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50641945 | 1 | /* Parser for linespec for the GNU debugger, GDB. |
05ff989b | 2 | |
32d0add0 | 3 | Copyright (C) 1986-2015 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" |
53c5240f | 36 | #include "language.h" |
dc67126b NR |
37 | #include "interps.h" |
38 | #include "mi/mi-cmds.h" | |
bccdca4a | 39 | #include "target.h" |
94af9270 | 40 | #include "arch-utils.h" |
c00f8484 KS |
41 | #include <ctype.h> |
42 | #include "cli/cli-utils.h" | |
731971ed | 43 | #include "filenames.h" |
f8eba3c6 | 44 | #include "ada-lang.h" |
39cf75f7 | 45 | #include "stack.h" |
f00aae0f | 46 | #include "location.h" |
f8eba3c6 | 47 | |
f8eba3c6 TT |
48 | typedef struct symbol *symbolp; |
49 | DEF_VEC_P (symbolp); | |
50 | ||
51 | typedef struct type *typep; | |
52 | DEF_VEC_P (typep); | |
53 | ||
54 | /* An address entry is used to ensure that any given location is only | |
55 | added to the result a single time. It holds an address and the | |
56 | program space from which the address came. */ | |
57 | ||
58 | struct address_entry | |
59 | { | |
60 | struct program_space *pspace; | |
61 | CORE_ADDR addr; | |
62 | }; | |
63 | ||
f60e2d5c | 64 | typedef struct bound_minimal_symbol bound_minimal_symbol_d; |
40e084e1 | 65 | |
f60e2d5c | 66 | DEF_VEC_O (bound_minimal_symbol_d); |
40e084e1 KS |
67 | |
68 | /* An enumeration of possible signs for a line offset. */ | |
69 | enum offset_relative_sign | |
70 | { | |
71 | /* No sign */ | |
72 | LINE_OFFSET_NONE, | |
73 | ||
74 | /* A plus sign ("+") */ | |
75 | LINE_OFFSET_PLUS, | |
76 | ||
77 | /* A minus sign ("-") */ | |
78 | LINE_OFFSET_MINUS, | |
79 | ||
80 | /* A special "sign" for unspecified offset. */ | |
81 | LINE_OFFSET_UNKNOWN | |
82 | }; | |
83 | ||
84 | /* A line offset in a linespec. */ | |
85 | ||
86 | struct line_offset | |
87 | { | |
88 | /* Line offset and any specified sign. */ | |
89 | int offset; | |
90 | enum offset_relative_sign sign; | |
91 | }; | |
92 | ||
93 | /* A linespec. Elements of this structure are filled in by a parser | |
94 | (either parse_linespec or some other function). The structure is | |
95 | then converted into SALs by convert_linespec_to_sals. */ | |
96 | ||
97 | struct linespec | |
98 | { | |
99 | /* An expression and the resulting PC. Specifying an expression | |
100 | currently precludes the use of other members. */ | |
101 | ||
102 | /* The expression entered by the user. */ | |
5d94e27b | 103 | const char *expression; |
40e084e1 KS |
104 | |
105 | /* The resulting PC expression derived from evaluating EXPRESSION. */ | |
106 | CORE_ADDR expr_pc; | |
107 | ||
108 | /* Any specified file symtabs. */ | |
109 | ||
110 | /* The user-supplied source filename or NULL if none was specified. */ | |
5d94e27b | 111 | const char *source_filename; |
40e084e1 KS |
112 | |
113 | /* The list of symtabs to search to which to limit the search. May not | |
114 | be NULL. If SOURCE_FILENAME is NULL (no user-specified filename), | |
115 | FILE_SYMTABS should contain one single NULL member. This will | |
116 | cause the code to use the default symtab. */ | |
ec94af83 | 117 | VEC (symtab_ptr) *file_symtabs; |
40e084e1 KS |
118 | |
119 | /* The name of a function or method and any matching symbols. */ | |
120 | ||
121 | /* The user-specified function name. If no function name was | |
122 | supplied, this may be NULL. */ | |
5d94e27b | 123 | const char *function_name; |
40e084e1 KS |
124 | |
125 | /* A list of matching function symbols and minimal symbols. Both lists | |
126 | may be NULL if no matching symbols were found. */ | |
127 | VEC (symbolp) *function_symbols; | |
f60e2d5c | 128 | VEC (bound_minimal_symbol_d) *minimal_symbols; |
40e084e1 KS |
129 | |
130 | /* The name of a label and matching symbols. */ | |
131 | ||
132 | /* The user-specified label name. */ | |
5d94e27b | 133 | const char *label_name; |
40e084e1 KS |
134 | |
135 | /* A structure of matching label symbols and the corresponding | |
136 | function symbol in which the label was found. Both may be NULL | |
137 | or both must be non-NULL. */ | |
138 | struct | |
139 | { | |
140 | VEC (symbolp) *label_symbols; | |
141 | VEC (symbolp) *function_symbols; | |
142 | } labels; | |
143 | ||
144 | /* Line offset. It may be LINE_OFFSET_UNKNOWN, meaning that no | |
145 | offset was specified. */ | |
146 | struct line_offset line_offset; | |
147 | }; | |
148 | typedef struct linespec *linespec_p; | |
149 | ||
33f448b1 JK |
150 | /* A canonical linespec represented as a symtab-related string. |
151 | ||
152 | Each entry represents the "SYMTAB:SUFFIX" linespec string. | |
153 | SYMTAB can be converted for example by symtab_to_fullname or | |
154 | symtab_to_filename_for_display as needed. */ | |
155 | ||
156 | struct linespec_canonical_name | |
157 | { | |
158 | /* Remaining text part of the linespec string. */ | |
159 | char *suffix; | |
160 | ||
161 | /* If NULL then SUFFIX is the whole linespec string. */ | |
162 | struct symtab *symtab; | |
163 | }; | |
164 | ||
f8eba3c6 TT |
165 | /* An instance of this is used to keep all state while linespec |
166 | operates. This instance is passed around as a 'this' pointer to | |
167 | the various implementation methods. */ | |
168 | ||
169 | struct linespec_state | |
170 | { | |
40e084e1 KS |
171 | /* The language in use during linespec processing. */ |
172 | const struct language_defn *language; | |
173 | ||
f8eba3c6 TT |
174 | /* The program space as seen when the module was entered. */ |
175 | struct program_space *program_space; | |
176 | ||
177 | /* The default symtab to use, if no other symtab is specified. */ | |
178 | struct symtab *default_symtab; | |
179 | ||
180 | /* The default line to use. */ | |
181 | int default_line; | |
182 | ||
f8eba3c6 TT |
183 | /* The 'funfirstline' value that was passed in to decode_line_1 or |
184 | decode_line_full. */ | |
185 | int funfirstline; | |
186 | ||
187 | /* Nonzero if we are running in 'list' mode; see decode_line_list. */ | |
188 | int list_mode; | |
189 | ||
190 | /* The 'canonical' value passed to decode_line_full, or NULL. */ | |
191 | struct linespec_result *canonical; | |
192 | ||
193 | /* Canonical strings that mirror the symtabs_and_lines result. */ | |
33f448b1 | 194 | struct linespec_canonical_name *canonical_names; |
f8eba3c6 TT |
195 | |
196 | /* This is a set of address_entry objects which is used to prevent | |
197 | duplicate symbols from being entered into the result. */ | |
198 | htab_t addr_set; | |
199 | }; | |
200 | ||
201 | /* This is a helper object that is used when collecting symbols into a | |
202 | result. */ | |
203 | ||
204 | struct collect_info | |
205 | { | |
206 | /* The linespec object in use. */ | |
207 | struct linespec_state *state; | |
208 | ||
40e084e1 | 209 | /* A list of symtabs to which to restrict matches. */ |
ec94af83 | 210 | VEC (symtab_ptr) *file_symtabs; |
40e084e1 | 211 | |
f8eba3c6 | 212 | /* The result being accumulated. */ |
40e084e1 KS |
213 | struct |
214 | { | |
215 | VEC (symbolp) *symbols; | |
f60e2d5c | 216 | VEC (bound_minimal_symbol_d) *minimal_symbols; |
40e084e1 | 217 | } result; |
f8eba3c6 | 218 | }; |
50641945 | 219 | |
40e084e1 | 220 | /* Token types */ |
50641945 | 221 | |
40e084e1 KS |
222 | enum ls_token_type |
223 | { | |
224 | /* A keyword */ | |
225 | LSTOKEN_KEYWORD = 0, | |
44fe14ab | 226 | |
40e084e1 KS |
227 | /* A colon "separator" */ |
228 | LSTOKEN_COLON, | |
44fe14ab | 229 | |
40e084e1 KS |
230 | /* A string */ |
231 | LSTOKEN_STRING, | |
0960f083 | 232 | |
40e084e1 KS |
233 | /* A number */ |
234 | LSTOKEN_NUMBER, | |
235 | ||
236 | /* A comma */ | |
237 | LSTOKEN_COMMA, | |
238 | ||
239 | /* EOI (end of input) */ | |
240 | LSTOKEN_EOI, | |
241 | ||
242 | /* Consumed token */ | |
243 | LSTOKEN_CONSUMED | |
244 | }; | |
245 | typedef enum ls_token_type linespec_token_type; | |
246 | ||
247 | /* List of keywords */ | |
248 | ||
249 | static const char * const linespec_keywords[] = { "if", "thread", "task" }; | |
0578b14e | 250 | #define IF_KEYWORD_INDEX 0 |
40e084e1 KS |
251 | |
252 | /* A token of the linespec lexer */ | |
253 | ||
254 | struct ls_token | |
255 | { | |
256 | /* The type of the token */ | |
257 | linespec_token_type type; | |
258 | ||
259 | /* Data for the token */ | |
260 | union | |
261 | { | |
262 | /* A string, given as a stoken */ | |
263 | struct stoken string; | |
264 | ||
265 | /* A keyword */ | |
266 | const char *keyword; | |
267 | } data; | |
