Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Linker command language support. |
a2b64bed | 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
cf888e70 | 3 | 2001, 2002, 2003 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
53b2a62f | 6 | This file is part of GLD, the Gnu Linker. |
252b5132 | 7 | |
53b2a62f NC |
8 | GLD is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
252b5132 | 12 | |
53b2a62f NC |
13 | GLD is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
53b2a62f NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with GLD; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
252b5132 RH |
22 | |
23 | #include "bfd.h" | |
24 | #include "sysdep.h" | |
25 | #include "libiberty.h" | |
3882b010 | 26 | #include "safe-ctype.h" |
252b5132 RH |
27 | #include "obstack.h" |
28 | #include "bfdlink.h" | |
29 | ||
30 | #include "ld.h" | |
31 | #include "ldmain.h" | |
252b5132 RH |
32 | #include "ldexp.h" |
33 | #include "ldlang.h" | |
df2a7313 | 34 | #include <ldgram.h> |
252b5132 RH |
35 | #include "ldlex.h" |
36 | #include "ldmisc.h" | |
37 | #include "ldctor.h" | |
38 | #include "ldfile.h" | |
b71e2778 | 39 | #include "ldemul.h" |
252b5132 RH |
40 | #include "fnmatch.h" |
41 | #include "demangle.h" | |
42 | ||
7abb6dea | 43 | #ifndef offsetof |
cf888e70 | 44 | #define offsetof(TYPE, MEMBER) ((size_t) & (((TYPE*) 0)->MEMBER)) |
7abb6dea AM |
45 | #endif |
46 | ||
cf888e70 | 47 | /* Locals variables. */ |
252b5132 RH |
48 | static struct obstack stat_obstack; |
49 | ||
50 | #define obstack_chunk_alloc xmalloc | |
51 | #define obstack_chunk_free free | |
5f992e62 | 52 | static const char *startup_file; |
252b5132 | 53 | static lang_statement_list_type input_file_chain; |
b34976b6 | 54 | static bfd_boolean placed_commons = FALSE; |
252b5132 | 55 | static lang_output_section_statement_type *default_common_section; |
b34976b6 | 56 | static bfd_boolean map_option_f; |
252b5132 RH |
57 | static bfd_vma print_dot; |
58 | static lang_input_statement_type *first_file; | |
5f992e62 AM |
59 | static const char *current_target; |
60 | static const char *output_target; | |
252b5132 RH |
61 | static lang_statement_list_type statement_list; |
62 | static struct lang_phdr *lang_phdr_list; | |
63 | ||
cf888e70 NC |
64 | /* Forward declarations. */ |
65 | static lang_statement_union_type *new_statement | |
66 | PARAMS ((enum statement_enum, size_t, lang_statement_list_type *)); | |
252b5132 | 67 | static void lang_for_each_statement_worker |
5f992e62 AM |
68 | PARAMS ((void (*) (lang_statement_union_type *), |
69 | lang_statement_union_type *)); | |
252b5132 | 70 | static lang_input_statement_type *new_afile |
b34976b6 AM |
71 | PARAMS ((const char *, lang_input_file_enum_type, const char *, |
72 | bfd_boolean)); | |
73 | static lang_memory_region_type *lang_memory_default | |
74 | PARAMS ((asection *)); | |
75 | static void lang_map_flags | |
76 | PARAMS ((flagword)); | |
77 | static void init_os | |
78 | PARAMS ((lang_output_section_statement_type *)); | |
79 | static void exp_init_os | |
80 | PARAMS ((etree_type *)); | |
81 | static void section_already_linked | |
82 | PARAMS ((bfd *, asection *, PTR)); | |
9503fd87 | 83 | static struct bfd_hash_entry *already_linked_newfunc |
5f992e62 | 84 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
b34976b6 AM |
85 | static void already_linked_table_init |
86 | PARAMS ((void)); | |
87 | static void already_linked_table_free | |
88 | PARAMS ((void)); | |
89 | static bfd_boolean wildcardp | |
90 | PARAMS ((const char *)); | |
252b5132 | 91 | static lang_statement_union_type *wild_sort |
b6bf44ba AM |
92 | PARAMS ((lang_wild_statement_type *, struct wildcard_list *, |
93 | lang_input_statement_type *, asection *)); | |
5f992e62 | 94 | static void output_section_callback |
b6bf44ba | 95 | PARAMS ((lang_wild_statement_type *, struct wildcard_list *, asection *, |
5f992e62 | 96 | lang_input_statement_type *, PTR)); |
b34976b6 AM |
97 | static lang_input_statement_type *lookup_name |
98 | PARAMS ((const char *)); | |
99 | static bfd_boolean load_symbols | |
5f992e62 AM |
100 | PARAMS ((lang_input_statement_type *, lang_statement_list_type *)); |
101 | static void wild | |
b6bf44ba | 102 | PARAMS ((lang_wild_statement_type *, |
5f992e62 | 103 | const char *, lang_output_section_statement_type *)); |
b34976b6 AM |
104 | static bfd *open_output |
105 | PARAMS ((const char *)); | |
106 | static void ldlang_open_output | |
107 | PARAMS ((lang_statement_union_type *)); | |
108 | static void open_input_bfds | |
109 | PARAMS ((lang_statement_union_type *, bfd_boolean)); | |
110 | static void lang_reasonable_defaults | |
111 | PARAMS ((void)); | |
112 | static void insert_undefined | |
113 | PARAMS ((const char *)); | |
114 | static void lang_place_undefineds | |
115 | PARAMS ((void)); | |
252b5132 | 116 | static void map_input_to_output_sections |
5f992e62 AM |
117 | PARAMS ((lang_statement_union_type *, const char *, |
118 | lang_output_section_statement_type *)); | |
b34976b6 AM |
119 | static void strip_excluded_output_sections |
120 | PARAMS ((void)); | |
252b5132 | 121 | static void print_output_section_statement |
5f992e62 | 122 | PARAMS ((lang_output_section_statement_type *)); |
252b5132 | 123 | static void print_assignment |
5f992e62 AM |
124 | PARAMS ((lang_assignment_statement_type *, |
125 | lang_output_section_statement_type *)); | |
b34976b6 AM |
126 | static void print_input_statement |
127 | PARAMS ((lang_input_statement_type *)); | |
128 | static bfd_boolean print_one_symbol | |
129 | PARAMS ((struct bfd_link_hash_entry *, PTR)); | |
130 | static void print_input_section | |
131 | PARAMS ((lang_input_section_type *)); | |
132 | static void print_fill_statement | |
133 | PARAMS ((lang_fill_statement_type *)); | |
134 | static void print_data_statement | |
135 | PARAMS ((lang_data_statement_type *)); | |
136 | static void print_address_statement | |
137 | PARAMS ((lang_address_statement_type *)); | |
138 | static void print_reloc_statement | |
139 | PARAMS ((lang_reloc_statement_type *)); | |
140 | static void print_padding_statement | |
141 | PARAMS ((lang_padding_statement_type *)); | |
252b5132 | 142 | static void print_wild_statement |
5f992e62 | 143 | PARAMS ((lang_wild_statement_type *, lang_output_section_statement_type *)); |
252b5132 RH |
144 | static void print_group |
145 | PARAMS ((lang_group_statement_type *, lang_output_section_statement_type *)); | |
5f992e62 AM |
146 | static void print_statement |
147 | PARAMS ((lang_statement_union_type *, lang_output_section_statement_type *)); | |
148 | static void print_statement_list | |
149 | PARAMS ((lang_statement_union_type *, lang_output_section_statement_type *)); | |
b34976b6 AM |
150 | static void print_statements |
151 | PARAMS ((void)); | |
b3327aad | 152 | static void insert_pad |
2c382fb6 | 153 | PARAMS ((lang_statement_union_type **, fill_type *, |
2be3aa03 | 154 | unsigned int, asection *, bfd_vma)); |
252b5132 | 155 | static bfd_vma size_input_section |
2be3aa03 | 156 | PARAMS ((lang_statement_union_type **, lang_output_section_statement_type *, |
2c382fb6 | 157 | fill_type *, bfd_vma)); |
b34976b6 AM |
158 | static void lang_finish |
159 | PARAMS ((void)); | |
160 | static void ignore_bfd_errors | |
161 | PARAMS ((const char *, ...)); | |
162 | static void lang_check | |
163 | PARAMS ((void)); | |
164 | static void lang_common | |
165 | PARAMS ((void)); | |
166 | static bfd_boolean lang_one_common | |
167 | PARAMS ((struct bfd_link_hash_entry *, PTR)); | |
168 | static void lang_place_orphans | |
169 | PARAMS ((void)); | |
170 | static int topower | |
171 | PARAMS ((int)); | |
172 | static void lang_set_startof | |
173 | PARAMS ((void)); | |
5f992e62 | 174 | static void gc_section_callback |
b6bf44ba | 175 | PARAMS ((lang_wild_statement_type *, struct wildcard_list *, asection *, |
5f992e62 | 176 | lang_input_statement_type *, PTR)); |
b34976b6 AM |
177 | static void lang_get_regions |
178 | PARAMS ((struct memory_region_struct **, struct memory_region_struct **, | |
179 | const char *, const char *, int)); | |
180 | static void lang_record_phdrs | |
181 | PARAMS ((void)); | |
182 | static void lang_gc_wild | |
183 | PARAMS ((lang_wild_statement_type *)); | |
184 | static void lang_gc_sections_1 | |
185 | PARAMS ((lang_statement_union_type *)); | |
186 | static void lang_gc_sections | |
187 | PARAMS ((void)); | |
5f992e62 AM |
188 | static int lang_vers_match_lang_c |
189 | PARAMS ((struct bfd_elf_version_expr *, const char *)); | |
190 | static int lang_vers_match_lang_cplusplus | |
191 | PARAMS ((struct bfd_elf_version_expr *, const char *)); | |
192 | static int lang_vers_match_lang_java | |
193 | PARAMS ((struct bfd_elf_version_expr *, const char *)); | |
b34976b6 AM |
194 | static void lang_do_version_exports_section |
195 | PARAMS ((void)); | |
196 | static void lang_check_section_addresses | |
197 | PARAMS ((void)); | |
5f992e62 AM |
198 | static void os_region_check |
199 | PARAMS ((lang_output_section_statement_type *, | |
200 | struct memory_region_struct *, etree_type *, bfd_vma)); | |
2d20f7bf JJ |
201 | static bfd_vma lang_size_sections_1 |
202 | PARAMS ((lang_statement_union_type *, lang_output_section_statement_type *, | |
cf888e70 NC |
203 | lang_statement_union_type **, fill_type *, bfd_vma, bfd_boolean *, |
204 | bfd_boolean)); | |
b34976b6 AM |
205 | typedef void (*callback_t) |
206 | PARAMS ((lang_wild_statement_type *, struct wildcard_list *, asection *, | |
207 | lang_input_statement_type *, PTR)); | |
5f992e62 | 208 | static void walk_wild |
b6bf44ba | 209 | PARAMS ((lang_wild_statement_type *, callback_t, PTR)); |
4dec4d4e | 210 | static void walk_wild_section |
b6bf44ba AM |
211 | PARAMS ((lang_wild_statement_type *, lang_input_statement_type *, |
212 | callback_t, PTR)); | |
4dec4d4e | 213 | static void walk_wild_file |
b6bf44ba AM |
214 | PARAMS ((lang_wild_statement_type *, lang_input_statement_type *, |
215 | callback_t, PTR)); | |
b34976b6 AM |
216 | static int get_target |
217 | PARAMS ((const bfd_target *, PTR)); | |
218 | static void stricpy | |
219 | PARAMS ((char *, char *)); | |
220 | static void strcut | |
221 | PARAMS ((char *, char *)); | |
222 | static int name_compare | |
223 | PARAMS ((char *, char *)); | |
224 | static int closest_target_match | |
225 | PARAMS ((const bfd_target *, PTR)); | |
226 | static char * get_first_input_target | |
227 | PARAMS ((void)); | |
5f992e62 | 228 | |
cf888e70 | 229 | /* Exported variables. */ |
252b5132 | 230 | lang_output_section_statement_type *abs_output_section; |
aea4bd9d | 231 | lang_statement_list_type lang_output_section_statement; |
252b5132 | 232 | lang_statement_list_type *stat_ptr = &statement_list; |
87f2a346 | 233 | lang_statement_list_type file_chain = { NULL, NULL }; |
e3e942e9 | 234 | struct bfd_sym_chain entry_symbol = { NULL, NULL }; |
1e281515 | 235 | const char *entry_section = ".text"; |
b34976b6 AM |
236 | bfd_boolean entry_from_cmdline; |
237 | bfd_boolean lang_has_input_file = FALSE; | |
238 | bfd_boolean had_output_filename = FALSE; | |
239 | bfd_boolean lang_float_flag = FALSE; | |
240 | bfd_boolean delete_output_file_on_failure = FALSE; | |
252b5132 | 241 | struct lang_nocrossrefs *nocrossref_list; |
577a0623 | 242 | struct unique_sections *unique_section_list; |
252b5132 RH |
243 | |
244 | etree_type *base; /* Relocation base - or null */ | |
245 | ||
d1778b88 | 246 | #if defined (__STDC__) || defined (ALMOST_STDC) |
252b5132 RH |
247 | #define cat(a,b) a##b |
248 | #else | |
249 | #define cat(a,b) a/**/b | |
250 | #endif | |
251 | ||
d1778b88 AM |
252 | /* Don't beautify the line below with "innocent" whitespace, it breaks |
253 | the K&R C preprocessor! */ | |
254 | #define new_stat(x, y) \ | |
255 | (cat (x,_type)*) new_statement (cat (x,_enum), sizeof (cat (x,_type)), y) | |
252b5132 | 256 | |
d1778b88 AM |
257 | #define outside_section_address(q) \ |
258 | ((q)->output_offset + (q)->output_section->vma) | |
252b5132 | 259 | |
d1778b88 AM |
260 | #define outside_symbol_address(q) \ |
261 | ((q)->value + outside_section_address (q->section)) | |
252b5132 RH |
262 | |
263 | #define SECTION_NAME_MAP_LENGTH (16) | |
264 | ||
265 | PTR | |
266 | stat_alloc (size) | |
267 | size_t size; | |
268 | { | |
269 | return obstack_alloc (&stat_obstack, size); | |
270 | } | |
271 | ||
b34976b6 | 272 | bfd_boolean |
577a0623 AM |
273 | unique_section_p (secnam) |
274 | const char *secnam; | |
275 | { | |
276 | struct unique_sections *unam; | |
277 | ||
278 | for (unam = unique_section_list; unam; unam = unam->next) | |
279 | if (wildcardp (unam->name) | |
280 | ? fnmatch (unam->name, secnam, 0) == 0 | |
281 | : strcmp (unam->name, secnam) == 0) | |
282 | { | |
b34976b6 | 283 | return TRUE; |
577a0623 AM |
284 | } |
285 | ||
b34976b6 | 286 | return FALSE; |
577a0623 AM |
287 | } |
288 | ||
08da4cac | 289 | /* Generic traversal routines for finding matching sections. */ |
4dec4d4e RH |
290 | |
291 | static void | |
b6bf44ba | 292 | walk_wild_section (ptr, file, callback, data) |
4dec4d4e | 293 | lang_wild_statement_type *ptr; |
4dec4d4e RH |
294 | lang_input_statement_type *file; |
295 | callback_t callback; | |
5f992e62 | 296 | PTR data; |
4dec4d4e | 297 | { |
b6bf44ba AM |
298 | asection *s; |
299 | ||
300 | if (file->just_syms_flag) | |
301 | return; | |
302 | ||
303 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
4dec4d4e | 304 | { |
b6bf44ba AM |
305 | struct wildcard_list *sec; |
306 | ||
307 | sec = ptr->section_list; | |
2181f54f AM |
308 | if (sec == NULL) |
309 | (*callback) (ptr, sec, s, file, data); | |
310 | ||
311 | while (sec != NULL) | |
08da4cac | 312 | { |
b34976b6 | 313 | bfd_boolean skip = FALSE; |
2181f54f AM |
314 | struct name_list *list_tmp; |
315 | ||
316 | /* Don't process sections from files which were | |
317 | excluded. */ | |
318 | for (list_tmp = sec->spec.exclude_name_list; | |
319 | list_tmp; | |
320 | list_tmp = list_tmp->next) | |
321 | { | |
322 | if (wildcardp (list_tmp->name)) | |
323 | skip = fnmatch (list_tmp->name, file->filename, 0) == 0; | |
324 | else | |
325 | skip = strcmp (list_tmp->name, file->filename) == 0; | |
4dec4d4e | 326 | |
34efb449 AO |
327 | /* If this file is part of an archive, and the archive is |
328 | excluded, exclude this file. */ | |
329 | if (! skip && file->the_bfd != NULL | |
330 | && file->the_bfd->my_archive != NULL | |
331 | && file->the_bfd->my_archive->filename != NULL) | |
332 | { | |
333 | if (wildcardp (list_tmp->name)) | |
334 | skip = fnmatch (list_tmp->name, | |
335 | file->the_bfd->my_archive->filename, | |
336 | 0) == 0; | |
337 | else | |
338 | skip = strcmp (list_tmp->name, | |
339 | file->the_bfd->my_archive->filename) == 0; | |
340 | } | |
341 | ||
2181f54f AM |
342 | if (skip) |
343 | break; | |
344 | } | |
345 | ||
346 | if (!skip && sec->spec.name != NULL) | |
b6bf44ba | 347 | { |
2181f54f AM |
348 | const char *sname = bfd_get_section_name (file->the_bfd, s); |
349 | ||
350 | if (wildcardp (sec->spec.name)) | |
351 | skip = fnmatch (sec->spec.name, sname, 0) != 0; | |
352 | else | |
353 | skip = strcmp (sec->spec.name, sname) != 0; | |
b6bf44ba | 354 | } |
4dec4d4e | 355 | |
b6bf44ba AM |
356 | if (!skip) |
357 | (*callback) (ptr, sec, s, file, data); | |
4dec4d4e | 358 | |
2181f54f | 359 | sec = sec->next; |
4dec4d4e RH |
360 | } |
361 | } | |
362 | } | |
363 | ||
364 | /* Handle a wild statement for a single file F. */ | |
365 | ||
366 | static void | |
b6bf44ba | 367 | walk_wild_file (s, f, callback, data) |
4dec4d4e | 368 | lang_wild_statement_type *s; |
4dec4d4e RH |
369 | lang_input_statement_type *f; |
370 | callback_t callback; | |
5f992e62 | 371 | PTR data; |
4dec4d4e RH |
372 | { |
373 | if (f->the_bfd == NULL | |
374 | || ! bfd_check_format (f->the_bfd, bfd_archive)) | |
b6bf44ba | 375 | walk_wild_section (s, f, callback, data); |
4dec4d4e RH |
376 | else |
377 | { | |
378 | bfd *member; | |
379 | ||
380 | /* This is an archive file. We must map each member of the | |
381 | archive separately. */ | |
382 | member = bfd_openr_next_archived_file (f->the_bfd, (bfd *) NULL); | |
383 | while (member != NULL) | |
384 | { | |
385 | /* When lookup_name is called, it will call the add_symbols | |
386 | entry point for the archive. For each element of the | |
387 | archive which is included, BFD will call ldlang_add_file, | |
388 | which will set the usrdata field of the member to the | |
389 | lang_input_statement. */ | |
390 | if (member->usrdata != NULL) | |
391 | { | |
b6bf44ba | 392 | walk_wild_section (s, |
4dec4d4e RH |
393 | (lang_input_statement_type *) member->usrdata, |
394 | callback, data); | |
395 | } | |
396 | ||
397 | member = bfd_openr_next_archived_file (f->the_bfd, member); | |
398 | } | |
399 | } | |
400 | } | |
401 | ||
402 | static void | |
b6bf44ba | 403 | walk_wild (s, callback, data) |
4dec4d4e | 404 | lang_wild_statement_type *s; |
4dec4d4e | 405 | callback_t callback; |
5f992e62 | 406 | PTR data; |
4dec4d4e | 407 | { |
b6bf44ba AM |
408 | const char *file_spec = s->filename; |
409 | ||
410 | if (file_spec == NULL) | |
4dec4d4e RH |
411 | { |
412 | /* Perform the iteration over all files in the list. */ | |
e50d8076 | 413 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 414 | { |
b6bf44ba | 415 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
416 | } |
417 | } | |
b6bf44ba | 418 | else if (wildcardp (file_spec)) |
4dec4d4e | 419 | { |
e50d8076 | 420 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 421 | { |
b6bf44ba AM |
422 | if (fnmatch (file_spec, f->filename, FNM_FILE_NAME) == 0) |
423 | walk_wild_file (s, f, callback, data); | |
4dec4d4e RH |
424 | } |
425 | } | |
426 | else | |
427 | { | |
e50d8076 NC |
428 | lang_input_statement_type *f; |
429 | ||
4dec4d4e | 430 | /* Perform the iteration over a single file. */ |
b6bf44ba | 431 | f = lookup_name (file_spec); |
6770ec8c | 432 | if (f) |
b6bf44ba | 433 | walk_wild_file (s, f, callback, data); |
4dec4d4e | 434 | } |
5f992e62 AM |
435 | } |
436 | ||
08da4cac KH |
437 | /* lang_for_each_statement walks the parse tree and calls the provided |
438 | function for each node. */ | |
252b5132 RH |
439 | |
440 | static void | |
441 | lang_for_each_statement_worker (func, s) | |
442 | void (*func) PARAMS ((lang_statement_union_type *)); | |
443 | lang_statement_union_type *s; | |
444 | { | |
bba1a0c0 | 445 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
446 | { |
447 | func (s); | |
448 | ||
449 | switch (s->header.type) | |
450 | { | |
451 | case lang_constructors_statement_enum: | |
452 | lang_for_each_statement_worker (func, constructor_list.head); | |
453 | break; | |
454 | case lang_output_section_statement_enum: | |
455 | lang_for_each_statement_worker | |
456 | (func, | |
457 | s->output_section_statement.children.head); | |
458 | break; | |
459 | case lang_wild_statement_enum: | |
460 | lang_for_each_statement_worker | |
461 | (func, | |
462 | s->wild_statement.children.head); | |
463 | break; | |
464 | case lang_group_statement_enum: | |
465 | lang_for_each_statement_worker (func, | |
466 | s->group_statement.children.head); | |
467 | break; | |
468 | case lang_data_statement_enum: | |
469 | case lang_reloc_statement_enum: | |
470 | case lang_object_symbols_statement_enum: | |
471 | case lang_output_statement_enum: | |
472 | case lang_target_statement_enum: | |
473 | case lang_input_section_enum: | |
474 | case lang_input_statement_enum: | |
475 | case lang_assignment_statement_enum: | |
476 | case lang_padding_statement_enum: | |
477 | case lang_address_statement_enum: | |
478 | case lang_fill_statement_enum: | |
479 | break; | |
480 | default: | |
481 | FAIL (); | |
482 | break; | |
483 | } | |
484 | } | |
485 | } | |
486 | ||
487 | void | |
488 | lang_for_each_statement (func) | |
489 | void (*func) PARAMS ((lang_statement_union_type *)); | |
490 | { | |
08da4cac | 491 | lang_for_each_statement_worker (func, statement_list.head); |
252b5132 RH |
492 | } |
493 | ||
494 | /*----------------------------------------------------------------------*/ | |
08da4cac | 495 | |
252b5132 RH |
496 | void |
497 | lang_list_init (list) | |
498 | lang_statement_list_type *list; | |
499 | { | |
500 | list->head = (lang_statement_union_type *) NULL; | |
501 | list->tail = &list->head; | |
502 | } | |
503 | ||
08da4cac | 504 | /* Build a new statement node for the parse tree. */ |
252b5132 | 505 | |
08da4cac | 506 | static lang_statement_union_type * |
252b5132 RH |
507 | new_statement (type, size, list) |
508 | enum statement_enum type; | |
509 | size_t size; | |
08da4cac | 510 | lang_statement_list_type *list; |
252b5132 RH |
511 | { |
512 | lang_statement_union_type *new = (lang_statement_union_type *) | |
513 | stat_alloc (size); | |
514 | ||
515 | new->header.type = type; | |
516 | new->header.next = (lang_statement_union_type *) NULL; | |
517 | lang_statement_append (list, new, &new->header.next); | |
518 | return new; | |
519 | } | |
520 | ||
08da4cac KH |
521 | /* Build a new input file node for the language. There are several |
522 | ways in which we treat an input file, eg, we only look at symbols, | |
523 | or prefix it with a -l etc. | |
252b5132 | 524 | |
08da4cac | 525 | We can be supplied with requests for input files more than once; |
396a2467 | 526 | they may, for example be split over several lines like foo.o(.text) |
d1778b88 | 527 | foo.o(.data) etc, so when asked for a file we check that we haven't |
08da4cac | 528 | got it already so we don't duplicate the bfd. */ |
252b5132 | 529 | |
252b5132 RH |
530 | static lang_input_statement_type * |
531 | new_afile (name, file_type, target, add_to_list) | |
5f992e62 | 532 | const char *name; |
252b5132 | 533 | lang_input_file_enum_type file_type; |
5f992e62 | 534 | const char *target; |
b34976b6 | 535 | bfd_boolean add_to_list; |
252b5132 RH |
536 | { |
537 | lang_input_statement_type *p; | |
538 | ||
539 | if (add_to_list) | |
540 | p = new_stat (lang_input_statement, stat_ptr); | |
541 | else | |
542 | { | |
543 | p = ((lang_input_statement_type *) | |
544 | stat_alloc (sizeof (lang_input_statement_type))); | |
545 | p->header.next = NULL; | |
546 | } | |
547 | ||
b34976b6 | 548 | lang_has_input_file = TRUE; |
252b5132 RH |
549 | p->target = target; |
550 | switch (file_type) | |
551 | { | |
552 | case lang_input_file_is_symbols_only_enum: | |
553 | p->filename = name; | |
b34976b6 AM |
554 | p->is_archive = FALSE; |
555 | p->real = TRUE; | |
252b5132 | 556 | p->local_sym_name = name; |
b34976b6 AM |
557 | p->just_syms_flag = TRUE; |
558 | p->search_dirs_flag = FALSE; | |
252b5132 RH |
559 | break; |
560 | case lang_input_file_is_fake_enum: | |
561 | p->filename = name; | |
b34976b6 AM |
562 | p->is_archive = FALSE; |
563 | p->real = FALSE; | |
252b5132 | 564 | p->local_sym_name = name; |
b34976b6 AM |
565 | p->just_syms_flag = FALSE; |
566 | p->search_dirs_flag = FALSE; | |
252b5132 RH |
567 | break; |
568 | case lang_input_file_is_l_enum: | |
b34976b6 | 569 | p->is_archive = TRUE; |
252b5132 | 570 | p->filename = name; |
b34976b6 | 571 | p->real = TRUE; |
252b5132 | 572 | p->local_sym_name = concat ("-l", name, (const char *) NULL); |
b34976b6 AM |
573 | p->just_syms_flag = FALSE; |
574 | p->search_dirs_flag = TRUE; | |
252b5132 RH |
575 | break; |
576 | case lang_input_file_is_marker_enum: | |
577 | p->filename = name; | |
b34976b6 AM |
578 | p->is_archive = FALSE; |
579 | p->real = FALSE; | |
252b5132 | 580 | p->local_sym_name = name; |
b34976b6 AM |
581 | p->just_syms_flag = FALSE; |
582 | p->search_dirs_flag = TRUE; | |
252b5132 RH |
583 | break; |
584 | case lang_input_file_is_search_file_enum: | |
585 | p->filename = name; | |
b34976b6 AM |
586 | p->is_archive = FALSE; |
587 | p->real = TRUE; | |
252b5132 | 588 | p->local_sym_name = name; |
b34976b6 AM |
589 | p->just_syms_flag = FALSE; |
590 | p->search_dirs_flag = TRUE; | |
252b5132 RH |
591 | break; |
592 | case lang_input_file_is_file_enum: | |
593 | p->filename = name; | |
b34976b6 AM |
594 | p->is_archive = FALSE; |
595 | p->real = TRUE; | |
252b5132 | 596 | p->local_sym_name = name; |
b34976b6 AM |
597 | p->just_syms_flag = FALSE; |
598 | p->search_dirs_flag = FALSE; | |
252b5132 RH |
599 | break; |
600 | default: | |
601 | FAIL (); | |
602 | } | |
603 | p->the_bfd = (bfd *) NULL; | |
604 | p->asymbols = (asymbol **) NULL; | |
605 | p->next_real_file = (lang_statement_union_type *) NULL; | |
606 | p->next = (lang_statement_union_type *) NULL; | |
607 | p->symbol_count = 0; | |
608 | p->dynamic = config.dynamic_link; | |
609 | p->whole_archive = whole_archive; | |
b34976b6 | 610 | p->loaded = FALSE; |
252b5132 RH |
611 | lang_statement_append (&input_file_chain, |
612 | (lang_statement_union_type *) p, | |
613 | &p->next_real_file); | |
614 | return p; | |
615 | } | |
