 | { | |
409d7240 | 1273 | output_section_statement_table_free (); |
750877ba L |
1274 | } |
1275 | ||
252b5132 | 1276 | /*---------------------------------------------------------------------- |
08da4cac KH |
1277 | A region is an area of memory declared with the |
1278 | MEMORY { name:org=exp, len=exp ... } | |
1279 | syntax. | |
252b5132 | 1280 | |
08da4cac | 1281 | We maintain a list of all the regions here. |
252b5132 | 1282 | |
08da4cac | 1283 | If no regions are specified in the script, then the default is used |
a747ee4d NC |
1284 | which is created when looked up to be the entire data space. |
1285 | ||
1286 | If create is true we are creating a region inside a MEMORY block. | |
1287 | In this case it is probably an error to create a region that has | |
1288 | already been created. If we are not inside a MEMORY block it is | |
1289 | dubious to use an undeclared region name (except DEFAULT_MEMORY_REGION) | |
4a93e180 | 1290 | and so we issue a warning. |
1e0061d2 | 1291 | |
4a93e180 NC |
1292 | Each region has at least one name. The first name is either |
1293 | DEFAULT_MEMORY_REGION or the name given in the MEMORY block. You can add | |
1294 | alias names to an existing region within a script with | |
1295 | REGION_ALIAS (alias, region_name). Each name corresponds to at most one | |
1296 | region. */ | |
252b5132 RH |
1297 | |
1298 | static lang_memory_region_type *lang_memory_region_list; | |
6feb9908 AM |
1299 | static lang_memory_region_type **lang_memory_region_list_tail |
1300 | = &lang_memory_region_list; | |
252b5132 RH |
1301 | |
1302 | lang_memory_region_type * | |
a747ee4d | 1303 | lang_memory_region_lookup (const char *const name, bfd_boolean create) |
252b5132 | 1304 | { |
4a93e180 NC |
1305 | lang_memory_region_name *n; |
1306 | lang_memory_region_type *r; | |
d3ce72d0 | 1307 | lang_memory_region_type *new_region; |
252b5132 | 1308 | |
9f88b410 RS |
1309 | /* NAME is NULL for LMA memspecs if no region was specified. */ |
1310 | if (name == NULL) | |
1311 | return NULL; | |
1312 | ||
4a93e180 NC |
1313 | for (r = lang_memory_region_list; r != NULL; r = r->next) |
1314 | for (n = &r->name_list; n != NULL; n = n->next) | |
1315 | if (strcmp (n->name, name) == 0) | |
4724d37e RM |
1316 | { |
1317 | if (create) | |
c1c8c1ef | 1318 | einfo (_("%P:%pS: warning: redeclaration of memory region `%s'\n"), |
4724d37e RM |
1319 | NULL, name); |
1320 | return r; | |
1321 | } | |
252b5132 | 1322 | |
a747ee4d | 1323 | if (!create && strcmp (name, DEFAULT_MEMORY_REGION)) |
c1c8c1ef | 1324 | einfo (_("%P:%pS: warning: memory region `%s' not declared\n"), |
dab69f68 | 1325 | NULL, name); |
a747ee4d | 1326 | |
d3ce72d0 NC |
1327 | new_region = (lang_memory_region_type *) |
1328 | stat_alloc (sizeof (lang_memory_region_type)); | |
252b5132 | 1329 | |
d3ce72d0 NC |
1330 | new_region->name_list.name = xstrdup (name); |
1331 | new_region->name_list.next = NULL; | |
1332 | new_region->next = NULL; | |
cc9ad334 | 1333 | new_region->origin_exp = NULL; |
d3ce72d0 | 1334 | new_region->origin = 0; |
cc9ad334 | 1335 | new_region->length_exp = NULL; |
d3ce72d0 NC |
1336 | new_region->length = ~(bfd_size_type) 0; |
1337 | new_region->current = 0; | |
1338 | new_region->last_os = NULL; | |
1339 | new_region->flags = 0; | |
1340 | new_region->not_flags = 0; | |
1341 | new_region->had_full_message = FALSE; | |
252b5132 | 1342 | |
d3ce72d0 NC |
1343 | *lang_memory_region_list_tail = new_region; |
1344 | lang_memory_region_list_tail = &new_region->next; | |
66e28d60 | 1345 | |
d3ce72d0 | 1346 | return new_region; |
252b5132 RH |
1347 | } |
1348 | ||
4a93e180 | 1349 | void |
0aa7f586 | 1350 | lang_memory_region_alias (const char *alias, const char *region_name) |
4a93e180 | 1351 | { |
0aa7f586 AM |
1352 | lang_memory_region_name *n; |
1353 | lang_memory_region_type *r; | |
1354 | lang_memory_region_type *region; | |
4a93e180 NC |
1355 | |
1356 | /* The default region must be unique. This ensures that it is not necessary | |
1357 | to iterate through the name list if someone wants the check if a region is | |
1358 | the default memory region. */ | |
1359 | if (strcmp (region_name, DEFAULT_MEMORY_REGION) == 0 | |
1360 | || strcmp (alias, DEFAULT_MEMORY_REGION) == 0) | |
c1c8c1ef | 1361 | einfo (_("%F%P:%pS: error: alias for default memory region\n"), NULL); |
4a93e180 NC |
1362 | |
1363 | /* Look for the target region and check if the alias is not already | |
1364 | in use. */ | |
1365 | region = NULL; | |
1366 | for (r = lang_memory_region_list; r != NULL; r = r->next) | |
1367 | for (n = &r->name_list; n != NULL; n = n->next) | |
1368 | { | |
4724d37e RM |
1369 | if (region == NULL && strcmp (n->name, region_name) == 0) |
1370 | region = r; | |
1371 | if (strcmp (n->name, alias) == 0) | |
c1c8c1ef | 1372 | einfo (_("%F%P:%pS: error: redefinition of memory region " |
4724d37e RM |
1373 | "alias `%s'\n"), |
1374 | NULL, alias); | |
4a93e180 NC |
1375 | } |
1376 | ||
1377 | /* Check if the target region exists. */ | |
1378 | if (region == NULL) | |
c1c8c1ef | 1379 | einfo (_("%F%P:%pS: error: memory region `%s' " |
4724d37e RM |
1380 | "for alias `%s' does not exist\n"), |
1381 | NULL, region_name, alias); | |
4a93e180 NC |
1382 | |
1383 | /* Add alias to region name list. */ | |
1e9cc1c2 | 1384 | n = (lang_memory_region_name *) stat_alloc (sizeof (lang_memory_region_name)); |
4a93e180 NC |
1385 | n->name = xstrdup (alias); |
1386 | n->next = region->name_list.next; | |
1387 | region->name_list.next = n; | |
1388 | } | |
1389 | ||
5f992e62 | 1390 | static lang_memory_region_type * |
0aa7f586 | 1391 | lang_memory_default (asection *section) |
252b5132 RH |
1392 | { |
1393 | lang_memory_region_type *p; | |
1394 | ||
1395 | flagword sec_flags = section->flags; | |
1396 | ||
1397 | /* Override SEC_DATA to mean a writable section. */ | |
1398 | if ((sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE)) == SEC_ALLOC) | |
1399 | sec_flags |= SEC_DATA; | |
1400 | ||
1579bae1 | 1401 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
252b5132 RH |
1402 | { |
1403 | if ((p->flags & sec_flags) != 0 | |
1404 | && (p->not_flags & sec_flags) == 0) | |
1405 | { | |
1406 | return p; | |
1407 | } | |
1408 | } | |
a747ee4d | 1409 | return lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE); |
252b5132 RH |
1410 | } |
1411 | ||
24ef1aa7 GM |
1412 | /* Get the output section statement directly from the userdata. */ |
1413 | ||
1414 | lang_output_section_statement_type * | |
1415 | lang_output_section_get (const asection *output_section) | |
1416 | { | |
1417 | return get_userdata (output_section); | |
1418 | } | |
1419 | ||
d127ecce AM |
1420 | /* Find or create an output_section_statement with the given NAME. |
1421 | If CONSTRAINT is non-zero match one with that constraint, otherwise | |
1422 | match any non-negative constraint. If CREATE, always make a | |
1423 | new output_section_statement for SPECIAL CONSTRAINT. */ | |
1424 | ||
384a9dda | 1425 | lang_output_section_statement_type * |
d127ecce | 1426 | lang_output_section_statement_lookup (const char *name, |
66c103b7 AM |
1427 | int constraint, |
1428 | bfd_boolean create) | |
252b5132 | 1429 | { |
409d7240 | 1430 | struct out_section_hash_entry *entry; |
252b5132 | 1431 | |
409d7240 AM |
1432 | entry = ((struct out_section_hash_entry *) |
1433 | bfd_hash_lookup (&output_section_statement_table, name, | |
66c103b7 | 1434 | create, FALSE)); |
384a9dda AM |
1435 | if (entry == NULL) |
1436 | { | |
66c103b7 | 1437 | if (create) |
df5f2391 | 1438 | einfo (_("%F%P: failed creating section `%s': %E\n"), name); |
384a9dda AM |
1439 | return NULL; |
1440 | } | |
252b5132 | 1441 | |
409d7240 | 1442 | if (entry->s.output_section_statement.name != NULL) |
252b5132 | 1443 | { |
384a9dda AM |
1444 | /* We have a section of this name, but it might not have the correct |
1445 | constraint. */ | |
66c103b7 | 1446 | struct out_section_hash_entry *last_ent; |
66c103b7 | 1447 | |
d127ecce | 1448 | name = entry->s.output_section_statement.name; |
8a99a385 AM |
1449 | if (create && constraint == SPECIAL) |
1450 | /* Not traversing to the end reverses the order of the second | |
1451 | and subsequent SPECIAL sections in the hash table chain, | |
1452 | but that shouldn't matter. */ | |
1453 | last_ent = entry; | |
1454 | else | |
1455 | do | |
1456 | { | |
d127ecce AM |
1457 | if (constraint == entry->s.output_section_statement.constraint |
1458 | || (constraint == 0 | |
1459 | && entry->s.output_section_statement.constraint >= 0)) | |
8a99a385 AM |
1460 | return &entry->s.output_section_statement; |
1461 | last_ent = entry; | |
1462 | entry = (struct out_section_hash_entry *) entry->root.next; | |
1463 | } | |
1464 | while (entry != NULL | |
d127ecce | 1465 | && name == entry->s.output_section_statement.name); |
252b5132 | 1466 | |
66c103b7 AM |
1467 | if (!create) |
1468 | return NULL; | |
1469 | ||
409d7240 AM |
1470 | entry |
1471 | = ((struct out_section_hash_entry *) | |
1472 | output_section_statement_newfunc (NULL, | |
1473 | &output_section_statement_table, | |
1474 | name)); | |
750877ba | 1475 | if (entry == NULL) |
384a9dda | 1476 | { |
df5f2391 | 1477 | einfo (_("%F%P: failed creating section `%s': %E\n"), name); |
384a9dda AM |
1478 | return NULL; |
1479 | } | |
1480 | entry->root = last_ent->root; | |
1481 | last_ent->root.next = &entry->root; | |
252b5132 | 1482 | } |
384a9dda | 1483 | |
409d7240 AM |
1484 | entry->s.output_section_statement.name = name; |
1485 | entry->s.output_section_statement.constraint = constraint; | |
1486 | return &entry->s.output_section_statement; | |
252b5132 RH |
1487 | } |
1488 | ||
d127ecce AM |
1489 | /* Find the next output_section_statement with the same name as OS. |
1490 | If CONSTRAINT is non-zero, find one with that constraint otherwise | |
1491 | match any non-negative constraint. */ | |
1492 | ||
1493 | lang_output_section_statement_type * | |
1494 | next_matching_output_section_statement (lang_output_section_statement_type *os, | |
1495 | int constraint) | |
1496 | { | |
1497 | /* All output_section_statements are actually part of a | |
1498 | struct out_section_hash_entry. */ | |
1499 | struct out_section_hash_entry *entry = (struct out_section_hash_entry *) | |
1500 | ((char *) os | |
1501 | - offsetof (struct out_section_hash_entry, s.output_section_statement)); | |
1502 | const char *name = os->name; | |
1503 | ||
1504 | ASSERT (name == entry->root.string); | |
1505 | do | |
1506 | { | |
1507 | entry = (struct out_section_hash_entry *) entry->root.next; | |
1508 | if (entry == NULL | |
1509 | || name != entry->s.output_section_statement.name) | |
1510 | return NULL; | |
1511 | } | |
1512 | while (constraint != entry->s.output_section_statement.constraint | |
1513 | && (constraint != 0 | |
1514 | || entry->s.output_section_statement.constraint < 0)); | |
1515 | ||
1516 | return &entry->s.output_section_statement; | |
1517 | } | |
1518 | ||
afd7a018 AM |
1519 | /* A variant of lang_output_section_find used by place_orphan. |
1520 | Returns the output statement that should precede a new output | |
1521 | statement for SEC. If an exact match is found on certain flags, | |
1522 | sets *EXACT too. */ | |
1523 | ||
1524 | lang_output_section_statement_type * | |
1525 | lang_output_section_find_by_flags (const asection *sec, | |
93638471 | 1526 | flagword sec_flags, |
390fbbf1 AM |
1527 | lang_output_section_statement_type **exact, |
1528 | lang_match_sec_type_func match_type) | |
afd7a018 AM |
1529 | { |
1530 | lang_output_section_statement_type *first, *look, *found; | |
93638471 | 1531 | flagword look_flags, differ; |
afd7a018 AM |
1532 | |
1533 | /* We know the first statement on this list is *ABS*. May as well | |
1534 | skip it. */ | |
1535 | first = &lang_output_section_statement.head->output_section_statement; | |
1536 | first = first->next; | |
1537 | ||
1538 | /* First try for an exact match. */ | |
1539 | found = NULL; | |
1540 | for (look = first; look; look = look->next) | |
1541 | { | |
d9d94ac8 | 1542 | look_flags = look->flags; |
afd7a018 | 1543 | if (look->bfd_section != NULL) |
ecca9871 | 1544 | { |
d9d94ac8 | 1545 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1546 | if (match_type && !match_type (link_info.output_bfd, |
1547 | look->bfd_section, | |
390fbbf1 | 1548 | sec->owner, sec)) |
ecca9871 L |
1549 | continue; |
1550 | } | |
d9d94ac8 AM |
1551 | differ = look_flags ^ sec_flags; |
1552 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
1553 | | SEC_CODE | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
afd7a018 AM |
1554 | found = look; |
1555 | } | |
1556 | if (found != NULL) | |
1557 | { | |
390fbbf1 AM |
1558 | if (exact != NULL) |
1559 | *exact = found; | |
afd7a018 AM |
1560 | return found; |
1561 | } | |
1562 | ||
d9d94ac8 AM |
1563 | if ((sec_flags & SEC_CODE) != 0 |
1564 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1565 | { |
1566 | /* Try for a rw code section. */ | |
1567 | for (look = first; look; look = look->next) | |
1568 | { | |
d9d94ac8 | 1569 | look_flags = look->flags; |
afd7a018 | 1570 | if (look->bfd_section != NULL) |
ecca9871 | 1571 | { |
d9d94ac8 | 1572 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1573 | if (match_type && !match_type (link_info.output_bfd, |
1574 | look->bfd_section, | |
390fbbf1 | 1575 | sec->owner, sec)) |
ecca9871 L |
1576 | continue; |
1577 | } | |
d9d94ac8 AM |
1578 | differ = look_flags ^ sec_flags; |
1579 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1580 | | SEC_CODE | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
afd7a018 AM |
1581 | found = look; |
1582 | } | |
afd7a018 | 1583 | } |
d9d94ac8 AM |
1584 | else if ((sec_flags & SEC_READONLY) != 0 |
1585 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1586 | { |
1587 | /* .rodata can go after .text, .sdata2 after .rodata. */ | |
1588 | for (look = first; look; look = look->next) | |
1589 | { | |
d9d94ac8 | 1590 | look_flags = look->flags; |
afd7a018 | 1591 | if (look->bfd_section != NULL) |
ecca9871 | 1592 | { |
d9d94ac8 | 1593 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1594 | if (match_type && !match_type (link_info.output_bfd, |
1595 | look->bfd_section, | |
390fbbf1 | 1596 | sec->owner, sec)) |
ecca9871 L |
1597 | continue; |
1598 | } | |
d9d94ac8 AM |
1599 | differ = look_flags ^ sec_flags; |
1600 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1601 | | SEC_READONLY | SEC_SMALL_DATA)) | |
1602 | || (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1603 | | SEC_READONLY)) | |
1604 | && !(look_flags & SEC_SMALL_DATA))) | |
afd7a018 AM |
1605 | found = look; |
1606 | } | |
afd7a018 | 1607 | } |
d9d94ac8 AM |
1608 | else if ((sec_flags & SEC_THREAD_LOCAL) != 0 |
1609 | && (sec_flags & SEC_ALLOC) != 0) | |
1610 | { | |
1611 | /* .tdata can go after .data, .tbss after .tdata. Treat .tbss | |
1612 | as if it were a loaded section, and don't use match_type. */ | |
1613 | bfd_boolean seen_thread_local = FALSE; | |
1614 | ||
1615 | match_type = NULL; | |
1616 | for (look = first; look; look = look->next) | |
1617 | { | |
1618 | look_flags = look->flags; | |
1619 | if (look->bfd_section != NULL) | |
1620 | look_flags = look->bfd_section->flags; | |
1621 | ||
1622 | differ = look_flags ^ (sec_flags | SEC_LOAD | SEC_HAS_CONTENTS); | |
1623 | if (!(differ & (SEC_THREAD_LOCAL | SEC_ALLOC))) | |
1624 | { | |
1625 | /* .tdata and .tbss must be adjacent and in that order. */ | |
1626 | if (!(look_flags & SEC_LOAD) | |
1627 | && (sec_flags & SEC_LOAD)) | |
1628 | /* ..so if we're at a .tbss section and we're placing | |
1629 | a .tdata section stop looking and return the | |
1630 | previous section. */ | |
1631 | break; | |
1632 | found = look; | |
1633 | seen_thread_local = TRUE; | |
1634 | } | |
1635 | else if (seen_thread_local) | |
1636 | break; | |
1637 | else if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD))) | |
1638 | found = look; | |
1639 | } | |
1640 | } | |
1641 | else if ((sec_flags & SEC_SMALL_DATA) != 0 | |
1642 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1643 | { |
1644 | /* .sdata goes after .data, .sbss after .sdata. */ | |
1645 | for (look = first; look; look = look->next) | |
1646 | { | |
d9d94ac8 | 1647 | look_flags = look->flags; |
afd7a018 | 1648 | if (look->bfd_section != NULL) |
ecca9871 | 1649 | { |
d9d94ac8 | 1650 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1651 | if (match_type && !match_type (link_info.output_bfd, |
1652 | look->bfd_section, | |
390fbbf1 | 1653 | sec->owner, sec)) |
ecca9871 L |
1654 | continue; |
1655 | } | |
d9d94ac8 AM |
1656 | differ = look_flags ^ sec_flags; |
1657 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1658 | | SEC_THREAD_LOCAL)) | |
1659 | || ((look_flags & SEC_SMALL_DATA) | |
1660 | && !(sec_flags & SEC_HAS_CONTENTS))) | |
afd7a018 AM |
1661 | found = look; |
1662 | } | |
afd7a018 | 1663 | } |
d9d94ac8 AM |
1664 | else if ((sec_flags & SEC_HAS_CONTENTS) != 0 |
1665 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1666 | { |
1667 | /* .data goes after .rodata. */ | |
1668 | for (look = first; look; look = look->next) | |
1669 | { | |
d9d94ac8 | 1670 | look_flags = look->flags; |
afd7a018 | 1671 | if (look->bfd_section != NULL) |
ecca9871 | 1672 | { |
d9d94ac8 | 1673 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1674 | if (match_type && !match_type (link_info.output_bfd, |
1675 | look->bfd_section, | |
390fbbf1 | 1676 | sec->owner, sec)) |
ecca9871 L |
1677 | continue; |
1678 | } | |
d9d94ac8 AM |
1679 | differ = look_flags ^ sec_flags; |
1680 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1681 | | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
afd7a018 AM |
1682 | found = look; |
1683 | } | |
afd7a018 | 1684 | } |
d9d94ac8 | 1685 | else if ((sec_flags & SEC_ALLOC) != 0) |
afd7a018 | 1686 | { |
07890c07 | 1687 | /* .bss goes after any other alloc section. */ |
390fbbf1 | 1688 | for (look = first; look; look = look->next) |
ecca9871 | 1689 | { |
d9d94ac8 | 1690 | look_flags = look->flags; |
390fbbf1 AM |
1691 | if (look->bfd_section != NULL) |
1692 | { | |
d9d94ac8 | 1693 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1694 | if (match_type && !match_type (link_info.output_bfd, |
1695 | look->bfd_section, | |
390fbbf1 AM |
1696 | sec->owner, sec)) |
1697 | continue; | |
1698 | } | |
d9d94ac8 AM |
1699 | differ = look_flags ^ sec_flags; |
1700 | if (!(differ & SEC_ALLOC)) | |
390fbbf1 | 1701 | found = look; |
ecca9871 | 1702 | } |
afd7a018 | 1703 | } |
07890c07 AM |
1704 | else |
1705 | { | |
1706 | /* non-alloc go last. */ | |
1707 | for (look = first; look; look = look->next) | |
1708 | { | |
d9d94ac8 | 1709 | look_flags = look->flags; |
07890c07 | 1710 | if (look->bfd_section != NULL) |
d9d94ac8 AM |
1711 | look_flags = look->bfd_section->flags; |
1712 | differ = look_flags ^ sec_flags; | |
1713 | if (!(differ & SEC_DEBUGGING)) | |
07890c07 AM |
1714 | found = look; |
1715 | } | |
1716 | return found; | |
1717 | } | |
afd7a018 | 1718 | |
390fbbf1 AM |
1719 | if (found || !match_type) |
1720 | return found; | |
1721 | ||
93638471 | 1722 | return lang_output_section_find_by_flags (sec, sec_flags, NULL, NULL); |
afd7a018 AM |
1723 | } |
1724 | ||
1725 | /* Find the last output section before given output statement. | |
1726 | Used by place_orphan. */ | |
1727 | ||
1728 | static asection * | |
1729 | output_prev_sec_find (lang_output_section_statement_type *os) | |
1730 | { | |
afd7a018 AM |
1731 | lang_output_section_statement_type *lookup; |
1732 | ||
218868ba | 1733 | for (lookup = os->prev; lookup != NULL; lookup = lookup->prev) |
afd7a018 | 1734 | { |
66c103b7 | 1735 | if (lookup->constraint < 0) |
afd7a018 | 1736 | continue; |
afd7a018 AM |
1737 | |
1738 | if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL) | |
218868ba | 1739 | return lookup->bfd_section; |
afd7a018 AM |
1740 | } |
1741 | ||
1742 | return NULL; | |
1743 | } | |
1744 | ||
53d25da6 AM |
1745 | /* Look for a suitable place for a new output section statement. The |
1746 | idea is to skip over anything that might be inside a SECTIONS {} | |
1747 | statement in a script, before we find another output section | |
1748 | statement. Assignments to "dot" before an output section statement | |
0fa4d7cf AM |
1749 | are assumed to belong to it, except in two cases; The first |
1750 | assignment to dot, and assignments before non-alloc sections. | |
1751 | Otherwise we might put an orphan before . = . + SIZEOF_HEADERS or | |
1752 | similar assignments that set the initial address, or we might | |
1753 | insert non-alloc note sections among assignments setting end of | |
1754 | image symbols. */ | |
53d25da6 AM |
1755 | |
1756 | static lang_statement_union_type ** | |
1757 | insert_os_after (lang_output_section_statement_type *after) | |
1758 | { | |
1759 | lang_statement_union_type **where; | |
1760 | lang_statement_union_type **assign = NULL; | |
1761 | bfd_boolean ignore_first; | |
1762 | ||
1763 | ignore_first | |
1764 | = after == &lang_output_section_statement.head->output_section_statement; | |
1765 | ||
1766 | for (where = &after->header.next; | |
1767 | *where != NULL; | |
1768 | where = &(*where)->header.next) | |
1769 | { | |
1770 | switch ((*where)->header.type) | |
1771 | { | |
1772 | case lang_assignment_statement_enum: | |
1773 | if (assign == NULL) | |
1774 | { | |
1775 | lang_assignment_statement_type *ass; | |
1776 | ||
1777 | ass = &(*where)->assignment_statement; | |
1778 | if (ass->exp->type.node_class != etree_assert | |
1779 | && ass->exp->assign.dst[0] == '.' | |
1780 | && ass->exp->assign.dst[1] == 0 | |
1781 | && !ignore_first) | |
1782 | assign = where; | |
1783 | } | |
1784 | ignore_first = FALSE; | |
1785 | continue; | |
1786 | case lang_wild_statement_enum: | |
1787 | case lang_input_section_enum: | |
1788 | case lang_object_symbols_statement_enum: | |
1789 | case lang_fill_statement_enum: | |
1790 | case lang_data_statement_enum: | |
1791 | case lang_reloc_statement_enum: | |
1792 | case lang_padding_statement_enum: | |
1793 | case lang_constructors_statement_enum: | |
1794 | assign = NULL; | |
1795 | continue; | |
1796 | case lang_output_section_statement_enum: | |
1797 | if (assign != NULL) | |
0fa4d7cf AM |
1798 | { |
1799 | asection *s = (*where)->output_section_statement.bfd_section; | |
1800 | ||
249b2a84 L |
1801 | if (s == NULL |
1802 | || s->map_head.s == NULL | |
1803 | || (s->flags & SEC_ALLOC) != 0) | |
0fa4d7cf AM |
1804 | where = assign; |
1805 | } | |
53d25da6 AM |
1806 | break; |
1807 | case lang_input_statement_enum: | |
1808 | case lang_address_statement_enum: | |
1809 | case lang_target_statement_enum: | |
1810 | case lang_output_statement_enum: | |
1811 | case lang_group_statement_enum: | |
1812 | case lang_insert_statement_enum: | |
1813 | continue; | |
1814 | } | |
1815 | break; | |
1816 | } | |
1817 | ||
1818 | return where; | |
1819 | } | |
1820 | ||
afd7a018 | 1821 | lang_output_section_statement_type * |
7b986e99 | 1822 | lang_insert_orphan (asection *s, |
afd7a018 | 1823 | const char *secname, |
8a99a385 | 1824 | int constraint, |
afd7a018 AM |
1825 | lang_output_section_statement_type *after, |
1826 | struct orphan_save *place, | |
1827 | etree_type *address, | |
1828 | lang_statement_list_type *add_child) | |
1829 | { | |
afd7a018 | 1830 | lang_statement_list_type add; |
afd7a018 AM |
1831 | lang_output_section_statement_type *os; |
1832 | lang_output_section_statement_type **os_tail; | |
1833 | ||
afd7a018 AM |
1834 | /* If we have found an appropriate place for the output section |
1835 | statements for this orphan, add them to our own private list, | |
1836 | inserting them later into the global statement list. */ | |
1837 | if (after != NULL) | |
1838 | { | |
bde18da4 AM |
1839 | lang_list_init (&add); |
1840 | push_stat_ptr (&add); | |
afd7a018 AM |
1841 | } |
1842 | ||
0e1862bb L |
1843 | if (bfd_link_relocatable (&link_info) |
1844 | || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0) | |
011aa75f AM |
1845 | address = exp_intop (0); |
1846 | ||
1847 | os_tail = ((lang_output_section_statement_type **) | |
1848 | lang_output_section_statement.tail); | |
1e9cc1c2 | 1849 | os = lang_enter_output_section_statement (secname, address, normal_section, |
1eec346e | 1850 | NULL, NULL, NULL, constraint, 0); |
011aa75f | 1851 | |
afd7a018 AM |
1852 | if (add_child == NULL) |
1853 | add_child = &os->children; | |
b9c361e0 | 1854 | lang_add_section (add_child, s, NULL, os); |
afd7a018 | 1855 | |
f77c3948 DJ |
1856 | if (after && (s->flags & (SEC_LOAD | SEC_ALLOC)) != 0) |
1857 | { | |
1858 | const char *region = (after->region | |
1859 | ? after->region->name_list.name | |
1860 | : DEFAULT_MEMORY_REGION); | |
1861 | const char *lma_region = (after->lma_region | |
1862 | ? after->lma_region->name_list.name | |
1863 | : NULL); | |
1864 | lang_leave_output_section_statement (NULL, region, after->phdrs, | |
1865 | lma_region); | |
1866 | } | |
1867 | else | |
1868 | lang_leave_output_section_statement (NULL, DEFAULT_MEMORY_REGION, NULL, | |
1869 | NULL); | |
afd7a018 | 1870 | |
afd7a018 AM |
1871 | /* Restore the global list pointer. */ |
1872 | if (after != NULL) | |
bde18da4 | 1873 | pop_stat_ptr (); |
afd7a018 AM |
1874 | |
1875 | if (after != NULL && os->bfd_section != NULL) | |
1876 | { | |
5daa8fe7 | 1877 | asection *snew, *as; |
afd7a018 AM |
1878 | |
1879 | snew = os->bfd_section; | |
1880 | ||
1881 | /* Shuffle the bfd section list to make the output file look | |
1882 | neater. This is really only cosmetic. */ | |
1883 | if (place->section == NULL | |
1884 | && after != (&lang_output_section_statement.head | |
1885 | ->output_section_statement)) | |
1886 | { | |
1887 | asection *bfd_section = after->bfd_section; | |
1888 | ||
1889 | /* If the output statement hasn't been used to place any input | |
1890 | sections (and thus doesn't have an output bfd_section), | |
1891 | look for the closest prior output statement having an | |
1892 | output section. */ | |
1893 | if (bfd_section == NULL) | |
1894 | bfd_section = output_prev_sec_find (after); | |
1895 | ||
1896 | if (bfd_section != NULL && bfd_section != snew) | |
1897 | place->section = &bfd_section->next; | |
1898 | } | |
1899 | ||
1900 | if (place->section == NULL) | |
f13a99db | 1901 | place->section = &link_info.output_bfd->sections; |
afd7a018 | 1902 | |
5daa8fe7 | 1903 | as = *place->section; |
5e542ba7 MS |
1904 | |
1905 | if (!as) | |
329c1c86 AM |
1906 | { |
1907 | /* Put the section at the end of the list. */ | |
5e542ba7 MS |
1908 | |
1909 | /* Unlink the section. */ | |
f13a99db | 1910 | bfd_section_list_remove (link_info.output_bfd, snew); |
5e542ba7 MS |
1911 | |
1912 | /* Now tack it back on in the right place. */ | |
f13a99db | 1913 | bfd_section_list_append (link_info.output_bfd, snew); |
329c1c86 | 1914 | } |
5e542ba7 | 1915 | else if (as != snew && as->prev != snew) |
5daa8fe7 L |
1916 | { |
1917 | /* Unlink the section. */ | |
f13a99db | 1918 | bfd_section_list_remove (link_info.output_bfd, snew); |
afd7a018 | 1919 | |
5daa8fe7 | 1920 | /* Now tack it back on in the right place. */ |
f13a99db | 1921 | bfd_section_list_insert_before (link_info.output_bfd, as, snew); |
5daa8fe7 | 1922 | } |
afd7a018 AM |
1923 | |
1924 | /* Save the end of this list. Further ophans of this type will | |
1925 | follow the one we've just added. */ | |
1926 | place->section = &snew->next; | |
1927 | ||
1928 | /* The following is non-cosmetic. We try to put the output | |
1929 | statements in some sort of reasonable order here, because they | |
1930 | determine the final load addresses of the orphan sections. | |
1931 | In addition, placing output statements in the wrong order may | |
1932 | require extra segments. For instance, given a typical | |
1933 | situation of all read-only sections placed in one segment and | |
1934 | following that a segment containing all the read-write | |
1935 | sections, we wouldn't want to place an orphan read/write | |
1936 | section before or amongst the read-only ones. */ | |
1937 | if (add.head != NULL) | |
1938 | { | |
1939 | lang_output_section_statement_type *newly_added_os; | |
1940 | ||
1941 | if (place->stmt == NULL) | |
1942 | { | |
53d25da6 | 1943 | lang_statement_union_type **where = insert_os_after (after); |
afd7a018 AM |
1944 | |
1945 | *add.tail = *where; | |
1946 | *where = add.head; | |
1947 | ||
1948 | place->os_tail = &after->next; | |
1949 | } | |
1950 | else | |
1951 | { | |
1952 | /* Put it after the last orphan statement we added. */ | |
1953 | *add.tail = *place->stmt; | |
1954 | *place->stmt = add.head; | |
1955 | } | |
1956 | ||
1957 | /* Fix the global list pointer if we happened to tack our | |
1958 | new list at the tail. */ | |
bde18da4 AM |
1959 | if (*stat_ptr->tail == add.head) |
1960 | stat_ptr->tail = add.tail; | |
afd7a018 AM |
1961 | |
1962 | /* Save the end of this list. */ | |
1963 | place->stmt = add.tail; | |
1964 | ||
1965 | /* Do the same for the list of output section statements. */ | |
1966 | newly_added_os = *os_tail; | |
1967 | *os_tail = NULL; | |
218868ba AM |
1968 | newly_added_os->prev = (lang_output_section_statement_type *) |
1969 | ((char *) place->os_tail | |
1970 | - offsetof (lang_output_section_statement_type, next)); | |
afd7a018 | 1971 | newly_added_os->next = *place->os_tail; |
218868ba AM |
1972 | if (newly_added_os->next != NULL) |
1973 | newly_added_os->next->prev = newly_added_os; | |
afd7a018 AM |
1974 | *place->os_tail = newly_added_os; |
1975 | place->os_tail = &newly_added_os->next; | |
1976 | ||
1977 | /* Fixing the global list pointer here is a little different. | |
1978 | We added to the list in lang_enter_output_section_statement, | |
1979 | trimmed off the new output_section_statment above when | |
1980 | assigning *os_tail = NULL, but possibly added it back in | |
1981 | the same place when assigning *place->os_tail. */ | |
1982 | if (*os_tail == NULL) | |
1983 | lang_output_section_statement.tail | |
1984 | = (lang_statement_union_type **) os_tail; | |
1985 | } | |
1986 | } | |
1987 | return os; | |
1988 | } | |
1989 | ||
16e4ecc0 AM |
1990 | static void |
1991 | lang_print_asneeded (void) | |
1992 | { | |
1993 | struct asneeded_minfo *m; | |
16e4ecc0 AM |
1994 | |
1995 | if (asneeded_list_head == NULL) | |
1996 | return; | |
1997 | ||
1273da04 | 1998 | minfo (_("\nAs-needed library included to satisfy reference by file (symbol)\n\n")); |
16e4ecc0 AM |
1999 | |
2000 | for (m = asneeded_list_head; m != NULL; m = m->next) | |
2001 | { | |
2002 | size_t len; | |
2003 | ||
2004 | minfo ("%s", m->soname); | |
2005 | len = strlen (m->soname); | |
2006 | ||
2007 | if (len >= 29) | |
2008 | { | |
2009 | print_nl (); | |
2010 | len = 0; | |
2011 | } | |
2012 | while (len < 30) | |
2013 | { | |
2014 | print_space (); | |
2015 | ++len; | |
2016 | } | |
2017 | ||
2018 | if (m->ref != NULL) | |
871b3ab2 | 2019 | minfo ("%pB ", m->ref); |
c1c8c1ef | 2020 | minfo ("(%pT)\n", m->name); |
16e4ecc0 AM |
2021 | } |
2022 | } | |
2023 | ||
252b5132 | 2024 | static void |
1579bae1 | 2025 | lang_map_flags (flagword flag) |
252b5132 RH |
2026 | { |
2027 | if (flag & SEC_ALLOC) | |
2028 | minfo ("a"); | |
2029 | ||
2030 | if (flag & SEC_CODE) | |
2031 | minfo ("x"); | |
2032 | ||
2033 | if (flag & SEC_READONLY) | |
2034 | minfo ("r"); | |
2035 | ||
2036 | if (flag & SEC_DATA) | |
2037 | minfo ("w"); | |
2038 | ||
2039 | if (flag & SEC_LOAD) | |
2040 | minfo ("l"); | |
2041 | } | |
2042 | ||
2043 | void | |
1579bae1 | 2044 | lang_map (void) |
252b5132 RH |
2045 | { |
2046 | lang_memory_region_type *m; | |
4d4920ec | 2047 | bfd_boolean dis_header_printed = FALSE; |
252b5132 | 2048 | |
4d4920ec EB |
2049 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
2050 | { | |
2051 | asection *s; | |
2052 | ||
2053 | if ((file->the_bfd->flags & (BFD_LINKER_CREATED | DYNAMIC)) != 0 | |
66be1055 | 2054 | || file->flags.just_syms) |
4d4920ec EB |
2055 | continue; |
2056 | ||
2057 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
a14a5de3 | 2058 | if ((s->output_section == NULL |
f13a99db | 2059 | || s->output_section->owner != link_info.output_bfd) |
a14a5de3 | 2060 | && (s->flags & (SEC_LINKER_CREATED | SEC_KEEP)) == 0) |
4d4920ec | 2061 | { |
0aa7f586 | 2062 | if (!dis_header_printed) |
4d4920ec EB |
2063 | { |
2064 | fprintf (config.map_file, _("\nDiscarded input sections\n\n")); | |
2065 | dis_header_printed = TRUE; | |
2066 | } | |
2067 | ||
d64703c6 | 2068 | print_input_section (s, TRUE); |
4d4920ec EB |
2069 | } |
2070 | } | |
2071 | ||
252b5132 RH |
2072 | minfo (_("\nMemory Configuration\n\n")); |
2073 | fprintf (config.map_file, "%-16s %-18s %-18s %s\n", | |
2074 | _("Name"), _("Origin"), _("Length"), _("Attributes")); | |
2075 | ||
1579bae1 | 2076 | for (m = lang_memory_region_list; m != NULL; m = m->next) |
252b5132 RH |
2077 | { |
2078 | char buf[100]; | |
2079 | int len; | |
2080 | ||
4a93e180 | 2081 | fprintf (config.map_file, "%-16s ", m->name_list.name); |
252b5132 RH |
2082 | |
2083 | sprintf_vma (buf, m->origin); | |
2084 | minfo ("0x%s ", buf); | |
2085 | len = strlen (buf); | |
2086 | while (len < 16) | |
2087 | { | |
2088 | print_space (); | |
2089 | ++len; | |
2090 | } | |
2091 | ||
2092 | minfo ("0x%V", m->length); | |
2093 | if (m->flags || m->not_flags) | |
2094 | { | |
2095 | #ifndef BFD64 | |
2096 | minfo (" "); | |
2097 | #endif | |
2098 | if (m->flags) | |
2099 | { | |
2100 | print_space (); | |
2101 | lang_map_flags (m->flags); | |
2102 | } | |
2103 | ||
2104 | if (m->not_flags) | |
2105 | { | |
2106 | minfo (" !"); | |
2107 | lang_map_flags (m->not_flags); | |
2108 | } | |
2109 | } | |
2110 | ||
2111 | print_nl (); | |
2112 | } | |
2113 | ||
2114 | fprintf (config.map_file, _("\nLinker script and memory map\n\n")); | |
2115 | ||
0aa7f586 | 2116 | if (!link_info.reduce_memory_overheads) |
35835446 JR |
2117 | { |
2118 | obstack_begin (&map_obstack, 1000); | |
35835446 JR |
2119 | bfd_link_hash_traverse (link_info.hash, sort_def_symbol, 0); |
2120 | } | |
fa72205c | 2121 | lang_statement_iteration++; |
252b5132 | 2122 | print_statements (); |
7a2f2d82 | 2123 | |
0aa7f586 AM |
2124 | ldemul_extra_map_file_text (link_info.output_bfd, &link_info, |
2125 | config.map_file); | |
252b5132 RH |
2126 | } |
2127 | ||
35835446 | 2128 | static bfd_boolean |
967928e9 AM |
2129 | sort_def_symbol (struct bfd_link_hash_entry *hash_entry, |
2130 | void *info ATTRIBUTE_UNUSED) | |
35835446 | 2131 | { |
6fcc66ab AM |
2132 | if ((hash_entry->type == bfd_link_hash_defined |
2133 | || hash_entry->type == bfd_link_hash_defweak) | |
2134 | && hash_entry->u.def.section->owner != link_info.output_bfd | |
2135 | && hash_entry->u.def.section->owner != NULL) | |
35835446 | 2136 | { |
6fcc66ab | 2137 | input_section_userdata_type *ud; |
35835446 JR |
2138 | struct map_symbol_def *def; |
2139 | ||
6fcc66ab AM |
2140 | ud = ((input_section_userdata_type *) |
2141 | get_userdata (hash_entry->u.def.section)); | |
2142 | if (!ud) | |
35835446 | 2143 | { |
6fcc66ab AM |
2144 | ud = (input_section_userdata_type *) stat_alloc (sizeof (*ud)); |
2145 | get_userdata (hash_entry->u.def.section) = ud; | |
2146 | ud->map_symbol_def_tail = &ud->map_symbol_def_head; | |
2147 | ud->map_symbol_def_count = 0; | |
35835446 | 2148 | } |
6fcc66ab | 2149 | else if (!ud->map_symbol_def_tail) |
35835446 | 2150 | ud->map_symbol_def_tail = &ud->map_symbol_def_head; |
afd7a018 | 2151 | |
1e9cc1c2 | 2152 | def = (struct map_symbol_def *) obstack_alloc (&map_obstack, sizeof *def); |
35835446 | 2153 | def->entry = hash_entry; |
76d7af2d | 2154 | *(ud->map_symbol_def_tail) = def; |
35835446 | 2155 | ud->map_symbol_def_tail = &def->next; |
02688209 | 2156 | ud->map_symbol_def_count++; |
35835446 JR |
2157 | } |
2158 | return TRUE; | |
2159 | } | |
2160 | ||
252b5132 RH |
2161 | /* Initialize an output section. */ |
2162 | ||
2163 | static void | |
dfa7b0b8 | 2164 | init_os (lang_output_section_statement_type *s, flagword flags) |
252b5132 | 2165 | { |
252b5132 | 2166 | if (strcmp (s->name, DISCARD_SECTION_NAME) == 0) |
df5f2391 | 2167 | einfo (_("%F%P: illegal use of `%s' section\n"), DISCARD_SECTION_NAME); |
252b5132 | 2168 | |
8a99a385 AM |
2169 | if (s->constraint != SPECIAL) |
2170 | s->bfd_section = bfd_get_section_by_name (link_info.output_bfd, s->name); | |
1579bae1 | 2171 | if (s->bfd_section == NULL) |
8a99a385 AM |
2172 | s->bfd_section = bfd_make_section_anyway_with_flags (link_info.output_bfd, |
2173 | s->name, flags); | |
1579bae1 | 2174 | if (s->bfd_section == NULL) |
252b5132 | 2175 | { |
df5f2391 | 2176 | einfo (_("%F%P: output format %s cannot represent section" |
0aa7f586 | 2177 | " called %s: %E\n"), |
f13a99db | 2178 | link_info.output_bfd->xvec->name, s->name); |
