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252b5132 | 1 | /* stabs.c -- Parse stabs debugging information |
c602a165 | 2 | Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Ian Lance Taylor <ian@cygnus.com>. |
4 | ||
5 | This file is part of GNU Binutils. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
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 | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
22 | /* This file contains code which parses stabs debugging information. | |
23 | The organization of this code is based on the gdb stabs reading | |
24 | code. The job it does is somewhat different, because it is not | |
25 | trying to identify the correct address for anything. */ | |
26 | ||
27 | #include <stdio.h> | |
28 | #include <ctype.h> | |
29 | ||
30 | #include "bfd.h" | |
31 | #include "bucomm.h" | |
32 | #include "libiberty.h" | |
33 | #include "demangle.h" | |
34 | #include "debug.h" | |
35 | #include "budbg.h" | |
36 | ||
37 | /* Meaningless definition needs by aout64.h. FIXME. */ | |
38 | #define BYTES_IN_WORD 4 | |
39 | ||
40 | #include "aout/aout64.h" | |
41 | #include "aout/stab_gnu.h" | |
42 | ||
43 | #ifndef DIR_SEPARATOR | |
44 | #ifdef _WIN32 | |
45 | #define DIR_SEPARATOR '\\' | |
46 | #else | |
47 | #define DIR_SEPARATOR '/' | |
48 | #endif | |
49 | #endif | |
50 | ||
51 | /* The number of predefined XCOFF types. */ | |
52 | ||
53 | #define XCOFF_TYPE_COUNT 34 | |
54 | ||
55 | /* This structure is used as a handle so that the stab parsing doesn't | |
56 | need to use any static variables. */ | |
57 | ||
58 | struct stab_handle | |
59 | { | |
60 | /* The BFD. */ | |
61 | bfd *abfd; | |
62 | /* True if this is stabs in sections. */ | |
63 | boolean sections; | |
64 | /* The symbol table. */ | |
65 | asymbol **syms; | |
66 | /* The number of symbols. */ | |
67 | long symcount; | |
68 | /* The accumulated file name string. */ | |
69 | char *so_string; | |
70 | /* The value of the last N_SO symbol. */ | |
71 | bfd_vma so_value; | |
72 | /* The value of the start of the file, so that we can handle file | |
73 | relative N_LBRAC and N_RBRAC symbols. */ | |
74 | bfd_vma file_start_offset; | |
75 | /* The offset of the start of the function, so that we can handle | |
76 | function relative N_LBRAC and N_RBRAC symbols. */ | |
77 | bfd_vma function_start_offset; | |
78 | /* The version number of gcc which compiled the current compilation | |
79 | unit, 0 if not compiled by gcc. */ | |
80 | int gcc_compiled; | |
81 | /* Whether an N_OPT symbol was seen that was not generated by gcc, | |
82 | so that we can detect the SunPRO compiler. */ | |
83 | boolean n_opt_found; | |
84 | /* The main file name. */ | |
85 | char *main_filename; | |
86 | /* A stack of unfinished N_BINCL files. */ | |
87 | struct bincl_file *bincl_stack; | |
88 | /* A list of finished N_BINCL files. */ | |
89 | struct bincl_file *bincl_list; | |
90 | /* Whether we are inside a function or not. */ | |
91 | boolean within_function; | |
92 | /* The address of the end of the function, used if we have seen an | |
93 | N_FUN symbol while in a function. This is -1 if we have not seen | |
94 | an N_FUN (the normal case). */ | |
95 | bfd_vma function_end; | |
96 | /* The depth of block nesting. */ | |
97 | int block_depth; | |
98 | /* List of pending variable definitions. */ | |
99 | struct stab_pending_var *pending; | |
100 | /* Number of files for which we have types. */ | |
101 | unsigned int files; | |
102 | /* Lists of types per file. */ | |
103 | struct stab_types **file_types; | |
104 | /* Predefined XCOFF types. */ | |
105 | debug_type xcoff_types[XCOFF_TYPE_COUNT]; | |
106 | /* Undefined tags. */ | |
107 | struct stab_tag *tags; | |
108 | /* Set by parse_stab_type if it sees a structure defined as a cross | |
109 | reference to itself. Reset by parse_stab_type otherwise. */ | |
110 | boolean self_crossref; | |
111 | }; | |
112 | ||
113 | /* A list of these structures is used to hold pending variable | |
114 | definitions seen before the N_LBRAC of a block. */ | |
115 | ||
116 | struct stab_pending_var | |
117 | { | |
118 | /* Next pending variable definition. */ | |
119 | struct stab_pending_var *next; | |
120 | /* Name. */ | |
121 | const char *name; | |
122 | /* Type. */ | |
123 | debug_type type; | |
124 | /* Kind. */ | |
125 | enum debug_var_kind kind; | |
126 | /* Value. */ | |
127 | bfd_vma val; | |
128 | }; | |
129 | ||
130 | /* A list of these structures is used to hold the types for a single | |
131 | file. */ | |
132 | ||
133 | struct stab_types | |
134 | { | |
135 | /* Next set of slots for this file. */ | |
136 | struct stab_types *next; | |
137 | /* Types indexed by type number. */ | |
138 | #define STAB_TYPES_SLOTS (16) | |
139 | debug_type types[STAB_TYPES_SLOTS]; | |
140 | }; | |
141 | ||
142 | /* We keep a list of undefined tags that we encounter, so that we can | |
143 | fill them in if the tag is later defined. */ | |
144 | ||
145 | struct stab_tag | |
146 | { | |
147 | /* Next undefined tag. */ | |
148 | struct stab_tag *next; | |
149 | /* Tag name. */ | |
150 | const char *name; | |
151 | /* Type kind. */ | |
152 | enum debug_type_kind kind; | |
153 | /* Slot to hold real type when we discover it. If we don't, we fill | |
154 | in an undefined tag type. */ | |
155 | debug_type slot; | |
156 | /* Indirect type we have created to point at slot. */ | |
157 | debug_type type; | |
158 | }; | |
159 | ||
160 | static char *savestring PARAMS ((const char *, int)); | |
161 | static bfd_vma parse_number PARAMS ((const char **, boolean *)); | |
162 | static void bad_stab PARAMS ((const char *)); | |
163 | static void warn_stab PARAMS ((const char *, const char *)); | |
164 | static boolean parse_stab_string | |
165 | PARAMS ((PTR, struct stab_handle *, int, int, bfd_vma, const char *)); | |
166 | static debug_type parse_stab_type | |
167 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, | |
168 | debug_type **)); | |
169 | static boolean parse_stab_type_number | |
170 | PARAMS ((const char **, int *)); | |
171 | static debug_type parse_stab_range_type | |
172 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, | |
173 | const int *)); | |
174 | static debug_type parse_stab_sun_builtin_type PARAMS ((PTR, const char **)); | |
175 | static debug_type parse_stab_sun_floating_type | |
176 | PARAMS ((PTR, const char **)); | |
177 | static debug_type parse_stab_enum_type PARAMS ((PTR, const char **)); | |
178 | static debug_type parse_stab_struct_type | |
179 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, boolean, | |
180 | const int *)); | |
181 | static boolean parse_stab_baseclasses | |
182 | PARAMS ((PTR, struct stab_handle *, const char **, debug_baseclass **)); | |
183 | static boolean parse_stab_struct_fields | |
184 | PARAMS ((PTR, struct stab_handle *, const char **, debug_field **, | |
185 | boolean *)); | |
186 | static boolean parse_stab_cpp_abbrev | |
187 | PARAMS ((PTR, struct stab_handle *, const char **, debug_field *)); | |
188 | static boolean parse_stab_one_struct_field | |
189 | PARAMS ((PTR, struct stab_handle *, const char **, const char *, | |
190 | debug_field *, boolean *)); | |
191 | static boolean parse_stab_members | |
192 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, | |
193 | const int *, debug_method **)); | |
194 | static debug_type parse_stab_argtypes | |
195 | PARAMS ((PTR, struct stab_handle *, debug_type, const char *, const char *, | |
196 | debug_type, const char *, boolean, boolean, const char **)); | |
197 | static boolean parse_stab_tilde_field | |
198 | PARAMS ((PTR, struct stab_handle *, const char **, const int *, | |
199 | debug_type *, boolean *)); | |
200 | static debug_type parse_stab_array_type | |
201 | PARAMS ((PTR, struct stab_handle *, const char **, boolean)); | |
202 | static void push_bincl PARAMS ((struct stab_handle *, const char *, bfd_vma)); | |
203 | static const char *pop_bincl PARAMS ((struct stab_handle *)); | |
204 | static boolean find_excl | |
205 | PARAMS ((struct stab_handle *, const char *, bfd_vma)); | |
206 | static boolean stab_record_variable | |
207 | PARAMS ((PTR, struct stab_handle *, const char *, debug_type, | |
208 | enum debug_var_kind, bfd_vma)); | |
209 | static boolean stab_emit_pending_vars PARAMS ((PTR, struct stab_handle *)); | |
210 | static debug_type *stab_find_slot | |
211 | PARAMS ((struct stab_handle *, const int *)); | |
212 | static debug_type stab_find_type | |
213 | PARAMS ((PTR, struct stab_handle *, const int *)); | |
214 | static boolean stab_record_type | |
215 | PARAMS ((PTR, struct stab_handle *, const int *, debug_type)); | |
216 | static debug_type stab_xcoff_builtin_type | |
217 | PARAMS ((PTR, struct stab_handle *, int)); | |
218 | static debug_type stab_find_tagged_type | |
219 | PARAMS ((PTR, struct stab_handle *, const char *, int, | |
220 | enum debug_type_kind)); | |
221 | static debug_type *stab_demangle_argtypes | |
222 | PARAMS ((PTR, struct stab_handle *, const char *, boolean *)); | |
223 | ||
224 | /* Save a string in memory. */ | |
225 | ||
226 | static char * | |
227 | savestring (start, len) | |
228 | const char *start; | |
229 | int len; | |
230 | { | |
231 | char *ret; | |
232 | ||
233 | ret = (char *) xmalloc (len + 1); | |
234 | memcpy (ret, start, len); | |
235 | ret[len] = '\0'; | |
236 | return ret; | |
237 | } | |
238 | ||
239 | /* Read a number from a string. */ | |
240 | ||
241 | static bfd_vma | |
242 | parse_number (pp, poverflow) | |
243 | const char **pp; | |
244 | boolean *poverflow; | |
245 | { | |
246 | unsigned long ul; | |
247 | const char *orig; | |
248 | ||
249 | if (poverflow != NULL) | |
250 | *poverflow = false; | |
251 | ||
252 | orig = *pp; | |
253 | ||
254 | errno = 0; | |
255 | ul = strtoul (*pp, (char **) pp, 0); | |
256 | if (ul + 1 != 0 || errno == 0) | |
257 | { | |
258 | /* If bfd_vma is larger than unsigned long, and the number is | |
259 | meant to be negative, we have to make sure that we sign | |
260 | extend properly. */ | |
261 | if (*orig == '-') | |
262 | return (bfd_vma) (bfd_signed_vma) (long) ul; | |
263 | return (bfd_vma) ul; | |
264 | } | |
265 | ||
266 | /* Note that even though strtoul overflowed, it should have set *pp | |
267 | to the end of the number, which is where we want it. */ | |
268 | ||
269 | if (sizeof (bfd_vma) > sizeof (unsigned long)) | |
270 | { | |
271 | const char *p; | |
272 | boolean neg; | |
273 | int base; | |
274 | bfd_vma over, lastdig; | |
275 | boolean overflow; | |
276 | bfd_vma v; | |
277 | ||
278 | /* Our own version of strtoul, for a bfd_vma. */ | |
279 | ||
280 | p = orig; | |
281 | ||
282 | neg = false; | |
283 | if (*p == '+') | |
284 | ++p; | |
285 | else if (*p == '-') | |
286 | { | |
287 | neg = true; | |
288 | ++p; | |
289 | } | |
290 | ||
291 | base = 10; | |
292 | if (*p == '0') | |
293 | { | |
294 | if (p[1] == 'x' || p[1] == 'X') | |
295 | { | |
296 | base = 16; | |
297 | p += 2; | |
298 | } | |
299 | else | |
300 | { | |
301 | base = 8; | |
302 | ++p; | |
303 | } | |
304 | } | |
305 | ||
306 | over = ((bfd_vma) (bfd_signed_vma) -1) / (bfd_vma) base; | |
307 | lastdig = ((bfd_vma) (bfd_signed_vma) -1) % (bfd_vma) base; | |
308 | ||
309 | overflow = false; | |
310 | v = 0; | |
311 | while (1) | |
312 | { | |
313 | int d; | |
314 | ||
315 | d = *p++; | |
316 | if (isdigit ((unsigned char) d)) | |
317 | d -= '0'; | |
318 | else if (isupper ((unsigned char) d)) | |
319 | d -= 'A'; | |
320 | else if (islower ((unsigned char) d)) | |
321 | d -= 'a'; | |
322 | else | |
323 | break; | |
324 | ||
325 | if (d >= base) | |
326 | break; | |
327 | ||
328 | if (v > over || (v == over && (bfd_vma) d > lastdig)) | |
329 | { | |
330 | overflow = true; | |
331 | break; | |
332 | } | |
333 | } | |
334 | ||
335 | if (! overflow) | |
336 | { | |
337 | if (neg) | |
338 | v = - v; | |
339 | return v; | |
340 | } | |
341 | } | |
342 | ||
343 | /* If we get here, the number is too large to represent in a | |
344 | bfd_vma. */ | |
345 | ||
346 | if (poverflow != NULL) | |
347 | *poverflow = true; | |
348 | else | |
349 | warn_stab (orig, _("numeric overflow")); | |
350 | ||
351 | return 0; | |
352 | } | |
353 | ||
354 | /* Give an error for a bad stab string. */ | |
355 | ||
356 | static void | |
357 | bad_stab (p) | |
358 | const char *p; | |
359 | { | |
360 | fprintf (stderr, _("Bad stab: %s\n"), p); | |
361 | } | |
362 | ||
363 | /* Warn about something in a stab string. */ | |
364 | ||
365 | static void | |
366 | warn_stab (p, err) | |
367 | const char *p; | |
368 | const char *err; | |
369 | { | |
370 | fprintf (stderr, _("Warning: %s: %s\n"), err, p); | |
371 | } | |
372 | ||
373 | /* Create a handle to parse stabs symbols with. */ | |
374 | ||
375 | /*ARGSUSED*/ | |
376 | PTR | |
377 | start_stab (dhandle, abfd, sections, syms, symcount) | |
378 | PTR dhandle; | |
379 | bfd *abfd; | |
380 | boolean sections; | |
381 | asymbol **syms; | |
382 | long symcount; | |
383 | { | |
384 | struct stab_handle *ret; | |
385 | ||
386 | ret = (struct stab_handle *) xmalloc (sizeof *ret); | |
387 | memset (ret, 0, sizeof *ret); | |
388 | ret->abfd = abfd; | |
389 | ret->sections = sections; | |
390 | ret->syms = syms; | |
391 | ret->symcount = symcount; | |
392 | ret->files = 1; | |
393 | ret->file_types = (struct stab_types **) xmalloc (sizeof *ret->file_types); | |
394 | ret->file_types[0] = NULL; | |
395 | ret->function_end = (bfd_vma) -1; | |
396 | return (PTR) ret; | |
397 | } | |
398 | ||
399 | /* When we have processed all the stabs information, we need to go | |
400 | through and fill in all the undefined tags. */ | |
401 | ||
402 | boolean | |
403 | finish_stab (dhandle, handle) | |
404 | PTR dhandle; | |
405 | PTR handle; | |
406 | { | |
407 | struct stab_handle *info = (struct stab_handle *) handle; | |
408 | struct stab_tag *st; | |
409 | ||
410 | if (info->within_function) | |
411 | { | |
412 | if (! stab_emit_pending_vars (dhandle, info) | |
413 | || ! debug_end_function (dhandle, info->function_end)) | |
414 | return false; | |
415 | info->within_function = false; | |
416 | info->function_end = (bfd_vma) -1; | |
417 | } | |
418 | ||
419 | for (st = info->tags; st != NULL; st = st->next) | |
420 | { | |
421 | enum debug_type_kind kind; | |
422 | ||
423 | kind = st->kind; | |
424 | if (kind == DEBUG_KIND_ILLEGAL) | |
425 | kind = DEBUG_KIND_STRUCT; | |
426 | st->slot = debug_make_undefined_tagged_type (dhandle, st->name, kind); | |
427 | if (st->slot == DEBUG_TYPE_NULL) | |
428 | return false; | |
429 | } | |
430 | ||
431 | return true; | |
432 | } | |
433 | ||
434 | /* Handle a single stabs symbol. */ | |
435 | ||
436 | boolean | |
437 | parse_stab (dhandle, handle, type, desc, value, string) | |
438 | PTR dhandle; | |
439 | PTR handle; | |
440 | int type; | |
441 | int desc; | |
442 | bfd_vma value; | |
443 | const char *string; | |
444 | { | |
445 | struct stab_handle *info = (struct stab_handle *) handle; | |
446 | ||
447 | /* gcc will emit two N_SO strings per compilation unit, one for the | |
448 | directory name and one for the file name. We just collect N_SO | |
449 | strings as we see them, and start the new compilation unit when | |
450 | we see a non N_SO symbol. */ | |
451 | if (info->so_string != NULL | |
452 | && (type != N_SO || *string == '\0' || value != info->so_value)) | |
453 | { | |
454 | if (! debug_set_filename (dhandle, info->so_string)) | |
455 | return false; | |
456 | info->main_filename = info->so_string; | |
457 | ||
458 | info->gcc_compiled = 0; | |
459 | info->n_opt_found = false; | |
460 | ||
461 | /* Generally, for stabs in the symbol table, the N_LBRAC and | |
462 | N_RBRAC symbols are relative to the N_SO symbol value. */ | |
463 | if (! info->sections) | |
464 | info->file_start_offset = info->so_value; | |
465 | ||
466 | /* We need to reset the mapping from type numbers to types. We | |
467 | can't free the old mapping, because of the use of | |
468 | debug_make_indirect_type. */ | |
469 | info->files = 1; | |
470 | info->file_types = ((struct stab_types **) | |
471 | xmalloc (sizeof *info->file_types)); | |
472 | info->file_types[0] = NULL; | |
473 | ||
474 | info->so_string = NULL; | |
475 | ||
476 | /* Now process whatever type we just got. */ | |
477 | } | |
478 | ||
479 | switch (type) | |
480 | { | |
481 | case N_FN: | |
482 | case N_FN_SEQ: | |
483 | break; | |
484 | ||
485 | case N_LBRAC: | |
486 | /* Ignore extra outermost context from SunPRO cc and acc. */ | |
487 | if (info->n_opt_found && desc == 1) | |
488 | break; | |
489 | ||
490 | if (! info->within_function) | |
491 | { | |
492 | fprintf (stderr, _("N_LBRAC not within function\n")); | |
493 | return false; | |
494 | } | |
495 | ||
496 | /* Start an inner lexical block. */ | |
497 | if (! debug_start_block (dhandle, | |
498 | (value | |
499 | + info->file_start_offset | |
500 | + info->function_start_offset))) | |
501 | return false; | |
502 | ||
503 | /* Emit any pending variable definitions. */ | |
504 | if (! stab_emit_pending_vars (dhandle, info)) | |
505 | return false; | |
506 | ||
507 | ++info->block_depth; | |
508 | break; | |
509 | ||
510 | case N_RBRAC: | |
511 | /* Ignore extra outermost context from SunPRO cc and acc. */ | |
512 | if (info->n_opt_found && desc == 1) | |
513 | break; | |
514 | ||
515 | /* We shouldn't have any pending variable definitions here, but, | |
516 | if we do, we probably need to emit them before closing the | |
517 | block. */ | |
518 | if (! stab_emit_pending_vars (dhandle, info)) | |
519 | return false; | |
520 | ||
521 | /* End an inner lexical block. */ | |
522 | if (! debug_end_block (dhandle, | |
523 | (value | |
524 | + info->file_start_offset | |
525 | + info->function_start_offset))) | |
526 | return false; | |
527 | ||
528 | --info->block_depth; | |
529 | if (info->block_depth < 0) | |
530 | { | |
531 | fprintf (stderr, _("Too many N_RBRACs\n")); | |
532 | return false; | |
533 | } | |
534 | break; | |
535 | ||
536 | case N_SO: | |
537 | /* This always ends a function. */ | |
538 | if (info->within_function) | |
539 | { | |
540 | bfd_vma endval; | |
541 | ||
542 | endval = value; | |
543 | if (*string != '\0' | |
544 | && info->function_end != (bfd_vma) -1 | |
545 | && info->function_end < endval) | |
546 | endval = info->function_end; | |
547 | if (! stab_emit_pending_vars (dhandle, info) | |
548 | || ! debug_end_function (dhandle, endval)) | |
549 | return false; | |
550 | info->within_function = false; | |
551 | info->function_end = (bfd_vma) -1; | |
552 | } | |
553 | ||
554 | /* An empty string is emitted by gcc at the end of a compilation | |
555 | unit. */ | |
556 | if (*string == '\0') | |
557 | return true; | |
558 | ||
559 | /* Just accumulate strings until we see a non N_SO symbol. If | |
560 | the string starts with a directory separator or some other | |
561 | form of absolute path specification, we discard the previously | |
562 | accumulated strings. */ | |
563 | if (info->so_string == NULL) | |
564 | info->so_string = xstrdup (string); | |
565 | else | |
566 | { | |
567 | char *f; | |
568 | ||
569 | f = info->so_string; | |
570 | ||
571 | if ( (string[0] == '/') | |
572 | || (string[0] == DIR_SEPARATOR) | |
573 | || ( (DIR_SEPARATOR == '\\') | |
574 | && (string[1] == ':') | |
575 | && ( (string[2] == DIR_SEPARATOR) | |
576 | || (string[2] == '/')))) | |
577 | info->so_string = xstrdup (string); | |
578 | else | |
579 | info->so_string = concat (info->so_string, string, | |
580 | (const char *) NULL); | |
581 | free (f); | |
582 | } | |
583 | ||
584 | info->so_value = value; | |
585 | ||
586 | break; | |
587 | ||
588 | case N_SOL: | |
589 | /* Start an include file. */ | |
590 | if (! debug_start_source (dhandle, string)) | |
591 | return false; | |
592 | break; | |
593 | ||
594 | case N_BINCL: | |
595 | /* Start an include file which may be replaced. */ | |
596 | push_bincl (info, string, value); | |
597 | if (! debug_start_source (dhandle, string)) | |
598 | return false; | |
599 | break; | |
600 | ||
601 | case N_EINCL: | |
602 | /* End an N_BINCL include. */ | |
603 | if (! debug_start_source (dhandle, pop_bincl (info))) | |
604 | return false; | |
605 | break; | |
606 | ||
607 | case N_EXCL: | |
608 | /* This is a duplicate of a header file named by N_BINCL which | |
