Commit | Line | Data |
---|---|---|
50641945 | 1 | /* Parser for linespec for the GNU debugger, GDB. |
05ff989b | 2 | |
0b302171 | 3 | Copyright (C) 1986-2005, 2007-2012 Free Software Foundation, Inc. |
50641945 FN |
4 | |
5 | This file is part of GDB. | |
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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
50641945 FN |
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 | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
50641945 FN |
19 | |
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
c5f0f3d0 FN |
22 | #include "frame.h" |
23 | #include "command.h" | |
50641945 FN |
24 | #include "symfile.h" |
25 | #include "objfiles.h" | |
0378c332 | 26 | #include "source.h" |
50641945 | 27 | #include "demangle.h" |
c5f0f3d0 FN |
28 | #include "value.h" |
29 | #include "completer.h" | |
015a42b4 | 30 | #include "cp-abi.h" |
12907978 | 31 | #include "cp-support.h" |
c38da1af | 32 | #include "parser-defs.h" |
fe898f56 | 33 | #include "block.h" |
d2630e69 | 34 | #include "objc-lang.h" |
b9362cc7 | 35 | #include "linespec.h" |
05ff989b | 36 | #include "exceptions.h" |
53c5240f | 37 | #include "language.h" |
dc67126b NR |
38 | #include "interps.h" |
39 | #include "mi/mi-cmds.h" | |
bccdca4a | 40 | #include "target.h" |
94af9270 | 41 | #include "arch-utils.h" |
c00f8484 KS |
42 | #include <ctype.h> |
43 | #include "cli/cli-utils.h" | |
731971ed | 44 | #include "filenames.h" |
f8eba3c6 TT |
45 | #include "ada-lang.h" |
46 | ||
47 | typedef struct symtab *symtab_p; | |
48 | DEF_VEC_P (symtab_p); | |
49 | ||
50 | typedef struct symbol *symbolp; | |
51 | DEF_VEC_P (symbolp); | |
52 | ||
53 | typedef struct type *typep; | |
54 | DEF_VEC_P (typep); | |
55 | ||
56 | /* An address entry is used to ensure that any given location is only | |
57 | added to the result a single time. It holds an address and the | |
58 | program space from which the address came. */ | |
59 | ||
60 | struct address_entry | |
61 | { | |
62 | struct program_space *pspace; | |
63 | CORE_ADDR addr; | |
64 | }; | |
65 | ||
66 | /* An instance of this is used to keep all state while linespec | |
67 | operates. This instance is passed around as a 'this' pointer to | |
68 | the various implementation methods. */ | |
69 | ||
70 | struct linespec_state | |
71 | { | |
72 | /* The program space as seen when the module was entered. */ | |
73 | struct program_space *program_space; | |
74 | ||
75 | /* The default symtab to use, if no other symtab is specified. */ | |
76 | struct symtab *default_symtab; | |
77 | ||
78 | /* The default line to use. */ | |
79 | int default_line; | |
80 | ||
81 | /* If the linespec started with "FILE:", this holds all the matching | |
82 | symtabs. Otherwise, it will hold a single NULL entry, meaning | |
83 | that the default symtab should be used. */ | |
84 | VEC (symtab_p) *file_symtabs; | |
85 | ||
86 | /* If the linespec started with "FILE:", this holds an xmalloc'd | |
87 | copy of "FILE". */ | |
88 | char *user_filename; | |
89 | ||
90 | /* If the linespec is "FUNCTION:LABEL", this holds an xmalloc'd copy | |
91 | of "FUNCTION". */ | |
92 | char *user_function; | |
93 | ||
94 | /* The 'funfirstline' value that was passed in to decode_line_1 or | |
95 | decode_line_full. */ | |
96 | int funfirstline; | |
97 | ||
98 | /* Nonzero if we are running in 'list' mode; see decode_line_list. */ | |
99 | int list_mode; | |
100 | ||
101 | /* The 'canonical' value passed to decode_line_full, or NULL. */ | |
102 | struct linespec_result *canonical; | |
103 | ||
104 | /* Canonical strings that mirror the symtabs_and_lines result. */ | |
105 | char **canonical_names; | |
106 | ||
107 | /* This is a set of address_entry objects which is used to prevent | |
108 | duplicate symbols from being entered into the result. */ | |
109 | htab_t addr_set; | |
110 | }; | |
111 | ||
112 | /* This is a helper object that is used when collecting symbols into a | |
113 | result. */ | |
114 | ||
115 | struct collect_info | |
116 | { | |
117 | /* The linespec object in use. */ | |
118 | struct linespec_state *state; | |
119 | ||
120 | /* The result being accumulated. */ | |
121 | struct symtabs_and_lines result; | |
f8eba3c6 | 122 | }; |
50641945 | 123 | |
1777feb0 | 124 | /* Prototypes for local functions. */ |
50641945 | 125 | |
44fe14ab DC |
126 | static void initialize_defaults (struct symtab **default_symtab, |
127 | int *default_line); | |
128 | ||
f8eba3c6 TT |
129 | static struct symtabs_and_lines decode_indirect (struct linespec_state *self, |
130 | char **argptr); | |
44fe14ab | 131 | |
0960f083 DC |
132 | static char *locate_first_half (char **argptr, int *is_quote_enclosed); |
133 | ||
f8eba3c6 TT |
134 | static struct symtabs_and_lines decode_objc (struct linespec_state *self, |
135 | char **argptr); | |
d2630e69 | 136 | |
f8eba3c6 TT |
137 | static struct symtabs_and_lines decode_compound (struct linespec_state *self, |
138 | char **argptr, | |
614b3b14 | 139 | char *saved_arg, |
58438ac1 | 140 | char *p); |
614b3b14 | 141 | |
f8eba3c6 TT |
142 | static VEC (symbolp) *lookup_prefix_sym (char **argptr, char *p, |
143 | VEC (symtab_p) *, | |
144 | char **); | |
93d91629 | 145 | |
f8eba3c6 | 146 | static struct symtabs_and_lines find_method (struct linespec_state *self, |
4224873a DC |
147 | char *saved_arg, |
148 | char *copy, | |
f8eba3c6 TT |
149 | const char *class_name, |
150 | VEC (symbolp) *sym_classes); | |
4224873a | 151 | |
c25c4a8b JK |
152 | static void cplusplus_error (const char *name, const char *fmt, ...) |
153 | ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (2, 3); | |
50641945 | 154 | |
f8eba3c6 | 155 | static char *find_toplevel_char (char *s, char c); |
50641945 | 156 | |
f8eba3c6 | 157 | static int is_objc_method_format (const char *s); |
50641945 | 158 | |
f8eba3c6 TT |
159 | static VEC (symtab_p) *symtabs_from_filename (char **argptr, |
160 | char *p, int is_quote_enclosed, | |
161 | char **user_filename); | |
aee8d8ba | 162 | |
f8eba3c6 TT |
163 | static VEC (symbolp) *find_function_symbols (char **argptr, char *p, |
164 | int is_quote_enclosed, | |
165 | char **user_function); | |
aee8d8ba | 166 | |
f8eba3c6 TT |
167 | static struct symtabs_and_lines decode_all_digits (struct linespec_state *self, |
168 | char **argptr, | |
169 | char *q); | |
50641945 | 170 | |
f8eba3c6 TT |
171 | static struct symtabs_and_lines decode_dollar (struct linespec_state *self, |
172 | char *copy); | |
50641945 | 173 | |
f8eba3c6 TT |
174 | static int decode_label (struct linespec_state *self, |
175 | VEC (symbolp) *function_symbols, | |
176 | char *copy, | |
177 | struct symtabs_and_lines *result); | |
178 | ||
179 | static struct symtabs_and_lines decode_variable (struct linespec_state *self, | |
180 | char *copy); | |
889f28e2 | 181 | |
f8eba3c6 TT |
182 | static int symbol_to_sal (struct symtab_and_line *result, |
183 | int funfirstline, struct symbol *sym); | |
50641945 | 184 | |
f8eba3c6 TT |
185 | static void add_matching_symbols_to_info (const char *name, |
186 | struct collect_info *info, | |
187 | struct program_space *pspace); | |
f3c39e76 | 188 | |
f8eba3c6 TT |
189 | static void add_all_symbol_names_from_pspace (struct collect_info *info, |
190 | struct program_space *pspace, | |
191 | VEC (const_char_ptr) *names); | |
9ef07c8c | 192 | |
f8eba3c6 | 193 | /* Helper functions. */ |
84fba31b | 194 | |
f8eba3c6 | 195 | /* Add SAL to SALS. */ |
14e91ac5 | 196 | |
f8eba3c6 TT |
197 | static void |
198 | add_sal_to_sals_basic (struct symtabs_and_lines *sals, | |
199 | struct symtab_and_line *sal) | |
200 | { | |
201 | ++sals->nelts; | |
202 | sals->sals = xrealloc (sals->sals, sals->nelts * sizeof (sals->sals[0])); | |
203 | sals->sals[sals->nelts - 1] = *sal; | |
204 | } | |
0f5238ed | 205 | |
f8eba3c6 TT |
206 | /* Add SAL to SALS, and also update SELF->CANONICAL_NAMES to reflect |
207 | the new sal, if needed. If not NULL, SYMNAME is the name of the | |
208 | symbol to use when constructing the new canonical name. */ | |
bca02a8a | 209 | |
f8eba3c6 TT |
210 | static void |
211 | add_sal_to_sals (struct linespec_state *self, | |
212 | struct symtabs_and_lines *sals, | |
213 | struct symtab_and_line *sal, | |
214 | const char *symname) | |
215 | { | |
216 | add_sal_to_sals_basic (sals, sal); | |
413dad4d | 217 | |
f8eba3c6 TT |
218 | if (self->canonical) |
219 | { | |
220 | char *canonical_name = NULL; | |
413dad4d | 221 | |
f8eba3c6 TT |
222 | self->canonical_names = xrealloc (self->canonical_names, |
223 | sals->nelts * sizeof (char *)); | |
224 | if (sal->symtab && sal->symtab->filename) | |
225 | { | |
226 | char *filename = sal->symtab->filename; | |
227 | ||
228 | /* Note that the filter doesn't have to be a valid linespec | |
229 | input. We only apply the ":LINE" treatment to Ada for | |
230 | the time being. */ | |
231 | if (symname != NULL && sal->line != 0 | |
232 | && current_language->la_language == language_ada) | |
233 | canonical_name = xstrprintf ("%s:%s:%d", filename, symname, | |
234 | sal->line); | |
235 | else if (symname != NULL) | |
236 | canonical_name = xstrprintf ("%s:%s", filename, symname); | |
237 | else | |
238 | canonical_name = xstrprintf ("%s:%d", filename, sal->line); | |
239 | } | |
240 | ||
241 | self->canonical_names[sals->nelts - 1] = canonical_name; | |
242 | } | |
243 | } | |
244 | ||
245 | /* A hash function for address_entry. */ | |
246 | ||
247 | static hashval_t | |
248 | hash_address_entry (const void *p) | |
249 | { | |
250 | const struct address_entry *aep = p; | |
04ca3c22 | 251 | hashval_t hash; |
f8eba3c6 | 252 | |
04ca3c22 AP |
253 | hash = iterative_hash_object (aep->pspace, 0); |
254 | return iterative_hash_object (aep->addr, hash); | |
f8eba3c6 TT |
255 | } |
256 | ||
257 | /* An equality function for address_entry. */ | |
258 | ||
259 | static int | |
260 | eq_address_entry (const void *a, const void *b) | |
261 | { | |
262 | const struct address_entry *aea = a; | |
263 | const struct address_entry *aeb = b; | |
264 | ||
265 | return aea->pspace == aeb->pspace && aea->addr == aeb->addr; | |
266 | } | |
267 | ||
268 | /* Check whether the address, represented by PSPACE and ADDR, is | |
269 | already in the set. If so, return 0. Otherwise, add it and return | |
270 | 1. */ | |
271 | ||
272 | static int | |
273 | maybe_add_address (htab_t set, struct program_space *pspace, CORE_ADDR addr) | |
274 | { | |
275 | struct address_entry e, *p; | |
276 | void **slot; | |
277 | ||
278 | e.pspace = pspace; | |
279 | e.addr = addr; | |
280 | slot = htab_find_slot (set, &e, INSERT); | |
281 | if (*slot) | |
282 | return 0; | |
283 | ||
284 | p = XNEW (struct address_entry); | |
285 | memcpy (p, &e, sizeof (struct address_entry)); | |
286 | *slot = p; | |
287 | ||
288 | return 1; | |
289 | } | |
50641945 | 290 | |
255e7dbf AC |
291 | /* Issue a helpful hint on using the command completion feature on |
292 | single quoted demangled C++ symbols as part of the completion | |
293 | error. */ | |
50641945 | 294 | |
c25c4a8b | 295 | static void |
255e7dbf | 296 | cplusplus_error (const char *name, const char *fmt, ...) |
50641945 | 297 | { |
255e7dbf | 298 | struct ui_file *tmp_stream; |
f3a5f1de | 299 | char *message; |
e0881a8e | 300 | |
255e7dbf AC |
301 | tmp_stream = mem_fileopen (); |
302 | make_cleanup_ui_file_delete (tmp_stream); | |
303 | ||
304 | { | |
305 | va_list args; | |
e0881a8e | 306 | |
255e7dbf AC |
307 | va_start (args, fmt); |
308 | vfprintf_unfiltered (tmp_stream, fmt, args); | |
309 | va_end (args); | |
310 | } | |
311 | ||
50641945 FN |
312 | while (*name == '\'') |
313 | name++; | |
255e7dbf AC |
314 | fprintf_unfiltered (tmp_stream, |
315 | ("Hint: try '%s<TAB> or '%s<ESC-?>\n" | |
316 | "(Note leading single quote.)"), | |
317 | name, name); | |
f3a5f1de | 318 | |
759ef836 PA |
319 | message = ui_file_xstrdup (tmp_stream, NULL); |
320 | make_cleanup (xfree, message); | |
321 | throw_error (NOT_FOUND_ERROR, "%s", message); | |
50641945 FN |
322 | } |
323 | ||
74ccd7f5 JB |
324 | /* Some data for the expand_symtabs_matching callback. */ |
325 | ||
326 | struct symbol_matcher_data | |
327 | { | |
328 | /* The lookup name against which symbol name should be compared. */ | |
329 | const char *lookup_name; | |
330 | ||
331 | /* The routine to be used for comparison. */ | |
332 | symbol_name_match_p_ftype symbol_name_match_p; | |
333 | }; | |
334 | ||
f8eba3c6 TT |
335 | /* A helper for iterate_over_all_matching_symtabs that is passed as a |
336 | callback to the expand_symtabs_matching method. */ | |
50641945 FN |
337 | |
338 | static int | |
e078317b | 339 | iterate_name_matcher (const char *name, void *d) |
50641945 | 340 | { |
74ccd7f5 | 341 | const struct symbol_matcher_data *data = d; |
50641945 | 342 | |
b3b8b934 | 343 | if (data->symbol_name_match_p (name, data->lookup_name) == 0) |
8e704927 GB |
344 | return 1; /* Expand this symbol's symbol table. */ |
345 | return 0; /* Skip this symbol. */ | |
f8eba3c6 TT |
346 | } |
347 | ||
348 | /* A helper that walks over all matching symtabs in all objfiles and | |
349 | calls CALLBACK for each symbol matching NAME. If SEARCH_PSPACE is | |
350 | not NULL, then the search is restricted to just that program | |
351 | space. */ | |
352 | ||
353 | static void | |
354 | iterate_over_all_matching_symtabs (const char *name, | |
355 | const domain_enum domain, | |
8e704927 | 356 | symbol_found_callback_ftype *callback, |
f8eba3c6 TT |
357 | void *data, |
358 | struct program_space *search_pspace) | |
359 | { | |
360 | struct objfile *objfile; | |
361 | struct program_space *pspace; | |
74ccd7f5 JB |
362 | struct symbol_matcher_data matcher_data; |
363 | ||
364 | matcher_data.lookup_name = name; | |
365 | matcher_data.symbol_name_match_p = | |
366 | current_language->la_get_symbol_name_match_p != NULL | |
367 | ? current_language->la_get_symbol_name_match_p (name) | |
368 | : strcmp_iw; | |
f8eba3c6 TT |
369 | |
370 | ALL_PSPACES (pspace) | |
371 | { | |
372 | if (search_pspace != NULL && search_pspace != pspace) | |
373 | continue; | |
374 | if (pspace->executing_startup) | |
375 | continue; | |
376 | ||
377 | set_current_program_space (pspace); | |
50641945 | 378 | |
f8eba3c6 TT |
379 | ALL_OBJFILES (objfile) |
380 | { | |
381 | struct symtab *symtab; | |
382 | ||
383 | if (objfile->sf) | |
384 | objfile->sf->qf->expand_symtabs_matching (objfile, NULL, | |
385 | iterate_name_matcher, | |
386 | ALL_DOMAIN, | |
74ccd7f5 | 387 | &matcher_data); |
f8eba3c6 TT |
388 | |
389 | ALL_OBJFILE_SYMTABS (objfile, symtab) | |
390 | { | |
391 | if (symtab->primary) | |
392 | { | |
393 | struct block *block; | |
50641945 | 394 | |
f8eba3c6 TT |
395 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK); |
396 | LA_ITERATE_OVER_SYMBOLS (block, name, domain, callback, data); | |
397 | } | |
398 | } | |
399 | } | |
400 | } | |
50641945 FN |
401 | } |
402 | ||
