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2fa0b342 DHW |
1 | /* Copyright (C) 1991 Free Software Foundation, Inc. |
2 | ||
3 | This file is part of GLD, the Gnu Linker. | |
4 | ||
5 | GLD is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 1, or (at your option) | |
8 | any later version. | |
9 | ||
10 | GLD is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with GLD; see the file COPYING. If not, write to | |
17 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
18 | ||
19 | /* $Id$ | |
20 | * | |
2fa0b342 DHW |
21 | */ |
22 | ||
23 | ||
24 | ||
25 | #include "sysdep.h" | |
26 | #include "bfd.h" | |
27 | ||
28 | #include "ld.h" | |
29 | #include "ldmain.h" | |
30 | #include "ldsym.h" | |
31 | #include "ldgram.tab.h" | |
32 | #include "ldmisc.h" | |
33 | #include "ldlang.h" | |
34 | #include "ldexp.h" | |
35 | #include "ld-emul.h" | |
36 | #include "ldlex.h" | |
37 | ||
38 | /* EXPORTS */ | |
39 | ||
1418c83b | 40 | extern char *default_target; |
2fa0b342 DHW |
41 | |
42 | extern unsigned int undefined_global_sym_count; | |
43 | ||
1418c83b | 44 | static CONST char *startup_file; |
2fa0b342 DHW |
45 | static lang_input_statement_type *first_file; |
46 | lang_statement_list_type statement_list; | |
47 | lang_statement_list_type *stat_ptr = &statement_list; | |
48 | lang_statement_list_type lang_output_section_statement; | |
49 | lang_statement_list_type input_file_chain; | |
50 | lang_statement_list_type file_chain; | |
51 | extern char *current_file; | |
52 | static boolean placed_commons = false; | |
53 | ||
54 | boolean lang_float_flag; | |
55 | ||
56 | static lang_output_section_statement_type *default_common_section; | |
57 | ||
58 | ||
59 | /* FORWARDS */ | |
60 | PROTO(static void, print_statements,(void)); | |
61 | PROTO(static void, print_statement,(lang_statement_union_type *, | |
62 | lang_output_section_statement_type *)); | |
63 | ||
64 | ||
65 | ||
66 | /* EXPORTS */ | |
67 | boolean lang_has_input_file = false; | |
68 | ||
69 | ||
70 | extern bfd *output_bfd; | |
71 | size_t largest_section; | |
72 | ||
73 | ||
74 | extern enum bfd_architecture ldfile_output_architecture; | |
75 | extern unsigned long ldfile_output_machine; | |
76 | extern char *ldfile_output_machine_name; | |
77 | ||
78 | ||
79 | extern ldsym_type *symbol_head; | |
80 | ||
81 | bfd_vma print_dot; | |
82 | unsigned int commons_pending; | |
83 | ||
84 | ||
85 | ||
86 | ||
87 | extern args_type command_line; | |
88 | extern ld_config_type config; | |
89 | ||
1418c83b | 90 | CONST char *entry_symbol; |
2fa0b342 DHW |
91 | |
92 | ||
93 | ||
94 | lang_output_section_statement_type *create_object_symbols; | |
95 | ||
96 | extern boolean had_script; | |
97 | static boolean map_option_f; | |
98 | ||
99 | ||
100 | boolean had_output_filename = false; | |
101 | extern boolean write_map; | |
102 | ||
103 | ||
104 | ||
105 | ||
097879bc SC |
106 | /* LOCALS */ |
107 | static CONST char *current_target; | |
108 | static CONST char *output_target; | |
2fa0b342 DHW |
109 | size_t longest_section_name = 8; |
110 | ||
111 | ||
112 | lang_input_statement_type *script_file; | |
113 | ||
114 | section_userdata_type common_section_userdata; | |
115 | asection common_section; | |
116 | ||
117 | #ifdef __STDC__ | |
118 | #define cat(a,b) a##b | |
119 | #else | |
120 | #define cat(a,b) a/**/b | |
121 | #endif | |
122 | ||
123 | #define new_stat(x,y) (cat(x,_type)*) new_statement(cat(x,_enum), sizeof(cat(x,_type)),y) | |
124 | ||
125 | #define outside_section_address(q) ( (q)->output_offset + (q)->output_section->vma) | |
126 | ||
127 | #define outside_symbol_address(q) ((q)->value + outside_section_address(q->section)) | |
128 | ||
129 | boolean option_longmap = false; | |
130 | ||
1418c83b SC |
131 | /*---------------------------------------------------------------------- |
132 | lang_for_each_statement walks the parse tree and calls the provided | |
133 | function for each node | |
134 | */ | |
135 | ||
136 | static void | |
137 | DEFUN(lang_for_each_statement_worker,(func, s), | |
138 | void (*func)() AND | |
139 | lang_statement_union_type *s) | |
140 | { | |
141 | for (; s != (lang_statement_union_type *)NULL ; s = s->next) | |
142 | { | |
143 | func(s); | |
144 | ||
145 | switch (s->header.type) { | |
146 | case lang_output_section_statement_enum: | |
147 | lang_for_each_statement_worker | |
148 | (func, | |
149 | s->output_section_statement.children.head); | |
150 | break; | |
151 | case lang_wild_statement_enum: | |
152 | lang_for_each_statement_worker | |
153 | (func, | |
154 | s->wild_statement.children.head); | |
155 | break; | |
156 | case lang_data_statement_enum: | |
157 | case lang_object_symbols_statement_enum: | |
158 | case lang_output_statement_enum: | |
159 | case lang_target_statement_enum: | |
160 | case lang_input_section_enum: | |
161 | case lang_input_statement_enum: | |
162 | case lang_fill_statement_enum: | |
163 | case lang_assignment_statement_enum: | |
164 | case lang_padding_statement_enum: | |
165 | case lang_address_statement_enum: | |
166 | break; | |
167 | default: | |
168 | FAIL(); | |
169 | break; | |
170 | } | |
171 | } | |
172 | } | |
173 | ||
174 | void | |
175 | DEFUN(lang_for_each_statement,(func), | |
176 | void (*func)()) | |
177 | { | |
178 | lang_for_each_statement_worker(func, | |
179 | statement_list.head); | |
180 | } | |
181 | /*----------------------------------------------------------------------*/ | |
182 | static void | |
183 | DEFUN(lang_list_init,(list), | |
184 | lang_statement_list_type *list) | |
2fa0b342 DHW |
185 | { |
186 | list->head = (lang_statement_union_type *)NULL; | |
187 | list->tail = &list->head; | |
188 | } | |
189 | ||
1418c83b SC |
190 | /*---------------------------------------------------------------------- |
191 | Functions to print the link map | |
192 | */ | |
193 | ||
2fa0b342 | 194 | static void |
1418c83b SC |
195 | DEFUN(print_section,(name), |
196 | CONST char *CONST name) | |
2fa0b342 DHW |
197 | { |
198 | printf("%*s", -longest_section_name, name); | |
199 | } | |
200 | static void | |
1418c83b | 201 | DEFUN_VOID(print_space) |
2fa0b342 DHW |
202 | { |
203 | printf(" "); | |
204 | } | |
205 | static void | |
1418c83b | 206 | DEFUN_VOID(print_nl) |
2fa0b342 DHW |
207 | { |
208 | printf("\n"); | |
209 | } | |
210 | static void | |
1418c83b SC |
211 | DEFUN(print_address,(value), |
212 | bfd_vma value) | |
2fa0b342 DHW |
213 | { |
214 | printf("%8lx", value); | |
215 | } | |
216 | static void | |
1418c83b SC |
217 | DEFUN(print_size,(value), |
218 | size_t value) | |
2fa0b342 DHW |
219 | { |
220 | printf("%5x", (unsigned)value); | |
221 | } | |
222 | static void | |
1418c83b SC |
223 | DEFUN(print_alignment,(value), |
224 | unsigned int value) | |
2fa0b342 DHW |
225 | { |
226 | printf("2**%2u",value); | |
227 | } | |
1418c83b | 228 | |
2fa0b342 | 229 | static void |
1418c83b SC |
230 | DEFUN(print_fill,(value), |
231 | fill_type value) | |
2fa0b342 DHW |
232 | { |
233 | printf("%04x",(unsigned)value); | |
234 | } | |
235 | ||
1418c83b SC |
236 | /*---------------------------------------------------------------------- |
237 | ||
238 | build a new statement node for the parse tree | |
239 | ||
240 | */ | |
2fa0b342 DHW |
241 | |
242 | static | |
1418c83b SC |
243 | lang_statement_union_type* |
244 | DEFUN(new_statement,(type, size, list), | |
245 | enum statement_enum type AND | |
246 | size_t size AND | |
247 | lang_statement_list_type *list) | |
2fa0b342 DHW |
248 | { |
249 | lang_statement_union_type *new = (lang_statement_union_type *) | |
250 | ldmalloc(size); | |
251 | new->header.type = type; | |
252 | new->header.next = (lang_statement_union_type *)NULL; | |
1418c83b | 253 | lang_statement_append(list, new, &new->header.next); |
2fa0b342 DHW |
254 | return new; |
255 | } | |
256 | ||
1418c83b SC |
257 | /* |
258 | Build a new input file node for the language. There are several ways | |
259 | in which we treat an input file, eg, we only look at symbols, or | |
260 | prefix it with a -l etc. | |
261 | ||
262 | We can be supplied with requests for input files more than once; | |
263 | they may, for example be split over serveral lines like foo.o(.text) | |
264 | foo.o(.data) etc, so when asked for a file we check that we havn't | |
265 | got it already so we don't duplicate the bfd. | |
266 | ||
267 | */ | |
2fa0b342 | 268 | static lang_input_statement_type * |
1418c83b SC |
269 | DEFUN(new_afile, (name, file_type, target), |
270 | CONST char *CONST name AND | |
271 | CONST lang_input_file_enum_type file_type AND | |
272 | CONST char *CONST target) | |
2fa0b342 DHW |
273 | { |
274 | lang_input_statement_type *p = new_stat(lang_input_statement, | |
275 | stat_ptr); | |
276 | lang_has_input_file = true; | |
277 | p->target = target; | |
278 | switch (file_type) { | |
279 | case lang_input_file_is_symbols_only_enum: | |
280 | p->filename = name; | |
281 | p->is_archive =false; | |
282 | p->real = true; | |
283 | p->local_sym_name= name; | |
284 | p->just_syms_flag = true; | |
285 | p->search_dirs_flag = false; | |
286 | break; | |
287 | case lang_input_file_is_fake_enum: | |
288 | p->filename = name; | |
289 | p->is_archive =false; | |
290 | p->real = false; | |
291 | p->local_sym_name= name; | |
292 | p->just_syms_flag = false; | |
293 | p->search_dirs_flag =false; | |
2fa0b342 DHW |
294 | break; |
295 | case lang_input_file_is_l_enum: | |
296 | p->is_archive = true; | |
297 | p->filename = name; | |
298 | p->real = true; | |
299 | p->local_sym_name = concat("-l",name,""); | |
300 | p->just_syms_flag = false; | |
301 | p->search_dirs_flag = true; | |
302 | break; | |
2fa0b342 DHW |