252b5132 RH |
2179 | } |
2180 | s->bfd_section->output_section = s->bfd_section; | |
252b5132 | 2181 | s->bfd_section->output_offset = 0; |
e0f6802f | 2182 | |
24ef1aa7 GM |
2183 | /* Set the userdata of the output section to the output section |
2184 | statement to avoid lookup. */ | |
2185 | get_userdata (s->bfd_section) = s; | |
2186 | ||
a431bc2e AM |
2187 | /* If there is a base address, make sure that any sections it might |
2188 | mention are initialized. */ | |
2189 | if (s->addr_tree != NULL) | |
2190 | exp_init_os (s->addr_tree); | |
2191 | ||
2192 | if (s->load_base != NULL) | |
2193 | exp_init_os (s->load_base); | |
2194 | ||
7270c5ed AM |
2195 | /* If supplied an alignment, set it. */ |
2196 | if (s->section_alignment != -1) | |
2197 | s->bfd_section->alignment_power = s->section_alignment; | |
252b5132 RH |
2198 | } |
2199 | ||
2200 | /* Make sure that all output sections mentioned in an expression are | |
2201 | initialized. */ | |
2202 | ||
2203 | static void | |
1579bae1 | 2204 | exp_init_os (etree_type *exp) |
252b5132 RH |
2205 | { |
2206 | switch (exp->type.node_class) | |
2207 | { | |
2208 | case etree_assign: | |
9f4fb502 | 2209 | case etree_provide: |
eab62f2f | 2210 | case etree_provided: |
252b5132 RH |
2211 | exp_init_os (exp->assign.src); |
2212 | break; | |
2213 | ||
2214 | case etree_binary: | |
2215 | exp_init_os (exp->binary.lhs); | |
2216 | exp_init_os (exp->binary.rhs); | |
2217 | break; | |
2218 | ||
2219 | case etree_trinary: | |
2220 | exp_init_os (exp->trinary.cond); | |
2221 | exp_init_os (exp->trinary.lhs); | |
2222 | exp_init_os (exp->trinary.rhs); | |
2223 | break; | |
2224 | ||
b6ca8815 NS |
2225 | case etree_assert: |
2226 | exp_init_os (exp->assert_s.child); | |
2227 | break; | |
afd7a018 | 2228 | |
252b5132 RH |
2229 | case etree_unary: |
2230 | exp_init_os (exp->unary.child); | |
2231 | break; | |
2232 | ||
2233 | case etree_name: | |
2234 | switch (exp->type.node_code) | |
2235 | { | |
2236 | case ADDR: | |
2237 | case LOADADDR: | |
2238 | case SIZEOF: | |
2239 | { | |
2240 | lang_output_section_statement_type *os; | |
2241 | ||
2242 | os = lang_output_section_find (exp->name.name); | |
2243 | if (os != NULL && os->bfd_section == NULL) | |
dfa7b0b8 | 2244 | init_os (os, 0); |
252b5132 RH |
2245 | } |
2246 | } | |
2247 | break; | |
2248 | ||
2249 | default: | |
2250 | break; | |
2251 | } | |
2252 | } | |
9503fd87 | 2253 | \f |
252b5132 | 2254 | static void |
1579bae1 | 2255 | section_already_linked (bfd *abfd, asection *sec, void *data) |
252b5132 | 2256 | { |
1e9cc1c2 | 2257 | lang_input_statement_type *entry = (lang_input_statement_type *) data; |
252b5132 RH |
2258 | |
2259 | /* If we are only reading symbols from this object, then we want to | |
2260 | discard all sections. */ | |
66be1055 | 2261 | if (entry->flags.just_syms) |
252b5132 | 2262 | { |
1449d79b | 2263 | bfd_link_just_syms (abfd, sec, &link_info); |
252b5132 RH |
2264 | return; |
2265 | } | |
2266 | ||
2e84f9c1 AM |
2267 | /* Deal with SHF_EXCLUDE ELF sections. */ |
2268 | if (!bfd_link_relocatable (&link_info) | |
2269 | && (abfd->flags & BFD_PLUGIN) == 0 | |
2270 | && (sec->flags & (SEC_GROUP | SEC_KEEP | SEC_EXCLUDE)) == SEC_EXCLUDE) | |
2271 | sec->output_section = bfd_abs_section_ptr; | |
2272 | ||
ace66bb2 | 2273 | if (!(abfd->flags & DYNAMIC)) |
c77ec726 | 2274 | bfd_section_already_linked (abfd, sec, &link_info); |
252b5132 RH |
2275 | } |
2276 | \f | |
5b5f4e6f AB |
2277 | |
2278 | /* Returns true if SECTION is one we know will be discarded based on its | |
2279 | section flags, otherwise returns false. */ | |
2280 | ||
2281 | static bfd_boolean | |
2282 | lang_discard_section_p (asection *section) | |
2283 | { | |
2284 | bfd_boolean discard; | |
2285 | flagword flags = section->flags; | |
2286 | ||
2287 | /* Discard sections marked with SEC_EXCLUDE. */ | |
2288 | discard = (flags & SEC_EXCLUDE) != 0; | |
2289 | ||
2290 | /* Discard the group descriptor sections when we're finally placing the | |
2291 | sections from within the group. */ | |
2292 | if ((flags & SEC_GROUP) != 0 | |
2293 | && link_info.resolve_section_groups) | |
2294 | discard = TRUE; | |
2295 | ||
2296 | /* Discard debugging sections if we are stripping debugging | |
2297 | information. */ | |
2298 | if ((link_info.strip == strip_debugger || link_info.strip == strip_all) | |
2299 | && (flags & SEC_DEBUGGING) != 0) | |
2300 | discard = TRUE; | |
2301 | ||
2302 | return discard; | |
2303 | } | |
2304 | ||
252b5132 RH |
2305 | /* The wild routines. |
2306 | ||
2307 | These expand statements like *(.text) and foo.o to a list of | |
2308 | explicit actions, like foo.o(.text), bar.o(.text) and | |
2309 | foo.o(.text, .data). */ | |
2310 | ||
252b5132 | 2311 | /* Add SECTION to the output section OUTPUT. Do this by creating a |
b9c361e0 | 2312 | lang_input_section statement which is placed at PTR. */ |
252b5132 RH |
2313 | |
2314 | void | |
1579bae1 AM |
2315 | lang_add_section (lang_statement_list_type *ptr, |
2316 | asection *section, | |
b9c361e0 | 2317 | struct flag_info *sflag_info, |
7b986e99 | 2318 | lang_output_section_statement_type *output) |
252b5132 | 2319 | { |
164e712d | 2320 | flagword flags = section->flags; |
ae17ab41 | 2321 | |
b34976b6 | 2322 | bfd_boolean discard; |
dfa7b0b8 | 2323 | lang_input_section_type *new_section; |
ae17ab41 | 2324 | bfd *abfd = link_info.output_bfd; |
252b5132 | 2325 | |
5b5f4e6f AB |
2326 | /* Is this section one we know should be discarded? */ |
2327 | discard = lang_discard_section_p (section); | |
252b5132 RH |
2328 | |
2329 | /* Discard input sections which are assigned to a section named | |
2330 | DISCARD_SECTION_NAME. */ | |
2331 | if (strcmp (output->name, DISCARD_SECTION_NAME) == 0) | |
b34976b6 | 2332 | discard = TRUE; |
252b5132 | 2333 | |
252b5132 RH |
2334 | if (discard) |
2335 | { | |
2336 | if (section->output_section == NULL) | |
2337 | { | |
2338 | /* This prevents future calls from assigning this section. */ | |
2339 | section->output_section = bfd_abs_section_ptr; | |
2340 | } | |
2341 | return; | |
2342 | } | |
2343 | ||
ae17ab41 CM |
2344 | if (sflag_info) |
2345 | { | |
b9c361e0 | 2346 | bfd_boolean keep; |
ae17ab41 | 2347 | |
b9c361e0 JL |
2348 | keep = bfd_lookup_section_flags (&link_info, sflag_info, section); |
2349 | if (!keep) | |
4724d37e | 2350 | return; |
ae17ab41 CM |
2351 | } |
2352 | ||
dfa7b0b8 AM |
2353 | if (section->output_section != NULL) |
2354 | return; | |
252b5132 | 2355 | |
dfa7b0b8 AM |
2356 | /* We don't copy the SEC_NEVER_LOAD flag from an input section |
2357 | to an output section, because we want to be able to include a | |
2358 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
2359 | section (I don't know why we want to do this, but we do). | |
2360 | build_link_order in ldwrite.c handles this case by turning | |
2361 | the embedded SEC_NEVER_LOAD section into a fill. */ | |
2362 | flags &= ~ SEC_NEVER_LOAD; | |
8423293d | 2363 | |
dfa7b0b8 AM |
2364 | /* If final link, don't copy the SEC_LINK_ONCE flags, they've |
2365 | already been processed. One reason to do this is that on pe | |
2366 | format targets, .text$foo sections go into .text and it's odd | |
2367 | to see .text with SEC_LINK_ONCE set. */ | |
7bdf4127 AB |
2368 | if ((flags & (SEC_LINK_ONCE | SEC_GROUP)) == (SEC_LINK_ONCE | SEC_GROUP)) |
2369 | { | |
2370 | if (link_info.resolve_section_groups) | |
6c19b93b | 2371 | flags &= ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC); |
7bdf4127 | 2372 | else |
6c19b93b | 2373 | flags &= ~(SEC_LINK_DUPLICATES | SEC_RELOC); |
7bdf4127 AB |
2374 | } |
2375 | else if (!bfd_link_relocatable (&link_info)) | |
0814be7d | 2376 | flags &= ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC); |
252b5132 | 2377 | |
dfa7b0b8 AM |
2378 | switch (output->sectype) |
2379 | { | |
2380 | case normal_section: | |
2381 | case overlay_section: | |
2382 | break; | |
2383 | case noalloc_section: | |
2384 | flags &= ~SEC_ALLOC; | |
2385 | break; | |
2386 | case noload_section: | |
2387 | flags &= ~SEC_LOAD; | |
2388 | flags |= SEC_NEVER_LOAD; | |
f4eaaf7f AM |
2389 | /* Unfortunately GNU ld has managed to evolve two different |
2390 | meanings to NOLOAD in scripts. ELF gets a .bss style noload, | |
2391 | alloc, no contents section. All others get a noload, noalloc | |
2392 | section. */ | |
2393 | if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour) | |
2e76e85a | 2394 | flags &= ~SEC_HAS_CONTENTS; |
f4eaaf7f AM |
2395 | else |
2396 | flags &= ~SEC_ALLOC; | |
dfa7b0b8 AM |
2397 | break; |
2398 | } | |
252b5132 | 2399 | |
dfa7b0b8 AM |
2400 | if (output->bfd_section == NULL) |
2401 | init_os (output, flags); | |
252b5132 | 2402 | |
dfa7b0b8 AM |
2403 | /* If SEC_READONLY is not set in the input section, then clear |
2404 | it from the output section. */ | |
2405 | output->bfd_section->flags &= flags | ~SEC_READONLY; | |
252b5132 | 2406 | |
dfa7b0b8 AM |
2407 | if (output->bfd_section->linker_has_input) |
2408 | { | |
2409 | /* Only set SEC_READONLY flag on the first input section. */ | |
2410 | flags &= ~ SEC_READONLY; | |
252b5132 | 2411 | |
f5fa8ca2 | 2412 | /* Keep SEC_MERGE and SEC_STRINGS only if they are the same. */ |
dfa7b0b8 AM |
2413 | if ((output->bfd_section->flags & (SEC_MERGE | SEC_STRINGS)) |
2414 | != (flags & (SEC_MERGE | SEC_STRINGS)) | |
2415 | || ((flags & SEC_MERGE) != 0 | |
2416 | && output->bfd_section->entsize != section->entsize)) | |
f5fa8ca2 | 2417 | { |
afd7a018 | 2418 | output->bfd_section->flags &= ~ (SEC_MERGE | SEC_STRINGS); |
f5fa8ca2 JJ |
2419 | flags &= ~ (SEC_MERGE | SEC_STRINGS); |
2420 | } | |
dfa7b0b8 AM |
2421 | } |
2422 | output->bfd_section->flags |= flags; | |
f5fa8ca2 | 2423 | |
dfa7b0b8 AM |
2424 | if (!output->bfd_section->linker_has_input) |
2425 | { | |
2426 | output->bfd_section->linker_has_input = 1; | |
2427 | /* This must happen after flags have been updated. The output | |
2428 | section may have been created before we saw its first input | |
2429 | section, eg. for a data statement. */ | |
2430 | bfd_init_private_section_data (section->owner, section, | |
2431 | link_info.output_bfd, | |
2432 | output->bfd_section, | |
2433 | &link_info); | |
2434 | if ((flags & SEC_MERGE) != 0) | |
afd7a018 | 2435 | output->bfd_section->entsize = section->entsize; |
dfa7b0b8 | 2436 | } |
f5fa8ca2 | 2437 | |
dfa7b0b8 AM |
2438 | if ((flags & SEC_TIC54X_BLOCK) != 0 |
2439 | && bfd_get_arch (section->owner) == bfd_arch_tic54x) | |
2440 | { | |
2441 | /* FIXME: This value should really be obtained from the bfd... */ | |
2442 | output->block_value = 128; | |
2443 | } | |
252b5132 | 2444 | |
dfa7b0b8 AM |
2445 | if (section->alignment_power > output->bfd_section->alignment_power) |
2446 | output->bfd_section->alignment_power = section->alignment_power; | |
9e41f973 | 2447 | |
dfa7b0b8 | 2448 | section->output_section = output->bfd_section; |
252b5132 | 2449 | |
5b69e357 | 2450 | if (!map_head_is_link_order) |
dfa7b0b8 AM |
2451 | { |
2452 | asection *s = output->bfd_section->map_tail.s; | |
2453 | output->bfd_section->map_tail.s = section; | |
2454 | section->map_head.s = NULL; | |
2455 | section->map_tail.s = s; | |
2456 | if (s != NULL) | |
2457 | s->map_head.s = section; | |
2458 | else | |
2459 | output->bfd_section->map_head.s = section; | |
252b5132 | 2460 | } |
dfa7b0b8 AM |
2461 | |
2462 | /* Add a section reference to the list. */ | |
2463 | new_section = new_stat (lang_input_section, ptr); | |
2464 | new_section->section = section; | |
252b5132 RH |
2465 | } |
2466 | ||
2467 | /* Handle wildcard sorting. This returns the lang_input_section which | |
2468 | should follow the one we are going to create for SECTION and FILE, | |
2469 | based on the sorting requirements of WILD. It returns NULL if the | |
2470 | new section should just go at the end of the current list. */ | |
2471 | ||
2472 | static lang_statement_union_type * | |
1579bae1 AM |
2473 | wild_sort (lang_wild_statement_type *wild, |
2474 | struct wildcard_list *sec, | |
2475 | lang_input_statement_type *file, | |
2476 | asection *section) | |
252b5132 | 2477 | { |
252b5132 RH |
2478 | lang_statement_union_type *l; |
2479 | ||
bcaa7b3e L |
2480 | if (!wild->filenames_sorted |
2481 | && (sec == NULL || sec->spec.sorted == none)) | |
252b5132 RH |
2482 | return NULL; |
2483 | ||
bba1a0c0 | 2484 | for (l = wild->children.head; l != NULL; l = l->header.next) |
252b5132 RH |
2485 | { |
2486 | lang_input_section_type *ls; | |
2487 | ||
2488 | if (l->header.type != lang_input_section_enum) | |
2489 | continue; | |
2490 | ls = &l->input_section; | |
2491 | ||
2492 | /* Sorting by filename takes precedence over sorting by section | |
afd7a018 | 2493 | name. */ |
252b5132 RH |
2494 | |
2495 | if (wild->filenames_sorted) | |
2496 | { | |
2497 | const char *fn, *ln; | |
b34976b6 | 2498 | bfd_boolean fa, la; |
252b5132 RH |
2499 | int i; |
2500 | ||
2501 | /* The PE support for the .idata section as generated by | |
afd7a018 AM |
2502 | dlltool assumes that files will be sorted by the name of |
2503 | the archive and then the name of the file within the | |
2504 | archive. */ | |
252b5132 RH |
2505 | |
2506 | if (file->the_bfd != NULL | |
3860d2b4 | 2507 | && file->the_bfd->my_archive != NULL) |
252b5132 | 2508 | { |
3860d2b4 | 2509 | fn = bfd_get_filename (file->the_bfd->my_archive); |
b34976b6 | 2510 | fa = TRUE; |
252b5132 RH |
2511 | } |
2512 | else | |
2513 | { | |
2514 | fn = file->filename; | |
b34976b6 | 2515 | fa = FALSE; |
252b5132 RH |
2516 | } |
2517 | ||
3860d2b4 | 2518 | if (ls->section->owner->my_archive != NULL) |
252b5132 | 2519 | { |
3860d2b4 | 2520 | ln = bfd_get_filename (ls->section->owner->my_archive); |
b34976b6 | 2521 | la = TRUE; |
252b5132 RH |
2522 | } |
2523 | else | |
2524 | { | |
7b986e99 | 2525 | ln = ls->section->owner->filename; |
b34976b6 | 2526 | la = FALSE; |
252b5132 RH |
2527 | } |
2528 | ||
42627821 | 2529 | i = filename_cmp (fn, ln); |
252b5132 RH |
2530 | if (i > 0) |
2531 | continue; | |
2532 | else if (i < 0) | |
2533 | break; | |
2534 | ||
2535 | if (fa || la) | |
2536 | { | |
2537 | if (fa) | |
2538 | fn = file->filename; | |
2539 | if (la) | |
7b986e99 | 2540 | ln = ls->section->owner->filename; |
252b5132 | 2541 | |
42627821 | 2542 | i = filename_cmp (fn, ln); |
252b5132 RH |
2543 | if (i > 0) |
2544 | continue; | |
2545 | else if (i < 0) | |
2546 | break; | |
2547 | } | |
2548 | } | |
2549 | ||
2550 | /* Here either the files are not sorted by name, or we are | |
afd7a018 | 2551 | looking at the sections for this file. */ |
252b5132 | 2552 | |
b2e4da5a L |
2553 | if (sec != NULL |
2554 | && sec->spec.sorted != none | |
2555 | && sec->spec.sorted != by_none) | |
32124d5b AM |
2556 | if (compare_section (sec->spec.sorted, section, ls->section) < 0) |
2557 | break; | |
252b5132 RH |
2558 | } |
2559 | ||
2560 | return l; | |
2561 | } | |
2562 | ||
2563 | /* Expand a wild statement for a particular FILE. SECTION may be | |
2564 | NULL, in which case it is a wild card. */ | |
2565 | ||
2566 | static void | |
1579bae1 AM |
2567 | output_section_callback (lang_wild_statement_type *ptr, |
2568 | struct wildcard_list *sec, | |
2569 | asection *section, | |
b9c361e0 | 2570 | struct flag_info *sflag_info, |
1579bae1 AM |
2571 | lang_input_statement_type *file, |
2572 | void *output) | |
4dec4d4e RH |
2573 | { |
2574 | lang_statement_union_type *before; | |
d0bf826b AM |
2575 | lang_output_section_statement_type *os; |
2576 | ||
2577 | os = (lang_output_section_statement_type *) output; | |
5f992e62 | 2578 | |
b6bf44ba | 2579 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
d0bf826b | 2580 | if (unique_section_p (section, os)) |
b6bf44ba AM |
2581 | return; |
2582 | ||
b6bf44ba | 2583 | before = wild_sort (ptr, sec, file, section); |
5f992e62 | 2584 | |
4dec4d4e RH |
2585 | /* Here BEFORE points to the lang_input_section which |
2586 | should follow the one we are about to add. If BEFORE | |
2587 | is NULL, then the section should just go at the end | |
2588 | of the current list. */ | |
5f992e62 | 2589 | |
4dec4d4e | 2590 | if (before == NULL) |
b9c361e0 | 2591 | lang_add_section (&ptr->children, section, sflag_info, os); |
4dec4d4e | 2592 | else |
252b5132 | 2593 | { |
4dec4d4e RH |
2594 | lang_statement_list_type list; |
2595 | lang_statement_union_type **pp; | |
5f992e62 | 2596 | |
4dec4d4e | 2597 | lang_list_init (&list); |
b9c361e0 | 2598 | lang_add_section (&list, section, sflag_info, os); |
5f992e62 | 2599 | |
4dec4d4e RH |
2600 | /* If we are discarding the section, LIST.HEAD will |
2601 | be NULL. */ | |
2602 | if (list.head != NULL) | |
252b5132 | 2603 | { |
bba1a0c0 | 2604 | ASSERT (list.head->header.next == NULL); |
5f992e62 | 2605 | |
4dec4d4e RH |
2606 | for (pp = &ptr->children.head; |
2607 | *pp != before; | |
bba1a0c0 | 2608 | pp = &(*pp)->header.next) |
4dec4d4e | 2609 | ASSERT (*pp != NULL); |
5f992e62 | 2610 | |
bba1a0c0 | 2611 | list.head->header.next = *pp; |
4dec4d4e | 2612 | *pp = list.head; |
252b5132 RH |
2613 | } |
2614 | } | |
2615 | } | |
2616 | ||
0841712e JJ |
2617 | /* Check if all sections in a wild statement for a particular FILE |
2618 | are readonly. */ | |
2619 | ||
2620 | static void | |
2621 | check_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED, | |
2622 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
2623 | asection *section, | |
b9c361e0 | 2624 | struct flag_info *sflag_info ATTRIBUTE_UNUSED, |
0841712e | 2625 | lang_input_statement_type *file ATTRIBUTE_UNUSED, |
d0bf826b | 2626 | void *output) |
0841712e | 2627 | { |
d0bf826b AM |
2628 | lang_output_section_statement_type *os; |
2629 | ||
2630 | os = (lang_output_section_statement_type *) output; | |
2631 | ||
0841712e | 2632 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
d0bf826b | 2633 | if (unique_section_p (section, os)) |
0841712e JJ |
2634 | return; |
2635 | ||
6feb9908 | 2636 | if (section->output_section == NULL && (section->flags & SEC_READONLY) == 0) |
d0bf826b | 2637 | os->all_input_readonly = FALSE; |
0841712e JJ |
2638 | } |
2639 | ||
252b5132 RH |
2640 | /* This is passed a file name which must have been seen already and |
2641 | added to the statement tree. We will see if it has been opened | |
2642 | already and had its symbols read. If not then we'll read it. */ | |
2643 | ||
2644 | static lang_input_statement_type * | |
1579bae1 | 2645 | lookup_name (const char *name) |
252b5132 RH |
2646 | { |
2647 | lang_input_statement_type *search; | |
2648 | ||
2649 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
1579bae1 | 2650 | search != NULL; |
252b5132 RH |
2651 | search = (lang_input_statement_type *) search->next_real_file) |
2652 | { | |
0013291d NC |
2653 | /* Use the local_sym_name as the name of the file that has |
2654 | already been loaded as filename might have been transformed | |
2655 | via the search directory lookup mechanism. */ | |
87aa7f19 | 2656 | const char *filename = search->local_sym_name; |
0013291d | 2657 | |
0013291d | 2658 | if (filename != NULL |
42627821 | 2659 | && filename_cmp (filename, name) == 0) |
252b5132 RH |
2660 | break; |
2661 | } | |
2662 | ||
1579bae1 | 2663 | if (search == NULL) |
6feb9908 AM |
2664 | search = new_afile (name, lang_input_file_is_search_file_enum, |
2665 | default_target, FALSE); | |
252b5132 RH |
2666 | |
2667 | /* If we have already added this file, or this file is not real | |
87aa7f19 | 2668 | don't add this file. */ |
66be1055 | 2669 | if (search->flags.loaded || !search->flags.real) |
252b5132 RH |
2670 | return search; |
2671 | ||
0aa7f586 | 2672 | if (!load_symbols (search, NULL)) |
6770ec8c | 2673 | return NULL; |
252b5132 RH |
2674 | |
2675 | return search; | |
2676 | } | |
2677 | ||
b58f81ae DJ |
2678 | /* Save LIST as a list of libraries whose symbols should not be exported. */ |
2679 | ||
2680 | struct excluded_lib | |
2681 | { | |
2682 | char *name; | |
2683 | struct excluded_lib *next; | |
2684 | }; | |
2685 | static struct excluded_lib *excluded_libs; | |
2686 | ||
2687 | void | |
2688 | add_excluded_libs (const char *list) | |
2689 | { | |
2690 | const char *p = list, *end; | |
2691 | ||
2692 | while (*p != '\0') | |
2693 | { | |
2694 | struct excluded_lib *entry; | |
2695 | end = strpbrk (p, ",:"); | |
2696 | if (end == NULL) | |
2697 | end = p + strlen (p); | |
1e9cc1c2 | 2698 | entry = (struct excluded_lib *) xmalloc (sizeof (*entry)); |
b58f81ae | 2699 | entry->next = excluded_libs; |
1e9cc1c2 | 2700 | entry->name = (char *) xmalloc (end - p + 1); |
b58f81ae DJ |
2701 | memcpy (entry->name, p, end - p); |
2702 | entry->name[end - p] = '\0'; | |
2703 | excluded_libs = entry; | |
2704 | if (*end == '\0') | |
329c1c86 | 2705 | break; |
b58f81ae DJ |
2706 | p = end + 1; |
2707 | } | |
2708 | } | |
2709 | ||
2710 | static void | |
2711 | check_excluded_libs (bfd *abfd) | |
2712 | { | |
2713 | struct excluded_lib *lib = excluded_libs; | |
2714 | ||
2715 | while (lib) | |
2716 | { | |
2717 | int len = strlen (lib->name); | |
2718 | const char *filename = lbasename (abfd->filename); | |
2719 | ||
2720 | if (strcmp (lib->name, "ALL") == 0) | |
2721 | { | |
2722 | abfd->no_export = TRUE; | |
2723 | return; | |
2724 | } | |
2725 | ||
42627821 | 2726 | if (filename_ncmp (lib->name, filename, len) == 0 |
b58f81ae DJ |
2727 | && (filename[len] == '\0' |
2728 | || (filename[len] == '.' && filename[len + 1] == 'a' | |
2729 | && filename[len + 2] == '\0'))) | |
2730 | { | |
2731 | abfd->no_export = TRUE; | |
2732 | return; | |
2733 | } | |
2734 | ||
2735 | lib = lib->next; | |
2736 | } | |
2737 | } | |
2738 | ||
252b5132 RH |
2739 | /* Get the symbols for an input file. */ |
2740 | ||
e9f53129 | 2741 | bfd_boolean |
1579bae1 AM |
2742 | load_symbols (lang_input_statement_type *entry, |
2743 | lang_statement_list_type *place) | |
252b5132 RH |
2744 | { |
2745 | char **matching; | |
2746 | ||
66be1055 | 2747 | if (entry->flags.loaded) |
b34976b6 | 2748 | return TRUE; |
252b5132 RH |
2749 | |
2750 | ldfile_open_file (entry); | |
2751 | ||
c4b78195 | 2752 | /* Do not process further if the file was missing. */ |
66be1055 | 2753 | if (entry->flags.missing_file) |
c4b78195 NC |
2754 | return TRUE; |
2755 | ||
0aa7f586 AM |
2756 | if (!bfd_check_format (entry->the_bfd, bfd_archive) |
2757 | && !bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
252b5132 RH |
2758 | { |
2759 | bfd_error_type err; | |
66be1055 | 2760 | struct lang_input_statement_flags save_flags; |
47e2e729 | 2761 | extern FILE *yyin; |
b7a26f91 | 2762 | |
252b5132 | 2763 | err = bfd_get_error (); |
884fb58e NC |
2764 | |
2765 | /* See if the emulation has some special knowledge. */ | |
2766 | if (ldemul_unrecognized_file (entry)) | |
b34976b6 | 2767 | return TRUE; |
884fb58e | 2768 | |
252b5132 RH |
2769 | if (err == bfd_error_file_ambiguously_recognized) |
2770 | { | |
2771 | char **p; | |
2772 | ||
df5f2391 AM |
2773 | einfo (_("%P: %pB: file not recognized: %E;" |
2774 | " matching formats:"), entry->the_bfd); | |
252b5132 RH |
2775 | for (p = matching; *p != NULL; p++) |
2776 | einfo (" %s", *p); | |
2777 | einfo ("%F\n"); | |
2778 | } | |
2779 | else if (err != bfd_error_file_not_recognized | |
2780 | || place == NULL) | |
df5f2391 | 2781 | einfo (_("%F%P: %pB: file not recognized: %E\n"), entry->the_bfd); |
b7a26f91 | 2782 | |
252b5132 RH |
2783 | bfd_close (entry->the_bfd); |
2784 | entry->the_bfd = NULL; | |
2785 | ||
252b5132 | 2786 | /* Try to interpret the file as a linker script. */ |
66be1055 | 2787 | save_flags = input_flags; |
252b5132 RH |
2788 | ldfile_open_command_file (entry->filename); |
2789 | ||
bde18da4 | 2790 | push_stat_ptr (place); |
66be1055 AM |
2791 | input_flags.add_DT_NEEDED_for_regular |
2792 | = entry->flags.add_DT_NEEDED_for_regular; | |
2793 | input_flags.add_DT_NEEDED_for_dynamic | |
2794 | = entry->flags.add_DT_NEEDED_for_dynamic; | |
2795 | input_flags.whole_archive = entry->flags.whole_archive; | |
2796 | input_flags.dynamic = entry->flags.dynamic; | |
252b5132 | 2797 | |
b34976b6 | 2798 | ldfile_assumed_script = TRUE; |
252b5132 RH |
2799 | parser_input = input_script; |
2800 | yyparse (); | |
b34976b6 | 2801 | ldfile_assumed_script = FALSE; |
252b5132 | 2802 | |
f4a23d42 AM |
2803 | /* missing_file is sticky. sysrooted will already have been |
2804 | restored when seeing EOF in yyparse, but no harm to restore | |
2805 | again. */ | |
66be1055 AM |
2806 | save_flags.missing_file |= input_flags.missing_file; |
2807 | input_flags = save_flags; | |
bde18da4 | 2808 | pop_stat_ptr (); |
47e2e729 AM |
2809 | fclose (yyin); |
2810 | yyin = NULL; | |
2811 | entry->flags.loaded = TRUE; | |
252b5132 | 2812 | |
bde18da4 | 2813 | return TRUE; |
252b5132 RH |
2814 | } |
2815 | ||
2816 | if (ldemul_recognized_file (entry)) | |
b34976b6 | 2817 | return TRUE; |
252b5132 RH |
2818 | |
2819 | /* We don't call ldlang_add_file for an archive. Instead, the | |
2820 | add_symbols entry point will call ldlang_add_file, via the | |
2821 | add_archive_element callback, for each element of the archive | |
2822 | which is used. */ | |
2823 | switch (bfd_get_format (entry->the_bfd)) | |
2824 | { | |
2825 | default: | |
2826 | break; | |
2827 | ||
2828 | case bfd_object: | |
66be1055 | 2829 | if (!entry->flags.reload) |
15fc2e13 | 2830 | ldlang_add_file (entry); |
cd6f1cf3 | 2831 | if (trace_files || verbose) |
c1c8c1ef | 2832 | info_msg ("%pI\n", entry); |
252b5132 RH |
2833 | break; |
2834 | ||
2835 | case bfd_archive: | |
b58f81ae DJ |
2836 | check_excluded_libs (entry->the_bfd); |
2837 | ||
1fa4ec6a | 2838 | entry->the_bfd->usrdata = entry; |
66be1055 | 2839 | if (entry->flags.whole_archive) |
252b5132 | 2840 | { |
b7a26f91 | 2841 | bfd *member = NULL; |
b34976b6 | 2842 | bfd_boolean loaded = TRUE; |
6770ec8c NC |
2843 | |
2844 | for (;;) | |
252b5132 | 2845 | { |
5d3236ee | 2846 | bfd *subsbfd; |
6770ec8c NC |
2847 | member = bfd_openr_next_archived_file (entry->the_bfd, member); |
2848 | ||
2849 | if (member == NULL) | |
2850 | break; | |
b7a26f91 | 2851 | |
0aa7f586 | 2852 | if (!bfd_check_format (member, bfd_object)) |
6770ec8c | 2853 | { |
df5f2391 | 2854 | einfo (_("%F%P: %pB: member %pB in archive is not an object\n"), |
6770ec8c | 2855 | entry->the_bfd, member); |
b34976b6 | 2856 | loaded = FALSE; |
6770ec8c NC |
2857 | } |
2858 | ||
db0ca79f | 2859 | subsbfd = member; |
46105645 AM |
2860 | if (!(*link_info.callbacks |
2861 | ->add_archive_element) (&link_info, member, | |
2862 | "--whole-archive", &subsbfd)) | |
252b5132 | 2863 | abort (); |
6770ec8c | 2864 | |
5d3236ee DK |
2865 | /* Potentially, the add_archive_element hook may have set a |
2866 | substitute BFD for us. */ | |
46105645 | 2867 | if (!bfd_link_add_symbols (subsbfd, &link_info)) |
6770ec8c | 2868 | { |
df5f2391 | 2869 | einfo (_("%F%P: %pB: error adding symbols: %E\n"), member); |
b34976b6 | 2870 | loaded = FALSE; |
6770ec8c | 2871 | } |
252b5132 RH |
2872 | } |
2873 | ||
66be1055 | 2874 | entry->flags.loaded = loaded; |
6770ec8c | 2875 | return loaded; |
252b5132 | 2876 | } |
6770ec8c | 2877 | break; |
252b5132 RH |
2878 | } |
2879 | ||
03bdc404 | 2880 | if (bfd_link_add_symbols (entry->the_bfd, &link_info)) |
66be1055 | 2881 | entry->flags.loaded = TRUE; |
6770ec8c | 2882 | else |
df5f2391 | 2883 | einfo (_("%F%P: %pB: error adding symbols: %E\n"), entry->the_bfd); |
252b5132 | 2884 | |
66be1055 | 2885 | return entry->flags.loaded; |
252b5132 RH |
2886 | } |
2887 | ||
b6bf44ba AM |
2888 | /* Handle a wild statement. S->FILENAME or S->SECTION_LIST or both |
2889 | may be NULL, indicating that it is a wildcard. Separate | |
2890 | lang_input_section statements are created for each part of the | |
2891 | expansion; they are added after the wild statement S. OUTPUT is | |
2892 | the output section. */ | |
252b5132 RH |
2893 | |
2894 | static void | |
1579bae1 AM |
2895 | wild (lang_wild_statement_type *s, |
2896 | const char *target ATTRIBUTE_UNUSED, | |
2897 | lang_output_section_statement_type *output) | |
252b5132 | 2898 | { |
b6bf44ba | 2899 | struct wildcard_list *sec; |
252b5132 | 2900 | |
50c77e5d | 2901 | if (s->handler_data[0] |
329c1c86 | 2902 | && s->handler_data[0]->spec.sorted == by_name |
50c77e5d NC |
2903 | && !s->filenames_sorted) |
2904 | { | |
329c1c86 AM |
2905 | lang_section_bst_type *tree; |
2906 | ||
50c77e5d NC |
2907 | walk_wild (s, output_section_callback_fast, output); |
2908 | ||
e6f2cbf5 | 2909 | tree = s->tree; |
329c1c86 | 2910 | if (tree) |
e6f2cbf5 L |
2911 | { |
2912 | output_section_callback_tree_to_list (s, tree, output); | |
2913 | s->tree = NULL; | |
2914 | } | |
50c77e5d | 2915 | } |
329c1c86 | 2916 | else |
50c77e5d | 2917 | walk_wild (s, output_section_callback, output); |
b6bf44ba | 2918 | |
abe6ac95 AM |
2919 | if (default_common_section == NULL) |
2920 | for (sec = s->section_list; sec != NULL; sec = sec->next) | |
b6bf44ba AM |
2921 | if (sec->spec.name != NULL && strcmp (sec->spec.name, "COMMON") == 0) |
2922 | { | |
2923 | /* Remember the section that common is going to in case we | |
b7a26f91 | 2924 | later get something which doesn't know where to put it. */ |
b6bf44ba | 2925 | default_common_section = output; |
abe6ac95 | 2926 | break; |
b6bf44ba | 2927 | } |
252b5132 RH |
2928 | } |
2929 | ||
b34976b6 | 2930 | /* Return TRUE iff target is the sought target. */ |
08da4cac | 2931 | |
e50d8076 | 2932 | static int |
1579bae1 | 2933 | get_target (const bfd_target *target, void *data) |
e50d8076 | 2934 | { |
1e9cc1c2 | 2935 | const char *sought = (const char *) data; |
5f992e62 | 2936 | |
e50d8076 NC |
2937 | return strcmp (target->name, sought) == 0; |
2938 | } | |
2939 | ||
2940 | /* Like strcpy() but convert to lower case as well. */ | |
08da4cac | 2941 | |
e50d8076 | 2942 | static void |
1579bae1 | 2943 | stricpy (char *dest, char *src) |
e50d8076 NC |
2944 | { |
2945 | char c; | |
5f992e62 | 2946 | |
08da4cac | 2947 | while ((c = *src++) != 0) |
3882b010 | 2948 | *dest++ = TOLOWER (c); |
e50d8076 | 2949 | |
08da4cac | 2950 | *dest = 0; |
e50d8076 NC |
2951 | } |
2952 | ||
396a2467 | 2953 | /* Remove the first occurrence of needle (if any) in haystack |
e50d8076 | 2954 | from haystack. */ |
08da4cac | 2955 | |
e50d8076 | 2956 | static void |
1579bae1 | 2957 | strcut (char *haystack, char *needle) |
e50d8076 NC |
2958 | { |
2959 | haystack = strstr (haystack, needle); | |
5f992e62 | 2960 | |
e50d8076 NC |
2961 | if (haystack) |
2962 | { | |
08da4cac | 2963 | char *src; |
e50d8076 | 2964 | |
08da4cac KH |
2965 | for (src = haystack + strlen (needle); *src;) |
2966 | *haystack++ = *src++; | |
5f992e62 | 2967 | |
08da4cac | 2968 | *haystack = 0; |
e50d8076 NC |
2969 | } |
2970 | } | |
2971 | ||
2972 | /* Compare two target format name strings. | |
2973 | Return a value indicating how "similar" they are. */ | |
08da4cac | 2974 | |
e50d8076 | 2975 | static int |
1579bae1 | 2976 | name_compare (char *first, char *second) |
e50d8076 | 2977 | { |
08da4cac KH |
2978 | char *copy1; |
2979 | char *copy2; | |
2980 | int result; | |
5f992e62 | 2981 | |
1e9cc1c2 NC |
2982 | copy1 = (char *) xmalloc (strlen (first) + 1); |
2983 | copy2 = (char *) xmalloc (strlen (second) + 1); | |
e50d8076 NC |
2984 | |
2985 | /* Convert the names to lower case. */ | |
2986 | stricpy (copy1, first); | |
2987 | stricpy (copy2, second); | |
2988 | ||
1579bae1 | 2989 | /* Remove size and endian strings from the name. */ |
e50d8076 NC |
2990 | strcut (copy1, "big"); |
2991 | strcut (copy1, "little"); | |
2992 | strcut (copy2, "big"); | |
2993 | strcut (copy2, "little"); | |
2994 | ||
2995 | /* Return a value based on how many characters match, | |
2996 | starting from the beginning. If both strings are | |
2997 | the same then return 10 * their length. */ | |
08da4cac KH |
2998 | for (result = 0; copy1[result] == copy2[result]; result++) |
2999 | if (copy1[result] == 0) | |
e50d8076 NC |
3000 | { |
3001 | result *= 10; | |
3002 | break; | |
3003 | } | |
5f992e62 | 3004 | |
e50d8076 NC |
3005 | free (copy1); |
3006 | free (copy2); | |
3007 | ||
3008 | return result; | |
3009 | } | |
3010 | ||
3011 | /* Set by closest_target_match() below. */ | |
08da4cac | 3012 | static const bfd_target *winner; |
e50d8076 NC |
3013 | |
3014 | /* Scan all the valid bfd targets looking for one that has the endianness | |
3015 | requirement that was specified on the command line, and is the nearest | |
3016 | match to the original output target. */ | |
08da4cac | 3017 | |
e50d8076 | 3018 | static int |
1579bae1 | 3019 | closest_target_match (const bfd_target *target, void *data) |
e50d8076 | 3020 | { |
1e9cc1c2 | 3021 | const bfd_target *original = (const bfd_target *) data; |
5f992e62 | 3022 | |
08da4cac KH |
3023 | if (command_line.endian == ENDIAN_BIG |
3024 | && target->byteorder != BFD_ENDIAN_BIG) | |
e50d8076 | 3025 | return 0; |
5f992e62 | 3026 | |
08da4cac KH |
3027 | if (command_line.endian == ENDIAN_LITTLE |
3028 | && target->byteorder != BFD_ENDIAN_LITTLE) | |
e50d8076 NC |
3029 | return 0; |
3030 | ||
3031 | /* Must be the same flavour. */ | |
3032 | if (target->flavour != original->flavour) | |
3033 | return 0; | |
3034 | ||
de7dd2bd | 3035 | /* Ignore generic big and little endian elf vectors. */ |
967928e9 | 3036 | if (strcmp (target->name, "elf32-big") == 0 |
de7dd2bd NC |
3037 | || strcmp (target->name, "elf64-big") == 0 |
3038 | || strcmp (target->name, "elf32-little") == 0 | |
3039 | || strcmp (target->name, "elf64-little") == 0) | |
3040 | return 0; | |
3041 | ||
e50d8076 NC |
3042 | /* If we have not found a potential winner yet, then record this one. */ |
3043 | if (winner == NULL) | |
3044 | { | |
3045 | winner = target; | |
3046 | return 0; | |
3047 | } | |
3048 | ||
3049 | /* Oh dear, we now have two potential candidates for a successful match. | |
4de2d33d | 3050 | Compare their names and choose the better one. */ |
d1778b88 AM |
3051 | if (name_compare (target->name, original->name) |
3052 | > name_compare (winner->name, original->name)) | |
e50d8076 NC |
3053 | winner = target; |
3054 | ||
3055 | /* Keep on searching until wqe have checked them all. */ | |
3056 | return 0; | |
3057 | } | |
3058 | ||
3059 | /* Return the BFD target format of the first input file. */ | |
08da4cac | 3060 | |
e50d8076 | 3061 | static char * |
1579bae1 | 3062 | get_first_input_target (void) |
e50d8076 | 3063 | { |
08da4cac | 3064 | char *target = NULL; |
e50d8076 NC |
3065 | |
3066 | LANG_FOR_EACH_INPUT_STATEMENT (s) | |
3067 | { | |
3068 | if (s->header.type == lang_input_statement_enum | |
66be1055 | 3069 | && s->flags.real) |
e50d8076 NC |
3070 | { |
3071 | ldfile_open_file (s); | |
5f992e62 | 3072 | |
e50d8076 NC |
3073 | if (s->the_bfd != NULL |
3074 | && bfd_check_format (s->the_bfd, bfd_object)) | |
3075 | { | |
3076 | target = bfd_get_target (s->the_bfd); | |
5f992e62 | 3077 | |
e50d8076 NC |
3078 | if (target != NULL) |
3079 | break; | |
3080 | } | |
3081 | } | |
3082 | } | |
5f992e62 | 3083 | |
e50d8076 NC |
3084 | return target; |
3085 | } | |
3086 | ||
599917b8 | 3087 | const char * |
1579bae1 | 3088 | lang_get_output_target (void) |
599917b8 JJ |
3089 | { |
3090 | const char *target; | |
3091 | ||
3092 | /* Has the user told us which output format to use? */ | |
1579bae1 | 3093 | if (output_target != NULL) |
599917b8 JJ |
3094 | return output_target; |
3095 | ||
3096 | /* No - has the current target been set to something other than | |
3097 | the default? */ | |
30824704 | 3098 | if (current_target != default_target && current_target != NULL) |
599917b8 JJ |
3099 | return current_target; |
3100 | ||
3101 | /* No - can we determine the format of the first input file? */ | |
3102 | target = get_first_input_target (); | |
3103 | if (target != NULL) | |
3104 | return target; | |
3105 | ||
3106 | /* Failed - use the default output target. */ | |
3107 | return default_target; | |
3108 | } | |
3109 | ||
252b5132 RH |
3110 | /* Open the output file. */ |
3111 | ||
f13a99db | 3112 | static void |
1579bae1 | 3113 | open_output (const char *name) |
252b5132 | 3114 | { |
599917b8 | 3115 | output_target = lang_get_output_target (); |
5f992e62 | 3116 | |
08da4cac KH |
3117 | /* Has the user requested a particular endianness on the command |
3118 | line? */ | |
e50d8076 NC |
3119 | if (command_line.endian != ENDIAN_UNSET) |
3120 | { | |
e50d8076 | 3121 | /* Get the chosen target. */ |
4212b42d AM |
3122 | const bfd_target *target |
3123 | = bfd_iterate_over_targets (get_target, (void *) output_target); | |
e50d8076 | 3124 | |
c13b1b77 NC |
3125 | /* If the target is not supported, we cannot do anything. */ |
3126 | if (target != NULL) | |
e50d8076 | 3127 | { |
4212b42d AM |
3128 | enum bfd_endian desired_endian; |
3129 | ||
c13b1b77 NC |
3130 | if (command_line.endian == ENDIAN_BIG) |
