Commit | Line | Data |
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2d1a2445 PB |
1 | /* All symbol handling for the linker |
2 | Copyright (C) 1991 Free Software Foundation, Inc. | |
3 | Written by Steve Chamberlain steve@cygnus.com | |
4 | ||
2fa0b342 DHW |
5 | This file is part of GLD, the Gnu Linker. |
6 | ||
2d1a2445 | 7 | This program is free software; you can redistribute it and/or modify |
2fa0b342 | 8 | it under the terms of the GNU General Public License as published by |
2d1a2445 PB |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. | |
2fa0b342 | 11 | |
2d1a2445 | 12 | This program is distributed in the hope that it will be useful, |
2fa0b342 DHW |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
2d1a2445 PB |
18 | along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
2fa0b342 | 20 | |
2fa0b342 | 21 | /* |
1af27af8 SC |
22 | We keep a hash table of global symbols. Each entry in a hash table |
23 | is called an ldsym_type. Each has three chains; a pointer to a | |
24 | chain of definitions for the symbol (hopefully one long), a pointer | |
25 | to a chain of references to the symbol, and a pointer to a chain of | |
26 | common symbols. Each pointer points into the canonical symbol table | |
32846f9c | 27 | provided by bfd, each one of which points to an asymbol. During |
1af27af8 SC |
28 | linkage, the linker uses the udata field to point to the next entry |
29 | in a canonical table.... | |
30 | ||
31 | ||
32 | ld_sym | |
33 | | | | |
34 | +----------+ +----------+ | |
35 | | defs | a canonical symbol table | |
36 | +----------+ +----------+ | |
37 | | refs | -----> | one entry| -----> asymbol | |
38 | +----------+ +----------+ | | | |
39 | | coms | | | +---------+ | |
40 | +----------+ +----------+ | udata |-----> another canonical symbol | |
41 | +---------+ | |
42 | ||
43 | ||
44 | ||
45 | It is very simple to make all the symbol pointers point to the same | |
46 | definition - just run down the chain and make the asymbols pointers | |
47 | within the canonical table point to the asymbol attacthed to the | |
48 | definition of the symbol. | |
49 | ||
50 | */ | |
51 | ||
2fa0b342 | 52 | #include "bfd.h" |
f177a611 | 53 | #include "sysdep.h" |
2fa0b342 DHW |
54 | |
55 | #include "ld.h" | |
56 | #include "ldsym.h" | |
57 | #include "ldmisc.h" | |
58 | #include "ldlang.h" | |
59 | /* IMPORT */ | |
60 | ||
61 | extern bfd *output_bfd; | |
d646b568 SC |
62 | extern strip_symbols_type strip_symbols; |
63 | extern discard_locals_type discard_locals; | |
2fa0b342 DHW |
64 | /* Head and tail of global symbol table chronological list */ |
65 | ||
66 | ldsym_type *symbol_head = (ldsym_type *)NULL; | |
67 | ldsym_type **symbol_tail_ptr = &symbol_head; | |
f3b36ecb KR |
68 | CONST char *keepsyms_file; |
69 | int kept_syms; | |
2fa0b342 | 70 | |
6fd50a20 SC |
71 | extern ld_config_type config; |
72 | ||
bfbdc80f SC |
73 | struct obstack global_sym_obstack; |
74 | #define obstack_chunk_alloc ldmalloc | |
