Commit | Line | Data |
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252b5132 | 1 | /* Linker command language support. |
6f2750fe | 2 | Copyright (C) 1991-2016 Free Software Foundation, Inc. |
252b5132 | 3 | |
f96b4a7b | 4 | This file is part of the GNU Binutils. |
252b5132 | 5 | |
f96b4a7b | 6 | This program is free software; you can redistribute it and/or modify |
53b2a62f | 7 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
8 | the Free Software Foundation; either version 3 of the License, or |
9 | (at your option) any later version. | |
252b5132 | 10 | |
f96b4a7b | 11 | This program is distributed in the hope that it will be useful, |
53b2a62f NC |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
252b5132 | 15 | |
53b2a62f | 16 | You should have received a copy of the GNU General Public License |
f96b4a7b NC |
17 | along with this program; if not, write to the Free Software |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
252b5132 | 20 | |
252b5132 | 21 | #include "sysdep.h" |
3db64b00 | 22 | #include "bfd.h" |
252b5132 | 23 | #include "libiberty.h" |
42627821 | 24 | #include "filenames.h" |
3882b010 | 25 | #include "safe-ctype.h" |
252b5132 RH |
26 | #include "obstack.h" |
27 | #include "bfdlink.h" | |
28 | ||
29 | #include "ld.h" | |
30 | #include "ldmain.h" | |
252b5132 RH |
31 | #include "ldexp.h" |
32 | #include "ldlang.h" | |
df2a7313 | 33 | #include <ldgram.h> |
252b5132 RH |
34 | #include "ldlex.h" |
35 | #include "ldmisc.h" | |
36 | #include "ldctor.h" | |
37 | #include "ldfile.h" | |
b71e2778 | 38 | #include "ldemul.h" |
252b5132 RH |
39 | #include "fnmatch.h" |
40 | #include "demangle.h" | |
108ba305 | 41 | #include "hashtab.h" |
5d3236ee | 42 | #include "libbfd.h" |
0fef4b98 | 43 | #include "elf-bfd.h" |
5d3236ee DK |
44 | #ifdef ENABLE_PLUGINS |
45 | #include "plugin.h" | |
46 | #endif /* ENABLE_PLUGINS */ | |
252b5132 | 47 | |
7abb6dea | 48 | #ifndef offsetof |
cf888e70 | 49 | #define offsetof(TYPE, MEMBER) ((size_t) & (((TYPE*) 0)->MEMBER)) |
7abb6dea AM |
50 | #endif |
51 | ||
fc90c280 AM |
52 | /* Convert between addresses in bytes and sizes in octets. |
53 | For currently supported targets, octets_per_byte is always a power | |
54 | of two, so we can use shifts. */ | |
55 | #define TO_ADDR(X) ((X) >> opb_shift) | |
56 | #define TO_SIZE(X) ((X) << opb_shift) | |
57 | ||
58 | /* Local variables. */ | |
252b5132 | 59 | static struct obstack stat_obstack; |
35835446 | 60 | static struct obstack map_obstack; |
252b5132 RH |
61 | |
62 | #define obstack_chunk_alloc xmalloc | |
63 | #define obstack_chunk_free free | |
8be573a7 | 64 | static const char *entry_symbol_default = "start"; |
b34976b6 | 65 | static bfd_boolean placed_commons = FALSE; |
18cd5bce | 66 | static bfd_boolean map_head_is_link_order = FALSE; |
252b5132 | 67 | static lang_output_section_statement_type *default_common_section; |
b34976b6 | 68 | static bfd_boolean map_option_f; |
252b5132 RH |
69 | static bfd_vma print_dot; |
70 | static lang_input_statement_type *first_file; | |
5f992e62 | 71 | static const char *current_target; |
252b5132 | 72 | static lang_statement_list_type statement_list; |
bde18da4 AM |
73 | static lang_statement_list_type *stat_save[10]; |
74 | static lang_statement_list_type **stat_save_ptr = &stat_save[0]; | |
c4b78195 | 75 | static struct unique_sections *unique_section_list; |
16e4ecc0 | 76 | static struct asneeded_minfo *asneeded_list_head; |
fc90c280 | 77 | static unsigned int opb_shift = 0; |
a87dd97a | 78 | static bfd_boolean maybe_overlays = FALSE; |
252b5132 | 79 | |
cf888e70 | 80 | /* Forward declarations. */ |
a431bc2e | 81 | static void exp_init_os (etree_type *); |
1579bae1 | 82 | static lang_input_statement_type *lookup_name (const char *); |
1579bae1 | 83 | static void insert_undefined (const char *); |
35835446 | 84 | static bfd_boolean sort_def_symbol (struct bfd_link_hash_entry *, void *); |
1579bae1 AM |
85 | static void print_statement (lang_statement_union_type *, |
86 | lang_output_section_statement_type *); | |
87 | static void print_statement_list (lang_statement_union_type *, | |
88 | lang_output_section_statement_type *); | |
89 | static void print_statements (void); | |
d64703c6 | 90 | static void print_input_section (asection *, bfd_boolean); |
1579bae1 AM |
91 | static bfd_boolean lang_one_common (struct bfd_link_hash_entry *, void *); |
92 | static void lang_record_phdrs (void); | |
93 | static void lang_do_version_exports_section (void); | |
55255dae L |
94 | static void lang_finalize_version_expr_head |
95 | (struct bfd_elf_version_expr_head *); | |
cc9ad334 | 96 | static void lang_do_memory_regions (void); |
1579bae1 | 97 | |
cf888e70 | 98 | /* Exported variables. */ |
8be573a7 | 99 | const char *output_target; |
252b5132 | 100 | lang_output_section_statement_type *abs_output_section; |
aea4bd9d | 101 | lang_statement_list_type lang_output_section_statement; |
252b5132 | 102 | lang_statement_list_type *stat_ptr = &statement_list; |
87f2a346 | 103 | lang_statement_list_type file_chain = { NULL, NULL }; |
dc27aea4 | 104 | lang_statement_list_type input_file_chain; |
e3e942e9 | 105 | struct bfd_sym_chain entry_symbol = { NULL, NULL }; |
1e281515 | 106 | const char *entry_section = ".text"; |
66be1055 | 107 | struct lang_input_statement_flags input_flags; |
b34976b6 | 108 | bfd_boolean entry_from_cmdline; |
24898b70 | 109 | bfd_boolean undef_from_cmdline; |
b34976b6 AM |
110 | bfd_boolean lang_has_input_file = FALSE; |
111 | bfd_boolean had_output_filename = FALSE; | |
112 | bfd_boolean lang_float_flag = FALSE; | |
113 | bfd_boolean delete_output_file_on_failure = FALSE; | |
f5ff60a6 | 114 | struct lang_phdr *lang_phdr_list; |
252b5132 | 115 | struct lang_nocrossrefs *nocrossref_list; |
16e4ecc0 | 116 | struct asneeded_minfo **asneeded_list_tail; |
e9ee469a AM |
117 | |
118 | /* Functions that traverse the linker script and might evaluate | |
fa72205c | 119 | DEFINED() need to increment this at the start of the traversal. */ |
420e579c | 120 | int lang_statement_iteration = 0; |
252b5132 | 121 | |
61f5d054 L |
122 | /* Return TRUE if the PATTERN argument is a wildcard pattern. |
123 | Although backslashes are treated specially if a pattern contains | |
124 | wildcards, we do not consider the mere presence of a backslash to | |
125 | be enough to cause the pattern to be treated as a wildcard. | |
126 | That lets us handle DOS filenames more naturally. */ | |
127 | #define wildcardp(pattern) (strpbrk ((pattern), "?*[") != NULL) | |
128 | ||
d1778b88 | 129 | #define new_stat(x, y) \ |
1579bae1 | 130 | (x##_type *) new_statement (x##_enum, sizeof (x##_type), y) |
252b5132 | 131 | |
d1778b88 AM |
132 | #define outside_section_address(q) \ |
133 | ((q)->output_offset + (q)->output_section->vma) | |
252b5132 | 134 | |
d1778b88 AM |
135 | #define outside_symbol_address(q) \ |
136 | ((q)->value + outside_section_address (q->section)) | |
252b5132 RH |
137 | |
138 | #define SECTION_NAME_MAP_LENGTH (16) | |
139 | ||
1579bae1 AM |
140 | void * |
141 | stat_alloc (size_t size) | |
252b5132 RH |
142 | { |
143 | return obstack_alloc (&stat_obstack, size); | |
144 | } | |
145 | ||
97407faf AM |
146 | static int |
147 | name_match (const char *pattern, const char *name) | |
148 | { | |
149 | if (wildcardp (pattern)) | |
150 | return fnmatch (pattern, name, 0); | |
151 | return strcmp (pattern, name); | |
152 | } | |
153 | ||
154 | /* If PATTERN is of the form archive:file, return a pointer to the | |
155 | separator. If not, return NULL. */ | |
156 | ||
157 | static char * | |
158 | archive_path (const char *pattern) | |
159 | { | |
160 | char *p = NULL; | |
161 | ||
162 | if (link_info.path_separator == 0) | |
163 | return p; | |
164 | ||
165 | p = strchr (pattern, link_info.path_separator); | |
166 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
167 | if (p == NULL || link_info.path_separator != ':') | |
168 | return p; | |
169 | ||
170 | /* Assume a match on the second char is part of drive specifier, | |
171 | as in "c:\silly.dos". */ | |
967928e9 | 172 | if (p == pattern + 1 && ISALPHA (*pattern)) |
97407faf AM |
173 | p = strchr (p + 1, link_info.path_separator); |
174 | #endif | |
175 | return p; | |
176 | } | |
177 | ||
967928e9 AM |
178 | /* Given that FILE_SPEC results in a non-NULL SEP result from archive_path, |
179 | return whether F matches FILE_SPEC. */ | |
180 | ||
181 | static bfd_boolean | |
182 | input_statement_is_archive_path (const char *file_spec, char *sep, | |
183 | lang_input_statement_type *f) | |
184 | { | |
185 | bfd_boolean match = FALSE; | |
186 | ||
187 | if ((*(sep + 1) == 0 | |
188 | || name_match (sep + 1, f->filename) == 0) | |
189 | && ((sep != file_spec) | |
190 | == (f->the_bfd != NULL && f->the_bfd->my_archive != NULL))) | |
191 | { | |
192 | match = TRUE; | |
193 | ||
194 | if (sep != file_spec) | |
195 | { | |
196 | const char *aname = f->the_bfd->my_archive->filename; | |
197 | *sep = 0; | |
198 | match = name_match (file_spec, aname) == 0; | |
199 | *sep = link_info.path_separator; | |
200 | } | |
201 | } | |
202 | return match; | |
203 | } | |
204 | ||
8a99a385 | 205 | static bfd_boolean |
d0bf826b AM |
206 | unique_section_p (const asection *sec, |
207 | const lang_output_section_statement_type *os) | |
577a0623 AM |
208 | { |
209 | struct unique_sections *unam; | |
d0d6a25b | 210 | const char *secnam; |
577a0623 | 211 | |
0e1862bb | 212 | if (bfd_link_relocatable (&link_info) |
d0d6a25b AM |
213 | && sec->owner != NULL |
214 | && bfd_is_group_section (sec->owner, sec)) | |
d0bf826b AM |
215 | return !(os != NULL |
216 | && strcmp (os->name, DISCARD_SECTION_NAME) == 0); | |
d0d6a25b AM |
217 | |
218 | secnam = sec->name; | |
577a0623 | 219 | for (unam = unique_section_list; unam; unam = unam->next) |
97407faf AM |
220 | if (name_match (unam->name, secnam) == 0) |
221 | return TRUE; | |
577a0623 | 222 | |
b34976b6 | 223 | return FALSE; |
577a0623 AM |
224 | } |
225 | ||
08da4cac | 226 | /* Generic traversal routines for finding matching sections. */ |
4dec4d4e | 227 | |
72223188 JJ |
228 | /* Try processing a section against a wildcard. This just calls |
229 | the callback unless the filename exclusion list is present | |
230 | and excludes the file. It's hardly ever present so this | |
231 | function is very fast. */ | |
232 | ||
4dec4d4e | 233 | static void |
72223188 JJ |
234 | walk_wild_consider_section (lang_wild_statement_type *ptr, |
235 | lang_input_statement_type *file, | |
236 | asection *s, | |
237 | struct wildcard_list *sec, | |
238 | callback_t callback, | |
239 | void *data) | |
4dec4d4e | 240 | { |
72223188 JJ |
241 | struct name_list *list_tmp; |
242 | ||
97407faf | 243 | /* Don't process sections from files which were excluded. */ |
72223188 JJ |
244 | for (list_tmp = sec->spec.exclude_name_list; |
245 | list_tmp; | |
246 | list_tmp = list_tmp->next) | |
247 | { | |
967928e9 | 248 | char *p = archive_path (list_tmp->name); |
b6bf44ba | 249 | |
967928e9 | 250 | if (p != NULL) |
72223188 | 251 | { |
967928e9 AM |
252 | if (input_statement_is_archive_path (list_tmp->name, p, file)) |
253 | return; | |
72223188 JJ |
254 | } |
255 | ||
967928e9 AM |
256 | else if (name_match (list_tmp->name, file->filename) == 0) |
257 | return; | |
258 | ||
259 | /* FIXME: Perhaps remove the following at some stage? Matching | |
260 | unadorned archives like this was never documented and has | |
261 | been superceded by the archive:path syntax. */ | |
262 | else if (file->the_bfd != NULL | |
263 | && file->the_bfd->my_archive != NULL | |
264 | && name_match (list_tmp->name, | |
265 | file->the_bfd->my_archive->filename) == 0) | |
266 | return; | |
72223188 JJ |
267 | } |
268 | ||
b9c361e0 | 269 | (*callback) (ptr, sec, s, ptr->section_flag_list, file, data); |
72223188 JJ |
270 | } |
271 | ||
272 | /* Lowest common denominator routine that can handle everything correctly, | |
273 | but slowly. */ | |
274 | ||
275 | static void | |
276 | walk_wild_section_general (lang_wild_statement_type *ptr, | |
277 | lang_input_statement_type *file, | |
278 | callback_t callback, | |
279 | void *data) | |
280 | { | |
281 | asection *s; | |
282 | struct wildcard_list *sec; | |
b6bf44ba AM |
283 | |
284 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
4dec4d4e | 285 | { |
b6bf44ba | 286 | sec = ptr->section_list; |
2181f54f | 287 | if (sec == NULL) |
b9c361e0 | 288 | (*callback) (ptr, sec, s, ptr->section_flag_list, file, data); |
2181f54f AM |
289 | |
290 | while (sec != NULL) | |
08da4cac | 291 | { |
b34976b6 | 292 | bfd_boolean skip = FALSE; |
2181f54f | 293 | |
72223188 | 294 | if (sec->spec.name != NULL) |
b6bf44ba | 295 | { |
2181f54f AM |
296 | const char *sname = bfd_get_section_name (file->the_bfd, s); |
297 | ||
97407faf | 298 | skip = name_match (sec->spec.name, sname) != 0; |
b6bf44ba | 299 | } |
4dec4d4e | 300 | |
b6bf44ba | 301 | if (!skip) |
72223188 | 302 | walk_wild_consider_section (ptr, file, s, sec, callback, data); |
4dec4d4e | 303 | |
2181f54f | 304 | sec = sec->next; |
4dec4d4e RH |
305 | } |
306 | } | |
307 | } | |
308 | ||
72223188 JJ |
309 | /* Routines to find a single section given its name. If there's more |
310 | than one section with that name, we report that. */ | |
311 | ||
312 | typedef struct | |
313 | { | |
314 | asection *found_section; | |
315 | bfd_boolean multiple_sections_found; | |
316 | } section_iterator_callback_data; | |
317 | ||
318 | static bfd_boolean | |
91d6fa6a | 319 | section_iterator_callback (bfd *abfd ATTRIBUTE_UNUSED, asection *s, void *data) |
72223188 | 320 | { |
1e9cc1c2 | 321 | section_iterator_callback_data *d = (section_iterator_callback_data *) data; |
72223188 JJ |
322 | |
323 | if (d->found_section != NULL) | |
324 | { | |
325 | d->multiple_sections_found = TRUE; | |
326 | return TRUE; | |
327 | } | |
328 | ||
329 | d->found_section = s; | |
330 | return FALSE; | |
331 | } | |
332 | ||
333 | static asection * | |
334 | find_section (lang_input_statement_type *file, | |
335 | struct wildcard_list *sec, | |
336 | bfd_boolean *multiple_sections_found) | |
337 | { | |
338 | section_iterator_callback_data cb_data = { NULL, FALSE }; | |
339 | ||
329c1c86 | 340 | bfd_get_section_by_name_if (file->the_bfd, sec->spec.name, |
72223188 JJ |
341 | section_iterator_callback, &cb_data); |
342 | *multiple_sections_found = cb_data.multiple_sections_found; | |
343 | return cb_data.found_section; | |
344 | } | |
345 | ||
346 | /* Code for handling simple wildcards without going through fnmatch, | |
347 | which can be expensive because of charset translations etc. */ | |
348 | ||
349 | /* A simple wild is a literal string followed by a single '*', | |
350 | where the literal part is at least 4 characters long. */ | |
351 | ||
352 | static bfd_boolean | |
353 | is_simple_wild (const char *name) | |
354 | { | |
355 | size_t len = strcspn (name, "*?["); | |
356 | return len >= 4 && name[len] == '*' && name[len + 1] == '\0'; | |
357 | } | |
358 | ||
359 | static bfd_boolean | |
360 | match_simple_wild (const char *pattern, const char *name) | |
361 | { | |
362 | /* The first four characters of the pattern are guaranteed valid | |
363 | non-wildcard characters. So we can go faster. */ | |
364 | if (pattern[0] != name[0] || pattern[1] != name[1] | |
365 | || pattern[2] != name[2] || pattern[3] != name[3]) | |
366 | return FALSE; | |
367 | ||
368 | pattern += 4; | |
369 | name += 4; | |
370 | while (*pattern != '*') | |
371 | if (*name++ != *pattern++) | |
372 | return FALSE; | |
373 | ||
374 | return TRUE; | |
375 | } | |
376 | ||
02ecc8e9 L |
377 | /* Return the numerical value of the init_priority attribute from |
378 | section name NAME. */ | |
379 | ||
380 | static unsigned long | |
381 | get_init_priority (const char *name) | |
382 | { | |
383 | char *end; | |
384 | unsigned long init_priority; | |
385 | ||
386 | /* GCC uses the following section names for the init_priority | |
387 | attribute with numerical values 101 and 65535 inclusive. A | |
388 | lower value means a higher priority. | |
389 | ||
390 | 1: .init_array.NNNN/.fini_array.NNNN: Where NNNN is the | |
391 | decimal numerical value of the init_priority attribute. | |
392 | The order of execution in .init_array is forward and | |
393 | .fini_array is backward. | |
61087d8c | 394 | 2: .ctors.NNNN/.dtors.NNNN: Where NNNN is 65535 minus the |
02ecc8e9 L |
395 | decimal numerical value of the init_priority attribute. |
396 | The order of execution in .ctors is backward and .dtors | |
397 | is forward. | |
398 | */ | |
399 | if (strncmp (name, ".init_array.", 12) == 0 | |
400 | || strncmp (name, ".fini_array.", 12) == 0) | |
401 | { | |
402 | init_priority = strtoul (name + 12, &end, 10); | |
403 | return *end ? 0 : init_priority; | |
404 | } | |
405 | else if (strncmp (name, ".ctors.", 7) == 0 | |
406 | || strncmp (name, ".dtors.", 7) == 0) | |
407 | { | |
408 | init_priority = strtoul (name + 7, &end, 10); | |
409 | return *end ? 0 : 65535 - init_priority; | |
410 | } | |
411 | ||
412 | return 0; | |
413 | } | |
414 | ||
50c77e5d NC |
415 | /* Compare sections ASEC and BSEC according to SORT. */ |
416 | ||
417 | static int | |
418 | compare_section (sort_type sort, asection *asec, asection *bsec) | |
419 | { | |
420 | int ret; | |
02ecc8e9 | 421 | unsigned long ainit_priority, binit_priority; |
50c77e5d NC |
422 | |
423 | switch (sort) | |
424 | { | |
425 | default: | |
426 | abort (); | |
427 | ||
02ecc8e9 L |
428 | case by_init_priority: |
429 | ainit_priority | |
430 | = get_init_priority (bfd_get_section_name (asec->owner, asec)); | |
431 | binit_priority | |
432 | = get_init_priority (bfd_get_section_name (bsec->owner, bsec)); | |
433 | if (ainit_priority == 0 || binit_priority == 0) | |
434 | goto sort_by_name; | |
435 | ret = ainit_priority - binit_priority; | |
436 | if (ret) | |
437 | break; | |
438 | else | |
439 | goto sort_by_name; | |
440 | ||
50c77e5d NC |
441 | case by_alignment_name: |
442 | ret = (bfd_section_alignment (bsec->owner, bsec) | |
443 | - bfd_section_alignment (asec->owner, asec)); | |
444 | if (ret) | |
445 | break; | |
446 | /* Fall through. */ | |
447 | ||
448 | case by_name: | |
02ecc8e9 | 449 | sort_by_name: |
50c77e5d NC |
450 | ret = strcmp (bfd_get_section_name (asec->owner, asec), |
451 | bfd_get_section_name (bsec->owner, bsec)); | |
452 | break; | |
453 | ||
454 | case by_name_alignment: | |
455 | ret = strcmp (bfd_get_section_name (asec->owner, asec), | |
456 | bfd_get_section_name (bsec->owner, bsec)); | |
457 | if (ret) | |
458 | break; | |
459 | /* Fall through. */ | |
460 | ||
461 | case by_alignment: | |
462 | ret = (bfd_section_alignment (bsec->owner, bsec) | |
463 | - bfd_section_alignment (asec->owner, asec)); | |
464 | break; | |
465 | } | |
466 | ||
467 | return ret; | |
468 | } | |
469 | ||
329c1c86 | 470 | /* Build a Binary Search Tree to sort sections, unlike insertion sort |
50c77e5d NC |
471 | used in wild_sort(). BST is considerably faster if the number of |
472 | of sections are large. */ | |
473 | ||
474 | static lang_section_bst_type ** | |
475 | wild_sort_fast (lang_wild_statement_type *wild, | |
329c1c86 AM |
476 | struct wildcard_list *sec, |
477 | lang_input_statement_type *file ATTRIBUTE_UNUSED, | |
478 | asection *section) | |
50c77e5d | 479 | { |
329c1c86 | 480 | lang_section_bst_type **tree; |
50c77e5d | 481 | |
e6f2cbf5 | 482 | tree = &wild->tree; |
50c77e5d | 483 | if (!wild->filenames_sorted |
329c1c86 | 484 | && (sec == NULL || sec->spec.sorted == none)) |
50c77e5d NC |
485 | { |
486 | /* Append at the right end of tree. */ | |
487 | while (*tree) | |
329c1c86 | 488 | tree = &((*tree)->right); |
50c77e5d NC |
489 | return tree; |
490 | } | |
491 | ||
329c1c86 | 492 | while (*tree) |
50c77e5d NC |
493 | { |
494 | /* Find the correct node to append this section. */ | |
329c1c86 AM |
495 | if (compare_section (sec->spec.sorted, section, (*tree)->section) < 0) |
496 | tree = &((*tree)->left); | |
497 | else | |
498 | tree = &((*tree)->right); | |
50c77e5d NC |
499 | } |
500 | ||
501 | return tree; | |
502 | } | |
503 | ||
504 | /* Use wild_sort_fast to build a BST to sort sections. */ | |
505 | ||
506 | static void | |
507 | output_section_callback_fast (lang_wild_statement_type *ptr, | |
329c1c86 AM |
508 | struct wildcard_list *sec, |
509 | asection *section, | |
b9c361e0 | 510 | struct flag_info *sflag_list ATTRIBUTE_UNUSED, |
329c1c86 | 511 | lang_input_statement_type *file, |
d0bf826b | 512 | void *output) |
50c77e5d NC |
513 | { |
514 | lang_section_bst_type *node; | |
515 | lang_section_bst_type **tree; | |
d0bf826b | 516 | lang_output_section_statement_type *os; |
50c77e5d | 517 | |
d0bf826b AM |
518 | os = (lang_output_section_statement_type *) output; |
519 | ||
520 | if (unique_section_p (section, os)) | |
50c77e5d NC |
521 | return; |
522 | ||
1e9cc1c2 | 523 | node = (lang_section_bst_type *) xmalloc (sizeof (lang_section_bst_type)); |
50c77e5d NC |
524 | node->left = 0; |
525 | node->right = 0; | |
526 | node->section = section; | |
527 | ||
528 | tree = wild_sort_fast (ptr, sec, file, section); | |
529 | if (tree != NULL) | |
530 | *tree = node; | |
531 | } | |
532 | ||
533 | /* Convert a sorted sections' BST back to list form. */ | |
534 | ||
535 | static void | |
329c1c86 AM |
536 | output_section_callback_tree_to_list (lang_wild_statement_type *ptr, |
537 | lang_section_bst_type *tree, | |
538 | void *output) | |
50c77e5d NC |
539 | { |
540 | if (tree->left) | |
541 | output_section_callback_tree_to_list (ptr, tree->left, output); | |
542 | ||
b9c361e0 | 543 | lang_add_section (&ptr->children, tree->section, NULL, |
329c1c86 | 544 | (lang_output_section_statement_type *) output); |
50c77e5d NC |
545 | |
546 | if (tree->right) | |
547 | output_section_callback_tree_to_list (ptr, tree->right, output); | |
548 | ||
549 | free (tree); | |
550 | } | |
551 | ||
72223188 JJ |
552 | /* Specialized, optimized routines for handling different kinds of |
553 | wildcards */ | |
554 | ||
555 | static void | |
556 | walk_wild_section_specs1_wild0 (lang_wild_statement_type *ptr, | |
557 | lang_input_statement_type *file, | |
558 | callback_t callback, | |
559 | void *data) | |
560 | { | |
561 | /* We can just do a hash lookup for the section with the right name. | |
562 | But if that lookup discovers more than one section with the name | |
563 | (should be rare), we fall back to the general algorithm because | |
564 | we would otherwise have to sort the sections to make sure they | |
565 | get processed in the bfd's order. */ | |
566 | bfd_boolean multiple_sections_found; | |
567 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
568 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
569 | ||
570 | if (multiple_sections_found) | |
571 | walk_wild_section_general (ptr, file, callback, data); | |
572 | else if (s0) | |
573 | walk_wild_consider_section (ptr, file, s0, sec0, callback, data); | |
574 | } | |
575 | ||
576 | static void | |
577 | walk_wild_section_specs1_wild1 (lang_wild_statement_type *ptr, | |
578 | lang_input_statement_type *file, | |
579 | callback_t callback, | |
580 | void *data) | |
581 | { | |
582 | asection *s; | |
583 | struct wildcard_list *wildsec0 = ptr->handler_data[0]; | |
584 | ||
585 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
586 | { | |
587 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
588 | bfd_boolean skip = !match_simple_wild (wildsec0->spec.name, sname); | |
589 | ||
590 | if (!skip) | |
591 | walk_wild_consider_section (ptr, file, s, wildsec0, callback, data); | |
592 | } | |
593 | } | |
594 | ||
595 | static void | |
596 | walk_wild_section_specs2_wild1 (lang_wild_statement_type *ptr, | |
597 | lang_input_statement_type *file, | |
598 | callback_t callback, | |
599 | void *data) | |
600 | { | |
601 | asection *s; | |
602 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
603 | struct wildcard_list *wildsec1 = ptr->handler_data[1]; | |
604 | bfd_boolean multiple_sections_found; | |
605 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
606 | ||
607 | if (multiple_sections_found) | |
608 | { | |
609 | walk_wild_section_general (ptr, file, callback, data); | |
610 | return; | |
611 | } | |
612 | ||
613 | /* Note that if the section was not found, s0 is NULL and | |
614 | we'll simply never succeed the s == s0 test below. */ | |
615 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
616 | { | |
617 | /* Recall that in this code path, a section cannot satisfy more | |
618 | than one spec, so if s == s0 then it cannot match | |
619 | wildspec1. */ | |
620 | if (s == s0) | |
621 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
622 | else | |
623 | { | |
624 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
625 | bfd_boolean skip = !match_simple_wild (wildsec1->spec.name, sname); | |
626 | ||
627 | if (!skip) | |
628 | walk_wild_consider_section (ptr, file, s, wildsec1, callback, | |
629 | data); | |
630 | } | |
631 | } | |
632 | } | |
633 | ||
634 | static void | |
635 | walk_wild_section_specs3_wild2 (lang_wild_statement_type *ptr, | |
636 | lang_input_statement_type *file, | |
637 | callback_t callback, | |
638 | void *data) | |
639 | { | |
640 | asection *s; | |
641 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
642 | struct wildcard_list *wildsec1 = ptr->handler_data[1]; | |
643 | struct wildcard_list *wildsec2 = ptr->handler_data[2]; | |
644 | bfd_boolean multiple_sections_found; | |
645 | asection *s0 = find_section (file, sec0, &multiple_sections_found); | |
646 | ||
647 | if (multiple_sections_found) | |
648 | { | |
649 | walk_wild_section_general (ptr, file, callback, data); | |
650 | return; | |
651 | } | |
652 | ||
653 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
654 | { | |
655 | if (s == s0) | |
656 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
657 | else | |
658 | { | |
659 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
660 | bfd_boolean skip = !match_simple_wild (wildsec1->spec.name, sname); | |
661 | ||
662 | if (!skip) | |
663 | walk_wild_consider_section (ptr, file, s, wildsec1, callback, data); | |
664 | else | |
665 | { | |
666 | skip = !match_simple_wild (wildsec2->spec.name, sname); | |
667 | if (!skip) | |
668 | walk_wild_consider_section (ptr, file, s, wildsec2, callback, | |
669 | data); | |
670 | } | |
671 | } | |
672 | } | |
673 | } | |
674 | ||
675 | static void | |
676 | walk_wild_section_specs4_wild2 (lang_wild_statement_type *ptr, | |
677 | lang_input_statement_type *file, | |
678 | callback_t callback, | |
679 | void *data) | |
680 | { | |
681 | asection *s; | |
682 | struct wildcard_list *sec0 = ptr->handler_data[0]; | |
683 | struct wildcard_list *sec1 = ptr->handler_data[1]; | |
684 | struct wildcard_list *wildsec2 = ptr->handler_data[2]; | |
685 | struct wildcard_list *wildsec3 = ptr->handler_data[3]; | |
686 | bfd_boolean multiple_sections_found; | |
687 | asection *s0 = find_section (file, sec0, &multiple_sections_found), *s1; | |
688 | ||
689 | if (multiple_sections_found) | |
690 | { | |
691 | walk_wild_section_general (ptr, file, callback, data); | |
692 | return; | |
693 | } | |
694 | ||
695 | s1 = find_section (file, sec1, &multiple_sections_found); | |
696 | if (multiple_sections_found) | |
697 | { | |
698 | walk_wild_section_general (ptr, file, callback, data); | |
699 | return; | |
700 | } | |
701 | ||
702 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
703 | { | |
704 | if (s == s0) | |
705 | walk_wild_consider_section (ptr, file, s, sec0, callback, data); | |
706 | else | |
707 | if (s == s1) | |
708 | walk_wild_consider_section (ptr, file, s, sec1, callback, data); | |
709 | else | |
710 | { | |
711 | const char *sname = bfd_get_section_name (file->the_bfd, s); | |
712 | bfd_boolean skip = !match_simple_wild (wildsec2->spec.name, | |
713 | sname); | |
714 | ||
715 | if (!skip) | |
716 | walk_wild_consider_section (ptr, file, s, wildsec2, callback, | |
717 | data); | |
718 | else | |
719 | { | |
720 | skip = !match_simple_wild (wildsec3->spec.name, sname); | |
721 | if (!skip) | |
722 | walk_wild_consider_section (ptr, file, s, wildsec3, | |
723 | callback, data); | |
724 | } | |
725 | } | |
726 | } | |
727 | } | |
728 | ||
729 | static void | |
730 | walk_wild_section (lang_wild_statement_type *ptr, | |
731 | lang_input_statement_type *file, | |
732 | callback_t callback, | |
733 | void *data) | |
734 | { | |
66be1055 | 735 | if (file->flags.just_syms) |
72223188 JJ |
736 | return; |
737 | ||
738 | (*ptr->walk_wild_section_handler) (ptr, file, callback, data); | |
739 | } | |
740 | ||
741 | /* Returns TRUE when name1 is a wildcard spec that might match | |
742 | something name2 can match. We're conservative: we return FALSE | |
743 | only if the prefixes of name1 and name2 are different up to the | |
744 | first wildcard character. */ | |
745 | ||
746 | static bfd_boolean | |
747 | wild_spec_can_overlap (const char *name1, const char *name2) | |
748 | { | |
749 | size_t prefix1_len = strcspn (name1, "?*["); | |
750 | size_t prefix2_len = strcspn (name2, "?*["); | |
751 | size_t min_prefix_len; | |
752 | ||
753 | /* Note that if there is no wildcard character, then we treat the | |
754 | terminating 0 as part of the prefix. Thus ".text" won't match | |
755 | ".text." or ".text.*", for example. */ | |
756 | if (name1[prefix1_len] == '\0') | |
757 | prefix1_len++; | |
758 | if (name2[prefix2_len] == '\0') | |
759 | prefix2_len++; | |
760 | ||
761 | min_prefix_len = prefix1_len < prefix2_len ? prefix1_len : prefix2_len; | |
762 | ||
763 | return memcmp (name1, name2, min_prefix_len) == 0; | |
764 | } | |
765 | ||
766 | /* Select specialized code to handle various kinds of wildcard | |
767 | statements. */ | |
768 | ||
769 | static void | |
770 | analyze_walk_wild_section_handler (lang_wild_statement_type *ptr) | |
771 | { | |
772 | int sec_count = 0; | |
773 | int wild_name_count = 0; | |
774 | struct wildcard_list *sec; | |
775 | int signature; | |
776 | int data_counter; | |
777 | ||
778 | ptr->walk_wild_section_handler = walk_wild_section_general; | |
7544697a AM |
779 | ptr->handler_data[0] = NULL; |
780 | ptr->handler_data[1] = NULL; | |
781 | ptr->handler_data[2] = NULL; | |
782 | ptr->handler_data[3] = NULL; | |
e6f2cbf5 | 783 | ptr->tree = NULL; |
72223188 JJ |
784 | |
785 | /* Count how many wildcard_specs there are, and how many of those | |
786 | actually use wildcards in the name. Also, bail out if any of the | |
787 | wildcard names are NULL. (Can this actually happen? | |
788 | walk_wild_section used to test for it.) And bail out if any | |
789 | of the wildcards are more complex than a simple string | |
790 | ending in a single '*'. */ | |
791 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
792 | { | |
793 | ++sec_count; | |
794 | if (sec->spec.name == NULL) | |
795 | return; | |
796 | if (wildcardp (sec->spec.name)) | |
797 | { | |
798 | ++wild_name_count; | |
799 | if (!is_simple_wild (sec->spec.name)) | |
800 | return; | |
801 | } | |
802 | } | |
803 | ||
804 | /* The zero-spec case would be easy to optimize but it doesn't | |
805 | happen in practice. Likewise, more than 4 specs doesn't | |
806 | happen in practice. */ | |
807 | if (sec_count == 0 || sec_count > 4) | |
808 | return; | |
809 | ||
810 | /* Check that no two specs can match the same section. */ | |
811 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
812 | { | |
813 | struct wildcard_list *sec2; | |
814 | for (sec2 = sec->next; sec2 != NULL; sec2 = sec2->next) | |
815 | { | |
816 | if (wild_spec_can_overlap (sec->spec.name, sec2->spec.name)) | |
817 | return; | |
818 | } | |
819 | } | |
820 | ||
821 | signature = (sec_count << 8) + wild_name_count; | |
822 | switch (signature) | |
823 | { | |
824 | case 0x0100: | |
825 | ptr->walk_wild_section_handler = walk_wild_section_specs1_wild0; | |
826 | break; | |
827 | case 0x0101: | |
828 | ptr->walk_wild_section_handler = walk_wild_section_specs1_wild1; | |
829 | break; | |
830 | case 0x0201: | |
831 | ptr->walk_wild_section_handler = walk_wild_section_specs2_wild1; | |
832 | break; | |
833 | case 0x0302: | |
834 | ptr->walk_wild_section_handler = walk_wild_section_specs3_wild2; | |
835 | break; | |
836 | case 0x0402: | |
837 | ptr->walk_wild_section_handler = walk_wild_section_specs4_wild2; | |
838 | break; | |
839 | default: | |
840 | return; | |
841 | } | |
842 | ||
843 | /* Now fill the data array with pointers to the specs, first the | |
844 | specs with non-wildcard names, then the specs with wildcard | |
845 | names. It's OK to process the specs in different order from the | |
846 | given order, because we've already determined that no section | |
847 | will match more than one spec. */ | |
848 | data_counter = 0; | |
849 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
850 | if (!wildcardp (sec->spec.name)) | |
851 | ptr->handler_data[data_counter++] = sec; | |
852 | for (sec = ptr->section_list; sec != NULL; sec = sec->next) | |
853 | if (wildcardp (sec->spec.name)) | |
854 | ptr->handler_data[data_counter++] = sec; | |
855 | } | |
856 | ||
4dec4d4e RH |
857 | /* Handle a wild statement for a single file F. */ |
858 | ||
859 | static void | |
1579bae1 AM |
860 | walk_wild_file (lang_wild_statement_type *s, |
861 | lang_input_statement_type *f, | |
862 | callback_t callback, | |
863 | void *data) | |
4dec4d4e RH |
864 | { |
865 | if (f->the_bfd == NULL | |
866 | || ! bfd_check_format (f->the_bfd, bfd_archive)) | |
b6bf44ba | 867 | walk_wild_section (s, f, callback, data); |
4dec4d4e RH |
868 | else |
869 | { | |
870 | bfd *member; | |
871 | ||
872 | /* This is an archive file. We must map each member of the | |
873 | archive separately. */ | |
1579bae1 | 874 | member = bfd_openr_next_archived_file (f->the_bfd, NULL); |
4dec4d4e RH |
875 | while (member != NULL) |
876 | { | |
877 | /* When lookup_name is called, it will call the add_symbols | |
878 | entry point for the archive. For each element of the | |
879 | archive which is included, BFD will call ldlang_add_file, | |
880 | which will set the usrdata field of the member to the | |
881 | lang_input_statement. */ | |
882 | if (member->usrdata != NULL) | |
883 | { | |
1e9cc1c2 | 884 | walk_wild_section (s, |
4724d37e RM |
885 | (lang_input_statement_type *) member->usrdata, |
886 | callback, data); | |
4dec4d4e RH |
887 | } |
888 | ||
889 | member = bfd_openr_next_archived_file (f->the_bfd, member); | |
890 | } | |
891 | } | |
892 | } | |
893 | ||
894 | static void | |
1579bae1 | 895 | walk_wild (lang_wild_statement_type *s, callback_t callback, void *data) |
4dec4d4e | 896 | { |
b6bf44ba | 897 | const char *file_spec = s->filename; |
97407faf | 898 | char *p; |
b6bf44ba AM |
899 | |
900 | if (file_spec == NULL) | |
4dec4d4e RH |
901 | { |
902 | /* Perform the iteration over all files in the list. */ | |
e50d8076 | 903 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 904 | { |
b6bf44ba | 905 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
906 | } |
907 | } | |
97407faf AM |
908 | else if ((p = archive_path (file_spec)) != NULL) |
909 | { | |
910 | LANG_FOR_EACH_INPUT_STATEMENT (f) | |
911 | { | |
967928e9 AM |
912 | if (input_statement_is_archive_path (file_spec, p, f)) |
913 | walk_wild_file (s, f, callback, data); | |
97407faf AM |
914 | } |
915 | } | |
b6bf44ba | 916 | else if (wildcardp (file_spec)) |
4dec4d4e | 917 | { |
e50d8076 | 918 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 919 | { |
68bbb9f7 | 920 | if (fnmatch (file_spec, f->filename, 0) == 0) |
b6bf44ba | 921 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
922 | } |
923 | } | |
924 | else | |
925 | { | |
e50d8076 NC |
926 | lang_input_statement_type *f; |
927 | ||
4dec4d4e | 928 | /* Perform the iteration over a single file. */ |
b6bf44ba | 929 | f = lookup_name (file_spec); |
6770ec8c | 930 | if (f) |
b6bf44ba | 931 | walk_wild_file (s, f, callback, data); |
4dec4d4e | 932 | } |
5f992e62 AM |
933 | } |
934 | ||
08da4cac | 935 | /* lang_for_each_statement walks the parse tree and calls the provided |
8658f989 AM |
936 | function for each node, except those inside output section statements |
937 | with constraint set to -1. */ | |
252b5132 | 938 | |
8658f989 | 939 | void |
1579bae1 AM |
940 | lang_for_each_statement_worker (void (*func) (lang_statement_union_type *), |
941 | lang_statement_union_type *s) | |
252b5132 | 942 | { |
1579bae1 | 943 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
944 | { |
945 | func (s); | |
946 | ||
947 | switch (s->header.type) | |
948 | { | |
949 | case lang_constructors_statement_enum: | |
950 | lang_for_each_statement_worker (func, constructor_list.head); | |
951 | break; | |
952 | case lang_output_section_statement_enum: | |
8658f989 AM |
953 | if (s->output_section_statement.constraint != -1) |
954 | lang_for_each_statement_worker | |
955 | (func, s->output_section_statement.children.head); | |
252b5132 RH |
956 | break; |
957 | case lang_wild_statement_enum: | |
6feb9908 AM |
958 | lang_for_each_statement_worker (func, |
959 | s->wild_statement.children.head); | |
252b5132 RH |
960 | break; |
961 | case lang_group_statement_enum: | |
962 | lang_for_each_statement_worker (func, | |
963 | s->group_statement.children.head); | |
964 | break; | |
965 | case lang_data_statement_enum: | |
966 | case lang_reloc_statement_enum: | |
967 | case lang_object_symbols_statement_enum: | |
968 | case lang_output_statement_enum: | |
969 | case lang_target_statement_enum: | |
970 | case lang_input_section_enum: | |
971 | case lang_input_statement_enum: | |
972 | case lang_assignment_statement_enum: | |
973 | case lang_padding_statement_enum: | |
974 | case lang_address_statement_enum: | |
975 | case lang_fill_statement_enum: | |
53d25da6 | 976 | case lang_insert_statement_enum: |
252b5132 RH |
977 | break; |
978 | default: | |
979 | FAIL (); | |
980 | break; | |
981 | } | |
982 | } | |
983 | } | |
984 | ||
985 | void | |
1579bae1 | 986 | lang_for_each_statement (void (*func) (lang_statement_union_type *)) |
252b5132 | 987 | { |
08da4cac | 988 | lang_for_each_statement_worker (func, statement_list.head); |
252b5132 RH |
989 | } |
990 | ||
991 | /*----------------------------------------------------------------------*/ | |
08da4cac | 992 | |
252b5132 | 993 | void |
1579bae1 | 994 | lang_list_init (lang_statement_list_type *list) |
252b5132 | 995 | { |
1579bae1 | 996 | list->head = NULL; |
252b5132 RH |
997 | list->tail = &list->head; |
998 | } | |
999 | ||
bde18da4 AM |
1000 | void |
1001 | push_stat_ptr (lang_statement_list_type *new_ptr) | |
1002 | { | |
1003 | if (stat_save_ptr >= stat_save + sizeof (stat_save) / sizeof (stat_save[0])) | |
1004 | abort (); | |
1005 | *stat_save_ptr++ = stat_ptr; | |
1006 | stat_ptr = new_ptr; | |
1007 | } | |
1008 | ||
1009 | void | |
1010 | pop_stat_ptr (void) | |
1011 | { | |
1012 | if (stat_save_ptr <= stat_save) | |
1013 | abort (); | |
1014 | stat_ptr = *--stat_save_ptr; | |
1015 | } | |
1016 | ||
08da4cac | 1017 | /* Build a new statement node for the parse tree. */ |
252b5132 | 1018 | |
08da4cac | 1019 | static lang_statement_union_type * |
1579bae1 AM |
1020 | new_statement (enum statement_enum type, |
1021 | size_t size, | |
1022 | lang_statement_list_type *list) | |
252b5132 | 1023 | { |
d3ce72d0 | 1024 | lang_statement_union_type *new_stmt; |
252b5132 | 1025 | |
d3ce72d0 NC |
1026 | new_stmt = (lang_statement_union_type *) stat_alloc (size); |
1027 | new_stmt->header.type = type; | |
1028 | new_stmt->header.next = NULL; | |
1029 | lang_statement_append (list, new_stmt, &new_stmt->header.next); | |
1030 | return new_stmt; | |
252b5132 RH |
1031 | } |
1032 | ||
08da4cac KH |
1033 | /* Build a new input file node for the language. There are several |
1034 | ways in which we treat an input file, eg, we only look at symbols, | |
1035 | or prefix it with a -l etc. | |
252b5132 | 1036 | |
08da4cac | 1037 | We can be supplied with requests for input files more than once; |
396a2467 | 1038 | they may, for example be split over several lines like foo.o(.text) |
d1778b88 | 1039 | foo.o(.data) etc, so when asked for a file we check that we haven't |
08da4cac | 1040 | got it already so we don't duplicate the bfd. */ |
252b5132 | 1041 | |
252b5132 | 1042 | static lang_input_statement_type * |
1579bae1 AM |
1043 | new_afile (const char *name, |
1044 | lang_input_file_enum_type file_type, | |
1045 | const char *target, | |
1046 | bfd_boolean add_to_list) | |
252b5132 RH |
1047 | { |
1048 | lang_input_statement_type *p; | |
1049 | ||
66be1055 AM |
1050 | lang_has_input_file = TRUE; |
1051 | ||
252b5132 | 1052 | if (add_to_list) |
d3ce72d0 | 1053 | p = (lang_input_statement_type *) new_stat (lang_input_statement, stat_ptr); |
252b5132 RH |
1054 | else |
1055 | { | |
d3ce72d0 | 1056 | p = (lang_input_statement_type *) |