e8eb7bc5 KS |
403 | /* Returns the block to be used for symbol searches for the given SYMTAB, |
404 | which may be NULL. */ | |
405 | ||
406 | static struct block * | |
407 | get_search_block (struct symtab *symtab) | |
408 | { | |
409 | struct block *block; | |
410 | ||
411 | if (symtab != NULL) | |
412 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK); | |
413 | else | |
414 | { | |
415 | enum language save_language; | |
416 | ||
417 | /* get_selected_block can change the current language when there is | |
418 | no selected frame yet. */ | |
419 | save_language = current_language->la_language; | |
420 | block = get_selected_block (0); | |
421 | set_language (save_language); | |
422 | } | |
423 | ||
424 | return block; | |
425 | } | |
426 | ||
f8eba3c6 TT |
427 | /* A helper for find_method. This finds all methods in type T which |
428 | match NAME. It adds resulting symbol names to RESULT_NAMES, and | |
429 | adds T's direct superclasses to SUPERCLASSES. */ | |
50641945 | 430 | |
f8eba3c6 TT |
431 | static void |
432 | find_methods (struct type *t, const char *name, | |
433 | VEC (const_char_ptr) **result_names, | |
434 | VEC (typep) **superclasses) | |
50641945 FN |
435 | { |
436 | int i1 = 0; | |
437 | int ibase; | |
50641945 | 438 | char *class_name = type_name_no_tag (t); |
c00f8484 KS |
439 | char *canon; |
440 | ||
50641945 FN |
441 | /* Ignore this class if it doesn't have a name. This is ugly, but |
442 | unless we figure out how to get the physname without the name of | |
443 | the class, then the loop can't do any good. */ | |
f8eba3c6 | 444 | if (class_name) |
50641945 FN |
445 | { |
446 | int method_counter; | |
5c717440 | 447 | int name_len = strlen (name); |
50641945 | 448 | |
8bd1f2c6 | 449 | CHECK_TYPEDEF (t); |
50641945 FN |
450 | |
451 | /* Loop over each method name. At this level, all overloads of a name | |
452 | are counted as a single name. There is an inner loop which loops over | |
453 | each overload. */ | |
454 | ||
455 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
456 | method_counter >= 0; | |
457 | --method_counter) | |
458 | { | |
50641945 FN |
459 | char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
460 | char dem_opname[64]; | |
461 | ||
462 | if (strncmp (method_name, "__", 2) == 0 || | |
463 | strncmp (method_name, "op", 2) == 0 || | |
464 | strncmp (method_name, "type", 4) == 0) | |
465 | { | |
466 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
467 | method_name = dem_opname; | |
468 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
469 | method_name = dem_opname; | |
470 | } | |
471 | ||
f8eba3c6 TT |
472 | if (strcmp_iw (method_name, name) == 0) |
473 | { | |
474 | int field_counter; | |
aee8d8ba | 475 | |
f8eba3c6 TT |
476 | for (field_counter = (TYPE_FN_FIELDLIST_LENGTH (t, method_counter) |
477 | - 1); | |
478 | field_counter >= 0; | |
479 | --field_counter) | |
480 | { | |
481 | struct fn_field *f; | |
482 | const char *phys_name; | |
483 | ||
484 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
485 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
486 | continue; | |
487 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
488 | VEC_safe_push (const_char_ptr, *result_names, phys_name); | |
489 | } | |
490 | } | |
aee8d8ba DC |
491 | } |
492 | } | |
493 | ||
f8eba3c6 TT |
494 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) |
495 | VEC_safe_push (typep, *superclasses, TYPE_BASECLASS (t, ibase)); | |
50641945 FN |
496 | } |
497 | ||
50641945 FN |
498 | /* Find an instance of the character C in the string S that is outside |
499 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
500 | strings. Also, ignore the char within a template name, like a ',' |
501 | within foo<int, int>. */ | |
502 | ||
50641945 FN |
503 | static char * |
504 | find_toplevel_char (char *s, char c) | |
505 | { | |
506 | int quoted = 0; /* zero if we're not in quotes; | |
507 | '"' if we're in a double-quoted string; | |
508 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 509 | int depth = 0; /* Number of unclosed parens we've seen. */ |
50641945 FN |
510 | char *scan; |
511 | ||
512 | for (scan = s; *scan; scan++) | |
513 | { | |
514 | if (quoted) | |
515 | { | |
516 | if (*scan == quoted) | |
517 | quoted = 0; | |
518 | else if (*scan == '\\' && *(scan + 1)) | |
519 | scan++; | |
520 | } | |
521 | else if (*scan == c && ! quoted && depth == 0) | |
522 | return scan; | |
523 | else if (*scan == '"' || *scan == '\'') | |
524 | quoted = *scan; | |
8120c9d5 | 525 | else if (*scan == '(' || *scan == '<') |
50641945 | 526 | depth++; |
8120c9d5 | 527 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
528 | depth--; |
529 | } | |
530 | ||
531 | return 0; | |
532 | } | |
533 | ||
889f28e2 | 534 | /* Determines if the gives string corresponds to an Objective-C method |
1777feb0 | 535 | representation, such as -[Foo bar:] or +[Foo bar]. Objective-C symbols |
889f28e2 AF |
536 | are allowed to have spaces and parentheses in them. */ |
537 | ||
538 | static int | |
539 | is_objc_method_format (const char *s) | |
540 | { | |
541 | if (s == NULL || *s == '\0') | |
542 | return 0; | |
543 | /* Handle arguments with the format FILENAME:SYMBOL. */ | |
544 | if ((s[0] == ':') && (strchr ("+-", s[1]) != NULL) | |
545 | && (s[2] == '[') && strchr(s, ']')) | |
546 | return 1; | |
547 | /* Handle arguments that are just SYMBOL. */ | |
548 | else if ((strchr ("+-", s[0]) != NULL) && (s[1] == '[') && strchr(s, ']')) | |
549 | return 1; | |
550 | return 0; | |
551 | } | |
552 | ||
f8eba3c6 TT |
553 | /* Given FILTERS, a list of canonical names, filter the sals in RESULT |
554 | and store the result in SELF->CANONICAL. */ | |
50641945 | 555 | |
f8eba3c6 TT |
556 | static void |
557 | filter_results (struct linespec_state *self, | |
558 | struct symtabs_and_lines *result, | |
559 | VEC (const_char_ptr) *filters) | |
560 | { | |
561 | int i; | |
562 | const char *name; | |
563 | ||
564 | for (i = 0; VEC_iterate (const_char_ptr, filters, i, name); ++i) | |
565 | { | |
566 | struct linespec_sals lsal; | |
567 | int j; | |
568 | ||
569 | memset (&lsal, 0, sizeof (lsal)); | |
570 | ||
571 | for (j = 0; j < result->nelts; ++j) | |
572 | { | |
573 | if (strcmp (name, self->canonical_names[j]) == 0) | |
574 | add_sal_to_sals_basic (&lsal.sals, &result->sals[j]); | |
575 | } | |
576 | ||
577 | if (lsal.sals.nelts > 0) | |
578 | { | |
579 | lsal.canonical = xstrdup (name); | |
580 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
581 | } | |
582 | } | |
583 | ||
584 | self->canonical->pre_expanded = 0; | |
585 | } | |
586 | ||
587 | /* Store RESULT into SELF->CANONICAL. */ | |
588 | ||
589 | static void | |
590 | convert_results_to_lsals (struct linespec_state *self, | |
591 | struct symtabs_and_lines *result) | |
50641945 | 592 | { |
f8eba3c6 TT |
593 | struct linespec_sals lsal; |
594 | ||
595 | lsal.canonical = NULL; | |
596 | lsal.sals = *result; | |
597 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
598 | } | |
599 | ||
600 | /* Handle multiple results in RESULT depending on SELECT_MODE. This | |
601 | will either return normally, throw an exception on multiple | |
602 | results, or present a menu to the user. On return, the SALS vector | |
603 | in SELF->CANONICAL is set up properly. */ | |
604 | ||
605 | static void | |
606 | decode_line_2 (struct linespec_state *self, | |
607 | struct symtabs_and_lines *result, | |
608 | const char *select_mode) | |
609 | { | |
610 | const char *iter; | |
611 | char *args, *prompt; | |
50641945 | 612 | int i; |
50641945 | 613 | struct cleanup *old_chain; |
f8eba3c6 TT |
614 | VEC (const_char_ptr) *item_names = NULL, *filters = NULL; |
615 | struct get_number_or_range_state state; | |
50641945 | 616 | |
f8eba3c6 TT |
617 | gdb_assert (select_mode != multiple_symbols_all); |
618 | gdb_assert (self->canonical != NULL); | |
50641945 | 619 | |
f8eba3c6 TT |
620 | old_chain = make_cleanup (VEC_cleanup (const_char_ptr), &item_names); |
621 | make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
622 | for (i = 0; i < result->nelts; ++i) | |
50641945 | 623 | { |
f8eba3c6 TT |
624 | int j, found = 0; |
625 | const char *iter; | |
626 | ||
627 | gdb_assert (self->canonical_names[i] != NULL); | |
628 | for (j = 0; VEC_iterate (const_char_ptr, item_names, j, iter); ++j) | |
629 | { | |
630 | if (strcmp (iter, self->canonical_names[i]) == 0) | |
631 | { | |
632 | found = 1; | |
633 | break; | |
634 | } | |
635 | } | |
636 | ||
637 | if (!found) | |
638 | VEC_safe_push (const_char_ptr, item_names, self->canonical_names[i]); | |
50641945 FN |
639 | } |
640 | ||
f8eba3c6 TT |
641 | if (select_mode == multiple_symbols_cancel |
642 | && VEC_length (const_char_ptr, item_names) > 1) | |
643 | error (_("canceled because the command is ambiguous\n" | |
644 | "See set/show multiple-symbol.")); | |
645 | ||
646 | if (select_mode == multiple_symbols_all | |
647 | || VEC_length (const_char_ptr, item_names) == 1) | |
50641945 | 648 | { |
f8eba3c6 TT |
649 | do_cleanups (old_chain); |
650 | convert_results_to_lsals (self, result); | |
651 | return; | |
50641945 FN |
652 | } |
653 | ||
f8eba3c6 TT |
654 | printf_unfiltered (_("[0] cancel\n[1] all\n")); |
655 | for (i = 0; VEC_iterate (const_char_ptr, item_names, i, iter); ++i) | |
656 | printf_unfiltered ("[%d] %s\n", i + 2, iter); | |
657 | ||
658 | prompt = getenv ("PS2"); | |
659 | if (prompt == NULL) | |
50641945 | 660 | { |
f8eba3c6 | 661 | prompt = "> "; |
50641945 | 662 | } |
f8eba3c6 | 663 | args = command_line_input (prompt, 0, "overload-choice"); |
50641945 FN |
664 | |
665 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 666 | error_no_arg (_("one or more choice numbers")); |
50641945 | 667 | |
f8eba3c6 TT |
668 | init_number_or_range (&state, args); |
669 | while (!state.finished) | |
50641945 FN |
670 | { |
671 | int num; | |
672 | ||
f8eba3c6 | 673 | num = get_number_or_range (&state); |
50641945 FN |
674 | |
675 | if (num == 0) | |
8a3fe4f8 | 676 | error (_("canceled")); |
50641945 FN |
677 | else if (num == 1) |
678 | { | |
f8eba3c6 TT |
679 | /* We intentionally make this result in a single breakpoint, |
680 | contrary to what older versions of gdb did. The | |
681 | rationale is that this lets a user get the | |
682 | multiple_symbols_all behavior even with the 'ask' | |
683 | setting; and he can get separate breakpoints by entering | |
684 | "2-57" at the query. */ | |
685 | do_cleanups (old_chain); | |
686 | convert_results_to_lsals (self, result); | |
687 | return; | |
50641945 FN |
688 | } |
689 | ||
f8eba3c6 TT |
690 | num -= 2; |
691 | if (num >= VEC_length (const_char_ptr, item_names)) | |
692 | printf_unfiltered (_("No choice number %d.\n"), num); | |
50641945 FN |
693 | else |
694 | { | |
f8eba3c6 TT |
695 | const char *elt = VEC_index (const_char_ptr, item_names, num); |
696 | ||
697 | if (elt != NULL) | |
50641945 | 698 | { |
f8eba3c6 TT |
699 | VEC_safe_push (const_char_ptr, filters, elt); |
700 | VEC_replace (const_char_ptr, item_names, num, NULL); | |
50641945 FN |
701 | } |
702 | else | |
703 | { | |
3e43a32a MS |
704 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
705 | num); | |
50641945 FN |
706 | } |
707 | } | |
50641945 | 708 | } |
f8eba3c6 TT |
709 | |
710 | filter_results (self, result, filters); | |
711 | do_cleanups (old_chain); | |
50641945 | 712 | } |
94af9270 | 713 | |
3d50dd94 JK |
714 | /* Valid delimiters for linespec keywords "if", "thread" or "task". */ |
715 | ||
716 | static int | |
717 | is_linespec_boundary (char c) | |
718 | { | |
719 | return c == ' ' || c == '\t' || c == '\0' || c == ','; | |
720 | } | |
721 | ||
94af9270 KS |
722 | /* A helper function for decode_line_1 and friends which skips P |
723 | past any method overload information at the beginning of P, e.g., | |
724 | "(const struct foo *)". | |
725 | ||
726 | This function assumes that P has already been validated to contain | |
727 | overload information, and it will assert if *P != '('. */ | |
728 | static char * | |
729 | find_method_overload_end (char *p) | |
730 | { | |
731 | int depth = 0; | |
732 | ||
733 | gdb_assert (*p == '('); | |
734 | ||
735 | while (*p) | |
736 | { | |
737 | if (*p == '(') | |
738 | ++depth; | |
739 | else if (*p == ')') | |
740 | { | |
741 | if (--depth == 0) | |
742 | { | |
743 | ++p; | |
744 | break; | |
745 | } | |
746 | } | |
747 | ++p; | |
748 | } | |
749 | ||
750 | return p; | |
751 | } | |
c00f8484 | 752 | |
c00f8484 | 753 | /* Keep important information used when looking up a name. This includes |
3d50dd94 JK |
754 | template parameters, overload information, and important keywords, including |
755 | the possible Java trailing type. */ | |
c00f8484 KS |
756 | |
757 | static char * | |
3d50dd94 | 758 | keep_name_info (char *p, int on_boundary) |
c00f8484 | 759 | { |
3d50dd94 JK |
760 | const char *quotes = get_gdb_completer_quote_characters (); |
761 | char *saved_p = p; | |
762 | int nest = 0; | |
c00f8484 | 763 | |
3d50dd94 JK |
764 | while (*p) |
765 | { | |
766 | if (strchr (quotes, *p)) | |
767 | break; | |
c00f8484 | 768 | |
3d50dd94 JK |
769 | if (*p == ',' && !nest) |
770 | break; | |
c00f8484 | 771 | |
3d50dd94 JK |
772 | if (on_boundary && !nest) |
773 | { | |
774 | const char *const words[] = { "if", "thread", "task" }; | |
775 | int wordi; | |
c00f8484 | 776 | |
3d50dd94 JK |
777 | for (wordi = 0; wordi < ARRAY_SIZE (words); wordi++) |
778 | if (strncmp (p, words[wordi], strlen (words[wordi])) == 0 | |
779 | && is_linespec_boundary (p[strlen (words[wordi])])) | |
780 | break; | |
781 | if (wordi < ARRAY_SIZE (words)) | |
782 | break; | |
783 | } | |
c00f8484 | 784 | |
3d50dd94 JK |
785 | if (*p == '(' || *p == '<' || *p == '[') |
786 | nest++; | |
787 | else if ((*p == ')' || *p == '>' || *p == ']') && nest > 0) | |
788 | nest--; | |
c00f8484 | 789 | |
3d50dd94 JK |
790 | p++; |
791 | ||
792 | /* The ',' check could fail on "operator ,". */ | |
793 | p += cp_validate_operator (p); | |
794 | ||
795 | on_boundary = is_linespec_boundary (p[-1]); | |
f17170e5 | 796 | } |
c00f8484 | 797 | |
3d50dd94 JK |
798 | while (p > saved_p && is_linespec_boundary (p[-1])) |
799 | p--; | |
800 | ||
801 | return p; | |
c00f8484 KS |
802 | } |
803 | ||
50641945 | 804 | \f |
1777feb0 | 805 | /* The parser of linespec itself. */ |
50641945 FN |
806 | |
807 | /* Parse a string that specifies a line number. | |
808 | Pass the address of a char * variable; that variable will be | |
809 | advanced over the characters actually parsed. | |
810 | ||
811 | The string can be: | |
812 | ||
813 | LINENUM -- that line number in current file. PC returned is 0. | |
814 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
815 | FUNCTION -- line number of openbrace of that function. | |
816 | PC returned is the start of the function. | |
0f5238ed | 817 | LABEL -- a label in the current scope |
50641945 FN |
