Commit | Line | Data |
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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" | |
7bc4a0d7 | 31 | #include "ldgram.h" |
81016051 | 32 | #include "ldwarn.h" |
2fa0b342 DHW |
33 | #include "ldlang.h" |
34 | #include "ldexp.h" | |
8c514453 | 35 | #include "ldemul.h" |
2fa0b342 | 36 | #include "ldlex.h" |
3f8d46e7 | 37 | #include "ldmisc.h" |
2fa0b342 DHW |
38 | /* FORWARDS */ |
39 | PROTO(static void, print_statements,(void)); | |
40 | PROTO(static void, print_statement,(lang_statement_union_type *, | |
41 | lang_output_section_statement_type *)); | |
42 | ||
43 | ||
d4c02e29 SC |
44 | /* LOCALS */ |
45 | static CONST char *startup_file; | |
46 | static lang_statement_list_type input_file_chain; | |
81016051 SC |
47 | |
48 | /* Points to the last statement in the .data section, so we can add | |
49 | stuff to the data section without pain */ | |
50 | static lang_statement_list_type end_of_data_section_statement_list; | |
51 | ||
52 | /* List of statements needed to handle consxtructors */ | |
53 | static lang_statement_list_type constructor_list; | |
54 | ||
d4c02e29 SC |
55 | static boolean placed_commons = false; |
56 | static lang_output_section_statement_type *default_common_section; | |
57 | static boolean map_option_f; | |
58 | static bfd_vma print_dot; | |
59 | static lang_input_statement_type *first_file; | |
60 | static lang_statement_list_type lang_output_section_statement; | |
61 | static CONST char *current_target; | |
62 | static CONST char *output_target; | |
63 | static size_t longest_section_name = 8; | |
64 | static asection common_section; | |
65 | static section_userdata_type common_section_userdata; | |
66 | static lang_statement_list_type statement_list; | |
2fa0b342 | 67 | /* EXPORTS */ |
2fa0b342 | 68 | |
d4c02e29 SC |
69 | lang_statement_list_type *stat_ptr = &statement_list; |
70 | lang_input_statement_type *script_file = 0; | |
71 | boolean option_longmap = false; | |
72 | lang_statement_list_type file_chain = {0}; | |
73 | CONST char *entry_symbol = 0; | |
3f8d46e7 | 74 | bfd_size_type largest_section = 0; |
d4c02e29 SC |
75 | boolean lang_has_input_file = false; |
76 | lang_output_section_statement_type *create_object_symbols = 0; | |
77 | boolean had_output_filename = false; | |
78 | boolean lang_float_flag = false; | |
79 | /* IMPORTS */ | |
80 | extern char *default_target; | |
2fa0b342 | 81 | |
d4c02e29 SC |
82 | extern unsigned int undefined_global_sym_count; |
83 | extern char *current_file; | |
2fa0b342 | 84 | extern bfd *output_bfd; |
2fa0b342 DHW |
85 | extern enum bfd_architecture ldfile_output_architecture; |
86 | extern unsigned long ldfile_output_machine; | |
87 | extern char *ldfile_output_machine_name; | |
2fa0b342 | 88 | extern ldsym_type *symbol_head; |
d4c02e29 | 89 | extern unsigned int commons_pending; |
2fa0b342 DHW |
90 | extern args_type command_line; |
91 | extern ld_config_type config; | |
2fa0b342 | 92 | extern boolean had_script; |
2fa0b342 DHW |
93 | extern boolean write_map; |
94 | ||
95 | ||
2fa0b342 DHW |
96 | #ifdef __STDC__ |
97 | #define cat(a,b) a##b | |
98 | #else | |
99 | #define cat(a,b) a/**/b | |
100 | #endif | |
101 | ||
102 | #define new_stat(x,y) (cat(x,_type)*) new_statement(cat(x,_enum), sizeof(cat(x,_type)),y) | |
103 | ||
104 | #define outside_section_address(q) ( (q)->output_offset + (q)->output_section->vma) | |
105 | ||
106 | #define outside_symbol_address(q) ((q)->value + outside_section_address(q->section)) | |
107 | ||
b648e172 | 108 | void EXFUN(lang_add_data,( int type , union etree_union *exp)); |
81016051 | 109 | |
3f8d46e7 JG |
110 | static void |
111 | DEFUN(print_size,(value), | |
112 | size_t value) | |
113 | { | |
114 | printf("%5x", (unsigned)value); | |
115 | } | |
116 | static void | |
117 | DEFUN(print_alignment,(value), | |
118 | unsigned int value) | |
119 | { | |
48491e2e | 120 | printf("2**%1u",value); |
3f8d46e7 JG |
121 | } |
122 | static void | |
123 | DEFUN(print_fill,(value), | |
124 | fill_type value) | |
125 | { | |
126 | printf("%04x",(unsigned)value); | |
127 | } | |
128 | ||
d4c02e29 | 129 | |
3f8d46e7 JG |
130 | static void |
131 | DEFUN(print_section,(name), | |
132 | CONST char *CONST name) | |
133 | { | |
134 | printf("%*s", -longest_section_name, name); | |
135 | } | |
2fa0b342 | 136 | |
1418c83b SC |
137 | /*---------------------------------------------------------------------- |
138 | lang_for_each_statement walks the parse tree and calls the provided | |
139 | function for each node | |
140 | */ | |
141 | ||
142 | static void | |
143 | DEFUN(lang_for_each_statement_worker,(func, s), | |
144 | void (*func)() AND | |
145 | lang_statement_union_type *s) | |
146 | { | |
147 | for (; s != (lang_statement_union_type *)NULL ; s = s->next) | |
148 | { | |
149 | func(s); | |
150 | ||
151 | switch (s->header.type) { | |
81016051 SC |
152 | case lang_constructors_statement_enum: |
153 | lang_for_each_statement_worker(func, constructor_list.head); | |
154 | break; | |
1418c83b SC |
155 | case lang_output_section_statement_enum: |
156 | lang_for_each_statement_worker | |
157 | (func, | |
158 | s->output_section_statement.children.head); | |
159 | break; | |
160 | case lang_wild_statement_enum: | |
161 | lang_for_each_statement_worker | |
162 | (func, | |
163 | s->wild_statement.children.head); | |
164 | break; | |
165 | case lang_data_statement_enum: | |
166 | case lang_object_symbols_statement_enum: | |
167 | case lang_output_statement_enum: | |
168 | case lang_target_statement_enum: | |
169 | case lang_input_section_enum: | |
170 | case lang_input_statement_enum: | |
171 | case lang_fill_statement_enum: | |
172 | case lang_assignment_statement_enum: | |
173 | case lang_padding_statement_enum: | |
174 | case lang_address_statement_enum: | |
175 | break; | |
176 | default: | |
177 | FAIL(); | |
178 | break; | |
179 | } | |
180 | } | |
181 | } | |
182 | ||
183 | void | |
184 | DEFUN(lang_for_each_statement,(func), | |
185 | void (*func)()) | |
186 | { | |
187 | lang_for_each_statement_worker(func, | |
188 | statement_list.head); | |
189 | } | |
190 | /*----------------------------------------------------------------------*/ | |
191 | static void | |
192 | DEFUN(lang_list_init,(list), | |
193 | lang_statement_list_type *list) | |
2fa0b342 DHW |
194 | { |
195 | list->head = (lang_statement_union_type *)NULL; | |
196 | list->tail = &list->head; | |
197 | } | |
198 | ||
2fa0b342 | 199 | |
1418c83b SC |
200 | /*---------------------------------------------------------------------- |
201 | ||
202 | build a new statement node for the parse tree | |
203 | ||
204 | */ | |
2fa0b342 DHW |
205 | |
206 | static | |
1418c83b SC |
207 | lang_statement_union_type* |
208 | DEFUN(new_statement,(type, size, list), | |
209 | enum statement_enum type AND | |
3f8d46e7 | 210 | bfd_size_type size AND |
1418c83b | 211 | lang_statement_list_type *list) |
2fa0b342 DHW |
212 | { |
213 | lang_statement_union_type *new = (lang_statement_union_type *) | |
214 | ldmalloc(size); | |
215 | new->header.type = type; | |
216 | new->header.next = (lang_statement_union_type *)NULL; | |
1418c83b | 217 | lang_statement_append(list, new, &new->header.next); |
2fa0b342 DHW |
218 | return new; |
219 | } | |
220 | ||
1418c83b SC |
221 | /* |
222 | Build a new input file node for the language. There are several ways | |
223 | in which we treat an input file, eg, we only look at symbols, or | |
224 | prefix it with a -l etc. | |
225 | ||
226 | We can be supplied with requests for input files more than once; | |
227 | they may, for example be split over serveral lines like foo.o(.text) | |
228 | foo.o(.data) etc, so when asked for a file we check that we havn't | |
229 | got it already so we don't duplicate the bfd. | |
230 | ||
231 | */ | |
2fa0b342 | 232 | static lang_input_statement_type * |
1418c83b SC |
233 | DEFUN(new_afile, (name, file_type, target), |
234 | CONST char *CONST name AND | |
235 | CONST lang_input_file_enum_type file_type AND | |
236 | CONST char *CONST target) | |
2fa0b342 DHW |
237 | { |
238 | lang_input_statement_type *p = new_stat(lang_input_statement, | |
239 | stat_ptr); | |
240 | lang_has_input_file = true; | |
241 | p->target = target; | |
242 | switch (file_type) { | |
243 | case lang_input_file_is_symbols_only_enum: | |
244 | p->filename = name; | |
245 | p->is_archive =false; | |
246 | p->real = true; | |
247 | p->local_sym_name= name; | |
248 | p->just_syms_flag = true; | |
249 | p->search_dirs_flag = false; | |
250 | break; | |
251 | case lang_input_file_is_fake_enum: | |
252 | p->filename = name; | |
253 | p->is_archive =false; | |
254 | p->real = false; | |
255 | p->local_sym_name= name; | |
256 | p->just_syms_flag = false; | |
257 | p->search_dirs_flag =false; | |
2fa0b342 DHW |
258 | break; |
259 | case lang_input_file_is_l_enum: | |
260 | p->is_archive = true; | |
261 | p->filename = name; | |
262 | p->real = true; | |
263 | p->local_sym_name = concat("-l",name,""); | |
264 | p->just_syms_flag = false; | |
265 | p->search_dirs_flag = true; | |
266 | break; | |
2fa0b342 DHW |
267 | case lang_input_file_is_search_file_enum: |
268 | case lang_input_file_is_marker_enum: | |
269 | p->filename = name; | |
270 | p->is_archive =false; | |
271 | p->real = true; | |
272 | p->local_sym_name= name; | |
273 | p->just_syms_flag = false; | |
274 | p->search_dirs_flag =true; | |
275 | break; | |
2fa0b342 DHW |
276 | case lang_input_file_is_file_enum: |
277 | p->filename = name; | |
278 | p->is_archive =false; | |
279 | p->real = true; | |
280 | p->local_sym_name= name; | |
281 | p->just_syms_flag = false; | |
282 | p->search_dirs_flag =false; | |
283 | break; | |
2fa0b342 DHW |
284 | default: |
285 | FAIL(); | |
286 | } | |
287 | p->asymbols = (asymbol **)NULL; | |
288 | p->superfile = (lang_input_statement_type *)NULL; | |
2fa0b342 DHW |
289 | p->next_real_file = (lang_statement_union_type*)NULL; |
290 | p->next = (lang_statement_union_type*)NULL; | |
291 | p->symbol_count = 0; | |
292 | p->common_output_section = (asection *)NULL; | |
2fa0b342 DHW |
293 | lang_statement_append(&input_file_chain, |
294 | (lang_statement_union_type *)p, | |
295 | &p->next_real_file); | |
296 | return p; | |
297 | } | |
298 | ||
1418c83b SC |
299 | |
300 | ||
2fa0b342 | 301 | lang_input_statement_type * |
1418c83b SC |
302 | DEFUN(lang_add_input_file,(name, file_type, target), |
303 | char *name AND | |
304 | lang_input_file_enum_type file_type AND | |
305 | char *target) | |
2fa0b342 DHW |