609 | was eliminated by the linker. */ | |
610 | if (! find_excl (info, string, value)) | |
611 | return false; | |
612 | break; | |
613 | ||
614 | case N_SLINE: | |
615 | if (! debug_record_line (dhandle, desc, | |
616 | value + info->function_start_offset)) | |
617 | return false; | |
618 | break; | |
619 | ||
620 | case N_BCOMM: | |
621 | if (! debug_start_common_block (dhandle, string)) | |
622 | return false; | |
623 | break; | |
624 | ||
625 | case N_ECOMM: | |
626 | if (! debug_end_common_block (dhandle, string)) | |
627 | return false; | |
628 | break; | |
629 | ||
630 | case N_FUN: | |
631 | if (*string == '\0') | |
632 | { | |
633 | if (info->within_function) | |
634 | { | |
635 | /* This always marks the end of a function; we don't | |
636 | need to worry about info->function_end. */ | |
637 | if (info->sections) | |
638 | value += info->function_start_offset; | |
639 | if (! stab_emit_pending_vars (dhandle, info) | |
640 | || ! debug_end_function (dhandle, value)) | |
641 | return false; | |
642 | info->within_function = false; | |
643 | info->function_end = (bfd_vma) -1; | |
644 | } | |
645 | break; | |
646 | } | |
647 | ||
648 | /* A const static symbol in the .text section will have an N_FUN | |
649 | entry. We need to use these to mark the end of the function, | |
650 | in case we are looking at gcc output before it was changed to | |
651 | always emit an empty N_FUN. We can't call debug_end_function | |
652 | here, because it might be a local static symbol. */ | |
653 | if (info->within_function | |
654 | && (info->function_end == (bfd_vma) -1 | |
655 | || value < info->function_end)) | |
656 | info->function_end = value; | |
657 | ||
658 | /* Fall through. */ | |
659 | /* FIXME: gdb checks the string for N_STSYM, N_LCSYM or N_ROSYM | |
660 | symbols, and if it does not start with :S, gdb relocates the | |
661 | value to the start of the section. gcc always seems to use | |
662 | :S, so we don't worry about this. */ | |
663 | /* Fall through. */ | |
664 | default: | |
665 | { | |
666 | const char *colon; | |
667 | ||
668 | colon = strchr (string, ':'); | |
669 | if (colon != NULL | |
670 | && (colon[1] == 'f' || colon[1] == 'F')) | |
671 | { | |
672 | if (info->within_function) | |
673 | { | |
674 | bfd_vma endval; | |
675 | ||
676 | endval = value; | |
677 | if (info->function_end != (bfd_vma) -1 | |
678 | && info->function_end < endval) | |
679 | endval = info->function_end; | |
680 | if (! stab_emit_pending_vars (dhandle, info) | |
681 | || ! debug_end_function (dhandle, endval)) | |
682 | return false; | |
683 | info->function_end = (bfd_vma) -1; | |
684 | } | |
685 | /* For stabs in sections, line numbers and block addresses | |
686 | are offsets from the start of the function. */ | |
687 | if (info->sections) | |
688 | info->function_start_offset = value; | |
689 | info->within_function = true; | |
690 | } | |
691 | ||
692 | if (! parse_stab_string (dhandle, info, type, desc, value, string)) | |
693 | return false; | |
694 | } | |
695 | break; | |
696 | ||
697 | case N_OPT: | |
698 | if (string != NULL && strcmp (string, "gcc2_compiled.") == 0) | |
699 | info->gcc_compiled = 2; | |
700 | else if (string != NULL && strcmp (string, "gcc_compiled.") == 0) | |
701 | info->gcc_compiled = 1; | |
702 | else | |
703 | info->n_opt_found = true; | |
704 | break; | |
705 | ||
706 | case N_OBJ: | |
707 | case N_ENDM: | |
708 | case N_MAIN: | |
709 | break; | |
710 | } | |
711 | ||
712 | return true; | |
713 | } | |
714 | ||
715 | /* Parse the stabs string. */ | |
716 | ||
717 | static boolean | |
718 | parse_stab_string (dhandle, info, stabtype, desc, value, string) | |
719 | PTR dhandle; | |
720 | struct stab_handle *info; | |
721 | int stabtype; | |
722 | int desc; | |
723 | bfd_vma value; | |
724 | const char *string; | |
725 | { | |
726 | const char *p; | |
727 | char *name; | |
728 | int type; | |
729 | debug_type dtype; | |
730 | boolean synonym; | |
731 | boolean self_crossref; | |
732 | unsigned int lineno; | |
733 | debug_type *slot; | |
734 | ||
735 | p = strchr (string, ':'); | |
736 | if (p == NULL) | |
737 | return true; | |
738 | ||
739 | while (p[1] == ':') | |
740 | { | |
741 | p += 2; | |
742 | p = strchr (p, ':'); | |
743 | if (p == NULL) | |
744 | { | |
745 | bad_stab (string); | |
746 | return false; | |
747 | } | |
748 | } | |
749 | ||
750 | /* GCC 2.x puts the line number in desc. SunOS apparently puts in | |
751 | the number of bytes occupied by a type or object, which we | |
752 | ignore. */ | |
753 | if (info->gcc_compiled >= 2) | |
754 | lineno = desc; | |
755 | else | |
756 | lineno = 0; | |
757 | ||
758 | /* FIXME: Sometimes the special C++ names start with '.'. */ | |
759 | name = NULL; | |
760 | if (string[0] == '$') | |
761 | { | |
762 | switch (string[1]) | |
763 | { | |
764 | case 't': | |
765 | name = "this"; | |
766 | break; | |
767 | case 'v': | |
768 | /* Was: name = "vptr"; */ | |
769 | break; | |
770 | case 'e': | |
771 | name = "eh_throw"; | |
772 | break; | |
773 | case '_': | |
774 | /* This was an anonymous type that was never fixed up. */ | |
775 | break; | |
776 | case 'X': | |
777 | /* SunPRO (3.0 at least) static variable encoding. */ | |
778 | break; | |
779 | default: | |
780 | warn_stab (string, _("unknown C++ encoded name")); | |
781 | break; | |
782 | } | |
783 | } | |
784 | ||
785 | if (name == NULL) | |
786 | { | |
787 | if (p == string || (string[0] == ' ' && p == string + 1)) | |
788 | name = NULL; | |
789 | else | |
790 | name = savestring (string, p - string); | |
791 | } | |
792 | ||
793 | ++p; | |
794 | if (isdigit ((unsigned char) *p) || *p == '(' || *p == '-') | |
795 | type = 'l'; | |
796 | else | |
797 | type = *p++; | |
798 | ||
799 | switch (type) | |
800 | { | |
801 | case 'c': | |
802 | /* c is a special case, not followed by a type-number. | |
803 | SYMBOL:c=iVALUE for an integer constant symbol. | |
804 | SYMBOL:c=rVALUE for a floating constant symbol. | |
805 | SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol. | |
806 | e.g. "b:c=e6,0" for "const b = blob1" | |
807 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ | |
808 | if (*p != '=') | |
809 | { | |
810 | bad_stab (string); | |
811 | return false; | |
812 | } | |
813 | ++p; | |
814 | switch (*p++) | |
815 | { | |
816 | case 'r': | |
817 | /* Floating point constant. */ | |
818 | if (! debug_record_float_const (dhandle, name, atof (p))) | |
819 | return false; | |
820 | break; | |
821 | case 'i': | |
822 | /* Integer constant. */ | |
823 | /* Defining integer constants this way is kind of silly, | |
824 | since 'e' constants allows the compiler to give not only | |
825 | the value, but the type as well. C has at least int, | |
826 | long, unsigned int, and long long as constant types; | |
827 | other languages probably should have at least unsigned as | |
828 | well as signed constants. */ | |
829 | if (! debug_record_int_const (dhandle, name, atoi (p))) | |
830 | return false; | |
831 | break; | |
832 | case 'e': | |
833 | /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value | |
834 | can be represented as integral. | |
835 | e.g. "b:c=e6,0" for "const b = blob1" | |
836 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ | |
837 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, | |
838 | &p, (debug_type **) NULL); | |
839 | if (dtype == DEBUG_TYPE_NULL) | |
840 | return false; | |
841 | if (*p != ',') | |
842 | { | |
843 | bad_stab (string); | |
844 | return false; | |
845 | } | |
846 | if (! debug_record_typed_const (dhandle, name, dtype, atoi (p))) | |
847 | return false; | |
848 | break; | |
849 | default: | |
850 | bad_stab (string); | |
851 | return false; | |
852 | } | |
853 | ||
854 | break; | |
855 | ||
856 | case 'C': | |
857 | /* The name of a caught exception. */ | |
858 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, | |
859 | &p, (debug_type **) NULL); | |
860 | if (dtype == DEBUG_TYPE_NULL) | |
861 | return false; | |
862 | if (! debug_record_label (dhandle, name, dtype, value)) | |
863 | return false; | |
864 | break; | |
865 | ||
866 | case 'f': | |
867 | case 'F': | |
868 | /* A function definition. */ | |
869 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
870 | (debug_type **) NULL); | |
871 | if (dtype == DEBUG_TYPE_NULL) | |
872 | return false; | |
873 | if (! debug_record_function (dhandle, name, dtype, type == 'F', value)) | |
874 | return false; | |
875 | ||
876 | /* Sun acc puts declared types of arguments here. We don't care | |
877 | about their actual types (FIXME -- we should remember the whole | |
878 | function prototype), but the list may define some new types | |
879 | that we have to remember, so we must scan it now. */ | |
880 | while (*p == ';') | |
881 | { | |
882 | ++p; | |
883 | if (parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
884 | (debug_type **) NULL) | |
885 | == DEBUG_TYPE_NULL) | |
886 | return false; | |
887 | } | |
888 | ||
889 | break; | |
890 | ||
891 | case 'G': | |
892 | { | |
893 | char leading; | |
894 | long c; | |
895 | asymbol **ps; | |
896 | ||
897 | /* A global symbol. The value must be extracted from the | |
898 | symbol table. */ | |
899 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
900 | (debug_type **) NULL); | |
901 | if (dtype == DEBUG_TYPE_NULL) | |
902 | return false; | |
903 | leading = bfd_get_symbol_leading_char (info->abfd); | |
904 | for (c = info->symcount, ps = info->syms; c > 0; --c, ++ps) | |
905 | { | |
906 | const char *n; | |
907 | ||
908 | n = bfd_asymbol_name (*ps); | |
909 | if (leading != '\0' && *n == leading) | |
910 | ++n; | |
911 | if (*n == *name && strcmp (n, name) == 0) | |
912 | break; | |
913 | } | |
914 | if (c > 0) | |
915 | value = bfd_asymbol_value (*ps); | |
916 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_GLOBAL, | |
917 | value)) | |
918 | return false; | |
919 | } | |
920 | break; | |
921 | ||
922 | /* This case is faked by a conditional above, when there is no | |
923 | code letter in the dbx data. Dbx data never actually | |
924 | contains 'l'. */ | |
925 | case 'l': | |
926 | case 's': | |
927 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
928 | (debug_type **) NULL); | |
929 | if (dtype == DEBUG_TYPE_NULL) | |
930 | return false; | |
931 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL, | |
932 | value)) | |
933 | return false; | |
934 | break; | |
935 | ||
936 | case 'p': | |
937 | /* A function parameter. */ | |
938 | if (*p != 'F') | |
939 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
940 | (debug_type **) NULL); | |
941 | else | |
942 | { | |
943 | /* pF is a two-letter code that means a function parameter in | |
944 | Fortran. The type-number specifies the type of the return | |
945 | value. Translate it into a pointer-to-function type. */ | |
946 | ++p; | |
947 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
948 | (debug_type **) NULL); | |
949 | if (dtype != DEBUG_TYPE_NULL) | |
950 | { | |
951 | debug_type ftype; | |
952 | ||
953 | ftype = debug_make_function_type (dhandle, dtype, | |
954 | (debug_type *) NULL, false); | |
955 | dtype = debug_make_pointer_type (dhandle, ftype); | |
956 | } | |
957 | } | |
958 | if (dtype == DEBUG_TYPE_NULL) | |
959 | return false; | |
960 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_STACK, | |
961 | value)) | |
962 | return false; | |
963 | ||
964 | /* FIXME: At this point gdb considers rearranging the parameter | |
965 | address on a big endian machine if it is smaller than an int. | |
966 | We have no way to do that, since we don't really know much | |
967 | about the target. */ | |
968 | ||
969 | break; | |
970 | ||
971 | case 'P': | |
972 | if (stabtype == N_FUN) | |
973 | { | |
974 | /* Prototype of a function referenced by this file. */ | |
975 | while (*p == ';') | |
976 | { | |
977 | ++p; | |
978 | if (parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
979 | (debug_type **) NULL) | |
980 | == DEBUG_TYPE_NULL) | |
981 | return false; | |
982 | } | |
983 | break; | |
984 | } | |
985 | /* Fall through. */ | |
986 | case 'R': | |
987 | /* Parameter which is in a register. */ | |
988 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
989 | (debug_type **) NULL); | |
990 | if (dtype == DEBUG_TYPE_NULL) | |
991 | return false; | |
992 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REG, | |
993 | value)) | |
994 | return false; | |
995 | break; | |
996 | ||
997 | case 'r': | |
998 | /* Register variable (either global or local). */ | |
999 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
1000 | (debug_type **) NULL); | |
1001 | if (dtype == DEBUG_TYPE_NULL) | |
1002 | return false; | |
1003 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_REGISTER, | |
1004 | value)) | |
1005 | return false; | |
1006 | ||
1007 | /* FIXME: At this point gdb checks to combine pairs of 'p' and | |
1008 | 'r' stabs into a single 'P' stab. */ | |
1009 | ||
1010 | break; | |
1011 | ||
1012 | case 'S': | |
1013 | /* Static symbol at top level of file */ | |
1014 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
1015 | (debug_type **) NULL); | |
1016 | if (dtype == DEBUG_TYPE_NULL) | |
1017 | return false; | |
1018 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_STATIC, | |
1019 | value)) | |
1020 | return false; | |
1021 | break; | |
1022 | ||
1023 | case 't': | |
1024 | /* A typedef. */ | |
1025 | dtype = parse_stab_type (dhandle, info, name, &p, &slot); | |
1026 | if (dtype == DEBUG_TYPE_NULL) | |
1027 | return false; | |
1028 | if (name == NULL) | |
1029 | { | |
1030 | /* A nameless type. Nothing to do. */ | |
1031 | return true; | |
1032 | } | |
1033 | ||
1034 | dtype = debug_name_type (dhandle, name, dtype); | |
1035 | if (dtype == DEBUG_TYPE_NULL) | |
1036 | return false; | |
1037 | ||
1038 | if (slot != NULL) | |
1039 | *slot = dtype; | |
1040 | ||
1041 | break; | |
1042 | ||
1043 | case 'T': | |
1044 | /* Struct, union, or enum tag. For GNU C++, this can be be followed | |
1045 | by 't' which means we are typedef'ing it as well. */ | |
1046 | if (*p != 't') | |
1047 | { | |
1048 | synonym = false; | |
1049 | /* FIXME: gdb sets synonym to true if the current language | |
1050 | is C++. */ | |
1051 | } | |
1052 | else | |
1053 | { | |
1054 | synonym = true; | |
1055 | ++p; | |
1056 | } | |
1057 | ||
1058 | dtype = parse_stab_type (dhandle, info, name, &p, &slot); | |
1059 | if (dtype == DEBUG_TYPE_NULL) | |
1060 | return false; | |
1061 | if (name == NULL) | |
1062 | return true; | |
1063 | ||
1064 | /* INFO->SELF_CROSSREF is set by parse_stab_type if this type is | |
1065 | a cross reference to itself. These are generated by some | |
1066 | versions of g++. */ | |
1067 | self_crossref = info->self_crossref; | |
1068 | ||
1069 | dtype = debug_tag_type (dhandle, name, dtype); | |
1070 | if (dtype == DEBUG_TYPE_NULL) | |
1071 | return false; | |
1072 | if (slot != NULL) | |
1073 | *slot = dtype; | |
1074 | ||
1075 | /* See if we have a cross reference to this tag which we can now | |
1076 | fill in. Avoid filling in a cross reference to ourselves, | |
1077 | because that would lead to circular debugging information. */ | |
1078 | if (! self_crossref) | |
1079 | { | |
1080 | register struct stab_tag **pst; | |
1081 | ||
1082 | for (pst = &info->tags; *pst != NULL; pst = &(*pst)->next) | |
1083 | { | |
1084 | if ((*pst)->name[0] == name[0] | |
1085 | && strcmp ((*pst)->name, name) == 0) | |
1086 | { | |
1087 | (*pst)->slot = dtype; | |
1088 | *pst = (*pst)->next; | |
1089 | break; | |
1090 | } | |
1091 | } | |
1092 | } | |
1093 | ||
1094 | if (synonym) | |
1095 | { | |
1096 | dtype = debug_name_type (dhandle, name, dtype); | |
1097 | if (dtype == DEBUG_TYPE_NULL) | |
1098 | return false; | |
1099 | ||
1100 | if (slot != NULL) | |
1101 | *slot = dtype; | |
1102 | } | |
1103 | ||
1104 | break; | |
1105 | ||
1106 | case 'V': | |
1107 | /* Static symbol of local scope */ | |
1108 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
1109 | (debug_type **) NULL); | |
1110 | if (dtype == DEBUG_TYPE_NULL) | |
1111 | return false; | |
1112 | /* FIXME: gdb checks os9k_stabs here. */ | |
1113 | if (! stab_record_variable (dhandle, info, name, dtype, | |
1114 | DEBUG_LOCAL_STATIC, value)) | |
1115 | return false; | |
1116 | break; | |
1117 | ||
1118 | case 'v': | |
1119 | /* Reference parameter. */ | |
1120 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
1121 | (debug_type **) NULL); | |
1122 | if (dtype == DEBUG_TYPE_NULL) | |
1123 | return false; | |
1124 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REFERENCE, | |
1125 | value)) | |
1126 | return false; | |
1127 | break; | |
1128 | ||
1129 | case 'a': | |
1130 | /* Reference parameter which is in a register. */ | |
1131 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
1132 | (debug_type **) NULL); | |
1133 | if (dtype == DEBUG_TYPE_NULL) | |
1134 | return false; | |
1135 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REF_REG, | |
1136 | value)) | |
1137 | return false; | |
1138 | break; | |
1139 | ||
1140 | case 'X': | |
1141 | /* This is used by Sun FORTRAN for "function result value". | |
1142 | Sun claims ("dbx and dbxtool interfaces", 2nd ed) | |
1143 | that Pascal uses it too, but when I tried it Pascal used | |
1144 | "x:3" (local symbol) instead. */ | |
1145 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, | |
1146 | (debug_type **) NULL); | |
1147 | if (dtype == DEBUG_TYPE_NULL) | |
1148 | return false; | |
1149 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL, | |
1150 | value)) | |
1151 | return false; | |
1152 | break; | |
1153 | ||
1154 | default: | |
1155 | bad_stab (string); | |
1156 | return false; | |
1157 | } | |
1158 | ||
1159 | /* FIXME: gdb converts structure values to structure pointers in a | |
1160 | couple of cases, depending upon the target. */ | |
1161 | ||
1162 | return true; | |
1163 | } | |
1164 | ||
1165 | /* Parse a stabs type. The typename argument is non-NULL if this is a | |
1166 | typedef or a tag definition. The pp argument points to the stab | |
1167 | string, and is updated. The slotp argument points to a place to | |
1168 | store the slot used if the type is being defined. */ | |
1169 | ||
1170 | static debug_type | |
1171 | parse_stab_type (dhandle, info, typename, pp, slotp) | |
1172 | PTR dhandle; | |
1173 | struct stab_handle *info; | |
1174 | const char *typename; | |
1175 | const char **pp; | |
1176 | debug_type **slotp; | |
1177 | { | |
1178 | const char *orig; | |
1179 | int typenums[2]; | |
1180 | int size; | |
1181 | boolean stringp; | |
1182 | int descriptor; | |
1183 | debug_type dtype; | |
1184 | ||
1185 | if (slotp != NULL) | |
1186 | *slotp = NULL; | |
1187 | ||
1188 | orig = *pp; | |
1189 | ||
1190 | size = -1; | |
1191 | stringp = false; | |
1192 | ||
1193 | info->self_crossref = false; | |
1194 | ||
1195 | /* Read type number if present. The type number may be omitted. | |
1196 | for instance in a two-dimensional array declared with type | |
1197 | "ar1;1;10;ar1;1;10;4". */ | |
1198 | if (! isdigit ((unsigned char) **pp) && **pp != '(' && **pp != '-') | |
1199 | { | |
1200 | /* 'typenums=' not present, type is anonymous. Read and return | |
1201 | the definition, but don't put it in the type vector. */ | |
1202 | typenums[0] = typenums[1] = -1; | |
1203 | } | |
1204 | else | |
1205 | { | |
1206 | if (! parse_stab_type_number (pp, typenums)) | |
1207 | return DEBUG_TYPE_NULL; | |
1208 | ||
1209 | if (**pp != '=') | |
1210 | { | |
1211 | /* Type is not being defined here. Either it already | |
1212 | exists, or this is a forward reference to it. */ | |
1213 | return stab_find_type (dhandle, info, typenums); | |
1214 | } | |
1215 | ||
1216 | /* Only set the slot if the type is being defined. This means | |
1217 | that the mapping from type numbers to types will only record | |
1218 | the name of the typedef which defines a type. If we don't do | |
1219 | this, then something like | |
1220 | typedef int foo; | |
1221 | int i; | |
1222 | will record that i is of type foo. Unfortunately, stabs | |
1223 | information is ambiguous about variable types. For this code, | |
1224 | typedef int foo; | |
1225 | int i; | |
1226 | foo j; | |
1227 | the stabs information records both i and j as having the same | |
1228 | type. This could be fixed by patching the compiler. */ | |