303 | case lang_input_file_is_search_file_enum: |
304 | case lang_input_file_is_marker_enum: | |
305 | p->filename = name; | |
306 | p->is_archive =false; | |
307 | p->real = true; | |
308 | p->local_sym_name= name; | |
309 | p->just_syms_flag = false; | |
310 | p->search_dirs_flag =true; | |
311 | break; | |
2fa0b342 DHW |
312 | case lang_input_file_is_file_enum: |
313 | p->filename = name; | |
314 | p->is_archive =false; | |
315 | p->real = true; | |
316 | p->local_sym_name= name; | |
317 | p->just_syms_flag = false; | |
318 | p->search_dirs_flag =false; | |
319 | break; | |
2fa0b342 DHW |
320 | default: |
321 | FAIL(); | |
322 | } | |
323 | p->asymbols = (asymbol **)NULL; | |
324 | p->superfile = (lang_input_statement_type *)NULL; | |
2fa0b342 DHW |
325 | p->next_real_file = (lang_statement_union_type*)NULL; |
326 | p->next = (lang_statement_union_type*)NULL; | |
327 | p->symbol_count = 0; | |
328 | p->common_output_section = (asection *)NULL; | |
2fa0b342 DHW |
329 | lang_statement_append(&input_file_chain, |
330 | (lang_statement_union_type *)p, | |
331 | &p->next_real_file); | |
332 | return p; | |
333 | } | |
334 | ||
1418c83b SC |
335 | |
336 | ||
2fa0b342 | 337 | lang_input_statement_type * |
1418c83b SC |
338 | DEFUN(lang_add_input_file,(name, file_type, target), |
339 | char *name AND | |
340 | lang_input_file_enum_type file_type AND | |
341 | char *target) | |
2fa0b342 DHW |
342 | { |
343 | /* Look it up or build a new one */ | |
1418c83b SC |
344 | lang_has_input_file = true; |
345 | #if 0 | |
2fa0b342 DHW |
346 | lang_input_statement_type *p; |
347 | ||
348 | for (p = (lang_input_statement_type *)input_file_chain.head; | |
349 | p != (lang_input_statement_type *)NULL; | |
350 | p = (lang_input_statement_type *)(p->next_real_file)) | |
1418c83b SC |
351 | { |
352 | /* Sometimes we have incomplete entries in here */ | |
353 | if (p->filename != (char *)NULL) { | |
354 | if(strcmp(name,p->filename) == 0) return p; | |
355 | } | |
356 | ||
357 | } | |
358 | #endif | |
2fa0b342 DHW |
359 | return new_afile(name, file_type, target); |
360 | } | |
361 | ||
362 | ||
1418c83b | 363 | /* Build enough state so that the parser can build its tree */ |
2fa0b342 | 364 | void |
1418c83b | 365 | DEFUN_VOID(lang_init) |
2fa0b342 DHW |
366 | { |
367 | ||
368 | stat_ptr= &statement_list; | |
369 | lang_list_init(stat_ptr); | |
370 | ||
371 | lang_list_init(&input_file_chain); | |
372 | lang_list_init(&lang_output_section_statement); | |
373 | lang_list_init(&file_chain); | |
374 | first_file = lang_add_input_file((char *)NULL, | |
375 | lang_input_file_is_marker_enum, | |
376 | (char *)NULL); | |
2fa0b342 DHW |
377 | } |
378 | ||
2fa0b342 | 379 | |
1418c83b SC |
380 | /*---------------------------------------------------------------------- |
381 | A region is an area of memory declared with the | |
382 | MEMORY { name:org=exp, len=exp ... } | |
383 | syntax. | |
2fa0b342 | 384 | |
1418c83b | 385 | We maintain a list of all the regions here |
2fa0b342 | 386 | |
1418c83b SC |
387 | If no regions are specified in the script, then the default is used |
388 | which is created when looked up to be the entire data space | |
2fa0b342 DHW |
389 | */ |
390 | ||
391 | static lang_memory_region_type *lang_memory_region_list; | |
392 | static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list; | |
393 | ||
394 | lang_memory_region_type * | |
1418c83b SC |
395 | DEFUN(lang_memory_region_lookup,(name), |
396 | CONST char *CONST name) | |
2fa0b342 DHW |
397 | { |
398 | ||
1418c83b SC |
399 | lang_memory_region_type *p = lang_memory_region_list; |
400 | for (p = lang_memory_region_list; | |
401 | p != ( lang_memory_region_type *)NULL; | |
402 | p = p->next) { | |
403 | if (strcmp(p->name, name) == 0) { | |
404 | return p; | |
2fa0b342 | 405 | } |
1418c83b SC |
406 | } |
407 | if (strcmp(name,"*default*")==0) { | |
408 | /* This is the default region, dig out first one on the list */ | |
409 | if (lang_memory_region_list != (lang_memory_region_type*)NULL){ | |
410 | return lang_memory_region_list; | |
2fa0b342 | 411 | } |
1418c83b | 412 | } |
2fa0b342 | 413 | { |
1418c83b SC |
414 | lang_memory_region_type *new = |
415 | (lang_memory_region_type *)ldmalloc(sizeof(lang_memory_region_type)); | |
416 | new->name = buystring(name); | |
417 | new->next = (lang_memory_region_type *)NULL; | |
418 | ||
419 | *lang_memory_region_list_tail = new; | |
420 | lang_memory_region_list_tail = &new->next; | |
421 | new->origin = 0; | |
422 | new->length = ~0; | |
423 | new->current = 0; | |
424 | return new; | |
2fa0b342 DHW |
425 | } |
426 | } | |
427 | ||
428 | ||
2fa0b342 | 429 | lang_output_section_statement_type * |
1418c83b SC |
430 | DEFUN(lang_output_section_find,(name), |
431 | CONST char * CONST name) | |
2fa0b342 DHW |
432 | { |
433 | lang_statement_union_type *u; | |
434 | lang_output_section_statement_type *lookup; | |
435 | ||
436 | for (u = lang_output_section_statement.head; | |
437 | u != (lang_statement_union_type *)NULL; | |
438 | u = lookup->next) | |
1418c83b SC |
439 | { |
440 | lookup = &u->output_section_statement; | |
441 | if (strcmp(name, lookup->name)==0) { | |
442 | return lookup; | |
443 | } | |
2fa0b342 | 444 | } |
2fa0b342 DHW |
445 | return (lang_output_section_statement_type *)NULL; |
446 | } | |
447 | ||
448 | lang_output_section_statement_type * | |
1418c83b SC |
449 | DEFUN(lang_output_section_statement_lookup,(name), |
450 | CONST char * CONST name) | |
2fa0b342 DHW |
451 | { |
452 | lang_output_section_statement_type *lookup; | |
453 | lookup =lang_output_section_find(name); | |
454 | if (lookup == (lang_output_section_statement_type *)NULL) { | |
455 | ||
456 | lookup =(lang_output_section_statement_type *) | |
457 | new_stat(lang_output_section_statement, stat_ptr); | |
458 | lookup->region = (lang_memory_region_type *)NULL; | |
459 | lookup->fill = 0; | |
460 | lookup->block_value = 1; | |
461 | lookup->name = name; | |
462 | ||
463 | lookup->next = (lang_statement_union_type*)NULL; | |
464 | lookup->bfd_section = (asection *)NULL; | |
465 | lookup->processed = false; | |
466 | lookup->addr_tree = (etree_type *)NULL; | |
467 | lang_list_init(&lookup->children); | |
468 | ||
469 | lang_statement_append(&lang_output_section_statement, | |
470 | (lang_statement_union_type *)lookup, | |
471 | &lookup->next); | |
472 | } | |
473 | return lookup; | |
474 | } | |
475 | ||
476 | ||
477 | ||
478 | ||
479 | ||
480 | static void | |
1418c83b SC |
481 | DEFUN(print_flags, (outfile, ignore_flags), |
482 | FILE *outfile AND | |
483 | lang_section_flags_type *ignore_flags) | |
2fa0b342 DHW |
484 | { |
485 | fprintf(outfile,"("); | |
486 | #if 0 | |
487 | if (flags->flag_read) fprintf(outfile,"R"); | |
488 | if (flags->flag_write) fprintf(outfile,"W"); | |
489 | if (flags->flag_executable) fprintf(outfile,"X"); | |
490 | if (flags->flag_loadable) fprintf(outfile,"L"); | |
491 | #endif | |
492 | fprintf(outfile,")"); | |
493 | } | |
494 | ||
495 | void | |
1418c83b SC |
496 | DEFUN(lang_map,(outfile), |
497 | FILE *outfile) | |
2fa0b342 DHW |
498 | { |
499 | lang_memory_region_type *m; | |
500 | fprintf(outfile,"**MEMORY CONFIGURATION**\n\n"); | |
501 | ||
502 | fprintf(outfile,"name\t\torigin\t\tlength\t\tattributes\n"); | |
503 | for (m = lang_memory_region_list; | |
504 | m != (lang_memory_region_type *)NULL; | |
505 | m = m->next) | |
506 | { | |
507 | fprintf(outfile,"%-16s", m->name); | |
508 | ||
509 | fprintf(outfile,"%08lx\t%08lx\t", m->origin, m->length); | |
510 | print_flags(outfile, &m->flags); | |
511 | fprintf(outfile,"\n"); | |
512 | } | |
513 | fprintf(outfile,"\n\n**LINK EDITOR MEMORY MAP**\n\n"); | |
514 | fprintf(outfile,"output\t\tinput\t\tvirtual\n"); | |
515 | fprintf(outfile,"section\t\tsection\t\taddress\tsize\n\n"); | |
516 | ||
517 | print_statements(); | |
518 | ||
519 | } | |
520 | ||
521 | /* | |
522 | * | |
523 | */ | |
1418c83b SC |
524 | static void |
525 | DEFUN(init_os,(s), | |
526 | lang_output_section_statement_type *s) | |
2fa0b342 DHW |
527 | { |
528 | section_userdata_type *new = | |
529 | (section_userdata_type *) | |
530 | ldmalloc(sizeof(section_userdata_type)); | |
531 | ||
532 | s->bfd_section = bfd_make_section(output_bfd, s->name); | |
533 | s->bfd_section->output_section = s->bfd_section; | |
534 | s->bfd_section->flags = SEC_NO_FLAGS; | |
535 | /* We initialize an output sections output offset to minus its own */ | |
536 | /* vma to allow us to output a section through itself */ | |
537 | s->bfd_section->output_offset = 0; | |
538 | get_userdata( s->bfd_section) = new; | |
539 | } | |
540 | ||
1418c83b SC |
541 | /*********************************************************************** |
542 | The wild routines. | |
543 | ||
544 | These expand statements like *(.text) and foo.o to a list of | |
545 | explicit actions, like foo.o(.text), bar.o(.text) and | |
546 | foo.o(.text,.data) . | |
547 | ||
548 | The toplevel routine, wild, takes a statement, section, file and | |
549 | target. If either the section or file is null it is taken to be the | |
550 | wildcard. Seperate lang_input_section statements are created for | |
551 | each part of the expanstion, and placed after the statement provided. | |
552 | ||
553 | */ | |
554 | ||
2fa0b342 | 555 | static void |
1418c83b SC |
556 | DEFUN(wild_doit,(ptr, section, output, file), |
557 | lang_statement_list_type *ptr AND | |
558 | asection *section AND | |
559 | lang_output_section_statement_type *output AND | |
560 | lang_input_statement_type *file) | |
2fa0b342 DHW |
561 | { |
562 | if(output->bfd_section == (asection *)NULL) | |
563 | { | |
564 | init_os(output); | |