306 | { |
307 | /* Look it up or build a new one */ | |
1418c83b SC |
308 | lang_has_input_file = true; |
309 | #if 0 | |
2fa0b342 DHW |
310 | lang_input_statement_type *p; |
311 | ||
312 | for (p = (lang_input_statement_type *)input_file_chain.head; | |
313 | p != (lang_input_statement_type *)NULL; | |
314 | p = (lang_input_statement_type *)(p->next_real_file)) | |
1418c83b SC |
315 | { |
316 | /* Sometimes we have incomplete entries in here */ | |
317 | if (p->filename != (char *)NULL) { | |
318 | if(strcmp(name,p->filename) == 0) return p; | |
319 | } | |
320 | ||
321 | } | |
322 | #endif | |
2fa0b342 DHW |
323 | return new_afile(name, file_type, target); |
324 | } | |
325 | ||
326 | ||
1418c83b | 327 | /* Build enough state so that the parser can build its tree */ |
2fa0b342 | 328 | void |
1418c83b | 329 | DEFUN_VOID(lang_init) |
2fa0b342 DHW |
330 | { |
331 | ||
332 | stat_ptr= &statement_list; | |
333 | lang_list_init(stat_ptr); | |
334 | ||
335 | lang_list_init(&input_file_chain); | |
336 | lang_list_init(&lang_output_section_statement); | |
337 | lang_list_init(&file_chain); | |
338 | first_file = lang_add_input_file((char *)NULL, | |
339 | lang_input_file_is_marker_enum, | |
340 | (char *)NULL); | |
2fa0b342 DHW |
341 | } |
342 | ||
2fa0b342 | 343 | |
1418c83b SC |
344 | /*---------------------------------------------------------------------- |
345 | A region is an area of memory declared with the | |
346 | MEMORY { name:org=exp, len=exp ... } | |
347 | syntax. | |
2fa0b342 | 348 | |
1418c83b | 349 | We maintain a list of all the regions here |
2fa0b342 | 350 | |
1418c83b SC |
351 | If no regions are specified in the script, then the default is used |
352 | which is created when looked up to be the entire data space | |
2fa0b342 DHW |
353 | */ |
354 | ||
355 | static lang_memory_region_type *lang_memory_region_list; | |
356 | static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list; | |
357 | ||
358 | lang_memory_region_type * | |
1418c83b SC |
359 | DEFUN(lang_memory_region_lookup,(name), |
360 | CONST char *CONST name) | |
2fa0b342 DHW |
361 | { |
362 | ||
1418c83b SC |
363 | lang_memory_region_type *p = lang_memory_region_list; |
364 | for (p = lang_memory_region_list; | |
365 | p != ( lang_memory_region_type *)NULL; | |
366 | p = p->next) { | |
367 | if (strcmp(p->name, name) == 0) { | |
368 | return p; | |
2fa0b342 | 369 | } |
1418c83b SC |
370 | } |
371 | if (strcmp(name,"*default*")==0) { | |
372 | /* This is the default region, dig out first one on the list */ | |
373 | if (lang_memory_region_list != (lang_memory_region_type*)NULL){ | |
374 | return lang_memory_region_list; | |
2fa0b342 | 375 | } |
1418c83b | 376 | } |
2fa0b342 | 377 | { |
1418c83b | 378 | lang_memory_region_type *new = |
3f8d46e7 | 379 | (lang_memory_region_type *)ldmalloc((bfd_size_type)(sizeof(lang_memory_region_type))); |
1418c83b SC |
380 | new->name = buystring(name); |
381 | new->next = (lang_memory_region_type *)NULL; | |
382 | ||
383 | *lang_memory_region_list_tail = new; | |
384 | lang_memory_region_list_tail = &new->next; | |
385 | new->origin = 0; | |
386 | new->length = ~0; | |
387 | new->current = 0; | |
388 | return new; | |
2fa0b342 DHW |
389 | } |
390 | } | |
391 | ||
392 | ||
2fa0b342 | 393 | lang_output_section_statement_type * |
1418c83b SC |
394 | DEFUN(lang_output_section_find,(name), |
395 | CONST char * CONST name) | |
2fa0b342 DHW |
396 | { |
397 | lang_statement_union_type *u; | |
398 | lang_output_section_statement_type *lookup; | |
399 | ||
400 | for (u = lang_output_section_statement.head; | |
401 | u != (lang_statement_union_type *)NULL; | |
402 | u = lookup->next) | |
1418c83b SC |
403 | { |
404 | lookup = &u->output_section_statement; | |
405 | if (strcmp(name, lookup->name)==0) { | |
406 | return lookup; | |
407 | } | |
2fa0b342 | 408 | } |
2fa0b342 DHW |
409 | return (lang_output_section_statement_type *)NULL; |
410 | } | |
411 | ||
412 | lang_output_section_statement_type * | |
1418c83b SC |
413 | DEFUN(lang_output_section_statement_lookup,(name), |
414 | CONST char * CONST name) | |
2fa0b342 DHW |
415 | { |
416 | lang_output_section_statement_type *lookup; | |
417 | lookup =lang_output_section_find(name); | |
418 | if (lookup == (lang_output_section_statement_type *)NULL) { | |
419 | ||
420 | lookup =(lang_output_section_statement_type *) | |
421 | new_stat(lang_output_section_statement, stat_ptr); | |
422 | lookup->region = (lang_memory_region_type *)NULL; | |
423 | lookup->fill = 0; | |
424 | lookup->block_value = 1; | |
425 | lookup->name = name; | |
426 | ||
427 | lookup->next = (lang_statement_union_type*)NULL; | |
428 | lookup->bfd_section = (asection *)NULL; | |
429 | lookup->processed = false; | |
430 | lookup->addr_tree = (etree_type *)NULL; | |
431 | lang_list_init(&lookup->children); | |
432 | ||
433 | lang_statement_append(&lang_output_section_statement, | |
434 | (lang_statement_union_type *)lookup, | |
435 | &lookup->next); | |
436 | } | |
437 | return lookup; | |
438 | } | |
439 | ||
440 | ||
441 | ||
442 | ||
443 | ||
444 | static void | |
1418c83b SC |
445 | DEFUN(print_flags, (outfile, ignore_flags), |
446 | FILE *outfile AND | |
7bc4a0d7 | 447 | int *ignore_flags) |
2fa0b342 DHW |
448 | { |
449 | fprintf(outfile,"("); | |
450 | #if 0 | |
451 | if (flags->flag_read) fprintf(outfile,"R"); | |
452 | if (flags->flag_write) fprintf(outfile,"W"); | |
453 | if (flags->flag_executable) fprintf(outfile,"X"); | |
454 | if (flags->flag_loadable) fprintf(outfile,"L"); | |
455 | #endif | |
456 | fprintf(outfile,")"); | |
457 | } | |
458 | ||
459 | void | |
1418c83b SC |
460 | DEFUN(lang_map,(outfile), |
461 | FILE *outfile) | |
2fa0b342 DHW |
462 | { |
463 | lang_memory_region_type *m; | |
464 | fprintf(outfile,"**MEMORY CONFIGURATION**\n\n"); | |
48491e2e | 465 | #ifdef HOST_64_BIT |
2fa0b342 | 466 | fprintf(outfile,"name\t\torigin\t\tlength\t\tattributes\n"); |
48491e2e SC |
467 | #else |
468 | fprintf(outfile,"name\t\torigin length\t\tattributes\n"); | |
469 | #endif | |
2fa0b342 DHW |
470 | for (m = lang_memory_region_list; |
471 | m != (lang_memory_region_type *)NULL; | |
472 | m = m->next) | |
473 | { | |
474 | fprintf(outfile,"%-16s", m->name); | |
3f8d46e7 JG |
475 | print_address(m->origin); |
476 | print_space(); | |
477 | print_address(m->length); | |
478 | print_space(); | |
2fa0b342 DHW |
479 | print_flags(outfile, &m->flags); |
480 | fprintf(outfile,"\n"); | |
481 | } | |
482 | fprintf(outfile,"\n\n**LINK EDITOR MEMORY MAP**\n\n"); | |
48491e2e SC |
483 | fprintf(outfile,"output input virtual\n"); |
484 | fprintf(outfile,"section section address tsize\n\n"); | |
2fa0b342 DHW |
485 | |
486 | print_statements(); | |
487 | ||
488 | } | |
489 | ||
490 | /* | |
491 | * | |
492 | */ | |
1418c83b SC |
493 | static void |
494 | DEFUN(init_os,(s), | |
495 | lang_output_section_statement_type *s) | |
2fa0b342 DHW |
496 | { |
497 | section_userdata_type *new = | |
498 | (section_userdata_type *) | |
3f8d46e7 | 499 | ldmalloc((bfd_size_type)(sizeof(section_userdata_type))); |
2fa0b342 DHW |
500 | |
501 | s->bfd_section = bfd_make_section(output_bfd, s->name); | |
357a1f38 SC |
502 | if (s->bfd_section == (asection *)NULL) { |
503 | info("%P%F output format %s cannot represent section called %s\n", | |
504 | output_bfd->xvec->name, | |
505 | s->name); | |
506 | } | |
2fa0b342 | 507 | s->bfd_section->output_section = s->bfd_section; |
7bc4a0d7 SC |
508 | /* s->bfd_section->flags = s->flags;*/ |
509 | ||
2fa0b342 DHW |
510 | /* We initialize an output sections output offset to minus its own */ |
511 | /* vma to allow us to output a section through itself */ | |
512 | s->bfd_section->output_offset = 0; | |
a0ad3035 | 513 | get_userdata( s->bfd_section) = (PTR)new; |
2fa0b342 DHW |
514 | } |
515 | ||
1418c83b SC |
516 | /*********************************************************************** |
517 | The wild routines. | |
518 | ||
519 | These expand statements like *(.text) and foo.o to a list of | |
520 | explicit actions, like foo.o(.text), bar.o(.text) and | |
521 | foo.o(.text,.data) . | |
522 | ||
523 | The toplevel routine, wild, takes a statement, section, file and | |
524 | target. If either the section or file is null it is taken to be the | |
525 | wildcard. Seperate lang_input_section statements are created for | |
526 | each part of the expanstion, and placed after the statement provided. | |
527 | ||
528 | */ | |
529 | ||
2fa0b342 | 530 | static void |
1418c83b SC |
531 | DEFUN(wild_doit,(ptr, section, output, file), |
532 | lang_statement_list_type *ptr AND | |
533 | asection *section AND | |
534 | lang_output_section_statement_type *output AND | |
535 | lang_input_statement_type *file) | |
2fa0b342 DHW |
536 | { |
537 | if(output->bfd_section == (asection *)NULL) | |
538 | { | |
539 | init_os(output); | |
540 | } | |
541 | ||
542 | if (section != (asection *)NULL | |
543 | && section->output_section == (asection *)NULL) { | |
544 | /* Add a section reference to the list */ | |
545 | lang_input_section_type *new = new_stat(lang_input_section, ptr); | |
546 | ||
547 | new->section = section; | |
548 | new->ifile = file; | |
549 | section->output_section = output->bfd_section; | |
550 | section->output_section->flags |= section->flags; | |
551 | if (section->alignment_power > output->bfd_section->alignment_power) { | |
552 | output->bfd_section->alignment_power = section->alignment_power; | |
553 | } | |
2fa0b342 DHW |
554 | } |
555 | } | |
556 | ||
557 | static asection * | |
1418c83b SC |
558 | DEFUN(our_bfd_get_section_by_name,(abfd, section), |
559 | bfd *abfd AND | |
560 | CONST char *section) | |
2fa0b342 DHW |
561 | { |
562 | return bfd_get_section_by_name(abfd, section); | |
2fa0b342 | 563 | } |
1418c83b | 564 | |
2fa0b342 | 565 | static void |
1418c83b SC |
566 | DEFUN(wild_section,(ptr, section, file , output), |
567 | lang_wild_statement_type *ptr AND | |
568 | CONST char *section AND | |
569 | lang_input_statement_type *file AND | |
570 | lang_output_section_statement_type *output) | |
2fa0b342 DHW |
571 | { |
572 | asection *s; | |
1418c83b SC |
573 | if (file->just_syms_flag == false) { |
574 | if (section == (char *)NULL) { | |
575 | /* Do the creation to all sections in the file */ | |
576 | for (s = file->the_bfd->sections; s != (asection *)NULL; s=s->next) { | |
577 | wild_doit(&ptr->children, s, output, file); | |
578 | } | |
579 | } | |
580 | else { | |
581 | /* Do the creation to the named section only */ | |
582 | wild_doit(&ptr->children, | |
