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50641945 | 1 | /* Parser for linespec for the GNU debugger, GDB. |
05ff989b | 2 | |
0b302171 | 3 | Copyright (C) 1986-2005, 2007-2012 Free Software Foundation, Inc. |
50641945 FN |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
50641945 FN |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
50641945 FN |
19 | |
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
c5f0f3d0 FN |
22 | #include "frame.h" |
23 | #include "command.h" | |
50641945 FN |
24 | #include "symfile.h" |
25 | #include "objfiles.h" | |
0378c332 | 26 | #include "source.h" |
50641945 | 27 | #include "demangle.h" |
c5f0f3d0 FN |
28 | #include "value.h" |
29 | #include "completer.h" | |
015a42b4 | 30 | #include "cp-abi.h" |
12907978 | 31 | #include "cp-support.h" |
c38da1af | 32 | #include "parser-defs.h" |
fe898f56 | 33 | #include "block.h" |
d2630e69 | 34 | #include "objc-lang.h" |
b9362cc7 | 35 | #include "linespec.h" |
05ff989b | 36 | #include "exceptions.h" |
53c5240f | 37 | #include "language.h" |
dc67126b NR |
38 | #include "interps.h" |
39 | #include "mi/mi-cmds.h" | |
bccdca4a | 40 | #include "target.h" |
94af9270 | 41 | #include "arch-utils.h" |
c00f8484 KS |
42 | #include <ctype.h> |
43 | #include "cli/cli-utils.h" | |
731971ed | 44 | #include "filenames.h" |
f8eba3c6 TT |
45 | #include "ada-lang.h" |
46 | ||
47 | typedef struct symtab *symtab_p; | |
48 | DEF_VEC_P (symtab_p); | |
49 | ||
50 | typedef struct symbol *symbolp; | |
51 | DEF_VEC_P (symbolp); | |
52 | ||
53 | typedef struct type *typep; | |
54 | DEF_VEC_P (typep); | |
55 | ||
56 | /* An address entry is used to ensure that any given location is only | |
57 | added to the result a single time. It holds an address and the | |
58 | program space from which the address came. */ | |
59 | ||
60 | struct address_entry | |
61 | { | |
62 | struct program_space *pspace; | |
63 | CORE_ADDR addr; | |
64 | }; | |
65 | ||
40e084e1 KS |
66 | /* A helper struct which just holds a minimal symbol and the object |
67 | file from which it came. */ | |
68 | ||
69 | typedef struct minsym_and_objfile | |
70 | { | |
71 | struct minimal_symbol *minsym; | |
72 | struct objfile *objfile; | |
73 | } minsym_and_objfile_d; | |
74 | ||
75 | DEF_VEC_O (minsym_and_objfile_d); | |
76 | ||
77 | /* An enumeration of possible signs for a line offset. */ | |
78 | enum offset_relative_sign | |
79 | { | |
80 | /* No sign */ | |
81 | LINE_OFFSET_NONE, | |
82 | ||
83 | /* A plus sign ("+") */ | |
84 | LINE_OFFSET_PLUS, | |
85 | ||
86 | /* A minus sign ("-") */ | |
87 | LINE_OFFSET_MINUS, | |
88 | ||
89 | /* A special "sign" for unspecified offset. */ | |
90 | LINE_OFFSET_UNKNOWN | |
91 | }; | |
92 | ||
93 | /* A line offset in a linespec. */ | |
94 | ||
95 | struct line_offset | |
96 | { | |
97 | /* Line offset and any specified sign. */ | |
98 | int offset; | |
99 | enum offset_relative_sign sign; | |
100 | }; | |
101 | ||
102 | /* A linespec. Elements of this structure are filled in by a parser | |
103 | (either parse_linespec or some other function). The structure is | |
104 | then converted into SALs by convert_linespec_to_sals. */ | |
105 | ||
106 | struct linespec | |
107 | { | |
108 | /* An expression and the resulting PC. Specifying an expression | |
109 | currently precludes the use of other members. */ | |
110 | ||
111 | /* The expression entered by the user. */ | |
112 | char *expression; | |
113 | ||
114 | /* The resulting PC expression derived from evaluating EXPRESSION. */ | |
115 | CORE_ADDR expr_pc; | |
116 | ||
117 | /* Any specified file symtabs. */ | |
118 | ||
119 | /* The user-supplied source filename or NULL if none was specified. */ | |
120 | char *source_filename; | |
121 | ||
122 | /* The list of symtabs to search to which to limit the search. May not | |
123 | be NULL. If SOURCE_FILENAME is NULL (no user-specified filename), | |
124 | FILE_SYMTABS should contain one single NULL member. This will | |
125 | cause the code to use the default symtab. */ | |
126 | VEC (symtab_p) *file_symtabs; | |
127 | ||
128 | /* The name of a function or method and any matching symbols. */ | |
129 | ||
130 | /* The user-specified function name. If no function name was | |
131 | supplied, this may be NULL. */ | |
132 | char *function_name; | |
133 | ||
134 | /* A list of matching function symbols and minimal symbols. Both lists | |
135 | may be NULL if no matching symbols were found. */ | |
136 | VEC (symbolp) *function_symbols; | |
137 | VEC (minsym_and_objfile_d) *minimal_symbols; | |
138 | ||
139 | /* The name of a label and matching symbols. */ | |
140 | ||
141 | /* The user-specified label name. */ | |
142 | char *label_name; | |
143 | ||
144 | /* A structure of matching label symbols and the corresponding | |
145 | function symbol in which the label was found. Both may be NULL | |
146 | or both must be non-NULL. */ | |
147 | struct | |
148 | { | |
149 | VEC (symbolp) *label_symbols; | |
150 | VEC (symbolp) *function_symbols; | |
151 | } labels; | |
152 | ||
153 | /* Line offset. It may be LINE_OFFSET_UNKNOWN, meaning that no | |
154 | offset was specified. */ | |
155 | struct line_offset line_offset; | |
156 | }; | |
157 | typedef struct linespec *linespec_p; | |
158 | ||
f8eba3c6 TT |
159 | /* An instance of this is used to keep all state while linespec |
160 | operates. This instance is passed around as a 'this' pointer to | |
161 | the various implementation methods. */ | |
162 | ||
163 | struct linespec_state | |
164 | { | |
40e084e1 KS |
165 | /* The language in use during linespec processing. */ |
166 | const struct language_defn *language; | |
167 | ||
f8eba3c6 TT |
168 | /* The program space as seen when the module was entered. */ |
169 | struct program_space *program_space; | |
170 | ||
171 | /* The default symtab to use, if no other symtab is specified. */ | |
172 | struct symtab *default_symtab; | |
173 | ||
174 | /* The default line to use. */ | |
175 | int default_line; | |
176 | ||
f8eba3c6 TT |
177 | /* The 'funfirstline' value that was passed in to decode_line_1 or |
178 | decode_line_full. */ | |
179 | int funfirstline; | |
180 | ||
181 | /* Nonzero if we are running in 'list' mode; see decode_line_list. */ | |
182 | int list_mode; | |
183 | ||
184 | /* The 'canonical' value passed to decode_line_full, or NULL. */ | |
185 | struct linespec_result *canonical; | |
186 | ||
187 | /* Canonical strings that mirror the symtabs_and_lines result. */ | |
188 | char **canonical_names; | |
189 | ||
190 | /* This is a set of address_entry objects which is used to prevent | |
191 | duplicate symbols from being entered into the result. */ | |
192 | htab_t addr_set; | |
193 | }; | |
194 | ||
195 | /* This is a helper object that is used when collecting symbols into a | |
196 | result. */ | |
197 | ||
198 | struct collect_info | |
199 | { | |
200 | /* The linespec object in use. */ | |
201 | struct linespec_state *state; | |
202 | ||
40e084e1 KS |
203 | /* A list of symtabs to which to restrict matches. */ |
204 | VEC (symtab_p) *file_symtabs; | |
205 | ||
f8eba3c6 | 206 | /* The result being accumulated. */ |
40e084e1 KS |
207 | struct |
208 | { | |
209 | VEC (symbolp) *symbols; | |
210 | VEC (minsym_and_objfile_d) *minimal_symbols; | |
211 | } result; | |
f8eba3c6 | 212 | }; |
50641945 | 213 | |
40e084e1 | 214 | /* Token types */ |
50641945 | 215 | |
40e084e1 KS |
216 | enum ls_token_type |
217 | { | |
218 | /* A keyword */ | |
219 | LSTOKEN_KEYWORD = 0, | |
44fe14ab | 220 | |
40e084e1 KS |
221 | /* A colon "separator" */ |
222 | LSTOKEN_COLON, | |
44fe14ab | 223 | |
40e084e1 KS |
224 | /* A string */ |
225 | LSTOKEN_STRING, | |
0960f083 | 226 | |
40e084e1 KS |
227 | /* A number */ |
228 | LSTOKEN_NUMBER, | |
229 | ||
230 | /* A comma */ | |
231 | LSTOKEN_COMMA, | |
232 | ||
233 | /* EOI (end of input) */ | |
234 | LSTOKEN_EOI, | |
235 | ||
236 | /* Consumed token */ | |
237 | LSTOKEN_CONSUMED | |
238 | }; | |
239 | typedef enum ls_token_type linespec_token_type; | |
240 | ||
241 | /* List of keywords */ | |
242 | ||
243 | static const char * const linespec_keywords[] = { "if", "thread", "task" }; | |
244 | ||
245 | /* A token of the linespec lexer */ | |
246 | ||
247 | struct ls_token | |
248 | { | |
249 | /* The type of the token */ | |
250 | linespec_token_type type; | |
251 | ||
252 | /* Data for the token */ | |
253 | union | |
254 | { | |
255 | /* A string, given as a stoken */ | |
256 | struct stoken string; | |
257 | ||
258 | /* A keyword */ | |
259 | const char *keyword; | |
260 | } data; | |
261 | }; | |
262 | typedef struct ls_token linespec_token; | |
263 | ||
264 | #define LS_TOKEN_STOKEN(TOK) (TOK).data.string | |
265 | #define LS_TOKEN_KEYWORD(TOK) (TOK).data.keyword | |
266 | ||
267 | /* An instance of the linespec parser. */ | |
268 | ||
269 | struct ls_parser | |
270 | { | |
271 | /* Lexer internal data */ | |
272 | struct | |
273 | { | |
274 | /* Save head of input stream. */ | |
275 | char *saved_arg; | |
d2630e69 | 276 | |
40e084e1 KS |
277 | /* Head of the input stream. */ |
278 | char **stream; | |
279 | #define PARSER_STREAM(P) (*(P)->lexer.stream) | |
614b3b14 | 280 | |
40e084e1 KS |
281 | /* The current token. */ |
282 | linespec_token current; | |
283 | } lexer; | |
93d91629 | 284 | |
40e084e1 KS |
285 | /* Is the entire linespec quote-enclosed? */ |
286 | int is_quote_enclosed; | |
287 | ||
288 | /* The state of the parse. */ | |
289 | struct linespec_state state; | |
290 | #define PARSER_STATE(PPTR) (&(PPTR)->state) | |
4224873a | 291 | |
40e084e1 KS |
292 | /* The result of the parse. */ |
293 | struct linespec result; | |
294 | #define PARSER_RESULT(PPTR) (&(PPTR)->result) | |
295 | }; | |
296 | typedef struct ls_parser linespec_parser; | |
50641945 | 297 | |
40e084e1 | 298 | /* Prototypes for local functions. */ |
50641945 | 299 | |
40e084e1 KS |
300 | static void initialize_defaults (struct symtab **default_symtab, |
301 | int *default_line); | |
50641945 | 302 | |
40e084e1 | 303 | static CORE_ADDR linespec_expression_to_pc (char **exp_ptr); |
aee8d8ba | 304 | |
40e084e1 KS |
305 | static struct symtabs_and_lines decode_objc (struct linespec_state *self, |
306 | linespec_p ls, | |
307 | char **argptr); | |
aee8d8ba | 308 | |
40e084e1 | 309 | static VEC (symtab_p) *symtabs_from_filename (const char *); |
50641945 | 310 | |
40e084e1 KS |
311 | static VEC (symbolp) *find_label_symbols (struct linespec_state *self, |
312 | VEC (symbolp) *function_symbols, | |
313 | VEC (symbolp) **label_funcs_ret, | |
314 | const char *name); | |
50641945 | 315 | |
40e084e1 KS |
316 | void find_linespec_symbols (struct linespec_state *self, |
317 | VEC (symtab_p) *file_symtabs, | |
318 | const char *name, | |
319 | VEC (symbolp) **symbols, | |
320 | VEC (minsym_and_objfile_d) **minsyms); | |
f8eba3c6 | 321 | |
40e084e1 KS |
322 | static struct line_offset |
323 | linespec_parse_variable (struct linespec_state *self, | |
324 | const char *variable); | |
889f28e2 | 325 | |
f8eba3c6 TT |
326 | static int symbol_to_sal (struct symtab_and_line *result, |
327 | int funfirstline, struct symbol *sym); | |
50641945 | 328 | |
f8eba3c6 TT |
329 | static void add_matching_symbols_to_info (const char *name, |
330 | struct collect_info *info, | |
331 | struct program_space *pspace); | |
f3c39e76 | 332 | |
f8eba3c6 TT |
333 | static void add_all_symbol_names_from_pspace (struct collect_info *info, |
334 | struct program_space *pspace, | |
335 | VEC (const_char_ptr) *names); | |
9ef07c8c | 336 | |
40e084e1 | 337 | static VEC (symtab_p) *collect_symtabs_from_filename (const char *file); |
84fba31b | 338 | |
40e084e1 KS |
339 | static void decode_digits_ordinary (struct linespec_state *self, |
340 | linespec_p ls, | |
341 | int line, | |
342 | struct symtabs_and_lines *sals, | |
343 | struct linetable_entry **best_entry); | |
14e91ac5 | 344 | |
40e084e1 KS |
345 | static void decode_digits_list_mode (struct linespec_state *self, |
346 | linespec_p ls, | |
347 | struct symtabs_and_lines *values, | |
348 | struct symtab_and_line val); | |
0f5238ed | 349 | |
40e084e1 KS |
350 | static void minsym_found (struct linespec_state *self, struct objfile *objfile, |
351 | struct minimal_symbol *msymbol, | |
352 | struct symtabs_and_lines *result); | |
bca02a8a | 353 | |
40e084e1 | 354 | static int compare_symbols (const void *a, const void *b); |
413dad4d | 355 | |
40e084e1 | 356 | static int compare_msymbols (const void *a, const void *b); |
413dad4d | 357 | |
40e084e1 | 358 | static const char *find_toplevel_char (const char *s, char c); |
f8eba3c6 | 359 | |
40e084e1 KS |
360 | /* Permitted quote characters for the parser. This is different from the |
361 | completer's quote characters to allow backward compatibility with the | |
362 | previous parser. */ | |
363 | static const char *const linespec_quote_characters = "\"\'"; | |
f8eba3c6 | 364 | |
40e084e1 KS |
365 | /* Lexer functions. */ |
366 | ||
367 | /* Lex a number from the input in PARSER. This only supports | |
368 | decimal numbers. */ | |
369 | ||
370 | static linespec_token | |
371 | linespec_lexer_lex_number (linespec_parser *parser) | |
372 | { | |
373 | linespec_token token; | |
374 | ||
375 | token.type = LSTOKEN_NUMBER; | |
376 | LS_TOKEN_STOKEN (token).length = 0; | |
377 | LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser); | |
378 | ||
379 | /* Keep any sign at the start of the stream. */ | |
380 | if (*PARSER_STREAM (parser) == '+' || *PARSER_STREAM (parser) == '-') | |
381 | { | |
382 | ++LS_TOKEN_STOKEN (token).length; | |
383 | ++(PARSER_STREAM (parser)); | |
384 | } | |
385 | ||
386 | while (isdigit (*PARSER_STREAM (parser))) | |
387 | { | |
388 | ++LS_TOKEN_STOKEN (token).length; | |
389 | ++(PARSER_STREAM (parser)); | |
f8eba3c6 | 390 | } |
40e084e1 KS |
391 | |
392 | return token; | |
f8eba3c6 TT |
393 | } |
394 | ||
40e084e1 KS |
395 | /* Does P represent one of the keywords? If so, return |
396 | the keyword. If not, return NULL. */ | |
f8eba3c6 | 397 | |
40e084e1 KS |
398 | static const char * |
399 | linespec_lexer_lex_keyword (const char *p) | |
f8eba3c6 | 400 | { |
40e084e1 | 401 | int i; |
f8eba3c6 | 402 | |
40e084e1 KS |
403 | if (p != NULL) |
404 | { | |
405 | for (i = 0; i < ARRAY_SIZE (linespec_keywords); ++i) | |
406 | { | |
407 | int len = strlen (linespec_keywords[i]); | |
408 | ||
409 | /* If P begins with one of the keywords and the next | |
410 | character is not a valid identifier character, | |
411 | we have found a keyword. */ | |
412 | if (strncmp (p, linespec_keywords[i], len) == 0 | |
413 | && !(isalnum (p[len]) || p[len] == '_')) | |
414 | return linespec_keywords[i]; | |
415 | } | |
416 | } | |
417 | ||
418 | return NULL; | |
f8eba3c6 TT |
419 | } |
420 | ||
40e084e1 KS |
421 | /* Does STRING represent an Ada operator? If so, return the length |
422 | of the decoded operator name. If not, return 0. */ | |
f8eba3c6 TT |
423 | |
424 | static int | |
40e084e1 | 425 | is_ada_operator (const char *string) |
f8eba3c6 | 426 | { |
40e084e1 | 427 | const struct ada_opname_map *mapping; |
f8eba3c6 | 428 | |
40e084e1 KS |
429 | for (mapping = ada_opname_table; |
430 | mapping->encoded != NULL | |
431 | && strncmp (mapping->decoded, string, | |
432 | strlen (mapping->decoded)) != 0; ++mapping) | |
433 | ; | |
434 | ||
435 | return mapping->decoded == NULL ? 0 : strlen (mapping->decoded); | |
f8eba3c6 TT |
436 | } |
437 | ||
40e084e1 KS |
438 | /* Find QUOTE_CHAR in STRING, accounting for the ':' terminal. Return |
439 | the location of QUOTE_CHAR, or NULL if not found. */ | |
f8eba3c6 | 440 | |
40e084e1 KS |
441 | static const char * |
442 | skip_quote_char (const char *string, char quote_char) | |
f8eba3c6 | 443 | { |
40e084e1 | 444 | const char *p, *last; |
f8eba3c6 | 445 | |
40e084e1 KS |
446 | p = last = find_toplevel_char (string, quote_char); |
447 | while (p && *p != '\0' && *p != ':') | |
448 | { | |
449 | p = find_toplevel_char (p, quote_char); | |
450 | if (p != NULL) | |
451 | last = p++; | |
452 | } | |
f8eba3c6 | 453 | |
40e084e1 | 454 | return last; |
f8eba3c6 | 455 | } |
50641945 | 456 | |
40e084e1 KS |
457 | /* Make a writable copy of the string given in TOKEN, trimming |
458 | any trailing whitespace. */ | |
50641945 | 459 | |
40e084e1 KS |
460 | static char * |
461 | copy_token_string (linespec_token token) | |
50641945 | 462 | { |
40e084e1 | 463 | char *str, *s; |
e0881a8e | 464 | |
40e084e1 KS |
465 | if (token.type == LSTOKEN_KEYWORD) |
466 | return xstrdup (LS_TOKEN_KEYWORD (token)); | |
255e7dbf | 467 | |
40e084e1 KS |
