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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; | |
0d5cff50 | 438 | const char *class_name = type_name_no_tag (t); |
c00f8484 | 439 | |
50641945 FN |
440 | /* Ignore this class if it doesn't have a name. This is ugly, but |
441 | unless we figure out how to get the physname without the name of | |
442 | the class, then the loop can't do any good. */ | |
f8eba3c6 | 443 | if (class_name) |
50641945 FN |
444 | { |
445 | int method_counter; | |
5c717440 | 446 | int name_len = strlen (name); |
50641945 | 447 | |
8bd1f2c6 | 448 | CHECK_TYPEDEF (t); |
50641945 FN |
449 | |
450 | /* Loop over each method name. At this level, all overloads of a name | |
451 | are counted as a single name. There is an inner loop which loops over | |
452 | each overload. */ | |
453 | ||
454 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
455 | method_counter >= 0; | |
456 | --method_counter) | |
457 | { | |
0d5cff50 | 458 | const char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
50641945 FN |
459 | char dem_opname[64]; |
460 | ||
461 | if (strncmp (method_name, "__", 2) == 0 || | |
462 | strncmp (method_name, "op", 2) == 0 || | |
463 | strncmp (method_name, "type", 4) == 0) | |
464 | { | |
465 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
466 | method_name = dem_opname; | |
467 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
468 | method_name = dem_opname; | |
469 | } | |
470 | ||
f8eba3c6 TT |
471 | if (strcmp_iw (method_name, name) == 0) |
472 | { | |
473 | int field_counter; | |
aee8d8ba | 474 | |
f8eba3c6 TT |
475 | for (field_counter = (TYPE_FN_FIELDLIST_LENGTH (t, method_counter) |
476 | - 1); | |
477 | field_counter >= 0; | |
478 | --field_counter) | |
479 | { | |
480 | struct fn_field *f; | |
481 | const char *phys_name; | |
482 | ||
483 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
484 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
485 | continue; | |
486 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
487 | VEC_safe_push (const_char_ptr, *result_names, phys_name); | |
488 | } | |
489 | } | |
aee8d8ba DC |
490 | } |
491 | } | |
492 | ||
f8eba3c6 TT |
493 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) |
494 | VEC_safe_push (typep, *superclasses, TYPE_BASECLASS (t, ibase)); | |
50641945 FN |
495 | } |
496 | ||
50641945 FN |
497 | /* Find an instance of the character C in the string S that is outside |
498 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
499 | strings. Also, ignore the char within a template name, like a ',' |
500 | within foo<int, int>. */ | |
501 | ||
50641945 FN |
502 | static char * |
503 | find_toplevel_char (char *s, char c) | |
504 | { | |
505 | int quoted = 0; /* zero if we're not in quotes; | |
506 | '"' if we're in a double-quoted string; | |
507 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 508 | int depth = 0; /* Number of unclosed parens we've seen. */ |
50641945 FN |
509 | char *scan; |
510 | ||
511 | for (scan = s; *scan; scan++) | |
512 | { | |
513 | if (quoted) | |
514 | { | |
515 | if (*scan == quoted) | |
516 | quoted = 0; | |
517 | else if (*scan == '\\' && *(scan + 1)) | |
518 | scan++; | |
519 | } | |
520 | else if (*scan == c && ! quoted && depth == 0) | |
521 | return scan; | |
522 | else if (*scan == '"' || *scan == '\'') | |
523 | quoted = *scan; | |
8120c9d5 | 524 | else if (*scan == '(' || *scan == '<') |
50641945 | 525 | depth++; |
8120c9d5 | 526 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
527 | depth--; |
528 | } | |
529 | ||
530 | return 0; | |
531 | } | |
532 | ||
889f28e2 | 533 | /* Determines if the gives string corresponds to an Objective-C method |
1777feb0 | 534 | representation, such as -[Foo bar:] or +[Foo bar]. Objective-C symbols |
889f28e2 AF |
535 | are allowed to have spaces and parentheses in them. */ |
536 | ||
537 | static int | |
538 | is_objc_method_format (const char *s) | |
539 | { | |
540 | if (s == NULL || *s == '\0') | |
541 | return 0; | |
542 | /* Handle arguments with the format FILENAME:SYMBOL. */ | |
543 | if ((s[0] == ':') && (strchr ("+-", s[1]) != NULL) | |
544 | && (s[2] == '[') && strchr(s, ']')) | |
545 | return 1; | |
546 | /* Handle arguments that are just SYMBOL. */ | |
547 | else if ((strchr ("+-", s[0]) != NULL) && (s[1] == '[') && strchr(s, ']')) | |
548 | return 1; | |
549 | return 0; | |
550 | } | |
551 | ||
f8eba3c6 TT |
552 | /* Given FILTERS, a list of canonical names, filter the sals in RESULT |
553 | and store the result in SELF->CANONICAL. */ | |
50641945 | 554 | |
f8eba3c6 TT |
555 | static void |
556 | filter_results (struct linespec_state *self, | |
557 | struct symtabs_and_lines *result, | |
558 | VEC (const_char_ptr) *filters) | |
559 | { | |
560 | int i; | |
561 | const char *name; | |
562 | ||
563 | for (i = 0; VEC_iterate (const_char_ptr, filters, i, name); ++i) | |
564 | { | |
565 | struct linespec_sals lsal; | |
566 | int j; | |
567 | ||
568 | memset (&lsal, 0, sizeof (lsal)); | |
569 | ||
570 | for (j = 0; j < result->nelts; ++j) | |
571 | { | |
572 | if (strcmp (name, self->canonical_names[j]) == 0) | |
573 | add_sal_to_sals_basic (&lsal.sals, &result->sals[j]); | |
574 | } | |
575 | ||
576 | if (lsal.sals.nelts > 0) | |
577 | { | |
578 | lsal.canonical = xstrdup (name); | |
579 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
580 | } | |
581 | } | |
582 | ||
583 | self->canonical->pre_expanded = 0; | |
584 | } | |
585 | ||
586 | /* Store RESULT into SELF->CANONICAL. */ | |
587 | ||
588 | static void | |
589 | convert_results_to_lsals (struct linespec_state *self, | |
590 | struct symtabs_and_lines *result) | |
50641945 | 591 | { |
f8eba3c6 TT |
592 | struct linespec_sals lsal; |
593 | ||
594 | lsal.canonical = NULL; | |
595 | lsal.sals = *result; | |
596 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
597 | } | |
598 | ||
599 | /* Handle multiple results in RESULT depending on SELECT_MODE. This | |
600 | will either return normally, throw an exception on multiple | |
601 | results, or present a menu to the user. On return, the SALS vector | |
602 | in SELF->CANONICAL is set up properly. */ | |
603 | ||
604 | static void | |
605 | decode_line_2 (struct linespec_state *self, | |
606 | struct symtabs_and_lines *result, | |
607 | const char *select_mode) | |
608 | { | |
609 | const char *iter; | |
610 | char *args, *prompt; | |
50641945 | 611 | int i; |
50641945 | 612 | struct cleanup *old_chain; |
f8eba3c6 TT |
613 | VEC (const_char_ptr) *item_names = NULL, *filters = NULL; |
614 | struct get_number_or_range_state state; | |
50641945 | 615 | |
f8eba3c6 TT |
616 | gdb_assert (select_mode != multiple_symbols_all); |
617 | gdb_assert (self->canonical != NULL); | |
50641945 | 618 | |
f8eba3c6 TT |
619 | old_chain = make_cleanup (VEC_cleanup (const_char_ptr), &item_names); |
620 | make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
621 | for (i = 0; i < result->nelts; ++i) | |
50641945 | 622 | { |
f8eba3c6 TT |
623 | int j, found = 0; |
624 | const char *iter; | |
625 | ||
626 | gdb_assert (self->canonical_names[i] != NULL); | |
627 | for (j = 0; VEC_iterate (const_char_ptr, item_names, j, iter); ++j) | |
628 | { | |
629 | if (strcmp (iter, self->canonical_names[i]) == 0) | |
630 | { | |
631 | found = 1; | |
632 | break; | |
633 | } | |
634 | } | |
635 | ||
636 | if (!found) | |
637 | VEC_safe_push (const_char_ptr, item_names, self->canonical_names[i]); | |
50641945 FN |
638 | } |
639 | ||
f8eba3c6 TT |
640 | if (select_mode == multiple_symbols_cancel |
641 | && VEC_length (const_char_ptr, item_names) > 1) | |
642 | error (_("canceled because the command is ambiguous\n" | |
643 | "See set/show multiple-symbol.")); | |
644 | ||
645 | if (select_mode == multiple_symbols_all | |
646 | || VEC_length (const_char_ptr, item_names) == 1) | |
50641945 | 647 | { |
f8eba3c6 TT |
648 | do_cleanups (old_chain); |
649 | convert_results_to_lsals (self, result); | |
650 | return; | |
50641945 FN |
651 | } |
652 | ||
f8eba3c6 TT |
653 | printf_unfiltered (_("[0] cancel\n[1] all\n")); |
654 | for (i = 0; VEC_iterate (const_char_ptr, item_names, i, iter); ++i) | |
655 | printf_unfiltered ("[%d] %s\n", i + 2, iter); | |
656 | ||
657 | prompt = getenv ("PS2"); | |
658 | if (prompt == NULL) | |
50641945 | 659 | { |
f8eba3c6 | 660 | prompt = "> "; |
50641945 | 661 | } |
f8eba3c6 | 662 | args = command_line_input (prompt, 0, "overload-choice"); |
50641945 FN |
663 | |
664 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 665 | error_no_arg (_("one or more choice numbers")); |
50641945 | 666 | |
f8eba3c6 TT |
667 | init_number_or_range (&state, args); |
668 | while (!state.finished) | |
50641945 FN |
669 | { |
670 | int num; | |
671 | ||
f8eba3c6 | 672 | num = get_number_or_range (&state); |
50641945 FN |
673 | |
674 | if (num == 0) | |
8a3fe4f8 | 675 | error (_("canceled")); |
50641945 FN |
676 | else if (num == 1) |
677 | { | |
f8eba3c6 TT |
678 | /* We intentionally make this result in a single breakpoint, |
679 | contrary to what older versions of gdb did. The | |
680 | rationale is that this lets a user get the | |
681 | multiple_symbols_all behavior even with the 'ask' | |
682 | setting; and he can get separate breakpoints by entering | |
683 | "2-57" at the query. */ | |
684 | do_cleanups (old_chain); | |
685 | convert_results_to_lsals (self, result); | |
686 | return; | |
50641945 FN |
687 | } |
688 | ||
f8eba3c6 TT |
689 | num -= 2; |
690 | if (num >= VEC_length (const_char_ptr, item_names)) | |
691 | printf_unfiltered (_("No choice number %d.\n"), num); | |
50641945 FN |
692 | else |
693 | { | |
f8eba3c6 TT |
694 | const char *elt = VEC_index (const_char_ptr, item_names, num); |
695 | ||
696 | if (elt != NULL) | |
50641945 | 697 | { |
f8eba3c6 TT |
698 | VEC_safe_push (const_char_ptr, filters, elt); |
699 | VEC_replace (const_char_ptr, item_names, num, NULL); | |
50641945 FN |
700 | } |
701 | else | |
702 | { | |
3e43a32a MS |
703 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
704 | num); | |
50641945 FN |
705 | } |
706 | } | |
50641945 | 707 | } |
f8eba3c6 TT |
708 | |
709 | filter_results (self, result, filters); | |
710 | do_cleanups (old_chain); | |
50641945 | 711 | } |
94af9270 | 712 | |
3d50dd94 JK |
713 | /* Valid delimiters for linespec keywords "if", "thread" or "task". */ |
714 | ||
715 | static int | |
716 | is_linespec_boundary (char c) | |
717 | { | |
718 | return c == ' ' || c == '\t' || c == '\0' || c == ','; | |
719 | } | |
720 | ||
94af9270 KS |
721 | /* A helper function for decode_line_1 and friends which skips P |
722 | past any method overload information at the beginning of P, e.g., | |
723 | "(const struct foo *)". | |
724 | ||
725 | This function assumes that P has already been validated to contain | |
726 | overload information, and it will assert if *P != '('. */ | |
727 | static char * | |
728 | find_method_overload_end (char *p) | |
729 | { | |
730 | int depth = 0; | |
731 | ||
732 | gdb_assert (*p == '('); | |
733 | ||
734 | while (*p) | |
735 | { | |
736 | if (*p == '(') | |
737 | ++depth; | |
738 | else if (*p == ')') | |
739 | { | |
740 | if (--depth == 0) | |
741 | { | |
742 | ++p; | |
743 | break; | |
744 | } | |
745 | } | |
746 | ++p; | |
747 | } | |
748 | ||
749 | return p; | |
750 | } | |
c00f8484 | 751 | |
c00f8484 | 752 | /* Keep important information used when looking up a name. This includes |
3d50dd94 JK |
753 | template parameters, overload information, and important keywords, including |
754 | the possible Java trailing type. */ | |
c00f8484 KS |
755 | |
756 | static char * | |
3d50dd94 | 757 | keep_name_info (char *p, int on_boundary) |
c00f8484 | 758 | { |
3d50dd94 JK |
759 | const char *quotes = get_gdb_completer_quote_characters (); |
760 | char *saved_p = p; | |
761 | int nest = 0; | |
c00f8484 | 762 | |
3d50dd94 JK |
763 | while (*p) |
764 | { | |
765 | if (strchr (quotes, *p)) | |
766 | break; | |
c00f8484 | 767 | |
3d50dd94 JK |
768 | if (*p == ',' && !nest) |
769 | break; | |
c00f8484 | 770 | |
3d50dd94 JK |
771 | if (on_boundary && !nest) |
772 | { | |
773 | const char *const words[] = { "if", "thread", "task" }; | |
774 | int wordi; | |
c00f8484 | 775 | |
3d50dd94 JK |
776 | for (wordi = 0; wordi < ARRAY_SIZE (words); wordi++) |
777 | if (strncmp (p, words[wordi], strlen (words[wordi])) == 0 | |
778 | && is_linespec_boundary (p[strlen (words[wordi])])) | |
779 | break; | |
780 | if (wordi < ARRAY_SIZE (words)) | |
781 | break; | |
782 | } | |
c00f8484 | 783 | |
3d50dd94 JK |
784 | if (*p == '(' || *p == '<' || *p == '[') |
785 | nest++; | |
786 | else if ((*p == ')' || *p == '>' || *p == ']') && nest > 0) | |
787 | nest--; | |
c00f8484 | 788 | |
3d50dd94 JK |
789 | p++; |
790 | ||
791 | /* The ',' check could fail on "operator ,". */ | |
792 | p += cp_validate_operator (p); | |
793 | ||
794 | on_boundary = is_linespec_boundary (p[-1]); | |
