Commit | Line | Data |
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50641945 | 1 | /* Parser for linespec for the GNU debugger, GDB. |
05ff989b | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
0fb0cc75 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, |
7b6bb8da | 5 | 2009, 2010, 2011 Free Software Foundation, Inc. |
50641945 FN |
6 | |
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
50641945 FN |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
50641945 FN |
21 | |
22 | #include "defs.h" | |
23 | #include "symtab.h" | |
c5f0f3d0 FN |
24 | #include "frame.h" |
25 | #include "command.h" | |
50641945 FN |
26 | #include "symfile.h" |
27 | #include "objfiles.h" | |
0378c332 | 28 | #include "source.h" |
50641945 | 29 | #include "demangle.h" |
c5f0f3d0 FN |
30 | #include "value.h" |
31 | #include "completer.h" | |
015a42b4 | 32 | #include "cp-abi.h" |
12907978 | 33 | #include "cp-support.h" |
c38da1af | 34 | #include "parser-defs.h" |
fe898f56 | 35 | #include "block.h" |
d2630e69 | 36 | #include "objc-lang.h" |
b9362cc7 | 37 | #include "linespec.h" |
05ff989b | 38 | #include "exceptions.h" |
53c5240f | 39 | #include "language.h" |
dc67126b NR |
40 | #include "interps.h" |
41 | #include "mi/mi-cmds.h" | |
bccdca4a | 42 | #include "target.h" |
94af9270 | 43 | #include "arch-utils.h" |
c00f8484 KS |
44 | #include <ctype.h> |
45 | #include "cli/cli-utils.h" | |
731971ed | 46 | #include "filenames.h" |
f8eba3c6 TT |
47 | #include "ada-lang.h" |
48 | ||
49 | typedef struct symtab *symtab_p; | |
50 | DEF_VEC_P (symtab_p); | |
51 | ||
52 | typedef struct symbol *symbolp; | |
53 | DEF_VEC_P (symbolp); | |
54 | ||
55 | typedef struct type *typep; | |
56 | DEF_VEC_P (typep); | |
57 | ||
58 | /* An address entry is used to ensure that any given location is only | |
59 | added to the result a single time. It holds an address and the | |
60 | program space from which the address came. */ | |
61 | ||
62 | struct address_entry | |
63 | { | |
64 | struct program_space *pspace; | |
65 | CORE_ADDR addr; | |
66 | }; | |
67 | ||
68 | /* An instance of this is used to keep all state while linespec | |
69 | operates. This instance is passed around as a 'this' pointer to | |
70 | the various implementation methods. */ | |
71 | ||
72 | struct linespec_state | |
73 | { | |
74 | /* The program space as seen when the module was entered. */ | |
75 | struct program_space *program_space; | |
76 | ||
77 | /* The default symtab to use, if no other symtab is specified. */ | |
78 | struct symtab *default_symtab; | |
79 | ||
80 | /* The default line to use. */ | |
81 | int default_line; | |
82 | ||
83 | /* If the linespec started with "FILE:", this holds all the matching | |
84 | symtabs. Otherwise, it will hold a single NULL entry, meaning | |
85 | that the default symtab should be used. */ | |
86 | VEC (symtab_p) *file_symtabs; | |
87 | ||
88 | /* If the linespec started with "FILE:", this holds an xmalloc'd | |
89 | copy of "FILE". */ | |
90 | char *user_filename; | |
91 | ||
92 | /* If the linespec is "FUNCTION:LABEL", this holds an xmalloc'd copy | |
93 | of "FUNCTION". */ | |
94 | char *user_function; | |
95 | ||
96 | /* The 'funfirstline' value that was passed in to decode_line_1 or | |
97 | decode_line_full. */ | |
98 | int funfirstline; | |
99 | ||
100 | /* Nonzero if we are running in 'list' mode; see decode_line_list. */ | |
101 | int list_mode; | |
102 | ||
103 | /* The 'canonical' value passed to decode_line_full, or NULL. */ | |
104 | struct linespec_result *canonical; | |
105 | ||
106 | /* Canonical strings that mirror the symtabs_and_lines result. */ | |
107 | char **canonical_names; | |
108 | ||
109 | /* This is a set of address_entry objects which is used to prevent | |
110 | duplicate symbols from being entered into the result. */ | |
111 | htab_t addr_set; | |
112 | }; | |
113 | ||
114 | /* This is a helper object that is used when collecting symbols into a | |
115 | result. */ | |
116 | ||
117 | struct collect_info | |
118 | { | |
119 | /* The linespec object in use. */ | |
120 | struct linespec_state *state; | |
121 | ||
122 | /* The result being accumulated. */ | |
123 | struct symtabs_and_lines result; | |
f8eba3c6 | 124 | }; |
50641945 | 125 | |
1777feb0 | 126 | /* Prototypes for local functions. */ |
50641945 | 127 | |
44fe14ab DC |
128 | static void initialize_defaults (struct symtab **default_symtab, |
129 | int *default_line); | |
130 | ||
f8eba3c6 TT |
131 | static struct symtabs_and_lines decode_indirect (struct linespec_state *self, |
132 | char **argptr); | |
44fe14ab | 133 | |
0960f083 DC |
134 | static char *locate_first_half (char **argptr, int *is_quote_enclosed); |
135 | ||
f8eba3c6 TT |
136 | static struct symtabs_and_lines decode_objc (struct linespec_state *self, |
137 | char **argptr); | |
d2630e69 | 138 | |
f8eba3c6 TT |
139 | static struct symtabs_and_lines decode_compound (struct linespec_state *self, |
140 | char **argptr, | |
614b3b14 | 141 | char *saved_arg, |
58438ac1 | 142 | char *p); |
614b3b14 | 143 | |
f8eba3c6 TT |
144 | static VEC (symbolp) *lookup_prefix_sym (char **argptr, char *p, |
145 | VEC (symtab_p) *, | |
146 | char **); | |
93d91629 | 147 | |
f8eba3c6 | 148 | static struct symtabs_and_lines find_method (struct linespec_state *self, |
4224873a DC |
149 | char *saved_arg, |
150 | char *copy, | |
f8eba3c6 TT |
151 | const char *class_name, |
152 | VEC (symbolp) *sym_classes); | |
4224873a | 153 | |
c25c4a8b JK |
154 | static void cplusplus_error (const char *name, const char *fmt, ...) |
155 | ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (2, 3); | |
50641945 | 156 | |
f8eba3c6 | 157 | static char *find_toplevel_char (char *s, char c); |
50641945 | 158 | |
f8eba3c6 | 159 | static int is_objc_method_format (const char *s); |
50641945 | 160 | |
f8eba3c6 TT |
161 | static VEC (symtab_p) *symtabs_from_filename (char **argptr, |
162 | char *p, int is_quote_enclosed, | |
163 | char **user_filename); | |
aee8d8ba | 164 | |
f8eba3c6 TT |
165 | static VEC (symbolp) *find_function_symbols (char **argptr, char *p, |
166 | int is_quote_enclosed, | |
167 | char **user_function); | |
aee8d8ba | 168 | |
f8eba3c6 TT |
169 | static struct symtabs_and_lines decode_all_digits (struct linespec_state *self, |
170 | char **argptr, | |
171 | char *q); | |
50641945 | 172 | |
f8eba3c6 TT |
173 | static struct symtabs_and_lines decode_dollar (struct linespec_state *self, |
174 | char *copy); | |
50641945 | 175 | |
f8eba3c6 TT |
176 | static int decode_label (struct linespec_state *self, |
177 | VEC (symbolp) *function_symbols, | |
178 | char *copy, | |
179 | struct symtabs_and_lines *result); | |
180 | ||
181 | static struct symtabs_and_lines decode_variable (struct linespec_state *self, | |
182 | char *copy); | |
889f28e2 | 183 | |
f8eba3c6 TT |
184 | static int symbol_to_sal (struct symtab_and_line *result, |
185 | int funfirstline, struct symbol *sym); | |
50641945 | 186 | |
f8eba3c6 TT |
187 | static void add_matching_symbols_to_info (const char *name, |
188 | struct collect_info *info, | |
189 | struct program_space *pspace); | |
f3c39e76 | 190 | |
f8eba3c6 TT |
191 | static void add_all_symbol_names_from_pspace (struct collect_info *info, |
192 | struct program_space *pspace, | |
193 | VEC (const_char_ptr) *names); | |
9ef07c8c | 194 | |
f8eba3c6 | 195 | /* Helper functions. */ |
84fba31b | 196 | |
f8eba3c6 | 197 | /* Add SAL to SALS. */ |
14e91ac5 | 198 | |
f8eba3c6 TT |
199 | static void |
200 | add_sal_to_sals_basic (struct symtabs_and_lines *sals, | |
201 | struct symtab_and_line *sal) | |
202 | { | |
203 | ++sals->nelts; | |
204 | sals->sals = xrealloc (sals->sals, sals->nelts * sizeof (sals->sals[0])); | |
205 | sals->sals[sals->nelts - 1] = *sal; | |
206 | } | |
0f5238ed | 207 | |
f8eba3c6 TT |
208 | /* Add SAL to SALS, and also update SELF->CANONICAL_NAMES to reflect |
209 | the new sal, if needed. If not NULL, SYMNAME is the name of the | |
210 | symbol to use when constructing the new canonical name. */ | |
bca02a8a | 211 | |
f8eba3c6 TT |
212 | static void |
213 | add_sal_to_sals (struct linespec_state *self, | |
214 | struct symtabs_and_lines *sals, | |
215 | struct symtab_and_line *sal, | |
216 | const char *symname) | |
217 | { | |
218 | add_sal_to_sals_basic (sals, sal); | |
413dad4d | 219 | |
f8eba3c6 TT |
220 | if (self->canonical) |
221 | { | |
222 | char *canonical_name = NULL; | |
413dad4d | 223 | |
f8eba3c6 TT |
224 | self->canonical_names = xrealloc (self->canonical_names, |
225 | sals->nelts * sizeof (char *)); | |
226 | if (sal->symtab && sal->symtab->filename) | |
227 | { | |
228 | char *filename = sal->symtab->filename; | |
229 | ||
230 | /* Note that the filter doesn't have to be a valid linespec | |
231 | input. We only apply the ":LINE" treatment to Ada for | |
232 | the time being. */ | |
233 | if (symname != NULL && sal->line != 0 | |
234 | && current_language->la_language == language_ada) | |
235 | canonical_name = xstrprintf ("%s:%s:%d", filename, symname, | |
236 | sal->line); | |
237 | else if (symname != NULL) | |
238 | canonical_name = xstrprintf ("%s:%s", filename, symname); | |
239 | else | |
240 | canonical_name = xstrprintf ("%s:%d", filename, sal->line); | |
241 | } | |
242 | ||
243 | self->canonical_names[sals->nelts - 1] = canonical_name; | |
244 | } | |
245 | } | |
246 | ||
247 | /* A hash function for address_entry. */ | |
248 | ||
249 | static hashval_t | |
250 | hash_address_entry (const void *p) | |
251 | { | |
252 | const struct address_entry *aep = p; | |
04ca3c22 | 253 | hashval_t hash; |
f8eba3c6 | 254 | |
04ca3c22 AP |
255 | hash = iterative_hash_object (aep->pspace, 0); |
256 | return iterative_hash_object (aep->addr, hash); | |
f8eba3c6 TT |
257 | } |
258 | ||
259 | /* An equality function for address_entry. */ | |
260 | ||
261 | static int | |
262 | eq_address_entry (const void *a, const void *b) | |
263 | { | |
264 | const struct address_entry *aea = a; | |
265 | const struct address_entry *aeb = b; | |
266 | ||
267 | return aea->pspace == aeb->pspace && aea->addr == aeb->addr; | |
268 | } | |
269 | ||
270 | /* Check whether the address, represented by PSPACE and ADDR, is | |
271 | already in the set. If so, return 0. Otherwise, add it and return | |
272 | 1. */ | |
273 | ||
274 | static int | |
275 | maybe_add_address (htab_t set, struct program_space *pspace, CORE_ADDR addr) | |
276 | { | |
277 | struct address_entry e, *p; | |
278 | void **slot; | |
279 | ||
280 | e.pspace = pspace; | |
281 | e.addr = addr; | |
282 | slot = htab_find_slot (set, &e, INSERT); | |
283 | if (*slot) | |
284 | return 0; | |
285 | ||
286 | p = XNEW (struct address_entry); | |
287 | memcpy (p, &e, sizeof (struct address_entry)); | |
288 | *slot = p; | |
289 | ||
290 | return 1; | |
291 | } | |
50641945 | 292 | |
255e7dbf AC |
293 | /* Issue a helpful hint on using the command completion feature on |
294 | single quoted demangled C++ symbols as part of the completion | |
295 | error. */ | |
50641945 | 296 | |
c25c4a8b | 297 | static void |
255e7dbf | 298 | cplusplus_error (const char *name, const char *fmt, ...) |
50641945 | 299 | { |
255e7dbf | 300 | struct ui_file *tmp_stream; |
f3a5f1de | 301 | char *message; |
e0881a8e | 302 | |
255e7dbf AC |
303 | tmp_stream = mem_fileopen (); |
304 | make_cleanup_ui_file_delete (tmp_stream); | |
305 | ||
306 | { | |
307 | va_list args; | |
e0881a8e | 308 | |
255e7dbf AC |
309 | va_start (args, fmt); |
310 | vfprintf_unfiltered (tmp_stream, fmt, args); | |
311 | va_end (args); | |
312 | } | |
313 | ||
50641945 FN |
314 | while (*name == '\'') |
315 | name++; | |
255e7dbf AC |
316 | fprintf_unfiltered (tmp_stream, |
317 | ("Hint: try '%s<TAB> or '%s<ESC-?>\n" | |
318 | "(Note leading single quote.)"), | |
319 | name, name); | |
f3a5f1de | 320 | |
759ef836 PA |
321 | message = ui_file_xstrdup (tmp_stream, NULL); |
322 | make_cleanup (xfree, message); | |
323 | throw_error (NOT_FOUND_ERROR, "%s", message); | |
50641945 FN |
324 | } |
325 | ||
f8eba3c6 TT |
326 | /* A helper for iterate_over_all_matching_symtabs that is passed as a |
327 | callback to the expand_symtabs_matching method. */ | |
50641945 FN |
328 | |
329 | static int | |
f8eba3c6 TT |
330 | iterate_name_matcher (const struct language_defn *language, |
331 | const char *name, void *d) | |
50641945 | 332 | { |
f8eba3c6 | 333 | const char **dname = d; |
50641945 | 334 | |
f8eba3c6 TT |
335 | if (language->la_symbol_name_compare (name, *dname) == 0) |
336 | return 1; | |
337 | return 0; | |
338 | } | |
339 | ||
340 | /* A helper that walks over all matching symtabs in all objfiles and | |
341 | calls CALLBACK for each symbol matching NAME. If SEARCH_PSPACE is | |
342 | not NULL, then the search is restricted to just that program | |
343 | space. */ | |
344 | ||
345 | static void | |
346 | iterate_over_all_matching_symtabs (const char *name, | |
347 | const domain_enum domain, | |
348 | int (*callback) (struct symbol *, void *), | |
349 | void *data, | |
350 | struct program_space *search_pspace) | |
351 | { | |
352 | struct objfile *objfile; | |
353 | struct program_space *pspace; | |
354 | ||
355 | ALL_PSPACES (pspace) | |
356 | { | |
357 | if (search_pspace != NULL && search_pspace != pspace) | |
358 | continue; | |
359 | if (pspace->executing_startup) | |
360 | continue; | |
361 | ||
362 | set_current_program_space (pspace); | |
50641945 | 363 | |
f8eba3c6 TT |
364 | ALL_OBJFILES (objfile) |
365 | { | |
366 | struct symtab *symtab; | |
367 | ||
368 | if (objfile->sf) | |
369 | objfile->sf->qf->expand_symtabs_matching (objfile, NULL, | |
370 | iterate_name_matcher, | |
371 | ALL_DOMAIN, | |
372 | &name); | |
373 | ||
374 | ALL_OBJFILE_SYMTABS (objfile, symtab) | |
375 | { | |
376 | if (symtab->primary) | |
377 | { | |
378 | struct block *block; | |
50641945 | 379 | |
f8eba3c6 TT |
380 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK); |
381 | LA_ITERATE_OVER_SYMBOLS (block, name, domain, callback, data); | |
382 | } | |
383 | } | |
384 | } | |
385 | } | |
50641945 FN |
386 | } |
387 | ||
e8eb7bc5 KS |
388 | /* Returns the block to be used for symbol searches for the given SYMTAB, |
389 | which may be NULL. */ | |
390 | ||
391 | static struct block * | |
392 | get_search_block (struct symtab *symtab) | |
393 | { | |
394 | struct block *block; | |
395 | ||
396 | if (symtab != NULL) | |
397 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK); | |
398 | else | |
399 | { | |
400 | enum language save_language; | |
401 | ||
402 | /* get_selected_block can change the current language when there is | |