468 | str = savestring (LS_TOKEN_STOKEN (token).ptr, |
469 | LS_TOKEN_STOKEN (token).length); | |
470 | s = remove_trailing_whitespace (str, str + LS_TOKEN_STOKEN (token).length); | |
471 | *s = '\0'; | |
e0881a8e | 472 | |
40e084e1 KS |
473 | return str; |
474 | } | |
255e7dbf | 475 | |
40e084e1 | 476 | /* Does P represent the end of a quote-enclosed linespec? */ |
f3a5f1de | 477 | |
40e084e1 KS |
478 | static int |
479 | is_closing_quote_enclosed (const char *p) | |
480 | { | |
481 | if (strchr (linespec_quote_characters, *p)) | |
482 | ++p; | |
483 | p = skip_spaces ((char *) p); | |
484 | return (*p == '\0' || linespec_lexer_lex_keyword (p)); | |
50641945 FN |
485 | } |
486 | ||
40e084e1 KS |
487 | /* Find the end of the parameter list that starts with *INPUT. |
488 | This helper function assists with lexing string segments | |
489 | which might contain valid (non-terminating) commas. */ | |
481860b3 | 490 | |
40e084e1 KS |
491 | static char * |
492 | find_parameter_list_end (char *input) | |
481860b3 | 493 | { |
40e084e1 KS |
494 | char end_char, start_char; |
495 | int depth; | |
496 | char *p; | |
481860b3 | 497 | |
40e084e1 KS |
498 | start_char = *input; |
499 | if (start_char == '(') | |
500 | end_char = ')'; | |
501 | else if (start_char == '<') | |
502 | end_char = '>'; | |
503 | else | |
504 | return NULL; | |
481860b3 | 505 | |
40e084e1 KS |
506 | p = input; |
507 | depth = 0; | |
508 | while (*p) | |
481860b3 | 509 | { |
40e084e1 KS |
510 | if (*p == start_char) |
511 | ++depth; | |
512 | else if (*p == end_char) | |
513 | { | |
514 | if (--depth == 0) | |
515 | { | |
516 | ++p; | |
517 | break; | |
518 | } | |
519 | } | |
520 | ++p; | |
481860b3 | 521 | } |
40e084e1 KS |
522 | |
523 | return p; | |
481860b3 GB |
524 | } |
525 | ||
74ccd7f5 | 526 | |
40e084e1 KS |
527 | /* Lex a string from the input in PARSER. */ |
528 | ||
529 | static linespec_token | |
530 | linespec_lexer_lex_string (linespec_parser *parser) | |
74ccd7f5 | 531 | { |
40e084e1 KS |
532 | linespec_token token; |
533 | char *start = PARSER_STREAM (parser); | |
74ccd7f5 | 534 | |
40e084e1 | 535 | token.type = LSTOKEN_STRING; |
74ccd7f5 | 536 | |
40e084e1 KS |
537 | /* If the input stream starts with a quote character, skip to the next |
538 | quote character, regardless of the content. */ | |
539 | if (strchr (linespec_quote_characters, *PARSER_STREAM (parser))) | |
540 | { | |
541 | const char *end; | |
542 | char quote_char = *PARSER_STREAM (parser); | |
50641945 | 543 | |
40e084e1 KS |
544 | /* Special case: Ada operators. */ |
545 | if (PARSER_STATE (parser)->language->la_language == language_ada | |
546 | && quote_char == '\"') | |
547 | { | |
548 | int len = is_ada_operator (PARSER_STREAM (parser)); | |
50641945 | 549 | |
40e084e1 KS |
550 | if (len != 0) |
551 | { | |
552 | /* The input is an Ada operator. Return the quoted string | |
553 | as-is. */ | |
554 | LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser); | |
555 | LS_TOKEN_STOKEN (token).length = len; | |
556 | PARSER_STREAM (parser) += len; | |
557 | return token; | |
558 | } | |
f8eba3c6 | 559 | |
40e084e1 KS |
560 | /* The input does not represent an Ada operator -- fall through |
561 | to normal quoted string handling. */ | |
562 | } | |
f8eba3c6 | 563 | |
40e084e1 KS |
564 | /* Skip past the beginning quote. */ |
565 | ++(PARSER_STREAM (parser)); | |
74ccd7f5 | 566 | |
40e084e1 KS |
567 | /* Mark the start of the string. */ |
568 | LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser); | |
f8eba3c6 | 569 | |
40e084e1 KS |
570 | /* Skip to the ending quote. */ |
571 | end = skip_quote_char (PARSER_STREAM (parser), quote_char); | |
572 | ||
573 | /* Error if the input did not terminate properly. */ | |
574 | if (end == NULL) | |
575 | error (_("unmatched quote")); | |
576 | ||
577 | /* Skip over the ending quote and mark the length of the string. */ | |
578 | PARSER_STREAM (parser) = (char *) ++end; | |
579 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - 2 - start; | |
580 | } | |
581 | else | |
582 | { | |
583 | char *p; | |
584 | ||
585 | /* Otherwise, only identifier characters are permitted. | |
586 | Spaces are the exception. In general, we keep spaces, | |
587 | but only if the next characters in the input do not resolve | |
588 | to one of the keywords. | |
589 | ||
590 | This allows users to forgo quoting CV-qualifiers, template arguments, | |
591 | and similar common language constructs. */ | |
592 | ||
593 | while (1) | |
594 | { | |
595 | if (isspace (*PARSER_STREAM (parser))) | |
596 | { | |
597 | p = skip_spaces (PARSER_STREAM (parser)); | |
598 | if (linespec_lexer_lex_keyword (p) != NULL) | |
599 | { | |
600 | LS_TOKEN_STOKEN (token).ptr = start; | |
601 | LS_TOKEN_STOKEN (token).length | |
602 | = PARSER_STREAM (parser) - start; | |
603 | return token; | |
604 | } | |
605 | ||
606 | /* Advance past the whitespace. */ | |
607 | PARSER_STREAM (parser) = p; | |
608 | } | |
609 | ||
610 | /* If the next character is EOI or (single) ':', the | |
611 | string is complete; return the token. */ | |
612 | if (*PARSER_STREAM (parser) == 0) | |
613 | { | |
614 | LS_TOKEN_STOKEN (token).ptr = start; | |
615 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
616 | return token; | |
617 | } | |
618 | else if (PARSER_STREAM (parser)[0] == ':') | |
619 | { | |
620 | /* Do not tokenize the C++ scope operator. */ | |
621 | if (PARSER_STREAM (parser)[1] == ':') | |
622 | ++(PARSER_STREAM (parser)); | |
623 | ||
624 | /* Do not tokenify if the input length so far is one | |
625 | (i.e, a single-letter drive name) and the next character | |
626 | is a directory separator. This allows Windows-style | |
627 | paths to be recognized as filenames without quoting it. */ | |
628 | else if ((PARSER_STREAM (parser) - start) != 1 | |
629 | || !IS_DIR_SEPARATOR (PARSER_STREAM (parser)[1])) | |
630 | { | |
631 | LS_TOKEN_STOKEN (token).ptr = start; | |
632 | LS_TOKEN_STOKEN (token).length | |
633 | = PARSER_STREAM (parser) - start; | |
634 | return token; | |
635 | } | |
636 | } | |
637 | /* Special case: permit quote-enclosed linespecs. */ | |
638 | else if (parser->is_quote_enclosed | |
639 | && strchr (linespec_quote_characters, | |
640 | *PARSER_STREAM (parser)) | |
641 | && is_closing_quote_enclosed (PARSER_STREAM (parser))) | |
642 | { | |
643 | LS_TOKEN_STOKEN (token).ptr = start; | |
644 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
645 | return token; | |
646 | } | |
647 | /* Because commas may terminate a linespec and appear in | |
648 | the middle of valid string input, special cases for | |
649 | '<' and '(' are necessary. */ | |
650 | else if (*PARSER_STREAM (parser) == '<' | |
651 | || *PARSER_STREAM (parser) == '(') | |
652 | { | |
653 | char *p; | |
654 | ||
655 | p = find_parameter_list_end (PARSER_STREAM (parser)); | |
656 | if (p != NULL) | |
657 | { | |
658 | PARSER_STREAM (parser) = p; | |
659 | continue; | |
660 | } | |
661 | } | |
662 | /* Commas are terminators, but not if they are part of an | |
663 | operator name. */ | |
664 | else if (*PARSER_STREAM (parser) == ',') | |
665 | { | |
666 | if ((PARSER_STATE (parser)->language->la_language | |
667 | == language_cplus) | |
668 | && (PARSER_STREAM (parser) - start) > 8 | |
669 | /* strlen ("operator") */) | |
670 | { | |
671 | char *p = strstr (start, "operator"); | |
672 | ||
673 | if (p != NULL && is_operator_name (p)) | |
674 | { | |
675 | /* This is an operator name. Keep going. */ | |
676 | ++(PARSER_STREAM (parser)); | |
677 | continue; | |
678 | } | |
679 | } | |
680 | ||
681 | /* Comma terminates the string. */ | |
682 | LS_TOKEN_STOKEN (token).ptr = start; | |
683 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
684 | return token; | |
685 | } | |
686 | ||
687 | /* Advance the stream. */ | |
688 | ++(PARSER_STREAM (parser)); | |
689 | } | |
690 | } | |
691 | ||
692 | return token; | |
693 | } | |
694 | ||
695 | /* Lex a single linespec token from PARSER. */ | |
696 | ||
697 | static linespec_token | |
698 | linespec_lexer_lex_one (linespec_parser *parser) | |
699 | { | |
700 | const char *keyword; | |
701 | ||
702 | if (parser->lexer.current.type == LSTOKEN_CONSUMED) | |
703 | { | |
704 | /* Skip any whitespace. */ | |
705 | PARSER_STREAM (parser) = skip_spaces (PARSER_STREAM (parser)); | |
706 | ||
707 | /* Check for a keyword. */ | |
708 | keyword = linespec_lexer_lex_keyword (PARSER_STREAM (parser)); | |
709 | if (keyword != NULL) | |
710 | { | |
711 | parser->lexer.current.type = LSTOKEN_KEYWORD; | |
712 | LS_TOKEN_KEYWORD (parser->lexer.current) = keyword; | |
713 | return parser->lexer.current; | |
714 | } | |
715 | ||
716 | /* Handle other tokens. */ | |
717 | switch (*PARSER_STREAM (parser)) | |
718 | { | |
719 | case 0: | |
720 | parser->lexer.current.type = LSTOKEN_EOI; | |
721 | break; | |
722 | ||
723 | case '+': case '-': | |
724 | case '0': case '1': case '2': case '3': case '4': | |
725 | case '5': case '6': case '7': case '8': case '9': | |
726 | parser->lexer.current = linespec_lexer_lex_number (parser); | |
727 | break; | |
728 | ||
729 | case ':': | |
730 | /* If we have a scope operator, lex the input as a string. | |
731 | Otherwise, return LSTOKEN_COLON. */ | |
732 | if (PARSER_STREAM (parser)[1] == ':') | |
733 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
734 | else | |
735 | { | |
736 | parser->lexer.current.type = LSTOKEN_COLON; | |
737 | ++(PARSER_STREAM (parser)); | |
738 | } | |
739 | break; | |
740 | ||
741 | case '\'': case '\"': | |
742 | /* Special case: permit quote-enclosed linespecs. */ | |
743 | if (parser->is_quote_enclosed | |
744 | && is_closing_quote_enclosed (PARSER_STREAM (parser))) | |
745 | { | |
746 | ++(PARSER_STREAM (parser)); | |
747 | parser->lexer.current.type = LSTOKEN_EOI; | |
748 | } | |
749 | else | |
750 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
751 | break; | |
752 | ||
753 | case ',': | |
754 | parser->lexer.current.type = LSTOKEN_COMMA; | |
755 | LS_TOKEN_STOKEN (parser->lexer.current).ptr | |
756 | = PARSER_STREAM (parser); | |
757 | LS_TOKEN_STOKEN (parser->lexer.current).length = 1; | |
758 | ++(PARSER_STREAM (parser)); | |
759 | break; | |
760 | ||
761 | default: | |
762 | /* If the input is not a number, it must be a string. | |
763 | [Keywords were already considered above.] */ | |
764 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
765 | break; | |
766 | } | |
767 | } | |
768 | ||
769 | return parser->lexer.current; | |
770 | } | |
771 | ||
772 | /* Consume the current token and return the next token in PARSER's | |
773 | input stream. */ | |
774 | ||
775 | static linespec_token | |
776 | linespec_lexer_consume_token (linespec_parser *parser) | |
777 | { | |
778 | parser->lexer.current.type = LSTOKEN_CONSUMED; | |
779 | return linespec_lexer_lex_one (parser); | |
780 | } | |
781 | ||
782 | /* Return the next token without consuming the current token. */ | |
783 | ||
784 | static linespec_token | |
785 | linespec_lexer_peek_token (linespec_parser *parser) | |
786 | { | |
787 | linespec_token next; | |
788 | char *saved_stream = PARSER_STREAM (parser); | |
789 | linespec_token saved_token = parser->lexer.current; | |
790 | ||
791 | next = linespec_lexer_consume_token (parser); | |
792 | PARSER_STREAM (parser) = saved_stream; | |
793 | parser->lexer.current = saved_token; | |
794 | return next; | |
795 | } | |
796 | ||
797 | /* Helper functions. */ | |
798 | ||
799 | /* Add SAL to SALS. */ | |
800 | ||
801 | static void | |
802 | add_sal_to_sals_basic (struct symtabs_and_lines *sals, | |
803 | struct symtab_and_line *sal) | |
804 | { | |
805 | ++sals->nelts; | |
806 | sals->sals = xrealloc (sals->sals, sals->nelts * sizeof (sals->sals[0])); | |
807 | sals->sals[sals->nelts - 1] = *sal; | |
808 | } | |
809 | ||
810 | /* Add SAL to SALS, and also update SELF->CANONICAL_NAMES to reflect | |
811 | the new sal, if needed. If not NULL, SYMNAME is the name of the | |
812 | symbol to use when constructing the new canonical name. */ | |
813 | ||
814 | static void | |
815 | add_sal_to_sals (struct linespec_state *self, | |
816 | struct symtabs_and_lines *sals, | |
817 | struct symtab_and_line *sal, | |
818 | const char *symname) | |
819 | { | |
820 | add_sal_to_sals_basic (sals, sal); | |
821 | ||
822 | if (self->canonical) | |
823 | { | |
824 | char *canonical_name = NULL; | |
825 | ||
826 | self->canonical_names = xrealloc (self->canonical_names, | |
827 | sals->nelts * sizeof (char *)); | |
828 | if (sal->symtab && sal->symtab->filename) | |
829 | { | |
830 | char *filename = sal->symtab->filename; | |
831 | ||
832 | /* Note that the filter doesn't have to be a valid linespec | |
833 | input. We only apply the ":LINE" treatment to Ada for | |
834 | the time being. */ | |
835 | if (symname != NULL && sal->line != 0 | |
836 | && self->language->la_language == language_ada) | |
837 | canonical_name = xstrprintf ("%s:%s:%d", filename, symname, | |
838 | sal->line); | |
839 | else if (symname != NULL) | |
840 | canonical_name = xstrprintf ("%s:%s", filename, symname); | |
841 | else | |
842 | canonical_name = xstrprintf ("%s:%d", filename, sal->line); | |
843 | } | |
844 | ||
845 | self->canonical_names[sals->nelts - 1] = canonical_name; | |
846 | } | |
847 | } | |
848 | ||
849 | /* A hash function for address_entry. */ | |
850 | ||
851 | static hashval_t | |
852 | hash_address_entry (const void *p) | |
853 | { | |
854 | const struct address_entry *aep = p; | |
855 | hashval_t hash; | |
856 | ||
857 | hash = iterative_hash_object (aep->pspace, 0); | |
858 | return iterative_hash_object (aep->addr, hash); | |
859 | } | |
860 | ||
861 | /* An equality function for address_entry. */ | |
862 | ||
863 | static int | |
864 | eq_address_entry (const void *a, const void *b) | |
865 | { | |
866 | const struct address_entry *aea = a; | |
867 | const struct address_entry *aeb = b; | |
868 | ||
869 | return aea->pspace == aeb->pspace && aea->addr == aeb->addr; | |
870 | } | |
871 | ||
872 | /* Check whether the address, represented by PSPACE and ADDR, is | |
873 | already in the set. If so, return 0. Otherwise, add it and return | |
874 | 1. */ | |
875 | ||
876 | static int | |
877 | maybe_add_address (htab_t set, struct program_space *pspace, CORE_ADDR addr) | |
878 | { | |
879 | struct address_entry e, *p; | |
880 | void **slot; | |
881 | ||
882 | e.pspace = pspace; | |
883 | e.addr = addr; | |
884 | slot = htab_find_slot (set, &e, INSERT); | |
885 | if (*slot) | |
886 | return 0; | |
887 | ||
888 | p = XNEW (struct address_entry); | |
889 | memcpy (p, &e, sizeof (struct address_entry)); | |
890 | *slot = p; | |
891 | ||
892 | return 1; | |
893 | } | |
894 | ||
895 | /* A callback function and the additional data to call it with. */ | |
896 | ||
897 | struct symbol_and_data_callback | |
898 | { | |
899 | /* The callback to use. */ | |
900 | symbol_found_callback_ftype *callback; | |
901 | ||
902 | /* Data to be passed to the callback. */ | |
903 | void *data; | |
904 | }; | |
905 | ||
906 | /* A helper for iterate_over_all_matching_symtabs that is used to | |
907 | restrict calls to another callback to symbols representing inline | |
908 | symbols only. */ | |
909 | ||
910 | static int | |
911 | iterate_inline_only (struct symbol *sym, void *d) | |
912 | { | |
913 | if (SYMBOL_INLINED (sym)) | |
914 | { | |
915 | struct symbol_and_data_callback *cad = d; | |
916 | ||
917 | return cad->callback (sym, cad->data); | |
918 | } | |
919 | return 1; /* Continue iterating. */ | |
920 | } | |
921 | ||
922 | /* Some data for the expand_symtabs_matching callback. */ | |
923 | ||
924 | struct symbol_matcher_data | |
925 | { | |
926 | /* The lookup name against which symbol name should be compared. */ | |
927 | const char *lookup_name; | |
928 | ||
929 | /* The routine to be used for comparison. */ | |
930 | symbol_name_cmp_ftype symbol_name_cmp; | |
931 | }; | |
932 | ||
933 | /* A helper for iterate_over_all_matching_symtabs that is passed as a | |
934 | callback to the expand_symtabs_matching method. */ | |
935 | ||
936 | static int | |
937 | iterate_name_matcher (const char *name, void *d) | |
938 | { | |
939 | const struct symbol_matcher_data *data = d; | |
940 | ||
941 | if (data->symbol_name_cmp (name, data->lookup_name) == 0) | |
942 | return 1; /* Expand this symbol's symbol table. */ | |
943 | return 0; /* Skip this symbol. */ | |
944 | } | |
945 | ||
946 | /* A helper that walks over all matching symtabs in all objfiles and | |
947 | calls CALLBACK for each symbol matching NAME. If SEARCH_PSPACE is | |
