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Commit | Line | Data |
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aa32d841 JL |
1 | /* Scan linker error messages for missing template instantiations and provide |
2 | them. | |
3 | ||
d6edb99e | 4 | Copyright (C) 1995, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
aa32d841 JL |
5 | Contributed by Jason Merrill (jason@cygnus.com). |
6 | ||
1322177d | 7 | This file is part of GCC. |
aa32d841 | 8 | |
1322177d LB |
9 | GCC is free software; you can redistribute it and/or modify it under |
10 | the terms of the GNU General Public License as published by the Free | |
11 | Software Foundation; either version 2, or (at your option) any later | |
12 | version. | |
aa32d841 | 13 | |
1322177d LB |
14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | for more details. | |
aa32d841 JL |
18 | |
19 | You should have received a copy of the GNU General Public License | |
1322177d LB |
20 | along with GCC; see the file COPYING. If not, write to the Free |
21 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
22 | 02111-1307, USA. */ | |
aa32d841 | 23 | |
aa32d841 | 24 | #include "config.h" |
670ee920 | 25 | #include "system.h" |
993c790e | 26 | #include "intl.h" |
e2500fed GK |
27 | #include "obstack.h" |
28 | #include "hashtab.h" | |
aa32d841 | 29 | #include "demangle.h" |
2edfd4ee | 30 | #include "collect2.h" |
aa32d841 JL |
31 | |
32 | #define MAX_ITERATIONS 17 | |
33 | ||
aa32d841 JL |
34 | /* Defined in the automatically-generated underscore.c. */ |
35 | extern int prepends_underscore; | |
36 | ||
37 | static int tlink_verbose; | |
38 | \f | |
e2500fed | 39 | /* Hash table boilerplate for working with htab_t. We have hash tables |
eb686064 | 40 | for symbol names, file names, and demangled symbols. */ |
aa32d841 JL |
41 | |
42 | typedef struct symbol_hash_entry | |
43 | { | |
e2500fed | 44 | const char *key; |
aa32d841 JL |
45 | struct file_hash_entry *file; |
46 | int chosen; | |
47 | int tweaking; | |
48 | int tweaked; | |
49 | } symbol; | |
50 | ||
51 | typedef struct file_hash_entry | |
52 | { | |
e2500fed | 53 | const char *key; |
aa32d841 JL |
54 | const char *args; |
55 | const char *dir; | |
56 | const char *main; | |
57 | int tweaking; | |
58 | } file; | |
59 | ||
60 | typedef struct demangled_hash_entry | |
61 | { | |
e2500fed | 62 | const char *key; |
aa32d841 JL |
63 | const char *mangled; |
64 | } demangled; | |
65 | ||
e2500fed GK |
66 | /* Hash and comparison functions for these hash tables. */ |
67 | ||
68 | static int hash_string_eq PARAMS ((const void *, const void *)); | |
69 | static hashval_t hash_string_hash PARAMS ((const void *)); | |
70 | ||
71 | static int | |
72 | hash_string_eq (s1_p, s2_p) | |
73 | const void *s1_p; | |
74 | const void *s2_p; | |
75 | { | |
17fa74a2 KH |
76 | const char *const *s1 = (const char *const *) s1_p; |
77 | const char *s2 = (const char *) s2_p; | |
e2500fed GK |
78 | return strcmp (*s1, s2) == 0; |
79 | } | |
80 | ||
81 | static hashval_t | |
82 | hash_string_hash (s_p) | |
83 | const void *s_p; | |
84 | { | |
17fa74a2 | 85 | const char *const *s = (const char *const *) s_p; |
e2500fed GK |
86 | return (*htab_hash_string) (*s); |
87 | } | |
88 | ||
89 | static htab_t symbol_table; | |
aa32d841 | 90 | |
54ea1de9 | 91 | static struct symbol_hash_entry * symbol_hash_lookup PARAMS ((const char *, |
37a58036 | 92 | int)); |