3131 | desired_endian = BFD_ENDIAN_BIG; | |
e50d8076 | 3132 | else |
c13b1b77 | 3133 | desired_endian = BFD_ENDIAN_LITTLE; |
5f992e62 AM |
3134 | |
3135 | /* See if the target has the wrong endianness. This should | |
3136 | not happen if the linker script has provided big and | |
3137 | little endian alternatives, but some scrips don't do | |
3138 | this. */ | |
c13b1b77 | 3139 | if (target->byteorder != desired_endian) |
e50d8076 | 3140 | { |
c13b1b77 NC |
3141 | /* If it does, then see if the target provides |
3142 | an alternative with the correct endianness. */ | |
3143 | if (target->alternative_target != NULL | |
3144 | && (target->alternative_target->byteorder == desired_endian)) | |
3145 | output_target = target->alternative_target->name; | |
e50d8076 | 3146 | else |
c13b1b77 | 3147 | { |
5f992e62 AM |
3148 | /* Try to find a target as similar as possible to |
3149 | the default target, but which has the desired | |
3150 | endian characteristic. */ | |
4212b42d AM |
3151 | bfd_iterate_over_targets (closest_target_match, |
3152 | (void *) target); | |
5f992e62 AM |
3153 | |
3154 | /* Oh dear - we could not find any targets that | |
3155 | satisfy our requirements. */ | |
c13b1b77 | 3156 | if (winner == NULL) |
6feb9908 AM |
3157 | einfo (_("%P: warning: could not find any targets" |
3158 | " that match endianness requirement\n")); | |
c13b1b77 NC |
3159 | else |
3160 | output_target = winner->name; | |
3161 | } | |
e50d8076 NC |
3162 | } |
3163 | } | |
252b5132 | 3164 | } |
5f992e62 | 3165 | |
f13a99db | 3166 | link_info.output_bfd = bfd_openw (name, output_target); |
252b5132 | 3167 | |
f13a99db | 3168 | if (link_info.output_bfd == NULL) |
252b5132 RH |
3169 | { |
3170 | if (bfd_get_error () == bfd_error_invalid_target) | |
df5f2391 | 3171 | einfo (_("%F%P: target %s not found\n"), output_target); |
e50d8076 | 3172 | |
df5f2391 | 3173 | einfo (_("%F%P: cannot open output file %s: %E\n"), name); |
252b5132 RH |
3174 | } |
3175 | ||
b34976b6 | 3176 | delete_output_file_on_failure = TRUE; |
252b5132 | 3177 | |
0aa7f586 | 3178 | if (!bfd_set_format (link_info.output_bfd, bfd_object)) |
df5f2391 | 3179 | einfo (_("%F%P: %s: can not make object file: %E\n"), name); |
0aa7f586 | 3180 | if (!bfd_set_arch_mach (link_info.output_bfd, |
252b5132 RH |
3181 | ldfile_output_architecture, |
3182 | ldfile_output_machine)) | |
df5f2391 | 3183 | einfo (_("%F%P: %s: can not set architecture: %E\n"), name); |
252b5132 | 3184 | |
f13a99db | 3185 | link_info.hash = bfd_link_hash_table_create (link_info.output_bfd); |
1579bae1 | 3186 | if (link_info.hash == NULL) |
df5f2391 | 3187 | einfo (_("%F%P: can not create hash table: %E\n")); |
252b5132 | 3188 | |
f13a99db | 3189 | bfd_set_gp_size (link_info.output_bfd, g_switch_value); |
252b5132 RH |
3190 | } |
3191 | ||
252b5132 | 3192 | static void |
1579bae1 | 3193 | ldlang_open_output (lang_statement_union_type *statement) |
252b5132 RH |
3194 | { |
3195 | switch (statement->header.type) | |
3196 | { | |
3197 | case lang_output_statement_enum: | |
f13a99db AM |
3198 | ASSERT (link_info.output_bfd == NULL); |
3199 | open_output (statement->output_statement.name); | |
252b5132 | 3200 | ldemul_set_output_arch (); |
0e1862bb L |
3201 | if (config.magic_demand_paged |
3202 | && !bfd_link_relocatable (&link_info)) | |
f13a99db | 3203 | link_info.output_bfd->flags |= D_PAGED; |
252b5132 | 3204 | else |
f13a99db | 3205 | link_info.output_bfd->flags &= ~D_PAGED; |
252b5132 | 3206 | if (config.text_read_only) |
f13a99db | 3207 | link_info.output_bfd->flags |= WP_TEXT; |
252b5132 | 3208 | else |
f13a99db | 3209 | link_info.output_bfd->flags &= ~WP_TEXT; |
252b5132 | 3210 | if (link_info.traditional_format) |
f13a99db | 3211 | link_info.output_bfd->flags |= BFD_TRADITIONAL_FORMAT; |
252b5132 | 3212 | else |
f13a99db | 3213 | link_info.output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; |
252b5132 RH |
3214 | break; |
3215 | ||
3216 | case lang_target_statement_enum: | |
3217 | current_target = statement->target_statement.target; | |
3218 | break; | |
3219 | default: | |
3220 | break; | |
3221 | } | |
3222 | } | |
3223 | ||
e5caa5e0 AM |
3224 | static void |
3225 | init_opb (void) | |
3226 | { | |
3227 | unsigned x = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, | |
3228 | ldfile_output_machine); | |
3229 | opb_shift = 0; | |
3230 | if (x > 1) | |
3231 | while ((x & 1) == 0) | |
3232 | { | |
3233 | x >>= 1; | |
3234 | ++opb_shift; | |
3235 | } | |
3236 | ASSERT (x == 1); | |
3237 | } | |
3238 | ||
252b5132 RH |
3239 | /* Open all the input files. */ |
3240 | ||
486329aa AM |
3241 | enum open_bfd_mode |
3242 | { | |
3243 | OPEN_BFD_NORMAL = 0, | |
3244 | OPEN_BFD_FORCE = 1, | |
3245 | OPEN_BFD_RESCAN = 2 | |
3246 | }; | |
9e2278f5 AM |
3247 | #ifdef ENABLE_PLUGINS |
3248 | static lang_input_statement_type *plugin_insert = NULL; | |
3249 | #endif | |
486329aa | 3250 | |
252b5132 | 3251 | static void |
486329aa | 3252 | open_input_bfds (lang_statement_union_type *s, enum open_bfd_mode mode) |
252b5132 | 3253 | { |
1579bae1 | 3254 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
3255 | { |
3256 | switch (s->header.type) | |
3257 | { | |
3258 | case lang_constructors_statement_enum: | |
486329aa | 3259 | open_input_bfds (constructor_list.head, mode); |
252b5132 RH |
3260 | break; |
3261 | case lang_output_section_statement_enum: | |
486329aa | 3262 | open_input_bfds (s->output_section_statement.children.head, mode); |
252b5132 RH |
3263 | break; |
3264 | case lang_wild_statement_enum: | |
08da4cac | 3265 | /* Maybe we should load the file's symbols. */ |
486329aa AM |
3266 | if ((mode & OPEN_BFD_RESCAN) == 0 |
3267 | && s->wild_statement.filename | |
97407faf AM |
3268 | && !wildcardp (s->wild_statement.filename) |
3269 | && !archive_path (s->wild_statement.filename)) | |
4a43e768 | 3270 | lookup_name (s->wild_statement.filename); |
486329aa | 3271 | open_input_bfds (s->wild_statement.children.head, mode); |
252b5132 RH |
3272 | break; |
3273 | case lang_group_statement_enum: | |
3274 | { | |
3275 | struct bfd_link_hash_entry *undefs; | |
3276 | ||
3277 | /* We must continually search the entries in the group | |
08da4cac KH |
3278 | until no new symbols are added to the list of undefined |
3279 | symbols. */ | |
252b5132 RH |
3280 | |
3281 | do | |
3282 | { | |
3283 | undefs = link_info.hash->undefs_tail; | |
486329aa AM |
3284 | open_input_bfds (s->group_statement.children.head, |
3285 | mode | OPEN_BFD_FORCE); | |
252b5132 RH |
3286 | } |
3287 | while (undefs != link_info.hash->undefs_tail); | |
3288 | } | |
3289 | break; | |
3290 | case lang_target_statement_enum: | |
3291 | current_target = s->target_statement.target; | |
3292 | break; | |
3293 | case lang_input_statement_enum: | |
66be1055 | 3294 | if (s->input_statement.flags.real) |
252b5132 | 3295 | { |
bde18da4 | 3296 | lang_statement_union_type **os_tail; |
252b5132 | 3297 | lang_statement_list_type add; |
d215621e | 3298 | bfd *abfd; |
252b5132 RH |
3299 | |
3300 | s->input_statement.target = current_target; | |
3301 | ||
3302 | /* If we are being called from within a group, and this | |
afd7a018 AM |
3303 | is an archive which has already been searched, then |
3304 | force it to be researched unless the whole archive | |
d215621e AM |
3305 | has been loaded already. Do the same for a rescan. |
3306 | Likewise reload --as-needed shared libs. */ | |
486329aa | 3307 | if (mode != OPEN_BFD_NORMAL |
9e2278f5 AM |
3308 | #ifdef ENABLE_PLUGINS |
3309 | && ((mode & OPEN_BFD_RESCAN) == 0 | |
3310 | || plugin_insert == NULL) | |
3311 | #endif | |
66be1055 | 3312 | && s->input_statement.flags.loaded |
d215621e AM |
3313 | && (abfd = s->input_statement.the_bfd) != NULL |
3314 | && ((bfd_get_format (abfd) == bfd_archive | |
3315 | && !s->input_statement.flags.whole_archive) | |
3316 | || (bfd_get_format (abfd) == bfd_object | |
3317 | && ((abfd->flags) & DYNAMIC) != 0 | |
3318 | && s->input_statement.flags.add_DT_NEEDED_for_regular | |
e77620a5 | 3319 | && bfd_get_flavour (abfd) == bfd_target_elf_flavour |
0fef4b98 | 3320 | && (elf_dyn_lib_class (abfd) & DYN_AS_NEEDED) != 0))) |
15fc2e13 | 3321 | { |
66be1055 AM |
3322 | s->input_statement.flags.loaded = FALSE; |
3323 | s->input_statement.flags.reload = TRUE; | |
15fc2e13 | 3324 | } |
252b5132 | 3325 | |
bde18da4 | 3326 | os_tail = lang_output_section_statement.tail; |
d1778b88 | 3327 | lang_list_init (&add); |
1276aefa | 3328 | |
0aa7f586 | 3329 | if (!load_symbols (&s->input_statement, &add)) |
b34976b6 | 3330 | config.make_executable = FALSE; |
252b5132 RH |
3331 | |
3332 | if (add.head != NULL) | |
3333 | { | |
bde18da4 AM |
3334 | /* If this was a script with output sections then |
3335 | tack any added statements on to the end of the | |
3336 | list. This avoids having to reorder the output | |
3337 | section statement list. Very likely the user | |
3338 | forgot -T, and whatever we do here will not meet | |
3339 | naive user expectations. */ | |
3340 | if (os_tail != lang_output_section_statement.tail) | |
3341 | { | |
3342 | einfo (_("%P: warning: %s contains output sections;" | |
3343 | " did you forget -T?\n"), | |
3344 | s->input_statement.filename); | |
3345 | *stat_ptr->tail = add.head; | |
3346 | stat_ptr->tail = add.tail; | |
3347 | } | |
3348 | else | |
3349 | { | |
3350 | *add.tail = s->header.next; | |
3351 | s->header.next = add.head; | |
3352 | } | |
252b5132 RH |
3353 | } |
3354 | } | |
9e2278f5 AM |
3355 | #ifdef ENABLE_PLUGINS |
3356 | /* If we have found the point at which a plugin added new | |
3357 | files, clear plugin_insert to enable archive rescan. */ | |
3358 | if (&s->input_statement == plugin_insert) | |
3359 | plugin_insert = NULL; | |
3360 | #endif | |
252b5132 | 3361 | break; |
e759c116 | 3362 | case lang_assignment_statement_enum: |
165f707a | 3363 | if (s->assignment_statement.exp->type.node_class != etree_assert) |
01554a74 | 3364 | exp_fold_tree_no_dot (s->assignment_statement.exp); |
e759c116 | 3365 | break; |
252b5132 RH |
3366 | default: |
3367 | break; | |
3368 | } | |
3369 | } | |
c4b78195 NC |
3370 | |
3371 | /* Exit if any of the files were missing. */ | |
66be1055 | 3372 | if (input_flags.missing_file) |
c4b78195 | 3373 | einfo ("%F"); |
252b5132 RH |
3374 | } |
3375 | ||
08da4cac | 3376 | /* Add the supplied name to the symbol table as an undefined reference. |
fcf0e35b AM |
3377 | This is a two step process as the symbol table doesn't even exist at |
3378 | the time the ld command line is processed. First we put the name | |
3379 | on a list, then, once the output file has been opened, transfer the | |
3380 | name to the symbol table. */ | |
3381 | ||
e3e942e9 | 3382 | typedef struct bfd_sym_chain ldlang_undef_chain_list_type; |
252b5132 | 3383 | |
e3e942e9 | 3384 | #define ldlang_undef_chain_list_head entry_symbol.next |
252b5132 RH |
3385 | |
3386 | void | |
24898b70 | 3387 | ldlang_add_undef (const char *const name, bfd_boolean cmdline) |
252b5132 | 3388 | { |
24898b70 | 3389 | ldlang_undef_chain_list_type *new_undef; |
252b5132 | 3390 | |
24898b70 AM |
3391 | undef_from_cmdline = undef_from_cmdline || cmdline; |
3392 | new_undef = (ldlang_undef_chain_list_type *) stat_alloc (sizeof (*new_undef)); | |
d3ce72d0 NC |
3393 | new_undef->next = ldlang_undef_chain_list_head; |
3394 | ldlang_undef_chain_list_head = new_undef; | |
252b5132 | 3395 | |
d3ce72d0 | 3396 | new_undef->name = xstrdup (name); |
fcf0e35b | 3397 | |
f13a99db | 3398 | if (link_info.output_bfd != NULL) |
d3ce72d0 | 3399 | insert_undefined (new_undef->name); |
fcf0e35b AM |
3400 | } |
3401 | ||
3402 | /* Insert NAME as undefined in the symbol table. */ | |
3403 | ||
3404 | static void | |
1579bae1 | 3405 | insert_undefined (const char *name) |
fcf0e35b AM |
3406 | { |
3407 | struct bfd_link_hash_entry *h; | |
3408 | ||
b34976b6 | 3409 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, FALSE, TRUE); |
1579bae1 | 3410 | if (h == NULL) |
df5f2391 | 3411 | einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n")); |
fcf0e35b AM |
3412 | if (h->type == bfd_link_hash_new) |
3413 | { | |
3414 | h->type = bfd_link_hash_undefined; | |
3415 | h->u.undef.abfd = NULL; | |
94d401b8 | 3416 | h->non_ir_ref_regular = TRUE; |
80070c0d MR |
3417 | if (is_elf_hash_table (link_info.hash)) |
3418 | ((struct elf_link_hash_entry *) h)->mark = 1; | |
fcf0e35b AM |
3419 | bfd_link_add_undef (link_info.hash, h); |
3420 | } | |
252b5132 RH |
3421 | } |
3422 | ||
3423 | /* Run through the list of undefineds created above and place them | |
3424 | into the linker hash table as undefined symbols belonging to the | |
08da4cac KH |
3425 | script file. */ |
3426 | ||
252b5132 | 3427 | static void |
1579bae1 | 3428 | lang_place_undefineds (void) |
252b5132 RH |
3429 | { |
3430 | ldlang_undef_chain_list_type *ptr; | |
3431 | ||
1579bae1 AM |
3432 | for (ptr = ldlang_undef_chain_list_head; ptr != NULL; ptr = ptr->next) |
3433 | insert_undefined (ptr->name); | |
252b5132 RH |
3434 | } |
3435 | ||
0a618243 AB |
3436 | /* Structure used to build the list of symbols that the user has required |
3437 | be defined. */ | |
3438 | ||
3439 | struct require_defined_symbol | |
3440 | { | |
3441 | const char *name; | |
3442 | struct require_defined_symbol *next; | |
3443 | }; | |
3444 | ||
3445 | /* The list of symbols that the user has required be defined. */ | |
3446 | ||
3447 | static struct require_defined_symbol *require_defined_symbol_list; | |
3448 | ||
3449 | /* Add a new symbol NAME to the list of symbols that are required to be | |
3450 | defined. */ | |
3451 | ||
3452 | void | |
0aa7f586 | 3453 | ldlang_add_require_defined (const char *const name) |
0a618243 AB |
3454 | { |
3455 | struct require_defined_symbol *ptr; | |
3456 | ||
3457 | ldlang_add_undef (name, TRUE); | |
3458 | ptr = (struct require_defined_symbol *) stat_alloc (sizeof (*ptr)); | |
3459 | ptr->next = require_defined_symbol_list; | |
3460 | ptr->name = strdup (name); | |
3461 | require_defined_symbol_list = ptr; | |
3462 | } | |
3463 | ||
3464 | /* Check that all symbols the user required to be defined, are defined, | |
3465 | raise an error if we find a symbol that is not defined. */ | |
3466 | ||
3467 | static void | |
3468 | ldlang_check_require_defined_symbols (void) | |
3469 | { | |
3470 | struct require_defined_symbol *ptr; | |
3471 | ||
3472 | for (ptr = require_defined_symbol_list; ptr != NULL; ptr = ptr->next) | |
3473 | { | |
3474 | struct bfd_link_hash_entry *h; | |
3475 | ||
3476 | h = bfd_link_hash_lookup (link_info.hash, ptr->name, | |
0aa7f586 | 3477 | FALSE, FALSE, TRUE); |
0a618243 | 3478 | if (h == NULL |
0aa7f586 AM |
3479 | || (h->type != bfd_link_hash_defined |
3480 | && h->type != bfd_link_hash_defweak)) | |
df5f2391 | 3481 | einfo(_("%X%P: required symbol `%s' not defined\n"), ptr->name); |
0a618243 AB |
3482 | } |
3483 | } | |
3484 | ||
0841712e JJ |
3485 | /* Check for all readonly or some readwrite sections. */ |
3486 | ||
3487 | static void | |
6feb9908 AM |
3488 | check_input_sections |
3489 | (lang_statement_union_type *s, | |
3490 | lang_output_section_statement_type *output_section_statement) | |
0841712e JJ |
3491 | { |
3492 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) | |
3493 | { | |
3494 | switch (s->header.type) | |
967928e9 AM |
3495 | { |
3496 | case lang_wild_statement_enum: | |
3497 | walk_wild (&s->wild_statement, check_section_callback, | |
3498 | output_section_statement); | |
0aa7f586 | 3499 | if (!output_section_statement->all_input_readonly) |
967928e9 AM |
3500 | return; |
3501 | break; | |
3502 | case lang_constructors_statement_enum: | |
3503 | check_input_sections (constructor_list.head, | |
3504 | output_section_statement); | |
0aa7f586 | 3505 | if (!output_section_statement->all_input_readonly) |
967928e9 AM |
3506 | return; |
3507 | break; | |
3508 | case lang_group_statement_enum: | |
3509 | check_input_sections (s->group_statement.children.head, | |
3510 | output_section_statement); | |
0aa7f586 | 3511 | if (!output_section_statement->all_input_readonly) |
967928e9 AM |
3512 | return; |
3513 | break; | |
3514 | default: | |
3515 | break; | |
3516 | } | |
0841712e JJ |
3517 | } |
3518 | } | |
3519 | ||
bcaa7b3e L |
3520 | /* Update wildcard statements if needed. */ |
3521 | ||
3522 | static void | |
3523 | update_wild_statements (lang_statement_union_type *s) | |
3524 | { | |
3525 | struct wildcard_list *sec; | |
3526 | ||
3527 | switch (sort_section) | |
3528 | { | |
3529 | default: | |
3530 | FAIL (); | |
3531 | ||
3532 | case none: | |
3533 | break; | |
3534 | ||
3535 | case by_name: | |
3536 | case by_alignment: | |
3537 | for (; s != NULL; s = s->header.next) | |
3538 | { | |
3539 | switch (s->header.type) | |
3540 | { | |
3541 | default: | |
3542 | break; | |
3543 | ||
3544 | case lang_wild_statement_enum: | |
0d0999db L |
3545 | for (sec = s->wild_statement.section_list; sec != NULL; |
3546 | sec = sec->next) | |
bcaa7b3e L |
3547 | { |
3548 | switch (sec->spec.sorted) | |
3549 | { | |
3550 | case none: | |
3551 | sec->spec.sorted = sort_section; | |
3552 | break; | |
3553 | case by_name: | |
3554 | if (sort_section == by_alignment) | |
3555 | sec->spec.sorted = by_name_alignment; | |
3556 | break; | |
3557 | case by_alignment: | |
3558 | if (sort_section == by_name) | |
3559 | sec->spec.sorted = by_alignment_name; | |
3560 | break; | |
3561 | default: | |
3562 | break; | |
3563 | } | |
3564 | } | |
3565 | break; | |
3566 | ||
3567 | case lang_constructors_statement_enum: | |
3568 | update_wild_statements (constructor_list.head); | |
3569 | break; | |
3570 | ||
3571 | case lang_output_section_statement_enum: | |
eda680f8 L |
3572 | /* Don't sort .init/.fini sections. */ |
3573 | if (strcmp (s->output_section_statement.name, ".init") != 0 | |
3574 | && strcmp (s->output_section_statement.name, ".fini") != 0) | |
3575 | update_wild_statements | |
3576 | (s->output_section_statement.children.head); | |
bcaa7b3e L |
3577 | break; |
3578 | ||
3579 | case lang_group_statement_enum: | |
3580 | update_wild_statements (s->group_statement.children.head); | |
3581 | break; | |
3582 | } | |
3583 | } | |
3584 | break; | |
3585 | } | |
3586 | } | |
3587 | ||
396a2467 | 3588 | /* Open input files and attach to output sections. */ |
08da4cac | 3589 | |
252b5132 | 3590 | static void |
1579bae1 AM |
3591 | map_input_to_output_sections |
3592 | (lang_statement_union_type *s, const char *target, | |
afd7a018 | 3593 | lang_output_section_statement_type *os) |
252b5132 | 3594 | { |
1579bae1 | 3595 | for (; s != NULL; s = s->header.next) |
252b5132 | 3596 | { |
dfa7b0b8 AM |
3597 | lang_output_section_statement_type *tos; |
3598 | flagword flags; | |
3599 | ||
252b5132 RH |
3600 | switch (s->header.type) |
3601 | { | |
252b5132 | 3602 | case lang_wild_statement_enum: |
afd7a018 | 3603 | wild (&s->wild_statement, target, os); |
abc6ab0a | 3604 | break; |
252b5132 RH |
3605 | case lang_constructors_statement_enum: |
3606 | map_input_to_output_sections (constructor_list.head, | |
3607 | target, | |
afd7a018 | 3608 | os); |
252b5132 RH |
3609 | break; |
3610 | case lang_output_section_statement_enum: | |
dfa7b0b8 AM |
3611 | tos = &s->output_section_statement; |
3612 | if (tos->constraint != 0) | |
0841712e | 3613 | { |
dfa7b0b8 AM |
3614 | if (tos->constraint != ONLY_IF_RW |
3615 | && tos->constraint != ONLY_IF_RO) | |
0841712e | 3616 | break; |
dfa7b0b8 AM |
3617 | tos->all_input_readonly = TRUE; |
3618 | check_input_sections (tos->children.head, tos); | |
3619 | if (tos->all_input_readonly != (tos->constraint == ONLY_IF_RO)) | |
0841712e | 3620 | { |
dfa7b0b8 | 3621 | tos->constraint = -1; |
0841712e JJ |
3622 | break; |
3623 | } | |
3624 | } | |
dfa7b0b8 | 3625 | map_input_to_output_sections (tos->children.head, |
252b5132 | 3626 | target, |
dfa7b0b8 | 3627 | tos); |
a431bc2e AM |
3628 | break; |
3629 | case lang_output_statement_enum: | |
252b5132 RH |
3630 | break; |
3631 | case lang_target_statement_enum: | |
3632 | target = s->target_statement.target; | |
3633 | break; | |
3634 | case lang_group_statement_enum: | |
3635 | map_input_to_output_sections (s->group_statement.children.head, | |
3636 | target, | |
afd7a018 | 3637 | os); |
252b5132 | 3638 | break; |
384d938f NS |
3639 | case lang_data_statement_enum: |
3640 | /* Make sure that any sections mentioned in the expression | |
3641 | are initialized. */ | |
3642 | exp_init_os (s->data_statement.exp); | |
2e76e85a AM |
3643 | /* The output section gets CONTENTS, ALLOC and LOAD, but |
3644 | these may be overridden by the script. */ | |
dfa7b0b8 AM |
3645 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD; |
3646 | switch (os->sectype) | |
3647 | { | |
3648 | case normal_section: | |
3649 | case overlay_section: | |
3650 | break; | |
3651 | case noalloc_section: | |
3652 | flags = SEC_HAS_CONTENTS; | |
3653 | break; | |
3654 | case noload_section: | |
f4eaaf7f AM |
3655 | if (bfd_get_flavour (link_info.output_bfd) |
3656 | == bfd_target_elf_flavour) | |
3657 | flags = SEC_NEVER_LOAD | SEC_ALLOC; | |
3658 | else | |
3659 | flags = SEC_NEVER_LOAD | SEC_HAS_CONTENTS; | |
dfa7b0b8 AM |
3660 | break; |
3661 | } | |
a431bc2e | 3662 | if (os->bfd_section == NULL) |
dfa7b0b8 | 3663 | init_os (os, flags); |
a431bc2e AM |
3664 | else |
3665 | os->bfd_section->flags |= flags; | |
afd7a018 | 3666 | break; |
252b5132 | 3667 | case lang_input_section_enum: |
e0f6802f AM |
3668 | break; |
3669 | case lang_fill_statement_enum: | |
252b5132 | 3670 | case lang_object_symbols_statement_enum: |
252b5132 RH |
3671 | case lang_reloc_statement_enum: |
3672 | case lang_padding_statement_enum: | |
3673 | case lang_input_statement_enum: | |
afd7a018 | 3674 | if (os != NULL && os->bfd_section == NULL) |
dfa7b0b8 | 3675 | init_os (os, 0); |
252b5132 RH |
3676 | break; |
3677 | case lang_assignment_statement_enum: | |
afd7a018 | 3678 | if (os != NULL && os->bfd_section == NULL) |
dfa7b0b8 | 3679 | init_os (os, 0); |
252b5132 RH |
3680 | |
3681 | /* Make sure that any sections mentioned in the assignment | |
08da4cac | 3682 | are initialized. */ |
252b5132 RH |
3683 | exp_init_os (s->assignment_statement.exp); |
3684 | break; | |
252b5132 | 3685 | case lang_address_statement_enum: |
a431bc2e AM |
3686 | /* Mark the specified section with the supplied address. |
3687 | If this section was actually a segment marker, then the | |
3688 | directive is ignored if the linker script explicitly | |
3689 | processed the segment marker. Originally, the linker | |
3690 | treated segment directives (like -Ttext on the | |
3691 | command-line) as section directives. We honor the | |
370dfff4 | 3692 | section directive semantics for backwards compatibility; |
a431bc2e AM |
3693 | linker scripts that do not specifically check for |
3694 | SEGMENT_START automatically get the old semantics. */ | |
329c1c86 | 3695 | if (!s->address_statement.segment |
ba916c8a MM |
3696 | || !s->address_statement.segment->used) |
3697 | { | |
dfa7b0b8 AM |
3698 | const char *name = s->address_statement.section_name; |
3699 | ||
3700 | /* Create the output section statement here so that | |
3701 | orphans with a set address will be placed after other | |
3702 | script sections. If we let the orphan placement code | |
3703 | place them in amongst other sections then the address | |
3704 | will affect following script sections, which is | |
3705 | likely to surprise naive users. */ | |
3706 | tos = lang_output_section_statement_lookup (name, 0, TRUE); | |
3707 | tos->addr_tree = s->address_statement.address; | |
3708 | if (tos->bfd_section == NULL) | |
3709 | init_os (tos, 0); | |
ba916c8a | 3710 | } |
252b5132 | 3711 | break; |
53d25da6 AM |
3712 | case lang_insert_statement_enum: |
3713 | break; | |
3714 | } | |
3715 | } | |
3716 | } | |
3717 | ||
3718 | /* An insert statement snips out all the linker statements from the | |
3719 | start of the list and places them after the output section | |
3720 | statement specified by the insert. This operation is complicated | |
3721 | by the fact that we keep a doubly linked list of output section | |
3722 | statements as well as the singly linked list of all statements. */ | |
3723 | ||
3724 | static void | |
3725 | process_insert_statements (void) | |
3726 | { | |
3727 | lang_statement_union_type **s; | |
3728 | lang_output_section_statement_type *first_os = NULL; | |
3729 | lang_output_section_statement_type *last_os = NULL; | |
66c103b7 | 3730 | lang_output_section_statement_type *os; |
53d25da6 AM |
3731 | |
3732 | /* "start of list" is actually the statement immediately after | |
3733 | the special abs_section output statement, so that it isn't | |
3734 | reordered. */ | |
3735 | s = &lang_output_section_statement.head; | |
3736 | while (*(s = &(*s)->header.next) != NULL) | |
3737 | { | |
3738 | if ((*s)->header.type == lang_output_section_statement_enum) | |
3739 | { | |
3740 | /* Keep pointers to the first and last output section | |
3741 | statement in the sequence we may be about to move. */ | |
d2ae7be0 AM |
3742 | os = &(*s)->output_section_statement; |
3743 | ||
3744 | ASSERT (last_os == NULL || last_os->next == os); | |
3745 | last_os = os; | |
66c103b7 AM |
3746 | |
3747 | /* Set constraint negative so that lang_output_section_find | |
3748 | won't match this output section statement. At this | |
3749 | stage in linking constraint has values in the range | |
3750 | [-1, ONLY_IN_RW]. */ | |
3751 | last_os->constraint = -2 - last_os->constraint; | |
53d25da6 AM |
3752 | if (first_os == NULL) |
3753 | first_os = last_os; | |
3754 | } | |
3755 | else if ((*s)->header.type == lang_insert_statement_enum) | |
3756 | { | |
3757 | lang_insert_statement_type *i = &(*s)->insert_statement; | |
3758 | lang_output_section_statement_type *where; | |
53d25da6 AM |
3759 | lang_statement_union_type **ptr; |
3760 | lang_statement_union_type *first; | |
3761 | ||
3762 | where = lang_output_section_find (i->where); | |
3763 | if (where != NULL && i->is_before) | |
3764 | { | |
967928e9 | 3765 | do |
53d25da6 | 3766 | where = where->prev; |
66c103b7 | 3767 | while (where != NULL && where->constraint < 0); |
53d25da6 AM |
3768 | } |
3769 | if (where == NULL) | |
3770 | { | |
66c103b7 AM |
3771 | einfo (_("%F%P: %s not found for insert\n"), i->where); |
3772 | return; | |
53d25da6 AM |
3773 | } |
3774 | ||
3775 | /* Deal with reordering the output section statement list. */ | |
3776 | if (last_os != NULL) | |
3777 | { | |
3778 | asection *first_sec, *last_sec; | |
29183214 | 3779 | struct lang_output_section_statement_struct **next; |
53d25da6 AM |
3780 | |
3781 | /* Snip out the output sections we are moving. */ | |
3782 | first_os->prev->next = last_os->next; | |
3783 | if (last_os->next == NULL) | |
29183214 L |
3784 | { |
3785 | next = &first_os->prev->next; | |
3786 | lang_output_section_statement.tail | |
3787 | = (lang_statement_union_type **) next; | |
3788 | } | |
53d25da6 AM |
3789 | else |
3790 | last_os->next->prev = first_os->prev; | |
3791 | /* Add them in at the new position. */ | |
3792 | last_os->next = where->next; | |
3793 | if (where->next == NULL) | |
29183214 L |
3794 | { |
3795 | next = &last_os->next; | |
3796 | lang_output_section_statement.tail | |
3797 | = (lang_statement_union_type **) next; | |
3798 | } | |
53d25da6 AM |
3799 | else |
3800 | where->next->prev = last_os; | |
3801 | first_os->prev = where; | |
3802 | where->next = first_os; | |
3803 | ||
3804 | /* Move the bfd sections in the same way. */ | |
3805 | first_sec = NULL; | |
3806 | last_sec = NULL; | |
3807 | for (os = first_os; os != NULL; os = os->next) | |
3808 | { | |
66c103b7 | 3809 | os->constraint = -2 - os->constraint; |
53d25da6 AM |
3810 | if (os->bfd_section != NULL |
3811 | && os->bfd_section->owner != NULL) | |
3812 | { | |
3813 | last_sec = os->bfd_section; | |
3814 | if (first_sec == NULL) | |
3815 | first_sec = last_sec; | |
3816 | } | |
3817 | if (os == last_os) | |
3818 | break; | |
3819 | } | |
3820 | if (last_sec != NULL) | |
3821 | { | |
3822 | asection *sec = where->bfd_section; | |
3823 | if (sec == NULL) | |
3824 | sec = output_prev_sec_find (where); | |
3825 | ||
3826 | /* The place we want to insert must come after the | |
3827 | sections we are moving. So if we find no | |
3828 | section or if the section is the same as our | |
3829 | last section, then no move is needed. */ | |
3830 | if (sec != NULL && sec != last_sec) | |
3831 | { | |
3832 | /* Trim them off. */ | |
3833 | if (first_sec->prev != NULL) | |
3834 | first_sec->prev->next = last_sec->next; | |
3835 | else | |
f13a99db | 3836 | link_info.output_bfd->sections = last_sec->next; |
53d25da6 AM |
3837 | if (last_sec->next != NULL) |
3838 | last_sec->next->prev = first_sec->prev; | |
3839 | else | |
f13a99db | 3840 | link_info.output_bfd->section_last = first_sec->prev; |
53d25da6 AM |
3841 | /* Add back. */ |
3842 | last_sec->next = sec->next; | |
3843 | if (sec->next != NULL) | |
3844 | sec->next->prev = last_sec; | |
3845 | else | |
f13a99db | 3846 | link_info.output_bfd->section_last = last_sec; |
53d25da6 AM |
3847 | first_sec->prev = sec; |
3848 | sec->next = first_sec; | |
3849 | } | |
3850 | } | |
3851 | ||
3852 | first_os = NULL; | |
3853 | last_os = NULL; | |
3854 | } | |
3855 | ||
3856 | ptr = insert_os_after (where); | |
3857 | /* Snip everything after the abs_section output statement we | |
3858 | know is at the start of the list, up to and including | |
3859 | the insert statement we are currently processing. */ | |
3860 | first = lang_output_section_statement.head->header.next; | |
3861 | lang_output_section_statement.head->header.next = (*s)->header.next; | |
3862 | /* Add them back where they belong. */ | |
3863 | *s = *ptr; | |
3864 | if (*s == NULL) | |
3865 | statement_list.tail = s; | |
3866 | *ptr = first; | |
3867 | s = &lang_output_section_statement.head; | |
252b5132 RH |
3868 | } |
3869 | } | |
66c103b7 AM |
3870 | |
3871 | /* Undo constraint twiddling. */ | |
3872 | for (os = first_os; os != NULL; os = os->next) | |
3873 | { | |
3874 | os->constraint = -2 - os->constraint; | |
3875 | if (os == last_os) | |
3876 | break; | |
3877 | } | |
252b5132 RH |
3878 | } |
3879 | ||
4bd5a393 AM |
3880 | /* An output section might have been removed after its statement was |
3881 | added. For example, ldemul_before_allocation can remove dynamic | |
3882 | sections if they turn out to be not needed. Clean them up here. */ | |
3883 | ||
8423293d | 3884 | void |
1579bae1 | 3885 | strip_excluded_output_sections (void) |
4bd5a393 | 3886 | { |
afd7a018 | 3887 | lang_output_section_statement_type *os; |
4bd5a393 | 3888 | |
046183de | 3889 | /* Run lang_size_sections (if not already done). */ |
e9ee469a AM |
3890 | if (expld.phase != lang_mark_phase_enum) |
3891 | { | |
3892 | expld.phase = lang_mark_phase_enum; | |
0f99513f | 3893 | expld.dataseg.phase = exp_seg_none; |
e9ee469a AM |
3894 | one_lang_size_sections_pass (NULL, FALSE); |
3895 | lang_reset_memory_regions (); | |
3896 | } | |
3897 | ||
afd7a018 AM |
3898 | for (os = &lang_output_section_statement.head->output_section_statement; |
3899 | os != NULL; | |
3900 | os = os->next) | |
4bd5a393 | 3901 | { |
75ff4589 L |
3902 | asection *output_section; |
3903 | bfd_boolean exclude; | |
4bd5a393 | 3904 | |
66c103b7 | 3905 | if (os->constraint < 0) |
0841712e | 3906 | continue; |
8423293d | 3907 | |
75ff4589 L |
3908 | output_section = os->bfd_section; |
3909 | if (output_section == NULL) | |
8423293d AM |
3910 | continue; |
3911 | ||
32124d5b AM |
3912 | exclude = (output_section->rawsize == 0 |
3913 | && (output_section->flags & SEC_KEEP) == 0 | |
f13a99db | 3914 | && !bfd_section_removed_from_list (link_info.output_bfd, |
32124d5b AM |
3915 | output_section)); |
3916 | ||
3917 | /* Some sections have not yet been sized, notably .gnu.version, | |
3918 | .dynsym, .dynstr and .hash. These all have SEC_LINKER_CREATED | |
3919 | input sections, so don't drop output sections that have such | |
3920 | input sections unless they are also marked SEC_EXCLUDE. */ | |
3921 | if (exclude && output_section->map_head.s != NULL) | |
75ff4589 L |
3922 | { |
3923 | asection *s; | |
8423293d | 3924 | |
32124d5b | 3925 | for (s = output_section->map_head.s; s != NULL; s = s->map_head.s) |
b514e6a5 AM |
3926 | if ((s->flags & SEC_EXCLUDE) == 0 |
3927 | && ((s->flags & SEC_LINKER_CREATED) != 0 | |
3928 | || link_info.emitrelocations)) | |
e9ee469a AM |
3929 | { |
3930 | exclude = FALSE; | |
3931 | break; | |
3932 | } | |
75ff4589 | 3933 | } |
8423293d | 3934 | |
32124d5b | 3935 | if (exclude) |
4bd5a393 | 3936 | { |
e9ee469a AM |
3937 | /* We don't set bfd_section to NULL since bfd_section of the |
3938 | removed output section statement may still be used. */ | |
6d8bf25d | 3939 | if (!os->update_dot) |
74541ad4 | 3940 | os->ignored = TRUE; |
e9ee469a | 3941 | output_section->flags |= SEC_EXCLUDE; |
f13a99db AM |
3942 | bfd_section_list_remove (link_info.output_bfd, output_section); |
3943 | link_info.output_bfd->section_count--; | |
4bd5a393 AM |
3944 | } |
3945 | } | |
18cd5bce AM |
3946 | } |
3947 | ||
3948 | /* Called from ldwrite to clear out asection.map_head and | |
211dc24b | 3949 | asection.map_tail for use as link_orders in ldwrite. */ |
18cd5bce AM |
3950 | |
3951 | void | |
3952 | lang_clear_os_map (void) | |
3953 | { | |
3954 | lang_output_section_statement_type *os; | |
3955 | ||
3956 | if (map_head_is_link_order) | |
3957 | return; | |
3958 | ||
3959 | for (os = &lang_output_section_statement.head->output_section_statement; | |
3960 | os != NULL; | |
3961 | os = os->next) | |
3962 | { | |
3963 | asection *output_section; | |
3964 | ||
3965 | if (os->constraint < 0) | |
3966 | continue; | |
3967 | ||
3968 | output_section = os->bfd_section; | |
3969 | if (output_section == NULL) | |
3970 | continue; | |
3971 | ||
3972 | /* TODO: Don't just junk map_head.s, turn them into link_orders. */ | |
3973 | output_section->map_head.link_order = NULL; | |
3974 | output_section->map_tail.link_order = NULL; | |
3975 | } | |
8423293d AM |
3976 | |
3977 | /* Stop future calls to lang_add_section from messing with map_head | |
3978 | and map_tail link_order fields. */ | |
18cd5bce | 3979 | map_head_is_link_order = TRUE; |
4bd5a393 AM |
3980 | } |
3981 | ||
252b5132 | 3982 | static void |
1579bae1 AM |
3983 | print_output_section_statement |
3984 | (lang_output_section_statement_type *output_section_statement) | |
252b5132 RH |
3985 | { |
3986 | asection *section = output_section_statement->bfd_section; | |
3987 | int len; | |
3988 | ||
3989 | if (output_section_statement != abs_output_section) | |
3990 | { | |
3991 | minfo ("\n%s", output_section_statement->name); | |
3992 | ||
3993 | if (section != NULL) | |
3994 | { | |
3995 | print_dot = section->vma; | |
3996 | ||
3997 | len = strlen (output_section_statement->name); | |
3998 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
3999 | { | |
4000 | print_nl (); | |
4001 | len = 0; | |
4002 | } | |
4003 | while (len < SECTION_NAME_MAP_LENGTH) | |
4004 | { | |
4005 | print_space (); | |
4006 | ++len; | |
4007 | } | |
4008 | ||
953dd97e | 4009 | minfo ("0x%V %W", section->vma, TO_ADDR (section->size)); |
252b5132 | 4010 | |
67f744f3 AM |
4011 | if (section->vma != section->lma) |
4012 | minfo (_(" load address 0x%V"), section->lma); | |
5590fba9 NC |
4013 | |
4014 | if (output_section_statement->update_dot_tree != NULL) | |
4015 | exp_fold_tree (output_section_statement->update_dot_tree, | |
4016 | bfd_abs_section_ptr, &print_dot); | |
252b5132 RH |
4017 | } |
4018 | ||
4019 | print_nl (); | |
4020 | } | |
4021 | ||
4022 | print_statement_list (output_section_statement->children.head, | |
4023 | output_section_statement); | |
4024 | } | |
4025 | ||
4026 | static void | |
1579bae1 AM |
4027 | print_assignment (lang_assignment_statement_type *assignment, |
4028 | lang_output_section_statement_type *output_section) | |
252b5132 | 4029 | { |
3b83e13a NC |
4030 | unsigned int i; |
4031 | bfd_boolean is_dot; | |
afd7a018 | 4032 | etree_type *tree; |
8658f989 | 4033 | asection *osec; |
252b5132 RH |
4034 | |
4035 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
4036 | print_space (); | |
4037 | ||
afd7a018 AM |
4038 | if (assignment->exp->type.node_class == etree_assert) |
4039 | { | |
3b83e13a | 4040 | is_dot = FALSE; |
afd7a018 AM |
4041 | tree = assignment->exp->assert_s.child; |
4042 | } | |
4043 | else | |
4044 | { | |
4045 | const char *dst = assignment->exp->assign.dst; | |
3b83e13a NC |
4046 | |
4047 | is_dot = (dst[0] == '.' && dst[1] == 0); | |
7dd9c6eb AM |
4048 | if (!is_dot) |
4049 | expld.assign_name = dst; | |
afd7a018 AM |
4050 | tree = assignment->exp->assign.src; |
4051 | } | |