948 | not NULL, then the search is restricted to just that program | |
949 | space. If INCLUDE_INLINE is nonzero then symbols representing | |
950 | inlined instances of functions will be included in the result. */ | |
951 | ||
952 | static void | |
953 | iterate_over_all_matching_symtabs (struct linespec_state *state, | |
954 | const char *name, | |
955 | const domain_enum domain, | |
956 | symbol_found_callback_ftype *callback, | |
957 | void *data, | |
958 | struct program_space *search_pspace, | |
959 | int include_inline) | |
960 | { | |
961 | struct objfile *objfile; | |
962 | struct program_space *pspace; | |
963 | struct symbol_matcher_data matcher_data; | |
964 | ||
965 | matcher_data.lookup_name = name; | |
966 | matcher_data.symbol_name_cmp = | |
967 | state->language->la_get_symbol_name_cmp != NULL | |
968 | ? state->language->la_get_symbol_name_cmp (name) | |
969 | : strcmp_iw; | |
970 | ||
971 | ALL_PSPACES (pspace) | |
972 | { | |
973 | if (search_pspace != NULL && search_pspace != pspace) | |
974 | continue; | |
975 | if (pspace->executing_startup) | |
f8eba3c6 TT |
976 | continue; |
977 | ||
978 | set_current_program_space (pspace); | |
50641945 | 979 | |
f8eba3c6 TT |
980 | ALL_OBJFILES (objfile) |
981 | { | |
982 | struct symtab *symtab; | |
983 | ||
984 | if (objfile->sf) | |
985 | objfile->sf->qf->expand_symtabs_matching (objfile, NULL, | |
986 | iterate_name_matcher, | |
987 | ALL_DOMAIN, | |
74ccd7f5 | 988 | &matcher_data); |
f8eba3c6 TT |
989 | |
990 | ALL_OBJFILE_SYMTABS (objfile, symtab) | |
991 | { | |
992 | if (symtab->primary) | |
993 | { | |
994 | struct block *block; | |
50641945 | 995 | |
f8eba3c6 TT |
996 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK); |
997 | LA_ITERATE_OVER_SYMBOLS (block, name, domain, callback, data); | |
481860b3 GB |
998 | |
999 | if (include_inline) | |
1000 | { | |
1001 | struct symbol_and_data_callback cad = { callback, data }; | |
1002 | int i; | |
1003 | ||
1004 | for (i = FIRST_LOCAL_BLOCK; | |
1005 | i < BLOCKVECTOR_NBLOCKS (BLOCKVECTOR (symtab)); i++) | |
1006 | { | |
1007 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), i); | |
1008 | LA_ITERATE_OVER_SYMBOLS (block, name, domain, | |
1009 | iterate_inline_only, &cad); | |
1010 | } | |
1011 | } | |
f8eba3c6 TT |
1012 | } |
1013 | } | |
1014 | } | |
1015 | } | |
50641945 FN |
1016 | } |
1017 | ||
e8eb7bc5 KS |
1018 | /* Returns the block to be used for symbol searches for the given SYMTAB, |
1019 | which may be NULL. */ | |
1020 | ||
1021 | static struct block * | |
1022 | get_search_block (struct symtab *symtab) | |
1023 | { | |
1024 | struct block *block; | |
1025 | ||
1026 | if (symtab != NULL) | |
1027 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK); | |
1028 | else | |
1029 | { | |
1030 | enum language save_language; | |
1031 | ||
1032 | /* get_selected_block can change the current language when there is | |
1033 | no selected frame yet. */ | |
1034 | save_language = current_language->la_language; | |
1035 | block = get_selected_block (0); | |
1036 | set_language (save_language); | |
1037 | } | |
1038 | ||
1039 | return block; | |
1040 | } | |
1041 | ||
f8eba3c6 | 1042 | /* A helper for find_method. This finds all methods in type T which |
40e084e1 | 1043 | match NAME. It adds matching symbol names to RESULT_NAMES, and |
f8eba3c6 | 1044 | adds T's direct superclasses to SUPERCLASSES. */ |
50641945 | 1045 | |
f8eba3c6 TT |
1046 | static void |
1047 | find_methods (struct type *t, const char *name, | |
1048 | VEC (const_char_ptr) **result_names, | |
1049 | VEC (typep) **superclasses) | |
50641945 FN |
1050 | { |
1051 | int i1 = 0; | |
1052 | int ibase; | |
0d5cff50 | 1053 | const char *class_name = type_name_no_tag (t); |
c00f8484 | 1054 | |
50641945 FN |
1055 | /* Ignore this class if it doesn't have a name. This is ugly, but |
1056 | unless we figure out how to get the physname without the name of | |
1057 | the class, then the loop can't do any good. */ | |
f8eba3c6 | 1058 | if (class_name) |
50641945 FN |
1059 | { |
1060 | int method_counter; | |
5c717440 | 1061 | int name_len = strlen (name); |
50641945 | 1062 | |
8bd1f2c6 | 1063 | CHECK_TYPEDEF (t); |
50641945 FN |
1064 | |
1065 | /* Loop over each method name. At this level, all overloads of a name | |
1066 | are counted as a single name. There is an inner loop which loops over | |
1067 | each overload. */ | |
1068 | ||
1069 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
1070 | method_counter >= 0; | |
1071 | --method_counter) | |
1072 | { | |
0d5cff50 | 1073 | const char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
50641945 FN |
1074 | char dem_opname[64]; |
1075 | ||
1076 | if (strncmp (method_name, "__", 2) == 0 || | |
1077 | strncmp (method_name, "op", 2) == 0 || | |
1078 | strncmp (method_name, "type", 4) == 0) | |
1079 | { | |
1080 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
1081 | method_name = dem_opname; | |
1082 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
1083 | method_name = dem_opname; | |
1084 | } | |
1085 | ||
f8eba3c6 TT |
1086 | if (strcmp_iw (method_name, name) == 0) |
1087 | { | |
1088 | int field_counter; | |
aee8d8ba | 1089 | |
f8eba3c6 TT |
1090 | for (field_counter = (TYPE_FN_FIELDLIST_LENGTH (t, method_counter) |
1091 | - 1); | |
1092 | field_counter >= 0; | |
1093 | --field_counter) | |
1094 | { | |
1095 | struct fn_field *f; | |
1096 | const char *phys_name; | |
1097 | ||
1098 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
1099 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
1100 | continue; | |
1101 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
1102 | VEC_safe_push (const_char_ptr, *result_names, phys_name); | |
1103 | } | |
1104 | } | |
aee8d8ba DC |
1105 | } |
1106 | } | |
1107 | ||
f8eba3c6 TT |
1108 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) |
1109 | VEC_safe_push (typep, *superclasses, TYPE_BASECLASS (t, ibase)); | |
50641945 FN |
1110 | } |
1111 | ||
50641945 FN |
1112 | /* Find an instance of the character C in the string S that is outside |
1113 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
1114 | strings. Also, ignore the char within a template name, like a ',' |
1115 | within foo<int, int>. */ | |
1116 | ||
40e084e1 KS |
1117 | static const char * |
1118 | find_toplevel_char (const char *s, char c) | |
50641945 FN |
1119 | { |
1120 | int quoted = 0; /* zero if we're not in quotes; | |
1121 | '"' if we're in a double-quoted string; | |
1122 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 1123 | int depth = 0; /* Number of unclosed parens we've seen. */ |
40e084e1 | 1124 | const char *scan; |
50641945 FN |
1125 | |
1126 | for (scan = s; *scan; scan++) | |
1127 | { | |
1128 | if (quoted) | |
1129 | { | |
1130 | if (*scan == quoted) | |
1131 | quoted = 0; | |
1132 | else if (*scan == '\\' && *(scan + 1)) | |
1133 | scan++; | |
1134 | } | |
1135 | else if (*scan == c && ! quoted && depth == 0) | |
1136 | return scan; | |
1137 | else if (*scan == '"' || *scan == '\'') | |
1138 | quoted = *scan; | |
8120c9d5 | 1139 | else if (*scan == '(' || *scan == '<') |
50641945 | 1140 | depth++; |
8120c9d5 | 1141 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
1142 | depth--; |
1143 | } | |
1144 | ||
1145 | return 0; | |
1146 | } | |
1147 | ||
40e084e1 KS |
1148 | /* The string equivalent of find_toplevel_char. Returns a pointer |
1149 | to the location of NEEDLE in HAYSTACK, ignoring any occurrences | |
1150 | inside "()" and "<>". Returns NULL if NEEDLE was not found. */ | |
889f28e2 | 1151 | |
40e084e1 KS |
1152 | static const char * |
1153 | find_toplevel_string (const char *haystack, const char *needle) | |
889f28e2 | 1154 | { |
40e084e1 KS |
1155 | const char *s = haystack; |
1156 | ||
1157 | do | |
1158 | { | |
1159 | s = find_toplevel_char (s, *needle); | |
1160 | ||
1161 | if (s != NULL) | |
1162 | { | |
1163 | /* Found first char in HAYSTACK; check rest of string. */ | |
1164 | if (strncmp (s, needle, strlen (needle)) == 0) | |
1165 | return s; | |
1166 | ||
1167 | /* Didn't find it; loop over HAYSTACK, looking for the next | |
1168 | instance of the first character of NEEDLE. */ | |
1169 | ++s; | |
1170 | } | |
1171 | } | |
1172 | while (s != NULL && *s != '\0'); | |
1173 | ||
1174 | /* NEEDLE was not found in HAYSTACK. */ | |
1175 | return NULL; | |
889f28e2 AF |
1176 | } |
1177 | ||
f8eba3c6 TT |
1178 | /* Given FILTERS, a list of canonical names, filter the sals in RESULT |
1179 | and store the result in SELF->CANONICAL. */ | |
50641945 | 1180 | |
f8eba3c6 TT |
1181 | static void |
1182 | filter_results (struct linespec_state *self, | |
1183 | struct symtabs_and_lines *result, | |
1184 | VEC (const_char_ptr) *filters) | |
1185 | { | |
1186 | int i; | |
1187 | const char *name; | |
1188 | ||
1189 | for (i = 0; VEC_iterate (const_char_ptr, filters, i, name); ++i) | |
1190 | { | |
1191 | struct linespec_sals lsal; | |
1192 | int j; | |
1193 | ||
1194 | memset (&lsal, 0, sizeof (lsal)); | |
1195 | ||
1196 | for (j = 0; j < result->nelts; ++j) | |
1197 | { | |
1198 | if (strcmp (name, self->canonical_names[j]) == 0) | |
1199 | add_sal_to_sals_basic (&lsal.sals, &result->sals[j]); | |
1200 | } | |
1201 | ||
1202 | if (lsal.sals.nelts > 0) | |
1203 | { | |
1204 | lsal.canonical = xstrdup (name); | |
1205 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
1206 | } | |
1207 | } | |
1208 | ||
1209 | self->canonical->pre_expanded = 0; | |
1210 | } | |
1211 | ||
1212 | /* Store RESULT into SELF->CANONICAL. */ | |
1213 | ||
1214 | static void | |
1215 | convert_results_to_lsals (struct linespec_state *self, | |
1216 | struct symtabs_and_lines *result) | |
50641945 | 1217 | { |
f8eba3c6 TT |
1218 | struct linespec_sals lsal; |
1219 | ||
1220 | lsal.canonical = NULL; | |
1221 | lsal.sals = *result; | |
1222 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
1223 | } | |
1224 | ||
1225 | /* Handle multiple results in RESULT depending on SELECT_MODE. This | |
1226 | will either return normally, throw an exception on multiple | |
1227 | results, or present a menu to the user. On return, the SALS vector | |
1228 | in SELF->CANONICAL is set up properly. */ | |
1229 | ||
1230 | static void | |
1231 | decode_line_2 (struct linespec_state *self, | |
1232 | struct symtabs_and_lines *result, | |
1233 | const char *select_mode) | |
1234 | { | |
1235 | const char *iter; | |
1236 | char *args, *prompt; | |
50641945 | 1237 | int i; |
50641945 | 1238 | struct cleanup *old_chain; |
f8eba3c6 TT |
1239 | VEC (const_char_ptr) *item_names = NULL, *filters = NULL; |
1240 | struct get_number_or_range_state state; | |
50641945 | 1241 | |
f8eba3c6 TT |
1242 | gdb_assert (select_mode != multiple_symbols_all); |
1243 | gdb_assert (self->canonical != NULL); | |
50641945 | 1244 | |
f8eba3c6 TT |
1245 | old_chain = make_cleanup (VEC_cleanup (const_char_ptr), &item_names); |
1246 | make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
1247 | for (i = 0; i < result->nelts; ++i) | |
50641945 | 1248 | { |
f8eba3c6 TT |
1249 | int j, found = 0; |
1250 | const char *iter; | |
1251 | ||
1252 | gdb_assert (self->canonical_names[i] != NULL); | |
1253 | for (j = 0; VEC_iterate (const_char_ptr, item_names, j, iter); ++j) | |
1254 | { | |
1255 | if (strcmp (iter, self->canonical_names[i]) == 0) | |
1256 | { | |
1257 | found = 1; | |
1258 | break; | |
1259 | } | |
1260 | } | |
1261 | ||
1262 | if (!found) | |
1263 | VEC_safe_push (const_char_ptr, item_names, self->canonical_names[i]); | |
50641945 FN |
1264 | } |
1265 | ||
f8eba3c6 TT |
1266 | if (select_mode == multiple_symbols_cancel |
1267 | && VEC_length (const_char_ptr, item_names) > 1) | |
1268 | error (_("canceled because the command is ambiguous\n" | |
1269 | "See set/show multiple-symbol.")); | |
1270 | ||
1271 | if (select_mode == multiple_symbols_all | |
1272 | || VEC_length (const_char_ptr, item_names) == 1) | |
50641945 | 1273 | { |
f8eba3c6 TT |
1274 | do_cleanups (old_chain); |
1275 | convert_results_to_lsals (self, result); | |
1276 | return; | |
50641945 FN |
1277 | } |
1278 | ||
e0a4d108 KS |
1279 | /* Sort the list of method names alphabetically. */ |
1280 | qsort (VEC_address (const_char_ptr, item_names), | |
1281 | VEC_length (const_char_ptr, item_names), | |
1282 | sizeof (const_char_ptr), compare_strings); | |
1283 | ||
f8eba3c6 TT |
1284 | printf_unfiltered (_("[0] cancel\n[1] all\n")); |
1285 | for (i = 0; VEC_iterate (const_char_ptr, item_names, i, iter); ++i) | |
1286 | printf_unfiltered ("[%d] %s\n", i + 2, iter); | |
1287 | ||
1288 | prompt = getenv ("PS2"); | |
1289 | if (prompt == NULL) | |
50641945 | 1290 | { |
f8eba3c6 | 1291 | prompt = "> "; |
50641945 | 1292 | } |
f8eba3c6 | 1293 | args = command_line_input (prompt, 0, "overload-choice"); |
50641945 FN |
1294 | |
1295 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 1296 | error_no_arg (_("one or more choice numbers")); |
50641945 | 1297 | |
f8eba3c6 TT |
1298 | init_number_or_range (&state, args); |
1299 | while (!state.finished) | |
50641945 FN |
1300 | { |
1301 | int num; | |
1302 | ||
f8eba3c6 | 1303 | num = get_number_or_range (&state); |
50641945 FN |
1304 | |
1305 | if (num == 0) | |
8a3fe4f8 | 1306 | error (_("canceled")); |
50641945 FN |
1307 | else if (num == 1) |
1308 | { | |
f8eba3c6 TT |
1309 | /* We intentionally make this result in a single breakpoint, |
1310 | contrary to what older versions of gdb did. The | |
1311 | rationale is that this lets a user get the | |
1312 | multiple_symbols_all behavior even with the 'ask' | |
1313 | setting; and he can get separate breakpoints by entering | |
1314 | "2-57" at the query. */ | |
1315 | do_cleanups (old_chain); | |
1316 | convert_results_to_lsals (self, result); | |
1317 | return; | |
50641945 FN |
1318 | } |
1319 | ||
f8eba3c6 TT |
1320 | num -= 2; |
1321 | if (num >= VEC_length (const_char_ptr, item_names)) | |
1322 | printf_unfiltered (_("No choice number %d.\n"), num); | |
50641945 FN |
1323 | else |
1324 | { | |
f8eba3c6 TT |
1325 | const char *elt = VEC_index (const_char_ptr, item_names, num); |
1326 | ||
1327 | if (elt != NULL) | |
50641945 | 1328 | { |
f8eba3c6 TT |
1329 | VEC_safe_push (const_char_ptr, filters, elt); |
1330 | VEC_replace (const_char_ptr, item_names, num, NULL); | |
50641945 FN |
1331 | } |
1332 | else | |
1333 | { | |
3e43a32a MS |
1334 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
1335 | num); | |
50641945 FN |
1336 | } |
1337 | } | |
50641945 | 1338 | } |
f8eba3c6 TT |
1339 | |
1340 | filter_results (self, result, filters); | |
1341 | do_cleanups (old_chain); | |
50641945 | 1342 | } |
94af9270 | 1343 | |
40e084e1 | 1344 | \f |
3d50dd94 | 1345 | |
40e084e1 KS |
1346 | /* The parser of linespec itself. */ |
1347 | ||
1348 | /* Throw an appropriate error when SYMBOL is not found (optionally in | |
1349 | FILENAME). */ | |
1350 | ||
1351 | static void ATTRIBUTE_NORETURN | |
1352 | symbol_not_found_error (char *symbol, char *filename) | |
3d50dd94 | 1353 | { |
40e084e1 KS |
1354 | if (symbol == NULL) |
1355 | symbol = ""; | |
1356 | ||
1357 | if (!have_full_symbols () | |
1358 | && !have_partial_symbols () | |
1359 | && !have_minimal_symbols ()) | |
1360 | throw_error (NOT_FOUND_ERROR, | |
1361 | _("No symbol table is loaded. Use the \"file\" command.")); | |
1362 | ||
1363 | /* If SYMBOL starts with '$', the user attempted to either lookup | |
1364 | a function/variable in his code starting with '$' or an internal | |
1365 | variable of that name. Since we do not know which, be concise and | |
1366 | explain both possibilities. */ | |
1367 | if (*symbol == '$') | |
1368 | { | |
1369 | if (filename) | |
1370 | throw_error (NOT_FOUND_ERROR, | |
1371 | _("Undefined convenience variable or function \"%s\" " | |
1372 | "not defined in \"%s\"."), symbol, filename); | |
1373 | else | |
1374 | throw_error (NOT_FOUND_ERROR, | |
1375 | _("Undefined convenience variable or function \"%s\" " | |
1376 | "not defined."), symbol); | |
1377 | } | |
1378 | else | |
1379 | { | |
1380 | if (filename) | |
1381 | throw_error (NOT_FOUND_ERROR, | |
1382 | _("Function \"%s\" not defined in \"%s\"."), | |
1383 | symbol, filename); | |
1384 | else | |
1385 | throw_error (NOT_FOUND_ERROR, | |
1386 | _("Function \"%s\" not defined."), symbol); | |
1387 | } | |
3d50dd94 JK |
1388 | } |
1389 | ||
40e084e1 KS |
1390 | /* Throw an appropriate error when an unexpected token is encountered |
1391 | in the input. */ | |
94af9270 | 1392 | |
40e084e1 KS |
1393 | static void ATTRIBUTE_NORETURN |
1394 | unexpected_linespec_error (linespec_parser *parser) | |
94af9270 | 1395 | { |
40e084e1 KS |