75 | #define obstack_chunk_free free | |
76 | ||
2fa0b342 DHW |
77 | /* |
78 | incremented for each symbol in the ldsym_type table | |
79 | no matter what flavour it is | |
80 | */ | |
81 | unsigned int global_symbol_count; | |
82 | ||
83 | /* IMPORTS */ | |
84 | ||
85 | extern boolean option_longmap ; | |
86 | ||
87 | /* LOCALS */ | |
88 | #define TABSIZE 1009 | |
89 | static ldsym_type *global_symbol_hash_table[TABSIZE]; | |
90 | ||
91 | /* Compute the hash code for symbol name KEY. */ | |
1af27af8 SC |
92 | static |
93 | #ifdef __GNUC__ | |
b773e0e5 | 94 | __inline |
1af27af8 | 95 | #endif |
b773e0e5 | 96 | |
2fa0b342 | 97 | int |
1af27af8 SC |
98 | DEFUN(hash_string,(key), |
99 | CONST char *key) | |
2fa0b342 | 100 | { |
1af27af8 | 101 | register CONST char *cp; |
2fa0b342 DHW |
102 | register int k; |
103 | ||
104 | cp = key; | |
105 | k = 0; | |
106 | while (*cp) | |
107 | k = (((k << 1) + (k >> 14)) ^ (*cp++)) & 0x3fff; | |
108 | ||
109 | return k; | |
110 | } | |
111 | ||
1af27af8 SC |
112 | static |
113 | #ifdef __GNUC__ | |
b773e0e5 | 114 | __inline |
1af27af8 SC |
115 | #endif ldsym_type *bp; |
116 | ldsym_type * | |
117 | DEFUN(search,(key,hashval) , | |
118 | CONST char *key AND | |
119 | int hashval) | |
120 | { | |
121 | ldsym_type *bp; | |
122 | for (bp = global_symbol_hash_table[hashval]; bp; bp = bp->link) | |
123 | if (! strcmp (key, bp->name)) { | |
124 | if (bp->flags & SYM_INDIRECT) { | |
125 | /* Use the symbol we're aliased to instead */ | |
126 | return (ldsym_type *)(bp->sdefs_chain); | |
127 | } | |
128 | return bp; | |
129 | } | |
130 | return 0; | |
131 | } | |
132 | ||
133 | ||
2fa0b342 DHW |
134 | /* Get the symbol table entry for the global symbol named KEY. |
135 | Create one if there is none. */ | |
136 | ldsym_type * | |
99fe4553 SC |
137 | DEFUN(ldsym_get,(key), |
138 | CONST char *key) | |
2fa0b342 DHW |
139 | { |
140 | register int hashval; | |
141 | register ldsym_type *bp; | |
142 | ||
143 | /* Determine the proper bucket. */ | |
144 | ||
145 | hashval = hash_string (key) % TABSIZE; | |
146 | ||
147 | /* Search the bucket. */ | |
1af27af8 SC |
148 | bp = search(key, hashval); |
149 | if(bp) { | |
150 | return bp; | |
151 | } | |
2fa0b342 DHW |
152 | |
153 | /* Nothing was found; create a new symbol table entry. */ | |
154 | ||
bfbdc80f | 155 | bp = (ldsym_type *) obstack_alloc (&global_sym_obstack, (bfd_size_type)(sizeof (ldsym_type))); |
2fa0b342 DHW |
156 | bp->srefs_chain = (asymbol **)NULL; |
157 | bp->sdefs_chain = (asymbol **)NULL; | |
158 | bp->scoms_chain = (asymbol **)NULL; | |
bfbdc80f | 159 | bp->name = obstack_copy(&global_sym_obstack, key, strlen(key)+1); |
81016051 | 160 | bp->flags = 0; |
2fa0b342 DHW |
161 | /* Add the entry to the bucket. */ |
162 | ||
163 | bp->link = global_symbol_hash_table[hashval]; | |
164 | global_symbol_hash_table[hashval] = bp; | |
165 | ||
166 | /* Keep the chronological list up to date too */ | |
167 | *symbol_tail_ptr = bp; | |
168 | symbol_tail_ptr = &bp->next; | |