818 | VARIABLE -- line number of definition of that variable. |
819 | PC returned is 0. | |
820 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
821 | *EXPR -- line in which address EXPR appears. | |
822 | ||
823 | This may all be followed by an "if EXPR", which we ignore. | |
824 | ||
825 | FUNCTION may be an undebuggable function found in minimal symbol table. | |
826 | ||
827 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
828 | of real code inside a function when a function is specified, and it is | |
829 | not OK to specify a variable or type to get its line number. | |
830 | ||
831 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
832 | It defaults to current_source_symtab. | |
833 | DEFAULT_LINE specifies the line number to use for relative | |
834 | line numbers (that start with signs). Defaults to current_source_line. | |
835 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
1777feb0 | 836 | line specs there if necessary. Currently overloaded member functions and |
50641945 | 837 | line numbers or static functions without a filename yield a canonical |
1777feb0 | 838 | line spec. The array and the line spec strings are allocated on the heap, |
50641945 FN |
839 | it is the callers responsibility to free them. |
840 | ||
841 | Note that it is possible to return zero for the symtab | |
842 | if no file is validly specified. Callers must check that. | |
58438ac1 | 843 | Also, the line number returned may be invalid. */ |
50641945 FN |
844 | |
845 | /* We allow single quotes in various places. This is a hideous | |
846 | kludge, which exists because the completer can't yet deal with the | |
847 | lack of single quotes. FIXME: write a linespec_completer which we | |
848 | can use as appropriate instead of make_symbol_completion_list. */ | |
849 | ||
ad32032e | 850 | static struct symtabs_and_lines |
f8eba3c6 | 851 | decode_line_internal (struct linespec_state *self, char **argptr) |
50641945 | 852 | { |
f3c39e76 | 853 | char *p; |
614b3b14 | 854 | char *q; |
50641945 | 855 | |
50641945 | 856 | char *copy; |
636b1a6d DC |
857 | /* This says whether or not something in *ARGPTR is quoted with |
858 | completer_quotes (i.e. with single quotes). */ | |
e325fb69 | 859 | int is_quoted; |
e5dd4106 | 860 | /* Is *ARGPTR enclosed in double quotes? */ |
50641945 | 861 | int is_quote_enclosed; |
d2630e69 | 862 | int is_objc_method = 0; |
50641945 | 863 | char *saved_arg = *argptr; |
791dfb64 DJ |
864 | /* If IS_QUOTED, the end of the quoted bit. */ |
865 | char *end_quote = NULL; | |
e8eb7bc5 KS |
866 | /* Is *ARGPTR enclosed in single quotes? */ |
867 | int is_squote_enclosed = 0; | |
0e0b460e KS |
868 | /* The "first half" of the linespec. */ |
869 | char *first_half; | |
50641945 | 870 | |
f8eba3c6 TT |
871 | /* If we are parsing `function:label', this holds the symbols |
872 | matching the function name. */ | |
873 | VEC (symbolp) *function_symbols = NULL; | |
874 | /* If FUNCTION_SYMBOLS is not NULL, then this is the exception that | |
9ef07c8c TT |
875 | was thrown when trying to parse a filename. */ |
876 | volatile struct gdb_exception file_exception; | |
877 | ||
f8eba3c6 TT |
878 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
879 | ||
50641945 FN |
880 | /* Defaults have defaults. */ |
881 | ||
f8eba3c6 | 882 | initialize_defaults (&self->default_symtab, &self->default_line); |
44fe14ab | 883 | |
a04257e6 | 884 | /* See if arg is *PC. */ |
50641945 | 885 | |
e325fb69 | 886 | if (**argptr == '*') |
f8eba3c6 TT |
887 | { |
888 | do_cleanups (cleanup); | |
889 | return decode_indirect (self, argptr); | |
890 | } | |
5f01dbc0 | 891 | |
e325fb69 MS |
892 | is_quoted = (strchr (get_gdb_completer_quote_characters (), |
893 | **argptr) != NULL); | |
50641945 | 894 | |
791dfb64 | 895 | if (is_quoted) |
e8eb7bc5 KS |
896 | { |
897 | end_quote = skip_quoted (*argptr); | |
898 | if (*end_quote == '\0') | |
899 | is_squote_enclosed = 1; | |
900 | } | |
50641945 | 901 | |
0960f083 DC |
902 | /* Check to see if it's a multipart linespec (with colons or |
903 | periods). */ | |
50641945 | 904 | |
17763fd9 EZ |
905 | /* Locate the end of the first half of the linespec. |
906 | After the call, for instance, if the argptr string is "foo.c:123" | |
907 | p will point at "123". If there is only one part, like "foo", p | |
1777feb0 MS |
908 | will point to "". If this is a C++ name, like "A::B::foo", p will |
909 | point to "::B::foo". Argptr is not changed by this call. */ | |
50641945 | 910 | |
0e0b460e | 911 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); |
50641945 | 912 | |
e8eb7bc5 | 913 | /* First things first: if ARGPTR starts with a filename, get its |
136e1c30 DE |
914 | symtab and strip the filename from ARGPTR. |
915 | Avoid calling symtab_from_filename if we know can, | |
916 | it can be expensive. */ | |
917 | ||
918 | if (*p != '\0') | |
e8eb7bc5 | 919 | { |
136e1c30 DE |
920 | TRY_CATCH (file_exception, RETURN_MASK_ERROR) |
921 | { | |
922 | self->file_symtabs = symtabs_from_filename (argptr, p, | |
923 | is_quote_enclosed, | |
924 | &self->user_filename); | |
925 | } | |
926 | ||
927 | if (file_exception.reason >= 0) | |
928 | { | |
929 | /* Check for single quotes on the non-filename part. */ | |
930 | is_quoted = (**argptr | |
931 | && strchr (get_gdb_completer_quote_characters (), | |
932 | **argptr) != NULL); | |
933 | if (is_quoted) | |
934 | end_quote = skip_quoted (*argptr); | |
935 | ||
936 | /* Locate the next "half" of the linespec. */ | |
937 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); | |
938 | } | |
f8eba3c6 | 939 | |
136e1c30 DE |
940 | if (VEC_empty (symtab_p, self->file_symtabs)) |
941 | { | |
942 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ | |
943 | VEC_safe_push (symtab_p, self->file_symtabs, NULL); | |
944 | } | |
945 | } | |
946 | else | |
f8eba3c6 TT |
947 | { |
948 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ | |
949 | VEC_safe_push (symtab_p, self->file_symtabs, NULL); | |
e8eb7bc5 KS |
950 | } |
951 | ||
d2630e69 AF |
952 | /* Check if this is an Objective-C method (anything that starts with |
953 | a '+' or '-' and a '['). */ | |
889f28e2 | 954 | if (is_objc_method_format (p)) |
94af9270 | 955 | is_objc_method = 1; |
d2630e69 AF |
956 | |
957 | /* Check if the symbol could be an Objective-C selector. */ | |
958 | ||
959 | { | |
960 | struct symtabs_and_lines values; | |
e0881a8e | 961 | |
f8eba3c6 | 962 | values = decode_objc (self, argptr); |
d2630e69 | 963 | if (values.sals != NULL) |
f8eba3c6 TT |
964 | { |
965 | do_cleanups (cleanup); | |
966 | return values; | |
967 | } | |
d2630e69 AF |
968 | } |
969 | ||
0960f083 | 970 | /* Does it look like there actually were two parts? */ |
50641945 | 971 | |
791dfb64 | 972 | if (p[0] == ':' || p[0] == '.') |
50641945 | 973 | { |
17763fd9 EZ |
974 | /* Is it a C++ or Java compound data structure? |
975 | The check on p[1] == ':' is capturing the case of "::", | |
1777feb0 | 976 | since p[0]==':' was checked above. |
17763fd9 EZ |
977 | Note that the call to decode_compound does everything |
978 | for us, including the lookup on the symbol table, so we | |
1777feb0 | 979 | can return now. */ |
17763fd9 | 980 | |
50641945 | 981 | if (p[0] == '.' || p[1] == ':') |
791dfb64 | 982 | { |
1dabb4c4 JB |
983 | /* We only perform this check for the languages where it might |
984 | make sense. For instance, Ada does not use this type of | |
985 | syntax, and trying to apply this logic on an Ada linespec | |
986 | may trigger a spurious error (for instance, decode_compound | |
987 | does not like expressions such as `ops."<"', which is a | |
988 | valid function name in Ada). */ | |
989 | if (current_language->la_language == language_c | |
990 | || current_language->la_language == language_cplus | |
991 | || current_language->la_language == language_java) | |
992 | { | |
993 | struct symtabs_and_lines values; | |
994 | volatile struct gdb_exception ex; | |
995 | char *saved_argptr = *argptr; | |
94af9270 | 996 | |
1dabb4c4 JB |
997 | if (is_quote_enclosed) |
998 | ++saved_arg; | |
dcf9f4ab | 999 | |
1dabb4c4 JB |
1000 | /* Initialize it just to avoid a GCC false warning. */ |
1001 | memset (&values, 0, sizeof (values)); | |
2f741504 | 1002 | |
1dabb4c4 JB |
1003 | TRY_CATCH (ex, RETURN_MASK_ERROR) |
1004 | { | |
1005 | values = decode_compound (self, argptr, saved_arg, p); | |
1006 | } | |
1007 | if ((is_quoted || is_squote_enclosed) && **argptr == '\'') | |
1008 | *argptr = *argptr + 1; | |
50641945 | 1009 | |
1dabb4c4 JB |
1010 | if (ex.reason >= 0) |
1011 | { | |
1012 | do_cleanups (cleanup); | |
1013 | return values; | |
1014 | } | |
50641945 | 1015 | |
1dabb4c4 JB |
1016 | if (ex.error != NOT_FOUND_ERROR) |
1017 | throw_exception (ex); | |
dcf9f4ab | 1018 | |
1dabb4c4 JB |
1019 | *argptr = saved_argptr; |
1020 | } | |
dcf9f4ab JK |
1021 | } |
1022 | else | |
50641945 | 1023 | { |
dcf9f4ab JK |
1024 | /* If there was an exception looking up a specified filename earlier, |
1025 | then check whether we were really given `function:label'. */ | |
1026 | if (file_exception.reason < 0) | |
1027 | { | |
f8eba3c6 TT |
1028 | function_symbols = find_function_symbols (argptr, p, |
1029 | is_quote_enclosed, | |
1030 | &self->user_function); | |
1031 | ||
dcf9f4ab JK |
1032 | /* If we did not find a function, re-throw the original |
1033 | exception. */ | |
f8eba3c6 | 1034 | if (!function_symbols) |
dcf9f4ab | 1035 | throw_exception (file_exception); |
f8eba3c6 TT |
1036 | |
1037 | make_cleanup (VEC_cleanup (symbolp), &function_symbols); | |
dcf9f4ab JK |
1038 | } |
1039 | ||
1040 | /* Check for single quotes on the non-filename part. */ | |
1041 | if (!is_quoted) | |
1042 | { | |
1043 | is_quoted = (**argptr | |
1044 | && strchr (get_gdb_completer_quote_characters (), | |
1045 | **argptr) != NULL); | |
1046 | if (is_quoted) | |
1047 | end_quote = skip_quoted (*argptr); | |
1048 | } | |
50641945 | 1049 | } |
50641945 | 1050 | } |
50641945 | 1051 | |
f8eba3c6 TT |
1052 | /* self->file_symtabs holds the specified file symtabs, or 0 if no file |
1053 | specified. | |
1054 | If we are parsing `function:symbol', then FUNCTION_SYMBOLS holds the | |
1055 | functions before the `:'. | |
50641945 FN |
1056 | arg no longer contains the file name. */ |
1057 | ||
0e0b460e KS |
1058 | /* If the filename was quoted, we must re-check the quotation. */ |
1059 | ||
1060 | if (end_quote == first_half && *end_quote!= '\0') | |
1061 | { | |
1062 | is_quoted = (**argptr | |
1063 | && strchr (get_gdb_completer_quote_characters (), | |
1064 | **argptr) != NULL); | |
1065 | if (is_quoted) | |
1066 | end_quote = skip_quoted (*argptr); | |
1067 | } | |
1068 | ||
a04257e6 | 1069 | /* Check whether arg is all digits (and sign). */ |
50641945 FN |
1070 | |
1071 | q = *argptr; | |
1072 | if (*q == '-' || *q == '+') | |
1073 | q++; | |
1074 | while (*q >= '0' && *q <= '9') | |
1075 | q++; | |
1076 | ||
9ef07c8c | 1077 | if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ',') |
f8eba3c6 TT |
1078 | && function_symbols == NULL) |
1079 | { | |
1080 | struct symtabs_and_lines values; | |
1081 | ||
1082 | /* We found a token consisting of all digits -- at least one digit. */ | |
1083 | values = decode_all_digits (self, argptr, q); | |
1084 | do_cleanups (cleanup); | |
1085 | return values; | |
1086 | } | |
50641945 FN |
1087 | |
1088 | /* Arg token is not digits => try it as a variable name | |
1089 | Find the next token (everything up to end or next whitespace). */ | |
1090 | ||
a04257e6 DC |
1091 | if (**argptr == '$') /* May be a convenience variable. */ |
1092 | /* One or two $ chars possible. */ | |
1093 | p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); | |
e8eb7bc5 | 1094 | else if (is_quoted || is_squote_enclosed) |
50641945 | 1095 | { |
791dfb64 | 1096 | p = end_quote; |
50641945 | 1097 | if (p[-1] != '\'') |
8a3fe4f8 | 1098 | error (_("Unmatched single quote.")); |
50641945 | 1099 | } |
d2630e69 AF |
1100 | else if (is_objc_method) |
1101 | { | |
1777feb0 | 1102 | /* allow word separators in method names for Obj-C. */ |
d2630e69 AF |
1103 | p = skip_quoted_chars (*argptr, NULL, ""); |
1104 | } | |
50641945 FN |
1105 | else |
1106 | { | |
1107 | p = skip_quoted (*argptr); | |
1108 | } | |
1109 | ||
c00f8484 | 1110 | /* Keep any important naming information. */ |
3d50dd94 | 1111 | p = keep_name_info (p, p == saved_arg || is_linespec_boundary (p[-1])); |
94af9270 | 1112 | |
50641945 FN |
1113 | copy = (char *) alloca (p - *argptr + 1); |
1114 | memcpy (copy, *argptr, p - *argptr); | |
1115 | copy[p - *argptr] = '\0'; | |
1116 | if (p != *argptr | |
1117 | && copy[0] | |
1118 | && copy[0] == copy[p - *argptr - 1] | |
c5f0f3d0 | 1119 | && strchr (get_gdb_completer_quote_characters (), copy[0]) != NULL) |
50641945 FN |
1120 | { |
1121 | copy[p - *argptr - 1] = '\0'; | |
1122 | copy++; | |
1123 | } | |
e8eb7bc5 | 1124 | else if (is_quoted || is_squote_enclosed) |
791dfb64 | 1125 | copy[p - *argptr - 1] = '\0'; |
f8eba3c6 TT |
1126 | |
1127 | *argptr = skip_spaces (p); | |
50641945 FN |
1128 | |
1129 | /* If it starts with $: may be a legitimate variable or routine name | |
1130 | (e.g. HP-UX millicode routines such as $$dyncall), or it may | |
a04257e6 | 1131 | be history value, or it may be a convenience variable. */ |
50641945 | 1132 | |
f8eba3c6 TT |
1133 | if (*copy == '$' && function_symbols == NULL) |
1134 | { | |
1135 | struct symtabs_and_lines values; | |
1136 | ||
1137 | values = decode_dollar (self, copy); | |
1138 | do_cleanups (cleanup); | |
1139 | return values; | |
1140 | } | |
50641945 | 1141 | |
0f5238ed TT |
1142 | /* Try the token as a label, but only if no file was specified, |
1143 | because we can only really find labels in the current scope. */ | |
1144 | ||
f8eba3c6 TT |
1145 | if (VEC_length (symtab_p, self->file_symtabs) == 1 |
1146 | && VEC_index (symtab_p, self->file_symtabs, 0) == NULL) | |
0f5238ed TT |
1147 | { |
1148 | struct symtabs_and_lines label_result; | |
f8eba3c6 TT |
1149 | if (decode_label (self, function_symbols, copy, &label_result)) |
1150 | { | |
1151 | do_cleanups (cleanup); | |
1152 | return label_result; | |
1153 | } | |
0f5238ed TT |
1154 | } |
1155 | ||
f8eba3c6 | 1156 | if (function_symbols) |
58438ac1 | 1157 | throw_exception (file_exception); |
9ef07c8c | 1158 | |
50641945 FN |
1159 | /* Look up that token as a variable. |
1160 | If file specified, use that file's per-file block to start with. */ | |
1161 | ||
f8eba3c6 TT |
1162 | { |
1163 | struct symtabs_and_lines values; | |
1164 | ||
1165 | values = decode_variable (self, copy); | |
1166 | do_cleanups (cleanup); | |
1167 | return values; | |
1168 | } | |
413dad4d | 1169 | } |
50641945 | 1170 | |
f8eba3c6 | 1171 | /* A constructor for linespec_state. */ |
44fe14ab | 1172 | |
f8eba3c6 TT |
1173 | static void |
1174 | linespec_state_constructor (struct linespec_state *self, | |
1175 | int flags, | |
