File: | src/gnu/usr.bin/binutils-2.17/binutils/stabs.c |
Warning: | line 712, column 5 Value stored to 'lineno' is never read |
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1 | /* stabs.c -- Parse stabs debugging information |
2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
3 | Free Software Foundation, Inc. |
4 | Written by Ian Lance Taylor <ian@cygnus.com>. |
5 | |
6 | This file is part of GNU Binutils. |
7 | |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by |
10 | the Free Software Foundation; either version 2 of the License, or |
11 | (at your option) any later version. |
12 | |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ |
22 | |
23 | /* This file contains code which parses stabs debugging information. |
24 | The organization of this code is based on the gdb stabs reading |
25 | code. The job it does is somewhat different, because it is not |
26 | trying to identify the correct address for anything. */ |
27 | |
28 | #include <stdio.h> |
29 | |
30 | #include "bfd.h" |
31 | #include "bucomm.h" |
32 | #include "libiberty.h" |
33 | #include "safe-ctype.h" |
34 | #include "demangle.h" |
35 | #include "debug.h" |
36 | #include "budbg.h" |
37 | #include "filenames.h" |
38 | #include "aout/aout64.h" |
39 | #include "aout/stab_gnu.h" |
40 | |
41 | /* The number of predefined XCOFF types. */ |
42 | |
43 | #define XCOFF_TYPE_COUNT34 34 |
44 | |
45 | /* This structure is used as a handle so that the stab parsing doesn't |
46 | need to use any static variables. */ |
47 | |
48 | struct stab_handle |
49 | { |
50 | /* The BFD. */ |
51 | bfd *abfd; |
52 | /* TRUE if this is stabs in sections. */ |
53 | bfd_boolean sections; |
54 | /* The symbol table. */ |
55 | asymbol **syms; |
56 | /* The number of symbols. */ |
57 | long symcount; |
58 | /* The accumulated file name string. */ |
59 | char *so_string; |
60 | /* The value of the last N_SO symbol. */ |
61 | bfd_vma so_value; |
62 | /* The value of the start of the file, so that we can handle file |
63 | relative N_LBRAC and N_RBRAC symbols. */ |
64 | bfd_vma file_start_offset; |
65 | /* The offset of the start of the function, so that we can handle |
66 | function relative N_LBRAC and N_RBRAC symbols. */ |
67 | bfd_vma function_start_offset; |
68 | /* The version number of gcc which compiled the current compilation |
69 | unit, 0 if not compiled by gcc. */ |
70 | int gcc_compiled; |
71 | /* Whether an N_OPT symbol was seen that was not generated by gcc, |
72 | so that we can detect the SunPRO compiler. */ |
73 | bfd_boolean n_opt_found; |
74 | /* The main file name. */ |
75 | char *main_filename; |
76 | /* A stack of unfinished N_BINCL files. */ |
77 | struct bincl_file *bincl_stack; |
78 | /* A list of finished N_BINCL files. */ |
79 | struct bincl_file *bincl_list; |
80 | /* Whether we are inside a function or not. */ |
81 | bfd_boolean within_function; |
82 | /* The address of the end of the function, used if we have seen an |
83 | N_FUN symbol while in a function. This is -1 if we have not seen |
84 | an N_FUN (the normal case). */ |
85 | bfd_vma function_end; |
86 | /* The depth of block nesting. */ |
87 | int block_depth; |
88 | /* List of pending variable definitions. */ |
89 | struct stab_pending_var *pending; |
90 | /* Number of files for which we have types. */ |
91 | unsigned int files; |
92 | /* Lists of types per file. */ |
93 | struct stab_types **file_types; |
94 | /* Predefined XCOFF types. */ |
95 | debug_type xcoff_types[XCOFF_TYPE_COUNT34]; |
96 | /* Undefined tags. */ |
97 | struct stab_tag *tags; |
98 | /* Set by parse_stab_type if it sees a structure defined as a cross |
99 | reference to itself. Reset by parse_stab_type otherwise. */ |
100 | bfd_boolean self_crossref; |
101 | }; |
102 | |
103 | /* A list of these structures is used to hold pending variable |
104 | definitions seen before the N_LBRAC of a block. */ |
105 | |
106 | struct stab_pending_var |
107 | { |
108 | /* Next pending variable definition. */ |
109 | struct stab_pending_var *next; |
110 | /* Name. */ |
111 | const char *name; |
112 | /* Type. */ |
113 | debug_type type; |
114 | /* Kind. */ |
115 | enum debug_var_kind kind; |
116 | /* Value. */ |
117 | bfd_vma val; |
118 | }; |
119 | |
120 | /* A list of these structures is used to hold the types for a single |
121 | file. */ |
122 | |
123 | struct stab_types |
124 | { |
125 | /* Next set of slots for this file. */ |
126 | struct stab_types *next; |
127 | /* Types indexed by type number. */ |
128 | #define STAB_TYPES_SLOTS(16) (16) |
129 | debug_type types[STAB_TYPES_SLOTS(16)]; |
130 | }; |
131 | |
132 | /* We keep a list of undefined tags that we encounter, so that we can |
133 | fill them in if the tag is later defined. */ |
134 | |
135 | struct stab_tag |
136 | { |
137 | /* Next undefined tag. */ |
138 | struct stab_tag *next; |
139 | /* Tag name. */ |
140 | const char *name; |
141 | /* Type kind. */ |
142 | enum debug_type_kind kind; |
143 | /* Slot to hold real type when we discover it. If we don't, we fill |
144 | in an undefined tag type. */ |
145 | debug_type slot; |
146 | /* Indirect type we have created to point at slot. */ |
147 | debug_type type; |
148 | }; |
149 | |
150 | static char *savestring (const char *, int); |
151 | static bfd_vma parse_number (const char **, bfd_boolean *); |
152 | static void bad_stab (const char *); |
153 | static void warn_stab (const char *, const char *); |
154 | static bfd_boolean parse_stab_string |
155 | (void *, struct stab_handle *, int, int, bfd_vma, const char *); |
156 | static debug_type parse_stab_type |
157 | (void *, struct stab_handle *, const char *, const char **, debug_type **); |
158 | static bfd_boolean parse_stab_type_number (const char **, int *); |
159 | static debug_type parse_stab_range_type |
160 | (void *, struct stab_handle *, const char *, const char **, const int *); |
161 | static debug_type parse_stab_sun_builtin_type (void *, const char **); |
162 | static debug_type parse_stab_sun_floating_type (void *, const char **); |
163 | static debug_type parse_stab_enum_type (void *, const char **); |
164 | static debug_type parse_stab_struct_type |
165 | (void *, struct stab_handle *, const char *, const char **, |
166 | bfd_boolean, const int *); |
167 | static bfd_boolean parse_stab_baseclasses |
168 | (void *, struct stab_handle *, const char **, debug_baseclass **); |
169 | static bfd_boolean parse_stab_struct_fields |
170 | (void *, struct stab_handle *, const char **, debug_field **, bfd_boolean *); |
171 | static bfd_boolean parse_stab_cpp_abbrev |
172 | (void *, struct stab_handle *, const char **, debug_field *); |
173 | static bfd_boolean parse_stab_one_struct_field |
174 | (void *, struct stab_handle *, const char **, const char *, |
175 | debug_field *, bfd_boolean *); |
176 | static bfd_boolean parse_stab_members |
177 | (void *, struct stab_handle *, const char *, const char **, const int *, |
178 | debug_method **); |
179 | static debug_type parse_stab_argtypes |
180 | (void *, struct stab_handle *, debug_type, const char *, const char *, |
181 | debug_type, const char *, bfd_boolean, bfd_boolean, const char **); |
182 | static bfd_boolean parse_stab_tilde_field |
183 | (void *, struct stab_handle *, const char **, const int *, debug_type *, |
184 | bfd_boolean *); |
185 | static debug_type parse_stab_array_type |
186 | (void *, struct stab_handle *, const char **, bfd_boolean); |
187 | static void push_bincl (struct stab_handle *, const char *, bfd_vma); |
188 | static const char *pop_bincl (struct stab_handle *); |
189 | static bfd_boolean find_excl (struct stab_handle *, const char *, bfd_vma); |
190 | static bfd_boolean stab_record_variable |
191 | (void *, struct stab_handle *, const char *, debug_type, |
192 | enum debug_var_kind, bfd_vma); |
193 | static bfd_boolean stab_emit_pending_vars (void *, struct stab_handle *); |
194 | static debug_type *stab_find_slot (struct stab_handle *, const int *); |
195 | static debug_type stab_find_type (void *, struct stab_handle *, const int *); |
196 | static bfd_boolean stab_record_type |
197 | (void *, struct stab_handle *, const int *, debug_type); |
198 | static debug_type stab_xcoff_builtin_type |
199 | (void *, struct stab_handle *, int); |
200 | static debug_type stab_find_tagged_type |
201 | (void *, struct stab_handle *, const char *, int, enum debug_type_kind); |
202 | static debug_type *stab_demangle_argtypes |
203 | (void *, struct stab_handle *, const char *, bfd_boolean *, unsigned int); |
204 | static debug_type *stab_demangle_v3_argtypes |
205 | (void *, struct stab_handle *, const char *, bfd_boolean *); |
206 | static debug_type *stab_demangle_v3_arglist |
207 | (void *, struct stab_handle *, struct demangle_component *, bfd_boolean *); |
208 | static debug_type stab_demangle_v3_arg |
209 | (void *, struct stab_handle *, struct demangle_component *, debug_type, |
210 | bfd_boolean *); |
211 | |
212 | /* Save a string in memory. */ |
213 | |
214 | static char * |
215 | savestring (const char *start, int len) |
216 | { |
217 | char *ret; |
218 | |
219 | ret = (char *) xmalloc (len + 1); |
220 | memcpy (ret, start, len); |
221 | ret[len] = '\0'; |
222 | return ret; |
223 | } |
224 | |
225 | /* Read a number from a string. */ |
226 | |
227 | static bfd_vma |
228 | parse_number (const char **pp, bfd_boolean *poverflow) |
229 | { |
230 | unsigned long ul; |
231 | const char *orig; |
232 | |
233 | if (poverflow != NULL((void*)0)) |
234 | *poverflow = FALSE0; |
235 | |
236 | orig = *pp; |
237 | |
238 | errno(*__errno()) = 0; |
239 | ul = strtoul (*pp, (char **) pp, 0); |
240 | if (ul + 1 != 0 || errno(*__errno()) == 0) |
241 | { |
242 | /* If bfd_vma is larger than unsigned long, and the number is |
243 | meant to be negative, we have to make sure that we sign |
244 | extend properly. */ |
245 | if (*orig == '-') |
246 | return (bfd_vma) (bfd_signed_vma) (long) ul; |
247 | return (bfd_vma) ul; |
248 | } |
249 | |
250 | /* Note that even though strtoul overflowed, it should have set *pp |
251 | to the end of the number, which is where we want it. */ |
252 | if (sizeof (bfd_vma) > sizeof (unsigned long)) |
253 | { |
254 | const char *p; |
255 | bfd_boolean neg; |
256 | int base; |
257 | bfd_vma over, lastdig; |
258 | bfd_boolean overflow; |
259 | bfd_vma v; |
260 | |
261 | /* Our own version of strtoul, for a bfd_vma. */ |
262 | p = orig; |
263 | |
264 | neg = FALSE0; |
265 | if (*p == '+') |
266 | ++p; |
267 | else if (*p == '-') |
268 | { |
269 | neg = TRUE1; |
270 | ++p; |
271 | } |
272 | |
273 | base = 10; |
274 | if (*p == '0') |
275 | { |
276 | if (p[1] == 'x' || p[1] == 'X') |
277 | { |
278 | base = 16; |
279 | p += 2; |
280 | } |
281 | else |
282 | { |
283 | base = 8; |
284 | ++p; |
285 | } |
286 | } |
287 | |
288 | over = ((bfd_vma) (bfd_signed_vma) -1) / (bfd_vma) base; |
289 | lastdig = ((bfd_vma) (bfd_signed_vma) -1) % (bfd_vma) base; |
290 | |
291 | overflow = FALSE0; |
292 | v = 0; |
293 | while (1) |
294 | { |
295 | int d; |
296 | |
297 | d = *p++; |
298 | if (ISDIGIT (d)(_sch_istable[(d) & 0xff] & (unsigned short)(_sch_isdigit ))) |
299 | d -= '0'; |
300 | else if (ISUPPER (d)(_sch_istable[(d) & 0xff] & (unsigned short)(_sch_isupper ))) |
301 | d -= 'A'; |
302 | else if (ISLOWER (d)(_sch_istable[(d) & 0xff] & (unsigned short)(_sch_islower ))) |
303 | d -= 'a'; |
304 | else |
305 | break; |
306 | |
307 | if (d >= base) |
308 | break; |
309 | |
310 | if (v > over || (v == over && (bfd_vma) d > lastdig)) |
311 | { |
312 | overflow = TRUE1; |
313 | break; |
314 | } |
315 | } |
316 | |
317 | if (! overflow) |
318 | { |
319 | if (neg) |
320 | v = - v; |
321 | return v; |
322 | } |
323 | } |
324 | |
325 | /* If we get here, the number is too large to represent in a |
326 | bfd_vma. */ |
327 | if (poverflow != NULL((void*)0)) |
328 | *poverflow = TRUE1; |
329 | else |
330 | warn_stab (orig, _("numeric overflow")("numeric overflow")); |
331 | |
332 | return 0; |
333 | } |
334 | |
335 | /* Give an error for a bad stab string. */ |
336 | |
337 | static void |
338 | bad_stab (const char *p) |
339 | { |
340 | fprintf (stderr(&__sF[2]), _("Bad stab: %s\n")("Bad stab: %s\n"), p); |
341 | } |
342 | |
343 | /* Warn about something in a stab string. */ |
344 | |
345 | static void |
346 | warn_stab (const char *p, const char *err) |
347 | { |
348 | fprintf (stderr(&__sF[2]), _("Warning: %s: %s\n")("Warning: %s: %s\n"), err, p); |
349 | } |
350 | |
351 | /* Create a handle to parse stabs symbols with. */ |
352 | |
353 | void * |
354 | start_stab (void *dhandle ATTRIBUTE_UNUSED__attribute__ ((__unused__)), bfd *abfd, bfd_boolean sections, |
355 | asymbol **syms, long symcount) |
356 | { |
357 | struct stab_handle *ret; |
358 | |
359 | ret = (struct stab_handle *) xmalloc (sizeof *ret); |
360 | memset (ret, 0, sizeof *ret); |
361 | ret->abfd = abfd; |
362 | ret->sections = sections; |
363 | ret->syms = syms; |
364 | ret->symcount = symcount; |
365 | ret->files = 1; |
366 | ret->file_types = (struct stab_types **) xmalloc (sizeof *ret->file_types); |
367 | ret->file_types[0] = NULL((void*)0); |
368 | ret->function_end = (bfd_vma) -1; |
369 | return (void *) ret; |
370 | } |
371 | |
372 | /* When we have processed all the stabs information, we need to go |
373 | through and fill in all the undefined tags. */ |
374 | |
375 | bfd_boolean |
376 | finish_stab (void *dhandle, void *handle) |
377 | { |
378 | struct stab_handle *info = (struct stab_handle *) handle; |
379 | struct stab_tag *st; |
380 | |
381 | if (info->within_function) |
382 | { |
383 | if (! stab_emit_pending_vars (dhandle, info) |
384 | || ! debug_end_function (dhandle, info->function_end)) |
385 | return FALSE0; |
386 | info->within_function = FALSE0; |
387 | info->function_end = (bfd_vma) -1; |
388 | } |
389 | |
390 | for (st = info->tags; st != NULL((void*)0); st = st->next) |
391 | { |
392 | enum debug_type_kind kind; |
393 | |
394 | kind = st->kind; |
395 | if (kind == DEBUG_KIND_ILLEGAL) |
396 | kind = DEBUG_KIND_STRUCT; |
397 | st->slot = debug_make_undefined_tagged_type (dhandle, st->name, kind); |
398 | if (st->slot == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
399 | return FALSE0; |
400 | } |
401 | |
402 | return TRUE1; |
403 | } |
404 | |
405 | /* Handle a single stabs symbol. */ |
406 | |
407 | bfd_boolean |
408 | parse_stab (void *dhandle, void *handle, int type, int desc, bfd_vma value, |
409 | const char *string) |
410 | { |
411 | struct stab_handle *info = (struct stab_handle *) handle; |
412 | |
413 | /* gcc will emit two N_SO strings per compilation unit, one for the |
414 | directory name and one for the file name. We just collect N_SO |
415 | strings as we see them, and start the new compilation unit when |
416 | we see a non N_SO symbol. */ |
417 | if (info->so_string != NULL((void*)0) |
418 | && (type != N_SO || *string == '\0' || value != info->so_value)) |
419 | { |
420 | if (! debug_set_filename (dhandle, info->so_string)) |
421 | return FALSE0; |
422 | info->main_filename = info->so_string; |
423 | |
424 | info->gcc_compiled = 0; |
425 | info->n_opt_found = FALSE0; |
426 | |
427 | /* Generally, for stabs in the symbol table, the N_LBRAC and |
428 | N_RBRAC symbols are relative to the N_SO symbol value. */ |
429 | if (! info->sections) |
430 | info->file_start_offset = info->so_value; |
431 | |
432 | /* We need to reset the mapping from type numbers to types. We |
433 | can't free the old mapping, because of the use of |
434 | debug_make_indirect_type. */ |
435 | info->files = 1; |
436 | info->file_types = ((struct stab_types **) |
437 | xmalloc (sizeof *info->file_types)); |
438 | info->file_types[0] = NULL((void*)0); |
439 | |
440 | info->so_string = NULL((void*)0); |
441 | |
442 | /* Now process whatever type we just got. */ |
443 | } |
444 | |
445 | switch (type) |
446 | { |
447 | case N_FN0x1f: |
448 | case N_FN_SEQ0x0C: |
449 | break; |
450 | |
451 | case N_LBRAC: |
452 | /* Ignore extra outermost context from SunPRO cc and acc. */ |
453 | if (info->n_opt_found && desc == 1) |
454 | break; |
455 | |
456 | if (! info->within_function) |
457 | { |
458 | fprintf (stderr(&__sF[2]), _("N_LBRAC not within function\n")("N_LBRAC not within function\n")); |
459 | return FALSE0; |
460 | } |
461 | |
462 | /* Start an inner lexical block. */ |
463 | if (! debug_start_block (dhandle, |
464 | (value |
465 | + info->file_start_offset |
466 | + info->function_start_offset))) |
467 | return FALSE0; |
468 | |
469 | /* Emit any pending variable definitions. */ |
470 | if (! stab_emit_pending_vars (dhandle, info)) |
471 | return FALSE0; |
472 | |
473 | ++info->block_depth; |
474 | break; |
475 | |
476 | case N_RBRAC: |
477 | /* Ignore extra outermost context from SunPRO cc and acc. */ |
478 | if (info->n_opt_found && desc == 1) |
479 | break; |
480 | |
481 | /* We shouldn't have any pending variable definitions here, but, |
482 | if we do, we probably need to emit them before closing the |
483 | block. */ |
484 | if (! stab_emit_pending_vars (dhandle, info)) |
485 | return FALSE0; |
486 | |
487 | /* End an inner lexical block. */ |
488 | if (! debug_end_block (dhandle, |
489 | (value |
490 | + info->file_start_offset |
491 | + info->function_start_offset))) |
492 | return FALSE0; |
493 | |
494 | --info->block_depth; |
495 | if (info->block_depth < 0) |
496 | { |
497 | fprintf (stderr(&__sF[2]), _("Too many N_RBRACs\n")("Too many N_RBRACs\n")); |
498 | return FALSE0; |
499 | } |
500 | break; |
501 | |
502 | case N_SO: |
503 | /* This always ends a function. */ |
504 | if (info->within_function) |
505 | { |
506 | bfd_vma endval; |
507 | |
508 | endval = value; |
509 | if (*string != '\0' |
510 | && info->function_end != (bfd_vma) -1 |
511 | && info->function_end < endval) |
512 | endval = info->function_end; |
513 | if (! stab_emit_pending_vars (dhandle, info) |
514 | || ! debug_end_function (dhandle, endval)) |
515 | return FALSE0; |
516 | info->within_function = FALSE0; |
517 | info->function_end = (bfd_vma) -1; |
518 | } |
519 | |
520 | /* An empty string is emitted by gcc at the end of a compilation |
521 | unit. */ |
522 | if (*string == '\0') |
523 | return TRUE1; |
524 | |
525 | /* Just accumulate strings until we see a non N_SO symbol. If |
526 | the string starts with a directory separator or some other |
527 | form of absolute path specification, we discard the previously |
528 | accumulated strings. */ |
529 | if (info->so_string == NULL((void*)0)) |
530 | info->so_string = xstrdup (string); |
531 | else |
532 | { |
533 | char *f; |
534 | |
535 | f = info->so_string; |
536 | |
537 | if (IS_ABSOLUTE_PATH (string)((((string)[0]) == '/'))) |
538 | info->so_string = xstrdup (string); |
539 | else |
540 | info->so_string = concat (info->so_string, string, |
541 | (const char *) NULL((void*)0)); |
542 | free (f); |
543 | } |
544 | |
545 | info->so_value = value; |
546 | |
547 | break; |
548 | |
549 | case N_SOL: |
550 | /* Start an include file. */ |
551 | if (! debug_start_source (dhandle, string)) |
552 | return FALSE0; |
553 | break; |
554 | |
555 | case N_BINCL: |
556 | /* Start an include file which may be replaced. */ |
557 | push_bincl (info, string, value); |
558 | if (! debug_start_source (dhandle, string)) |
559 | return FALSE0; |
560 | break; |
561 | |
562 | case N_EINCL: |
563 | /* End an N_BINCL include. */ |
564 | if (! debug_start_source (dhandle, pop_bincl (info))) |
565 | return FALSE0; |
566 | break; |
567 | |
568 | case N_EXCL: |
569 | /* This is a duplicate of a header file named by N_BINCL which |
570 | was eliminated by the linker. */ |
571 | if (! find_excl (info, string, value)) |
572 | return FALSE0; |
573 | break; |
574 | |
575 | case N_SLINE: |
576 | if (! debug_record_line (dhandle, desc, |
577 | value + (info->within_function |
578 | ? info->function_start_offset : 0))) |
579 | return FALSE0; |
580 | break; |
581 | |
582 | case N_BCOMM: |
583 | if (! debug_start_common_block (dhandle, string)) |
584 | return FALSE0; |
585 | break; |
586 | |
587 | case N_ECOMM: |
588 | if (! debug_end_common_block (dhandle, string)) |
589 | return FALSE0; |
590 | break; |
591 | |
592 | case N_FUN: |
593 | if (*string == '\0') |
594 | { |
595 | if (info->within_function) |
596 | { |
597 | /* This always marks the end of a function; we don't |
598 | need to worry about info->function_end. */ |
599 | if (info->sections) |
600 | value += info->function_start_offset; |
601 | if (! stab_emit_pending_vars (dhandle, info) |
602 | || ! debug_end_function (dhandle, value)) |
603 | return FALSE0; |
604 | info->within_function = FALSE0; |
605 | info->function_end = (bfd_vma) -1; |
606 | } |
607 | break; |
608 | } |
609 | |
610 | /* A const static symbol in the .text section will have an N_FUN |
611 | entry. We need to use these to mark the end of the function, |
612 | in case we are looking at gcc output before it was changed to |
613 | always emit an empty N_FUN. We can't call debug_end_function |
614 | here, because it might be a local static symbol. */ |
615 | if (info->within_function |
616 | && (info->function_end == (bfd_vma) -1 |
617 | || value < info->function_end)) |
618 | info->function_end = value; |
619 | |
620 | /* Fall through. */ |
621 | /* FIXME: gdb checks the string for N_STSYM, N_LCSYM or N_ROSYM |
622 | symbols, and if it does not start with :S, gdb relocates the |
623 | value to the start of the section. gcc always seems to use |
624 | :S, so we don't worry about this. */ |
625 | /* Fall through. */ |
626 | default: |
627 | { |
628 | const char *colon; |
