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; |
e3f2db7f | 243 | static bfd_boolean ldlang_sysrooted_script = FALSE; |
252b5132 RH |
244 | |
245 | etree_type *base; /* Relocation base - or null */ | |
246 | ||
d1778b88 | 247 | #if defined (__STDC__) || defined (ALMOST_STDC) |
252b5132 RH |
248 | #define cat(a,b) a##b |
249 | #else | |
250 | #define cat(a,b) a/**/b | |
251 | #endif | |
252 | ||
d1778b88 AM |
253 | /* Don't beautify the line below with "innocent" whitespace, it breaks |
254 | the K&R C preprocessor! */ | |
255 | #define new_stat(x, y) \ | |
256 | (cat (x,_type)*) new_statement (cat (x,_enum), sizeof (cat (x,_type)), y) | |
252b5132 | 257 | |
d1778b88 AM |
258 | #define outside_section_address(q) \ |
259 | ((q)->output_offset + (q)->output_section->vma) | |
252b5132 | 260 | |
d1778b88 AM |
261 | #define outside_symbol_address(q) \ |
262 | ((q)->value + outside_section_address (q->section)) | |
252b5132 RH |
263 | |
264 | #define SECTION_NAME_MAP_LENGTH (16) | |
265 | ||
266 | PTR | |
267 | stat_alloc (size) | |
268 | size_t size; | |
269 | { | |
270 | return obstack_alloc (&stat_obstack, size); | |
271 | } | |
272 | ||
b34976b6 | 273 | bfd_boolean |
577a0623 AM |
274 | unique_section_p (secnam) |
275 | const char *secnam; | |
276 | { | |
277 | struct unique_sections *unam; | |
278 | ||
279 | for (unam = unique_section_list; unam; unam = unam->next) | |
280 | if (wildcardp (unam->name) | |
281 | ? fnmatch (unam->name, secnam, 0) == 0 | |
282 | : strcmp (unam->name, secnam) == 0) | |
283 | { | |
b34976b6 | 284 | return TRUE; |
577a0623 AM |
285 | } |
286 | ||
b34976b6 | 287 | return FALSE; |
577a0623 AM |
288 | } |
289 | ||
08da4cac | 290 | /* Generic traversal routines for finding matching sections. */ |
4dec4d4e RH |
291 | |
292 | static void | |
b6bf44ba | 293 | walk_wild_section (ptr, file, callback, data) |
4dec4d4e | 294 | lang_wild_statement_type *ptr; |
4dec4d4e RH |
295 | lang_input_statement_type *file; |
296 | callback_t callback; | |
5f992e62 | 297 | PTR data; |
4dec4d4e | 298 | { |
b6bf44ba AM |
299 | asection *s; |
300 | ||
301 | if (file->just_syms_flag) | |
302 | return; | |
303 | ||
304 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
4dec4d4e | 305 | { |
b6bf44ba AM |
306 | struct wildcard_list *sec; |
307 | ||
308 | sec = ptr->section_list; | |
2181f54f AM |
309 | if (sec == NULL) |
310 | (*callback) (ptr, sec, s, file, data); | |
311 | ||
312 | while (sec != NULL) | |
08da4cac | 313 | { |
b34976b6 | 314 | bfd_boolean skip = FALSE; |
2181f54f AM |
315 | struct name_list *list_tmp; |
316 | ||
317 | /* Don't process sections from files which were | |
318 | excluded. */ | |
319 | for (list_tmp = sec->spec.exclude_name_list; | |
320 | list_tmp; | |
321 | list_tmp = list_tmp->next) | |
322 | { | |
323 | if (wildcardp (list_tmp->name)) | |
324 | skip = fnmatch (list_tmp->name, file->filename, 0) == 0; | |
325 | else | |
326 | skip = strcmp (list_tmp->name, file->filename) == 0; | |
4dec4d4e | 327 | |
34efb449 AO |
328 | /* If this file is part of an archive, and the archive is |
329 | excluded, exclude this file. */ | |
330 | if (! skip && file->the_bfd != NULL | |
331 | && file->the_bfd->my_archive != NULL | |
332 | && file->the_bfd->my_archive->filename != NULL) | |
333 | { | |
334 | if (wildcardp (list_tmp->name)) | |
335 | skip = fnmatch (list_tmp->name, | |
336 | file->the_bfd->my_archive->filename, | |
337 | 0) == 0; | |
338 | else | |
339 | skip = strcmp (list_tmp->name, | |
340 | file->the_bfd->my_archive->filename) == 0; | |
341 | } | |
342 | ||
2181f54f AM |
343 | if (skip) |
344 | break; | |
345 | } | |
346 | ||
347 | if (!skip && sec->spec.name != NULL) | |
b6bf44ba | 348 | { |
2181f54f AM |
349 | const char *sname = bfd_get_section_name (file->the_bfd, s); |
350 | ||
351 | if (wildcardp (sec->spec.name)) | |
352 | skip = fnmatch (sec->spec.name, sname, 0) != 0; | |
353 | else | |
354 | skip = strcmp (sec->spec.name, sname) != 0; | |
b6bf44ba | 355 | } |
4dec4d4e | 356 | |
b6bf44ba AM |
357 | if (!skip) |
358 | (*callback) (ptr, sec, s, file, data); | |
4dec4d4e | 359 | |
2181f54f | 360 | sec = sec->next; |
4dec4d4e RH |
361 | } |
362 | } | |
363 | } | |
364 | ||
365 | /* Handle a wild statement for a single file F. */ | |
366 | ||
367 | static void | |
b6bf44ba | 368 | walk_wild_file (s, f, callback, data) |
4dec4d4e | 369 | lang_wild_statement_type *s; |
4dec4d4e RH |
370 | lang_input_statement_type *f; |
371 | callback_t callback; | |
5f992e62 | 372 | PTR data; |
4dec4d4e RH |
373 | { |
374 | if (f->the_bfd == NULL | |
375 | || ! bfd_check_format (f->the_bfd, bfd_archive)) | |
b6bf44ba | 376 | walk_wild_section (s, f, callback, data); |
4dec4d4e RH |
377 | else |
378 | { | |
379 | bfd *member; | |
380 | ||
381 | /* This is an archive file. We must map each member of the | |
382 | archive separately. */ | |
383 | member = bfd_openr_next_archived_file (f->the_bfd, (bfd *) NULL); | |
384 | while (member != NULL) | |
385 | { | |
386 | /* When lookup_name is called, it will call the add_symbols | |
387 | entry point for the archive. For each element of the | |
388 | archive which is included, BFD will call ldlang_add_file, | |
389 | which will set the usrdata field of the member to the | |
390 | lang_input_statement. */ | |
391 | if (member->usrdata != NULL) | |
392 | { | |
b6bf44ba | 393 | walk_wild_section (s, |
4dec4d4e RH |
394 | (lang_input_statement_type *) member->usrdata, |
395 | callback, data); | |
396 | } | |
397 | ||
398 | member = bfd_openr_next_archived_file (f->the_bfd, member); | |
399 | } | |
400 | } | |
401 | } | |
402 | ||
403 | static void | |
b6bf44ba | 404 | walk_wild (s, callback, data) |
4dec4d4e | 405 | lang_wild_statement_type *s; |
4dec4d4e | 406 | callback_t callback; |
5f992e62 | 407 | PTR data; |
4dec4d4e | 408 | { |
b6bf44ba AM |
409 | const char *file_spec = s->filename; |
410 | ||
411 | if (file_spec == NULL) | |
4dec4d4e RH |
412 | { |
413 | /* Perform the iteration over all files in the list. */ | |
e50d8076 | 414 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 415 | { |
b6bf44ba | 416 | walk_wild_file (s, f, callback, data); |
4dec4d4e RH |
417 | } |
418 | } | |
b6bf44ba | 419 | else if (wildcardp (file_spec)) |
4dec4d4e | 420 | { |
e50d8076 | 421 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
4dec4d4e | 422 | { |
b6bf44ba AM |
423 | if (fnmatch (file_spec, f->filename, FNM_FILE_NAME) == 0) |
424 | walk_wild_file (s, f, callback, data); | |
4dec4d4e RH |
425 | } |
426 | } | |
427 | else | |
428 | { | |
e50d8076 NC |
429 | lang_input_statement_type *f; |
430 | ||
4dec4d4e | 431 | /* Perform the iteration over a single file. */ |
b6bf44ba | 432 | f = lookup_name (file_spec); |
6770ec8c | 433 | if (f) |
b6bf44ba | 434 | walk_wild_file (s, f, callback, data); |
4dec4d4e | 435 | } |
5f992e62 AM |
436 | } |
437 | ||
08da4cac KH |
438 | /* lang_for_each_statement walks the parse tree and calls the provided |
439 | function for each node. */ | |
252b5132 RH |
440 | |
441 | static void | |
442 | lang_for_each_statement_worker (func, s) | |
443 | void (*func) PARAMS ((lang_statement_union_type *)); | |
444 | lang_statement_union_type *s; | |
445 | { | |
bba1a0c0 | 446 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
447 | { |
448 | func (s); | |
449 | ||
450 | switch (s->header.type) | |
451 | { | |
452 | case lang_constructors_statement_enum: | |
453 | lang_for_each_statement_worker (func, constructor_list.head); | |
454 | break; | |
455 | case lang_output_section_statement_enum: | |
456 | lang_for_each_statement_worker | |
457 | (func, | |
458 | s->output_section_statement.children.head); | |
459 | break; | |
460 | case lang_wild_statement_enum: | |
461 | lang_for_each_statement_worker | |
462 | (func, | |
463 | s->wild_statement.children.head); | |
464 | break; | |
465 | case lang_group_statement_enum: | |
466 | lang_for_each_statement_worker (func, | |
467 | s->group_statement.children.head); | |
468 | break; | |
469 | case lang_data_statement_enum: | |
470 | case lang_reloc_statement_enum: | |
471 | case lang_object_symbols_statement_enum: | |
472 | case lang_output_statement_enum: | |
473 | case lang_target_statement_enum: | |
474 | case lang_input_section_enum: | |
475 | case lang_input_statement_enum: | |
476 | case lang_assignment_statement_enum: | |
477 | case lang_padding_statement_enum: | |
478 | case lang_address_statement_enum: | |
479 | case lang_fill_statement_enum: | |
480 | break; | |
481 | default: | |
482 | FAIL (); | |
483 | break; | |
484 | } | |
485 | } | |
486 | } | |
487 | ||
488 | void | |
489 | lang_for_each_statement (func) | |
490 | void (*func) PARAMS ((lang_statement_union_type *)); | |
491 | { | |
08da4cac | 492 | lang_for_each_statement_worker (func, statement_list.head); |
252b5132 RH |
493 | } |
494 | ||
495 | /*----------------------------------------------------------------------*/ | |
08da4cac | 496 | |
252b5132 RH |
497 | void |
498 | lang_list_init (list) | |
499 | lang_statement_list_type *list; | |
500 | { | |
501 | list->head = (lang_statement_union_type *) NULL; | |
502 | list->tail = &list->head; | |
503 | } | |
504 | ||
08da4cac | 505 | /* Build a new statement node for the parse tree. */ |
252b5132 | 506 | |
08da4cac | 507 | static lang_statement_union_type * |
252b5132 RH |
508 | new_statement (type, size, list) |
509 | enum statement_enum type; | |
510 | size_t size; | |
08da4cac | 511 | lang_statement_list_type *list; |
252b5132 RH |
512 | { |
513 | lang_statement_union_type *new = (lang_statement_union_type *) | |
514 | stat_alloc (size); | |
515 | ||
516 | new->header.type = type; | |
517 | new->header.next = (lang_statement_union_type *) NULL; | |
518 | lang_statement_append (list, new, &new->header.next); | |
519 | return new; | |
520 | } | |
521 | ||
08da4cac KH |
522 | /* Build a new input file node for the language. There are several |
523 | ways in which we treat an input file, eg, we only look at symbols, | |
524 | or prefix it with a -l etc. | |
252b5132 | 525 | |
08da4cac | 526 | We can be supplied with requests for input files more than once; |
396a2467 | 527 | they may, for example be split over several lines like foo.o(.text) |
d1778b88 | 528 | foo.o(.data) etc, so when asked for a file we check that we haven't |
08da4cac | 529 | got it already so we don't duplicate the bfd. */ |
252b5132 | 530 | |
252b5132 RH |
531 | static lang_input_statement_type * |
532 | new_afile (name, file_type, target, add_to_list) | |
5f992e62 | 533 | const char *name; |
252b5132 | 534 | lang_input_file_enum_type file_type; |
5f992e62 | 535 | const char *target; |
b34976b6 | 536 | bfd_boolean add_to_list; |
252b5132 RH |
537 | { |
538 | lang_input_statement_type *p; | |
539 | ||
540 | if (add_to_list) | |
541 | p = new_stat (lang_input_statement, stat_ptr); | |
542 | else | |
543 | { | |
544 | p = ((lang_input_statement_type *) | |
545 | stat_alloc (sizeof (lang_input_statement_type))); | |
546 | p->header.next = NULL; | |
547 | } | |
548 | ||
b34976b6 | 549 | lang_has_input_file = TRUE; |
252b5132 | 550 | p->target = target; |
e3f2db7f | 551 | p->sysrooted = FALSE; |
252b5132 RH |
552 | switch (file_type) |
553 | { | |
554 | case lang_input_file_is_symbols_only_enum: | |
555 | p->filename = name; | |
b34976b6 AM |
556 | p->is_archive = FALSE; |
557 | p->real = TRUE; | |
252b5132 | 558 | p->local_sym_name = name; |
b34976b6 AM |
559 | p->just_syms_flag = TRUE; |
560 | p->search_dirs_flag = FALSE; | |
252b5132 RH |
561 | break; |
562 | case lang_input_file_is_fake_enum: | |
563 | p->filename = name; | |
b34976b6 AM |
564 | p->is_archive = FALSE; |
565 | p->real = FALSE; | |
252b5132 | 566 | p->local_sym_name = name; |
b34976b6 AM |
567 | p->just_syms_flag = FALSE; |
568 | p->search_dirs_flag = FALSE; | |
252b5132 RH |
569 | break; |
570 | case lang_input_file_is_l_enum: | |
b34976b6 | 571 | p->is_archive = TRUE; |
252b5132 | 572 | p->filename = name; |
b34976b6 | 573 | p->real = TRUE; |
252b5132 | 574 | p->local_sym_name = concat ("-l", name, (const char *) NULL); |
b34976b6 AM |
575 | p->just_syms_flag = FALSE; |
576 | p->search_dirs_flag = TRUE; | |
252b5132 RH |
577 | break; |
578 | case lang_input_file_is_marker_enum: | |
579 | p->filename = name; | |
b34976b6 AM |
580 | p->is_archive = FALSE; |
581 | p->real = FALSE; | |
252b5132 | 582 | p->local_sym_name = name; |
b34976b6 AM |
583 | p->just_syms_flag = FALSE; |
584 | p->search_dirs_flag = TRUE; | |
252b5132 RH |
585 | break; |
586 | case lang_input_file_is_search_file_enum: | |
e3f2db7f | 587 | p->sysrooted = ldlang_sysrooted_script; |
252b5132 | 588 | p->filename = name; |
b34976b6 AM |
589 | p->is_archive = FALSE; |
590 | p->real = TRUE; | |
252b5132 | 591 | p->local_sym_name = name; |
b34976b6 AM |
592 | p->just_syms_flag = FALSE; |
593 | p->search_dirs_flag = TRUE; | |
252b5132 RH |
594 | break; |
595 | case lang_input_file_is_file_enum: | |
596 | p->filename = name; | |
b34976b6 AM |
597 | p->is_archive = FALSE; |
598 | p->real = TRUE; | |
252b5132 | 599 | p->local_sym_name = name; |
b34976b6 AM |
600 | p->just_syms_flag = FALSE; |
601 | p->search_dirs_flag = FALSE; | |
252b5132 RH |
602 | break; |
603 | default: | |
604 | FAIL (); | |
605 | } | |
606 | p->the_bfd = (bfd *) NULL; | |
607 | p->asymbols = (asymbol **) NULL; | |
608 | p->next_real_file = (lang_statement_union_type *) NULL; | |
609 | p->next = (lang_statement_union_type *) NULL; | |
610 | p->symbol_count = 0; | |
611 | p->dynamic = config.dynamic_link; | |
612 | p->whole_archive = whole_archive; | |
b34976b6 | 613 | p->loaded = FALSE; |
252b5132 RH |
614 | lang_statement_append (&input_file_chain, |
615 | (lang_statement_union_type *) p, | |
616 | &p->next_real_file); | |
617 | return p; | |
618 | } | |
619 | ||
620 | lang_input_statement_type * | |
621 | lang_add_input_file (name, file_type, target) | |
5f992e62 | 622 | const char *name; |
252b5132 | 623 | lang_input_file_enum_type file_type; |
5f992e62 | 624 | const char *target; |
252b5132 | 625 | { |
b34976b6 AM |
626 | lang_has_input_file = TRUE; |
627 | return new_afile (name, file_type, target, TRUE); | |
252b5132 RH |
628 | } |
629 | ||
08da4cac KH |
630 | /* Build enough state so that the parser can build its tree. */ |
631 | ||
252b5132 RH |
632 | void |
633 | lang_init () | |
634 | { | |
635 | obstack_begin (&stat_obstack, 1000); | |
636 | ||
637 | stat_ptr = &statement_list; | |
638 | ||
639 | lang_list_init (stat_ptr); | |
640 | ||
641 | lang_list_init (&input_file_chain); | |
642 | lang_list_init (&lang_output_section_statement); | |
643 | lang_list_init (&file_chain); | |
644 | first_file = lang_add_input_file ((char *) NULL, | |
645 | lang_input_file_is_marker_enum, | |
646 | (char *) NULL); | |
08da4cac KH |
647 | abs_output_section = |
648 | lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME); | |
252b5132 RH |
649 | |
650 | abs_output_section->bfd_section = bfd_abs_section_ptr; | |
651 | ||
652 | } | |
653 | ||
654 | /*---------------------------------------------------------------------- | |
08da4cac KH |
655 | A region is an area of memory declared with the |
656 | MEMORY { name:org=exp, len=exp ... } | |
657 | syntax. | |
252b5132 | 658 | |
08da4cac | 659 | We maintain a list of all the regions here. |
252b5132 | 660 | |
08da4cac KH |
661 | If no regions are specified in the script, then the default is used |
662 | which is created when looked up to be the entire data space. */ | |
252b5132 RH |
663 | |
664 | static lang_memory_region_type *lang_memory_region_list; | |
665 | static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list; | |
666 | ||
667 | lang_memory_region_type * | |
668 | lang_memory_region_lookup (name) | |
5f992e62 | 669 | const char *const name; |
252b5132 RH |
670 | { |
671 | lang_memory_region_type *p; | |
672 | ||
9f88b410 RS |
673 | /* NAME is NULL for LMA memspecs if no region was specified. */ |
674 | if (name == NULL) | |
675 | return NULL; | |
676 | ||
252b5132 RH |
677 | for (p = lang_memory_region_list; |
678 | p != (lang_memory_region_type *) NULL; | |
679 | p = p->next) | |
680 | { | |
681 | if (strcmp (p->name, name) == 0) | |
682 | { | |
683 | return p; | |
684 | } | |
685 | } | |
686 | ||
687 | #if 0 | |
688 | /* This code used to always use the first region in the list as the | |
689 | default region. I changed it to instead use a region | |
690 | encompassing all of memory as the default region. This permits | |
691 | NOLOAD sections to work reasonably without requiring a region. | |
692 | People should specify what region they mean, if they really want | |
693 | a region. */ | |
694 | if (strcmp (name, "*default*") == 0) | |
695 | { | |
696 | if (lang_memory_region_list != (lang_memory_region_type *) NULL) | |
697 | { | |
698 | return lang_memory_region_list; | |
699 | } | |
700 | } | |
701 | #endif | |
702 | ||
703 | { | |
704 | lang_memory_region_type *new = | |
705 | (lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type)); | |
706 | ||
d1b2b2dc | 707 | new->name = xstrdup (name); |
252b5132 RH |
708 | new->next = (lang_memory_region_type *) NULL; |
709 | ||
710 | *lang_memory_region_list_tail = new; | |
711 | lang_memory_region_list_tail = &new->next; | |
712 | new->origin = 0; | |
713 | new->flags = 0; | |
714 | new->not_flags = 0; | |
08da4cac | 715 | new->length = ~(bfd_size_type) 0; |
252b5132 | 716 | new->current = 0; |
b34976b6 | 717 | new->had_full_message = FALSE; |
252b5132 RH |
718 | |
719 | return new; | |
720 | } | |
721 | } | |
722 | ||
5f992e62 | 723 | static lang_memory_region_type * |
252b5132 RH |
724 | lang_memory_default (section) |
725 | asection *section; | |
726 | { | |
727 | lang_memory_region_type *p; | |
728 | ||
729 | flagword sec_flags = section->flags; | |
730 | ||
731 | /* Override SEC_DATA to mean a writable section. */ | |
732 | if ((sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE)) == SEC_ALLOC) | |
733 | sec_flags |= SEC_DATA; | |
734 | ||
735 | for (p = lang_memory_region_list; | |
736 | p != (lang_memory_region_type *) NULL; | |
737 | p = p->next) | |
738 | { | |
739 | if ((p->flags & sec_flags) != 0 | |
740 | && (p->not_flags & sec_flags) == 0) | |
741 | { | |
742 | return p; | |
743 | } | |
744 | } | |
745 | return lang_memory_region_lookup ("*default*"); | |
746 | } | |
747 | ||
748 | lang_output_section_statement_type * | |
749 | lang_output_section_find (name) | |
5f992e62 | 750 | const char *const name; |
252b5132 RH |
751 | { |
752 | lang_statement_union_type *u; | |
753 | lang_output_section_statement_type *lookup; | |
754 | ||
755 | for (u = lang_output_section_statement.head; | |
756 | u != (lang_statement_union_type *) NULL; | |
757 | u = lookup->next) | |
758 | { | |
759 | lookup = &u->output_section_statement; | |
760 | if (strcmp (name, lookup->name) == 0) | |
761 | { | |
762 | return lookup; | |
763 | } | |
764 | } | |
765 | return (lang_output_section_statement_type *) NULL; | |
766 | } | |
767 | ||
768 | lang_output_section_statement_type * | |
769 | lang_output_section_statement_lookup (name) | |
5f992e62 | 770 | const char *const name; |
252b5132 RH |
771 | { |
772 | lang_output_section_statement_type *lookup; | |
773 | ||
774 | lookup = lang_output_section_find (name); | |
775 | if (lookup == (lang_output_section_statement_type *) NULL) | |
776 | { | |
777 | ||
778 | lookup = (lang_output_section_statement_type *) | |
779 | new_stat (lang_output_section_statement, stat_ptr); | |
780 | lookup->region = (lang_memory_region_type *) NULL; | |
562d3460 | 781 | lookup->lma_region = (lang_memory_region_type *) NULL; |
2c382fb6 | 782 | lookup->fill = (fill_type *) 0; |
252b5132 RH |
783 | lookup->block_value = 1; |
784 | lookup->name = name; | |
785 | ||
786 | lookup->next = (lang_statement_union_type *) NULL; | |
787 | lookup->bfd_section = (asection *) NULL; | |
b34976b6 | 788 | lookup->processed = FALSE; |
252b5132 RH |
789 | lookup->sectype = normal_section; |
790 | lookup->addr_tree = (etree_type *) NULL; | |
791 | lang_list_init (&lookup->children); | |
792 | ||
5f992e62 | 793 | lookup->memspec = (const char *) NULL; |
252b5132 RH |
794 | lookup->flags = 0; |
795 | lookup->subsection_alignment = -1; | |
796 | lookup->section_alignment = -1; | |
797 | lookup->load_base = (union etree_union *) NULL; | |
9f88b410 | 798 | lookup->update_dot_tree = NULL; |
252b5132 RH |
799 | lookup->phdrs = NULL; |
800 | ||
801 | lang_statement_append (&lang_output_section_statement, | |
802 | (lang_statement_union_type *) lookup, | |
803 | &lookup->next); | |
804 | } | |
805 | return lookup; | |
806 | } | |
807 | ||
808 | static void | |
809 | lang_map_flags (flag) | |
810 | flagword flag; | |
811 | { | |
812 | if (flag & SEC_ALLOC) | |
813 | minfo ("a"); | |
814 | ||
815 | if (flag & SEC_CODE) | |
816 | minfo ("x"); | |
817 | ||
818 | if (flag & SEC_READONLY) | |
819 | minfo ("r"); | |
820 | ||
821 | if (flag & SEC_DATA) | |
822 | minfo ("w"); | |
823 | ||
824 | if (flag & SEC_LOAD) | |
825 | minfo ("l"); | |
826 | } | |
827 | ||
828 | void | |
829 | lang_map () | |
830 | { | |
831 | lang_memory_region_type *m; | |
832 | ||
833 | minfo (_("\nMemory Configuration\n\n")); | |
834 | fprintf (config.map_file, "%-16s %-18s %-18s %s\n", | |
835 | _("Name"), _("Origin"), _("Length"), _("Attributes")); | |
836 | ||
837 | for (m = lang_memory_region_list; | |
838 | m != (lang_memory_region_type *) NULL; | |
839 | m = m->next) | |
840 | { | |
841 | char buf[100]; | |
842 | int len; | |
843 | ||
844 | fprintf (config.map_file, "%-16s ", m->name); | |
845 | ||
846 | sprintf_vma (buf, m->origin); | |
847 | minfo ("0x%s ", buf); | |
848 | len = strlen (buf); | |
849 | while (len < 16) | |
850 | { | |
851 | print_space (); | |
852 | ++len; | |
853 | } | |
854 | ||
855 | minfo ("0x%V", m->length); | |
856 | if (m->flags || m->not_flags) | |
857 | { | |
858 | #ifndef BFD64 | |
859 | minfo (" "); | |
860 | #endif | |
861 | if (m->flags) | |
862 | { | |
863 | print_space (); | |
864 | lang_map_flags (m->flags); | |
865 | } | |
866 | ||
867 | if (m->not_flags) | |
868 | { | |
869 | minfo (" !"); | |
870 | lang_map_flags (m->not_flags); | |
871 | } | |
872 | } | |
873 | ||
874 | print_nl (); | |
875 | } | |
876 | ||
877 | fprintf (config.map_file, _("\nLinker script and memory map\n\n")); | |
878 | ||
879 | print_statements (); | |
880 | } | |
881 | ||
882 | /* Initialize an output section. */ | |
883 | ||
884 | static void | |
885 | init_os (s) | |
886 | lang_output_section_statement_type *s; | |
887 | { | |
888 | section_userdata_type *new; | |
889 | ||
890 | if (s->bfd_section != NULL) | |
891 | return; | |
892 | ||
893 | if (strcmp (s->name, DISCARD_SECTION_NAME) == 0) | |
6f9efd97 | 894 | einfo (_("%P%F: Illegal use of `%s' section\n"), DISCARD_SECTION_NAME); |
252b5132 RH |
895 | |
896 | new = ((section_userdata_type *) | |
897 | stat_alloc (sizeof (section_userdata_type))); | |
898 | ||
899 | s->bfd_section = bfd_get_section_by_name (output_bfd, s->name); | |
900 | if (s->bfd_section == (asection *) NULL) | |
901 | s->bfd_section = bfd_make_section (output_bfd, s->name); | |
902 | if (s->bfd_section == (asection *) NULL) | |
903 | { | |
904 | einfo (_("%P%F: output format %s cannot represent section called %s\n"), | |
905 | output_bfd->xvec->name, s->name); | |
906 | } | |
907 | s->bfd_section->output_section = s->bfd_section; | |
908 | ||
08da4cac KH |
909 | /* We initialize an output sections output offset to minus its own |
910 | vma to allow us to output a section through itself. */ | |
252b5132 RH |
911 | s->bfd_section->output_offset = 0; |
912 | get_userdata (s->bfd_section) = (PTR) new; | |
913 | ||