169 | bp->next = 0; | |
170 | global_symbol_count++; | |
171 | ||
172 | return bp; | |
173 | } | |
174 | ||
175 | /* Like `ldsym_get' but return 0 if the symbol is not already known. */ | |
176 | ||
177 | ldsym_type * | |
99fe4553 SC |
178 | DEFUN(ldsym_get_soft,(key), |
179 | CONST char *key) | |
2fa0b342 DHW |
180 | { |
181 | register int hashval; | |
2fa0b342 DHW |
182 | /* Determine which bucket. */ |
183 | ||
184 | hashval = hash_string (key) % TABSIZE; | |
185 | ||
186 | /* Search the bucket. */ | |
7fe11a82 | 187 | return search(key, hashval); |
2fa0b342 DHW |
188 | } |
189 | ||
f3b36ecb KR |
190 | static asymbol ** |
191 | process_keepsyms (table, size) | |
192 | asymbol ** table; | |
193 | int size; | |
194 | { | |
195 | struct obstack obstack; | |
196 | char *start_of_obstack; | |
197 | FILE *ks_file = 0; | |
198 | asymbol **out = table; | |
199 | asymbol **end = table + size; | |
200 | asymbol **sym; | |
201 | ||
202 | if (!keepsyms_file || size == 0) | |
203 | return end; | |
204 | obstack_init (&obstack); | |
205 | obstack_alloc (&obstack, 1); | |
206 | obstack_finish (&obstack); | |
207 | start_of_obstack = obstack_alloc (&obstack, 1); | |
208 | ks_file = fopen (keepsyms_file, "r"); | |
209 | if (!ks_file) | |
210 | { | |
211 | info ("%X%P: can't open keep-symbols file `%s'\n", keepsyms_file); | |
212 | goto egress; | |
213 | } | |
214 | errno = 0; | |
2fa0b342 | 215 | |
f3b36ecb KR |
216 | #define KEEP(S) \ |
217 | do { asymbol **p=(S), *tmp=*out; *out=*p; *p=tmp; out++; } while (0) | |
2fa0b342 | 218 | |
f3b36ecb KR |
219 | while (!feof (ks_file) && !ferror (ks_file)) |
220 | { | |
221 | int c; | |
222 | char *ptr; | |
223 | int found = 0; | |
2fa0b342 | 224 | |
f3b36ecb KR |
225 | obstack_free (&obstack, start_of_obstack); |
226 | do | |
227 | { | |
228 | c = getc (ks_file); | |
229 | if (c == '\n') | |
230 | c = 0; | |
231 | obstack_1grow (&obstack, c); | |
232 | } | |
233 | while (c > 0); | |
234 | if (c == EOF) | |
235 | { | |
236 | if (!feof (ks_file)) | |
237 | /* error occurred */ | |
238 | { | |
239 | info ("%X%P: error reading keep-symbols file `%s': %E\n", | |
240 | keepsyms_file); | |
241 | out = end; | |
242 | goto egress; | |
243 | } | |
244 | if (obstack_next_free (&obstack) != obstack_base (&obstack) + 1) | |
245 | /* eof in middle of symbol */ | |
246 | { | |
247 | info ("%X%P: eof reached mid-line while reading keep-symbols file `%s'\n", | |
248 | keepsyms_file); | |
249 | out = end; | |
250 | goto egress; | |
251 | } | |
252 | /* All okay -- no incomplete lines, EOF reached. */ | |
253 | break; | |
254 | } | |
255 | ptr = obstack_next_free (&obstack) - 2; | |
256 | /* discard trailing trash */ | |
257 | while (*ptr == ' ' | |
258 | || *ptr == '\t') | |
259 | *ptr-- = 0; | |
260 | ptr = obstack_base (&obstack); | |
261 | for (sym = out; sym < end; sym++) | |
262 | if (!strcmp ((*sym)->name, ptr)) | |
263 | { | |
264 | KEEP (sym); | |
265 | found = 1; | |
266 | } | |
267 | if (!found) | |