629 | |
630 | colon = strchr (string, ':'); |
631 | if (colon != NULL((void*)0) |
632 | && (colon[1] == 'f' || colon[1] == 'F')) |
633 | { |
634 | if (info->within_function) |
635 | { |
636 | bfd_vma endval; |
637 | |
638 | endval = value; |
639 | if (info->function_end != (bfd_vma) -1 |
640 | && info->function_end < endval) |
641 | endval = info->function_end; |
642 | if (! stab_emit_pending_vars (dhandle, info) |
643 | || ! debug_end_function (dhandle, endval)) |
644 | return FALSE0; |
645 | info->function_end = (bfd_vma) -1; |
646 | } |
647 | /* For stabs in sections, line numbers and block addresses |
648 | are offsets from the start of the function. */ |
649 | if (info->sections) |
650 | info->function_start_offset = value; |
651 | info->within_function = TRUE1; |
652 | } |
653 | |
654 | if (! parse_stab_string (dhandle, info, type, desc, value, string)) |
655 | return FALSE0; |
656 | } |
657 | break; |
658 | |
659 | case N_OPT: |
660 | if (string != NULL((void*)0) && strcmp (string, "gcc2_compiled.") == 0) |
661 | info->gcc_compiled = 2; |
662 | else if (string != NULL((void*)0) && strcmp (string, "gcc_compiled.") == 0) |
663 | info->gcc_compiled = 1; |
664 | else |
665 | info->n_opt_found = TRUE1; |
666 | break; |
667 | |
668 | case N_OBJ: |
669 | case N_ENDM: |
670 | case N_MAIN: |
671 | case N_WARNING0x1e: |
672 | break; |
673 | } |
674 | |
675 | return TRUE1; |
676 | } |
677 | |
678 | /* Parse the stabs string. */ |
679 | |
680 | static bfd_boolean |
681 | parse_stab_string (void *dhandle, struct stab_handle *info, int stabtype, |
682 | int desc, bfd_vma value, const char *string) |
683 | { |
684 | const char *p; |
685 | char *name; |
686 | int type; |
687 | debug_type dtype; |
688 | bfd_boolean synonym; |
689 | bfd_boolean self_crossref; |
690 | unsigned int lineno; |
691 | debug_type *slot; |
692 | |
693 | p = strchr (string, ':'); |
694 | if (p == NULL((void*)0)) |
695 | return TRUE1; |
696 | |
697 | while (p[1] == ':') |
698 | { |
699 | p += 2; |
700 | p = strchr (p, ':'); |
701 | if (p == NULL((void*)0)) |
702 | { |
703 | bad_stab (string); |
704 | return FALSE0; |
705 | } |
706 | } |
707 | |
708 | /* GCC 2.x puts the line number in desc. SunOS apparently puts in |
709 | the number of bytes occupied by a type or object, which we |
710 | ignore. */ |
711 | if (info->gcc_compiled >= 2) |
712 | lineno = desc; |
Value stored to 'lineno' is never read | |
713 | else |
714 | lineno = 0; |
715 | |
716 | /* FIXME: Sometimes the special C++ names start with '.'. */ |
717 | name = NULL((void*)0); |
718 | if (string[0] == '$') |
719 | { |
720 | switch (string[1]) |
721 | { |
722 | case 't': |
723 | name = "this"; |
724 | break; |
725 | case 'v': |
726 | /* Was: name = "vptr"; */ |
727 | break; |
728 | case 'e': |
729 | name = "eh_throw"; |
730 | break; |
731 | case '_': |
732 | /* This was an anonymous type that was never fixed up. */ |
733 | break; |
734 | case 'X': |
735 | /* SunPRO (3.0 at least) static variable encoding. */ |
736 | break; |
737 | default: |
738 | warn_stab (string, _("unknown C++ encoded name")("unknown C++ encoded name")); |
739 | break; |
740 | } |
741 | } |
742 | |
743 | if (name == NULL((void*)0)) |
744 | { |
745 | if (p == string || (string[0] == ' ' && p == string + 1)) |
746 | name = NULL((void*)0); |
747 | else |
748 | name = savestring (string, p - string); |
749 | } |
750 | |
751 | ++p; |
752 | if (ISDIGIT (*p)(_sch_istable[(*p) & 0xff] & (unsigned short)(_sch_isdigit )) || *p == '(' || *p == '-') |
753 | type = 'l'; |
754 | else |
755 | type = *p++; |
756 | |
757 | switch (type) |
758 | { |
759 | case 'c': |
760 | /* c is a special case, not followed by a type-number. |
761 | SYMBOL:c=iVALUE for an integer constant symbol. |
762 | SYMBOL:c=rVALUE for a floating constant symbol. |
763 | SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol. |
764 | e.g. "b:c=e6,0" for "const b = blob1" |
765 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ |
766 | if (*p != '=') |
767 | { |
768 | bad_stab (string); |
769 | return FALSE0; |
770 | } |
771 | ++p; |
772 | switch (*p++) |
773 | { |
774 | case 'r': |
775 | /* Floating point constant. */ |
776 | if (! debug_record_float_const (dhandle, name, atof (p))) |
777 | return FALSE0; |
778 | break; |
779 | case 'i': |
780 | /* Integer constant. */ |
781 | /* Defining integer constants this way is kind of silly, |
782 | since 'e' constants allows the compiler to give not only |
783 | the value, but the type as well. C has at least int, |
784 | long, unsigned int, and long long as constant types; |
785 | other languages probably should have at least unsigned as |
786 | well as signed constants. */ |
787 | if (! debug_record_int_const (dhandle, name, atoi (p))) |
788 | return FALSE0; |
789 | break; |
790 | case 'e': |
791 | /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value |
792 | can be represented as integral. |
793 | e.g. "b:c=e6,0" for "const b = blob1" |
794 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ |
795 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), |
796 | &p, (debug_type **) NULL((void*)0)); |
797 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
798 | return FALSE0; |
799 | if (*p != ',') |
800 | { |
801 | bad_stab (string); |
802 | return FALSE0; |
803 | } |
804 | if (! debug_record_typed_const (dhandle, name, dtype, atoi (p))) |
805 | return FALSE0; |
806 | break; |
807 | default: |
808 | bad_stab (string); |
809 | return FALSE0; |
810 | } |
811 | |
812 | break; |
813 | |
814 | case 'C': |
815 | /* The name of a caught exception. */ |
816 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), |
817 | &p, (debug_type **) NULL((void*)0)); |
818 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
819 | return FALSE0; |
820 | if (! debug_record_label (dhandle, name, dtype, value)) |
821 | return FALSE0; |
822 | break; |
823 | |
824 | case 'f': |
825 | case 'F': |
826 | /* A function definition. */ |
827 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
828 | (debug_type **) NULL((void*)0)); |
829 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
830 | return FALSE0; |
831 | if (! debug_record_function (dhandle, name, dtype, type == 'F', value)) |
832 | return FALSE0; |
833 | |
834 | /* Sun acc puts declared types of arguments here. We don't care |
835 | about their actual types (FIXME -- we should remember the whole |
836 | function prototype), but the list may define some new types |
837 | that we have to remember, so we must scan it now. */ |
838 | while (*p == ';') |
839 | { |
840 | ++p; |
841 | if (parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
842 | (debug_type **) NULL((void*)0)) |
843 | == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
844 | return FALSE0; |
845 | } |
846 | |
847 | break; |
848 | |
849 | case 'G': |
850 | { |
851 | char leading; |
852 | long c; |
853 | asymbol **ps; |
854 | |
855 | /* A global symbol. The value must be extracted from the |
856 | symbol table. */ |
857 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
858 | (debug_type **) NULL((void*)0)); |
859 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
860 | return FALSE0; |
861 | leading = bfd_get_symbol_leading_char (info->abfd)((info->abfd)->xvec->symbol_leading_char); |
862 | for (c = info->symcount, ps = info->syms; c > 0; --c, ++ps) |
863 | { |
864 | const char *n; |
865 | |
866 | n = bfd_asymbol_name (*ps)((*ps)->name); |
867 | if (leading != '\0' && *n == leading) |
868 | ++n; |
869 | if (*n == *name && strcmp (n, name) == 0) |
870 | break; |
871 | } |
872 | if (c > 0) |
873 | value = bfd_asymbol_value (*ps)(((*ps)->section->vma) + (*ps)->value); |
874 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_GLOBAL, |
875 | value)) |
876 | return FALSE0; |
877 | } |
878 | break; |
879 | |
880 | /* This case is faked by a conditional above, when there is no |
881 | code letter in the dbx data. Dbx data never actually |
882 | contains 'l'. */ |
883 | case 'l': |
884 | case 's': |
885 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
886 | (debug_type **) NULL((void*)0)); |
887 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
888 | return FALSE0; |
889 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL, |
890 | value)) |
891 | return FALSE0; |
892 | break; |
893 | |
894 | case 'p': |
895 | /* A function parameter. */ |
896 | if (*p != 'F') |
897 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
898 | (debug_type **) NULL((void*)0)); |
899 | else |
900 | { |
901 | /* pF is a two-letter code that means a function parameter in |
902 | Fortran. The type-number specifies the type of the return |
903 | value. Translate it into a pointer-to-function type. */ |
904 | ++p; |
905 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
906 | (debug_type **) NULL((void*)0)); |
907 | if (dtype != DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
908 | { |
909 | debug_type ftype; |
910 | |
911 | ftype = debug_make_function_type (dhandle, dtype, |
912 | (debug_type *) NULL((void*)0), FALSE0); |
913 | dtype = debug_make_pointer_type (dhandle, ftype); |
914 | } |
915 | } |
916 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
917 | return FALSE0; |
918 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_STACK, |
919 | value)) |
920 | return FALSE0; |
921 | |
922 | /* FIXME: At this point gdb considers rearranging the parameter |
923 | address on a big endian machine if it is smaller than an int. |
924 | We have no way to do that, since we don't really know much |
925 | about the target. */ |
926 | break; |
927 | |
928 | case 'P': |
929 | if (stabtype == N_FUN) |
930 | { |
931 | /* Prototype of a function referenced by this file. */ |
932 | while (*p == ';') |
933 | { |
934 | ++p; |
935 | if (parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
936 | (debug_type **) NULL((void*)0)) |
937 | == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
938 | return FALSE0; |
939 | } |
940 | break; |
941 | } |
942 | /* Fall through. */ |
943 | case 'R': |
944 | /* Parameter which is in a register. */ |
945 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
946 | (debug_type **) NULL((void*)0)); |
947 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
948 | return FALSE0; |
949 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REG, |
950 | value)) |
951 | return FALSE0; |
952 | break; |
953 | |
954 | case 'r': |
955 | /* Register variable (either global or local). */ |
956 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
957 | (debug_type **) NULL((void*)0)); |
958 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
959 | return FALSE0; |
960 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_REGISTER, |
961 | value)) |
962 | return FALSE0; |
963 | |
964 | /* FIXME: At this point gdb checks to combine pairs of 'p' and |
965 | 'r' stabs into a single 'P' stab. */ |
966 | break; |
967 | |
968 | case 'S': |
969 | /* Static symbol at top level of file. */ |
970 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
971 | (debug_type **) NULL((void*)0)); |
972 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
973 | return FALSE0; |
974 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_STATIC, |
975 | value)) |
976 | return FALSE0; |
977 | break; |
978 | |
979 | case 't': |
980 | /* A typedef. */ |
981 | dtype = parse_stab_type (dhandle, info, name, &p, &slot); |
982 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
983 | return FALSE0; |
984 | if (name == NULL((void*)0)) |
985 | { |
986 | /* A nameless type. Nothing to do. */ |
987 | return TRUE1; |
988 | } |
989 | |
990 | dtype = debug_name_type (dhandle, name, dtype); |
991 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
992 | return FALSE0; |
993 | |
994 | if (slot != NULL((void*)0)) |
995 | *slot = dtype; |
996 | |
997 | break; |
998 | |
999 | case 'T': |
1000 | /* Struct, union, or enum tag. For GNU C++, this can be be followed |
1001 | by 't' which means we are typedef'ing it as well. */ |
1002 | if (*p != 't') |
1003 | { |
1004 | synonym = FALSE0; |
1005 | /* FIXME: gdb sets synonym to TRUE if the current language |
1006 | is C++. */ |
1007 | } |
1008 | else |
1009 | { |
1010 | synonym = TRUE1; |
1011 | ++p; |
1012 | } |
1013 | |
1014 | dtype = parse_stab_type (dhandle, info, name, &p, &slot); |
1015 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1016 | return FALSE0; |
1017 | if (name == NULL((void*)0)) |
1018 | return TRUE1; |
1019 | |
1020 | /* INFO->SELF_CROSSREF is set by parse_stab_type if this type is |
1021 | a cross reference to itself. These are generated by some |
1022 | versions of g++. */ |
1023 | self_crossref = info->self_crossref; |
1024 | |
1025 | dtype = debug_tag_type (dhandle, name, dtype); |
1026 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1027 | return FALSE0; |
1028 | if (slot != NULL((void*)0)) |
1029 | *slot = dtype; |
1030 | |
1031 | /* See if we have a cross reference to this tag which we can now |
1032 | fill in. Avoid filling in a cross reference to ourselves, |
1033 | because that would lead to circular debugging information. */ |
1034 | if (! self_crossref) |
1035 | { |
1036 | register struct stab_tag **pst; |
1037 | |
1038 | for (pst = &info->tags; *pst != NULL((void*)0); pst = &(*pst)->next) |
1039 | { |
1040 | if ((*pst)->name[0] == name[0] |
1041 | && strcmp ((*pst)->name, name) == 0) |
1042 | { |
1043 | (*pst)->slot = dtype; |
1044 | *pst = (*pst)->next; |
1045 | break; |
1046 | } |
1047 | } |
1048 | } |
1049 | |
1050 | if (synonym) |
1051 | { |
1052 | dtype = debug_name_type (dhandle, name, dtype); |
1053 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1054 | return FALSE0; |
1055 | |
1056 | if (slot != NULL((void*)0)) |
1057 | *slot = dtype; |
1058 | } |
1059 | |
1060 | break; |
1061 | |
1062 | case 'V': |
1063 | /* Static symbol of local scope */ |
1064 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
1065 | (debug_type **) NULL((void*)0)); |
1066 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1067 | return FALSE0; |
1068 | /* FIXME: gdb checks os9k_stabs here. */ |
1069 | if (! stab_record_variable (dhandle, info, name, dtype, |
1070 | DEBUG_LOCAL_STATIC, value)) |
1071 | return FALSE0; |
1072 | break; |
1073 | |
1074 | case 'v': |
1075 | /* Reference parameter. */ |
1076 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
1077 | (debug_type **) NULL((void*)0)); |
1078 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1079 | return FALSE0; |
1080 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REFERENCE, |
1081 | value)) |
1082 | return FALSE0; |
1083 | break; |
1084 | |
1085 | case 'a': |
1086 | /* Reference parameter which is in a register. */ |
1087 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
1088 | (debug_type **) NULL((void*)0)); |
1089 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1090 | return FALSE0; |
1091 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REF_REG, |
1092 | value)) |
1093 | return FALSE0; |
1094 | break; |
1095 | |
1096 | case 'X': |
1097 | /* This is used by Sun FORTRAN for "function result value". |
1098 | Sun claims ("dbx and dbxtool interfaces", 2nd ed) |
1099 | that Pascal uses it too, but when I tried it Pascal used |
1100 | "x:3" (local symbol) instead. */ |
1101 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), &p, |
1102 | (debug_type **) NULL((void*)0)); |
1103 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1104 | return FALSE0; |
1105 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL, |
1106 | value)) |
1107 | return FALSE0; |
1108 | break; |
1109 | |
1110 | default: |
1111 | bad_stab (string); |
1112 | return FALSE0; |
1113 | } |
1114 | |
1115 | /* FIXME: gdb converts structure values to structure pointers in a |
1116 | couple of cases, depending upon the target. */ |
1117 | |
1118 | return TRUE1; |
1119 | } |
1120 | |
1121 | /* Parse a stabs type. The typename argument is non-NULL if this is a |
1122 | typedef or a tag definition. The pp argument points to the stab |
1123 | string, and is updated. The slotp argument points to a place to |
1124 | store the slot used if the type is being defined. */ |
1125 | |
1126 | static debug_type |
1127 | parse_stab_type (void *dhandle, struct stab_handle *info, const char *typename, const char **pp, debug_type **slotp) |
1128 | { |
1129 | const char *orig; |
1130 | int typenums[2]; |
1131 | int size; |
1132 | bfd_boolean stringp; |
1133 | int descriptor; |
1134 | debug_type dtype; |
1135 | |
1136 | if (slotp != NULL((void*)0)) |
1137 | *slotp = NULL((void*)0); |
1138 | |
1139 | orig = *pp; |
1140 | |
1141 | size = -1; |
1142 | stringp = FALSE0; |
1143 | |
1144 | info->self_crossref = FALSE0; |
1145 | |
1146 | /* Read type number if present. The type number may be omitted. |
1147 | for instance in a two-dimensional array declared with type |
1148 | "ar1;1;10;ar1;1;10;4". */ |
1149 | if (! ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit )) && **pp != '(' && **pp != '-') |
1150 | { |
1151 | /* 'typenums=' not present, type is anonymous. Read and return |
1152 | the definition, but don't put it in the type vector. */ |
1153 | typenums[0] = typenums[1] = -1; |
1154 | } |
1155 | else |
1156 | { |
1157 | if (! parse_stab_type_number (pp, typenums)) |
1158 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1159 | |
1160 | if (**pp != '=') |
1161 | /* Type is not being defined here. Either it already |
1162 | exists, or this is a forward reference to it. */ |
1163 | return stab_find_type (dhandle, info, typenums); |
1164 | |
1165 | /* Only set the slot if the type is being defined. This means |
1166 | that the mapping from type numbers to types will only record |
1167 | the name of the typedef which defines a type. If we don't do |
1168 | this, then something like |
1169 | typedef int foo; |
1170 | int i; |
1171 | will record that i is of type foo. Unfortunately, stabs |
1172 | information is ambiguous about variable types. For this code, |
1173 | typedef int foo; |
1174 | int i; |
1175 | foo j; |
1176 | the stabs information records both i and j as having the same |
1177 | type. This could be fixed by patching the compiler. */ |
1178 | if (slotp != NULL((void*)0) && typenums[0] >= 0 && typenums[1] >= 0) |
1179 | *slotp = stab_find_slot (info, typenums); |
1180 | |
1181 | /* Type is being defined here. */ |
1182 | /* Skip the '='. */ |
1183 | ++*pp; |
1184 | |
1185 | while (**pp == '@') |
1186 | { |
1187 | const char *p = *pp + 1; |
1188 | const char *attr; |
1189 | |
1190 | if (ISDIGIT (*p)(_sch_istable[(*p) & 0xff] & (unsigned short)(_sch_isdigit )) || *p == '(' || *p == '-') |
1191 | /* Member type. */ |
1192 | break; |
1193 | |
1194 | /* Type attributes. */ |
1195 | attr = p; |
1196 | |
1197 | for (; *p != ';'; ++p) |
1198 | { |
1199 | if (*p == '\0') |
1200 | { |
1201 | bad_stab (orig); |
1202 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1203 | } |
1204 | } |
1205 | *pp = p + 1; |
1206 | |
1207 | switch (*attr) |
1208 | { |
1209 | case 's': |
1210 | size = atoi (attr + 1); |
1211 | size /= 8; /* Size is in bits. We store it in bytes. */ |
1212 | if (size <= 0) |
1213 | size = -1; |
1214 | break; |
1215 | |
1216 | case 'S': |
1217 | stringp = TRUE1; |
1218 | break; |
1219 | |
1220 | default: |
1221 | /* Ignore unrecognized type attributes, so future |
1222 | compilers can invent new ones. */ |
1223 | break; |
1224 | } |
1225 | } |
1226 | } |
1227 | |
1228 | descriptor = **pp; |
1229 | ++*pp; |
1230 | |
1231 | switch (descriptor) |
1232 | { |
1233 | case 'x': |
1234 | { |
1235 | enum debug_type_kind code; |
1236 | const char *q1, *q2, *p; |
1237 | |
1238 | /* A cross reference to another type. */ |
1239 | switch (**pp) |
1240 | { |
1241 | case 's': |
1242 | code = DEBUG_KIND_STRUCT; |
1243 | break; |
1244 | case 'u': |
1245 | code = DEBUG_KIND_UNION; |
1246 | break; |
1247 | case 'e': |
1248 | code = DEBUG_KIND_ENUM; |
1249 | break; |
1250 | default: |
1251 | /* Complain and keep going, so compilers can invent new |
1252 | cross-reference types. */ |
1253 | warn_stab (orig, _("unrecognized cross reference type")("unrecognized cross reference type")); |
1254 | code = DEBUG_KIND_STRUCT; |
1255 | break; |
1256 | } |
1257 | ++*pp; |
1258 | |
1259 | q1 = strchr (*pp, '<'); |
1260 | p = strchr (*pp, ':'); |
1261 | if (p == NULL((void*)0)) |
1262 | { |
1263 | bad_stab (orig); |
1264 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1265 | } |
1266 | if (q1 != NULL((void*)0) && p > q1 && p[1] == ':') |
1267 | { |
1268 | int nest = 0; |
1269 | |
1270 | for (q2 = q1; *q2 != '\0'; ++q2) |
1271 | { |
1272 | if (*q2 == '<') |
1273 | ++nest; |
1274 | else if (*q2 == '>') |
1275 | --nest; |
1276 | else if (*q2 == ':' && nest == 0) |
1277 | break; |
1278 | } |
1279 | p = q2; |
1280 | if (*p != ':') |
1281 | { |
1282 | bad_stab (orig); |
1283 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1284 | } |
1285 | } |
1286 | |
1287 | /* Some versions of g++ can emit stabs like |
1288 | fleep:T20=xsfleep: |
1289 | which define structures in terms of themselves. We need to |
1290 | tell the caller to avoid building a circular structure. */ |
1291 | if (typename != NULL((void*)0) |
1292 | && strncmp (typename, *pp, p - *pp) == 0 |
1293 | && typename[p - *pp] == '\0') |
1294 | info->self_crossref = TRUE1; |
1295 | |
1296 | dtype = stab_find_tagged_type (dhandle, info, *pp, p - *pp, code); |
1297 | |
1298 | *pp = p + 1; |
1299 | } |
1300 | break; |
1301 | |
1302 | case '-': |
1303 | case '0': |
1304 | case '1': |
1305 | case '2': |
1306 | case '3': |
1307 | case '4': |
1308 | case '5': |