914 | /* If there is a base address, make sure that any sections it might | |
915 | mention are initialized. */ | |
916 | if (s->addr_tree != NULL) | |
917 | exp_init_os (s->addr_tree); | |
18794b0c AM |
918 | |
919 | if (s->load_base != NULL) | |
920 | exp_init_os (s->load_base); | |
252b5132 RH |
921 | } |
922 | ||
923 | /* Make sure that all output sections mentioned in an expression are | |
924 | initialized. */ | |
925 | ||
926 | static void | |
927 | exp_init_os (exp) | |
928 | etree_type *exp; | |
929 | { | |
930 | switch (exp->type.node_class) | |
931 | { | |
932 | case etree_assign: | |
933 | exp_init_os (exp->assign.src); | |
934 | break; | |
935 | ||
936 | case etree_binary: | |
937 | exp_init_os (exp->binary.lhs); | |
938 | exp_init_os (exp->binary.rhs); | |
939 | break; | |
940 | ||
941 | case etree_trinary: | |
942 | exp_init_os (exp->trinary.cond); | |
943 | exp_init_os (exp->trinary.lhs); | |
944 | exp_init_os (exp->trinary.rhs); | |
945 | break; | |
946 | ||
947 | case etree_unary: | |
948 | exp_init_os (exp->unary.child); | |
949 | break; | |
950 | ||
951 | case etree_name: | |
952 | switch (exp->type.node_code) | |
953 | { | |
954 | case ADDR: | |
955 | case LOADADDR: | |
956 | case SIZEOF: | |
957 | { | |
958 | lang_output_section_statement_type *os; | |
959 | ||
960 | os = lang_output_section_find (exp->name.name); | |
961 | if (os != NULL && os->bfd_section == NULL) | |
962 | init_os (os); | |
963 | } | |
964 | } | |
965 | break; | |
966 | ||
967 | default: | |
968 | break; | |
969 | } | |
970 | } | |
9503fd87 | 971 | \f |
252b5132 | 972 | /* Sections marked with the SEC_LINK_ONCE flag should only be linked |
9503fd87 ILT |
973 | once into the output. This routine checks each section, and |
974 | arrange to discard it if a section of the same name has already | |
bb8fe706 ILT |
975 | been linked. If the section has COMDAT information, then it uses |
976 | that to decide whether the section should be included. This code | |
977 | assumes that all relevant sections have the SEC_LINK_ONCE flag set; | |
9503fd87 ILT |
978 | that is, it does not depend solely upon the section name. |
979 | section_already_linked is called via bfd_map_over_sections. */ | |
980 | ||
981 | /* This is the shape of the elements inside the already_linked hash | |
982 | table. It maps a name onto a list of already_linked elements with | |
983 | the same name. It's possible to get more than one element in a | |
984 | list if the COMDAT sections have different names. */ | |
985 | ||
5f992e62 | 986 | struct already_linked_hash_entry |
9503fd87 ILT |
987 | { |
988 | struct bfd_hash_entry root; | |
989 | struct already_linked *entry; | |
990 | }; | |
991 | ||
5f992e62 | 992 | struct already_linked |
9503fd87 ILT |
993 | { |
994 | struct already_linked *next; | |
995 | asection *sec; | |
996 | }; | |
997 | ||
998 | /* The hash table. */ | |
999 | ||
1000 | static struct bfd_hash_table already_linked_table; | |
252b5132 | 1001 | |
252b5132 RH |
1002 | static void |
1003 | section_already_linked (abfd, sec, data) | |
1004 | bfd *abfd; | |
1005 | asection *sec; | |
1006 | PTR data; | |
1007 | { | |
1008 | lang_input_statement_type *entry = (lang_input_statement_type *) data; | |
252b5132 RH |
1009 | flagword flags; |
1010 | const char *name; | |
9503fd87 ILT |
1011 | struct already_linked *l; |
1012 | struct already_linked_hash_entry *already_linked_list; | |
252b5132 RH |
1013 | |
1014 | /* If we are only reading symbols from this object, then we want to | |
1015 | discard all sections. */ | |
1016 | if (entry->just_syms_flag) | |
1017 | { | |
c2c01aa7 | 1018 | bfd_link_just_syms (sec, &link_info); |
252b5132 RH |
1019 | return; |
1020 | } | |
1021 | ||
1022 | flags = bfd_get_section_flags (abfd, sec); | |
1023 | ||
1024 | if ((flags & SEC_LINK_ONCE) == 0) | |
1025 | return; | |
1026 | ||
577a0623 | 1027 | /* FIXME: When doing a relocatable link, we may have trouble |
e361c369 ILT |
1028 | copying relocations in other sections that refer to local symbols |
1029 | in the section being discarded. Those relocations will have to | |
1030 | be converted somehow; as of this writing I'm not sure that any of | |
1031 | the backends handle that correctly. | |
1032 | ||
1033 | It is tempting to instead not discard link once sections when | |
577a0623 | 1034 | doing a relocatable link (technically, they should be discarded |
e361c369 ILT |
1035 | whenever we are building constructors). However, that fails, |
1036 | because the linker winds up combining all the link once sections | |
1037 | into a single large link once section, which defeats the purpose | |
1038 | of having link once sections in the first place. | |
1039 | ||
577a0623 | 1040 | Also, not merging link once sections in a relocatable link |
9ad85d9b | 1041 | causes trouble for MIPS ELF, which relies on link once semantics |
e361c369 ILT |
1042 | to handle the .reginfo section correctly. */ |
1043 | ||
252b5132 RH |
1044 | name = bfd_get_section_name (abfd, sec); |
1045 | ||
5f992e62 | 1046 | already_linked_list = |
9503fd87 | 1047 | ((struct already_linked_hash_entry *) |
b34976b6 | 1048 | bfd_hash_lookup (&already_linked_table, name, TRUE, FALSE)); |
9503fd87 | 1049 | |
08da4cac | 1050 | for (l = already_linked_list->entry; l != NULL; l = l->next) |
252b5132 | 1051 | { |
9503fd87 ILT |
1052 | if (sec->comdat == NULL |
1053 | || l->sec->comdat == NULL | |
1054 | || strcmp (sec->comdat->name, l->sec->comdat->name) == 0) | |
252b5132 RH |
1055 | { |
1056 | /* The section has already been linked. See if we should | |
1057 | issue a warning. */ | |
1058 | switch (flags & SEC_LINK_DUPLICATES) | |
1059 | { | |
1060 | default: | |
1061 | abort (); | |
1062 | ||
1063 | case SEC_LINK_DUPLICATES_DISCARD: | |
1064 | break; | |
1065 | ||
1066 | case SEC_LINK_DUPLICATES_ONE_ONLY: | |
bb8fe706 ILT |
1067 | if (sec->comdat == NULL) |
1068 | einfo (_("%P: %B: warning: ignoring duplicate section `%s'\n"), | |
1069 | abfd, name); | |
1070 | else | |
1071 | einfo (_("%P: %B: warning: ignoring duplicate `%s' section symbol `%s'\n"), | |
1072 | abfd, name, sec->comdat->name); | |
252b5132 RH |
1073 | break; |
1074 | ||
1075 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: | |
1076 | /* FIXME: We should really dig out the contents of both | |
1077 | sections and memcmp them. The COFF/PE spec says that | |
1078 | the Microsoft linker does not implement this | |
1079 | correctly, so I'm not going to bother doing it | |
1080 | either. */ | |
1081 | /* Fall through. */ | |
1082 | case SEC_LINK_DUPLICATES_SAME_SIZE: | |
1083 | if (bfd_section_size (abfd, sec) | |
1084 | != bfd_section_size (l->sec->owner, l->sec)) | |
1085 | einfo (_("%P: %B: warning: duplicate section `%s' has different size\n"), | |
1086 | abfd, name); | |
1087 | break; | |
1088 | } | |
1089 | ||
39dcfe18 AM |
1090 | /* Set the output_section field so that lang_add_section |
1091 | does not create a lang_input_section structure for this | |
f97b9cb8 L |
1092 | section. Since there might be a symbol in the section |
1093 | being discarded, we must retain a pointer to the section | |
1094 | which we are really going to use. */ | |
252b5132 | 1095 | sec->output_section = bfd_abs_section_ptr; |
f97b9cb8 | 1096 | sec->kept_section = l->sec; |
252b5132 | 1097 | |
9ad85d9b AM |
1098 | if (flags & SEC_GROUP) |
1099 | bfd_discard_group (abfd, sec); | |
1100 | ||
252b5132 RH |
1101 | return; |
1102 | } | |
1103 | } | |
1104 | ||
9503fd87 ILT |
1105 | /* This is the first section with this name. Record it. Allocate |
1106 | the memory from the same obstack as the hash table is kept in. */ | |
1107 | ||
5f992e62 | 1108 | l = ((struct already_linked *) |
9503fd87 | 1109 | bfd_hash_allocate (&already_linked_table, sizeof *l)); |
252b5132 | 1110 | |
252b5132 | 1111 | l->sec = sec; |
9503fd87 ILT |
1112 | l->next = already_linked_list->entry; |
1113 | already_linked_list->entry = l; | |
1114 | } | |
1115 | ||
1116 | /* Support routines for the hash table used by section_already_linked, | |
1117 | initialize the table, fill in an entry and remove the table. */ | |
1118 | ||
1119 | static struct bfd_hash_entry * | |
1120 | already_linked_newfunc (entry, table, string) | |
1121 | struct bfd_hash_entry *entry ATTRIBUTE_UNUSED; | |
1122 | struct bfd_hash_table *table; | |
1123 | const char *string ATTRIBUTE_UNUSED; | |
1124 | { | |
5f992e62 | 1125 | struct already_linked_hash_entry *ret = |
9503fd87 ILT |
1126 | bfd_hash_allocate (table, sizeof (struct already_linked_hash_entry)); |
1127 | ||
1128 | ret->entry = NULL; | |
1129 | ||
1130 | return (struct bfd_hash_entry *) ret; | |
1131 | } | |
1132 | ||
1133 | static void | |
1134 | already_linked_table_init () | |
1135 | { | |
1136 | if (! bfd_hash_table_init_n (&already_linked_table, | |
1137 | already_linked_newfunc, | |
1138 | 42)) | |
1139 | einfo (_("%P%F: Failed to create hash table\n")); | |
1140 | } | |
1141 | ||
1142 | static void | |
1143 | already_linked_table_free () | |
1144 | { | |
1145 | bfd_hash_table_free (&already_linked_table); | |
252b5132 RH |
1146 | } |
1147 | \f | |
1148 | /* The wild routines. | |
1149 | ||
1150 | These expand statements like *(.text) and foo.o to a list of | |
1151 | explicit actions, like foo.o(.text), bar.o(.text) and | |
1152 | foo.o(.text, .data). */ | |
1153 | ||
b34976b6 | 1154 | /* Return TRUE if the PATTERN argument is a wildcard pattern. |
252b5132 RH |
1155 | Although backslashes are treated specially if a pattern contains |
1156 | wildcards, we do not consider the mere presence of a backslash to | |
ca0c1d3e | 1157 | be enough to cause the pattern to be treated as a wildcard. |
252b5132 RH |
1158 | That lets us handle DOS filenames more naturally. */ |
1159 | ||
b34976b6 | 1160 | static bfd_boolean |
252b5132 RH |
1161 | wildcardp (pattern) |
1162 | const char *pattern; | |
1163 | { | |
1164 | const char *s; | |
1165 | ||
1166 | for (s = pattern; *s != '\0'; ++s) | |
1167 | if (*s == '?' | |
1168 | || *s == '*' | |
1169 | || *s == '[') | |
b34976b6 AM |
1170 | return TRUE; |
1171 | return FALSE; | |
252b5132 RH |
1172 | } |
1173 | ||
1174 | /* Add SECTION to the output section OUTPUT. Do this by creating a | |
1175 | lang_input_section statement which is placed at PTR. FILE is the | |
1176 | input file which holds SECTION. */ | |
1177 | ||
1178 | void | |
39dcfe18 | 1179 | lang_add_section (ptr, section, output, file) |
252b5132 RH |
1180 | lang_statement_list_type *ptr; |
1181 | asection *section; | |
1182 | lang_output_section_statement_type *output; | |
1183 | lang_input_statement_type *file; | |
1184 | { | |
1185 | flagword flags; | |
b34976b6 | 1186 | bfd_boolean discard; |
252b5132 RH |
1187 | |
1188 | flags = bfd_get_section_flags (section->owner, section); | |
1189 | ||
b34976b6 | 1190 | discard = FALSE; |
252b5132 | 1191 | |
c4c41219 AM |
1192 | /* Discard sections marked with SEC_EXCLUDE if we are doing a final |
1193 | link. Discard debugging sections marked with SEC_EXCLUDE on a | |
1194 | relocatable link too. */ | |
1195 | if ((flags & SEC_EXCLUDE) != 0 | |
1196 | && ((flags & SEC_DEBUGGING) != 0 || !link_info.relocateable)) | |
b34976b6 | 1197 | discard = TRUE; |
252b5132 RH |
1198 | |
1199 | /* Discard input sections which are assigned to a section named | |
1200 | DISCARD_SECTION_NAME. */ | |
1201 | if (strcmp (output->name, DISCARD_SECTION_NAME) == 0) | |
b34976b6 | 1202 | discard = TRUE; |
252b5132 RH |
1203 | |
1204 | /* Discard debugging sections if we are stripping debugging | |
1205 | information. */ | |
1206 | if ((link_info.strip == strip_debugger || link_info.strip == strip_all) | |
1207 | && (flags & SEC_DEBUGGING) != 0) | |
b34976b6 | 1208 | discard = TRUE; |
252b5132 RH |
1209 | |
1210 | if (discard) | |
1211 | { | |
1212 | if (section->output_section == NULL) | |
1213 | { | |
1214 | /* This prevents future calls from assigning this section. */ | |
1215 | section->output_section = bfd_abs_section_ptr; | |
1216 | } | |
1217 | return; | |
1218 | } | |
1219 | ||
1220 | if (section->output_section == NULL) | |
1221 | { | |
b34976b6 | 1222 | bfd_boolean first; |
252b5132 RH |
1223 | lang_input_section_type *new; |
1224 | flagword flags; | |
1225 | ||
1226 | if (output->bfd_section == NULL) | |
d1778b88 AM |
1227 | init_os (output); |
1228 | ||
1229 | first = ! output->bfd_section->linker_has_input; | |
1230 | output->bfd_section->linker_has_input = 1; | |
252b5132 | 1231 | |
08da4cac | 1232 | /* Add a section reference to the list. */ |
252b5132 RH |
1233 | new = new_stat (lang_input_section, ptr); |
1234 | ||
1235 | new->section = section; | |
1236 | new->ifile = file; | |
1237 | section->output_section = output->bfd_section; | |
1238 | ||
1239 | flags = section->flags; | |
1240 | ||
1241 | /* We don't copy the SEC_NEVER_LOAD flag from an input section | |
1242 | to an output section, because we want to be able to include a | |
1243 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
1244 | section (I don't know why we want to do this, but we do). | |
1245 | build_link_order in ldwrite.c handles this case by turning | |
1246 | the embedded SEC_NEVER_LOAD section into a fill. */ | |
1247 | ||
1248 | flags &= ~ SEC_NEVER_LOAD; | |
1249 | ||
1250 | /* If final link, don't copy the SEC_LINK_ONCE flags, they've | |
1251 | already been processed. One reason to do this is that on pe | |
1252 | format targets, .text$foo sections go into .text and it's odd | |
1253 | to see .text with SEC_LINK_ONCE set. */ | |
1254 | ||
1255 | if (! link_info.relocateable) | |
1256 | flags &= ~ (SEC_LINK_ONCE | SEC_LINK_DUPLICATES); | |
1257 | ||
1258 | /* If this is not the first input section, and the SEC_READONLY | |
1259 | flag is not currently set, then don't set it just because the | |
1260 | input section has it set. */ | |
1261 | ||
1262 | if (! first && (section->output_section->flags & SEC_READONLY) == 0) | |
1263 | flags &= ~ SEC_READONLY; | |
1264 | ||
f5fa8ca2 JJ |
1265 | /* Keep SEC_MERGE and SEC_STRINGS only if they are the same. */ |
1266 | if (! first | |
1267 | && ((section->output_section->flags & (SEC_MERGE | SEC_STRINGS)) | |
1268 | != (flags & (SEC_MERGE | SEC_STRINGS)) | |
1269 | || ((flags & SEC_MERGE) | |
1270 | && section->output_section->entsize != section->entsize))) | |
1271 | { | |
1272 | section->output_section->flags &= ~ (SEC_MERGE | SEC_STRINGS); | |
1273 | flags &= ~ (SEC_MERGE | SEC_STRINGS); | |
1274 | } | |
1275 | ||
13ae64f3 | 1276 | /* For now make .tbss normal section. */ |
704afa60 | 1277 | if ((flags & SEC_THREAD_LOCAL) && ! link_info.relocateable) |
13ae64f3 JJ |
1278 | flags |= SEC_LOAD; |
1279 | ||
252b5132 RH |
1280 | section->output_section->flags |= flags; |
1281 | ||
f5fa8ca2 JJ |
1282 | if (flags & SEC_MERGE) |
1283 | section->output_section->entsize = section->entsize; | |
1284 | ||
252b5132 RH |
1285 | /* If SEC_READONLY is not set in the input section, then clear |
1286 | it from the output section. */ | |
1287 | if ((section->flags & SEC_READONLY) == 0) | |
1288 | section->output_section->flags &= ~SEC_READONLY; | |
1289 | ||
1290 | switch (output->sectype) | |
1291 | { | |
1292 | case normal_section: | |
1293 | break; | |
1294 | case dsect_section: | |
1295 | case copy_section: | |
1296 | case info_section: | |
1297 | case overlay_section: | |
1298 | output->bfd_section->flags &= ~SEC_ALLOC; | |
1299 | break; | |
1300 | case noload_section: | |
1301 | output->bfd_section->flags &= ~SEC_LOAD; | |
1302 | output->bfd_section->flags |= SEC_NEVER_LOAD; | |
1303 | break; | |
1304 | } | |
1305 | ||
667f5177 ILT |
1306 | /* Copy over SEC_SMALL_DATA. */ |
1307 | if (section->flags & SEC_SMALL_DATA) | |
1308 | section->output_section->flags |= SEC_SMALL_DATA; | |
9e41f973 | 1309 | |
252b5132 RH |
1310 | if (section->alignment_power > output->bfd_section->alignment_power) |
1311 | output->bfd_section->alignment_power = section->alignment_power; | |
1312 | ||
396a2467 | 1313 | /* If supplied an alignment, then force it. */ |
252b5132 RH |
1314 | if (output->section_alignment != -1) |
1315 | output->bfd_section->alignment_power = output->section_alignment; | |
74459f0e TW |
1316 | |
1317 | if (section->flags & SEC_BLOCK) | |
08da4cac KH |
1318 | { |
1319 | section->output_section->flags |= SEC_BLOCK; | |
1320 | /* FIXME: This value should really be obtained from the bfd... */ | |
1321 | output->block_value = 128; | |
1322 | } | |
252b5132 RH |
1323 | } |
1324 | } | |
1325 | ||
1326 | /* Handle wildcard sorting. This returns the lang_input_section which | |
1327 | should follow the one we are going to create for SECTION and FILE, | |
1328 | based on the sorting requirements of WILD. It returns NULL if the | |
1329 | new section should just go at the end of the current list. */ | |
1330 | ||
1331 | static lang_statement_union_type * | |
b6bf44ba | 1332 | wild_sort (wild, sec, file, section) |
252b5132 | 1333 | lang_wild_statement_type *wild; |
b6bf44ba | 1334 | struct wildcard_list *sec; |
252b5132 RH |
1335 | lang_input_statement_type *file; |
1336 | asection *section; | |
1337 | { | |
1338 | const char *section_name; | |
1339 | lang_statement_union_type *l; | |
1340 | ||
b6bf44ba | 1341 | if (!wild->filenames_sorted && (sec == NULL || !sec->spec.sorted)) |
252b5132 RH |
1342 | return NULL; |
1343 | ||
1344 | section_name = bfd_get_section_name (file->the_bfd, section); | |
bba1a0c0 | 1345 | for (l = wild->children.head; l != NULL; l = l->header.next) |
252b5132 RH |
1346 | { |
1347 | lang_input_section_type *ls; | |
1348 | ||
1349 | if (l->header.type != lang_input_section_enum) | |
1350 | continue; | |
1351 | ls = &l->input_section; | |
1352 | ||
1353 | /* Sorting by filename takes precedence over sorting by section | |
1354 | name. */ | |
1355 | ||
1356 | if (wild->filenames_sorted) | |
1357 | { | |
1358 | const char *fn, *ln; | |
b34976b6 | 1359 | bfd_boolean fa, la; |
252b5132 RH |
1360 | int i; |
1361 | ||
1362 | /* The PE support for the .idata section as generated by | |
1363 | dlltool assumes that files will be sorted by the name of | |
1364 | the archive and then the name of the file within the | |
1365 | archive. */ | |
1366 | ||
1367 | if (file->the_bfd != NULL | |
1368 | && bfd_my_archive (file->the_bfd) != NULL) | |
1369 | { | |
1370 | fn = bfd_get_filename (bfd_my_archive (file->the_bfd)); | |
b34976b6 | 1371 | fa = TRUE; |
252b5132 RH |
1372 | } |
1373 | else | |
1374 | { | |
1375 | fn = file->filename; | |
b34976b6 | 1376 | fa = FALSE; |
252b5132 RH |
1377 | } |
1378 | ||
1379 | if (ls->ifile->the_bfd != NULL | |
1380 | && bfd_my_archive (ls->ifile->the_bfd) != NULL) | |
1381 | { | |
1382 | ln = bfd_get_filename (bfd_my_archive (ls->ifile->the_bfd)); | |
b34976b6 | 1383 | la = TRUE; |
252b5132 RH |
1384 | } |
1385 | else | |
1386 | { | |
1387 | ln = ls->ifile->filename; | |
b34976b6 | 1388 | la = FALSE; |
252b5132 RH |
1389 | } |
1390 | ||
1391 | i = strcmp (fn, ln); | |
1392 | if (i > 0) | |
1393 | continue; | |
1394 | else if (i < 0) | |
1395 | break; | |
1396 | ||
1397 | if (fa || la) | |
1398 | { | |
1399 | if (fa) | |
1400 | fn = file->filename; | |
1401 | if (la) | |
1402 | ln = ls->ifile->filename; | |
1403 | ||
1404 | i = strcmp (fn, ln); | |
1405 | if (i > 0) | |
1406 | continue; | |
1407 | else if (i < 0) | |
1408 | break; | |
1409 | } | |
1410 | } | |
1411 | ||
1412 | /* Here either the files are not sorted by name, or we are | |
1413 | looking at the sections for this file. */ | |
1414 | ||
b6bf44ba | 1415 | if (sec != NULL && sec->spec.sorted) |
252b5132 RH |
1416 | { |
1417 | if (strcmp (section_name, | |
1418 | bfd_get_section_name (ls->ifile->the_bfd, | |
1419 | ls->section)) | |
1420 | < 0) | |
1421 | break; | |
1422 | } | |
1423 | } | |
1424 | ||
1425 | return l; | |
1426 | } | |
1427 | ||
1428 | /* Expand a wild statement for a particular FILE. SECTION may be | |
1429 | NULL, in which case it is a wild card. */ | |
1430 | ||
1431 | static void | |
b6bf44ba | 1432 | output_section_callback (ptr, sec, section, file, output) |
252b5132 | 1433 | lang_wild_statement_type *ptr; |
b6bf44ba | 1434 | struct wildcard_list *sec; |
4dec4d4e | 1435 | asection *section; |
252b5132 | 1436 | lang_input_statement_type *file; |
5f992e62 | 1437 | PTR output; |
4dec4d4e RH |
1438 | { |
1439 | lang_statement_union_type *before; | |
5f992e62 | 1440 | |
b6bf44ba AM |
1441 | /* Exclude sections that match UNIQUE_SECTION_LIST. */ |
1442 | if (unique_section_p (bfd_get_section_name (file->the_bfd, section))) | |
1443 | return; | |
1444 | ||
4dec4d4e RH |
1445 | /* If the wild pattern was marked KEEP, the member sections |
1446 | should be as well. */ | |
1447 | if (ptr->keep_sections) | |
1448 | section->flags |= SEC_KEEP; | |
5f992e62 | 1449 | |
b6bf44ba | 1450 | before = wild_sort (ptr, sec, file, section); |
5f992e62 | 1451 | |
4dec4d4e RH |
1452 | /* Here BEFORE points to the lang_input_section which |
1453 | should follow the one we are about to add. If BEFORE | |
1454 | is NULL, then the section should just go at the end | |
1455 | of the current list. */ | |
5f992e62 | 1456 | |
4dec4d4e | 1457 | if (before == NULL) |
39dcfe18 AM |
1458 | lang_add_section (&ptr->children, section, |
1459 | (lang_output_section_statement_type *) output, | |
1460 | file); | |
4dec4d4e | 1461 | else |
252b5132 | 1462 | { |
4dec4d4e RH |
1463 | lang_statement_list_type list; |
1464 | lang_statement_union_type **pp; | |
5f992e62 | 1465 | |
4dec4d4e | 1466 | lang_list_init (&list); |
39dcfe18 AM |
1467 | lang_add_section (&list, section, |
1468 | (lang_output_section_statement_type *) output, | |
1469 | file); | |
5f992e62 | 1470 | |
4dec4d4e RH |
1471 | /* If we are discarding the section, LIST.HEAD will |
1472 | be NULL. */ | |
1473 | if (list.head != NULL) | |
252b5132 | 1474 | { |
bba1a0c0 | 1475 | ASSERT (list.head->header.next == NULL); |
5f992e62 | 1476 | |
4dec4d4e RH |
1477 | for (pp = &ptr->children.head; |
1478 | *pp != before; | |
bba1a0c0 | 1479 | pp = &(*pp)->header.next) |
4dec4d4e | 1480 | ASSERT (*pp != NULL); |
5f992e62 | 1481 | |
bba1a0c0 | 1482 | list.head->header.next = *pp; |
4dec4d4e | 1483 | *pp = list.head; |
252b5132 RH |
1484 | } |
1485 | } | |
1486 | } | |
1487 | ||
1488 | /* This is passed a file name which must have been seen already and | |
1489 | added to the statement tree. We will see if it has been opened | |
1490 | already and had its symbols read. If not then we'll read it. */ | |
1491 | ||
1492 | static lang_input_statement_type * | |
1493 | lookup_name (name) | |
1494 | const char *name; | |
1495 | { | |
1496 | lang_input_statement_type *search; | |
1497 | ||
1498 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
1499 | search != (lang_input_statement_type *) NULL; | |
1500 | search = (lang_input_statement_type *) search->next_real_file) | |
1501 | { | |
1502 | if (search->filename == (char *) NULL && name == (char *) NULL) | |
1503 | return search; | |
1504 | if (search->filename != (char *) NULL | |
1505 | && name != (char *) NULL | |
1506 | && strcmp (search->filename, name) == 0) | |
1507 | break; | |
1508 | } | |
1509 | ||
1510 | if (search == (lang_input_statement_type *) NULL) | |
1511 | search = new_afile (name, lang_input_file_is_file_enum, default_target, | |
b34976b6 | 1512 | FALSE); |
252b5132 RH |
1513 | |
1514 | /* If we have already added this file, or this file is not real | |
1515 | (FIXME: can that ever actually happen?) or the name is NULL | |
1516 | (FIXME: can that ever actually happen?) don't add this file. */ | |
1517 | if (search->loaded | |
1518 | || ! search->real | |
1519 | || search->filename == (const char *) NULL) | |
1520 | return search; | |
1521 | ||
6770ec8c NC |
1522 | if (! load_symbols (search, (lang_statement_list_type *) NULL)) |
