Commit | Line | Data |
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e1c14599 | 1 | /* stabs.c -- Parse stabs debugging information |
1ff0de45 | 2 | Copyright (C) 1995, 1996 Free Software Foundation, Inc. |
e1c14599 ILT |
3 | Written by Ian Lance Taylor <ian@cygnus.com>. |
4 | ||
5 | This file is part of GNU Binutils. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
22 | /* This file contains code which parses stabs debugging information. | |
23 | The organization of this code is based on the gdb stabs reading | |
24 | code. The job it does is somewhat different, because it is not | |
25 | trying to identify the correct address for anything. */ | |
26 | ||
27 | #include <stdio.h> | |
28 | #include <ctype.h> | |
29 | ||
30 | #include "bfd.h" | |
31 | #include "bucomm.h" | |
32 | #include "libiberty.h" | |
d3023c8f | 33 | #include "demangle.h" |
e1c14599 ILT |
34 | #include "debug.h" |
35 | #include "budbg.h" | |
36 | ||
37 | /* Meaningless definition needs by aout64.h. FIXME. */ | |
38 | #define BYTES_IN_WORD 4 | |
39 | ||
40 | #include "aout/aout64.h" | |
41 | #include "aout/stab_gnu.h" | |
42 | ||
43 | /* The number of predefined XCOFF types. */ | |
44 | ||
45 | #define XCOFF_TYPE_COUNT 34 | |
46 | ||
47 | /* This structure is used as a handle so that the stab parsing doesn't | |
48 | need to use any static variables. */ | |
49 | ||
50 | struct stab_handle | |
51 | { | |
1ff0de45 ILT |
52 | /* True if this is stabs in sections. */ |
53 | boolean sections; | |
e1c14599 ILT |
54 | /* The type of the last stab symbol, so that we can detect N_SO |
55 | pairs. */ | |
56 | int last_type; | |
1ff0de45 ILT |
57 | /* The value of the start of the file, so that we can handle file |
58 | relative N_LBRAC and N_RBRAC symbols. */ | |
59 | bfd_vma file_start_offset; | |
e1c14599 | 60 | /* The offset of the start of the function, so that we can handle |
1ff0de45 | 61 | function relative N_LBRAC and N_RBRAC symbols. */ |
e1c14599 ILT |
62 | bfd_vma function_start_offset; |
63 | /* The version number of gcc which compiled the current compilation | |
64 | unit, 0 if not compiled by gcc. */ | |
65 | int gcc_compiled; | |
66 | /* Whether an N_OPT symbol was seen that was not generated by gcc, | |
67 | so that we can detect the SunPRO compiler. */ | |
68 | boolean n_opt_found; | |
69 | /* The main file name. */ | |
70 | char *main_filename; | |
71 | /* A stack of N_BINCL files. */ | |
72 | struct bincl_file *bincl_stack; | |
73 | /* Whether we are inside a function or not. */ | |
74 | boolean within_function; | |
75 | /* The depth of block nesting. */ | |
76 | int block_depth; | |
77 | /* List of pending variable definitions. */ | |
78 | struct stab_pending_var *pending; | |
79 | /* Number of files for which we have types. */ | |
80 | unsigned int files; | |
81 | /* Lists of types per file. */ | |
82 | struct stab_types **file_types; | |
83 | /* Predefined XCOFF types. */ | |
84 | debug_type xcoff_types[XCOFF_TYPE_COUNT]; | |
85 | /* Undefined tags. */ | |
86 | struct stab_tag *tags; | |
87 | }; | |
88 | ||
89 | /* A list of these structures is used to hold pending variable | |
90 | definitions seen before the N_LBRAC of a block. */ | |
91 | ||
92 | struct stab_pending_var | |
93 | { | |
94 | /* Next pending variable definition. */ | |
95 | struct stab_pending_var *next; | |
96 | /* Name. */ | |
97 | const char *name; | |
98 | /* Type. */ | |
99 | debug_type type; | |
100 | /* Kind. */ | |
101 | enum debug_var_kind kind; | |
102 | /* Value. */ | |
103 | bfd_vma val; | |
104 | }; | |
105 | ||
106 | /* A list of these structures is used to hold the types for a single | |
107 | file. */ | |
108 | ||
109 | struct stab_types | |
110 | { | |
111 | /* Next set of slots for this file. */ | |
112 | struct stab_types *next; | |
113 | /* Types indexed by type number. */ | |
114 | #define STAB_TYPES_SLOTS (16) | |
115 | debug_type types[STAB_TYPES_SLOTS]; | |
116 | }; | |
117 | ||
118 | /* We keep a list of undefined tags that we encounter, so that we can | |
119 | fill them in if the tag is later defined. */ | |
120 | ||
121 | struct stab_tag | |
122 | { | |
123 | /* Next undefined tag. */ | |
124 | struct stab_tag *next; | |
125 | /* Tag name. */ | |
126 | const char *name; | |
127 | /* Type kind. */ | |
128 | enum debug_type_kind kind; | |
129 | /* Slot to hold real type when we discover it. If we don't, we fill | |
130 | in an undefined tag type. */ | |
131 | debug_type slot; | |
132 | /* Indirect type we have created to point at slot. */ | |
133 | debug_type type; | |
134 | }; | |
135 | ||
136 | static char *savestring PARAMS ((const char *, int)); | |
137 | static bfd_vma parse_number PARAMS ((const char **, boolean *)); | |
138 | static void bad_stab PARAMS ((const char *)); | |
139 | static void warn_stab PARAMS ((const char *, const char *)); | |
140 | static boolean parse_stab_string | |
141 | PARAMS ((PTR, struct stab_handle *, int, int, bfd_vma, const char *)); | |
142 | static debug_type parse_stab_type | |
1ff0de45 ILT |
143 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, |
144 | debug_type **)); | |
e1c14599 ILT |
145 | static boolean parse_stab_type_number |
146 | PARAMS ((const char **, int *)); | |
147 | static debug_type parse_stab_range_type | |
1ff0de45 ILT |
148 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, |
149 | const int *)); | |
e1c14599 ILT |
150 | static debug_type parse_stab_sun_builtin_type PARAMS ((PTR, const char **)); |
151 | static debug_type parse_stab_sun_floating_type | |
152 | PARAMS ((PTR, const char **)); | |
153 | static debug_type parse_stab_enum_type PARAMS ((PTR, const char **)); | |
154 | static debug_type parse_stab_struct_type | |
d3023c8f ILT |
155 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, boolean, |
156 | const int *)); | |
e1c14599 ILT |
157 | static boolean parse_stab_baseclasses |
158 | PARAMS ((PTR, struct stab_handle *, const char **, debug_baseclass **)); | |
159 | static boolean parse_stab_struct_fields | |
160 | PARAMS ((PTR, struct stab_handle *, const char **, debug_field **, | |
161 | boolean *)); | |
162 | static boolean parse_stab_cpp_abbrev | |
163 | PARAMS ((PTR, struct stab_handle *, const char **, debug_field *)); | |
164 | static boolean parse_stab_one_struct_field | |
165 | PARAMS ((PTR, struct stab_handle *, const char **, const char *, | |
166 | debug_field *, boolean *)); | |
167 | static boolean parse_stab_members | |
d3023c8f ILT |
168 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, |
169 | const int *, debug_method **)); | |
170 | static debug_type parse_stab_argtypes | |
171 | PARAMS ((PTR, struct stab_handle *, debug_type, const char *, const char *, | |
172 | debug_type, const char *, boolean, boolean, const char **)); | |
e1c14599 ILT |
173 | static boolean parse_stab_tilde_field |
174 | PARAMS ((PTR, struct stab_handle *, const char **, const int *, | |
175 | debug_type *, boolean *)); | |
176 | static debug_type parse_stab_array_type | |
177 | PARAMS ((PTR, struct stab_handle *, const char **, boolean)); | |
178 | static void push_bincl PARAMS ((struct stab_handle *, const char *)); | |
179 | static const char *pop_bincl PARAMS ((struct stab_handle *)); | |
180 | static boolean stab_record_variable | |
181 | PARAMS ((PTR, struct stab_handle *, const char *, debug_type, | |
182 | enum debug_var_kind, bfd_vma)); | |
183 | static boolean stab_emit_pending_vars PARAMS ((PTR, struct stab_handle *)); | |
184 | static debug_type *stab_find_slot | |
185 | PARAMS ((struct stab_handle *, const int *)); | |
186 | static debug_type stab_find_type | |
187 | PARAMS ((PTR, struct stab_handle *, const int *)); | |
188 | static boolean stab_record_type | |
189 | PARAMS ((PTR, struct stab_handle *, const int *, debug_type)); | |
190 | static debug_type stab_xcoff_builtin_type | |
191 | PARAMS ((PTR, struct stab_handle *, int)); | |
d3023c8f ILT |
192 | static debug_type stab_find_tagged_type |
193 | PARAMS ((PTR, struct stab_handle *, const char *, int, | |
194 | enum debug_type_kind)); | |
195 | static debug_type *stab_demangle_argtypes | |
196 | PARAMS ((PTR, struct stab_handle *, const char *)); | |
e1c14599 ILT |
197 | |
198 | /* Save a string in memory. */ | |
199 | ||
200 | static char * | |
201 | savestring (start, len) | |
202 | const char *start; | |
203 | int len; | |
204 | { | |
205 | char *ret; | |
206 | ||
207 | ret = (char *) xmalloc (len + 1); | |
208 | memcpy (ret, start, len); | |
209 | ret[len] = '\0'; | |
210 | return ret; | |
211 | } | |
212 | ||
213 | /* Read a number from a string. */ | |
214 | ||
215 | static bfd_vma | |
216 | parse_number (pp, poverflow) | |
217 | const char **pp; | |
218 | boolean *poverflow; | |
219 | { | |
220 | unsigned long ul; | |
221 | const char *orig; | |
222 | ||
223 | if (poverflow != NULL) | |
224 | *poverflow = false; | |
225 | ||
226 | orig = *pp; | |
227 | ||
228 | errno = 0; | |
229 | ul = strtoul (*pp, (char **) pp, 0); | |
230 | if (ul + 1 != 0 || errno == 0) | |
231 | return (bfd_vma) ul; | |
232 | ||
233 | /* Note that even though strtoul overflowed, it should have set *pp | |
234 | to the end of the number, which is where we want it. */ | |
235 | ||
236 | if (sizeof (bfd_vma) > sizeof (unsigned long)) | |
237 | { | |
238 | const char *p; | |
239 | boolean neg; | |
240 | int base; | |
241 | bfd_vma over, lastdig; | |
242 | boolean overflow; | |
243 | bfd_vma v; | |
244 | ||
245 | /* Our own version of strtoul, for a bfd_vma. */ | |
246 | ||
247 | p = orig; | |
248 | ||
249 | neg = false; | |
250 | if (*p == '+') | |
251 | ++p; | |
252 | else if (*p == '-') | |
253 | { | |
254 | neg = true; | |
255 | ++p; | |
256 | } | |
257 | ||
258 | base = 10; | |
259 | if (*p == '0') | |
260 | { | |
261 | if (p[1] == 'x' || p[1] == 'X') | |
262 | { | |
263 | base = 16; | |
264 | p += 2; | |
265 | } | |
266 | else | |
267 | { | |
268 | base = 8; | |
269 | ++p; | |
270 | } | |
271 | } | |
272 | ||
273 | over = ((bfd_vma) (bfd_signed_vma) -1) / (bfd_vma) base; | |
274 | lastdig = ((bfd_vma) (bfd_signed_vma) -1) % (bfd_vma) base; | |
275 | ||
276 | overflow = false; | |
277 | v = 0; | |
278 | while (1) | |
279 | { | |
280 | int d; | |
281 | ||
282 | d = *p++; | |
283 | if (isdigit ((unsigned char) d)) | |
284 | d -= '0'; | |
285 | else if (isupper ((unsigned char) d)) | |
286 | d -= 'A'; | |
287 | else if (islower ((unsigned char) d)) | |
288 | d -= 'a'; | |
289 | else | |
290 | break; | |
291 | ||
292 | if (d >= base) | |
293 | break; | |
294 | ||
295 | if (v > over || (v == over && (bfd_vma) d > lastdig)) | |
296 | { | |
297 | overflow = true; | |
298 | break; | |
299 | } | |
300 | } | |
301 | ||
302 | if (! overflow) | |
303 | { | |
304 | if (neg) | |
305 | v = - v; | |
306 | return v; | |
307 | } | |
308 | } | |
309 | ||
310 | /* If we get here, the number is too large to represent in a | |
311 | bfd_vma. */ | |
312 | ||
313 | if (poverflow != NULL) | |
314 | *poverflow = true; | |
315 | else | |
316 | warn_stab (orig, "numeric overflow"); | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
321 | /* Give an error for a bad stab string. */ | |
322 | ||
323 | static void | |
324 | bad_stab (p) | |
325 | const char *p; | |
326 | { | |
327 | fprintf (stderr, "Bad stab: %s\n", p); | |
328 | } | |
329 | ||
330 | /* Warn about something in a stab string. */ | |
331 | ||
332 | static void | |
333 | warn_stab (p, err) | |
334 | const char *p; | |
335 | const char *err; | |
336 | { | |
337 | fprintf (stderr, "Warning: %s: %s\n", err, p); | |
338 | } | |
339 | ||
340 | /* Create a handle to parse stabs symbols with. */ | |
341 | ||
342 | /*ARGSUSED*/ | |
343 | PTR | |
1ff0de45 | 344 | start_stab (dhandle, sections) |
e1c14599 | 345 | PTR dhandle; |
1ff0de45 | 346 | boolean sections; |
e1c14599 ILT |
347 | { |
348 | struct stab_handle *ret; | |
349 | ||
350 | ret = (struct stab_handle *) xmalloc (sizeof *ret); | |
351 | memset (ret, 0, sizeof *ret); | |
1ff0de45 | 352 | ret->sections = sections; |
e1c14599 ILT |
353 | ret->files = 1; |
354 | ret->file_types = (struct stab_types **) xmalloc (sizeof *ret->file_types); | |
355 | ret->file_types[0] = NULL; | |
356 | return (PTR) ret; | |
357 | } | |
358 | ||
359 | /* When we have processed all the stabs information, we need to go | |
360 | through and fill in all the undefined tags. */ | |
361 | ||
362 | boolean | |
363 | finish_stab (dhandle, handle) | |
364 | PTR dhandle; | |
365 | PTR handle; | |
366 | { | |
367 | struct stab_handle *info = (struct stab_handle *) handle; | |
368 | struct stab_tag *st; | |
369 | ||
370 | if (info->within_function) | |
371 | { | |
372 | if (! debug_end_function (dhandle, (bfd_vma) -1)) | |
373 | return false; | |
374 | info->within_function = false; | |
375 | } | |
376 | ||
377 | for (st = info->tags; st != NULL; st = st->next) | |
378 | { | |
d3023c8f ILT |
379 | enum debug_type_kind kind; |
380 | ||
381 | kind = st->kind; | |
382 | if (kind == DEBUG_KIND_ILLEGAL) | |
383 | kind = DEBUG_KIND_STRUCT; | |
384 | st->slot = debug_make_undefined_tagged_type (dhandle, st->name, kind); | |
e1c14599 ILT |
385 | if (st->slot == DEBUG_TYPE_NULL) |
386 | return false; | |
387 | } | |
388 | ||
d3023c8f ILT |
389 | if (info->pending) |
390 | fprintf (stderr, "Left over pending variables in stabs debugging\n"); | |
391 | ||
e1c14599 ILT |
392 | return true; |
393 | } | |
394 | ||
395 | /* Handle a single stabs symbol. */ | |
396 | ||
397 | boolean | |
398 | parse_stab (dhandle, handle, type, desc, value, string) | |
399 | PTR dhandle; | |
400 | PTR handle; | |
401 | int type; | |
402 | int desc; | |
403 | bfd_vma value; | |
404 | const char *string; | |
405 | { | |
406 | struct stab_handle *info = (struct stab_handle *) handle; | |
407 | ||
408 | switch (type) | |
409 | { | |
410 | case N_FN: | |
411 | case N_FN_SEQ: | |
412 | break; | |
413 | ||
414 | case N_LBRAC: | |
415 | /* Ignore extra outermost context from SunPRO cc and acc. */ | |
416 | if (info->n_opt_found && desc == 1) | |
417 | break; | |
418 | ||
419 | if (! info->within_function) | |
420 | { | |
421 | fprintf (stderr, "N_LBRAC not within function\n"); | |
422 | return false; | |
423 | } | |
424 | ||
425 | /* Start an inner lexical block. */ | |
1ff0de45 ILT |
426 | if (! debug_start_block (dhandle, |
427 | (value | |
428 | + info->file_start_offset | |
429 | + info->function_start_offset))) | |
e1c14599 ILT |
430 | return false; |
431 | ||
432 | /* Emit any pending variable definitions. */ | |
433 | if (! stab_emit_pending_vars (dhandle, info)) | |
434 | return false; | |
435 | ||
436 | ++info->block_depth; | |
437 | break; | |
438 | ||
439 | case N_RBRAC: | |
440 | /* Ignore extra outermost context from SunPRO cc and acc. */ | |
441 | if (info->n_opt_found && desc == 1) | |
442 | break; | |
443 | ||
444 | /* We shouldn't have any pending variable definitions here, but, | |
445 | if we do, we probably need to emit them before closing the | |
446 | block. */ | |
447 | if (! stab_emit_pending_vars (dhandle, info)) | |
448 | return false; | |
449 | ||
450 | /* End an inner lexical block. */ | |
1ff0de45 ILT |
451 | if (! debug_end_block (dhandle, |
452 | (value | |
453 | + info->file_start_offset | |
454 | + info->function_start_offset))) | |
e1c14599 ILT |
455 | return false; |
456 | ||
457 | --info->block_depth; | |
d3023c8f | 458 | if (info->block_depth < 0) |
e1c14599 | 459 | { |
d3023c8f ILT |
460 | fprintf (stderr, "Too many N_RBRACs\n"); |
461 | return false; | |
e1c14599 ILT |
462 | } |
463 | break; | |
464 | ||
465 | case N_SO: | |
466 | /* Start a file. If we get two in a row, the first is the | |
467 | directory name. An empty string is emitted by gcc at the end | |
468 | of a compilation unit. */ | |
469 | if (*string == '\0') | |
470 | { | |
471 | if (info->within_function) | |
472 | { | |
d3023c8f | 473 | if (! debug_end_function (dhandle, value)) |
e1c14599 ILT |
474 | return false; |
475 | info->within_function = false; | |
476 | } | |
477 | return true; | |
478 | } | |
479 | info->gcc_compiled = 0; | |
480 | info->n_opt_found = false; | |
481 | if (info->last_type == N_SO) | |
482 | { | |
483 | char *o; | |
484 | ||
485 | if (! debug_append_filename (dhandle, string)) | |
486 | return false; | |
487 | o = info->main_filename; | |
488 | info->main_filename = concat (o, string, (const char *) NULL); | |
489 | free (o); | |
490 | } | |
491 | else | |
492 | { | |
1ff0de45 ILT |
493 | if (info->within_function) |
494 | { | |
d3023c8f | 495 | if (! debug_end_function (dhandle, value)) |
1ff0de45 ILT |
496 | return false; |
497 | info->within_function = false; | |
498 | } | |
e1c14599 ILT |
499 | if (! debug_set_filename (dhandle, string)) |
500 | return false; | |
501 | if (info->main_filename != NULL) | |
502 | free (info->main_filename); | |
503 | info->main_filename = xstrdup (string); | |
504 | ||
1ff0de45 ILT |
505 | /* Generally, for stabs in the symbol table, the N_LBRAC and |
506 | N_RBRAC symbols are relative to the N_SO symbol value. */ | |
507 | if (! info->sections) | |
508 | info->file_start_offset = value; | |
509 | ||
e1c14599 ILT |
510 | /* We need to reset the mapping from type numbers to types. |
511 | We can't free the old mapping, because of the use of | |
512 | debug_make_indirect_type. */ | |
513 | info->files = 1; | |
514 | info->file_types = ((struct stab_types **) | |
515 | xmalloc (sizeof *info->file_types)); | |
516 | info->file_types[0] = NULL; | |
517 | } | |
518 | break; | |
519 | ||
520 | case N_SOL: | |
521 | /* Start an include file. */ | |
522 | if (! debug_start_source (dhandle, string)) | |
523 | return false; | |
524 | break; | |
525 | ||
526 | case N_BINCL: | |
527 | /* Start an include file which may be replaced. */ | |
528 | push_bincl (info, string); | |
529 | if (! debug_start_source (dhandle, string)) | |
530 | return false; | |
531 | break; | |
532 | ||
533 | case N_EINCL: | |
534 | /* End an N_BINCL include. */ | |
535 | if (! debug_start_source (dhandle, pop_bincl (info))) | |
536 | return false; | |
537 | break; | |
538 | ||
539 | case N_EXCL: | |
540 | /* This is a duplicate of a header file named by N_BINCL which | |
541 | was eliminated by the linker. */ | |
542 | ++info->files; | |
543 | info->file_types = ((struct stab_types **) | |
544 | xrealloc ((PTR) info->file_types, | |
545 | (info->files | |
546 | * sizeof *info->file_types))); | |
547 | info->file_types[info->files - 1] = NULL; | |
548 | break; | |
549 | ||
550 | case N_SLINE: | |
551 | if (! debug_record_line (dhandle, desc, | |
552 | value + info->function_start_offset)) | |
553 | return false; | |
554 | break; | |
555 | ||
556 | case N_BCOMM: | |
557 | if (! debug_start_common_block (dhandle, string)) | |
558 | return false; | |
559 | break; | |
560 | ||
561 | case N_ECOMM: | |
562 | if (! debug_end_common_block (dhandle, string)) | |
563 | return false; | |
564 | break; | |
565 | ||
566 | /* FIXME: gdb checks the string for N_STSYM, N_LCSYM or N_ROSYM | |
567 | symbols, and if it does not start with :S, gdb relocates the | |
568 | value to the start of the section. gcc always seems to use | |
569 | :S, so we don't worry about this. */ | |
570 | default: | |
571 | { | |
572 | const char *colon; | |