268 | }; | |
269 | typedef struct ls_token linespec_token; | |
270 | ||
271 | #define LS_TOKEN_STOKEN(TOK) (TOK).data.string | |
272 | #define LS_TOKEN_KEYWORD(TOK) (TOK).data.keyword | |
273 | ||
274 | /* An instance of the linespec parser. */ | |
275 | ||
276 | struct ls_parser | |
277 | { | |
278 | /* Lexer internal data */ | |
279 | struct | |
280 | { | |
281 | /* Save head of input stream. */ | |
d7561cbb | 282 | const char *saved_arg; |
d2630e69 | 283 | |
40e084e1 | 284 | /* Head of the input stream. */ |
f00aae0f KS |
285 | const char *stream; |
286 | #define PARSER_STREAM(P) ((P)->lexer.stream) | |
614b3b14 | 287 | |
40e084e1 KS |
288 | /* The current token. */ |
289 | linespec_token current; | |
290 | } lexer; | |
93d91629 | 291 | |
40e084e1 KS |
292 | /* Is the entire linespec quote-enclosed? */ |
293 | int is_quote_enclosed; | |
294 | ||
295 | /* The state of the parse. */ | |
296 | struct linespec_state state; | |
297 | #define PARSER_STATE(PPTR) (&(PPTR)->state) | |
4224873a | 298 | |
40e084e1 KS |
299 | /* The result of the parse. */ |
300 | struct linespec result; | |
301 | #define PARSER_RESULT(PPTR) (&(PPTR)->result) | |
302 | }; | |
303 | typedef struct ls_parser linespec_parser; | |
50641945 | 304 | |
40e084e1 | 305 | /* Prototypes for local functions. */ |
50641945 | 306 | |
4eeaa230 DE |
307 | static void iterate_over_file_blocks (struct symtab *symtab, |
308 | const char *name, domain_enum domain, | |
309 | symbol_found_callback_ftype *callback, | |
310 | void *data); | |
311 | ||
40e084e1 KS |
312 | static void initialize_defaults (struct symtab **default_symtab, |
313 | int *default_line); | |
50641945 | 314 | |
a06efdd6 | 315 | CORE_ADDR linespec_expression_to_pc (const char **exp_ptr); |
aee8d8ba | 316 | |
40e084e1 KS |
317 | static struct symtabs_and_lines decode_objc (struct linespec_state *self, |
318 | linespec_p ls, | |
f00aae0f | 319 | const char *arg); |
aee8d8ba | 320 | |
ec94af83 | 321 | static VEC (symtab_ptr) *symtabs_from_filename (const char *); |
50641945 | 322 | |
40e084e1 KS |
323 | static VEC (symbolp) *find_label_symbols (struct linespec_state *self, |
324 | VEC (symbolp) *function_symbols, | |
325 | VEC (symbolp) **label_funcs_ret, | |
326 | const char *name); | |
50641945 | 327 | |
b1ae631a | 328 | static void find_linespec_symbols (struct linespec_state *self, |
ec94af83 | 329 | VEC (symtab_ptr) *file_symtabs, |
b1ae631a DE |
330 | const char *name, |
331 | VEC (symbolp) **symbols, | |
f60e2d5c | 332 | VEC (bound_minimal_symbol_d) **minsyms); |
f8eba3c6 | 333 | |
40e084e1 KS |
334 | static struct line_offset |
335 | linespec_parse_variable (struct linespec_state *self, | |
336 | const char *variable); | |
889f28e2 | 337 | |
f8eba3c6 TT |
338 | static int symbol_to_sal (struct symtab_and_line *result, |
339 | int funfirstline, struct symbol *sym); | |
50641945 | 340 | |
f8eba3c6 TT |
341 | static void add_matching_symbols_to_info (const char *name, |
342 | struct collect_info *info, | |
343 | struct program_space *pspace); | |
f3c39e76 | 344 | |
f8eba3c6 TT |
345 | static void add_all_symbol_names_from_pspace (struct collect_info *info, |
346 | struct program_space *pspace, | |
347 | VEC (const_char_ptr) *names); | |
9ef07c8c | 348 | |
ec94af83 | 349 | static VEC (symtab_ptr) *collect_symtabs_from_filename (const char *file); |
84fba31b | 350 | |
40e084e1 KS |
351 | static void decode_digits_ordinary (struct linespec_state *self, |
352 | linespec_p ls, | |
353 | int line, | |
354 | struct symtabs_and_lines *sals, | |
355 | struct linetable_entry **best_entry); | |
14e91ac5 | 356 | |
40e084e1 KS |
357 | static void decode_digits_list_mode (struct linespec_state *self, |
358 | linespec_p ls, | |
359 | struct symtabs_and_lines *values, | |
360 | struct symtab_and_line val); | |
0f5238ed | 361 | |
40e084e1 KS |
362 | static void minsym_found (struct linespec_state *self, struct objfile *objfile, |
363 | struct minimal_symbol *msymbol, | |
364 | struct symtabs_and_lines *result); | |
bca02a8a | 365 | |
40e084e1 | 366 | static int compare_symbols (const void *a, const void *b); |
413dad4d | 367 | |
40e084e1 | 368 | static int compare_msymbols (const void *a, const void *b); |
413dad4d | 369 | |
40e084e1 | 370 | static const char *find_toplevel_char (const char *s, char c); |
f8eba3c6 | 371 | |
40e084e1 KS |
372 | /* Permitted quote characters for the parser. This is different from the |
373 | completer's quote characters to allow backward compatibility with the | |
374 | previous parser. */ | |
375 | static const char *const linespec_quote_characters = "\"\'"; | |
f8eba3c6 | 376 | |
40e084e1 KS |
377 | /* Lexer functions. */ |
378 | ||
379 | /* Lex a number from the input in PARSER. This only supports | |
dd3818c8 KS |
380 | decimal numbers. |
381 | ||
d7cbec71 | 382 | Return true if input is decimal numbers. Return false if not. */ |
40e084e1 | 383 | |
d7cbec71 HZ |
384 | static int |
385 | linespec_lexer_lex_number (linespec_parser *parser, linespec_token *tokenp) | |
40e084e1 | 386 | { |
d7cbec71 HZ |
387 | tokenp->type = LSTOKEN_NUMBER; |
388 | LS_TOKEN_STOKEN (*tokenp).length = 0; | |
389 | LS_TOKEN_STOKEN (*tokenp).ptr = PARSER_STREAM (parser); | |
40e084e1 KS |
390 | |
391 | /* Keep any sign at the start of the stream. */ | |
392 | if (*PARSER_STREAM (parser) == '+' || *PARSER_STREAM (parser) == '-') | |
393 | { | |
d7cbec71 | 394 | ++LS_TOKEN_STOKEN (*tokenp).length; |
40e084e1 KS |
395 | ++(PARSER_STREAM (parser)); |
396 | } | |
397 | ||
398 | while (isdigit (*PARSER_STREAM (parser))) | |
399 | { | |
d7cbec71 | 400 | ++LS_TOKEN_STOKEN (*tokenp).length; |
40e084e1 | 401 | ++(PARSER_STREAM (parser)); |
f8eba3c6 | 402 | } |
40e084e1 | 403 | |
dd3818c8 | 404 | /* If the next character in the input buffer is not a space, comma, |
eff9c3e6 | 405 | quote, or colon, this input does not represent a number. */ |
dd3818c8 KS |
406 | if (*PARSER_STREAM (parser) != '\0' |
407 | && !isspace (*PARSER_STREAM (parser)) && *PARSER_STREAM (parser) != ',' | |
eff9c3e6 KS |
408 | && *PARSER_STREAM (parser) != ':' |
409 | && !strchr (linespec_quote_characters, *PARSER_STREAM (parser))) | |
d7cbec71 HZ |
410 | { |
411 | PARSER_STREAM (parser) = LS_TOKEN_STOKEN (*tokenp).ptr; | |
412 | return 0; | |
413 | } | |
414 | ||
415 | return 1; | |
f8eba3c6 TT |
416 | } |
417 | ||
32b40af9 | 418 | /* See linespec.h. */ |
f8eba3c6 | 419 | |
0578b14e | 420 | const char * |
40e084e1 | 421 | linespec_lexer_lex_keyword (const char *p) |
f8eba3c6 | 422 | { |
40e084e1 | 423 | int i; |
f8eba3c6 | 424 | |
40e084e1 KS |
425 | if (p != NULL) |
426 | { | |
427 | for (i = 0; i < ARRAY_SIZE (linespec_keywords); ++i) | |
428 | { | |
429 | int len = strlen (linespec_keywords[i]); | |
430 | ||
431 | /* If P begins with one of the keywords and the next | |
0578b14e KS |
432 | character is whitespace, we may have found a keyword. |
433 | It is only a keyword if it is not followed by another | |
434 | keyword. */ | |
40e084e1 | 435 | if (strncmp (p, linespec_keywords[i], len) == 0 |
0578b14e KS |
436 | && isspace (p[len])) |
437 | { | |
438 | int j; | |
439 | ||
440 | /* Special case: "if" ALWAYS stops the lexer, since it | |
441 | is not possible to predict what is going to appear in | |
442 | the condition, which can only be parsed after SaLs have | |
443 | been found. */ | |
444 | if (i != IF_KEYWORD_INDEX) | |
445 | { | |
446 | p += len; | |
447 | p = skip_spaces_const (p); | |
448 | for (j = 0; j < ARRAY_SIZE (linespec_keywords); ++j) | |
449 | { | |
450 | int nextlen = strlen (linespec_keywords[j]); | |
451 | ||
452 | if (strncmp (p, linespec_keywords[j], nextlen) == 0 | |
453 | && isspace (p[nextlen])) | |
454 | return NULL; | |
455 | } | |
456 | } | |
457 | ||
458 | return linespec_keywords[i]; | |
459 | } | |
40e084e1 KS |
460 | } |
461 | } | |
462 | ||
463 | return NULL; | |
f8eba3c6 TT |
464 | } |
465 | ||
40e084e1 KS |
466 | /* Does STRING represent an Ada operator? If so, return the length |
467 | of the decoded operator name. If not, return 0. */ | |
f8eba3c6 TT |
468 | |
469 | static int | |
40e084e1 | 470 | is_ada_operator (const char *string) |
f8eba3c6 | 471 | { |
40e084e1 | 472 | const struct ada_opname_map *mapping; |
f8eba3c6 | 473 | |
40e084e1 KS |
474 | for (mapping = ada_opname_table; |
475 | mapping->encoded != NULL | |
61012eef | 476 | && !startswith (string, mapping->decoded); ++mapping) |
40e084e1 KS |
477 | ; |
478 | ||