4724d37e | 1057 | stat_alloc (sizeof (lang_input_statement_type)); |
bd4d42c1 | 1058 | p->header.type = lang_input_statement_enum; |
252b5132 RH |
1059 | p->header.next = NULL; |
1060 | } | |
1061 | ||
66be1055 AM |
1062 | memset (&p->the_bfd, 0, |
1063 | sizeof (*p) - offsetof (lang_input_statement_type, the_bfd)); | |
252b5132 | 1064 | p->target = target; |
66be1055 AM |
1065 | p->flags.dynamic = input_flags.dynamic; |
1066 | p->flags.add_DT_NEEDED_for_dynamic = input_flags.add_DT_NEEDED_for_dynamic; | |
1067 | p->flags.add_DT_NEEDED_for_regular = input_flags.add_DT_NEEDED_for_regular; | |
1068 | p->flags.whole_archive = input_flags.whole_archive; | |
f4a23d42 | 1069 | p->flags.sysrooted = input_flags.sysrooted; |
bcb674cf | 1070 | |
252b5132 RH |
1071 | switch (file_type) |
1072 | { | |
1073 | case lang_input_file_is_symbols_only_enum: | |
1074 | p->filename = name; | |
252b5132 | 1075 | p->local_sym_name = name; |
66be1055 AM |
1076 | p->flags.real = TRUE; |
1077 | p->flags.just_syms = TRUE; | |
252b5132 RH |
1078 | break; |
1079 | case lang_input_file_is_fake_enum: | |
1080 | p->filename = name; | |
252b5132 | 1081 | p->local_sym_name = name; |
252b5132 RH |
1082 | break; |
1083 | case lang_input_file_is_l_enum: | |
d4ae5fb0 AM |
1084 | if (name[0] == ':' && name[1] != '\0') |
1085 | { | |
1086 | p->filename = name + 1; | |
1087 | p->flags.full_name_provided = TRUE; | |
1088 | } | |
1089 | else | |
1090 | p->filename = name; | |
ff7a0acf | 1091 | p->local_sym_name = concat ("-l", name, (const char *) NULL); |
66be1055 AM |
1092 | p->flags.maybe_archive = TRUE; |
1093 | p->flags.real = TRUE; | |
1094 | p->flags.search_dirs = TRUE; | |
252b5132 RH |
1095 | break; |
1096 | case lang_input_file_is_marker_enum: | |
1097 | p->filename = name; | |
252b5132 | 1098 | p->local_sym_name = name; |
66be1055 | 1099 | p->flags.search_dirs = TRUE; |
252b5132 RH |
1100 | break; |
1101 | case lang_input_file_is_search_file_enum: | |
1102 | p->filename = name; | |
252b5132 | 1103 | p->local_sym_name = name; |
66be1055 AM |
1104 | p->flags.real = TRUE; |
1105 | p->flags.search_dirs = TRUE; | |
252b5132 RH |
1106 | break; |
1107 | case lang_input_file_is_file_enum: | |
1108 | p->filename = name; | |
252b5132 | 1109 | p->local_sym_name = name; |
66be1055 | 1110 | p->flags.real = TRUE; |
252b5132 RH |
1111 | break; |
1112 | default: | |
1113 | FAIL (); | |
1114 | } | |
c4b78195 | 1115 | |
252b5132 RH |
1116 | lang_statement_append (&input_file_chain, |
1117 | (lang_statement_union_type *) p, | |
1118 | &p->next_real_file); | |
1119 | return p; | |
1120 | } | |
1121 | ||
1122 | lang_input_statement_type * | |
1579bae1 AM |
1123 | lang_add_input_file (const char *name, |
1124 | lang_input_file_enum_type file_type, | |
1125 | const char *target) | |
252b5132 | 1126 | { |
bfa23434 HPN |
1127 | if (name != NULL && *name == '=') |
1128 | { | |
1129 | lang_input_statement_type *ret; | |
1130 | char *sysrooted_name | |
1131 | = concat (ld_sysroot, name + 1, (const char *) NULL); | |
1132 | ||
1133 | /* We've now forcibly prepended the sysroot, making the input | |
1134 | file independent of the context. Therefore, temporarily | |
1135 | force a non-sysrooted context for this statement, so it won't | |
1136 | get the sysroot prepended again when opened. (N.B. if it's a | |
1137 | script, any child nodes with input files starting with "/" | |
1138 | will be handled as "sysrooted" as they'll be found to be | |
1139 | within the sysroot subdirectory.) */ | |
1140 | unsigned int outer_sysrooted = input_flags.sysrooted; | |
1141 | input_flags.sysrooted = 0; | |
1142 | ret = new_afile (sysrooted_name, file_type, target, TRUE); | |
1143 | input_flags.sysrooted = outer_sysrooted; | |
1144 | return ret; | |
1145 | } | |
1146 | ||
b34976b6 | 1147 | return new_afile (name, file_type, target, TRUE); |
252b5132 RH |
1148 | } |
1149 | ||
409d7240 | 1150 | struct out_section_hash_entry |
750877ba L |
1151 | { |
1152 | struct bfd_hash_entry root; | |
409d7240 | 1153 | lang_statement_union_type s; |
750877ba L |
1154 | }; |
1155 | ||
1156 | /* The hash table. */ | |
1157 | ||
409d7240 | 1158 | static struct bfd_hash_table output_section_statement_table; |
750877ba | 1159 | |
384a9dda | 1160 | /* Support routines for the hash table used by lang_output_section_find, |
750877ba L |
1161 | initialize the table, fill in an entry and remove the table. */ |
1162 | ||
1163 | static struct bfd_hash_entry * | |
329c1c86 | 1164 | output_section_statement_newfunc (struct bfd_hash_entry *entry, |
409d7240 AM |
1165 | struct bfd_hash_table *table, |
1166 | const char *string) | |
750877ba | 1167 | { |
384a9dda | 1168 | lang_output_section_statement_type **nextp; |
409d7240 | 1169 | struct out_section_hash_entry *ret; |
384a9dda AM |
1170 | |
1171 | if (entry == NULL) | |
1172 | { | |
1e9cc1c2 | 1173 | entry = (struct bfd_hash_entry *) bfd_hash_allocate (table, |
4724d37e | 1174 | sizeof (*ret)); |
384a9dda AM |
1175 | if (entry == NULL) |
1176 | return entry; | |
1177 | } | |
1178 | ||
1179 | entry = bfd_hash_newfunc (entry, table, string); | |
1180 | if (entry == NULL) | |
1181 | return entry; | |
1182 | ||
409d7240 AM |
1183 | ret = (struct out_section_hash_entry *) entry; |
1184 | memset (&ret->s, 0, sizeof (ret->s)); | |
1185 | ret->s.header.type = lang_output_section_statement_enum; | |
1186 | ret->s.output_section_statement.subsection_alignment = -1; | |
1187 | ret->s.output_section_statement.section_alignment = -1; | |
1188 | ret->s.output_section_statement.block_value = 1; | |
1189 | lang_list_init (&ret->s.output_section_statement.children); | |
1190 | lang_statement_append (stat_ptr, &ret->s, &ret->s.header.next); | |
384a9dda | 1191 | |
218868ba AM |
1192 | /* For every output section statement added to the list, except the |
1193 | first one, lang_output_section_statement.tail points to the "next" | |
1194 | field of the last element of the list. */ | |
1195 | if (lang_output_section_statement.head != NULL) | |
409d7240 AM |
1196 | ret->s.output_section_statement.prev |
1197 | = ((lang_output_section_statement_type *) | |
1198 | ((char *) lang_output_section_statement.tail | |
1199 | - offsetof (lang_output_section_statement_type, next))); | |
218868ba | 1200 | |
384a9dda AM |
1201 | /* GCC's strict aliasing rules prevent us from just casting the |
1202 | address, so we store the pointer in a variable and cast that | |
1203 | instead. */ | |
409d7240 | 1204 | nextp = &ret->s.output_section_statement.next; |
384a9dda | 1205 | lang_statement_append (&lang_output_section_statement, |
409d7240 | 1206 | &ret->s, |
384a9dda AM |
1207 | (lang_statement_union_type **) nextp); |
1208 | return &ret->root; | |
750877ba L |
1209 | } |
1210 | ||
1211 | static void | |
409d7240 | 1212 | output_section_statement_table_init (void) |
750877ba | 1213 | { |
409d7240 AM |
1214 | if (!bfd_hash_table_init_n (&output_section_statement_table, |
1215 | output_section_statement_newfunc, | |
1216 | sizeof (struct out_section_hash_entry), | |
66eb6687 | 1217 | 61)) |
384a9dda | 1218 | einfo (_("%P%F: can not create hash table: %E\n")); |
750877ba L |
1219 | } |
1220 | ||
1221 | static void | |
409d7240 | 1222 | output_section_statement_table_free (void) |
750877ba | 1223 | { |
409d7240 | 1224 | bfd_hash_table_free (&output_section_statement_table); |
750877ba L |
1225 | } |
1226 | ||
08da4cac KH |
1227 | /* Build enough state so that the parser can build its tree. */ |
1228 | ||
252b5132 | 1229 | void |
1579bae1 | 1230 | lang_init (void) |
252b5132 RH |
1231 | { |
1232 | obstack_begin (&stat_obstack, 1000); | |
1233 | ||
1234 | stat_ptr = &statement_list; | |
1235 | ||
409d7240 | 1236 | output_section_statement_table_init (); |
750877ba | 1237 | |
252b5132 RH |
1238 | lang_list_init (stat_ptr); |
1239 | ||
1240 | lang_list_init (&input_file_chain); | |
1241 | lang_list_init (&lang_output_section_statement); | |
1242 | lang_list_init (&file_chain); | |
1579bae1 AM |
1243 | first_file = lang_add_input_file (NULL, lang_input_file_is_marker_enum, |
1244 | NULL); | |
08da4cac | 1245 | abs_output_section = |
66c103b7 | 1246 | lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME, 0, TRUE); |
252b5132 RH |
1247 | |
1248 | abs_output_section->bfd_section = bfd_abs_section_ptr; | |
420e579c | 1249 | |
16e4ecc0 AM |
1250 | asneeded_list_head = NULL; |
1251 | asneeded_list_tail = &asneeded_list_head; | |
252b5132 RH |
1252 | } |
1253 | ||
750877ba L |
1254 | void |
1255 | lang_finish (void) | |
1256 | { | |
409d7240 | 1257 | output_section_statement_table_free (); |
750877ba L |
1258 | } |
1259 | ||
252b5132 | 1260 | /*---------------------------------------------------------------------- |
08da4cac KH |
1261 | A region is an area of memory declared with the |
1262 | MEMORY { name:org=exp, len=exp ... } | |
1263 | syntax. | |
252b5132 | 1264 | |
08da4cac | 1265 | We maintain a list of all the regions here. |
252b5132 | 1266 | |
08da4cac | 1267 | If no regions are specified in the script, then the default is used |
a747ee4d NC |
1268 | which is created when looked up to be the entire data space. |
1269 | ||
1270 | If create is true we are creating a region inside a MEMORY block. | |
1271 | In this case it is probably an error to create a region that has | |
1272 | already been created. If we are not inside a MEMORY block it is | |
1273 | dubious to use an undeclared region name (except DEFAULT_MEMORY_REGION) | |
4a93e180 | 1274 | and so we issue a warning. |
1e0061d2 | 1275 | |
4a93e180 NC |
1276 | Each region has at least one name. The first name is either |
1277 | DEFAULT_MEMORY_REGION or the name given in the MEMORY block. You can add | |
1278 | alias names to an existing region within a script with | |
1279 | REGION_ALIAS (alias, region_name). Each name corresponds to at most one | |
1280 | region. */ | |
252b5132 RH |
1281 | |
1282 | static lang_memory_region_type *lang_memory_region_list; | |
6feb9908 AM |
1283 | static lang_memory_region_type **lang_memory_region_list_tail |
1284 | = &lang_memory_region_list; | |
252b5132 RH |
1285 | |
1286 | lang_memory_region_type * | |
a747ee4d | 1287 | lang_memory_region_lookup (const char *const name, bfd_boolean create) |
252b5132 | 1288 | { |
4a93e180 NC |
1289 | lang_memory_region_name *n; |
1290 | lang_memory_region_type *r; | |
d3ce72d0 | 1291 | lang_memory_region_type *new_region; |
252b5132 | 1292 | |
9f88b410 RS |
1293 | /* NAME is NULL for LMA memspecs if no region was specified. */ |
1294 | if (name == NULL) | |
1295 | return NULL; | |
1296 | ||
4a93e180 NC |
1297 | for (r = lang_memory_region_list; r != NULL; r = r->next) |
1298 | for (n = &r->name_list; n != NULL; n = n->next) | |
1299 | if (strcmp (n->name, name) == 0) | |
4724d37e RM |
1300 | { |
1301 | if (create) | |
1302 | einfo (_("%P:%S: warning: redeclaration of memory region `%s'\n"), | |
1303 | NULL, name); | |
1304 | return r; | |
1305 | } | |
252b5132 | 1306 | |
a747ee4d | 1307 | if (!create && strcmp (name, DEFAULT_MEMORY_REGION)) |
dab69f68 AM |
1308 | einfo (_("%P:%S: warning: memory region `%s' not declared\n"), |
1309 | NULL, name); | |
a747ee4d | 1310 | |
d3ce72d0 NC |
1311 | new_region = (lang_memory_region_type *) |
1312 | stat_alloc (sizeof (lang_memory_region_type)); | |
252b5132 | 1313 | |
d3ce72d0 NC |
1314 | new_region->name_list.name = xstrdup (name); |
1315 | new_region->name_list.next = NULL; | |
1316 | new_region->next = NULL; | |
cc9ad334 | 1317 | new_region->origin_exp = NULL; |
d3ce72d0 | 1318 | new_region->origin = 0; |
cc9ad334 | 1319 | new_region->length_exp = NULL; |
d3ce72d0 NC |
1320 | new_region->length = ~(bfd_size_type) 0; |
1321 | new_region->current = 0; | |
1322 | new_region->last_os = NULL; | |
1323 | new_region->flags = 0; | |
1324 | new_region->not_flags = 0; | |
1325 | new_region->had_full_message = FALSE; | |
252b5132 | 1326 | |
d3ce72d0 NC |
1327 | *lang_memory_region_list_tail = new_region; |
1328 | lang_memory_region_list_tail = &new_region->next; | |
66e28d60 | 1329 | |
d3ce72d0 | 1330 | return new_region; |
252b5132 RH |
1331 | } |
1332 | ||
4a93e180 NC |
1333 | void |
1334 | lang_memory_region_alias (const char * alias, const char * region_name) | |
1335 | { | |
1336 | lang_memory_region_name * n; | |
1337 | lang_memory_region_type * r; | |
1338 | lang_memory_region_type * region; | |
1339 | ||
1340 | /* The default region must be unique. This ensures that it is not necessary | |
1341 | to iterate through the name list if someone wants the check if a region is | |
1342 | the default memory region. */ | |
1343 | if (strcmp (region_name, DEFAULT_MEMORY_REGION) == 0 | |
1344 | || strcmp (alias, DEFAULT_MEMORY_REGION) == 0) | |
dab69f68 | 1345 | einfo (_("%F%P:%S: error: alias for default memory region\n"), NULL); |
4a93e180 NC |
1346 | |
1347 | /* Look for the target region and check if the alias is not already | |
1348 | in use. */ | |
1349 | region = NULL; | |
1350 | for (r = lang_memory_region_list; r != NULL; r = r->next) | |
1351 | for (n = &r->name_list; n != NULL; n = n->next) | |
1352 | { | |
4724d37e RM |
1353 | if (region == NULL && strcmp (n->name, region_name) == 0) |
1354 | region = r; | |
1355 | if (strcmp (n->name, alias) == 0) | |
1356 | einfo (_("%F%P:%S: error: redefinition of memory region " | |
1357 | "alias `%s'\n"), | |
1358 | NULL, alias); | |
4a93e180 NC |
1359 | } |
1360 | ||
1361 | /* Check if the target region exists. */ | |
1362 | if (region == NULL) | |
1363 | einfo (_("%F%P:%S: error: memory region `%s' " | |
4724d37e RM |
1364 | "for alias `%s' does not exist\n"), |
1365 | NULL, region_name, alias); | |
4a93e180 NC |
1366 | |
1367 | /* Add alias to region name list. */ | |
1e9cc1c2 | 1368 | n = (lang_memory_region_name *) stat_alloc (sizeof (lang_memory_region_name)); |
4a93e180 NC |
1369 | n->name = xstrdup (alias); |
1370 | n->next = region->name_list.next; | |
1371 | region->name_list.next = n; | |
1372 | } | |
1373 | ||
5f992e62 | 1374 | static lang_memory_region_type * |
4a93e180 | 1375 | lang_memory_default (asection * section) |
252b5132 RH |
1376 | { |
1377 | lang_memory_region_type *p; | |
1378 | ||
1379 | flagword sec_flags = section->flags; | |
1380 | ||
1381 | /* Override SEC_DATA to mean a writable section. */ | |
1382 | if ((sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE)) == SEC_ALLOC) | |
1383 | sec_flags |= SEC_DATA; | |
1384 | ||
1579bae1 | 1385 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
252b5132 RH |
1386 | { |
1387 | if ((p->flags & sec_flags) != 0 | |
1388 | && (p->not_flags & sec_flags) == 0) | |
1389 | { | |
1390 | return p; | |
1391 | } | |
1392 | } | |
a747ee4d | 1393 | return lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE); |
252b5132 RH |
1394 | } |
1395 | ||
24ef1aa7 GM |
1396 | /* Get the output section statement directly from the userdata. */ |
1397 | ||
1398 | lang_output_section_statement_type * | |
1399 | lang_output_section_get (const asection *output_section) | |
1400 | { | |
1401 | return get_userdata (output_section); | |
1402 | } | |
1403 | ||
d127ecce AM |
1404 | /* Find or create an output_section_statement with the given NAME. |
1405 | If CONSTRAINT is non-zero match one with that constraint, otherwise | |
1406 | match any non-negative constraint. If CREATE, always make a | |
1407 | new output_section_statement for SPECIAL CONSTRAINT. */ | |
1408 | ||
384a9dda | 1409 | lang_output_section_statement_type * |
d127ecce | 1410 | lang_output_section_statement_lookup (const char *name, |
66c103b7 AM |
1411 | int constraint, |
1412 | bfd_boolean create) | |
252b5132 | 1413 | { |
409d7240 | 1414 | struct out_section_hash_entry *entry; |
252b5132 | 1415 | |
409d7240 AM |
1416 | entry = ((struct out_section_hash_entry *) |
1417 | bfd_hash_lookup (&output_section_statement_table, name, | |
66c103b7 | 1418 | create, FALSE)); |
384a9dda AM |
1419 | if (entry == NULL) |
1420 | { | |
66c103b7 AM |
1421 | if (create) |
1422 | einfo (_("%P%F: failed creating section `%s': %E\n"), name); | |
384a9dda AM |
1423 | return NULL; |
1424 | } | |
252b5132 | 1425 | |
409d7240 | 1426 | if (entry->s.output_section_statement.name != NULL) |
252b5132 | 1427 | { |
384a9dda AM |
1428 | /* We have a section of this name, but it might not have the correct |
1429 | constraint. */ | |
66c103b7 | 1430 | struct out_section_hash_entry *last_ent; |
66c103b7 | 1431 | |
d127ecce | 1432 | name = entry->s.output_section_statement.name; |
8a99a385 AM |
1433 | if (create && constraint == SPECIAL) |
1434 | /* Not traversing to the end reverses the order of the second | |
1435 | and subsequent SPECIAL sections in the hash table chain, | |
1436 | but that shouldn't matter. */ | |
1437 | last_ent = entry; | |
1438 | else | |
1439 | do | |
1440 | { | |
d127ecce AM |
1441 | if (constraint == entry->s.output_section_statement.constraint |
1442 | || (constraint == 0 | |
1443 | && entry->s.output_section_statement.constraint >= 0)) | |
8a99a385 AM |
1444 | return &entry->s.output_section_statement; |
1445 | last_ent = entry; | |
1446 | entry = (struct out_section_hash_entry *) entry->root.next; | |
1447 | } | |
1448 | while (entry != NULL | |
d127ecce | 1449 | && name == entry->s.output_section_statement.name); |
252b5132 | 1450 | |
66c103b7 AM |
1451 | if (!create) |
1452 | return NULL; | |
1453 | ||
409d7240 AM |
1454 | entry |
1455 | = ((struct out_section_hash_entry *) | |
1456 | output_section_statement_newfunc (NULL, | |
1457 | &output_section_statement_table, | |
1458 | name)); | |
750877ba | 1459 | if (entry == NULL) |
384a9dda AM |
1460 | { |
1461 | einfo (_("%P%F: failed creating section `%s': %E\n"), name); | |
1462 | return NULL; | |
1463 | } | |
1464 | entry->root = last_ent->root; | |
1465 | last_ent->root.next = &entry->root; | |
252b5132 | 1466 | } |
384a9dda | 1467 | |
409d7240 AM |
1468 | entry->s.output_section_statement.name = name; |
1469 | entry->s.output_section_statement.constraint = constraint; | |
1470 | return &entry->s.output_section_statement; | |
252b5132 RH |
1471 | } |
1472 | ||
d127ecce AM |
1473 | /* Find the next output_section_statement with the same name as OS. |
1474 | If CONSTRAINT is non-zero, find one with that constraint otherwise | |
1475 | match any non-negative constraint. */ | |
1476 | ||
1477 | lang_output_section_statement_type * | |
1478 | next_matching_output_section_statement (lang_output_section_statement_type *os, | |
1479 | int constraint) | |
1480 | { | |
1481 | /* All output_section_statements are actually part of a | |
1482 | struct out_section_hash_entry. */ | |
1483 | struct out_section_hash_entry *entry = (struct out_section_hash_entry *) | |
1484 | ((char *) os | |
1485 | - offsetof (struct out_section_hash_entry, s.output_section_statement)); | |
1486 | const char *name = os->name; | |
1487 | ||
1488 | ASSERT (name == entry->root.string); | |
1489 | do | |
1490 | { | |
1491 | entry = (struct out_section_hash_entry *) entry->root.next; | |
1492 | if (entry == NULL | |
1493 | || name != entry->s.output_section_statement.name) | |
1494 | return NULL; | |
1495 | } | |
1496 | while (constraint != entry->s.output_section_statement.constraint | |
1497 | && (constraint != 0 | |
1498 | || entry->s.output_section_statement.constraint < 0)); | |
1499 | ||
1500 | return &entry->s.output_section_statement; | |
1501 | } | |
1502 | ||
afd7a018 AM |
1503 | /* A variant of lang_output_section_find used by place_orphan. |
1504 | Returns the output statement that should precede a new output | |
1505 | statement for SEC. If an exact match is found on certain flags, | |
1506 | sets *EXACT too. */ | |
1507 | ||
1508 | lang_output_section_statement_type * | |
1509 | lang_output_section_find_by_flags (const asection *sec, | |
93638471 | 1510 | flagword sec_flags, |
390fbbf1 AM |
1511 | lang_output_section_statement_type **exact, |
1512 | lang_match_sec_type_func match_type) | |
afd7a018 AM |
1513 | { |
1514 | lang_output_section_statement_type *first, *look, *found; | |
93638471 | 1515 | flagword look_flags, differ; |
afd7a018 AM |
1516 | |
1517 | /* We know the first statement on this list is *ABS*. May as well | |
1518 | skip it. */ | |
1519 | first = &lang_output_section_statement.head->output_section_statement; | |
1520 | first = first->next; | |
1521 | ||
1522 | /* First try for an exact match. */ | |
1523 | found = NULL; | |
1524 | for (look = first; look; look = look->next) | |
1525 | { | |
d9d94ac8 | 1526 | look_flags = look->flags; |
afd7a018 | 1527 | if (look->bfd_section != NULL) |
ecca9871 | 1528 | { |
d9d94ac8 | 1529 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1530 | if (match_type && !match_type (link_info.output_bfd, |
1531 | look->bfd_section, | |
390fbbf1 | 1532 | sec->owner, sec)) |
ecca9871 L |
1533 | continue; |
1534 | } | |
d9d94ac8 AM |
1535 | differ = look_flags ^ sec_flags; |
1536 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
1537 | | SEC_CODE | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
afd7a018 AM |
1538 | found = look; |
1539 | } | |
1540 | if (found != NULL) | |
1541 | { | |
390fbbf1 AM |
1542 | if (exact != NULL) |
1543 | *exact = found; | |
afd7a018 AM |
1544 | return found; |
1545 | } | |
1546 | ||
d9d94ac8 AM |
1547 | if ((sec_flags & SEC_CODE) != 0 |
1548 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1549 | { |
1550 | /* Try for a rw code section. */ | |
1551 | for (look = first; look; look = look->next) | |
1552 | { | |
d9d94ac8 | 1553 | look_flags = look->flags; |
afd7a018 | 1554 | if (look->bfd_section != NULL) |
ecca9871 | 1555 | { |
d9d94ac8 | 1556 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1557 | if (match_type && !match_type (link_info.output_bfd, |
1558 | look->bfd_section, | |
390fbbf1 | 1559 | sec->owner, sec)) |
ecca9871 L |
1560 | continue; |
1561 | } | |
d9d94ac8 AM |
1562 | differ = look_flags ^ sec_flags; |
1563 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1564 | | SEC_CODE | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
afd7a018 AM |
1565 | found = look; |
1566 | } | |
afd7a018 | 1567 | } |
d9d94ac8 AM |
1568 | else if ((sec_flags & SEC_READONLY) != 0 |
1569 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1570 | { |
1571 | /* .rodata can go after .text, .sdata2 after .rodata. */ | |
1572 | for (look = first; look; look = look->next) | |
1573 | { | |
d9d94ac8 | 1574 | look_flags = look->flags; |
afd7a018 | 1575 | if (look->bfd_section != NULL) |
ecca9871 | 1576 | { |
d9d94ac8 | 1577 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1578 | if (match_type && !match_type (link_info.output_bfd, |
1579 | look->bfd_section, | |
390fbbf1 | 1580 | sec->owner, sec)) |
ecca9871 L |
1581 | continue; |
1582 | } | |
d9d94ac8 AM |
1583 | differ = look_flags ^ sec_flags; |
1584 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1585 | | SEC_READONLY | SEC_SMALL_DATA)) | |
1586 | || (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1587 | | SEC_READONLY)) | |
1588 | && !(look_flags & SEC_SMALL_DATA))) | |
afd7a018 AM |
1589 | found = look; |
1590 | } | |
afd7a018 | 1591 | } |
d9d94ac8 AM |
1592 | else if ((sec_flags & SEC_THREAD_LOCAL) != 0 |
1593 | && (sec_flags & SEC_ALLOC) != 0) | |
1594 | { | |
1595 | /* .tdata can go after .data, .tbss after .tdata. Treat .tbss | |
1596 | as if it were a loaded section, and don't use match_type. */ | |
1597 | bfd_boolean seen_thread_local = FALSE; | |
1598 | ||
1599 | match_type = NULL; | |
1600 | for (look = first; look; look = look->next) | |
1601 | { | |
1602 | look_flags = look->flags; | |
1603 | if (look->bfd_section != NULL) | |
1604 | look_flags = look->bfd_section->flags; | |
1605 | ||
1606 | differ = look_flags ^ (sec_flags | SEC_LOAD | SEC_HAS_CONTENTS); | |
1607 | if (!(differ & (SEC_THREAD_LOCAL | SEC_ALLOC))) | |
1608 | { | |
1609 | /* .tdata and .tbss must be adjacent and in that order. */ | |
1610 | if (!(look_flags & SEC_LOAD) | |
1611 | && (sec_flags & SEC_LOAD)) | |
1612 | /* ..so if we're at a .tbss section and we're placing | |
1613 | a .tdata section stop looking and return the | |
1614 | previous section. */ | |
1615 | break; | |
1616 | found = look; | |
1617 | seen_thread_local = TRUE; | |
1618 | } | |
1619 | else if (seen_thread_local) | |
1620 | break; | |
1621 | else if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD))) | |
1622 | found = look; | |
1623 | } | |
1624 | } | |
1625 | else if ((sec_flags & SEC_SMALL_DATA) != 0 | |
1626 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1627 | { |
1628 | /* .sdata goes after .data, .sbss after .sdata. */ | |
1629 | for (look = first; look; look = look->next) | |
1630 | { | |
d9d94ac8 | 1631 | look_flags = look->flags; |
afd7a018 | 1632 | if (look->bfd_section != NULL) |
ecca9871 | 1633 | { |
d9d94ac8 | 1634 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1635 | if (match_type && !match_type (link_info.output_bfd, |
1636 | look->bfd_section, | |
390fbbf1 | 1637 | sec->owner, sec)) |
ecca9871 L |
1638 | continue; |
1639 | } | |
d9d94ac8 AM |
1640 | differ = look_flags ^ sec_flags; |
1641 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1642 | | SEC_THREAD_LOCAL)) | |
1643 | || ((look_flags & SEC_SMALL_DATA) | |
1644 | && !(sec_flags & SEC_HAS_CONTENTS))) | |
afd7a018 AM |
1645 | found = look; |
1646 | } | |
afd7a018 | 1647 | } |
d9d94ac8 AM |
1648 | else if ((sec_flags & SEC_HAS_CONTENTS) != 0 |
1649 | && (sec_flags & SEC_ALLOC) != 0) | |
afd7a018 AM |
1650 | { |
1651 | /* .data goes after .rodata. */ | |
1652 | for (look = first; look; look = look->next) | |
1653 | { | |
d9d94ac8 | 1654 | look_flags = look->flags; |
afd7a018 | 1655 | if (look->bfd_section != NULL) |
ecca9871 | 1656 | { |
d9d94ac8 | 1657 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1658 | if (match_type && !match_type (link_info.output_bfd, |
1659 | look->bfd_section, | |
390fbbf1 | 1660 | sec->owner, sec)) |
ecca9871 L |
1661 | continue; |
1662 | } | |
d9d94ac8 AM |
1663 | differ = look_flags ^ sec_flags; |
1664 | if (!(differ & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
1665 | | SEC_SMALL_DATA | SEC_THREAD_LOCAL))) | |
afd7a018 AM |
1666 | found = look; |
1667 | } | |
afd7a018 | 1668 | } |
d9d94ac8 | 1669 | else if ((sec_flags & SEC_ALLOC) != 0) |
afd7a018 | 1670 | { |
07890c07 | 1671 | /* .bss goes after any other alloc section. */ |
390fbbf1 | 1672 | for (look = first; look; look = look->next) |
ecca9871 | 1673 | { |
d9d94ac8 | 1674 | look_flags = look->flags; |
390fbbf1 AM |
1675 | if (look->bfd_section != NULL) |
1676 | { | |
d9d94ac8 | 1677 | look_flags = look->bfd_section->flags; |
f13a99db AM |
1678 | if (match_type && !match_type (link_info.output_bfd, |
1679 | look->bfd_section, | |
390fbbf1 AM |
1680 | sec->owner, sec)) |
1681 | continue; | |
1682 | } | |
d9d94ac8 AM |
1683 | differ = look_flags ^ sec_flags; |
1684 | if (!(differ & SEC_ALLOC)) | |
390fbbf1 | 1685 | found = look; |
ecca9871 | 1686 | } |
afd7a018 | 1687 | } |
07890c07 AM |
1688 | else |
1689 | { | |
1690 | /* non-alloc go last. */ | |
1691 | for (look = first; look; look = look->next) | |
1692 | { | |
d9d94ac8 | 1693 | look_flags = look->flags; |
07890c07 | 1694 | if (look->bfd_section != NULL) |
d9d94ac8 AM |
1695 | look_flags = look->bfd_section->flags; |
1696 | differ = look_flags ^ sec_flags; | |
1697 | if (!(differ & SEC_DEBUGGING)) | |
07890c07 AM |
1698 | found = look; |
1699 | } | |
1700 | return found; | |
1701 | } | |
afd7a018 | 1702 | |
390fbbf1 AM |
1703 | if (found || !match_type) |
1704 | return found; | |
1705 | ||
93638471 | 1706 | return lang_output_section_find_by_flags (sec, sec_flags, NULL, NULL); |
afd7a018 AM |
1707 | } |
1708 | ||
1709 | /* Find the last output section before given output statement. | |
1710 | Used by place_orphan. */ | |
1711 | ||
1712 | static asection * | |
1713 | output_prev_sec_find (lang_output_section_statement_type *os) | |
1714 | { | |
afd7a018 AM |
1715 | lang_output_section_statement_type *lookup; |
1716 | ||
218868ba | 1717 | for (lookup = os->prev; lookup != NULL; lookup = lookup->prev) |
afd7a018 | 1718 | { |
66c103b7 | 1719 | if (lookup->constraint < 0) |
afd7a018 | 1720 | continue; |
afd7a018 AM |
1721 | |
1722 | if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL) | |
218868ba | 1723 | return lookup->bfd_section; |
afd7a018 AM |
1724 | } |
1725 | ||
1726 | return NULL; | |
1727 | } | |
1728 | ||
53d25da6 AM |
1729 | /* Look for a suitable place for a new output section statement. The |
1730 | idea is to skip over anything that might be inside a SECTIONS {} | |
1731 | statement in a script, before we find another output section | |
1732 | statement. Assignments to "dot" before an output section statement | |
0fa4d7cf AM |
1733 | are assumed to belong to it, except in two cases; The first |
1734 | assignment to dot, and assignments before non-alloc sections. | |
1735 | Otherwise we might put an orphan before . = . + SIZEOF_HEADERS or | |
1736 | similar assignments that set the initial address, or we might | |
1737 | insert non-alloc note sections among assignments setting end of | |
1738 | image symbols. */ | |
53d25da6 AM |
1739 | |
1740 | static lang_statement_union_type ** | |
1741 | insert_os_after (lang_output_section_statement_type *after) | |
1742 | { | |
1743 | lang_statement_union_type **where; | |
1744 | lang_statement_union_type **assign = NULL; | |
1745 | bfd_boolean ignore_first; | |
1746 | ||
1747 | ignore_first | |
1748 | = after == &lang_output_section_statement.head->output_section_statement; | |
1749 | ||
1750 | for (where = &after->header.next; | |
1751 | *where != NULL; | |
1752 | where = &(*where)->header.next) | |
1753 | { | |
1754 | switch ((*where)->header.type) | |
1755 | { | |
1756 | case lang_assignment_statement_enum: | |
1757 | if (assign == NULL) | |
1758 | { | |
1759 | lang_assignment_statement_type *ass; | |
1760 | ||
1761 | ass = &(*where)->assignment_statement; | |
1762 | if (ass->exp->type.node_class != etree_assert | |
1763 | && ass->exp->assign.dst[0] == '.' | |
1764 | && ass->exp->assign.dst[1] == 0 | |
1765 | && !ignore_first) | |
1766 | assign = where; | |
1767 | } | |
1768 | ignore_first = FALSE; | |
1769 | continue; | |
1770 | case lang_wild_statement_enum: | |
1771 | case lang_input_section_enum: | |
1772 | case lang_object_symbols_statement_enum: | |
1773 | case lang_fill_statement_enum: | |
1774 | case lang_data_statement_enum: | |
1775 | case lang_reloc_statement_enum: | |
1776 | case lang_padding_statement_enum: | |
1777 | case lang_constructors_statement_enum: | |
1778 | assign = NULL; | |
1779 | continue; | |
1780 | case lang_output_section_statement_enum: | |
1781 | if (assign != NULL) | |
0fa4d7cf AM |
1782 | { |
1783 | asection *s = (*where)->output_section_statement.bfd_section; | |
1784 | ||
249b2a84 L |
1785 | if (s == NULL |
1786 | || s->map_head.s == NULL | |
1787 | || (s->flags & SEC_ALLOC) != 0) | |
0fa4d7cf AM |
1788 | where = assign; |
1789 | } | |
53d25da6 AM |
1790 | break; |
1791 | case lang_input_statement_enum: | |
1792 | case lang_address_statement_enum: | |
1793 | case lang_target_statement_enum: | |
1794 | case lang_output_statement_enum: | |
1795 | case lang_group_statement_enum: | |
1796 | case lang_insert_statement_enum: | |
1797 | continue; | |
1798 | } | |
1799 | break; | |
1800 | } | |
1801 | ||
1802 | return where; | |
1803 | } | |
1804 | ||
afd7a018 | 1805 | lang_output_section_statement_type * |
7b986e99 | 1806 | lang_insert_orphan (asection *s, |
afd7a018 | 1807 | const char *secname, |
8a99a385 | 1808 | int constraint, |
afd7a018 AM |
1809 | lang_output_section_statement_type *after, |
1810 | struct orphan_save *place, | |
1811 | etree_type *address, | |
1812 | lang_statement_list_type *add_child) | |
1813 | { | |
afd7a018 AM |
1814 | lang_statement_list_type add; |
1815 | const char *ps; | |
321df065 | 1816 | lang_assignment_statement_type *start_assign; |
afd7a018 AM |
1817 | lang_output_section_statement_type *os; |
1818 | lang_output_section_statement_type **os_tail; | |
1819 | ||
afd7a018 AM |
1820 | /* If we have found an appropriate place for the output section |
1821 | statements for this orphan, add them to our own private list, | |
1822 | inserting them later into the global statement list. */ | |
1823 | if (after != NULL) | |
1824 | { | |
bde18da4 AM |
1825 | lang_list_init (&add); |
1826 | push_stat_ptr (&add); | |
afd7a018 AM |
1827 | } |
1828 | ||
0e1862bb L |
1829 | if (bfd_link_relocatable (&link_info) |
1830 | || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0) | |
011aa75f AM |
1831 | address = exp_intop (0); |
1832 | ||
1833 | os_tail = ((lang_output_section_statement_type **) | |
1834 | lang_output_section_statement.tail); | |
1e9cc1c2 | 1835 | os = lang_enter_output_section_statement (secname, address, normal_section, |
1eec346e | 1836 | NULL, NULL, NULL, constraint, 0); |
011aa75f | 1837 | |
afd7a018 | 1838 | ps = NULL; |
321df065 | 1839 | start_assign = NULL; |
011aa75f | 1840 | if (config.build_constructors && *os_tail == os) |
afd7a018 AM |
1841 | { |
1842 | /* If the name of the section is representable in C, then create | |
1843 | symbols to mark the start and the end of the section. */ | |
1844 | for (ps = secname; *ps != '\0'; ps++) | |
1845 | if (! ISALNUM ((unsigned char) *ps) && *ps != '_') | |
1846 | break; | |
1847 | if (*ps == '\0') | |
1848 | { | |
1849 | char *symname; | |
afd7a018 AM |
1850 | |
1851 | symname = (char *) xmalloc (ps - secname + sizeof "__start_" + 1); | |
f13a99db | 1852 | symname[0] = bfd_get_symbol_leading_char (link_info.output_bfd); |
afd7a018 | 1853 | sprintf (symname + (symname[0] != 0), "__start_%s", secname); |
321df065 AM |
1854 | start_assign |
1855 | = lang_add_assignment (exp_provide (symname, | |
1856 | exp_nameop (NAME, "."), | |
1857 | FALSE)); | |
afd7a018 AM |
1858 | } |
1859 | } | |
1860 | ||
afd7a018 AM |
1861 | if (add_child == NULL) |
1862 | add_child = &os->children; | |
b9c361e0 | 1863 | lang_add_section (add_child, s, NULL, os); |
afd7a018 | 1864 | |
f77c3948 DJ |
1865 | if (after && (s->flags & (SEC_LOAD | SEC_ALLOC)) != 0) |
1866 | { | |
1867 | const char *region = (after->region | |
1868 | ? after->region->name_list.name | |
1869 | : DEFAULT_MEMORY_REGION); | |
1870 | const char *lma_region = (after->lma_region | |
1871 | ? after->lma_region->name_list.name | |
1872 | : NULL); | |
1873 | lang_leave_output_section_statement (NULL, region, after->phdrs, | |
1874 | lma_region); | |
1875 | } | |
1876 | else | |
1877 | lang_leave_output_section_statement (NULL, DEFAULT_MEMORY_REGION, NULL, | |
1878 | NULL); | |
afd7a018 | 1879 | |
321df065 | 1880 | if (start_assign != NULL) |
afd7a018 AM |
1881 | { |
1882 | char *symname; | |
321df065 AM |
1883 | lang_assignment_statement_type *stop_assign; |
1884 | bfd_vma dot; | |
afd7a018 | 1885 | |
afd7a018 | 1886 | symname = (char *) xmalloc (ps - secname + sizeof "__stop_" + 1); |
f13a99db | 1887 | symname[0] = bfd_get_symbol_leading_char (link_info.output_bfd); |
afd7a018 | 1888 | sprintf (symname + (symname[0] != 0), "__stop_%s", secname); |
321df065 AM |
1889 | stop_assign |
1890 | = lang_add_assignment (exp_provide (symname, | |
1891 | exp_nameop (NAME, "."), | |
1892 | FALSE)); | |
1893 | /* Evaluate the expression to define the symbol if referenced, | |
1894 | before sizing dynamic sections. */ | |
1895 | dot = os->bfd_section->vma; | |
1896 | exp_fold_tree (start_assign->exp, os->bfd_section, &dot); | |
fc90c280 | 1897 | dot += TO_ADDR (s->size); |
321df065 | 1898 | exp_fold_tree (stop_assign->exp, os->bfd_section, &dot); |
afd7a018 AM |
1899 | } |
1900 | ||
1901 | /* Restore the global list pointer. */ | |
1902 | if (after != NULL) | |
bde18da4 | 1903 | pop_stat_ptr (); |
afd7a018 AM |
1904 | |
1905 | if (after != NULL && os->bfd_section != NULL) | |
1906 | { | |
5daa8fe7 | 1907 | asection *snew, *as; |
afd7a018 AM |
1908 | |
1909 | snew = os->bfd_section; | |
1910 | ||
1911 | /* Shuffle the bfd section list to make the output file look | |
1912 | neater. This is really only cosmetic. */ | |
1913 | if (place->section == NULL | |
1914 | && after != (&lang_output_section_statement.head | |
1915 | ->output_section_statement)) | |
1916 | { | |
1917 | asection *bfd_section = after->bfd_section; | |
1918 | ||
1919 | /* If the output statement hasn't been used to place any input | |
1920 | sections (and thus doesn't have an output bfd_section), | |
1921 | look for the closest prior output statement having an | |
1922 | output section. */ | |
1923 | if (bfd_section == NULL) | |
1924 | bfd_section = output_prev_sec_find (after); | |
1925 | ||
1926 | if (bfd_section != NULL && bfd_section != snew) | |
1927 | place->section = &bfd_section->next; | |
1928 | } | |
1929 | ||
1930 | if (place->section == NULL) | |
f13a99db | 1931 | place->section = &link_info.output_bfd->sections; |
afd7a018 | 1932 | |
5daa8fe7 | 1933 | as = *place->section; |
5e542ba7 MS |
1934 | |
1935 | if (!as) | |
329c1c86 AM |
1936 | { |
1937 | /* Put the section at the end of the list. */ | |
5e542ba7 MS |
1938 | |
1939 | /* Unlink the section. */ | |
f13a99db | 1940 | bfd_section_list_remove (link_info.output_bfd, snew); |
5e542ba7 MS |
1941 | |
1942 | /* Now tack it back on in the right place. */ | |
f13a99db | 1943 | bfd_section_list_append (link_info.output_bfd, snew); |
329c1c86 | 1944 | } |
5e542ba7 | 1945 | else if (as != snew && as->prev != snew) |
5daa8fe7 L |
1946 | { |
1947 | /* Unlink the section. */ | |
f13a99db | 1948 | bfd_section_list_remove (link_info.output_bfd, snew); |
afd7a018 | 1949 | |
5daa8fe7 | 1950 | /* Now tack it back on in the right place. */ |
f13a99db | 1951 | bfd_section_list_insert_before (link_info.output_bfd, as, snew); |
5daa8fe7 | 1952 | } |
afd7a018 AM |
1953 | |
1954 | /* Save the end of this list. Further ophans of this type will | |
1955 | follow the one we've just added. */ | |
1956 | place->section = &snew->next; | |
1957 | ||
1958 | /* The following is non-cosmetic. We try to put the output | |
1959 | statements in some sort of reasonable order here, because they | |
1960 | determine the final load addresses of the orphan sections. | |
1961 | In addition, placing output statements in the wrong order may | |
1962 | require extra segments. For instance, given a typical | |
1963 | situation of all read-only sections placed in one segment and | |
1964 | following that a segment containing all the read-write | |
1965 | sections, we wouldn't want to place an orphan read/write | |
1966 | section before or amongst the read-only ones. */ | |
1967 | if (add.head != NULL) | |
1968 | { | |
1969 | lang_output_section_statement_type *newly_added_os; | |
1970 | ||
1971 | if (place->stmt == NULL) | |
1972 | { | |
53d25da6 | 1973 | lang_statement_union_type **where = insert_os_after (after); |
afd7a018 AM |
1974 | |
1975 | *add.tail = *where; | |
1976 | *where = add.head; | |
1977 | ||
1978 | place->os_tail = &after->next; | |
1979 | } | |
1980 | else | |
1981 | { | |
1982 | /* Put it after the last orphan statement we added. */ | |
1983 | *add.tail = *place->stmt; | |
1984 | *place->stmt = add.head; | |
1985 | } | |
1986 | ||
1987 | /* Fix the global list pointer if we happened to tack our | |
1988 | new list at the tail. */ | |
bde18da4 AM |
1989 | if (*stat_ptr->tail == add.head) |
1990 | stat_ptr->tail = add.tail; | |
afd7a018 AM |
1991 | |
1992 | /* Save the end of this list. */ | |
1993 | place->stmt = add.tail; | |
1994 | ||
1995 | /* Do the same for the list of output section statements. */ | |
1996 | newly_added_os = *os_tail; | |
1997 | *os_tail = NULL; | |
218868ba AM |
1998 | newly_added_os->prev = (lang_output_section_statement_type *) |
1999 | ((char *) place->os_tail | |
2000 | - offsetof (lang_output_section_statement_type, next)); | |
afd7a018 | 2001 | newly_added_os->next = *place->os_tail; |
218868ba AM |
2002 | if (newly_added_os->next != NULL) |
2003 | newly_added_os->next->prev = newly_added_os; | |
afd7a018 AM |
2004 | *place->os_tail = newly_added_os; |
2005 | place->os_tail = &newly_added_os->next; | |
2006 | ||
2007 | /* Fixing the global list pointer here is a little different. | |
2008 | We added to the list in lang_enter_output_section_statement, | |
2009 | trimmed off the new output_section_statment above when | |
2010 | assigning *os_tail = NULL, but possibly added it back in | |
2011 | the same place when assigning *place->os_tail. */ | |
2012 | if (*os_tail == NULL) | |
2013 | lang_output_section_statement.tail | |
2014 | = (lang_statement_union_type **) os_tail; | |
2015 | } | |
2016 | } | |
2017 | return os; | |
2018 | } | |
2019 | ||
16e4ecc0 AM |
2020 | static void |
2021 | lang_print_asneeded (void) | |
2022 | { | |
2023 | struct asneeded_minfo *m; | |
2024 | char buf[100]; | |
2025 | ||
2026 | if (asneeded_list_head == NULL) | |
2027 | return; | |
2028 | ||
2029 | sprintf (buf, _("\nAs-needed library included " | |