616 | ||
617 | lang_input_statement_type * | |
618 | lang_add_input_file (name, file_type, target) | |
5f992e62 | 619 | const char *name; |
252b5132 | 620 | lang_input_file_enum_type file_type; |
5f992e62 | 621 | const char *target; |
252b5132 | 622 | { |
b34976b6 AM |
623 | lang_has_input_file = TRUE; |
624 | return new_afile (name, file_type, target, TRUE); | |
252b5132 RH |
625 | } |
626 | ||
08da4cac KH |
627 | /* Build enough state so that the parser can build its tree. */ |
628 | ||
252b5132 RH |
629 | void |
630 | lang_init () | |
631 | { | |
632 | obstack_begin (&stat_obstack, 1000); | |
633 | ||
634 | stat_ptr = &statement_list; | |
635 | ||
636 | lang_list_init (stat_ptr); | |
637 | ||
638 | lang_list_init (&input_file_chain); | |
639 | lang_list_init (&lang_output_section_statement); | |
640 | lang_list_init (&file_chain); | |
641 | first_file = lang_add_input_file ((char *) NULL, | |
642 | lang_input_file_is_marker_enum, | |
643 | (char *) NULL); | |
08da4cac KH |
644 | abs_output_section = |
645 | lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME); | |
252b5132 RH |
646 | |
647 | abs_output_section->bfd_section = bfd_abs_section_ptr; | |
648 | ||
649 | } | |
650 | ||
651 | /*---------------------------------------------------------------------- | |
08da4cac KH |
652 | A region is an area of memory declared with the |
653 | MEMORY { name:org=exp, len=exp ... } | |
654 | syntax. | |
252b5132 | 655 | |
08da4cac | 656 | We maintain a list of all the regions here. |
252b5132 | 657 | |
08da4cac KH |
658 | If no regions are specified in the script, then the default is used |
659 | which is created when looked up to be the entire data space. */ | |
252b5132 RH |
660 | |
661 | static lang_memory_region_type *lang_memory_region_list; | |
662 | static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list; | |
663 | ||
664 | lang_memory_region_type * | |
665 | lang_memory_region_lookup (name) | |
5f992e62 | 666 | const char *const name; |
252b5132 RH |
667 | { |
668 | lang_memory_region_type *p; | |
669 | ||
9f88b410 RS |
670 | /* NAME is NULL for LMA memspecs if no region was specified. */ |
671 | if (name == NULL) | |
672 | return NULL; | |
673 | ||
252b5132 RH |
674 | for (p = lang_memory_region_list; |
675 | p != (lang_memory_region_type *) NULL; | |
676 | p = p->next) | |
677 | { | |
678 | if (strcmp (p->name, name) == 0) | |
679 | { | |
680 | return p; | |
681 | } | |
682 | } | |
683 | ||
684 | #if 0 | |
685 | /* This code used to always use the first region in the list as the | |
686 | default region. I changed it to instead use a region | |
687 | encompassing all of memory as the default region. This permits | |
688 | NOLOAD sections to work reasonably without requiring a region. | |
689 | People should specify what region they mean, if they really want | |
690 | a region. */ | |
691 | if (strcmp (name, "*default*") == 0) | |
692 | { | |
693 | if (lang_memory_region_list != (lang_memory_region_type *) NULL) | |
694 | { | |
695 | return lang_memory_region_list; | |
696 | } | |
697 | } | |
698 | #endif | |
699 | ||
700 | { | |
701 | lang_memory_region_type *new = | |
702 | (lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type)); | |
703 | ||
d1b2b2dc | 704 | new->name = xstrdup (name); |
252b5132 RH |
705 | new->next = (lang_memory_region_type *) NULL; |
706 | ||
707 | *lang_memory_region_list_tail = new; | |
708 | lang_memory_region_list_tail = &new->next; | |
709 | new->origin = 0; | |
710 | new->flags = 0; | |
711 | new->not_flags = 0; | |
08da4cac | 712 | new->length = ~(bfd_size_type) 0; |
252b5132 | 713 | new->current = 0; |
b34976b6 | 714 | new->had_full_message = FALSE; |
252b5132 RH |
715 | |
716 | return new; | |
717 | } | |
718 | } | |
719 | ||
5f992e62 | 720 | static lang_memory_region_type * |
252b5132 RH |
721 | lang_memory_default (section) |
722 | asection *section; | |
723 | { | |
724 | lang_memory_region_type *p; | |
725 | ||
726 | flagword sec_flags = section->flags; | |
727 | ||
728 | /* Override SEC_DATA to mean a writable section. */ | |
729 | if ((sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE)) == SEC_ALLOC) | |
730 | sec_flags |= SEC_DATA; | |
731 | ||
732 | for (p = lang_memory_region_list; | |
733 | p != (lang_memory_region_type *) NULL; | |
734 | p = p->next) | |
735 | { | |
736 | if ((p->flags & sec_flags) != 0 | |
737 | && (p->not_flags & sec_flags) == 0) | |
738 | { | |
739 | return p; | |
740 | } | |
741 | } | |
742 | return lang_memory_region_lookup ("*default*"); | |
743 | } | |
744 | ||
745 | lang_output_section_statement_type * | |
746 | lang_output_section_find (name) | |
5f992e62 | 747 | const char *const name; |
252b5132 RH |
748 | { |
749 | lang_statement_union_type *u; | |
750 | lang_output_section_statement_type *lookup; | |
751 | ||
752 | for (u = lang_output_section_statement.head; | |
753 | u != (lang_statement_union_type *) NULL; | |
754 | u = lookup->next) | |
755 | { | |
756 | lookup = &u->output_section_statement; | |
757 | if (strcmp (name, lookup->name) == 0) | |
758 | { | |
759 | return lookup; | |
760 | } | |
761 | } | |
762 | return (lang_output_section_statement_type *) NULL; | |
763 | } | |
764 | ||
765 | lang_output_section_statement_type * | |
766 | lang_output_section_statement_lookup (name) | |
5f992e62 | 767 | const char *const name; |
252b5132 RH |
768 | { |
769 | lang_output_section_statement_type *lookup; | |
770 | ||
771 | lookup = lang_output_section_find (name); | |
772 | if (lookup == (lang_output_section_statement_type *) NULL) | |
773 | { | |
774 | ||
775 | lookup = (lang_output_section_statement_type *) | |
776 | new_stat (lang_output_section_statement, stat_ptr); | |
777 | lookup->region = (lang_memory_region_type *) NULL; | |
562d3460 | 778 | lookup->lma_region = (lang_memory_region_type *) NULL; |
2c382fb6 | 779 | lookup->fill = (fill_type *) 0; |
252b5132 RH |
780 | lookup->block_value = 1; |
781 | lookup->name = name; | |
782 | ||
783 | lookup->next = (lang_statement_union_type *) NULL; | |
784 | lookup->bfd_section = (asection *) NULL; | |
b34976b6 | 785 | lookup->processed = FALSE; |
252b5132 RH |
786 | lookup->sectype = normal_section; |
787 | lookup->addr_tree = (etree_type *) NULL; | |
788 | lang_list_init (&lookup->children); | |
789 | ||
5f992e62 | 790 | lookup->memspec = (const char *) NULL; |
252b5132 RH |
791 | lookup->flags = 0; |
792 | lookup->subsection_alignment = -1; | |
793 | lookup->section_alignment = -1; | |
794 | lookup->load_base = (union etree_union *) NULL; | |
9f88b410 | 795 | lookup->update_dot_tree = NULL; |
252b5132 RH |
796 | lookup->phdrs = NULL; |
797 | ||
798 | lang_statement_append (&lang_output_section_statement, | |
799 | (lang_statement_union_type *) lookup, | |
800 | &lookup->next); | |
801 | } | |
802 | return lookup; | |
803 | } | |
804 | ||
805 | static void | |
806 | lang_map_flags (flag) | |
807 | flagword flag; | |
808 | { | |
809 | if (flag & SEC_ALLOC) | |
810 | minfo ("a"); | |
811 | ||
812 | if (flag & SEC_CODE) | |
813 | minfo ("x"); | |
814 | ||
815 | if (flag & SEC_READONLY) | |
816 | minfo ("r"); | |
817 | ||
818 | if (flag & SEC_DATA) | |
819 | minfo ("w"); | |
820 | ||
821 | if (flag & SEC_LOAD) | |
822 | minfo ("l"); | |
823 | } | |
824 | ||
825 | void | |
826 | lang_map () | |
827 | { | |
828 | lang_memory_region_type *m; | |
829 | ||
830 | minfo (_("\nMemory Configuration\n\n")); | |
831 | fprintf (config.map_file, "%-16s %-18s %-18s %s\n", | |
832 | _("Name"), _("Origin"), _("Length"), _("Attributes")); | |
833 | ||
834 | for (m = lang_memory_region_list; | |
835 | m != (lang_memory_region_type *) NULL; | |
836 | m = m->next) | |
837 | { | |
838 | char buf[100]; | |
839 | int len; | |
840 | ||
841 | fprintf (config.map_file, "%-16s ", m->name); | |
842 | ||
843 | sprintf_vma (buf, m->origin); | |
844 | minfo ("0x%s ", buf); | |
845 | len = strlen (buf); | |
846 | while (len < 16) | |
847 | { | |
848 | print_space (); | |
849 | ++len; | |
850 | } | |
851 | ||
852 | minfo ("0x%V", m->length); | |
853 | if (m->flags || m->not_flags) | |
854 | { | |
855 | #ifndef BFD64 | |
856 | minfo (" "); | |
857 | #endif | |
858 | if (m->flags) | |
859 | { | |
860 | print_space (); | |
861 | lang_map_flags (m->flags); | |
862 | } | |
863 | ||
864 | if (m->not_flags) | |
865 | { | |
866 | minfo (" !"); | |
867 | lang_map_flags (m->not_flags); | |
868 | } | |
869 | } | |
870 | ||
871 | print_nl (); | |
872 | } | |
873 | ||
874 | fprintf (config.map_file, _("\nLinker script and memory map\n\n")); | |
875 | ||
876 | print_statements (); | |
877 | } | |
878 | ||
879 | /* Initialize an output section. */ | |
880 | ||
881 | static void | |
882 | init_os (s) | |
883 | lang_output_section_statement_type *s; | |
884 | { | |
885 | section_userdata_type *new; | |
886 | ||
887 | if (s->bfd_section != NULL) | |
888 | return; | |
889 | ||
890 | if (strcmp (s->name, DISCARD_SECTION_NAME) == 0) | |
6f9efd97 | 891 | einfo (_("%P%F: Illegal use of `%s' section\n"), DISCARD_SECTION_NAME); |
252b5132 RH |
892 | |
893 | new = ((section_userdata_type *) | |
894 | stat_alloc (sizeof (section_userdata_type))); | |
895 | ||
896 | s->bfd_section = bfd_get_section_by_name (output_bfd, s->name); | |
897 | if (s->bfd_section == (asection *) NULL) | |
898 | s->bfd_section = bfd_make_section (output_bfd, s->name); | |
899 | if (s->bfd_section == (asection *) NULL) | |
900 | { | |
901 | einfo (_("%P%F: output format %s cannot represent section called %s\n"), | |
902 | output_bfd->xvec->name, s->name); | |
903 | } | |
904 | s->bfd_section->output_section = s->bfd_section; | |
905 | ||
08da4cac KH |
906 | /* We initialize an output sections output offset to minus its own |
907 | vma to allow us to output a section through itself. */ | |
252b5132 RH |
908 | s->bfd_section->output_offset = 0; |
909 | get_userdata (s->bfd_section) = (PTR) new; | |
910 | ||
911 | /* If there is a base address, make sure that any sections it might | |
912 | mention are initialized. */ | |
913 | if (s->addr_tree != NULL) | |
914 | exp_init_os (s->addr_tree); | |
18794b0c AM |
915 | |
916 | if (s->load_base != NULL) | |
917 | exp_init_os (s->load_base); | |
252b5132 RH |
918 | } |
919 | ||
920 | /* Make sure that all output sections mentioned in an expression are | |
921 | initialized. */ | |
922 | ||
923 | static void | |
924 | exp_init_os (exp) | |
925 | etree_type *exp; | |
926 | { | |
927 | switch (exp->type.node_class) | |
928 | { | |
929 | case etree_assign: | |
930 | exp_init_os (exp->assign.src); | |
931 | break; | |
932 | ||
933 | case etree_binary: | |
934 | exp_init_os (exp->binary.lhs); | |
935 | exp_init_os (exp->binary.rhs); | |
936 | break; | |
937 | ||
938 | case etree_trinary: | |
939 | exp_init_os (exp->trinary.cond); | |
940 | exp_init_os (exp->trinary.lhs); | |
941 | exp_init_os (exp->trinary.rhs); | |
942 | break; | |
943 | ||
944 | case etree_unary: | |
945 | exp_init_os (exp->unary.child); | |
946 | break; | |
947 | ||
948 | case etree_name: | |
949 | switch (exp->type.node_code) | |
950 | { | |
951 | case ADDR: | |
952 | case LOADADDR: | |
953 | case SIZEOF: | |
954 | { | |
955 | lang_output_section_statement_type *os; | |
956 | ||
957 | os = lang_output_section_find (exp->name.name); | |
958 | if (os != NULL && os->bfd_section == NULL) | |
959 | init_os (os); | |
960 | } | |
961 | } | |
962 | break; | |
963 | ||
964 | default: | |
965 | break; | |
966 | } | |
967 | } | |
9503fd87 | 968 | \f |
252b5132 | 969 | /* Sections marked with the SEC_LINK_ONCE flag should only be linked |
9503fd87 ILT |
970 | once into the output. This routine checks each section, and |
971 | arrange to discard it if a section of the same name has already | |
bb8fe706 ILT |
972 | been linked. If the section has COMDAT information, then it uses |
973 | that to decide whether the section should be included. This code | |
974 | assumes that all relevant sections have the SEC_LINK_ONCE flag set; | |
9503fd87 ILT |
975 | that is, it does not depend solely upon the section name. |
976 | section_already_linked is called via bfd_map_over_sections. */ | |
977 | ||
978 | /* This is the shape of the elements inside the already_linked hash | |
979 | table. It maps a name onto a list of already_linked elements with | |
980 | the same name. It's possible to get more than one element in a | |
981 | list if the COMDAT sections have different names. */ | |
982 | ||
5f992e62 | 983 | struct already_linked_hash_entry |
9503fd87 ILT |
984 | { |
985 | struct bfd_hash_entry root; | |
986 | struct already_linked *entry; | |
987 | }; | |
988 | ||
5f992e62 | 989 | struct already_linked |
9503fd87 ILT |
990 | { |
991 | struct already_linked *next; | |
992 | asection *sec; | |
993 | }; | |
994 | ||
995 | /* The hash table. */ | |
996 | ||
997 | static struct bfd_hash_table already_linked_table; | |
252b5132 | 998 | |
252b5132 RH |
999 | static void |
1000 | section_already_linked (abfd, sec, data) | |
1001 | bfd *abfd; | |
1002 | asection *sec; | |
1003 | PTR data; | |
1004 | { | |
1005 | lang_input_statement_type *entry = (lang_input_statement_type *) data; | |
252b5132 RH |
1006 | flagword flags; |
1007 | const char *name; | |
9503fd87 ILT |
1008 | struct already_linked *l; |
1009 | struct already_linked_hash_entry *already_linked_list; | |
252b5132 RH |
1010 | |
1011 | /* If we are only reading symbols from this object, then we want to | |
1012 | discard all sections. */ | |
1013 | if (entry->just_syms_flag) | |
1014 | { | |
c2c01aa7 | 1015 | bfd_link_just_syms (sec, &link_info); |
252b5132 RH |
1016 | return; |
1017 | } | |
1018 | ||
1019 | flags = bfd_get_section_flags (abfd, sec); | |
1020 | ||
1021 | if ((flags & SEC_LINK_ONCE) == 0) | |
1022 | return; | |
1023 | ||
577a0623 | 1024 | /* FIXME: When doing a relocatable link, we may have trouble |
e361c369 ILT |
1025 | copying relocations in other sections that refer to local symbols |
1026 | in the section being discarded. Those relocations will have to | |
1027 | be converted somehow; as of this writing I'm not sure that any of | |
1028 | the backends handle that correctly. | |
1029 | ||
1030 | It is tempting to instead not discard link once sections when | |
577a0623 | 1031 | doing a relocatable link (technically, they should be discarded |
e361c369 ILT |
1032 | whenever we are building constructors). However, that fails, |
1033 | because the linker winds up combining all the link once sections | |
1034 | into a single large link once section, which defeats the purpose | |
1035 | of having link once sections in the first place. | |
1036 | ||
577a0623 | 1037 | Also, not merging link once sections in a relocatable link |
9ad85d9b | 1038 | causes trouble for MIPS ELF, which relies on link once semantics |
e361c369 ILT |
1039 | to handle the .reginfo section correctly. */ |
1040 | ||
252b5132 RH |
1041 | name = bfd_get_section_name (abfd, sec); |
1042 | ||
5f992e62 | 1043 | already_linked_list = |
9503fd87 | 1044 | ((struct already_linked_hash_entry *) |
b34976b6 | 1045 | bfd_hash_lookup (&already_linked_table, name, TRUE, FALSE)); |
9503fd87 | 1046 | |
08da4cac | 1047 | for (l = already_linked_list->entry; l != NULL; l = l->next) |
252b5132 | 1048 | { |
9503fd87 ILT |
1049 | if (sec->comdat == NULL |
1050 | || l->sec->comdat == NULL | |
1051 | || strcmp (sec->comdat->name, l->sec->comdat->name) == 0) | |
252b5132 RH |
1052 | { |
1053 | /* The section has already been linked. See if we should | |
1054 | issue a warning. */ | |
1055 | switch (flags & SEC_LINK_DUPLICATES) | |
1056 | { | |
1057 | default: | |
1058 | abort (); | |
1059 | ||
1060 | case SEC_LINK_DUPLICATES_DISCARD: | |
1061 | break; | |
1062 | ||
1063 | case SEC_LINK_DUPLICATES_ONE_ONLY: | |
bb8fe706 ILT |
1064 | if (sec->comdat == NULL) |
1065 | einfo (_("%P: %B: warning: ignoring duplicate section `%s'\n"), | |
1066 | abfd, name); | |
1067 | else | |
1068 | einfo (_("%P: %B: warning: ignoring duplicate `%s' section symbol `%s'\n"), | |
1069 | abfd, name, sec->comdat->name); | |
252b5132 RH |
1070 | break; |
1071 | ||
1072 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: | |
1073 | /* FIXME: We should really dig out the contents of both | |
1074 | sections and memcmp them. The COFF/PE spec says that | |
1075 | the Microsoft linker does not implement this | |
1076 | correctly, so I'm not going to bother doing it | |
1077 | either. */ | |
1078 | /* Fall through. */ | |
1079 | case SEC_LINK_DUPLICATES_SAME_SIZE: | |
1080 | if (bfd_section_size (abfd, sec) | |
1081 | != bfd_section_size (l->sec->owner, l->sec)) | |
1082 | einfo (_("%P: %B: warning: duplicate section `%s' has different size\n"), | |
1083 | abfd, name); | |
1084 | break; | |
1085 | } | |
1086 | ||
39dcfe18 AM |
1087 | /* Set the output_section field so that lang_add_section |
1088 | does not create a lang_input_section structure for this | |
862517b6 | 1089 | section. */ |
252b5132 RH |
1090 | sec->output_section = bfd_abs_section_ptr; |
1091 | ||
9ad85d9b AM |
1092 | if (flags & SEC_GROUP) |
1093 | bfd_discard_group (abfd, sec); | |
1094 | ||
252b5132 RH |
1095 | return; |
1096 | } | |
1097 | } | |
1098 | ||
9503fd87 ILT |
1099 | /* This is the first section with this name. Record it. Allocate |
1100 | the memory from the same obstack as the hash table is kept in. */ | |
1101 | ||
5f992e62 | 1102 | l = ((struct already_linked *) |
9503fd87 | 1103 | bfd_hash_allocate (&already_linked_table, sizeof *l)); |
252b5132 | 1104 | |
252b5132 | 1105 | l->sec = sec; |
9503fd87 ILT |
1106 | l->next = already_linked_list->entry; |
1107 | already_linked_list->entry = l; | |
1108 | } | |
1109 | ||
1110 | /* Support routines for the hash table used by section_already_linked, | |
1111 | initialize the table, fill in an entry and remove the table. */ | |
1112 | ||
1113 | static struct bfd_hash_entry * | |
1114 | already_linked_newfunc (entry, table, string) | |
1115 | struct bfd_hash_entry *entry ATTRIBUTE_UNUSED; | |
1116 | struct bfd_hash_table *table; | |
1117 | const char *string ATTRIBUTE_UNUSED; | |
1118 | { | |
5f992e62 | 1119 | struct already_linked_hash_entry *ret = |
9503fd87 ILT |
1120 | bfd_hash_allocate (table, sizeof (struct already_linked_hash_entry)); |
1121 | ||
1122 | ret->entry = NULL; | |
1123 | ||
1124 | return (struct bfd_hash_entry *) ret; | |
1125 | } | |
1126 | ||
1127 | static void | |
1128 | already_linked_table_init () | |
1129 | { | |
1130 | if (! bfd_hash_table_init_n (&already_linked_table, | |
1131 | already_linked_newfunc, | |
1132 | 42)) | |
1133 | einfo (_("%P%F: Failed to create hash table\n")); | |
1134 | } | |
1135 | ||
1136 | static void | |
1137 | already_linked_table_free () | |
1138 | { | |
1139 | bfd_hash_table_free (&already_linked_table); | |
252b5132 RH |
1140 | } |
1141 | \f | |
1142 | /* The wild routines. | |
1143 | ||
1144 | These expand statements like *(.text) and foo.o to a list of | |
1145 | explicit actions, like foo.o(.text), bar.o(.text) and | |
1146 | foo.o(.text, .data). */ | |
1147 | ||
b34976b6 | 1148 | /* Return TRUE if the PATTERN argument is a wildcard pattern. |
252b5132 RH |
1149 | Although backslashes are treated specially if a pattern contains |
1150 | wildcards, we do not consider the mere presence of a backslash to | |
ca0c1d3e | 1151 | be enough to cause the pattern to be treated as a wildcard. |
252b5132 RH |
1152 | That lets us handle DOS filenames more naturally. */ |
1153 | ||
b34976b6 | 1154 | static bfd_boolean |
252b5132 RH |
1155 | wildcardp (pattern) |
1156 | const char *pattern; | |
1157 | { | |
1158 | const char *s; | |
1159 | ||
1160 | for (s = pattern; *s != '\0'; ++s) | |
1161 | if (*s == '?' | |
1162 | || *s == '*' | |
1163 | || *s == '[') | |
b34976b6 AM |
1164 | return TRUE; |
1165 | return FALSE; | |
252b5132 RH |
1166 | } |
1167 | ||
1168 | /* Add SECTION to the output section OUTPUT. Do this by creating a | |
1169 | lang_input_section statement which is placed at PTR. FILE is the | |
1170 | input file which holds SECTION. */ | |
1171 | ||
1172 | void | |
39dcfe18 | 1173 | lang_add_section (ptr, section, output, file) |
252b5132 RH |
1174 | lang_statement_list_type *ptr; |
1175 | asection *section; | |
1176 | lang_output_section_statement_type *output; | |
1177 | lang_input_statement_type *file; | |
1178 | { | |
1179 | flagword flags; | |
b34976b6 | 1180 | bfd_boolean discard; |
252b5132 RH |
1181 | |
1182 | flags = bfd_get_section_flags (section->owner, section); | |
1183 | ||
b34976b6 | 1184 | discard = FALSE; |
252b5132 | 1185 | |
c4c41219 AM |
1186 | /* Discard sections marked with SEC_EXCLUDE if we are doing a final |
1187 | link. Discard debugging sections marked with SEC_EXCLUDE on a | |
1188 | relocatable link too. */ | |
1189 | if ((flags & SEC_EXCLUDE) != 0 | |
1190 | && ((flags & SEC_DEBUGGING) != 0 || !link_info.relocateable)) | |
b34976b6 | 1191 | discard = TRUE; |
252b5132 RH |
1192 | |
1193 | /* Discard input sections which are assigned to a section named | |
1194 | DISCARD_SECTION_NAME. */ | |
1195 | if (strcmp (output->name, DISCARD_SECTION_NAME) == 0) | |
b34976b6 | 1196 | discard = TRUE; |
252b5132 RH |
1197 | |
1198 | /* Discard debugging sections if we are stripping debugging | |
1199 | information. */ | |
1200 | if ((link_info.strip == strip_debugger || link_info.strip == strip_all) | |
1201 | && (flags & SEC_DEBUGGING) != 0) | |
b34976b6 | 1202 | discard = TRUE; |
252b5132 RH |
1203 | |
1204 | if (discard) | |
1205 | { | |
1206 | if (section->output_section == NULL) | |
1207 | { | |
1208 | /* This prevents future calls from assigning this section. */ | |
1209 | section->output_section = bfd_abs_section_ptr; | |
1210 | } | |
1211 | return; | |
1212 | } | |
1213 | ||
1214 | if (section->output_section == NULL) | |
1215 | { | |
b34976b6 | 1216 | bfd_boolean first; |
252b5132 RH |
1217 | lang_input_section_type *new; |
1218 | flagword flags; | |
1219 | ||
1220 | if (output->bfd_section == NULL) | |
d1778b88 AM |
1221 | init_os (output); |
1222 | ||
1223 | first = ! output->bfd_section->linker_has_input; | |
1224 | output->bfd_section->linker_has_input = 1; | |
252b5132 | 1225 | |
08da4cac | 1226 | /* Add a section reference to the list. */ |
252b5132 RH |
1227 | new = new_stat (lang_input_section, ptr); |
1228 | ||
1229 | new->section = section; | |
1230 | new->ifile = file; | |
1231 | section->output_section = output->bfd_section; | |
1232 | ||
1233 | flags = section->flags; | |
1234 | ||
1235 | /* We don't copy the SEC_NEVER_LOAD flag from an input section | |
1236 | to an output section, because we want to be able to include a | |
1237 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
1238 | section (I don't know why we want to do this, but we do). | |
1239 | build_link_order in ldwrite.c handles this case by turning | |
1240 | the embedded SEC_NEVER_LOAD section into a fill. */ | |
1241 | ||
1242 | flags &= ~ SEC_NEVER_LOAD; | |
1243 | ||
1244 | /* If final link, don't copy the SEC_LINK_ONCE flags, they've | |
1245 | already been processed. One reason to do this is that on pe | |
1246 | format targets, .text$foo sections go into .text and it's odd | |
1247 | to see .text with SEC_LINK_ONCE set. */ | |
1248 | ||
1249 | if (! link_info.relocateable) | |
1250 | flags &= ~ (SEC_LINK_ONCE | SEC_LINK_DUPLICATES); | |
1251 | ||
1252 | /* If this is not the first input section, and the SEC_READONLY | |
1253 | flag is not currently set, then don't set it just because the | |
1254 | input section has it set. */ | |
1255 | ||
1256 | if (! first && (section->output_section->flags & SEC_READONLY) == 0) | |
1257 | flags &= ~ SEC_READONLY; | |
1258 | ||
f5fa8ca2 JJ |
1259 | /* Keep SEC_MERGE and SEC_STRINGS only if they are the same. */ |
1260 | if (! first | |
1261 | && ((section->output_section->flags & (SEC_MERGE | SEC_STRINGS)) | |
1262 | != (flags & (SEC_MERGE | SEC_STRINGS)) | |
1263 | || ((flags & SEC_MERGE) | |
1264 | && section->output_section->entsize != section->entsize))) | |
1265 | { | |
1266 | section->output_section->flags &= ~ (SEC_MERGE | SEC_STRINGS); | |
1267 | flags &= ~ (SEC_MERGE | SEC_STRINGS); | |
1268 | } | |
1269 | ||
13ae64f3 | 1270 | /* For now make .tbss normal section. */ |
704afa60 | 1271 | if ((flags & SEC_THREAD_LOCAL) && ! link_info.relocateable) |
13ae64f3 JJ |
1272 | flags |= SEC_LOAD; |
1273 | ||
252b5132 RH |
1274 | section->output_section->flags |= flags; |
1275 | ||
f5fa8ca2 JJ |
1276 | if (flags & SEC_MERGE) |
1277 | section->output_section->entsize = section->entsize; | |
1278 | ||
252b5132 RH |
1279 | /* If SEC_READONLY is not set in the input section, then clear |
1280 | it from the output section. */ | |
1281 | if ((section->flags & SEC_READONLY) == 0) | |
1282 | section->output_section->flags &= ~SEC_READONLY; | |
1283 | ||
1284 | switch (output->sectype) | |
1285 | { | |
1286 | case normal_section: | |
1287 | break; | |