583 | our_bfd_get_section_by_name(file->the_bfd, section), | |
584 | output, file); | |
2fa0b342 DHW |
585 | } |
586 | } | |
2fa0b342 DHW |
587 | } |
588 | ||
589 | ||
1418c83b SC |
590 | /* passed a file name (which must have been seen already and added to |
591 | the statement tree. We will see if it has been opened already and | |
592 | had its symbols read. If not then we'll read it. | |
2fa0b342 | 593 | |
1418c83b SC |
594 | Archives are pecuilar here. We may open them once, but if they do |
595 | not define anything we need at the time, they won't have all their | |
596 | symbols read. If we need them later, we'll have to redo it. | |
597 | */ | |
2fa0b342 | 598 | static |
1418c83b SC |
599 | lang_input_statement_type * |
600 | DEFUN(lookup_name,(name), | |
601 | CONST char * CONST name) | |
2fa0b342 DHW |
602 | { |
603 | lang_input_statement_type *search; | |
604 | for(search = (lang_input_statement_type *)input_file_chain.head; | |
605 | search != (lang_input_statement_type *)NULL; | |
606 | search = (lang_input_statement_type *)search->next_real_file) | |
1418c83b SC |
607 | { |
608 | if (search->filename == (char *)NULL && name == (char *)NULL) { | |
2fa0b342 DHW |
609 | return search; |
610 | } | |
1418c83b SC |
611 | if (search->filename != (char *)NULL && name != (char *)NULL) { |
612 | if (strcmp(search->filename, name) == 0) { | |
613 | ldmain_open_file_read_symbol(search); | |
614 | return search; | |
615 | } | |
616 | } | |
2fa0b342 | 617 | } |
2fa0b342 | 618 | |
1418c83b SC |
619 | /* There isn't an afile entry for this file yet, this must be |
620 | because the name has only appeared inside a load script and not | |
621 | on the command line */ | |
622 | search = new_afile(name, lang_input_file_is_file_enum, default_target); | |
623 | ldmain_open_file_read_symbol(search); | |
2fa0b342 | 624 | return search; |
1418c83b SC |
625 | |
626 | ||
2fa0b342 DHW |
627 | } |
628 | ||
629 | static void | |
1418c83b SC |
630 | DEFUN(wild,(s, section, file, target, output), |
631 | lang_wild_statement_type *s AND | |
632 | CONST char *CONST section AND | |
633 | CONST char *CONST file AND | |
634 | CONST char *CONST target AND | |
635 | lang_output_section_statement_type *output) | |
2fa0b342 DHW |
636 | { |
637 | lang_input_statement_type *f; | |
638 | if (file == (char *)NULL) { | |
639 | /* Perform the iteration over all files in the list */ | |
640 | for (f = (lang_input_statement_type *)file_chain.head; | |
641 | f != (lang_input_statement_type *)NULL; | |
642 | f = (lang_input_statement_type *)f->next) { | |
643 | wild_section(s, section, f, output); | |
644 | } | |
645 | } | |
646 | else { | |
647 | /* Perform the iteration over a single file */ | |
1418c83b | 648 | wild_section( s, section, lookup_name(file), output); |
2fa0b342 | 649 | } |
b0f36869 SC |
650 | if (section != (char *)NULL |
651 | && strcmp(section,"COMMON") == 0 | |
1418c83b SC |
652 | && default_common_section == (lang_output_section_statement_type*)NULL) |
653 | { | |
654 | /* Remember the section that common is going to incase we later | |
655 | get something which doesn't know where to put it */ | |
656 | default_common_section = output; | |
657 | } | |
2fa0b342 DHW |
658 | } |
659 | ||
660 | /* | |
661 | read in all the files | |
662 | */ | |
663 | static bfd * | |
097879bc SC |
664 | DEFUN(open_output,(name), |
665 | CONST char *CONST name) | |
2fa0b342 | 666 | { |
1418c83b | 667 | extern CONST char *output_filename; |
097879bc SC |
668 | bfd *output; |
669 | if (output_target == (char *)NULL) { | |
670 | if (current_target != (char *)NULL) | |
671 | output_target = current_target; | |
672 | else | |
673 | output_target = default_target; | |
674 | } | |
675 | output = bfd_openw(name, output_target); | |
2fa0b342 | 676 | output_filename = name; |
097879bc | 677 | |
2fa0b342 | 678 | if (output == (bfd *)NULL) |
1418c83b SC |
679 | { |
680 | if (bfd_error == invalid_target) { | |
097879bc | 681 | info("%P%F target %s not found\n", output_target); |
1418c83b SC |
682 | } |
683 | info("%P%F problem opening output file %s, %E", name); | |
2fa0b342 | 684 | } |
2fa0b342 DHW |
685 | |
686 | output->flags |= D_PAGED; | |
687 | bfd_set_format(output, bfd_object); | |
688 | return output; | |
689 | } | |
1418c83b SC |
690 | |
691 | ||
097879bc | 692 | |
1418c83b | 693 | |
2fa0b342 | 694 | static void |
1418c83b SC |
695 | DEFUN(ldlang_open_output,(statement), |
696 | lang_statement_union_type *statement) | |
2fa0b342 | 697 | { |
1418c83b SC |
698 | switch (statement->header.type) |
699 | { | |
700 | case lang_output_statement_enum: | |
097879bc | 701 | output_bfd = open_output(statement->output_statement.name); |
2fa0b342 | 702 | ldemul_set_output_arch(); |
2fa0b342 | 703 | break; |
1418c83b | 704 | |
2fa0b342 | 705 | case lang_target_statement_enum: |
1418c83b | 706 | current_target = statement->target_statement.target; |
2fa0b342 | 707 | break; |
1418c83b | 708 | default: |
2fa0b342 | 709 | break; |
1418c83b SC |
710 | } |
711 | } | |
2fa0b342 | 712 | |
1418c83b SC |
713 | static void |
714 | DEFUN(open_input_bfds,(statement), | |
715 | lang_statement_union_type *statement) | |
716 | { | |
717 | switch (statement->header.type) | |
718 | { | |
719 | case lang_target_statement_enum: | |
720 | current_target = statement->target_statement.target; | |
2fa0b342 | 721 | break; |
1418c83b SC |
722 | case lang_wild_statement_enum: |
723 | /* Maybe we should load the file's symbols */ | |
724 | if (statement->wild_statement.filename) | |
725 | { | |
726 | (void) lookup_name(statement->wild_statement.filename); | |
727 | } | |
2fa0b342 | 728 | break; |
1418c83b SC |
729 | case lang_input_statement_enum: |
730 | if (statement->input_statement.real == true) | |
731 | { | |
732 | statement->input_statement.target = current_target; | |
733 | lookup_name(statement->input_statement.filename); | |
734 | } | |
2fa0b342 | 735 | break; |
1418c83b | 736 | default: |
2fa0b342 DHW |
737 | break; |
738 | } | |
2fa0b342 | 739 | } |
2fa0b342 DHW |
740 | /* If there are [COMMONS] statements, put a wild one into the bss section */ |
741 | ||
742 | static void | |
743 | lang_reasonable_defaults() | |
744 | { | |
1418c83b | 745 | #if 0 |
8cb5eb31 SC |
746 | lang_output_section_statement_lookup(".text"); |
747 | lang_output_section_statement_lookup(".data"); | |
748 | ||
2fa0b342 DHW |
749 | default_common_section = |
750 | lang_output_section_statement_lookup(".bss"); | |
8cb5eb31 | 751 | |
1418c83b | 752 | |
2fa0b342 DHW |
753 | if (placed_commons == false) { |
754 | lang_wild_statement_type *new = | |
755 | new_stat(lang_wild_statement, | |
756 | &default_common_section->children); | |
757 | new->section_name = "COMMON"; | |
758 | new->filename = (char *)NULL; | |
759 | lang_list_init(&new->children); | |
760 | } | |
1418c83b | 761 | #endif |
8cb5eb31 | 762 | |
2fa0b342 DHW |
763 | } |
764 | ||
1418c83b SC |
765 | /* |
766 | Add the supplied name to the symbol table as an undefined reference. | |
767 | Remove items from the chain as we open input bfds | |
768 | */ | |
769 | typedef struct ldlang_undef_chain_list_struct { | |
770 | struct ldlang_undef_chain_list_struct *next; | |
771 | char *name; | |
772 | } ldlang_undef_chain_list_type; | |
773 | ||
774 | static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head; | |
775 | ||
776 | void | |
777 | DEFUN(ldlang_add_undef,(name), | |
778 | CONST char *CONST name) | |
2fa0b342 | 779 | { |
1418c83b SC |
780 | ldlang_undef_chain_list_type *new = |
781 | (ldlang_undef_chain_list_type | |
3f8d46e7 | 782 | *)ldmalloc((bfd_size_type)(sizeof(ldlang_undef_chain_list_type))); |
1418c83b SC |
783 | |
784 | new->next = ldlang_undef_chain_list_head; | |
785 | ldlang_undef_chain_list_head = new; | |
786 | ||
787 | new->name = buystring(name); | |
788 | } | |
789 | /* Run through the list of undefineds created above and place them | |
790 | into the linker hash table as undefined symbols belonging to the | |
791 | script file. | |
792 | */ | |
793 | static void | |
794 | DEFUN_VOID(lang_place_undefineds) | |
795 | { | |
796 | ldlang_undef_chain_list_type *ptr = ldlang_undef_chain_list_head; | |
797 | while (ptr != (ldlang_undef_chain_list_type*)NULL) { | |
798 | ldsym_type *sy = ldsym_get(ptr->name); | |
799 | asymbol *def; | |
3f8d46e7 | 800 | asymbol **def_ptr = (asymbol **)ldmalloc((bfd_size_type)(sizeof(asymbol **))); |
1418c83b SC |
801 | def = (asymbol *)bfd_make_empty_symbol(script_file->the_bfd); |
802 | *def_ptr= def; | |
803 | def->name = ptr->name; | |
804 | def->flags = BSF_UNDEFINED; | |
805 | def->section = (asection *)NULL; | |
806 | Q_enter_global_ref(def_ptr); | |
807 | ptr = ptr->next; | |
2fa0b342 | 808 | } |
1418c83b | 809 | } |
2fa0b342 | 810 | |
1418c83b SC |
811 | |
812 | ||
813 | /* Copy important data from out internal form to the bfd way. Also | |
814 | create a section for the dummy file | |
815 | */ | |
816 | ||
817 | static void | |
818 | DEFUN_VOID(lang_create_output_section_statements) | |
819 | { | |
820 | lang_statement_union_type*os; | |
821 | for (os = lang_output_section_statement.head; | |
822 | os != (lang_statement_union_type*)NULL; | |
823 | os = os->output_section_statement.next) { | |
824 | lang_output_section_statement_type *s = | |
825 | &os->output_section_statement; | |
826 | init_os(s); | |
827 | } | |
828 | ||
829 | } | |
830 | ||
831 | static void | |
832 | DEFUN_VOID(lang_init_script_file) | |
833 | { | |
834 | script_file = lang_add_input_file("script file", | |
835 | lang_input_file_is_fake_enum, | |
836 | (char *)NULL); | |
837 | script_file->the_bfd = bfd_create("script file", output_bfd); | |
838 | script_file->symbol_count = 0; | |
839 | script_file->the_bfd->sections = output_bfd->sections; | |
2fa0b342 DHW |
840 | } |
841 | ||
842 | ||
1418c83b SC |
843 | |
844 | ||
2fa0b342 DHW |
845 | /* Open input files and attatch to output sections */ |
846 | static void | |
1418c83b SC |
847 | DEFUN(map_input_to_output_sections,(s, target, output_section_statement), |
848 | lang_statement_union_type *s AND | |
849 | CONST char *target AND | |
850 | lang_output_section_statement_type *output_section_statement) | |
2fa0b342 DHW |
851 | { |
852 | for (; s != (lang_statement_union_type *)NULL ; s = s->next) | |
853 | { | |
854 | switch (s->header.type) { | |
81016051 SC |
855 | |
856 | ||
2fa0b342 DHW |
857 | case lang_wild_statement_enum: |
858 | wild(&s->wild_statement, s->wild_statement.section_name, | |
859 | s->wild_statement.filename, target, | |