573 | ||
574 | colon = strchr (string, ':'); | |
575 | if (colon != NULL | |
576 | && (colon[1] == 'f' || colon[1] == 'F')) | |
577 | { | |
578 | if (info->within_function) | |
579 | { | |
d3023c8f | 580 | if (! debug_end_function (dhandle, value)) |
e1c14599 ILT |
581 | return false; |
582 | } | |
1ff0de45 ILT |
583 | /* For stabs in sections, line numbers and block addresses |
584 | are offsets from the start of the function. */ | |
585 | if (info->sections) | |
586 | info->function_start_offset = value; | |
e1c14599 ILT |
587 | info->within_function = true; |
588 | } | |
589 | ||
590 | if (! parse_stab_string (dhandle, info, type, desc, value, string)) | |
591 | return false; | |
592 | } | |
593 | break; | |
594 | ||
595 | case N_OPT: | |
596 | if (string != NULL && strcmp (string, "gcc2_compiled.") == 0) | |
597 | info->gcc_compiled = 2; | |
598 | else if (string != NULL && strcmp (string, "gcc_compiled.") == 0) | |
599 | info->gcc_compiled = 1; | |
600 | else | |
601 | info->n_opt_found = true; | |
602 | break; | |
603 | ||
604 | case N_OBJ: | |
605 | case N_ENDM: | |
606 | case N_MAIN: | |
607 | break; | |
608 | } | |
609 | ||
610 | info->last_type = type; | |
611 | ||
612 | return true; | |
613 | } | |
614 | ||
615 | /* Parse the stabs string. */ | |
616 | ||
617 | static boolean | |
618 | parse_stab_string (dhandle, info, stabtype, desc, value, string) | |
619 | PTR dhandle; | |
620 | struct stab_handle *info; | |
621 | int stabtype; | |
622 | int desc; | |
623 | bfd_vma value; | |
624 | const char *string; | |
625 | { | |
626 | const char *p; | |
627 | char *name; | |
628 | int type; | |
629 | debug_type dtype; | |
630 | boolean synonym; | |
631 | unsigned int lineno; | |
632 | debug_type *slot; | |
633 | ||
634 | p = strchr (string, ':'); | |
635 | if (p == NULL) | |
636 | return true; | |
637 | ||
638 | while (p[1] == ':') | |
639 | { | |
640 | p += 2; | |
641 | p = strchr (p, ':'); | |
642 | if (p == NULL) | |
643 | { | |
644 | bad_stab (string); | |
645 | return false; | |
646 | } | |
647 | } | |
648 | ||
649 | /* GCC 2.x puts the line number in desc. SunOS apparently puts in | |
650 | the number of bytes occupied by a type or object, which we | |
651 | ignore. */ | |
652 | if (info->gcc_compiled >= 2) | |
653 | lineno = desc; | |
654 | else | |
655 | lineno = 0; | |
656 | ||
657 | /* FIXME: Sometimes the special C++ names start with '.'. */ | |
658 | name = NULL; | |
659 | if (string[0] == '$') | |
660 | { | |
661 | switch (string[1]) | |
662 | { | |
663 | case 't': | |
664 | name = "this"; | |
665 | break; | |
666 | case 'v': | |
667 | /* Was: name = "vptr"; */ | |
668 | break; | |
669 | case 'e': | |
670 | name = "eh_throw"; | |
671 | break; | |
672 | case '_': | |
673 | /* This was an anonymous type that was never fixed up. */ | |
674 | break; | |
675 | case 'X': | |
676 | /* SunPRO (3.0 at least) static variable encoding. */ | |
677 | break; | |
678 | default: | |
679 | warn_stab (string, "unknown C++ encoded name"); | |
680 | break; | |
681 | } | |
682 | } | |
683 | ||
684 | if (name == NULL) | |
685 | { | |
686 | if (p == string || (string[0] == ' ' && p == string + 1)) | |
687 | name = NULL; | |
688 | else | |
689 | name = savestring (string, p - string); | |
690 | } | |
691 | ||
692 | ++p; | |
693 | if (isdigit ((unsigned char) *p) || *p == '(' || *p == '-') | |
694 | type = 'l'; | |
695 | else | |
696 | type = *p++; | |
697 | ||
698 | switch (type) | |
699 | { | |
700 | case 'c': | |
701 | /* c is a special case, not followed by a type-number. | |
702 | SYMBOL:c=iVALUE for an integer constant symbol. | |
703 | SYMBOL:c=rVALUE for a floating constant symbol. | |
704 | SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol. | |
705 | e.g. "b:c=e6,0" for "const b = blob1" | |
706 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ | |
707 | if (*p != '=') | |
708 | { | |
709 | bad_stab (string); | |
710 | return false; | |
711 | } | |
712 | ++p; | |
713 | switch (*p++) | |
714 | { | |
715 | case 'r': | |
716 | /* Floating point constant. */ | |
717 | if (! debug_record_float_const (dhandle, name, atof (p))) | |
718 | return false; | |
719 | break; | |
720 | case 'i': | |
721 | /* Integer constant. */ | |
722 | /* Defining integer constants this way is kind of silly, | |
723 | since 'e' constants allows the compiler to give not only | |
724 | the value, but the type as well. C has at least int, | |
725 | long, unsigned int, and long long as constant types; | |
726 | other languages probably should have at least unsigned as | |
727 | well as signed constants. */ | |
728 | if (! debug_record_int_const (dhandle, name, atoi (p))) | |
729 | return false; | |
730 | break; | |
731 | case 'e': | |
732 | /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value | |
733 | can be represented as integral. | |
734 | e.g. "b:c=e6,0" for "const b = blob1" | |
735 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ | |
1ff0de45 ILT |
736 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, |
737 | &p, (debug_type **) NULL); | |
e1c14599 ILT |
738 | if (dtype == DEBUG_TYPE_NULL) |
739 | return false; | |
740 | if (*p != ',') | |
741 | { | |
742 | bad_stab (string); | |
743 | return false; | |
744 | } | |
745 | if (! debug_record_typed_const (dhandle, name, dtype, atoi (p))) | |
746 | return false; | |
747 | break; | |
748 | default: | |
749 | bad_stab (string); | |
750 | return false; | |
751 | } | |
752 | ||
753 | break; | |
754 | ||
755 | case 'C': | |
756 | /* The name of a caught exception. */ | |
1ff0de45 ILT |
757 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, |
758 | &p, (debug_type **) NULL); | |
e1c14599 ILT |
759 | if (dtype == DEBUG_TYPE_NULL) |
760 | return false; | |
761 | if (! debug_record_label (dhandle, name, dtype, value)) | |
762 | return false; | |
763 | break; | |
764 | ||
765 | case 'f': | |
766 | case 'F': | |
767 | /* A function definition. */ | |
1ff0de45 ILT |
768 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
769 | (debug_type **) NULL); | |
e1c14599 ILT |
770 | if (dtype == DEBUG_TYPE_NULL) |
771 | return false; | |
772 | if (! debug_record_function (dhandle, name, dtype, type == 'F', value)) | |
773 | return false; | |
774 | ||
775 | /* Sun acc puts declared types of arguments here. We don't care | |
776 | about their actual types (FIXME -- we should remember the whole | |
777 | function prototype), but the list may define some new types | |
778 | that we have to remember, so we must scan it now. */ | |
779 | while (*p == ';') | |
780 | { | |
781 | ++p; | |
1ff0de45 ILT |
782 | if (parse_stab_type (dhandle, info, (const char *) NULL, &p, |
783 | (debug_type **) NULL) | |
e1c14599 ILT |
784 | == DEBUG_TYPE_NULL) |
785 | return false; | |
786 | } | |
787 | ||
788 | break; | |
789 | ||
790 | case 'G': | |
791 | /* A global symbol. The value must be extracted from the symbol | |
792 | table. */ | |
1ff0de45 ILT |
793 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
794 | (debug_type **) NULL); | |
e1c14599 ILT |
795 | if (dtype == DEBUG_TYPE_NULL) |
796 | return false; | |
797 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_GLOBAL, | |
798 | (bfd_vma) -1)) | |
799 | return false; | |
800 | break; | |
801 | ||
802 | /* This case is faked by a conditional above, when there is no | |
803 | code letter in the dbx data. Dbx data never actually | |
804 | contains 'l'. */ | |
805 | case 'l': | |
806 | case 's': | |
1ff0de45 ILT |
807 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
808 | (debug_type **) NULL); | |
e1c14599 ILT |
809 | if (dtype == DEBUG_TYPE_NULL) |
810 | return false; | |
811 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL, | |
812 | value)) | |
813 | return false; | |
814 | break; | |
815 | ||
816 | case 'p': | |
817 | /* A function parameter. */ | |
818 | if (*p != 'F') | |
1ff0de45 ILT |
819 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
820 | (debug_type **) NULL); | |
e1c14599 ILT |
821 | else |
822 | { | |
823 | /* pF is a two-letter code that means a function parameter in | |
824 | Fortran. The type-number specifies the type of the return | |
825 | value. Translate it into a pointer-to-function type. */ | |
826 | ++p; | |
1ff0de45 ILT |
827 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
828 | (debug_type **) NULL); | |
e1c14599 ILT |
829 | if (dtype != DEBUG_TYPE_NULL) |
830 | dtype = debug_make_pointer_type (dhandle, | |
831 | debug_make_function_type (dhandle, | |
832 | dtype)); | |
833 | } | |
834 | if (dtype == DEBUG_TYPE_NULL) | |
835 | return false; | |
836 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_STACK, | |
837 | value)) | |
838 | return false; | |
839 | ||
840 | /* FIXME: At this point gdb considers rearranging the parameter | |
841 | address on a big endian machine if it is smaller than an int. | |
842 | We have no way to do that, since we don't really know much | |
843 | about the target. */ | |
844 | ||
845 | break; | |
846 | ||
847 | case 'P': | |
848 | if (stabtype == N_FUN) | |
849 | { | |
850 | /* Prototype of a function referenced by this file. */ | |
851 | while (*p == ';') | |
852 | { | |
853 | ++p; | |
1ff0de45 ILT |
854 | if (parse_stab_type (dhandle, info, (const char *) NULL, &p, |
855 | (debug_type **) NULL) | |
e1c14599 ILT |
856 | == DEBUG_TYPE_NULL) |
857 | return false; | |
858 | } | |
859 | break; | |
860 | } | |
861 | /* Fall through. */ | |
862 | case 'R': | |
863 | /* Parameter which is in a register. */ | |
1ff0de45 ILT |
864 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
865 | (debug_type **) NULL); | |
e1c14599 ILT |
866 | if (dtype == DEBUG_TYPE_NULL) |
867 | return false; | |
868 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REG, | |
869 | value)) | |
870 | return false; | |
871 | break; | |
872 | ||
873 | case 'r': | |
874 | /* Register variable (either global or local). */ | |
1ff0de45 ILT |
875 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
876 | (debug_type **) NULL); | |
e1c14599 ILT |
877 | if (dtype == DEBUG_TYPE_NULL) |
878 | return false; | |
879 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_REGISTER, | |
880 | value)) | |
881 | return false; | |
882 | ||
883 | /* FIXME: At this point gdb checks to combine pairs of 'p' and | |
884 | 'r' stabs into a single 'P' stab. */ | |
885 | ||
886 | break; | |
887 | ||
888 | case 'S': | |
889 | /* Static symbol at top level of file */ | |
1ff0de45 ILT |
890 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
891 | (debug_type **) NULL); | |
e1c14599 ILT |
892 | if (dtype == DEBUG_TYPE_NULL) |
893 | return false; | |
894 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_STATIC, | |
895 | value)) | |
896 | return false; | |
897 | break; | |
898 | ||
899 | case 't': | |
900 | /* A typedef. */ | |
1ff0de45 | 901 | dtype = parse_stab_type (dhandle, info, name, &p, &slot); |
e1c14599 ILT |
902 | if (dtype == DEBUG_TYPE_NULL) |
903 | return false; | |
904 | if (name == NULL) | |
905 | { | |
906 | /* A nameless type. Nothing to do. */ | |
907 | return true; | |
908 | } | |
909 | ||
910 | dtype = debug_name_type (dhandle, name, dtype); | |
911 | if (dtype == DEBUG_TYPE_NULL) | |
912 | return false; | |
913 | ||
914 | if (slot != NULL) | |
915 | *slot = dtype; | |
916 | ||
917 | break; | |
918 | ||
919 | case 'T': | |
920 | /* Struct, union, or enum tag. For GNU C++, this can be be followed | |
921 | by 't' which means we are typedef'ing it as well. */ | |
922 | if (*p != 't') | |
923 | { | |
924 | synonym = false; | |
925 | /* FIXME: gdb sets synonym to true if the current language | |
926 | is C++. */ | |
927 | } | |
928 | else | |
929 | { | |
930 | synonym = true; | |
931 | ++p; | |
932 | } | |
933 | ||
d3023c8f | 934 | dtype = parse_stab_type (dhandle, info, name, &p, &slot); |
e1c14599 ILT |
935 | if (dtype == DEBUG_TYPE_NULL) |
936 | return false; | |
937 | if (name == NULL) | |
938 | return true; | |
939 | ||
940 | dtype = debug_tag_type (dhandle, name, dtype); | |
941 | if (dtype == DEBUG_TYPE_NULL) | |
942 | return false; | |
943 | if (slot != NULL) | |
944 | *slot = dtype; | |
945 | ||
946 | /* See if we have a cross reference to this tag which we can now | |
947 | fill in. */ | |
948 | { | |
949 | register struct stab_tag **pst; | |
950 | ||
951 | for (pst = &info->tags; *pst != NULL; pst = &(*pst)->next) | |
952 | { | |
953 | if ((*pst)->name[0] == name[0] | |
954 | && strcmp ((*pst)->name, name) == 0) | |
955 | { | |
956 | (*pst)->slot = dtype; | |
957 | *pst = (*pst)->next; | |
958 | break; | |
959 | } | |
960 | } | |
961 | } | |
962 | ||
963 | if (synonym) | |
964 | { | |
965 | dtype = debug_name_type (dhandle, name, dtype); | |
966 | if (dtype == DEBUG_TYPE_NULL) | |
967 | return false; | |
968 | ||
969 | if (slot != NULL) | |
970 | *slot = dtype; | |
971 | } | |
972 | ||
973 | break; | |
974 | ||
975 | case 'V': | |
976 | /* Static symbol of local scope */ | |
1ff0de45 ILT |
977 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
978 | (debug_type **) NULL); | |
e1c14599 ILT |
979 | if (dtype == DEBUG_TYPE_NULL) |
980 | return false; | |
981 | /* FIXME: gdb checks os9k_stabs here. */ | |
982 | if (! stab_record_variable (dhandle, info, name, dtype, | |
983 | DEBUG_LOCAL_STATIC, value)) | |
984 | return false; | |
985 | break; | |
986 | ||
987 | case 'v': | |
988 | /* Reference parameter. */ | |
1ff0de45 ILT |
989 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
990 | (debug_type **) NULL); | |
e1c14599 ILT |
991 | if (dtype == DEBUG_TYPE_NULL) |
992 | return false; | |
993 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REFERENCE, | |
994 | value)) | |
995 | return false; | |
996 | break; | |
997 | ||
998 | case 'a': | |
999 | /* Reference parameter which is in a register. */ | |
1ff0de45 ILT |
1000 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
1001 | (debug_type **) NULL); | |
e1c14599 ILT |
1002 | if (dtype == DEBUG_TYPE_NULL) |
1003 | return false; | |
1004 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REF_REG, | |
1005 | value)) | |
1006 | return false; | |
1007 | break; | |
1008 | ||
1009 | case 'X': | |
1010 | /* This is used by Sun FORTRAN for "function result value". | |
1011 | Sun claims ("dbx and dbxtool interfaces", 2nd ed) | |
1012 | that Pascal uses it too, but when I tried it Pascal used | |
1013 | "x:3" (local symbol) instead. */ | |
1ff0de45 ILT |
1014 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
1015 | (debug_type **) NULL); | |
e1c14599 ILT |
1016 | if (dtype == DEBUG_TYPE_NULL) |
1017 | return false; | |
1018 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL, | |
1019 | value)) | |
1020 | return false; | |
1021 | break; | |
1022 | ||
1023 | default: | |
1024 | bad_stab (string); | |
1025 | return false; | |
1026 | } | |
1027 | ||
1028 | /* FIXME: gdb converts structure values to structure pointers in a | |
1029 | couple of cases, depending upon the target. */ | |
1030 | ||
1031 | return true; | |
1032 | } | |
1033 | ||
1ff0de45 | 1034 | /* Parse a stabs type. The typename argument is non-NULL if this is a |
d3023c8f ILT |
1035 | typedef or a tag definition. The pp argument points to the stab |
1036 | string, and is updated. The slotp argument points to a place to | |
1037 | store the slot used if the type is being defined. */ | |
e1c14599 ILT |
1038 | |
1039 | static debug_type | |
1ff0de45 | 1040 | parse_stab_type (dhandle, info, typename, pp, slotp) |
e1c14599 ILT |
1041 | PTR dhandle; |
1042 | struct stab_handle *info; | |
1ff0de45 | 1043 | const char *typename; |
e1c14599 ILT |
1044 | const char **pp; |
1045 | debug_type **slotp; | |
1046 | { | |
1047 | const char *orig; | |
1048 | int typenums[2]; | |
1049 | int size; | |
1050 | boolean stringp; | |
1051 | int descriptor; | |
1052 | debug_type dtype; | |
1053 | ||
1054 | if (slotp != NULL) | |
1055 | *slotp = NULL; | |
1056 | ||
1057 | orig = *pp; | |
1058 | ||
1059 | size = -1; | |
1060 | stringp = false; | |
1061 | ||
1062 | /* Read type number if present. The type number may be omitted. | |
1063 | for instance in a two-dimensional array declared with type | |
1064 | "ar1;1;10;ar1;1;10;4". */ | |
1065 | if (! isdigit ((unsigned char) **pp) && **pp != '(' && **pp != '-') | |
1066 | { | |
1067 | /* 'typenums=' not present, type is anonymous. Read and return | |
1068 | the definition, but don't put it in the type vector. */ | |
1069 | typenums[0] = typenums[1] = -1; | |
1070 | } | |
1071 | else | |
1072 | { | |
1073 | if (! parse_stab_type_number (pp, typenums)) | |
1074 | return DEBUG_TYPE_NULL; | |
1075 | ||
1076 | if (**pp != '=') | |
1077 | { | |
1078 | /* Type is not being defined here. Either it already | |
1079 | exists, or this is a forward reference to it. */ | |
1080 | return stab_find_type (dhandle, info, typenums); | |
1081 | } | |
1082 | ||
1083 | /* Only set the slot if the type is being defined. This means | |
1084 | that the mapping from type numbers to types will only record | |
1085 | the name of the typedef which defines a type. If we don't do | |
1086 | this, then something like | |
1087 | typedef int foo; | |
1088 | int i; | |
1089 | will record that i is of type foo. Unfortunately, stabs | |
1090 | information is ambiguous about variable types. For this code, | |
1091 | typedef int foo; | |
1092 | int i; | |
1093 | foo j; | |
1094 | the stabs information records both i and j as having the same | |
1095 | type. This could be fixed by patching the compiler. */ | |
1096 | if (slotp != NULL && typenums[0] >= 0 && typenums[1] >= 0) | |
1097 | *slotp = stab_find_slot (info, typenums); | |
1098 | ||
1099 | /* Type is being defined here. */ | |
1100 | /* Skip the '='. */ | |
1101 | ++*pp; | |
1102 | ||
1103 | while (**pp == '@') | |
1104 | { | |
1105 | const char *p = *pp + 1; | |
1106 | const char *attr; | |
1107 | ||
1108 | if (isdigit ((unsigned char) *p) || *p == '(' || *p == '-') | |
1109 | { | |
1110 | /* Member type. */ | |
1111 | break; | |
1112 | } | |
1113 | ||
1114 | /* Type attributes. */ | |
1115 | attr = p; | |
1116 | ||
1117 | for (; *p != ';'; ++p) | |
1118 | { | |
1119 | if (*p == '\0') | |
1120 | { | |
1121 | bad_stab (orig); | |
1122 | return DEBUG_TYPE_NULL; | |
1123 | } | |
1124 | } | |
1125 | *pp = p + 1; | |
1126 | ||
1127 | switch (*attr) | |
1128 | { | |
1129 | case 's': | |
1130 | size = atoi (attr + 1); | |
1131 | if (size <= 0) | |
1132 | size = -1; | |
1133 | break; | |
1134 | ||
1135 | case 'S': | |
1136 | stringp = true; | |
1137 | break; | |
1138 | ||
1139 | default: | |
1140 | /* Ignore unrecognized type attributes, so future | |
1141 | compilers can invent new ones. */ | |
1142 | break; | |
1143 | } | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | descriptor = **pp; | |
1148 | ++*pp; | |
1149 | ||
1150 | switch (descriptor) | |
1151 | { | |
1152 | case 'x': | |
1153 | { | |
1154 | enum debug_type_kind code; | |
1155 | const char *q1, *q2, *p; | |
e1c14599 ILT |
1156 | |
1157 | /* A cross reference to another type. */ | |
1158 | ||
1159 | switch (**pp) | |
1160 | { | |
1161 | case 's': | |
1162 | code = DEBUG_KIND_STRUCT; | |
1163 | break; | |
1164 | case 'u': | |
1165 | code = DEBUG_KIND_UNION; | |
1166 | break; | |
1167 | case 'e': | |
