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[deliverable/binutils-gdb.git] / binutils / stabs.c
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252b5132 1/* stabs.c -- Parse stabs debugging information
12d08d70 2 Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
8855cbca 3 Free Software Foundation, Inc.
252b5132
RH		 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
b43b5d5f
NC		 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
21 02110-1301, USA. */
252b5132
RH		 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>
252b5132
RH		 29
30#include "bfd.h"
31#include "bucomm.h"
32#include "libiberty.h"
3882b010 33#include "safe-ctype.h"
252b5132
RH		 34#include "demangle.h"
35#include "debug.h"
36#include "budbg.h"
8855cbca 37#include "filenames.h"
252b5132
RH		 38#include "aout/aout64.h"
39#include "aout/stab_gnu.h"
40
252b5132
RH		 41/* The number of predefined XCOFF types. */
42
43#define XCOFF_TYPE_COUNT 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
48struct stab_handle
49{
50 /* The BFD. */
51 bfd *abfd;
b34976b6
AM		 52 /* TRUE if this is stabs in sections. */
53 bfd_boolean sections;
252b5132
RH		 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. */
b34976b6 73 bfd_boolean n_opt_found;
252b5132
RH		 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. */
b34976b6 81 bfd_boolean within_function;
252b5132
RH		 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_COUNT];
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. */
b34976b6 100 bfd_boolean self_crossref;
252b5132
RH		 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
106struct 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
123struct 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)
129 debug_type types[STAB_TYPES_SLOTS];
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
135struct 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
2da42df6
AJ		 150static char *savestring (const char *, int);
151static bfd_vma parse_number (const char **, bfd_boolean *);
152static void bad_stab (const char *);
153static void warn_stab (const char *, const char *);
b34976b6 154static bfd_boolean parse_stab_string
2da42df6 155 (void *, struct stab_handle *, int, int, bfd_vma, const char *);
252b5132 156static debug_type parse_stab_type
2da42df6
AJ		 157 (void *, struct stab_handle *, const char *, const char **, debug_type **);
158static bfd_boolean parse_stab_type_number (const char **, int *);
252b5132 159static debug_type parse_stab_range_type
2da42df6
AJ		 160 (void *, struct stab_handle *, const char *, const char **, const int *);
161static debug_type parse_stab_sun_builtin_type (void *, const char **);
162static debug_type parse_stab_sun_floating_type (void *, const char **);
163static debug_type parse_stab_enum_type (void *, const char **);
252b5132 164static debug_type parse_stab_struct_type
2da42df6
AJ		 165 (void *, struct stab_handle *, const char *, const char **,
166 bfd_boolean, const int *);
b34976b6 167static bfd_boolean parse_stab_baseclasses
2da42df6 168 (void *, struct stab_handle *, const char **, debug_baseclass **);
b34976b6 169static bfd_boolean parse_stab_struct_fields
2da42df6 170 (void *, struct stab_handle *, const char **, debug_field **, bfd_boolean *);
b34976b6 171static bfd_boolean parse_stab_cpp_abbrev
2da42df6 172 (void *, struct stab_handle *, const char **, debug_field *);
b34976b6 173static bfd_boolean parse_stab_one_struct_field
2da42df6
AJ		 174 (void *, struct stab_handle *, const char **, const char *,
175 debug_field *, bfd_boolean *);
b34976b6 176static bfd_boolean parse_stab_members
2da42df6
AJ		 177 (void *, struct stab_handle *, const char *, const char **, const int *,
178 debug_method **);
252b5132 179static debug_type parse_stab_argtypes
2da42df6
AJ		 180 (void *, struct stab_handle *, debug_type, const char *, const char *,
181 debug_type, const char *, bfd_boolean, bfd_boolean, const char **);
b34976b6 182static bfd_boolean parse_stab_tilde_field
2da42df6
AJ		 183 (void *, struct stab_handle *, const char **, const int *, debug_type *,
184 bfd_boolean *);
252b5132 185static debug_type parse_stab_array_type
2da42df6
AJ		 186 (void *, struct stab_handle *, const char **, bfd_boolean);
187static void push_bincl (struct stab_handle *, const char *, bfd_vma);
188static const char *pop_bincl (struct stab_handle *);
189static bfd_boolean find_excl (struct stab_handle *, const char *, bfd_vma);
b34976b6 190static bfd_boolean stab_record_variable
2da42df6
AJ		 191 (void *, struct stab_handle *, const char *, debug_type,
192 enum debug_var_kind, bfd_vma);
193static bfd_boolean stab_emit_pending_vars (void *, struct stab_handle *);
194static debug_type *stab_find_slot (struct stab_handle *, const int *);
195static debug_type stab_find_type (void *, struct stab_handle *, const int *);
b34976b6 196static bfd_boolean stab_record_type
2da42df6 197 (void *, struct stab_handle *, const int *, debug_type);
252b5132 198static debug_type stab_xcoff_builtin_type
2da42df6 199 (void *, struct stab_handle *, int);
252b5132 200static debug_type stab_find_tagged_type
2da42df6 201 (void *, struct stab_handle *, const char *, int, enum debug_type_kind);
252b5132 202static debug_type *stab_demangle_argtypes
2da42df6 203 (void *, struct stab_handle *, const char *, bfd_boolean *, unsigned int);
041821e6
ILT		 204static debug_type *stab_demangle_v3_argtypes
205 (void *, struct stab_handle *, const char *, bfd_boolean *);
2b4c4cc4
ILT		 206static debug_type *stab_demangle_v3_arglist
207 (void *, struct stab_handle *, struct demangle_component *, bfd_boolean *);
041821e6
ILT		 208static debug_type stab_demangle_v3_arg
209 (void *, struct stab_handle *, struct demangle_component *, debug_type,
210 bfd_boolean *);
252b5132
RH		 211
212/* Save a string in memory. */
213
214static char *
2da42df6 215savestring (const char *start, int len)
252b5132
RH		 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
227static bfd_vma
2da42df6 228parse_number (const char **pp, bfd_boolean *poverflow)
252b5132
RH		 229{
230 unsigned long ul;
231 const char *orig;
232
233 if (poverflow != NULL)
b34976b6 234 *poverflow = FALSE;
252b5132
RH		 235
236 orig = *pp;
237
238 errno = 0;
239 ul = strtoul (*pp, (char **) pp, 0);
240 if (ul + 1 != 0 || 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. */
252b5132
RH		 252 if (sizeof (bfd_vma) > sizeof (unsigned long))
253 {
254 const char *p;
b34976b6 255 bfd_boolean neg;
252b5132
RH		 256 int base;
257 bfd_vma over, lastdig;
b34976b6 258 bfd_boolean overflow;
252b5132
RH		 259 bfd_vma v;
260
261 /* Our own version of strtoul, for a bfd_vma. */
252b5132
RH		 262 p = orig;
263
b34976b6 264 neg = FALSE;
252b5132
RH		 265 if (*p == '+')
266 ++p;
267 else if (*p == '-')
268 {
b34976b6 269 neg = TRUE;
252b5132
RH		 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
b34976b6 291 overflow = FALSE;
252b5132
RH		 292 v = 0;
293 while (1)
294 {
295 int d;
296
297 d = *p++;
3882b010 298 if (ISDIGIT (d))
252b5132 299 d -= '0';
3882b010 300 else if (ISUPPER (d))
252b5132 301 d -= 'A';
3882b010 302 else if (ISLOWER (d))
252b5132
RH		 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 {
b34976b6 312 overflow = TRUE;
252b5132
RH		 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. */
252b5132 327 if (poverflow != NULL)
b34976b6 328 *poverflow = TRUE;
252b5132
RH		 329 else
330 warn_stab (orig, _("numeric overflow"));
331
332 return 0;
333}
334
335/* Give an error for a bad stab string. */
336
337static void
2da42df6 338bad_stab (const char *p)
252b5132
RH		 339{
340 fprintf (stderr, _("Bad stab: %s\n"), p);
341}
342
343/* Warn about something in a stab string. */
344
345static void
2da42df6 346warn_stab (const char *p, const char *err)
252b5132
RH		 347{
348 fprintf (stderr, _("Warning: %s: %s\n"), err, p);
349}
350
351/* Create a handle to parse stabs symbols with. */
352
2da42df6
AJ		 353void *
354start_stab (void *dhandle ATTRIBUTE_UNUSED, bfd *abfd, bfd_boolean sections,
355 asymbol **syms, long symcount)
252b5132
RH		 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;
368 ret->function_end = (bfd_vma) -1;
2da42df6 369 return (void *) ret;
252b5132
RH		 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
b34976b6 375bfd_boolean
2da42df6 376finish_stab (void *dhandle, void *handle)
252b5132
RH		 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))
b34976b6
AM		 385 return FALSE;
386 info->within_function = FALSE;
252b5132
RH		 387 info->function_end = (bfd_vma) -1;
388 }
389
390 for (st = info->tags; st != NULL; 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)
b34976b6 399 return FALSE;
252b5132
RH		 400 }
401
b34976b6 402 return TRUE;
252b5132
RH		 403}
404
405/* Handle a single stabs symbol. */
406
b34976b6 407bfd_boolean
2da42df6
AJ		 408parse_stab (void *dhandle, void *handle, int type, int desc, bfd_vma value,
409 const char *string)
252b5132
RH		 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
418 && (type != N_SO || *string == '\0' || value != info->so_value))
419 {
420 if (! debug_set_filename (dhandle, info->so_string))
b34976b6 421 return FALSE;
252b5132
RH		 422 info->main_filename = info->so_string;
423
424 info->gcc_compiled = 0;
b34976b6 425 info->n_opt_found = FALSE;
252b5132
RH		 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;
439
440 info->so_string = NULL;
441
442 /* Now process whatever type we just got. */
443 }
444
445 switch (type)
446 {
447 case N_FN:
448 case N_FN_SEQ:
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, _("N_LBRAC not within function\n"));
b34976b6 459 return FALSE;
252b5132
RH		 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)))
b34976b6 467 return FALSE;
252b5132
RH		 468
469 /* Emit any pending variable definitions. */
470 if (! stab_emit_pending_vars (dhandle, info))
b34976b6 471 return FALSE;
252b5132
RH		 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))
b34976b6 485 return FALSE;
252b5132
RH		 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)))
b34976b6 492 return FALSE;
252b5132
RH		 493
494 --info->block_depth;
495 if (info->block_depth < 0)
496 {
497 fprintf (stderr, _("Too many N_RBRACs\n"));
b34976b6 498 return FALSE;
252b5132
RH		 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))
b34976b6
AM		 515 return FALSE;
516 info->within_function = FALSE;
252b5132
RH		 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')
b34976b6 523 return TRUE;
252b5132
RH		 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)
530 info->so_string = xstrdup (string);
531 else
532 {
533 char *f;
534
535 f = info->so_string;
536
9f66665a 537 if (IS_ABSOLUTE_PATH (string))
252b5132
RH		 538 info->so_string = xstrdup (string);
539 else
540 info->so_string = concat (info->so_string, string,
541 (const char *) NULL);
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))
b34976b6 552 return FALSE;
252b5132
RH		 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))
b34976b6 559 return FALSE;
252b5132
RH		 560 break;
561
562 case N_EINCL:
563 /* End an N_BINCL include. */
564 if (! debug_start_source (dhandle, pop_bincl (info)))
b34976b6 565 return FALSE;
252b5132
RH		 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))
b34976b6 572 return FALSE;
252b5132
RH		 573 break;
574
575 case N_SLINE:
576 if (! debug_record_line (dhandle, desc,
6de15b9e
NC		 577 value + (info->within_function
578 ? info->function_start_offset : 0)))
b34976b6 579 return FALSE;
252b5132
RH		 580 break;
581
582 case N_BCOMM:
583 if (! debug_start_common_block (dhandle, string))
b34976b6 584 return FALSE;
252b5132
RH		 585 break;
586
587 case N_ECOMM:
588 if (! debug_end_common_block (dhandle, string))
b34976b6 589 return FALSE;
252b5132
RH		 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))
b34976b6
AM		 603 return FALSE;
604 info->within_function = FALSE;
252b5132
RH		 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
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))
b34976b6 644 return FALSE;
252b5132