860 | output_section_statement); | |
861 | ||
862 | break; | |
81016051 SC |
863 | case lang_constructors_statement_enum: |
864 | map_input_to_output_sections(constructor_list.head, | |
865 | target, | |
866 | output_section_statement); | |
867 | break; | |
2fa0b342 | 868 | case lang_output_section_statement_enum: |
1418c83b | 869 | map_input_to_output_sections(s->output_section_statement.children.head, |
2fa0b342 DHW |
870 | target, |
871 | &s->output_section_statement); | |
872 | break; | |
873 | case lang_output_statement_enum: | |
874 | break; | |
875 | case lang_target_statement_enum: | |
876 | target = s->target_statement.target; | |
877 | break; | |
2fa0b342 DHW |
878 | case lang_fill_statement_enum: |
879 | case lang_input_section_enum: | |
880 | case lang_object_symbols_statement_enum: | |
881 | case lang_data_statement_enum: | |
1418c83b SC |
882 | case lang_assignment_statement_enum: |
883 | case lang_padding_statement_enum: | |
2fa0b342 DHW |
884 | break; |
885 | case lang_afile_asection_pair_statement_enum: | |
886 | FAIL(); | |
887 | break; | |
2fa0b342 DHW |
888 | case lang_address_statement_enum: |
889 | /* Mark the specified section with the supplied address */ | |
890 | { | |
891 | lang_output_section_statement_type *os = | |
892 | lang_output_section_statement_lookup | |
893 | (s->address_statement.section_name); | |
894 | os->addr_tree = s->address_statement.address; | |
48491e2e SC |
895 | if (os->bfd_section == (asection *)NULL) { |
896 | info("%P%F can't set the address of undefined section %s\n", | |
897 | s->address_statement.section_name); | |
898 | } | |
2fa0b342 DHW |
899 | } |
900 | break; | |
901 | case lang_input_statement_enum: | |
902 | /* A standard input statement, has no wildcards */ | |
1418c83b | 903 | /* ldmain_open_file_read_symbol(&s->input_statement);*/ |
2fa0b342 DHW |
904 | break; |
905 | } | |
906 | } | |
907 | } | |
908 | ||
909 | ||
910 | ||
911 | ||
912 | ||
913 | static void | |
1418c83b SC |
914 | DEFUN(print_output_section_statement,(output_section_statement), |
915 | lang_output_section_statement_type *output_section_statement) | |
2fa0b342 DHW |
916 | { |
917 | asection *section = output_section_statement->bfd_section; | |
918 | print_nl(); | |
919 | print_section(output_section_statement->name); | |
920 | ||
921 | if (section) { | |
922 | print_dot = section->vma; | |
923 | print_space(); | |
924 | print_section(""); | |
925 | print_space(); | |
926 | print_address(section->vma); | |
927 | print_space(); | |
928 | print_size(section->size); | |
929 | print_space(); | |
930 | print_alignment(section->alignment_power); | |
931 | print_space(); | |
932 | #if 0 | |
933 | printf("%s flags", output_section_statement->region->name); | |
934 | print_flags(stdout, &output_section_statement->flags); | |
935 | #endif | |
7bc4a0d7 SC |
936 | if (section->flags & SEC_LOAD) |
937 | printf("load "); | |
938 | if (section->flags & SEC_ALLOC) | |
939 | printf("alloc "); | |
940 | if (section->flags & SEC_RELOC) | |
941 | printf("reloc "); | |
942 | if (section->flags & SEC_HAS_CONTENTS) | |
943 | printf("contents "); | |
2fa0b342 DHW |
944 | |
945 | } | |
946 | else { | |
947 | printf("No attached output section"); | |
948 | } | |
949 | print_nl(); | |
950 | print_statement(output_section_statement->children.head, | |
951 | output_section_statement); | |
952 | ||
953 | } | |
954 | ||
955 | static void | |
1418c83b SC |
956 | DEFUN(print_assignment,(assignment, output_section), |
957 | lang_assignment_statement_type *assignment AND | |
958 | lang_output_section_statement_type *output_section) | |
2fa0b342 DHW |
959 | { |
960 | etree_value_type result; | |
961 | print_section(""); | |
962 | print_space(); | |
963 | print_section(""); | |
964 | print_space(); | |
965 | print_address(print_dot); | |
966 | print_space(); | |
967 | result = exp_fold_tree(assignment->exp->assign.src, | |
968 | output_section, | |
969 | lang_final_phase_enum, | |
970 | print_dot, | |
971 | &print_dot); | |
972 | ||
973 | if (result.valid) { | |
974 | print_address(result.value); | |
975 | } | |
976 | else | |
1418c83b SC |
977 | { |
978 | printf("*undefined*"); | |
979 | } | |
2fa0b342 DHW |
980 | print_space(); |
981 | exp_print_tree(stdout, assignment->exp); | |
982 | printf("\n"); | |
983 | } | |
984 | ||
985 | static void | |
1418c83b SC |
986 | DEFUN(print_input_statement,(statm), |
987 | lang_input_statement_type *statm) | |
2fa0b342 | 988 | { |
070aa819 SC |
989 | if (statm->filename != (char *)NULL) { |
990 | printf("LOAD %s\n",statm->filename); | |
991 | } | |
2fa0b342 DHW |
992 | } |
993 | ||
1418c83b SC |
994 | static void |
995 | DEFUN(print_symbol,(q), | |
996 | asymbol *q) | |
2fa0b342 DHW |
997 | { |
998 | print_section(""); | |
999 | printf(" "); | |
1000 | print_section(""); | |
1001 | printf(" "); | |
1002 | print_address(outside_symbol_address(q)); | |
1003 | printf(" %s", q->name ? q->name : " "); | |
1004 | print_nl(); | |
1005 | } | |
1418c83b | 1006 | |
2fa0b342 | 1007 | static void |
1418c83b SC |
1008 | DEFUN(print_input_section,(in), |
1009 | lang_input_section_type *in) | |
2fa0b342 DHW |
1010 | { |
1011 | asection *i = in->section; | |
1012 | ||
1013 | if(i->size != 0) { | |
1014 | print_section(""); | |
1015 | printf(" "); | |
1016 | print_section(i->name); | |
1017 | printf(" "); | |
1018 | if (i->output_section) { | |
1019 | print_address(i->output_section->vma + i->output_offset); | |
1020 | printf(" "); | |
1021 | print_size(i->size); | |
1022 | printf(" "); | |
1023 | print_alignment(i->alignment_power); | |
1024 | printf(" "); | |
1025 | if (in->ifile) { | |
1418c83b | 1026 | |
2fa0b342 | 1027 | bfd *abfd = in->ifile->the_bfd; |
1418c83b SC |
1028 | if (in->ifile->just_syms_flag == true) { |
1029 | printf("symbols only "); | |
1030 | } | |
1031 | ||
2fa0b342 DHW |
1032 | printf(" %s ",abfd->xvec->name); |
1033 | if(abfd->my_archive != (bfd *)NULL) { | |
1034 | printf("[%s]%s", abfd->my_archive->filename, | |
1035 | abfd->filename); | |
1036 | } | |
1037 | else { | |
1038 | printf("%s", abfd->filename); | |
1039 | } | |
48491e2e | 1040 | printf("(overhead %d bytes)", (int)bfd_alloc_size(abfd)); |
2fa0b342 DHW |
1041 | print_nl(); |
1042 | ||
1043 | /* Find all the symbols in this file defined in this section */ | |
1418c83b SC |
1044 | { |
1045 | asymbol **p; | |
1046 | for (p = in->ifile->asymbols; *p; p++) { | |
1047 | asymbol *q = *p; | |
2fa0b342 | 1048 | |
1418c83b SC |
1049 | if (bfd_get_section(q) == i && q->flags & BSF_GLOBAL) { |
1050 | print_symbol(q); | |
1051 | } | |
2fa0b342 DHW |
1052 | } |
1053 | } | |
2fa0b342 DHW |
1054 | } |
1055 | else { | |
1056 | print_nl(); | |
1057 | } | |
1058 | ||
1059 | ||
1060 | print_dot = outside_section_address(i) + i->size; | |
1061 | } | |
1062 | else { | |
1063 | printf("No output section allocated\n"); | |
1064 | } | |
1065 | } | |
1066 | } | |
2fa0b342 | 1067 | |
2fa0b342 | 1068 | static void |
1418c83b SC |
1069 | DEFUN(print_fill_statement,(fill), |
1070 | lang_fill_statement_type *fill) | |
2fa0b342 DHW |
1071 | { |
1072 | printf("FILL mask "); | |
1073 | print_fill( fill->fill); | |
1074 | } | |
1075 | ||
1076 | static void | |
1418c83b SC |
1077 | DEFUN(print_data_statement,(data), |
1078 | lang_data_statement_type *data) | |
2fa0b342 DHW |
1079 | { |
1080 | /* bfd_vma value; */ | |
1081 | print_section(""); | |
1082 | print_space(); | |
1083 | print_section(""); | |
1084 | print_space(); | |
65c552e3 | 1085 | /* ASSERT(print_dot == data->output_vma);*/ |
2fa0b342 DHW |
1086 | |
1087 | print_address(data->output_vma); | |
1088 | print_space(); | |
1089 | print_address(data->value); | |
1090 | print_space(); | |
1091 | switch (data->type) { | |
1092 | case BYTE : | |
1093 | printf("BYTE "); | |
1094 | print_dot += BYTE_SIZE; | |
1095 | break; | |
1096 | case SHORT: | |
1097 | printf("SHORT "); | |
1098 | print_dot += SHORT_SIZE; | |
1099 | break; | |
1100 | case LONG: | |
1101 | printf("LONG "); | |
1102 | print_dot += LONG_SIZE; | |
1103 | break; | |
1104 | } | |
1105 | ||
1106 | exp_print_tree(stdout, data->exp); | |
1107 | ||
1108 | printf("\n"); | |
1109 | } | |
1110 | ||
1111 | ||
1112 | static void | |
1418c83b SC |
1113 | DEFUN(print_padding_statement,(s), |
1114 | lang_padding_statement_type *s) | |
2fa0b342 DHW |
1115 | { |
1116 | print_section(""); | |
1117 | print_space(); | |
1118 | print_section("*fill*"); | |
1119 | print_space(); | |
1120 | print_address(s->output_offset + s->output_section->vma); | |
1121 | print_space(); | |
1122 | print_size(s->size); | |
1123 | print_space(); | |
1124 | print_fill(s->fill); | |
1125 | print_nl(); | |
1126 | } | |
1127 | ||
1418c83b SC |
1128 | static void |
1129 | DEFUN(print_wild_statement,(w,os), | |
1130 | lang_wild_statement_type *w AND | |
1131 | lang_output_section_statement_type *os) | |
2fa0b342 | 1132 | { |
48491e2e | 1133 | printf(" from "); |
2fa0b342 DHW |
1134 | if (w->filename != (char *)NULL) { |
1135 | printf("%s",w->filename); | |
1136 | } | |
1137 | else { | |
1138 | printf("*"); | |
1139 | } | |
1140 | if (w->section_name != (char *)NULL) { | |
1141 | printf("(%s)",w->section_name); | |
1142 | } | |
1143 | else { | |
1144 | printf("(*)"); | |
1145 | } | |
1146 | print_nl(); | |
1147 | print_statement(w->children.head, os); | |
1148 | ||
1149 | } | |
1150 | static void | |
1418c83b SC |
1151 | DEFUN(print_statement,(s, os), |
1152 | lang_statement_union_type *s AND | |
1153 | lang_output_section_statement_type *os) | |
2fa0b342 DHW |
1154 | { |
1155 | while (s) { | |
1156 | switch (s->header.type) { | |
81016051 SC |
1157 | case lang_constructors_statement_enum: |
1158 | printf("constructors:\n"); | |
1159 | print_statement(constructor_list.head, os); | |
1160 | break; | |
1161 | ||
2fa0b342 | 1162 | case lang_wild_statement_enum: |
1418c83b SC |
1163 | print_wild_statement(&s->wild_statement, os); |
1164 | break; | |
2fa0b342 | 1165 | default: |
1418c83b | 1166 | printf("Fail with %d\n",s->header.type); |
2fa0b342 DHW |
1167 | FAIL(); |
1168 | break; | |
1418c83b SC |
1169 | case lang_address_statement_enum: |
1170 | printf("address\n"); | |
1171 | break; | |
2fa0b342 DHW |
1172 | break; |
1173 | case lang_object_symbols_statement_enum: | |
1174 | printf("object symbols\n"); | |
1175 | break; | |
1176 | case lang_fill_statement_enum: | |
1177 | print_fill_statement(&s->fill_statement); | |
1178 | break; | |
1179 | case lang_data_statement_enum: | |
1180 | print_data_statement(&s->data_statement); | |
1181 | break; | |
2fa0b342 DHW |