f17170e5 | 795 | } |
c00f8484 | 796 | |
3d50dd94 JK |
797 | while (p > saved_p && is_linespec_boundary (p[-1])) |
798 | p--; | |
799 | ||
800 | return p; | |
c00f8484 KS |
801 | } |
802 | ||
50641945 | 803 | \f |
1777feb0 | 804 | /* The parser of linespec itself. */ |
50641945 FN |
805 | |
806 | /* Parse a string that specifies a line number. | |
807 | Pass the address of a char * variable; that variable will be | |
808 | advanced over the characters actually parsed. | |
809 | ||
810 | The string can be: | |
811 | ||
812 | LINENUM -- that line number in current file. PC returned is 0. | |
813 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
814 | FUNCTION -- line number of openbrace of that function. | |
815 | PC returned is the start of the function. | |
0f5238ed | 816 | LABEL -- a label in the current scope |
50641945 FN |
817 | VARIABLE -- line number of definition of that variable. |
818 | PC returned is 0. | |
819 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
820 | *EXPR -- line in which address EXPR appears. | |
821 | ||
822 | This may all be followed by an "if EXPR", which we ignore. | |
823 | ||
824 | FUNCTION may be an undebuggable function found in minimal symbol table. | |
825 | ||
826 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
827 | of real code inside a function when a function is specified, and it is | |
828 | not OK to specify a variable or type to get its line number. | |
829 | ||
830 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
831 | It defaults to current_source_symtab. | |
832 | DEFAULT_LINE specifies the line number to use for relative | |
833 | line numbers (that start with signs). Defaults to current_source_line. | |
834 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
1777feb0 | 835 | line specs there if necessary. Currently overloaded member functions and |
50641945 | 836 | line numbers or static functions without a filename yield a canonical |
1777feb0 | 837 | line spec. The array and the line spec strings are allocated on the heap, |
50641945 FN |
838 | it is the callers responsibility to free them. |
839 | ||
840 | Note that it is possible to return zero for the symtab | |
841 | if no file is validly specified. Callers must check that. | |
58438ac1 | 842 | Also, the line number returned may be invalid. */ |
50641945 FN |
843 | |
844 | /* We allow single quotes in various places. This is a hideous | |
845 | kludge, which exists because the completer can't yet deal with the | |
846 | lack of single quotes. FIXME: write a linespec_completer which we | |
847 | can use as appropriate instead of make_symbol_completion_list. */ | |
848 | ||
ad32032e | 849 | static struct symtabs_and_lines |
f8eba3c6 | 850 | decode_line_internal (struct linespec_state *self, char **argptr) |
50641945 | 851 | { |
f3c39e76 | 852 | char *p; |
614b3b14 | 853 | char *q; |
50641945 | 854 | |
50641945 | 855 | char *copy; |
636b1a6d DC |
856 | /* This says whether or not something in *ARGPTR is quoted with |
857 | completer_quotes (i.e. with single quotes). */ | |
e325fb69 | 858 | int is_quoted; |
e5dd4106 | 859 | /* Is *ARGPTR enclosed in double quotes? */ |
50641945 | 860 | int is_quote_enclosed; |
d2630e69 | 861 | int is_objc_method = 0; |
50641945 | 862 | char *saved_arg = *argptr; |
791dfb64 DJ |
863 | /* If IS_QUOTED, the end of the quoted bit. */ |
864 | char *end_quote = NULL; | |
e8eb7bc5 KS |
865 | /* Is *ARGPTR enclosed in single quotes? */ |
866 | int is_squote_enclosed = 0; | |
0e0b460e KS |
867 | /* The "first half" of the linespec. */ |
868 | char *first_half; | |
50641945 | 869 | |
f8eba3c6 TT |
870 | /* If we are parsing `function:label', this holds the symbols |
871 | matching the function name. */ | |
872 | VEC (symbolp) *function_symbols = NULL; | |
873 | /* If FUNCTION_SYMBOLS is not NULL, then this is the exception that | |
9ef07c8c TT |
874 | was thrown when trying to parse a filename. */ |
875 | volatile struct gdb_exception file_exception; | |
876 | ||
f8eba3c6 TT |
877 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
878 | ||
50641945 FN |
879 | /* Defaults have defaults. */ |
880 | ||
f8eba3c6 | 881 | initialize_defaults (&self->default_symtab, &self->default_line); |
44fe14ab | 882 | |
a04257e6 | 883 | /* See if arg is *PC. */ |
50641945 | 884 | |
e325fb69 | 885 | if (**argptr == '*') |
f8eba3c6 TT |
886 | { |
887 | do_cleanups (cleanup); | |
888 | return decode_indirect (self, argptr); | |
889 | } | |
5f01dbc0 | 890 | |
e325fb69 MS |
891 | is_quoted = (strchr (get_gdb_completer_quote_characters (), |
892 | **argptr) != NULL); | |
50641945 | 893 | |
791dfb64 | 894 | if (is_quoted) |
e8eb7bc5 KS |
895 | { |
896 | end_quote = skip_quoted (*argptr); | |
897 | if (*end_quote == '\0') | |
898 | is_squote_enclosed = 1; | |
899 | } | |
50641945 | 900 | |
0960f083 DC |
901 | /* Check to see if it's a multipart linespec (with colons or |
902 | periods). */ | |
50641945 | 903 | |
17763fd9 EZ |
904 | /* Locate the end of the first half of the linespec. |
905 | After the call, for instance, if the argptr string is "foo.c:123" | |
906 | p will point at "123". If there is only one part, like "foo", p | |
1777feb0 MS |
907 | will point to "". If this is a C++ name, like "A::B::foo", p will |
908 | point to "::B::foo". Argptr is not changed by this call. */ | |
50641945 | 909 | |
0e0b460e | 910 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); |
50641945 | 911 | |
e8eb7bc5 | 912 | /* First things first: if ARGPTR starts with a filename, get its |
136e1c30 DE |
913 | symtab and strip the filename from ARGPTR. |
914 | Avoid calling symtab_from_filename if we know can, | |
915 | it can be expensive. */ | |
916 | ||
917 | if (*p != '\0') | |
e8eb7bc5 | 918 | { |
136e1c30 DE |
919 | TRY_CATCH (file_exception, RETURN_MASK_ERROR) |
920 | { | |
921 | self->file_symtabs = symtabs_from_filename (argptr, p, | |
922 | is_quote_enclosed, | |
923 | &self->user_filename); | |
924 | } | |
925 | ||
926 | if (file_exception.reason >= 0) | |
927 | { | |
928 | /* Check for single quotes on the non-filename part. */ | |
929 | is_quoted = (**argptr | |
930 | && strchr (get_gdb_completer_quote_characters (), | |
931 | **argptr) != NULL); | |
932 | if (is_quoted) | |
933 | end_quote = skip_quoted (*argptr); | |
934 | ||
935 | /* Locate the next "half" of the linespec. */ | |
936 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); | |
937 | } | |
f8eba3c6 | 938 | |
136e1c30 DE |
939 | if (VEC_empty (symtab_p, self->file_symtabs)) |
940 | { | |
941 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ | |
942 | VEC_safe_push (symtab_p, self->file_symtabs, NULL); | |
943 | } | |
944 | } | |
945 | else | |
f8eba3c6 TT |
946 | { |
947 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ | |
948 | VEC_safe_push (symtab_p, self->file_symtabs, NULL); | |
e8eb7bc5 KS |
949 | } |
950 | ||
d2630e69 AF |
951 | /* Check if this is an Objective-C method (anything that starts with |
952 | a '+' or '-' and a '['). */ | |
889f28e2 | 953 | if (is_objc_method_format (p)) |
94af9270 | 954 | is_objc_method = 1; |
d2630e69 AF |
955 | |
956 | /* Check if the symbol could be an Objective-C selector. */ | |
957 | ||
958 | { | |
959 | struct symtabs_and_lines values; | |
e0881a8e | 960 | |
f8eba3c6 | 961 | values = decode_objc (self, argptr); |
d2630e69 | 962 | if (values.sals != NULL) |
f8eba3c6 TT |
963 | { |
964 | do_cleanups (cleanup); | |
965 | return values; | |
966 | } | |
d2630e69 AF |
967 | } |
968 | ||
0960f083 | 969 | /* Does it look like there actually were two parts? */ |
50641945 | 970 | |
791dfb64 | 971 | if (p[0] == ':' || p[0] == '.') |
50641945 | 972 | { |
17763fd9 EZ |
973 | /* Is it a C++ or Java compound data structure? |
974 | The check on p[1] == ':' is capturing the case of "::", | |
1777feb0 | 975 | since p[0]==':' was checked above. |
17763fd9 EZ |
976 | Note that the call to decode_compound does everything |
977 | for us, including the lookup on the symbol table, so we | |
1777feb0 | 978 | can return now. */ |
17763fd9 | 979 | |
50641945 | 980 | if (p[0] == '.' || p[1] == ':') |
791dfb64 | 981 | { |
1dabb4c4 JB |
982 | /* We only perform this check for the languages where it might |
983 | make sense. For instance, Ada does not use this type of | |
984 | syntax, and trying to apply this logic on an Ada linespec | |
985 | may trigger a spurious error (for instance, decode_compound | |
986 | does not like expressions such as `ops."<"', which is a | |
987 | valid function name in Ada). */ | |
988 | if (current_language->la_language == language_c | |
989 | || current_language->la_language == language_cplus | |
990 | || current_language->la_language == language_java) | |
991 | { | |
992 | struct symtabs_and_lines values; | |
993 | volatile struct gdb_exception ex; | |
994 | char *saved_argptr = *argptr; | |
94af9270 | 995 | |
1dabb4c4 JB |
996 | if (is_quote_enclosed) |
997 | ++saved_arg; | |
dcf9f4ab | 998 | |
1dabb4c4 JB |
999 | /* Initialize it just to avoid a GCC false warning. */ |
1000 | memset (&values, 0, sizeof (values)); | |
2f741504 | 1001 | |
1dabb4c4 JB |
1002 | TRY_CATCH (ex, RETURN_MASK_ERROR) |
1003 | { | |
1004 | values = decode_compound (self, argptr, saved_arg, p); | |
1005 | } | |
1006 | if ((is_quoted || is_squote_enclosed) && **argptr == '\'') | |
1007 | *argptr = *argptr + 1; | |
50641945 | 1008 | |
1dabb4c4 JB |
1009 | if (ex.reason >= 0) |
1010 | { | |
1011 | do_cleanups (cleanup); | |
1012 | return values; | |
1013 | } | |
50641945 | 1014 | |
1dabb4c4 JB |
1015 | if (ex.error != NOT_FOUND_ERROR) |
1016 | throw_exception (ex); | |
dcf9f4ab | 1017 | |
1dabb4c4 JB |
1018 | *argptr = saved_argptr; |
1019 | } | |
dcf9f4ab JK |
1020 | } |
1021 | else | |
50641945 | 1022 | { |
dcf9f4ab JK |
1023 | /* If there was an exception looking up a specified filename earlier, |
1024 | then check whether we were really given `function:label'. */ | |
1025 | if (file_exception.reason < 0) | |
1026 | { | |
f8eba3c6 TT |
1027 | function_symbols = find_function_symbols (argptr, p, |
1028 | is_quote_enclosed, | |
1029 | &self->user_function); | |
1030 | ||
dcf9f4ab JK |
1031 | /* If we did not find a function, re-throw the original |
1032 | exception. */ | |
f8eba3c6 | 1033 | if (!function_symbols) |
dcf9f4ab | 1034 | throw_exception (file_exception); |
f8eba3c6 TT |
1035 | |
1036 | make_cleanup (VEC_cleanup (symbolp), &function_symbols); | |
dcf9f4ab JK |
1037 | } |
1038 | ||
1039 | /* Check for single quotes on the non-filename part. */ | |
1040 | if (!is_quoted) | |
1041 | { | |
1042 | is_quoted = (**argptr | |
1043 | && strchr (get_gdb_completer_quote_characters (), | |
1044 | **argptr) != NULL); | |
1045 | if (is_quoted) | |
1046 | end_quote = skip_quoted (*argptr); | |
1047 | } | |
50641945 | 1048 | } |
50641945 | 1049 | } |
50641945 | 1050 | |
f8eba3c6 TT |
1051 | /* self->file_symtabs holds the specified file symtabs, or 0 if no file |
1052 | specified. | |
1053 | If we are parsing `function:symbol', then FUNCTION_SYMBOLS holds the | |
1054 | functions before the `:'. | |
50641945 FN |
1055 | arg no longer contains the file name. */ |
1056 | ||
0e0b460e KS |
1057 | /* If the filename was quoted, we must re-check the quotation. */ |
1058 | ||
1059 | if (end_quote == first_half && *end_quote!= '\0') | |
1060 | { | |
1061 | is_quoted = (**argptr | |
1062 | && strchr (get_gdb_completer_quote_characters (), | |
1063 | **argptr) != NULL); | |
1064 | if (is_quoted) | |
1065 | end_quote = skip_quoted (*argptr); | |
1066 | } | |
1067 | ||
a04257e6 | 1068 | /* Check whether arg is all digits (and sign). */ |
50641945 FN |
1069 | |
1070 | q = *argptr; | |
1071 | if (*q == '-' || *q == '+') | |
1072 | q++; | |
1073 | while (*q >= '0' && *q <= '9') | |
1074 | q++; | |
1075 | ||
9ef07c8c | 1076 | if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ',') |
f8eba3c6 TT |
1077 | && function_symbols == NULL) |
1078 | { | |
1079 | struct symtabs_and_lines values; | |
1080 | ||
1081 | /* We found a token consisting of all digits -- at least one digit. */ | |
1082 | values = decode_all_digits (self, argptr, q); | |
1083 | do_cleanups (cleanup); | |
1084 | return values; | |
1085 | } | |
50641945 FN |
1086 | |
1087 | /* Arg token is not digits => try it as a variable name | |
1088 | Find the next token (everything up to end or next whitespace). */ | |
1089 | ||
a04257e6 DC |
1090 | if (**argptr == '$') /* May be a convenience variable. */ |
1091 | /* One or two $ chars possible. */ | |
1092 | p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); | |
e8eb7bc5 | 1093 | else if (is_quoted || is_squote_enclosed) |
50641945 | 1094 | { |
791dfb64 | 1095 | p = end_quote; |
50641945 | 1096 | if (p[-1] != '\'') |
8a3fe4f8 | 1097 | error (_("Unmatched single quote.")); |
50641945 | 1098 | } |
d2630e69 AF |
1099 | else if (is_objc_method) |
1100 | { | |