2030 | "to satisfy reference by file (symbol)\n\n")); | |
2031 | minfo ("%s", buf); | |
2032 | ||
2033 | for (m = asneeded_list_head; m != NULL; m = m->next) | |
2034 | { | |
2035 | size_t len; | |
2036 | ||
2037 | minfo ("%s", m->soname); | |
2038 | len = strlen (m->soname); | |
2039 | ||
2040 | if (len >= 29) | |
2041 | { | |
2042 | print_nl (); | |
2043 | len = 0; | |
2044 | } | |
2045 | while (len < 30) | |
2046 | { | |
2047 | print_space (); | |
2048 | ++len; | |
2049 | } | |
2050 | ||
2051 | if (m->ref != NULL) | |
2052 | minfo ("%B ", m->ref); | |
2053 | minfo ("(%T)\n", m->name); | |
2054 | } | |
2055 | } | |
2056 | ||
252b5132 | 2057 | static void |
1579bae1 | 2058 | lang_map_flags (flagword flag) |
252b5132 RH |
2059 | { |
2060 | if (flag & SEC_ALLOC) | |
2061 | minfo ("a"); | |
2062 | ||
2063 | if (flag & SEC_CODE) | |
2064 | minfo ("x"); | |
2065 | ||
2066 | if (flag & SEC_READONLY) | |
2067 | minfo ("r"); | |
2068 | ||
2069 | if (flag & SEC_DATA) | |
2070 | minfo ("w"); | |
2071 | ||
2072 | if (flag & SEC_LOAD) | |
2073 | minfo ("l"); | |
2074 | } | |
2075 | ||
2076 | void | |
1579bae1 | 2077 | lang_map (void) |
252b5132 RH |
2078 | { |
2079 | lang_memory_region_type *m; | |
4d4920ec | 2080 | bfd_boolean dis_header_printed = FALSE; |
252b5132 | 2081 | |
4d4920ec EB |
2082 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
2083 | { | |
2084 | asection *s; | |
2085 | ||
2086 | if ((file->the_bfd->flags & (BFD_LINKER_CREATED | DYNAMIC)) != 0 | |
66be1055 | 2087 | || file->flags.just_syms) |
4d4920ec EB |
2088 | continue; |
2089 | ||
2090 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
a14a5de3 | 2091 | if ((s->output_section == NULL |
f13a99db | 2092 | || s->output_section->owner != link_info.output_bfd) |
a14a5de3 | 2093 | && (s->flags & (SEC_LINKER_CREATED | SEC_KEEP)) == 0) |
4d4920ec EB |
2094 | { |
2095 | if (! dis_header_printed) | |
2096 | { | |
2097 | fprintf (config.map_file, _("\nDiscarded input sections\n\n")); | |
2098 | dis_header_printed = TRUE; | |
2099 | } | |
2100 | ||
d64703c6 | 2101 | print_input_section (s, TRUE); |
4d4920ec EB |
2102 | } |
2103 | } | |
2104 | ||
252b5132 RH |
2105 | minfo (_("\nMemory Configuration\n\n")); |
2106 | fprintf (config.map_file, "%-16s %-18s %-18s %s\n", | |
2107 | _("Name"), _("Origin"), _("Length"), _("Attributes")); | |
2108 | ||
1579bae1 | 2109 | for (m = lang_memory_region_list; m != NULL; m = m->next) |
252b5132 RH |
2110 | { |
2111 | char buf[100]; | |
2112 | int len; | |
2113 | ||
4a93e180 | 2114 | fprintf (config.map_file, "%-16s ", m->name_list.name); |
252b5132 RH |
2115 | |
2116 | sprintf_vma (buf, m->origin); | |
2117 | minfo ("0x%s ", buf); | |
2118 | len = strlen (buf); | |
2119 | while (len < 16) | |
2120 | { | |
2121 | print_space (); | |
2122 | ++len; | |
2123 | } | |
2124 | ||
2125 | minfo ("0x%V", m->length); | |
2126 | if (m->flags || m->not_flags) | |
2127 | { | |
2128 | #ifndef BFD64 | |
2129 | minfo (" "); | |
2130 | #endif | |
2131 | if (m->flags) | |
2132 | { | |
2133 | print_space (); | |
2134 | lang_map_flags (m->flags); | |
2135 | } | |
2136 | ||
2137 | if (m->not_flags) | |
2138 | { | |
2139 | minfo (" !"); | |
2140 | lang_map_flags (m->not_flags); | |
2141 | } | |
2142 | } | |
2143 | ||
2144 | print_nl (); | |
2145 | } | |
2146 | ||
2147 | fprintf (config.map_file, _("\nLinker script and memory map\n\n")); | |
2148 | ||
c0f00686 | 2149 | if (! link_info.reduce_memory_overheads) |
35835446 JR |
2150 | { |
2151 | obstack_begin (&map_obstack, 1000); | |
35835446 JR |
2152 | bfd_link_hash_traverse (link_info.hash, sort_def_symbol, 0); |
2153 | } | |
fa72205c | 2154 | lang_statement_iteration++; |
252b5132 | 2155 | print_statements (); |
7a2f2d82 DD |
2156 | |
2157 | ldemul_extra_map_file_text (link_info.output_bfd, &link_info, config.map_file); | |
252b5132 RH |
2158 | } |
2159 | ||
35835446 | 2160 | static bfd_boolean |
967928e9 AM |
2161 | sort_def_symbol (struct bfd_link_hash_entry *hash_entry, |
2162 | void *info ATTRIBUTE_UNUSED) | |
35835446 | 2163 | { |
6fcc66ab AM |
2164 | if ((hash_entry->type == bfd_link_hash_defined |
2165 | || hash_entry->type == bfd_link_hash_defweak) | |
2166 | && hash_entry->u.def.section->owner != link_info.output_bfd | |
2167 | && hash_entry->u.def.section->owner != NULL) | |
35835446 | 2168 | { |
6fcc66ab | 2169 | input_section_userdata_type *ud; |
35835446 JR |
2170 | struct map_symbol_def *def; |
2171 | ||
6fcc66ab AM |
2172 | ud = ((input_section_userdata_type *) |
2173 | get_userdata (hash_entry->u.def.section)); | |
2174 | if (!ud) | |
35835446 | 2175 | { |
6fcc66ab AM |
2176 | ud = (input_section_userdata_type *) stat_alloc (sizeof (*ud)); |
2177 | get_userdata (hash_entry->u.def.section) = ud; | |
2178 | ud->map_symbol_def_tail = &ud->map_symbol_def_head; | |
2179 | ud->map_symbol_def_count = 0; | |
35835446 | 2180 | } |
6fcc66ab | 2181 | else if (!ud->map_symbol_def_tail) |
35835446 | 2182 | ud->map_symbol_def_tail = &ud->map_symbol_def_head; |
afd7a018 | 2183 | |
1e9cc1c2 | 2184 | def = (struct map_symbol_def *) obstack_alloc (&map_obstack, sizeof *def); |
35835446 | 2185 | def->entry = hash_entry; |
76d7af2d | 2186 | *(ud->map_symbol_def_tail) = def; |
35835446 | 2187 | ud->map_symbol_def_tail = &def->next; |
02688209 | 2188 | ud->map_symbol_def_count++; |
35835446 JR |
2189 | } |
2190 | return TRUE; | |
2191 | } | |
2192 | ||
252b5132 RH |
2193 | /* Initialize an output section. */ |
2194 | ||
2195 | static void | |
dfa7b0b8 | 2196 | init_os (lang_output_section_statement_type *s, flagword flags) |
252b5132 | 2197 | { |
252b5132 | 2198 | if (strcmp (s->name, DISCARD_SECTION_NAME) == 0) |
6f9efd97 | 2199 | einfo (_("%P%F: Illegal use of `%s' section\n"), DISCARD_SECTION_NAME); |
252b5132 | 2200 | |
8a99a385 AM |
2201 | if (s->constraint != SPECIAL) |
2202 | s->bfd_section = bfd_get_section_by_name (link_info.output_bfd, s->name); | |
1579bae1 | 2203 | if (s->bfd_section == NULL) |
8a99a385 AM |
2204 | s->bfd_section = bfd_make_section_anyway_with_flags (link_info.output_bfd, |
2205 | s->name, flags); | |
1579bae1 | 2206 | if (s->bfd_section == NULL) |
252b5132 RH |
2207 | { |
2208 | einfo (_("%P%F: output format %s cannot represent section called %s\n"), | |
f13a99db | 2209 | link_info.output_bfd->xvec->name, s->name); |
252b5132 RH |
2210 | } |
2211 | s->bfd_section->output_section = s->bfd_section; | |
252b5132 | 2212 | s->bfd_section->output_offset = 0; |
e0f6802f | 2213 | |
24ef1aa7 GM |
2214 | /* Set the userdata of the output section to the output section |
2215 | statement to avoid lookup. */ | |
2216 | get_userdata (s->bfd_section) = s; | |
2217 | ||
a431bc2e AM |
2218 | /* If there is a base address, make sure that any sections it might |
2219 | mention are initialized. */ | |
2220 | if (s->addr_tree != NULL) | |
2221 | exp_init_os (s->addr_tree); | |
2222 | ||
2223 | if (s->load_base != NULL) | |
2224 | exp_init_os (s->load_base); | |
2225 | ||
7270c5ed AM |
2226 | /* If supplied an alignment, set it. */ |
2227 | if (s->section_alignment != -1) | |
2228 | s->bfd_section->alignment_power = s->section_alignment; | |
252b5132 RH |
2229 | } |
2230 | ||
2231 | /* Make sure that all output sections mentioned in an expression are | |
2232 | initialized. */ | |
2233 | ||
2234 | static void | |
1579bae1 | 2235 | exp_init_os (etree_type *exp) |
252b5132 RH |
2236 | { |
2237 | switch (exp->type.node_class) | |
2238 | { | |
2239 | case etree_assign: | |
9f4fb502 | 2240 | case etree_provide: |
252b5132 RH |
2241 | exp_init_os (exp->assign.src); |
2242 | break; | |
2243 | ||
2244 | case etree_binary: | |
2245 | exp_init_os (exp->binary.lhs); | |
2246 | exp_init_os (exp->binary.rhs); | |
2247 | break; | |
2248 | ||
2249 | case etree_trinary: | |
2250 | exp_init_os (exp->trinary.cond); | |
2251 | exp_init_os (exp->trinary.lhs); | |
2252 | exp_init_os (exp->trinary.rhs); | |
2253 | break; | |
2254 | ||
b6ca8815 NS |
2255 | case etree_assert: |
2256 | exp_init_os (exp->assert_s.child); | |
2257 | break; | |
afd7a018 | 2258 | |
252b5132 RH |
2259 | case etree_unary: |
2260 | exp_init_os (exp->unary.child); | |
2261 | break; | |
2262 | ||
2263 | case etree_name: | |
2264 | switch (exp->type.node_code) | |
2265 | { | |
2266 | case ADDR: | |
2267 | case LOADADDR: | |
2268 | case SIZEOF: | |
2269 | { | |
2270 | lang_output_section_statement_type *os; | |
2271 | ||
2272 | os = lang_output_section_find (exp->name.name); | |
2273 | if (os != NULL && os->bfd_section == NULL) | |
dfa7b0b8 | 2274 | init_os (os, 0); |
252b5132 RH |
2275 | } |
2276 | } | |
2277 | break; | |
2278 | ||
2279 | default: | |
2280 | break; | |
2281 | } | |
2282 | } | |
9503fd87 | 2283 | \f |
252b5132 | 2284 | static void |
1579bae1 | 2285 | section_already_linked (bfd *abfd, asection *sec, void *data) |
252b5132 | 2286 | { |
1e9cc1c2 | 2287 | lang_input_statement_type *entry = (lang_input_statement_type *) data; |
252b5132 RH |
2288 | |
2289 | /* If we are only reading symbols from this object, then we want to | |
2290 | discard all sections. */ | |
66be1055 | 2291 | if (entry->flags.just_syms) |
252b5132 | 2292 | { |
1449d79b | 2293 | bfd_link_just_syms (abfd, sec, &link_info); |
252b5132 RH |
2294 | return; |
2295 | } | |
2296 | ||
ace66bb2 | 2297 | if (!(abfd->flags & DYNAMIC)) |
c77ec726 | 2298 | bfd_section_already_linked (abfd, sec, &link_info); |
252b5132 RH |
2299 | } |
2300 | \f | |
2301 | /* The wild routines. | |
2302 | ||
2303 | These expand statements like *(.text) and foo.o to a list of | |
2304 | explicit actions, like foo.o(.text), bar.o(.text) and | |
2305 | foo.o(.text, .data). */ | |
2306 | ||
252b5132 | 2307 | /* Add SECTION to the output section OUTPUT. Do this by creating a |
b9c361e0 | 2308 | lang_input_section statement which is placed at PTR. */ |
252b5132 RH |
2309 | |
2310 | void | |
1579bae1 AM |
2311 | lang_add_section (lang_statement_list_type *ptr, |
2312 | asection *section, | |
b9c361e0 | 2313 | struct flag_info *sflag_info, |
7b986e99 | 2314 | lang_output_section_statement_type *output) |
252b5132 | 2315 | { |
164e712d | 2316 | flagword flags = section->flags; |
ae17ab41 | 2317 | |
b34976b6 | 2318 | bfd_boolean discard; |
dfa7b0b8 | 2319 | lang_input_section_type *new_section; |
ae17ab41 | 2320 | bfd *abfd = link_info.output_bfd; |
252b5132 | 2321 | |
e49f5022 | 2322 | /* Discard sections marked with SEC_EXCLUDE. */ |
b3096250 | 2323 | discard = (flags & SEC_EXCLUDE) != 0; |
252b5132 RH |
2324 | |
2325 | /* Discard input sections which are assigned to a section named | |
2326 | DISCARD_SECTION_NAME. */ | |
2327 | if (strcmp (output->name, DISCARD_SECTION_NAME) == 0) | |
b34976b6 | 2328 | discard = TRUE; |
252b5132 RH |
2329 | |
2330 | /* Discard debugging sections if we are stripping debugging | |
2331 | information. */ | |
2332 | if ((link_info.strip == strip_debugger || link_info.strip == strip_all) | |
2333 | && (flags & SEC_DEBUGGING) != 0) | |
b34976b6 | 2334 | discard = TRUE; |
252b5132 RH |
2335 | |
2336 | if (discard) | |
2337 | { | |
2338 | if (section->output_section == NULL) | |
2339 | { | |
2340 | /* This prevents future calls from assigning this section. */ | |
2341 | section->output_section = bfd_abs_section_ptr; | |
2342 | } | |
2343 | return; | |
2344 | } | |
2345 | ||
ae17ab41 CM |
2346 | if (sflag_info) |
2347 | { | |
b9c361e0 | 2348 | bfd_boolean keep; |
ae17ab41 | 2349 | |
b9c361e0 JL |
2350 | keep = bfd_lookup_section_flags (&link_info, sflag_info, section); |
2351 | if (!keep) | |
4724d37e | 2352 | return; |
ae17ab41 CM |
2353 | } |
2354 | ||
dfa7b0b8 AM |
2355 | if (section->output_section != NULL) |
2356 | return; | |
252b5132 | 2357 | |
dfa7b0b8 AM |
2358 | /* We don't copy the SEC_NEVER_LOAD flag from an input section |
2359 | to an output section, because we want to be able to include a | |
2360 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
2361 | section (I don't know why we want to do this, but we do). | |
2362 | build_link_order in ldwrite.c handles this case by turning | |
2363 | the embedded SEC_NEVER_LOAD section into a fill. */ | |
2364 | flags &= ~ SEC_NEVER_LOAD; | |
8423293d | 2365 | |
dfa7b0b8 AM |
2366 | /* If final link, don't copy the SEC_LINK_ONCE flags, they've |
2367 | already been processed. One reason to do this is that on pe | |
2368 | format targets, .text$foo sections go into .text and it's odd | |
2369 | to see .text with SEC_LINK_ONCE set. */ | |
252b5132 | 2370 | |
0e1862bb | 2371 | if (!bfd_link_relocatable (&link_info)) |
0814be7d | 2372 | flags &= ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC); |
252b5132 | 2373 | |
dfa7b0b8 AM |
2374 | switch (output->sectype) |
2375 | { | |
2376 | case normal_section: | |
2377 | case overlay_section: | |
2378 | break; | |
2379 | case noalloc_section: | |
2380 | flags &= ~SEC_ALLOC; | |
2381 | break; | |
2382 | case noload_section: | |
2383 | flags &= ~SEC_LOAD; | |
2384 | flags |= SEC_NEVER_LOAD; | |
f4eaaf7f AM |
2385 | /* Unfortunately GNU ld has managed to evolve two different |
2386 | meanings to NOLOAD in scripts. ELF gets a .bss style noload, | |
2387 | alloc, no contents section. All others get a noload, noalloc | |
2388 | section. */ | |
2389 | if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour) | |
2e76e85a | 2390 | flags &= ~SEC_HAS_CONTENTS; |
f4eaaf7f AM |
2391 | else |
2392 | flags &= ~SEC_ALLOC; | |
dfa7b0b8 AM |
2393 | break; |
2394 | } | |
252b5132 | 2395 | |
dfa7b0b8 AM |
2396 | if (output->bfd_section == NULL) |
2397 | init_os (output, flags); | |
252b5132 | 2398 | |
dfa7b0b8 AM |
2399 | /* If SEC_READONLY is not set in the input section, then clear |
2400 | it from the output section. */ | |
2401 | output->bfd_section->flags &= flags | ~SEC_READONLY; | |
252b5132 | 2402 | |
dfa7b0b8 AM |
2403 | if (output->bfd_section->linker_has_input) |
2404 | { | |
2405 | /* Only set SEC_READONLY flag on the first input section. */ | |
2406 | flags &= ~ SEC_READONLY; | |
252b5132 | 2407 | |
f5fa8ca2 | 2408 | /* Keep SEC_MERGE and SEC_STRINGS only if they are the same. */ |
dfa7b0b8 AM |
2409 | if ((output->bfd_section->flags & (SEC_MERGE | SEC_STRINGS)) |
2410 | != (flags & (SEC_MERGE | SEC_STRINGS)) | |
2411 | || ((flags & SEC_MERGE) != 0 | |
2412 | && output->bfd_section->entsize != section->entsize)) | |
f5fa8ca2 | 2413 | { |
afd7a018 | 2414 | output->bfd_section->flags &= ~ (SEC_MERGE | SEC_STRINGS); |
f5fa8ca2 JJ |
2415 | flags &= ~ (SEC_MERGE | SEC_STRINGS); |
2416 | } | |
dfa7b0b8 AM |
2417 | } |
2418 | output->bfd_section->flags |= flags; | |
f5fa8ca2 | 2419 | |
dfa7b0b8 AM |
2420 | if (!output->bfd_section->linker_has_input) |
2421 | { | |
2422 | output->bfd_section->linker_has_input = 1; | |
2423 | /* This must happen after flags have been updated. The output | |
2424 | section may have been created before we saw its first input | |
2425 | section, eg. for a data statement. */ | |
2426 | bfd_init_private_section_data (section->owner, section, | |
2427 | link_info.output_bfd, | |
2428 | output->bfd_section, | |
2429 | &link_info); | |
2430 | if ((flags & SEC_MERGE) != 0) | |
afd7a018 | 2431 | output->bfd_section->entsize = section->entsize; |
dfa7b0b8 | 2432 | } |
f5fa8ca2 | 2433 | |
dfa7b0b8 AM |
2434 | if ((flags & SEC_TIC54X_BLOCK) != 0 |
2435 | && bfd_get_arch (section->owner) == bfd_arch_tic54x) | |
2436 | { | |
2437 | /* FIXME: This value should really be obtained from the bfd... */ | |
2438 | output->block_value = 128; | |
2439 | } | |
252b5132 | 2440 | |
dfa7b0b8 AM |
2441 | if (section->alignment_power > output->bfd_section->alignment_power) |
2442 | output->bfd_section->alignment_power = section->alignment_power; | |
9e41f973 | 2443 | |
dfa7b0b8 | 2444 | section->output_section = output->bfd_section; |
252b5132 | 2445 | |
5b69e357 | 2446 | if (!map_head_is_link_order) |
dfa7b0b8 AM |
2447 | { |
2448 | asection *s = output->bfd_section->map_tail.s; | |
2449 | output->bfd_section->map_tail.s = section; | |
2450 | section->map_head.s = NULL; | |
2451 | section->map_tail.s = s; | |
2452 | if (s != NULL) | |
2453 | s->map_head.s = section; | |
2454 | else | |
2455 | output->bfd_section->map_head.s = section; | |
252b5132 | 2456 | } |
dfa7b0b8 AM |
2457 | |
2458 | /* Add a section reference to the list. */ | |
2459 | new_section = new_stat (lang_input_section, ptr); | |
2460 | new_section->section = section; | |
252b5132 RH |
2461 | } |
2462 | ||
2463 | /* Handle wildcard sorting. This returns the lang_input_section which | |
2464 | should follow the one we are going to create for SECTION and FILE, | |
2465 | based on the sorting requirements of WILD. It returns NULL if the | |
2466 | new section should just go at the end of the current list. */ | |
2467 | ||
2468 | static lang_statement_union_type * | |
1579bae1 AM |
2469 | wild_sort (lang_wild_statement_type *wild, |
2470 | struct wildcard_list *sec, | |
2471 | lang_input_statement_type *file, | |
2472 | asection *section) | |
252b5132 | 2473 | { |
252b5132 RH |
2474 | lang_statement_union_type *l; |
2475 | ||
bcaa7b3e L |
2476 | if (!wild->filenames_sorted |
2477 | && (sec == NULL || sec->spec.sorted == none)) | |
252b5132 RH |
2478 | return NULL; |
2479 | ||
bba1a0c0 | 2480 | for (l = wild->children.head; l != NULL; l = l->header.next) |
252b5132 RH |
2481 | { |
2482 | lang_input_section_type *ls; | |
2483 | ||
2484 | if (l->header.type != lang_input_section_enum) | |
2485 | continue; | |
2486 | ls = &l->input_section; | |
2487 | ||
2488 | /* Sorting by filename takes precedence over sorting by section | |
afd7a018 | 2489 | name. */ |
252b5132 RH |
2490 | |
2491 | if (wild->filenames_sorted) | |
2492 | { | |
2493 | const char *fn, *ln; | |
b34976b6 | 2494 | bfd_boolean fa, la; |
252b5132 RH |
2495 | int i; |
2496 | ||
2497 | /* The PE support for the .idata section as generated by | |
afd7a018 AM |
2498 | dlltool assumes that files will be sorted by the name of |
2499 | the archive and then the name of the file within the | |
2500 | archive. */ | |
252b5132 RH |
2501 | |
2502 | if (file->the_bfd != NULL | |
2503 | && bfd_my_archive (file->the_bfd) != NULL) | |
2504 | { | |
2505 | fn = bfd_get_filename (bfd_my_archive (file->the_bfd)); | |
b34976b6 | 2506 | fa = TRUE; |
252b5132 RH |
2507 | } |
2508 | else | |
2509 | { | |
2510 | fn = file->filename; | |
b34976b6 | 2511 | fa = FALSE; |
252b5132 RH |
2512 | } |
2513 | ||
7b986e99 | 2514 | if (bfd_my_archive (ls->section->owner) != NULL) |
252b5132 | 2515 | { |
7b986e99 | 2516 | ln = bfd_get_filename (bfd_my_archive (ls->section->owner)); |
b34976b6 | 2517 | la = TRUE; |
252b5132 RH |
2518 | } |
2519 | else | |
2520 | { | |
7b986e99 | 2521 | ln = ls->section->owner->filename; |
b34976b6 | 2522 | la = FALSE; |
252b5132 RH |
2523 | } |
2524 | ||
42627821 | 2525 | i = filename_cmp (fn, ln); |
252b5132 RH |
2526 | if (i > 0) |
2527 | continue; | |
2528 | else if (i < 0) | |
2529 | break; | |
2530 | ||
2531 | if (fa || la) | |
2532 | { | |
2533 | if (fa) | |
2534 | fn = file->filename; | |
2535 | if (la) | |
7b986e99 | 2536 | ln = ls->section->owner->filename; |
252b5132 | 2537 | |
42627821 | 2538 | i = filename_cmp (fn, ln); |
252b5132 RH |
2539 | if (i > 0) |
2540 | continue; | |
2541 | else if (i < 0) | |
2542 | break; | |
2543 | } | |
2544 | } | |
2545 | ||
2546 | /* Here either the files are not sorted by name, or we are | |
afd7a018 | 2547 | looking at the sections for this file. */ |
252b5132 | 2548 | |
b2e4da5a L |
2549 | if (sec != NULL |
2550 | && sec->spec.sorted != none | |
2551 | && sec->spec.sorted != by_none) | |
32124d5b AM |
2552 | if (compare_section (sec->spec.sorted, section, ls->section) < 0) |
2553 | break; | |
252b5132 RH |
2554 | } |
2555 | ||
2556 | return l; | |
2557 | } | |
2558 | ||
2559 | /* Expand a wild statement for a particular FILE. SECTION may be | |
2560 | NULL, in which case it is a wild card. */ | |
2561 | ||
2562 | static void | |
1579bae1 AM |
2563 | output_section_callback (lang_wild_statement_type *ptr, |
2564 | struct wildcard_list *sec, | |
2565 | asection *section, | |
b9c361e0 | 2566 | struct flag_info *sflag_info, |
1579bae1 AM |
2567 | lang_input_statement_type *file, |
2568 | void *output) | |
4dec4d4e RH |
2569 | { |
2570 | lang_statement_union_type *before; | |
d0bf826b AM |
2571 | lang_output_section_statement_type *os; |
2572 | ||
2573 | os = (lang_output_section_statement_type *) output; | |
5f992e62 | 2574 | |
b6bf44ba | 2575 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
d0bf826b | 2576 | if (unique_section_p (section, os)) |
b6bf44ba AM |
2577 | return; |
2578 | ||
b6bf44ba | 2579 | before = wild_sort (ptr, sec, file, section); |
5f992e62 | 2580 | |
4dec4d4e RH |
2581 | /* Here BEFORE points to the lang_input_section which |
2582 | should follow the one we are about to add. If BEFORE | |
2583 | is NULL, then the section should just go at the end | |
2584 | of the current list. */ | |
5f992e62 | 2585 | |
4dec4d4e | 2586 | if (before == NULL) |
b9c361e0 | 2587 | lang_add_section (&ptr->children, section, sflag_info, os); |
4dec4d4e | 2588 | else |
252b5132 | 2589 | { |
4dec4d4e RH |
2590 | lang_statement_list_type list; |
2591 | lang_statement_union_type **pp; | |
5f992e62 | 2592 | |
4dec4d4e | 2593 | lang_list_init (&list); |
b9c361e0 | 2594 | lang_add_section (&list, section, sflag_info, os); |
5f992e62 | 2595 | |
4dec4d4e RH |
2596 | /* If we are discarding the section, LIST.HEAD will |
2597 | be NULL. */ | |
2598 | if (list.head != NULL) | |
252b5132 | 2599 | { |
bba1a0c0 | 2600 | ASSERT (list.head->header.next == NULL); |
5f992e62 | 2601 | |
4dec4d4e RH |
2602 | for (pp = &ptr->children.head; |
2603 | *pp != before; | |
bba1a0c0 | 2604 | pp = &(*pp)->header.next) |
4dec4d4e | 2605 | ASSERT (*pp != NULL); |
5f992e62 | 2606 | |
bba1a0c0 | 2607 | list.head->header.next = *pp; |
4dec4d4e | 2608 | *pp = list.head; |
252b5132 RH |
2609 | } |
2610 | } | |
2611 | } | |
2612 | ||
0841712e JJ |
2613 | /* Check if all sections in a wild statement for a particular FILE |
2614 | are readonly. */ | |
2615 | ||
2616 | static void | |
2617 | check_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED, | |
2618 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
2619 | asection *section, | |
b9c361e0 | 2620 | struct flag_info *sflag_info ATTRIBUTE_UNUSED, |
0841712e | 2621 | lang_input_statement_type *file ATTRIBUTE_UNUSED, |
d0bf826b | 2622 | void *output) |
0841712e | 2623 | { |
d0bf826b AM |
2624 | lang_output_section_statement_type *os; |
2625 | ||
2626 | os = (lang_output_section_statement_type *) output; | |
2627 | ||
0841712e | 2628 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
d0bf826b | 2629 | if (unique_section_p (section, os)) |
0841712e JJ |
2630 | return; |
2631 | ||
6feb9908 | 2632 | if (section->output_section == NULL && (section->flags & SEC_READONLY) == 0) |
d0bf826b | 2633 | os->all_input_readonly = FALSE; |
0841712e JJ |
2634 | } |
2635 | ||
252b5132 RH |
2636 | /* This is passed a file name which must have been seen already and |
2637 | added to the statement tree. We will see if it has been opened | |
2638 | already and had its symbols read. If not then we'll read it. */ | |
2639 | ||
2640 | static lang_input_statement_type * | |
1579bae1 | 2641 | lookup_name (const char *name) |
252b5132 RH |
2642 | { |
2643 | lang_input_statement_type *search; | |
2644 | ||
2645 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
1579bae1 | 2646 | search != NULL; |
252b5132 RH |
2647 | search = (lang_input_statement_type *) search->next_real_file) |
2648 | { | |
0013291d NC |
2649 | /* Use the local_sym_name as the name of the file that has |
2650 | already been loaded as filename might have been transformed | |
2651 | via the search directory lookup mechanism. */ | |
87aa7f19 | 2652 | const char *filename = search->local_sym_name; |
0013291d | 2653 | |
0013291d | 2654 | if (filename != NULL |
42627821 | 2655 | && filename_cmp (filename, name) == 0) |
252b5132 RH |
2656 | break; |
2657 | } | |
2658 | ||
1579bae1 | 2659 | if (search == NULL) |
6feb9908 AM |
2660 | search = new_afile (name, lang_input_file_is_search_file_enum, |
2661 | default_target, FALSE); | |
252b5132 RH |
2662 | |
2663 | /* If we have already added this file, or this file is not real | |
87aa7f19 | 2664 | don't add this file. */ |
66be1055 | 2665 | if (search->flags.loaded || !search->flags.real) |
252b5132 RH |
2666 | return search; |
2667 | ||
1579bae1 | 2668 | if (! load_symbols (search, NULL)) |
6770ec8c | 2669 | return NULL; |
252b5132 RH |
2670 | |
2671 | return search; | |
2672 | } | |
2673 | ||
b58f81ae DJ |
2674 | /* Save LIST as a list of libraries whose symbols should not be exported. */ |
2675 | ||
2676 | struct excluded_lib | |
2677 | { | |
2678 | char *name; | |
2679 | struct excluded_lib *next; | |
2680 | }; | |
2681 | static struct excluded_lib *excluded_libs; | |
2682 | ||
2683 | void | |
2684 | add_excluded_libs (const char *list) | |
2685 | { | |
2686 | const char *p = list, *end; | |
2687 | ||
2688 | while (*p != '\0') | |
2689 | { | |
2690 | struct excluded_lib *entry; | |
2691 | end = strpbrk (p, ",:"); | |
2692 | if (end == NULL) | |
2693 | end = p + strlen (p); | |
1e9cc1c2 | 2694 | entry = (struct excluded_lib *) xmalloc (sizeof (*entry)); |
b58f81ae | 2695 | entry->next = excluded_libs; |
1e9cc1c2 | 2696 | entry->name = (char *) xmalloc (end - p + 1); |
b58f81ae DJ |
2697 | memcpy (entry->name, p, end - p); |
2698 | entry->name[end - p] = '\0'; | |
2699 | excluded_libs = entry; | |
2700 | if (*end == '\0') | |
329c1c86 | 2701 | break; |
b58f81ae DJ |
2702 | p = end + 1; |
2703 | } | |
2704 | } | |
2705 | ||
2706 | static void | |
2707 | check_excluded_libs (bfd *abfd) | |
2708 | { | |
2709 | struct excluded_lib *lib = excluded_libs; | |
2710 | ||
2711 | while (lib) | |
2712 | { | |
2713 | int len = strlen (lib->name); | |
2714 | const char *filename = lbasename (abfd->filename); | |
2715 | ||
2716 | if (strcmp (lib->name, "ALL") == 0) | |
2717 | { | |
2718 | abfd->no_export = TRUE; | |
2719 | return; | |
2720 | } | |
2721 | ||
42627821 | 2722 | if (filename_ncmp (lib->name, filename, len) == 0 |
b58f81ae DJ |
2723 | && (filename[len] == '\0' |
2724 | || (filename[len] == '.' && filename[len + 1] == 'a' | |
2725 | && filename[len + 2] == '\0'))) | |
2726 | { | |
2727 | abfd->no_export = TRUE; | |
2728 | return; | |
2729 | } | |
2730 | ||
2731 | lib = lib->next; | |
2732 | } | |
2733 | } | |
2734 | ||
252b5132 RH |
2735 | /* Get the symbols for an input file. */ |
2736 | ||
e9f53129 | 2737 | bfd_boolean |
1579bae1 AM |
2738 | load_symbols (lang_input_statement_type *entry, |
2739 | lang_statement_list_type *place) | |
252b5132 RH |
2740 | { |
2741 | char **matching; | |
2742 | ||
66be1055 | 2743 | if (entry->flags.loaded) |
b34976b6 | 2744 | return TRUE; |
252b5132 RH |
2745 | |
2746 | ldfile_open_file (entry); | |
2747 | ||
c4b78195 | 2748 | /* Do not process further if the file was missing. */ |
66be1055 | 2749 | if (entry->flags.missing_file) |
c4b78195 NC |
2750 | return TRUE; |
2751 | ||
252b5132 RH |
2752 | if (! bfd_check_format (entry->the_bfd, bfd_archive) |
2753 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
2754 | { | |
2755 | bfd_error_type err; | |
66be1055 | 2756 | struct lang_input_statement_flags save_flags; |
47e2e729 | 2757 | extern FILE *yyin; |
b7a26f91 | 2758 | |
252b5132 | 2759 | err = bfd_get_error (); |
884fb58e NC |
2760 | |
2761 | /* See if the emulation has some special knowledge. */ | |
2762 | if (ldemul_unrecognized_file (entry)) | |
b34976b6 | 2763 | return TRUE; |
884fb58e | 2764 | |
252b5132 RH |
2765 | if (err == bfd_error_file_ambiguously_recognized) |
2766 | { | |
2767 | char **p; | |
2768 | ||
2769 | einfo (_("%B: file not recognized: %E\n"), entry->the_bfd); | |
2770 | einfo (_("%B: matching formats:"), entry->the_bfd); | |
2771 | for (p = matching; *p != NULL; p++) | |
2772 | einfo (" %s", *p); | |
2773 | einfo ("%F\n"); | |
2774 | } | |
2775 | else if (err != bfd_error_file_not_recognized | |
2776 | || place == NULL) | |
967928e9 | 2777 | einfo (_("%F%B: file not recognized: %E\n"), entry->the_bfd); |
b7a26f91 | 2778 | |
252b5132 RH |
2779 | bfd_close (entry->the_bfd); |
2780 | entry->the_bfd = NULL; | |
2781 | ||
252b5132 | 2782 | /* Try to interpret the file as a linker script. */ |
66be1055 | 2783 | save_flags = input_flags; |
252b5132 RH |
2784 | ldfile_open_command_file (entry->filename); |
2785 | ||
bde18da4 | 2786 | push_stat_ptr (place); |
66be1055 AM |
2787 | input_flags.add_DT_NEEDED_for_regular |
2788 | = entry->flags.add_DT_NEEDED_for_regular; | |
2789 | input_flags.add_DT_NEEDED_for_dynamic | |
2790 | = entry->flags.add_DT_NEEDED_for_dynamic; | |
2791 | input_flags.whole_archive = entry->flags.whole_archive; | |
2792 | input_flags.dynamic = entry->flags.dynamic; | |
252b5132 | 2793 | |
b34976b6 | 2794 | ldfile_assumed_script = TRUE; |
252b5132 RH |
2795 | parser_input = input_script; |
2796 | yyparse (); | |
b34976b6 | 2797 | ldfile_assumed_script = FALSE; |
252b5132 | 2798 | |
f4a23d42 AM |
2799 | /* missing_file is sticky. sysrooted will already have been |
2800 | restored when seeing EOF in yyparse, but no harm to restore | |
2801 | again. */ | |
66be1055 AM |
2802 | save_flags.missing_file |= input_flags.missing_file; |
2803 | input_flags = save_flags; | |
bde18da4 | 2804 | pop_stat_ptr (); |
47e2e729 AM |
2805 | fclose (yyin); |
2806 | yyin = NULL; | |
2807 | entry->flags.loaded = TRUE; | |
252b5132 | 2808 | |
bde18da4 | 2809 | return TRUE; |
252b5132 RH |
2810 | } |
2811 | ||
2812 | if (ldemul_recognized_file (entry)) | |
b34976b6 | 2813 | return TRUE; |
252b5132 RH |
2814 | |
2815 | /* We don't call ldlang_add_file for an archive. Instead, the | |
2816 | add_symbols entry point will call ldlang_add_file, via the | |
2817 | add_archive_element callback, for each element of the archive | |
2818 | which is used. */ | |
2819 | switch (bfd_get_format (entry->the_bfd)) | |
2820 | { | |
2821 | default: | |
2822 | break; | |
2823 | ||
2824 | case bfd_object: | |
66be1055 | 2825 | if (!entry->flags.reload) |
15fc2e13 | 2826 | ldlang_add_file (entry); |
cd6f1cf3 | 2827 | if (trace_files || verbose) |
252b5132 RH |
2828 | info_msg ("%I\n", entry); |
2829 | break; | |
2830 | ||
2831 | case bfd_archive: | |
b58f81ae DJ |
2832 | check_excluded_libs (entry->the_bfd); |
2833 | ||
66be1055 | 2834 | if (entry->flags.whole_archive) |
252b5132 | 2835 | { |
b7a26f91 | 2836 | bfd *member = NULL; |
b34976b6 | 2837 | bfd_boolean loaded = TRUE; |
6770ec8c NC |
2838 | |
2839 | for (;;) | |
252b5132 | 2840 | { |
5d3236ee | 2841 | bfd *subsbfd; |
6770ec8c NC |
2842 | member = bfd_openr_next_archived_file (entry->the_bfd, member); |
2843 | ||
2844 | if (member == NULL) | |
2845 | break; | |
b7a26f91 | 2846 | |
252b5132 | 2847 | if (! bfd_check_format (member, bfd_object)) |
6770ec8c NC |
2848 | { |
2849 | einfo (_("%F%B: member %B in archive is not an object\n"), | |
2850 | entry->the_bfd, member); | |
b34976b6 | 2851 | loaded = FALSE; |
6770ec8c NC |
2852 | } |
2853 | ||
db0ca79f | 2854 | subsbfd = member; |
46105645 AM |
2855 | if (!(*link_info.callbacks |
2856 | ->add_archive_element) (&link_info, member, | |
2857 | "--whole-archive", &subsbfd)) | |
252b5132 | 2858 | abort (); |
6770ec8c | 2859 | |
5d3236ee DK |
2860 | /* Potentially, the add_archive_element hook may have set a |
2861 | substitute BFD for us. */ | |
46105645 | 2862 | if (!bfd_link_add_symbols (subsbfd, &link_info)) |
6770ec8c | 2863 | { |
8ff4c1f3 | 2864 | einfo (_("%F%B: error adding symbols: %E\n"), member); |
b34976b6 | 2865 | loaded = FALSE; |
6770ec8c | 2866 | } |
252b5132 RH |
2867 | } |
2868 | ||
66be1055 | 2869 | entry->flags.loaded = loaded; |
6770ec8c | 2870 | return loaded; |
252b5132 | 2871 | } |
6770ec8c | 2872 | break; |
252b5132 RH |
2873 | } |
2874 | ||
03bdc404 | 2875 | if (bfd_link_add_symbols (entry->the_bfd, &link_info)) |
66be1055 | 2876 | entry->flags.loaded = TRUE; |
6770ec8c | 2877 | else |
8ff4c1f3 | 2878 | einfo (_("%F%B: error adding symbols: %E\n"), entry->the_bfd); |
252b5132 | 2879 | |
66be1055 | 2880 | return entry->flags.loaded; |
252b5132 RH |
2881 | } |
2882 | ||
b6bf44ba AM |
2883 | /* Handle a wild statement. S->FILENAME or S->SECTION_LIST or both |
2884 | may be NULL, indicating that it is a wildcard. Separate | |
2885 | lang_input_section statements are created for each part of the | |
2886 | expansion; they are added after the wild statement S. OUTPUT is | |
2887 | the output section. */ | |
252b5132 RH |
2888 | |
2889 | static void | |
1579bae1 AM |
2890 | wild (lang_wild_statement_type *s, |
2891 | const char *target ATTRIBUTE_UNUSED, | |
2892 | lang_output_section_statement_type *output) | |
252b5132 | 2893 | { |
b6bf44ba | 2894 | struct wildcard_list *sec; |
252b5132 | 2895 | |
50c77e5d | 2896 | if (s->handler_data[0] |
329c1c86 | 2897 | && s->handler_data[0]->spec.sorted == by_name |
50c77e5d NC |
2898 | && !s->filenames_sorted) |
2899 | { | |
329c1c86 AM |
2900 | lang_section_bst_type *tree; |
2901 | ||
50c77e5d NC |
2902 | walk_wild (s, output_section_callback_fast, output); |
2903 | ||
e6f2cbf5 | 2904 | tree = s->tree; |
329c1c86 | 2905 | if (tree) |
e6f2cbf5 L |
2906 | { |
2907 | output_section_callback_tree_to_list (s, tree, output); | |
2908 | s->tree = NULL; | |
2909 | } | |
50c77e5d | 2910 | } |
329c1c86 | 2911 | else |
50c77e5d | 2912 | walk_wild (s, output_section_callback, output); |
b6bf44ba | 2913 | |
abe6ac95 AM |
2914 | if (default_common_section == NULL) |
2915 | for (sec = s->section_list; sec != NULL; sec = sec->next) | |
b6bf44ba AM |
2916 | if (sec->spec.name != NULL && strcmp (sec->spec.name, "COMMON") == 0) |
2917 | { | |
2918 | /* Remember the section that common is going to in case we | |
b7a26f91 | 2919 | later get something which doesn't know where to put it. */ |
b6bf44ba | 2920 | default_common_section = output; |
abe6ac95 | 2921 | break; |
b6bf44ba | 2922 | } |
252b5132 RH |
2923 | } |
2924 | ||
b34976b6 | 2925 | /* Return TRUE iff target is the sought target. */ |
08da4cac | 2926 | |
e50d8076 | 2927 | static int |
1579bae1 | 2928 | get_target (const bfd_target *target, void *data) |
e50d8076 | 2929 | { |
1e9cc1c2 | 2930 | const char *sought = (const char *) data; |
5f992e62 | 2931 | |
e50d8076 NC |
2932 | return strcmp (target->name, sought) == 0; |
2933 | } | |
2934 | ||
2935 | /* Like strcpy() but convert to lower case as well. */ | |
08da4cac | 2936 | |
e50d8076 | 2937 | static void |
1579bae1 | 2938 | stricpy (char *dest, char *src) |
e50d8076 NC |
2939 | { |
2940 | char c; | |
5f992e62 | 2941 | |
08da4cac | 2942 | while ((c = *src++) != 0) |
3882b010 | 2943 | *dest++ = TOLOWER (c); |
e50d8076 | 2944 | |
08da4cac | 2945 | *dest = 0; |
e50d8076 NC |
2946 | } |
2947 | ||
396a2467 | 2948 | /* Remove the first occurrence of needle (if any) in haystack |
e50d8076 | 2949 | from haystack. */ |
08da4cac | 2950 | |
e50d8076 | 2951 | static void |
1579bae1 | 2952 | strcut (char *haystack, char *needle) |
e50d8076 NC |
2953 | { |
2954 | haystack = strstr (haystack, needle); | |
5f992e62 | 2955 | |
e50d8076 NC |
2956 | if (haystack) |
2957 | { | |
08da4cac | 2958 | char *src; |
e50d8076 | 2959 | |
08da4cac KH |
2960 | for (src = haystack + strlen (needle); *src;) |
2961 | *haystack++ = *src++; | |
5f992e62 | 2962 | |
08da4cac | 2963 | *haystack = 0; |
e50d8076 NC |
2964 | } |
2965 | } | |
2966 | ||
2967 | /* Compare two target format name strings. | |
2968 | Return a value indicating how "similar" they are. */ | |
08da4cac | 2969 | |
e50d8076 | 2970 | static int |
1579bae1 | 2971 | name_compare (char *first, char *second) |
e50d8076 | 2972 | { |
08da4cac KH |
2973 | char *copy1; |
2974 | char *copy2; | |
2975 | int result; | |
5f992e62 | 2976 | |
1e9cc1c2 NC |
2977 | copy1 = (char *) xmalloc (strlen (first) + 1); |
2978 | copy2 = (char *) xmalloc (strlen (second) + 1); | |
e50d8076 NC |
2979 | |
2980 | /* Convert the names to lower case. */ | |
2981 | stricpy (copy1, first); | |
2982 | stricpy (copy2, second); | |
2983 | ||
1579bae1 | 2984 | /* Remove size and endian strings from the name. */ |
e50d8076 NC |
2985 | strcut (copy1, "big"); |
2986 | strcut (copy1, "little"); | |
2987 | strcut (copy2, "big"); | |
2988 | strcut (copy2, "little"); | |
2989 | ||
2990 | /* Return a value based on how many characters match, | |
2991 | starting from the beginning. If both strings are | |
2992 | the same then return 10 * their length. */ | |
08da4cac KH |
2993 | for (result = 0; copy1[result] == copy2[result]; result++) |
2994 | if (copy1[result] == 0) | |
e50d8076 NC |
2995 | { |
2996 | result *= 10; | |
2997 | break; | |
2998 | } | |
5f992e62 | 2999 | |
e50d8076 NC |
3000 | free (copy1); |
3001 | free (copy2); | |
3002 | ||
3003 | return result; | |
3004 | } | |
3005 | ||
3006 | /* Set by closest_target_match() below. */ | |
08da4cac | 3007 | static const bfd_target *winner; |
e50d8076 NC |
3008 | |
3009 | /* Scan all the valid bfd targets looking for one that has the endianness | |
3010 | requirement that was specified on the command line, and is the nearest | |
3011 | match to the original output target. */ | |
08da4cac | 3012 | |
e50d8076 | 3013 | static int |
1579bae1 | 3014 | closest_target_match (const bfd_target *target, void *data) |
e50d8076 | 3015 | { |
1e9cc1c2 | 3016 | const bfd_target *original = (const bfd_target *) data; |
5f992e62 | 3017 | |
08da4cac KH |
3018 | if (command_line.endian == ENDIAN_BIG |
3019 | && target->byteorder != BFD_ENDIAN_BIG) | |
e50d8076 | 3020 | return 0; |
5f992e62 | 3021 | |
08da4cac KH |
3022 | if (command_line.endian == ENDIAN_LITTLE |
3023 | && target->byteorder != BFD_ENDIAN_LITTLE) | |
e50d8076 NC |
3024 | return 0; |
3025 | ||
3026 | /* Must be the same flavour. */ | |
3027 | if (target->flavour != original->flavour) | |
3028 | return 0; | |
3029 | ||
de7dd2bd | 3030 | /* Ignore generic big and little endian elf vectors. */ |
967928e9 | 3031 | if (strcmp (target->name, "elf32-big") == 0 |
de7dd2bd NC |
3032 | || strcmp (target->name, "elf64-big") == 0 |
3033 | || strcmp (target->name, "elf32-little") == 0 | |
3034 | || strcmp (target->name, "elf64-little") == 0) | |
3035 | return 0; | |
3036 | ||
e50d8076 NC |
3037 | /* If we have not found a potential winner yet, then record this one. */ |
3038 | if (winner == NULL) | |
3039 | { | |
3040 | winner = target; | |
3041 | return 0; | |
3042 | } | |
3043 | ||
3044 | /* Oh dear, we now have two potential candidates for a successful match. | |
4de2d33d | 3045 | Compare their names and choose the better one. */ |
d1778b88 AM |
3046 | if (name_compare (target->name, original->name) |
3047 | > name_compare (winner->name, original->name)) | |
e50d8076 NC |
3048 | winner = target; |
3049 | ||
3050 | /* Keep on searching until wqe have checked them all. */ | |
3051 | return 0; | |
3052 | } | |
3053 | ||
3054 | /* Return the BFD target format of the first input file. */ | |
08da4cac | 3055 | |
e50d8076 | 3056 | static char * |
1579bae1 | 3057 | get_first_input_target (void) |
e50d8076 | 3058 | { |
08da4cac | 3059 | char *target = NULL; |
e50d8076 NC |
3060 | |
3061 | LANG_FOR_EACH_INPUT_STATEMENT (s) | |
3062 | { | |
3063 | if (s->header.type == lang_input_statement_enum | |
66be1055 | 3064 | && s->flags.real) |
e50d8076 NC |
3065 | { |
3066 | ldfile_open_file (s); | |
5f992e62 | 3067 | |
e50d8076 NC |
3068 | if (s->the_bfd != NULL |
3069 | && bfd_check_format (s->the_bfd, bfd_object)) | |
3070 | { | |
3071 | target = bfd_get_target (s->the_bfd); | |
5f992e62 | 3072 | |
e50d8076 NC |
3073 | if (target != NULL) |
3074 | break; | |
3075 | } | |
3076 | } | |
3077 | } | |
5f992e62 | 3078 | |
e50d8076 NC |
3079 | return target; |
3080 | } | |
3081 | ||
599917b8 | 3082 | const char * |
1579bae1 | 3083 | lang_get_output_target (void) |
599917b8 JJ |
3084 | { |
3085 | const char *target; | |
3086 | ||
3087 | /* Has the user told us which output format to use? */ | |
1579bae1 | 3088 | if (output_target != NULL) |
599917b8 JJ |
3089 | return output_target; |
3090 | ||
3091 | /* No - has the current target been set to something other than | |
3092 | the default? */ | |
30824704 | 3093 | if (current_target != default_target && current_target != NULL) |
599917b8 JJ |
3094 | return current_target; |
3095 | ||
3096 | /* No - can we determine the format of the first input file? */ | |
3097 | target = get_first_input_target (); | |
3098 | if (target != NULL) | |
3099 | return target; | |
3100 | ||
3101 | /* Failed - use the default output target. */ | |
3102 | return default_target; | |
3103 | } | |
3104 | ||
252b5132 RH |
3105 | /* Open the output file. */ |
3106 | ||
f13a99db | 3107 | static void |
1579bae1 | 3108 | open_output (const char *name) |
252b5132 | 3109 | { |
599917b8 | 3110 | output_target = lang_get_output_target (); |
5f992e62 | 3111 | |
08da4cac KH |
3112 | /* Has the user requested a particular endianness on the command |