1182 | case lang_input_section_enum: |
1183 | print_input_section(&s->input_section); | |
1184 | break; | |
1185 | case lang_padding_statement_enum: | |
1186 | print_padding_statement(&s->padding_statement); | |
1187 | break; | |
1188 | case lang_output_section_statement_enum: | |
1189 | print_output_section_statement(&s->output_section_statement); | |
1190 | break; | |
1191 | case lang_assignment_statement_enum: | |
1192 | print_assignment(&s->assignment_statement, | |
1418c83b | 1193 | os); |
2fa0b342 DHW |
1194 | break; |
1195 | ||
1196 | ||
1197 | case lang_target_statement_enum: | |
1198 | printf("TARGET(%s)\n", s->target_statement.target); | |
1199 | break; | |
1200 | case lang_output_statement_enum: | |
097879bc SC |
1201 | printf("OUTPUT(%s %s)\n", |
1202 | s->output_statement.name, | |
1203 | output_target); | |
2fa0b342 DHW |
1204 | break; |
1205 | case lang_input_statement_enum: | |
1206 | print_input_statement(&s->input_statement); | |
1207 | break; | |
1208 | case lang_afile_asection_pair_statement_enum: | |
1209 | FAIL(); | |
1210 | break; | |
1211 | } | |
1212 | s = s->next; | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | ||
1217 | static void | |
1418c83b | 1218 | DEFUN_VOID(print_statements) |
2fa0b342 DHW |
1219 | { |
1220 | print_statement(statement_list.head, | |
1221 | (lang_output_section_statement_type *)NULL); | |
1222 | } | |
1223 | ||
1224 | static bfd_vma | |
1418c83b SC |
1225 | DEFUN(insert_pad,(this_ptr, fill, power, output_section_statement, dot), |
1226 | lang_statement_union_type **this_ptr AND | |
1227 | fill_type fill AND | |
1228 | unsigned int power AND | |
1229 | asection * output_section_statement AND | |
1230 | bfd_vma dot) | |
2fa0b342 DHW |
1231 | { |
1232 | /* Align this section first to the | |
1233 | input sections requirement, then | |
1234 | to the output section's requirement. | |
1235 | If this alignment is > than any seen before, | |
1236 | then record it too. Perform the alignment by | |
1237 | inserting a magic 'padding' statement. | |
1238 | */ | |
1239 | ||
1240 | unsigned int alignment_needed = align_power(dot, power) - dot; | |
1241 | ||
1242 | if (alignment_needed != 0) | |
1243 | { | |
1244 | lang_statement_union_type *new = | |
1245 | (lang_statement_union_type *) | |
3f8d46e7 | 1246 | ldmalloc((bfd_size_type)(sizeof(lang_padding_statement_type))); |
2fa0b342 DHW |
1247 | /* Link into existing chain */ |
1248 | new->header.next = *this_ptr; | |
1249 | *this_ptr = new; | |
1250 | new->header.type = lang_padding_statement_enum; | |
1251 | new->padding_statement.output_section = output_section_statement; | |
1252 | new->padding_statement.output_offset = | |
1253 | dot - output_section_statement->vma; | |
1254 | new->padding_statement.fill = fill; | |
1255 | new->padding_statement.size = alignment_needed; | |
1256 | } | |
1257 | ||
1258 | ||
1259 | /* Remember the most restrictive alignment */ | |
1260 | if (power > output_section_statement->alignment_power) { | |
1261 | output_section_statement->alignment_power = power; | |
1262 | } | |
1263 | output_section_statement->size += alignment_needed; | |
1264 | return alignment_needed + dot; | |
1265 | ||
1266 | } | |
1267 | ||
1418c83b | 1268 | /* Work out how much this section will move the dot point */ |
2fa0b342 | 1269 | static bfd_vma |
1418c83b SC |
1270 | DEFUN(size_input_section, (this_ptr, output_section_statement, fill, dot), |
1271 | lang_statement_union_type **this_ptr AND | |
1272 | lang_output_section_statement_type*output_section_statement AND | |
1273 | unsigned short fill AND | |
1274 | bfd_vma dot) | |
2fa0b342 DHW |
1275 | { |
1276 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
1277 | asection *i = is->section; | |
1418c83b SC |
1278 | |
1279 | if (is->ifile->just_syms_flag == false) { | |
ac004870 SC |
1280 | dot = insert_pad(this_ptr, fill, i->alignment_power, |
1281 | output_section_statement->bfd_section, dot); | |
2fa0b342 | 1282 | |
7bc4a0d7 SC |
1283 | /* remember the largest size so we can malloc the largest area |
1284 | needed for the output stage. Only remember the size of sections | |
1285 | which we will actually allocate */ | |
1286 | if (((i->flags & | |
1287 | (SEC_HAS_CONTENTS | SEC_LOAD)) == (SEC_HAS_CONTENTS | SEC_LOAD)) | |
1288 | && (i->size > largest_section)) { | |
ac004870 SC |
1289 | largest_section = i->size; |
1290 | } | |
2fa0b342 | 1291 | |
ac004870 | 1292 | /* Remember where in the output section this input section goes */ |
2fa0b342 | 1293 | |
ac004870 SC |
1294 | i->output_offset = dot - output_section_statement->bfd_section->vma; |
1295 | ||
1296 | /* Mark how big the output section must be to contain this now */ | |
1297 | dot += i->size; | |
1298 | output_section_statement->bfd_section->size = | |
1299 | dot - output_section_statement->bfd_section->vma; | |
1300 | } | |
1301 | else | |
1302 | { | |
1303 | i->output_offset = i->vma - output_section_statement->bfd_section->vma; | |
1304 | } | |
2fa0b342 DHW |
1305 | |
1306 | return dot ; | |
1307 | } | |
1308 | ||
1309 | ||
1310 | /* Work out the size of the output sections | |
1311 | from the sizes of the input sections */ | |
1312 | static bfd_vma | |
1418c83b SC |
1313 | DEFUN(lang_size_sections,(s, output_section_statement, prev, fill, dot), |
1314 | lang_statement_union_type *s AND | |
1315 | lang_output_section_statement_type * output_section_statement AND | |
1316 | lang_statement_union_type **prev AND | |
1317 | unsigned short fill AND | |
1318 | bfd_vma dot) | |
2fa0b342 DHW |
1319 | { |
1320 | /* Size up the sections from their constituent parts */ | |
1321 | for (; s != (lang_statement_union_type *)NULL ; s = s->next) | |
1418c83b SC |
1322 | { |
1323 | switch (s->header.type) { | |
81016051 SC |
1324 | |
1325 | ||
1418c83b SC |
1326 | case lang_output_section_statement_enum: |
1327 | { | |
1328 | bfd_vma after; | |
1329 | lang_output_section_statement_type *os = | |
1330 | &(s->output_section_statement); | |
1331 | /* The start of a section */ | |
2fa0b342 | 1332 | |
1418c83b SC |
1333 | if (os->addr_tree == (etree_type *)NULL) { |
1334 | /* No address specified for this section, get one | |
1335 | from the region specification | |
1336 | */ | |
1337 | if (os->region == (lang_memory_region_type *)NULL) { | |
2fa0b342 | 1338 | os->region = lang_memory_region_lookup("*default*"); |
1418c83b SC |
1339 | } |
1340 | dot = os->region->current; | |
2fa0b342 | 1341 | } |
1418c83b SC |
1342 | else { |
1343 | etree_value_type r ; | |
1344 | r = exp_fold_tree(os->addr_tree, | |
1345 | (lang_output_section_statement_type *)NULL, | |
1346 | lang_allocating_phase_enum, | |
1347 | dot, &dot); | |
1348 | if (r.valid == false) { | |
1349 | info("%F%S: non constant address expression for section %s\n", | |
1350 | os->name); | |
1351 | } | |
1352 | dot = r.value; | |
1353 | } | |
1354 | /* The section starts here */ | |
1355 | /* First, align to what the section needs */ | |
2fa0b342 | 1356 | |
1418c83b SC |
1357 | dot = align_power(dot, os->bfd_section->alignment_power); |
1358 | os->bfd_section->vma = dot; | |
1359 | os->bfd_section->output_offset = 0; | |
2fa0b342 | 1360 | |
1418c83b SC |
1361 | (void) lang_size_sections(os->children.head, os, &os->children.head, |
1362 | os->fill, dot); | |
1363 | /* Ignore the size of the input sections, use the vma and size to */ | |
1364 | /* align against */ | |
2fa0b342 DHW |
1365 | |
1366 | ||
1418c83b SC |
1367 | after = ALIGN(os->bfd_section->vma + |
1368 | os->bfd_section->size, | |
1369 | os->block_value) ; | |
2fa0b342 DHW |
1370 | |
1371 | ||
1418c83b SC |
1372 | os->bfd_section->size = after - os->bfd_section->vma; |
1373 | dot = os->bfd_section->vma + os->bfd_section->size; | |
1374 | os->processed = true; | |
2fa0b342 | 1375 | |
1418c83b SC |
1376 | /* Replace into region ? */ |
1377 | if (os->addr_tree == (etree_type *)NULL | |
1378 | && os->region !=(lang_memory_region_type*)NULL ) { | |
1379 | os->region->current = dot; | |
1380 | } | |
1381 | } | |
2fa0b342 | 1382 | |
1418c83b | 1383 | break; |
81016051 SC |
1384 | case lang_constructors_statement_enum: |
1385 | dot = lang_size_sections(constructor_list.head, | |
1386 | output_section_statement, | |
1387 | &s->wild_statement.children.head, | |
1388 | fill, | |
1389 | dot); | |
1390 | break; | |
1391 | ||
1418c83b SC |
1392 | case lang_data_statement_enum: |
1393 | { | |
1394 | unsigned int size; | |
65c552e3 | 1395 | s->data_statement.output_vma = dot - output_section_statement->bfd_section->vma; |
1418c83b SC |
1396 | s->data_statement.output_section = |
1397 | output_section_statement->bfd_section; | |
2fa0b342 | 1398 | |
1418c83b SC |
1399 | switch (s->data_statement.type) { |
1400 | case LONG: | |
1401 | size = LONG_SIZE; | |
1402 | break; | |
1403 | case SHORT: | |
1404 | size = SHORT_SIZE; | |
1405 | break; | |
1406 | case BYTE: | |
1407 | size = BYTE_SIZE; | |
1408 | break; | |
2fa0b342 | 1409 | |
1418c83b SC |
1410 | } |
1411 | dot += size; | |
1412 | output_section_statement->bfd_section->size += size; | |
1413 | } | |
1414 | break; | |
2fa0b342 | 1415 | |
1418c83b | 1416 | case lang_wild_statement_enum: |
2fa0b342 | 1417 | |
1418c83b | 1418 | dot = lang_size_sections(s->wild_statement.children.head, |
2fa0b342 DHW |
1419 | output_section_statement, |
1420 | &s->wild_statement.children.head, | |
1421 | ||
1422 | fill, dot); | |
1423 | ||
1418c83b | 1424 | break; |
2fa0b342 | 1425 | |
1418c83b SC |
1426 | case lang_object_symbols_statement_enum: |
1427 | create_object_symbols = output_section_statement; | |
1428 | break; | |
1429 | case lang_output_statement_enum: | |
1430 | case lang_target_statement_enum: | |
1431 | break; | |
1432 | case lang_input_section_enum: | |
1433 | dot = size_input_section(prev, | |
2fa0b342 DHW |
1434 | output_section_statement, |
1435 | output_section_statement->fill, dot); | |
1418c83b SC |
1436 | break; |
1437 | case lang_input_statement_enum: | |
1438 | break; | |
1439 | case lang_fill_statement_enum: | |
1440 | fill = s->fill_statement.fill; | |
1441 | break; | |
1442 | case lang_assignment_statement_enum: | |
2fa0b342 | 1443 | { |
1418c83b SC |
1444 | bfd_vma newdot = dot; |
1445 | exp_fold_tree(s->assignment_statement.exp, | |
1446 | output_section_statement, | |
1447 | lang_allocating_phase_enum, | |
1448 | dot, | |
1449 | &newdot); | |
1450 | ||
1451 | if (newdot != dot) | |
1452 | /* We've been moved ! so insert a pad */ | |
1453 | { | |
1454 | lang_statement_union_type *new = | |
1455 | (lang_statement_union_type *) | |