479 | return mapping->decoded == NULL ? 0 : strlen (mapping->decoded); | |
f8eba3c6 TT |
480 | } |
481 | ||
40e084e1 KS |
482 | /* Find QUOTE_CHAR in STRING, accounting for the ':' terminal. Return |
483 | the location of QUOTE_CHAR, or NULL if not found. */ | |
f8eba3c6 | 484 | |
40e084e1 KS |
485 | static const char * |
486 | skip_quote_char (const char *string, char quote_char) | |
f8eba3c6 | 487 | { |
40e084e1 | 488 | const char *p, *last; |
f8eba3c6 | 489 | |
40e084e1 KS |
490 | p = last = find_toplevel_char (string, quote_char); |
491 | while (p && *p != '\0' && *p != ':') | |
492 | { | |
493 | p = find_toplevel_char (p, quote_char); | |
494 | if (p != NULL) | |
495 | last = p++; | |
496 | } | |
f8eba3c6 | 497 | |
40e084e1 | 498 | return last; |
f8eba3c6 | 499 | } |
50641945 | 500 | |
40e084e1 KS |
501 | /* Make a writable copy of the string given in TOKEN, trimming |
502 | any trailing whitespace. */ | |
50641945 | 503 | |
40e084e1 KS |
504 | static char * |
505 | copy_token_string (linespec_token token) | |
50641945 | 506 | { |
40e084e1 | 507 | char *str, *s; |
e0881a8e | 508 | |
40e084e1 KS |
509 | if (token.type == LSTOKEN_KEYWORD) |
510 | return xstrdup (LS_TOKEN_KEYWORD (token)); | |
255e7dbf | 511 | |
40e084e1 KS |
512 | str = savestring (LS_TOKEN_STOKEN (token).ptr, |
513 | LS_TOKEN_STOKEN (token).length); | |
514 | s = remove_trailing_whitespace (str, str + LS_TOKEN_STOKEN (token).length); | |
515 | *s = '\0'; | |
e0881a8e | 516 | |
40e084e1 KS |
517 | return str; |
518 | } | |
255e7dbf | 519 | |
40e084e1 | 520 | /* Does P represent the end of a quote-enclosed linespec? */ |
f3a5f1de | 521 | |
40e084e1 KS |
522 | static int |
523 | is_closing_quote_enclosed (const char *p) | |
524 | { | |
525 | if (strchr (linespec_quote_characters, *p)) | |
526 | ++p; | |
527 | p = skip_spaces ((char *) p); | |
528 | return (*p == '\0' || linespec_lexer_lex_keyword (p)); | |
50641945 FN |
529 | } |
530 | ||
40e084e1 KS |
531 | /* Find the end of the parameter list that starts with *INPUT. |
532 | This helper function assists with lexing string segments | |
533 | which might contain valid (non-terminating) commas. */ | |
481860b3 | 534 | |
d7561cbb KS |
535 | static const char * |
536 | find_parameter_list_end (const char *input) | |
481860b3 | 537 | { |
40e084e1 KS |
538 | char end_char, start_char; |
539 | int depth; | |
d7561cbb | 540 | const char *p; |
481860b3 | 541 | |
40e084e1 KS |
542 | start_char = *input; |
543 | if (start_char == '(') | |
544 | end_char = ')'; | |
545 | else if (start_char == '<') | |
546 | end_char = '>'; | |
547 | else | |
548 | return NULL; | |
481860b3 | 549 | |
40e084e1 KS |
550 | p = input; |
551 | depth = 0; | |
552 | while (*p) | |
481860b3 | 553 | { |
40e084e1 KS |
554 | if (*p == start_char) |
555 | ++depth; | |
556 | else if (*p == end_char) | |
557 | { | |
558 | if (--depth == 0) | |
559 | { | |
560 | ++p; | |
561 | break; | |
562 | } | |
563 | } | |
564 | ++p; | |
481860b3 | 565 | } |
40e084e1 KS |
566 | |
567 | return p; | |
481860b3 GB |
568 | } |
569 | ||
74ccd7f5 | 570 | |
40e084e1 KS |
571 | /* Lex a string from the input in PARSER. */ |
572 | ||
573 | static linespec_token | |
574 | linespec_lexer_lex_string (linespec_parser *parser) | |
74ccd7f5 | 575 | { |
40e084e1 | 576 | linespec_token token; |
d7561cbb | 577 | const char *start = PARSER_STREAM (parser); |
74ccd7f5 | 578 | |
40e084e1 | 579 | token.type = LSTOKEN_STRING; |
74ccd7f5 | 580 | |
40e084e1 KS |
581 | /* If the input stream starts with a quote character, skip to the next |
582 | quote character, regardless of the content. */ | |
583 | if (strchr (linespec_quote_characters, *PARSER_STREAM (parser))) | |
584 | { | |
585 | const char *end; | |
586 | char quote_char = *PARSER_STREAM (parser); | |
50641945 | 587 | |
40e084e1 KS |
588 | /* Special case: Ada operators. */ |
589 | if (PARSER_STATE (parser)->language->la_language == language_ada | |
590 | && quote_char == '\"') | |
591 | { | |
592 | int len = is_ada_operator (PARSER_STREAM (parser)); | |
50641945 | 593 | |
40e084e1 KS |
594 | if (len != 0) |
595 | { | |
596 | /* The input is an Ada operator. Return the quoted string | |
597 | as-is. */ | |
598 | LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser); | |
599 | LS_TOKEN_STOKEN (token).length = len; | |
600 | PARSER_STREAM (parser) += len; | |
601 | return token; | |
602 | } | |
f8eba3c6 | 603 | |
40e084e1 KS |
604 | /* The input does not represent an Ada operator -- fall through |
605 | to normal quoted string handling. */ | |
606 | } | |
f8eba3c6 | 607 | |
40e084e1 KS |
608 | /* Skip past the beginning quote. */ |
609 | ++(PARSER_STREAM (parser)); | |
74ccd7f5 | 610 | |
40e084e1 KS |
611 | /* Mark the start of the string. */ |
612 | LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser); | |
f8eba3c6 | 613 | |
40e084e1 KS |
614 | /* Skip to the ending quote. */ |
615 | end = skip_quote_char (PARSER_STREAM (parser), quote_char); | |
616 | ||
617 | /* Error if the input did not terminate properly. */ | |
618 | if (end == NULL) | |
619 | error (_("unmatched quote")); | |
620 | ||
621 | /* Skip over the ending quote and mark the length of the string. */ | |
622 | PARSER_STREAM (parser) = (char *) ++end; | |
623 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - 2 - start; | |
624 | } | |
625 | else | |
626 | { | |
d7561cbb | 627 | const char *p; |
40e084e1 KS |
628 | |
629 | /* Otherwise, only identifier characters are permitted. | |
630 | Spaces are the exception. In general, we keep spaces, | |
631 | but only if the next characters in the input do not resolve | |
632 | to one of the keywords. | |
633 | ||
634 | This allows users to forgo quoting CV-qualifiers, template arguments, | |
635 | and similar common language constructs. */ | |
636 | ||
637 | while (1) | |
638 | { | |
639 | if (isspace (*PARSER_STREAM (parser))) | |
640 | { | |
d7561cbb | 641 | p = skip_spaces_const (PARSER_STREAM (parser)); |
7c09e5a0 DE |
642 | /* When we get here we know we've found something followed by |
643 | a space (we skip over parens and templates below). | |
644 | So if we find a keyword now, we know it is a keyword and not, | |
645 | say, a function name. */ | |
40e084e1 KS |
646 | if (linespec_lexer_lex_keyword (p) != NULL) |
647 | { | |
648 | LS_TOKEN_STOKEN (token).ptr = start; | |
649 | LS_TOKEN_STOKEN (token).length | |
650 | = PARSER_STREAM (parser) - start; | |
651 | return token; | |
652 | } | |
653 | ||
654 | /* Advance past the whitespace. */ | |
655 | PARSER_STREAM (parser) = p; | |
656 | } | |
657 | ||
658 | /* If the next character is EOI or (single) ':', the | |
659 | string is complete; return the token. */ | |
660 | if (*PARSER_STREAM (parser) == 0) | |
661 | { | |
662 | LS_TOKEN_STOKEN (token).ptr = start; | |
663 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
664 | return token; | |
665 | } | |
666 | else if (PARSER_STREAM (parser)[0] == ':') | |
667 | { | |
668 | /* Do not tokenize the C++ scope operator. */ | |
669 | if (PARSER_STREAM (parser)[1] == ':') | |
670 | ++(PARSER_STREAM (parser)); | |
671 | ||
672 | /* Do not tokenify if the input length so far is one | |
673 | (i.e, a single-letter drive name) and the next character | |
674 | is a directory separator. This allows Windows-style | |
675 | paths to be recognized as filenames without quoting it. */ | |
676 | else if ((PARSER_STREAM (parser) - start) != 1 | |
677 | || !IS_DIR_SEPARATOR (PARSER_STREAM (parser)[1])) | |
678 | { | |
679 | LS_TOKEN_STOKEN (token).ptr = start; | |
680 | LS_TOKEN_STOKEN (token).length | |
681 | = PARSER_STREAM (parser) - start; | |
682 | return token; | |
683 | } | |
684 | } | |
685 | /* Special case: permit quote-enclosed linespecs. */ | |
686 | else if (parser->is_quote_enclosed | |
687 | && strchr (linespec_quote_characters, | |
688 | *PARSER_STREAM (parser)) | |
689 | && is_closing_quote_enclosed (PARSER_STREAM (parser))) | |
690 | { | |
691 | LS_TOKEN_STOKEN (token).ptr = start; | |
692 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
693 | return token; | |
694 | } | |
695 | /* Because commas may terminate a linespec and appear in | |
696 | the middle of valid string input, special cases for | |
697 | '<' and '(' are necessary. */ | |
698 | else if (*PARSER_STREAM (parser) == '<' | |
699 | || *PARSER_STREAM (parser) == '(') | |
700 | { | |
d7561cbb | 701 | const char *p; |
40e084e1 KS |
702 | |
703 | p = find_parameter_list_end (PARSER_STREAM (parser)); | |
704 | if (p != NULL) | |
705 | { | |