1168 | code = DEBUG_KIND_ENUM; | |
1169 | break; | |
1170 | default: | |
1171 | /* Complain and keep going, so compilers can invent new | |
1172 | cross-reference types. */ | |
1173 | warn_stab (orig, "unrecognized cross reference type"); | |
1174 | code = DEBUG_KIND_STRUCT; | |
1175 | break; | |
1176 | } | |
1177 | ++*pp; | |
1178 | ||
1179 | q1 = strchr (*pp, '<'); | |
1180 | p = strchr (*pp, ':'); | |
1181 | if (p == NULL) | |
1182 | { | |
1183 | bad_stab (orig); | |
1184 | return DEBUG_TYPE_NULL; | |
1185 | } | |
1186 | while (q1 != NULL && p > q1 && p[1] == ':') | |
1187 | { | |
1188 | q2 = strchr (q1, '>'); | |
1189 | if (q2 == NULL || q2 < p) | |
1190 | break; | |
1191 | p += 2; | |
1192 | p = strchr (p, ':'); | |
1193 | if (p == NULL) | |
1194 | { | |
1195 | bad_stab (orig); | |
1196 | return DEBUG_TYPE_NULL; | |
1197 | } | |
1198 | } | |
1199 | ||
d3023c8f | 1200 | dtype = stab_find_tagged_type (dhandle, info, *pp, p - *pp, code); |
e1c14599 ILT |
1201 | |
1202 | *pp = p + 1; | |
e1c14599 ILT |
1203 | } |
1204 | break; | |
1205 | ||
1206 | case '-': | |
1207 | case '0': | |
1208 | case '1': | |
1209 | case '2': | |
1210 | case '3': | |
1211 | case '4': | |
1212 | case '5': | |
1213 | case '6': | |
1214 | case '7': | |
1215 | case '8': | |
1216 | case '9': | |
1217 | case '(': | |
1218 | { | |
1219 | const char *hold; | |
1220 | int xtypenums[2]; | |
1221 | ||
1222 | /* This type is defined as another type. */ | |
1223 | ||
1224 | (*pp)--; | |
1225 | hold = *pp; | |
1226 | ||
1227 | /* Peek ahead at the number to detect void. */ | |
1228 | if (! parse_stab_type_number (pp, xtypenums)) | |
1229 | return DEBUG_TYPE_NULL; | |
1230 | ||
1231 | if (typenums[0] == xtypenums[0] && typenums[1] == xtypenums[1]) | |
1232 | { | |
1233 | /* This type is being defined as itself, which means that | |
1234 | it is void. */ | |
1235 | dtype = debug_make_void_type (dhandle); | |
1236 | } | |
1237 | else | |
1238 | { | |
1239 | *pp = hold; | |
1240 | ||
1241 | /* Go back to the number and have parse_stab_type get it. | |
1242 | This means that we can deal with something like | |
1243 | t(1,2)=(3,4)=... which the Lucid compiler uses. */ | |
1ff0de45 ILT |
1244 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, |
1245 | pp, (debug_type **) NULL); | |
e1c14599 ILT |
1246 | if (dtype == DEBUG_TYPE_NULL) |
1247 | return DEBUG_TYPE_NULL; | |
1248 | } | |
1249 | ||
1250 | if (typenums[0] != -1) | |
1251 | { | |
1252 | if (! stab_record_type (dhandle, info, typenums, dtype)) | |
1253 | return DEBUG_TYPE_NULL; | |
1254 | } | |
1255 | ||
1256 | break; | |
1257 | } | |
1258 | ||
1259 | case '*': | |
1260 | dtype = debug_make_pointer_type (dhandle, | |
1ff0de45 ILT |
1261 | parse_stab_type (dhandle, info, |
1262 | (const char *) NULL, | |
1263 | pp, | |
e1c14599 ILT |
1264 | (debug_type **) NULL)); |
1265 | break; | |
1266 | ||
1267 | case '&': | |
1268 | /* Reference to another type. */ | |
1269 | dtype = (debug_make_reference_type | |
1270 | (dhandle, | |
1ff0de45 ILT |
1271 | parse_stab_type (dhandle, info, (const char *) NULL, pp, |
1272 | (debug_type **) NULL))); | |
e1c14599 ILT |
1273 | break; |
1274 | ||
1275 | case 'f': | |
1276 | /* Function returning another type. */ | |
1277 | /* FIXME: gdb checks os9k_stabs here. */ | |
1278 | dtype = (debug_make_function_type | |
1279 | (dhandle, | |
1ff0de45 ILT |
1280 | parse_stab_type (dhandle, info, (const char *) NULL, pp, |
1281 | (debug_type **) NULL))); | |
e1c14599 ILT |
1282 | break; |
1283 | ||
1284 | case 'k': | |
1285 | /* Const qualifier on some type (Sun). */ | |
1286 | /* FIXME: gdb accepts 'c' here if os9k_stabs. */ | |
1287 | dtype = debug_make_const_type (dhandle, | |
1ff0de45 ILT |
1288 | parse_stab_type (dhandle, info, |
1289 | (const char *) NULL, | |
1290 | pp, | |
e1c14599 ILT |
1291 | (debug_type **) NULL)); |
1292 | break; | |
1293 | ||
1294 | case 'B': | |
1295 | /* Volatile qual on some type (Sun). */ | |
1296 | /* FIXME: gdb accepts 'i' here if os9k_stabs. */ | |
1297 | dtype = (debug_make_volatile_type | |
1298 | (dhandle, | |
1ff0de45 ILT |
1299 | parse_stab_type (dhandle, info, (const char *) NULL, pp, |
1300 | (debug_type **) NULL))); | |
e1c14599 ILT |
1301 | break; |
1302 | ||
1303 | case '@': | |
1304 | /* Offset (class & variable) type. This is used for a pointer | |
1305 | relative to an object. */ | |
1306 | { | |
1307 | debug_type domain; | |
1308 | debug_type memtype; | |
1309 | ||
1310 | /* Member type. */ | |
1311 | ||
1ff0de45 ILT |
1312 | domain = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
1313 | (debug_type **) NULL); | |
e1c14599 ILT |
1314 | if (domain == DEBUG_TYPE_NULL) |
1315 | return DEBUG_TYPE_NULL; | |
1316 | ||
1317 | if (**pp != ',') | |
1318 | { | |
1319 | bad_stab (orig); | |
1320 | return DEBUG_TYPE_NULL; | |
1321 | } | |
1322 | ++*pp; | |
1323 | ||
1ff0de45 ILT |
1324 | memtype = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
1325 | (debug_type **) NULL); | |
e1c14599 ILT |
1326 | if (memtype == DEBUG_TYPE_NULL) |
1327 | return DEBUG_TYPE_NULL; | |
1328 | ||
1329 | dtype = debug_make_offset_type (dhandle, domain, memtype); | |
1330 | } | |
1331 | break; | |
1332 | ||
1333 | case '#': | |
1334 | /* Method (class & fn) type. */ | |
1335 | if (**pp == '#') | |
1336 | { | |
1337 | debug_type return_type; | |
1338 | ||
1339 | ++*pp; | |
1ff0de45 ILT |
1340 | return_type = parse_stab_type (dhandle, info, (const char *) NULL, |
1341 | pp, (debug_type **) NULL); | |
e1c14599 ILT |
1342 | if (return_type == DEBUG_TYPE_NULL) |
1343 | return DEBUG_TYPE_NULL; | |
1344 | if (**pp != ';') | |
1345 | { | |
1346 | bad_stab (orig); | |
1347 | return DEBUG_TYPE_NULL; | |
1348 | } | |
1349 | ++*pp; | |
1350 | dtype = debug_make_method_type (dhandle, return_type, | |
1351 | DEBUG_TYPE_NULL, NULL); | |
1352 | } | |
1353 | else | |
1354 | { | |
1355 | debug_type domain; | |
1356 | debug_type return_type; | |
1357 | debug_type *args; | |
1358 | unsigned int n; | |
1359 | unsigned int alloc; | |
1360 | ||
1ff0de45 ILT |
1361 | domain = parse_stab_type (dhandle, info, (const char *) NULL, |
1362 | pp, (debug_type **) NULL); | |
e1c14599 ILT |
1363 | if (domain == DEBUG_TYPE_NULL) |
1364 | return DEBUG_TYPE_NULL; | |
1365 | ||
1366 | if (**pp != ',') | |
1367 | { | |
1368 | bad_stab (orig); | |
1369 | return DEBUG_TYPE_NULL; | |
1370 | } | |
1371 | ++*pp; | |
1372 | ||
1ff0de45 ILT |
1373 | return_type = parse_stab_type (dhandle, info, (const char *) NULL, |
1374 | pp, (debug_type **) NULL); | |
e1c14599 ILT |
1375 | if (return_type == DEBUG_TYPE_NULL) |
1376 | return DEBUG_TYPE_NULL; | |
1377 | ||
1378 | alloc = 10; | |
1379 | args = (debug_type *) xmalloc (alloc * sizeof *args); | |
1380 | n = 0; | |
1381 | while (**pp != ';') | |
1382 | { | |
1383 | if (**pp != ',') | |
1384 | { | |
1385 | bad_stab (orig); | |
1386 | return DEBUG_TYPE_NULL; | |
1387 | } | |
1388 | ++*pp; | |
1389 | ||
1390 | if (n + 1 >= alloc) | |
1391 | { | |
1392 | alloc += 10; | |
1393 | args = ((debug_type *) | |
1394 | xrealloc ((PTR) args, alloc * sizeof *args)); | |
1395 | } | |
1396 | ||
1ff0de45 ILT |
1397 | args[n] = parse_stab_type (dhandle, info, (const char *) NULL, |
1398 | pp, (debug_type **) NULL); | |
e1c14599 ILT |
1399 | if (args[n] == DEBUG_TYPE_NULL) |
1400 | return DEBUG_TYPE_NULL; | |
1401 | ++n; | |
1402 | } | |
1403 | ++*pp; | |
1404 | ||
d3023c8f ILT |
1405 | /* If the last type is void, then this function does not |
1406 | take a variable number of arguments. If the last is not | |
1407 | void, then it does. */ | |
1408 | if (n > 0 | |
1409 | && debug_get_type_kind (dhandle, args[n - 1]) == DEBUG_KIND_VOID) | |
1410 | --n; | |
1411 | else | |
1412 | { | |
1413 | if (n + 1 >= alloc) | |
1414 | { | |
1415 | alloc += 10; | |
1416 | args = ((debug_type *) | |
1417 | xrealloc ((PTR) args, alloc * sizeof *args)); | |
1418 | } | |
1419 | ||
1420 | args[n] = debug_make_ellipsis_type (dhandle); | |
1421 | if (args[n] == DEBUG_TYPE_NULL) | |
1422 | return DEBUG_TYPE_NULL; | |
1423 | ++n; | |
1424 | } | |
1425 | ||
e1c14599 ILT |
1426 | args[n] = DEBUG_TYPE_NULL; |
1427 | ||
1428 | dtype = debug_make_method_type (dhandle, return_type, domain, args); | |
1429 | } | |
1430 | break; | |
1431 | ||
1432 | case 'r': | |
1433 | /* Range type. */ | |
1ff0de45 | 1434 | dtype = parse_stab_range_type (dhandle, info, typename, pp, typenums); |
e1c14599 ILT |
1435 | break; |
1436 | ||
1437 | case 'b': | |
1438 | /* FIXME: gdb checks os9k_stabs here. */ | |
1439 | /* Sun ACC builtin int type. */ | |
1440 | dtype = parse_stab_sun_builtin_type (dhandle, pp); | |
1441 | break; | |
1442 | ||
1443 | case 'R': | |
1444 | /* Sun ACC builtin float type. */ | |
1445 | dtype = parse_stab_sun_floating_type (dhandle, pp); | |
1446 | break; | |
1447 | ||
1448 | case 'e': | |
1449 | /* Enumeration type. */ | |
1450 | dtype = parse_stab_enum_type (dhandle, pp); | |
1451 | break; | |
1452 | ||
1453 | case 's': | |
1454 | case 'u': | |
1455 | /* Struct or union type. */ | |
d3023c8f | 1456 | dtype = parse_stab_struct_type (dhandle, info, typename, pp, |
e1c14599 ILT |
1457 | descriptor == 's', typenums); |
1458 | break; | |
1459 | ||
1460 | case 'a': | |
1461 | /* Array type. */ | |
1462 | if (**pp != 'r') | |
1463 | { | |
1464 | bad_stab (orig); | |
1465 | return DEBUG_TYPE_NULL; | |
1466 | } | |
1467 | ++*pp; | |
1468 | ||
1469 | dtype = parse_stab_array_type (dhandle, info, pp, stringp); | |
1470 | break; | |
1471 | ||
1472 | case 'S': | |
1473 | dtype = debug_make_set_type (dhandle, | |
1ff0de45 ILT |
1474 | parse_stab_type (dhandle, info, |
1475 | (const char *) NULL, | |
1476 | pp, | |
e1c14599 ILT |
1477 | (debug_type **) NULL), |
1478 | stringp); | |
1479 | break; | |
1480 | ||
1481 | default: | |
1482 | bad_stab (orig); | |
1483 | return DEBUG_TYPE_NULL; | |
1484 | } | |
1485 | ||
1486 | if (dtype == DEBUG_TYPE_NULL) | |
1487 | return DEBUG_TYPE_NULL; | |
1488 | ||
1489 | if (typenums[0] != -1) | |
1490 | { | |
1491 | if (! stab_record_type (dhandle, info, typenums, dtype)) | |
1492 | return DEBUG_TYPE_NULL; | |
1493 | } | |
1494 | ||
1495 | if (size != -1) | |
1496 | { | |
1497 | if (! debug_record_type_size (dhandle, dtype, (unsigned int) size)) | |
1498 | return false; | |
1499 | } | |
1500 | ||
1501 | return dtype; | |
1502 | } | |
1503 | ||
1504 | /* Read a number by which a type is referred to in dbx data, or | |
1505 | perhaps read a pair (FILENUM, TYPENUM) in parentheses. Just a | |
1506 | single number N is equivalent to (0,N). Return the two numbers by | |
1507 | storing them in the vector TYPENUMS. */ | |
1508 | ||
1509 | static boolean | |
1510 | parse_stab_type_number (pp, typenums) | |
1511 | const char **pp; | |
1512 | int *typenums; | |
1513 | { | |
1514 | const char *orig; | |
1515 | ||
1516 | orig = *pp; | |
1517 | ||
1518 | if (**pp != '(') | |
1519 | { | |
1520 | typenums[0] = 0; | |
1521 | typenums[1] = (int) parse_number (pp, (boolean *) NULL); | |
1522 | } | |
1523 | else | |
1524 | { | |
1525 | ++*pp; | |
1526 | typenums[0] = (int) parse_number (pp, (boolean *) NULL); | |
1527 | if (**pp != ',') | |
1528 | { | |
1529 | bad_stab (orig); | |
1530 | return false; | |
1531 | } | |
1532 | ++*pp; | |
1533 | typenums[1] = (int) parse_number (pp, (boolean *) NULL); | |
1534 | if (**pp != ')') | |
1535 | { | |
1536 | bad_stab (orig); | |
1537 | return false; | |
1538 | } | |
1539 | ++*pp; | |
1540 | } | |
1541 | ||
1542 | return true; | |
1543 | } | |
1544 | ||
1545 | /* Parse a range type. */ | |
1546 | ||
1547 | static debug_type | |
1ff0de45 | 1548 | parse_stab_range_type (dhandle, info, typename, pp, typenums) |
e1c14599 ILT |
1549 | PTR dhandle; |
1550 | struct stab_handle *info; | |
1ff0de45 | 1551 | const char *typename; |
e1c14599 ILT |
1552 | const char **pp; |
1553 | const int *typenums; | |
1554 | { | |
1555 | const char *orig; | |
1556 | int rangenums[2]; | |
1557 | boolean self_subrange; | |
1558 | debug_type index_type; | |
1559 | const char *s2, *s3; | |
1560 | bfd_signed_vma n2, n3; | |
1561 | boolean ov2, ov3; | |
1562 | ||
1563 | orig = *pp; | |
1564 | ||
1565 | index_type = DEBUG_TYPE_NULL; | |
1566 | ||
1567 | /* First comes a type we are a subrange of. | |
1568 | In C it is usually 0, 1 or the type being defined. */ | |
1569 | if (! parse_stab_type_number (pp, rangenums)) | |
1570 | return DEBUG_TYPE_NULL; | |
1571 | ||
1572 | self_subrange = (rangenums[0] == typenums[0] | |
1573 | && rangenums[1] == typenums[1]); | |
1574 | ||
1575 | if (**pp == '=') | |
1576 | { | |
1577 | *pp = orig; | |
1ff0de45 ILT |
1578 | index_type = parse_stab_type (dhandle, info, (const char *) NULL, |
1579 | pp, (debug_type **) NULL); | |
e1c14599 ILT |
1580 | if (index_type == DEBUG_TYPE_NULL) |
1581 | return DEBUG_TYPE_NULL; | |
1582 | } | |
1583 | ||
1584 | if (**pp == ';') | |
1585 | ++*pp; | |
1586 | ||
1587 | /* The remaining two operands are usually lower and upper bounds of | |
1588 | the range. But in some special cases they mean something else. */ | |
1589 | s2 = *pp; | |
1590 | n2 = parse_number (pp, &ov2); | |
1591 | if (**pp != ';') | |
1592 | { | |
1593 | bad_stab (orig); | |
1594 | return DEBUG_TYPE_NULL; | |
1595 | } | |
1596 | ++*pp; | |
1597 | ||
1598 | s3 = *pp; | |
1599 | n3 = parse_number (pp, &ov3); | |
1600 | if (**pp != ';') | |
1601 | { | |
1602 | bad_stab (orig); | |
1603 | return DEBUG_TYPE_NULL; | |
1604 | } | |
1605 | ++*pp; | |
1606 | ||
1607 | if (ov2 || ov3) | |
1608 | { | |
1609 | /* gcc will emit range stabs for long long types. Handle this | |
1610 | as a special case. FIXME: This needs to be more general. */ | |
1611 | #define LLLOW "01000000000000000000000;" | |
1612 | #define LLHIGH "0777777777777777777777;" | |
1613 | #define ULLHIGH "01777777777777777777777;" | |
1614 | if (index_type == DEBUG_TYPE_NULL) | |
1615 | { | |
1616 | if (strncmp (s2, LLLOW, sizeof LLLOW - 1) == 0 | |
1617 | && strncmp (s3, LLHIGH, sizeof LLHIGH - 1) == 0) | |
1618 | return debug_make_int_type (dhandle, 8, false); | |
1619 | if (! ov2 | |
1620 | && n2 == 0 | |
1621 | && strncmp (s3, ULLHIGH, sizeof ULLHIGH - 1) == 0) | |
1622 | return debug_make_int_type (dhandle, 8, true); | |
1623 | } | |
1624 | ||
1625 | warn_stab (orig, "numeric overflow"); | |
1626 | } | |
1627 | ||
1628 | if (index_type == DEBUG_TYPE_NULL) | |
1629 | { | |
1630 | /* A type defined as a subrange of itself, with both bounds 0, | |
1631 | is void. */ | |
1632 | if (self_subrange && n2 == 0 && n3 == 0) | |
1633 | return debug_make_void_type (dhandle); | |
1634 | ||
1635 | /* If n3 is zero and n2 is positive, this is a floating point | |
1636 | type, and n2 is the number of bytes. */ | |
1637 | if (n3 == 0 && n2 > 0) | |
1638 | return debug_make_float_type (dhandle, n2); | |
1639 | ||
1640 | /* If the upper bound is -1, this is an unsigned int. */ | |
1641 | if (n2 == 0 && n3 == -1) | |
1642 | { | |
1ff0de45 ILT |
1643 | /* When gcc is used with -gstabs, but not -gstabs+, it will emit |
1644 | long long int:t6=r1;0;-1; | |
1645 | long long unsigned int:t7=r1;0;-1; | |
1646 | We hack here to handle this reasonably. */ | |
1647 | if (typename != NULL) | |
1648 | { | |
1649 | if (strcmp (typename, "long long int") == 0) | |
1650 | return debug_make_int_type (dhandle, 8, false); | |
1651 | else if (strcmp (typename, "long long unsigned int") == 0) | |
1652 | return debug_make_int_type (dhandle, 8, true); | |
1653 | } | |
e1c14599 ILT |
1654 | /* FIXME: The size here really depends upon the target. */ |
1655 | return debug_make_int_type (dhandle, 4, true); | |
1656 | } | |
1657 | ||
1658 | /* A range of 0 to 127 is char. */ | |
1659 | if (self_subrange && n2 == 0 && n3 == 127) | |
1660 | return debug_make_int_type (dhandle, 1, false); | |
1661 | ||
1662 | /* FIXME: gdb checks for the language CHILL here. */ | |
1663 | ||
1664 | if (n2 == 0) | |
1665 | { | |
1666 | if (n3 < 0) | |
1667 | return debug_make_int_type (dhandle, - n3, true); | |
1668 | else if (n3 == 0xff) | |
1669 | return debug_make_int_type (dhandle, 1, true); | |
1670 | else if (n3 == 0xffff) | |
1671 | return debug_make_int_type (dhandle, 2, true); | |
1672 | /* -1 is used for the upper bound of (4 byte) "unsigned int" | |
1673 | and "unsigned long", and we already checked for that, so | |
1674 | don't need to test for it here. */ | |
1675 | } | |
1676 | else if (n3 == 0 | |
1677 | && n2 < 0 | |
1678 | && (self_subrange || n2 == -8)) | |
1679 | return debug_make_int_type (dhandle, - n2, true); | |
1680 | else if (n2 == - n3 - 1) | |
1681 | { | |
1682 | if (n3 == 0x7f) | |
1683 | return debug_make_int_type (dhandle, 1, false); | |
1684 | else if (n3 == 0x7fff) | |
1685 | return debug_make_int_type (dhandle, 2, false); | |
1686 | else if (n3 == 0x7fffffff) | |
1687 | return debug_make_int_type (dhandle, 4, false); | |
1688 | } | |
1689 | } | |
1690 | ||
1691 | /* At this point I don't have the faintest idea how to deal with a | |
1692 | self_subrange type; I'm going to assume that this is used as an | |
1693 | idiom, and that all of them are special cases. So . . . */ | |
1694 | if (self_subrange) | |
1695 | { | |
1696 | bad_stab (orig); | |
1697 | return DEBUG_TYPE_NULL; | |
1698 | } | |
1699 | ||
1700 | index_type = stab_find_type (dhandle, info, rangenums); | |
1701 | if (index_type == DEBUG_TYPE_NULL) | |
1702 | { | |
1703 | /* Does this actually ever happen? Is that why we are worrying | |
1704 | about dealing with it rather than just calling error_type? */ | |
1705 | warn_stab (orig, "missing index type"); | |
1706 | index_type = debug_make_int_type (dhandle, 4, false); | |
1707 | } | |
1708 | ||
1709 | return debug_make_range_type (dhandle, index_type, n2, n3); | |
1710 | } | |
1711 | ||
1712 | /* Sun's ACC uses a somewhat saner method for specifying the builtin | |
1713 | typedefs in every file (for int, long, etc): | |
1714 | ||
1715 | type = b <signed> <width>; <offset>; <nbits> | |
1716 | signed = u or s. Possible c in addition to u or s (for char?). | |
1717 | offset = offset from high order bit to start bit of type. | |
1718 | width is # bytes in object of this type, nbits is # bits in type. | |
1719 | ||
1720 | The width/offset stuff appears to be for small objects stored in | |
1721 | larger ones (e.g. `shorts' in `int' registers). We ignore it for now, | |
1722 | FIXME. */ | |
1723 | ||
1724 | static debug_type | |
1725 | parse_stab_sun_builtin_type (dhandle, pp) | |
1726 | PTR dhandle; | |
1727 | const char **pp; | |
1728 | { | |
1729 | const char *orig; | |
1730 | boolean unsignedp; | |
1731 | bfd_vma bits; | |
1732 | ||
1733 | orig = *pp; | |
1734 | ||
1735 | switch (**pp) | |
1736 | { | |
1737 | case 's': | |
1738 | unsignedp = false; | |
1739 | break; | |
1740 | case 'u': | |
1741 | unsignedp = true; | |
1742 | break; | |
1743 | default: | |
1744 | bad_stab (orig); | |
1745 | return DEBUG_TYPE_NULL; | |
1746 | } | |
1747 | ++*pp; | |
1748 | ||
1749 | /* For some odd reason, all forms of char put a c here. This is strange | |
1750 | because no other type has this honor. We can safely ignore this because | |
1751 | we actually determine 'char'acterness by the number of bits specified in | |
1752 | the descriptor. */ | |