4052 | ||
8658f989 AM |
4053 | osec = output_section->bfd_section; |
4054 | if (osec == NULL) | |
4055 | osec = bfd_abs_section_ptr; | |
c05b575a AB |
4056 | |
4057 | if (assignment->exp->type.node_class != etree_provide) | |
4058 | exp_fold_tree (tree, osec, &print_dot); | |
4059 | else | |
4060 | expld.result.valid_p = FALSE; | |
4061 | ||
e9ee469a | 4062 | if (expld.result.valid_p) |
7b17f854 | 4063 | { |
7b17f854 RS |
4064 | bfd_vma value; |
4065 | ||
4194268f AM |
4066 | if (assignment->exp->type.node_class == etree_assert |
4067 | || is_dot | |
4068 | || expld.assign_name != NULL) | |
3b83e13a | 4069 | { |
e9ee469a | 4070 | value = expld.result.value; |
10dbd1f3 | 4071 | |
7542af2a | 4072 | if (expld.result.section != NULL) |
e9ee469a | 4073 | value += expld.result.section->vma; |
7b17f854 | 4074 | |
3b83e13a NC |
4075 | minfo ("0x%V", value); |
4076 | if (is_dot) | |
4077 | print_dot = value; | |
4078 | } | |
4079 | else | |
4080 | { | |
4081 | struct bfd_link_hash_entry *h; | |
4082 | ||
4083 | h = bfd_link_hash_lookup (link_info.hash, assignment->exp->assign.dst, | |
4084 | FALSE, FALSE, TRUE); | |
4085 | if (h) | |
4086 | { | |
10dbd1f3 | 4087 | value = h->u.def.value; |
f37a7048 NS |
4088 | value += h->u.def.section->output_section->vma; |
4089 | value += h->u.def.section->output_offset; | |
3b83e13a NC |
4090 | |
4091 | minfo ("[0x%V]", value); | |
4092 | } | |
4093 | else | |
4094 | minfo ("[unresolved]"); | |
4095 | } | |
7b17f854 | 4096 | } |
252b5132 RH |
4097 | else |
4098 | { | |
c05b575a | 4099 | if (assignment->exp->type.node_class == etree_provide) |
0aa7f586 | 4100 | minfo ("[!provide]"); |
c05b575a | 4101 | else |
0aa7f586 | 4102 | minfo ("*undef* "); |
252b5132 RH |
4103 | #ifdef BFD64 |
4104 | minfo (" "); | |
4105 | #endif | |
4106 | } | |
4194268f | 4107 | expld.assign_name = NULL; |
252b5132 RH |
4108 | |
4109 | minfo (" "); | |
252b5132 | 4110 | exp_print_tree (assignment->exp); |
252b5132 RH |
4111 | print_nl (); |
4112 | } | |
4113 | ||
4114 | static void | |
1579bae1 | 4115 | print_input_statement (lang_input_statement_type *statm) |
252b5132 | 4116 | { |
967928e9 AM |
4117 | if (statm->filename != NULL |
4118 | && (statm->the_bfd == NULL | |
4119 | || (statm->the_bfd->flags & BFD_LINKER_CREATED) == 0)) | |
906e58ca | 4120 | fprintf (config.map_file, "LOAD %s\n", statm->filename); |
252b5132 RH |
4121 | } |
4122 | ||
4123 | /* Print all symbols defined in a particular section. This is called | |
35835446 | 4124 | via bfd_link_hash_traverse, or by print_all_symbols. */ |
252b5132 | 4125 | |
b34976b6 | 4126 | static bfd_boolean |
1579bae1 | 4127 | print_one_symbol (struct bfd_link_hash_entry *hash_entry, void *ptr) |
252b5132 | 4128 | { |
1e9cc1c2 | 4129 | asection *sec = (asection *) ptr; |
252b5132 RH |
4130 | |
4131 | if ((hash_entry->type == bfd_link_hash_defined | |
4132 | || hash_entry->type == bfd_link_hash_defweak) | |
4133 | && sec == hash_entry->u.def.section) | |
4134 | { | |
4135 | int i; | |
4136 | ||
4137 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
4138 | print_space (); | |
4139 | minfo ("0x%V ", | |
4140 | (hash_entry->u.def.value | |
4141 | + hash_entry->u.def.section->output_offset | |
4142 | + hash_entry->u.def.section->output_section->vma)); | |
4143 | ||
c1c8c1ef | 4144 | minfo (" %pT\n", hash_entry->root.string); |
252b5132 RH |
4145 | } |
4146 | ||
b34976b6 | 4147 | return TRUE; |
252b5132 RH |
4148 | } |
4149 | ||
02688209 TG |
4150 | static int |
4151 | hash_entry_addr_cmp (const void *a, const void *b) | |
4152 | { | |
4153 | const struct bfd_link_hash_entry *l = *(const struct bfd_link_hash_entry **)a; | |
4154 | const struct bfd_link_hash_entry *r = *(const struct bfd_link_hash_entry **)b; | |
4155 | ||
4156 | if (l->u.def.value < r->u.def.value) | |
4157 | return -1; | |
4158 | else if (l->u.def.value > r->u.def.value) | |
4159 | return 1; | |
4160 | else | |
4161 | return 0; | |
4162 | } | |
4163 | ||
35835446 | 4164 | static void |
e0f6802f | 4165 | print_all_symbols (asection *sec) |
35835446 | 4166 | { |
6fcc66ab AM |
4167 | input_section_userdata_type *ud |
4168 | = (input_section_userdata_type *) get_userdata (sec); | |
35835446 | 4169 | struct map_symbol_def *def; |
02688209 TG |
4170 | struct bfd_link_hash_entry **entries; |
4171 | unsigned int i; | |
35835446 | 4172 | |
afd7a018 AM |
4173 | if (!ud) |
4174 | return; | |
4175 | ||
35835446 | 4176 | *ud->map_symbol_def_tail = 0; |
1e0061d2 | 4177 | |
02688209 | 4178 | /* Sort the symbols by address. */ |
1e9cc1c2 | 4179 | entries = (struct bfd_link_hash_entry **) |
0aa7f586 AM |
4180 | obstack_alloc (&map_obstack, |
4181 | ud->map_symbol_def_count * sizeof (*entries)); | |
02688209 TG |
4182 | |
4183 | for (i = 0, def = ud->map_symbol_def_head; def; def = def->next, i++) | |
4184 | entries[i] = def->entry; | |
4185 | ||
4186 | qsort (entries, ud->map_symbol_def_count, sizeof (*entries), | |
4724d37e | 4187 | hash_entry_addr_cmp); |
02688209 TG |
4188 | |
4189 | /* Print the symbols. */ | |
4190 | for (i = 0; i < ud->map_symbol_def_count; i++) | |
4191 | print_one_symbol (entries[i], sec); | |
4192 | ||
4193 | obstack_free (&map_obstack, entries); | |
35835446 JR |
4194 | } |
4195 | ||
252b5132 RH |
4196 | /* Print information about an input section to the map file. */ |
4197 | ||
4198 | static void | |
d64703c6 | 4199 | print_input_section (asection *i, bfd_boolean is_discarded) |
252b5132 | 4200 | { |
eea6121a | 4201 | bfd_size_type size = i->size; |
abe6ac95 AM |
4202 | int len; |
4203 | bfd_vma addr; | |
e5caa5e0 AM |
4204 | |
4205 | init_opb (); | |
4d4920ec | 4206 | |
abe6ac95 AM |
4207 | print_space (); |
4208 | minfo ("%s", i->name); | |
252b5132 | 4209 | |
abe6ac95 AM |
4210 | len = 1 + strlen (i->name); |
4211 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
4212 | { | |
4213 | print_nl (); | |
4214 | len = 0; | |
4215 | } | |
4216 | while (len < SECTION_NAME_MAP_LENGTH) | |
4217 | { | |
57ceae94 | 4218 | print_space (); |
abe6ac95 AM |
4219 | ++len; |
4220 | } | |
252b5132 | 4221 | |
f13a99db AM |
4222 | if (i->output_section != NULL |
4223 | && i->output_section->owner == link_info.output_bfd) | |
abe6ac95 AM |
4224 | addr = i->output_section->vma + i->output_offset; |
4225 | else | |
4226 | { | |
4227 | addr = print_dot; | |
d64703c6 TG |
4228 | if (!is_discarded) |
4229 | size = 0; | |
abe6ac95 | 4230 | } |
252b5132 | 4231 | |
871b3ab2 | 4232 | minfo ("0x%V %W %pB\n", addr, size, i->owner); |
252b5132 | 4233 | |
abe6ac95 AM |
4234 | if (size != i->rawsize && i->rawsize != 0) |
4235 | { | |
4236 | len = SECTION_NAME_MAP_LENGTH + 3; | |
252b5132 | 4237 | #ifdef BFD64 |
abe6ac95 | 4238 | len += 16; |
252b5132 | 4239 | #else |
abe6ac95 | 4240 | len += 8; |
252b5132 | 4241 | #endif |
abe6ac95 AM |
4242 | while (len > 0) |
4243 | { | |
4244 | print_space (); | |
4245 | --len; | |
57ceae94 AM |
4246 | } |
4247 | ||
abe6ac95 AM |
4248 | minfo (_("%W (size before relaxing)\n"), i->rawsize); |
4249 | } | |
252b5132 | 4250 | |
f13a99db AM |
4251 | if (i->output_section != NULL |
4252 | && i->output_section->owner == link_info.output_bfd) | |
abe6ac95 | 4253 | { |
c0f00686 | 4254 | if (link_info.reduce_memory_overheads) |
abe6ac95 AM |
4255 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, i); |
4256 | else | |
4257 | print_all_symbols (i); | |
4258 | ||
5590fba9 NC |
4259 | /* Update print_dot, but make sure that we do not move it |
4260 | backwards - this could happen if we have overlays and a | |
4261 | later overlay is shorter than an earier one. */ | |
4262 | if (addr + TO_ADDR (size) > print_dot) | |
4263 | print_dot = addr + TO_ADDR (size); | |
252b5132 RH |
4264 | } |
4265 | } | |
4266 | ||
4267 | static void | |
1579bae1 | 4268 | print_fill_statement (lang_fill_statement_type *fill) |
252b5132 | 4269 | { |
2c382fb6 AM |
4270 | size_t size; |
4271 | unsigned char *p; | |
4272 | fputs (" FILL mask 0x", config.map_file); | |
4273 | for (p = fill->fill->data, size = fill->fill->size; size != 0; p++, size--) | |
4274 | fprintf (config.map_file, "%02x", *p); | |
4275 | fputs ("\n", config.map_file); | |
252b5132 RH |
4276 | } |
4277 | ||
4278 | static void | |
1579bae1 | 4279 | print_data_statement (lang_data_statement_type *data) |
252b5132 RH |
4280 | { |
4281 | int i; | |
4282 | bfd_vma addr; | |
4283 | bfd_size_type size; | |
4284 | const char *name; | |
4285 | ||
e5caa5e0 | 4286 | init_opb (); |
252b5132 RH |
4287 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
4288 | print_space (); | |
4289 | ||
7fabd029 | 4290 | addr = data->output_offset; |
252b5132 RH |
4291 | if (data->output_section != NULL) |
4292 | addr += data->output_section->vma; | |
4293 | ||
4294 | switch (data->type) | |
4295 | { | |
4296 | default: | |
4297 | abort (); | |
4298 | case BYTE: | |
4299 | size = BYTE_SIZE; | |
4300 | name = "BYTE"; | |
4301 | break; | |
4302 | case SHORT: | |
4303 | size = SHORT_SIZE; | |
4304 | name = "SHORT"; | |
4305 | break; | |
4306 | case LONG: | |
4307 | size = LONG_SIZE; | |
4308 | name = "LONG"; | |
4309 | break; | |
4310 | case QUAD: | |
4311 | size = QUAD_SIZE; | |
4312 | name = "QUAD"; | |
4313 | break; | |
4314 | case SQUAD: | |
4315 | size = QUAD_SIZE; | |
4316 | name = "SQUAD"; | |
4317 | break; | |
4318 | } | |
4319 | ||
953dd97e DG |
4320 | if (size < TO_SIZE ((unsigned) 1)) |
4321 | size = TO_SIZE ((unsigned) 1); | |
4322 | minfo ("0x%V %W %s 0x%v", addr, TO_ADDR (size), name, data->value); | |
252b5132 RH |
4323 | |
4324 | if (data->exp->type.node_class != etree_value) | |
4325 | { | |
4326 | print_space (); | |
4327 | exp_print_tree (data->exp); | |
4328 | } | |
4329 | ||
4330 | print_nl (); | |
4331 | ||
e5caa5e0 | 4332 | print_dot = addr + TO_ADDR (size); |
252b5132 RH |
4333 | } |
4334 | ||
4335 | /* Print an address statement. These are generated by options like | |
4336 | -Ttext. */ | |
4337 | ||
4338 | static void | |
1579bae1 | 4339 | print_address_statement (lang_address_statement_type *address) |
252b5132 RH |
4340 | { |
4341 | minfo (_("Address of section %s set to "), address->section_name); | |
4342 | exp_print_tree (address->address); | |
4343 | print_nl (); | |
4344 | } | |
4345 | ||
4346 | /* Print a reloc statement. */ | |
4347 | ||
4348 | static void | |
1579bae1 | 4349 | print_reloc_statement (lang_reloc_statement_type *reloc) |
252b5132 RH |
4350 | { |
4351 | int i; | |
4352 | bfd_vma addr; | |
4353 | bfd_size_type size; | |
4354 | ||
e5caa5e0 | 4355 | init_opb (); |
252b5132 RH |
4356 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
4357 | print_space (); | |
4358 | ||
7fabd029 | 4359 | addr = reloc->output_offset; |
252b5132 RH |
4360 | if (reloc->output_section != NULL) |
4361 | addr += reloc->output_section->vma; | |
4362 | ||
4363 | size = bfd_get_reloc_size (reloc->howto); | |
4364 | ||
953dd97e | 4365 | minfo ("0x%V %W RELOC %s ", addr, TO_ADDR (size), reloc->howto->name); |
252b5132 RH |
4366 | |
4367 | if (reloc->name != NULL) | |
4368 | minfo ("%s+", reloc->name); | |
4369 | else | |
4370 | minfo ("%s+", reloc->section->name); | |
4371 | ||
4372 | exp_print_tree (reloc->addend_exp); | |
4373 | ||
4374 | print_nl (); | |
4375 | ||
e5caa5e0 | 4376 | print_dot = addr + TO_ADDR (size); |
5f992e62 | 4377 | } |
252b5132 RH |
4378 | |
4379 | static void | |
1579bae1 | 4380 | print_padding_statement (lang_padding_statement_type *s) |
252b5132 RH |
4381 | { |
4382 | int len; | |
4383 | bfd_vma addr; | |
4384 | ||
e5caa5e0 | 4385 | init_opb (); |
252b5132 RH |
4386 | minfo (" *fill*"); |
4387 | ||
4388 | len = sizeof " *fill*" - 1; | |
4389 | while (len < SECTION_NAME_MAP_LENGTH) | |
4390 | { | |
4391 | print_space (); | |
4392 | ++len; | |
4393 | } | |
4394 | ||
4395 | addr = s->output_offset; | |
4396 | if (s->output_section != NULL) | |
4397 | addr += s->output_section->vma; | |
953dd97e | 4398 | minfo ("0x%V %W ", addr, TO_ADDR (s->size)); |
252b5132 | 4399 | |
2c382fb6 AM |
4400 | if (s->fill->size != 0) |
4401 | { | |
4402 | size_t size; | |
4403 | unsigned char *p; | |
4404 | for (p = s->fill->data, size = s->fill->size; size != 0; p++, size--) | |
4405 | fprintf (config.map_file, "%02x", *p); | |
4406 | } | |
252b5132 RH |
4407 | |
4408 | print_nl (); | |
4409 | ||
e5caa5e0 | 4410 | print_dot = addr + TO_ADDR (s->size); |
252b5132 RH |
4411 | } |
4412 | ||
4413 | static void | |
1579bae1 AM |
4414 | print_wild_statement (lang_wild_statement_type *w, |
4415 | lang_output_section_statement_type *os) | |
252b5132 | 4416 | { |
b6bf44ba AM |
4417 | struct wildcard_list *sec; |
4418 | ||
252b5132 RH |
4419 | print_space (); |
4420 | ||
8f1732fc AB |
4421 | if (w->exclude_name_list) |
4422 | { | |
4423 | name_list *tmp; | |
4424 | minfo ("EXCLUDE_FILE(%s", w->exclude_name_list->name); | |
4425 | for (tmp = w->exclude_name_list->next; tmp; tmp = tmp->next) | |
6c19b93b | 4426 | minfo (" %s", tmp->name); |
8f1732fc AB |
4427 | minfo (") "); |
4428 | } | |
4429 | ||
252b5132 | 4430 | if (w->filenames_sorted) |
2b94abd4 | 4431 | minfo ("SORT_BY_NAME("); |
08da4cac | 4432 | if (w->filename != NULL) |
252b5132 RH |
4433 | minfo ("%s", w->filename); |
4434 | else | |
4435 | minfo ("*"); | |
4436 | if (w->filenames_sorted) | |
4437 | minfo (")"); | |
4438 | ||
4439 | minfo ("("); | |
b6bf44ba AM |
4440 | for (sec = w->section_list; sec; sec = sec->next) |
4441 | { | |
2b94abd4 AB |
4442 | int closing_paren = 0; |
4443 | ||
4444 | switch (sec->spec.sorted) | |
6c19b93b AM |
4445 | { |
4446 | case none: | |
4447 | break; | |
4448 | ||
4449 | case by_name: | |
4450 | minfo ("SORT_BY_NAME("); | |
4451 | closing_paren = 1; | |
4452 | break; | |
4453 | ||
4454 | case by_alignment: | |
4455 | minfo ("SORT_BY_ALIGNMENT("); | |
4456 | closing_paren = 1; | |
4457 | break; | |
4458 | ||
4459 | case by_name_alignment: | |
4460 | minfo ("SORT_BY_NAME(SORT_BY_ALIGNMENT("); | |
4461 | closing_paren = 2; | |
4462 | break; | |
4463 | ||
4464 | case by_alignment_name: | |
4465 | minfo ("SORT_BY_ALIGNMENT(SORT_BY_NAME("); | |
4466 | closing_paren = 2; | |
4467 | break; | |
4468 | ||
4469 | case by_none: | |
4470 | minfo ("SORT_NONE("); | |
4471 | closing_paren = 1; | |
4472 | break; | |
4473 | ||
4474 | case by_init_priority: | |
4475 | minfo ("SORT_BY_INIT_PRIORITY("); | |
4476 | closing_paren = 1; | |
4477 | break; | |
4478 | } | |
2b94abd4 | 4479 | |
b6bf44ba AM |
4480 | if (sec->spec.exclude_name_list != NULL) |
4481 | { | |
4482 | name_list *tmp; | |
34786259 | 4483 | minfo ("EXCLUDE_FILE(%s", sec->spec.exclude_name_list->name); |
b6bf44ba | 4484 | for (tmp = sec->spec.exclude_name_list->next; tmp; tmp = tmp->next) |
34786259 AM |
4485 | minfo (" %s", tmp->name); |
4486 | minfo (") "); | |
b6bf44ba AM |
4487 | } |
4488 | if (sec->spec.name != NULL) | |
4489 | minfo ("%s", sec->spec.name); | |
4490 | else | |
4491 | minfo ("*"); | |
2b94abd4 | 4492 | for (;closing_paren > 0; closing_paren--) |
6c19b93b | 4493 | minfo (")"); |
34786259 AM |
4494 | if (sec->next) |
4495 | minfo (" "); | |
b6bf44ba | 4496 | } |
252b5132 RH |
4497 | minfo (")"); |
4498 | ||
4499 | print_nl (); | |
4500 | ||
4501 | print_statement_list (w->children.head, os); | |
4502 | } | |
4503 | ||
4504 | /* Print a group statement. */ | |
4505 | ||
4506 | static void | |
1579bae1 AM |
4507 | print_group (lang_group_statement_type *s, |
4508 | lang_output_section_statement_type *os) | |
252b5132 RH |
4509 | { |
4510 | fprintf (config.map_file, "START GROUP\n"); | |
4511 | print_statement_list (s->children.head, os); | |
4512 | fprintf (config.map_file, "END GROUP\n"); | |
4513 | } | |
4514 | ||
4515 | /* Print the list of statements in S. | |
4516 | This can be called for any statement type. */ | |
4517 | ||
4518 | static void | |
1579bae1 AM |
4519 | print_statement_list (lang_statement_union_type *s, |
4520 | lang_output_section_statement_type *os) | |
252b5132 RH |
4521 | { |
4522 | while (s != NULL) | |
4523 | { | |
4524 | print_statement (s, os); | |
bba1a0c0 | 4525 | s = s->header.next; |
252b5132 RH |
4526 | } |
4527 | } | |
4528 | ||
4529 | /* Print the first statement in statement list S. | |
4530 | This can be called for any statement type. */ | |
4531 | ||
4532 | static void | |
1579bae1 AM |
4533 | print_statement (lang_statement_union_type *s, |
4534 | lang_output_section_statement_type *os) | |
252b5132 RH |
4535 | { |
4536 | switch (s->header.type) | |
4537 | { | |
4538 | default: | |
4539 | fprintf (config.map_file, _("Fail with %d\n"), s->header.type); | |
4540 | FAIL (); | |
4541 | break; | |
4542 | case lang_constructors_statement_enum: | |
4543 | if (constructor_list.head != NULL) | |
4544 | { | |
4545 | if (constructors_sorted) | |
4546 | minfo (" SORT (CONSTRUCTORS)\n"); | |
4547 | else | |
4548 | minfo (" CONSTRUCTORS\n"); | |
4549 | print_statement_list (constructor_list.head, os); | |
4550 | } | |
4551 | break; | |
4552 | case lang_wild_statement_enum: | |
4553 | print_wild_statement (&s->wild_statement, os); | |
4554 | break; | |
4555 | case lang_address_statement_enum: | |
4556 | print_address_statement (&s->address_statement); | |
4557 | break; | |
4558 | case lang_object_symbols_statement_enum: | |
4559 | minfo (" CREATE_OBJECT_SYMBOLS\n"); | |
4560 | break; | |
4561 | case lang_fill_statement_enum: | |
4562 | print_fill_statement (&s->fill_statement); | |
4563 | break; | |
4564 | case lang_data_statement_enum: | |
4565 | print_data_statement (&s->data_statement); | |
4566 | break; | |
4567 | case lang_reloc_statement_enum: | |
4568 | print_reloc_statement (&s->reloc_statement); | |
4569 | break; | |
4570 | case lang_input_section_enum: | |
d64703c6 | 4571 | print_input_section (s->input_section.section, FALSE); |
252b5132 RH |
4572 | break; |
4573 | case lang_padding_statement_enum: | |
4574 | print_padding_statement (&s->padding_statement); | |
4575 | break; | |
4576 | case lang_output_section_statement_enum: | |
4577 | print_output_section_statement (&s->output_section_statement); | |
4578 | break; | |
4579 | case lang_assignment_statement_enum: | |
4580 | print_assignment (&s->assignment_statement, os); | |
4581 | break; | |
4582 | case lang_target_statement_enum: | |
4583 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
4584 | break; | |
4585 | case lang_output_statement_enum: | |
4586 | minfo ("OUTPUT(%s", s->output_statement.name); | |
4587 | if (output_target != NULL) | |
4588 | minfo (" %s", output_target); | |
4589 | minfo (")\n"); | |
4590 | break; | |
4591 | case lang_input_statement_enum: | |
4592 | print_input_statement (&s->input_statement); | |
4593 | break; | |
4594 | case lang_group_statement_enum: | |
4595 | print_group (&s->group_statement, os); | |
4596 | break; | |
53d25da6 AM |
4597 | case lang_insert_statement_enum: |
4598 | minfo ("INSERT %s %s\n", | |
4599 | s->insert_statement.is_before ? "BEFORE" : "AFTER", | |
4600 | s->insert_statement.where); | |
4601 | break; | |
252b5132 RH |
4602 | } |
4603 | } | |
4604 | ||
4605 | static void | |
1579bae1 | 4606 | print_statements (void) |
252b5132 RH |
4607 | { |
4608 | print_statement_list (statement_list.head, abs_output_section); | |
4609 | } | |
4610 | ||
4611 | /* Print the first N statements in statement list S to STDERR. | |
4612 | If N == 0, nothing is printed. | |
4613 | If N < 0, the entire list is printed. | |
4614 | Intended to be called from GDB. */ | |
4615 | ||
4616 | void | |
1579bae1 | 4617 | dprint_statement (lang_statement_union_type *s, int n) |
252b5132 RH |
4618 | { |
4619 | FILE *map_save = config.map_file; | |
4620 | ||
4621 | config.map_file = stderr; | |
4622 | ||
4623 | if (n < 0) | |
4624 | print_statement_list (s, abs_output_section); | |
4625 | else | |
4626 | { | |
4627 | while (s && --n >= 0) | |
4628 | { | |
4629 | print_statement (s, abs_output_section); | |
bba1a0c0 | 4630 | s = s->header.next; |
252b5132 RH |
4631 | } |
4632 | } | |
4633 | ||
4634 | config.map_file = map_save; | |
4635 | } | |
4636 | ||
b3327aad | 4637 | static void |
1579bae1 AM |
4638 | insert_pad (lang_statement_union_type **ptr, |
4639 | fill_type *fill, | |
1a69ff95 | 4640 | bfd_size_type alignment_needed, |
1579bae1 AM |
4641 | asection *output_section, |
4642 | bfd_vma dot) | |
252b5132 | 4643 | { |
b7761f11 | 4644 | static fill_type zero_fill; |
e9ee469a | 4645 | lang_statement_union_type *pad = NULL; |
b3327aad | 4646 | |
e9ee469a AM |
4647 | if (ptr != &statement_list.head) |
4648 | pad = ((lang_statement_union_type *) | |
4649 | ((char *) ptr - offsetof (lang_statement_union_type, header.next))); | |
4650 | if (pad != NULL | |
4651 | && pad->header.type == lang_padding_statement_enum | |
4652 | && pad->padding_statement.output_section == output_section) | |
4653 | { | |
4654 | /* Use the existing pad statement. */ | |
4655 | } | |
4656 | else if ((pad = *ptr) != NULL | |
906e58ca NC |
4657 | && pad->header.type == lang_padding_statement_enum |
4658 | && pad->padding_statement.output_section == output_section) | |
252b5132 | 4659 | { |
e9ee469a | 4660 | /* Use the existing pad statement. */ |
252b5132 | 4661 | } |
b3327aad | 4662 | else |
252b5132 | 4663 | { |
b3327aad | 4664 | /* Make a new padding statement, linked into existing chain. */ |
1e9cc1c2 | 4665 | pad = (lang_statement_union_type *) |
4724d37e | 4666 | stat_alloc (sizeof (lang_padding_statement_type)); |
b3327aad AM |
4667 | pad->header.next = *ptr; |
4668 | *ptr = pad; | |
4669 | pad->header.type = lang_padding_statement_enum; | |
4670 | pad->padding_statement.output_section = output_section; | |
1579bae1 | 4671 | if (fill == NULL) |
2c382fb6 | 4672 | fill = &zero_fill; |
b3327aad | 4673 | pad->padding_statement.fill = fill; |
252b5132 | 4674 | } |
b3327aad AM |
4675 | pad->padding_statement.output_offset = dot - output_section->vma; |
4676 | pad->padding_statement.size = alignment_needed; | |
8772de11 MR |
4677 | if (!(output_section->flags & SEC_FIXED_SIZE)) |
4678 | output_section->size = TO_SIZE (dot + TO_ADDR (alignment_needed) | |
4679 | - output_section->vma); | |
252b5132 RH |
4680 | } |
4681 | ||
08da4cac KH |
4682 | /* Work out how much this section will move the dot point. */ |
4683 | ||
252b5132 | 4684 | static bfd_vma |
6feb9908 AM |
4685 | size_input_section |
4686 | (lang_statement_union_type **this_ptr, | |
4687 | lang_output_section_statement_type *output_section_statement, | |
4688 | fill_type *fill, | |
4689 | bfd_vma dot) | |
252b5132 RH |
4690 | { |
4691 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
4692 | asection *i = is->section; | |
93d1b056 | 4693 | asection *o = output_section_statement->bfd_section; |
252b5132 | 4694 | |
93d1b056 AM |
4695 | if (i->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
4696 | i->output_offset = i->vma - o->vma; | |
9ef7906f IK |
4697 | else if (((i->flags & SEC_EXCLUDE) != 0) |
4698 | || output_section_statement->ignored) | |
93d1b056 AM |
4699 | i->output_offset = dot - o->vma; |
4700 | else | |
252b5132 | 4701 | { |
1a69ff95 | 4702 | bfd_size_type alignment_needed; |
b3327aad AM |
4703 | |
4704 | /* Align this section first to the input sections requirement, | |
4705 | then to the output section's requirement. If this alignment | |
4706 | is greater than any seen before, then record it too. Perform | |
4707 | the alignment by inserting a magic 'padding' statement. */ | |
4708 | ||
252b5132 | 4709 | if (output_section_statement->subsection_alignment != -1) |
b3327aad AM |
4710 | i->alignment_power = output_section_statement->subsection_alignment; |
4711 | ||
b3327aad AM |
4712 | if (o->alignment_power < i->alignment_power) |
4713 | o->alignment_power = i->alignment_power; | |
252b5132 | 4714 | |
b3327aad AM |
4715 | alignment_needed = align_power (dot, i->alignment_power) - dot; |
4716 | ||
4717 | if (alignment_needed != 0) | |
4718 | { | |
e5caa5e0 | 4719 | insert_pad (this_ptr, fill, TO_SIZE (alignment_needed), o, dot); |
b3327aad AM |
4720 | dot += alignment_needed; |
4721 | } | |
252b5132 | 4722 | |
08da4cac | 4723 | /* Remember where in the output section this input section goes. */ |
b3327aad | 4724 | i->output_offset = dot - o->vma; |
252b5132 | 4725 | |
08da4cac | 4726 | /* Mark how big the output section must be to contain this now. */ |
eea6121a | 4727 | dot += TO_ADDR (i->size); |
8772de11 MR |
4728 | if (!(o->flags & SEC_FIXED_SIZE)) |
4729 | o->size = TO_SIZE (dot - o->vma); | |
252b5132 | 4730 | } |
252b5132 RH |
4731 | |
4732 | return dot; | |
4733 | } | |
4734 | ||
a87dd97a AM |
4735 | struct check_sec |
4736 | { | |
4737 | asection *sec; | |
4738 | bfd_boolean warned; | |
4739 | }; | |
4740 | ||
5daa8fe7 L |
4741 | static int |
4742 | sort_sections_by_lma (const void *arg1, const void *arg2) | |
4743 | { | |
a87dd97a AM |
4744 | const asection *sec1 = ((const struct check_sec *) arg1)->sec; |
4745 | const asection *sec2 = ((const struct check_sec *) arg2)->sec; | |
4746 | ||
4747 | if (sec1->lma < sec2->lma) | |
4748 | return -1; | |
4749 | else if (sec1->lma > sec2->lma) | |
4750 | return 1; | |
4751 | else if (sec1->id < sec2->id) | |
4752 | return -1; | |
4753 | else if (sec1->id > sec2->id) | |
4754 | return 1; | |
4755 | ||
4756 | return 0; | |
4757 | } | |
4758 | ||
4759 | static int | |
4760 | sort_sections_by_vma (const void *arg1, const void *arg2) | |
4761 | { | |
4762 | const asection *sec1 = ((const struct check_sec *) arg1)->sec; | |
4763 | const asection *sec2 = ((const struct check_sec *) arg2)->sec; | |
5daa8fe7 | 4764 | |
a87dd97a | 4765 | if (sec1->vma < sec2->vma) |
5daa8fe7 | 4766 | return -1; |
a87dd97a | 4767 | else if (sec1->vma > sec2->vma) |
5daa8fe7 | 4768 | return 1; |
7f6a71ff JM |
4769 | else if (sec1->id < sec2->id) |
4770 | return -1; | |
4771 | else if (sec1->id > sec2->id) | |
4772 | return 1; | |
5daa8fe7 L |
4773 | |
4774 | return 0; | |
4775 | } | |
4776 | ||
2e4a7aea AM |
4777 | #define IS_TBSS(s) \ |
4778 | ((s->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == SEC_THREAD_LOCAL) | |
4779 | ||
eea6121a | 4780 | #define IGNORE_SECTION(s) \ |
2e4a7aea | 4781 | ((s->flags & SEC_ALLOC) == 0 || IS_TBSS (s)) |
d1778b88 | 4782 | |
252b5132 | 4783 | /* Check to see if any allocated sections overlap with other allocated |
afd7a018 | 4784 | sections. This can happen if a linker script specifies the output |
20e56351 DJ |
4785 | section addresses of the two sections. Also check whether any memory |
4786 | region has overflowed. */ | |
08da4cac | 4787 | |
252b5132 | 4788 | static void |
1579bae1 | 4789 | lang_check_section_addresses (void) |
252b5132 | 4790 | { |
f4427a75 | 4791 | asection *s, *p; |
a87dd97a AM |
4792 | struct check_sec *sections; |
4793 | size_t i, count; | |
d40e34db | 4794 | bfd_vma addr_mask; |
5daa8fe7 L |
4795 | bfd_vma s_start; |
4796 | bfd_vma s_end; | |
a87dd97a AM |
4797 | bfd_vma p_start = 0; |
4798 | bfd_vma p_end = 0; | |
20e56351 | 4799 | lang_memory_region_type *m; |
136a43b7 | 4800 | bfd_boolean overlays; |
5daa8fe7 | 4801 | |
21701718 | 4802 | /* Detect address space overflow on allocated sections. */ |
d40e34db TG |
4803 | addr_mask = ((bfd_vma) 1 << |
4804 | (bfd_arch_bits_per_address (link_info.output_bfd) - 1)) - 1; | |
4805 | addr_mask = (addr_mask << 1) + 1; | |
4806 | for (s = link_info.output_bfd->sections; s != NULL; s = s->next) | |
21701718 TG |
4807 | if ((s->flags & SEC_ALLOC) != 0) |
4808 | { | |
4809 | s_end = (s->vma + s->size) & addr_mask; | |
4810 | if (s_end != 0 && s_end < (s->vma & addr_mask)) | |
4811 | einfo (_("%X%P: section %s VMA wraps around address space\n"), | |
4812 | s->name); | |
4813 | else | |
4814 | { | |
4815 | s_end = (s->lma + s->size) & addr_mask; | |
4816 | if (s_end != 0 && s_end < (s->lma & addr_mask)) | |
4817 | einfo (_("%X%P: section %s LMA wraps around address space\n"), | |
4818 | s->name); | |
4819 | } | |
4820 | } | |
d40e34db | 4821 | |
f13a99db | 4822 | if (bfd_count_sections (link_info.output_bfd) <= 1) |
5daa8fe7 L |
4823 | return; |
4824 | ||
a87dd97a AM |
4825 | count = bfd_count_sections (link_info.output_bfd); |
4826 | sections = XNEWVEC (struct check_sec, count); | |
252b5132 RH |
4827 | |
4828 | /* Scan all sections in the output list. */ | |
5daa8fe7 | 4829 | count = 0; |
f13a99db | 4830 | for (s = link_info.output_bfd->sections; s != NULL; s = s->next) |
33275c22 | 4831 | { |
a87dd97a | 4832 | if (IGNORE_SECTION (s) |
ec6d26be | 4833 | || s->size == 0) |
33275c22 | 4834 | continue; |
5f992e62 | 4835 | |
a87dd97a AM |
4836 | sections[count].sec = s; |
4837 | sections[count].warned = FALSE; | |
5daa8fe7 L |
4838 | count++; |
4839 | } | |
329c1c86 | 4840 | |
5daa8fe7 | 4841 | if (count <= 1) |
136a43b7 AM |
4842 | { |
4843 | free (sections); | |
4844 | return; | |
4845 | } | |
5f992e62 | 4846 | |
a87dd97a | 4847 | qsort (sections, count, sizeof (*sections), sort_sections_by_lma); |
5f992e62 | 4848 | |
136a43b7 | 4849 | /* First check section LMAs. There should be no overlap of LMAs on |
a87dd97a AM |
4850 | loadable sections, even with overlays. */ |
4851 | for (p = NULL, i = 0; i < count; i++) | |
5daa8fe7 | 4852 | { |
a87dd97a AM |
4853 | s = sections[i].sec; |
4854 | if ((s->flags & SEC_LOAD) != 0) | |
4855 | { | |
4856 | s_start = s->lma; | |
4857 | s_end = s_start + TO_ADDR (s->size) - 1; | |
4858 | ||
4859 | /* Look for an overlap. We have sorted sections by lma, so | |
4860 | we know that s_start >= p_start. Besides the obvious | |
4861 | case of overlap when the current section starts before | |
4862 | the previous one ends, we also must have overlap if the | |
4863 | previous section wraps around the address space. */ | |
4864 | if (p != NULL | |
4865 | && (s_start <= p_end | |
4866 | || p_end < p_start)) | |
4867 | { | |
4868 | einfo (_("%X%P: section %s LMA [%V,%V]" | |
4869 | " overlaps section %s LMA [%V,%V]\n"), | |
4870 | s->name, s_start, s_end, p->name, p_start, p_end); | |
4871 | sections[i].warned = TRUE; | |
4872 | } | |
4873 | p = s; | |
4874 | p_start = s_start; | |
4875 | p_end = s_end; | |
4876 | } | |
4877 | } | |
4878 | ||
136a43b7 AM |
4879 | /* If any non-zero size allocated section (excluding tbss) starts at |
4880 | exactly the same VMA as another such section, then we have | |
4881 | overlays. Overlays generated by the OVERLAY keyword will have | |
4882 | this property. It is possible to intentionally generate overlays | |
4883 | that fail this test, but it would be unusual. */ | |
4884 | qsort (sections, count, sizeof (*sections), sort_sections_by_vma); | |
4885 | overlays = FALSE; | |
4886 | p_start = sections[0].sec->vma; | |
4887 | for (i = 1; i < count; i++) | |
a87dd97a | 4888 | { |
136a43b7 AM |
4889 | s_start = sections[i].sec->vma; |
4890 | if (p_start == s_start) | |
4891 | { | |
4892 | overlays = TRUE; | |
4893 | break; | |
4894 | } | |
4895 | p_start = s_start; | |
4896 | } | |
a87dd97a | 4897 | |
136a43b7 AM |
4898 | /* Now check section VMAs if no overlays were detected. */ |
4899 | if (!overlays) | |
4900 | { | |
a87dd97a AM |
4901 | for (p = NULL, i = 0; i < count; i++) |
4902 | { | |
4903 | s = sections[i].sec; | |
4904 | s_start = s->vma; | |
4905 | s_end = s_start + TO_ADDR (s->size) - 1; | |
4906 | ||
4907 | if (p != NULL | |
4908 | && !sections[i].warned | |
4909 | && (s_start <= p_end | |
4910 | || p_end < p_start)) | |
4911 | einfo (_("%X%P: section %s VMA [%V,%V]" | |
4912 | " overlaps section %s VMA [%V,%V]\n"), | |
4913 | s->name, s_start, s_end, p->name, p_start, p_end); | |
4914 | p = s; | |
4915 | p_start = s_start; | |
4916 | p_end = s_end; | |
4917 | } | |
33275c22 | 4918 | } |
5daa8fe7 L |
4919 | |
4920 | free (sections); | |
20e56351 DJ |
4921 | |
4922 | /* If any memory region has overflowed, report by how much. | |
4923 | We do not issue this diagnostic for regions that had sections | |
4924 | explicitly placed outside their bounds; os_region_check's | |
4925 | diagnostics are adequate for that case. | |
4926 | ||
4927 | FIXME: It is conceivable that m->current - (m->origin + m->length) | |
4928 | might overflow a 32-bit integer. There is, alas, no way to print | |
4929 | a bfd_vma quantity in decimal. */ | |
4930 | for (m = lang_memory_region_list; m; m = m->next) | |
4931 | if (m->had_full_message) | |
992a06ee AM |
4932 | { |
4933 | unsigned long over = m->current - (m->origin + m->length); | |
4934 | einfo (ngettext ("%X%P: region `%s' overflowed by %lu byte\n", | |
4935 | "%X%P: region `%s' overflowed by %lu bytes\n", | |
4936 | over), | |
4937 | m->name_list.name, over); | |
4938 | } | |
252b5132 RH |
4939 | } |
4940 | ||
562d3460 TW |
4941 | /* Make sure the new address is within the region. We explicitly permit the |
4942 | current address to be at the exact end of the region when the address is | |
4943 | non-zero, in case the region is at the end of addressable memory and the | |
5f992e62 | 4944 | calculation wraps around. */ |
562d3460 TW |
4945 | |
4946 | static void | |
1579bae1 | 4947 | os_region_check (lang_output_section_statement_type *os, |
6bdafbeb | 4948 | lang_memory_region_type *region, |
1579bae1 | 4949 | etree_type *tree, |
91d6fa6a | 4950 | bfd_vma rbase) |
562d3460 TW |
4951 | { |
4952 | if ((region->current < region->origin | |
4953 | || (region->current - region->origin > region->length)) | |
4954 | && ((region->current != region->origin + region->length) | |
91d6fa6a | 4955 | || rbase == 0)) |
562d3460 | 4956 | { |
1579bae1 | 4957 | if (tree != NULL) |
b7a26f91 | 4958 | { |
871b3ab2 | 4959 | einfo (_("%X%P: address 0x%v of %pB section `%s'" |
4a93e180 | 4960 | " is not within region `%s'\n"), |
b7a26f91 KH |
4961 | region->current, |
4962 | os->bfd_section->owner, | |
4963 | os->bfd_section->name, | |
4a93e180 | 4964 | region->name_list.name); |
b7a26f91 | 4965 | } |
20e56351 | 4966 | else if (!region->had_full_message) |
b7a26f91 | 4967 | { |
20e56351 DJ |
4968 | region->had_full_message = TRUE; |
4969 | ||
871b3ab2 | 4970 | einfo (_("%X%P: %pB section `%s' will not fit in region `%s'\n"), |
b7a26f91 | 4971 | os->bfd_section->owner, |
20e56351 | 4972 | os->bfd_section->name, |
4a93e180 | 4973 | region->name_list.name); |
b7a26f91 | 4974 | } |
562d3460 TW |
4975 | } |
4976 | } | |
4977 | ||
ed1794ee L |
4978 | static void |
4979 | ldlang_check_relro_region (lang_statement_union_type *s, | |
4980 | seg_align_type *seg) | |
4981 | { | |
4982 | if (seg->relro == exp_seg_relro_start) | |
4983 | { | |
4984 | if (!seg->relro_start_stat) | |
4985 | seg->relro_start_stat = s; | |
4986 | else | |
4987 | { | |
4988 | ASSERT (seg->relro_start_stat == s); | |
4989 | } | |
4990 | } | |
4991 | else if (seg->relro == exp_seg_relro_end) | |
4992 | { | |
4993 | if (!seg->relro_end_stat) | |
4994 | seg->relro_end_stat = s; | |
4995 | else | |
4996 | { | |
4997 | ASSERT (seg->relro_end_stat == s); | |
4998 | } | |
4999 | } | |
5000 | } | |
5001 | ||
252b5132 RH |
5002 | /* Set the sizes for all the output sections. */ |
5003 | ||
2d20f7bf | 5004 | static bfd_vma |
1579bae1 | 5005 | lang_size_sections_1 |
e535e147 | 5006 | (lang_statement_union_type **prev, |
1579bae1 | 5007 | lang_output_section_statement_type *output_section_statement, |
1579bae1 AM |
5008 | fill_type *fill, |
5009 | bfd_vma dot, | |
5010 | bfd_boolean *relax, | |
5011 | bfd_boolean check_regions) | |
252b5132 | 5012 | { |
e535e147 AM |
5013 | lang_statement_union_type *s; |
5014 | ||
252b5132 | 5015 | /* Size up the sections from their constituent parts. */ |
e535e147 | 5016 | for (s = *prev; s != NULL; s = s->header.next) |
252b5132 RH |
5017 | { |
5018 | switch (s->header.type) | |
5019 | { | |
5020 | case lang_output_section_statement_enum: | |
5021 | { | |
13075d04 | 5022 | bfd_vma newdot, after, dotdelta; |
d1778b88 | 5023 | lang_output_section_statement_type *os; |
cde9e0be | 5024 | lang_memory_region_type *r; |
c5b0a9ef | 5025 | int section_alignment = 0; |
252b5132 | 5026 | |
d1778b88 | 5027 | os = &s->output_section_statement; |
8658f989 AM |
5028 | if (os->constraint == -1) |
5029 | break; | |
5030 | ||
fd68d03d AM |
5031 | /* FIXME: We shouldn't need to zero section vmas for ld -r |
5032 | here, in lang_insert_orphan, or in the default linker scripts. | |
5033 | This is covering for coff backend linker bugs. See PR6945. */ | |
5034 | if (os->addr_tree == NULL | |
0e1862bb | 5035 | && bfd_link_relocatable (&link_info) |
fd68d03d AM |
5036 | && (bfd_get_flavour (link_info.output_bfd) |
5037 | == bfd_target_coff_flavour)) | |
eceda120 | 5038 | os->addr_tree = exp_intop (0); |
a5df8c84 AM |
5039 | if (os->addr_tree != NULL) |
5040 | { | |
cde9e0be | 5041 | os->processed_vma = FALSE; |
a5df8c84 | 5042 | exp_fold_tree (os->addr_tree, bfd_abs_section_ptr, &dot); |
a5df8c84 | 5043 | |
3bf9618b | 5044 | if (expld.result.valid_p) |
7542af2a AM |
5045 | { |
5046 | dot = expld.result.value; | |
5047 | if (expld.result.section != NULL) | |
5048 | dot += expld.result.section->vma; | |