706 | PARSER_STREAM (parser) = p; | |
707 | continue; | |
708 | } | |
709 | } | |
710 | /* Commas are terminators, but not if they are part of an | |
711 | operator name. */ | |
712 | else if (*PARSER_STREAM (parser) == ',') | |
713 | { | |
714 | if ((PARSER_STATE (parser)->language->la_language | |
715 | == language_cplus) | |
716 | && (PARSER_STREAM (parser) - start) > 8 | |
717 | /* strlen ("operator") */) | |
718 | { | |
719 | char *p = strstr (start, "operator"); | |
720 | ||
721 | if (p != NULL && is_operator_name (p)) | |
722 | { | |
723 | /* This is an operator name. Keep going. */ | |
724 | ++(PARSER_STREAM (parser)); | |
725 | continue; | |
726 | } | |
727 | } | |
728 | ||
729 | /* Comma terminates the string. */ | |
730 | LS_TOKEN_STOKEN (token).ptr = start; | |
731 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
732 | return token; | |
733 | } | |
734 | ||
735 | /* Advance the stream. */ | |
736 | ++(PARSER_STREAM (parser)); | |
737 | } | |
738 | } | |
739 | ||
740 | return token; | |
741 | } | |
742 | ||
743 | /* Lex a single linespec token from PARSER. */ | |
744 | ||
745 | static linespec_token | |
746 | linespec_lexer_lex_one (linespec_parser *parser) | |
747 | { | |
748 | const char *keyword; | |
749 | ||
750 | if (parser->lexer.current.type == LSTOKEN_CONSUMED) | |
751 | { | |
752 | /* Skip any whitespace. */ | |
d7561cbb | 753 | PARSER_STREAM (parser) = skip_spaces_const (PARSER_STREAM (parser)); |
40e084e1 | 754 | |
7c09e5a0 | 755 | /* Check for a keyword, they end the linespec. */ |
0578b14e | 756 | keyword = linespec_lexer_lex_keyword (PARSER_STREAM (parser)); |
40e084e1 KS |
757 | if (keyword != NULL) |
758 | { | |
759 | parser->lexer.current.type = LSTOKEN_KEYWORD; | |
760 | LS_TOKEN_KEYWORD (parser->lexer.current) = keyword; | |
0578b14e KS |
761 | /* We do not advance the stream here intentionally: |
762 | we would like lexing to stop when a keyword is seen. | |
763 | ||
764 | PARSER_STREAM (parser) += strlen (keyword); */ | |
765 | ||
40e084e1 KS |
766 | return parser->lexer.current; |
767 | } | |
768 | ||
769 | /* Handle other tokens. */ | |
770 | switch (*PARSER_STREAM (parser)) | |
771 | { | |
772 | case 0: | |
773 | parser->lexer.current.type = LSTOKEN_EOI; | |
774 | break; | |
775 | ||
776 | case '+': case '-': | |
777 | case '0': case '1': case '2': case '3': case '4': | |
778 | case '5': case '6': case '7': case '8': case '9': | |
d7cbec71 HZ |
779 | if (!linespec_lexer_lex_number (parser, &(parser->lexer.current))) |
780 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
40e084e1 KS |
781 | break; |
782 | ||
783 | case ':': | |
784 | /* If we have a scope operator, lex the input as a string. | |
785 | Otherwise, return LSTOKEN_COLON. */ | |
786 | if (PARSER_STREAM (parser)[1] == ':') | |
787 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
788 | else | |
789 | { | |
790 | parser->lexer.current.type = LSTOKEN_COLON; | |
791 | ++(PARSER_STREAM (parser)); | |
792 | } | |
793 | break; | |
794 | ||
795 | case '\'': case '\"': | |
796 | /* Special case: permit quote-enclosed linespecs. */ | |
797 | if (parser->is_quote_enclosed | |
798 | && is_closing_quote_enclosed (PARSER_STREAM (parser))) | |
799 | { | |
800 | ++(PARSER_STREAM (parser)); | |
801 | parser->lexer.current.type = LSTOKEN_EOI; | |
802 | } | |
803 | else | |
804 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
805 | break; | |
806 | ||
807 | case ',': | |
808 | parser->lexer.current.type = LSTOKEN_COMMA; | |
809 | LS_TOKEN_STOKEN (parser->lexer.current).ptr | |
810 | = PARSER_STREAM (parser); | |
811 | LS_TOKEN_STOKEN (parser->lexer.current).length = 1; | |
812 | ++(PARSER_STREAM (parser)); | |
813 | break; | |
814 | ||
815 | default: | |
816 | /* If the input is not a number, it must be a string. | |
817 | [Keywords were already considered above.] */ | |
818 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
819 | break; | |
820 | } | |
821 | } | |
822 | ||
823 | return parser->lexer.current; | |
824 | } | |
825 | ||
826 | /* Consume the current token and return the next token in PARSER's | |
827 | input stream. */ | |
828 | ||
829 | static linespec_token | |
830 | linespec_lexer_consume_token (linespec_parser *parser) | |
831 | { | |
832 | parser->lexer.current.type = LSTOKEN_CONSUMED; | |
833 | return linespec_lexer_lex_one (parser); | |
834 | } | |
835 | ||
836 | /* Return the next token without consuming the current token. */ | |
837 | ||
838 | static linespec_token | |
839 | linespec_lexer_peek_token (linespec_parser *parser) | |
840 | { | |
841 | linespec_token next; | |
d7561cbb | 842 | const char *saved_stream = PARSER_STREAM (parser); |
40e084e1 KS |
843 | linespec_token saved_token = parser->lexer.current; |
844 | ||
845 | next = linespec_lexer_consume_token (parser); | |
846 | PARSER_STREAM (parser) = saved_stream; | |
847 | parser->lexer.current = saved_token; | |
848 | return next; | |
849 | } | |
850 | ||
851 | /* Helper functions. */ | |
852 | ||
853 | /* Add SAL to SALS. */ | |
854 | ||
855 | static void | |
856 | add_sal_to_sals_basic (struct symtabs_and_lines *sals, | |
857 | struct symtab_and_line *sal) | |
858 | { | |
859 | ++sals->nelts; | |
860 | sals->sals = xrealloc (sals->sals, sals->nelts * sizeof (sals->sals[0])); | |
861 | sals->sals[sals->nelts - 1] = *sal; | |
862 | } | |
863 | ||
864 | /* Add SAL to SALS, and also update SELF->CANONICAL_NAMES to reflect | |
865 | the new sal, if needed. If not NULL, SYMNAME is the name of the | |
66f1999b KS |
866 | symbol to use when constructing the new canonical name. |
867 | ||
868 | If LITERAL_CANONICAL is non-zero, SYMNAME will be used as the | |
869 | canonical name for the SAL. */ | |
40e084e1 KS |
870 | |
871 | static void | |
872 | add_sal_to_sals (struct linespec_state *self, | |
873 | struct symtabs_and_lines *sals, | |
874 | struct symtab_and_line *sal, | |
66f1999b | 875 | const char *symname, int literal_canonical) |
40e084e1 KS |
876 | { |
877 | add_sal_to_sals_basic (sals, sal); | |
878 | ||
879 | if (self->canonical) | |
880 | { | |
33f448b1 | 881 | struct linespec_canonical_name *canonical; |
40e084e1 KS |
882 | |
883 | self->canonical_names = xrealloc (self->canonical_names, | |
33f448b1 JK |
884 | (sals->nelts |
885 | * sizeof (*self->canonical_names))); | |
886 | canonical = &self->canonical_names[sals->nelts - 1]; | |
4e04028d | 887 | if (!literal_canonical && sal->symtab) |
40e084e1 | 888 | { |
05cba821 | 889 | const char *fullname = symtab_to_fullname (sal->symtab); |
40e084e1 KS |
890 | |
891 | /* Note that the filter doesn't have to be a valid linespec | |
892 | input. We only apply the ":LINE" treatment to Ada for | |
893 | the time being. */ | |
894 | if (symname != NULL && sal->line != 0 | |
895 | && self->language->la_language == language_ada) | |
33f448b1 | 896 | canonical->suffix = xstrprintf ("%s:%d", symname, sal->line); |
40e084e1 | 897 | else if (symname != NULL) |
33f448b1 | 898 | canonical->suffix = xstrdup (symname); |
40e084e1 | 899 | else |
33f448b1 JK |
900 | canonical->suffix = xstrprintf ("%d", sal->line); |
901 | canonical->symtab = sal->symtab; | |
902 | } | |
903 | else | |
904 | { | |
905 | if (symname != NULL) | |
906 | canonical->suffix = xstrdup (symname); | |
907 | else | |
e617b069 | 908 | canonical->suffix = xstrdup ("<unknown>"); |
33f448b1 | 909 | canonical->symtab = NULL; |
40e084e1 | 910 | } |
40e084e1 KS |
911 | } |
912 | } | |
913 | ||
914 | /* A hash function for address_entry. */ | |
915 | ||
916 | static hashval_t | |
917 | hash_address_entry (const void *p) | |
918 | { | |
919 | const struct address_entry *aep = p; | |
920 | hashval_t hash; | |
921 | ||
922 | hash = iterative_hash_object (aep->pspace, 0); | |
923 | return iterative_hash_object (aep->addr, hash); | |
924 | } | |
925 | ||
926 | /* An equality function for address_entry. */ | |
927 | ||
928 | static int | |
929 | eq_address_entry (const void *a, const void *b) | |
930 | { | |
931 | const struct address_entry *aea = a; | |
932 | const struct address_entry *aeb = b; | |
933 | ||
934 | return aea->pspace == aeb->pspace && aea->addr == aeb->addr; | |
935 | } | |
936 | ||
937 | /* Check whether the address, represented by PSPACE and ADDR, is | |
938 | already in the set. If so, return 0. Otherwise, add it and return | |
939 | 1. */ | |
940 | ||
941 | static int | |
942 | maybe_add_address (htab_t set, struct program_space *pspace, CORE_ADDR addr) | |
943 | { | |
944 | struct address_entry e, *p; | |