565 | } | |
566 | ||
567 | if (section != (asection *)NULL | |
568 | && section->output_section == (asection *)NULL) { | |
569 | /* Add a section reference to the list */ | |
570 | lang_input_section_type *new = new_stat(lang_input_section, ptr); | |
571 | ||
572 | new->section = section; | |
573 | new->ifile = file; | |
574 | section->output_section = output->bfd_section; | |
575 | section->output_section->flags |= section->flags; | |
576 | if (section->alignment_power > output->bfd_section->alignment_power) { | |
577 | output->bfd_section->alignment_power = section->alignment_power; | |
578 | } | |
2fa0b342 DHW |
579 | } |
580 | } | |
581 | ||
582 | static asection * | |
1418c83b SC |
583 | DEFUN(our_bfd_get_section_by_name,(abfd, section), |
584 | bfd *abfd AND | |
585 | CONST char *section) | |
2fa0b342 DHW |
586 | { |
587 | return bfd_get_section_by_name(abfd, section); | |
2fa0b342 | 588 | } |
1418c83b | 589 | |
2fa0b342 | 590 | static void |
1418c83b SC |
591 | DEFUN(wild_section,(ptr, section, file , output), |
592 | lang_wild_statement_type *ptr AND | |
593 | CONST char *section AND | |
594 | lang_input_statement_type *file AND | |
595 | lang_output_section_statement_type *output) | |
2fa0b342 DHW |
596 | { |
597 | asection *s; | |
1418c83b SC |
598 | if (file->just_syms_flag == false) { |
599 | if (section == (char *)NULL) { | |
600 | /* Do the creation to all sections in the file */ | |
601 | for (s = file->the_bfd->sections; s != (asection *)NULL; s=s->next) { | |
602 | wild_doit(&ptr->children, s, output, file); | |
603 | } | |
604 | } | |
605 | else { | |
606 | /* Do the creation to the named section only */ | |
607 | wild_doit(&ptr->children, | |
608 | our_bfd_get_section_by_name(file->the_bfd, section), | |
609 | output, file); | |
2fa0b342 DHW |
610 | } |
611 | } | |
2fa0b342 DHW |
612 | } |
613 | ||
614 | ||
1418c83b SC |
615 | /* passed a file name (which must have been seen already and added to |
616 | the statement tree. We will see if it has been opened already and | |
617 | had its symbols read. If not then we'll read it. | |
2fa0b342 | 618 | |
1418c83b SC |
619 | Archives are pecuilar here. We may open them once, but if they do |
620 | not define anything we need at the time, they won't have all their | |
621 | symbols read. If we need them later, we'll have to redo it. | |
622 | */ | |
2fa0b342 | 623 | static |
1418c83b SC |
624 | lang_input_statement_type * |
625 | DEFUN(lookup_name,(name), | |
626 | CONST char * CONST name) | |
2fa0b342 DHW |
627 | { |
628 | lang_input_statement_type *search; | |
629 | for(search = (lang_input_statement_type *)input_file_chain.head; | |
630 | search != (lang_input_statement_type *)NULL; | |
631 | search = (lang_input_statement_type *)search->next_real_file) | |
1418c83b SC |
632 | { |
633 | if (search->filename == (char *)NULL && name == (char *)NULL) { | |
2fa0b342 DHW |
634 | return search; |
635 | } | |
1418c83b SC |
636 | if (search->filename != (char *)NULL && name != (char *)NULL) { |
637 | if (strcmp(search->filename, name) == 0) { | |
638 | ldmain_open_file_read_symbol(search); | |
639 | return search; | |
640 | } | |
641 | } | |
2fa0b342 | 642 | } |
2fa0b342 | 643 | |
1418c83b SC |
644 | /* There isn't an afile entry for this file yet, this must be |
645 | because the name has only appeared inside a load script and not | |
646 | on the command line */ | |
647 | search = new_afile(name, lang_input_file_is_file_enum, default_target); | |
648 | ldmain_open_file_read_symbol(search); | |
2fa0b342 | 649 | return search; |
1418c83b SC |
650 | |
651 | ||
2fa0b342 DHW |
652 | } |
653 | ||
654 | static void | |
1418c83b SC |
655 | DEFUN(wild,(s, section, file, target, output), |
656 | lang_wild_statement_type *s AND | |
657 | CONST char *CONST section AND | |
658 | CONST char *CONST file AND | |
659 | CONST char *CONST target AND | |
660 | lang_output_section_statement_type *output) | |
2fa0b342 DHW |
661 | { |
662 | lang_input_statement_type *f; | |
663 | if (file == (char *)NULL) { | |
664 | /* Perform the iteration over all files in the list */ | |
665 | for (f = (lang_input_statement_type *)file_chain.head; | |
666 | f != (lang_input_statement_type *)NULL; | |
667 | f = (lang_input_statement_type *)f->next) { | |
668 | wild_section(s, section, f, output); | |
669 | } | |
670 | } | |
671 | else { | |
672 | /* Perform the iteration over a single file */ | |
1418c83b | 673 | wild_section( s, section, lookup_name(file), output); |
2fa0b342 | 674 | } |
1418c83b SC |
675 | if (strcmp(section,"COMMON") == 0 |
676 | && default_common_section == (lang_output_section_statement_type*)NULL) | |
677 | { | |
678 | /* Remember the section that common is going to incase we later | |
679 | get something which doesn't know where to put it */ | |
680 | default_common_section = output; | |
681 | } | |
2fa0b342 DHW |
682 | } |
683 | ||
684 | /* | |
685 | read in all the files | |
686 | */ | |
687 | static bfd * | |
097879bc SC |
688 | DEFUN(open_output,(name), |
689 | CONST char *CONST name) | |
2fa0b342 | 690 | { |
1418c83b | 691 | extern CONST char *output_filename; |
097879bc SC |
692 | bfd *output; |
693 | if (output_target == (char *)NULL) { | |
694 | if (current_target != (char *)NULL) | |
695 | output_target = current_target; | |
696 | else | |
697 | output_target = default_target; | |
698 | } | |
699 | output = bfd_openw(name, output_target); | |
2fa0b342 | 700 | output_filename = name; |
097879bc | 701 | |
2fa0b342 | 702 | if (output == (bfd *)NULL) |
1418c83b SC |
703 | { |
704 | if (bfd_error == invalid_target) { | |
097879bc | 705 | info("%P%F target %s not found\n", output_target); |
1418c83b SC |
706 | } |
707 | info("%P%F problem opening output file %s, %E", name); | |
2fa0b342 | 708 | } |
2fa0b342 DHW |
709 | |
710 | output->flags |= D_PAGED; | |
711 | bfd_set_format(output, bfd_object); | |
712 | return output; | |
713 | } | |
1418c83b SC |
714 | |
715 | ||
097879bc | 716 | |
1418c83b | 717 | |
2fa0b342 | 718 | static void |
1418c83b SC |
719 | DEFUN(ldlang_open_output,(statement), |
720 | lang_statement_union_type *statement) | |
2fa0b342 | 721 | { |
1418c83b SC |
722 | switch (statement->header.type) |
723 | { | |
724 | case lang_output_statement_enum: | |
097879bc | 725 | output_bfd = open_output(statement->output_statement.name); |
2fa0b342 | 726 | ldemul_set_output_arch(); |
2fa0b342 | 727 | break; |
1418c83b | 728 | |
2fa0b342 | 729 | case lang_target_statement_enum: |
1418c83b | 730 | current_target = statement->target_statement.target; |
2fa0b342 | 731 | break; |
1418c83b | 732 | default: |
2fa0b342 | 733 | break; |
1418c83b SC |
734 | } |
735 | } | |
2fa0b342 | 736 | |
1418c83b SC |
737 | static void |
738 | DEFUN(open_input_bfds,(statement), | |
739 | lang_statement_union_type *statement) | |
740 | { | |
741 | switch (statement->header.type) | |
742 | { | |
743 | case lang_target_statement_enum: | |
744 | current_target = statement->target_statement.target; | |
2fa0b342 | 745 | break; |
1418c83b SC |
746 | case lang_wild_statement_enum: |
747 | /* Maybe we should load the file's symbols */ | |
748 | if (statement->wild_statement.filename) | |
749 | { | |
750 | (void) lookup_name(statement->wild_statement.filename); | |
751 | } | |
2fa0b342 | 752 | break; |
1418c83b SC |
753 | case lang_input_statement_enum: |
754 | if (statement->input_statement.real == true) | |
755 | { | |
756 | statement->input_statement.target = current_target; | |
757 | lookup_name(statement->input_statement.filename); | |
758 | } | |
2fa0b342 | 759 | break; |
1418c83b | 760 | default: |
2fa0b342 DHW |
761 | break; |
762 | } | |
2fa0b342 | 763 | } |
2fa0b342 DHW |
764 | /* If there are [COMMONS] statements, put a wild one into the bss section */ |
765 | ||
766 | static void | |
767 | lang_reasonable_defaults() | |
768 | { | |
1418c83b | 769 | #if 0 |
8cb5eb31 SC |
770 | lang_output_section_statement_lookup(".text"); |
771 | lang_output_section_statement_lookup(".data"); | |
772 | ||
2fa0b342 DHW |
773 | default_common_section = |
774 | lang_output_section_statement_lookup(".bss"); | |
8cb5eb31 | 775 | |
1418c83b | 776 | |
2fa0b342 DHW |
777 | if (placed_commons == false) { |
778 | lang_wild_statement_type *new = | |
779 | new_stat(lang_wild_statement, | |
780 | &default_common_section->children); | |
781 | new->section_name = "COMMON"; | |
782 | new->filename = (char *)NULL; | |
783 | lang_list_init(&new->children); | |
784 | } | |
1418c83b | 785 | #endif |
8cb5eb31 | 786 | |
2fa0b342 DHW |
787 | } |
788 | ||
1418c83b SC |
789 | /* |
790 | Add the supplied name to the symbol table as an undefined reference. | |
791 | Remove items from the chain as we open input bfds | |
792 | */ | |
793 | typedef struct ldlang_undef_chain_list_struct { | |
794 | struct ldlang_undef_chain_list_struct *next; | |
795 | char *name; | |
796 | } ldlang_undef_chain_list_type; | |
797 | ||
798 | static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head; | |
799 | ||
800 | void | |
801 | DEFUN(ldlang_add_undef,(name), | |
802 | CONST char *CONST name) | |
2fa0b342 | 803 | { |
1418c83b SC |
804 | ldlang_undef_chain_list_type *new = |
805 | (ldlang_undef_chain_list_type | |
806 | *)ldmalloc(sizeof(ldlang_undef_chain_list_type)); | |
807 | ||
808 | new->next = ldlang_undef_chain_list_head; | |
809 | ldlang_undef_chain_list_head = new; | |
810 | ||
811 | new->name = buystring(name); | |
812 | } | |
813 | /* Run through the list of undefineds created above and place them | |
814 | into the linker hash table as undefined symbols belonging to the | |
815 | script file. | |
816 | */ | |
817 | static void | |