RH		 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;
b34976b6 651 info->within_function = TRUE;
252b5132
RH		 652 }
653
654 if (! parse_stab_string (dhandle, info, type, desc, value, string))
b34976b6 655 return FALSE;
252b5132
RH		 656 }
657 break;
658
659 case N_OPT:
660 if (string != NULL && strcmp (string, "gcc2_compiled.") == 0)
661 info->gcc_compiled = 2;
662 else if (string != NULL && strcmp (string, "gcc_compiled.") == 0)
663 info->gcc_compiled = 1;
664 else
b34976b6 665 info->n_opt_found = TRUE;
252b5132
RH		 666 break;
667
668 case N_OBJ:
669 case N_ENDM:
670 case N_MAIN:
8855cbca 671 case N_WARNING:
252b5132
RH		 672 break;
673 }
674
b34976b6 675 return TRUE;
252b5132
RH		 676}
677
678/* Parse the stabs string. */
679
b34976b6 680static bfd_boolean
2da42df6
AJ		 681parse_stab_string (void *dhandle, struct stab_handle *info, int stabtype,
682 int desc, bfd_vma value, const char *string)
252b5132
RH		 683{
684 const char *p;
685 char *name;
686 int type;
687 debug_type dtype;
b34976b6
AM		 688 bfd_boolean synonym;
689 bfd_boolean self_crossref;
252b5132
RH		 690 unsigned int lineno;
691 debug_type *slot;
692
693 p = strchr (string, ':');
694 if (p == NULL)
b34976b6 695 return TRUE;
252b5132
RH		 696
697 while (p[1] == ':')
698 {
699 p += 2;
700 p = strchr (p, ':');
701 if (p == NULL)
702 {
703 bad_stab (string);
b34976b6 704 return FALSE;
252b5132
RH		 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;
713 else
714 lineno = 0;
715
716 /* FIXME: Sometimes the special C++ names start with '.'. */
717 name = NULL;
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"));
739 break;
740 }
741 }
742
743 if (name == NULL)
744 {
745 if (p == string || (string[0] == ' ' && p == string + 1))
746 name = NULL;
747 else
748 name = savestring (string, p - string);
749 }
750
751 ++p;
3882b010 752 if (ISDIGIT (*p) || *p == '(' || *p == '-')
252b5132
RH		 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);
b34976b6 769 return FALSE;
252b5132
RH		 770 }
771 ++p;
772 switch (*p++)
773 {
774 case 'r':
775 /* Floating point constant. */
776 if (! debug_record_float_const (dhandle, name, atof (p)))
b34976b6 777 return FALSE;
252b5132
RH		 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)))
b34976b6 788 return FALSE;
252b5132
RH		 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,
796 &p, (debug_type **) NULL);
797 if (dtype == DEBUG_TYPE_NULL)
b34976b6 798 return FALSE;
252b5132
RH		 799 if (*p != ',')
800 {
801 bad_stab (string);
b34976b6 802 return FALSE;
252b5132
RH		 803 }
804 if (! debug_record_typed_const (dhandle, name, dtype, atoi (p)))
b34976b6 805 return FALSE;
252b5132
RH		 806 break;
807 default:
808 bad_stab (string);
b34976b6 809 return FALSE;
252b5132
RH		 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,
817 &p, (debug_type **) NULL);
818 if (dtype == DEBUG_TYPE_NULL)
b34976b6 819 return FALSE;
252b5132 820 if (! debug_record_label (dhandle, name, dtype, value))
b34976b6 821 return FALSE;
252b5132
RH		 822 break;
823
824 case 'f':
825 case 'F':
826 /* A function definition. */
827 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p,
828 (debug_type **) NULL);
829 if (dtype == DEBUG_TYPE_NULL)
b34976b6 830 return FALSE;
252b5132 831 if (! debug_record_function (dhandle, name, dtype, type == 'F', value))
b34976b6 832 return FALSE;
252b5132
RH		 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, &p,
842 (debug_type **) NULL)
843 == DEBUG_TYPE_NULL)
b34976b6 844 return FALSE;
252b5132
RH		 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, &p,
858 (debug_type **) NULL);
859 if (dtype == DEBUG_TYPE_NULL)
b34976b6 860 return FALSE;
252b5132
RH		 861 leading = bfd_get_symbol_leading_char (info->abfd);
862 for (c = info->symcount, ps = info->syms; c > 0; --c, ++ps)
863 {
864 const char *n;
865
866 n = bfd_asymbol_name (*ps);
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);
874 if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_GLOBAL,
875 value))
b34976b6 876 return FALSE;
252b5132
RH		 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, &p,
886 (debug_type **) NULL);
887 if (dtype == DEBUG_TYPE_NULL)
b34976b6 888 return FALSE;
252b5132
RH		 889 if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL,
890 value))
b34976b6 891 return FALSE;
252b5132
RH		 892 break;
893
894 case 'p':
895 /* A function parameter. */
896 if (*p != 'F')
897 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p,
898 (debug_type **) NULL);
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, &p,
906 (debug_type **) NULL);
907 if (dtype != DEBUG_TYPE_NULL)
908 {
909 debug_type ftype;
910
911 ftype = debug_make_function_type (dhandle, dtype,
b34976b6 912 (debug_type *) NULL, FALSE);
252b5132
RH		 913 dtype = debug_make_pointer_type (dhandle, ftype);
914 }
915 }
916 if (dtype == DEBUG_TYPE_NULL)
b34976b6 917 return FALSE;
252b5132
RH		 918 if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_STACK,
919 value))
b34976b6 920 return FALSE;
252b5132
RH		 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. */
252b5132
RH		 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, &p,
936 (debug_type **) NULL)
937 == DEBUG_TYPE_NULL)
b34976b6 938 return FALSE;
252b5132
RH		 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, &p,
946 (debug_type **) NULL);
947 if (dtype == DEBUG_TYPE_NULL)
b34976b6 948 return FALSE;
252b5132
RH		 949 if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REG,
950 value))
b34976b6 951 return FALSE;
252b5132
RH		 952 break;
953
954 case 'r':
955 /* Register variable (either global or local). */
956 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p,
957 (debug_type **) NULL);
958 if (dtype == DEBUG_TYPE_NULL)
b34976b6 959 return FALSE;
252b5132
RH		 960 if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_REGISTER,
961 value))
b34976b6 962 return FALSE;
252b5132
RH		 963
964 /* FIXME: At this point gdb checks to combine pairs of 'p' and
965 'r' stabs into a single 'P' stab. */
252b5132
RH		 966 break;
967
968 case 'S':
7eb5191a 969 /* Static symbol at top level of file. */
252b5132
RH		 970 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p,
971 (debug_type **) NULL);
972 if (dtype == DEBUG_TYPE_NULL)
b34976b6 973 return FALSE;
252b5132
RH		 974 if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_STATIC,
975 value))
b34976b6 976 return FALSE;
252b5132
RH		 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)
b34976b6 983 return FALSE;
252b5132
RH		 984 if (name == NULL)
985 {
986 /* A nameless type. Nothing to do. */
b34976b6 987 return TRUE;
252b5132
RH		 988 }
989
990 dtype = debug_name_type (dhandle, name, dtype);
991 if (dtype == DEBUG_TYPE_NULL)
b34976b6 992 return FALSE;
252b5132
RH		 993
994 if (slot != NULL)
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 {
b34976b6
AM		 1004 synonym = FALSE;
1005 /* FIXME: gdb sets synonym to TRUE if the current language
252b5132
RH		 1006 is C++. */
1007 }
1008 else
1009 {
b34976b6 1010 synonym = TRUE;
252b5132
RH		 1011 ++p;
1012 }
1013
1014 dtype = parse_stab_type (dhandle, info, name, &p, &slot);
1015 if (dtype == DEBUG_TYPE_NULL)
b34976b6 1016 return FALSE;
252b5132 1017 if (name == NULL)
b34976b6 1018 return TRUE;
252b5132
RH		 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)
b34976b6 1027 return FALSE;
252b5132
RH		 1028 if (slot != NULL)
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; 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)
b34976b6 1054 return FALSE;
252b5132
RH		 1055
1056 if (slot != NULL)
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, &p,
1065 (debug_type **) NULL);
1066 if (dtype == DEBUG_TYPE_NULL)
b34976b6 1067 return FALSE;
252b5132
RH		 1068 /* FIXME: gdb checks os9k_stabs here. */
1069 if (! stab_record_variable (dhandle, info, name, dtype,
1070 DEBUG_LOCAL_STATIC, value))
b34976b6 1071 return FALSE;
252b5132
RH		 1072 break;
1073
1074 case 'v':
1075 /* Reference parameter. */
1076 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p,
1077 (debug_type **) NULL);
1078 if (dtype == DEBUG_TYPE_NULL)
b34976b6 1079 return FALSE;
252b5132
RH		 1080 if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REFERENCE,
1081 value))
b34976b6 1082 return FALSE;
252b5132
RH		 1083 break;
1084
1085 case 'a':
1086 /* Reference parameter which is in a register. */
1087 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p,
1088 (debug_type **) NULL);
1089 if (dtype == DEBUG_TYPE_NULL)
b34976b6 1090 return FALSE;
252b5132
RH		 1091 if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REF_REG,
1092 value))
b34976b6 1093 return FALSE;
252b5132
RH		 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, &p,
1102 (debug_type **) NULL);
1103 if (dtype == DEBUG_TYPE_NULL)
b34976b6 1104 return FALSE;
252b5132
RH		 1105 if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL,
1106 value))
b34976b6 1107 return FALSE;
252b5132
RH		 1108 break;
1109
1110 default:
1111 bad_stab (string);
b34976b6 1112 return FALSE;
252b5132
RH		 1113 }
1114
1115 /* FIXME: gdb converts structure values to structure pointers in a
1116 couple of cases, depending upon the target. */
1117
b34976b6 1118 return TRUE;
252b5132
RH		 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
1126static debug_type
2da42df6 1127parse_stab_type (void *dhandle, struct stab_handle *info, const char *typename, const char **pp, debug_type **slotp)
252b5132
RH		 1128{
1129 const char *orig;
1130 int typenums[2];
1131 int size;
b34976b6 1132 bfd_boolean stringp;
252b5132
RH		 1133 int descriptor;
1134 debug_type dtype;
1135
1136 if (slotp != NULL)
1137 *slotp = NULL;
1138
1139 orig = *pp;
1140
1141 size = -1;
b34976b6 1142 stringp = FALSE;
252b5132 1143
b34976b6 1144 info->self_crossref = FALSE;
252b5132
RH		 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". */
3882b010 1149 if (! ISDIGIT (**pp) && **pp != '(' && **pp != '-')
252b5132
RH		 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;
1159
1160 if (**pp != '=')
7eb5191a
NC		 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);
252b5132
RH		 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 && 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
3882b010 1190 if (ISDIGIT (*p) || *p == '(' || *p == '-')
7eb5191a
NC		 1191 /* Member type. */
1192 break;
252b5132
RH		 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;
1203 }
1204 }
1205 *pp = p + 1;
1206
1207 switch (*attr)
1208 {
1209 case 's':
1210 size = atoi (attr + 1);
944e5c61 1211 size /= 8; /* Size is in bits. We store it in bytes. */
252b5132
RH		 1212 if (size <= 0)
1213 size = -1;
1214 break;
1215
1216 case 'S':
b34976b6 1217 stringp = TRUE;
252b5132
RH		 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. */
252b5132
RH		 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"));
1254 code = DEBUG_KIND_STRUCT;
1255 break;
1256 }
1257 ++*pp;
1258
1259 q1 = strchr (*pp, '<');
1260 p = strchr (*pp, ':');
1261 if (p == NULL)
1262 {
1263 bad_stab (orig);
1264 return DEBUG_TYPE_NULL;
1265 }
c602a165 1266 if (q1 != NULL && p > q1 && p[1] == ':')
252b5132 1267 {
c602a165
ILT		 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 != ':')
252b5132
RH		 1281 {
1282 bad_stab (orig);
1283 return DEBUG_TYPE_NULL;
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
1292 && strncmp (typename, *pp, p - *pp) == 0
1293 && typename[p - *pp] == '\0')
b34976b6 1294 info->self_crossref = TRUE;
252b5132
RH		 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. */
252b5132
RH		 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;
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,
1340 pp, (debug_type **) NULL);
1341 if (dtype == DEBUG_TYPE_NULL)
1342 return DEBUG_TYPE_NULL;
1343 }
1344
1345 if (typenums[0] != -1)
1346 {
1347 if (! stab_record_type (dhandle, info, typenums, dtype))
1348 return DEBUG_TYPE_NULL;
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,
1358 pp,
1359 (debug_type **) NULL));
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, pp,
1367 (debug_type **) NULL)));