945 | void **slot; | |
946 | ||
947 | e.pspace = pspace; | |
948 | e.addr = addr; | |
949 | slot = htab_find_slot (set, &e, INSERT); | |
950 | if (*slot) | |
951 | return 0; | |
952 | ||
953 | p = XNEW (struct address_entry); | |
954 | memcpy (p, &e, sizeof (struct address_entry)); | |
955 | *slot = p; | |
956 | ||
957 | return 1; | |
958 | } | |
959 | ||
960 | /* A callback function and the additional data to call it with. */ | |
961 | ||
962 | struct symbol_and_data_callback | |
963 | { | |
964 | /* The callback to use. */ | |
965 | symbol_found_callback_ftype *callback; | |
966 | ||
967 | /* Data to be passed to the callback. */ | |
968 | void *data; | |
969 | }; | |
970 | ||
971 | /* A helper for iterate_over_all_matching_symtabs that is used to | |
972 | restrict calls to another callback to symbols representing inline | |
973 | symbols only. */ | |
974 | ||
975 | static int | |
976 | iterate_inline_only (struct symbol *sym, void *d) | |
977 | { | |
978 | if (SYMBOL_INLINED (sym)) | |
979 | { | |
980 | struct symbol_and_data_callback *cad = d; | |
981 | ||
982 | return cad->callback (sym, cad->data); | |
983 | } | |
984 | return 1; /* Continue iterating. */ | |
985 | } | |
986 | ||
987 | /* Some data for the expand_symtabs_matching callback. */ | |
988 | ||
989 | struct symbol_matcher_data | |
990 | { | |
991 | /* The lookup name against which symbol name should be compared. */ | |
992 | const char *lookup_name; | |
993 | ||
994 | /* The routine to be used for comparison. */ | |
995 | symbol_name_cmp_ftype symbol_name_cmp; | |
996 | }; | |
997 | ||
998 | /* A helper for iterate_over_all_matching_symtabs that is passed as a | |
999 | callback to the expand_symtabs_matching method. */ | |
1000 | ||
1001 | static int | |
1002 | iterate_name_matcher (const char *name, void *d) | |
1003 | { | |
1004 | const struct symbol_matcher_data *data = d; | |
1005 | ||
642a8d80 | 1006 | if (data->symbol_name_cmp (name, data->lookup_name) == 0) |
40e084e1 KS |
1007 | return 1; /* Expand this symbol's symbol table. */ |
1008 | return 0; /* Skip this symbol. */ | |
1009 | } | |
1010 | ||
1011 | /* A helper that walks over all matching symtabs in all objfiles and | |
1012 | calls CALLBACK for each symbol matching NAME. If SEARCH_PSPACE is | |
1013 | not NULL, then the search is restricted to just that program | |
1014 | space. If INCLUDE_INLINE is nonzero then symbols representing | |
1015 | inlined instances of functions will be included in the result. */ | |
1016 | ||
1017 | static void | |
1018 | iterate_over_all_matching_symtabs (struct linespec_state *state, | |
1019 | const char *name, | |
1020 | const domain_enum domain, | |
1021 | symbol_found_callback_ftype *callback, | |
1022 | void *data, | |
1023 | struct program_space *search_pspace, | |
1024 | int include_inline) | |
1025 | { | |
1026 | struct objfile *objfile; | |
1027 | struct program_space *pspace; | |
1028 | struct symbol_matcher_data matcher_data; | |
1029 | ||
1030 | matcher_data.lookup_name = name; | |
1031 | matcher_data.symbol_name_cmp = | |
1032 | state->language->la_get_symbol_name_cmp != NULL | |
1033 | ? state->language->la_get_symbol_name_cmp (name) | |
1034 | : strcmp_iw; | |
1035 | ||
1036 | ALL_PSPACES (pspace) | |
1037 | { | |
1038 | if (search_pspace != NULL && search_pspace != pspace) | |
1039 | continue; | |
1040 | if (pspace->executing_startup) | |
f8eba3c6 TT |
1041 | continue; |
1042 | ||
1043 | set_current_program_space (pspace); | |
50641945 | 1044 | |
f8eba3c6 TT |
1045 | ALL_OBJFILES (objfile) |
1046 | { | |
43f3e411 | 1047 | struct compunit_symtab *cu; |
f8eba3c6 TT |
1048 | |
1049 | if (objfile->sf) | |
1050 | objfile->sf->qf->expand_symtabs_matching (objfile, NULL, | |
1051 | iterate_name_matcher, | |
276d885b | 1052 | NULL, ALL_DOMAIN, |
74ccd7f5 | 1053 | &matcher_data); |
f8eba3c6 | 1054 | |
43f3e411 | 1055 | ALL_OBJFILE_COMPUNITS (objfile, cu) |
f8eba3c6 | 1056 | { |
43f3e411 DE |
1057 | struct symtab *symtab = COMPUNIT_FILETABS (cu); |
1058 | ||
4eeaa230 | 1059 | iterate_over_file_blocks (symtab, name, domain, callback, data); |
481860b3 | 1060 | |
d790cf0a DE |
1061 | if (include_inline) |
1062 | { | |
1063 | struct symbol_and_data_callback cad = { callback, data }; | |
4eeaa230 | 1064 | struct block *block; |
d790cf0a | 1065 | int i; |
481860b3 | 1066 | |
d790cf0a | 1067 | for (i = FIRST_LOCAL_BLOCK; |
439247b6 DE |
1068 | i < BLOCKVECTOR_NBLOCKS (SYMTAB_BLOCKVECTOR (symtab)); |
1069 | i++) | |
d790cf0a | 1070 | { |
439247b6 | 1071 | block = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab), i); |
4ae24af0 JB |
1072 | state->language->la_iterate_over_symbols |
1073 | (block, name, domain, iterate_inline_only, &cad); | |
481860b3 | 1074 | } |
f8eba3c6 TT |
1075 | } |
1076 | } | |
1077 | } | |
1078 | } | |
50641945 FN |
1079 | } |
1080 | ||
4eeaa230 DE |
1081 | /* Returns the block to be used for symbol searches from |
1082 | the current location. */ | |
e8eb7bc5 | 1083 | |
3977b71f | 1084 | static const struct block * |
e482a1a7 | 1085 | get_current_search_block (void) |
e8eb7bc5 | 1086 | { |
3977b71f | 1087 | const struct block *block; |
4eeaa230 | 1088 | enum language save_language; |
e8eb7bc5 | 1089 | |
4eeaa230 DE |
1090 | /* get_selected_block can change the current language when there is |
1091 | no selected frame yet. */ | |
1092 | save_language = current_language->la_language; | |
1093 | block = get_selected_block (0); | |
1094 | set_language (save_language); | |
e8eb7bc5 KS |
1095 | |
1096 | return block; | |
1097 | } | |
1098 | ||
4eeaa230 DE |
1099 | /* Iterate over static and global blocks. */ |
1100 | ||
1101 | static void | |
1102 | iterate_over_file_blocks (struct symtab *symtab, | |
1103 | const char *name, domain_enum domain, | |
1104 | symbol_found_callback_ftype *callback, void *data) | |
1105 | { | |
1106 | struct block *block; | |
1107 | ||
439247b6 | 1108 | for (block = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab), STATIC_BLOCK); |
4eeaa230 DE |
1109 | block != NULL; |
1110 | block = BLOCK_SUPERBLOCK (block)) | |
1111 | LA_ITERATE_OVER_SYMBOLS (block, name, domain, callback, data); | |
1112 | } | |
1113 | ||
f8eba3c6 | 1114 | /* A helper for find_method. This finds all methods in type T which |
40e084e1 | 1115 | match NAME. It adds matching symbol names to RESULT_NAMES, and |
f8eba3c6 | 1116 | adds T's direct superclasses to SUPERCLASSES. */ |
50641945 | 1117 | |
f8eba3c6 TT |
1118 | static void |
1119 | find_methods (struct type *t, const char *name, | |
1120 | VEC (const_char_ptr) **result_names, | |
1121 | VEC (typep) **superclasses) | |
50641945 | 1122 | { |
50641945 | 1123 | int ibase; |
0d5cff50 | 1124 | const char *class_name = type_name_no_tag (t); |
c00f8484 | 1125 | |
50641945 FN |
1126 | /* Ignore this class if it doesn't have a name. This is ugly, but |
1127 | unless we figure out how to get the physname without the name of | |
1128 | the class, then the loop can't do any good. */ | |
f8eba3c6 | 1129 | if (class_name) |
50641945 FN |
1130 | { |
1131 | int method_counter; | |
1132 | ||
f168693b | 1133 | t = check_typedef (t); |
50641945 FN |
1134 | |
1135 | /* Loop over each method name. At this level, all overloads of a name | |
1136 | are counted as a single name. There is an inner loop which loops over | |
1137 | each overload. */ | |
1138 | ||
1139 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
1140 | method_counter >= 0; | |
1141 | --method_counter) | |
1142 | { | |
0d5cff50 | 1143 | const char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
50641945 FN |
1144 | char dem_opname[64]; |
1145 | ||
61012eef GB |
1146 | if (startswith (method_name, "__") || |
1147 | startswith (method_name, "op") || | |
1148 | startswith (method_name, "type")) | |
50641945 FN |
1149 | { |
1150 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
1151 | method_name = dem_opname; | |
1152 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
1153 | method_name = dem_opname; | |
1154 | } | |
1155 | ||
f8eba3c6 TT |
1156 | if (strcmp_iw (method_name, name) == 0) |
1157 | { | |
1158 | int field_counter; | |
aee8d8ba | 1159 | |
f8eba3c6 TT |
1160 | for (field_counter = (TYPE_FN_FIELDLIST_LENGTH (t, method_counter) |
1161 | - 1); | |
1162 | field_counter >= 0; | |
1163 | --field_counter) | |
1164 | { | |
1165 | struct fn_field *f; | |
1166 | const char *phys_name; | |
1167 | ||
1168 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