54ea1de9 | 93 | static struct file_hash_entry * file_hash_lookup PARAMS ((const char *)); |
54ea1de9 | 94 | static struct demangled_hash_entry * |
37a58036 | 95 | demangled_hash_lookup PARAMS ((const char *, int)); |
54ea1de9 KG |
96 | static void symbol_push PARAMS ((symbol *)); |
97 | static symbol * symbol_pop PARAMS ((void)); | |
98 | static void file_push PARAMS ((file *)); | |
99 | static file * file_pop PARAMS ((void)); | |
100 | static void tlink_init PARAMS ((void)); | |
d4058195 KG |
101 | static int tlink_execute PARAMS ((const char *, char **, const char *)); |
102 | static char * frob_extension PARAMS ((const char *, const char *)); | |
54ea1de9 KG |
103 | static char * obstack_fgets PARAMS ((FILE *, struct obstack *)); |
104 | static char * tfgets PARAMS ((FILE *)); | |
105 | static char * pfgets PARAMS ((FILE *)); | |
106 | static void freadsym PARAMS ((FILE *, file *, int)); | |
107 | static void read_repo_file PARAMS ((file *)); | |
108 | static void maybe_tweak PARAMS ((char *, file *)); | |
109 | static int recompile_files PARAMS ((void)); | |
110 | static int read_repo_files PARAMS ((char **)); | |
111 | static void demangle_new_symbols PARAMS ((void)); | |
112 | static int scan_linker_output PARAMS ((const char *)); | |
113 | ||
eb686064 JM |
114 | /* Look up an entry in the symbol hash table. */ |
115 | ||
aa32d841 JL |
116 | static struct symbol_hash_entry * |
117 | symbol_hash_lookup (string, create) | |
118 | const char *string; | |
37a58036 | 119 | int create; |
aa32d841 | 120 | { |
e2500fed GK |
121 | PTR *e; |
122 | e = htab_find_slot_with_hash (symbol_table, string, | |
17fa74a2 | 123 | (*htab_hash_string) (string), |
e2500fed GK |
124 | create ? INSERT : NO_INSERT); |
125 | if (e == NULL) | |
126 | return NULL; | |
127 | if (*e == NULL) | |
aa32d841 | 128 | { |
e2500fed GK |
129 | struct symbol_hash_entry *v; |
130 | *e = v = xcalloc (1, sizeof (*v)); | |
131 | v->key = xstrdup (string); | |
aa32d841 | 132 | } |
e2500fed | 133 | return *e; |
aa32d841 JL |
134 | } |
135 | ||
e2500fed GK |
136 | static htab_t file_table; |
137 | ||
eb686064 JM |
138 | /* Look up an entry in the file hash table. */ |
139 | ||
aa32d841 JL |
140 | static struct file_hash_entry * |
141 | file_hash_lookup (string) | |
142 | const char *string; | |
143 | { | |
e2500fed GK |
144 | PTR *e; |
145 | e = htab_find_slot_with_hash (file_table, string, | |
17fa74a2 | 146 | (*htab_hash_string) (string), |
e2500fed GK |
147 | INSERT); |
148 | if (*e == NULL) | |
aa32d841 | 149 | { |
e2500fed GK |
150 | struct file_hash_entry *v; |
151 | *e = v = xcalloc (1, sizeof (*v)); | |
152 | v->key = xstrdup (string); | |
aa32d841 | 153 | } |
e2500fed | 154 | return *e; |
aa32d841 JL |
155 | } |
156 | ||
e2500fed GK |
157 | static htab_t demangled_table; |
158 | ||
eb686064 JM |
159 | /* Look up an entry in the demangled name hash table. */ |
160 | ||
aa32d841 JL |
161 | static struct demangled_hash_entry * |
162 | demangled_hash_lookup (string, create) | |
163 | const char *string; | |
37a58036 | 164 | int create; |
aa32d841 | 165 | { |
e2500fed GK |
166 | PTR *e; |
167 | e = htab_find_slot_with_hash (demangled_table, string, | |
17fa74a2 | 168 | (*htab_hash_string) (string), |
e2500fed GK |
169 | create ? INSERT : NO_INSERT); |
170 | if (e == NULL) | |
171 | return NULL; | |
172 | if (*e == NULL) | |
173 | { | |
174 | struct demangled_hash_entry *v; | |
175 | *e = v = xcalloc (1, sizeof (*v)); | |
176 | v->key = xstrdup (string); | |