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, pp,
1376 (debug_type **) NULL),
b34976b6 1377 (debug_type *) NULL, FALSE));
252b5132
RH		 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,
1386 pp,
1387 (debug_type **) NULL));
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, pp,
1396 (debug_type **) NULL)));
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, pp,
1409 (debug_type **) NULL);
1410 if (domain == DEBUG_TYPE_NULL)
1411 return DEBUG_TYPE_NULL;
1412
1413 if (**pp != ',')
1414 {
1415 bad_stab (orig);
1416 return DEBUG_TYPE_NULL;
1417 }
1418 ++*pp;
1419
1420 memtype = parse_stab_type (dhandle, info, (const char *) NULL, pp,
1421 (debug_type **) NULL);
1422 if (memtype == DEBUG_TYPE_NULL)
1423 return DEBUG_TYPE_NULL;
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,
1437 pp, (debug_type **) NULL);
1438 if (return_type == DEBUG_TYPE_NULL)
1439 return DEBUG_TYPE_NULL;
1440 if (**pp != ';')
1441 {
1442 bad_stab (orig);
1443 return DEBUG_TYPE_NULL;
1444 }
1445 ++*pp;
1446 dtype = debug_make_method_type (dhandle, return_type,
1447 DEBUG_TYPE_NULL,
b34976b6 1448 (debug_type *) NULL, FALSE);
252b5132
RH		 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;
b34976b6 1457 bfd_boolean varargs;
252b5132
RH		 1458
1459 domain = parse_stab_type (dhandle, info, (const char *) NULL,
1460 pp, (debug_type **) NULL);
1461 if (domain == DEBUG_TYPE_NULL)
1462 return DEBUG_TYPE_NULL;
1463
1464 if (**pp != ',')
1465 {
1466 bad_stab (orig);
1467 return DEBUG_TYPE_NULL;
1468 }
1469 ++*pp;
1470
1471 return_type = parse_stab_type (dhandle, info, (const char *) NULL,
1472 pp, (debug_type **) NULL);
1473 if (return_type == DEBUG_TYPE_NULL)
1474 return DEBUG_TYPE_NULL;
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;
1485 }
1486 ++*pp;
1487
1488 if (n + 1 >= alloc)
1489 {
1490 alloc += 10;
1491 args = ((debug_type *)
2da42df6 1492 xrealloc (args, alloc * sizeof *args));
252b5132
RH		 1493 }
1494
1495 args[n] = parse_stab_type (dhandle, info, (const char *) NULL,
1496 pp, (debug_type **) NULL);
1497 if (args[n] == DEBUG_TYPE_NULL)
1498 return DEBUG_TYPE_NULL;
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)
b34976b6 1508 varargs = TRUE;
252b5132
RH		 1509 else
1510 {
1511 --n;
b34976b6 1512 varargs = FALSE;
252b5132
RH		 1513 }
1514
1515 args[n] = DEBUG_TYPE_NULL;
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;
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,
1566 pp,
1567 (debug_type **) NULL),
1568 stringp);
1569 break;
1570
1571 default:
1572 bad_stab (orig);
1573 return DEBUG_TYPE_NULL;
1574 }
1575
1576 if (dtype == DEBUG_TYPE_NULL)
1577 return DEBUG_TYPE_NULL;
1578
1579 if (typenums[0] != -1)
1580 {
1581 if (! stab_record_type (dhandle, info, typenums, dtype))
1582 return DEBUG_TYPE_NULL;
1583 }
1584
1585 if (size != -1)
1586 {
1587 if (! debug_record_type_size (dhandle, dtype, (unsigned int) size))
3dceb55b 1588 return DEBUG_TYPE_NULL;
252b5132
RH		 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
b34976b6 1599static bfd_boolean
2da42df6 1600parse_stab_type_number (const char **pp, int *typenums)
252b5132
RH		 1601{
1602 const char *orig;
1603
1604 orig = *pp;
1605
1606 if (**pp != '(')
1607 {
1608 typenums[0] = 0;
b34976b6 1609 typenums[1] = (int) parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 1610 }
1611 else
1612 {
1613 ++*pp;
b34976b6 1614 typenums[0] = (int) parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 1615 if (**pp != ',')
1616 {
1617 bad_stab (orig);
b34976b6 1618 return FALSE;
252b5132
RH		 1619 }
1620 ++*pp;
b34976b6 1621 typenums[1] = (int) parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 1622 if (**pp != ')')
1623 {
1624 bad_stab (orig);
b34976b6 1625 return FALSE;
252b5132
RH		 1626 }
1627 ++*pp;
1628 }
1629
b34976b6 1630 return TRUE;
252b5132
RH		 1631}
1632
1633/* Parse a range type. */
1634
1635static debug_type
2da42df6 1636parse_stab_range_type (void *dhandle, struct stab_handle *info, const char *typename, const char **pp, const int *typenums)
252b5132
RH		 1637{
1638 const char *orig;
1639 int rangenums[2];
b34976b6 1640 bfd_boolean self_subrange;
252b5132
RH		 1641 debug_type index_type;
1642 const char *s2, *s3;
1643 bfd_signed_vma n2, n3;
b34976b6 1644 bfd_boolean ov2, ov3;
252b5132
RH		 1645
1646 orig = *pp;
1647
1648 index_type = DEBUG_TYPE_NULL;
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;
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,
1662 pp, (debug_type **) NULL);
1663 if (index_type == DEBUG_TYPE_NULL)
1664 return DEBUG_TYPE_NULL;
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;
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;
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. */
7eb5191a
NC		 1694#define LLLOW "01000000000000000000000;"
1695#define LLHIGH "0777777777777777777777;"
252b5132
RH		 1696#define ULLHIGH "01777777777777777777777;"
1697 if (index_type == DEBUG_TYPE_NULL)
1698 {
1699 if (strncmp (s2, LLLOW, sizeof LLLOW - 1) == 0
1700 && strncmp (s3, LLHIGH, sizeof LLHIGH - 1) == 0)
b34976b6 1701 return debug_make_int_type (dhandle, 8, FALSE);
252b5132
RH		 1702 if (! ov2
1703 && n2 == 0
1704 && strncmp (s3, ULLHIGH, sizeof ULLHIGH - 1) == 0)
b34976b6 1705 return debug_make_int_type (dhandle, 8, TRUE);
252b5132
RH		 1706 }
1707
1708 warn_stab (orig, _("numeric overflow"));
1709 }
1710
1711 if (index_type == DEBUG_TYPE_NULL)
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)
1736 {
1737 if (strcmp (typename, "long long int") == 0)
b34976b6 1738 return debug_make_int_type (dhandle, 8, FALSE);
252b5132 1739 else if (strcmp (typename, "long long unsigned int") == 0)
b34976b6 1740 return debug_make_int_type (dhandle, 8, TRUE);
252b5132
RH		 1741 }
1742 /* FIXME: The size here really depends upon the target. */
b34976b6 1743 return debug_make_int_type (dhandle, 4, TRUE);
252b5132
RH		 1744 }
1745
1746 /* A range of 0 to 127 is char. */
1747 if (self_subrange && n2 == 0 && n3 == 127)
b34976b6 1748 return debug_make_int_type (dhandle, 1, FALSE);
252b5132
RH		 1749
1750 /* FIXME: gdb checks for the language CHILL here. */
1751
1752 if (n2 == 0)
1753 {
1754 if (n3 < 0)
b34976b6 1755 return debug_make_int_type (dhandle, - n3, TRUE);
252b5132 1756 else if (n3 == 0xff)
b34976b6 1757 return debug_make_int_type (dhandle, 1, TRUE);
252b5132 1758 else if (n3 == 0xffff)
b34976b6 1759 return debug_make_int_type (dhandle, 2, TRUE);
b4c96d0d 1760 else if (n3 == (bfd_signed_vma) 0xffffffff)
b34976b6 1761 return debug_make_int_type (dhandle, 4, TRUE);
252b5132 1762#ifdef BFD64
3c9f43b1 1763 else if (n3 == ((((bfd_signed_vma) 0xffffffff) << 32) | 0xffffffff))
b34976b6 1764 return debug_make_int_type (dhandle, 8, TRUE);
252b5132
RH		 1765#endif
1766 }
1767 else if (n3 == 0
1768 && n2 < 0
1769 && (self_subrange || n2 == -8))
b34976b6 1770 return debug_make_int_type (dhandle, - n2, TRUE);
252b5132
RH		 1771 else if (n2 == - n3 - 1 || n2 == n3 + 1)
1772 {
1773 if (n3 == 0x7f)
b34976b6 1774 return debug_make_int_type (dhandle, 1, FALSE);
252b5132 1775 else if (n3 == 0x7fff)
b34976b6 1776 return debug_make_int_type (dhandle, 2, FALSE);
252b5132 1777 else if (n3 == 0x7fffffff)
b34976b6 1778 return debug_make_int_type (dhandle, 4, FALSE);
252b5132
RH		 1779#ifdef BFD64
1780 else if (n3 == ((((bfd_vma) 0x7fffffff) << 32) | 0xffffffff))
b34976b6 1781 return debug_make_int_type (dhandle, 8, FALSE);
252b5132
RH		 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;
1793 }
1794
1795 index_type = stab_find_type (dhandle, info, rangenums);
1796 if (index_type == DEBUG_TYPE_NULL)
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"));
b34976b6 1801 index_type = debug_make_int_type (dhandle, 4, FALSE);
252b5132
RH		 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
1819static debug_type
2da42df6 1820parse_stab_sun_builtin_type (void *dhandle, const char **pp)
252b5132
RH		 1821{
1822 const char *orig;
b34976b6 1823 bfd_boolean unsignedp;
252b5132
RH		 1824 bfd_vma bits;
1825
1826 orig = *pp;
1827
1828 switch (**pp)
1829 {
1830 case 's':
b34976b6 1831 unsignedp = FALSE;
252b5132
RH		 1832 break;
1833 case 'u':
b34976b6 1834 unsignedp = TRUE;
252b5132
RH		 1835 break;
1836 default:
1837 bad_stab (orig);
1838 return DEBUG_TYPE_NULL;
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. */
b34976b6 1853 (void) parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 1854 if (**pp != ';')
1855 {
1856 bad_stab (orig);
1857 return DEBUG_TYPE_NULL;
1858 }
1859 ++*pp;
1860
9f66665a 1861 /* The second number is always 0, so ignore it too. */
b34976b6 1862 (void) parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 1863 if (**pp != ';')
1864 {
1865 bad_stab (orig);
1866 return DEBUG_TYPE_NULL;
1867 }
1868 ++*pp;
1869
9f66665a 1870 /* The third number is the number of bits for this type. */
b34976b6 1871 bits = parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 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
1890static debug_type
2da42df6 1891parse_stab_sun_floating_type (void *dhandle, const char **pp)
252b5132
RH		 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. */
b34976b6 1901 details = parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 1902 if (**pp != ';')
1903 {
1904 bad_stab (orig);
1905 return DEBUG_TYPE_NULL;
1906 }
1907
1908 /* The second number is the number of bytes occupied by this type */
b34976b6 1909 bytes = parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 1910 if (**pp != ';')
1911 {
1912 bad_stab (orig);
1913 return DEBUG_TYPE_NULL;
1914 }
1915
1916 if (details == NF_COMPLEX
1917 || details == NF_COMPLEX16
1918 || details == NF_COMPLEX32)
1919 return debug_make_complex_type (dhandle, bytes);
1920
9f66665a 1921 return debug_make_float_type (dhandle, bytes);
252b5132
RH		 1922}
1923
1924/* Handle an enum type. */
1925
1926static debug_type
2da42df6 1927parse_stab_enum_type (void *dhandle, const char **pp)
252b5132
RH		 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;
b34976b6 1968 val = (bfd_signed_vma) parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 1969 if (**pp != ',')
1970 {
1971 bad_stab (orig);
1972 return DEBUG_TYPE_NULL;
1973 }
1974 ++*pp;
1975
1976 if (n + 1 >= alloc)
1977 {
1978 alloc += 10;
1979 names = ((const char **)
2da42df6 1980 xrealloc (names, alloc * sizeof *names));
252b5132 1981 values = ((bfd_signed_vma *)
2da42df6 1982 xrealloc (values, alloc * sizeof *values));
252b5132
RH		 1983 }
1984
1985 names[n] = name;
1986 values[n] = val;
1987 ++n;
1988 }
1989
1990 names[n] = NULL;
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
1be59579 2003 in the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;",
252b5132
RH		 2004 *PP will point to "4a:1,0,32;;". */
2005
2006static debug_type
2da42df6
AJ		 2007parse_stab_struct_type (void *dhandle, struct stab_handle *info,
2008 const char *tagname, const char **pp,
2009 bfd_boolean structp, const int *typenums)
252b5132
RH		 2010{
2011 const char *orig;
2012 bfd_vma size;
2013 debug_baseclass *baseclasses;
2014 debug_field *fields;
b34976b6 2015 bfd_boolean statics;
252b5132
RH		 2016 debug_method *methods;
2017 debug_type vptrbase;
b34976b6 2018 bfd_boolean ownvptr;
252b5132
RH		 2019
2020 orig = *pp;
2021
2022 /* Get the size. */
b34976b6 2023 size = parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 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;
2032
2033 if (! statics
2034 && baseclasses == NULL
2035 && methods == NULL
2036 && vptrbase == DEBUG_TYPE_NULL
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;".
2da42df6 2056 ^^ ^ ^ ^ ^ ^ ^
252b5132
RH		 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
b34976b6 2066 Return TRUE for success, FALSE for failure. */
252b5132 2067
b34976b6 2068static bfd_boolean
2da42df6
AJ		 2069parse_stab_baseclasses (void *dhandle, struct stab_handle *info,
2070 const char **pp, debug_baseclass **retp)
252b5132
RH		 2071{
2072 const char *orig;
2073 unsigned int c, i;
2074 debug_baseclass *classes;
2075
2076 *retp = NULL;
2077
2078 orig = *pp;
2079
2080 if (**pp != '!')