1169 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
1170 | continue; | |
1171 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
1172 | VEC_safe_push (const_char_ptr, *result_names, phys_name); | |
1173 | } | |
1174 | } | |
aee8d8ba DC |
1175 | } |
1176 | } | |
1177 | ||
f8eba3c6 TT |
1178 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) |
1179 | VEC_safe_push (typep, *superclasses, TYPE_BASECLASS (t, ibase)); | |
50641945 FN |
1180 | } |
1181 | ||
50641945 FN |
1182 | /* Find an instance of the character C in the string S that is outside |
1183 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
1184 | strings. Also, ignore the char within a template name, like a ',' |
1185 | within foo<int, int>. */ | |
1186 | ||
40e084e1 KS |
1187 | static const char * |
1188 | find_toplevel_char (const char *s, char c) | |
50641945 FN |
1189 | { |
1190 | int quoted = 0; /* zero if we're not in quotes; | |
1191 | '"' if we're in a double-quoted string; | |
1192 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 1193 | int depth = 0; /* Number of unclosed parens we've seen. */ |
40e084e1 | 1194 | const char *scan; |
50641945 FN |
1195 | |
1196 | for (scan = s; *scan; scan++) | |
1197 | { | |
1198 | if (quoted) | |
1199 | { | |
1200 | if (*scan == quoted) | |
1201 | quoted = 0; | |
1202 | else if (*scan == '\\' && *(scan + 1)) | |
1203 | scan++; | |
1204 | } | |
1205 | else if (*scan == c && ! quoted && depth == 0) | |
1206 | return scan; | |
1207 | else if (*scan == '"' || *scan == '\'') | |
1208 | quoted = *scan; | |
8120c9d5 | 1209 | else if (*scan == '(' || *scan == '<') |
50641945 | 1210 | depth++; |
8120c9d5 | 1211 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
1212 | depth--; |
1213 | } | |
1214 | ||
1215 | return 0; | |
1216 | } | |
1217 | ||
40e084e1 KS |
1218 | /* The string equivalent of find_toplevel_char. Returns a pointer |
1219 | to the location of NEEDLE in HAYSTACK, ignoring any occurrences | |
1220 | inside "()" and "<>". Returns NULL if NEEDLE was not found. */ | |
889f28e2 | 1221 | |
40e084e1 KS |
1222 | static const char * |
1223 | find_toplevel_string (const char *haystack, const char *needle) | |
889f28e2 | 1224 | { |
40e084e1 KS |
1225 | const char *s = haystack; |
1226 | ||
1227 | do | |
1228 | { | |
1229 | s = find_toplevel_char (s, *needle); | |
1230 | ||
1231 | if (s != NULL) | |
1232 | { | |
1233 | /* Found first char in HAYSTACK; check rest of string. */ | |
61012eef | 1234 | if (startswith (s, needle)) |
40e084e1 KS |
1235 | return s; |
1236 | ||
1237 | /* Didn't find it; loop over HAYSTACK, looking for the next | |
1238 | instance of the first character of NEEDLE. */ | |
1239 | ++s; | |
1240 | } | |
1241 | } | |
1242 | while (s != NULL && *s != '\0'); | |
1243 | ||
1244 | /* NEEDLE was not found in HAYSTACK. */ | |
1245 | return NULL; | |
889f28e2 AF |
1246 | } |
1247 | ||
33f448b1 JK |
1248 | /* Convert CANONICAL to its string representation using |
1249 | symtab_to_fullname for SYMTAB. The caller must xfree the result. */ | |
1250 | ||
1251 | static char * | |
1252 | canonical_to_fullform (const struct linespec_canonical_name *canonical) | |
1253 | { | |
1254 | if (canonical->symtab == NULL) | |
1255 | return xstrdup (canonical->suffix); | |
1256 | else | |
1257 | return xstrprintf ("%s:%s", symtab_to_fullname (canonical->symtab), | |
1258 | canonical->suffix); | |
1259 | } | |
1260 | ||
f8eba3c6 TT |
1261 | /* Given FILTERS, a list of canonical names, filter the sals in RESULT |
1262 | and store the result in SELF->CANONICAL. */ | |
50641945 | 1263 | |
f8eba3c6 TT |
1264 | static void |
1265 | filter_results (struct linespec_state *self, | |
1266 | struct symtabs_and_lines *result, | |
1267 | VEC (const_char_ptr) *filters) | |
1268 | { | |
1269 | int i; | |
1270 | const char *name; | |
1271 | ||
1272 | for (i = 0; VEC_iterate (const_char_ptr, filters, i, name); ++i) | |
1273 | { | |
1274 | struct linespec_sals lsal; | |
1275 | int j; | |
1276 | ||
1277 | memset (&lsal, 0, sizeof (lsal)); | |
1278 | ||
1279 | for (j = 0; j < result->nelts; ++j) | |
1280 | { | |
33f448b1 JK |
1281 | const struct linespec_canonical_name *canonical; |
1282 | char *fullform; | |
1283 | struct cleanup *cleanup; | |
1284 | ||
1285 | canonical = &self->canonical_names[j]; | |
1286 | fullform = canonical_to_fullform (canonical); | |
1287 | cleanup = make_cleanup (xfree, fullform); | |
1288 | ||
1289 | if (strcmp (name, fullform) == 0) | |
f8eba3c6 | 1290 | add_sal_to_sals_basic (&lsal.sals, &result->sals[j]); |
33f448b1 JK |
1291 | |
1292 | do_cleanups (cleanup); | |
f8eba3c6 TT |
1293 | } |
1294 | ||
1295 | if (lsal.sals.nelts > 0) | |
1296 | { | |
1297 | lsal.canonical = xstrdup (name); | |
1298 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
1299 | } | |
1300 | } | |
1301 | ||
1302 | self->canonical->pre_expanded = 0; | |
1303 | } | |
1304 | ||
1305 | /* Store RESULT into SELF->CANONICAL. */ | |
1306 | ||
1307 | static void | |
1308 | convert_results_to_lsals (struct linespec_state *self, | |
1309 | struct symtabs_and_lines *result) | |
50641945 | 1310 | { |
f8eba3c6 TT |
1311 | struct linespec_sals lsal; |
1312 | ||
1313 | lsal.canonical = NULL; | |
1314 | lsal.sals = *result; | |
1315 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
1316 | } | |
1317 | ||
33f448b1 JK |
1318 | /* A structure that contains two string representations of a struct |
1319 | linespec_canonical_name: | |
1320 | - one where the the symtab's fullname is used; | |
1321 | - one where the filename followed the "set filename-display" | |
1322 | setting. */ | |
1323 | ||
1324 | struct decode_line_2_item | |
1325 | { | |
1326 | /* The form using symtab_to_fullname. | |
1327 | It must be xfree'ed after use. */ | |
1328 | char *fullform; | |
1329 | ||
1330 | /* The form using symtab_to_filename_for_display. | |
1331 | It must be xfree'ed after use. */ | |
1332 | char *displayform; | |
1333 | ||
1334 | /* Field is initialized to zero and it is set to one if the user | |
1335 | requested breakpoint for this entry. */ | |
1336 | unsigned int selected : 1; | |
1337 | }; | |
1338 | ||
1339 | /* Helper for qsort to sort decode_line_2_item entries by DISPLAYFORM and | |
1340 | secondarily by FULLFORM. */ | |
1341 | ||
1342 | static int | |
1343 | decode_line_2_compare_items (const void *ap, const void *bp) | |
1344 | { | |
1345 | const struct decode_line_2_item *a = ap; | |
1346 | const struct decode_line_2_item *b = bp; | |
1347 | int retval; | |
1348 | ||
1349 | retval = strcmp (a->displayform, b->displayform); | |
1350 | if (retval != 0) | |
1351 | return retval; | |
1352 | ||
1353 | return strcmp (a->fullform, b->fullform); | |
1354 | } | |
1355 | ||
f8eba3c6 TT |
1356 | /* Handle multiple results in RESULT depending on SELECT_MODE. This |
1357 | will either return normally, throw an exception on multiple | |
1358 | results, or present a menu to the user. On return, the SALS vector | |
1359 | in SELF->CANONICAL is set up properly. */ | |
1360 | ||
1361 | static void | |
1362 | decode_line_2 (struct linespec_state *self, | |
1363 | struct symtabs_and_lines *result, | |
1364 | const char *select_mode) | |
1365 | { | |
f8eba3c6 | 1366 | char *args, *prompt; |
50641945 | 1367 | int i; |
50641945 | 1368 | struct cleanup *old_chain; |
33f448b1 | 1369 | VEC (const_char_ptr) *filters = NULL; |
f8eba3c6 | 1370 | struct get_number_or_range_state state; |
33f448b1 JK |
1371 | struct decode_line_2_item *items; |
1372 | int items_count; | |
50641945 | 1373 | |
f8eba3c6 TT |
1374 | gdb_assert (select_mode != multiple_symbols_all); |
1375 | gdb_assert (self->canonical != NULL); | |
33f448b1 JK |
1376 | gdb_assert (result->nelts >= 1); |
1377 | ||
1378 | old_chain = make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
50641945 | 1379 | |
33f448b1 JK |
1380 | /* Prepare ITEMS array. */ |
1381 | items_count = result->nelts; | |
1382 | items = xmalloc (sizeof (*items) * items_count); | |
1383 | make_cleanup (xfree, items); | |
1384 | for (i = 0; i < items_count; ++i) | |
50641945 | 1385 | { |
33f448b1 JK |
1386 | const struct linespec_canonical_name *canonical; |
1387 | struct decode_line_2_item *item; | |
1388 | ||
1389 | canonical = &self->canonical_names[i]; | |
1390 | gdb_assert (canonical->suffix != NULL); | |
1391 | item = &items[i]; | |
f8eba3c6 | 1392 | |
33f448b1 JK |
1393 | item->fullform = canonical_to_fullform (canonical); |
1394 | make_cleanup (xfree, item->fullform); | |
1395 | ||
1396 | if (canonical->symtab == NULL) | |