818 | DEFUN_VOID(lang_place_undefineds) | |
819 | { | |
820 | ldlang_undef_chain_list_type *ptr = ldlang_undef_chain_list_head; | |
821 | while (ptr != (ldlang_undef_chain_list_type*)NULL) { | |
822 | ldsym_type *sy = ldsym_get(ptr->name); | |
823 | asymbol *def; | |
824 | asymbol **def_ptr = (asymbol **)ldmalloc(sizeof(asymbol **)); | |
825 | def = (asymbol *)bfd_make_empty_symbol(script_file->the_bfd); | |
826 | *def_ptr= def; | |
827 | def->name = ptr->name; | |
828 | def->flags = BSF_UNDEFINED; | |
829 | def->section = (asection *)NULL; | |
830 | Q_enter_global_ref(def_ptr); | |
831 | ptr = ptr->next; | |
2fa0b342 | 832 | } |
1418c83b | 833 | } |
2fa0b342 | 834 | |
1418c83b SC |
835 | |
836 | ||
837 | /* Copy important data from out internal form to the bfd way. Also | |
838 | create a section for the dummy file | |
839 | */ | |
840 | ||
841 | static void | |
842 | DEFUN_VOID(lang_create_output_section_statements) | |
843 | { | |
844 | lang_statement_union_type*os; | |
845 | for (os = lang_output_section_statement.head; | |
846 | os != (lang_statement_union_type*)NULL; | |
847 | os = os->output_section_statement.next) { | |
848 | lang_output_section_statement_type *s = | |
849 | &os->output_section_statement; | |
850 | init_os(s); | |
851 | } | |
852 | ||
853 | } | |
854 | ||
855 | static void | |
856 | DEFUN_VOID(lang_init_script_file) | |
857 | { | |
858 | script_file = lang_add_input_file("script file", | |
859 | lang_input_file_is_fake_enum, | |
860 | (char *)NULL); | |
861 | script_file->the_bfd = bfd_create("script file", output_bfd); | |
862 | script_file->symbol_count = 0; | |
863 | script_file->the_bfd->sections = output_bfd->sections; | |
2fa0b342 DHW |
864 | } |
865 | ||
866 | ||
1418c83b SC |
867 | |
868 | ||
2fa0b342 DHW |
869 | /* Open input files and attatch to output sections */ |
870 | static void | |
1418c83b SC |
871 | DEFUN(map_input_to_output_sections,(s, target, output_section_statement), |
872 | lang_statement_union_type *s AND | |
873 | CONST char *target AND | |
874 | lang_output_section_statement_type *output_section_statement) | |
2fa0b342 DHW |
875 | { |
876 | for (; s != (lang_statement_union_type *)NULL ; s = s->next) | |
877 | { | |
878 | switch (s->header.type) { | |
879 | case lang_wild_statement_enum: | |
880 | wild(&s->wild_statement, s->wild_statement.section_name, | |
881 | s->wild_statement.filename, target, | |
882 | output_section_statement); | |
883 | ||
884 | break; | |
885 | ||
886 | case lang_output_section_statement_enum: | |
1418c83b | 887 | map_input_to_output_sections(s->output_section_statement.children.head, |
2fa0b342 DHW |
888 | target, |
889 | &s->output_section_statement); | |
890 | break; | |
891 | case lang_output_statement_enum: | |
892 | break; | |
893 | case lang_target_statement_enum: | |
894 | target = s->target_statement.target; | |
895 | break; | |
2fa0b342 DHW |
896 | case lang_fill_statement_enum: |
897 | case lang_input_section_enum: | |
898 | case lang_object_symbols_statement_enum: | |
899 | case lang_data_statement_enum: | |
1418c83b SC |
900 | case lang_assignment_statement_enum: |
901 | case lang_padding_statement_enum: | |
2fa0b342 DHW |
902 | break; |
903 | case lang_afile_asection_pair_statement_enum: | |
904 | FAIL(); | |
905 | break; | |
2fa0b342 DHW |
906 | case lang_address_statement_enum: |
907 | /* Mark the specified section with the supplied address */ | |
908 | { | |
909 | lang_output_section_statement_type *os = | |
910 | lang_output_section_statement_lookup | |
911 | (s->address_statement.section_name); | |
912 | os->addr_tree = s->address_statement.address; | |
913 | } | |
914 | break; | |
915 | case lang_input_statement_enum: | |
916 | /* A standard input statement, has no wildcards */ | |
1418c83b | 917 | /* ldmain_open_file_read_symbol(&s->input_statement);*/ |
2fa0b342 DHW |
918 | break; |
919 | } | |
920 | } | |
921 | } | |
922 | ||
923 | ||
924 | ||
925 | ||
926 | ||
927 | static void | |
1418c83b SC |
928 | DEFUN(print_output_section_statement,(output_section_statement), |
929 | lang_output_section_statement_type *output_section_statement) | |
2fa0b342 DHW |
930 | { |
931 | asection *section = output_section_statement->bfd_section; | |
932 | print_nl(); | |
933 | print_section(output_section_statement->name); | |
934 | ||
935 | if (section) { | |
936 | print_dot = section->vma; | |
937 | print_space(); | |
938 | print_section(""); | |
939 | print_space(); | |
940 | print_address(section->vma); | |
941 | print_space(); | |
942 | print_size(section->size); | |
943 | print_space(); | |
944 | print_alignment(section->alignment_power); | |
945 | print_space(); | |
946 | #if 0 | |
947 | printf("%s flags", output_section_statement->region->name); | |
948 | print_flags(stdout, &output_section_statement->flags); | |
949 | #endif | |
950 | ||
951 | } | |
952 | else { | |
953 | printf("No attached output section"); | |
954 | } | |
955 | print_nl(); | |
956 | print_statement(output_section_statement->children.head, | |
957 | output_section_statement); | |
958 | ||
959 | } | |
960 | ||
961 | static void | |
1418c83b SC |
962 | DEFUN(print_assignment,(assignment, output_section), |
963 | lang_assignment_statement_type *assignment AND | |
964 | lang_output_section_statement_type *output_section) | |
2fa0b342 DHW |
965 | { |
966 | etree_value_type result; | |
967 | print_section(""); | |
968 | print_space(); | |
969 | print_section(""); | |
970 | print_space(); | |
971 | print_address(print_dot); | |
972 | print_space(); | |
973 | result = exp_fold_tree(assignment->exp->assign.src, | |
974 | output_section, | |
975 | lang_final_phase_enum, | |
976 | print_dot, | |
977 | &print_dot); | |
978 | ||
979 | if (result.valid) { | |
980 | print_address(result.value); | |
981 | } | |
982 | else | |
1418c83b SC |
983 | { |
984 | printf("*undefined*"); | |
985 | } | |
2fa0b342 DHW |
986 | print_space(); |
987 | exp_print_tree(stdout, assignment->exp); | |
988 | printf("\n"); | |
989 | } | |
990 | ||
991 | static void | |
1418c83b SC |
992 | DEFUN(print_input_statement,(statm), |
993 | lang_input_statement_type *statm) | |
2fa0b342 | 994 | { |
070aa819 SC |
995 | if (statm->filename != (char *)NULL) { |
996 | printf("LOAD %s\n",statm->filename); | |
997 | } | |
2fa0b342 DHW |
998 | } |
999 | ||
1418c83b SC |
1000 | static void |
1001 | DEFUN(print_symbol,(q), | |
1002 | asymbol *q) | |
2fa0b342 DHW |
1003 | { |
1004 | print_section(""); | |
1005 | printf(" "); | |
1006 | print_section(""); | |
1007 | printf(" "); | |
1008 | print_address(outside_symbol_address(q)); | |
1009 | printf(" %s", q->name ? q->name : " "); | |
1010 | print_nl(); | |
1011 | } | |
1418c83b | 1012 | |
2fa0b342 | 1013 | static void |
1418c83b SC |
1014 | DEFUN(print_input_section,(in), |
1015 | lang_input_section_type *in) | |
2fa0b342 DHW |
1016 | { |
1017 | asection *i = in->section; | |
1018 | ||
1019 | if(i->size != 0) { | |
1020 | print_section(""); | |
1021 | printf(" "); | |
1022 | print_section(i->name); | |
1023 | printf(" "); | |
1024 | if (i->output_section) { | |
1025 | print_address(i->output_section->vma + i->output_offset); | |
1026 | printf(" "); | |
1027 | print_size(i->size); | |
1028 | printf(" "); | |
1029 | print_alignment(i->alignment_power); | |
1030 | printf(" "); | |
1031 | if (in->ifile) { | |
1418c83b | 1032 | |
2fa0b342 | 1033 | bfd *abfd = in->ifile->the_bfd; |
1418c83b SC |
1034 | if (in->ifile->just_syms_flag == true) { |
1035 | printf("symbols only "); | |
1036 | } | |
1037 | ||
2fa0b342 DHW |
1038 | printf(" %s ",abfd->xvec->name); |
1039 | if(abfd->my_archive != (bfd *)NULL) { | |
1040 | printf("[%s]%s", abfd->my_archive->filename, | |
1041 | abfd->filename); | |
1042 | } | |
1043 | else { | |
1044 | printf("%s", abfd->filename); | |
1045 | } | |
1046 | print_nl(); | |
1047 | ||
1048 | /* Find all the symbols in this file defined in this section */ | |
1418c83b SC |
1049 | { |
1050 | asymbol **p; | |
1051 | for (p = in->ifile->asymbols; *p; p++) { | |
1052 | asymbol *q = *p; | |
2fa0b342 | 1053 | |
1418c83b SC |
1054 | if (bfd_get_section(q) == i && q->flags & BSF_GLOBAL) { |
1055 | print_symbol(q); | |
1056 | } | |
2fa0b342 DHW |
1057 | } |
1058 | } | |
2fa0b342 DHW |
1059 | } |
1060 | else { | |
1061 | print_nl(); | |
1062 | } | |
1063 | ||
1064 | ||
1065 | print_dot = outside_section_address(i) + i->size; | |
1066 | } | |
1067 | else { | |
1068 | printf("No output section allocated\n"); | |
1069 | } | |
1070 | } | |
1071 | } | |
2fa0b342 | 1072 | |
2fa0b342 | 1073 | static void |
1418c83b SC |
1074 | DEFUN(print_fill_statement,(fill), |
1075 | lang_fill_statement_type *fill) | |
2fa0b342 DHW |
1076 | { |
1077 | printf("FILL mask "); | |
1078 | print_fill( fill->fill); | |
1079 | } | |
1080 | ||
1081 | static void | |
1418c83b SC |
1082 | DEFUN(print_data_statement,(data), |
1083 | lang_data_statement_type *data) | |
2fa0b342 DHW |
1084 | { |
1085 | /* bfd_vma value; */ | |
1086 | print_section(""); | |
1087 | print_space(); | |
1088 | print_section(""); | |
1089 | print_space(); | |
1090 | ASSERT(print_dot == data->output_vma); | |
1091 | ||
1092 | print_address(data->output_vma); | |
1093 | print_space(); | |
1094 | print_address(data->value); | |
1095 | print_space(); | |
1096 | switch (data->type) { | |
1097 | case BYTE : | |
1098 | printf("BYTE "); | |
1099 | print_dot += BYTE_SIZE; | |
1100 | break; | |
1101 | case SHORT: | |
1102 | printf("SHORT "); | |
1103 | print_dot += SHORT_SIZE; | |
1104 | break; | |
1105 | case LONG: | |
1106 | printf("LONG "); | |
1107 | print_dot += LONG_SIZE; | |
1108 | break; | |
1109 | } | |
1110 | ||
1111 | exp_print_tree(stdout, data->exp); | |
1112 | ||