1288 | case dsect_section: | |
1289 | case copy_section: | |
1290 | case info_section: | |
1291 | case overlay_section: | |
1292 | output->bfd_section->flags &= ~SEC_ALLOC; | |
1293 | break; | |
1294 | case noload_section: | |
1295 | output->bfd_section->flags &= ~SEC_LOAD; | |
1296 | output->bfd_section->flags |= SEC_NEVER_LOAD; | |
1297 | break; | |
1298 | } | |
1299 | ||
667f5177 ILT |
1300 | /* Copy over SEC_SMALL_DATA. */ |
1301 | if (section->flags & SEC_SMALL_DATA) | |
1302 | section->output_section->flags |= SEC_SMALL_DATA; | |
9e41f973 | 1303 | |
252b5132 RH |
1304 | if (section->alignment_power > output->bfd_section->alignment_power) |
1305 | output->bfd_section->alignment_power = section->alignment_power; | |
1306 | ||
396a2467 | 1307 | /* If supplied an alignment, then force it. */ |
252b5132 RH |
1308 | if (output->section_alignment != -1) |
1309 | output->bfd_section->alignment_power = output->section_alignment; | |
74459f0e TW |
1310 | |
1311 | if (section->flags & SEC_BLOCK) | |
08da4cac KH |
1312 | { |
1313 | section->output_section->flags |= SEC_BLOCK; | |
1314 | /* FIXME: This value should really be obtained from the bfd... */ | |
1315 | output->block_value = 128; | |
1316 | } | |
252b5132 RH |
1317 | } |
1318 | } | |
1319 | ||
1320 | /* Handle wildcard sorting. This returns the lang_input_section which | |
1321 | should follow the one we are going to create for SECTION and FILE, | |
1322 | based on the sorting requirements of WILD. It returns NULL if the | |
1323 | new section should just go at the end of the current list. */ | |
1324 | ||
1325 | static lang_statement_union_type * | |
b6bf44ba | 1326 | wild_sort (wild, sec, file, section) |
252b5132 | 1327 | lang_wild_statement_type *wild; |
b6bf44ba | 1328 | struct wildcard_list *sec; |
252b5132 RH |
1329 | lang_input_statement_type *file; |
1330 | asection *section; | |
1331 | { | |
1332 | const char *section_name; | |
1333 | lang_statement_union_type *l; | |
1334 | ||
b6bf44ba | 1335 | if (!wild->filenames_sorted && (sec == NULL || !sec->spec.sorted)) |
252b5132 RH |
1336 | return NULL; |
1337 | ||
1338 | section_name = bfd_get_section_name (file->the_bfd, section); | |
bba1a0c0 | 1339 | for (l = wild->children.head; l != NULL; l = l->header.next) |
252b5132 RH |
1340 | { |
1341 | lang_input_section_type *ls; | |
1342 | ||
1343 | if (l->header.type != lang_input_section_enum) | |
1344 | continue; | |
1345 | ls = &l->input_section; | |
1346 | ||
1347 | /* Sorting by filename takes precedence over sorting by section | |
1348 | name. */ | |
1349 | ||
1350 | if (wild->filenames_sorted) | |
1351 | { | |
1352 | const char *fn, *ln; | |
b34976b6 | 1353 | bfd_boolean fa, la; |
252b5132 RH |
1354 | int i; |
1355 | ||
1356 | /* The PE support for the .idata section as generated by | |
1357 | dlltool assumes that files will be sorted by the name of | |
1358 | the archive and then the name of the file within the | |
1359 | archive. */ | |
1360 | ||
1361 | if (file->the_bfd != NULL | |
1362 | && bfd_my_archive (file->the_bfd) != NULL) | |
1363 | { | |
1364 | fn = bfd_get_filename (bfd_my_archive (file->the_bfd)); | |
b34976b6 | 1365 | fa = TRUE; |
252b5132 RH |
1366 | } |
1367 | else | |
1368 | { | |
1369 | fn = file->filename; | |
b34976b6 | 1370 | fa = FALSE; |
252b5132 RH |
1371 | } |
1372 | ||
1373 | if (ls->ifile->the_bfd != NULL | |
1374 | && bfd_my_archive (ls->ifile->the_bfd) != NULL) | |
1375 | { | |
1376 | ln = bfd_get_filename (bfd_my_archive (ls->ifile->the_bfd)); | |
b34976b6 | 1377 | la = TRUE; |
252b5132 RH |
1378 | } |
1379 | else | |
1380 | { | |
1381 | ln = ls->ifile->filename; | |
b34976b6 | 1382 | la = FALSE; |
252b5132 RH |
1383 | } |
1384 | ||
1385 | i = strcmp (fn, ln); | |
1386 | if (i > 0) | |
1387 | continue; | |
1388 | else if (i < 0) | |
1389 | break; | |
1390 | ||
1391 | if (fa || la) | |
1392 | { | |
1393 | if (fa) | |
1394 | fn = file->filename; | |
1395 | if (la) | |
1396 | ln = ls->ifile->filename; | |
1397 | ||
1398 | i = strcmp (fn, ln); | |
1399 | if (i > 0) | |
1400 | continue; | |
1401 | else if (i < 0) | |
1402 | break; | |
1403 | } | |
1404 | } | |
1405 | ||
1406 | /* Here either the files are not sorted by name, or we are | |
1407 | looking at the sections for this file. */ | |
1408 | ||
b6bf44ba | 1409 | if (sec != NULL && sec->spec.sorted) |
252b5132 RH |
1410 | { |
1411 | if (strcmp (section_name, | |
1412 | bfd_get_section_name (ls->ifile->the_bfd, | |
1413 | ls->section)) | |
1414 | < 0) | |
1415 | break; | |
1416 | } | |
1417 | } | |
1418 | ||
1419 | return l; | |
1420 | } | |
1421 | ||
1422 | /* Expand a wild statement for a particular FILE. SECTION may be | |
1423 | NULL, in which case it is a wild card. */ | |
1424 | ||
1425 | static void | |
b6bf44ba | 1426 | output_section_callback (ptr, sec, section, file, output) |
252b5132 | 1427 | lang_wild_statement_type *ptr; |
b6bf44ba | 1428 | struct wildcard_list *sec; |
4dec4d4e | 1429 | asection *section; |
252b5132 | 1430 | lang_input_statement_type *file; |
5f992e62 | 1431 | PTR output; |
4dec4d4e RH |
1432 | { |
1433 | lang_statement_union_type *before; | |
5f992e62 | 1434 | |
b6bf44ba AM |
1435 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
1436 | if (unique_section_p (bfd_get_section_name (file->the_bfd, section))) | |
1437 | return; | |
1438 | ||
4dec4d4e RH |
1439 | /* If the wild pattern was marked KEEP, the member sections |
1440 | should be as well. */ | |
1441 | if (ptr->keep_sections) | |
1442 | section->flags |= SEC_KEEP; | |
5f992e62 | 1443 | |
b6bf44ba | 1444 | before = wild_sort (ptr, sec, file, section); |
5f992e62 | 1445 | |
4dec4d4e RH |
1446 | /* Here BEFORE points to the lang_input_section which |
1447 | should follow the one we are about to add. If BEFORE | |
1448 | is NULL, then the section should just go at the end | |
1449 | of the current list. */ | |
5f992e62 | 1450 | |
4dec4d4e | 1451 | if (before == NULL) |
39dcfe18 AM |
1452 | lang_add_section (&ptr->children, section, |
1453 | (lang_output_section_statement_type *) output, | |
1454 | file); | |
4dec4d4e | 1455 | else |
252b5132 | 1456 | { |
4dec4d4e RH |
1457 | lang_statement_list_type list; |
1458 | lang_statement_union_type **pp; | |
5f992e62 | 1459 | |
4dec4d4e | 1460 | lang_list_init (&list); |
39dcfe18 AM |
1461 | lang_add_section (&list, section, |
1462 | (lang_output_section_statement_type *) output, | |
1463 | file); | |
5f992e62 | 1464 | |
4dec4d4e RH |
1465 | /* If we are discarding the section, LIST.HEAD will |
1466 | be NULL. */ | |
1467 | if (list.head != NULL) | |
252b5132 | 1468 | { |
bba1a0c0 | 1469 | ASSERT (list.head->header.next == NULL); |
5f992e62 | 1470 | |
4dec4d4e RH |
1471 | for (pp = &ptr->children.head; |
1472 | *pp != before; | |
bba1a0c0 | 1473 | pp = &(*pp)->header.next) |
4dec4d4e | 1474 | ASSERT (*pp != NULL); |
5f992e62 | 1475 | |
bba1a0c0 | 1476 | list.head->header.next = *pp; |
4dec4d4e | 1477 | *pp = list.head; |
252b5132 RH |
1478 | } |
1479 | } | |
1480 | } | |
1481 | ||
1482 | /* This is passed a file name which must have been seen already and | |
1483 | added to the statement tree. We will see if it has been opened | |
1484 | already and had its symbols read. If not then we'll read it. */ | |
1485 | ||
1486 | static lang_input_statement_type * | |
1487 | lookup_name (name) | |
1488 | const char *name; | |
1489 | { | |
1490 | lang_input_statement_type *search; | |
1491 | ||
1492 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
1493 | search != (lang_input_statement_type *) NULL; | |
1494 | search = (lang_input_statement_type *) search->next_real_file) | |
1495 | { | |
1496 | if (search->filename == (char *) NULL && name == (char *) NULL) | |
1497 | return search; | |
1498 | if (search->filename != (char *) NULL | |
1499 | && name != (char *) NULL | |
1500 | && strcmp (search->filename, name) == 0) | |
1501 | break; | |
1502 | } | |
1503 | ||
1504 | if (search == (lang_input_statement_type *) NULL) | |
1505 | search = new_afile (name, lang_input_file_is_file_enum, default_target, | |
b34976b6 | 1506 | FALSE); |
252b5132 RH |
1507 | |
1508 | /* If we have already added this file, or this file is not real | |
1509 | (FIXME: can that ever actually happen?) or the name is NULL | |
1510 | (FIXME: can that ever actually happen?) don't add this file. */ | |
1511 | if (search->loaded | |
1512 | || ! search->real | |
1513 | || search->filename == (const char *) NULL) | |
1514 | return search; | |
1515 | ||
6770ec8c NC |
1516 | if (! load_symbols (search, (lang_statement_list_type *) NULL)) |
1517 | return NULL; | |
252b5132 RH |
1518 | |
1519 | return search; | |
1520 | } | |
1521 | ||
1522 | /* Get the symbols for an input file. */ | |
1523 | ||
b34976b6 | 1524 | static bfd_boolean |
252b5132 RH |
1525 | load_symbols (entry, place) |
1526 | lang_input_statement_type *entry; | |
1527 | lang_statement_list_type *place; | |
1528 | { | |
1529 | char **matching; | |
1530 | ||
1531 | if (entry->loaded) | |
b34976b6 | 1532 | return TRUE; |
252b5132 RH |
1533 | |
1534 | ldfile_open_file (entry); | |
1535 | ||
1536 | if (! bfd_check_format (entry->the_bfd, bfd_archive) | |
1537 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
1538 | { | |
1539 | bfd_error_type err; | |
1540 | lang_statement_list_type *hold; | |
b34976b6 | 1541 | bfd_boolean bad_load = TRUE; |
b7a26f91 | 1542 | |
252b5132 | 1543 | err = bfd_get_error (); |
884fb58e NC |
1544 | |
1545 | /* See if the emulation has some special knowledge. */ | |
1546 | if (ldemul_unrecognized_file (entry)) | |
b34976b6 | 1547 | return TRUE; |
884fb58e | 1548 | |
252b5132 RH |
1549 | if (err == bfd_error_file_ambiguously_recognized) |
1550 | { | |
1551 | char **p; | |
1552 | ||
1553 | einfo (_("%B: file not recognized: %E\n"), entry->the_bfd); | |
1554 | einfo (_("%B: matching formats:"), entry->the_bfd); | |
1555 | for (p = matching; *p != NULL; p++) | |
1556 | einfo (" %s", *p); | |
1557 | einfo ("%F\n"); | |
1558 | } | |
1559 | else if (err != bfd_error_file_not_recognized | |
1560 | || place == NULL) | |
6770ec8c NC |
1561 | einfo (_("%F%B: file not recognized: %E\n"), entry->the_bfd); |
1562 | else | |
b34976b6 | 1563 | bad_load = FALSE; |
b7a26f91 | 1564 | |
252b5132 RH |
1565 | bfd_close (entry->the_bfd); |
1566 | entry->the_bfd = NULL; | |
1567 | ||
252b5132 | 1568 | /* Try to interpret the file as a linker script. */ |
252b5132 RH |
1569 | ldfile_open_command_file (entry->filename); |
1570 | ||
1571 | hold = stat_ptr; | |
1572 | stat_ptr = place; | |
1573 | ||
b34976b6 | 1574 | ldfile_assumed_script = TRUE; |
252b5132 RH |
1575 | parser_input = input_script; |
1576 | yyparse (); | |
b34976b6 | 1577 | ldfile_assumed_script = FALSE; |
252b5132 RH |
1578 | |
1579 | stat_ptr = hold; | |
1580 | ||
6770ec8c | 1581 | return ! bad_load; |
252b5132 RH |
1582 | } |
1583 | ||
1584 | if (ldemul_recognized_file (entry)) | |
b34976b6 | 1585 | return TRUE; |
252b5132 RH |
1586 | |
1587 | /* We don't call ldlang_add_file for an archive. Instead, the | |
1588 | add_symbols entry point will call ldlang_add_file, via the | |
1589 | add_archive_element callback, for each element of the archive | |
1590 | which is used. */ | |
1591 | switch (bfd_get_format (entry->the_bfd)) | |
1592 | { | |
1593 | default: | |
1594 | break; | |
1595 | ||
1596 | case bfd_object: | |
1597 | ldlang_add_file (entry); | |
1598 | if (trace_files || trace_file_tries) | |
1599 | info_msg ("%I\n", entry); | |
1600 | break; | |
1601 | ||
1602 | case bfd_archive: | |
1603 | if (entry->whole_archive) | |
1604 | { | |
b7a26f91 | 1605 | bfd *member = NULL; |
b34976b6 | 1606 | bfd_boolean loaded = TRUE; |
6770ec8c NC |
1607 | |
1608 | for (;;) | |
252b5132 | 1609 | { |
6770ec8c NC |
1610 | member = bfd_openr_next_archived_file (entry->the_bfd, member); |
1611 | ||
1612 | if (member == NULL) | |
1613 | break; | |
b7a26f91 | 1614 | |
252b5132 | 1615 | if (! bfd_check_format (member, bfd_object)) |
6770ec8c NC |
1616 | { |
1617 | einfo (_("%F%B: member %B in archive is not an object\n"), | |
1618 | entry->the_bfd, member); | |
b34976b6 | 1619 | loaded = FALSE; |
6770ec8c NC |
1620 | } |
1621 | ||
252b5132 RH |
1622 | if (! ((*link_info.callbacks->add_archive_element) |
1623 | (&link_info, member, "--whole-archive"))) | |
1624 | abort (); | |
6770ec8c | 1625 | |
252b5132 | 1626 | if (! bfd_link_add_symbols (member, &link_info)) |
6770ec8c NC |
1627 | { |
1628 | einfo (_("%F%B: could not read symbols: %E\n"), member); | |
b34976b6 | 1629 | loaded = FALSE; |
6770ec8c | 1630 | } |
252b5132 RH |
1631 | } |
1632 | ||
6770ec8c NC |
1633 | entry->loaded = loaded; |
1634 | return loaded; | |
252b5132 | 1635 | } |
6770ec8c | 1636 | break; |
252b5132 RH |
1637 | } |
1638 | ||
03bdc404 | 1639 | if (bfd_link_add_symbols (entry->the_bfd, &link_info)) |
b34976b6 | 1640 | entry->loaded = TRUE; |
6770ec8c | 1641 | else |
252b5132 RH |
1642 | einfo (_("%F%B: could not read symbols: %E\n"), entry->the_bfd); |
1643 | ||
6770ec8c | 1644 | return entry->loaded; |
252b5132 RH |
1645 | } |
1646 | ||
b6bf44ba AM |
1647 | /* Handle a wild statement. S->FILENAME or S->SECTION_LIST or both |
1648 | may be NULL, indicating that it is a wildcard. Separate | |
1649 | lang_input_section statements are created for each part of the | |
1650 | expansion; they are added after the wild statement S. OUTPUT is | |
1651 | the output section. */ | |
252b5132 RH |
1652 | |
1653 | static void | |
b6bf44ba | 1654 | wild (s, target, output) |
252b5132 | 1655 | lang_wild_statement_type *s; |
87f2a346 | 1656 | const char *target ATTRIBUTE_UNUSED; |
252b5132 RH |
1657 | lang_output_section_statement_type *output; |
1658 | { | |
b6bf44ba | 1659 | struct wildcard_list *sec; |
252b5132 | 1660 | |
b6bf44ba AM |
1661 | walk_wild (s, output_section_callback, (PTR) output); |
1662 | ||
1663 | for (sec = s->section_list; sec != NULL; sec = sec->next) | |
252b5132 | 1664 | { |
b6bf44ba AM |
1665 | if (default_common_section != NULL) |
1666 | break; | |
1667 | if (sec->spec.name != NULL && strcmp (sec->spec.name, "COMMON") == 0) | |
1668 | { | |
1669 | /* Remember the section that common is going to in case we | |
b7a26f91 | 1670 | later get something which doesn't know where to put it. */ |
b6bf44ba AM |
1671 | default_common_section = output; |
1672 | } | |
252b5132 RH |
1673 | } |
1674 | } | |
1675 | ||
b34976b6 | 1676 | /* Return TRUE iff target is the sought target. */ |
08da4cac | 1677 | |
e50d8076 NC |
1678 | static int |
1679 | get_target (target, data) | |
08da4cac | 1680 | const bfd_target *target; |
5f992e62 | 1681 | PTR data; |
e50d8076 | 1682 | { |
08da4cac | 1683 | const char *sought = (const char *) data; |
5f992e62 | 1684 | |
e50d8076 NC |
1685 | return strcmp (target->name, sought) == 0; |
1686 | } | |
1687 | ||
1688 | /* Like strcpy() but convert to lower case as well. */ | |
08da4cac | 1689 | |
e50d8076 NC |
1690 | static void |
1691 | stricpy (dest, src) | |
08da4cac KH |
1692 | char *dest; |
1693 | char *src; | |
e50d8076 NC |
1694 | { |
1695 | char c; | |
5f992e62 | 1696 | |
08da4cac | 1697 | while ((c = *src++) != 0) |
3882b010 | 1698 | *dest++ = TOLOWER (c); |
e50d8076 | 1699 | |
08da4cac | 1700 | *dest = 0; |
e50d8076 NC |
1701 | } |
1702 | ||
396a2467 | 1703 | /* Remove the first occurrence of needle (if any) in haystack |
e50d8076 | 1704 | from haystack. */ |
08da4cac | 1705 | |
e50d8076 NC |
1706 | static void |
1707 | strcut (haystack, needle) | |
08da4cac KH |
1708 | char *haystack; |
1709 | char *needle; | |
e50d8076 NC |
1710 | { |
1711 | haystack = strstr (haystack, needle); | |
5f992e62 | 1712 | |
e50d8076 NC |
1713 | if (haystack) |
1714 | { | |
08da4cac | 1715 | char *src; |
e50d8076 | 1716 | |
08da4cac KH |
1717 | for (src = haystack + strlen (needle); *src;) |
1718 | *haystack++ = *src++; | |
5f992e62 | 1719 | |
08da4cac | 1720 | *haystack = 0; |
e50d8076 NC |
1721 | } |
1722 | } | |
1723 | ||
1724 | /* Compare two target format name strings. | |
1725 | Return a value indicating how "similar" they are. */ | |
08da4cac | 1726 | |
e50d8076 NC |
1727 | static int |
1728 | name_compare (first, second) | |
08da4cac KH |
1729 | char *first; |
1730 | char *second; | |
e50d8076 | 1731 | { |
08da4cac KH |
1732 | char *copy1; |
1733 | char *copy2; | |
1734 | int result; | |
5f992e62 | 1735 | |
e50d8076 NC |
1736 | copy1 = xmalloc (strlen (first) + 1); |
1737 | copy2 = xmalloc (strlen (second) + 1); | |
1738 | ||
1739 | /* Convert the names to lower case. */ | |
1740 | stricpy (copy1, first); | |
1741 | stricpy (copy2, second); | |
1742 | ||
1743 | /* Remove and endian strings from the name. */ | |
1744 | strcut (copy1, "big"); | |
1745 | strcut (copy1, "little"); | |
1746 | strcut (copy2, "big"); | |
1747 | strcut (copy2, "little"); | |
1748 | ||
1749 | /* Return a value based on how many characters match, | |
1750 | starting from the beginning. If both strings are | |
1751 | the same then return 10 * their length. */ | |
08da4cac KH |
1752 | for (result = 0; copy1[result] == copy2[result]; result++) |
1753 | if (copy1[result] == 0) | |
e50d8076 NC |
1754 | { |
1755 | result *= 10; | |
1756 | break; | |
1757 | } | |
5f992e62 | 1758 | |
e50d8076 NC |
1759 | free (copy1); |
1760 | free (copy2); | |
1761 | ||
1762 | return result; | |
1763 | } | |
1764 | ||
1765 | /* Set by closest_target_match() below. */ | |
08da4cac | 1766 | static const bfd_target *winner; |
e50d8076 NC |
1767 | |
1768 | /* Scan all the valid bfd targets looking for one that has the endianness | |
1769 | requirement that was specified on the command line, and is the nearest | |
1770 | match to the original output target. */ | |
08da4cac | 1771 | |
e50d8076 NC |
1772 | static int |
1773 | closest_target_match (target, data) | |
08da4cac | 1774 | const bfd_target *target; |
5f992e62 | 1775 | PTR data; |
e50d8076 | 1776 | { |
08da4cac | 1777 | const bfd_target *original = (const bfd_target *) data; |
5f992e62 | 1778 | |
08da4cac KH |
1779 | if (command_line.endian == ENDIAN_BIG |
1780 | && target->byteorder != BFD_ENDIAN_BIG) | |
e50d8076 | 1781 | return 0; |
5f992e62 | 1782 | |
08da4cac KH |
1783 | if (command_line.endian == ENDIAN_LITTLE |
1784 | && target->byteorder != BFD_ENDIAN_LITTLE) | |
e50d8076 NC |
1785 | return 0; |
1786 | ||
1787 | /* Must be the same flavour. */ | |
1788 | if (target->flavour != original->flavour) | |
1789 | return 0; | |
1790 | ||
1791 | /* If we have not found a potential winner yet, then record this one. */ | |
1792 | if (winner == NULL) | |
1793 | { | |
1794 | winner = target; | |
1795 | return 0; | |
1796 | } | |
1797 | ||
1798 | /* Oh dear, we now have two potential candidates for a successful match. | |
4de2d33d | 1799 | Compare their names and choose the better one. */ |
d1778b88 AM |
1800 | if (name_compare (target->name, original->name) |
1801 | > name_compare (winner->name, original->name)) | |
e50d8076 NC |
1802 | winner = target; |
1803 | ||
1804 | /* Keep on searching until wqe have checked them all. */ | |
1805 | return 0; | |
1806 | } | |
1807 | ||
1808 | /* Return the BFD target format of the first input file. */ | |
08da4cac | 1809 | |
e50d8076 NC |
1810 | static char * |
1811 | get_first_input_target () | |
1812 | { | |
08da4cac | 1813 | char *target = NULL; |
e50d8076 NC |
1814 | |
1815 | LANG_FOR_EACH_INPUT_STATEMENT (s) | |
1816 | { | |
1817 | if (s->header.type == lang_input_statement_enum | |
1818 | && s->real) | |
1819 | { | |
1820 | ldfile_open_file (s); | |
5f992e62 | 1821 | |
e50d8076 NC |
1822 | if (s->the_bfd != NULL |
1823 | && bfd_check_format (s->the_bfd, bfd_object)) | |
1824 | { | |
1825 | target = bfd_get_target (s->the_bfd); | |
5f992e62 | 1826 | |
e50d8076 NC |
1827 | if (target != NULL) |
1828 | break; | |
1829 | } | |
1830 | } | |
1831 | } | |
5f992e62 | 1832 | |
e50d8076 NC |
1833 | return target; |
1834 | } | |
1835 | ||
599917b8 JJ |
1836 | const char * |
1837 | lang_get_output_target () | |
1838 | { | |
1839 | const char *target; | |
1840 | ||
1841 | /* Has the user told us which output format to use? */ | |
1842 | if (output_target != (char *) NULL) | |
1843 | return output_target; | |
1844 | ||
1845 | /* No - has the current target been set to something other than | |
1846 | the default? */ | |
1847 | if (current_target != default_target) | |
1848 | return current_target; | |
1849 | ||
1850 | /* No - can we determine the format of the first input file? */ | |
1851 | target = get_first_input_target (); | |
1852 | if (target != NULL) | |
1853 | return target; | |
1854 | ||
1855 | /* Failed - use the default output target. */ | |
1856 | return default_target; | |
1857 | } | |
1858 | ||
252b5132 RH |
1859 | /* Open the output file. */ |
1860 | ||
1861 | static bfd * | |
1862 | open_output (name) | |
08da4cac | 1863 | const char *name; |
252b5132 | 1864 | { |
08da4cac | 1865 | bfd *output; |
252b5132 | 1866 | |
599917b8 | 1867 | output_target = lang_get_output_target (); |
5f992e62 | 1868 | |
08da4cac KH |
1869 | /* Has the user requested a particular endianness on the command |
1870 | line? */ | |
e50d8076 NC |
1871 | if (command_line.endian != ENDIAN_UNSET) |
1872 | { | |
08da4cac | 1873 | const bfd_target *target; |
1b69a0bf | 1874 | enum bfd_endian desired_endian; |
e50d8076 NC |
1875 | |
1876 | /* Get the chosen target. */ | |
5f992e62 | 1877 | target = bfd_search_for_target (get_target, (PTR) output_target); |
e50d8076 | 1878 | |
c13b1b77 NC |
1879 | /* If the target is not supported, we cannot do anything. */ |
1880 | if (target != NULL) | |
e50d8076 | 1881 | { |
c13b1b77 NC |
1882 | if (command_line.endian == ENDIAN_BIG) |
1883 | desired_endian = BFD_ENDIAN_BIG; | |
e50d8076 | 1884 | else |
c13b1b77 | 1885 | desired_endian = BFD_ENDIAN_LITTLE; |
5f992e62 AM |
1886 | |
1887 | /* See if the target has the wrong endianness. This should | |
1888 | not happen if the linker script has provided big and | |
1889 | little endian alternatives, but some scrips don't do | |
1890 | this. */ | |
c13b1b77 | 1891 | if (target->byteorder != desired_endian) |
e50d8076 | 1892 | { |
c13b1b77 NC |
1893 | /* If it does, then see if the target provides |
1894 | an alternative with the correct endianness. */ | |
1895 | if (target->alternative_target != NULL | |
1896 | && (target->alternative_target->byteorder == desired_endian)) | |
1897 | output_target = target->alternative_target->name; | |
e50d8076 | 1898 | else |
c13b1b77 | 1899 | { |
5f992e62 AM |
1900 | /* Try to find a target as similar as possible to |
1901 | the default target, but which has the desired | |
1902 | endian characteristic. */ | |
d1778b88 AM |
1903 | (void) bfd_search_for_target (closest_target_match, |
1904 | (PTR) target); | |
5f992e62 AM |
1905 | |
1906 | /* Oh dear - we could not find any targets that | |
1907 | satisfy our requirements. */ | |
c13b1b77 NC |
1908 | if (winner == NULL) |
1909 | einfo (_("%P: warning: could not find any targets that match endianness requirement\n")); | |
1910 | else | |
1911 | output_target = winner->name; | |
1912 | } | |
e50d8076 NC |
1913 | } |
1914 | } | |
252b5132 | 1915 | } |
5f992e62 | 1916 | |
252b5132 RH |
1917 | output = bfd_openw (name, output_target); |
1918 | ||
1919 | if (output == (bfd *) NULL) | |
1920 | { | |
1921 | if (bfd_get_error () == bfd_error_invalid_target) | |
e50d8076 NC |
1922 | einfo (_("%P%F: target %s not found\n"), output_target); |
1923 | ||
252b5132 RH |
1924 | einfo (_("%P%F: cannot open output file %s: %E\n"), name); |
1925 | } | |
1926 | ||
b34976b6 | 1927 | delete_output_file_on_failure = TRUE; |
252b5132 | 1928 | |
08da4cac KH |
1929 | #if 0 |
1930 | output->flags |= D_PAGED; | |
1931 | #endif | |
252b5132 RH |
1932 | |
1933 | if (! bfd_set_format (output, bfd_object)) | |
1934 | einfo (_("%P%F:%s: can not make object file: %E\n"), name); | |
1935 | if (! bfd_set_arch_mach (output, | |
1936 | ldfile_output_architecture, | |
1937 | ldfile_output_machine)) | |
1938 | einfo (_("%P%F:%s: can not set architecture: %E\n"), name); | |
1939 | ||
1940 | link_info.hash = bfd_link_hash_table_create (output); | |
1941 | if (link_info.hash == (struct bfd_link_hash_table *) NULL) | |
1942 | einfo (_("%P%F: can not create link hash table: %E\n")); | |
1943 | ||
1944 | bfd_set_gp_size (output, g_switch_value); | |
1945 | return output; | |
1946 | } | |
1947 | ||
252b5132 RH |
1948 | static void |
1949 | ldlang_open_output (statement) | |
08da4cac | 1950 | lang_statement_union_type *statement; |
252b5132 RH |
1951 | { |
1952 | switch (statement->header.type) | |
1953 | { | |
1954 | case lang_output_statement_enum: | |
1955 | ASSERT (output_bfd == (bfd *) NULL); | |
1956 | output_bfd = open_output (statement->output_statement.name); | |
1957 | ldemul_set_output_arch (); | |
1958 | if (config.magic_demand_paged && !link_info.relocateable) | |
1959 | output_bfd->flags |= D_PAGED; | |
1960 | else | |