1397 | item->displayform = canonical->suffix; | |
1398 | else | |
f8eba3c6 | 1399 | { |
33f448b1 JK |
1400 | const char *fn_for_display; |
1401 | ||
1402 | fn_for_display = symtab_to_filename_for_display (canonical->symtab); | |
1403 | item->displayform = xstrprintf ("%s:%s", fn_for_display, | |
1404 | canonical->suffix); | |
1405 | make_cleanup (xfree, item->displayform); | |
f8eba3c6 TT |
1406 | } |
1407 | ||
33f448b1 | 1408 | item->selected = 0; |
50641945 FN |
1409 | } |
1410 | ||
33f448b1 JK |
1411 | /* Sort the list of method names. */ |
1412 | qsort (items, items_count, sizeof (*items), decode_line_2_compare_items); | |
1413 | ||
1414 | /* Remove entries with the same FULLFORM. */ | |
1415 | if (items_count >= 2) | |
1416 | { | |
1417 | struct decode_line_2_item *dst, *src; | |
1418 | ||
1419 | dst = items; | |
1420 | for (src = &items[1]; src < &items[items_count]; src++) | |
1421 | if (strcmp (src->fullform, dst->fullform) != 0) | |
1422 | *++dst = *src; | |
1423 | items_count = dst + 1 - items; | |
1424 | } | |
1425 | ||
1426 | if (select_mode == multiple_symbols_cancel && items_count > 1) | |
f8eba3c6 TT |
1427 | error (_("canceled because the command is ambiguous\n" |
1428 | "See set/show multiple-symbol.")); | |
1429 | ||
33f448b1 | 1430 | if (select_mode == multiple_symbols_all || items_count == 1) |
50641945 | 1431 | { |
f8eba3c6 TT |
1432 | do_cleanups (old_chain); |
1433 | convert_results_to_lsals (self, result); | |
1434 | return; | |
50641945 FN |
1435 | } |
1436 | ||
f8eba3c6 | 1437 | printf_unfiltered (_("[0] cancel\n[1] all\n")); |
33f448b1 JK |
1438 | for (i = 0; i < items_count; i++) |
1439 | printf_unfiltered ("[%d] %s\n", i + 2, items[i].displayform); | |
f8eba3c6 TT |
1440 | |
1441 | prompt = getenv ("PS2"); | |
1442 | if (prompt == NULL) | |
50641945 | 1443 | { |
f8eba3c6 | 1444 | prompt = "> "; |
50641945 | 1445 | } |
f8eba3c6 | 1446 | args = command_line_input (prompt, 0, "overload-choice"); |
50641945 FN |
1447 | |
1448 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 1449 | error_no_arg (_("one or more choice numbers")); |
50641945 | 1450 | |
f8eba3c6 TT |
1451 | init_number_or_range (&state, args); |
1452 | while (!state.finished) | |
50641945 FN |
1453 | { |
1454 | int num; | |
1455 | ||
f8eba3c6 | 1456 | num = get_number_or_range (&state); |
50641945 FN |
1457 | |
1458 | if (num == 0) | |
8a3fe4f8 | 1459 | error (_("canceled")); |
50641945 FN |
1460 | else if (num == 1) |
1461 | { | |
f8eba3c6 TT |
1462 | /* We intentionally make this result in a single breakpoint, |
1463 | contrary to what older versions of gdb did. The | |
1464 | rationale is that this lets a user get the | |
1465 | multiple_symbols_all behavior even with the 'ask' | |
1466 | setting; and he can get separate breakpoints by entering | |
1467 | "2-57" at the query. */ | |
1468 | do_cleanups (old_chain); | |
1469 | convert_results_to_lsals (self, result); | |
1470 | return; | |
50641945 FN |
1471 | } |
1472 | ||
f8eba3c6 | 1473 | num -= 2; |
33f448b1 | 1474 | if (num >= items_count) |
f8eba3c6 | 1475 | printf_unfiltered (_("No choice number %d.\n"), num); |
50641945 FN |
1476 | else |
1477 | { | |
33f448b1 | 1478 | struct decode_line_2_item *item = &items[num]; |
f8eba3c6 | 1479 | |
33f448b1 | 1480 | if (!item->selected) |
50641945 | 1481 | { |
33f448b1 JK |
1482 | VEC_safe_push (const_char_ptr, filters, item->fullform); |
1483 | item->selected = 1; | |
50641945 FN |
1484 | } |
1485 | else | |
1486 | { | |
3e43a32a | 1487 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
f6f99966 | 1488 | num + 2); |
50641945 FN |
1489 | } |
1490 | } | |
50641945 | 1491 | } |
f8eba3c6 TT |
1492 | |
1493 | filter_results (self, result, filters); | |
1494 | do_cleanups (old_chain); | |
50641945 | 1495 | } |
94af9270 | 1496 | |
40e084e1 | 1497 | \f |
3d50dd94 | 1498 | |
40e084e1 KS |
1499 | /* The parser of linespec itself. */ |
1500 | ||
1501 | /* Throw an appropriate error when SYMBOL is not found (optionally in | |
1502 | FILENAME). */ | |
1503 | ||
1504 | static void ATTRIBUTE_NORETURN | |
5d94e27b | 1505 | symbol_not_found_error (const char *symbol, const char *filename) |
3d50dd94 | 1506 | { |
40e084e1 KS |
1507 | if (symbol == NULL) |
1508 | symbol = ""; | |
1509 | ||
1510 | if (!have_full_symbols () | |
1511 | && !have_partial_symbols () | |
1512 | && !have_minimal_symbols ()) | |
1513 | throw_error (NOT_FOUND_ERROR, | |
1514 | _("No symbol table is loaded. Use the \"file\" command.")); | |
1515 | ||
1516 | /* If SYMBOL starts with '$', the user attempted to either lookup | |
1517 | a function/variable in his code starting with '$' or an internal | |
1518 | variable of that name. Since we do not know which, be concise and | |
1519 | explain both possibilities. */ | |
1520 | if (*symbol == '$') | |
1521 | { | |
1522 | if (filename) | |
1523 | throw_error (NOT_FOUND_ERROR, | |
1524 | _("Undefined convenience variable or function \"%s\" " | |
1525 | "not defined in \"%s\"."), symbol, filename); | |
1526 | else | |
1527 | throw_error (NOT_FOUND_ERROR, | |
1528 | _("Undefined convenience variable or function \"%s\" " | |
1529 | "not defined."), symbol); | |
1530 | } | |
1531 | else | |
1532 | { | |
1533 | if (filename) | |
1534 | throw_error (NOT_FOUND_ERROR, | |
1535 | _("Function \"%s\" not defined in \"%s\"."), | |
1536 | symbol, filename); | |
1537 | else | |
1538 | throw_error (NOT_FOUND_ERROR, | |
1539 | _("Function \"%s\" not defined."), symbol); | |
1540 | } | |
3d50dd94 JK |
1541 | } |
1542 | ||
40e084e1 KS |
1543 | /* Throw an appropriate error when an unexpected token is encountered |
1544 | in the input. */ | |
94af9270 | 1545 | |
40e084e1 KS |
1546 | static void ATTRIBUTE_NORETURN |
1547 | unexpected_linespec_error (linespec_parser *parser) | |
94af9270 | 1548 | { |
40e084e1 KS |
1549 | linespec_token token; |
1550 | static const char * token_type_strings[] | |
1551 | = {"keyword", "colon", "string", "number", "comma", "end of input"}; | |
94af9270 | 1552 | |
40e084e1 KS |
1553 | /* Get the token that generated the error. */ |
1554 | token = linespec_lexer_lex_one (parser); | |
94af9270 | 1555 | |
40e084e1 KS |
1556 | /* Finally, throw the error. */ |
1557 | if (token.type == LSTOKEN_STRING || token.type == LSTOKEN_NUMBER | |
1558 | || token.type == LSTOKEN_KEYWORD) | |
94af9270 | 1559 | { |
40e084e1 KS |
1560 | char *string; |
1561 | struct cleanup *cleanup; | |
1562 | ||
1563 | string = copy_token_string (token); | |
1564 | cleanup = make_cleanup (xfree, string); | |
1565 | throw_error (GENERIC_ERROR, | |
1566 | _("malformed linespec error: unexpected %s, \"%s\""), | |
1567 | token_type_strings[token.type], string); | |
1568 | } | |
1569 | else | |
1570 | throw_error (GENERIC_ERROR, | |
1571 | _("malformed linespec error: unexpected %s"), | |
1572 | token_type_strings[token.type]); | |
1573 | } | |
1574 | ||
1575 | /* Parse and return a line offset in STRING. */ | |
1576 | ||
1577 | static struct line_offset | |
09cf2b22 | 1578 | linespec_parse_line_offset (const char *string) |
40e084e1 KS |
1579 | { |
1580 | struct line_offset line_offset = {0, LINE_OFFSET_NONE}; | |
1581 | ||
1582 | if (*string == '+') | |
1583 | { | |
1584 | line_offset.sign = LINE_OFFSET_PLUS; | |
1585 | ++string; | |
1586 | } | |
1587 | else if (*string == '-') | |
1588 | { | |
1589 | line_offset.sign = LINE_OFFSET_MINUS; | |
1590 | ++string; | |
1591 | } | |
1592 | ||
1593 | /* Right now, we only allow base 10 for offsets. */ | |
1594 | line_offset.offset = atoi (string); | |
1595 | return line_offset; | |
1596 | } | |
1597 | ||
1598 | /* Parse the basic_spec in PARSER's input. */ | |
1599 | ||
1600 | static void | |
1601 | linespec_parse_basic (linespec_parser *parser) | |
1602 | { | |
1603 | char *name; | |
1604 | linespec_token token; | |
1605 | VEC (symbolp) *symbols, *labels; | |
f60e2d5c | 1606 | VEC (bound_minimal_symbol_d) *minimal_symbols; |
40e084e1 KS |
1607 | struct cleanup *cleanup; |
1608 | ||
1609 | /* Get the next token. */ | |
1610 | token = linespec_lexer_lex_one (parser); | |
1611 | ||
1612 | /* If it is EOI or KEYWORD, issue an error. */ | |
1613 | if (token.type == LSTOKEN_KEYWORD || token.type == LSTOKEN_EOI) | |
1614 | unexpected_linespec_error (parser); | |
1615 | /* If it is a LSTOKEN_NUMBER, we have an offset. */ | |
1616 | else if (token.type == LSTOKEN_NUMBER) | |
1617 | { | |
1618 | /* Record the line offset and get the next token. */ | |
1619 | name = copy_token_string (token); | |