2081 {
2082 /* No base classes. */
b34976b6 2083 return TRUE;
252b5132
RH		 2084 }
2085 ++*pp;
2086
b34976b6 2087 c = (unsigned int) parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 2088
2089 if (**pp != ',')
2090 {
2091 bad_stab (orig);
b34976b6 2092 return FALSE;
252b5132
RH		 2093 }
2094 ++*pp;
2095
2096 classes = (debug_baseclass *) xmalloc ((c + 1) * sizeof (**retp));
2097
2098 for (i = 0; i < c; i++)
2099 {
b34976b6 2100 bfd_boolean virtual;
252b5132
RH		 2101 enum debug_visibility visibility;
2102 bfd_vma bitpos;
2103 debug_type type;
2104
2105 switch (**pp)
2106 {
2107 case '0':
b34976b6 2108 virtual = FALSE;
252b5132
RH		 2109 break;
2110 case '1':
b34976b6 2111 virtual = TRUE;
252b5132
RH		 2112 break;
2113 default:
2114 warn_stab (orig, _("unknown virtual character for baseclass"));
b34976b6 2115 virtual = FALSE;
252b5132
RH		 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"));
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. */
b34976b6 2141 bitpos = parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 2142 if (**pp != ',')
2143 {
2144 bad_stab (orig);
b34976b6 2145 return FALSE;
252b5132
RH		 2146 }
2147 ++*pp;
2148
2149 type = parse_stab_type (dhandle, info, (const char *) NULL, pp,
2150 (debug_type **) NULL);
2151 if (type == DEBUG_TYPE_NULL)
b34976b6 2152 return FALSE;
252b5132
RH		 2153
2154 classes[i] = debug_make_baseclass (dhandle, type, bitpos, virtual,
2155 visibility);
2156 if (classes[i] == DEBUG_BASECLASS_NULL)
b34976b6 2157 return FALSE;
252b5132
RH		 2158
2159 if (**pp != ';')
b34976b6 2160 return FALSE;
252b5132
RH		 2161 ++*pp;
2162 }
2163
2164 classes[i] = DEBUG_BASECLASS_NULL;
2165
2166 *retp = classes;
2167
b34976b6 2168 return TRUE;
252b5132
RH		 2169}
2170
2171/* Read struct or class data fields. They have the form:
2172
2da42df6 2173 NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ;
252b5132
RH		 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
2da42df6 2182 '/0' (VISIBILITY_PRIVATE)
252b5132
RH		 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
b34976b6 2191static bfd_boolean
2da42df6
AJ		 2192parse_stab_struct_fields (void *dhandle, struct stab_handle *info,
2193 const char **pp, debug_field **retp,
2194 bfd_boolean *staticsp)
252b5132
RH		 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;
b34976b6 2203 *staticsp = FALSE;
252b5132
RH		 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 *)
2da42df6 2221 xrealloc (fields, alloc * sizeof *fields));
252b5132
RH		 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))
b34976b6 2235 return FALSE;
252b5132
RH		 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
9f66665a 2243 functions (if any), terminate scan loop and return. */
252b5132
RH		 2244
2245 p = strchr (p, ':');
2246 if (p == NULL)
2247 {
2248 bad_stab (orig);
b34976b6 2249 return FALSE;
252b5132
RH		 2250 }
2251
2252 if (p[1] == ':')
2253 break;
2254
2255 if (! parse_stab_one_struct_field (dhandle, info, pp, p, fields + c,
2256 staticsp))
b34976b6 2257 return FALSE;
252b5132
RH		 2258
2259 ++c;
2260 }
2261
2262 fields[c] = DEBUG_FIELD_NULL;
2263
2264 *retp = fields;
2265
b34976b6 2266 return TRUE;
252b5132
RH		 2267}
2268
2269/* Special GNU C++ name. */
2270
b34976b6 2271static bfd_boolean
2da42df6
AJ		 2272parse_stab_cpp_abbrev (void *dhandle, struct stab_handle *info,
2273 const char **pp, debug_field *retp)
252b5132
RH		 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;
2284
2285 orig = *pp;
2286
2287 if (**pp != 'v')
2288 {
2289 bad_stab (*pp);
b34976b6 2290 return FALSE;
252b5132
RH		 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, pp,
2303 (debug_type **) NULL);
2304 if (context == DEBUG_TYPE_NULL)
b34976b6 2305 return FALSE;
252b5132
RH		 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)
2317 {
2318 warn_stab (orig, _("unnamed $vb type"));
2319 typename = "FOO";
2320 }
2321 name = concat ("_vb$", typename, (const char *) NULL);
2322 break;
2323 default:
2324 warn_stab (orig, _("unrecognized C++ abbreviation"));
2325 name = "INVALID_CPLUSPLUS_ABBREV";
2326 break;
2327 }
2328
2329 if (**pp != ':')
2330 {
2331 bad_stab (orig);
b34976b6 2332 return FALSE;
252b5132
RH		 2333 }
2334 ++*pp;
2335
2336 type = parse_stab_type (dhandle, info, (const char *) NULL, pp,
2337 (debug_type **) NULL);
2338 if (**pp != ',')
2339 {
2340 bad_stab (orig);
b34976b6 2341 return FALSE;
252b5132
RH		 2342 }
2343 ++*pp;
2344
b34976b6 2345 bitpos = parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 2346 if (**pp != ';')
2347 {
2348 bad_stab (orig);
b34976b6 2349 return FALSE;
252b5132
RH		 2350 }
2351 ++*pp;
2352
2353 *retp = debug_make_field (dhandle, name, type, bitpos, 0,
2354 DEBUG_VISIBILITY_PRIVATE);
2355 if (*retp == DEBUG_FIELD_NULL)
b34976b6 2356 return FALSE;
252b5132 2357
b34976b6 2358 return TRUE;
252b5132
RH		 2359}
2360
2361/* Parse a single field in a struct or union. */
2362
b34976b6 2363static bfd_boolean
2da42df6
AJ		 2364parse_stab_one_struct_field (void *dhandle, struct stab_handle *info,
2365 const char **pp, const char *p,
2366 debug_field *retp, bfd_boolean *staticsp)
252b5132
RH		 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"));
2401 visibility = DEBUG_VISIBILITY_PUBLIC;
2402 break;
2403 }
2404 ++*pp;
2405 }
2406
2407 type = parse_stab_type (dhandle, info, (const char *) NULL, pp,
2408 (debug_type **) NULL);
2409 if (type == DEBUG_TYPE_NULL)
b34976b6 2410 return FALSE;
252b5132
RH		 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)
2420 {
2421 bad_stab (orig);
b34976b6 2422 return FALSE;
252b5132
RH		 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);
b34976b6 2431 *staticsp = TRUE;
252b5132 2432
b34976b6 2433 return TRUE;
252b5132
RH		 2434 }
2435
2436 if (**pp != ',')
2437 {
2438 bad_stab (orig);
b34976b6 2439 return FALSE;
252b5132
RH		 2440 }
2441 ++*pp;
2442
b34976b6 2443 bitpos = parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 2444 if (**pp != ',')
2445 {
2446 bad_stab (orig);
b34976b6 2447 return FALSE;
252b5132
RH		 2448 }
2449 ++*pp;
2450
b34976b6 2451 bitsize = parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 2452 if (**pp != ';')
2453 {
2454 bad_stab (orig);
b34976b6 2455 return FALSE;
252b5132
RH		 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
b34976b6 2481 return TRUE;
252b5132
RH		 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 '$'), `*' holds the place for an operator
2495 name (such as `+=') and `.' marks the end of the operator name. */
2496
b34976b6 2497static bfd_boolean
2da42df6
AJ		 2498parse_stab_members (void *dhandle, struct stab_handle *info,
2499 const char *tagname, const char **pp,
2500 const int *typenums, debug_method **retp)
252b5132
RH		 2501{
2502 const char *orig;
2503 debug_method *methods;
2504 unsigned int c;
2505 unsigned int alloc;
2506
2507 *retp = NULL;
2508
2509 orig = *pp;
2510
2511 alloc = 0;
2512 methods = NULL;
2513 c = 0;
2514
2515 while (**pp != ';')
2516 {
2517 const char *p;
2518 char *name;
2519 debug_method_variant *variants;
2520 unsigned int cvars;
2521 unsigned int allocvars;
2522 debug_type look_ahead_type;
2523
2524 p = strchr (*pp, ':');
2525 if (p == NULL || p[1] != ':')
2526 break;
2527
2528 /* FIXME: Some systems use something other than '$' here. */
2529 if ((*pp)[0] != 'o' || (*pp)[1] != 'p' || (*pp)[2] != '$')
2530 {
2531 name = savestring (*pp, p - *pp);
2532 *pp = p + 2;
2533 }
2534 else
2535 {
aaad4cf3 2536 /* This is a completely weird case. In order to stuff in the
252b5132
RH		 2537 names that might contain colons (the usual name delimiter),
2538 Mike Tiemann defined a different name format which is
2539 signalled if the identifier is "op$". 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);
b34976b6 2548 return FALSE;
252b5132
RH		 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;
2560
2561 do
2562 {
2563 debug_type type;
b34976b6 2564 bfd_boolean stub;
252b5132
RH		 2565 char *argtypes;
2566 enum debug_visibility visibility;
b34976b6 2567 bfd_boolean constp, volatilep, staticp;
252b5132
RH		 2568 bfd_vma voffset;
2569 debug_type context;
2570 const char *physname;
b34976b6 2571 bfd_boolean varargs;
252b5132
RH		 2572
2573 if (look_ahead_type != DEBUG_TYPE_NULL)
2574 {
2575 /* g++ version 1 kludge */
2576 type = look_ahead_type;
2577 look_ahead_type = DEBUG_TYPE_NULL;
2578 }
2579 else
2580 {
2581 type = parse_stab_type (dhandle, info, (const char *) NULL, pp,
2582 (debug_type **) NULL);
2583 if (type == DEBUG_TYPE_NULL)
b34976b6 2584 return FALSE;
252b5132
RH		 2585 if (**pp != ':')
2586 {
2587 bad_stab (orig);
b34976b6 2588 return FALSE;
252b5132
RH		 2589 }
2590 }
2591
2592 ++*pp;
2593 p = strchr (*pp, ';');
2594 if (p == NULL)
2595 {
2596 bad_stab (orig);
b34976b6 2597 return FALSE;
252b5132
RH		 2598 }
2599
b34976b6 2600 stub = FALSE;
252b5132
RH		 2601 if (debug_get_type_kind (dhandle, type) == DEBUG_KIND_METHOD
2602 && debug_get_parameter_types (dhandle, type, &varargs) == NULL)
b34976b6 2603 stub = TRUE;
252b5132
RH		 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
b34976b6
AM		 2622 constp = FALSE;
2623 volatilep = FALSE;
252b5132
RH		 2624 switch (**pp)
2625 {
2626 case 'A':
2627 /* Normal function. */
2628 ++*pp;
2629 break;
2630 case 'B':
2631 /* const member function. */
b34976b6 2632 constp = TRUE;
252b5132
RH		 2633 ++*pp;
2634 break;
2635 case 'C':
2636 /* volatile member function. */
b34976b6 2637 volatilep = TRUE;
252b5132
RH		 2638 ++*pp;
2639 break;
2640 case 'D':
2641 /* const volatile member function. */
b34976b6
AM		 2642 constp = TRUE;
2643 volatilep = TRUE;
252b5132
RH		 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"));
2653 break;
2654 }
2655
b34976b6 2656 staticp = FALSE;
252b5132
RH		 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;
b34976b6 2664 voffset = parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 2665 if (**pp != ';')
2666 {
2667 bad_stab (orig);
b34976b6 2668 return FALSE;
252b5132
RH		 2669 }
2670 ++*pp;
2671 voffset &= 0x7fffffff;
2672
2673 if (**pp == ';' || *pp == '\0')
2674 {
2675 /* Must be g++ version 1. */
2676 context = DEBUG_TYPE_NULL;
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. */
9f66665a
KH		 2683 look_ahead_type = parse_stab_type (dhandle, info,
2684 (const char *) NULL,
2685 pp,
2686 (debug_type **) NULL);
2687 if (**pp == ':')
2688 {
2689 /* g++ version 1 overloaded methods. */
2690 context = DEBUG_TYPE_NULL;
2691 }
2692 else
2693 {
2694 context = look_ahead_type;
2695 look_ahead_type = DEBUG_TYPE_NULL;
2696 if (**pp != ';')
2697 {
2698 bad_stab (orig);
b34976b6 2699 return FALSE;
9f66665a
KH		 2700 }
2701 ++*pp;
2702 }
2703 }
252b5132
RH		 2704 break;
2705
2706 case '?':
2707 /* static member function. */
2708 ++*pp;
b34976b6 2709 staticp = TRUE;
252b5132
RH		 2710 voffset = 0;
2711 context = DEBUG_TYPE_NULL;
2712 if (strncmp (argtypes, name, strlen (name)) != 0)
b34976b6 2713 stub = TRUE;
252b5132
RH		 2714 break;
2715
2716 default:
2717 warn_stab (orig, "member function type missing");
2718 voffset = 0;
2719 context = DEBUG_TYPE_NULL;
2720 break;
2721
2722 case '.':
2723 ++*pp;
2724 voffset = 0;
2725 context = DEBUG_TYPE_NULL;
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)
b34976b6 2742 return FALSE;
252b5132
RH		 2743 return_type = debug_get_return_type (dhandle, type);
2744 if (return_type == DEBUG_TYPE_NULL)
2745 {
2746 bad_stab (orig);
b34976b6 2747 return FALSE;
252b5132
RH		 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)
b34976b6 2753 return FALSE;
252b5132
RH		 2754 }
2755
2756 if (cvars + 1 >= allocvars)
2757 {
2758 allocvars += 10;
2759 variants = ((debug_method_variant *)
2da42df6 2760 xrealloc (variants,
252b5132
RH		 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)
b34976b6 2777 return FALSE;
252b5132
RH		 2778
2779 ++cvars;
2780 }
2781 while (**pp != ';' && **pp != '\0');
2782
2783 variants[cvars] = DEBUG_METHOD_VARIANT_NULL;
2784
2785 if (**pp != '\0')
2786 ++*pp;
2787
2788 if (c + 1 >= alloc)
2789 {
2790 alloc += 10;
2791 methods = ((debug_method *)
2da42df6 2792 xrealloc (methods, alloc * sizeof *methods));
252b5132
RH		 2793 }
2794
2795 methods[c] = debug_make_method (dhandle, name, variants);
2796
2797 ++c;
2798 }
2799
2800 if (methods != NULL)
2801 methods[c] = DEBUG_METHOD_NULL;
2802
2803 *retp = methods;
2804
b34976b6 2805 return TRUE;
252b5132
RH		 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
2814static debug_type
2da42df6
AJ		 2815parse_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)
252b5132 2820{
b34976b6
AM		 2821 bfd_boolean is_full_physname_constructor;
2822 bfd_boolean is_constructor;
2823 bfd_boolean is_destructor;
041821e6 2824 bfd_boolean is_v3;
252b5132 2825 debug_type *args;
b34976b6 2826 bfd_boolean varargs;
4b73ca92 2827 unsigned int physname_len = 0;
252b5132
RH		 2828
2829 /* Constructors are sometimes handled specially. */
2830 is_full_physname_constructor = ((argtypes[0] == '_'
2831 && argtypes[1] == '_'
3882b010 2832 && (ISDIGIT (argtypes[2])
252b5132
RH		 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
2839 && strcmp (fieldname, tagname) == 0));
2840 is_destructor = ((argtypes[0] == '_'
2841 && (argtypes[1] == '$' || argtypes[1] == '.')