1113 | printf("\n"); | |
1114 | } | |
1115 | ||
1116 | ||
1117 | static void | |
1418c83b SC |
1118 | DEFUN(print_padding_statement,(s), |
1119 | lang_padding_statement_type *s) | |
2fa0b342 DHW |
1120 | { |
1121 | print_section(""); | |
1122 | print_space(); | |
1123 | print_section("*fill*"); | |
1124 | print_space(); | |
1125 | print_address(s->output_offset + s->output_section->vma); | |
1126 | print_space(); | |
1127 | print_size(s->size); | |
1128 | print_space(); | |
1129 | print_fill(s->fill); | |
1130 | print_nl(); | |
1131 | } | |
1132 | ||
1418c83b SC |
1133 | static void |
1134 | DEFUN(print_wild_statement,(w,os), | |
1135 | lang_wild_statement_type *w AND | |
1136 | lang_output_section_statement_type *os) | |
2fa0b342 DHW |
1137 | { |
1138 | if (w->filename != (char *)NULL) { | |
1139 | printf("%s",w->filename); | |
1140 | } | |
1141 | else { | |
1142 | printf("*"); | |
1143 | } | |
1144 | if (w->section_name != (char *)NULL) { | |
1145 | printf("(%s)",w->section_name); | |
1146 | } | |
1147 | else { | |
1148 | printf("(*)"); | |
1149 | } | |
1150 | print_nl(); | |
1151 | print_statement(w->children.head, os); | |
1152 | ||
1153 | } | |
1154 | static void | |
1418c83b SC |
1155 | DEFUN(print_statement,(s, os), |
1156 | lang_statement_union_type *s AND | |
1157 | lang_output_section_statement_type *os) | |
2fa0b342 DHW |
1158 | { |
1159 | while (s) { | |
1160 | switch (s->header.type) { | |
1161 | case lang_wild_statement_enum: | |
1418c83b SC |
1162 | print_wild_statement(&s->wild_statement, os); |
1163 | break; | |
2fa0b342 | 1164 | default: |
1418c83b | 1165 | printf("Fail with %d\n",s->header.type); |
2fa0b342 DHW |
1166 | FAIL(); |
1167 | break; | |
1418c83b SC |
1168 | case lang_address_statement_enum: |
1169 | printf("address\n"); | |
1170 | break; | |
2fa0b342 DHW |
1171 | break; |
1172 | case lang_object_symbols_statement_enum: | |
1173 | printf("object symbols\n"); | |
1174 | break; | |
1175 | case lang_fill_statement_enum: | |
1176 | print_fill_statement(&s->fill_statement); | |
1177 | break; | |
1178 | case lang_data_statement_enum: | |
1179 | print_data_statement(&s->data_statement); | |
1180 | break; | |
2fa0b342 DHW |
1181 | case lang_input_section_enum: |
1182 | print_input_section(&s->input_section); | |
1183 | break; | |
1184 | case lang_padding_statement_enum: | |
1185 | print_padding_statement(&s->padding_statement); | |
1186 | break; | |
1187 | case lang_output_section_statement_enum: | |
1188 | print_output_section_statement(&s->output_section_statement); | |
1189 | break; | |
1190 | case lang_assignment_statement_enum: | |
1191 | print_assignment(&s->assignment_statement, | |
1418c83b | 1192 | os); |
2fa0b342 DHW |
1193 | break; |
1194 | ||
1195 | ||
1196 | case lang_target_statement_enum: | |
1197 | printf("TARGET(%s)\n", s->target_statement.target); | |
1198 | break; | |
1199 | case lang_output_statement_enum: | |
097879bc SC |
1200 | printf("OUTPUT(%s %s)\n", |
1201 | s->output_statement.name, | |
1202 | output_target); | |
2fa0b342 DHW |
1203 | break; |
1204 | case lang_input_statement_enum: | |
1205 | print_input_statement(&s->input_statement); | |
1206 | break; | |
1207 | case lang_afile_asection_pair_statement_enum: | |
1208 | FAIL(); | |
1209 | break; | |
1210 | } | |
1211 | s = s->next; | |
1212 | } | |
1213 | } | |
1214 | ||
1215 | ||
1216 | static void | |
1418c83b | 1217 | DEFUN_VOID(print_statements) |
2fa0b342 DHW |
1218 | { |
1219 | print_statement(statement_list.head, | |
1220 | (lang_output_section_statement_type *)NULL); | |
1221 | } | |
1222 | ||
1223 | static bfd_vma | |
1418c83b SC |
1224 | DEFUN(insert_pad,(this_ptr, fill, power, output_section_statement, dot), |
1225 | lang_statement_union_type **this_ptr AND | |
1226 | fill_type fill AND | |
1227 | unsigned int power AND | |
1228 | asection * output_section_statement AND | |
1229 | bfd_vma dot) | |
2fa0b342 DHW |
1230 | { |
1231 | /* Align this section first to the | |
1232 | input sections requirement, then | |
1233 | to the output section's requirement. | |
1234 | If this alignment is > than any seen before, | |
1235 | then record it too. Perform the alignment by | |
1236 | inserting a magic 'padding' statement. | |
1237 | */ | |
1238 | ||
1239 | unsigned int alignment_needed = align_power(dot, power) - dot; | |
1240 | ||
1241 | if (alignment_needed != 0) | |
1242 | { | |
1243 | lang_statement_union_type *new = | |
1244 | (lang_statement_union_type *) | |
1245 | ldmalloc(sizeof(lang_padding_statement_type)); | |
1246 | /* Link into existing chain */ | |
1247 | new->header.next = *this_ptr; | |
1248 | *this_ptr = new; | |
1249 | new->header.type = lang_padding_statement_enum; | |
1250 | new->padding_statement.output_section = output_section_statement; | |
1251 | new->padding_statement.output_offset = | |
1252 | dot - output_section_statement->vma; | |
1253 | new->padding_statement.fill = fill; | |
1254 | new->padding_statement.size = alignment_needed; | |
1255 | } | |
1256 | ||
1257 | ||
1258 | /* Remember the most restrictive alignment */ | |
1259 | if (power > output_section_statement->alignment_power) { | |
1260 | output_section_statement->alignment_power = power; | |
1261 | } | |
1262 | output_section_statement->size += alignment_needed; | |
1263 | return alignment_needed + dot; | |
1264 | ||
1265 | } | |
1266 | ||
1418c83b | 1267 | /* Work out how much this section will move the dot point */ |
2fa0b342 | 1268 | static bfd_vma |
1418c83b SC |
1269 | DEFUN(size_input_section, (this_ptr, output_section_statement, fill, dot), |
1270 | lang_statement_union_type **this_ptr AND | |
1271 | lang_output_section_statement_type*output_section_statement AND | |
1272 | unsigned short fill AND | |
1273 | bfd_vma dot) | |
2fa0b342 DHW |
1274 | { |
1275 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
1276 | asection *i = is->section; | |
1418c83b SC |
1277 | |
1278 | if (is->ifile->just_syms_flag == false) { | |
2fa0b342 DHW |
1279 | dot = insert_pad(this_ptr, fill, i->alignment_power, |
1280 | output_section_statement->bfd_section, dot); | |
1281 | ||
1282 | /* remember the largest size so we can malloc the largest area */ | |
1283 | /* needed for the output stage */ | |
1284 | if (i->size > largest_section) { | |
1285 | largest_section = i->size; | |
1286 | } | |
1287 | ||
1288 | /* Remember where in the output section this input section goes */ | |
1289 | i->output_offset = dot - output_section_statement->bfd_section->vma; | |
1290 | ||
1291 | /* Mark how big the output section must be to contain this now */ | |
1292 | dot += i->size; | |
1293 | output_section_statement->bfd_section->size = | |
1294 | dot - output_section_statement->bfd_section->vma; | |
1418c83b | 1295 | } |
2fa0b342 DHW |
1296 | |
1297 | return dot ; | |
1298 | } | |
1299 | ||
1300 | ||
1301 | /* Work out the size of the output sections | |
1302 | from the sizes of the input sections */ | |
1303 | static bfd_vma | |
1418c83b SC |
1304 | DEFUN(lang_size_sections,(s, output_section_statement, prev, fill, dot), |
1305 | lang_statement_union_type *s AND | |
1306 | lang_output_section_statement_type * output_section_statement AND | |
1307 | lang_statement_union_type **prev AND | |
1308 | unsigned short fill AND | |
1309 | bfd_vma dot) | |
2fa0b342 DHW |
1310 | { |
1311 | /* Size up the sections from their constituent parts */ | |
1312 | for (; s != (lang_statement_union_type *)NULL ; s = s->next) | |
1418c83b SC |
1313 | { |
1314 | switch (s->header.type) { | |
1315 | case lang_output_section_statement_enum: | |
1316 | { | |
1317 | bfd_vma after; | |
1318 | lang_output_section_statement_type *os = | |
1319 | &(s->output_section_statement); | |
1320 | /* The start of a section */ | |
2fa0b342 | 1321 | |
1418c83b SC |
1322 | if (os->addr_tree == (etree_type *)NULL) { |
1323 | /* No address specified for this section, get one | |
1324 | from the region specification | |
1325 | */ | |
1326 | if (os->region == (lang_memory_region_type *)NULL) { | |
2fa0b342 | 1327 | os->region = lang_memory_region_lookup("*default*"); |
1418c83b SC |
1328 | } |
1329 | dot = os->region->current; | |
2fa0b342 | 1330 | } |
1418c83b SC |
1331 | else { |
1332 | etree_value_type r ; | |
1333 | r = exp_fold_tree(os->addr_tree, | |
1334 | (lang_output_section_statement_type *)NULL, | |
1335 | lang_allocating_phase_enum, | |
1336 | dot, &dot); | |
1337 | if (r.valid == false) { | |
1338 | info("%F%S: non constant address expression for section %s\n", | |
1339 | os->name); | |
1340 | } | |
1341 | dot = r.value; | |
1342 | } | |
1343 | /* The section starts here */ | |
1344 | /* First, align to what the section needs */ | |
2fa0b342 | 1345 | |
1418c83b SC |
1346 | dot = align_power(dot, os->bfd_section->alignment_power); |
1347 | os->bfd_section->vma = dot; | |
1348 | os->bfd_section->output_offset = 0; | |
2fa0b342 | 1349 | |
1418c83b SC |
1350 | (void) lang_size_sections(os->children.head, os, &os->children.head, |
1351 | os->fill, dot); | |
1352 | /* Ignore the size of the input sections, use the vma and size to */ | |
1353 | /* align against */ | |
2fa0b342 DHW |
1354 | |
1355 | ||
1418c83b SC |
1356 | after = ALIGN(os->bfd_section->vma + |
1357 | os->bfd_section->size, | |
1358 | os->block_value) ; | |
2fa0b342 DHW |
1359 | |
1360 | ||
1418c83b SC |
1361 | os->bfd_section->size = after - os->bfd_section->vma; |
1362 | dot = os->bfd_section->vma + os->bfd_section->size; | |
1363 | os->processed = true; | |
2fa0b342 | 1364 | |
1418c83b SC |
1365 | /* Replace into region ? */ |
1366 | if (os->addr_tree == (etree_type *)NULL | |
1367 | && os->region !=(lang_memory_region_type*)NULL ) { | |