1777feb0 | 1101 | /* allow word separators in method names for Obj-C. */ |
d2630e69 AF |
1102 | p = skip_quoted_chars (*argptr, NULL, ""); |
1103 | } | |
50641945 FN |
1104 | else |
1105 | { | |
1106 | p = skip_quoted (*argptr); | |
1107 | } | |
1108 | ||
c00f8484 | 1109 | /* Keep any important naming information. */ |
3d50dd94 | 1110 | p = keep_name_info (p, p == saved_arg || is_linespec_boundary (p[-1])); |
94af9270 | 1111 | |
50641945 FN |
1112 | copy = (char *) alloca (p - *argptr + 1); |
1113 | memcpy (copy, *argptr, p - *argptr); | |
1114 | copy[p - *argptr] = '\0'; | |
1115 | if (p != *argptr | |
1116 | && copy[0] | |
1117 | && copy[0] == copy[p - *argptr - 1] | |
c5f0f3d0 | 1118 | && strchr (get_gdb_completer_quote_characters (), copy[0]) != NULL) |
50641945 FN |
1119 | { |
1120 | copy[p - *argptr - 1] = '\0'; | |
1121 | copy++; | |
1122 | } | |
e8eb7bc5 | 1123 | else if (is_quoted || is_squote_enclosed) |
791dfb64 | 1124 | copy[p - *argptr - 1] = '\0'; |
f8eba3c6 TT |
1125 | |
1126 | *argptr = skip_spaces (p); | |
50641945 FN |
1127 | |
1128 | /* If it starts with $: may be a legitimate variable or routine name | |
1129 | (e.g. HP-UX millicode routines such as $$dyncall), or it may | |
a04257e6 | 1130 | be history value, or it may be a convenience variable. */ |
50641945 | 1131 | |
f8eba3c6 TT |
1132 | if (*copy == '$' && function_symbols == NULL) |
1133 | { | |
1134 | struct symtabs_and_lines values; | |
1135 | ||
1136 | values = decode_dollar (self, copy); | |
1137 | do_cleanups (cleanup); | |
1138 | return values; | |
1139 | } | |
50641945 | 1140 | |
0f5238ed TT |
1141 | /* Try the token as a label, but only if no file was specified, |
1142 | because we can only really find labels in the current scope. */ | |
1143 | ||
f8eba3c6 TT |
1144 | if (VEC_length (symtab_p, self->file_symtabs) == 1 |
1145 | && VEC_index (symtab_p, self->file_symtabs, 0) == NULL) | |
0f5238ed TT |
1146 | { |
1147 | struct symtabs_and_lines label_result; | |
f8eba3c6 TT |
1148 | if (decode_label (self, function_symbols, copy, &label_result)) |
1149 | { | |
1150 | do_cleanups (cleanup); | |
1151 | return label_result; | |
1152 | } | |
0f5238ed TT |
1153 | } |
1154 | ||
f8eba3c6 | 1155 | if (function_symbols) |
58438ac1 | 1156 | throw_exception (file_exception); |
9ef07c8c | 1157 | |
50641945 FN |
1158 | /* Look up that token as a variable. |
1159 | If file specified, use that file's per-file block to start with. */ | |
1160 | ||
f8eba3c6 TT |
1161 | { |
1162 | struct symtabs_and_lines values; | |
1163 | ||
1164 | values = decode_variable (self, copy); | |
1165 | do_cleanups (cleanup); | |
1166 | return values; | |
1167 | } | |
413dad4d | 1168 | } |
50641945 | 1169 | |
f8eba3c6 | 1170 | /* A constructor for linespec_state. */ |
44fe14ab | 1171 | |
f8eba3c6 TT |
1172 | static void |
1173 | linespec_state_constructor (struct linespec_state *self, | |
1174 | int flags, | |
1175 | struct symtab *default_symtab, | |
1176 | int default_line, | |
1177 | struct linespec_result *canonical) | |
1178 | { | |
1179 | memset (self, 0, sizeof (*self)); | |
1180 | self->funfirstline = (flags & DECODE_LINE_FUNFIRSTLINE) ? 1 : 0; | |
1181 | self->list_mode = (flags & DECODE_LINE_LIST_MODE) ? 1 : 0; | |
1182 | self->default_symtab = default_symtab; | |
1183 | self->default_line = default_line; | |
1184 | self->canonical = canonical; | |
1185 | self->program_space = current_program_space; | |
1186 | self->addr_set = htab_create_alloc (10, hash_address_entry, eq_address_entry, | |
1187 | xfree, xcalloc, xfree); | |
1188 | } | |
44fe14ab | 1189 | |
f8eba3c6 | 1190 | /* A destructor for linespec_state. */ |
44fe14ab DC |
1191 | |
1192 | static void | |
f8eba3c6 | 1193 | linespec_state_destructor (void *arg) |
44fe14ab | 1194 | { |
f8eba3c6 | 1195 | struct linespec_state *self = arg; |
44fe14ab | 1196 | |
f8eba3c6 TT |
1197 | xfree (self->user_filename); |
1198 | xfree (self->user_function); | |
1199 | VEC_free (symtab_p, self->file_symtabs); | |
1200 | htab_delete (self->addr_set); | |
1201 | } | |
44fe14ab | 1202 | |
f8eba3c6 | 1203 | /* See linespec.h. */ |
44fe14ab | 1204 | |
f8eba3c6 TT |
1205 | void |
1206 | decode_line_full (char **argptr, int flags, | |
1207 | struct symtab *default_symtab, | |
1208 | int default_line, struct linespec_result *canonical, | |
1209 | const char *select_mode, | |
1210 | const char *filter) | |
44fe14ab | 1211 | { |
f8eba3c6 TT |
1212 | struct symtabs_and_lines result; |
1213 | struct linespec_state state; | |
1214 | struct cleanup *cleanups; | |
1215 | char *arg_start = *argptr; | |
1216 | VEC (const_char_ptr) *filters = NULL; | |
1217 | ||
1218 | gdb_assert (canonical != NULL); | |
1219 | /* The filter only makes sense for 'all'. */ | |
1220 | gdb_assert (filter == NULL || select_mode == multiple_symbols_all); | |
1221 | gdb_assert (select_mode == NULL | |
1222 | || select_mode == multiple_symbols_all | |
1223 | || select_mode == multiple_symbols_ask | |
1224 | || select_mode == multiple_symbols_cancel); | |
1225 | gdb_assert ((flags & DECODE_LINE_LIST_MODE) == 0); | |
1226 | ||
1227 | linespec_state_constructor (&state, flags, | |
1228 | default_symtab, default_line, canonical); | |
1229 | cleanups = make_cleanup (linespec_state_destructor, &state); | |
1230 | save_current_program_space (); | |
1231 | ||
1232 | result = decode_line_internal (&state, argptr); | |
1233 | ||
1234 | gdb_assert (result.nelts == 1 || canonical->pre_expanded); | |
1235 | gdb_assert (canonical->addr_string != NULL); | |
1236 | canonical->pre_expanded = 1; | |
1237 | ||
1238 | /* Fill in the missing canonical names. */ | |
1239 | if (result.nelts > 0) | |
1240 | { | |
1241 | int i; | |
1242 | ||
1243 | if (state.canonical_names == NULL) | |
1244 | state.canonical_names = xcalloc (result.nelts, sizeof (char *)); | |
1245 | make_cleanup (xfree, state.canonical_names); | |
1246 | for (i = 0; i < result.nelts; ++i) | |
1247 | { | |
1248 | if (state.canonical_names[i] == NULL) | |
1249 | state.canonical_names[i] = savestring (arg_start, | |
1250 | *argptr - arg_start); | |
1251 | make_cleanup (xfree, state.canonical_names[i]); | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | if (select_mode == NULL) | |
1256 | { | |
1257 | if (ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
1258 | select_mode = multiple_symbols_all; | |
1259 | else | |
1260 | select_mode = multiple_symbols_select_mode (); | |
1261 | } | |
1262 | ||
1263 | if (select_mode == multiple_symbols_all) | |
1264 | { | |
1265 | if (filter != NULL) | |
1266 | { | |
1267 | make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
1268 | VEC_safe_push (const_char_ptr, filters, filter); | |
1269 | filter_results (&state, &result, filters); | |
1270 | } | |
1271 | else | |
1272 | convert_results_to_lsals (&state, &result); | |
1273 | } | |
1274 | else | |
1275 | decode_line_2 (&state, &result, select_mode); | |
1276 | ||
1277 | do_cleanups (cleanups); | |
1278 | } | |
1279 | ||
1280 | struct symtabs_and_lines | |
1281 | decode_line_1 (char **argptr, int flags, | |
1282 | struct symtab *default_symtab, | |
1283 | int default_line) | |
1284 | { | |
1285 | struct symtabs_and_lines result; | |
1286 | struct linespec_state state; | |
1287 | struct cleanup *cleanups; | |
1288 | ||
1289 | linespec_state_constructor (&state, flags, | |
1290 | default_symtab, default_line, NULL); | |
1291 | cleanups = make_cleanup (linespec_state_destructor, &state); | |
1292 | save_current_program_space (); | |
1293 | ||
1294 | result = decode_line_internal (&state, argptr); | |
1295 | do_cleanups (cleanups); | |
1296 | return result; | |
1297 | } | |
1298 | ||
1299 | \f | |
1300 | ||
1301 | /* First, some functions to initialize stuff at the beggining of the | |
1302 | function. */ | |
1303 | ||
1304 | static void | |
1305 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
1306 | { | |
1307 | if (*default_symtab == 0) | |
1308 | { | |
1309 | /* Use whatever we have for the default source line. We don't use | |
1310 | get_current_or_default_symtab_and_line as it can recurse and call | |
1311 | us back! */ | |
1312 | struct symtab_and_line cursal = | |
1313 | get_current_source_symtab_and_line (); | |
1314 | ||
1315 | *default_symtab = cursal.symtab; | |
1316 | *default_line = cursal.line; | |
1317 | } | |
1318 | } | |
1319 | ||
1320 | \f | |
1321 | ||
1322 | /* Decode arg of the form *PC. */ | |
1323 | ||
1324 | static struct symtabs_and_lines | |
1325 | decode_indirect (struct linespec_state *self, char **argptr) | |
1326 | { | |
1327 | struct symtabs_and_lines values; | |
1328 | CORE_ADDR pc; | |
1329 | char *initial = *argptr; | |
1330 | ||
1331 | if (current_program_space->executing_startup) | |
1332 | /* The error message doesn't really matter, because this case | |
1333 | should only hit during breakpoint reset. */ | |
1334 | throw_error (NOT_FOUND_ERROR, _("cannot evaluate expressions while " | |
1335 | "program space is in startup")); | |
1336 | ||
44fe14ab | 1337 | (*argptr)++; |
63ffa6ee | 1338 | pc = value_as_address (parse_to_comma_and_eval (argptr)); |
44fe14ab DC |
1339 | |
1340 | values.sals = (struct symtab_and_line *) | |
1341 | xmalloc (sizeof (struct symtab_and_line)); | |
1342 | ||
1343 | values.nelts = 1; | |
1344 | values.sals[0] = find_pc_line (pc, 0); | |
1345 | values.sals[0].pc = pc; | |
1346 | values.sals[0].section = find_pc_overlay (pc); | |
ed0616c6 | 1347 | values.sals[0].explicit_pc = 1; |
44fe14ab | 1348 | |
f8eba3c6 TT |
1349 | if (self->canonical) |
1350 | self->canonical->addr_string = savestring (initial, *argptr - initial); | |
1351 | ||
44fe14ab DC |
1352 | return values; |
1353 | } | |
413dad4d DC |
1354 | |
1355 | \f | |
1356 | ||
0960f083 DC |
1357 | /* Locate the first half of the linespec, ending in a colon, period, |
1358 | or whitespace. (More or less.) Also, check to see if *ARGPTR is | |
1359 | enclosed in double quotes; if so, set is_quote_enclosed, advance | |
17763fd9 EZ |
1360 | ARGPTR past that and zero out the trailing double quote. |
1361 | If ARGPTR is just a simple name like "main", p will point to "" | |
1362 | at the end. */ | |
0960f083 DC |
1363 | |
1364 | static char * | |
1365 | locate_first_half (char **argptr, int *is_quote_enclosed) | |
1366 | { | |
1367 | char *ii; | |
1368 | char *p, *p1; | |
1369 | int has_comma; | |
1370 | ||
53907c91 JB |
1371 | /* Check if the linespec starts with an Ada operator (such as "+", |
1372 | or ">", for instance). */ | |
1373 | p = *argptr; | |
1374 | if (p[0] == '"' | |
1375 | && current_language->la_language == language_ada) | |
1376 | { | |
1377 | const struct ada_opname_map *op; | |
1378 | ||
1379 | for (op = ada_opname_table; op->encoded != NULL; op++) | |
1380 | if (strncmp (op->decoded, p, strlen (op->decoded)) == 0) | |
1381 | break; | |
1382 | if (op->encoded != NULL) | |
1383 | { | |
1384 | *is_quote_enclosed = 0; | |
1385 | return p + strlen (op->decoded); | |
1386 | } | |
1387 | } | |
1388 | ||
0960f083 DC |
1389 | /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM |
1390 | and we must isolate the first half. Outer layers will call again later | |
1391 | for the second half. | |
1392 | ||
1393 | Don't count commas that appear in argument lists of overloaded | |
1394 | functions, or in quoted strings. It's stupid to go to this much | |
1395 | trouble when the rest of the function is such an obvious roach hotel. */ | |
1396 | ii = find_toplevel_char (*argptr, ','); | |
1397 | has_comma = (ii != 0); | |
1398 | ||
a04257e6 | 1399 | /* Temporarily zap out second half to not confuse the code below. |
1777feb0 | 1400 | This is undone below. Do not change ii!! */ |
0960f083 DC |
1401 | if (has_comma) |
1402 | { | |
1403 | *ii = '\0'; | |
1404 | } | |
1405 | ||
a04257e6 DC |
1406 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION. May also be |
1407 | CLASS::MEMBER, or NAMESPACE::NAME. Look for ':', but ignore | |
1408 | inside of <>. */ | |
0960f083 DC |
1409 | |
1410 | p = *argptr; | |
1411 | if (p[0] == '"') | |
1412 | { | |
1413 | *is_quote_enclosed = 1; | |
1414 | (*argptr)++; | |
1415 | p++; | |
1416 | } | |
1417 | else | |
0e0b460e KS |
1418 | { |
1419 | *is_quote_enclosed = 0; | |
1420 | if (strchr (get_gdb_completer_quote_characters (), *p)) | |
1421 | { | |
1422 | ++(*argptr); | |
1423 | ++p; | |
1424 | } | |
1425 | } | |
731971ed KS |
1426 | |
1427 | ||
1428 | /* Check for a drive letter in the filename. This is done on all hosts | |
1429 | to capture cross-compilation environments. On Unixen, directory | |
1430 | separators are illegal in filenames, so if the user enters "e:/foo.c", | |
1431 | he is referring to a directory named "e:" and a source file named | |
1432 | "foo.c", and we still want to keep these two pieces together. */ | |
1433 | if (isalpha (p[0]) && p[1] == ':' && IS_DIR_SEPARATOR (p[2])) | |
1434 | p += 3; | |
1435 | ||
0960f083 DC |
1436 | for (; *p; p++) |
1437 | { | |
1438 | if (p[0] == '<') | |