2842 && argtypes[2] == '_')
2843 || strncmp (argtypes, "__dt", 4) == 0);
041821e6 2844 is_v3 = argtypes[0] == '_' && argtypes[1] == 'Z';
252b5132 2845
041821e6 2846 if (is_destructor || is_full_physname_constructor || is_v3)
252b5132
RH		 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 ? 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 && strchr (tagname, '<') != NULL)
2864 {
2865 /* Template methods are fully mangled. */
2866 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
2867 tagname = NULL;
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)
2887 {
2888 fprintf (stderr, _("No mangling for \"%s\"\n"), fieldname);
2889 return DEBUG_TYPE_NULL;
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
4b73ca92 2905 physname_len = strlen (physname);
252b5132
RH		 2906 strcat (physname, buf);
2907 if (tagname != NULL)
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;
2918 return debug_make_method_type (dhandle, return_type, class_type, args,
b34976b6 2919 FALSE);
252b5132
RH		 2920 }
2921
4b73ca92 2922 args = stab_demangle_argtypes (dhandle, info, *pphysname, &varargs, physname_len);
252b5132
RH		 2923 if (args == NULL)
2924 return DEBUG_TYPE_NULL;
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
b34976b6 2938static bfd_boolean
2da42df6
AJ		 2939parse_stab_tilde_field (void *dhandle, struct stab_handle *info,
2940 const char **pp, const int *typenums,
2941 debug_type *retvptrbase, bfd_boolean *retownvptr)
252b5132
RH		 2942{
2943 const char *orig;
2944 const char *hold;
2945 int vtypenums[2];
2946
2947 *retvptrbase = DEBUG_TYPE_NULL;
b34976b6 2948 *retownvptr = FALSE;
252b5132
RH		 2949
2950 orig = *pp;
2951
9f66665a 2952 /* If we are positioned at a ';', then skip it. */
252b5132
RH		 2953 if (**pp == ';')
2954 ++*pp;
2955
2956 if (**pp != '~')
b34976b6 2957 return TRUE;
252b5132
RH		 2958
2959 ++*pp;
2960
2961 if (**pp == '=' || **pp == '+' || **pp == '-')
2962 {
2963 /* Obsolete flags that used to indicate the presence of
9f66665a 2964 constructors and/or destructors. */
252b5132
RH		 2965 ++*pp;
2966 }
2967
2968 if (**pp != '%')
b34976b6 2969 return TRUE;
252b5132
RH		 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))
b34976b6 2978 return FALSE;
252b5132
RH		 2979
2980 if (vtypenums[0] == typenums[0]
2981 && vtypenums[1] == typenums[1])
b34976b6 2982 *retownvptr = TRUE;
252b5132
RH		 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, pp,
2991 (debug_type **) NULL);
2992 for (p = *pp; *p != ';' && *p != '\0'; p++)
2993 ;
2994 if (*p != ';')
2995 {
2996 bad_stab (orig);
b34976b6 2997 return FALSE;
252b5132
RH		 2998 }
2999
3000 *retvptrbase = vtype;
3001
3002 *pp = p + 1;
3003 }
3004
b34976b6 3005 return TRUE;
252b5132
RH		 3006}
3007
3008/* Read a definition of an array type. */
3009
3010static debug_type
2da42df6
AJ		 3011parse_stab_array_type (void *dhandle, struct stab_handle *info,
3012 const char **pp, bfd_boolean stringp)
252b5132
RH		 3013{
3014 const char *orig;
3015 const char *p;
3016 int typenums[2];
3017 debug_type index_type;
b34976b6 3018 bfd_boolean adjustable;
252b5132
RH		 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))
3dceb55b 3036 return DEBUG_TYPE_NULL;
252b5132
RH		 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)
3041 {
b34976b6 3042 index_type = debug_make_int_type (dhandle, 4, FALSE);
252b5132 3043 if (index_type == DEBUG_TYPE_NULL)
3dceb55b 3044 return DEBUG_TYPE_NULL;
252b5132
RH		 3045 }
3046 *pp = p;
3047 }
3048 else
3049 {
3050 index_type = parse_stab_type (dhandle, info, (const char *) NULL, pp,
3051 (debug_type **) NULL);
3052 }
3053
3054 if (**pp != ';')
3055 {
3056 bad_stab (orig);
3057 return DEBUG_TYPE_NULL;
3058 }
3059 ++*pp;
3060
b34976b6 3061 adjustable = FALSE;
252b5132 3062
3882b010 3063 if (! ISDIGIT (**pp) && **pp != '-')
252b5132
RH		 3064 {
3065 ++*pp;
b34976b6 3066 adjustable = TRUE;
252b5132
RH		 3067 }
3068
b34976b6 3069 lower = (bfd_signed_vma) parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 3070 if (**pp != ';')
3071 {
3072 bad_stab (orig);
3dceb55b 3073 return DEBUG_TYPE_NULL;
252b5132
RH		 3074 }
3075 ++*pp;
3076
3882b010 3077 if (! ISDIGIT (**pp) && **pp != '-')
252b5132
RH		 3078 {
3079 ++*pp;
b34976b6 3080 adjustable = TRUE;
252b5132
RH		 3081 }
3082
b34976b6 3083 upper = (bfd_signed_vma) parse_number (pp, (bfd_boolean *) NULL);
252b5132
RH		 3084 if (**pp != ';')
3085 {
3086 bad_stab (orig);
3dceb55b 3087 return DEBUG_TYPE_NULL;
252b5132
RH		 3088 }
3089 ++*pp;
3090
3091 element_type = parse_stab_type (dhandle, info, (const char *) NULL, pp,
3092 (debug_type **) NULL);
3093 if (element_type == DEBUG_TYPE_NULL)
3dceb55b 3094 return DEBUG_TYPE_NULL;
252b5132
RH		 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
3109struct 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
3127static void
2da42df6 3128push_bincl (struct stab_handle *info, const char *name, bfd_vma hash)
252b5132
RH		 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;
3139 info->bincl_list = n;
3140 info->bincl_stack = n;
3141
3142 ++info->files;
3143 info->file_types = ((struct stab_types **)
2da42df6 3144 xrealloc (info->file_types,
252b5132
RH		 3145 (info->files
3146 * sizeof *info->file_types)));
3147 info->file_types[n->file] = NULL;
3148}
3149
3150/* Finish an N_BINCL file, at an N_EINCL, popping the name off the
3151 stack. */
3152
3153static const char *
2da42df6 3154pop_bincl (struct stab_handle *info)
252b5132
RH		 3155{
3156 struct bincl_file *o;
3157
3158 o = info->bincl_stack;
3159 if (o == NULL)
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)
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
b34976b6 3172static bfd_boolean
2da42df6 3173find_excl (struct stab_handle *info, const char *name, bfd_vma hash)
252b5132
RH		 3174{
3175 struct bincl_file *l;
3176
3177 ++info->files;
3178 info->file_types = ((struct stab_types **)
2da42df6 3179 xrealloc (info->file_types,
252b5132
RH		 3180 (info->files
3181 * sizeof *info->file_types)));
3182
3183 for (l = info->bincl_list; l != NULL; l = l->next)
3184 if (l->hash == hash && strcmp (l->name, name) == 0)
3185 break;
3186 if (l == NULL)
3187 {
3188 warn_stab (name, _("Undefined N_EXCL"));
3189 info->file_types[info->files - 1] = NULL;
b34976b6 3190 return TRUE;
252b5132
RH		 3191 }
3192
3193 info->file_types[info->files - 1] = l->file_types;
3194
b34976b6 3195 return TRUE;
252b5132
RH		 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
b34976b6 3203static bfd_boolean
2da42df6
AJ		 3204stab_record_variable (void *dhandle, struct stab_handle *info,
3205 const char *name, debug_type type,
3206 enum debug_var_kind kind, bfd_vma val)
252b5132
RH		 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
b34976b6 3225 return TRUE;
252b5132
RH		 3226}
3227
3228/* Emit pending variable definitions. This is called after we see the
3229 N_LBRAC that starts the block. */
3230
b34976b6 3231static bfd_boolean
2da42df6 3232stab_emit_pending_vars (void *dhandle, struct stab_handle *info)
252b5132
RH		 3233{
3234 struct stab_pending_var *v;
3235
3236 v = info->pending;
3237 while (v != NULL)
3238 {
3239 struct stab_pending_var *next;
3240
3241 if (! debug_record_variable (dhandle, v->name, v->type, v->kind, v->val))
b34976b6 3242 return FALSE;
252b5132
RH		 3243
3244 next = v->next;
3245 free (v);
3246 v = next;
3247 }
3248
3249 info->pending = NULL;
3250
b34976b6 3251 return TRUE;
252b5132
RH		 3252}
3253
3254/* Find the slot for a type in the database. */
3255
3256static debug_type *
2da42df6 3257stab_find_slot (struct stab_handle *info, const int *typenums)
252b5132
RH		 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, _("Type file number %d out of range\n"), filenum);
3269 return NULL;
3270 }
3271 if (index < 0)
3272 {
3273 fprintf (stderr, _("Type index number %d out of range\n"), index);
3274 return NULL;
3275 }
3276
3277 ps = info->file_types + filenum;
3278
3279 while (index >= STAB_TYPES_SLOTS)
3280 {
3281 if (*ps == NULL)
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;
3288 }
3289 if (*ps == NULL)
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
3301static debug_type
2da42df6 3302stab_find_type (void *dhandle, struct stab_handle *info, const int *typenums)
252b5132
RH		 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)
3314 return DEBUG_TYPE_NULL;
3315
3316 if (*slot == DEBUG_TYPE_NULL)
3317 return debug_make_indirect_type (dhandle, slot, (const char *) NULL);
3318
3319 return *slot;
3320}
3321
3322/* Record that a given type number refers to a given type. */
3323
b34976b6 3324static bfd_boolean
2da42df6
AJ		 3325stab_record_type (void *dhandle ATTRIBUTE_UNUSED, struct stab_handle *info,
3326 const int *typenums, debug_type type)
252b5132
RH		 3327{
3328 debug_type *slot;
3329
3330 slot = stab_find_slot (info, typenums);
3331 if (slot == NULL)
b34976b6 3332 return FALSE;
252b5132
RH		 3333
3334 /* gdb appears to ignore type redefinitions, so we do as well. */
3335
3336 *slot = type;
3337
b34976b6 3338 return TRUE;
252b5132
RH		 3339}
3340
3341/* Return an XCOFF builtin type. */
3342
3343static debug_type
2da42df6
AJ		 3344stab_xcoff_builtin_type (void *dhandle, struct stab_handle *info,
3345 int typenum)
252b5132
RH		 3346{
3347 debug_type rettype;
3348 const char *name;
3349
3350 if (typenum >= 0 || typenum < -XCOFF_TYPE_COUNT)
3351 {
3352 fprintf (stderr, _("Unrecognized XCOFF type %d\n"), typenum);
3353 return DEBUG_TYPE_NULL;
3354 }
3355 if (info->xcoff_types[-typenum] != NULL)
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";
b34976b6 3364 rettype = debug_make_int_type (dhandle, 4, FALSE);
252b5132
RH		 3365 break;
3366 case 2:
3367 name = "char";
b34976b6 3368 rettype = debug_make_int_type (dhandle, 1, FALSE);
252b5132
RH		 3369 break;
3370 case 3:
3371 name = "short";
b34976b6 3372 rettype = debug_make_int_type (dhandle, 2, FALSE);
252b5132
RH		 3373 break;
3374 case 4:
3375 name = "long";
b34976b6 3376 rettype = debug_make_int_type (dhandle, 4, FALSE);
252b5132
RH		 3377 break;
3378 case 5:
3379 name = "unsigned char";
b34976b6 3380 rettype = debug_make_int_type (dhandle, 1, TRUE);
252b5132
RH		 3381 break;
3382 case 6:
3383 name = "signed char";
b34976b6 3384 rettype = debug_make_int_type (dhandle, 1, FALSE);
252b5132
RH		 3385 break;
3386 case 7:
3387 name = "unsigned short";
b34976b6 3388 rettype = debug_make_int_type (dhandle, 2, TRUE);
252b5132
RH		 3389 break;
3390 case 8:
3391 name = "unsigned int";
b34976b6 3392 rettype = debug_make_int_type (dhandle, 4, TRUE);
252b5132
RH		 3393 break;
3394 case 9:
3395 name = "unsigned";
b34976b6 3396 rettype = debug_make_int_type (dhandle, 4, TRUE);
252b5132
RH		 3397 case 10:
3398 name = "unsigned long";
b34976b6 3399 rettype = debug_make_int_type (dhandle, 4, TRUE);
252b5132
RH		 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";
b34976b6 3424 rettype = debug_make_int_type (dhandle, 4, FALSE);
252b5132
RH		 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;
3442 break;
3443 case 20:
3444 /* FIXME */
3445 name = "character";
b34976b6 3446 rettype = debug_make_int_type (dhandle, 1, TRUE);
252b5132
RH		 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";
b34976b6 3476 rettype = debug_make_int_type (dhandle, 1, FALSE);
252b5132
RH		 3477 break;
3478 case 28:
3479 name = "integer*2";
b34976b6 3480 rettype = debug_make_int_type (dhandle, 2, FALSE);
252b5132
RH		 3481 break;
3482 case 29:
3483 name = "integer*4";
b34976b6 3484 rettype = debug_make_int_type (dhandle, 4, FALSE);
252b5132
RH		 3485 break;
3486 case 30:
3487 /* FIXME */
3488 name = "wchar";
b34976b6 3489 rettype = debug_make_int_type (dhandle, 2, FALSE);
252b5132
RH		 3490 break;
3491 case 31:
3492 name = "long long";
b34976b6 3493 rettype = debug_make_int_type (dhandle, 8, FALSE);
252b5132
RH		 3494 break;
3495 case 32:
3496 name = "unsigned long long";
b34976b6 3497 rettype = debug_make_int_type (dhandle, 8, TRUE);
252b5132
RH		 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";
b34976b6 3505 rettype = debug_make_int_type (dhandle, 8, FALSE);
252b5132
RH		 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
3520static debug_type
2da42df6
AJ		 3521stab_find_tagged_type (void *dhandle, struct stab_handle *info,
3522 const char *p, int len, enum debug_type_kind kind)
252b5132
RH		 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)
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; 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)
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;
3561 st->type = debug_make_indirect_type (dhandle, &st->slot, name);
3562 info->tags = st;
3563 }
3564
3565 return st->type;
3566}
3567\f
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
3583struct 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
3594struct stab_demangle_info
3595{
3596 /* The debugging information handle. */
2da42df6 3597 void *dhandle;
252b5132
RH		 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. */
b34976b6 3603 bfd_boolean varargs;