403 | no selected frame yet. */ | |
404 | save_language = current_language->la_language; | |
405 | block = get_selected_block (0); | |
406 | set_language (save_language); | |
407 | } | |
408 | ||
409 | return block; | |
410 | } | |
411 | ||
f8eba3c6 TT |
412 | /* A helper for find_method. This finds all methods in type T which |
413 | match NAME. It adds resulting symbol names to RESULT_NAMES, and | |
414 | adds T's direct superclasses to SUPERCLASSES. */ | |
50641945 | 415 | |
f8eba3c6 TT |
416 | static void |
417 | find_methods (struct type *t, const char *name, | |
418 | VEC (const_char_ptr) **result_names, | |
419 | VEC (typep) **superclasses) | |
50641945 FN |
420 | { |
421 | int i1 = 0; | |
422 | int ibase; | |
50641945 | 423 | char *class_name = type_name_no_tag (t); |
c00f8484 KS |
424 | char *canon; |
425 | ||
50641945 FN |
426 | /* Ignore this class if it doesn't have a name. This is ugly, but |
427 | unless we figure out how to get the physname without the name of | |
428 | the class, then the loop can't do any good. */ | |
f8eba3c6 | 429 | if (class_name) |
50641945 FN |
430 | { |
431 | int method_counter; | |
5c717440 | 432 | int name_len = strlen (name); |
50641945 | 433 | |
8bd1f2c6 | 434 | CHECK_TYPEDEF (t); |
50641945 FN |
435 | |
436 | /* Loop over each method name. At this level, all overloads of a name | |
437 | are counted as a single name. There is an inner loop which loops over | |
438 | each overload. */ | |
439 | ||
440 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
441 | method_counter >= 0; | |
442 | --method_counter) | |
443 | { | |
50641945 FN |
444 | char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
445 | char dem_opname[64]; | |
446 | ||
447 | if (strncmp (method_name, "__", 2) == 0 || | |
448 | strncmp (method_name, "op", 2) == 0 || | |
449 | strncmp (method_name, "type", 4) == 0) | |
450 | { | |
451 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
452 | method_name = dem_opname; | |
453 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
454 | method_name = dem_opname; | |
455 | } | |
456 | ||
f8eba3c6 TT |
457 | if (strcmp_iw (method_name, name) == 0) |
458 | { | |
459 | int field_counter; | |
aee8d8ba | 460 | |
f8eba3c6 TT |
461 | for (field_counter = (TYPE_FN_FIELDLIST_LENGTH (t, method_counter) |
462 | - 1); | |
463 | field_counter >= 0; | |
464 | --field_counter) | |
465 | { | |
466 | struct fn_field *f; | |
467 | const char *phys_name; | |
468 | ||
469 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
470 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
471 | continue; | |
472 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
473 | VEC_safe_push (const_char_ptr, *result_names, phys_name); | |
474 | } | |
475 | } | |
aee8d8ba DC |
476 | } |
477 | } | |
478 | ||
f8eba3c6 TT |
479 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) |
480 | VEC_safe_push (typep, *superclasses, TYPE_BASECLASS (t, ibase)); | |
50641945 FN |
481 | } |
482 | ||
50641945 FN |
483 | /* Find an instance of the character C in the string S that is outside |
484 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
485 | strings. Also, ignore the char within a template name, like a ',' |
486 | within foo<int, int>. */ | |
487 | ||
50641945 FN |
488 | static char * |
489 | find_toplevel_char (char *s, char c) | |
490 | { | |
491 | int quoted = 0; /* zero if we're not in quotes; | |
492 | '"' if we're in a double-quoted string; | |
493 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 494 | int depth = 0; /* Number of unclosed parens we've seen. */ |
50641945 FN |
495 | char *scan; |
496 | ||
497 | for (scan = s; *scan; scan++) | |
498 | { | |
499 | if (quoted) | |
500 | { | |
501 | if (*scan == quoted) | |
502 | quoted = 0; | |
503 | else if (*scan == '\\' && *(scan + 1)) | |
504 | scan++; | |
505 | } | |
506 | else if (*scan == c && ! quoted && depth == 0) | |
507 | return scan; | |
508 | else if (*scan == '"' || *scan == '\'') | |
509 | quoted = *scan; | |
8120c9d5 | 510 | else if (*scan == '(' || *scan == '<') |
50641945 | 511 | depth++; |
8120c9d5 | 512 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
513 | depth--; |
514 | } | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
889f28e2 | 519 | /* Determines if the gives string corresponds to an Objective-C method |
1777feb0 | 520 | representation, such as -[Foo bar:] or +[Foo bar]. Objective-C symbols |
889f28e2 AF |
521 | are allowed to have spaces and parentheses in them. */ |
522 | ||
523 | static int | |
524 | is_objc_method_format (const char *s) | |
525 | { | |
526 | if (s == NULL || *s == '\0') | |
527 | return 0; | |
528 | /* Handle arguments with the format FILENAME:SYMBOL. */ | |
529 | if ((s[0] == ':') && (strchr ("+-", s[1]) != NULL) | |
530 | && (s[2] == '[') && strchr(s, ']')) | |
531 | return 1; | |
532 | /* Handle arguments that are just SYMBOL. */ | |
533 | else if ((strchr ("+-", s[0]) != NULL) && (s[1] == '[') && strchr(s, ']')) | |
534 | return 1; | |
535 | return 0; | |
536 | } | |
537 | ||
f8eba3c6 TT |
538 | /* Given FILTERS, a list of canonical names, filter the sals in RESULT |
539 | and store the result in SELF->CANONICAL. */ | |
50641945 | 540 | |
f8eba3c6 TT |
541 | static void |
542 | filter_results (struct linespec_state *self, | |
543 | struct symtabs_and_lines *result, | |
544 | VEC (const_char_ptr) *filters) | |
545 | { | |
546 | int i; | |
547 | const char *name; | |
548 | ||
549 | for (i = 0; VEC_iterate (const_char_ptr, filters, i, name); ++i) | |
550 | { | |
551 | struct linespec_sals lsal; | |
552 | int j; | |
553 | ||
554 | memset (&lsal, 0, sizeof (lsal)); | |
555 | ||
556 | for (j = 0; j < result->nelts; ++j) | |
557 | { | |
558 | if (strcmp (name, self->canonical_names[j]) == 0) | |
559 | add_sal_to_sals_basic (&lsal.sals, &result->sals[j]); | |
560 | } | |
561 | ||
562 | if (lsal.sals.nelts > 0) | |
563 | { | |
564 | lsal.canonical = xstrdup (name); | |
565 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
566 | } | |
567 | } | |
568 | ||
569 | self->canonical->pre_expanded = 0; | |
570 | } | |
571 | ||
572 | /* Store RESULT into SELF->CANONICAL. */ | |
573 | ||
574 | static void | |
575 | convert_results_to_lsals (struct linespec_state *self, | |
576 | struct symtabs_and_lines *result) | |
50641945 | 577 | { |
f8eba3c6 TT |
578 | struct linespec_sals lsal; |
579 | ||
580 | lsal.canonical = NULL; | |
581 | lsal.sals = *result; | |
582 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
583 | } | |
584 | ||
585 | /* Handle multiple results in RESULT depending on SELECT_MODE. This | |
586 | will either return normally, throw an exception on multiple | |
587 | results, or present a menu to the user. On return, the SALS vector | |
588 | in SELF->CANONICAL is set up properly. */ | |
589 | ||
590 | static void | |
591 | decode_line_2 (struct linespec_state *self, | |
592 | struct symtabs_and_lines *result, | |
593 | const char *select_mode) | |
594 | { | |
595 | const char *iter; | |
596 | char *args, *prompt; | |
50641945 | 597 | int i; |
50641945 | 598 | struct cleanup *old_chain; |
f8eba3c6 TT |
599 | VEC (const_char_ptr) *item_names = NULL, *filters = NULL; |
600 | struct get_number_or_range_state state; | |
50641945 | 601 | |
f8eba3c6 TT |
602 | gdb_assert (select_mode != multiple_symbols_all); |
603 | gdb_assert (self->canonical != NULL); | |
50641945 | 604 | |
f8eba3c6 TT |
605 | old_chain = make_cleanup (VEC_cleanup (const_char_ptr), &item_names); |
606 | make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
607 | for (i = 0; i < result->nelts; ++i) | |
50641945 | 608 | { |
f8eba3c6 TT |
609 | int j, found = 0; |
610 | const char *iter; | |
611 | ||
612 | gdb_assert (self->canonical_names[i] != NULL); | |
613 | for (j = 0; VEC_iterate (const_char_ptr, item_names, j, iter); ++j) | |
614 | { | |
615 | if (strcmp (iter, self->canonical_names[i]) == 0) | |
616 | { | |
617 | found = 1; | |
618 | break; | |
619 | } | |
620 | } | |
621 | ||
622 | if (!found) | |
623 | VEC_safe_push (const_char_ptr, item_names, self->canonical_names[i]); | |
50641945 FN |
624 | } |
625 | ||
f8eba3c6 TT |
626 | if (select_mode == multiple_symbols_cancel |
627 | && VEC_length (const_char_ptr, item_names) > 1) | |
628 | error (_("canceled because the command is ambiguous\n" | |
629 | "See set/show multiple-symbol.")); | |
630 | ||
631 | if (select_mode == multiple_symbols_all | |
632 | || VEC_length (const_char_ptr, item_names) == 1) | |
50641945 | 633 | { |
f8eba3c6 TT |
634 | do_cleanups (old_chain); |
635 | convert_results_to_lsals (self, result); | |
636 | return; | |
50641945 FN |
637 | } |
638 | ||
f8eba3c6 TT |
639 | printf_unfiltered (_("[0] cancel\n[1] all\n")); |
640 | for (i = 0; VEC_iterate (const_char_ptr, item_names, i, iter); ++i) | |
641 | printf_unfiltered ("[%d] %s\n", i + 2, iter); | |
642 | ||
643 | prompt = getenv ("PS2"); | |
644 | if (prompt == NULL) | |
50641945 | 645 | { |
f8eba3c6 | 646 | prompt = "> "; |
50641945 | 647 | } |
f8eba3c6 | 648 | args = command_line_input (prompt, 0, "overload-choice"); |
50641945 FN |
649 | |
650 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 651 | error_no_arg (_("one or more choice numbers")); |
50641945 | 652 | |
f8eba3c6 TT |
653 | init_number_or_range (&state, args); |
654 | while (!state.finished) | |
50641945 FN |
655 | { |
656 | int num; | |
657 | ||
f8eba3c6 | 658 | num = get_number_or_range (&state); |
50641945 FN |
659 | |
660 | if (num == 0) | |
8a3fe4f8 | 661 | error (_("canceled")); |
50641945 FN |
662 | else if (num == 1) |
663 | { | |
f8eba3c6 TT |
664 | /* We intentionally make this result in a single breakpoint, |
665 | contrary to what older versions of gdb did. The | |
666 | rationale is that this lets a user get the | |
667 | multiple_symbols_all behavior even with the 'ask' | |
668 | setting; and he can get separate breakpoints by entering | |
669 | "2-57" at the query. */ | |
670 | do_cleanups (old_chain); | |
671 | convert_results_to_lsals (self, result); | |
672 | return; | |
50641945 FN |
673 | } |
674 | ||
f8eba3c6 TT |
675 | num -= 2; |
676 | if (num >= VEC_length (const_char_ptr, item_names)) | |
677 | printf_unfiltered (_("No choice number %d.\n"), num); | |
50641945 FN |
678 | else |
679 | { | |
f8eba3c6 TT |
680 | const char *elt = VEC_index (const_char_ptr, item_names, num); |
681 | ||
682 | if (elt != NULL) | |
50641945 | 683 | { |
f8eba3c6 TT |
684 | VEC_safe_push (const_char_ptr, filters, elt); |
685 | VEC_replace (const_char_ptr, item_names, num, NULL); | |
50641945 FN |
686 | } |
687 | else | |
688 | { | |
3e43a32a MS |
689 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
690 | num); | |
50641945 FN |
691 | } |
692 | } | |
50641945 | 693 | } |
f8eba3c6 TT |
694 | |
695 | filter_results (self, result, filters); | |
696 | do_cleanups (old_chain); | |
50641945 | 697 | } |
94af9270 | 698 | |
3d50dd94 JK |
699 | /* Valid delimiters for linespec keywords "if", "thread" or "task". */ |
700 | ||
701 | static int | |
702 | is_linespec_boundary (char c) | |
703 | { | |
704 | return c == ' ' || c == '\t' || c == '\0' || c == ','; | |
705 | } | |
706 | ||
94af9270 KS |
707 | /* A helper function for decode_line_1 and friends which skips P |
708 | past any method overload information at the beginning of P, e.g., | |
709 | "(const struct foo *)". | |
710 | ||
711 | This function assumes that P has already been validated to contain | |
712 | overload information, and it will assert if *P != '('. */ | |
713 | static char * | |
714 | find_method_overload_end (char *p) | |
715 | { | |
716 | int depth = 0; | |
717 | ||
718 | gdb_assert (*p == '('); | |
719 | ||
720 | while (*p) | |
721 | { | |
722 | if (*p == '(') | |
723 | ++depth; | |
724 | else if (*p == ')') | |
725 | { | |
726 | if (--depth == 0) | |
727 | { | |
728 | ++p; | |
729 | break; | |
730 | } | |
731 | } | |
732 | ++p; | |
733 | } | |
734 | ||
735 | return p; | |
736 | } | |
c00f8484 | 737 | |
c00f8484 | 738 | /* Keep important information used when looking up a name. This includes |
3d50dd94 JK |
739 | template parameters, overload information, and important keywords, including |
740 | the possible Java trailing type. */ | |
c00f8484 KS |
741 | |
742 | static char * | |
3d50dd94 | 743 | keep_name_info (char *p, int on_boundary) |
c00f8484 | 744 | { |
3d50dd94 JK |
745 | const char *quotes = get_gdb_completer_quote_characters (); |
746 | char *saved_p = p; | |
747 | int nest = 0; | |
c00f8484 | 748 | |
3d50dd94 JK |
749 | while (*p) |
750 | { | |
751 | if (strchr (quotes, *p)) | |
752 | break; | |
c00f8484 | 753 | |
3d50dd94 JK |
754 | if (*p == ',' && !nest) |
755 | break; | |
c00f8484 | 756 | |
3d50dd94 JK |
757 | if (on_boundary && !nest) |
758 | { | |
759 | const char *const words[] = { "if", "thread", "task" }; | |
760 | int wordi; | |
c00f8484 | 761 | |
3d50dd94 JK |
762 | for (wordi = 0; wordi < ARRAY_SIZE (words); wordi++) |
763 | if (strncmp (p, words[wordi], strlen (words[wordi])) == 0 | |
764 | && is_linespec_boundary (p[strlen (words[wordi])])) | |
765 | break; | |
766 | if (wordi < ARRAY_SIZE (words)) | |
767 | break; | |
768 | } | |
c00f8484 | 769 | |
3d50dd94 JK |
770 | if (*p == '(' || *p == '<' || *p == '[') |
771 | nest++; | |
772 | else if ((*p == ')' || *p == '>' || *p == ']') && nest > 0) | |
773 | nest--; | |
c00f8484 | 774 | |
3d50dd94 JK |
775 | p++; |
776 | ||
777 | /* The ',' check could fail on "operator ,". */ | |
778 | p += cp_validate_operator (p); | |
779 | ||
780 | on_boundary = is_linespec_boundary (p[-1]); | |
f17170e5 | 781 | } |
c00f8484 | 782 | |
3d50dd94 JK |
783 | while (p > saved_p && is_linespec_boundary (p[-1])) |
784 | p--; | |
785 | ||
786 | return p; | |
c00f8484 KS |
787 | } |
788 | ||
50641945 | 789 | \f |
1777feb0 | 790 | /* The parser of linespec itself. */ |
50641945 FN |
791 | |
792 | /* Parse a string that specifies a line number. | |
793 | Pass the address of a char * variable; that variable will be | |
794 | advanced over the characters actually parsed. | |
795 | ||
796 | The string can be: | |
797 | ||
798 | LINENUM -- that line number in current file. PC returned is 0. | |
799 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
800 | FUNCTION -- line number of openbrace of that function. | |
801 | PC returned is the start of the function. | |
0f5238ed | 802 | LABEL -- a label in the current scope |
50641945 FN |
803 | VARIABLE -- line number of definition of that variable. |
804 | PC returned is 0. | |
805 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
806 | *EXPR -- line in which address EXPR appears. | |
807 | ||