1229 | if (slotp != NULL && typenums[0] >= 0 && typenums[1] >= 0) | |
1230 | *slotp = stab_find_slot (info, typenums); | |
1231 | ||
1232 | /* Type is being defined here. */ | |
1233 | /* Skip the '='. */ | |
1234 | ++*pp; | |
1235 | ||
1236 | while (**pp == '@') | |
1237 | { | |
1238 | const char *p = *pp + 1; | |
1239 | const char *attr; | |
1240 | ||
1241 | if (isdigit ((unsigned char) *p) || *p == '(' || *p == '-') | |
1242 | { | |
1243 | /* Member type. */ | |
1244 | break; | |
1245 | } | |
1246 | ||
1247 | /* Type attributes. */ | |
1248 | attr = p; | |
1249 | ||
1250 | for (; *p != ';'; ++p) | |
1251 | { | |
1252 | if (*p == '\0') | |
1253 | { | |
1254 | bad_stab (orig); | |
1255 | return DEBUG_TYPE_NULL; | |
1256 | } | |
1257 | } | |
1258 | *pp = p + 1; | |
1259 | ||
1260 | switch (*attr) | |
1261 | { | |
1262 | case 's': | |
1263 | size = atoi (attr + 1); | |
1264 | if (size <= 0) | |
1265 | size = -1; | |
1266 | break; | |
1267 | ||
1268 | case 'S': | |
1269 | stringp = true; | |
1270 | break; | |
1271 | ||
1272 | default: | |
1273 | /* Ignore unrecognized type attributes, so future | |
1274 | compilers can invent new ones. */ | |
1275 | break; | |
1276 | } | |
1277 | } | |
1278 | } | |
1279 | ||
1280 | descriptor = **pp; | |
1281 | ++*pp; | |
1282 | ||
1283 | switch (descriptor) | |
1284 | { | |
1285 | case 'x': | |
1286 | { | |
1287 | enum debug_type_kind code; | |
1288 | const char *q1, *q2, *p; | |
1289 | ||
1290 | /* A cross reference to another type. */ | |
1291 | ||
1292 | switch (**pp) | |
1293 | { | |
1294 | case 's': | |
1295 | code = DEBUG_KIND_STRUCT; | |
1296 | break; | |
1297 | case 'u': | |
1298 | code = DEBUG_KIND_UNION; | |
1299 | break; | |
1300 | case 'e': | |
1301 | code = DEBUG_KIND_ENUM; | |
1302 | break; | |
1303 | default: | |
1304 | /* Complain and keep going, so compilers can invent new | |
1305 | cross-reference types. */ | |
1306 | warn_stab (orig, _("unrecognized cross reference type")); | |
1307 | code = DEBUG_KIND_STRUCT; | |
1308 | break; | |
1309 | } | |
1310 | ++*pp; | |
1311 | ||
1312 | q1 = strchr (*pp, '<'); | |
1313 | p = strchr (*pp, ':'); | |
1314 | if (p == NULL) | |
1315 | { | |
1316 | bad_stab (orig); | |
1317 | return DEBUG_TYPE_NULL; | |
1318 | } | |
c602a165 | 1319 | if (q1 != NULL && p > q1 && p[1] == ':') |
252b5132 | 1320 | { |
c602a165 ILT |
1321 | int nest = 0; |
1322 | ||
1323 | for (q2 = q1; *q2 != '\0'; ++q2) | |
1324 | { | |
1325 | if (*q2 == '<') | |
1326 | ++nest; | |
1327 | else if (*q2 == '>') | |
1328 | --nest; | |
1329 | else if (*q2 == ':' && nest == 0) | |
1330 | break; | |
1331 | } | |
1332 | p = q2; | |
1333 | if (*p != ':') | |
252b5132 RH |
1334 | { |
1335 | bad_stab (orig); | |
1336 | return DEBUG_TYPE_NULL; | |
1337 | } | |
1338 | } | |
1339 | ||
1340 | /* Some versions of g++ can emit stabs like | |
1341 | fleep:T20=xsfleep: | |
1342 | which define structures in terms of themselves. We need to | |
1343 | tell the caller to avoid building a circular structure. */ | |
1344 | if (typename != NULL | |
1345 | && strncmp (typename, *pp, p - *pp) == 0 | |
1346 | && typename[p - *pp] == '\0') | |
1347 | info->self_crossref = true; | |
1348 | ||
1349 | dtype = stab_find_tagged_type (dhandle, info, *pp, p - *pp, code); | |
1350 | ||
1351 | *pp = p + 1; | |
1352 | } | |
1353 | break; | |
1354 | ||
1355 | case '-': | |
1356 | case '0': | |
1357 | case '1': | |
1358 | case '2': | |
1359 | case '3': | |
1360 | case '4': | |
1361 | case '5': | |
1362 | case '6': | |
1363 | case '7': | |
1364 | case '8': | |
1365 | case '9': | |
1366 | case '(': | |
1367 | { | |
1368 | const char *hold; | |
1369 | int xtypenums[2]; | |
1370 | ||
1371 | /* This type is defined as another type. */ | |
1372 | ||
1373 | (*pp)--; | |
1374 | hold = *pp; | |
1375 | ||
1376 | /* Peek ahead at the number to detect void. */ | |
1377 | if (! parse_stab_type_number (pp, xtypenums)) | |
1378 | return DEBUG_TYPE_NULL; | |
1379 | ||
1380 | if (typenums[0] == xtypenums[0] && typenums[1] == xtypenums[1]) | |
1381 | { | |
1382 | /* This type is being defined as itself, which means that | |
1383 | it is void. */ | |
1384 | dtype = debug_make_void_type (dhandle); | |
1385 | } | |
1386 | else | |
1387 | { | |
1388 | *pp = hold; | |
1389 | ||
1390 | /* Go back to the number and have parse_stab_type get it. | |
1391 | This means that we can deal with something like | |
1392 | t(1,2)=(3,4)=... which the Lucid compiler uses. */ | |
1393 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, | |
1394 | pp, (debug_type **) NULL); | |
1395 | if (dtype == DEBUG_TYPE_NULL) | |
1396 | return DEBUG_TYPE_NULL; | |
1397 | } | |
1398 | ||
1399 | if (typenums[0] != -1) | |
1400 | { | |
1401 | if (! stab_record_type (dhandle, info, typenums, dtype)) | |
1402 | return DEBUG_TYPE_NULL; | |
1403 | } | |
1404 | ||
1405 | break; | |
1406 | } | |
1407 | ||
1408 | case '*': | |
1409 | dtype = debug_make_pointer_type (dhandle, | |
1410 | parse_stab_type (dhandle, info, | |
1411 | (const char *) NULL, | |
1412 | pp, | |
1413 | (debug_type **) NULL)); | |
1414 | break; | |
1415 | ||
1416 | case '&': | |
1417 | /* Reference to another type. */ | |
1418 | dtype = (debug_make_reference_type | |
1419 | (dhandle, | |
1420 | parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
1421 | (debug_type **) NULL))); | |
1422 | break; | |
1423 | ||
1424 | case 'f': | |
1425 | /* Function returning another type. */ | |
1426 | /* FIXME: gdb checks os9k_stabs here. */ | |
1427 | dtype = (debug_make_function_type | |
1428 | (dhandle, | |
1429 | parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
1430 | (debug_type **) NULL), | |
1431 | (debug_type *) NULL, false)); | |
1432 | break; | |
1433 | ||
1434 | case 'k': | |
1435 | /* Const qualifier on some type (Sun). */ | |
1436 | /* FIXME: gdb accepts 'c' here if os9k_stabs. */ | |
1437 | dtype = debug_make_const_type (dhandle, | |
1438 | parse_stab_type (dhandle, info, | |
1439 | (const char *) NULL, | |
1440 | pp, | |
1441 | (debug_type **) NULL)); | |
1442 | break; | |
1443 | ||
1444 | case 'B': | |
1445 | /* Volatile qual on some type (Sun). */ | |
1446 | /* FIXME: gdb accepts 'i' here if os9k_stabs. */ | |
1447 | dtype = (debug_make_volatile_type | |
1448 | (dhandle, | |
1449 | parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
1450 | (debug_type **) NULL))); | |
1451 | break; | |
1452 | ||
1453 | case '@': | |
1454 | /* Offset (class & variable) type. This is used for a pointer | |
1455 | relative to an object. */ | |
1456 | { | |
1457 | debug_type domain; | |
1458 | debug_type memtype; | |
1459 | ||
1460 | /* Member type. */ | |
1461 | ||
1462 | domain = parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
1463 | (debug_type **) NULL); | |
1464 | if (domain == DEBUG_TYPE_NULL) | |
1465 | return DEBUG_TYPE_NULL; | |
1466 | ||
1467 | if (**pp != ',') | |
1468 | { | |
1469 | bad_stab (orig); | |
1470 | return DEBUG_TYPE_NULL; | |
1471 | } | |
1472 | ++*pp; | |
1473 | ||
1474 | memtype = parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
1475 | (debug_type **) NULL); | |
1476 | if (memtype == DEBUG_TYPE_NULL) | |
1477 | return DEBUG_TYPE_NULL; | |
1478 | ||
1479 | dtype = debug_make_offset_type (dhandle, domain, memtype); | |
1480 | } | |
1481 | break; | |
1482 | ||
1483 | case '#': | |
1484 | /* Method (class & fn) type. */ | |
1485 | if (**pp == '#') | |
1486 | { | |
1487 | debug_type return_type; | |
1488 | ||
1489 | ++*pp; | |
1490 | return_type = parse_stab_type (dhandle, info, (const char *) NULL, | |
1491 | pp, (debug_type **) NULL); | |
1492 | if (return_type == DEBUG_TYPE_NULL) | |
1493 | return DEBUG_TYPE_NULL; | |
1494 | if (**pp != ';') | |
1495 | { | |
1496 | bad_stab (orig); | |
1497 | return DEBUG_TYPE_NULL; | |
1498 | } | |
1499 | ++*pp; | |
1500 | dtype = debug_make_method_type (dhandle, return_type, | |
1501 | DEBUG_TYPE_NULL, | |
1502 | (debug_type *) NULL, false); | |
1503 | } | |
1504 | else | |
1505 | { | |
1506 | debug_type domain; | |
1507 | debug_type return_type; | |
1508 | debug_type *args; | |
1509 | unsigned int n; | |
1510 | unsigned int alloc; | |
1511 | boolean varargs; | |
1512 | ||
1513 | domain = parse_stab_type (dhandle, info, (const char *) NULL, | |
1514 | pp, (debug_type **) NULL); | |
1515 | if (domain == DEBUG_TYPE_NULL) | |
1516 | return DEBUG_TYPE_NULL; | |
1517 | ||
1518 | if (**pp != ',') | |
1519 | { | |
1520 | bad_stab (orig); | |
1521 | return DEBUG_TYPE_NULL; | |
1522 | } | |
1523 | ++*pp; | |
1524 | ||
1525 | return_type = parse_stab_type (dhandle, info, (const char *) NULL, | |
1526 | pp, (debug_type **) NULL); | |
1527 | if (return_type == DEBUG_TYPE_NULL) | |
1528 | return DEBUG_TYPE_NULL; | |
1529 | ||
1530 | alloc = 10; | |
1531 | args = (debug_type *) xmalloc (alloc * sizeof *args); | |
1532 | n = 0; | |
1533 | while (**pp != ';') | |
1534 | { | |
1535 | if (**pp != ',') | |
1536 | { | |
1537 | bad_stab (orig); | |
1538 | return DEBUG_TYPE_NULL; | |
1539 | } | |
1540 | ++*pp; | |
1541 | ||
1542 | if (n + 1 >= alloc) | |
1543 | { | |
1544 | alloc += 10; | |
1545 | args = ((debug_type *) | |
1546 | xrealloc ((PTR) args, alloc * sizeof *args)); | |
1547 | } | |
1548 | ||
1549 | args[n] = parse_stab_type (dhandle, info, (const char *) NULL, | |
1550 | pp, (debug_type **) NULL); | |
1551 | if (args[n] == DEBUG_TYPE_NULL) | |
1552 | return DEBUG_TYPE_NULL; | |
1553 | ++n; | |
1554 | } | |
1555 | ++*pp; | |
1556 | ||
1557 | /* If the last type is not void, then this function takes a | |
1558 | variable number of arguments. Otherwise, we must strip | |
1559 | the void type. */ | |
1560 | if (n == 0 | |
1561 | || debug_get_type_kind (dhandle, args[n - 1]) != DEBUG_KIND_VOID) | |
1562 | varargs = true; | |
1563 | else | |
1564 | { | |
1565 | --n; | |
1566 | varargs = false; | |
1567 | } | |
1568 | ||
1569 | args[n] = DEBUG_TYPE_NULL; | |
1570 | ||
1571 | dtype = debug_make_method_type (dhandle, return_type, domain, args, | |
1572 | varargs); | |
1573 | } | |
1574 | break; | |
1575 | ||
1576 | case 'r': | |
1577 | /* Range type. */ | |
1578 | dtype = parse_stab_range_type (dhandle, info, typename, pp, typenums); | |
1579 | break; | |
1580 | ||
1581 | case 'b': | |
1582 | /* FIXME: gdb checks os9k_stabs here. */ | |
1583 | /* Sun ACC builtin int type. */ | |
1584 | dtype = parse_stab_sun_builtin_type (dhandle, pp); | |
1585 | break; | |
1586 | ||
1587 | case 'R': | |
1588 | /* Sun ACC builtin float type. */ | |
1589 | dtype = parse_stab_sun_floating_type (dhandle, pp); | |
1590 | break; | |
1591 | ||
1592 | case 'e': | |
1593 | /* Enumeration type. */ | |
1594 | dtype = parse_stab_enum_type (dhandle, pp); | |
1595 | break; | |
1596 | ||
1597 | case 's': | |
1598 | case 'u': | |
1599 | /* Struct or union type. */ | |
1600 | dtype = parse_stab_struct_type (dhandle, info, typename, pp, | |
1601 | descriptor == 's', typenums); | |
1602 | break; | |
1603 | ||
1604 | case 'a': | |
1605 | /* Array type. */ | |
1606 | if (**pp != 'r') | |
1607 | { | |
1608 | bad_stab (orig); | |
1609 | return DEBUG_TYPE_NULL; | |
1610 | } | |
1611 | ++*pp; | |
1612 | ||
1613 | dtype = parse_stab_array_type (dhandle, info, pp, stringp); | |
1614 | break; | |
1615 | ||
1616 | case 'S': | |
1617 | dtype = debug_make_set_type (dhandle, | |
1618 | parse_stab_type (dhandle, info, | |
1619 | (const char *) NULL, | |
1620 | pp, | |
1621 | (debug_type **) NULL), | |
1622 | stringp); | |
1623 | break; | |
1624 | ||
1625 | default: | |
1626 | bad_stab (orig); | |
1627 | return DEBUG_TYPE_NULL; | |
1628 | } | |
1629 | ||
1630 | if (dtype == DEBUG_TYPE_NULL) | |
1631 | return DEBUG_TYPE_NULL; | |
1632 | ||
1633 | if (typenums[0] != -1) | |
1634 | { | |
1635 | if (! stab_record_type (dhandle, info, typenums, dtype)) | |
1636 | return DEBUG_TYPE_NULL; | |
1637 | } | |
1638 | ||
1639 | if (size != -1) | |
1640 | { | |
1641 | if (! debug_record_type_size (dhandle, dtype, (unsigned int) size)) | |
1642 | return false; | |
1643 | } | |
1644 | ||
1645 | return dtype; | |
1646 | } | |
1647 | ||
1648 | /* Read a number by which a type is referred to in dbx data, or | |
1649 | perhaps read a pair (FILENUM, TYPENUM) in parentheses. Just a | |
1650 | single number N is equivalent to (0,N). Return the two numbers by | |
1651 | storing them in the vector TYPENUMS. */ | |
1652 | ||
1653 | static boolean | |
1654 | parse_stab_type_number (pp, typenums) | |
1655 | const char **pp; | |
1656 | int *typenums; | |
1657 | { | |
1658 | const char *orig; | |
1659 | ||
1660 | orig = *pp; | |
1661 | ||
1662 | if (**pp != '(') | |
1663 | { | |
1664 | typenums[0] = 0; | |
1665 | typenums[1] = (int) parse_number (pp, (boolean *) NULL); | |
1666 | } | |
1667 | else | |
1668 | { | |
1669 | ++*pp; | |
1670 | typenums[0] = (int) parse_number (pp, (boolean *) NULL); | |
1671 | if (**pp != ',') | |
1672 | { | |
1673 | bad_stab (orig); | |
1674 | return false; | |
1675 | } | |
1676 | ++*pp; | |
1677 | typenums[1] = (int) parse_number (pp, (boolean *) NULL); | |
1678 | if (**pp != ')') | |
1679 | { | |
1680 | bad_stab (orig); | |
1681 | return false; | |
1682 | } | |
1683 | ++*pp; | |
1684 | } | |
1685 | ||
1686 | return true; | |
1687 | } | |
1688 | ||
1689 | /* Parse a range type. */ | |
1690 | ||
1691 | static debug_type | |
1692 | parse_stab_range_type (dhandle, info, typename, pp, typenums) | |
1693 | PTR dhandle; | |
1694 | struct stab_handle *info; | |
1695 | const char *typename; | |
1696 | const char **pp; | |
1697 | const int *typenums; | |
1698 | { | |
1699 | const char *orig; | |
1700 | int rangenums[2]; | |
1701 | boolean self_subrange; | |
1702 | debug_type index_type; | |
1703 | const char *s2, *s3; | |
1704 | bfd_signed_vma n2, n3; | |
1705 | boolean ov2, ov3; | |
1706 | ||
1707 | orig = *pp; | |
1708 | ||
1709 | index_type = DEBUG_TYPE_NULL; | |
1710 | ||
1711 | /* First comes a type we are a subrange of. | |
1712 | In C it is usually 0, 1 or the type being defined. */ | |
1713 | if (! parse_stab_type_number (pp, rangenums)) | |
1714 | return DEBUG_TYPE_NULL; | |
1715 | ||
1716 | self_subrange = (rangenums[0] == typenums[0] | |
1717 | && rangenums[1] == typenums[1]); | |
1718 | ||
1719 | if (**pp == '=') | |
1720 | { | |
1721 | *pp = orig; | |
1722 | index_type = parse_stab_type (dhandle, info, (const char *) NULL, | |
1723 | pp, (debug_type **) NULL); | |
1724 | if (index_type == DEBUG_TYPE_NULL) | |
1725 | return DEBUG_TYPE_NULL; | |
1726 | } | |
1727 | ||
1728 | if (**pp == ';') | |
1729 | ++*pp; | |
1730 | ||
1731 | /* The remaining two operands are usually lower and upper bounds of | |
1732 | the range. But in some special cases they mean something else. */ | |
1733 | s2 = *pp; | |
1734 | n2 = parse_number (pp, &ov2); | |
1735 | if (**pp != ';') | |
1736 | { | |
1737 | bad_stab (orig); | |
1738 | return DEBUG_TYPE_NULL; | |
1739 | } | |
1740 | ++*pp; | |
1741 | ||
1742 | s3 = *pp; | |
1743 | n3 = parse_number (pp, &ov3); | |
1744 | if (**pp != ';') | |
1745 | { | |
1746 | bad_stab (orig); | |
1747 | return DEBUG_TYPE_NULL; | |
1748 | } | |
1749 | ++*pp; | |
1750 | ||
1751 | if (ov2 || ov3) | |
1752 | { | |
1753 | /* gcc will emit range stabs for long long types. Handle this | |
1754 | as a special case. FIXME: This needs to be more general. */ | |
1755 | #define LLLOW "01000000000000000000000;" | |
1756 | #define LLHIGH "0777777777777777777777;" | |
1757 | #define ULLHIGH "01777777777777777777777;" | |
1758 | if (index_type == DEBUG_TYPE_NULL) | |
1759 | { | |
1760 | if (strncmp (s2, LLLOW, sizeof LLLOW - 1) == 0 | |
1761 | && strncmp (s3, LLHIGH, sizeof LLHIGH - 1) == 0) | |
1762 | return debug_make_int_type (dhandle, 8, false); | |
1763 | if (! ov2 | |
1764 | && n2 == 0 | |
1765 | && strncmp (s3, ULLHIGH, sizeof ULLHIGH - 1) == 0) | |
1766 | return debug_make_int_type (dhandle, 8, true); | |
1767 | } | |
1768 | ||
1769 | warn_stab (orig, _("numeric overflow")); | |
1770 | } | |
1771 | ||
1772 | if (index_type == DEBUG_TYPE_NULL) | |
1773 | { | |
1774 | /* A type defined as a subrange of itself, with both bounds 0, | |
1775 | is void. */ | |
1776 | if (self_subrange && n2 == 0 && n3 == 0) | |
1777 | return debug_make_void_type (dhandle); | |
1778 | ||
1779 | /* A type defined as a subrange of itself, with n2 positive and | |
1780 | n3 zero, is a complex type, and n2 is the number of bytes. */ | |
1781 | if (self_subrange && n3 == 0 && n2 > 0) | |
1782 | return debug_make_complex_type (dhandle, n2); | |
1783 | ||
1784 | /* If n3 is zero and n2 is positive, this is a floating point | |
1785 | type, and n2 is the number of bytes. */ | |
1786 | if (n3 == 0 && n2 > 0) | |
1787 | return debug_make_float_type (dhandle, n2); | |
1788 | ||
1789 | /* If the upper bound is -1, this is an unsigned int. */ | |
1790 | if (n2 == 0 && n3 == -1) | |
1791 | { | |
1792 | /* When gcc is used with -gstabs, but not -gstabs+, it will emit | |
1793 | long long int:t6=r1;0;-1; | |
1794 | long long unsigned int:t7=r1;0;-1; | |
1795 | We hack here to handle this reasonably. */ | |
1796 | if (typename != NULL) | |
1797 | { | |
1798 | if (strcmp (typename, "long long int") == 0) | |
1799 | return debug_make_int_type (dhandle, 8, false); | |
1800 | else if (strcmp (typename, "long long unsigned int") == 0) | |
1801 | return debug_make_int_type (dhandle, 8, true); | |
1802 | } | |
1803 | /* FIXME: The size here really depends upon the target. */ | |
1804 | return debug_make_int_type (dhandle, 4, true); | |
1805 | } | |
1806 | ||
1807 | /* A range of 0 to 127 is char. */ | |
1808 | if (self_subrange && n2 == 0 && n3 == 127) | |
1809 | return debug_make_int_type (dhandle, 1, false); | |
1810 | ||
1811 | /* FIXME: gdb checks for the language CHILL here. */ | |
1812 | ||
1813 | if (n2 == 0) | |
1814 | { | |
1815 | if (n3 < 0) | |
1816 | return debug_make_int_type (dhandle, - n3, true); | |
1817 | else if (n3 == 0xff) | |
1818 | return debug_make_int_type (dhandle, 1, true); | |
1819 | else if (n3 == 0xffff) | |
1820 | return debug_make_int_type (dhandle, 2, true); | |
1821 | else if (n3 == 0xffffffff) | |
1822 | return debug_make_int_type (dhandle, 4, true); | |
1823 | #ifdef BFD64 | |
1824 | else if (n3 == ((((bfd_vma) 0xffffffff) << 32) | 0xffffffff)) | |
1825 | return debug_make_int_type (dhandle, 8, true); | |
1826 | #endif | |
1827 | } | |
1828 | else if (n3 == 0 | |
1829 | && n2 < 0 | |
1830 | && (self_subrange || n2 == -8)) | |
1831 | return debug_make_int_type (dhandle, - n2, true); | |
1832 | else if (n2 == - n3 - 1 || n2 == n3 + 1) | |
1833 | { | |
1834 | if (n3 == 0x7f) | |
1835 | return debug_make_int_type (dhandle, 1, false); | |
1836 | else if (n3 == 0x7fff) | |
1837 | return debug_make_int_type (dhandle, 2, false); | |
1838 | else if (n3 == 0x7fffffff) | |
1839 | return debug_make_int_type (dhandle, 4, false); | |
1840 | #ifdef BFD64 | |
1841 | else if (n3 == ((((bfd_vma) 0x7fffffff) << 32) | 0xffffffff)) | |
1842 | return debug_make_int_type (dhandle, 8, false); | |
1843 | #endif | |
1844 | } | |
1845 | } | |
1846 | ||
1847 | /* At this point I don't have the faintest idea how to deal with a | |
1848 | self_subrange type; I'm going to assume that this is used as an | |
1849 | idiom, and that all of them are special cases. So . . . */ | |
1850 | if (self_subrange) | |
1851 | { | |
1852 | bad_stab (orig); | |
1853 | return DEBUG_TYPE_NULL; | |
1854 | } | |
1855 | ||
1856 | index_type = stab_find_type (dhandle, info, rangenums); | |
1857 | if (index_type == DEBUG_TYPE_NULL) | |
1858 | { | |
1859 | /* Does this actually ever happen? Is that why we are worrying | |
1860 | about dealing with it rather than just calling error_type? */ | |
1861 | warn_stab (orig, _("missing index type")); | |
1862 | index_type = debug_make_int_type (dhandle, 4, false); | |
1863 | } | |
1864 | ||
1865 | return debug_make_range_type (dhandle, index_type, n2, n3); | |
1866 | } | |
1867 | ||
1868 | /* Sun's ACC uses a somewhat saner method for specifying the builtin | |
1869 | typedefs in every file (for int, long, etc): | |
1870 | ||
1871 | type = b <signed> <width>; <offset>; <nbits> | |
1872 | signed = u or s. Possible c in addition to u or s (for char?). | |
1873 | offset = offset from high order bit to start bit of type. | |
1874 | width is # bytes in object of this type, nbits is # bits in type. | |
1875 | ||