268 | info ("%P: symbol `%s' (requested to be kept) not found\n", ptr); | |
269 | } | |
270 | /* It'd be slightly faster to move this pass above the previous one, | |
271 | but that'd mean any symbols preserved in this pass would generate | |
272 | warnings if they were also listed in the keepsyms file. */ | |
273 | for (sym = out; sym < end; sym++) | |
274 | { | |
275 | asymbol *s = *sym; | |
276 | if (s->section == &bfd_und_section | |
277 | || s->section == &bfd_com_section | |
278 | || s->flags & BSF_KEEP_G) | |
279 | KEEP (sym); | |
280 | } | |
281 | egress: | |
282 | obstack_free (&obstack, start_of_obstack); | |
283 | if (ks_file) | |
284 | fclose (ks_file); | |
285 | return out; | |
286 | } | |
2fa0b342 DHW |
287 | |
288 | static void | |
289 | list_file_locals (entry) | |
290 | lang_input_statement_type *entry; | |
291 | { | |
292 | asymbol **q; | |
6fd50a20 SC |
293 | fprintf (config.map_file, "\nLocal symbols of "); |
294 | minfo("%I", entry); | |
295 | fprintf (config.map_file, ":\n\n"); | |
2fa0b342 DHW |
296 | if (entry->asymbols) { |
297 | for (q = entry->asymbols; *q; q++) | |
298 | { | |
299 | asymbol *p = *q; | |
300 | /* If this is a definition, | |
301 | update it if necessary by this file's start address. */ | |
302 | if (p->flags & BSF_LOCAL) | |
303 | info(" %V %s\n",p->value, p->name); | |
304 | } | |
305 | } | |
306 | } | |
307 | ||
308 | ||
309 | static void | |
6fd50a20 SC |
310 | DEFUN(print_file_stuff,(f), |
311 | lang_input_statement_type *f) | |
2fa0b342 | 312 | { |
6fd50a20 | 313 | fprintf (config.map_file," %s\n", f->filename); |
2fa0b342 | 314 | if (f->just_syms_flag) |
c611e285 | 315 | { |
6fd50a20 | 316 | fprintf (config.map_file, " symbols only\n"); |
c611e285 | 317 | } |
2fa0b342 | 318 | else |
c611e285 SC |
319 | { |
320 | asection *s; | |
321 | if (true || option_longmap) { | |
bfbdc80f SC |
322 | for (s = f->the_bfd->sections; |
323 | s != (asection *)NULL; | |
324 | s = s->next) { | |
325 | print_address(s->output_offset); | |
326 | if (s->reloc_done) | |
327 | { | |
328 | fprintf (config.map_file, " %08x 2**%2ud %s\n", | |
329 | (unsigned)bfd_get_section_size_after_reloc(s), | |
330 | s->alignment_power, s->name); | |
331 | } | |
c611e285 | 332 | |
bfbdc80f SC |
333 | else |
334 | { | |
335 | fprintf (config.map_file, " %08x 2**%2ud %s\n", | |
336 | (unsigned)bfd_get_section_size_before_reloc(s), | |
337 | s->alignment_power, s->name); | |
338 | } | |
c611e285 | 339 | } |
bfbdc80f SC |
340 | } |
341 | else | |
342 | { | |
343 | for (s = f->the_bfd->sections; | |
344 | s != (asection *)NULL; | |
345 | s = s->next) { | |
346 | fprintf(config.map_file, "%s ", s->name); | |
347 | print_address(s->output_offset); | |
348 | fprintf(config.map_file, "(%x)", (unsigned)bfd_get_section_size_after_reloc(s)); | |
2fa0b342 | 349 | } |
bfbdc80f SC |
350 | fprintf(config.map_file, "hex \n"); |
351 | } | |
c611e285 | 352 | } |
6fd50a20 | 353 | fprintf (config.map_file, "\n"); |
2fa0b342 DHW |
354 | } |
355 | ||
356 | void | |