5049 | } | |
3bf9618b | 5050 | else if (expld.phase != lang_mark_phase_enum) |
df5f2391 | 5051 | einfo (_("%F%P:%pS: non constant or forward reference" |
a5df8c84 | 5052 | " address expression for section %s\n"), |
dab69f68 | 5053 | os->addr_tree, os->name); |
a5df8c84 AM |
5054 | } |
5055 | ||
e9ee469a | 5056 | if (os->bfd_section == NULL) |
75ff4589 | 5057 | /* This section was removed or never actually created. */ |
252b5132 RH |
5058 | break; |
5059 | ||
5060 | /* If this is a COFF shared library section, use the size and | |
5061 | address from the input section. FIXME: This is COFF | |
5062 | specific; it would be cleaner if there were some other way | |
5063 | to do this, but nothing simple comes to mind. */ | |
f13a99db AM |
5064 | if (((bfd_get_flavour (link_info.output_bfd) |
5065 | == bfd_target_ecoff_flavour) | |
5066 | || (bfd_get_flavour (link_info.output_bfd) | |
5067 | == bfd_target_coff_flavour)) | |
ebe372c1 | 5068 | && (os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) |
252b5132 | 5069 | { |
08da4cac | 5070 | asection *input; |
252b5132 RH |
5071 | |
5072 | if (os->children.head == NULL | |
bba1a0c0 | 5073 | || os->children.head->header.next != NULL |
6feb9908 AM |
5074 | || (os->children.head->header.type |
5075 | != lang_input_section_enum)) | |
df5f2391 | 5076 | einfo (_("%X%P: internal error on COFF shared library" |
6feb9908 | 5077 | " section %s\n"), os->name); |
252b5132 RH |
5078 | |
5079 | input = os->children.head->input_section.section; | |
5080 | bfd_set_section_vma (os->bfd_section->owner, | |
5081 | os->bfd_section, | |
5082 | bfd_section_vma (input->owner, input)); | |
8772de11 MR |
5083 | if (!(os->bfd_section->flags & SEC_FIXED_SIZE)) |
5084 | os->bfd_section->size = input->size; | |
252b5132 RH |
5085 | break; |
5086 | } | |
5087 | ||
a5df8c84 | 5088 | newdot = dot; |
13075d04 | 5089 | dotdelta = 0; |
252b5132 RH |
5090 | if (bfd_is_abs_section (os->bfd_section)) |
5091 | { | |
5092 | /* No matter what happens, an abs section starts at zero. */ | |
5093 | ASSERT (os->bfd_section->vma == 0); | |
5094 | } | |
5095 | else | |
5096 | { | |
1579bae1 | 5097 | if (os->addr_tree == NULL) |
252b5132 RH |
5098 | { |
5099 | /* No address specified for this section, get one | |
5100 | from the region specification. */ | |
1579bae1 | 5101 | if (os->region == NULL |
6feb9908 | 5102 | || ((os->bfd_section->flags & (SEC_ALLOC | SEC_LOAD)) |
4a93e180 NC |
5103 | && os->region->name_list.name[0] == '*' |
5104 | && strcmp (os->region->name_list.name, | |
6feb9908 | 5105 | DEFAULT_MEMORY_REGION) == 0)) |
252b5132 RH |
5106 | { |
5107 | os->region = lang_memory_default (os->bfd_section); | |
5108 | } | |
5109 | ||
5110 | /* If a loadable section is using the default memory | |
5111 | region, and some non default memory regions were | |
66184979 | 5112 | defined, issue an error message. */ |
f0636a44 AM |
5113 | if (!os->ignored |
5114 | && !IGNORE_SECTION (os->bfd_section) | |
0e1862bb | 5115 | && !bfd_link_relocatable (&link_info) |
cf888e70 | 5116 | && check_regions |
4a93e180 | 5117 | && strcmp (os->region->name_list.name, |
6feb9908 | 5118 | DEFAULT_MEMORY_REGION) == 0 |
252b5132 | 5119 | && lang_memory_region_list != NULL |
4a93e180 | 5120 | && (strcmp (lang_memory_region_list->name_list.name, |
a747ee4d | 5121 | DEFAULT_MEMORY_REGION) != 0 |
e9ee469a AM |
5122 | || lang_memory_region_list->next != NULL) |
5123 | && expld.phase != lang_mark_phase_enum) | |
66184979 NC |
5124 | { |
5125 | /* By default this is an error rather than just a | |
5126 | warning because if we allocate the section to the | |
5127 | default memory region we can end up creating an | |
07f3b6ad KH |
5128 | excessively large binary, or even seg faulting when |
5129 | attempting to perform a negative seek. See | |
6feb9908 | 5130 | sources.redhat.com/ml/binutils/2003-04/msg00423.html |
66184979 NC |
5131 | for an example of this. This behaviour can be |
5132 | overridden by the using the --no-check-sections | |
5133 | switch. */ | |
5134 | if (command_line.check_section_addresses) | |
df5f2391 | 5135 | einfo (_("%F%P: error: no memory region specified" |
6feb9908 | 5136 | " for loadable section `%s'\n"), |
f13a99db | 5137 | bfd_get_section_name (link_info.output_bfd, |
66184979 NC |
5138 | os->bfd_section)); |
5139 | else | |
6feb9908 AM |
5140 | einfo (_("%P: warning: no memory region specified" |
5141 | " for loadable section `%s'\n"), | |
f13a99db | 5142 | bfd_get_section_name (link_info.output_bfd, |
66184979 NC |
5143 | os->bfd_section)); |
5144 | } | |
252b5132 | 5145 | |
e9ee469a | 5146 | newdot = os->region->current; |
c5b0a9ef | 5147 | section_alignment = os->bfd_section->alignment_power; |
252b5132 | 5148 | } |
94b50910 | 5149 | else |
c5b0a9ef | 5150 | section_alignment = os->section_alignment; |
5f992e62 | 5151 | |
7270c5ed | 5152 | /* Align to what the section needs. */ |
c5b0a9ef | 5153 | if (section_alignment > 0) |
94b50910 AM |
5154 | { |
5155 | bfd_vma savedot = newdot; | |
c5b0a9ef | 5156 | newdot = align_power (newdot, section_alignment); |
252b5132 | 5157 | |
13075d04 SH |
5158 | dotdelta = newdot - savedot; |
5159 | if (dotdelta != 0 | |
94b50910 AM |
5160 | && (config.warn_section_align |
5161 | || os->addr_tree != NULL) | |
5162 | && expld.phase != lang_mark_phase_enum) | |
992a06ee AM |
5163 | einfo (ngettext ("%P: warning: changing start of " |
5164 | "section %s by %lu byte\n", | |
5165 | "%P: warning: changing start of " | |
5166 | "section %s by %lu bytes\n", | |
5167 | (unsigned long) dotdelta), | |
13075d04 | 5168 | os->name, (unsigned long) dotdelta); |
94b50910 | 5169 | } |
252b5132 | 5170 | |
eceda120 | 5171 | bfd_set_section_vma (0, os->bfd_section, newdot); |
5f992e62 | 5172 | |
252b5132 RH |
5173 | os->bfd_section->output_offset = 0; |
5174 | } | |
5175 | ||
e535e147 | 5176 | lang_size_sections_1 (&os->children.head, os, |
e9ee469a AM |
5177 | os->fill, newdot, relax, check_regions); |
5178 | ||
cde9e0be | 5179 | os->processed_vma = TRUE; |
e9ee469a AM |
5180 | |
5181 | if (bfd_is_abs_section (os->bfd_section) || os->ignored) | |
2f475487 AM |
5182 | /* Except for some special linker created sections, |
5183 | no output section should change from zero size | |
5184 | after strip_excluded_output_sections. A non-zero | |
5185 | size on an ignored section indicates that some | |
5186 | input section was not sized early enough. */ | |
5187 | ASSERT (os->bfd_section->size == 0); | |
cde9e0be | 5188 | else |
e9ee469a | 5189 | { |
cde9e0be AM |
5190 | dot = os->bfd_section->vma; |
5191 | ||
5192 | /* Put the section within the requested block size, or | |
5193 | align at the block boundary. */ | |
5194 | after = ((dot | |
5195 | + TO_ADDR (os->bfd_section->size) | |
5196 | + os->block_value - 1) | |
5197 | & - (bfd_vma) os->block_value); | |
5198 | ||
8772de11 MR |
5199 | if (!(os->bfd_section->flags & SEC_FIXED_SIZE)) |
5200 | os->bfd_section->size = TO_SIZE (after | |
5201 | - os->bfd_section->vma); | |
cde9e0be AM |
5202 | } |
5203 | ||
5204 | /* Set section lma. */ | |
5205 | r = os->region; | |
5206 | if (r == NULL) | |
5207 | r = lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE); | |
5208 | ||
5209 | if (os->load_base) | |
5210 | { | |
5211 | bfd_vma lma = exp_get_abs_int (os->load_base, 0, "load base"); | |
5212 | os->bfd_section->lma = lma; | |
e9ee469a | 5213 | } |
07dfcf38 | 5214 | else if (os->lma_region != NULL) |
cde9e0be AM |
5215 | { |
5216 | bfd_vma lma = os->lma_region->current; | |
e9ee469a | 5217 | |
13075d04 SH |
5218 | if (os->align_lma_with_input) |
5219 | lma += dotdelta; | |
5220 | else | |
5221 | { | |
5222 | /* When LMA_REGION is the same as REGION, align the LMA | |
5223 | as we did for the VMA, possibly including alignment | |
5224 | from the bfd section. If a different region, then | |
5225 | only align according to the value in the output | |
5226 | statement. */ | |
5227 | if (os->lma_region != os->region) | |
5228 | section_alignment = os->section_alignment; | |
5229 | if (section_alignment > 0) | |
5230 | lma = align_power (lma, section_alignment); | |
5231 | } | |
cde9e0be AM |
5232 | os->bfd_section->lma = lma; |
5233 | } | |
dc0b6aa0 AM |
5234 | else if (r->last_os != NULL |
5235 | && (os->bfd_section->flags & SEC_ALLOC) != 0) | |
cde9e0be AM |
5236 | { |
5237 | bfd_vma lma; | |
5238 | asection *last; | |
5239 | ||
5240 | last = r->last_os->output_section_statement.bfd_section; | |
dc0b6aa0 AM |
5241 | |
5242 | /* A backwards move of dot should be accompanied by | |
5243 | an explicit assignment to the section LMA (ie. | |
91eb6c46 | 5244 | os->load_base set) because backwards moves can |
dc0b6aa0 | 5245 | create overlapping LMAs. */ |
264b6205 | 5246 | if (dot < last->vma |
91eb6c46 | 5247 | && os->bfd_section->size != 0 |
ca62bc4a | 5248 | && dot + TO_ADDR (os->bfd_section->size) <= last->vma) |
dc0b6aa0 | 5249 | { |
dc0b6aa0 AM |
5250 | /* If dot moved backwards then leave lma equal to |
5251 | vma. This is the old default lma, which might | |
5252 | just happen to work when the backwards move is | |
91eb6c46 AM |
5253 | sufficiently large. Nag if this changes anything, |
5254 | so people can fix their linker scripts. */ | |
5255 | ||
5256 | if (last->vma != last->lma) | |
0aa7f586 AM |
5257 | einfo (_("%P: warning: dot moved backwards " |
5258 | "before `%s'\n"), os->name); | |
dc0b6aa0 AM |
5259 | } |
5260 | else | |
cde9e0be | 5261 | { |
152d792f AM |
5262 | /* If this is an overlay, set the current lma to that |
5263 | at the end of the previous section. */ | |
5264 | if (os->sectype == overlay_section) | |
fc90c280 | 5265 | lma = last->lma + TO_ADDR (last->size); |
cde9e0be AM |
5266 | |
5267 | /* Otherwise, keep the same lma to vma relationship | |
5268 | as the previous section. */ | |
5269 | else | |
5270 | lma = dot + last->lma - last->vma; | |
5271 | ||
c5b0a9ef AM |
5272 | if (section_alignment > 0) |
5273 | lma = align_power (lma, section_alignment); | |
cde9e0be AM |
5274 | os->bfd_section->lma = lma; |
5275 | } | |
5276 | } | |
5277 | os->processed_lma = TRUE; | |
5f992e62 | 5278 | |
cde9e0be AM |
5279 | /* Keep track of normal sections using the default |
5280 | lma region. We use this to set the lma for | |
5281 | following sections. Overlays or other linker | |
5282 | script assignment to lma might mean that the | |
dc0b6aa0 AM |
5283 | default lma == vma is incorrect. |
5284 | To avoid warnings about dot moving backwards when using | |
5285 | -Ttext, don't start tracking sections until we find one | |
14ea2c1b AB |
5286 | of non-zero size or with lma set differently to vma. |
5287 | Do this tracking before we short-cut the loop so that we | |
5288 | track changes for the case where the section size is zero, | |
5289 | but the lma is set differently to the vma. This is | |
5290 | important, if an orphan section is placed after an | |
5291 | otherwise empty output section that has an explicit lma | |
5292 | set, we want that lma reflected in the orphans lma. */ | |
2e4a7aea | 5293 | if (!IGNORE_SECTION (os->bfd_section) |
dc0b6aa0 | 5294 | && (os->bfd_section->size != 0 |
264b6205 AM |
5295 | || (r->last_os == NULL |
5296 | && os->bfd_section->vma != os->bfd_section->lma) | |
5297 | || (r->last_os != NULL | |
5298 | && dot >= (r->last_os->output_section_statement | |
ea0c3cd5 | 5299 | .bfd_section->vma))) |
cde9e0be | 5300 | && os->lma_region == NULL |
0e1862bb | 5301 | && !bfd_link_relocatable (&link_info)) |
cde9e0be | 5302 | r->last_os = s; |
9f88b410 | 5303 | |
14ea2c1b AB |
5304 | if (bfd_is_abs_section (os->bfd_section) || os->ignored) |
5305 | break; | |
5306 | ||
e5caec89 | 5307 | /* .tbss sections effectively have zero size. */ |
2e4a7aea | 5308 | if (!IS_TBSS (os->bfd_section) |
0e1862bb | 5309 | || bfd_link_relocatable (&link_info)) |
13075d04 SH |
5310 | dotdelta = TO_ADDR (os->bfd_section->size); |
5311 | else | |
5312 | dotdelta = 0; | |
5313 | dot += dotdelta; | |
e5caec89 | 5314 | |
9f88b410 | 5315 | if (os->update_dot_tree != 0) |
e9ee469a | 5316 | exp_fold_tree (os->update_dot_tree, bfd_abs_section_ptr, &dot); |
9f88b410 | 5317 | |
252b5132 RH |
5318 | /* Update dot in the region ? |
5319 | We only do this if the section is going to be allocated, | |
5320 | since unallocated sections do not contribute to the region's | |
2e76e85a | 5321 | overall size in memory. */ |
1579bae1 | 5322 | if (os->region != NULL |
2e76e85a | 5323 | && (os->bfd_section->flags & (SEC_ALLOC | SEC_LOAD))) |
252b5132 RH |
5324 | { |
5325 | os->region->current = dot; | |
5f992e62 | 5326 | |
cf888e70 NC |
5327 | if (check_regions) |
5328 | /* Make sure the new address is within the region. */ | |
5329 | os_region_check (os, os->region, os->addr_tree, | |
5330 | os->bfd_section->vma); | |
08da4cac | 5331 | |
a2cab753 | 5332 | if (os->lma_region != NULL && os->lma_region != os->region |
13075d04 SH |
5333 | && ((os->bfd_section->flags & SEC_LOAD) |
5334 | || os->align_lma_with_input)) | |
08da4cac | 5335 | { |
13075d04 | 5336 | os->lma_region->current = os->bfd_section->lma + dotdelta; |
66e28d60 | 5337 | |
cf888e70 NC |
5338 | if (check_regions) |
5339 | os_region_check (os, os->lma_region, NULL, | |
cde9e0be | 5340 | os->bfd_section->lma); |
08da4cac | 5341 | } |
252b5132 RH |
5342 | } |
5343 | } | |
5344 | break; | |
5345 | ||
5346 | case lang_constructors_statement_enum: | |
e535e147 | 5347 | dot = lang_size_sections_1 (&constructor_list.head, |
2d20f7bf | 5348 | output_section_statement, |
cf888e70 | 5349 | fill, dot, relax, check_regions); |
252b5132 RH |
5350 | break; |
5351 | ||
5352 | case lang_data_statement_enum: | |
5353 | { | |
5354 | unsigned int size = 0; | |
5355 | ||
7fabd029 | 5356 | s->data_statement.output_offset = |
08da4cac | 5357 | dot - output_section_statement->bfd_section->vma; |
252b5132 RH |
5358 | s->data_statement.output_section = |
5359 | output_section_statement->bfd_section; | |
5360 | ||
1b493742 NS |
5361 | /* We might refer to provided symbols in the expression, and |
5362 | need to mark them as needed. */ | |
e9ee469a | 5363 | exp_fold_tree (s->data_statement.exp, bfd_abs_section_ptr, &dot); |
1b493742 | 5364 | |
252b5132 RH |
5365 | switch (s->data_statement.type) |
5366 | { | |
08da4cac KH |
5367 | default: |
5368 | abort (); | |
252b5132 RH |
5369 | case QUAD: |
5370 | case SQUAD: | |
5371 | size = QUAD_SIZE; | |
5372 | break; | |
5373 | case LONG: | |
5374 | size = LONG_SIZE; | |
5375 | break; | |
5376 | case SHORT: | |
5377 | size = SHORT_SIZE; | |
5378 | break; | |
5379 | case BYTE: | |
5380 | size = BYTE_SIZE; | |
5381 | break; | |
5382 | } | |
e5caa5e0 AM |
5383 | if (size < TO_SIZE ((unsigned) 1)) |
5384 | size = TO_SIZE ((unsigned) 1); | |
5385 | dot += TO_ADDR (size); | |
8772de11 MR |
5386 | if (!(output_section_statement->bfd_section->flags |
5387 | & SEC_FIXED_SIZE)) | |
5388 | output_section_statement->bfd_section->size | |
5389 | = TO_SIZE (dot - output_section_statement->bfd_section->vma); | |
aa4c3319 | 5390 | |
252b5132 RH |
5391 | } |
5392 | break; | |
5393 | ||
5394 | case lang_reloc_statement_enum: | |
5395 | { | |
5396 | int size; | |
5397 | ||
7fabd029 | 5398 | s->reloc_statement.output_offset = |
252b5132 RH |
5399 | dot - output_section_statement->bfd_section->vma; |
5400 | s->reloc_statement.output_section = | |
5401 | output_section_statement->bfd_section; | |
5402 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
e5caa5e0 | 5403 | dot += TO_ADDR (size); |
8772de11 MR |
5404 | if (!(output_section_statement->bfd_section->flags |
5405 | & SEC_FIXED_SIZE)) | |
5406 | output_section_statement->bfd_section->size | |
5407 | = TO_SIZE (dot - output_section_statement->bfd_section->vma); | |
252b5132 RH |
5408 | } |
5409 | break; | |
5f992e62 | 5410 | |
252b5132 | 5411 | case lang_wild_statement_enum: |
e535e147 | 5412 | dot = lang_size_sections_1 (&s->wild_statement.children.head, |
2d20f7bf | 5413 | output_section_statement, |
cf888e70 | 5414 | fill, dot, relax, check_regions); |
252b5132 RH |
5415 | break; |
5416 | ||
5417 | case lang_object_symbols_statement_enum: | |
5418 | link_info.create_object_symbols_section = | |
5419 | output_section_statement->bfd_section; | |
5420 | break; | |
e9ee469a | 5421 | |
252b5132 RH |
5422 | case lang_output_statement_enum: |
5423 | case lang_target_statement_enum: | |
5424 | break; | |
e9ee469a | 5425 | |
252b5132 RH |
5426 | case lang_input_section_enum: |
5427 | { | |
5428 | asection *i; | |
5429 | ||
e535e147 | 5430 | i = s->input_section.section; |
eea6121a | 5431 | if (relax) |
252b5132 | 5432 | { |
b34976b6 | 5433 | bfd_boolean again; |
252b5132 | 5434 | |
0aa7f586 | 5435 | if (!bfd_relax_section (i->owner, i, &link_info, &again)) |
df5f2391 | 5436 | einfo (_("%F%P: can't relax section: %E\n")); |
252b5132 | 5437 | if (again) |
b34976b6 | 5438 | *relax = TRUE; |
252b5132 | 5439 | } |
b3327aad | 5440 | dot = size_input_section (prev, output_section_statement, |
ffe54b37 | 5441 | fill, dot); |
252b5132 RH |
5442 | } |
5443 | break; | |
e9ee469a | 5444 | |
252b5132 RH |
5445 | case lang_input_statement_enum: |
5446 | break; | |
e9ee469a | 5447 | |
252b5132 | 5448 | case lang_fill_statement_enum: |
08da4cac KH |
5449 | s->fill_statement.output_section = |
5450 | output_section_statement->bfd_section; | |
252b5132 RH |
5451 | |
5452 | fill = s->fill_statement.fill; | |
5453 | break; | |
e9ee469a | 5454 | |
252b5132 RH |
5455 | case lang_assignment_statement_enum: |
5456 | { | |
5457 | bfd_vma newdot = dot; | |
49c13adb | 5458 | etree_type *tree = s->assignment_statement.exp; |
252b5132 | 5459 | |
0f99513f | 5460 | expld.dataseg.relro = exp_seg_relro_none; |
b10a8ae0 | 5461 | |
49c13adb | 5462 | exp_fold_tree (tree, |
408082ec | 5463 | output_section_statement->bfd_section, |
252b5132 RH |
5464 | &newdot); |
5465 | ||
ed1794ee L |
5466 | ldlang_check_relro_region (s, &expld.dataseg); |
5467 | ||
0f99513f | 5468 | expld.dataseg.relro = exp_seg_relro_none; |
b10a8ae0 | 5469 | |
d2667025 | 5470 | /* This symbol may be relative to this section. */ |
a14a5de3 | 5471 | if ((tree->type.node_class == etree_provided |
49c13adb L |
5472 | || tree->type.node_class == etree_assign) |
5473 | && (tree->assign.dst [0] != '.' | |
5474 | || tree->assign.dst [1] != '\0')) | |
6d8bf25d | 5475 | output_section_statement->update_dot = 1; |
49c13adb | 5476 | |
85852e36 | 5477 | if (!output_section_statement->ignored) |
252b5132 | 5478 | { |
252b5132 RH |
5479 | if (output_section_statement == abs_output_section) |
5480 | { | |
5481 | /* If we don't have an output section, then just adjust | |
5482 | the default memory address. */ | |
6feb9908 AM |
5483 | lang_memory_region_lookup (DEFAULT_MEMORY_REGION, |
5484 | FALSE)->current = newdot; | |
252b5132 | 5485 | } |
85852e36 | 5486 | else if (newdot != dot) |
252b5132 | 5487 | { |
b3327aad AM |
5488 | /* Insert a pad after this statement. We can't |
5489 | put the pad before when relaxing, in case the | |
5490 | assignment references dot. */ | |
e5caa5e0 | 5491 | insert_pad (&s->header.next, fill, TO_SIZE (newdot - dot), |
b3327aad AM |
5492 | output_section_statement->bfd_section, dot); |
5493 | ||
5494 | /* Don't neuter the pad below when relaxing. */ | |
5495 | s = s->header.next; | |
9dfc8ab2 | 5496 | |
e9ee469a AM |
5497 | /* If dot is advanced, this implies that the section |
5498 | should have space allocated to it, unless the | |
5499 | user has explicitly stated that the section | |
2e76e85a | 5500 | should not be allocated. */ |
f4eaaf7f AM |
5501 | if (output_section_statement->sectype != noalloc_section |
5502 | && (output_section_statement->sectype != noload_section | |
5503 | || (bfd_get_flavour (link_info.output_bfd) | |
5504 | == bfd_target_elf_flavour))) | |
e9ee469a AM |
5505 | output_section_statement->bfd_section->flags |= SEC_ALLOC; |
5506 | } | |
252b5132 RH |
5507 | dot = newdot; |
5508 | } | |
5509 | } | |
5510 | break; | |
5511 | ||
5512 | case lang_padding_statement_enum: | |
c0c330a7 AM |
5513 | /* If this is the first time lang_size_sections is called, |
5514 | we won't have any padding statements. If this is the | |
5515 | second or later passes when relaxing, we should allow | |
5516 | padding to shrink. If padding is needed on this pass, it | |
5517 | will be added back in. */ | |
5518 | s->padding_statement.size = 0; | |
6e814ff8 AM |
5519 | |
5520 | /* Make sure output_offset is valid. If relaxation shrinks | |
5521 | the section and this pad isn't needed, it's possible to | |
5522 | have output_offset larger than the final size of the | |
5523 | section. bfd_set_section_contents will complain even for | |
5524 | a pad size of zero. */ | |
5525 | s->padding_statement.output_offset | |
5526 | = dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
5527 | break; |
5528 | ||
5529 | case lang_group_statement_enum: | |
e535e147 | 5530 | dot = lang_size_sections_1 (&s->group_statement.children.head, |
2d20f7bf | 5531 | output_section_statement, |
cf888e70 | 5532 | fill, dot, relax, check_regions); |
252b5132 RH |
5533 | break; |
5534 | ||
53d25da6 | 5535 | case lang_insert_statement_enum: |
252b5132 RH |
5536 | break; |
5537 | ||
c0c330a7 | 5538 | /* We can only get here when relaxing is turned on. */ |
252b5132 RH |
5539 | case lang_address_statement_enum: |
5540 | break; | |
53d25da6 AM |
5541 | |
5542 | default: | |
5543 | FAIL (); | |
5544 | break; | |
252b5132 RH |
5545 | } |
5546 | prev = &s->header.next; | |
5547 | } | |
5548 | return dot; | |
5549 | } | |
5550 | ||
591a748a NC |
5551 | /* Callback routine that is used in _bfd_elf_map_sections_to_segments. |
5552 | The BFD library has set NEW_SEGMENT to TRUE iff it thinks that | |
5553 | CURRENT_SECTION and PREVIOUS_SECTION ought to be placed into different | |
5554 | segments. We are allowed an opportunity to override this decision. */ | |
2889e75b NC |
5555 | |
5556 | bfd_boolean | |
0aa7f586 AM |
5557 | ldlang_override_segment_assignment (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
5558 | bfd *abfd ATTRIBUTE_UNUSED, | |
5559 | asection *current_section, | |
5560 | asection *previous_section, | |
2889e75b NC |
5561 | bfd_boolean new_segment) |
5562 | { | |
0aa7f586 AM |
5563 | lang_output_section_statement_type *cur; |
5564 | lang_output_section_statement_type *prev; | |
591a748a NC |
5565 | |
5566 | /* The checks below are only necessary when the BFD library has decided | |
5567 | that the two sections ought to be placed into the same segment. */ | |
2889e75b NC |
5568 | if (new_segment) |
5569 | return TRUE; | |
5570 | ||
5571 | /* Paranoia checks. */ | |
5572 | if (current_section == NULL || previous_section == NULL) | |
5573 | return new_segment; | |
5574 | ||
4724d37e RM |
5575 | /* If this flag is set, the target never wants code and non-code |
5576 | sections comingled in the same segment. */ | |
5577 | if (config.separate_code | |
5578 | && ((current_section->flags ^ previous_section->flags) & SEC_CODE)) | |
5579 | return TRUE; | |
5580 | ||
2889e75b NC |
5581 | /* Find the memory regions associated with the two sections. |
5582 | We call lang_output_section_find() here rather than scanning the list | |
5583 | of output sections looking for a matching section pointer because if | |
591a748a | 5584 | we have a large number of sections then a hash lookup is faster. */ |
2889e75b NC |
5585 | cur = lang_output_section_find (current_section->name); |
5586 | prev = lang_output_section_find (previous_section->name); | |
5587 | ||
591a748a | 5588 | /* More paranoia. */ |
2889e75b NC |
5589 | if (cur == NULL || prev == NULL) |
5590 | return new_segment; | |
5591 | ||
5592 | /* If the regions are different then force the sections to live in | |
591a748a NC |
5593 | different segments. See the email thread starting at the following |
5594 | URL for the reasons why this is necessary: | |
2889e75b NC |
5595 | http://sourceware.org/ml/binutils/2007-02/msg00216.html */ |
5596 | return cur->region != prev->region; | |
5597 | } | |
5598 | ||
e9ee469a AM |
5599 | void |
5600 | one_lang_size_sections_pass (bfd_boolean *relax, bfd_boolean check_regions) | |
2d20f7bf | 5601 | { |
420e579c | 5602 | lang_statement_iteration++; |
e535e147 AM |
5603 | lang_size_sections_1 (&statement_list.head, abs_output_section, |
5604 | 0, 0, relax, check_regions); | |
e9ee469a | 5605 | } |
420e579c | 5606 | |
cba6246d L |
5607 | static bfd_boolean |
5608 | lang_size_segment (seg_align_type *seg) | |
e9ee469a | 5609 | { |
cba6246d L |
5610 | /* If XXX_SEGMENT_ALIGN XXX_SEGMENT_END pair was seen, check whether |
5611 | a page could be saved in the data segment. */ | |
5612 | bfd_vma first, last; | |
5613 | ||
5614 | first = -seg->base & (seg->pagesize - 1); | |
5615 | last = seg->end & (seg->pagesize - 1); | |
5616 | if (first && last | |
5617 | && ((seg->base & ~(seg->pagesize - 1)) | |
5618 | != (seg->end & ~(seg->pagesize - 1))) | |
5619 | && first + last <= seg->pagesize) | |
8c37241b | 5620 | { |
cba6246d L |
5621 | seg->phase = exp_seg_adjust; |
5622 | return TRUE; | |
5623 | } | |
5624 | ||
5625 | seg->phase = exp_seg_done; | |
5626 | return FALSE; | |
5627 | } | |
5628 | ||
5629 | static bfd_vma | |
5630 | lang_size_relro_segment_1 (seg_align_type *seg) | |
5631 | { | |
5632 | bfd_vma relro_end, desired_end; | |
5633 | asection *sec; | |
8c37241b | 5634 | |
cba6246d L |
5635 | /* Compute the expected PT_GNU_RELRO/PT_LOAD segment end. */ |
5636 | relro_end = ((seg->relro_end + seg->pagesize - 1) | |
5637 | & ~(seg->pagesize - 1)); | |
0e5fabeb | 5638 | |
cba6246d L |
5639 | /* Adjust by the offset arg of XXX_SEGMENT_RELRO_END. */ |
5640 | desired_end = relro_end - seg->relro_offset; | |
0e5fabeb | 5641 | |
cba6246d L |
5642 | /* For sections in the relro segment.. */ |
5643 | for (sec = link_info.output_bfd->section_last; sec; sec = sec->prev) | |
5644 | if ((sec->flags & SEC_ALLOC) != 0 | |
5645 | && sec->vma >= seg->base | |
5646 | && sec->vma < seg->relro_end - seg->relro_offset) | |
5647 | { | |
5648 | /* Where do we want to put this section so that it ends as | |
5649 | desired? */ | |
5650 | bfd_vma start, end, bump; | |
5651 | ||
5652 | end = start = sec->vma; | |
5653 | if (!IS_TBSS (sec)) | |
5654 | end += TO_ADDR (sec->size); | |
5655 | bump = desired_end - end; | |
5656 | /* We'd like to increase START by BUMP, but we must heed | |
5657 | alignment so the increase might be less than optimum. */ | |
5658 | start += bump; | |
5659 | start &= ~(((bfd_vma) 1 << sec->alignment_power) - 1); | |
5660 | /* This is now the desired end for the previous section. */ | |
5661 | desired_end = start; | |
5662 | } | |
5663 | ||
5664 | seg->phase = exp_seg_relro_adjust; | |
5665 | ASSERT (desired_end >= seg->base); | |
5666 | seg->base = desired_end; | |
5667 | return relro_end; | |
5668 | } | |
5669 | ||
5670 | static bfd_boolean | |
5671 | lang_size_relro_segment (bfd_boolean *relax, bfd_boolean check_regions) | |
5672 | { | |
5673 | bfd_boolean do_reset = FALSE; | |
5674 | bfd_boolean do_data_relro; | |
5675 | bfd_vma data_initial_base, data_relro_end; | |
5676 | ||
5677 | if (link_info.relro && expld.dataseg.relro_end) | |
5678 | { | |
5679 | do_data_relro = TRUE; | |
5680 | data_initial_base = expld.dataseg.base; | |
5681 | data_relro_end = lang_size_relro_segment_1 (&expld.dataseg); | |
5682 | } | |
5683 | else | |
5684 | { | |
5685 | do_data_relro = FALSE; | |
5686 | data_initial_base = data_relro_end = 0; | |
5687 | } | |
0e5fabeb | 5688 | |
cba6246d L |
5689 | if (do_data_relro) |
5690 | { | |
f86a8756 | 5691 | lang_reset_memory_regions (); |
e9ee469a | 5692 | one_lang_size_sections_pass (relax, check_regions); |
0e5fabeb | 5693 | |
cba6246d L |
5694 | /* Assignments to dot, or to output section address in a user |
5695 | script have increased padding over the original. Revert. */ | |
5696 | if (do_data_relro && expld.dataseg.relro_end > data_relro_end) | |
a4f5ad88 | 5697 | { |
cba6246d L |
5698 | expld.dataseg.base = data_initial_base;; |
5699 | do_reset = TRUE; | |
a4f5ad88 | 5700 | } |
8c37241b | 5701 | } |
cba6246d L |
5702 | |
5703 | if (!do_data_relro && lang_size_segment (&expld.dataseg)) | |
5704 | do_reset = TRUE; | |
5705 | ||
5706 | return do_reset; | |
5707 | } | |
5708 | ||
5709 | void | |
5710 | lang_size_sections (bfd_boolean *relax, bfd_boolean check_regions) | |
5711 | { | |
5712 | expld.phase = lang_allocating_phase_enum; | |
5713 | expld.dataseg.phase = exp_seg_none; | |
5714 | ||
5715 | one_lang_size_sections_pass (relax, check_regions); | |
5716 | ||
5717 | if (expld.dataseg.phase != exp_seg_end_seen) | |
5718 | expld.dataseg.phase = exp_seg_done; | |
5719 | ||
5720 | if (expld.dataseg.phase == exp_seg_end_seen) | |
2d20f7bf | 5721 | { |
cba6246d L |
5722 | bfd_boolean do_reset |
5723 | = lang_size_relro_segment (relax, check_regions); | |
5724 | ||
5725 | if (do_reset) | |
2d20f7bf | 5726 | { |
f86a8756 | 5727 | lang_reset_memory_regions (); |
e9ee469a | 5728 | one_lang_size_sections_pass (relax, check_regions); |
2d20f7bf | 5729 | } |
cba6246d L |
5730 | |
5731 | if (link_info.relro && expld.dataseg.relro_end) | |
5732 | { | |
5733 | link_info.relro_start = expld.dataseg.base; | |
5734 | link_info.relro_end = expld.dataseg.relro_end; | |
5735 | } | |
2d20f7bf | 5736 | } |
2d20f7bf JJ |
5737 | } |
5738 | ||
d2667025 AM |
5739 | static lang_output_section_statement_type *current_section; |
5740 | static lang_assignment_statement_type *current_assign; | |
5741 | static bfd_boolean prefer_next_section; | |
5742 | ||
420e579c HPN |
5743 | /* Worker function for lang_do_assignments. Recursiveness goes here. */ |
5744 | ||
5745 | static bfd_vma | |
66e28d60 AM |
5746 | lang_do_assignments_1 (lang_statement_union_type *s, |
5747 | lang_output_section_statement_type *current_os, | |
5748 | fill_type *fill, | |
d2667025 AM |
5749 | bfd_vma dot, |
5750 | bfd_boolean *found_end) | |
252b5132 | 5751 | { |
1579bae1 | 5752 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
5753 | { |
5754 | switch (s->header.type) | |
5755 | { | |
5756 | case lang_constructors_statement_enum: | |
420e579c | 5757 | dot = lang_do_assignments_1 (constructor_list.head, |
d2667025 | 5758 | current_os, fill, dot, found_end); |
252b5132 RH |
5759 | break; |
5760 | ||
5761 | case lang_output_section_statement_enum: | |
5762 | { | |
d1778b88 | 5763 | lang_output_section_statement_type *os; |
f02cb058 | 5764 | bfd_vma newdot; |
252b5132 | 5765 | |
d1778b88 | 5766 | os = &(s->output_section_statement); |
d2667025 | 5767 | os->after_end = *found_end; |
75ff4589 | 5768 | if (os->bfd_section != NULL && !os->ignored) |
252b5132 | 5769 | { |
d2667025 AM |
5770 | if ((os->bfd_section->flags & SEC_ALLOC) != 0) |
5771 | { | |
5772 | current_section = os; | |
5773 | prefer_next_section = FALSE; | |
5774 | } | |
252b5132 | 5775 | dot = os->bfd_section->vma; |
f02cb058 AM |
5776 | } |
5777 | newdot = lang_do_assignments_1 (os->children.head, | |
5778 | os, os->fill, dot, found_end); | |
5779 | if (!os->ignored) | |
5780 | { | |
5781 | if (os->bfd_section != NULL) | |
5782 | { | |
5783 | /* .tbss sections effectively have zero size. */ | |
5784 | if (!IS_TBSS (os->bfd_section) | |
5785 | || bfd_link_relocatable (&link_info)) | |
5786 | dot += TO_ADDR (os->bfd_section->size); | |
5787 | ||
5788 | if (os->update_dot_tree != NULL) | |
5789 | exp_fold_tree (os->update_dot_tree, | |
5790 | bfd_abs_section_ptr, &dot); | |
5791 | } | |
5792 | else | |
5793 | dot = newdot; | |
252b5132 RH |
5794 | } |
5795 | } | |
5796 | break; | |
e9ee469a | 5797 | |
252b5132 RH |
5798 | case lang_wild_statement_enum: |
5799 | ||
420e579c | 5800 | dot = lang_do_assignments_1 (s->wild_statement.children.head, |
d2667025 | 5801 | current_os, fill, dot, found_end); |
252b5132 RH |
5802 | break; |
5803 | ||
5804 | case lang_object_symbols_statement_enum: | |
5805 | case lang_output_statement_enum: | |
5806 | case lang_target_statement_enum: | |
252b5132 | 5807 | break; |
e9ee469a | 5808 | |
252b5132 | 5809 | case lang_data_statement_enum: |
e9ee469a AM |
5810 | exp_fold_tree (s->data_statement.exp, bfd_abs_section_ptr, &dot); |
5811 | if (expld.result.valid_p) | |
7542af2a AM |
5812 | { |
5813 | s->data_statement.value = expld.result.value; | |
5814 | if (expld.result.section != NULL) | |
5815 | s->data_statement.value += expld.result.section->vma; | |
5816 | } | |
f02cb058 | 5817 | else if (expld.phase == lang_final_phase_enum) |
e9ee469a | 5818 | einfo (_("%F%P: invalid data statement\n")); |
b7a26f91 KH |
5819 | { |
5820 | unsigned int size; | |
08da4cac KH |
5821 | switch (s->data_statement.type) |
5822 | { | |
5823 | default: | |
5824 | abort (); | |
5825 | case QUAD: | |
5826 | case SQUAD: | |
5827 | size = QUAD_SIZE; | |
5828 | break; | |
5829 | case LONG: | |
5830 | size = LONG_SIZE; | |
5831 | break; | |
5832 | case SHORT: | |
5833 | size = SHORT_SIZE; | |
5834 | break; | |
5835 | case BYTE: | |
5836 | size = BYTE_SIZE; | |
5837 | break; | |
5838 | } | |
e5caa5e0 AM |
5839 | if (size < TO_SIZE ((unsigned) 1)) |
5840 | size = TO_SIZE ((unsigned) 1); | |
5841 | dot += TO_ADDR (size); | |
08da4cac | 5842 | } |
252b5132 RH |
5843 | break; |
5844 | ||
5845 | case lang_reloc_statement_enum: | |
e9ee469a AM |
5846 | exp_fold_tree (s->reloc_statement.addend_exp, |
5847 | bfd_abs_section_ptr, &dot); | |
5848 | if (expld.result.valid_p) | |
5849 | s->reloc_statement.addend_value = expld.result.value; | |
f02cb058 | 5850 | else if (expld.phase == lang_final_phase_enum) |
e9ee469a | 5851 | einfo (_("%F%P: invalid reloc statement\n")); |
e5caa5e0 | 5852 | dot += TO_ADDR (bfd_get_reloc_size (s->reloc_statement.howto)); |
252b5132 RH |
5853 | break; |
5854 | ||
5855 | case lang_input_section_enum: | |
5856 | { | |
5857 | asection *in = s->input_section.section; | |
5858 | ||
57ceae94 | 5859 | if ((in->flags & SEC_EXCLUDE) == 0) |
eea6121a | 5860 | dot += TO_ADDR (in->size); |
252b5132 RH |
5861 | } |
5862 | break; | |
5863 | ||
5864 | case lang_input_statement_enum: | |
5865 | break; | |
e9ee469a | 5866 | |
252b5132 RH |
5867 | case lang_fill_statement_enum: |
5868 | fill = s->fill_statement.fill; | |
5869 | break; | |
252b5132 | 5870 | |
e9ee469a | 5871 | case lang_assignment_statement_enum: |
d2667025 AM |
5872 | current_assign = &s->assignment_statement; |
5873 | if (current_assign->exp->type.node_class != etree_assert) | |
5874 | { | |
5875 | const char *p = current_assign->exp->assign.dst; | |
5876 | ||
5877 | if (current_os == abs_output_section && p[0] == '.' && p[1] == 0) | |
5878 | prefer_next_section = TRUE; | |
5879 | ||
5880 | while (*p == '_') | |
5881 | ++p; | |
5882 | if (strcmp (p, "end") == 0) | |
5883 | *found_end = TRUE; | |
5884 | } | |
e9ee469a | 5885 | exp_fold_tree (s->assignment_statement.exp, |
f02cb058 AM |
5886 | (current_os->bfd_section != NULL |
5887 | ? current_os->bfd_section : bfd_und_section_ptr), | |
e9ee469a | 5888 | &dot); |
252b5132 | 5889 | break; |
e9ee469a | 5890 | |
252b5132 | 5891 | case lang_padding_statement_enum: |
e5caa5e0 | 5892 | dot += TO_ADDR (s->padding_statement.size); |
252b5132 RH |
5893 | break; |
5894 | ||
5895 | case lang_group_statement_enum: | |
420e579c | 5896 | dot = lang_do_assignments_1 (s->group_statement.children.head, |
d2667025 | 5897 | current_os, fill, dot, found_end); |
252b5132 RH |
5898 | break; |
5899 | ||
53d25da6 | 5900 | case lang_insert_statement_enum: |
252b5132 | 5901 | break; |
e9ee469a | 5902 | |
252b5132 RH |
5903 | case lang_address_statement_enum: |
5904 | break; | |
53d25da6 AM |
5905 | |
5906 | default: | |
5907 | FAIL (); | |
5908 | break; | |
252b5132 | 5909 | } |
252b5132 RH |
5910 | } |
5911 | return dot; | |
5912 | } | |
5913 | ||
f2241121 | 5914 | void |
2f65ac72 | 5915 | lang_do_assignments (lang_phase_type phase) |
420e579c | 5916 | { |
d2667025 AM |
5917 | bfd_boolean found_end = FALSE; |
5918 | ||
5919 | current_section = NULL; | |
5920 | prefer_next_section = FALSE; | |
2f65ac72 | 5921 | expld.phase = phase; |
420e579c | 5922 | lang_statement_iteration++; |
d2667025 AM |
5923 | lang_do_assignments_1 (statement_list.head, |
5924 | abs_output_section, NULL, 0, &found_end); | |
5925 | } | |
5926 | ||
5927 | /* For an assignment statement outside of an output section statement, | |
5928 | choose the best of neighbouring output sections to use for values | |
5929 | of "dot". */ | |
5930 | ||
5931 | asection * | |
5932 | section_for_dot (void) | |
5933 | { | |
5934 | asection *s; | |
5935 | ||
5936 | /* Assignments belong to the previous output section, unless there | |
5937 | has been an assignment to "dot", in which case following | |
5938 | assignments belong to the next output section. (The assumption | |
5939 | is that an assignment to "dot" is setting up the address for the | |