1876 | The width/offset stuff appears to be for small objects stored in | |
1877 | larger ones (e.g. `shorts' in `int' registers). We ignore it for now, | |
1878 | FIXME. */ | |
1879 | ||
1880 | static debug_type | |
1881 | parse_stab_sun_builtin_type (dhandle, pp) | |
1882 | PTR dhandle; | |
1883 | const char **pp; | |
1884 | { | |
1885 | const char *orig; | |
1886 | boolean unsignedp; | |
1887 | bfd_vma bits; | |
1888 | ||
1889 | orig = *pp; | |
1890 | ||
1891 | switch (**pp) | |
1892 | { | |
1893 | case 's': | |
1894 | unsignedp = false; | |
1895 | break; | |
1896 | case 'u': | |
1897 | unsignedp = true; | |
1898 | break; | |
1899 | default: | |
1900 | bad_stab (orig); | |
1901 | return DEBUG_TYPE_NULL; | |
1902 | } | |
1903 | ++*pp; | |
1904 | ||
1905 | /* For some odd reason, all forms of char put a c here. This is strange | |
1906 | because no other type has this honor. We can safely ignore this because | |
1907 | we actually determine 'char'acterness by the number of bits specified in | |
1908 | the descriptor. */ | |
1909 | if (**pp == 'c') | |
1910 | ++*pp; | |
1911 | ||
1912 | /* The first number appears to be the number of bytes occupied | |
1913 | by this type, except that unsigned short is 4 instead of 2. | |
1914 | Since this information is redundant with the third number, | |
1915 | we will ignore it. */ | |
1916 | (void) parse_number (pp, (boolean *) NULL); | |
1917 | if (**pp != ';') | |
1918 | { | |
1919 | bad_stab (orig); | |
1920 | return DEBUG_TYPE_NULL; | |
1921 | } | |
1922 | ++*pp; | |
1923 | ||
1924 | /* The second number is always 0, so ignore it too. */ | |
1925 | (void) parse_number (pp, (boolean *) NULL); | |
1926 | if (**pp != ';') | |
1927 | { | |
1928 | bad_stab (orig); | |
1929 | return DEBUG_TYPE_NULL; | |
1930 | } | |
1931 | ++*pp; | |
1932 | ||
1933 | /* The third number is the number of bits for this type. */ | |
1934 | bits = parse_number (pp, (boolean *) NULL); | |
1935 | ||
1936 | /* The type *should* end with a semicolon. If it are embedded | |
1937 | in a larger type the semicolon may be the only way to know where | |
1938 | the type ends. If this type is at the end of the stabstring we | |
1939 | can deal with the omitted semicolon (but we don't have to like | |
1940 | it). Don't bother to complain(), Sun's compiler omits the semicolon | |
1941 | for "void". */ | |
1942 | if (**pp == ';') | |
1943 | ++*pp; | |
1944 | ||
1945 | if (bits == 0) | |
1946 | return debug_make_void_type (dhandle); | |
1947 | ||
1948 | return debug_make_int_type (dhandle, bits / 8, unsignedp); | |
1949 | } | |
1950 | ||
1951 | /* Parse a builtin floating type generated by the Sun compiler. */ | |
1952 | ||
1953 | static debug_type | |
1954 | parse_stab_sun_floating_type (dhandle, pp) | |
1955 | PTR dhandle; | |
1956 | const char **pp; | |
1957 | { | |
1958 | const char *orig; | |
1959 | bfd_vma details; | |
1960 | bfd_vma bytes; | |
1961 | ||
1962 | orig = *pp; | |
1963 | ||
1964 | /* The first number has more details about the type, for example | |
1965 | FN_COMPLEX. */ | |
1966 | details = parse_number (pp, (boolean *) NULL); | |
1967 | if (**pp != ';') | |
1968 | { | |
1969 | bad_stab (orig); | |
1970 | return DEBUG_TYPE_NULL; | |
1971 | } | |
1972 | ||
1973 | /* The second number is the number of bytes occupied by this type */ | |
1974 | bytes = parse_number (pp, (boolean *) NULL); | |
1975 | if (**pp != ';') | |
1976 | { | |
1977 | bad_stab (orig); | |
1978 | return DEBUG_TYPE_NULL; | |
1979 | } | |
1980 | ||
1981 | if (details == NF_COMPLEX | |
1982 | || details == NF_COMPLEX16 | |
1983 | || details == NF_COMPLEX32) | |
1984 | return debug_make_complex_type (dhandle, bytes); | |
1985 | ||
1986 | return debug_make_float_type (dhandle, bytes); | |
1987 | } | |
1988 | ||
1989 | /* Handle an enum type. */ | |
1990 | ||
1991 | static debug_type | |
1992 | parse_stab_enum_type (dhandle, pp) | |
1993 | PTR dhandle; | |
1994 | const char **pp; | |
1995 | { | |
1996 | const char *orig; | |
1997 | const char **names; | |
1998 | bfd_signed_vma *values; | |
1999 | unsigned int n; | |
2000 | unsigned int alloc; | |
2001 | ||
2002 | orig = *pp; | |
2003 | ||
2004 | /* FIXME: gdb checks os9k_stabs here. */ | |
2005 | ||
2006 | /* The aix4 compiler emits an extra field before the enum members; | |
2007 | my guess is it's a type of some sort. Just ignore it. */ | |
2008 | if (**pp == '-') | |
2009 | { | |
2010 | while (**pp != ':') | |
2011 | ++*pp; | |
2012 | ++*pp; | |
2013 | } | |
2014 | ||
2015 | /* Read the value-names and their values. | |
2016 | The input syntax is NAME:VALUE,NAME:VALUE, and so on. | |
2017 | A semicolon or comma instead of a NAME means the end. */ | |
2018 | alloc = 10; | |
2019 | names = (const char **) xmalloc (alloc * sizeof *names); | |
2020 | values = (bfd_signed_vma *) xmalloc (alloc * sizeof *values); | |
2021 | n = 0; | |
2022 | while (**pp != '\0' && **pp != ';' && **pp != ',') | |
2023 | { | |
2024 | const char *p; | |
2025 | char *name; | |
2026 | bfd_signed_vma val; | |
2027 | ||
2028 | p = *pp; | |
2029 | while (*p != ':') | |
2030 | ++p; | |
2031 | ||
2032 | name = savestring (*pp, p - *pp); | |
2033 | ||
2034 | *pp = p + 1; | |
2035 | val = (bfd_signed_vma) parse_number (pp, (boolean *) NULL); | |
2036 | if (**pp != ',') | |
2037 | { | |
2038 | bad_stab (orig); | |
2039 | return DEBUG_TYPE_NULL; | |
2040 | } | |
2041 | ++*pp; | |
2042 | ||
2043 | if (n + 1 >= alloc) | |
2044 | { | |
2045 | alloc += 10; | |
2046 | names = ((const char **) | |
2047 | xrealloc ((PTR) names, alloc * sizeof *names)); | |
2048 | values = ((bfd_signed_vma *) | |
2049 | xrealloc ((PTR) values, alloc * sizeof *values)); | |
2050 | } | |
2051 | ||
2052 | names[n] = name; | |
2053 | values[n] = val; | |
2054 | ++n; | |
2055 | } | |
2056 | ||
2057 | names[n] = NULL; | |
2058 | values[n] = 0; | |
2059 | ||
2060 | if (**pp == ';') | |
2061 | ++*pp; | |
2062 | ||
2063 | return debug_make_enum_type (dhandle, names, values); | |
2064 | } | |
2065 | ||
2066 | /* Read the description of a structure (or union type) and return an object | |
2067 | describing the type. | |
2068 | ||
2069 | PP points to a character pointer that points to the next unconsumed token | |
2070 | in the the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;", | |
2071 | *PP will point to "4a:1,0,32;;". */ | |
2072 | ||
2073 | static debug_type | |
2074 | parse_stab_struct_type (dhandle, info, tagname, pp, structp, typenums) | |
2075 | PTR dhandle; | |
2076 | struct stab_handle *info; | |
2077 | const char *tagname; | |
2078 | const char **pp; | |
2079 | boolean structp; | |
2080 | const int *typenums; | |
2081 | { | |
2082 | const char *orig; | |
2083 | bfd_vma size; | |
2084 | debug_baseclass *baseclasses; | |
2085 | debug_field *fields; | |
2086 | boolean statics; | |
2087 | debug_method *methods; | |
2088 | debug_type vptrbase; | |
2089 | boolean ownvptr; | |
2090 | ||
2091 | orig = *pp; | |
2092 | ||
2093 | /* Get the size. */ | |
2094 | size = parse_number (pp, (boolean *) NULL); | |
2095 | ||
2096 | /* Get the other information. */ | |
2097 | if (! parse_stab_baseclasses (dhandle, info, pp, &baseclasses) | |
2098 | || ! parse_stab_struct_fields (dhandle, info, pp, &fields, &statics) | |
2099 | || ! parse_stab_members (dhandle, info, tagname, pp, typenums, &methods) | |
2100 | || ! parse_stab_tilde_field (dhandle, info, pp, typenums, &vptrbase, | |
2101 | &ownvptr)) | |
2102 | return DEBUG_TYPE_NULL; | |
2103 | ||
2104 | if (! statics | |
2105 | && baseclasses == NULL | |
2106 | && methods == NULL | |
2107 | && vptrbase == DEBUG_TYPE_NULL | |
2108 | && ! ownvptr) | |
2109 | return debug_make_struct_type (dhandle, structp, size, fields); | |
2110 | ||
2111 | return debug_make_object_type (dhandle, structp, size, fields, baseclasses, | |
2112 | methods, vptrbase, ownvptr); | |
2113 | } | |
2114 | ||
2115 | /* The stabs for C++ derived classes contain baseclass information which | |
2116 | is marked by a '!' character after the total size. This function is | |
2117 | called when we encounter the baseclass marker, and slurps up all the | |
2118 | baseclass information. | |
2119 | ||
2120 | Immediately following the '!' marker is the number of base classes that | |
2121 | the class is derived from, followed by information for each base class. | |
2122 | For each base class, there are two visibility specifiers, a bit offset | |
2123 | to the base class information within the derived class, a reference to | |
2124 | the type for the base class, and a terminating semicolon. | |
2125 | ||
2126 | A typical example, with two base classes, would be "!2,020,19;0264,21;". | |
2127 | ^^ ^ ^ ^ ^ ^ ^ | |
2128 | Baseclass information marker __________________|| | | | | | | | |
2129 | Number of baseclasses __________________________| | | | | | | | |
2130 | Visibility specifiers (2) ________________________| | | | | | | |
2131 | Offset in bits from start of class _________________| | | | | | |
2132 | Type number for base class ___________________________| | | | | |
2133 | Visibility specifiers (2) _______________________________| | | | |
2134 | Offset in bits from start of class ________________________| | | |
2135 | Type number of base class ____________________________________| | |
2136 | ||
2137 | Return true for success, false for failure. */ | |
2138 | ||
2139 | static boolean | |
2140 | parse_stab_baseclasses (dhandle, info, pp, retp) | |
2141 | PTR dhandle; | |
2142 | struct stab_handle *info; | |
2143 | const char **pp; | |
2144 | debug_baseclass **retp; | |
2145 | { | |
2146 | const char *orig; | |
2147 | unsigned int c, i; | |
2148 | debug_baseclass *classes; | |
2149 | ||
2150 | *retp = NULL; | |
2151 | ||
2152 | orig = *pp; | |
2153 | ||
2154 | if (**pp != '!') | |
2155 | { | |
2156 | /* No base classes. */ | |
2157 | return true; | |
2158 | } | |
2159 | ++*pp; | |
2160 | ||
2161 | c = (unsigned int) parse_number (pp, (boolean *) NULL); | |
2162 | ||
2163 | if (**pp != ',') | |
2164 | { | |
2165 | bad_stab (orig); | |
2166 | return false; | |
2167 | } | |
2168 | ++*pp; | |
2169 | ||
2170 | classes = (debug_baseclass *) xmalloc ((c + 1) * sizeof (**retp)); | |
2171 | ||
2172 | for (i = 0; i < c; i++) | |
2173 | { | |
2174 | boolean virtual; | |
2175 | enum debug_visibility visibility; | |
2176 | bfd_vma bitpos; | |
2177 | debug_type type; | |
2178 | ||
2179 | switch (**pp) | |
2180 | { | |
2181 | case '0': | |
2182 | virtual = false; | |
2183 | break; | |
2184 | case '1': | |
2185 | virtual = true; | |
2186 | break; | |
2187 | default: | |
2188 | warn_stab (orig, _("unknown virtual character for baseclass")); | |
2189 | virtual = false; | |
2190 | break; | |
2191 | } | |
2192 | ++*pp; | |
2193 | ||
2194 | switch (**pp) | |
2195 | { | |
2196 | case '0': | |
2197 | visibility = DEBUG_VISIBILITY_PRIVATE; | |
2198 | break; | |
2199 | case '1': | |
2200 | visibility = DEBUG_VISIBILITY_PROTECTED; | |
2201 | break; | |
2202 | case '2': | |
2203 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2204 | break; | |
2205 | default: | |
2206 | warn_stab (orig, _("unknown visibility character for baseclass")); | |
2207 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2208 | break; | |
2209 | } | |
2210 | ++*pp; | |
2211 | ||
2212 | /* The remaining value is the bit offset of the portion of the | |
2213 | object corresponding to this baseclass. Always zero in the | |
2214 | absence of multiple inheritance. */ | |
2215 | bitpos = parse_number (pp, (boolean *) NULL); | |
2216 | if (**pp != ',') | |
2217 | { | |
2218 | bad_stab (orig); | |
2219 | return false; | |
2220 | } | |
2221 | ++*pp; | |
2222 | ||
2223 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
2224 | (debug_type **) NULL); | |
2225 | if (type == DEBUG_TYPE_NULL) | |
2226 | return false; | |
2227 | ||
2228 | classes[i] = debug_make_baseclass (dhandle, type, bitpos, virtual, | |
2229 | visibility); | |
2230 | if (classes[i] == DEBUG_BASECLASS_NULL) | |
2231 | return false; | |
2232 | ||
2233 | if (**pp != ';') | |
2234 | return false; | |
2235 | ++*pp; | |
2236 | } | |
2237 | ||
2238 | classes[i] = DEBUG_BASECLASS_NULL; | |
2239 | ||
2240 | *retp = classes; | |
2241 | ||
2242 | return true; | |
2243 | } | |
2244 | ||
2245 | /* Read struct or class data fields. They have the form: | |
2246 | ||
2247 | NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ; | |
2248 | ||
2249 | At the end, we see a semicolon instead of a field. | |
2250 | ||
2251 | In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for | |
2252 | a static field. | |
2253 | ||
2254 | The optional VISIBILITY is one of: | |
2255 | ||
2256 | '/0' (VISIBILITY_PRIVATE) | |
2257 | '/1' (VISIBILITY_PROTECTED) | |
2258 | '/2' (VISIBILITY_PUBLIC) | |
2259 | '/9' (VISIBILITY_IGNORE) | |
2260 | ||
2261 | or nothing, for C style fields with public visibility. | |
2262 | ||
2263 | Returns 1 for success, 0 for failure. */ | |
2264 | ||
2265 | static boolean | |
2266 | parse_stab_struct_fields (dhandle, info, pp, retp, staticsp) | |
2267 | PTR dhandle; | |
2268 | struct stab_handle *info; | |
2269 | const char **pp; | |
2270 | debug_field **retp; | |
2271 | boolean *staticsp; | |
2272 | { | |
2273 | const char *orig; | |
2274 | const char *p; | |
2275 | debug_field *fields; | |
2276 | unsigned int c; | |
2277 | unsigned int alloc; | |
2278 | ||
2279 | *retp = NULL; | |
2280 | *staticsp = false; | |
2281 | ||
2282 | orig = *pp; | |
2283 | ||
2284 | c = 0; | |
2285 | alloc = 10; | |
2286 | fields = (debug_field *) xmalloc (alloc * sizeof *fields); | |
2287 | while (**pp != ';') | |
2288 | { | |
2289 | /* FIXME: gdb checks os9k_stabs here. */ | |
2290 | ||
2291 | p = *pp; | |
2292 | ||
2293 | /* Add 1 to c to leave room for NULL pointer at end. */ | |
2294 | if (c + 1 >= alloc) | |
2295 | { | |
2296 | alloc += 10; | |
2297 | fields = ((debug_field *) | |
2298 | xrealloc ((PTR) fields, alloc * sizeof *fields)); | |
2299 | } | |
2300 | ||
2301 | /* If it starts with CPLUS_MARKER it is a special abbreviation, | |
2302 | unless the CPLUS_MARKER is followed by an underscore, in | |
2303 | which case it is just the name of an anonymous type, which we | |
2304 | should handle like any other type name. We accept either '$' | |
2305 | or '.', because a field name can never contain one of these | |
2306 | characters except as a CPLUS_MARKER. */ | |
2307 | ||
2308 | if ((*p == '$' || *p == '.') && p[1] != '_') | |
2309 | { | |
2310 | ++*pp; | |
2311 | if (! parse_stab_cpp_abbrev (dhandle, info, pp, fields + c)) | |
2312 | return false; | |
2313 | ++c; | |
2314 | continue; | |
2315 | } | |
2316 | ||
2317 | /* Look for the ':' that separates the field name from the field | |
2318 | values. Data members are delimited by a single ':', while member | |
2319 | functions are delimited by a pair of ':'s. When we hit the member | |
2320 | functions (if any), terminate scan loop and return. */ | |
2321 | ||
2322 | p = strchr (p, ':'); | |
2323 | if (p == NULL) | |
2324 | { | |
2325 | bad_stab (orig); | |
2326 | return false; | |
2327 | } | |
2328 | ||
2329 | if (p[1] == ':') | |
2330 | break; | |
2331 | ||
2332 | if (! parse_stab_one_struct_field (dhandle, info, pp, p, fields + c, | |
2333 | staticsp)) | |
2334 | return false; | |
2335 | ||
2336 | ++c; | |
2337 | } | |
2338 | ||
2339 | fields[c] = DEBUG_FIELD_NULL; | |
2340 | ||
2341 | *retp = fields; | |
2342 | ||
2343 | return true; | |
2344 | } | |
2345 | ||
2346 | /* Special GNU C++ name. */ | |
2347 | ||
2348 | static boolean | |
2349 | parse_stab_cpp_abbrev (dhandle, info, pp, retp) | |
2350 | PTR dhandle; | |
2351 | struct stab_handle *info; | |
2352 | const char **pp; | |
2353 | debug_field *retp; | |
2354 | { | |
2355 | const char *orig; | |
2356 | int cpp_abbrev; | |
2357 | debug_type context; | |
2358 | const char *name; | |
2359 | const char *typename; | |
2360 | debug_type type; | |
2361 | bfd_vma bitpos; | |
2362 | ||
2363 | *retp = DEBUG_FIELD_NULL; | |
2364 | ||
2365 | orig = *pp; | |
2366 | ||
2367 | if (**pp != 'v') | |
2368 | { | |
2369 | bad_stab (*pp); | |
2370 | return false; | |
2371 | } | |
2372 | ++*pp; | |
2373 | ||
2374 | cpp_abbrev = **pp; | |
2375 | ++*pp; | |
2376 | ||
2377 | /* At this point, *pp points to something like "22:23=*22...", where | |
2378 | the type number before the ':' is the "context" and everything | |
2379 | after is a regular type definition. Lookup the type, find it's | |
2380 | name, and construct the field name. */ | |
2381 | ||
2382 | context = parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
2383 | (debug_type **) NULL); | |
2384 | if (context == DEBUG_TYPE_NULL) | |
2385 | return false; | |
2386 | ||
2387 | switch (cpp_abbrev) | |
2388 | { | |
2389 | case 'f': | |
2390 | /* $vf -- a virtual function table pointer. */ | |
2391 | name = "_vptr$"; | |
2392 | break; | |
2393 | case 'b': | |
2394 | /* $vb -- a virtual bsomethingorother */ | |
2395 | typename = debug_get_type_name (dhandle, context); | |
2396 | if (typename == NULL) | |
2397 | { | |
2398 | warn_stab (orig, _("unnamed $vb type")); | |
2399 | typename = "FOO"; | |
2400 | } | |
2401 | name = concat ("_vb$", typename, (const char *) NULL); | |
2402 | break; | |
2403 | default: | |
2404 | warn_stab (orig, _("unrecognized C++ abbreviation")); | |
2405 | name = "INVALID_CPLUSPLUS_ABBREV"; | |
2406 | break; | |
2407 | } | |
2408 | ||
2409 | if (**pp != ':') | |
2410 | { | |
2411 | bad_stab (orig); | |
2412 | return false; | |
2413 | } | |
2414 | ++*pp; | |
2415 | ||
2416 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
2417 | (debug_type **) NULL); | |
2418 | if (**pp != ',') | |
2419 | { | |
2420 | bad_stab (orig); | |
2421 | return false; | |
2422 | } | |
2423 | ++*pp; | |
2424 | ||
2425 | bitpos = parse_number (pp, (boolean *) NULL); | |
2426 | if (**pp != ';') | |
2427 | { | |
2428 | bad_stab (orig); | |
2429 | return false; | |
2430 | } | |
2431 | ++*pp; | |
2432 | ||
2433 | *retp = debug_make_field (dhandle, name, type, bitpos, 0, | |
2434 | DEBUG_VISIBILITY_PRIVATE); | |
2435 | if (*retp == DEBUG_FIELD_NULL) | |
2436 | return false; | |
2437 | ||
2438 | return true; | |
2439 | } | |
2440 | ||
2441 | /* Parse a single field in a struct or union. */ | |
2442 | ||
2443 | static boolean | |
2444 | parse_stab_one_struct_field (dhandle, info, pp, p, retp, staticsp) | |
2445 | PTR dhandle; | |
2446 | struct stab_handle *info; | |
2447 | const char **pp; | |
2448 | const char *p; | |
2449 | debug_field *retp; | |
2450 | boolean *staticsp; | |
2451 | { | |
2452 | const char *orig; | |
2453 | char *name; | |
2454 | enum debug_visibility visibility; | |
2455 | debug_type type; | |
2456 | bfd_vma bitpos; | |
2457 | bfd_vma bitsize; | |
2458 | ||
2459 | orig = *pp; | |
2460 | ||
2461 | /* FIXME: gdb checks ARM_DEMANGLING here. */ | |
2462 | ||
2463 | name = savestring (*pp, p - *pp); | |
2464 | ||
2465 | *pp = p + 1; | |
2466 | ||
2467 | if (**pp != '/') | |
2468 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2469 | else | |
2470 | { | |
2471 | ++*pp; | |
2472 | switch (**pp) | |
2473 | { | |
2474 | case '0': | |
2475 | visibility = DEBUG_VISIBILITY_PRIVATE; | |
2476 | break; | |
2477 | case '1': | |
2478 | visibility = DEBUG_VISIBILITY_PROTECTED; | |
2479 | break; | |
2480 | case '2': | |
2481 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2482 | break; | |
2483 | default: | |
2484 | warn_stab (orig, _("unknown visibility character for field")); | |
2485 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2486 | break; | |
2487 | } | |
2488 | ++*pp; | |
2489 | } | |
2490 | ||
2491 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
2492 | (debug_type **) NULL); | |
2493 | if (type == DEBUG_TYPE_NULL) | |
2494 | return false; | |
2495 | ||
2496 | if (**pp == ':') | |
2497 | { | |
2498 | char *varname; | |
2499 | ||
2500 | /* This is a static class member. */ | |
2501 | ++*pp; | |
2502 | p = strchr (*pp, ';'); | |
2503 | if (p == NULL) | |
2504 | { | |
2505 | bad_stab (orig); | |
2506 | return false; | |
2507 | } | |
2508 | ||
2509 | varname = savestring (*pp, p - *pp); | |
2510 | ||
2511 | *pp = p + 1; | |
2512 | ||
2513 | *retp = debug_make_static_member (dhandle, name, type, varname, | |
2514 | visibility); | |
2515 | *staticsp = true; | |
2516 | ||
2517 | return true; | |
2518 | } | |
2519 | ||
2520 | if (**pp != ',') | |