1396 | linespec_token token; |
1397 | static const char * token_type_strings[] | |
1398 | = {"keyword", "colon", "string", "number", "comma", "end of input"}; | |
94af9270 | 1399 | |
40e084e1 KS |
1400 | /* Get the token that generated the error. */ |
1401 | token = linespec_lexer_lex_one (parser); | |
94af9270 | 1402 | |
40e084e1 KS |
1403 | /* Finally, throw the error. */ |
1404 | if (token.type == LSTOKEN_STRING || token.type == LSTOKEN_NUMBER | |
1405 | || token.type == LSTOKEN_KEYWORD) | |
94af9270 | 1406 | { |
40e084e1 KS |
1407 | char *string; |
1408 | struct cleanup *cleanup; | |
1409 | ||
1410 | string = copy_token_string (token); | |
1411 | cleanup = make_cleanup (xfree, string); | |
1412 | throw_error (GENERIC_ERROR, | |
1413 | _("malformed linespec error: unexpected %s, \"%s\""), | |
1414 | token_type_strings[token.type], string); | |
1415 | } | |
1416 | else | |
1417 | throw_error (GENERIC_ERROR, | |
1418 | _("malformed linespec error: unexpected %s"), | |
1419 | token_type_strings[token.type]); | |
1420 | } | |
1421 | ||
1422 | /* Parse and return a line offset in STRING. */ | |
1423 | ||
1424 | static struct line_offset | |
1425 | linespec_parse_line_offset (char *string) | |
1426 | { | |
1427 | struct line_offset line_offset = {0, LINE_OFFSET_NONE}; | |
1428 | ||
1429 | if (*string == '+') | |
1430 | { | |
1431 | line_offset.sign = LINE_OFFSET_PLUS; | |
1432 | ++string; | |
1433 | } | |
1434 | else if (*string == '-') | |
1435 | { | |
1436 | line_offset.sign = LINE_OFFSET_MINUS; | |
1437 | ++string; | |
1438 | } | |
1439 | ||
1440 | /* Right now, we only allow base 10 for offsets. */ | |
1441 | line_offset.offset = atoi (string); | |
1442 | return line_offset; | |
1443 | } | |
1444 | ||
1445 | /* Parse the basic_spec in PARSER's input. */ | |
1446 | ||
1447 | static void | |
1448 | linespec_parse_basic (linespec_parser *parser) | |
1449 | { | |
1450 | char *name; | |
1451 | linespec_token token; | |
1452 | VEC (symbolp) *symbols, *labels; | |
1453 | VEC (minsym_and_objfile_d) *minimal_symbols; | |
1454 | struct cleanup *cleanup; | |
1455 | ||
1456 | /* Get the next token. */ | |
1457 | token = linespec_lexer_lex_one (parser); | |
1458 | ||
1459 | /* If it is EOI or KEYWORD, issue an error. */ | |
1460 | if (token.type == LSTOKEN_KEYWORD || token.type == LSTOKEN_EOI) | |
1461 | unexpected_linespec_error (parser); | |
1462 | /* If it is a LSTOKEN_NUMBER, we have an offset. */ | |
1463 | else if (token.type == LSTOKEN_NUMBER) | |
1464 | { | |
1465 | /* Record the line offset and get the next token. */ | |
1466 | name = copy_token_string (token); | |
1467 | cleanup = make_cleanup (xfree, name); | |
1468 | PARSER_RESULT (parser)->line_offset = linespec_parse_line_offset (name); | |
1469 | do_cleanups (cleanup); | |
1470 | ||
1471 | /* Get the next token. */ | |
1472 | token = linespec_lexer_consume_token (parser); | |
1473 | ||
1474 | /* If the next token is a comma, stop parsing and return. */ | |
1475 | if (token.type == LSTOKEN_COMMA) | |
1476 | return; | |
1477 | ||
1478 | /* If the next token is anything but EOI or KEYWORD, issue | |
1479 | an error. */ | |
1480 | if (token.type != LSTOKEN_KEYWORD && token.type != LSTOKEN_EOI) | |
1481 | unexpected_linespec_error (parser); | |
1482 | } | |
1483 | ||
1484 | if (token.type == LSTOKEN_KEYWORD || token.type == LSTOKEN_EOI) | |
1485 | return; | |
1486 | ||
1487 | /* Next token must be LSTOKEN_STRING. */ | |
1488 | if (token.type != LSTOKEN_STRING) | |
1489 | unexpected_linespec_error (parser); | |
1490 | ||
1491 | /* The current token will contain the name of a function, method, | |
1492 | or label. */ | |
1493 | name = copy_token_string (token); | |
1494 | cleanup = make_cleanup (xfree, name); | |
1495 | ||
1496 | /* Try looking it up as a function/method. */ | |
1497 | find_linespec_symbols (PARSER_STATE (parser), | |
1498 | PARSER_RESULT (parser)->file_symtabs, name, | |
1499 | &symbols, &minimal_symbols); | |
1500 | ||
1501 | if (symbols != NULL || minimal_symbols != NULL) | |
1502 | { | |
1503 | PARSER_RESULT (parser)->function_symbols = symbols; | |
1504 | PARSER_RESULT (parser)->minimal_symbols = minimal_symbols; | |
1505 | PARSER_RESULT (parser)->function_name = name; | |
1506 | symbols = NULL; | |
1507 | discard_cleanups (cleanup); | |
1508 | } | |
1509 | else | |
1510 | { | |
1511 | /* NAME was not a function or a method. So it must be a label | |
1512 | name. */ | |
1513 | labels = find_label_symbols (PARSER_STATE (parser), NULL, | |
1514 | &symbols, name); | |
1515 | if (labels != NULL) | |
94af9270 | 1516 | { |
40e084e1 KS |
1517 | PARSER_RESULT (parser)->labels.label_symbols = labels; |
1518 | PARSER_RESULT (parser)->labels.function_symbols = symbols; | |
1519 | PARSER_RESULT (parser)->label_name = name; | |
1520 | symbols = NULL; | |
1521 | discard_cleanups (cleanup); | |
1522 | } | |
1523 | else | |
1524 | { | |
1525 | /* The name is also not a label. Abort parsing. Do not throw | |
1526 | an error here. parse_linespec will do it for us. */ | |
1527 | ||
1528 | /* Save a copy of the name we were trying to lookup. */ | |
1529 | PARSER_RESULT (parser)->function_name = name; | |
1530 | discard_cleanups (cleanup); | |
1531 | return; | |
1532 | } | |
1533 | } | |
1534 | ||
1535 | /* Get the next token. */ | |
1536 | token = linespec_lexer_consume_token (parser); | |
1537 | ||
1538 | if (token.type == LSTOKEN_COLON) | |
1539 | { | |
1540 | /* User specified a label or a lineno. */ | |
1541 | token = linespec_lexer_consume_token (parser); | |
1542 | ||
1543 | if (token.type == LSTOKEN_NUMBER) | |
1544 | { | |
1545 | /* User specified an offset. Record the line offset and | |
1546 | get the next token. */ | |
1547 | name = copy_token_string (token); | |
1548 | cleanup = make_cleanup (xfree, name); | |
1549 | PARSER_RESULT (parser)->line_offset | |
1550 | = linespec_parse_line_offset (name); | |
1551 | do_cleanups (cleanup); | |
1552 | ||
1553 | /* Ge the next token. */ | |
1554 | token = linespec_lexer_consume_token (parser); | |
1555 | } | |
1556 | else if (token.type == LSTOKEN_STRING) | |
1557 | { | |
1558 | /* Grab a copy of the label's name and look it up. */ | |
1559 | name = copy_token_string (token); | |
1560 | cleanup = make_cleanup (xfree, name); | |
1561 | labels = find_label_symbols (PARSER_STATE (parser), | |
1562 | PARSER_RESULT (parser)->function_symbols, | |
1563 | &symbols, name); | |
1564 | ||
1565 | if (labels != NULL) | |
94af9270 | 1566 | { |
40e084e1 KS |
1567 | PARSER_RESULT (parser)->labels.label_symbols = labels; |
1568 | PARSER_RESULT (parser)->labels.function_symbols = symbols; | |
1569 | PARSER_RESULT (parser)->label_name = name; | |
1570 | symbols = NULL; | |
1571 | discard_cleanups (cleanup); | |
1572 | } | |
1573 | else | |
1574 | { | |
1575 | /* We don't know what it was, but it isn't a label. */ | |
1576 | throw_error (NOT_FOUND_ERROR, | |
1577 | _("No label \"%s\" defined in function \"%s\"."), | |
1578 | name, PARSER_RESULT (parser)->function_name); | |
1579 | } | |
1580 | ||
1581 | /* Check for a line offset. */ | |
1582 | token = linespec_lexer_consume_token (parser); | |
1583 | if (token.type == LSTOKEN_COLON) | |
1584 | { | |
1585 | /* Get the next token. */ | |
1586 | token = linespec_lexer_consume_token (parser); | |
1587 | ||
1588 | /* It must be a line offset. */ | |
1589 | if (token.type != LSTOKEN_NUMBER) | |
1590 | unexpected_linespec_error (parser); | |
1591 | ||
1592 | /* Record the lione offset and get the next token. */ | |
1593 | name = copy_token_string (token); | |
1594 | cleanup = make_cleanup (xfree, name); | |
1595 | ||
1596 | PARSER_RESULT (parser)->line_offset | |
1597 | = linespec_parse_line_offset (name); | |
1598 | do_cleanups (cleanup); | |
1599 | ||
1600 | /* Get the next token. */ | |
1601 | token = linespec_lexer_consume_token (parser); | |
94af9270 KS |
1602 | } |
1603 | } | |
40e084e1 KS |
1604 | else |
1605 | { | |
1606 | /* Trailing ':' in the input. Issue an error. */ | |
1607 | unexpected_linespec_error (parser); | |
1608 | } | |
94af9270 | 1609 | } |
40e084e1 | 1610 | } |
94af9270 | 1611 | |
40e084e1 KS |
1612 | /* Canonicalize the linespec contained in LS. The result is saved into |
1613 | STATE->canonical. */ | |
1614 | ||
1615 | static void | |
1616 | canonicalize_linespec (struct linespec_state *state, linespec_p ls) | |
1617 | { | |
1618 | /* If canonicalization was not requested, no need to do anything. */ | |
1619 | if (!state->canonical) | |
1620 | return; | |
1621 | ||
1622 | /* Shortcut expressions, which can only appear by themselves. */ | |
1623 | if (ls->expression != NULL) | |
1624 | state->canonical->addr_string = xstrdup (ls->expression); | |
1625 | else | |
1626 | { | |
1627 | struct ui_file *buf; | |
1628 | int need_colon = 0; | |
1629 | ||
1630 | buf = mem_fileopen (); | |
1631 | if (ls->source_filename) | |
1632 | { | |
1633 | fputs_unfiltered (ls->source_filename, buf); | |
1634 | need_colon = 1; | |
1635 | } | |
1636 | ||
1637 | if (ls->function_name) | |
1638 | { | |
1639 | if (need_colon) | |
1640 | fputc_unfiltered (':', buf); | |
1641 | fputs_unfiltered (ls->function_name, buf); | |
1642 | need_colon = 1; | |
1643 | } | |
1644 | ||
1645 | if (ls->label_name) | |
1646 | { | |
1647 | if (need_colon) | |
1648 | fputc_unfiltered (':', buf); | |
1649 | ||
1650 | if (ls->function_name == NULL) | |
1651 | { | |
1652 | struct symbol *s; | |
1653 | ||
1654 | /* No function was specified, so add the symbol name. */ | |
1655 | gdb_assert (ls->labels.function_symbols != NULL | |
1656 | && (VEC_length (symbolp, ls->labels.function_symbols) | |
1657 | == 1)); | |
1658 | s = VEC_index (symbolp, ls->labels.function_symbols, 0); | |
1659 | fputs_unfiltered (SYMBOL_NATURAL_NAME (s), buf); | |
1660 | fputc_unfiltered (':', buf); | |
1661 | } | |
1662 | ||
1663 | fputs_unfiltered (ls->label_name, buf); | |
1664 | need_colon = 1; | |
1665 | state->canonical->special_display = 1; | |
1666 | } | |
1667 | ||
1668 | if (ls->line_offset.sign != LINE_OFFSET_UNKNOWN) | |
1669 | { | |
1670 | if (need_colon) | |
1671 | fputc_unfiltered (':', buf); | |
1672 | fprintf_filtered (buf, "%s%d", | |
1673 | (ls->line_offset.sign == LINE_OFFSET_NONE ? "" | |
1674 | : (ls->line_offset.sign | |
1675 | == LINE_OFFSET_PLUS ? "+" : "-")), | |
1676 | ls->line_offset.offset); | |
1677 | } | |
1678 | ||
1679 | state->canonical->addr_string = ui_file_xstrdup (buf, NULL); | |
1680 | ui_file_delete (buf); | |
1681 | } | |
94af9270 | 1682 | } |
c00f8484 | 1683 | |
40e084e1 | 1684 | /* Given a line offset in LS, construct the relevant SALs. */ |
c00f8484 | 1685 | |
40e084e1 KS |
1686 | static struct symtabs_and_lines |
1687 | create_sals_line_offset (struct linespec_state *self, | |
1688 | linespec_p ls) | |
c00f8484 | 1689 | { |
40e084e1 KS |
1690 | struct symtabs_and_lines values; |
1691 | struct symtab_and_line val; | |
1692 | int use_default = 0; | |
c00f8484 | 1693 | |
40e084e1 KS |
1694 | init_sal (&val); |
1695 | values.sals = NULL; | |
1696 | values.nelts = 0; | |
1697 | ||
1698 | /* This is where we need to make sure we have good defaults. | |
1699 | We must guarantee that this section of code is never executed | |
1700 | when we are called with just a function anme, since | |
1701 | set_default_source_symtab_and_line uses | |
1702 | select_source_symtab that calls us with such an argument. */ | |
1703 | ||
1704 | if (VEC_length (symtab_p, ls->file_symtabs) == 1 | |
1705 | && VEC_index (symtab_p, ls->file_symtabs, 0) == NULL) | |
3d50dd94 | 1706 | { |
40e084e1 | 1707 | set_current_program_space (self->program_space); |
c00f8484 | 1708 | |
40e084e1 KS |
1709 | /* Make sure we have at least a default source line. */ |
1710 | set_default_source_symtab_and_line (); | |
1711 | initialize_defaults (&self->default_symtab, &self->default_line); | |
1712 | VEC_pop (symtab_p, ls->file_symtabs); | |
1713 | VEC_free (symtab_p, ls->file_symtabs); | |
1714 | ls->file_symtabs | |
1715 | = collect_symtabs_from_filename (self->default_symtab->filename); | |
1716 | use_default = 1; | |
1717 | } | |
c00f8484 | 1718 | |
40e084e1 KS |
1719 | val.line = ls->line_offset.offset; |
1720 | switch (ls->line_offset.sign) | |
1721 | { | |
1722 | case LINE_OFFSET_PLUS: | |
1723 | if (ls->line_offset.offset == 0) | |
1724 | val.line = 5; | |
1725 | if (use_default) | |
1726 | val.line = self->default_line + val.line; | |
1727 | break; | |
1728 | ||
1729 | case LINE_OFFSET_MINUS: | |
1730 | if (ls->line_offset.offset == 0) | |
1731 | val.line = 15; | |
1732 | if (use_default) | |
1733 | val.line = self->default_line - val.line; | |
1734 | else | |
1735 | val.line = -val.line; | |
1736 | break; | |
1737 | ||
1738 | case LINE_OFFSET_NONE: | |
1739 | break; /* No need to adjust val.line. */ | |
1740 | } | |
1741 | ||
1742 | if (self->list_mode) | |
1743 | decode_digits_list_mode (self, ls, &values, val); | |
1744 | else | |
1745 | { | |
1746 | struct linetable_entry *best_entry = NULL; | |
1747 | int *filter; | |
1748 | struct block **blocks; | |
1749 | struct cleanup *cleanup; | |
1750 | struct symtabs_and_lines intermediate_results; | |
1751 | int i, j; | |
1752 | ||
1753 | intermediate_results.sals = NULL; | |
1754 | intermediate_results.nelts = 0; | |
1755 | ||
1756 | decode_digits_ordinary (self, ls, val.line, &intermediate_results, | |
1757 | &best_entry); | |
1758 | if (intermediate_results.nelts == 0 && best_entry != NULL) | |
1759 | decode_digits_ordinary (self, ls, best_entry->line, | |
1760 | &intermediate_results, &best_entry); | |
1761 | ||
1762 | cleanup = make_cleanup (xfree, intermediate_results.sals); | |
1763 | ||
1764 | /* For optimized code, the compiler can scatter one source line | |
1765 | across disjoint ranges of PC values, even when no duplicate | |
1766 | functions or inline functions are involved. For example, | |
1767 | 'for (;;)' inside a non-template, non-inline, and non-ctor-or-dtor | |
1768 | function can result in two PC ranges. In this case, we don't | |
1769 | want to set a breakpoint on the first PC of each range. To filter | |
1770 | such cases, we use containing blocks -- for each PC found | |
1771 | above, we see if there are other PCs that are in the same | |
1772 | block. If yes, the other PCs are filtered out. */ | |
1773 | ||
1774 | filter = XNEWVEC (int, intermediate_results.nelts); | |
1775 | make_cleanup (xfree, filter); | |
1776 | blocks = XNEWVEC (struct block *, intermediate_results.nelts); | |
1777 | make_cleanup (xfree, blocks); | |
1778 | ||
1779 | for (i = 0; i < intermediate_results.nelts; ++i) | |
3d50dd94 | 1780 | { |
40e084e1 | 1781 | set_current_program_space (intermediate_results.sals[i].pspace); |
c00f8484 | 1782 | |
40e084e1 KS |
1783 | filter[i] = 1; |
1784 | blocks[i] = block_for_pc_sect (intermediate_results.sals[i].pc, | |
1785 | intermediate_results.sals[i].section); | |
3d50dd94 | 1786 | } |
c00f8484 | 1787 | |
40e084e1 KS |
1788 | for (i = 0; i < intermediate_results.nelts; ++i) |
1789 | { | |
1790 | if (blocks[i] != NULL) | |
1791 | for (j = i + 1; j < intermediate_results.nelts; ++j) | |
1792 | { | |
1793 | if (blocks[j] == blocks[i]) | |
1794 | { | |
1795 | filter[j] = 0; | |
1796 | break; | |
1797 | } | |
1798 | } | |
1799 | } | |
c00f8484 | 1800 | |
40e084e1 KS |
1801 | for (i = 0; i < intermediate_results.nelts; ++i) |
1802 | if (filter[i]) | |
1803 | { | |
1804 | struct symbol *sym = (blocks[i] | |
1805 | ? block_containing_function (blocks[i]) | |
1806 | : NULL); | |
3d50dd94 | 1807 | |
40e084e1 KS |
1808 | if (self->funfirstline) |
1809 | skip_prologue_sal (&intermediate_results.sals[i]); | |
1810 | /* Make sure the line matches the request, not what was | |
1811 | found. */ | |
1812 | intermediate_results.sals[i].line = val.line; | |
1813 | add_sal_to_sals (self, &values, &intermediate_results.sals[i], | |
1814 | sym ? SYMBOL_NATURAL_NAME (sym) : NULL); | |
1815 | } | |
3d50dd94 | 1816 | |
40e084e1 | 1817 | do_cleanups (cleanup); |
f17170e5 | 1818 | } |
c00f8484 | 1819 | |
40e084e1 KS |
1820 | if (values.nelts == 0) |
1821 | { | |
1822 | if (ls->source_filename) | |
1823 | throw_error (NOT_FOUND_ERROR, _("No line %d in file \"%s\"."), | |
1824 | val.line, ls->source_filename); | |
1825 | else | |
1826 | throw_error (NOT_FOUND_ERROR, _("No line %d in the current file."), | |
1827 | val.line); | |
1828 | } | |
3d50dd94 | 1829 | |
40e084e1 | 1830 | return values; |
c00f8484 KS |
1831 | } |
1832 | ||
40e084e1 KS |
1833 | /* Create and return SALs from the linespec LS. */ |
1834 | ||
1835 | static struct symtabs_and_lines | |
1836 | convert_linespec_to_sals (struct linespec_state *state, linespec_p ls) | |