1309 | case '6': |
1310 | case '7': |
1311 | case '8': |
1312 | case '9': |
1313 | case '(': |
1314 | { |
1315 | const char *hold; |
1316 | int xtypenums[2]; |
1317 | |
1318 | /* This type is defined as another type. */ |
1319 | (*pp)--; |
1320 | hold = *pp; |
1321 | |
1322 | /* Peek ahead at the number to detect void. */ |
1323 | if (! parse_stab_type_number (pp, xtypenums)) |
1324 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1325 | |
1326 | if (typenums[0] == xtypenums[0] && typenums[1] == xtypenums[1]) |
1327 | { |
1328 | /* This type is being defined as itself, which means that |
1329 | it is void. */ |
1330 | dtype = debug_make_void_type (dhandle); |
1331 | } |
1332 | else |
1333 | { |
1334 | *pp = hold; |
1335 | |
1336 | /* Go back to the number and have parse_stab_type get it. |
1337 | This means that we can deal with something like |
1338 | t(1,2)=(3,4)=... which the Lucid compiler uses. */ |
1339 | dtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), |
1340 | pp, (debug_type **) NULL((void*)0)); |
1341 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1342 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1343 | } |
1344 | |
1345 | if (typenums[0] != -1) |
1346 | { |
1347 | if (! stab_record_type (dhandle, info, typenums, dtype)) |
1348 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1349 | } |
1350 | |
1351 | break; |
1352 | } |
1353 | |
1354 | case '*': |
1355 | dtype = debug_make_pointer_type (dhandle, |
1356 | parse_stab_type (dhandle, info, |
1357 | (const char *) NULL((void*)0), |
1358 | pp, |
1359 | (debug_type **) NULL((void*)0))); |
1360 | break; |
1361 | |
1362 | case '&': |
1363 | /* Reference to another type. */ |
1364 | dtype = (debug_make_reference_type |
1365 | (dhandle, |
1366 | parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
1367 | (debug_type **) NULL((void*)0)))); |
1368 | break; |
1369 | |
1370 | case 'f': |
1371 | /* Function returning another type. */ |
1372 | /* FIXME: gdb checks os9k_stabs here. */ |
1373 | dtype = (debug_make_function_type |
1374 | (dhandle, |
1375 | parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
1376 | (debug_type **) NULL((void*)0)), |
1377 | (debug_type *) NULL((void*)0), FALSE0)); |
1378 | break; |
1379 | |
1380 | case 'k': |
1381 | /* Const qualifier on some type (Sun). */ |
1382 | /* FIXME: gdb accepts 'c' here if os9k_stabs. */ |
1383 | dtype = debug_make_const_type (dhandle, |
1384 | parse_stab_type (dhandle, info, |
1385 | (const char *) NULL((void*)0), |
1386 | pp, |
1387 | (debug_type **) NULL((void*)0))); |
1388 | break; |
1389 | |
1390 | case 'B': |
1391 | /* Volatile qual on some type (Sun). */ |
1392 | /* FIXME: gdb accepts 'i' here if os9k_stabs. */ |
1393 | dtype = (debug_make_volatile_type |
1394 | (dhandle, |
1395 | parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
1396 | (debug_type **) NULL((void*)0)))); |
1397 | break; |
1398 | |
1399 | case '@': |
1400 | /* Offset (class & variable) type. This is used for a pointer |
1401 | relative to an object. */ |
1402 | { |
1403 | debug_type domain; |
1404 | debug_type memtype; |
1405 | |
1406 | /* Member type. */ |
1407 | |
1408 | domain = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
1409 | (debug_type **) NULL((void*)0)); |
1410 | if (domain == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1411 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1412 | |
1413 | if (**pp != ',') |
1414 | { |
1415 | bad_stab (orig); |
1416 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1417 | } |
1418 | ++*pp; |
1419 | |
1420 | memtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
1421 | (debug_type **) NULL((void*)0)); |
1422 | if (memtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1423 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1424 | |
1425 | dtype = debug_make_offset_type (dhandle, domain, memtype); |
1426 | } |
1427 | break; |
1428 | |
1429 | case '#': |
1430 | /* Method (class & fn) type. */ |
1431 | if (**pp == '#') |
1432 | { |
1433 | debug_type return_type; |
1434 | |
1435 | ++*pp; |
1436 | return_type = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), |
1437 | pp, (debug_type **) NULL((void*)0)); |
1438 | if (return_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1439 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1440 | if (**pp != ';') |
1441 | { |
1442 | bad_stab (orig); |
1443 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1444 | } |
1445 | ++*pp; |
1446 | dtype = debug_make_method_type (dhandle, return_type, |
1447 | DEBUG_TYPE_NULL((debug_type) ((void*)0)), |
1448 | (debug_type *) NULL((void*)0), FALSE0); |
1449 | } |
1450 | else |
1451 | { |
1452 | debug_type domain; |
1453 | debug_type return_type; |
1454 | debug_type *args; |
1455 | unsigned int n; |
1456 | unsigned int alloc; |
1457 | bfd_boolean varargs; |
1458 | |
1459 | domain = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), |
1460 | pp, (debug_type **) NULL((void*)0)); |
1461 | if (domain == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1462 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1463 | |
1464 | if (**pp != ',') |
1465 | { |
1466 | bad_stab (orig); |
1467 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1468 | } |
1469 | ++*pp; |
1470 | |
1471 | return_type = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), |
1472 | pp, (debug_type **) NULL((void*)0)); |
1473 | if (return_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1474 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1475 | |
1476 | alloc = 10; |
1477 | args = (debug_type *) xmalloc (alloc * sizeof *args); |
1478 | n = 0; |
1479 | while (**pp != ';') |
1480 | { |
1481 | if (**pp != ',') |
1482 | { |
1483 | bad_stab (orig); |
1484 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1485 | } |
1486 | ++*pp; |
1487 | |
1488 | if (n + 1 >= alloc) |
1489 | { |
1490 | alloc += 10; |
1491 | args = ((debug_type *) |
1492 | xrealloc (args, alloc * sizeof *args)); |
1493 | } |
1494 | |
1495 | args[n] = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), |
1496 | pp, (debug_type **) NULL((void*)0)); |
1497 | if (args[n] == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1498 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1499 | ++n; |
1500 | } |
1501 | ++*pp; |
1502 | |
1503 | /* If the last type is not void, then this function takes a |
1504 | variable number of arguments. Otherwise, we must strip |
1505 | the void type. */ |
1506 | if (n == 0 |
1507 | || debug_get_type_kind (dhandle, args[n - 1]) != DEBUG_KIND_VOID) |
1508 | varargs = TRUE1; |
1509 | else |
1510 | { |
1511 | --n; |
1512 | varargs = FALSE0; |
1513 | } |
1514 | |
1515 | args[n] = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1516 | |
1517 | dtype = debug_make_method_type (dhandle, return_type, domain, args, |
1518 | varargs); |
1519 | } |
1520 | break; |
1521 | |
1522 | case 'r': |
1523 | /* Range type. */ |
1524 | dtype = parse_stab_range_type (dhandle, info, typename, pp, typenums); |
1525 | break; |
1526 | |
1527 | case 'b': |
1528 | /* FIXME: gdb checks os9k_stabs here. */ |
1529 | /* Sun ACC builtin int type. */ |
1530 | dtype = parse_stab_sun_builtin_type (dhandle, pp); |
1531 | break; |
1532 | |
1533 | case 'R': |
1534 | /* Sun ACC builtin float type. */ |
1535 | dtype = parse_stab_sun_floating_type (dhandle, pp); |
1536 | break; |
1537 | |
1538 | case 'e': |
1539 | /* Enumeration type. */ |
1540 | dtype = parse_stab_enum_type (dhandle, pp); |
1541 | break; |
1542 | |
1543 | case 's': |
1544 | case 'u': |
1545 | /* Struct or union type. */ |
1546 | dtype = parse_stab_struct_type (dhandle, info, typename, pp, |
1547 | descriptor == 's', typenums); |
1548 | break; |
1549 | |
1550 | case 'a': |
1551 | /* Array type. */ |
1552 | if (**pp != 'r') |
1553 | { |
1554 | bad_stab (orig); |
1555 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1556 | } |
1557 | ++*pp; |
1558 | |
1559 | dtype = parse_stab_array_type (dhandle, info, pp, stringp); |
1560 | break; |
1561 | |
1562 | case 'S': |
1563 | dtype = debug_make_set_type (dhandle, |
1564 | parse_stab_type (dhandle, info, |
1565 | (const char *) NULL((void*)0), |
1566 | pp, |
1567 | (debug_type **) NULL((void*)0)), |
1568 | stringp); |
1569 | break; |
1570 | |
1571 | default: |
1572 | bad_stab (orig); |
1573 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1574 | } |
1575 | |
1576 | if (dtype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1577 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1578 | |
1579 | if (typenums[0] != -1) |
1580 | { |
1581 | if (! stab_record_type (dhandle, info, typenums, dtype)) |
1582 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1583 | } |
1584 | |
1585 | if (size != -1) |
1586 | { |
1587 | if (! debug_record_type_size (dhandle, dtype, (unsigned int) size)) |
1588 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1589 | } |
1590 | |
1591 | return dtype; |
1592 | } |
1593 | |
1594 | /* Read a number by which a type is referred to in dbx data, or |
1595 | perhaps read a pair (FILENUM, TYPENUM) in parentheses. Just a |
1596 | single number N is equivalent to (0,N). Return the two numbers by |
1597 | storing them in the vector TYPENUMS. */ |
1598 | |
1599 | static bfd_boolean |
1600 | parse_stab_type_number (const char **pp, int *typenums) |
1601 | { |
1602 | const char *orig; |
1603 | |
1604 | orig = *pp; |
1605 | |
1606 | if (**pp != '(') |
1607 | { |
1608 | typenums[0] = 0; |
1609 | typenums[1] = (int) parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
1610 | } |
1611 | else |
1612 | { |
1613 | ++*pp; |
1614 | typenums[0] = (int) parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
1615 | if (**pp != ',') |
1616 | { |
1617 | bad_stab (orig); |
1618 | return FALSE0; |
1619 | } |
1620 | ++*pp; |
1621 | typenums[1] = (int) parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
1622 | if (**pp != ')') |
1623 | { |
1624 | bad_stab (orig); |
1625 | return FALSE0; |
1626 | } |
1627 | ++*pp; |
1628 | } |
1629 | |
1630 | return TRUE1; |
1631 | } |
1632 | |
1633 | /* Parse a range type. */ |
1634 | |
1635 | static debug_type |
1636 | parse_stab_range_type (void *dhandle, struct stab_handle *info, const char *typename, const char **pp, const int *typenums) |
1637 | { |
1638 | const char *orig; |
1639 | int rangenums[2]; |
1640 | bfd_boolean self_subrange; |
1641 | debug_type index_type; |
1642 | const char *s2, *s3; |
1643 | bfd_signed_vma n2, n3; |
1644 | bfd_boolean ov2, ov3; |
1645 | |
1646 | orig = *pp; |
1647 | |
1648 | index_type = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1649 | |
1650 | /* First comes a type we are a subrange of. |
1651 | In C it is usually 0, 1 or the type being defined. */ |
1652 | if (! parse_stab_type_number (pp, rangenums)) |
1653 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1654 | |
1655 | self_subrange = (rangenums[0] == typenums[0] |
1656 | && rangenums[1] == typenums[1]); |
1657 | |
1658 | if (**pp == '=') |
1659 | { |
1660 | *pp = orig; |
1661 | index_type = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), |
1662 | pp, (debug_type **) NULL((void*)0)); |
1663 | if (index_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1664 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1665 | } |
1666 | |
1667 | if (**pp == ';') |
1668 | ++*pp; |
1669 | |
1670 | /* The remaining two operands are usually lower and upper bounds of |
1671 | the range. But in some special cases they mean something else. */ |
1672 | s2 = *pp; |
1673 | n2 = parse_number (pp, &ov2); |
1674 | if (**pp != ';') |
1675 | { |
1676 | bad_stab (orig); |
1677 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1678 | } |
1679 | ++*pp; |
1680 | |
1681 | s3 = *pp; |
1682 | n3 = parse_number (pp, &ov3); |
1683 | if (**pp != ';') |
1684 | { |
1685 | bad_stab (orig); |
1686 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1687 | } |
1688 | ++*pp; |
1689 | |
1690 | if (ov2 || ov3) |
1691 | { |
1692 | /* gcc will emit range stabs for long long types. Handle this |
1693 | as a special case. FIXME: This needs to be more general. */ |
1694 | #define LLLOW"01000000000000000000000;" "01000000000000000000000;" |
1695 | #define LLHIGH"0777777777777777777777;" "0777777777777777777777;" |
1696 | #define ULLHIGH"01777777777777777777777;" "01777777777777777777777;" |
1697 | if (index_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1698 | { |
1699 | if (strncmp (s2, LLLOW"01000000000000000000000;", sizeof LLLOW"01000000000000000000000;" - 1) == 0 |
1700 | && strncmp (s3, LLHIGH"0777777777777777777777;", sizeof LLHIGH"0777777777777777777777;" - 1) == 0) |
1701 | return debug_make_int_type (dhandle, 8, FALSE0); |
1702 | if (! ov2 |
1703 | && n2 == 0 |
1704 | && strncmp (s3, ULLHIGH"01777777777777777777777;", sizeof ULLHIGH"01777777777777777777777;" - 1) == 0) |
1705 | return debug_make_int_type (dhandle, 8, TRUE1); |
1706 | } |
1707 | |
1708 | warn_stab (orig, _("numeric overflow")("numeric overflow")); |
1709 | } |
1710 | |
1711 | if (index_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1712 | { |
1713 | /* A type defined as a subrange of itself, with both bounds 0, |
1714 | is void. */ |
1715 | if (self_subrange && n2 == 0 && n3 == 0) |
1716 | return debug_make_void_type (dhandle); |
1717 | |
1718 | /* A type defined as a subrange of itself, with n2 positive and |
1719 | n3 zero, is a complex type, and n2 is the number of bytes. */ |
1720 | if (self_subrange && n3 == 0 && n2 > 0) |
1721 | return debug_make_complex_type (dhandle, n2); |
1722 | |
1723 | /* If n3 is zero and n2 is positive, this is a floating point |
1724 | type, and n2 is the number of bytes. */ |
1725 | if (n3 == 0 && n2 > 0) |
1726 | return debug_make_float_type (dhandle, n2); |
1727 | |
1728 | /* If the upper bound is -1, this is an unsigned int. */ |
1729 | if (n2 == 0 && n3 == -1) |
1730 | { |
1731 | /* When gcc is used with -gstabs, but not -gstabs+, it will emit |
1732 | long long int:t6=r1;0;-1; |
1733 | long long unsigned int:t7=r1;0;-1; |
1734 | We hack here to handle this reasonably. */ |
1735 | if (typename != NULL((void*)0)) |
1736 | { |
1737 | if (strcmp (typename, "long long int") == 0) |
1738 | return debug_make_int_type (dhandle, 8, FALSE0); |
1739 | else if (strcmp (typename, "long long unsigned int") == 0) |
1740 | return debug_make_int_type (dhandle, 8, TRUE1); |
1741 | } |
1742 | /* FIXME: The size here really depends upon the target. */ |
1743 | return debug_make_int_type (dhandle, 4, TRUE1); |
1744 | } |
1745 | |
1746 | /* A range of 0 to 127 is char. */ |
1747 | if (self_subrange && n2 == 0 && n3 == 127) |
1748 | return debug_make_int_type (dhandle, 1, FALSE0); |
1749 | |
1750 | /* FIXME: gdb checks for the language CHILL here. */ |
1751 | |
1752 | if (n2 == 0) |
1753 | { |
1754 | if (n3 < 0) |
1755 | return debug_make_int_type (dhandle, - n3, TRUE1); |
1756 | else if (n3 == 0xff) |
1757 | return debug_make_int_type (dhandle, 1, TRUE1); |
1758 | else if (n3 == 0xffff) |
1759 | return debug_make_int_type (dhandle, 2, TRUE1); |
1760 | else if (n3 == (bfd_signed_vma) 0xffffffff) |
1761 | return debug_make_int_type (dhandle, 4, TRUE1); |
1762 | #ifdef BFD64 |
1763 | else if (n3 == ((((bfd_signed_vma) 0xffffffff) << 32) | 0xffffffff)) |
1764 | return debug_make_int_type (dhandle, 8, TRUE1); |
1765 | #endif |
1766 | } |
1767 | else if (n3 == 0 |
1768 | && n2 < 0 |
1769 | && (self_subrange || n2 == -8)) |
1770 | return debug_make_int_type (dhandle, - n2, TRUE1); |
1771 | else if (n2 == - n3 - 1 || n2 == n3 + 1) |
1772 | { |
1773 | if (n3 == 0x7f) |
1774 | return debug_make_int_type (dhandle, 1, FALSE0); |
1775 | else if (n3 == 0x7fff) |
1776 | return debug_make_int_type (dhandle, 2, FALSE0); |
1777 | else if (n3 == 0x7fffffff) |
1778 | return debug_make_int_type (dhandle, 4, FALSE0); |
1779 | #ifdef BFD64 |
1780 | else if (n3 == ((((bfd_vma) 0x7fffffff) << 32) | 0xffffffff)) |
1781 | return debug_make_int_type (dhandle, 8, FALSE0); |
1782 | #endif |
1783 | } |
1784 | } |
1785 | |
1786 | /* At this point I don't have the faintest idea how to deal with a |
1787 | self_subrange type; I'm going to assume that this is used as an |
1788 | idiom, and that all of them are special cases. So . . . */ |
1789 | if (self_subrange) |
1790 | { |
1791 | bad_stab (orig); |
1792 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1793 | } |
1794 | |
1795 | index_type = stab_find_type (dhandle, info, rangenums); |
1796 | if (index_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
1797 | { |
1798 | /* Does this actually ever happen? Is that why we are worrying |
1799 | about dealing with it rather than just calling error_type? */ |
1800 | warn_stab (orig, _("missing index type")("missing index type")); |
1801 | index_type = debug_make_int_type (dhandle, 4, FALSE0); |
1802 | } |
1803 | |
1804 | return debug_make_range_type (dhandle, index_type, n2, n3); |
1805 | } |
1806 | |
1807 | /* Sun's ACC uses a somewhat saner method for specifying the builtin |
1808 | typedefs in every file (for int, long, etc): |
1809 | |
1810 | type = b <signed> <width>; <offset>; <nbits> |
1811 | signed = u or s. Possible c in addition to u or s (for char?). |
1812 | offset = offset from high order bit to start bit of type. |
1813 | width is # bytes in object of this type, nbits is # bits in type. |
1814 | |
1815 | The width/offset stuff appears to be for small objects stored in |
1816 | larger ones (e.g. `shorts' in `int' registers). We ignore it for now, |
1817 | FIXME. */ |
1818 | |
1819 | static debug_type |
1820 | parse_stab_sun_builtin_type (void *dhandle, const char **pp) |
1821 | { |
1822 | const char *orig; |
1823 | bfd_boolean unsignedp; |
1824 | bfd_vma bits; |
1825 | |
1826 | orig = *pp; |
1827 | |
1828 | switch (**pp) |
1829 | { |
1830 | case 's': |
1831 | unsignedp = FALSE0; |
1832 | break; |
1833 | case 'u': |
1834 | unsignedp = TRUE1; |
1835 | break; |
1836 | default: |
1837 | bad_stab (orig); |
1838 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1839 | } |
1840 | ++*pp; |
1841 | |
1842 | /* For some odd reason, all forms of char put a c here. This is strange |
1843 | because no other type has this honor. We can safely ignore this because |
1844 | we actually determine 'char'acterness by the number of bits specified in |
1845 | the descriptor. */ |
1846 | if (**pp == 'c') |
1847 | ++*pp; |
1848 | |
1849 | /* The first number appears to be the number of bytes occupied |
1850 | by this type, except that unsigned short is 4 instead of 2. |
1851 | Since this information is redundant with the third number, |
1852 | we will ignore it. */ |
1853 | (void) parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
1854 | if (**pp != ';') |
1855 | { |
1856 | bad_stab (orig); |
1857 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1858 | } |
1859 | ++*pp; |
1860 | |
1861 | /* The second number is always 0, so ignore it too. */ |
1862 | (void) parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
1863 | if (**pp != ';') |
1864 | { |
1865 | bad_stab (orig); |
1866 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1867 | } |
1868 | ++*pp; |
1869 | |
1870 | /* The third number is the number of bits for this type. */ |
1871 | bits = parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
1872 | |
1873 | /* The type *should* end with a semicolon. If it are embedded |
1874 | in a larger type the semicolon may be the only way to know where |
1875 | the type ends. If this type is at the end of the stabstring we |
1876 | can deal with the omitted semicolon (but we don't have to like |
1877 | it). Don't bother to complain(), Sun's compiler omits the semicolon |
1878 | for "void". */ |
1879 | if (**pp == ';') |
1880 | ++*pp; |
1881 | |
1882 | if (bits == 0) |
1883 | return debug_make_void_type (dhandle); |
1884 | |
1885 | return debug_make_int_type (dhandle, bits / 8, unsignedp); |
1886 | } |
1887 | |
1888 | /* Parse a builtin floating type generated by the Sun compiler. */ |
1889 | |
1890 | static debug_type |
1891 | parse_stab_sun_floating_type (void *dhandle, const char **pp) |
1892 | { |
1893 | const char *orig; |
1894 | bfd_vma details; |
1895 | bfd_vma bytes; |
1896 | |
1897 | orig = *pp; |
1898 | |
1899 | /* The first number has more details about the type, for example |
1900 | FN_COMPLEX. */ |
1901 | details = parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
1902 | if (**pp != ';') |
1903 | { |
1904 | bad_stab (orig); |
1905 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1906 | } |
1907 | |
1908 | /* The second number is the number of bytes occupied by this type */ |
1909 | bytes = parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
1910 | if (**pp != ';') |
1911 | { |
1912 | bad_stab (orig); |
1913 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1914 | } |
1915 | |
1916 | if (details == NF_COMPLEX3 |
1917 | || details == NF_COMPLEX164 |
1918 | || details == NF_COMPLEX325) |
1919 | return debug_make_complex_type (dhandle, bytes); |
1920 | |
1921 | return debug_make_float_type (dhandle, bytes); |
1922 | } |
1923 | |
1924 | /* Handle an enum type. */ |
1925 | |
1926 | static debug_type |
1927 | parse_stab_enum_type (void *dhandle, const char **pp) |
1928 | { |
1929 | const char *orig; |
1930 | const char **names; |
1931 | bfd_signed_vma *values; |
1932 | unsigned int n; |
1933 | unsigned int alloc; |
1934 | |
1935 | orig = *pp; |
1936 | |
1937 | /* FIXME: gdb checks os9k_stabs here. */ |
1938 | |
1939 | /* The aix4 compiler emits an extra field before the enum members; |
1940 | my guess is it's a type of some sort. Just ignore it. */ |