808 | This may all be followed by an "if EXPR", which we ignore. | |
809 | ||
810 | FUNCTION may be an undebuggable function found in minimal symbol table. | |
811 | ||
812 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
813 | of real code inside a function when a function is specified, and it is | |
814 | not OK to specify a variable or type to get its line number. | |
815 | ||
816 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
817 | It defaults to current_source_symtab. | |
818 | DEFAULT_LINE specifies the line number to use for relative | |
819 | line numbers (that start with signs). Defaults to current_source_line. | |
820 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
1777feb0 | 821 | line specs there if necessary. Currently overloaded member functions and |
50641945 | 822 | line numbers or static functions without a filename yield a canonical |
1777feb0 | 823 | line spec. The array and the line spec strings are allocated on the heap, |
50641945 FN |
824 | it is the callers responsibility to free them. |
825 | ||
826 | Note that it is possible to return zero for the symtab | |
827 | if no file is validly specified. Callers must check that. | |
58438ac1 | 828 | Also, the line number returned may be invalid. */ |
50641945 FN |
829 | |
830 | /* We allow single quotes in various places. This is a hideous | |
831 | kludge, which exists because the completer can't yet deal with the | |
832 | lack of single quotes. FIXME: write a linespec_completer which we | |
833 | can use as appropriate instead of make_symbol_completion_list. */ | |
834 | ||
ad32032e | 835 | static struct symtabs_and_lines |
f8eba3c6 | 836 | decode_line_internal (struct linespec_state *self, char **argptr) |
50641945 | 837 | { |
f3c39e76 | 838 | char *p; |
614b3b14 | 839 | char *q; |
50641945 | 840 | |
50641945 | 841 | char *copy; |
636b1a6d DC |
842 | /* This says whether or not something in *ARGPTR is quoted with |
843 | completer_quotes (i.e. with single quotes). */ | |
e325fb69 | 844 | int is_quoted; |
e5dd4106 | 845 | /* Is *ARGPTR enclosed in double quotes? */ |
50641945 | 846 | int is_quote_enclosed; |
d2630e69 | 847 | int is_objc_method = 0; |
50641945 | 848 | char *saved_arg = *argptr; |
791dfb64 DJ |
849 | /* If IS_QUOTED, the end of the quoted bit. */ |
850 | char *end_quote = NULL; | |
e8eb7bc5 KS |
851 | /* Is *ARGPTR enclosed in single quotes? */ |
852 | int is_squote_enclosed = 0; | |
0e0b460e KS |
853 | /* The "first half" of the linespec. */ |
854 | char *first_half; | |
50641945 | 855 | |
f8eba3c6 TT |
856 | /* If we are parsing `function:label', this holds the symbols |
857 | matching the function name. */ | |
858 | VEC (symbolp) *function_symbols = NULL; | |
859 | /* If FUNCTION_SYMBOLS is not NULL, then this is the exception that | |
9ef07c8c TT |
860 | was thrown when trying to parse a filename. */ |
861 | volatile struct gdb_exception file_exception; | |
862 | ||
f8eba3c6 TT |
863 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
864 | ||
50641945 FN |
865 | /* Defaults have defaults. */ |
866 | ||
f8eba3c6 | 867 | initialize_defaults (&self->default_symtab, &self->default_line); |
44fe14ab | 868 | |
a04257e6 | 869 | /* See if arg is *PC. */ |
50641945 | 870 | |
e325fb69 | 871 | if (**argptr == '*') |
f8eba3c6 TT |
872 | { |
873 | do_cleanups (cleanup); | |
874 | return decode_indirect (self, argptr); | |
875 | } | |
5f01dbc0 | 876 | |
e325fb69 MS |
877 | is_quoted = (strchr (get_gdb_completer_quote_characters (), |
878 | **argptr) != NULL); | |
50641945 | 879 | |
791dfb64 | 880 | if (is_quoted) |
e8eb7bc5 KS |
881 | { |
882 | end_quote = skip_quoted (*argptr); | |
883 | if (*end_quote == '\0') | |
884 | is_squote_enclosed = 1; | |
885 | } | |
50641945 | 886 | |
0960f083 DC |
887 | /* Check to see if it's a multipart linespec (with colons or |
888 | periods). */ | |
50641945 | 889 | |
17763fd9 EZ |
890 | /* Locate the end of the first half of the linespec. |
891 | After the call, for instance, if the argptr string is "foo.c:123" | |
892 | p will point at "123". If there is only one part, like "foo", p | |
1777feb0 MS |
893 | will point to "". If this is a C++ name, like "A::B::foo", p will |
894 | point to "::B::foo". Argptr is not changed by this call. */ | |
50641945 | 895 | |
0e0b460e | 896 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); |
50641945 | 897 | |
e8eb7bc5 KS |
898 | /* First things first: if ARGPTR starts with a filename, get its |
899 | symtab and strip the filename from ARGPTR. */ | |
900 | TRY_CATCH (file_exception, RETURN_MASK_ERROR) | |
901 | { | |
f8eba3c6 TT |
902 | self->file_symtabs = symtabs_from_filename (argptr, p, is_quote_enclosed, |
903 | &self->user_filename); | |
904 | } | |
905 | ||
906 | if (VEC_empty (symtab_p, self->file_symtabs)) | |
907 | { | |
908 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ | |
909 | VEC_safe_push (symtab_p, self->file_symtabs, NULL); | |
e8eb7bc5 KS |
910 | } |
911 | ||
912 | if (file_exception.reason >= 0) | |
913 | { | |
914 | /* Check for single quotes on the non-filename part. */ | |
915 | is_quoted = (**argptr | |
916 | && strchr (get_gdb_completer_quote_characters (), | |
917 | **argptr) != NULL); | |
918 | if (is_quoted) | |
919 | end_quote = skip_quoted (*argptr); | |
920 | ||
921 | /* Locate the next "half" of the linespec. */ | |
922 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); | |
923 | } | |
924 | ||
d2630e69 AF |
925 | /* Check if this is an Objective-C method (anything that starts with |
926 | a '+' or '-' and a '['). */ | |
889f28e2 | 927 | if (is_objc_method_format (p)) |
94af9270 | 928 | is_objc_method = 1; |
d2630e69 AF |
929 | |
930 | /* Check if the symbol could be an Objective-C selector. */ | |
931 | ||
932 | { | |
933 | struct symtabs_and_lines values; | |
e0881a8e | 934 | |
f8eba3c6 | 935 | values = decode_objc (self, argptr); |
d2630e69 | 936 | if (values.sals != NULL) |
f8eba3c6 TT |
937 | { |
938 | do_cleanups (cleanup); | |
939 | return values; | |
940 | } | |
d2630e69 AF |
941 | } |
942 | ||
0960f083 | 943 | /* Does it look like there actually were two parts? */ |
50641945 | 944 | |
791dfb64 | 945 | if (p[0] == ':' || p[0] == '.') |
50641945 | 946 | { |
17763fd9 EZ |
947 | /* Is it a C++ or Java compound data structure? |
948 | The check on p[1] == ':' is capturing the case of "::", | |
1777feb0 | 949 | since p[0]==':' was checked above. |
17763fd9 EZ |
950 | Note that the call to decode_compound does everything |
951 | for us, including the lookup on the symbol table, so we | |
1777feb0 | 952 | can return now. */ |
17763fd9 | 953 | |
50641945 | 954 | if (p[0] == '.' || p[1] == ':') |
791dfb64 | 955 | { |
94af9270 | 956 | struct symtabs_and_lines values; |
dcf9f4ab JK |
957 | volatile struct gdb_exception ex; |
958 | char *saved_argptr = *argptr; | |
94af9270 KS |
959 | |
960 | if (is_quote_enclosed) | |
961 | ++saved_arg; | |
dcf9f4ab | 962 | |
2f741504 JK |
963 | /* Initialize it just to avoid a GCC false warning. */ |
964 | memset (&values, 0, sizeof (values)); | |
965 | ||
dcf9f4ab JK |
966 | TRY_CATCH (ex, RETURN_MASK_ERROR) |
967 | { | |
f8eba3c6 | 968 | values = decode_compound (self, argptr, saved_arg, p); |
dcf9f4ab | 969 | } |
e8eb7bc5 | 970 | if ((is_quoted || is_squote_enclosed) && **argptr == '\'') |
94af9270 | 971 | *argptr = *argptr + 1; |
50641945 | 972 | |
dcf9f4ab | 973 | if (ex.reason >= 0) |
f8eba3c6 TT |
974 | { |
975 | do_cleanups (cleanup); | |
976 | return values; | |
977 | } | |
50641945 | 978 | |
dcf9f4ab JK |
979 | if (ex.error != NOT_FOUND_ERROR) |
980 | throw_exception (ex); | |
981 | ||
982 | *argptr = saved_argptr; | |
983 | } | |
984 | else | |
50641945 | 985 | { |
dcf9f4ab JK |
986 | /* If there was an exception looking up a specified filename earlier, |
987 | then check whether we were really given `function:label'. */ | |
988 | if (file_exception.reason < 0) | |
989 | { | |
f8eba3c6 TT |
990 | function_symbols = find_function_symbols (argptr, p, |
991 | is_quote_enclosed, | |
992 | &self->user_function); | |
993 | ||
dcf9f4ab JK |
994 | /* If we did not find a function, re-throw the original |
995 | exception. */ | |
f8eba3c6 | 996 | if (!function_symbols) |
dcf9f4ab | 997 | throw_exception (file_exception); |
f8eba3c6 TT |
998 | |
999 | make_cleanup (VEC_cleanup (symbolp), &function_symbols); | |
dcf9f4ab JK |
1000 | } |
1001 | ||
1002 | /* Check for single quotes on the non-filename part. */ | |
1003 | if (!is_quoted) | |
1004 | { | |
1005 | is_quoted = (**argptr | |
1006 | && strchr (get_gdb_completer_quote_characters (), | |
1007 | **argptr) != NULL); | |
1008 | if (is_quoted) | |
1009 | end_quote = skip_quoted (*argptr); | |
1010 | } | |
50641945 | 1011 | } |
50641945 | 1012 | } |
50641945 | 1013 | |
f8eba3c6 TT |
1014 | /* self->file_symtabs holds the specified file symtabs, or 0 if no file |
1015 | specified. | |
1016 | If we are parsing `function:symbol', then FUNCTION_SYMBOLS holds the | |
1017 | functions before the `:'. | |
50641945 FN |
1018 | arg no longer contains the file name. */ |
1019 | ||
0e0b460e KS |
1020 | /* If the filename was quoted, we must re-check the quotation. */ |
1021 | ||
1022 | if (end_quote == first_half && *end_quote!= '\0') | |
1023 | { | |
1024 | is_quoted = (**argptr | |
1025 | && strchr (get_gdb_completer_quote_characters (), | |
1026 | **argptr) != NULL); | |
1027 | if (is_quoted) | |
1028 | end_quote = skip_quoted (*argptr); | |
1029 | } | |
1030 | ||
a04257e6 | 1031 | /* Check whether arg is all digits (and sign). */ |
50641945 FN |
1032 | |
1033 | q = *argptr; | |
1034 | if (*q == '-' || *q == '+') | |
1035 | q++; | |
1036 | while (*q >= '0' && *q <= '9') | |
1037 | q++; | |
1038 | ||
9ef07c8c | 1039 | if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ',') |
f8eba3c6 TT |
1040 | && function_symbols == NULL) |
1041 | { | |
1042 | struct symtabs_and_lines values; | |
1043 | ||
1044 | /* We found a token consisting of all digits -- at least one digit. */ | |
1045 | values = decode_all_digits (self, argptr, q); | |
1046 | do_cleanups (cleanup); | |
1047 | return values; | |
1048 | } | |
50641945 FN |
1049 | |
1050 | /* Arg token is not digits => try it as a variable name | |
1051 | Find the next token (everything up to end or next whitespace). */ | |
1052 | ||
a04257e6 DC |
1053 | if (**argptr == '$') /* May be a convenience variable. */ |
1054 | /* One or two $ chars possible. */ | |
1055 | p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); | |
e8eb7bc5 | 1056 | else if (is_quoted || is_squote_enclosed) |
50641945 | 1057 | { |
791dfb64 | 1058 | p = end_quote; |
50641945 | 1059 | if (p[-1] != '\'') |
8a3fe4f8 | 1060 | error (_("Unmatched single quote.")); |
50641945 | 1061 | } |
d2630e69 AF |
1062 | else if (is_objc_method) |
1063 | { | |
1777feb0 | 1064 | /* allow word separators in method names for Obj-C. */ |
d2630e69 AF |
1065 | p = skip_quoted_chars (*argptr, NULL, ""); |
1066 | } | |
50641945 FN |
1067 | else |
1068 | { | |
1069 | p = skip_quoted (*argptr); | |
1070 | } | |
1071 | ||
c00f8484 | 1072 | /* Keep any important naming information. */ |
3d50dd94 | 1073 | p = keep_name_info (p, p == saved_arg || is_linespec_boundary (p[-1])); |
94af9270 | 1074 | |
50641945 FN |
1075 | copy = (char *) alloca (p - *argptr + 1); |
1076 | memcpy (copy, *argptr, p - *argptr); | |
1077 | copy[p - *argptr] = '\0'; | |
1078 | if (p != *argptr | |
1079 | && copy[0] | |
1080 | && copy[0] == copy[p - *argptr - 1] | |
c5f0f3d0 | 1081 | && strchr (get_gdb_completer_quote_characters (), copy[0]) != NULL) |
50641945 FN |
1082 | { |
1083 | copy[p - *argptr - 1] = '\0'; | |
1084 | copy++; | |
1085 | } | |
e8eb7bc5 | 1086 | else if (is_quoted || is_squote_enclosed) |
791dfb64 | 1087 | copy[p - *argptr - 1] = '\0'; |
f8eba3c6 TT |
1088 | |
1089 | *argptr = skip_spaces (p); | |
50641945 FN |
1090 | |
1091 | /* If it starts with $: may be a legitimate variable or routine name | |
1092 | (e.g. HP-UX millicode routines such as $$dyncall), or it may | |
a04257e6 | 1093 | be history value, or it may be a convenience variable. */ |
50641945 | 1094 | |
f8eba3c6 TT |
1095 | if (*copy == '$' && function_symbols == NULL) |
1096 | { | |
1097 | struct symtabs_and_lines values; | |
1098 | ||
1099 | values = decode_dollar (self, copy); | |
1100 | do_cleanups (cleanup); | |
1101 | return values; | |
1102 | } | |
50641945 | 1103 | |
0f5238ed TT |
1104 | /* Try the token as a label, but only if no file was specified, |
1105 | because we can only really find labels in the current scope. */ | |
1106 | ||
f8eba3c6 TT |
1107 | if (VEC_length (symtab_p, self->file_symtabs) == 1 |
1108 | && VEC_index (symtab_p, self->file_symtabs, 0) == NULL) | |
0f5238ed TT |
1109 | { |
1110 | struct symtabs_and_lines label_result; | |
f8eba3c6 TT |
1111 | if (decode_label (self, function_symbols, copy, &label_result)) |
1112 | { | |
1113 | do_cleanups (cleanup); | |
1114 | return label_result; | |
1115 | } | |
0f5238ed TT |
1116 | } |
1117 | ||
f8eba3c6 | 1118 | if (function_symbols) |
58438ac1 | 1119 | throw_exception (file_exception); |
9ef07c8c | 1120 | |
50641945 FN |
1121 | /* Look up that token as a variable. |
1122 | If file specified, use that file's per-file block to start with. */ | |
1123 | ||
f8eba3c6 TT |
1124 | { |
1125 | struct symtabs_and_lines values; | |
1126 | ||
1127 | values = decode_variable (self, copy); | |
1128 | do_cleanups (cleanup); | |
1129 | return values; | |
1130 | } | |
413dad4d | 1131 | } |
50641945 | 1132 | |
f8eba3c6 | 1133 | /* A constructor for linespec_state. */ |
44fe14ab | 1134 | |
f8eba3c6 TT |
1135 | static void |
1136 | linespec_state_constructor (struct linespec_state *self, | |
1137 | int flags, | |
1138 | struct symtab *default_symtab, | |
1139 | int default_line, | |
1140 | struct linespec_result *canonical) | |
1141 | { | |
1142 | memset (self, 0, sizeof (*self)); | |
1143 | self->funfirstline = (flags & DECODE_LINE_FUNFIRSTLINE) ? 1 : 0; | |
1144 | self->list_mode = (flags & DECODE_LINE_LIST_MODE) ? 1 : 0; | |
1145 | self->default_symtab = default_symtab; | |
1146 | self->default_line = default_line; | |
1147 | self->canonical = canonical; | |
1148 | self->program_space = current_program_space; | |
1149 | self->addr_set = htab_create_alloc (10, hash_address_entry, eq_address_entry, | |
1150 | xfree, xcalloc, xfree); | |
1151 | } | |
44fe14ab | 1152 | |
f8eba3c6 | 1153 | /* A destructor for linespec_state. */ |
44fe14ab DC |
1154 | |
1155 | static void | |
f8eba3c6 | 1156 | linespec_state_destructor (void *arg) |
44fe14ab | 1157 | { |
f8eba3c6 | 1158 | struct linespec_state *self = arg; |