357 | ldsym_print_symbol_table () | |
358 | { | |
6fd50a20 | 359 | fprintf (config.map_file, "**FILES**\n\n"); |
2fa0b342 DHW |
360 | |
361 | lang_for_each_file(print_file_stuff); | |
362 | ||
6fd50a20 SC |
363 | fprintf(config.map_file, "**GLOBAL SYMBOLS**\n\n"); |
364 | fprintf(config.map_file, "offset section offset symbol\n"); | |
2fa0b342 DHW |
365 | { |
366 | register ldsym_type *sp; | |
367 | ||
368 | for (sp = symbol_head; sp; sp = sp->next) | |
369 | { | |
1af27af8 | 370 | if (sp->flags & SYM_INDIRECT) { |
6fd50a20 | 371 | fprintf(config.map_file,"indirect %s to %s\n", |
1af27af8 | 372 | sp->name, (((ldsym_type *)(sp->sdefs_chain))->name)); |
2fa0b342 DHW |
373 | } |
374 | else { | |
d9c53949 SC |
375 | if (sp->sdefs_chain) |
376 | { | |
377 | asymbol *defsym = *(sp->sdefs_chain); | |
378 | asection *defsec = bfd_get_section(defsym); | |
379 | print_address(defsym->value); | |
380 | if (defsec) | |
381 | { | |
6fd50a20 | 382 | fprintf(config.map_file, " %-10s", |
d9c53949 SC |
383 | bfd_section_name(output_bfd, |
384 | defsec)); | |
385 | print_space(); | |
386 | print_address(defsym->value+defsec->vma); | |
387 | ||
388 | } | |
389 | else | |
390 | { | |
6fd50a20 | 391 | fprintf(config.map_file, " ......."); |
d9c53949 SC |
392 | } |
393 | ||
394 | } | |
395 | ||
396 | ||
397 | if (sp->scoms_chain) { | |
6fd50a20 | 398 | fprintf(config.map_file, "common "); |
d9c53949 | 399 | print_address((*(sp->scoms_chain))->value); |
6fd50a20 | 400 | fprintf(config.map_file, " %s ",sp->name); |
d9c53949 SC |
401 | } |
402 | else if (sp->sdefs_chain) { | |
6fd50a20 | 403 | fprintf(config.map_file, " %s ",sp->name); |
d9c53949 SC |
404 | } |
405 | else { | |
6fd50a20 SC |
406 | fprintf(config.map_file, "undefined "); |
407 | fprintf(config.map_file, "%s ",sp->name); | |
1af27af8 | 408 | |
d9c53949 | 409 | } |
2fa0b342 | 410 | } |
19b03b7a | 411 | print_nl(); |
2fa0b342 DHW |
412 | |
413 | } | |
414 | } | |
d9c53949 SC |
415 | if (option_longmap) { |
416 | lang_for_each_file(list_file_locals); | |
417 | } | |
2fa0b342 DHW |
418 | } |
419 | ||
420 | extern lang_output_section_statement_type *create_object_symbols; | |
421 | extern char lprefix; | |
422 | static asymbol ** | |
423 | write_file_locals(output_buffer) | |
424 | asymbol **output_buffer; | |
425 | { | |
bfbdc80f SC |
426 | LANG_FOR_EACH_INPUT_STATEMENT(entry) |
427 | { | |
428 | /* Run trough the symbols and work out what to do with them */ | |
429 | unsigned int i; | |
430 | ||
431 | /* Add one for the filename symbol if needed */ | |
432 | if (create_object_symbols | |
433 | != (lang_output_section_statement_type *)NULL) { | |
434 | asection *s; | |
435 | for (s = entry->the_bfd->sections; | |
436 | s != (asection *)NULL; | |
437 | s = s->next) { | |
438 | if (s->output_section == create_object_symbols->bfd_section) { | |
439 | /* Add symbol to this section */ | |
440 | asymbol * newsym = | |
441 | (asymbol *)bfd_make_empty_symbol(entry->the_bfd); | |
442 | newsym->name = entry->local_sym_name; | |