177 | } | |
178 | return *e; | |
aa32d841 JL |
179 | } |
180 | \f | |
181 | /* Stack code. */ | |
182 | ||
183 | struct symbol_stack_entry | |
184 | { | |
185 | symbol *value; | |
186 | struct symbol_stack_entry *next; | |
187 | }; | |
188 | struct obstack symbol_stack_obstack; | |
189 | struct symbol_stack_entry *symbol_stack; | |
190 | ||
191 | struct file_stack_entry | |
192 | { | |
193 | file *value; | |
194 | struct file_stack_entry *next; | |
195 | }; | |
196 | struct obstack file_stack_obstack; | |
197 | struct file_stack_entry *file_stack; | |
198 | ||
199 | static void | |
200 | symbol_push (p) | |
201 | symbol *p; | |
202 | { | |
203 | struct symbol_stack_entry *ep = (struct symbol_stack_entry *) obstack_alloc | |
204 | (&symbol_stack_obstack, sizeof (struct symbol_stack_entry)); | |
205 | ep->value = p; | |
206 | ep->next = symbol_stack; | |
207 | symbol_stack = ep; | |
208 | } | |
209 | ||
210 | static symbol * | |
211 | symbol_pop () | |
212 | { | |
213 | struct symbol_stack_entry *ep = symbol_stack; | |
214 | symbol *p; | |
215 | if (ep == NULL) | |
216 | return NULL; | |
217 | p = ep->value; | |
218 | symbol_stack = ep->next; | |
219 | obstack_free (&symbol_stack_obstack, ep); | |
220 | return p; | |
221 | } | |
222 | ||
223 | static void | |
224 | file_push (p) | |
225 | file *p; | |
226 | { | |
227 | struct file_stack_entry *ep; | |
228 | ||
229 | if (p->tweaking) | |
230 | return; | |
231 | ||
232 | ep = (struct file_stack_entry *) obstack_alloc | |
233 | (&file_stack_obstack, sizeof (struct file_stack_entry)); | |
234 | ep->value = p; | |
235 | ep->next = file_stack; | |
236 | file_stack = ep; | |
237 | p->tweaking = 1; | |
238 | } | |
239 | ||
240 | static file * | |
241 | file_pop () | |
242 | { | |
243 | struct file_stack_entry *ep = file_stack; | |
244 | file *p; | |
245 | if (ep == NULL) | |
246 | return NULL; | |
247 | p = ep->value; | |
248 | file_stack = ep->next; | |
249 | obstack_free (&file_stack_obstack, ep); | |
250 | p->tweaking = 0; | |
251 | return p; | |
252 | } | |
253 | \f | |
254 | /* Other machinery. */ | |
255 | ||
eb686064 JM |
256 | /* Initialize the tlink machinery. Called from do_tlink. */ |
257 | ||
aa32d841 JL |
258 | static void |
259 | tlink_init () | |
260 | { | |
d4058195 | 261 | const char *p; |
aa32d841 | 262 | |
e2500fed GK |
263 | symbol_table = htab_create (500, hash_string_hash, hash_string_eq, |
264 | NULL); | |
265 | file_table = htab_create (500, hash_string_hash, hash_string_eq, | |
266 | NULL); | |
267 | demangled_table = htab_create (500, hash_string_hash, hash_string_eq, | |
268 | NULL); | |
269 | ||
aa32d841 JL |
270 | obstack_begin (&symbol_stack_obstack, 0); |
271 | obstack_begin (&file_stack_obstack, 0); | |
272 | ||
273 | p = getenv ("TLINK_VERBOSE"); | |
274 | if (p) | |
275 | tlink_verbose = atoi (p); | |
276 | else | |
277 | { | |
278 | tlink_verbose = 1; | |
279 | if (vflag) | |
280 | tlink_verbose = 2; | |
281 | if (debug) | |
282 | tlink_verbose = 3; | |
283 | } | |
284 | } | |
285 | ||
286 | static int | |
287 | tlink_execute (prog, argv, redir) | |
d4058195 | 288 | const char *prog; |
aa32d841 | 289 | char **argv; |
d4058195 | 290 | const char *redir; |
aa32d841 JL |
291 | { |
292 | collect_execute (prog, argv, redir); | |
293 | return collect_wait (prog); | |
d92b4486 | 294 | } |
aa32d841 JL |
295 | |
296 | static char * | |
297 | frob_extension (s, ext) | |
d4058195 | 298 | const char *s; |