252b5132
RH		 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
2da42df6
AJ		 3612static void stab_bad_demangle (const char *);
3613static unsigned int stab_demangle_count (const char **);
3614static bfd_boolean stab_demangle_get_count (const char **, unsigned int *);
b34976b6 3615static bfd_boolean stab_demangle_prefix
2da42df6 3616 (struct stab_demangle_info *, const char **, unsigned int);
b34976b6 3617static bfd_boolean stab_demangle_function_name
2da42df6 3618 (struct stab_demangle_info *, const char **, const char *);
b34976b6 3619static bfd_boolean stab_demangle_signature
2da42df6 3620 (struct stab_demangle_info *, const char **);
b34976b6 3621static bfd_boolean stab_demangle_qualified
2da42df6 3622 (struct stab_demangle_info *, const char **, debug_type *);
b34976b6 3623static bfd_boolean stab_demangle_template
2da42df6 3624 (struct stab_demangle_info *, const char **, char **);
b34976b6 3625static bfd_boolean stab_demangle_class
2da42df6 3626 (struct stab_demangle_info *, const char **, const char **);
b34976b6 3627static bfd_boolean stab_demangle_args
2da42df6 3628 (struct stab_demangle_info *, const char **, debug_type **, bfd_boolean *);
b34976b6 3629static bfd_boolean stab_demangle_arg
2da42df6
AJ		 3630 (struct stab_demangle_info *, const char **, debug_type **,
3631 unsigned int *, unsigned int *);
b34976b6 3632static bfd_boolean stab_demangle_type
2da42df6 3633 (struct stab_demangle_info *, const char **, debug_type *);
b34976b6 3634static bfd_boolean stab_demangle_fund_type
2da42df6 3635 (struct stab_demangle_info *, const char **, debug_type *);
b34976b6 3636static bfd_boolean stab_demangle_remember_type
2da42df6 3637 (struct stab_demangle_info *, const char *, int);
252b5132
RH		 3638
3639/* Warn about a bad demangling. */
3640
3641static void
2da42df6 3642stab_bad_demangle (const char *s)
252b5132
RH		 3643{
3644 fprintf (stderr, _("bad mangled name `%s'\n"), s);
3645}
3646
3647/* Get a count from a stab string. */
3648
3649static unsigned int
2da42df6 3650stab_demangle_count (const char **pp)
252b5132
RH		 3651{
3652 unsigned int count;
3653
3654 count = 0;
3882b010 3655 while (ISDIGIT (**pp))
252b5132
RH		 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
b34976b6 3667static bfd_boolean
2da42df6 3668stab_demangle_get_count (const char **pp, unsigned int *pi)
252b5132 3669{
3882b010 3670 if (! ISDIGIT (**pp))
b34976b6 3671 return FALSE;
252b5132
RH		 3672
3673 *pi = **pp - '0';
3674 ++*pp;
3882b010 3675 if (ISDIGIT (**pp))
252b5132
RH		 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 }
3882b010 3688 while (ISDIGIT (*p));
252b5132
RH		 3689 if (*p == '_')
3690 {
3691 *pp = p + 1;
3692 *pi = count;
3693 }
3694 }
3695
b34976b6 3696 return TRUE;
252b5132
RH		 3697}
3698
3699/* This function demangles a physical name, returning a NULL
3700 terminated array of argument types. */
3701
3702static debug_type *
2da42df6
AJ		 3703stab_demangle_argtypes (void *dhandle, struct stab_handle *info,
3704 const char *physname, bfd_boolean *pvarargs,
3705 unsigned int physname_len)
252b5132
RH		 3706{
3707 struct stab_demangle_info minfo;
3708
041821e6
ILT		 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
252b5132
RH		 3713 minfo.dhandle = dhandle;
3714 minfo.info = info;
3715 minfo.args = NULL;
b34976b6 3716 minfo.varargs = FALSE;
252b5132
RH		 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
4b73ca92 3726 if (! stab_demangle_prefix (&minfo, &physname, physname_len))
252b5132
RH		 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;
3737
3738 if (minfo.args == NULL)
3739 fprintf (stderr, _("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)
3746 free (minfo.typestrings);
3747 return NULL;
3748}
3749
3750/* Demangle the prefix of the mangled name. */
3751
b34976b6 3752static bfd_boolean
2da42df6
AJ		 3753stab_demangle_prefix (struct stab_demangle_info *minfo, const char **pp,
3754 unsigned int physname_len)
252b5132
RH		 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
4b73ca92
NC		 3762 if (physname_len)
3763 scan = *pp + physname_len;
3764 else
252b5132 3765 {
4b73ca92
NC		 3766 /* Look for `__'. */
3767 scan = *pp;
3768 do
3769 scan = strchr (scan, '_');
3770 while (scan != NULL && *++scan != '_');
252b5132 3771
4b73ca92
NC		 3772 if (scan == NULL)
3773 {
3774 stab_bad_demangle (*pp);
b34976b6 3775 return FALSE;
4b73ca92 3776 }
252b5132 3777
4b73ca92 3778 --scan;
252b5132 3779
4b73ca92
NC		 3780 /* We found `__'; move ahead to the last contiguous `__' pair. */
3781 i = strspn (scan, "_");
3782 if (i > 2)
3783 scan += i - 2;
3784 }
252b5132
RH		 3785
3786 if (scan == *pp
3882b010 3787 && (ISDIGIT (scan[2])
252b5132
RH		 3788 || scan[2] == 'Q'
3789 || scan[2] == 't'))
3790 {
3791 /* This is a GNU style constructor name. */
3792 *pp = scan + 2;
b34976b6 3793 return TRUE;
252b5132
RH		 3794 }
3795 else if (scan == *pp
3882b010 3796 && ! ISDIGIT (scan[2])
252b5132
RH		 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 || scan[2] == '\0')
3805 {
3806 stab_bad_demangle (*pp);
b34976b6 3807 return FALSE;
252b5132
RH		 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);
b34976b6 3820 return FALSE;
252b5132
RH		 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
b34976b6 3829static bfd_boolean
2da42df6
AJ		 3830stab_demangle_function_name (struct stab_demangle_info *minfo,
3831 const char **pp, const char *scan)
252b5132
RH		 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))
b34976b6 3852 return FALSE;
252b5132
RH		 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))
b34976b6 3864 return FALSE;
252b5132
RH		 3865 }
3866
b34976b6 3867 return TRUE;
252b5132
RH		 3868}
3869
3870/* Demangle the signature. This is where the argument types are
3871 found. */
3872
b34976b6 3873static bfd_boolean
2da42df6 3874stab_demangle_signature (struct stab_demangle_info *minfo, const char **pp)
252b5132
RH		 3875{
3876 const char *orig;
b34976b6 3877 bfd_boolean expect_func, func_done;
252b5132
RH		 3878 const char *hold;
3879
3880 orig = *pp;
3881
b34976b6
AM		 3882 expect_func = FALSE;
3883 func_done = FALSE;
252b5132
RH		 3884 hold = NULL;
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)
3893 || ! stab_demangle_remember_type (minfo, hold, *pp - hold))
b34976b6
AM		 3894 return FALSE;
3895 expect_func = TRUE;
252b5132
RH		 3896 hold = NULL;
3897 break;
3898
3899 case 'S':
3900 /* Static member function. FIXME: Can this happen? */
3901 if (hold == NULL)
3902 hold = *pp;
3903 ++*pp;
3904 break;
3905
3906 case 'C':
3907 /* Const member function. */
3908 if (hold == NULL)
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)
3916 hold = *pp;
3917 if (! stab_demangle_class (minfo, pp, (const char **) NULL)
3918 || ! stab_demangle_remember_type (minfo, hold, *pp - hold))
b34976b6
AM		 3919 return FALSE;
3920 expect_func = TRUE;
252b5132
RH		 3921 hold = NULL;
3922 break;
3923
3924 case 'F':
3925 /* Function. I don't know if this actually happens with g++
3926 output. */
3927 hold = NULL;
b34976b6 3928 func_done = TRUE;
252b5132
RH		 3929 ++*pp;
3930 if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs))
b34976b6 3931 return FALSE;
252b5132
RH		 3932 break;
3933
3934 case 't':
3935 /* Template. */
3936 if (hold == NULL)
3937 hold = *pp;
3938 if (! stab_demangle_template (minfo, pp, (char **) NULL)
3939 || ! stab_demangle_remember_type (minfo, hold, *pp - hold))
b34976b6 3940 return FALSE;
252b5132 3941 hold = NULL;
b34976b6 3942 expect_func = TRUE;
252b5132
RH		 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);
b34976b6 3952 return FALSE;
252b5132
RH		 3953
3954 default:
3955 /* Assume we have stumbled onto the first outermost function
3956 argument token, and start processing args. */
b34976b6 3957 func_done = TRUE;
252b5132 3958 if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs))
b34976b6 3959 return FALSE;
252b5132
RH		 3960 break;
3961 }
3962
3963 if (expect_func)
3964 {
b34976b6 3965 func_done = TRUE;
252b5132 3966 if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs))
b34976b6 3967 return FALSE;
252b5132
RH		 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))
b34976b6 3978 return FALSE;
252b5132
RH		 3979 }
3980
b34976b6 3981 return TRUE;
252b5132
RH		 3982}
3983
3984/* Demangle a qualified name, such as "Q25Outer5Inner" which is the
3985 mangled form of "Outer::Inner". */
3986
b34976b6 3987static bfd_boolean
2da42df6
AJ		 3988stab_demangle_qualified (struct stab_demangle_info *minfo, const char **pp,
3989 debug_type *ptype)
252b5132
RH		 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;
3882b010 4005 if (! ISDIGIT (*p) || *p == '0')
252b5132
RH		 4006 {
4007 stab_bad_demangle (orig);
b34976b6 4008 return FALSE;
252b5132
RH		 4009 }
4010 qualifiers = atoi (p);
3882b010 4011 while (ISDIGIT (*p))
252b5132
RH		 4012 ++p;
4013 if (*p != '_')
4014 {
4015 stab_bad_demangle (orig);
b34976b6 4016 return FALSE;
252b5132
RH		 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);
b34976b6 4033 return FALSE;
252b5132
RH		 4034 }
4035
4036 context = DEBUG_TYPE_NULL;
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 ? &name : NULL))
b34976b6 4049 return FALSE;
252b5132
RH		 4050
4051 if (ptype != NULL)
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)
b34976b6 4058 return FALSE;
252b5132
RH		 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);
b34976b6 4069 return FALSE;
252b5132
RH		 4070 }
4071
4072 if (ptype != NULL)
4073 {
4074 const debug_field *fields;
4075
4076 fields = NULL;
4077 if (context != DEBUG_TYPE_NULL)
4078 fields = debug_get_fields (minfo->dhandle, context);
4079
4080 context = DEBUG_TYPE_NULL;
4081
4082 if (fields != NULL)
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; fields++)
4097 {
4098 debug_type ft;
4099 const char *dn;
4100
4101 ft = debug_get_field_type (minfo->dhandle, *fields);
4102 if (ft == NULL)
b34976b6 4103 return FALSE;
252b5132
RH		 4104 dn = debug_get_type_name (minfo->dhandle, ft);
4105 if (dn != NULL && strcmp (dn, name) == 0)
4106 {
4107 context = ft;
4108 break;
4109 }
4110 }
4111
4112 free (name);
4113 }
4114
4115 if (context == DEBUG_TYPE_NULL)
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)
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)
b34976b6 4140 return FALSE;
252b5132
RH		 4141 }
4142 }
4143 }
4144
4145 *pp += len;
4146 }
4147 }
4148
4149 if (ptype != NULL)
4150 *ptype = context;
4151
b34976b6 4152 return TRUE;
252b5132
RH		 4153}
4154
4155/* Demangle a template. If PNAME is not NULL, this sets *PNAME to a
4156 string representation of the template. */
4157
b34976b6 4158static bfd_boolean
2da42df6
AJ		 4159stab_demangle_template (struct stab_demangle_info *minfo, const char **pp,
4160 char **pname)
252b5132
RH		 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);
b34976b6 4174 return FALSE;
252b5132
RH		 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);
b34976b6 4182 return FALSE;
252b5132
RH		 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))
b34976b6 4192 return FALSE;
252b5132
RH		 4193 }
4194 else
4195 {
4196 const char *old_p;
b34976b6
AM		 4197 bfd_boolean pointerp, realp, integralp, charp, boolp;
4198 bfd_boolean done;
252b5132
RH		 4199
4200 old_p = *pp;
b34976b6
AM		 4201 pointerp = FALSE;
4202 realp = FALSE;
4203 integralp = FALSE;
4204 charp = FALSE;
4205 boolp = FALSE;
4206 done = FALSE;
252b5132
RH		 4207
4208 /* This is a value parameter. */
4209
4210 if (! stab_demangle_type (minfo, pp, (debug_type *) NULL))
b34976b6 4211 return FALSE;
252b5132
RH		 4212
4213 while (*old_p != '\0' && ! done)
4214 {
4215 switch (*old_p)
4216 {
4217 case 'P':
4218 case 'p':
4219 case 'R':
b34976b6
AM		 4220 pointerp = TRUE;
4221 done = TRUE;
252b5132
RH		 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. */
b34976b6
AM		 4233 integralp = TRUE;
4234 done = TRUE;
252b5132
RH		 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. */
b34976b6
AM		 4245 integralp = TRUE;
4246 done = TRUE;
252b5132
RH		 4247 break;
4248 case 'b': /* Bool. */
b34976b6
AM		 4249 boolp = TRUE;
4250 done = TRUE;
252b5132
RH		 4251 break;
4252 case 'c': /* Char. */
b34976b6
AM		 4253 charp = TRUE;
4254 done = TRUE;
252b5132
RH		 4255 break;
4256 case 'r': /* Long double. */
4257 case 'd': /* Double. */
4258 case 'f': /* Float. */
b34976b6
AM		 4259 realp = TRUE;
4260 done = TRUE;
252b5132
RH		 4261 break;
4262 default:
4263 /* Assume it's a user defined integral type. */
b34976b6
AM		 4264 integralp = TRUE;
4265 done = TRUE;
252b5132
RH		 4266 break;
4267 }
4268 }
4269
4270 if (integralp)
4271 {
4272 if (**pp == 'm')
4273 ++*pp;
3882b010 4274 while (ISDIGIT (**pp))
252b5132
RH		 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);
b34976b6 4287 return FALSE;
252b5132
RH		 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);
b34976b6 4298 return FALSE;
252b5132
RH		 4299 }
4300 }
4301 else if (realp)
4302 {
4303 if (**pp == 'm')
4304 ++*pp;
3882b010 4305 while (ISDIGIT (**pp))
252b5132
RH		 4306 ++*pp;
4307 if (**pp == '.')