2521 | { | |
2522 | bad_stab (orig); | |
2523 | return false; | |
2524 | } | |
2525 | ++*pp; | |
2526 | ||
2527 | bitpos = parse_number (pp, (boolean *) NULL); | |
2528 | if (**pp != ',') | |
2529 | { | |
2530 | bad_stab (orig); | |
2531 | return false; | |
2532 | } | |
2533 | ++*pp; | |
2534 | ||
2535 | bitsize = parse_number (pp, (boolean *) NULL); | |
2536 | if (**pp != ';') | |
2537 | { | |
2538 | bad_stab (orig); | |
2539 | return false; | |
2540 | } | |
2541 | ++*pp; | |
2542 | ||
2543 | if (bitpos == 0 && bitsize == 0) | |
2544 | { | |
2545 | /* This can happen in two cases: (1) at least for gcc 2.4.5 or | |
2546 | so, it is a field which has been optimized out. The correct | |
2547 | stab for this case is to use VISIBILITY_IGNORE, but that is a | |
2548 | recent invention. (2) It is a 0-size array. For example | |
2549 | union { int num; char str[0]; } foo. Printing "<no value>" | |
2550 | for str in "p foo" is OK, since foo.str (and thus foo.str[3]) | |
2551 | will continue to work, and a 0-size array as a whole doesn't | |
2552 | have any contents to print. | |
2553 | ||
2554 | I suspect this probably could also happen with gcc -gstabs | |
2555 | (not -gstabs+) for static fields, and perhaps other C++ | |
2556 | extensions. Hopefully few people use -gstabs with gdb, since | |
2557 | it is intended for dbx compatibility. */ | |
2558 | visibility = DEBUG_VISIBILITY_IGNORE; | |
2559 | } | |
2560 | ||
2561 | /* FIXME: gdb does some stuff here to mark fields as unpacked. */ | |
2562 | ||
2563 | *retp = debug_make_field (dhandle, name, type, bitpos, bitsize, visibility); | |
2564 | ||
2565 | return true; | |
2566 | } | |
2567 | ||
2568 | /* Read member function stabs info for C++ classes. The form of each member | |
2569 | function data is: | |
2570 | ||
2571 | NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ; | |
2572 | ||
2573 | An example with two member functions is: | |
2574 | ||
2575 | afunc1::20=##15;:i;2A.;afunc2::20:i;2A.; | |
2576 | ||
2577 | For the case of overloaded operators, the format is op$::*.funcs, where | |
2578 | $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator | |
2579 | name (such as `+=') and `.' marks the end of the operator name. */ | |
2580 | ||
2581 | static boolean | |
2582 | parse_stab_members (dhandle, info, tagname, pp, typenums, retp) | |
2583 | PTR dhandle; | |
2584 | struct stab_handle *info; | |
2585 | const char *tagname; | |
2586 | const char **pp; | |
2587 | const int *typenums; | |
2588 | debug_method **retp; | |
2589 | { | |
2590 | const char *orig; | |
2591 | debug_method *methods; | |
2592 | unsigned int c; | |
2593 | unsigned int alloc; | |
2594 | ||
2595 | *retp = NULL; | |
2596 | ||
2597 | orig = *pp; | |
2598 | ||
2599 | alloc = 0; | |
2600 | methods = NULL; | |
2601 | c = 0; | |
2602 | ||
2603 | while (**pp != ';') | |
2604 | { | |
2605 | const char *p; | |
2606 | char *name; | |
2607 | debug_method_variant *variants; | |
2608 | unsigned int cvars; | |
2609 | unsigned int allocvars; | |
2610 | debug_type look_ahead_type; | |
2611 | ||
2612 | p = strchr (*pp, ':'); | |
2613 | if (p == NULL || p[1] != ':') | |
2614 | break; | |
2615 | ||
2616 | /* FIXME: Some systems use something other than '$' here. */ | |
2617 | if ((*pp)[0] != 'o' || (*pp)[1] != 'p' || (*pp)[2] != '$') | |
2618 | { | |
2619 | name = savestring (*pp, p - *pp); | |
2620 | *pp = p + 2; | |
2621 | } | |
2622 | else | |
2623 | { | |
2624 | /* This is a completely wierd case. In order to stuff in the | |
2625 | names that might contain colons (the usual name delimiter), | |
2626 | Mike Tiemann defined a different name format which is | |
2627 | signalled if the identifier is "op$". In that case, the | |
2628 | format is "op$::XXXX." where XXXX is the name. This is | |
2629 | used for names like "+" or "=". YUUUUUUUK! FIXME! */ | |
2630 | *pp = p + 2; | |
2631 | for (p = *pp; *p != '.' && *p != '\0'; p++) | |
2632 | ; | |
2633 | if (*p != '.') | |
2634 | { | |
2635 | bad_stab (orig); | |
2636 | return false; | |
2637 | } | |
2638 | name = savestring (*pp, p - *pp); | |
2639 | *pp = p + 1; | |
2640 | } | |
2641 | ||
2642 | allocvars = 10; | |
2643 | variants = ((debug_method_variant *) | |
2644 | xmalloc (allocvars * sizeof *variants)); | |
2645 | cvars = 0; | |
2646 | ||
2647 | look_ahead_type = DEBUG_TYPE_NULL; | |
2648 | ||
2649 | do | |
2650 | { | |
2651 | debug_type type; | |
2652 | boolean stub; | |
2653 | char *argtypes; | |
2654 | enum debug_visibility visibility; | |
2655 | boolean constp, volatilep, staticp; | |
2656 | bfd_vma voffset; | |
2657 | debug_type context; | |
2658 | const char *physname; | |
2659 | boolean varargs; | |
2660 | ||
2661 | if (look_ahead_type != DEBUG_TYPE_NULL) | |
2662 | { | |
2663 | /* g++ version 1 kludge */ | |
2664 | type = look_ahead_type; | |
2665 | look_ahead_type = DEBUG_TYPE_NULL; | |
2666 | } | |
2667 | else | |
2668 | { | |
2669 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
2670 | (debug_type **) NULL); | |
2671 | if (type == DEBUG_TYPE_NULL) | |
2672 | return false; | |
2673 | if (**pp != ':') | |
2674 | { | |
2675 | bad_stab (orig); | |
2676 | return false; | |
2677 | } | |
2678 | } | |
2679 | ||
2680 | ++*pp; | |
2681 | p = strchr (*pp, ';'); | |
2682 | if (p == NULL) | |
2683 | { | |
2684 | bad_stab (orig); | |
2685 | return false; | |
2686 | } | |
2687 | ||
2688 | stub = false; | |
2689 | if (debug_get_type_kind (dhandle, type) == DEBUG_KIND_METHOD | |
2690 | && debug_get_parameter_types (dhandle, type, &varargs) == NULL) | |
2691 | stub = true; | |
2692 | ||
2693 | argtypes = savestring (*pp, p - *pp); | |
2694 | *pp = p + 1; | |
2695 | ||
2696 | switch (**pp) | |
2697 | { | |
2698 | case '0': | |
2699 | visibility = DEBUG_VISIBILITY_PRIVATE; | |
2700 | break; | |
2701 | case '1': | |
2702 | visibility = DEBUG_VISIBILITY_PROTECTED; | |
2703 | break; | |
2704 | default: | |
2705 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2706 | break; | |
2707 | } | |
2708 | ++*pp; | |
2709 | ||
2710 | constp = false; | |
2711 | volatilep = false; | |
2712 | switch (**pp) | |
2713 | { | |
2714 | case 'A': | |
2715 | /* Normal function. */ | |
2716 | ++*pp; | |
2717 | break; | |
2718 | case 'B': | |
2719 | /* const member function. */ | |
2720 | constp = true; | |
2721 | ++*pp; | |
2722 | break; | |
2723 | case 'C': | |
2724 | /* volatile member function. */ | |
2725 | volatilep = true; | |
2726 | ++*pp; | |
2727 | break; | |
2728 | case 'D': | |
2729 | /* const volatile member function. */ | |
2730 | constp = true; | |
2731 | volatilep = true; | |
2732 | ++*pp; | |
2733 | break; | |
2734 | case '*': | |
2735 | case '?': | |
2736 | case '.': | |
2737 | /* File compiled with g++ version 1; no information. */ | |
2738 | break; | |
2739 | default: | |
2740 | warn_stab (orig, _("const/volatile indicator missing")); | |
2741 | break; | |
2742 | } | |
2743 | ||
2744 | staticp = false; | |
2745 | switch (**pp) | |
2746 | { | |
2747 | case '*': | |
2748 | /* virtual member function, followed by index. The sign | |
2749 | bit is supposedly set to distinguish | |
2750 | pointers-to-methods from virtual function indicies. */ | |
2751 | ++*pp; | |
2752 | voffset = parse_number (pp, (boolean *) NULL); | |
2753 | if (**pp != ';') | |
2754 | { | |
2755 | bad_stab (orig); | |
2756 | return false; | |
2757 | } | |
2758 | ++*pp; | |
2759 | voffset &= 0x7fffffff; | |
2760 | ||
2761 | if (**pp == ';' || *pp == '\0') | |
2762 | { | |
2763 | /* Must be g++ version 1. */ | |
2764 | context = DEBUG_TYPE_NULL; | |
2765 | } | |
2766 | else | |
2767 | { | |
2768 | /* Figure out from whence this virtual function | |
2769 | came. It may belong to virtual function table of | |
2770 | one of its baseclasses. */ | |
2771 | look_ahead_type = parse_stab_type (dhandle, info, | |
2772 | (const char *) NULL, | |
2773 | pp, | |
2774 | (debug_type **) NULL); | |
2775 | if (**pp == ':') | |
2776 | { | |
2777 | /* g++ version 1 overloaded methods. */ | |
2778 | context = DEBUG_TYPE_NULL; | |
2779 | } | |
2780 | else | |
2781 | { | |
2782 | context = look_ahead_type; | |
2783 | look_ahead_type = DEBUG_TYPE_NULL; | |
2784 | if (**pp != ';') | |
2785 | { | |
2786 | bad_stab (orig); | |
2787 | return false; | |
2788 | } | |
2789 | ++*pp; | |
2790 | } | |
2791 | } | |
2792 | break; | |
2793 | ||
2794 | case '?': | |
2795 | /* static member function. */ | |
2796 | ++*pp; | |
2797 | staticp = true; | |
2798 | voffset = 0; | |
2799 | context = DEBUG_TYPE_NULL; | |
2800 | if (strncmp (argtypes, name, strlen (name)) != 0) | |
2801 | stub = true; | |
2802 | break; | |
2803 | ||
2804 | default: | |
2805 | warn_stab (orig, "member function type missing"); | |
2806 | voffset = 0; | |
2807 | context = DEBUG_TYPE_NULL; | |
2808 | break; | |
2809 | ||
2810 | case '.': | |
2811 | ++*pp; | |
2812 | voffset = 0; | |
2813 | context = DEBUG_TYPE_NULL; | |
2814 | break; | |
2815 | } | |
2816 | ||
2817 | /* If the type is not a stub, then the argtypes string is | |
2818 | the physical name of the function. Otherwise the | |
2819 | argtypes string is the mangled form of the argument | |
2820 | types, and the full type and the physical name must be | |
2821 | extracted from them. */ | |
2822 | if (! stub) | |
2823 | physname = argtypes; | |
2824 | else | |
2825 | { | |
2826 | debug_type class_type, return_type; | |
2827 | ||
2828 | class_type = stab_find_type (dhandle, info, typenums); | |
2829 | if (class_type == DEBUG_TYPE_NULL) | |
2830 | return false; | |
2831 | return_type = debug_get_return_type (dhandle, type); | |
2832 | if (return_type == DEBUG_TYPE_NULL) | |
2833 | { | |
2834 | bad_stab (orig); | |
2835 | return false; | |
2836 | } | |
2837 | type = parse_stab_argtypes (dhandle, info, class_type, name, | |
2838 | tagname, return_type, argtypes, | |
2839 | constp, volatilep, &physname); | |
2840 | if (type == DEBUG_TYPE_NULL) | |
2841 | return false; | |
2842 | } | |
2843 | ||
2844 | if (cvars + 1 >= allocvars) | |
2845 | { | |
2846 | allocvars += 10; | |
2847 | variants = ((debug_method_variant *) | |
2848 | xrealloc ((PTR) variants, | |
2849 | allocvars * sizeof *variants)); | |
2850 | } | |
2851 | ||
2852 | if (! staticp) | |
2853 | variants[cvars] = debug_make_method_variant (dhandle, physname, | |
2854 | type, visibility, | |
2855 | constp, volatilep, | |
2856 | voffset, context); | |
2857 | else | |
2858 | variants[cvars] = debug_make_static_method_variant (dhandle, | |
2859 | physname, | |
2860 | type, | |
2861 | visibility, | |
2862 | constp, | |
2863 | volatilep); | |
2864 | if (variants[cvars] == DEBUG_METHOD_VARIANT_NULL) | |
2865 | return false; | |
2866 | ||
2867 | ++cvars; | |
2868 | } | |
2869 | while (**pp != ';' && **pp != '\0'); | |
2870 | ||
2871 | variants[cvars] = DEBUG_METHOD_VARIANT_NULL; | |
2872 | ||
2873 | if (**pp != '\0') | |
2874 | ++*pp; | |
2875 | ||
2876 | if (c + 1 >= alloc) | |
2877 | { | |
2878 | alloc += 10; | |
2879 | methods = ((debug_method *) | |
2880 | xrealloc ((PTR) methods, alloc * sizeof *methods)); | |
2881 | } | |
2882 | ||
2883 | methods[c] = debug_make_method (dhandle, name, variants); | |
2884 | ||
2885 | ++c; | |
2886 | } | |
2887 | ||
2888 | if (methods != NULL) | |
2889 | methods[c] = DEBUG_METHOD_NULL; | |
2890 | ||
2891 | *retp = methods; | |
2892 | ||
2893 | return true; | |
2894 | } | |
2895 | ||
2896 | /* Parse a string representing argument types for a method. Stabs | |
2897 | tries to save space by packing argument types into a mangled | |
2898 | string. This string should give us enough information to extract | |
2899 | both argument types and the physical name of the function, given | |
2900 | the tag name. */ | |
2901 | ||
2902 | static debug_type | |
2903 | parse_stab_argtypes (dhandle, info, class_type, fieldname, tagname, | |
2904 | return_type, argtypes, constp, volatilep, pphysname) | |
2905 | PTR dhandle; | |
2906 | struct stab_handle *info; | |
2907 | debug_type class_type; | |
2908 | const char *fieldname; | |
2909 | const char *tagname; | |
2910 | debug_type return_type; | |
2911 | const char *argtypes; | |
2912 | boolean constp; | |
2913 | boolean volatilep; | |
2914 | const char **pphysname; | |
2915 | { | |
2916 | boolean is_full_physname_constructor; | |
2917 | boolean is_constructor; | |
2918 | boolean is_destructor; | |
2919 | debug_type *args; | |
2920 | boolean varargs; | |
2921 | ||
2922 | /* Constructors are sometimes handled specially. */ | |
2923 | is_full_physname_constructor = ((argtypes[0] == '_' | |
2924 | && argtypes[1] == '_' | |
2925 | && (isdigit ((unsigned char) argtypes[2]) | |
2926 | || argtypes[2] == 'Q' | |
2927 | || argtypes[2] == 't')) | |
2928 | || strncmp (argtypes, "__ct", 4) == 0); | |
2929 | ||
2930 | is_constructor = (is_full_physname_constructor | |
2931 | || (tagname != NULL | |
2932 | && strcmp (fieldname, tagname) == 0)); | |
2933 | is_destructor = ((argtypes[0] == '_' | |
2934 | && (argtypes[1] == '$' || argtypes[1] == '.') | |
2935 | && argtypes[2] == '_') | |
2936 | || strncmp (argtypes, "__dt", 4) == 0); | |
2937 | ||
2938 | if (is_destructor || is_full_physname_constructor) | |
2939 | *pphysname = argtypes; | |
2940 | else | |
2941 | { | |
2942 | unsigned int len; | |
2943 | const char *const_prefix; | |
2944 | const char *volatile_prefix; | |
2945 | char buf[20]; | |
2946 | unsigned int mangled_name_len; | |
2947 | char *physname; | |
2948 | ||
2949 | len = tagname == NULL ? 0 : strlen (tagname); | |
2950 | const_prefix = constp ? "C" : ""; | |
2951 | volatile_prefix = volatilep ? "V" : ""; | |
2952 | ||
2953 | if (len == 0) | |
2954 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
2955 | else if (tagname != NULL && strchr (tagname, '<') != NULL) | |
2956 | { | |
2957 | /* Template methods are fully mangled. */ | |
2958 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
2959 | tagname = NULL; | |
2960 | len = 0; | |
2961 | } | |
2962 | else | |
2963 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
2964 | ||
2965 | mangled_name_len = ((is_constructor ? 0 : strlen (fieldname)) | |
2966 | + strlen (buf) | |
2967 | + len | |
2968 | + strlen (argtypes) | |
2969 | + 1); | |
2970 | ||
2971 | if (fieldname[0] == 'o' | |
2972 | && fieldname[1] == 'p' | |
2973 | && (fieldname[2] == '$' || fieldname[2] == '.')) | |
2974 | { | |
2975 | const char *opname; | |
2976 | ||
2977 | opname = cplus_mangle_opname (fieldname + 3, 0); | |
2978 | if (opname == NULL) | |
2979 | { | |
2980 | fprintf (stderr, _("No mangling for \"%s\"\n"), fieldname); | |
2981 | return DEBUG_TYPE_NULL; | |
2982 | } | |
2983 | mangled_name_len += strlen (opname); | |
2984 | physname = (char *) xmalloc (mangled_name_len); | |
2985 | strncpy (physname, fieldname, 3); | |
2986 | strcpy (physname + 3, opname); | |
2987 | } | |
2988 | else | |
2989 | { | |
2990 | physname = (char *) xmalloc (mangled_name_len); | |
2991 | if (is_constructor) | |
2992 | physname[0] = '\0'; | |
2993 | else | |
2994 | strcpy (physname, fieldname); | |
2995 | } | |
2996 | ||
2997 | strcat (physname, buf); | |
2998 | if (tagname != NULL) | |
2999 | strcat (physname, tagname); | |
3000 | strcat (physname, argtypes); | |
3001 | ||
3002 | *pphysname = physname; | |
3003 | } | |
3004 | ||
3005 | if (*argtypes == '\0' || is_destructor) | |
3006 | { | |
3007 | args = (debug_type *) xmalloc (sizeof *args); | |
3008 | *args = NULL; | |
3009 | return debug_make_method_type (dhandle, return_type, class_type, args, | |
3010 | false); | |
3011 | } | |
3012 | ||
3013 | args = stab_demangle_argtypes (dhandle, info, *pphysname, &varargs); | |
3014 | if (args == NULL) | |
3015 | return DEBUG_TYPE_NULL; | |
3016 | ||
3017 | return debug_make_method_type (dhandle, return_type, class_type, args, | |
3018 | varargs); | |
3019 | } | |
3020 | ||
3021 | /* The tail end of stabs for C++ classes that contain a virtual function | |
3022 | pointer contains a tilde, a %, and a type number. | |
3023 | The type number refers to the base class (possibly this class itself) which | |
3024 | contains the vtable pointer for the current class. | |
3025 | ||
3026 | This function is called when we have parsed all the method declarations, | |
3027 | so we can look for the vptr base class info. */ | |
3028 | ||
3029 | static boolean | |
3030 | parse_stab_tilde_field (dhandle, info, pp, typenums, retvptrbase, retownvptr) | |
3031 | PTR dhandle; | |
3032 | struct stab_handle *info; | |
3033 | const char **pp; | |
3034 | const int *typenums; | |
3035 | debug_type *retvptrbase; | |
3036 | boolean *retownvptr; | |
3037 | { | |
3038 | const char *orig; | |
3039 | const char *hold; | |
3040 | int vtypenums[2]; | |
3041 | ||
3042 | *retvptrbase = DEBUG_TYPE_NULL; | |
3043 | *retownvptr = false; | |
3044 | ||
3045 | orig = *pp; | |
3046 | ||
3047 | /* If we are positioned at a ';', then skip it. */ | |
3048 | if (**pp == ';') | |
3049 | ++*pp; | |
3050 | ||
3051 | if (**pp != '~') | |
3052 | return true; | |
3053 | ||
3054 | ++*pp; | |
3055 | ||
3056 | if (**pp == '=' || **pp == '+' || **pp == '-') | |
3057 | { | |
3058 | /* Obsolete flags that used to indicate the presence of | |
3059 | constructors and/or destructors. */ | |
3060 | ++*pp; | |
3061 | } | |
3062 | ||
3063 | if (**pp != '%') | |
3064 | return true; | |
3065 | ||
3066 | ++*pp; | |
3067 | ||
3068 | hold = *pp; | |
3069 | ||
3070 | /* The next number is the type number of the base class (possibly | |
3071 | our own class) which supplies the vtable for this class. */ | |
3072 | if (! parse_stab_type_number (pp, vtypenums)) | |
3073 | return false; | |
3074 | ||
3075 | if (vtypenums[0] == typenums[0] | |
3076 | && vtypenums[1] == typenums[1]) | |
3077 | *retownvptr = true; | |
3078 | else | |
3079 | { | |
3080 | debug_type vtype; | |
3081 | const char *p; | |
3082 | ||
3083 | *pp = hold; | |
3084 | ||
3085 | vtype = parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
3086 | (debug_type **) NULL); | |
3087 | for (p = *pp; *p != ';' && *p != '\0'; p++) | |
3088 | ; | |
3089 | if (*p != ';') | |
3090 | { | |
3091 | bad_stab (orig); | |
3092 | return false; | |
3093 | } | |
3094 | ||
3095 | *retvptrbase = vtype; | |
3096 | ||
3097 | *pp = p + 1; | |
3098 | } | |
3099 | ||
3100 | return true; | |
3101 | } | |
3102 | ||
3103 | /* Read a definition of an array type. */ | |
3104 | ||
3105 | static debug_type | |
3106 | parse_stab_array_type (dhandle, info, pp, stringp) | |
3107 | PTR dhandle; | |
3108 | struct stab_handle *info; | |
3109 | const char **pp; | |
3110 | boolean stringp; | |
3111 | { | |
3112 | const char *orig; | |
3113 | const char *p; | |
3114 | int typenums[2]; | |
3115 | debug_type index_type; | |
3116 | boolean adjustable; | |
3117 | bfd_signed_vma lower, upper; | |
3118 | debug_type element_type; | |
3119 | ||
3120 | /* Format of an array type: | |
3121 | "ar<index type>;lower;upper;<array_contents_type>". | |
3122 | OS9000: "arlower,upper;<array_contents_type>". | |
3123 | ||
3124 | Fortran adjustable arrays use Adigits or Tdigits for lower or upper; | |
3125 | for these, produce a type like float[][]. */ | |
3126 | ||
3127 | orig = *pp; | |
3128 | ||
3129 | /* FIXME: gdb checks os9k_stabs here. */ | |
3130 | ||
3131 | /* If the index type is type 0, we take it as int. */ | |
3132 | p = *pp; | |
3133 | if (! parse_stab_type_number (&p, typenums)) | |
3134 | return false; | |
3135 | if (typenums[0] == 0 && typenums[1] == 0 && **pp != '=') | |
3136 | { | |
3137 | index_type = debug_find_named_type (dhandle, "int"); | |
3138 | if (index_type == DEBUG_TYPE_NULL) | |
3139 | { | |
3140 | index_type = debug_make_int_type (dhandle, 4, false); | |
3141 | if (index_type == DEBUG_TYPE_NULL) | |
3142 | return false; | |
3143 | } | |
3144 | *pp = p; | |
3145 | } | |
3146 | else | |
3147 | { | |
3148 | index_type = parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
3149 | (debug_type **) NULL); | |
3150 | } | |
3151 | ||
3152 | if (**pp != ';') | |
3153 | { | |
3154 | bad_stab (orig); | |
3155 | return DEBUG_TYPE_NULL; | |
3156 | } | |
3157 | ++*pp; | |
3158 | ||
3159 | adjustable = false; | |
3160 | ||
3161 | if (! isdigit ((unsigned char) **pp) && **pp != '-') | |
3162 | { | |
3163 | ++*pp; | |
3164 | adjustable = true; | |
3165 | } | |
3166 | ||
3167 | lower = (bfd_signed_vma) parse_number (pp, (boolean *) NULL); | |
3168 | if (**pp != ';') | |