1523 | return NULL; | |
252b5132 RH |
1524 | |
1525 | return search; | |
1526 | } | |
1527 | ||
1528 | /* Get the symbols for an input file. */ | |
1529 | ||
b34976b6 | 1530 | static bfd_boolean |
252b5132 RH |
1531 | load_symbols (entry, place) |
1532 | lang_input_statement_type *entry; | |
1533 | lang_statement_list_type *place; | |
1534 | { | |
1535 | char **matching; | |
1536 | ||
1537 | if (entry->loaded) | |
b34976b6 | 1538 | return TRUE; |
252b5132 RH |
1539 | |
1540 | ldfile_open_file (entry); | |
1541 | ||
1542 | if (! bfd_check_format (entry->the_bfd, bfd_archive) | |
1543 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
1544 | { | |
1545 | bfd_error_type err; | |
1546 | lang_statement_list_type *hold; | |
b34976b6 | 1547 | bfd_boolean bad_load = TRUE; |
e3f2db7f | 1548 | bfd_boolean save_ldlang_sysrooted_script; |
b7a26f91 | 1549 | |
252b5132 | 1550 | err = bfd_get_error (); |
884fb58e NC |
1551 | |
1552 | /* See if the emulation has some special knowledge. */ | |
1553 | if (ldemul_unrecognized_file (entry)) | |
b34976b6 | 1554 | return TRUE; |
884fb58e | 1555 | |
252b5132 RH |
1556 | if (err == bfd_error_file_ambiguously_recognized) |
1557 | { | |
1558 | char **p; | |
1559 | ||
1560 | einfo (_("%B: file not recognized: %E\n"), entry->the_bfd); | |
1561 | einfo (_("%B: matching formats:"), entry->the_bfd); | |
1562 | for (p = matching; *p != NULL; p++) | |
1563 | einfo (" %s", *p); | |
1564 | einfo ("%F\n"); | |
1565 | } | |
1566 | else if (err != bfd_error_file_not_recognized | |
1567 | || place == NULL) | |
6770ec8c NC |
1568 | einfo (_("%F%B: file not recognized: %E\n"), entry->the_bfd); |
1569 | else | |
b34976b6 | 1570 | bad_load = FALSE; |
b7a26f91 | 1571 | |
252b5132 RH |
1572 | bfd_close (entry->the_bfd); |
1573 | entry->the_bfd = NULL; | |
1574 | ||
252b5132 | 1575 | /* Try to interpret the file as a linker script. */ |
252b5132 RH |
1576 | ldfile_open_command_file (entry->filename); |
1577 | ||
1578 | hold = stat_ptr; | |
1579 | stat_ptr = place; | |
e3f2db7f AO |
1580 | save_ldlang_sysrooted_script = ldlang_sysrooted_script; |
1581 | ldlang_sysrooted_script = entry->sysrooted; | |
252b5132 | 1582 | |
b34976b6 | 1583 | ldfile_assumed_script = TRUE; |
252b5132 RH |
1584 | parser_input = input_script; |
1585 | yyparse (); | |
b34976b6 | 1586 | ldfile_assumed_script = FALSE; |
252b5132 | 1587 | |
e3f2db7f | 1588 | ldlang_sysrooted_script = save_ldlang_sysrooted_script; |
252b5132 RH |
1589 | stat_ptr = hold; |
1590 | ||
6770ec8c | 1591 | return ! bad_load; |
252b5132 RH |
1592 | } |
1593 | ||
1594 | if (ldemul_recognized_file (entry)) | |
b34976b6 | 1595 | return TRUE; |
252b5132 RH |
1596 | |
1597 | /* We don't call ldlang_add_file for an archive. Instead, the | |
1598 | add_symbols entry point will call ldlang_add_file, via the | |
1599 | add_archive_element callback, for each element of the archive | |
1600 | which is used. */ | |
1601 | switch (bfd_get_format (entry->the_bfd)) | |
1602 | { | |
1603 | default: | |
1604 | break; | |
1605 | ||
1606 | case bfd_object: | |
1607 | ldlang_add_file (entry); | |
1608 | if (trace_files || trace_file_tries) | |
1609 | info_msg ("%I\n", entry); | |
1610 | break; | |
1611 | ||
1612 | case bfd_archive: | |
1613 | if (entry->whole_archive) | |
1614 | { | |
b7a26f91 | 1615 | bfd *member = NULL; |
b34976b6 | 1616 | bfd_boolean loaded = TRUE; |
6770ec8c NC |
1617 | |
1618 | for (;;) | |
252b5132 | 1619 | { |
6770ec8c NC |
1620 | member = bfd_openr_next_archived_file (entry->the_bfd, member); |
1621 | ||
1622 | if (member == NULL) | |
1623 | break; | |
b7a26f91 | 1624 | |
252b5132 | 1625 | if (! bfd_check_format (member, bfd_object)) |
6770ec8c NC |
1626 | { |
1627 | einfo (_("%F%B: member %B in archive is not an object\n"), | |
1628 | entry->the_bfd, member); | |
b34976b6 | 1629 | loaded = FALSE; |
6770ec8c NC |
1630 | } |
1631 | ||
252b5132 RH |
1632 | if (! ((*link_info.callbacks->add_archive_element) |
1633 | (&link_info, member, "--whole-archive"))) | |
1634 | abort (); | |
6770ec8c | 1635 | |
252b5132 | 1636 | if (! bfd_link_add_symbols (member, &link_info)) |
6770ec8c NC |
1637 | { |
1638 | einfo (_("%F%B: could not read symbols: %E\n"), member); | |
b34976b6 | 1639 | loaded = FALSE; |
6770ec8c | 1640 | } |
252b5132 RH |
1641 | } |
1642 | ||
6770ec8c NC |
1643 | entry->loaded = loaded; |
1644 | return loaded; | |
252b5132 | 1645 | } |
6770ec8c | 1646 | break; |
252b5132 RH |
1647 | } |
1648 | ||
03bdc404 | 1649 | if (bfd_link_add_symbols (entry->the_bfd, &link_info)) |
b34976b6 | 1650 | entry->loaded = TRUE; |
6770ec8c | 1651 | else |
252b5132 RH |
1652 | einfo (_("%F%B: could not read symbols: %E\n"), entry->the_bfd); |
1653 | ||
6770ec8c | 1654 | return entry->loaded; |
252b5132 RH |
1655 | } |
1656 | ||
b6bf44ba AM |
1657 | /* Handle a wild statement. S->FILENAME or S->SECTION_LIST or both |
1658 | may be NULL, indicating that it is a wildcard. Separate | |
1659 | lang_input_section statements are created for each part of the | |
1660 | expansion; they are added after the wild statement S. OUTPUT is | |
1661 | the output section. */ | |
252b5132 RH |
1662 | |
1663 | static void | |
b6bf44ba | 1664 | wild (s, target, output) |
252b5132 | 1665 | lang_wild_statement_type *s; |
87f2a346 | 1666 | const char *target ATTRIBUTE_UNUSED; |
252b5132 RH |
1667 | lang_output_section_statement_type *output; |
1668 | { | |
b6bf44ba | 1669 | struct wildcard_list *sec; |
252b5132 | 1670 | |
b6bf44ba AM |
1671 | walk_wild (s, output_section_callback, (PTR) output); |
1672 | ||
1673 | for (sec = s->section_list; sec != NULL; sec = sec->next) | |
252b5132 | 1674 | { |
b6bf44ba AM |
1675 | if (default_common_section != NULL) |
1676 | break; | |
1677 | if (sec->spec.name != NULL && strcmp (sec->spec.name, "COMMON") == 0) | |
1678 | { | |
1679 | /* Remember the section that common is going to in case we | |
b7a26f91 | 1680 | later get something which doesn't know where to put it. */ |
b6bf44ba AM |
1681 | default_common_section = output; |
1682 | } | |
252b5132 RH |
1683 | } |
1684 | } | |
1685 | ||
b34976b6 | 1686 | /* Return TRUE iff target is the sought target. */ |
08da4cac | 1687 | |
e50d8076 NC |
1688 | static int |
1689 | get_target (target, data) | |
08da4cac | 1690 | const bfd_target *target; |
5f992e62 | 1691 | PTR data; |
e50d8076 | 1692 | { |
08da4cac | 1693 | const char *sought = (const char *) data; |
5f992e62 | 1694 | |
e50d8076 NC |
1695 | return strcmp (target->name, sought) == 0; |
1696 | } | |
1697 | ||
1698 | /* Like strcpy() but convert to lower case as well. */ | |
08da4cac | 1699 | |
e50d8076 NC |
1700 | static void |
1701 | stricpy (dest, src) | |
08da4cac KH |
1702 | char *dest; |
1703 | char *src; | |
e50d8076 NC |
1704 | { |
1705 | char c; | |
5f992e62 | 1706 | |
08da4cac | 1707 | while ((c = *src++) != 0) |
3882b010 | 1708 | *dest++ = TOLOWER (c); |
e50d8076 | 1709 | |
08da4cac | 1710 | *dest = 0; |
e50d8076 NC |
1711 | } |
1712 | ||
396a2467 | 1713 | /* Remove the first occurrence of needle (if any) in haystack |
e50d8076 | 1714 | from haystack. */ |
08da4cac | 1715 | |
e50d8076 NC |
1716 | static void |
1717 | strcut (haystack, needle) | |
08da4cac KH |
1718 | char *haystack; |
1719 | char *needle; | |
e50d8076 NC |
1720 | { |
1721 | haystack = strstr (haystack, needle); | |
5f992e62 | 1722 | |
e50d8076 NC |
1723 | if (haystack) |
1724 | { | |
08da4cac | 1725 | char *src; |
e50d8076 | 1726 | |
08da4cac KH |
1727 | for (src = haystack + strlen (needle); *src;) |
1728 | *haystack++ = *src++; | |
5f992e62 | 1729 | |
08da4cac | 1730 | *haystack = 0; |
e50d8076 NC |
1731 | } |
1732 | } | |
1733 | ||
1734 | /* Compare two target format name strings. | |
1735 | Return a value indicating how "similar" they are. */ | |
08da4cac | 1736 | |
e50d8076 NC |
1737 | static int |
1738 | name_compare (first, second) | |
08da4cac KH |
1739 | char *first; |
1740 | char *second; | |
e50d8076 | 1741 | { |
08da4cac KH |
1742 | char *copy1; |
1743 | char *copy2; | |
1744 | int result; | |
5f992e62 | 1745 | |
e50d8076 NC |
1746 | copy1 = xmalloc (strlen (first) + 1); |
1747 | copy2 = xmalloc (strlen (second) + 1); | |
1748 | ||
1749 | /* Convert the names to lower case. */ | |
1750 | stricpy (copy1, first); | |
1751 | stricpy (copy2, second); | |
1752 | ||
1753 | /* Remove and endian strings from the name. */ | |
1754 | strcut (copy1, "big"); | |
1755 | strcut (copy1, "little"); | |
1756 | strcut (copy2, "big"); | |
1757 | strcut (copy2, "little"); | |
1758 | ||
1759 | /* Return a value based on how many characters match, | |
1760 | starting from the beginning. If both strings are | |
1761 | the same then return 10 * their length. */ | |
08da4cac KH |
1762 | for (result = 0; copy1[result] == copy2[result]; result++) |
1763 | if (copy1[result] == 0) | |
e50d8076 NC |
1764 | { |
1765 | result *= 10; | |
1766 | break; | |
1767 | } | |
5f992e62 | 1768 | |
e50d8076 NC |
1769 | free (copy1); |
1770 | free (copy2); | |
1771 | ||
1772 | return result; | |
1773 | } | |
1774 | ||
1775 | /* Set by closest_target_match() below. */ | |
08da4cac | 1776 | static const bfd_target *winner; |
e50d8076 NC |
1777 | |
1778 | /* Scan all the valid bfd targets looking for one that has the endianness | |
1779 | requirement that was specified on the command line, and is the nearest | |
1780 | match to the original output target. */ | |
08da4cac | 1781 | |
e50d8076 NC |
1782 | static int |
1783 | closest_target_match (target, data) | |
08da4cac | 1784 | const bfd_target *target; |
5f992e62 | 1785 | PTR data; |
e50d8076 | 1786 | { |
08da4cac | 1787 | const bfd_target *original = (const bfd_target *) data; |
5f992e62 | 1788 | |
08da4cac KH |
1789 | if (command_line.endian == ENDIAN_BIG |
1790 | && target->byteorder != BFD_ENDIAN_BIG) | |
e50d8076 | 1791 | return 0; |
5f992e62 | 1792 | |
08da4cac KH |
1793 | if (command_line.endian == ENDIAN_LITTLE |
1794 | && target->byteorder != BFD_ENDIAN_LITTLE) | |
e50d8076 NC |
1795 | return 0; |
1796 | ||
1797 | /* Must be the same flavour. */ | |
1798 | if (target->flavour != original->flavour) | |
1799 | return 0; | |
1800 | ||
1801 | /* If we have not found a potential winner yet, then record this one. */ | |
1802 | if (winner == NULL) | |
1803 | { | |
1804 | winner = target; | |
1805 | return 0; | |
1806 | } | |
1807 | ||
1808 | /* Oh dear, we now have two potential candidates for a successful match. | |
4de2d33d | 1809 | Compare their names and choose the better one. */ |
d1778b88 AM |
1810 | if (name_compare (target->name, original->name) |
1811 | > name_compare (winner->name, original->name)) | |
e50d8076 NC |
1812 | winner = target; |
1813 | ||
1814 | /* Keep on searching until wqe have checked them all. */ | |
1815 | return 0; | |
1816 | } | |
1817 | ||
1818 | /* Return the BFD target format of the first input file. */ | |
08da4cac | 1819 | |
e50d8076 NC |
1820 | static char * |
1821 | get_first_input_target () | |
1822 | { | |
08da4cac | 1823 | char *target = NULL; |
e50d8076 NC |
1824 | |
1825 | LANG_FOR_EACH_INPUT_STATEMENT (s) | |
1826 | { | |
1827 | if (s->header.type == lang_input_statement_enum | |
1828 | && s->real) | |
1829 | { | |
1830 | ldfile_open_file (s); | |
5f992e62 | 1831 | |
e50d8076 NC |
1832 | if (s->the_bfd != NULL |
1833 | && bfd_check_format (s->the_bfd, bfd_object)) | |
1834 | { | |
1835 | target = bfd_get_target (s->the_bfd); | |
5f992e62 | 1836 | |
e50d8076 NC |
1837 | if (target != NULL) |
1838 | break; | |
1839 | } | |
1840 | } | |
1841 | } | |
5f992e62 | 1842 | |
e50d8076 NC |
1843 | return target; |
1844 | } | |
1845 | ||
599917b8 JJ |
1846 | const char * |
1847 | lang_get_output_target () | |
1848 | { | |
1849 | const char *target; | |
1850 | ||
1851 | /* Has the user told us which output format to use? */ | |
1852 | if (output_target != (char *) NULL) | |
1853 | return output_target; | |
1854 | ||
1855 | /* No - has the current target been set to something other than | |
1856 | the default? */ | |
1857 | if (current_target != default_target) | |
1858 | return current_target; | |
1859 | ||
1860 | /* No - can we determine the format of the first input file? */ | |
1861 | target = get_first_input_target (); | |
1862 | if (target != NULL) | |
1863 | return target; | |
1864 | ||
1865 | /* Failed - use the default output target. */ | |
1866 | return default_target; | |
1867 | } | |
1868 | ||
252b5132 RH |
1869 | /* Open the output file. */ |
1870 | ||
1871 | static bfd * | |
1872 | open_output (name) | |
08da4cac | 1873 | const char *name; |
252b5132 | 1874 | { |
08da4cac | 1875 | bfd *output; |
252b5132 | 1876 | |
599917b8 | 1877 | output_target = lang_get_output_target (); |
5f992e62 | 1878 | |
08da4cac KH |
1879 | /* Has the user requested a particular endianness on the command |
1880 | line? */ | |
e50d8076 NC |
1881 | if (command_line.endian != ENDIAN_UNSET) |
1882 | { | |
08da4cac | 1883 | const bfd_target *target; |
1b69a0bf | 1884 | enum bfd_endian desired_endian; |
e50d8076 NC |
1885 | |
1886 | /* Get the chosen target. */ | |
5f992e62 | 1887 | target = bfd_search_for_target (get_target, (PTR) output_target); |
e50d8076 | 1888 | |
c13b1b77 NC |
1889 | /* If the target is not supported, we cannot do anything. */ |
1890 | if (target != NULL) | |
e50d8076 | 1891 | { |
c13b1b77 NC |
1892 | if (command_line.endian == ENDIAN_BIG) |
1893 | desired_endian = BFD_ENDIAN_BIG; | |
e50d8076 | 1894 | else |
c13b1b77 | 1895 | desired_endian = BFD_ENDIAN_LITTLE; |
5f992e62 AM |
1896 | |
1897 | /* See if the target has the wrong endianness. This should | |
1898 | not happen if the linker script has provided big and | |
1899 | little endian alternatives, but some scrips don't do | |
1900 | this. */ | |
c13b1b77 | 1901 | if (target->byteorder != desired_endian) |
e50d8076 | 1902 | { |
c13b1b77 NC |
1903 | /* If it does, then see if the target provides |
1904 | an alternative with the correct endianness. */ | |
1905 | if (target->alternative_target != NULL | |
1906 | && (target->alternative_target->byteorder == desired_endian)) | |
1907 | output_target = target->alternative_target->name; | |
e50d8076 | 1908 | else |
c13b1b77 | 1909 | { |
5f992e62 AM |
1910 | /* Try to find a target as similar as possible to |
1911 | the default target, but which has the desired | |
1912 | endian characteristic. */ | |
d1778b88 AM |
1913 | (void) bfd_search_for_target (closest_target_match, |
1914 | (PTR) target); | |
5f992e62 AM |
1915 | |
1916 | /* Oh dear - we could not find any targets that | |
1917 | satisfy our requirements. */ | |
c13b1b77 NC |
1918 | if (winner == NULL) |
1919 | einfo (_("%P: warning: could not find any targets that match endianness requirement\n")); | |
1920 | else | |
1921 | output_target = winner->name; | |
1922 | } | |
e50d8076 NC |
1923 | } |
1924 | } | |
252b5132 | 1925 | } |
5f992e62 | 1926 | |
252b5132 RH |
1927 | output = bfd_openw (name, output_target); |
1928 | ||
1929 | if (output == (bfd *) NULL) | |
1930 | { | |
1931 | if (bfd_get_error () == bfd_error_invalid_target) | |
e50d8076 NC |
1932 | einfo (_("%P%F: target %s not found\n"), output_target); |
1933 | ||
252b5132 RH |
1934 | einfo (_("%P%F: cannot open output file %s: %E\n"), name); |
1935 | } | |
1936 | ||
b34976b6 | 1937 | delete_output_file_on_failure = TRUE; |
252b5132 | 1938 | |
08da4cac KH |
1939 | #if 0 |
1940 | output->flags |= D_PAGED; | |
1941 | #endif | |
252b5132 RH |
1942 | |
1943 | if (! bfd_set_format (output, bfd_object)) | |
1944 | einfo (_("%P%F:%s: can not make object file: %E\n"), name); | |
1945 | if (! bfd_set_arch_mach (output, | |
1946 | ldfile_output_architecture, | |
1947 | ldfile_output_machine)) | |
1948 | einfo (_("%P%F:%s: can not set architecture: %E\n"), name); | |
1949 | ||
1950 | link_info.hash = bfd_link_hash_table_create (output); | |
1951 | if (link_info.hash == (struct bfd_link_hash_table *) NULL) | |
1952 | einfo (_("%P%F: can not create link hash table: %E\n")); | |
1953 | ||
1954 | bfd_set_gp_size (output, g_switch_value); | |
1955 | return output; | |
1956 | } | |
1957 | ||
252b5132 RH |
1958 | static void |
1959 | ldlang_open_output (statement) | |
08da4cac | 1960 | lang_statement_union_type *statement; |
252b5132 RH |
1961 | { |
1962 | switch (statement->header.type) | |
1963 | { | |
1964 | case lang_output_statement_enum: | |
1965 | ASSERT (output_bfd == (bfd *) NULL); | |
1966 | output_bfd = open_output (statement->output_statement.name); | |
1967 | ldemul_set_output_arch (); | |
1968 | if (config.magic_demand_paged && !link_info.relocateable) | |
1969 | output_bfd->flags |= D_PAGED; | |
1970 | else | |
1971 | output_bfd->flags &= ~D_PAGED; | |
1972 | if (config.text_read_only) | |
1973 | output_bfd->flags |= WP_TEXT; | |
1974 | else | |
1975 | output_bfd->flags &= ~WP_TEXT; | |
1976 | if (link_info.traditional_format) | |
1977 | output_bfd->flags |= BFD_TRADITIONAL_FORMAT; | |
1978 | else | |
1979 | output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; | |
1980 | break; | |
1981 | ||
1982 | case lang_target_statement_enum: | |
1983 | current_target = statement->target_statement.target; | |
1984 | break; | |
1985 | default: | |
1986 | break; | |
1987 | } | |
1988 | } | |
1989 | ||
1990 | /* Open all the input files. */ | |
1991 | ||
1992 | static void | |
1993 | open_input_bfds (s, force) | |
1994 | lang_statement_union_type *s; | |
b34976b6 | 1995 | bfd_boolean force; |
252b5132 | 1996 | { |
bba1a0c0 | 1997 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
1998 | { |
1999 | switch (s->header.type) | |
2000 | { | |
2001 | case lang_constructors_statement_enum: | |
2002 | open_input_bfds (constructor_list.head, force); | |
2003 | break; | |
2004 | case lang_output_section_statement_enum: | |
2005 | open_input_bfds (s->output_section_statement.children.head, force); | |
2006 | break; | |
2007 | case lang_wild_statement_enum: | |
08da4cac | 2008 | /* Maybe we should load the file's symbols. */ |
252b5132 RH |
2009 | if (s->wild_statement.filename |
2010 | && ! wildcardp (s->wild_statement.filename)) | |
2011 | (void) lookup_name (s->wild_statement.filename); | |
2012 | open_input_bfds (s->wild_statement.children.head, force); | |
2013 | break; | |
2014 | case lang_group_statement_enum: | |
2015 | { | |
2016 | struct bfd_link_hash_entry *undefs; | |
2017 | ||
2018 | /* We must continually search the entries in the group | |
08da4cac KH |
2019 | until no new symbols are added to the list of undefined |
2020 | symbols. */ | |
252b5132 RH |
2021 | |
2022 | do | |
2023 | { | |
2024 | undefs = link_info.hash->undefs_tail; | |
b34976b6 | 2025 | open_input_bfds (s->group_statement.children.head, TRUE); |
252b5132 RH |
2026 | } |
2027 | while (undefs != link_info.hash->undefs_tail); | |
2028 | } | |
2029 | break; | |
2030 | case lang_target_statement_enum: | |
2031 | current_target = s->target_statement.target; | |
2032 | break; | |
2033 | case lang_input_statement_enum: | |
e50d8076 | 2034 | if (s->input_statement.real) |
252b5132 RH |
2035 | { |
2036 | lang_statement_list_type add; | |
2037 | ||
2038 | s->input_statement.target = current_target; | |
2039 | ||
2040 | /* If we are being called from within a group, and this | |
2041 | is an archive which has already been searched, then | |
cd4c806a L |
2042 | force it to be researched unless the whole archive |
2043 | has been loaded already. */ | |
252b5132 | 2044 | if (force |
cd4c806a | 2045 | && !s->input_statement.whole_archive |
252b5132 RH |
2046 | && s->input_statement.loaded |
2047 | && bfd_check_format (s->input_statement.the_bfd, | |
2048 | bfd_archive)) | |
b34976b6 | 2049 | s->input_statement.loaded = FALSE; |
252b5132 | 2050 | |
d1778b88 | 2051 | lang_list_init (&add); |
1276aefa | 2052 | |
6770ec8c | 2053 | if (! load_symbols (&s->input_statement, &add)) |
b34976b6 | 2054 | config.make_executable = FALSE; |
252b5132 RH |
2055 | |
2056 | if (add.head != NULL) | |
2057 | { | |
bba1a0c0 AM |
2058 | *add.tail = s->header.next; |
2059 | s->header.next = add.head; | |
252b5132 RH |
2060 | } |
2061 | } | |
2062 | break; | |
2063 | default: | |
2064 | break; | |
2065 | } | |
2066 | } | |
2067 | } | |
2068 | ||
08da4cac KH |
2069 | /* If there are [COMMONS] statements, put a wild one into the bss |
2070 | section. */ | |
252b5132 RH |
2071 | |
2072 | static void | |
2073 | lang_reasonable_defaults () | |
2074 | { | |
2075 | #if 0 | |
2076 | lang_output_section_statement_lookup (".text"); | |
2077 | lang_output_section_statement_lookup (".data"); | |
2078 | ||
08da4cac | 2079 | default_common_section = lang_output_section_statement_lookup (".bss"); |
252b5132 | 2080 | |
7c519c12 | 2081 | if (!placed_commons) |
252b5132 RH |
2082 | { |
2083 | lang_wild_statement_type *new = | |
2084 | new_stat (lang_wild_statement, | |
2085 | &default_common_section->children); | |
2086 | ||
2087 | new->section_name = "COMMON"; | |
2088 | new->filename = (char *) NULL; | |
2089 | lang_list_init (&new->children); | |
2090 | } | |
2091 | #endif | |
252b5132 RH |
2092 | } |
2093 | ||
08da4cac | 2094 | /* Add the supplied name to the symbol table as an undefined reference. |
fcf0e35b AM |
2095 | This is a two step process as the symbol table doesn't even exist at |
2096 | the time the ld command line is processed. First we put the name | |
2097 | on a list, then, once the output file has been opened, transfer the | |
2098 | name to the symbol table. */ | |
2099 | ||
e3e942e9 | 2100 | typedef struct bfd_sym_chain ldlang_undef_chain_list_type; |
252b5132 | 2101 | |
e3e942e9 | 2102 | #define ldlang_undef_chain_list_head entry_symbol.next |
252b5132 RH |
2103 | |
2104 | void | |
2105 | ldlang_add_undef (name) | |
5f992e62 | 2106 | const char *const name; |
252b5132 RH |
2107 | { |
2108 | ldlang_undef_chain_list_type *new = | |
2109 | ((ldlang_undef_chain_list_type *) | |
2110 | stat_alloc (sizeof (ldlang_undef_chain_list_type))); | |
2111 | ||
2112 | new->next = ldlang_undef_chain_list_head; | |
2113 | ldlang_undef_chain_list_head = new; | |
2114 | ||
d1b2b2dc | 2115 | new->name = xstrdup (name); |
fcf0e35b AM |
2116 | |
2117 | if (output_bfd != NULL) | |
2118 | insert_undefined (new->name); | |
2119 | } | |
2120 | ||
2121 | /* Insert NAME as undefined in the symbol table. */ | |
2122 | ||
2123 | static void | |
2124 | insert_undefined (name) | |
2125 | const char *name; | |
2126 | { | |
2127 | struct bfd_link_hash_entry *h; | |
2128 | ||
b34976b6 | 2129 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, FALSE, TRUE); |
fcf0e35b AM |
2130 | if (h == (struct bfd_link_hash_entry *) NULL) |
2131 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
2132 | if (h->type == bfd_link_hash_new) | |
2133 | { | |
2134 | h->type = bfd_link_hash_undefined; | |
2135 | h->u.undef.abfd = NULL; | |
2136 | bfd_link_add_undef (link_info.hash, h); | |
2137 | } | |
252b5132 RH |
2138 | } |
2139 | ||
2140 | /* Run through the list of undefineds created above and place them | |
2141 | into the linker hash table as undefined symbols belonging to the | |
08da4cac KH |
2142 | script file. */ |
2143 | ||
252b5132 RH |
2144 | static void |
2145 | lang_place_undefineds () | |
2146 | { | |
2147 | ldlang_undef_chain_list_type *ptr; | |
2148 | ||
2149 | for (ptr = ldlang_undef_chain_list_head; | |
2150 | ptr != (ldlang_undef_chain_list_type *) NULL; | |
2151 | ptr = ptr->next) | |
2152 | { | |
fcf0e35b | 2153 | insert_undefined (ptr->name); |
252b5132 RH |
2154 | } |
2155 | } | |
2156 | ||
396a2467 | 2157 | /* Open input files and attach to output sections. */ |
08da4cac | 2158 | |
252b5132 RH |
2159 | static void |
2160 | map_input_to_output_sections (s, target, output_section_statement) | |