54ea1de9 | 299 | const char *ext; |
aa32d841 | 300 | { |
9473c522 | 301 | const char *p = strrchr (s, '/'); |
aa32d841 JL |
302 | if (! p) |
303 | p = s; | |
9473c522 | 304 | p = strrchr (p, '.'); |
aa32d841 JL |
305 | if (! p) |
306 | p = s + strlen (s); | |
307 | ||
308 | obstack_grow (&temporary_obstack, s, p - s); | |
309 | return obstack_copy0 (&temporary_obstack, ext, strlen (ext)); | |
310 | } | |
311 | ||
312 | static char * | |
313 | obstack_fgets (stream, ob) | |
314 | FILE *stream; | |
315 | struct obstack *ob; | |
316 | { | |
317 | int c; | |
318 | while ((c = getc (stream)) != EOF && c != '\n') | |
319 | obstack_1grow (ob, c); | |
320 | if (obstack_object_size (ob) == 0) | |
321 | return NULL; | |
322 | obstack_1grow (ob, '\0'); | |
323 | return obstack_finish (ob); | |
324 | } | |
325 | ||
326 | static char * | |
327 | tfgets (stream) | |
328 | FILE *stream; | |
329 | { | |
330 | return obstack_fgets (stream, &temporary_obstack); | |
331 | } | |
332 | ||
333 | static char * | |
334 | pfgets (stream) | |
335 | FILE *stream; | |
336 | { | |
6d9f628e | 337 | return xstrdup (tfgets (stream)); |
aa32d841 JL |
338 | } |
339 | \f | |
340 | /* Real tlink code. */ | |
341 | ||
eb686064 JM |
342 | /* Subroutine of read_repo_file. We are reading the repo file for file F, |
343 | which is coming in on STREAM, and the symbol that comes next in STREAM | |
344 | is offerred, chosen or provided if CHOSEN is 0, 1 or 2, respectively. | |
345 | ||
346 | XXX "provided" is unimplemented, both here and in the compiler. */ | |
347 | ||
aa32d841 JL |
348 | static void |
349 | freadsym (stream, f, chosen) | |
350 | FILE *stream; | |
351 | file *f; | |
352 | int chosen; | |
353 | { | |
354 | symbol *sym; | |
355 | ||
356 | { | |
d4058195 | 357 | const char *name = tfgets (stream); |
aa32d841 JL |
358 | sym = symbol_hash_lookup (name, true); |
359 | } | |
360 | ||
361 | if (sym->file == NULL) | |
362 | { | |
eb686064 JM |
363 | /* We didn't have this symbol already, so we choose this file. */ |
364 | ||
aa32d841 JL |
365 | symbol_push (sym); |
366 | sym->file = f; | |
367 | sym->chosen = chosen; | |
368 | } | |
369 | else if (chosen) | |
370 | { | |
eb686064 JM |
371 | /* We want this file; cast aside any pretender. */ |
372 | ||
aa32d841 JL |
373 | if (sym->chosen && sym->file != f) |
374 | { | |
375 | if (sym->chosen == 1) | |
376 | file_push (sym->file); | |
377 | else | |
378 | { | |
379 | file_push (f); | |
380 | f = sym->file; | |
381 | chosen = sym->chosen; | |
382 | } | |
383 | } | |
384 | sym->file = f; | |
385 | sym->chosen = chosen; | |
386 | } | |
387 | } | |
388 | ||
eb686064 JM |
389 | /* Read in the repo file denoted by F, and record all its information. */ |
390 | ||
aa32d841 JL |
391 | static void |
392 | read_repo_file (f) | |
393 | file *f; | |
394 | { | |
395 | char c; | |
e2500fed | 396 | FILE *stream = fopen (f->key, "r"); |
aa32d841 JL |
397 | |
398 | if (tlink_verbose >= 2) | |
e2500fed | 399 | fprintf (stderr, _("collect: reading %s\n"), f->key); |
aa32d841 JL |
400 | |
401 | while (fscanf (stream, "%c ", &c) == 1) | |
402 | { | |
403 | switch (c) | |
404 | { | |
405 | case 'A': | |
406 | f->args = pfgets (stream); | |
407 | break; | |
408 | case 'D': | |
409 | f->dir = pfgets (stream); | |
410 | break; | |
411 | case 'M': | |
412 | f->main = pfgets (stream); | |
413 | break; | |
414 | case 'P': | |
415 | freadsym (stream, f, 2); | |
416 | break; | |