1941 | if (**pp == '-') |
1942 | { |
1943 | while (**pp != ':') |
1944 | ++*pp; |
1945 | ++*pp; |
1946 | } |
1947 | |
1948 | /* Read the value-names and their values. |
1949 | The input syntax is NAME:VALUE,NAME:VALUE, and so on. |
1950 | A semicolon or comma instead of a NAME means the end. */ |
1951 | alloc = 10; |
1952 | names = (const char **) xmalloc (alloc * sizeof *names); |
1953 | values = (bfd_signed_vma *) xmalloc (alloc * sizeof *values); |
1954 | n = 0; |
1955 | while (**pp != '\0' && **pp != ';' && **pp != ',') |
1956 | { |
1957 | const char *p; |
1958 | char *name; |
1959 | bfd_signed_vma val; |
1960 | |
1961 | p = *pp; |
1962 | while (*p != ':') |
1963 | ++p; |
1964 | |
1965 | name = savestring (*pp, p - *pp); |
1966 | |
1967 | *pp = p + 1; |
1968 | val = (bfd_signed_vma) parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
1969 | if (**pp != ',') |
1970 | { |
1971 | bad_stab (orig); |
1972 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
1973 | } |
1974 | ++*pp; |
1975 | |
1976 | if (n + 1 >= alloc) |
1977 | { |
1978 | alloc += 10; |
1979 | names = ((const char **) |
1980 | xrealloc (names, alloc * sizeof *names)); |
1981 | values = ((bfd_signed_vma *) |
1982 | xrealloc (values, alloc * sizeof *values)); |
1983 | } |
1984 | |
1985 | names[n] = name; |
1986 | values[n] = val; |
1987 | ++n; |
1988 | } |
1989 | |
1990 | names[n] = NULL((void*)0); |
1991 | values[n] = 0; |
1992 | |
1993 | if (**pp == ';') |
1994 | ++*pp; |
1995 | |
1996 | return debug_make_enum_type (dhandle, names, values); |
1997 | } |
1998 | |
1999 | /* Read the description of a structure (or union type) and return an object |
2000 | describing the type. |
2001 | |
2002 | PP points to a character pointer that points to the next unconsumed token |
2003 | in the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;", |
2004 | *PP will point to "4a:1,0,32;;". */ |
2005 | |
2006 | static debug_type |
2007 | parse_stab_struct_type (void *dhandle, struct stab_handle *info, |
2008 | const char *tagname, const char **pp, |
2009 | bfd_boolean structp, const int *typenums) |
2010 | { |
2011 | const char *orig; |
2012 | bfd_vma size; |
2013 | debug_baseclass *baseclasses; |
2014 | debug_field *fields; |
2015 | bfd_boolean statics; |
2016 | debug_method *methods; |
2017 | debug_type vptrbase; |
2018 | bfd_boolean ownvptr; |
2019 | |
2020 | orig = *pp; |
2021 | |
2022 | /* Get the size. */ |
2023 | size = parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
2024 | |
2025 | /* Get the other information. */ |
2026 | if (! parse_stab_baseclasses (dhandle, info, pp, &baseclasses) |
2027 | || ! parse_stab_struct_fields (dhandle, info, pp, &fields, &statics) |
2028 | || ! parse_stab_members (dhandle, info, tagname, pp, typenums, &methods) |
2029 | || ! parse_stab_tilde_field (dhandle, info, pp, typenums, &vptrbase, |
2030 | &ownvptr)) |
2031 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2032 | |
2033 | if (! statics |
2034 | && baseclasses == NULL((void*)0) |
2035 | && methods == NULL((void*)0) |
2036 | && vptrbase == DEBUG_TYPE_NULL((debug_type) ((void*)0)) |
2037 | && ! ownvptr) |
2038 | return debug_make_struct_type (dhandle, structp, size, fields); |
2039 | |
2040 | return debug_make_object_type (dhandle, structp, size, fields, baseclasses, |
2041 | methods, vptrbase, ownvptr); |
2042 | } |
2043 | |
2044 | /* The stabs for C++ derived classes contain baseclass information which |
2045 | is marked by a '!' character after the total size. This function is |
2046 | called when we encounter the baseclass marker, and slurps up all the |
2047 | baseclass information. |
2048 | |
2049 | Immediately following the '!' marker is the number of base classes that |
2050 | the class is derived from, followed by information for each base class. |
2051 | For each base class, there are two visibility specifiers, a bit offset |
2052 | to the base class information within the derived class, a reference to |
2053 | the type for the base class, and a terminating semicolon. |
2054 | |
2055 | A typical example, with two base classes, would be "!2,020,19;0264,21;". |
2056 | ^^ ^ ^ ^ ^ ^ ^ |
2057 | Baseclass information marker __________________|| | | | | | | |
2058 | Number of baseclasses __________________________| | | | | | | |
2059 | Visibility specifiers (2) ________________________| | | | | | |
2060 | Offset in bits from start of class _________________| | | | | |
2061 | Type number for base class ___________________________| | | | |
2062 | Visibility specifiers (2) _______________________________| | | |
2063 | Offset in bits from start of class ________________________| | |
2064 | Type number of base class ____________________________________| |
2065 | |
2066 | Return TRUE for success, FALSE for failure. */ |
2067 | |
2068 | static bfd_boolean |
2069 | parse_stab_baseclasses (void *dhandle, struct stab_handle *info, |
2070 | const char **pp, debug_baseclass **retp) |
2071 | { |
2072 | const char *orig; |
2073 | unsigned int c, i; |
2074 | debug_baseclass *classes; |
2075 | |
2076 | *retp = NULL((void*)0); |
2077 | |
2078 | orig = *pp; |
2079 | |
2080 | if (**pp != '!') |
2081 | { |
2082 | /* No base classes. */ |
2083 | return TRUE1; |
2084 | } |
2085 | ++*pp; |
2086 | |
2087 | c = (unsigned int) parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
2088 | |
2089 | if (**pp != ',') |
2090 | { |
2091 | bad_stab (orig); |
2092 | return FALSE0; |
2093 | } |
2094 | ++*pp; |
2095 | |
2096 | classes = (debug_baseclass *) xmalloc ((c + 1) * sizeof (**retp)); |
2097 | |
2098 | for (i = 0; i < c; i++) |
2099 | { |
2100 | bfd_boolean virtual; |
2101 | enum debug_visibility visibility; |
2102 | bfd_vma bitpos; |
2103 | debug_type type; |
2104 | |
2105 | switch (**pp) |
2106 | { |
2107 | case '0': |
2108 | virtual = FALSE0; |
2109 | break; |
2110 | case '1': |
2111 | virtual = TRUE1; |
2112 | break; |
2113 | default: |
2114 | warn_stab (orig, _("unknown virtual character for baseclass")("unknown virtual character for baseclass")); |
2115 | virtual = FALSE0; |
2116 | break; |
2117 | } |
2118 | ++*pp; |
2119 | |
2120 | switch (**pp) |
2121 | { |
2122 | case '0': |
2123 | visibility = DEBUG_VISIBILITY_PRIVATE; |
2124 | break; |
2125 | case '1': |
2126 | visibility = DEBUG_VISIBILITY_PROTECTED; |
2127 | break; |
2128 | case '2': |
2129 | visibility = DEBUG_VISIBILITY_PUBLIC; |
2130 | break; |
2131 | default: |
2132 | warn_stab (orig, _("unknown visibility character for baseclass")("unknown visibility character for baseclass")); |
2133 | visibility = DEBUG_VISIBILITY_PUBLIC; |
2134 | break; |
2135 | } |
2136 | ++*pp; |
2137 | |
2138 | /* The remaining value is the bit offset of the portion of the |
2139 | object corresponding to this baseclass. Always zero in the |
2140 | absence of multiple inheritance. */ |
2141 | bitpos = parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
2142 | if (**pp != ',') |
2143 | { |
2144 | bad_stab (orig); |
2145 | return FALSE0; |
2146 | } |
2147 | ++*pp; |
2148 | |
2149 | type = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
2150 | (debug_type **) NULL((void*)0)); |
2151 | if (type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
2152 | return FALSE0; |
2153 | |
2154 | classes[i] = debug_make_baseclass (dhandle, type, bitpos, virtual, |
2155 | visibility); |
2156 | if (classes[i] == DEBUG_BASECLASS_NULL((debug_baseclass) ((void*)0))) |
2157 | return FALSE0; |
2158 | |
2159 | if (**pp != ';') |
2160 | return FALSE0; |
2161 | ++*pp; |
2162 | } |
2163 | |
2164 | classes[i] = DEBUG_BASECLASS_NULL((debug_baseclass) ((void*)0)); |
2165 | |
2166 | *retp = classes; |
2167 | |
2168 | return TRUE1; |
2169 | } |
2170 | |
2171 | /* Read struct or class data fields. They have the form: |
2172 | |
2173 | NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ; |
2174 | |
2175 | At the end, we see a semicolon instead of a field. |
2176 | |
2177 | In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for |
2178 | a static field. |
2179 | |
2180 | The optional VISIBILITY is one of: |
2181 | |
2182 | '/0' (VISIBILITY_PRIVATE) |
2183 | '/1' (VISIBILITY_PROTECTED) |
2184 | '/2' (VISIBILITY_PUBLIC) |
2185 | '/9' (VISIBILITY_IGNORE) |
2186 | |
2187 | or nothing, for C style fields with public visibility. |
2188 | |
2189 | Returns 1 for success, 0 for failure. */ |
2190 | |
2191 | static bfd_boolean |
2192 | parse_stab_struct_fields (void *dhandle, struct stab_handle *info, |
2193 | const char **pp, debug_field **retp, |
2194 | bfd_boolean *staticsp) |
2195 | { |
2196 | const char *orig; |
2197 | const char *p; |
2198 | debug_field *fields; |
2199 | unsigned int c; |
2200 | unsigned int alloc; |
2201 | |
2202 | *retp = NULL((void*)0); |
2203 | *staticsp = FALSE0; |
2204 | |
2205 | orig = *pp; |
2206 | |
2207 | c = 0; |
2208 | alloc = 10; |
2209 | fields = (debug_field *) xmalloc (alloc * sizeof *fields); |
2210 | while (**pp != ';') |
2211 | { |
2212 | /* FIXME: gdb checks os9k_stabs here. */ |
2213 | |
2214 | p = *pp; |
2215 | |
2216 | /* Add 1 to c to leave room for NULL pointer at end. */ |
2217 | if (c + 1 >= alloc) |
2218 | { |
2219 | alloc += 10; |
2220 | fields = ((debug_field *) |
2221 | xrealloc (fields, alloc * sizeof *fields)); |
2222 | } |
2223 | |
2224 | /* If it starts with CPLUS_MARKER it is a special abbreviation, |
2225 | unless the CPLUS_MARKER is followed by an underscore, in |
2226 | which case it is just the name of an anonymous type, which we |
2227 | should handle like any other type name. We accept either '$' |
2228 | or '.', because a field name can never contain one of these |
2229 | characters except as a CPLUS_MARKER. */ |
2230 | |
2231 | if ((*p == '$' || *p == '.') && p[1] != '_') |
2232 | { |
2233 | ++*pp; |
2234 | if (! parse_stab_cpp_abbrev (dhandle, info, pp, fields + c)) |
2235 | return FALSE0; |
2236 | ++c; |
2237 | continue; |
2238 | } |
2239 | |
2240 | /* Look for the ':' that separates the field name from the field |
2241 | values. Data members are delimited by a single ':', while member |
2242 | functions are delimited by a pair of ':'s. When we hit the member |
2243 | functions (if any), terminate scan loop and return. */ |
2244 | |
2245 | p = strchr (p, ':'); |
2246 | if (p == NULL((void*)0)) |
2247 | { |
2248 | bad_stab (orig); |
2249 | return FALSE0; |
2250 | } |
2251 | |
2252 | if (p[1] == ':') |
2253 | break; |
2254 | |
2255 | if (! parse_stab_one_struct_field (dhandle, info, pp, p, fields + c, |
2256 | staticsp)) |
2257 | return FALSE0; |
2258 | |
2259 | ++c; |
2260 | } |
2261 | |
2262 | fields[c] = DEBUG_FIELD_NULL((debug_field) ((void*)0)); |
2263 | |
2264 | *retp = fields; |
2265 | |
2266 | return TRUE1; |
2267 | } |
2268 | |
2269 | /* Special GNU C++ name. */ |
2270 | |
2271 | static bfd_boolean |
2272 | parse_stab_cpp_abbrev (void *dhandle, struct stab_handle *info, |
2273 | const char **pp, debug_field *retp) |
2274 | { |
2275 | const char *orig; |
2276 | int cpp_abbrev; |
2277 | debug_type context; |
2278 | const char *name; |
2279 | const char *typename; |
2280 | debug_type type; |
2281 | bfd_vma bitpos; |
2282 | |
2283 | *retp = DEBUG_FIELD_NULL((debug_field) ((void*)0)); |
2284 | |
2285 | orig = *pp; |
2286 | |
2287 | if (**pp != 'v') |
2288 | { |
2289 | bad_stab (*pp); |
2290 | return FALSE0; |
2291 | } |
2292 | ++*pp; |
2293 | |
2294 | cpp_abbrev = **pp; |
2295 | ++*pp; |
2296 | |
2297 | /* At this point, *pp points to something like "22:23=*22...", where |
2298 | the type number before the ':' is the "context" and everything |
2299 | after is a regular type definition. Lookup the type, find it's |
2300 | name, and construct the field name. */ |
2301 | |
2302 | context = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
2303 | (debug_type **) NULL((void*)0)); |
2304 | if (context == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
2305 | return FALSE0; |
2306 | |
2307 | switch (cpp_abbrev) |
2308 | { |
2309 | case 'f': |
2310 | /* $vf -- a virtual function table pointer. */ |
2311 | name = "_vptr$"; |
2312 | break; |
2313 | case 'b': |
2314 | /* $vb -- a virtual bsomethingorother */ |
2315 | typename = debug_get_type_name (dhandle, context); |
2316 | if (typename == NULL((void*)0)) |
2317 | { |
2318 | warn_stab (orig, _("unnamed $vb type")("unnamed $vb type")); |
2319 | typename = "FOO"; |
2320 | } |
2321 | name = concat ("_vb$", typename, (const char *) NULL((void*)0)); |
2322 | break; |
2323 | default: |
2324 | warn_stab (orig, _("unrecognized C++ abbreviation")("unrecognized C++ abbreviation")); |
2325 | name = "INVALID_CPLUSPLUS_ABBREV"; |
2326 | break; |
2327 | } |
2328 | |
2329 | if (**pp != ':') |
2330 | { |
2331 | bad_stab (orig); |
2332 | return FALSE0; |
2333 | } |
2334 | ++*pp; |
2335 | |
2336 | type = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
2337 | (debug_type **) NULL((void*)0)); |
2338 | if (**pp != ',') |
2339 | { |
2340 | bad_stab (orig); |
2341 | return FALSE0; |
2342 | } |
2343 | ++*pp; |
2344 | |
2345 | bitpos = parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
2346 | if (**pp != ';') |
2347 | { |
2348 | bad_stab (orig); |
2349 | return FALSE0; |
2350 | } |
2351 | ++*pp; |
2352 | |
2353 | *retp = debug_make_field (dhandle, name, type, bitpos, 0, |
2354 | DEBUG_VISIBILITY_PRIVATE); |
2355 | if (*retp == DEBUG_FIELD_NULL((debug_field) ((void*)0))) |
2356 | return FALSE0; |
2357 | |
2358 | return TRUE1; |
2359 | } |
2360 | |
2361 | /* Parse a single field in a struct or union. */ |
2362 | |
2363 | static bfd_boolean |
2364 | parse_stab_one_struct_field (void *dhandle, struct stab_handle *info, |
2365 | const char **pp, const char *p, |
2366 | debug_field *retp, bfd_boolean *staticsp) |
2367 | { |
2368 | const char *orig; |
2369 | char *name; |
2370 | enum debug_visibility visibility; |
2371 | debug_type type; |
2372 | bfd_vma bitpos; |
2373 | bfd_vma bitsize; |
2374 | |
2375 | orig = *pp; |
2376 | |
2377 | /* FIXME: gdb checks ARM_DEMANGLING here. */ |
2378 | |
2379 | name = savestring (*pp, p - *pp); |
2380 | |
2381 | *pp = p + 1; |
2382 | |
2383 | if (**pp != '/') |
2384 | visibility = DEBUG_VISIBILITY_PUBLIC; |
2385 | else |
2386 | { |
2387 | ++*pp; |
2388 | switch (**pp) |
2389 | { |
2390 | case '0': |
2391 | visibility = DEBUG_VISIBILITY_PRIVATE; |
2392 | break; |
2393 | case '1': |
2394 | visibility = DEBUG_VISIBILITY_PROTECTED; |
2395 | break; |
2396 | case '2': |
2397 | visibility = DEBUG_VISIBILITY_PUBLIC; |
2398 | break; |
2399 | default: |
2400 | warn_stab (orig, _("unknown visibility character for field")("unknown visibility character for field")); |
2401 | visibility = DEBUG_VISIBILITY_PUBLIC; |
2402 | break; |
2403 | } |
2404 | ++*pp; |
2405 | } |
2406 | |
2407 | type = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
2408 | (debug_type **) NULL((void*)0)); |
2409 | if (type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
2410 | return FALSE0; |
2411 | |
2412 | if (**pp == ':') |
2413 | { |
2414 | char *varname; |
2415 | |
2416 | /* This is a static class member. */ |
2417 | ++*pp; |
2418 | p = strchr (*pp, ';'); |
2419 | if (p == NULL((void*)0)) |
2420 | { |
2421 | bad_stab (orig); |
2422 | return FALSE0; |
2423 | } |
2424 | |
2425 | varname = savestring (*pp, p - *pp); |
2426 | |
2427 | *pp = p + 1; |
2428 | |
2429 | *retp = debug_make_static_member (dhandle, name, type, varname, |
2430 | visibility); |
2431 | *staticsp = TRUE1; |
2432 | |
2433 | return TRUE1; |
2434 | } |
2435 | |
2436 | if (**pp != ',') |
2437 | { |
2438 | bad_stab (orig); |
2439 | return FALSE0; |
2440 | } |
2441 | ++*pp; |
2442 | |
2443 | bitpos = parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
2444 | if (**pp != ',') |
2445 | { |
2446 | bad_stab (orig); |
2447 | return FALSE0; |
2448 | } |
2449 | ++*pp; |
2450 | |
2451 | bitsize = parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
2452 | if (**pp != ';') |
2453 | { |
2454 | bad_stab (orig); |
2455 | return FALSE0; |
2456 | } |
2457 | ++*pp; |
2458 | |
2459 | if (bitpos == 0 && bitsize == 0) |
2460 | { |
2461 | /* This can happen in two cases: (1) at least for gcc 2.4.5 or |
2462 | so, it is a field which has been optimized out. The correct |
2463 | stab for this case is to use VISIBILITY_IGNORE, but that is a |
2464 | recent invention. (2) It is a 0-size array. For example |
2465 | union { int num; char str[0]; } foo. Printing "<no value>" |
2466 | for str in "p foo" is OK, since foo.str (and thus foo.str[3]) |
2467 | will continue to work, and a 0-size array as a whole doesn't |
2468 | have any contents to print. |
2469 | |
2470 | I suspect this probably could also happen with gcc -gstabs |
2471 | (not -gstabs+) for static fields, and perhaps other C++ |
2472 | extensions. Hopefully few people use -gstabs with gdb, since |
2473 | it is intended for dbx compatibility. */ |
2474 | visibility = DEBUG_VISIBILITY_IGNORE; |
2475 | } |
2476 | |
2477 | /* FIXME: gdb does some stuff here to mark fields as unpacked. */ |
2478 | |
2479 | *retp = debug_make_field (dhandle, name, type, bitpos, bitsize, visibility); |
2480 | |
2481 | return TRUE1; |
2482 | } |
2483 | |
2484 | /* Read member function stabs info for C++ classes. The form of each member |
2485 | function data is: |
2486 | |
2487 | NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ; |
2488 | |
2489 | An example with two member functions is: |
2490 | |
2491 | afunc1::20=##15;:i;2A.;afunc2::20:i;2A.; |
2492 | |
2493 | For the case of overloaded operators, the format is op$::*.funcs, where |
2494 | $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator |
2495 | name (such as `+=') and `.' marks the end of the operator name. */ |
2496 | |
2497 | static bfd_boolean |
2498 | parse_stab_members (void *dhandle, struct stab_handle *info, |
2499 | const char *tagname, const char **pp, |
2500 | const int *typenums, debug_method **retp) |
2501 | { |
2502 | const char *orig; |
2503 | debug_method *methods; |
2504 | unsigned int c; |
2505 | unsigned int alloc; |
2506 | |
2507 | *retp = NULL((void*)0); |
2508 | |
2509 | orig = *pp; |
2510 | |
2511 | alloc = 0; |
2512 | methods = NULL((void*)0); |
2513 | c = 0; |
2514 | |
2515 | while (**pp != ';') |
2516 | { |
2517 | const char *p; |
2518 | char *name; |
2519 | debug_method_variant *variants; |
2520 | unsigned int cvars; |
2521 | unsigned int allocvars; |
2522 | debug_type look_ahead_type; |
2523 | |
2524 | p = strchr (*pp, ':'); |
2525 | if (p == NULL((void*)0) || p[1] != ':') |
2526 | break; |
2527 | |
2528 | /* FIXME: Some systems use something other than '$' here. */ |
2529 | if ((*pp)[0] != 'o' || (*pp)[1] != 'p' || (*pp)[2] != '$') |
2530 | { |
2531 | name = savestring (*pp, p - *pp); |
2532 | *pp = p + 2; |
2533 | } |
2534 | else |
2535 | { |
2536 | /* This is a completely weird case. In order to stuff in the |
2537 | names that might contain colons (the usual name delimiter), |
2538 | Mike Tiemann defined a different name format which is |
2539 | signalled if the identifier is "op$". In that case, the |
2540 | format is "op$::XXXX." where XXXX is the name. This is |
2541 | used for names like "+" or "=". YUUUUUUUK! FIXME! */ |
2542 | *pp = p + 2; |
2543 | for (p = *pp; *p != '.' && *p != '\0'; p++) |
2544 | ; |
2545 | if (*p != '.') |
2546 | { |
2547 | bad_stab (orig); |
2548 | return FALSE0; |
2549 | } |
2550 | name = savestring (*pp, p - *pp); |
2551 | *pp = p + 1; |
2552 | } |
2553 | |
2554 | allocvars = 10; |
2555 | variants = ((debug_method_variant *) |
2556 | xmalloc (allocvars * sizeof *variants)); |
2557 | cvars = 0; |
2558 | |
2559 | look_ahead_type = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2560 | |
2561 | do |
2562 | { |
2563 | debug_type type; |
2564 | bfd_boolean stub; |
2565 | char *argtypes; |
2566 | enum debug_visibility visibility; |
2567 | bfd_boolean constp, volatilep, staticp; |
2568 | bfd_vma voffset; |
2569 | debug_type context; |
2570 | const char *physname; |
2571 | bfd_boolean varargs; |
2572 | |
2573 | if (look_ahead_type != DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
2574 | { |
2575 | /* g++ version 1 kludge */ |
2576 | type = look_ahead_type; |
2577 | look_ahead_type = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2578 | } |
2579 | else |
2580 | { |
2581 | type = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
2582 | (debug_type **) NULL((void*)0)); |
2583 | if (type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
2584 | return FALSE0; |
2585 | if (**pp != ':') |
2586 | { |
2587 | bad_stab (orig); |
2588 | return FALSE0; |
2589 | } |
2590 | } |
2591 | |
2592 | ++*pp; |
2593 | p = strchr (*pp, ';'); |
2594 | if (p == NULL((void*)0)) |
2595 | { |
2596 | bad_stab (orig); |
2597 | return FALSE0; |
2598 | } |
2599 | |
2600 | stub = FALSE0; |
2601 | if (debug_get_type_kind (dhandle, type) == DEBUG_KIND_METHOD |
2602 | && debug_get_parameter_types (dhandle, type, &varargs) == NULL((void*)0)) |
2603 | stub = TRUE1; |
2604 | |
2605 | argtypes = savestring (*pp, p - *pp); |
2606 | *pp = p + 1; |
2607 | |
2608 | switch (**pp) |
2609 | { |
2610 | case '0': |
2611 | visibility = DEBUG_VISIBILITY_PRIVATE; |
2612 | break; |
2613 | case '1': |
2614 | visibility = DEBUG_VISIBILITY_PROTECTED; |
2615 | break; |
2616 | default: |
2617 | visibility = DEBUG_VISIBILITY_PUBLIC; |
2618 | break; |
2619 | } |
2620 | ++*pp; |
2621 | |
2622 | constp = FALSE0; |
2623 | volatilep = FALSE0; |
2624 | switch (**pp) |
2625 | { |
2626 | case 'A': |
2627 | /* Normal function. */ |
2628 | ++*pp; |
2629 | break; |
2630 | case 'B': |
2631 | /* const member function. */ |
2632 | constp = TRUE1; |
2633 | ++*pp; |
2634 | break; |