1753 | if (**pp == 'c') | |
1754 | ++*pp; | |
1755 | ||
1756 | /* The first number appears to be the number of bytes occupied | |
1757 | by this type, except that unsigned short is 4 instead of 2. | |
1758 | Since this information is redundant with the third number, | |
1759 | we will ignore it. */ | |
1760 | (void) parse_number (pp, (boolean *) NULL); | |
1761 | if (**pp != ';') | |
1762 | { | |
1763 | bad_stab (orig); | |
1764 | return DEBUG_TYPE_NULL; | |
1765 | } | |
1766 | ++*pp; | |
1767 | ||
1768 | /* The second number is always 0, so ignore it too. */ | |
1769 | (void) parse_number (pp, (boolean *) NULL); | |
1770 | if (**pp != ';') | |
1771 | { | |
1772 | bad_stab (orig); | |
1773 | return DEBUG_TYPE_NULL; | |
1774 | } | |
1775 | ++*pp; | |
1776 | ||
1777 | /* The third number is the number of bits for this type. */ | |
1778 | bits = parse_number (pp, (boolean *) NULL); | |
1779 | ||
1780 | /* The type *should* end with a semicolon. If it are embedded | |
1781 | in a larger type the semicolon may be the only way to know where | |
1782 | the type ends. If this type is at the end of the stabstring we | |
1783 | can deal with the omitted semicolon (but we don't have to like | |
1784 | it). Don't bother to complain(), Sun's compiler omits the semicolon | |
1785 | for "void". */ | |
1786 | if (**pp == ';') | |
1787 | ++*pp; | |
1788 | ||
1789 | if (bits == 0) | |
1790 | return debug_make_void_type (dhandle); | |
1791 | ||
1792 | return debug_make_int_type (dhandle, bits / 8, unsignedp); | |
1793 | } | |
1794 | ||
1795 | /* Parse a builtin floating type generated by the Sun compiler. */ | |
1796 | ||
1797 | static debug_type | |
1798 | parse_stab_sun_floating_type (dhandle, pp) | |
1799 | PTR dhandle; | |
1800 | const char **pp; | |
1801 | { | |
1802 | const char *orig; | |
1803 | bfd_vma details; | |
1804 | bfd_vma bytes; | |
1805 | ||
1806 | orig = *pp; | |
1807 | ||
1808 | /* The first number has more details about the type, for example | |
1809 | FN_COMPLEX. */ | |
1810 | details = parse_number (pp, (boolean *) NULL); | |
1811 | if (**pp != ';') | |
1812 | { | |
1813 | bad_stab (orig); | |
1814 | return DEBUG_TYPE_NULL; | |
1815 | } | |
1816 | ||
1817 | /* The second number is the number of bytes occupied by this type */ | |
1818 | bytes = parse_number (pp, (boolean *) NULL); | |
1819 | if (**pp != ';') | |
1820 | { | |
1821 | bad_stab (orig); | |
1822 | return DEBUG_TYPE_NULL; | |
1823 | } | |
1824 | ||
1825 | if (details == NF_COMPLEX | |
1826 | || details == NF_COMPLEX16 | |
1827 | || details == NF_COMPLEX32) | |
1828 | return debug_make_complex_type (dhandle, bytes); | |
1829 | ||
1830 | return debug_make_float_type (dhandle, bytes); | |
1831 | } | |
1832 | ||
1833 | /* Handle an enum type. */ | |
1834 | ||
1835 | static debug_type | |
1836 | parse_stab_enum_type (dhandle, pp) | |
1837 | PTR dhandle; | |
1838 | const char **pp; | |
1839 | { | |
1840 | const char *orig; | |
1841 | const char **names; | |
1842 | bfd_signed_vma *values; | |
1843 | unsigned int n; | |
1844 | unsigned int alloc; | |
1845 | ||
1846 | orig = *pp; | |
1847 | ||
1848 | /* FIXME: gdb checks os9k_stabs here. */ | |
1849 | ||
1850 | /* The aix4 compiler emits an extra field before the enum members; | |
1851 | my guess is it's a type of some sort. Just ignore it. */ | |
1852 | if (**pp == '-') | |
1853 | { | |
1854 | while (**pp != ':') | |
1855 | ++*pp; | |
1856 | ++*pp; | |
1857 | } | |
1858 | ||
1859 | /* Read the value-names and their values. | |
1860 | The input syntax is NAME:VALUE,NAME:VALUE, and so on. | |
1861 | A semicolon or comma instead of a NAME means the end. */ | |
1862 | alloc = 10; | |
1863 | names = (const char **) xmalloc (alloc * sizeof *names); | |
1864 | values = (bfd_signed_vma *) xmalloc (alloc * sizeof *values); | |
1865 | n = 0; | |
1866 | while (**pp != '\0' && **pp != ';' && **pp != ',') | |
1867 | { | |
1868 | const char *p; | |
1869 | char *name; | |
1870 | bfd_signed_vma val; | |
1871 | ||
1872 | p = *pp; | |
1873 | while (*p != ':') | |
1874 | ++p; | |
1875 | ||
1876 | name = savestring (*pp, p - *pp); | |
1877 | ||
1878 | *pp = p + 1; | |
1879 | val = (bfd_signed_vma) parse_number (pp, (boolean *) NULL); | |
1880 | if (**pp != ',') | |
1881 | { | |
1882 | bad_stab (orig); | |
1883 | return DEBUG_TYPE_NULL; | |
1884 | } | |
1885 | ++*pp; | |
1886 | ||
1887 | if (n + 1 >= alloc) | |
1888 | { | |
1889 | alloc += 10; | |
1890 | names = ((const char **) | |
1891 | xrealloc ((PTR) names, alloc * sizeof *names)); | |
1892 | values = ((bfd_signed_vma *) | |
1893 | xrealloc ((PTR) values, alloc * sizeof *values)); | |
1894 | } | |
1895 | ||
1896 | names[n] = name; | |
1897 | values[n] = val; | |
1898 | ++n; | |
1899 | } | |
1900 | ||
1901 | names[n] = NULL; | |
1902 | values[n] = 0; | |
1903 | ||
1904 | if (**pp == ';') | |
1905 | ++*pp; | |
1906 | ||
1907 | return debug_make_enum_type (dhandle, names, values); | |
1908 | } | |
1909 | ||
1910 | /* Read the description of a structure (or union type) and return an object | |
1911 | describing the type. | |
1912 | ||
1913 | PP points to a character pointer that points to the next unconsumed token | |
1914 | in the the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;", | |
1915 | *PP will point to "4a:1,0,32;;". */ | |
1916 | ||
1917 | static debug_type | |
d3023c8f | 1918 | parse_stab_struct_type (dhandle, info, tagname, pp, structp, typenums) |
e1c14599 ILT |
1919 | PTR dhandle; |
1920 | struct stab_handle *info; | |
d3023c8f | 1921 | const char *tagname; |
e1c14599 ILT |
1922 | const char **pp; |
1923 | boolean structp; | |
1924 | const int *typenums; | |
1925 | { | |
1926 | const char *orig; | |
1927 | bfd_vma size; | |
1928 | debug_baseclass *baseclasses; | |
1929 | debug_field *fields; | |
1930 | boolean statics; | |
1931 | debug_method *methods; | |
1932 | debug_type vptrbase; | |
1933 | boolean ownvptr; | |
1934 | ||
1935 | orig = *pp; | |
1936 | ||
1937 | /* Get the size. */ | |
1938 | size = parse_number (pp, (boolean *) NULL); | |
1939 | ||
1940 | /* Get the other information. */ | |
1941 | if (! parse_stab_baseclasses (dhandle, info, pp, &baseclasses) | |
1942 | || ! parse_stab_struct_fields (dhandle, info, pp, &fields, &statics) | |
d3023c8f | 1943 | || ! parse_stab_members (dhandle, info, tagname, pp, typenums, &methods) |
e1c14599 ILT |
1944 | || ! parse_stab_tilde_field (dhandle, info, pp, typenums, &vptrbase, |
1945 | &ownvptr)) | |
1946 | return DEBUG_TYPE_NULL; | |
1947 | ||
1948 | if (! statics | |
1949 | && baseclasses == NULL | |
1950 | && methods == NULL | |
1951 | && vptrbase == DEBUG_TYPE_NULL | |
1952 | && ! ownvptr) | |
1953 | return debug_make_struct_type (dhandle, structp, size, fields); | |
1954 | ||
1955 | return debug_make_object_type (dhandle, structp, size, fields, baseclasses, | |
1956 | methods, vptrbase, ownvptr); | |
1957 | } | |
1958 | ||
1959 | /* The stabs for C++ derived classes contain baseclass information which | |
1960 | is marked by a '!' character after the total size. This function is | |
1961 | called when we encounter the baseclass marker, and slurps up all the | |
1962 | baseclass information. | |
1963 | ||
1964 | Immediately following the '!' marker is the number of base classes that | |
1965 | the class is derived from, followed by information for each base class. | |
1966 | For each base class, there are two visibility specifiers, a bit offset | |
1967 | to the base class information within the derived class, a reference to | |
1968 | the type for the base class, and a terminating semicolon. | |
1969 | ||
1970 | A typical example, with two base classes, would be "!2,020,19;0264,21;". | |
1971 | ^^ ^ ^ ^ ^ ^ ^ | |
1972 | Baseclass information marker __________________|| | | | | | | | |
1973 | Number of baseclasses __________________________| | | | | | | | |
1974 | Visibility specifiers (2) ________________________| | | | | | | |
1975 | Offset in bits from start of class _________________| | | | | | |
1976 | Type number for base class ___________________________| | | | | |
1977 | Visibility specifiers (2) _______________________________| | | | |
1978 | Offset in bits from start of class ________________________| | | |
1979 | Type number of base class ____________________________________| | |
1980 | ||
1981 | Return true for success, false for failure. */ | |
1982 | ||
1983 | static boolean | |
1984 | parse_stab_baseclasses (dhandle, info, pp, retp) | |
1985 | PTR dhandle; | |
1986 | struct stab_handle *info; | |
1987 | const char **pp; | |
1988 | debug_baseclass **retp; | |
1989 | { | |
1990 | const char *orig; | |
1991 | unsigned int c, i; | |
1992 | debug_baseclass *classes; | |
1993 | ||
1994 | *retp = NULL; | |
1995 | ||
1996 | orig = *pp; | |
1997 | ||
1998 | if (**pp != '!') | |
1999 | { | |
2000 | /* No base classes. */ | |
2001 | return true; | |
2002 | } | |
2003 | ++*pp; | |
2004 | ||
2005 | c = (unsigned int) parse_number (pp, (boolean *) NULL); | |
2006 | ||
2007 | if (**pp != ',') | |
2008 | { | |
2009 | bad_stab (orig); | |
2010 | return false; | |
2011 | } | |
2012 | ++*pp; | |
2013 | ||
2014 | classes = (debug_baseclass *) xmalloc ((c + 1) * sizeof (**retp)); | |
2015 | ||
2016 | for (i = 0; i < c; i++) | |
2017 | { | |
2018 | boolean virtual; | |
2019 | enum debug_visibility visibility; | |
2020 | bfd_vma bitpos; | |
2021 | debug_type type; | |
2022 | ||
2023 | switch (**pp) | |
2024 | { | |
2025 | case '0': | |
2026 | virtual = false; | |
2027 | break; | |
2028 | case '1': | |
2029 | virtual = true; | |
2030 | break; | |
2031 | default: | |
2032 | warn_stab (orig, "unknown virtual character for baseclass"); | |
2033 | virtual = false; | |
2034 | break; | |
2035 | } | |
2036 | ++*pp; | |
2037 | ||
2038 | switch (**pp) | |
2039 | { | |
2040 | case '0': | |
2041 | visibility = DEBUG_VISIBILITY_PRIVATE; | |
2042 | break; | |
2043 | case '1': | |
2044 | visibility = DEBUG_VISIBILITY_PROTECTED; | |
2045 | break; | |
2046 | case '2': | |
2047 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2048 | break; | |
2049 | default: | |
2050 | warn_stab (orig, "unknown visibility character for baseclass"); | |
2051 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2052 | break; | |
2053 | } | |
2054 | ++*pp; | |
2055 | ||
2056 | /* The remaining value is the bit offset of the portion of the | |
2057 | object corresponding to this baseclass. Always zero in the | |
2058 | absence of multiple inheritance. */ | |
2059 | bitpos = parse_number (pp, (boolean *) NULL); | |
2060 | if (**pp != ',') | |
2061 | { | |
2062 | bad_stab (orig); | |
2063 | return false; | |
2064 | } | |
2065 | ++*pp; | |
2066 | ||
1ff0de45 ILT |
2067 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
2068 | (debug_type **) NULL); | |
e1c14599 ILT |
2069 | if (type == DEBUG_TYPE_NULL) |
2070 | return false; | |
2071 | ||
2072 | classes[i] = debug_make_baseclass (dhandle, type, bitpos, virtual, | |
2073 | visibility); | |
2074 | if (classes[i] == DEBUG_BASECLASS_NULL) | |
2075 | return false; | |
2076 | ||
2077 | if (**pp != ';') | |
2078 | return false; | |
2079 | ++*pp; | |
2080 | } | |
2081 | ||
2082 | classes[i] = DEBUG_BASECLASS_NULL; | |
2083 | ||
2084 | *retp = classes; | |
2085 | ||
2086 | return true; | |
2087 | } | |
2088 | ||
2089 | /* Read struct or class data fields. They have the form: | |
2090 | ||
2091 | NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ; | |
2092 | ||
2093 | At the end, we see a semicolon instead of a field. | |
2094 | ||
2095 | In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for | |
2096 | a static field. | |
2097 | ||
2098 | The optional VISIBILITY is one of: | |
2099 | ||
2100 | '/0' (VISIBILITY_PRIVATE) | |
2101 | '/1' (VISIBILITY_PROTECTED) | |
2102 | '/2' (VISIBILITY_PUBLIC) | |
2103 | '/9' (VISIBILITY_IGNORE) | |
2104 | ||
2105 | or nothing, for C style fields with public visibility. | |
2106 | ||
2107 | Returns 1 for success, 0 for failure. */ | |
2108 | ||
2109 | static boolean | |
2110 | parse_stab_struct_fields (dhandle, info, pp, retp, staticsp) | |
2111 | PTR dhandle; | |
2112 | struct stab_handle *info; | |
2113 | const char **pp; | |
2114 | debug_field **retp; | |
2115 | boolean *staticsp; | |
2116 | { | |
2117 | const char *orig; | |
2118 | const char *p; | |
2119 | debug_field *fields; | |
2120 | unsigned int c; | |
2121 | unsigned int alloc; | |
2122 | ||
2123 | *retp = NULL; | |
2124 | *staticsp = false; | |
2125 | ||
2126 | orig = *pp; | |
2127 | ||
2128 | c = 0; | |
2129 | alloc = 10; | |
2130 | fields = (debug_field *) xmalloc (alloc * sizeof *fields); | |
2131 | while (**pp != ';') | |
2132 | { | |
2133 | /* FIXME: gdb checks os9k_stabs here. */ | |
2134 | ||
2135 | p = *pp; | |
2136 | ||
2137 | /* Add 1 to c to leave room for NULL pointer at end. */ | |
2138 | if (c + 1 >= alloc) | |
2139 | { | |
2140 | alloc += 10; | |
2141 | fields = ((debug_field *) | |
2142 | xrealloc ((PTR) fields, alloc * sizeof *fields)); | |
2143 | } | |
2144 | ||
2145 | /* If it starts with CPLUS_MARKER it is a special abbreviation, | |
2146 | unless the CPLUS_MARKER is followed by an underscore, in | |
2147 | which case it is just the name of an anonymous type, which we | |
2148 | should handle like any other type name. We accept either '$' | |
2149 | or '.', because a field name can never contain one of these | |
2150 | characters except as a CPLUS_MARKER. */ | |
2151 | ||
2152 | if ((*p == '$' || *p == '.') && p[1] != '_') | |
2153 | { | |
2154 | ++*pp; | |
2155 | if (! parse_stab_cpp_abbrev (dhandle, info, pp, fields + c)) | |
2156 | return false; | |
2157 | ++c; | |
2158 | continue; | |
2159 | } | |
2160 | ||
2161 | /* Look for the ':' that separates the field name from the field | |
2162 | values. Data members are delimited by a single ':', while member | |
2163 | functions are delimited by a pair of ':'s. When we hit the member | |
2164 | functions (if any), terminate scan loop and return. */ | |
2165 | ||
2166 | p = strchr (p, ':'); | |
2167 | if (p == NULL) | |
2168 | { | |
2169 | bad_stab (orig); | |
2170 | return false; | |
2171 | } | |
2172 | ||
2173 | if (p[1] == ':') | |
2174 | break; | |
2175 | ||
2176 | if (! parse_stab_one_struct_field (dhandle, info, pp, p, fields + c, | |
2177 | staticsp)) | |
2178 | return false; | |
2179 | ||
2180 | ++c; | |
2181 | } | |
2182 | ||
2183 | fields[c] = DEBUG_FIELD_NULL; | |
2184 | ||
2185 | *retp = fields; | |
2186 | ||
2187 | return true; | |
2188 | } | |
2189 | ||
2190 | /* Special GNU C++ name. */ | |
2191 | ||
2192 | static boolean | |
2193 | parse_stab_cpp_abbrev (dhandle, info, pp, retp) | |
2194 | PTR dhandle; | |
2195 | struct stab_handle *info; | |
2196 | const char **pp; | |
2197 | debug_field *retp; | |
2198 | { | |
2199 | const char *orig; | |
2200 | int cpp_abbrev; | |
2201 | debug_type context; | |
2202 | const char *name; | |
2203 | const char *typename; | |
2204 | debug_type type; | |
2205 | bfd_vma bitpos; | |
2206 | ||
2207 | *retp = DEBUG_FIELD_NULL; | |
2208 | ||
2209 | orig = *pp; | |
2210 | ||
2211 | if (**pp != 'v') | |
2212 | { | |
2213 | bad_stab (*pp); | |
2214 | return false; | |
2215 | } | |
2216 | ++*pp; | |
2217 | ||
2218 | cpp_abbrev = **pp; | |
2219 | ++*pp; | |
2220 | ||
2221 | /* At this point, *pp points to something like "22:23=*22...", where | |
2222 | the type number before the ':' is the "context" and everything | |
2223 | after is a regular type definition. Lookup the type, find it's | |
2224 | name, and construct the field name. */ | |
2225 | ||
1ff0de45 ILT |
2226 | context = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
2227 | (debug_type **) NULL); | |
e1c14599 ILT |
2228 | if (context == DEBUG_TYPE_NULL) |
2229 | return false; | |
2230 | ||
2231 | switch (cpp_abbrev) | |
2232 | { | |
2233 | case 'f': | |
2234 | /* $vf -- a virtual function table pointer. */ | |
2235 | name = "_vptr$"; | |
2236 | break; | |
2237 | case 'b': | |
2238 | /* $vb -- a virtual bsomethingorother */ | |
2239 | typename = debug_get_type_name (dhandle, context); | |
2240 | if (typename == NULL) | |
2241 | { | |
2242 | warn_stab (orig, "unnamed $vb type"); | |
2243 | typename = "FOO"; | |
2244 | } | |
2245 | name = concat ("_vb$", typename, (const char *) NULL); | |
2246 | break; | |
2247 | default: | |
2248 | warn_stab (orig, "unrecognized C++ abbreviation"); | |
2249 | name = "INVALID_CPLUSPLUS_ABBREV"; | |
2250 | break; | |
2251 | } | |
2252 | ||
2253 | if (**pp != ':') | |
2254 | { | |
2255 | bad_stab (orig); | |
2256 | return false; | |
2257 | } | |
2258 | ++*pp; | |
2259 | ||
1ff0de45 ILT |
2260 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
2261 | (debug_type **) NULL); | |
e1c14599 ILT |
2262 | if (**pp != ',') |
2263 | { | |
2264 | bad_stab (orig); | |
2265 | return false; | |
2266 | } | |
2267 | ++*pp; | |
2268 | ||
2269 | bitpos = parse_number (pp, (boolean *) NULL); | |
2270 | if (**pp != ';') | |
2271 | { | |
2272 | bad_stab (orig); | |
2273 | return false; | |
2274 | } | |
2275 | ++*pp; | |
2276 | ||
2277 | *retp = debug_make_field (dhandle, name, type, bitpos, 0, | |
2278 | DEBUG_VISIBILITY_PRIVATE); | |
2279 | if (*retp == DEBUG_FIELD_NULL) | |
2280 | return false; | |
2281 | ||
2282 | return true; | |
2283 | } | |
2284 | ||
2285 | /* Parse a single field in a struct or union. */ | |
2286 | ||
2287 | static boolean | |
2288 | parse_stab_one_struct_field (dhandle, info, pp, p, retp, staticsp) | |
2289 | PTR dhandle; | |
2290 | struct stab_handle *info; | |
2291 | const char **pp; | |
2292 | const char *p; | |
2293 | debug_field *retp; | |
2294 | boolean *staticsp; | |
2295 | { | |
2296 | const char *orig; | |
2297 | char *name; | |
2298 | enum debug_visibility visibility; | |
2299 | debug_type type; | |
2300 | bfd_vma bitpos; | |
2301 | bfd_vma bitsize; | |
2302 | ||
2303 | orig = *pp; | |
2304 | ||
2305 | /* FIXME: gdb checks ARM_DEMANGLING here. */ | |
2306 | ||
2307 | name = savestring (*pp, p - *pp); | |
2308 | ||
2309 | *pp = p + 1; | |
2310 | ||
2311 | if (**pp != '/') | |
2312 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2313 | else | |
2314 | { | |
2315 | ++*pp; | |
2316 | switch (**pp) | |
2317 | { | |
2318 | case '0': | |
2319 | visibility = DEBUG_VISIBILITY_PRIVATE; | |
2320 | break; | |
2321 | case '1': | |
2322 | visibility = DEBUG_VISIBILITY_PROTECTED; | |
2323 | break; | |
2324 | case '2': | |
2325 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2326 | break; | |
2327 | default: | |
2328 | warn_stab (orig, "unknown visibility character for field"); | |
2329 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2330 | break; | |
2331 | } | |
2332 | ++*pp; | |
2333 | } | |
2334 | ||
1ff0de45 ILT |
2335 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
2336 | (debug_type **) NULL); | |
e1c14599 ILT |
2337 | if (type == DEBUG_TYPE_NULL) |
2338 | return false; | |
2339 | ||
2340 | if (**pp == ':') | |
2341 | { | |
2342 | char *varname; | |
2343 | ||
2344 | /* This is a static class member. */ | |
2345 | ++*pp; | |
2346 | p = strchr (*pp, ';'); | |
2347 | if (p == NULL) | |
2348 | { | |
2349 | bad_stab (orig); | |
2350 | return false; | |
2351 | } | |
2352 | ||
2353 | varname = savestring (*pp, p - *pp); | |