3113 | line? */ | |
e50d8076 NC |
3114 | if (command_line.endian != ENDIAN_UNSET) |
3115 | { | |
08da4cac | 3116 | const bfd_target *target; |
1b69a0bf | 3117 | enum bfd_endian desired_endian; |
e50d8076 NC |
3118 | |
3119 | /* Get the chosen target. */ | |
1579bae1 | 3120 | target = bfd_search_for_target (get_target, (void *) output_target); |
e50d8076 | 3121 | |
c13b1b77 NC |
3122 | /* If the target is not supported, we cannot do anything. */ |
3123 | if (target != NULL) | |
e50d8076 | 3124 | { |
c13b1b77 NC |
3125 | if (command_line.endian == ENDIAN_BIG) |
3126 | desired_endian = BFD_ENDIAN_BIG; | |
e50d8076 | 3127 | else |
c13b1b77 | 3128 | desired_endian = BFD_ENDIAN_LITTLE; |
5f992e62 AM |
3129 | |
3130 | /* See if the target has the wrong endianness. This should | |
3131 | not happen if the linker script has provided big and | |
3132 | little endian alternatives, but some scrips don't do | |
3133 | this. */ | |
c13b1b77 | 3134 | if (target->byteorder != desired_endian) |
e50d8076 | 3135 | { |
c13b1b77 NC |
3136 | /* If it does, then see if the target provides |
3137 | an alternative with the correct endianness. */ | |
3138 | if (target->alternative_target != NULL | |
3139 | && (target->alternative_target->byteorder == desired_endian)) | |
3140 | output_target = target->alternative_target->name; | |
e50d8076 | 3141 | else |
c13b1b77 | 3142 | { |
5f992e62 AM |
3143 | /* Try to find a target as similar as possible to |
3144 | the default target, but which has the desired | |
3145 | endian characteristic. */ | |
1579bae1 AM |
3146 | bfd_search_for_target (closest_target_match, |
3147 | (void *) target); | |
5f992e62 AM |
3148 | |
3149 | /* Oh dear - we could not find any targets that | |
3150 | satisfy our requirements. */ | |
c13b1b77 | 3151 | if (winner == NULL) |
6feb9908 AM |
3152 | einfo (_("%P: warning: could not find any targets" |
3153 | " that match endianness requirement\n")); | |
c13b1b77 NC |
3154 | else |
3155 | output_target = winner->name; | |
3156 | } | |
e50d8076 NC |
3157 | } |
3158 | } | |
252b5132 | 3159 | } |
5f992e62 | 3160 | |
f13a99db | 3161 | link_info.output_bfd = bfd_openw (name, output_target); |
252b5132 | 3162 | |
f13a99db | 3163 | if (link_info.output_bfd == NULL) |
252b5132 RH |
3164 | { |
3165 | if (bfd_get_error () == bfd_error_invalid_target) | |
e50d8076 NC |
3166 | einfo (_("%P%F: target %s not found\n"), output_target); |
3167 | ||
252b5132 RH |
3168 | einfo (_("%P%F: cannot open output file %s: %E\n"), name); |
3169 | } | |
3170 | ||
b34976b6 | 3171 | delete_output_file_on_failure = TRUE; |
252b5132 | 3172 | |
f13a99db | 3173 | if (! bfd_set_format (link_info.output_bfd, bfd_object)) |
252b5132 | 3174 | einfo (_("%P%F:%s: can not make object file: %E\n"), name); |
f13a99db | 3175 | if (! bfd_set_arch_mach (link_info.output_bfd, |
252b5132 RH |
3176 | ldfile_output_architecture, |
3177 | ldfile_output_machine)) | |
3178 | einfo (_("%P%F:%s: can not set architecture: %E\n"), name); | |
3179 | ||
f13a99db | 3180 | link_info.hash = bfd_link_hash_table_create (link_info.output_bfd); |
1579bae1 | 3181 | if (link_info.hash == NULL) |
384a9dda | 3182 | einfo (_("%P%F: can not create hash table: %E\n")); |
252b5132 | 3183 | |
f13a99db | 3184 | bfd_set_gp_size (link_info.output_bfd, g_switch_value); |
252b5132 RH |
3185 | } |
3186 | ||
252b5132 | 3187 | static void |
1579bae1 | 3188 | ldlang_open_output (lang_statement_union_type *statement) |
252b5132 RH |
3189 | { |
3190 | switch (statement->header.type) | |
3191 | { | |
3192 | case lang_output_statement_enum: | |
f13a99db AM |
3193 | ASSERT (link_info.output_bfd == NULL); |
3194 | open_output (statement->output_statement.name); | |
252b5132 | 3195 | ldemul_set_output_arch (); |
0e1862bb L |
3196 | if (config.magic_demand_paged |
3197 | && !bfd_link_relocatable (&link_info)) | |
f13a99db | 3198 | link_info.output_bfd->flags |= D_PAGED; |
252b5132 | 3199 | else |
f13a99db | 3200 | link_info.output_bfd->flags &= ~D_PAGED; |
252b5132 | 3201 | if (config.text_read_only) |
f13a99db | 3202 | link_info.output_bfd->flags |= WP_TEXT; |
252b5132 | 3203 | else |
f13a99db | 3204 | link_info.output_bfd->flags &= ~WP_TEXT; |
252b5132 | 3205 | if (link_info.traditional_format) |
f13a99db | 3206 | link_info.output_bfd->flags |= BFD_TRADITIONAL_FORMAT; |
252b5132 | 3207 | else |
f13a99db | 3208 | link_info.output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; |
252b5132 RH |
3209 | break; |
3210 | ||
3211 | case lang_target_statement_enum: | |
3212 | current_target = statement->target_statement.target; | |
3213 | break; | |
3214 | default: | |
3215 | break; | |
3216 | } | |
3217 | } | |
3218 | ||
e5caa5e0 AM |
3219 | static void |
3220 | init_opb (void) | |
3221 | { | |
3222 | unsigned x = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, | |
3223 | ldfile_output_machine); | |
3224 | opb_shift = 0; | |
3225 | if (x > 1) | |
3226 | while ((x & 1) == 0) | |
3227 | { | |
3228 | x >>= 1; | |
3229 | ++opb_shift; | |
3230 | } | |
3231 | ASSERT (x == 1); | |
3232 | } | |
3233 | ||
252b5132 RH |
3234 | /* Open all the input files. */ |
3235 | ||
486329aa AM |
3236 | enum open_bfd_mode |
3237 | { | |
3238 | OPEN_BFD_NORMAL = 0, | |
3239 | OPEN_BFD_FORCE = 1, | |
3240 | OPEN_BFD_RESCAN = 2 | |
3241 | }; | |
9e2278f5 AM |
3242 | #ifdef ENABLE_PLUGINS |
3243 | static lang_input_statement_type *plugin_insert = NULL; | |
3244 | #endif | |
486329aa | 3245 | |
252b5132 | 3246 | static void |
486329aa | 3247 | open_input_bfds (lang_statement_union_type *s, enum open_bfd_mode mode) |
252b5132 | 3248 | { |
1579bae1 | 3249 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
3250 | { |
3251 | switch (s->header.type) | |
3252 | { | |
3253 | case lang_constructors_statement_enum: | |
486329aa | 3254 | open_input_bfds (constructor_list.head, mode); |
252b5132 RH |
3255 | break; |
3256 | case lang_output_section_statement_enum: | |
486329aa | 3257 | open_input_bfds (s->output_section_statement.children.head, mode); |
252b5132 RH |
3258 | break; |
3259 | case lang_wild_statement_enum: | |
08da4cac | 3260 | /* Maybe we should load the file's symbols. */ |
486329aa AM |
3261 | if ((mode & OPEN_BFD_RESCAN) == 0 |
3262 | && s->wild_statement.filename | |
97407faf AM |
3263 | && !wildcardp (s->wild_statement.filename) |
3264 | && !archive_path (s->wild_statement.filename)) | |
4a43e768 | 3265 | lookup_name (s->wild_statement.filename); |
486329aa | 3266 | open_input_bfds (s->wild_statement.children.head, mode); |
252b5132 RH |
3267 | break; |
3268 | case lang_group_statement_enum: | |
3269 | { | |
3270 | struct bfd_link_hash_entry *undefs; | |
3271 | ||
3272 | /* We must continually search the entries in the group | |
08da4cac KH |
3273 | until no new symbols are added to the list of undefined |
3274 | symbols. */ | |
252b5132 RH |
3275 | |
3276 | do | |
3277 | { | |
3278 | undefs = link_info.hash->undefs_tail; | |
486329aa AM |
3279 | open_input_bfds (s->group_statement.children.head, |
3280 | mode | OPEN_BFD_FORCE); | |
252b5132 RH |
3281 | } |
3282 | while (undefs != link_info.hash->undefs_tail); | |
3283 | } | |
3284 | break; | |
3285 | case lang_target_statement_enum: | |
3286 | current_target = s->target_statement.target; | |
3287 | break; | |
3288 | case lang_input_statement_enum: | |
66be1055 | 3289 | if (s->input_statement.flags.real) |
252b5132 | 3290 | { |
bde18da4 | 3291 | lang_statement_union_type **os_tail; |
252b5132 | 3292 | lang_statement_list_type add; |
d215621e | 3293 | bfd *abfd; |
252b5132 RH |
3294 | |
3295 | s->input_statement.target = current_target; | |
3296 | ||
3297 | /* If we are being called from within a group, and this | |
afd7a018 AM |
3298 | is an archive which has already been searched, then |
3299 | force it to be researched unless the whole archive | |
d215621e AM |
3300 | has been loaded already. Do the same for a rescan. |
3301 | Likewise reload --as-needed shared libs. */ | |
486329aa | 3302 | if (mode != OPEN_BFD_NORMAL |
9e2278f5 AM |
3303 | #ifdef ENABLE_PLUGINS |
3304 | && ((mode & OPEN_BFD_RESCAN) == 0 | |
3305 | || plugin_insert == NULL) | |
3306 | #endif | |
66be1055 | 3307 | && s->input_statement.flags.loaded |
d215621e AM |
3308 | && (abfd = s->input_statement.the_bfd) != NULL |
3309 | && ((bfd_get_format (abfd) == bfd_archive | |
3310 | && !s->input_statement.flags.whole_archive) | |
3311 | || (bfd_get_format (abfd) == bfd_object | |
3312 | && ((abfd->flags) & DYNAMIC) != 0 | |
3313 | && s->input_statement.flags.add_DT_NEEDED_for_regular | |
e77620a5 | 3314 | && bfd_get_flavour (abfd) == bfd_target_elf_flavour |
0fef4b98 | 3315 | && (elf_dyn_lib_class (abfd) & DYN_AS_NEEDED) != 0))) |
15fc2e13 | 3316 | { |
66be1055 AM |
3317 | s->input_statement.flags.loaded = FALSE; |
3318 | s->input_statement.flags.reload = TRUE; | |
15fc2e13 | 3319 | } |
252b5132 | 3320 | |
bde18da4 | 3321 | os_tail = lang_output_section_statement.tail; |
d1778b88 | 3322 | lang_list_init (&add); |
1276aefa | 3323 | |
6770ec8c | 3324 | if (! load_symbols (&s->input_statement, &add)) |
b34976b6 | 3325 | config.make_executable = FALSE; |
252b5132 RH |
3326 | |
3327 | if (add.head != NULL) | |
3328 | { | |
bde18da4 AM |
3329 | /* If this was a script with output sections then |
3330 | tack any added statements on to the end of the | |
3331 | list. This avoids having to reorder the output | |
3332 | section statement list. Very likely the user | |
3333 | forgot -T, and whatever we do here will not meet | |
3334 | naive user expectations. */ | |
3335 | if (os_tail != lang_output_section_statement.tail) | |
3336 | { | |
3337 | einfo (_("%P: warning: %s contains output sections;" | |
3338 | " did you forget -T?\n"), | |
3339 | s->input_statement.filename); | |
3340 | *stat_ptr->tail = add.head; | |
3341 | stat_ptr->tail = add.tail; | |
3342 | } | |
3343 | else | |
3344 | { | |
3345 | *add.tail = s->header.next; | |
3346 | s->header.next = add.head; | |
3347 | } | |
252b5132 RH |
3348 | } |
3349 | } | |
9e2278f5 AM |
3350 | #ifdef ENABLE_PLUGINS |
3351 | /* If we have found the point at which a plugin added new | |
3352 | files, clear plugin_insert to enable archive rescan. */ | |
3353 | if (&s->input_statement == plugin_insert) | |
3354 | plugin_insert = NULL; | |
3355 | #endif | |
252b5132 | 3356 | break; |
e759c116 | 3357 | case lang_assignment_statement_enum: |
eb8476a6 | 3358 | if (s->assignment_statement.exp->assign.defsym) |
01554a74 AM |
3359 | /* This is from a --defsym on the command line. */ |
3360 | exp_fold_tree_no_dot (s->assignment_statement.exp); | |
e759c116 | 3361 | break; |
252b5132 RH |
3362 | default: |
3363 | break; | |
3364 | } | |
3365 | } | |
c4b78195 NC |
3366 | |
3367 | /* Exit if any of the files were missing. */ | |
66be1055 | 3368 | if (input_flags.missing_file) |
c4b78195 | 3369 | einfo ("%F"); |
252b5132 RH |
3370 | } |
3371 | ||
08da4cac | 3372 | /* Add the supplied name to the symbol table as an undefined reference. |
fcf0e35b AM |
3373 | This is a two step process as the symbol table doesn't even exist at |
3374 | the time the ld command line is processed. First we put the name | |
3375 | on a list, then, once the output file has been opened, transfer the | |
3376 | name to the symbol table. */ | |
3377 | ||
e3e942e9 | 3378 | typedef struct bfd_sym_chain ldlang_undef_chain_list_type; |
252b5132 | 3379 | |
e3e942e9 | 3380 | #define ldlang_undef_chain_list_head entry_symbol.next |
252b5132 RH |
3381 | |
3382 | void | |
24898b70 | 3383 | ldlang_add_undef (const char *const name, bfd_boolean cmdline) |
252b5132 | 3384 | { |
24898b70 | 3385 | ldlang_undef_chain_list_type *new_undef; |
252b5132 | 3386 | |
24898b70 AM |
3387 | undef_from_cmdline = undef_from_cmdline || cmdline; |
3388 | new_undef = (ldlang_undef_chain_list_type *) stat_alloc (sizeof (*new_undef)); | |
d3ce72d0 NC |
3389 | new_undef->next = ldlang_undef_chain_list_head; |
3390 | ldlang_undef_chain_list_head = new_undef; | |
252b5132 | 3391 | |
d3ce72d0 | 3392 | new_undef->name = xstrdup (name); |
fcf0e35b | 3393 | |
f13a99db | 3394 | if (link_info.output_bfd != NULL) |
d3ce72d0 | 3395 | insert_undefined (new_undef->name); |
fcf0e35b AM |
3396 | } |
3397 | ||
3398 | /* Insert NAME as undefined in the symbol table. */ | |
3399 | ||
3400 | static void | |
1579bae1 | 3401 | insert_undefined (const char *name) |
fcf0e35b AM |
3402 | { |
3403 | struct bfd_link_hash_entry *h; | |
3404 | ||
b34976b6 | 3405 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, FALSE, TRUE); |
1579bae1 | 3406 | if (h == NULL) |
fcf0e35b AM |
3407 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); |
3408 | if (h->type == bfd_link_hash_new) | |
3409 | { | |
3410 | h->type = bfd_link_hash_undefined; | |
3411 | h->u.undef.abfd = NULL; | |
3412 | bfd_link_add_undef (link_info.hash, h); | |
3413 | } | |
252b5132 RH |
3414 | } |
3415 | ||
3416 | /* Run through the list of undefineds created above and place them | |
3417 | into the linker hash table as undefined symbols belonging to the | |
08da4cac KH |
3418 | script file. */ |
3419 | ||
252b5132 | 3420 | static void |
1579bae1 | 3421 | lang_place_undefineds (void) |
252b5132 RH |
3422 | { |
3423 | ldlang_undef_chain_list_type *ptr; | |
3424 | ||
1579bae1 AM |
3425 | for (ptr = ldlang_undef_chain_list_head; ptr != NULL; ptr = ptr->next) |
3426 | insert_undefined (ptr->name); | |
252b5132 RH |
3427 | } |
3428 | ||
0a618243 AB |
3429 | /* Structure used to build the list of symbols that the user has required |
3430 | be defined. */ | |
3431 | ||
3432 | struct require_defined_symbol | |
3433 | { | |
3434 | const char *name; | |
3435 | struct require_defined_symbol *next; | |
3436 | }; | |
3437 | ||
3438 | /* The list of symbols that the user has required be defined. */ | |
3439 | ||
3440 | static struct require_defined_symbol *require_defined_symbol_list; | |
3441 | ||
3442 | /* Add a new symbol NAME to the list of symbols that are required to be | |
3443 | defined. */ | |
3444 | ||
3445 | void | |
3446 | ldlang_add_require_defined (const char * const name) | |
3447 | { | |
3448 | struct require_defined_symbol *ptr; | |
3449 | ||
3450 | ldlang_add_undef (name, TRUE); | |
3451 | ptr = (struct require_defined_symbol *) stat_alloc (sizeof (*ptr)); | |
3452 | ptr->next = require_defined_symbol_list; | |
3453 | ptr->name = strdup (name); | |
3454 | require_defined_symbol_list = ptr; | |
3455 | } | |
3456 | ||
3457 | /* Check that all symbols the user required to be defined, are defined, | |
3458 | raise an error if we find a symbol that is not defined. */ | |
3459 | ||
3460 | static void | |
3461 | ldlang_check_require_defined_symbols (void) | |
3462 | { | |
3463 | struct require_defined_symbol *ptr; | |
3464 | ||
3465 | for (ptr = require_defined_symbol_list; ptr != NULL; ptr = ptr->next) | |
3466 | { | |
3467 | struct bfd_link_hash_entry *h; | |
3468 | ||
3469 | h = bfd_link_hash_lookup (link_info.hash, ptr->name, | |
3470 | FALSE, FALSE, TRUE); | |
3471 | if (h == NULL | |
3472 | || (h->type != bfd_link_hash_defined | |
3473 | && h->type != bfd_link_hash_defweak)) | |
3474 | einfo(_("%P%X: required symbol `%s' not defined\n"), ptr->name); | |
3475 | } | |
3476 | } | |
3477 | ||
0841712e JJ |
3478 | /* Check for all readonly or some readwrite sections. */ |
3479 | ||
3480 | static void | |
6feb9908 AM |
3481 | check_input_sections |
3482 | (lang_statement_union_type *s, | |
3483 | lang_output_section_statement_type *output_section_statement) | |
0841712e JJ |
3484 | { |
3485 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) | |
3486 | { | |
3487 | switch (s->header.type) | |
967928e9 AM |
3488 | { |
3489 | case lang_wild_statement_enum: | |
3490 | walk_wild (&s->wild_statement, check_section_callback, | |
3491 | output_section_statement); | |
3492 | if (! output_section_statement->all_input_readonly) | |
3493 | return; | |
3494 | break; | |
3495 | case lang_constructors_statement_enum: | |
3496 | check_input_sections (constructor_list.head, | |
3497 | output_section_statement); | |
3498 | if (! output_section_statement->all_input_readonly) | |
3499 | return; | |
3500 | break; | |
3501 | case lang_group_statement_enum: | |
3502 | check_input_sections (s->group_statement.children.head, | |
3503 | output_section_statement); | |
3504 | if (! output_section_statement->all_input_readonly) | |
3505 | return; | |
3506 | break; | |
3507 | default: | |
3508 | break; | |
3509 | } | |
0841712e JJ |
3510 | } |
3511 | } | |
3512 | ||
bcaa7b3e L |
3513 | /* Update wildcard statements if needed. */ |
3514 | ||
3515 | static void | |
3516 | update_wild_statements (lang_statement_union_type *s) | |
3517 | { | |
3518 | struct wildcard_list *sec; | |
3519 | ||
3520 | switch (sort_section) | |
3521 | { | |
3522 | default: | |
3523 | FAIL (); | |
3524 | ||
3525 | case none: | |
3526 | break; | |
3527 | ||
3528 | case by_name: | |
3529 | case by_alignment: | |
3530 | for (; s != NULL; s = s->header.next) | |
3531 | { | |
3532 | switch (s->header.type) | |
3533 | { | |
3534 | default: | |
3535 | break; | |
3536 | ||
3537 | case lang_wild_statement_enum: | |
0d0999db L |
3538 | for (sec = s->wild_statement.section_list; sec != NULL; |
3539 | sec = sec->next) | |
bcaa7b3e L |
3540 | { |
3541 | switch (sec->spec.sorted) | |
3542 | { | |
3543 | case none: | |
3544 | sec->spec.sorted = sort_section; | |
3545 | break; | |
3546 | case by_name: | |
3547 | if (sort_section == by_alignment) | |
3548 | sec->spec.sorted = by_name_alignment; | |
3549 | break; | |
3550 | case by_alignment: | |
3551 | if (sort_section == by_name) | |
3552 | sec->spec.sorted = by_alignment_name; | |
3553 | break; | |
3554 | default: | |
3555 | break; | |
3556 | } | |
3557 | } | |
3558 | break; | |
3559 | ||
3560 | case lang_constructors_statement_enum: | |
3561 | update_wild_statements (constructor_list.head); | |
3562 | break; | |
3563 | ||
3564 | case lang_output_section_statement_enum: | |
eda680f8 L |
3565 | /* Don't sort .init/.fini sections. */ |
3566 | if (strcmp (s->output_section_statement.name, ".init") != 0 | |
3567 | && strcmp (s->output_section_statement.name, ".fini") != 0) | |
3568 | update_wild_statements | |
3569 | (s->output_section_statement.children.head); | |
bcaa7b3e L |
3570 | break; |
3571 | ||
3572 | case lang_group_statement_enum: | |
3573 | update_wild_statements (s->group_statement.children.head); | |
3574 | break; | |
3575 | } | |
3576 | } | |
3577 | break; | |
3578 | } | |
3579 | } | |
3580 | ||
396a2467 | 3581 | /* Open input files and attach to output sections. */ |
08da4cac | 3582 | |
252b5132 | 3583 | static void |
1579bae1 AM |
3584 | map_input_to_output_sections |
3585 | (lang_statement_union_type *s, const char *target, | |
afd7a018 | 3586 | lang_output_section_statement_type *os) |
252b5132 | 3587 | { |
1579bae1 | 3588 | for (; s != NULL; s = s->header.next) |
252b5132 | 3589 | { |
dfa7b0b8 AM |
3590 | lang_output_section_statement_type *tos; |
3591 | flagword flags; | |
3592 | ||
252b5132 RH |
3593 | switch (s->header.type) |
3594 | { | |
252b5132 | 3595 | case lang_wild_statement_enum: |
afd7a018 | 3596 | wild (&s->wild_statement, target, os); |
abc6ab0a | 3597 | break; |
252b5132 RH |
3598 | case lang_constructors_statement_enum: |
3599 | map_input_to_output_sections (constructor_list.head, | |
3600 | target, | |
afd7a018 | 3601 | os); |
252b5132 RH |
3602 | break; |
3603 | case lang_output_section_statement_enum: | |
dfa7b0b8 AM |
3604 | tos = &s->output_section_statement; |
3605 | if (tos->constraint != 0) | |
0841712e | 3606 | { |
dfa7b0b8 AM |
3607 | if (tos->constraint != ONLY_IF_RW |
3608 | && tos->constraint != ONLY_IF_RO) | |
0841712e | 3609 | break; |
dfa7b0b8 AM |
3610 | tos->all_input_readonly = TRUE; |
3611 | check_input_sections (tos->children.head, tos); | |
3612 | if (tos->all_input_readonly != (tos->constraint == ONLY_IF_RO)) | |
0841712e | 3613 | { |
dfa7b0b8 | 3614 | tos->constraint = -1; |
0841712e JJ |
3615 | break; |
3616 | } | |
3617 | } | |
dfa7b0b8 | 3618 | map_input_to_output_sections (tos->children.head, |
252b5132 | 3619 | target, |
dfa7b0b8 | 3620 | tos); |
a431bc2e AM |
3621 | break; |
3622 | case lang_output_statement_enum: | |
252b5132 RH |
3623 | break; |
3624 | case lang_target_statement_enum: | |
3625 | target = s->target_statement.target; | |
3626 | break; | |
3627 | case lang_group_statement_enum: | |
3628 | map_input_to_output_sections (s->group_statement.children.head, | |
3629 | target, | |
afd7a018 | 3630 | os); |
252b5132 | 3631 | break; |
384d938f NS |
3632 | case lang_data_statement_enum: |
3633 | /* Make sure that any sections mentioned in the expression | |
3634 | are initialized. */ | |
3635 | exp_init_os (s->data_statement.exp); | |
2e76e85a AM |
3636 | /* The output section gets CONTENTS, ALLOC and LOAD, but |
3637 | these may be overridden by the script. */ | |
dfa7b0b8 AM |
3638 | flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD; |
3639 | switch (os->sectype) | |
3640 | { | |
3641 | case normal_section: | |
3642 | case overlay_section: | |
3643 | break; | |
3644 | case noalloc_section: | |
3645 | flags = SEC_HAS_CONTENTS; | |
3646 | break; | |
3647 | case noload_section: | |
f4eaaf7f AM |
3648 | if (bfd_get_flavour (link_info.output_bfd) |
3649 | == bfd_target_elf_flavour) | |
3650 | flags = SEC_NEVER_LOAD | SEC_ALLOC; | |
3651 | else | |
3652 | flags = SEC_NEVER_LOAD | SEC_HAS_CONTENTS; | |
dfa7b0b8 AM |
3653 | break; |
3654 | } | |
a431bc2e | 3655 | if (os->bfd_section == NULL) |
dfa7b0b8 | 3656 | init_os (os, flags); |
a431bc2e AM |
3657 | else |
3658 | os->bfd_section->flags |= flags; | |
afd7a018 | 3659 | break; |
252b5132 | 3660 | case lang_input_section_enum: |
e0f6802f AM |
3661 | break; |
3662 | case lang_fill_statement_enum: | |
252b5132 | 3663 | case lang_object_symbols_statement_enum: |
252b5132 RH |
3664 | case lang_reloc_statement_enum: |
3665 | case lang_padding_statement_enum: | |
3666 | case lang_input_statement_enum: | |
afd7a018 | 3667 | if (os != NULL && os->bfd_section == NULL) |
dfa7b0b8 | 3668 | init_os (os, 0); |
252b5132 RH |
3669 | break; |
3670 | case lang_assignment_statement_enum: | |
afd7a018 | 3671 | if (os != NULL && os->bfd_section == NULL) |
dfa7b0b8 | 3672 | init_os (os, 0); |
252b5132 RH |
3673 | |
3674 | /* Make sure that any sections mentioned in the assignment | |
08da4cac | 3675 | are initialized. */ |
252b5132 RH |
3676 | exp_init_os (s->assignment_statement.exp); |
3677 | break; | |
252b5132 | 3678 | case lang_address_statement_enum: |
a431bc2e AM |
3679 | /* Mark the specified section with the supplied address. |
3680 | If this section was actually a segment marker, then the | |
3681 | directive is ignored if the linker script explicitly | |
3682 | processed the segment marker. Originally, the linker | |
3683 | treated segment directives (like -Ttext on the | |
3684 | command-line) as section directives. We honor the | |
3685 | section directive semantics for backwards compatibilty; | |
3686 | linker scripts that do not specifically check for | |
3687 | SEGMENT_START automatically get the old semantics. */ | |
329c1c86 | 3688 | if (!s->address_statement.segment |
ba916c8a MM |
3689 | || !s->address_statement.segment->used) |
3690 | { | |
dfa7b0b8 AM |
3691 | const char *name = s->address_statement.section_name; |
3692 | ||
3693 | /* Create the output section statement here so that | |
3694 | orphans with a set address will be placed after other | |
3695 | script sections. If we let the orphan placement code | |
3696 | place them in amongst other sections then the address | |
3697 | will affect following script sections, which is | |
3698 | likely to surprise naive users. */ | |
3699 | tos = lang_output_section_statement_lookup (name, 0, TRUE); | |
3700 | tos->addr_tree = s->address_statement.address; | |
3701 | if (tos->bfd_section == NULL) | |
3702 | init_os (tos, 0); | |
ba916c8a | 3703 | } |
252b5132 | 3704 | break; |
53d25da6 AM |
3705 | case lang_insert_statement_enum: |
3706 | break; | |
3707 | } | |
3708 | } | |
3709 | } | |
3710 | ||
3711 | /* An insert statement snips out all the linker statements from the | |
3712 | start of the list and places them after the output section | |
3713 | statement specified by the insert. This operation is complicated | |
3714 | by the fact that we keep a doubly linked list of output section | |
3715 | statements as well as the singly linked list of all statements. */ | |
3716 | ||
3717 | static void | |
3718 | process_insert_statements (void) | |
3719 | { | |
3720 | lang_statement_union_type **s; | |
3721 | lang_output_section_statement_type *first_os = NULL; | |
3722 | lang_output_section_statement_type *last_os = NULL; | |
66c103b7 | 3723 | lang_output_section_statement_type *os; |
53d25da6 AM |
3724 | |
3725 | /* "start of list" is actually the statement immediately after | |
3726 | the special abs_section output statement, so that it isn't | |
3727 | reordered. */ | |
3728 | s = &lang_output_section_statement.head; | |
3729 | while (*(s = &(*s)->header.next) != NULL) | |
3730 | { | |
3731 | if ((*s)->header.type == lang_output_section_statement_enum) | |
3732 | { | |
3733 | /* Keep pointers to the first and last output section | |
3734 | statement in the sequence we may be about to move. */ | |
d2ae7be0 AM |
3735 | os = &(*s)->output_section_statement; |
3736 | ||
3737 | ASSERT (last_os == NULL || last_os->next == os); | |
3738 | last_os = os; | |
66c103b7 AM |
3739 | |
3740 | /* Set constraint negative so that lang_output_section_find | |
3741 | won't match this output section statement. At this | |
3742 | stage in linking constraint has values in the range | |
3743 | [-1, ONLY_IN_RW]. */ | |
3744 | last_os->constraint = -2 - last_os->constraint; | |
53d25da6 AM |
3745 | if (first_os == NULL) |
3746 | first_os = last_os; | |
3747 | } | |
3748 | else if ((*s)->header.type == lang_insert_statement_enum) | |
3749 | { | |
3750 | lang_insert_statement_type *i = &(*s)->insert_statement; | |
3751 | lang_output_section_statement_type *where; | |
53d25da6 AM |
3752 | lang_statement_union_type **ptr; |
3753 | lang_statement_union_type *first; | |
3754 | ||
3755 | where = lang_output_section_find (i->where); | |
3756 | if (where != NULL && i->is_before) | |
3757 | { | |
967928e9 | 3758 | do |
53d25da6 | 3759 | where = where->prev; |
66c103b7 | 3760 | while (where != NULL && where->constraint < 0); |
53d25da6 AM |
3761 | } |
3762 | if (where == NULL) | |
3763 | { | |
66c103b7 AM |
3764 | einfo (_("%F%P: %s not found for insert\n"), i->where); |
3765 | return; | |
53d25da6 AM |
3766 | } |
3767 | ||
3768 | /* Deal with reordering the output section statement list. */ | |
3769 | if (last_os != NULL) | |
3770 | { | |
3771 | asection *first_sec, *last_sec; | |
29183214 | 3772 | struct lang_output_section_statement_struct **next; |
53d25da6 AM |
3773 | |
3774 | /* Snip out the output sections we are moving. */ | |
3775 | first_os->prev->next = last_os->next; | |
3776 | if (last_os->next == NULL) | |
29183214 L |
3777 | { |
3778 | next = &first_os->prev->next; | |
3779 | lang_output_section_statement.tail | |
3780 | = (lang_statement_union_type **) next; | |
3781 | } | |
53d25da6 AM |
3782 | else |
3783 | last_os->next->prev = first_os->prev; | |
3784 | /* Add them in at the new position. */ | |
3785 | last_os->next = where->next; | |
3786 | if (where->next == NULL) | |
29183214 L |
3787 | { |
3788 | next = &last_os->next; | |
3789 | lang_output_section_statement.tail | |
3790 | = (lang_statement_union_type **) next; | |
3791 | } | |
53d25da6 AM |
3792 | else |
3793 | where->next->prev = last_os; | |
3794 | first_os->prev = where; | |
3795 | where->next = first_os; | |
3796 | ||
3797 | /* Move the bfd sections in the same way. */ | |
3798 | first_sec = NULL; | |
3799 | last_sec = NULL; | |
3800 | for (os = first_os; os != NULL; os = os->next) | |
3801 | { | |
66c103b7 | 3802 | os->constraint = -2 - os->constraint; |
53d25da6 AM |
3803 | if (os->bfd_section != NULL |
3804 | && os->bfd_section->owner != NULL) | |
3805 | { | |
3806 | last_sec = os->bfd_section; | |
3807 | if (first_sec == NULL) | |
3808 | first_sec = last_sec; | |
3809 | } | |
3810 | if (os == last_os) | |
3811 | break; | |
3812 | } | |
3813 | if (last_sec != NULL) | |
3814 | { | |
3815 | asection *sec = where->bfd_section; | |
3816 | if (sec == NULL) | |
3817 | sec = output_prev_sec_find (where); | |
3818 | ||
3819 | /* The place we want to insert must come after the | |
3820 | sections we are moving. So if we find no | |
3821 | section or if the section is the same as our | |
3822 | last section, then no move is needed. */ | |
3823 | if (sec != NULL && sec != last_sec) | |
3824 | { | |
3825 | /* Trim them off. */ | |
3826 | if (first_sec->prev != NULL) | |
3827 | first_sec->prev->next = last_sec->next; | |
3828 | else | |
f13a99db | 3829 | link_info.output_bfd->sections = last_sec->next; |
53d25da6 AM |
3830 | if (last_sec->next != NULL) |
3831 | last_sec->next->prev = first_sec->prev; | |
3832 | else | |
f13a99db | 3833 | link_info.output_bfd->section_last = first_sec->prev; |
53d25da6 AM |
3834 | /* Add back. */ |
3835 | last_sec->next = sec->next; | |
3836 | if (sec->next != NULL) | |
3837 | sec->next->prev = last_sec; | |
3838 | else | |
f13a99db | 3839 | link_info.output_bfd->section_last = last_sec; |
53d25da6 AM |
3840 | first_sec->prev = sec; |
3841 | sec->next = first_sec; | |
3842 | } | |
3843 | } | |
3844 | ||
3845 | first_os = NULL; | |
3846 | last_os = NULL; | |
3847 | } | |
3848 | ||
3849 | ptr = insert_os_after (where); | |
3850 | /* Snip everything after the abs_section output statement we | |
3851 | know is at the start of the list, up to and including | |
3852 | the insert statement we are currently processing. */ | |
3853 | first = lang_output_section_statement.head->header.next; | |
3854 | lang_output_section_statement.head->header.next = (*s)->header.next; | |
3855 | /* Add them back where they belong. */ | |
3856 | *s = *ptr; | |
3857 | if (*s == NULL) | |
3858 | statement_list.tail = s; | |
3859 | *ptr = first; | |
3860 | s = &lang_output_section_statement.head; | |
252b5132 RH |
3861 | } |
3862 | } | |
66c103b7 AM |
3863 | |
3864 | /* Undo constraint twiddling. */ | |
3865 | for (os = first_os; os != NULL; os = os->next) | |
3866 | { | |
3867 | os->constraint = -2 - os->constraint; | |
3868 | if (os == last_os) | |
3869 | break; | |
3870 | } | |
252b5132 RH |
3871 | } |
3872 | ||
4bd5a393 AM |
3873 | /* An output section might have been removed after its statement was |
3874 | added. For example, ldemul_before_allocation can remove dynamic | |
3875 | sections if they turn out to be not needed. Clean them up here. */ | |
3876 | ||
8423293d | 3877 | void |
1579bae1 | 3878 | strip_excluded_output_sections (void) |
4bd5a393 | 3879 | { |
afd7a018 | 3880 | lang_output_section_statement_type *os; |
4bd5a393 | 3881 | |
046183de | 3882 | /* Run lang_size_sections (if not already done). */ |
e9ee469a AM |
3883 | if (expld.phase != lang_mark_phase_enum) |
3884 | { | |
3885 | expld.phase = lang_mark_phase_enum; | |
3886 | expld.dataseg.phase = exp_dataseg_none; | |
3887 | one_lang_size_sections_pass (NULL, FALSE); | |
3888 | lang_reset_memory_regions (); | |
3889 | } | |
3890 | ||
afd7a018 AM |
3891 | for (os = &lang_output_section_statement.head->output_section_statement; |
3892 | os != NULL; | |
3893 | os = os->next) | |
4bd5a393 | 3894 | { |
75ff4589 L |
3895 | asection *output_section; |
3896 | bfd_boolean exclude; | |
4bd5a393 | 3897 | |
66c103b7 | 3898 | if (os->constraint < 0) |
0841712e | 3899 | continue; |
8423293d | 3900 | |
75ff4589 L |
3901 | output_section = os->bfd_section; |
3902 | if (output_section == NULL) | |
8423293d AM |
3903 | continue; |
3904 | ||
32124d5b AM |
3905 | exclude = (output_section->rawsize == 0 |
3906 | && (output_section->flags & SEC_KEEP) == 0 | |
f13a99db | 3907 | && !bfd_section_removed_from_list (link_info.output_bfd, |
32124d5b AM |
3908 | output_section)); |
3909 | ||
3910 | /* Some sections have not yet been sized, notably .gnu.version, | |
3911 | .dynsym, .dynstr and .hash. These all have SEC_LINKER_CREATED | |
3912 | input sections, so don't drop output sections that have such | |
3913 | input sections unless they are also marked SEC_EXCLUDE. */ | |
3914 | if (exclude && output_section->map_head.s != NULL) | |
75ff4589 L |
3915 | { |
3916 | asection *s; | |
8423293d | 3917 | |
32124d5b | 3918 | for (s = output_section->map_head.s; s != NULL; s = s->map_head.s) |
b514e6a5 AM |
3919 | if ((s->flags & SEC_EXCLUDE) == 0 |
3920 | && ((s->flags & SEC_LINKER_CREATED) != 0 | |
3921 | || link_info.emitrelocations)) | |
e9ee469a AM |
3922 | { |
3923 | exclude = FALSE; | |
3924 | break; | |
3925 | } | |
75ff4589 | 3926 | } |
8423293d | 3927 | |
32124d5b | 3928 | if (exclude) |
4bd5a393 | 3929 | { |
e9ee469a AM |
3930 | /* We don't set bfd_section to NULL since bfd_section of the |
3931 | removed output section statement may still be used. */ | |
6d8bf25d | 3932 | if (!os->update_dot) |
74541ad4 | 3933 | os->ignored = TRUE; |
e9ee469a | 3934 | output_section->flags |= SEC_EXCLUDE; |
f13a99db AM |
3935 | bfd_section_list_remove (link_info.output_bfd, output_section); |
3936 | link_info.output_bfd->section_count--; | |
4bd5a393 AM |
3937 | } |
3938 | } | |
18cd5bce AM |
3939 | } |
3940 | ||
3941 | /* Called from ldwrite to clear out asection.map_head and | |
3942 | asection.map_tail for use as link_orders in ldwrite. | |
3943 | FIXME: Except for sh64elf.em which starts creating link_orders in | |
3944 | its after_allocation routine so needs to call it early. */ | |
3945 | ||
3946 | void | |
3947 | lang_clear_os_map (void) | |
3948 | { | |
3949 | lang_output_section_statement_type *os; | |
3950 | ||
3951 | if (map_head_is_link_order) | |
3952 | return; | |
3953 | ||
3954 | for (os = &lang_output_section_statement.head->output_section_statement; | |
3955 | os != NULL; | |
3956 | os = os->next) | |
3957 | { | |
3958 | asection *output_section; | |
3959 | ||
3960 | if (os->constraint < 0) | |
3961 | continue; | |
3962 | ||
3963 | output_section = os->bfd_section; | |
3964 | if (output_section == NULL) | |
3965 | continue; | |
3966 | ||
3967 | /* TODO: Don't just junk map_head.s, turn them into link_orders. */ | |
3968 | output_section->map_head.link_order = NULL; | |
3969 | output_section->map_tail.link_order = NULL; | |
3970 | } | |
8423293d AM |
3971 | |
3972 | /* Stop future calls to lang_add_section from messing with map_head | |
3973 | and map_tail link_order fields. */ | |
18cd5bce | 3974 | map_head_is_link_order = TRUE; |
4bd5a393 AM |
3975 | } |
3976 | ||
252b5132 | 3977 | static void |
1579bae1 AM |
3978 | print_output_section_statement |
3979 | (lang_output_section_statement_type *output_section_statement) | |
252b5132 RH |
3980 | { |
3981 | asection *section = output_section_statement->bfd_section; | |
3982 | int len; | |
3983 | ||
3984 | if (output_section_statement != abs_output_section) | |
3985 | { | |
3986 | minfo ("\n%s", output_section_statement->name); | |
3987 | ||
3988 | if (section != NULL) | |
3989 | { | |
3990 | print_dot = section->vma; | |
3991 | ||
3992 | len = strlen (output_section_statement->name); | |
3993 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
3994 | { | |
3995 | print_nl (); | |
3996 | len = 0; | |
3997 | } | |
3998 | while (len < SECTION_NAME_MAP_LENGTH) | |
3999 | { | |
4000 | print_space (); | |
4001 | ++len; | |
4002 | } | |
4003 | ||
eea6121a | 4004 | minfo ("0x%V %W", section->vma, section->size); |
252b5132 | 4005 | |
67f744f3 AM |
4006 | if (section->vma != section->lma) |
4007 | minfo (_(" load address 0x%V"), section->lma); | |
5590fba9 NC |
4008 | |
4009 | if (output_section_statement->update_dot_tree != NULL) | |
4010 | exp_fold_tree (output_section_statement->update_dot_tree, | |
4011 | bfd_abs_section_ptr, &print_dot); | |
252b5132 RH |
4012 | } |
4013 | ||
4014 | print_nl (); | |
4015 | } | |
4016 | ||
4017 | print_statement_list (output_section_statement->children.head, | |
4018 | output_section_statement); | |
4019 | } | |
4020 | ||
4021 | static void | |
1579bae1 AM |
4022 | print_assignment (lang_assignment_statement_type *assignment, |
4023 | lang_output_section_statement_type *output_section) | |
252b5132 | 4024 | { |
3b83e13a NC |
4025 | unsigned int i; |
4026 | bfd_boolean is_dot; | |
afd7a018 | 4027 | etree_type *tree; |
8658f989 | 4028 | asection *osec; |
252b5132 RH |
4029 | |
4030 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
4031 | print_space (); | |
4032 | ||
afd7a018 AM |
4033 | if (assignment->exp->type.node_class == etree_assert) |
4034 | { | |
3b83e13a | 4035 | is_dot = FALSE; |
afd7a018 AM |
4036 | tree = assignment->exp->assert_s.child; |
4037 | } | |
4038 | else | |
4039 | { | |
4040 | const char *dst = assignment->exp->assign.dst; | |
3b83e13a NC |
4041 | |
4042 | is_dot = (dst[0] == '.' && dst[1] == 0); | |
7dd9c6eb AM |
4043 | if (!is_dot) |
4044 | expld.assign_name = dst; | |
afd7a018 AM |
4045 | tree = assignment->exp->assign.src; |
4046 | } | |
4047 | ||
8658f989 AM |
4048 | osec = output_section->bfd_section; |
4049 | if (osec == NULL) | |
4050 | osec = bfd_abs_section_ptr; | |
c05b575a AB |
4051 | |
4052 | if (assignment->exp->type.node_class != etree_provide) | |
4053 | exp_fold_tree (tree, osec, &print_dot); | |
4054 | else | |
4055 | expld.result.valid_p = FALSE; | |
4056 | ||
e9ee469a | 4057 | if (expld.result.valid_p) |
7b17f854 | 4058 | { |
7b17f854 RS |
4059 | bfd_vma value; |
4060 | ||
4194268f AM |
4061 | if (assignment->exp->type.node_class == etree_assert |
4062 | || is_dot | |
4063 | || expld.assign_name != NULL) | |
3b83e13a | 4064 | { |
e9ee469a | 4065 | value = expld.result.value; |
10dbd1f3 | 4066 | |
7542af2a | 4067 | if (expld.result.section != NULL) |
e9ee469a | 4068 | value += expld.result.section->vma; |
7b17f854 | 4069 | |
3b83e13a NC |
4070 | minfo ("0x%V", value); |
4071 | if (is_dot) | |
4072 | print_dot = value; | |
4073 | } | |
4074 | else | |
4075 | { | |
4076 | struct bfd_link_hash_entry *h; | |
4077 | ||
4078 | h = bfd_link_hash_lookup (link_info.hash, assignment->exp->assign.dst, | |
4079 | FALSE, FALSE, TRUE); | |
4080 | if (h) | |
4081 | { | |
10dbd1f3 | 4082 | value = h->u.def.value; |
f37a7048 NS |
4083 | value += h->u.def.section->output_section->vma; |
4084 | value += h->u.def.section->output_offset; | |
3b83e13a NC |
4085 | |
4086 | minfo ("[0x%V]", value); | |
4087 | } | |
4088 | else | |
4089 | minfo ("[unresolved]"); | |
4090 | } | |
7b17f854 | 4091 | } |
252b5132 RH |
4092 | else |
4093 | { | |
c05b575a AB |
4094 | if (assignment->exp->type.node_class == etree_provide) |
4095 | minfo ("[!provide]"); | |
4096 | else | |
4097 | minfo ("*undef* "); | |
252b5132 RH |
4098 | #ifdef BFD64 |
4099 | minfo (" "); | |
4100 | #endif | |
4101 | } | |
4194268f | 4102 | expld.assign_name = NULL; |
252b5132 RH |
4103 | |
4104 | minfo (" "); | |
252b5132 | 4105 | exp_print_tree (assignment->exp); |
252b5132 RH |
4106 | print_nl (); |
4107 | } | |
4108 | ||
4109 | static void | |
1579bae1 | 4110 | print_input_statement (lang_input_statement_type *statm) |
252b5132 | 4111 | { |
967928e9 AM |
4112 | if (statm->filename != NULL |
4113 | && (statm->the_bfd == NULL | |
4114 | || (statm->the_bfd->flags & BFD_LINKER_CREATED) == 0)) | |
906e58ca | 4115 | fprintf (config.map_file, "LOAD %s\n", statm->filename); |
252b5132 RH |
4116 | } |
4117 | ||
4118 | /* Print all symbols defined in a particular section. This is called | |
35835446 | 4119 | via bfd_link_hash_traverse, or by print_all_symbols. */ |
252b5132 | 4120 | |
b34976b6 | 4121 | static bfd_boolean |
1579bae1 | 4122 | print_one_symbol (struct bfd_link_hash_entry *hash_entry, void *ptr) |
252b5132 | 4123 | { |
1e9cc1c2 | 4124 | asection *sec = (asection *) ptr; |
252b5132 RH |
4125 | |
4126 | if ((hash_entry->type == bfd_link_hash_defined | |
4127 | || hash_entry->type == bfd_link_hash_defweak) | |
4128 | && sec == hash_entry->u.def.section) | |
4129 | { | |
4130 | int i; | |
4131 | ||
4132 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
4133 | print_space (); | |
4134 | minfo ("0x%V ", | |
4135 | (hash_entry->u.def.value | |
4136 | + hash_entry->u.def.section->output_offset | |
4137 | + hash_entry->u.def.section->output_section->vma)); | |
4138 | ||
4139 | minfo (" %T\n", hash_entry->root.string); | |
4140 | } | |
4141 | ||
b34976b6 | 4142 | return TRUE; |
252b5132 RH |
4143 | } |
4144 | ||
02688209 TG |
4145 | static int |
4146 | hash_entry_addr_cmp (const void *a, const void *b) | |
4147 | { | |
4148 | const struct bfd_link_hash_entry *l = *(const struct bfd_link_hash_entry **)a; | |
4149 | const struct bfd_link_hash_entry *r = *(const struct bfd_link_hash_entry **)b; | |
4150 | ||
4151 | if (l->u.def.value < r->u.def.value) | |
4152 | return -1; | |
4153 | else if (l->u.def.value > r->u.def.value) | |