1439 | { | |
1440 | char *temp_end = find_template_name_end (p); | |
e0881a8e | 1441 | |
0960f083 | 1442 | if (!temp_end) |
8a3fe4f8 | 1443 | error (_("malformed template specification in command")); |
0960f083 DC |
1444 | p = temp_end; |
1445 | } | |
c00f8484 KS |
1446 | |
1447 | if (p[0] == '(') | |
1448 | p = find_method_overload_end (p); | |
1449 | ||
d2630e69 | 1450 | /* Check for a colon and a plus or minus and a [ (which |
1777feb0 | 1451 | indicates an Objective-C method). */ |
889f28e2 | 1452 | if (is_objc_method_format (p)) |
d2630e69 AF |
1453 | { |
1454 | break; | |
1455 | } | |
a04257e6 | 1456 | /* Check for the end of the first half of the linespec. End of |
e8eb7bc5 KS |
1457 | line, a tab, a colon or a space. But if enclosed in double |
1458 | quotes we do not break on enclosed spaces. */ | |
0960f083 DC |
1459 | if (!*p |
1460 | || p[0] == '\t' | |
e8eb7bc5 | 1461 | || (p[0] == ':') |
0960f083 DC |
1462 | || ((p[0] == ' ') && !*is_quote_enclosed)) |
1463 | break; | |
a04257e6 | 1464 | if (p[0] == '.' && strchr (p, ':') == NULL) |
0960f083 | 1465 | { |
a04257e6 | 1466 | /* Java qualified method. Find the *last* '.', since the |
94af9270 KS |
1467 | others are package qualifiers. Stop at any open parenthesis |
1468 | which might provide overload information. */ | |
1469 | for (p1 = p; *p1 && *p1 != '('; p1++) | |
0960f083 DC |
1470 | { |
1471 | if (*p1 == '.') | |
1472 | p = p1; | |
1473 | } | |
1474 | break; | |
1475 | } | |
1476 | } | |
f8eba3c6 | 1477 | p = skip_spaces (p); |
0960f083 | 1478 | |
a04257e6 | 1479 | /* If the closing double quote was left at the end, remove it. */ |
0960f083 DC |
1480 | if (*is_quote_enclosed) |
1481 | { | |
1482 | char *closing_quote = strchr (p - 1, '"'); | |
e0881a8e | 1483 | |
0960f083 DC |
1484 | if (closing_quote && closing_quote[1] == '\0') |
1485 | *closing_quote = '\0'; | |
1486 | } | |
1487 | ||
a04257e6 DC |
1488 | /* Now that we've safely parsed the first half, put back ',' so |
1489 | outer layers can see it. */ | |
0960f083 DC |
1490 | if (has_comma) |
1491 | *ii = ','; | |
1492 | ||
1493 | return p; | |
1494 | } | |
1495 | ||
1496 | \f | |
1497 | ||
d2630e69 AF |
1498 | /* Here's where we recognise an Objective-C Selector. An Objective C |
1499 | selector may be implemented by more than one class, therefore it | |
1500 | may represent more than one method/function. This gives us a | |
1501 | situation somewhat analogous to C++ overloading. If there's more | |
1502 | than one method that could represent the selector, then use some of | |
1503 | the existing C++ code to let the user choose one. */ | |
1504 | ||
f8eba3c6 TT |
1505 | static struct symtabs_and_lines |
1506 | decode_objc (struct linespec_state *self, char **argptr) | |
d2630e69 | 1507 | { |
f8eba3c6 TT |
1508 | struct collect_info info; |
1509 | VEC (const_char_ptr) *symbol_names = NULL; | |
1510 | char *new_argptr; | |
1511 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr), | |
1512 | &symbol_names); | |
1513 | ||
1514 | info.state = self; | |
1515 | info.result.sals = NULL; | |
1516 | info.result.nelts = 0; | |
f8eba3c6 TT |
1517 | |
1518 | new_argptr = find_imps (*argptr, &symbol_names); | |
1519 | if (VEC_empty (const_char_ptr, symbol_names)) | |
1520 | { | |
1521 | do_cleanups (cleanup); | |
1522 | return info.result; | |
1523 | } | |
d2630e69 | 1524 | |
f8eba3c6 | 1525 | add_all_symbol_names_from_pspace (&info, NULL, symbol_names); |
d2630e69 | 1526 | |
f8eba3c6 | 1527 | if (info.result.nelts > 0) |
d2630e69 | 1528 | { |
f8eba3c6 | 1529 | char *saved_arg; |
d2630e69 | 1530 | |
f8eba3c6 TT |
1531 | saved_arg = alloca (new_argptr - *argptr + 1); |
1532 | memcpy (saved_arg, *argptr, new_argptr - *argptr); | |
1533 | saved_arg[new_argptr - *argptr] = '\0'; | |
d2630e69 | 1534 | |
f8eba3c6 | 1535 | if (self->canonical) |
d2630e69 | 1536 | { |
f8eba3c6 TT |
1537 | self->canonical->pre_expanded = 1; |
1538 | if (self->user_filename) | |
1539 | self->canonical->addr_string | |
1540 | = xstrprintf ("%s:%s", self->user_filename, saved_arg); | |
1541 | else | |
1542 | self->canonical->addr_string = xstrdup (saved_arg); | |
d2630e69 | 1543 | } |
d2630e69 AF |
1544 | } |
1545 | ||
f8eba3c6 | 1546 | *argptr = new_argptr; |
d2630e69 | 1547 | |
f8eba3c6 TT |
1548 | do_cleanups (cleanup); |
1549 | return info.result; | |
d2630e69 AF |
1550 | } |
1551 | ||
614b3b14 | 1552 | /* This handles C++ and Java compound data structures. P should point |
17763fd9 EZ |
1553 | at the first component separator, i.e. double-colon or period. As |
1554 | an example, on entrance to this function we could have ARGPTR | |
1555 | pointing to "AAA::inA::fun" and P pointing to "::inA::fun". */ | |
614b3b14 DC |
1556 | |
1557 | static struct symtabs_and_lines | |
f8eba3c6 TT |
1558 | decode_compound (struct linespec_state *self, |
1559 | char **argptr, char *the_real_saved_arg, char *p) | |
614b3b14 DC |
1560 | { |
1561 | struct symtabs_and_lines values; | |
f8eba3c6 | 1562 | char *p2; |
614b3b14 DC |
1563 | char *saved_arg2 = *argptr; |
1564 | char *temp_end; | |
1565 | struct symbol *sym; | |
614b3b14 | 1566 | char *copy; |
f8eba3c6 TT |
1567 | VEC (symbolp) *sym_classes; |
1568 | char *saved_arg, *class_name; | |
1569 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
c00f8484 KS |
1570 | |
1571 | /* If the user specified any completer quote characters in the input, | |
1572 | strip them. They are superfluous. */ | |
1573 | saved_arg = alloca (strlen (the_real_saved_arg) + 1); | |
1574 | { | |
1575 | char *dst = saved_arg; | |
1576 | char *src = the_real_saved_arg; | |
1577 | char *quotes = get_gdb_completer_quote_characters (); | |
1578 | while (*src != '\0') | |
1579 | { | |
1580 | if (strchr (quotes, *src) == NULL) | |
1581 | *dst++ = *src; | |
1582 | ++src; | |
1583 | } | |
1584 | *dst = '\0'; | |
1585 | } | |
614b3b14 | 1586 | |
17763fd9 EZ |
1587 | /* First check for "global" namespace specification, of the form |
1588 | "::foo". If found, skip over the colons and jump to normal | |
1589 | symbol processing. I.e. the whole line specification starts with | |
1777feb0 | 1590 | "::" (note the condition that *argptr == p). */ |
614b3b14 DC |
1591 | if (p[0] == ':' |
1592 | && ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))) | |
1593 | saved_arg2 += 2; | |
1594 | ||
87b3ede8 DC |
1595 | /* Given our example "AAA::inA::fun", we have two cases to consider: |
1596 | ||
1597 | 1) AAA::inA is the name of a class. In that case, presumably it | |
1598 | has a method called "fun"; we then look up that method using | |
1599 | find_method. | |
1600 | ||
1601 | 2) AAA::inA isn't the name of a class. In that case, either the | |
c00f8484 KS |
1602 | user made a typo, AAA::inA is the name of a namespace, or it is |
1603 | the name of a minimal symbol. | |
f8eba3c6 | 1604 | In this case we just delegate to decode_variable. |
87b3ede8 DC |
1605 | |
1606 | Thus, our first task is to find everything before the last set of | |
1607 | double-colons and figure out if it's the name of a class. So we | |
1608 | first loop through all of the double-colons. */ | |
614b3b14 | 1609 | |
a04257e6 | 1610 | p2 = p; /* Save for restart. */ |
17763fd9 | 1611 | |
1777feb0 | 1612 | /* This is very messy. Following the example above we have now the |
17763fd9 EZ |
1613 | following pointers: |
1614 | p -> "::inA::fun" | |
1615 | argptr -> "AAA::inA::fun | |
1616 | saved_arg -> "AAA::inA::fun | |
1617 | saved_arg2 -> "AAA::inA::fun | |
1777feb0 | 1618 | p2 -> "::inA::fun". */ |
17763fd9 EZ |
1619 | |
1620 | /* In the loop below, with these strings, we'll make 2 passes, each | |
1777feb0 | 1621 | is marked in comments. */ |
17763fd9 | 1622 | |
614b3b14 DC |
1623 | while (1) |
1624 | { | |
c00f8484 KS |
1625 | static char *break_characters = " \t("; |
1626 | ||
a04257e6 | 1627 | /* Move pointer up to next possible class/namespace token. */ |
17763fd9 | 1628 | |
a04257e6 | 1629 | p = p2 + 1; /* Restart with old value +1. */ |
17763fd9 EZ |
1630 | |
1631 | /* PASS1: at this point p2->"::inA::fun", so p->":inA::fun", | |
1632 | i.e. if there is a double-colon, p will now point to the | |
1777feb0 | 1633 | second colon. */ |
87b3ede8 | 1634 | /* PASS2: p2->"::fun", p->":fun" */ |
17763fd9 | 1635 | |
a04257e6 | 1636 | /* Move pointer ahead to next double-colon. */ |
c00f8484 KS |
1637 | while (*p |
1638 | && strchr (break_characters, *p) == NULL | |
1639 | && strchr (get_gdb_completer_quote_characters (), *p) == NULL) | |
614b3b14 | 1640 | { |
12907978 KS |
1641 | if (current_language->la_language == language_cplus) |
1642 | p += cp_validate_operator (p); | |
1643 | ||
614b3b14 DC |
1644 | if (p[0] == '<') |
1645 | { | |
1646 | temp_end = find_template_name_end (p); | |
1647 | if (!temp_end) | |
8a3fe4f8 | 1648 | error (_("malformed template specification in command")); |
614b3b14 DC |
1649 | p = temp_end; |
1650 | } | |
17763fd9 EZ |
1651 | /* Note that, since, at the start of this loop, p would be |
1652 | pointing to the second colon in a double-colon, we only | |
1653 | satisfy the condition below if there is another | |
1777feb0 MS |
1654 | double-colon to the right (after). I.e. there is another |
1655 | component that can be a class or a namespace. I.e, if at | |
17763fd9 EZ |
1656 | the beginning of this loop (PASS1), we had |
1657 | p->":inA::fun", we'll trigger this when p has been | |
1658 | advanced to point to "::fun". */ | |
1777feb0 | 1659 | /* PASS2: we will not trigger this. */ |
614b3b14 | 1660 | else if ((p[0] == ':') && (p[1] == ':')) |
a04257e6 | 1661 | break; /* Found double-colon. */ |
614b3b14 | 1662 | else |
c00f8484 KS |
1663 | { |
1664 | /* PASS2: We'll keep getting here, until P points to one of the | |
1665 | break characters, at which point we exit this loop. */ | |
2b1dbab0 KS |
1666 | if (*p) |
1667 | { | |
1668 | if (p[1] == '(' | |
1669 | && strncmp (&p[1], CP_ANONYMOUS_NAMESPACE_STR, | |
1670 | CP_ANONYMOUS_NAMESPACE_LEN) == 0) | |
1671 | p += CP_ANONYMOUS_NAMESPACE_LEN; | |
1672 | else if (strchr (break_characters, *p) == NULL) | |
1673 | ++p; | |
1674 | } | |
c00f8484 | 1675 | } |
614b3b14 DC |
1676 | } |
1677 | ||
1678 | if (*p != ':') | |
17763fd9 EZ |
1679 | break; /* Out of the while (1). This would happen |
1680 | for instance if we have looked up | |
1681 | unsuccessfully all the components of the | |
1777feb0 | 1682 | string, and p->""(PASS2). */ |
17763fd9 | 1683 | |
c00f8484 | 1684 | /* We get here if p points to one of the break characters or "" (i.e., |
1777feb0 | 1685 | string ended). */ |
17763fd9 EZ |
1686 | /* Save restart for next time around. */ |
1687 | p2 = p; | |
1688 | /* Restore argptr as it was on entry to this function. */ | |
1689 | *argptr = saved_arg2; | |
87b3ede8 DC |
1690 | /* PASS1: at this point p->"::fun" argptr->"AAA::inA::fun", |
1691 | p2->"::fun". */ | |
17763fd9 EZ |
1692 | |
1693 | /* All ready for next pass through the loop. */ | |
614b3b14 DC |
1694 | } /* while (1) */ |
1695 | ||
87b3ede8 | 1696 | |
1777feb0 | 1697 | /* Start of lookup in the symbol tables. */ |
87b3ede8 DC |
1698 | |
1699 | /* Lookup in the symbol table the substring between argptr and | |
1777feb0 | 1700 | p. Note, this call changes the value of argptr. */ |
87b3ede8 DC |
1701 | /* Before the call, argptr->"AAA::inA::fun", |
1702 | p->"", p2->"::fun". After the call: argptr->"fun", p, p2 | |
1703 | unchanged. */ | |
f8eba3c6 TT |
1704 | sym_classes = lookup_prefix_sym (argptr, p2, self->file_symtabs, |
1705 | &class_name); | |
1706 | make_cleanup (VEC_cleanup (symbolp), &sym_classes); | |
1707 | make_cleanup (xfree, class_name); | |
1708 | ||
1709 | /* If a class has been found, then we're in case 1 above. So we | |
1710 | look up "fun" as a method of those classes. */ | |
1711 | if (!VEC_empty (symbolp, sym_classes)) | |
87b3ede8 DC |
1712 | { |
1713 | /* Arg token is not digits => try it as a function name. | |
1714 | Find the next token (everything up to end or next | |
1715 | blank). */ | |
1716 | if (**argptr | |
1717 | && strchr (get_gdb_completer_quote_characters (), | |
1718 | **argptr) != NULL) | |
1719 | { | |
1720 | p = skip_quoted (*argptr); | |
1721 | *argptr = *argptr + 1; | |
1722 | } | |
1723 | else | |
1724 | { | |
1725 | /* At this point argptr->"fun". */ | |
94af9270 | 1726 | char *a; |
e0881a8e | 1727 | |
87b3ede8 | 1728 | p = *argptr; |
94af9270 KS |
1729 | while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':' |
1730 | && *p != '(') | |
87b3ede8 DC |
1731 | p++; |
1732 | /* At this point p->"". String ended. */ | |
12907978 KS |
1733 | /* Nope, C++ operators could have spaces in them |
1734 | ("foo::operator <" or "foo::operator delete []"). | |
1735 | I apologize, this is a bit hacky... */ | |
1736 | if (current_language->la_language == language_cplus | |
1737 | && *p == ' ' && p - 8 - *argptr + 1 > 0) | |
1738 | { | |
1739 | /* The above loop has already swallowed "operator". */ | |