1176 | struct symtab *default_symtab, | |
1177 | int default_line, | |
1178 | struct linespec_result *canonical) | |
1179 | { | |
1180 | memset (self, 0, sizeof (*self)); | |
1181 | self->funfirstline = (flags & DECODE_LINE_FUNFIRSTLINE) ? 1 : 0; | |
1182 | self->list_mode = (flags & DECODE_LINE_LIST_MODE) ? 1 : 0; | |
1183 | self->default_symtab = default_symtab; | |
1184 | self->default_line = default_line; | |
1185 | self->canonical = canonical; | |
1186 | self->program_space = current_program_space; | |
1187 | self->addr_set = htab_create_alloc (10, hash_address_entry, eq_address_entry, | |
1188 | xfree, xcalloc, xfree); | |
1189 | } | |
44fe14ab | 1190 | |
f8eba3c6 | 1191 | /* A destructor for linespec_state. */ |
44fe14ab DC |
1192 | |
1193 | static void | |
f8eba3c6 | 1194 | linespec_state_destructor (void *arg) |
44fe14ab | 1195 | { |
f8eba3c6 | 1196 | struct linespec_state *self = arg; |
44fe14ab | 1197 | |
f8eba3c6 TT |
1198 | xfree (self->user_filename); |
1199 | xfree (self->user_function); | |
1200 | VEC_free (symtab_p, self->file_symtabs); | |
1201 | htab_delete (self->addr_set); | |
1202 | } | |
44fe14ab | 1203 | |
f8eba3c6 | 1204 | /* See linespec.h. */ |
44fe14ab | 1205 | |
f8eba3c6 TT |
1206 | void |
1207 | decode_line_full (char **argptr, int flags, | |
1208 | struct symtab *default_symtab, | |
1209 | int default_line, struct linespec_result *canonical, | |
1210 | const char *select_mode, | |
1211 | const char *filter) | |
44fe14ab | 1212 | { |
f8eba3c6 TT |
1213 | struct symtabs_and_lines result; |
1214 | struct linespec_state state; | |
1215 | struct cleanup *cleanups; | |
1216 | char *arg_start = *argptr; | |
1217 | VEC (const_char_ptr) *filters = NULL; | |
1218 | ||
1219 | gdb_assert (canonical != NULL); | |
1220 | /* The filter only makes sense for 'all'. */ | |
1221 | gdb_assert (filter == NULL || select_mode == multiple_symbols_all); | |
1222 | gdb_assert (select_mode == NULL | |
1223 | || select_mode == multiple_symbols_all | |
1224 | || select_mode == multiple_symbols_ask | |
1225 | || select_mode == multiple_symbols_cancel); | |
1226 | gdb_assert ((flags & DECODE_LINE_LIST_MODE) == 0); | |
1227 | ||
1228 | linespec_state_constructor (&state, flags, | |
1229 | default_symtab, default_line, canonical); | |
1230 | cleanups = make_cleanup (linespec_state_destructor, &state); | |
1231 | save_current_program_space (); | |
1232 | ||
1233 | result = decode_line_internal (&state, argptr); | |
1234 | ||
1235 | gdb_assert (result.nelts == 1 || canonical->pre_expanded); | |
1236 | gdb_assert (canonical->addr_string != NULL); | |
1237 | canonical->pre_expanded = 1; | |
1238 | ||
1239 | /* Fill in the missing canonical names. */ | |
1240 | if (result.nelts > 0) | |
1241 | { | |
1242 | int i; | |
1243 | ||
1244 | if (state.canonical_names == NULL) | |
1245 | state.canonical_names = xcalloc (result.nelts, sizeof (char *)); | |
1246 | make_cleanup (xfree, state.canonical_names); | |
1247 | for (i = 0; i < result.nelts; ++i) | |
1248 | { | |
1249 | if (state.canonical_names[i] == NULL) | |
1250 | state.canonical_names[i] = savestring (arg_start, | |
1251 | *argptr - arg_start); | |
1252 | make_cleanup (xfree, state.canonical_names[i]); | |
1253 | } | |
1254 | } | |
1255 | ||
1256 | if (select_mode == NULL) | |
1257 | { | |
1258 | if (ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
1259 | select_mode = multiple_symbols_all; | |
1260 | else | |
1261 | select_mode = multiple_symbols_select_mode (); | |
1262 | } | |
1263 | ||
1264 | if (select_mode == multiple_symbols_all) | |
1265 | { | |
1266 | if (filter != NULL) | |
1267 | { | |
1268 | make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
1269 | VEC_safe_push (const_char_ptr, filters, filter); | |
1270 | filter_results (&state, &result, filters); | |
1271 | } | |
1272 | else | |
1273 | convert_results_to_lsals (&state, &result); | |
1274 | } | |
1275 | else | |
1276 | decode_line_2 (&state, &result, select_mode); | |
1277 | ||
1278 | do_cleanups (cleanups); | |
1279 | } | |
1280 | ||
1281 | struct symtabs_and_lines | |
1282 | decode_line_1 (char **argptr, int flags, | |
1283 | struct symtab *default_symtab, | |
1284 | int default_line) | |
1285 | { | |
1286 | struct symtabs_and_lines result; | |
1287 | struct linespec_state state; | |
1288 | struct cleanup *cleanups; | |
1289 | ||
1290 | linespec_state_constructor (&state, flags, | |
1291 | default_symtab, default_line, NULL); | |
1292 | cleanups = make_cleanup (linespec_state_destructor, &state); | |
1293 | save_current_program_space (); | |
1294 | ||
1295 | result = decode_line_internal (&state, argptr); | |
1296 | do_cleanups (cleanups); | |
1297 | return result; | |
1298 | } | |
1299 | ||
1300 | \f | |
1301 | ||
1302 | /* First, some functions to initialize stuff at the beggining of the | |
1303 | function. */ | |
1304 | ||
1305 | static void | |
1306 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
1307 | { | |
1308 | if (*default_symtab == 0) | |
1309 | { | |
1310 | /* Use whatever we have for the default source line. We don't use | |
1311 | get_current_or_default_symtab_and_line as it can recurse and call | |
1312 | us back! */ | |
1313 | struct symtab_and_line cursal = | |
1314 | get_current_source_symtab_and_line (); | |
1315 | ||
1316 | *default_symtab = cursal.symtab; | |
1317 | *default_line = cursal.line; | |
1318 | } | |
1319 | } | |
1320 | ||
1321 | \f | |
1322 | ||
1323 | /* Decode arg of the form *PC. */ | |
1324 | ||
1325 | static struct symtabs_and_lines | |
1326 | decode_indirect (struct linespec_state *self, char **argptr) | |
1327 | { | |
1328 | struct symtabs_and_lines values; | |
1329 | CORE_ADDR pc; | |
1330 | char *initial = *argptr; | |
1331 | ||
1332 | if (current_program_space->executing_startup) | |
1333 | /* The error message doesn't really matter, because this case | |
1334 | should only hit during breakpoint reset. */ | |
1335 | throw_error (NOT_FOUND_ERROR, _("cannot evaluate expressions while " | |
1336 | "program space is in startup")); | |
1337 | ||
44fe14ab | 1338 | (*argptr)++; |
63ffa6ee | 1339 | pc = value_as_address (parse_to_comma_and_eval (argptr)); |
44fe14ab DC |
1340 | |
1341 | values.sals = (struct symtab_and_line *) | |
1342 | xmalloc (sizeof (struct symtab_and_line)); | |
1343 | ||
1344 | values.nelts = 1; | |
1345 | values.sals[0] = find_pc_line (pc, 0); | |
1346 | values.sals[0].pc = pc; | |
1347 | values.sals[0].section = find_pc_overlay (pc); | |
ed0616c6 | 1348 | values.sals[0].explicit_pc = 1; |
44fe14ab | 1349 | |
f8eba3c6 TT |
1350 | if (self->canonical) |
1351 | self->canonical->addr_string = savestring (initial, *argptr - initial); | |
1352 | ||
44fe14ab DC |
1353 | return values; |
1354 | } | |
413dad4d DC |
1355 | |
1356 | \f | |
1357 | ||
0960f083 DC |
1358 | /* Locate the first half of the linespec, ending in a colon, period, |
1359 | or whitespace. (More or less.) Also, check to see if *ARGPTR is | |
1360 | enclosed in double quotes; if so, set is_quote_enclosed, advance | |
17763fd9 EZ |
1361 | ARGPTR past that and zero out the trailing double quote. |
1362 | If ARGPTR is just a simple name like "main", p will point to "" | |
1363 | at the end. */ | |
0960f083 DC |
1364 | |
1365 | static char * | |
1366 | locate_first_half (char **argptr, int *is_quote_enclosed) | |
1367 | { | |
1368 | char *ii; | |
1369 | char *p, *p1; | |
1370 | int has_comma; | |
1371 | ||
53907c91 JB |
1372 | /* Check if the linespec starts with an Ada operator (such as "+", |
1373 | or ">", for instance). */ | |
1374 | p = *argptr; | |
1375 | if (p[0] == '"' | |
1376 | && current_language->la_language == language_ada) | |
1377 | { | |
1378 | const struct ada_opname_map *op; | |
1379 | ||
1380 | for (op = ada_opname_table; op->encoded != NULL; op++) | |
1381 | if (strncmp (op->decoded, p, strlen (op->decoded)) == 0) | |
1382 | break; | |
1383 | if (op->encoded != NULL) | |
1384 | { | |
1385 | *is_quote_enclosed = 0; | |
1386 | return p + strlen (op->decoded); | |
1387 | } | |
1388 | } | |
1389 | ||
0960f083 DC |
1390 | /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM |
1391 | and we must isolate the first half. Outer layers will call again later | |
1392 | for the second half. | |
1393 | ||
1394 | Don't count commas that appear in argument lists of overloaded | |
1395 | functions, or in quoted strings. It's stupid to go to this much | |
1396 | trouble when the rest of the function is such an obvious roach hotel. */ | |
1397 | ii = find_toplevel_char (*argptr, ','); | |
1398 | has_comma = (ii != 0); | |
1399 | ||
a04257e6 | 1400 | /* Temporarily zap out second half to not confuse the code below. |
1777feb0 | 1401 | This is undone below. Do not change ii!! */ |
0960f083 DC |
1402 | if (has_comma) |
1403 | { | |
1404 | *ii = '\0'; | |
1405 | } | |
1406 | ||
a04257e6 DC |
1407 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION. May also be |
1408 | CLASS::MEMBER, or NAMESPACE::NAME. Look for ':', but ignore | |
1409 | inside of <>. */ | |
0960f083 DC |
1410 | |
1411 | p = *argptr; | |
1412 | if (p[0] == '"') | |
1413 | { | |
1414 | *is_quote_enclosed = 1; | |
1415 | (*argptr)++; | |
1416 | p++; | |
1417 | } | |
1418 | else | |
0e0b460e KS |
1419 | { |
1420 | *is_quote_enclosed = 0; | |
1421 | if (strchr (get_gdb_completer_quote_characters (), *p)) | |
1422 | { | |
1423 | ++(*argptr); | |
1424 | ++p; | |
1425 | } | |
1426 | } | |
731971ed KS |
1427 | |
1428 | ||
1429 | /* Check for a drive letter in the filename. This is done on all hosts | |
1430 | to capture cross-compilation environments. On Unixen, directory | |
1431 | separators are illegal in filenames, so if the user enters "e:/foo.c", | |
1432 | he is referring to a directory named "e:" and a source file named | |
1433 | "foo.c", and we still want to keep these two pieces together. */ | |
1434 | if (isalpha (p[0]) && p[1] == ':' && IS_DIR_SEPARATOR (p[2])) | |
1435 | p += 3; | |
1436 | ||
0960f083 DC |
1437 | for (; *p; p++) |
1438 | { | |
1439 | if (p[0] == '<') | |
1440 | { | |
1441 | char *temp_end = find_template_name_end (p); | |
e0881a8e | 1442 | |
0960f083 | 1443 | if (!temp_end) |
8a3fe4f8 | 1444 | error (_("malformed template specification in command")); |
0960f083 DC |
1445 | p = temp_end; |
1446 | } | |
c00f8484 KS |
1447 | |
1448 | if (p[0] == '(') | |
1449 | p = find_method_overload_end (p); | |
1450 | ||
d2630e69 | 1451 | /* Check for a colon and a plus or minus and a [ (which |
1777feb0 | 1452 | indicates an Objective-C method). */ |
889f28e2 | 1453 | if (is_objc_method_format (p)) |
d2630e69 AF |
1454 | { |
1455 | break; | |
1456 | } | |
a04257e6 | 1457 | /* Check for the end of the first half of the linespec. End of |
e8eb7bc5 KS |
1458 | line, a tab, a colon or a space. But if enclosed in double |
1459 | quotes we do not break on enclosed spaces. */ | |
0960f083 DC |
1460 | if (!*p |
1461 | || p[0] == '\t' | |
e8eb7bc5 | 1462 | || (p[0] == ':') |
0960f083 DC |
1463 | || ((p[0] == ' ') && !*is_quote_enclosed)) |
1464 | break; | |
a04257e6 | 1465 | if (p[0] == '.' && strchr (p, ':') == NULL) |
0960f083 | 1466 | { |
a04257e6 | 1467 | /* Java qualified method. Find the *last* '.', since the |
94af9270 KS |
1468 | others are package qualifiers. Stop at any open parenthesis |
1469 | which might provide overload information. */ | |
1470 | for (p1 = p; *p1 && *p1 != '('; p1++) | |
0960f083 DC |
1471 | { |
1472 | if (*p1 == '.') | |
1473 | p = p1; | |
1474 | } | |
1475 | break; | |
1476 | } | |
1477 | } | |
f8eba3c6 | 1478 | p = skip_spaces (p); |
0960f083 | 1479 | |
a04257e6 | 1480 | /* If the closing double quote was left at the end, remove it. */ |
0960f083 DC |
1481 | if (*is_quote_enclosed) |
1482 | { | |
1483 | char *closing_quote = strchr (p - 1, '"'); | |
e0881a8e | 1484 | |
0960f083 DC |
1485 | if (closing_quote && closing_quote[1] == '\0') |
1486 | *closing_quote = '\0'; | |
1487 | } | |
1488 | ||
a04257e6 DC |
1489 | /* Now that we've safely parsed the first half, put back ',' so |
1490 | outer layers can see it. */ | |
0960f083 DC |
1491 | if (has_comma) |
1492 | *ii = ','; | |
1493 | ||
1494 | return p; | |
1495 | } | |
1496 | ||
1497 | \f | |
1498 | ||
d2630e69 AF |
1499 | /* Here's where we recognise an Objective-C Selector. An Objective C |
1500 | selector may be implemented by more than one class, therefore it | |
1501 | may represent more than one method/function. This gives us a | |
1502 | situation somewhat analogous to C++ overloading. If there's more | |
1503 | than one method that could represent the selector, then use some of | |
1504 | the existing C++ code to let the user choose one. */ | |
1505 | ||
f8eba3c6 TT |
1506 | static struct symtabs_and_lines |
1507 | decode_objc (struct linespec_state *self, char **argptr) | |
d2630e69 | 1508 | { |
f8eba3c6 TT |
1509 | struct collect_info info; |
1510 | VEC (const_char_ptr) *symbol_names = NULL; | |
1511 | char *new_argptr; | |
1512 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr), | |
1513 | &symbol_names); | |
1514 | ||
1515 | info.state = self; | |
1516 | info.result.sals = NULL; | |
1517 | info.result.nelts = 0; | |
f8eba3c6 TT |
1518 | |
1519 | new_argptr = find_imps (*argptr, &symbol_names); | |
1520 | if (VEC_empty (const_char_ptr, symbol_names)) | |
1521 | { | |
1522 | do_cleanups (cleanup); | |
1523 | return info.result; | |
1524 | } | |
d2630e69 | 1525 | |
f8eba3c6 | 1526 | add_all_symbol_names_from_pspace (&info, NULL, symbol_names); |
d2630e69 | 1527 | |
f8eba3c6 | 1528 | if (info.result.nelts > 0) |
d2630e69 | 1529 | { |
f8eba3c6 | 1530 | char *saved_arg; |
d2630e69 | 1531 | |
f8eba3c6 TT |
1532 | saved_arg = alloca (new_argptr - *argptr + 1); |
1533 | memcpy (saved_arg, *argptr, new_argptr - *argptr); | |
1534 | saved_arg[new_argptr - *argptr] = '\0'; | |
d2630e69 | 1535 | |
f8eba3c6 | 1536 | if (self->canonical) |
d2630e69 | 1537 | { |
f8eba3c6 TT |
1538 | self->canonical->pre_expanded = 1; |
1539 | if (self->user_filename) | |
1540 | self->canonical->addr_string | |
1541 | = xstrprintf ("%s:%s", self->user_filename, saved_arg); | |
1542 | else | |
1543 | self->canonical->addr_string = xstrdup (saved_arg); | |
d2630e69 | 1544 | } |
d2630e69 AF |
1545 | } |
1546 | ||
f8eba3c6 | 1547 | *argptr = new_argptr; |
d2630e69 | 1548 | |
f8eba3c6 TT |
1549 | do_cleanups (cleanup); |
1550 | return info.result; | |
d2630e69 AF |
1551 | } |
1552 | ||
614b3b14 | 1553 | /* This handles C++ and Java compound data structures. P should point |
17763fd9 EZ |
1554 | at the first component separator, i.e. double-colon or period. As |
1555 | an example, on entrance to this function we could have ARGPTR | |
1556 | pointing to "AAA::inA::fun" and P pointing to "::inA::fun". */ | |
614b3b14 DC |
1557 | |
1558 | static struct symtabs_and_lines | |
f8eba3c6 TT |
1559 | decode_compound (struct linespec_state *self, |
1560 | char **argptr, char *the_real_saved_arg, char *p) | |