08da4cac | 2161 | lang_statement_union_type *s; |
5f992e62 | 2162 | const char *target; |
08da4cac | 2163 | lang_output_section_statement_type *output_section_statement; |
252b5132 | 2164 | { |
bba1a0c0 | 2165 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
2166 | { |
2167 | switch (s->header.type) | |
2168 | { | |
252b5132 | 2169 | case lang_wild_statement_enum: |
b6bf44ba | 2170 | wild (&s->wild_statement, target, output_section_statement); |
abc6ab0a | 2171 | break; |
252b5132 RH |
2172 | case lang_constructors_statement_enum: |
2173 | map_input_to_output_sections (constructor_list.head, | |
2174 | target, | |
2175 | output_section_statement); | |
2176 | break; | |
2177 | case lang_output_section_statement_enum: | |
2178 | map_input_to_output_sections (s->output_section_statement.children.head, | |
2179 | target, | |
2180 | &s->output_section_statement); | |
2181 | break; | |
2182 | case lang_output_statement_enum: | |
2183 | break; | |
2184 | case lang_target_statement_enum: | |
2185 | target = s->target_statement.target; | |
2186 | break; | |
2187 | case lang_group_statement_enum: | |
2188 | map_input_to_output_sections (s->group_statement.children.head, | |
2189 | target, | |
2190 | output_section_statement); | |
2191 | break; | |
2192 | case lang_fill_statement_enum: | |
2193 | case lang_input_section_enum: | |
2194 | case lang_object_symbols_statement_enum: | |
2195 | case lang_data_statement_enum: | |
2196 | case lang_reloc_statement_enum: | |
2197 | case lang_padding_statement_enum: | |
2198 | case lang_input_statement_enum: | |
2199 | if (output_section_statement != NULL | |
2200 | && output_section_statement->bfd_section == NULL) | |
2201 | init_os (output_section_statement); | |
2202 | break; | |
2203 | case lang_assignment_statement_enum: | |
2204 | if (output_section_statement != NULL | |
2205 | && output_section_statement->bfd_section == NULL) | |
2206 | init_os (output_section_statement); | |
2207 | ||
2208 | /* Make sure that any sections mentioned in the assignment | |
08da4cac | 2209 | are initialized. */ |
252b5132 RH |
2210 | exp_init_os (s->assignment_statement.exp); |
2211 | break; | |
2212 | case lang_afile_asection_pair_statement_enum: | |
2213 | FAIL (); | |
2214 | break; | |
2215 | case lang_address_statement_enum: | |
08da4cac | 2216 | /* Mark the specified section with the supplied address. */ |
252b5132 RH |
2217 | { |
2218 | lang_output_section_statement_type *os = | |
2219 | lang_output_section_statement_lookup | |
2220 | (s->address_statement.section_name); | |
2221 | ||
2222 | if (os->bfd_section == NULL) | |
2223 | init_os (os); | |
2224 | os->addr_tree = s->address_statement.address; | |
2225 | } | |
2226 | break; | |
2227 | } | |
2228 | } | |
2229 | } | |
2230 | ||
4bd5a393 AM |
2231 | /* An output section might have been removed after its statement was |
2232 | added. For example, ldemul_before_allocation can remove dynamic | |
2233 | sections if they turn out to be not needed. Clean them up here. */ | |
2234 | ||
2235 | static void | |
2236 | strip_excluded_output_sections () | |
2237 | { | |
2238 | lang_statement_union_type *u; | |
2239 | ||
2240 | for (u = lang_output_section_statement.head; | |
2241 | u != NULL; | |
2242 | u = u->output_section_statement.next) | |
2243 | { | |
2244 | lang_output_section_statement_type *os; | |
2245 | asection *s; | |
2246 | ||
2247 | os = &u->output_section_statement; | |
2248 | s = os->bfd_section; | |
2249 | if (s != NULL && (s->flags & SEC_EXCLUDE) != 0) | |
2250 | { | |
2251 | asection **p; | |
2252 | ||
2253 | os->bfd_section = NULL; | |
2254 | ||
2255 | for (p = &output_bfd->sections; *p; p = &(*p)->next) | |
2256 | if (*p == s) | |
2257 | { | |
2258 | bfd_section_list_remove (output_bfd, p); | |
2259 | output_bfd->section_count--; | |
2260 | break; | |
2261 | } | |
2262 | } | |
2263 | } | |
2264 | } | |
2265 | ||
252b5132 RH |
2266 | static void |
2267 | print_output_section_statement (output_section_statement) | |
08da4cac | 2268 | lang_output_section_statement_type *output_section_statement; |
252b5132 RH |
2269 | { |
2270 | asection *section = output_section_statement->bfd_section; | |
2271 | int len; | |
2272 | ||
2273 | if (output_section_statement != abs_output_section) | |
2274 | { | |
2275 | minfo ("\n%s", output_section_statement->name); | |
2276 | ||
2277 | if (section != NULL) | |
2278 | { | |
2279 | print_dot = section->vma; | |
2280 | ||
2281 | len = strlen (output_section_statement->name); | |
2282 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
2283 | { | |
2284 | print_nl (); | |
2285 | len = 0; | |
2286 | } | |
2287 | while (len < SECTION_NAME_MAP_LENGTH) | |
2288 | { | |
2289 | print_space (); | |
2290 | ++len; | |
2291 | } | |
2292 | ||
2293 | minfo ("0x%V %W", section->vma, section->_raw_size); | |
2294 | ||
2295 | if (output_section_statement->load_base != NULL) | |
2296 | { | |
2297 | bfd_vma addr; | |
2298 | ||
2299 | addr = exp_get_abs_int (output_section_statement->load_base, 0, | |
2300 | "load base", lang_final_phase_enum); | |
2301 | minfo (_(" load address 0x%V"), addr); | |
2302 | } | |
2303 | } | |
2304 | ||
2305 | print_nl (); | |
2306 | } | |
2307 | ||
2308 | print_statement_list (output_section_statement->children.head, | |
2309 | output_section_statement); | |
2310 | } | |
2311 | ||
2312 | static void | |
2313 | print_assignment (assignment, output_section) | |
08da4cac KH |
2314 | lang_assignment_statement_type *assignment; |
2315 | lang_output_section_statement_type *output_section; | |
252b5132 RH |
2316 | { |
2317 | int i; | |
2318 | etree_value_type result; | |
2319 | ||
2320 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2321 | print_space (); | |
2322 | ||
2323 | result = exp_fold_tree (assignment->exp->assign.src, output_section, | |
2324 | lang_final_phase_enum, print_dot, &print_dot); | |
2325 | if (result.valid_p) | |
7b17f854 RS |
2326 | { |
2327 | const char *dst; | |
2328 | bfd_vma value; | |
2329 | ||
2330 | value = result.value + result.section->bfd_section->vma; | |
2331 | dst = assignment->exp->assign.dst; | |
2332 | ||
2333 | minfo ("0x%V", value); | |
2334 | if (dst[0] == '.' && dst[1] == 0) | |
2335 | print_dot = value; | |
2336 | } | |
252b5132 RH |
2337 | else |
2338 | { | |
2339 | minfo ("*undef* "); | |
2340 | #ifdef BFD64 | |
2341 | minfo (" "); | |
2342 | #endif | |
2343 | } | |
2344 | ||
2345 | minfo (" "); | |
2346 | ||
2347 | exp_print_tree (assignment->exp); | |
2348 | ||
2349 | print_nl (); | |
2350 | } | |
2351 | ||
2352 | static void | |
2353 | print_input_statement (statm) | |
08da4cac | 2354 | lang_input_statement_type *statm; |
252b5132 RH |
2355 | { |
2356 | if (statm->filename != (char *) NULL) | |
2357 | { | |
2358 | fprintf (config.map_file, "LOAD %s\n", statm->filename); | |
2359 | } | |
2360 | } | |
2361 | ||
2362 | /* Print all symbols defined in a particular section. This is called | |
2363 | via bfd_link_hash_traverse. */ | |
2364 | ||
b34976b6 | 2365 | static bfd_boolean |
252b5132 RH |
2366 | print_one_symbol (hash_entry, ptr) |
2367 | struct bfd_link_hash_entry *hash_entry; | |
2368 | PTR ptr; | |
2369 | { | |
2370 | asection *sec = (asection *) ptr; | |
2371 | ||
2372 | if ((hash_entry->type == bfd_link_hash_defined | |
2373 | || hash_entry->type == bfd_link_hash_defweak) | |
2374 | && sec == hash_entry->u.def.section) | |
2375 | { | |
2376 | int i; | |
2377 | ||
2378 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2379 | print_space (); | |
2380 | minfo ("0x%V ", | |
2381 | (hash_entry->u.def.value | |
2382 | + hash_entry->u.def.section->output_offset | |
2383 | + hash_entry->u.def.section->output_section->vma)); | |
2384 | ||
2385 | minfo (" %T\n", hash_entry->root.string); | |
2386 | } | |
2387 | ||
b34976b6 | 2388 | return TRUE; |
252b5132 RH |
2389 | } |
2390 | ||
2391 | /* Print information about an input section to the map file. */ | |
2392 | ||
2393 | static void | |
2394 | print_input_section (in) | |
08da4cac | 2395 | lang_input_section_type *in; |
252b5132 RH |
2396 | { |
2397 | asection *i = in->section; | |
2398 | bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size; | |
5f992e62 | 2399 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
f6af82bd | 2400 | ldfile_output_machine); |
252b5132 RH |
2401 | if (size != 0) |
2402 | { | |
2403 | print_space (); | |
2404 | ||
2405 | minfo ("%s", i->name); | |
2406 | ||
2407 | if (i->output_section != NULL) | |
2408 | { | |
2409 | int len; | |
2410 | ||
2411 | len = 1 + strlen (i->name); | |
2412 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
2413 | { | |
2414 | print_nl (); | |
2415 | len = 0; | |
2416 | } | |
2417 | while (len < SECTION_NAME_MAP_LENGTH) | |
2418 | { | |
2419 | print_space (); | |
2420 | ++len; | |
2421 | } | |
2422 | ||
2423 | minfo ("0x%V %W %B\n", | |
4cbfc3ac | 2424 | i->output_section->vma + i->output_offset, size / opb, |
252b5132 RH |
2425 | i->owner); |
2426 | ||
2427 | if (i->_cooked_size != 0 && i->_cooked_size != i->_raw_size) | |
2428 | { | |
2429 | len = SECTION_NAME_MAP_LENGTH + 3; | |
2430 | #ifdef BFD64 | |
2431 | len += 16; | |
2432 | #else | |
2433 | len += 8; | |
2434 | #endif | |
2435 | while (len > 0) | |
2436 | { | |
2437 | print_space (); | |
2438 | --len; | |
2439 | } | |
2440 | ||
2441 | minfo (_("%W (size before relaxing)\n"), i->_raw_size); | |
2442 | } | |
2443 | ||
2444 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i); | |
2445 | ||
4cbfc3ac | 2446 | print_dot = i->output_section->vma + i->output_offset + size / opb; |
252b5132 RH |
2447 | } |
2448 | } | |
2449 | } | |
2450 | ||
2451 | static void | |
2452 | print_fill_statement (fill) | |
08da4cac | 2453 | lang_fill_statement_type *fill; |
252b5132 | 2454 | { |
2c382fb6 AM |
2455 | size_t size; |
2456 | unsigned char *p; | |
2457 | fputs (" FILL mask 0x", config.map_file); | |
2458 | for (p = fill->fill->data, size = fill->fill->size; size != 0; p++, size--) | |
2459 | fprintf (config.map_file, "%02x", *p); | |
2460 | fputs ("\n", config.map_file); | |
252b5132 RH |
2461 | } |
2462 | ||
2463 | static void | |
2464 | print_data_statement (data) | |
08da4cac | 2465 | lang_data_statement_type *data; |
252b5132 RH |
2466 | { |
2467 | int i; | |
2468 | bfd_vma addr; | |
2469 | bfd_size_type size; | |
2470 | const char *name; | |
5f992e62 | 2471 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
f6af82bd | 2472 | ldfile_output_machine); |
252b5132 RH |
2473 | |
2474 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2475 | print_space (); | |
2476 | ||
2477 | addr = data->output_vma; | |
2478 | if (data->output_section != NULL) | |
2479 | addr += data->output_section->vma; | |
2480 | ||
2481 | switch (data->type) | |
2482 | { | |
2483 | default: | |
2484 | abort (); | |
2485 | case BYTE: | |
2486 | size = BYTE_SIZE; | |
2487 | name = "BYTE"; | |
2488 | break; | |
2489 | case SHORT: | |
2490 | size = SHORT_SIZE; | |
2491 | name = "SHORT"; | |
2492 | break; | |
2493 | case LONG: | |
2494 | size = LONG_SIZE; | |
2495 | name = "LONG"; | |
2496 | break; | |
2497 | case QUAD: | |
2498 | size = QUAD_SIZE; | |
2499 | name = "QUAD"; | |
2500 | break; | |
2501 | case SQUAD: | |
2502 | size = QUAD_SIZE; | |
2503 | name = "SQUAD"; | |
2504 | break; | |
2505 | } | |
2506 | ||
2507 | minfo ("0x%V %W %s 0x%v", addr, size, name, data->value); | |
2508 | ||
2509 | if (data->exp->type.node_class != etree_value) | |
2510 | { | |
2511 | print_space (); | |
2512 | exp_print_tree (data->exp); | |
2513 | } | |
2514 | ||
2515 | print_nl (); | |
2516 | ||
4cbfc3ac TW |
2517 | print_dot = addr + size / opb; |
2518 | ||
252b5132 RH |
2519 | } |
2520 | ||
2521 | /* Print an address statement. These are generated by options like | |
2522 | -Ttext. */ | |
2523 | ||
2524 | static void | |
2525 | print_address_statement (address) | |
2526 | lang_address_statement_type *address; | |
2527 | { | |
2528 | minfo (_("Address of section %s set to "), address->section_name); | |
2529 | exp_print_tree (address->address); | |
2530 | print_nl (); | |
2531 | } | |
2532 | ||
2533 | /* Print a reloc statement. */ | |
2534 | ||
2535 | static void | |
2536 | print_reloc_statement (reloc) | |
2537 | lang_reloc_statement_type *reloc; | |
2538 | { | |
2539 | int i; | |
2540 | bfd_vma addr; | |
2541 | bfd_size_type size; | |
5f992e62 AM |
2542 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
2543 | ldfile_output_machine); | |
252b5132 RH |
2544 | |
2545 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
2546 | print_space (); | |
2547 | ||
2548 | addr = reloc->output_vma; | |
2549 | if (reloc->output_section != NULL) | |
2550 | addr += reloc->output_section->vma; | |
2551 | ||
2552 | size = bfd_get_reloc_size (reloc->howto); | |
2553 | ||
2554 | minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name); | |
2555 | ||
2556 | if (reloc->name != NULL) | |
2557 | minfo ("%s+", reloc->name); | |
2558 | else | |
2559 | minfo ("%s+", reloc->section->name); | |
2560 | ||
2561 | exp_print_tree (reloc->addend_exp); | |
2562 | ||
2563 | print_nl (); | |
2564 | ||
4cbfc3ac | 2565 | print_dot = addr + size / opb; |
5f992e62 | 2566 | } |
252b5132 RH |
2567 | |
2568 | static void | |
2569 | print_padding_statement (s) | |
2570 | lang_padding_statement_type *s; | |
2571 | { | |
2572 | int len; | |
2573 | bfd_vma addr; | |
5f992e62 AM |
2574 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
2575 | ldfile_output_machine); | |
252b5132 RH |
2576 | |
2577 | minfo (" *fill*"); | |
2578 | ||
2579 | len = sizeof " *fill*" - 1; | |
2580 | while (len < SECTION_NAME_MAP_LENGTH) | |
2581 | { | |
2582 | print_space (); | |
2583 | ++len; | |
2584 | } | |
2585 | ||
2586 | addr = s->output_offset; | |
2587 | if (s->output_section != NULL) | |
2588 | addr += s->output_section->vma; | |
2c382fb6 | 2589 | minfo ("0x%V %W ", addr, s->size); |
252b5132 | 2590 | |
2c382fb6 AM |
2591 | if (s->fill->size != 0) |
2592 | { | |
2593 | size_t size; | |
2594 | unsigned char *p; | |
2595 | for (p = s->fill->data, size = s->fill->size; size != 0; p++, size--) | |
2596 | fprintf (config.map_file, "%02x", *p); | |
2597 | } | |
252b5132 RH |
2598 | |
2599 | print_nl (); | |
2600 | ||
4cbfc3ac | 2601 | print_dot = addr + s->size / opb; |
252b5132 RH |
2602 | } |
2603 | ||
2604 | static void | |
2605 | print_wild_statement (w, os) | |
08da4cac KH |
2606 | lang_wild_statement_type *w; |
2607 | lang_output_section_statement_type *os; | |
252b5132 | 2608 | { |
b6bf44ba AM |
2609 | struct wildcard_list *sec; |
2610 | ||
252b5132 RH |
2611 | print_space (); |
2612 | ||
2613 | if (w->filenames_sorted) | |
2614 | minfo ("SORT("); | |
08da4cac | 2615 | if (w->filename != NULL) |
252b5132 RH |
2616 | minfo ("%s", w->filename); |
2617 | else | |
2618 | minfo ("*"); | |
2619 | if (w->filenames_sorted) | |
2620 | minfo (")"); | |
2621 | ||
2622 | minfo ("("); | |
b6bf44ba AM |
2623 | for (sec = w->section_list; sec; sec = sec->next) |
2624 | { | |
2625 | if (sec->spec.sorted) | |
2626 | minfo ("SORT("); | |
2627 | if (sec->spec.exclude_name_list != NULL) | |
2628 | { | |
2629 | name_list *tmp; | |
34786259 | 2630 | minfo ("EXCLUDE_FILE(%s", sec->spec.exclude_name_list->name); |
b6bf44ba | 2631 | for (tmp = sec->spec.exclude_name_list->next; tmp; tmp = tmp->next) |
34786259 AM |
2632 | minfo (" %s", tmp->name); |
2633 | minfo (") "); | |
b6bf44ba AM |
2634 | } |
2635 | if (sec->spec.name != NULL) | |
2636 | minfo ("%s", sec->spec.name); | |
2637 | else | |
2638 | minfo ("*"); | |
2639 | if (sec->spec.sorted) | |
2640 | minfo (")"); | |
34786259 AM |
2641 | if (sec->next) |
2642 | minfo (" "); | |
b6bf44ba | 2643 | } |
252b5132 RH |
2644 | minfo (")"); |
2645 | ||
2646 | print_nl (); | |
2647 | ||
2648 | print_statement_list (w->children.head, os); | |
2649 | } | |
2650 | ||
2651 | /* Print a group statement. */ | |
2652 | ||
2653 | static void | |
2654 | print_group (s, os) | |
2655 | lang_group_statement_type *s; | |
2656 | lang_output_section_statement_type *os; | |
2657 | { | |
2658 | fprintf (config.map_file, "START GROUP\n"); | |
2659 | print_statement_list (s->children.head, os); | |
2660 | fprintf (config.map_file, "END GROUP\n"); | |
2661 | } | |
2662 | ||
2663 | /* Print the list of statements in S. | |
2664 | This can be called for any statement type. */ | |
2665 | ||
2666 | static void | |
2667 | print_statement_list (s, os) | |
2668 | lang_statement_union_type *s; | |
2669 | lang_output_section_statement_type *os; | |
2670 | { | |
2671 | while (s != NULL) | |
2672 | { | |
2673 | print_statement (s, os); | |
bba1a0c0 | 2674 | s = s->header.next; |
252b5132 RH |
2675 | } |
2676 | } | |
2677 | ||
2678 | /* Print the first statement in statement list S. | |
2679 | This can be called for any statement type. */ | |
2680 | ||
2681 | static void | |
2682 | print_statement (s, os) | |
2683 | lang_statement_union_type *s; | |
2684 | lang_output_section_statement_type *os; | |
2685 | { | |
2686 | switch (s->header.type) | |
2687 | { | |
2688 | default: | |
2689 | fprintf (config.map_file, _("Fail with %d\n"), s->header.type); | |
2690 | FAIL (); | |
2691 | break; | |
2692 | case lang_constructors_statement_enum: | |
2693 | if (constructor_list.head != NULL) | |
2694 | { | |
2695 | if (constructors_sorted) | |
2696 | minfo (" SORT (CONSTRUCTORS)\n"); | |
2697 | else | |
2698 | minfo (" CONSTRUCTORS\n"); | |
2699 | print_statement_list (constructor_list.head, os); | |
2700 | } | |
2701 | break; | |
2702 | case lang_wild_statement_enum: | |
2703 | print_wild_statement (&s->wild_statement, os); | |
2704 | break; | |
2705 | case lang_address_statement_enum: | |
2706 | print_address_statement (&s->address_statement); | |
2707 | break; | |
2708 | case lang_object_symbols_statement_enum: | |
2709 | minfo (" CREATE_OBJECT_SYMBOLS\n"); | |
2710 | break; | |
2711 | case lang_fill_statement_enum: | |
2712 | print_fill_statement (&s->fill_statement); | |
2713 | break; | |
2714 | case lang_data_statement_enum: | |
2715 | print_data_statement (&s->data_statement); | |
2716 | break; | |
2717 | case lang_reloc_statement_enum: | |
2718 | print_reloc_statement (&s->reloc_statement); | |
2719 | break; | |
2720 | case lang_input_section_enum: | |
2721 | print_input_section (&s->input_section); | |
2722 | break; | |
2723 | case lang_padding_statement_enum: | |
2724 | print_padding_statement (&s->padding_statement); | |
2725 | break; | |
2726 | case lang_output_section_statement_enum: | |
2727 | print_output_section_statement (&s->output_section_statement); | |
2728 | break; | |
2729 | case lang_assignment_statement_enum: | |
2730 | print_assignment (&s->assignment_statement, os); | |
2731 | break; | |
2732 | case lang_target_statement_enum: | |
2733 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
2734 | break; | |
2735 | case lang_output_statement_enum: | |
2736 | minfo ("OUTPUT(%s", s->output_statement.name); | |
2737 | if (output_target != NULL) | |
2738 | minfo (" %s", output_target); | |
2739 | minfo (")\n"); | |
2740 | break; | |
2741 | case lang_input_statement_enum: | |
2742 | print_input_statement (&s->input_statement); | |
2743 | break; | |
2744 | case lang_group_statement_enum: | |
2745 | print_group (&s->group_statement, os); | |
2746 | break; | |
2747 | case lang_afile_asection_pair_statement_enum: | |
2748 | FAIL (); | |
2749 | break; | |
2750 | } | |
2751 | } | |
2752 | ||
2753 | static void | |
2754 | print_statements () | |
2755 | { | |
2756 | print_statement_list (statement_list.head, abs_output_section); | |
2757 | } | |
2758 | ||
2759 | /* Print the first N statements in statement list S to STDERR. | |
2760 | If N == 0, nothing is printed. | |
2761 | If N < 0, the entire list is printed. | |
2762 | Intended to be called from GDB. */ | |
2763 | ||
2764 | void | |
2765 | dprint_statement (s, n) | |
08da4cac | 2766 | lang_statement_union_type *s; |
252b5132 RH |
2767 | int n; |
2768 | { | |
2769 | FILE *map_save = config.map_file; | |
2770 | ||
2771 | config.map_file = stderr; | |
2772 | ||
2773 | if (n < 0) | |
2774 | print_statement_list (s, abs_output_section); | |
2775 | else | |
2776 | { | |
2777 | while (s && --n >= 0) | |
2778 | { | |
2779 | print_statement (s, abs_output_section); | |
bba1a0c0 | 2780 | s = s->header.next; |
252b5132 RH |
2781 | } |
2782 | } | |
2783 | ||
2784 | config.map_file = map_save; | |
2785 | } | |
2786 | ||
b3327aad AM |
2787 | static void |
2788 | insert_pad (ptr, fill, alignment_needed, output_section, dot) | |
2789 | lang_statement_union_type **ptr; | |
2c382fb6 | 2790 | fill_type *fill; |
b3327aad AM |
2791 | unsigned int alignment_needed; |
2792 | asection *output_section; | |
252b5132 RH |
2793 | bfd_vma dot; |
2794 | { | |
2c382fb6 | 2795 | static fill_type zero_fill = { 1, { 0 } }; |
b3327aad | 2796 | lang_statement_union_type *pad; |
b3327aad | 2797 | |
c0c330a7 | 2798 | pad = ((lang_statement_union_type *) |
2af02257 | 2799 | ((char *) ptr - offsetof (lang_statement_union_type, header.next))); |
b3327aad | 2800 | if (ptr != &statement_list.head |
2af02257 | 2801 | && pad->header.type == lang_padding_statement_enum |
b3327aad | 2802 | && pad->padding_statement.output_section == output_section) |
252b5132 | 2803 | { |
b3327aad AM |
2804 | /* Use the existing pad statement. The above test on output |
2805 | section is probably redundant, but it doesn't hurt to check. */ | |
252b5132 | 2806 | } |
b3327aad | 2807 | else |
252b5132 | 2808 | { |
b3327aad AM |
2809 | /* Make a new padding statement, linked into existing chain. */ |
2810 | pad = ((lang_statement_union_type *) | |
2811 | stat_alloc (sizeof (lang_padding_statement_type))); | |
2812 | pad->header.next = *ptr; | |
2813 | *ptr = pad; | |
2814 | pad->header.type = lang_padding_statement_enum; | |
2815 | pad->padding_statement.output_section = output_section; | |
2c382fb6 AM |
2816 | if (fill == (fill_type *) 0) |
2817 | fill = &zero_fill; | |
b3327aad | 2818 | pad->padding_statement.fill = fill; |
252b5132 | 2819 | } |
b3327aad AM |
2820 | pad->padding_statement.output_offset = dot - output_section->vma; |
2821 | pad->padding_statement.size = alignment_needed; | |
2822 | output_section->_raw_size += alignment_needed; | |
252b5132 RH |
2823 | } |
2824 | ||
08da4cac KH |
2825 | /* Work out how much this section will move the dot point. */ |
2826 | ||
252b5132 | 2827 | static bfd_vma |
b3327aad | 2828 | size_input_section (this_ptr, output_section_statement, fill, dot) |
08da4cac KH |
2829 | lang_statement_union_type **this_ptr; |
2830 | lang_output_section_statement_type *output_section_statement; | |
2c382fb6 | 2831 | fill_type *fill; |
252b5132 | 2832 | bfd_vma dot; |
252b5132 RH |
2833 | { |
2834 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
2835 | asection *i = is->section; | |
2836 | ||
7c519c12 | 2837 | if (!is->ifile->just_syms_flag) |
252b5132 | 2838 | { |
b3327aad AM |
2839 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
2840 | ldfile_output_machine); | |
2841 | unsigned int alignment_needed; | |
2842 | asection *o; | |
2843 | ||
2844 | /* Align this section first to the input sections requirement, | |
2845 | then to the output section's requirement. If this alignment | |
2846 | is greater than any seen before, then record it too. Perform | |
2847 | the alignment by inserting a magic 'padding' statement. */ | |
2848 | ||
252b5132 | 2849 | if (output_section_statement->subsection_alignment != -1) |
b3327aad AM |
2850 | i->alignment_power = output_section_statement->subsection_alignment; |
2851 | ||
2852 | o = output_section_statement->bfd_section; | |
2853 | if (o->alignment_power < i->alignment_power) | |
2854 | o->alignment_power = i->alignment_power; | |
252b5132 | 2855 | |
b3327aad AM |