5940 | next output section.) Except that past the assignment to "_end" | |
5941 | we always associate with the previous section. This exception is | |
5942 | for targets like SH that define an alloc .stack or other | |
5943 | weirdness after non-alloc sections. */ | |
5944 | if (current_section == NULL || prefer_next_section) | |
5945 | { | |
5946 | lang_statement_union_type *stmt; | |
5947 | lang_output_section_statement_type *os; | |
5948 | ||
5949 | for (stmt = (lang_statement_union_type *) current_assign; | |
5950 | stmt != NULL; | |
5951 | stmt = stmt->header.next) | |
5952 | if (stmt->header.type == lang_output_section_statement_enum) | |
5953 | break; | |
5954 | ||
5955 | os = &stmt->output_section_statement; | |
5956 | while (os != NULL | |
5957 | && !os->after_end | |
5958 | && (os->bfd_section == NULL | |
5959 | || (os->bfd_section->flags & SEC_EXCLUDE) != 0 | |
5960 | || bfd_section_removed_from_list (link_info.output_bfd, | |
5961 | os->bfd_section))) | |
5962 | os = os->next; | |
5963 | ||
5964 | if (current_section == NULL || os == NULL || !os->after_end) | |
5965 | { | |
5966 | if (os != NULL) | |
5967 | s = os->bfd_section; | |
5968 | else | |
5969 | s = link_info.output_bfd->section_last; | |
5970 | while (s != NULL | |
5971 | && ((s->flags & SEC_ALLOC) == 0 | |
5972 | || (s->flags & SEC_THREAD_LOCAL) != 0)) | |
5973 | s = s->prev; | |
5974 | if (s != NULL) | |
5975 | return s; | |
5976 | ||
5977 | return bfd_abs_section_ptr; | |
5978 | } | |
5979 | } | |
5980 | ||
5981 | s = current_section->bfd_section; | |
5982 | ||
5983 | /* The section may have been stripped. */ | |
5984 | while (s != NULL | |
5985 | && ((s->flags & SEC_EXCLUDE) != 0 | |
5986 | || (s->flags & SEC_ALLOC) == 0 | |
5987 | || (s->flags & SEC_THREAD_LOCAL) != 0 | |
5988 | || bfd_section_removed_from_list (link_info.output_bfd, s))) | |
5989 | s = s->prev; | |
5990 | if (s == NULL) | |
5991 | s = link_info.output_bfd->sections; | |
5992 | while (s != NULL | |
5993 | && ((s->flags & SEC_ALLOC) == 0 | |
5994 | || (s->flags & SEC_THREAD_LOCAL) != 0)) | |
5995 | s = s->next; | |
5996 | if (s != NULL) | |
5997 | return s; | |
5998 | ||
5999 | return bfd_abs_section_ptr; | |
420e579c HPN |
6000 | } |
6001 | ||
7dba9362 AM |
6002 | /* Array of __start/__stop/.startof./.sizeof/ symbols. */ |
6003 | ||
6004 | static struct bfd_link_hash_entry **start_stop_syms; | |
6005 | static size_t start_stop_count = 0; | |
6006 | static size_t start_stop_alloc = 0; | |
6007 | ||
6008 | /* Give start/stop SYMBOL for SEC a preliminary definition, and add it | |
6009 | to start_stop_syms. */ | |
6010 | ||
6011 | static void | |
6012 | lang_define_start_stop (const char *symbol, asection *sec) | |
6013 | { | |
6014 | struct bfd_link_hash_entry *h; | |
6015 | ||
6016 | h = bfd_define_start_stop (link_info.output_bfd, &link_info, symbol, sec); | |
6017 | if (h != NULL) | |
6018 | { | |
6019 | if (start_stop_count == start_stop_alloc) | |
6020 | { | |
6021 | start_stop_alloc = 2 * start_stop_alloc + 10; | |
6022 | start_stop_syms | |
6023 | = xrealloc (start_stop_syms, | |
6024 | start_stop_alloc * sizeof (*start_stop_syms)); | |
6025 | } | |
6026 | start_stop_syms[start_stop_count++] = h; | |
6027 | } | |
6028 | } | |
6029 | ||
6030 | /* Check for input sections whose names match references to | |
6031 | __start_SECNAME or __stop_SECNAME symbols. Give the symbols | |
6032 | preliminary definitions. */ | |
252b5132 RH |
6033 | |
6034 | static void | |
7dba9362 | 6035 | lang_init_start_stop (void) |
252b5132 | 6036 | { |
7dba9362 | 6037 | bfd *abfd; |
252b5132 | 6038 | asection *s; |
7dba9362 AM |
6039 | char leading_char = bfd_get_symbol_leading_char (link_info.output_bfd); |
6040 | ||
6041 | for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next) | |
6042 | for (s = abfd->sections; s != NULL; s = s->next) | |
6043 | { | |
6044 | const char *ps; | |
6045 | const char *secname = s->name; | |
6046 | ||
6047 | for (ps = secname; *ps != '\0'; ps++) | |
6048 | if (!ISALNUM ((unsigned char) *ps) && *ps != '_') | |
6049 | break; | |
6050 | if (*ps == '\0') | |
6051 | { | |
6052 | char *symbol = (char *) xmalloc (10 + strlen (secname)); | |
b27685f2 | 6053 | |
7dba9362 AM |
6054 | symbol[0] = leading_char; |
6055 | sprintf (symbol + (leading_char != 0), "__start_%s", secname); | |
6056 | lang_define_start_stop (symbol, s); | |
6057 | ||
6058 | symbol[1] = leading_char; | |
6059 | memcpy (symbol + 1 + (leading_char != 0), "__stop", 6); | |
6060 | lang_define_start_stop (symbol + 1, s); | |
6061 | ||
6062 | free (symbol); | |
6063 | } | |
6064 | } | |
6065 | } | |
6066 | ||
6067 | /* Iterate over start_stop_syms. */ | |
6068 | ||
6069 | static void | |
6070 | foreach_start_stop (void (*func) (struct bfd_link_hash_entry *)) | |
6071 | { | |
6072 | size_t i; | |
6073 | ||
6074 | for (i = 0; i < start_stop_count; ++i) | |
6075 | func (start_stop_syms[i]); | |
6076 | } | |
6077 | ||
6078 | /* __start and __stop symbols are only supposed to be defined by the | |
6079 | linker for orphan sections, but we now extend that to sections that | |
6080 | map to an output section of the same name. The symbols were | |
6081 | defined early for --gc-sections, before we mapped input to output | |
6082 | sections, so undo those that don't satisfy this rule. */ | |
6083 | ||
6084 | static void | |
6085 | undef_start_stop (struct bfd_link_hash_entry *h) | |
6086 | { | |
6087 | if (h->ldscript_def) | |
b27685f2 L |
6088 | return; |
6089 | ||
7dba9362 AM |
6090 | if (h->u.def.section->output_section == NULL |
6091 | || h->u.def.section->output_section->owner != link_info.output_bfd | |
6092 | || strcmp (h->u.def.section->name, | |
6093 | h->u.def.section->output_section->name) != 0) | |
6094 | { | |
6095 | h->type = bfd_link_hash_undefined; | |
6096 | h->u.undef.abfd = NULL; | |
6097 | } | |
6098 | } | |
252b5132 | 6099 | |
7dba9362 AM |
6100 | static void |
6101 | lang_undef_start_stop (void) | |
6102 | { | |
6103 | foreach_start_stop (undef_start_stop); | |
6104 | } | |
6105 | ||
6106 | /* Check for output sections whose names match references to | |
6107 | .startof.SECNAME or .sizeof.SECNAME symbols. Give the symbols | |
6108 | preliminary definitions. */ | |
6109 | ||
6110 | static void | |
6111 | lang_init_startof_sizeof (void) | |
6112 | { | |
6113 | asection *s; | |
252b5132 | 6114 | |
f13a99db | 6115 | for (s = link_info.output_bfd->sections; s != NULL; s = s->next) |
252b5132 | 6116 | { |
7dba9362 AM |
6117 | const char *secname = s->name; |
6118 | char *symbol = (char *) xmalloc (10 + strlen (secname)); | |
252b5132 | 6119 | |
7dba9362 AM |
6120 | sprintf (symbol, ".startof.%s", secname); |
6121 | lang_define_start_stop (symbol, s); | |
252b5132 | 6122 | |
7dba9362 AM |
6123 | memcpy (symbol + 1, ".size", 5); |
6124 | lang_define_start_stop (symbol + 1, s); | |
6125 | free (symbol); | |
6126 | } | |
6127 | } | |
cbd0eecf | 6128 | |
7dba9362 AM |
6129 | /* Set .startof., .sizeof., __start and __stop symbols final values. */ |
6130 | ||
6131 | static void | |
6132 | set_start_stop (struct bfd_link_hash_entry *h) | |
6133 | { | |
6134 | if (h->ldscript_def | |
6135 | || h->type != bfd_link_hash_defined) | |
6136 | return; | |
cbd0eecf | 6137 | |
7dba9362 AM |
6138 | if (h->root.string[0] == '.') |
6139 | { | |
6140 | /* .startof. or .sizeof. symbol. | |
6141 | .startof. already has final value. */ | |
6142 | if (h->root.string[2] == 'i') | |
252b5132 | 6143 | { |
7dba9362 AM |
6144 | /* .sizeof. */ |
6145 | h->u.def.value = TO_ADDR (h->u.def.section->size); | |
6146 | h->u.def.section = bfd_abs_section_ptr; | |
252b5132 | 6147 | } |
7dba9362 AM |
6148 | } |
6149 | else | |
6150 | { | |
6151 | /* __start or __stop symbol. */ | |
6152 | int has_lead = bfd_get_symbol_leading_char (link_info.output_bfd) != 0; | |
252b5132 | 6153 | |
7dba9362 AM |
6154 | h->u.def.section = h->u.def.section->output_section; |
6155 | if (h->root.string[4 + has_lead] == 'o') | |
252b5132 | 6156 | { |
7dba9362 AM |
6157 | /* __stop_ */ |
6158 | h->u.def.value = TO_ADDR (h->u.def.section->size); | |
252b5132 | 6159 | } |
252b5132 RH |
6160 | } |
6161 | } | |
6162 | ||
7dba9362 AM |
6163 | static void |
6164 | lang_finalize_start_stop (void) | |
6165 | { | |
6166 | foreach_start_stop (set_start_stop); | |
6167 | } | |
6168 | ||
252b5132 | 6169 | static void |
750877ba | 6170 | lang_end (void) |
252b5132 RH |
6171 | { |
6172 | struct bfd_link_hash_entry *h; | |
b34976b6 | 6173 | bfd_boolean warn; |
252b5132 | 6174 | |
0e1862bb L |
6175 | if ((bfd_link_relocatable (&link_info) && !link_info.gc_sections) |
6176 | || bfd_link_dll (&link_info)) | |
71934f94 | 6177 | warn = entry_from_cmdline; |
252b5132 | 6178 | else |
b34976b6 | 6179 | warn = TRUE; |
252b5132 | 6180 | |
ac69cbc6 TG |
6181 | /* Force the user to specify a root when generating a relocatable with |
6182 | --gc-sections. */ | |
0e1862bb | 6183 | if (link_info.gc_sections && bfd_link_relocatable (&link_info) |
24898b70 | 6184 | && !(entry_from_cmdline || undef_from_cmdline)) |
df5f2391 | 6185 | einfo (_("%F%P: gc-sections requires either an entry or " |
ac69cbc6 TG |
6186 | "an undefined symbol\n")); |
6187 | ||
1579bae1 | 6188 | if (entry_symbol.name == NULL) |
252b5132 | 6189 | { |
a359509e ZW |
6190 | /* No entry has been specified. Look for the default entry, but |
6191 | don't warn if we don't find it. */ | |
6192 | entry_symbol.name = entry_symbol_default; | |
b34976b6 | 6193 | warn = FALSE; |
252b5132 RH |
6194 | } |
6195 | ||
e3e942e9 | 6196 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name, |
b34976b6 | 6197 | FALSE, FALSE, TRUE); |
1579bae1 | 6198 | if (h != NULL |
252b5132 RH |
6199 | && (h->type == bfd_link_hash_defined |
6200 | || h->type == bfd_link_hash_defweak) | |
6201 | && h->u.def.section->output_section != NULL) | |
6202 | { | |
6203 | bfd_vma val; | |
6204 | ||
6205 | val = (h->u.def.value | |
f13a99db | 6206 | + bfd_get_section_vma (link_info.output_bfd, |
252b5132 RH |
6207 | h->u.def.section->output_section) |
6208 | + h->u.def.section->output_offset); | |
0aa7f586 | 6209 | if (!bfd_set_start_address (link_info.output_bfd, val)) |
df5f2391 | 6210 | einfo (_("%F%P: %s: can't set start address\n"), entry_symbol.name); |
252b5132 RH |
6211 | } |
6212 | else | |
6213 | { | |
6214 | bfd_vma val; | |
5f992e62 | 6215 | const char *send; |
252b5132 RH |
6216 | |
6217 | /* We couldn't find the entry symbol. Try parsing it as a | |
afd7a018 | 6218 | number. */ |
e3e942e9 | 6219 | val = bfd_scan_vma (entry_symbol.name, &send, 0); |
252b5132 RH |
6220 | if (*send == '\0') |
6221 | { | |
0aa7f586 | 6222 | if (!bfd_set_start_address (link_info.output_bfd, val)) |
df5f2391 | 6223 | einfo (_("%F%P: can't set start address\n")); |
252b5132 RH |
6224 | } |
6225 | else | |
6226 | { | |
6227 | asection *ts; | |
6228 | ||
6229 | /* Can't find the entry symbol, and it's not a number. Use | |
6230 | the first address in the text section. */ | |
f13a99db | 6231 | ts = bfd_get_section_by_name (link_info.output_bfd, entry_section); |
1579bae1 | 6232 | if (ts != NULL) |
252b5132 RH |
6233 | { |
6234 | if (warn) | |
6feb9908 AM |
6235 | einfo (_("%P: warning: cannot find entry symbol %s;" |
6236 | " defaulting to %V\n"), | |
e3e942e9 | 6237 | entry_symbol.name, |
f13a99db AM |
6238 | bfd_get_section_vma (link_info.output_bfd, ts)); |
6239 | if (!(bfd_set_start_address | |
6240 | (link_info.output_bfd, | |
6241 | bfd_get_section_vma (link_info.output_bfd, ts)))) | |
df5f2391 | 6242 | einfo (_("%F%P: can't set start address\n")); |
252b5132 RH |
6243 | } |
6244 | else | |
6245 | { | |
6246 | if (warn) | |
6feb9908 AM |
6247 | einfo (_("%P: warning: cannot find entry symbol %s;" |
6248 | " not setting start address\n"), | |
e3e942e9 | 6249 | entry_symbol.name); |
252b5132 RH |
6250 | } |
6251 | } | |
6252 | } | |
6253 | } | |
6254 | ||
6255 | /* This is a small function used when we want to ignore errors from | |
6256 | BFD. */ | |
6257 | ||
6258 | static void | |
52d45da3 AM |
6259 | ignore_bfd_errors (const char *fmt ATTRIBUTE_UNUSED, |
6260 | va_list ap ATTRIBUTE_UNUSED) | |
252b5132 RH |
6261 | { |
6262 | /* Don't do anything. */ | |
6263 | } | |
6264 | ||
6265 | /* Check that the architecture of all the input files is compatible | |
6266 | with the output file. Also call the backend to let it do any | |
6267 | other checking that is needed. */ | |
6268 | ||
6269 | static void | |
1579bae1 | 6270 | lang_check (void) |
252b5132 RH |
6271 | { |
6272 | lang_statement_union_type *file; | |
6273 | bfd *input_bfd; | |
5f992e62 | 6274 | const bfd_arch_info_type *compatible; |
252b5132 | 6275 | |
1579bae1 | 6276 | for (file = file_chain.head; file != NULL; file = file->input_statement.next) |
252b5132 | 6277 | { |
422b6f14 DK |
6278 | #ifdef ENABLE_PLUGINS |
6279 | /* Don't check format of files claimed by plugin. */ | |
66be1055 | 6280 | if (file->input_statement.flags.claimed) |
422b6f14 DK |
6281 | continue; |
6282 | #endif /* ENABLE_PLUGINS */ | |
252b5132 | 6283 | input_bfd = file->input_statement.the_bfd; |
6feb9908 | 6284 | compatible |
f13a99db | 6285 | = bfd_arch_get_compatible (input_bfd, link_info.output_bfd, |
6feb9908 | 6286 | command_line.accept_unknown_input_arch); |
30cba025 AM |
6287 | |
6288 | /* In general it is not possible to perform a relocatable | |
6289 | link between differing object formats when the input | |
6290 | file has relocations, because the relocations in the | |
6291 | input format may not have equivalent representations in | |
6292 | the output format (and besides BFD does not translate | |
6293 | relocs for other link purposes than a final link). */ | |
0e1862bb L |
6294 | if ((bfd_link_relocatable (&link_info) |
6295 | || link_info.emitrelocations) | |
30cba025 | 6296 | && (compatible == NULL |
f13a99db AM |
6297 | || (bfd_get_flavour (input_bfd) |
6298 | != bfd_get_flavour (link_info.output_bfd))) | |
30cba025 AM |
6299 | && (bfd_get_file_flags (input_bfd) & HAS_RELOC) != 0) |
6300 | { | |
df5f2391 | 6301 | einfo (_("%F%P: relocatable linking with relocations from" |
871b3ab2 | 6302 | " format %s (%pB) to format %s (%pB) is not supported\n"), |
30cba025 | 6303 | bfd_get_target (input_bfd), input_bfd, |
f13a99db | 6304 | bfd_get_target (link_info.output_bfd), link_info.output_bfd); |
30cba025 AM |
6305 | /* einfo with %F exits. */ |
6306 | } | |
6307 | ||
252b5132 RH |
6308 | if (compatible == NULL) |
6309 | { | |
6310 | if (command_line.warn_mismatch) | |
df5f2391 | 6311 | einfo (_("%X%P: %s architecture of input file `%pB'" |
6feb9908 | 6312 | " is incompatible with %s output\n"), |
252b5132 | 6313 | bfd_printable_name (input_bfd), input_bfd, |
f13a99db | 6314 | bfd_printable_name (link_info.output_bfd)); |
252b5132 | 6315 | } |
b9247304 | 6316 | else if (bfd_count_sections (input_bfd)) |
252b5132 | 6317 | { |
b9247304 | 6318 | /* If the input bfd has no contents, it shouldn't set the |
b7a26f91 | 6319 | private data of the output bfd. */ |
b9247304 | 6320 | |
252b5132 RH |
6321 | bfd_error_handler_type pfn = NULL; |
6322 | ||
6323 | /* If we aren't supposed to warn about mismatched input | |
afd7a018 AM |
6324 | files, temporarily set the BFD error handler to a |
6325 | function which will do nothing. We still want to call | |
6326 | bfd_merge_private_bfd_data, since it may set up | |
6327 | information which is needed in the output file. */ | |
0aa7f586 | 6328 | if (!command_line.warn_mismatch) |
252b5132 | 6329 | pfn = bfd_set_error_handler (ignore_bfd_errors); |
50e03d47 | 6330 | if (!bfd_merge_private_bfd_data (input_bfd, &link_info)) |
252b5132 RH |
6331 | { |
6332 | if (command_line.warn_mismatch) | |
df5f2391 | 6333 | einfo (_("%X%P: failed to merge target specific data" |
871b3ab2 | 6334 | " of file %pB\n"), input_bfd); |
252b5132 | 6335 | } |
0aa7f586 | 6336 | if (!command_line.warn_mismatch) |
252b5132 RH |
6337 | bfd_set_error_handler (pfn); |
6338 | } | |
6339 | } | |
6340 | } | |
6341 | ||
6342 | /* Look through all the global common symbols and attach them to the | |
6343 | correct section. The -sort-common command line switch may be used | |
de7dd2bd | 6344 | to roughly sort the entries by alignment. */ |
252b5132 RH |
6345 | |
6346 | static void | |
1579bae1 | 6347 | lang_common (void) |
252b5132 | 6348 | { |
a4819f54 | 6349 | if (link_info.inhibit_common_definition) |
4818e05f | 6350 | return; |
0e1862bb | 6351 | if (bfd_link_relocatable (&link_info) |
0aa7f586 | 6352 | && !command_line.force_common_definition) |
252b5132 RH |
6353 | return; |
6354 | ||
0aa7f586 | 6355 | if (!config.sort_common) |
1579bae1 | 6356 | bfd_link_hash_traverse (link_info.hash, lang_one_common, NULL); |
252b5132 RH |
6357 | else |
6358 | { | |
de7dd2bd NC |
6359 | unsigned int power; |
6360 | ||
6361 | if (config.sort_common == sort_descending) | |
967928e9 AM |
6362 | { |
6363 | for (power = 4; power > 0; power--) | |
6364 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
6365 | ||
6366 | power = 0; | |
6367 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
6368 | } | |
de7dd2bd | 6369 | else |
967928e9 AM |
6370 | { |
6371 | for (power = 0; power <= 4; power++) | |
6372 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
252b5132 | 6373 | |
2dc0e7b4 | 6374 | power = (unsigned int) -1; |
de7dd2bd NC |
6375 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); |
6376 | } | |
252b5132 RH |
6377 | } |
6378 | } | |
6379 | ||
6380 | /* Place one common symbol in the correct section. */ | |
6381 | ||
b34976b6 | 6382 | static bfd_boolean |
1579bae1 | 6383 | lang_one_common (struct bfd_link_hash_entry *h, void *info) |
252b5132 RH |
6384 | { |
6385 | unsigned int power_of_two; | |
6386 | bfd_vma size; | |
6387 | asection *section; | |
6388 | ||
6389 | if (h->type != bfd_link_hash_common) | |
b34976b6 | 6390 | return TRUE; |
252b5132 RH |
6391 | |
6392 | size = h->u.c.size; | |
6393 | power_of_two = h->u.c.p->alignment_power; | |
6394 | ||
de7dd2bd NC |
6395 | if (config.sort_common == sort_descending |
6396 | && power_of_two < *(unsigned int *) info) | |
6397 | return TRUE; | |
6398 | else if (config.sort_common == sort_ascending | |
967928e9 | 6399 | && power_of_two > *(unsigned int *) info) |
b34976b6 | 6400 | return TRUE; |
252b5132 RH |
6401 | |
6402 | section = h->u.c.p->section; | |
3023e3f6 | 6403 | if (!bfd_define_common_symbol (link_info.output_bfd, &link_info, h)) |
df5f2391 | 6404 | einfo (_("%F%P: could not define common symbol `%pT': %E\n"), |
3023e3f6 | 6405 | h->root.string); |
252b5132 RH |
6406 | |
6407 | if (config.map_file != NULL) | |
6408 | { | |
b34976b6 | 6409 | static bfd_boolean header_printed; |
252b5132 RH |
6410 | int len; |
6411 | char *name; | |
6412 | char buf[50]; | |
6413 | ||
0aa7f586 | 6414 | if (!header_printed) |
252b5132 RH |
6415 | { |
6416 | minfo (_("\nAllocating common symbols\n")); | |
6417 | minfo (_("Common symbol size file\n\n")); | |
b34976b6 | 6418 | header_printed = TRUE; |
252b5132 RH |
6419 | } |
6420 | ||
f13a99db | 6421 | name = bfd_demangle (link_info.output_bfd, h->root.string, |
73705ac3 | 6422 | DMGL_ANSI | DMGL_PARAMS); |
d7d4c8de AM |
6423 | if (name == NULL) |
6424 | { | |
6425 | minfo ("%s", h->root.string); | |
6426 | len = strlen (h->root.string); | |
6427 | } | |
6428 | else | |
6429 | { | |
6430 | minfo ("%s", name); | |
6431 | len = strlen (name); | |
6432 | free (name); | |
6433 | } | |
252b5132 RH |
6434 | |
6435 | if (len >= 19) | |
6436 | { | |
6437 | print_nl (); | |
6438 | len = 0; | |
6439 | } | |
6440 | while (len < 20) | |
6441 | { | |
6442 | print_space (); | |
6443 | ++len; | |
6444 | } | |
6445 | ||
6446 | minfo ("0x"); | |
6447 | if (size <= 0xffffffff) | |
6448 | sprintf (buf, "%lx", (unsigned long) size); | |
6449 | else | |
6450 | sprintf_vma (buf, size); | |
6451 | minfo ("%s", buf); | |
6452 | len = strlen (buf); | |
6453 | ||
6454 | while (len < 16) | |
6455 | { | |
6456 | print_space (); | |
6457 | ++len; | |
6458 | } | |
6459 | ||
871b3ab2 | 6460 | minfo ("%pB\n", section->owner); |
252b5132 RH |
6461 | } |
6462 | ||
b34976b6 | 6463 | return TRUE; |
252b5132 RH |
6464 | } |
6465 | ||
c005eb9e AB |
6466 | /* Handle a single orphan section S, placing the orphan into an appropriate |
6467 | output section. The effects of the --orphan-handling command line | |
6468 | option are handled here. */ | |
6469 | ||
6470 | static void | |
6471 | ldlang_place_orphan (asection *s) | |
6472 | { | |
6473 | if (config.orphan_handling == orphan_handling_discard) | |
6474 | { | |
6475 | lang_output_section_statement_type *os; | |
6476 | os = lang_output_section_statement_lookup (DISCARD_SECTION_NAME, 0, | |
6477 | TRUE); | |
6478 | if (os->addr_tree == NULL | |
6479 | && (bfd_link_relocatable (&link_info) | |
6480 | || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)) | |
6481 | os->addr_tree = exp_intop (0); | |
6482 | lang_add_section (&os->children, s, NULL, os); | |
6483 | } | |
6484 | else | |
6485 | { | |
6486 | lang_output_section_statement_type *os; | |
6487 | const char *name = s->name; | |
6488 | int constraint = 0; | |
6489 | ||
6490 | if (config.orphan_handling == orphan_handling_error) | |
df5f2391 | 6491 | einfo (_("%X%P: error: unplaced orphan section `%pA' from `%pB'\n"), |
c005eb9e AB |
6492 | s, s->owner); |
6493 | ||
6494 | if (config.unique_orphan_sections || unique_section_p (s, NULL)) | |
6495 | constraint = SPECIAL; | |
6496 | ||
6497 | os = ldemul_place_orphan (s, name, constraint); | |
6498 | if (os == NULL) | |
6499 | { | |
6500 | os = lang_output_section_statement_lookup (name, constraint, TRUE); | |
6501 | if (os->addr_tree == NULL | |
6502 | && (bfd_link_relocatable (&link_info) | |
6503 | || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)) | |
6504 | os->addr_tree = exp_intop (0); | |
6505 | lang_add_section (&os->children, s, NULL, os); | |
6506 | } | |
6507 | ||
6508 | if (config.orphan_handling == orphan_handling_warn) | |
871b3ab2 | 6509 | einfo (_("%P: warning: orphan section `%pA' from `%pB' being " |
df5f2391 | 6510 | "placed in section `%s'\n"), |
c005eb9e AB |
6511 | s, s->owner, os->name); |
6512 | } | |
6513 | } | |
6514 | ||
08da4cac KH |
6515 | /* Run through the input files and ensure that every input section has |
6516 | somewhere to go. If one is found without a destination then create | |
6517 | an input request and place it into the statement tree. */ | |
252b5132 RH |
6518 | |
6519 | static void | |
1579bae1 | 6520 | lang_place_orphans (void) |
252b5132 | 6521 | { |
e50d8076 | 6522 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
252b5132 RH |
6523 | { |
6524 | asection *s; | |
6525 | ||
1579bae1 | 6526 | for (s = file->the_bfd->sections; s != NULL; s = s->next) |
252b5132 | 6527 | { |
1579bae1 | 6528 | if (s->output_section == NULL) |
252b5132 | 6529 | { |
396a2467 | 6530 | /* This section of the file is not attached, root |
afd7a018 | 6531 | around for a sensible place for it to go. */ |
252b5132 | 6532 | |
66be1055 | 6533 | if (file->flags.just_syms) |
1449d79b | 6534 | bfd_link_just_syms (file->the_bfd, s, &link_info); |
5b5f4e6f | 6535 | else if (lang_discard_section_p (s)) |
164e712d | 6536 | s->output_section = bfd_abs_section_ptr; |
252b5132 RH |
6537 | else if (strcmp (s->name, "COMMON") == 0) |
6538 | { | |
6539 | /* This is a lonely common section which must have | |
6540 | come from an archive. We attach to the section | |
6541 | with the wildcard. */ | |
0e1862bb | 6542 | if (!bfd_link_relocatable (&link_info) |
252b5132 RH |
6543 | || command_line.force_common_definition) |
6544 | { | |
6545 | if (default_common_section == NULL) | |
66c103b7 AM |
6546 | default_common_section |
6547 | = lang_output_section_statement_lookup (".bss", 0, | |
6548 | TRUE); | |
39dcfe18 | 6549 | lang_add_section (&default_common_section->children, s, |
b9c361e0 | 6550 | NULL, default_common_section); |
252b5132 RH |
6551 | } |
6552 | } | |
252b5132 | 6553 | else |
c005eb9e | 6554 | ldlang_place_orphan (s); |
252b5132 RH |
6555 | } |
6556 | } | |
6557 | } | |
6558 | } | |
6559 | ||
252b5132 | 6560 | void |
1579bae1 | 6561 | lang_set_flags (lang_memory_region_type *ptr, const char *flags, int invert) |
252b5132 | 6562 | { |
aa8804e4 | 6563 | flagword *ptr_flags; |
252b5132 | 6564 | |
aa8804e4 | 6565 | ptr_flags = invert ? &ptr->not_flags : &ptr->flags; |
f0673d20 | 6566 | |
252b5132 RH |
6567 | while (*flags) |
6568 | { | |
6569 | switch (*flags) | |
6570 | { | |
f0673d20 NC |
6571 | /* PR 17900: An exclamation mark in the attributes reverses |
6572 | the sense of any of the attributes that follow. */ | |
6573 | case '!': | |
0aa7f586 | 6574 | invert = !invert; |
f0673d20 NC |
6575 | ptr_flags = invert ? &ptr->not_flags : &ptr->flags; |
6576 | break; | |
6577 | ||
252b5132 RH |
6578 | case 'A': case 'a': |
6579 | *ptr_flags |= SEC_ALLOC; | |
6580 | break; | |
6581 | ||
6582 | case 'R': case 'r': | |
6583 | *ptr_flags |= SEC_READONLY; | |
6584 | break; | |
6585 | ||
6586 | case 'W': case 'w': | |
6587 | *ptr_flags |= SEC_DATA; | |
6588 | break; | |
6589 | ||
6590 | case 'X': case 'x': | |
6591 | *ptr_flags |= SEC_CODE; | |
6592 | break; | |
6593 | ||
6594 | case 'L': case 'l': | |
6595 | case 'I': case 'i': | |
6596 | *ptr_flags |= SEC_LOAD; | |
6597 | break; | |
6598 | ||
6599 | default: | |
df5f2391 | 6600 | einfo (_("%F%P: invalid character %c (%d) in flags\n"), |
0aa7f586 | 6601 | *flags, *flags); |
252b5132 RH |
6602 | break; |
6603 | } | |
6604 | flags++; | |
6605 | } | |
6606 | } | |
6607 | ||
6608 | /* Call a function on each input file. This function will be called | |
6609 | on an archive, but not on the elements. */ | |
6610 | ||
6611 | void | |
1579bae1 | 6612 | lang_for_each_input_file (void (*func) (lang_input_statement_type *)) |
252b5132 RH |
6613 | { |
6614 | lang_input_statement_type *f; | |
6615 | ||
1fa4ec6a | 6616 | for (f = &input_file_chain.head->input_statement; |
252b5132 | 6617 | f != NULL; |
1fa4ec6a | 6618 | f = &f->next_real_file->input_statement) |
252b5132 RH |
6619 | func (f); |
6620 | } | |
6621 | ||
6622 | /* Call a function on each file. The function will be called on all | |
6623 | the elements of an archive which are included in the link, but will | |
6624 | not be called on the archive file itself. */ | |
6625 | ||
6626 | void | |
1579bae1 | 6627 | lang_for_each_file (void (*func) (lang_input_statement_type *)) |
252b5132 | 6628 | { |
e50d8076 | 6629 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 RH |
6630 | { |
6631 | func (f); | |
6632 | } | |
6633 | } | |
6634 | ||
252b5132 | 6635 | void |
1579bae1 | 6636 | ldlang_add_file (lang_input_statement_type *entry) |
252b5132 | 6637 | { |
252b5132 RH |
6638 | lang_statement_append (&file_chain, |
6639 | (lang_statement_union_type *) entry, | |
6640 | &entry->next); | |
6641 | ||
6642 | /* The BFD linker needs to have a list of all input BFDs involved in | |
6643 | a link. */ | |
c72f2fb2 | 6644 | ASSERT (entry->the_bfd->link.next == NULL); |
f13a99db | 6645 | ASSERT (entry->the_bfd != link_info.output_bfd); |
a9a4c53e AM |
6646 | |
6647 | *link_info.input_bfds_tail = entry->the_bfd; | |
c72f2fb2 | 6648 | link_info.input_bfds_tail = &entry->the_bfd->link.next; |
1579bae1 | 6649 | entry->the_bfd->usrdata = entry; |
252b5132 RH |
6650 | bfd_set_gp_size (entry->the_bfd, g_switch_value); |
6651 | ||
6652 | /* Look through the sections and check for any which should not be | |
6653 | included in the link. We need to do this now, so that we can | |
6654 | notice when the backend linker tries to report multiple | |
6655 | definition errors for symbols which are in sections we aren't | |
6656 | going to link. FIXME: It might be better to entirely ignore | |
6657 | symbols which are defined in sections which are going to be | |
6658 | discarded. This would require modifying the backend linker for | |
6659 | each backend which might set the SEC_LINK_ONCE flag. If we do | |
6660 | this, we should probably handle SEC_EXCLUDE in the same way. */ | |
6661 | ||
1579bae1 | 6662 | bfd_map_over_sections (entry->the_bfd, section_already_linked, entry); |
252b5132 RH |
6663 | } |
6664 | ||
6665 | void | |
1579bae1 | 6666 | lang_add_output (const char *name, int from_script) |
252b5132 RH |
6667 | { |
6668 | /* Make -o on command line override OUTPUT in script. */ | |
7c519c12 | 6669 | if (!had_output_filename || !from_script) |
252b5132 RH |
6670 | { |
6671 | output_filename = name; | |
b34976b6 | 6672 | had_output_filename = TRUE; |
252b5132 RH |
6673 | } |
6674 | } | |
6675 | ||
252b5132 | 6676 | static int |
1579bae1 | 6677 | topower (int x) |
252b5132 RH |
6678 | { |
6679 | unsigned int i = 1; | |
6680 | int l; | |
6681 | ||
6682 | if (x < 0) | |
6683 | return -1; | |
6684 | ||
5f992e62 | 6685 | for (l = 0; l < 32; l++) |
252b5132 RH |
6686 | { |
6687 | if (i >= (unsigned int) x) | |
6688 | return l; | |
6689 | i <<= 1; | |
6690 | } | |
6691 | ||
6692 | return 0; | |
6693 | } | |
6694 | ||
aea4bd9d | 6695 | lang_output_section_statement_type * |
1579bae1 AM |
6696 | lang_enter_output_section_statement (const char *output_section_statement_name, |
6697 | etree_type *address_exp, | |
6698 | enum section_type sectype, | |
1579bae1 AM |
6699 | etree_type *align, |
6700 | etree_type *subalign, | |
0841712e | 6701 | etree_type *ebase, |
1eec346e NC |
6702 | int constraint, |
6703 | int align_with_input) | |
252b5132 RH |
6704 | { |
6705 | lang_output_section_statement_type *os; | |
6706 | ||
66c103b7 AM |
6707 | os = lang_output_section_statement_lookup (output_section_statement_name, |
6708 | constraint, TRUE); | |
967928e9 | 6709 | current_section = os; |
252b5132 | 6710 | |
1579bae1 | 6711 | if (os->addr_tree == NULL) |
08da4cac KH |
6712 | { |
6713 | os->addr_tree = address_exp; | |
6714 | } | |
252b5132 RH |
6715 | os->sectype = sectype; |
6716 | if (sectype != noload_section) | |
6717 | os->flags = SEC_NO_FLAGS; | |
6718 | else | |
6719 | os->flags = SEC_NEVER_LOAD; | |
e5caa5e0 | 6720 | os->block_value = 1; |
66c103b7 AM |
6721 | |
6722 | /* Make next things chain into subchain of this. */ | |
bde18da4 | 6723 | push_stat_ptr (&os->children); |
252b5132 | 6724 | |
1eec346e NC |
6725 | os->align_lma_with_input = align_with_input == ALIGN_WITH_INPUT; |
6726 | if (os->align_lma_with_input && align != NULL) | |
c1c8c1ef | 6727 | einfo (_("%F%P:%pS: error: align with input and explicit align specified\n"), |
0aa7f586 | 6728 | NULL); |
1eec346e | 6729 | |
08da4cac | 6730 | os->subsection_alignment = |
e9ee469a | 6731 | topower (exp_get_value_int (subalign, -1, "subsection alignment")); |
08da4cac | 6732 | os->section_alignment = |
e9ee469a | 6733 | topower (exp_get_value_int (align, -1, "section alignment")); |
252b5132 RH |
6734 | |
6735 | os->load_base = ebase; | |
aea4bd9d | 6736 | return os; |
252b5132 RH |
6737 | } |
6738 | ||
252b5132 | 6739 | void |
1579bae1 | 6740 | lang_final (void) |
252b5132 | 6741 | { |
d3ce72d0 NC |
6742 | lang_output_statement_type *new_stmt; |
6743 | ||
6744 | new_stmt = new_stat (lang_output_statement, stat_ptr); | |
6745 | new_stmt->name = output_filename; | |
252b5132 RH |
6746 | } |
6747 | ||
08da4cac KH |
6748 | /* Reset the current counters in the regions. */ |
6749 | ||
e3dc8847 | 6750 | void |
1579bae1 | 6751 | lang_reset_memory_regions (void) |
252b5132 RH |
6752 | { |
6753 | lang_memory_region_type *p = lang_memory_region_list; | |
b3327aad | 6754 | asection *o; |
e9ee469a | 6755 | lang_output_section_statement_type *os; |
252b5132 | 6756 | |
1579bae1 | 6757 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
252b5132 | 6758 | { |
252b5132 | 6759 | p->current = p->origin; |
66e28d60 | 6760 | p->last_os = NULL; |
252b5132 | 6761 | } |
b3327aad | 6762 | |
e9ee469a AM |
6763 | for (os = &lang_output_section_statement.head->output_section_statement; |
6764 | os != NULL; | |
6765 | os = os->next) | |
cde9e0be AM |
6766 | { |
6767 | os->processed_vma = FALSE; | |
6768 | os->processed_lma = FALSE; | |
6769 | } | |
e9ee469a | 6770 | |
f13a99db | 6771 | for (o = link_info.output_bfd->sections; o != NULL; o = o->next) |
1a23a9e6 AM |
6772 | { |
6773 | /* Save the last size for possible use by bfd_relax_section. */ | |
6774 | o->rawsize = o->size; | |
8772de11 MR |
6775 | if (!(o->flags & SEC_FIXED_SIZE)) |
6776 | o->size = 0; | |
1a23a9e6 | 6777 | } |
252b5132 RH |
6778 | } |
6779 | ||
164e712d | 6780 | /* Worker for lang_gc_sections_1. */ |
252b5132 RH |
6781 | |
6782 | static void | |
1579bae1 AM |
6783 | gc_section_callback (lang_wild_statement_type *ptr, |
6784 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
6785 | asection *section, | |
b9c361e0 | 6786 | struct flag_info *sflag_info ATTRIBUTE_UNUSED, |
1579bae1 AM |
6787 | lang_input_statement_type *file ATTRIBUTE_UNUSED, |
6788 | void *data ATTRIBUTE_UNUSED) | |
252b5132 | 6789 | { |
164e712d AM |
6790 | /* If the wild pattern was marked KEEP, the member sections |
6791 | should be as well. */ | |
4dec4d4e RH |
6792 | if (ptr->keep_sections) |
6793 | section->flags |= SEC_KEEP; | |
252b5132 RH |
6794 | } |
6795 | ||
252b5132 RH |
6796 | /* Iterate over sections marking them against GC. */ |
6797 | ||
6798 | static void | |
1579bae1 | 6799 | lang_gc_sections_1 (lang_statement_union_type *s) |
252b5132 | 6800 | { |
1579bae1 | 6801 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
6802 | { |
6803 | switch (s->header.type) | |
6804 | { | |
6805 | case lang_wild_statement_enum: | |
164e712d | 6806 | walk_wild (&s->wild_statement, gc_section_callback, NULL); |
abc6ab0a | 6807 | break; |
252b5132 RH |
6808 | case lang_constructors_statement_enum: |
6809 | lang_gc_sections_1 (constructor_list.head); | |
6810 | break; | |
6811 | case lang_output_section_statement_enum: | |
6812 | lang_gc_sections_1 (s->output_section_statement.children.head); | |
6813 | break; | |
6814 | case lang_group_statement_enum: | |
6815 | lang_gc_sections_1 (s->group_statement.children.head); | |
6816 | break; | |
6817 | default: | |
6818 | break; | |
6819 | } | |
6820 | } | |
6821 | } | |
6822 | ||
6823 | static void | |
1579bae1 | 6824 | lang_gc_sections (void) |
252b5132 | 6825 | { |
252b5132 | 6826 | /* Keep all sections so marked in the link script. */ |
252b5132 RH |
6827 | lang_gc_sections_1 (statement_list.head); |
6828 | ||
9ca57817 AM |
6829 | /* SEC_EXCLUDE is ignored when doing a relocatable link, except in |
6830 | the special case of debug info. (See bfd/stabs.c) | |
6831 | Twiddle the flag here, to simplify later linker code. */ | |
0e1862bb | 6832 | if (bfd_link_relocatable (&link_info)) |
9ca57817 AM |
6833 | { |
6834 | LANG_FOR_EACH_INPUT_STATEMENT (f) | |
6835 | { | |
6836 | asection *sec; | |
9e2278f5 | 6837 | #ifdef ENABLE_PLUGINS |
66be1055 | 6838 | if (f->flags.claimed) |
9e2278f5 AM |
6839 | continue; |
6840 | #endif | |
9ca57817 AM |
6841 | for (sec = f->the_bfd->sections; sec != NULL; sec = sec->next) |
6842 | if ((sec->flags & SEC_DEBUGGING) == 0) | |
6843 | sec->flags &= ~SEC_EXCLUDE; | |
6844 | } | |
6845 | } | |
6846 | ||
57316bff | 6847 | if (link_info.gc_sections) |
f13a99db | 6848 | bfd_gc_sections (link_info.output_bfd, &link_info); |
252b5132 RH |
6849 | } |
6850 | ||
b10a8ae0 L |
6851 | /* Worker for lang_find_relro_sections_1. */ |
6852 | ||
6853 | static void | |
6854 | find_relro_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED, | |
6855 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
6856 | asection *section, | |
b9c361e0 | 6857 | struct flag_info *sflag_info ATTRIBUTE_UNUSED, |
b10a8ae0 L |
6858 | lang_input_statement_type *file ATTRIBUTE_UNUSED, |
6859 | void *data) | |
6860 | { | |
6861 | /* Discarded, excluded and ignored sections effectively have zero | |
6862 | size. */ | |
6863 | if (section->output_section != NULL | |
f13a99db | 6864 | && section->output_section->owner == link_info.output_bfd |
b10a8ae0 L |
6865 | && (section->output_section->flags & SEC_EXCLUDE) == 0 |
6866 | && !IGNORE_SECTION (section) | |
6867 | && section->size != 0) | |
6868 | { | |
6869 | bfd_boolean *has_relro_section = (bfd_boolean *) data; | |
6870 | *has_relro_section = TRUE; | |
6871 | } | |
6872 | } | |
6873 | ||
6874 | /* Iterate over sections for relro sections. */ | |
6875 | ||
6876 | static void | |
6877 | lang_find_relro_sections_1 (lang_statement_union_type *s, | |
ed1794ee | 6878 | seg_align_type *seg, |
b10a8ae0 L |
6879 | bfd_boolean *has_relro_section) |
6880 | { | |
6881 | if (*has_relro_section) | |
6882 | return; | |
6883 | ||
6884 | for (; s != NULL; s = s->header.next) | |
6885 | { | |
ed1794ee | 6886 | if (s == seg->relro_end_stat) |
b10a8ae0 L |
6887 | break; |
6888 | ||
6889 | switch (s->header.type) | |
6890 | { | |
6891 | case lang_wild_statement_enum: | |
6892 | walk_wild (&s->wild_statement, | |
6893 | find_relro_section_callback, | |