2635 | case 'C': |
2636 | /* volatile member function. */ |
2637 | volatilep = TRUE1; |
2638 | ++*pp; |
2639 | break; |
2640 | case 'D': |
2641 | /* const volatile member function. */ |
2642 | constp = TRUE1; |
2643 | volatilep = TRUE1; |
2644 | ++*pp; |
2645 | break; |
2646 | case '*': |
2647 | case '?': |
2648 | case '.': |
2649 | /* File compiled with g++ version 1; no information. */ |
2650 | break; |
2651 | default: |
2652 | warn_stab (orig, _("const/volatile indicator missing")("const/volatile indicator missing")); |
2653 | break; |
2654 | } |
2655 | |
2656 | staticp = FALSE0; |
2657 | switch (**pp) |
2658 | { |
2659 | case '*': |
2660 | /* virtual member function, followed by index. The sign |
2661 | bit is supposedly set to distinguish |
2662 | pointers-to-methods from virtual function indicies. */ |
2663 | ++*pp; |
2664 | voffset = parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
2665 | if (**pp != ';') |
2666 | { |
2667 | bad_stab (orig); |
2668 | return FALSE0; |
2669 | } |
2670 | ++*pp; |
2671 | voffset &= 0x7fffffff; |
2672 | |
2673 | if (**pp == ';' || **pp == '\0') |
2674 | { |
2675 | /* Must be g++ version 1. */ |
2676 | context = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2677 | } |
2678 | else |
2679 | { |
2680 | /* Figure out from whence this virtual function |
2681 | came. It may belong to virtual function table of |
2682 | one of its baseclasses. */ |
2683 | look_ahead_type = parse_stab_type (dhandle, info, |
2684 | (const char *) NULL((void*)0), |
2685 | pp, |
2686 | (debug_type **) NULL((void*)0)); |
2687 | if (**pp == ':') |
2688 | { |
2689 | /* g++ version 1 overloaded methods. */ |
2690 | context = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2691 | } |
2692 | else |
2693 | { |
2694 | context = look_ahead_type; |
2695 | look_ahead_type = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2696 | if (**pp != ';') |
2697 | { |
2698 | bad_stab (orig); |
2699 | return FALSE0; |
2700 | } |
2701 | ++*pp; |
2702 | } |
2703 | } |
2704 | break; |
2705 | |
2706 | case '?': |
2707 | /* static member function. */ |
2708 | ++*pp; |
2709 | staticp = TRUE1; |
2710 | voffset = 0; |
2711 | context = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2712 | if (strncmp (argtypes, name, strlen (name)) != 0) |
2713 | stub = TRUE1; |
2714 | break; |
2715 | |
2716 | default: |
2717 | warn_stab (orig, "member function type missing"); |
2718 | voffset = 0; |
2719 | context = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2720 | break; |
2721 | |
2722 | case '.': |
2723 | ++*pp; |
2724 | voffset = 0; |
2725 | context = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2726 | break; |
2727 | } |
2728 | |
2729 | /* If the type is not a stub, then the argtypes string is |
2730 | the physical name of the function. Otherwise the |
2731 | argtypes string is the mangled form of the argument |
2732 | types, and the full type and the physical name must be |
2733 | extracted from them. */ |
2734 | if (! stub) |
2735 | physname = argtypes; |
2736 | else |
2737 | { |
2738 | debug_type class_type, return_type; |
2739 | |
2740 | class_type = stab_find_type (dhandle, info, typenums); |
2741 | if (class_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
2742 | return FALSE0; |
2743 | return_type = debug_get_return_type (dhandle, type); |
2744 | if (return_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
2745 | { |
2746 | bad_stab (orig); |
2747 | return FALSE0; |
2748 | } |
2749 | type = parse_stab_argtypes (dhandle, info, class_type, name, |
2750 | tagname, return_type, argtypes, |
2751 | constp, volatilep, &physname); |
2752 | if (type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
2753 | return FALSE0; |
2754 | } |
2755 | |
2756 | if (cvars + 1 >= allocvars) |
2757 | { |
2758 | allocvars += 10; |
2759 | variants = ((debug_method_variant *) |
2760 | xrealloc (variants, |
2761 | allocvars * sizeof *variants)); |
2762 | } |
2763 | |
2764 | if (! staticp) |
2765 | variants[cvars] = debug_make_method_variant (dhandle, physname, |
2766 | type, visibility, |
2767 | constp, volatilep, |
2768 | voffset, context); |
2769 | else |
2770 | variants[cvars] = debug_make_static_method_variant (dhandle, |
2771 | physname, |
2772 | type, |
2773 | visibility, |
2774 | constp, |
2775 | volatilep); |
2776 | if (variants[cvars] == DEBUG_METHOD_VARIANT_NULL((debug_method_variant) ((void*)0))) |
2777 | return FALSE0; |
2778 | |
2779 | ++cvars; |
2780 | } |
2781 | while (**pp != ';' && **pp != '\0'); |
2782 | |
2783 | variants[cvars] = DEBUG_METHOD_VARIANT_NULL((debug_method_variant) ((void*)0)); |
2784 | |
2785 | if (**pp != '\0') |
2786 | ++*pp; |
2787 | |
2788 | if (c + 1 >= alloc) |
2789 | { |
2790 | alloc += 10; |
2791 | methods = ((debug_method *) |
2792 | xrealloc (methods, alloc * sizeof *methods)); |
2793 | } |
2794 | |
2795 | methods[c] = debug_make_method (dhandle, name, variants); |
2796 | |
2797 | ++c; |
2798 | } |
2799 | |
2800 | if (methods != NULL((void*)0)) |
2801 | methods[c] = DEBUG_METHOD_NULL((debug_method) ((void*)0)); |
2802 | |
2803 | *retp = methods; |
2804 | |
2805 | return TRUE1; |
2806 | } |
2807 | |
2808 | /* Parse a string representing argument types for a method. Stabs |
2809 | tries to save space by packing argument types into a mangled |
2810 | string. This string should give us enough information to extract |
2811 | both argument types and the physical name of the function, given |
2812 | the tag name. */ |
2813 | |
2814 | static debug_type |
2815 | parse_stab_argtypes (void *dhandle, struct stab_handle *info, |
2816 | debug_type class_type, const char *fieldname, |
2817 | const char *tagname, debug_type return_type, |
2818 | const char *argtypes, bfd_boolean constp, |
2819 | bfd_boolean volatilep, const char **pphysname) |
2820 | { |
2821 | bfd_boolean is_full_physname_constructor; |
2822 | bfd_boolean is_constructor; |
2823 | bfd_boolean is_destructor; |
2824 | bfd_boolean is_v3; |
2825 | debug_type *args; |
2826 | bfd_boolean varargs; |
2827 | unsigned int physname_len = 0; |
2828 | |
2829 | /* Constructors are sometimes handled specially. */ |
2830 | is_full_physname_constructor = ((argtypes[0] == '_' |
2831 | && argtypes[1] == '_' |
2832 | && (ISDIGIT (argtypes[2])(_sch_istable[(argtypes[2]) & 0xff] & (unsigned short )(_sch_isdigit)) |
2833 | || argtypes[2] == 'Q' |
2834 | || argtypes[2] == 't')) |
2835 | || strncmp (argtypes, "__ct", 4) == 0); |
2836 | |
2837 | is_constructor = (is_full_physname_constructor |
2838 | || (tagname != NULL((void*)0) |
2839 | && strcmp (fieldname, tagname) == 0)); |
2840 | is_destructor = ((argtypes[0] == '_' |
2841 | && (argtypes[1] == '$' || argtypes[1] == '.') |
2842 | && argtypes[2] == '_') |
2843 | || strncmp (argtypes, "__dt", 4) == 0); |
2844 | is_v3 = argtypes[0] == '_' && argtypes[1] == 'Z'; |
2845 | |
2846 | if (is_destructor || is_full_physname_constructor || is_v3) |
2847 | *pphysname = argtypes; |
2848 | else |
2849 | { |
2850 | unsigned int len; |
2851 | const char *const_prefix; |
2852 | const char *volatile_prefix; |
2853 | char buf[20]; |
2854 | unsigned int mangled_name_len; |
2855 | char *physname; |
2856 | |
2857 | len = tagname == NULL((void*)0) ? 0 : strlen (tagname); |
2858 | const_prefix = constp ? "C" : ""; |
2859 | volatile_prefix = volatilep ? "V" : ""; |
2860 | |
2861 | if (len == 0) |
2862 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
2863 | else if (tagname != NULL((void*)0) && strchr (tagname, '<') != NULL((void*)0)) |
2864 | { |
2865 | /* Template methods are fully mangled. */ |
2866 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
2867 | tagname = NULL((void*)0); |
2868 | len = 0; |
2869 | } |
2870 | else |
2871 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); |
2872 | |
2873 | mangled_name_len = ((is_constructor ? 0 : strlen (fieldname)) |
2874 | + strlen (buf) |
2875 | + len |
2876 | + strlen (argtypes) |
2877 | + 1); |
2878 | |
2879 | if (fieldname[0] == 'o' |
2880 | && fieldname[1] == 'p' |
2881 | && (fieldname[2] == '$' || fieldname[2] == '.')) |
2882 | { |
2883 | const char *opname; |
2884 | |
2885 | opname = cplus_mangle_opname (fieldname + 3, 0); |
2886 | if (opname == NULL((void*)0)) |
2887 | { |
2888 | fprintf (stderr(&__sF[2]), _("No mangling for \"%s\"\n")("No mangling for \"%s\"\n"), fieldname); |
2889 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2890 | } |
2891 | mangled_name_len += strlen (opname); |
2892 | physname = (char *) xmalloc (mangled_name_len); |
2893 | strncpy (physname, fieldname, 3); |
2894 | strcpy (physname + 3, opname); |
2895 | } |
2896 | else |
2897 | { |
2898 | physname = (char *) xmalloc (mangled_name_len); |
2899 | if (is_constructor) |
2900 | physname[0] = '\0'; |
2901 | else |
2902 | strcpy (physname, fieldname); |
2903 | } |
2904 | |
2905 | physname_len = strlen (physname); |
2906 | strcat (physname, buf); |
2907 | if (tagname != NULL((void*)0)) |
2908 | strcat (physname, tagname); |
2909 | strcat (physname, argtypes); |
2910 | |
2911 | *pphysname = physname; |
2912 | } |
2913 | |
2914 | if (*argtypes == '\0' || is_destructor) |
2915 | { |
2916 | args = (debug_type *) xmalloc (sizeof *args); |
2917 | *args = NULL((void*)0); |
2918 | return debug_make_method_type (dhandle, return_type, class_type, args, |
2919 | FALSE0); |
2920 | } |
2921 | |
2922 | args = stab_demangle_argtypes (dhandle, info, *pphysname, &varargs, physname_len); |
2923 | if (args == NULL((void*)0)) |
2924 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2925 | |
2926 | return debug_make_method_type (dhandle, return_type, class_type, args, |
2927 | varargs); |
2928 | } |
2929 | |
2930 | /* The tail end of stabs for C++ classes that contain a virtual function |
2931 | pointer contains a tilde, a %, and a type number. |
2932 | The type number refers to the base class (possibly this class itself) which |
2933 | contains the vtable pointer for the current class. |
2934 | |
2935 | This function is called when we have parsed all the method declarations, |
2936 | so we can look for the vptr base class info. */ |
2937 | |
2938 | static bfd_boolean |
2939 | parse_stab_tilde_field (void *dhandle, struct stab_handle *info, |
2940 | const char **pp, const int *typenums, |
2941 | debug_type *retvptrbase, bfd_boolean *retownvptr) |
2942 | { |
2943 | const char *orig; |
2944 | const char *hold; |
2945 | int vtypenums[2]; |
2946 | |
2947 | *retvptrbase = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
2948 | *retownvptr = FALSE0; |
2949 | |
2950 | orig = *pp; |
2951 | |
2952 | /* If we are positioned at a ';', then skip it. */ |
2953 | if (**pp == ';') |
2954 | ++*pp; |
2955 | |
2956 | if (**pp != '~') |
2957 | return TRUE1; |
2958 | |
2959 | ++*pp; |
2960 | |
2961 | if (**pp == '=' || **pp == '+' || **pp == '-') |
2962 | { |
2963 | /* Obsolete flags that used to indicate the presence of |
2964 | constructors and/or destructors. */ |
2965 | ++*pp; |
2966 | } |
2967 | |
2968 | if (**pp != '%') |
2969 | return TRUE1; |
2970 | |
2971 | ++*pp; |
2972 | |
2973 | hold = *pp; |
2974 | |
2975 | /* The next number is the type number of the base class (possibly |
2976 | our own class) which supplies the vtable for this class. */ |
2977 | if (! parse_stab_type_number (pp, vtypenums)) |
2978 | return FALSE0; |
2979 | |
2980 | if (vtypenums[0] == typenums[0] |
2981 | && vtypenums[1] == typenums[1]) |
2982 | *retownvptr = TRUE1; |
2983 | else |
2984 | { |
2985 | debug_type vtype; |
2986 | const char *p; |
2987 | |
2988 | *pp = hold; |
2989 | |
2990 | vtype = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
2991 | (debug_type **) NULL((void*)0)); |
2992 | for (p = *pp; *p != ';' && *p != '\0'; p++) |
2993 | ; |
2994 | if (*p != ';') |
2995 | { |
2996 | bad_stab (orig); |
2997 | return FALSE0; |
2998 | } |
2999 | |
3000 | *retvptrbase = vtype; |
3001 | |
3002 | *pp = p + 1; |
3003 | } |
3004 | |
3005 | return TRUE1; |
3006 | } |
3007 | |
3008 | /* Read a definition of an array type. */ |
3009 | |
3010 | static debug_type |
3011 | parse_stab_array_type (void *dhandle, struct stab_handle *info, |
3012 | const char **pp, bfd_boolean stringp) |
3013 | { |
3014 | const char *orig; |
3015 | const char *p; |
3016 | int typenums[2]; |
3017 | debug_type index_type; |
3018 | bfd_boolean adjustable; |
3019 | bfd_signed_vma lower, upper; |
3020 | debug_type element_type; |
3021 | |
3022 | /* Format of an array type: |
3023 | "ar<index type>;lower;upper;<array_contents_type>". |
3024 | OS9000: "arlower,upper;<array_contents_type>". |
3025 | |
3026 | Fortran adjustable arrays use Adigits or Tdigits for lower or upper; |
3027 | for these, produce a type like float[][]. */ |
3028 | |
3029 | orig = *pp; |
3030 | |
3031 | /* FIXME: gdb checks os9k_stabs here. */ |
3032 | |
3033 | /* If the index type is type 0, we take it as int. */ |
3034 | p = *pp; |
3035 | if (! parse_stab_type_number (&p, typenums)) |
3036 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
3037 | if (typenums[0] == 0 && typenums[1] == 0 && **pp != '=') |
3038 | { |
3039 | index_type = debug_find_named_type (dhandle, "int"); |
3040 | if (index_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
3041 | { |
3042 | index_type = debug_make_int_type (dhandle, 4, FALSE0); |
3043 | if (index_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
3044 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
3045 | } |
3046 | *pp = p; |
3047 | } |
3048 | else |
3049 | { |
3050 | index_type = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
3051 | (debug_type **) NULL((void*)0)); |
3052 | } |
3053 | |
3054 | if (**pp != ';') |
3055 | { |
3056 | bad_stab (orig); |
3057 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
3058 | } |
3059 | ++*pp; |
3060 | |
3061 | adjustable = FALSE0; |
3062 | |
3063 | if (! ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit )) && **pp != '-') |
3064 | { |
3065 | ++*pp; |
3066 | adjustable = TRUE1; |
3067 | } |
3068 | |
3069 | lower = (bfd_signed_vma) parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
3070 | if (**pp != ';') |
3071 | { |
3072 | bad_stab (orig); |
3073 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
3074 | } |
3075 | ++*pp; |
3076 | |
3077 | if (! ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit )) && **pp != '-') |
3078 | { |
3079 | ++*pp; |
3080 | adjustable = TRUE1; |
3081 | } |
3082 | |
3083 | upper = (bfd_signed_vma) parse_number (pp, (bfd_boolean *) NULL((void*)0)); |
3084 | if (**pp != ';') |
3085 | { |
3086 | bad_stab (orig); |
3087 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
3088 | } |
3089 | ++*pp; |
3090 | |
3091 | element_type = parse_stab_type (dhandle, info, (const char *) NULL((void*)0), pp, |
3092 | (debug_type **) NULL((void*)0)); |
3093 | if (element_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
3094 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
3095 | |
3096 | if (adjustable) |
3097 | { |
3098 | lower = 0; |
3099 | upper = -1; |
3100 | } |
3101 | |
3102 | return debug_make_array_type (dhandle, element_type, index_type, lower, |
3103 | upper, stringp); |
3104 | } |
3105 | |
3106 | /* This struct holds information about files we have seen using |
3107 | N_BINCL. */ |
3108 | |
3109 | struct bincl_file |
3110 | { |
3111 | /* The next N_BINCL file. */ |
3112 | struct bincl_file *next; |
3113 | /* The next N_BINCL on the stack. */ |
3114 | struct bincl_file *next_stack; |
3115 | /* The file name. */ |
3116 | const char *name; |
3117 | /* The hash value. */ |
3118 | bfd_vma hash; |
3119 | /* The file index. */ |
3120 | unsigned int file; |
3121 | /* The list of types defined in this file. */ |
3122 | struct stab_types *file_types; |
3123 | }; |
3124 | |
3125 | /* Start a new N_BINCL file, pushing it onto the stack. */ |
3126 | |
3127 | static void |
3128 | push_bincl (struct stab_handle *info, const char *name, bfd_vma hash) |
3129 | { |
3130 | struct bincl_file *n; |
3131 | |
3132 | n = (struct bincl_file *) xmalloc (sizeof *n); |
3133 | n->next = info->bincl_list; |
3134 | n->next_stack = info->bincl_stack; |
3135 | n->name = name; |
3136 | n->hash = hash; |
3137 | n->file = info->files; |
3138 | n->file_types = NULL((void*)0); |
3139 | info->bincl_list = n; |
3140 | info->bincl_stack = n; |
3141 | |
3142 | ++info->files; |
3143 | info->file_types = ((struct stab_types **) |
3144 | xrealloc (info->file_types, |
3145 | (info->files |
3146 | * sizeof *info->file_types))); |
3147 | info->file_types[n->file] = NULL((void*)0); |
3148 | } |
3149 | |
3150 | /* Finish an N_BINCL file, at an N_EINCL, popping the name off the |
3151 | stack. */ |
3152 | |
3153 | static const char * |
3154 | pop_bincl (struct stab_handle *info) |
3155 | { |
3156 | struct bincl_file *o; |
3157 | |
3158 | o = info->bincl_stack; |
3159 | if (o == NULL((void*)0)) |
3160 | return info->main_filename; |
3161 | info->bincl_stack = o->next_stack; |
3162 | |
3163 | o->file_types = info->file_types[o->file]; |
3164 | |
3165 | if (info->bincl_stack == NULL((void*)0)) |
3166 | return info->main_filename; |
3167 | return info->bincl_stack->name; |
3168 | } |
3169 | |
3170 | /* Handle an N_EXCL: get the types from the corresponding N_BINCL. */ |
3171 | |
3172 | static bfd_boolean |
3173 | find_excl (struct stab_handle *info, const char *name, bfd_vma hash) |
3174 | { |
3175 | struct bincl_file *l; |
3176 | |
3177 | ++info->files; |
3178 | info->file_types = ((struct stab_types **) |
3179 | xrealloc (info->file_types, |
3180 | (info->files |
3181 | * sizeof *info->file_types))); |
3182 | |
3183 | for (l = info->bincl_list; l != NULL((void*)0); l = l->next) |
3184 | if (l->hash == hash && strcmp (l->name, name) == 0) |
3185 | break; |
3186 | if (l == NULL((void*)0)) |
3187 | { |
3188 | warn_stab (name, _("Undefined N_EXCL")("Undefined N_EXCL")); |
3189 | info->file_types[info->files - 1] = NULL((void*)0); |
3190 | return TRUE1; |
3191 | } |
3192 | |
3193 | info->file_types[info->files - 1] = l->file_types; |
3194 | |
3195 | return TRUE1; |
3196 | } |
3197 | |
3198 | /* Handle a variable definition. gcc emits variable definitions for a |
3199 | block before the N_LBRAC, so we must hold onto them until we see |
3200 | it. The SunPRO compiler emits variable definitions after the |
3201 | N_LBRAC, so we can call debug_record_variable immediately. */ |
3202 | |
3203 | static bfd_boolean |
3204 | stab_record_variable (void *dhandle, struct stab_handle *info, |
3205 | const char *name, debug_type type, |
3206 | enum debug_var_kind kind, bfd_vma val) |
3207 | { |
3208 | struct stab_pending_var *v; |
3209 | |
3210 | if ((kind == DEBUG_GLOBAL || kind == DEBUG_STATIC) |
3211 | || ! info->within_function |
3212 | || (info->gcc_compiled == 0 && info->n_opt_found)) |
3213 | return debug_record_variable (dhandle, name, type, kind, val); |
3214 | |
3215 | v = (struct stab_pending_var *) xmalloc (sizeof *v); |
3216 | memset (v, 0, sizeof *v); |
3217 | |
3218 | v->next = info->pending; |
3219 | v->name = name; |
3220 | v->type = type; |
3221 | v->kind = kind; |
3222 | v->val = val; |
3223 | info->pending = v; |
3224 | |
3225 | return TRUE1; |
3226 | } |
3227 | |
3228 | /* Emit pending variable definitions. This is called after we see the |
3229 | N_LBRAC that starts the block. */ |
3230 | |
3231 | static bfd_boolean |
3232 | stab_emit_pending_vars (void *dhandle, struct stab_handle *info) |
3233 | { |
3234 | struct stab_pending_var *v; |
3235 | |
3236 | v = info->pending; |
3237 | while (v != NULL((void*)0)) |
3238 | { |
3239 | struct stab_pending_var *next; |
3240 | |
3241 | if (! debug_record_variable (dhandle, v->name, v->type, v->kind, v->val)) |
3242 | return FALSE0; |
3243 | |
3244 | next = v->next; |
3245 | free (v); |
3246 | v = next; |
3247 | } |
3248 | |
3249 | info->pending = NULL((void*)0); |
3250 | |
3251 | return TRUE1; |
3252 | } |
3253 | |
3254 | /* Find the slot for a type in the database. */ |
3255 | |
3256 | static debug_type * |
3257 | stab_find_slot (struct stab_handle *info, const int *typenums) |
3258 | { |
3259 | int filenum; |
3260 | int index; |
3261 | struct stab_types **ps; |
3262 | |
3263 | filenum = typenums[0]; |
3264 | index = typenums[1]; |
3265 | |
3266 | if (filenum < 0 || (unsigned int) filenum >= info->files) |
3267 | { |
3268 | fprintf (stderr(&__sF[2]), _("Type file number %d out of range\n")("Type file number %d out of range\n"), filenum); |
3269 | return NULL((void*)0); |
3270 | } |
3271 | if (index < 0) |
3272 | { |
3273 | fprintf (stderr(&__sF[2]), _("Type index number %d out of range\n")("Type index number %d out of range\n"), index); |
3274 | return NULL((void*)0); |
3275 | } |
3276 | |
3277 | ps = info->file_types + filenum; |
3278 | |
3279 | while (index >= STAB_TYPES_SLOTS(16)) |
3280 | { |
3281 | if (*ps == NULL((void*)0)) |
3282 | { |
3283 | *ps = (struct stab_types *) xmalloc (sizeof **ps); |
3284 | memset (*ps, 0, sizeof **ps); |
3285 | } |
3286 | ps = &(*ps)->next; |
3287 | index -= STAB_TYPES_SLOTS(16); |
3288 | } |
3289 | if (*ps == NULL((void*)0)) |
3290 | { |
3291 | *ps = (struct stab_types *) xmalloc (sizeof **ps); |
3292 | memset (*ps, 0, sizeof **ps); |
3293 | } |
3294 | |
3295 | return (*ps)->types + index; |
3296 | } |
3297 | |
3298 | /* Find a type given a type number. If the type has not been |
3299 | allocated yet, create an indirect type. */ |
3300 | |
3301 | static debug_type |
3302 | stab_find_type (void *dhandle, struct stab_handle *info, const int *typenums) |
3303 | { |
3304 | debug_type *slot; |
3305 | |
3306 | if (typenums[0] == 0 && typenums[1] < 0) |
3307 | { |
3308 | /* A negative type number indicates an XCOFF builtin type. */ |