614b3b14 DC |
1561 | { |
1562 | struct symtabs_and_lines values; | |
f8eba3c6 | 1563 | char *p2; |
614b3b14 DC |
1564 | char *saved_arg2 = *argptr; |
1565 | char *temp_end; | |
1566 | struct symbol *sym; | |
614b3b14 | 1567 | char *copy; |
f8eba3c6 TT |
1568 | VEC (symbolp) *sym_classes; |
1569 | char *saved_arg, *class_name; | |
1570 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
c00f8484 KS |
1571 | |
1572 | /* If the user specified any completer quote characters in the input, | |
1573 | strip them. They are superfluous. */ | |
1574 | saved_arg = alloca (strlen (the_real_saved_arg) + 1); | |
1575 | { | |
1576 | char *dst = saved_arg; | |
1577 | char *src = the_real_saved_arg; | |
1578 | char *quotes = get_gdb_completer_quote_characters (); | |
1579 | while (*src != '\0') | |
1580 | { | |
1581 | if (strchr (quotes, *src) == NULL) | |
1582 | *dst++ = *src; | |
1583 | ++src; | |
1584 | } | |
1585 | *dst = '\0'; | |
1586 | } | |
614b3b14 | 1587 | |
17763fd9 EZ |
1588 | /* First check for "global" namespace specification, of the form |
1589 | "::foo". If found, skip over the colons and jump to normal | |
1590 | symbol processing. I.e. the whole line specification starts with | |
1777feb0 | 1591 | "::" (note the condition that *argptr == p). */ |
614b3b14 DC |
1592 | if (p[0] == ':' |
1593 | && ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))) | |
1594 | saved_arg2 += 2; | |
1595 | ||
87b3ede8 DC |
1596 | /* Given our example "AAA::inA::fun", we have two cases to consider: |
1597 | ||
1598 | 1) AAA::inA is the name of a class. In that case, presumably it | |
1599 | has a method called "fun"; we then look up that method using | |
1600 | find_method. | |
1601 | ||
1602 | 2) AAA::inA isn't the name of a class. In that case, either the | |
c00f8484 KS |
1603 | user made a typo, AAA::inA is the name of a namespace, or it is |
1604 | the name of a minimal symbol. | |
f8eba3c6 | 1605 | In this case we just delegate to decode_variable. |
87b3ede8 DC |
1606 | |
1607 | Thus, our first task is to find everything before the last set of | |
1608 | double-colons and figure out if it's the name of a class. So we | |
1609 | first loop through all of the double-colons. */ | |
614b3b14 | 1610 | |
a04257e6 | 1611 | p2 = p; /* Save for restart. */ |
17763fd9 | 1612 | |
1777feb0 | 1613 | /* This is very messy. Following the example above we have now the |
17763fd9 EZ |
1614 | following pointers: |
1615 | p -> "::inA::fun" | |
1616 | argptr -> "AAA::inA::fun | |
1617 | saved_arg -> "AAA::inA::fun | |
1618 | saved_arg2 -> "AAA::inA::fun | |
1777feb0 | 1619 | p2 -> "::inA::fun". */ |
17763fd9 EZ |
1620 | |
1621 | /* In the loop below, with these strings, we'll make 2 passes, each | |
1777feb0 | 1622 | is marked in comments. */ |
17763fd9 | 1623 | |
614b3b14 DC |
1624 | while (1) |
1625 | { | |
c00f8484 KS |
1626 | static char *break_characters = " \t("; |
1627 | ||
a04257e6 | 1628 | /* Move pointer up to next possible class/namespace token. */ |
17763fd9 | 1629 | |
a04257e6 | 1630 | p = p2 + 1; /* Restart with old value +1. */ |
17763fd9 EZ |
1631 | |
1632 | /* PASS1: at this point p2->"::inA::fun", so p->":inA::fun", | |
1633 | i.e. if there is a double-colon, p will now point to the | |
1777feb0 | 1634 | second colon. */ |
87b3ede8 | 1635 | /* PASS2: p2->"::fun", p->":fun" */ |
17763fd9 | 1636 | |
a04257e6 | 1637 | /* Move pointer ahead to next double-colon. */ |
c00f8484 KS |
1638 | while (*p |
1639 | && strchr (break_characters, *p) == NULL | |
1640 | && strchr (get_gdb_completer_quote_characters (), *p) == NULL) | |
614b3b14 | 1641 | { |
12907978 KS |
1642 | if (current_language->la_language == language_cplus) |
1643 | p += cp_validate_operator (p); | |
1644 | ||
614b3b14 DC |
1645 | if (p[0] == '<') |
1646 | { | |
1647 | temp_end = find_template_name_end (p); | |
1648 | if (!temp_end) | |
8a3fe4f8 | 1649 | error (_("malformed template specification in command")); |
614b3b14 DC |
1650 | p = temp_end; |
1651 | } | |
17763fd9 EZ |
1652 | /* Note that, since, at the start of this loop, p would be |
1653 | pointing to the second colon in a double-colon, we only | |
1654 | satisfy the condition below if there is another | |
1777feb0 MS |
1655 | double-colon to the right (after). I.e. there is another |
1656 | component that can be a class or a namespace. I.e, if at | |
17763fd9 EZ |
1657 | the beginning of this loop (PASS1), we had |
1658 | p->":inA::fun", we'll trigger this when p has been | |
1659 | advanced to point to "::fun". */ | |
1777feb0 | 1660 | /* PASS2: we will not trigger this. */ |
614b3b14 | 1661 | else if ((p[0] == ':') && (p[1] == ':')) |
a04257e6 | 1662 | break; /* Found double-colon. */ |
614b3b14 | 1663 | else |
c00f8484 KS |
1664 | { |
1665 | /* PASS2: We'll keep getting here, until P points to one of the | |
1666 | break characters, at which point we exit this loop. */ | |
2b1dbab0 KS |
1667 | if (*p) |
1668 | { | |
1669 | if (p[1] == '(' | |
1670 | && strncmp (&p[1], CP_ANONYMOUS_NAMESPACE_STR, | |
1671 | CP_ANONYMOUS_NAMESPACE_LEN) == 0) | |
1672 | p += CP_ANONYMOUS_NAMESPACE_LEN; | |
1673 | else if (strchr (break_characters, *p) == NULL) | |
1674 | ++p; | |
1675 | } | |
c00f8484 | 1676 | } |
614b3b14 DC |
1677 | } |
1678 | ||
1679 | if (*p != ':') | |
17763fd9 EZ |
1680 | break; /* Out of the while (1). This would happen |
1681 | for instance if we have looked up | |
1682 | unsuccessfully all the components of the | |
1777feb0 | 1683 | string, and p->""(PASS2). */ |
17763fd9 | 1684 | |
c00f8484 | 1685 | /* We get here if p points to one of the break characters or "" (i.e., |
1777feb0 | 1686 | string ended). */ |
17763fd9 EZ |
1687 | /* Save restart for next time around. */ |
1688 | p2 = p; | |
1689 | /* Restore argptr as it was on entry to this function. */ | |
1690 | *argptr = saved_arg2; | |
87b3ede8 DC |
1691 | /* PASS1: at this point p->"::fun" argptr->"AAA::inA::fun", |
1692 | p2->"::fun". */ | |
17763fd9 EZ |
1693 | |
1694 | /* All ready for next pass through the loop. */ | |
614b3b14 DC |
1695 | } /* while (1) */ |
1696 | ||
87b3ede8 | 1697 | |
1777feb0 | 1698 | /* Start of lookup in the symbol tables. */ |
87b3ede8 DC |
1699 | |
1700 | /* Lookup in the symbol table the substring between argptr and | |
1777feb0 | 1701 | p. Note, this call changes the value of argptr. */ |
87b3ede8 DC |
1702 | /* Before the call, argptr->"AAA::inA::fun", |
1703 | p->"", p2->"::fun". After the call: argptr->"fun", p, p2 | |
1704 | unchanged. */ | |
f8eba3c6 TT |
1705 | sym_classes = lookup_prefix_sym (argptr, p2, self->file_symtabs, |
1706 | &class_name); | |
1707 | make_cleanup (VEC_cleanup (symbolp), &sym_classes); | |
1708 | make_cleanup (xfree, class_name); | |
1709 | ||
1710 | /* If a class has been found, then we're in case 1 above. So we | |
1711 | look up "fun" as a method of those classes. */ | |
1712 | if (!VEC_empty (symbolp, sym_classes)) | |
87b3ede8 DC |
1713 | { |
1714 | /* Arg token is not digits => try it as a function name. | |
1715 | Find the next token (everything up to end or next | |
1716 | blank). */ | |
1717 | if (**argptr | |
1718 | && strchr (get_gdb_completer_quote_characters (), | |
1719 | **argptr) != NULL) | |
1720 | { | |
1721 | p = skip_quoted (*argptr); | |
1722 | *argptr = *argptr + 1; | |
1723 | } | |
1724 | else | |
1725 | { | |
1726 | /* At this point argptr->"fun". */ | |
94af9270 | 1727 | char *a; |
e0881a8e | 1728 | |
87b3ede8 | 1729 | p = *argptr; |
94af9270 KS |
1730 | while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':' |
1731 | && *p != '(') | |
87b3ede8 DC |
1732 | p++; |
1733 | /* At this point p->"". String ended. */ | |
12907978 KS |
1734 | /* Nope, C++ operators could have spaces in them |
1735 | ("foo::operator <" or "foo::operator delete []"). | |
1736 | I apologize, this is a bit hacky... */ | |
1737 | if (current_language->la_language == language_cplus | |
1738 | && *p == ' ' && p - 8 - *argptr + 1 > 0) | |
1739 | { | |
1740 | /* The above loop has already swallowed "operator". */ | |
1741 | p += cp_validate_operator (p - 8) - 8; | |
1742 | } | |
94af9270 | 1743 | |
c00f8484 | 1744 | /* Keep any important naming information. */ |
3d50dd94 | 1745 | p = keep_name_info (p, 1); |
87b3ede8 DC |
1746 | } |
1747 | ||
1748 | /* Allocate our own copy of the substring between argptr and | |
1777feb0 | 1749 | p. */ |
87b3ede8 DC |
1750 | copy = (char *) alloca (p - *argptr + 1); |
1751 | memcpy (copy, *argptr, p - *argptr); | |
1752 | copy[p - *argptr] = '\0'; | |
1753 | if (p != *argptr | |
1754 | && copy[p - *argptr - 1] | |
1755 | && strchr (get_gdb_completer_quote_characters (), | |
1756 | copy[p - *argptr - 1]) != NULL) | |
1757 | copy[p - *argptr - 1] = '\0'; | |
1758 | ||
1777feb0 | 1759 | /* At this point copy->"fun", p->"". */ |
87b3ede8 DC |
1760 | |
1761 | /* No line number may be specified. */ | |
f8eba3c6 | 1762 | *argptr = skip_spaces (p); |
87b3ede8 DC |
1763 | /* At this point arptr->"". */ |
1764 | ||
1777feb0 | 1765 | /* Look for copy as a method of sym_class. */ |
87b3ede8 DC |
1766 | /* At this point copy->"fun", sym_class is "AAA:inA", |
1767 | saved_arg->"AAA::inA::fun". This concludes the scanning of | |
1768 | the string for possible components matches. If we find it | |
1777feb0 | 1769 | here, we return. If not, and we are at the and of the string, |
87b3ede8 DC |
1770 | we'll lookup the whole string in the symbol tables. */ |
1771 | ||
f8eba3c6 TT |
1772 | values = find_method (self, saved_arg, copy, class_name, sym_classes); |
1773 | ||
1774 | do_cleanups (cleanup); | |
1775 | return values; | |
1777feb0 | 1776 | } /* End if symbol found. */ |
87b3ede8 DC |
1777 | |
1778 | ||
1779 | /* We couldn't find a class, so we're in case 2 above. We check the | |
f8eba3c6 TT |
1780 | entire name as a symbol instead. The simplest way to do this is |
1781 | to just throw an exception and let our caller fall through to | |
1782 | decode_variable. */ | |
87b3ede8 | 1783 | |
f8eba3c6 TT |
1784 | throw_error (NOT_FOUND_ERROR, _("see caller, this text doesn't matter")); |
1785 | } | |
c00f8484 | 1786 | |
f8eba3c6 TT |
1787 | /* An instance of this type is used when collecting prefix symbols for |
1788 | decode_compound. */ | |
17763fd9 | 1789 | |
f8eba3c6 TT |
1790 | struct decode_compound_collector |
1791 | { | |
1792 | /* The result vector. */ | |
1793 | VEC (symbolp) *symbols; | |
3a93a0c2 | 1794 | |
f8eba3c6 TT |
1795 | /* A hash table of all symbols we found. We use this to avoid |
1796 | adding any symbol more than once. */ | |
1797 | htab_t unique_syms; | |
1798 | }; | |
3a93a0c2 | 1799 | |
f8eba3c6 TT |
1800 | /* A callback for iterate_over_symbols that is used by |
1801 | lookup_prefix_sym to collect type symbols. */ | |
c00f8484 | 1802 | |
f8eba3c6 TT |
1803 | static int |
1804 | collect_one_symbol (struct symbol *sym, void *d) | |
1805 | { | |
1806 | struct decode_compound_collector *collector = d; | |
1807 | void **slot; | |
1808 | struct type *t; | |
614b3b14 | 1809 | |
f8eba3c6 | 1810 | if (SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
8e704927 | 1811 | return 1; /* Continue iterating. */ |
f8eba3c6 TT |
1812 | |
1813 | t = SYMBOL_TYPE (sym); | |
1814 | CHECK_TYPEDEF (t); | |
1815 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT | |
1816 | && TYPE_CODE (t) != TYPE_CODE_UNION | |
1817 | && TYPE_CODE (t) != TYPE_CODE_NAMESPACE) | |
8e704927 | 1818 | return 1; /* Continue iterating. */ |
614b3b14 | 1819 | |
f8eba3c6 TT |
1820 | slot = htab_find_slot (collector->unique_syms, sym, INSERT); |
1821 | if (!*slot) | |
1822 | { | |
1823 | *slot = sym; | |
1824 | VEC_safe_push (symbolp, collector->symbols, sym); | |
1825 | } | |
1826 | ||
8e704927 | 1827 | return 1; /* Continue iterating. */ |
f8eba3c6 | 1828 | } |
93d91629 DC |
1829 | |
1830 | /* Return the symbol corresponding to the substring of *ARGPTR ending | |
1831 | at P, allowing whitespace. Also, advance *ARGPTR past the symbol | |
1832 | name in question, the compound object separator ("::" or "."), and | |
17763fd9 | 1833 | whitespace. Note that *ARGPTR is changed whether or not the |
f8eba3c6 | 1834 | this call finds anything (i.e we return NULL). As an |
17763fd9 | 1835 | example, say ARGPTR is "AAA::inA::fun" and P is "::inA::fun". */ |
93d91629 | 1836 | |
f8eba3c6 TT |
1837 | static VEC (symbolp) * |
1838 | lookup_prefix_sym (char **argptr, char *p, VEC (symtab_p) *file_symtabs, | |
1839 | char **class_name) | |
93d91629 DC |
1840 | { |
1841 | char *p1; | |
1842 | char *copy; | |
f8eba3c6 TT |
1843 | int ix; |
1844 | struct symtab *elt; | |
1845 | struct decode_compound_collector collector; | |
1846 | struct cleanup *outer; | |
1847 | struct cleanup *cleanup; | |
1848 | struct block *search_block; | |
93d91629 DC |
1849 | |
1850 | /* Extract the class name. */ | |
1851 | p1 = p; | |
1852 | while (p != *argptr && p[-1] == ' ') | |
1853 | --p; | |
f8eba3c6 | 1854 | copy = (char *) xmalloc (p - *argptr + 1); |
93d91629 DC |
1855 | memcpy (copy, *argptr, p - *argptr); |
1856 | copy[p - *argptr] = 0; | |
f8eba3c6 TT |
1857 | *class_name = copy; |
1858 | outer = make_cleanup (xfree, copy); | |
93d91629 | 1859 | |
17763fd9 | 1860 | /* Discard the class name from the argptr. */ |
93d91629 | 1861 | p = p1 + (p1[0] == ':' ? 2 : 1); |
f8eba3c6 | 1862 | p = skip_spaces (p); |
93d91629 DC |
1863 | *argptr = p; |
1864 | ||
17763fd9 | 1865 | /* At this point p1->"::inA::fun", p->"inA::fun" copy->"AAA", |
1777feb0 | 1866 | argptr->"inA::fun". */ |
17763fd9 | 1867 | |
f8eba3c6 TT |
1868 | collector.symbols = NULL; |
1869 | make_cleanup (VEC_cleanup (symbolp), &collector.symbols); | |
e0881a8e | 1870 | |
f8eba3c6 TT |
1871 | collector.unique_syms = htab_create_alloc (1, htab_hash_pointer, |
1872 | htab_eq_pointer, NULL, | |
1873 | xcalloc, xfree); | |
1874 | cleanup = make_cleanup_htab_delete (collector.unique_syms); | |
e0881a8e | 1875 | |
f8eba3c6 TT |
1876 | for (ix = 0; VEC_iterate (symtab_p, file_symtabs, ix, elt); ++ix) |
1877 | { | |
1878 | if (elt == NULL) | |
1879 | { | |
1880 | iterate_over_all_matching_symtabs (copy, STRUCT_DOMAIN, | |
1881 | collect_one_symbol, &collector, | |
1882 | NULL); | |
1883 | iterate_over_all_matching_symtabs (copy, VAR_DOMAIN, | |
1884 | collect_one_symbol, &collector, | |
1885 | NULL); | |
1886 | } | |
1887 | else | |
1888 | { | |
1889 | struct block *search_block; | |
1890 | ||
1891 | /* Program spaces that are executing startup should have | |
1892 | been filtered out earlier. */ | |
1893 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
1894 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
1895 | search_block = get_search_block (elt); | |
1896 | LA_ITERATE_OVER_SYMBOLS (search_block, copy, STRUCT_DOMAIN, | |
1897 | collect_one_symbol, &collector); | |
1898 | LA_ITERATE_OVER_SYMBOLS (search_block, copy, VAR_DOMAIN, | |
1899 | collect_one_symbol, &collector); | |
1e5a1abc KS |
1900 | } |