1961 | output_bfd->flags &= ~D_PAGED; | |
1962 | if (config.text_read_only) | |
1963 | output_bfd->flags |= WP_TEXT; | |
1964 | else | |
1965 | output_bfd->flags &= ~WP_TEXT; | |
1966 | if (link_info.traditional_format) | |
1967 | output_bfd->flags |= BFD_TRADITIONAL_FORMAT; | |
1968 | else | |
1969 | output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; | |
1970 | break; | |
1971 | ||
1972 | case lang_target_statement_enum: | |
1973 | current_target = statement->target_statement.target; | |
1974 | break; | |
1975 | default: | |
1976 | break; | |
1977 | } | |
1978 | } | |
1979 | ||
1980 | /* Open all the input files. */ | |
1981 | ||
1982 | static void | |
1983 | open_input_bfds (s, force) | |
1984 | lang_statement_union_type *s; | |
b34976b6 | 1985 | bfd_boolean force; |
252b5132 | 1986 | { |
bba1a0c0 | 1987 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
1988 | { |
1989 | switch (s->header.type) | |
1990 | { | |
1991 | case lang_constructors_statement_enum: | |
1992 | open_input_bfds (constructor_list.head, force); | |
1993 | break; | |
1994 | case lang_output_section_statement_enum: | |
1995 | open_input_bfds (s->output_section_statement.children.head, force); | |
1996 | break; | |
1997 | case lang_wild_statement_enum: | |
08da4cac | 1998 | /* Maybe we should load the file's symbols. */ |
252b5132 RH |
1999 | if (s->wild_statement.filename |
2000 | && ! wildcardp (s->wild_statement.filename)) | |
2001 | (void) lookup_name (s->wild_statement.filename); | |
2002 | open_input_bfds (s->wild_statement.children.head, force); | |
2003 | break; | |
2004 | case lang_group_statement_enum: | |
2005 | { | |
2006 | struct bfd_link_hash_entry *undefs; | |
2007 | ||
2008 | /* We must continually search the entries in the group | |
08da4cac KH |
2009 | until no new symbols are added to the list of undefined |
2010 | symbols. */ | |
252b5132 RH |
2011 | |
2012 | do | |
2013 | { | |
2014 | undefs = link_info.hash->undefs_tail; | |
b34976b6 | 2015 | open_input_bfds (s->group_statement.children.head, TRUE); |
252b5132 RH |
2016 | } |
2017 | while (undefs != link_info.hash->undefs_tail); | |
2018 | } | |
2019 | break; | |
2020 | case lang_target_statement_enum: | |
2021 | current_target = s->target_statement.target; | |
2022 | break; | |
2023 | case lang_input_statement_enum: | |
e50d8076 | 2024 | if (s->input_statement.real) |
252b5132 RH |
2025 | { |
2026 | lang_statement_list_type add; | |
2027 | ||
2028 | s->input_statement.target = current_target; | |
2029 | ||
2030 | /* If we are being called from within a group, and this | |
2031 | is an archive which has already been searched, then | |
cd4c806a L |
2032 | force it to be researched unless the whole archive |
2033 | has been loaded already. */ | |
252b5132 | 2034 | if (force |
cd4c806a | 2035 | && !s->input_statement.whole_archive |
252b5132 RH |
2036 | && s->input_statement.loaded |
2037 | && bfd_check_format (s->input_statement.the_bfd, | |
2038 | bfd_archive)) | |
b34976b6 | 2039 | s->input_statement.loaded = FALSE; |
252b5132 | 2040 | |
d1778b88 | 2041 | lang_list_init (&add); |
1276aefa | 2042 | |
6770ec8c | 2043 | if (! load_symbols (&s->input_statement, &add)) |
b34976b6 | 2044 | config.make_executable = FALSE; |
252b5132 RH |
2045 | |
2046 | if (add.head != NULL) | |
2047 | { | |
bba1a0c0 AM |
2048 | *add.tail = s->header.next; |
2049 | s->header.next = add.head; | |
252b5132 RH |
2050 | } |
2051 | } | |
2052 | break; | |
2053 | default: | |
2054 | break; | |
2055 | } | |
2056 | } | |
2057 | } | |
2058 | ||
08da4cac KH |
2059 | /* If there are [COMMONS] statements, put a wild one into the bss |
2060 | section. */ | |
252b5132 RH |
2061 | |
2062 | static void | |
2063 | lang_reasonable_defaults () | |
2064 | { | |
2065 | #if 0 | |
2066 | lang_output_section_statement_lookup (".text"); | |
2067 | lang_output_section_statement_lookup (".data"); | |
2068 | ||
08da4cac | 2069 | default_common_section = lang_output_section_statement_lookup (".bss"); |
252b5132 | 2070 | |
7c519c12 | 2071 | if (!placed_commons) |
252b5132 RH |
2072 | { |
2073 | lang_wild_statement_type *new = | |
2074 | new_stat (lang_wild_statement, | |
2075 | &default_common_section->children); | |
2076 | ||
2077 | new->section_name = "COMMON"; | |
2078 | new->filename = (char *) NULL; | |
2079 | lang_list_init (&new->children); | |
2080 | } | |
2081 | #endif | |
252b5132 RH |
2082 | } |
2083 | ||
08da4cac | 2084 | /* Add the supplied name to the symbol table as an undefined reference. |
fcf0e35b AM |
2085 | This is a two step process as the symbol table doesn't even exist at |
2086 | the time the ld command line is processed. First we put the name | |
2087 | on a list, then, once the output file has been opened, transfer the | |
2088 | name to the symbol table. */ | |
2089 | ||
e3e942e9 | 2090 | typedef struct bfd_sym_chain ldlang_undef_chain_list_type; |
252b5132 | 2091 | |
e3e942e9 | 2092 | #define ldlang_undef_chain_list_head entry_symbol.next |
252b5132 RH |
2093 | |
2094 | void | |
2095 | ldlang_add_undef (name) | |
5f992e62 | 2096 | const char *const name; |
252b5132 RH |
2097 | { |
2098 | ldlang_undef_chain_list_type *new = | |
2099 | ((ldlang_undef_chain_list_type *) | |
2100 | stat_alloc (sizeof (ldlang_undef_chain_list_type))); | |
2101 | ||
2102 | new->next = ldlang_undef_chain_list_head; | |
2103 | ldlang_undef_chain_list_head = new; | |
2104 | ||
d1b2b2dc | 2105 | new->name = xstrdup (name); |
fcf0e35b AM |
2106 | |
2107 | if (output_bfd != NULL) | |
2108 | insert_undefined (new->name); | |
2109 | } | |
2110 | ||
2111 | /* Insert NAME as undefined in the symbol table. */ | |
2112 | ||
2113 | static void | |
2114 | insert_undefined (name) | |
2115 | const char *name; | |
2116 | { | |
2117 | struct bfd_link_hash_entry *h; | |
2118 | ||
b34976b6 | 2119 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, FALSE, TRUE); |
fcf0e35b AM |
2120 | if (h == (struct bfd_link_hash_entry *) NULL) |
2121 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
2122 | if (h->type == bfd_link_hash_new) | |
2123 | { | |
2124 | h->type = bfd_link_hash_undefined; | |
2125 | h->u.undef.abfd = NULL; | |
2126 | bfd_link_add_undef (link_info.hash, h); | |
2127 | } | |
252b5132 RH |
2128 | } |
2129 | ||
2130 | /* Run through the list of undefineds created above and place them | |
2131 | into the linker hash table as undefined symbols belonging to the | |
08da4cac KH |
2132 | script file. */ |
2133 | ||
252b5132 RH |
2134 | static void |
2135 | lang_place_undefineds () | |
2136 | { | |
2137 | ldlang_undef_chain_list_type *ptr; | |
2138 | ||
2139 | for (ptr = ldlang_undef_chain_list_head; | |
2140 | ptr != (ldlang_undef_chain_list_type *) NULL; | |
2141 | ptr = ptr->next) | |
2142 | { | |
fcf0e35b | 2143 | insert_undefined (ptr->name); |
252b5132 RH |
2144 | } |
2145 | } | |
2146 | ||
396a2467 | 2147 | /* Open input files and attach to output sections. */ |
08da4cac | 2148 | |
252b5132 RH |
2149 | static void |
2150 | map_input_to_output_sections (s, target, output_section_statement) | |
08da4cac | 2151 | lang_statement_union_type *s; |
5f992e62 | 2152 | const char *target; |
08da4cac | 2153 | lang_output_section_statement_type *output_section_statement; |
252b5132 | 2154 | { |
bba1a0c0 | 2155 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
2156 | { |
2157 | switch (s->header.type) | |
2158 | { | |
252b5132 | 2159 | case lang_wild_statement_enum: |
b6bf44ba | 2160 | wild (&s->wild_statement, target, output_section_statement); |
abc6ab0a | 2161 | break; |
252b5132 RH |
2162 | case lang_constructors_statement_enum: |
2163 | map_input_to_output_sections (constructor_list.head, | |
2164 | target, | |
2165 | output_section_statement); | |
2166 | break; | |
2167 | case lang_output_section_statement_enum: | |
2168 | map_input_to_output_sections (s->output_section_statement.children.head, | |
2169 | target, | |
2170 | &s->output_section_statement); | |
2171 | break; | |
2172 | case lang_output_statement_enum: | |
2173 | break; | |
2174 | case lang_target_statement_enum: | |
2175 | target = s->target_statement.target; | |
2176 | break; | |
2177 | case lang_group_statement_enum: | |
2178 | map_input_to_output_sections (s->group_statement.children.head, | |
2179 | target, | |
2180 | output_section_statement); | |
2181 | break; | |
2182 | case lang_fill_statement_enum: | |
2183 | case lang_input_section_enum: | |
2184 | case lang_object_symbols_statement_enum: | |
2185 | case lang_data_statement_enum: | |
2186 | case lang_reloc_statement_enum: | |
2187 | case lang_padding_statement_enum: | |
2188 | case lang_input_statement_enum: | |
2189 | if (output_section_statement != NULL | |
2190 | && output_section_statement->bfd_section == NULL) | |
2191 | init_os (output_section_statement); | |
2192 | break; | |
2193 | case lang_assignment_statement_enum: | |
2194 | if (output_section_statement != NULL | |
2195 | && output_section_statement->bfd_section == NULL) | |
2196 | init_os (output_section_statement); | |
2197 | ||
2198 | /* Make sure that any sections mentioned in the assignment | |
08da4cac | 2199 | are initialized. */ |
252b5132 RH |
2200 | exp_init_os (s->assignment_statement.exp); |
2201 | break; | |
2202 | case lang_afile_asection_pair_statement_enum: | |
2203 | FAIL (); | |
2204 | break; | |
2205 | case lang_address_statement_enum: | |
08da4cac | 2206 | /* Mark the specified section with the supplied address. */ |
252b5132 RH |
2207 | { |
2208 | lang_output_section_statement_type *os = | |
2209 | lang_output_section_statement_lookup | |
2210 | (s->address_statement.section_name); | |
2211 | ||
2212 | if (os->bfd_section == NULL) | |
2213 | init_os (os); | |
2214 | os->addr_tree = s->address_statement.address; | |
2215 | } | |
2216 | break; | |
2217 | } | |
2218 | } | |
2219 | } | |
2220 | ||
4bd5a393 AM |
2221 | /* An output section might have been removed after its statement was |
2222 | added. For example, ldemul_before_allocation can remove dynamic | |
2223 | sections if they turn out to be not needed. Clean them up here. */ | |
2224 | ||
2225 | static void | |
2226 | strip_excluded_output_sections () | |
2227 | { | |
2228 | lang_statement_union_type *u; | |
2229 | ||
2230 | for (u = lang_output_section_statement.head; | |
2231 | u != NULL; | |
2232 | u = u->output_section_statement.next) | |
2233 | { | |
2234 | lang_output_section_statement_type *os; | |
2235 | asection *s; | |
2236 | ||
2237 | os = &u->output_section_statement; | |
2238 | s = os->bfd_section; | |
2239 | if (s != NULL && (s->flags & SEC_EXCLUDE) != 0) | |
2240 | { | |
2241 | asection **p; | |
2242 | ||
2243 | os->bfd_section = NULL; | |
2244 | ||
2245 | for (p = &output_bfd->sections; *p; p = &(*p)->next) | |
2246 | if (*p == s) | |
2247 | { | |
2248 | bfd_section_list_remove (output_bfd, p); | |
2249 | output_bfd->section_count--; | |
2250 | break; | |
2251 | } | |
2252 | } | |
2253 | } | |
2254 | } | |
2255 | ||
252b5132 RH |
2256 | static void |
2257 | print_output_section_statement (output_section_statement) | |
08da4cac | 2258 | lang_output_section_statement_type *output_section_statement; |
252b5132 RH |
2259 | { |
2260 | asection *section = output_section_statement->bfd_section; | |
2261 | int len; | |
2262 | ||
2263 | if (output_section_statement != abs_output_section) | |
2264 | { | |
2265 | minfo ("\n%s", output_section_statement->name); | |
2266 | ||
2267 | if (section != NULL) | |
2268 | { | |
2269 | print_dot = section->vma; | |
2270 | ||
2271 | len = strlen (output_section_statement->name); | |
2272 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
2273 | { | |
2274 | print_nl (); | |
2275 | len = 0; | |
2276 | } | |
2277 | while (len < SECTION_NAME_MAP_LENGTH) | |
2278 | { | |
2279 | print_space (); | |
2280 | ++len; | |
2281 | } | |
2282 | ||
2283 | minfo ("0x%V %W", section->vma, section->_raw_size); | |
2284 | ||
2285 | if (output_section_statement->load_base != NULL) | |
2286 | { | |
2287 | bfd_vma addr; | |
2288 | ||
2289 | addr = exp_get_abs_int (output_section_statement->load_base, 0, | |
2290 | "load base", lang_final_phase_enum); | |
2291 | minfo (_(" load address 0x%V"), addr); | |
2292 | } | |
2293 | } | |
2294 | ||
2295 | print_nl (); | |
2296 | } | |
2297 | ||
2298 | print_statement_list (output_section_statement->children.head, | |
2299 | output_section_statement); | |
2300 | } | |
2301 | ||
2302 | static void | |
2303 | print_assignment (assignment, output_section) | |
08da4cac KH |
2304 | lang_assignment_statement_type *assignment; |
2305 | lang_output_section_statement_type *output_section; | |
252b5132 RH |
2306 | { |
2307 | int i; | |
2308 | etree_value_type result; | |
2309 | ||
2310 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2311 | print_space (); | |
2312 | ||
2313 | result = exp_fold_tree (assignment->exp->assign.src, output_section, | |
2314 | lang_final_phase_enum, print_dot, &print_dot); | |
2315 | if (result.valid_p) | |
7b17f854 RS |
2316 | { |
2317 | const char *dst; | |
2318 | bfd_vma value; | |
2319 | ||
2320 | value = result.value + result.section->bfd_section->vma; | |
2321 | dst = assignment->exp->assign.dst; | |
2322 | ||
2323 | minfo ("0x%V", value); | |
2324 | if (dst[0] == '.' && dst[1] == 0) | |
2325 | print_dot = value; | |
2326 | } | |
252b5132 RH |
2327 | else |
2328 | { | |
2329 | minfo ("*undef* "); | |
2330 | #ifdef BFD64 | |
2331 | minfo (" "); | |
2332 | #endif | |
2333 | } | |
2334 | ||
2335 | minfo (" "); | |
2336 | ||
2337 | exp_print_tree (assignment->exp); | |
2338 | ||
2339 | print_nl (); | |
2340 | } | |
2341 | ||
2342 | static void | |
2343 | print_input_statement (statm) | |
08da4cac | 2344 | lang_input_statement_type *statm; |
252b5132 RH |
2345 | { |
2346 | if (statm->filename != (char *) NULL) | |
2347 | { | |
2348 | fprintf (config.map_file, "LOAD %s\n", statm->filename); | |
2349 | } | |
2350 | } | |
2351 | ||
2352 | /* Print all symbols defined in a particular section. This is called | |
2353 | via bfd_link_hash_traverse. */ | |
2354 | ||
b34976b6 | 2355 | static bfd_boolean |
252b5132 RH |
2356 | print_one_symbol (hash_entry, ptr) |
2357 | struct bfd_link_hash_entry *hash_entry; | |
2358 | PTR ptr; | |
2359 | { | |
2360 | asection *sec = (asection *) ptr; | |
2361 | ||
2362 | if ((hash_entry->type == bfd_link_hash_defined | |
2363 | || hash_entry->type == bfd_link_hash_defweak) | |
2364 | && sec == hash_entry->u.def.section) | |
2365 | { | |
2366 | int i; | |
2367 | ||
2368 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2369 | print_space (); | |
2370 | minfo ("0x%V ", | |
2371 | (hash_entry->u.def.value | |
2372 | + hash_entry->u.def.section->output_offset | |
2373 | + hash_entry->u.def.section->output_section->vma)); | |
2374 | ||
2375 | minfo (" %T\n", hash_entry->root.string); | |
2376 | } | |
2377 | ||
b34976b6 | 2378 | return TRUE; |
252b5132 RH |
2379 | } |
2380 | ||
2381 | /* Print information about an input section to the map file. */ | |
2382 | ||
2383 | static void | |
2384 | print_input_section (in) | |
08da4cac | 2385 | lang_input_section_type *in; |
252b5132 RH |
2386 | { |
2387 | asection *i = in->section; | |
2388 | bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size; | |
5f992e62 | 2389 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
f6af82bd | 2390 | ldfile_output_machine); |
252b5132 RH |
2391 | if (size != 0) |
2392 | { | |
2393 | print_space (); | |
2394 | ||
2395 | minfo ("%s", i->name); | |
2396 | ||
2397 | if (i->output_section != NULL) | |
2398 | { | |
2399 | int len; | |
2400 | ||
2401 | len = 1 + strlen (i->name); | |
2402 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
2403 | { | |
2404 | print_nl (); | |
2405 | len = 0; | |
2406 | } | |
2407 | while (len < SECTION_NAME_MAP_LENGTH) | |
2408 | { | |
2409 | print_space (); | |
2410 | ++len; | |
2411 | } | |
2412 | ||
2413 | minfo ("0x%V %W %B\n", | |
4cbfc3ac | 2414 | i->output_section->vma + i->output_offset, size / opb, |
252b5132 RH |
2415 | i->owner); |
2416 | ||
2417 | if (i->_cooked_size != 0 && i->_cooked_size != i->_raw_size) | |
2418 | { | |
2419 | len = SECTION_NAME_MAP_LENGTH + 3; | |
2420 | #ifdef BFD64 | |
2421 | len += 16; | |
2422 | #else | |
2423 | len += 8; | |
2424 | #endif | |
2425 | while (len > 0) | |
2426 | { | |
2427 | print_space (); | |
2428 | --len; | |
2429 | } | |
2430 | ||
2431 | minfo (_("%W (size before relaxing)\n"), i->_raw_size); | |
2432 | } | |
2433 | ||
2434 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i); | |
2435 | ||
4cbfc3ac | 2436 | print_dot = i->output_section->vma + i->output_offset + size / opb; |
252b5132 RH |
2437 | } |
2438 | } | |
2439 | } | |
2440 | ||
2441 | static void | |
2442 | print_fill_statement (fill) | |
08da4cac | 2443 | lang_fill_statement_type *fill; |
252b5132 | 2444 | { |
2c382fb6 AM |
2445 | size_t size; |
2446 | unsigned char *p; | |
2447 | fputs (" FILL mask 0x", config.map_file); | |
2448 | for (p = fill->fill->data, size = fill->fill->size; size != 0; p++, size--) | |
2449 | fprintf (config.map_file, "%02x", *p); | |
2450 | fputs ("\n", config.map_file); | |
252b5132 RH |
2451 | } |
2452 | ||
2453 | static void | |
2454 | print_data_statement (data) | |
08da4cac | 2455 | lang_data_statement_type *data; |
252b5132 RH |
2456 | { |
2457 | int i; | |
2458 | bfd_vma addr; | |
2459 | bfd_size_type size; | |
2460 | const char *name; | |
5f992e62 | 2461 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
f6af82bd | 2462 | ldfile_output_machine); |
252b5132 RH |
2463 | |
2464 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2465 | print_space (); | |
2466 | ||
2467 | addr = data->output_vma; | |
2468 | if (data->output_section != NULL) | |
2469 | addr += data->output_section->vma; | |
2470 | ||
2471 | switch (data->type) | |
2472 | { | |
2473 | default: | |
2474 | abort (); | |
2475 | case BYTE: | |
2476 | size = BYTE_SIZE; | |
2477 | name = "BYTE"; | |
2478 | break; | |
2479 | case SHORT: | |
2480 | size = SHORT_SIZE; | |
2481 | name = "SHORT"; | |
2482 | break; | |
2483 | case LONG: | |
2484 | size = LONG_SIZE; | |
2485 | name = "LONG"; | |
2486 | break; | |
2487 | case QUAD: | |
2488 | size = QUAD_SIZE; | |
2489 | name = "QUAD"; | |
2490 | break; | |
2491 | case SQUAD: | |
2492 | size = QUAD_SIZE; | |
2493 | name = "SQUAD"; | |
2494 | break; | |
2495 | } | |
2496 | ||
2497 | minfo ("0x%V %W %s 0x%v", addr, size, name, data->value); | |
2498 | ||
2499 | if (data->exp->type.node_class != etree_value) | |
2500 | { | |
2501 | print_space (); | |
2502 | exp_print_tree (data->exp); | |
2503 | } | |
2504 | ||
2505 | print_nl (); | |
2506 | ||
4cbfc3ac TW |
2507 | print_dot = addr + size / opb; |
2508 | ||
252b5132 RH |
2509 | } |
2510 | ||
2511 | /* Print an address statement. These are generated by options like | |
2512 | -Ttext. */ | |
2513 | ||
2514 | static void | |
2515 | print_address_statement (address) | |
2516 | lang_address_statement_type *address; | |
2517 | { | |
2518 | minfo (_("Address of section %s set to "), address->section_name); | |
2519 | exp_print_tree (address->address); | |
2520 | print_nl (); | |
2521 | } | |
2522 | ||
2523 | /* Print a reloc statement. */ | |
2524 | ||
2525 | static void | |
2526 | print_reloc_statement (reloc) | |
2527 | lang_reloc_statement_type *reloc; | |
2528 | { | |
2529 | int i; | |
2530 | bfd_vma addr; | |
2531 | bfd_size_type size; | |
5f992e62 AM |
2532 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
2533 | ldfile_output_machine); | |
252b5132 RH |
2534 | |
2535 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2536 | print_space (); | |
2537 | ||
2538 | addr = reloc->output_vma; | |
2539 | if (reloc->output_section != NULL) | |
2540 | addr += reloc->output_section->vma; | |
2541 | ||
2542 | size = bfd_get_reloc_size (reloc->howto); | |
2543 | ||
2544 | minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name); | |
2545 | ||
2546 | if (reloc->name != NULL) | |
2547 | minfo ("%s+", reloc->name); | |
2548 | else | |
2549 | minfo ("%s+", reloc->section->name); | |
2550 | ||
2551 | exp_print_tree (reloc->addend_exp); | |
2552 | ||
2553 | print_nl (); | |
2554 | ||
4cbfc3ac | 2555 | print_dot = addr + size / opb; |
5f992e62 | 2556 | } |
252b5132 RH |
2557 | |
2558 | static void | |
2559 | print_padding_statement (s) | |
2560 | lang_padding_statement_type *s; | |
2561 | { | |
2562 | int len; | |
2563 | bfd_vma addr; | |
5f992e62 AM |
2564 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
2565 | ldfile_output_machine); | |
252b5132 RH |
2566 | |
2567 | minfo (" *fill*"); | |
2568 | ||
2569 | len = sizeof " *fill*" - 1; | |
2570 | while (len < SECTION_NAME_MAP_LENGTH) | |
2571 | { | |
2572 | print_space (); | |
2573 | ++len; | |
2574 | } | |
2575 | ||
2576 | addr = s->output_offset; | |
2577 | if (s->output_section != NULL) | |
2578 | addr += s->output_section->vma; | |
2c382fb6 | 2579 | minfo ("0x%V %W ", addr, s->size); |
252b5132 | 2580 | |
2c382fb6 AM |
2581 | if (s->fill->size != 0) |
2582 | { | |
2583 | size_t size; | |
2584 | unsigned char *p; | |
2585 | for (p = s->fill->data, size = s->fill->size; size != 0; p++, size--) | |
2586 | fprintf (config.map_file, "%02x", *p); | |
2587 | } | |
252b5132 RH |
2588 | |
2589 | print_nl (); | |
2590 | ||
4cbfc3ac | 2591 | print_dot = addr + s->size / opb; |
252b5132 RH |
2592 | } |
2593 | ||
2594 | static void | |
2595 | print_wild_statement (w, os) | |
08da4cac KH |
2596 | lang_wild_statement_type *w; |
2597 | lang_output_section_statement_type *os; | |
252b5132 | 2598 | { |
b6bf44ba AM |
2599 | struct wildcard_list *sec; |
2600 | ||
252b5132 RH |
2601 | print_space (); |
2602 | ||
2603 | if (w->filenames_sorted) | |
2604 | minfo ("SORT("); | |
08da4cac | 2605 | if (w->filename != NULL) |
252b5132 RH |
2606 | minfo ("%s", w->filename); |
2607 | else | |
2608 | minfo ("*"); | |
2609 | if (w->filenames_sorted) | |
2610 | minfo (")"); | |
2611 | ||
2612 | minfo ("("); | |
b6bf44ba AM |
2613 | for (sec = w->section_list; sec; sec = sec->next) |
2614 | { | |
2615 | if (sec->spec.sorted) | |
2616 | minfo ("SORT("); | |
2617 | if (sec->spec.exclude_name_list != NULL) | |
2618 | { | |
2619 | name_list *tmp; | |
34786259 | 2620 | minfo ("EXCLUDE_FILE(%s", sec->spec.exclude_name_list->name); |
b6bf44ba | 2621 | for (tmp = sec->spec.exclude_name_list->next; tmp; tmp = tmp->next) |
34786259 AM |
2622 | minfo (" %s", tmp->name); |
2623 | minfo (") "); | |
b6bf44ba AM |
2624 | } |
2625 | if (sec->spec.name != NULL) | |
2626 | minfo ("%s", sec->spec.name); | |
2627 | else | |
2628 | minfo ("*"); | |
2629 | if (sec->spec.sorted) | |
2630 | minfo (")"); | |
34786259 AM |
2631 | if (sec->next) |
2632 | minfo (" "); | |
b6bf44ba | 2633 | } |
252b5132 RH |
2634 | minfo (")"); |
2635 | ||
2636 | print_nl (); | |
2637 | ||
2638 | print_statement_list (w->children.head, os); | |
2639 | } | |
2640 | ||
2641 | /* Print a group statement. */ | |
2642 | ||
2643 | static void | |
2644 | print_group (s, os) | |
2645 | lang_group_statement_type *s; | |
2646 | lang_output_section_statement_type *os; | |
2647 | { | |
2648 | fprintf (config.map_file, "START GROUP\n"); | |
2649 | print_statement_list (s->children.head, os); | |
2650 | fprintf (config.map_file, "END GROUP\n"); | |
2651 | } | |
2652 | ||
2653 | /* Print the list of statements in S. | |
2654 | This can be called for any statement type. */ | |
2655 | ||
2656 | static void | |
2657 | print_statement_list (s, os) | |
2658 | lang_statement_union_type *s; | |
2659 | lang_output_section_statement_type *os; | |
2660 | { | |
2661 | while (s != NULL) | |
2662 | { | |
2663 | print_statement (s, os); | |
bba1a0c0 | 2664 | s = s->header.next; |
252b5132 RH |
2665 | } |
2666 | } | |
2667 | ||
2668 | /* Print the first statement in statement list S. | |
2669 | This can be called for any statement type. */ | |
2670 | ||
2671 | static void | |
2672 | print_statement (s, os) | |
2673 | lang_statement_union_type *s; | |
2674 | lang_output_section_statement_type *os; | |
2675 | { | |
2676 | switch (s->header.type) | |
2677 | { | |
2678 | default: | |
2679 | fprintf (config.map_file, _("Fail with %d\n"), s->header.type); | |
2680 | FAIL (); | |
2681 | break; | |
2682 | case lang_constructors_statement_enum: | |
2683 | if (constructor_list.head != NULL) | |
2684 | { | |
2685 | if (constructors_sorted) | |
2686 | minfo (" SORT (CONSTRUCTORS)\n"); | |
2687 | else | |
2688 | minfo (" CONSTRUCTORS\n"); | |
2689 | print_statement_list (constructor_list.head, os); | |
2690 | } | |
2691 | break; | |
2692 | case lang_wild_statement_enum: | |
2693 | print_wild_statement (&s->wild_statement, os); | |
2694 | break; | |
2695 | case lang_address_statement_enum: | |
2696 | print_address_statement (&s->address_statement); | |
2697 | break; | |
2698 | case lang_object_symbols_statement_enum: | |
2699 | minfo (" CREATE_OBJECT_SYMBOLS\n"); | |