3309 | return stab_xcoff_builtin_type (dhandle, info, typenums[1]); |
3310 | } |
3311 | |
3312 | slot = stab_find_slot (info, typenums); |
3313 | if (slot == NULL((void*)0)) |
3314 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
3315 | |
3316 | if (*slot == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
3317 | return debug_make_indirect_type (dhandle, slot, (const char *) NULL((void*)0)); |
3318 | |
3319 | return *slot; |
3320 | } |
3321 | |
3322 | /* Record that a given type number refers to a given type. */ |
3323 | |
3324 | static bfd_boolean |
3325 | stab_record_type (void *dhandle ATTRIBUTE_UNUSED__attribute__ ((__unused__)), struct stab_handle *info, |
3326 | const int *typenums, debug_type type) |
3327 | { |
3328 | debug_type *slot; |
3329 | |
3330 | slot = stab_find_slot (info, typenums); |
3331 | if (slot == NULL((void*)0)) |
3332 | return FALSE0; |
3333 | |
3334 | /* gdb appears to ignore type redefinitions, so we do as well. */ |
3335 | |
3336 | *slot = type; |
3337 | |
3338 | return TRUE1; |
3339 | } |
3340 | |
3341 | /* Return an XCOFF builtin type. */ |
3342 | |
3343 | static debug_type |
3344 | stab_xcoff_builtin_type (void *dhandle, struct stab_handle *info, |
3345 | int typenum) |
3346 | { |
3347 | debug_type rettype; |
3348 | const char *name; |
3349 | |
3350 | if (typenum >= 0 || typenum < -XCOFF_TYPE_COUNT34) |
3351 | { |
3352 | fprintf (stderr(&__sF[2]), _("Unrecognized XCOFF type %d\n")("Unrecognized XCOFF type %d\n"), typenum); |
3353 | return DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
3354 | } |
3355 | if (info->xcoff_types[-typenum] != NULL((void*)0)) |
3356 | return info->xcoff_types[-typenum]; |
3357 | |
3358 | switch (-typenum) |
3359 | { |
3360 | case 1: |
3361 | /* The size of this and all the other types are fixed, defined |
3362 | by the debugging format. */ |
3363 | name = "int"; |
3364 | rettype = debug_make_int_type (dhandle, 4, FALSE0); |
3365 | break; |
3366 | case 2: |
3367 | name = "char"; |
3368 | rettype = debug_make_int_type (dhandle, 1, FALSE0); |
3369 | break; |
3370 | case 3: |
3371 | name = "short"; |
3372 | rettype = debug_make_int_type (dhandle, 2, FALSE0); |
3373 | break; |
3374 | case 4: |
3375 | name = "long"; |
3376 | rettype = debug_make_int_type (dhandle, 4, FALSE0); |
3377 | break; |
3378 | case 5: |
3379 | name = "unsigned char"; |
3380 | rettype = debug_make_int_type (dhandle, 1, TRUE1); |
3381 | break; |
3382 | case 6: |
3383 | name = "signed char"; |
3384 | rettype = debug_make_int_type (dhandle, 1, FALSE0); |
3385 | break; |
3386 | case 7: |
3387 | name = "unsigned short"; |
3388 | rettype = debug_make_int_type (dhandle, 2, TRUE1); |
3389 | break; |
3390 | case 8: |
3391 | name = "unsigned int"; |
3392 | rettype = debug_make_int_type (dhandle, 4, TRUE1); |
3393 | break; |
3394 | case 9: |
3395 | name = "unsigned"; |
3396 | rettype = debug_make_int_type (dhandle, 4, TRUE1); |
3397 | case 10: |
3398 | name = "unsigned long"; |
3399 | rettype = debug_make_int_type (dhandle, 4, TRUE1); |
3400 | break; |
3401 | case 11: |
3402 | name = "void"; |
3403 | rettype = debug_make_void_type (dhandle); |
3404 | break; |
3405 | case 12: |
3406 | /* IEEE single precision (32 bit). */ |
3407 | name = "float"; |
3408 | rettype = debug_make_float_type (dhandle, 4); |
3409 | break; |
3410 | case 13: |
3411 | /* IEEE double precision (64 bit). */ |
3412 | name = "double"; |
3413 | rettype = debug_make_float_type (dhandle, 8); |
3414 | break; |
3415 | case 14: |
3416 | /* This is an IEEE double on the RS/6000, and different machines |
3417 | with different sizes for "long double" should use different |
3418 | negative type numbers. See stabs.texinfo. */ |
3419 | name = "long double"; |
3420 | rettype = debug_make_float_type (dhandle, 8); |
3421 | break; |
3422 | case 15: |
3423 | name = "integer"; |
3424 | rettype = debug_make_int_type (dhandle, 4, FALSE0); |
3425 | break; |
3426 | case 16: |
3427 | name = "boolean"; |
3428 | rettype = debug_make_bool_type (dhandle, 4); |
3429 | break; |
3430 | case 17: |
3431 | name = "short real"; |
3432 | rettype = debug_make_float_type (dhandle, 4); |
3433 | break; |
3434 | case 18: |
3435 | name = "real"; |
3436 | rettype = debug_make_float_type (dhandle, 8); |
3437 | break; |
3438 | case 19: |
3439 | /* FIXME */ |
3440 | name = "stringptr"; |
3441 | rettype = NULL((void*)0); |
3442 | break; |
3443 | case 20: |
3444 | /* FIXME */ |
3445 | name = "character"; |
3446 | rettype = debug_make_int_type (dhandle, 1, TRUE1); |
3447 | break; |
3448 | case 21: |
3449 | name = "logical*1"; |
3450 | rettype = debug_make_bool_type (dhandle, 1); |
3451 | break; |
3452 | case 22: |
3453 | name = "logical*2"; |
3454 | rettype = debug_make_bool_type (dhandle, 2); |
3455 | break; |
3456 | case 23: |
3457 | name = "logical*4"; |
3458 | rettype = debug_make_bool_type (dhandle, 4); |
3459 | break; |
3460 | case 24: |
3461 | name = "logical"; |
3462 | rettype = debug_make_bool_type (dhandle, 4); |
3463 | break; |
3464 | case 25: |
3465 | /* Complex type consisting of two IEEE single precision values. */ |
3466 | name = "complex"; |
3467 | rettype = debug_make_complex_type (dhandle, 8); |
3468 | break; |
3469 | case 26: |
3470 | /* Complex type consisting of two IEEE double precision values. */ |
3471 | name = "double complex"; |
3472 | rettype = debug_make_complex_type (dhandle, 16); |
3473 | break; |
3474 | case 27: |
3475 | name = "integer*1"; |
3476 | rettype = debug_make_int_type (dhandle, 1, FALSE0); |
3477 | break; |
3478 | case 28: |
3479 | name = "integer*2"; |
3480 | rettype = debug_make_int_type (dhandle, 2, FALSE0); |
3481 | break; |
3482 | case 29: |
3483 | name = "integer*4"; |
3484 | rettype = debug_make_int_type (dhandle, 4, FALSE0); |
3485 | break; |
3486 | case 30: |
3487 | /* FIXME */ |
3488 | name = "wchar"; |
3489 | rettype = debug_make_int_type (dhandle, 2, FALSE0); |
3490 | break; |
3491 | case 31: |
3492 | name = "long long"; |
3493 | rettype = debug_make_int_type (dhandle, 8, FALSE0); |
3494 | break; |
3495 | case 32: |
3496 | name = "unsigned long long"; |
3497 | rettype = debug_make_int_type (dhandle, 8, TRUE1); |
3498 | break; |
3499 | case 33: |
3500 | name = "logical*8"; |
3501 | rettype = debug_make_bool_type (dhandle, 8); |
3502 | break; |
3503 | case 34: |
3504 | name = "integer*8"; |
3505 | rettype = debug_make_int_type (dhandle, 8, FALSE0); |
3506 | break; |
3507 | default: |
3508 | abort (); |
3509 | } |
3510 | |
3511 | rettype = debug_name_type (dhandle, name, rettype); |
3512 | |
3513 | info->xcoff_types[-typenum] = rettype; |
3514 | |
3515 | return rettype; |
3516 | } |
3517 | |
3518 | /* Find or create a tagged type. */ |
3519 | |
3520 | static debug_type |
3521 | stab_find_tagged_type (void *dhandle, struct stab_handle *info, |
3522 | const char *p, int len, enum debug_type_kind kind) |
3523 | { |
3524 | char *name; |
3525 | debug_type dtype; |
3526 | struct stab_tag *st; |
3527 | |
3528 | name = savestring (p, len); |
3529 | |
3530 | /* We pass DEBUG_KIND_ILLEGAL because we want all tags in the same |
3531 | namespace. This is right for C, and I don't know how to handle |
3532 | other languages. FIXME. */ |
3533 | dtype = debug_find_tagged_type (dhandle, name, DEBUG_KIND_ILLEGAL); |
3534 | if (dtype != DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
3535 | { |
3536 | free (name); |
3537 | return dtype; |
3538 | } |
3539 | |
3540 | /* We need to allocate an entry on the undefined tag list. */ |
3541 | for (st = info->tags; st != NULL((void*)0); st = st->next) |
3542 | { |
3543 | if (st->name[0] == name[0] |
3544 | && strcmp (st->name, name) == 0) |
3545 | { |
3546 | if (st->kind == DEBUG_KIND_ILLEGAL) |
3547 | st->kind = kind; |
3548 | free (name); |
3549 | break; |
3550 | } |
3551 | } |
3552 | if (st == NULL((void*)0)) |
3553 | { |
3554 | st = (struct stab_tag *) xmalloc (sizeof *st); |
3555 | memset (st, 0, sizeof *st); |
3556 | |
3557 | st->next = info->tags; |
3558 | st->name = name; |
3559 | st->kind = kind; |
3560 | st->slot = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
3561 | st->type = debug_make_indirect_type (dhandle, &st->slot, name); |
3562 | info->tags = st; |
3563 | } |
3564 | |
3565 | return st->type; |
3566 | } |
3567 | |
3568 | /* In order to get the correct argument types for a stubbed method, we |
3569 | need to extract the argument types from a C++ mangled string. |
3570 | Since the argument types can refer back to the return type, this |
3571 | means that we must demangle the entire physical name. In gdb this |
3572 | is done by calling cplus_demangle and running the results back |
3573 | through the C++ expression parser. Since we have no expression |
3574 | parser, we must duplicate much of the work of cplus_demangle here. |
3575 | |
3576 | We assume that GNU style demangling is used, since this is only |
3577 | done for method stubs, and only g++ should output that form of |
3578 | debugging information. */ |
3579 | |
3580 | /* This structure is used to hold a pointer to type information which |
3581 | demangling a string. */ |
3582 | |
3583 | struct stab_demangle_typestring |
3584 | { |
3585 | /* The start of the type. This is not null terminated. */ |
3586 | const char *typestring; |
3587 | /* The length of the type. */ |
3588 | unsigned int len; |
3589 | }; |
3590 | |
3591 | /* This structure is used to hold information while demangling a |
3592 | string. */ |
3593 | |
3594 | struct stab_demangle_info |
3595 | { |
3596 | /* The debugging information handle. */ |
3597 | void *dhandle; |
3598 | /* The stab information handle. */ |
3599 | struct stab_handle *info; |
3600 | /* The array of arguments we are building. */ |
3601 | debug_type *args; |
3602 | /* Whether the method takes a variable number of arguments. */ |
3603 | bfd_boolean varargs; |
3604 | /* The array of types we have remembered. */ |
3605 | struct stab_demangle_typestring *typestrings; |
3606 | /* The number of typestrings. */ |
3607 | unsigned int typestring_count; |
3608 | /* The number of typestring slots we have allocated. */ |
3609 | unsigned int typestring_alloc; |
3610 | }; |
3611 | |
3612 | static void stab_bad_demangle (const char *); |
3613 | static unsigned int stab_demangle_count (const char **); |
3614 | static bfd_boolean stab_demangle_get_count (const char **, unsigned int *); |
3615 | static bfd_boolean stab_demangle_prefix |
3616 | (struct stab_demangle_info *, const char **, unsigned int); |
3617 | static bfd_boolean stab_demangle_function_name |
3618 | (struct stab_demangle_info *, const char **, const char *); |
3619 | static bfd_boolean stab_demangle_signature |
3620 | (struct stab_demangle_info *, const char **); |
3621 | static bfd_boolean stab_demangle_qualified |
3622 | (struct stab_demangle_info *, const char **, debug_type *); |
3623 | static bfd_boolean stab_demangle_template |
3624 | (struct stab_demangle_info *, const char **, char **); |
3625 | static bfd_boolean stab_demangle_class |
3626 | (struct stab_demangle_info *, const char **, const char **); |
3627 | static bfd_boolean stab_demangle_args |
3628 | (struct stab_demangle_info *, const char **, debug_type **, bfd_boolean *); |
3629 | static bfd_boolean stab_demangle_arg |
3630 | (struct stab_demangle_info *, const char **, debug_type **, |
3631 | unsigned int *, unsigned int *); |
3632 | static bfd_boolean stab_demangle_type |
3633 | (struct stab_demangle_info *, const char **, debug_type *); |
3634 | static bfd_boolean stab_demangle_fund_type |
3635 | (struct stab_demangle_info *, const char **, debug_type *); |
3636 | static bfd_boolean stab_demangle_remember_type |
3637 | (struct stab_demangle_info *, const char *, int); |
3638 | |
3639 | /* Warn about a bad demangling. */ |
3640 | |
3641 | static void |
3642 | stab_bad_demangle (const char *s) |
3643 | { |
3644 | fprintf (stderr(&__sF[2]), _("bad mangled name `%s'\n")("bad mangled name `%s'\n"), s); |
3645 | } |
3646 | |
3647 | /* Get a count from a stab string. */ |
3648 | |
3649 | static unsigned int |
3650 | stab_demangle_count (const char **pp) |
3651 | { |
3652 | unsigned int count; |
3653 | |
3654 | count = 0; |
3655 | while (ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit ))) |
3656 | { |
3657 | count *= 10; |
3658 | count += **pp - '0'; |
3659 | ++*pp; |
3660 | } |
3661 | return count; |
3662 | } |
3663 | |
3664 | /* Require a count in a string. The count may be multiple digits, in |
3665 | which case it must end in an underscore. */ |
3666 | |
3667 | static bfd_boolean |
3668 | stab_demangle_get_count (const char **pp, unsigned int *pi) |
3669 | { |
3670 | if (! ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit ))) |
3671 | return FALSE0; |
3672 | |
3673 | *pi = **pp - '0'; |
3674 | ++*pp; |
3675 | if (ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit ))) |
3676 | { |
3677 | unsigned int count; |
3678 | const char *p; |
3679 | |
3680 | count = *pi; |
3681 | p = *pp; |
3682 | do |
3683 | { |
3684 | count *= 10; |
3685 | count += *p - '0'; |
3686 | ++p; |
3687 | } |
3688 | while (ISDIGIT (*p)(_sch_istable[(*p) & 0xff] & (unsigned short)(_sch_isdigit ))); |
3689 | if (*p == '_') |
3690 | { |
3691 | *pp = p + 1; |
3692 | *pi = count; |
3693 | } |
3694 | } |
3695 | |
3696 | return TRUE1; |
3697 | } |
3698 | |
3699 | /* This function demangles a physical name, returning a NULL |
3700 | terminated array of argument types. */ |
3701 | |
3702 | static debug_type * |
3703 | stab_demangle_argtypes (void *dhandle, struct stab_handle *info, |
3704 | const char *physname, bfd_boolean *pvarargs, |
3705 | unsigned int physname_len) |
3706 | { |
3707 | struct stab_demangle_info minfo; |
3708 | |
3709 | /* Check for the g++ V3 ABI. */ |
3710 | if (physname[0] == '_' && physname[1] == 'Z') |
3711 | return stab_demangle_v3_argtypes (dhandle, info, physname, pvarargs); |
3712 | |
3713 | minfo.dhandle = dhandle; |
3714 | minfo.info = info; |
3715 | minfo.args = NULL((void*)0); |
3716 | minfo.varargs = FALSE0; |
3717 | minfo.typestring_alloc = 10; |
3718 | minfo.typestrings = ((struct stab_demangle_typestring *) |
3719 | xmalloc (minfo.typestring_alloc |
3720 | * sizeof *minfo.typestrings)); |
3721 | minfo.typestring_count = 0; |
3722 | |
3723 | /* cplus_demangle checks for special GNU mangled forms, but we can't |
3724 | see any of them in mangled method argument types. */ |
3725 | |
3726 | if (! stab_demangle_prefix (&minfo, &physname, physname_len)) |
3727 | goto error_return; |
3728 | |
3729 | if (*physname != '\0') |
3730 | { |
3731 | if (! stab_demangle_signature (&minfo, &physname)) |
3732 | goto error_return; |
3733 | } |
3734 | |
3735 | free (minfo.typestrings); |
3736 | minfo.typestrings = NULL((void*)0); |
3737 | |
3738 | if (minfo.args == NULL((void*)0)) |
3739 | fprintf (stderr(&__sF[2]), _("no argument types in mangled string\n")("no argument types in mangled string\n")); |
3740 | |
3741 | *pvarargs = minfo.varargs; |
3742 | return minfo.args; |
3743 | |
3744 | error_return: |
3745 | if (minfo.typestrings != NULL((void*)0)) |
3746 | free (minfo.typestrings); |
3747 | return NULL((void*)0); |
3748 | } |
3749 | |
3750 | /* Demangle the prefix of the mangled name. */ |
3751 | |
3752 | static bfd_boolean |
3753 | stab_demangle_prefix (struct stab_demangle_info *minfo, const char **pp, |
3754 | unsigned int physname_len) |
3755 | { |
3756 | const char *scan; |
3757 | unsigned int i; |
3758 | |
3759 | /* cplus_demangle checks for global constructors and destructors, |
3760 | but we can't see them in mangled argument types. */ |
3761 | |
3762 | if (physname_len) |
3763 | scan = *pp + physname_len; |
3764 | else |
3765 | { |
3766 | /* Look for `__'. */ |
3767 | scan = *pp; |
3768 | do |
3769 | scan = strchr (scan, '_'); |
3770 | while (scan != NULL((void*)0) && *++scan != '_'); |
3771 | |
3772 | if (scan == NULL((void*)0)) |
3773 | { |
3774 | stab_bad_demangle (*pp); |
3775 | return FALSE0; |
3776 | } |
3777 | |
3778 | --scan; |
3779 | |
3780 | /* We found `__'; move ahead to the last contiguous `__' pair. */ |
3781 | i = strspn (scan, "_"); |
3782 | if (i > 2) |
3783 | scan += i - 2; |
3784 | } |
3785 | |
3786 | if (scan == *pp |
3787 | && (ISDIGIT (scan[2])(_sch_istable[(scan[2]) & 0xff] & (unsigned short)(_sch_isdigit )) |
3788 | || scan[2] == 'Q' |
3789 | || scan[2] == 't')) |
3790 | { |
3791 | /* This is a GNU style constructor name. */ |
3792 | *pp = scan + 2; |
3793 | return TRUE1; |
3794 | } |
3795 | else if (scan == *pp |
3796 | && ! ISDIGIT (scan[2])(_sch_istable[(scan[2]) & 0xff] & (unsigned short)(_sch_isdigit )) |
3797 | && scan[2] != 't') |
3798 | { |
3799 | /* Look for the `__' that separates the prefix from the |
3800 | signature. */ |
3801 | while (*scan == '_') |
3802 | ++scan; |
3803 | scan = strstr (scan, "__"); |
3804 | if (scan == NULL((void*)0) || scan[2] == '\0') |
3805 | { |
3806 | stab_bad_demangle (*pp); |
3807 | return FALSE0; |
3808 | } |
3809 | |
3810 | return stab_demangle_function_name (minfo, pp, scan); |
3811 | } |
3812 | else if (scan[2] != '\0') |
3813 | { |
3814 | /* The name doesn't start with `__', but it does contain `__'. */ |
3815 | return stab_demangle_function_name (minfo, pp, scan); |
3816 | } |
3817 | else |
3818 | { |
3819 | stab_bad_demangle (*pp); |
3820 | return FALSE0; |
3821 | } |
3822 | /*NOTREACHED*/ |
3823 | } |
3824 | |
3825 | /* Demangle a function name prefix. The scan argument points to the |
3826 | double underscore which separates the function name from the |
3827 | signature. */ |
3828 | |
3829 | static bfd_boolean |
3830 | stab_demangle_function_name (struct stab_demangle_info *minfo, |
3831 | const char **pp, const char *scan) |
3832 | { |
3833 | const char *name; |
3834 | |
3835 | /* The string from *pp to scan is the name of the function. We |
3836 | don't care about the name, since we just looking for argument |
3837 | types. However, for conversion operators, the name may include a |
3838 | type which we must remember in order to handle backreferences. */ |
3839 | |
3840 | name = *pp; |
3841 | *pp = scan + 2; |
3842 | |
3843 | if (*pp - name >= 5 |
3844 | && strncmp (name, "type", 4) == 0 |
3845 | && (name[4] == '$' || name[4] == '.')) |
3846 | { |
3847 | const char *tem; |
3848 | |
3849 | /* This is a type conversion operator. */ |
3850 | tem = name + 5; |
3851 | if (! stab_demangle_type (minfo, &tem, (debug_type *) NULL((void*)0))) |
3852 | return FALSE0; |
3853 | } |
3854 | else if (name[0] == '_' |
3855 | && name[1] == '_' |
3856 | && name[2] == 'o' |
3857 | && name[3] == 'p') |
3858 | { |
3859 | const char *tem; |
3860 | |
3861 | /* This is a type conversion operator. */ |
3862 | tem = name + 4; |
3863 | if (! stab_demangle_type (minfo, &tem, (debug_type *) NULL((void*)0))) |
3864 | return FALSE0; |
3865 | } |
3866 | |
3867 | return TRUE1; |
3868 | } |
3869 | |
3870 | /* Demangle the signature. This is where the argument types are |
3871 | found. */ |
3872 | |
3873 | static bfd_boolean |
3874 | stab_demangle_signature (struct stab_demangle_info *minfo, const char **pp) |
3875 | { |
3876 | const char *orig; |
3877 | bfd_boolean expect_func, func_done; |
3878 | const char *hold; |
3879 | |
3880 | orig = *pp; |
3881 | |
3882 | expect_func = FALSE0; |
3883 | func_done = FALSE0; |
3884 | hold = NULL((void*)0); |
3885 | |
3886 | while (**pp != '\0') |
3887 | { |
3888 | switch (**pp) |
3889 | { |
3890 | case 'Q': |
3891 | hold = *pp; |
3892 | if (! stab_demangle_qualified (minfo, pp, (debug_type *) NULL((void*)0)) |
3893 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) |
3894 | return FALSE0; |
3895 | expect_func = TRUE1; |
3896 | hold = NULL((void*)0); |
3897 | break; |
3898 | |
3899 | case 'S': |
3900 | /* Static member function. FIXME: Can this happen? */ |
3901 | if (hold == NULL((void*)0)) |
3902 | hold = *pp; |
3903 | ++*pp; |
3904 | break; |
3905 | |
3906 | case 'C': |
3907 | /* Const member function. */ |
3908 | if (hold == NULL((void*)0)) |
3909 | hold = *pp; |
3910 | ++*pp; |
3911 | break; |
3912 | |
3913 | case '0': case '1': case '2': case '3': case '4': |
3914 | case '5': case '6': case '7': case '8': case '9': |
3915 | if (hold == NULL((void*)0)) |
3916 | hold = *pp; |
3917 | if (! stab_demangle_class (minfo, pp, (const char **) NULL((void*)0)) |
3918 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) |
3919 | return FALSE0; |
3920 | expect_func = TRUE1; |
3921 | hold = NULL((void*)0); |
3922 | break; |
3923 | |
3924 | case 'F': |
3925 | /* Function. I don't know if this actually happens with g++ |
3926 | output. */ |
3927 | hold = NULL((void*)0); |
3928 | func_done = TRUE1; |
3929 | ++*pp; |
3930 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) |
3931 | return FALSE0; |
3932 | break; |
3933 | |
3934 | case 't': |
3935 | /* Template. */ |
3936 | if (hold == NULL((void*)0)) |
3937 | hold = *pp; |
3938 | if (! stab_demangle_template (minfo, pp, (char **) NULL((void*)0)) |
3939 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) |
3940 | return FALSE0; |
3941 | hold = NULL((void*)0); |
3942 | expect_func = TRUE1; |
3943 | break; |
3944 | |
3945 | case '_': |
3946 | /* At the outermost level, we cannot have a return type |
3947 | specified, so if we run into another '_' at this point we |
3948 | are dealing with a mangled name that is either bogus, or |
3949 | has been mangled by some algorithm we don't know how to |
3950 | deal with. So just reject the entire demangling. */ |
3951 | stab_bad_demangle (orig); |
3952 | return FALSE0; |
3953 | |
3954 | default: |
3955 | /* Assume we have stumbled onto the first outermost function |