44fe14ab | 1159 | |
f8eba3c6 TT |
1160 | xfree (self->user_filename); |
1161 | xfree (self->user_function); | |
1162 | VEC_free (symtab_p, self->file_symtabs); | |
1163 | htab_delete (self->addr_set); | |
1164 | } | |
44fe14ab | 1165 | |
f8eba3c6 | 1166 | /* See linespec.h. */ |
44fe14ab | 1167 | |
f8eba3c6 TT |
1168 | void |
1169 | decode_line_full (char **argptr, int flags, | |
1170 | struct symtab *default_symtab, | |
1171 | int default_line, struct linespec_result *canonical, | |
1172 | const char *select_mode, | |
1173 | const char *filter) | |
44fe14ab | 1174 | { |
f8eba3c6 TT |
1175 | struct symtabs_and_lines result; |
1176 | struct linespec_state state; | |
1177 | struct cleanup *cleanups; | |
1178 | char *arg_start = *argptr; | |
1179 | VEC (const_char_ptr) *filters = NULL; | |
1180 | ||
1181 | gdb_assert (canonical != NULL); | |
1182 | /* The filter only makes sense for 'all'. */ | |
1183 | gdb_assert (filter == NULL || select_mode == multiple_symbols_all); | |
1184 | gdb_assert (select_mode == NULL | |
1185 | || select_mode == multiple_symbols_all | |
1186 | || select_mode == multiple_symbols_ask | |
1187 | || select_mode == multiple_symbols_cancel); | |
1188 | gdb_assert ((flags & DECODE_LINE_LIST_MODE) == 0); | |
1189 | ||
1190 | linespec_state_constructor (&state, flags, | |
1191 | default_symtab, default_line, canonical); | |
1192 | cleanups = make_cleanup (linespec_state_destructor, &state); | |
1193 | save_current_program_space (); | |
1194 | ||
1195 | result = decode_line_internal (&state, argptr); | |
1196 | ||
1197 | gdb_assert (result.nelts == 1 || canonical->pre_expanded); | |
1198 | gdb_assert (canonical->addr_string != NULL); | |
1199 | canonical->pre_expanded = 1; | |
1200 | ||
1201 | /* Fill in the missing canonical names. */ | |
1202 | if (result.nelts > 0) | |
1203 | { | |
1204 | int i; | |
1205 | ||
1206 | if (state.canonical_names == NULL) | |
1207 | state.canonical_names = xcalloc (result.nelts, sizeof (char *)); | |
1208 | make_cleanup (xfree, state.canonical_names); | |
1209 | for (i = 0; i < result.nelts; ++i) | |
1210 | { | |
1211 | if (state.canonical_names[i] == NULL) | |
1212 | state.canonical_names[i] = savestring (arg_start, | |
1213 | *argptr - arg_start); | |
1214 | make_cleanup (xfree, state.canonical_names[i]); | |
1215 | } | |
1216 | } | |
1217 | ||
1218 | if (select_mode == NULL) | |
1219 | { | |
1220 | if (ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
1221 | select_mode = multiple_symbols_all; | |
1222 | else | |
1223 | select_mode = multiple_symbols_select_mode (); | |
1224 | } | |
1225 | ||
1226 | if (select_mode == multiple_symbols_all) | |
1227 | { | |
1228 | if (filter != NULL) | |
1229 | { | |
1230 | make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
1231 | VEC_safe_push (const_char_ptr, filters, filter); | |
1232 | filter_results (&state, &result, filters); | |
1233 | } | |
1234 | else | |
1235 | convert_results_to_lsals (&state, &result); | |
1236 | } | |
1237 | else | |
1238 | decode_line_2 (&state, &result, select_mode); | |
1239 | ||
1240 | do_cleanups (cleanups); | |
1241 | } | |
1242 | ||
1243 | struct symtabs_and_lines | |
1244 | decode_line_1 (char **argptr, int flags, | |
1245 | struct symtab *default_symtab, | |
1246 | int default_line) | |
1247 | { | |
1248 | struct symtabs_and_lines result; | |
1249 | struct linespec_state state; | |
1250 | struct cleanup *cleanups; | |
1251 | ||
1252 | linespec_state_constructor (&state, flags, | |
1253 | default_symtab, default_line, NULL); | |
1254 | cleanups = make_cleanup (linespec_state_destructor, &state); | |
1255 | save_current_program_space (); | |
1256 | ||
1257 | result = decode_line_internal (&state, argptr); | |
1258 | do_cleanups (cleanups); | |
1259 | return result; | |
1260 | } | |
1261 | ||
1262 | \f | |
1263 | ||
1264 | /* First, some functions to initialize stuff at the beggining of the | |
1265 | function. */ | |
1266 | ||
1267 | static void | |
1268 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
1269 | { | |
1270 | if (*default_symtab == 0) | |
1271 | { | |
1272 | /* Use whatever we have for the default source line. We don't use | |
1273 | get_current_or_default_symtab_and_line as it can recurse and call | |
1274 | us back! */ | |
1275 | struct symtab_and_line cursal = | |
1276 | get_current_source_symtab_and_line (); | |
1277 | ||
1278 | *default_symtab = cursal.symtab; | |
1279 | *default_line = cursal.line; | |
1280 | } | |
1281 | } | |
1282 | ||
1283 | \f | |
1284 | ||
1285 | /* Decode arg of the form *PC. */ | |
1286 | ||
1287 | static struct symtabs_and_lines | |
1288 | decode_indirect (struct linespec_state *self, char **argptr) | |
1289 | { | |
1290 | struct symtabs_and_lines values; | |
1291 | CORE_ADDR pc; | |
1292 | char *initial = *argptr; | |
1293 | ||
1294 | if (current_program_space->executing_startup) | |
1295 | /* The error message doesn't really matter, because this case | |
1296 | should only hit during breakpoint reset. */ | |
1297 | throw_error (NOT_FOUND_ERROR, _("cannot evaluate expressions while " | |
1298 | "program space is in startup")); | |
1299 | ||
44fe14ab | 1300 | (*argptr)++; |
63ffa6ee | 1301 | pc = value_as_address (parse_to_comma_and_eval (argptr)); |
44fe14ab DC |
1302 | |
1303 | values.sals = (struct symtab_and_line *) | |
1304 | xmalloc (sizeof (struct symtab_and_line)); | |
1305 | ||
1306 | values.nelts = 1; | |
1307 | values.sals[0] = find_pc_line (pc, 0); | |
1308 | values.sals[0].pc = pc; | |
1309 | values.sals[0].section = find_pc_overlay (pc); | |
ed0616c6 | 1310 | values.sals[0].explicit_pc = 1; |
44fe14ab | 1311 | |
f8eba3c6 TT |
1312 | if (self->canonical) |
1313 | self->canonical->addr_string = savestring (initial, *argptr - initial); | |
1314 | ||
44fe14ab DC |
1315 | return values; |
1316 | } | |
413dad4d DC |
1317 | |
1318 | \f | |
1319 | ||
0960f083 DC |
1320 | /* Locate the first half of the linespec, ending in a colon, period, |
1321 | or whitespace. (More or less.) Also, check to see if *ARGPTR is | |
1322 | enclosed in double quotes; if so, set is_quote_enclosed, advance | |
17763fd9 EZ |
1323 | ARGPTR past that and zero out the trailing double quote. |
1324 | If ARGPTR is just a simple name like "main", p will point to "" | |
1325 | at the end. */ | |
0960f083 DC |
1326 | |
1327 | static char * | |
1328 | locate_first_half (char **argptr, int *is_quote_enclosed) | |
1329 | { | |
1330 | char *ii; | |
1331 | char *p, *p1; | |
1332 | int has_comma; | |
1333 | ||
53907c91 JB |
1334 | /* Check if the linespec starts with an Ada operator (such as "+", |
1335 | or ">", for instance). */ | |
1336 | p = *argptr; | |
1337 | if (p[0] == '"' | |
1338 | && current_language->la_language == language_ada) | |
1339 | { | |
1340 | const struct ada_opname_map *op; | |
1341 | ||
1342 | for (op = ada_opname_table; op->encoded != NULL; op++) | |
1343 | if (strncmp (op->decoded, p, strlen (op->decoded)) == 0) | |
1344 | break; | |
1345 | if (op->encoded != NULL) | |
1346 | { | |
1347 | *is_quote_enclosed = 0; | |
1348 | return p + strlen (op->decoded); | |
1349 | } | |
1350 | } | |
1351 | ||
0960f083 DC |
1352 | /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM |
1353 | and we must isolate the first half. Outer layers will call again later | |
1354 | for the second half. | |
1355 | ||
1356 | Don't count commas that appear in argument lists of overloaded | |
1357 | functions, or in quoted strings. It's stupid to go to this much | |
1358 | trouble when the rest of the function is such an obvious roach hotel. */ | |
1359 | ii = find_toplevel_char (*argptr, ','); | |
1360 | has_comma = (ii != 0); | |
1361 | ||
a04257e6 | 1362 | /* Temporarily zap out second half to not confuse the code below. |
1777feb0 | 1363 | This is undone below. Do not change ii!! */ |
0960f083 DC |
1364 | if (has_comma) |
1365 | { | |
1366 | *ii = '\0'; | |
1367 | } | |
1368 | ||
a04257e6 DC |
1369 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION. May also be |
1370 | CLASS::MEMBER, or NAMESPACE::NAME. Look for ':', but ignore | |
1371 | inside of <>. */ | |
0960f083 DC |
1372 | |
1373 | p = *argptr; | |
1374 | if (p[0] == '"') | |
1375 | { | |
1376 | *is_quote_enclosed = 1; | |
1377 | (*argptr)++; | |
1378 | p++; | |
1379 | } | |
1380 | else | |
0e0b460e KS |
1381 | { |
1382 | *is_quote_enclosed = 0; | |
1383 | if (strchr (get_gdb_completer_quote_characters (), *p)) | |
1384 | { | |
1385 | ++(*argptr); | |
1386 | ++p; | |
1387 | } | |
1388 | } | |
731971ed KS |
1389 | |
1390 | ||
1391 | /* Check for a drive letter in the filename. This is done on all hosts | |
1392 | to capture cross-compilation environments. On Unixen, directory | |
1393 | separators are illegal in filenames, so if the user enters "e:/foo.c", | |
1394 | he is referring to a directory named "e:" and a source file named | |
1395 | "foo.c", and we still want to keep these two pieces together. */ | |
1396 | if (isalpha (p[0]) && p[1] == ':' && IS_DIR_SEPARATOR (p[2])) | |
1397 | p += 3; | |
1398 | ||
0960f083 DC |
1399 | for (; *p; p++) |
1400 | { | |
1401 | if (p[0] == '<') | |
1402 | { | |
1403 | char *temp_end = find_template_name_end (p); | |
e0881a8e | 1404 | |
0960f083 | 1405 | if (!temp_end) |
8a3fe4f8 | 1406 | error (_("malformed template specification in command")); |
0960f083 DC |
1407 | p = temp_end; |
1408 | } | |
c00f8484 KS |
1409 | |
1410 | if (p[0] == '(') | |
1411 | p = find_method_overload_end (p); | |
1412 | ||
d2630e69 | 1413 | /* Check for a colon and a plus or minus and a [ (which |
1777feb0 | 1414 | indicates an Objective-C method). */ |
889f28e2 | 1415 | if (is_objc_method_format (p)) |
d2630e69 AF |
1416 | { |
1417 | break; | |
1418 | } | |
a04257e6 | 1419 | /* Check for the end of the first half of the linespec. End of |
e8eb7bc5 KS |
1420 | line, a tab, a colon or a space. But if enclosed in double |
1421 | quotes we do not break on enclosed spaces. */ | |
0960f083 DC |
1422 | if (!*p |
1423 | || p[0] == '\t' | |
e8eb7bc5 | 1424 | || (p[0] == ':') |
0960f083 DC |
1425 | || ((p[0] == ' ') && !*is_quote_enclosed)) |
1426 | break; | |
a04257e6 | 1427 | if (p[0] == '.' && strchr (p, ':') == NULL) |
0960f083 | 1428 | { |
a04257e6 | 1429 | /* Java qualified method. Find the *last* '.', since the |
94af9270 KS |
1430 | others are package qualifiers. Stop at any open parenthesis |
1431 | which might provide overload information. */ | |
1432 | for (p1 = p; *p1 && *p1 != '('; p1++) | |
0960f083 DC |
1433 | { |
1434 | if (*p1 == '.') | |
1435 | p = p1; | |
1436 | } | |
1437 | break; | |
1438 | } | |
1439 | } | |
f8eba3c6 | 1440 | p = skip_spaces (p); |
0960f083 | 1441 | |
a04257e6 | 1442 | /* If the closing double quote was left at the end, remove it. */ |
0960f083 DC |
1443 | if (*is_quote_enclosed) |
1444 | { | |
1445 | char *closing_quote = strchr (p - 1, '"'); | |
e0881a8e | 1446 | |
0960f083 DC |
1447 | if (closing_quote && closing_quote[1] == '\0') |
1448 | *closing_quote = '\0'; | |
1449 | } | |
1450 | ||
a04257e6 DC |
1451 | /* Now that we've safely parsed the first half, put back ',' so |
1452 | outer layers can see it. */ | |
0960f083 DC |
1453 | if (has_comma) |
1454 | *ii = ','; | |
1455 | ||
1456 | return p; | |
1457 | } | |
1458 | ||
1459 | \f | |
1460 | ||
d2630e69 AF |
1461 | /* Here's where we recognise an Objective-C Selector. An Objective C |
1462 | selector may be implemented by more than one class, therefore it | |
1463 | may represent more than one method/function. This gives us a | |
1464 | situation somewhat analogous to C++ overloading. If there's more | |
1465 | than one method that could represent the selector, then use some of | |
1466 | the existing C++ code to let the user choose one. */ | |
1467 | ||
f8eba3c6 TT |
1468 | static struct symtabs_and_lines |
1469 | decode_objc (struct linespec_state *self, char **argptr) | |
d2630e69 | 1470 | { |
f8eba3c6 TT |
1471 | struct collect_info info; |
1472 | VEC (const_char_ptr) *symbol_names = NULL; | |
1473 | char *new_argptr; | |
1474 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr), | |
1475 | &symbol_names); | |
1476 | ||
1477 | info.state = self; | |
1478 | info.result.sals = NULL; | |
1479 | info.result.nelts = 0; | |
f8eba3c6 TT |
1480 | |
1481 | new_argptr = find_imps (*argptr, &symbol_names); | |
1482 | if (VEC_empty (const_char_ptr, symbol_names)) | |
1483 | { | |
1484 | do_cleanups (cleanup); | |
1485 | return info.result; | |
1486 | } | |
d2630e69 | 1487 | |
f8eba3c6 | 1488 | add_all_symbol_names_from_pspace (&info, NULL, symbol_names); |
d2630e69 | 1489 | |
f8eba3c6 | 1490 | if (info.result.nelts > 0) |
d2630e69 | 1491 | { |
f8eba3c6 | 1492 | char *saved_arg; |
d2630e69 | 1493 | |
f8eba3c6 TT |
1494 | saved_arg = alloca (new_argptr - *argptr + 1); |
1495 | memcpy (saved_arg, *argptr, new_argptr - *argptr); | |
1496 | saved_arg[new_argptr - *argptr] = '\0'; | |
d2630e69 | 1497 | |
f8eba3c6 | 1498 | if (self->canonical) |
d2630e69 | 1499 | { |
f8eba3c6 TT |
1500 | self->canonical->pre_expanded = 1; |
1501 | if (self->user_filename) | |
1502 | self->canonical->addr_string | |
1503 | = xstrprintf ("%s:%s", self->user_filename, saved_arg); | |
1504 | else | |
1505 | self->canonical->addr_string = xstrdup (saved_arg); | |
d2630e69 | 1506 | } |
d2630e69 AF |
1507 | } |
1508 | ||
f8eba3c6 | 1509 | *argptr = new_argptr; |
d2630e69 | 1510 | |
f8eba3c6 TT |
1511 | do_cleanups (cleanup); |
1512 | return info.result; | |
d2630e69 AF |
1513 | } |
1514 | ||
614b3b14 | 1515 | /* This handles C++ and Java compound data structures. P should point |
17763fd9 EZ |
1516 | at the first component separator, i.e. double-colon or period. As |
1517 | an example, on entrance to this function we could have ARGPTR | |
1518 | pointing to "AAA::inA::fun" and P pointing to "::inA::fun". */ | |
614b3b14 DC |
1519 | |
1520 | static struct symtabs_and_lines | |
f8eba3c6 TT |
1521 | decode_compound (struct linespec_state *self, |
1522 | char **argptr, char *the_real_saved_arg, char *p) | |
614b3b14 DC |
1523 | { |
1524 | struct symtabs_and_lines values; | |
f8eba3c6 | 1525 | char *p2; |
614b3b14 DC |
1526 | char *saved_arg2 = *argptr; |
1527 | char *temp_end; | |
1528 | struct symbol *sym; | |
614b3b14 | 1529 | char *copy; |
f8eba3c6 TT |
1530 | VEC (symbolp) *sym_classes; |
1531 | char *saved_arg, *class_name; | |
1532 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
c00f8484 KS |
1533 | |
1534 | /* If the user specified any completer quote characters in the input, | |
1535 | strip them. They are superfluous. */ | |
1536 | saved_arg = alloca (strlen (the_real_saved_arg) + 1); | |