2700 | break; | |
2701 | case lang_fill_statement_enum: | |
2702 | print_fill_statement (&s->fill_statement); | |
2703 | break; | |
2704 | case lang_data_statement_enum: | |
2705 | print_data_statement (&s->data_statement); | |
2706 | break; | |
2707 | case lang_reloc_statement_enum: | |
2708 | print_reloc_statement (&s->reloc_statement); | |
2709 | break; | |
2710 | case lang_input_section_enum: | |
2711 | print_input_section (&s->input_section); | |
2712 | break; | |
2713 | case lang_padding_statement_enum: | |
2714 | print_padding_statement (&s->padding_statement); | |
2715 | break; | |
2716 | case lang_output_section_statement_enum: | |
2717 | print_output_section_statement (&s->output_section_statement); | |
2718 | break; | |
2719 | case lang_assignment_statement_enum: | |
2720 | print_assignment (&s->assignment_statement, os); | |
2721 | break; | |
2722 | case lang_target_statement_enum: | |
2723 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
2724 | break; | |
2725 | case lang_output_statement_enum: | |
2726 | minfo ("OUTPUT(%s", s->output_statement.name); | |
2727 | if (output_target != NULL) | |
2728 | minfo (" %s", output_target); | |
2729 | minfo (")\n"); | |
2730 | break; | |
2731 | case lang_input_statement_enum: | |
2732 | print_input_statement (&s->input_statement); | |
2733 | break; | |
2734 | case lang_group_statement_enum: | |
2735 | print_group (&s->group_statement, os); | |
2736 | break; | |
2737 | case lang_afile_asection_pair_statement_enum: | |
2738 | FAIL (); | |
2739 | break; | |
2740 | } | |
2741 | } | |
2742 | ||
2743 | static void | |
2744 | print_statements () | |
2745 | { | |
2746 | print_statement_list (statement_list.head, abs_output_section); | |
2747 | } | |
2748 | ||
2749 | /* Print the first N statements in statement list S to STDERR. | |
2750 | If N == 0, nothing is printed. | |
2751 | If N < 0, the entire list is printed. | |
2752 | Intended to be called from GDB. */ | |
2753 | ||
2754 | void | |
2755 | dprint_statement (s, n) | |
08da4cac | 2756 | lang_statement_union_type *s; |
252b5132 RH |
2757 | int n; |
2758 | { | |
2759 | FILE *map_save = config.map_file; | |
2760 | ||
2761 | config.map_file = stderr; | |
2762 | ||
2763 | if (n < 0) | |
2764 | print_statement_list (s, abs_output_section); | |
2765 | else | |
2766 | { | |
2767 | while (s && --n >= 0) | |
2768 | { | |
2769 | print_statement (s, abs_output_section); | |
bba1a0c0 | 2770 | s = s->header.next; |
252b5132 RH |
2771 | } |
2772 | } | |
2773 | ||
2774 | config.map_file = map_save; | |
2775 | } | |
2776 | ||
b3327aad AM |
2777 | static void |
2778 | insert_pad (ptr, fill, alignment_needed, output_section, dot) | |
2779 | lang_statement_union_type **ptr; | |
2c382fb6 | 2780 | fill_type *fill; |
b3327aad AM |
2781 | unsigned int alignment_needed; |
2782 | asection *output_section; | |
252b5132 RH |
2783 | bfd_vma dot; |
2784 | { | |
2c382fb6 | 2785 | static fill_type zero_fill = { 1, { 0 } }; |
b3327aad | 2786 | lang_statement_union_type *pad; |
b3327aad | 2787 | |
c0c330a7 | 2788 | pad = ((lang_statement_union_type *) |
2af02257 | 2789 | ((char *) ptr - offsetof (lang_statement_union_type, header.next))); |
b3327aad | 2790 | if (ptr != &statement_list.head |
2af02257 | 2791 | && pad->header.type == lang_padding_statement_enum |
b3327aad | 2792 | && pad->padding_statement.output_section == output_section) |
252b5132 | 2793 | { |
b3327aad AM |
2794 | /* Use the existing pad statement. The above test on output |
2795 | section is probably redundant, but it doesn't hurt to check. */ | |
252b5132 | 2796 | } |
b3327aad | 2797 | else |
252b5132 | 2798 | { |
b3327aad AM |
2799 | /* Make a new padding statement, linked into existing chain. */ |
2800 | pad = ((lang_statement_union_type *) | |
2801 | stat_alloc (sizeof (lang_padding_statement_type))); | |
2802 | pad->header.next = *ptr; | |
2803 | *ptr = pad; | |
2804 | pad->header.type = lang_padding_statement_enum; | |
2805 | pad->padding_statement.output_section = output_section; | |
2c382fb6 AM |
2806 | if (fill == (fill_type *) 0) |
2807 | fill = &zero_fill; | |
b3327aad | 2808 | pad->padding_statement.fill = fill; |
252b5132 | 2809 | } |
b3327aad AM |
2810 | pad->padding_statement.output_offset = dot - output_section->vma; |
2811 | pad->padding_statement.size = alignment_needed; | |
2812 | output_section->_raw_size += alignment_needed; | |
252b5132 RH |
2813 | } |
2814 | ||
08da4cac KH |
2815 | /* Work out how much this section will move the dot point. */ |
2816 | ||
252b5132 | 2817 | static bfd_vma |
b3327aad | 2818 | size_input_section (this_ptr, output_section_statement, fill, dot) |
08da4cac KH |
2819 | lang_statement_union_type **this_ptr; |
2820 | lang_output_section_statement_type *output_section_statement; | |
2c382fb6 | 2821 | fill_type *fill; |
252b5132 | 2822 | bfd_vma dot; |
252b5132 RH |
2823 | { |
2824 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
2825 | asection *i = is->section; | |
2826 | ||
7c519c12 | 2827 | if (!is->ifile->just_syms_flag) |
252b5132 | 2828 | { |
b3327aad AM |
2829 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
2830 | ldfile_output_machine); | |
2831 | unsigned int alignment_needed; | |
2832 | asection *o; | |
2833 | ||
2834 | /* Align this section first to the input sections requirement, | |
2835 | then to the output section's requirement. If this alignment | |
2836 | is greater than any seen before, then record it too. Perform | |
2837 | the alignment by inserting a magic 'padding' statement. */ | |
2838 | ||
252b5132 | 2839 | if (output_section_statement->subsection_alignment != -1) |
b3327aad AM |
2840 | i->alignment_power = output_section_statement->subsection_alignment; |
2841 | ||
2842 | o = output_section_statement->bfd_section; | |
2843 | if (o->alignment_power < i->alignment_power) | |
2844 | o->alignment_power = i->alignment_power; | |
252b5132 | 2845 | |
b3327aad AM |
2846 | alignment_needed = align_power (dot, i->alignment_power) - dot; |
2847 | ||
2848 | if (alignment_needed != 0) | |
2849 | { | |
2850 | insert_pad (this_ptr, fill, alignment_needed * opb, o, dot); | |
2851 | dot += alignment_needed; | |
2852 | } | |
252b5132 | 2853 | |
08da4cac | 2854 | /* Remember where in the output section this input section goes. */ |
252b5132 | 2855 | |
b3327aad | 2856 | i->output_offset = dot - o->vma; |
252b5132 | 2857 | |
08da4cac | 2858 | /* Mark how big the output section must be to contain this now. */ |
252b5132 | 2859 | if (i->_cooked_size != 0) |
4cbfc3ac | 2860 | dot += i->_cooked_size / opb; |
252b5132 | 2861 | else |
4cbfc3ac | 2862 | dot += i->_raw_size / opb; |
b3327aad | 2863 | o->_raw_size = (dot - o->vma) * opb; |
252b5132 RH |
2864 | } |
2865 | else | |
2866 | { | |
2867 | i->output_offset = i->vma - output_section_statement->bfd_section->vma; | |
2868 | } | |
2869 | ||
2870 | return dot; | |
2871 | } | |
2872 | ||
33275c22 | 2873 | #define IGNORE_SECTION(bfd, s) \ |
d1778b88 AM |
2874 | (((bfd_get_section_flags (bfd, s) & (SEC_ALLOC | SEC_LOAD)) \ |
2875 | != (SEC_ALLOC | SEC_LOAD)) \ | |
33275c22 | 2876 | || bfd_section_size (bfd, s) == 0) |
d1778b88 | 2877 | |
252b5132 RH |
2878 | /* Check to see if any allocated sections overlap with other allocated |
2879 | sections. This can happen when the linker script specifically specifies | |
2880 | the output section addresses of the two sections. */ | |
08da4cac | 2881 | |
252b5132 RH |
2882 | static void |
2883 | lang_check_section_addresses () | |
2884 | { | |
08da4cac | 2885 | asection *s; |
f6af82bd | 2886 | unsigned opb = bfd_octets_per_byte (output_bfd); |
252b5132 RH |
2887 | |
2888 | /* Scan all sections in the output list. */ | |
2889 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
33275c22 | 2890 | { |
08da4cac | 2891 | asection *os; |
5f992e62 | 2892 | |
33275c22 NC |
2893 | /* Ignore sections which are not loaded or which have no contents. */ |
2894 | if (IGNORE_SECTION (output_bfd, s)) | |
2895 | continue; | |
5f992e62 | 2896 | |
33275c22 NC |
2897 | /* Once we reach section 's' stop our seach. This prevents two |
2898 | warning messages from being produced, one for 'section A overlaps | |
2899 | section B' and one for 'section B overlaps section A'. */ | |
2900 | for (os = output_bfd->sections; os != s; os = os->next) | |
2901 | { | |
2902 | bfd_vma s_start; | |
2903 | bfd_vma s_end; | |
2904 | bfd_vma os_start; | |
2905 | bfd_vma os_end; | |
5f992e62 | 2906 | |
33275c22 NC |
2907 | /* Only consider loadable sections with real contents. */ |
2908 | if (IGNORE_SECTION (output_bfd, os)) | |
2909 | continue; | |
252b5132 | 2910 | |
33275c22 NC |
2911 | /* We must check the sections' LMA addresses not their |
2912 | VMA addresses because overlay sections can have | |
2913 | overlapping VMAs but they must have distinct LMAs. */ | |
2914 | s_start = bfd_section_lma (output_bfd, s); | |
2915 | os_start = bfd_section_lma (output_bfd, os); | |
9e4ed18c TW |
2916 | s_end = s_start + bfd_section_size (output_bfd, s) / opb - 1; |
2917 | os_end = os_start + bfd_section_size (output_bfd, os) / opb - 1; | |
5f992e62 | 2918 | |
33275c22 NC |
2919 | /* Look for an overlap. */ |
2920 | if ((s_end < os_start) || (s_start > os_end)) | |
2921 | continue; | |
5f992e62 | 2922 | |
33275c22 | 2923 | einfo ( |
252b5132 | 2924 | _("%X%P: section %s [%V -> %V] overlaps section %s [%V -> %V]\n"), |
33275c22 | 2925 | s->name, s_start, s_end, os->name, os_start, os_end); |
5f992e62 | 2926 | |
33275c22 NC |
2927 | /* Once we have found one overlap for this section, |
2928 | stop looking for others. */ | |
2929 | break; | |
2930 | } | |
2931 | } | |
252b5132 RH |
2932 | } |
2933 | ||
562d3460 TW |
2934 | /* Make sure the new address is within the region. We explicitly permit the |
2935 | current address to be at the exact end of the region when the address is | |
2936 | non-zero, in case the region is at the end of addressable memory and the | |
5f992e62 | 2937 | calculation wraps around. */ |
562d3460 TW |
2938 | |
2939 | static void | |
2940 | os_region_check (os, region, tree, base) | |
08da4cac KH |
2941 | lang_output_section_statement_type *os; |
2942 | struct memory_region_struct *region; | |
2943 | etree_type *tree; | |
2944 | bfd_vma base; | |
562d3460 TW |
2945 | { |
2946 | if ((region->current < region->origin | |
2947 | || (region->current - region->origin > region->length)) | |
2948 | && ((region->current != region->origin + region->length) | |
b7a26f91 | 2949 | || base == 0)) |
562d3460 TW |
2950 | { |
2951 | if (tree != (etree_type *) NULL) | |
b7a26f91 KH |
2952 | { |
2953 | einfo (_("%X%P: address 0x%v of %B section %s is not within region %s\n"), | |
2954 | region->current, | |
2955 | os->bfd_section->owner, | |
2956 | os->bfd_section->name, | |
2957 | region->name); | |
2958 | } | |
562d3460 | 2959 | else |
b7a26f91 KH |
2960 | { |
2961 | einfo (_("%X%P: region %s is full (%B section %s)\n"), | |
2962 | region->name, | |
2963 | os->bfd_section->owner, | |
2964 | os->bfd_section->name); | |
2965 | } | |
562d3460 TW |
2966 | /* Reset the region pointer. */ |
2967 | region->current = region->origin; | |
2968 | } | |
2969 | } | |
2970 | ||
252b5132 RH |
2971 | /* Set the sizes for all the output sections. */ |
2972 | ||
2d20f7bf | 2973 | static bfd_vma |
cf888e70 NC |
2974 | lang_size_sections_1 (s, output_section_statement, prev, fill, dot, relax, |
2975 | check_regions) | |
08da4cac KH |
2976 | lang_statement_union_type *s; |
2977 | lang_output_section_statement_type *output_section_statement; | |
2978 | lang_statement_union_type **prev; | |
2c382fb6 | 2979 | fill_type *fill; |
252b5132 | 2980 | bfd_vma dot; |
b34976b6 | 2981 | bfd_boolean *relax; |
cf888e70 | 2982 | bfd_boolean check_regions; |
252b5132 | 2983 | { |
5f992e62 | 2984 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
f6af82bd | 2985 | ldfile_output_machine); |
4cbfc3ac | 2986 | |
252b5132 | 2987 | /* Size up the sections from their constituent parts. */ |
bba1a0c0 | 2988 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
2989 | { |
2990 | switch (s->header.type) | |
2991 | { | |
2992 | case lang_output_section_statement_enum: | |
2993 | { | |
2994 | bfd_vma after; | |
d1778b88 | 2995 | lang_output_section_statement_type *os; |
252b5132 | 2996 | |
d1778b88 | 2997 | os = &s->output_section_statement; |
252b5132 RH |
2998 | if (os->bfd_section == NULL) |
2999 | /* This section was never actually created. */ | |
3000 | break; | |
3001 | ||
3002 | /* If this is a COFF shared library section, use the size and | |
3003 | address from the input section. FIXME: This is COFF | |
3004 | specific; it would be cleaner if there were some other way | |
3005 | to do this, but nothing simple comes to mind. */ | |
3006 | if ((os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
3007 | { | |
08da4cac | 3008 | asection *input; |
252b5132 RH |
3009 | |
3010 | if (os->children.head == NULL | |
bba1a0c0 | 3011 | || os->children.head->header.next != NULL |
252b5132 RH |
3012 | || os->children.head->header.type != lang_input_section_enum) |
3013 | einfo (_("%P%X: Internal error on COFF shared library section %s\n"), | |
3014 | os->name); | |
3015 | ||
3016 | input = os->children.head->input_section.section; | |
3017 | bfd_set_section_vma (os->bfd_section->owner, | |
3018 | os->bfd_section, | |
3019 | bfd_section_vma (input->owner, input)); | |
3020 | os->bfd_section->_raw_size = input->_raw_size; | |
3021 | break; | |
3022 | } | |
3023 | ||
3024 | if (bfd_is_abs_section (os->bfd_section)) | |
3025 | { | |
3026 | /* No matter what happens, an abs section starts at zero. */ | |
3027 | ASSERT (os->bfd_section->vma == 0); | |
3028 | } | |
3029 | else | |
3030 | { | |
3031 | if (os->addr_tree == (etree_type *) NULL) | |
3032 | { | |
3033 | /* No address specified for this section, get one | |
3034 | from the region specification. */ | |
3035 | if (os->region == (lang_memory_region_type *) NULL | |
3036 | || (((bfd_get_section_flags (output_bfd, os->bfd_section) | |
3037 | & (SEC_ALLOC | SEC_LOAD)) != 0) | |
3038 | && os->region->name[0] == '*' | |
3039 | && strcmp (os->region->name, "*default*") == 0)) | |
3040 | { | |
3041 | os->region = lang_memory_default (os->bfd_section); | |
3042 | } | |
3043 | ||
3044 | /* If a loadable section is using the default memory | |
3045 | region, and some non default memory regions were | |
3046 | defined, issue a warning. */ | |
3047 | if ((bfd_get_section_flags (output_bfd, os->bfd_section) | |
3048 | & (SEC_ALLOC | SEC_LOAD)) != 0 | |
d08a14c3 AM |
3049 | && (bfd_get_section_flags (output_bfd, os->bfd_section) |
3050 | & SEC_NEVER_LOAD) == 0 | |
252b5132 | 3051 | && ! link_info.relocateable |
cf888e70 | 3052 | && check_regions |
252b5132 RH |
3053 | && strcmp (os->region->name, "*default*") == 0 |
3054 | && lang_memory_region_list != NULL | |
d1778b88 AM |
3055 | && (strcmp (lang_memory_region_list->name, |
3056 | "*default*") != 0 | |
252b5132 RH |
3057 | || lang_memory_region_list->next != NULL)) |
3058 | einfo (_("%P: warning: no memory region specified for section `%s'\n"), | |
d1778b88 AM |
3059 | bfd_get_section_name (output_bfd, |
3060 | os->bfd_section)); | |
252b5132 RH |
3061 | |
3062 | dot = os->region->current; | |
5f992e62 | 3063 | |
252b5132 RH |
3064 | if (os->section_alignment == -1) |
3065 | { | |
3066 | bfd_vma olddot; | |
3067 | ||
3068 | olddot = dot; | |
d1778b88 AM |
3069 | dot = align_power (dot, |
3070 | os->bfd_section->alignment_power); | |
252b5132 RH |
3071 | |
3072 | if (dot != olddot && config.warn_section_align) | |
3073 | einfo (_("%P: warning: changing start of section %s by %u bytes\n"), | |
3074 | os->name, (unsigned int) (dot - olddot)); | |
3075 | } | |
3076 | } | |
3077 | else | |
3078 | { | |
3079 | etree_value_type r; | |
3080 | ||
3081 | r = exp_fold_tree (os->addr_tree, | |
3082 | abs_output_section, | |
3083 | lang_allocating_phase_enum, | |
3084 | dot, &dot); | |
7c519c12 AM |
3085 | if (!r.valid_p) |
3086 | einfo (_("%F%S: non constant address expression for section %s\n"), | |
3087 | os->name); | |
3088 | ||
252b5132 RH |
3089 | dot = r.value + r.section->bfd_section->vma; |
3090 | } | |
5f992e62 | 3091 | |
252b5132 RH |
3092 | /* The section starts here. |
3093 | First, align to what the section needs. */ | |
3094 | ||
3095 | if (os->section_alignment != -1) | |
3096 | dot = align_power (dot, os->section_alignment); | |
3097 | ||
3098 | bfd_set_section_vma (0, os->bfd_section, dot); | |
5f992e62 | 3099 | |
252b5132 RH |
3100 | os->bfd_section->output_offset = 0; |
3101 | } | |
3102 | ||
2d20f7bf | 3103 | lang_size_sections_1 (os->children.head, os, &os->children.head, |
cf888e70 | 3104 | os->fill, dot, relax, check_regions); |
5f992e62 | 3105 | |
08da4cac KH |
3106 | /* Put the section within the requested block size, or |
3107 | align at the block boundary. */ | |
c553bb91 | 3108 | after = align_n (os->bfd_section->vma |
32edc927 | 3109 | + os->bfd_section->_raw_size / opb, |
252b5132 RH |
3110 | (bfd_vma) os->block_value); |
3111 | ||
3112 | if (bfd_is_abs_section (os->bfd_section)) | |
3113 | ASSERT (after == os->bfd_section->vma); | |
13ae64f3 | 3114 | else if ((os->bfd_section->flags & SEC_HAS_CONTENTS) == 0 |
704afa60 JJ |
3115 | && (os->bfd_section->flags & SEC_THREAD_LOCAL) |
3116 | && ! link_info.relocateable) | |
13ae64f3 | 3117 | os->bfd_section->_raw_size = 0; |
252b5132 | 3118 | else |
5f992e62 | 3119 | os->bfd_section->_raw_size = |
08da4cac | 3120 | (after - os->bfd_section->vma) * opb; |
9f88b410 | 3121 | |
4cbfc3ac | 3122 | dot = os->bfd_section->vma + os->bfd_section->_raw_size / opb; |
b34976b6 | 3123 | os->processed = TRUE; |
252b5132 | 3124 | |
9f88b410 RS |
3125 | if (os->update_dot_tree != 0) |
3126 | exp_fold_tree (os->update_dot_tree, abs_output_section, | |
3127 | lang_allocating_phase_enum, dot, &dot); | |
3128 | ||
252b5132 RH |
3129 | /* Update dot in the region ? |
3130 | We only do this if the section is going to be allocated, | |
3131 | since unallocated sections do not contribute to the region's | |
13392b77 | 3132 | overall size in memory. |
5f992e62 | 3133 | |
cce4c4c5 NC |
3134 | If the SEC_NEVER_LOAD bit is not set, it will affect the |
3135 | addresses of sections after it. We have to update | |
3136 | dot. */ | |
252b5132 | 3137 | if (os->region != (lang_memory_region_type *) NULL |
cce4c4c5 NC |
3138 | && ((bfd_get_section_flags (output_bfd, os->bfd_section) |
3139 | & SEC_NEVER_LOAD) == 0 | |
3140 | || (bfd_get_section_flags (output_bfd, os->bfd_section) | |
3141 | & (SEC_ALLOC | SEC_LOAD)))) | |
252b5132 RH |
3142 | { |
3143 | os->region->current = dot; | |
5f992e62 | 3144 | |
cf888e70 NC |
3145 | if (check_regions) |
3146 | /* Make sure the new address is within the region. */ | |
3147 | os_region_check (os, os->region, os->addr_tree, | |
3148 | os->bfd_section->vma); | |
08da4cac KH |
3149 | |
3150 | /* If there's no load address specified, use the run | |
3151 | region as the load region. */ | |
3152 | if (os->lma_region == NULL && os->load_base == NULL) | |
3153 | os->lma_region = os->region; | |
3154 | ||
ee3cc2e2 | 3155 | if (os->lma_region != NULL && os->lma_region != os->region) |
08da4cac | 3156 | { |
ee3cc2e2 RS |
3157 | /* Set load_base, which will be handled later. */ |
3158 | os->load_base = exp_intop (os->lma_region->current); | |
3159 | os->lma_region->current += | |
3160 | os->bfd_section->_raw_size / opb; | |
cf888e70 NC |
3161 | if (check_regions) |
3162 | os_region_check (os, os->lma_region, NULL, | |
3163 | os->bfd_section->lma); | |
08da4cac | 3164 | } |
252b5132 RH |
3165 | } |
3166 | } | |
3167 | break; | |
3168 | ||
3169 | case lang_constructors_statement_enum: | |
2d20f7bf JJ |
3170 | dot = lang_size_sections_1 (constructor_list.head, |
3171 | output_section_statement, | |
3172 | &s->wild_statement.children.head, | |
cf888e70 | 3173 | fill, dot, relax, check_regions); |
252b5132 RH |
3174 | break; |
3175 | ||
3176 | case lang_data_statement_enum: | |
3177 | { | |
3178 | unsigned int size = 0; | |
3179 | ||
08da4cac KH |
3180 | s->data_statement.output_vma = |
3181 | dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
3182 | s->data_statement.output_section = |
3183 | output_section_statement->bfd_section; | |
3184 | ||
3185 | switch (s->data_statement.type) | |
3186 | { | |
08da4cac KH |
3187 | default: |
3188 | abort (); | |
252b5132 RH |
3189 | case QUAD: |
3190 | case SQUAD: | |
3191 | size = QUAD_SIZE; | |
3192 | break; | |
3193 | case LONG: | |
3194 | size = LONG_SIZE; | |
3195 | break; | |
3196 | case SHORT: | |
3197 | size = SHORT_SIZE; | |
3198 | break; | |
3199 | case BYTE: | |
3200 | size = BYTE_SIZE; | |
3201 | break; | |
3202 | } | |
08da4cac KH |
3203 | if (size < opb) |
3204 | size = opb; | |
4cbfc3ac | 3205 | dot += size / opb; |
252b5132 RH |
3206 | output_section_statement->bfd_section->_raw_size += size; |
3207 | /* The output section gets contents, and then we inspect for | |
3208 | any flags set in the input script which override any ALLOC. */ | |
3209 | output_section_statement->bfd_section->flags |= SEC_HAS_CONTENTS; | |
08da4cac KH |
3210 | if (!(output_section_statement->flags & SEC_NEVER_LOAD)) |
3211 | { | |
3212 | output_section_statement->bfd_section->flags |= | |
3213 | SEC_ALLOC | SEC_LOAD; | |
3214 | } | |
252b5132 RH |
3215 | } |
3216 | break; | |
3217 | ||
3218 | case lang_reloc_statement_enum: | |
3219 | { | |
3220 | int size; | |
3221 | ||
3222 | s->reloc_statement.output_vma = | |
3223 | dot - output_section_statement->bfd_section->vma; | |
3224 | s->reloc_statement.output_section = | |
3225 | output_section_statement->bfd_section; | |
3226 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
4cbfc3ac | 3227 | dot += size / opb; |
252b5132 RH |
3228 | output_section_statement->bfd_section->_raw_size += size; |
3229 | } | |
3230 | break; | |
5f992e62 | 3231 | |
252b5132 RH |
3232 | case lang_wild_statement_enum: |
3233 | ||
2d20f7bf JJ |
3234 | dot = lang_size_sections_1 (s->wild_statement.children.head, |
3235 | output_section_statement, | |
3236 | &s->wild_statement.children.head, | |
cf888e70 | 3237 | fill, dot, relax, check_regions); |
252b5132 RH |
3238 | |
3239 | break; | |
3240 | ||
3241 | case lang_object_symbols_statement_enum: | |
3242 | link_info.create_object_symbols_section = | |
3243 | output_section_statement->bfd_section; | |
3244 | break; | |
3245 | case lang_output_statement_enum: | |
3246 | case lang_target_statement_enum: | |
3247 | break; | |
3248 | case lang_input_section_enum: | |
3249 | { | |
3250 | asection *i; | |
3251 | ||
3252 | i = (*prev)->input_section.section; | |
3253 | if (! relax) | |
3254 | { | |
3255 | if (i->_cooked_size == 0) | |
3256 | i->_cooked_size = i->_raw_size; | |
3257 | } | |
3258 | else | |
3259 | { | |
b34976b6 | 3260 | bfd_boolean again; |
252b5132 RH |
3261 | |
3262 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) | |
3263 | einfo (_("%P%F: can't relax section: %E\n")); | |
3264 | if (again) | |
b34976b6 | 3265 | *relax = TRUE; |
252b5132 | 3266 | } |
b3327aad AM |
3267 | dot = size_input_section (prev, output_section_statement, |
3268 | output_section_statement->fill, dot); | |
252b5132 RH |
3269 | } |
3270 | break; | |
3271 | case lang_input_statement_enum: | |
3272 | break; | |
3273 | case lang_fill_statement_enum: | |
08da4cac KH |
3274 | s->fill_statement.output_section = |
3275 | output_section_statement->bfd_section; | |
252b5132 RH |
3276 | |
3277 | fill = s->fill_statement.fill; | |
3278 | break; | |
3279 | case lang_assignment_statement_enum: | |
3280 | { | |
3281 | bfd_vma newdot = dot; | |
3282 | ||
3283 | exp_fold_tree (s->assignment_statement.exp, | |
3284 | output_section_statement, | |
3285 | lang_allocating_phase_enum, | |
3286 | dot, | |
3287 | &newdot); | |
3288 | ||
3289 | if (newdot != dot) | |
3290 | { | |
252b5132 RH |
3291 | if (output_section_statement == abs_output_section) |
3292 | { | |
3293 | /* If we don't have an output section, then just adjust | |
3294 | the default memory address. */ | |
3295 | lang_memory_region_lookup ("*default*")->current = newdot; | |
3296 | } | |
b3327aad | 3297 | else |
252b5132 | 3298 | { |
b3327aad AM |
3299 | /* Insert a pad after this statement. We can't |
3300 | put the pad before when relaxing, in case the | |
3301 | assignment references dot. */ | |
3302 | insert_pad (&s->header.next, fill, (newdot - dot) * opb, | |
3303 | output_section_statement->bfd_section, dot); | |
3304 | ||
3305 | /* Don't neuter the pad below when relaxing. */ | |
3306 | s = s->header.next; | |
252b5132 RH |
3307 | } |
3308 | ||
3309 | dot = newdot; | |
3310 | } | |
3311 | } | |
3312 | break; | |
3313 | ||
3314 | case lang_padding_statement_enum: | |
c0c330a7 AM |
3315 | /* If this is the first time lang_size_sections is called, |
3316 | we won't have any padding statements. If this is the | |