1740 | p += cp_validate_operator (p - 8) - 8; | |
1741 | } | |
94af9270 | 1742 | |
c00f8484 | 1743 | /* Keep any important naming information. */ |
3d50dd94 | 1744 | p = keep_name_info (p, 1); |
87b3ede8 DC |
1745 | } |
1746 | ||
1747 | /* Allocate our own copy of the substring between argptr and | |
1777feb0 | 1748 | p. */ |
87b3ede8 DC |
1749 | copy = (char *) alloca (p - *argptr + 1); |
1750 | memcpy (copy, *argptr, p - *argptr); | |
1751 | copy[p - *argptr] = '\0'; | |
1752 | if (p != *argptr | |
1753 | && copy[p - *argptr - 1] | |
1754 | && strchr (get_gdb_completer_quote_characters (), | |
1755 | copy[p - *argptr - 1]) != NULL) | |
1756 | copy[p - *argptr - 1] = '\0'; | |
1757 | ||
1777feb0 | 1758 | /* At this point copy->"fun", p->"". */ |
87b3ede8 DC |
1759 | |
1760 | /* No line number may be specified. */ | |
f8eba3c6 | 1761 | *argptr = skip_spaces (p); |
87b3ede8 DC |
1762 | /* At this point arptr->"". */ |
1763 | ||
1777feb0 | 1764 | /* Look for copy as a method of sym_class. */ |
87b3ede8 DC |
1765 | /* At this point copy->"fun", sym_class is "AAA:inA", |
1766 | saved_arg->"AAA::inA::fun". This concludes the scanning of | |
1767 | the string for possible components matches. If we find it | |
1777feb0 | 1768 | here, we return. If not, and we are at the and of the string, |
87b3ede8 DC |
1769 | we'll lookup the whole string in the symbol tables. */ |
1770 | ||
f8eba3c6 TT |
1771 | values = find_method (self, saved_arg, copy, class_name, sym_classes); |
1772 | ||
1773 | do_cleanups (cleanup); | |
1774 | return values; | |
1777feb0 | 1775 | } /* End if symbol found. */ |
87b3ede8 DC |
1776 | |
1777 | ||
1778 | /* We couldn't find a class, so we're in case 2 above. We check the | |
f8eba3c6 TT |
1779 | entire name as a symbol instead. The simplest way to do this is |
1780 | to just throw an exception and let our caller fall through to | |
1781 | decode_variable. */ | |
87b3ede8 | 1782 | |
f8eba3c6 TT |
1783 | throw_error (NOT_FOUND_ERROR, _("see caller, this text doesn't matter")); |
1784 | } | |
c00f8484 | 1785 | |
f8eba3c6 TT |
1786 | /* An instance of this type is used when collecting prefix symbols for |
1787 | decode_compound. */ | |
17763fd9 | 1788 | |
f8eba3c6 TT |
1789 | struct decode_compound_collector |
1790 | { | |
1791 | /* The result vector. */ | |
1792 | VEC (symbolp) *symbols; | |
3a93a0c2 | 1793 | |
f8eba3c6 TT |
1794 | /* A hash table of all symbols we found. We use this to avoid |
1795 | adding any symbol more than once. */ | |
1796 | htab_t unique_syms; | |
1797 | }; | |
3a93a0c2 | 1798 | |
f8eba3c6 TT |
1799 | /* A callback for iterate_over_symbols that is used by |
1800 | lookup_prefix_sym to collect type symbols. */ | |
c00f8484 | 1801 | |
f8eba3c6 TT |
1802 | static int |
1803 | collect_one_symbol (struct symbol *sym, void *d) | |
1804 | { | |
1805 | struct decode_compound_collector *collector = d; | |
1806 | void **slot; | |
1807 | struct type *t; | |
614b3b14 | 1808 | |
f8eba3c6 | 1809 | if (SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
8e704927 | 1810 | return 1; /* Continue iterating. */ |
f8eba3c6 TT |
1811 | |
1812 | t = SYMBOL_TYPE (sym); | |
1813 | CHECK_TYPEDEF (t); | |
1814 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT | |
1815 | && TYPE_CODE (t) != TYPE_CODE_UNION | |
1816 | && TYPE_CODE (t) != TYPE_CODE_NAMESPACE) | |
8e704927 | 1817 | return 1; /* Continue iterating. */ |
614b3b14 | 1818 | |
f8eba3c6 TT |
1819 | slot = htab_find_slot (collector->unique_syms, sym, INSERT); |
1820 | if (!*slot) | |
1821 | { | |
1822 | *slot = sym; | |
1823 | VEC_safe_push (symbolp, collector->symbols, sym); | |
1824 | } | |
1825 | ||
8e704927 | 1826 | return 1; /* Continue iterating. */ |
f8eba3c6 | 1827 | } |
93d91629 DC |
1828 | |
1829 | /* Return the symbol corresponding to the substring of *ARGPTR ending | |
1830 | at P, allowing whitespace. Also, advance *ARGPTR past the symbol | |
1831 | name in question, the compound object separator ("::" or "."), and | |
17763fd9 | 1832 | whitespace. Note that *ARGPTR is changed whether or not the |
f8eba3c6 | 1833 | this call finds anything (i.e we return NULL). As an |
17763fd9 | 1834 | example, say ARGPTR is "AAA::inA::fun" and P is "::inA::fun". */ |
93d91629 | 1835 | |
f8eba3c6 TT |
1836 | static VEC (symbolp) * |
1837 | lookup_prefix_sym (char **argptr, char *p, VEC (symtab_p) *file_symtabs, | |
1838 | char **class_name) | |
93d91629 DC |
1839 | { |
1840 | char *p1; | |
1841 | char *copy; | |
f8eba3c6 TT |
1842 | int ix; |
1843 | struct symtab *elt; | |
1844 | struct decode_compound_collector collector; | |
1845 | struct cleanup *outer; | |
1846 | struct cleanup *cleanup; | |
1847 | struct block *search_block; | |
93d91629 DC |
1848 | |
1849 | /* Extract the class name. */ | |
1850 | p1 = p; | |
1851 | while (p != *argptr && p[-1] == ' ') | |
1852 | --p; | |
f8eba3c6 | 1853 | copy = (char *) xmalloc (p - *argptr + 1); |
93d91629 DC |
1854 | memcpy (copy, *argptr, p - *argptr); |
1855 | copy[p - *argptr] = 0; | |
f8eba3c6 TT |
1856 | *class_name = copy; |
1857 | outer = make_cleanup (xfree, copy); | |
93d91629 | 1858 | |
17763fd9 | 1859 | /* Discard the class name from the argptr. */ |
93d91629 | 1860 | p = p1 + (p1[0] == ':' ? 2 : 1); |
f8eba3c6 | 1861 | p = skip_spaces (p); |
93d91629 DC |
1862 | *argptr = p; |
1863 | ||
17763fd9 | 1864 | /* At this point p1->"::inA::fun", p->"inA::fun" copy->"AAA", |
1777feb0 | 1865 | argptr->"inA::fun". */ |
17763fd9 | 1866 | |
f8eba3c6 TT |
1867 | collector.symbols = NULL; |
1868 | make_cleanup (VEC_cleanup (symbolp), &collector.symbols); | |
e0881a8e | 1869 | |
f8eba3c6 TT |
1870 | collector.unique_syms = htab_create_alloc (1, htab_hash_pointer, |
1871 | htab_eq_pointer, NULL, | |
1872 | xcalloc, xfree); | |
1873 | cleanup = make_cleanup_htab_delete (collector.unique_syms); | |
e0881a8e | 1874 | |
f8eba3c6 TT |
1875 | for (ix = 0; VEC_iterate (symtab_p, file_symtabs, ix, elt); ++ix) |
1876 | { | |
1877 | if (elt == NULL) | |
1878 | { | |
1879 | iterate_over_all_matching_symtabs (copy, STRUCT_DOMAIN, | |
1880 | collect_one_symbol, &collector, | |
1881 | NULL); | |
1882 | iterate_over_all_matching_symtabs (copy, VAR_DOMAIN, | |
1883 | collect_one_symbol, &collector, | |
1884 | NULL); | |
1885 | } | |
1886 | else | |
1887 | { | |
1888 | struct block *search_block; | |
1889 | ||
1890 | /* Program spaces that are executing startup should have | |
1891 | been filtered out earlier. */ | |
1892 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
1893 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
1894 | search_block = get_search_block (elt); | |
1895 | LA_ITERATE_OVER_SYMBOLS (search_block, copy, STRUCT_DOMAIN, | |
1896 | collect_one_symbol, &collector); | |
1897 | LA_ITERATE_OVER_SYMBOLS (search_block, copy, VAR_DOMAIN, | |
1898 | collect_one_symbol, &collector); | |
1e5a1abc KS |
1899 | } |
1900 | } | |
1901 | ||
f8eba3c6 TT |
1902 | do_cleanups (cleanup); |
1903 | discard_cleanups (outer); | |
1904 | return collector.symbols; | |
93d91629 DC |
1905 | } |
1906 | ||
f8eba3c6 TT |
1907 | /* A qsort comparison function for symbols. The resulting order does |
1908 | not actually matter; we just need to be able to sort them so that | |
1909 | symbols with the same program space end up next to each other. */ | |
4224873a | 1910 | |
f8eba3c6 TT |
1911 | static int |
1912 | compare_symbols (const void *a, const void *b) | |
4224873a | 1913 | { |
f8eba3c6 TT |
1914 | struct symbol * const *sa = a; |
1915 | struct symbol * const *sb = b; | |
1916 | uintptr_t uia, uib; | |
1917 | ||
1918 | uia = (uintptr_t) SYMTAB_PSPACE (SYMBOL_SYMTAB (*sa)); | |
1919 | uib = (uintptr_t) SYMTAB_PSPACE (SYMBOL_SYMTAB (*sb)); | |
1920 | ||
1921 | if (uia < uib) | |
1922 | return -1; | |
1923 | if (uia > uib) | |
1924 | return 1; | |
1925 | ||
1926 | uia = (uintptr_t) *sa; | |
1927 | uib = (uintptr_t) *sb; | |
1928 | ||
1929 | if (uia < uib) | |
1930 | return -1; | |
1931 | if (uia > uib) | |
1932 | return 1; | |
1933 | ||
1934 | return 0; | |
1935 | } | |
1936 | ||
1937 | /* Look for all the matching instances of each symbol in NAMES. Only | |
1938 | instances from PSPACE are considered; other program spaces are | |
1939 | handled by our caller. If PSPACE is NULL, then all program spaces | |
1940 | are considered. Results are stored into INFO. */ | |
1941 | ||
1942 | static void | |
1943 | add_all_symbol_names_from_pspace (struct collect_info *info, | |
1944 | struct program_space *pspace, | |
1945 | VEC (const_char_ptr) *names) | |
1946 | { | |
1947 | int ix; | |
1948 | const char *iter; | |
1949 | ||
1950 | for (ix = 0; VEC_iterate (const_char_ptr, names, ix, iter); ++ix) | |
1951 | add_matching_symbols_to_info (iter, info, pspace); | |
1952 | } | |
1953 | ||
1954 | static void | |
1955 | find_superclass_methods (VEC (typep) *superclasses, | |
1956 | const char *name, | |
1957 | VEC (const_char_ptr) **result_names) | |
1958 | { | |
1959 | int old_len = VEC_length (const_char_ptr, *result_names); | |
1960 | VEC (typep) *iter_classes; | |
1961 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
1962 | ||
1963 | iter_classes = superclasses; | |
1964 | while (1) | |
1965 | { | |
1966 | VEC (typep) *new_supers = NULL; | |
1967 | int ix; | |
1968 | struct type *t; | |
1969 | ||
1970 | make_cleanup (VEC_cleanup (typep), &new_supers); | |
1971 | for (ix = 0; VEC_iterate (typep, iter_classes, ix, t); ++ix) | |
1972 | find_methods (t, name, result_names, &new_supers); | |
1973 | ||
1974 | if (VEC_length (const_char_ptr, *result_names) != old_len | |
1975 | || VEC_empty (typep, new_supers)) | |
1976 | break; | |
4224873a | 1977 | |
f8eba3c6 TT |
1978 | iter_classes = new_supers; |
1979 | } | |
4224873a | 1980 | |
f8eba3c6 TT |
1981 | do_cleanups (cleanup); |
1982 | } | |
1983 | ||
1984 | /* This finds the method COPY in the class whose type is given by one | |
1985 | of the symbols in SYM_CLASSES. */ | |
1986 | ||
1987 | static struct symtabs_and_lines | |
1988 | find_method (struct linespec_state *self, char *saved_arg, | |
1989 | char *copy, const char *class_name, VEC (symbolp) *sym_classes) | |
1990 | { | |
1991 | char *canon; | |
1992 | struct symbol *sym; | |
1993 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
1994 | int ix; | |
1995 | int last_result_len; | |
1996 | VEC (typep) *superclass_vec; | |
1997 | VEC (const_char_ptr) *result_names; | |
1998 | struct collect_info info; | |
1999 | char *name_iter; | |
4224873a | 2000 | |
f8eba3c6 TT |
2001 | /* NAME is typed by the user: it needs to be canonicalized before |
2002 | searching the symbol tables. */ | |
2003 | canon = cp_canonicalize_string_no_typedefs (copy); | |
2004 | if (canon != NULL) | |
4224873a | 2005 | { |
f8eba3c6 TT |
2006 | copy = canon; |
2007 | make_cleanup (xfree, copy); | |
2008 | } | |
4224873a | 2009 | |
f8eba3c6 TT |
2010 | /* Sort symbols so that symbols with the same program space are next |
2011 | to each other. */ | |
2012 | qsort (VEC_address (symbolp, sym_classes), | |
2013 | VEC_length (symbolp, sym_classes), | |
2014 | sizeof (symbolp), | |
2015 | compare_symbols); | |
2016 | ||
2017 | info.state = self; | |
2018 | info.result.sals = NULL; | |
2019 | info.result.nelts = 0; | |
f8eba3c6 TT |
2020 | |
2021 | /* Iterate over all the types, looking for the names of existing | |
2022 | methods matching COPY. If we cannot find a direct method in a | |
2023 | given program space, then we consider inherited methods; this is | |
2024 | not ideal (ideal would be to respect C++ hiding rules), but it | |
2025 | seems good enough and is what GDB has historically done. We only | |
2026 | need to collect the names because later we find all symbols with | |
2027 | those names. This loop is written in a somewhat funny way | |
2028 | because we collect data across the program space before deciding | |
2029 | what to do. */ | |
2030 | superclass_vec = NULL; | |
2031 | make_cleanup (VEC_cleanup (typep), &superclass_vec); | |
2032 | result_names = NULL; | |
2033 | make_cleanup (VEC_cleanup (const_char_ptr), &result_names); | |
2034 | last_result_len = 0; | |
2035 | for (ix = 0; VEC_iterate (symbolp, sym_classes, ix, sym); ++ix) | |
2036 | { | |
2037 | struct type *t; | |
2038 | struct program_space *pspace; | |
2039 | ||
2040 | /* Program spaces that are executing startup should have | |
2041 | been filtered out earlier. */ | |
2042 | gdb_assert (!SYMTAB_PSPACE (SYMBOL_SYMTAB (sym))->executing_startup); | |
2043 | pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
2044 | set_current_program_space (pspace); | |
2045 | t = check_typedef (SYMBOL_TYPE (sym)); | |
2046 | find_methods (t, copy, &result_names, &superclass_vec); | |
2047 | ||
2048 | /* Handle all items from a single program space at once; and be | |
2049 | sure not to miss the last batch. */ | |
2050 | if (ix == VEC_length (symbolp, sym_classes) - 1 | |
2051 | || (pspace | |