4308 {
4309 ++*pp;
3882b010 4310 while (ISDIGIT (**pp))
252b5132
RH		 4311 ++*pp;
4312 }
4313 if (**pp == 'e')
4314 {
4315 ++*pp;
3882b010 4316 while (ISDIGIT (**pp))
252b5132
RH		 4317 ++*pp;
4318 }
4319 }
4320 else if (pointerp)
4321 {
4322 unsigned int len;
4323
2b25cacb
ILT		 4324 len = stab_demangle_count (pp);
4325 if (len == 0)
252b5132
RH		 4326 {
4327 stab_bad_demangle (orig);
b34976b6 4328 return FALSE;
252b5132
RH		 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)
4338 {
d81d6584 4339 char *s1, *s2, *s3, *s4 = NULL;
252b5132
RH		 4340 char *from, *to;
4341
4342 s1 = savestring (orig, *pp - orig);
4343
4344 s2 = concat ("NoSuchStrinG__", s1, (const char *) NULL);
4345
4346 free (s1);
4347
4348 s3 = cplus_demangle (s2, DMGL_ANSI);
4349
4350 free (s2);
4351
4352 if (s3 != NULL)
4353 s4 = strstr (s3, "::NoSuchStrinG");
4354 if (s3 == NULL || s4 == NULL)
4355 {
4356 stab_bad_demangle (orig);
4357 if (s3 != NULL)
4358 free (s3);
b34976b6 4359 return FALSE;
252b5132
RH		 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
b34976b6 4375 return TRUE;
252b5132
RH		 4376}
4377
4378/* Demangle a class name. */
4379
b34976b6 4380static bfd_boolean
2da42df6
AJ		 4381stab_demangle_class (struct stab_demangle_info *minfo ATTRIBUTE_UNUSED,
4382 const char **pp, const char **pstart)
252b5132
RH		 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);
b34976b6 4393 return FALSE;
252b5132
RH		 4394 }
4395
4396 if (pstart != NULL)
4397 *pstart = *pp;
4398
4399 *pp += n;
4400
b34976b6 4401 return TRUE;
252b5132
RH		 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
b34976b6 4407static bfd_boolean
2da42df6
AJ		 4408stab_demangle_args (struct stab_demangle_info *minfo, const char **pp,
4409 debug_type **pargs, bfd_boolean *pvarargs)
252b5132
RH		 4410{
4411 const char *orig;
4412 unsigned int alloc, count;
4413
4414 orig = *pp;
4415
4416 alloc = 10;
4417 if (pargs != NULL)
4418 {
4419 *pargs = (debug_type *) xmalloc (alloc * sizeof **pargs);
b34976b6 4420 *pvarargs = FALSE;
252b5132
RH		 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);
b34976b6 4441 return FALSE;
252b5132
RH		 4442 }
4443 }
4444
4445 if (! stab_demangle_get_count (pp, &t))
4446 {
4447 stab_bad_demangle (orig);
b34976b6 4448 return FALSE;
252b5132
RH		 4449 }
4450
4451 if (t >= minfo->typestring_count)
4452 {
4453 stab_bad_demangle (orig);
b34976b6 4454 return FALSE;
252b5132
RH		 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))
b34976b6 4462 return FALSE;
252b5132
RH		 4463 }
4464 }
4465 else
4466 {
4467 if (! stab_demangle_arg (minfo, pp, pargs, &count, &alloc))
b34976b6 4468 return FALSE;
252b5132
RH		 4469 }
4470 }
4471
4472 if (pargs != NULL)
4473 (*pargs)[count] = DEBUG_TYPE_NULL;
4474
4475 if (**pp == 'e')
4476 {
4477 if (pargs != NULL)
b34976b6 4478 *pvarargs = TRUE;
252b5132
RH		 4479 ++*pp;
4480 }
4481
b34976b6 4482 return TRUE;
252b5132
RH		 4483}
4484
4485/* Demangle a single argument. */
4486
b34976b6 4487static bfd_boolean
2da42df6
AJ		 4488stab_demangle_arg (struct stab_demangle_info *minfo, const char **pp,
4489 debug_type **pargs, unsigned int *pcount,
4490 unsigned int *palloc)
252b5132
RH		 4491{
4492 const char *start;
4493 debug_type type;
4494
4495 start = *pp;
4496 if (! stab_demangle_type (minfo, pp,
4497 pargs == NULL ? (debug_type *) NULL : &type)
4498 || ! stab_demangle_remember_type (minfo, start, *pp - start))
b34976b6 4499 return FALSE;
252b5132
RH		 4500
4501 if (pargs != NULL)
4502 {
4503 if (type == DEBUG_TYPE_NULL)
b34976b6 4504 return FALSE;
252b5132
RH		 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
b34976b6 4516 return TRUE;
252b5132
RH		 4517}
4518
4519/* Demangle a type. If the ptype argument is not NULL, *ptype is set
4520 to the newly allocated type. */
4521
b34976b6 4522static bfd_boolean
2da42df6
AJ		 4523stab_demangle_type (struct stab_demangle_info *minfo, const char **pp,
4524 debug_type *ptype)
252b5132
RH		 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))
b34976b6 4537 return FALSE;
252b5132
RH		 4538 if (ptype != NULL)
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))
b34976b6 4546 return FALSE;
252b5132
RH		 4547 if (ptype != NULL)
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 {
3882b010 4560 if (! ISDIGIT (**pp))
252b5132
RH		 4561 {
4562 stab_bad_demangle (orig);
b34976b6 4563 return FALSE;
252b5132
RH		 4564 }
4565 high *= 10;
4566 high += **pp - '0';
4567 ++*pp;
4568 }
4569 if (**pp != '_')
4570 {
4571 stab_bad_demangle (orig);
b34976b6 4572 return FALSE;
252b5132
RH		 4573 }
4574 ++*pp;
4575
4576 if (! stab_demangle_type (minfo, pp, ptype))
b34976b6 4577 return FALSE;
252b5132
RH		 4578 if (ptype != NULL)
4579 {
4580 debug_type int_type;
4581
4582 int_type = debug_find_named_type (minfo->dhandle, "int");
4583 if (int_type == NULL)
b34976b6 4584 int_type = debug_make_int_type (minfo->dhandle, 4, FALSE);
252b5132 4585 *ptype = debug_make_array_type (minfo->dhandle, *ptype, int_type,
b34976b6 4586 0, high, FALSE);
252b5132
RH		 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);
b34976b6 4601 return FALSE;
252b5132
RH		 4602 }
4603 if (i >= minfo->typestring_count)
4604 {
4605 stab_bad_demangle (orig);
b34976b6 4606 return FALSE;
252b5132
RH		 4607 }
4608 p = minfo->typestrings[i].typestring;
4609 if (! stab_demangle_type (minfo, &p, ptype))
b34976b6 4610 return FALSE;
252b5132
RH		 4611 }
4612 break;
4613
4614 case 'F':
4615 /* A function. */
4616 {
4617 debug_type *args;
b34976b6 4618 bfd_boolean varargs;
252b5132
RH		 4619
4620 ++*pp;
4621 if (! stab_demangle_args (minfo, pp,
4622 (ptype == NULL
4623 ? (debug_type **) NULL
4624 : &args),
4625 (ptype == NULL
b34976b6 4626 ? (bfd_boolean *) NULL
252b5132 4627 : &varargs)))
b34976b6 4628 return FALSE;
252b5132
RH		 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);
b34976b6 4635 return FALSE;
252b5132
RH		 4636 }
4637 ++*pp;
4638 if (! stab_demangle_type (minfo, pp, ptype))
b34976b6 4639 return FALSE;
252b5132
RH		 4640 if (ptype != NULL)
4641 *ptype = debug_make_function_type (minfo->dhandle, *ptype, args,
4642 varargs);
4643
4644 }
4645 break;
4646
4647 case 'M':
4648 case 'O':
4649 {
b34976b6 4650 bfd_boolean memberp, constp, volatilep;
c602a165 4651 debug_type class_type = DEBUG_TYPE_NULL;
252b5132 4652 debug_type *args;
b34976b6 4653 bfd_boolean varargs;
252b5132
RH		 4654 unsigned int n;
4655 const char *name;
4656
4657 memberp = **pp == 'M';
b34976b6
AM		 4658 constp = FALSE;
4659 volatilep = FALSE;
252b5132 4660 args = NULL;
b34976b6 4661 varargs = FALSE;
252b5132
RH		 4662
4663 ++*pp;
3882b010 4664 if (ISDIGIT (**pp))
252b5132 4665 {
c602a165
ILT		 4666 n = stab_demangle_count (pp);
4667 if (strlen (*pp) < n)
4668 {
4669 stab_bad_demangle (orig);
b34976b6 4670 return FALSE;
c602a165
ILT		 4671 }
4672 name = *pp;
4673 *pp += n;
4674
4675 if (ptype != NULL)
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)
b34976b6 4682 return FALSE;
c602a165 4683 }
252b5132 4684 }
c602a165
ILT		 4685 else if (**pp == 'Q')
4686 {
4687 if (! stab_demangle_qualified (minfo, pp,
4688 (ptype == NULL
4689 ? (debug_type *) NULL
4690 : &class_type)))
b34976b6 4691 return FALSE;
c602a165
ILT		 4692 }
4693 else
252b5132
RH		 4694 {
4695 stab_bad_demangle (orig);
b34976b6 4696 return FALSE;
252b5132 4697 }
252b5132
RH		 4698
4699 if (memberp)
4700 {
4701 if (**pp == 'C')
4702 {
b34976b6 4703 constp = TRUE;
252b5132
RH		 4704 ++*pp;
4705 }
4706 else if (**pp == 'V')
4707 {
b34976b6 4708 volatilep = TRUE;
252b5132
RH		 4709 ++*pp;
4710 }
4711 if (**pp != 'F')
4712 {
4713 stab_bad_demangle (orig);
b34976b6 4714 return FALSE;
252b5132
RH		 4715 }
4716 ++*pp;
4717 if (! stab_demangle_args (minfo, pp,
4718 (ptype == NULL
4719 ? (debug_type **) NULL
4720 : &args),
4721 (ptype == NULL
b34976b6 4722 ? (bfd_boolean *) NULL
252b5132 4723 : &varargs)))
b34976b6 4724 return FALSE;
252b5132
RH		 4725 }
4726
4727 if (**pp != '_')
4728 {
4729 stab_bad_demangle (orig);
b34976b6 4730 return FALSE;
252b5132
RH		 4731 }
4732 ++*pp;
4733
4734 if (! stab_demangle_type (minfo, pp, ptype))
b34976b6 4735 return FALSE;
252b5132
RH		 4736
4737 if (ptype != NULL)
4738 {
252b5132
RH		 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))
b34976b6 4756 return FALSE;
252b5132
RH		 4757 break;
4758
4759 case 'C':
4760 ++*pp;
4761 if (! stab_demangle_type (minfo, pp, ptype))
b34976b6 4762 return FALSE;
252b5132
RH		 4763 if (ptype != NULL)
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))
b34976b6 4773 return FALSE;
252b5132
RH		 4774 }
4775 break;
4776
4777 default:
4778 if (! stab_demangle_fund_type (minfo, pp, ptype))
b34976b6 4779 return FALSE;
252b5132
RH		 4780 break;
4781 }
4782
b34976b6 4783 return TRUE;
252b5132
RH		 4784}
4785
4786/* Demangle a fundamental type. If the ptype argument is not NULL,
4787 *ptype is set to the newly allocated type. */
4788
b34976b6 4789static bfd_boolean
2da42df6
AJ		 4790stab_demangle_fund_type (struct stab_demangle_info *minfo, const char **pp,
4791 debug_type *ptype)
252b5132
RH		 4792{
4793 const char *orig;
b34976b6
AM		 4794 bfd_boolean constp, volatilep, unsignedp, signedp;
4795 bfd_boolean done;
252b5132
RH		 4796
4797 orig = *pp;
4798
b34976b6
AM		 4799 constp = FALSE;
4800 volatilep = FALSE;
4801 unsignedp = FALSE;
4802 signedp = FALSE;
252b5132 4803
b34976b6 4804 done = FALSE;
252b5132
RH		 4805 while (! done)
4806 {
4807 switch (**pp)
4808 {
4809 case 'C':
b34976b6 4810 constp = TRUE;
252b5132
RH		 4811 ++*pp;
4812 break;
4813
4814 case 'U':
b34976b6 4815 unsignedp = TRUE;
252b5132
RH		 4816 ++*pp;
4817 break;
4818
4819 case 'S':
b34976b6 4820 signedp = TRUE;
252b5132
RH		 4821 ++*pp;
4822 break;
4823
4824 case 'V':
b34976b6 4825 volatilep = TRUE;
252b5132