2856 | alignment_needed = align_power (dot, i->alignment_power) - dot; |
2857 | ||
2858 | if (alignment_needed != 0) | |
2859 | { | |
2860 | insert_pad (this_ptr, fill, alignment_needed * opb, o, dot); | |
2861 | dot += alignment_needed; | |
2862 | } | |
252b5132 | 2863 | |
08da4cac | 2864 | /* Remember where in the output section this input section goes. */ |
252b5132 | 2865 | |
b3327aad | 2866 | i->output_offset = dot - o->vma; |
252b5132 | 2867 | |
08da4cac | 2868 | /* Mark how big the output section must be to contain this now. */ |
252b5132 | 2869 | if (i->_cooked_size != 0) |
4cbfc3ac | 2870 | dot += i->_cooked_size / opb; |
252b5132 | 2871 | else |
4cbfc3ac | 2872 | dot += i->_raw_size / opb; |
b3327aad | 2873 | o->_raw_size = (dot - o->vma) * opb; |
252b5132 RH |
2874 | } |
2875 | else | |
2876 | { | |
2877 | i->output_offset = i->vma - output_section_statement->bfd_section->vma; | |
2878 | } | |
2879 | ||
2880 | return dot; | |
2881 | } | |
2882 | ||
33275c22 | 2883 | #define IGNORE_SECTION(bfd, s) \ |
d1778b88 AM |
2884 | (((bfd_get_section_flags (bfd, s) & (SEC_ALLOC | SEC_LOAD)) \ |
2885 | != (SEC_ALLOC | SEC_LOAD)) \ | |
33275c22 | 2886 | || bfd_section_size (bfd, s) == 0) |
d1778b88 | 2887 | |
252b5132 RH |
2888 | /* Check to see if any allocated sections overlap with other allocated |
2889 | sections. This can happen when the linker script specifically specifies | |
2890 | the output section addresses of the two sections. */ | |
08da4cac | 2891 | |
252b5132 RH |
2892 | static void |
2893 | lang_check_section_addresses () | |
2894 | { | |
08da4cac | 2895 | asection *s; |
f6af82bd | 2896 | unsigned opb = bfd_octets_per_byte (output_bfd); |
252b5132 RH |
2897 | |
2898 | /* Scan all sections in the output list. */ | |
2899 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
33275c22 | 2900 | { |
08da4cac | 2901 | asection *os; |
5f992e62 | 2902 | |
33275c22 NC |
2903 | /* Ignore sections which are not loaded or which have no contents. */ |
2904 | if (IGNORE_SECTION (output_bfd, s)) | |
2905 | continue; | |
5f992e62 | 2906 | |
33275c22 NC |
2907 | /* Once we reach section 's' stop our seach. This prevents two |
2908 | warning messages from being produced, one for 'section A overlaps | |
2909 | section B' and one for 'section B overlaps section A'. */ | |
2910 | for (os = output_bfd->sections; os != s; os = os->next) | |
2911 | { | |
2912 | bfd_vma s_start; | |
2913 | bfd_vma s_end; | |
2914 | bfd_vma os_start; | |
2915 | bfd_vma os_end; | |
5f992e62 | 2916 | |
33275c22 NC |
2917 | /* Only consider loadable sections with real contents. */ |
2918 | if (IGNORE_SECTION (output_bfd, os)) | |
2919 | continue; | |
252b5132 | 2920 | |
33275c22 NC |
2921 | /* We must check the sections' LMA addresses not their |
2922 | VMA addresses because overlay sections can have | |
2923 | overlapping VMAs but they must have distinct LMAs. */ | |
2924 | s_start = bfd_section_lma (output_bfd, s); | |
2925 | os_start = bfd_section_lma (output_bfd, os); | |
9e4ed18c TW |
2926 | s_end = s_start + bfd_section_size (output_bfd, s) / opb - 1; |
2927 | os_end = os_start + bfd_section_size (output_bfd, os) / opb - 1; | |
5f992e62 | 2928 | |
33275c22 NC |
2929 | /* Look for an overlap. */ |
2930 | if ((s_end < os_start) || (s_start > os_end)) | |
2931 | continue; | |
5f992e62 | 2932 | |
33275c22 | 2933 | einfo ( |
252b5132 | 2934 | _("%X%P: section %s [%V -> %V] overlaps section %s [%V -> %V]\n"), |
33275c22 | 2935 | s->name, s_start, s_end, os->name, os_start, os_end); |
5f992e62 | 2936 | |
33275c22 NC |
2937 | /* Once we have found one overlap for this section, |
2938 | stop looking for others. */ | |
2939 | break; | |
2940 | } | |
2941 | } | |
252b5132 RH |
2942 | } |
2943 | ||
562d3460 TW |
2944 | /* Make sure the new address is within the region. We explicitly permit the |
2945 | current address to be at the exact end of the region when the address is | |
2946 | non-zero, in case the region is at the end of addressable memory and the | |
5f992e62 | 2947 | calculation wraps around. */ |
562d3460 TW |
2948 | |
2949 | static void | |
2950 | os_region_check (os, region, tree, base) | |
08da4cac KH |
2951 | lang_output_section_statement_type *os; |
2952 | struct memory_region_struct *region; | |
2953 | etree_type *tree; | |
2954 | bfd_vma base; | |
562d3460 TW |
2955 | { |
2956 | if ((region->current < region->origin | |
2957 | || (region->current - region->origin > region->length)) | |
2958 | && ((region->current != region->origin + region->length) | |
b7a26f91 | 2959 | || base == 0)) |
562d3460 TW |
2960 | { |
2961 | if (tree != (etree_type *) NULL) | |
b7a26f91 KH |
2962 | { |
2963 | einfo (_("%X%P: address 0x%v of %B section %s is not within region %s\n"), | |
2964 | region->current, | |
2965 | os->bfd_section->owner, | |
2966 | os->bfd_section->name, | |
2967 | region->name); | |
2968 | } | |
562d3460 | 2969 | else |
b7a26f91 KH |
2970 | { |
2971 | einfo (_("%X%P: region %s is full (%B section %s)\n"), | |
2972 | region->name, | |
2973 | os->bfd_section->owner, | |
2974 | os->bfd_section->name); | |
2975 | } | |
562d3460 TW |
2976 | /* Reset the region pointer. */ |
2977 | region->current = region->origin; | |
2978 | } | |
2979 | } | |
2980 | ||
252b5132 RH |
2981 | /* Set the sizes for all the output sections. */ |
2982 | ||
2d20f7bf | 2983 | static bfd_vma |
cf888e70 NC |
2984 | lang_size_sections_1 (s, output_section_statement, prev, fill, dot, relax, |
2985 | check_regions) | |
08da4cac KH |
2986 | lang_statement_union_type *s; |
2987 | lang_output_section_statement_type *output_section_statement; | |
2988 | lang_statement_union_type **prev; | |
2c382fb6 | 2989 | fill_type *fill; |
252b5132 | 2990 | bfd_vma dot; |
b34976b6 | 2991 | bfd_boolean *relax; |
cf888e70 | 2992 | bfd_boolean check_regions; |
252b5132 | 2993 | { |
5f992e62 | 2994 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
f6af82bd | 2995 | ldfile_output_machine); |
4cbfc3ac | 2996 | |
252b5132 | 2997 | /* Size up the sections from their constituent parts. */ |
bba1a0c0 | 2998 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
2999 | { |
3000 | switch (s->header.type) | |
3001 | { | |
3002 | case lang_output_section_statement_enum: | |
3003 | { | |
3004 | bfd_vma after; | |
d1778b88 | 3005 | lang_output_section_statement_type *os; |
252b5132 | 3006 | |
d1778b88 | 3007 | os = &s->output_section_statement; |
252b5132 RH |
3008 | if (os->bfd_section == NULL) |
3009 | /* This section was never actually created. */ | |
3010 | break; | |
3011 | ||
3012 | /* If this is a COFF shared library section, use the size and | |
3013 | address from the input section. FIXME: This is COFF | |
3014 | specific; it would be cleaner if there were some other way | |
3015 | to do this, but nothing simple comes to mind. */ | |
3016 | if ((os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
3017 | { | |
08da4cac | 3018 | asection *input; |
252b5132 RH |
3019 | |
3020 | if (os->children.head == NULL | |
bba1a0c0 | 3021 | || os->children.head->header.next != NULL |
252b5132 RH |
3022 | || os->children.head->header.type != lang_input_section_enum) |
3023 | einfo (_("%P%X: Internal error on COFF shared library section %s\n"), | |
3024 | os->name); | |
3025 | ||
3026 | input = os->children.head->input_section.section; | |
3027 | bfd_set_section_vma (os->bfd_section->owner, | |
3028 | os->bfd_section, | |
3029 | bfd_section_vma (input->owner, input)); | |
3030 | os->bfd_section->_raw_size = input->_raw_size; | |
3031 | break; | |
3032 | } | |
3033 | ||
3034 | if (bfd_is_abs_section (os->bfd_section)) | |
3035 | { | |
3036 | /* No matter what happens, an abs section starts at zero. */ | |
3037 | ASSERT (os->bfd_section->vma == 0); | |
3038 | } | |
3039 | else | |
3040 | { | |
3041 | if (os->addr_tree == (etree_type *) NULL) | |
3042 | { | |
3043 | /* No address specified for this section, get one | |
3044 | from the region specification. */ | |
3045 | if (os->region == (lang_memory_region_type *) NULL | |
3046 | || (((bfd_get_section_flags (output_bfd, os->bfd_section) | |
3047 | & (SEC_ALLOC | SEC_LOAD)) != 0) | |
3048 | && os->region->name[0] == '*' | |
3049 | && strcmp (os->region->name, "*default*") == 0)) | |
3050 | { | |
3051 | os->region = lang_memory_default (os->bfd_section); | |
3052 | } | |
3053 | ||
3054 | /* If a loadable section is using the default memory | |
3055 | region, and some non default memory regions were | |
66184979 | 3056 | defined, issue an error message. */ |
252b5132 RH |
3057 | if ((bfd_get_section_flags (output_bfd, os->bfd_section) |
3058 | & (SEC_ALLOC | SEC_LOAD)) != 0 | |
d08a14c3 AM |
3059 | && (bfd_get_section_flags (output_bfd, os->bfd_section) |
3060 | & SEC_NEVER_LOAD) == 0 | |
252b5132 | 3061 | && ! link_info.relocateable |
cf888e70 | 3062 | && check_regions |
252b5132 RH |
3063 | && strcmp (os->region->name, "*default*") == 0 |
3064 | && lang_memory_region_list != NULL | |
d1778b88 AM |
3065 | && (strcmp (lang_memory_region_list->name, |
3066 | "*default*") != 0 | |
252b5132 | 3067 | || lang_memory_region_list->next != NULL)) |
66184979 NC |
3068 | { |
3069 | /* By default this is an error rather than just a | |
3070 | warning because if we allocate the section to the | |
3071 | default memory region we can end up creating an | |
3072 | excessivly large binary, or even seg faulting when | |
3073 | attmepting to perform a negative seek. See | |
3074 | http://sources.redhat.com/ml/binutils/2003-04/msg00423.html | |
3075 | for an example of this. This behaviour can be | |
3076 | overridden by the using the --no-check-sections | |
3077 | switch. */ | |
3078 | if (command_line.check_section_addresses) | |
3079 | einfo (_("%P%F: error: no memory region specified for loadable section `%s'\n"), | |
3080 | bfd_get_section_name (output_bfd, | |
3081 | os->bfd_section)); | |
3082 | else | |
3083 | einfo (_("%P: warning: no memory region specified for loadable section `%s'\n"), | |
3084 | bfd_get_section_name (output_bfd, | |
3085 | os->bfd_section)); | |
3086 | } | |
252b5132 RH |
3087 | |
3088 | dot = os->region->current; | |
5f992e62 | 3089 | |
252b5132 RH |
3090 | if (os->section_alignment == -1) |
3091 | { | |
3092 | bfd_vma olddot; | |
3093 | ||
3094 | olddot = dot; | |
d1778b88 AM |
3095 | dot = align_power (dot, |
3096 | os->bfd_section->alignment_power); | |
252b5132 RH |
3097 | |
3098 | if (dot != olddot && config.warn_section_align) | |
3099 | einfo (_("%P: warning: changing start of section %s by %u bytes\n"), | |
3100 | os->name, (unsigned int) (dot - olddot)); | |
3101 | } | |
3102 | } | |
3103 | else | |
3104 | { | |
3105 | etree_value_type r; | |
3106 | ||
3107 | r = exp_fold_tree (os->addr_tree, | |
3108 | abs_output_section, | |
3109 | lang_allocating_phase_enum, | |
3110 | dot, &dot); | |
7c519c12 AM |
3111 | if (!r.valid_p) |
3112 | einfo (_("%F%S: non constant address expression for section %s\n"), | |
3113 | os->name); | |
3114 | ||
252b5132 RH |
3115 | dot = r.value + r.section->bfd_section->vma; |
3116 | } | |
5f992e62 | 3117 | |
252b5132 RH |
3118 | /* The section starts here. |
3119 | First, align to what the section needs. */ | |
3120 | ||
3121 | if (os->section_alignment != -1) | |
3122 | dot = align_power (dot, os->section_alignment); | |
3123 | ||
3124 | bfd_set_section_vma (0, os->bfd_section, dot); | |
5f992e62 | 3125 | |
252b5132 RH |
3126 | os->bfd_section->output_offset = 0; |
3127 | } | |
3128 | ||
2d20f7bf | 3129 | lang_size_sections_1 (os->children.head, os, &os->children.head, |
cf888e70 | 3130 | os->fill, dot, relax, check_regions); |
5f992e62 | 3131 | |
08da4cac KH |
3132 | /* Put the section within the requested block size, or |
3133 | align at the block boundary. */ | |
c553bb91 | 3134 | after = align_n (os->bfd_section->vma |
32edc927 | 3135 | + os->bfd_section->_raw_size / opb, |
252b5132 RH |
3136 | (bfd_vma) os->block_value); |
3137 | ||
3138 | if (bfd_is_abs_section (os->bfd_section)) | |
3139 | ASSERT (after == os->bfd_section->vma); | |
13ae64f3 | 3140 | else if ((os->bfd_section->flags & SEC_HAS_CONTENTS) == 0 |
704afa60 JJ |
3141 | && (os->bfd_section->flags & SEC_THREAD_LOCAL) |
3142 | && ! link_info.relocateable) | |
13ae64f3 | 3143 | os->bfd_section->_raw_size = 0; |
252b5132 | 3144 | else |
5f992e62 | 3145 | os->bfd_section->_raw_size = |
08da4cac | 3146 | (after - os->bfd_section->vma) * opb; |
9f88b410 | 3147 | |
4cbfc3ac | 3148 | dot = os->bfd_section->vma + os->bfd_section->_raw_size / opb; |
b34976b6 | 3149 | os->processed = TRUE; |
252b5132 | 3150 | |
9f88b410 RS |
3151 | if (os->update_dot_tree != 0) |
3152 | exp_fold_tree (os->update_dot_tree, abs_output_section, | |
3153 | lang_allocating_phase_enum, dot, &dot); | |
3154 | ||
252b5132 RH |
3155 | /* Update dot in the region ? |
3156 | We only do this if the section is going to be allocated, | |
3157 | since unallocated sections do not contribute to the region's | |
13392b77 | 3158 | overall size in memory. |
5f992e62 | 3159 | |
cce4c4c5 NC |
3160 | If the SEC_NEVER_LOAD bit is not set, it will affect the |
3161 | addresses of sections after it. We have to update | |
3162 | dot. */ | |
252b5132 | 3163 | if (os->region != (lang_memory_region_type *) NULL |
cce4c4c5 NC |
3164 | && ((bfd_get_section_flags (output_bfd, os->bfd_section) |
3165 | & SEC_NEVER_LOAD) == 0 | |
3166 | || (bfd_get_section_flags (output_bfd, os->bfd_section) | |
3167 | & (SEC_ALLOC | SEC_LOAD)))) | |
252b5132 RH |
3168 | { |
3169 | os->region->current = dot; | |
5f992e62 | 3170 | |
cf888e70 NC |
3171 | if (check_regions) |
3172 | /* Make sure the new address is within the region. */ | |
3173 | os_region_check (os, os->region, os->addr_tree, | |
3174 | os->bfd_section->vma); | |
08da4cac KH |
3175 | |
3176 | /* If there's no load address specified, use the run | |
3177 | region as the load region. */ | |
3178 | if (os->lma_region == NULL && os->load_base == NULL) | |
3179 | os->lma_region = os->region; | |
3180 | ||
ee3cc2e2 | 3181 | if (os->lma_region != NULL && os->lma_region != os->region) |
08da4cac | 3182 | { |
ee3cc2e2 RS |
3183 | /* Set load_base, which will be handled later. */ |
3184 | os->load_base = exp_intop (os->lma_region->current); | |
3185 | os->lma_region->current += | |
3186 | os->bfd_section->_raw_size / opb; | |
cf888e70 NC |
3187 | if (check_regions) |
3188 | os_region_check (os, os->lma_region, NULL, | |
3189 | os->bfd_section->lma); | |
08da4cac | 3190 | } |
252b5132 RH |
3191 | } |
3192 | } | |
3193 | break; | |
3194 | ||
3195 | case lang_constructors_statement_enum: | |
2d20f7bf JJ |
3196 | dot = lang_size_sections_1 (constructor_list.head, |
3197 | output_section_statement, | |
3198 | &s->wild_statement.children.head, | |
cf888e70 | 3199 | fill, dot, relax, check_regions); |
252b5132 RH |
3200 | break; |
3201 | ||
3202 | case lang_data_statement_enum: | |
3203 | { | |
3204 | unsigned int size = 0; | |
3205 | ||
08da4cac KH |
3206 | s->data_statement.output_vma = |
3207 | dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
3208 | s->data_statement.output_section = |
3209 | output_section_statement->bfd_section; | |
3210 | ||
3211 | switch (s->data_statement.type) | |
3212 | { | |
08da4cac KH |
3213 | default: |
3214 | abort (); | |
252b5132 RH |
3215 | case QUAD: |
3216 | case SQUAD: | |
3217 | size = QUAD_SIZE; | |
3218 | break; | |
3219 | case LONG: | |
3220 | size = LONG_SIZE; | |
3221 | break; | |
3222 | case SHORT: | |
3223 | size = SHORT_SIZE; | |
3224 | break; | |
3225 | case BYTE: | |
3226 | size = BYTE_SIZE; | |
3227 | break; | |
3228 | } | |
08da4cac KH |
3229 | if (size < opb) |
3230 | size = opb; | |
4cbfc3ac | 3231 | dot += size / opb; |
252b5132 RH |
3232 | output_section_statement->bfd_section->_raw_size += size; |
3233 | /* The output section gets contents, and then we inspect for | |
3234 | any flags set in the input script which override any ALLOC. */ | |
3235 | output_section_statement->bfd_section->flags |= SEC_HAS_CONTENTS; | |
08da4cac KH |
3236 | if (!(output_section_statement->flags & SEC_NEVER_LOAD)) |
3237 | { | |
3238 | output_section_statement->bfd_section->flags |= | |
3239 | SEC_ALLOC | SEC_LOAD; | |
3240 | } | |
252b5132 RH |
3241 | } |
3242 | break; | |
3243 | ||
3244 | case lang_reloc_statement_enum: | |
3245 | { | |
3246 | int size; | |
3247 | ||
3248 | s->reloc_statement.output_vma = | |
3249 | dot - output_section_statement->bfd_section->vma; | |
3250 | s->reloc_statement.output_section = | |
3251 | output_section_statement->bfd_section; | |
3252 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
4cbfc3ac | 3253 | dot += size / opb; |
252b5132 RH |
3254 | output_section_statement->bfd_section->_raw_size += size; |
3255 | } | |
3256 | break; | |
5f992e62 | 3257 | |
252b5132 RH |
3258 | case lang_wild_statement_enum: |
3259 | ||
2d20f7bf JJ |
3260 | dot = lang_size_sections_1 (s->wild_statement.children.head, |
3261 | output_section_statement, | |
3262 | &s->wild_statement.children.head, | |
cf888e70 | 3263 | fill, dot, relax, check_regions); |
252b5132 RH |
3264 | |
3265 | break; | |
3266 | ||
3267 | case lang_object_symbols_statement_enum: | |
3268 | link_info.create_object_symbols_section = | |
3269 | output_section_statement->bfd_section; | |
3270 | break; | |
3271 | case lang_output_statement_enum: | |
3272 | case lang_target_statement_enum: | |
3273 | break; | |
3274 | case lang_input_section_enum: | |
3275 | { | |
3276 | asection *i; | |
3277 | ||
3278 | i = (*prev)->input_section.section; | |
3279 | if (! relax) | |
3280 | { | |
3281 | if (i->_cooked_size == 0) | |
3282 | i->_cooked_size = i->_raw_size; | |
3283 | } | |
3284 | else | |
3285 | { | |
b34976b6 | 3286 | bfd_boolean again; |
252b5132 RH |
3287 | |
3288 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) | |
3289 | einfo (_("%P%F: can't relax section: %E\n")); | |
3290 | if (again) | |
b34976b6 | 3291 | *relax = TRUE; |
252b5132 | 3292 | } |
b3327aad AM |
3293 | dot = size_input_section (prev, output_section_statement, |
3294 | output_section_statement->fill, dot); | |
252b5132 RH |
3295 | } |
3296 | break; | |
3297 | case lang_input_statement_enum: | |
3298 | break; | |
3299 | case lang_fill_statement_enum: | |
08da4cac KH |
3300 | s->fill_statement.output_section = |
3301 | output_section_statement->bfd_section; | |
252b5132 RH |
3302 | |
3303 | fill = s->fill_statement.fill; | |
3304 | break; | |
3305 | case lang_assignment_statement_enum: | |
3306 | { | |
3307 | bfd_vma newdot = dot; | |
3308 | ||
3309 | exp_fold_tree (s->assignment_statement.exp, | |
3310 | output_section_statement, | |
3311 | lang_allocating_phase_enum, | |
3312 | dot, | |
3313 | &newdot); | |
3314 | ||
3315 | if (newdot != dot) | |
3316 | { | |
252b5132 RH |
3317 | if (output_section_statement == abs_output_section) |
3318 | { | |
3319 | /* If we don't have an output section, then just adjust | |
3320 | the default memory address. */ | |
3321 | lang_memory_region_lookup ("*default*")->current = newdot; | |
3322 | } | |
b3327aad | 3323 | else |
252b5132 | 3324 | { |
b3327aad AM |
3325 | /* Insert a pad after this statement. We can't |
3326 | put the pad before when relaxing, in case the | |
3327 | assignment references dot. */ | |
3328 | insert_pad (&s->header.next, fill, (newdot - dot) * opb, | |
3329 | output_section_statement->bfd_section, dot); | |
3330 | ||
3331 | /* Don't neuter the pad below when relaxing. */ | |
3332 | s = s->header.next; | |
252b5132 RH |
3333 | } |
3334 | ||
3335 | dot = newdot; | |
3336 | } | |
3337 | } | |
3338 | break; | |
3339 | ||
3340 | case lang_padding_statement_enum: | |
c0c330a7 AM |
3341 | /* If this is the first time lang_size_sections is called, |
3342 | we won't have any padding statements. If this is the | |
3343 | second or later passes when relaxing, we should allow | |
3344 | padding to shrink. If padding is needed on this pass, it | |
3345 | will be added back in. */ | |
3346 | s->padding_statement.size = 0; | |
6e814ff8 AM |
3347 | |
3348 | /* Make sure output_offset is valid. If relaxation shrinks | |
3349 | the section and this pad isn't needed, it's possible to | |
3350 | have output_offset larger than the final size of the | |
3351 | section. bfd_set_section_contents will complain even for | |
3352 | a pad size of zero. */ | |
3353 | s->padding_statement.output_offset | |
3354 | = dot - output_section_statement->bfd_section->vma; | |
252b5132 RH |
3355 | break; |
3356 | ||
3357 | case lang_group_statement_enum: | |
2d20f7bf JJ |
3358 | dot = lang_size_sections_1 (s->group_statement.children.head, |
3359 | output_section_statement, | |
3360 | &s->group_statement.children.head, | |
cf888e70 | 3361 | fill, dot, relax, check_regions); |
252b5132 RH |
3362 | break; |
3363 | ||
3364 | default: | |
3365 | FAIL (); | |
3366 | break; | |
3367 | ||
c0c330a7 | 3368 | /* We can only get here when relaxing is turned on. */ |
252b5132 RH |
3369 | case lang_address_statement_enum: |
3370 | break; | |
3371 | } | |
3372 | prev = &s->header.next; | |
3373 | } | |
3374 | return dot; | |
3375 | } | |
3376 | ||
2d20f7bf | 3377 | bfd_vma |
cf888e70 NC |
3378 | lang_size_sections (s, output_section_statement, prev, fill, dot, relax, |
3379 | check_regions) | |
2d20f7bf JJ |
3380 | lang_statement_union_type *s; |
3381 | lang_output_section_statement_type *output_section_statement; | |
3382 | lang_statement_union_type **prev; | |
2c382fb6 | 3383 | fill_type *fill; |
2d20f7bf | 3384 | bfd_vma dot; |
b34976b6 | 3385 | bfd_boolean *relax; |
cf888e70 | 3386 | bfd_boolean check_regions; |
2d20f7bf JJ |
3387 | { |
3388 | bfd_vma result; | |
3389 | ||
3390 | exp_data_seg.phase = exp_dataseg_none; | |
3391 | result = lang_size_sections_1 (s, output_section_statement, prev, fill, | |
cf888e70 | 3392 | dot, relax, check_regions); |
2d20f7bf JJ |
3393 | if (exp_data_seg.phase == exp_dataseg_end_seen) |
3394 | { | |
3395 | /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_END pair was seen, check whether | |
3396 | a page could be saved in the data segment. */ | |
3397 | bfd_vma first, last; | |
3398 | ||
3399 | first = -exp_data_seg.base & (exp_data_seg.pagesize - 1); | |
3400 | last = exp_data_seg.end & (exp_data_seg.pagesize - 1); | |
3401 | if (first && last | |
3402 | && ((exp_data_seg.base & ~(exp_data_seg.pagesize - 1)) | |
3403 | != (exp_data_seg.end & ~(exp_data_seg.pagesize - 1))) | |
3404 | && first + last <= exp_data_seg.pagesize) | |
3405 | { | |
3406 | exp_data_seg.phase = exp_dataseg_adjust; | |
3407 | result = lang_size_sections_1 (s, output_section_statement, prev, | |
cf888e70 | 3408 | fill, dot, relax, check_regions); |
2d20f7bf JJ |
3409 | } |
3410 | } | |
3411 | ||
3412 | return result; | |
3413 | } | |
3414 | ||
252b5132 RH |
3415 | bfd_vma |
3416 | lang_do_assignments (s, output_section_statement, fill, dot) | |
08da4cac KH |
3417 | lang_statement_union_type *s; |
3418 | lang_output_section_statement_type *output_section_statement; | |
2c382fb6 | 3419 | fill_type *fill; |
252b5132 RH |
3420 | bfd_vma dot; |
3421 | { | |
5f992e62 AM |
3422 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
3423 | ldfile_output_machine); | |
4cbfc3ac | 3424 | |
bba1a0c0 | 3425 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
3426 | { |
3427 | switch (s->header.type) | |
3428 | { | |
3429 | case lang_constructors_statement_enum: | |
3430 | dot = lang_do_assignments (constructor_list.head, | |
3431 | output_section_statement, | |
3432 | fill, | |
3433 | dot); | |
3434 | break; | |
3435 | ||
3436 | case lang_output_section_statement_enum: | |
3437 | { | |
d1778b88 | 3438 | lang_output_section_statement_type *os; |
252b5132 | 3439 | |
d1778b88 | 3440 | os = &(s->output_section_statement); |