1368 | os->region->current = dot; | |
1369 | } | |
1370 | } | |
2fa0b342 | 1371 | |
1418c83b | 1372 | break; |
2fa0b342 | 1373 | |
1418c83b SC |
1374 | case lang_data_statement_enum: |
1375 | { | |
1376 | unsigned int size; | |
1377 | s->data_statement.output_vma = dot; | |
1378 | s->data_statement.output_section = | |
1379 | output_section_statement->bfd_section; | |
2fa0b342 | 1380 | |
1418c83b SC |
1381 | switch (s->data_statement.type) { |
1382 | case LONG: | |
1383 | size = LONG_SIZE; | |
1384 | break; | |
1385 | case SHORT: | |
1386 | size = SHORT_SIZE; | |
1387 | break; | |
1388 | case BYTE: | |
1389 | size = BYTE_SIZE; | |
1390 | break; | |
2fa0b342 | 1391 | |
1418c83b SC |
1392 | } |
1393 | dot += size; | |
1394 | output_section_statement->bfd_section->size += size; | |
1395 | } | |
1396 | break; | |
2fa0b342 | 1397 | |
1418c83b | 1398 | case lang_wild_statement_enum: |
2fa0b342 | 1399 | |
1418c83b | 1400 | dot = lang_size_sections(s->wild_statement.children.head, |
2fa0b342 DHW |
1401 | output_section_statement, |
1402 | &s->wild_statement.children.head, | |
1403 | ||
1404 | fill, dot); | |
1405 | ||
1418c83b | 1406 | break; |
2fa0b342 | 1407 | |
1418c83b SC |
1408 | case lang_object_symbols_statement_enum: |
1409 | create_object_symbols = output_section_statement; | |
1410 | break; | |
1411 | case lang_output_statement_enum: | |
1412 | case lang_target_statement_enum: | |
1413 | break; | |
1414 | case lang_input_section_enum: | |
1415 | dot = size_input_section(prev, | |
2fa0b342 DHW |
1416 | output_section_statement, |
1417 | output_section_statement->fill, dot); | |
1418c83b SC |
1418 | break; |
1419 | case lang_input_statement_enum: | |
1420 | break; | |
1421 | case lang_fill_statement_enum: | |
1422 | fill = s->fill_statement.fill; | |
1423 | break; | |
1424 | case lang_assignment_statement_enum: | |
2fa0b342 | 1425 | { |
1418c83b SC |
1426 | bfd_vma newdot = dot; |
1427 | exp_fold_tree(s->assignment_statement.exp, | |
1428 | output_section_statement, | |
1429 | lang_allocating_phase_enum, | |
1430 | dot, | |
1431 | &newdot); | |
1432 | ||
1433 | if (newdot != dot) | |
1434 | /* We've been moved ! so insert a pad */ | |
1435 | { | |
1436 | lang_statement_union_type *new = | |
1437 | (lang_statement_union_type *) | |
1438 | ldmalloc(sizeof(lang_padding_statement_type)); | |
1439 | /* Link into existing chain */ | |
1440 | new->header.next = *prev; | |
1441 | *prev = new; | |
1442 | new->header.type = lang_padding_statement_enum; | |
1443 | new->padding_statement.output_section = | |
1444 | output_section_statement->bfd_section; | |
1445 | new->padding_statement.output_offset = | |
1446 | dot - output_section_statement->bfd_section->vma; | |
1447 | new->padding_statement.fill = fill; | |
1448 | new->padding_statement.size = newdot - dot; | |
1449 | output_section_statement->bfd_section->size += | |
1450 | new->padding_statement.size; | |
1451 | dot = newdot; | |
1452 | } | |
2fa0b342 | 1453 | } |
2fa0b342 | 1454 | |
1418c83b SC |
1455 | break; |
1456 | case lang_padding_statement_enum: | |
1457 | FAIL(); | |
1458 | break; | |
1459 | default: | |
1460 | FAIL(); | |
1461 | break; | |
1462 | case lang_address_statement_enum: | |
1463 | break; | |
1464 | } | |
1465 | prev = &s->header.next; | |
2fa0b342 | 1466 | } |
2fa0b342 DHW |
1467 | return dot; |
1468 | } | |
1469 | ||
1470 | ||
1471 | static bfd_vma | |
1418c83b SC |
1472 | DEFUN(lang_do_assignments,(s, output_section_statement, fill, dot), |
1473 | lang_statement_union_type *s AND | |
1474 | lang_output_section_statement_type * output_section_statement AND | |
1475 | unsigned short fill AND | |
1476 | bfd_vma dot) | |
2fa0b342 DHW |
1477 | { |
1478 | ||
1479 | for (; s != (lang_statement_union_type *)NULL ; s = s->next) | |
1480 | { | |
1481 | switch (s->header.type) { | |
1482 | case lang_output_section_statement_enum: | |
1483 | { | |
1484 | lang_output_section_statement_type *os = | |
1485 | &(s->output_section_statement); | |
1486 | dot = os->bfd_section->vma; | |
1487 | (void) lang_do_assignments(os->children.head, os, os->fill, dot); | |
1488 | dot = os->bfd_section->vma + os->bfd_section->size; | |
1489 | } | |
1490 | break; | |
1491 | case lang_wild_statement_enum: | |
1492 | ||
1493 | dot = lang_do_assignments(s->wild_statement.children.head, | |
1494 | output_section_statement, | |
1495 | fill, dot); | |
1496 | ||
1497 | break; | |
1498 | ||
1499 | case lang_object_symbols_statement_enum: | |
1500 | case lang_output_statement_enum: | |
1501 | case lang_target_statement_enum: | |
1418c83b | 1502 | #if 0 |
2fa0b342 | 1503 | case lang_common_statement_enum: |
1418c83b | 1504 | #endif |
2fa0b342 DHW |
1505 | break; |
1506 | case lang_data_statement_enum: | |
1507 | { | |
1508 | etree_value_type value ; | |
1509 | value = exp_fold_tree(s->data_statement.exp, | |
1510 | 0, lang_final_phase_enum, dot, &dot); | |
1511 | s->data_statement.value = value.value; | |
1512 | if (value.valid == false) info("%F%P: Invalid data statement\n"); | |
1513 | } | |
1514 | switch (s->data_statement.type) { | |
1515 | case LONG: | |
1516 | dot += LONG_SIZE; | |
1517 | break; | |
1518 | case SHORT: | |
1519 | dot += SHORT_SIZE; | |
1520 | break; | |
1521 | case BYTE: | |
1522 | dot += BYTE_SIZE; | |
1523 | break; | |
1524 | } | |
1525 | break; | |
1526 | case lang_input_section_enum: | |
1527 | { | |
1528 | asection *in = s->input_section.section; | |
1529 | dot += in->size; | |
1530 | } | |
1531 | break; | |
1532 | ||
1533 | case lang_input_statement_enum: | |
1534 | break; | |
1535 | case lang_fill_statement_enum: | |
1536 | fill = s->fill_statement.fill; | |
1537 | break; | |
1538 | case lang_assignment_statement_enum: | |
1539 | { | |
1540 | exp_fold_tree(s->assignment_statement.exp, | |
1541 | output_section_statement, | |
1542 | lang_final_phase_enum, | |
1543 | dot, | |
1544 | &dot); | |
1545 | } | |
1546 | ||
1547 | break; | |
1548 | case lang_padding_statement_enum: | |
1549 | dot += s->padding_statement.size; | |
1550 | break; | |
1551 | default: | |
1552 | FAIL(); | |
1553 | break; | |
1554 | case lang_address_statement_enum: | |
1555 | break; | |
1556 | } | |
1557 | ||
1558 | } | |
1559 | return dot; | |
1560 | } | |
1561 | ||
1562 | ||
1563 | ||
1418c83b SC |
1564 | static void |
1565 | DEFUN_VOID(lang_relocate_globals) | |
2fa0b342 DHW |
1566 | { |
1567 | ||
1568 | /* | |
1418c83b SC |
1569 | Each ldsym_type maintains a chain of pointers to asymbols which |
1570 | references the definition. Replace each pointer to the referenence | |
1571 | with a pointer to only one place, preferably the definition. If | |
1572 | the defintion isn't available then the common symbol, and if | |
1573 | there isn't one of them then choose one reference. | |
1574 | */ | |
2fa0b342 DHW |
1575 | |
1576 | FOR_EACH_LDSYM(lgs) { | |
1577 | asymbol *it; | |
1578 | if (lgs->sdefs_chain) { | |
1579 | it = *(lgs->sdefs_chain); | |
1580 | } | |
1581 | else if (lgs->scoms_chain != (asymbol **)NULL) { | |
1582 | it = *(lgs->scoms_chain); | |
1583 | } | |
1584 | else if (lgs->srefs_chain != (asymbol **)NULL) { | |
1585 | it = *(lgs->srefs_chain); | |
1586 | } | |
1587 | else { | |
1418c83b SC |
1588 | /* This can happen when the command line asked for a symbol to |
1589 | be -u */ | |
1590 | it = (asymbol *)NULL; | |
2fa0b342 DHW |
1591 | } |
1592 | if (it != (asymbol *)NULL) | |
1418c83b SC |
1593 | { |
1594 | asymbol **ptr= lgs->srefs_chain; | |
2fa0b342 | 1595 | |
1418c83b SC |
1596 | while (ptr != (asymbol **)NULL) { |
1597 | asymbol *ref = *ptr; | |
1598 | *ptr = it; | |
1599 | ptr = (asymbol **)(ref->udata); | |
1600 | } | |
2fa0b342 | 1601 | } |
2fa0b342 DHW |
1602 | } |
1603 | } | |
1604 | ||
1605 | ||
1606 | ||
2fa0b342 | 1607 | static void |
1418c83b | 1608 | DEFUN_VOID(lang_finish) |
2fa0b342 DHW |
1609 | { |
1610 | ldsym_type *lgs; | |
1611 | ||
1612 | if (entry_symbol == (char *)NULL) { | |
1613 | /* No entry has been specified, look for start */ | |
1614 | entry_symbol = "start"; | |
1615 | } | |
1616 | lgs = ldsym_get_soft(entry_symbol); | |
1617 | if (lgs && lgs->sdefs_chain) { | |
1618 | asymbol *sy = *(lgs->sdefs_chain); | |
1619 | /* We can set the entry address*/ | |
1620 | bfd_set_start_address(output_bfd, | |
1621 | outside_symbol_address(sy)); | |
1622 | ||
1623 | } | |
1624 | else { | |
1625 | /* Can't find anything reasonable, | |
1626 | use the first address in the text section | |
1627 | */ | |
1628 | asection *ts = bfd_get_section_by_name(output_bfd, ".text"); | |
1629 | if (ts) { | |
1630 | bfd_set_start_address(output_bfd, ts->vma); | |
1631 | } | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | /* By now we know the target architecture, and we may have an */ | |
1636 | /* ldfile_output_machine_name */ | |
1637 | static void | |
1418c83b | 1638 | DEFUN_VOID(lang_check) |
2fa0b342 DHW |
1639 | { |
1640 | lang_statement_union_type *file; | |
1641 | ||
1642 | ||
1643 | for (file = file_chain.head; | |
1644 | file != (lang_statement_union_type *)NULL; | |
1645 | file=file->input_statement.next) | |
1418c83b SC |
1646 | { |
1647 | /* Inspect the architecture and ensure we're linking like | |
1648 | with like | |
1649 | */ | |
1650 | ||
1651 | if (bfd_arch_compatible( file->input_statement.the_bfd, | |
1652 | output_bfd, | |
1653 | &ldfile_output_architecture, | |
1654 | &ldfile_output_machine)) { | |
1655 | bfd_set_arch_mach(output_bfd, | |
1656 | ldfile_output_architecture, ldfile_output_machine); | |
1657 | } | |
1658 | else { | |
1659 | enum bfd_architecture this_architecture = | |
1660 | bfd_get_architecture(file->input_statement.the_bfd); | |
1661 | unsigned long this_machine = | |