2052 | != SYMTAB_PSPACE (SYMBOL_SYMTAB (VEC_index (symbolp, sym_classes, | |
2053 | ix + 1))))) | |
4224873a | 2054 | { |
f8eba3c6 TT |
2055 | /* If we did not find a direct implementation anywhere in |
2056 | this program space, consider superclasses. */ | |
2057 | if (VEC_length (const_char_ptr, result_names) == last_result_len) | |
2058 | find_superclass_methods (superclass_vec, copy, &result_names); | |
2059 | ||
2060 | /* We have a list of candidate symbol names, so now we | |
2061 | iterate over the symbol tables looking for all | |
2062 | matches in this pspace. */ | |
2063 | add_all_symbol_names_from_pspace (&info, pspace, result_names); | |
2064 | ||
2065 | VEC_truncate (typep, superclass_vec, 0); | |
2066 | last_result_len = VEC_length (const_char_ptr, result_names); | |
4224873a | 2067 | } |
4224873a | 2068 | } |
f8eba3c6 TT |
2069 | |
2070 | if (info.result.nelts > 0) | |
4224873a | 2071 | { |
f8eba3c6 | 2072 | if (self->canonical) |
94af9270 | 2073 | { |
f8eba3c6 TT |
2074 | self->canonical->pre_expanded = 1; |
2075 | if (self->user_filename) | |
2076 | self->canonical->addr_string | |
2077 | = xstrprintf ("%s:%s", self->user_filename, saved_arg); | |
2078 | else | |
2079 | self->canonical->addr_string = xstrdup (saved_arg); | |
94af9270 KS |
2080 | } |
2081 | ||
f8eba3c6 TT |
2082 | do_cleanups (cleanup); |
2083 | ||
2084 | return info.result; | |
4224873a | 2085 | } |
f8eba3c6 TT |
2086 | |
2087 | if (copy[0] == '~') | |
2088 | cplusplus_error (saved_arg, | |
2089 | "the class `%s' does not have destructor defined\n", | |
2090 | class_name); | |
4224873a | 2091 | else |
f8eba3c6 TT |
2092 | cplusplus_error (saved_arg, |
2093 | "the class %s does not have any method named %s\n", | |
2094 | class_name, copy); | |
2095 | } | |
2096 | ||
2097 | \f | |
2098 | ||
2099 | /* This object is used when collecting all matching symtabs. */ | |
2100 | ||
2101 | struct symtab_collector | |
2102 | { | |
2103 | /* The result vector of symtabs. */ | |
2104 | VEC (symtab_p) *symtabs; | |
2105 | ||
2106 | /* This is used to ensure the symtabs are unique. */ | |
2107 | htab_t symtab_table; | |
2108 | }; | |
2109 | ||
2110 | /* Callback for iterate_over_symtabs. */ | |
2111 | ||
2112 | static int | |
2113 | add_symtabs_to_list (struct symtab *symtab, void *d) | |
2114 | { | |
2115 | struct symtab_collector *data = d; | |
2116 | void **slot; | |
2117 | ||
2118 | slot = htab_find_slot (data->symtab_table, symtab, INSERT); | |
2119 | if (!*slot) | |
4224873a | 2120 | { |
f8eba3c6 TT |
2121 | *slot = symtab; |
2122 | VEC_safe_push (symtab_p, data->symtabs, symtab); | |
4224873a | 2123 | } |
f8eba3c6 TT |
2124 | |
2125 | return 0; | |
4224873a DC |
2126 | } |
2127 | ||
f8eba3c6 TT |
2128 | /* Given a file name, return a VEC of all matching symtabs. */ |
2129 | ||
2130 | static VEC (symtab_p) * | |
2131 | collect_symtabs_from_filename (const char *file) | |
2132 | { | |
2133 | struct symtab_collector collector; | |
2134 | struct cleanup *cleanups; | |
2135 | struct program_space *pspace; | |
2136 | ||
2137 | collector.symtabs = NULL; | |
2138 | collector.symtab_table = htab_create (1, htab_hash_pointer, htab_eq_pointer, | |
2139 | NULL); | |
2140 | cleanups = make_cleanup_htab_delete (collector.symtab_table); | |
2141 | ||
2142 | /* Find that file's data. */ | |
2143 | ALL_PSPACES (pspace) | |
2144 | { | |
2145 | if (pspace->executing_startup) | |
2146 | continue; | |
2147 | ||
2148 | set_current_program_space (pspace); | |
2149 | iterate_over_symtabs (file, add_symtabs_to_list, &collector); | |
2150 | } | |
f3c39e76 | 2151 | |
f8eba3c6 TT |
2152 | do_cleanups (cleanups); |
2153 | return collector.symtabs; | |
2154 | } | |
2155 | ||
2156 | /* Return all the symtabs associated to the filename given by the | |
2157 | substring of *ARGPTR ending at P, and advance ARGPTR past that | |
2158 | filename. */ | |
f3c39e76 | 2159 | |
f8eba3c6 TT |
2160 | static VEC (symtab_p) * |
2161 | symtabs_from_filename (char **argptr, char *p, int is_quote_enclosed, | |
2162 | char **user_filename) | |
f3c39e76 DC |
2163 | { |
2164 | char *p1; | |
2165 | char *copy; | |
f8eba3c6 TT |
2166 | struct cleanup *outer; |
2167 | VEC (symtab_p) *result; | |
f3c39e76 DC |
2168 | |
2169 | p1 = p; | |
2170 | while (p != *argptr && p[-1] == ' ') | |
2171 | --p; | |
2172 | if ((*p == '"') && is_quote_enclosed) | |
2173 | --p; | |
f8eba3c6 TT |
2174 | copy = xmalloc (p - *argptr + 1); |
2175 | outer = make_cleanup (xfree, copy); | |
f3c39e76 | 2176 | memcpy (copy, *argptr, p - *argptr); |
a04257e6 | 2177 | /* It may have the ending quote right after the file name. */ |
0e0b460e KS |
2178 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') |
2179 | || copy[p - *argptr - 1] == '\'') | |
f3c39e76 DC |
2180 | copy[p - *argptr - 1] = 0; |
2181 | else | |
2182 | copy[p - *argptr] = 0; | |
2183 | ||
f8eba3c6 TT |
2184 | result = collect_symtabs_from_filename (copy); |
2185 | ||
2186 | if (VEC_empty (symtab_p, result)) | |
f3c39e76 | 2187 | { |
b96e2927 PA |
2188 | if (!have_full_symbols () && !have_partial_symbols ()) |
2189 | throw_error (NOT_FOUND_ERROR, | |
3e43a32a MS |
2190 | _("No symbol table is loaded. " |
2191 | "Use the \"file\" command.")); | |
109c3e39 | 2192 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), copy); |
f3c39e76 DC |
2193 | } |
2194 | ||
2195 | /* Discard the file name from the arg. */ | |
edb2aadf | 2196 | if (*p1 == '\0') |
f8eba3c6 TT |
2197 | *argptr = p1; |
2198 | else | |
2199 | *argptr = skip_spaces (p1 + 1); | |
2200 | ||
2201 | discard_cleanups (outer); | |
2202 | *user_filename = copy; | |
2203 | return result; | |
2204 | } | |
2205 | ||
2206 | /* A callback used by iterate_over_all_matching_symtabs that collects | |
2207 | symbols for find_function_symbols. */ | |
2208 | ||
2209 | static int | |
2210 | collect_function_symbols (struct symbol *sym, void *arg) | |
2211 | { | |
2212 | VEC (symbolp) **syms = arg; | |
f3c39e76 | 2213 | |
f8eba3c6 TT |
2214 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
2215 | VEC_safe_push (symbolp, *syms, sym); | |
2216 | ||
8e704927 | 2217 | return 1; /* Continue iterating. */ |
f3c39e76 DC |
2218 | } |
2219 | ||
9ef07c8c TT |
2220 | /* Look up a function symbol in *ARGPTR. If found, advance *ARGPTR |
2221 | and return the symbol. If not found, return NULL. */ | |
2222 | ||
f8eba3c6 TT |
2223 | static VEC (symbolp) * |
2224 | find_function_symbols (char **argptr, char *p, int is_quote_enclosed, | |
2225 | char **user_function) | |
9ef07c8c TT |
2226 | { |
2227 | char *p1; | |
2228 | char *copy; | |
f8eba3c6 | 2229 | VEC (symbolp) *result = NULL; |
9ef07c8c TT |
2230 | |
2231 | p1 = p; | |
2232 | while (p != *argptr && p[-1] == ' ') | |
2233 | --p; | |
2234 | if ((*p == '"') && is_quote_enclosed) | |
2235 | --p; | |
f8eba3c6 TT |
2236 | copy = (char *) xmalloc (p - *argptr + 1); |
2237 | *user_function = copy; | |
9ef07c8c TT |
2238 | memcpy (copy, *argptr, p - *argptr); |
2239 | /* It may have the ending quote right after the file name. */ | |
2240 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') | |
2241 | || copy[p - *argptr - 1] == '\'') | |
2242 | copy[p - *argptr - 1] = 0; | |
2243 | else | |
2244 | copy[p - *argptr] = 0; | |
2245 | ||
f8eba3c6 TT |
2246 | iterate_over_all_matching_symtabs (copy, VAR_DOMAIN, |
2247 | collect_function_symbols, &result, NULL); | |
9ef07c8c | 2248 | |
f8eba3c6 TT |
2249 | if (VEC_empty (symbolp, result)) |
2250 | VEC_free (symbolp, result); | |
2251 | else | |
2252 | { | |
2253 | /* Discard the file name from the arg. */ | |
2254 | *argptr = skip_spaces (p1 + 1); | |
2255 | } | |
9ef07c8c | 2256 | |
f8eba3c6 | 2257 | return result; |
9ef07c8c TT |
2258 | } |
2259 | ||
84fba31b DC |
2260 | \f |
2261 | ||
f8eba3c6 TT |
2262 | /* A helper for decode_all_digits that handles the 'list_mode' case. */ |
2263 | ||
2264 | static void | |
2265 | decode_digits_list_mode (struct linespec_state *self, | |
2266 | struct symtabs_and_lines *values, | |
2267 | struct symtab_and_line val) | |
2268 | { | |
2269 | int ix; | |
2270 | struct symtab *elt; | |
2271 | ||
2272 | gdb_assert (self->list_mode); | |
2273 | ||
2274 | for (ix = 0; VEC_iterate (symtab_p, self->file_symtabs, ix, elt); ++ix) | |
2275 | { | |
2276 | /* The logic above should ensure this. */ | |
2277 | gdb_assert (elt != NULL); | |
2278 | ||
2279 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2280 | ||
2281 | /* Simplistic search just for the list command. */ | |
2282 | val.symtab = find_line_symtab (elt, val.line, NULL, NULL); | |
2283 | if (val.symtab == NULL) | |
2284 | val.symtab = elt; | |
2285 | val.pspace = SYMTAB_PSPACE (elt); | |
2286 | val.pc = 0; | |
2287 | val.explicit_line = 1; | |
2288 | ||
2289 | add_sal_to_sals (self, values, &val, NULL); | |
2290 | } | |
2291 | } | |
2292 | ||
2293 | /* A helper for decode_all_digits that iterates over the symtabs, | |
2294 | adding lines to the VEC. */ | |
2295 | ||
2296 | static void | |
2297 | decode_digits_ordinary (struct linespec_state *self, | |
2298 | int line, | |
2299 | struct symtabs_and_lines *sals, | |
2300 | struct linetable_entry **best_entry) | |
2301 | { | |
2302 | int ix; | |
2303 | struct symtab *elt; | |
2304 | ||
2305 | for (ix = 0; VEC_iterate (symtab_p, self->file_symtabs, ix, elt); ++ix) | |
2306 | { | |
2307 | int i; | |
2308 | VEC (CORE_ADDR) *pcs; | |
2309 | CORE_ADDR pc; | |
2310 | ||
2311 | /* The logic above should ensure this. */ | |
2312 | gdb_assert (elt != NULL); | |
2313 | ||
2314 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2315 | ||
2316 | pcs = find_pcs_for_symtab_line (elt, line, best_entry); | |
2317 | for (i = 0; VEC_iterate (CORE_ADDR, pcs, i, pc); ++i) | |
2318 | { | |
2319 | struct symtab_and_line sal; | |
2320 | ||
2321 | init_sal (&sal); | |
2322 | sal.pspace = SYMTAB_PSPACE (elt); | |
2323 | sal.symtab = elt; | |
2324 | sal.line = line; | |
2325 | sal.pc = pc; | |
2326 | add_sal_to_sals_basic (sals, &sal); | |
2327 | } | |
2328 | ||
2329 | VEC_free (CORE_ADDR, pcs); | |
2330 | } | |
2331 | } | |
2332 | ||
84fba31b DC |
2333 | /* This decodes a line where the argument is all digits (possibly |
2334 | preceded by a sign). Q should point to the end of those digits; | |
2335 | the other arguments are as usual. */ | |
2336 | ||
2337 | static struct symtabs_and_lines | |
f8eba3c6 TT |
2338 | decode_all_digits (struct linespec_state *self, |
2339 | char **argptr, | |
2340 | char *q) | |
84fba31b DC |
2341 | { |
2342 | struct symtabs_and_lines values; | |
2343 | struct symtab_and_line val; | |
f8eba3c6 TT |
2344 | int use_default = 0; |
2345 | char *saved_arg = *argptr; | |
84fba31b DC |
2346 | |
2347 | enum sign | |
2348 | { | |
2349 | none, plus, minus | |
2350 | } | |
2351 | sign = none; | |
2352 | ||
84fba31b | 2353 | init_sal (&val); |
f8eba3c6 TT |
2354 | values.sals = NULL; |
2355 | values.nelts = 0; | |
6c95b8df | 2356 | |
84fba31b DC |
2357 | /* This is where we need to make sure that we have good defaults. |
2358 | We must guarantee that this section of code is never executed | |
2359 | when we are called with just a function name, since | |
2360 | set_default_source_symtab_and_line uses | |
a04257e6 | 2361 | select_source_symtab that calls us with such an argument. */ |
84fba31b | 2362 | |
f8eba3c6 TT |
2363 | if (VEC_length (symtab_p, self->file_symtabs) == 1 |
2364 | && VEC_index (symtab_p, self->file_symtabs, 0) == NULL) | |
84fba31b | 2365 | { |
f8eba3c6 TT |
2366 | set_current_program_space (self->program_space); |
2367 | ||
a04257e6 | 2368 | /* Make sure we have at least a default source file. */ |
84fba31b | 2369 | set_default_source_symtab_and_line (); |
f8eba3c6 TT |
2370 | initialize_defaults (&self->default_symtab, &self->default_line); |
2371 | VEC_pop (symtab_p, self->file_symtabs); | |
2372 | VEC_free (symtab_p, self->file_symtabs); | |
2373 | self->file_symtabs | |
2374 | = collect_symtabs_from_filename (self->default_symtab->filename); | |
2375 | use_default = 1; | |
84fba31b DC |
2376 | } |
2377 | ||
2378 | if (**argptr == '+') | |
2379 | sign = plus, (*argptr)++; | |
2380 | else if (**argptr == '-') | |
2381 | sign = minus, (*argptr)++; | |
2382 | val.line = atoi (*argptr); | |
2383 | switch (sign) | |
2384 | { | |
2385 | case plus: | |
2386 | if (q == *argptr) | |
2387 | val.line = 5; | |
f8eba3c6 TT |
2388 | if (use_default) |
2389 | val.line = self->default_line + val.line; | |
84fba31b DC |
2390 | break; |
2391 | case minus: | |
2392 | if (q == *argptr) | |
2393 | val.line = 15; | |
f8eba3c6 TT |
2394 | if (use_default) |
2395 | val.line = self->default_line - val.line; | |
84fba31b DC |
2396 | else |
2397 | val.line = 1; | |
2398 | break; | |
2399 | case none: | |
2400 | break; /* No need to adjust val.line. */ | |
2401 | } | |
2402 | ||
f8eba3c6 TT |
2403 | *argptr = skip_spaces (q); |
2404 | ||
2405 | if (self->list_mode) | |