4154 | return 1; | |
4155 | else | |
4156 | return 0; | |
4157 | } | |
4158 | ||
35835446 | 4159 | static void |
e0f6802f | 4160 | print_all_symbols (asection *sec) |
35835446 | 4161 | { |
6fcc66ab AM |
4162 | input_section_userdata_type *ud |
4163 | = (input_section_userdata_type *) get_userdata (sec); | |
35835446 | 4164 | struct map_symbol_def *def; |
02688209 TG |
4165 | struct bfd_link_hash_entry **entries; |
4166 | unsigned int i; | |
35835446 | 4167 | |
afd7a018 AM |
4168 | if (!ud) |
4169 | return; | |
4170 | ||
35835446 | 4171 | *ud->map_symbol_def_tail = 0; |
1e0061d2 | 4172 | |
02688209 | 4173 | /* Sort the symbols by address. */ |
1e9cc1c2 NC |
4174 | entries = (struct bfd_link_hash_entry **) |
4175 | obstack_alloc (&map_obstack, ud->map_symbol_def_count * sizeof (*entries)); | |
02688209 TG |
4176 | |
4177 | for (i = 0, def = ud->map_symbol_def_head; def; def = def->next, i++) | |
4178 | entries[i] = def->entry; | |
4179 | ||
4180 | qsort (entries, ud->map_symbol_def_count, sizeof (*entries), | |
4724d37e | 4181 | hash_entry_addr_cmp); |
02688209 TG |
4182 | |
4183 | /* Print the symbols. */ | |
4184 | for (i = 0; i < ud->map_symbol_def_count; i++) | |
4185 | print_one_symbol (entries[i], sec); | |
4186 | ||
4187 | obstack_free (&map_obstack, entries); | |
35835446 JR |
4188 | } |
4189 | ||
252b5132 RH |
4190 | /* Print information about an input section to the map file. */ |
4191 | ||
4192 | static void | |
d64703c6 | 4193 | print_input_section (asection *i, bfd_boolean is_discarded) |
252b5132 | 4194 | { |
eea6121a | 4195 | bfd_size_type size = i->size; |
abe6ac95 AM |
4196 | int len; |
4197 | bfd_vma addr; | |
e5caa5e0 AM |
4198 | |
4199 | init_opb (); | |
4d4920ec | 4200 | |
abe6ac95 AM |
4201 | print_space (); |
4202 | minfo ("%s", i->name); | |
252b5132 | 4203 | |
abe6ac95 AM |
4204 | len = 1 + strlen (i->name); |
4205 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
4206 | { | |
4207 | print_nl (); | |
4208 | len = 0; | |
4209 | } | |
4210 | while (len < SECTION_NAME_MAP_LENGTH) | |
4211 | { | |
57ceae94 | 4212 | print_space (); |
abe6ac95 AM |
4213 | ++len; |
4214 | } | |
252b5132 | 4215 | |
f13a99db AM |
4216 | if (i->output_section != NULL |
4217 | && i->output_section->owner == link_info.output_bfd) | |
abe6ac95 AM |
4218 | addr = i->output_section->vma + i->output_offset; |
4219 | else | |
4220 | { | |
4221 | addr = print_dot; | |
d64703c6 TG |
4222 | if (!is_discarded) |
4223 | size = 0; | |
abe6ac95 | 4224 | } |
252b5132 | 4225 | |
fc90c280 | 4226 | minfo ("0x%V %W %B\n", addr, size, i->owner); |
252b5132 | 4227 | |
abe6ac95 AM |
4228 | if (size != i->rawsize && i->rawsize != 0) |
4229 | { | |
4230 | len = SECTION_NAME_MAP_LENGTH + 3; | |
252b5132 | 4231 | #ifdef BFD64 |
abe6ac95 | 4232 | len += 16; |
252b5132 | 4233 | #else |
abe6ac95 | 4234 | len += 8; |
252b5132 | 4235 | #endif |
abe6ac95 AM |
4236 | while (len > 0) |
4237 | { | |
4238 | print_space (); | |
4239 | --len; | |
57ceae94 AM |
4240 | } |
4241 | ||
abe6ac95 AM |
4242 | minfo (_("%W (size before relaxing)\n"), i->rawsize); |
4243 | } | |
252b5132 | 4244 | |
f13a99db AM |
4245 | if (i->output_section != NULL |
4246 | && i->output_section->owner == link_info.output_bfd) | |
abe6ac95 | 4247 | { |
c0f00686 | 4248 | if (link_info.reduce_memory_overheads) |
abe6ac95 AM |
4249 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, i); |
4250 | else | |
4251 | print_all_symbols (i); | |
4252 | ||
5590fba9 NC |
4253 | /* Update print_dot, but make sure that we do not move it |
4254 | backwards - this could happen if we have overlays and a | |
4255 | later overlay is shorter than an earier one. */ | |
4256 | if (addr + TO_ADDR (size) > print_dot) | |
4257 | print_dot = addr + TO_ADDR (size); | |
252b5132 RH |
4258 | } |
4259 | } | |
4260 | ||
4261 | static void | |
1579bae1 | 4262 | print_fill_statement (lang_fill_statement_type *fill) |
252b5132 | 4263 | { |
2c382fb6 AM |
4264 | size_t size; |
4265 | unsigned char *p; | |
4266 | fputs (" FILL mask 0x", config.map_file); | |
4267 | for (p = fill->fill->data, size = fill->fill->size; size != 0; p++, size--) | |
4268 | fprintf (config.map_file, "%02x", *p); | |
4269 | fputs ("\n", config.map_file); | |
252b5132 RH |
4270 | } |
4271 | ||
4272 | static void | |
1579bae1 | 4273 | print_data_statement (lang_data_statement_type *data) |
252b5132 RH |
4274 | { |
4275 | int i; | |
4276 | bfd_vma addr; | |
4277 | bfd_size_type size; | |
4278 | const char *name; | |
4279 | ||
e5caa5e0 | 4280 | init_opb (); |
252b5132 RH |
4281 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
4282 | print_space (); | |
4283 | ||
7fabd029 | 4284 | addr = data->output_offset; |
252b5132 RH |
4285 | if (data->output_section != NULL) |
4286 | addr += data->output_section->vma; | |
4287 | ||
4288 | switch (data->type) | |
4289 | { | |
4290 | default: | |
4291 | abort (); | |
4292 | case BYTE: | |
4293 | size = BYTE_SIZE; | |
4294 | name = "BYTE"; | |
4295 | break; | |
4296 | case SHORT: | |
4297 | size = SHORT_SIZE; | |
4298 | name = "SHORT"; | |
4299 | break; | |
4300 | case LONG: | |
4301 | size = LONG_SIZE; | |
4302 | name = "LONG"; | |
4303 | break; | |
4304 | case QUAD: | |
4305 | size = QUAD_SIZE; | |
4306 | name = "QUAD"; | |
4307 | break; | |
4308 | case SQUAD: | |
4309 | size = QUAD_SIZE; | |
4310 | name = "SQUAD"; | |
4311 | break; | |
4312 | } | |
4313 | ||
4314 | minfo ("0x%V %W %s 0x%v", addr, size, name, data->value); | |
4315 | ||
4316 | if (data->exp->type.node_class != etree_value) | |
4317 | { | |
4318 | print_space (); | |
4319 | exp_print_tree (data->exp); | |
4320 | } | |
4321 | ||
4322 | print_nl (); | |
4323 | ||
e5caa5e0 | 4324 | print_dot = addr + TO_ADDR (size); |
252b5132 RH |
4325 | } |
4326 | ||
4327 | /* Print an address statement. These are generated by options like | |
4328 | -Ttext. */ | |
4329 | ||
4330 | static void | |
1579bae1 | 4331 | print_address_statement (lang_address_statement_type *address) |
252b5132 RH |
4332 | { |
4333 | minfo (_("Address of section %s set to "), address->section_name); | |
4334 | exp_print_tree (address->address); | |
4335 | print_nl (); | |
4336 | } | |
4337 | ||
4338 | /* Print a reloc statement. */ | |
4339 | ||
4340 | static void | |
1579bae1 | 4341 | print_reloc_statement (lang_reloc_statement_type *reloc) |
252b5132 RH |
4342 | { |
4343 | int i; | |
4344 | bfd_vma addr; | |
4345 | bfd_size_type size; | |
4346 | ||
e5caa5e0 | 4347 | init_opb (); |
252b5132 RH |
4348 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
4349 | print_space (); | |
4350 | ||
7fabd029 | 4351 | addr = reloc->output_offset; |
252b5132 RH |
4352 | if (reloc->output_section != NULL) |
4353 | addr += reloc->output_section->vma; | |
4354 | ||
4355 | size = bfd_get_reloc_size (reloc->howto); | |
4356 | ||
4357 | minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name); | |
4358 | ||
4359 | if (reloc->name != NULL) | |
4360 | minfo ("%s+", reloc->name); | |
4361 | else | |
4362 | minfo ("%s+", reloc->section->name); | |
4363 | ||
4364 | exp_print_tree (reloc->addend_exp); | |
4365 | ||
4366 | print_nl (); | |
4367 | ||
e5caa5e0 | 4368 | print_dot = addr + TO_ADDR (size); |
5f992e62 | 4369 | } |
252b5132 RH |
4370 | |
4371 | static void | |
1579bae1 | 4372 | print_padding_statement (lang_padding_statement_type *s) |
252b5132 RH |
4373 | { |
4374 | int len; | |
4375 | bfd_vma addr; | |
4376 | ||
e5caa5e0 | 4377 | init_opb (); |
252b5132 RH |
4378 | minfo (" *fill*"); |
4379 | ||
4380 | len = sizeof " *fill*" - 1; | |
4381 | while (len < SECTION_NAME_MAP_LENGTH) | |
4382 | { | |
4383 | print_space (); | |
4384 | ++len; | |
4385 | } | |
4386 | ||
4387 | addr = s->output_offset; | |
4388 | if (s->output_section != NULL) | |
4389 | addr += s->output_section->vma; | |
5f9b8920 | 4390 | minfo ("0x%V %W ", addr, (bfd_vma) s->size); |
252b5132 | 4391 | |
2c382fb6 AM |
4392 | if (s->fill->size != 0) |
4393 | { | |
4394 | size_t size; | |
4395 | unsigned char *p; | |
4396 | for (p = s->fill->data, size = s->fill->size; size != 0; p++, size--) | |
4397 | fprintf (config.map_file, "%02x", *p); | |
4398 | } | |
252b5132 RH |
4399 | |
4400 | print_nl (); | |
4401 | ||
e5caa5e0 | 4402 | print_dot = addr + TO_ADDR (s->size); |
252b5132 RH |
4403 | } |
4404 | ||
4405 | static void | |
1579bae1 AM |
4406 | print_wild_statement (lang_wild_statement_type *w, |
4407 | lang_output_section_statement_type *os) | |
252b5132 | 4408 | { |
b6bf44ba AM |
4409 | struct wildcard_list *sec; |
4410 | ||
252b5132 RH |
4411 | print_space (); |
4412 | ||
4413 | if (w->filenames_sorted) | |
4414 | minfo ("SORT("); | |
08da4cac | 4415 | if (w->filename != NULL) |
252b5132 RH |
4416 | minfo ("%s", w->filename); |
4417 | else | |
4418 | minfo ("*"); | |
4419 | if (w->filenames_sorted) | |
4420 | minfo (")"); | |
4421 | ||
4422 | minfo ("("); | |
b6bf44ba AM |
4423 | for (sec = w->section_list; sec; sec = sec->next) |
4424 | { | |
4425 | if (sec->spec.sorted) | |
4426 | minfo ("SORT("); | |
4427 | if (sec->spec.exclude_name_list != NULL) | |
4428 | { | |
4429 | name_list *tmp; | |
34786259 | 4430 | minfo ("EXCLUDE_FILE(%s", sec->spec.exclude_name_list->name); |
b6bf44ba | 4431 | for (tmp = sec->spec.exclude_name_list->next; tmp; tmp = tmp->next) |
34786259 AM |
4432 | minfo (" %s", tmp->name); |
4433 | minfo (") "); | |
b6bf44ba AM |
4434 | } |
4435 | if (sec->spec.name != NULL) | |
4436 | minfo ("%s", sec->spec.name); | |
4437 | else | |
4438 | minfo ("*"); | |
4439 | if (sec->spec.sorted) | |
4440 | minfo (")"); | |
34786259 AM |
4441 | if (sec->next) |
4442 | minfo (" "); | |
b6bf44ba | 4443 | } |
252b5132 RH |
4444 | minfo (")"); |
4445 | ||
4446 | print_nl (); | |
4447 | ||
4448 | print_statement_list (w->children.head, os); | |
4449 | } | |
4450 | ||
4451 | /* Print a group statement. */ | |
4452 | ||
4453 | static void | |
1579bae1 AM |
4454 | print_group (lang_group_statement_type *s, |
4455 | lang_output_section_statement_type *os) | |
252b5132 RH |
4456 | { |
4457 | fprintf (config.map_file, "START GROUP\n"); | |
4458 | print_statement_list (s->children.head, os); | |
4459 | fprintf (config.map_file, "END GROUP\n"); | |
4460 | } | |
4461 | ||
4462 | /* Print the list of statements in S. | |
4463 | This can be called for any statement type. */ | |
4464 | ||
4465 | static void | |
1579bae1 AM |
4466 | print_statement_list (lang_statement_union_type *s, |
4467 | lang_output_section_statement_type *os) | |
252b5132 RH |
4468 | { |
4469 | while (s != NULL) | |
4470 | { | |
4471 | print_statement (s, os); | |
bba1a0c0 | 4472 | s = s->header.next; |
252b5132 RH |
4473 | } |
4474 | } | |
4475 | ||
4476 | /* Print the first statement in statement list S. | |
4477 | This can be called for any statement type. */ | |
4478 | ||
4479 | static void | |
1579bae1 AM |
4480 | print_statement (lang_statement_union_type *s, |
4481 | lang_output_section_statement_type *os) | |
252b5132 RH |
4482 | { |
4483 | switch (s->header.type) | |
4484 | { | |
4485 | default: | |
4486 | fprintf (config.map_file, _("Fail with %d\n"), s->header.type); | |
4487 | FAIL (); | |
4488 | break; | |
4489 | case lang_constructors_statement_enum: | |
4490 | if (constructor_list.head != NULL) | |
4491 | { | |
4492 | if (constructors_sorted) | |
4493 | minfo (" SORT (CONSTRUCTORS)\n"); | |
4494 | else | |
4495 | minfo (" CONSTRUCTORS\n"); | |
4496 | print_statement_list (constructor_list.head, os); | |
4497 | } | |
4498 | break; | |
4499 | case lang_wild_statement_enum: | |
4500 | print_wild_statement (&s->wild_statement, os); | |
4501 | break; | |
4502 | case lang_address_statement_enum: | |
4503 | print_address_statement (&s->address_statement); | |
4504 | break; | |
4505 | case lang_object_symbols_statement_enum: | |
4506 | minfo (" CREATE_OBJECT_SYMBOLS\n"); | |
4507 | break; | |
4508 | case lang_fill_statement_enum: | |
4509 | print_fill_statement (&s->fill_statement); | |
4510 | break; | |
4511 | case lang_data_statement_enum: | |
4512 | print_data_statement (&s->data_statement); | |
4513 | break; | |
4514 | case lang_reloc_statement_enum: | |
4515 | print_reloc_statement (&s->reloc_statement); | |
4516 | break; | |
4517 | case lang_input_section_enum: | |
d64703c6 | 4518 | print_input_section (s->input_section.section, FALSE); |
252b5132 RH |
4519 | break; |
4520 | case lang_padding_statement_enum: | |
4521 | print_padding_statement (&s->padding_statement); | |
4522 | break; | |
4523 | case lang_output_section_statement_enum: | |
4524 | print_output_section_statement (&s->output_section_statement); | |
4525 | break; | |
4526 | case lang_assignment_statement_enum: | |
4527 | print_assignment (&s->assignment_statement, os); | |
4528 | break; | |
4529 | case lang_target_statement_enum: | |
4530 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
4531 | break; | |
4532 | case lang_output_statement_enum: | |
4533 | minfo ("OUTPUT(%s", s->output_statement.name); | |
4534 | if (output_target != NULL) | |
4535 | minfo (" %s", output_target); | |
4536 | minfo (")\n"); | |
4537 | break; | |
4538 | case lang_input_statement_enum: | |
4539 | print_input_statement (&s->input_statement); | |
4540 | break; | |
4541 | case lang_group_statement_enum: | |
4542 | print_group (&s->group_statement, os); | |
4543 | break; | |
53d25da6 AM |
4544 | case lang_insert_statement_enum: |
4545 | minfo ("INSERT %s %s\n", | |
4546 | s->insert_statement.is_before ? "BEFORE" : "AFTER", | |
4547 | s->insert_statement.where); | |
4548 | break; | |
252b5132 RH |
4549 | } |
4550 | } | |
4551 | ||
4552 | static void | |
1579bae1 | 4553 | print_statements (void) |
252b5132 RH |
4554 | { |
4555 | print_statement_list (statement_list.head, abs_output_section); | |
4556 | } | |
4557 | ||
4558 | /* Print the first N statements in statement list S to STDERR. | |
4559 | If N == 0, nothing is printed. | |
4560 | If N < 0, the entire list is printed. | |
4561 | Intended to be called from GDB. */ | |
4562 | ||
4563 | void | |
1579bae1 | 4564 | dprint_statement (lang_statement_union_type *s, int n) |
252b5132 RH |
4565 | { |
4566 | FILE *map_save = config.map_file; | |
4567 | ||
4568 | config.map_file = stderr; | |
4569 | ||
4570 | if (n < 0) | |
4571 | print_statement_list (s, abs_output_section); | |
4572 | else | |
4573 | { | |
4574 | while (s && --n >= 0) | |
4575 | { | |
4576 | print_statement (s, abs_output_section); | |
bba1a0c0 | 4577 | s = s->header.next; |
252b5132 RH |
4578 | } |
4579 | } | |
4580 | ||
4581 | config.map_file = map_save; | |
4582 | } | |
4583 | ||
b3327aad | 4584 | static void |
1579bae1 AM |
4585 | insert_pad (lang_statement_union_type **ptr, |
4586 | fill_type *fill, | |
1a69ff95 | 4587 | bfd_size_type alignment_needed, |
1579bae1 AM |
4588 | asection *output_section, |
4589 | bfd_vma dot) | |
252b5132 | 4590 | { |
b7761f11 | 4591 | static fill_type zero_fill; |
e9ee469a | 4592 | lang_statement_union_type *pad = NULL; |
b3327aad | 4593 | |
e9ee469a AM |
4594 | if (ptr != &statement_list.head) |
4595 | pad = ((lang_statement_union_type *) | |
4596 | ((char *) ptr - offsetof (lang_statement_union_type, header.next))); | |
4597 | if (pad != NULL | |
4598 | && pad->header.type == lang_padding_statement_enum | |
4599 | && pad->padding_statement.output_section == output_section) | |
4600 | { | |
4601 | /* Use the existing pad statement. */ | |
4602 | } | |
4603 | else if ((pad = *ptr) != NULL | |
906e58ca NC |
4604 | && pad->header.type == lang_padding_statement_enum |
4605 | && pad->padding_statement.output_section == output_section) | |
252b5132 | 4606 | { |
e9ee469a | 4607 | /* Use the existing pad statement. */ |
252b5132 | 4608 | } |
b3327aad | 4609 | else |
252b5132 | 4610 | { |
b3327aad | 4611 | /* Make a new padding statement, linked into existing chain. */ |
1e9cc1c2 | 4612 | pad = (lang_statement_union_type *) |
4724d37e | 4613 | stat_alloc (sizeof (lang_padding_statement_type)); |
b3327aad AM |
4614 | pad->header.next = *ptr; |
4615 | *ptr = pad; | |
4616 | pad->header.type = lang_padding_statement_enum; | |
4617 | pad->padding_statement.output_section = output_section; | |
1579bae1 | 4618 | if (fill == NULL) |
2c382fb6 | 4619 | fill = &zero_fill; |
b3327aad | 4620 | pad->padding_statement.fill = fill; |
252b5132 | 4621 | } |
b3327aad AM |
4622 | pad->padding_statement.output_offset = dot - output_section->vma; |
4623 | pad->padding_statement.size = alignment_needed; | |
aa4c3319 AM |
4624 | output_section->size = TO_SIZE (dot + TO_ADDR (alignment_needed) |
4625 | - output_section->vma); | |
252b5132 RH |
4626 | } |
4627 | ||
08da4cac KH |
4628 | /* Work out how much this section will move the dot point. */ |
4629 | ||
252b5132 | 4630 | static bfd_vma |
6feb9908 AM |
4631 | size_input_section |
4632 | (lang_statement_union_type **this_ptr, | |
4633 | lang_output_section_statement_type *output_section_statement, | |
4634 | fill_type *fill, | |
4635 | bfd_vma dot) | |
252b5132 RH |
4636 | { |
4637 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
4638 | asection *i = is->section; | |
93d1b056 | 4639 | asection *o = output_section_statement->bfd_section; |
252b5132 | 4640 | |
93d1b056 AM |
4641 | if (i->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
4642 | i->output_offset = i->vma - o->vma; | |
4643 | else if ((i->flags & SEC_EXCLUDE) != 0) | |
4644 | i->output_offset = dot - o->vma; | |
4645 | else | |
252b5132 | 4646 | { |
1a69ff95 | 4647 | bfd_size_type alignment_needed; |
b3327aad AM |
4648 | |
4649 | /* Align this section first to the input sections requirement, | |
4650 | then to the output section's requirement. If this alignment | |
4651 | is greater than any seen before, then record it too. Perform | |
4652 | the alignment by inserting a magic 'padding' statement. */ | |
4653 | ||
252b5132 | 4654 | if (output_section_statement->subsection_alignment != -1) |
b3327aad AM |
4655 | i->alignment_power = output_section_statement->subsection_alignment; |
4656 | ||
b3327aad AM |
4657 | if (o->alignment_power < i->alignment_power) |
4658 | o->alignment_power = i->alignment_power; | |
252b5132 | 4659 | |
b3327aad AM |
4660 | alignment_needed = align_power (dot, i->alignment_power) - dot; |
4661 | ||
4662 | if (alignment_needed != 0) | |
4663 | { | |
e5caa5e0 | 4664 | insert_pad (this_ptr, fill, TO_SIZE (alignment_needed), o, dot); |
b3327aad AM |
4665 | dot += alignment_needed; |
4666 | } | |
252b5132 | 4667 | |
08da4cac | 4668 | /* Remember where in the output section this input section goes. */ |
b3327aad | 4669 | i->output_offset = dot - o->vma; |
252b5132 | 4670 | |
08da4cac | 4671 | /* Mark how big the output section must be to contain this now. */ |
eea6121a AM |
4672 | dot += TO_ADDR (i->size); |
4673 | o->size = TO_SIZE (dot - o->vma); | |
252b5132 | 4674 | } |
252b5132 RH |
4675 | |
4676 | return dot; | |
4677 | } | |
4678 | ||
a87dd97a AM |
4679 | struct check_sec |
4680 | { | |
4681 | asection *sec; | |
4682 | bfd_boolean warned; | |
4683 | }; | |
4684 | ||
5daa8fe7 L |
4685 | static int |
4686 | sort_sections_by_lma (const void *arg1, const void *arg2) | |
4687 | { | |
a87dd97a AM |
4688 | const asection *sec1 = ((const struct check_sec *) arg1)->sec; |
4689 | const asection *sec2 = ((const struct check_sec *) arg2)->sec; | |
4690 | ||
4691 | if (sec1->lma < sec2->lma) | |
4692 | return -1; | |
4693 | else if (sec1->lma > sec2->lma) | |
4694 | return 1; | |
4695 | else if (sec1->id < sec2->id) | |
4696 | return -1; | |
4697 | else if (sec1->id > sec2->id) | |
4698 | return 1; | |
4699 | ||
4700 | return 0; | |
4701 | } | |
4702 | ||
4703 | static int | |
4704 | sort_sections_by_vma (const void *arg1, const void *arg2) | |
4705 | { | |
4706 | const asection *sec1 = ((const struct check_sec *) arg1)->sec; | |
4707 | const asection *sec2 = ((const struct check_sec *) arg2)->sec; | |
5daa8fe7 | 4708 | |
a87dd97a | 4709 | if (sec1->vma < sec2->vma) |
5daa8fe7 | 4710 | return -1; |
a87dd97a | 4711 | else if (sec1->vma > sec2->vma) |
5daa8fe7 | 4712 | return 1; |
7f6a71ff JM |
4713 | else if (sec1->id < sec2->id) |
4714 | return -1; | |
4715 | else if (sec1->id > sec2->id) | |
4716 | return 1; | |
5daa8fe7 L |
4717 | |
4718 | return 0; | |
4719 | } | |
4720 | ||
2e4a7aea AM |
4721 | #define IS_TBSS(s) \ |
4722 | ((s->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == SEC_THREAD_LOCAL) | |
4723 | ||
eea6121a | 4724 | #define IGNORE_SECTION(s) \ |
2e4a7aea | 4725 | ((s->flags & SEC_ALLOC) == 0 || IS_TBSS (s)) |
d1778b88 | 4726 | |
252b5132 | 4727 | /* Check to see if any allocated sections overlap with other allocated |
afd7a018 | 4728 | sections. This can happen if a linker script specifies the output |
20e56351 DJ |
4729 | section addresses of the two sections. Also check whether any memory |
4730 | region has overflowed. */ | |
08da4cac | 4731 | |
252b5132 | 4732 | static void |
1579bae1 | 4733 | lang_check_section_addresses (void) |
252b5132 | 4734 | { |
f4427a75 | 4735 | asection *s, *p; |
a87dd97a AM |
4736 | struct check_sec *sections; |
4737 | size_t i, count; | |
5daa8fe7 L |
4738 | bfd_vma s_start; |
4739 | bfd_vma s_end; | |
a87dd97a AM |
4740 | bfd_vma p_start = 0; |
4741 | bfd_vma p_end = 0; | |
20e56351 | 4742 | lang_memory_region_type *m; |
5daa8fe7 | 4743 | |
f13a99db | 4744 | if (bfd_count_sections (link_info.output_bfd) <= 1) |
5daa8fe7 L |
4745 | return; |
4746 | ||
a87dd97a AM |
4747 | count = bfd_count_sections (link_info.output_bfd); |
4748 | sections = XNEWVEC (struct check_sec, count); | |
252b5132 RH |
4749 | |
4750 | /* Scan all sections in the output list. */ | |
5daa8fe7 | 4751 | count = 0; |
f13a99db | 4752 | for (s = link_info.output_bfd->sections; s != NULL; s = s->next) |
33275c22 | 4753 | { |
a87dd97a | 4754 | if (IGNORE_SECTION (s) |
ec6d26be | 4755 | || s->size == 0) |
33275c22 | 4756 | continue; |
5f992e62 | 4757 | |
a87dd97a AM |
4758 | sections[count].sec = s; |
4759 | sections[count].warned = FALSE; | |
5daa8fe7 L |
4760 | count++; |
4761 | } | |
329c1c86 | 4762 | |
5daa8fe7 L |
4763 | if (count <= 1) |
4764 | return; | |
5f992e62 | 4765 | |
a87dd97a | 4766 | qsort (sections, count, sizeof (*sections), sort_sections_by_lma); |
5f992e62 | 4767 | |
a87dd97a AM |
4768 | /* First check sections LMAs. There should be no overlap of LMAs on |
4769 | loadable sections, even with overlays. */ | |
4770 | for (p = NULL, i = 0; i < count; i++) | |
5daa8fe7 | 4771 | { |
a87dd97a AM |
4772 | s = sections[i].sec; |
4773 | if ((s->flags & SEC_LOAD) != 0) | |
4774 | { | |
4775 | s_start = s->lma; | |
4776 | s_end = s_start + TO_ADDR (s->size) - 1; | |
4777 | ||
4778 | /* Look for an overlap. We have sorted sections by lma, so | |
4779 | we know that s_start >= p_start. Besides the obvious | |
4780 | case of overlap when the current section starts before | |
4781 | the previous one ends, we also must have overlap if the | |
4782 | previous section wraps around the address space. */ | |
4783 | if (p != NULL | |
4784 | && (s_start <= p_end | |
4785 | || p_end < p_start)) | |
4786 | { | |
4787 | einfo (_("%X%P: section %s LMA [%V,%V]" | |
4788 | " overlaps section %s LMA [%V,%V]\n"), | |
4789 | s->name, s_start, s_end, p->name, p_start, p_end); | |
4790 | sections[i].warned = TRUE; | |
4791 | } | |
4792 | p = s; | |
4793 | p_start = s_start; | |
4794 | p_end = s_end; | |
4795 | } | |
4796 | } | |
4797 | ||
4798 | /* Now check sections VMAs if no overlays were detected. */ | |
4799 | if (!maybe_overlays) | |
4800 | { | |
4801 | qsort (sections, count, sizeof (*sections), sort_sections_by_vma); | |
4802 | ||
4803 | for (p = NULL, i = 0; i < count; i++) | |
4804 | { | |
4805 | s = sections[i].sec; | |
4806 | s_start = s->vma; | |
4807 | s_end = s_start + TO_ADDR (s->size) - 1; | |
4808 | ||
4809 | if (p != NULL | |
4810 | && !sections[i].warned | |
4811 | && (s_start <= p_end | |
4812 | || p_end < p_start)) | |
4813 | einfo (_("%X%P: section %s VMA [%V,%V]" | |
4814 | " overlaps section %s VMA [%V,%V]\n"), | |
4815 | s->name, s_start, s_end, p->name, p_start, p_end); | |
4816 | p = s; | |
4817 | p_start = s_start; | |
4818 | p_end = s_end; | |
4819 | } | |
33275c22 | 4820 | } |
5daa8fe7 L |
4821 | |
4822 | free (sections); | |
20e56351 DJ |
4823 | |
4824 | /* If any memory region has overflowed, report by how much. | |
4825 | We do not issue this diagnostic for regions that had sections | |
4826 | explicitly placed outside their bounds; os_region_check's | |
4827 | diagnostics are adequate for that case. | |
4828 | ||
4829 | FIXME: It is conceivable that m->current - (m->origin + m->length) | |
4830 | might overflow a 32-bit integer. There is, alas, no way to print | |
4831 | a bfd_vma quantity in decimal. */ | |
4832 | for (m = lang_memory_region_list; m; m = m->next) | |
4833 | if (m->had_full_message) | |
4a93e180 NC |
4834 | einfo (_("%X%P: region `%s' overflowed by %ld bytes\n"), |
4835 | m->name_list.name, (long)(m->current - (m->origin + m->length))); | |
20e56351 | 4836 | |
252b5132 RH |
4837 | } |
4838 | ||
562d3460 TW |
4839 | /* Make sure the new address is within the region. We explicitly permit the |
4840 | current address to be at the exact end of the region when the address is | |
4841 | non-zero, in case the region is at the end of addressable memory and the | |
5f992e62 | 4842 | calculation wraps around. */ |
562d3460 TW |
4843 | |
4844 | static void | |
1579bae1 | 4845 | os_region_check (lang_output_section_statement_type *os, |
6bdafbeb | 4846 | lang_memory_region_type *region, |
1579bae1 | 4847 | etree_type *tree, |
91d6fa6a | 4848 | bfd_vma rbase) |
562d3460 TW |
4849 | { |
4850 | if ((region->current < region->origin | |
4851 | || (region->current - region->origin > region->length)) | |
4852 | && ((region->current != region->origin + region->length) | |
91d6fa6a | 4853 | || rbase == 0)) |
562d3460 | 4854 | { |
1579bae1 | 4855 | if (tree != NULL) |
b7a26f91 | 4856 | { |
4a93e180 NC |
4857 | einfo (_("%X%P: address 0x%v of %B section `%s'" |
4858 | " is not within region `%s'\n"), | |
b7a26f91 KH |
4859 | region->current, |
4860 | os->bfd_section->owner, | |
4861 | os->bfd_section->name, | |
4a93e180 | 4862 | region->name_list.name); |
b7a26f91 | 4863 | } |
20e56351 | 4864 | else if (!region->had_full_message) |
b7a26f91 | 4865 | { |
20e56351 DJ |
4866 | region->had_full_message = TRUE; |
4867 | ||
4a93e180 | 4868 | einfo (_("%X%P: %B section `%s' will not fit in region `%s'\n"), |
b7a26f91 | 4869 | os->bfd_section->owner, |
20e56351 | 4870 | os->bfd_section->name, |
4a93e180 | 4871 | region->name_list.name); |
b7a26f91 | 4872 | } |
562d3460 TW |
4873 | } |
4874 | } | |
4875 | ||
252b5132 RH |
4876 | /* Set the sizes for all the output sections. */ |
4877 | ||
2d20f7bf | 4878 | static bfd_vma |
1579bae1 | 4879 | lang_size_sections_1 |
e535e147 | 4880 | (lang_statement_union_type **prev, |
1579bae1 | 4881 | lang_output_section_statement_type *output_section_statement, |
1579bae1 AM |
4882 | fill_type *fill, |
4883 | bfd_vma dot, | |
4884 | bfd_boolean *relax, | |
4885 | bfd_boolean check_regions) | |
252b5132 | 4886 | { |
e535e147 AM |
4887 | lang_statement_union_type *s; |
4888 | ||
252b5132 | 4889 | /* Size up the sections from their constituent parts. */ |
e535e147 | 4890 | for (s = *prev; s != NULL; s = s->header.next) |
252b5132 RH |
4891 | { |
4892 | switch (s->header.type) | |
4893 | { | |
4894 | case lang_output_section_statement_enum: | |
4895 | { | |
13075d04 | 4896 | bfd_vma newdot, after, dotdelta; |
d1778b88 | 4897 | lang_output_section_statement_type *os; |
cde9e0be | 4898 | lang_memory_region_type *r; |
c5b0a9ef | 4899 | int section_alignment = 0; |
252b5132 | 4900 | |
d1778b88 | 4901 | os = &s->output_section_statement; |
8658f989 AM |
4902 | if (os->constraint == -1) |
4903 | break; | |
4904 | ||
fd68d03d AM |
4905 | /* FIXME: We shouldn't need to zero section vmas for ld -r |
4906 | here, in lang_insert_orphan, or in the default linker scripts. | |
4907 | This is covering for coff backend linker bugs. See PR6945. */ | |
4908 | if (os->addr_tree == NULL | |
0e1862bb | 4909 | && bfd_link_relocatable (&link_info) |
fd68d03d AM |
4910 | && (bfd_get_flavour (link_info.output_bfd) |
4911 | == bfd_target_coff_flavour)) | |
eceda120 | 4912 | os->addr_tree = exp_intop (0); |
a5df8c84 AM |
4913 | if (os->addr_tree != NULL) |
4914 | { | |
cde9e0be | 4915 | os->processed_vma = FALSE; |
a5df8c84 | 4916 | exp_fold_tree (os->addr_tree, bfd_abs_section_ptr, &dot); |
a5df8c84 | 4917 | |
3bf9618b | 4918 | if (expld.result.valid_p) |
7542af2a AM |
4919 | { |
4920 | dot = expld.result.value; | |
4921 | if (expld.result.section != NULL) | |
4922 | dot += expld.result.section->vma; | |
4923 | } | |
3bf9618b | 4924 | else if (expld.phase != lang_mark_phase_enum) |
a5df8c84 AM |
4925 | einfo (_("%F%S: non constant or forward reference" |
4926 | " address expression for section %s\n"), | |
dab69f68 | 4927 | os->addr_tree, os->name); |
a5df8c84 AM |
4928 | } |
4929 | ||
e9ee469a | 4930 | if (os->bfd_section == NULL) |
75ff4589 | 4931 | /* This section was removed or never actually created. */ |
252b5132 RH |
4932 | break; |
4933 | ||
4934 | /* If this is a COFF shared library section, use the size and | |
4935 | address from the input section. FIXME: This is COFF | |
4936 | specific; it would be cleaner if there were some other way | |
4937 | to do this, but nothing simple comes to mind. */ | |
f13a99db AM |
4938 | if (((bfd_get_flavour (link_info.output_bfd) |
4939 | == bfd_target_ecoff_flavour) | |
4940 | || (bfd_get_flavour (link_info.output_bfd) | |
4941 | == bfd_target_coff_flavour)) | |
ebe372c1 | 4942 | && (os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) |
252b5132 | 4943 | { |
08da4cac | 4944 | asection *input; |
252b5132 RH |
4945 | |
4946 | if (os->children.head == NULL | |
bba1a0c0 | 4947 | || os->children.head->header.next != NULL |
6feb9908 AM |
4948 | || (os->children.head->header.type |
4949 | != lang_input_section_enum)) | |
4950 | einfo (_("%P%X: Internal error on COFF shared library" | |
4951 | " section %s\n"), os->name); | |
252b5132 RH |
4952 | |
4953 | input = os->children.head->input_section.section; | |
4954 | bfd_set_section_vma (os->bfd_section->owner, | |
4955 | os->bfd_section, | |
4956 | bfd_section_vma (input->owner, input)); | |
eea6121a | 4957 | os->bfd_section->size = input->size; |
252b5132 RH |
4958 | break; |
4959 | } | |
4960 | ||
a5df8c84 | 4961 | newdot = dot; |
13075d04 | 4962 | dotdelta = 0; |
252b5132 RH |
4963 | if (bfd_is_abs_section (os->bfd_section)) |
4964 | { | |
4965 | /* No matter what happens, an abs section starts at zero. */ | |
4966 | ASSERT (os->bfd_section->vma == 0); | |
4967 | } | |
4968 | else | |
4969 | { | |
1579bae1 | 4970 | if (os->addr_tree == NULL) |
252b5132 RH |
4971 | { |
4972 | /* No address specified for this section, get one | |
4973 | from the region specification. */ | |
1579bae1 | 4974 | if (os->region == NULL |
6feb9908 | 4975 | || ((os->bfd_section->flags & (SEC_ALLOC | SEC_LOAD)) |
4a93e180 NC |
4976 | && os->region->name_list.name[0] == '*' |
4977 | && strcmp (os->region->name_list.name, | |
6feb9908 | 4978 | DEFAULT_MEMORY_REGION) == 0)) |
252b5132 RH |
4979 | { |
4980 | os->region = lang_memory_default (os->bfd_section); | |
4981 | } | |
4982 | ||
4983 | /* If a loadable section is using the default memory | |
4984 | region, and some non default memory regions were | |
66184979 | 4985 | defined, issue an error message. */ |
f0636a44 AM |
4986 | if (!os->ignored |
4987 | && !IGNORE_SECTION (os->bfd_section) | |
0e1862bb | 4988 | && !bfd_link_relocatable (&link_info) |
cf888e70 | 4989 | && check_regions |
4a93e180 | 4990 | && strcmp (os->region->name_list.name, |
6feb9908 | 4991 | DEFAULT_MEMORY_REGION) == 0 |
252b5132 | 4992 | && lang_memory_region_list != NULL |
4a93e180 | 4993 | && (strcmp (lang_memory_region_list->name_list.name, |
a747ee4d | 4994 | DEFAULT_MEMORY_REGION) != 0 |
e9ee469a AM |
4995 | || lang_memory_region_list->next != NULL) |
4996 | && expld.phase != lang_mark_phase_enum) | |
66184979 NC |
4997 | { |
4998 | /* By default this is an error rather than just a | |
4999 | warning because if we allocate the section to the | |
5000 | default memory region we can end up creating an | |
07f3b6ad KH |
5001 | excessively large binary, or even seg faulting when |
5002 | attempting to perform a negative seek. See | |
6feb9908 | 5003 | sources.redhat.com/ml/binutils/2003-04/msg00423.html |
66184979 NC |
5004 | for an example of this. This behaviour can be |
5005 | overridden by the using the --no-check-sections | |
5006 | switch. */ | |
5007 | if (command_line.check_section_addresses) | |
6feb9908 AM |
5008 | einfo (_("%P%F: error: no memory region specified" |
5009 | " for loadable section `%s'\n"), | |
f13a99db | 5010 | bfd_get_section_name (link_info.output_bfd, |
66184979 NC |
5011 | os->bfd_section)); |
5012 | else | |
6feb9908 AM |
5013 | einfo (_("%P: warning: no memory region specified" |
5014 | " for loadable section `%s'\n"), | |
f13a99db | 5015 | bfd_get_section_name (link_info.output_bfd, |
66184979 NC |
5016 | os->bfd_section)); |
5017 | } | |
252b5132 | 5018 | |
e9ee469a | 5019 | newdot = os->region->current; |
c5b0a9ef | 5020 | section_alignment = os->bfd_section->alignment_power; |
252b5132 | 5021 | } |
94b50910 | 5022 | else |
c5b0a9ef | 5023 | section_alignment = os->section_alignment; |
5f992e62 | 5024 | |
7270c5ed | 5025 | /* Align to what the section needs. */ |
c5b0a9ef | 5026 | if (section_alignment > 0) |
94b50910 AM |
5027 | { |
5028 | bfd_vma savedot = newdot; | |
c5b0a9ef | 5029 | newdot = align_power (newdot, section_alignment); |
252b5132 | 5030 | |
13075d04 SH |
5031 | dotdelta = newdot - savedot; |
5032 | if (dotdelta != 0 | |
94b50910 AM |
5033 | && (config.warn_section_align |
5034 | || os->addr_tree != NULL) | |
5035 | && expld.phase != lang_mark_phase_enum) | |
5036 | einfo (_("%P: warning: changing start of section" | |
5037 | " %s by %lu bytes\n"), | |
13075d04 | 5038 | os->name, (unsigned long) dotdelta); |
94b50910 | 5039 | } |
252b5132 | 5040 | |
eceda120 | 5041 | bfd_set_section_vma (0, os->bfd_section, newdot); |
5f992e62 | 5042 | |
252b5132 RH |
5043 | os->bfd_section->output_offset = 0; |
5044 | } | |
5045 | ||
e535e147 | 5046 | lang_size_sections_1 (&os->children.head, os, |
e9ee469a AM |
5047 | os->fill, newdot, relax, check_regions); |
5048 | ||
cde9e0be | 5049 | os->processed_vma = TRUE; |
e9ee469a AM |
5050 | |
5051 | if (bfd_is_abs_section (os->bfd_section) || os->ignored) | |
2f475487 AM |
5052 | /* Except for some special linker created sections, |
5053 | no output section should change from zero size | |
5054 | after strip_excluded_output_sections. A non-zero | |
5055 | size on an ignored section indicates that some | |
5056 | input section was not sized early enough. */ | |
5057 | ASSERT (os->bfd_section->size == 0); | |
cde9e0be | 5058 | else |
e9ee469a | 5059 | { |
cde9e0be AM |
5060 | dot = os->bfd_section->vma; |
5061 | ||
5062 | /* Put the section within the requested block size, or | |
5063 | align at the block boundary. */ | |
5064 | after = ((dot | |
5065 | + TO_ADDR (os->bfd_section->size) | |
5066 | + os->block_value - 1) | |
5067 | & - (bfd_vma) os->block_value); | |
5068 | ||
5069 | os->bfd_section->size = TO_SIZE (after - os->bfd_section->vma); | |
5070 | } | |
5071 | ||
5072 | /* Set section lma. */ | |
5073 | r = os->region; | |
5074 | if (r == NULL) | |
5075 | r = lang_memory_region_lookup (DEFAULT_MEMORY_REGION, FALSE); | |
5076 | ||
5077 | if (os->load_base) | |
5078 | { | |
5079 | bfd_vma lma = exp_get_abs_int (os->load_base, 0, "load base"); | |
5080 | os->bfd_section->lma = lma; | |
e9ee469a | 5081 | } |
07dfcf38 | 5082 | else if (os->lma_region != NULL) |
cde9e0be AM |
5083 | { |
5084 | bfd_vma lma = os->lma_region->current; | |
e9ee469a | 5085 | |
13075d04 SH |
5086 | if (os->align_lma_with_input) |
5087 | lma += dotdelta; | |
5088 | else | |
5089 | { | |
5090 | /* When LMA_REGION is the same as REGION, align the LMA | |
5091 | as we did for the VMA, possibly including alignment | |
5092 | from the bfd section. If a different region, then | |
5093 | only align according to the value in the output | |
5094 | statement. */ | |
5095 | if (os->lma_region != os->region) | |
5096 | section_alignment = os->section_alignment; | |
5097 | if (section_alignment > 0) | |
5098 | lma = align_power (lma, section_alignment); | |
5099 | } | |
cde9e0be AM |
5100 | os->bfd_section->lma = lma; |
5101 | } | |
dc0b6aa0 AM |
5102 | else if (r->last_os != NULL |
5103 | && (os->bfd_section->flags & SEC_ALLOC) != 0) | |
cde9e0be AM |
5104 | { |
5105 | bfd_vma lma; | |
5106 | asection *last; | |
5107 | ||
5108 | last = r->last_os->output_section_statement.bfd_section; | |
dc0b6aa0 AM |
5109 | |
5110 | /* A backwards move of dot should be accompanied by | |
5111 | an explicit assignment to the section LMA (ie. | |
91eb6c46 | 5112 | os->load_base set) because backwards moves can |
dc0b6aa0 | 5113 | create overlapping LMAs. */ |
264b6205 | 5114 | if (dot < last->vma |
91eb6c46 | 5115 | && os->bfd_section->size != 0 |
ca62bc4a | 5116 | && dot + TO_ADDR (os->bfd_section->size) <= last->vma) |
dc0b6aa0 | 5117 | { |
dc0b6aa0 AM |
5118 | /* If dot moved backwards then leave lma equal to |
5119 | vma. This is the old default lma, which might | |
5120 | just happen to work when the backwards move is | |
91eb6c46 AM |
5121 | sufficiently large. Nag if this changes anything, |
5122 | so people can fix their linker scripts. */ | |
5123 | ||
5124 | if (last->vma != last->lma) | |
5125 | einfo (_("%P: warning: dot moved backwards before `%s'\n"), | |
5126 | os->name); | |
dc0b6aa0 AM |
5127 | } |
5128 | else | |
cde9e0be | 5129 | { |
152d792f AM |
5130 | /* If this is an overlay, set the current lma to that |
5131 | at the end of the previous section. */ | |
5132 | if (os->sectype == overlay_section) | |
fc90c280 | 5133 | lma = last->lma + TO_ADDR (last->size); |
cde9e0be AM |
5134 | |
5135 | /* Otherwise, keep the same lma to vma relationship | |
5136 | as the previous section. */ | |
5137 | else | |
5138 | lma = dot + last->lma - last->vma; | |
5139 | ||
c5b0a9ef AM |
5140 | if (section_alignment > 0) |
5141 | lma = align_power (lma, section_alignment); | |
cde9e0be AM |
5142 | os->bfd_section->lma = lma; |
5143 | } | |
5144 | } | |
5145 | os->processed_lma = TRUE; | |
5f992e62 | 5146 | |
cde9e0be AM |
5147 | if (bfd_is_abs_section (os->bfd_section) || os->ignored) |
5148 | break; | |
252b5132 | 5149 | |
a87dd97a AM |
5150 | if (r->last_os != NULL |
5151 | && !IGNORE_SECTION (os->bfd_section) | |
5152 | && os->bfd_section->size != 0) | |
5153 | { | |
5154 | asection *last; | |
5155 | ||
5156 | last = r->last_os->output_section_statement.bfd_section; | |
5157 | if (dot + TO_ADDR (os->bfd_section->size) > last->vma | |
5158 | && dot < last->vma + TO_ADDR (last->size)) | |
5159 | maybe_overlays = TRUE; | |
5160 | } | |
5161 | ||
cde9e0be AM |
5162 | /* Keep track of normal sections using the default |
5163 | lma region. We use this to set the lma for | |
5164 | following sections. Overlays or other linker | |
5165 | script assignment to lma might mean that the | |
dc0b6aa0 AM |
5166 | default lma == vma is incorrect. |
5167 | To avoid warnings about dot moving backwards when using | |
5168 | -Ttext, don't start tracking sections until we find one | |
5169 | of non-zero size or with lma set differently to vma. */ | |
2e4a7aea | 5170 | if (!IGNORE_SECTION (os->bfd_section) |
dc0b6aa0 | 5171 | && (os->bfd_section->size != 0 |
264b6205 AM |
5172 | || (r->last_os == NULL |
5173 | && os->bfd_section->vma != os->bfd_section->lma) | |
5174 | || (r->last_os != NULL | |
5175 | && dot >= (r->last_os->output_section_statement | |
ea0c3cd5 | 5176 | .bfd_section->vma))) |
cde9e0be | 5177 | && os->lma_region == NULL |
0e1862bb | 5178 | && !bfd_link_relocatable (&link_info)) |
cde9e0be | 5179 | r->last_os = s; |
9f88b410 | 5180 | |
e5caec89 | 5181 | /* .tbss sections effectively have zero size. */ |
2e4a7aea | 5182 | if (!IS_TBSS (os->bfd_section) |
0e1862bb | 5183 | || bfd_link_relocatable (&link_info)) |
13075d04 SH |
5184 | dotdelta = TO_ADDR (os->bfd_section->size); |
5185 | else | |
5186 | dotdelta = 0; | |
5187 | dot += dotdelta; | |
e5caec89 | 5188 | |
9f88b410 | 5189 | if (os->update_dot_tree != 0) |
e9ee469a | 5190 | exp_fold_tree (os->update_dot_tree, bfd_abs_section_ptr, &dot); |
9f88b410 | 5191 | |
252b5132 RH |
5192 | /* Update dot in the region ? |
5193 | We only do this if the section is going to be allocated, | |
5194 | since unallocated sections do not contribute to the region's | |
2e76e85a | 5195 | overall size in memory. */ |
1579bae1 | 5196 | if (os->region != NULL |
2e76e85a | 5197 | && (os->bfd_section->flags & (SEC_ALLOC | SEC_LOAD))) |
252b5132 RH |
5198 | { |
5199 | os->region->current = dot; | |
5f992e62 | 5200 | |