3169 | { | |
3170 | bad_stab (orig); | |
3171 | return false; | |
3172 | } | |
3173 | ++*pp; | |
3174 | ||
3175 | if (! isdigit ((unsigned char) **pp) && **pp != '-') | |
3176 | { | |
3177 | ++*pp; | |
3178 | adjustable = true; | |
3179 | } | |
3180 | ||
3181 | upper = (bfd_signed_vma) parse_number (pp, (boolean *) NULL); | |
3182 | if (**pp != ';') | |
3183 | { | |
3184 | bad_stab (orig); | |
3185 | return false; | |
3186 | } | |
3187 | ++*pp; | |
3188 | ||
3189 | element_type = parse_stab_type (dhandle, info, (const char *) NULL, pp, | |
3190 | (debug_type **) NULL); | |
3191 | if (element_type == DEBUG_TYPE_NULL) | |
3192 | return false; | |
3193 | ||
3194 | if (adjustable) | |
3195 | { | |
3196 | lower = 0; | |
3197 | upper = -1; | |
3198 | } | |
3199 | ||
3200 | return debug_make_array_type (dhandle, element_type, index_type, lower, | |
3201 | upper, stringp); | |
3202 | } | |
3203 | ||
3204 | /* This struct holds information about files we have seen using | |
3205 | N_BINCL. */ | |
3206 | ||
3207 | struct bincl_file | |
3208 | { | |
3209 | /* The next N_BINCL file. */ | |
3210 | struct bincl_file *next; | |
3211 | /* The next N_BINCL on the stack. */ | |
3212 | struct bincl_file *next_stack; | |
3213 | /* The file name. */ | |
3214 | const char *name; | |
3215 | /* The hash value. */ | |
3216 | bfd_vma hash; | |
3217 | /* The file index. */ | |
3218 | unsigned int file; | |
3219 | /* The list of types defined in this file. */ | |
3220 | struct stab_types *file_types; | |
3221 | }; | |
3222 | ||
3223 | /* Start a new N_BINCL file, pushing it onto the stack. */ | |
3224 | ||
3225 | static void | |
3226 | push_bincl (info, name, hash) | |
3227 | struct stab_handle *info; | |
3228 | const char *name; | |
3229 | bfd_vma hash; | |
3230 | { | |
3231 | struct bincl_file *n; | |
3232 | ||
3233 | n = (struct bincl_file *) xmalloc (sizeof *n); | |
3234 | n->next = info->bincl_list; | |
3235 | n->next_stack = info->bincl_stack; | |
3236 | n->name = name; | |
3237 | n->hash = hash; | |
3238 | n->file = info->files; | |
3239 | n->file_types = NULL; | |
3240 | info->bincl_list = n; | |
3241 | info->bincl_stack = n; | |
3242 | ||
3243 | ++info->files; | |
3244 | info->file_types = ((struct stab_types **) | |
3245 | xrealloc ((PTR) info->file_types, | |
3246 | (info->files | |
3247 | * sizeof *info->file_types))); | |
3248 | info->file_types[n->file] = NULL; | |
3249 | } | |
3250 | ||
3251 | /* Finish an N_BINCL file, at an N_EINCL, popping the name off the | |
3252 | stack. */ | |
3253 | ||
3254 | static const char * | |
3255 | pop_bincl (info) | |
3256 | struct stab_handle *info; | |
3257 | { | |
3258 | struct bincl_file *o; | |
3259 | ||
3260 | o = info->bincl_stack; | |
3261 | if (o == NULL) | |
3262 | return info->main_filename; | |
3263 | info->bincl_stack = o->next_stack; | |
3264 | ||
3265 | o->file_types = info->file_types[o->file]; | |
3266 | ||
3267 | if (info->bincl_stack == NULL) | |
3268 | return info->main_filename; | |
3269 | return info->bincl_stack->name; | |
3270 | } | |
3271 | ||
3272 | /* Handle an N_EXCL: get the types from the corresponding N_BINCL. */ | |
3273 | ||
3274 | static boolean | |
3275 | find_excl (info, name, hash) | |
3276 | struct stab_handle *info; | |
3277 | const char *name; | |
3278 | bfd_vma hash; | |
3279 | { | |
3280 | struct bincl_file *l; | |
3281 | ||
3282 | ++info->files; | |
3283 | info->file_types = ((struct stab_types **) | |
3284 | xrealloc ((PTR) info->file_types, | |
3285 | (info->files | |
3286 | * sizeof *info->file_types))); | |
3287 | ||
3288 | for (l = info->bincl_list; l != NULL; l = l->next) | |
3289 | if (l->hash == hash && strcmp (l->name, name) == 0) | |
3290 | break; | |
3291 | if (l == NULL) | |
3292 | { | |
3293 | warn_stab (name, _("Undefined N_EXCL")); | |
3294 | info->file_types[info->files - 1] = NULL; | |
3295 | return true; | |
3296 | } | |
3297 | ||
3298 | info->file_types[info->files - 1] = l->file_types; | |
3299 | ||
3300 | return true; | |
3301 | } | |
3302 | ||
3303 | /* Handle a variable definition. gcc emits variable definitions for a | |
3304 | block before the N_LBRAC, so we must hold onto them until we see | |
3305 | it. The SunPRO compiler emits variable definitions after the | |
3306 | N_LBRAC, so we can call debug_record_variable immediately. */ | |
3307 | ||
3308 | static boolean | |
3309 | stab_record_variable (dhandle, info, name, type, kind, val) | |
3310 | PTR dhandle; | |
3311 | struct stab_handle *info; | |
3312 | const char *name; | |
3313 | debug_type type; | |
3314 | enum debug_var_kind kind; | |
3315 | bfd_vma val; | |
3316 | { | |
3317 | struct stab_pending_var *v; | |
3318 | ||
3319 | if ((kind == DEBUG_GLOBAL || kind == DEBUG_STATIC) | |
3320 | || ! info->within_function | |
3321 | || (info->gcc_compiled == 0 && info->n_opt_found)) | |
3322 | return debug_record_variable (dhandle, name, type, kind, val); | |
3323 | ||
3324 | v = (struct stab_pending_var *) xmalloc (sizeof *v); | |
3325 | memset (v, 0, sizeof *v); | |
3326 | ||
3327 | v->next = info->pending; | |
3328 | v->name = name; | |
3329 | v->type = type; | |
3330 | v->kind = kind; | |
3331 | v->val = val; | |
3332 | info->pending = v; | |
3333 | ||
3334 | return true; | |
3335 | } | |
3336 | ||
3337 | /* Emit pending variable definitions. This is called after we see the | |
3338 | N_LBRAC that starts the block. */ | |
3339 | ||
3340 | static boolean | |
3341 | stab_emit_pending_vars (dhandle, info) | |
3342 | PTR dhandle; | |
3343 | struct stab_handle *info; | |
3344 | { | |
3345 | struct stab_pending_var *v; | |
3346 | ||
3347 | v = info->pending; | |
3348 | while (v != NULL) | |
3349 | { | |
3350 | struct stab_pending_var *next; | |
3351 | ||
3352 | if (! debug_record_variable (dhandle, v->name, v->type, v->kind, v->val)) | |
3353 | return false; | |
3354 | ||
3355 | next = v->next; | |
3356 | free (v); | |
3357 | v = next; | |
3358 | } | |
3359 | ||
3360 | info->pending = NULL; | |
3361 | ||
3362 | return true; | |
3363 | } | |
3364 | ||
3365 | /* Find the slot for a type in the database. */ | |
3366 | ||
3367 | static debug_type * | |
3368 | stab_find_slot (info, typenums) | |
3369 | struct stab_handle *info; | |
3370 | const int *typenums; | |
3371 | { | |
3372 | int filenum; | |
3373 | int index; | |
3374 | struct stab_types **ps; | |
3375 | ||
3376 | filenum = typenums[0]; | |
3377 | index = typenums[1]; | |
3378 | ||
3379 | if (filenum < 0 || (unsigned int) filenum >= info->files) | |
3380 | { | |
3381 | fprintf (stderr, _("Type file number %d out of range\n"), filenum); | |
3382 | return NULL; | |
3383 | } | |
3384 | if (index < 0) | |
3385 | { | |
3386 | fprintf (stderr, _("Type index number %d out of range\n"), index); | |
3387 | return NULL; | |
3388 | } | |
3389 | ||
3390 | ps = info->file_types + filenum; | |
3391 | ||
3392 | while (index >= STAB_TYPES_SLOTS) | |
3393 | { | |
3394 | if (*ps == NULL) | |
3395 | { | |
3396 | *ps = (struct stab_types *) xmalloc (sizeof **ps); | |
3397 | memset (*ps, 0, sizeof **ps); | |
3398 | } | |
3399 | ps = &(*ps)->next; | |
3400 | index -= STAB_TYPES_SLOTS; | |
3401 | } | |
3402 | if (*ps == NULL) | |
3403 | { | |
3404 | *ps = (struct stab_types *) xmalloc (sizeof **ps); | |
3405 | memset (*ps, 0, sizeof **ps); | |
3406 | } | |
3407 | ||
3408 | return (*ps)->types + index; | |
3409 | } | |
3410 | ||
3411 | /* Find a type given a type number. If the type has not been | |
3412 | allocated yet, create an indirect type. */ | |
3413 | ||
3414 | static debug_type | |
3415 | stab_find_type (dhandle, info, typenums) | |
3416 | PTR dhandle; | |
3417 | struct stab_handle *info; | |
3418 | const int *typenums; | |
3419 | { | |
3420 | debug_type *slot; | |
3421 | ||
3422 | if (typenums[0] == 0 && typenums[1] < 0) | |
3423 | { | |
3424 | /* A negative type number indicates an XCOFF builtin type. */ | |
3425 | return stab_xcoff_builtin_type (dhandle, info, typenums[1]); | |
3426 | } | |
3427 | ||
3428 | slot = stab_find_slot (info, typenums); | |
3429 | if (slot == NULL) | |
3430 | return DEBUG_TYPE_NULL; | |
3431 | ||
3432 | if (*slot == DEBUG_TYPE_NULL) | |
3433 | return debug_make_indirect_type (dhandle, slot, (const char *) NULL); | |
3434 | ||
3435 | return *slot; | |
3436 | } | |
3437 | ||
3438 | /* Record that a given type number refers to a given type. */ | |
3439 | ||
3440 | static boolean | |
3441 | stab_record_type (dhandle, info, typenums, type) | |
3442 | PTR dhandle; | |
3443 | struct stab_handle *info; | |
3444 | const int *typenums; | |
3445 | debug_type type; | |
3446 | { | |
3447 | debug_type *slot; | |
3448 | ||
3449 | slot = stab_find_slot (info, typenums); | |
3450 | if (slot == NULL) | |
3451 | return false; | |
3452 | ||
3453 | /* gdb appears to ignore type redefinitions, so we do as well. */ | |
3454 | ||
3455 | *slot = type; | |
3456 | ||
3457 | return true; | |
3458 | } | |
3459 | ||
3460 | /* Return an XCOFF builtin type. */ | |
3461 | ||
3462 | static debug_type | |
3463 | stab_xcoff_builtin_type (dhandle, info, typenum) | |
3464 | PTR dhandle; | |
3465 | struct stab_handle *info; | |
3466 | int typenum; | |
3467 | { | |
3468 | debug_type rettype; | |
3469 | const char *name; | |
3470 | ||
3471 | if (typenum >= 0 || typenum < -XCOFF_TYPE_COUNT) | |
3472 | { | |
3473 | fprintf (stderr, _("Unrecognized XCOFF type %d\n"), typenum); | |
3474 | return DEBUG_TYPE_NULL; | |
3475 | } | |
3476 | if (info->xcoff_types[-typenum] != NULL) | |
3477 | return info->xcoff_types[-typenum]; | |
3478 | ||
3479 | switch (-typenum) | |
3480 | { | |
3481 | case 1: | |
3482 | /* The size of this and all the other types are fixed, defined | |
3483 | by the debugging format. */ | |
3484 | name = "int"; | |
3485 | rettype = debug_make_int_type (dhandle, 4, false); | |
3486 | break; | |
3487 | case 2: | |
3488 | name = "char"; | |
3489 | rettype = debug_make_int_type (dhandle, 1, false); | |
3490 | break; | |
3491 | case 3: | |
3492 | name = "short"; | |
3493 | rettype = debug_make_int_type (dhandle, 2, false); | |
3494 | break; | |
3495 | case 4: | |
3496 | name = "long"; | |
3497 | rettype = debug_make_int_type (dhandle, 4, false); | |
3498 | break; | |
3499 | case 5: | |
3500 | name = "unsigned char"; | |
3501 | rettype = debug_make_int_type (dhandle, 1, true); | |
3502 | break; | |
3503 | case 6: | |
3504 | name = "signed char"; | |
3505 | rettype = debug_make_int_type (dhandle, 1, false); | |
3506 | break; | |
3507 | case 7: | |
3508 | name = "unsigned short"; | |
3509 | rettype = debug_make_int_type (dhandle, 2, true); | |
3510 | break; | |
3511 | case 8: | |
3512 | name = "unsigned int"; | |
3513 | rettype = debug_make_int_type (dhandle, 4, true); | |
3514 | break; | |
3515 | case 9: | |
3516 | name = "unsigned"; | |
3517 | rettype = debug_make_int_type (dhandle, 4, true); | |
3518 | case 10: | |
3519 | name = "unsigned long"; | |
3520 | rettype = debug_make_int_type (dhandle, 4, true); | |
3521 | break; | |
3522 | case 11: | |
3523 | name = "void"; | |
3524 | rettype = debug_make_void_type (dhandle); | |
3525 | break; | |
3526 | case 12: | |
3527 | /* IEEE single precision (32 bit). */ | |
3528 | name = "float"; | |
3529 | rettype = debug_make_float_type (dhandle, 4); | |
3530 | break; | |
3531 | case 13: | |
3532 | /* IEEE double precision (64 bit). */ | |
3533 | name = "double"; | |
3534 | rettype = debug_make_float_type (dhandle, 8); | |
3535 | break; | |
3536 | case 14: | |
3537 | /* This is an IEEE double on the RS/6000, and different machines | |
3538 | with different sizes for "long double" should use different | |
3539 | negative type numbers. See stabs.texinfo. */ | |
3540 | name = "long double"; | |
3541 | rettype = debug_make_float_type (dhandle, 8); | |
3542 | break; | |
3543 | case 15: | |
3544 | name = "integer"; | |
3545 | rettype = debug_make_int_type (dhandle, 4, false); | |
3546 | break; | |
3547 | case 16: | |
3548 | name = "boolean"; | |
3549 | rettype = debug_make_bool_type (dhandle, 4); | |
3550 | break; | |
3551 | case 17: | |
3552 | name = "short real"; | |
3553 | rettype = debug_make_float_type (dhandle, 4); | |
3554 | break; | |
3555 | case 18: | |
3556 | name = "real"; | |
3557 | rettype = debug_make_float_type (dhandle, 8); | |
3558 | break; | |
3559 | case 19: | |
3560 | /* FIXME */ | |
3561 | name = "stringptr"; | |
3562 | rettype = NULL; | |
3563 | break; | |
3564 | case 20: | |
3565 | /* FIXME */ | |
3566 | name = "character"; | |
3567 | rettype = debug_make_int_type (dhandle, 1, true); | |
3568 | break; | |
3569 | case 21: | |
3570 | name = "logical*1"; | |
3571 | rettype = debug_make_bool_type (dhandle, 1); | |
3572 | break; | |
3573 | case 22: | |
3574 | name = "logical*2"; | |
3575 | rettype = debug_make_bool_type (dhandle, 2); | |
3576 | break; | |
3577 | case 23: | |
3578 | name = "logical*4"; | |
3579 | rettype = debug_make_bool_type (dhandle, 4); | |
3580 | break; | |
3581 | case 24: | |
3582 | name = "logical"; | |
3583 | rettype = debug_make_bool_type (dhandle, 4); | |
3584 | break; | |
3585 | case 25: | |
3586 | /* Complex type consisting of two IEEE single precision values. */ | |
3587 | name = "complex"; | |
3588 | rettype = debug_make_complex_type (dhandle, 8); | |
3589 | break; | |
3590 | case 26: | |
3591 | /* Complex type consisting of two IEEE double precision values. */ | |
3592 | name = "double complex"; | |
3593 | rettype = debug_make_complex_type (dhandle, 16); | |
3594 | break; | |
3595 | case 27: | |
3596 | name = "integer*1"; | |
3597 | rettype = debug_make_int_type (dhandle, 1, false); | |
3598 | break; | |
3599 | case 28: | |
3600 | name = "integer*2"; | |
3601 | rettype = debug_make_int_type (dhandle, 2, false); | |
3602 | break; | |
3603 | case 29: | |
3604 | name = "integer*4"; | |
3605 | rettype = debug_make_int_type (dhandle, 4, false); | |
3606 | break; | |
3607 | case 30: | |
3608 | /* FIXME */ | |
3609 | name = "wchar"; | |
3610 | rettype = debug_make_int_type (dhandle, 2, false); | |
3611 | break; | |
3612 | case 31: | |
3613 | name = "long long"; | |
3614 | rettype = debug_make_int_type (dhandle, 8, false); | |
3615 | break; | |
3616 | case 32: | |
3617 | name = "unsigned long long"; | |
3618 | rettype = debug_make_int_type (dhandle, 8, true); | |
3619 | break; | |
3620 | case 33: | |
3621 | name = "logical*8"; | |
3622 | rettype = debug_make_bool_type (dhandle, 8); | |
3623 | break; | |
3624 | case 34: | |
3625 | name = "integer*8"; | |
3626 | rettype = debug_make_int_type (dhandle, 8, false); | |
3627 | break; | |
3628 | default: | |
3629 | abort (); | |
3630 | } | |
3631 | ||
3632 | rettype = debug_name_type (dhandle, name, rettype); | |
3633 | ||
3634 | info->xcoff_types[-typenum] = rettype; | |
3635 | ||
3636 | return rettype; | |
3637 | } | |
3638 | ||
3639 | /* Find or create a tagged type. */ | |
3640 | ||
3641 | static debug_type | |
3642 | stab_find_tagged_type (dhandle, info, p, len, kind) | |
3643 | PTR dhandle; | |
3644 | struct stab_handle *info; | |
3645 | const char *p; | |
3646 | int len; | |
3647 | enum debug_type_kind kind; | |
3648 | { | |
3649 | char *name; | |
3650 | debug_type dtype; | |
3651 | struct stab_tag *st; | |
3652 | ||
3653 | name = savestring (p, len); | |
3654 | ||
3655 | /* We pass DEBUG_KIND_ILLEGAL because we want all tags in the same | |
3656 | namespace. This is right for C, and I don't know how to handle | |
3657 | other languages. FIXME. */ | |
3658 | dtype = debug_find_tagged_type (dhandle, name, DEBUG_KIND_ILLEGAL); | |
3659 | if (dtype != DEBUG_TYPE_NULL) | |
3660 | { | |
3661 | free (name); | |
3662 | return dtype; | |
3663 | } | |
3664 | ||
3665 | /* We need to allocate an entry on the undefined tag list. */ | |
3666 | for (st = info->tags; st != NULL; st = st->next) | |
3667 | { | |
3668 | if (st->name[0] == name[0] | |
3669 | && strcmp (st->name, name) == 0) | |
3670 | { | |
3671 | if (st->kind == DEBUG_KIND_ILLEGAL) | |
3672 | st->kind = kind; | |
3673 | free (name); | |
3674 | break; | |
3675 | } | |
3676 | } | |
3677 | if (st == NULL) | |
3678 | { | |
3679 | st = (struct stab_tag *) xmalloc (sizeof *st); | |
3680 | memset (st, 0, sizeof *st); | |
3681 | ||
3682 | st->next = info->tags; | |
3683 | st->name = name; | |
3684 | st->kind = kind; | |
3685 | st->slot = DEBUG_TYPE_NULL; | |
3686 | st->type = debug_make_indirect_type (dhandle, &st->slot, name); | |
3687 | info->tags = st; | |
3688 | } | |
3689 | ||
3690 | return st->type; | |
3691 | } | |
3692 | \f | |
3693 | /* In order to get the correct argument types for a stubbed method, we | |
3694 | need to extract the argument types from a C++ mangled string. | |
3695 | Since the argument types can refer back to the return type, this | |
3696 | means that we must demangle the entire physical name. In gdb this | |
3697 | is done by calling cplus_demangle and running the results back | |
3698 | through the C++ expression parser. Since we have no expression | |
3699 | parser, we must duplicate much of the work of cplus_demangle here. | |
3700 | ||
3701 | We assume that GNU style demangling is used, since this is only | |
3702 | done for method stubs, and only g++ should output that form of | |
3703 | debugging information. */ | |
3704 | ||
3705 | /* This structure is used to hold a pointer to type information which | |
3706 | demangling a string. */ | |
3707 | ||
3708 | struct stab_demangle_typestring | |
3709 | { | |
3710 | /* The start of the type. This is not null terminated. */ | |
3711 | const char *typestring; | |
3712 | /* The length of the type. */ | |
3713 | unsigned int len; | |
3714 | }; | |
3715 | ||
3716 | /* This structure is used to hold information while demangling a | |
3717 | string. */ | |
3718 | ||
3719 | struct stab_demangle_info | |
3720 | { | |
3721 | /* The debugging information handle. */ | |
3722 | PTR dhandle; | |
3723 | /* The stab information handle. */ | |
3724 | struct stab_handle *info; | |
3725 | /* The array of arguments we are building. */ | |
3726 | debug_type *args; | |
3727 | /* Whether the method takes a variable number of arguments. */ | |
3728 | boolean varargs; | |
3729 | /* The array of types we have remembered. */ | |
3730 | struct stab_demangle_typestring *typestrings; | |
3731 | /* The number of typestrings. */ | |
3732 | unsigned int typestring_count; | |
3733 | /* The number of typestring slots we have allocated. */ | |
3734 | unsigned int typestring_alloc; | |
3735 | }; | |
3736 | ||
3737 | static void stab_bad_demangle PARAMS ((const char *)); | |
3738 | static unsigned int stab_demangle_count PARAMS ((const char **)); | |
3739 | static boolean stab_demangle_get_count | |
3740 | PARAMS ((const char **, unsigned int *)); | |
3741 | static boolean stab_demangle_prefix | |
3742 | PARAMS ((struct stab_demangle_info *, const char **)); | |
3743 | static boolean stab_demangle_function_name | |
3744 | PARAMS ((struct stab_demangle_info *, const char **, const char *)); | |
3745 | static boolean stab_demangle_signature | |
3746 | PARAMS ((struct stab_demangle_info *, const char **)); | |
3747 | static boolean stab_demangle_qualified | |
3748 | PARAMS ((struct stab_demangle_info *, const char **, debug_type *)); | |
3749 | static boolean stab_demangle_template | |
3750 | PARAMS ((struct stab_demangle_info *, const char **, char **)); | |
3751 | static boolean stab_demangle_class | |
3752 | PARAMS ((struct stab_demangle_info *, const char **, const char **)); | |
3753 | static boolean stab_demangle_args | |
3754 | PARAMS ((struct stab_demangle_info *, const char **, debug_type **, | |
3755 | boolean *)); | |
3756 | static boolean stab_demangle_arg | |
3757 | PARAMS ((struct stab_demangle_info *, const char **, debug_type **, | |
3758 | unsigned int *, unsigned int *)); | |
3759 | static boolean stab_demangle_type | |
3760 | PARAMS ((struct stab_demangle_info *, const char **, debug_type *)); | |
3761 | static boolean stab_demangle_fund_type | |
3762 | PARAMS ((struct stab_demangle_info *, const char **, debug_type *)); | |
3763 | static boolean stab_demangle_remember_type | |
3764 | PARAMS ((struct stab_demangle_info *, const char *, int)); | |
3765 | ||
3766 | /* Warn about a bad demangling. */ | |
3767 | ||
3768 | static void | |
3769 | stab_bad_demangle (s) | |
3770 | const char *s; | |
3771 | { | |
3772 | fprintf (stderr, _("bad mangled name `%s'\n"), s); | |