1837 | { | |
1838 | struct symtabs_and_lines sals = {NULL, 0}; | |
1839 | ||
1840 | if (ls->expression != NULL) | |
1841 | { | |
1842 | /* We have an expression. No other attribute is allowed. */ | |
1843 | sals.sals = XMALLOC (struct symtab_and_line); | |
1844 | sals.nelts = 1; | |
1845 | sals.sals[0] = find_pc_line (ls->expr_pc, 0); | |
1846 | sals.sals[0].pc = ls->expr_pc; | |
1847 | sals.sals[0].section = find_pc_overlay (ls->expr_pc); | |
1848 | sals.sals[0].explicit_pc = 1; | |
1849 | } | |
1850 | else if (ls->labels.label_symbols != NULL) | |
1851 | { | |
1852 | /* We have just a bunch of functions/methods or labels. */ | |
1853 | int i; | |
1854 | struct symtab_and_line sal; | |
1855 | struct symbol *sym; | |
1856 | ||
1857 | for (i = 0; VEC_iterate (symbolp, ls->labels.label_symbols, i, sym); ++i) | |
1858 | { | |
1859 | symbol_to_sal (&sal, state->funfirstline, sym); | |
1860 | add_sal_to_sals (state, &sals, &sal, | |
1861 | SYMBOL_NATURAL_NAME (sym)); | |
1862 | } | |
1863 | } | |
1864 | else if (ls->function_symbols != NULL || ls->minimal_symbols != NULL) | |
1865 | { | |
1866 | /* We have just a bunch of functions and/or methods. */ | |
1867 | int i; | |
1868 | struct symtab_and_line sal; | |
1869 | struct symbol *sym; | |
1870 | minsym_and_objfile_d *elem; | |
1871 | struct program_space *pspace; | |
1872 | ||
1873 | if (ls->function_symbols != NULL) | |
1874 | { | |
1875 | /* Sort symbols so that symbols with the same program space are next | |
1876 | to each other. */ | |
1877 | qsort (VEC_address (symbolp, ls->function_symbols), | |
1878 | VEC_length (symbolp, ls->function_symbols), | |
1879 | sizeof (symbolp), compare_symbols); | |
1880 | ||
1881 | for (i = 0; VEC_iterate (symbolp, ls->function_symbols, i, sym); ++i) | |
1882 | { | |
1883 | pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
1884 | set_current_program_space (pspace); | |
1885 | symbol_to_sal (&sal, state->funfirstline, sym); | |
1886 | if (maybe_add_address (state->addr_set, pspace, sal.pc)) | |
1887 | add_sal_to_sals (state, &sals, &sal, SYMBOL_NATURAL_NAME (sym)); | |
1888 | } | |
1889 | } | |
1890 | ||
1891 | if (ls->minimal_symbols != NULL) | |
1892 | { | |
1893 | /* Sort minimal symbols by program space, too. */ | |
1894 | qsort (VEC_address (minsym_and_objfile_d, ls->minimal_symbols), | |
1895 | VEC_length (minsym_and_objfile_d, ls->minimal_symbols), | |
1896 | sizeof (minsym_and_objfile_d), compare_msymbols); | |
1897 | ||
1898 | for (i = 0; | |
1899 | VEC_iterate (minsym_and_objfile_d, ls->minimal_symbols, i, elem); | |
1900 | ++i) | |
1901 | { | |
1902 | pspace = SYMBOL_OBJ_SECTION (elem->minsym)->objfile->pspace; | |
1903 | set_current_program_space (pspace); | |
1904 | minsym_found (state, elem->objfile, elem->minsym, &sals); | |
1905 | } | |
1906 | } | |
1907 | } | |
1908 | else if (ls->line_offset.sign != LINE_OFFSET_UNKNOWN) | |
1909 | { | |
1910 | /* Only an offset was specified. */ | |
1911 | sals = create_sals_line_offset (state, ls); | |
1912 | ||
1913 | /* Make sure we have a filename for canonicalization. */ | |
1914 | if (ls->source_filename == NULL) | |
1915 | ls->source_filename = xstrdup (state->default_symtab->filename); | |
1916 | } | |
1917 | else | |
1918 | { | |
1919 | /* We haven't found any results... */ | |
1920 | return sals; | |
1921 | } | |
1922 | ||
1923 | canonicalize_linespec (state, ls); | |
1924 | ||
1925 | if (sals.nelts > 0 && state->canonical != NULL) | |
1926 | state->canonical->pre_expanded = 1; | |
1927 | ||
1928 | return sals; | |
1929 | } | |
50641945 | 1930 | |
40e084e1 | 1931 | /* Parse a string that specifies a linespec. |
50641945 FN |
1932 | Pass the address of a char * variable; that variable will be |
1933 | advanced over the characters actually parsed. | |
1934 | ||
40e084e1 | 1935 | The basic grammar of linespecs: |
50641945 | 1936 | |
40e084e1 KS |
1937 | linespec -> expr_spec | var_spec | basic_spec |
1938 | expr_spec -> '*' STRING | |
1939 | var_spec -> '$' (STRING | NUMBER) | |
50641945 | 1940 | |
40e084e1 KS |
1941 | basic_spec -> file_offset_spec | function_spec | label_spec |
1942 | file_offset_spec -> opt_file_spec offset_spec | |
1943 | function_spec -> opt_file_spec function_name_spec opt_label_spec | |
1944 | label_spec -> label_name_spec | |
50641945 | 1945 | |
40e084e1 KS |
1946 | opt_file_spec -> "" | file_name_spec ':' |
1947 | opt_label_spec -> "" | ':' label_name_spec | |
1948 | ||
1949 | file_name_spec -> STRING | |
1950 | function_name_spec -> STRING | |
1951 | label_name_spec -> STRING | |
1952 | function_name_spec -> STRING | |
1953 | offset_spec -> NUMBER | |
1954 | -> '+' NUMBER | |
1955 | -> '-' NUMBER | |
1956 | ||
1957 | This may all be followed by several keywords such as "if EXPR", | |
1958 | which we ignore. | |
1959 | ||
1960 | A comma will terminate parsing. | |
1961 | ||
1962 | The function may be an undebuggable function found in minimal symbol table. | |
50641945 FN |
1963 | |
1964 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
1965 | of real code inside a function when a function is specified, and it is | |
1966 | not OK to specify a variable or type to get its line number. | |
1967 | ||
1968 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
1969 | It defaults to current_source_symtab. | |
1970 | DEFAULT_LINE specifies the line number to use for relative | |
1971 | line numbers (that start with signs). Defaults to current_source_line. | |
1972 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
1777feb0 | 1973 | line specs there if necessary. Currently overloaded member functions and |
50641945 | 1974 | line numbers or static functions without a filename yield a canonical |
1777feb0 | 1975 | line spec. The array and the line spec strings are allocated on the heap, |
50641945 FN |
1976 | it is the callers responsibility to free them. |
1977 | ||
1978 | Note that it is possible to return zero for the symtab | |
1979 | if no file is validly specified. Callers must check that. | |
58438ac1 | 1980 | Also, the line number returned may be invalid. */ |
50641945 | 1981 | |
40e084e1 | 1982 | /* Parse the linespec in ARGPTR. */ |
50641945 | 1983 | |
ad32032e | 1984 | static struct symtabs_and_lines |
40e084e1 | 1985 | parse_linespec (linespec_parser *parser, char **argptr) |
50641945 | 1986 | { |
40e084e1 KS |
1987 | linespec_token token; |
1988 | struct symtabs_and_lines values; | |
9ef07c8c | 1989 | volatile struct gdb_exception file_exception; |
40e084e1 KS |
1990 | struct cleanup *cleanup; |
1991 | ||
1992 | /* A special case to start. It has become quite popular for | |
1993 | IDEs to work around bugs in the previous parser by quoting | |
1994 | the entire linespec, so we attempt to deal with this nicely. */ | |
1995 | parser->is_quote_enclosed = 0; | |
1996 | if (!is_ada_operator (*argptr) | |
1997 | && strchr (linespec_quote_characters, **argptr) != NULL) | |
1998 | { | |
1999 | const char *end; | |
9ef07c8c | 2000 | |
40e084e1 KS |
2001 | end = skip_quote_char (*argptr + 1, **argptr); |
2002 | if (end != NULL && is_closing_quote_enclosed (end)) | |
136e1c30 | 2003 | { |
40e084e1 KS |
2004 | /* Here's the special case. Skip ARGPTR past the initial |
2005 | quote. */ | |
2006 | ++(*argptr); | |
2007 | parser->is_quote_enclosed = 1; | |
136e1c30 DE |
2008 | } |
2009 | } | |
e8eb7bc5 | 2010 | |
40e084e1 KS |
2011 | parser->lexer.saved_arg = *argptr; |
2012 | parser->lexer.stream = argptr; | |
2013 | file_exception.reason = 0; | |
d2630e69 | 2014 | |
40e084e1 KS |
2015 | /* Initialize the default symtab and line offset. */ |
2016 | initialize_defaults (&PARSER_STATE (parser)->default_symtab, | |
2017 | &PARSER_STATE (parser)->default_line); | |
d2630e69 | 2018 | |
40e084e1 KS |
2019 | /* Objective-C shortcut. */ |
2020 | values = decode_objc (PARSER_STATE (parser), PARSER_RESULT (parser), argptr); | |
2021 | if (values.sals != NULL) | |
2022 | return values; | |
e0881a8e | 2023 | |
40e084e1 | 2024 | /* Start parsing. */ |
d2630e69 | 2025 | |
40e084e1 KS |
2026 | /* Get the first token. */ |
2027 | token = linespec_lexer_lex_one (parser); | |
50641945 | 2028 | |
40e084e1 KS |
2029 | /* It must be either LSTOKEN_STRING or LSTOKEN_NUMBER. */ |
2030 | if (token.type == LSTOKEN_STRING && *LS_TOKEN_STOKEN (token).ptr == '*') | |
50641945 | 2031 | { |
40e084e1 | 2032 | char *expr, *copy; |
94af9270 | 2033 | |
40e084e1 KS |
2034 | /* User specified an expression, *EXPR. */ |
2035 | copy = expr = copy_token_string (token); | |
2036 | cleanup = make_cleanup (xfree, expr); | |
2037 | PARSER_RESULT (parser)->expr_pc = linespec_expression_to_pc (©); | |
2038 | discard_cleanups (cleanup); | |
2039 | PARSER_RESULT (parser)->expression = expr; | |
dcf9f4ab | 2040 | |
40e084e1 KS |
2041 | /* This is a little hacky/tricky. If linespec_expression_to_pc |
2042 | did not evaluate the entire token, then we must find the | |
2043 | string COPY inside the original token buffer. */ | |
2044 | if (*copy != '\0') | |
2045 | { | |
2046 | PARSER_STREAM (parser) = strstr (parser->lexer.saved_arg, copy); | |
2047 | gdb_assert (PARSER_STREAM (parser) != NULL); | |
2048 | } | |
2f741504 | 2049 | |
40e084e1 KS |
2050 | /* Consume the token. */ |
2051 | linespec_lexer_consume_token (parser); | |
50641945 | 2052 | |
40e084e1 KS |
2053 | goto convert_to_sals; |
2054 | } | |
2055 | else if (token.type == LSTOKEN_STRING && *LS_TOKEN_STOKEN (token).ptr == '$') | |
2056 | { | |
2057 | char *var; | |
50641945 | 2058 | |
40e084e1 KS |
2059 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
2060 | VEC_safe_push (symtab_p, PARSER_RESULT (parser)->file_symtabs, NULL); | |
dcf9f4ab | 2061 | |
40e084e1 KS |
2062 | /* User specified a convenience variable or history value. */ |
2063 | var = copy_token_string (token); | |
2064 | cleanup = make_cleanup (xfree, var); | |
2065 | PARSER_RESULT (parser)->line_offset | |
2066 | = linespec_parse_variable (PARSER_STATE (parser), var); | |
f8eba3c6 | 2067 | |
40e084e1 KS |
2068 | /* If a line_offset wasn't found (VAR is the name of a user |
2069 | variable/function), then skip to normal symbol processing. */ | |
2070 | if (PARSER_RESULT (parser)->line_offset.sign != LINE_OFFSET_UNKNOWN) | |
2071 | { | |
2072 | discard_cleanups (cleanup); | |
f8eba3c6 | 2073 | |
40e084e1 KS |
2074 | /* Consume this token. */ |
2075 | linespec_lexer_consume_token (parser); | |
dcf9f4ab | 2076 | |
40e084e1 | 2077 | goto convert_to_sals; |
50641945 | 2078 | } |
50641945 | 2079 | |
40e084e1 KS |
2080 | do_cleanups (cleanup); |
2081 | } | |
2082 | else if (token.type != LSTOKEN_STRING && token.type != LSTOKEN_NUMBER) | |
2083 | unexpected_linespec_error (parser); | |
50641945 | 2084 | |
40e084e1 KS |
2085 | /* Shortcut: If the next token is not LSTOKEN_COLON, we know that |
2086 | this token cannot represent a filename. */ | |
2087 | token = linespec_lexer_peek_token (parser); | |
0e0b460e | 2088 | |
40e084e1 | 2089 | if (token.type == LSTOKEN_COLON) |
0e0b460e | 2090 | { |
40e084e1 | 2091 | char *user_filename; |
0e0b460e | 2092 | |
40e084e1 KS |
2093 | /* Get the current token again and extract the filename. */ |
2094 | token = linespec_lexer_lex_one (parser); | |
2095 | user_filename = copy_token_string (token); | |
50641945 | 2096 | |
40e084e1 KS |
2097 | /* Check if the input is a filename. */ |
2098 | TRY_CATCH (file_exception, RETURN_MASK_ERROR) | |
2099 | { | |
2100 | PARSER_RESULT (parser)->file_symtabs | |
2101 | = symtabs_from_filename (user_filename); | |
2102 | } | |
50641945 | 2103 | |
40e084e1 KS |
2104 | if (file_exception.reason >= 0) |
2105 | { | |
2106 | /* Symtabs were found for the file. Record the filename. */ | |
2107 | PARSER_RESULT (parser)->source_filename = user_filename; | |
f8eba3c6 | 2108 | |
40e084e1 KS |
2109 | /* Get the next token. */ |
2110 | token = linespec_lexer_consume_token (parser); | |
50641945 | 2111 | |
40e084e1 KS |
2112 | /* This is LSTOKEN_COLON; consume it. */ |
2113 | linespec_lexer_consume_token (parser); | |
2114 | } | |
2115 | else | |
2116 | { | |
2117 | /* No symtabs found -- discard user_filename. */ | |
2118 | xfree (user_filename); | |
50641945 | 2119 | |
40e084e1 KS |
2120 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
2121 | VEC_safe_push (symtab_p, PARSER_RESULT (parser)->file_symtabs, NULL); | |
2122 | } | |
50641945 | 2123 | } |
40e084e1 KS |
2124 | /* If the next token is not EOI, KEYWORD, or COMMA, issue an error. */ |
2125 | else if (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD | |
2126 | && token.type != LSTOKEN_COMMA) | |
d2630e69 | 2127 | { |
40e084e1 KS |
2128 | /* TOKEN is the _next_ token, not the one currently in the parser. |
2129 | Consuming the token will give the correct error message. */ | |
2130 | linespec_lexer_consume_token (parser); | |
2131 | unexpected_linespec_error (parser); | |
d2630e69 | 2132 | } |
50641945 FN |
2133 | else |
2134 | { | |
40e084e1 KS |
2135 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
2136 | VEC_safe_push (symtab_p, PARSER_RESULT (parser)->file_symtabs, NULL); | |
50641945 | 2137 | } |
50641945 | 2138 | |
40e084e1 KS |
2139 | /* Parse the rest of the linespec. */ |
2140 | linespec_parse_basic (parser); | |
50641945 | 2141 | |
40e084e1 KS |
2142 | if (PARSER_RESULT (parser)->function_symbols == NULL |
2143 | && PARSER_RESULT (parser)->labels.label_symbols == NULL | |
2144 | && PARSER_RESULT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN | |
2145 | && PARSER_RESULT (parser)->minimal_symbols == NULL) | |
f8eba3c6 | 2146 | { |
40e084e1 KS |
2147 | /* The linespec didn't parse. Re-throw the file exception if |
2148 | there was one. */ | |
2149 | if (file_exception.reason < 0) | |
2150 | throw_exception (file_exception); | |
0f5238ed | 2151 | |
40e084e1 KS |
2152 | /* Otherwise, the symbol is not found. */ |
2153 | symbol_not_found_error (PARSER_RESULT (parser)->function_name, | |
2154 | PARSER_RESULT (parser)->source_filename); | |
0f5238ed TT |
2155 | } |
2156 | ||
40e084e1 | 2157 | convert_to_sals: |
9ef07c8c | 2158 | |
40e084e1 KS |
2159 | /* Get the last token and record how much of the input was parsed, |
2160 | if necessary. */ | |
2161 | token = linespec_lexer_lex_one (parser); | |
2162 | if (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD) | |
2163 | PARSER_STREAM (parser) = LS_TOKEN_STOKEN (token).ptr; | |
50641945 | 2164 | |
40e084e1 KS |
2165 | /* Convert the data in PARSER_RESULT to SALs. */ |
2166 | values = convert_linespec_to_sals (PARSER_STATE (parser), | |
2167 | PARSER_RESULT (parser)); | |
f8eba3c6 | 2168 | |
40e084e1 | 2169 | return values; |
413dad4d | 2170 | } |
50641945 | 2171 | |
40e084e1 | 2172 | |
f8eba3c6 | 2173 | /* A constructor for linespec_state. */ |
44fe14ab | 2174 | |
f8eba3c6 TT |
2175 | static void |
2176 | linespec_state_constructor (struct linespec_state *self, | |
40e084e1 | 2177 | int flags, const struct language_defn *language, |
f8eba3c6 TT |
2178 | struct symtab *default_symtab, |
2179 | int default_line, | |
2180 | struct linespec_result *canonical) | |
2181 | { | |
2182 | memset (self, 0, sizeof (*self)); | |
40e084e1 | 2183 | self->language = language; |
f8eba3c6 TT |
2184 | self->funfirstline = (flags & DECODE_LINE_FUNFIRSTLINE) ? 1 : 0; |
2185 | self->list_mode = (flags & DECODE_LINE_LIST_MODE) ? 1 : 0; | |
2186 | self->default_symtab = default_symtab; | |
2187 | self->default_line = default_line; | |
2188 | self->canonical = canonical; | |
2189 | self->program_space = current_program_space; | |
2190 | self->addr_set = htab_create_alloc (10, hash_address_entry, eq_address_entry, | |
2191 | xfree, xcalloc, xfree); | |
2192 | } | |
44fe14ab | 2193 | |
40e084e1 | 2194 | /* Initialize a new linespec parser. */ |
44fe14ab DC |
2195 | |
2196 | static void | |
40e084e1 KS |
2197 | linespec_parser_new (linespec_parser *parser, |
2198 | int flags, const struct language_defn *language, | |
2199 | struct symtab *default_symtab, | |
2200 | int default_line, | |
2201 | struct linespec_result *canonical) | |
44fe14ab | 2202 | { |
40e084e1 KS |
2203 | parser->lexer.current.type = LSTOKEN_CONSUMED; |
2204 | memset (PARSER_RESULT (parser), 0, sizeof (struct linespec)); | |
2205 | PARSER_RESULT (parser)->line_offset.sign = LINE_OFFSET_UNKNOWN; | |
2206 | linespec_state_constructor (PARSER_STATE (parser), flags, language, | |
2207 | default_symtab, default_line, canonical); | |
2208 | } | |
2209 | ||
2210 | /* A destructor for linespec_state. */ | |
44fe14ab | 2211 | |
40e084e1 KS |
2212 | static void |
2213 | linespec_state_destructor (struct linespec_state *self) | |