1537 | { | |
1538 | char *dst = saved_arg; | |
1539 | char *src = the_real_saved_arg; | |
1540 | char *quotes = get_gdb_completer_quote_characters (); | |
1541 | while (*src != '\0') | |
1542 | { | |
1543 | if (strchr (quotes, *src) == NULL) | |
1544 | *dst++ = *src; | |
1545 | ++src; | |
1546 | } | |
1547 | *dst = '\0'; | |
1548 | } | |
614b3b14 | 1549 | |
17763fd9 EZ |
1550 | /* First check for "global" namespace specification, of the form |
1551 | "::foo". If found, skip over the colons and jump to normal | |
1552 | symbol processing. I.e. the whole line specification starts with | |
1777feb0 | 1553 | "::" (note the condition that *argptr == p). */ |
614b3b14 DC |
1554 | if (p[0] == ':' |
1555 | && ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))) | |
1556 | saved_arg2 += 2; | |
1557 | ||
87b3ede8 DC |
1558 | /* Given our example "AAA::inA::fun", we have two cases to consider: |
1559 | ||
1560 | 1) AAA::inA is the name of a class. In that case, presumably it | |
1561 | has a method called "fun"; we then look up that method using | |
1562 | find_method. | |
1563 | ||
1564 | 2) AAA::inA isn't the name of a class. In that case, either the | |
c00f8484 KS |
1565 | user made a typo, AAA::inA is the name of a namespace, or it is |
1566 | the name of a minimal symbol. | |
f8eba3c6 | 1567 | In this case we just delegate to decode_variable. |
87b3ede8 DC |
1568 | |
1569 | Thus, our first task is to find everything before the last set of | |
1570 | double-colons and figure out if it's the name of a class. So we | |
1571 | first loop through all of the double-colons. */ | |
614b3b14 | 1572 | |
a04257e6 | 1573 | p2 = p; /* Save for restart. */ |
17763fd9 | 1574 | |
1777feb0 | 1575 | /* This is very messy. Following the example above we have now the |
17763fd9 EZ |
1576 | following pointers: |
1577 | p -> "::inA::fun" | |
1578 | argptr -> "AAA::inA::fun | |
1579 | saved_arg -> "AAA::inA::fun | |
1580 | saved_arg2 -> "AAA::inA::fun | |
1777feb0 | 1581 | p2 -> "::inA::fun". */ |
17763fd9 EZ |
1582 | |
1583 | /* In the loop below, with these strings, we'll make 2 passes, each | |
1777feb0 | 1584 | is marked in comments. */ |
17763fd9 | 1585 | |
614b3b14 DC |
1586 | while (1) |
1587 | { | |
c00f8484 KS |
1588 | static char *break_characters = " \t("; |
1589 | ||
a04257e6 | 1590 | /* Move pointer up to next possible class/namespace token. */ |
17763fd9 | 1591 | |
a04257e6 | 1592 | p = p2 + 1; /* Restart with old value +1. */ |
17763fd9 EZ |
1593 | |
1594 | /* PASS1: at this point p2->"::inA::fun", so p->":inA::fun", | |
1595 | i.e. if there is a double-colon, p will now point to the | |
1777feb0 | 1596 | second colon. */ |
87b3ede8 | 1597 | /* PASS2: p2->"::fun", p->":fun" */ |
17763fd9 | 1598 | |
a04257e6 | 1599 | /* Move pointer ahead to next double-colon. */ |
c00f8484 KS |
1600 | while (*p |
1601 | && strchr (break_characters, *p) == NULL | |
1602 | && strchr (get_gdb_completer_quote_characters (), *p) == NULL) | |
614b3b14 | 1603 | { |
12907978 KS |
1604 | if (current_language->la_language == language_cplus) |
1605 | p += cp_validate_operator (p); | |
1606 | ||
614b3b14 DC |
1607 | if (p[0] == '<') |
1608 | { | |
1609 | temp_end = find_template_name_end (p); | |
1610 | if (!temp_end) | |
8a3fe4f8 | 1611 | error (_("malformed template specification in command")); |
614b3b14 DC |
1612 | p = temp_end; |
1613 | } | |
17763fd9 EZ |
1614 | /* Note that, since, at the start of this loop, p would be |
1615 | pointing to the second colon in a double-colon, we only | |
1616 | satisfy the condition below if there is another | |
1777feb0 MS |
1617 | double-colon to the right (after). I.e. there is another |
1618 | component that can be a class or a namespace. I.e, if at | |
17763fd9 EZ |
1619 | the beginning of this loop (PASS1), we had |
1620 | p->":inA::fun", we'll trigger this when p has been | |
1621 | advanced to point to "::fun". */ | |
1777feb0 | 1622 | /* PASS2: we will not trigger this. */ |
614b3b14 | 1623 | else if ((p[0] == ':') && (p[1] == ':')) |
a04257e6 | 1624 | break; /* Found double-colon. */ |
614b3b14 | 1625 | else |
c00f8484 KS |
1626 | { |
1627 | /* PASS2: We'll keep getting here, until P points to one of the | |
1628 | break characters, at which point we exit this loop. */ | |
2b1dbab0 KS |
1629 | if (*p) |
1630 | { | |
1631 | if (p[1] == '(' | |
1632 | && strncmp (&p[1], CP_ANONYMOUS_NAMESPACE_STR, | |
1633 | CP_ANONYMOUS_NAMESPACE_LEN) == 0) | |
1634 | p += CP_ANONYMOUS_NAMESPACE_LEN; | |
1635 | else if (strchr (break_characters, *p) == NULL) | |
1636 | ++p; | |
1637 | } | |
c00f8484 | 1638 | } |
614b3b14 DC |
1639 | } |
1640 | ||
1641 | if (*p != ':') | |
17763fd9 EZ |
1642 | break; /* Out of the while (1). This would happen |
1643 | for instance if we have looked up | |
1644 | unsuccessfully all the components of the | |
1777feb0 | 1645 | string, and p->""(PASS2). */ |
17763fd9 | 1646 | |
c00f8484 | 1647 | /* We get here if p points to one of the break characters or "" (i.e., |
1777feb0 | 1648 | string ended). */ |
17763fd9 EZ |
1649 | /* Save restart for next time around. */ |
1650 | p2 = p; | |
1651 | /* Restore argptr as it was on entry to this function. */ | |
1652 | *argptr = saved_arg2; | |
87b3ede8 DC |
1653 | /* PASS1: at this point p->"::fun" argptr->"AAA::inA::fun", |
1654 | p2->"::fun". */ | |
17763fd9 EZ |
1655 | |
1656 | /* All ready for next pass through the loop. */ | |
614b3b14 DC |
1657 | } /* while (1) */ |
1658 | ||
87b3ede8 | 1659 | |
1777feb0 | 1660 | /* Start of lookup in the symbol tables. */ |
87b3ede8 DC |
1661 | |
1662 | /* Lookup in the symbol table the substring between argptr and | |
1777feb0 | 1663 | p. Note, this call changes the value of argptr. */ |
87b3ede8 DC |
1664 | /* Before the call, argptr->"AAA::inA::fun", |
1665 | p->"", p2->"::fun". After the call: argptr->"fun", p, p2 | |
1666 | unchanged. */ | |
f8eba3c6 TT |
1667 | sym_classes = lookup_prefix_sym (argptr, p2, self->file_symtabs, |
1668 | &class_name); | |
1669 | make_cleanup (VEC_cleanup (symbolp), &sym_classes); | |
1670 | make_cleanup (xfree, class_name); | |
1671 | ||
1672 | /* If a class has been found, then we're in case 1 above. So we | |
1673 | look up "fun" as a method of those classes. */ | |
1674 | if (!VEC_empty (symbolp, sym_classes)) | |
87b3ede8 DC |
1675 | { |
1676 | /* Arg token is not digits => try it as a function name. | |
1677 | Find the next token (everything up to end or next | |
1678 | blank). */ | |
1679 | if (**argptr | |
1680 | && strchr (get_gdb_completer_quote_characters (), | |
1681 | **argptr) != NULL) | |
1682 | { | |
1683 | p = skip_quoted (*argptr); | |
1684 | *argptr = *argptr + 1; | |
1685 | } | |
1686 | else | |
1687 | { | |
1688 | /* At this point argptr->"fun". */ | |
94af9270 | 1689 | char *a; |
e0881a8e | 1690 | |
87b3ede8 | 1691 | p = *argptr; |
94af9270 KS |
1692 | while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':' |
1693 | && *p != '(') | |
87b3ede8 DC |
1694 | p++; |
1695 | /* At this point p->"". String ended. */ | |
12907978 KS |
1696 | /* Nope, C++ operators could have spaces in them |
1697 | ("foo::operator <" or "foo::operator delete []"). | |
1698 | I apologize, this is a bit hacky... */ | |
1699 | if (current_language->la_language == language_cplus | |
1700 | && *p == ' ' && p - 8 - *argptr + 1 > 0) | |
1701 | { | |
1702 | /* The above loop has already swallowed "operator". */ | |
1703 | p += cp_validate_operator (p - 8) - 8; | |
1704 | } | |
94af9270 | 1705 | |
c00f8484 | 1706 | /* Keep any important naming information. */ |
3d50dd94 | 1707 | p = keep_name_info (p, 1); |
87b3ede8 DC |
1708 | } |
1709 | ||
1710 | /* Allocate our own copy of the substring between argptr and | |
1777feb0 | 1711 | p. */ |
87b3ede8 DC |
1712 | copy = (char *) alloca (p - *argptr + 1); |
1713 | memcpy (copy, *argptr, p - *argptr); | |
1714 | copy[p - *argptr] = '\0'; | |
1715 | if (p != *argptr | |
1716 | && copy[p - *argptr - 1] | |
1717 | && strchr (get_gdb_completer_quote_characters (), | |
1718 | copy[p - *argptr - 1]) != NULL) | |
1719 | copy[p - *argptr - 1] = '\0'; | |
1720 | ||
1777feb0 | 1721 | /* At this point copy->"fun", p->"". */ |
87b3ede8 DC |
1722 | |
1723 | /* No line number may be specified. */ | |
f8eba3c6 | 1724 | *argptr = skip_spaces (p); |
87b3ede8 DC |
1725 | /* At this point arptr->"". */ |
1726 | ||
1777feb0 | 1727 | /* Look for copy as a method of sym_class. */ |
87b3ede8 DC |
1728 | /* At this point copy->"fun", sym_class is "AAA:inA", |
1729 | saved_arg->"AAA::inA::fun". This concludes the scanning of | |
1730 | the string for possible components matches. If we find it | |
1777feb0 | 1731 | here, we return. If not, and we are at the and of the string, |
87b3ede8 DC |
1732 | we'll lookup the whole string in the symbol tables. */ |
1733 | ||
f8eba3c6 TT |
1734 | values = find_method (self, saved_arg, copy, class_name, sym_classes); |
1735 | ||
1736 | do_cleanups (cleanup); | |
1737 | return values; | |
1777feb0 | 1738 | } /* End if symbol found. */ |
87b3ede8 DC |
1739 | |
1740 | ||
1741 | /* We couldn't find a class, so we're in case 2 above. We check the | |
f8eba3c6 TT |
1742 | entire name as a symbol instead. The simplest way to do this is |
1743 | to just throw an exception and let our caller fall through to | |
1744 | decode_variable. */ | |
87b3ede8 | 1745 | |
f8eba3c6 TT |
1746 | throw_error (NOT_FOUND_ERROR, _("see caller, this text doesn't matter")); |
1747 | } | |
c00f8484 | 1748 | |
f8eba3c6 TT |
1749 | /* An instance of this type is used when collecting prefix symbols for |
1750 | decode_compound. */ | |
17763fd9 | 1751 | |
f8eba3c6 TT |
1752 | struct decode_compound_collector |
1753 | { | |
1754 | /* The result vector. */ | |
1755 | VEC (symbolp) *symbols; | |
3a93a0c2 | 1756 | |
f8eba3c6 TT |
1757 | /* A hash table of all symbols we found. We use this to avoid |
1758 | adding any symbol more than once. */ | |
1759 | htab_t unique_syms; | |
1760 | }; | |
3a93a0c2 | 1761 | |
f8eba3c6 TT |
1762 | /* A callback for iterate_over_symbols that is used by |
1763 | lookup_prefix_sym to collect type symbols. */ | |
c00f8484 | 1764 | |
f8eba3c6 TT |
1765 | static int |
1766 | collect_one_symbol (struct symbol *sym, void *d) | |
1767 | { | |
1768 | struct decode_compound_collector *collector = d; | |
1769 | void **slot; | |
1770 | struct type *t; | |
614b3b14 | 1771 | |
f8eba3c6 TT |
1772 | if (SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
1773 | return 1; | |
1774 | ||
1775 | t = SYMBOL_TYPE (sym); | |
1776 | CHECK_TYPEDEF (t); | |
1777 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT | |
1778 | && TYPE_CODE (t) != TYPE_CODE_UNION | |
1779 | && TYPE_CODE (t) != TYPE_CODE_NAMESPACE) | |
1780 | return 1; | |
614b3b14 | 1781 | |
f8eba3c6 TT |
1782 | slot = htab_find_slot (collector->unique_syms, sym, INSERT); |
1783 | if (!*slot) | |
1784 | { | |
1785 | *slot = sym; | |
1786 | VEC_safe_push (symbolp, collector->symbols, sym); | |
1787 | } | |
1788 | ||
1789 | return 1; | |
1790 | } | |
93d91629 DC |
1791 | |
1792 | /* Return the symbol corresponding to the substring of *ARGPTR ending | |
1793 | at P, allowing whitespace. Also, advance *ARGPTR past the symbol | |
1794 | name in question, the compound object separator ("::" or "."), and | |
17763fd9 | 1795 | whitespace. Note that *ARGPTR is changed whether or not the |
f8eba3c6 | 1796 | this call finds anything (i.e we return NULL). As an |
17763fd9 | 1797 | example, say ARGPTR is "AAA::inA::fun" and P is "::inA::fun". */ |
93d91629 | 1798 | |
f8eba3c6 TT |
1799 | static VEC (symbolp) * |
1800 | lookup_prefix_sym (char **argptr, char *p, VEC (symtab_p) *file_symtabs, | |
1801 | char **class_name) | |
93d91629 DC |
1802 | { |
1803 | char *p1; | |
1804 | char *copy; | |
f8eba3c6 TT |
1805 | int ix; |
1806 | struct symtab *elt; | |
1807 | struct decode_compound_collector collector; | |
1808 | struct cleanup *outer; | |
1809 | struct cleanup *cleanup; | |
1810 | struct block *search_block; | |
93d91629 DC |
1811 | |
1812 | /* Extract the class name. */ | |
1813 | p1 = p; | |
1814 | while (p != *argptr && p[-1] == ' ') | |
1815 | --p; | |
f8eba3c6 | 1816 | copy = (char *) xmalloc (p - *argptr + 1); |
93d91629 DC |
1817 | memcpy (copy, *argptr, p - *argptr); |
1818 | copy[p - *argptr] = 0; | |
f8eba3c6 TT |
1819 | *class_name = copy; |
1820 | outer = make_cleanup (xfree, copy); | |
93d91629 | 1821 | |
17763fd9 | 1822 | /* Discard the class name from the argptr. */ |
93d91629 | 1823 | p = p1 + (p1[0] == ':' ? 2 : 1); |
f8eba3c6 | 1824 | p = skip_spaces (p); |
93d91629 DC |
1825 | *argptr = p; |
1826 | ||
17763fd9 | 1827 | /* At this point p1->"::inA::fun", p->"inA::fun" copy->"AAA", |
1777feb0 | 1828 | argptr->"inA::fun". */ |
17763fd9 | 1829 | |
f8eba3c6 TT |
1830 | collector.symbols = NULL; |
1831 | make_cleanup (VEC_cleanup (symbolp), &collector.symbols); | |
e0881a8e | 1832 | |
f8eba3c6 TT |
1833 | collector.unique_syms = htab_create_alloc (1, htab_hash_pointer, |
1834 | htab_eq_pointer, NULL, | |
1835 | xcalloc, xfree); | |
1836 | cleanup = make_cleanup_htab_delete (collector.unique_syms); | |
e0881a8e | 1837 | |
f8eba3c6 TT |
1838 | for (ix = 0; VEC_iterate (symtab_p, file_symtabs, ix, elt); ++ix) |
1839 | { | |
1840 | if (elt == NULL) | |
1841 | { | |
1842 | iterate_over_all_matching_symtabs (copy, STRUCT_DOMAIN, | |
1843 | collect_one_symbol, &collector, | |
1844 | NULL); | |
1845 | iterate_over_all_matching_symtabs (copy, VAR_DOMAIN, | |
1846 | collect_one_symbol, &collector, | |
1847 | NULL); | |
1848 | } | |
1849 | else | |
1850 | { | |
1851 | struct block *search_block; | |
1852 | ||
1853 | /* Program spaces that are executing startup should have | |
1854 | been filtered out earlier. */ | |
1855 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
1856 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
1857 | search_block = get_search_block (elt); | |
1858 | LA_ITERATE_OVER_SYMBOLS (search_block, copy, STRUCT_DOMAIN, | |
1859 | collect_one_symbol, &collector); | |
1860 | LA_ITERATE_OVER_SYMBOLS (search_block, copy, VAR_DOMAIN, | |
1861 | collect_one_symbol, &collector); | |
1e5a1abc KS |
1862 | } |
1863 | } | |
1864 | ||
f8eba3c6 TT |
1865 | do_cleanups (cleanup); |
1866 | discard_cleanups (outer); | |
1867 | return collector.symbols; | |
93d91629 DC |
1868 | } |
1869 | ||
f8eba3c6 TT |
1870 | /* A qsort comparison function for symbols. The resulting order does |
1871 | not actually matter; we just need to be able to sort them so that | |
1872 | symbols with the same program space end up next to each other. */ | |