cf888e70 NC |
5201 | if (check_regions) |
5202 | /* Make sure the new address is within the region. */ | |
5203 | os_region_check (os, os->region, os->addr_tree, | |
5204 | os->bfd_section->vma); | |
08da4cac | 5205 | |
a2cab753 | 5206 | if (os->lma_region != NULL && os->lma_region != os->region |
13075d04 SH |
5207 | && ((os->bfd_section->flags & SEC_LOAD) |
5208 | || os->align_lma_with_input)) | |
08da4cac | 5209 | { |
13075d04 | 5210 | os->lma_region->current = os->bfd_section->lma + dotdelta; |
66e28d60 | 5211 | |
cf888e70 NC |
5212 | if (check_regions) |
5213 | os_region_check (os, os->lma_region, NULL, | |
cde9e0be | 5214 | os->bfd_section->lma); |
08da4cac | 5215 | } |
252b5132 RH |
5216 | } |
5217 | } | |
5218 | break; | |
5219 | ||
5220 | case lang_constructors_statement_enum: | |
e535e147 | 5221 | dot = lang_size_sections_1 (&constructor_list.head, |
2d20f7bf | 5222 | output_section_statement, |
cf888e70 | 5223 | fill, dot, relax, check_regions); |
252b5132 RH |
5224 | break; |
5225 | ||
5226 | case lang_data_statement_enum: | |
5227 | { | |
5228 | unsigned int size = 0; | |
5229 | ||
7fabd029 | 5230 | s->data_statement.output_offset = |
08da4cac | 5231 | dot - output_section_statement->bfd_section->vma; |
252b5132 RH |
5232 | s->data_statement.output_section = |
5233 | output_section_statement->bfd_section; | |
5234 | ||
1b493742 NS |
5235 | /* We might refer to provided symbols in the expression, and |
5236 | need to mark them as needed. */ | |
e9ee469a | 5237 | exp_fold_tree (s->data_statement.exp, bfd_abs_section_ptr, &dot); |
1b493742 | 5238 | |
252b5132 RH |
5239 | switch (s->data_statement.type) |
5240 | { | |
08da4cac KH |
5241 | default: |
5242 | abort (); | |
252b5132 RH |
5243 | case QUAD: |
5244 | case SQUAD: | |
5245 | size = QUAD_SIZE; | |
5246 | break; | |
5247 | case LONG: | |
5248 | size = LONG_SIZE; | |
5249 | break; | |
5250 | case SHORT: | |
5251 | size = SHORT_SIZE; | |
5252 | break; | |
5253 | case BYTE: | |
5254 | size = BYTE_SIZE; | |
5255 | break; | |
5256 | } | |
e5caa5e0 AM |
5257 | if (size < TO_SIZE ((unsigned) 1)) |
5258 | size = TO_SIZE ((unsigned) 1); | |
5259 | dot += TO_ADDR (size); | |
aa4c3319 AM |
5260 | output_section_statement->bfd_section->size |
5261 | = TO_SIZE (dot - output_section_statement->bfd_section->vma); | |
5262 | ||
252b5132 RH |
5263 | } |
5264 | break; | |
5265 | ||
5266 | case lang_reloc_statement_enum: | |
5267 | { | |
5268 | int size; | |
5269 | ||
7fabd029 | 5270 | s->reloc_statement.output_offset = |
252b5132 RH |
5271 | dot - output_section_statement->bfd_section->vma; |
5272 | s->reloc_statement.output_section = | |
5273 | output_section_statement->bfd_section; | |
5274 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
e5caa5e0 | 5275 | dot += TO_ADDR (size); |
aa4c3319 AM |
5276 | output_section_statement->bfd_section->size |
5277 | = TO_SIZE (dot - output_section_statement->bfd_section->vma); | |
252b5132 RH |
5278 | } |
5279 | break; | |
5f992e62 | 5280 | |
252b5132 | 5281 | case lang_wild_statement_enum: |
e535e147 | 5282 | dot = lang_size_sections_1 (&s->wild_statement.children.head, |
2d20f7bf | 5283 | output_section_statement, |
cf888e70 | 5284 | fill, dot, relax, check_regions); |
252b5132 RH |
5285 | break; |
5286 | ||
5287 | case lang_object_symbols_statement_enum: | |
5288 | link_info.create_object_symbols_section = | |
5289 | output_section_statement->bfd_section; | |
5290 | break; | |
e9ee469a | 5291 | |
252b5132 RH |
5292 | case lang_output_statement_enum: |
5293 | case lang_target_statement_enum: | |
5294 | break; | |
e9ee469a | 5295 | |
252b5132 RH |
5296 | case lang_input_section_enum: |
5297 | { | |
5298 | asection *i; | |
5299 | ||
e535e147 | 5300 | i = s->input_section.section; |
eea6121a | 5301 | if (relax) |
252b5132 | 5302 | { |
b34976b6 | 5303 | bfd_boolean again; |
252b5132 RH |
5304 | |
5305 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) | |
5306 | einfo (_("%P%F: can't relax section: %E\n")); | |
5307 | if (again) | |
b34976b6 | 5308 | *relax = TRUE; |
252b5132 | 5309 | } |
b3327aad | 5310 | dot = size_input_section (prev, output_section_statement, |
ffe54b37 | 5311 | fill, dot); |
252b5132 RH |
5312 | } |
5313 | break; | |
e9ee469a | 5314 | |
252b5132 RH |
5315 | case lang_input_statement_enum: |
5316 | break; | |
e9ee469a | 5317 | |
252b5132 | 5318 | case lang_fill_statement_enum: |
08da4cac KH |
5319 | s->fill_statement.output_section = |
5320 | output_section_statement->bfd_section; | |
252b5132 RH |
5321 | |
5322 | fill = s->fill_statement.fill; | |
5323 | break; | |
e9ee469a | 5324 | |
252b5132 RH |
5325 | case lang_assignment_statement_enum: |
5326 | { | |
5327 | bfd_vma newdot = dot; | |
49c13adb | 5328 | etree_type *tree = s->assignment_statement.exp; |
252b5132 | 5329 | |
b10a8ae0 L |
5330 | expld.dataseg.relro = exp_dataseg_relro_none; |
5331 | ||
49c13adb | 5332 | exp_fold_tree (tree, |
408082ec | 5333 | output_section_statement->bfd_section, |
252b5132 RH |
5334 | &newdot); |
5335 | ||
b10a8ae0 L |
5336 | if (expld.dataseg.relro == exp_dataseg_relro_start) |
5337 | { | |
5338 | if (!expld.dataseg.relro_start_stat) | |
5339 | expld.dataseg.relro_start_stat = s; | |
5340 | else | |
5341 | { | |
5342 | ASSERT (expld.dataseg.relro_start_stat == s); | |
5343 | } | |
5344 | } | |
5345 | else if (expld.dataseg.relro == exp_dataseg_relro_end) | |
5346 | { | |
5347 | if (!expld.dataseg.relro_end_stat) | |
5348 | expld.dataseg.relro_end_stat = s; | |
5349 | else | |
5350 | { | |
5351 | ASSERT (expld.dataseg.relro_end_stat == s); | |
5352 | } | |
5353 | } | |
5354 | expld.dataseg.relro = exp_dataseg_relro_none; | |
5355 | ||
d2667025 | 5356 | /* This symbol may be relative to this section. */ |
a14a5de3 | 5357 | if ((tree->type.node_class == etree_provided |
49c13adb L |
5358 | || tree->type.node_class == etree_assign) |
5359 | && (tree->assign.dst [0] != '.' | |
5360 | || tree->assign.dst [1] != '\0')) | |
6d8bf25d | 5361 | output_section_statement->update_dot = 1; |
49c13adb | 5362 | |
85852e36 | 5363 | if (!output_section_statement->ignored) |
252b5132 | 5364 | { |
252b5132 RH |
5365 | if (output_section_statement == abs_output_section) |
5366 | { | |
5367 | /* If we don't have an output section, then just adjust | |
5368 | the default memory address. */ | |
6feb9908 AM |
5369 | lang_memory_region_lookup (DEFAULT_MEMORY_REGION, |
5370 | FALSE)->current = newdot; | |
252b5132 | 5371 | } |
85852e36 | 5372 | else if (newdot != dot) |
252b5132 | 5373 | { |
b3327aad AM |
5374 | /* Insert a pad after this statement. We can't |
5375 | put the pad before when relaxing, in case the | |
5376 | assignment references dot. */ | |
e5caa5e0 | 5377 | insert_pad (&s->header.next, fill, TO_SIZE (newdot - dot), |
b3327aad AM |
5378 | output_section_statement->bfd_section, dot); |
5379 | ||
5380 | /* Don't neuter the pad below when relaxing. */ | |
5381 | s = s->header.next; | |
9dfc8ab2 | 5382 | |
e9ee469a AM |
5383 | /* If dot is advanced, this implies that the section |
5384 | should have space allocated to it, unless the | |
5385 | user has explicitly stated that the section | |
2e76e85a | 5386 | should not be allocated. */ |
f4eaaf7f AM |
5387 | if (output_section_statement->sectype != noalloc_section |
5388 | && (output_section_statement->sectype != noload_section | |
5389 | || (bfd_get_flavour (link_info.output_bfd) | |
5390 | == bfd_target_elf_flavour))) | |
e9ee469a AM |
5391 | output_section_statement->bfd_section->flags |= SEC_ALLOC; |
5392 | } | |
252b5132 RH |
5393 | dot = newdot; |
5394 | } | |
5395 | } | |
5396 | break; | |
5397 | ||
5398 | case lang_padding_statement_enum: | |
c0c330a7 AM |
5399 | /* If this is the first time lang_size_sections is called, |
5400 | we won't have any padding statements. If this is the | |
5401 | second or later passes when relaxing, we should allow | |
5402 | padding to shrink. If padding is needed on this pass, it | |
5403 | will be added back in. */ | |
5404 | s->padding_statement.size = 0; | |
6e814ff8 AM |
5405 | |
5406 | /* Make sure output_offset is valid. If relaxation shrinks | |
5407 | the section and this pad isn't needed, it's possible to | |
5408 | have output_offset larger than the final size of the | |
5409 | section. bfd_set_section_contents will complain even for | |
5410 | a pad size of zero. */ | |
5411 | s->padding_statement.output_offset | |
5412 | = dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
5413 | break; |
5414 | ||
5415 | case lang_group_statement_enum: | |
e535e147 | 5416 | dot = lang_size_sections_1 (&s->group_statement.children.head, |
2d20f7bf | 5417 | output_section_statement, |
cf888e70 | 5418 | fill, dot, relax, check_regions); |
252b5132 RH |
5419 | break; |
5420 | ||
53d25da6 | 5421 | case lang_insert_statement_enum: |
252b5132 RH |
5422 | break; |
5423 | ||
c0c330a7 | 5424 | /* We can only get here when relaxing is turned on. */ |
252b5132 RH |
5425 | case lang_address_statement_enum: |
5426 | break; | |
53d25da6 AM |
5427 | |
5428 | default: | |
5429 | FAIL (); | |
5430 | break; | |
252b5132 RH |
5431 | } |
5432 | prev = &s->header.next; | |
5433 | } | |
5434 | return dot; | |
5435 | } | |
5436 | ||
591a748a NC |
5437 | /* Callback routine that is used in _bfd_elf_map_sections_to_segments. |
5438 | The BFD library has set NEW_SEGMENT to TRUE iff it thinks that | |
5439 | CURRENT_SECTION and PREVIOUS_SECTION ought to be placed into different | |
5440 | segments. We are allowed an opportunity to override this decision. */ | |
2889e75b NC |
5441 | |
5442 | bfd_boolean | |
5443 | ldlang_override_segment_assignment (struct bfd_link_info * info ATTRIBUTE_UNUSED, | |
5444 | bfd * abfd ATTRIBUTE_UNUSED, | |
5445 | asection * current_section, | |
5446 | asection * previous_section, | |
5447 | bfd_boolean new_segment) | |
5448 | { | |
5449 | lang_output_section_statement_type * cur; | |
5450 | lang_output_section_statement_type * prev; | |
591a748a NC |
5451 | |
5452 | /* The checks below are only necessary when the BFD library has decided | |
5453 | that the two sections ought to be placed into the same segment. */ | |
2889e75b NC |
5454 | if (new_segment) |
5455 | return TRUE; | |
5456 | ||
5457 | /* Paranoia checks. */ | |
5458 | if (current_section == NULL || previous_section == NULL) | |
5459 | return new_segment; | |
5460 | ||
4724d37e RM |
5461 | /* If this flag is set, the target never wants code and non-code |
5462 | sections comingled in the same segment. */ | |
5463 | if (config.separate_code | |
5464 | && ((current_section->flags ^ previous_section->flags) & SEC_CODE)) | |
5465 | return TRUE; | |
5466 | ||
2889e75b NC |
5467 | /* Find the memory regions associated with the two sections. |
5468 | We call lang_output_section_find() here rather than scanning the list | |
5469 | of output sections looking for a matching section pointer because if | |
591a748a | 5470 | we have a large number of sections then a hash lookup is faster. */ |
2889e75b NC |
5471 | cur = lang_output_section_find (current_section->name); |
5472 | prev = lang_output_section_find (previous_section->name); | |
5473 | ||
591a748a | 5474 | /* More paranoia. */ |
2889e75b NC |
5475 | if (cur == NULL || prev == NULL) |
5476 | return new_segment; | |
5477 | ||
5478 | /* If the regions are different then force the sections to live in | |
591a748a NC |
5479 | different segments. See the email thread starting at the following |
5480 | URL for the reasons why this is necessary: | |
2889e75b NC |
5481 | http://sourceware.org/ml/binutils/2007-02/msg00216.html */ |
5482 | return cur->region != prev->region; | |
5483 | } | |
5484 | ||
e9ee469a AM |
5485 | void |
5486 | one_lang_size_sections_pass (bfd_boolean *relax, bfd_boolean check_regions) | |
2d20f7bf | 5487 | { |
420e579c | 5488 | lang_statement_iteration++; |
e535e147 AM |
5489 | lang_size_sections_1 (&statement_list.head, abs_output_section, |
5490 | 0, 0, relax, check_regions); | |
e9ee469a | 5491 | } |
420e579c | 5492 | |
e9ee469a AM |
5493 | void |
5494 | lang_size_sections (bfd_boolean *relax, bfd_boolean check_regions) | |
5495 | { | |
5496 | expld.phase = lang_allocating_phase_enum; | |
5497 | expld.dataseg.phase = exp_dataseg_none; | |
5498 | ||
5499 | one_lang_size_sections_pass (relax, check_regions); | |
5500 | if (expld.dataseg.phase == exp_dataseg_end_seen | |
5501 | && link_info.relro && expld.dataseg.relro_end) | |
8c37241b | 5502 | { |
0e5fabeb AM |
5503 | bfd_vma initial_base, relro_end, desired_end; |
5504 | asection *sec; | |
8c37241b | 5505 | |
a4f5ad88 | 5506 | /* Compute the expected PT_GNU_RELRO segment end. */ |
967928e9 AM |
5507 | relro_end = ((expld.dataseg.relro_end + expld.dataseg.pagesize - 1) |
5508 | & ~(expld.dataseg.pagesize - 1)); | |
0e5fabeb AM |
5509 | |
5510 | /* Adjust by the offset arg of DATA_SEGMENT_RELRO_END. */ | |
5511 | desired_end = relro_end - expld.dataseg.relro_offset; | |
5512 | ||
5513 | /* For sections in the relro segment.. */ | |
5514 | for (sec = link_info.output_bfd->section_last; sec; sec = sec->prev) | |
b3991020 | 5515 | if ((sec->flags & SEC_ALLOC) != 0 |
0e5fabeb AM |
5516 | && sec->vma >= expld.dataseg.base |
5517 | && sec->vma < expld.dataseg.relro_end - expld.dataseg.relro_offset) | |
5518 | { | |
5519 | /* Where do we want to put this section so that it ends as | |
5520 | desired? */ | |
b3991020 AM |
5521 | bfd_vma start, end, bump; |
5522 | ||
5523 | end = start = sec->vma; | |
2e4a7aea | 5524 | if (!IS_TBSS (sec)) |
fc90c280 | 5525 | end += TO_ADDR (sec->size); |
b3991020 | 5526 | bump = desired_end - end; |
0e5fabeb AM |
5527 | /* We'd like to increase START by BUMP, but we must heed |
5528 | alignment so the increase might be less than optimum. */ | |
b3991020 AM |
5529 | start += bump; |
5530 | start &= ~(((bfd_vma) 1 << sec->alignment_power) - 1); | |
0e5fabeb AM |
5531 | /* This is now the desired end for the previous section. */ |
5532 | desired_end = start; | |
5533 | } | |
5534 | ||
5535 | expld.dataseg.phase = exp_dataseg_relro_adjust; | |
5536 | ASSERT (desired_end >= expld.dataseg.base); | |
5537 | initial_base = expld.dataseg.base; | |
5538 | expld.dataseg.base = desired_end; | |
f86a8756 | 5539 | lang_reset_memory_regions (); |
e9ee469a | 5540 | one_lang_size_sections_pass (relax, check_regions); |
0e5fabeb | 5541 | |
e9ee469a | 5542 | if (expld.dataseg.relro_end > relro_end) |
a4f5ad88 | 5543 | { |
0e5fabeb AM |
5544 | /* Assignments to dot, or to output section address in a |
5545 | user script have increased padding over the original. | |
5546 | Revert. */ | |
5547 | expld.dataseg.base = initial_base; | |
6c1aca3e AM |
5548 | lang_reset_memory_regions (); |
5549 | one_lang_size_sections_pass (relax, check_regions); | |
a4f5ad88 | 5550 | } |
0e5fabeb | 5551 | |
e9ee469a AM |
5552 | link_info.relro_start = expld.dataseg.base; |
5553 | link_info.relro_end = expld.dataseg.relro_end; | |
8c37241b | 5554 | } |
e9ee469a | 5555 | else if (expld.dataseg.phase == exp_dataseg_end_seen) |
2d20f7bf JJ |
5556 | { |
5557 | /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_END pair was seen, check whether | |
5558 | a page could be saved in the data segment. */ | |
5559 | bfd_vma first, last; | |
5560 | ||
e9ee469a AM |
5561 | first = -expld.dataseg.base & (expld.dataseg.pagesize - 1); |
5562 | last = expld.dataseg.end & (expld.dataseg.pagesize - 1); | |
2d20f7bf | 5563 | if (first && last |
e9ee469a AM |
5564 | && ((expld.dataseg.base & ~(expld.dataseg.pagesize - 1)) |
5565 | != (expld.dataseg.end & ~(expld.dataseg.pagesize - 1))) | |
5566 | && first + last <= expld.dataseg.pagesize) | |
2d20f7bf | 5567 | { |
e9ee469a | 5568 | expld.dataseg.phase = exp_dataseg_adjust; |
f86a8756 | 5569 | lang_reset_memory_regions (); |
e9ee469a | 5570 | one_lang_size_sections_pass (relax, check_regions); |
2d20f7bf | 5571 | } |
ea7c2e6c AM |
5572 | else |
5573 | expld.dataseg.phase = exp_dataseg_done; | |
2d20f7bf | 5574 | } |
ea7c2e6c AM |
5575 | else |
5576 | expld.dataseg.phase = exp_dataseg_done; | |
2d20f7bf JJ |
5577 | } |
5578 | ||
d2667025 AM |
5579 | static lang_output_section_statement_type *current_section; |
5580 | static lang_assignment_statement_type *current_assign; | |
5581 | static bfd_boolean prefer_next_section; | |
5582 | ||
420e579c HPN |
5583 | /* Worker function for lang_do_assignments. Recursiveness goes here. */ |
5584 | ||
5585 | static bfd_vma | |
66e28d60 AM |
5586 | lang_do_assignments_1 (lang_statement_union_type *s, |
5587 | lang_output_section_statement_type *current_os, | |
5588 | fill_type *fill, | |
d2667025 AM |
5589 | bfd_vma dot, |
5590 | bfd_boolean *found_end) | |
252b5132 | 5591 | { |
1579bae1 | 5592 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
5593 | { |
5594 | switch (s->header.type) | |
5595 | { | |
5596 | case lang_constructors_statement_enum: | |
420e579c | 5597 | dot = lang_do_assignments_1 (constructor_list.head, |
d2667025 | 5598 | current_os, fill, dot, found_end); |
252b5132 RH |
5599 | break; |
5600 | ||
5601 | case lang_output_section_statement_enum: | |
5602 | { | |
d1778b88 | 5603 | lang_output_section_statement_type *os; |
252b5132 | 5604 | |
d1778b88 | 5605 | os = &(s->output_section_statement); |
d2667025 | 5606 | os->after_end = *found_end; |
75ff4589 | 5607 | if (os->bfd_section != NULL && !os->ignored) |
252b5132 | 5608 | { |
d2667025 AM |
5609 | if ((os->bfd_section->flags & SEC_ALLOC) != 0) |
5610 | { | |
5611 | current_section = os; | |
5612 | prefer_next_section = FALSE; | |
5613 | } | |
252b5132 | 5614 | dot = os->bfd_section->vma; |
66e28d60 | 5615 | |
d2667025 AM |
5616 | lang_do_assignments_1 (os->children.head, |
5617 | os, os->fill, dot, found_end); | |
66e28d60 | 5618 | |
3737f867 | 5619 | /* .tbss sections effectively have zero size. */ |
2e4a7aea | 5620 | if (!IS_TBSS (os->bfd_section) |
0e1862bb | 5621 | || bfd_link_relocatable (&link_info)) |
cde9e0be | 5622 | dot += TO_ADDR (os->bfd_section->size); |
5590fba9 NC |
5623 | |
5624 | if (os->update_dot_tree != NULL) | |
5625 | exp_fold_tree (os->update_dot_tree, bfd_abs_section_ptr, &dot); | |
252b5132 RH |
5626 | } |
5627 | } | |
5628 | break; | |
e9ee469a | 5629 | |
252b5132 RH |
5630 | case lang_wild_statement_enum: |
5631 | ||
420e579c | 5632 | dot = lang_do_assignments_1 (s->wild_statement.children.head, |
d2667025 | 5633 | current_os, fill, dot, found_end); |
252b5132 RH |
5634 | break; |
5635 | ||
5636 | case lang_object_symbols_statement_enum: | |
5637 | case lang_output_statement_enum: | |
5638 | case lang_target_statement_enum: | |
252b5132 | 5639 | break; |
e9ee469a | 5640 | |
252b5132 | 5641 | case lang_data_statement_enum: |
e9ee469a AM |
5642 | exp_fold_tree (s->data_statement.exp, bfd_abs_section_ptr, &dot); |
5643 | if (expld.result.valid_p) | |
7542af2a AM |
5644 | { |
5645 | s->data_statement.value = expld.result.value; | |
5646 | if (expld.result.section != NULL) | |
5647 | s->data_statement.value += expld.result.section->vma; | |
5648 | } | |
e9ee469a AM |
5649 | else |
5650 | einfo (_("%F%P: invalid data statement\n")); | |
b7a26f91 KH |
5651 | { |
5652 | unsigned int size; | |
08da4cac KH |
5653 | switch (s->data_statement.type) |
5654 | { | |
5655 | default: | |
5656 | abort (); | |
5657 | case QUAD: | |
5658 | case SQUAD: | |
5659 | size = QUAD_SIZE; | |
5660 | break; | |
5661 | case LONG: | |
5662 | size = LONG_SIZE; | |
5663 | break; | |
5664 | case SHORT: | |
5665 | size = SHORT_SIZE; | |
5666 | break; | |
5667 | case BYTE: | |
5668 | size = BYTE_SIZE; | |
5669 | break; | |
5670 | } | |
e5caa5e0 AM |
5671 | if (size < TO_SIZE ((unsigned) 1)) |
5672 | size = TO_SIZE ((unsigned) 1); | |
5673 | dot += TO_ADDR (size); | |
08da4cac | 5674 | } |
252b5132 RH |
5675 | break; |
5676 | ||
5677 | case lang_reloc_statement_enum: | |
e9ee469a AM |
5678 | exp_fold_tree (s->reloc_statement.addend_exp, |
5679 | bfd_abs_section_ptr, &dot); | |
5680 | if (expld.result.valid_p) | |
5681 | s->reloc_statement.addend_value = expld.result.value; | |
5682 | else | |
5683 | einfo (_("%F%P: invalid reloc statement\n")); | |
e5caa5e0 | 5684 | dot += TO_ADDR (bfd_get_reloc_size (s->reloc_statement.howto)); |
252b5132 RH |
5685 | break; |
5686 | ||
5687 | case lang_input_section_enum: | |
5688 | { | |
5689 | asection *in = s->input_section.section; | |
5690 | ||
57ceae94 | 5691 | if ((in->flags & SEC_EXCLUDE) == 0) |
eea6121a | 5692 | dot += TO_ADDR (in->size); |
252b5132 RH |
5693 | } |
5694 | break; | |
5695 | ||
5696 | case lang_input_statement_enum: | |
5697 | break; | |
e9ee469a | 5698 | |
252b5132 RH |
5699 | case lang_fill_statement_enum: |
5700 | fill = s->fill_statement.fill; | |
5701 | break; | |
252b5132 | 5702 | |
e9ee469a | 5703 | case lang_assignment_statement_enum: |
d2667025 AM |
5704 | current_assign = &s->assignment_statement; |
5705 | if (current_assign->exp->type.node_class != etree_assert) | |
5706 | { | |
5707 | const char *p = current_assign->exp->assign.dst; | |
5708 | ||
5709 | if (current_os == abs_output_section && p[0] == '.' && p[1] == 0) | |
5710 | prefer_next_section = TRUE; | |
5711 | ||
5712 | while (*p == '_') | |
5713 | ++p; | |
5714 | if (strcmp (p, "end") == 0) | |
5715 | *found_end = TRUE; | |
5716 | } | |
e9ee469a | 5717 | exp_fold_tree (s->assignment_statement.exp, |
66e28d60 | 5718 | current_os->bfd_section, |
e9ee469a | 5719 | &dot); |
252b5132 | 5720 | break; |
e9ee469a | 5721 | |
252b5132 | 5722 | case lang_padding_statement_enum: |
e5caa5e0 | 5723 | dot += TO_ADDR (s->padding_statement.size); |
252b5132 RH |
5724 | break; |
5725 | ||
5726 | case lang_group_statement_enum: | |
420e579c | 5727 | dot = lang_do_assignments_1 (s->group_statement.children.head, |
d2667025 | 5728 | current_os, fill, dot, found_end); |
252b5132 RH |
5729 | break; |
5730 | ||
53d25da6 | 5731 | case lang_insert_statement_enum: |
252b5132 | 5732 | break; |
e9ee469a | 5733 | |
252b5132 RH |
5734 | case lang_address_statement_enum: |
5735 | break; | |
53d25da6 AM |
5736 | |
5737 | default: | |
5738 | FAIL (); | |
5739 | break; | |
252b5132 | 5740 | } |
252b5132 RH |
5741 | } |
5742 | return dot; | |
5743 | } | |
5744 | ||
f2241121 | 5745 | void |
2f65ac72 | 5746 | lang_do_assignments (lang_phase_type phase) |
420e579c | 5747 | { |
d2667025 AM |
5748 | bfd_boolean found_end = FALSE; |
5749 | ||
5750 | current_section = NULL; | |
5751 | prefer_next_section = FALSE; | |
2f65ac72 | 5752 | expld.phase = phase; |
420e579c | 5753 | lang_statement_iteration++; |
d2667025 AM |
5754 | lang_do_assignments_1 (statement_list.head, |
5755 | abs_output_section, NULL, 0, &found_end); | |
5756 | } | |
5757 | ||
5758 | /* For an assignment statement outside of an output section statement, | |
5759 | choose the best of neighbouring output sections to use for values | |
5760 | of "dot". */ | |
5761 | ||
5762 | asection * | |
5763 | section_for_dot (void) | |
5764 | { | |
5765 | asection *s; | |
5766 | ||
5767 | /* Assignments belong to the previous output section, unless there | |
5768 | has been an assignment to "dot", in which case following | |
5769 | assignments belong to the next output section. (The assumption | |
5770 | is that an assignment to "dot" is setting up the address for the | |
5771 | next output section.) Except that past the assignment to "_end" | |
5772 | we always associate with the previous section. This exception is | |
5773 | for targets like SH that define an alloc .stack or other | |
5774 | weirdness after non-alloc sections. */ | |
5775 | if (current_section == NULL || prefer_next_section) | |
5776 | { | |
5777 | lang_statement_union_type *stmt; | |
5778 | lang_output_section_statement_type *os; | |
5779 | ||
5780 | for (stmt = (lang_statement_union_type *) current_assign; | |
5781 | stmt != NULL; | |
5782 | stmt = stmt->header.next) | |
5783 | if (stmt->header.type == lang_output_section_statement_enum) | |
5784 | break; | |
5785 | ||
5786 | os = &stmt->output_section_statement; | |
5787 | while (os != NULL | |
5788 | && !os->after_end | |
5789 | && (os->bfd_section == NULL | |
5790 | || (os->bfd_section->flags & SEC_EXCLUDE) != 0 | |
5791 | || bfd_section_removed_from_list (link_info.output_bfd, | |
5792 | os->bfd_section))) | |
5793 | os = os->next; | |
5794 | ||
5795 | if (current_section == NULL || os == NULL || !os->after_end) | |
5796 | { | |
5797 | if (os != NULL) | |
5798 | s = os->bfd_section; | |
5799 | else | |
5800 | s = link_info.output_bfd->section_last; | |
5801 | while (s != NULL | |
5802 | && ((s->flags & SEC_ALLOC) == 0 | |
5803 | || (s->flags & SEC_THREAD_LOCAL) != 0)) | |
5804 | s = s->prev; | |
5805 | if (s != NULL) | |
5806 | return s; | |
5807 | ||
5808 | return bfd_abs_section_ptr; | |
5809 | } | |
5810 | } | |
5811 | ||
5812 | s = current_section->bfd_section; | |
5813 | ||
5814 | /* The section may have been stripped. */ | |
5815 | while (s != NULL | |
5816 | && ((s->flags & SEC_EXCLUDE) != 0 | |
5817 | || (s->flags & SEC_ALLOC) == 0 | |
5818 | || (s->flags & SEC_THREAD_LOCAL) != 0 | |
5819 | || bfd_section_removed_from_list (link_info.output_bfd, s))) | |
5820 | s = s->prev; | |
5821 | if (s == NULL) | |
5822 | s = link_info.output_bfd->sections; | |
5823 | while (s != NULL | |
5824 | && ((s->flags & SEC_ALLOC) == 0 | |
5825 | || (s->flags & SEC_THREAD_LOCAL) != 0)) | |
5826 | s = s->next; | |
5827 | if (s != NULL) | |
5828 | return s; | |
5829 | ||
5830 | return bfd_abs_section_ptr; | |
420e579c HPN |
5831 | } |
5832 | ||
252b5132 RH |
5833 | /* Fix any .startof. or .sizeof. symbols. When the assemblers see the |
5834 | operator .startof. (section_name), it produces an undefined symbol | |
5835 | .startof.section_name. Similarly, when it sees | |
5836 | .sizeof. (section_name), it produces an undefined symbol | |
5837 | .sizeof.section_name. For all the output sections, we look for | |
5838 | such symbols, and set them to the correct value. */ | |
5839 | ||
5840 | static void | |
1579bae1 | 5841 | lang_set_startof (void) |
252b5132 RH |
5842 | { |
5843 | asection *s; | |
5844 | ||
0e1862bb | 5845 | if (bfd_link_relocatable (&link_info)) |
252b5132 RH |
5846 | return; |
5847 | ||
f13a99db | 5848 | for (s = link_info.output_bfd->sections; s != NULL; s = s->next) |
252b5132 RH |
5849 | { |
5850 | const char *secname; | |
5851 | char *buf; | |
5852 | struct bfd_link_hash_entry *h; | |
5853 | ||
f13a99db | 5854 | secname = bfd_get_section_name (link_info.output_bfd, s); |
1e9cc1c2 | 5855 | buf = (char *) xmalloc (10 + strlen (secname)); |
252b5132 RH |
5856 | |
5857 | sprintf (buf, ".startof.%s", secname); | |
b34976b6 | 5858 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
5859 | if (h != NULL && h->type == bfd_link_hash_undefined) |
5860 | { | |
5861 | h->type = bfd_link_hash_defined; | |
d2667025 AM |
5862 | h->u.def.value = 0; |
5863 | h->u.def.section = s; | |
252b5132 RH |
5864 | } |
5865 | ||
5866 | sprintf (buf, ".sizeof.%s", secname); | |
b34976b6 | 5867 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
5868 | if (h != NULL && h->type == bfd_link_hash_undefined) |
5869 | { | |
5870 | h->type = bfd_link_hash_defined; | |
eea6121a | 5871 | h->u.def.value = TO_ADDR (s->size); |
252b5132 RH |
5872 | h->u.def.section = bfd_abs_section_ptr; |
5873 | } | |
5874 | ||
5875 | free (buf); | |
5876 | } | |
5877 | } | |
5878 | ||
5879 | static void | |
750877ba | 5880 | lang_end (void) |
252b5132 RH |
5881 | { |
5882 | struct bfd_link_hash_entry *h; | |
b34976b6 | 5883 | bfd_boolean warn; |
252b5132 | 5884 | |
0e1862bb L |
5885 | if ((bfd_link_relocatable (&link_info) && !link_info.gc_sections) |
5886 | || bfd_link_dll (&link_info)) | |
71934f94 | 5887 | warn = entry_from_cmdline; |
252b5132 | 5888 | else |
b34976b6 | 5889 | warn = TRUE; |
252b5132 | 5890 | |
ac69cbc6 TG |
5891 | /* Force the user to specify a root when generating a relocatable with |
5892 | --gc-sections. */ | |
0e1862bb | 5893 | if (link_info.gc_sections && bfd_link_relocatable (&link_info) |
24898b70 | 5894 | && !(entry_from_cmdline || undef_from_cmdline)) |
ac69cbc6 TG |
5895 | einfo (_("%P%F: gc-sections requires either an entry or " |
5896 | "an undefined symbol\n")); | |
5897 | ||
1579bae1 | 5898 | if (entry_symbol.name == NULL) |
252b5132 | 5899 | { |
a359509e ZW |
5900 | /* No entry has been specified. Look for the default entry, but |
5901 | don't warn if we don't find it. */ | |
5902 | entry_symbol.name = entry_symbol_default; | |
b34976b6 | 5903 | warn = FALSE; |
252b5132 RH |
5904 | } |
5905 | ||
e3e942e9 | 5906 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name, |
b34976b6 | 5907 | FALSE, FALSE, TRUE); |
1579bae1 | 5908 | if (h != NULL |
252b5132 RH |
5909 | && (h->type == bfd_link_hash_defined |
5910 | || h->type == bfd_link_hash_defweak) | |
5911 | && h->u.def.section->output_section != NULL) | |
5912 | { | |
5913 | bfd_vma val; | |
5914 | ||
5915 | val = (h->u.def.value | |
f13a99db | 5916 | + bfd_get_section_vma (link_info.output_bfd, |
252b5132 RH |
5917 | h->u.def.section->output_section) |
5918 | + h->u.def.section->output_offset); | |
f13a99db | 5919 | if (! bfd_set_start_address (link_info.output_bfd, val)) |
e3e942e9 | 5920 | einfo (_("%P%F:%s: can't set start address\n"), entry_symbol.name); |
252b5132 RH |
5921 | } |
5922 | else | |
5923 | { | |
5924 | bfd_vma val; | |
5f992e62 | 5925 | const char *send; |
252b5132 RH |
5926 | |
5927 | /* We couldn't find the entry symbol. Try parsing it as a | |
afd7a018 | 5928 | number. */ |
e3e942e9 | 5929 | val = bfd_scan_vma (entry_symbol.name, &send, 0); |
252b5132 RH |
5930 | if (*send == '\0') |
5931 | { | |
f13a99db | 5932 | if (! bfd_set_start_address (link_info.output_bfd, val)) |
252b5132 RH |
5933 | einfo (_("%P%F: can't set start address\n")); |
5934 | } | |
5935 | else | |
5936 | { | |
5937 | asection *ts; | |
5938 | ||
5939 | /* Can't find the entry symbol, and it's not a number. Use | |
5940 | the first address in the text section. */ | |
f13a99db | 5941 | ts = bfd_get_section_by_name (link_info.output_bfd, entry_section); |
1579bae1 | 5942 | if (ts != NULL) |
252b5132 RH |
5943 | { |
5944 | if (warn) | |
6feb9908 AM |
5945 | einfo (_("%P: warning: cannot find entry symbol %s;" |
5946 | " defaulting to %V\n"), | |
e3e942e9 | 5947 | entry_symbol.name, |
f13a99db AM |
5948 | bfd_get_section_vma (link_info.output_bfd, ts)); |
5949 | if (!(bfd_set_start_address | |
5950 | (link_info.output_bfd, | |
5951 | bfd_get_section_vma (link_info.output_bfd, ts)))) | |
252b5132 RH |
5952 | einfo (_("%P%F: can't set start address\n")); |
5953 | } | |
5954 | else | |
5955 | { | |
5956 | if (warn) | |
6feb9908 AM |
5957 | einfo (_("%P: warning: cannot find entry symbol %s;" |
5958 | " not setting start address\n"), | |
e3e942e9 | 5959 | entry_symbol.name); |
252b5132 RH |
5960 | } |
5961 | } | |
5962 | } | |
5963 | } | |
5964 | ||
5965 | /* This is a small function used when we want to ignore errors from | |
5966 | BFD. */ | |
5967 | ||
5968 | static void | |
87f2a346 | 5969 | ignore_bfd_errors (const char *s ATTRIBUTE_UNUSED, ...) |
252b5132 RH |
5970 | { |
5971 | /* Don't do anything. */ | |
5972 | } | |
5973 | ||
5974 | /* Check that the architecture of all the input files is compatible | |
5975 | with the output file. Also call the backend to let it do any | |
5976 | other checking that is needed. */ | |
5977 | ||
5978 | static void | |
1579bae1 | 5979 | lang_check (void) |
252b5132 RH |
5980 | { |
5981 | lang_statement_union_type *file; | |
5982 | bfd *input_bfd; | |
5f992e62 | 5983 | const bfd_arch_info_type *compatible; |
252b5132 | 5984 | |
1579bae1 | 5985 | for (file = file_chain.head; file != NULL; file = file->input_statement.next) |
252b5132 | 5986 | { |
422b6f14 DK |
5987 | #ifdef ENABLE_PLUGINS |
5988 | /* Don't check format of files claimed by plugin. */ | |
66be1055 | 5989 | if (file->input_statement.flags.claimed) |
422b6f14 DK |
5990 | continue; |
5991 | #endif /* ENABLE_PLUGINS */ | |
252b5132 | 5992 | input_bfd = file->input_statement.the_bfd; |
6feb9908 | 5993 | compatible |
f13a99db | 5994 | = bfd_arch_get_compatible (input_bfd, link_info.output_bfd, |
6feb9908 | 5995 | command_line.accept_unknown_input_arch); |
30cba025 AM |
5996 | |
5997 | /* In general it is not possible to perform a relocatable | |
5998 | link between differing object formats when the input | |
5999 | file has relocations, because the relocations in the | |
6000 | input format may not have equivalent representations in | |
6001 | the output format (and besides BFD does not translate | |
6002 | relocs for other link purposes than a final link). */ | |
0e1862bb L |
6003 | if ((bfd_link_relocatable (&link_info) |
6004 | || link_info.emitrelocations) | |
30cba025 | 6005 | && (compatible == NULL |
f13a99db AM |
6006 | || (bfd_get_flavour (input_bfd) |
6007 | != bfd_get_flavour (link_info.output_bfd))) | |
30cba025 AM |
6008 | && (bfd_get_file_flags (input_bfd) & HAS_RELOC) != 0) |
6009 | { | |
6feb9908 AM |
6010 | einfo (_("%P%F: Relocatable linking with relocations from" |
6011 | " format %s (%B) to format %s (%B) is not supported\n"), | |
30cba025 | 6012 | bfd_get_target (input_bfd), input_bfd, |
f13a99db | 6013 | bfd_get_target (link_info.output_bfd), link_info.output_bfd); |
30cba025 AM |
6014 | /* einfo with %F exits. */ |
6015 | } | |
6016 | ||
252b5132 RH |
6017 | if (compatible == NULL) |
6018 | { | |
6019 | if (command_line.warn_mismatch) | |
9e7750f2 | 6020 | einfo (_("%P%X: %s architecture of input file `%B'" |
6feb9908 | 6021 | " is incompatible with %s output\n"), |
252b5132 | 6022 | bfd_printable_name (input_bfd), input_bfd, |
f13a99db | 6023 | bfd_printable_name (link_info.output_bfd)); |
252b5132 | 6024 | } |
b9247304 | 6025 | else if (bfd_count_sections (input_bfd)) |
252b5132 | 6026 | { |
b9247304 | 6027 | /* If the input bfd has no contents, it shouldn't set the |
b7a26f91 | 6028 | private data of the output bfd. */ |
b9247304 | 6029 | |
252b5132 RH |
6030 | bfd_error_handler_type pfn = NULL; |
6031 | ||
6032 | /* If we aren't supposed to warn about mismatched input | |
afd7a018 AM |
6033 | files, temporarily set the BFD error handler to a |
6034 | function which will do nothing. We still want to call | |
6035 | bfd_merge_private_bfd_data, since it may set up | |
6036 | information which is needed in the output file. */ | |
252b5132 RH |
6037 | if (! command_line.warn_mismatch) |
6038 | pfn = bfd_set_error_handler (ignore_bfd_errors); | |
f13a99db | 6039 | if (! bfd_merge_private_bfd_data (input_bfd, link_info.output_bfd)) |
252b5132 RH |
6040 | { |
6041 | if (command_line.warn_mismatch) | |
6feb9908 AM |
6042 | einfo (_("%P%X: failed to merge target specific data" |
6043 | " of file %B\n"), input_bfd); | |
252b5132 RH |
6044 | } |
6045 | if (! command_line.warn_mismatch) | |
6046 | bfd_set_error_handler (pfn); | |
6047 | } | |
6048 | } | |
6049 | } | |
6050 | ||
6051 | /* Look through all the global common symbols and attach them to the | |
6052 | correct section. The -sort-common command line switch may be used | |
de7dd2bd | 6053 | to roughly sort the entries by alignment. */ |
252b5132 RH |
6054 | |
6055 | static void | |
1579bae1 | 6056 | lang_common (void) |
252b5132 | 6057 | { |
4818e05f AM |
6058 | if (command_line.inhibit_common_definition) |
6059 | return; | |
0e1862bb | 6060 | if (bfd_link_relocatable (&link_info) |
252b5132 RH |
6061 | && ! command_line.force_common_definition) |
6062 | return; | |
6063 | ||
6064 | if (! config.sort_common) | |
1579bae1 | 6065 | bfd_link_hash_traverse (link_info.hash, lang_one_common, NULL); |
252b5132 RH |
6066 | else |
6067 | { | |
de7dd2bd NC |
6068 | unsigned int power; |
6069 | ||
6070 | if (config.sort_common == sort_descending) | |
967928e9 AM |
6071 | { |
6072 | for (power = 4; power > 0; power--) | |
6073 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
6074 | ||
6075 | power = 0; | |
6076 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
6077 | } | |
de7dd2bd | 6078 | else |
967928e9 AM |
6079 | { |
6080 | for (power = 0; power <= 4; power++) | |
6081 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); | |
252b5132 | 6082 | |
2dc0e7b4 | 6083 | power = (unsigned int) -1; |
de7dd2bd NC |
6084 | bfd_link_hash_traverse (link_info.hash, lang_one_common, &power); |
6085 | } | |
252b5132 RH |
6086 | } |
6087 | } | |
6088 | ||
6089 | /* Place one common symbol in the correct section. */ | |
6090 | ||
b34976b6 | 6091 | static bfd_boolean |
1579bae1 | 6092 | lang_one_common (struct bfd_link_hash_entry *h, void *info) |
252b5132 RH |
6093 | { |
6094 | unsigned int power_of_two; | |
6095 | bfd_vma size; | |
6096 | asection *section; | |
6097 | ||
6098 | if (h->type != bfd_link_hash_common) | |
b34976b6 | 6099 | return TRUE; |
252b5132 RH |
6100 | |
6101 | size = h->u.c.size; | |
6102 | power_of_two = h->u.c.p->alignment_power; | |
6103 | ||
de7dd2bd NC |
6104 | if (config.sort_common == sort_descending |
6105 | && power_of_two < *(unsigned int *) info) | |
6106 | return TRUE; | |
6107 | else if (config.sort_common == sort_ascending | |
967928e9 | 6108 | && power_of_two > *(unsigned int *) info) |
b34976b6 | 6109 | return TRUE; |
252b5132 RH |
6110 | |
6111 | section = h->u.c.p->section; | |
3023e3f6 RS |
6112 | if (!bfd_define_common_symbol (link_info.output_bfd, &link_info, h)) |
6113 | einfo (_("%P%F: Could not define common symbol `%T': %E\n"), | |
6114 | h->root.string); | |
252b5132 RH |
6115 | |
6116 | if (config.map_file != NULL) | |
6117 | { | |
b34976b6 | 6118 | static bfd_boolean header_printed; |
252b5132 RH |
6119 | int len; |
6120 | char *name; | |
6121 | char buf[50]; | |
6122 | ||
6123 | if (! header_printed) | |
6124 | { | |
6125 | minfo (_("\nAllocating common symbols\n")); | |
6126 | minfo (_("Common symbol size file\n\n")); | |
b34976b6 | 6127 | header_printed = TRUE; |
252b5132 RH |
6128 | } |
6129 | ||
f13a99db | 6130 | name = bfd_demangle (link_info.output_bfd, h->root.string, |
73705ac3 | 6131 | DMGL_ANSI | DMGL_PARAMS); |
d7d4c8de AM |
6132 | if (name == NULL) |
6133 | { | |
6134 | minfo ("%s", h->root.string); | |
6135 | len = strlen (h->root.string); | |
6136 | } | |
6137 | else | |
6138 | { | |
6139 | minfo ("%s", name); | |
6140 | len = strlen (name); | |
6141 | free (name); | |
6142 | } | |
252b5132 RH |
6143 | |
6144 | if (len >= 19) | |
6145 | { | |
6146 | print_nl (); | |
6147 | len = 0; | |
6148 | } | |
6149 | while (len < 20) | |
6150 | { | |
6151 | print_space (); | |
6152 | ++len; | |
6153 | } | |
6154 | ||
6155 | minfo ("0x"); | |
6156 | if (size <= 0xffffffff) | |
6157 | sprintf (buf, "%lx", (unsigned long) size); | |
6158 | else | |
6159 | sprintf_vma (buf, size); | |
6160 | minfo ("%s", buf); | |
6161 | len = strlen (buf); | |
6162 | ||
6163 | while (len < 16) | |
6164 | { | |
6165 | print_space (); | |
6166 | ++len; | |
6167 | } | |
6168 | ||
6169 | minfo ("%B\n", section->owner); | |
6170 | } | |
6171 | ||
b34976b6 | 6172 | return TRUE; |
252b5132 RH |
6173 | } |
6174 | ||
c005eb9e AB |
6175 | /* Handle a single orphan section S, placing the orphan into an appropriate |
6176 | output section. The effects of the --orphan-handling command line | |
6177 | option are handled here. */ | |
6178 | ||
6179 | static void | |
6180 | ldlang_place_orphan (asection *s) | |
6181 | { | |
6182 | if (config.orphan_handling == orphan_handling_discard) | |
6183 | { | |
6184 | lang_output_section_statement_type *os; | |
6185 | os = lang_output_section_statement_lookup (DISCARD_SECTION_NAME, 0, | |
6186 | TRUE); | |
6187 | if (os->addr_tree == NULL | |
6188 | && (bfd_link_relocatable (&link_info) | |
6189 | || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)) | |
6190 | os->addr_tree = exp_intop (0); | |
6191 | lang_add_section (&os->children, s, NULL, os); | |
6192 | } | |
6193 | else | |
6194 | { | |
6195 | lang_output_section_statement_type *os; | |
6196 | const char *name = s->name; | |
6197 | int constraint = 0; | |
6198 | ||
6199 | if (config.orphan_handling == orphan_handling_error) | |
6200 | einfo ("%X%P: error: unplaced orphan section `%A' from `%B'.\n", | |
6201 | s, s->owner); | |
6202 | ||
6203 | if (config.unique_orphan_sections || unique_section_p (s, NULL)) | |
6204 | constraint = SPECIAL; | |
6205 | ||
6206 | os = ldemul_place_orphan (s, name, constraint); | |
6207 | if (os == NULL) | |
6208 | { | |
6209 | os = lang_output_section_statement_lookup (name, constraint, TRUE); | |
6210 | if (os->addr_tree == NULL | |
6211 | && (bfd_link_relocatable (&link_info) | |
6212 | || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)) | |
6213 | os->addr_tree = exp_intop (0); | |
6214 | lang_add_section (&os->children, s, NULL, os); | |
6215 | } | |
6216 | ||
6217 | if (config.orphan_handling == orphan_handling_warn) | |
6218 | einfo ("%P: warning: orphan section `%A' from `%B' being " | |
6219 | "placed in section `%s'.\n", | |
6220 | s, s->owner, os->name); | |
6221 | } | |
6222 | } | |
6223 | ||