2214 | { | |
f8eba3c6 TT |
2215 | htab_delete (self->addr_set); |
2216 | } | |
44fe14ab | 2217 | |
40e084e1 KS |
2218 | /* Delete a linespec parser. */ |
2219 | ||
2220 | static void | |
2221 | linespec_parser_delete (void *arg) | |
2222 | { | |
2223 | linespec_parser *parser = (linespec_parser *) arg; | |
2224 | ||
2225 | if (PARSER_RESULT (parser)->expression) | |
2226 | xfree (PARSER_RESULT (parser)->expression); | |
2227 | if (PARSER_RESULT (parser)->source_filename) | |
2228 | xfree (PARSER_RESULT (parser)->source_filename); | |
2229 | if (PARSER_RESULT (parser)->label_name) | |
2230 | xfree (PARSER_RESULT (parser)->label_name); | |
2231 | if (PARSER_RESULT (parser)->function_name) | |
2232 | xfree (PARSER_RESULT (parser)->function_name); | |
2233 | ||
2234 | if (PARSER_RESULT (parser)->file_symtabs != NULL) | |
2235 | VEC_free (symtab_p, PARSER_RESULT (parser)->file_symtabs); | |
2236 | ||
2237 | if (PARSER_RESULT (parser)->function_symbols != NULL) | |
2238 | VEC_free (symbolp, PARSER_RESULT (parser)->function_symbols); | |
2239 | ||
2240 | if (PARSER_RESULT (parser)->minimal_symbols != NULL) | |
2241 | VEC_free (minsym_and_objfile_d, PARSER_RESULT (parser)->minimal_symbols); | |
2242 | ||
2243 | if (PARSER_RESULT (parser)->labels.label_symbols != NULL) | |
2244 | VEC_free (symbolp, PARSER_RESULT (parser)->labels.label_symbols); | |
2245 | ||
2246 | if (PARSER_RESULT (parser)->labels.function_symbols != NULL) | |
2247 | VEC_free (symbolp, PARSER_RESULT (parser)->labels.function_symbols); | |
2248 | ||
2249 | linespec_state_destructor (PARSER_STATE (parser)); | |
2250 | } | |
2251 | ||
f8eba3c6 | 2252 | /* See linespec.h. */ |
44fe14ab | 2253 | |
f8eba3c6 TT |
2254 | void |
2255 | decode_line_full (char **argptr, int flags, | |
2256 | struct symtab *default_symtab, | |
2257 | int default_line, struct linespec_result *canonical, | |
2258 | const char *select_mode, | |
2259 | const char *filter) | |
44fe14ab | 2260 | { |
f8eba3c6 | 2261 | struct symtabs_and_lines result; |
f8eba3c6 TT |
2262 | struct cleanup *cleanups; |
2263 | char *arg_start = *argptr; | |
2264 | VEC (const_char_ptr) *filters = NULL; | |
40e084e1 KS |
2265 | linespec_parser parser; |
2266 | struct linespec_state *state; | |
f8eba3c6 TT |
2267 | |
2268 | gdb_assert (canonical != NULL); | |
2269 | /* The filter only makes sense for 'all'. */ | |
2270 | gdb_assert (filter == NULL || select_mode == multiple_symbols_all); | |
2271 | gdb_assert (select_mode == NULL | |
2272 | || select_mode == multiple_symbols_all | |
2273 | || select_mode == multiple_symbols_ask | |
2274 | || select_mode == multiple_symbols_cancel); | |
2275 | gdb_assert ((flags & DECODE_LINE_LIST_MODE) == 0); | |
2276 | ||
40e084e1 KS |
2277 | linespec_parser_new (&parser, flags, current_language, default_symtab, |
2278 | default_line, canonical); | |
2279 | cleanups = make_cleanup (linespec_parser_delete, &parser); | |
f8eba3c6 TT |
2280 | save_current_program_space (); |
2281 | ||
40e084e1 KS |
2282 | result = parse_linespec (&parser, argptr); |
2283 | state = PARSER_STATE (&parser); | |
f8eba3c6 TT |
2284 | |
2285 | gdb_assert (result.nelts == 1 || canonical->pre_expanded); | |
2286 | gdb_assert (canonical->addr_string != NULL); | |
2287 | canonical->pre_expanded = 1; | |
2288 | ||
2289 | /* Fill in the missing canonical names. */ | |
2290 | if (result.nelts > 0) | |
2291 | { | |
2292 | int i; | |
2293 | ||
40e084e1 KS |
2294 | if (state->canonical_names == NULL) |
2295 | state->canonical_names = xcalloc (result.nelts, sizeof (char *)); | |
2296 | make_cleanup (xfree, state->canonical_names); | |
f8eba3c6 TT |
2297 | for (i = 0; i < result.nelts; ++i) |
2298 | { | |
40e084e1 KS |
2299 | if (state->canonical_names[i] == NULL) |
2300 | state->canonical_names[i] = savestring (arg_start, | |
2301 | *argptr - arg_start); | |
2302 | make_cleanup (xfree, state->canonical_names[i]); | |
f8eba3c6 TT |
2303 | } |
2304 | } | |
2305 | ||
2306 | if (select_mode == NULL) | |
2307 | { | |
2308 | if (ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
2309 | select_mode = multiple_symbols_all; | |
2310 | else | |
2311 | select_mode = multiple_symbols_select_mode (); | |
2312 | } | |
2313 | ||
2314 | if (select_mode == multiple_symbols_all) | |
2315 | { | |
2316 | if (filter != NULL) | |
2317 | { | |
2318 | make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
2319 | VEC_safe_push (const_char_ptr, filters, filter); | |
40e084e1 | 2320 | filter_results (state, &result, filters); |
f8eba3c6 TT |
2321 | } |
2322 | else | |
40e084e1 | 2323 | convert_results_to_lsals (state, &result); |
f8eba3c6 TT |
2324 | } |
2325 | else | |
40e084e1 | 2326 | decode_line_2 (state, &result, select_mode); |
f8eba3c6 TT |
2327 | |
2328 | do_cleanups (cleanups); | |
2329 | } | |
2330 | ||
2331 | struct symtabs_and_lines | |
2332 | decode_line_1 (char **argptr, int flags, | |
2333 | struct symtab *default_symtab, | |
2334 | int default_line) | |
2335 | { | |
2336 | struct symtabs_and_lines result; | |
40e084e1 | 2337 | linespec_parser parser; |
f8eba3c6 TT |
2338 | struct cleanup *cleanups; |
2339 | ||
40e084e1 KS |
2340 | linespec_parser_new (&parser, flags, current_language, default_symtab, |
2341 | default_line, NULL); | |
2342 | cleanups = make_cleanup (linespec_parser_delete, &parser); | |
f8eba3c6 TT |
2343 | save_current_program_space (); |
2344 | ||
40e084e1 KS |
2345 | result = parse_linespec (&parser, argptr); |
2346 | ||
f8eba3c6 TT |
2347 | do_cleanups (cleanups); |
2348 | return result; | |
2349 | } | |
2350 | ||
2351 | \f | |
2352 | ||
2353 | /* First, some functions to initialize stuff at the beggining of the | |
2354 | function. */ | |
2355 | ||
2356 | static void | |
2357 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
2358 | { | |
2359 | if (*default_symtab == 0) | |
2360 | { | |
2361 | /* Use whatever we have for the default source line. We don't use | |
2362 | get_current_or_default_symtab_and_line as it can recurse and call | |
2363 | us back! */ | |
2364 | struct symtab_and_line cursal = | |
2365 | get_current_source_symtab_and_line (); | |
2366 | ||
2367 | *default_symtab = cursal.symtab; | |
2368 | *default_line = cursal.line; | |
2369 | } | |
2370 | } | |
2371 | ||
2372 | \f | |
2373 | ||
40e084e1 KS |
2374 | /* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR, |
2375 | advancing EXP_PTR past any parsed text. */ | |
f8eba3c6 | 2376 | |
40e084e1 KS |
2377 | static CORE_ADDR |
2378 | linespec_expression_to_pc (char **exp_ptr) | |
f8eba3c6 | 2379 | { |
f8eba3c6 TT |
2380 | if (current_program_space->executing_startup) |
2381 | /* The error message doesn't really matter, because this case | |
2382 | should only hit during breakpoint reset. */ | |
2383 | throw_error (NOT_FOUND_ERROR, _("cannot evaluate expressions while " | |
2384 | "program space is in startup")); | |
2385 | ||
40e084e1 KS |
2386 | (*exp_ptr)++; |
2387 | return value_as_address (parse_to_comma_and_eval (exp_ptr)); | |
0960f083 DC |
2388 | } |
2389 | ||
2390 | \f | |
2391 | ||
d2630e69 AF |
2392 | /* Here's where we recognise an Objective-C Selector. An Objective C |
2393 | selector may be implemented by more than one class, therefore it | |
2394 | may represent more than one method/function. This gives us a | |
2395 | situation somewhat analogous to C++ overloading. If there's more | |
2396 | than one method that could represent the selector, then use some of | |
2397 | the existing C++ code to let the user choose one. */ | |
2398 | ||
f8eba3c6 | 2399 | static struct symtabs_and_lines |
40e084e1 | 2400 | decode_objc (struct linespec_state *self, linespec_p ls, char **argptr) |
d2630e69 | 2401 | { |
f8eba3c6 TT |
2402 | struct collect_info info; |
2403 | VEC (const_char_ptr) *symbol_names = NULL; | |
40e084e1 | 2404 | struct symtabs_and_lines values; |
f8eba3c6 TT |
2405 | char *new_argptr; |
2406 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr), | |
2407 | &symbol_names); | |
2408 | ||
2409 | info.state = self; | |
40e084e1 KS |
2410 | info.file_symtabs = NULL; |
2411 | VEC_safe_push (symtab_p, info.file_symtabs, NULL); | |
2412 | info.result.symbols = NULL; | |
2413 | info.result.minimal_symbols = NULL; | |
2414 | values.nelts = 0; | |
2415 | values.sals = NULL; | |
f8eba3c6 TT |
2416 | |
2417 | new_argptr = find_imps (*argptr, &symbol_names); | |
2418 | if (VEC_empty (const_char_ptr, symbol_names)) | |
2419 | { | |
2420 | do_cleanups (cleanup); | |
40e084e1 | 2421 | return values; |
f8eba3c6 | 2422 | } |
d2630e69 | 2423 | |
f8eba3c6 | 2424 | add_all_symbol_names_from_pspace (&info, NULL, symbol_names); |
d2630e69 | 2425 | |
40e084e1 KS |
2426 | if (!VEC_empty (symbolp, info.result.symbols) |
2427 | || !VEC_empty (minsym_and_objfile_d, info.result.minimal_symbols)) | |
d2630e69 | 2428 | { |
f8eba3c6 | 2429 | char *saved_arg; |
d2630e69 | 2430 | |
f8eba3c6 TT |
2431 | saved_arg = alloca (new_argptr - *argptr + 1); |
2432 | memcpy (saved_arg, *argptr, new_argptr - *argptr); | |
2433 | saved_arg[new_argptr - *argptr] = '\0'; | |
d2630e69 | 2434 | |
40e084e1 KS |
2435 | ls->function_symbols = info.result.symbols; |
2436 | ls->minimal_symbols = info.result.minimal_symbols; | |
2437 | values = convert_linespec_to_sals (self, ls); | |
2438 | ||
f8eba3c6 | 2439 | if (self->canonical) |
d2630e69 | 2440 | { |
f8eba3c6 | 2441 | self->canonical->pre_expanded = 1; |
40e084e1 | 2442 | if (ls->source_filename) |
f8eba3c6 | 2443 | self->canonical->addr_string |
40e084e1 | 2444 | = xstrprintf ("%s:%s", ls->source_filename, saved_arg); |
f8eba3c6 TT |
2445 | else |
2446 | self->canonical->addr_string = xstrdup (saved_arg); | |
d2630e69 | 2447 | } |
d2630e69 AF |
2448 | } |
2449 | ||
f8eba3c6 | 2450 | *argptr = new_argptr; |
d2630e69 | 2451 | |
f8eba3c6 | 2452 | do_cleanups (cleanup); |
c00f8484 | 2453 | |
40e084e1 | 2454 | return values; |
f8eba3c6 | 2455 | } |
c00f8484 | 2456 | |
f8eba3c6 TT |
2457 | /* An instance of this type is used when collecting prefix symbols for |
2458 | decode_compound. */ | |
17763fd9 | 2459 | |
f8eba3c6 TT |
2460 | struct decode_compound_collector |
2461 | { | |
2462 | /* The result vector. */ | |
2463 | VEC (symbolp) *symbols; | |
3a93a0c2 | 2464 | |
f8eba3c6 TT |
2465 | /* A hash table of all symbols we found. We use this to avoid |
2466 | adding any symbol more than once. */ | |
2467 | htab_t unique_syms; | |
2468 | }; | |
3a93a0c2 | 2469 | |
f8eba3c6 TT |
2470 | /* A callback for iterate_over_symbols that is used by |
2471 | lookup_prefix_sym to collect type symbols. */ | |
c00f8484 | 2472 | |
f8eba3c6 TT |
2473 | static int |
2474 | collect_one_symbol (struct symbol *sym, void *d) | |
2475 | { | |
2476 | struct decode_compound_collector *collector = d; | |
2477 | void **slot; | |
2478 | struct type *t; | |
614b3b14 | 2479 | |
f8eba3c6 | 2480 | if (SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
8e704927 | 2481 | return 1; /* Continue iterating. */ |
f8eba3c6 TT |
2482 | |
2483 | t = SYMBOL_TYPE (sym); | |
2484 | CHECK_TYPEDEF (t); | |
2485 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT | |
2486 | && TYPE_CODE (t) != TYPE_CODE_UNION | |
2487 | && TYPE_CODE (t) != TYPE_CODE_NAMESPACE) | |
8e704927 | 2488 | return 1; /* Continue iterating. */ |
614b3b14 | 2489 | |
f8eba3c6 TT |
2490 | slot = htab_find_slot (collector->unique_syms, sym, INSERT); |
2491 | if (!*slot) | |
2492 | { | |
2493 | *slot = sym; | |
2494 | VEC_safe_push (symbolp, collector->symbols, sym); | |
2495 | } | |
2496 | ||
8e704927 | 2497 | return 1; /* Continue iterating. */ |
f8eba3c6 | 2498 | } |
93d91629 | 2499 | |
40e084e1 | 2500 | /* Return any symbols corresponding to CLASS_NAME in FILE_SYMTABS. */ |
93d91629 | 2501 | |
f8eba3c6 | 2502 | static VEC (symbolp) * |
40e084e1 KS |
2503 | lookup_prefix_sym (struct linespec_state *state, VEC (symtab_p) *file_symtabs, |
2504 | const char *class_name) | |
93d91629 | 2505 | { |
f8eba3c6 TT |
2506 | int ix; |
2507 | struct symtab *elt; | |
2508 | struct decode_compound_collector collector; | |
2509 | struct cleanup *outer; | |
2510 | struct cleanup *cleanup; | |
17763fd9 | 2511 | |
f8eba3c6 | 2512 | collector.symbols = NULL; |
40e084e1 | 2513 | outer = make_cleanup (VEC_cleanup (symbolp), &collector.symbols); |
e0881a8e | 2514 | |
f8eba3c6 TT |
2515 | collector.unique_syms = htab_create_alloc (1, htab_hash_pointer, |
2516 | htab_eq_pointer, NULL, | |
2517 | xcalloc, xfree); | |
2518 | cleanup = make_cleanup_htab_delete (collector.unique_syms); | |
e0881a8e | 2519 | |
f8eba3c6 TT |
2520 | for (ix = 0; VEC_iterate (symtab_p, file_symtabs, ix, elt); ++ix) |
2521 | { | |
2522 | if (elt == NULL) | |
2523 | { | |
40e084e1 | 2524 | iterate_over_all_matching_symtabs (state, class_name, STRUCT_DOMAIN, |
f8eba3c6 | 2525 | collect_one_symbol, &collector, |
481860b3 | 2526 | NULL, 0); |
40e084e1 | 2527 | iterate_over_all_matching_symtabs (state, class_name, VAR_DOMAIN, |
f8eba3c6 | 2528 | collect_one_symbol, &collector, |
481860b3 | 2529 | NULL, 0); |
f8eba3c6 TT |
2530 | } |
2531 | else | |
2532 | { | |
2533 | struct block *search_block; | |
2534 | ||
2535 | /* Program spaces that are executing startup should have | |
2536 | been filtered out earlier. */ | |
2537 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
2538 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
2539 | search_block = get_search_block (elt); | |
40e084e1 | 2540 | LA_ITERATE_OVER_SYMBOLS (search_block, class_name, STRUCT_DOMAIN, |
f8eba3c6 | 2541 | collect_one_symbol, &collector); |
40e084e1 | 2542 | LA_ITERATE_OVER_SYMBOLS (search_block, class_name, VAR_DOMAIN, |
f8eba3c6 | 2543 | collect_one_symbol, &collector); |
1e5a1abc KS |
2544 | } |
2545 | } | |
2546 | ||
f8eba3c6 TT |
2547 | do_cleanups (cleanup); |
2548 | discard_cleanups (outer); | |
2549 | return collector.symbols; | |
93d91629 DC |
2550 | } |
2551 | ||
40e084e1 KS |
2552 | /* A qsort comparison function for symbols. The resulting order does |
2553 | not actually matter; we just need to be able to sort them so that | |
2554 | symbols with the same program space end up next to each other. */ | |
2555 | ||
2556 | static int | |
2557 | compare_symbols (const void *a, const void *b) | |
2558 | { | |
2559 | struct symbol * const *sa = a; | |
2560 | struct symbol * const *sb = b; | |
2561 | uintptr_t uia, uib; | |
2562 | ||
2563 | uia = (uintptr_t) SYMTAB_PSPACE (SYMBOL_SYMTAB (*sa)); | |
2564 | uib = (uintptr_t) SYMTAB_PSPACE (SYMBOL_SYMTAB (*sb)); | |
2565 | ||
2566 | if (uia < uib) | |
2567 | return -1; | |
2568 | if (uia > uib) | |
2569 | return 1; | |
2570 | ||
2571 | uia = (uintptr_t) *sa; | |
2572 | uib = (uintptr_t) *sb; | |
2573 | ||
2574 | if (uia < uib) | |
2575 | return -1; | |
2576 | if (uia > uib) | |
2577 | return 1; | |
2578 | ||
2579 | return 0; | |
2580 | } | |
2581 | ||
2582 | /* Like compare_symbols but for minimal symbols. */ | |
4224873a | 2583 | |
f8eba3c6 | 2584 | static int |
40e084e1 | 2585 | compare_msymbols (const void *a, const void *b) |
4224873a | 2586 | { |
40e084e1 KS |
2587 | struct minimal_symbol * const *sa = a; |
2588 | struct minimal_symbol * const *sb = b; | |
f8eba3c6 TT |
2589 | uintptr_t uia, uib; |
2590 | ||
40e084e1 KS |
2591 | uia = (uintptr_t) SYMBOL_OBJ_SECTION (*sa)->objfile->pspace; |
2592 | uib = (uintptr_t) SYMBOL_OBJ_SECTION (*sb)->objfile->pspace; | |
f8eba3c6 TT |
2593 | |
2594 | if (uia < uib) | |
2595 | return -1; | |
2596 | if (uia > uib) | |
2597 | return 1; | |
2598 | ||
2599 | uia = (uintptr_t) *sa; | |
2600 | uib = (uintptr_t) *sb; | |
2601 | ||
2602 | if (uia < uib) | |
2603 | return -1; | |
2604 | if (uia > uib) | |
2605 | return 1; | |
2606 | ||
2607 | return 0; | |
2608 | } | |
2609 | ||
2610 | /* Look for all the matching instances of each symbol in NAMES. Only | |
2611 | instances from PSPACE are considered; other program spaces are | |
2612 | handled by our caller. If PSPACE is NULL, then all program spaces | |
2613 | are considered. Results are stored into INFO. */ | |
2614 | ||
2615 | static void | |
2616 | add_all_symbol_names_from_pspace (struct collect_info *info, | |
2617 | struct program_space *pspace, | |
2618 | VEC (const_char_ptr) *names) | |
2619 | { | |
2620 | int ix; | |
2621 | const char *iter; | |
2622 | ||
2623 | for (ix = 0; VEC_iterate (const_char_ptr, names, ix, iter); ++ix) | |
2624 | add_matching_symbols_to_info (iter, info, pspace); | |
2625 | } | |
2626 | ||
2627 | static void | |
2628 | find_superclass_methods (VEC (typep) *superclasses, | |
2629 | const char *name, | |
2630 | VEC (const_char_ptr) **result_names) | |
2631 | { | |