1662 | bfd_get_machine(file->input_statement.the_bfd); | |
2fa0b342 | 1663 | |
1418c83b SC |
1664 | info("%I: architecture %s", |
1665 | file, | |
1666 | bfd_printable_arch_mach(this_architecture, this_machine)); | |
1667 | info(" incompatible with output %s\n", | |
1668 | bfd_printable_arch_mach(ldfile_output_architecture, | |
1669 | ldfile_output_machine)); | |
1670 | ldfile_output_architecture = this_architecture; | |
1671 | ldfile_output_machine = this_machine; | |
1672 | bfd_set_arch_mach(output_bfd, | |
1673 | ldfile_output_architecture, | |
1674 | ldfile_output_machine); | |
2fa0b342 DHW |
1675 | |
1676 | ||
1418c83b | 1677 | } |
2fa0b342 | 1678 | } |
2fa0b342 DHW |
1679 | } |
1680 | ||
1681 | ||
1682 | /* | |
1683 | * run through all the global common symbols and tie them | |
1684 | * to the output section requested. | |
1685 | */ | |
1686 | ||
1687 | static void | |
1418c83b | 1688 | DEFUN_VOID(lang_common) |
2fa0b342 DHW |
1689 | { |
1690 | ldsym_type *lgs; | |
1691 | if (config.relocateable_output == false || | |
1692 | command_line.force_common_definition== true) { | |
1693 | for (lgs = symbol_head; | |
1694 | lgs != (ldsym_type *)NULL; | |
1695 | lgs=lgs->next) | |
1418c83b SC |
1696 | { |
1697 | asymbol *com ; | |
1698 | unsigned int power_of_two; | |
1699 | size_t size; | |
1700 | size_t align; | |
1701 | if (lgs->scoms_chain != (asymbol **)NULL) { | |
1702 | com = *(lgs->scoms_chain); | |
1703 | size = com->value; | |
1704 | switch (size) { | |
1705 | case 0: | |
1706 | case 1: | |
1707 | align = 1; | |
1708 | power_of_two = 0; | |
1709 | break; | |
1710 | case 2: | |
1711 | power_of_two = 1; | |
1712 | align = 2; | |
1713 | break; | |
1714 | case 3: | |
1715 | case 4: | |
1716 | power_of_two =2; | |
1717 | align = 4; | |
1718 | break; | |
1719 | case 5: | |
1720 | case 6: | |
1721 | case 7: | |
1722 | case 8: | |
1723 | power_of_two = 3; | |
2fa0b342 | 1724 | align = 8; |
1418c83b SC |
1725 | break; |
1726 | default: | |
1727 | power_of_two = 4; | |
1728 | align = 16; | |
1729 | break; | |
2fa0b342 | 1730 | } |
2fa0b342 DHW |
1731 | |
1732 | ||
1418c83b SC |
1733 | /* Change from a common symbol into a definition of |
1734 | a symbol */ | |
1735 | lgs->sdefs_chain = lgs->scoms_chain; | |
1736 | lgs->scoms_chain = (asymbol **)NULL; | |
1737 | commons_pending--; | |
1738 | /* Point to the correct common section */ | |
1739 | com->section = | |
1740 | ((lang_input_statement_type *) | |
1741 | (com->the_bfd->usrdata))->common_section; | |
1742 | /* Fix the size of the common section */ | |
1743 | com->section->size = ALIGN(com->section->size, align); | |
1744 | ||
1745 | /* Remember if this is the biggest alignment ever seen */ | |
1746 | if (power_of_two > com->section->alignment_power) { | |
1747 | com->section->alignment_power = power_of_two; | |
2fa0b342 | 1748 | } |
1418c83b SC |
1749 | |
1750 | ||
097879bc SC |
1751 | com->flags = BSF_EXPORT | BSF_GLOBAL ; |
1752 | ||
1418c83b SC |
1753 | |
1754 | if (write_map) | |
1755 | { | |
1756 | printf ("Allocating common %s: %x at %x\n", | |
1757 | lgs->name, | |
1758 | (unsigned) size, | |
1759 | (unsigned) com->section->size); | |
1760 | } | |
1761 | com->value = com->section->size; | |
1762 | com->section->size += size; | |
097879bc SC |
1763 | com->the_bfd = output_bfd; |
1764 | ||
1418c83b SC |
1765 | |
1766 | } | |
2fa0b342 | 1767 | } |
2fa0b342 | 1768 | } |
1418c83b SC |
1769 | |
1770 | ||
2fa0b342 DHW |
1771 | } |
1772 | ||
1773 | /* | |
1774 | run through the input files and ensure that every input | |
1775 | section has somewhere to go. If one is found without | |
1776 | a destination then create an input request and place it | |
1777 | into the statement tree. | |
1778 | */ | |
1779 | ||
1418c83b SC |
1780 | static void |
1781 | DEFUN_VOID(lang_place_orphans) | |
2fa0b342 DHW |
1782 | { |
1783 | lang_input_statement_type *file; | |
1784 | for (file = (lang_input_statement_type*)file_chain.head; | |
1785 | file != (lang_input_statement_type*)NULL; | |
1786 | file = (lang_input_statement_type*)file->next) { | |
1787 | asection *s; | |
1788 | for (s = file->the_bfd->sections; | |
1789 | s != (asection *)NULL; | |
1790 | s = s->next) { | |
1791 | if ( s->output_section == (asection *)NULL) { | |
1792 | /* This section of the file is not attatched, root | |
1793 | around for a sensible place for it to go */ | |
1794 | ||
1795 | if (file->common_section == s) { | |
1796 | /* This is a lonely common section which must | |
1797 | have come from an archive. We attatch to the | |
1798 | section with the wildcard */ | |
1418c83b SC |
1799 | if (config.relocateable_output != true |
1800 | && command_line.force_common_definition == false) { | |
1801 | if (default_common_section == | |
1802 | (lang_output_section_statement_type *)NULL) { | |
1803 | info("%P: No [COMMON] command, defaulting to .bss\n"); | |
1804 | ||
1805 | default_common_section = | |
1806 | lang_output_section_statement_lookup(".bss"); | |
1807 | ||
1808 | } | |
1809 | wild_doit(&default_common_section->children, s, | |
1810 | default_common_section, file); | |
1811 | } | |
2fa0b342 DHW |
1812 | } |
1813 | else { | |
1814 | lang_output_section_statement_type *os = | |
1815 | lang_output_section_statement_lookup(s->name); | |
1816 | ||
1817 | wild_doit(&os->children, s, os, file); | |
1818 | } | |
1819 | } | |
1820 | } | |
2fa0b342 DHW |
1821 | } |
1822 | } | |
1823 | ||
1824 | ||
2fa0b342 | 1825 | void |
1418c83b SC |
1826 | DEFUN(lang_set_flags,(ptr, flags), |
1827 | lang_section_flags_type *ptr AND | |
1828 | CONST char *flags) | |
2fa0b342 DHW |
1829 | { |
1830 | boolean state = true; | |
1831 | ptr->flag_read = false; | |
1832 | ptr->flag_write = false; | |
1833 | ptr->flag_executable = false; | |
1834 | ptr->flag_loadable= false; | |
1835 | while (*flags) | |
1418c83b SC |
1836 | { |
1837 | if (*flags == '!') { | |
1838 | state = false; | |
1839 | flags++; | |
1840 | } | |
1841 | else state = true; | |
1842 | switch (*flags) { | |
1843 | case 'R': | |
1844 | ptr->flag_read = state; | |
1845 | break; | |
1846 | case 'W': | |
1847 | ptr->flag_write = state; | |
1848 | break; | |
1849 | case 'X': | |
1850 | ptr->flag_executable= state; | |
1851 | break; | |
1852 | case 'L': | |
1853 | ptr->flag_loadable= state; | |
1854 | break; | |
1855 | default: | |
1856 | info("%P%F illegal syntax in flags\n"); | |
1857 | break; | |
1858 | } | |
2fa0b342 DHW |
1859 | flags++; |
1860 | } | |
2fa0b342 DHW |
1861 | } |
1862 | ||
1863 | ||
1864 | ||
1865 | void | |
1418c83b SC |
1866 | DEFUN(lang_for_each_file,(func), |
1867 | PROTO(void, (*func),(lang_input_statement_type *))) | |
2fa0b342 DHW |
1868 | { |
1869 | lang_input_statement_type *f; | |
1870 | for (f = (lang_input_statement_type *)file_chain.head; | |
1871 | f != (lang_input_statement_type *)NULL; | |
1872 | f = (lang_input_statement_type *)f->next) | |
1418c83b SC |
1873 | { |
1874 | func(f); | |
1875 | } | |
2fa0b342 DHW |
1876 | } |
1877 | ||
1878 | ||
1879 | void | |
1418c83b SC |
1880 | DEFUN(lang_for_each_input_section, (func), |
1881 | PROTO(void ,(*func),(bfd *ab, asection*as))) | |
2fa0b342 DHW |
1882 | { |
1883 | lang_input_statement_type *f; | |
1884 | for (f = (lang_input_statement_type *)file_chain.head; | |
1885 | f != (lang_input_statement_type *)NULL; | |
1886 | f = (lang_input_statement_type *)f->next) | |
1887 | { | |
1888 | asection *s; | |
1889 | for (s = f->the_bfd->sections; | |
1890 | s != (asection *)NULL; | |
1891 | s = s->next) { | |
1892 | func(f->the_bfd, s); | |
1893 | } | |
1894 | } | |
1895 | } | |
1896 | ||
1897 | ||
1898 | ||
1899 | void | |
1418c83b SC |
1900 | DEFUN(ldlang_add_file,(entry), |
1901 | lang_input_statement_type *entry) | |
2fa0b342 | 1902 | { |
1418c83b | 1903 | |
2fa0b342 DHW |
1904 | lang_statement_append(&file_chain, |
1905 | (lang_statement_union_type *)entry, | |
1906 | &entry->next); | |
1907 | } | |
1908 | ||
1909 | ||
1910 | ||
1911 | void | |
1418c83b SC |
1912 | DEFUN(lang_add_output,(name), |
1913 | CONST char *name) | |
2fa0b342 DHW |
1914 | { |
1915 | lang_output_statement_type *new = new_stat(lang_output_statement, | |
1916 | stat_ptr); | |
1917 | new->name = name; | |
1918 | had_output_filename = true; | |
1919 | } | |
1920 | ||
1921 | ||
1922 | static lang_output_section_statement_type *current_section; | |
1923 | ||
1924 | void | |
1418c83b SC |
1925 | DEFUN(lang_enter_output_section_statement, |
1926 | (output_section_statement_name, | |
1927 | address_exp, | |
1928 | block_value), | |
1929 | char *output_section_statement_name AND | |
1930 | etree_type *address_exp AND | |
1931 | bfd_vma block_value) | |
2fa0b342 DHW |
1932 | { |
1933 | lang_output_section_statement_type *os; | |
1934 | current_section = | |
1935 | os = | |
1936 | lang_output_section_statement_lookup(output_section_statement_name); | |
1937 | ||
1938 | ||
1939 | /* Add this statement to tree */ | |
1940 | /* add_statement(lang_output_section_statement_enum, | |
1941 | output_section_statement);*/ | |
1942 | /* Make next things chain into subchain of this */ | |
1943 | ||
1944 | if (os->addr_tree == | |
1945 | (etree_type *)NULL) { | |
1946 | os->addr_tree = | |
1947 | address_exp; | |
1948 | } | |
1949 | os->block_value = block_value; | |
1950 | stat_ptr = & os->children; | |
1951 | ||
1952 | } | |
1953 | ||
1954 | ||
1955 | void | |
1418c83b | 1956 | DEFUN_VOID(lang_final) |
2fa0b342 DHW |
1957 | { |
1958 | if (had_output_filename == false) { | |
1959 | lang_add_output("a.out"); | |
1960 | } | |
2fa0b342 DHW |
1961 | } |
1962 | ||
1963 | ||
1964 | ||
1965 | ||
1966 | ||
1418c83b SC |
1967 | asymbol * |
1968 | DEFUN(create_symbol,(name, flags, section), | |