1901 | } | |
1902 | ||
f8eba3c6 TT |
1903 | do_cleanups (cleanup); |
1904 | discard_cleanups (outer); | |
1905 | return collector.symbols; | |
93d91629 DC |
1906 | } |
1907 | ||
f8eba3c6 TT |
1908 | /* A qsort comparison function for symbols. The resulting order does |
1909 | not actually matter; we just need to be able to sort them so that | |
1910 | symbols with the same program space end up next to each other. */ | |
4224873a | 1911 | |
f8eba3c6 TT |
1912 | static int |
1913 | compare_symbols (const void *a, const void *b) | |
4224873a | 1914 | { |
f8eba3c6 TT |
1915 | struct symbol * const *sa = a; |
1916 | struct symbol * const *sb = b; | |
1917 | uintptr_t uia, uib; | |
1918 | ||
1919 | uia = (uintptr_t) SYMTAB_PSPACE (SYMBOL_SYMTAB (*sa)); | |
1920 | uib = (uintptr_t) SYMTAB_PSPACE (SYMBOL_SYMTAB (*sb)); | |
1921 | ||
1922 | if (uia < uib) | |
1923 | return -1; | |
1924 | if (uia > uib) | |
1925 | return 1; | |
1926 | ||
1927 | uia = (uintptr_t) *sa; | |
1928 | uib = (uintptr_t) *sb; | |
1929 | ||
1930 | if (uia < uib) | |
1931 | return -1; | |
1932 | if (uia > uib) | |
1933 | return 1; | |
1934 | ||
1935 | return 0; | |
1936 | } | |
1937 | ||
1938 | /* Look for all the matching instances of each symbol in NAMES. Only | |
1939 | instances from PSPACE are considered; other program spaces are | |
1940 | handled by our caller. If PSPACE is NULL, then all program spaces | |
1941 | are considered. Results are stored into INFO. */ | |
1942 | ||
1943 | static void | |
1944 | add_all_symbol_names_from_pspace (struct collect_info *info, | |
1945 | struct program_space *pspace, | |
1946 | VEC (const_char_ptr) *names) | |
1947 | { | |
1948 | int ix; | |
1949 | const char *iter; | |
1950 | ||
1951 | for (ix = 0; VEC_iterate (const_char_ptr, names, ix, iter); ++ix) | |
1952 | add_matching_symbols_to_info (iter, info, pspace); | |
1953 | } | |
1954 | ||
1955 | static void | |
1956 | find_superclass_methods (VEC (typep) *superclasses, | |
1957 | const char *name, | |
1958 | VEC (const_char_ptr) **result_names) | |
1959 | { | |
1960 | int old_len = VEC_length (const_char_ptr, *result_names); | |
1961 | VEC (typep) *iter_classes; | |
1962 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
1963 | ||
1964 | iter_classes = superclasses; | |
1965 | while (1) | |
1966 | { | |
1967 | VEC (typep) *new_supers = NULL; | |
1968 | int ix; | |
1969 | struct type *t; | |
1970 | ||
1971 | make_cleanup (VEC_cleanup (typep), &new_supers); | |
1972 | for (ix = 0; VEC_iterate (typep, iter_classes, ix, t); ++ix) | |
1973 | find_methods (t, name, result_names, &new_supers); | |
1974 | ||
1975 | if (VEC_length (const_char_ptr, *result_names) != old_len | |
1976 | || VEC_empty (typep, new_supers)) | |
1977 | break; | |
4224873a | 1978 | |
f8eba3c6 TT |
1979 | iter_classes = new_supers; |
1980 | } | |
4224873a | 1981 | |
f8eba3c6 TT |
1982 | do_cleanups (cleanup); |
1983 | } | |
1984 | ||
1985 | /* This finds the method COPY in the class whose type is given by one | |
1986 | of the symbols in SYM_CLASSES. */ | |
1987 | ||
1988 | static struct symtabs_and_lines | |
1989 | find_method (struct linespec_state *self, char *saved_arg, | |
1990 | char *copy, const char *class_name, VEC (symbolp) *sym_classes) | |
1991 | { | |
1992 | char *canon; | |
1993 | struct symbol *sym; | |
1994 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
1995 | int ix; | |
1996 | int last_result_len; | |
1997 | VEC (typep) *superclass_vec; | |
1998 | VEC (const_char_ptr) *result_names; | |
1999 | struct collect_info info; | |
2000 | char *name_iter; | |
4224873a | 2001 | |
f8eba3c6 TT |
2002 | /* NAME is typed by the user: it needs to be canonicalized before |
2003 | searching the symbol tables. */ | |
2004 | canon = cp_canonicalize_string_no_typedefs (copy); | |
2005 | if (canon != NULL) | |
4224873a | 2006 | { |
f8eba3c6 TT |
2007 | copy = canon; |
2008 | make_cleanup (xfree, copy); | |
2009 | } | |
4224873a | 2010 | |
f8eba3c6 TT |
2011 | /* Sort symbols so that symbols with the same program space are next |
2012 | to each other. */ | |
2013 | qsort (VEC_address (symbolp, sym_classes), | |
2014 | VEC_length (symbolp, sym_classes), | |
2015 | sizeof (symbolp), | |
2016 | compare_symbols); | |
2017 | ||
2018 | info.state = self; | |
2019 | info.result.sals = NULL; | |
2020 | info.result.nelts = 0; | |
f8eba3c6 TT |
2021 | |
2022 | /* Iterate over all the types, looking for the names of existing | |
2023 | methods matching COPY. If we cannot find a direct method in a | |
2024 | given program space, then we consider inherited methods; this is | |
2025 | not ideal (ideal would be to respect C++ hiding rules), but it | |
2026 | seems good enough and is what GDB has historically done. We only | |
2027 | need to collect the names because later we find all symbols with | |
2028 | those names. This loop is written in a somewhat funny way | |
2029 | because we collect data across the program space before deciding | |
2030 | what to do. */ | |
2031 | superclass_vec = NULL; | |
2032 | make_cleanup (VEC_cleanup (typep), &superclass_vec); | |
2033 | result_names = NULL; | |
2034 | make_cleanup (VEC_cleanup (const_char_ptr), &result_names); | |
2035 | last_result_len = 0; | |
2036 | for (ix = 0; VEC_iterate (symbolp, sym_classes, ix, sym); ++ix) | |
2037 | { | |
2038 | struct type *t; | |
2039 | struct program_space *pspace; | |
2040 | ||
2041 | /* Program spaces that are executing startup should have | |
2042 | been filtered out earlier. */ | |
2043 | gdb_assert (!SYMTAB_PSPACE (SYMBOL_SYMTAB (sym))->executing_startup); | |
2044 | pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
2045 | set_current_program_space (pspace); | |
2046 | t = check_typedef (SYMBOL_TYPE (sym)); | |
2047 | find_methods (t, copy, &result_names, &superclass_vec); | |
2048 | ||
2049 | /* Handle all items from a single program space at once; and be | |
2050 | sure not to miss the last batch. */ | |
2051 | if (ix == VEC_length (symbolp, sym_classes) - 1 | |
2052 | || (pspace | |
2053 | != SYMTAB_PSPACE (SYMBOL_SYMTAB (VEC_index (symbolp, sym_classes, | |
2054 | ix + 1))))) | |
4224873a | 2055 | { |
f8eba3c6 TT |
2056 | /* If we did not find a direct implementation anywhere in |
2057 | this program space, consider superclasses. */ | |
2058 | if (VEC_length (const_char_ptr, result_names) == last_result_len) | |
2059 | find_superclass_methods (superclass_vec, copy, &result_names); | |
2060 | ||
2061 | /* We have a list of candidate symbol names, so now we | |
2062 | iterate over the symbol tables looking for all | |
2063 | matches in this pspace. */ | |
2064 | add_all_symbol_names_from_pspace (&info, pspace, result_names); | |
2065 | ||
2066 | VEC_truncate (typep, superclass_vec, 0); | |
2067 | last_result_len = VEC_length (const_char_ptr, result_names); | |
4224873a | 2068 | } |
4224873a | 2069 | } |
f8eba3c6 TT |
2070 | |
2071 | if (info.result.nelts > 0) | |
4224873a | 2072 | { |
f8eba3c6 | 2073 | if (self->canonical) |
94af9270 | 2074 | { |
f8eba3c6 TT |
2075 | self->canonical->pre_expanded = 1; |
2076 | if (self->user_filename) | |
2077 | self->canonical->addr_string | |
2078 | = xstrprintf ("%s:%s", self->user_filename, saved_arg); | |
2079 | else | |
2080 | self->canonical->addr_string = xstrdup (saved_arg); | |
94af9270 KS |
2081 | } |
2082 | ||
f8eba3c6 TT |
2083 | do_cleanups (cleanup); |
2084 | ||
2085 | return info.result; | |
4224873a | 2086 | } |
f8eba3c6 TT |
2087 | |
2088 | if (copy[0] == '~') | |
2089 | cplusplus_error (saved_arg, | |
2090 | "the class `%s' does not have destructor defined\n", | |
2091 | class_name); | |
4224873a | 2092 | else |
f8eba3c6 TT |
2093 | cplusplus_error (saved_arg, |
2094 | "the class %s does not have any method named %s\n", | |
2095 | class_name, copy); | |
2096 | } | |
2097 | ||
2098 | \f | |
2099 | ||
2100 | /* This object is used when collecting all matching symtabs. */ | |
2101 | ||
2102 | struct symtab_collector | |
2103 | { | |
2104 | /* The result vector of symtabs. */ | |
2105 | VEC (symtab_p) *symtabs; | |
2106 | ||
2107 | /* This is used to ensure the symtabs are unique. */ | |
2108 | htab_t symtab_table; | |
2109 | }; | |
2110 | ||
2111 | /* Callback for iterate_over_symtabs. */ | |
2112 | ||
2113 | static int | |
2114 | add_symtabs_to_list (struct symtab *symtab, void *d) | |
2115 | { | |
2116 | struct symtab_collector *data = d; | |
2117 | void **slot; | |
2118 | ||
2119 | slot = htab_find_slot (data->symtab_table, symtab, INSERT); | |
2120 | if (!*slot) | |
4224873a | 2121 | { |
f8eba3c6 TT |
2122 | *slot = symtab; |
2123 | VEC_safe_push (symtab_p, data->symtabs, symtab); | |
4224873a | 2124 | } |
f8eba3c6 TT |
2125 | |
2126 | return 0; | |
4224873a DC |
2127 | } |
2128 | ||
f8eba3c6 TT |
2129 | /* Given a file name, return a VEC of all matching symtabs. */ |
2130 | ||
2131 | static VEC (symtab_p) * | |
2132 | collect_symtabs_from_filename (const char *file) | |
2133 | { | |
2134 | struct symtab_collector collector; | |
2135 | struct cleanup *cleanups; | |
2136 | struct program_space *pspace; | |
2137 | ||
2138 | collector.symtabs = NULL; | |
2139 | collector.symtab_table = htab_create (1, htab_hash_pointer, htab_eq_pointer, | |
2140 | NULL); | |
2141 | cleanups = make_cleanup_htab_delete (collector.symtab_table); | |
2142 | ||
2143 | /* Find that file's data. */ | |
2144 | ALL_PSPACES (pspace) | |
2145 | { | |
2146 | if (pspace->executing_startup) | |
2147 | continue; | |
2148 | ||
2149 | set_current_program_space (pspace); | |
2150 | iterate_over_symtabs (file, add_symtabs_to_list, &collector); | |
2151 | } | |
f3c39e76 | 2152 | |
f8eba3c6 TT |
2153 | do_cleanups (cleanups); |
2154 | return collector.symtabs; | |
2155 | } | |
2156 | ||
2157 | /* Return all the symtabs associated to the filename given by the | |
2158 | substring of *ARGPTR ending at P, and advance ARGPTR past that | |
2159 | filename. */ | |
f3c39e76 | 2160 | |
f8eba3c6 TT |
2161 | static VEC (symtab_p) * |
2162 | symtabs_from_filename (char **argptr, char *p, int is_quote_enclosed, | |
2163 | char **user_filename) | |
f3c39e76 DC |
2164 | { |
2165 | char *p1; | |
2166 | char *copy; | |
f8eba3c6 TT |
2167 | struct cleanup *outer; |
2168 | VEC (symtab_p) *result; | |
f3c39e76 DC |
2169 | |
2170 | p1 = p; | |
2171 | while (p != *argptr && p[-1] == ' ') | |
2172 | --p; | |
2173 | if ((*p == '"') && is_quote_enclosed) | |
2174 | --p; | |
f8eba3c6 TT |
2175 | copy = xmalloc (p - *argptr + 1); |
2176 | outer = make_cleanup (xfree, copy); | |
f3c39e76 | 2177 | memcpy (copy, *argptr, p - *argptr); |
a04257e6 | 2178 | /* It may have the ending quote right after the file name. */ |
0e0b460e KS |
2179 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') |
2180 | || copy[p - *argptr - 1] == '\'') | |
f3c39e76 DC |
2181 | copy[p - *argptr - 1] = 0; |
2182 | else | |
2183 | copy[p - *argptr] = 0; | |
2184 | ||
f8eba3c6 TT |
2185 | result = collect_symtabs_from_filename (copy); |
2186 | ||
2187 | if (VEC_empty (symtab_p, result)) | |
f3c39e76 | 2188 | { |
b96e2927 PA |
2189 | if (!have_full_symbols () && !have_partial_symbols ()) |
2190 | throw_error (NOT_FOUND_ERROR, | |
3e43a32a MS |
2191 | _("No symbol table is loaded. " |
2192 | "Use the \"file\" command.")); | |
109c3e39 | 2193 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), copy); |
f3c39e76 DC |
2194 | } |
2195 | ||
2196 | /* Discard the file name from the arg. */ | |
edb2aadf | 2197 | if (*p1 == '\0') |
f8eba3c6 TT |
2198 | *argptr = p1; |
2199 | else | |
2200 | *argptr = skip_spaces (p1 + 1); | |
2201 | ||
2202 | discard_cleanups (outer); | |
2203 | *user_filename = copy; | |
2204 | return result; | |
2205 | } | |
2206 | ||
2207 | /* A callback used by iterate_over_all_matching_symtabs that collects | |
2208 | symbols for find_function_symbols. */ | |
2209 | ||
2210 | static int | |
2211 | collect_function_symbols (struct symbol *sym, void *arg) | |
2212 | { | |
2213 | VEC (symbolp) **syms = arg; | |
f3c39e76 | 2214 | |
f8eba3c6 TT |
2215 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
2216 | VEC_safe_push (symbolp, *syms, sym); | |
2217 | ||
8e704927 | 2218 | return 1; /* Continue iterating. */ |
f3c39e76 DC |
2219 | } |
2220 | ||
9ef07c8c TT |
2221 | /* Look up a function symbol in *ARGPTR. If found, advance *ARGPTR |
2222 | and return the symbol. If not found, return NULL. */ | |
2223 | ||
f8eba3c6 TT |
2224 | static VEC (symbolp) * |
2225 | find_function_symbols (char **argptr, char *p, int is_quote_enclosed, | |
2226 | char **user_function) | |
9ef07c8c TT |
2227 | { |
2228 | char *p1; | |
2229 | char *copy; | |
f8eba3c6 | 2230 | VEC (symbolp) *result = NULL; |
9ef07c8c TT |
2231 | |
2232 | p1 = p; | |
2233 | while (p != *argptr && p[-1] == ' ') | |
2234 | --p; | |
2235 | if ((*p == '"') && is_quote_enclosed) | |
2236 | --p; | |
f8eba3c6 TT |
2237 | copy = (char *) xmalloc (p - *argptr + 1); |
2238 | *user_function = copy; | |
9ef07c8c TT |
2239 | memcpy (copy, *argptr, p - *argptr); |
2240 | /* It may have the ending quote right after the file name. */ | |
2241 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') | |
2242 | || copy[p - *argptr - 1] == '\'') | |
2243 | copy[p - *argptr - 1] = 0; | |
2244 | else | |
2245 | copy[p - *argptr] = 0; | |
2246 | ||
f8eba3c6 TT |
2247 | iterate_over_all_matching_symtabs (copy, VAR_DOMAIN, |
2248 | collect_function_symbols, &result, NULL); | |
9ef07c8c | 2249 | |
f8eba3c6 TT |
2250 | if (VEC_empty (symbolp, result)) |
2251 | VEC_free (symbolp, result); | |
2252 | else | |
2253 | { | |
2254 | /* Discard the file name from the arg. */ | |
2255 | *argptr = skip_spaces (p1 + 1); | |
2256 | } | |
9ef07c8c | 2257 | |
f8eba3c6 | 2258 | return result; |
9ef07c8c TT |
2259 | } |
2260 | ||
84fba31b DC |
2261 | \f |
2262 | ||
f8eba3c6 TT |
2263 | /* A helper for decode_all_digits that handles the 'list_mode' case. */ |
2264 | ||
2265 | static void | |
2266 | decode_digits_list_mode (struct linespec_state *self, | |
2267 | struct symtabs_and_lines *values, | |
2268 | struct symtab_and_line val) | |
2269 | { | |
2270 | int ix; | |
2271 | struct symtab *elt; | |
2272 | ||
2273 | gdb_assert (self->list_mode); | |
2274 | ||
2275 | for (ix = 0; VEC_iterate (symtab_p, self->file_symtabs, ix, elt); ++ix) | |
2276 | { | |
2277 | /* The logic above should ensure this. */ | |
2278 | gdb_assert (elt != NULL); | |
2279 | ||
2280 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2281 | ||
2282 | /* Simplistic search just for the list command. */ | |
2283 | val.symtab = find_line_symtab (elt, val.line, NULL, NULL); | |
2284 | if (val.symtab == NULL) | |
2285 | val.symtab = elt; | |
2286 | val.pspace = SYMTAB_PSPACE (elt); | |
2287 | val.pc = 0; | |
2288 | val.explicit_line = 1; | |
2289 | ||
2290 | add_sal_to_sals (self, values, &val, NULL); | |
2291 | } | |
2292 | } | |
2293 | ||
2294 | /* A helper for decode_all_digits that iterates over the symtabs, | |