08da4cac KH |
6224 | /* Run through the input files and ensure that every input section has |
6225 | somewhere to go. If one is found without a destination then create | |
6226 | an input request and place it into the statement tree. */ | |
252b5132 RH |
6227 | |
6228 | static void | |
1579bae1 | 6229 | lang_place_orphans (void) |
252b5132 | 6230 | { |
e50d8076 | 6231 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
252b5132 RH |
6232 | { |
6233 | asection *s; | |
6234 | ||
1579bae1 | 6235 | for (s = file->the_bfd->sections; s != NULL; s = s->next) |
252b5132 | 6236 | { |
1579bae1 | 6237 | if (s->output_section == NULL) |
252b5132 | 6238 | { |
396a2467 | 6239 | /* This section of the file is not attached, root |
afd7a018 | 6240 | around for a sensible place for it to go. */ |
252b5132 | 6241 | |
66be1055 | 6242 | if (file->flags.just_syms) |
1449d79b AM |
6243 | bfd_link_just_syms (file->the_bfd, s, &link_info); |
6244 | else if ((s->flags & SEC_EXCLUDE) != 0) | |
164e712d | 6245 | s->output_section = bfd_abs_section_ptr; |
252b5132 RH |
6246 | else if (strcmp (s->name, "COMMON") == 0) |
6247 | { | |
6248 | /* This is a lonely common section which must have | |
6249 | come from an archive. We attach to the section | |
6250 | with the wildcard. */ | |
0e1862bb | 6251 | if (!bfd_link_relocatable (&link_info) |
252b5132 RH |
6252 | || command_line.force_common_definition) |
6253 | { | |
6254 | if (default_common_section == NULL) | |
66c103b7 AM |
6255 | default_common_section |
6256 | = lang_output_section_statement_lookup (".bss", 0, | |
6257 | TRUE); | |
39dcfe18 | 6258 | lang_add_section (&default_common_section->children, s, |
b9c361e0 | 6259 | NULL, default_common_section); |
252b5132 RH |
6260 | } |
6261 | } | |
252b5132 | 6262 | else |
c005eb9e | 6263 | ldlang_place_orphan (s); |
252b5132 RH |
6264 | } |
6265 | } | |
6266 | } | |
6267 | } | |
6268 | ||
252b5132 | 6269 | void |
1579bae1 | 6270 | lang_set_flags (lang_memory_region_type *ptr, const char *flags, int invert) |
252b5132 | 6271 | { |
aa8804e4 | 6272 | flagword *ptr_flags; |
252b5132 | 6273 | |
aa8804e4 | 6274 | ptr_flags = invert ? &ptr->not_flags : &ptr->flags; |
f0673d20 | 6275 | |
252b5132 RH |
6276 | while (*flags) |
6277 | { | |
6278 | switch (*flags) | |
6279 | { | |
f0673d20 NC |
6280 | /* PR 17900: An exclamation mark in the attributes reverses |
6281 | the sense of any of the attributes that follow. */ | |
6282 | case '!': | |
6283 | invert = ! invert; | |
6284 | ptr_flags = invert ? &ptr->not_flags : &ptr->flags; | |
6285 | break; | |
6286 | ||
252b5132 RH |
6287 | case 'A': case 'a': |
6288 | *ptr_flags |= SEC_ALLOC; | |
6289 | break; | |
6290 | ||
6291 | case 'R': case 'r': | |
6292 | *ptr_flags |= SEC_READONLY; | |
6293 | break; | |
6294 | ||
6295 | case 'W': case 'w': | |
6296 | *ptr_flags |= SEC_DATA; | |
6297 | break; | |
6298 | ||
6299 | case 'X': case 'x': | |
6300 | *ptr_flags |= SEC_CODE; | |
6301 | break; | |
6302 | ||
6303 | case 'L': case 'l': | |
6304 | case 'I': case 'i': | |
6305 | *ptr_flags |= SEC_LOAD; | |
6306 | break; | |
6307 | ||
6308 | default: | |
f0673d20 | 6309 | einfo (_("%P%F: invalid character %c (%d) in flags\n"), * flags, * flags); |
252b5132 RH |
6310 | break; |
6311 | } | |
6312 | flags++; | |
6313 | } | |
6314 | } | |
6315 | ||
6316 | /* Call a function on each input file. This function will be called | |
6317 | on an archive, but not on the elements. */ | |
6318 | ||
6319 | void | |
1579bae1 | 6320 | lang_for_each_input_file (void (*func) (lang_input_statement_type *)) |
252b5132 RH |
6321 | { |
6322 | lang_input_statement_type *f; | |
6323 | ||
6324 | for (f = (lang_input_statement_type *) input_file_chain.head; | |
6325 | f != NULL; | |
6326 | f = (lang_input_statement_type *) f->next_real_file) | |
6327 | func (f); | |
6328 | } | |
6329 | ||
6330 | /* Call a function on each file. The function will be called on all | |
6331 | the elements of an archive which are included in the link, but will | |
6332 | not be called on the archive file itself. */ | |
6333 | ||
6334 | void | |
1579bae1 | 6335 | lang_for_each_file (void (*func) (lang_input_statement_type *)) |
252b5132 | 6336 | { |
e50d8076 | 6337 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 RH |
6338 | { |
6339 | func (f); | |
6340 | } | |
6341 | } | |
6342 | ||
252b5132 | 6343 | void |
1579bae1 | 6344 | ldlang_add_file (lang_input_statement_type *entry) |
252b5132 | 6345 | { |
252b5132 RH |
6346 | lang_statement_append (&file_chain, |
6347 | (lang_statement_union_type *) entry, | |
6348 | &entry->next); | |
6349 | ||
6350 | /* The BFD linker needs to have a list of all input BFDs involved in | |
6351 | a link. */ | |
c72f2fb2 | 6352 | ASSERT (entry->the_bfd->link.next == NULL); |
f13a99db | 6353 | ASSERT (entry->the_bfd != link_info.output_bfd); |
a9a4c53e AM |
6354 | |
6355 | *link_info.input_bfds_tail = entry->the_bfd; | |
c72f2fb2 | 6356 | link_info.input_bfds_tail = &entry->the_bfd->link.next; |
1579bae1 | 6357 | entry->the_bfd->usrdata = entry; |
252b5132 RH |
6358 | bfd_set_gp_size (entry->the_bfd, g_switch_value); |
6359 | ||
6360 | /* Look through the sections and check for any which should not be | |
6361 | included in the link. We need to do this now, so that we can | |
6362 | notice when the backend linker tries to report multiple | |
6363 | definition errors for symbols which are in sections we aren't | |
6364 | going to link. FIXME: It might be better to entirely ignore | |
6365 | symbols which are defined in sections which are going to be | |
6366 | discarded. This would require modifying the backend linker for | |
6367 | each backend which might set the SEC_LINK_ONCE flag. If we do | |
6368 | this, we should probably handle SEC_EXCLUDE in the same way. */ | |
6369 | ||
1579bae1 | 6370 | bfd_map_over_sections (entry->the_bfd, section_already_linked, entry); |
252b5132 RH |
6371 | } |
6372 | ||
6373 | void | |
1579bae1 | 6374 | lang_add_output (const char *name, int from_script) |
252b5132 RH |
6375 | { |
6376 | /* Make -o on command line override OUTPUT in script. */ | |
7c519c12 | 6377 | if (!had_output_filename || !from_script) |
252b5132 RH |
6378 | { |
6379 | output_filename = name; | |
b34976b6 | 6380 | had_output_filename = TRUE; |
252b5132 RH |
6381 | } |
6382 | } | |
6383 | ||
252b5132 | 6384 | static int |
1579bae1 | 6385 | topower (int x) |
252b5132 RH |
6386 | { |
6387 | unsigned int i = 1; | |
6388 | int l; | |
6389 | ||
6390 | if (x < 0) | |
6391 | return -1; | |
6392 | ||
5f992e62 | 6393 | for (l = 0; l < 32; l++) |
252b5132 RH |
6394 | { |
6395 | if (i >= (unsigned int) x) | |
6396 | return l; | |
6397 | i <<= 1; | |
6398 | } | |
6399 | ||
6400 | return 0; | |
6401 | } | |
6402 | ||
aea4bd9d | 6403 | lang_output_section_statement_type * |
1579bae1 AM |
6404 | lang_enter_output_section_statement (const char *output_section_statement_name, |
6405 | etree_type *address_exp, | |
6406 | enum section_type sectype, | |
1579bae1 AM |
6407 | etree_type *align, |
6408 | etree_type *subalign, | |
0841712e | 6409 | etree_type *ebase, |
1eec346e NC |
6410 | int constraint, |
6411 | int align_with_input) | |
252b5132 RH |
6412 | { |
6413 | lang_output_section_statement_type *os; | |
6414 | ||
66c103b7 AM |
6415 | os = lang_output_section_statement_lookup (output_section_statement_name, |
6416 | constraint, TRUE); | |
967928e9 | 6417 | current_section = os; |
252b5132 | 6418 | |
1579bae1 | 6419 | if (os->addr_tree == NULL) |
08da4cac KH |
6420 | { |
6421 | os->addr_tree = address_exp; | |
6422 | } | |
252b5132 RH |
6423 | os->sectype = sectype; |
6424 | if (sectype != noload_section) | |
6425 | os->flags = SEC_NO_FLAGS; | |
6426 | else | |
6427 | os->flags = SEC_NEVER_LOAD; | |
e5caa5e0 | 6428 | os->block_value = 1; |
66c103b7 AM |
6429 | |
6430 | /* Make next things chain into subchain of this. */ | |
bde18da4 | 6431 | push_stat_ptr (&os->children); |
252b5132 | 6432 | |
1eec346e NC |
6433 | os->align_lma_with_input = align_with_input == ALIGN_WITH_INPUT; |
6434 | if (os->align_lma_with_input && align != NULL) | |
6435 | einfo (_("%F%P:%S: error: align with input and explicit align specified\n"), NULL); | |
6436 | ||
08da4cac | 6437 | os->subsection_alignment = |
e9ee469a | 6438 | topower (exp_get_value_int (subalign, -1, "subsection alignment")); |
08da4cac | 6439 | os->section_alignment = |
e9ee469a | 6440 | topower (exp_get_value_int (align, -1, "section alignment")); |
252b5132 RH |
6441 | |
6442 | os->load_base = ebase; | |
aea4bd9d | 6443 | return os; |
252b5132 RH |
6444 | } |
6445 | ||
252b5132 | 6446 | void |
1579bae1 | 6447 | lang_final (void) |
252b5132 | 6448 | { |
d3ce72d0 NC |
6449 | lang_output_statement_type *new_stmt; |
6450 | ||
6451 | new_stmt = new_stat (lang_output_statement, stat_ptr); | |
6452 | new_stmt->name = output_filename; | |
252b5132 RH |
6453 | } |
6454 | ||
08da4cac KH |
6455 | /* Reset the current counters in the regions. */ |
6456 | ||
e3dc8847 | 6457 | void |
1579bae1 | 6458 | lang_reset_memory_regions (void) |
252b5132 RH |
6459 | { |
6460 | lang_memory_region_type *p = lang_memory_region_list; | |
b3327aad | 6461 | asection *o; |
e9ee469a | 6462 | lang_output_section_statement_type *os; |
252b5132 | 6463 | |
1579bae1 | 6464 | for (p = lang_memory_region_list; p != NULL; p = p->next) |
252b5132 | 6465 | { |
252b5132 | 6466 | p->current = p->origin; |
66e28d60 | 6467 | p->last_os = NULL; |
252b5132 | 6468 | } |
b3327aad | 6469 | |
e9ee469a AM |
6470 | for (os = &lang_output_section_statement.head->output_section_statement; |
6471 | os != NULL; | |
6472 | os = os->next) | |
cde9e0be AM |
6473 | { |
6474 | os->processed_vma = FALSE; | |
6475 | os->processed_lma = FALSE; | |
6476 | } | |
e9ee469a | 6477 | |
f13a99db | 6478 | for (o = link_info.output_bfd->sections; o != NULL; o = o->next) |
1a23a9e6 AM |
6479 | { |
6480 | /* Save the last size for possible use by bfd_relax_section. */ | |
6481 | o->rawsize = o->size; | |
6482 | o->size = 0; | |
6483 | } | |
252b5132 RH |
6484 | } |
6485 | ||
164e712d | 6486 | /* Worker for lang_gc_sections_1. */ |
252b5132 RH |
6487 | |
6488 | static void | |
1579bae1 AM |
6489 | gc_section_callback (lang_wild_statement_type *ptr, |
6490 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
6491 | asection *section, | |
b9c361e0 | 6492 | struct flag_info *sflag_info ATTRIBUTE_UNUSED, |
1579bae1 AM |
6493 | lang_input_statement_type *file ATTRIBUTE_UNUSED, |
6494 | void *data ATTRIBUTE_UNUSED) | |
252b5132 | 6495 | { |
164e712d AM |
6496 | /* If the wild pattern was marked KEEP, the member sections |
6497 | should be as well. */ | |
4dec4d4e RH |
6498 | if (ptr->keep_sections) |
6499 | section->flags |= SEC_KEEP; | |
252b5132 RH |
6500 | } |
6501 | ||
252b5132 RH |
6502 | /* Iterate over sections marking them against GC. */ |
6503 | ||
6504 | static void | |
1579bae1 | 6505 | lang_gc_sections_1 (lang_statement_union_type *s) |
252b5132 | 6506 | { |
1579bae1 | 6507 | for (; s != NULL; s = s->header.next) |
252b5132 RH |
6508 | { |
6509 | switch (s->header.type) | |
6510 | { | |
6511 | case lang_wild_statement_enum: | |
164e712d | 6512 | walk_wild (&s->wild_statement, gc_section_callback, NULL); |
abc6ab0a | 6513 | break; |
252b5132 RH |
6514 | case lang_constructors_statement_enum: |
6515 | lang_gc_sections_1 (constructor_list.head); | |
6516 | break; | |
6517 | case lang_output_section_statement_enum: | |
6518 | lang_gc_sections_1 (s->output_section_statement.children.head); | |
6519 | break; | |
6520 | case lang_group_statement_enum: | |
6521 | lang_gc_sections_1 (s->group_statement.children.head); | |
6522 | break; | |
6523 | default: | |
6524 | break; | |
6525 | } | |
6526 | } | |
6527 | } | |
6528 | ||
6529 | static void | |
1579bae1 | 6530 | lang_gc_sections (void) |
252b5132 | 6531 | { |
252b5132 | 6532 | /* Keep all sections so marked in the link script. */ |
252b5132 RH |
6533 | lang_gc_sections_1 (statement_list.head); |
6534 | ||
9ca57817 AM |
6535 | /* SEC_EXCLUDE is ignored when doing a relocatable link, except in |
6536 | the special case of debug info. (See bfd/stabs.c) | |
6537 | Twiddle the flag here, to simplify later linker code. */ | |
0e1862bb | 6538 | if (bfd_link_relocatable (&link_info)) |
9ca57817 AM |
6539 | { |
6540 | LANG_FOR_EACH_INPUT_STATEMENT (f) | |
6541 | { | |
6542 | asection *sec; | |
9e2278f5 | 6543 | #ifdef ENABLE_PLUGINS |
66be1055 | 6544 | if (f->flags.claimed) |
9e2278f5 AM |
6545 | continue; |
6546 | #endif | |
9ca57817 AM |
6547 | for (sec = f->the_bfd->sections; sec != NULL; sec = sec->next) |
6548 | if ((sec->flags & SEC_DEBUGGING) == 0) | |
6549 | sec->flags &= ~SEC_EXCLUDE; | |
6550 | } | |
6551 | } | |
6552 | ||
57316bff | 6553 | if (link_info.gc_sections) |
f13a99db | 6554 | bfd_gc_sections (link_info.output_bfd, &link_info); |
252b5132 RH |
6555 | } |
6556 | ||
b10a8ae0 L |
6557 | /* Worker for lang_find_relro_sections_1. */ |
6558 | ||
6559 | static void | |
6560 | find_relro_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED, | |
6561 | struct wildcard_list *sec ATTRIBUTE_UNUSED, | |
6562 | asection *section, | |
b9c361e0 | 6563 | struct flag_info *sflag_info ATTRIBUTE_UNUSED, |
b10a8ae0 L |
6564 | lang_input_statement_type *file ATTRIBUTE_UNUSED, |
6565 | void *data) | |
6566 | { | |
6567 | /* Discarded, excluded and ignored sections effectively have zero | |
6568 | size. */ | |
6569 | if (section->output_section != NULL | |
f13a99db | 6570 | && section->output_section->owner == link_info.output_bfd |
b10a8ae0 L |
6571 | && (section->output_section->flags & SEC_EXCLUDE) == 0 |
6572 | && !IGNORE_SECTION (section) | |
6573 | && section->size != 0) | |
6574 | { | |
6575 | bfd_boolean *has_relro_section = (bfd_boolean *) data; | |
6576 | *has_relro_section = TRUE; | |
6577 | } | |
6578 | } | |
6579 | ||
6580 | /* Iterate over sections for relro sections. */ | |
6581 | ||
6582 | static void | |
6583 | lang_find_relro_sections_1 (lang_statement_union_type *s, | |
6584 | bfd_boolean *has_relro_section) | |
6585 | { | |
6586 | if (*has_relro_section) | |
6587 | return; | |
6588 | ||
6589 | for (; s != NULL; s = s->header.next) | |
6590 | { | |
6591 | if (s == expld.dataseg.relro_end_stat) | |
6592 | break; | |
6593 | ||
6594 | switch (s->header.type) | |
6595 | { | |
6596 | case lang_wild_statement_enum: | |
6597 | walk_wild (&s->wild_statement, | |
6598 | find_relro_section_callback, | |
6599 | has_relro_section); | |
6600 | break; | |
6601 | case lang_constructors_statement_enum: | |
6602 | lang_find_relro_sections_1 (constructor_list.head, | |
6603 | has_relro_section); | |
6604 | break; | |
6605 | case lang_output_section_statement_enum: | |
6606 | lang_find_relro_sections_1 (s->output_section_statement.children.head, | |
6607 | has_relro_section); | |
6608 | break; | |
6609 | case lang_group_statement_enum: | |
6610 | lang_find_relro_sections_1 (s->group_statement.children.head, | |
6611 | has_relro_section); | |
6612 | break; | |
6613 | default: | |
6614 | break; | |
6615 | } | |
6616 | } | |
6617 | } | |
6618 | ||
6619 | static void | |
6620 | lang_find_relro_sections (void) | |
6621 | { | |
6622 | bfd_boolean has_relro_section = FALSE; | |
6623 | ||
6624 | /* Check all sections in the link script. */ | |
6625 | ||
6626 | lang_find_relro_sections_1 (expld.dataseg.relro_start_stat, | |
6627 | &has_relro_section); | |
6628 | ||
6629 | if (!has_relro_section) | |
6630 | link_info.relro = FALSE; | |
6631 | } | |
6632 | ||
fbbc3759 L |
6633 | /* Relax all sections until bfd_relax_section gives up. */ |
6634 | ||
eaeb0a9d AM |
6635 | void |
6636 | lang_relax_sections (bfd_boolean need_layout) | |
fbbc3759 | 6637 | { |
28d5f677 | 6638 | if (RELAXATION_ENABLED) |
fbbc3759 | 6639 | { |
eaeb0a9d AM |
6640 | /* We may need more than one relaxation pass. */ |
6641 | int i = link_info.relax_pass; | |
fbbc3759 | 6642 | |
eaeb0a9d AM |
6643 | /* The backend can use it to determine the current pass. */ |
6644 | link_info.relax_pass = 0; | |
fbbc3759 | 6645 | |
eaeb0a9d AM |
6646 | while (i--) |
6647 | { | |
6648 | /* Keep relaxing until bfd_relax_section gives up. */ | |
6649 | bfd_boolean relax_again; | |
fbbc3759 | 6650 | |
eaeb0a9d AM |
6651 | link_info.relax_trip = -1; |
6652 | do | |
6653 | { | |
6654 | link_info.relax_trip++; | |
6655 | ||
6656 | /* Note: pe-dll.c does something like this also. If you find | |
6657 | you need to change this code, you probably need to change | |
6658 | pe-dll.c also. DJ */ | |
6659 | ||
6660 | /* Do all the assignments with our current guesses as to | |
6661 | section sizes. */ | |
2f65ac72 | 6662 | lang_do_assignments (lang_assigning_phase_enum); |
eaeb0a9d AM |
6663 | |
6664 | /* We must do this after lang_do_assignments, because it uses | |
6665 | size. */ | |
6666 | lang_reset_memory_regions (); | |
6667 | ||
6668 | /* Perform another relax pass - this time we know where the | |
6669 | globals are, so can make a better guess. */ | |
6670 | relax_again = FALSE; | |
6671 | lang_size_sections (&relax_again, FALSE); | |
6672 | } | |
6673 | while (relax_again); | |
6674 | ||
6675 | link_info.relax_pass++; | |
6676 | } | |
6677 | need_layout = TRUE; | |
6678 | } | |
fbbc3759 | 6679 | |
eaeb0a9d AM |
6680 | if (need_layout) |
6681 | { | |
6682 | /* Final extra sizing to report errors. */ | |
2f65ac72 | 6683 | lang_do_assignments (lang_assigning_phase_enum); |
eaeb0a9d AM |
6684 | lang_reset_memory_regions (); |
6685 | lang_size_sections (NULL, TRUE); | |
fbbc3759 | 6686 | } |
fbbc3759 L |
6687 | } |
6688 | ||
8543fde5 DK |
6689 | #ifdef ENABLE_PLUGINS |
6690 | /* Find the insert point for the plugin's replacement files. We | |
6691 | place them after the first claimed real object file, or if the | |
6692 | first claimed object is an archive member, after the last real | |
6693 | object file immediately preceding the archive. In the event | |
6694 | no objects have been claimed at all, we return the first dummy | |
6695 | object file on the list as the insert point; that works, but | |
6696 | the callee must be careful when relinking the file_chain as it | |
6697 | is not actually on that chain, only the statement_list and the | |
6698 | input_file list; in that case, the replacement files must be | |
6699 | inserted at the head of the file_chain. */ | |
6700 | ||
6701 | static lang_input_statement_type * | |
6702 | find_replacements_insert_point (void) | |
6703 | { | |
6704 | lang_input_statement_type *claim1, *lastobject; | |
6705 | lastobject = &input_file_chain.head->input_statement; | |
6706 | for (claim1 = &file_chain.head->input_statement; | |
6707 | claim1 != NULL; | |
6708 | claim1 = &claim1->next->input_statement) | |
6709 | { | |
66be1055 AM |
6710 | if (claim1->flags.claimed) |
6711 | return claim1->flags.claim_archive ? lastobject : claim1; | |
8543fde5 DK |
6712 | /* Update lastobject if this is a real object file. */ |
6713 | if (claim1->the_bfd && (claim1->the_bfd->my_archive == NULL)) | |
6714 | lastobject = claim1; | |
6715 | } | |
6716 | /* No files were claimed by the plugin. Choose the last object | |
6717 | file found on the list (maybe the first, dummy entry) as the | |
6718 | insert point. */ | |
6719 | return lastobject; | |
6720 | } | |
9e2278f5 AM |
6721 | |
6722 | /* Insert SRCLIST into DESTLIST after given element by chaining | |
6723 | on FIELD as the next-pointer. (Counterintuitively does not need | |
6724 | a pointer to the actual after-node itself, just its chain field.) */ | |
6725 | ||
6726 | static void | |
6727 | lang_list_insert_after (lang_statement_list_type *destlist, | |
6728 | lang_statement_list_type *srclist, | |
6729 | lang_statement_union_type **field) | |
6730 | { | |
6731 | *(srclist->tail) = *field; | |
6732 | *field = srclist->head; | |
6733 | if (destlist->tail == field) | |
6734 | destlist->tail = srclist->tail; | |
6735 | } | |
6736 | ||
6737 | /* Detach new nodes added to DESTLIST since the time ORIGLIST | |
6738 | was taken as a copy of it and leave them in ORIGLIST. */ | |
6739 | ||
6740 | static void | |
6741 | lang_list_remove_tail (lang_statement_list_type *destlist, | |
6742 | lang_statement_list_type *origlist) | |
6743 | { | |
6744 | union lang_statement_union **savetail; | |
6745 | /* Check that ORIGLIST really is an earlier state of DESTLIST. */ | |
6746 | ASSERT (origlist->head == destlist->head); | |
6747 | savetail = origlist->tail; | |
6748 | origlist->head = *(savetail); | |
6749 | origlist->tail = destlist->tail; | |
6750 | destlist->tail = savetail; | |
6751 | *savetail = NULL; | |
6752 | } | |
8543fde5 DK |
6753 | #endif /* ENABLE_PLUGINS */ |
6754 | ||
4153b6db NC |
6755 | /* Add NAME to the list of garbage collection entry points. */ |
6756 | ||
6757 | void | |
6758 | lang_add_gc_name (const char * name) | |
6759 | { | |
6760 | struct bfd_sym_chain *sym; | |
6761 | ||
6762 | if (name == NULL) | |
6763 | return; | |
6764 | ||
6765 | sym = (struct bfd_sym_chain *) stat_alloc (sizeof (*sym)); | |
6766 | ||
6767 | sym->next = link_info.gc_sym_list; | |
6768 | sym->name = name; | |
6769 | link_info.gc_sym_list = sym; | |
6770 | } | |
6771 | ||
252b5132 | 6772 | void |
1579bae1 | 6773 | lang_process (void) |
252b5132 | 6774 | { |
55255dae | 6775 | /* Finalize dynamic list. */ |
40b36307 L |
6776 | if (link_info.dynamic_list) |
6777 | lang_finalize_version_expr_head (&link_info.dynamic_list->head); | |
55255dae | 6778 | |
252b5132 RH |
6779 | current_target = default_target; |
6780 | ||
08da4cac KH |
6781 | /* Open the output file. */ |
6782 | lang_for_each_statement (ldlang_open_output); | |
e5caa5e0 | 6783 | init_opb (); |
252b5132 RH |
6784 | |
6785 | ldemul_create_output_section_statements (); | |
6786 | ||
08da4cac | 6787 | /* Add to the hash table all undefineds on the command line. */ |
252b5132 RH |
6788 | lang_place_undefineds (); |
6789 | ||
082b7297 L |
6790 | if (!bfd_section_already_linked_table_init ()) |
6791 | einfo (_("%P%F: Failed to create hash table\n")); | |
9503fd87 | 6792 | |
08da4cac | 6793 | /* Create a bfd for each input file. */ |
252b5132 | 6794 | current_target = default_target; |
486329aa | 6795 | open_input_bfds (statement_list.head, OPEN_BFD_NORMAL); |
252b5132 | 6796 | |
5d3236ee | 6797 | #ifdef ENABLE_PLUGINS |
716db898 | 6798 | if (link_info.lto_plugin_active) |
f84854b6 | 6799 | { |
8543fde5 DK |
6800 | lang_statement_list_type added; |
6801 | lang_statement_list_type files, inputfiles; | |
9e2278f5 | 6802 | |
f84854b6 L |
6803 | /* Now all files are read, let the plugin(s) decide if there |
6804 | are any more to be added to the link before we call the | |
8543fde5 DK |
6805 | emulation's after_open hook. We create a private list of |
6806 | input statements for this purpose, which we will eventually | |
6807 | insert into the global statment list after the first claimed | |
6808 | file. */ | |
6809 | added = *stat_ptr; | |
6810 | /* We need to manipulate all three chains in synchrony. */ | |
6811 | files = file_chain; | |
6812 | inputfiles = input_file_chain; | |
f84854b6 L |
6813 | if (plugin_call_all_symbols_read ()) |
6814 | einfo (_("%P%F: %s: plugin reported error after all symbols read\n"), | |
6815 | plugin_error_plugin ()); | |
8543fde5 | 6816 | /* Open any newly added files, updating the file chains. */ |
cdaa438c | 6817 | open_input_bfds (*added.tail, OPEN_BFD_NORMAL); |
8543fde5 DK |
6818 | /* Restore the global list pointer now they have all been added. */ |
6819 | lang_list_remove_tail (stat_ptr, &added); | |
6820 | /* And detach the fresh ends of the file lists. */ | |
6821 | lang_list_remove_tail (&file_chain, &files); | |
6822 | lang_list_remove_tail (&input_file_chain, &inputfiles); | |
6823 | /* Were any new files added? */ | |
6824 | if (added.head != NULL) | |
6825 | { | |
6826 | /* If so, we will insert them into the statement list immediately | |
6827 | after the first input file that was claimed by the plugin. */ | |
9e2278f5 | 6828 | plugin_insert = find_replacements_insert_point (); |
8543fde5 DK |
6829 | /* If a plugin adds input files without having claimed any, we |
6830 | don't really have a good idea where to place them. Just putting | |
6831 | them at the start or end of the list is liable to leave them | |
6832 | outside the crtbegin...crtend range. */ | |
9e2278f5 AM |
6833 | ASSERT (plugin_insert != NULL); |
6834 | /* Splice the new statement list into the old one. */ | |
6835 | lang_list_insert_after (stat_ptr, &added, | |
6836 | &plugin_insert->header.next); | |
8543fde5 DK |
6837 | /* Likewise for the file chains. */ |
6838 | lang_list_insert_after (&input_file_chain, &inputfiles, | |
9e2278f5 | 6839 | &plugin_insert->next_real_file); |
8543fde5 DK |
6840 | /* We must be careful when relinking file_chain; we may need to |
6841 | insert the new files at the head of the list if the insert | |
6842 | point chosen is the dummy first input file. */ | |
9e2278f5 AM |
6843 | if (plugin_insert->filename) |
6844 | lang_list_insert_after (&file_chain, &files, &plugin_insert->next); | |
8543fde5 DK |
6845 | else |
6846 | lang_list_insert_after (&file_chain, &files, &file_chain.head); | |
9e2278f5 AM |
6847 | |
6848 | /* Rescan archives in case new undefined symbols have appeared. */ | |
6849 | open_input_bfds (statement_list.head, OPEN_BFD_RESCAN); | |
8543fde5 | 6850 | } |
f84854b6 | 6851 | } |
5d3236ee DK |
6852 | #endif /* ENABLE_PLUGINS */ |
6853 | ||
4153b6db NC |
6854 | /* Make sure that nobody has tried to add a symbol to this list before now. */ |
6855 | ASSERT (link_info.gc_sym_list == NULL); | |
6856 | ||
e3e942e9 | 6857 | link_info.gc_sym_list = &entry_symbol; |
41f46ed9 | 6858 | |
e3e942e9 | 6859 | if (entry_symbol.name == NULL) |
41f46ed9 SKS |
6860 | { |
6861 | link_info.gc_sym_list = ldlang_undef_chain_list_head; | |
6862 | ||
6863 | /* entry_symbol is normally initialied by a ENTRY definition in the | |
6864 | linker script or the -e command line option. But if neither of | |
6865 | these have been used, the target specific backend may still have | |
4153b6db | 6866 | provided an entry symbol via a call to lang_default_entry(). |
41f46ed9 SKS |
6867 | Unfortunately this value will not be processed until lang_end() |
6868 | is called, long after this function has finished. So detect this | |
6869 | case here and add the target's entry symbol to the list of starting | |
6870 | points for garbage collection resolution. */ | |
4153b6db | 6871 | lang_add_gc_name (entry_symbol_default); |
41f46ed9 SKS |
6872 | } |
6873 | ||
4153b6db NC |
6874 | lang_add_gc_name (link_info.init_function); |
6875 | lang_add_gc_name (link_info.fini_function); | |
e3e942e9 | 6876 | |
252b5132 | 6877 | ldemul_after_open (); |
16e4ecc0 AM |
6878 | if (config.map_file != NULL) |
6879 | lang_print_asneeded (); | |
252b5132 | 6880 | |
082b7297 | 6881 | bfd_section_already_linked_table_free (); |
9503fd87 | 6882 | |
252b5132 RH |
6883 | /* Make sure that we're not mixing architectures. We call this |
6884 | after all the input files have been opened, but before we do any | |
6885 | other processing, so that any operations merge_private_bfd_data | |
6886 | does on the output file will be known during the rest of the | |
6887 | link. */ | |
6888 | lang_check (); | |
6889 | ||
6890 | /* Handle .exports instead of a version script if we're told to do so. */ | |
6891 | if (command_line.version_exports_section) | |
6892 | lang_do_version_exports_section (); | |
6893 | ||
6894 | /* Build all sets based on the information gathered from the input | |
6895 | files. */ | |
6896 | ldctor_build_sets (); | |
6897 | ||
2aa9aad9 NC |
6898 | /* PR 13683: We must rerun the assignments prior to running garbage |
6899 | collection in order to make sure that all symbol aliases are resolved. */ | |
6900 | lang_do_assignments (lang_mark_phase_enum); | |
cc9ad334 SKS |
6901 | |
6902 | lang_do_memory_regions(); | |
2aa9aad9 NC |
6903 | expld.phase = lang_first_phase_enum; |
6904 | ||
08da4cac | 6905 | /* Size up the common data. */ |
252b5132 RH |
6906 | lang_common (); |
6907 | ||
c4621b33 AM |
6908 | /* Remove unreferenced sections if asked to. */ |
6909 | lang_gc_sections (); | |
6910 | ||
bcaa7b3e L |
6911 | /* Update wild statements. */ |
6912 | update_wild_statements (statement_list.head); | |
6913 | ||
252b5132 | 6914 | /* Run through the contours of the script and attach input sections |
08da4cac | 6915 | to the correct output sections. */ |
e759c116 | 6916 | lang_statement_iteration++; |
1579bae1 | 6917 | map_input_to_output_sections (statement_list.head, NULL, NULL); |
252b5132 | 6918 | |
53d25da6 AM |
6919 | process_insert_statements (); |
6920 | ||
08da4cac | 6921 | /* Find any sections not attached explicitly and handle them. */ |
252b5132 RH |
6922 | lang_place_orphans (); |
6923 | ||
0e1862bb | 6924 | if (!bfd_link_relocatable (&link_info)) |
862120bd | 6925 | { |
57ceae94 AM |
6926 | asection *found; |
6927 | ||
6928 | /* Merge SEC_MERGE sections. This has to be done after GC of | |
6929 | sections, so that GCed sections are not merged, but before | |
6930 | assigning dynamic symbols, since removing whole input sections | |
6931 | is hard then. */ | |
f13a99db | 6932 | bfd_merge_sections (link_info.output_bfd, &link_info); |
57ceae94 | 6933 | |
862120bd | 6934 | /* Look for a text section and set the readonly attribute in it. */ |
f13a99db | 6935 | found = bfd_get_section_by_name (link_info.output_bfd, ".text"); |
862120bd | 6936 | |
1579bae1 | 6937 | if (found != NULL) |
862120bd AM |
6938 | { |
6939 | if (config.text_read_only) | |
6940 | found->flags |= SEC_READONLY; | |
6941 | else | |
6942 | found->flags &= ~SEC_READONLY; | |
6943 | } | |
6944 | } | |
6945 | ||
6946 | /* Do anything special before sizing sections. This is where ELF | |
6947 | and other back-ends size dynamic sections. */ | |
252b5132 RH |
6948 | ldemul_before_allocation (); |
6949 | ||
6950 | /* We must record the program headers before we try to fix the | |
6951 | section positions, since they will affect SIZEOF_HEADERS. */ | |
6952 | lang_record_phdrs (); | |
6953 | ||
b10a8ae0 | 6954 | /* Check relro sections. */ |
0e1862bb | 6955 | if (link_info.relro && !bfd_link_relocatable (&link_info)) |
b10a8ae0 L |
6956 | lang_find_relro_sections (); |
6957 | ||
b3327aad | 6958 | /* Size up the sections. */ |
28d5f677 | 6959 | lang_size_sections (NULL, ! RELAXATION_ENABLED); |
b3327aad | 6960 | |
252b5132 | 6961 | /* See if anything special should be done now we know how big |
eaeb0a9d | 6962 | everything is. This is where relaxation is done. */ |
252b5132 RH |
6963 | ldemul_after_allocation (); |
6964 | ||
6965 | /* Fix any .startof. or .sizeof. symbols. */ | |
6966 | lang_set_startof (); | |
6967 | ||
08da4cac KH |
6968 | /* Do all the assignments, now that we know the final resting places |
6969 | of all the symbols. */ | |
2f65ac72 | 6970 | lang_do_assignments (lang_final_phase_enum); |
252b5132 | 6971 | |
8ded5a0f AM |
6972 | ldemul_finish (); |
6973 | ||
975f8a9e AM |
6974 | /* Convert absolute symbols to section relative. */ |
6975 | ldexp_finalize_syms (); | |
6976 | ||
252b5132 | 6977 | /* Make sure that the section addresses make sense. */ |
662ef24b | 6978 | if (command_line.check_section_addresses) |
252b5132 | 6979 | lang_check_section_addresses (); |
5f992e62 | 6980 | |
0a618243 AB |
6981 | /* Check any required symbols are known. */ |
6982 | ldlang_check_require_defined_symbols (); | |
6983 | ||
750877ba | 6984 | lang_end (); |
252b5132 RH |
6985 | } |
6986 | ||
6987 | /* EXPORTED TO YACC */ | |
6988 | ||
6989 | void | |
1579bae1 AM |
6990 | lang_add_wild (struct wildcard_spec *filespec, |
6991 | struct wildcard_list *section_list, | |
6992 | bfd_boolean keep_sections) | |
252b5132 | 6993 | { |
b6bf44ba | 6994 | struct wildcard_list *curr, *next; |
d3ce72d0 | 6995 | lang_wild_statement_type *new_stmt; |
b6bf44ba AM |
6996 | |
6997 | /* Reverse the list as the parser puts it back to front. */ | |
6998 | for (curr = section_list, section_list = NULL; | |
6999 | curr != NULL; | |
7000 | section_list = curr, curr = next) | |
7001 | { | |
7002 | if (curr->spec.name != NULL && strcmp (curr->spec.name, "COMMON") == 0) | |
b34976b6 | 7003 | placed_commons = TRUE; |
252b5132 | 7004 | |
b6bf44ba AM |
7005 | next = curr->next; |
7006 | curr->next = section_list; | |
7007 | } | |
7008 | ||
7009 | if (filespec != NULL && filespec->name != NULL) | |
252b5132 | 7010 | { |
b6bf44ba AM |
7011 | if (strcmp (filespec->name, "*") == 0) |
7012 | filespec->name = NULL; | |
7013 | else if (! wildcardp (filespec->name)) | |
b34976b6 | 7014 | lang_has_input_file = TRUE; |
252b5132 | 7015 | } |
b6bf44ba | 7016 | |
d3ce72d0 NC |
7017 | new_stmt = new_stat (lang_wild_statement, stat_ptr); |
7018 | new_stmt->filename = NULL; | |
7019 | new_stmt->filenames_sorted = FALSE; | |
ae17ab41 | 7020 | new_stmt->section_flag_list = NULL; |
b6bf44ba | 7021 | if (filespec != NULL) |
252b5132 | 7022 | { |
d3ce72d0 NC |
7023 | new_stmt->filename = filespec->name; |
7024 | new_stmt->filenames_sorted = filespec->sorted == by_name; | |
ae17ab41 | 7025 | new_stmt->section_flag_list = filespec->section_flag_list; |
252b5132 | 7026 | } |
d3ce72d0 NC |
7027 | new_stmt->section_list = section_list; |
7028 | new_stmt->keep_sections = keep_sections; | |
7029 | lang_list_init (&new_stmt->children); | |
7030 | analyze_walk_wild_section_handler (new_stmt); | |
252b5132 RH |
7031 | } |
7032 | ||
7033 | void | |
ba916c8a MM |
7034 | lang_section_start (const char *name, etree_type *address, |
7035 | const segment_type *segment) | |
252b5132 | 7036 | { |
d1778b88 | 7037 | lang_address_statement_type *ad; |
252b5132 | 7038 | |
d1778b88 | 7039 | ad = new_stat (lang_address_statement, stat_ptr); |
252b5132 RH |
7040 | ad->section_name = name; |
7041 | ad->address = address; | |
ba916c8a | 7042 | ad->segment = segment; |
252b5132 RH |
7043 | } |
7044 | ||
7045 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called | |
7046 | because of a -e argument on the command line, or zero if this is | |
7047 | called by ENTRY in a linker script. Command line arguments take | |
7048 | precedence. */ | |
7049 | ||
7050 | void | |
1579bae1 | 7051 | lang_add_entry (const char *name, bfd_boolean cmdline) |
252b5132 | 7052 | { |
e3e942e9 | 7053 | if (entry_symbol.name == NULL |
252b5132 RH |
7054 | || cmdline |
7055 | || ! entry_from_cmdline) | |
7056 | { | |
e3e942e9 | 7057 | entry_symbol.name = name; |
252b5132 RH |
7058 | entry_from_cmdline = cmdline; |
7059 | } | |
7060 | } | |
7061 | ||
a359509e ZW |
7062 | /* Set the default start symbol to NAME. .em files should use this, |
7063 | not lang_add_entry, to override the use of "start" if neither the | |
7064 | linker script nor the command line specifies an entry point. NAME | |
7065 | must be permanently allocated. */ | |
7066 | void | |
7067 | lang_default_entry (const char *name) | |
7068 | { | |
7069 | entry_symbol_default = name; | |
7070 | } | |
7071 | ||
252b5132 | 7072 | void |
1579bae1 | 7073 | lang_add_target (const char *name) |
252b5132 | 7074 | { |
d3ce72d0 | 7075 | lang_target_statement_type *new_stmt; |
252b5132 | 7076 | |
d3ce72d0 NC |
7077 | new_stmt = new_stat (lang_target_statement, stat_ptr); |
7078 | new_stmt->target = name; | |
252b5132 RH |
7079 | } |
7080 | ||
7081 | void | |
1579bae1 | 7082 | lang_add_map (const char *name) |
252b5132 RH |
7083 | { |
7084 | while (*name) | |
7085 | { | |
7086 | switch (*name) | |
7087 | { | |
08da4cac | 7088 | case 'F': |
b34976b6 | 7089 | map_option_f = TRUE; |
252b5132 RH |
7090 | break; |
7091 | } | |
7092 | name++; | |
7093 | } | |
7094 | } | |
7095 | ||
7096 | void | |
1579bae1 | 7097 | lang_add_fill (fill_type *fill) |
252b5132 | 7098 | { |
d3ce72d0 | 7099 | lang_fill_statement_type *new_stmt; |
252b5132 | 7100 | |
d3ce72d0 NC |
7101 | new_stmt = new_stat (lang_fill_statement, stat_ptr); |
7102 | new_stmt->fill = fill; | |
252b5132 RH |
7103 | } |
7104 | ||
7105 | void | |
1579bae1 | 7106 | lang_add_data (int type, union etree_union *exp) |
252b5132 | 7107 | { |
d3ce72d0 | 7108 | lang_data_statement_type *new_stmt; |
252b5132 | 7109 | |
d3ce72d0 NC |
7110 | new_stmt = new_stat (lang_data_statement, stat_ptr); |
7111 | new_stmt->exp = exp; | |
7112 | new_stmt->type = type; | |
252b5132 RH |
7113 | } |
7114 | ||
7115 | /* Create a new reloc statement. RELOC is the BFD relocation type to | |
7116 | generate. HOWTO is the corresponding howto structure (we could | |
7117 | look this up, but the caller has already done so). SECTION is the | |
7118 | section to generate a reloc against, or NAME is the name of the | |
7119 | symbol to generate a reloc against. Exactly one of SECTION and | |
7120 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
7121 | ||
7122 | void | |
1579bae1 AM |
7123 | lang_add_reloc (bfd_reloc_code_real_type reloc, |
7124 | reloc_howto_type *howto, | |
7125 | asection *section, | |
7126 | const char *name, | |
7127 | union etree_union *addend) | |
252b5132 RH |
7128 | { |
7129 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
5f992e62 | 7130 | |
252b5132 RH |
7131 | p->reloc = reloc; |
7132 | p->howto = howto; | |
7133 | p->section = section; | |
7134 | p->name = name; | |
7135 | p->addend_exp = addend; | |
7136 | ||
7137 | p->addend_value = 0; | |
7138 | p->output_section = NULL; | |
7fabd029 | 7139 | p->output_offset = 0; |
252b5132 RH |
7140 | } |
7141 | ||
7142 | lang_assignment_statement_type * | |
1579bae1 | 7143 | lang_add_assignment (etree_type *exp) |
252b5132 | 7144 | { |
d3ce72d0 | 7145 | lang_assignment_statement_type *new_stmt; |
252b5132 | 7146 | |
d3ce72d0 NC |
7147 | new_stmt = new_stat (lang_assignment_statement, stat_ptr); |
7148 | new_stmt->exp = exp; | |
7149 | return new_stmt; | |
252b5132 RH |
7150 | } |
7151 | ||
7152 | void | |
1579bae1 | 7153 | lang_add_attribute (enum statement_enum attribute) |
252b5132 | 7154 | { |
bd4d42c1 | 7155 | new_statement (attribute, sizeof (lang_statement_header_type), stat_ptr); |
252b5132 RH |
7156 | } |
7157 | ||
7158 | void | |
1579bae1 | 7159 | lang_startup (const char *name) |
252b5132 | 7160 | { |
1e915804 | 7161 | if (first_file->filename != NULL) |
252b5132 | 7162 | { |
4520f868 | 7163 | einfo (_("%P%F: multiple STARTUP files\n")); |
252b5132 RH |
7164 | } |
7165 | first_file->filename = name; | |
7166 | first_file->local_sym_name = name; | |
66be1055 | 7167 | first_file->flags.real = TRUE; |
252b5132 RH |
7168 | } |
7169 | ||
7170 | void | |
1579bae1 | 7171 | lang_float (bfd_boolean maybe) |
252b5132 RH |
7172 | { |
7173 | lang_float_flag = maybe; | |
7174 | } | |
7175 | ||
ee3cc2e2 RS |
7176 | |
7177 | /* Work out the load- and run-time regions from a script statement, and | |
7178 | store them in *LMA_REGION and *REGION respectively. | |
7179 | ||
a747ee4d NC |
7180 | MEMSPEC is the name of the run-time region, or the value of |
7181 | DEFAULT_MEMORY_REGION if the statement didn't specify one. | |
7182 | LMA_MEMSPEC is the name of the load-time region, or null if the | |
7183 | statement didn't specify one.HAVE_LMA_P is TRUE if the statement | |
7184 | had an explicit load address. | |
ee3cc2e2 RS |
7185 | |
7186 | It is an error to specify both a load region and a load address. */ | |
7187 | ||
7188 | static void | |
6bdafbeb NC |
7189 | lang_get_regions (lang_memory_region_type **region, |
7190 | lang_memory_region_type **lma_region, | |
1579bae1 AM |
7191 | const char *memspec, |
7192 | const char *lma_memspec, | |
6bdafbeb NC |
7193 | bfd_boolean have_lma, |
7194 | bfd_boolean have_vma) | |
ee3cc2e2 | 7195 | { |
a747ee4d | 7196 | *lma_region = lang_memory_region_lookup (lma_memspec, FALSE); |
ee3cc2e2 | 7197 | |
6feb9908 AM |
7198 | /* If no runtime region or VMA has been specified, but the load region |
7199 | has been specified, then use the load region for the runtime region | |
7200 | as well. */ | |
6bdafbeb NC |
7201 | if (lma_memspec != NULL |
7202 | && ! have_vma | |
7203 | && strcmp (memspec, DEFAULT_MEMORY_REGION) == 0) | |
ee3cc2e2 RS |
7204 | *region = *lma_region; |
7205 | else | |
a747ee4d | 7206 | *region = lang_memory_region_lookup (memspec, FALSE); |
ee3cc2e2 | 7207 | |
6bdafbeb | 7208 | if (have_lma && lma_memspec != 0) |
dab69f68 AM |
7209 | einfo (_("%X%P:%S: section has both a load address and a load region\n"), |
7210 | NULL); | |
ee3cc2e2 RS |
7211 | } |
7212 | ||
252b5132 | 7213 | void |
6bdafbeb NC |
7214 | lang_leave_output_section_statement (fill_type *fill, const char *memspec, |
7215 | lang_output_section_phdr_list *phdrs, | |
7216 | const char *lma_memspec) | |
252b5132 | 7217 | { |
ee3cc2e2 RS |
7218 | lang_get_regions (¤t_section->region, |
7219 | ¤t_section->lma_region, | |
7220 | memspec, lma_memspec, | |
6bdafbeb NC |
7221 | current_section->load_base != NULL, |
7222 | current_section->addr_tree != NULL); | |
113e6845 | 7223 | |
83e7bd17 | 7224 | /* If this section has no load region or base, but uses the same |