417 | case 'C': | |
418 | freadsym (stream, f, 1); | |
419 | break; | |
420 | case 'O': | |
421 | freadsym (stream, f, 0); | |
422 | break; | |
423 | } | |
424 | obstack_free (&temporary_obstack, temporary_firstobj); | |
425 | } | |
426 | fclose (stream); | |
427 | if (f->args == NULL) | |
428 | f->args = getenv ("COLLECT_GCC_OPTIONS"); | |
429 | if (f->dir == NULL) | |
430 | f->dir = "."; | |
431 | } | |
432 | ||
eb686064 JM |
433 | /* We might want to modify LINE, which is a symbol line from file F. We do |
434 | this if either we saw an error message referring to the symbol in | |
435 | question, or we have already allocated the symbol to another file and | |
436 | this one wants to emit it as well. */ | |
437 | ||
aa32d841 JL |
438 | static void |
439 | maybe_tweak (line, f) | |
440 | char *line; | |
441 | file *f; | |
442 | { | |
443 | symbol *sym = symbol_hash_lookup (line + 2, false); | |
444 | ||
445 | if ((sym->file == f && sym->tweaking) | |
446 | || (sym->file != f && line[0] == 'C')) | |
447 | { | |
448 | sym->tweaking = 0; | |
449 | sym->tweaked = 1; | |
450 | ||
451 | if (line[0] == 'O') | |
452 | line[0] = 'C'; | |
453 | else | |
454 | line[0] = 'O'; | |
455 | } | |
456 | } | |
457 | ||
eb686064 JM |
458 | /* Update the repo files for each of the object files we have adjusted and |
459 | recompile. | |
460 | ||
461 | XXX Should this use collect_execute instead of system? */ | |
462 | ||
aa32d841 JL |
463 | static int |
464 | recompile_files () | |
465 | { | |
466 | file *f; | |
467 | ||
137bb46a KG |
468 | putenv (xstrdup ("COMPILER_PATH")); |
469 | putenv (xstrdup ("LIBRARY_PATH")); | |
d92b4486 | 470 | |
aa32d841 JL |
471 | while ((f = file_pop ()) != NULL) |
472 | { | |
473 | char *line, *command; | |
e2500fed GK |
474 | FILE *stream = fopen (f->key, "r"); |
475 | const char *const outname = frob_extension (f->key, ".rnw"); | |
aa32d841 JL |
476 | FILE *output = fopen (outname, "w"); |
477 | ||
478 | while ((line = tfgets (stream)) != NULL) | |
479 | { | |
480 | switch (line[0]) | |
481 | { | |
482 | case 'C': | |
483 | case 'O': | |
484 | maybe_tweak (line, f); | |
485 | } | |
486 | fprintf (output, "%s\n", line); | |
487 | } | |
488 | fclose (stream); | |
489 | fclose (output); | |
e2500fed | 490 | rename (outname, f->key); |
aa32d841 JL |
491 | |
492 | obstack_grow (&temporary_obstack, "cd ", 3); | |
493 | obstack_grow (&temporary_obstack, f->dir, strlen (f->dir)); | |
494 | obstack_grow (&temporary_obstack, "; ", 2); | |
495 | obstack_grow (&temporary_obstack, c_file_name, strlen (c_file_name)); | |
496 | obstack_1grow (&temporary_obstack, ' '); | |
497 | obstack_grow (&temporary_obstack, f->args, strlen (f->args)); | |
498 | obstack_1grow (&temporary_obstack, ' '); | |
499 | command = obstack_copy0 (&temporary_obstack, f->main, strlen (f->main)); | |
500 | ||
501 | if (tlink_verbose) | |
5e4adfba | 502 | fprintf (stderr, _("collect: recompiling %s\n"), f->main); |
aa32d841 JL |
503 | if (tlink_verbose >= 3) |
504 | fprintf (stderr, "%s\n", command); | |
505 | ||
506 | if (system (command) != 0) | |
507 | return 0; | |
508 | ||
509 | read_repo_file (f); | |
510 | ||
511 | obstack_free (&temporary_obstack, temporary_firstobj); | |
512 | } | |
513 | return 1; | |
514 | } | |
515 | ||
eb686064 JM |
516 | /* The first phase of processing: determine which object files have |
517 | .rpo files associated with them, and read in the information. */ | |
518 | ||
