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