4224873a | 1873 | |
f8eba3c6 TT |
1874 | static int |
1875 | compare_symbols (const void *a, const void *b) | |
4224873a | 1876 | { |
f8eba3c6 TT |
1877 | struct symbol * const *sa = a; |
1878 | struct symbol * const *sb = b; | |
1879 | uintptr_t uia, uib; | |
1880 | ||
1881 | uia = (uintptr_t) SYMTAB_PSPACE (SYMBOL_SYMTAB (*sa)); | |
1882 | uib = (uintptr_t) SYMTAB_PSPACE (SYMBOL_SYMTAB (*sb)); | |
1883 | ||
1884 | if (uia < uib) | |
1885 | return -1; | |
1886 | if (uia > uib) | |
1887 | return 1; | |
1888 | ||
1889 | uia = (uintptr_t) *sa; | |
1890 | uib = (uintptr_t) *sb; | |
1891 | ||
1892 | if (uia < uib) | |
1893 | return -1; | |
1894 | if (uia > uib) | |
1895 | return 1; | |
1896 | ||
1897 | return 0; | |
1898 | } | |
1899 | ||
1900 | /* Look for all the matching instances of each symbol in NAMES. Only | |
1901 | instances from PSPACE are considered; other program spaces are | |
1902 | handled by our caller. If PSPACE is NULL, then all program spaces | |
1903 | are considered. Results are stored into INFO. */ | |
1904 | ||
1905 | static void | |
1906 | add_all_symbol_names_from_pspace (struct collect_info *info, | |
1907 | struct program_space *pspace, | |
1908 | VEC (const_char_ptr) *names) | |
1909 | { | |
1910 | int ix; | |
1911 | const char *iter; | |
1912 | ||
1913 | for (ix = 0; VEC_iterate (const_char_ptr, names, ix, iter); ++ix) | |
1914 | add_matching_symbols_to_info (iter, info, pspace); | |
1915 | } | |
1916 | ||
1917 | static void | |
1918 | find_superclass_methods (VEC (typep) *superclasses, | |
1919 | const char *name, | |
1920 | VEC (const_char_ptr) **result_names) | |
1921 | { | |
1922 | int old_len = VEC_length (const_char_ptr, *result_names); | |
1923 | VEC (typep) *iter_classes; | |
1924 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
1925 | ||
1926 | iter_classes = superclasses; | |
1927 | while (1) | |
1928 | { | |
1929 | VEC (typep) *new_supers = NULL; | |
1930 | int ix; | |
1931 | struct type *t; | |
1932 | ||
1933 | make_cleanup (VEC_cleanup (typep), &new_supers); | |
1934 | for (ix = 0; VEC_iterate (typep, iter_classes, ix, t); ++ix) | |
1935 | find_methods (t, name, result_names, &new_supers); | |
1936 | ||
1937 | if (VEC_length (const_char_ptr, *result_names) != old_len | |
1938 | || VEC_empty (typep, new_supers)) | |
1939 | break; | |
4224873a | 1940 | |
f8eba3c6 TT |
1941 | iter_classes = new_supers; |
1942 | } | |
4224873a | 1943 | |
f8eba3c6 TT |
1944 | do_cleanups (cleanup); |
1945 | } | |
1946 | ||
1947 | /* This finds the method COPY in the class whose type is given by one | |
1948 | of the symbols in SYM_CLASSES. */ | |
1949 | ||
1950 | static struct symtabs_and_lines | |
1951 | find_method (struct linespec_state *self, char *saved_arg, | |
1952 | char *copy, const char *class_name, VEC (symbolp) *sym_classes) | |
1953 | { | |
1954 | char *canon; | |
1955 | struct symbol *sym; | |
1956 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
1957 | int ix; | |
1958 | int last_result_len; | |
1959 | VEC (typep) *superclass_vec; | |
1960 | VEC (const_char_ptr) *result_names; | |
1961 | struct collect_info info; | |
1962 | char *name_iter; | |
4224873a | 1963 | |
f8eba3c6 TT |
1964 | /* NAME is typed by the user: it needs to be canonicalized before |
1965 | searching the symbol tables. */ | |
1966 | canon = cp_canonicalize_string_no_typedefs (copy); | |
1967 | if (canon != NULL) | |
4224873a | 1968 | { |
f8eba3c6 TT |
1969 | copy = canon; |
1970 | make_cleanup (xfree, copy); | |
1971 | } | |
4224873a | 1972 | |
f8eba3c6 TT |
1973 | /* Sort symbols so that symbols with the same program space are next |
1974 | to each other. */ | |
1975 | qsort (VEC_address (symbolp, sym_classes), | |
1976 | VEC_length (symbolp, sym_classes), | |
1977 | sizeof (symbolp), | |
1978 | compare_symbols); | |
1979 | ||
1980 | info.state = self; | |
1981 | info.result.sals = NULL; | |
1982 | info.result.nelts = 0; | |
f8eba3c6 TT |
1983 | |
1984 | /* Iterate over all the types, looking for the names of existing | |
1985 | methods matching COPY. If we cannot find a direct method in a | |
1986 | given program space, then we consider inherited methods; this is | |
1987 | not ideal (ideal would be to respect C++ hiding rules), but it | |
1988 | seems good enough and is what GDB has historically done. We only | |
1989 | need to collect the names because later we find all symbols with | |
1990 | those names. This loop is written in a somewhat funny way | |
1991 | because we collect data across the program space before deciding | |
1992 | what to do. */ | |
1993 | superclass_vec = NULL; | |
1994 | make_cleanup (VEC_cleanup (typep), &superclass_vec); | |
1995 | result_names = NULL; | |
1996 | make_cleanup (VEC_cleanup (const_char_ptr), &result_names); | |
1997 | last_result_len = 0; | |
1998 | for (ix = 0; VEC_iterate (symbolp, sym_classes, ix, sym); ++ix) | |
1999 | { | |
2000 | struct type *t; | |
2001 | struct program_space *pspace; | |
2002 | ||
2003 | /* Program spaces that are executing startup should have | |
2004 | been filtered out earlier. */ | |
2005 | gdb_assert (!SYMTAB_PSPACE (SYMBOL_SYMTAB (sym))->executing_startup); | |
2006 | pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
2007 | set_current_program_space (pspace); | |
2008 | t = check_typedef (SYMBOL_TYPE (sym)); | |
2009 | find_methods (t, copy, &result_names, &superclass_vec); | |
2010 | ||
2011 | /* Handle all items from a single program space at once; and be | |
2012 | sure not to miss the last batch. */ | |
2013 | if (ix == VEC_length (symbolp, sym_classes) - 1 | |
2014 | || (pspace | |
2015 | != SYMTAB_PSPACE (SYMBOL_SYMTAB (VEC_index (symbolp, sym_classes, | |
2016 | ix + 1))))) | |
4224873a | 2017 | { |
f8eba3c6 TT |
2018 | /* If we did not find a direct implementation anywhere in |
2019 | this program space, consider superclasses. */ | |
2020 | if (VEC_length (const_char_ptr, result_names) == last_result_len) | |
2021 | find_superclass_methods (superclass_vec, copy, &result_names); | |
2022 | ||
2023 | /* We have a list of candidate symbol names, so now we | |
2024 | iterate over the symbol tables looking for all | |
2025 | matches in this pspace. */ | |
2026 | add_all_symbol_names_from_pspace (&info, pspace, result_names); | |
2027 | ||
2028 | VEC_truncate (typep, superclass_vec, 0); | |
2029 | last_result_len = VEC_length (const_char_ptr, result_names); | |
4224873a | 2030 | } |
4224873a | 2031 | } |
f8eba3c6 TT |
2032 | |
2033 | if (info.result.nelts > 0) | |
4224873a | 2034 | { |
f8eba3c6 | 2035 | if (self->canonical) |
94af9270 | 2036 | { |
f8eba3c6 TT |
2037 | self->canonical->pre_expanded = 1; |
2038 | if (self->user_filename) | |
2039 | self->canonical->addr_string | |
2040 | = xstrprintf ("%s:%s", self->user_filename, saved_arg); | |
2041 | else | |
2042 | self->canonical->addr_string = xstrdup (saved_arg); | |
94af9270 KS |
2043 | } |
2044 | ||
f8eba3c6 TT |
2045 | do_cleanups (cleanup); |
2046 | ||
2047 | return info.result; | |
4224873a | 2048 | } |
f8eba3c6 TT |
2049 | |
2050 | if (copy[0] == '~') | |
2051 | cplusplus_error (saved_arg, | |
2052 | "the class `%s' does not have destructor defined\n", | |
2053 | class_name); | |
4224873a | 2054 | else |
f8eba3c6 TT |
2055 | cplusplus_error (saved_arg, |
2056 | "the class %s does not have any method named %s\n", | |
2057 | class_name, copy); | |
2058 | } | |
2059 | ||
2060 | \f | |
2061 | ||
2062 | /* This object is used when collecting all matching symtabs. */ | |
2063 | ||
2064 | struct symtab_collector | |
2065 | { | |
2066 | /* The result vector of symtabs. */ | |
2067 | VEC (symtab_p) *symtabs; | |
2068 | ||
2069 | /* This is used to ensure the symtabs are unique. */ | |
2070 | htab_t symtab_table; | |
2071 | }; | |
2072 | ||
2073 | /* Callback for iterate_over_symtabs. */ | |
2074 | ||
2075 | static int | |
2076 | add_symtabs_to_list (struct symtab *symtab, void *d) | |
2077 | { | |
2078 | struct symtab_collector *data = d; | |
2079 | void **slot; | |
2080 | ||
2081 | slot = htab_find_slot (data->symtab_table, symtab, INSERT); | |
2082 | if (!*slot) | |
4224873a | 2083 | { |
f8eba3c6 TT |
2084 | *slot = symtab; |
2085 | VEC_safe_push (symtab_p, data->symtabs, symtab); | |
4224873a | 2086 | } |
f8eba3c6 TT |
2087 | |
2088 | return 0; | |
4224873a DC |
2089 | } |
2090 | ||
f8eba3c6 TT |
2091 | /* Given a file name, return a VEC of all matching symtabs. */ |
2092 | ||
2093 | static VEC (symtab_p) * | |
2094 | collect_symtabs_from_filename (const char *file) | |
2095 | { | |
2096 | struct symtab_collector collector; | |
2097 | struct cleanup *cleanups; | |
2098 | struct program_space *pspace; | |
2099 | ||
2100 | collector.symtabs = NULL; | |
2101 | collector.symtab_table = htab_create (1, htab_hash_pointer, htab_eq_pointer, | |
2102 | NULL); | |
2103 | cleanups = make_cleanup_htab_delete (collector.symtab_table); | |
2104 | ||
2105 | /* Find that file's data. */ | |
2106 | ALL_PSPACES (pspace) | |
2107 | { | |
2108 | if (pspace->executing_startup) | |
2109 | continue; | |
2110 | ||
2111 | set_current_program_space (pspace); | |
2112 | iterate_over_symtabs (file, add_symtabs_to_list, &collector); | |
2113 | } | |
f3c39e76 | 2114 | |
f8eba3c6 TT |
2115 | do_cleanups (cleanups); |
2116 | return collector.symtabs; | |
2117 | } | |
2118 | ||
2119 | /* Return all the symtabs associated to the filename given by the | |
2120 | substring of *ARGPTR ending at P, and advance ARGPTR past that | |
2121 | filename. */ | |
f3c39e76 | 2122 | |
f8eba3c6 TT |
2123 | static VEC (symtab_p) * |
2124 | symtabs_from_filename (char **argptr, char *p, int is_quote_enclosed, | |
2125 | char **user_filename) | |
f3c39e76 DC |
2126 | { |
2127 | char *p1; | |
2128 | char *copy; | |
f8eba3c6 TT |
2129 | struct cleanup *outer; |
2130 | VEC (symtab_p) *result; | |
f3c39e76 DC |
2131 | |
2132 | p1 = p; | |
2133 | while (p != *argptr && p[-1] == ' ') | |
2134 | --p; | |
2135 | if ((*p == '"') && is_quote_enclosed) | |
2136 | --p; | |
f8eba3c6 TT |
2137 | copy = xmalloc (p - *argptr + 1); |
2138 | outer = make_cleanup (xfree, copy); | |
f3c39e76 | 2139 | memcpy (copy, *argptr, p - *argptr); |
a04257e6 | 2140 | /* It may have the ending quote right after the file name. */ |
0e0b460e KS |
2141 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') |
2142 | || copy[p - *argptr - 1] == '\'') | |
f3c39e76 DC |
2143 | copy[p - *argptr - 1] = 0; |
2144 | else | |
2145 | copy[p - *argptr] = 0; | |
2146 | ||
f8eba3c6 TT |
2147 | result = collect_symtabs_from_filename (copy); |
2148 | ||
2149 | if (VEC_empty (symtab_p, result)) | |
f3c39e76 | 2150 | { |
b96e2927 PA |
2151 | if (!have_full_symbols () && !have_partial_symbols ()) |
2152 | throw_error (NOT_FOUND_ERROR, | |
3e43a32a MS |
2153 | _("No symbol table is loaded. " |
2154 | "Use the \"file\" command.")); | |
109c3e39 | 2155 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), copy); |
f3c39e76 DC |
2156 | } |
2157 | ||
2158 | /* Discard the file name from the arg. */ | |
edb2aadf | 2159 | if (*p1 == '\0') |
f8eba3c6 TT |
2160 | *argptr = p1; |
2161 | else | |
2162 | *argptr = skip_spaces (p1 + 1); | |
2163 | ||
2164 | discard_cleanups (outer); | |
2165 | *user_filename = copy; | |
2166 | return result; | |
2167 | } | |
2168 | ||
2169 | /* A callback used by iterate_over_all_matching_symtabs that collects | |
2170 | symbols for find_function_symbols. */ | |
2171 | ||
2172 | static int | |
2173 | collect_function_symbols (struct symbol *sym, void *arg) | |
2174 | { | |
2175 | VEC (symbolp) **syms = arg; | |
f3c39e76 | 2176 | |
f8eba3c6 TT |
2177 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
2178 | VEC_safe_push (symbolp, *syms, sym); | |
2179 | ||
2180 | return 1; | |
f3c39e76 DC |
2181 | } |
2182 | ||
9ef07c8c TT |
2183 | /* Look up a function symbol in *ARGPTR. If found, advance *ARGPTR |
2184 | and return the symbol. If not found, return NULL. */ | |
2185 | ||
f8eba3c6 TT |
2186 | static VEC (symbolp) * |
2187 | find_function_symbols (char **argptr, char *p, int is_quote_enclosed, | |
2188 | char **user_function) | |
9ef07c8c TT |
2189 | { |
2190 | char *p1; | |
2191 | char *copy; | |
f8eba3c6 | 2192 | VEC (symbolp) *result = NULL; |
9ef07c8c TT |
2193 | |
2194 | p1 = p; | |
2195 | while (p != *argptr && p[-1] == ' ') | |
2196 | --p; | |
2197 | if ((*p == '"') && is_quote_enclosed) | |
2198 | --p; | |
f8eba3c6 TT |
2199 | copy = (char *) xmalloc (p - *argptr + 1); |
2200 | *user_function = copy; | |
9ef07c8c TT |
2201 | memcpy (copy, *argptr, p - *argptr); |
2202 | /* It may have the ending quote right after the file name. */ | |
2203 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') | |
2204 | || copy[p - *argptr - 1] == '\'') | |
2205 | copy[p - *argptr - 1] = 0; | |
2206 | else | |
2207 | copy[p - *argptr] = 0; | |
2208 | ||
f8eba3c6 TT |
2209 | iterate_over_all_matching_symtabs (copy, VAR_DOMAIN, |
2210 | collect_function_symbols, &result, NULL); | |
9ef07c8c | 2211 | |
f8eba3c6 TT |
2212 | if (VEC_empty (symbolp, result)) |
2213 | VEC_free (symbolp, result); | |
2214 | else | |
2215 | { | |
2216 | /* Discard the file name from the arg. */ | |
2217 | *argptr = skip_spaces (p1 + 1); | |
2218 | } | |
9ef07c8c | 2219 | |
f8eba3c6 | 2220 | return result; |
9ef07c8c TT |
2221 | } |
2222 | ||
84fba31b DC |
2223 | \f |
2224 | ||
f8eba3c6 TT |
2225 | /* A helper for decode_all_digits that handles the 'list_mode' case. */ |
2226 | ||
2227 | static void | |
2228 | decode_digits_list_mode (struct linespec_state *self, | |
2229 | struct symtabs_and_lines *values, | |
2230 | struct symtab_and_line val) | |
2231 | { | |
2232 | int ix; | |
2233 | struct symtab *elt; | |
2234 | ||
2235 | gdb_assert (self->list_mode); | |
2236 | ||
2237 | for (ix = 0; VEC_iterate (symtab_p, self->file_symtabs, ix, elt); ++ix) | |
2238 | { | |
2239 | /* The logic above should ensure this. */ | |
2240 | gdb_assert (elt != NULL); | |
2241 | ||
2242 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2243 | ||
2244 | /* Simplistic search just for the list command. */ | |
2245 | val.symtab = find_line_symtab (elt, val.line, NULL, NULL); | |
2246 | if (val.symtab == NULL) | |
2247 | val.symtab = elt; | |
2248 | val.pspace = SYMTAB_PSPACE (elt); | |
2249 | val.pc = 0; | |
2250 | val.explicit_line = 1; | |
2251 | ||
2252 | add_sal_to_sals (self, values, &val, NULL); | |
2253 | } | |
2254 | } | |
2255 | ||
2256 | /* A helper for decode_all_digits that iterates over the symtabs, | |
2257 | adding lines to the VEC. */ | |
2258 | ||
2259 | static void | |
2260 | decode_digits_ordinary (struct linespec_state *self, | |