aa32d841 JL |
519 | static int |
520 | read_repo_files (object_lst) | |
521 | char **object_lst; | |
522 | { | |
523 | char **object = object_lst; | |
524 | ||
525 | for (; *object; object++) | |
526 | { | |
2c561874 | 527 | const char *p; |
aa32d841 JL |
528 | file *f; |
529 | ||
2c561874 JM |
530 | /* Don't bother trying for ld flags. */ |
531 | if (*object[0] == '-') | |
532 | continue; | |
533 | ||
534 | p = frob_extension (*object, ".rpo"); | |
535 | ||
aa32d841 JL |
536 | if (! file_exists (p)) |
537 | continue; | |
538 | ||
539 | f = file_hash_lookup (p); | |
540 | ||
541 | read_repo_file (f); | |
542 | } | |
543 | ||
544 | if (file_stack != NULL && ! recompile_files ()) | |
545 | return 0; | |
546 | ||
547 | return (symbol_stack != NULL); | |
548 | } | |
549 | ||
eb686064 JM |
550 | /* Add the demangled forms of any new symbols to the hash table. */ |
551 | ||
aa32d841 JL |
552 | static void |
553 | demangle_new_symbols () | |
554 | { | |
555 | symbol *sym; | |
556 | ||
557 | while ((sym = symbol_pop ()) != NULL) | |
558 | { | |
559 | demangled *dem; | |
e2500fed | 560 | const char *p = cplus_demangle (sym->key, DMGL_PARAMS | DMGL_ANSI); |
aa32d841 JL |
561 | |
562 | if (! p) | |
563 | continue; | |
564 | ||
565 | dem = demangled_hash_lookup (p, true); | |
e2500fed | 566 | dem->mangled = sym->key; |
aa32d841 JL |
567 | } |
568 | } | |
569 | ||
eb686064 JM |
570 | /* Step through the output of the linker, in the file named FNAME, and |
571 | adjust the settings for each symbol encountered. */ | |
572 | ||
aa32d841 JL |
573 | static int |
574 | scan_linker_output (fname) | |
54ea1de9 | 575 | const char *fname; |
aa32d841 JL |
576 | { |
577 | FILE *stream = fopen (fname, "r"); | |
578 | char *line; | |
579 | ||
580 | while ((line = tfgets (stream)) != NULL) | |
581 | { | |
582 | char *p = line, *q; | |
583 | symbol *sym; | |
584 | int end; | |
d92b4486 | 585 | |
17fa74a2 | 586 | while (*p && ISSPACE ((unsigned char) *p)) |
aa32d841 JL |
587 | ++p; |
588 | ||
589 | if (! *p) | |
590 | continue; | |
591 | ||
17fa74a2 | 592 | for (q = p; *q && ! ISSPACE ((unsigned char) *q); ++q) |
aa32d841 JL |
593 | ; |
594 | ||
595 | /* Try the first word on the line. */ | |
596 | if (*p == '.') | |
597 | ++p; | |
3fd9d606 ZW |
598 | if (!strncmp (p, USER_LABEL_PREFIX, strlen (USER_LABEL_PREFIX))) |
599 | p += strlen (USER_LABEL_PREFIX); | |
aa32d841 JL |
600 | |
601 | end = ! *q; | |
602 | *q = 0; | |
603 | sym = symbol_hash_lookup (p, false); | |
604 | ||
644c7c4f GK |
605 | /* Some SVR4 linkers produce messages like |
606 | ld: 0711-317 ERROR: Undefined symbol: .g__t3foo1Zi | |
607 | */ | |
17fa74a2 | 608 | if (! sym && ! end && strstr (q + 1, "Undefined symbol: ")) |
644c7c4f | 609 | { |
17fa74a2 | 610 | char *p = strrchr (q + 1, ' '); |
644c7c4f GK |
611 | p++; |
612 | if (*p == '.') | |
613 | p++; | |
3fd9d606 ZW |
614 | if (!strncmp (p, USER_LABEL_PREFIX, strlen (USER_LABEL_PREFIX))) |
615 | p += strlen (USER_LABEL_PREFIX); | |
644c7c4f GK |
616 | sym = symbol_hash_lookup (p, false); |
617 | } | |
618 | ||
aa32d841 | 619 | if (! sym && ! end) |
b4558b57 | 620 | /* Try a mangled name in quotes. */ |
aa32d841 | 621 | { |
17fa74a2 | 622 | const char *oldq = q + 1; |
aa32d841 | 623 | demangled *dem = 0; |
aa32d841 JL |
624 | q = 0; |
625 | ||
b4558b57 | 626 | /* First try `GNU style'. */ |
9473c522 | 627 | p = strchr (oldq, '`'); |
b4558b57 | 628 | if (p) |
9473c522 | 629 | p++, q = strchr (p, '\''); |