RH		 4826 ++*pp;
4827 break;
4828
4829 default:
b34976b6 4830 done = TRUE;
252b5132
RH		 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)
4845 {
4846 *ptype = debug_find_named_type (minfo->dhandle, "void");
4847 if (*ptype == DEBUG_TYPE_NULL)
4848 *ptype = debug_make_void_type (minfo->dhandle);
4849 }
4850 ++*pp;
4851 break;
4852
4853 case 'x': /* long long */
4854 if (ptype != NULL)
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)
4861 *ptype = debug_make_int_type (minfo->dhandle, 8, unsignedp);
4862 }
4863 ++*pp;
4864 break;
4865
4866 case 'l': /* long */
4867 if (ptype != NULL)
4868 {
4869 *ptype = debug_find_named_type (minfo->dhandle,
4870 (unsignedp
4871 ? "long unsigned int"
4872 : "long int"));
4873 if (*ptype == DEBUG_TYPE_NULL)
4874 *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp);
4875 }
4876 ++*pp;
4877 break;
4878
4879 case 'i': /* int */
4880 if (ptype != NULL)
4881 {
4882 *ptype = debug_find_named_type (minfo->dhandle,
4883 (unsignedp
4884 ? "unsigned int"
4885 : "int"));
4886 if (*ptype == DEBUG_TYPE_NULL)
4887 *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp);
4888 }
4889 ++*pp;
4890 break;
4891
4892 case 's': /* short */
4893 if (ptype != NULL)
4894 {
4895 *ptype = debug_find_named_type (minfo->dhandle,
4896 (unsignedp
4897 ? "short unsigned int"
4898 : "short int"));
4899 if (*ptype == DEBUG_TYPE_NULL)
4900 *ptype = debug_make_int_type (minfo->dhandle, 2, unsignedp);
4901 }
4902 ++*pp;
4903 break;
4904
4905 case 'b': /* bool */
4906 if (ptype != NULL)
4907 {
4908 *ptype = debug_find_named_type (minfo->dhandle, "bool");
4909 if (*ptype == DEBUG_TYPE_NULL)
4910 *ptype = debug_make_bool_type (minfo->dhandle, 4);
4911 }
4912 ++*pp;
4913 break;
4914
4915 case 'c': /* char */
4916 if (ptype != NULL)
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)
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)
4932 {
4933 *ptype = debug_find_named_type (minfo->dhandle, "__wchar_t");
4934 if (*ptype == DEBUG_TYPE_NULL)
b34976b6 4935 *ptype = debug_make_int_type (minfo->dhandle, 2, TRUE);
252b5132
RH		 4936 }
4937 ++*pp;
4938 break;
4939
4940 case 'r': /* long double */
4941 if (ptype != NULL)
4942 {
4943 *ptype = debug_find_named_type (minfo->dhandle, "long double");
4944 if (*ptype == DEBUG_TYPE_NULL)
4945 *ptype = debug_make_float_type (minfo->dhandle, 8);
4946 }
4947 ++*pp;
4948 break;
4949
4950 case 'd': /* double */
4951 if (ptype != NULL)
4952 {
4953 *ptype = debug_find_named_type (minfo->dhandle, "double");
4954 if (*ptype == DEBUG_TYPE_NULL)
4955 *ptype = debug_make_float_type (minfo->dhandle, 8);
4956 }
4957 ++*pp;
4958 break;
4959
4960 case 'f': /* float */
4961 if (ptype != NULL)
4962 {
4963 *ptype = debug_find_named_type (minfo->dhandle, "float");
4964 if (*ptype == DEBUG_TYPE_NULL)
4965 *ptype = debug_make_float_type (minfo->dhandle, 4);
4966 }
4967 ++*pp;
4968 break;
4969
4970 case 'G':
4971 ++*pp;
3882b010 4972 if (! ISDIGIT (**pp))
252b5132
RH		 4973 {
4974 stab_bad_demangle (orig);
b34976b6 4975 return FALSE;
252b5132
RH		 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))
b34976b6 4984 return FALSE;
252b5132
RH		 4985 if (ptype != NULL)
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)
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)
b34976b6 5000 return FALSE;
252b5132
RH		 5001 }
5002 }
5003 }
5004 break;
5005
5006 case 't':
5007 {
5008 char *name;
5009
5010 if (! stab_demangle_template (minfo, pp,
5011 ptype != NULL ? &name : NULL))
b34976b6 5012 return FALSE;
252b5132
RH		 5013 if (ptype != NULL)
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)
b34976b6 5020 return FALSE;
252b5132
RH		 5021 }
5022 }
5023 break;
5024
5025 default:
5026 stab_bad_demangle (orig);
b34976b6 5027 return FALSE;
252b5132
RH		 5028 }
5029
5030 if (ptype != NULL)
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
b34976b6 5038 return TRUE;
252b5132
RH		 5039}
5040
5041/* Remember a type string in a demangled string. */
5042
b34976b6 5043static bfd_boolean
2da42df6
AJ		 5044stab_demangle_remember_type (struct stab_demangle_info *minfo,
5045 const char *p, int len)
252b5132
RH		 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
b34976b6 5060 return TRUE;
252b5132 5061}
041821e6
ILT		 5062\f
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
5073static debug_type *
5074stab_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;
041821e6
ILT		 5079 debug_type *pargs;
5080
5081 dc = cplus_demangle_v3_components (physname, DMGL_PARAMS | DMGL_ANSI, &mem);
5082 if (dc == NULL)
5083 {
5084 stab_bad_demangle (physname);
5085 return NULL;
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, _("Demangled name is not a function\n"));
5094 free (mem);
5095 return NULL;
5096 }
5097
2b4c4cc4
ILT		 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
5111static debug_type *
5112stab_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
041821e6
ILT		 5120 alloc = 10;
5121 pargs = (debug_type *) xmalloc (alloc * sizeof *pargs);
5122 *pvarargs = FALSE;
5123
5124 count = 0;
5125
2b4c4cc4 5126 for (dc = arglist;
041821e6
ILT		 5127 dc != NULL;
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 {
2b4c4cc4
ILT		 5135 fprintf (stderr, _("Unexpected type in v3 arglist demangling\n"));
5136 free (pargs);
041821e6
ILT		 5137 return NULL;
5138 }
5139
5140 arg = stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.left,
5141 NULL, &varargs);
5142 if (arg == NULL)
5143 {
5144 if (varargs)
5145 {
5146 *pvarargs = TRUE;
5147 continue;
5148 }
2b4c4cc4 5149 free (pargs);
041821e6
ILT		 5150 return NULL;
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;
5164
041821e6
ILT		 5165 return pargs;
5166}
5167
5168/* Convert a struct demangle_component tree describing an argument
5169 type into a debug_type. */
5170
5171static debug_type
5172stab_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)
5179 *pvarargs = FALSE;
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:
041821e6
ILT		 5198 case DEMANGLE_COMPONENT_ARRAY_TYPE:
5199 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
5200 case DEMANGLE_COMPONENT_ARGLIST:
5201 default:
2b4c4cc4
ILT		 5202 fprintf (stderr, _("Unrecognized demangle component %d\n"),
5203 (int) dc->type);
041821e6
ILT		 5204 return NULL;
5205
5206 case DEMANGLE_COMPONENT_NAME:
5207 if (context != NULL)
5208 {
5209 const debug_field *fields;
5210
5211 fields = debug_get_fields (dhandle, context);
5212 if (fields != NULL)
5213 {
5214 /* Try to find this type by looking through the context
5215 class. */
5216 for (; *fields != DEBUG_FIELD_NULL; fields++)
5217 {
5218 debug_type ft;
5219 const char *dn;
5220
5221 ft = debug_get_field_type (dhandle, *fields);
5222 if (ft == NULL)
5223 return NULL;
5224 dn = debug_get_type_name (dhandle, ft);
5225 if (dn != NULL
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);
5238 if (context == NULL)
5239 return NULL;
5240 return stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.right,
5241 context, NULL);
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 | DMGL_ANSI, dc, 20, &alc);
5252 if (p == NULL)
5253 {
5254 fprintf (stderr, _("Failed to print demangled template\n"));
5255 return NULL;
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,
5273 NULL);
5274 if (dt == NULL)
5275 return NULL;
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
2b4c4cc4
ILT		 5294 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
5295 {
5296 debug_type *pargs;
5297 bfd_boolean varargs;
5298
5299 if (dc->u.s_binary.left == NULL)
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,
5309 NULL);
5310 if (dt == NULL)
5311 return NULL;
5312
5313 pargs = stab_demangle_v3_arglist (dhandle, info,
5314 dc->u.s_binary.right,
5315 &varargs);
5316 if (pargs == NULL)
5317 return NULL;
5318
5319 return debug_make_function_type (dhandle, dt, pargs, varargs);
5320 }
5321
041821e6
ILT		 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 | DMGL_ANSI, dc, 20, &alc);
5332 if (p == NULL)
5333 {
5334 fprintf (stderr, _("Couldn't get demangled builtin type\n"));
5335 return NULL;
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, FALSE);
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, FALSE);
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, TRUE);
5356 else if (strcmp (p, "int") == 0)
5357 ret = debug_make_int_type (dhandle, 4, FALSE);
5358 else if (strcmp (p, "unsigned int") == 0)
5359 ret = debug_make_int_type (dhandle, 4, TRUE);
5360 else if (strcmp (p, "long") == 0)
5361 ret = debug_make_int_type (dhandle, 4, FALSE);
5362 else if (strcmp (p, "unsigned long") == 0)
5363 ret = debug_make_int_type (dhandle, 4, TRUE);
5364 else if (strcmp (p, "__int128") == 0)
5365 ret = debug_make_int_type (dhandle, 16, FALSE);
5366 else if (strcmp (p, "unsigned __int128") == 0)
5367 ret = debug_make_int_type (dhandle, 16, TRUE);
5368 else if (strcmp (p, "short") == 0)
5369 ret = debug_make_int_type (dhandle, 2, FALSE);
5370 else if (strcmp (p, "unsigned short") == 0)
5371 ret = debug_make_int_type (dhandle, 2, TRUE);
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, TRUE);
5376 else if (strcmp (p, "long long") == 0)
5377 ret = debug_make_int_type (dhandle, 8, FALSE);
5378 else if (strcmp (p, "unsigned long long") == 0)
5379 ret = debug_make_int_type (dhandle, 8, TRUE);
5380 else if (strcmp (p, "...") == 0)
5381 {
5382 if (pvarargs == NULL)
5383 fprintf (stderr, _("Unexpected demangled varargs\n"));
5384 else
5385 *pvarargs = TRUE;
5386 ret = NULL;
5387 }
5388 else
5389 {
5390 fprintf (stderr, _("Unrecognized demangled builtin type\n"));
5391 ret = NULL;
5392 }
5393
5394 free (p);
5395
5396 return ret;
5397 }
5398 }
5399}
GDB Binutils - Deliverables
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