2406 | decode_digits_list_mode (self, &values, val); | |
2407 | else | |
2408 | { | |
2409 | struct linetable_entry *best_entry = NULL; | |
2410 | int *filter; | |
2411 | struct block **blocks; | |
2412 | struct cleanup *cleanup; | |
2413 | struct symtabs_and_lines intermediate_results; | |
2414 | int i, j; | |
2415 | ||
2416 | intermediate_results.sals = NULL; | |
2417 | intermediate_results.nelts = 0; | |
2418 | ||
2419 | decode_digits_ordinary (self, val.line, &intermediate_results, | |
2420 | &best_entry); | |
2421 | if (intermediate_results.nelts == 0 && best_entry != NULL) | |
2422 | decode_digits_ordinary (self, best_entry->line, &intermediate_results, | |
2423 | &best_entry); | |
2424 | ||
2425 | cleanup = make_cleanup (xfree, intermediate_results.sals); | |
2426 | ||
2427 | /* For optimized code, compiler can scatter one source line | |
2428 | accross disjoint ranges of PC values, even when no duplicate | |
2429 | functions or inline functions are involved. For example, | |
2430 | 'for (;;)' inside non-template non-inline non-ctor-or-dtor | |
2431 | function can result in two PC ranges. In this case, we don't | |
2432 | want to set breakpoint on first PC of each range. To filter | |
2433 | such cases, we use containing blocks -- for each PC found | |
2434 | above we see if there are other PCs that are in the same | |
2435 | block. If yes, the other PCs are filtered out. */ | |
2436 | ||
2437 | filter = xmalloc (intermediate_results.nelts * sizeof (int)); | |
2438 | make_cleanup (xfree, filter); | |
2439 | blocks = xmalloc (intermediate_results.nelts * sizeof (struct block *)); | |
2440 | make_cleanup (xfree, blocks); | |
2441 | ||
2442 | for (i = 0; i < intermediate_results.nelts; ++i) | |
2443 | { | |
2444 | set_current_program_space (intermediate_results.sals[i].pspace); | |
2445 | ||
2446 | filter[i] = 1; | |
2447 | blocks[i] = block_for_pc_sect (intermediate_results.sals[i].pc, | |
2448 | intermediate_results.sals[i].section); | |
2449 | } | |
2450 | ||
2451 | for (i = 0; i < intermediate_results.nelts; ++i) | |
2452 | { | |
2453 | if (blocks[i] != NULL) | |
2454 | for (j = i + 1; j < intermediate_results.nelts; ++j) | |
2455 | { | |
2456 | if (blocks[j] == blocks[i]) | |
2457 | { | |
2458 | filter[j] = 0; | |
2459 | break; | |
2460 | } | |
2461 | } | |
2462 | } | |
2463 | ||
2464 | for (i = 0; i < intermediate_results.nelts; ++i) | |
2465 | if (filter[i]) | |
2466 | { | |
2467 | struct symbol *sym = (blocks[i] | |
2468 | ? block_containing_function (blocks[i]) | |
2469 | : NULL); | |
2470 | ||
2471 | if (self->funfirstline) | |
2472 | skip_prologue_sal (&intermediate_results.sals[i]); | |
2473 | /* Make sure the line matches the request, not what was | |
2474 | found. */ | |
2475 | intermediate_results.sals[i].line = val.line; | |
2476 | add_sal_to_sals (self, &values, &intermediate_results.sals[i], | |
2477 | sym ? SYMBOL_NATURAL_NAME (sym) : NULL); | |
2478 | } | |
2479 | ||
2480 | do_cleanups (cleanup); | |
2481 | } | |
2482 | ||
2483 | if (values.nelts == 0) | |
2484 | { | |
2485 | if (self->user_filename) | |
2486 | throw_error (NOT_FOUND_ERROR, _("No line %d in file \"%s\"."), | |
2487 | val.line, self->user_filename); | |
2488 | else | |
2489 | throw_error (NOT_FOUND_ERROR, _("No line %d in the current file."), | |
2490 | val.line); | |
2491 | } | |
2492 | ||
2493 | if (self->canonical) | |
2494 | { | |
2495 | char *copy = savestring (saved_arg, q - saved_arg); | |
2496 | ||
2497 | self->canonical->pre_expanded = 1; | |
2498 | gdb_assert (self->user_filename || use_default); | |
2499 | self->canonical->addr_string | |
2500 | = xstrprintf ("%s:%s", (self->user_filename | |
2501 | ? self->user_filename | |
2502 | : self->default_symtab->filename), | |
2503 | copy); | |
2504 | xfree (copy); | |
2505 | } | |
2506 | ||
84fba31b DC |
2507 | return values; |
2508 | } | |
f3c39e76 | 2509 | |
614b3b14 DC |
2510 | \f |
2511 | ||
14e91ac5 DC |
2512 | /* Decode a linespec starting with a dollar sign. */ |
2513 | ||
2514 | static struct symtabs_and_lines | |
f8eba3c6 | 2515 | decode_dollar (struct linespec_state *self, char *copy) |
14e91ac5 | 2516 | { |
4fa62494 | 2517 | LONGEST valx; |
14e91ac5 | 2518 | int index = 0; |
14e91ac5 DC |
2519 | struct symtabs_and_lines values; |
2520 | struct symtab_and_line val; | |
2521 | char *p; | |
2522 | struct symbol *sym; | |
14e91ac5 | 2523 | struct minimal_symbol *msymbol; |
f8eba3c6 TT |
2524 | int ix; |
2525 | struct symtab *elt; | |
14e91ac5 DC |
2526 | |
2527 | p = (copy[1] == '$') ? copy + 2 : copy + 1; | |
2528 | while (*p >= '0' && *p <= '9') | |
2529 | p++; | |
a04257e6 | 2530 | if (!*p) /* Reached end of token without hitting non-digit. */ |
14e91ac5 | 2531 | { |
a04257e6 | 2532 | /* We have a value history reference. */ |
4fa62494 | 2533 | struct value *val_history; |
e0881a8e | 2534 | |
14e91ac5 | 2535 | sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index); |
4fa62494 UW |
2536 | val_history = access_value_history ((copy[1] == '$') ? -index : index); |
2537 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
3e43a32a MS |
2538 | error (_("History values used in line " |
2539 | "specs must have integer values.")); | |
4fa62494 | 2540 | valx = value_as_long (val_history); |
14e91ac5 DC |
2541 | } |
2542 | else | |
2543 | { | |
2544 | /* Not all digits -- may be user variable/function or a | |
a04257e6 | 2545 | convenience variable. */ |
14e91ac5 | 2546 | |
f8eba3c6 TT |
2547 | volatile struct gdb_exception exc; |
2548 | ||
31aba06f DE |
2549 | /* Avoid "may be used uninitialized" warning. */ |
2550 | values.sals = NULL; | |
2551 | values.nelts = 0; | |
2552 | ||
f8eba3c6 TT |
2553 | TRY_CATCH (exc, RETURN_MASK_ERROR) |
2554 | { | |
2555 | values = decode_variable (self, copy); | |
2556 | } | |
2557 | ||
2558 | if (exc.reason == 0) | |
2559 | return values; | |
14e91ac5 | 2560 | |
f8eba3c6 TT |
2561 | if (exc.error != NOT_FOUND_ERROR) |
2562 | throw_exception (exc); | |
14e91ac5 | 2563 | |
a04257e6 | 2564 | /* Not a user variable or function -- must be convenience variable. */ |
4fa62494 | 2565 | if (!get_internalvar_integer (lookup_internalvar (copy + 1), &valx)) |
3e43a32a MS |
2566 | error (_("Convenience variables used in line " |
2567 | "specs must have integer values.")); | |
14e91ac5 DC |
2568 | } |
2569 | ||
2570 | init_sal (&val); | |
2571 | ||
f8eba3c6 TT |
2572 | values.sals = NULL; |
2573 | values.nelts = 0; | |
14e91ac5 | 2574 | |
f8eba3c6 TT |
2575 | for (ix = 0; VEC_iterate (symtab_p, self->file_symtabs, ix, elt); ++ix) |
2576 | { | |
2577 | if (elt == NULL) | |
2578 | { | |
2579 | elt = self->default_symtab; | |
2580 | set_current_program_space (self->program_space); | |
2581 | } | |
2582 | else | |
2583 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2584 | ||
2585 | /* Either history value or convenience value from above, in valx. */ | |
2586 | val.symtab = elt; | |
2587 | val.line = valx; | |
2588 | val.pc = 0; | |
2589 | val.pspace = elt ? SYMTAB_PSPACE (elt) : current_program_space; | |
2590 | ||
2591 | add_sal_to_sals (self, &values, &val, NULL); | |
2592 | } | |
14e91ac5 | 2593 | |
f8eba3c6 TT |
2594 | if (self->canonical) |
2595 | { | |
2596 | self->canonical->pre_expanded = 1; | |
2597 | if (self->user_filename) | |
2598 | self->canonical->addr_string = xstrprintf ("%s:%s", | |
2599 | self->user_filename, copy); | |
2600 | else | |
2601 | self->canonical->addr_string = xstrdup (copy); | |
2602 | } | |
14e91ac5 DC |
2603 | |
2604 | return values; | |
2605 | } | |
2606 | ||
bca02a8a DC |
2607 | \f |
2608 | ||
0f5238ed TT |
2609 | /* A helper for decode_line_1 that tries to find a label. The label |
2610 | is searched for in the current block. | |
f8eba3c6 | 2611 | FUNCTION_SYMBOLS is a list of the enclosing functions; or NULL if none |
9ef07c8c | 2612 | specified. |
0f5238ed TT |
2613 | COPY is the name of the label to find. |
2614 | CANONICAL is the same as the "canonical" argument to decode_line_1. | |
2615 | RESULT is a pointer to a symtabs_and_lines structure which will be | |
2616 | filled in on success. | |
2617 | This function returns 1 if a label was found, 0 otherwise. */ | |
2618 | ||
2619 | static int | |
f8eba3c6 TT |
2620 | decode_label (struct linespec_state *self, |
2621 | VEC (symbolp) *function_symbols, char *copy, | |
7efd8fc2 | 2622 | struct symtabs_and_lines *result) |
0f5238ed | 2623 | { |
f8eba3c6 TT |
2624 | struct symbol *fn_sym; |
2625 | int ix; | |
9ef07c8c | 2626 | |
f8eba3c6 | 2627 | if (function_symbols == NULL) |
9ef07c8c | 2628 | { |
f8eba3c6 TT |
2629 | struct block *block; |
2630 | struct symbol *sym; | |
2631 | struct symtab_and_line sal; | |
2632 | struct symtabs_and_lines values; | |
2633 | ||
2634 | values.nelts = 0; | |
2635 | values.sals = NULL; | |
2636 | ||
2637 | set_current_program_space (self->program_space); | |
2638 | block = get_search_block (NULL); | |
2639 | ||
9ef07c8c TT |
2640 | for (; |
2641 | block && !BLOCK_FUNCTION (block); | |
2642 | block = BLOCK_SUPERBLOCK (block)) | |
2643 | ; | |
2644 | if (!block) | |
2645 | return 0; | |
f8eba3c6 TT |
2646 | fn_sym = BLOCK_FUNCTION (block); |
2647 | ||
2648 | sym = lookup_symbol (copy, block, LABEL_DOMAIN, 0); | |
2649 | ||
2650 | if (sym == NULL) | |
2651 | return 0; | |
2652 | ||
2653 | symbol_to_sal (&sal, self->funfirstline, sym); | |
2654 | add_sal_to_sals (self, &values, &sal, | |
2655 | SYMBOL_NATURAL_NAME (fn_sym)); | |
2656 | ||
2657 | if (self->canonical) | |
2658 | { | |
2659 | self->canonical->special_display = 1; | |
2660 | self->canonical->addr_string | |
2661 | = xstrprintf ("%s:%s", SYMBOL_NATURAL_NAME (fn_sym), | |
2662 | copy); | |
2663 | } | |
2664 | ||
2665 | *result = values; | |
2666 | ||
2667 | return 1; | |
2668 | } | |
2669 | ||
2670 | result->sals = NULL; | |
2671 | result->nelts = 0; | |
2672 | ||
2673 | for (ix = 0; VEC_iterate (symbolp, function_symbols, ix, fn_sym); ++ix) | |
2674 | { | |
2675 | struct block *block; | |
2676 | struct symbol *sym; | |
2677 | ||
2678 | set_current_program_space (SYMTAB_PSPACE (SYMBOL_SYMTAB (fn_sym))); | |
2679 | block = SYMBOL_BLOCK_VALUE (fn_sym); | |
2680 | sym = lookup_symbol (copy, block, LABEL_DOMAIN, 0); | |
2681 | ||
2682 | if (sym != NULL) | |
2683 | { | |
2684 | struct symtab_and_line sal; | |
2685 | char *symname; | |
2686 | ||
2687 | symbol_to_sal (&sal, self->funfirstline, sym); | |
2688 | symname = xstrprintf ("%s:%s", | |
2689 | SYMBOL_NATURAL_NAME (fn_sym), | |
2690 | SYMBOL_NATURAL_NAME (sym)); | |
2691 | add_sal_to_sals (self, result, &sal, symname); | |
2692 | xfree (symname); | |
2693 | } | |
2694 | } | |
2695 | ||
2696 | if (self->canonical && result->nelts > 0) | |
2697 | { | |
2698 | self->canonical->pre_expanded = 1; | |
2699 | self->canonical->special_display = 1; | |
2700 | ||
2701 | gdb_assert (self->user_function); | |
2702 | self->canonical->addr_string | |
2703 | = xstrprintf ("%s:%s", self->user_function, copy); | |
2704 | } | |
2705 | ||
2706 | return result->nelts > 0; | |
2707 | } | |
2708 | ||
2709 | /* A callback used to possibly add a symbol to the results. */ | |
2710 | ||
2711 | static int | |
2712 | collect_symbols (struct symbol *sym, void *data) | |
2713 | { | |
2714 | struct collect_info *info = data; | |
2715 | struct symtab_and_line sal; | |
2716 | ||
07fea4b4 TT |
2717 | if (symbol_to_sal (&sal, info->state->funfirstline, sym) |
2718 | && maybe_add_address (info->state->addr_set, | |
2719 | SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)), | |
2720 | sal.pc)) | |
f8eba3c6 TT |
2721 | add_sal_to_sals (info->state, &info->result, &sal, |
2722 | SYMBOL_NATURAL_NAME (sym)); | |
2723 | ||
8e704927 | 2724 | return 1; /* Continue iterating. */ |
f8eba3c6 TT |
2725 | } |
2726 | ||
2727 | /* We've found a minimal symbol MSYMBOL to associate with our | |
2728 | linespec; add it to the result symtabs_and_lines. */ | |
2729 | ||
2730 | static void | |
2731 | minsym_found (struct linespec_state *self, struct objfile *objfile, | |
2732 | struct minimal_symbol *msymbol, | |
2733 | struct symtabs_and_lines *result) | |
2734 | { | |
2735 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
2736 | CORE_ADDR pc; | |
2737 | struct symtab_and_line sal; | |
2738 | ||
2739 | sal = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol), | |
2740 | (struct obj_section *) 0, 0); | |
2741 | sal.section = SYMBOL_OBJ_SECTION (msymbol); | |
2742 | ||
2743 | /* The minimal symbol might point to a function descriptor; | |
2744 | resolve it to the actual code address instead. */ | |
2745 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, ¤t_target); | |
2746 | if (pc != sal.pc) | |
2747 | sal = find_pc_sect_line (pc, NULL, 0); | |
2748 | ||
2749 | if (self->funfirstline) | |
2750 | skip_prologue_sal (&sal); | |
2751 | ||
07fea4b4 TT |
2752 | if (maybe_add_address (self->addr_set, objfile->pspace, sal.pc)) |
2753 | add_sal_to_sals (self, result, &sal, SYMBOL_NATURAL_NAME (msymbol)); | |