b4558b57 | 630 | /* Then try "double quotes". */ |
9473c522 JM |
631 | else if (p = strchr (oldq, '"'), p) |
632 | p++, q = strchr (p, '"'); | |
aa32d841 | 633 | |
6ff7fb95 JM |
634 | /* Don't let the strstr's below see the demangled name; we |
635 | might get spurious matches. */ | |
636 | if (p) | |
637 | p[-1] = '\0'; | |
638 | ||
57be4e89 JM |
639 | /* We need to check for certain error keywords here, or we would |
640 | mistakenly use GNU ld's "In function `foo':" message. */ | |
641 | if (q && (strstr (oldq, "ndefined") | |
3f94eee6 | 642 | || strstr (oldq, "nresolved") |
eb20f668 | 643 | || strstr (oldq, "nsatisfied") |
57be4e89 | 644 | || strstr (oldq, "ultiple"))) |
aa32d841 | 645 | { |
b4558b57 JM |
646 | *q = 0; |
647 | dem = demangled_hash_lookup (p, false); | |
648 | if (dem) | |
649 | sym = symbol_hash_lookup (dem->mangled, false); | |
650 | else | |
d92b4486 | 651 | { |
3fd9d606 ZW |
652 | if (!strncmp (p, USER_LABEL_PREFIX, |
653 | strlen (USER_LABEL_PREFIX))) | |
654 | p += strlen (USER_LABEL_PREFIX); | |
9c5b50b3 JM |
655 | sym = symbol_hash_lookup (p, false); |
656 | } | |
aa32d841 | 657 | } |
aa32d841 JL |
658 | } |
659 | ||
660 | if (sym && sym->tweaked) | |
7b6ffd11 KI |
661 | { |
662 | fclose (stream); | |
663 | return 0; | |
664 | } | |
aa32d841 JL |
665 | if (sym && !sym->tweaking) |
666 | { | |
667 | if (tlink_verbose >= 2) | |
5e4adfba | 668 | fprintf (stderr, _("collect: tweaking %s in %s\n"), |
e2500fed | 669 | sym->key, sym->file->key); |
aa32d841 JL |
670 | sym->tweaking = 1; |
671 | file_push (sym->file); | |
672 | } | |
d92b4486 | 673 | |
aa32d841 JL |
674 | obstack_free (&temporary_obstack, temporary_firstobj); |
675 | } | |
676 | ||
7b6ffd11 | 677 | fclose (stream); |
aa32d841 JL |
678 | return (file_stack != NULL); |
679 | } | |
680 | ||
eb686064 JM |
681 | /* Entry point for tlink. Called from main in collect2.c. |
682 | ||
683 | Iteratively try to provide definitions for all the unresolved symbols | |
684 | mentioned in the linker error messages. | |
685 | ||
686 | LD_ARGV is an array of arguments for the linker. | |
687 | OBJECT_LST is an array of object files that we may be able to recompile | |
688 | to provide missing definitions. Currently ignored. */ | |
689 | ||
aa32d841 JL |
690 | void |
691 | do_tlink (ld_argv, object_lst) | |
d4058195 | 692 | char **ld_argv, **object_lst ATTRIBUTE_UNUSED; |
aa32d841 JL |
693 | { |
694 | int exit = tlink_execute ("ld", ld_argv, ldout); | |
695 | ||
696 | tlink_init (); | |
697 | ||
698 | if (exit) | |
699 | { | |
700 | int i = 0; | |
701 | ||
702 | /* Until collect does a better job of figuring out which are object | |
703 | files, assume that everything on the command line could be. */ | |
704 | if (read_repo_files (ld_argv)) | |
705 | while (exit && i++ < MAX_ITERATIONS) | |
706 | { | |
707 | if (tlink_verbose >= 3) | |
708 | dump_file (ldout); | |
709 | demangle_new_symbols (); | |
710 | if (! scan_linker_output (ldout)) | |
711 | break; | |
712 | if (! recompile_files ()) | |
713 | break; | |
714 | if (tlink_verbose) | |
5e4adfba | 715 | fprintf (stderr, _("collect: relinking\n")); |
aa32d841 JL |
716 | exit = tlink_execute ("ld", ld_argv, ldout); |
717 | } | |
718 | } | |
719 | ||
720 | dump_file (ldout); | |
721 | unlink (ldout); | |
722 | if (exit) | |
723 | { | |
724 | error ("ld returned %d exit status", exit); | |
725 | collect_exit (exit); | |
726 | } | |
727 | } |