252b5132 RH |
3441 | if (os->bfd_section != NULL) |
3442 | { | |
3443 | dot = os->bfd_section->vma; | |
3444 | (void) lang_do_assignments (os->children.head, os, | |
3445 | os->fill, dot); | |
4cbfc3ac TW |
3446 | dot = os->bfd_section->vma + os->bfd_section->_raw_size / opb; |
3447 | ||
252b5132 | 3448 | } |
c13b1b77 | 3449 | if (os->load_base) |
252b5132 RH |
3450 | { |
3451 | /* If nothing has been placed into the output section then | |
4de2d33d | 3452 | it won't have a bfd_section. */ |
5f992e62 | 3453 | if (os->bfd_section) |
252b5132 | 3454 | { |
5f992e62 | 3455 | os->bfd_section->lma |
08da4cac KH |
3456 | = exp_get_abs_int (os->load_base, 0, "load base", |
3457 | lang_final_phase_enum); | |
252b5132 RH |
3458 | } |
3459 | } | |
3460 | } | |
3461 | break; | |
3462 | case lang_wild_statement_enum: | |
3463 | ||
3464 | dot = lang_do_assignments (s->wild_statement.children.head, | |
3465 | output_section_statement, | |
3466 | fill, dot); | |
3467 | ||
3468 | break; | |
3469 | ||
3470 | case lang_object_symbols_statement_enum: | |
3471 | case lang_output_statement_enum: | |
3472 | case lang_target_statement_enum: | |
3473 | #if 0 | |
3474 | case lang_common_statement_enum: | |
3475 | #endif | |
3476 | break; | |
3477 | case lang_data_statement_enum: | |
3478 | { | |
3479 | etree_value_type value; | |
3480 | ||
3481 | value = exp_fold_tree (s->data_statement.exp, | |
3482 | abs_output_section, | |
3483 | lang_final_phase_enum, dot, &dot); | |
3484 | s->data_statement.value = value.value; | |
7c519c12 | 3485 | if (!value.valid_p) |
252b5132 RH |
3486 | einfo (_("%F%P: invalid data statement\n")); |
3487 | } | |
b7a26f91 KH |
3488 | { |
3489 | unsigned int size; | |
08da4cac KH |
3490 | switch (s->data_statement.type) |
3491 | { | |
3492 | default: | |
3493 | abort (); | |
3494 | case QUAD: | |
3495 | case SQUAD: | |
3496 | size = QUAD_SIZE; | |
3497 | break; | |
3498 | case LONG: | |
3499 | size = LONG_SIZE; | |
3500 | break; | |
3501 | case SHORT: | |
3502 | size = SHORT_SIZE; | |
3503 | break; | |
3504 | case BYTE: | |
3505 | size = BYTE_SIZE; | |
3506 | break; | |
3507 | } | |
3508 | if (size < opb) | |
3509 | size = opb; | |
3510 | dot += size / opb; | |
3511 | } | |
252b5132 RH |
3512 | break; |
3513 | ||
3514 | case lang_reloc_statement_enum: | |
3515 | { | |
3516 | etree_value_type value; | |
3517 | ||
3518 | value = exp_fold_tree (s->reloc_statement.addend_exp, | |
3519 | abs_output_section, | |
3520 | lang_final_phase_enum, dot, &dot); | |
3521 | s->reloc_statement.addend_value = value.value; | |
7c519c12 | 3522 | if (!value.valid_p) |
252b5132 RH |
3523 | einfo (_("%F%P: invalid reloc statement\n")); |
3524 | } | |
4cbfc3ac | 3525 | dot += bfd_get_reloc_size (s->reloc_statement.howto) / opb; |
252b5132 RH |
3526 | break; |
3527 | ||
3528 | case lang_input_section_enum: | |
3529 | { | |
3530 | asection *in = s->input_section.section; | |
3531 | ||
3532 | if (in->_cooked_size != 0) | |
4cbfc3ac | 3533 | dot += in->_cooked_size / opb; |
252b5132 | 3534 | else |
4cbfc3ac | 3535 | dot += in->_raw_size / opb; |
252b5132 RH |
3536 | } |
3537 | break; | |
3538 | ||
3539 | case lang_input_statement_enum: | |
3540 | break; | |
3541 | case lang_fill_statement_enum: | |
3542 | fill = s->fill_statement.fill; | |
3543 | break; | |
3544 | case lang_assignment_statement_enum: | |
3545 | { | |
3546 | exp_fold_tree (s->assignment_statement.exp, | |
3547 | output_section_statement, | |
3548 | lang_final_phase_enum, | |
3549 | dot, | |
3550 | &dot); | |
3551 | } | |
3552 | ||
3553 | break; | |
3554 | case lang_padding_statement_enum: | |
4cbfc3ac | 3555 | dot += s->padding_statement.size / opb; |
252b5132 RH |
3556 | break; |
3557 | ||
3558 | case lang_group_statement_enum: | |
3559 | dot = lang_do_assignments (s->group_statement.children.head, | |
3560 | output_section_statement, | |
3561 | fill, dot); | |
3562 | ||
3563 | break; | |
3564 | ||
3565 | default: | |
3566 | FAIL (); | |
3567 | break; | |
3568 | case lang_address_statement_enum: | |
3569 | break; | |
3570 | } | |
3571 | ||
3572 | } | |
3573 | return dot; | |
3574 | } | |
3575 | ||
3576 | /* Fix any .startof. or .sizeof. symbols. When the assemblers see the | |
3577 | operator .startof. (section_name), it produces an undefined symbol | |
3578 | .startof.section_name. Similarly, when it sees | |
3579 | .sizeof. (section_name), it produces an undefined symbol | |
3580 | .sizeof.section_name. For all the output sections, we look for | |
3581 | such symbols, and set them to the correct value. */ | |
3582 | ||
3583 | static void | |
3584 | lang_set_startof () | |
3585 | { | |
3586 | asection *s; | |
3587 | ||
3588 | if (link_info.relocateable) | |
3589 | return; | |
3590 | ||
3591 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
3592 | { | |
3593 | const char *secname; | |
3594 | char *buf; | |
3595 | struct bfd_link_hash_entry *h; | |
3596 | ||
3597 | secname = bfd_get_section_name (output_bfd, s); | |
3598 | buf = xmalloc (10 + strlen (secname)); | |
3599 | ||
3600 | sprintf (buf, ".startof.%s", secname); | |
b34976b6 | 3601 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
3602 | if (h != NULL && h->type == bfd_link_hash_undefined) |
3603 | { | |
3604 | h->type = bfd_link_hash_defined; | |
3605 | h->u.def.value = bfd_get_section_vma (output_bfd, s); | |
3606 | h->u.def.section = bfd_abs_section_ptr; | |
3607 | } | |
3608 | ||
3609 | sprintf (buf, ".sizeof.%s", secname); | |
b34976b6 | 3610 | h = bfd_link_hash_lookup (link_info.hash, buf, FALSE, FALSE, TRUE); |
252b5132 RH |
3611 | if (h != NULL && h->type == bfd_link_hash_undefined) |
3612 | { | |
b7a26f91 | 3613 | unsigned opb; |
d1778b88 | 3614 | |
b7a26f91 | 3615 | opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
d1778b88 | 3616 | ldfile_output_machine); |
252b5132 RH |
3617 | h->type = bfd_link_hash_defined; |
3618 | if (s->_cooked_size != 0) | |
4cbfc3ac | 3619 | h->u.def.value = s->_cooked_size / opb; |
252b5132 | 3620 | else |
4cbfc3ac | 3621 | h->u.def.value = s->_raw_size / opb; |
252b5132 RH |
3622 | h->u.def.section = bfd_abs_section_ptr; |
3623 | } | |
3624 | ||
3625 | free (buf); | |
3626 | } | |
3627 | } | |
3628 | ||
3629 | static void | |
3630 | lang_finish () | |
3631 | { | |
3632 | struct bfd_link_hash_entry *h; | |
b34976b6 | 3633 | bfd_boolean warn; |
252b5132 RH |
3634 | |
3635 | if (link_info.relocateable || link_info.shared) | |
b34976b6 | 3636 | warn = FALSE; |
252b5132 | 3637 | else |
b34976b6 | 3638 | warn = TRUE; |
252b5132 | 3639 | |
e3e942e9 | 3640 | if (entry_symbol.name == (const char *) NULL) |
252b5132 RH |
3641 | { |
3642 | /* No entry has been specified. Look for start, but don't warn | |
3643 | if we don't find it. */ | |
e3e942e9 | 3644 | entry_symbol.name = "start"; |
b34976b6 | 3645 | warn = FALSE; |
252b5132 RH |
3646 | } |
3647 | ||
e3e942e9 | 3648 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name, |
b34976b6 | 3649 | FALSE, FALSE, TRUE); |
252b5132 RH |
3650 | if (h != (struct bfd_link_hash_entry *) NULL |
3651 | && (h->type == bfd_link_hash_defined | |
3652 | || h->type == bfd_link_hash_defweak) | |
3653 | && h->u.def.section->output_section != NULL) | |
3654 | { | |
3655 | bfd_vma val; | |
3656 | ||
3657 | val = (h->u.def.value | |
3658 | + bfd_get_section_vma (output_bfd, | |
3659 | h->u.def.section->output_section) | |
3660 | + h->u.def.section->output_offset); | |
3661 | if (! bfd_set_start_address (output_bfd, val)) | |
e3e942e9 | 3662 | einfo (_("%P%F:%s: can't set start address\n"), entry_symbol.name); |
252b5132 RH |
3663 | } |
3664 | else | |
3665 | { | |
3666 | bfd_vma val; | |
5f992e62 | 3667 | const char *send; |
252b5132 RH |
3668 | |
3669 | /* We couldn't find the entry symbol. Try parsing it as a | |
3670 | number. */ | |
e3e942e9 | 3671 | val = bfd_scan_vma (entry_symbol.name, &send, 0); |
252b5132 RH |
3672 | if (*send == '\0') |
3673 | { | |
3674 | if (! bfd_set_start_address (output_bfd, val)) | |
3675 | einfo (_("%P%F: can't set start address\n")); | |
3676 | } | |
3677 | else | |
3678 | { | |
3679 | asection *ts; | |
3680 | ||
3681 | /* Can't find the entry symbol, and it's not a number. Use | |
3682 | the first address in the text section. */ | |
1e281515 | 3683 | ts = bfd_get_section_by_name (output_bfd, entry_section); |
252b5132 RH |
3684 | if (ts != (asection *) NULL) |
3685 | { | |
3686 | if (warn) | |
3687 | einfo (_("%P: warning: cannot find entry symbol %s; defaulting to %V\n"), | |
e3e942e9 AM |
3688 | entry_symbol.name, |
3689 | bfd_get_section_vma (output_bfd, ts)); | |
252b5132 RH |
3690 | if (! bfd_set_start_address (output_bfd, |
3691 | bfd_get_section_vma (output_bfd, | |
3692 | ts))) | |
3693 | einfo (_("%P%F: can't set start address\n")); | |
3694 | } | |
3695 | else | |
3696 | { | |
3697 | if (warn) | |
3698 | einfo (_("%P: warning: cannot find entry symbol %s; not setting start address\n"), | |
e3e942e9 | 3699 | entry_symbol.name); |
252b5132 RH |
3700 | } |
3701 | } | |
3702 | } | |
3703 | } | |
3704 | ||
3705 | /* This is a small function used when we want to ignore errors from | |
3706 | BFD. */ | |
3707 | ||
3708 | static void | |
3709 | #ifdef ANSI_PROTOTYPES | |
87f2a346 | 3710 | ignore_bfd_errors (const char *s ATTRIBUTE_UNUSED, ...) |
252b5132 RH |
3711 | #else |
3712 | ignore_bfd_errors (s) | |
87f2a346 | 3713 | const char *s ATTRIBUTE_UNUSED; |
252b5132 RH |
3714 | #endif |
3715 | { | |
3716 | /* Don't do anything. */ | |
3717 | } | |
3718 | ||
3719 | /* Check that the architecture of all the input files is compatible | |
3720 | with the output file. Also call the backend to let it do any | |
3721 | other checking that is needed. */ | |
3722 | ||
3723 | static void | |
3724 | lang_check () | |
3725 | { | |
3726 | lang_statement_union_type *file; | |
3727 | bfd *input_bfd; | |
5f992e62 | 3728 | const bfd_arch_info_type *compatible; |
252b5132 RH |
3729 | |
3730 | for (file = file_chain.head; | |
3731 | file != (lang_statement_union_type *) NULL; | |
3732 | file = file->input_statement.next) | |
3733 | { | |
3734 | input_bfd = file->input_statement.the_bfd; | |
312b768e NC |
3735 | compatible = bfd_arch_get_compatible (input_bfd, output_bfd, |
3736 | command_line.accept_unknown_input_arch); | |
30cba025 AM |
3737 | |
3738 | /* In general it is not possible to perform a relocatable | |
3739 | link between differing object formats when the input | |
3740 | file has relocations, because the relocations in the | |
3741 | input format may not have equivalent representations in | |
3742 | the output format (and besides BFD does not translate | |
3743 | relocs for other link purposes than a final link). */ | |
d35a52e2 | 3744 | if ((link_info.relocateable || link_info.emitrelocations) |
30cba025 | 3745 | && (compatible == NULL |
d35a52e2 | 3746 | || bfd_get_flavour (input_bfd) != bfd_get_flavour (output_bfd)) |
30cba025 AM |
3747 | && (bfd_get_file_flags (input_bfd) & HAS_RELOC) != 0) |
3748 | { | |
3749 | einfo (_("%P%F: Relocatable linking with relocations from format %s (%B) to format %s (%B) is not supported\n"), | |
3750 | bfd_get_target (input_bfd), input_bfd, | |
3751 | bfd_get_target (output_bfd), output_bfd); | |
3752 | /* einfo with %F exits. */ | |
3753 | } | |
3754 | ||
252b5132 RH |
3755 | if (compatible == NULL) |
3756 | { | |
3757 | if (command_line.warn_mismatch) | |
3758 | einfo (_("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n"), | |
3759 | bfd_printable_name (input_bfd), input_bfd, | |
3760 | bfd_printable_name (output_bfd)); | |
3761 | } | |
b9247304 | 3762 | else if (bfd_count_sections (input_bfd)) |
252b5132 | 3763 | { |
b9247304 | 3764 | /* If the input bfd has no contents, it shouldn't set the |
b7a26f91 | 3765 | private data of the output bfd. */ |
b9247304 | 3766 | |
252b5132 RH |
3767 | bfd_error_handler_type pfn = NULL; |
3768 | ||
3769 | /* If we aren't supposed to warn about mismatched input | |
3770 | files, temporarily set the BFD error handler to a | |
3771 | function which will do nothing. We still want to call | |
3772 | bfd_merge_private_bfd_data, since it may set up | |
3773 | information which is needed in the output file. */ | |
3774 | if (! command_line.warn_mismatch) | |
3775 | pfn = bfd_set_error_handler (ignore_bfd_errors); | |
3776 | if (! bfd_merge_private_bfd_data (input_bfd, output_bfd)) | |
3777 | { | |
3778 | if (command_line.warn_mismatch) | |
3779 | einfo (_("%E%X: failed to merge target specific data of file %B\n"), | |
3780 | input_bfd); | |
3781 | } | |
3782 | if (! command_line.warn_mismatch) | |
3783 | bfd_set_error_handler (pfn); | |
3784 | } | |
3785 | } | |
3786 | } | |
3787 | ||
3788 | /* Look through all the global common symbols and attach them to the | |
3789 | correct section. The -sort-common command line switch may be used | |
3790 | to roughly sort the entries by size. */ | |
3791 | ||
3792 | static void | |
3793 | lang_common () | |
3794 | { | |
4818e05f AM |
3795 | if (command_line.inhibit_common_definition) |
3796 | return; | |
252b5132 RH |
3797 | if (link_info.relocateable |
3798 | && ! command_line.force_common_definition) | |
3799 | return; | |
3800 | ||
3801 | if (! config.sort_common) | |
3802 | bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL); | |
3803 | else | |
3804 | { | |
3805 | int power; | |
3806 | ||
3807 | for (power = 4; power >= 0; power--) | |
3808 | bfd_link_hash_traverse (link_info.hash, lang_one_common, | |
3809 | (PTR) &power); | |
3810 | } | |
3811 | } | |
3812 | ||
3813 | /* Place one common symbol in the correct section. */ | |
3814 | ||
b34976b6 | 3815 | static bfd_boolean |
252b5132 RH |
3816 | lang_one_common (h, info) |
3817 | struct bfd_link_hash_entry *h; | |
3818 | PTR info; | |
3819 | { | |
3820 | unsigned int power_of_two; | |
3821 | bfd_vma size; | |
3822 | asection *section; | |
5f992e62 AM |
3823 | unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture, |
3824 | ldfile_output_machine); | |
252b5132 RH |
3825 | |
3826 | if (h->type != bfd_link_hash_common) | |
b34976b6 | 3827 | return TRUE; |
252b5132 RH |
3828 | |
3829 | size = h->u.c.size; | |
3830 | power_of_two = h->u.c.p->alignment_power; | |
3831 | ||
3832 | if (config.sort_common | |
3833 | && power_of_two < (unsigned int) *(int *) info) | |
b34976b6 | 3834 | return TRUE; |
252b5132 RH |
3835 | |
3836 | section = h->u.c.p->section; | |
3837 | ||
3838 | /* Increase the size of the section. */ | |
c553bb91 AM |
3839 | section->_cooked_size = align_n ((section->_cooked_size + opb - 1) / opb, |
3840 | (bfd_vma) 1 << power_of_two) * opb; | |
252b5132 RH |
3841 | |
3842 | /* Adjust the alignment if necessary. */ | |
3843 | if (power_of_two > section->alignment_power) | |
3844 | section->alignment_power = power_of_two; | |
3845 | ||
3846 | /* Change the symbol from common to defined. */ | |
3847 | h->type = bfd_link_hash_defined; | |
3848 | h->u.def.section = section; | |
3849 | h->u.def.value = section->_cooked_size; | |
3850 | ||
3851 | /* Increase the size of the section. */ | |
3852 | section->_cooked_size += size; | |
3853 | ||
3854 | /* Make sure the section is allocated in memory, and make sure that | |
3855 | it is no longer a common section. */ | |
3856 | section->flags |= SEC_ALLOC; | |
08da4cac | 3857 | section->flags &= ~SEC_IS_COMMON; |
252b5132 RH |
3858 | |
3859 | if (config.map_file != NULL) | |
3860 | { | |
b34976b6 | 3861 | static bfd_boolean header_printed; |
252b5132 RH |
3862 | int len; |
3863 | char *name; | |
3864 | char buf[50]; | |
3865 | ||
3866 | if (! header_printed) | |
3867 | { | |
3868 | minfo (_("\nAllocating common symbols\n")); | |
3869 | minfo (_("Common symbol size file\n\n")); | |
b34976b6 | 3870 | header_printed = TRUE; |
252b5132 RH |
3871 | } |
3872 | ||
3873 | name = demangle (h->root.string); | |
3874 | minfo ("%s", name); | |
3875 | len = strlen (name); | |
3876 | free (name); | |
3877 | ||
3878 | if (len >= 19) | |
3879 | { | |
3880 | print_nl (); | |
3881 | len = 0; | |
3882 | } | |
3883 | while (len < 20) | |
3884 | { | |
3885 | print_space (); | |
3886 | ++len; | |
3887 | } | |
3888 | ||
3889 | minfo ("0x"); | |
3890 | if (size <= 0xffffffff) | |
3891 | sprintf (buf, "%lx", (unsigned long) size); | |
3892 | else | |
3893 | sprintf_vma (buf, size); | |
3894 | minfo ("%s", buf); | |
3895 | len = strlen (buf); | |
3896 | ||
3897 | while (len < 16) | |
3898 | { | |
3899 | print_space (); | |
3900 | ++len; | |
3901 | } | |
3902 | ||
3903 | minfo ("%B\n", section->owner); | |
3904 | } | |
3905 | ||
b34976b6 | 3906 | return TRUE; |
252b5132 RH |
3907 | } |
3908 | ||
08da4cac KH |
3909 | /* Run through the input files and ensure that every input section has |
3910 | somewhere to go. If one is found without a destination then create | |
3911 | an input request and place it into the statement tree. */ | |
252b5132 RH |
3912 | |
3913 | static void | |
3914 | lang_place_orphans () | |
3915 | { | |
e50d8076 | 3916 | LANG_FOR_EACH_INPUT_STATEMENT (file) |
252b5132 RH |
3917 | { |
3918 | asection *s; | |
3919 | ||
3920 | for (s = file->the_bfd->sections; | |
3921 | s != (asection *) NULL; | |
3922 | s = s->next) | |
3923 | { | |
3924 | if (s->output_section == (asection *) NULL) | |
3925 | { | |
396a2467 | 3926 | /* This section of the file is not attached, root |
08da4cac | 3927 | around for a sensible place for it to go. */ |
252b5132 RH |
3928 | |
3929 | if (file->just_syms_flag) | |
3930 | { | |
c2c01aa7 | 3931 | abort (); |
252b5132 RH |
3932 | } |
3933 | else if (strcmp (s->name, "COMMON") == 0) | |
3934 | { | |
3935 | /* This is a lonely common section which must have | |
3936 | come from an archive. We attach to the section | |
3937 | with the wildcard. */ | |
3938 | if (! link_info.relocateable | |
3939 | || command_line.force_common_definition) | |
3940 | { | |
3941 | if (default_common_section == NULL) | |
3942 | { | |
3943 | #if 0 | |
3944 | /* This message happens when using the | |
3945 | svr3.ifile linker script, so I have | |
3946 | disabled it. */ | |
3947 | info_msg (_("%P: no [COMMON] command, defaulting to .bss\n")); | |
3948 | #endif | |
3949 | default_common_section = | |
3950 | lang_output_section_statement_lookup (".bss"); | |
3951 | ||
3952 | } | |
39dcfe18 AM |
3953 | lang_add_section (&default_common_section->children, s, |
3954 | default_common_section, file); | |
252b5132 RH |
3955 | } |
3956 | } | |
3957 | else if (ldemul_place_orphan (file, s)) | |
3958 | ; | |
3959 | else | |
3960 | { | |
39dcfe18 | 3961 | lang_output_section_statement_type *os; |
252b5132 | 3962 | |
39dcfe18 AM |
3963 | os = lang_output_section_statement_lookup (s->name); |
3964 | lang_add_section (&os->children, s, os, file); | |
252b5132 RH |
3965 | } |
3966 | } | |
3967 | } | |
3968 | } | |
3969 | } | |
3970 | ||
252b5132 | 3971 | void |
aa8804e4 | 3972 | lang_set_flags (ptr, flags, invert) |
252b5132 | 3973 | lang_memory_region_type *ptr; |
5f992e62 | 3974 | const char *flags; |
aa8804e4 | 3975 | int invert; |
252b5132 | 3976 | { |
aa8804e4 | 3977 | flagword *ptr_flags; |
252b5132 | 3978 | |
aa8804e4 | 3979 | ptr_flags = invert ? &ptr->not_flags : &ptr->flags; |
252b5132 RH |
3980 | while (*flags) |
3981 | { | |
3982 | switch (*flags) | |
3983 | { | |
252b5132 RH |
3984 | case 'A': case 'a': |
3985 | *ptr_flags |= SEC_ALLOC; | |
3986 | break; | |
3987 | ||
3988 | case 'R': case 'r': | |
3989 | *ptr_flags |= SEC_READONLY; | |
3990 | break; | |
3991 | ||
3992 | case 'W': case 'w': | |
3993 | *ptr_flags |= SEC_DATA; | |
3994 | break; | |
3995 | ||
3996 | case 'X': case 'x': | |
3997 | *ptr_flags |= SEC_CODE; | |
3998 | break; | |
3999 | ||
4000 | case 'L': case 'l': | |
4001 | case 'I': case 'i': | |
4002 | *ptr_flags |= SEC_LOAD; | |
4003 | break; | |
4004 | ||
4005 | default: | |
4006 | einfo (_("%P%F: invalid syntax in flags\n")); | |
4007 | break; | |
4008 | } | |
4009 | flags++; | |
4010 | } | |
4011 | } | |
4012 | ||
4013 | /* Call a function on each input file. This function will be called | |
4014 | on an archive, but not on the elements. */ | |
4015 | ||
4016 | void | |
4017 | lang_for_each_input_file (func) | |
4018 | void (*func) PARAMS ((lang_input_statement_type *)); | |
4019 | { | |
4020 | lang_input_statement_type *f; | |
4021 | ||
4022 | for (f = (lang_input_statement_type *) input_file_chain.head; | |
4023 | f != NULL; | |
4024 | f = (lang_input_statement_type *) f->next_real_file) | |
4025 | func (f); | |
4026 | } | |
4027 | ||
4028 | /* Call a function on each file. The function will be called on all | |
4029 | the elements of an archive which are included in the link, but will | |
4030 | not be called on the archive file itself. */ | |
4031 | ||
4032 | void | |
4033 | lang_for_each_file (func) | |
4034 | void (*func) PARAMS ((lang_input_statement_type *)); | |
4035 | { | |
e50d8076 | 4036 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 RH |
4037 | { |
4038 | func (f); | |
4039 | } | |
4040 | } | |
4041 | ||
4042 | #if 0 | |
4043 | ||
4044 | /* Not used. */ | |
4045 | ||
4046 | void | |
4047 | lang_for_each_input_section (func) | |
08da4cac | 4048 | void (*func) PARAMS ((bfd *ab, asection *as)); |
252b5132 | 4049 | { |
e50d8076 | 4050 | LANG_FOR_EACH_INPUT_STATEMENT (f) |
252b5132 | 4051 | { |
08da4cac | 4052 | asection *s; |
252b5132 RH |
4053 | |
4054 | for (s = f->the_bfd->sections; | |
4055 | s != (asection *) NULL; | |
4056 | s = s->next) | |
4057 | { | |
4058 | func (f->the_bfd, s); | |
4059 | } | |
4060 | } | |
4061 | } | |
4062 | ||
4063 | #endif | |
4064 | ||
4065 | void | |
4066 | ldlang_add_file (entry) | |
08da4cac | 4067 | lang_input_statement_type *entry; |
252b5132 RH |
4068 | { |
4069 | bfd **pp; | |
4070 | ||
4071 | lang_statement_append (&file_chain, | |
4072 | (lang_statement_union_type *) entry, | |
4073 | &entry->next); | |
4074 | ||
4075 | /* The BFD linker needs to have a list of all input BFDs involved in | |
4076 | a link. */ | |
4077 | ASSERT (entry->the_bfd->link_next == (bfd *) NULL); | |
4078 | ASSERT (entry->the_bfd != output_bfd); | |
4079 | for (pp = &link_info.input_bfds; | |
4080 | *pp != (bfd *) NULL; | |
4081 | pp = &(*pp)->link_next) | |
4082 | ; | |
4083 | *pp = entry->the_bfd; | |
4084 | entry->the_bfd->usrdata = (PTR) entry; | |
4085 | bfd_set_gp_size (entry->the_bfd, g_switch_value); | |
4086 | ||
4087 | /* Look through the sections and check for any which should not be | |
4088 | included in the link. We need to do this now, so that we can | |
4089 | notice when the backend linker tries to report multiple | |
4090 | definition errors for symbols which are in sections we aren't | |
4091 | going to link. FIXME: It might be better to entirely ignore | |
4092 | symbols which are defined in sections which are going to be | |
4093 | discarded. This would require modifying the backend linker for | |
4094 | each backend which might set the SEC_LINK_ONCE flag. If we do | |
4095 | this, we should probably handle SEC_EXCLUDE in the same way. */ | |
4096 | ||
4097 | bfd_map_over_sections (entry->the_bfd, section_already_linked, (PTR) entry); | |
4098 | } | |
4099 | ||
4100 | void | |
4101 | lang_add_output (name, from_script) | |
5f992e62 | 4102 | const char *name; |
252b5132 RH |
4103 | int from_script; |
4104 | { | |
4105 | /* Make -o on command line override OUTPUT in script. */ | |
7c519c12 | 4106 | if (!had_output_filename || !from_script) |
252b5132 RH |
4107 | { |
4108 | output_filename = name; | |
b34976b6 | 4109 | had_output_filename = TRUE; |
252b5132 RH |
4110 | } |
4111 | } | |
4112 | ||
252b5132 RH |
4113 | static lang_output_section_statement_type *current_section; |
4114 | ||
4115 | static int | |
4116 | topower (x) | |
4117 | int x; | |