3317 | second or later passes when relaxing, we should allow | |
3318 | padding to shrink. If padding is needed on this pass, it | |
3319 | will be added back in. */ | |
3320 | s->padding_statement.size = 0; | |
6e814ff8 AM |
3321 | |
3322 | /* Make sure output_offset is valid. If relaxation shrinks | |
3323 | the section and this pad isn't needed, it's possible to | |
3324 | have output_offset larger than the final size of the | |
3325 | section. bfd_set_section_contents will complain even for | |
3326 | a pad size of zero. */ | |
3327 | s->padding_statement.output_offset | |
3328 | = dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
3329 | break; |
3330 | ||
3331 | case lang_group_statement_enum: | |
2d20f7bf JJ |
3332 | dot = lang_size_sections_1 (s->group_statement.children.head, |
3333 | output_section_statement, | |
3334 | &s->group_statement.children.head, | |
cf888e70 | 3335 | fill, dot, relax, check_regions); |
252b5132 RH |
3336 | break; |
3337 | ||
3338 | default: | |
3339 | FAIL (); | |
3340 | break; | |
3341 | ||
c0c330a7 | 3342 | /* We can only get here when relaxing is turned on. */ |
252b5132 RH |
3343 | case lang_address_statement_enum: |
3344 | break; | |
3345 | } | |
3346 | prev = &s->header.next; | |
3347 | } | |
3348 | return dot; | |
3349 | } | |
3350 | ||
2d20f7bf | 3351 | bfd_vma |
cf888e70 NC |
3352 | lang_size_sections (s, output_section_statement, prev, fill, dot, relax, |
3353 | check_regions) | |
2d20f7bf JJ |
3354 | lang_statement_union_type *s; |
3355 | lang_output_section_statement_type *output_section_statement; | |
3356 | lang_statement_union_type **prev; | |
2c382fb6 | 3357 | fill_type *fill; |
2d20f7bf | 3358 | bfd_vma dot; |
b34976b6 | 3359 | bfd_boolean *relax; |
cf888e70 | 3360 | bfd_boolean check_regions; |
2d20f7bf JJ |
3361 | { |
3362 | bfd_vma result; | |
3363 | ||
3364 | exp_data_seg.phase = exp_dataseg_none; | |
3365 | result = lang_size_sections_1 (s, output_section_statement, prev, fill, | |
cf888e70 | 3366 | dot, relax, check_regions); |
2d20f7bf JJ |
3367 | if (exp_data_seg.phase == exp_dataseg_end_seen) |
3368 | { | |
3369 | /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_END pair was seen, check whether | |
3370 | a page could be saved in the data segment. */ | |
3371 | bfd_vma first, last; | |
3372 | ||
3373 | first = -exp_data_seg.base & (exp_data_seg.pagesize - 1); | |
3374 | last = exp_data_seg.end & (exp_data_seg.pagesize - 1); | |
3375 | if (first && last | |
3376 | && ((exp_data_seg.base & ~(exp_data_seg.pagesize - 1)) | |
3377 | != (exp_data_seg.end & ~(exp_data_seg.pagesize - 1))) | |
3378 | && first + last <= exp_data_seg.pagesize) | |
3379 | { | |
3380 | exp_data_seg.phase = exp_dataseg_adjust; | |
3381 | result = lang_size_sections_1 (s, output_section_statement, prev, | |
cf888e70 | 3382 | fill, dot, relax, check_regions); |
2d20f7bf JJ |
3383 | } |
3384 | } | |
3385 | ||
3386 | return result; | |
3387 | } | |
3388 | ||
252b5132 RH |
3389 | bfd_vma |
3390 | lang_do_assignments (s, output_section_statement, fill, dot) | |
08da4cac KH |
3391 | lang_statement_union_type *s; |
3392 | lang_output_section_statement_type *output_section_statement; | |
2c382fb6 | 3393 | fill_type *fill; |
252b5132 RH |
3394 | bfd_vma dot; |
3395 | { | |
5f992e62 AM |
3396 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
3397 | ldfile_output_machine); | |
4cbfc3ac | 3398 | |
bba1a0c0 | 3399 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
3400 | { |
3401 | switch (s->header.type) | |
3402 | { | |
3403 | case lang_constructors_statement_enum: | |
3404 | dot = lang_do_assignments (constructor_list.head, | |
3405 | output_section_statement, | |
3406 | fill, | |
3407 | dot); | |
3408 | break; | |
3409 | ||
3410 | case lang_output_section_statement_enum: | |
3411 | { | |
d1778b88 | 3412 | lang_output_section_statement_type *os; |
252b5132 | 3413 | |
d1778b88 | 3414 | os = &(s->output_section_statement); |
252b5132 RH |
3415 | if (os->bfd_section != NULL) |
3416 | { | |
3417 | dot = os->bfd_section->vma; | |
3418 | (void) lang_do_assignments (os->children.head, os, | |
3419 | os->fill, dot); | |
4cbfc3ac TW |
3420 | dot = os->bfd_section->vma + os->bfd_section->_raw_size / opb; |
3421 | ||
252b5132 | 3422 | } |
c13b1b77 | 3423 | if (os->load_base) |
252b5132 RH |
3424 | { |
3425 | /* If nothing has been placed into the output section then | |
4de2d33d | 3426 | it won't have a bfd_section. */ |
5f992e62 | 3427 | if (os->bfd_section) |
252b5132 | 3428 | { |
5f992e62 | 3429 | os->bfd_section->lma |
08da4cac KH |
3430 | = exp_get_abs_int (os->load_base, 0, "load base", |
3431 | lang_final_phase_enum); | |
252b5132 RH |
3432 | } |
3433 | } | |
3434 | } | |
3435 | break; | |
3436 | case lang_wild_statement_enum: | |
3437 | ||
3438 | dot = lang_do_assignments (s->wild_statement.children.head, | |
3439 | output_section_statement, | |
3440 | fill, dot); | |
3441 | ||
3442 | break; | |
3443 | ||
3444 | case lang_object_symbols_statement_enum: | |
3445 | case lang_output_statement_enum: | |
3446 | case lang_target_statement_enum: | |
3447 | #if 0 | |
3448 | case lang_common_statement_enum: | |
3449 | #endif | |
3450 | break; | |
3451 | case lang_data_statement_enum: | |
3452 | { | |
3453 | etree_value_type value; | |
3454 | ||
3455 | value = exp_fold_tree (s->data_statement.exp, | |
3456 | abs_output_section, | |
3457 | lang_final_phase_enum, dot, &dot); | |
3458 | s->data_statement.value = value.value; | |
7c519c12 | 3459 | if (!value.valid_p) |
252b5132 RH |
3460 | einfo (_("%F%P: invalid data statement\n")); |
3461 | } | |
b7a26f91 KH |
3462 | { |
3463 | unsigned int size; | |
08da4cac KH |
3464 | switch (s->data_statement.type) |
3465 | { | |
3466 | default: | |
3467 | abort (); | |
3468 | case QUAD: | |
3469 | case SQUAD: | |
3470 | size = QUAD_SIZE; | |
3471 | break; | |
3472 | case LONG: | |
3473 | size = LONG_SIZE; | |
3474 | break; | |
3475 | case SHORT: | |
3476 | size = SHORT_SIZE; | |
3477 | break; | |
3478 | case BYTE: | |
3479 | size = BYTE_SIZE; | |
3480 | break; | |
3481 | } | |
3482 | if (size < opb) | |
3483 | size = opb; | |
3484 | dot += size / opb; | |
3485 | } | |
252b5132 RH |
3486 | break; |
3487 | ||
3488 | case lang_reloc_statement_enum: | |
3489 | { | |
3490 | etree_value_type value; | |
3491 | ||
3492 | value = exp_fold_tree (s->reloc_statement.addend_exp, | |
3493 | abs_output_section, | |
3494 | lang_final_phase_enum, dot, &dot); | |
3495 | s->reloc_statement.addend_value = value.value; | |
7c519c12 | 3496 | if (!value.valid_p) |
252b5132 RH |
3497 | einfo (_("%F%P: invalid reloc statement\n")); |
3498 | } | |
4cbfc3ac | 3499 | dot += bfd_get_reloc_size (s->reloc_statement.howto) / opb; |
252b5132 RH |
3500 | break; |
3501 | ||
3502 | case lang_input_section_enum: | |
3503 | { | |
3504 | asection *in = s->input_section.section; | |
3505 | ||
3506 | if (in->_cooked_size != 0) | |
4cbfc3ac | 3507 | dot += in->_cooked_size / opb; |
252b5132 | 3508 | else |
4cbfc3ac | 3509 | dot += in->_raw_size / opb; |
252b5132 RH |
3510 | } |
3511 | break; | |
3512 | ||
3513 | case lang_input_statement_enum: | |
3514 | break; | |
3515 | case lang_fill_statement_enum: | |
3516 | fill = s->fill_statement.fill; | |
3517 | break; | |
3518 | case lang_assignment_statement_enum: | |
3519 | { | |
3520 | exp_fold_tree (s->assignment_statement.exp, | |
3521 | output_section_statement, | |
3522 | lang_final_phase_enum, | |
3523 | dot, | |
3524 | &dot); | |
3525 | } | |
3526 | ||
3527 | break; | |
3528 | case lang_padding_statement_enum: | |
4cbfc3ac | 3529 | dot += s->padding_statement.size / opb; |
252b5132 RH |
3530 | break; |
3531 | ||
3532 | case lang_group_statement_enum: | |
3533 | dot = lang_do_assignments (s->group_statement.children.head, | |
3534 | output_section_statement, | |
3535 | fill, dot); | |
3536 | ||
3537 | break; | |
3538 | ||
3539 | default: | |
3540 | FAIL (); | |
3541 | break; | |
3542 | case lang_address_statement_enum: | |
3543 | break; | |
3544 | } | |
3545 | ||
3546 | } | |
3547 | return dot; | |
3548 | } | |
3549 | ||
3550 | /* Fix any .startof. or .sizeof. symbols. When the assemblers see the | |
3551 | operator .startof. (section_name), it produces an undefined symbol | |
3552 | .startof.section_name. Similarly, when it sees | |
3553 | .sizeof. (section_name), it produces an undefined symbol | |
3554 | .sizeof.section_name. For all the output sections, we look for | |
3555 | such symbols, and set them to the correct value. */ | |
3556 | ||
3557 | static void | |
3558 | lang_set_startof () | |
3559 | { | |
3560 | asection *s; | |
3561 | ||
3562 | if (link_info.relocateable) | |
3563 | return; | |
3564 | ||
3565 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
3566 | { | |
3567 | const char *secname; | |
3568 | char *buf; | |
3569 | struct bfd_link_hash_entry *h; | |
3570 | ||
3571 | secname = bfd_get_section_name (output_bfd, s); | |
3572 | buf = xmalloc (10 + strlen (secname)); | |
3573 | ||
3574 | sprintf (buf, ".startof.%s", secname); | |
b34976b6 | 3575 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
3576 | if (h != NULL && h->type == bfd_link_hash_undefined) |
3577 | { | |
3578 | h->type = bfd_link_hash_defined; | |
3579 | h->u.def.value = bfd_get_section_vma (output_bfd, s); | |
3580 | h->u.def.section = bfd_abs_section_ptr; | |
3581 | } | |
3582 | ||
3583 | sprintf (buf, ".sizeof.%s", secname); | |
b34976b6 | 3584 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
3585 | if (h != NULL && h->type == bfd_link_hash_undefined) |
3586 | { | |
b7a26f91 | 3587 | unsigned opb; |
d1778b88 | 3588 | |
b7a26f91 | 3589 | opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
d1778b88 | 3590 | ldfile_output_machine); |
252b5132 RH |
3591 | h->type = bfd_link_hash_defined; |
3592 | if (s->_cooked_size != 0) | |
4cbfc3ac | 3593 | h->u.def.value = s->_cooked_size / opb; |
252b5132 | 3594 | else |
4cbfc3ac | 3595 | h->u.def.value = s->_raw_size / opb; |
252b5132 RH |
3596 | h->u.def.section = bfd_abs_section_ptr; |
3597 | } | |
3598 | ||
3599 | free (buf); | |
3600 | } | |
3601 | } | |
3602 | ||
3603 | static void | |
3604 | lang_finish () | |
3605 | { | |
3606 | struct bfd_link_hash_entry *h; | |
b34976b6 | 3607 | bfd_boolean warn; |
252b5132 RH |
3608 | |
3609 | if (link_info.relocateable || link_info.shared) | |
b34976b6 | 3610 | warn = FALSE; |
252b5132 | 3611 | else |
b34976b6 | 3612 | warn = TRUE; |
252b5132 | 3613 | |
e3e942e9 | 3614 | if (entry_symbol.name == (const char *) NULL) |
252b5132 RH |
3615 | { |
3616 | /* No entry has been specified. Look for start, but don't warn | |
3617 | if we don't find it. */ | |
e3e942e9 | 3618 | entry_symbol.name = "start"; |
b34976b6 | 3619 | warn = FALSE; |
252b5132 RH |
3620 | } |
3621 | ||
e3e942e9 | 3622 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name, |
b34976b6 | 3623 | FALSE, FALSE, TRUE); |
252b5132 RH |
3624 | if (h != (struct bfd_link_hash_entry *) NULL |
3625 | && (h->type == bfd_link_hash_defined | |
3626 | || h->type == bfd_link_hash_defweak) | |
3627 | && h->u.def.section->output_section != NULL) | |
3628 | { | |
3629 | bfd_vma val; | |
3630 | ||
3631 | val = (h->u.def.value | |
3632 | + bfd_get_section_vma (output_bfd, | |
3633 | h->u.def.section->output_section) | |
3634 | + h->u.def.section->output_offset); | |
3635 | if (! bfd_set_start_address (output_bfd, val)) | |
e3e942e9 | 3636 | einfo (_("%P%F:%s: can't set start address\n"), entry_symbol.name); |
252b5132 RH |
3637 | } |
3638 | else | |
3639 | { | |
3640 | bfd_vma val; | |
5f992e62 | 3641 | const char *send; |
252b5132 RH |
3642 | |
3643 | /* We couldn't find the entry symbol. Try parsing it as a | |
3644 | number. */ | |
e3e942e9 | 3645 | val = bfd_scan_vma (entry_symbol.name, &send, 0); |
252b5132 RH |
3646 | if (*send == '\0') |
3647 | { | |
3648 | if (! bfd_set_start_address (output_bfd, val)) | |
3649 | einfo (_("%P%F: can't set start address\n")); | |
3650 | } | |
3651 | else | |
3652 | { | |
3653 | asection *ts; | |
3654 | ||
3655 | /* Can't find the entry symbol, and it's not a number. Use | |
3656 | the first address in the text section. */ | |
1e281515 | 3657 | ts = bfd_get_section_by_name (output_bfd, entry_section); |
252b5132 RH |
3658 | if (ts != (asection *) NULL) |
3659 | { | |
3660 | if (warn) | |
3661 | einfo (_("%P: warning: cannot find entry symbol %s; defaulting to %V\n"), | |
e3e942e9 AM |
3662 | entry_symbol.name, |
3663 | bfd_get_section_vma (output_bfd, ts)); | |
252b5132 RH |
3664 | if (! bfd_set_start_address (output_bfd, |
3665 | bfd_get_section_vma (output_bfd, | |
3666 | ts))) | |
3667 | einfo (_("%P%F: can't set start address\n")); | |
3668 | } | |
3669 | else | |
3670 | { | |
3671 | if (warn) | |
3672 | einfo (_("%P: warning: cannot find entry symbol %s; not setting start address\n"), | |
e3e942e9 | 3673 | entry_symbol.name); |
252b5132 RH |
3674 | } |
3675 | } | |
3676 | } | |
3677 | } | |
3678 | ||
3679 | /* This is a small function used when we want to ignore errors from | |
3680 | BFD. */ | |
3681 | ||
3682 | static void | |
3683 | #ifdef ANSI_PROTOTYPES | |
87f2a346 | 3684 | ignore_bfd_errors (const char *s ATTRIBUTE_UNUSED, ...) |
252b5132 RH |
3685 | #else |
3686 | ignore_bfd_errors (s) | |
87f2a346 | 3687 | const char *s ATTRIBUTE_UNUSED; |
252b5132 RH |
3688 | #endif |
3689 | { | |
3690 | /* Don't do anything. */ | |
3691 | } | |
3692 | ||
3693 | /* Check that the architecture of all the input files is compatible | |
3694 | with the output file. Also call the backend to let it do any | |
3695 | other checking that is needed. */ | |
3696 | ||
3697 | static void | |
3698 | lang_check () | |
3699 | { | |
3700 | lang_statement_union_type *file; | |
3701 | bfd *input_bfd; | |
5f992e62 | 3702 | const bfd_arch_info_type *compatible; |
252b5132 RH |
3703 | |
3704 | for (file = file_chain.head; | |
3705 | file != (lang_statement_union_type *) NULL; | |
3706 | file = file->input_statement.next) | |
3707 | { | |
3708 | input_bfd = file->input_statement.the_bfd; | |
312b768e NC |
3709 | compatible = bfd_arch_get_compatible (input_bfd, output_bfd, |
3710 | command_line.accept_unknown_input_arch); | |
30cba025 AM |
3711 | |
3712 | /* In general it is not possible to perform a relocatable | |
3713 | link between differing object formats when the input | |
3714 | file has relocations, because the relocations in the | |
3715 | input format may not have equivalent representations in | |
3716 | the output format (and besides BFD does not translate | |
3717 | relocs for other link purposes than a final link). */ | |
d35a52e2 | 3718 | if ((link_info.relocateable || link_info.emitrelocations) |
30cba025 | 3719 | && (compatible == NULL |
d35a52e2 | 3720 | || bfd_get_flavour (input_bfd) != bfd_get_flavour (output_bfd)) |
30cba025 AM |
3721 | && (bfd_get_file_flags (input_bfd) & HAS_RELOC) != 0) |
3722 | { | |
3723 | einfo (_("%P%F: Relocatable linking with relocations from format %s (%B) to format %s (%B) is not supported\n"), | |
3724 | bfd_get_target (input_bfd), input_bfd, | |
3725 | bfd_get_target (output_bfd), output_bfd); | |
3726 | /* einfo with %F exits. */ | |
3727 | } | |
3728 | ||
252b5132 RH |
3729 | if (compatible == NULL) |
3730 | { | |
3731 | if (command_line.warn_mismatch) | |
3732 | einfo (_("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n"), | |
3733 | bfd_printable_name (input_bfd), input_bfd, | |
3734 | bfd_printable_name (output_bfd)); | |
3735 | } | |
b9247304 | 3736 | else if (bfd_count_sections (input_bfd)) |
252b5132 | 3737 | { |
b9247304 | 3738 | /* If the input bfd has no contents, it shouldn't set the |
b7a26f91 | 3739 | private data of the output bfd. */ |
b9247304 | 3740 | |
252b5132 RH |
3741 | bfd_error_handler_type pfn = NULL; |
3742 | ||
3743 | /* If we aren't supposed to warn about mismatched input | |
3744 | files, temporarily set the BFD error handler to a | |
3745 | function which will do nothing. We still want to call | |
3746 | bfd_merge_private_bfd_data, since it may set up | |
3747 | information which is needed in the output file. */ | |
3748 | if (! command_line.warn_mismatch) | |
3749 | pfn = bfd_set_error_handler (ignore_bfd_errors); | |
3750 | if (! bfd_merge_private_bfd_data (input_bfd, output_bfd)) | |
3751 | { | |
3752 | if (command_line.warn_mismatch) | |
3753 | einfo (_("%E%X: failed to merge target specific data of file %B\n"), | |
3754 | input_bfd); | |
3755 | } | |
3756 | if (! command_line.warn_mismatch) | |
3757 | bfd_set_error_handler (pfn); | |
3758 | } | |
3759 | } | |
3760 | } | |
3761 | ||
3762 | /* Look through all the global common symbols and attach them to the | |
3763 | correct section. The -sort-common command line switch may be used | |
3764 | to roughly sort the entries by size. */ | |
3765 | ||
3766 | static void | |
3767 | lang_common () | |
3768 | { | |
4818e05f AM |
3769 | if (command_line.inhibit_common_definition) |
3770 | return; | |
252b5132 RH |
3771 | if (link_info.relocateable |
3772 | && ! command_line.force_common_definition) | |
3773 | return; | |
3774 | ||
3775 | if (! config.sort_common) | |
3776 | bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL); | |
3777 | else | |
3778 | { | |
3779 | int power; | |
3780 | ||
3781 | for (power = 4; power >= 0; power--) | |
3782 | bfd_link_hash_traverse (link_info.hash, lang_one_common, | |
3783 | (PTR) &power); | |
3784 | } | |
3785 | } | |
3786 | ||
3787 | /* Place one common symbol in the correct section. */ | |
3788 | ||
b34976b6 | 3789 | static bfd_boolean |
252b5132 RH |
3790 | lang_one_common (h, info) |
3791 | struct bfd_link_hash_entry *h; | |
3792 | PTR info; | |
3793 | { | |
3794 | unsigned int power_of_two; | |
3795 | bfd_vma size; | |
3796 | asection *section; | |
5f992e62 AM |
3797 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
3798 | ldfile_output_machine); | |
252b5132 RH |
3799 | |
3800 | if (h->type != bfd_link_hash_common) | |
b34976b6 | 3801 | return TRUE; |
252b5132 RH |
3802 | |
3803 | size = h->u.c.size; | |
3804 | power_of_two = h->u.c.p->alignment_power; | |
3805 | ||
3806 | if (config.sort_common | |
3807 | && power_of_two < (unsigned int) *(int *) info) | |
b34976b6 | 3808 | return TRUE; |
252b5132 RH |
3809 | |
3810 | section = h->u.c.p->section; | |
3811 | ||
3812 | /* Increase the size of the section. */ | |
c553bb91 AM |
3813 | section->_cooked_size = align_n ((section->_cooked_size + opb - 1) / opb, |
3814 | (bfd_vma) 1 << power_of_two) * opb; | |
252b5132 RH |
3815 | |
3816 | /* Adjust the alignment if necessary. */ | |
3817 | if (power_of_two > section->alignment_power) | |
3818 | section->alignment_power = power_of_two; | |
3819 | ||
3820 | /* Change the symbol from common to defined. */ | |
3821 | h->type = bfd_link_hash_defined; | |
3822 | h->u.def.section = section; | |
3823 | h->u.def.value = section->_cooked_size; | |
3824 | ||
3825 | /* Increase the size of the section. */ | |
3826 | section->_cooked_size += size; | |
3827 | ||
3828 | /* Make sure the section is allocated in memory, and make sure that | |
3829 | it is no longer a common section. */ | |
3830 | section->flags |= SEC_ALLOC; | |
08da4cac | 3831 | section->flags &= ~SEC_IS_COMMON; |
252b5132 RH |
3832 | |
3833 | if (config.map_file != NULL) | |
3834 | { | |
b34976b6 | 3835 | static bfd_boolean header_printed; |
252b5132 RH |
3836 | int len; |
3837 | char *name; | |
3838 | char buf[50]; | |
3839 | ||
3840 | if (! header_printed) | |
3841 | { | |
3842 | minfo (_("\nAllocating common symbols\n")); | |
3843 | minfo (_("Common symbol size file\n\n")); | |
b34976b6 | 3844 | header_printed = TRUE; |
252b5132 RH |
3845 | } |
3846 | ||
3847 | name = demangle (h->root.string); | |
3848 | minfo ("%s", name); | |
3849 | len = strlen (name); | |
3850 | free (name); | |
3851 | ||
3852 | if (len >= 19) | |
3853 | { | |
3854 | print_nl (); | |
3855 | len = 0; | |
3856 | } | |
3857 | while (len < 20) | |
3858 | { | |
3859 | print_space (); | |
3860 | ++len; | |
3861 | } | |
3862 | ||
3863 | minfo ("0x"); | |
3864 | if (size <= 0xffffffff) | |
3865 | sprintf (buf, "%lx", (unsigned long) size); | |
3866 | else | |
3867 | sprintf_vma (buf, size); | |
3868 | minfo ("%s", buf); | |
3869 | len = strlen (buf); | |
3870 | ||
3871 | while (len < 16) | |
3872 | { | |
3873 | print_space (); | |
3874 | ++len; | |
3875 | } | |
3876 | ||
3877 | minfo ("%B\n", section->owner); | |
3878 | } | |
3879 | ||
b34976b6 | 3880 | return TRUE; |
252b5132 RH |
3881 | } |
3882 | ||
08da4cac KH |
3883 | /* Run through the input files and ensure that every input section has |
3884 | somewhere to go. If one is found without a destination then create | |
3885 | an input request and place it into the statement tree. */ | |
252b5132 RH |
3886 | |
3887 | static void | |
3888 | lang_place_orphans () | |
3889 | { | |
e50d8076 | 3890 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
252b5132 RH |
3891 | { |
3892 | asection *s; | |
3893 | ||
3894 | for (s = file->the_bfd->sections; | |
3895 | s != (asection *) NULL; | |
3896 | s = s->next) | |
3897 | { | |
3898 | if (s->output_section == (asection *) NULL) | |
3899 | { | |
396a2467 | 3900 | /* This section of the file is not attached, root |
08da4cac | 3901 | around for a sensible place for it to go. */ |
252b5132 RH |
3902 | |
3903 | if (file->just_syms_flag) | |
3904 | { | |
c2c01aa7 | 3905 | abort (); |
252b5132 RH |
3906 | } |
3907 | else if (strcmp (s->name, "COMMON") == 0) | |
3908 | { | |
3909 | /* This is a lonely common section which must have | |
3910 | come from an archive. We attach to the section | |
3911 | with the wildcard. */ | |
3912 | if (! link_info.relocateable | |
3913 | || command_line.force_common_definition) | |
3914 | { | |
3915 | if (default_common_section == NULL) | |
3916 | { | |
3917 | #if 0 | |
3918 | /* This message happens when using the | |
3919 | svr3.ifile linker script, so I have | |
3920 | disabled it. */ | |
3921 | info_msg (_("%P: no [COMMON] command, defaulting to .bss\n")); | |
3922 | #endif | |
3923 | default_common_section = | |
3924 | lang_output_section_statement_lookup (".bss"); | |
3925 | ||
3926 | } | |
39dcfe18 AM |
3927 | lang_add_section (&default_common_section->children, s, |
3928 | default_common_section, file); | |
252b5132 RH |
3929 | } |
3930 | } | |
3931 | else if (ldemul_place_orphan (file, s)) | |
3932 | ; | |
3933 | else | |
3934 | { | |
39dcfe18 | 3935 | lang_output_section_statement_type *os; |
252b5132 | 3936 | |
39dcfe18 AM |
3937 | os = lang_output_section_statement_lookup (s->name); |
3938 | lang_add_section (&os->children, s, os, file); | |
252b5132 RH |
3939 | } |
3940 | } | |
3941 | } | |
3942 | } | |
3943 | } | |
3944 | ||
252b5132 | 3945 | void |
aa8804e4 | 3946 | lang_set_flags (ptr, flags, invert) |
252b5132 | 3947 | lang_memory_region_type *ptr; |
5f992e62 | 3948 | const char *flags; |
aa8804e4 | 3949 | int invert; |
252b5132 | 3950 | { |
aa8804e4 | 3951 | flagword *ptr_flags; |
252b5132 | 3952 | |
aa8804e4 | 3953 | ptr_flags = invert ? &ptr->not_flags : &ptr->flags; |
252b5132 RH |
3954 | while (*flags) |
3955 | { | |
3956 | switch (*flags) | |
3957 | { | |
252b5132 RH |
3958 | case 'A': case 'a': |
3959 | *ptr_flags |= SEC_ALLOC; | |
3960 | break; | |
3961 | ||
3962 | case 'R': case 'r': | |
3963 | *ptr_flags |= SEC_READONLY; | |
3964 | break; | |
3965 | ||
3966 | case 'W': case 'w': | |
3967 | *ptr_flags |= SEC_DATA; | |
3968 | break; | |
3969 | ||
3970 | case 'X': case 'x': | |
3971 | *ptr_flags |= SEC_CODE; | |
3972 | break; | |
3973 | ||
3974 | case 'L': case 'l': | |
3975 | case 'I': case 'i': | |
3976 | *ptr_flags |= SEC_LOAD; | |
3977 | break; | |
3978 | ||
3979 | default: | |
3980 | einfo (_("%P%F: invalid syntax in flags\n")); | |
3981 | break; | |
3982 | } | |
3983 | flags++; | |
3984 | } | |
3985 | } | |
3986 | ||
3987 | /* Call a function on each input file. This function will be called | |
3988 | on an archive, but not on the elements. */ | |
3989 | ||
3990 | void | |
3991 | lang_for_each_input_file (func) | |
3992 | void (*func) PARAMS ((lang_input_statement_type *)); | |
3993 | { | |
3994 | lang_input_statement_type *f; | |
3995 | ||
3996 | for (f = (lang_input_statement_type *) input_file_chain.head; | |
3997 | f != NULL; | |
3998 | f = (lang_input_statement_type *) f->next_real_file) | |
3999 | func (f); | |
4000 | } | |
4001 | ||
4002 | /* Call a function on each file. The function will be called on all | |
4003 | the elements of an archive which are included in the link, but will | |
4004 | not be called on the archive file itself. */ | |
4005 | ||
4006 | void | |
4007 | lang_for_each_file (func) | |
4008 | void (*func) PARAMS ((lang_input_statement_type *)); | |
4009 | { | |
e50d8076 | 4010 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 RH |
4011 | { |
4012 | func (f); | |
4013 | } | |
4014 | } | |
4015 | ||
4016 | #if 0 | |