3956 | argument token, and start processing args. */ |
3957 | func_done = TRUE1; |
3958 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) |
3959 | return FALSE0; |
3960 | break; |
3961 | } |
3962 | |
3963 | if (expect_func) |
3964 | { |
3965 | func_done = TRUE1; |
3966 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) |
3967 | return FALSE0; |
3968 | } |
3969 | } |
3970 | |
3971 | if (! func_done) |
3972 | { |
3973 | /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and |
3974 | bar__3fooi is 'foo::bar(int)'. We get here when we find the |
3975 | first case, and need to ensure that the '(void)' gets added |
3976 | to the current declp. */ |
3977 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) |
3978 | return FALSE0; |
3979 | } |
3980 | |
3981 | return TRUE1; |
3982 | } |
3983 | |
3984 | /* Demangle a qualified name, such as "Q25Outer5Inner" which is the |
3985 | mangled form of "Outer::Inner". */ |
3986 | |
3987 | static bfd_boolean |
3988 | stab_demangle_qualified (struct stab_demangle_info *minfo, const char **pp, |
3989 | debug_type *ptype) |
3990 | { |
3991 | const char *orig; |
3992 | const char *p; |
3993 | unsigned int qualifiers; |
3994 | debug_type context; |
3995 | |
3996 | orig = *pp; |
3997 | |
3998 | switch ((*pp)[1]) |
3999 | { |
4000 | case '_': |
4001 | /* GNU mangled name with more than 9 classes. The count is |
4002 | preceded by an underscore (to distinguish it from the <= 9 |
4003 | case) and followed by an underscore. */ |
4004 | p = *pp + 2; |
4005 | if (! ISDIGIT (*p)(_sch_istable[(*p) & 0xff] & (unsigned short)(_sch_isdigit )) || *p == '0') |
4006 | { |
4007 | stab_bad_demangle (orig); |
4008 | return FALSE0; |
4009 | } |
4010 | qualifiers = atoi (p); |
4011 | while (ISDIGIT (*p)(_sch_istable[(*p) & 0xff] & (unsigned short)(_sch_isdigit ))) |
4012 | ++p; |
4013 | if (*p != '_') |
4014 | { |
4015 | stab_bad_demangle (orig); |
4016 | return FALSE0; |
4017 | } |
4018 | *pp = p + 1; |
4019 | break; |
4020 | |
4021 | case '1': case '2': case '3': case '4': case '5': |
4022 | case '6': case '7': case '8': case '9': |
4023 | qualifiers = (*pp)[1] - '0'; |
4024 | /* Skip an optional underscore after the count. */ |
4025 | if ((*pp)[2] == '_') |
4026 | ++*pp; |
4027 | *pp += 2; |
4028 | break; |
4029 | |
4030 | case '0': |
4031 | default: |
4032 | stab_bad_demangle (orig); |
4033 | return FALSE0; |
4034 | } |
4035 | |
4036 | context = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
4037 | |
4038 | /* Pick off the names. */ |
4039 | while (qualifiers-- > 0) |
4040 | { |
4041 | if (**pp == '_') |
4042 | ++*pp; |
4043 | if (**pp == 't') |
4044 | { |
4045 | char *name; |
4046 | |
4047 | if (! stab_demangle_template (minfo, pp, |
4048 | ptype != NULL((void*)0) ? &name : NULL((void*)0))) |
4049 | return FALSE0; |
4050 | |
4051 | if (ptype != NULL((void*)0)) |
4052 | { |
4053 | context = stab_find_tagged_type (minfo->dhandle, minfo->info, |
4054 | name, strlen (name), |
4055 | DEBUG_KIND_CLASS); |
4056 | free (name); |
4057 | if (context == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4058 | return FALSE0; |
4059 | } |
4060 | } |
4061 | else |
4062 | { |
4063 | unsigned int len; |
4064 | |
4065 | len = stab_demangle_count (pp); |
4066 | if (strlen (*pp) < len) |
4067 | { |
4068 | stab_bad_demangle (orig); |
4069 | return FALSE0; |
4070 | } |
4071 | |
4072 | if (ptype != NULL((void*)0)) |
4073 | { |
4074 | const debug_field *fields; |
4075 | |
4076 | fields = NULL((void*)0); |
4077 | if (context != DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4078 | fields = debug_get_fields (minfo->dhandle, context); |
4079 | |
4080 | context = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
4081 | |
4082 | if (fields != NULL((void*)0)) |
4083 | { |
4084 | char *name; |
4085 | |
4086 | /* Try to find the type by looking through the |
4087 | fields of context until we find a field with the |
4088 | same type. This ought to work for a class |
4089 | defined within a class, but it won't work for, |
4090 | e.g., an enum defined within a class. stabs does |
4091 | not give us enough information to figure out the |
4092 | latter case. */ |
4093 | |
4094 | name = savestring (*pp, len); |
4095 | |
4096 | for (; *fields != DEBUG_FIELD_NULL((debug_field) ((void*)0)); fields++) |
4097 | { |
4098 | debug_type ft; |
4099 | const char *dn; |
4100 | |
4101 | ft = debug_get_field_type (minfo->dhandle, *fields); |
4102 | if (ft == NULL((void*)0)) |
4103 | return FALSE0; |
4104 | dn = debug_get_type_name (minfo->dhandle, ft); |
4105 | if (dn != NULL((void*)0) && strcmp (dn, name) == 0) |
4106 | { |
4107 | context = ft; |
4108 | break; |
4109 | } |
4110 | } |
4111 | |
4112 | free (name); |
4113 | } |
4114 | |
4115 | if (context == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4116 | { |
4117 | /* We have to fall back on finding the type by name. |
4118 | If there are more types to come, then this must |
4119 | be a class. Otherwise, it could be anything. */ |
4120 | |
4121 | if (qualifiers == 0) |
4122 | { |
4123 | char *name; |
4124 | |
4125 | name = savestring (*pp, len); |
4126 | context = debug_find_named_type (minfo->dhandle, |
4127 | name); |
4128 | free (name); |
4129 | } |
4130 | |
4131 | if (context == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4132 | { |
4133 | context = stab_find_tagged_type (minfo->dhandle, |
4134 | minfo->info, |
4135 | *pp, len, |
4136 | (qualifiers == 0 |
4137 | ? DEBUG_KIND_ILLEGAL |
4138 | : DEBUG_KIND_CLASS)); |
4139 | if (context == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4140 | return FALSE0; |
4141 | } |
4142 | } |
4143 | } |
4144 | |
4145 | *pp += len; |
4146 | } |
4147 | } |
4148 | |
4149 | if (ptype != NULL((void*)0)) |
4150 | *ptype = context; |
4151 | |
4152 | return TRUE1; |
4153 | } |
4154 | |
4155 | /* Demangle a template. If PNAME is not NULL, this sets *PNAME to a |
4156 | string representation of the template. */ |
4157 | |
4158 | static bfd_boolean |
4159 | stab_demangle_template (struct stab_demangle_info *minfo, const char **pp, |
4160 | char **pname) |
4161 | { |
4162 | const char *orig; |
4163 | unsigned int r, i; |
4164 | |
4165 | orig = *pp; |
4166 | |
4167 | ++*pp; |
4168 | |
4169 | /* Skip the template name. */ |
4170 | r = stab_demangle_count (pp); |
4171 | if (r == 0 || strlen (*pp) < r) |
4172 | { |
4173 | stab_bad_demangle (orig); |
4174 | return FALSE0; |
4175 | } |
4176 | *pp += r; |
4177 | |
4178 | /* Get the size of the parameter list. */ |
4179 | if (stab_demangle_get_count (pp, &r) == 0) |
4180 | { |
4181 | stab_bad_demangle (orig); |
4182 | return FALSE0; |
4183 | } |
4184 | |
4185 | for (i = 0; i < r; i++) |
4186 | { |
4187 | if (**pp == 'Z') |
4188 | { |
4189 | /* This is a type parameter. */ |
4190 | ++*pp; |
4191 | if (! stab_demangle_type (minfo, pp, (debug_type *) NULL((void*)0))) |
4192 | return FALSE0; |
4193 | } |
4194 | else |
4195 | { |
4196 | const char *old_p; |
4197 | bfd_boolean pointerp, realp, integralp, charp, boolp; |
4198 | bfd_boolean done; |
4199 | |
4200 | old_p = *pp; |
4201 | pointerp = FALSE0; |
4202 | realp = FALSE0; |
4203 | integralp = FALSE0; |
4204 | charp = FALSE0; |
4205 | boolp = FALSE0; |
4206 | done = FALSE0; |
4207 | |
4208 | /* This is a value parameter. */ |
4209 | |
4210 | if (! stab_demangle_type (minfo, pp, (debug_type *) NULL((void*)0))) |
4211 | return FALSE0; |
4212 | |
4213 | while (*old_p != '\0' && ! done) |
4214 | { |
4215 | switch (*old_p) |
4216 | { |
4217 | case 'P': |
4218 | case 'p': |
4219 | case 'R': |
4220 | pointerp = TRUE1; |
4221 | done = TRUE1; |
4222 | break; |
4223 | case 'C': /* Const. */ |
4224 | case 'S': /* Signed. */ |
4225 | case 'U': /* Unsigned. */ |
4226 | case 'V': /* Volatile. */ |
4227 | case 'F': /* Function. */ |
4228 | case 'M': /* Member function. */ |
4229 | case 'O': /* ??? */ |
4230 | ++old_p; |
4231 | break; |
4232 | case 'Q': /* Qualified name. */ |
4233 | integralp = TRUE1; |
4234 | done = TRUE1; |
4235 | break; |
4236 | case 'T': /* Remembered type. */ |
4237 | abort (); |
4238 | case 'v': /* Void. */ |
4239 | abort (); |
4240 | case 'x': /* Long long. */ |
4241 | case 'l': /* Long. */ |
4242 | case 'i': /* Int. */ |
4243 | case 's': /* Short. */ |
4244 | case 'w': /* Wchar_t. */ |
4245 | integralp = TRUE1; |
4246 | done = TRUE1; |
4247 | break; |
4248 | case 'b': /* Bool. */ |
4249 | boolp = TRUE1; |
4250 | done = TRUE1; |
4251 | break; |
4252 | case 'c': /* Char. */ |
4253 | charp = TRUE1; |
4254 | done = TRUE1; |
4255 | break; |
4256 | case 'r': /* Long double. */ |
4257 | case 'd': /* Double. */ |
4258 | case 'f': /* Float. */ |
4259 | realp = TRUE1; |
4260 | done = TRUE1; |
4261 | break; |
4262 | default: |
4263 | /* Assume it's a user defined integral type. */ |
4264 | integralp = TRUE1; |
4265 | done = TRUE1; |
4266 | break; |
4267 | } |
4268 | } |
4269 | |
4270 | if (integralp) |
4271 | { |
4272 | if (**pp == 'm') |
4273 | ++*pp; |
4274 | while (ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit ))) |
4275 | ++*pp; |
4276 | } |
4277 | else if (charp) |
4278 | { |
4279 | unsigned int val; |
4280 | |
4281 | if (**pp == 'm') |
4282 | ++*pp; |
4283 | val = stab_demangle_count (pp); |
4284 | if (val == 0) |
4285 | { |
4286 | stab_bad_demangle (orig); |
4287 | return FALSE0; |
4288 | } |
4289 | } |
4290 | else if (boolp) |
4291 | { |
4292 | unsigned int val; |
4293 | |
4294 | val = stab_demangle_count (pp); |
4295 | if (val != 0 && val != 1) |
4296 | { |
4297 | stab_bad_demangle (orig); |
4298 | return FALSE0; |
4299 | } |
4300 | } |
4301 | else if (realp) |
4302 | { |
4303 | if (**pp == 'm') |
4304 | ++*pp; |
4305 | while (ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit ))) |
4306 | ++*pp; |
4307 | if (**pp == '.') |
4308 | { |
4309 | ++*pp; |
4310 | while (ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit ))) |
4311 | ++*pp; |
4312 | } |
4313 | if (**pp == 'e') |
4314 | { |
4315 | ++*pp; |
4316 | while (ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit ))) |
4317 | ++*pp; |
4318 | } |
4319 | } |
4320 | else if (pointerp) |
4321 | { |
4322 | unsigned int len; |
4323 | |
4324 | len = stab_demangle_count (pp); |
4325 | if (len == 0) |
4326 | { |
4327 | stab_bad_demangle (orig); |
4328 | return FALSE0; |
4329 | } |
4330 | *pp += len; |
4331 | } |
4332 | } |
4333 | } |
4334 | |
4335 | /* We can translate this to a string fairly easily by invoking the |
4336 | regular demangling routine. */ |
4337 | if (pname != NULL((void*)0)) |
4338 | { |
4339 | char *s1, *s2, *s3, *s4 = NULL((void*)0); |
4340 | char *from, *to; |
4341 | |
4342 | s1 = savestring (orig, *pp - orig); |
4343 | |
4344 | s2 = concat ("NoSuchStrinG__", s1, (const char *) NULL((void*)0)); |
4345 | |
4346 | free (s1); |
4347 | |
4348 | s3 = cplus_demangle (s2, DMGL_ANSI(1 << 1)); |
4349 | |
4350 | free (s2); |
4351 | |
4352 | if (s3 != NULL((void*)0)) |
4353 | s4 = strstr (s3, "::NoSuchStrinG"); |
4354 | if (s3 == NULL((void*)0) || s4 == NULL((void*)0)) |
4355 | { |
4356 | stab_bad_demangle (orig); |
4357 | if (s3 != NULL((void*)0)) |
4358 | free (s3); |
4359 | return FALSE0; |
4360 | } |
4361 | |
4362 | /* Eliminating all spaces, except those between > characters, |
4363 | makes it more likely that the demangled name will match the |
4364 | name which g++ used as the structure name. */ |
4365 | for (from = to = s3; from != s4; ++from) |
4366 | if (*from != ' ' |
4367 | || (from[1] == '>' && from > s3 && from[-1] == '>')) |
4368 | *to++ = *from; |
4369 | |
4370 | *pname = savestring (s3, to - s3); |
4371 | |
4372 | free (s3); |
4373 | } |
4374 | |
4375 | return TRUE1; |
4376 | } |
4377 | |
4378 | /* Demangle a class name. */ |
4379 | |
4380 | static bfd_boolean |
4381 | stab_demangle_class (struct stab_demangle_info *minfo ATTRIBUTE_UNUSED__attribute__ ((__unused__)), |
4382 | const char **pp, const char **pstart) |
4383 | { |
4384 | const char *orig; |
4385 | unsigned int n; |
4386 | |
4387 | orig = *pp; |
4388 | |
4389 | n = stab_demangle_count (pp); |
4390 | if (strlen (*pp) < n) |
4391 | { |
4392 | stab_bad_demangle (orig); |
4393 | return FALSE0; |
4394 | } |
4395 | |
4396 | if (pstart != NULL((void*)0)) |
4397 | *pstart = *pp; |
4398 | |
4399 | *pp += n; |
4400 | |
4401 | return TRUE1; |
4402 | } |
4403 | |
4404 | /* Demangle function arguments. If the pargs argument is not NULL, it |
4405 | is set to a NULL terminated array holding the arguments. */ |
4406 | |
4407 | static bfd_boolean |
4408 | stab_demangle_args (struct stab_demangle_info *minfo, const char **pp, |
4409 | debug_type **pargs, bfd_boolean *pvarargs) |
4410 | { |
4411 | const char *orig; |
4412 | unsigned int alloc, count; |
4413 | |
4414 | orig = *pp; |
4415 | |
4416 | alloc = 10; |
4417 | if (pargs != NULL((void*)0)) |
4418 | { |
4419 | *pargs = (debug_type *) xmalloc (alloc * sizeof **pargs); |
4420 | *pvarargs = FALSE0; |
4421 | } |
4422 | count = 0; |
4423 | |
4424 | while (**pp != '_' && **pp != '\0' && **pp != 'e') |
4425 | { |
4426 | if (**pp == 'N' || **pp == 'T') |
4427 | { |
4428 | char temptype; |
4429 | unsigned int r, t; |
4430 | |
4431 | temptype = **pp; |
4432 | ++*pp; |
4433 | |
4434 | if (temptype == 'T') |
4435 | r = 1; |
4436 | else |
4437 | { |
4438 | if (! stab_demangle_get_count (pp, &r)) |
4439 | { |
4440 | stab_bad_demangle (orig); |
4441 | return FALSE0; |
4442 | } |
4443 | } |
4444 | |
4445 | if (! stab_demangle_get_count (pp, &t)) |
4446 | { |
4447 | stab_bad_demangle (orig); |
4448 | return FALSE0; |
4449 | } |
4450 | |
4451 | if (t >= minfo->typestring_count) |
4452 | { |
4453 | stab_bad_demangle (orig); |
4454 | return FALSE0; |
4455 | } |
4456 | while (r-- > 0) |
4457 | { |
4458 | const char *tem; |
4459 | |
4460 | tem = minfo->typestrings[t].typestring; |
4461 | if (! stab_demangle_arg (minfo, &tem, pargs, &count, &alloc)) |
4462 | return FALSE0; |
4463 | } |
4464 | } |
4465 | else |
4466 | { |
4467 | if (! stab_demangle_arg (minfo, pp, pargs, &count, &alloc)) |
4468 | return FALSE0; |
4469 | } |
4470 | } |
4471 | |
4472 | if (pargs != NULL((void*)0)) |
4473 | (*pargs)[count] = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
4474 | |
4475 | if (**pp == 'e') |
4476 | { |
4477 | if (pargs != NULL((void*)0)) |
4478 | *pvarargs = TRUE1; |
4479 | ++*pp; |
4480 | } |
4481 | |
4482 | return TRUE1; |
4483 | } |
4484 | |
4485 | /* Demangle a single argument. */ |
4486 | |
4487 | static bfd_boolean |
4488 | stab_demangle_arg (struct stab_demangle_info *minfo, const char **pp, |
4489 | debug_type **pargs, unsigned int *pcount, |
4490 | unsigned int *palloc) |
4491 | { |
4492 | const char *start; |
4493 | debug_type type; |
4494 | |
4495 | start = *pp; |
4496 | if (! stab_demangle_type (minfo, pp, |
4497 | pargs == NULL((void*)0) ? (debug_type *) NULL((void*)0) : &type) |
4498 | || ! stab_demangle_remember_type (minfo, start, *pp - start)) |
4499 | return FALSE0; |
4500 | |
4501 | if (pargs != NULL((void*)0)) |
4502 | { |
4503 | if (type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4504 | return FALSE0; |
4505 | |
4506 | if (*pcount + 1 >= *palloc) |
4507 | { |
4508 | *palloc += 10; |
4509 | *pargs = ((debug_type *) |
4510 | xrealloc (*pargs, *palloc * sizeof **pargs)); |
4511 | } |
4512 | (*pargs)[*pcount] = type; |
4513 | ++*pcount; |
4514 | } |
4515 | |
4516 | return TRUE1; |
4517 | } |
4518 | |
4519 | /* Demangle a type. If the ptype argument is not NULL, *ptype is set |
4520 | to the newly allocated type. */ |
4521 | |
4522 | static bfd_boolean |
4523 | stab_demangle_type (struct stab_demangle_info *minfo, const char **pp, |
4524 | debug_type *ptype) |
4525 | { |
4526 | const char *orig; |
4527 | |
4528 | orig = *pp; |
4529 | |
4530 | switch (**pp) |
4531 | { |
4532 | case 'P': |
4533 | case 'p': |
4534 | /* A pointer type. */ |
4535 | ++*pp; |
4536 | if (! stab_demangle_type (minfo, pp, ptype)) |
4537 | return FALSE0; |
4538 | if (ptype != NULL((void*)0)) |
4539 | *ptype = debug_make_pointer_type (minfo->dhandle, *ptype); |
4540 | break; |
4541 | |
4542 | case 'R': |
4543 | /* A reference type. */ |
4544 | ++*pp; |
4545 | if (! stab_demangle_type (minfo, pp, ptype)) |
4546 | return FALSE0; |
4547 | if (ptype != NULL((void*)0)) |
4548 | *ptype = debug_make_reference_type (minfo->dhandle, *ptype); |
4549 | break; |
4550 | |
4551 | case 'A': |
4552 | /* An array. */ |
4553 | { |
4554 | unsigned long high; |
4555 | |
4556 | ++*pp; |
4557 | high = 0; |
4558 | while (**pp != '\0' && **pp != '_') |
4559 | { |
4560 | if (! ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit ))) |
4561 | { |
4562 | stab_bad_demangle (orig); |
4563 | return FALSE0; |
4564 | } |
4565 | high *= 10; |
4566 | high += **pp - '0'; |
4567 | ++*pp; |
4568 | } |
4569 | if (**pp != '_') |
4570 | { |
4571 | stab_bad_demangle (orig); |
4572 | return FALSE0; |
4573 | } |
4574 | ++*pp; |
4575 | |
4576 | if (! stab_demangle_type (minfo, pp, ptype)) |
4577 | return FALSE0; |
4578 | if (ptype != NULL((void*)0)) |
4579 | { |
4580 | debug_type int_type; |
4581 | |
4582 | int_type = debug_find_named_type (minfo->dhandle, "int"); |
4583 | if (int_type == NULL((void*)0)) |
4584 | int_type = debug_make_int_type (minfo->dhandle, 4, FALSE0); |
4585 | *ptype = debug_make_array_type (minfo->dhandle, *ptype, int_type, |
4586 | 0, high, FALSE0); |
4587 | } |
4588 | } |
4589 | break; |
4590 | |
4591 | case 'T': |
4592 | /* A back reference to a remembered type. */ |
4593 | { |
4594 | unsigned int i; |
4595 | const char *p; |
4596 | |
4597 | ++*pp; |
4598 | if (! stab_demangle_get_count (pp, &i)) |
4599 | { |
4600 | stab_bad_demangle (orig); |
4601 | return FALSE0; |
4602 | } |
4603 | if (i >= minfo->typestring_count) |
4604 | { |
4605 | stab_bad_demangle (orig); |
4606 | return FALSE0; |
4607 | } |
4608 | p = minfo->typestrings[i].typestring; |
4609 | if (! stab_demangle_type (minfo, &p, ptype)) |
4610 | return FALSE0; |
4611 | } |
4612 | break; |
4613 | |
4614 | case 'F': |
4615 | /* A function. */ |
4616 | { |
4617 | debug_type *args; |
4618 | bfd_boolean varargs; |
4619 | |
4620 | ++*pp; |
4621 | if (! stab_demangle_args (minfo, pp, |
4622 | (ptype == NULL((void*)0) |
4623 | ? (debug_type **) NULL((void*)0) |
4624 | : &args), |
4625 | (ptype == NULL((void*)0) |
4626 | ? (bfd_boolean *) NULL((void*)0) |
4627 | : &varargs))) |
4628 | return FALSE0; |
4629 | if (**pp != '_') |
4630 | { |
4631 | /* cplus_demangle will accept a function without a return |
4632 | type, but I don't know when that will happen, or what |
4633 | to do if it does. */ |
4634 | stab_bad_demangle (orig); |
4635 | return FALSE0; |
4636 | } |
4637 | ++*pp; |
4638 | if (! stab_demangle_type (minfo, pp, ptype)) |
4639 | return FALSE0; |
4640 | if (ptype != NULL((void*)0)) |
4641 | *ptype = debug_make_function_type (minfo->dhandle, *ptype, args, |
4642 | varargs); |
4643 | |
4644 | } |
4645 | break; |
4646 | |
4647 | case 'M': |
4648 | case 'O': |
4649 | { |
4650 | bfd_boolean memberp, constp, volatilep; |
4651 | debug_type class_type = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
4652 | debug_type *args; |
4653 | bfd_boolean varargs; |
4654 | unsigned int n; |
4655 | const char *name; |
4656 | |
4657 | memberp = **pp == 'M'; |
4658 | constp = FALSE0; |
4659 | volatilep = FALSE0; |
4660 | args = NULL((void*)0); |
4661 | varargs = FALSE0; |
4662 | |
4663 | ++*pp; |
4664 | if (ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit ))) |
4665 | { |
4666 | n = stab_demangle_count (pp); |
4667 | if (strlen (*pp) < n) |
4668 | { |
4669 | stab_bad_demangle (orig); |
4670 | return FALSE0; |
4671 | } |
4672 | name = *pp; |
4673 | *pp += n; |
4674 | |
4675 | if (ptype != NULL((void*)0)) |
4676 | { |
4677 | class_type = stab_find_tagged_type (minfo->dhandle, |
4678 | minfo->info, |
4679 | name, (int) n, |
4680 | DEBUG_KIND_CLASS); |
4681 | if (class_type == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4682 | return FALSE0; |
4683 | } |
4684 | } |
4685 | else if (**pp == 'Q') |
4686 | { |
4687 | if (! stab_demangle_qualified (minfo, pp, |
4688 | (ptype == NULL((void*)0) |
4689 | ? (debug_type *) NULL((void*)0) |
4690 | : &class_type))) |
4691 | return FALSE0; |
4692 | } |
4693 | else |
4694 | { |
4695 | stab_bad_demangle (orig); |
4696 | return FALSE0; |
4697 | } |
4698 | |
4699 | if (memberp) |
4700 | { |
4701 | if (**pp == 'C') |
4702 | { |
4703 | constp = TRUE1; |
4704 | ++*pp; |
4705 | } |
4706 | else if (**pp == 'V') |
4707 | { |
4708 | volatilep = TRUE1; |
4709 | ++*pp; |
4710 | } |
4711 | if (**pp != 'F') |
4712 | { |
4713 | stab_bad_demangle (orig); |
4714 | return FALSE0; |
4715 | } |
4716 | ++*pp; |
4717 | if (! stab_demangle_args (minfo, pp, |
4718 | (ptype == NULL((void*)0) |
4719 | ? (debug_type **) NULL((void*)0) |
4720 | : &args), |
4721 | (ptype == NULL((void*)0) |
4722 | ? (bfd_boolean *) NULL((void*)0) |
4723 | : &varargs))) |
4724 | return FALSE0; |
4725 | } |
4726 | |
4727 | if (**pp != '_') |
4728 | { |
4729 | stab_bad_demangle (orig); |
4730 | return FALSE0; |
4731 | } |
4732 | ++*pp; |
4733 | |
4734 | if (! stab_demangle_type (minfo, pp, ptype)) |
4735 | return FALSE0; |
4736 | |
4737 | if (ptype != NULL((void*)0)) |
4738 | { |
4739 | if (! memberp) |
4740 | *ptype = debug_make_offset_type (minfo->dhandle, class_type, |
4741 | *ptype); |
4742 | else |
4743 | { |
4744 | /* FIXME: We have no way to record constp or |
4745 | volatilep. */ |
4746 | *ptype = debug_make_method_type (minfo->dhandle, *ptype, |
4747 | class_type, args, varargs); |
4748 | } |
4749 | } |
4750 | } |
4751 | break; |
4752 | |
4753 | case 'G': |
4754 | ++*pp; |