443 | /* The symbol belongs to the output file's text section */ | |
444 | ||
445 | /* The value is the start of this section in the output file*/ | |
446 | newsym->value = 0; | |
f3b36ecb KR |
447 | /* FIXME: Usurping BSF_KEEP_G flag, since it's defined as |
448 | "used by the linker" and I can't find any other code that | |
449 | uses it. Should be a cleaner way of doing this (like an | |
450 | "application flags" field in the symbol structure?). */ | |
451 | newsym->flags = BSF_LOCAL | BSF_KEEP_G; | |
bfbdc80f SC |
452 | newsym->section = s; |
453 | *output_buffer++ = newsym; | |
454 | break; | |
455 | } | |
456 | } | |
457 | } | |
458 | for (i = 0; i < entry->symbol_count; i++) | |
2fa0b342 | 459 | { |
bfbdc80f SC |
460 | asymbol *p = entry->asymbols[i]; |
461 | /* FIXME, temporary hack, since not all of ld knows about the new abs section convention */ | |
462 | ||
463 | if (p->section == 0) | |
464 | p->section = &bfd_abs_section; | |
465 | if (flag_is_global(p->flags) ) | |
466 | { | |
467 | /* We are only interested in outputting | |
468 | globals at this stage in special circumstances */ | |
469 | if (p->the_bfd == entry->the_bfd | |
470 | && flag_is_not_at_end(p->flags)) { | |
471 | /* And this is one of them */ | |
472 | *(output_buffer++) = p; | |
473 | p->flags |= BSF_KEEP; | |
2fa0b342 DHW |
474 | } |
475 | } | |
bfbdc80f | 476 | else { |
571c4c26 KR |
477 | if (flag_is_debugger(p->flags)) |
478 | { | |
479 | /* Only keep the debugger symbols if no stripping required */ | |
480 | if (strip_symbols == STRIP_NONE) { | |
481 | *output_buffer++ = p; | |
482 | } | |
483 | } | |
484 | else if (p->section == &bfd_und_section | |
485 | || p->section == &bfd_com_section) | |
486 | { | |
487 | /* These must be global. */ | |
488 | } | |
489 | else if (flag_is_ordinary_local(p->flags)) | |
2fa0b342 | 490 | { |
bfbdc80f SC |
491 | if (discard_locals == DISCARD_ALL) |
492 | { } | |
493 | else if (discard_locals == DISCARD_L && | |
494 | (p->name[0] == lprefix)) | |
495 | { } | |
496 | else if (p->flags == BSF_WARNING) | |
497 | { } | |
498 | else | |
499 | { *output_buffer++ = p; } | |
500 | } | |
bfbdc80f SC |
501 | else if (p->flags & BSF_CTOR) { |
502 | /* Throw it away */ | |
503 | } | |
504 | else | |
505 | { | |
506 | FAIL(); | |
507 | } | |
508 | } | |
509 | } | |
2fa0b342 DHW |
510 | |
511 | ||
bfbdc80f | 512 | } |
2fa0b342 DHW |
513 | return output_buffer; |
514 | } | |
515 | ||
516 | ||
517 | static asymbol ** | |
518 | write_file_globals(symbol_table) | |
519 | asymbol **symbol_table; | |
520 | { | |
521 | FOR_EACH_LDSYM(sp) | |
522 | { | |
1af27af8 | 523 | if ((sp->flags & SYM_INDIRECT) == 0 && sp->sdefs_chain != (asymbol **)NULL) { |
2fa0b342 DHW |
524 | asymbol *bufp = (*(sp->sdefs_chain)); |
525 | ||
526 | if ((bufp->flags & BSF_KEEP) ==0) { | |
527 | ASSERT(bufp != (asymbol *)NULL); | |
528 | ||
529 | bufp->name = sp->name; | |
530 | ||
531 | if (sp->scoms_chain != (asymbol **)NULL) | |
532 | ||