2295 | adding lines to the VEC. */ | |
2296 | ||
2297 | static void | |
2298 | decode_digits_ordinary (struct linespec_state *self, | |
2299 | int line, | |
2300 | struct symtabs_and_lines *sals, | |
2301 | struct linetable_entry **best_entry) | |
2302 | { | |
2303 | int ix; | |
2304 | struct symtab *elt; | |
2305 | ||
2306 | for (ix = 0; VEC_iterate (symtab_p, self->file_symtabs, ix, elt); ++ix) | |
2307 | { | |
2308 | int i; | |
2309 | VEC (CORE_ADDR) *pcs; | |
2310 | CORE_ADDR pc; | |
2311 | ||
2312 | /* The logic above should ensure this. */ | |
2313 | gdb_assert (elt != NULL); | |
2314 | ||
2315 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2316 | ||
2317 | pcs = find_pcs_for_symtab_line (elt, line, best_entry); | |
2318 | for (i = 0; VEC_iterate (CORE_ADDR, pcs, i, pc); ++i) | |
2319 | { | |
2320 | struct symtab_and_line sal; | |
2321 | ||
2322 | init_sal (&sal); | |
2323 | sal.pspace = SYMTAB_PSPACE (elt); | |
2324 | sal.symtab = elt; | |
2325 | sal.line = line; | |
2326 | sal.pc = pc; | |
2327 | add_sal_to_sals_basic (sals, &sal); | |
2328 | } | |
2329 | ||
2330 | VEC_free (CORE_ADDR, pcs); | |
2331 | } | |
2332 | } | |
2333 | ||
84fba31b DC |
2334 | /* This decodes a line where the argument is all digits (possibly |
2335 | preceded by a sign). Q should point to the end of those digits; | |
2336 | the other arguments are as usual. */ | |
2337 | ||
2338 | static struct symtabs_and_lines | |
f8eba3c6 TT |
2339 | decode_all_digits (struct linespec_state *self, |
2340 | char **argptr, | |
2341 | char *q) | |
84fba31b DC |
2342 | { |
2343 | struct symtabs_and_lines values; | |
2344 | struct symtab_and_line val; | |
f8eba3c6 TT |
2345 | int use_default = 0; |
2346 | char *saved_arg = *argptr; | |
84fba31b DC |
2347 | |
2348 | enum sign | |
2349 | { | |
2350 | none, plus, minus | |
2351 | } | |
2352 | sign = none; | |
2353 | ||
84fba31b | 2354 | init_sal (&val); |
f8eba3c6 TT |
2355 | values.sals = NULL; |
2356 | values.nelts = 0; | |
6c95b8df | 2357 | |
84fba31b DC |
2358 | /* This is where we need to make sure that we have good defaults. |
2359 | We must guarantee that this section of code is never executed | |
2360 | when we are called with just a function name, since | |
2361 | set_default_source_symtab_and_line uses | |
a04257e6 | 2362 | select_source_symtab that calls us with such an argument. */ |
84fba31b | 2363 | |
f8eba3c6 TT |
2364 | if (VEC_length (symtab_p, self->file_symtabs) == 1 |
2365 | && VEC_index (symtab_p, self->file_symtabs, 0) == NULL) | |
84fba31b | 2366 | { |
f8eba3c6 TT |
2367 | set_current_program_space (self->program_space); |
2368 | ||
a04257e6 | 2369 | /* Make sure we have at least a default source file. */ |
84fba31b | 2370 | set_default_source_symtab_and_line (); |
f8eba3c6 TT |
2371 | initialize_defaults (&self->default_symtab, &self->default_line); |
2372 | VEC_pop (symtab_p, self->file_symtabs); | |
2373 | VEC_free (symtab_p, self->file_symtabs); | |
2374 | self->file_symtabs | |
2375 | = collect_symtabs_from_filename (self->default_symtab->filename); | |
2376 | use_default = 1; | |
84fba31b DC |
2377 | } |
2378 | ||
2379 | if (**argptr == '+') | |
2380 | sign = plus, (*argptr)++; | |
2381 | else if (**argptr == '-') | |
2382 | sign = minus, (*argptr)++; | |
2383 | val.line = atoi (*argptr); | |
2384 | switch (sign) | |
2385 | { | |
2386 | case plus: | |
2387 | if (q == *argptr) | |
2388 | val.line = 5; | |
f8eba3c6 TT |
2389 | if (use_default) |
2390 | val.line = self->default_line + val.line; | |
84fba31b DC |
2391 | break; |
2392 | case minus: | |
2393 | if (q == *argptr) | |
2394 | val.line = 15; | |
f8eba3c6 TT |
2395 | if (use_default) |
2396 | val.line = self->default_line - val.line; | |
84fba31b DC |
2397 | else |
2398 | val.line = 1; | |
2399 | break; | |
2400 | case none: | |
2401 | break; /* No need to adjust val.line. */ | |
2402 | } | |
2403 | ||
f8eba3c6 TT |
2404 | *argptr = skip_spaces (q); |
2405 | ||
2406 | if (self->list_mode) | |
2407 | decode_digits_list_mode (self, &values, val); | |
2408 | else | |
2409 | { | |
2410 | struct linetable_entry *best_entry = NULL; | |
2411 | int *filter; | |
2412 | struct block **blocks; | |
2413 | struct cleanup *cleanup; | |
2414 | struct symtabs_and_lines intermediate_results; | |
2415 | int i, j; | |
2416 | ||
2417 | intermediate_results.sals = NULL; | |
2418 | intermediate_results.nelts = 0; | |
2419 | ||
2420 | decode_digits_ordinary (self, val.line, &intermediate_results, | |
2421 | &best_entry); | |
2422 | if (intermediate_results.nelts == 0 && best_entry != NULL) | |
2423 | decode_digits_ordinary (self, best_entry->line, &intermediate_results, | |
2424 | &best_entry); | |
2425 | ||
2426 | cleanup = make_cleanup (xfree, intermediate_results.sals); | |
2427 | ||
2428 | /* For optimized code, compiler can scatter one source line | |
2429 | accross disjoint ranges of PC values, even when no duplicate | |
2430 | functions or inline functions are involved. For example, | |
2431 | 'for (;;)' inside non-template non-inline non-ctor-or-dtor | |
2432 | function can result in two PC ranges. In this case, we don't | |
2433 | want to set breakpoint on first PC of each range. To filter | |
2434 | such cases, we use containing blocks -- for each PC found | |
2435 | above we see if there are other PCs that are in the same | |
2436 | block. If yes, the other PCs are filtered out. */ | |
2437 | ||
2438 | filter = xmalloc (intermediate_results.nelts * sizeof (int)); | |
2439 | make_cleanup (xfree, filter); | |
2440 | blocks = xmalloc (intermediate_results.nelts * sizeof (struct block *)); | |
2441 | make_cleanup (xfree, blocks); | |
2442 | ||
2443 | for (i = 0; i < intermediate_results.nelts; ++i) | |
2444 | { | |
2445 | set_current_program_space (intermediate_results.sals[i].pspace); | |
2446 | ||
2447 | filter[i] = 1; | |
2448 | blocks[i] = block_for_pc_sect (intermediate_results.sals[i].pc, | |
2449 | intermediate_results.sals[i].section); | |
2450 | } | |
2451 | ||
2452 | for (i = 0; i < intermediate_results.nelts; ++i) | |
2453 | { | |
2454 | if (blocks[i] != NULL) | |
2455 | for (j = i + 1; j < intermediate_results.nelts; ++j) | |
2456 | { | |
2457 | if (blocks[j] == blocks[i]) | |
2458 | { | |
2459 | filter[j] = 0; | |
2460 | break; | |
2461 | } | |
2462 | } | |
2463 | } | |
2464 | ||
2465 | for (i = 0; i < intermediate_results.nelts; ++i) | |
2466 | if (filter[i]) | |
2467 | { | |
2468 | struct symbol *sym = (blocks[i] | |
2469 | ? block_containing_function (blocks[i]) | |
2470 | : NULL); | |
2471 | ||
2472 | if (self->funfirstline) | |
2473 | skip_prologue_sal (&intermediate_results.sals[i]); | |
2474 | /* Make sure the line matches the request, not what was | |
2475 | found. */ | |
2476 | intermediate_results.sals[i].line = val.line; | |
2477 | add_sal_to_sals (self, &values, &intermediate_results.sals[i], | |
2478 | sym ? SYMBOL_NATURAL_NAME (sym) : NULL); | |
2479 | } | |
2480 | ||
2481 | do_cleanups (cleanup); | |
2482 | } | |
2483 | ||
2484 | if (values.nelts == 0) | |
2485 | { | |
2486 | if (self->user_filename) | |
2487 | throw_error (NOT_FOUND_ERROR, _("No line %d in file \"%s\"."), | |
2488 | val.line, self->user_filename); | |
2489 | else | |
2490 | throw_error (NOT_FOUND_ERROR, _("No line %d in the current file."), | |
2491 | val.line); | |
2492 | } | |
2493 | ||
2494 | if (self->canonical) | |
2495 | { | |
2496 | char *copy = savestring (saved_arg, q - saved_arg); | |
2497 | ||
2498 | self->canonical->pre_expanded = 1; | |
2499 | gdb_assert (self->user_filename || use_default); | |
2500 | self->canonical->addr_string | |
2501 | = xstrprintf ("%s:%s", (self->user_filename | |
2502 | ? self->user_filename | |
2503 | : self->default_symtab->filename), | |
2504 | copy); | |
2505 | xfree (copy); | |
2506 | } | |
2507 | ||
84fba31b DC |
2508 | return values; |
2509 | } | |
f3c39e76 | 2510 | |
614b3b14 DC |
2511 | \f |
2512 | ||
14e91ac5 DC |
2513 | /* Decode a linespec starting with a dollar sign. */ |
2514 | ||
2515 | static struct symtabs_and_lines | |
f8eba3c6 | 2516 | decode_dollar (struct linespec_state *self, char *copy) |
14e91ac5 | 2517 | { |
4fa62494 | 2518 | LONGEST valx; |
14e91ac5 | 2519 | int index = 0; |
14e91ac5 DC |
2520 | struct symtabs_and_lines values; |
2521 | struct symtab_and_line val; | |
2522 | char *p; | |
2523 | struct symbol *sym; | |
14e91ac5 | 2524 | struct minimal_symbol *msymbol; |
f8eba3c6 TT |
2525 | int ix; |
2526 | struct symtab *elt; | |
14e91ac5 DC |
2527 | |
2528 | p = (copy[1] == '$') ? copy + 2 : copy + 1; | |
2529 | while (*p >= '0' && *p <= '9') | |
2530 | p++; | |
a04257e6 | 2531 | if (!*p) /* Reached end of token without hitting non-digit. */ |
14e91ac5 | 2532 | { |
a04257e6 | 2533 | /* We have a value history reference. */ |
4fa62494 | 2534 | struct value *val_history; |
e0881a8e | 2535 | |
14e91ac5 | 2536 | sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index); |
4fa62494 UW |
2537 | val_history = access_value_history ((copy[1] == '$') ? -index : index); |
2538 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
3e43a32a MS |
2539 | error (_("History values used in line " |
2540 | "specs must have integer values.")); | |
4fa62494 | 2541 | valx = value_as_long (val_history); |
14e91ac5 DC |
2542 | } |
2543 | else | |
2544 | { | |
2545 | /* Not all digits -- may be user variable/function or a | |
a04257e6 | 2546 | convenience variable. */ |
14e91ac5 | 2547 | |
f8eba3c6 TT |
2548 | volatile struct gdb_exception exc; |
2549 | ||
31aba06f DE |
2550 | /* Avoid "may be used uninitialized" warning. */ |
2551 | values.sals = NULL; | |
2552 | values.nelts = 0; | |
2553 | ||
f8eba3c6 TT |
2554 | TRY_CATCH (exc, RETURN_MASK_ERROR) |
2555 | { | |
2556 | values = decode_variable (self, copy); | |
2557 | } | |
2558 | ||
2559 | if (exc.reason == 0) | |
2560 | return values; | |
14e91ac5 | 2561 | |
f8eba3c6 TT |
2562 | if (exc.error != NOT_FOUND_ERROR) |
2563 | throw_exception (exc); | |
14e91ac5 | 2564 | |
a04257e6 | 2565 | /* Not a user variable or function -- must be convenience variable. */ |
4fa62494 | 2566 | if (!get_internalvar_integer (lookup_internalvar (copy + 1), &valx)) |
3e43a32a MS |
2567 | error (_("Convenience variables used in line " |
2568 | "specs must have integer values.")); | |
14e91ac5 DC |
2569 | } |
2570 | ||
2571 | init_sal (&val); | |
2572 | ||
f8eba3c6 TT |
2573 | values.sals = NULL; |
2574 | values.nelts = 0; | |
14e91ac5 | 2575 | |
f8eba3c6 TT |
2576 | for (ix = 0; VEC_iterate (symtab_p, self->file_symtabs, ix, elt); ++ix) |
2577 | { | |
2578 | if (elt == NULL) | |
2579 | { | |
2580 | elt = self->default_symtab; | |
2581 | set_current_program_space (self->program_space); | |
2582 | } | |
2583 | else | |
2584 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2585 | ||
2586 | /* Either history value or convenience value from above, in valx. */ | |
2587 | val.symtab = elt; | |
2588 | val.line = valx; | |
2589 | val.pc = 0; | |
2590 | val.pspace = elt ? SYMTAB_PSPACE (elt) : current_program_space; | |
2591 | ||
2592 | add_sal_to_sals (self, &values, &val, NULL); | |
2593 | } | |
14e91ac5 | 2594 | |
f8eba3c6 TT |
2595 | if (self->canonical) |
2596 | { | |
2597 | self->canonical->pre_expanded = 1; | |
2598 | if (self->user_filename) | |
2599 | self->canonical->addr_string = xstrprintf ("%s:%s", | |
2600 | self->user_filename, copy); | |
2601 | else | |
2602 | self->canonical->addr_string = xstrdup (copy); | |
2603 | } | |
14e91ac5 DC |
2604 | |
2605 | return values; | |
2606 | } | |
2607 | ||
bca02a8a DC |
2608 | \f |
2609 | ||
0f5238ed TT |
2610 | /* A helper for decode_line_1 that tries to find a label. The label |
2611 | is searched for in the current block. | |
f8eba3c6 | 2612 | FUNCTION_SYMBOLS is a list of the enclosing functions; or NULL if none |
9ef07c8c | 2613 | specified. |
0f5238ed TT |
2614 | COPY is the name of the label to find. |
2615 | CANONICAL is the same as the "canonical" argument to decode_line_1. | |
2616 | RESULT is a pointer to a symtabs_and_lines structure which will be | |
2617 | filled in on success. | |
2618 | This function returns 1 if a label was found, 0 otherwise. */ | |
2619 | ||
2620 | static int | |
f8eba3c6 TT |
2621 | decode_label (struct linespec_state *self, |
2622 | VEC (symbolp) *function_symbols, char *copy, | |
7efd8fc2 | 2623 | struct symtabs_and_lines *result) |
0f5238ed | 2624 | { |
f8eba3c6 TT |
2625 | struct symbol *fn_sym; |
2626 | int ix; | |
9ef07c8c | 2627 | |
f8eba3c6 | 2628 | if (function_symbols == NULL) |
9ef07c8c | 2629 | { |
f8eba3c6 TT |
2630 | struct block *block; |
2631 | struct symbol *sym; | |
2632 | struct symtab_and_line sal; | |
2633 | struct symtabs_and_lines values; | |
2634 | ||
2635 | values.nelts = 0; | |
2636 | values.sals = NULL; | |
2637 | ||
2638 | set_current_program_space (self->program_space); | |
2639 | block = get_search_block (NULL); | |
2640 | ||
9ef07c8c TT |
2641 | for (; |
2642 | block && !BLOCK_FUNCTION (block); | |
2643 | block = BLOCK_SUPERBLOCK (block)) | |
2644 | ; | |
2645 | if (!block) | |
2646 | return 0; | |
f8eba3c6 TT |
2647 | fn_sym = BLOCK_FUNCTION (block); |
2648 | ||
2649 | sym = lookup_symbol (copy, block, LABEL_DOMAIN, 0); | |
2650 | ||
2651 | if (sym == NULL) | |
2652 | return 0; | |
2653 | ||
2654 | symbol_to_sal (&sal, self->funfirstline, sym); | |
2655 | add_sal_to_sals (self, &values, &sal, | |
2656 | SYMBOL_NATURAL_NAME (fn_sym)); | |
2657 | ||
2658 | if (self->canonical) | |
2659 | { | |
2660 | self->canonical->special_display = 1; | |
2661 | self->canonical->addr_string | |
2662 | = xstrprintf ("%s:%s", SYMBOL_NATURAL_NAME (fn_sym), | |
2663 | copy); | |
2664 | } | |
2665 | ||
2666 | *result = values; | |
2667 | ||
2668 | return 1; | |
2669 | } | |
2670 | ||
2671 | result->sals = NULL; | |
2672 | result->nelts = 0; | |
2673 | ||
2674 | for (ix = 0; VEC_iterate (symbolp, function_symbols, ix, fn_sym); ++ix) | |
2675 | { | |
2676 | struct block *block; | |
2677 | struct symbol *sym; | |
2678 | ||
2679 | set_current_program_space (SYMTAB_PSPACE (SYMBOL_SYMTAB (fn_sym))); | |
2680 | block = SYMBOL_BLOCK_VALUE (fn_sym); | |
2681 | sym = lookup_symbol (copy, block, LABEL_DOMAIN, 0); | |
2682 | ||
2683 | if (sym != NULL) | |
2684 | { | |
2685 | struct symtab_and_line sal; | |
2686 | char *symname; | |
2687 | ||
2688 | symbol_to_sal (&sal, self->funfirstline, sym); | |
2689 | symname = xstrprintf ("%s:%s", | |
2690 | SYMBOL_NATURAL_NAME (fn_sym), | |
2691 | SYMBOL_NATURAL_NAME (sym)); | |
2692 | add_sal_to_sals (self, result, &sal, symname); | |
2693 | xfree (symname); | |
2694 | } | |
2695 | } | |
2696 | ||
2697 | if (self->canonical && result->nelts > 0) | |
2698 | { | |
2699 | self->canonical->pre_expanded = 1; | |
2700 | self->canonical->special_display = 1; | |
2701 | ||
2702 | gdb_assert (self->user_function); | |
2703 | self->canonical->addr_string | |
2704 | = xstrprintf ("%s:%s", self->user_function, copy); | |