2354 | ||
2355 | *pp = p + 1; | |
2356 | ||
2357 | *retp = debug_make_static_member (dhandle, name, type, varname, | |
2358 | visibility); | |
2359 | *staticsp = true; | |
2360 | ||
2361 | return true; | |
2362 | } | |
2363 | ||
2364 | if (**pp != ',') | |
2365 | { | |
2366 | bad_stab (orig); | |
2367 | return false; | |
2368 | } | |
2369 | ++*pp; | |
2370 | ||
2371 | bitpos = parse_number (pp, (boolean *) NULL); | |
2372 | if (**pp != ',') | |
2373 | { | |
2374 | bad_stab (orig); | |
2375 | return false; | |
2376 | } | |
2377 | ++*pp; | |
2378 | ||
2379 | bitsize = parse_number (pp, (boolean *) NULL); | |
2380 | if (**pp != ';') | |
2381 | { | |
2382 | bad_stab (orig); | |
2383 | return false; | |
2384 | } | |
2385 | ++*pp; | |
2386 | ||
2387 | if (bitpos == 0 && bitsize == 0) | |
2388 | { | |
2389 | /* This can happen in two cases: (1) at least for gcc 2.4.5 or | |
2390 | so, it is a field which has been optimized out. The correct | |
2391 | stab for this case is to use VISIBILITY_IGNORE, but that is a | |
2392 | recent invention. (2) It is a 0-size array. For example | |
2393 | union { int num; char str[0]; } foo. Printing "<no value>" | |
2394 | for str in "p foo" is OK, since foo.str (and thus foo.str[3]) | |
2395 | will continue to work, and a 0-size array as a whole doesn't | |
2396 | have any contents to print. | |
2397 | ||
2398 | I suspect this probably could also happen with gcc -gstabs | |
2399 | (not -gstabs+) for static fields, and perhaps other C++ | |
2400 | extensions. Hopefully few people use -gstabs with gdb, since | |
2401 | it is intended for dbx compatibility. */ | |
2402 | visibility = DEBUG_VISIBILITY_IGNORE; | |
2403 | } | |
2404 | ||
2405 | /* FIXME: gdb does some stuff here to mark fields as unpacked. */ | |
2406 | ||
2407 | *retp = debug_make_field (dhandle, name, type, bitpos, bitsize, visibility); | |
2408 | ||
2409 | return true; | |
2410 | } | |
2411 | ||
2412 | /* Read member function stabs info for C++ classes. The form of each member | |
2413 | function data is: | |
2414 | ||
2415 | NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ; | |
2416 | ||
2417 | An example with two member functions is: | |
2418 | ||
2419 | afunc1::20=##15;:i;2A.;afunc2::20:i;2A.; | |
2420 | ||
2421 | For the case of overloaded operators, the format is op$::*.funcs, where | |
2422 | $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator | |
2423 | name (such as `+=') and `.' marks the end of the operator name. */ | |
2424 | ||
2425 | static boolean | |
d3023c8f | 2426 | parse_stab_members (dhandle, info, tagname, pp, typenums, retp) |
e1c14599 ILT |
2427 | PTR dhandle; |
2428 | struct stab_handle *info; | |
d3023c8f | 2429 | const char *tagname; |
e1c14599 | 2430 | const char **pp; |
d3023c8f | 2431 | const int *typenums; |
e1c14599 ILT |
2432 | debug_method **retp; |
2433 | { | |
2434 | const char *orig; | |
2435 | debug_method *methods; | |
2436 | unsigned int c; | |
2437 | unsigned int alloc; | |
2438 | ||
2439 | *retp = NULL; | |
2440 | ||
2441 | orig = *pp; | |
2442 | ||
2443 | alloc = 0; | |
2444 | methods = NULL; | |
2445 | c = 0; | |
2446 | ||
2447 | while (**pp != ';') | |
2448 | { | |
2449 | const char *p; | |
2450 | char *name; | |
2451 | debug_method_variant *variants; | |
2452 | unsigned int cvars; | |
2453 | unsigned int allocvars; | |
2454 | debug_type look_ahead_type; | |
2455 | ||
2456 | p = strchr (*pp, ':'); | |
2457 | if (p == NULL || p[1] != ':') | |
2458 | break; | |
2459 | ||
2460 | /* FIXME: Some systems use something other than '$' here. */ | |
2461 | if ((*pp)[0] != 'o' || (*pp)[1] != 'p' || (*pp)[2] != '$') | |
2462 | { | |
2463 | name = savestring (*pp, p - *pp); | |
2464 | *pp = p + 2; | |
2465 | } | |
2466 | else | |
2467 | { | |
2468 | /* This is a completely wierd case. In order to stuff in the | |
2469 | names that might contain colons (the usual name delimiter), | |
2470 | Mike Tiemann defined a different name format which is | |
2471 | signalled if the identifier is "op$". In that case, the | |
2472 | format is "op$::XXXX." where XXXX is the name. This is | |
2473 | used for names like "+" or "=". YUUUUUUUK! FIXME! */ | |
2474 | *pp = p + 2; | |
2475 | for (p = *pp; *p != '.' && *p != '\0'; p++) | |
2476 | ; | |
2477 | if (*p != '.') | |
2478 | { | |
2479 | bad_stab (orig); | |
2480 | return false; | |
2481 | } | |
2482 | name = savestring (*pp, p - *pp); | |
2483 | *pp = p + 1; | |
2484 | } | |
2485 | ||
2486 | allocvars = 10; | |
2487 | variants = ((debug_method_variant *) | |
2488 | xmalloc (allocvars * sizeof *variants)); | |
2489 | cvars = 0; | |
2490 | ||
2491 | look_ahead_type = DEBUG_TYPE_NULL; | |
2492 | ||
2493 | do | |
2494 | { | |
2495 | debug_type type; | |
2496 | char *argtypes; | |
2497 | enum debug_visibility visibility; | |
2498 | boolean constp, volatilep, staticp; | |
2499 | bfd_vma voffset; | |
2500 | debug_type context; | |
d3023c8f | 2501 | const char *physname; |
e1c14599 ILT |
2502 | |
2503 | if (look_ahead_type != DEBUG_TYPE_NULL) | |
2504 | { | |
2505 | /* g++ version 1 kludge */ | |
2506 | type = look_ahead_type; | |
2507 | look_ahead_type = DEBUG_TYPE_NULL; | |
2508 | } | |
2509 | else | |
2510 | { | |
1ff0de45 ILT |
2511 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
2512 | (debug_type **) NULL); | |
e1c14599 ILT |
2513 | if (type == DEBUG_TYPE_NULL) |
2514 | return false; | |
2515 | if (**pp != ':') | |
2516 | { | |
2517 | bad_stab (orig); | |
2518 | return false; | |
2519 | } | |
2520 | } | |
2521 | ||
2522 | ++*pp; | |
2523 | p = strchr (*pp, ';'); | |
2524 | if (p == NULL) | |
2525 | { | |
2526 | bad_stab (orig); | |
2527 | return false; | |
2528 | } | |
2529 | ||
e1c14599 ILT |
2530 | argtypes = savestring (*pp, p - *pp); |
2531 | *pp = p + 1; | |
2532 | ||
2533 | switch (**pp) | |
2534 | { | |
2535 | case '0': | |
2536 | visibility = DEBUG_VISIBILITY_PRIVATE; | |
2537 | break; | |
2538 | case '1': | |
2539 | visibility = DEBUG_VISIBILITY_PROTECTED; | |
2540 | break; | |
2541 | default: | |
2542 | visibility = DEBUG_VISIBILITY_PUBLIC; | |
2543 | break; | |
2544 | } | |
2545 | ++*pp; | |
2546 | ||
2547 | constp = false; | |
2548 | volatilep = false; | |
2549 | switch (**pp) | |
2550 | { | |
2551 | case 'A': | |
2552 | /* Normal function. */ | |
2553 | ++*pp; | |
2554 | break; | |
2555 | case 'B': | |
2556 | /* const member function. */ | |
2557 | constp = true; | |
2558 | ++*pp; | |
2559 | break; | |
2560 | case 'C': | |
2561 | /* volatile member function. */ | |
2562 | volatilep = true; | |
2563 | ++*pp; | |
2564 | break; | |
2565 | case 'D': | |
2566 | /* const volatile member function. */ | |
2567 | constp = true; | |
2568 | volatilep = true; | |
2569 | ++*pp; | |
2570 | break; | |
2571 | case '*': | |
2572 | case '?': | |
2573 | case '.': | |
2574 | /* File compiled with g++ version 1; no information. */ | |
2575 | break; | |
2576 | default: | |
2577 | warn_stab (orig, "const/volatile indicator missing"); | |
2578 | break; | |
2579 | } | |
2580 | ||
2581 | staticp = false; | |
2582 | switch (**pp) | |
2583 | { | |
2584 | case '*': | |
2585 | /* virtual member function, followed by index. The sign | |
2586 | bit is set to distinguish pointers-to-methods from | |
2587 | virtual function indicies. Since the array is in | |
2588 | words, the quantity must be shifted left by 1 on 16 | |
2589 | bit machine, and by 2 on 32 bit machine, forcing the | |
2590 | sign bit out, and usable as a valid index into the | |
2591 | array. Remove the sign bit here. */ | |
2592 | ++*pp; | |
2593 | voffset = parse_number (pp, (boolean *) NULL); | |
2594 | if (**pp != ';') | |
2595 | { | |
2596 | bad_stab (orig); | |
2597 | return false; | |
2598 | } | |
2599 | ++*pp; | |
2600 | voffset &= 0x7fffffff; | |
2601 | voffset += 2; | |
2602 | ||
2603 | if (**pp == ';' || *pp == '\0') | |
2604 | { | |
2605 | /* Must be g++ version 1. */ | |
2606 | context = DEBUG_TYPE_NULL; | |
2607 | } | |
2608 | else | |
2609 | { | |
2610 | /* Figure out from whence this virtual function | |
2611 | came. It may belong to virtual function table of | |
2612 | one of its baseclasses. */ | |
1ff0de45 ILT |
2613 | look_ahead_type = parse_stab_type (dhandle, info, |
2614 | (const char *) NULL, | |
2615 | pp, | |
e1c14599 ILT |
2616 | (debug_type **) NULL); |
2617 | if (**pp == ':') | |
2618 | { | |
2619 | /* g++ version 1 overloaded methods. */ | |
2620 | } | |
2621 | else | |
2622 | { | |
2623 | context = look_ahead_type; | |
2624 | look_ahead_type = DEBUG_TYPE_NULL; | |
2625 | if (**pp != ';') | |
2626 | { | |
2627 | bad_stab (orig); | |
2628 | return false; | |
2629 | } | |
2630 | ++*pp; | |
2631 | } | |
2632 | } | |
2633 | break; | |
2634 | ||
2635 | case '?': | |
2636 | /* static member function. */ | |
2637 | ++*pp; | |
2638 | staticp = true; | |
2639 | voffset = 0; | |
e1c14599 ILT |
2640 | context = DEBUG_TYPE_NULL; |
2641 | break; | |
2642 | ||
2643 | default: | |
2644 | warn_stab (orig, "member function type missing"); | |
2645 | voffset = 0; | |
2646 | context = DEBUG_TYPE_NULL; | |
2647 | break; | |
2648 | ||
2649 | case '.': | |
2650 | ++*pp; | |
2651 | voffset = 0; | |
2652 | context = DEBUG_TYPE_NULL; | |
2653 | break; | |
2654 | } | |
2655 | ||
d3023c8f ILT |
2656 | /* If this is a method type which is not a stub--that is, |
2657 | the argument types are fully specified--then the argtypes | |
2658 | string is actually the physical name of the function. | |
2659 | Otherwise, the argtypes string is the mangled from of the | |
2660 | argument types, and the physical name of the function, | |
2661 | and the argument types, must be deduced from it. */ | |
2662 | ||
2663 | if (debug_get_type_kind (dhandle, type) == DEBUG_KIND_METHOD | |
2664 | && debug_get_parameter_types (dhandle, type) != NULL) | |
2665 | physname = argtypes; | |
2666 | else | |
2667 | { | |
2668 | debug_type class_type, return_type; | |
2669 | ||
2670 | class_type = stab_find_type (dhandle, info, typenums); | |
2671 | if (class_type == DEBUG_TYPE_NULL) | |
2672 | return false; | |
2673 | return_type = debug_get_return_type (dhandle, type); | |
2674 | if (return_type == DEBUG_TYPE_NULL) | |
2675 | { | |
2676 | bad_stab (orig); | |
2677 | return false; | |
2678 | } | |
2679 | type = parse_stab_argtypes (dhandle, info, class_type, name, | |
2680 | tagname, return_type, argtypes, | |
2681 | constp, volatilep, &physname); | |
2682 | if (type == DEBUG_TYPE_NULL) | |
2683 | return false; | |
2684 | } | |
2685 | ||
e1c14599 ILT |
2686 | if (cvars + 1 >= allocvars) |
2687 | { | |
2688 | allocvars += 10; | |
2689 | variants = ((debug_method_variant *) | |
2690 | xrealloc ((PTR) variants, | |
2691 | allocvars * sizeof *variants)); | |
2692 | } | |
2693 | ||
2694 | if (! staticp) | |
d3023c8f | 2695 | variants[cvars] = debug_make_method_variant (dhandle, physname, |
e1c14599 ILT |
2696 | type, visibility, |
2697 | constp, volatilep, | |
2698 | voffset, context); | |
2699 | else | |
2700 | variants[cvars] = debug_make_static_method_variant (dhandle, | |
d3023c8f | 2701 | physname, |
e1c14599 ILT |
2702 | type, |
2703 | visibility, | |
2704 | constp, | |
2705 | volatilep); | |
2706 | if (variants[cvars] == DEBUG_METHOD_VARIANT_NULL) | |
2707 | return false; | |
2708 | ||
2709 | ++cvars; | |
2710 | } | |
2711 | while (**pp != ';' && **pp != '\0'); | |
2712 | ||
2713 | variants[cvars] = DEBUG_METHOD_VARIANT_NULL; | |
2714 | ||
2715 | if (**pp != '\0') | |
2716 | ++*pp; | |
2717 | ||
2718 | if (c + 1 >= alloc) | |
2719 | { | |
2720 | alloc += 10; | |
2721 | methods = ((debug_method *) | |
2722 | xrealloc ((PTR) methods, alloc * sizeof *methods)); | |
2723 | } | |
2724 | ||
2725 | methods[c] = debug_make_method (dhandle, name, variants); | |
2726 | ||
2727 | ++c; | |
2728 | } | |
2729 | ||
2730 | if (methods != NULL) | |
2731 | methods[c] = DEBUG_METHOD_NULL; | |
2732 | ||
2733 | *retp = methods; | |
2734 | ||
2735 | return true; | |
2736 | } | |
2737 | ||
d3023c8f ILT |
2738 | /* Parse a string representing argument types for a method. Stabs |
2739 | tries to save space by packing argument types into a mangled | |
2740 | string. This string should give us enough information to extract | |
2741 | both argument types and the physical name of the function, given | |
2742 | the tag name. */ | |
2743 | ||
2744 | static debug_type | |
2745 | parse_stab_argtypes (dhandle, info, class_type, fieldname, tagname, | |
2746 | return_type, argtypes, constp, volatilep, pphysname) | |
2747 | PTR dhandle; | |
2748 | struct stab_handle *info; | |
2749 | debug_type class_type; | |
2750 | const char *fieldname; | |
2751 | const char *tagname; | |
2752 | debug_type return_type; | |
2753 | const char *argtypes; | |
2754 | boolean constp; | |
2755 | boolean volatilep; | |
2756 | const char **pphysname; | |
2757 | { | |
2758 | boolean is_full_physname_constructor; | |
2759 | boolean is_constructor; | |
2760 | boolean is_destructor; | |
2761 | debug_type *args; | |
2762 | ||
2763 | /* Constructors are sometimes handled specially. */ | |
2764 | is_full_physname_constructor = ((argtypes[0] == '_' | |
2765 | && argtypes[1] == '_' | |
2766 | && (isdigit ((unsigned char) argtypes[2]) | |
2767 | || argtypes[2] == 'Q' | |
2768 | || argtypes[2] == 't')) | |
2769 | || strncmp (argtypes, "__ct", 4) == 0); | |
2770 | ||
2771 | is_constructor = (is_full_physname_constructor | |
2772 | || (tagname != NULL | |
2773 | && strcmp (fieldname, tagname) == 0)); | |
2774 | is_destructor = ((argtypes[0] == '_' | |
2775 | && (argtypes[1] == '$' || argtypes[1] == '.') | |
2776 | && argtypes[2] == '_') | |
2777 | || strncmp (argtypes, "__dt", 4) == 0); | |
2778 | ||
2779 | if (is_destructor || is_full_physname_constructor) | |
2780 | *pphysname = argtypes; | |
2781 | else | |
2782 | { | |
2783 | unsigned int len; | |
2784 | const char *const_prefix; | |
2785 | const char *volatile_prefix; | |
2786 | char buf[20]; | |
2787 | unsigned int mangled_name_len; | |
2788 | char *physname; | |
2789 | ||
2790 | len = tagname == NULL ? 0 : strlen (tagname); | |
2791 | const_prefix = constp ? "C" : ""; | |
2792 | volatile_prefix = volatilep ? "V" : ""; | |
2793 | ||
2794 | if (len == 0) | |
2795 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
2796 | else if (tagname != NULL && strchr (tagname, '<') != NULL) | |
2797 | { | |
2798 | /* Template methods are fully mangled. */ | |
2799 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
2800 | tagname = NULL; | |
2801 | len = 0; | |
2802 | } | |
2803 | else | |
2804 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
2805 | ||
2806 | mangled_name_len = ((is_constructor ? 0 : strlen (fieldname)) | |
2807 | + strlen (buf) | |
2808 | + len | |
2809 | + strlen (argtypes) | |
2810 | + 1); | |
2811 | ||
2812 | if (fieldname[0] == 'o' | |
2813 | && fieldname[1] == 'p' | |
2814 | && (fieldname[2] == '$' || fieldname[2] == '.')) | |
2815 | { | |
2816 | const char *opname; | |
2817 | ||
2818 | opname = cplus_mangle_opname (fieldname + 3, 0); | |
2819 | if (opname == NULL) | |
2820 | { | |
2821 | fprintf (stderr, "No mangling for \"%s\"\n", fieldname); | |
2822 | return DEBUG_TYPE_NULL; | |
2823 | } | |
2824 | mangled_name_len += strlen (opname); | |
2825 | physname = (char *) xmalloc (mangled_name_len); | |
2826 | strncpy (physname, fieldname, 3); | |
2827 | strcpy (physname + 3, opname); | |
2828 | } | |
2829 | else | |
2830 | { | |
2831 | physname = (char *) xmalloc (mangled_name_len); | |
2832 | if (is_constructor) | |
2833 | physname[0] = '\0'; | |
2834 | else | |
2835 | strcpy (physname, fieldname); | |
2836 | } | |
2837 | ||
2838 | strcat (physname, buf); | |
2839 | if (tagname != NULL) | |
2840 | strcat (physname, tagname); | |
2841 | strcat (physname, argtypes); | |
2842 | ||
2843 | *pphysname = physname; | |
2844 | } | |
2845 | ||
2846 | if (*argtypes == '\0') | |
2847 | { | |
2848 | args = (debug_type *) xmalloc (sizeof *args); | |
2849 | *args = NULL; | |
2850 | return debug_make_method_type (dhandle, return_type, class_type, args); | |
2851 | } | |
2852 | ||
2853 | args = stab_demangle_argtypes (dhandle, info, *pphysname); | |
2854 | if (args == NULL) | |
2855 | return DEBUG_TYPE_NULL; | |
2856 | ||
2857 | return debug_make_method_type (dhandle, return_type, class_type, args); | |
2858 | } | |
2859 | ||
e1c14599 ILT |
2860 | /* The tail end of stabs for C++ classes that contain a virtual function |
2861 | pointer contains a tilde, a %, and a type number. | |
2862 | The type number refers to the base class (possibly this class itself) which | |
2863 | contains the vtable pointer for the current class. | |
2864 | ||
2865 | This function is called when we have parsed all the method declarations, | |
2866 | so we can look for the vptr base class info. */ | |
2867 | ||
2868 | static boolean | |
2869 | parse_stab_tilde_field (dhandle, info, pp, typenums, retvptrbase, retownvptr) | |
2870 | PTR dhandle; | |
2871 | struct stab_handle *info; | |
2872 | const char **pp; | |
2873 | const int *typenums; | |
2874 | debug_type *retvptrbase; | |
2875 | boolean *retownvptr; | |
2876 | { | |
2877 | const char *orig; | |
2878 | const char *hold; | |
2879 | int vtypenums[2]; | |
2880 | ||
2881 | *retvptrbase = DEBUG_TYPE_NULL; | |
2882 | *retownvptr = false; | |
2883 | ||
2884 | orig = *pp; | |
2885 | ||
2886 | /* If we are positioned at a ';', then skip it. */ | |
2887 | if (**pp == ';') | |
2888 | ++*pp; | |
2889 | ||
2890 | if (**pp != '~') | |
2891 | return true; | |
2892 | ||
2893 | ++*pp; | |
2894 | ||
2895 | if (**pp == '=' || **pp == '+' || **pp == '-') | |
2896 | { | |
2897 | /* Obsolete flags that used to indicate the presence of | |
2898 | constructors and/or destructors. */ | |
2899 | ++*pp; | |
2900 | } | |
2901 | ||
2902 | if (**pp != '%') | |
2903 | return true; | |
2904 | ||
2905 | ++*pp; | |
2906 | ||
2907 | hold = *pp; | |
2908 | ||
2909 | /* The next number is the type number of the base class (possibly | |
2910 | our own class) which supplies the vtable for this class. */ | |
2911 | if (! parse_stab_type_number (pp, vtypenums)) | |
2912 | return false; | |
2913 | ||
2914 | if (vtypenums[0] == typenums[0] | |
2915 | && vtypenums[1] == typenums[1]) | |
2916 | *retownvptr = true; | |
2917 | else | |
2918 | { | |
2919 | debug_type vtype; | |
2920 | const char *p; | |
2921 | ||
2922 | *pp = hold; | |
2923 | ||
1ff0de45 ILT |
2924 | vtype = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
2925 | (debug_type **) NULL); | |
e1c14599 ILT |
2926 | for (p = *pp; *p != ';' && *p != '\0'; p++) |
2927 | ; | |
2928 | if (*p != ';') | |
2929 | { | |
2930 | bad_stab (orig); | |
2931 | return false; | |
2932 | } | |
2933 | ||
2934 | *retvptrbase = vtype; | |
2935 | ||
2936 | *pp = p + 1; | |
2937 | } | |
2938 | ||
2939 | return true; | |
2940 | } | |
2941 | ||
2942 | /* Read a definition of an array type. */ | |
2943 | ||
2944 | static debug_type | |
2945 | parse_stab_array_type (dhandle, info, pp, stringp) | |
2946 | PTR dhandle; | |
2947 | struct stab_handle *info; | |
2948 | const char **pp; | |
2949 | boolean stringp; | |
2950 | { | |
2951 | const char *orig; | |
2952 | debug_type index_type; | |
2953 | boolean adjustable; | |
2954 | bfd_signed_vma lower, upper; | |