2261 | int line, | |
2262 | struct symtabs_and_lines *sals, | |
2263 | struct linetable_entry **best_entry) | |
2264 | { | |
2265 | int ix; | |
2266 | struct symtab *elt; | |
2267 | ||
2268 | for (ix = 0; VEC_iterate (symtab_p, self->file_symtabs, ix, elt); ++ix) | |
2269 | { | |
2270 | int i; | |
2271 | VEC (CORE_ADDR) *pcs; | |
2272 | CORE_ADDR pc; | |
2273 | ||
2274 | /* The logic above should ensure this. */ | |
2275 | gdb_assert (elt != NULL); | |
2276 | ||
2277 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2278 | ||
2279 | pcs = find_pcs_for_symtab_line (elt, line, best_entry); | |
2280 | for (i = 0; VEC_iterate (CORE_ADDR, pcs, i, pc); ++i) | |
2281 | { | |
2282 | struct symtab_and_line sal; | |
2283 | ||
2284 | init_sal (&sal); | |
2285 | sal.pspace = SYMTAB_PSPACE (elt); | |
2286 | sal.symtab = elt; | |
2287 | sal.line = line; | |
2288 | sal.pc = pc; | |
2289 | add_sal_to_sals_basic (sals, &sal); | |
2290 | } | |
2291 | ||
2292 | VEC_free (CORE_ADDR, pcs); | |
2293 | } | |
2294 | } | |
2295 | ||
84fba31b DC |
2296 | /* This decodes a line where the argument is all digits (possibly |
2297 | preceded by a sign). Q should point to the end of those digits; | |
2298 | the other arguments are as usual. */ | |
2299 | ||
2300 | static struct symtabs_and_lines | |
f8eba3c6 TT |
2301 | decode_all_digits (struct linespec_state *self, |
2302 | char **argptr, | |
2303 | char *q) | |
84fba31b DC |
2304 | { |
2305 | struct symtabs_and_lines values; | |
2306 | struct symtab_and_line val; | |
f8eba3c6 TT |
2307 | int use_default = 0; |
2308 | char *saved_arg = *argptr; | |
84fba31b DC |
2309 | |
2310 | enum sign | |
2311 | { | |
2312 | none, plus, minus | |
2313 | } | |
2314 | sign = none; | |
2315 | ||
84fba31b | 2316 | init_sal (&val); |
f8eba3c6 TT |
2317 | values.sals = NULL; |
2318 | values.nelts = 0; | |
6c95b8df | 2319 | |
84fba31b DC |
2320 | /* This is where we need to make sure that we have good defaults. |
2321 | We must guarantee that this section of code is never executed | |
2322 | when we are called with just a function name, since | |
2323 | set_default_source_symtab_and_line uses | |
a04257e6 | 2324 | select_source_symtab that calls us with such an argument. */ |
84fba31b | 2325 | |
f8eba3c6 TT |
2326 | if (VEC_length (symtab_p, self->file_symtabs) == 1 |
2327 | && VEC_index (symtab_p, self->file_symtabs, 0) == NULL) | |
84fba31b | 2328 | { |
f8eba3c6 TT |
2329 | set_current_program_space (self->program_space); |
2330 | ||
a04257e6 | 2331 | /* Make sure we have at least a default source file. */ |
84fba31b | 2332 | set_default_source_symtab_and_line (); |
f8eba3c6 TT |
2333 | initialize_defaults (&self->default_symtab, &self->default_line); |
2334 | VEC_pop (symtab_p, self->file_symtabs); | |
2335 | VEC_free (symtab_p, self->file_symtabs); | |
2336 | self->file_symtabs | |
2337 | = collect_symtabs_from_filename (self->default_symtab->filename); | |
2338 | use_default = 1; | |
84fba31b DC |
2339 | } |
2340 | ||
2341 | if (**argptr == '+') | |
2342 | sign = plus, (*argptr)++; | |
2343 | else if (**argptr == '-') | |
2344 | sign = minus, (*argptr)++; | |
2345 | val.line = atoi (*argptr); | |
2346 | switch (sign) | |
2347 | { | |
2348 | case plus: | |
2349 | if (q == *argptr) | |
2350 | val.line = 5; | |
f8eba3c6 TT |
2351 | if (use_default) |
2352 | val.line = self->default_line + val.line; | |
84fba31b DC |
2353 | break; |
2354 | case minus: | |
2355 | if (q == *argptr) | |
2356 | val.line = 15; | |
f8eba3c6 TT |
2357 | if (use_default) |
2358 | val.line = self->default_line - val.line; | |
84fba31b DC |
2359 | else |
2360 | val.line = 1; | |
2361 | break; | |
2362 | case none: | |
2363 | break; /* No need to adjust val.line. */ | |
2364 | } | |
2365 | ||
f8eba3c6 TT |
2366 | *argptr = skip_spaces (q); |
2367 | ||
2368 | if (self->list_mode) | |
2369 | decode_digits_list_mode (self, &values, val); | |
2370 | else | |
2371 | { | |
2372 | struct linetable_entry *best_entry = NULL; | |
2373 | int *filter; | |
2374 | struct block **blocks; | |
2375 | struct cleanup *cleanup; | |
2376 | struct symtabs_and_lines intermediate_results; | |
2377 | int i, j; | |
2378 | ||
2379 | intermediate_results.sals = NULL; | |
2380 | intermediate_results.nelts = 0; | |
2381 | ||
2382 | decode_digits_ordinary (self, val.line, &intermediate_results, | |
2383 | &best_entry); | |
2384 | if (intermediate_results.nelts == 0 && best_entry != NULL) | |
2385 | decode_digits_ordinary (self, best_entry->line, &intermediate_results, | |
2386 | &best_entry); | |
2387 | ||
2388 | cleanup = make_cleanup (xfree, intermediate_results.sals); | |
2389 | ||
2390 | /* For optimized code, compiler can scatter one source line | |
2391 | accross disjoint ranges of PC values, even when no duplicate | |
2392 | functions or inline functions are involved. For example, | |
2393 | 'for (;;)' inside non-template non-inline non-ctor-or-dtor | |
2394 | function can result in two PC ranges. In this case, we don't | |
2395 | want to set breakpoint on first PC of each range. To filter | |
2396 | such cases, we use containing blocks -- for each PC found | |
2397 | above we see if there are other PCs that are in the same | |
2398 | block. If yes, the other PCs are filtered out. */ | |
2399 | ||
2400 | filter = xmalloc (intermediate_results.nelts * sizeof (int)); | |
2401 | make_cleanup (xfree, filter); | |
2402 | blocks = xmalloc (intermediate_results.nelts * sizeof (struct block *)); | |
2403 | make_cleanup (xfree, blocks); | |
2404 | ||
2405 | for (i = 0; i < intermediate_results.nelts; ++i) | |
2406 | { | |
2407 | set_current_program_space (intermediate_results.sals[i].pspace); | |
2408 | ||
2409 | filter[i] = 1; | |
2410 | blocks[i] = block_for_pc_sect (intermediate_results.sals[i].pc, | |
2411 | intermediate_results.sals[i].section); | |
2412 | } | |
2413 | ||
2414 | for (i = 0; i < intermediate_results.nelts; ++i) | |
2415 | { | |
2416 | if (blocks[i] != NULL) | |
2417 | for (j = i + 1; j < intermediate_results.nelts; ++j) | |
2418 | { | |
2419 | if (blocks[j] == blocks[i]) | |
2420 | { | |
2421 | filter[j] = 0; | |
2422 | break; | |
2423 | } | |
2424 | } | |
2425 | } | |
2426 | ||
2427 | for (i = 0; i < intermediate_results.nelts; ++i) | |
2428 | if (filter[i]) | |
2429 | { | |
2430 | struct symbol *sym = (blocks[i] | |
2431 | ? block_containing_function (blocks[i]) | |
2432 | : NULL); | |
2433 | ||
2434 | if (self->funfirstline) | |
2435 | skip_prologue_sal (&intermediate_results.sals[i]); | |
2436 | /* Make sure the line matches the request, not what was | |
2437 | found. */ | |
2438 | intermediate_results.sals[i].line = val.line; | |
2439 | add_sal_to_sals (self, &values, &intermediate_results.sals[i], | |
2440 | sym ? SYMBOL_NATURAL_NAME (sym) : NULL); | |
2441 | } | |
2442 | ||
2443 | do_cleanups (cleanup); | |
2444 | } | |
2445 | ||
2446 | if (values.nelts == 0) | |
2447 | { | |
2448 | if (self->user_filename) | |
2449 | throw_error (NOT_FOUND_ERROR, _("No line %d in file \"%s\"."), | |
2450 | val.line, self->user_filename); | |
2451 | else | |
2452 | throw_error (NOT_FOUND_ERROR, _("No line %d in the current file."), | |
2453 | val.line); | |
2454 | } | |
2455 | ||
2456 | if (self->canonical) | |
2457 | { | |
2458 | char *copy = savestring (saved_arg, q - saved_arg); | |
2459 | ||
2460 | self->canonical->pre_expanded = 1; | |
2461 | gdb_assert (self->user_filename || use_default); | |
2462 | self->canonical->addr_string | |
2463 | = xstrprintf ("%s:%s", (self->user_filename | |
2464 | ? self->user_filename | |
2465 | : self->default_symtab->filename), | |
2466 | copy); | |
2467 | xfree (copy); | |
2468 | } | |
2469 | ||
84fba31b DC |
2470 | return values; |
2471 | } | |
f3c39e76 | 2472 | |
614b3b14 DC |
2473 | \f |
2474 | ||
14e91ac5 DC |
2475 | /* Decode a linespec starting with a dollar sign. */ |
2476 | ||
2477 | static struct symtabs_and_lines | |
f8eba3c6 | 2478 | decode_dollar (struct linespec_state *self, char *copy) |
14e91ac5 | 2479 | { |
4fa62494 | 2480 | LONGEST valx; |
14e91ac5 | 2481 | int index = 0; |
14e91ac5 DC |
2482 | struct symtabs_and_lines values; |
2483 | struct symtab_and_line val; | |
2484 | char *p; | |
2485 | struct symbol *sym; | |
14e91ac5 | 2486 | struct minimal_symbol *msymbol; |
f8eba3c6 TT |
2487 | int ix; |
2488 | struct symtab *elt; | |
14e91ac5 DC |
2489 | |
2490 | p = (copy[1] == '$') ? copy + 2 : copy + 1; | |
2491 | while (*p >= '0' && *p <= '9') | |
2492 | p++; | |
a04257e6 | 2493 | if (!*p) /* Reached end of token without hitting non-digit. */ |
14e91ac5 | 2494 | { |
a04257e6 | 2495 | /* We have a value history reference. */ |
4fa62494 | 2496 | struct value *val_history; |
e0881a8e | 2497 | |
14e91ac5 | 2498 | sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index); |
4fa62494 UW |
2499 | val_history = access_value_history ((copy[1] == '$') ? -index : index); |
2500 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
3e43a32a MS |
2501 | error (_("History values used in line " |
2502 | "specs must have integer values.")); | |
4fa62494 | 2503 | valx = value_as_long (val_history); |
14e91ac5 DC |
2504 | } |
2505 | else | |
2506 | { | |
2507 | /* Not all digits -- may be user variable/function or a | |
a04257e6 | 2508 | convenience variable. */ |
14e91ac5 | 2509 | |
f8eba3c6 TT |
2510 | volatile struct gdb_exception exc; |
2511 | ||
31aba06f DE |
2512 | /* Avoid "may be used uninitialized" warning. */ |
2513 | values.sals = NULL; | |
2514 | values.nelts = 0; | |
2515 | ||
f8eba3c6 TT |
2516 | TRY_CATCH (exc, RETURN_MASK_ERROR) |
2517 | { | |
2518 | values = decode_variable (self, copy); | |
2519 | } | |
2520 | ||
2521 | if (exc.reason == 0) | |
2522 | return values; | |
14e91ac5 | 2523 | |
f8eba3c6 TT |
2524 | if (exc.error != NOT_FOUND_ERROR) |
2525 | throw_exception (exc); | |
14e91ac5 | 2526 | |
a04257e6 | 2527 | /* Not a user variable or function -- must be convenience variable. */ |
4fa62494 | 2528 | if (!get_internalvar_integer (lookup_internalvar (copy + 1), &valx)) |
3e43a32a MS |
2529 | error (_("Convenience variables used in line " |
2530 | "specs must have integer values.")); | |
14e91ac5 DC |
2531 | } |
2532 | ||
2533 | init_sal (&val); | |
2534 | ||
f8eba3c6 TT |
2535 | values.sals = NULL; |
2536 | values.nelts = 0; | |
14e91ac5 | 2537 | |
f8eba3c6 TT |
2538 | for (ix = 0; VEC_iterate (symtab_p, self->file_symtabs, ix, elt); ++ix) |
2539 | { | |
2540 | if (elt == NULL) | |
2541 | { | |
2542 | elt = self->default_symtab; | |
2543 | set_current_program_space (self->program_space); | |
2544 | } | |
2545 | else | |
2546 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2547 | ||
2548 | /* Either history value or convenience value from above, in valx. */ | |
2549 | val.symtab = elt; | |
2550 | val.line = valx; | |
2551 | val.pc = 0; | |
2552 | val.pspace = elt ? SYMTAB_PSPACE (elt) : current_program_space; | |
2553 | ||
2554 | add_sal_to_sals (self, &values, &val, NULL); | |
2555 | } | |
14e91ac5 | 2556 | |
f8eba3c6 TT |
2557 | if (self->canonical) |
2558 | { | |
2559 | self->canonical->pre_expanded = 1; | |
2560 | if (self->user_filename) | |
2561 | self->canonical->addr_string = xstrprintf ("%s:%s", | |
2562 | self->user_filename, copy); | |
2563 | else | |
2564 | self->canonical->addr_string = xstrdup (copy); | |
2565 | } | |
14e91ac5 DC |
2566 | |
2567 | return values; | |
2568 | } | |
2569 | ||
bca02a8a DC |
2570 | \f |
2571 | ||
0f5238ed TT |
2572 | /* A helper for decode_line_1 that tries to find a label. The label |
2573 | is searched for in the current block. | |
f8eba3c6 | 2574 | FUNCTION_SYMBOLS is a list of the enclosing functions; or NULL if none |
9ef07c8c | 2575 | specified. |
0f5238ed TT |
2576 | COPY is the name of the label to find. |
2577 | CANONICAL is the same as the "canonical" argument to decode_line_1. | |
2578 | RESULT is a pointer to a symtabs_and_lines structure which will be | |
2579 | filled in on success. | |
2580 | This function returns 1 if a label was found, 0 otherwise. */ | |
2581 | ||
2582 | static int | |
f8eba3c6 TT |
2583 | decode_label (struct linespec_state *self, |
2584 | VEC (symbolp) *function_symbols, char *copy, | |
7efd8fc2 | 2585 | struct symtabs_and_lines *result) |
0f5238ed | 2586 | { |
f8eba3c6 TT |
2587 | struct symbol *fn_sym; |
2588 | int ix; | |
9ef07c8c | 2589 | |
f8eba3c6 | 2590 | if (function_symbols == NULL) |
9ef07c8c | 2591 | { |
f8eba3c6 TT |
2592 | struct block *block; |
2593 | struct symbol *sym; | |
2594 | struct symtab_and_line sal; | |
2595 | struct symtabs_and_lines values; | |
2596 | ||
2597 | values.nelts = 0; | |
2598 | values.sals = NULL; | |
2599 | ||
2600 | set_current_program_space (self->program_space); | |
2601 | block = get_search_block (NULL); | |
2602 | ||
9ef07c8c TT |
2603 | for (; |
2604 | block && !BLOCK_FUNCTION (block); | |
2605 | block = BLOCK_SUPERBLOCK (block)) | |
2606 | ; | |
2607 | if (!block) | |
2608 | return 0; | |
f8eba3c6 TT |
2609 | fn_sym = BLOCK_FUNCTION (block); |
2610 | ||
2611 | sym = lookup_symbol (copy, block, LABEL_DOMAIN, 0); | |
2612 | ||
2613 | if (sym == NULL) | |
2614 | return 0; | |
2615 | ||
2616 | symbol_to_sal (&sal, self->funfirstline, sym); | |
2617 | add_sal_to_sals (self, &values, &sal, | |
2618 | SYMBOL_NATURAL_NAME (fn_sym)); | |
2619 | ||
2620 | if (self->canonical) | |
2621 | { | |
2622 | self->canonical->special_display = 1; | |
2623 | self->canonical->addr_string | |
2624 | = xstrprintf ("%s:%s", SYMBOL_NATURAL_NAME (fn_sym), | |
2625 | copy); | |
2626 | } | |
2627 | ||
2628 | *result = values; | |
2629 | ||
2630 | return 1; | |
2631 | } | |
2632 | ||
2633 | result->sals = NULL; | |
2634 | result->nelts = 0; | |
2635 | ||
2636 | for (ix = 0; VEC_iterate (symbolp, function_symbols, ix, fn_sym); ++ix) | |
2637 | { | |
2638 | struct block *block; | |
2639 | struct symbol *sym; | |
2640 | ||
2641 | set_current_program_space (SYMTAB_PSPACE (SYMBOL_SYMTAB (fn_sym))); | |
2642 | block = SYMBOL_BLOCK_VALUE (fn_sym); | |
2643 | sym = lookup_symbol (copy, block, LABEL_DOMAIN, 0); | |
2644 | ||
2645 | if (sym != NULL) | |
2646 | { | |
2647 | struct symtab_and_line sal; | |
2648 | char *symname; | |
2649 | ||
2650 | symbol_to_sal (&sal, self->funfirstline, sym); | |
2651 | symname = xstrprintf ("%s:%s", | |
2652 | SYMBOL_NATURAL_NAME (fn_sym), | |
2653 | SYMBOL_NATURAL_NAME (sym)); | |
2654 | add_sal_to_sals (self, result, &sal, symname); | |
2655 | xfree (symname); | |
2656 | } | |
2657 | } | |
2658 | ||
2659 | if (self->canonical && result->nelts > 0) | |
2660 | { | |
2661 | self->canonical->pre_expanded = 1; | |