1969 | CONST char *name AND | |
1970 | flagword flags AND | |
1971 | asection *section) | |
2fa0b342 DHW |
1972 | { |
1973 | extern lang_input_statement_type *script_file; | |
1974 | asymbol **def_ptr = (asymbol **)ldmalloc(sizeof(asymbol **)); | |
1975 | /* Add this definition to script file */ | |
1976 | asymbol *def = (asymbol *)bfd_make_empty_symbol(script_file->the_bfd); | |
1418c83b | 1977 | def->name = buystring(name); |
2fa0b342 DHW |
1978 | def->udata = 0; |
1979 | def->flags = flags; | |
1980 | def->section = section; | |
1981 | ||
1982 | *def_ptr = def; | |
1983 | Q_enter_global_ref(def_ptr); | |
1984 | return def; | |
1985 | } | |
1986 | ||
1987 | ||
1988 | void | |
1418c83b SC |
1989 | DEFUN_VOID(lang_process) |
1990 | { | |
1991 | if (had_script == false) { | |
1992 | parse_line(ldemul_get_script()); | |
1993 | } | |
1994 | lang_reasonable_defaults(); | |
1995 | current_target = default_target; | |
1996 | ||
1997 | lang_for_each_statement(ldlang_open_output); /* Open the output file */ | |
1998 | /* For each output section statement, create a section in the output | |
1999 | file */ | |
2000 | lang_create_output_section_statements(); | |
2001 | ||
2002 | /* Create a dummy bfd for the script */ | |
2003 | lang_init_script_file(); | |
2004 | ||
2005 | /* Add to the hash table all undefineds on the command line */ | |
2006 | lang_place_undefineds(); | |
2007 | ||
2008 | /* Create a bfd for each input file */ | |
2009 | current_target = default_target; | |
2010 | lang_for_each_statement(open_input_bfds); | |
2011 | ||
2012 | common_section.userdata = &common_section_userdata; | |
2013 | ||
2014 | /* Run through the contours of the script and attatch input sections | |
2015 | to the correct output sections | |
2016 | */ | |
2017 | map_input_to_output_sections(statement_list.head, (char *)NULL, | |
2018 | ( lang_output_section_statement_type *)NULL); | |
2019 | ||
2020 | /* Find any sections not attatched explicitly and handle them */ | |
2021 | lang_place_orphans(); | |
2022 | ||
2023 | /* Size up the common data */ | |
2024 | lang_common(); | |
2025 | ||
2026 | ldemul_before_allocation(); | |
2027 | ||
2028 | /* Size up the sections */ | |
2029 | lang_size_sections(statement_list.head, | |
2030 | (lang_output_section_statement_type *)NULL, | |
2031 | &(statement_list.head), 0, (bfd_vma)0); | |
2032 | ||
2033 | /* See if anything special should be done now we know how big | |
2034 | everything is */ | |
2035 | ldemul_after_allocation(); | |
2036 | ||
2037 | /* Do all the assignments, now that we know the final restingplaces | |
2038 | of all the symbols */ | |
2039 | ||
2040 | lang_do_assignments(statement_list.head, | |
2041 | (lang_output_section_statement_type *)NULL, | |
2042 | 0, (bfd_vma)0); | |
2043 | ||
2044 | /* Make sure that we're not mixing architectures */ | |
2045 | ||
2046 | lang_check(); | |
2047 | ||
2048 | /* Move the global symbols around */ | |
2049 | lang_relocate_globals(); | |
2050 | ||
2051 | /* Final stuffs */ | |
2052 | lang_finish(); | |
2fa0b342 DHW |
2053 | } |
2054 | ||
2055 | ||
2056 | /* EXPORTED TO YACC */ | |
1418c83b | 2057 | |
2fa0b342 | 2058 | void |
1418c83b SC |
2059 | DEFUN(lang_add_wild,(section_name, filename), |
2060 | CONST char *CONST section_name AND | |
2061 | CONST char *CONST filename) | |
2062 | { | |
2063 | lang_wild_statement_type *new = new_stat(lang_wild_statement, | |
2064 | stat_ptr); | |
2065 | ||
2066 | if (section_name != (char *)NULL && strcmp(section_name,"COMMON") == 0) | |
2067 | { | |
2068 | placed_commons = true; | |
2069 | } | |
2070 | if (filename != (char *)NULL) { | |
2071 | lang_has_input_file = true; | |
2072 | } | |
2073 | new->section_name = section_name; | |
2074 | new->filename = filename; | |
2075 | lang_list_init(&new->children); | |
2076 | } | |
2077 | void | |
2078 | DEFUN(lang_section_start,(name, address), | |
2079 | CONST char *name AND | |
2080 | etree_type *address) | |
2fa0b342 DHW |
2081 | { |
2082 | lang_address_statement_type *ad =new_stat(lang_address_statement, stat_ptr); | |
2083 | ad->section_name = name; | |
2084 | ad->address = address; | |
2085 | } | |
1418c83b SC |
2086 | |
2087 | void | |
2088 | DEFUN(lang_add_entry,(name), | |
2089 | CONST char *name) | |
2fa0b342 DHW |
2090 | { |
2091 | entry_symbol = name; | |
2092 | } | |
2093 | ||
2094 | void | |
1418c83b SC |
2095 | DEFUN(lang_add_target,(name), |
2096 | CONST char *name) | |
2fa0b342 DHW |
2097 | { |
2098 | lang_target_statement_type *new = new_stat(lang_target_statement, | |
2099 | stat_ptr); | |
2100 | new->target = name; | |
2101 | ||
2102 | } | |
2fa0b342 | 2103 | |
1418c83b SC |
2104 | |
2105 | ||
2fa0b342 DHW |
2106 | |
2107 | void | |
1418c83b SC |
2108 | DEFUN(lang_add_map,(name), |
2109 | CONST char *name) | |
2fa0b342 DHW |
2110 | { |
2111 | while (*name) { | |
2112 | switch (*name) { | |
2113 | case 'F': | |
2114 | map_option_f = true; | |
2115 | break; | |
2116 | } | |
2117 | name++; | |
2118 | } | |
2119 | } | |
2120 | ||
1418c83b SC |
2121 | void |
2122 | DEFUN(lang_add_fill,(exp), | |
2123 | int exp) | |
2fa0b342 DHW |
2124 | { |
2125 | lang_fill_statement_type *new = new_stat(lang_fill_statement, | |
2126 | stat_ptr); | |
2127 | new->fill = exp; | |
2128 | } | |
2129 | ||
1418c83b SC |
2130 | void |
2131 | DEFUN(lang_add_data,(type, exp), | |
2132 | int type AND | |
2133 | union etree_union *exp) | |
2fa0b342 DHW |
2134 | { |
2135 | ||
2136 | lang_data_statement_type *new = new_stat(lang_data_statement, | |
2137 | stat_ptr); | |
2138 | new->exp = exp; | |
2139 | new->type = type; | |
2140 | ||
2141 | } | |
2142 | void | |
1418c83b SC |
2143 | DEFUN(lang_add_assignment,(exp), |
2144 | etree_type *exp) | |
2fa0b342 DHW |
2145 | { |
2146 | lang_assignment_statement_type *new = new_stat(lang_assignment_statement, | |
2147 | stat_ptr); | |
2148 | new->exp = exp; | |
2149 | } | |
2150 | ||
2151 | void | |
1418c83b SC |
2152 | DEFUN(lang_add_attribute,(attribute), |
2153 | enum statement_enum attribute) | |
2fa0b342 DHW |
2154 | { |
2155 | new_statement(attribute, sizeof(lang_statement_union_type),stat_ptr); | |
2156 | } | |
2157 | ||
2158 | ||
2159 | ||
2160 | void | |
1418c83b SC |
2161 | DEFUN(lang_startup,(name), |
2162 | CONST char *name) | |
2fa0b342 DHW |
2163 | { |
2164 | if (startup_file != (char *)NULL) { | |
2165 | info("%P%FMultiple STARTUP files\n"); | |
2166 | } | |
2167 | first_file->filename = name; | |
2168 | first_file->local_sym_name = name; | |
2169 | ||
2170 | startup_file= name; | |
2171 | } | |
2172 | void | |
1418c83b SC |
2173 | DEFUN(lang_float,(maybe), |
2174 | boolean maybe) | |
2fa0b342 DHW |
2175 | { |
2176 | lang_float_flag = maybe; | |
2177 | } | |
2178 | ||
2179 | void | |
1418c83b SC |
2180 | DEFUN(lang_leave_output_section_statement,(fill, memspec), |
2181 | bfd_vma fill AND | |
2182 | CONST char *memspec) | |
2fa0b342 DHW |
2183 | { |
2184 | current_section->fill = fill; | |
2185 | current_section->region = lang_memory_region_lookup(memspec); | |
2186 | stat_ptr = &statement_list; | |
2187 | } | |
9f32f7c2 SC |
2188 | /* |
2189 | Create an absolute symbol with the given name with the value of the | |
2190 | address of first byte of the section named. | |
2fa0b342 | 2191 | |
9f32f7c2 SC |
2192 | If the symbol already exists, then do nothing. |
2193 | */ | |
8cb5eb31 | 2194 | void |
1418c83b SC |
2195 | DEFUN(lang_abs_symbol_at_beginning_of,(section, name), |
2196 | CONST char *section AND | |
2197 | CONST char *name) | |
8cb5eb31 | 2198 | { |
c660714f | 2199 | if (ldsym_undefined(name)) { |
9f32f7c2 SC |
2200 | extern bfd *output_bfd; |
2201 | extern asymbol *create_symbol(); | |
2202 | asection *s = bfd_get_section_by_name(output_bfd, section); | |
2203 | asymbol *def = create_symbol(name, | |
2204 | BSF_GLOBAL | BSF_EXPORT | | |
2205 | BSF_ABSOLUTE, | |
2206 | (asection *)NULL); | |
2207 | if (s != (asection *)NULL) { | |
2208 | def->value = s->vma; | |
2209 | } | |
2210 | else { | |
2211 | def->value = 0; | |
2212 | } | |
8cb5eb31 SC |
2213 | } |
2214 | } | |
2215 | ||
9f32f7c2 SC |
2216 | /* |
2217 | Create an absolute symbol with the given name with the value of the | |
2218 | address of the first byte after the end of the section named. | |
2219 | ||
2220 | If the symbol already exists, then do nothing. | |
2221 | */ | |
2fa0b342 | 2222 | void |
1418c83b SC |
2223 | DEFUN(lang_abs_symbol_at_end_of,(section, name), |
2224 | CONST char *section AND | |
2225 | CONST char *name) | |
2fa0b342 | 2226 | { |
c660714f | 2227 | if (ldsym_undefined(name)){ |
9f32f7c2 SC |
2228 | extern bfd *output_bfd; |
2229 | extern asymbol *create_symbol(); | |
2230 | asection *s = bfd_get_section_by_name(output_bfd, section); | |
2231 | /* Add a symbol called _end */ | |
2232 | asymbol *def = create_symbol(name, | |
2233 | BSF_GLOBAL | BSF_EXPORT | | |
2234 | BSF_ABSOLUTE, | |
2235 | (asection *)NULL); | |
2236 | if (s != (asection *)NULL) { | |
2237 | def->value = s->vma + s->size; | |
2238 | } | |
2239 | else { | |
2240 | def->value = 0; | |
2241 | } | |
2fa0b342 DHW |
2242 | } |
2243 | } | |
2244 | ||
2245 | void | |
1418c83b SC |
2246 | DEFUN(lang_statement_append,(list, element, field), |
2247 | lang_statement_list_type *list AND | |
2248 | lang_statement_union_type *element AND | |
2249 | lang_statement_union_type **field) | |
2fa0b342 DHW |
2250 | { |
2251 | *(list->tail) = element; | |
2252 | list->tail = field; | |
2253 | } | |
2254 | ||
097879bc SC |
2255 | /* Set the output format type */ |
2256 | void | |
2257 | DEFUN(lang_add_output_format,(format), | |
2258 | CONST char *format) | |
2259 | { | |
2260 | output_target = format; | |
2261 | } |