2955 | debug_type element_type; | |
2956 | ||
2957 | /* Format of an array type: | |
2958 | "ar<index type>;lower;upper;<array_contents_type>". | |
2959 | OS9000: "arlower,upper;<array_contents_type>". | |
2960 | ||
2961 | Fortran adjustable arrays use Adigits or Tdigits for lower or upper; | |
2962 | for these, produce a type like float[][]. */ | |
2963 | ||
2964 | orig = *pp; | |
2965 | ||
2966 | /* FIXME: gdb checks os9k_stabs here. */ | |
2967 | ||
1ff0de45 ILT |
2968 | index_type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
2969 | (debug_type **) NULL); | |
e1c14599 ILT |
2970 | if (**pp != ';') |
2971 | { | |
2972 | bad_stab (orig); | |
2973 | return DEBUG_TYPE_NULL; | |
2974 | } | |
2975 | ++*pp; | |
2976 | ||
2977 | adjustable = false; | |
2978 | ||
2979 | if (! isdigit ((unsigned char) **pp) && **pp != '-') | |
2980 | { | |
2981 | ++*pp; | |
2982 | adjustable = true; | |
2983 | } | |
2984 | ||
2985 | lower = (bfd_signed_vma) parse_number (pp, (boolean *) NULL); | |
2986 | if (**pp != ';') | |
2987 | { | |
2988 | bad_stab (orig); | |
2989 | return false; | |
2990 | } | |
2991 | ++*pp; | |
2992 | ||
2993 | if (! isdigit ((unsigned char) **pp) && **pp != '-') | |
2994 | { | |
2995 | ++*pp; | |
2996 | adjustable = true; | |
2997 | } | |
2998 | ||
2999 | upper = (bfd_signed_vma) parse_number (pp, (boolean *) NULL); | |
3000 | if (**pp != ';') | |
3001 | { | |
3002 | bad_stab (orig); | |
3003 | return false; | |
3004 | } | |
3005 | ++*pp; | |
3006 | ||
1ff0de45 ILT |
3007 | element_type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
3008 | (debug_type **) NULL); | |
e1c14599 ILT |
3009 | if (element_type == DEBUG_TYPE_NULL) |
3010 | return false; | |
3011 | ||
3012 | if (adjustable) | |
3013 | { | |
3014 | lower = 0; | |
3015 | upper = -1; | |
3016 | } | |
3017 | ||
3018 | return debug_make_array_type (dhandle, element_type, index_type, lower, | |
3019 | upper, stringp); | |
3020 | } | |
3021 | ||
3022 | /* Keep a stack of N_BINCL include files. */ | |
3023 | ||
3024 | struct bincl_file | |
3025 | { | |
3026 | struct bincl_file *next; | |
3027 | const char *name; | |
3028 | }; | |
3029 | ||
3030 | /* Start a new N_BINCL file, pushing it onto the stack. */ | |
3031 | ||
3032 | static void | |
3033 | push_bincl (info, name) | |
3034 | struct stab_handle *info; | |
3035 | const char *name; | |
3036 | { | |
3037 | struct bincl_file *n; | |
3038 | ||
3039 | n = (struct bincl_file *) xmalloc (sizeof *n); | |
3040 | n->next = info->bincl_stack; | |
3041 | n->name = name; | |
3042 | info->bincl_stack = n; | |
3043 | ||
3044 | ++info->files; | |
3045 | info->file_types = ((struct stab_types **) | |
3046 | xrealloc ((PTR) info->file_types, | |
3047 | (info->files | |
3048 | * sizeof *info->file_types))); | |
3049 | info->file_types[info->files - 1] = NULL; | |
3050 | } | |
3051 | ||
3052 | /* Finish an N_BINCL file, at an N_EINCL, popping the name off the | |
3053 | stack. */ | |
3054 | ||
3055 | static const char * | |
3056 | pop_bincl (info) | |
3057 | struct stab_handle *info; | |
3058 | { | |
3059 | struct bincl_file *o; | |
3060 | ||
3061 | o = info->bincl_stack; | |
3062 | if (o == NULL) | |
3063 | return info->main_filename; | |
3064 | info->bincl_stack = o->next; | |
3065 | free (o); | |
3066 | if (info->bincl_stack == NULL) | |
3067 | return info->main_filename; | |
3068 | return info->bincl_stack->name; | |
3069 | } | |
3070 | ||
3071 | /* Handle a variable definition. gcc emits variable definitions for a | |
3072 | block before the N_LBRAC, so we must hold onto them until we see | |
3073 | it. The SunPRO compiler emits variable definitions after the | |
3074 | N_LBRAC, so we can call debug_record_variable immediately. */ | |
3075 | ||
3076 | static boolean | |
3077 | stab_record_variable (dhandle, info, name, type, kind, val) | |
3078 | PTR dhandle; | |
3079 | struct stab_handle *info; | |
3080 | const char *name; | |
3081 | debug_type type; | |
3082 | enum debug_var_kind kind; | |
3083 | bfd_vma val; | |
3084 | { | |
3085 | struct stab_pending_var *v; | |
3086 | ||
d3023c8f ILT |
3087 | if ((kind == DEBUG_GLOBAL || kind == DEBUG_STATIC) |
3088 | || ! info->within_function | |
e1c14599 ILT |
3089 | || (info->gcc_compiled == 0 && info->n_opt_found)) |
3090 | return debug_record_variable (dhandle, name, type, kind, val); | |
3091 | ||
3092 | v = (struct stab_pending_var *) xmalloc (sizeof *v); | |
3093 | memset (v, 0, sizeof *v); | |
3094 | ||
3095 | v->next = info->pending; | |
3096 | v->name = name; | |
3097 | v->type = type; | |
3098 | v->kind = kind; | |
3099 | v->val = val; | |
3100 | info->pending = v; | |
3101 | ||
3102 | return true; | |
3103 | } | |
3104 | ||
3105 | /* Emit pending variable definitions. This is called after we see the | |
3106 | N_LBRAC that starts the block. */ | |
3107 | ||
3108 | static boolean | |
3109 | stab_emit_pending_vars (dhandle, info) | |
3110 | PTR dhandle; | |
3111 | struct stab_handle *info; | |
3112 | { | |
3113 | struct stab_pending_var *v; | |
3114 | ||
3115 | v = info->pending; | |
3116 | while (v != NULL) | |
3117 | { | |
3118 | struct stab_pending_var *next; | |
3119 | ||
3120 | if (! debug_record_variable (dhandle, v->name, v->type, v->kind, v->val)) | |
3121 | return false; | |
3122 | ||
3123 | next = v->next; | |
3124 | free (v); | |
3125 | v = next; | |
3126 | } | |
3127 | ||
3128 | info->pending = NULL; | |
3129 | ||
3130 | return true; | |
3131 | } | |
3132 | ||
3133 | /* Find the slot for a type in the database. */ | |
3134 | ||
3135 | static debug_type * | |
3136 | stab_find_slot (info, typenums) | |
3137 | struct stab_handle *info; | |
3138 | const int *typenums; | |
3139 | { | |
3140 | int filenum; | |
3141 | int index; | |
3142 | struct stab_types **ps; | |
3143 | ||
3144 | filenum = typenums[0]; | |
3145 | index = typenums[1]; | |
3146 | ||
3147 | if (filenum < 0 || (unsigned int) filenum >= info->files) | |
3148 | { | |
3149 | fprintf (stderr, "Type file number %d out of range\n", filenum); | |
3150 | return NULL; | |
3151 | } | |
3152 | if (index < 0) | |
3153 | { | |
3154 | fprintf (stderr, "Type index number %d out of range\n", index); | |
3155 | return NULL; | |
3156 | } | |
3157 | ||
3158 | ps = info->file_types + filenum; | |
3159 | ||
3160 | while (index >= STAB_TYPES_SLOTS) | |
3161 | { | |
3162 | if (*ps == NULL) | |
3163 | { | |
3164 | *ps = (struct stab_types *) xmalloc (sizeof **ps); | |
3165 | memset (*ps, 0, sizeof **ps); | |
3166 | } | |
3167 | ps = &(*ps)->next; | |
3168 | index -= STAB_TYPES_SLOTS; | |
3169 | } | |
3170 | if (*ps == NULL) | |
3171 | { | |
3172 | *ps = (struct stab_types *) xmalloc (sizeof **ps); | |
3173 | memset (*ps, 0, sizeof **ps); | |
3174 | } | |
3175 | ||
3176 | return (*ps)->types + index; | |
3177 | } | |
3178 | ||
3179 | /* Find a type given a type number. If the type has not been | |
3180 | allocated yet, create an indirect type. */ | |
3181 | ||
3182 | static debug_type | |
3183 | stab_find_type (dhandle, info, typenums) | |
3184 | PTR dhandle; | |
3185 | struct stab_handle *info; | |
3186 | const int *typenums; | |
3187 | { | |
3188 | debug_type *slot; | |
3189 | ||
3190 | if (typenums[0] == 0 && typenums[1] < 0) | |
3191 | { | |
3192 | /* A negative type number indicates an XCOFF builtin type. */ | |
3193 | return stab_xcoff_builtin_type (dhandle, info, typenums[1]); | |
3194 | } | |
3195 | ||
3196 | slot = stab_find_slot (info, typenums); | |
3197 | if (slot == NULL) | |
3198 | return DEBUG_TYPE_NULL; | |
3199 | ||
3200 | if (*slot == DEBUG_TYPE_NULL) | |
3201 | return debug_make_indirect_type (dhandle, slot, (const char *) NULL); | |
3202 | ||
3203 | return *slot; | |
3204 | } | |
3205 | ||
3206 | /* Record that a given type number refers to a given type. */ | |
3207 | ||
3208 | static boolean | |
3209 | stab_record_type (dhandle, info, typenums, type) | |
3210 | PTR dhandle; | |
3211 | struct stab_handle *info; | |
3212 | const int *typenums; | |
3213 | debug_type type; | |
3214 | { | |
3215 | debug_type *slot; | |
3216 | ||
3217 | slot = stab_find_slot (info, typenums); | |
3218 | if (slot == NULL) | |
3219 | return false; | |
3220 | ||
3221 | /* gdb appears to ignore type redefinitions, so we do as well. */ | |
3222 | ||
3223 | *slot = type; | |
3224 | ||
3225 | return true; | |
3226 | } | |
3227 | ||
3228 | /* Return an XCOFF builtin type. */ | |
3229 | ||
3230 | static debug_type | |
3231 | stab_xcoff_builtin_type (dhandle, info, typenum) | |
3232 | PTR dhandle; | |
3233 | struct stab_handle *info; | |
3234 | int typenum; | |
3235 | { | |
3236 | debug_type rettype; | |
3237 | const char *name; | |
3238 | ||
3239 | if (typenum >= 0 || typenum < -XCOFF_TYPE_COUNT) | |
3240 | { | |
3241 | fprintf (stderr, "Unrecognized XCOFF type %d\n", typenum); | |
3242 | return DEBUG_TYPE_NULL; | |
3243 | } | |
3244 | if (info->xcoff_types[-typenum] != NULL) | |
3245 | return info->xcoff_types[-typenum]; | |
3246 | ||
3247 | switch (-typenum) | |
3248 | { | |
3249 | case 1: | |
3250 | /* The size of this and all the other types are fixed, defined | |
3251 | by the debugging format. */ | |
3252 | name = "int"; | |
3253 | rettype = debug_make_int_type (dhandle, 4, false); | |
3254 | break; | |
3255 | case 2: | |
3256 | name = "char"; | |
3257 | rettype = debug_make_int_type (dhandle, 1, false); | |
3258 | break; | |
3259 | case 3: | |
3260 | name = "short"; | |
3261 | rettype = debug_make_int_type (dhandle, 2, false); | |
3262 | break; | |
3263 | case 4: | |
3264 | name = "long"; | |
3265 | rettype = debug_make_int_type (dhandle, 4, false); | |
3266 | break; | |
3267 | case 5: | |
3268 | name = "unsigned char"; | |
3269 | rettype = debug_make_int_type (dhandle, 1, true); | |
3270 | break; | |
3271 | case 6: | |
3272 | name = "signed char"; | |
3273 | rettype = debug_make_int_type (dhandle, 1, false); | |
3274 | break; | |
3275 | case 7: | |
3276 | name = "unsigned short"; | |
3277 | rettype = debug_make_int_type (dhandle, 2, true); | |
3278 | break; | |
3279 | case 8: | |
3280 | name = "unsigned int"; | |
3281 | rettype = debug_make_int_type (dhandle, 4, true); | |
3282 | break; | |
3283 | case 9: | |
3284 | name = "unsigned"; | |
3285 | rettype = debug_make_int_type (dhandle, 4, true); | |
3286 | case 10: | |
3287 | name = "unsigned long"; | |
3288 | rettype = debug_make_int_type (dhandle, 4, true); | |
3289 | break; | |
3290 | case 11: | |
3291 | name = "void"; | |
3292 | rettype = debug_make_void_type (dhandle); | |
3293 | break; | |
3294 | case 12: | |
3295 | /* IEEE single precision (32 bit). */ | |
3296 | name = "float"; | |
3297 | rettype = debug_make_float_type (dhandle, 4); | |
3298 | break; | |
3299 | case 13: | |
3300 | /* IEEE double precision (64 bit). */ | |
3301 | name = "double"; | |
3302 | rettype = debug_make_float_type (dhandle, 8); | |
3303 | break; | |
3304 | case 14: | |
3305 | /* This is an IEEE double on the RS/6000, and different machines | |
3306 | with different sizes for "long double" should use different | |
3307 | negative type numbers. See stabs.texinfo. */ | |
3308 | name = "long double"; | |
3309 | rettype = debug_make_float_type (dhandle, 8); | |
3310 | break; | |
3311 | case 15: | |
3312 | name = "integer"; | |
3313 | rettype = debug_make_int_type (dhandle, 4, false); | |
3314 | break; | |
3315 | case 16: | |
3316 | name = "boolean"; | |
3317 | rettype = debug_make_bool_type (dhandle, 4); | |
3318 | break; | |
3319 | case 17: | |
3320 | name = "short real"; | |
3321 | rettype = debug_make_float_type (dhandle, 4); | |
3322 | break; | |
3323 | case 18: | |
3324 | name = "real"; | |
3325 | rettype = debug_make_float_type (dhandle, 8); | |
3326 | break; | |
3327 | case 19: | |
3328 | /* FIXME */ | |
3329 | name = "stringptr"; | |
3330 | rettype = NULL; | |
3331 | break; | |
3332 | case 20: | |
3333 | /* FIXME */ | |
3334 | name = "character"; | |
3335 | rettype = debug_make_int_type (dhandle, 1, true); | |
3336 | break; | |
3337 | case 21: | |
3338 | name = "logical*1"; | |
3339 | rettype = debug_make_bool_type (dhandle, 1); | |
3340 | break; | |
3341 | case 22: | |
3342 | name = "logical*2"; | |
3343 | rettype = debug_make_bool_type (dhandle, 2); | |
3344 | break; | |
3345 | case 23: | |
3346 | name = "logical*4"; | |
3347 | rettype = debug_make_bool_type (dhandle, 4); | |
3348 | break; | |
3349 | case 24: | |
3350 | name = "logical"; | |
3351 | rettype = debug_make_bool_type (dhandle, 4); | |
3352 | break; | |
3353 | case 25: | |
3354 | /* Complex type consisting of two IEEE single precision values. */ | |
3355 | name = "complex"; | |
3356 | rettype = debug_make_complex_type (dhandle, 8); | |
3357 | break; | |
3358 | case 26: | |
3359 | /* Complex type consisting of two IEEE double precision values. */ | |
3360 | name = "double complex"; | |
3361 | rettype = debug_make_complex_type (dhandle, 16); | |
3362 | break; | |
3363 | case 27: | |
3364 | name = "integer*1"; | |
3365 | rettype = debug_make_int_type (dhandle, 1, false); | |
3366 | break; | |
3367 | case 28: | |
3368 | name = "integer*2"; | |
3369 | rettype = debug_make_int_type (dhandle, 2, false); | |
3370 | break; | |
3371 | case 29: | |
3372 | name = "integer*4"; | |
3373 | rettype = debug_make_int_type (dhandle, 4, false); | |
3374 | break; | |
3375 | case 30: | |
3376 | /* FIXME */ | |
3377 | name = "wchar"; | |
3378 | rettype = debug_make_int_type (dhandle, 2, false); | |
3379 | break; | |
3380 | case 31: | |
3381 | name = "long long"; | |
3382 | rettype = debug_make_int_type (dhandle, 8, false); | |
3383 | break; | |
3384 | case 32: | |
3385 | name = "unsigned long long"; | |
3386 | rettype = debug_make_int_type (dhandle, 8, true); | |
3387 | break; | |
3388 | case 33: | |
3389 | name = "logical*8"; | |
3390 | rettype = debug_make_bool_type (dhandle, 8); | |
3391 | break; | |
3392 | case 34: | |
3393 | name = "integer*8"; | |
3394 | rettype = debug_make_int_type (dhandle, 8, false); | |
3395 | break; | |
3396 | default: | |
3397 | abort (); | |
3398 | } | |
3399 | ||
3400 | rettype = debug_name_type (dhandle, name, rettype); | |
3401 | ||
3402 | info->xcoff_types[-typenum] = rettype; | |
3403 | ||
3404 | return rettype; | |
3405 | } | |
d3023c8f ILT |
3406 | |
3407 | /* Find or create a tagged type. */ | |
3408 | ||
3409 | static debug_type | |
3410 | stab_find_tagged_type (dhandle, info, p, len, kind) | |
3411 | PTR dhandle; | |
3412 | struct stab_handle *info; | |
3413 | const char *p; | |
3414 | int len; | |
3415 | enum debug_type_kind kind; | |
3416 | { | |
3417 | char *name; | |
3418 | debug_type dtype; | |
3419 | struct stab_tag *st; | |
3420 | ||
3421 | name = savestring (p, len); | |
3422 | ||
3423 | /* We pass DEBUG_KIND_ILLEGAL because we want all tags in the same | |
3424 | namespace. This is right for C, and I don't know how to handle | |
3425 | other languages. FIXME. */ | |
3426 | dtype = debug_find_tagged_type (dhandle, name, DEBUG_KIND_ILLEGAL); | |
3427 | if (dtype != DEBUG_TYPE_NULL) | |
3428 | { | |
3429 | free (name); | |
3430 | return dtype; | |
3431 | } | |
3432 | ||
3433 | /* We need to allocate an entry on the undefined tag list. */ | |
3434 | for (st = info->tags; st != NULL; st = st->next) | |
3435 | { | |
3436 | if (st->name[0] == name[0] | |
3437 | && strcmp (st->name, name) == 0) | |
3438 | { | |
3439 | if (st->kind == DEBUG_KIND_ILLEGAL) | |
3440 | st->kind = kind; | |
3441 | free (name); | |
3442 | break; | |
3443 | } | |
3444 | } | |
3445 | if (st == NULL) | |
3446 | { | |
3447 | st = (struct stab_tag *) xmalloc (sizeof *st); | |
3448 | memset (st, 0, sizeof *st); | |
3449 | ||
3450 | st->next = info->tags; | |
3451 | st->name = name; | |
3452 | st->kind = kind; | |
3453 | st->slot = DEBUG_TYPE_NULL; | |
3454 | st->type = debug_make_indirect_type (dhandle, &st->slot, name); | |
3455 | info->tags = st; | |
3456 | } | |
3457 | ||
3458 | return st->type; | |
3459 | } | |
3460 | \f | |
3461 | /* In order to get the correct argument types for a stubbed method, we | |
3462 | need to extract the argument types from a C++ mangled string. | |
3463 | Since the argument types can refer back to the return type, this | |
3464 | means that we must demangle the entire physical name. In gdb this | |
3465 | is done by calling cplus_demangle and running the results back | |
3466 | through the C++ expression parser. Since we have no expression | |
3467 | parser, we must duplicate much of the work of cplus_demangle here. | |
3468 | ||
3469 | We assume that GNU style demangling is used, since this is only | |
3470 | done for method stubs, and only g++ should output that form of | |
3471 | debugging information. */ | |
3472 | ||
3473 | /* This structure is used to hold a pointer to type information which | |
3474 | demangling a string. */ | |
3475 | ||
3476 | struct stab_demangle_typestring | |
3477 | { | |
3478 | /* The start of the type. This is not null terminated. */ | |
3479 | const char *typestring; | |
3480 | /* The length of the type. */ | |
3481 | unsigned int len; | |
3482 | }; | |
3483 | ||
3484 | /* This structure is used to hold information while demangling a | |
3485 | string. */ | |
3486 | ||
3487 | struct stab_demangle_info | |
3488 | { | |
3489 | /* The debugging information handle. */ | |
3490 | PTR dhandle; | |
3491 | /* The stab information handle. */ | |
3492 | struct stab_handle *info; | |
3493 | /* The array of arguments we are building. */ | |
3494 | debug_type *args; | |
3495 | /* The array of types we have remembered. */ | |
3496 | struct stab_demangle_typestring *typestrings; | |
3497 | /* The number of typestrings. */ | |
3498 | unsigned int typestring_count; | |
3499 | /* The number of typestring slots we have allocated. */ | |
3500 | unsigned int typestring_alloc; | |
3501 | }; | |
3502 | ||
3503 | static void stab_bad_demangle PARAMS ((const char *)); | |
3504 | static unsigned int stab_demangle_count PARAMS ((const char **)); | |
3505 | static boolean stab_demangle_get_count | |
3506 | PARAMS ((const char **, unsigned int *)); | |
3507 | static boolean stab_demangle_prefix | |
3508 | PARAMS ((struct stab_demangle_info *, const char **)); | |
3509 | static boolean stab_demangle_function_name | |
3510 | PARAMS ((struct stab_demangle_info *, const char **, const char *)); | |
3511 | static boolean stab_demangle_signature | |
3512 | PARAMS ((struct stab_demangle_info *, const char **)); | |
3513 | static boolean stab_demangle_qualified | |
3514 | PARAMS ((struct stab_demangle_info *, const char **, debug_type *)); | |
3515 | static boolean stab_demangle_template | |
3516 | PARAMS ((struct stab_demangle_info *, const char **)); | |
3517 | static boolean stab_demangle_class | |
3518 | PARAMS ((struct stab_demangle_info *, const char **, const char **)); | |
3519 | static boolean stab_demangle_args | |
3520 | PARAMS ((struct stab_demangle_info *, const char **, debug_type **)); | |
3521 | static boolean stab_demangle_arg | |
3522 | PARAMS ((struct stab_demangle_info *, const char **, debug_type **, | |
3523 | unsigned int *, unsigned int *)); | |
3524 | static boolean stab_demangle_type | |
3525 | PARAMS ((struct stab_demangle_info *, const char **, debug_type *)); | |
3526 | static boolean stab_demangle_fund_type | |