2632 | int old_len = VEC_length (const_char_ptr, *result_names); | |
2633 | VEC (typep) *iter_classes; | |
2634 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
2635 | ||
2636 | iter_classes = superclasses; | |
2637 | while (1) | |
2638 | { | |
2639 | VEC (typep) *new_supers = NULL; | |
2640 | int ix; | |
2641 | struct type *t; | |
2642 | ||
2643 | make_cleanup (VEC_cleanup (typep), &new_supers); | |
2644 | for (ix = 0; VEC_iterate (typep, iter_classes, ix, t); ++ix) | |
2645 | find_methods (t, name, result_names, &new_supers); | |
2646 | ||
2647 | if (VEC_length (const_char_ptr, *result_names) != old_len | |
2648 | || VEC_empty (typep, new_supers)) | |
2649 | break; | |
4224873a | 2650 | |
f8eba3c6 TT |
2651 | iter_classes = new_supers; |
2652 | } | |
4224873a | 2653 | |
f8eba3c6 TT |
2654 | do_cleanups (cleanup); |
2655 | } | |
2656 | ||
40e084e1 KS |
2657 | /* This finds the method METHOD_NAME in the class CLASS_NAME whose type is |
2658 | given by one of the symbols in SYM_CLASSES. Matches are returned | |
2659 | in SYMBOLS (for debug symbols) and MINSYMS (for minimal symbols). */ | |
f8eba3c6 | 2660 | |
40e084e1 KS |
2661 | static void |
2662 | find_method (struct linespec_state *self, VEC (symtab_p) *file_symtabs, | |
2663 | const char *class_name, const char *method_name, | |
2664 | VEC (symbolp) *sym_classes, VEC (symbolp) **symbols, | |
2665 | VEC (minsym_and_objfile_d) **minsyms) | |
f8eba3c6 | 2666 | { |
f8eba3c6 TT |
2667 | struct symbol *sym; |
2668 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
2669 | int ix; | |
2670 | int last_result_len; | |
2671 | VEC (typep) *superclass_vec; | |
2672 | VEC (const_char_ptr) *result_names; | |
2673 | struct collect_info info; | |
2674 | char *name_iter; | |
4224873a | 2675 | |
f8eba3c6 TT |
2676 | /* Sort symbols so that symbols with the same program space are next |
2677 | to each other. */ | |
2678 | qsort (VEC_address (symbolp, sym_classes), | |
2679 | VEC_length (symbolp, sym_classes), | |
2680 | sizeof (symbolp), | |
2681 | compare_symbols); | |
2682 | ||
2683 | info.state = self; | |
40e084e1 KS |
2684 | info.file_symtabs = file_symtabs; |
2685 | info.result.symbols = NULL; | |
2686 | info.result.minimal_symbols = NULL; | |
f8eba3c6 TT |
2687 | |
2688 | /* Iterate over all the types, looking for the names of existing | |
40e084e1 | 2689 | methods matching METHOD_NAME. If we cannot find a direct method in a |
f8eba3c6 TT |
2690 | given program space, then we consider inherited methods; this is |
2691 | not ideal (ideal would be to respect C++ hiding rules), but it | |
2692 | seems good enough and is what GDB has historically done. We only | |
2693 | need to collect the names because later we find all symbols with | |
2694 | those names. This loop is written in a somewhat funny way | |
2695 | because we collect data across the program space before deciding | |
2696 | what to do. */ | |
2697 | superclass_vec = NULL; | |
2698 | make_cleanup (VEC_cleanup (typep), &superclass_vec); | |
2699 | result_names = NULL; | |
2700 | make_cleanup (VEC_cleanup (const_char_ptr), &result_names); | |
2701 | last_result_len = 0; | |
2702 | for (ix = 0; VEC_iterate (symbolp, sym_classes, ix, sym); ++ix) | |
2703 | { | |
2704 | struct type *t; | |
2705 | struct program_space *pspace; | |
2706 | ||
2707 | /* Program spaces that are executing startup should have | |
2708 | been filtered out earlier. */ | |
2709 | gdb_assert (!SYMTAB_PSPACE (SYMBOL_SYMTAB (sym))->executing_startup); | |
2710 | pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
2711 | set_current_program_space (pspace); | |
2712 | t = check_typedef (SYMBOL_TYPE (sym)); | |
40e084e1 | 2713 | find_methods (t, method_name, &result_names, &superclass_vec); |
f8eba3c6 TT |
2714 | |
2715 | /* Handle all items from a single program space at once; and be | |
2716 | sure not to miss the last batch. */ | |
2717 | if (ix == VEC_length (symbolp, sym_classes) - 1 | |
2718 | || (pspace | |
2719 | != SYMTAB_PSPACE (SYMBOL_SYMTAB (VEC_index (symbolp, sym_classes, | |
2720 | ix + 1))))) | |
4224873a | 2721 | { |
f8eba3c6 TT |
2722 | /* If we did not find a direct implementation anywhere in |
2723 | this program space, consider superclasses. */ | |
2724 | if (VEC_length (const_char_ptr, result_names) == last_result_len) | |
40e084e1 KS |
2725 | find_superclass_methods (superclass_vec, method_name, |
2726 | &result_names); | |
f8eba3c6 TT |
2727 | |
2728 | /* We have a list of candidate symbol names, so now we | |
2729 | iterate over the symbol tables looking for all | |
2730 | matches in this pspace. */ | |
2731 | add_all_symbol_names_from_pspace (&info, pspace, result_names); | |
2732 | ||
2733 | VEC_truncate (typep, superclass_vec, 0); | |
2734 | last_result_len = VEC_length (const_char_ptr, result_names); | |
4224873a | 2735 | } |
4224873a | 2736 | } |
f8eba3c6 | 2737 | |
40e084e1 KS |
2738 | if (!VEC_empty (symbolp, info.result.symbols) |
2739 | || !VEC_empty (minsym_and_objfile_d, info.result.minimal_symbols)) | |
4224873a | 2740 | { |
40e084e1 KS |
2741 | *symbols = info.result.symbols; |
2742 | *minsyms = info.result.minimal_symbols; | |
f8eba3c6 | 2743 | do_cleanups (cleanup); |
40e084e1 | 2744 | return; |
4224873a | 2745 | } |
f8eba3c6 | 2746 | |
40e084e1 KS |
2747 | /* Throw an NOT_FOUND_ERROR. This will be caught by the caller |
2748 | and other attempts to locate the symbol will be made. */ | |
2749 | throw_error (NOT_FOUND_ERROR, _("see caller, this text doesn't matter")); | |
f8eba3c6 TT |
2750 | } |
2751 | ||
2752 | \f | |
2753 | ||
2754 | /* This object is used when collecting all matching symtabs. */ | |
2755 | ||
2756 | struct symtab_collector | |
2757 | { | |
2758 | /* The result vector of symtabs. */ | |
2759 | VEC (symtab_p) *symtabs; | |
2760 | ||
2761 | /* This is used to ensure the symtabs are unique. */ | |
2762 | htab_t symtab_table; | |
2763 | }; | |
2764 | ||
2765 | /* Callback for iterate_over_symtabs. */ | |
2766 | ||
2767 | static int | |
2768 | add_symtabs_to_list (struct symtab *symtab, void *d) | |
2769 | { | |
2770 | struct symtab_collector *data = d; | |
2771 | void **slot; | |
2772 | ||
2773 | slot = htab_find_slot (data->symtab_table, symtab, INSERT); | |
2774 | if (!*slot) | |
4224873a | 2775 | { |
f8eba3c6 TT |
2776 | *slot = symtab; |
2777 | VEC_safe_push (symtab_p, data->symtabs, symtab); | |
4224873a | 2778 | } |
f8eba3c6 TT |
2779 | |
2780 | return 0; | |
4224873a DC |
2781 | } |
2782 | ||
f8eba3c6 TT |
2783 | /* Given a file name, return a VEC of all matching symtabs. */ |
2784 | ||
2785 | static VEC (symtab_p) * | |
2786 | collect_symtabs_from_filename (const char *file) | |
2787 | { | |
2788 | struct symtab_collector collector; | |
2789 | struct cleanup *cleanups; | |
2790 | struct program_space *pspace; | |
2791 | ||
2792 | collector.symtabs = NULL; | |
2793 | collector.symtab_table = htab_create (1, htab_hash_pointer, htab_eq_pointer, | |
2794 | NULL); | |
2795 | cleanups = make_cleanup_htab_delete (collector.symtab_table); | |
2796 | ||
2797 | /* Find that file's data. */ | |
2798 | ALL_PSPACES (pspace) | |
2799 | { | |
2800 | if (pspace->executing_startup) | |
2801 | continue; | |
2802 | ||
2803 | set_current_program_space (pspace); | |
2804 | iterate_over_symtabs (file, add_symtabs_to_list, &collector); | |
2805 | } | |
f3c39e76 | 2806 | |
f8eba3c6 TT |
2807 | do_cleanups (cleanups); |
2808 | return collector.symtabs; | |
2809 | } | |
2810 | ||
40e084e1 | 2811 | /* Return all the symtabs associated to the FILENAME. */ |
f8eba3c6 | 2812 | |
40e084e1 KS |
2813 | static VEC (symtab_p) * |
2814 | symtabs_from_filename (const char *filename) | |
2815 | { | |
2816 | VEC (symtab_p) *result; | |
2817 | ||
2818 | result = collect_symtabs_from_filename (filename); | |
f8eba3c6 | 2819 | |
40e084e1 | 2820 | if (VEC_empty (symtab_p, result)) |
f8eba3c6 | 2821 | { |
40e084e1 KS |
2822 | if (!have_full_symbols () && !have_partial_symbols ()) |
2823 | throw_error (NOT_FOUND_ERROR, | |
2824 | _("No symbol table is loaded. " | |
2825 | "Use the \"file\" command.")); | |
2826 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), filename); | |
f8eba3c6 TT |
2827 | } |
2828 | ||
40e084e1 | 2829 | return result; |
84fba31b | 2830 | } |
f3c39e76 | 2831 | |
40e084e1 KS |
2832 | /* Look up a function symbol named NAME in symtabs FILE_SYMTABS. Matching |
2833 | debug symbols are returned in SYMBOLS. Matching minimal symbols are | |
2834 | returned in MINSYMS. */ | |
14e91ac5 | 2835 | |
40e084e1 KS |
2836 | static void |
2837 | find_function_symbols (struct linespec_state *state, | |
2838 | VEC (symtab_p) *file_symtabs, const char *name, | |
2839 | VEC (symbolp) **symbols, | |
2840 | VEC (minsym_and_objfile_d) **minsyms) | |
14e91ac5 | 2841 | { |
40e084e1 KS |
2842 | struct collect_info info; |
2843 | VEC (const_char_ptr) *symbol_names = NULL; | |
2844 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr), | |
2845 | &symbol_names); | |
14e91ac5 | 2846 | |
40e084e1 KS |
2847 | info.state = state; |
2848 | info.result.symbols = NULL; | |
2849 | info.result.minimal_symbols = NULL; | |
2850 | info.file_symtabs = file_symtabs; | |
e0881a8e | 2851 | |
40e084e1 KS |
2852 | /* Try NAME as an Objective-C selector. */ |
2853 | find_imps ((char *) name, &symbol_names); | |
2854 | if (!VEC_empty (const_char_ptr, symbol_names)) | |
2855 | add_all_symbol_names_from_pspace (&info, NULL, symbol_names); | |
2856 | else | |
2857 | add_matching_symbols_to_info (name, &info, NULL); | |
2858 | ||
2859 | do_cleanups (cleanup); | |
2860 | ||
2861 | if (VEC_empty (symbolp, info.result.symbols)) | |
2862 | { | |
2863 | VEC_free (symbolp, info.result.symbols); | |
2864 | *symbols = NULL; | |
14e91ac5 DC |
2865 | } |
2866 | else | |
40e084e1 KS |
2867 | *symbols = info.result.symbols; |
2868 | ||
2869 | if (VEC_empty (minsym_and_objfile_d, info.result.minimal_symbols)) | |
14e91ac5 | 2870 | { |
40e084e1 KS |
2871 | VEC_free (minsym_and_objfile_d, info.result.minimal_symbols); |
2872 | *minsyms = NULL; | |
2873 | } | |
2874 | else | |
2875 | *minsyms = info.result.minimal_symbols; | |
2876 | } | |
2877 | ||
2878 | /* Find all symbols named NAME in FILE_SYMTABS, returning debug symbols | |
2879 | in SYMBOLS and minimal symbols in MINSYMS. */ | |
14e91ac5 | 2880 | |
40e084e1 KS |
2881 | void |
2882 | find_linespec_symbols (struct linespec_state *state, | |
2883 | VEC (symtab_p) *file_symtabs, | |
2884 | const char *name, | |
2885 | VEC (symbolp) **symbols, | |
2886 | VEC (minsym_and_objfile_d) **minsyms) | |
2887 | { | |
2888 | char *klass, *method, *canon; | |
2889 | const char *lookup_name, *last, *p, *scope_op; | |
2890 | struct cleanup *cleanup; | |
2891 | VEC (symbolp) *classes; | |
2892 | volatile struct gdb_exception except; | |
f8eba3c6 | 2893 | |
40e084e1 KS |
2894 | cleanup = demangle_for_lookup (name, state->language->la_language, |
2895 | &lookup_name); | |
2896 | if (state->language->la_language == language_ada) | |
2897 | { | |
2898 | /* In Ada, the symbol lookups are performed using the encoded | |
2899 | name rather than the demangled name. */ | |
2900 | lookup_name = ada_name_for_lookup (name); | |
2901 | make_cleanup (xfree, (void *) lookup_name); | |
2902 | } | |
31aba06f | 2903 | |
40e084e1 KS |
2904 | canon = cp_canonicalize_string_no_typedefs (lookup_name); |
2905 | if (canon != NULL) | |
2906 | { | |
2907 | lookup_name = canon; | |
2908 | cleanup = make_cleanup (xfree, canon); | |
2909 | } | |
f8eba3c6 | 2910 | |
40e084e1 KS |
2911 | /* See if we can find a scope operator and break this symbol |
2912 | name into namespaces${SCOPE_OPERATOR}class_name and method_name. */ | |
2913 | scope_op = "::"; | |
2914 | p = find_toplevel_string (lookup_name, scope_op); | |
2915 | if (p == NULL) | |
2916 | { | |
2917 | /* No C++ scope operator. Try Java. */ | |
2918 | scope_op = "."; | |
2919 | p = find_toplevel_string (lookup_name, scope_op); | |
2920 | } | |
14e91ac5 | 2921 | |
40e084e1 KS |
2922 | last = NULL; |
2923 | while (p != NULL) | |
2924 | { | |
2925 | last = p; | |
2926 | p = find_toplevel_string (p + strlen (scope_op), scope_op); | |
2927 | } | |
14e91ac5 | 2928 | |
40e084e1 KS |
2929 | /* If no scope operator was found, lookup the name as a symbol. */ |
2930 | if (last == NULL) | |
2931 | { | |
2932 | find_function_symbols (state, file_symtabs, lookup_name, | |
2933 | symbols, minsyms); | |
2934 | do_cleanups (cleanup); | |
2935 | return; | |
14e91ac5 DC |
2936 | } |
2937 | ||
40e084e1 KS |
2938 | /* NAME points to the class name. |
2939 | LAST points to the method name. */ | |
2940 | klass = xmalloc ((last - lookup_name + 1) * sizeof (char)); | |
2941 | make_cleanup (xfree, klass); | |
2942 | strncpy (klass, lookup_name, last - lookup_name); | |
2943 | klass[last - lookup_name] = '\0'; | |
14e91ac5 | 2944 | |
40e084e1 KS |
2945 | /* Skip past the scope operator. */ |
2946 | last += strlen (scope_op); | |
2947 | method = xmalloc ((strlen (last) + 1) * sizeof (char)); | |
2948 | make_cleanup (xfree, method); | |
2949 | strcpy (method, last); | |
14e91ac5 | 2950 | |
40e084e1 KS |
2951 | /* Find a list of classes named KLASS. */ |
2952 | classes = lookup_prefix_sym (state, file_symtabs, klass); | |
2953 | if (!VEC_empty (symbolp, classes)) | |
f8eba3c6 | 2954 | { |
40e084e1 KS |
2955 | /* Now locate a list of suitable methods named METHOD. */ |
2956 | TRY_CATCH (except, RETURN_MASK_ERROR) | |
f8eba3c6 | 2957 | { |
40e084e1 KS |
2958 | find_method (state, file_symtabs, klass, method, classes, |
2959 | symbols, minsyms); | |
f8eba3c6 | 2960 | } |
14e91ac5 | 2961 | |
40e084e1 KS |
2962 | /* If successful, we're done. If NOT_FOUND_ERROR |
2963 | was not thrown, rethrow the exception that we did get. | |
2964 | Otherwise, fall back to looking up the entire name as a symbol. | |
2965 | This can happen with namespace::function. */ | |
2966 | if (except.reason >= 0) | |
2967 | { | |
2968 | do_cleanups (cleanup); | |
2969 | return; | |
2970 | } | |
2971 | else if (except.error != NOT_FOUND_ERROR) | |
2972 | throw_exception (except); | |
f8eba3c6 | 2973 | } |
14e91ac5 | 2974 | |
40e084e1 KS |
2975 | /* We couldn't find a class, so we check the entire name as a symbol |
2976 | instead. */ | |
2977 | find_function_symbols (state, file_symtabs, lookup_name, symbols, minsyms); | |
2978 | do_cleanups (cleanup); | |
14e91ac5 DC |
2979 | } |
2980 | ||
40e084e1 KS |
2981 | /* Return all labels named NAME in FUNCTION_SYMBOLS. Return the |
2982 | actual function symbol in which the label was found in LABEL_FUNC_RET. */ | |
0f5238ed | 2983 | |
40e084e1 KS |
2984 | static VEC (symbolp) * |
2985 | find_label_symbols (struct linespec_state *self, | |
2986 | VEC (symbolp) *function_symbols, | |
2987 | VEC (symbolp) **label_funcs_ret, const char *name) | |
0f5238ed | 2988 | { |
f8eba3c6 | 2989 | int ix; |
40e084e1 KS |
2990 | struct block *block; |
2991 | struct symbol *sym; | |
2992 | struct symbol *fn_sym; | |
2993 | VEC (symbolp) *result = NULL; | |
9ef07c8c | 2994 | |
f8eba3c6 | 2995 | if (function_symbols == NULL) |
9ef07c8c | 2996 | { |
f8eba3c6 TT |
2997 | set_current_program_space (self->program_space); |
2998 | block = get_search_block (NULL); | |
2999 | ||
9ef07c8c TT |
3000 | for (; |
3001 | block && !BLOCK_FUNCTION (block); | |
3002 | block = BLOCK_SUPERBLOCK (block)) | |
3003 | ; | |
3004 | if (!block) | |
40e084e1 | 3005 | return NULL; |
f8eba3c6 TT |
3006 | fn_sym = BLOCK_FUNCTION (block); |
3007 | ||
40e084e1 | 3008 | sym = lookup_symbol (name, block, LABEL_DOMAIN, 0); |
f8eba3c6 | 3009 | |
40e084e1 KS |
3010 | if (sym != NULL) |
3011 | { | |
3012 | VEC_safe_push (symbolp, result, sym); | |
3013 | VEC_safe_push (symbolp, *label_funcs_ret, fn_sym); | |
3014 | } | |
3015 | } | |
3016 | else | |
3017 | { | |
3018 | for (ix = 0; | |
3019 | VEC_iterate (symbolp, function_symbols, ix, fn_sym); ++ix) | |
f8eba3c6 | 3020 | { |
40e084e1 KS |
3021 | set_current_program_space (SYMTAB_PSPACE (SYMBOL_SYMTAB (fn_sym))); |
3022 | block = SYMBOL_BLOCK_VALUE (fn_sym); | |
3023 | sym = lookup_symbol (name, block, LABEL_DOMAIN, 0); | |
3024 | ||
3025 | if (sym != NULL) | |
3026 | { | |
3027 | VEC_safe_push (symbolp, result, sym); | |
3028 | VEC_safe_push (symbolp, *label_funcs_ret, fn_sym); | |
3029 | } | |
f8eba3c6 | 3030 | } |
40e084e1 | 3031 | } |
f8eba3c6 | 3032 | |
40e084e1 KS |
3033 | return result; |
3034 | } | |
f8eba3c6 | 3035 | |
40e084e1 KS |
3036 | \f |
3037 | ||
3038 | /* A helper for create_sals_line_offset that handles the 'list_mode' case. */ | |
3039 | ||
3040 | static void | |
3041 | decode_digits_list_mode (struct linespec_state *self, | |