2662 | self->canonical->special_display = 1; | |
2663 | ||
2664 | gdb_assert (self->user_function); | |
2665 | self->canonical->addr_string | |
2666 | = xstrprintf ("%s:%s", self->user_function, copy); | |
2667 | } | |
2668 | ||
2669 | return result->nelts > 0; | |
2670 | } | |
2671 | ||
2672 | /* A callback used to possibly add a symbol to the results. */ | |
2673 | ||
2674 | static int | |
2675 | collect_symbols (struct symbol *sym, void *data) | |
2676 | { | |
2677 | struct collect_info *info = data; | |
2678 | struct symtab_and_line sal; | |
2679 | ||
07fea4b4 TT |
2680 | if (symbol_to_sal (&sal, info->state->funfirstline, sym) |
2681 | && maybe_add_address (info->state->addr_set, | |
2682 | SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)), | |
2683 | sal.pc)) | |
f8eba3c6 TT |
2684 | add_sal_to_sals (info->state, &info->result, &sal, |
2685 | SYMBOL_NATURAL_NAME (sym)); | |
2686 | ||
2687 | return 1; | |
2688 | } | |
2689 | ||
2690 | /* We've found a minimal symbol MSYMBOL to associate with our | |
2691 | linespec; add it to the result symtabs_and_lines. */ | |
2692 | ||
2693 | static void | |
2694 | minsym_found (struct linespec_state *self, struct objfile *objfile, | |
2695 | struct minimal_symbol *msymbol, | |
2696 | struct symtabs_and_lines *result) | |
2697 | { | |
2698 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
2699 | CORE_ADDR pc; | |
2700 | struct symtab_and_line sal; | |
2701 | ||
2702 | sal = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol), | |
2703 | (struct obj_section *) 0, 0); | |
2704 | sal.section = SYMBOL_OBJ_SECTION (msymbol); | |
2705 | ||
2706 | /* The minimal symbol might point to a function descriptor; | |
2707 | resolve it to the actual code address instead. */ | |
2708 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, ¤t_target); | |
2709 | if (pc != sal.pc) | |
2710 | sal = find_pc_sect_line (pc, NULL, 0); | |
2711 | ||
2712 | if (self->funfirstline) | |
2713 | skip_prologue_sal (&sal); | |
2714 | ||
07fea4b4 TT |
2715 | if (maybe_add_address (self->addr_set, objfile->pspace, sal.pc)) |
2716 | add_sal_to_sals (self, result, &sal, SYMBOL_NATURAL_NAME (msymbol)); | |
f8eba3c6 TT |
2717 | } |
2718 | ||
39b856a4 TT |
2719 | /* A helper struct which just holds a minimal symbol and the object |
2720 | file from which it came. */ | |
f8eba3c6 | 2721 | |
39b856a4 | 2722 | typedef struct minsym_and_objfile |
f8eba3c6 | 2723 | { |
39b856a4 TT |
2724 | struct minimal_symbol *minsym; |
2725 | struct objfile *objfile; | |
2726 | } minsym_and_objfile_d; | |
f8eba3c6 | 2727 | |
39b856a4 TT |
2728 | DEF_VEC_O (minsym_and_objfile_d); |
2729 | ||
2730 | /* A helper struct to pass some data through | |
2731 | iterate_over_minimal_symbols. */ | |
2732 | ||
2733 | struct collect_minsyms | |
2734 | { | |
2735 | /* The objfile we're examining. */ | |
2736 | struct objfile *objfile; | |
2737 | ||
2738 | /* The funfirstline setting from the initial call. */ | |
2739 | int funfirstline; | |
2740 | ||
095bcf5e JB |
2741 | /* The list_mode setting from the initial call. */ |
2742 | int list_mode; | |
2743 | ||
39b856a4 TT |
2744 | /* The resulting symbols. */ |
2745 | VEC (minsym_and_objfile_d) *msyms; | |
2746 | }; | |
2747 | ||
2748 | /* A helper function to classify a minimal_symbol_type according to | |
2749 | priority. */ | |
2750 | ||
2751 | static int | |
2752 | classify_mtype (enum minimal_symbol_type t) | |
2753 | { | |
2754 | switch (t) | |
f8eba3c6 | 2755 | { |
39b856a4 TT |
2756 | case mst_file_text: |
2757 | case mst_file_data: | |
2758 | case mst_file_bss: | |
2759 | /* Intermediate priority. */ | |
2760 | return 1; | |
2761 | ||
2762 | case mst_solib_trampoline: | |
2763 | /* Lowest priority. */ | |
2764 | return 2; | |
2765 | ||
2766 | default: | |
2767 | /* Highest priority. */ | |
2768 | return 0; | |
f8eba3c6 | 2769 | } |
39b856a4 TT |
2770 | } |
2771 | ||
2772 | /* Callback for qsort that sorts symbols by priority. */ | |
2773 | ||
2774 | static int | |
2775 | compare_msyms (const void *a, const void *b) | |
2776 | { | |
2777 | const minsym_and_objfile_d *moa = a; | |
2778 | const minsym_and_objfile_d *mob = b; | |
2779 | enum minimal_symbol_type ta = MSYMBOL_TYPE (moa->minsym); | |
2780 | enum minimal_symbol_type tb = MSYMBOL_TYPE (mob->minsym); | |
2781 | ||
2782 | return classify_mtype (ta) - classify_mtype (tb); | |
2783 | } | |
2784 | ||
2785 | /* Callback for iterate_over_minimal_symbols that adds the symbol to | |
2786 | the result. */ | |
2787 | ||
2788 | static void | |
2789 | add_minsym (struct minimal_symbol *minsym, void *d) | |
2790 | { | |
2791 | struct collect_minsyms *info = d; | |
2792 | minsym_and_objfile_d mo; | |
2793 | ||
095bcf5e JB |
2794 | /* Exclude data symbols when looking for breakpoint locations. */ |
2795 | if (!info->list_mode) | |
2796 | switch (minsym->type) | |
2797 | { | |
2798 | case mst_slot_got_plt: | |
2799 | case mst_data: | |
2800 | case mst_bss: | |
2801 | case mst_abs: | |
2802 | case mst_file_data: | |
2803 | case mst_file_bss: | |
2804 | return; | |
2805 | } | |
2806 | ||
39b856a4 TT |
2807 | mo.minsym = minsym; |
2808 | mo.objfile = info->objfile; | |
2809 | VEC_safe_push (minsym_and_objfile_d, info->msyms, &mo); | |
f8eba3c6 TT |
2810 | } |
2811 | ||
2812 | /* Search minimal symbols in all objfiles for NAME. If SEARCH_PSPACE | |
2813 | is not NULL, the search is restricted to just that program | |
2814 | space. */ | |
2815 | ||
2816 | static void | |
2817 | search_minsyms_for_name (struct collect_info *info, const char *name, | |
2818 | struct program_space *search_pspace) | |
2819 | { | |
2820 | struct objfile *objfile; | |
2821 | struct program_space *pspace; | |
2822 | ||
2823 | ALL_PSPACES (pspace) | |
2824 | { | |
39b856a4 TT |
2825 | struct collect_minsyms local; |
2826 | struct cleanup *cleanup; | |
2827 | ||
f8eba3c6 TT |
2828 | if (search_pspace != NULL && search_pspace != pspace) |
2829 | continue; | |
2830 | if (pspace->executing_startup) | |
2831 | continue; | |
2832 | ||
2833 | set_current_program_space (pspace); | |
2834 | ||
39b856a4 TT |
2835 | memset (&local, 0, sizeof (local)); |
2836 | local.funfirstline = info->state->funfirstline; | |
095bcf5e | 2837 | local.list_mode = info->state->list_mode; |
39b856a4 TT |
2838 | |
2839 | cleanup = make_cleanup (VEC_cleanup (minsym_and_objfile_d), | |
2840 | &local.msyms); | |
2841 | ||
f8eba3c6 TT |
2842 | ALL_OBJFILES (objfile) |
2843 | { | |
39b856a4 TT |
2844 | local.objfile = objfile; |
2845 | iterate_over_minimal_symbols (objfile, name, add_minsym, &local); | |
9ef07c8c | 2846 | } |
39b856a4 TT |
2847 | |
2848 | if (!VEC_empty (minsym_and_objfile_d, local.msyms)) | |
2849 | { | |
2850 | int classification; | |
2851 | int ix; | |
2852 | minsym_and_objfile_d *item; | |
2853 | ||
2854 | qsort (VEC_address (minsym_and_objfile_d, local.msyms), | |
2855 | VEC_length (minsym_and_objfile_d, local.msyms), | |
2856 | sizeof (minsym_and_objfile_d), | |
2857 | compare_msyms); | |
2858 | ||
2859 | /* Now the minsyms are in classification order. So, we walk | |
2860 | over them and process just the minsyms with the same | |
2861 | classification as the very first minsym in the list. */ | |
2862 | item = VEC_index (minsym_and_objfile_d, local.msyms, 0); | |
2863 | classification = classify_mtype (MSYMBOL_TYPE (item->minsym)); | |
2864 | ||
2865 | for (ix = 0; | |
2866 | VEC_iterate (minsym_and_objfile_d, local.msyms, ix, item); | |
2867 | ++ix) | |
2868 | { | |
2869 | if (classify_mtype (MSYMBOL_TYPE (item->minsym)) != classification) | |
2870 | break; | |
2871 | ||
07fea4b4 TT |
2872 | minsym_found (info->state, item->objfile, item->minsym, |
2873 | &info->result); | |
39b856a4 TT |
2874 | } |
2875 | } | |
2876 | ||
2877 | do_cleanups (cleanup); | |
f8eba3c6 TT |
2878 | } |
2879 | } | |
2880 | ||
2881 | /* A helper function to add all symbols matching NAME to INFO. If | |
2882 | PSPACE is not NULL, the search is restricted to just that program | |
2883 | space. */ | |
0f5238ed | 2884 | |
f8eba3c6 TT |
2885 | static void |
2886 | add_matching_symbols_to_info (const char *name, | |
2887 | struct collect_info *info, | |
2888 | struct program_space *pspace) | |
2889 | { | |
2890 | int ix; | |
2891 | struct symtab *elt; | |
0f5238ed | 2892 | |
f8eba3c6 TT |
2893 | for (ix = 0; VEC_iterate (symtab_p, info->state->file_symtabs, ix, elt); ++ix) |
2894 | { | |
2895 | struct symbol *sym; | |
0f5238ed | 2896 | |
f8eba3c6 TT |
2897 | if (elt == NULL) |
2898 | { | |
2899 | iterate_over_all_matching_symtabs (name, VAR_DOMAIN, | |
2900 | collect_symbols, info, | |
2901 | pspace); | |
2902 | search_minsyms_for_name (info, name, pspace); | |
2903 | } | |
2904 | else if (pspace == NULL || pspace == SYMTAB_PSPACE (elt)) | |
2905 | { | |
2906 | /* Program spaces that are executing startup should have | |
2907 | been filtered out earlier. */ | |
2908 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
2909 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2910 | LA_ITERATE_OVER_SYMBOLS (get_search_block (elt), name, | |
2911 | VAR_DOMAIN, collect_symbols, | |
2912 | info); | |
2913 | } | |
2914 | } | |
0f5238ed TT |
2915 | } |
2916 | ||
88d262ca | 2917 | /* Decode a linespec that's a variable. If FILE_SYMTAB is non-NULL, |
58438ac1 | 2918 | look in that symtab's static variables first. */ |
bca02a8a DC |
2919 | |
2920 | static struct symtabs_and_lines | |
f8eba3c6 | 2921 | decode_variable (struct linespec_state *self, char *copy) |
bca02a8a | 2922 | { |
f8eba3c6 TT |
2923 | struct collect_info info; |
2924 | const char *lookup_name; | |
2925 | char *canon; | |
3a93a0c2 | 2926 | struct cleanup *cleanup; |
bca02a8a | 2927 | |
f8eba3c6 TT |
2928 | info.state = self; |
2929 | info.result.sals = NULL; | |
2930 | info.result.nelts = 0; | |
f8eba3c6 TT |
2931 | |
2932 | cleanup = demangle_for_lookup (copy, current_language->la_language, | |
2933 | &lookup_name); | |
2934 | if (current_language->la_language == language_ada) | |
3a93a0c2 | 2935 | { |
f8eba3c6 TT |
2936 | /* In Ada, the symbol lookups are performed using the encoded |
2937 | name rather than the demangled name. */ | |
2938 | lookup_name = ada_name_for_lookup (copy); | |
2939 | make_cleanup (xfree, (void *) lookup_name); | |
3a93a0c2 KS |
2940 | } |
2941 | ||
f8eba3c6 TT |
2942 | canon = cp_canonicalize_string_no_typedefs (lookup_name); |
2943 | if (canon != NULL) | |
3a93a0c2 | 2944 | { |
f8eba3c6 TT |
2945 | make_cleanup (xfree, canon); |
2946 | lookup_name = canon; | |
3a93a0c2 | 2947 | } |
bca02a8a | 2948 | |
f8eba3c6 | 2949 | add_matching_symbols_to_info (lookup_name, &info, NULL); |
bca02a8a | 2950 | |
f8eba3c6 TT |
2951 | if (info.result.nelts > 0) |
2952 | { | |
2953 | if (self->canonical) | |
2954 | { | |
2955 | self->canonical->pre_expanded = 1; | |
2956 | if (self->user_filename) | |
2957 | self->canonical->addr_string | |
2958 | = xstrprintf ("%s:%s", self->user_filename, copy); | |
2959 | else | |
2960 | self->canonical->addr_string = xstrdup (copy); | |
2961 | } | |
2962 | return info.result; | |
2963 | } | |
bca02a8a | 2964 | |
b96e2927 PA |
2965 | if (!have_full_symbols () |
2966 | && !have_partial_symbols () | |
2967 | && !have_minimal_symbols ()) | |
2968 | throw_error (NOT_FOUND_ERROR, | |
2969 | _("No symbol table is loaded. Use the \"file\" command.")); | |
f8eba3c6 TT |
2970 | if (self->user_filename) |
2971 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined in \"%s\"."), | |
2972 | copy, self->user_filename); | |
2973 | else | |
2974 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined."), copy); | |
bca02a8a DC |
2975 | } |
2976 | ||
2977 | ||
14e91ac5 DC |
2978 | \f |
2979 | ||
413dad4d DC |
2980 | /* Now come some functions that are called from multiple places within |
2981 | decode_line_1. */ | |
2982 | ||
f8eba3c6 TT |
2983 | static int |
2984 | symbol_to_sal (struct symtab_and_line *result, | |
2985 | int funfirstline, struct symbol *sym) | |
413dad4d | 2986 | { |
413dad4d | 2987 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
50641945 | 2988 | { |
f8eba3c6 TT |
2989 | *result = find_function_start_sal (sym, funfirstline); |
2990 | return 1; | |
50641945 | 2991 | } |
413dad4d DC |
2992 | else |
2993 | { | |
62853458 | 2994 | if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0) |
413dad4d | 2995 | { |
f8eba3c6 TT |
2996 | init_sal (result); |
2997 | result->symtab = SYMBOL_SYMTAB (sym); | |
2998 | result->line = SYMBOL_LINE (sym); | |
2999 | result->pc = SYMBOL_VALUE_ADDRESS (sym); | |
3000 | result->pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
3001 | result->explicit_pc = 1; | |
3002 | return 1; | |
413dad4d | 3003 | } |
62853458 | 3004 | else if (funfirstline) |
dcf9f4ab | 3005 | { |
f8eba3c6 | 3006 | /* Nothing. */ |
dcf9f4ab | 3007 | } |
62853458 TT |
3008 | else if (SYMBOL_LINE (sym) != 0) |
3009 | { | |
3010 | /* We know its line number. */ | |
f8eba3c6 TT |
3011 | init_sal (result); |
3012 | result->symtab = SYMBOL_SYMTAB (sym); | |
3013 | result->line = SYMBOL_LINE (sym); | |
3014 | result->pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
3015 | return 1; | |
62853458 | 3016 | } |
413dad4d | 3017 | } |
f8eba3c6 TT |
3018 | |
3019 | return 0; | |
413dad4d | 3020 | } |
50641945 | 3021 | |
f8eba3c6 | 3022 | /* See the comment in linespec.h. */ |
50641945 | 3023 | |
f8eba3c6 TT |
3024 | void |
3025 | init_linespec_result (struct linespec_result *lr) | |
413dad4d | 3026 | { |
f8eba3c6 TT |
3027 | memset (lr, 0, sizeof (*lr)); |
3028 | } | |
413dad4d | 3029 | |
f8eba3c6 | 3030 | /* See the comment in linespec.h. */ |
bccdca4a | 3031 | |
f8eba3c6 TT |
3032 | void |
3033 | destroy_linespec_result (struct linespec_result *ls) | |
3034 | { | |
3035 | int i; | |
3036 | struct linespec_sals *lsal; | |
bccdca4a | 3037 | |
f8eba3c6 TT |
3038 | xfree (ls->addr_string); |
3039 | for (i = 0; VEC_iterate (linespec_sals, ls->sals, i, lsal); ++i) | |
3040 | { | |
3041 | xfree (lsal->canonical); | |
3042 | xfree (lsal->sals.sals); | |
3043 | } | |
3044 | VEC_free (linespec_sals, ls->sals); | |
3045 | } | |
e48883f7 | 3046 | |
f8eba3c6 TT |
3047 | /* Cleanup function for a linespec_result. */ |
3048 | ||
3049 | static void | |
3050 | cleanup_linespec_result (void *a) | |
3051 | { | |
3052 | destroy_linespec_result (a); | |
50641945 | 3053 | } |
7efd8fc2 | 3054 | |
f8eba3c6 TT |
3055 | /* See the comment in linespec.h. */ |
3056 | ||
3057 | struct cleanup * | |
3058 | make_cleanup_destroy_linespec_result (struct linespec_result *ls) | |
7efd8fc2 | 3059 | { |
f8eba3c6 | 3060 | return make_cleanup (cleanup_linespec_result, ls); |
7efd8fc2 | 3061 | } |