3f8d46e7 | 1456 | ldmalloc((bfd_size_type)(sizeof(lang_padding_statement_type))); |
1418c83b SC |
1457 | /* Link into existing chain */ |
1458 | new->header.next = *prev; | |
1459 | *prev = new; | |
1460 | new->header.type = lang_padding_statement_enum; | |
1461 | new->padding_statement.output_section = | |
1462 | output_section_statement->bfd_section; | |
1463 | new->padding_statement.output_offset = | |
1464 | dot - output_section_statement->bfd_section->vma; | |
1465 | new->padding_statement.fill = fill; | |
1466 | new->padding_statement.size = newdot - dot; | |
1467 | output_section_statement->bfd_section->size += | |
1468 | new->padding_statement.size; | |
1469 | dot = newdot; | |
1470 | } | |
2fa0b342 | 1471 | } |
2fa0b342 | 1472 | |
1418c83b SC |
1473 | break; |
1474 | case lang_padding_statement_enum: | |
1475 | FAIL(); | |
1476 | break; | |
1477 | default: | |
1478 | FAIL(); | |
1479 | break; | |
1480 | case lang_address_statement_enum: | |
1481 | break; | |
1482 | } | |
1483 | prev = &s->header.next; | |
2fa0b342 | 1484 | } |
2fa0b342 DHW |
1485 | return dot; |
1486 | } | |
1487 | ||
1488 | ||
1489 | static bfd_vma | |
1418c83b SC |
1490 | DEFUN(lang_do_assignments,(s, output_section_statement, fill, dot), |
1491 | lang_statement_union_type *s AND | |
1492 | lang_output_section_statement_type * output_section_statement AND | |
1493 | unsigned short fill AND | |
1494 | bfd_vma dot) | |
2fa0b342 DHW |
1495 | { |
1496 | ||
1497 | for (; s != (lang_statement_union_type *)NULL ; s = s->next) | |
1498 | { | |
1499 | switch (s->header.type) { | |
81016051 SC |
1500 | case lang_constructors_statement_enum: |
1501 | dot = lang_do_assignments(constructor_list.head, | |
1502 | output_section_statement, | |
1503 | fill, | |
1504 | dot); | |
1505 | break; | |
1506 | ||
2fa0b342 DHW |
1507 | case lang_output_section_statement_enum: |
1508 | { | |
1509 | lang_output_section_statement_type *os = | |
1510 | &(s->output_section_statement); | |
1511 | dot = os->bfd_section->vma; | |
1512 | (void) lang_do_assignments(os->children.head, os, os->fill, dot); | |
1513 | dot = os->bfd_section->vma + os->bfd_section->size; | |
1514 | } | |
1515 | break; | |
1516 | case lang_wild_statement_enum: | |
1517 | ||
1518 | dot = lang_do_assignments(s->wild_statement.children.head, | |
1519 | output_section_statement, | |
1520 | fill, dot); | |
1521 | ||
1522 | break; | |
1523 | ||
1524 | case lang_object_symbols_statement_enum: | |
1525 | case lang_output_statement_enum: | |
1526 | case lang_target_statement_enum: | |
1418c83b | 1527 | #if 0 |
2fa0b342 | 1528 | case lang_common_statement_enum: |
1418c83b | 1529 | #endif |
2fa0b342 DHW |
1530 | break; |
1531 | case lang_data_statement_enum: | |
1532 | { | |
1533 | etree_value_type value ; | |
1534 | value = exp_fold_tree(s->data_statement.exp, | |
1535 | 0, lang_final_phase_enum, dot, &dot); | |
1536 | s->data_statement.value = value.value; | |
1537 | if (value.valid == false) info("%F%P: Invalid data statement\n"); | |
1538 | } | |
1539 | switch (s->data_statement.type) { | |
1540 | case LONG: | |
1541 | dot += LONG_SIZE; | |
1542 | break; | |
1543 | case SHORT: | |
1544 | dot += SHORT_SIZE; | |
1545 | break; | |
1546 | case BYTE: | |
1547 | dot += BYTE_SIZE; | |
1548 | break; | |
1549 | } | |
1550 | break; | |
1551 | case lang_input_section_enum: | |
1552 | { | |
1553 | asection *in = s->input_section.section; | |
1554 | dot += in->size; | |
1555 | } | |
1556 | break; | |
1557 | ||
1558 | case lang_input_statement_enum: | |
1559 | break; | |
1560 | case lang_fill_statement_enum: | |
1561 | fill = s->fill_statement.fill; | |
1562 | break; | |
1563 | case lang_assignment_statement_enum: | |
1564 | { | |
1565 | exp_fold_tree(s->assignment_statement.exp, | |
1566 | output_section_statement, | |
1567 | lang_final_phase_enum, | |
1568 | dot, | |
1569 | &dot); | |
1570 | } | |
1571 | ||
1572 | break; | |
1573 | case lang_padding_statement_enum: | |
1574 | dot += s->padding_statement.size; | |
1575 | break; | |
1576 | default: | |
1577 | FAIL(); | |
1578 | break; | |
1579 | case lang_address_statement_enum: | |
1580 | break; | |
1581 | } | |
1582 | ||
1583 | } | |
1584 | return dot; | |
1585 | } | |
1586 | ||
1587 | ||
1588 | ||
1418c83b SC |
1589 | static void |
1590 | DEFUN_VOID(lang_relocate_globals) | |
2fa0b342 DHW |
1591 | { |
1592 | ||
1593 | /* | |
1418c83b SC |
1594 | Each ldsym_type maintains a chain of pointers to asymbols which |
1595 | references the definition. Replace each pointer to the referenence | |
1596 | with a pointer to only one place, preferably the definition. If | |
1597 | the defintion isn't available then the common symbol, and if | |
1598 | there isn't one of them then choose one reference. | |
1599 | */ | |
2fa0b342 DHW |
1600 | |
1601 | FOR_EACH_LDSYM(lgs) { | |
1602 | asymbol *it; | |
1603 | if (lgs->sdefs_chain) { | |
1604 | it = *(lgs->sdefs_chain); | |
1605 | } | |
1606 | else if (lgs->scoms_chain != (asymbol **)NULL) { | |
1607 | it = *(lgs->scoms_chain); | |
1608 | } | |
1609 | else if (lgs->srefs_chain != (asymbol **)NULL) { | |
1610 | it = *(lgs->srefs_chain); | |
1611 | } | |
1612 | else { | |
1418c83b SC |
1613 | /* This can happen when the command line asked for a symbol to |
1614 | be -u */ | |
1615 | it = (asymbol *)NULL; | |
2fa0b342 DHW |
1616 | } |
1617 | if (it != (asymbol *)NULL) | |
1418c83b | 1618 | { |
81016051 SC |
1619 | asymbol **ptr = lgs->srefs_chain;; |
1620 | if (lgs->flags & SYM_WARNING) | |
1621 | { | |
1622 | produce_warnings(lgs, it); | |
1623 | } | |
1624 | if (lgs->flags & SYM_INDIRECT) | |
1625 | { | |
1626 | do_indirect(lgs); | |
1627 | } | |
2fa0b342 | 1628 | |
1418c83b SC |
1629 | while (ptr != (asymbol **)NULL) { |
1630 | asymbol *ref = *ptr; | |
1631 | *ptr = it; | |
1632 | ptr = (asymbol **)(ref->udata); | |
1633 | } | |
2fa0b342 | 1634 | } |
2fa0b342 DHW |
1635 | } |
1636 | } | |
1637 | ||
1638 | ||
1639 | ||
2fa0b342 | 1640 | static void |
1418c83b | 1641 | DEFUN_VOID(lang_finish) |
2fa0b342 DHW |
1642 | { |
1643 | ldsym_type *lgs; | |
1644 | ||
1645 | if (entry_symbol == (char *)NULL) { | |
1646 | /* No entry has been specified, look for start */ | |
1647 | entry_symbol = "start"; | |
1648 | } | |
1649 | lgs = ldsym_get_soft(entry_symbol); | |
1650 | if (lgs && lgs->sdefs_chain) { | |
1651 | asymbol *sy = *(lgs->sdefs_chain); | |
1652 | /* We can set the entry address*/ | |
1653 | bfd_set_start_address(output_bfd, | |
1654 | outside_symbol_address(sy)); | |
1655 | ||
1656 | } | |
1657 | else { | |
1658 | /* Can't find anything reasonable, | |
1659 | use the first address in the text section | |
1660 | */ | |
1661 | asection *ts = bfd_get_section_by_name(output_bfd, ".text"); | |
1662 | if (ts) { | |
1663 | bfd_set_start_address(output_bfd, ts->vma); | |
1664 | } | |
1665 | } | |
1666 | } | |
1667 | ||
1668 | /* By now we know the target architecture, and we may have an */ | |
1669 | /* ldfile_output_machine_name */ | |
1670 | static void | |
1418c83b | 1671 | DEFUN_VOID(lang_check) |
2fa0b342 DHW |
1672 | { |
1673 | lang_statement_union_type *file; | |
7bc4a0d7 | 1674 | |
3f8d46e7 JG |
1675 | bfd * input_bfd; |
1676 | unsigned long input_machine; | |
7bc4a0d7 | 1677 | enum bfd_architecture input_architecture; |
06850bea SC |
1678 | CONST char *out_arch; |
1679 | char *out_arch2; | |
2fa0b342 | 1680 | |
7bc4a0d7 | 1681 | |
2fa0b342 DHW |
1682 | for (file = file_chain.head; |
1683 | file != (lang_statement_union_type *)NULL; | |
1684 | file=file->input_statement.next) | |
1418c83b | 1685 | { |
06850bea SC |
1686 | unsigned long ldfile_new_output_machine = 0; |
1687 | enum bfd_architecture ldfile_new_output_architecture = bfd_arch_unknown; | |
7bc4a0d7 | 1688 | |
3f8d46e7 | 1689 | input_bfd = file->input_statement.the_bfd; |
7bc4a0d7 | 1690 | |
3f8d46e7 | 1691 | input_machine = bfd_get_machine(input_bfd); |
7bc4a0d7 SC |
1692 | input_architecture = bfd_get_architecture(input_bfd); |
1693 | ||
3f8d46e7 JG |
1694 | |
1695 | /* Inspect the architecture and ensure we're linking like with like */ | |
7bc4a0d7 SC |
1696 | if (!bfd_arch_compatible(input_bfd, |
1697 | output_bfd, | |
1698 | &ldfile_new_output_architecture, | |
1699 | &ldfile_new_output_machine)) | |
1700 | { | |
1701 | ||
1702 | /* Result of bfd_printable_arch_mach is not guaranteed to stick | |
1703 | around after next call, so we have to copy it. */ | |
1704 | out_arch = bfd_printable_arch_mach(ldfile_output_architecture, | |
1705 | ldfile_output_machine); | |
1706 | out_arch2 = ldmalloc (strlen (out_arch)+1); | |
1707 | strcpy (out_arch2, out_arch); | |
1708 | ||
1709 | info("%P: warning, %s architecture of input file `%B' incompatible with %s output\n", | |
1710 | bfd_printable_arch_mach(input_architecture, input_machine), | |
1711 | input_bfd, | |
1712 | out_arch2); | |
1713 | free (out_arch2); | |
1714 | ||
1715 | ||
1716 | bfd_set_arch_mach(output_bfd, | |
1717 | ldfile_new_output_architecture, | |
1718 | ldfile_new_output_machine); | |
1719 | } | |
2fa0b342 | 1720 | } |
7bc4a0d7 | 1721 | |
2fa0b342 DHW |
1722 | } |
1723 | ||
1724 | ||
1725 | /* | |
1726 | * run through all the global common symbols and tie them | |
b6316534 SC |
1727 | * to the output section requested. |
1728 | * | |
1729 | As an experiment we do this 4 times, once for all the byte sizes, | |
1730 | then all the two bytes, all the four bytes and then everything else | |
1731 | */ | |
2fa0b342 DHW |
1732 | |
1733 | static void | |
1418c83b | 1734 | DEFUN_VOID(lang_common) |
2fa0b342 DHW |
1735 | { |
1736 | ldsym_type *lgs; | |
b6316534 | 1737 | size_t power; |
2fa0b342 DHW |
1738 | if (config.relocateable_output == false || |
1739 | command_line.force_common_definition== true) { | |
b6316534 SC |
1740 | for (power = 1; (config.sort_common == true && power == 1) || (power <= 16); power <<=1) { |
1741 | for (lgs = symbol_head; | |
1742 | lgs != (ldsym_type *)NULL; | |
1743 | lgs=lgs->next) | |
1418c83b SC |
1744 | { |
1745 | asymbol *com ; | |
1746 | unsigned int power_of_two; | |
1747 | size_t size; | |
1748 | size_t align; | |
1749 | if (lgs->scoms_chain != (asymbol **)NULL) { | |
1750 | com = *(lgs->scoms_chain); | |
1751 | size = com->value; | |
1752 | switch (size) { | |
1753 | case 0: | |
1754 | case 1: | |
1755 | align = 1; | |
1756 | power_of_two = 0; | |
1757 | break; | |
1758 | case 2: | |
1759 | power_of_two = 1; | |
1760 | align = 2; | |
1761 | break; | |
1762 | case 3: | |
1763 | case 4: | |
1764 | power_of_two =2; | |
1765 | align = 4; | |
1766 | break; | |
1767 | case 5: | |