3042 | linespec_p ls, | |
3043 | struct symtabs_and_lines *values, | |
3044 | struct symtab_and_line val) | |
3045 | { | |
3046 | int ix; | |
3047 | struct symtab *elt; | |
3048 | ||
3049 | gdb_assert (self->list_mode); | |
3050 | ||
3051 | for (ix = 0; VEC_iterate (symtab_p, ls->file_symtabs, ix, elt); | |
3052 | ++ix) | |
3053 | { | |
3054 | /* The logic above should ensure this. */ | |
3055 | gdb_assert (elt != NULL); | |
3056 | ||
3057 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
3058 | ||
3059 | /* Simplistic search just for the list command. */ | |
3060 | val.symtab = find_line_symtab (elt, val.line, NULL, NULL); | |
3061 | if (val.symtab == NULL) | |
3062 | val.symtab = elt; | |
3063 | val.pspace = SYMTAB_PSPACE (elt); | |
3064 | val.pc = 0; | |
3065 | val.explicit_line = 1; | |
3066 | ||
3067 | add_sal_to_sals (self, values, &val, NULL); | |
f8eba3c6 | 3068 | } |
40e084e1 | 3069 | } |
f8eba3c6 | 3070 | |
40e084e1 KS |
3071 | /* A helper for create_sals_line_offset that iterates over the symtabs, |
3072 | adding lines to the VEC. */ | |
3073 | ||
3074 | static void | |
3075 | decode_digits_ordinary (struct linespec_state *self, | |
3076 | linespec_p ls, | |
3077 | int line, | |
3078 | struct symtabs_and_lines *sals, | |
3079 | struct linetable_entry **best_entry) | |
3080 | { | |
3081 | int ix; | |
3082 | struct symtab *elt; | |
f8eba3c6 | 3083 | |
40e084e1 | 3084 | for (ix = 0; VEC_iterate (symtab_p, ls->file_symtabs, ix, elt); ++ix) |
f8eba3c6 | 3085 | { |
40e084e1 KS |
3086 | int i; |
3087 | VEC (CORE_ADDR) *pcs; | |
3088 | CORE_ADDR pc; | |
3089 | ||
3090 | /* The logic above should ensure this. */ | |
3091 | gdb_assert (elt != NULL); | |
f8eba3c6 | 3092 | |
40e084e1 | 3093 | set_current_program_space (SYMTAB_PSPACE (elt)); |
f8eba3c6 | 3094 | |
40e084e1 KS |
3095 | pcs = find_pcs_for_symtab_line (elt, line, best_entry); |
3096 | for (i = 0; VEC_iterate (CORE_ADDR, pcs, i, pc); ++i) | |
f8eba3c6 TT |
3097 | { |
3098 | struct symtab_and_line sal; | |
40e084e1 KS |
3099 | |
3100 | init_sal (&sal); | |
3101 | sal.pspace = SYMTAB_PSPACE (elt); | |
3102 | sal.symtab = elt; | |
3103 | sal.line = line; | |
3104 | sal.pc = pc; | |
3105 | add_sal_to_sals_basic (sals, &sal); | |
f8eba3c6 | 3106 | } |
40e084e1 KS |
3107 | |
3108 | VEC_free (CORE_ADDR, pcs); | |
f8eba3c6 | 3109 | } |
40e084e1 KS |
3110 | } |
3111 | ||
3112 | \f | |
3113 | ||
3114 | /* Return the line offset represented by VARIABLE. */ | |
3115 | ||
3116 | static struct line_offset | |
3117 | linespec_parse_variable (struct linespec_state *self, const char *variable) | |
3118 | { | |
3119 | int index = 0; | |
3120 | const char *p; | |
3121 | struct line_offset offset = {0, LINE_OFFSET_NONE}; | |
f8eba3c6 | 3122 | |
40e084e1 KS |
3123 | p = (variable[1] == '$') ? variable + 2 : variable + 1; |
3124 | if (*p == '$') | |
3125 | ++p; | |
3126 | while (*p >= '0' && *p <= '9') | |
3127 | ++p; | |
3128 | if (!*p) /* Reached end of token without hitting non-digit. */ | |
f8eba3c6 | 3129 | { |
40e084e1 KS |
3130 | /* We have a value history reference. */ |
3131 | struct value *val_history; | |
f8eba3c6 | 3132 | |
40e084e1 KS |
3133 | sscanf ((variable[1] == '$') ? variable + 2 : variable + 1, "%d", &index); |
3134 | val_history | |
3135 | = access_value_history ((variable[1] == '$') ? -index : index); | |
3136 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
3137 | error (_("History values used in line " | |
3138 | "specs must have integer values.")); | |
3139 | offset.offset = value_as_long (val_history); | |
3140 | } | |
3141 | else | |
3142 | { | |
3143 | /* Not all digits -- may be user variable/function or a | |
3144 | convenience variable. */ | |
3145 | LONGEST valx; | |
3146 | struct internalvar *ivar; | |
3147 | ||
3148 | /* Try it as a convenience variable. If it is not a convenience | |
3149 | variable, return and allow normal symbol lookup to occur. */ | |
3150 | ivar = lookup_only_internalvar (variable + 1); | |
3151 | if (ivar == NULL) | |
3152 | /* No internal variable with that name. Mark the offset | |
3153 | as unknown to allow the name to be looked up as a symbol. */ | |
3154 | offset.sign = LINE_OFFSET_UNKNOWN; | |
3155 | else | |
3156 | { | |
3157 | /* We found a valid variable name. If it is not an integer, | |
3158 | throw an error. */ | |
3159 | if (!get_internalvar_integer (ivar, &valx)) | |
3160 | error (_("Convenience variables used in line " | |
3161 | "specs must have integer values.")); | |
3162 | else | |
3163 | offset.offset = valx; | |
3164 | } | |
f8eba3c6 TT |
3165 | } |
3166 | ||
40e084e1 | 3167 | return offset; |
f8eba3c6 | 3168 | } |
40e084e1 | 3169 | \f |
f8eba3c6 TT |
3170 | |
3171 | /* A callback used to possibly add a symbol to the results. */ | |
3172 | ||
3173 | static int | |
3174 | collect_symbols (struct symbol *sym, void *data) | |
3175 | { | |
3176 | struct collect_info *info = data; | |
f8eba3c6 | 3177 | |
40e084e1 KS |
3178 | /* In list mode, add all matching symbols, regardless of class. |
3179 | This allows the user to type "list a_global_variable". */ | |
3180 | if (SYMBOL_CLASS (sym) == LOC_BLOCK || info->state->list_mode) | |
3181 | VEC_safe_push (symbolp, info->result.symbols, sym); | |
8e704927 | 3182 | return 1; /* Continue iterating. */ |
f8eba3c6 TT |
3183 | } |
3184 | ||
40e084e1 KS |
3185 | /* We've found a minimal symbol MSYMBOL in OBJFILE to associate with our |
3186 | linespec; return the SAL in RESULT. */ | |
f8eba3c6 TT |
3187 | |
3188 | static void | |
3189 | minsym_found (struct linespec_state *self, struct objfile *objfile, | |
3190 | struct minimal_symbol *msymbol, | |
3191 | struct symtabs_and_lines *result) | |
3192 | { | |
3193 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
3194 | CORE_ADDR pc; | |
3195 | struct symtab_and_line sal; | |
3196 | ||
3197 | sal = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol), | |
3198 | (struct obj_section *) 0, 0); | |
3199 | sal.section = SYMBOL_OBJ_SECTION (msymbol); | |
3200 | ||
3201 | /* The minimal symbol might point to a function descriptor; | |
3202 | resolve it to the actual code address instead. */ | |
3203 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, ¤t_target); | |
3204 | if (pc != sal.pc) | |
3205 | sal = find_pc_sect_line (pc, NULL, 0); | |
3206 | ||
3207 | if (self->funfirstline) | |
3208 | skip_prologue_sal (&sal); | |
3209 | ||
07fea4b4 TT |
3210 | if (maybe_add_address (self->addr_set, objfile->pspace, sal.pc)) |
3211 | add_sal_to_sals (self, result, &sal, SYMBOL_NATURAL_NAME (msymbol)); | |
f8eba3c6 TT |
3212 | } |
3213 | ||
39b856a4 TT |
3214 | /* A helper struct to pass some data through |
3215 | iterate_over_minimal_symbols. */ | |
3216 | ||
3217 | struct collect_minsyms | |
3218 | { | |
3219 | /* The objfile we're examining. */ | |
3220 | struct objfile *objfile; | |
3221 | ||
3222 | /* The funfirstline setting from the initial call. */ | |
3223 | int funfirstline; | |
3224 | ||
095bcf5e JB |
3225 | /* The list_mode setting from the initial call. */ |
3226 | int list_mode; | |
3227 | ||
39b856a4 TT |
3228 | /* The resulting symbols. */ |
3229 | VEC (minsym_and_objfile_d) *msyms; | |
3230 | }; | |
3231 | ||
3232 | /* A helper function to classify a minimal_symbol_type according to | |
3233 | priority. */ | |
3234 | ||
3235 | static int | |
3236 | classify_mtype (enum minimal_symbol_type t) | |
3237 | { | |
3238 | switch (t) | |
f8eba3c6 | 3239 | { |
39b856a4 TT |
3240 | case mst_file_text: |
3241 | case mst_file_data: | |
3242 | case mst_file_bss: | |
3243 | /* Intermediate priority. */ | |
3244 | return 1; | |
3245 | ||
3246 | case mst_solib_trampoline: | |
3247 | /* Lowest priority. */ | |
3248 | return 2; | |
3249 | ||
3250 | default: | |
3251 | /* Highest priority. */ | |
3252 | return 0; | |
f8eba3c6 | 3253 | } |
39b856a4 TT |
3254 | } |
3255 | ||
3256 | /* Callback for qsort that sorts symbols by priority. */ | |
3257 | ||
3258 | static int | |
3259 | compare_msyms (const void *a, const void *b) | |
3260 | { | |
3261 | const minsym_and_objfile_d *moa = a; | |
3262 | const minsym_and_objfile_d *mob = b; | |
3263 | enum minimal_symbol_type ta = MSYMBOL_TYPE (moa->minsym); | |
3264 | enum minimal_symbol_type tb = MSYMBOL_TYPE (mob->minsym); | |
3265 | ||
3266 | return classify_mtype (ta) - classify_mtype (tb); | |
3267 | } | |
3268 | ||
3269 | /* Callback for iterate_over_minimal_symbols that adds the symbol to | |
3270 | the result. */ | |
3271 | ||
3272 | static void | |
3273 | add_minsym (struct minimal_symbol *minsym, void *d) | |
3274 | { | |
3275 | struct collect_minsyms *info = d; | |
3276 | minsym_and_objfile_d mo; | |
3277 | ||
095bcf5e JB |
3278 | /* Exclude data symbols when looking for breakpoint locations. */ |
3279 | if (!info->list_mode) | |
3280 | switch (minsym->type) | |
3281 | { | |
3282 | case mst_slot_got_plt: | |
3283 | case mst_data: | |
3284 | case mst_bss: | |
3285 | case mst_abs: | |
3286 | case mst_file_data: | |
3287 | case mst_file_bss: | |
1a2da5ee JB |
3288 | { |
3289 | /* Make sure this minsym is not a function descriptor | |
3290 | before we decide to discard it. */ | |
3291 | struct gdbarch *gdbarch = info->objfile->gdbarch; | |
3292 | CORE_ADDR addr = gdbarch_convert_from_func_ptr_addr | |
3293 | (gdbarch, SYMBOL_VALUE_ADDRESS (minsym), | |
3294 | ¤t_target); | |
3295 | ||
3296 | if (addr == SYMBOL_VALUE_ADDRESS (minsym)) | |
3297 | return; | |
3298 | } | |
095bcf5e JB |
3299 | } |
3300 | ||
39b856a4 TT |
3301 | mo.minsym = minsym; |
3302 | mo.objfile = info->objfile; | |
3303 | VEC_safe_push (minsym_and_objfile_d, info->msyms, &mo); | |
f8eba3c6 TT |
3304 | } |
3305 | ||
3306 | /* Search minimal symbols in all objfiles for NAME. If SEARCH_PSPACE | |
3307 | is not NULL, the search is restricted to just that program | |
3308 | space. */ | |
3309 | ||
3310 | static void | |
3311 | search_minsyms_for_name (struct collect_info *info, const char *name, | |
3312 | struct program_space *search_pspace) | |
3313 | { | |
3314 | struct objfile *objfile; | |
3315 | struct program_space *pspace; | |
3316 | ||
3317 | ALL_PSPACES (pspace) | |
3318 | { | |
39b856a4 TT |
3319 | struct collect_minsyms local; |
3320 | struct cleanup *cleanup; | |
3321 | ||
f8eba3c6 TT |
3322 | if (search_pspace != NULL && search_pspace != pspace) |
3323 | continue; | |
3324 | if (pspace->executing_startup) | |
3325 | continue; | |
3326 | ||
3327 | set_current_program_space (pspace); | |
3328 | ||
39b856a4 TT |
3329 | memset (&local, 0, sizeof (local)); |
3330 | local.funfirstline = info->state->funfirstline; | |
095bcf5e | 3331 | local.list_mode = info->state->list_mode; |
39b856a4 TT |
3332 | |
3333 | cleanup = make_cleanup (VEC_cleanup (minsym_and_objfile_d), | |
3334 | &local.msyms); | |
3335 | ||
f8eba3c6 TT |
3336 | ALL_OBJFILES (objfile) |
3337 | { | |
39b856a4 TT |
3338 | local.objfile = objfile; |
3339 | iterate_over_minimal_symbols (objfile, name, add_minsym, &local); | |
9ef07c8c | 3340 | } |
39b856a4 TT |
3341 | |
3342 | if (!VEC_empty (minsym_and_objfile_d, local.msyms)) | |
3343 | { | |
3344 | int classification; | |
3345 | int ix; | |
3346 | minsym_and_objfile_d *item; | |
3347 | ||
3348 | qsort (VEC_address (minsym_and_objfile_d, local.msyms), | |
3349 | VEC_length (minsym_and_objfile_d, local.msyms), | |
3350 | sizeof (minsym_and_objfile_d), | |
3351 | compare_msyms); | |
3352 | ||
3353 | /* Now the minsyms are in classification order. So, we walk | |
3354 | over them and process just the minsyms with the same | |
3355 | classification as the very first minsym in the list. */ | |
3356 | item = VEC_index (minsym_and_objfile_d, local.msyms, 0); | |
3357 | classification = classify_mtype (MSYMBOL_TYPE (item->minsym)); | |
3358 | ||
3359 | for (ix = 0; | |
3360 | VEC_iterate (minsym_and_objfile_d, local.msyms, ix, item); | |
3361 | ++ix) | |
3362 | { | |
3363 | if (classify_mtype (MSYMBOL_TYPE (item->minsym)) != classification) | |
3364 | break; | |
3365 | ||
40e084e1 KS |
3366 | VEC_safe_push (minsym_and_objfile_d, |
3367 | info->result.minimal_symbols, item); | |
39b856a4 TT |
3368 | } |
3369 | } | |
3370 | ||
3371 | do_cleanups (cleanup); | |
f8eba3c6 TT |
3372 | } |
3373 | } | |
3374 | ||
3375 | /* A helper function to add all symbols matching NAME to INFO. If | |
3376 | PSPACE is not NULL, the search is restricted to just that program | |
3377 | space. */ | |
0f5238ed | 3378 | |
f8eba3c6 TT |
3379 | static void |
3380 | add_matching_symbols_to_info (const char *name, | |
3381 | struct collect_info *info, | |
3382 | struct program_space *pspace) | |
3383 | { | |
3384 | int ix; | |
3385 | struct symtab *elt; | |
0f5238ed | 3386 | |
40e084e1 | 3387 | for (ix = 0; VEC_iterate (symtab_p, info->file_symtabs, ix, elt); ++ix) |
f8eba3c6 TT |
3388 | { |
3389 | struct symbol *sym; | |
0f5238ed | 3390 | |
f8eba3c6 TT |
3391 | if (elt == NULL) |
3392 | { | |
40e084e1 | 3393 | iterate_over_all_matching_symtabs (info->state, name, VAR_DOMAIN, |
f8eba3c6 | 3394 | collect_symbols, info, |
481860b3 | 3395 | pspace, 1); |
f8eba3c6 TT |
3396 | search_minsyms_for_name (info, name, pspace); |
3397 | } | |
3398 | else if (pspace == NULL || pspace == SYMTAB_PSPACE (elt)) | |
3399 | { | |
3400 | /* Program spaces that are executing startup should have | |
3401 | been filtered out earlier. */ | |
3402 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
3403 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
3404 | LA_ITERATE_OVER_SYMBOLS (get_search_block (elt), name, | |
3405 | VAR_DOMAIN, collect_symbols, | |
3406 | info); | |
3407 | } | |
3408 | } | |
0f5238ed TT |
3409 | } |
3410 | ||
14e91ac5 DC |
3411 | \f |
3412 | ||
413dad4d DC |
3413 | /* Now come some functions that are called from multiple places within |
3414 | decode_line_1. */ | |
3415 | ||
f8eba3c6 TT |
3416 | static int |
3417 | symbol_to_sal (struct symtab_and_line *result, | |
3418 | int funfirstline, struct symbol *sym) | |
413dad4d | 3419 | { |
413dad4d | 3420 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
50641945 | 3421 | { |
f8eba3c6 TT |
3422 | *result = find_function_start_sal (sym, funfirstline); |
3423 | return 1; | |
50641945 | 3424 | } |
413dad4d DC |
3425 | else |
3426 | { | |
62853458 | 3427 | if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0) |
413dad4d | 3428 | { |
f8eba3c6 TT |
3429 | init_sal (result); |
3430 | result->symtab = SYMBOL_SYMTAB (sym); | |
3431 | result->line = SYMBOL_LINE (sym); | |
3432 | result->pc = SYMBOL_VALUE_ADDRESS (sym); | |
3433 | result->pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
3434 | result->explicit_pc = 1; | |
3435 | return 1; | |
413dad4d | 3436 | } |
62853458 | 3437 | else if (funfirstline) |
dcf9f4ab | 3438 | { |
f8eba3c6 | 3439 | /* Nothing. */ |
dcf9f4ab | 3440 | } |
62853458 TT |
3441 | else if (SYMBOL_LINE (sym) != 0) |
3442 | { | |
3443 | /* We know its line number. */ | |
f8eba3c6 TT |
3444 | init_sal (result); |
3445 | result->symtab = SYMBOL_SYMTAB (sym); | |
3446 | result->line = SYMBOL_LINE (sym); | |
3447 | result->pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
3448 | return 1; | |
62853458 | 3449 | } |
413dad4d | 3450 | } |
f8eba3c6 TT |
3451 | |
3452 | return 0; | |
413dad4d | 3453 | } |
50641945 | 3454 | |
f8eba3c6 | 3455 | /* See the comment in linespec.h. */ |
50641945 | 3456 | |
f8eba3c6 TT |
3457 | void |
3458 | init_linespec_result (struct linespec_result *lr) | |
413dad4d | 3459 | { |
f8eba3c6 TT |
3460 | memset (lr, 0, sizeof (*lr)); |
3461 | } | |
413dad4d | 3462 | |
f8eba3c6 | 3463 | /* See the comment in linespec.h. */ |
bccdca4a | 3464 | |
f8eba3c6 TT |
3465 | void |
3466 | destroy_linespec_result (struct linespec_result *ls) | |
3467 | { | |
3468 | int i; | |
3469 | struct linespec_sals *lsal; | |
bccdca4a | 3470 | |
f8eba3c6 TT |
3471 | xfree (ls->addr_string); |
3472 | for (i = 0; VEC_iterate (linespec_sals, ls->sals, i, lsal); ++i) | |
3473 | { | |
3474 | xfree (lsal->canonical); | |
3475 | xfree (lsal->sals.sals); | |
3476 | } | |
3477 | VEC_free (linespec_sals, ls->sals); | |
3478 | } | |
e48883f7 | 3479 | |
f8eba3c6 TT |
3480 | /* Cleanup function for a linespec_result. */ |
3481 | ||
3482 | static void | |
3483 | cleanup_linespec_result (void *a) | |
3484 | { | |
3485 | destroy_linespec_result (a); | |
50641945 | 3486 | } |
7efd8fc2 | 3487 | |
f8eba3c6 TT |
3488 | /* See the comment in linespec.h. */ |
3489 | ||
3490 | struct cleanup * | |
3491 | make_cleanup_destroy_linespec_result (struct linespec_result *ls) | |
7efd8fc2 | 3492 | { |
f8eba3c6 | 3493 | return make_cleanup (cleanup_linespec_result, ls); |
7efd8fc2 | 3494 | } |