113e6845 NS |
7225 | region as the previous section, then propagate the previous |
7226 | section's load region. */ | |
7227 | ||
83e7bd17 AM |
7228 | if (current_section->lma_region == NULL |
7229 | && current_section->load_base == NULL | |
7230 | && current_section->addr_tree == NULL | |
113e6845 NS |
7231 | && current_section->region == current_section->prev->region) |
7232 | current_section->lma_region = current_section->prev->lma_region; | |
1e0061d2 | 7233 | |
252b5132 | 7234 | current_section->fill = fill; |
252b5132 | 7235 | current_section->phdrs = phdrs; |
bde18da4 | 7236 | pop_stat_ptr (); |
252b5132 RH |
7237 | } |
7238 | ||
252b5132 | 7239 | void |
1579bae1 AM |
7240 | lang_statement_append (lang_statement_list_type *list, |
7241 | lang_statement_union_type *element, | |
7242 | lang_statement_union_type **field) | |
252b5132 RH |
7243 | { |
7244 | *(list->tail) = element; | |
7245 | list->tail = field; | |
7246 | } | |
7247 | ||
7248 | /* Set the output format type. -oformat overrides scripts. */ | |
7249 | ||
7250 | void | |
1579bae1 AM |
7251 | lang_add_output_format (const char *format, |
7252 | const char *big, | |
7253 | const char *little, | |
7254 | int from_script) | |
252b5132 RH |
7255 | { |
7256 | if (output_target == NULL || !from_script) | |
7257 | { | |
7258 | if (command_line.endian == ENDIAN_BIG | |
7259 | && big != NULL) | |
7260 | format = big; | |
7261 | else if (command_line.endian == ENDIAN_LITTLE | |
7262 | && little != NULL) | |
7263 | format = little; | |
7264 | ||
7265 | output_target = format; | |
7266 | } | |
7267 | } | |
7268 | ||
53d25da6 AM |
7269 | void |
7270 | lang_add_insert (const char *where, int is_before) | |
7271 | { | |
d3ce72d0 | 7272 | lang_insert_statement_type *new_stmt; |
53d25da6 | 7273 | |
d3ce72d0 NC |
7274 | new_stmt = new_stat (lang_insert_statement, stat_ptr); |
7275 | new_stmt->where = where; | |
7276 | new_stmt->is_before = is_before; | |
53d25da6 AM |
7277 | saved_script_handle = previous_script_handle; |
7278 | } | |
7279 | ||
252b5132 RH |
7280 | /* Enter a group. This creates a new lang_group_statement, and sets |
7281 | stat_ptr to build new statements within the group. */ | |
7282 | ||
7283 | void | |
1579bae1 | 7284 | lang_enter_group (void) |
252b5132 RH |
7285 | { |
7286 | lang_group_statement_type *g; | |
7287 | ||
7288 | g = new_stat (lang_group_statement, stat_ptr); | |
7289 | lang_list_init (&g->children); | |
bde18da4 | 7290 | push_stat_ptr (&g->children); |
252b5132 RH |
7291 | } |
7292 | ||
7293 | /* Leave a group. This just resets stat_ptr to start writing to the | |
7294 | regular list of statements again. Note that this will not work if | |
7295 | groups can occur inside anything else which can adjust stat_ptr, | |
7296 | but currently they can't. */ | |
7297 | ||
7298 | void | |
1579bae1 | 7299 | lang_leave_group (void) |
252b5132 | 7300 | { |
bde18da4 | 7301 | pop_stat_ptr (); |
252b5132 RH |
7302 | } |
7303 | ||
7304 | /* Add a new program header. This is called for each entry in a PHDRS | |
7305 | command in a linker script. */ | |
7306 | ||
7307 | void | |
1579bae1 AM |
7308 | lang_new_phdr (const char *name, |
7309 | etree_type *type, | |
7310 | bfd_boolean filehdr, | |
7311 | bfd_boolean phdrs, | |
7312 | etree_type *at, | |
7313 | etree_type *flags) | |
252b5132 RH |
7314 | { |
7315 | struct lang_phdr *n, **pp; | |
5c1a3f0f | 7316 | bfd_boolean hdrs; |
252b5132 | 7317 | |
1e9cc1c2 | 7318 | n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr)); |
252b5132 RH |
7319 | n->next = NULL; |
7320 | n->name = name; | |
e9ee469a | 7321 | n->type = exp_get_value_int (type, 0, "program header type"); |
252b5132 RH |
7322 | n->filehdr = filehdr; |
7323 | n->phdrs = phdrs; | |
7324 | n->at = at; | |
7325 | n->flags = flags; | |
1e0061d2 | 7326 | |
5c1a3f0f | 7327 | hdrs = n->type == 1 && (phdrs || filehdr); |
252b5132 RH |
7328 | |
7329 | for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next) | |
4100cea3 AM |
7330 | if (hdrs |
7331 | && (*pp)->type == 1 | |
7332 | && !((*pp)->filehdr || (*pp)->phdrs)) | |
5c1a3f0f | 7333 | { |
dab69f68 AM |
7334 | einfo (_("%X%P:%S: PHDRS and FILEHDR are not supported" |
7335 | " when prior PT_LOAD headers lack them\n"), NULL); | |
5c1a3f0f NS |
7336 | hdrs = FALSE; |
7337 | } | |
7338 | ||
252b5132 RH |
7339 | *pp = n; |
7340 | } | |
7341 | ||
7342 | /* Record the program header information in the output BFD. FIXME: We | |
7343 | should not be calling an ELF specific function here. */ | |
7344 | ||
7345 | static void | |
1579bae1 | 7346 | lang_record_phdrs (void) |
252b5132 RH |
7347 | { |
7348 | unsigned int alc; | |
7349 | asection **secs; | |
6bdafbeb | 7350 | lang_output_section_phdr_list *last; |
252b5132 | 7351 | struct lang_phdr *l; |
afd7a018 | 7352 | lang_output_section_statement_type *os; |
252b5132 RH |
7353 | |
7354 | alc = 10; | |
1e9cc1c2 | 7355 | secs = (asection **) xmalloc (alc * sizeof (asection *)); |
252b5132 | 7356 | last = NULL; |
591a748a | 7357 | |
252b5132 RH |
7358 | for (l = lang_phdr_list; l != NULL; l = l->next) |
7359 | { | |
7360 | unsigned int c; | |
7361 | flagword flags; | |
7362 | bfd_vma at; | |
7363 | ||
7364 | c = 0; | |
afd7a018 AM |
7365 | for (os = &lang_output_section_statement.head->output_section_statement; |
7366 | os != NULL; | |
7367 | os = os->next) | |
252b5132 | 7368 | { |
6bdafbeb | 7369 | lang_output_section_phdr_list *pl; |
252b5132 | 7370 | |
66c103b7 | 7371 | if (os->constraint < 0) |
0841712e | 7372 | continue; |
252b5132 RH |
7373 | |
7374 | pl = os->phdrs; | |
7375 | if (pl != NULL) | |
7376 | last = pl; | |
7377 | else | |
7378 | { | |
7379 | if (os->sectype == noload_section | |
7380 | || os->bfd_section == NULL | |
7381 | || (os->bfd_section->flags & SEC_ALLOC) == 0) | |
7382 | continue; | |
591a748a | 7383 | |
7512c397 AM |
7384 | /* Don't add orphans to PT_INTERP header. */ |
7385 | if (l->type == 3) | |
7386 | continue; | |
7387 | ||
e9442572 | 7388 | if (last == NULL) |
591a748a NC |
7389 | { |
7390 | lang_output_section_statement_type * tmp_os; | |
7391 | ||
7392 | /* If we have not run across a section with a program | |
7393 | header assigned to it yet, then scan forwards to find | |
7394 | one. This prevents inconsistencies in the linker's | |
7395 | behaviour when a script has specified just a single | |
7396 | header and there are sections in that script which are | |
7397 | not assigned to it, and which occur before the first | |
7398 | use of that header. See here for more details: | |
7399 | http://sourceware.org/ml/binutils/2007-02/msg00291.html */ | |
7400 | for (tmp_os = os; tmp_os; tmp_os = tmp_os->next) | |
7401 | if (tmp_os->phdrs) | |
e9442572 AM |
7402 | { |
7403 | last = tmp_os->phdrs; | |
7404 | break; | |
7405 | } | |
7406 | if (last == NULL) | |
7407 | einfo (_("%F%P: no sections assigned to phdrs\n")); | |
591a748a | 7408 | } |
e9442572 | 7409 | pl = last; |
252b5132 RH |
7410 | } |
7411 | ||
7412 | if (os->bfd_section == NULL) | |
7413 | continue; | |
7414 | ||
7415 | for (; pl != NULL; pl = pl->next) | |
7416 | { | |
7417 | if (strcmp (pl->name, l->name) == 0) | |
7418 | { | |
7419 | if (c >= alc) | |
7420 | { | |
7421 | alc *= 2; | |
1e9cc1c2 | 7422 | secs = (asection **) xrealloc (secs, |
4724d37e | 7423 | alc * sizeof (asection *)); |
252b5132 RH |
7424 | } |
7425 | secs[c] = os->bfd_section; | |
7426 | ++c; | |
b34976b6 | 7427 | pl->used = TRUE; |
252b5132 RH |
7428 | } |
7429 | } | |
7430 | } | |
7431 | ||
7432 | if (l->flags == NULL) | |
7433 | flags = 0; | |
7434 | else | |
e9ee469a | 7435 | flags = exp_get_vma (l->flags, 0, "phdr flags"); |
252b5132 RH |
7436 | |
7437 | if (l->at == NULL) | |
7438 | at = 0; | |
7439 | else | |
e9ee469a | 7440 | at = exp_get_vma (l->at, 0, "phdr load address"); |
252b5132 | 7441 | |
f13a99db | 7442 | if (! bfd_record_phdr (link_info.output_bfd, l->type, |
d1778b88 | 7443 | l->flags != NULL, flags, l->at != NULL, |
252b5132 RH |
7444 | at, l->filehdr, l->phdrs, c, secs)) |
7445 | einfo (_("%F%P: bfd_record_phdr failed: %E\n")); | |
7446 | } | |
7447 | ||
7448 | free (secs); | |
7449 | ||
7450 | /* Make sure all the phdr assignments succeeded. */ | |
afd7a018 AM |
7451 | for (os = &lang_output_section_statement.head->output_section_statement; |
7452 | os != NULL; | |
7453 | os = os->next) | |
252b5132 | 7454 | { |
6bdafbeb | 7455 | lang_output_section_phdr_list *pl; |
252b5132 | 7456 | |
66c103b7 | 7457 | if (os->constraint < 0 |
afd7a018 | 7458 | || os->bfd_section == NULL) |
252b5132 RH |
7459 | continue; |
7460 | ||
afd7a018 | 7461 | for (pl = os->phdrs; |
252b5132 RH |
7462 | pl != NULL; |
7463 | pl = pl->next) | |
7464 | if (! pl->used && strcmp (pl->name, "NONE") != 0) | |
7465 | einfo (_("%X%P: section `%s' assigned to non-existent phdr `%s'\n"), | |
afd7a018 | 7466 | os->name, pl->name); |
252b5132 RH |
7467 | } |
7468 | } | |
7469 | ||
7470 | /* Record a list of sections which may not be cross referenced. */ | |
7471 | ||
7472 | void | |
6bdafbeb | 7473 | lang_add_nocrossref (lang_nocrossref_type *l) |
252b5132 RH |
7474 | { |
7475 | struct lang_nocrossrefs *n; | |
7476 | ||
1e9cc1c2 | 7477 | n = (struct lang_nocrossrefs *) xmalloc (sizeof *n); |
252b5132 RH |
7478 | n->next = nocrossref_list; |
7479 | n->list = l; | |
7480 | nocrossref_list = n; | |
7481 | ||
7482 | /* Set notice_all so that we get informed about all symbols. */ | |
b34976b6 | 7483 | link_info.notice_all = TRUE; |
252b5132 RH |
7484 | } |
7485 | \f | |
7486 | /* Overlay handling. We handle overlays with some static variables. */ | |
7487 | ||
7488 | /* The overlay virtual address. */ | |
7489 | static etree_type *overlay_vma; | |
7e7d5768 AM |
7490 | /* And subsection alignment. */ |
7491 | static etree_type *overlay_subalign; | |
252b5132 | 7492 | |
252b5132 RH |
7493 | /* An expression for the maximum section size seen so far. */ |
7494 | static etree_type *overlay_max; | |
7495 | ||
7496 | /* A list of all the sections in this overlay. */ | |
7497 | ||
89cdebba | 7498 | struct overlay_list { |
252b5132 RH |
7499 | struct overlay_list *next; |
7500 | lang_output_section_statement_type *os; | |
7501 | }; | |
7502 | ||
7503 | static struct overlay_list *overlay_list; | |
7504 | ||
7505 | /* Start handling an overlay. */ | |
7506 | ||
7507 | void | |
7e7d5768 | 7508 | lang_enter_overlay (etree_type *vma_expr, etree_type *subalign) |
252b5132 RH |
7509 | { |
7510 | /* The grammar should prevent nested overlays from occurring. */ | |
7e7d5768 AM |
7511 | ASSERT (overlay_vma == NULL |
7512 | && overlay_subalign == NULL | |
7513 | && overlay_max == NULL); | |
252b5132 RH |
7514 | |
7515 | overlay_vma = vma_expr; | |
7e7d5768 | 7516 | overlay_subalign = subalign; |
252b5132 RH |
7517 | } |
7518 | ||
7519 | /* Start a section in an overlay. We handle this by calling | |
9f88b410 RS |
7520 | lang_enter_output_section_statement with the correct VMA. |
7521 | lang_leave_overlay sets up the LMA and memory regions. */ | |
252b5132 RH |
7522 | |
7523 | void | |
1579bae1 | 7524 | lang_enter_overlay_section (const char *name) |
252b5132 RH |
7525 | { |
7526 | struct overlay_list *n; | |
7527 | etree_type *size; | |
7528 | ||
152d792f | 7529 | lang_enter_output_section_statement (name, overlay_vma, overlay_section, |
1eec346e | 7530 | 0, overlay_subalign, 0, 0, 0); |
252b5132 | 7531 | |
9f88b410 | 7532 | /* If this is the first section, then base the VMA of future |
252b5132 RH |
7533 | sections on this one. This will work correctly even if `.' is |
7534 | used in the addresses. */ | |
7535 | if (overlay_list == NULL) | |
9f88b410 | 7536 | overlay_vma = exp_nameop (ADDR, name); |
252b5132 RH |
7537 | |
7538 | /* Remember the section. */ | |
1e9cc1c2 | 7539 | n = (struct overlay_list *) xmalloc (sizeof *n); |
252b5132 RH |
7540 | n->os = current_section; |
7541 | n->next = overlay_list; | |
7542 | overlay_list = n; | |
7543 | ||
7544 | size = exp_nameop (SIZEOF, name); | |
7545 | ||
252b5132 RH |
7546 | /* Arrange to work out the maximum section end address. */ |
7547 | if (overlay_max == NULL) | |
7548 | overlay_max = size; | |
7549 | else | |
7550 | overlay_max = exp_binop (MAX_K, overlay_max, size); | |
7551 | } | |
7552 | ||
7553 | /* Finish a section in an overlay. There isn't any special to do | |
7554 | here. */ | |
7555 | ||
7556 | void | |
1579bae1 | 7557 | lang_leave_overlay_section (fill_type *fill, |
6bdafbeb | 7558 | lang_output_section_phdr_list *phdrs) |
252b5132 RH |
7559 | { |
7560 | const char *name; | |
7561 | char *clean, *s2; | |
7562 | const char *s1; | |
7563 | char *buf; | |
7564 | ||
7565 | name = current_section->name; | |
7566 | ||
a747ee4d NC |
7567 | /* For now, assume that DEFAULT_MEMORY_REGION is the run-time memory |
7568 | region and that no load-time region has been specified. It doesn't | |
7569 | really matter what we say here, since lang_leave_overlay will | |
7570 | override it. */ | |
7571 | lang_leave_output_section_statement (fill, DEFAULT_MEMORY_REGION, phdrs, 0); | |
252b5132 RH |
7572 | |
7573 | /* Define the magic symbols. */ | |
7574 | ||
1e9cc1c2 | 7575 | clean = (char *) xmalloc (strlen (name) + 1); |
252b5132 RH |
7576 | s2 = clean; |
7577 | for (s1 = name; *s1 != '\0'; s1++) | |
3882b010 | 7578 | if (ISALNUM (*s1) || *s1 == '_') |
252b5132 RH |
7579 | *s2++ = *s1; |
7580 | *s2 = '\0'; | |
7581 | ||
1e9cc1c2 | 7582 | buf = (char *) xmalloc (strlen (clean) + sizeof "__load_start_"); |
252b5132 | 7583 | sprintf (buf, "__load_start_%s", clean); |
34711ca3 AM |
7584 | lang_add_assignment (exp_provide (buf, |
7585 | exp_nameop (LOADADDR, name), | |
7586 | FALSE)); | |
252b5132 | 7587 | |
1e9cc1c2 | 7588 | buf = (char *) xmalloc (strlen (clean) + sizeof "__load_stop_"); |
252b5132 | 7589 | sprintf (buf, "__load_stop_%s", clean); |
34711ca3 AM |
7590 | lang_add_assignment (exp_provide (buf, |
7591 | exp_binop ('+', | |
7592 | exp_nameop (LOADADDR, name), | |
7593 | exp_nameop (SIZEOF, name)), | |
7594 | FALSE)); | |
252b5132 RH |
7595 | |
7596 | free (clean); | |
7597 | } | |
7598 | ||
7599 | /* Finish an overlay. If there are any overlay wide settings, this | |
7600 | looks through all the sections in the overlay and sets them. */ | |
7601 | ||
7602 | void | |
1579bae1 AM |
7603 | lang_leave_overlay (etree_type *lma_expr, |
7604 | int nocrossrefs, | |
7605 | fill_type *fill, | |
7606 | const char *memspec, | |
6bdafbeb | 7607 | lang_output_section_phdr_list *phdrs, |
1579bae1 | 7608 | const char *lma_memspec) |
252b5132 RH |
7609 | { |
7610 | lang_memory_region_type *region; | |
562d3460 | 7611 | lang_memory_region_type *lma_region; |
252b5132 | 7612 | struct overlay_list *l; |
6bdafbeb | 7613 | lang_nocrossref_type *nocrossref; |
252b5132 | 7614 | |
ee3cc2e2 RS |
7615 | lang_get_regions (®ion, &lma_region, |
7616 | memspec, lma_memspec, | |
6bdafbeb | 7617 | lma_expr != NULL, FALSE); |
562d3460 | 7618 | |
252b5132 RH |
7619 | nocrossref = NULL; |
7620 | ||
9f88b410 RS |
7621 | /* After setting the size of the last section, set '.' to end of the |
7622 | overlay region. */ | |
7623 | if (overlay_list != NULL) | |
6d8bf25d AM |
7624 | { |
7625 | overlay_list->os->update_dot = 1; | |
7626 | overlay_list->os->update_dot_tree | |
eb8476a6 | 7627 | = exp_assign (".", exp_binop ('+', overlay_vma, overlay_max), FALSE); |
6d8bf25d | 7628 | } |
9f88b410 | 7629 | |
252b5132 RH |
7630 | l = overlay_list; |
7631 | while (l != NULL) | |
7632 | { | |
7633 | struct overlay_list *next; | |
7634 | ||
1579bae1 | 7635 | if (fill != NULL && l->os->fill == NULL) |
252b5132 | 7636 | l->os->fill = fill; |
1545243b | 7637 | |
9f88b410 RS |
7638 | l->os->region = region; |
7639 | l->os->lma_region = lma_region; | |
7640 | ||
7641 | /* The first section has the load address specified in the | |
7642 | OVERLAY statement. The rest are worked out from that. | |
7643 | The base address is not needed (and should be null) if | |
7644 | an LMA region was specified. */ | |
7645 | if (l->next == 0) | |
152d792f AM |
7646 | { |
7647 | l->os->load_base = lma_expr; | |
7648 | l->os->sectype = normal_section; | |
7649 | } | |
252b5132 RH |
7650 | if (phdrs != NULL && l->os->phdrs == NULL) |
7651 | l->os->phdrs = phdrs; | |
7652 | ||
9f88b410 | 7653 | if (nocrossrefs) |
252b5132 | 7654 | { |
6bdafbeb | 7655 | lang_nocrossref_type *nc; |
252b5132 | 7656 | |
1e9cc1c2 | 7657 | nc = (lang_nocrossref_type *) xmalloc (sizeof *nc); |
252b5132 RH |
7658 | nc->name = l->os->name; |
7659 | nc->next = nocrossref; | |
7660 | nocrossref = nc; | |
7661 | } | |
7662 | ||
7663 | next = l->next; | |
7664 | free (l); | |
7665 | l = next; | |
7666 | } | |
7667 | ||
7668 | if (nocrossref != NULL) | |
7669 | lang_add_nocrossref (nocrossref); | |
7670 | ||
252b5132 | 7671 | overlay_vma = NULL; |
252b5132 RH |
7672 | overlay_list = NULL; |
7673 | overlay_max = NULL; | |
7674 | } | |
7675 | \f | |
7676 | /* Version handling. This is only useful for ELF. */ | |
7677 | ||
108ba305 JJ |
7678 | /* If PREV is NULL, return first version pattern matching particular symbol. |
7679 | If PREV is non-NULL, return first version pattern matching particular | |
7680 | symbol after PREV (previously returned by lang_vers_match). */ | |
252b5132 | 7681 | |
108ba305 JJ |
7682 | static struct bfd_elf_version_expr * |
7683 | lang_vers_match (struct bfd_elf_version_expr_head *head, | |
7684 | struct bfd_elf_version_expr *prev, | |
7685 | const char *sym) | |
252b5132 | 7686 | { |
93252b1c | 7687 | const char *c_sym; |
108ba305 JJ |
7688 | const char *cxx_sym = sym; |
7689 | const char *java_sym = sym; | |
7690 | struct bfd_elf_version_expr *expr = NULL; | |
93252b1c MF |
7691 | enum demangling_styles curr_style; |
7692 | ||
7693 | curr_style = CURRENT_DEMANGLING_STYLE; | |
7694 | cplus_demangle_set_style (no_demangling); | |
7695 | c_sym = bfd_demangle (link_info.output_bfd, sym, DMGL_NO_OPTS); | |
7696 | if (!c_sym) | |
7697 | c_sym = sym; | |
7698 | cplus_demangle_set_style (curr_style); | |
252b5132 | 7699 | |
108ba305 | 7700 | if (head->mask & BFD_ELF_VERSION_CXX_TYPE) |
252b5132 | 7701 | { |
93252b1c MF |
7702 | cxx_sym = bfd_demangle (link_info.output_bfd, sym, |
7703 | DMGL_PARAMS | DMGL_ANSI); | |
108ba305 JJ |
7704 | if (!cxx_sym) |
7705 | cxx_sym = sym; | |
252b5132 | 7706 | } |
df816215 | 7707 | if (head->mask & BFD_ELF_VERSION_JAVA_TYPE) |
252b5132 | 7708 | { |
93252b1c | 7709 | java_sym = bfd_demangle (link_info.output_bfd, sym, DMGL_JAVA); |
108ba305 JJ |
7710 | if (!java_sym) |
7711 | java_sym = sym; | |
252b5132 RH |
7712 | } |
7713 | ||
ae5a3597 | 7714 | if (head->htab && (prev == NULL || prev->literal)) |
252b5132 | 7715 | { |
108ba305 JJ |
7716 | struct bfd_elf_version_expr e; |
7717 | ||
7718 | switch (prev ? prev->mask : 0) | |
7719 | { | |
967928e9 AM |
7720 | case 0: |
7721 | if (head->mask & BFD_ELF_VERSION_C_TYPE) | |
7722 | { | |
93252b1c | 7723 | e.pattern = c_sym; |
1e9cc1c2 | 7724 | expr = (struct bfd_elf_version_expr *) |
4724d37e | 7725 | htab_find ((htab_t) head->htab, &e); |
93252b1c | 7726 | while (expr && strcmp (expr->pattern, c_sym) == 0) |
967928e9 AM |
7727 | if (expr->mask == BFD_ELF_VERSION_C_TYPE) |
7728 | goto out_ret; | |
7729 | else | |
7730 | expr = expr->next; | |
7731 | } | |
7732 | /* Fallthrough */ | |
7733 | case BFD_ELF_VERSION_C_TYPE: | |
7734 | if (head->mask & BFD_ELF_VERSION_CXX_TYPE) | |
7735 | { | |
ae5a3597 | 7736 | e.pattern = cxx_sym; |
1e9cc1c2 | 7737 | expr = (struct bfd_elf_version_expr *) |
4724d37e | 7738 | htab_find ((htab_t) head->htab, &e); |
ae5a3597 | 7739 | while (expr && strcmp (expr->pattern, cxx_sym) == 0) |
967928e9 AM |
7740 | if (expr->mask == BFD_ELF_VERSION_CXX_TYPE) |
7741 | goto out_ret; | |
7742 | else | |
7743 | expr = expr->next; | |
7744 | } | |
7745 | /* Fallthrough */ | |
7746 | case BFD_ELF_VERSION_CXX_TYPE: | |
7747 | if (head->mask & BFD_ELF_VERSION_JAVA_TYPE) | |
7748 | { | |
ae5a3597 | 7749 | e.pattern = java_sym; |
1e9cc1c2 | 7750 | expr = (struct bfd_elf_version_expr *) |
4724d37e | 7751 | htab_find ((htab_t) head->htab, &e); |
ae5a3597 | 7752 | while (expr && strcmp (expr->pattern, java_sym) == 0) |
967928e9 AM |
7753 | if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE) |
7754 | goto out_ret; | |
7755 | else | |
7756 | expr = expr->next; | |
7757 | } | |
7758 | /* Fallthrough */ | |
7759 | default: | |
7760 | break; | |
108ba305 | 7761 | } |
252b5132 | 7762 | } |
108ba305 JJ |
7763 | |
7764 | /* Finally, try the wildcards. */ | |
ae5a3597 | 7765 | if (prev == NULL || prev->literal) |
108ba305 | 7766 | expr = head->remaining; |
252b5132 | 7767 | else |
108ba305 | 7768 | expr = prev->next; |
86043bbb | 7769 | for (; expr; expr = expr->next) |
252b5132 | 7770 | { |
108ba305 JJ |
7771 | const char *s; |
7772 | ||
86043bbb MM |
7773 | if (!expr->pattern) |
7774 | continue; | |
7775 | ||
108ba305 JJ |
7776 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') |
7777 | break; | |
7778 | ||
7779 | if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE) | |
7780 | s = java_sym; | |
7781 | else if (expr->mask == BFD_ELF_VERSION_CXX_TYPE) | |
7782 | s = cxx_sym; | |
7783 | else | |
93252b1c | 7784 | s = c_sym; |
5e35cbc2 | 7785 | if (fnmatch (expr->pattern, s, 0) == 0) |
108ba305 | 7786 | break; |
252b5132 RH |
7787 | } |
7788 | ||
967928e9 | 7789 | out_ret: |
93252b1c MF |
7790 | if (c_sym != sym) |
7791 | free ((char *) c_sym); | |
108ba305 JJ |
7792 | if (cxx_sym != sym) |
7793 | free ((char *) cxx_sym); | |
7794 | if (java_sym != sym) | |
7795 | free ((char *) java_sym); | |
7796 | return expr; | |
252b5132 RH |
7797 | } |
7798 | ||
5e35cbc2 | 7799 | /* Return NULL if the PATTERN argument is a glob pattern, otherwise, |
ae5a3597 | 7800 | return a pointer to the symbol name with any backslash quotes removed. */ |
5e35cbc2 L |
7801 | |
7802 | static const char * | |
7803 | realsymbol (const char *pattern) | |
7804 | { | |
7805 | const char *p; | |
7806 | bfd_boolean changed = FALSE, backslash = FALSE; | |
1e9cc1c2 | 7807 | char *s, *symbol = (char *) xmalloc (strlen (pattern) + 1); |
5e35cbc2 L |
7808 | |
7809 | for (p = pattern, s = symbol; *p != '\0'; ++p) | |
7810 | { | |
7811 | /* It is a glob pattern only if there is no preceding | |
7812 | backslash. */ | |
5e35cbc2 L |
7813 | if (backslash) |
7814 | { | |
7815 | /* Remove the preceding backslash. */ | |
7816 | *(s - 1) = *p; | |
ae5a3597 | 7817 | backslash = FALSE; |
5e35cbc2 L |
7818 | changed = TRUE; |
7819 | } | |
7820 | else | |
ae5a3597 AM |
7821 | { |
7822 | if (*p == '?' || *p == '*' || *p == '[') | |
7823 | { | |
7824 | free (symbol); | |
7825 | return NULL; | |
7826 | } | |
5e35cbc2 | 7827 | |
ae5a3597 AM |
7828 | *s++ = *p; |
7829 | backslash = *p == '\\'; | |
7830 | } | |
5e35cbc2 L |
7831 | } |
7832 | ||
7833 | if (changed) | |
7834 | { | |
7835 | *s = '\0'; | |
7836 | return symbol; | |
7837 | } | |
7838 | else | |
7839 | { | |
7840 | free (symbol); | |
7841 | return pattern; | |
7842 | } | |
7843 | } | |
7844 | ||
d3ce72d0 | 7845 | /* This is called for each variable name or match expression. NEW_NAME is |
86043bbb MM |
7846 | the name of the symbol to match, or, if LITERAL_P is FALSE, a glob |
7847 | pattern to be matched against symbol names. */ | |
252b5132 RH |
7848 | |
7849 | struct bfd_elf_version_expr * | |
1579bae1 | 7850 | lang_new_vers_pattern (struct bfd_elf_version_expr *orig, |
d3ce72d0 | 7851 | const char *new_name, |
86043bbb MM |
7852 | const char *lang, |
7853 | bfd_boolean literal_p) | |
252b5132 RH |
7854 | { |
7855 | struct bfd_elf_version_expr *ret; | |
7856 | ||
d3ce72d0 | 7857 | ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret); |
252b5132 | 7858 | ret->next = orig; |
31941635 L |
7859 | ret->symver = 0; |
7860 | ret->script = 0; | |
ae5a3597 | 7861 | ret->literal = TRUE; |
d3ce72d0 | 7862 | ret->pattern = literal_p ? new_name : realsymbol (new_name); |
ae5a3597 AM |
7863 | if (ret->pattern == NULL) |
7864 | { | |
d3ce72d0 | 7865 | ret->pattern = new_name; |
ae5a3597 AM |
7866 | ret->literal = FALSE; |
7867 | } | |
252b5132 RH |
7868 | |
7869 | if (lang == NULL || strcasecmp (lang, "C") == 0) | |
108ba305 | 7870 | ret->mask = BFD_ELF_VERSION_C_TYPE; |
252b5132 | 7871 | else if (strcasecmp (lang, "C++") == 0) |
108ba305 | 7872 | ret->mask = BFD_ELF_VERSION_CXX_TYPE; |
252b5132 | 7873 | else if (strcasecmp (lang, "Java") == 0) |
108ba305 | 7874 | ret->mask = BFD_ELF_VERSION_JAVA_TYPE; |
252b5132 RH |
7875 | else |
7876 | { | |
7877 | einfo (_("%X%P: unknown language `%s' in version information\n"), | |
7878 | lang); | |
108ba305 | 7879 | ret->mask = BFD_ELF_VERSION_C_TYPE; |
252b5132 RH |
7880 | } |
7881 | ||
fac1652d | 7882 | return ldemul_new_vers_pattern (ret); |
252b5132 RH |
7883 | } |
7884 | ||
7885 | /* This is called for each set of variable names and match | |
7886 | expressions. */ | |
7887 | ||
7888 | struct bfd_elf_version_tree * | |
1579bae1 AM |
7889 | lang_new_vers_node (struct bfd_elf_version_expr *globals, |
7890 | struct bfd_elf_version_expr *locals) | |
252b5132 RH |
7891 | { |
7892 | struct bfd_elf_version_tree *ret; | |
7893 | ||
1e9cc1c2 | 7894 | ret = (struct bfd_elf_version_tree *) xcalloc (1, sizeof *ret); |
108ba305 JJ |
7895 | ret->globals.list = globals; |
7896 | ret->locals.list = locals; | |
7897 | ret->match = lang_vers_match; | |
252b5132 | 7898 | ret->name_indx = (unsigned int) -1; |
252b5132 RH |
7899 | return ret; |
7900 | } | |
7901 | ||
7902 | /* This static variable keeps track of version indices. */ | |
7903 | ||
7904 | static int version_index; | |
7905 | ||
108ba305 JJ |
7906 | static hashval_t |
7907 | version_expr_head_hash (const void *p) | |
7908 | { | |
1e9cc1c2 NC |
7909 | const struct bfd_elf_version_expr *e = |
7910 | (const struct bfd_elf_version_expr *) p; | |
108ba305 | 7911 | |
ae5a3597 | 7912 | return htab_hash_string (e->pattern); |
108ba305 JJ |
7913 | } |
7914 | ||
7915 | static int | |
7916 | version_expr_head_eq (const void *p1, const void *p2) | |
7917 | { | |
1e9cc1c2 NC |
7918 | const struct bfd_elf_version_expr *e1 = |
7919 | (const struct bfd_elf_version_expr *) p1; | |
7920 | const struct bfd_elf_version_expr *e2 = | |
7921 | (const struct bfd_elf_version_expr *) p2; | |
108ba305 | 7922 | |
ae5a3597 | 7923 | return strcmp (e1->pattern, e2->pattern) == 0; |
108ba305 JJ |
7924 | } |
7925 | ||
7926 | static void | |
7927 | lang_finalize_version_expr_head (struct bfd_elf_version_expr_head *head) | |
7928 | { | |
7929 | size_t count = 0; | |
7930 | struct bfd_elf_version_expr *e, *next; | |
7931 | struct bfd_elf_version_expr **list_loc, **remaining_loc; | |
7932 | ||
7933 | for (e = head->list; e; e = e->next) | |
7934 | { | |
ae5a3597 | 7935 | if (e->literal) |
108ba305 JJ |
7936 | count++; |
7937 | head->mask |= e->mask; | |
7938 | } | |
7939 | ||
7940 | if (count) | |
7941 | { | |
7942 | head->htab = htab_create (count * 2, version_expr_head_hash, | |
7943 | version_expr_head_eq, NULL); | |
7944 | list_loc = &head->list; | |
7945 | remaining_loc = &head->remaining; | |
7946 | for (e = head->list; e; e = next) | |
7947 | { | |
7948 | next = e->next; | |
ae5a3597 | 7949 | if (!e->literal) |
108ba305 JJ |
7950 | { |
7951 | *remaining_loc = e; | |
7952 | remaining_loc = &e->next; | |
7953 | } | |
7954 | else | |
7955 | { | |
1e9cc1c2 | 7956 | void **loc = htab_find_slot ((htab_t) head->htab, e, INSERT); |
108ba305 JJ |
7957 | |
7958 | if (*loc) | |
7959 | { | |
7960 | struct bfd_elf_version_expr *e1, *last; | |
7961 | ||
1e9cc1c2 | 7962 | e1 = (struct bfd_elf_version_expr *) *loc; |
108ba305 JJ |
7963 | last = NULL; |
7964 | do | |
7965 | { | |
7966 | if (e1->mask == e->mask) | |
7967 | { | |
7968 | last = NULL; | |
7969 | break; | |
7970 | } | |
7971 | last = e1; | |
7972 | e1 = e1->next; | |
7973 | } | |
ae5a3597 | 7974 | while (e1 && strcmp (e1->pattern, e->pattern) == 0); |
108ba305 JJ |
7975 | |
7976 | if (last == NULL) | |
7977 | { | |
7978 | /* This is a duplicate. */ | |
7979 | /* FIXME: Memory leak. Sometimes pattern is not | |
7980 | xmalloced alone, but in larger chunk of memory. */ | |
ae5a3597 | 7981 | /* free (e->pattern); */ |
108ba305 JJ |
7982 | free (e); |
7983 | } | |
7984 | else | |
7985 | { | |
7986 | e->next = last->next; | |
7987 | last->next = e; | |
7988 | } | |
7989 | } | |
7990 | else | |
7991 | { | |
7992 | *loc = e; | |
7993 | *list_loc = e; | |
7994 | list_loc = &e->next; | |
7995 | } | |
7996 | } | |
7997 | } | |
7998 | *remaining_loc = NULL; | |
7999 | *list_loc = head->remaining; | |
8000 | } | |
8001 | else | |
8002 | head->remaining = head->list; | |
8003 | } | |
8004 | ||
252b5132 RH |
8005 | /* This is called when we know the name and dependencies of the |
8006 | version. */ | |
8007 | ||
8008 | void | |
1579bae1 AM |
8009 | lang_register_vers_node (const char *name, |
8010 | struct bfd_elf_version_tree *version, | |
8011 | struct bfd_elf_version_deps *deps) | |
252b5132 RH |
8012 | { |
8013 | struct bfd_elf_version_tree *t, **pp; | |
8014 | struct bfd_elf_version_expr *e1; | |
8015 | ||
6b9b879a JJ |
8016 | if (name == NULL) |
8017 | name = ""; | |
8018 | ||
fd91d419 L |
8019 | if (link_info.version_info != NULL |
8020 | && (name[0] == '\0' || link_info.version_info->name[0] == '\0')) | |
6b9b879a | 8021 | { |
6feb9908 AM |
8022 | einfo (_("%X%P: anonymous version tag cannot be combined" |
8023 | " with other version tags\n")); | |
5ed6aba4 | 8024 | free (version); |
6b9b879a JJ |
8025 | return; |
8026 | } | |
8027 | ||
252b5132 | 8028 | /* Make sure this node has a unique name. */ |
fd91d419 | 8029 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
8030 | if (strcmp (t->name, name) == 0) |
8031 | einfo (_("%X%P: duplicate version tag `%s'\n"), name); | |
8032 | ||
108ba305 JJ |
8033 | lang_finalize_version_expr_head (&version->globals); |
8034 | lang_finalize_version_expr_head (&version->locals); | |
8035 | ||
252b5132 RH |
8036 | /* Check the global and local match names, and make sure there |
8037 | aren't any duplicates. */ | |
8038 | ||
108ba305 | 8039 | for (e1 = version->globals.list; e1 != NULL; e1 = e1->next) |
252b5132 | 8040 | { |
fd91d419 | 8041 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
8042 | { |
8043 | struct bfd_elf_version_expr *e2; | |
8044 | ||
ae5a3597 | 8045 | if (t->locals.htab && e1->literal) |
108ba305 | 8046 | { |
1e9cc1c2 | 8047 | e2 = (struct bfd_elf_version_expr *) |
4724d37e | 8048 | htab_find ((htab_t) t->locals.htab, e1); |
ae5a3597 | 8049 | while (e2 && strcmp (e1->pattern, e2->pattern) == 0) |
108ba305 JJ |
8050 | { |
8051 | if (e1->mask == e2->mask) | |
6feb9908 | 8052 | einfo (_("%X%P: duplicate expression `%s'" |
ae5a3597 | 8053 | " in version information\n"), e1->pattern); |
108ba305 JJ |
8054 | e2 = e2->next; |
8055 | } | |
8056 | } | |
ae5a3597 | 8057 | else if (!e1->literal) |
108ba305 | 8058 | for (e2 = t->locals.remaining; e2 != NULL; e2 = e2->next) |
6feb9908 AM |
8059 | if (strcmp (e1->pattern, e2->pattern) == 0 |
8060 | && e1->mask == e2->mask) | |
8061 | einfo (_("%X%P: duplicate expression `%s'" | |
8062 | " in version information\n"), e1->pattern); | |
252b5132 RH |
8063 | } |
8064 | } | |
8065 | ||
108ba305 | 8066 | for (e1 = version->locals.list; e1 != NULL; e1 = e1->next) |
252b5132 | 8067 | { |
fd91d419 | 8068 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
8069 | { |
8070 | struct bfd_elf_version_expr *e2; | |
8071 | ||
ae5a3597 | 8072 | if (t->globals.htab && e1->literal) |
108ba305 | 8073 | { |
1e9cc1c2 | 8074 | e2 = (struct bfd_elf_version_expr *) |
4724d37e | 8075 | htab_find ((htab_t) t->globals.htab, e1); |
ae5a3597 | 8076 | while (e2 && strcmp (e1->pattern, e2->pattern) == 0) |
108ba305 JJ |
8077 | { |
8078 | if (e1->mask == e2->mask) | |
6feb9908 AM |
8079 | einfo (_("%X%P: duplicate expression `%s'" |
8080 | " in version information\n"), | |
ae5a3597 | 8081 | e1->pattern); |
108ba305 JJ |
8082 | e2 = e2->next; |
8083 | } | |
8084 | } | |
ae5a3597 | 8085 | else if (!e1->literal) |
108ba305 | 8086 | for (e2 = t->globals.remaining; e2 != NULL; e2 = e2->next) |
6feb9908 AM |
8087 | if (strcmp (e1->pattern, e2->pattern) == 0 |
8088 | && e1->mask == e2->mask) | |
8089 | einfo (_("%X%P: duplicate expression `%s'" | |
8090 | " in version information\n"), e1->pattern); | |
252b5132 RH |
8091 | } |
8092 | } | |
8093 | ||
8094 | version->deps = deps; | |
8095 | version->name = name; | |
6b9b879a JJ |
8096 | if (name[0] != '\0') |
8097 | { | |
8098 | ++version_index; | |
8099 | version->vernum = version_index; | |
8100 | } | |
8101 | else | |
8102 | version->vernum = 0; | |
252b5132 | 8103 | |
fd91d419 | 8104 | for (pp = &link_info.version_info; *pp != NULL; pp = &(*pp)->next) |
252b5132 RH |
8105 | ; |
8106 | *pp = version; | |
8107 | } | |
8108 | ||
8109 | /* This is called when we see a version dependency. */ | |
8110 | ||
8111 | struct bfd_elf_version_deps * | |
1579bae1 | 8112 | lang_add_vers_depend (struct bfd_elf_version_deps *list, const char *name) |
252b5132 RH |
8113 | { |
8114 | struct bfd_elf_version_deps *ret; | |
8115 | struct bfd_elf_version_tree *t; | |
8116 | ||
1e9cc1c2 | 8117 | ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret); |
252b5132 RH |
8118 | ret->next = list; |
8119 | ||
fd91d419 | 8120 | for (t = link_info.version_info; t != NULL; t = t->next) |
252b5132 RH |
8121 | { |
8122 | if (strcmp (t->name, name) == 0) | |
8123 | { | |
8124 | ret->version_needed = t; | |
8125 | return ret; | |
8126 | } | |
8127 | } | |
8128 | ||
8129 | einfo (_("%X%P: unable to find version dependency `%s'\n"), name); | |
8130 | ||
1e0061d2 | 8131 | ret->version_needed = NULL; |
252b5132 RH |
8132 | return ret; |
8133 | } | |
8134 | ||
8135 | static void | |
1579bae1 | 8136 | lang_do_version_exports_section (void) |
252b5132 RH |
8137 | { |
8138 | struct bfd_elf_version_expr *greg = NULL, *lreg; | |
8139 | ||
8140 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
8141 | { | |
8142 | asection *sec = bfd_get_section_by_name (is->the_bfd, ".exports"); | |
8143 | char *contents, *p; | |
8144 | bfd_size_type len; | |
8145 | ||
8146 | if (sec == NULL) | |
b7a26f91 | 8147 | continue; |
252b5132 | 8148 | |
eea6121a | 8149 | len = sec->size; |
1e9cc1c2 | 8150 | contents = (char *) xmalloc (len); |
252b5132 | 8151 | if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len)) |
6f9efd97 | 8152 | einfo (_("%X%P: unable to read .exports section contents\n"), sec); |
252b5132 RH |
8153 | |
8154 | p = contents; | |
89cdebba | 8155 | while (p < contents + len) |
252b5132 | 8156 | { |
86043bbb | 8157 | greg = lang_new_vers_pattern (greg, p, NULL, FALSE); |
252b5132 RH |
8158 | p = strchr (p, '\0') + 1; |
8159 | } | |
8160 | ||
8161 | /* Do not free the contents, as we used them creating the regex. */ | |
8162 | ||
8163 | /* Do not include this section in the link. */ | |
a14a5de3 | 8164 | sec->flags |= SEC_EXCLUDE | SEC_KEEP; |
252b5132 RH |
8165 | } |
8166 | ||
86043bbb | 8167 | lreg = lang_new_vers_pattern (NULL, "*", NULL, FALSE); |
252b5132 RH |
8168 | lang_register_vers_node (command_line.version_exports_section, |
8169 | lang_new_vers_node (greg, lreg), NULL); | |
8170 | } | |
577a0623 | 8171 | |
cc9ad334 SKS |
8172 | /* Evaluate LENGTH and ORIGIN parts of MEMORY spec */ |
8173 | ||
8174 | static void | |
8175 | lang_do_memory_regions (void) | |
8176 | { | |
8177 | lang_memory_region_type *r = lang_memory_region_list; | |
8178 | ||
8179 | for (; r != NULL; r = r->next) | |
8180 | { | |
8181 | if (r->origin_exp) | |
8182 | { | |
8183 | exp_fold_tree_no_dot (r->origin_exp); | |
8184 | if (expld.result.valid_p) | |
8185 | { | |
8186 | r->origin = expld.result.value; | |
8187 | r->current = r->origin; | |
8188 | } | |
8189 | else | |
8190 | einfo (_("%F%P: invalid origin for memory region %s\n"), r->name_list.name); | |
8191 | } | |
8192 | if (r->length_exp) | |
8193 | { | |
8194 | exp_fold_tree_no_dot (r->length_exp); | |
8195 | if (expld.result.valid_p) | |
8196 | r->length = expld.result.value; | |
8197 | else | |
8198 | einfo (_("%F%P: invalid length for memory region %s\n"), r->name_list.name); | |
8199 | } | |
8200 | } | |
8201 | } | |
8202 | ||
577a0623 | 8203 | void |
1579bae1 | 8204 | lang_add_unique (const char *name) |
577a0623 AM |
8205 | { |
8206 | struct unique_sections *ent; | |
8207 | ||
8208 | for (ent = unique_section_list; ent; ent = ent->next) | |
8209 | if (strcmp (ent->name, name) == 0) | |
8210 | return; | |
8211 | ||
1e9cc1c2 | 8212 | ent = (struct unique_sections *) xmalloc (sizeof *ent); |
577a0623 AM |
8213 | ent->name = xstrdup (name); |
8214 | ent->next = unique_section_list; | |
8215 | unique_section_list = ent; | |
8216 | } | |
55255dae L |
8217 | |
8218 | /* Append the list of dynamic symbols to the existing one. */ | |
8219 | ||
8220 | void | |
8221 | lang_append_dynamic_list (struct bfd_elf_version_expr *dynamic) | |
8222 | { | |
40b36307 | 8223 | if (link_info.dynamic_list) |
55255dae | 8224 | { |
07806542 JJ |
8225 | struct bfd_elf_version_expr *tail; |
8226 | for (tail = dynamic; tail->next != NULL; tail = tail->next) | |
8227 | ; | |
40b36307 L |
8228 | tail->next = link_info.dynamic_list->head.list; |
8229 | link_info.dynamic_list->head.list = dynamic; | |
55255dae L |
8230 | } |
8231 | else | |
8232 | { | |
8233 | struct bfd_elf_dynamic_list *d; | |
8234 | ||
1e9cc1c2 | 8235 | d = (struct bfd_elf_dynamic_list *) xcalloc (1, sizeof *d); |
55255dae L |
8236 | d->head.list = dynamic; |
8237 | d->match = lang_vers_match; | |
40b36307 | 8238 | link_info.dynamic_list = d; |
55255dae L |
8239 | } |
8240 | } | |
8241 | ||
8242 | /* Append the list of C++ typeinfo dynamic symbols to the existing | |
8243 | one. */ | |
8244 | ||
8245 | void | |
8246 | lang_append_dynamic_list_cpp_typeinfo (void) | |
8247 | { | |
8248 | const char * symbols [] = | |
8249 | { | |
8250 | "typeinfo name for*", | |
8251 | "typeinfo for*" | |
8252 | }; | |
8253 | struct bfd_elf_version_expr *dynamic = NULL; | |
8254 | unsigned int i; | |
8255 | ||
8256 | for (i = 0; i < ARRAY_SIZE (symbols); i++) | |
8257 | dynamic = lang_new_vers_pattern (dynamic, symbols [i], "C++", | |
8258 | FALSE); | |
8259 | ||
8260 | lang_append_dynamic_list (dynamic); | |
8261 | } | |
40b36307 L |
8262 | |
8263 | /* Append the list of C++ operator new and delete dynamic symbols to the | |
8264 | existing one. */ | |
8265 | ||
8266 | void | |
8267 | lang_append_dynamic_list_cpp_new (void) | |
8268 | { | |
8269 | const char * symbols [] = | |
8270 | { | |
8271 | "operator new*", | |
8272 | "operator delete*" | |
8273 | }; | |
8274 | struct bfd_elf_version_expr *dynamic = NULL; | |
8275 | unsigned int i; | |
8276 | ||
8277 | for (i = 0; i < ARRAY_SIZE (symbols); i++) | |
8278 | dynamic = lang_new_vers_pattern (dynamic, symbols [i], "C++", | |
8279 | FALSE); | |
8280 | ||
8281 | lang_append_dynamic_list (dynamic); | |
8282 | } | |
01554a74 AM |
8283 | |
8284 | /* Scan a space and/or comma separated string of features. */ | |
8285 | ||
8286 | void | |
8287 | lang_ld_feature (char *str) | |
8288 | { | |
8289 | char *p, *q; | |
8290 | ||
8291 | p = str; | |
8292 | while (*p) | |
8293 | { | |
8294 | char sep; | |
8295 | while (*p == ',' || ISSPACE (*p)) | |
8296 | ++p; | |
8297 | if (!*p) | |
8298 | break; | |
8299 | q = p + 1; | |
8300 | while (*q && *q != ',' && !ISSPACE (*q)) | |
8301 | ++q; | |
8302 | sep = *q; | |
8303 | *q = 0; | |
8304 | if (strcasecmp (p, "SANE_EXPR") == 0) | |
8305 | config.sane_expr = TRUE; | |
8306 | else | |
8307 | einfo (_("%X%P: unknown feature `%s'\n"), p); | |
8308 | *q = sep; | |
8309 | p = q; | |
8310 | } | |
8311 | } | |
3604cb1f TG |
8312 | |
8313 | /* Pretty print memory amount. */ | |
8314 | ||
8315 | static void | |
8316 | lang_print_memory_size (bfd_vma sz) | |
8317 | { | |
8318 | if ((sz & 0x3fffffff) == 0) | |
8319 | printf ("%10" BFD_VMA_FMT "u GB", sz >> 30); | |
8320 | else if ((sz & 0xfffff) == 0) | |
8321 | printf ("%10" BFD_VMA_FMT "u MB", sz >> 20); | |
8322 | else if ((sz & 0x3ff) == 0) | |
8323 | printf ("%10" BFD_VMA_FMT "u KB", sz >> 10); | |
8324 | else | |
8325 | printf (" %10" BFD_VMA_FMT "u B", sz); | |
8326 | } | |
8327 | ||
8328 | /* Implement --print-memory-usage: disply per region memory usage. */ | |
8329 | ||
8330 | void | |
8331 | lang_print_memory_usage (void) | |
8332 | { | |
8333 | lang_memory_region_type *r; | |
8334 | ||
8335 | printf ("Memory region Used Size Region Size %%age Used\n"); | |
8336 | for (r = lang_memory_region_list; r->next != NULL; r = r->next) | |
8337 | { | |
8338 | bfd_vma used_length = r->current - r->origin; | |
8339 | double percent; | |
8340 | ||
8341 | printf ("%16s: ",r->name_list.name); | |
8342 | lang_print_memory_size (used_length); | |
8343 | lang_print_memory_size ((bfd_vma) r->length); | |
8344 | ||
8345 | percent = used_length * 100.0 / r->length; | |
8346 | ||
8347 | printf (" %6.2f%%\n", percent); | |
8348 | } | |
8349 | } |