1768 | case 6: | |
1769 | case 7: | |
1770 | case 8: | |
1771 | power_of_two = 3; | |
2fa0b342 | 1772 | align = 8; |
1418c83b SC |
1773 | break; |
1774 | default: | |
1775 | power_of_two = 4; | |
1776 | align = 16; | |
1777 | break; | |
2fa0b342 | 1778 | } |
b6316534 SC |
1779 | if (config.sort_common == false || align == power) { |
1780 | /* Change from a common symbol into a definition of | |
1781 | a symbol */ | |
1782 | lgs->sdefs_chain = lgs->scoms_chain; | |
1783 | lgs->scoms_chain = (asymbol **)NULL; | |
1784 | commons_pending--; | |
1785 | /* Point to the correct common section */ | |
1786 | com->section = | |
1787 | ((lang_input_statement_type *) | |
1788 | (com->the_bfd->usrdata))->common_section; | |
1789 | /* Fix the size of the common section */ | |
1790 | com->section->size = ALIGN(com->section->size, align); | |
1791 | ||
1792 | /* Remember if this is the biggest alignment ever seen */ | |
1793 | if (power_of_two > com->section->alignment_power) { | |
1794 | com->section->alignment_power = power_of_two; | |
1795 | } | |
2fa0b342 | 1796 | |
b6316534 SC |
1797 | /* Symbol stops being common and starts being global, but |
1798 | we remember that it was common once. */ | |
2fa0b342 | 1799 | |
b6316534 SC |
1800 | com->flags = BSF_EXPORT | BSF_GLOBAL | BSF_OLD_COMMON; |
1801 | com->value = com->section->size; | |
1418c83b | 1802 | |
b6316534 | 1803 | if (write_map) |
1418c83b | 1804 | { |
b6316534 | 1805 | printf ("Allocating common %s: %x at %x %s\n", |
1418c83b SC |
1806 | lgs->name, |
1807 | (unsigned) size, | |
b6316534 SC |
1808 | (unsigned) com->value, |
1809 | com->the_bfd->filename); | |
1418c83b | 1810 | } |
097879bc | 1811 | |
b6316534 | 1812 | com->section->size += size; |
1418c83b | 1813 | |
b6316534 | 1814 | } |
1418c83b | 1815 | } |
b6316534 | 1816 | |
2fa0b342 | 1817 | } |
b6316534 | 1818 | } |
2fa0b342 | 1819 | } |
1418c83b SC |
1820 | |
1821 | ||
2fa0b342 DHW |
1822 | } |
1823 | ||
1824 | /* | |
1825 | run through the input files and ensure that every input | |
1826 | section has somewhere to go. If one is found without | |
1827 | a destination then create an input request and place it | |
1828 | into the statement tree. | |
1829 | */ | |
1830 | ||
1418c83b SC |
1831 | static void |
1832 | DEFUN_VOID(lang_place_orphans) | |
2fa0b342 DHW |
1833 | { |
1834 | lang_input_statement_type *file; | |
1835 | for (file = (lang_input_statement_type*)file_chain.head; | |
1836 | file != (lang_input_statement_type*)NULL; | |
1837 | file = (lang_input_statement_type*)file->next) { | |
1838 | asection *s; | |
1839 | for (s = file->the_bfd->sections; | |
1840 | s != (asection *)NULL; | |
1841 | s = s->next) { | |
1842 | if ( s->output_section == (asection *)NULL) { | |
1843 | /* This section of the file is not attatched, root | |
1844 | around for a sensible place for it to go */ | |
1845 | ||
1846 | if (file->common_section == s) { | |
1847 | /* This is a lonely common section which must | |
1848 | have come from an archive. We attatch to the | |
1849 | section with the wildcard */ | |
1418c83b SC |
1850 | if (config.relocateable_output != true |
1851 | && command_line.force_common_definition == false) { | |
1852 | if (default_common_section == | |
1853 | (lang_output_section_statement_type *)NULL) { | |
1854 | info("%P: No [COMMON] command, defaulting to .bss\n"); | |
1855 | ||
1856 | default_common_section = | |
1857 | lang_output_section_statement_lookup(".bss"); | |
1858 | ||
1859 | } | |
1860 | wild_doit(&default_common_section->children, s, | |
1861 | default_common_section, file); | |
1862 | } | |
2fa0b342 DHW |
1863 | } |
1864 | else { | |
1865 | lang_output_section_statement_type *os = | |
1866 | lang_output_section_statement_lookup(s->name); | |
1867 | ||
1868 | wild_doit(&os->children, s, os, file); | |
1869 | } | |
1870 | } | |
1871 | } | |
2fa0b342 DHW |
1872 | } |
1873 | } | |
1874 | ||
1875 | ||
2fa0b342 | 1876 | void |
1418c83b | 1877 | DEFUN(lang_set_flags,(ptr, flags), |
7bc4a0d7 | 1878 | int *ptr AND |
1418c83b | 1879 | CONST char *flags) |
2fa0b342 DHW |
1880 | { |
1881 | boolean state = true; | |
7bc4a0d7 | 1882 | *ptr= 0; |
2fa0b342 | 1883 | while (*flags) |
1418c83b SC |
1884 | { |
1885 | if (*flags == '!') { | |
1886 | state = false; | |
1887 | flags++; | |
1888 | } | |
1889 | else state = true; | |
1890 | switch (*flags) { | |
1891 | case 'R': | |
7bc4a0d7 | 1892 | /* ptr->flag_read = state; */ |
1418c83b SC |
1893 | break; |
1894 | case 'W': | |
7bc4a0d7 | 1895 | /* ptr->flag_write = state; */ |
1418c83b SC |
1896 | break; |
1897 | case 'X': | |
7bc4a0d7 | 1898 | /* ptr->flag_executable= state;*/ |
1418c83b SC |
1899 | break; |
1900 | case 'L': | |
b6316534 | 1901 | case 'I': |
7bc4a0d7 | 1902 | /* ptr->flag_loadable= state;*/ |
1418c83b SC |
1903 | break; |
1904 | default: | |
1905 | info("%P%F illegal syntax in flags\n"); | |
1906 | break; | |
1907 | } | |
2fa0b342 DHW |
1908 | flags++; |
1909 | } | |
2fa0b342 DHW |
1910 | } |
1911 | ||
1912 | ||
1913 | ||
1914 | void | |
1418c83b SC |
1915 | DEFUN(lang_for_each_file,(func), |
1916 | PROTO(void, (*func),(lang_input_statement_type *))) | |
2fa0b342 DHW |
1917 | { |
1918 | lang_input_statement_type *f; | |
1919 | for (f = (lang_input_statement_type *)file_chain.head; | |
1920 | f != (lang_input_statement_type *)NULL; | |
1921 | f = (lang_input_statement_type *)f->next) | |
1418c83b SC |
1922 | { |
1923 | func(f); | |
1924 | } | |
2fa0b342 DHW |
1925 | } |
1926 | ||
1927 | ||
1928 | void | |
1418c83b SC |
1929 | DEFUN(lang_for_each_input_section, (func), |
1930 | PROTO(void ,(*func),(bfd *ab, asection*as))) | |
2fa0b342 DHW |
1931 | { |
1932 | lang_input_statement_type *f; | |
1933 | for (f = (lang_input_statement_type *)file_chain.head; | |
1934 | f != (lang_input_statement_type *)NULL; | |
1935 | f = (lang_input_statement_type *)f->next) | |
1936 | { | |
1937 | asection *s; | |
1938 | for (s = f->the_bfd->sections; | |
1939 | s != (asection *)NULL; | |
1940 | s = s->next) { | |
1941 | func(f->the_bfd, s); | |
1942 | } | |
1943 | } | |
1944 | } | |
1945 | ||
1946 | ||
1947 | ||
1948 | void | |
1418c83b SC |
1949 | DEFUN(ldlang_add_file,(entry), |
1950 | lang_input_statement_type *entry) | |
2fa0b342 | 1951 | { |
1418c83b | 1952 | |
2fa0b342 DHW |
1953 | lang_statement_append(&file_chain, |
1954 | (lang_statement_union_type *)entry, | |
1955 | &entry->next); | |
1956 | } | |
1957 | ||
1958 | ||
1959 | ||
1960 | void | |
1418c83b SC |
1961 | DEFUN(lang_add_output,(name), |
1962 | CONST char *name) | |
2fa0b342 DHW |
1963 | { |
1964 | lang_output_statement_type *new = new_stat(lang_output_statement, | |
1965 | stat_ptr); | |
1966 | new->name = name; | |
1967 | had_output_filename = true; | |
1968 | } | |
1969 | ||
1970 | ||
1971 | static lang_output_section_statement_type *current_section; | |
1972 | ||
1973 | void | |
1418c83b SC |
1974 | DEFUN(lang_enter_output_section_statement, |
1975 | (output_section_statement_name, | |
1976 | address_exp, | |
7bc4a0d7 | 1977 | flags, |
1418c83b SC |
1978 | block_value), |
1979 | char *output_section_statement_name AND | |
1980 | etree_type *address_exp AND | |
7bc4a0d7 | 1981 | int flags AND |
1418c83b | 1982 | bfd_vma block_value) |
2fa0b342 DHW |
1983 | { |
1984 | lang_output_section_statement_type *os; | |
1985 | current_section = | |
1986 | os = | |
1987 | lang_output_section_statement_lookup(output_section_statement_name); | |
1988 | ||
81016051 SC |
1989 | |
1990 | ||
2fa0b342 DHW |
1991 | /* Add this statement to tree */ |
1992 | /* add_statement(lang_output_section_statement_enum, | |
1993 | output_section_statement);*/ | |
1994 | /* Make next things chain into subchain of this */ | |
1995 | ||
1996 | if (os->addr_tree == | |
1997 | (etree_type *)NULL) { | |
1998 | os->addr_tree = | |
1999 | address_exp; | |
2000 | } | |
7bc4a0d7 | 2001 | os->flags = flags; |
2fa0b342 DHW |
2002 | os->block_value = block_value; |
2003 | stat_ptr = & os->children; | |
2004 | ||
2005 | } | |
2006 | ||
2007 | ||
2008 | void | |
1418c83b | 2009 | DEFUN_VOID(lang_final) |
2fa0b342 DHW |
2010 | { |
2011 | if (had_output_filename == false) { | |
e89432c7 SC |
2012 | extern CONST char *output_filename; |
2013 | lang_add_output(output_filename); | |
2fa0b342 | 2014 | } |
2fa0b342 DHW |
2015 | } |
2016 | ||
2017 | ||
2018 | ||
2019 | ||
2020 | ||
1418c83b SC |
2021 | asymbol * |
2022 | DEFUN(create_symbol,(name, flags, section), | |
2023 | CONST char *name AND | |
2024 | flagword flags AND | |
2025 | asection *section) | |
2fa0b342 DHW |
2026 | { |
2027 | extern lang_input_statement_type *script_file; | |
3f8d46e7 | 2028 | asymbol **def_ptr = (asymbol **)ldmalloc((bfd_size_type)(sizeof(asymbol **))); |
2fa0b342 DHW |
2029 | /* Add this definition to script file */ |
2030 | asymbol *def = (asymbol *)bfd_make_empty_symbol(script_file->the_bfd); | |
1418c83b | 2031 | def->name = buystring(name); |
2fa0b342 DHW |
2032 | def->udata = 0; |
2033 | def->flags = flags; | |
2034 | def->section = section; | |
2035 | ||
2036 | *def_ptr = def; | |
2037 | Q_enter_global_ref(def_ptr); | |
2038 | return def; | |
2039 | } | |
2040 | ||
81016051 SC |
2041 | /* run through the symbol table, find all the symbols which are |
2042 | constructors and for each one, create statements to do something | |
2043 | like.. | |
2044 | ||
2045 | for | |
2046 | __CTOR_LIST__, foo | |
2047 | ||
2048 | __CTOR_LIST__ = . ; | |
2049 | LONG(__CTOR_LIST_END - . / 4 - 2) | |
2050 | *(foo) | |
2051 | __CTOR_LIST_END= . | |
2052 | ||
2053 | Put these statements onto a special list. | |
2054 | ||
2055 | */ | |
2056 | ||
2057 | typedef struct constructor_list | |
2058 | { | |
2059 | ldsym_type *sym; | |
2060 | struct constructor_list *next; | |
2061 | } constructor_list_type; | |
2062 | ||
2063 | static constructor_list_type *constructor_name_list; | |
2064 | ||
2065 | void | |
2066 | DEFUN(ldlang_add_constructor,(name), | |
2067 | ldsym_type *name) | |
2068 | { | |
2069 | ||
2070 | constructor_list_type *next = constructor_name_list; | |
2071 | ||
2072 | if (name->flags & SYM_CONSTRUCTOR) return; | |
2073 | ||
2074 | next = (constructor_list_type *) ldmalloc(sizeof(constructor_list_type)); | |
2075 | next->next= constructor_name_list; | |
2076 | next->sym= name; | |
2077 | name->flags |= SYM_CONSTRUCTOR; | |
2078 | constructor_name_list = next; | |
2079 | } | |
2080 | ||
2081 | void | |
2082 | DEFUN_VOID(find_constructors) | |
2083 | { | |
2084 | lang_statement_list_type *old = stat_ptr; | |
2085 | constructor_list_type *p = constructor_name_list; | |