3773 | } | |
3774 | ||
3775 | /* Get a count from a stab string. */ | |
3776 | ||
3777 | static unsigned int | |
3778 | stab_demangle_count (pp) | |
3779 | const char **pp; | |
3780 | { | |
3781 | unsigned int count; | |
3782 | ||
3783 | count = 0; | |
3784 | while (isdigit ((unsigned char) **pp)) | |
3785 | { | |
3786 | count *= 10; | |
3787 | count += **pp - '0'; | |
3788 | ++*pp; | |
3789 | } | |
3790 | return count; | |
3791 | } | |
3792 | ||
3793 | /* Require a count in a string. The count may be multiple digits, in | |
3794 | which case it must end in an underscore. */ | |
3795 | ||
3796 | static boolean | |
3797 | stab_demangle_get_count (pp, pi) | |
3798 | const char **pp; | |
3799 | unsigned int *pi; | |
3800 | { | |
3801 | if (! isdigit ((unsigned char) **pp)) | |
3802 | return false; | |
3803 | ||
3804 | *pi = **pp - '0'; | |
3805 | ++*pp; | |
3806 | if (isdigit ((unsigned char) **pp)) | |
3807 | { | |
3808 | unsigned int count; | |
3809 | const char *p; | |
3810 | ||
3811 | count = *pi; | |
3812 | p = *pp; | |
3813 | do | |
3814 | { | |
3815 | count *= 10; | |
3816 | count += *p - '0'; | |
3817 | ++p; | |
3818 | } | |
3819 | while (isdigit ((unsigned char) *p)); | |
3820 | if (*p == '_') | |
3821 | { | |
3822 | *pp = p + 1; | |
3823 | *pi = count; | |
3824 | } | |
3825 | } | |
3826 | ||
3827 | return true; | |
3828 | } | |
3829 | ||
3830 | /* This function demangles a physical name, returning a NULL | |
3831 | terminated array of argument types. */ | |
3832 | ||
3833 | static debug_type * | |
3834 | stab_demangle_argtypes (dhandle, info, physname, pvarargs) | |
3835 | PTR dhandle; | |
3836 | struct stab_handle *info; | |
3837 | const char *physname; | |
3838 | boolean *pvarargs; | |
3839 | { | |
3840 | struct stab_demangle_info minfo; | |
3841 | ||
3842 | minfo.dhandle = dhandle; | |
3843 | minfo.info = info; | |
3844 | minfo.args = NULL; | |
3845 | minfo.varargs = false; | |
3846 | minfo.typestring_alloc = 10; | |
3847 | minfo.typestrings = ((struct stab_demangle_typestring *) | |
3848 | xmalloc (minfo.typestring_alloc | |
3849 | * sizeof *minfo.typestrings)); | |
3850 | minfo.typestring_count = 0; | |
3851 | ||
3852 | /* cplus_demangle checks for special GNU mangled forms, but we can't | |
3853 | see any of them in mangled method argument types. */ | |
3854 | ||
3855 | if (! stab_demangle_prefix (&minfo, &physname)) | |
3856 | goto error_return; | |
3857 | ||
3858 | if (*physname != '\0') | |
3859 | { | |
3860 | if (! stab_demangle_signature (&minfo, &physname)) | |
3861 | goto error_return; | |
3862 | } | |
3863 | ||
3864 | free (minfo.typestrings); | |
3865 | minfo.typestrings = NULL; | |
3866 | ||
3867 | if (minfo.args == NULL) | |
3868 | fprintf (stderr, _("no argument types in mangled string\n")); | |
3869 | ||
3870 | *pvarargs = minfo.varargs; | |
3871 | return minfo.args; | |
3872 | ||
3873 | error_return: | |
3874 | if (minfo.typestrings != NULL) | |
3875 | free (minfo.typestrings); | |
3876 | return NULL; | |
3877 | } | |
3878 | ||
3879 | /* Demangle the prefix of the mangled name. */ | |
3880 | ||
3881 | static boolean | |
3882 | stab_demangle_prefix (minfo, pp) | |
3883 | struct stab_demangle_info *minfo; | |
3884 | const char **pp; | |
3885 | { | |
3886 | const char *scan; | |
3887 | unsigned int i; | |
3888 | ||
3889 | /* cplus_demangle checks for global constructors and destructors, | |
3890 | but we can't see them in mangled argument types. */ | |
3891 | ||
3892 | /* Look for `__'. */ | |
3893 | scan = *pp; | |
3894 | do | |
3895 | { | |
3896 | scan = strchr (scan, '_'); | |
3897 | } | |
3898 | while (scan != NULL && *++scan != '_'); | |
3899 | ||
3900 | if (scan == NULL) | |
3901 | { | |
3902 | stab_bad_demangle (*pp); | |
3903 | return false; | |
3904 | } | |
3905 | ||
3906 | --scan; | |
3907 | ||
3908 | /* We found `__'; move ahead to the last contiguous `__' pair. */ | |
3909 | i = strspn (scan, "_"); | |
3910 | if (i > 2) | |
3911 | scan += i - 2; | |
3912 | ||
3913 | if (scan == *pp | |
3914 | && (isdigit ((unsigned char) scan[2]) | |
3915 | || scan[2] == 'Q' | |
3916 | || scan[2] == 't')) | |
3917 | { | |
3918 | /* This is a GNU style constructor name. */ | |
3919 | *pp = scan + 2; | |
3920 | return true; | |
3921 | } | |
3922 | else if (scan == *pp | |
3923 | && ! isdigit ((unsigned char) scan[2]) | |
3924 | && scan[2] != 't') | |
3925 | { | |
3926 | /* Look for the `__' that separates the prefix from the | |
3927 | signature. */ | |
3928 | while (*scan == '_') | |
3929 | ++scan; | |
3930 | scan = strstr (scan, "__"); | |
3931 | if (scan == NULL || scan[2] == '\0') | |
3932 | { | |
3933 | stab_bad_demangle (*pp); | |
3934 | return false; | |
3935 | } | |
3936 | ||
3937 | return stab_demangle_function_name (minfo, pp, scan); | |
3938 | } | |
3939 | else if (scan[2] != '\0') | |
3940 | { | |
3941 | /* The name doesn't start with `__', but it does contain `__'. */ | |
3942 | return stab_demangle_function_name (minfo, pp, scan); | |
3943 | } | |
3944 | else | |
3945 | { | |
3946 | stab_bad_demangle (*pp); | |
3947 | return false; | |
3948 | } | |
3949 | /*NOTREACHED*/ | |
3950 | } | |
3951 | ||
3952 | /* Demangle a function name prefix. The scan argument points to the | |
3953 | double underscore which separates the function name from the | |
3954 | signature. */ | |
3955 | ||
3956 | static boolean | |
3957 | stab_demangle_function_name (minfo, pp, scan) | |
3958 | struct stab_demangle_info *minfo; | |
3959 | const char **pp; | |
3960 | const char *scan; | |
3961 | { | |
3962 | const char *name; | |
3963 | ||
3964 | /* The string from *pp to scan is the name of the function. We | |
3965 | don't care about the name, since we just looking for argument | |
3966 | types. However, for conversion operators, the name may include a | |
3967 | type which we must remember in order to handle backreferences. */ | |
3968 | ||
3969 | name = *pp; | |
3970 | *pp = scan + 2; | |
3971 | ||
3972 | if (*pp - name >= 5 | |
3973 | && strncmp (name, "type", 4) == 0 | |
3974 | && (name[4] == '$' || name[4] == '.')) | |
3975 | { | |
3976 | const char *tem; | |
3977 | ||
3978 | /* This is a type conversion operator. */ | |
3979 | tem = name + 5; | |
3980 | if (! stab_demangle_type (minfo, &tem, (debug_type *) NULL)) | |
3981 | return false; | |
3982 | } | |
3983 | else if (name[0] == '_' | |
3984 | && name[1] == '_' | |
3985 | && name[2] == 'o' | |
3986 | && name[3] == 'p') | |
3987 | { | |
3988 | const char *tem; | |
3989 | ||
3990 | /* This is a type conversion operator. */ | |
3991 | tem = name + 4; | |
3992 | if (! stab_demangle_type (minfo, &tem, (debug_type *) NULL)) | |
3993 | return false; | |
3994 | } | |
3995 | ||
3996 | return true; | |
3997 | } | |
3998 | ||
3999 | /* Demangle the signature. This is where the argument types are | |
4000 | found. */ | |
4001 | ||
4002 | static boolean | |
4003 | stab_demangle_signature (minfo, pp) | |
4004 | struct stab_demangle_info *minfo; | |
4005 | const char **pp; | |
4006 | { | |
4007 | const char *orig; | |
4008 | boolean expect_func, func_done; | |
4009 | const char *hold; | |
4010 | ||
4011 | orig = *pp; | |
4012 | ||
4013 | expect_func = false; | |
4014 | func_done = false; | |
4015 | hold = NULL; | |
4016 | ||
4017 | while (**pp != '\0') | |
4018 | { | |
4019 | switch (**pp) | |
4020 | { | |
4021 | case 'Q': | |
4022 | hold = *pp; | |
4023 | if (! stab_demangle_qualified (minfo, pp, (debug_type *) NULL) | |
4024 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) | |
4025 | return false; | |
4026 | expect_func = true; | |
4027 | hold = NULL; | |
4028 | break; | |
4029 | ||
4030 | case 'S': | |
4031 | /* Static member function. FIXME: Can this happen? */ | |
4032 | if (hold == NULL) | |
4033 | hold = *pp; | |
4034 | ++*pp; | |
4035 | break; | |
4036 | ||
4037 | case 'C': | |
4038 | /* Const member function. */ | |
4039 | if (hold == NULL) | |
4040 | hold = *pp; | |
4041 | ++*pp; | |
4042 | break; | |
4043 | ||
4044 | case '0': case '1': case '2': case '3': case '4': | |
4045 | case '5': case '6': case '7': case '8': case '9': | |
4046 | if (hold == NULL) | |
4047 | hold = *pp; | |
4048 | if (! stab_demangle_class (minfo, pp, (const char **) NULL) | |
4049 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) | |
4050 | return false; | |
4051 | expect_func = true; | |
4052 | hold = NULL; | |
4053 | break; | |
4054 | ||
4055 | case 'F': | |
4056 | /* Function. I don't know if this actually happens with g++ | |
4057 | output. */ | |
4058 | hold = NULL; | |
4059 | func_done = true; | |
4060 | ++*pp; | |
4061 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) | |
4062 | return false; | |
4063 | break; | |
4064 | ||
4065 | case 't': | |
4066 | /* Template. */ | |
4067 | if (hold == NULL) | |
4068 | hold = *pp; | |
4069 | if (! stab_demangle_template (minfo, pp, (char **) NULL) | |
4070 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) | |
4071 | return false; | |
4072 | hold = NULL; | |
4073 | expect_func = true; | |
4074 | break; | |
4075 | ||
4076 | case '_': | |
4077 | /* At the outermost level, we cannot have a return type | |
4078 | specified, so if we run into another '_' at this point we | |
4079 | are dealing with a mangled name that is either bogus, or | |
4080 | has been mangled by some algorithm we don't know how to | |
4081 | deal with. So just reject the entire demangling. */ | |
4082 | stab_bad_demangle (orig); | |
4083 | return false; | |
4084 | ||
4085 | default: | |
4086 | /* Assume we have stumbled onto the first outermost function | |
4087 | argument token, and start processing args. */ | |
4088 | func_done = true; | |
4089 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) | |
4090 | return false; | |
4091 | break; | |
4092 | } | |
4093 | ||
4094 | if (expect_func) | |
4095 | { | |
4096 | func_done = true; | |
4097 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) | |
4098 | return false; | |
4099 | } | |
4100 | } | |
4101 | ||
4102 | if (! func_done) | |
4103 | { | |
4104 | /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and | |
4105 | bar__3fooi is 'foo::bar(int)'. We get here when we find the | |
4106 | first case, and need to ensure that the '(void)' gets added | |
4107 | to the current declp. */ | |
4108 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) | |
4109 | return false; | |
4110 | } | |
4111 | ||
4112 | return true; | |
4113 | } | |
4114 | ||
4115 | /* Demangle a qualified name, such as "Q25Outer5Inner" which is the | |
4116 | mangled form of "Outer::Inner". */ | |
4117 | ||
4118 | static boolean | |
4119 | stab_demangle_qualified (minfo, pp, ptype) | |
4120 | struct stab_demangle_info *minfo; | |
4121 | const char **pp; | |
4122 | debug_type *ptype; | |
4123 | { | |
4124 | const char *orig; | |
4125 | const char *p; | |
4126 | unsigned int qualifiers; | |
4127 | debug_type context; | |
4128 | ||
4129 | orig = *pp; | |
4130 | ||
4131 | switch ((*pp)[1]) | |
4132 | { | |
4133 | case '_': | |
4134 | /* GNU mangled name with more than 9 classes. The count is | |
4135 | preceded by an underscore (to distinguish it from the <= 9 | |
4136 | case) and followed by an underscore. */ | |
4137 | p = *pp + 2; | |
4138 | if (! isdigit ((unsigned char) *p) || *p == '0') | |
4139 | { | |
4140 | stab_bad_demangle (orig); | |
4141 | return false; | |
4142 | } | |
4143 | qualifiers = atoi (p); | |
4144 | while (isdigit ((unsigned char) *p)) | |
4145 | ++p; | |
4146 | if (*p != '_') | |
4147 | { | |
4148 | stab_bad_demangle (orig); | |
4149 | return false; | |
4150 | } | |
4151 | *pp = p + 1; | |
4152 | break; | |
4153 | ||
4154 | case '1': case '2': case '3': case '4': case '5': | |
4155 | case '6': case '7': case '8': case '9': | |
4156 | qualifiers = (*pp)[1] - '0'; | |
4157 | /* Skip an optional underscore after the count. */ | |
4158 | if ((*pp)[2] == '_') | |
4159 | ++*pp; | |
4160 | *pp += 2; | |
4161 | break; | |
4162 | ||
4163 | case '0': | |
4164 | default: | |
4165 | stab_bad_demangle (orig); | |
4166 | return false; | |
4167 | } | |
4168 | ||
4169 | context = DEBUG_TYPE_NULL; | |
4170 | ||
4171 | /* Pick off the names. */ | |
4172 | while (qualifiers-- > 0) | |
4173 | { | |
4174 | if (**pp == '_') | |
4175 | ++*pp; | |
4176 | if (**pp == 't') | |
4177 | { | |
4178 | char *name; | |
4179 | ||
4180 | if (! stab_demangle_template (minfo, pp, | |
4181 | ptype != NULL ? &name : NULL)) | |
4182 | return false; | |
4183 | ||
4184 | if (ptype != NULL) | |
4185 | { | |
4186 | context = stab_find_tagged_type (minfo->dhandle, minfo->info, | |
4187 | name, strlen (name), | |
4188 | DEBUG_KIND_CLASS); | |
4189 | free (name); | |
4190 | if (context == DEBUG_TYPE_NULL) | |
4191 | return false; | |
4192 | } | |
4193 | } | |
4194 | else | |
4195 | { | |
4196 | unsigned int len; | |
4197 | ||
4198 | len = stab_demangle_count (pp); | |
4199 | if (strlen (*pp) < len) | |
4200 | { | |
4201 | stab_bad_demangle (orig); | |
4202 | return false; | |
4203 | } | |
4204 | ||
4205 | if (ptype != NULL) | |
4206 | { | |
4207 | const debug_field *fields; | |
4208 | ||
4209 | fields = NULL; | |
4210 | if (context != DEBUG_TYPE_NULL) | |
4211 | fields = debug_get_fields (minfo->dhandle, context); | |
4212 | ||
4213 | context = DEBUG_TYPE_NULL; | |
4214 | ||
4215 | if (fields != NULL) | |
4216 | { | |
4217 | char *name; | |
4218 | ||
4219 | /* Try to find the type by looking through the | |
4220 | fields of context until we find a field with the | |
4221 | same type. This ought to work for a class | |
4222 | defined within a class, but it won't work for, | |
4223 | e.g., an enum defined within a class. stabs does | |
4224 | not give us enough information to figure out the | |
4225 | latter case. */ | |
4226 | ||
4227 | name = savestring (*pp, len); | |
4228 | ||
4229 | for (; *fields != DEBUG_FIELD_NULL; fields++) | |
4230 | { | |
4231 | debug_type ft; | |
4232 | const char *dn; | |
4233 | ||
4234 | ft = debug_get_field_type (minfo->dhandle, *fields); | |
4235 | if (ft == NULL) | |
4236 | return false; | |
4237 | dn = debug_get_type_name (minfo->dhandle, ft); | |
4238 | if (dn != NULL && strcmp (dn, name) == 0) | |
4239 | { | |
4240 | context = ft; | |
4241 | break; | |
4242 | } | |
4243 | } | |
4244 | ||
4245 | free (name); | |
4246 | } | |
4247 | ||
4248 | if (context == DEBUG_TYPE_NULL) | |
4249 | { | |
4250 | /* We have to fall back on finding the type by name. | |
4251 | If there are more types to come, then this must | |
4252 | be a class. Otherwise, it could be anything. */ | |
4253 | ||
4254 | if (qualifiers == 0) | |
4255 | { | |
4256 | char *name; | |
4257 | ||
4258 | name = savestring (*pp, len); | |
4259 | context = debug_find_named_type (minfo->dhandle, | |
4260 | name); | |
4261 | free (name); | |
4262 | } | |
4263 | ||
4264 | if (context == DEBUG_TYPE_NULL) | |
4265 | { | |
4266 | context = stab_find_tagged_type (minfo->dhandle, | |
4267 | minfo->info, | |
4268 | *pp, len, | |
4269 | (qualifiers == 0 | |
4270 | ? DEBUG_KIND_ILLEGAL | |
4271 | : DEBUG_KIND_CLASS)); | |
4272 | if (context == DEBUG_TYPE_NULL) | |
4273 | return false; | |
4274 | } | |
4275 | } | |
4276 | } | |
4277 | ||
4278 | *pp += len; | |
4279 | } | |
4280 | } | |
4281 | ||
4282 | if (ptype != NULL) | |
4283 | *ptype = context; | |
4284 | ||
4285 | return true; | |
4286 | } | |
4287 | ||
4288 | /* Demangle a template. If PNAME is not NULL, this sets *PNAME to a | |
4289 | string representation of the template. */ | |
4290 | ||
4291 | static boolean | |
4292 | stab_demangle_template (minfo, pp, pname) | |
4293 | struct stab_demangle_info *minfo; | |
4294 | const char **pp; | |
4295 | char **pname; | |
4296 | { | |
4297 | const char *orig; | |
4298 | unsigned int r, i; | |
4299 | ||
4300 | orig = *pp; | |
4301 | ||
4302 | ++*pp; | |
4303 | ||
4304 | /* Skip the template name. */ | |
4305 | r = stab_demangle_count (pp); | |
4306 | if (r == 0 || strlen (*pp) < r) | |
4307 | { | |
4308 | stab_bad_demangle (orig); | |
4309 | return false; | |
4310 | } | |
4311 | *pp += r; | |
4312 | ||
4313 | /* Get the size of the parameter list. */ | |
4314 | if (stab_demangle_get_count (pp, &r) == 0) | |
4315 | { | |
4316 | stab_bad_demangle (orig); | |
4317 | return false; | |
4318 | } | |
4319 | ||
4320 | for (i = 0; i < r; i++) | |
4321 | { | |
4322 | if (**pp == 'Z') | |
4323 | { | |
4324 | /* This is a type parameter. */ | |
4325 | ++*pp; | |
4326 | if (! stab_demangle_type (minfo, pp, (debug_type *) NULL)) | |
4327 | return false; | |
4328 | } | |
4329 | else | |
4330 | { | |
4331 | const char *old_p; | |
4332 | boolean pointerp, realp, integralp, charp, boolp; | |
4333 | boolean done; | |
4334 | ||
4335 | old_p = *pp; | |
4336 | pointerp = false; | |
4337 | realp = false; | |
4338 | integralp = false; | |
4339 | charp = false; | |
4340 | boolp = false; | |
4341 | done = false; | |
4342 | ||
4343 | /* This is a value parameter. */ | |
4344 | ||
4345 | if (! stab_demangle_type (minfo, pp, (debug_type *) NULL)) | |
4346 | return false; | |
4347 | ||
4348 | while (*old_p != '\0' && ! done) | |
4349 | { | |
4350 | switch (*old_p) | |
4351 | { | |
4352 | case 'P': | |
4353 | case 'p': | |
4354 | case 'R': | |
4355 | pointerp = true; | |
4356 | done = true; | |
4357 | break; | |
4358 | case 'C': /* Const. */ | |
4359 | case 'S': /* Signed. */ | |
4360 | case 'U': /* Unsigned. */ | |
4361 | case 'V': /* Volatile. */ | |
4362 | case 'F': /* Function. */ | |
4363 | case 'M': /* Member function. */ | |
4364 | case 'O': /* ??? */ | |
4365 | ++old_p; | |
4366 | break; | |
4367 | case 'Q': /* Qualified name. */ | |
4368 | integralp = true; | |
4369 | done = true; | |
4370 | break; | |
4371 | case 'T': /* Remembered type. */ | |
4372 | abort (); | |
4373 | case 'v': /* Void. */ | |
4374 | abort (); | |
4375 | case 'x': /* Long long. */ | |
4376 | case 'l': /* Long. */ | |
4377 | case 'i': /* Int. */ | |
4378 | case 's': /* Short. */ | |
4379 | case 'w': /* Wchar_t. */ | |
4380 | integralp = true; | |
4381 | done = true; | |
4382 | break; | |
4383 | case 'b': /* Bool. */ | |
4384 | boolp = true; | |
4385 | done = true; | |
4386 | break; | |
4387 | case 'c': /* Char. */ | |
4388 | charp = true; | |
4389 | done = true; | |
4390 | break; | |
4391 | case 'r': /* Long double. */ | |
4392 | case 'd': /* Double. */ | |
4393 | case 'f': /* Float. */ | |
4394 | realp = true; | |
4395 | done = true; | |
4396 | break; | |
4397 | default: | |
4398 | /* Assume it's a user defined integral type. */ | |
4399 | integralp = true; | |
4400 | done = true; | |
4401 | break; | |
4402 | } | |
4403 | } | |
4404 | ||
4405 | if (integralp) | |
4406 | { | |
4407 | if (**pp == 'm') | |
4408 | ++*pp; | |
4409 | while (isdigit ((unsigned char) **pp)) | |
4410 | ++*pp; | |
4411 | } | |
4412 | else if (charp) | |
4413 | { | |
4414 | unsigned int val; | |
4415 | ||
4416 | if (**pp == 'm') | |
4417 | ++*pp; | |
4418 | val = stab_demangle_count (pp); | |
4419 | if (val == 0) | |
4420 | { | |
4421 | stab_bad_demangle (orig); | |
4422 | return false; | |
4423 | } | |
4424 | } | |
4425 | else if (boolp) | |
4426 | { | |
4427 | unsigned int val; | |
4428 | ||
4429 | val = stab_demangle_count (pp); | |
4430 | if (val != 0 && val != 1) | |
4431 | { | |
4432 | stab_bad_demangle (orig); | |
4433 | return false; | |
4434 | } | |
4435 | } | |
4436 | else if (realp) | |
4437 | { | |
4438 | if (**pp == 'm') | |
4439 | ++*pp; | |
4440 | while (isdigit ((unsigned char) **pp)) | |
4441 | ++*pp; | |
4442 | if (**pp == '.') | |
4443 | { | |
4444 | ++*pp; | |
4445 | while (isdigit ((unsigned char) **pp)) | |
4446 | ++*pp; | |
4447 | } | |
4448 | if (**pp == 'e') | |
4449 | { | |
4450 | ++*pp; | |
4451 | while (isdigit ((unsigned char) **pp)) | |
4452 | ++*pp; | |
4453 | } | |
4454 | } | |
4455 | else if (pointerp) | |
4456 | { | |
4457 | unsigned int len; | |
4458 | ||
4459 | if (! stab_demangle_get_count (pp, &len)) | |
4460 | { | |
4461 | stab_bad_demangle (orig); | |
4462 | return false; | |
4463 | } | |
4464 | *pp += len; | |
4465 | } | |
4466 | } | |
4467 | } | |
4468 | ||
4469 | /* We can translate this to a string fairly easily by invoking the | |
4470 | regular demangling routine. */ | |
4471 | if (pname != NULL) | |
4472 | { | |
4473 | char *s1, *s2, *s3, *s4; | |
4474 | char *from, *to; | |
4475 | ||
4476 | s1 = savestring (orig, *pp - orig); | |
4477 | ||