f8eba3c6 TT |
2754 | } |
2755 | ||
39b856a4 TT |
2756 | /* A helper struct which just holds a minimal symbol and the object |
2757 | file from which it came. */ | |
f8eba3c6 | 2758 | |
39b856a4 | 2759 | typedef struct minsym_and_objfile |
f8eba3c6 | 2760 | { |
39b856a4 TT |
2761 | struct minimal_symbol *minsym; |
2762 | struct objfile *objfile; | |
2763 | } minsym_and_objfile_d; | |
f8eba3c6 | 2764 | |
39b856a4 TT |
2765 | DEF_VEC_O (minsym_and_objfile_d); |
2766 | ||
2767 | /* A helper struct to pass some data through | |
2768 | iterate_over_minimal_symbols. */ | |
2769 | ||
2770 | struct collect_minsyms | |
2771 | { | |
2772 | /* The objfile we're examining. */ | |
2773 | struct objfile *objfile; | |
2774 | ||
2775 | /* The funfirstline setting from the initial call. */ | |
2776 | int funfirstline; | |
2777 | ||
095bcf5e JB |
2778 | /* The list_mode setting from the initial call. */ |
2779 | int list_mode; | |
2780 | ||
39b856a4 TT |
2781 | /* The resulting symbols. */ |
2782 | VEC (minsym_and_objfile_d) *msyms; | |
2783 | }; | |
2784 | ||
2785 | /* A helper function to classify a minimal_symbol_type according to | |
2786 | priority. */ | |
2787 | ||
2788 | static int | |
2789 | classify_mtype (enum minimal_symbol_type t) | |
2790 | { | |
2791 | switch (t) | |
f8eba3c6 | 2792 | { |
39b856a4 TT |
2793 | case mst_file_text: |
2794 | case mst_file_data: | |
2795 | case mst_file_bss: | |
2796 | /* Intermediate priority. */ | |
2797 | return 1; | |
2798 | ||
2799 | case mst_solib_trampoline: | |
2800 | /* Lowest priority. */ | |
2801 | return 2; | |
2802 | ||
2803 | default: | |
2804 | /* Highest priority. */ | |
2805 | return 0; | |
f8eba3c6 | 2806 | } |
39b856a4 TT |
2807 | } |
2808 | ||
2809 | /* Callback for qsort that sorts symbols by priority. */ | |
2810 | ||
2811 | static int | |
2812 | compare_msyms (const void *a, const void *b) | |
2813 | { | |
2814 | const minsym_and_objfile_d *moa = a; | |
2815 | const minsym_and_objfile_d *mob = b; | |
2816 | enum minimal_symbol_type ta = MSYMBOL_TYPE (moa->minsym); | |
2817 | enum minimal_symbol_type tb = MSYMBOL_TYPE (mob->minsym); | |
2818 | ||
2819 | return classify_mtype (ta) - classify_mtype (tb); | |
2820 | } | |
2821 | ||
2822 | /* Callback for iterate_over_minimal_symbols that adds the symbol to | |
2823 | the result. */ | |
2824 | ||
2825 | static void | |
2826 | add_minsym (struct minimal_symbol *minsym, void *d) | |
2827 | { | |
2828 | struct collect_minsyms *info = d; | |
2829 | minsym_and_objfile_d mo; | |
2830 | ||
095bcf5e JB |
2831 | /* Exclude data symbols when looking for breakpoint locations. */ |
2832 | if (!info->list_mode) | |
2833 | switch (minsym->type) | |
2834 | { | |
2835 | case mst_slot_got_plt: | |
2836 | case mst_data: | |
2837 | case mst_bss: | |
2838 | case mst_abs: | |
2839 | case mst_file_data: | |
2840 | case mst_file_bss: | |
1a2da5ee JB |
2841 | { |
2842 | /* Make sure this minsym is not a function descriptor | |
2843 | before we decide to discard it. */ | |
2844 | struct gdbarch *gdbarch = info->objfile->gdbarch; | |
2845 | CORE_ADDR addr = gdbarch_convert_from_func_ptr_addr | |
2846 | (gdbarch, SYMBOL_VALUE_ADDRESS (minsym), | |
2847 | ¤t_target); | |
2848 | ||
2849 | if (addr == SYMBOL_VALUE_ADDRESS (minsym)) | |
2850 | return; | |
2851 | } | |
095bcf5e JB |
2852 | } |
2853 | ||
39b856a4 TT |
2854 | mo.minsym = minsym; |
2855 | mo.objfile = info->objfile; | |
2856 | VEC_safe_push (minsym_and_objfile_d, info->msyms, &mo); | |
f8eba3c6 TT |
2857 | } |
2858 | ||
2859 | /* Search minimal symbols in all objfiles for NAME. If SEARCH_PSPACE | |
2860 | is not NULL, the search is restricted to just that program | |
2861 | space. */ | |
2862 | ||
2863 | static void | |
2864 | search_minsyms_for_name (struct collect_info *info, const char *name, | |
2865 | struct program_space *search_pspace) | |
2866 | { | |
2867 | struct objfile *objfile; | |
2868 | struct program_space *pspace; | |
2869 | ||
2870 | ALL_PSPACES (pspace) | |
2871 | { | |
39b856a4 TT |
2872 | struct collect_minsyms local; |
2873 | struct cleanup *cleanup; | |
2874 | ||
f8eba3c6 TT |
2875 | if (search_pspace != NULL && search_pspace != pspace) |
2876 | continue; | |
2877 | if (pspace->executing_startup) | |
2878 | continue; | |
2879 | ||
2880 | set_current_program_space (pspace); | |
2881 | ||
39b856a4 TT |
2882 | memset (&local, 0, sizeof (local)); |
2883 | local.funfirstline = info->state->funfirstline; | |
095bcf5e | 2884 | local.list_mode = info->state->list_mode; |
39b856a4 TT |
2885 | |
2886 | cleanup = make_cleanup (VEC_cleanup (minsym_and_objfile_d), | |
2887 | &local.msyms); | |
2888 | ||
f8eba3c6 TT |
2889 | ALL_OBJFILES (objfile) |
2890 | { | |
39b856a4 TT |
2891 | local.objfile = objfile; |
2892 | iterate_over_minimal_symbols (objfile, name, add_minsym, &local); | |
9ef07c8c | 2893 | } |
39b856a4 TT |
2894 | |
2895 | if (!VEC_empty (minsym_and_objfile_d, local.msyms)) | |
2896 | { | |
2897 | int classification; | |
2898 | int ix; | |
2899 | minsym_and_objfile_d *item; | |
2900 | ||
2901 | qsort (VEC_address (minsym_and_objfile_d, local.msyms), | |
2902 | VEC_length (minsym_and_objfile_d, local.msyms), | |
2903 | sizeof (minsym_and_objfile_d), | |
2904 | compare_msyms); | |
2905 | ||
2906 | /* Now the minsyms are in classification order. So, we walk | |
2907 | over them and process just the minsyms with the same | |
2908 | classification as the very first minsym in the list. */ | |
2909 | item = VEC_index (minsym_and_objfile_d, local.msyms, 0); | |
2910 | classification = classify_mtype (MSYMBOL_TYPE (item->minsym)); | |
2911 | ||
2912 | for (ix = 0; | |
2913 | VEC_iterate (minsym_and_objfile_d, local.msyms, ix, item); | |
2914 | ++ix) | |
2915 | { | |
2916 | if (classify_mtype (MSYMBOL_TYPE (item->minsym)) != classification) | |
2917 | break; | |
2918 | ||
07fea4b4 TT |
2919 | minsym_found (info->state, item->objfile, item->minsym, |
2920 | &info->result); | |
39b856a4 TT |
2921 | } |
2922 | } | |
2923 | ||
2924 | do_cleanups (cleanup); | |
f8eba3c6 TT |
2925 | } |
2926 | } | |
2927 | ||
2928 | /* A helper function to add all symbols matching NAME to INFO. If | |
2929 | PSPACE is not NULL, the search is restricted to just that program | |
2930 | space. */ | |
0f5238ed | 2931 | |
f8eba3c6 TT |
2932 | static void |
2933 | add_matching_symbols_to_info (const char *name, | |
2934 | struct collect_info *info, | |
2935 | struct program_space *pspace) | |
2936 | { | |
2937 | int ix; | |
2938 | struct symtab *elt; | |
0f5238ed | 2939 | |
f8eba3c6 TT |
2940 | for (ix = 0; VEC_iterate (symtab_p, info->state->file_symtabs, ix, elt); ++ix) |
2941 | { | |
2942 | struct symbol *sym; | |
0f5238ed | 2943 | |
f8eba3c6 TT |
2944 | if (elt == NULL) |
2945 | { | |
2946 | iterate_over_all_matching_symtabs (name, VAR_DOMAIN, | |
2947 | collect_symbols, info, | |
2948 | pspace); | |
2949 | search_minsyms_for_name (info, name, pspace); | |
2950 | } | |
2951 | else if (pspace == NULL || pspace == SYMTAB_PSPACE (elt)) | |
2952 | { | |
2953 | /* Program spaces that are executing startup should have | |
2954 | been filtered out earlier. */ | |
2955 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
2956 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2957 | LA_ITERATE_OVER_SYMBOLS (get_search_block (elt), name, | |
2958 | VAR_DOMAIN, collect_symbols, | |
2959 | info); | |
2960 | } | |
2961 | } | |
0f5238ed TT |
2962 | } |
2963 | ||
88d262ca | 2964 | /* Decode a linespec that's a variable. If FILE_SYMTAB is non-NULL, |
58438ac1 | 2965 | look in that symtab's static variables first. */ |
bca02a8a DC |
2966 | |
2967 | static struct symtabs_and_lines | |
f8eba3c6 | 2968 | decode_variable (struct linespec_state *self, char *copy) |
bca02a8a | 2969 | { |
f8eba3c6 TT |
2970 | struct collect_info info; |
2971 | const char *lookup_name; | |
2972 | char *canon; | |
3a93a0c2 | 2973 | struct cleanup *cleanup; |
bca02a8a | 2974 | |
f8eba3c6 TT |
2975 | info.state = self; |
2976 | info.result.sals = NULL; | |
2977 | info.result.nelts = 0; | |
f8eba3c6 TT |
2978 | |
2979 | cleanup = demangle_for_lookup (copy, current_language->la_language, | |
2980 | &lookup_name); | |
2981 | if (current_language->la_language == language_ada) | |
3a93a0c2 | 2982 | { |
f8eba3c6 TT |
2983 | /* In Ada, the symbol lookups are performed using the encoded |
2984 | name rather than the demangled name. */ | |
2985 | lookup_name = ada_name_for_lookup (copy); | |
2986 | make_cleanup (xfree, (void *) lookup_name); | |
3a93a0c2 KS |
2987 | } |
2988 | ||
f8eba3c6 TT |
2989 | canon = cp_canonicalize_string_no_typedefs (lookup_name); |
2990 | if (canon != NULL) | |
3a93a0c2 | 2991 | { |
f8eba3c6 TT |
2992 | make_cleanup (xfree, canon); |
2993 | lookup_name = canon; | |
3a93a0c2 | 2994 | } |
bca02a8a | 2995 | |
f8eba3c6 | 2996 | add_matching_symbols_to_info (lookup_name, &info, NULL); |
bca02a8a | 2997 | |
f8eba3c6 TT |
2998 | if (info.result.nelts > 0) |
2999 | { | |
3000 | if (self->canonical) | |
3001 | { | |
3002 | self->canonical->pre_expanded = 1; | |
3003 | if (self->user_filename) | |
3004 | self->canonical->addr_string | |
3005 | = xstrprintf ("%s:%s", self->user_filename, copy); | |
3006 | else | |
3007 | self->canonical->addr_string = xstrdup (copy); | |
3008 | } | |
3009 | return info.result; | |
3010 | } | |
bca02a8a | 3011 | |
b96e2927 PA |
3012 | if (!have_full_symbols () |
3013 | && !have_partial_symbols () | |
3014 | && !have_minimal_symbols ()) | |
3015 | throw_error (NOT_FOUND_ERROR, | |
3016 | _("No symbol table is loaded. Use the \"file\" command.")); | |
f8eba3c6 TT |
3017 | if (self->user_filename) |
3018 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined in \"%s\"."), | |
3019 | copy, self->user_filename); | |
3020 | else | |
3021 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined."), copy); | |
bca02a8a DC |
3022 | } |
3023 | ||
3024 | ||
14e91ac5 DC |
3025 | \f |
3026 | ||
413dad4d DC |
3027 | /* Now come some functions that are called from multiple places within |
3028 | decode_line_1. */ | |
3029 | ||
f8eba3c6 TT |
3030 | static int |
3031 | symbol_to_sal (struct symtab_and_line *result, | |
3032 | int funfirstline, struct symbol *sym) | |
413dad4d | 3033 | { |
413dad4d | 3034 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
50641945 | 3035 | { |
f8eba3c6 TT |
3036 | *result = find_function_start_sal (sym, funfirstline); |
3037 | return 1; | |
50641945 | 3038 | } |
413dad4d DC |
3039 | else |
3040 | { | |
62853458 | 3041 | if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0) |
413dad4d | 3042 | { |
f8eba3c6 TT |
3043 | init_sal (result); |
3044 | result->symtab = SYMBOL_SYMTAB (sym); | |
3045 | result->line = SYMBOL_LINE (sym); | |
3046 | result->pc = SYMBOL_VALUE_ADDRESS (sym); | |
3047 | result->pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
3048 | result->explicit_pc = 1; | |
3049 | return 1; | |
413dad4d | 3050 | } |
62853458 | 3051 | else if (funfirstline) |
dcf9f4ab | 3052 | { |
f8eba3c6 | 3053 | /* Nothing. */ |
dcf9f4ab | 3054 | } |
62853458 TT |
3055 | else if (SYMBOL_LINE (sym) != 0) |
3056 | { | |
3057 | /* We know its line number. */ | |
f8eba3c6 TT |
3058 | init_sal (result); |
3059 | result->symtab = SYMBOL_SYMTAB (sym); | |
3060 | result->line = SYMBOL_LINE (sym); | |
3061 | result->pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
3062 | return 1; | |
62853458 | 3063 | } |
413dad4d | 3064 | } |
f8eba3c6 TT |
3065 | |
3066 | return 0; | |
413dad4d | 3067 | } |
50641945 | 3068 | |
f8eba3c6 | 3069 | /* See the comment in linespec.h. */ |
50641945 | 3070 | |
f8eba3c6 TT |
3071 | void |
3072 | init_linespec_result (struct linespec_result *lr) | |
413dad4d | 3073 | { |
f8eba3c6 TT |
3074 | memset (lr, 0, sizeof (*lr)); |
3075 | } | |
413dad4d | 3076 | |
f8eba3c6 | 3077 | /* See the comment in linespec.h. */ |
bccdca4a | 3078 | |
f8eba3c6 TT |
3079 | void |
3080 | destroy_linespec_result (struct linespec_result *ls) | |
3081 | { | |
3082 | int i; | |
3083 | struct linespec_sals *lsal; | |
bccdca4a | 3084 | |
f8eba3c6 TT |
3085 | xfree (ls->addr_string); |
3086 | for (i = 0; VEC_iterate (linespec_sals, ls->sals, i, lsal); ++i) | |
3087 | { | |
3088 | xfree (lsal->canonical); | |
3089 | xfree (lsal->sals.sals); | |
3090 | } | |
3091 | VEC_free (linespec_sals, ls->sals); | |
3092 | } | |
e48883f7 | 3093 | |
f8eba3c6 TT |
3094 | /* Cleanup function for a linespec_result. */ |
3095 | ||
3096 | static void | |
3097 | cleanup_linespec_result (void *a) | |
3098 | { | |
3099 | destroy_linespec_result (a); | |
50641945 | 3100 | } |
7efd8fc2 | 3101 | |
f8eba3c6 TT |
3102 | /* See the comment in linespec.h. */ |
3103 | ||
3104 | struct cleanup * | |
3105 | make_cleanup_destroy_linespec_result (struct linespec_result *ls) | |
7efd8fc2 | 3106 | { |
f8eba3c6 | 3107 | return make_cleanup (cleanup_linespec_result, ls); |
7efd8fc2 | 3108 | } |