6894 | has_relro_section); | |
6895 | break; | |
6896 | case lang_constructors_statement_enum: | |
6897 | lang_find_relro_sections_1 (constructor_list.head, | |
ed1794ee | 6898 | seg, has_relro_section); |
b10a8ae0 L |
6899 | break; |
6900 | case lang_output_section_statement_enum: | |
6901 | lang_find_relro_sections_1 (s->output_section_statement.children.head, | |
ed1794ee | 6902 | seg, has_relro_section); |
b10a8ae0 L |
6903 | break; |
6904 | case lang_group_statement_enum: | |
6905 | lang_find_relro_sections_1 (s->group_statement.children.head, | |
ed1794ee | 6906 | seg, has_relro_section); |
b10a8ae0 L |
6907 | break; |
6908 | default: | |
6909 | break; | |
6910 | } | |
6911 | } | |
6912 | } | |
6913 | ||
6914 | static void | |
6915 | lang_find_relro_sections (void) | |
6916 | { | |
6917 | bfd_boolean has_relro_section = FALSE; | |
6918 | ||
6919 | /* Check all sections in the link script. */ | |
6920 | ||
6921 | lang_find_relro_sections_1 (expld.dataseg.relro_start_stat, | |
ed1794ee | 6922 | &expld.dataseg, &has_relro_section); |
b10a8ae0 L |
6923 | |
6924 | if (!has_relro_section) | |
6925 | link_info.relro = FALSE; | |
6926 | } | |
6927 | ||
fbbc3759 L |
6928 | /* Relax all sections until bfd_relax_section gives up. */ |
6929 | ||
eaeb0a9d AM |
6930 | void |
6931 | lang_relax_sections (bfd_boolean need_layout) | |
fbbc3759 | 6932 | { |
28d5f677 | 6933 | if (RELAXATION_ENABLED) |
fbbc3759 | 6934 | { |
eaeb0a9d AM |
6935 | /* We may need more than one relaxation pass. */ |
6936 | int i = link_info.relax_pass; | |
fbbc3759 | 6937 | |
eaeb0a9d AM |
6938 | /* The backend can use it to determine the current pass. */ |
6939 | link_info.relax_pass = 0; | |
fbbc3759 | 6940 | |
eaeb0a9d AM |
6941 | while (i--) |
6942 | { | |
6943 | /* Keep relaxing until bfd_relax_section gives up. */ | |
6944 | bfd_boolean relax_again; | |
fbbc3759 | 6945 | |
eaeb0a9d AM |
6946 | link_info.relax_trip = -1; |
6947 | do | |
6948 | { | |
6949 | link_info.relax_trip++; | |
6950 | ||
6951 | /* Note: pe-dll.c does something like this also. If you find | |
6952 | you need to change this code, you probably need to change | |
6953 | pe-dll.c also. DJ */ | |
6954 | ||
6955 | /* Do all the assignments with our current guesses as to | |
6956 | section sizes. */ | |
2f65ac72 | 6957 | lang_do_assignments (lang_assigning_phase_enum); |
eaeb0a9d AM |
6958 | |
6959 | /* We must do this after lang_do_assignments, because it uses | |
6960 | size. */ | |
6961 | lang_reset_memory_regions (); | |
6962 | ||
6963 | /* Perform another relax pass - this time we know where the | |
6964 | globals are, so can make a better guess. */ | |
6965 | relax_again = FALSE; | |
6966 | lang_size_sections (&relax_again, FALSE); | |
6967 | } | |
6968 | while (relax_again); | |
6969 | ||
6970 | link_info.relax_pass++; | |
6971 | } | |
6972 | need_layout = TRUE; | |
6973 | } | |
fbbc3759 | 6974 | |
eaeb0a9d AM |
6975 | if (need_layout) |
6976 | { | |
6977 | /* Final extra sizing to report errors. */ | |
2f65ac72 | 6978 | lang_do_assignments (lang_assigning_phase_enum); |
eaeb0a9d AM |
6979 | lang_reset_memory_regions (); |
6980 | lang_size_sections (NULL, TRUE); | |
fbbc3759 | 6981 | } |
fbbc3759 L |
6982 | } |
6983 | ||
8543fde5 DK |
6984 | #ifdef ENABLE_PLUGINS |
6985 | /* Find the insert point for the plugin's replacement files. We | |
6986 | place them after the first claimed real object file, or if the | |
6987 | first claimed object is an archive member, after the last real | |
6988 | object file immediately preceding the archive. In the event | |
6989 | no objects have been claimed at all, we return the first dummy | |
6990 | object file on the list as the insert point; that works, but | |
6991 | the callee must be careful when relinking the file_chain as it | |
6992 | is not actually on that chain, only the statement_list and the | |
6993 | input_file list; in that case, the replacement files must be | |
6994 | inserted at the head of the file_chain. */ | |
6995 | ||
6996 | static lang_input_statement_type * | |
6997 | find_replacements_insert_point (void) | |
6998 | { | |
6999 | lang_input_statement_type *claim1, *lastobject; | |
7000 | lastobject = &input_file_chain.head->input_statement; | |
7001 | for (claim1 = &file_chain.head->input_statement; | |
7002 | claim1 != NULL; | |
7003 | claim1 = &claim1->next->input_statement) | |
7004 | { | |
66be1055 AM |
7005 | if (claim1->flags.claimed) |
7006 | return claim1->flags.claim_archive ? lastobject : claim1; | |
8543fde5 | 7007 | /* Update lastobject if this is a real object file. */ |
0aa7f586 | 7008 | if (claim1->the_bfd != NULL && claim1->the_bfd->my_archive == NULL) |
8543fde5 DK |
7009 | lastobject = claim1; |
7010 | } | |
7011 | /* No files were claimed by the plugin. Choose the last object | |
7012 | file found on the list (maybe the first, dummy entry) as the | |
7013 | insert point. */ | |
7014 | return lastobject; | |
7015 | } | |
9e2278f5 | 7016 | |
1fa4ec6a AM |
7017 | /* Find where to insert ADD, an archive element or shared library |
7018 | added during a rescan. */ | |
7019 | ||
7020 | static lang_statement_union_type ** | |
7021 | find_rescan_insertion (lang_input_statement_type *add) | |
7022 | { | |
7023 | bfd *add_bfd = add->the_bfd; | |
7024 | lang_input_statement_type *f; | |
7025 | lang_input_statement_type *last_loaded = NULL; | |
7026 | lang_input_statement_type *before = NULL; | |
7027 | lang_statement_union_type **iter = NULL; | |
7028 | ||
7029 | if (add_bfd->my_archive != NULL) | |
7030 | add_bfd = add_bfd->my_archive; | |
7031 | ||
7032 | /* First look through the input file chain, to find an object file | |
7033 | before the one we've rescanned. Normal object files always | |
7034 | appear on both the input file chain and the file chain, so this | |
7035 | lets us get quickly to somewhere near the correct place on the | |
7036 | file chain if it is full of archive elements. Archives don't | |
7037 | appear on the file chain, but if an element has been extracted | |
7038 | then their input_statement->next points at it. */ | |
7039 | for (f = &input_file_chain.head->input_statement; | |
7040 | f != NULL; | |
7041 | f = &f->next_real_file->input_statement) | |
7042 | { | |
7043 | if (f->the_bfd == add_bfd) | |
7044 | { | |
7045 | before = last_loaded; | |
7046 | if (f->next != NULL) | |
7047 | return &f->next->input_statement.next; | |
7048 | } | |
7049 | if (f->the_bfd != NULL && f->next != NULL) | |
7050 | last_loaded = f; | |
7051 | } | |
7052 | ||
7053 | for (iter = before ? &before->next : &file_chain.head->input_statement.next; | |
7054 | *iter != NULL; | |
7055 | iter = &(*iter)->input_statement.next) | |
d580dcc7 AM |
7056 | if (!(*iter)->input_statement.flags.claim_archive |
7057 | && (*iter)->input_statement.the_bfd->my_archive == NULL) | |
1fa4ec6a AM |
7058 | break; |
7059 | ||
7060 | return iter; | |
7061 | } | |
7062 | ||
9e2278f5 AM |
7063 | /* Insert SRCLIST into DESTLIST after given element by chaining |
7064 | on FIELD as the next-pointer. (Counterintuitively does not need | |
7065 | a pointer to the actual after-node itself, just its chain field.) */ | |
7066 | ||
7067 | static void | |
7068 | lang_list_insert_after (lang_statement_list_type *destlist, | |
7069 | lang_statement_list_type *srclist, | |
7070 | lang_statement_union_type **field) | |
7071 | { | |
7072 | *(srclist->tail) = *field; | |
7073 | *field = srclist->head; | |
7074 | if (destlist->tail == field) | |
7075 | destlist->tail = srclist->tail; | |
7076 | } | |
7077 | ||
7078 | /* Detach new nodes added to DESTLIST since the time ORIGLIST | |
7079 | was taken as a copy of it and leave them in ORIGLIST. */ | |
7080 | ||
7081 | static void | |
7082 | lang_list_remove_tail (lang_statement_list_type *destlist, | |
7083 | lang_statement_list_type *origlist) | |
7084 | { | |
7085 | union lang_statement_union **savetail; | |
7086 | /* Check that ORIGLIST really is an earlier state of DESTLIST. */ | |
7087 | ASSERT (origlist->head == destlist->head); | |
7088 | savetail = origlist->tail; | |
7089 | origlist->head = *(savetail); | |
7090 | origlist->tail = destlist->tail; | |
7091 | destlist->tail = savetail; | |
7092 | *savetail = NULL; | |
7093 | } | |
8543fde5 DK |
7094 | #endif /* ENABLE_PLUGINS */ |
7095 | ||
4153b6db NC |
7096 | /* Add NAME to the list of garbage collection entry points. */ |
7097 | ||
7098 | void | |
0aa7f586 | 7099 | lang_add_gc_name (const char *name) |
4153b6db NC |
7100 | { |
7101 | struct bfd_sym_chain *sym; | |
7102 | ||
7103 | if (name == NULL) | |
7104 | return; | |
7105 | ||
7106 | sym = (struct bfd_sym_chain *) stat_alloc (sizeof (*sym)); | |
7107 | ||
7108 | sym->next = link_info.gc_sym_list; | |
7109 | sym->name = name; | |
7110 | link_info.gc_sym_list = sym; | |
7111 | } | |
7112 | ||
fbf05aa7 L |
7113 | /* Check relocations. */ |
7114 | ||
7115 | static void | |
7116 | lang_check_relocs (void) | |
7117 | { | |
4f3b23b3 | 7118 | if (link_info.check_relocs_after_open_input) |
fbf05aa7 L |
7119 | { |
7120 | bfd *abfd; | |
7121 | ||
7122 | for (abfd = link_info.input_bfds; | |
7123 | abfd != (bfd *) NULL; abfd = abfd->link.next) | |
4f3b23b3 | 7124 | if (!bfd_link_check_relocs (abfd, &link_info)) |
fbf05aa7 | 7125 | { |
4f3b23b3 | 7126 | /* No object output, fail return. */ |
fbf05aa7 | 7127 | config.make_executable = FALSE; |
4f3b23b3 NC |
7128 | /* Note: we do not abort the loop, but rather |
7129 | continue the scan in case there are other | |
7130 | bad relocations to report. */ | |
fbf05aa7 L |
7131 | } |
7132 | } | |
7133 | } | |
7134 | ||
77f5e65e AB |
7135 | /* Look through all output sections looking for places where we can |
7136 | propagate forward the lma region. */ | |
7137 | ||
7138 | static void | |
7139 | lang_propagate_lma_regions (void) | |
7140 | { | |
7141 | lang_output_section_statement_type *os; | |
7142 | ||
7143 | for (os = &lang_output_section_statement.head->output_section_statement; | |
7144 | os != NULL; | |
7145 | os = os->next) | |
7146 | { | |
7147 | if (os->prev != NULL | |
7148 | && os->lma_region == NULL | |
7149 | && os->load_base == NULL | |
7150 | && os->addr_tree == NULL | |
7151 | && os->region == os->prev->region) | |
7152 | os->lma_region = os->prev->lma_region; | |
7153 | } | |
7154 | } | |
7155 | ||
252b5132 | 7156 | void |
1579bae1 | 7157 | lang_process (void) |
252b5132 | 7158 | { |
55255dae | 7159 | /* Finalize dynamic list. */ |
40b36307 L |
7160 | if (link_info.dynamic_list) |
7161 | lang_finalize_version_expr_head (&link_info.dynamic_list->head); | |
55255dae | 7162 | |
252b5132 RH |
7163 | current_target = default_target; |
7164 | ||
08da4cac KH |
7165 | /* Open the output file. */ |
7166 | lang_for_each_statement (ldlang_open_output); | |
e5caa5e0 | 7167 | init_opb (); |
252b5132 RH |
7168 | |
7169 | ldemul_create_output_section_statements (); | |
7170 | ||
08da4cac | 7171 | /* Add to the hash table all undefineds on the command line. */ |
252b5132 RH |
7172 | lang_place_undefineds (); |
7173 | ||
082b7297 | 7174 | if (!bfd_section_already_linked_table_init ()) |
df5f2391 | 7175 | einfo (_("%F%P: can not create hash table: %E\n")); |
9503fd87 | 7176 | |
08da4cac | 7177 | /* Create a bfd for each input file. */ |
252b5132 | 7178 | current_target = default_target; |
165f707a | 7179 | lang_statement_iteration++; |
486329aa | 7180 | open_input_bfds (statement_list.head, OPEN_BFD_NORMAL); |
252b5132 | 7181 | |
5d3236ee | 7182 | #ifdef ENABLE_PLUGINS |
716db898 | 7183 | if (link_info.lto_plugin_active) |
f84854b6 | 7184 | { |
8543fde5 DK |
7185 | lang_statement_list_type added; |
7186 | lang_statement_list_type files, inputfiles; | |
9e2278f5 | 7187 | |
f84854b6 L |
7188 | /* Now all files are read, let the plugin(s) decide if there |
7189 | are any more to be added to the link before we call the | |
8543fde5 DK |
7190 | emulation's after_open hook. We create a private list of |
7191 | input statements for this purpose, which we will eventually | |
370dfff4 | 7192 | insert into the global statement list after the first claimed |
8543fde5 DK |
7193 | file. */ |
7194 | added = *stat_ptr; | |
7195 | /* We need to manipulate all three chains in synchrony. */ | |
7196 | files = file_chain; | |
7197 | inputfiles = input_file_chain; | |
f84854b6 | 7198 | if (plugin_call_all_symbols_read ()) |
df5f2391 | 7199 | einfo (_("%F%P: %s: plugin reported error after all symbols read\n"), |
f84854b6 | 7200 | plugin_error_plugin ()); |
8543fde5 | 7201 | /* Open any newly added files, updating the file chains. */ |
cdaa438c | 7202 | open_input_bfds (*added.tail, OPEN_BFD_NORMAL); |
8543fde5 DK |
7203 | /* Restore the global list pointer now they have all been added. */ |
7204 | lang_list_remove_tail (stat_ptr, &added); | |
7205 | /* And detach the fresh ends of the file lists. */ | |
7206 | lang_list_remove_tail (&file_chain, &files); | |
7207 | lang_list_remove_tail (&input_file_chain, &inputfiles); | |
7208 | /* Were any new files added? */ | |
7209 | if (added.head != NULL) | |
7210 | { | |
7211 | /* If so, we will insert them into the statement list immediately | |
7212 | after the first input file that was claimed by the plugin. */ | |
9e2278f5 | 7213 | plugin_insert = find_replacements_insert_point (); |
8543fde5 DK |
7214 | /* If a plugin adds input files without having claimed any, we |
7215 | don't really have a good idea where to place them. Just putting | |
7216 | them at the start or end of the list is liable to leave them | |
7217 | outside the crtbegin...crtend range. */ | |
9e2278f5 AM |
7218 | ASSERT (plugin_insert != NULL); |
7219 | /* Splice the new statement list into the old one. */ | |
7220 | lang_list_insert_after (stat_ptr, &added, | |
7221 | &plugin_insert->header.next); | |
8543fde5 DK |
7222 | /* Likewise for the file chains. */ |
7223 | lang_list_insert_after (&input_file_chain, &inputfiles, | |
9e2278f5 | 7224 | &plugin_insert->next_real_file); |
8543fde5 DK |
7225 | /* We must be careful when relinking file_chain; we may need to |
7226 | insert the new files at the head of the list if the insert | |
7227 | point chosen is the dummy first input file. */ | |
9e2278f5 AM |
7228 | if (plugin_insert->filename) |
7229 | lang_list_insert_after (&file_chain, &files, &plugin_insert->next); | |
8543fde5 DK |
7230 | else |
7231 | lang_list_insert_after (&file_chain, &files, &file_chain.head); | |
9e2278f5 AM |
7232 | |
7233 | /* Rescan archives in case new undefined symbols have appeared. */ | |
1fa4ec6a | 7234 | files = file_chain; |
165f707a | 7235 | lang_statement_iteration++; |
9e2278f5 | 7236 | open_input_bfds (statement_list.head, OPEN_BFD_RESCAN); |
1fa4ec6a AM |
7237 | lang_list_remove_tail (&file_chain, &files); |
7238 | while (files.head != NULL) | |
7239 | { | |
7240 | lang_statement_union_type **insert; | |
7241 | lang_statement_union_type **iter, *temp; | |
7242 | bfd *my_arch; | |
7243 | ||
7244 | insert = find_rescan_insertion (&files.head->input_statement); | |
7245 | /* All elements from an archive can be added at once. */ | |
7246 | iter = &files.head->input_statement.next; | |
7247 | my_arch = files.head->input_statement.the_bfd->my_archive; | |
7248 | if (my_arch != NULL) | |
7249 | for (; *iter != NULL; iter = &(*iter)->input_statement.next) | |
7250 | if ((*iter)->input_statement.the_bfd->my_archive != my_arch) | |
7251 | break; | |
7252 | temp = *insert; | |
7253 | *insert = files.head; | |
7254 | files.head = *iter; | |
7255 | *iter = temp; | |
7256 | if (my_arch != NULL) | |
7257 | { | |
7258 | lang_input_statement_type *parent = my_arch->usrdata; | |
7259 | if (parent != NULL) | |
7260 | parent->next = (lang_statement_union_type *) | |
7261 | ((char *) iter | |
7262 | - offsetof (lang_input_statement_type, next)); | |
7263 | } | |
7264 | } | |
8543fde5 | 7265 | } |
f84854b6 | 7266 | } |
5d3236ee DK |
7267 | #endif /* ENABLE_PLUGINS */ |
7268 | ||
0aa7f586 AM |
7269 | /* Make sure that nobody has tried to add a symbol to this list |
7270 | before now. */ | |
4153b6db NC |
7271 | ASSERT (link_info.gc_sym_list == NULL); |
7272 | ||
e3e942e9 | 7273 | link_info.gc_sym_list = &entry_symbol; |
41f46ed9 | 7274 | |
e3e942e9 | 7275 | if (entry_symbol.name == NULL) |
41f46ed9 SKS |
7276 | { |
7277 | link_info.gc_sym_list = ldlang_undef_chain_list_head; | |
7278 | ||
7279 | /* entry_symbol is normally initialied by a ENTRY definition in the | |
7280 | linker script or the -e command line option. But if neither of | |
7281 | these have been used, the target specific backend may still have | |
4153b6db | 7282 | provided an entry symbol via a call to lang_default_entry(). |
41f46ed9 SKS |
7283 | Unfortunately this value will not be processed until lang_end() |
7284 | is called, long after this function has finished. So detect this | |
7285 | case here and add the target's entry symbol to the list of starting | |
7286 | points for garbage collection resolution. */ | |
4153b6db | 7287 | lang_add_gc_name (entry_symbol_default); |
41f46ed9 SKS |
7288 | } |
7289 | ||
4153b6db NC |
7290 | lang_add_gc_name (link_info.init_function); |
7291 | lang_add_gc_name (link_info.fini_function); | |
e3e942e9 | 7292 | |
252b5132 | 7293 | ldemul_after_open (); |
16e4ecc0 AM |
7294 | if (config.map_file != NULL) |
7295 | lang_print_asneeded (); | |
252b5132 | 7296 | |
082b7297 | 7297 | bfd_section_already_linked_table_free (); |
9503fd87 | 7298 | |
252b5132 RH |
7299 | /* Make sure that we're not mixing architectures. We call this |
7300 | after all the input files have been opened, but before we do any | |
7301 | other processing, so that any operations merge_private_bfd_data | |
7302 | does on the output file will be known during the rest of the | |
7303 | link. */ | |
7304 | lang_check (); | |
7305 | ||
7306 | /* Handle .exports instead of a version script if we're told to do so. */ | |
7307 | if (command_line.version_exports_section) | |
7308 | lang_do_version_exports_section (); | |
7309 | ||
7310 | /* Build all sets based on the information gathered from the input | |
7311 | files. */ | |
7312 | ldctor_build_sets (); | |
7313 | ||
7dba9362 AM |
7314 | /* Give initial values for __start and __stop symbols, so that ELF |
7315 | gc_sections will keep sections referenced by these symbols. Must | |
7316 | be done before lang_do_assignments below. */ | |
7317 | if (config.build_constructors) | |
7318 | lang_init_start_stop (); | |
7319 | ||
2aa9aad9 NC |
7320 | /* PR 13683: We must rerun the assignments prior to running garbage |
7321 | collection in order to make sure that all symbol aliases are resolved. */ | |
7322 | lang_do_assignments (lang_mark_phase_enum); | |
cc9ad334 SKS |
7323 | |
7324 | lang_do_memory_regions(); | |
2aa9aad9 NC |
7325 | expld.phase = lang_first_phase_enum; |
7326 | ||
08da4cac | 7327 | /* Size up the common data. */ |
252b5132 RH |
7328 | lang_common (); |
7329 | ||
c4621b33 AM |
7330 | /* Remove unreferenced sections if asked to. */ |
7331 | lang_gc_sections (); | |
7332 | ||
fbf05aa7 L |
7333 | /* Check relocations. */ |
7334 | lang_check_relocs (); | |
7335 | ||
5c3261b0 L |
7336 | ldemul_after_check_relocs (); |
7337 | ||
bcaa7b3e L |
7338 | /* Update wild statements. */ |
7339 | update_wild_statements (statement_list.head); | |
7340 | ||
252b5132 | 7341 | /* Run through the contours of the script and attach input sections |
08da4cac | 7342 | to the correct output sections. */ |
e759c116 | 7343 | lang_statement_iteration++; |
1579bae1 | 7344 | map_input_to_output_sections (statement_list.head, NULL, NULL); |
252b5132 | 7345 | |
53d25da6 AM |
7346 | process_insert_statements (); |
7347 | ||
08da4cac | 7348 | /* Find any sections not attached explicitly and handle them. */ |
252b5132 RH |
7349 | lang_place_orphans (); |
7350 | ||
0e1862bb | 7351 | if (!bfd_link_relocatable (&link_info)) |
862120bd | 7352 | { |
57ceae94 AM |
7353 | asection *found; |
7354 | ||
7355 | /* Merge SEC_MERGE sections. This has to be done after GC of | |
7356 | sections, so that GCed sections are not merged, but before | |
7357 | assigning dynamic symbols, since removing whole input sections | |
7358 | is hard then. */ | |
f13a99db | 7359 | bfd_merge_sections (link_info.output_bfd, &link_info); |
57ceae94 | 7360 | |
862120bd | 7361 | /* Look for a text section and set the readonly attribute in it. */ |
f13a99db | 7362 | found = bfd_get_section_by_name (link_info.output_bfd, ".text"); |
862120bd | 7363 | |
1579bae1 | 7364 | if (found != NULL) |
862120bd AM |
7365 | { |
7366 | if (config.text_read_only) | |
7367 | found->flags |= SEC_READONLY; | |
7368 | else | |
7369 | found->flags &= ~SEC_READONLY; | |
7370 | } | |
7371 | } | |
7372 | ||
77f5e65e AB |
7373 | /* Copy forward lma regions for output sections in same lma region. */ |
7374 | lang_propagate_lma_regions (); | |
7375 | ||
7dba9362 AM |
7376 | /* Defining __start/__stop symbols early for --gc-sections to work |
7377 | around a glibc build problem can result in these symbols being | |
7378 | defined when they should not be. Fix them now. */ | |
7379 | if (config.build_constructors) | |
7380 | lang_undef_start_stop (); | |
7381 | ||
7382 | /* Define .startof./.sizeof. symbols with preliminary values before | |
7383 | dynamic symbols are created. */ | |
7384 | if (!bfd_link_relocatable (&link_info)) | |
7385 | lang_init_startof_sizeof (); | |
7386 | ||
862120bd AM |
7387 | /* Do anything special before sizing sections. This is where ELF |
7388 | and other back-ends size dynamic sections. */ | |
252b5132 RH |
7389 | ldemul_before_allocation (); |
7390 | ||
7391 | /* We must record the program headers before we try to fix the | |
7392 | section positions, since they will affect SIZEOF_HEADERS. */ | |
7393 | lang_record_phdrs (); | |
7394 | ||
b10a8ae0 | 7395 | /* Check relro sections. */ |
0e1862bb | 7396 | if (link_info.relro && !bfd_link_relocatable (&link_info)) |
b10a8ae0 L |
7397 | lang_find_relro_sections (); |
7398 | ||
b3327aad | 7399 | /* Size up the sections. */ |
0aa7f586 | 7400 | lang_size_sections (NULL, !RELAXATION_ENABLED); |
b3327aad | 7401 | |
252b5132 | 7402 | /* See if anything special should be done now we know how big |
eaeb0a9d | 7403 | everything is. This is where relaxation is done. */ |
252b5132 RH |
7404 | ldemul_after_allocation (); |
7405 | ||
7dba9362 AM |
7406 | /* Fix any __start, __stop, .startof. or .sizeof. symbols. */ |
7407 | lang_finalize_start_stop (); | |
252b5132 | 7408 | |
08da4cac KH |
7409 | /* Do all the assignments, now that we know the final resting places |
7410 | of all the symbols. */ | |
2f65ac72 | 7411 | lang_do_assignments (lang_final_phase_enum); |
252b5132 | 7412 | |
8ded5a0f AM |
7413 | ldemul_finish (); |
7414 | ||
975f8a9e AM |
7415 | /* Convert absolute symbols to section relative. */ |
7416 | ldexp_finalize_syms (); | |
7417 | ||
252b5132 | 7418 | /* Make sure that the section addresses make sense. */ |
662ef24b | 7419 | if (command_line.check_section_addresses) |
252b5132 | 7420 | lang_check_section_addresses (); |
5f992e62 | 7421 | |
0a618243 AB |
7422 | /* Check any required symbols are known. */ |
7423 | ldlang_check_require_defined_symbols (); | |
7424 | ||
750877ba | 7425 | lang_end (); |
252b5132 RH |
7426 | } |
7427 | ||
7428 | /* EXPORTED TO YACC */ | |
7429 | ||
7430 | void | |
1579bae1 AM |
7431 | lang_add_wild (struct wildcard_spec *filespec, |
7432 | struct wildcard_list *section_list, | |
7433 | bfd_boolean keep_sections) | |
252b5132 | 7434 | { |
b6bf44ba | 7435 | struct wildcard_list *curr, *next; |
d3ce72d0 | 7436 | lang_wild_statement_type *new_stmt; |
b6bf44ba AM |
7437 | |
7438 | /* Reverse the list as the parser puts it back to front. */ | |
7439 | for (curr = section_list, section_list = NULL; | |
7440 | curr != NULL; | |
7441 | section_list = curr, curr = next) | |
7442 | { | |
b6bf44ba AM |
7443 | next = curr->next; |
7444 | curr->next = section_list; | |
7445 | } | |
7446 | ||
7447 | if (filespec != NULL && filespec->name != NULL) | |
252b5132 | 7448 | { |
b6bf44ba AM |
7449 | if (strcmp (filespec->name, "*") == 0) |
7450 | filespec->name = NULL; | |
0aa7f586 | 7451 | else if (!wildcardp (filespec->name)) |
b34976b6 | 7452 | lang_has_input_file = TRUE; |
252b5132 | 7453 | } |
b6bf44ba | 7454 | |
d3ce72d0 NC |
7455 | new_stmt = new_stat (lang_wild_statement, stat_ptr); |
7456 | new_stmt->filename = NULL; | |
7457 | new_stmt->filenames_sorted = FALSE; | |
ae17ab41 | 7458 | new_stmt->section_flag_list = NULL; |
8f1732fc | 7459 | new_stmt->exclude_name_list = NULL; |
b6bf44ba | 7460 | if (filespec != NULL) |
252b5132 | 7461 | { |
d3ce72d0 NC |
7462 | new_stmt->filename = filespec->name; |
7463 | new_stmt->filenames_sorted = filespec->sorted == by_name; | |
ae17ab41 | 7464 | new_stmt->section_flag_list = filespec->section_flag_list; |
8f1732fc | 7465 | new_stmt->exclude_name_list = filespec->exclude_name_list; |
252b5132 | 7466 | } |
d3ce72d0 NC |
7467 | new_stmt->section_list = section_list; |
7468 | new_stmt->keep_sections = keep_sections; | |
7469 | lang_list_init (&new_stmt->children); | |
7470 | analyze_walk_wild_section_handler (new_stmt); | |
252b5132 RH |
7471 | } |
7472 | ||
7473 | void | |
ba916c8a MM |
7474 | lang_section_start (const char *name, etree_type *address, |
7475 | const segment_type *segment) | |
252b5132 | 7476 | { |
d1778b88 | 7477 | lang_address_statement_type *ad; |
252b5132 | 7478 | |
d1778b88 | 7479 | ad = new_stat (lang_address_statement, stat_ptr); |
252b5132 RH |
7480 | ad->section_name = name; |
7481 | ad->address = address; | |
ba916c8a | 7482 | ad->segment = segment; |
252b5132 RH |
7483 | } |
7484 | ||
7485 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called | |
7486 | because of a -e argument on the command line, or zero if this is | |
7487 | called by ENTRY in a linker script. Command line arguments take | |
7488 | precedence. */ | |
7489 | ||
7490 | void | |
1579bae1 | 7491 | lang_add_entry (const char *name, bfd_boolean cmdline) |
252b5132 | 7492 | { |
e3e942e9 | 7493 | if (entry_symbol.name == NULL |
252b5132 | 7494 | || cmdline |
0aa7f586 | 7495 | || !entry_from_cmdline) |
252b5132 | 7496 | { |
e3e942e9 | 7497 | entry_symbol.name = name; |
252b5132 RH |
7498 | entry_from_cmdline = cmdline; |
7499 | } | |
7500 | } | |
7501 | ||
a359509e ZW |
7502 | /* Set the default start symbol to NAME. .em files should use this, |
7503 | not lang_add_entry, to override the use of "start" if neither the | |
7504 | linker script nor the command line specifies an entry point. NAME | |
7505 | must be permanently allocated. */ | |
7506 | void | |
7507 | lang_default_entry (const char *name) | |
7508 | { | |
7509 | entry_symbol_default = name; | |
7510 | } | |
7511 | ||
252b5132 | 7512 | void |
1579bae1 | 7513 | lang_add_target (const char *name) |
252b5132 | 7514 | { |
d3ce72d0 | 7515 | lang_target_statement_type *new_stmt; |
252b5132 | 7516 | |
d3ce72d0 NC |
7517 | new_stmt = new_stat (lang_target_statement, stat_ptr); |
7518 | new_stmt->target = name; | |
252b5132 RH |
7519 | } |
7520 | ||
7521 | void | |
1579bae1 | 7522 | lang_add_map (const char *name) |
252b5132 RH |
7523 | { |
7524 | while (*name) | |
7525 | { | |
7526 | switch (*name) | |
7527 | { | |
08da4cac | 7528 | case 'F': |
b34976b6 | 7529 | map_option_f = TRUE; |
252b5132 RH |
7530 | break; |
7531 | } | |
7532 | name++; | |
7533 | } | |
7534 | } | |
7535 | ||
7536 | void | |
1579bae1 | 7537 | lang_add_fill (fill_type *fill) |
252b5132 | 7538 | { |
d3ce72d0 | 7539 | lang_fill_statement_type *new_stmt; |
252b5132 | 7540 | |
d3ce72d0 NC |
7541 | new_stmt = new_stat (lang_fill_statement, stat_ptr); |
7542 | new_stmt->fill = fill; | |
252b5132 RH |
7543 | } |
7544 | ||
7545 | void | |
1579bae1 | 7546 | lang_add_data (int type, union etree_union *exp) |
252b5132 | 7547 | { |
d3ce72d0 | 7548 | lang_data_statement_type *new_stmt; |
252b5132 | 7549 | |
d3ce72d0 NC |
7550 | new_stmt = new_stat (lang_data_statement, stat_ptr); |
7551 | new_stmt->exp = exp; | |
7552 | new_stmt->type = type; | |
252b5132 RH |
7553 | } |
7554 | ||
7555 | /* Create a new reloc statement. RELOC is the BFD relocation type to | |
7556 | generate. HOWTO is the corresponding howto structure (we could | |
7557 | look this up, but the caller has already done so). SECTION is the | |
7558 | section to generate a reloc against, or NAME is the name of the | |
7559 | symbol to generate a reloc against. Exactly one of SECTION and | |
7560 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
7561 | ||
7562 | void | |
1579bae1 AM |
7563 | lang_add_reloc (bfd_reloc_code_real_type reloc, |
7564 | reloc_howto_type *howto, | |
7565 | asection *section, | |
7566 | const char *name, | |
7567 | union etree_union *addend) | |
252b5132 RH |
7568 | { |
7569 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
5f992e62 | 7570 | |
252b5132 RH |
7571 | p->reloc = reloc; |
7572 | p->howto = howto; | |
7573 | p->section = section; | |
7574 | p->name = name; | |
7575 | p->addend_exp = addend; | |
7576 | ||
7577 | p->addend_value = 0; | |
7578 | p->output_section = NULL; | |
7fabd029 | 7579 | p->output_offset = 0; |
252b5132 RH |
7580 | } |
7581 | ||
7582 | lang_assignment_statement_type * | |
1579bae1 | 7583 | lang_add_assignment (etree_type *exp) |
252b5132 | 7584 | { |
d3ce72d0 | 7585 | lang_assignment_statement_type *new_stmt; |
252b5132 | 7586 | |
d3ce72d0 NC |
7587 | new_stmt = new_stat (lang_assignment_statement, stat_ptr); |
7588 | new_stmt->exp = exp; | |
7589 | return new_stmt; | |
252b5132 RH |
7590 | } |
7591 | ||
7592 | void | |
1579bae1 | 7593 | lang_add_attribute (enum statement_enum attribute) |
252b5132 | 7594 | { |
bd4d42c1 | 7595 | new_statement (attribute, sizeof (lang_statement_header_type), stat_ptr); |
252b5132 RH |
7596 | } |
7597 | ||
7598 | void | |
1579bae1 | 7599 | lang_startup (const char *name) |
252b5132 | 7600 | { |
1e915804 | 7601 | if (first_file->filename != NULL) |
252b5132 | 7602 | { |
df5f2391 | 7603 | einfo (_("%F%P: multiple STARTUP files\n")); |
252b5132 RH |
7604 | } |
7605 | first_file->filename = name; | |
7606 | first_file->local_sym_name = name; | |
66be1055 | 7607 | first_file->flags.real = TRUE; |
252b5132 RH |
7608 | } |
7609 | ||
7610 | void | |
1579bae1 | 7611 | lang_float (bfd_boolean maybe) |
252b5132 RH |
7612 | { |
7613 | lang_float_flag = maybe; | |
7614 | } | |
7615 | ||
ee3cc2e2 RS |
7616 | |
7617 | /* Work out the load- and run-time regions from a script statement, and | |
7618 | store them in *LMA_REGION and *REGION respectively. | |
7619 | ||
a747ee4d NC |
7620 | MEMSPEC is the name of the run-time region, or the value of |
7621 | DEFAULT_MEMORY_REGION if the statement didn't specify one. | |
7622 | LMA_MEMSPEC is the name of the load-time region, or null if the | |
7623 | statement didn't specify one.HAVE_LMA_P is TRUE if the statement | |
7624 | had an explicit load address. | |
ee3cc2e2 RS |
7625 | |
7626 | It is an error to specify both a load region and a load address. */ | |
7627 | ||
7628 | static void | |
6bdafbeb NC |
7629 | lang_get_regions (lang_memory_region_type **region, |
7630 | lang_memory_region_type **lma_region, | |
1579bae1 AM |
7631 | const char *memspec, |
7632 | const char *lma_memspec, | |
6bdafbeb NC |
7633 | bfd_boolean have_lma, |
7634 | bfd_boolean have_vma) | |
ee3cc2e2 | 7635 | { |
a747ee4d | 7636 | *lma_region = lang_memory_region_lookup (lma_memspec, FALSE); |
ee3cc2e2 | 7637 | |
6feb9908 AM |
7638 | /* If no runtime region or VMA has been specified, but the load region |
7639 | has been specified, then use the load region for the runtime region | |
7640 | as well. */ | |
6bdafbeb | 7641 | if (lma_memspec != NULL |
0aa7f586 | 7642 | && !have_vma |
6bdafbeb | 7643 | && strcmp (memspec, DEFAULT_MEMORY_REGION) == 0) |
ee3cc2e2 RS |
7644 | *region = *lma_region; |
7645 | else | |
a747ee4d | 7646 | *region = lang_memory_region_lookup (memspec, FALSE); |
ee3cc2e2 | 7647 | |
6bdafbeb | 7648 | if (have_lma && lma_memspec != 0) |
c1c8c1ef | 7649 | einfo (_("%X%P:%pS: section has both a load address and a load region\n"), |
dab69f68 | 7650 | NULL); |
ee3cc2e2 RS |
7651 | } |
7652 | ||
252b5132 | 7653 | void |
6bdafbeb NC |
7654 | lang_leave_output_section_statement (fill_type *fill, const char *memspec, |
7655 | lang_output_section_phdr_list *phdrs, | |
7656 | const char *lma_memspec) | |
252b5132 | 7657 | { |
ee3cc2e2 RS |
7658 | lang_get_regions (¤t_section->region, |
7659 | ¤t_section->lma_region, | |
7660 | memspec, lma_memspec, | |
6bdafbeb NC |
7661 | current_section->load_base != NULL, |
7662 | current_section->addr_tree != NULL); | |
113e6845 | 7663 | |
252b5132 | 7664 | current_section->fill = fill; |
252b5132 | 7665 | current_section->phdrs = phdrs; |
bde18da4 | 7666 | pop_stat_ptr (); |
252b5132 RH |
7667 | } |
7668 | ||
252b5132 | 7669 | void |
1579bae1 AM |
7670 | lang_statement_append (lang_statement_list_type *list, |
7671 | lang_statement_union_type *element, | |
7672 | lang_statement_union_type **field) | |
252b5132 RH |
7673 | { |
7674 | *(list->tail) = element; | |
7675 | list->tail = field; | |
7676 | } | |
7677 | ||
7678 | /* Set the output format type. -oformat overrides scripts. */ | |
7679 | ||
7680 | void | |
1579bae1 AM |
7681 | lang_add_output_format (const char *format, |
7682 | const char *big, | |
7683 | const char *little, | |
7684 | int from_script) | |
252b5132 RH |
7685 | { |
7686 | if (output_target == NULL || !from_script) | |
7687 | { | |
7688 | if (command_line.endian == ENDIAN_BIG | |
7689 | && big != NULL) | |
7690 | format = big; | |
7691 | else if (command_line.endian == ENDIAN_LITTLE | |
7692 | && little != NULL) | |
7693 | format = little; | |
7694 | ||
7695 | output_target = format; | |
7696 | } | |
7697 | } | |
7698 | ||
53d25da6 AM |
7699 | void |
7700 | lang_add_insert (const char *where, int is_before) | |
7701 | { | |
d3ce72d0 | 7702 | lang_insert_statement_type *new_stmt; |
53d25da6 | 7703 | |
d3ce72d0 NC |
7704 | new_stmt = new_stat (lang_insert_statement, stat_ptr); |
7705 | new_stmt->where = where; | |
7706 | new_stmt->is_before = is_before; | |
53d25da6 AM |
7707 | saved_script_handle = previous_script_handle; |
7708 | } | |
7709 | ||
252b5132 RH |
7710 | /* Enter a group. This creates a new lang_group_statement, and sets |
7711 | stat_ptr to build new statements within the group. */ | |
7712 | ||
7713 | void | |
1579bae1 | 7714 | lang_enter_group (void) |
252b5132 RH |
7715 | { |
7716 | lang_group_statement_type *g; | |
7717 | ||
7718 | g = new_stat (lang_group_statement, stat_ptr); | |
7719 | lang_list_init (&g->children); | |
bde18da4 | 7720 | push_stat_ptr (&g->children); |
252b5132 RH |
7721 | } |
7722 | ||
7723 | /* Leave a group. This just resets stat_ptr to start writing to the | |
7724 | regular list of statements again. Note that this will not work if | |
7725 | groups can occur inside anything else which can adjust stat_ptr, | |
7726 | but currently they can't. */ | |
7727 | ||
7728 | void | |
1579bae1 | 7729 | lang_leave_group (void) |
252b5132 | 7730 | { |
bde18da4 | 7731 | pop_stat_ptr (); |
252b5132 RH |
7732 | } |
7733 | ||
7734 | /* Add a new program header. This is called for each entry in a PHDRS | |
7735 | command in a linker script. */ | |
7736 | ||
7737 | void | |
1579bae1 AM |
7738 | lang_new_phdr (const char *name, |
7739 | etree_type *type, | |
7740 | bfd_boolean filehdr, | |
7741 | bfd_boolean phdrs, | |
7742 | etree_type *at, | |
7743 | etree_type *flags) | |
252b5132 RH |
7744 | { |
7745 | struct lang_phdr *n, **pp; | |
5c1a3f0f | 7746 | bfd_boolean hdrs; |
252b5132 | 7747 | |
1e9cc1c2 | 7748 | n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr)); |
252b5132 RH |
7749 | n->next = NULL; |
7750 | n->name = name; | |
e9ee469a | 7751 | n->type = exp_get_value_int (type, 0, "program header type"); |
252b5132 RH |
7752 | n->filehdr = filehdr; |
7753 | n->phdrs = phdrs; | |
7754 | n->at = at; | |
7755 | n->flags = flags; | |
1e0061d2 | 7756 | |
5c1a3f0f | 7757 | hdrs = n->type == 1 && (phdrs || filehdr); |
252b5132 RH |
7758 | |
7759 | for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next) | |
4100cea3 AM |
7760 | if (hdrs |
7761 | && (*pp)->type == 1 | |
7762 | && !((*pp)->filehdr || (*pp)->phdrs)) | |
5c1a3f0f | 7763 | { |
c1c8c1ef | 7764 | einfo (_("%X%P:%pS: PHDRS and FILEHDR are not supported" |
dab69f68 | 7765 | " when prior PT_LOAD headers lack them\n"), NULL); |
5c1a3f0f NS |
7766 | hdrs = FALSE; |
7767 | } | |
7768 | ||
252b5132 RH |
7769 | *pp = n; |
7770 | } | |
7771 | ||
7772 | /* Record the program header information in the output BFD. FIXME: We | |
7773 | should not be calling an ELF specific function here. */ | |
7774 | ||
7775 | static void | |
1579bae1 | 7776 | lang_record_phdrs (void) |
252b5132 RH |
7777 | { |