4478 | s2 = concat ("NoSuchStrinG__", s1, (const char *) NULL); | |
4479 | ||
4480 | free (s1); | |
4481 | ||
4482 | s3 = cplus_demangle (s2, DMGL_ANSI); | |
4483 | ||
4484 | free (s2); | |
4485 | ||
4486 | if (s3 != NULL) | |
4487 | s4 = strstr (s3, "::NoSuchStrinG"); | |
4488 | if (s3 == NULL || s4 == NULL) | |
4489 | { | |
4490 | stab_bad_demangle (orig); | |
4491 | if (s3 != NULL) | |
4492 | free (s3); | |
4493 | return false; | |
4494 | } | |
4495 | ||
4496 | /* Eliminating all spaces, except those between > characters, | |
4497 | makes it more likely that the demangled name will match the | |
4498 | name which g++ used as the structure name. */ | |
4499 | for (from = to = s3; from != s4; ++from) | |
4500 | if (*from != ' ' | |
4501 | || (from[1] == '>' && from > s3 && from[-1] == '>')) | |
4502 | *to++ = *from; | |
4503 | ||
4504 | *pname = savestring (s3, to - s3); | |
4505 | ||
4506 | free (s3); | |
4507 | } | |
4508 | ||
4509 | return true; | |
4510 | } | |
4511 | ||
4512 | /* Demangle a class name. */ | |
4513 | ||
4514 | static boolean | |
4515 | stab_demangle_class (minfo, pp, pstart) | |
4516 | struct stab_demangle_info *minfo; | |
4517 | const char **pp; | |
4518 | const char **pstart; | |
4519 | { | |
4520 | const char *orig; | |
4521 | unsigned int n; | |
4522 | ||
4523 | orig = *pp; | |
4524 | ||
4525 | n = stab_demangle_count (pp); | |
4526 | if (strlen (*pp) < n) | |
4527 | { | |
4528 | stab_bad_demangle (orig); | |
4529 | return false; | |
4530 | } | |
4531 | ||
4532 | if (pstart != NULL) | |
4533 | *pstart = *pp; | |
4534 | ||
4535 | *pp += n; | |
4536 | ||
4537 | return true; | |
4538 | } | |
4539 | ||
4540 | /* Demangle function arguments. If the pargs argument is not NULL, it | |
4541 | is set to a NULL terminated array holding the arguments. */ | |
4542 | ||
4543 | static boolean | |
4544 | stab_demangle_args (minfo, pp, pargs, pvarargs) | |
4545 | struct stab_demangle_info *minfo; | |
4546 | const char **pp; | |
4547 | debug_type **pargs; | |
4548 | boolean *pvarargs; | |
4549 | { | |
4550 | const char *orig; | |
4551 | unsigned int alloc, count; | |
4552 | ||
4553 | orig = *pp; | |
4554 | ||
4555 | alloc = 10; | |
4556 | if (pargs != NULL) | |
4557 | { | |
4558 | *pargs = (debug_type *) xmalloc (alloc * sizeof **pargs); | |
4559 | *pvarargs = false; | |
4560 | } | |
4561 | count = 0; | |
4562 | ||
4563 | while (**pp != '_' && **pp != '\0' && **pp != 'e') | |
4564 | { | |
4565 | if (**pp == 'N' || **pp == 'T') | |
4566 | { | |
4567 | char temptype; | |
4568 | unsigned int r, t; | |
4569 | ||
4570 | temptype = **pp; | |
4571 | ++*pp; | |
4572 | ||
4573 | if (temptype == 'T') | |
4574 | r = 1; | |
4575 | else | |
4576 | { | |
4577 | if (! stab_demangle_get_count (pp, &r)) | |
4578 | { | |
4579 | stab_bad_demangle (orig); | |
4580 | return false; | |
4581 | } | |
4582 | } | |
4583 | ||
4584 | if (! stab_demangle_get_count (pp, &t)) | |
4585 | { | |
4586 | stab_bad_demangle (orig); | |
4587 | return false; | |
4588 | } | |
4589 | ||
4590 | if (t >= minfo->typestring_count) | |
4591 | { | |
4592 | stab_bad_demangle (orig); | |
4593 | return false; | |
4594 | } | |
4595 | while (r-- > 0) | |
4596 | { | |
4597 | const char *tem; | |
4598 | ||
4599 | tem = minfo->typestrings[t].typestring; | |
4600 | if (! stab_demangle_arg (minfo, &tem, pargs, &count, &alloc)) | |
4601 | return false; | |
4602 | } | |
4603 | } | |
4604 | else | |
4605 | { | |
4606 | if (! stab_demangle_arg (minfo, pp, pargs, &count, &alloc)) | |
4607 | return false; | |
4608 | } | |
4609 | } | |
4610 | ||
4611 | if (pargs != NULL) | |
4612 | (*pargs)[count] = DEBUG_TYPE_NULL; | |
4613 | ||
4614 | if (**pp == 'e') | |
4615 | { | |
4616 | if (pargs != NULL) | |
4617 | *pvarargs = true; | |
4618 | ++*pp; | |
4619 | } | |
4620 | ||
4621 | return true; | |
4622 | } | |
4623 | ||
4624 | /* Demangle a single argument. */ | |
4625 | ||
4626 | static boolean | |
4627 | stab_demangle_arg (minfo, pp, pargs, pcount, palloc) | |
4628 | struct stab_demangle_info *minfo; | |
4629 | const char **pp; | |
4630 | debug_type **pargs; | |
4631 | unsigned int *pcount; | |
4632 | unsigned int *palloc; | |
4633 | { | |
4634 | const char *start; | |
4635 | debug_type type; | |
4636 | ||
4637 | start = *pp; | |
4638 | if (! stab_demangle_type (minfo, pp, | |
4639 | pargs == NULL ? (debug_type *) NULL : &type) | |
4640 | || ! stab_demangle_remember_type (minfo, start, *pp - start)) | |
4641 | return false; | |
4642 | ||
4643 | if (pargs != NULL) | |
4644 | { | |
4645 | if (type == DEBUG_TYPE_NULL) | |
4646 | return false; | |
4647 | ||
4648 | if (*pcount + 1 >= *palloc) | |
4649 | { | |
4650 | *palloc += 10; | |
4651 | *pargs = ((debug_type *) | |
4652 | xrealloc (*pargs, *palloc * sizeof **pargs)); | |
4653 | } | |
4654 | (*pargs)[*pcount] = type; | |
4655 | ++*pcount; | |
4656 | } | |
4657 | ||
4658 | return true; | |
4659 | } | |
4660 | ||
4661 | /* Demangle a type. If the ptype argument is not NULL, *ptype is set | |
4662 | to the newly allocated type. */ | |
4663 | ||
4664 | static boolean | |
4665 | stab_demangle_type (minfo, pp, ptype) | |
4666 | struct stab_demangle_info *minfo; | |
4667 | const char **pp; | |
4668 | debug_type *ptype; | |
4669 | { | |
4670 | const char *orig; | |
4671 | ||
4672 | orig = *pp; | |
4673 | ||
4674 | switch (**pp) | |
4675 | { | |
4676 | case 'P': | |
4677 | case 'p': | |
4678 | /* A pointer type. */ | |
4679 | ++*pp; | |
4680 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4681 | return false; | |
4682 | if (ptype != NULL) | |
4683 | *ptype = debug_make_pointer_type (minfo->dhandle, *ptype); | |
4684 | break; | |
4685 | ||
4686 | case 'R': | |
4687 | /* A reference type. */ | |
4688 | ++*pp; | |
4689 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4690 | return false; | |
4691 | if (ptype != NULL) | |
4692 | *ptype = debug_make_reference_type (minfo->dhandle, *ptype); | |
4693 | break; | |
4694 | ||
4695 | case 'A': | |
4696 | /* An array. */ | |
4697 | { | |
4698 | unsigned long high; | |
4699 | ||
4700 | ++*pp; | |
4701 | high = 0; | |
4702 | while (**pp != '\0' && **pp != '_') | |
4703 | { | |
4704 | if (! isdigit ((unsigned char) **pp)) | |
4705 | { | |
4706 | stab_bad_demangle (orig); | |
4707 | return false; | |
4708 | } | |
4709 | high *= 10; | |
4710 | high += **pp - '0'; | |
4711 | ++*pp; | |
4712 | } | |
4713 | if (**pp != '_') | |
4714 | { | |
4715 | stab_bad_demangle (orig); | |
4716 | return false; | |
4717 | } | |
4718 | ++*pp; | |
4719 | ||
4720 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4721 | return false; | |
4722 | if (ptype != NULL) | |
4723 | { | |
4724 | debug_type int_type; | |
4725 | ||
4726 | int_type = debug_find_named_type (minfo->dhandle, "int"); | |
4727 | if (int_type == NULL) | |
4728 | int_type = debug_make_int_type (minfo->dhandle, 4, false); | |
4729 | *ptype = debug_make_array_type (minfo->dhandle, *ptype, int_type, | |
4730 | 0, high, false); | |
4731 | } | |
4732 | } | |
4733 | break; | |
4734 | ||
4735 | case 'T': | |
4736 | /* A back reference to a remembered type. */ | |
4737 | { | |
4738 | unsigned int i; | |
4739 | const char *p; | |
4740 | ||
4741 | ++*pp; | |
4742 | if (! stab_demangle_get_count (pp, &i)) | |
4743 | { | |
4744 | stab_bad_demangle (orig); | |
4745 | return false; | |
4746 | } | |
4747 | if (i >= minfo->typestring_count) | |
4748 | { | |
4749 | stab_bad_demangle (orig); | |
4750 | return false; | |
4751 | } | |
4752 | p = minfo->typestrings[i].typestring; | |
4753 | if (! stab_demangle_type (minfo, &p, ptype)) | |
4754 | return false; | |
4755 | } | |
4756 | break; | |
4757 | ||
4758 | case 'F': | |
4759 | /* A function. */ | |
4760 | { | |
4761 | debug_type *args; | |
4762 | boolean varargs; | |
4763 | ||
4764 | ++*pp; | |
4765 | if (! stab_demangle_args (minfo, pp, | |
4766 | (ptype == NULL | |
4767 | ? (debug_type **) NULL | |
4768 | : &args), | |
4769 | (ptype == NULL | |
4770 | ? (boolean *) NULL | |
4771 | : &varargs))) | |
4772 | return false; | |
4773 | if (**pp != '_') | |
4774 | { | |
4775 | /* cplus_demangle will accept a function without a return | |
4776 | type, but I don't know when that will happen, or what | |
4777 | to do if it does. */ | |
4778 | stab_bad_demangle (orig); | |
4779 | return false; | |
4780 | } | |
4781 | ++*pp; | |
4782 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4783 | return false; | |
4784 | if (ptype != NULL) | |
4785 | *ptype = debug_make_function_type (minfo->dhandle, *ptype, args, | |
4786 | varargs); | |
4787 | ||
4788 | } | |
4789 | break; | |
4790 | ||
4791 | case 'M': | |
4792 | case 'O': | |
4793 | { | |
4794 | boolean memberp, constp, volatilep; | |
c602a165 | 4795 | debug_type class_type = DEBUG_TYPE_NULL; |
252b5132 RH |
4796 | debug_type *args; |
4797 | boolean varargs; | |
4798 | unsigned int n; | |
4799 | const char *name; | |
4800 | ||
4801 | memberp = **pp == 'M'; | |
4802 | constp = false; | |
4803 | volatilep = false; | |
4804 | args = NULL; | |
4805 | varargs = false; | |
4806 | ||
4807 | ++*pp; | |
c602a165 | 4808 | if (isdigit ((unsigned char) **pp)) |
252b5132 | 4809 | { |
c602a165 ILT |
4810 | n = stab_demangle_count (pp); |
4811 | if (strlen (*pp) < n) | |
4812 | { | |
4813 | stab_bad_demangle (orig); | |
4814 | return false; | |
4815 | } | |
4816 | name = *pp; | |
4817 | *pp += n; | |
4818 | ||
4819 | if (ptype != NULL) | |
4820 | { | |
4821 | class_type = stab_find_tagged_type (minfo->dhandle, | |
4822 | minfo->info, | |
4823 | name, (int) n, | |
4824 | DEBUG_KIND_CLASS); | |
4825 | if (class_type == DEBUG_TYPE_NULL) | |
4826 | return false; | |
4827 | } | |
252b5132 | 4828 | } |
c602a165 ILT |
4829 | else if (**pp == 'Q') |
4830 | { | |
4831 | if (! stab_demangle_qualified (minfo, pp, | |
4832 | (ptype == NULL | |
4833 | ? (debug_type *) NULL | |
4834 | : &class_type))) | |
4835 | return false; | |
4836 | } | |
4837 | else | |
252b5132 RH |
4838 | { |
4839 | stab_bad_demangle (orig); | |
4840 | return false; | |
4841 | } | |
252b5132 RH |
4842 | |
4843 | if (memberp) | |
4844 | { | |
4845 | if (**pp == 'C') | |
4846 | { | |
4847 | constp = true; | |
4848 | ++*pp; | |
4849 | } | |
4850 | else if (**pp == 'V') | |
4851 | { | |
4852 | volatilep = true; | |
4853 | ++*pp; | |
4854 | } | |
4855 | if (**pp != 'F') | |
4856 | { | |
4857 | stab_bad_demangle (orig); | |
4858 | return false; | |
4859 | } | |
4860 | ++*pp; | |
4861 | if (! stab_demangle_args (minfo, pp, | |
4862 | (ptype == NULL | |
4863 | ? (debug_type **) NULL | |
4864 | : &args), | |
4865 | (ptype == NULL | |
4866 | ? (boolean *) NULL | |
4867 | : &varargs))) | |
4868 | return false; | |
4869 | } | |
4870 | ||
4871 | if (**pp != '_') | |
4872 | { | |
4873 | stab_bad_demangle (orig); | |
4874 | return false; | |
4875 | } | |
4876 | ++*pp; | |
4877 | ||
4878 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4879 | return false; | |
4880 | ||
4881 | if (ptype != NULL) | |
4882 | { | |
252b5132 RH |
4883 | if (! memberp) |
4884 | *ptype = debug_make_offset_type (minfo->dhandle, class_type, | |
4885 | *ptype); | |
4886 | else | |
4887 | { | |
4888 | /* FIXME: We have no way to record constp or | |
4889 | volatilep. */ | |
4890 | *ptype = debug_make_method_type (minfo->dhandle, *ptype, | |
4891 | class_type, args, varargs); | |
4892 | } | |
4893 | } | |
4894 | } | |
4895 | break; | |
4896 | ||
4897 | case 'G': | |
4898 | ++*pp; | |
4899 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4900 | return false; | |
4901 | break; | |
4902 | ||
4903 | case 'C': | |
4904 | ++*pp; | |
4905 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4906 | return false; | |
4907 | if (ptype != NULL) | |
4908 | *ptype = debug_make_const_type (minfo->dhandle, *ptype); | |
4909 | break; | |
4910 | ||
4911 | case 'Q': | |
4912 | { | |
4913 | const char *hold; | |
4914 | ||
4915 | hold = *pp; | |
4916 | if (! stab_demangle_qualified (minfo, pp, ptype)) | |
4917 | return false; | |
4918 | } | |
4919 | break; | |
4920 | ||
4921 | default: | |
4922 | if (! stab_demangle_fund_type (minfo, pp, ptype)) | |
4923 | return false; | |
4924 | break; | |
4925 | } | |
4926 | ||
4927 | return true; | |
4928 | } | |
4929 | ||
4930 | /* Demangle a fundamental type. If the ptype argument is not NULL, | |
4931 | *ptype is set to the newly allocated type. */ | |
4932 | ||
4933 | static boolean | |
4934 | stab_demangle_fund_type (minfo, pp, ptype) | |
4935 | struct stab_demangle_info *minfo; | |
4936 | const char **pp; | |
4937 | debug_type *ptype; | |
4938 | { | |
4939 | const char *orig; | |
4940 | boolean constp, volatilep, unsignedp, signedp; | |
4941 | boolean done; | |
4942 | ||
4943 | orig = *pp; | |
4944 | ||
4945 | constp = false; | |
4946 | volatilep = false; | |
4947 | unsignedp = false; | |
4948 | signedp = false; | |
4949 | ||
4950 | done = false; | |
4951 | while (! done) | |
4952 | { | |
4953 | switch (**pp) | |
4954 | { | |
4955 | case 'C': | |
4956 | constp = true; | |
4957 | ++*pp; | |
4958 | break; | |
4959 | ||
4960 | case 'U': | |
4961 | unsignedp = true; | |
4962 | ++*pp; | |
4963 | break; | |
4964 | ||
4965 | case 'S': | |
4966 | signedp = true; | |
4967 | ++*pp; | |
4968 | break; | |
4969 | ||
4970 | case 'V': | |
4971 | volatilep = true; | |
4972 | ++*pp; | |
4973 | break; | |
4974 | ||
4975 | default: | |
4976 | done = true; | |
4977 | break; | |
4978 | } | |
4979 | } | |
4980 | ||
4981 | switch (**pp) | |
4982 | { | |
4983 | case '\0': | |
4984 | case '_': | |
4985 | /* cplus_demangle permits this, but I don't know what it means. */ | |
4986 | stab_bad_demangle (orig); | |
4987 | break; | |
4988 | ||
4989 | case 'v': /* void */ | |
4990 | if (ptype != NULL) | |
4991 | { | |
4992 | *ptype = debug_find_named_type (minfo->dhandle, "void"); | |
4993 | if (*ptype == DEBUG_TYPE_NULL) | |
4994 | *ptype = debug_make_void_type (minfo->dhandle); | |
4995 | } | |
4996 | ++*pp; | |
4997 | break; | |
4998 | ||
4999 | case 'x': /* long long */ | |
5000 | if (ptype != NULL) | |
5001 | { | |
5002 | *ptype = debug_find_named_type (minfo->dhandle, | |
5003 | (unsignedp | |
5004 | ? "long long unsigned int" | |
5005 | : "long long int")); | |
5006 | if (*ptype == DEBUG_TYPE_NULL) | |
5007 | *ptype = debug_make_int_type (minfo->dhandle, 8, unsignedp); | |
5008 | } | |
5009 | ++*pp; | |
5010 | break; | |
5011 | ||
5012 | case 'l': /* long */ | |
5013 | if (ptype != NULL) | |
5014 | { | |
5015 | *ptype = debug_find_named_type (minfo->dhandle, | |
5016 | (unsignedp | |
5017 | ? "long unsigned int" | |
5018 | : "long int")); | |
5019 | if (*ptype == DEBUG_TYPE_NULL) | |
5020 | *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp); | |
5021 | } | |
5022 | ++*pp; | |
5023 | break; | |
5024 | ||
5025 | case 'i': /* int */ | |
5026 | if (ptype != NULL) | |
5027 | { | |
5028 | *ptype = debug_find_named_type (minfo->dhandle, | |
5029 | (unsignedp | |
5030 | ? "unsigned int" | |
5031 | : "int")); | |
5032 | if (*ptype == DEBUG_TYPE_NULL) | |
5033 | *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp); | |
5034 | } | |
5035 | ++*pp; | |
5036 | break; | |
5037 | ||
5038 | case 's': /* short */ | |
5039 | if (ptype != NULL) | |
5040 | { | |
5041 | *ptype = debug_find_named_type (minfo->dhandle, | |
5042 | (unsignedp | |
5043 | ? "short unsigned int" | |
5044 | : "short int")); | |
5045 | if (*ptype == DEBUG_TYPE_NULL) | |
5046 | *ptype = debug_make_int_type (minfo->dhandle, 2, unsignedp); | |
5047 | } | |
5048 | ++*pp; | |
5049 | break; | |
5050 | ||
5051 | case 'b': /* bool */ | |
5052 | if (ptype != NULL) | |
5053 | { | |
5054 | *ptype = debug_find_named_type (minfo->dhandle, "bool"); | |
5055 | if (*ptype == DEBUG_TYPE_NULL) | |
5056 | *ptype = debug_make_bool_type (minfo->dhandle, 4); | |
5057 | } | |
5058 | ++*pp; | |
5059 | break; | |
5060 | ||
5061 | case 'c': /* char */ | |
5062 | if (ptype != NULL) | |
5063 | { | |
5064 | *ptype = debug_find_named_type (minfo->dhandle, | |
5065 | (unsignedp | |
5066 | ? "unsigned char" | |
5067 | : (signedp | |
5068 | ? "signed char" | |
5069 | : "char"))); | |
5070 | if (*ptype == DEBUG_TYPE_NULL) | |
5071 | *ptype = debug_make_int_type (minfo->dhandle, 1, unsignedp); | |
5072 | } | |
5073 | ++*pp; | |
5074 | break; | |
5075 | ||
5076 | case 'w': /* wchar_t */ | |
5077 | if (ptype != NULL) | |
5078 | { | |
5079 | *ptype = debug_find_named_type (minfo->dhandle, "__wchar_t"); | |
5080 | if (*ptype == DEBUG_TYPE_NULL) | |
5081 | *ptype = debug_make_int_type (minfo->dhandle, 2, true); | |
5082 | } | |
5083 | ++*pp; | |
5084 | break; | |
5085 | ||
5086 | case 'r': /* long double */ | |
5087 | if (ptype != NULL) | |
5088 | { | |
5089 | *ptype = debug_find_named_type (minfo->dhandle, "long double"); | |
5090 | if (*ptype == DEBUG_TYPE_NULL) | |
5091 | *ptype = debug_make_float_type (minfo->dhandle, 8); | |
5092 | } | |
5093 | ++*pp; | |
5094 | break; | |
5095 | ||
5096 | case 'd': /* double */ | |
5097 | if (ptype != NULL) | |
5098 | { | |
5099 | *ptype = debug_find_named_type (minfo->dhandle, "double"); | |
5100 | if (*ptype == DEBUG_TYPE_NULL) | |
5101 | *ptype = debug_make_float_type (minfo->dhandle, 8); | |
5102 | } | |
5103 | ++*pp; | |
5104 | break; | |
5105 | ||
5106 | case 'f': /* float */ | |
5107 | if (ptype != NULL) | |
5108 | { | |
5109 | *ptype = debug_find_named_type (minfo->dhandle, "float"); | |
5110 | if (*ptype == DEBUG_TYPE_NULL) | |
5111 | *ptype = debug_make_float_type (minfo->dhandle, 4); | |
5112 | } | |
5113 | ++*pp; | |
5114 | break; | |
5115 | ||
5116 | case 'G': | |
5117 | ++*pp; | |
5118 | if (! isdigit ((unsigned char) **pp)) | |
5119 | { | |
5120 | stab_bad_demangle (orig); | |
5121 | return false; | |
5122 | } | |
5123 | /* Fall through. */ | |
5124 | case '0': case '1': case '2': case '3': case '4': | |
5125 | case '5': case '6': case '7': case '8': case '9': | |
5126 | { | |
5127 | const char *hold; | |
5128 | ||
5129 | if (! stab_demangle_class (minfo, pp, &hold)) | |
5130 | return false; | |
5131 | if (ptype != NULL) | |
5132 | { | |
5133 | char *name; | |
5134 | ||
5135 | name = savestring (hold, *pp - hold); | |
5136 | *ptype = debug_find_named_type (minfo->dhandle, name); | |
5137 | free (name); | |
5138 | if (*ptype == DEBUG_TYPE_NULL) | |
5139 | { | |
5140 | /* FIXME: It is probably incorrect to assume that | |
5141 | undefined types are tagged types. */ | |
5142 | *ptype = stab_find_tagged_type (minfo->dhandle, minfo->info, | |
5143 | hold, *pp - hold, | |
5144 | DEBUG_KIND_ILLEGAL); | |
5145 | if (*ptype == DEBUG_TYPE_NULL) | |
5146 | return false; | |
5147 | } | |
5148 | } | |
5149 | } | |
5150 | break; | |
5151 | ||
5152 | case 't': | |
5153 | { | |
5154 | char *name; | |
5155 | ||
5156 | if (! stab_demangle_template (minfo, pp, | |
5157 | ptype != NULL ? &name : NULL)) | |
5158 | return false; | |
5159 | if (ptype != NULL) | |
5160 | { | |
5161 | *ptype = stab_find_tagged_type (minfo->dhandle, minfo->info, | |
5162 | name, strlen (name), | |
5163 | DEBUG_KIND_CLASS); | |
5164 | free (name); | |
5165 | if (*ptype == DEBUG_TYPE_NULL) | |
5166 | return false; | |
5167 | } | |
5168 | } | |
5169 | break; | |
5170 | ||
5171 | default: | |
5172 | stab_bad_demangle (orig); | |
5173 | return false; | |
5174 | } | |
5175 | ||
5176 | if (ptype != NULL) | |
5177 | { | |
5178 | if (constp) | |
5179 | *ptype = debug_make_const_type (minfo->dhandle, *ptype); | |
5180 | if (volatilep) | |
5181 | *ptype = debug_make_volatile_type (minfo->dhandle, *ptype); | |
5182 | } | |
5183 | ||
5184 | return true; | |
5185 | } | |
5186 | ||
5187 | /* Remember a type string in a demangled string. */ | |
5188 | ||
5189 | static boolean | |
5190 | stab_demangle_remember_type (minfo, p, len) | |
5191 | struct stab_demangle_info *minfo; | |
5192 | const char *p; | |
5193 | int len; | |
5194 | { | |
5195 | if (minfo->typestring_count >= minfo->typestring_alloc) | |
5196 | { | |
5197 | minfo->typestring_alloc += 10; | |
5198 | minfo->typestrings = ((struct stab_demangle_typestring *) | |
5199 | xrealloc (minfo->typestrings, | |
5200 | (minfo->typestring_alloc | |
5201 | * sizeof *minfo->typestrings))); | |
5202 | } | |
5203 | ||
5204 | minfo->typestrings[minfo->typestring_count].typestring = p; | |
5205 | minfo->typestrings[minfo->typestring_count].len = (unsigned int) len; | |
5206 | ++minfo->typestring_count; | |
5207 | ||
5208 | return true; | |
5209 | } |