4017 | ||
4018 | /* Not used. */ | |
4019 | ||
4020 | void | |
4021 | lang_for_each_input_section (func) | |
08da4cac | 4022 | void (*func) PARAMS ((bfd *ab, asection *as)); |
252b5132 | 4023 | { |
e50d8076 | 4024 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 | 4025 | { |
08da4cac | 4026 | asection *s; |
252b5132 RH |
4027 | |
4028 | for (s = f->the_bfd->sections; | |
4029 | s != (asection *) NULL; | |
4030 | s = s->next) | |
4031 | { | |
4032 | func (f->the_bfd, s); | |
4033 | } | |
4034 | } | |
4035 | } | |
4036 | ||
4037 | #endif | |
4038 | ||
4039 | void | |
4040 | ldlang_add_file (entry) | |
08da4cac | 4041 | lang_input_statement_type *entry; |
252b5132 RH |
4042 | { |
4043 | bfd **pp; | |
4044 | ||
4045 | lang_statement_append (&file_chain, | |
4046 | (lang_statement_union_type *) entry, | |
4047 | &entry->next); | |
4048 | ||
4049 | /* The BFD linker needs to have a list of all input BFDs involved in | |
4050 | a link. */ | |
4051 | ASSERT (entry->the_bfd->link_next == (bfd *) NULL); | |
4052 | ASSERT (entry->the_bfd != output_bfd); | |
4053 | for (pp = &link_info.input_bfds; | |
4054 | *pp != (bfd *) NULL; | |
4055 | pp = &(*pp)->link_next) | |
4056 | ; | |
4057 | *pp = entry->the_bfd; | |
4058 | entry->the_bfd->usrdata = (PTR) entry; | |
4059 | bfd_set_gp_size (entry->the_bfd, g_switch_value); | |
4060 | ||
4061 | /* Look through the sections and check for any which should not be | |
4062 | included in the link. We need to do this now, so that we can | |
4063 | notice when the backend linker tries to report multiple | |
4064 | definition errors for symbols which are in sections we aren't | |
4065 | going to link. FIXME: It might be better to entirely ignore | |
4066 | symbols which are defined in sections which are going to be | |
4067 | discarded. This would require modifying the backend linker for | |
4068 | each backend which might set the SEC_LINK_ONCE flag. If we do | |
4069 | this, we should probably handle SEC_EXCLUDE in the same way. */ | |
4070 | ||
4071 | bfd_map_over_sections (entry->the_bfd, section_already_linked, (PTR) entry); | |
4072 | } | |
4073 | ||
4074 | void | |
4075 | lang_add_output (name, from_script) | |
5f992e62 | 4076 | const char *name; |
252b5132 RH |
4077 | int from_script; |
4078 | { | |
4079 | /* Make -o on command line override OUTPUT in script. */ | |
7c519c12 | 4080 | if (!had_output_filename || !from_script) |
252b5132 RH |
4081 | { |
4082 | output_filename = name; | |
b34976b6 | 4083 | had_output_filename = TRUE; |
252b5132 RH |
4084 | } |
4085 | } | |
4086 | ||
252b5132 RH |
4087 | static lang_output_section_statement_type *current_section; |
4088 | ||
4089 | static int | |
4090 | topower (x) | |
4091 | int x; | |
4092 | { | |
4093 | unsigned int i = 1; | |
4094 | int l; | |
4095 | ||
4096 | if (x < 0) | |
4097 | return -1; | |
4098 | ||
5f992e62 | 4099 | for (l = 0; l < 32; l++) |
252b5132 RH |
4100 | { |
4101 | if (i >= (unsigned int) x) | |
4102 | return l; | |
4103 | i <<= 1; | |
4104 | } | |
4105 | ||
4106 | return 0; | |
4107 | } | |
4108 | ||
aea4bd9d | 4109 | lang_output_section_statement_type * |
252b5132 RH |
4110 | lang_enter_output_section_statement (output_section_statement_name, |
4111 | address_exp, sectype, block_value, | |
4112 | align, subalign, ebase) | |
4113 | const char *output_section_statement_name; | |
08da4cac | 4114 | etree_type *address_exp; |
252b5132 RH |
4115 | enum section_type sectype; |
4116 | bfd_vma block_value; | |
4117 | etree_type *align; | |
4118 | etree_type *subalign; | |
4119 | etree_type *ebase; | |
4120 | { | |
4121 | lang_output_section_statement_type *os; | |
4122 | ||
4123 | current_section = | |
4124 | os = | |
4125 | lang_output_section_statement_lookup (output_section_statement_name); | |
4126 | ||
08da4cac KH |
4127 | /* Add this statement to tree. */ |
4128 | #if 0 | |
4129 | add_statement (lang_output_section_statement_enum, | |
4130 | output_section_statement); | |
4131 | #endif | |
4132 | /* Make next things chain into subchain of this. */ | |
252b5132 | 4133 | |
08da4cac KH |
4134 | if (os->addr_tree == (etree_type *) NULL) |
4135 | { | |
4136 | os->addr_tree = address_exp; | |
4137 | } | |
252b5132 RH |
4138 | os->sectype = sectype; |
4139 | if (sectype != noload_section) | |
4140 | os->flags = SEC_NO_FLAGS; | |
4141 | else | |
4142 | os->flags = SEC_NEVER_LOAD; | |
4143 | os->block_value = block_value ? block_value : 1; | |
4144 | stat_ptr = &os->children; | |
4145 | ||
08da4cac KH |
4146 | os->subsection_alignment = |
4147 | topower (exp_get_value_int (subalign, -1, "subsection alignment", 0)); | |
4148 | os->section_alignment = | |
4149 | topower (exp_get_value_int (align, -1, "section alignment", 0)); | |
252b5132 RH |
4150 | |
4151 | os->load_base = ebase; | |
aea4bd9d | 4152 | return os; |
252b5132 RH |
4153 | } |
4154 | ||
252b5132 RH |
4155 | void |
4156 | lang_final () | |
4157 | { | |
4158 | lang_output_statement_type *new = | |
4159 | new_stat (lang_output_statement, stat_ptr); | |
4160 | ||
4161 | new->name = output_filename; | |
4162 | } | |
4163 | ||
08da4cac KH |
4164 | /* Reset the current counters in the regions. */ |
4165 | ||
e3dc8847 HPN |
4166 | void |
4167 | lang_reset_memory_regions () | |
252b5132 RH |
4168 | { |
4169 | lang_memory_region_type *p = lang_memory_region_list; | |
b3327aad | 4170 | asection *o; |
252b5132 RH |
4171 | |
4172 | for (p = lang_memory_region_list; | |
4173 | p != (lang_memory_region_type *) NULL; | |
4174 | p = p->next) | |
4175 | { | |
4176 | p->old_length = (bfd_size_type) (p->current - p->origin); | |
4177 | p->current = p->origin; | |
4178 | } | |
b3327aad AM |
4179 | |
4180 | for (o = output_bfd->sections; o != NULL; o = o->next) | |
4181 | o->_raw_size = 0; | |
252b5132 RH |
4182 | } |
4183 | ||
b6bf44ba AM |
4184 | /* If the wild pattern was marked KEEP, the member sections |
4185 | should be as well. */ | |
252b5132 RH |
4186 | |
4187 | static void | |
b6bf44ba | 4188 | gc_section_callback (ptr, sec, section, file, data) |
252b5132 | 4189 | lang_wild_statement_type *ptr; |
b6bf44ba | 4190 | struct wildcard_list *sec ATTRIBUTE_UNUSED; |
4dec4d4e | 4191 | asection *section; |
87f2a346 | 4192 | lang_input_statement_type *file ATTRIBUTE_UNUSED; |
5f992e62 | 4193 | PTR data ATTRIBUTE_UNUSED; |
252b5132 | 4194 | { |
4dec4d4e RH |
4195 | if (ptr->keep_sections) |
4196 | section->flags |= SEC_KEEP; | |
252b5132 RH |
4197 | } |
4198 | ||
b6bf44ba | 4199 | /* Handle a wild statement, marking it against GC. */ |
252b5132 RH |
4200 | |
4201 | static void | |
b6bf44ba | 4202 | lang_gc_wild (s) |
252b5132 | 4203 | lang_wild_statement_type *s; |
252b5132 | 4204 | { |
b6bf44ba | 4205 | walk_wild (s, gc_section_callback, NULL); |
252b5132 RH |
4206 | } |
4207 | ||
4208 | /* Iterate over sections marking them against GC. */ | |
4209 | ||
4210 | static void | |
4211 | lang_gc_sections_1 (s) | |
08da4cac | 4212 | lang_statement_union_type *s; |
252b5132 | 4213 | { |
bba1a0c0 | 4214 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
4215 | { |
4216 | switch (s->header.type) | |
4217 | { | |
4218 | case lang_wild_statement_enum: | |
b6bf44ba | 4219 | lang_gc_wild (&s->wild_statement); |
abc6ab0a | 4220 | break; |
252b5132 RH |
4221 | case lang_constructors_statement_enum: |
4222 | lang_gc_sections_1 (constructor_list.head); | |
4223 | break; | |
4224 | case lang_output_section_statement_enum: | |
4225 | lang_gc_sections_1 (s->output_section_statement.children.head); | |
4226 | break; | |
4227 | case lang_group_statement_enum: | |
4228 | lang_gc_sections_1 (s->group_statement.children.head); | |
4229 | break; | |
4230 | default: | |
4231 | break; | |
4232 | } | |
4233 | } | |
4234 | } | |
4235 | ||
4236 | static void | |
4237 | lang_gc_sections () | |
4238 | { | |
4239 | struct bfd_link_hash_entry *h; | |
e3e942e9 | 4240 | ldlang_undef_chain_list_type *ulist; |
252b5132 RH |
4241 | |
4242 | /* Keep all sections so marked in the link script. */ | |
4243 | ||
4244 | lang_gc_sections_1 (statement_list.head); | |
4245 | ||
e3e942e9 AM |
4246 | /* Keep all sections containing symbols undefined on the command-line, |
4247 | and the section containing the entry symbol. */ | |
252b5132 | 4248 | |
e3e942e9 | 4249 | for (ulist = link_info.gc_sym_list; ulist; ulist = ulist->next) |
252b5132 | 4250 | { |
5f992e62 | 4251 | h = bfd_link_hash_lookup (link_info.hash, ulist->name, |
b34976b6 | 4252 | FALSE, FALSE, FALSE); |
252b5132 RH |
4253 | |
4254 | if (h != (struct bfd_link_hash_entry *) NULL | |
08da4cac KH |
4255 | && (h->type == bfd_link_hash_defined |
4256 | || h->type == bfd_link_hash_defweak) | |
252b5132 RH |
4257 | && ! bfd_is_abs_section (h->u.def.section)) |
4258 | { | |
4259 | h->u.def.section->flags |= SEC_KEEP; | |
4260 | } | |
4261 | } | |
4262 | ||
4263 | bfd_gc_sections (output_bfd, &link_info); | |
4264 | } | |
4265 | ||
4266 | void | |
4267 | lang_process () | |
4268 | { | |
4269 | lang_reasonable_defaults (); | |
4270 | current_target = default_target; | |
4271 | ||
08da4cac KH |
4272 | /* Open the output file. */ |
4273 | lang_for_each_statement (ldlang_open_output); | |
252b5132 RH |
4274 | |
4275 | ldemul_create_output_section_statements (); | |
4276 | ||
08da4cac | 4277 | /* Add to the hash table all undefineds on the command line. */ |
252b5132 RH |
4278 | lang_place_undefineds (); |
4279 | ||
9503fd87 ILT |
4280 | already_linked_table_init (); |
4281 | ||
08da4cac | 4282 | /* Create a bfd for each input file. */ |
252b5132 | 4283 | current_target = default_target; |
b34976b6 | 4284 | open_input_bfds (statement_list.head, FALSE); |
252b5132 | 4285 | |
e3e942e9 AM |
4286 | link_info.gc_sym_list = &entry_symbol; |
4287 | if (entry_symbol.name == NULL) | |
4288 | link_info.gc_sym_list = ldlang_undef_chain_list_head; | |
4289 | ||
252b5132 RH |
4290 | ldemul_after_open (); |
4291 | ||
9503fd87 ILT |
4292 | already_linked_table_free (); |
4293 | ||
252b5132 RH |
4294 | /* Make sure that we're not mixing architectures. We call this |
4295 | after all the input files have been opened, but before we do any | |
4296 | other processing, so that any operations merge_private_bfd_data | |
4297 | does on the output file will be known during the rest of the | |
4298 | link. */ | |
4299 | lang_check (); | |
4300 | ||
4301 | /* Handle .exports instead of a version script if we're told to do so. */ | |
4302 | if (command_line.version_exports_section) | |
4303 | lang_do_version_exports_section (); | |
4304 | ||
4305 | /* Build all sets based on the information gathered from the input | |
4306 | files. */ | |
4307 | ldctor_build_sets (); | |
4308 | ||
4309 | /* Remove unreferenced sections if asked to. */ | |
4310 | if (command_line.gc_sections) | |
4311 | lang_gc_sections (); | |
4312 | ||
8550eb6e JJ |
4313 | /* If there were any SEC_MERGE sections, finish their merging, so that |
4314 | section sizes can be computed. This has to be done after GC of sections, | |
4315 | so that GCed sections are not merged, but before assigning output | |
4316 | sections, since removing whole input sections is hard then. */ | |
4317 | bfd_merge_sections (output_bfd, &link_info); | |
4318 | ||
08da4cac | 4319 | /* Size up the common data. */ |
252b5132 RH |
4320 | lang_common (); |
4321 | ||
4322 | /* Run through the contours of the script and attach input sections | |
08da4cac | 4323 | to the correct output sections. */ |
252b5132 RH |
4324 | map_input_to_output_sections (statement_list.head, (char *) NULL, |
4325 | (lang_output_section_statement_type *) NULL); | |
4326 | ||
08da4cac | 4327 | /* Find any sections not attached explicitly and handle them. */ |
252b5132 RH |
4328 | lang_place_orphans (); |
4329 | ||
862120bd AM |
4330 | if (! link_info.relocateable) |
4331 | { | |
4332 | /* Look for a text section and set the readonly attribute in it. */ | |
4333 | asection *found = bfd_get_section_by_name (output_bfd, ".text"); | |
4334 | ||
4335 | if (found != (asection *) NULL) | |
4336 | { | |
4337 | if (config.text_read_only) | |
4338 | found->flags |= SEC_READONLY; | |
4339 | else | |
4340 | found->flags &= ~SEC_READONLY; | |
4341 | } | |
4342 | } | |
4343 | ||
4344 | /* Do anything special before sizing sections. This is where ELF | |
4345 | and other back-ends size dynamic sections. */ | |
252b5132 RH |
4346 | ldemul_before_allocation (); |
4347 | ||
4bd5a393 AM |
4348 | if (!link_info.relocateable) |
4349 | strip_excluded_output_sections (); | |
4350 | ||
252b5132 RH |
4351 | /* We must record the program headers before we try to fix the |
4352 | section positions, since they will affect SIZEOF_HEADERS. */ | |
4353 | lang_record_phdrs (); | |
4354 | ||
b3327aad AM |
4355 | /* Size up the sections. */ |
4356 | lang_size_sections (statement_list.head, | |
4357 | abs_output_section, | |
cf888e70 NC |
4358 | &statement_list.head, 0, (bfd_vma) 0, NULL, |
4359 | command_line.relax ? FALSE : TRUE); | |
b3327aad | 4360 | |
08da4cac | 4361 | /* Now run around and relax if we can. */ |
252b5132 RH |
4362 | if (command_line.relax) |
4363 | { | |
252b5132 | 4364 | /* Keep relaxing until bfd_relax_section gives up. */ |
b34976b6 | 4365 | bfd_boolean relax_again; |
b3327aad | 4366 | |
252b5132 RH |
4367 | do |
4368 | { | |
e3dc8847 | 4369 | lang_reset_memory_regions (); |
252b5132 | 4370 | |
b34976b6 | 4371 | relax_again = FALSE; |
252b5132 RH |
4372 | |
4373 | /* Note: pe-dll.c does something like this also. If you find | |
4374 | you need to change this code, you probably need to change | |
08da4cac | 4375 | pe-dll.c also. DJ */ |
252b5132 RH |
4376 | |
4377 | /* Do all the assignments with our current guesses as to | |
4378 | section sizes. */ | |
4379 | lang_do_assignments (statement_list.head, | |
4380 | abs_output_section, | |
2c382fb6 | 4381 | (fill_type *) 0, (bfd_vma) 0); |
252b5132 RH |
4382 | |
4383 | /* Perform another relax pass - this time we know where the | |
0d6d936f | 4384 | globals are, so can make a better guess. */ |
252b5132 RH |
4385 | lang_size_sections (statement_list.head, |
4386 | abs_output_section, | |
0d6d936f | 4387 | &statement_list.head, 0, (bfd_vma) 0, |
cf888e70 | 4388 | &relax_again, FALSE); |
252b5132 RH |
4389 | } |
4390 | while (relax_again); | |
cf888e70 NC |
4391 | |
4392 | /* Final extra sizing to report errors. */ | |
4393 | lang_reset_memory_regions (); | |
4394 | lang_do_assignments (statement_list.head, | |
4395 | abs_output_section, | |
4396 | (fill_type *) 0, (bfd_vma) 0); | |
4397 | lang_size_sections (statement_list.head, | |
4398 | abs_output_section, | |
4399 | & statement_list.head, 0, (bfd_vma) 0, | |
4400 | NULL, TRUE); | |
252b5132 | 4401 | } |
252b5132 RH |
4402 | |
4403 | /* See if anything special should be done now we know how big | |
4404 | everything is. */ | |
4405 | ldemul_after_allocation (); | |
4406 | ||
4407 | /* Fix any .startof. or .sizeof. symbols. */ | |
4408 | lang_set_startof (); | |
4409 | ||
08da4cac KH |
4410 | /* Do all the assignments, now that we know the final resting places |
4411 | of all the symbols. */ | |
252b5132 RH |
4412 | |
4413 | lang_do_assignments (statement_list.head, | |
4414 | abs_output_section, | |
2c382fb6 | 4415 | (fill_type *) 0, (bfd_vma) 0); |
252b5132 RH |
4416 | |
4417 | /* Make sure that the section addresses make sense. */ | |
4418 | if (! link_info.relocateable | |
4419 | && command_line.check_section_addresses) | |
4420 | lang_check_section_addresses (); | |
5f992e62 | 4421 | |
08da4cac | 4422 | /* Final stuffs. */ |
252b5132 RH |
4423 | |
4424 | ldemul_finish (); | |
4425 | lang_finish (); | |
4426 | } | |
4427 | ||
4428 | /* EXPORTED TO YACC */ | |
4429 | ||
4430 | void | |
b6bf44ba AM |
4431 | lang_add_wild (filespec, section_list, keep_sections) |
4432 | struct wildcard_spec *filespec; | |
4433 | struct wildcard_list *section_list; | |
b34976b6 | 4434 | bfd_boolean keep_sections; |
252b5132 | 4435 | { |
b6bf44ba AM |
4436 | struct wildcard_list *curr, *next; |
4437 | lang_wild_statement_type *new; | |
4438 | ||
4439 | /* Reverse the list as the parser puts it back to front. */ | |
4440 | for (curr = section_list, section_list = NULL; | |
4441 | curr != NULL; | |
4442 | section_list = curr, curr = next) | |
4443 | { | |
4444 | if (curr->spec.name != NULL && strcmp (curr->spec.name, "COMMON") == 0) | |
b34976b6 | 4445 | placed_commons = TRUE; |
252b5132 | 4446 | |
b6bf44ba AM |
4447 | next = curr->next; |
4448 | curr->next = section_list; | |
4449 | } | |
4450 | ||
4451 | if (filespec != NULL && filespec->name != NULL) | |
252b5132 | 4452 | { |
b6bf44ba AM |
4453 | if (strcmp (filespec->name, "*") == 0) |
4454 | filespec->name = NULL; | |
4455 | else if (! wildcardp (filespec->name)) | |
b34976b6 | 4456 | lang_has_input_file = TRUE; |
252b5132 | 4457 | } |
b6bf44ba AM |
4458 | |
4459 | new = new_stat (lang_wild_statement, stat_ptr); | |
4460 | new->filename = NULL; | |
b34976b6 | 4461 | new->filenames_sorted = FALSE; |
b6bf44ba | 4462 | if (filespec != NULL) |
252b5132 | 4463 | { |
b6bf44ba AM |
4464 | new->filename = filespec->name; |
4465 | new->filenames_sorted = filespec->sorted; | |
252b5132 | 4466 | } |
b6bf44ba | 4467 | new->section_list = section_list; |
252b5132 | 4468 | new->keep_sections = keep_sections; |
252b5132 RH |
4469 | lang_list_init (&new->children); |
4470 | } | |
4471 | ||
4472 | void | |
4473 | lang_section_start (name, address) | |
5f992e62 | 4474 | const char *name; |
08da4cac | 4475 | etree_type *address; |
252b5132 | 4476 | { |
d1778b88 | 4477 | lang_address_statement_type *ad; |
252b5132 | 4478 | |
d1778b88 | 4479 | ad = new_stat (lang_address_statement, stat_ptr); |
252b5132 RH |
4480 | ad->section_name = name; |
4481 | ad->address = address; | |
4482 | } | |
4483 | ||
4484 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called | |
4485 | because of a -e argument on the command line, or zero if this is | |
4486 | called by ENTRY in a linker script. Command line arguments take | |
4487 | precedence. */ | |
4488 | ||
4489 | void | |
4490 | lang_add_entry (name, cmdline) | |
5f992e62 | 4491 | const char *name; |
b34976b6 | 4492 | bfd_boolean cmdline; |
252b5132 | 4493 | { |
e3e942e9 | 4494 | if (entry_symbol.name == NULL |
252b5132 RH |
4495 | || cmdline |
4496 | || ! entry_from_cmdline) | |
4497 | { | |
e3e942e9 | 4498 | entry_symbol.name = name; |
252b5132 RH |
4499 | entry_from_cmdline = cmdline; |
4500 | } | |
4501 | } | |
4502 | ||
4503 | void | |
4504 | lang_add_target (name) | |
5f992e62 | 4505 | const char *name; |
252b5132 RH |
4506 | { |
4507 | lang_target_statement_type *new = new_stat (lang_target_statement, | |
4508 | stat_ptr); | |
4509 | ||
4510 | new->target = name; | |
4511 | ||
4512 | } | |
4513 | ||
4514 | void | |
4515 | lang_add_map (name) | |
5f992e62 | 4516 | const char *name; |
252b5132 RH |
4517 | { |
4518 | while (*name) | |
4519 | { | |
4520 | switch (*name) | |
4521 | { | |
08da4cac | 4522 | case 'F': |
b34976b6 | 4523 | map_option_f = TRUE; |
252b5132 RH |
4524 | break; |
4525 | } | |
4526 | name++; | |
4527 | } | |
4528 | } | |
4529 | ||
4530 | void | |
2c382fb6 AM |
4531 | lang_add_fill (fill) |
4532 | fill_type *fill; | |
252b5132 RH |
4533 | { |
4534 | lang_fill_statement_type *new = new_stat (lang_fill_statement, | |
4535 | stat_ptr); | |
4536 | ||
2c382fb6 | 4537 | new->fill = fill; |
252b5132 RH |
4538 | } |
4539 | ||
4540 | void | |
4541 | lang_add_data (type, exp) | |
4542 | int type; | |
4543 | union etree_union *exp; | |
4544 | { | |
4545 | ||
4546 | lang_data_statement_type *new = new_stat (lang_data_statement, | |
4547 | stat_ptr); | |
4548 | ||
4549 | new->exp = exp; | |
4550 | new->type = type; | |
4551 | ||
4552 | } | |
4553 | ||
4554 | /* Create a new reloc statement. RELOC is the BFD relocation type to | |
4555 | generate. HOWTO is the corresponding howto structure (we could | |
4556 | look this up, but the caller has already done so). SECTION is the | |
4557 | section to generate a reloc against, or NAME is the name of the | |
4558 | symbol to generate a reloc against. Exactly one of SECTION and | |
4559 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
4560 | ||
4561 | void | |
4562 | lang_add_reloc (reloc, howto, section, name, addend) | |
4563 | bfd_reloc_code_real_type reloc; | |
4564 | reloc_howto_type *howto; | |
4565 | asection *section; | |
4566 | const char *name; | |
4567 | union etree_union *addend; | |
4568 | { | |
4569 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
5f992e62 | 4570 | |
252b5132 RH |
4571 | p->reloc = reloc; |
4572 | p->howto = howto; | |
4573 | p->section = section; | |
4574 | p->name = name; | |
4575 | p->addend_exp = addend; | |
4576 | ||
4577 | p->addend_value = 0; | |
4578 | p->output_section = NULL; | |
4579 | p->output_vma = 0; | |
4580 | } | |
4581 | ||
4582 | lang_assignment_statement_type * | |
4583 | lang_add_assignment (exp) | |
08da4cac | 4584 | etree_type *exp; |
252b5132 RH |
4585 | { |
4586 | lang_assignment_statement_type *new = new_stat (lang_assignment_statement, | |
4587 | stat_ptr); | |
4588 | ||
4589 | new->exp = exp; | |
4590 | return new; | |
4591 | } | |
4592 | ||
4593 | void | |
4594 | lang_add_attribute (attribute) | |
4595 | enum statement_enum attribute; | |
4596 | { | |
4597 | new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr); | |
4598 | } | |
4599 | ||
4600 | void | |
4601 | lang_startup (name) | |
5f992e62 | 4602 | const char *name; |
252b5132 RH |
4603 | { |
4604 | if (startup_file != (char *) NULL) | |
4605 | { | |
4606 | einfo (_("%P%Fmultiple STARTUP files\n")); | |
4607 | } | |
4608 | first_file->filename = name; | |
4609 | first_file->local_sym_name = name; | |
b34976b6 | 4610 | first_file->real = TRUE; |
252b5132 RH |
4611 | |
4612 | startup_file = name; | |
4613 | } | |
4614 | ||
4615 | void | |
4616 | lang_float (maybe) | |
b34976b6 | 4617 | bfd_boolean maybe; |
252b5132 RH |
4618 | { |
4619 | lang_float_flag = maybe; | |
4620 | } | |
4621 | ||
ee3cc2e2 RS |
4622 | |
4623 | /* Work out the load- and run-time regions from a script statement, and | |
4624 | store them in *LMA_REGION and *REGION respectively. | |
4625 | ||
4626 | MEMSPEC is the name of the run-time region, or "*default*" if the | |
4627 | statement didn't specify one. LMA_MEMSPEC is the name of the | |
4628 | load-time region, or null if the statement didn't specify one. | |
b34976b6 | 4629 | HAVE_LMA_P is TRUE if the statement had an explicit load address. |
ee3cc2e2 RS |
4630 | |
4631 | It is an error to specify both a load region and a load address. */ | |
4632 | ||
4633 | static void | |
4634 | lang_get_regions (region, lma_region, memspec, lma_memspec, have_lma_p) | |
4635 | struct memory_region_struct **region, **lma_region; | |
4636 | const char *memspec, *lma_memspec; | |
4637 | int have_lma_p; | |
4638 | { | |
4639 | *lma_region = lang_memory_region_lookup (lma_memspec); | |
4640 | ||
4641 | /* If no runtime region has been given, but the load region has | |
4642 | been, use the load region. */ | |
4643 | if (lma_memspec != 0 && strcmp (memspec, "*default*") == 0) | |
4644 | *region = *lma_region; | |
4645 | else | |
4646 | *region = lang_memory_region_lookup (memspec); | |
4647 | ||
4648 | if (have_lma_p && lma_memspec != 0) | |
4649 | einfo (_("%X%P:%S: section has both a load address and a load region\n")); | |
4650 | } | |
4651 | ||
252b5132 | 4652 | void |
562d3460 | 4653 | lang_leave_output_section_statement (fill, memspec, phdrs, lma_memspec) |
2c382fb6 | 4654 | fill_type *fill; |
252b5132 RH |
4655 | const char *memspec; |
4656 | struct lang_output_section_phdr_list *phdrs; | |
562d3460 | 4657 | const char *lma_memspec; |
252b5132 | 4658 | { |
ee3cc2e2 RS |
4659 | lang_get_regions (¤t_section->region, |
4660 | ¤t_section->lma_region, | |
4661 | memspec, lma_memspec, | |
4662 | current_section->load_base != 0); | |
252b5132 | 4663 | current_section->fill = fill; |
252b5132 RH |
4664 | current_section->phdrs = phdrs; |
4665 | stat_ptr = &statement_list; | |
4666 | } | |
4667 | ||
08da4cac KH |
4668 | /* Create an absolute symbol with the given name with the value of the |
4669 | address of first byte of the section named. | |
4670 | ||
4671 | If the symbol already exists, then do nothing. */ | |
252b5132 | 4672 | |
252b5132 RH |
4673 | void |
4674 | lang_abs_symbol_at_beginning_of (secname, name) | |
4675 | const char *secname; | |
4676 | const char *name; | |
4677 | { | |
4678 | struct bfd_link_hash_entry *h; | |
4679 | ||
b34976b6 | 4680 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, TRUE, TRUE); |
252b5132 RH |
4681 | if (h == (struct bfd_link_hash_entry *) NULL) |
4682 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
4683 | ||
4684 | if (h->type == bfd_link_hash_new | |
4685 | || h->type == bfd_link_hash_undefined) | |
4686 | { | |
4687 | asection *sec; | |
4688 | ||
4689 | h->type = bfd_link_hash_defined; | |