533 | { | |
534 | /* | |
535 | defined as common but not allocated, this happens | |
536 | only with -r and not -d, write out a common | |
537 | definition | |
538 | */ | |
539 | bufp = *(sp->scoms_chain); | |
540 | } | |
541 | *symbol_table++ = bufp; | |
542 | } | |
543 | } | |
544 | else if (sp->scoms_chain != (asymbol **)NULL) { | |
545 | /* This symbol is a common - just output */ | |
546 | asymbol *bufp = (*(sp->scoms_chain)); | |
547 | *symbol_table++ = bufp; | |
548 | } | |
549 | else if (sp->srefs_chain != (asymbol **)NULL) { | |
550 | /* This symbol is undefined but has a reference */ | |
551 | asymbol *bufp = (*(sp->srefs_chain)); | |
552 | *symbol_table++ = bufp; | |
553 | } | |
554 | else { | |
555 | /* | |
556 | This symbol has neither defs nor refs, it must have come | |
557 | from the command line, since noone has used it it has no | |
558 | data attatched, so we'll ignore it | |
559 | */ | |
560 | } | |
561 | } | |
562 | return symbol_table; | |
563 | } | |
564 | ||
2fa0b342 DHW |
565 | void |
566 | ldsym_write() | |
567 | { | |
f3b36ecb KR |
568 | if (keepsyms_file != 0 |
569 | && strip_symbols != STRIP_SOME) | |
570 | { | |
571 | info ("%P `-retain-symbols-file' overrides `-s' and `-S'\n"); | |
572 | strip_symbols = STRIP_SOME; | |
573 | } | |
2fa0b342 DHW |
574 | if (strip_symbols != STRIP_ALL) { |
575 | /* We know the maximum size of the symbol table - | |
576 | it's the size of all the global symbols ever seen + | |
577 | the size of all the symbols from all the files + | |
578 | the number of files (for the per file symbols) | |
579 | +1 (for the null at the end) | |
580 | */ | |
581 | extern unsigned int total_files_seen; | |
582 | extern unsigned int total_symbols_seen; | |
583 | ||
584 | asymbol ** symbol_table = (asymbol **) | |
19b03b7a | 585 | ldmalloc ((bfd_size_type)(global_symbol_count + |
2fa0b342 DHW |
586 | total_files_seen + |
587 | total_symbols_seen + 1) * sizeof (asymbol *)); | |
588 | asymbol ** tablep = write_file_locals(symbol_table); | |
589 | ||
590 | tablep = write_file_globals(tablep); | |
f3b36ecb | 591 | tablep = process_keepsyms (symbol_table, tablep - symbol_table); |
2fa0b342 DHW |
592 | |
593 | *tablep = (asymbol *)NULL; | |
594 | bfd_set_symtab(output_bfd, symbol_table, (unsigned)( tablep - symbol_table)); | |
595 | } | |
596 | } | |
c660714f SC |
597 | |
598 | /* | |
599 | return true if the supplied symbol name is not in the | |
600 | linker symbol table | |
601 | */ | |
602 | boolean | |
99fe4553 SC |
603 | DEFUN(ldsym_undefined,(sym), |
604 | CONST char *sym) | |
c660714f SC |
605 | { |
606 | ldsym_type *from_table = ldsym_get_soft(sym); | |
bfbdc80f SC |
607 | if (from_table != (ldsym_type *)NULL) |
608 | { | |
c660714f SC |
609 | if (from_table->sdefs_chain != (asymbol **)NULL) return false; |
610 | } | |
611 | return true; | |
612 | } | |
bfbdc80f SC |
613 | |
614 | void | |
615 | DEFUN_VOID(ldsym_init) | |
616 | { | |
617 | obstack_begin(&global_sym_obstack, 20000); | |
618 | } |