4755 | if (! stab_demangle_type (minfo, pp, ptype)) |
4756 | return FALSE0; |
4757 | break; |
4758 | |
4759 | case 'C': |
4760 | ++*pp; |
4761 | if (! stab_demangle_type (minfo, pp, ptype)) |
4762 | return FALSE0; |
4763 | if (ptype != NULL((void*)0)) |
4764 | *ptype = debug_make_const_type (minfo->dhandle, *ptype); |
4765 | break; |
4766 | |
4767 | case 'Q': |
4768 | { |
4769 | const char *hold; |
4770 | |
4771 | hold = *pp; |
4772 | if (! stab_demangle_qualified (minfo, pp, ptype)) |
4773 | return FALSE0; |
4774 | } |
4775 | break; |
4776 | |
4777 | default: |
4778 | if (! stab_demangle_fund_type (minfo, pp, ptype)) |
4779 | return FALSE0; |
4780 | break; |
4781 | } |
4782 | |
4783 | return TRUE1; |
4784 | } |
4785 | |
4786 | /* Demangle a fundamental type. If the ptype argument is not NULL, |
4787 | *ptype is set to the newly allocated type. */ |
4788 | |
4789 | static bfd_boolean |
4790 | stab_demangle_fund_type (struct stab_demangle_info *minfo, const char **pp, |
4791 | debug_type *ptype) |
4792 | { |
4793 | const char *orig; |
4794 | bfd_boolean constp, volatilep, unsignedp, signedp; |
4795 | bfd_boolean done; |
4796 | |
4797 | orig = *pp; |
4798 | |
4799 | constp = FALSE0; |
4800 | volatilep = FALSE0; |
4801 | unsignedp = FALSE0; |
4802 | signedp = FALSE0; |
4803 | |
4804 | done = FALSE0; |
4805 | while (! done) |
4806 | { |
4807 | switch (**pp) |
4808 | { |
4809 | case 'C': |
4810 | constp = TRUE1; |
4811 | ++*pp; |
4812 | break; |
4813 | |
4814 | case 'U': |
4815 | unsignedp = TRUE1; |
4816 | ++*pp; |
4817 | break; |
4818 | |
4819 | case 'S': |
4820 | signedp = TRUE1; |
4821 | ++*pp; |
4822 | break; |
4823 | |
4824 | case 'V': |
4825 | volatilep = TRUE1; |
4826 | ++*pp; |
4827 | break; |
4828 | |
4829 | default: |
4830 | done = TRUE1; |
4831 | break; |
4832 | } |
4833 | } |
4834 | |
4835 | switch (**pp) |
4836 | { |
4837 | case '\0': |
4838 | case '_': |
4839 | /* cplus_demangle permits this, but I don't know what it means. */ |
4840 | stab_bad_demangle (orig); |
4841 | break; |
4842 | |
4843 | case 'v': /* void */ |
4844 | if (ptype != NULL((void*)0)) |
4845 | { |
4846 | *ptype = debug_find_named_type (minfo->dhandle, "void"); |
4847 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4848 | *ptype = debug_make_void_type (minfo->dhandle); |
4849 | } |
4850 | ++*pp; |
4851 | break; |
4852 | |
4853 | case 'x': /* long long */ |
4854 | if (ptype != NULL((void*)0)) |
4855 | { |
4856 | *ptype = debug_find_named_type (minfo->dhandle, |
4857 | (unsignedp |
4858 | ? "long long unsigned int" |
4859 | : "long long int")); |
4860 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4861 | *ptype = debug_make_int_type (minfo->dhandle, 8, unsignedp); |
4862 | } |
4863 | ++*pp; |
4864 | break; |
4865 | |
4866 | case 'l': /* long */ |
4867 | if (ptype != NULL((void*)0)) |
4868 | { |
4869 | *ptype = debug_find_named_type (minfo->dhandle, |
4870 | (unsignedp |
4871 | ? "long unsigned int" |
4872 | : "long int")); |
4873 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4874 | *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp); |
4875 | } |
4876 | ++*pp; |
4877 | break; |
4878 | |
4879 | case 'i': /* int */ |
4880 | if (ptype != NULL((void*)0)) |
4881 | { |
4882 | *ptype = debug_find_named_type (minfo->dhandle, |
4883 | (unsignedp |
4884 | ? "unsigned int" |
4885 | : "int")); |
4886 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4887 | *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp); |
4888 | } |
4889 | ++*pp; |
4890 | break; |
4891 | |
4892 | case 's': /* short */ |
4893 | if (ptype != NULL((void*)0)) |
4894 | { |
4895 | *ptype = debug_find_named_type (minfo->dhandle, |
4896 | (unsignedp |
4897 | ? "short unsigned int" |
4898 | : "short int")); |
4899 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4900 | *ptype = debug_make_int_type (minfo->dhandle, 2, unsignedp); |
4901 | } |
4902 | ++*pp; |
4903 | break; |
4904 | |
4905 | case 'b': /* bool */ |
4906 | if (ptype != NULL((void*)0)) |
4907 | { |
4908 | *ptype = debug_find_named_type (minfo->dhandle, "bool"); |
4909 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4910 | *ptype = debug_make_bool_type (minfo->dhandle, 4); |
4911 | } |
4912 | ++*pp; |
4913 | break; |
4914 | |
4915 | case 'c': /* char */ |
4916 | if (ptype != NULL((void*)0)) |
4917 | { |
4918 | *ptype = debug_find_named_type (minfo->dhandle, |
4919 | (unsignedp |
4920 | ? "unsigned char" |
4921 | : (signedp |
4922 | ? "signed char" |
4923 | : "char"))); |
4924 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4925 | *ptype = debug_make_int_type (minfo->dhandle, 1, unsignedp); |
4926 | } |
4927 | ++*pp; |
4928 | break; |
4929 | |
4930 | case 'w': /* wchar_t */ |
4931 | if (ptype != NULL((void*)0)) |
4932 | { |
4933 | *ptype = debug_find_named_type (minfo->dhandle, "__wchar_t"); |
4934 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4935 | *ptype = debug_make_int_type (minfo->dhandle, 2, TRUE1); |
4936 | } |
4937 | ++*pp; |
4938 | break; |
4939 | |
4940 | case 'r': /* long double */ |
4941 | if (ptype != NULL((void*)0)) |
4942 | { |
4943 | *ptype = debug_find_named_type (minfo->dhandle, "long double"); |
4944 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4945 | *ptype = debug_make_float_type (minfo->dhandle, 8); |
4946 | } |
4947 | ++*pp; |
4948 | break; |
4949 | |
4950 | case 'd': /* double */ |
4951 | if (ptype != NULL((void*)0)) |
4952 | { |
4953 | *ptype = debug_find_named_type (minfo->dhandle, "double"); |
4954 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4955 | *ptype = debug_make_float_type (minfo->dhandle, 8); |
4956 | } |
4957 | ++*pp; |
4958 | break; |
4959 | |
4960 | case 'f': /* float */ |
4961 | if (ptype != NULL((void*)0)) |
4962 | { |
4963 | *ptype = debug_find_named_type (minfo->dhandle, "float"); |
4964 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4965 | *ptype = debug_make_float_type (minfo->dhandle, 4); |
4966 | } |
4967 | ++*pp; |
4968 | break; |
4969 | |
4970 | case 'G': |
4971 | ++*pp; |
4972 | if (! ISDIGIT (**pp)(_sch_istable[(**pp) & 0xff] & (unsigned short)(_sch_isdigit ))) |
4973 | { |
4974 | stab_bad_demangle (orig); |
4975 | return FALSE0; |
4976 | } |
4977 | /* Fall through. */ |
4978 | case '0': case '1': case '2': case '3': case '4': |
4979 | case '5': case '6': case '7': case '8': case '9': |
4980 | { |
4981 | const char *hold; |
4982 | |
4983 | if (! stab_demangle_class (minfo, pp, &hold)) |
4984 | return FALSE0; |
4985 | if (ptype != NULL((void*)0)) |
4986 | { |
4987 | char *name; |
4988 | |
4989 | name = savestring (hold, *pp - hold); |
4990 | *ptype = debug_find_named_type (minfo->dhandle, name); |
4991 | free (name); |
4992 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
4993 | { |
4994 | /* FIXME: It is probably incorrect to assume that |
4995 | undefined types are tagged types. */ |
4996 | *ptype = stab_find_tagged_type (minfo->dhandle, minfo->info, |
4997 | hold, *pp - hold, |
4998 | DEBUG_KIND_ILLEGAL); |
4999 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
5000 | return FALSE0; |
5001 | } |
5002 | } |
5003 | } |
5004 | break; |
5005 | |
5006 | case 't': |
5007 | { |
5008 | char *name; |
5009 | |
5010 | if (! stab_demangle_template (minfo, pp, |
5011 | ptype != NULL((void*)0) ? &name : NULL((void*)0))) |
5012 | return FALSE0; |
5013 | if (ptype != NULL((void*)0)) |
5014 | { |
5015 | *ptype = stab_find_tagged_type (minfo->dhandle, minfo->info, |
5016 | name, strlen (name), |
5017 | DEBUG_KIND_CLASS); |
5018 | free (name); |
5019 | if (*ptype == DEBUG_TYPE_NULL((debug_type) ((void*)0))) |
5020 | return FALSE0; |
5021 | } |
5022 | } |
5023 | break; |
5024 | |
5025 | default: |
5026 | stab_bad_demangle (orig); |
5027 | return FALSE0; |
5028 | } |
5029 | |
5030 | if (ptype != NULL((void*)0)) |
5031 | { |
5032 | if (constp) |
5033 | *ptype = debug_make_const_type (minfo->dhandle, *ptype); |
5034 | if (volatilep) |
5035 | *ptype = debug_make_volatile_type (minfo->dhandle, *ptype); |
5036 | } |
5037 | |
5038 | return TRUE1; |
5039 | } |
5040 | |
5041 | /* Remember a type string in a demangled string. */ |
5042 | |
5043 | static bfd_boolean |
5044 | stab_demangle_remember_type (struct stab_demangle_info *minfo, |
5045 | const char *p, int len) |
5046 | { |
5047 | if (minfo->typestring_count >= minfo->typestring_alloc) |
5048 | { |
5049 | minfo->typestring_alloc += 10; |
5050 | minfo->typestrings = ((struct stab_demangle_typestring *) |
5051 | xrealloc (minfo->typestrings, |
5052 | (minfo->typestring_alloc |
5053 | * sizeof *minfo->typestrings))); |
5054 | } |
5055 | |
5056 | minfo->typestrings[minfo->typestring_count].typestring = p; |
5057 | minfo->typestrings[minfo->typestring_count].len = (unsigned int) len; |
5058 | ++minfo->typestring_count; |
5059 | |
5060 | return TRUE1; |
5061 | } |
5062 | |
5063 | /* Demangle names encoded using the g++ V3 ABI. The newer versions of |
5064 | g++ which use this ABI do not encode ordinary method argument types |
5065 | in a mangled name; they simply output the argument types. However, |
5066 | for a static method, g++ simply outputs the return type and the |
5067 | physical name. So in that case we need to demangle the name here. |
5068 | Here PHYSNAME is the physical name of the function, and we set the |
5069 | variable pointed at by PVARARGS to indicate whether this function |
5070 | is varargs. This returns NULL, or a NULL terminated array of |
5071 | argument types. */ |
5072 | |
5073 | static debug_type * |
5074 | stab_demangle_v3_argtypes (void *dhandle, struct stab_handle *info, |
5075 | const char *physname, bfd_boolean *pvarargs) |
5076 | { |
5077 | struct demangle_component *dc; |
5078 | void *mem; |
5079 | debug_type *pargs; |
5080 | |
5081 | dc = cplus_demangle_v3_components (physname, DMGL_PARAMS(1 << 0) | DMGL_ANSI(1 << 1), &mem); |
5082 | if (dc == NULL((void*)0)) |
5083 | { |
5084 | stab_bad_demangle (physname); |
5085 | return NULL((void*)0); |
5086 | } |
5087 | |
5088 | /* We expect to see TYPED_NAME, and the right subtree describes the |
5089 | function type. */ |
5090 | if (dc->type != DEMANGLE_COMPONENT_TYPED_NAME |
5091 | || dc->u.s_binary.right->type != DEMANGLE_COMPONENT_FUNCTION_TYPE) |
5092 | { |
5093 | fprintf (stderr(&__sF[2]), _("Demangled name is not a function\n")("Demangled name is not a function\n")); |
5094 | free (mem); |
5095 | return NULL((void*)0); |
5096 | } |
5097 | |
5098 | pargs = stab_demangle_v3_arglist (dhandle, info, |
5099 | dc->u.s_binary.right->u.s_binary.right, |
5100 | pvarargs); |
5101 | |
5102 | free (mem); |
5103 | |
5104 | return pargs; |
5105 | } |
5106 | |
5107 | /* Demangle an argument list in a struct demangle_component tree. |
5108 | Returns a DEBUG_TYPE_NULL terminated array of argument types, and |
5109 | sets *PVARARGS to indicate whether this is a varargs function. */ |
5110 | |
5111 | static debug_type * |
5112 | stab_demangle_v3_arglist (void *dhandle, struct stab_handle *info, |
5113 | struct demangle_component *arglist, |
5114 | bfd_boolean *pvarargs) |
5115 | { |
5116 | struct demangle_component *dc; |
5117 | unsigned int alloc, count; |
5118 | debug_type *pargs; |
5119 | |
5120 | alloc = 10; |
5121 | pargs = (debug_type *) xmalloc (alloc * sizeof *pargs); |
5122 | *pvarargs = FALSE0; |
5123 | |
5124 | count = 0; |
5125 | |
5126 | for (dc = arglist; |
5127 | dc != NULL((void*)0); |
5128 | dc = dc->u.s_binary.right) |
5129 | { |
5130 | debug_type arg; |
5131 | bfd_boolean varargs; |
5132 | |
5133 | if (dc->type != DEMANGLE_COMPONENT_ARGLIST) |
5134 | { |
5135 | fprintf (stderr(&__sF[2]), _("Unexpected type in v3 arglist demangling\n")("Unexpected type in v3 arglist demangling\n")); |
5136 | free (pargs); |
5137 | return NULL((void*)0); |
5138 | } |
5139 | |
5140 | arg = stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.left, |
5141 | NULL((void*)0), &varargs); |
5142 | if (arg == NULL((void*)0)) |
5143 | { |
5144 | if (varargs) |
5145 | { |
5146 | *pvarargs = TRUE1; |
5147 | continue; |
5148 | } |
5149 | free (pargs); |
5150 | return NULL((void*)0); |
5151 | } |
5152 | |
5153 | if (count + 1 >= alloc) |
5154 | { |
5155 | alloc += 10; |
5156 | pargs = (debug_type *) xrealloc (pargs, alloc * sizeof *pargs); |
5157 | } |
5158 | |
5159 | pargs[count] = arg; |
5160 | ++count; |
5161 | } |
5162 | |
5163 | pargs[count] = DEBUG_TYPE_NULL((debug_type) ((void*)0)); |
5164 | |
5165 | return pargs; |
5166 | } |
5167 | |
5168 | /* Convert a struct demangle_component tree describing an argument |
5169 | type into a debug_type. */ |
5170 | |
5171 | static debug_type |
5172 | stab_demangle_v3_arg (void *dhandle, struct stab_handle *info, |
5173 | struct demangle_component *dc, debug_type context, |
5174 | bfd_boolean *pvarargs) |
5175 | { |
5176 | debug_type dt; |
5177 | |
5178 | if (pvarargs != NULL((void*)0)) |
5179 | *pvarargs = FALSE0; |
5180 | |
5181 | switch (dc->type) |
5182 | { |
5183 | /* FIXME: These are demangle component types which we probably |
5184 | need to handle one way or another. */ |
5185 | case DEMANGLE_COMPONENT_LOCAL_NAME: |
5186 | case DEMANGLE_COMPONENT_TYPED_NAME: |
5187 | case DEMANGLE_COMPONENT_TEMPLATE_PARAM: |
5188 | case DEMANGLE_COMPONENT_CTOR: |
5189 | case DEMANGLE_COMPONENT_DTOR: |
5190 | case DEMANGLE_COMPONENT_JAVA_CLASS: |
5191 | case DEMANGLE_COMPONENT_RESTRICT_THIS: |
5192 | case DEMANGLE_COMPONENT_VOLATILE_THIS: |
5193 | case DEMANGLE_COMPONENT_CONST_THIS: |
5194 | case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: |
5195 | case DEMANGLE_COMPONENT_COMPLEX: |
5196 | case DEMANGLE_COMPONENT_IMAGINARY: |
5197 | case DEMANGLE_COMPONENT_VENDOR_TYPE: |
5198 | case DEMANGLE_COMPONENT_ARRAY_TYPE: |
5199 | case DEMANGLE_COMPONENT_PTRMEM_TYPE: |
5200 | case DEMANGLE_COMPONENT_ARGLIST: |
5201 | default: |
5202 | fprintf (stderr(&__sF[2]), _("Unrecognized demangle component %d\n")("Unrecognized demangle component %d\n"), |
5203 | (int) dc->type); |
5204 | return NULL((void*)0); |
5205 | |
5206 | case DEMANGLE_COMPONENT_NAME: |
5207 | if (context != NULL((void*)0)) |
5208 | { |
5209 | const debug_field *fields; |
5210 | |
5211 | fields = debug_get_fields (dhandle, context); |
5212 | if (fields != NULL((void*)0)) |
5213 | { |
5214 | /* Try to find this type by looking through the context |
5215 | class. */ |
5216 | for (; *fields != DEBUG_FIELD_NULL((debug_field) ((void*)0)); fields++) |
5217 | { |
5218 | debug_type ft; |
5219 | const char *dn; |
5220 | |
5221 | ft = debug_get_field_type (dhandle, *fields); |
5222 | if (ft == NULL((void*)0)) |
5223 | return NULL((void*)0); |
5224 | dn = debug_get_type_name (dhandle, ft); |
5225 | if (dn != NULL((void*)0) |
5226 | && (int) strlen (dn) == dc->u.s_name.len |
5227 | && strncmp (dn, dc->u.s_name.s, dc->u.s_name.len) == 0) |
5228 | return ft; |
5229 | } |
5230 | } |
5231 | } |
5232 | return stab_find_tagged_type (dhandle, info, dc->u.s_name.s, |
5233 | dc->u.s_name.len, DEBUG_KIND_ILLEGAL); |
5234 | |
5235 | case DEMANGLE_COMPONENT_QUAL_NAME: |
5236 | context = stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.left, |
5237 | context, NULL((void*)0)); |
5238 | if (context == NULL((void*)0)) |
5239 | return NULL((void*)0); |
5240 | return stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.right, |
5241 | context, NULL((void*)0)); |
5242 | |
5243 | case DEMANGLE_COMPONENT_TEMPLATE: |
5244 | { |
5245 | char *p; |
5246 | size_t alc; |
5247 | |
5248 | /* We print this component to get a class name which we can |
5249 | use. FIXME: This probably won't work if the template uses |
5250 | template parameters which refer to an outer template. */ |
5251 | p = cplus_demangle_print (DMGL_PARAMS(1 << 0) | DMGL_ANSI(1 << 1), dc, 20, &alc); |
5252 | if (p == NULL((void*)0)) |
5253 | { |
5254 | fprintf (stderr(&__sF[2]), _("Failed to print demangled template\n")("Failed to print demangled template\n")); |
5255 | return NULL((void*)0); |
5256 | } |
5257 | dt = stab_find_tagged_type (dhandle, info, p, strlen (p), |
5258 | DEBUG_KIND_CLASS); |
5259 | free (p); |
5260 | return dt; |
5261 | } |
5262 | |
5263 | case DEMANGLE_COMPONENT_SUB_STD: |
5264 | return stab_find_tagged_type (dhandle, info, dc->u.s_string.string, |
5265 | dc->u.s_string.len, DEBUG_KIND_ILLEGAL); |
5266 | |
5267 | case DEMANGLE_COMPONENT_RESTRICT: |
5268 | case DEMANGLE_COMPONENT_VOLATILE: |
5269 | case DEMANGLE_COMPONENT_CONST: |
5270 | case DEMANGLE_COMPONENT_POINTER: |
5271 | case DEMANGLE_COMPONENT_REFERENCE: |
5272 | dt = stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.left, NULL((void*)0), |
5273 | NULL((void*)0)); |
5274 | if (dt == NULL((void*)0)) |
5275 | return NULL((void*)0); |
5276 | |
5277 | switch (dc->type) |
5278 | { |
5279 | default: |
5280 | abort (); |
5281 | case DEMANGLE_COMPONENT_RESTRICT: |
5282 | /* FIXME: We have no way to represent restrict. */ |
5283 | return dt; |
5284 | case DEMANGLE_COMPONENT_VOLATILE: |
5285 | return debug_make_volatile_type (dhandle, dt); |
5286 | case DEMANGLE_COMPONENT_CONST: |
5287 | return debug_make_const_type (dhandle, dt); |
5288 | case DEMANGLE_COMPONENT_POINTER: |
5289 | return debug_make_pointer_type (dhandle, dt); |
5290 | case DEMANGLE_COMPONENT_REFERENCE: |
5291 | return debug_make_reference_type (dhandle, dt); |
5292 | } |
5293 | |
5294 | case DEMANGLE_COMPONENT_FUNCTION_TYPE: |
5295 | { |
5296 | debug_type *pargs; |
5297 | bfd_boolean varargs; |
5298 | |
5299 | if (dc->u.s_binary.left == NULL((void*)0)) |
5300 | { |
5301 | /* In this case the return type is actually unknown. |
5302 | However, I'm not sure this will ever arise in practice; |
5303 | normally an unknown return type would only appear at |
5304 | the top level, which is handled above. */ |
5305 | dt = debug_make_void_type (dhandle); |
5306 | } |
5307 | else |
5308 | dt = stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.left, NULL((void*)0), |
5309 | NULL((void*)0)); |
5310 | if (dt == NULL((void*)0)) |
5311 | return NULL((void*)0); |
5312 | |
5313 | pargs = stab_demangle_v3_arglist (dhandle, info, |
5314 | dc->u.s_binary.right, |
5315 | &varargs); |
5316 | if (pargs == NULL((void*)0)) |
5317 | return NULL((void*)0); |
5318 | |
5319 | return debug_make_function_type (dhandle, dt, pargs, varargs); |
5320 | } |
5321 | |
5322 | case DEMANGLE_COMPONENT_BUILTIN_TYPE: |
5323 | { |
5324 | char *p; |
5325 | size_t alc; |
5326 | debug_type ret; |
5327 | |
5328 | /* We print this component in order to find out the type name. |
5329 | FIXME: Should we instead expose the |
5330 | demangle_builtin_type_info structure? */ |
5331 | p = cplus_demangle_print (DMGL_PARAMS(1 << 0) | DMGL_ANSI(1 << 1), dc, 20, &alc); |
5332 | if (p == NULL((void*)0)) |
5333 | { |
5334 | fprintf (stderr(&__sF[2]), _("Couldn't get demangled builtin type\n")("Couldn't get demangled builtin type\n")); |
5335 | return NULL((void*)0); |
5336 | } |
5337 | |
5338 | /* The mangling is based on the type, but does not itself |
5339 | indicate what the sizes are. So we have to guess. */ |
5340 | if (strcmp (p, "signed char") == 0) |
5341 | ret = debug_make_int_type (dhandle, 1, FALSE0); |
5342 | else if (strcmp (p, "bool") == 0) |
5343 | ret = debug_make_bool_type (dhandle, 1); |
5344 | else if (strcmp (p, "char") == 0) |
5345 | ret = debug_make_int_type (dhandle, 1, FALSE0); |
5346 | else if (strcmp (p, "double") == 0) |
5347 | ret = debug_make_float_type (dhandle, 8); |
5348 | else if (strcmp (p, "long double") == 0) |
5349 | ret = debug_make_float_type (dhandle, 8); |
5350 | else if (strcmp (p, "float") == 0) |
5351 | ret = debug_make_float_type (dhandle, 4); |
5352 | else if (strcmp (p, "__float128") == 0) |
5353 | ret = debug_make_float_type (dhandle, 16); |
5354 | else if (strcmp (p, "unsigned char") == 0) |
5355 | ret = debug_make_int_type (dhandle, 1, TRUE1); |
5356 | else if (strcmp (p, "int") == 0) |
5357 | ret = debug_make_int_type (dhandle, 4, FALSE0); |
5358 | else if (strcmp (p, "unsigned int") == 0) |
5359 | ret = debug_make_int_type (dhandle, 4, TRUE1); |
5360 | else if (strcmp (p, "long") == 0) |
5361 | ret = debug_make_int_type (dhandle, 4, FALSE0); |
5362 | else if (strcmp (p, "unsigned long") == 0) |
5363 | ret = debug_make_int_type (dhandle, 4, TRUE1); |
5364 | else if (strcmp (p, "__int128") == 0) |
5365 | ret = debug_make_int_type (dhandle, 16, FALSE0); |
5366 | else if (strcmp (p, "unsigned __int128") == 0) |
5367 | ret = debug_make_int_type (dhandle, 16, TRUE1); |
5368 | else if (strcmp (p, "short") == 0) |
5369 | ret = debug_make_int_type (dhandle, 2, FALSE0); |
5370 | else if (strcmp (p, "unsigned short") == 0) |
5371 | ret = debug_make_int_type (dhandle, 2, TRUE1); |
5372 | else if (strcmp (p, "void") == 0) |
5373 | ret = debug_make_void_type (dhandle); |
5374 | else if (strcmp (p, "wchar_t") == 0) |
5375 | ret = debug_make_int_type (dhandle, 4, TRUE1); |
5376 | else if (strcmp (p, "long long") == 0) |
5377 | ret = debug_make_int_type (dhandle, 8, FALSE0); |
5378 | else if (strcmp (p, "unsigned long long") == 0) |
5379 | ret = debug_make_int_type (dhandle, 8, TRUE1); |
5380 | else if (strcmp (p, "...") == 0) |
5381 | { |
5382 | if (pvarargs == NULL((void*)0)) |
5383 | fprintf (stderr(&__sF[2]), _("Unexpected demangled varargs\n")("Unexpected demangled varargs\n")); |
5384 | else |
5385 | *pvarargs = TRUE1; |
5386 | ret = NULL((void*)0); |
5387 | } |
5388 | else |
5389 | { |
5390 | fprintf (stderr(&__sF[2]), _("Unrecognized demangled builtin type\n")("Unrecognized demangled builtin type\n")); |
5391 | ret = NULL((void*)0); |
5392 | } |
5393 | |
5394 | free (p); |
5395 | |
5396 | return ret; |
5397 | } |
5398 | } |
5399 | } |