3527 | PARAMS ((struct stab_demangle_info *, const char **, debug_type *)); | |
3528 | static boolean stab_demangle_remember_type | |
3529 | PARAMS ((struct stab_demangle_info *, const char *, int)); | |
3530 | ||
3531 | /* Warn about a bad demangling. */ | |
3532 | ||
3533 | static void | |
3534 | stab_bad_demangle (s) | |
3535 | const char *s; | |
3536 | { | |
3537 | fprintf (stderr, "bad mangled name `%s'\n", s); | |
3538 | } | |
3539 | ||
3540 | /* Get a count from a stab string. */ | |
3541 | ||
3542 | static unsigned int | |
3543 | stab_demangle_count (pp) | |
3544 | const char **pp; | |
3545 | { | |
3546 | unsigned int count; | |
3547 | ||
3548 | count = 0; | |
3549 | while (isdigit ((unsigned char) **pp)) | |
3550 | { | |
3551 | count *= 10; | |
3552 | count += **pp - '0'; | |
3553 | ++*pp; | |
3554 | } | |
3555 | return count; | |
3556 | } | |
3557 | ||
3558 | /* Require a count in a string. The count may be multiple digits, in | |
3559 | which case it must end in an underscore. */ | |
3560 | ||
3561 | static boolean | |
3562 | stab_demangle_get_count (pp, pi) | |
3563 | const char **pp; | |
3564 | unsigned int *pi; | |
3565 | { | |
3566 | if (! isdigit ((unsigned char) **pp)) | |
3567 | return false; | |
3568 | ||
3569 | *pi = **pp - '0'; | |
3570 | ++*pp; | |
3571 | if (isdigit ((unsigned char) **pp)) | |
3572 | { | |
3573 | unsigned int count; | |
3574 | const char *p; | |
3575 | ||
3576 | count = *pi; | |
3577 | p = *pp; | |
3578 | do | |
3579 | { | |
3580 | count *= 10; | |
3581 | count += *p - '0'; | |
3582 | ++p; | |
3583 | } | |
3584 | while (isdigit ((unsigned char) *p)); | |
3585 | if (*p == '_') | |
3586 | { | |
3587 | *pp = p + 1; | |
3588 | *pi = count; | |
3589 | } | |
3590 | } | |
3591 | ||
3592 | return true; | |
3593 | } | |
3594 | ||
3595 | /* This function demangles a physical name, returning a NULL | |
3596 | terminated array of argument types. */ | |
3597 | ||
3598 | static debug_type * | |
3599 | stab_demangle_argtypes (dhandle, info, physname) | |
3600 | PTR dhandle; | |
3601 | struct stab_handle *info; | |
3602 | const char *physname; | |
3603 | { | |
3604 | struct stab_demangle_info minfo; | |
3605 | ||
3606 | minfo.dhandle = dhandle; | |
3607 | minfo.info = info; | |
3608 | minfo.args = NULL; | |
3609 | minfo.typestring_alloc = 10; | |
3610 | minfo.typestrings = ((struct stab_demangle_typestring *) | |
3611 | xmalloc (minfo.typestring_alloc | |
3612 | * sizeof *minfo.typestrings)); | |
3613 | minfo.typestring_count = 0; | |
3614 | ||
3615 | /* cplus_demangle checks for special GNU mangled forms, but we can't | |
3616 | see any of them in mangled method argument types. */ | |
3617 | ||
3618 | if (! stab_demangle_prefix (&minfo, &physname)) | |
3619 | goto error_return; | |
3620 | ||
3621 | if (*physname != '\0') | |
3622 | { | |
3623 | if (! stab_demangle_signature (&minfo, &physname)) | |
3624 | goto error_return; | |
3625 | } | |
3626 | ||
3627 | free (minfo.typestrings); | |
3628 | minfo.typestrings = NULL; | |
3629 | ||
3630 | if (minfo.args == NULL) | |
3631 | fprintf (stderr, "no argument types in mangled string\n"); | |
3632 | ||
3633 | return minfo.args; | |
3634 | ||
3635 | error_return: | |
3636 | if (minfo.typestrings != NULL) | |
3637 | free (minfo.typestrings); | |
3638 | return NULL; | |
3639 | } | |
3640 | ||
3641 | /* Demangle the prefix of the mangled name. */ | |
3642 | ||
3643 | static boolean | |
3644 | stab_demangle_prefix (minfo, pp) | |
3645 | struct stab_demangle_info *minfo; | |
3646 | const char **pp; | |
3647 | { | |
3648 | const char *scan; | |
3649 | unsigned int i; | |
3650 | ||
3651 | /* cplus_demangle checks for global constructors and destructors, | |
3652 | but we can't see them in mangled argument types. */ | |
3653 | ||
3654 | /* Look for `__'. */ | |
3655 | scan = *pp; | |
3656 | do | |
3657 | { | |
3658 | scan = strchr (scan, '_'); | |
3659 | } | |
3660 | while (scan != NULL && *++scan != '_'); | |
3661 | ||
3662 | if (scan == NULL) | |
3663 | { | |
3664 | stab_bad_demangle (*pp); | |
3665 | return false; | |
3666 | } | |
3667 | ||
3668 | --scan; | |
3669 | ||
3670 | /* We found `__'; move ahead to the last contiguous `__' pair. */ | |
3671 | i = strspn (scan, "_"); | |
3672 | if (i > 2) | |
3673 | scan += i - 2; | |
3674 | ||
3675 | if (scan == *pp | |
3676 | && (isdigit ((unsigned char) scan[2]) | |
3677 | || scan[2] == 'Q' | |
3678 | || scan[2] == 't')) | |
3679 | { | |
3680 | /* This is a GNU style constructor name. */ | |
3681 | *pp = scan + 2; | |
3682 | return true; | |
3683 | } | |
3684 | else if (scan == *pp | |
3685 | && ! isdigit ((unsigned char) scan[2]) | |
3686 | && scan[2] != 't') | |
3687 | { | |
3688 | /* Look for the `__' that separates the prefix from the | |
3689 | signature. */ | |
3690 | while (*scan == '_') | |
3691 | ++scan; | |
3692 | scan = strstr (scan, "__"); | |
3693 | if (scan == NULL || scan[2] == '\0') | |
3694 | { | |
3695 | stab_bad_demangle (*pp); | |
3696 | return false; | |
3697 | } | |
3698 | ||
3699 | return stab_demangle_function_name (minfo, pp, scan); | |
3700 | } | |
3701 | else if (scan[2] != '\0') | |
3702 | { | |
3703 | /* The name doesn't start with `__', but it does contain `__'. */ | |
3704 | return stab_demangle_function_name (minfo, pp, scan); | |
3705 | } | |
3706 | else | |
3707 | { | |
3708 | stab_bad_demangle (*pp); | |
3709 | return false; | |
3710 | } | |
3711 | /*NOTREACHED*/ | |
3712 | } | |
3713 | ||
3714 | /* Demangle a function name prefix. The scan argument points to the | |
3715 | double underscore which separates the function name from the | |
3716 | signature. */ | |
3717 | ||
3718 | static boolean | |
3719 | stab_demangle_function_name (minfo, pp, scan) | |
3720 | struct stab_demangle_info *minfo; | |
3721 | const char **pp; | |
3722 | const char *scan; | |
3723 | { | |
3724 | const char *name; | |
3725 | ||
3726 | /* The string from *pp to scan is the name of the function. We | |
3727 | don't care about the name, since we just looking for argument | |
3728 | types. However, for conversion operators, the name may include a | |
3729 | type which we must remember in order to handle backreferences. */ | |
3730 | ||
3731 | name = *pp; | |
3732 | *pp = scan + 2; | |
3733 | ||
3734 | if (*pp - name >= 5 | |
3735 | && strncmp (name, "type", 4) == 0 | |
3736 | && (name[4] == '$' || name[4] == '.')) | |
3737 | { | |
3738 | const char *tem; | |
3739 | ||
3740 | /* This is a type conversion operator. */ | |
3741 | tem = name + 5; | |
3742 | if (! stab_demangle_type (minfo, &tem, (debug_type *) NULL)) | |
3743 | return false; | |
3744 | } | |
3745 | else if (name[0] == '_' | |
3746 | && name[1] == '_' | |
3747 | && name[2] == 'o' | |
3748 | && name[3] == 'p') | |
3749 | { | |
3750 | const char *tem; | |
3751 | ||
3752 | /* This is a type conversion operator. */ | |
3753 | tem = name + 4; | |
3754 | if (! stab_demangle_type (minfo, &tem, (debug_type *) NULL)) | |
3755 | return false; | |
3756 | } | |
3757 | ||
3758 | return true; | |
3759 | } | |
3760 | ||
3761 | /* Demangle the signature. This is where the argument types are | |
3762 | found. */ | |
3763 | ||
3764 | static boolean | |
3765 | stab_demangle_signature (minfo, pp) | |
3766 | struct stab_demangle_info *minfo; | |
3767 | const char **pp; | |
3768 | { | |
3769 | const char *orig; | |
3770 | boolean expect_func, func_done; | |
3771 | const char *hold; | |
3772 | ||
3773 | orig = *pp; | |
3774 | ||
3775 | expect_func = false; | |
3776 | func_done = false; | |
3777 | hold = NULL; | |
3778 | ||
3779 | while (**pp != '\0') | |
3780 | { | |
3781 | switch (**pp) | |
3782 | { | |
3783 | case 'Q': | |
3784 | hold = *pp; | |
3785 | if (! stab_demangle_qualified (minfo, pp, (debug_type *) NULL) | |
3786 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) | |
3787 | return false; | |
3788 | expect_func = true; | |
3789 | hold = NULL; | |
3790 | break; | |
3791 | ||
3792 | case 'S': | |
3793 | /* Static member function. FIXME: Can this happen? */ | |
3794 | if (hold == NULL) | |
3795 | hold = *pp; | |
3796 | ++*pp; | |
3797 | break; | |
3798 | ||
3799 | case 'C': | |
3800 | /* Const member function. */ | |
3801 | if (hold == NULL) | |
3802 | hold = *pp; | |
3803 | ++*pp; | |
3804 | break; | |
3805 | ||
3806 | case '0': case '1': case '2': case '3': case '4': | |
3807 | case '5': case '6': case '7': case '8': case '9': | |
3808 | if (hold == NULL) | |
3809 | hold = *pp; | |
3810 | if (! stab_demangle_class (minfo, pp, (const char **) NULL) | |
3811 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) | |
3812 | return false; | |
3813 | expect_func = true; | |
3814 | hold = NULL; | |
3815 | break; | |
3816 | ||
3817 | case 'F': | |
3818 | /* Function. I don't know if this actually happens with g++ | |
3819 | output. */ | |
3820 | hold = NULL; | |
3821 | func_done = true; | |
3822 | ++*pp; | |
3823 | if (! stab_demangle_args (minfo, pp, &minfo->args)) | |
3824 | return false; | |
3825 | break; | |
3826 | ||
3827 | case 't': | |
3828 | /* Template. */ | |
3829 | if (hold == NULL) | |
3830 | hold = *pp; | |
3831 | if (! stab_demangle_template (minfo, pp) | |
3832 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) | |
3833 | return false; | |
3834 | hold = NULL; | |
3835 | expect_func = true; | |
3836 | break; | |
3837 | ||
3838 | case '_': | |
3839 | /* At the outermost level, we cannot have a return type | |
3840 | specified, so if we run into another '_' at this point we | |
3841 | are dealing with a mangled name that is either bogus, or | |
3842 | has been mangled by some algorithm we don't know how to | |
3843 | deal with. So just reject the entire demangling. */ | |
3844 | stab_bad_demangle (orig); | |
3845 | return false; | |
3846 | ||
3847 | default: | |
3848 | /* Assume we have stumbled onto the first outermost function | |
3849 | argument token, and start processing args. */ | |
3850 | func_done = true; | |
3851 | if (! stab_demangle_args (minfo, pp, &minfo->args)) | |
3852 | return false; | |
3853 | break; | |
3854 | } | |
3855 | ||
3856 | if (expect_func) | |
3857 | { | |
3858 | func_done = true; | |
3859 | if (! stab_demangle_args (minfo, pp, &minfo->args)) | |
3860 | return false; | |
3861 | } | |
3862 | } | |
3863 | ||
3864 | if (! func_done) | |
3865 | { | |
3866 | /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and | |
3867 | bar__3fooi is 'foo::bar(int)'. We get here when we find the | |
3868 | first case, and need to ensure that the '(void)' gets added | |
3869 | to the current declp. */ | |
3870 | if (! stab_demangle_args (minfo, pp, &minfo->args)) | |
3871 | return false; | |
3872 | } | |
3873 | ||
3874 | return true; | |
3875 | } | |
3876 | ||
3877 | /* Demangle a qualified name, such as "Q25Outer5Inner" which is the | |
3878 | mangled form of "Outer::Inner". */ | |
3879 | ||
3880 | static boolean | |
3881 | stab_demangle_qualified (minfo, pp, ptype) | |
3882 | struct stab_demangle_info *minfo; | |
3883 | const char **pp; | |
3884 | debug_type *ptype; | |
3885 | { | |
3886 | const char *orig; | |
3887 | const char *p; | |
3888 | unsigned int qualifiers; | |
3889 | debug_type context; | |
3890 | ||
3891 | orig = *pp; | |
3892 | ||
3893 | switch ((*pp)[1]) | |
3894 | { | |
3895 | case '_': | |
3896 | /* GNU mangled name with more than 9 classes. The count is | |
3897 | preceded by an underscore (to distinguish it from the <= 9 | |
3898 | case) and followed by an underscore. */ | |
3899 | p = *pp + 2; | |
3900 | if (! isdigit ((unsigned char) *p) || *p == '0') | |
3901 | { | |
3902 | stab_bad_demangle (orig); | |
3903 | return false; | |
3904 | } | |
3905 | qualifiers = atoi (p); | |
3906 | while (isdigit ((unsigned char) *p)) | |
3907 | ++p; | |
3908 | if (*p != '_') | |
3909 | { | |
3910 | stab_bad_demangle (orig); | |
3911 | return false; | |
3912 | } | |
3913 | *pp = p + 1; | |
3914 | break; | |
3915 | ||
3916 | case '1': case '2': case '3': case '4': case '5': | |
3917 | case '6': case '7': case '8': case '9': | |
3918 | qualifiers = (*pp)[1] - '0'; | |
3919 | /* Skip an optional underscore after the count. */ | |
3920 | if ((*pp)[2] == '_') | |
3921 | ++*pp; | |
3922 | *pp += 2; | |
3923 | break; | |
3924 | ||
3925 | case '0': | |
3926 | default: | |
3927 | stab_bad_demangle (orig); | |
3928 | return false; | |
3929 | } | |
3930 | ||
3931 | context = DEBUG_TYPE_NULL; | |
3932 | ||
3933 | /* Pick off the names. */ | |
3934 | while (qualifiers-- > 0) | |
3935 | { | |
3936 | if (**pp == '_') | |
3937 | ++*pp; | |
3938 | if (**pp == 't') | |
3939 | { | |
3940 | /* FIXME: I don't know how to handle the ptype != NULL case | |
3941 | here. */ | |
3942 | if (! stab_demangle_template (minfo, pp)) | |
3943 | return false; | |
3944 | } | |
3945 | else | |
3946 | { | |
3947 | unsigned int len; | |
3948 | ||
3949 | len = stab_demangle_count (pp); | |
3950 | if (strlen (*pp) < len) | |
3951 | { | |
3952 | stab_bad_demangle (orig); | |
3953 | return false; | |
3954 | } | |
3955 | ||
3956 | if (ptype != NULL) | |
3957 | { | |
3958 | const debug_field *fields; | |
3959 | ||
3960 | fields = NULL; | |
3961 | if (context != DEBUG_TYPE_NULL) | |
3962 | fields = debug_get_fields (minfo->dhandle, context); | |
3963 | ||
3964 | context = DEBUG_TYPE_NULL; | |
3965 | ||
3966 | if (fields != NULL) | |
3967 | { | |
3968 | char *name; | |
3969 | ||
3970 | /* Try to find the type by looking through the | |
3971 | fields of context until we find a field with the | |
3972 | same type. This ought to work for a class | |
3973 | defined within a class, but it won't work for, | |
3974 | e.g., an enum defined within a class. stabs does | |
3975 | not give us enough information to figure out the | |
3976 | latter case. */ | |
3977 | ||
3978 | name = savestring (*pp, len); | |
3979 | ||
3980 | for (; *fields != DEBUG_FIELD_NULL; fields++) | |
3981 | { | |
3982 | debug_type ft; | |
3983 | const char *dn; | |
3984 | ||
3985 | ft = debug_get_field_type (minfo->dhandle, *fields); | |
3986 | if (ft == NULL) | |
3987 | return false; | |
3988 | dn = debug_get_type_name (minfo->dhandle, ft); | |
3989 | if (dn != NULL && strcmp (dn, name) == 0) | |
3990 | { | |
3991 | context = ft; | |
3992 | break; | |
3993 | } | |
3994 | } | |
3995 | ||
3996 | free (name); | |
3997 | } | |
3998 | ||
3999 | if (context == DEBUG_TYPE_NULL) | |
4000 | { | |
4001 | /* We have to fall back on finding the type by name. | |
4002 | If there are more types to come, then this must | |
4003 | be a class. Otherwise, it could be anything. */ | |
4004 | ||
4005 | if (qualifiers == 0) | |
4006 | { | |
4007 | char *name; | |
4008 | ||
4009 | name = savestring (*pp, len); | |
4010 | context = debug_find_named_type (minfo->dhandle, | |
4011 | name); | |
4012 | free (name); | |
4013 | } | |
4014 | ||
4015 | if (context == DEBUG_TYPE_NULL) | |
4016 | { | |
4017 | context = stab_find_tagged_type (minfo->dhandle, | |
4018 | minfo->info, | |
4019 | *pp, len, | |
4020 | (qualifiers == 0 | |
4021 | ? DEBUG_KIND_ILLEGAL | |
4022 | : DEBUG_KIND_CLASS)); | |
4023 | if (context == DEBUG_TYPE_NULL) | |
4024 | return false; | |
4025 | } | |
4026 | } | |
4027 | } | |
4028 | ||
4029 | *pp += len; | |
4030 | } | |
4031 | } | |
4032 | ||
4033 | if (ptype != NULL) | |
4034 | *ptype = context; | |
4035 | ||
4036 | return true; | |
4037 | } | |
4038 | ||
4039 | /* Demangle a template. */ | |
4040 | ||
4041 | static boolean | |
4042 | stab_demangle_template (minfo, pp) | |
4043 | struct stab_demangle_info *minfo; | |
4044 | const char **pp; | |
4045 | { | |
4046 | const char *orig; | |
4047 | unsigned int r, i; | |
4048 | ||
4049 | orig = *pp; | |
4050 | ||
4051 | ++*pp; | |
4052 | ||
4053 | /* Skip the template name. */ | |
4054 | r = stab_demangle_count (pp); | |
4055 | if (r == 0 || strlen (*pp) < r) | |
4056 | { | |
4057 | stab_bad_demangle (orig); | |
4058 | return false; | |
4059 | } | |
4060 | *pp += r; | |
4061 | ||
4062 | /* Get the size of the parameter list. */ | |
4063 | if (stab_demangle_get_count (pp, &r) == 0) | |
4064 | { | |
4065 | stab_bad_demangle (orig); | |
4066 | return false; | |
4067 | } | |
4068 | ||
4069 | for (i = 0; i < r; i++) | |
4070 | { | |
4071 | if (**pp == 'Z') | |
4072 | { | |
4073 | /* This is a type parameter. */ | |
4074 | ++*pp; | |
4075 | if (! stab_demangle_type (minfo, pp, (debug_type *) NULL)) | |
4076 | return false; | |
4077 | } | |
4078 | else | |
4079 | { | |
4080 | const char *old_p; | |
4081 | boolean pointerp, realp, integralp, charp, boolp; | |
4082 | boolean done; | |
4083 | ||
4084 | old_p = *pp; | |
4085 | pointerp = false; | |
4086 | realp = false; | |
4087 | integralp = false; | |
4088 | charp = false; | |
4089 | boolp = false; | |
4090 | done = false; | |
4091 | ||
4092 | /* This is a value parameter. */ | |
4093 | ||
4094 | if (! stab_demangle_type (minfo, pp, (debug_type *) NULL)) | |
4095 | return false; | |
4096 | ||
4097 | while (*old_p != '\0' && ! done) | |
4098 | { | |
4099 | switch (*old_p) | |
4100 | { | |
4101 | case 'P': | |
4102 | case 'p': | |
4103 | case 'R': | |
4104 | pointerp = true; | |
4105 | done = true; | |
4106 | break; | |
4107 | case 'C': /* Const. */ | |
4108 | case 'S': /* Signed. */ | |
4109 | case 'U': /* Unsigned. */ | |
4110 | case 'V': /* Volatile. */ | |
4111 | case 'F': /* Function. */ | |
4112 | case 'M': /* Member function. */ | |
4113 | case 'O': /* ??? */ | |
4114 | ++old_p; | |
4115 | break; | |
4116 | case 'Q': /* Qualified name. */ | |
4117 | integralp = true; | |
4118 | done = true; | |
4119 | break; | |
4120 | case 'T': /* Remembered type. */ | |
4121 | abort (); | |
4122 | case 'v': /* Void. */ | |
4123 | abort (); | |
4124 | case 'x': /* Long long. */ | |
4125 | case 'l': /* Long. */ | |
4126 | case 'i': /* Int. */ | |
4127 | case 's': /* Short. */ | |
4128 | case 'w': /* Wchar_t. */ | |
4129 | integralp = true; | |
4130 | done = true; | |
4131 | break; | |
4132 | case 'b': /* Bool. */ | |
4133 | boolp = true; | |
4134 | done = true; | |
4135 | break; | |
4136 | case 'c': /* Char. */ | |
4137 | charp = true; | |
4138 | done = true; | |
4139 | break; | |
4140 | case 'r': /* Long double. */ | |
4141 | case 'd': /* Double. */ | |
4142 | case 'f': /* Float. */ | |
4143 | realp = true; | |
4144 | done = true; | |
4145 | break; | |
4146 | default: | |
4147 | /* Assume it's a uder defined integral type. */ | |
4148 | integralp = true; | |
4149 | done = true; | |
4150 | break; | |
4151 | } | |
4152 | } | |
4153 | ||
4154 | if (integralp) | |
4155 | { | |
4156 | if (**pp == 'm') | |
4157 | ++*pp; | |
4158 | while (isdigit ((unsigned char) **pp)) | |
4159 | ++*pp; | |
4160 | } | |
4161 | else if (charp) | |
4162 | { | |
4163 | unsigned int val; | |
4164 | ||
4165 | if (**pp == 'm') | |
4166 | ++*pp; | |
4167 | val = stab_demangle_count (pp); | |
4168 | if (val == 0) | |
4169 | { | |
4170 | stab_bad_demangle (orig); | |
4171 | return false; | |
4172 | } | |
4173 | } | |
4174 | else if (boolp) | |
4175 | { | |
4176 | unsigned int val; | |
4177 | ||
4178 | val = stab_demangle_count (pp); | |
4179 | if (val != 0 && val != 1) | |
4180 | { | |
4181 | stab_bad_demangle (orig); | |
4182 | return false; | |
4183 | } | |
4184 | } | |
4185 | else if (realp) | |