4690 | ||
4691 | sec = bfd_get_section_by_name (output_bfd, secname); | |
4692 | if (sec == (asection *) NULL) | |
4693 | h->u.def.value = 0; | |
4694 | else | |
4695 | h->u.def.value = bfd_get_section_vma (output_bfd, sec); | |
4696 | ||
4697 | h->u.def.section = bfd_abs_section_ptr; | |
4698 | } | |
4699 | } | |
4700 | ||
08da4cac KH |
4701 | /* Create an absolute symbol with the given name with the value of the |
4702 | address of the first byte after the end of the section named. | |
4703 | ||
4704 | If the symbol already exists, then do nothing. */ | |
252b5132 | 4705 | |
252b5132 RH |
4706 | void |
4707 | lang_abs_symbol_at_end_of (secname, name) | |
4708 | const char *secname; | |
4709 | const char *name; | |
4710 | { | |
4711 | struct bfd_link_hash_entry *h; | |
4712 | ||
b34976b6 | 4713 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, TRUE, TRUE); |
252b5132 RH |
4714 | if (h == (struct bfd_link_hash_entry *) NULL) |
4715 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
4716 | ||
4717 | if (h->type == bfd_link_hash_new | |
4718 | || h->type == bfd_link_hash_undefined) | |
4719 | { | |
4720 | asection *sec; | |
4721 | ||
4722 | h->type = bfd_link_hash_defined; | |
4723 | ||
4724 | sec = bfd_get_section_by_name (output_bfd, secname); | |
4725 | if (sec == (asection *) NULL) | |
4726 | h->u.def.value = 0; | |
4727 | else | |
4728 | h->u.def.value = (bfd_get_section_vma (output_bfd, sec) | |
4cbfc3ac TW |
4729 | + bfd_section_size (output_bfd, sec) / |
4730 | bfd_octets_per_byte (output_bfd)); | |
252b5132 RH |
4731 | |
4732 | h->u.def.section = bfd_abs_section_ptr; | |
4733 | } | |
4734 | } | |
4735 | ||
4736 | void | |
4737 | lang_statement_append (list, element, field) | |
08da4cac KH |
4738 | lang_statement_list_type *list; |
4739 | lang_statement_union_type *element; | |
4740 | lang_statement_union_type **field; | |
252b5132 RH |
4741 | { |
4742 | *(list->tail) = element; | |
4743 | list->tail = field; | |
4744 | } | |
4745 | ||
4746 | /* Set the output format type. -oformat overrides scripts. */ | |
4747 | ||
4748 | void | |
4749 | lang_add_output_format (format, big, little, from_script) | |
4750 | const char *format; | |
4751 | const char *big; | |
4752 | const char *little; | |
4753 | int from_script; | |
4754 | { | |
4755 | if (output_target == NULL || !from_script) | |
4756 | { | |
4757 | if (command_line.endian == ENDIAN_BIG | |
4758 | && big != NULL) | |
4759 | format = big; | |
4760 | else if (command_line.endian == ENDIAN_LITTLE | |
4761 | && little != NULL) | |
4762 | format = little; | |
4763 | ||
4764 | output_target = format; | |
4765 | } | |
4766 | } | |
4767 | ||
4768 | /* Enter a group. This creates a new lang_group_statement, and sets | |
4769 | stat_ptr to build new statements within the group. */ | |
4770 | ||
4771 | void | |
4772 | lang_enter_group () | |
4773 | { | |
4774 | lang_group_statement_type *g; | |
4775 | ||
4776 | g = new_stat (lang_group_statement, stat_ptr); | |
4777 | lang_list_init (&g->children); | |
4778 | stat_ptr = &g->children; | |
4779 | } | |
4780 | ||
4781 | /* Leave a group. This just resets stat_ptr to start writing to the | |
4782 | regular list of statements again. Note that this will not work if | |
4783 | groups can occur inside anything else which can adjust stat_ptr, | |
4784 | but currently they can't. */ | |
4785 | ||
4786 | void | |
4787 | lang_leave_group () | |
4788 | { | |
4789 | stat_ptr = &statement_list; | |
4790 | } | |
4791 | ||
4792 | /* Add a new program header. This is called for each entry in a PHDRS | |
4793 | command in a linker script. */ | |
4794 | ||
4795 | void | |
4796 | lang_new_phdr (name, type, filehdr, phdrs, at, flags) | |
4797 | const char *name; | |
4798 | etree_type *type; | |
b34976b6 AM |
4799 | bfd_boolean filehdr; |
4800 | bfd_boolean phdrs; | |
252b5132 RH |
4801 | etree_type *at; |
4802 | etree_type *flags; | |
4803 | { | |
4804 | struct lang_phdr *n, **pp; | |
4805 | ||
4806 | n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr)); | |
4807 | n->next = NULL; | |
4808 | n->name = name; | |
4809 | n->type = exp_get_value_int (type, 0, "program header type", | |
4810 | lang_final_phase_enum); | |
4811 | n->filehdr = filehdr; | |
4812 | n->phdrs = phdrs; | |
4813 | n->at = at; | |
4814 | n->flags = flags; | |
4815 | ||
4816 | for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next) | |
4817 | ; | |
4818 | *pp = n; | |
4819 | } | |
4820 | ||
4821 | /* Record the program header information in the output BFD. FIXME: We | |
4822 | should not be calling an ELF specific function here. */ | |
4823 | ||
4824 | static void | |
4825 | lang_record_phdrs () | |
4826 | { | |
4827 | unsigned int alc; | |
4828 | asection **secs; | |
4829 | struct lang_output_section_phdr_list *last; | |
4830 | struct lang_phdr *l; | |
4831 | lang_statement_union_type *u; | |
4832 | ||
4833 | alc = 10; | |
4834 | secs = (asection **) xmalloc (alc * sizeof (asection *)); | |
4835 | last = NULL; | |
4836 | for (l = lang_phdr_list; l != NULL; l = l->next) | |
4837 | { | |
4838 | unsigned int c; | |
4839 | flagword flags; | |
4840 | bfd_vma at; | |
4841 | ||
4842 | c = 0; | |
4843 | for (u = lang_output_section_statement.head; | |
4844 | u != NULL; | |
4845 | u = u->output_section_statement.next) | |
4846 | { | |
4847 | lang_output_section_statement_type *os; | |
4848 | struct lang_output_section_phdr_list *pl; | |
4849 | ||
4850 | os = &u->output_section_statement; | |
4851 | ||
4852 | pl = os->phdrs; | |
4853 | if (pl != NULL) | |
4854 | last = pl; | |
4855 | else | |
4856 | { | |
4857 | if (os->sectype == noload_section | |
4858 | || os->bfd_section == NULL | |
4859 | || (os->bfd_section->flags & SEC_ALLOC) == 0) | |
4860 | continue; | |
4861 | pl = last; | |
4862 | } | |
4863 | ||
4864 | if (os->bfd_section == NULL) | |
4865 | continue; | |
4866 | ||
4867 | for (; pl != NULL; pl = pl->next) | |
4868 | { | |
4869 | if (strcmp (pl->name, l->name) == 0) | |
4870 | { | |
4871 | if (c >= alc) | |
4872 | { | |
4873 | alc *= 2; | |
4874 | secs = ((asection **) | |
4875 | xrealloc (secs, alc * sizeof (asection *))); | |
4876 | } | |
4877 | secs[c] = os->bfd_section; | |
4878 | ++c; | |
b34976b6 | 4879 | pl->used = TRUE; |
252b5132 RH |
4880 | } |
4881 | } | |
4882 | } | |
4883 | ||
4884 | if (l->flags == NULL) | |
4885 | flags = 0; | |
4886 | else | |
4887 | flags = exp_get_vma (l->flags, 0, "phdr flags", | |
4888 | lang_final_phase_enum); | |
4889 | ||
4890 | if (l->at == NULL) | |
4891 | at = 0; | |
4892 | else | |
4893 | at = exp_get_vma (l->at, 0, "phdr load address", | |
4894 | lang_final_phase_enum); | |
4895 | ||
4896 | if (! bfd_record_phdr (output_bfd, l->type, | |
d1778b88 | 4897 | l->flags != NULL, flags, l->at != NULL, |
252b5132 RH |
4898 | at, l->filehdr, l->phdrs, c, secs)) |
4899 | einfo (_("%F%P: bfd_record_phdr failed: %E\n")); | |
4900 | } | |
4901 | ||
4902 | free (secs); | |
4903 | ||
4904 | /* Make sure all the phdr assignments succeeded. */ | |
4905 | for (u = lang_output_section_statement.head; | |
4906 | u != NULL; | |
4907 | u = u->output_section_statement.next) | |
4908 | { | |
4909 | struct lang_output_section_phdr_list *pl; | |
4910 | ||
4911 | if (u->output_section_statement.bfd_section == NULL) | |
4912 | continue; | |
4913 | ||
4914 | for (pl = u->output_section_statement.phdrs; | |
4915 | pl != NULL; | |
4916 | pl = pl->next) | |
4917 | if (! pl->used && strcmp (pl->name, "NONE") != 0) | |
4918 | einfo (_("%X%P: section `%s' assigned to non-existent phdr `%s'\n"), | |
4919 | u->output_section_statement.name, pl->name); | |
4920 | } | |
4921 | } | |
4922 | ||
4923 | /* Record a list of sections which may not be cross referenced. */ | |
4924 | ||
4925 | void | |
4926 | lang_add_nocrossref (l) | |
4927 | struct lang_nocrossref *l; | |
4928 | { | |
4929 | struct lang_nocrossrefs *n; | |
4930 | ||
4931 | n = (struct lang_nocrossrefs *) xmalloc (sizeof *n); | |
4932 | n->next = nocrossref_list; | |
4933 | n->list = l; | |
4934 | nocrossref_list = n; | |
4935 | ||
4936 | /* Set notice_all so that we get informed about all symbols. */ | |
b34976b6 | 4937 | link_info.notice_all = TRUE; |
252b5132 RH |
4938 | } |
4939 | \f | |
4940 | /* Overlay handling. We handle overlays with some static variables. */ | |
4941 | ||
4942 | /* The overlay virtual address. */ | |
4943 | static etree_type *overlay_vma; | |
4944 | ||
252b5132 RH |
4945 | /* An expression for the maximum section size seen so far. */ |
4946 | static etree_type *overlay_max; | |
4947 | ||
4948 | /* A list of all the sections in this overlay. */ | |
4949 | ||
89cdebba | 4950 | struct overlay_list { |
252b5132 RH |
4951 | struct overlay_list *next; |
4952 | lang_output_section_statement_type *os; | |
4953 | }; | |
4954 | ||
4955 | static struct overlay_list *overlay_list; | |
4956 | ||
4957 | /* Start handling an overlay. */ | |
4958 | ||
4959 | void | |
9f88b410 | 4960 | lang_enter_overlay (vma_expr) |
252b5132 | 4961 | etree_type *vma_expr; |
252b5132 RH |
4962 | { |
4963 | /* The grammar should prevent nested overlays from occurring. */ | |
9f88b410 | 4964 | ASSERT (overlay_vma == NULL && overlay_max == NULL); |
252b5132 RH |
4965 | |
4966 | overlay_vma = vma_expr; | |
252b5132 RH |
4967 | } |
4968 | ||
4969 | /* Start a section in an overlay. We handle this by calling | |
9f88b410 RS |
4970 | lang_enter_output_section_statement with the correct VMA. |
4971 | lang_leave_overlay sets up the LMA and memory regions. */ | |
252b5132 RH |
4972 | |
4973 | void | |
4974 | lang_enter_overlay_section (name) | |
4975 | const char *name; | |
4976 | { | |
4977 | struct overlay_list *n; | |
4978 | etree_type *size; | |
4979 | ||
4980 | lang_enter_output_section_statement (name, overlay_vma, normal_section, | |
9f88b410 | 4981 | 0, 0, 0, 0); |
252b5132 | 4982 | |
9f88b410 | 4983 | /* If this is the first section, then base the VMA of future |
252b5132 RH |
4984 | sections on this one. This will work correctly even if `.' is |
4985 | used in the addresses. */ | |
4986 | if (overlay_list == NULL) | |
9f88b410 | 4987 | overlay_vma = exp_nameop (ADDR, name); |
252b5132 RH |
4988 | |
4989 | /* Remember the section. */ | |
4990 | n = (struct overlay_list *) xmalloc (sizeof *n); | |
4991 | n->os = current_section; | |
4992 | n->next = overlay_list; | |
4993 | overlay_list = n; | |
4994 | ||
4995 | size = exp_nameop (SIZEOF, name); | |
4996 | ||
252b5132 RH |
4997 | /* Arrange to work out the maximum section end address. */ |
4998 | if (overlay_max == NULL) | |
4999 | overlay_max = size; | |
5000 | else | |
5001 | overlay_max = exp_binop (MAX_K, overlay_max, size); | |
5002 | } | |
5003 | ||
5004 | /* Finish a section in an overlay. There isn't any special to do | |
5005 | here. */ | |
5006 | ||
5007 | void | |
5008 | lang_leave_overlay_section (fill, phdrs) | |
2c382fb6 | 5009 | fill_type *fill; |
252b5132 RH |
5010 | struct lang_output_section_phdr_list *phdrs; |
5011 | { | |
5012 | const char *name; | |
5013 | char *clean, *s2; | |
5014 | const char *s1; | |
5015 | char *buf; | |
5016 | ||
5017 | name = current_section->name; | |
5018 | ||
9f88b410 RS |
5019 | /* For now, assume that "*default*" is the run-time memory region and |
5020 | that no load-time region has been specified. It doesn't really | |
5021 | matter what we say here, since lang_leave_overlay will override it. */ | |
5022 | lang_leave_output_section_statement (fill, "*default*", phdrs, 0); | |
252b5132 RH |
5023 | |
5024 | /* Define the magic symbols. */ | |
5025 | ||
5026 | clean = xmalloc (strlen (name) + 1); | |
5027 | s2 = clean; | |
5028 | for (s1 = name; *s1 != '\0'; s1++) | |
3882b010 | 5029 | if (ISALNUM (*s1) || *s1 == '_') |
252b5132 RH |
5030 | *s2++ = *s1; |
5031 | *s2 = '\0'; | |
5032 | ||
5033 | buf = xmalloc (strlen (clean) + sizeof "__load_start_"); | |
5034 | sprintf (buf, "__load_start_%s", clean); | |
5035 | lang_add_assignment (exp_assop ('=', buf, | |
5036 | exp_nameop (LOADADDR, name))); | |
5037 | ||
5038 | buf = xmalloc (strlen (clean) + sizeof "__load_stop_"); | |
5039 | sprintf (buf, "__load_stop_%s", clean); | |
5040 | lang_add_assignment (exp_assop ('=', buf, | |
5041 | exp_binop ('+', | |
5042 | exp_nameop (LOADADDR, name), | |
5043 | exp_nameop (SIZEOF, name)))); | |
5044 | ||
5045 | free (clean); | |
5046 | } | |
5047 | ||
5048 | /* Finish an overlay. If there are any overlay wide settings, this | |
5049 | looks through all the sections in the overlay and sets them. */ | |
5050 | ||
5051 | void | |
9f88b410 RS |
5052 | lang_leave_overlay (lma_expr, nocrossrefs, fill, memspec, phdrs, lma_memspec) |
5053 | etree_type *lma_expr; | |
5054 | int nocrossrefs; | |
2c382fb6 | 5055 | fill_type *fill; |
252b5132 RH |
5056 | const char *memspec; |
5057 | struct lang_output_section_phdr_list *phdrs; | |
562d3460 | 5058 | const char *lma_memspec; |
252b5132 RH |
5059 | { |
5060 | lang_memory_region_type *region; | |
562d3460 | 5061 | lang_memory_region_type *lma_region; |
252b5132 RH |
5062 | struct overlay_list *l; |
5063 | struct lang_nocrossref *nocrossref; | |
5064 | ||
ee3cc2e2 RS |
5065 | lang_get_regions (®ion, &lma_region, |
5066 | memspec, lma_memspec, | |
5067 | lma_expr != 0); | |
562d3460 | 5068 | |
252b5132 RH |
5069 | nocrossref = NULL; |
5070 | ||
9f88b410 RS |
5071 | /* After setting the size of the last section, set '.' to end of the |
5072 | overlay region. */ | |
5073 | if (overlay_list != NULL) | |
5074 | overlay_list->os->update_dot_tree | |
5075 | = exp_assop ('=', ".", exp_binop ('+', overlay_vma, overlay_max)); | |
5076 | ||
252b5132 RH |
5077 | l = overlay_list; |
5078 | while (l != NULL) | |
5079 | { | |
5080 | struct overlay_list *next; | |
5081 | ||
2c382fb6 | 5082 | if (fill != (fill_type *) 0 && l->os->fill == (fill_type *) 0) |
252b5132 | 5083 | l->os->fill = fill; |
1545243b | 5084 | |
9f88b410 RS |
5085 | l->os->region = region; |
5086 | l->os->lma_region = lma_region; | |
5087 | ||
5088 | /* The first section has the load address specified in the | |
5089 | OVERLAY statement. The rest are worked out from that. | |
5090 | The base address is not needed (and should be null) if | |
5091 | an LMA region was specified. */ | |
5092 | if (l->next == 0) | |
5093 | l->os->load_base = lma_expr; | |
5094 | else if (lma_region == 0) | |
5095 | l->os->load_base = exp_binop ('+', | |
5096 | exp_nameop (LOADADDR, l->next->os->name), | |
5097 | exp_nameop (SIZEOF, l->next->os->name)); | |
1545243b | 5098 | |
252b5132 RH |
5099 | if (phdrs != NULL && l->os->phdrs == NULL) |
5100 | l->os->phdrs = phdrs; | |
5101 | ||
9f88b410 | 5102 | if (nocrossrefs) |
252b5132 RH |
5103 | { |
5104 | struct lang_nocrossref *nc; | |
5105 | ||
5106 | nc = (struct lang_nocrossref *) xmalloc (sizeof *nc); | |
5107 | nc->name = l->os->name; | |
5108 | nc->next = nocrossref; | |
5109 | nocrossref = nc; | |
5110 | } | |
5111 | ||
5112 | next = l->next; | |
5113 | free (l); | |
5114 | l = next; | |
5115 | } | |
5116 | ||
5117 | if (nocrossref != NULL) | |
5118 | lang_add_nocrossref (nocrossref); | |
5119 | ||
252b5132 | 5120 | overlay_vma = NULL; |
252b5132 RH |
5121 | overlay_list = NULL; |
5122 | overlay_max = NULL; | |
5123 | } | |
5124 | \f | |
5125 | /* Version handling. This is only useful for ELF. */ | |
5126 | ||
5127 | /* This global variable holds the version tree that we build. */ | |
5128 | ||
5129 | struct bfd_elf_version_tree *lang_elf_version_info; | |
5130 | ||
5131 | static int | |
5132 | lang_vers_match_lang_c (expr, sym) | |
5133 | struct bfd_elf_version_expr *expr; | |
5134 | const char *sym; | |
5135 | { | |
5136 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') | |
5137 | return 1; | |
5138 | return fnmatch (expr->pattern, sym, 0) == 0; | |
5139 | } | |
5140 | ||
5141 | static int | |
5142 | lang_vers_match_lang_cplusplus (expr, sym) | |
5143 | struct bfd_elf_version_expr *expr; | |
5144 | const char *sym; | |
5145 | { | |
5146 | char *alt_sym; | |
5147 | int result; | |
5148 | ||
5149 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') | |
5150 | return 1; | |
5151 | ||
08da4cac | 5152 | alt_sym = cplus_demangle (sym, /* DMGL_NO_TPARAMS */ 0); |
252b5132 RH |
5153 | if (!alt_sym) |
5154 | { | |
5155 | /* cplus_demangle (also) returns NULL when it is not a C++ symbol. | |
b34976b6 | 5156 | Should we early out FALSE in this case? */ |
252b5132 RH |
5157 | result = fnmatch (expr->pattern, sym, 0) == 0; |
5158 | } | |
5159 | else | |
5160 | { | |
5161 | result = fnmatch (expr->pattern, alt_sym, 0) == 0; | |
5162 | free (alt_sym); | |
5163 | } | |
5164 | ||
5165 | return result; | |
5166 | } | |
5167 | ||
5168 | static int | |
5169 | lang_vers_match_lang_java (expr, sym) | |
5170 | struct bfd_elf_version_expr *expr; | |
5171 | const char *sym; | |
5172 | { | |
5173 | char *alt_sym; | |
5174 | int result; | |
5175 | ||
5176 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') | |
5177 | return 1; | |
5178 | ||
08da4cac | 5179 | alt_sym = cplus_demangle (sym, DMGL_JAVA); |
252b5132 RH |
5180 | if (!alt_sym) |
5181 | { | |
5182 | /* cplus_demangle (also) returns NULL when it is not a Java symbol. | |
b34976b6 | 5183 | Should we early out FALSE in this case? */ |
252b5132 RH |
5184 | result = fnmatch (expr->pattern, sym, 0) == 0; |
5185 | } | |
5186 | else | |
5187 | { | |
5188 | result = fnmatch (expr->pattern, alt_sym, 0) == 0; | |
5189 | free (alt_sym); | |
5190 | } | |
5191 | ||
5192 | return result; | |
5193 | } | |
5194 | ||
5195 | /* This is called for each variable name or match expression. */ | |
5196 | ||
5197 | struct bfd_elf_version_expr * | |
313e35ee | 5198 | lang_new_vers_pattern (orig, new, lang) |
252b5132 RH |
5199 | struct bfd_elf_version_expr *orig; |
5200 | const char *new; | |
5201 | const char *lang; | |
5202 | { | |
5203 | struct bfd_elf_version_expr *ret; | |
5204 | ||
5205 | ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret); | |
5206 | ret->next = orig; | |
5207 | ret->pattern = new; | |
31941635 L |
5208 | ret->symver = 0; |
5209 | ret->script = 0; | |
252b5132 RH |
5210 | |
5211 | if (lang == NULL || strcasecmp (lang, "C") == 0) | |
5212 | ret->match = lang_vers_match_lang_c; | |
5213 | else if (strcasecmp (lang, "C++") == 0) | |
5214 | ret->match = lang_vers_match_lang_cplusplus; | |
5215 | else if (strcasecmp (lang, "Java") == 0) | |
5216 | ret->match = lang_vers_match_lang_java; | |
5217 | else | |
5218 | { | |
5219 | einfo (_("%X%P: unknown language `%s' in version information\n"), | |
5220 | lang); | |
5221 | ret->match = lang_vers_match_lang_c; | |
5222 | } | |
5223 | ||
fac1652d | 5224 | return ldemul_new_vers_pattern (ret); |
252b5132 RH |
5225 | } |
5226 | ||
5227 | /* This is called for each set of variable names and match | |
5228 | expressions. */ | |
5229 | ||
5230 | struct bfd_elf_version_tree * | |
5231 | lang_new_vers_node (globals, locals) | |
5232 | struct bfd_elf_version_expr *globals; | |
5233 | struct bfd_elf_version_expr *locals; | |
5234 | { | |
5235 | struct bfd_elf_version_tree *ret; | |
5236 | ||
5237 | ret = (struct bfd_elf_version_tree *) xmalloc (sizeof *ret); | |
5238 | ret->next = NULL; | |
5239 | ret->name = NULL; | |
5240 | ret->vernum = 0; | |
5241 | ret->globals = globals; | |
5242 | ret->locals = locals; | |
5243 | ret->deps = NULL; | |
5244 | ret->name_indx = (unsigned int) -1; | |
5245 | ret->used = 0; | |
5246 | return ret; | |
5247 | } | |
5248 | ||
5249 | /* This static variable keeps track of version indices. */ | |
5250 | ||
5251 | static int version_index; | |
5252 | ||
5253 | /* This is called when we know the name and dependencies of the | |
5254 | version. */ | |
5255 | ||
5256 | void | |
5257 | lang_register_vers_node (name, version, deps) | |
5258 | const char *name; | |
5259 | struct bfd_elf_version_tree *version; | |
5260 | struct bfd_elf_version_deps *deps; | |
5261 | { | |
5262 | struct bfd_elf_version_tree *t, **pp; | |
5263 | struct bfd_elf_version_expr *e1; | |
5264 | ||
6b9b879a JJ |
5265 | if (name == NULL) |
5266 | name = ""; | |
5267 | ||
5268 | if ((name[0] == '\0' && lang_elf_version_info != NULL) | |
5269 | || (lang_elf_version_info && lang_elf_version_info->name[0] == '\0')) | |
5270 | { | |
5271 | einfo (_("%X%P: anonymous version tag cannot be combined with other version tags\n")); | |
5272 | return; | |
5273 | } | |
5274 | ||
252b5132 RH |
5275 | /* Make sure this node has a unique name. */ |
5276 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5277 | if (strcmp (t->name, name) == 0) | |
5278 | einfo (_("%X%P: duplicate version tag `%s'\n"), name); | |
5279 | ||
5280 | /* Check the global and local match names, and make sure there | |
5281 | aren't any duplicates. */ | |
5282 | ||
5283 | for (e1 = version->globals; e1 != NULL; e1 = e1->next) | |
5284 | { | |
5285 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5286 | { | |
5287 | struct bfd_elf_version_expr *e2; | |
5288 | ||
5289 | for (e2 = t->locals; e2 != NULL; e2 = e2->next) | |
5290 | if (strcmp (e1->pattern, e2->pattern) == 0) | |
5291 | einfo (_("%X%P: duplicate expression `%s' in version information\n"), | |
5292 | e1->pattern); | |
5293 | } | |
5294 | } | |
5295 | ||
5296 | for (e1 = version->locals; e1 != NULL; e1 = e1->next) | |
5297 | { | |
5298 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5299 | { | |
5300 | struct bfd_elf_version_expr *e2; | |
5301 | ||
5302 | for (e2 = t->globals; e2 != NULL; e2 = e2->next) | |
5303 | if (strcmp (e1->pattern, e2->pattern) == 0) | |
5304 | einfo (_("%X%P: duplicate expression `%s' in version information\n"), | |
5305 | e1->pattern); | |
5306 | } | |
5307 | } | |
5308 | ||
5309 | version->deps = deps; | |
5310 | version->name = name; | |
6b9b879a JJ |
5311 | if (name[0] != '\0') |
5312 | { | |
5313 | ++version_index; | |
5314 | version->vernum = version_index; | |
5315 | } | |
5316 | else | |
5317 | version->vernum = 0; | |
252b5132 RH |
5318 | |
5319 | for (pp = &lang_elf_version_info; *pp != NULL; pp = &(*pp)->next) | |
5320 | ; | |
5321 | *pp = version; | |
5322 | } | |
5323 | ||
5324 | /* This is called when we see a version dependency. */ | |
5325 | ||
5326 | struct bfd_elf_version_deps * | |
5327 | lang_add_vers_depend (list, name) | |
5328 | struct bfd_elf_version_deps *list; | |
5329 | const char *name; | |
5330 | { | |
5331 | struct bfd_elf_version_deps *ret; | |
5332 | struct bfd_elf_version_tree *t; | |
5333 | ||
5334 | ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret); | |
5335 | ret->next = list; | |
5336 | ||
5337 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5338 | { | |
5339 | if (strcmp (t->name, name) == 0) | |
5340 | { | |
5341 | ret->version_needed = t; | |
5342 | return ret; | |
5343 | } | |
5344 | } | |
5345 | ||
5346 | einfo (_("%X%P: unable to find version dependency `%s'\n"), name); | |
5347 | ||
5348 | return ret; | |
5349 | } | |
5350 | ||
5351 | static void | |
5352 | lang_do_version_exports_section () | |
5353 | { | |
5354 | struct bfd_elf_version_expr *greg = NULL, *lreg; | |
5355 | ||
5356 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
5357 | { | |
5358 | asection *sec = bfd_get_section_by_name (is->the_bfd, ".exports"); | |
5359 | char *contents, *p; | |
5360 | bfd_size_type len; | |
5361 | ||
5362 | if (sec == NULL) | |
b7a26f91 | 5363 | continue; |
252b5132 RH |
5364 | |
5365 | len = bfd_section_size (is->the_bfd, sec); | |
5366 | contents = xmalloc (len); | |
5367 | if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len)) | |
6f9efd97 | 5368 | einfo (_("%X%P: unable to read .exports section contents\n"), sec); |
252b5132 RH |
5369 | |
5370 | p = contents; | |
89cdebba | 5371 | while (p < contents + len) |
252b5132 | 5372 | { |
313e35ee | 5373 | greg = lang_new_vers_pattern (greg, p, NULL); |
252b5132 RH |
5374 | p = strchr (p, '\0') + 1; |
5375 | } | |
5376 | ||
5377 | /* Do not free the contents, as we used them creating the regex. */ | |
5378 | ||
5379 | /* Do not include this section in the link. */ | |
5380 | bfd_set_section_flags (is->the_bfd, sec, | |
5381 | bfd_get_section_flags (is->the_bfd, sec) | SEC_EXCLUDE); | |
5382 | } | |
5383 | ||
313e35ee | 5384 | lreg = lang_new_vers_pattern (NULL, "*", NULL); |
252b5132 RH |
5385 | lang_register_vers_node (command_line.version_exports_section, |
5386 | lang_new_vers_node (greg, lreg), NULL); | |
5387 | } | |
577a0623 AM |
5388 | |
5389 | void | |
5390 | lang_add_unique (name) | |
5391 | const char *name; | |
5392 | { | |
5393 | struct unique_sections *ent; | |
5394 | ||
5395 | for (ent = unique_section_list; ent; ent = ent->next) | |
5396 | if (strcmp (ent->name, name) == 0) | |
5397 | return; | |
5398 | ||
5399 | ent = (struct unique_sections *) xmalloc (sizeof *ent); | |
5400 | ent->name = xstrdup (name); | |
5401 | ent->next = unique_section_list; | |
5402 | unique_section_list = ent; | |
5403 | } |