7778 | unsigned int alc; | |
7779 | asection **secs; | |
6bdafbeb | 7780 | lang_output_section_phdr_list *last; |
252b5132 | 7781 | struct lang_phdr *l; |
afd7a018 | 7782 | lang_output_section_statement_type *os; |
252b5132 RH |
7783 | |
7784 | alc = 10; | |
1e9cc1c2 | 7785 | secs = (asection **) xmalloc (alc * sizeof (asection *)); |
252b5132 | 7786 | last = NULL; |
591a748a | 7787 | |
252b5132 RH |
7788 | for (l = lang_phdr_list; l != NULL; l = l->next) |
7789 | { | |
7790 | unsigned int c; | |
7791 | flagword flags; | |
7792 | bfd_vma at; | |
7793 | ||
7794 | c = 0; | |
afd7a018 AM |
7795 | for (os = &lang_output_section_statement.head->output_section_statement; |
7796 | os != NULL; | |
7797 | os = os->next) | |
252b5132 | 7798 | { |
6bdafbeb | 7799 | lang_output_section_phdr_list *pl; |
252b5132 | 7800 | |
66c103b7 | 7801 | if (os->constraint < 0) |
0841712e | 7802 | continue; |
252b5132 RH |
7803 | |
7804 | pl = os->phdrs; | |
7805 | if (pl != NULL) | |
7806 | last = pl; | |
7807 | else | |
7808 | { | |
7809 | if (os->sectype == noload_section | |
7810 | || os->bfd_section == NULL | |
7811 | || (os->bfd_section->flags & SEC_ALLOC) == 0) | |
7812 | continue; | |
591a748a | 7813 | |
7512c397 AM |
7814 | /* Don't add orphans to PT_INTERP header. */ |
7815 | if (l->type == 3) | |
7816 | continue; | |
7817 | ||
e9442572 | 7818 | if (last == NULL) |
591a748a | 7819 | { |
0aa7f586 | 7820 | lang_output_section_statement_type *tmp_os; |
591a748a NC |
7821 | |
7822 | /* If we have not run across a section with a program | |
7823 | header assigned to it yet, then scan forwards to find | |
7824 | one. This prevents inconsistencies in the linker's | |
7825 | behaviour when a script has specified just a single | |
7826 | header and there are sections in that script which are | |
7827 | not assigned to it, and which occur before the first | |
7828 | use of that header. See here for more details: | |
7829 | http://sourceware.org/ml/binutils/2007-02/msg00291.html */ | |
7830 | for (tmp_os = os; tmp_os; tmp_os = tmp_os->next) | |
7831 | if (tmp_os->phdrs) | |
e9442572 AM |
7832 | { |
7833 | last = tmp_os->phdrs; | |
7834 | break; | |
7835 | } | |
7836 | if (last == NULL) | |
7837 | einfo (_("%F%P: no sections assigned to phdrs\n")); | |
591a748a | 7838 | } |
e9442572 | 7839 | pl = last; |
252b5132 RH |
7840 | } |
7841 | ||
7842 | if (os->bfd_section == NULL) | |
7843 | continue; | |
7844 | ||
7845 | for (; pl != NULL; pl = pl->next) | |
7846 | { | |
7847 | if (strcmp (pl->name, l->name) == 0) | |
7848 | { | |
7849 | if (c >= alc) | |
7850 | { | |
7851 | alc *= 2; | |
1e9cc1c2 | 7852 | secs = (asection **) xrealloc (secs, |
4724d37e | 7853 | alc * sizeof (asection *)); |
252b5132 RH |
7854 | } |
7855 | secs[c] = os->bfd_section; | |
7856 | ++c; | |
b34976b6 | 7857 | pl->used = TRUE; |
252b5132 RH |
7858 | } |
7859 | } | |
7860 | } | |
7861 | ||
7862 | if (l->flags == NULL) | |
7863 | flags = 0; | |
7864 | else | |
e9ee469a | 7865 | flags = exp_get_vma (l->flags, 0, "phdr flags"); |
252b5132 RH |
7866 | |
7867 | if (l->at == NULL) | |
7868 | at = 0; | |
7869 | else | |
e9ee469a | 7870 | at = exp_get_vma (l->at, 0, "phdr load address"); |
252b5132 | 7871 | |
0aa7f586 AM |
7872 | if (!bfd_record_phdr (link_info.output_bfd, l->type, |
7873 | l->flags != NULL, flags, l->at != NULL, | |
7874 | at, l->filehdr, l->phdrs, c, secs)) | |
252b5132 RH |
7875 | einfo (_("%F%P: bfd_record_phdr failed: %E\n")); |
7876 | } | |
7877 | ||
7878 | free (secs); | |
7879 | ||
7880 | /* Make sure all the phdr assignments succeeded. */ | |
afd7a018 AM |
7881 | for (os = &lang_output_section_statement.head->output_section_statement; |
7882 | os != NULL; | |
7883 | os = os->next) | |
252b5132 | 7884 | { |
6bdafbeb | 7885 | lang_output_section_phdr_list *pl; |
252b5132 | 7886 | |
66c103b7 | 7887 | if (os->constraint < 0 |
afd7a018 | 7888 | || os->bfd_section == NULL) |
252b5132 RH |
7889 | continue; |
7890 | ||
afd7a018 | 7891 | for (pl = os->phdrs; |
252b5132 RH |
7892 | pl != NULL; |
7893 | pl = pl->next) | |
0aa7f586 | 7894 | if (!pl->used && strcmp (pl->name, "NONE") != 0) |
252b5132 | 7895 | einfo (_("%X%P: section `%s' assigned to non-existent phdr `%s'\n"), |
afd7a018 | 7896 | os->name, pl->name); |
252b5132 RH |
7897 | } |
7898 | } | |
7899 | ||
7900 | /* Record a list of sections which may not be cross referenced. */ | |
7901 | ||
7902 | void | |
6bdafbeb | 7903 | lang_add_nocrossref (lang_nocrossref_type *l) |
252b5132 RH |
7904 | { |
7905 | struct lang_nocrossrefs *n; | |
7906 | ||
1e9cc1c2 | 7907 | n = (struct lang_nocrossrefs *) xmalloc (sizeof *n); |
252b5132 RH |
7908 | n->next = nocrossref_list; |
7909 | n->list = l; | |
cdf96953 | 7910 | n->onlyfirst = FALSE; |
252b5132 RH |
7911 | nocrossref_list = n; |
7912 | ||
7913 | /* Set notice_all so that we get informed about all symbols. */ | |
b34976b6 | 7914 | link_info.notice_all = TRUE; |
252b5132 | 7915 | } |
cdf96953 MF |
7916 | |
7917 | /* Record a section that cannot be referenced from a list of sections. */ | |
7918 | ||
7919 | void | |
7920 | lang_add_nocrossref_to (lang_nocrossref_type *l) | |
7921 | { | |
7922 | lang_add_nocrossref (l); | |
7923 | nocrossref_list->onlyfirst = TRUE; | |
7924 | } | |
252b5132 RH |
7925 | \f |
7926 | /* Overlay handling. We handle overlays with some static variables. */ | |
7927 | ||
7928 | /* The overlay virtual address. */ | |
7929 | static etree_type *overlay_vma; | |
7e7d5768 AM |
7930 | /* And subsection alignment. */ |
7931 | static etree_type *overlay_subalign; | |
252b5132 | 7932 | |
252b5132 RH |
7933 | /* An expression for the maximum section size seen so far. */ |
7934 | static etree_type *overlay_max; | |
7935 | ||
7936 | /* A list of all the sections in this overlay. */ | |
7937 | ||
89cdebba | 7938 | struct overlay_list { |
252b5132 RH |
7939 | struct overlay_list *next; |
7940 | lang_output_section_statement_type *os; | |
7941 | }; | |
7942 | ||
7943 | static struct overlay_list *overlay_list; | |
7944 | ||
7945 | /* Start handling an overlay. */ | |
7946 | ||
7947 | void | |
7e7d5768 | 7948 | lang_enter_overlay (etree_type *vma_expr, etree_type *subalign) |
252b5132 RH |
7949 | { |
7950 | /* The grammar should prevent nested overlays from occurring. */ | |
7e7d5768 AM |
7951 | ASSERT (overlay_vma == NULL |
7952 | && overlay_subalign == NULL | |
7953 | && overlay_max == NULL); | |
252b5132 RH |
7954 | |
7955 | overlay_vma = vma_expr; | |
7e7d5768 | 7956 | overlay_subalign = subalign; |
252b5132 RH |
7957 | } |
7958 | ||
7959 | /* Start a section in an overlay. We handle this by calling | |
9f88b410 RS |
7960 | lang_enter_output_section_statement with the correct VMA. |
7961 | lang_leave_overlay sets up the LMA and memory regions. */ | |
252b5132 RH |
7962 | |
7963 | void | |
1579bae1 | 7964 | lang_enter_overlay_section (const char *name) |
252b5132 RH |
7965 | { |
7966 | struct overlay_list *n; | |
7967 | etree_type *size; | |
7968 | ||
152d792f | 7969 | lang_enter_output_section_statement (name, overlay_vma, overlay_section, |
1eec346e | 7970 | 0, overlay_subalign, 0, 0, 0); |
252b5132 | 7971 | |
9f88b410 | 7972 | /* If this is the first section, then base the VMA of future |
252b5132 RH |
7973 | sections on this one. This will work correctly even if `.' is |
7974 | used in the addresses. */ | |
7975 | if (overlay_list == NULL) | |
9f88b410 | 7976 | overlay_vma = exp_nameop (ADDR, name); |
252b5132 RH |
7977 | |
7978 | /* Remember the section. */ | |
1e9cc1c2 | 7979 | n = (struct overlay_list *) xmalloc (sizeof *n); |
252b5132 RH |
7980 | n->os = current_section; |
7981 | n->next = overlay_list; | |
7982 | overlay_list = n; | |
7983 | ||
7984 | size = exp_nameop (SIZEOF, name); | |
7985 | ||
252b5132 RH |
7986 | /* Arrange to work out the maximum section end address. */ |
7987 | if (overlay_max == NULL) | |
7988 | overlay_max = size; | |
7989 | else | |
7990 | overlay_max = exp_binop (MAX_K, overlay_max, size); | |
7991 | } | |
7992 | ||
7993 | /* Finish a section in an overlay. There isn't any special to do | |
7994 | here. */ | |
7995 | ||
7996 | void | |
1579bae1 | 7997 | lang_leave_overlay_section (fill_type *fill, |
6bdafbeb | 7998 | lang_output_section_phdr_list *phdrs) |
252b5132 RH |
7999 | { |
8000 | const char *name; | |
8001 | char *clean, *s2; | |
8002 | const char *s1; | |
8003 | char *buf; | |
8004 | ||
8005 | name = current_section->name; | |
8006 | ||
a747ee4d NC |
8007 | /* For now, assume that DEFAULT_MEMORY_REGION is the run-time memory |
8008 | region and that no load-time region has been specified. It doesn't | |
8009 | really matter what we say here, since lang_leave_overlay will | |
8010 | override it. */ | |
8011 | lang_leave_output_section_statement (fill, DEFAULT_MEMORY_REGION, phdrs, 0); | |
252b5132 RH |
8012 | |
8013 | /* Define the magic symbols. */ | |
8014 | ||
1e9cc1c2 | 8015 | clean = (char *) xmalloc (strlen (name) + 1); |
252b5132 RH |
8016 | s2 = clean; |
8017 | for (s1 = name; *s1 != '\0'; s1++) | |
3882b010 | 8018 | if (ISALNUM (*s1) || *s1 == '_') |
252b5132 RH |
8019 | *s2++ = *s1; |
8020 | *s2 = '\0'; | |
8021 | ||
1e9cc1c2 | 8022 | buf = (char *) xmalloc (strlen (clean) + sizeof "__load_start_"); |
252b5132 | 8023 | sprintf (buf, "__load_start_%s", clean); |
34711ca3 AM |
8024 | lang_add_assignment (exp_provide (buf, |
8025 | exp_nameop (LOADADDR, name), | |
8026 | FALSE)); | |
252b5132 | 8027 | |
1e9cc1c2 | 8028 | buf = (char *) xmalloc (strlen (clean) + sizeof "__load_stop_"); |
252b5132 | 8029 | sprintf (buf, "__load_stop_%s", clean); |
34711ca3 AM |
8030 | lang_add_assignment (exp_provide (buf, |
8031 | exp_binop ('+', | |
8032 | exp_nameop (LOADADDR, name), | |
8033 | exp_nameop (SIZEOF, name)), | |
8034 | FALSE)); | |
252b5132 RH |
8035 | |
8036 | free (clean); | |
8037 | } | |
8038 | ||
8039 | /* Finish an overlay. If there are any overlay wide settings, this | |
8040 | looks through all the sections in the overlay and sets them. */ | |
8041 | ||
8042 | void | |
1579bae1 AM |
8043 | lang_leave_overlay (etree_type *lma_expr, |
8044 | int nocrossrefs, | |
8045 | fill_type *fill, | |
8046 | const char *memspec, | |
6bdafbeb | 8047 | lang_output_section_phdr_list *phdrs, |
1579bae1 | 8048 | const char *lma_memspec) |
252b5132 RH |
8049 | { |
8050 | lang_memory_region_type *region; | |
562d3460 | 8051 | lang_memory_region_type *lma_region; |
252b5132 | 8052 | struct overlay_list *l; |
6bdafbeb | 8053 | lang_nocrossref_type *nocrossref; |
252b5132 | 8054 | |
ee3cc2e2 RS |
8055 | lang_get_regions (®ion, &lma_region, |
8056 | memspec, lma_memspec, | |
6bdafbeb | 8057 | lma_expr != NULL, FALSE); |
562d3460 | 8058 | |
252b5132 RH |
8059 | nocrossref = NULL; |
8060 | ||
9f88b410 RS |
8061 | /* After setting the size of the last section, set '.' to end of the |
8062 | overlay region. */ | |
8063 | if (overlay_list != NULL) | |
6d8bf25d AM |
8064 | { |
8065 | overlay_list->os->update_dot = 1; | |
8066 | overlay_list->os->update_dot_tree | |
eb8476a6 | 8067 | = exp_assign (".", exp_binop ('+', overlay_vma, overlay_max), FALSE); |
6d8bf25d | 8068 | } |
9f88b410 | 8069 | |
252b5132 RH |
8070 | l = overlay_list; |
8071 | while (l != NULL) | |
8072 | { | |
8073 | struct overlay_list *next; | |
8074 | ||
1579bae1 | 8075 | if (fill != NULL && l->os->fill == NULL) |
252b5132 | 8076 | l->os->fill = fill; |
1545243b | 8077 | |
9f88b410 RS |
8078 | l->os->region = region; |
8079 | l->os->lma_region = lma_region; | |
8080 | ||
8081 | /* The first section has the load address specified in the | |
8082 | OVERLAY statement. The rest are worked out from that. | |
8083 | The base address is not needed (and should be null) if | |
8084 | an LMA region was specified. */ | |
8085 | if (l->next == 0) | |
152d792f AM |
8086 | { |
8087 | l->os->load_base = lma_expr; | |
8088 | l->os->sectype = normal_section; | |
8089 | } | |
252b5132 RH |
8090 | if (phdrs != NULL && l->os->phdrs == NULL) |
8091 | l->os->phdrs = phdrs; | |
8092 | ||
9f88b410 | 8093 | if (nocrossrefs) |
252b5132 | 8094 | { |
6bdafbeb | 8095 | lang_nocrossref_type *nc; |
252b5132 | 8096 | |
1e9cc1c2 | 8097 | nc = (lang_nocrossref_type *) xmalloc (sizeof *nc); |
252b5132 RH |
8098 | nc->name = l->os->name; |
8099 | nc->next = nocrossref; | |
8100 | nocrossref = nc; | |
8101 | } | |
8102 | ||
8103 | next = l->next; | |
8104 | free (l); | |
8105 | l = next; | |
8106 | } | |
8107 | ||
8108 | if (nocrossref != NULL) | |
8109 | lang_add_nocrossref (nocrossref); | |
8110 | ||
252b5132 | 8111 | overlay_vma = NULL; |
252b5132 RH |
8112 | overlay_list = NULL; |
8113 | overlay_max = NULL; | |
8cb1232a | 8114 | overlay_subalign = NULL; |
252b5132 RH |
8115 | } |
8116 | \f | |
8117 | /* Version handling. This is only useful for ELF. */ | |
8118 | ||
108ba305 JJ |
8119 | /* If PREV is NULL, return first version pattern matching particular symbol. |
8120 | If PREV is non-NULL, return first version pattern matching particular | |
8121 | symbol after PREV (previously returned by lang_vers_match). */ | |
252b5132 | 8122 | |
108ba305 JJ |
8123 | static struct bfd_elf_version_expr * |
8124 | lang_vers_match (struct bfd_elf_version_expr_head *head, | |
8125 | struct bfd_elf_version_expr *prev, | |
8126 | const char *sym) | |
252b5132 | 8127 | { |
93252b1c | 8128 | const char *c_sym; |
108ba305 JJ |
8129 | const char *cxx_sym = sym; |
8130 | const char *java_sym = sym; | |
8131 | struct bfd_elf_version_expr *expr = NULL; | |
93252b1c MF |
8132 | enum demangling_styles curr_style; |
8133 | ||
8134 | curr_style = CURRENT_DEMANGLING_STYLE; | |
8135 | cplus_demangle_set_style (no_demangling); | |
8136 | c_sym = bfd_demangle (link_info.output_bfd, sym, DMGL_NO_OPTS); | |
8137 | if (!c_sym) | |
8138 | c_sym = sym; | |
8139 | cplus_demangle_set_style (curr_style); | |
252b5132 | 8140 | |
108ba305 | 8141 | if (head->mask & BFD_ELF_VERSION_CXX_TYPE) |
252b5132 | 8142 | { |
93252b1c MF |
8143 | cxx_sym = bfd_demangle (link_info.output_bfd, sym, |
8144 | DMGL_PARAMS | DMGL_ANSI); | |
108ba305 JJ |
8145 | if (!cxx_sym) |
8146 | cxx_sym = sym; | |
252b5132 | 8147 | } |
df816215 | 8148 | if (head->mask & BFD_ELF_VERSION_JAVA_TYPE) |
252b5132 | 8149 | { |
93252b1c | 8150 | java_sym = bfd_demangle (link_info.output_bfd, sym, DMGL_JAVA); |
108ba305 JJ |
8151 | if (!java_sym) |
8152 | java_sym = sym; | |
252b5132 RH |
8153 | } |
8154 | ||
ae5a3597 | 8155 | if (head->htab && (prev == NULL || prev->literal)) |
252b5132 | 8156 | { |
108ba305 JJ |
8157 | struct bfd_elf_version_expr e; |
8158 | ||
8159 | switch (prev ? prev->mask : 0) | |
8160 | { | |
967928e9 AM |
8161 | case 0: |
8162 | if (head->mask & BFD_ELF_VERSION_C_TYPE) | |
8163 | { | |
93252b1c | 8164 | e.pattern = c_sym; |
1e9cc1c2 | 8165 | expr = (struct bfd_elf_version_expr *) |
4724d37e | 8166 | htab_find ((htab_t) head->htab, &e); |
93252b1c | 8167 | while (expr && strcmp (expr->pattern, c_sym) == 0) |
967928e9 AM |
8168 | if (expr->mask == BFD_ELF_VERSION_C_TYPE) |
8169 | goto out_ret; | |
8170 | else | |
8171 | expr = expr->next; | |
8172 | } | |
8173 | /* Fallthrough */ | |
8174 | case BFD_ELF_VERSION_C_TYPE: | |
8175 | if (head->mask & BFD_ELF_VERSION_CXX_TYPE) | |
8176 | { | |
ae5a3597 | 8177 | e.pattern = cxx_sym; |
1e9cc1c2 | 8178 | expr = (struct bfd_elf_version_expr *) |
4724d37e | 8179 | htab_find ((htab_t) head->htab, &e); |
ae5a3597 | 8180 | while (expr && strcmp (expr->pattern, cxx_sym) == 0) |
967928e9 AM |
8181 | if (expr->mask == BFD_ELF_VERSION_CXX_TYPE) |
8182 | goto out_ret; | |
8183 | else | |
8184 | expr = expr->next; | |
8185 | } | |
8186 | /* Fallthrough */ | |
8187 | case BFD_ELF_VERSION_CXX_TYPE: | |
8188 | if (head->mask & BFD_ELF_VERSION_JAVA_TYPE) | |
8189 | { | |
ae5a3597 | 8190 | e.pattern = java_sym; |
1e9cc1c2 | 8191 | expr = (struct bfd_elf_version_expr *) |
4724d37e | 8192 | htab_find ((htab_t) head->htab, &e); |
ae5a3597 | 8193 | while (expr && strcmp (expr->pattern, java_sym) == 0) |
967928e9 AM |
8194 | if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE) |
8195 | goto out_ret; | |
8196 | else | |
8197 | expr = expr->next; | |
8198 | } | |
8199 | /* Fallthrough */ | |
8200 | default: | |
8201 | break; | |
108ba305 | 8202 | } |
252b5132 | 8203 | } |
108ba305 JJ |
8204 | |
8205 | /* Finally, try the wildcards. */ | |
ae5a3597 | 8206 | if (prev == NULL || prev->literal) |
108ba305 | 8207 | expr = head->remaining; |
252b5132 | 8208 | else |
108ba305 | 8209 | expr = prev->next; |
86043bbb | 8210 | for (; expr; expr = expr->next) |
252b5132 | 8211 | { |
108ba305 JJ |
8212 | const char *s; |
8213 | ||
86043bbb MM |
8214 | if (!expr->pattern) |
8215 | continue; | |
8216 | ||
108ba305 JJ |
8217 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') |
8218 | break; | |
8219 | ||
8220 | if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE) | |
8221 | s = java_sym; | |
8222 | else if (expr->mask == BFD_ELF_VERSION_CXX_TYPE) | |
8223 | s = cxx_sym; | |
8224 | else | |
93252b1c | 8225 | s = c_sym; |
5e35cbc2 | 8226 | if (fnmatch (expr->pattern, s, 0) == 0) |
108ba305 | 8227 | break; |
252b5132 RH |
8228 | } |
8229 | ||
967928e9 | 8230 | out_ret: |
93252b1c MF |
8231 | if (c_sym != sym) |
8232 | free ((char *) c_sym); | |
108ba305 JJ |
8233 | if (cxx_sym != sym) |
8234 | free ((char *) cxx_sym); | |
8235 | if (java_sym != sym) | |
8236 | free ((char *) java_sym); | |
8237 | return expr; | |
252b5132 RH |
8238 | } |
8239 | ||
5e35cbc2 | 8240 | /* Return NULL if the PATTERN argument is a glob pattern, otherwise, |
ae5a3597 | 8241 | return a pointer to the symbol name with any backslash quotes removed. */ |
5e35cbc2 L |
8242 | |
8243 | static const char * | |
8244 | realsymbol (const char *pattern) | |
8245 | { | |
8246 | const char *p; | |
8247 | bfd_boolean changed = FALSE, backslash = FALSE; | |
1e9cc1c2 | 8248 | char *s, *symbol = (char *) xmalloc (strlen (pattern) + 1); |
5e35cbc2 L |
8249 | |
8250 | for (p = pattern, s = symbol; *p != '\0'; ++p) | |
8251 | { | |
8252 | /* It is a glob pattern only if there is no preceding | |
8253 | backslash. */ | |
5e35cbc2 L |
8254 | if (backslash) |
8255 | { | |
8256 | /* Remove the preceding backslash. */ | |
8257 | *(s - 1) = *p; | |
ae5a3597 | 8258 | backslash = FALSE; |
5e35cbc2 L |
8259 | changed = TRUE; |
8260 | } | |
8261 | else | |
ae5a3597 AM |
8262 | { |
8263 | if (*p == '?' || *p == '*' || *p == '[') | |
8264 | { | |
8265 | free (symbol); | |
8266 | return NULL; | |
8267 | } | |
5e35cbc2 | 8268 | |
ae5a3597 AM |
8269 | *s++ = *p; |
8270 | backslash = *p == '\\'; | |
8271 | } | |
5e35cbc2 L |
8272 | } |
8273 | ||
8274 | if (changed) | |
8275 | { | |
8276 | *s = '\0'; | |
8277 | return symbol; | |
8278 | } | |
8279 | else | |
8280 | { | |
8281 | free (symbol); | |
8282 | return pattern; | |
8283 | } | |
8284 | } | |
8285 | ||
d3ce72d0 | 8286 | /* This is called for each variable name or match expression. NEW_NAME is |
86043bbb MM |
8287 | the name of the symbol to match, or, if LITERAL_P is FALSE, a glob |
8288 | pattern to be matched against symbol names. */ | |
252b5132 RH |
8289 | |
8290 | struct bfd_elf_version_expr * | |
1579bae1 | 8291 | lang_new_vers_pattern (struct bfd_elf_version_expr *orig, |
d3ce72d0 | 8292 | const char *new_name, |
86043bbb MM |
8293 | const char *lang, |
8294 | bfd_boolean literal_p) | |
252b5132 RH |
8295 | { |
8296 | struct bfd_elf_version_expr *ret; | |
8297 | ||
d3ce72d0 | 8298 | ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret); |
252b5132 | 8299 | ret->next = orig; |
31941635 L |
8300 | ret->symver = 0; |
8301 | ret->script = 0; | |
ae5a3597 | 8302 | ret->literal = TRUE; |
d3ce72d0 | 8303 | ret->pattern = literal_p ? new_name : realsymbol (new_name); |
ae5a3597 AM |
8304 | if (ret->pattern == NULL) |
8305 | { | |
d3ce72d0 | 8306 | ret->pattern = new_name; |
ae5a3597 AM |
8307 | ret->literal = FALSE; |
8308 | } | |
252b5132 RH |
8309 | |
8310 | if (lang == NULL || strcasecmp (lang, "C") == 0) | |
108ba305 | 8311 | ret->mask = BFD_ELF_VERSION_C_TYPE; |
252b5132 | 8312 | else if (strcasecmp (lang, "C++") == 0) |
108ba305 | 8313 | ret->mask = BFD_ELF_VERSION_CXX_TYPE; |
252b5132 | 8314 | else if (strcasecmp (lang, "Java") == 0) |
108ba305 | 8315 | ret->mask = BFD_ELF_VERSION_JAVA_TYPE; |
252b5132 RH |
8316 | else |
8317 | { | |
8318 | einfo (_("%X%P: unknown language `%s' in version information\n"), | |
8319 | lang); | |
108ba305 | 8320 | ret->mask = BFD_ELF_VERSION_C_TYPE; |
252b5132 RH |
8321 | } |
8322 | ||
fac1652d | 8323 | return ldemul_new_vers_pattern (ret); |
252b5132 RH |
8324 | } |
8325 | ||
8326 | /* This is called for each set of variable names and match | |
8327 | expressions. */ | |
8328 | ||
8329 | struct bfd_elf_version_tree * | |
1579bae1 AM |
8330 | lang_new_vers_node (struct bfd_elf_version_expr *globals, |
8331 | struct bfd_elf_version_expr *locals) | |
252b5132 RH |
8332 | { |
8333 | struct bfd_elf_version_tree *ret; | |
8334 | ||
1e9cc1c2 | 8335 | ret = (struct bfd_elf_version_tree *) xcalloc (1, sizeof *ret); |
108ba305 JJ |
8336 | ret->globals.list = globals; |
8337 | ret->locals.list = locals; | |
8338 | ret->match = lang_vers_match; | |
252b5132 | 8339 | ret->name_indx = (unsigned int) -1; |
252b5132 RH |
8340 | return ret; |
8341 | } | |
8342 | ||
8343 | /* This static variable keeps track of version indices. */ | |
8344 | ||
8345 | static int version_index; | |
8346 | ||
108ba305 JJ |
8347 | static hashval_t |
8348 | version_expr_head_hash (const void *p) | |
8349 | { | |
1e9cc1c2 NC |
8350 | const struct bfd_elf_version_expr *e = |
8351 | (const struct bfd_elf_version_expr *) p; | |
108ba305 | 8352 | |
ae5a3597 | 8353 | return htab_hash_string (e->pattern); |
108ba305 JJ |
8354 | } |
8355 | ||
8356 | static int | |
8357 | version_expr_head_eq (const void *p1, const void *p2) | |
8358 | { | |
1e9cc1c2 NC |
8359 | const struct bfd_elf_version_expr *e1 = |
8360 | (const struct bfd_elf_version_expr *) p1; | |
8361 | const struct bfd_elf_version_expr *e2 = | |
8362 | (const struct bfd_elf_version_expr *) p2; | |
108ba305 | 8363 | |
ae5a3597 | 8364 | return strcmp (e1->pattern, e2->pattern) == 0; |
108ba305 JJ |
8365 | } |
8366 | ||
8367 | static void | |
8368 | lang_finalize_version_expr_head (struct bfd_elf_version_expr_head *head) | |
8369 | { | |
8370 | size_t count = 0; | |
8371 | struct bfd_elf_version_expr *e, *next; | |
8372 | struct bfd_elf_version_expr **list_loc, **remaining_loc; | |
8373 | ||
8374 | for (e = head->list; e; e = e->next) | |
8375 | { | |
ae5a3597 | 8376 | if (e->literal) |
108ba305 JJ |
8377 | count++; |
8378 | head->mask |= e->mask; | |
8379 | } | |
8380 | ||
8381 | if (count) | |
8382 | { | |
8383 | head->htab = htab_create (count * 2, version_expr_head_hash, | |
8384 | version_expr_head_eq, NULL); | |
8385 | list_loc = &head->list; | |
8386 | remaining_loc = &head->remaining; | |
8387 | for (e = head->list; e; e = next) | |
8388 | { | |
8389 | next = e->next; | |
ae5a3597 | 8390 | if (!e->literal) |
108ba305 JJ |
8391 | { |
8392 | *remaining_loc = e; | |
8393 | remaining_loc = &e->next; | |
8394 | } | |
8395 | else | |
8396 | { | |
1e9cc1c2 | 8397 | void **loc = htab_find_slot ((htab_t) head->htab, e, INSERT); |
108ba305 JJ |
8398 | |
8399 | if (*loc) | |
8400 | { | |
8401 | struct bfd_elf_version_expr *e1, *last; | |
8402 | ||
1e9cc1c2 | 8403 | e1 = (struct bfd_elf_version_expr *) *loc; |
108ba305 JJ |
8404 | last = NULL; |
8405 | do | |
8406 | { | |
8407 | if (e1->mask == e->mask) | |
8408 | { | |
8409 | last = NULL; | |
8410 | break; | |
8411 | } | |
8412 | last = e1; | |
8413 | e1 = e1->next; | |
8414 | } | |
ae5a3597 | 8415 | while (e1 && strcmp (e1->pattern, e->pattern) == 0); |
108ba305 JJ |
8416 | |
8417 | if (last == NULL) | |
8418 | { | |
8419 | /* This is a duplicate. */ | |
8420 | /* FIXME: Memory leak. Sometimes pattern is not | |
8421 | xmalloced alone, but in larger chunk of memory. */ | |
ae5a3597 | 8422 | /* free (e->pattern); */ |
108ba305 JJ |
8423 | free (e); |
8424 | } | |
8425 | else | |
8426 | { | |
8427 | e->next = last->next; | |
8428 | last->next = e; | |
8429 | } | |
8430 | } | |
8431 | else | |
8432 | { | |
8433 | *loc = e; | |
8434 | *list_loc = e; | |
8435 | list_loc = &e->next; | |
8436 | } | |
8437 | } | |
8438 | } | |
8439 | *remaining_loc = NULL; | |
8440 | *list_loc = head->remaining; | |
8441 | } | |
8442 | else | |
8443 | head->remaining = head->list; | |
8444 | } | |
8445 | ||
252b5132 RH |
8446 | /* This is called when we know the name and dependencies of the |
8447 | version. */ | |
8448 | ||
8449 | void | |
1579bae1 AM |
8450 | lang_register_vers_node (const char *name, |
8451 | struct bfd_elf_version_tree *version, | |
8452 | struct bfd_elf_version_deps *deps) | |
252b5132 RH |
8453 | { |
8454 | struct bfd_elf_version_tree *t, **pp; | |
8455 | struct bfd_elf_version_expr *e1; | |
8456 | ||
6b9b879a JJ |
8457 | if (name == NULL) |
8458 | name = ""; | |
8459 | ||
fd91d419 L |
8460 | if (link_info.version_info != NULL |
8461 | && (name[0] == '\0' || link_info.version_info->name[0] == '\0')) | |
6b9b879a | 8462 | { |
6feb9908 AM |
8463 | einfo (_("%X%P: anonymous version tag cannot be combined" |
8464 | " with other version tags\n")); | |
5ed6aba4 | 8465 | free (version); |
6b9b879a JJ |
8466 | return; |
8467 | } | |
8468 | ||
252b5132 | 8469 | /* Make sure this node has a unique name. */ |
fd91d419 | 8470 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
8471 | if (strcmp (t->name, name) == 0) |
8472 | einfo (_("%X%P: duplicate version tag `%s'\n"), name); | |
8473 | ||
108ba305 JJ |
8474 | lang_finalize_version_expr_head (&version->globals); |
8475 | lang_finalize_version_expr_head (&version->locals); | |
8476 | ||
252b5132 RH |
8477 | /* Check the global and local match names, and make sure there |
8478 | aren't any duplicates. */ | |
8479 | ||
108ba305 | 8480 | for (e1 = version->globals.list; e1 != NULL; e1 = e1->next) |
252b5132 | 8481 | { |
fd91d419 | 8482 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
8483 | { |
8484 | struct bfd_elf_version_expr *e2; | |
8485 | ||
ae5a3597 | 8486 | if (t->locals.htab && e1->literal) |
108ba305 | 8487 | { |
1e9cc1c2 | 8488 | e2 = (struct bfd_elf_version_expr *) |
4724d37e | 8489 | htab_find ((htab_t) t->locals.htab, e1); |
ae5a3597 | 8490 | while (e2 && strcmp (e1->pattern, e2->pattern) == 0) |
108ba305 JJ |
8491 | { |
8492 | if (e1->mask == e2->mask) | |
6feb9908 | 8493 | einfo (_("%X%P: duplicate expression `%s'" |
ae5a3597 | 8494 | " in version information\n"), e1->pattern); |
108ba305 JJ |
8495 | e2 = e2->next; |
8496 | } | |
8497 | } | |
ae5a3597 | 8498 | else if (!e1->literal) |
108ba305 | 8499 | for (e2 = t->locals.remaining; e2 != NULL; e2 = e2->next) |
6feb9908 AM |
8500 | if (strcmp (e1->pattern, e2->pattern) == 0 |
8501 | && e1->mask == e2->mask) | |
8502 | einfo (_("%X%P: duplicate expression `%s'" | |
8503 | " in version information\n"), e1->pattern); | |
252b5132 RH |
8504 | } |
8505 | } | |
8506 | ||
108ba305 | 8507 | for (e1 = version->locals.list; e1 != NULL; e1 = e1->next) |
252b5132 | 8508 | { |
fd91d419 | 8509 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
8510 | { |
8511 | struct bfd_elf_version_expr *e2; | |
8512 | ||
ae5a3597 | 8513 | if (t->globals.htab && e1->literal) |
108ba305 | 8514 | { |
1e9cc1c2 | 8515 | e2 = (struct bfd_elf_version_expr *) |
4724d37e | 8516 | htab_find ((htab_t) t->globals.htab, e1); |
ae5a3597 | 8517 | while (e2 && strcmp (e1->pattern, e2->pattern) == 0) |
108ba305 JJ |
8518 | { |
8519 | if (e1->mask == e2->mask) | |
6feb9908 AM |
8520 | einfo (_("%X%P: duplicate expression `%s'" |
8521 | " in version information\n"), | |
ae5a3597 | 8522 | e1->pattern); |
108ba305 JJ |
8523 | e2 = e2->next; |
8524 | } | |
8525 | } | |
ae5a3597 | 8526 | else if (!e1->literal) |
108ba305 | 8527 | for (e2 = t->globals.remaining; e2 != NULL; e2 = e2->next) |
6feb9908 AM |
8528 | if (strcmp (e1->pattern, e2->pattern) == 0 |
8529 | && e1->mask == e2->mask) | |
8530 | einfo (_("%X%P: duplicate expression `%s'" | |
8531 | " in version information\n"), e1->pattern); | |
252b5132 RH |
8532 | } |
8533 | } | |
8534 | ||
8535 | version->deps = deps; | |
8536 | version->name = name; | |
6b9b879a JJ |
8537 | if (name[0] != '\0') |
8538 | { | |
8539 | ++version_index; | |
8540 | version->vernum = version_index; | |
8541 | } | |
8542 | else | |
8543 | version->vernum = 0; | |
252b5132 | 8544 | |
fd91d419 | 8545 | for (pp = &link_info.version_info; *pp != NULL; pp = &(*pp)->next) |
252b5132 RH |
8546 | ; |
8547 | *pp = version; | |
8548 | } | |
8549 | ||
8550 | /* This is called when we see a version dependency. */ | |
8551 | ||
8552 | struct bfd_elf_version_deps * | |
1579bae1 | 8553 | lang_add_vers_depend (struct bfd_elf_version_deps *list, const char *name) |
252b5132 RH |
8554 | { |
8555 | struct bfd_elf_version_deps *ret; | |
8556 | struct bfd_elf_version_tree *t; | |
8557 | ||
1e9cc1c2 | 8558 | ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret); |
252b5132 RH |
8559 | ret->next = list; |
8560 | ||
fd91d419 | 8561 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
8562 | { |
8563 | if (strcmp (t->name, name) == 0) | |
8564 | { | |
8565 | ret->version_needed = t; | |
8566 | return ret; | |
8567 | } | |
8568 | } | |
8569 | ||
8570 | einfo (_("%X%P: unable to find version dependency `%s'\n"), name); | |
8571 | ||
1e0061d2 | 8572 | ret->version_needed = NULL; |
252b5132 RH |
8573 | return ret; |
8574 | } | |
8575 | ||
8576 | static void | |
1579bae1 | 8577 | lang_do_version_exports_section (void) |
252b5132 RH |
8578 | { |
8579 | struct bfd_elf_version_expr *greg = NULL, *lreg; | |
8580 | ||
8581 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
8582 | { | |
8583 | asection *sec = bfd_get_section_by_name (is->the_bfd, ".exports"); | |
8584 | char *contents, *p; | |
8585 | bfd_size_type len; | |
8586 | ||
8587 | if (sec == NULL) | |
b7a26f91 | 8588 | continue; |
252b5132 | 8589 | |
eea6121a | 8590 | len = sec->size; |
1e9cc1c2 | 8591 | contents = (char *) xmalloc (len); |
252b5132 | 8592 | if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len)) |
6f9efd97 | 8593 | einfo (_("%X%P: unable to read .exports section contents\n"), sec); |
252b5132 RH |
8594 | |
8595 | p = contents; | |
89cdebba | 8596 | while (p < contents + len) |
252b5132 | 8597 | { |
86043bbb | 8598 | greg = lang_new_vers_pattern (greg, p, NULL, FALSE); |
252b5132 RH |
8599 | p = strchr (p, '\0') + 1; |
8600 | } | |
8601 | ||
8602 | /* Do not free the contents, as we used them creating the regex. */ | |
8603 | ||
8604 | /* Do not include this section in the link. */ | |
a14a5de3 | 8605 | sec->flags |= SEC_EXCLUDE | SEC_KEEP; |
252b5132 RH |
8606 | } |
8607 | ||
86043bbb | 8608 | lreg = lang_new_vers_pattern (NULL, "*", NULL, FALSE); |
252b5132 RH |
8609 | lang_register_vers_node (command_line.version_exports_section, |
8610 | lang_new_vers_node (greg, lreg), NULL); | |
8611 | } | |
577a0623 | 8612 | |
cc9ad334 SKS |
8613 | /* Evaluate LENGTH and ORIGIN parts of MEMORY spec */ |
8614 | ||
8615 | static void | |
8616 | lang_do_memory_regions (void) | |
8617 | { | |
8618 | lang_memory_region_type *r = lang_memory_region_list; | |
8619 | ||
8620 | for (; r != NULL; r = r->next) | |
8621 | { | |
8622 | if (r->origin_exp) | |
0aa7f586 AM |
8623 | { |
8624 | exp_fold_tree_no_dot (r->origin_exp); | |
8625 | if (expld.result.valid_p) | |
8626 | { | |
8627 | r->origin = expld.result.value; | |
8628 | r->current = r->origin; | |
8629 | } | |
8630 | else | |
8631 | einfo (_("%F%P: invalid origin for memory region %s\n"), | |
8632 | r->name_list.name); | |
8633 | } | |
cc9ad334 | 8634 | if (r->length_exp) |
0aa7f586 AM |
8635 | { |
8636 | exp_fold_tree_no_dot (r->length_exp); | |
8637 | if (expld.result.valid_p) | |
8638 | r->length = expld.result.value; | |
8639 | else | |
8640 | einfo (_("%F%P: invalid length for memory region %s\n"), | |
8641 | r->name_list.name); | |
8642 | } | |
cc9ad334 SKS |
8643 | } |
8644 | } | |
8645 | ||
577a0623 | 8646 | void |
1579bae1 | 8647 | lang_add_unique (const char *name) |
577a0623 AM |
8648 | { |
8649 | struct unique_sections *ent; | |
8650 | ||
8651 | for (ent = unique_section_list; ent; ent = ent->next) | |
8652 | if (strcmp (ent->name, name) == 0) | |
8653 | return; | |
8654 | ||
1e9cc1c2 | 8655 | ent = (struct unique_sections *) xmalloc (sizeof *ent); |
577a0623 AM |
8656 | ent->name = xstrdup (name); |
8657 | ent->next = unique_section_list; | |
8658 | unique_section_list = ent; | |
8659 | } | |
55255dae L |
8660 | |
8661 | /* Append the list of dynamic symbols to the existing one. */ | |
8662 | ||
8663 | void | |
8664 | lang_append_dynamic_list (struct bfd_elf_version_expr *dynamic) | |
8665 | { | |
40b36307 | 8666 | if (link_info.dynamic_list) |
55255dae | 8667 | { |
07806542 JJ |
8668 | struct bfd_elf_version_expr *tail; |
8669 | for (tail = dynamic; tail->next != NULL; tail = tail->next) | |
8670 | ; | |
40b36307 L |
8671 | tail->next = link_info.dynamic_list->head.list; |
8672 | link_info.dynamic_list->head.list = dynamic; | |
55255dae L |
8673 | } |
8674 | else | |
8675 | { | |
8676 | struct bfd_elf_dynamic_list *d; | |
8677 | ||
1e9cc1c2 | 8678 | d = (struct bfd_elf_dynamic_list *) xcalloc (1, sizeof *d); |
55255dae L |
8679 | d->head.list = dynamic; |
8680 | d->match = lang_vers_match; | |
40b36307 | 8681 | link_info.dynamic_list = d; |
55255dae L |
8682 | } |
8683 | } | |
8684 | ||
8685 | /* Append the list of C++ typeinfo dynamic symbols to the existing | |
8686 | one. */ | |
8687 | ||
8688 | void | |
8689 | lang_append_dynamic_list_cpp_typeinfo (void) | |
8690 | { | |
0aa7f586 | 8691 | const char *symbols[] = |
55255dae L |
8692 | { |
8693 | "typeinfo name for*", | |
8694 | "typeinfo for*" | |
8695 | }; | |
8696 | struct bfd_elf_version_expr *dynamic = NULL; | |
8697 | unsigned int i; | |
8698 | ||
8699 | for (i = 0; i < ARRAY_SIZE (symbols); i++) | |
8700 | dynamic = lang_new_vers_pattern (dynamic, symbols [i], "C++", | |
8701 | FALSE); | |
8702 | ||
8703 | lang_append_dynamic_list (dynamic); | |
8704 | } | |
40b36307 L |
8705 | |
8706 | /* Append the list of C++ operator new and delete dynamic symbols to the | |
8707 | existing one. */ | |
8708 | ||
8709 | void | |
8710 | lang_append_dynamic_list_cpp_new (void) | |
8711 | { | |
0aa7f586 | 8712 | const char *symbols[] = |
40b36307 L |
8713 | { |
8714 | "operator new*", | |
8715 | "operator delete*" | |
8716 | }; | |
8717 | struct bfd_elf_version_expr *dynamic = NULL; | |
8718 | unsigned int i; | |
8719 | ||
8720 | for (i = 0; i < ARRAY_SIZE (symbols); i++) | |
8721 | dynamic = lang_new_vers_pattern (dynamic, symbols [i], "C++", | |
8722 | FALSE); | |
8723 | ||
8724 | lang_append_dynamic_list (dynamic); | |
8725 | } | |
01554a74 AM |
8726 | |
8727 | /* Scan a space and/or comma separated string of features. */ | |
8728 | ||
8729 | void | |
8730 | lang_ld_feature (char *str) | |
8731 | { | |
8732 | char *p, *q; | |
8733 | ||
8734 | p = str; | |
8735 | while (*p) | |
8736 | { | |
8737 | char sep; | |
8738 | while (*p == ',' || ISSPACE (*p)) | |
8739 | ++p; | |
8740 | if (!*p) | |
8741 | break; | |
8742 | q = p + 1; | |
8743 | while (*q && *q != ',' && !ISSPACE (*q)) | |
8744 | ++q; | |
8745 | sep = *q; | |
8746 | *q = 0; | |
8747 | if (strcasecmp (p, "SANE_EXPR") == 0) | |
8748 | config.sane_expr = TRUE; | |
8749 | else | |
8750 | einfo (_("%X%P: unknown feature `%s'\n"), p); | |
8751 | *q = sep; | |
8752 | p = q; | |
8753 | } | |
8754 | } | |
3604cb1f TG |
8755 | |
8756 | /* Pretty print memory amount. */ | |
8757 | ||
8758 | static void | |
8759 | lang_print_memory_size (bfd_vma sz) | |
8760 | { | |
8761 | if ((sz & 0x3fffffff) == 0) | |
8762 | printf ("%10" BFD_VMA_FMT "u GB", sz >> 30); | |
8763 | else if ((sz & 0xfffff) == 0) | |
8764 | printf ("%10" BFD_VMA_FMT "u MB", sz >> 20); | |
8765 | else if ((sz & 0x3ff) == 0) | |
8766 | printf ("%10" BFD_VMA_FMT "u KB", sz >> 10); | |
8767 | else | |
8768 | printf (" %10" BFD_VMA_FMT "u B", sz); | |
8769 | } | |
8770 | ||
8771 | /* Implement --print-memory-usage: disply per region memory usage. */ | |
8772 | ||
8773 | void | |
8774 | lang_print_memory_usage (void) | |
8775 | { | |
8776 | lang_memory_region_type *r; | |
8777 | ||
8778 | printf ("Memory region Used Size Region Size %%age Used\n"); | |
8779 | for (r = lang_memory_region_list; r->next != NULL; r = r->next) | |
8780 | { | |
8781 | bfd_vma used_length = r->current - r->origin; | |
8782 | double percent; | |
8783 | ||
8784 | printf ("%16s: ",r->name_list.name); | |
8785 | lang_print_memory_size (used_length); | |
8786 | lang_print_memory_size ((bfd_vma) r->length); | |
8787 | ||
8788 | percent = used_length * 100.0 / r->length; | |
8789 | ||
8790 | printf (" %6.2f%%\n", percent); | |
8791 | } | |
8792 | } |