4118 | { | |
4119 | unsigned int i = 1; | |
4120 | int l; | |
4121 | ||
4122 | if (x < 0) | |
4123 | return -1; | |
4124 | ||
5f992e62 | 4125 | for (l = 0; l < 32; l++) |
252b5132 RH |
4126 | { |
4127 | if (i >= (unsigned int) x) | |
4128 | return l; | |
4129 | i <<= 1; | |
4130 | } | |
4131 | ||
4132 | return 0; | |
4133 | } | |
4134 | ||
aea4bd9d | 4135 | lang_output_section_statement_type * |
252b5132 RH |
4136 | lang_enter_output_section_statement (output_section_statement_name, |
4137 | address_exp, sectype, block_value, | |
4138 | align, subalign, ebase) | |
4139 | const char *output_section_statement_name; | |
08da4cac | 4140 | etree_type *address_exp; |
252b5132 RH |
4141 | enum section_type sectype; |
4142 | bfd_vma block_value; | |
4143 | etree_type *align; | |
4144 | etree_type *subalign; | |
4145 | etree_type *ebase; | |
4146 | { | |
4147 | lang_output_section_statement_type *os; | |
4148 | ||
4149 | current_section = | |
4150 | os = | |
4151 | lang_output_section_statement_lookup (output_section_statement_name); | |
4152 | ||
08da4cac KH |
4153 | /* Add this statement to tree. */ |
4154 | #if 0 | |
4155 | add_statement (lang_output_section_statement_enum, | |
4156 | output_section_statement); | |
4157 | #endif | |
4158 | /* Make next things chain into subchain of this. */ | |
252b5132 | 4159 | |
08da4cac KH |
4160 | if (os->addr_tree == (etree_type *) NULL) |
4161 | { | |
4162 | os->addr_tree = address_exp; | |
4163 | } | |
252b5132 RH |
4164 | os->sectype = sectype; |
4165 | if (sectype != noload_section) | |
4166 | os->flags = SEC_NO_FLAGS; | |
4167 | else | |
4168 | os->flags = SEC_NEVER_LOAD; | |
4169 | os->block_value = block_value ? block_value : 1; | |
4170 | stat_ptr = &os->children; | |
4171 | ||
08da4cac KH |
4172 | os->subsection_alignment = |
4173 | topower (exp_get_value_int (subalign, -1, "subsection alignment", 0)); | |
4174 | os->section_alignment = | |
4175 | topower (exp_get_value_int (align, -1, "section alignment", 0)); | |
252b5132 RH |
4176 | |
4177 | os->load_base = ebase; | |
aea4bd9d | 4178 | return os; |
252b5132 RH |
4179 | } |
4180 | ||
252b5132 RH |
4181 | void |
4182 | lang_final () | |
4183 | { | |
4184 | lang_output_statement_type *new = | |
4185 | new_stat (lang_output_statement, stat_ptr); | |
4186 | ||
4187 | new->name = output_filename; | |
4188 | } | |
4189 | ||
08da4cac KH |
4190 | /* Reset the current counters in the regions. */ |
4191 | ||
e3dc8847 HPN |
4192 | void |
4193 | lang_reset_memory_regions () | |
252b5132 RH |
4194 | { |
4195 | lang_memory_region_type *p = lang_memory_region_list; | |
b3327aad | 4196 | asection *o; |
252b5132 RH |
4197 | |
4198 | for (p = lang_memory_region_list; | |
4199 | p != (lang_memory_region_type *) NULL; | |
4200 | p = p->next) | |
4201 | { | |
4202 | p->old_length = (bfd_size_type) (p->current - p->origin); | |
4203 | p->current = p->origin; | |
4204 | } | |
b3327aad AM |
4205 | |
4206 | for (o = output_bfd->sections; o != NULL; o = o->next) | |
4207 | o->_raw_size = 0; | |
252b5132 RH |
4208 | } |
4209 | ||
b6bf44ba AM |
4210 | /* If the wild pattern was marked KEEP, the member sections |
4211 | should be as well. */ | |
252b5132 RH |
4212 | |
4213 | static void | |
b6bf44ba | 4214 | gc_section_callback (ptr, sec, section, file, data) |
252b5132 | 4215 | lang_wild_statement_type *ptr; |
b6bf44ba | 4216 | struct wildcard_list *sec ATTRIBUTE_UNUSED; |
4dec4d4e | 4217 | asection *section; |
87f2a346 | 4218 | lang_input_statement_type *file ATTRIBUTE_UNUSED; |
5f992e62 | 4219 | PTR data ATTRIBUTE_UNUSED; |
252b5132 | 4220 | { |
4dec4d4e RH |
4221 | if (ptr->keep_sections) |
4222 | section->flags |= SEC_KEEP; | |
252b5132 RH |
4223 | } |
4224 | ||
b6bf44ba | 4225 | /* Handle a wild statement, marking it against GC. */ |
252b5132 RH |
4226 | |
4227 | static void | |
b6bf44ba | 4228 | lang_gc_wild (s) |
252b5132 | 4229 | lang_wild_statement_type *s; |
252b5132 | 4230 | { |
b6bf44ba | 4231 | walk_wild (s, gc_section_callback, NULL); |
252b5132 RH |
4232 | } |
4233 | ||
4234 | /* Iterate over sections marking them against GC. */ | |
4235 | ||
4236 | static void | |
4237 | lang_gc_sections_1 (s) | |
08da4cac | 4238 | lang_statement_union_type *s; |
252b5132 | 4239 | { |
bba1a0c0 | 4240 | for (; s != (lang_statement_union_type *) NULL; s = s->header.next) |
252b5132 RH |
4241 | { |
4242 | switch (s->header.type) | |
4243 | { | |
4244 | case lang_wild_statement_enum: | |
b6bf44ba | 4245 | lang_gc_wild (&s->wild_statement); |
abc6ab0a | 4246 | break; |
252b5132 RH |
4247 | case lang_constructors_statement_enum: |
4248 | lang_gc_sections_1 (constructor_list.head); | |
4249 | break; | |
4250 | case lang_output_section_statement_enum: | |
4251 | lang_gc_sections_1 (s->output_section_statement.children.head); | |
4252 | break; | |
4253 | case lang_group_statement_enum: | |
4254 | lang_gc_sections_1 (s->group_statement.children.head); | |
4255 | break; | |
4256 | default: | |
4257 | break; | |
4258 | } | |
4259 | } | |
4260 | } | |
4261 | ||
4262 | static void | |
4263 | lang_gc_sections () | |
4264 | { | |
4265 | struct bfd_link_hash_entry *h; | |
e3e942e9 | 4266 | ldlang_undef_chain_list_type *ulist; |
252b5132 RH |
4267 | |
4268 | /* Keep all sections so marked in the link script. */ | |
4269 | ||
4270 | lang_gc_sections_1 (statement_list.head); | |
4271 | ||
e3e942e9 AM |
4272 | /* Keep all sections containing symbols undefined on the command-line, |
4273 | and the section containing the entry symbol. */ | |
252b5132 | 4274 | |
e3e942e9 | 4275 | for (ulist = link_info.gc_sym_list; ulist; ulist = ulist->next) |
252b5132 | 4276 | { |
5f992e62 | 4277 | h = bfd_link_hash_lookup (link_info.hash, ulist->name, |
b34976b6 | 4278 | FALSE, FALSE, FALSE); |
252b5132 RH |
4279 | |
4280 | if (h != (struct bfd_link_hash_entry *) NULL | |
08da4cac KH |
4281 | && (h->type == bfd_link_hash_defined |
4282 | || h->type == bfd_link_hash_defweak) | |
252b5132 RH |
4283 | && ! bfd_is_abs_section (h->u.def.section)) |
4284 | { | |
4285 | h->u.def.section->flags |= SEC_KEEP; | |
4286 | } | |
4287 | } | |
4288 | ||
4289 | bfd_gc_sections (output_bfd, &link_info); | |
4290 | } | |
4291 | ||
4292 | void | |
4293 | lang_process () | |
4294 | { | |
4295 | lang_reasonable_defaults (); | |
4296 | current_target = default_target; | |
4297 | ||
08da4cac KH |
4298 | /* Open the output file. */ |
4299 | lang_for_each_statement (ldlang_open_output); | |
252b5132 RH |
4300 | |
4301 | ldemul_create_output_section_statements (); | |
4302 | ||
08da4cac | 4303 | /* Add to the hash table all undefineds on the command line. */ |
252b5132 RH |
4304 | lang_place_undefineds (); |
4305 | ||
9503fd87 ILT |
4306 | already_linked_table_init (); |
4307 | ||
08da4cac | 4308 | /* Create a bfd for each input file. */ |
252b5132 | 4309 | current_target = default_target; |
b34976b6 | 4310 | open_input_bfds (statement_list.head, FALSE); |
252b5132 | 4311 | |
e3e942e9 AM |
4312 | link_info.gc_sym_list = &entry_symbol; |
4313 | if (entry_symbol.name == NULL) | |
4314 | link_info.gc_sym_list = ldlang_undef_chain_list_head; | |
4315 | ||
252b5132 RH |
4316 | ldemul_after_open (); |
4317 | ||
9503fd87 ILT |
4318 | already_linked_table_free (); |
4319 | ||
252b5132 RH |
4320 | /* Make sure that we're not mixing architectures. We call this |
4321 | after all the input files have been opened, but before we do any | |
4322 | other processing, so that any operations merge_private_bfd_data | |
4323 | does on the output file will be known during the rest of the | |
4324 | link. */ | |
4325 | lang_check (); | |
4326 | ||
4327 | /* Handle .exports instead of a version script if we're told to do so. */ | |
4328 | if (command_line.version_exports_section) | |
4329 | lang_do_version_exports_section (); | |
4330 | ||
4331 | /* Build all sets based on the information gathered from the input | |
4332 | files. */ | |
4333 | ldctor_build_sets (); | |
4334 | ||
4335 | /* Remove unreferenced sections if asked to. */ | |
4336 | if (command_line.gc_sections) | |
4337 | lang_gc_sections (); | |
4338 | ||
8550eb6e JJ |
4339 | /* If there were any SEC_MERGE sections, finish their merging, so that |
4340 | section sizes can be computed. This has to be done after GC of sections, | |
4341 | so that GCed sections are not merged, but before assigning output | |
4342 | sections, since removing whole input sections is hard then. */ | |
4343 | bfd_merge_sections (output_bfd, &link_info); | |
4344 | ||
08da4cac | 4345 | /* Size up the common data. */ |
252b5132 RH |
4346 | lang_common (); |
4347 | ||
4348 | /* Run through the contours of the script and attach input sections | |
08da4cac | 4349 | to the correct output sections. */ |
252b5132 RH |
4350 | map_input_to_output_sections (statement_list.head, (char *) NULL, |
4351 | (lang_output_section_statement_type *) NULL); | |
4352 | ||
08da4cac | 4353 | /* Find any sections not attached explicitly and handle them. */ |
252b5132 RH |
4354 | lang_place_orphans (); |
4355 | ||
862120bd AM |
4356 | if (! link_info.relocateable) |
4357 | { | |
4358 | /* Look for a text section and set the readonly attribute in it. */ | |
4359 | asection *found = bfd_get_section_by_name (output_bfd, ".text"); | |
4360 | ||
4361 | if (found != (asection *) NULL) | |
4362 | { | |
4363 | if (config.text_read_only) | |
4364 | found->flags |= SEC_READONLY; | |
4365 | else | |
4366 | found->flags &= ~SEC_READONLY; | |
4367 | } | |
4368 | } | |
4369 | ||
4370 | /* Do anything special before sizing sections. This is where ELF | |
4371 | and other back-ends size dynamic sections. */ | |
252b5132 RH |
4372 | ldemul_before_allocation (); |
4373 | ||
4bd5a393 AM |
4374 | if (!link_info.relocateable) |
4375 | strip_excluded_output_sections (); | |
4376 | ||
252b5132 RH |
4377 | /* We must record the program headers before we try to fix the |
4378 | section positions, since they will affect SIZEOF_HEADERS. */ | |
4379 | lang_record_phdrs (); | |
4380 | ||
b3327aad AM |
4381 | /* Size up the sections. */ |
4382 | lang_size_sections (statement_list.head, | |
4383 | abs_output_section, | |
cf888e70 NC |
4384 | &statement_list.head, 0, (bfd_vma) 0, NULL, |
4385 | command_line.relax ? FALSE : TRUE); | |
b3327aad | 4386 | |
08da4cac | 4387 | /* Now run around and relax if we can. */ |
252b5132 RH |
4388 | if (command_line.relax) |
4389 | { | |
252b5132 | 4390 | /* Keep relaxing until bfd_relax_section gives up. */ |
b34976b6 | 4391 | bfd_boolean relax_again; |
b3327aad | 4392 | |
252b5132 RH |
4393 | do |
4394 | { | |
e3dc8847 | 4395 | lang_reset_memory_regions (); |
252b5132 | 4396 | |
b34976b6 | 4397 | relax_again = FALSE; |
252b5132 RH |
4398 | |
4399 | /* Note: pe-dll.c does something like this also. If you find | |
4400 | you need to change this code, you probably need to change | |
08da4cac | 4401 | pe-dll.c also. DJ */ |
252b5132 RH |
4402 | |
4403 | /* Do all the assignments with our current guesses as to | |
4404 | section sizes. */ | |
4405 | lang_do_assignments (statement_list.head, | |
4406 | abs_output_section, | |
2c382fb6 | 4407 | (fill_type *) 0, (bfd_vma) 0); |
252b5132 RH |
4408 | |
4409 | /* Perform another relax pass - this time we know where the | |
0d6d936f | 4410 | globals are, so can make a better guess. */ |
252b5132 RH |
4411 | lang_size_sections (statement_list.head, |
4412 | abs_output_section, | |
0d6d936f | 4413 | &statement_list.head, 0, (bfd_vma) 0, |
cf888e70 | 4414 | &relax_again, FALSE); |
c7996ad6 L |
4415 | |
4416 | /* If the normal relax is done and the relax finalize pass | |
4417 | is not performed yet, we perform another relax pass. */ | |
4418 | if (!relax_again && !link_info.relax_finalizing) | |
4419 | { | |
4420 | link_info.relax_finalizing = TRUE; | |
4421 | relax_again = TRUE; | |
4422 | } | |
252b5132 RH |
4423 | } |
4424 | while (relax_again); | |
cf888e70 NC |
4425 | |
4426 | /* Final extra sizing to report errors. */ | |
4427 | lang_reset_memory_regions (); | |
4428 | lang_do_assignments (statement_list.head, | |
4429 | abs_output_section, | |
4430 | (fill_type *) 0, (bfd_vma) 0); | |
4431 | lang_size_sections (statement_list.head, | |
4432 | abs_output_section, | |
4433 | & statement_list.head, 0, (bfd_vma) 0, | |
4434 | NULL, TRUE); | |
252b5132 | 4435 | } |
252b5132 RH |
4436 | |
4437 | /* See if anything special should be done now we know how big | |
4438 | everything is. */ | |
4439 | ldemul_after_allocation (); | |
4440 | ||
4441 | /* Fix any .startof. or .sizeof. symbols. */ | |
4442 | lang_set_startof (); | |
4443 | ||
08da4cac KH |
4444 | /* Do all the assignments, now that we know the final resting places |
4445 | of all the symbols. */ | |
252b5132 RH |
4446 | |
4447 | lang_do_assignments (statement_list.head, | |
4448 | abs_output_section, | |
2c382fb6 | 4449 | (fill_type *) 0, (bfd_vma) 0); |
252b5132 RH |
4450 | |
4451 | /* Make sure that the section addresses make sense. */ | |
4452 | if (! link_info.relocateable | |
4453 | && command_line.check_section_addresses) | |
4454 | lang_check_section_addresses (); | |
5f992e62 | 4455 | |
08da4cac | 4456 | /* Final stuffs. */ |
252b5132 RH |
4457 | |
4458 | ldemul_finish (); | |
4459 | lang_finish (); | |
4460 | } | |
4461 | ||
4462 | /* EXPORTED TO YACC */ | |
4463 | ||
4464 | void | |
b6bf44ba AM |
4465 | lang_add_wild (filespec, section_list, keep_sections) |
4466 | struct wildcard_spec *filespec; | |
4467 | struct wildcard_list *section_list; | |
b34976b6 | 4468 | bfd_boolean keep_sections; |
252b5132 | 4469 | { |
b6bf44ba AM |
4470 | struct wildcard_list *curr, *next; |
4471 | lang_wild_statement_type *new; | |
4472 | ||
4473 | /* Reverse the list as the parser puts it back to front. */ | |
4474 | for (curr = section_list, section_list = NULL; | |
4475 | curr != NULL; | |
4476 | section_list = curr, curr = next) | |
4477 | { | |
4478 | if (curr->spec.name != NULL && strcmp (curr->spec.name, "COMMON") == 0) | |
b34976b6 | 4479 | placed_commons = TRUE; |
252b5132 | 4480 | |
b6bf44ba AM |
4481 | next = curr->next; |
4482 | curr->next = section_list; | |
4483 | } | |
4484 | ||
4485 | if (filespec != NULL && filespec->name != NULL) | |
252b5132 | 4486 | { |
b6bf44ba AM |
4487 | if (strcmp (filespec->name, "*") == 0) |
4488 | filespec->name = NULL; | |
4489 | else if (! wildcardp (filespec->name)) | |
b34976b6 | 4490 | lang_has_input_file = TRUE; |
252b5132 | 4491 | } |
b6bf44ba AM |
4492 | |
4493 | new = new_stat (lang_wild_statement, stat_ptr); | |
4494 | new->filename = NULL; | |
b34976b6 | 4495 | new->filenames_sorted = FALSE; |
b6bf44ba | 4496 | if (filespec != NULL) |
252b5132 | 4497 | { |
b6bf44ba AM |
4498 | new->filename = filespec->name; |
4499 | new->filenames_sorted = filespec->sorted; | |
252b5132 | 4500 | } |
b6bf44ba | 4501 | new->section_list = section_list; |
252b5132 | 4502 | new->keep_sections = keep_sections; |
252b5132 RH |
4503 | lang_list_init (&new->children); |
4504 | } | |
4505 | ||
4506 | void | |
4507 | lang_section_start (name, address) | |
5f992e62 | 4508 | const char *name; |
08da4cac | 4509 | etree_type *address; |
252b5132 | 4510 | { |
d1778b88 | 4511 | lang_address_statement_type *ad; |
252b5132 | 4512 | |
d1778b88 | 4513 | ad = new_stat (lang_address_statement, stat_ptr); |
252b5132 RH |
4514 | ad->section_name = name; |
4515 | ad->address = address; | |
4516 | } | |
4517 | ||
4518 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called | |
4519 | because of a -e argument on the command line, or zero if this is | |
4520 | called by ENTRY in a linker script. Command line arguments take | |
4521 | precedence. */ | |
4522 | ||
4523 | void | |
4524 | lang_add_entry (name, cmdline) | |
5f992e62 | 4525 | const char *name; |
b34976b6 | 4526 | bfd_boolean cmdline; |
252b5132 | 4527 | { |
e3e942e9 | 4528 | if (entry_symbol.name == NULL |
252b5132 RH |
4529 | || cmdline |
4530 | || ! entry_from_cmdline) | |
4531 | { | |
e3e942e9 | 4532 | entry_symbol.name = name; |
252b5132 RH |
4533 | entry_from_cmdline = cmdline; |
4534 | } | |
4535 | } | |
4536 | ||
4537 | void | |
4538 | lang_add_target (name) | |
5f992e62 | 4539 | const char *name; |
252b5132 RH |
4540 | { |
4541 | lang_target_statement_type *new = new_stat (lang_target_statement, | |
4542 | stat_ptr); | |
4543 | ||
4544 | new->target = name; | |
4545 | ||
4546 | } | |
4547 | ||
4548 | void | |
4549 | lang_add_map (name) | |
5f992e62 | 4550 | const char *name; |
252b5132 RH |
4551 | { |
4552 | while (*name) | |
4553 | { | |
4554 | switch (*name) | |
4555 | { | |
08da4cac | 4556 | case 'F': |
b34976b6 | 4557 | map_option_f = TRUE; |
252b5132 RH |
4558 | break; |
4559 | } | |
4560 | name++; | |
4561 | } | |
4562 | } | |
4563 | ||
4564 | void | |
2c382fb6 AM |
4565 | lang_add_fill (fill) |
4566 | fill_type *fill; | |
252b5132 RH |
4567 | { |
4568 | lang_fill_statement_type *new = new_stat (lang_fill_statement, | |
4569 | stat_ptr); | |
4570 | ||
2c382fb6 | 4571 | new->fill = fill; |
252b5132 RH |
4572 | } |
4573 | ||
4574 | void | |
4575 | lang_add_data (type, exp) | |
4576 | int type; | |
4577 | union etree_union *exp; | |
4578 | { | |
4579 | ||
4580 | lang_data_statement_type *new = new_stat (lang_data_statement, | |
4581 | stat_ptr); | |
4582 | ||
4583 | new->exp = exp; | |
4584 | new->type = type; | |
4585 | ||
4586 | } | |
4587 | ||
4588 | /* Create a new reloc statement. RELOC is the BFD relocation type to | |
4589 | generate. HOWTO is the corresponding howto structure (we could | |
4590 | look this up, but the caller has already done so). SECTION is the | |
4591 | section to generate a reloc against, or NAME is the name of the | |
4592 | symbol to generate a reloc against. Exactly one of SECTION and | |
4593 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
4594 | ||
4595 | void | |
4596 | lang_add_reloc (reloc, howto, section, name, addend) | |
4597 | bfd_reloc_code_real_type reloc; | |
4598 | reloc_howto_type *howto; | |
4599 | asection *section; | |
4600 | const char *name; | |
4601 | union etree_union *addend; | |
4602 | { | |
4603 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
5f992e62 | 4604 | |
252b5132 RH |
4605 | p->reloc = reloc; |
4606 | p->howto = howto; | |
4607 | p->section = section; | |
4608 | p->name = name; | |
4609 | p->addend_exp = addend; | |
4610 | ||
4611 | p->addend_value = 0; | |
4612 | p->output_section = NULL; | |
4613 | p->output_vma = 0; | |
4614 | } | |
4615 | ||
4616 | lang_assignment_statement_type * | |
4617 | lang_add_assignment (exp) | |
08da4cac | 4618 | etree_type *exp; |
252b5132 RH |
4619 | { |
4620 | lang_assignment_statement_type *new = new_stat (lang_assignment_statement, | |
4621 | stat_ptr); | |
4622 | ||
4623 | new->exp = exp; | |
4624 | return new; | |
4625 | } | |
4626 | ||
4627 | void | |
4628 | lang_add_attribute (attribute) | |
4629 | enum statement_enum attribute; | |
4630 | { | |
4631 | new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr); | |
4632 | } | |
4633 | ||
4634 | void | |
4635 | lang_startup (name) | |
5f992e62 | 4636 | const char *name; |
252b5132 RH |
4637 | { |
4638 | if (startup_file != (char *) NULL) | |
4639 | { | |
4640 | einfo (_("%P%Fmultiple STARTUP files\n")); | |
4641 | } | |
4642 | first_file->filename = name; | |
4643 | first_file->local_sym_name = name; | |
b34976b6 | 4644 | first_file->real = TRUE; |
252b5132 RH |
4645 | |
4646 | startup_file = name; | |
4647 | } | |
4648 | ||
4649 | void | |
4650 | lang_float (maybe) | |
b34976b6 | 4651 | bfd_boolean maybe; |
252b5132 RH |
4652 | { |
4653 | lang_float_flag = maybe; | |
4654 | } | |
4655 | ||
ee3cc2e2 RS |
4656 | |
4657 | /* Work out the load- and run-time regions from a script statement, and | |
4658 | store them in *LMA_REGION and *REGION respectively. | |
4659 | ||
4660 | MEMSPEC is the name of the run-time region, or "*default*" if the | |
4661 | statement didn't specify one. LMA_MEMSPEC is the name of the | |
4662 | load-time region, or null if the statement didn't specify one. | |
b34976b6 | 4663 | HAVE_LMA_P is TRUE if the statement had an explicit load address. |
ee3cc2e2 RS |
4664 | |
4665 | It is an error to specify both a load region and a load address. */ | |
4666 | ||
4667 | static void | |
4668 | lang_get_regions (region, lma_region, memspec, lma_memspec, have_lma_p) | |
4669 | struct memory_region_struct **region, **lma_region; | |
4670 | const char *memspec, *lma_memspec; | |
4671 | int have_lma_p; | |
4672 | { | |
4673 | *lma_region = lang_memory_region_lookup (lma_memspec); | |
4674 | ||
4675 | /* If no runtime region has been given, but the load region has | |
4676 | been, use the load region. */ | |
4677 | if (lma_memspec != 0 && strcmp (memspec, "*default*") == 0) | |
4678 | *region = *lma_region; | |
4679 | else | |
4680 | *region = lang_memory_region_lookup (memspec); | |
4681 | ||
4682 | if (have_lma_p && lma_memspec != 0) | |
4683 | einfo (_("%X%P:%S: section has both a load address and a load region\n")); | |
4684 | } | |
4685 | ||
252b5132 | 4686 | void |
562d3460 | 4687 | lang_leave_output_section_statement (fill, memspec, phdrs, lma_memspec) |
2c382fb6 | 4688 | fill_type *fill; |
252b5132 RH |
4689 | const char *memspec; |
4690 | struct lang_output_section_phdr_list *phdrs; | |
562d3460 | 4691 | const char *lma_memspec; |
252b5132 | 4692 | { |
ee3cc2e2 RS |
4693 | lang_get_regions (¤t_section->region, |
4694 | ¤t_section->lma_region, | |
4695 | memspec, lma_memspec, | |
4696 | current_section->load_base != 0); | |
252b5132 | 4697 | current_section->fill = fill; |
252b5132 RH |
4698 | current_section->phdrs = phdrs; |
4699 | stat_ptr = &statement_list; | |
4700 | } | |
4701 | ||
08da4cac KH |
4702 | /* Create an absolute symbol with the given name with the value of the |
4703 | address of first byte of the section named. | |
4704 | ||
4705 | If the symbol already exists, then do nothing. */ | |
252b5132 | 4706 | |
252b5132 RH |
4707 | void |
4708 | lang_abs_symbol_at_beginning_of (secname, name) | |
4709 | const char *secname; | |
4710 | const char *name; | |
4711 | { | |
4712 | struct bfd_link_hash_entry *h; | |
4713 | ||
b34976b6 | 4714 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, TRUE, TRUE); |
252b5132 RH |
4715 | if (h == (struct bfd_link_hash_entry *) NULL) |
4716 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
4717 | ||
4718 | if (h->type == bfd_link_hash_new | |
4719 | || h->type == bfd_link_hash_undefined) | |
4720 | { | |
4721 | asection *sec; | |
4722 | ||
4723 | h->type = bfd_link_hash_defined; | |
4724 | ||
4725 | sec = bfd_get_section_by_name (output_bfd, secname); | |
4726 | if (sec == (asection *) NULL) | |
4727 | h->u.def.value = 0; | |
4728 | else | |
4729 | h->u.def.value = bfd_get_section_vma (output_bfd, sec); | |
4730 | ||
4731 | h->u.def.section = bfd_abs_section_ptr; | |
4732 | } | |
4733 | } | |
4734 | ||
08da4cac KH |
4735 | /* Create an absolute symbol with the given name with the value of the |
4736 | address of the first byte after the end of the section named. | |
4737 | ||
4738 | If the symbol already exists, then do nothing. */ | |
252b5132 | 4739 | |
252b5132 RH |
4740 | void |
4741 | lang_abs_symbol_at_end_of (secname, name) | |
4742 | const char *secname; | |
4743 | const char *name; | |
4744 | { | |
4745 | struct bfd_link_hash_entry *h; | |
4746 | ||
b34976b6 | 4747 | h = bfd_link_hash_lookup (link_info.hash, name, TRUE, TRUE, TRUE); |
252b5132 RH |
4748 | if (h == (struct bfd_link_hash_entry *) NULL) |
4749 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
4750 | ||
4751 | if (h->type == bfd_link_hash_new | |
4752 | || h->type == bfd_link_hash_undefined) | |
4753 | { | |
4754 | asection *sec; | |
4755 | ||
4756 | h->type = bfd_link_hash_defined; | |