2086 | stat_ptr = & constructor_list; | |
2087 | lang_list_init(stat_ptr); | |
2088 | while (p != (constructor_list_type *)NULL) | |
2089 | { | |
2090 | /* Have we already done this one ? */ | |
2091 | CONST char *name = p->sym->name; | |
2092 | int len = strlen(name); | |
2093 | char *end = ldmalloc(len+3); | |
2094 | strcpy(end, name); | |
2095 | strcat(end,"$e"); | |
2096 | ||
2097 | lang_add_assignment | |
2098 | ( exp_assop('=',name, exp_nameop(NAME,"."))); | |
2099 | ||
2100 | lang_add_data | |
2101 | (LONG, exp_binop('-', | |
2102 | exp_binop ( '/', | |
2103 | exp_binop ( '-', | |
2104 | exp_nameop(NAME, end), | |
2105 | exp_nameop(NAME,".")), | |
2106 | exp_intop(4)), | |
2107 | ||
2108 | exp_intop(2))); | |
2109 | ||
2110 | ||
2111 | lang_add_wild(name, (char *)NULL); | |
2112 | lang_add_data(LONG, exp_intop(0)); | |
2113 | lang_add_assignment | |
2114 | (exp_assop('=', end, exp_nameop(NAME,"."))); | |
2115 | p = p->next; | |
2116 | } | |
2117 | ||
2118 | ||
2119 | ||
2fa0b342 | 2120 | |
81016051 SC |
2121 | stat_ptr = old; |
2122 | } | |
2fa0b342 | 2123 | void |
1418c83b SC |
2124 | DEFUN_VOID(lang_process) |
2125 | { | |
2126 | if (had_script == false) { | |
2127 | parse_line(ldemul_get_script()); | |
2128 | } | |
2129 | lang_reasonable_defaults(); | |
2130 | current_target = default_target; | |
2131 | ||
2132 | lang_for_each_statement(ldlang_open_output); /* Open the output file */ | |
2133 | /* For each output section statement, create a section in the output | |
2134 | file */ | |
2135 | lang_create_output_section_statements(); | |
2136 | ||
2137 | /* Create a dummy bfd for the script */ | |
2138 | lang_init_script_file(); | |
2139 | ||
2140 | /* Add to the hash table all undefineds on the command line */ | |
2141 | lang_place_undefineds(); | |
2142 | ||
2143 | /* Create a bfd for each input file */ | |
2144 | current_target = default_target; | |
2145 | lang_for_each_statement(open_input_bfds); | |
2146 | ||
a0ad3035 | 2147 | common_section.userdata = (PTR)&common_section_userdata; |
1418c83b | 2148 | |
81016051 | 2149 | |
1418c83b SC |
2150 | /* Run through the contours of the script and attatch input sections |
2151 | to the correct output sections | |
2152 | */ | |
81016051 | 2153 | find_constructors(); |
1418c83b SC |
2154 | map_input_to_output_sections(statement_list.head, (char *)NULL, |
2155 | ( lang_output_section_statement_type *)NULL); | |
2156 | ||
81016051 | 2157 | |
1418c83b SC |
2158 | /* Find any sections not attatched explicitly and handle them */ |
2159 | lang_place_orphans(); | |
2160 | ||
2161 | /* Size up the common data */ | |
2162 | lang_common(); | |
2163 | ||
2164 | ldemul_before_allocation(); | |
2165 | ||
2166 | /* Size up the sections */ | |
2167 | lang_size_sections(statement_list.head, | |
2168 | (lang_output_section_statement_type *)NULL, | |
2169 | &(statement_list.head), 0, (bfd_vma)0); | |
2170 | ||
2171 | /* See if anything special should be done now we know how big | |
2172 | everything is */ | |
2173 | ldemul_after_allocation(); | |
2174 | ||
2175 | /* Do all the assignments, now that we know the final restingplaces | |
2176 | of all the symbols */ | |
2177 | ||
2178 | lang_do_assignments(statement_list.head, | |
2179 | (lang_output_section_statement_type *)NULL, | |
2180 | 0, (bfd_vma)0); | |
2181 | ||
2182 | /* Make sure that we're not mixing architectures */ | |
2183 | ||
2184 | lang_check(); | |
2185 | ||
2186 | /* Move the global symbols around */ | |
2187 | lang_relocate_globals(); | |
2188 | ||
2189 | /* Final stuffs */ | |
2190 | lang_finish(); | |
2fa0b342 DHW |
2191 | } |
2192 | ||
2193 | ||
2194 | /* EXPORTED TO YACC */ | |
1418c83b | 2195 | |
2fa0b342 | 2196 | void |
1418c83b SC |
2197 | DEFUN(lang_add_wild,(section_name, filename), |
2198 | CONST char *CONST section_name AND | |
2199 | CONST char *CONST filename) | |
2200 | { | |
2201 | lang_wild_statement_type *new = new_stat(lang_wild_statement, | |
2202 | stat_ptr); | |
2203 | ||
2204 | if (section_name != (char *)NULL && strcmp(section_name,"COMMON") == 0) | |
2205 | { | |
2206 | placed_commons = true; | |
2207 | } | |
2208 | if (filename != (char *)NULL) { | |
2209 | lang_has_input_file = true; | |
2210 | } | |
2211 | new->section_name = section_name; | |
2212 | new->filename = filename; | |
2213 | lang_list_init(&new->children); | |
2214 | } | |
2215 | void | |
2216 | DEFUN(lang_section_start,(name, address), | |
2217 | CONST char *name AND | |
2218 | etree_type *address) | |
2fa0b342 DHW |
2219 | { |
2220 | lang_address_statement_type *ad =new_stat(lang_address_statement, stat_ptr); | |
2221 | ad->section_name = name; | |
2222 | ad->address = address; | |
2223 | } | |
1418c83b SC |
2224 | |
2225 | void | |
2226 | DEFUN(lang_add_entry,(name), | |
2227 | CONST char *name) | |
2fa0b342 DHW |
2228 | { |
2229 | entry_symbol = name; | |
2230 | } | |
2231 | ||
2232 | void | |
1418c83b SC |
2233 | DEFUN(lang_add_target,(name), |
2234 | CONST char *name) | |
2fa0b342 DHW |
2235 | { |
2236 | lang_target_statement_type *new = new_stat(lang_target_statement, | |
2237 | stat_ptr); | |
2238 | new->target = name; | |
2239 | ||
2240 | } | |
2fa0b342 | 2241 | |
1418c83b SC |
2242 | |
2243 | ||
2fa0b342 DHW |
2244 | |
2245 | void | |
1418c83b SC |
2246 | DEFUN(lang_add_map,(name), |
2247 | CONST char *name) | |
2fa0b342 DHW |
2248 | { |
2249 | while (*name) { | |
2250 | switch (*name) { | |
2251 | case 'F': | |
2252 | map_option_f = true; | |
2253 | break; | |
2254 | } | |
2255 | name++; | |
2256 | } | |
2257 | } | |
2258 | ||
1418c83b SC |
2259 | void |
2260 | DEFUN(lang_add_fill,(exp), | |
2261 | int exp) | |
2fa0b342 DHW |
2262 | { |
2263 | lang_fill_statement_type *new = new_stat(lang_fill_statement, | |
2264 | stat_ptr); | |
2265 | new->fill = exp; | |
2266 | } | |
2267 | ||
1418c83b SC |
2268 | void |
2269 | DEFUN(lang_add_data,(type, exp), | |
2270 | int type AND | |
2271 | union etree_union *exp) | |
2fa0b342 DHW |
2272 | { |
2273 | ||
2274 | lang_data_statement_type *new = new_stat(lang_data_statement, | |
2275 | stat_ptr); | |
2276 | new->exp = exp; | |
2277 | new->type = type; | |
2278 | ||
2279 | } | |
2280 | void | |
1418c83b SC |
2281 | DEFUN(lang_add_assignment,(exp), |
2282 | etree_type *exp) | |
2fa0b342 DHW |
2283 | { |
2284 | lang_assignment_statement_type *new = new_stat(lang_assignment_statement, | |
2285 | stat_ptr); | |
2286 | new->exp = exp; | |
2287 | } | |
2288 | ||
2289 | void | |
1418c83b SC |
2290 | DEFUN(lang_add_attribute,(attribute), |
2291 | enum statement_enum attribute) | |
2fa0b342 DHW |
2292 | { |
2293 | new_statement(attribute, sizeof(lang_statement_union_type),stat_ptr); | |
2294 | } | |
2295 | ||
2296 | ||
2297 | ||
2298 | void | |
1418c83b SC |
2299 | DEFUN(lang_startup,(name), |
2300 | CONST char *name) | |
2fa0b342 DHW |
2301 | { |
2302 | if (startup_file != (char *)NULL) { | |
2303 | info("%P%FMultiple STARTUP files\n"); | |
2304 | } | |
2305 | first_file->filename = name; | |
2306 | first_file->local_sym_name = name; | |
2307 | ||
2308 | startup_file= name; | |
2309 | } | |
2310 | void | |
1418c83b SC |
2311 | DEFUN(lang_float,(maybe), |
2312 | boolean maybe) | |
2fa0b342 DHW |
2313 | { |
2314 | lang_float_flag = maybe; | |
2315 | } | |
2316 | ||
2317 | void | |
1418c83b SC |
2318 | DEFUN(lang_leave_output_section_statement,(fill, memspec), |
2319 | bfd_vma fill AND | |
2320 | CONST char *memspec) | |
2fa0b342 DHW |
2321 | { |
2322 | current_section->fill = fill; | |
2323 | current_section->region = lang_memory_region_lookup(memspec); | |
2324 | stat_ptr = &statement_list; | |
81016051 SC |
2325 | |
2326 | /* We remember if we are closing a .data section, since we use it to | |
2327 | store constructors in */ | |
2328 | if (strcmp(current_section->name, ".data") ==0) { | |
2329 | end_of_data_section_statement_list = statement_list; | |
2330 | ||
2331 | } | |
2fa0b342 | 2332 | } |
9f32f7c2 SC |
2333 | /* |
2334 | Create an absolute symbol with the given name with the value of the | |
2335 | address of first byte of the section named. | |
2fa0b342 | 2336 | |
9f32f7c2 SC |
2337 | If the symbol already exists, then do nothing. |
2338 | */ | |
8cb5eb31 | 2339 | void |
1418c83b SC |
2340 | DEFUN(lang_abs_symbol_at_beginning_of,(section, name), |
2341 | CONST char *section AND | |
2342 | CONST char *name) | |
8cb5eb31 | 2343 | { |
c660714f | 2344 | if (ldsym_undefined(name)) { |
9f32f7c2 SC |
2345 | extern bfd *output_bfd; |
2346 | extern asymbol *create_symbol(); | |
2347 | asection *s = bfd_get_section_by_name(output_bfd, section); | |
2348 | asymbol *def = create_symbol(name, | |
2349 | BSF_GLOBAL | BSF_EXPORT | | |
2350 | BSF_ABSOLUTE, | |
2351 | (asection *)NULL); | |
2352 | if (s != (asection *)NULL) { | |
2353 | def->value = s->vma; | |
2354 | } | |
2355 | else { | |
2356 | def->value = 0; | |
2357 | } | |
8cb5eb31 SC |
2358 | } |
2359 | } | |
2360 | ||
9f32f7c2 SC |
2361 | /* |
2362 | Create an absolute symbol with the given name with the value of the | |
2363 | address of the first byte after the end of the section named. | |
2364 | ||
2365 | If the symbol already exists, then do nothing. | |
2366 | */ | |
2fa0b342 | 2367 | void |
1418c83b SC |
2368 | DEFUN(lang_abs_symbol_at_end_of,(section, name), |
2369 | CONST char *section AND | |
2370 | CONST char *name) | |
2fa0b342 | 2371 | { |
c660714f | 2372 | if (ldsym_undefined(name)){ |
9f32f7c2 SC |
2373 | extern bfd *output_bfd; |
2374 | extern asymbol *create_symbol(); | |
2375 | asection *s = bfd_get_section_by_name(output_bfd, section); | |
2376 | /* Add a symbol called _end */ | |
2377 | asymbol *def = create_symbol(name, | |
2378 | BSF_GLOBAL | BSF_EXPORT | | |
2379 | BSF_ABSOLUTE, | |
2380 | (asection *)NULL); | |
2381 | if (s != (asection *)NULL) { | |
2382 | def->value = s->vma + s->size; | |
2383 | } | |
2384 | else { | |
2385 | def->value = 0; | |
2386 | } | |
2fa0b342 DHW |
2387 | } |
2388 | } | |
2389 | ||
2390 | void | |
1418c83b SC |
2391 | DEFUN(lang_statement_append,(list, element, field), |
2392 | lang_statement_list_type *list AND | |
2393 | lang_statement_union_type *element AND | |
2394 | lang_statement_union_type **field) | |
2fa0b342 DHW |
2395 | { |
2396 | *(list->tail) = element; | |
2397 | list->tail = field; | |
2398 | } | |
2399 | ||
097879bc SC |
2400 | /* Set the output format type */ |
2401 | void | |
2402 | DEFUN(lang_add_output_format,(format), | |
2403 | CONST char *format) | |
2404 | { | |
2405 | output_target = format; | |
2406 | } | |
a37cc0c0 | 2407 |