4186 | { | |
4187 | if (**pp == 'm') | |
4188 | ++*pp; | |
4189 | while (isdigit ((unsigned char) **pp)) | |
4190 | ++*pp; | |
4191 | if (**pp == '.') | |
4192 | { | |
4193 | ++*pp; | |
4194 | while (isdigit ((unsigned char) **pp)) | |
4195 | ++*pp; | |
4196 | } | |
4197 | if (**pp == 'e') | |
4198 | { | |
4199 | ++*pp; | |
4200 | while (isdigit ((unsigned char) **pp)) | |
4201 | ++*pp; | |
4202 | } | |
4203 | } | |
4204 | else if (pointerp) | |
4205 | { | |
4206 | unsigned int len; | |
4207 | ||
4208 | if (! stab_demangle_get_count (pp, &len)) | |
4209 | { | |
4210 | stab_bad_demangle (orig); | |
4211 | return false; | |
4212 | } | |
4213 | *pp += len; | |
4214 | } | |
4215 | } | |
4216 | } | |
4217 | ||
4218 | return true; | |
4219 | } | |
4220 | ||
4221 | /* Demangle a class name. */ | |
4222 | ||
4223 | static boolean | |
4224 | stab_demangle_class (minfo, pp, pstart) | |
4225 | struct stab_demangle_info *minfo; | |
4226 | const char **pp; | |
4227 | const char **pstart; | |
4228 | { | |
4229 | const char *orig; | |
4230 | unsigned int n; | |
4231 | ||
4232 | orig = *pp; | |
4233 | ||
4234 | n = stab_demangle_count (pp); | |
4235 | if (strlen (*pp) < n) | |
4236 | { | |
4237 | stab_bad_demangle (orig); | |
4238 | return false; | |
4239 | } | |
4240 | ||
4241 | if (pstart != NULL) | |
4242 | *pstart = *pp; | |
4243 | ||
4244 | *pp += n; | |
4245 | ||
4246 | return true; | |
4247 | } | |
4248 | ||
4249 | /* Demangle function arguments. If the pargs argument is not NULL, it | |
4250 | is set to a NULL terminated array holding the arguments. */ | |
4251 | ||
4252 | static boolean | |
4253 | stab_demangle_args (minfo, pp, pargs) | |
4254 | struct stab_demangle_info *minfo; | |
4255 | const char **pp; | |
4256 | debug_type **pargs; | |
4257 | { | |
4258 | const char *orig; | |
4259 | unsigned int alloc, count; | |
4260 | ||
4261 | orig = *pp; | |
4262 | ||
4263 | alloc = 10; | |
4264 | if (pargs != NULL) | |
4265 | *pargs = (debug_type *) xmalloc (alloc * sizeof **pargs); | |
4266 | count = 0; | |
4267 | ||
4268 | while (**pp != '_' && **pp != '\0' && **pp != 'e') | |
4269 | { | |
4270 | if (**pp == 'N' || **pp == 'T') | |
4271 | { | |
4272 | char temptype; | |
4273 | unsigned int r, t; | |
4274 | ||
4275 | temptype = **pp; | |
4276 | ++*pp; | |
4277 | ||
4278 | if (temptype == 'T') | |
4279 | r = 1; | |
4280 | else | |
4281 | { | |
4282 | if (! stab_demangle_get_count (pp, &r)) | |
4283 | { | |
4284 | stab_bad_demangle (orig); | |
4285 | return false; | |
4286 | } | |
4287 | } | |
4288 | ||
4289 | if (! stab_demangle_get_count (pp, &t)) | |
4290 | { | |
4291 | stab_bad_demangle (orig); | |
4292 | return false; | |
4293 | } | |
4294 | ||
4295 | if (t >= minfo->typestring_count) | |
4296 | { | |
4297 | stab_bad_demangle (orig); | |
4298 | return false; | |
4299 | } | |
4300 | while (r-- > 0) | |
4301 | { | |
4302 | const char *tem; | |
4303 | ||
4304 | tem = minfo->typestrings[t].typestring; | |
4305 | if (! stab_demangle_arg (minfo, &tem, pargs, &count, &alloc)) | |
4306 | return false; | |
4307 | } | |
4308 | } | |
4309 | else | |
4310 | { | |
4311 | if (! stab_demangle_arg (minfo, pp, pargs, &count, &alloc)) | |
4312 | return false; | |
4313 | } | |
4314 | } | |
4315 | ||
4316 | if (**pp == 'e') | |
4317 | { | |
4318 | if (pargs != NULL) | |
4319 | { | |
4320 | debug_type type; | |
4321 | ||
4322 | type = debug_make_ellipsis_type (minfo->dhandle); | |
4323 | if (type == DEBUG_TYPE_NULL) | |
4324 | return false; | |
4325 | ||
4326 | if (count + 1 >= alloc) | |
4327 | { | |
4328 | alloc += 10; | |
4329 | *pargs = ((debug_type *) | |
4330 | xrealloc (*pargs, alloc * sizeof **pargs)); | |
4331 | } | |
4332 | (*pargs)[count] = type; | |
4333 | ++count; | |
4334 | } | |
4335 | ||
4336 | ++*pp; | |
4337 | } | |
4338 | ||
4339 | if (pargs != NULL) | |
4340 | (*pargs)[count] = DEBUG_TYPE_NULL; | |
4341 | ||
4342 | return true; | |
4343 | } | |
4344 | ||
4345 | /* Demangle a single argument. */ | |
4346 | ||
4347 | static boolean | |
4348 | stab_demangle_arg (minfo, pp, pargs, pcount, palloc) | |
4349 | struct stab_demangle_info *minfo; | |
4350 | const char **pp; | |
4351 | debug_type **pargs; | |
4352 | unsigned int *pcount; | |
4353 | unsigned int *palloc; | |
4354 | { | |
4355 | const char *start; | |
4356 | debug_type type; | |
4357 | ||
4358 | start = *pp; | |
4359 | if (! stab_demangle_type (minfo, pp, | |
4360 | pargs == NULL ? (debug_type *) NULL : &type) | |
4361 | || ! stab_demangle_remember_type (minfo, start, *pp - start)) | |
4362 | return false; | |
4363 | ||
4364 | if (pargs != NULL) | |
4365 | { | |
4366 | if (type == DEBUG_TYPE_NULL) | |
4367 | return false; | |
4368 | ||
4369 | if (*pcount + 1 >= *palloc) | |
4370 | { | |
4371 | *palloc += 10; | |
4372 | *pargs = ((debug_type *) | |
4373 | xrealloc (*pargs, *palloc * sizeof **pargs)); | |
4374 | } | |
4375 | (*pargs)[*pcount] = type; | |
4376 | ++*pcount; | |
4377 | } | |
4378 | ||
4379 | return true; | |
4380 | } | |
4381 | ||
4382 | /* Demangle a type. If the ptype argument is not NULL, *ptype is set | |
4383 | to the newly allocated type. */ | |
4384 | ||
4385 | static boolean | |
4386 | stab_demangle_type (minfo, pp, ptype) | |
4387 | struct stab_demangle_info *minfo; | |
4388 | const char **pp; | |
4389 | debug_type *ptype; | |
4390 | { | |
4391 | const char *orig; | |
4392 | ||
4393 | orig = *pp; | |
4394 | ||
4395 | switch (**pp) | |
4396 | { | |
4397 | case 'P': | |
4398 | case 'p': | |
4399 | /* A pointer type. */ | |
4400 | ++*pp; | |
4401 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4402 | return false; | |
4403 | if (ptype != NULL) | |
4404 | *ptype = debug_make_pointer_type (minfo->dhandle, *ptype); | |
4405 | break; | |
4406 | ||
4407 | case 'R': | |
4408 | /* A reference type. */ | |
4409 | ++*pp; | |
4410 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4411 | return false; | |
4412 | if (ptype != NULL) | |
4413 | *ptype = debug_make_reference_type (minfo->dhandle, *ptype); | |
4414 | break; | |
4415 | ||
4416 | case 'A': | |
4417 | /* An array. */ | |
4418 | { | |
4419 | unsigned long high; | |
4420 | ||
4421 | ++*pp; | |
4422 | high = 0; | |
4423 | while (**pp != '\0' && **pp != '_') | |
4424 | { | |
4425 | if (! isdigit ((unsigned char) **pp)) | |
4426 | { | |
4427 | stab_bad_demangle (orig); | |
4428 | return false; | |
4429 | } | |
4430 | high *= 10; | |
4431 | high += **pp - '0'; | |
4432 | ++*pp; | |
4433 | } | |
4434 | if (**pp != '_') | |
4435 | { | |
4436 | stab_bad_demangle (orig); | |
4437 | return false; | |
4438 | } | |
4439 | ++*pp; | |
4440 | ||
4441 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4442 | return false; | |
4443 | if (ptype != NULL) | |
4444 | { | |
4445 | debug_type int_type; | |
4446 | ||
4447 | int_type = debug_find_named_type (minfo->dhandle, "int"); | |
4448 | if (int_type == NULL) | |
4449 | int_type = debug_make_int_type (minfo->dhandle, 4, false); | |
4450 | *ptype = debug_make_array_type (minfo->dhandle, *ptype, int_type, | |
4451 | 0, high, false); | |
4452 | } | |
4453 | } | |
4454 | break; | |
4455 | ||
4456 | case 'T': | |
4457 | /* A back reference to a remembered type. */ | |
4458 | { | |
4459 | unsigned int i; | |
4460 | const char *p; | |
4461 | ||
4462 | ++*pp; | |
4463 | if (! stab_demangle_get_count (pp, &i)) | |
4464 | { | |
4465 | stab_bad_demangle (orig); | |
4466 | return false; | |
4467 | } | |
4468 | if (i >= minfo->typestring_count) | |
4469 | { | |
4470 | stab_bad_demangle (orig); | |
4471 | return false; | |
4472 | } | |
4473 | p = minfo->typestrings[i].typestring; | |
4474 | if (! stab_demangle_type (minfo, &p, ptype)) | |
4475 | return false; | |
4476 | } | |
4477 | break; | |
4478 | ||
4479 | case 'F': | |
4480 | /* A function. */ | |
4481 | ++*pp; | |
4482 | /* FIXME: We should pick up the argument types. */ | |
4483 | if (! stab_demangle_args (minfo, pp, (debug_type **) NULL)) | |
4484 | return false; | |
4485 | if (**pp != '_') | |
4486 | { | |
4487 | /* cplus_demangle will accept a function without a return | |
4488 | type, but I don't know when that will happen, or what to | |
4489 | do if it does. */ | |
4490 | stab_bad_demangle (orig); | |
4491 | return false; | |
4492 | } | |
4493 | ++*pp; | |
4494 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4495 | return false; | |
4496 | if (ptype != NULL) | |
4497 | *ptype = debug_make_function_type (minfo->dhandle, *ptype); | |
4498 | break; | |
4499 | ||
4500 | case 'M': | |
4501 | case 'O': | |
4502 | { | |
4503 | boolean memberp, constp, volatilep; | |
4504 | debug_type *args; | |
4505 | unsigned int n; | |
4506 | const char *name; | |
4507 | ||
4508 | memberp = **pp == 'M'; | |
4509 | constp = false; | |
4510 | volatilep = false; | |
4511 | args = NULL; | |
4512 | ||
4513 | ++*pp; | |
4514 | if (! isdigit ((unsigned char) **pp)) | |
4515 | { | |
4516 | stab_bad_demangle (orig); | |
4517 | return false; | |
4518 | } | |
4519 | n = stab_demangle_count (pp); | |
4520 | if (strlen (*pp) < n) | |
4521 | { | |
4522 | stab_bad_demangle (orig); | |
4523 | return false; | |
4524 | } | |
4525 | name = *pp; | |
4526 | *pp += n; | |
4527 | ||
4528 | if (memberp) | |
4529 | { | |
4530 | if (**pp == 'C') | |
4531 | { | |
4532 | constp = true; | |
4533 | ++*pp; | |
4534 | } | |
4535 | else if (**pp == 'V') | |
4536 | { | |
4537 | volatilep = true; | |
4538 | ++*pp; | |
4539 | } | |
4540 | if (**pp != 'F') | |
4541 | { | |
4542 | stab_bad_demangle (orig); | |
4543 | return false; | |
4544 | } | |
4545 | ++*pp; | |
4546 | if (! stab_demangle_args (minfo, pp, | |
4547 | (ptype == NULL | |
4548 | ? (debug_type **) NULL | |
4549 | : &args))) | |
4550 | return false; | |
4551 | } | |
4552 | ||
4553 | if (**pp != '_') | |
4554 | { | |
4555 | stab_bad_demangle (orig); | |
4556 | return false; | |
4557 | } | |
4558 | ++*pp; | |
4559 | ||
4560 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4561 | return false; | |
4562 | ||
4563 | if (ptype != NULL) | |
4564 | { | |
4565 | debug_type class_type; | |
4566 | ||
4567 | class_type = stab_find_tagged_type (minfo->dhandle, minfo->info, | |
4568 | name, (int) n, | |
4569 | DEBUG_KIND_CLASS); | |
4570 | if (class_type == DEBUG_TYPE_NULL) | |
4571 | return false; | |
4572 | ||
4573 | if (! memberp) | |
4574 | *ptype = debug_make_offset_type (minfo->dhandle, class_type, | |
4575 | *ptype); | |
4576 | else | |
4577 | { | |
4578 | /* FIXME: We have no way to record constp or | |
4579 | volatilep. */ | |
4580 | *ptype = debug_make_method_type (minfo->dhandle, *ptype, | |
4581 | class_type, args); | |
4582 | } | |
4583 | } | |
4584 | } | |
4585 | break; | |
4586 | ||
4587 | case 'G': | |
4588 | ++*pp; | |
4589 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4590 | return false; | |
4591 | break; | |
4592 | ||
4593 | case 'C': | |
4594 | ++*pp; | |
4595 | if (! stab_demangle_type (minfo, pp, ptype)) | |
4596 | return false; | |
4597 | if (ptype != NULL) | |
4598 | *ptype = debug_make_const_type (minfo->dhandle, *ptype); | |
4599 | break; | |
4600 | ||
4601 | case 'Q': | |
4602 | { | |
4603 | const char *hold; | |
4604 | ||
4605 | hold = *pp; | |
4606 | if (! stab_demangle_qualified (minfo, pp, ptype)) | |
4607 | return false; | |
4608 | } | |
4609 | break; | |
4610 | ||
4611 | default: | |
4612 | if (! stab_demangle_fund_type (minfo, pp, ptype)) | |
4613 | return false; | |
4614 | break; | |
4615 | } | |
4616 | ||
4617 | return true; | |
4618 | } | |
4619 | ||
4620 | /* Demangle a fundamental type. If the ptype argument is not NULL, | |
4621 | *ptype is set to the newly allocated type. */ | |
4622 | ||
4623 | static boolean | |
4624 | stab_demangle_fund_type (minfo, pp, ptype) | |
4625 | struct stab_demangle_info *minfo; | |
4626 | const char **pp; | |
4627 | debug_type *ptype; | |
4628 | { | |
4629 | const char *orig; | |
4630 | boolean constp, volatilep, unsignedp, signedp; | |
4631 | boolean done; | |
4632 | ||
4633 | orig = *pp; | |
4634 | ||
4635 | constp = false; | |
4636 | volatilep = false; | |
4637 | unsignedp = false; | |
4638 | signedp = false; | |
4639 | ||
4640 | done = false; | |
4641 | while (! done) | |
4642 | { | |
4643 | switch (**pp) | |
4644 | { | |
4645 | case 'C': | |
4646 | constp = true; | |
4647 | ++*pp; | |
4648 | break; | |
4649 | ||
4650 | case 'U': | |
4651 | unsignedp = true; | |
4652 | ++*pp; | |
4653 | break; | |
4654 | ||
4655 | case 'S': | |
4656 | signedp = true; | |
4657 | ++*pp; | |
4658 | break; | |
4659 | ||
4660 | case 'V': | |
4661 | volatilep = true; | |
4662 | ++*pp; | |
4663 | break; | |
4664 | ||
4665 | default: | |
4666 | done = true; | |
4667 | break; | |
4668 | } | |
4669 | } | |
4670 | ||
4671 | switch (**pp) | |
4672 | { | |
4673 | case '\0': | |
4674 | case '_': | |
4675 | /* cplus_demangle permits this, but I don't know what it means. */ | |
4676 | stab_bad_demangle (orig); | |
4677 | break; | |
4678 | ||
4679 | case 'v': /* void */ | |
4680 | if (ptype != NULL) | |
4681 | { | |
4682 | *ptype = debug_find_named_type (minfo->dhandle, "void"); | |
4683 | if (*ptype == DEBUG_TYPE_NULL) | |
4684 | *ptype = debug_make_void_type (minfo->dhandle); | |
4685 | } | |
4686 | ++*pp; | |
4687 | break; | |
4688 | ||
4689 | case 'x': /* long long */ | |
4690 | if (ptype != NULL) | |
4691 | { | |
4692 | *ptype = debug_find_named_type (minfo->dhandle, | |
4693 | (unsignedp | |
4694 | ? "long long unsigned int" | |
4695 | : "long long int")); | |
4696 | if (*ptype == DEBUG_TYPE_NULL) | |
4697 | *ptype = debug_make_int_type (minfo->dhandle, 8, unsignedp); | |
4698 | } | |
4699 | ++*pp; | |
4700 | break; | |
4701 | ||
4702 | case 'l': /* long */ | |
4703 | if (ptype != NULL) | |
4704 | { | |
4705 | *ptype = debug_find_named_type (minfo->dhandle, | |
4706 | (unsignedp | |
4707 | ? "long unsigned int" | |
4708 | : "long int")); | |
4709 | if (*ptype == DEBUG_TYPE_NULL) | |
4710 | *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp); | |
4711 | } | |
4712 | ++*pp; | |
4713 | break; | |
4714 | ||
4715 | case 'i': /* int */ | |
4716 | if (ptype != NULL) | |
4717 | { | |
4718 | *ptype = debug_find_named_type (minfo->dhandle, | |
4719 | (unsignedp | |
4720 | ? "unsigned int" | |
4721 | : "int")); | |
4722 | if (*ptype == DEBUG_TYPE_NULL) | |
4723 | *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp); | |
4724 | } | |
4725 | ++*pp; | |
4726 | break; | |
4727 | ||
4728 | case 's': /* short */ | |
4729 | if (ptype != NULL) | |
4730 | { | |
4731 | *ptype = debug_find_named_type (minfo->dhandle, | |
4732 | (unsignedp | |
4733 | ? "short unsigned int" | |
4734 | : "short int")); | |
4735 | if (*ptype == DEBUG_TYPE_NULL) | |
4736 | *ptype = debug_make_int_type (minfo->dhandle, 2, unsignedp); | |
4737 | } | |
4738 | ++*pp; | |
4739 | break; | |
4740 | ||
4741 | case 'b': /* bool */ | |
4742 | if (ptype != NULL) | |
4743 | { | |
4744 | *ptype = debug_find_named_type (minfo->dhandle, "bool"); | |
4745 | if (*ptype == DEBUG_TYPE_NULL) | |
4746 | *ptype = debug_make_bool_type (minfo->dhandle, 4); | |
4747 | } | |
4748 | ++*pp; | |
4749 | break; | |
4750 | ||
4751 | case 'c': /* char */ | |
4752 | if (ptype != NULL) | |
4753 | { | |
4754 | *ptype = debug_find_named_type (minfo->dhandle, | |
4755 | (unsignedp | |
4756 | ? "unsigned char" | |
4757 | : (signedp | |
4758 | ? "signed char" | |
4759 | : "char"))); | |
4760 | if (*ptype == DEBUG_TYPE_NULL) | |
4761 | *ptype = debug_make_int_type (minfo->dhandle, 1, unsignedp); | |
4762 | } | |
4763 | ++*pp; | |
4764 | break; | |
4765 | ||
4766 | case 'w': /* wchar_t */ | |
4767 | if (ptype != NULL) | |
4768 | { | |
4769 | *ptype = debug_find_named_type (minfo->dhandle, "__wchar_t"); | |
4770 | if (*ptype == DEBUG_TYPE_NULL) | |
4771 | *ptype = debug_make_int_type (minfo->dhandle, 2, true); | |
4772 | } | |
4773 | ++*pp; | |
4774 | break; | |
4775 | ||
4776 | case 'r': /* long double */ | |
4777 | if (ptype != NULL) | |
4778 | { | |
4779 | *ptype = debug_find_named_type (minfo->dhandle, "long double"); | |
4780 | if (*ptype == DEBUG_TYPE_NULL) | |
4781 | *ptype = debug_make_float_type (minfo->dhandle, 8); | |
4782 | } | |
4783 | ++*pp; | |
4784 | break; | |
4785 | ||
4786 | case 'd': /* double */ | |
4787 | if (ptype != NULL) | |
4788 | { | |
4789 | *ptype = debug_find_named_type (minfo->dhandle, "double"); | |
4790 | if (*ptype == DEBUG_TYPE_NULL) | |
4791 | *ptype = debug_make_float_type (minfo->dhandle, 8); | |
4792 | } | |
4793 | ++*pp; | |
4794 | break; | |
4795 | ||
4796 | case 'f': /* float */ | |
4797 | if (ptype != NULL) | |
4798 | { | |
4799 | *ptype = debug_find_named_type (minfo->dhandle, "float"); | |
4800 | if (*ptype == DEBUG_TYPE_NULL) | |
4801 | *ptype = debug_make_float_type (minfo->dhandle, 4); | |
4802 | } | |
4803 | ++*pp; | |
4804 | break; | |
4805 | ||
4806 | case 'G': | |
4807 | ++*pp; | |
4808 | if (! isdigit ((unsigned char) **pp)) | |
4809 | { | |
4810 | stab_bad_demangle (orig); | |
4811 | return false; | |
4812 | } | |
4813 | /* Fall through. */ | |
4814 | case '0': case '1': case '2': case '3': case '4': | |
4815 | case '5': case '6': case '7': case '8': case '9': | |
4816 | { | |
4817 | const char *hold; | |
4818 | ||
4819 | if (! stab_demangle_class (minfo, pp, &hold)) | |
4820 | return false; | |
4821 | if (ptype != NULL) | |
4822 | { | |
4823 | char *name; | |
4824 | ||
4825 | name = savestring (hold, *pp - hold); | |
4826 | *ptype = debug_find_named_type (minfo->dhandle, name); | |
4827 | if (*ptype == DEBUG_TYPE_NULL) | |
4828 | { | |
4829 | /* FIXME: It is probably incorrect to assume that | |
4830 | undefined types are tagged types. */ | |
4831 | *ptype = stab_find_tagged_type (minfo->dhandle, minfo->info, | |
4832 | hold, *pp - hold, | |
4833 | DEBUG_KIND_ILLEGAL); | |
4834 | } | |
4835 | free (name); | |
4836 | } | |
4837 | } | |
4838 | break; | |
4839 | ||
4840 | case 't': | |
4841 | if (! stab_demangle_template (minfo, pp)) | |
4842 | return false; | |
4843 | abort (); | |
4844 | break; | |
4845 | ||
4846 | default: | |
4847 | stab_bad_demangle (orig); | |
4848 | return false; | |
4849 | } | |
4850 | ||
4851 | if (ptype != NULL) | |
4852 | { | |
4853 | if (constp) | |
4854 | *ptype = debug_make_const_type (minfo->dhandle, *ptype); | |
4855 | if (volatilep) | |
4856 | *ptype = debug_make_volatile_type (minfo->dhandle, *ptype); | |
4857 | } | |
4858 | ||
4859 | return true; | |
4860 | } | |
4861 | ||
4862 | /* Remember a type string in a demangled string. */ | |
4863 | ||
4864 | static boolean | |
4865 | stab_demangle_remember_type (minfo, p, len) | |
4866 | struct stab_demangle_info *minfo; | |
4867 | const char *p; | |
4868 | int len; | |
4869 | { | |
4870 | if (minfo->typestring_count >= minfo->typestring_alloc) | |
4871 | { | |
4872 | minfo->typestring_alloc += 10; | |
4873 | minfo->typestrings = ((struct stab_demangle_typestring *) | |
4874 | xrealloc (minfo->typestrings, | |
4875 | (minfo->typestring_alloc | |
4876 | * sizeof *minfo->typestrings))); | |
4877 | } | |
4878 | ||
4879 | minfo->typestrings[minfo->typestring_count].typestring = p; | |
4880 | minfo->typestrings[minfo->typestring_count].len = (unsigned int) len; | |
4881 | ++minfo->typestring_count; | |
4882 | ||
4883 | return true; | |
4884 | } |