4757 | ||
4758 | sec = bfd_get_section_by_name (output_bfd, secname); | |
4759 | if (sec == (asection *) NULL) | |
4760 | h->u.def.value = 0; | |
4761 | else | |
4762 | h->u.def.value = (bfd_get_section_vma (output_bfd, sec) | |
4cbfc3ac TW |
4763 | + bfd_section_size (output_bfd, sec) / |
4764 | bfd_octets_per_byte (output_bfd)); | |
252b5132 RH |
4765 | |
4766 | h->u.def.section = bfd_abs_section_ptr; | |
4767 | } | |
4768 | } | |
4769 | ||
4770 | void | |
4771 | lang_statement_append (list, element, field) | |
08da4cac KH |
4772 | lang_statement_list_type *list; |
4773 | lang_statement_union_type *element; | |
4774 | lang_statement_union_type **field; | |
252b5132 RH |
4775 | { |
4776 | *(list->tail) = element; | |
4777 | list->tail = field; | |
4778 | } | |
4779 | ||
4780 | /* Set the output format type. -oformat overrides scripts. */ | |
4781 | ||
4782 | void | |
4783 | lang_add_output_format (format, big, little, from_script) | |
4784 | const char *format; | |
4785 | const char *big; | |
4786 | const char *little; | |
4787 | int from_script; | |
4788 | { | |
4789 | if (output_target == NULL || !from_script) | |
4790 | { | |
4791 | if (command_line.endian == ENDIAN_BIG | |
4792 | && big != NULL) | |
4793 | format = big; | |
4794 | else if (command_line.endian == ENDIAN_LITTLE | |
4795 | && little != NULL) | |
4796 | format = little; | |
4797 | ||
4798 | output_target = format; | |
4799 | } | |
4800 | } | |
4801 | ||
4802 | /* Enter a group. This creates a new lang_group_statement, and sets | |
4803 | stat_ptr to build new statements within the group. */ | |
4804 | ||
4805 | void | |
4806 | lang_enter_group () | |
4807 | { | |
4808 | lang_group_statement_type *g; | |
4809 | ||
4810 | g = new_stat (lang_group_statement, stat_ptr); | |
4811 | lang_list_init (&g->children); | |
4812 | stat_ptr = &g->children; | |
4813 | } | |
4814 | ||
4815 | /* Leave a group. This just resets stat_ptr to start writing to the | |
4816 | regular list of statements again. Note that this will not work if | |
4817 | groups can occur inside anything else which can adjust stat_ptr, | |
4818 | but currently they can't. */ | |
4819 | ||
4820 | void | |
4821 | lang_leave_group () | |
4822 | { | |
4823 | stat_ptr = &statement_list; | |
4824 | } | |
4825 | ||
4826 | /* Add a new program header. This is called for each entry in a PHDRS | |
4827 | command in a linker script. */ | |
4828 | ||
4829 | void | |
4830 | lang_new_phdr (name, type, filehdr, phdrs, at, flags) | |
4831 | const char *name; | |
4832 | etree_type *type; | |
b34976b6 AM |
4833 | bfd_boolean filehdr; |
4834 | bfd_boolean phdrs; | |
252b5132 RH |
4835 | etree_type *at; |
4836 | etree_type *flags; | |
4837 | { | |
4838 | struct lang_phdr *n, **pp; | |
4839 | ||
4840 | n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr)); | |
4841 | n->next = NULL; | |
4842 | n->name = name; | |
4843 | n->type = exp_get_value_int (type, 0, "program header type", | |
4844 | lang_final_phase_enum); | |
4845 | n->filehdr = filehdr; | |
4846 | n->phdrs = phdrs; | |
4847 | n->at = at; | |
4848 | n->flags = flags; | |
4849 | ||
4850 | for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next) | |
4851 | ; | |
4852 | *pp = n; | |
4853 | } | |
4854 | ||
4855 | /* Record the program header information in the output BFD. FIXME: We | |
4856 | should not be calling an ELF specific function here. */ | |
4857 | ||
4858 | static void | |
4859 | lang_record_phdrs () | |
4860 | { | |
4861 | unsigned int alc; | |
4862 | asection **secs; | |
4863 | struct lang_output_section_phdr_list *last; | |
4864 | struct lang_phdr *l; | |
4865 | lang_statement_union_type *u; | |
4866 | ||
4867 | alc = 10; | |
4868 | secs = (asection **) xmalloc (alc * sizeof (asection *)); | |
4869 | last = NULL; | |
4870 | for (l = lang_phdr_list; l != NULL; l = l->next) | |
4871 | { | |
4872 | unsigned int c; | |
4873 | flagword flags; | |
4874 | bfd_vma at; | |
4875 | ||
4876 | c = 0; | |
4877 | for (u = lang_output_section_statement.head; | |
4878 | u != NULL; | |
4879 | u = u->output_section_statement.next) | |
4880 | { | |
4881 | lang_output_section_statement_type *os; | |
4882 | struct lang_output_section_phdr_list *pl; | |
4883 | ||
4884 | os = &u->output_section_statement; | |
4885 | ||
4886 | pl = os->phdrs; | |
4887 | if (pl != NULL) | |
4888 | last = pl; | |
4889 | else | |
4890 | { | |
4891 | if (os->sectype == noload_section | |
4892 | || os->bfd_section == NULL | |
4893 | || (os->bfd_section->flags & SEC_ALLOC) == 0) | |
4894 | continue; | |
4895 | pl = last; | |
4896 | } | |
4897 | ||
4898 | if (os->bfd_section == NULL) | |
4899 | continue; | |
4900 | ||
4901 | for (; pl != NULL; pl = pl->next) | |
4902 | { | |
4903 | if (strcmp (pl->name, l->name) == 0) | |
4904 | { | |
4905 | if (c >= alc) | |
4906 | { | |
4907 | alc *= 2; | |
4908 | secs = ((asection **) | |
4909 | xrealloc (secs, alc * sizeof (asection *))); | |
4910 | } | |
4911 | secs[c] = os->bfd_section; | |
4912 | ++c; | |
b34976b6 | 4913 | pl->used = TRUE; |
252b5132 RH |
4914 | } |
4915 | } | |
4916 | } | |
4917 | ||
4918 | if (l->flags == NULL) | |
4919 | flags = 0; | |
4920 | else | |
4921 | flags = exp_get_vma (l->flags, 0, "phdr flags", | |
4922 | lang_final_phase_enum); | |
4923 | ||
4924 | if (l->at == NULL) | |
4925 | at = 0; | |
4926 | else | |
4927 | at = exp_get_vma (l->at, 0, "phdr load address", | |
4928 | lang_final_phase_enum); | |
4929 | ||
4930 | if (! bfd_record_phdr (output_bfd, l->type, | |
d1778b88 | 4931 | l->flags != NULL, flags, l->at != NULL, |
252b5132 RH |
4932 | at, l->filehdr, l->phdrs, c, secs)) |
4933 | einfo (_("%F%P: bfd_record_phdr failed: %E\n")); | |
4934 | } | |
4935 | ||
4936 | free (secs); | |
4937 | ||
4938 | /* Make sure all the phdr assignments succeeded. */ | |
4939 | for (u = lang_output_section_statement.head; | |
4940 | u != NULL; | |
4941 | u = u->output_section_statement.next) | |
4942 | { | |
4943 | struct lang_output_section_phdr_list *pl; | |
4944 | ||
4945 | if (u->output_section_statement.bfd_section == NULL) | |
4946 | continue; | |
4947 | ||
4948 | for (pl = u->output_section_statement.phdrs; | |
4949 | pl != NULL; | |
4950 | pl = pl->next) | |
4951 | if (! pl->used && strcmp (pl->name, "NONE") != 0) | |
4952 | einfo (_("%X%P: section `%s' assigned to non-existent phdr `%s'\n"), | |
4953 | u->output_section_statement.name, pl->name); | |
4954 | } | |
4955 | } | |
4956 | ||
4957 | /* Record a list of sections which may not be cross referenced. */ | |
4958 | ||
4959 | void | |
4960 | lang_add_nocrossref (l) | |
4961 | struct lang_nocrossref *l; | |
4962 | { | |
4963 | struct lang_nocrossrefs *n; | |
4964 | ||
4965 | n = (struct lang_nocrossrefs *) xmalloc (sizeof *n); | |
4966 | n->next = nocrossref_list; | |
4967 | n->list = l; | |
4968 | nocrossref_list = n; | |
4969 | ||
4970 | /* Set notice_all so that we get informed about all symbols. */ | |
b34976b6 | 4971 | link_info.notice_all = TRUE; |
252b5132 RH |
4972 | } |
4973 | \f | |
4974 | /* Overlay handling. We handle overlays with some static variables. */ | |
4975 | ||
4976 | /* The overlay virtual address. */ | |
4977 | static etree_type *overlay_vma; | |
4978 | ||
252b5132 RH |
4979 | /* An expression for the maximum section size seen so far. */ |
4980 | static etree_type *overlay_max; | |
4981 | ||
4982 | /* A list of all the sections in this overlay. */ | |
4983 | ||
89cdebba | 4984 | struct overlay_list { |
252b5132 RH |
4985 | struct overlay_list *next; |
4986 | lang_output_section_statement_type *os; | |
4987 | }; | |
4988 | ||
4989 | static struct overlay_list *overlay_list; | |
4990 | ||
4991 | /* Start handling an overlay. */ | |
4992 | ||
4993 | void | |
9f88b410 | 4994 | lang_enter_overlay (vma_expr) |
252b5132 | 4995 | etree_type *vma_expr; |
252b5132 RH |
4996 | { |
4997 | /* The grammar should prevent nested overlays from occurring. */ | |
9f88b410 | 4998 | ASSERT (overlay_vma == NULL && overlay_max == NULL); |
252b5132 RH |
4999 | |
5000 | overlay_vma = vma_expr; | |
252b5132 RH |
5001 | } |
5002 | ||
5003 | /* Start a section in an overlay. We handle this by calling | |
9f88b410 RS |
5004 | lang_enter_output_section_statement with the correct VMA. |
5005 | lang_leave_overlay sets up the LMA and memory regions. */ | |
252b5132 RH |
5006 | |
5007 | void | |
5008 | lang_enter_overlay_section (name) | |
5009 | const char *name; | |
5010 | { | |
5011 | struct overlay_list *n; | |
5012 | etree_type *size; | |
5013 | ||
5014 | lang_enter_output_section_statement (name, overlay_vma, normal_section, | |
9f88b410 | 5015 | 0, 0, 0, 0); |
252b5132 | 5016 | |
9f88b410 | 5017 | /* If this is the first section, then base the VMA of future |
252b5132 RH |
5018 | sections on this one. This will work correctly even if `.' is |
5019 | used in the addresses. */ | |
5020 | if (overlay_list == NULL) | |
9f88b410 | 5021 | overlay_vma = exp_nameop (ADDR, name); |
252b5132 RH |
5022 | |
5023 | /* Remember the section. */ | |
5024 | n = (struct overlay_list *) xmalloc (sizeof *n); | |
5025 | n->os = current_section; | |
5026 | n->next = overlay_list; | |
5027 | overlay_list = n; | |
5028 | ||
5029 | size = exp_nameop (SIZEOF, name); | |
5030 | ||
252b5132 RH |
5031 | /* Arrange to work out the maximum section end address. */ |
5032 | if (overlay_max == NULL) | |
5033 | overlay_max = size; | |
5034 | else | |
5035 | overlay_max = exp_binop (MAX_K, overlay_max, size); | |
5036 | } | |
5037 | ||
5038 | /* Finish a section in an overlay. There isn't any special to do | |
5039 | here. */ | |
5040 | ||
5041 | void | |
5042 | lang_leave_overlay_section (fill, phdrs) | |
2c382fb6 | 5043 | fill_type *fill; |
252b5132 RH |
5044 | struct lang_output_section_phdr_list *phdrs; |
5045 | { | |
5046 | const char *name; | |
5047 | char *clean, *s2; | |
5048 | const char *s1; | |
5049 | char *buf; | |
5050 | ||
5051 | name = current_section->name; | |
5052 | ||
9f88b410 RS |
5053 | /* For now, assume that "*default*" is the run-time memory region and |
5054 | that no load-time region has been specified. It doesn't really | |
5055 | matter what we say here, since lang_leave_overlay will override it. */ | |
5056 | lang_leave_output_section_statement (fill, "*default*", phdrs, 0); | |
252b5132 RH |
5057 | |
5058 | /* Define the magic symbols. */ | |
5059 | ||
5060 | clean = xmalloc (strlen (name) + 1); | |
5061 | s2 = clean; | |
5062 | for (s1 = name; *s1 != '\0'; s1++) | |
3882b010 | 5063 | if (ISALNUM (*s1) || *s1 == '_') |
252b5132 RH |
5064 | *s2++ = *s1; |
5065 | *s2 = '\0'; | |
5066 | ||
5067 | buf = xmalloc (strlen (clean) + sizeof "__load_start_"); | |
5068 | sprintf (buf, "__load_start_%s", clean); | |
5069 | lang_add_assignment (exp_assop ('=', buf, | |
5070 | exp_nameop (LOADADDR, name))); | |
5071 | ||
5072 | buf = xmalloc (strlen (clean) + sizeof "__load_stop_"); | |
5073 | sprintf (buf, "__load_stop_%s", clean); | |
5074 | lang_add_assignment (exp_assop ('=', buf, | |
5075 | exp_binop ('+', | |
5076 | exp_nameop (LOADADDR, name), | |
5077 | exp_nameop (SIZEOF, name)))); | |
5078 | ||
5079 | free (clean); | |
5080 | } | |
5081 | ||
5082 | /* Finish an overlay. If there are any overlay wide settings, this | |
5083 | looks through all the sections in the overlay and sets them. */ | |
5084 | ||
5085 | void | |
9f88b410 RS |
5086 | lang_leave_overlay (lma_expr, nocrossrefs, fill, memspec, phdrs, lma_memspec) |
5087 | etree_type *lma_expr; | |
5088 | int nocrossrefs; | |
2c382fb6 | 5089 | fill_type *fill; |
252b5132 RH |
5090 | const char *memspec; |
5091 | struct lang_output_section_phdr_list *phdrs; | |
562d3460 | 5092 | const char *lma_memspec; |
252b5132 RH |
5093 | { |
5094 | lang_memory_region_type *region; | |
562d3460 | 5095 | lang_memory_region_type *lma_region; |
252b5132 RH |
5096 | struct overlay_list *l; |
5097 | struct lang_nocrossref *nocrossref; | |
5098 | ||
ee3cc2e2 RS |
5099 | lang_get_regions (®ion, &lma_region, |
5100 | memspec, lma_memspec, | |
5101 | lma_expr != 0); | |
562d3460 | 5102 | |
252b5132 RH |
5103 | nocrossref = NULL; |
5104 | ||
9f88b410 RS |
5105 | /* After setting the size of the last section, set '.' to end of the |
5106 | overlay region. */ | |
5107 | if (overlay_list != NULL) | |
5108 | overlay_list->os->update_dot_tree | |
5109 | = exp_assop ('=', ".", exp_binop ('+', overlay_vma, overlay_max)); | |
5110 | ||
252b5132 RH |
5111 | l = overlay_list; |
5112 | while (l != NULL) | |
5113 | { | |
5114 | struct overlay_list *next; | |
5115 | ||
2c382fb6 | 5116 | if (fill != (fill_type *) 0 && l->os->fill == (fill_type *) 0) |
252b5132 | 5117 | l->os->fill = fill; |
1545243b | 5118 | |
9f88b410 RS |
5119 | l->os->region = region; |
5120 | l->os->lma_region = lma_region; | |
5121 | ||
5122 | /* The first section has the load address specified in the | |
5123 | OVERLAY statement. The rest are worked out from that. | |
5124 | The base address is not needed (and should be null) if | |
5125 | an LMA region was specified. */ | |
5126 | if (l->next == 0) | |
5127 | l->os->load_base = lma_expr; | |
5128 | else if (lma_region == 0) | |
5129 | l->os->load_base = exp_binop ('+', | |
5130 | exp_nameop (LOADADDR, l->next->os->name), | |
5131 | exp_nameop (SIZEOF, l->next->os->name)); | |
1545243b | 5132 | |
252b5132 RH |
5133 | if (phdrs != NULL && l->os->phdrs == NULL) |
5134 | l->os->phdrs = phdrs; | |
5135 | ||
9f88b410 | 5136 | if (nocrossrefs) |
252b5132 RH |
5137 | { |
5138 | struct lang_nocrossref *nc; | |
5139 | ||
5140 | nc = (struct lang_nocrossref *) xmalloc (sizeof *nc); | |
5141 | nc->name = l->os->name; | |
5142 | nc->next = nocrossref; | |
5143 | nocrossref = nc; | |
5144 | } | |
5145 | ||
5146 | next = l->next; | |
5147 | free (l); | |
5148 | l = next; | |
5149 | } | |
5150 | ||
5151 | if (nocrossref != NULL) | |
5152 | lang_add_nocrossref (nocrossref); | |
5153 | ||
252b5132 | 5154 | overlay_vma = NULL; |
252b5132 RH |
5155 | overlay_list = NULL; |
5156 | overlay_max = NULL; | |
5157 | } | |
5158 | \f | |
5159 | /* Version handling. This is only useful for ELF. */ | |
5160 | ||
5161 | /* This global variable holds the version tree that we build. */ | |
5162 | ||
5163 | struct bfd_elf_version_tree *lang_elf_version_info; | |
5164 | ||
5165 | static int | |
5166 | lang_vers_match_lang_c (expr, sym) | |
5167 | struct bfd_elf_version_expr *expr; | |
5168 | const char *sym; | |
5169 | { | |
5170 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') | |
5171 | return 1; | |
5172 | return fnmatch (expr->pattern, sym, 0) == 0; | |
5173 | } | |
5174 | ||
5175 | static int | |
5176 | lang_vers_match_lang_cplusplus (expr, sym) | |
5177 | struct bfd_elf_version_expr *expr; | |
5178 | const char *sym; | |
5179 | { | |
5180 | char *alt_sym; | |
5181 | int result; | |
5182 | ||
5183 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') | |
5184 | return 1; | |
5185 | ||
08da4cac | 5186 | alt_sym = cplus_demangle (sym, /* DMGL_NO_TPARAMS */ 0); |
252b5132 RH |
5187 | if (!alt_sym) |
5188 | { | |
5189 | /* cplus_demangle (also) returns NULL when it is not a C++ symbol. | |
b34976b6 | 5190 | Should we early out FALSE in this case? */ |
252b5132 RH |
5191 | result = fnmatch (expr->pattern, sym, 0) == 0; |
5192 | } | |
5193 | else | |
5194 | { | |
5195 | result = fnmatch (expr->pattern, alt_sym, 0) == 0; | |
5196 | free (alt_sym); | |
5197 | } | |
5198 | ||
5199 | return result; | |
5200 | } | |
5201 | ||
5202 | static int | |
5203 | lang_vers_match_lang_java (expr, sym) | |
5204 | struct bfd_elf_version_expr *expr; | |
5205 | const char *sym; | |
5206 | { | |
5207 | char *alt_sym; | |
5208 | int result; | |
5209 | ||
5210 | if (expr->pattern[0] == '*' && expr->pattern[1] == '\0') | |
5211 | return 1; | |
5212 | ||
08da4cac | 5213 | alt_sym = cplus_demangle (sym, DMGL_JAVA); |
252b5132 RH |
5214 | if (!alt_sym) |
5215 | { | |
5216 | /* cplus_demangle (also) returns NULL when it is not a Java symbol. | |
b34976b6 | 5217 | Should we early out FALSE in this case? */ |
252b5132 RH |
5218 | result = fnmatch (expr->pattern, sym, 0) == 0; |
5219 | } | |
5220 | else | |
5221 | { | |
5222 | result = fnmatch (expr->pattern, alt_sym, 0) == 0; | |
5223 | free (alt_sym); | |
5224 | } | |
5225 | ||
5226 | return result; | |
5227 | } | |
5228 | ||
5229 | /* This is called for each variable name or match expression. */ | |
5230 | ||
5231 | struct bfd_elf_version_expr * | |
313e35ee | 5232 | lang_new_vers_pattern (orig, new, lang) |
252b5132 RH |
5233 | struct bfd_elf_version_expr *orig; |
5234 | const char *new; | |
5235 | const char *lang; | |
5236 | { | |
5237 | struct bfd_elf_version_expr *ret; | |
5238 | ||
5239 | ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret); | |
5240 | ret->next = orig; | |
5241 | ret->pattern = new; | |
31941635 L |
5242 | ret->symver = 0; |
5243 | ret->script = 0; | |
252b5132 RH |
5244 | |
5245 | if (lang == NULL || strcasecmp (lang, "C") == 0) | |
5246 | ret->match = lang_vers_match_lang_c; | |
5247 | else if (strcasecmp (lang, "C++") == 0) | |
5248 | ret->match = lang_vers_match_lang_cplusplus; | |
5249 | else if (strcasecmp (lang, "Java") == 0) | |
5250 | ret->match = lang_vers_match_lang_java; | |
5251 | else | |
5252 | { | |
5253 | einfo (_("%X%P: unknown language `%s' in version information\n"), | |
5254 | lang); | |
5255 | ret->match = lang_vers_match_lang_c; | |
5256 | } | |
5257 | ||
fac1652d | 5258 | return ldemul_new_vers_pattern (ret); |
252b5132 RH |
5259 | } |
5260 | ||
5261 | /* This is called for each set of variable names and match | |
5262 | expressions. */ | |
5263 | ||
5264 | struct bfd_elf_version_tree * | |
5265 | lang_new_vers_node (globals, locals) | |
5266 | struct bfd_elf_version_expr *globals; | |
5267 | struct bfd_elf_version_expr *locals; | |
5268 | { | |
5269 | struct bfd_elf_version_tree *ret; | |
5270 | ||
5271 | ret = (struct bfd_elf_version_tree *) xmalloc (sizeof *ret); | |
5272 | ret->next = NULL; | |
5273 | ret->name = NULL; | |
5274 | ret->vernum = 0; | |
5275 | ret->globals = globals; | |
5276 | ret->locals = locals; | |
5277 | ret->deps = NULL; | |
5278 | ret->name_indx = (unsigned int) -1; | |
5279 | ret->used = 0; | |
5280 | return ret; | |
5281 | } | |
5282 | ||
5283 | /* This static variable keeps track of version indices. */ | |
5284 | ||
5285 | static int version_index; | |
5286 | ||
5287 | /* This is called when we know the name and dependencies of the | |
5288 | version. */ | |
5289 | ||
5290 | void | |
5291 | lang_register_vers_node (name, version, deps) | |
5292 | const char *name; | |
5293 | struct bfd_elf_version_tree *version; | |
5294 | struct bfd_elf_version_deps *deps; | |
5295 | { | |
5296 | struct bfd_elf_version_tree *t, **pp; | |
5297 | struct bfd_elf_version_expr *e1; | |
5298 | ||
6b9b879a JJ |
5299 | if (name == NULL) |
5300 | name = ""; | |
5301 | ||
5302 | if ((name[0] == '\0' && lang_elf_version_info != NULL) | |
5303 | || (lang_elf_version_info && lang_elf_version_info->name[0] == '\0')) | |
5304 | { | |
5305 | einfo (_("%X%P: anonymous version tag cannot be combined with other version tags\n")); | |
5ed6aba4 | 5306 | free (version); |
6b9b879a JJ |
5307 | return; |
5308 | } | |
5309 | ||
252b5132 RH |
5310 | /* Make sure this node has a unique name. */ |
5311 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5312 | if (strcmp (t->name, name) == 0) | |
5313 | einfo (_("%X%P: duplicate version tag `%s'\n"), name); | |
5314 | ||
5315 | /* Check the global and local match names, and make sure there | |
5316 | aren't any duplicates. */ | |
5317 | ||
5318 | for (e1 = version->globals; e1 != NULL; e1 = e1->next) | |
5319 | { | |
5320 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5321 | { | |
5322 | struct bfd_elf_version_expr *e2; | |
5323 | ||
5324 | for (e2 = t->locals; e2 != NULL; e2 = e2->next) | |
5325 | if (strcmp (e1->pattern, e2->pattern) == 0) | |
5326 | einfo (_("%X%P: duplicate expression `%s' in version information\n"), | |
5327 | e1->pattern); | |
5328 | } | |
5329 | } | |
5330 | ||
5331 | for (e1 = version->locals; e1 != NULL; e1 = e1->next) | |
5332 | { | |
5333 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5334 | { | |
5335 | struct bfd_elf_version_expr *e2; | |
5336 | ||
5337 | for (e2 = t->globals; e2 != NULL; e2 = e2->next) | |
5338 | if (strcmp (e1->pattern, e2->pattern) == 0) | |
5339 | einfo (_("%X%P: duplicate expression `%s' in version information\n"), | |
5340 | e1->pattern); | |
5341 | } | |
5342 | } | |
5343 | ||
5344 | version->deps = deps; | |
5345 | version->name = name; | |
6b9b879a JJ |
5346 | if (name[0] != '\0') |
5347 | { | |
5348 | ++version_index; | |
5349 | version->vernum = version_index; | |
5350 | } | |
5351 | else | |
5352 | version->vernum = 0; | |
252b5132 RH |
5353 | |
5354 | for (pp = &lang_elf_version_info; *pp != NULL; pp = &(*pp)->next) | |
5355 | ; | |
5356 | *pp = version; | |
5357 | } | |
5358 | ||
5359 | /* This is called when we see a version dependency. */ | |
5360 | ||
5361 | struct bfd_elf_version_deps * | |
5362 | lang_add_vers_depend (list, name) | |
5363 | struct bfd_elf_version_deps *list; | |
5364 | const char *name; | |
5365 | { | |
5366 | struct bfd_elf_version_deps *ret; | |
5367 | struct bfd_elf_version_tree *t; | |
5368 | ||
5369 | ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret); | |
5370 | ret->next = list; | |
5371 | ||
5372 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
5373 | { | |
5374 | if (strcmp (t->name, name) == 0) | |
5375 | { | |
5376 | ret->version_needed = t; | |
5377 | return ret; | |
5378 | } | |
5379 | } | |
5380 | ||
5381 | einfo (_("%X%P: unable to find version dependency `%s'\n"), name); | |
5382 | ||
5383 | return ret; | |
5384 | } | |
5385 | ||
5386 | static void | |
5387 | lang_do_version_exports_section () | |
5388 | { | |
5389 | struct bfd_elf_version_expr *greg = NULL, *lreg; | |
5390 | ||
5391 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
5392 | { | |
5393 | asection *sec = bfd_get_section_by_name (is->the_bfd, ".exports"); | |
5394 | char *contents, *p; | |
5395 | bfd_size_type len; | |
5396 | ||
5397 | if (sec == NULL) | |
b7a26f91 | 5398 | continue; |
252b5132 RH |
5399 | |
5400 | len = bfd_section_size (is->the_bfd, sec); | |
5401 | contents = xmalloc (len); | |
5402 | if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len)) | |
6f9efd97 | 5403 | einfo (_("%X%P: unable to read .exports section contents\n"), sec); |
252b5132 RH |
5404 | |
5405 | p = contents; | |
89cdebba | 5406 | while (p < contents + len) |
252b5132 | 5407 | { |
313e35ee | 5408 | greg = lang_new_vers_pattern (greg, p, NULL); |
252b5132 RH |
5409 | p = strchr (p, '\0') + 1; |
5410 | } | |
5411 | ||
5412 | /* Do not free the contents, as we used them creating the regex. */ | |
5413 | ||
5414 | /* Do not include this section in the link. */ | |
5415 | bfd_set_section_flags (is->the_bfd, sec, | |
5416 | bfd_get_section_flags (is->the_bfd, sec) | SEC_EXCLUDE); | |
5417 | } | |
5418 | ||
313e35ee | 5419 | lreg = lang_new_vers_pattern (NULL, "*", NULL); |
252b5132 RH |
5420 | lang_register_vers_node (command_line.version_exports_section, |
5421 | lang_new_vers_node (greg, lreg), NULL); | |
5422 | } | |
577a0623 AM |
5423 | |
5424 | void | |
5425 | lang_add_unique (name) | |
5426 | const char *name; | |
5427 | { | |
5428 | struct unique_sections *ent; | |
5429 | ||
5430 | for (ent = unique_section_list; ent; ent = ent->next) | |
5431 | if (strcmp (ent->name, name) == 0) | |
5432 | return; | |
5433 | ||
5434 | ent = (struct unique_sections *) xmalloc (sizeof *ent); | |
5435 | ent->name = xstrdup (name); | |
5436 | ent->next = unique_section_list; | |
5437 | unique_section_list = ent; | |
5438 | } |