2705 | } | |
2706 | ||
2707 | return result->nelts > 0; | |
2708 | } | |
2709 | ||
2710 | /* A callback used to possibly add a symbol to the results. */ | |
2711 | ||
2712 | static int | |
2713 | collect_symbols (struct symbol *sym, void *data) | |
2714 | { | |
2715 | struct collect_info *info = data; | |
2716 | struct symtab_and_line sal; | |
2717 | ||
07fea4b4 TT |
2718 | if (symbol_to_sal (&sal, info->state->funfirstline, sym) |
2719 | && maybe_add_address (info->state->addr_set, | |
2720 | SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)), | |
2721 | sal.pc)) | |
f8eba3c6 TT |
2722 | add_sal_to_sals (info->state, &info->result, &sal, |
2723 | SYMBOL_NATURAL_NAME (sym)); | |
2724 | ||
8e704927 | 2725 | return 1; /* Continue iterating. */ |
f8eba3c6 TT |
2726 | } |
2727 | ||
2728 | /* We've found a minimal symbol MSYMBOL to associate with our | |
2729 | linespec; add it to the result symtabs_and_lines. */ | |
2730 | ||
2731 | static void | |
2732 | minsym_found (struct linespec_state *self, struct objfile *objfile, | |
2733 | struct minimal_symbol *msymbol, | |
2734 | struct symtabs_and_lines *result) | |
2735 | { | |
2736 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
2737 | CORE_ADDR pc; | |
2738 | struct symtab_and_line sal; | |
2739 | ||
2740 | sal = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol), | |
2741 | (struct obj_section *) 0, 0); | |
2742 | sal.section = SYMBOL_OBJ_SECTION (msymbol); | |
2743 | ||
2744 | /* The minimal symbol might point to a function descriptor; | |
2745 | resolve it to the actual code address instead. */ | |
2746 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, ¤t_target); | |
2747 | if (pc != sal.pc) | |
2748 | sal = find_pc_sect_line (pc, NULL, 0); | |
2749 | ||
2750 | if (self->funfirstline) | |
2751 | skip_prologue_sal (&sal); | |
2752 | ||
07fea4b4 TT |
2753 | if (maybe_add_address (self->addr_set, objfile->pspace, sal.pc)) |
2754 | add_sal_to_sals (self, result, &sal, SYMBOL_NATURAL_NAME (msymbol)); | |
f8eba3c6 TT |
2755 | } |
2756 | ||
39b856a4 TT |
2757 | /* A helper struct which just holds a minimal symbol and the object |
2758 | file from which it came. */ | |
f8eba3c6 | 2759 | |
39b856a4 | 2760 | typedef struct minsym_and_objfile |
f8eba3c6 | 2761 | { |
39b856a4 TT |
2762 | struct minimal_symbol *minsym; |
2763 | struct objfile *objfile; | |
2764 | } minsym_and_objfile_d; | |
f8eba3c6 | 2765 | |
39b856a4 TT |
2766 | DEF_VEC_O (minsym_and_objfile_d); |
2767 | ||
2768 | /* A helper struct to pass some data through | |
2769 | iterate_over_minimal_symbols. */ | |
2770 | ||
2771 | struct collect_minsyms | |
2772 | { | |
2773 | /* The objfile we're examining. */ | |
2774 | struct objfile *objfile; | |
2775 | ||
2776 | /* The funfirstline setting from the initial call. */ | |
2777 | int funfirstline; | |
2778 | ||
095bcf5e JB |
2779 | /* The list_mode setting from the initial call. */ |
2780 | int list_mode; | |
2781 | ||
39b856a4 TT |
2782 | /* The resulting symbols. */ |
2783 | VEC (minsym_and_objfile_d) *msyms; | |
2784 | }; | |
2785 | ||
2786 | /* A helper function to classify a minimal_symbol_type according to | |
2787 | priority. */ | |
2788 | ||
2789 | static int | |
2790 | classify_mtype (enum minimal_symbol_type t) | |
2791 | { | |
2792 | switch (t) | |
f8eba3c6 | 2793 | { |
39b856a4 TT |
2794 | case mst_file_text: |
2795 | case mst_file_data: | |
2796 | case mst_file_bss: | |
2797 | /* Intermediate priority. */ | |
2798 | return 1; | |
2799 | ||
2800 | case mst_solib_trampoline: | |
2801 | /* Lowest priority. */ | |
2802 | return 2; | |
2803 | ||
2804 | default: | |
2805 | /* Highest priority. */ | |
2806 | return 0; | |
f8eba3c6 | 2807 | } |
39b856a4 TT |
2808 | } |
2809 | ||
2810 | /* Callback for qsort that sorts symbols by priority. */ | |
2811 | ||
2812 | static int | |
2813 | compare_msyms (const void *a, const void *b) | |
2814 | { | |
2815 | const minsym_and_objfile_d *moa = a; | |
2816 | const minsym_and_objfile_d *mob = b; | |
2817 | enum minimal_symbol_type ta = MSYMBOL_TYPE (moa->minsym); | |
2818 | enum minimal_symbol_type tb = MSYMBOL_TYPE (mob->minsym); | |
2819 | ||
2820 | return classify_mtype (ta) - classify_mtype (tb); | |
2821 | } | |
2822 | ||
2823 | /* Callback for iterate_over_minimal_symbols that adds the symbol to | |
2824 | the result. */ | |
2825 | ||
2826 | static void | |
2827 | add_minsym (struct minimal_symbol *minsym, void *d) | |
2828 | { | |
2829 | struct collect_minsyms *info = d; | |
2830 | minsym_and_objfile_d mo; | |
2831 | ||
095bcf5e JB |
2832 | /* Exclude data symbols when looking for breakpoint locations. */ |
2833 | if (!info->list_mode) | |
2834 | switch (minsym->type) | |
2835 | { | |
2836 | case mst_slot_got_plt: | |
2837 | case mst_data: | |
2838 | case mst_bss: | |
2839 | case mst_abs: | |
2840 | case mst_file_data: | |
2841 | case mst_file_bss: | |
1a2da5ee JB |
2842 | { |
2843 | /* Make sure this minsym is not a function descriptor | |
2844 | before we decide to discard it. */ | |
2845 | struct gdbarch *gdbarch = info->objfile->gdbarch; | |
2846 | CORE_ADDR addr = gdbarch_convert_from_func_ptr_addr | |
2847 | (gdbarch, SYMBOL_VALUE_ADDRESS (minsym), | |
2848 | ¤t_target); | |
2849 | ||
2850 | if (addr == SYMBOL_VALUE_ADDRESS (minsym)) | |
2851 | return; | |
2852 | } | |
095bcf5e JB |
2853 | } |
2854 | ||
39b856a4 TT |
2855 | mo.minsym = minsym; |
2856 | mo.objfile = info->objfile; | |
2857 | VEC_safe_push (minsym_and_objfile_d, info->msyms, &mo); | |
f8eba3c6 TT |
2858 | } |
2859 | ||
2860 | /* Search minimal symbols in all objfiles for NAME. If SEARCH_PSPACE | |
2861 | is not NULL, the search is restricted to just that program | |
2862 | space. */ | |
2863 | ||
2864 | static void | |
2865 | search_minsyms_for_name (struct collect_info *info, const char *name, | |
2866 | struct program_space *search_pspace) | |
2867 | { | |
2868 | struct objfile *objfile; | |
2869 | struct program_space *pspace; | |
2870 | ||
2871 | ALL_PSPACES (pspace) | |
2872 | { | |
39b856a4 TT |
2873 | struct collect_minsyms local; |
2874 | struct cleanup *cleanup; | |
2875 | ||
f8eba3c6 TT |
2876 | if (search_pspace != NULL && search_pspace != pspace) |
2877 | continue; | |
2878 | if (pspace->executing_startup) | |
2879 | continue; | |
2880 | ||
2881 | set_current_program_space (pspace); | |
2882 | ||
39b856a4 TT |
2883 | memset (&local, 0, sizeof (local)); |
2884 | local.funfirstline = info->state->funfirstline; | |
095bcf5e | 2885 | local.list_mode = info->state->list_mode; |
39b856a4 TT |
2886 | |
2887 | cleanup = make_cleanup (VEC_cleanup (minsym_and_objfile_d), | |
2888 | &local.msyms); | |
2889 | ||
f8eba3c6 TT |
2890 | ALL_OBJFILES (objfile) |
2891 | { | |
39b856a4 TT |
2892 | local.objfile = objfile; |
2893 | iterate_over_minimal_symbols (objfile, name, add_minsym, &local); | |
9ef07c8c | 2894 | } |
39b856a4 TT |
2895 | |
2896 | if (!VEC_empty (minsym_and_objfile_d, local.msyms)) | |
2897 | { | |
2898 | int classification; | |
2899 | int ix; | |
2900 | minsym_and_objfile_d *item; | |
2901 | ||
2902 | qsort (VEC_address (minsym_and_objfile_d, local.msyms), | |
2903 | VEC_length (minsym_and_objfile_d, local.msyms), | |
2904 | sizeof (minsym_and_objfile_d), | |
2905 | compare_msyms); | |
2906 | ||
2907 | /* Now the minsyms are in classification order. So, we walk | |
2908 | over them and process just the minsyms with the same | |
2909 | classification as the very first minsym in the list. */ | |
2910 | item = VEC_index (minsym_and_objfile_d, local.msyms, 0); | |
2911 | classification = classify_mtype (MSYMBOL_TYPE (item->minsym)); | |
2912 | ||
2913 | for (ix = 0; | |
2914 | VEC_iterate (minsym_and_objfile_d, local.msyms, ix, item); | |
2915 | ++ix) | |
2916 | { | |
2917 | if (classify_mtype (MSYMBOL_TYPE (item->minsym)) != classification) | |
2918 | break; | |
2919 | ||
07fea4b4 TT |
2920 | minsym_found (info->state, item->objfile, item->minsym, |
2921 | &info->result); | |
39b856a4 TT |
2922 | } |
2923 | } | |
2924 | ||
2925 | do_cleanups (cleanup); | |
f8eba3c6 TT |
2926 | } |
2927 | } | |
2928 | ||
2929 | /* A helper function to add all symbols matching NAME to INFO. If | |
2930 | PSPACE is not NULL, the search is restricted to just that program | |
2931 | space. */ | |
0f5238ed | 2932 | |
f8eba3c6 TT |
2933 | static void |
2934 | add_matching_symbols_to_info (const char *name, | |
2935 | struct collect_info *info, | |
2936 | struct program_space *pspace) | |
2937 | { | |
2938 | int ix; | |
2939 | struct symtab *elt; | |
0f5238ed | 2940 | |
f8eba3c6 TT |
2941 | for (ix = 0; VEC_iterate (symtab_p, info->state->file_symtabs, ix, elt); ++ix) |
2942 | { | |
2943 | struct symbol *sym; | |
0f5238ed | 2944 | |
f8eba3c6 TT |
2945 | if (elt == NULL) |
2946 | { | |
2947 | iterate_over_all_matching_symtabs (name, VAR_DOMAIN, | |
2948 | collect_symbols, info, | |
2949 | pspace); | |
2950 | search_minsyms_for_name (info, name, pspace); | |
2951 | } | |
2952 | else if (pspace == NULL || pspace == SYMTAB_PSPACE (elt)) | |
2953 | { | |
2954 | /* Program spaces that are executing startup should have | |
2955 | been filtered out earlier. */ | |
2956 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
2957 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2958 | LA_ITERATE_OVER_SYMBOLS (get_search_block (elt), name, | |
2959 | VAR_DOMAIN, collect_symbols, | |
2960 | info); | |
2961 | } | |
2962 | } | |
0f5238ed TT |
2963 | } |
2964 | ||
88d262ca | 2965 | /* Decode a linespec that's a variable. If FILE_SYMTAB is non-NULL, |
58438ac1 | 2966 | look in that symtab's static variables first. */ |
bca02a8a DC |
2967 | |
2968 | static struct symtabs_and_lines | |
f8eba3c6 | 2969 | decode_variable (struct linespec_state *self, char *copy) |
bca02a8a | 2970 | { |
f8eba3c6 TT |
2971 | struct collect_info info; |
2972 | const char *lookup_name; | |
2973 | char *canon; | |
3a93a0c2 | 2974 | struct cleanup *cleanup; |
bca02a8a | 2975 | |
f8eba3c6 TT |
2976 | info.state = self; |
2977 | info.result.sals = NULL; | |
2978 | info.result.nelts = 0; | |
f8eba3c6 TT |
2979 | |
2980 | cleanup = demangle_for_lookup (copy, current_language->la_language, | |
2981 | &lookup_name); | |
2982 | if (current_language->la_language == language_ada) | |
3a93a0c2 | 2983 | { |
f8eba3c6 TT |
2984 | /* In Ada, the symbol lookups are performed using the encoded |
2985 | name rather than the demangled name. */ | |
2986 | lookup_name = ada_name_for_lookup (copy); | |
2987 | make_cleanup (xfree, (void *) lookup_name); | |
3a93a0c2 KS |
2988 | } |
2989 | ||
f8eba3c6 TT |
2990 | canon = cp_canonicalize_string_no_typedefs (lookup_name); |
2991 | if (canon != NULL) | |
3a93a0c2 | 2992 | { |
f8eba3c6 TT |
2993 | make_cleanup (xfree, canon); |
2994 | lookup_name = canon; | |
3a93a0c2 | 2995 | } |
bca02a8a | 2996 | |
f8eba3c6 | 2997 | add_matching_symbols_to_info (lookup_name, &info, NULL); |
bca02a8a | 2998 | |
f8eba3c6 TT |
2999 | if (info.result.nelts > 0) |
3000 | { | |
3001 | if (self->canonical) | |
3002 | { | |
3003 | self->canonical->pre_expanded = 1; | |
3004 | if (self->user_filename) | |
3005 | self->canonical->addr_string | |
3006 | = xstrprintf ("%s:%s", self->user_filename, copy); | |
3007 | else | |
3008 | self->canonical->addr_string = xstrdup (copy); | |
3009 | } | |
3010 | return info.result; | |
3011 | } | |
bca02a8a | 3012 | |
b96e2927 PA |
3013 | if (!have_full_symbols () |
3014 | && !have_partial_symbols () | |
3015 | && !have_minimal_symbols ()) | |
3016 | throw_error (NOT_FOUND_ERROR, | |
3017 | _("No symbol table is loaded. Use the \"file\" command.")); | |
f8eba3c6 TT |
3018 | if (self->user_filename) |
3019 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined in \"%s\"."), | |
3020 | copy, self->user_filename); | |
3021 | else | |
3022 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined."), copy); | |
bca02a8a DC |
3023 | } |
3024 | ||
3025 | ||
14e91ac5 DC |
3026 | \f |
3027 | ||
413dad4d DC |
3028 | /* Now come some functions that are called from multiple places within |
3029 | decode_line_1. */ | |
3030 | ||
f8eba3c6 TT |
3031 | static int |
3032 | symbol_to_sal (struct symtab_and_line *result, | |
3033 | int funfirstline, struct symbol *sym) | |
413dad4d | 3034 | { |
413dad4d | 3035 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
50641945 | 3036 | { |
f8eba3c6 TT |
3037 | *result = find_function_start_sal (sym, funfirstline); |
3038 | return 1; | |
50641945 | 3039 | } |
413dad4d DC |
3040 | else |
3041 | { | |
62853458 | 3042 | if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0) |
413dad4d | 3043 | { |
f8eba3c6 TT |
3044 | init_sal (result); |
3045 | result->symtab = SYMBOL_SYMTAB (sym); | |
3046 | result->line = SYMBOL_LINE (sym); | |
3047 | result->pc = SYMBOL_VALUE_ADDRESS (sym); | |
3048 | result->pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
3049 | result->explicit_pc = 1; | |
3050 | return 1; | |
413dad4d | 3051 | } |
62853458 | 3052 | else if (funfirstline) |
dcf9f4ab | 3053 | { |
f8eba3c6 | 3054 | /* Nothing. */ |
dcf9f4ab | 3055 | } |
62853458 TT |
3056 | else if (SYMBOL_LINE (sym) != 0) |
3057 | { | |
3058 | /* We know its line number. */ | |
f8eba3c6 TT |
3059 | init_sal (result); |
3060 | result->symtab = SYMBOL_SYMTAB (sym); | |
3061 | result->line = SYMBOL_LINE (sym); | |
3062 | result->pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
3063 | return 1; | |
62853458 | 3064 | } |
413dad4d | 3065 | } |
f8eba3c6 TT |
3066 | |
3067 | return 0; | |
413dad4d | 3068 | } |
50641945 | 3069 | |
f8eba3c6 | 3070 | /* See the comment in linespec.h. */ |
50641945 | 3071 | |
f8eba3c6 TT |
3072 | void |
3073 | init_linespec_result (struct linespec_result *lr) | |
413dad4d | 3074 | { |
f8eba3c6 TT |
3075 | memset (lr, 0, sizeof (*lr)); |
3076 | } | |
413dad4d | 3077 | |
f8eba3c6 | 3078 | /* See the comment in linespec.h. */ |
bccdca4a | 3079 | |
f8eba3c6 TT |
3080 | void |
3081 | destroy_linespec_result (struct linespec_result *ls) | |
3082 | { | |
3083 | int i; | |
3084 | struct linespec_sals *lsal; | |
bccdca4a | 3085 | |
f8eba3c6 TT |
3086 | xfree (ls->addr_string); |
3087 | for (i = 0; VEC_iterate (linespec_sals, ls->sals, i, lsal); ++i) | |
3088 | { | |
3089 | xfree (lsal->canonical); | |
3090 | xfree (lsal->sals.sals); | |
3091 | } | |
3092 | VEC_free (linespec_sals, ls->sals); | |
3093 | } | |
e48883f7 | 3094 | |
f8eba3c6 TT |
3095 | /* Cleanup function for a linespec_result. */ |
3096 | ||
3097 | static void | |
3098 | cleanup_linespec_result (void *a) | |
3099 | { | |
3100 | destroy_linespec_result (a); | |
50641945 | 3101 | } |
7efd8fc2 | 3102 | |
f8eba3c6 TT |
3103 | /* See the comment in linespec.h. */ |
3104 | ||
3105 | struct cleanup * | |
3106 | make_cleanup_destroy_linespec_result (struct linespec_result *ls) | |
7efd8fc2 | 3107 | { |
f8eba3c6 | 3108 | return make_cleanup (cleanup_linespec_result, ls); |
7efd8fc2 | 3109 | } |