1620 | cleanup = make_cleanup (xfree, name); | |
1621 | PARSER_RESULT (parser)->line_offset = linespec_parse_line_offset (name); | |
1622 | do_cleanups (cleanup); | |
1623 | ||
1624 | /* Get the next token. */ | |
1625 | token = linespec_lexer_consume_token (parser); | |
1626 | ||
1627 | /* If the next token is a comma, stop parsing and return. */ | |
1628 | if (token.type == LSTOKEN_COMMA) | |
1629 | return; | |
1630 | ||
1631 | /* If the next token is anything but EOI or KEYWORD, issue | |
1632 | an error. */ | |
1633 | if (token.type != LSTOKEN_KEYWORD && token.type != LSTOKEN_EOI) | |
1634 | unexpected_linespec_error (parser); | |
1635 | } | |
1636 | ||
1637 | if (token.type == LSTOKEN_KEYWORD || token.type == LSTOKEN_EOI) | |
1638 | return; | |
1639 | ||
1640 | /* Next token must be LSTOKEN_STRING. */ | |
1641 | if (token.type != LSTOKEN_STRING) | |
1642 | unexpected_linespec_error (parser); | |
1643 | ||
1644 | /* The current token will contain the name of a function, method, | |
1645 | or label. */ | |
1646 | name = copy_token_string (token); | |
1647 | cleanup = make_cleanup (xfree, name); | |
1648 | ||
1649 | /* Try looking it up as a function/method. */ | |
1650 | find_linespec_symbols (PARSER_STATE (parser), | |
1651 | PARSER_RESULT (parser)->file_symtabs, name, | |
1652 | &symbols, &minimal_symbols); | |
1653 | ||
1654 | if (symbols != NULL || minimal_symbols != NULL) | |
1655 | { | |
1656 | PARSER_RESULT (parser)->function_symbols = symbols; | |
1657 | PARSER_RESULT (parser)->minimal_symbols = minimal_symbols; | |
1658 | PARSER_RESULT (parser)->function_name = name; | |
1659 | symbols = NULL; | |
1660 | discard_cleanups (cleanup); | |
1661 | } | |
1662 | else | |
1663 | { | |
1664 | /* NAME was not a function or a method. So it must be a label | |
b4013987 | 1665 | name or user specified variable like "break foo.c:$zippo". */ |
40e084e1 KS |
1666 | labels = find_label_symbols (PARSER_STATE (parser), NULL, |
1667 | &symbols, name); | |
1668 | if (labels != NULL) | |
94af9270 | 1669 | { |
40e084e1 KS |
1670 | PARSER_RESULT (parser)->labels.label_symbols = labels; |
1671 | PARSER_RESULT (parser)->labels.function_symbols = symbols; | |
1672 | PARSER_RESULT (parser)->label_name = name; | |
1673 | symbols = NULL; | |
1674 | discard_cleanups (cleanup); | |
1675 | } | |
b4013987 AA |
1676 | else if (token.type == LSTOKEN_STRING |
1677 | && *LS_TOKEN_STOKEN (token).ptr == '$') | |
1678 | { | |
1679 | /* User specified a convenience variable or history value. */ | |
1680 | PARSER_RESULT (parser)->line_offset | |
1681 | = linespec_parse_variable (PARSER_STATE (parser), name); | |
1682 | ||
1683 | if (PARSER_RESULT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN) | |
1684 | { | |
1685 | /* The user-specified variable was not valid. Do not | |
1686 | throw an error here. parse_linespec will do it for us. */ | |
1687 | PARSER_RESULT (parser)->function_name = name; | |
1688 | discard_cleanups (cleanup); | |
1689 | return; | |
1690 | } | |
c888a17d KS |
1691 | |
1692 | /* The convenience variable/history value parsed correctly. | |
1693 | NAME is no longer needed. */ | |
1694 | do_cleanups (cleanup); | |
b4013987 | 1695 | } |
40e084e1 KS |
1696 | else |
1697 | { | |
1698 | /* The name is also not a label. Abort parsing. Do not throw | |
1699 | an error here. parse_linespec will do it for us. */ | |
1700 | ||
1701 | /* Save a copy of the name we were trying to lookup. */ | |
1702 | PARSER_RESULT (parser)->function_name = name; | |
1703 | discard_cleanups (cleanup); | |
1704 | return; | |
1705 | } | |
1706 | } | |
1707 | ||
1708 | /* Get the next token. */ | |
1709 | token = linespec_lexer_consume_token (parser); | |
1710 | ||
1711 | if (token.type == LSTOKEN_COLON) | |
1712 | { | |
1713 | /* User specified a label or a lineno. */ | |
1714 | token = linespec_lexer_consume_token (parser); | |
1715 | ||
1716 | if (token.type == LSTOKEN_NUMBER) | |
1717 | { | |
1718 | /* User specified an offset. Record the line offset and | |
1719 | get the next token. */ | |
1720 | name = copy_token_string (token); | |
1721 | cleanup = make_cleanup (xfree, name); | |
1722 | PARSER_RESULT (parser)->line_offset | |
1723 | = linespec_parse_line_offset (name); | |
1724 | do_cleanups (cleanup); | |
1725 | ||
1726 | /* Ge the next token. */ | |
1727 | token = linespec_lexer_consume_token (parser); | |
1728 | } | |
1729 | else if (token.type == LSTOKEN_STRING) | |
1730 | { | |
1731 | /* Grab a copy of the label's name and look it up. */ | |
1732 | name = copy_token_string (token); | |
1733 | cleanup = make_cleanup (xfree, name); | |
1734 | labels = find_label_symbols (PARSER_STATE (parser), | |
1735 | PARSER_RESULT (parser)->function_symbols, | |
1736 | &symbols, name); | |
1737 | ||
1738 | if (labels != NULL) | |
94af9270 | 1739 | { |
40e084e1 KS |
1740 | PARSER_RESULT (parser)->labels.label_symbols = labels; |
1741 | PARSER_RESULT (parser)->labels.function_symbols = symbols; | |
1742 | PARSER_RESULT (parser)->label_name = name; | |
1743 | symbols = NULL; | |
1744 | discard_cleanups (cleanup); | |
1745 | } | |
1746 | else | |
1747 | { | |
1748 | /* We don't know what it was, but it isn't a label. */ | |
1749 | throw_error (NOT_FOUND_ERROR, | |
1750 | _("No label \"%s\" defined in function \"%s\"."), | |
1751 | name, PARSER_RESULT (parser)->function_name); | |
1752 | } | |
1753 | ||
1754 | /* Check for a line offset. */ | |
1755 | token = linespec_lexer_consume_token (parser); | |
1756 | if (token.type == LSTOKEN_COLON) | |
1757 | { | |
1758 | /* Get the next token. */ | |
1759 | token = linespec_lexer_consume_token (parser); | |
1760 | ||
1761 | /* It must be a line offset. */ | |
1762 | if (token.type != LSTOKEN_NUMBER) | |
1763 | unexpected_linespec_error (parser); | |
1764 | ||
1765 | /* Record the lione offset and get the next token. */ | |
1766 | name = copy_token_string (token); | |
1767 | cleanup = make_cleanup (xfree, name); | |
1768 | ||
1769 | PARSER_RESULT (parser)->line_offset | |
1770 | = linespec_parse_line_offset (name); | |
1771 | do_cleanups (cleanup); | |
1772 | ||
1773 | /* Get the next token. */ | |
1774 | token = linespec_lexer_consume_token (parser); | |
94af9270 KS |
1775 | } |
1776 | } | |
40e084e1 KS |
1777 | else |
1778 | { | |
1779 | /* Trailing ':' in the input. Issue an error. */ | |
1780 | unexpected_linespec_error (parser); | |
1781 | } | |
94af9270 | 1782 | } |
40e084e1 | 1783 | } |
94af9270 | 1784 | |
40e084e1 KS |
1785 | /* Canonicalize the linespec contained in LS. The result is saved into |
1786 | STATE->canonical. */ | |
1787 | ||
1788 | static void | |
f00aae0f | 1789 | canonicalize_linespec (struct linespec_state *state, const linespec_p ls) |
40e084e1 | 1790 | { |
f00aae0f | 1791 | char *tmp; |
a06efdd6 KS |
1792 | struct ui_file *buf; |
1793 | int need_colon = 0; | |
1794 | struct cleanup *cleanup; | |
f00aae0f | 1795 | |
40e084e1 KS |
1796 | /* If canonicalization was not requested, no need to do anything. */ |
1797 | if (!state->canonical) | |
1798 | return; | |
1799 | ||
a06efdd6 KS |
1800 | buf = mem_fileopen (); |
1801 | cleanup = make_cleanup_ui_file_delete (buf); | |
1802 | ||
1803 | if (ls->source_filename) | |
f00aae0f | 1804 | { |
a06efdd6 KS |
1805 | fputs_unfiltered (ls->source_filename, buf); |
1806 | need_colon = 1; | |
f00aae0f | 1807 | } |
f00aae0f | 1808 | |
a06efdd6 KS |
1809 | if (ls->function_name) |
1810 | { | |
1811 | if (need_colon) | |
1812 | fputc_unfiltered (':', buf); | |
1813 | fputs_unfiltered (ls->function_name, buf); | |
1814 | need_colon = 1; | |
1815 | } | |
40e084e1 | 1816 | |
a06efdd6 KS |
1817 | if (ls->label_name) |
1818 | { | |
1819 | if (need_colon) | |
1820 | fputc_unfiltered (':', buf); | |
40e084e1 | 1821 | |
a06efdd6 | 1822 | if (ls->function_name == NULL) |
40e084e1 | 1823 | { |
a06efdd6 KS |
1824 | struct symbol *s; |
1825 | ||
1826 | /* No function was specified, so add the symbol name. */ | |
1827 | gdb_assert (ls->labels.function_symbols != NULL | |
1828 | && (VEC_length (symbolp, ls->labels.function_symbols) | |
1829 | == 1)); | |
1830 | s = VEC_index (symbolp, ls->labels.function_symbols, 0); | |
1831 | fputs_unfiltered (SYMBOL_NATURAL_NAME (s), buf); | |
1832 | fputc_unfiltered (':', buf); | |
40e084e1 KS |
1833 | } |
1834 | ||
a06efdd6 KS |
1835 | fputs_unfiltered (ls->label_name, buf); |
1836 | need_colon = 1; | |
1837 | state->canonical->special_display = 1; | |
1838 | } | |
40e084e1 | 1839 | |
a06efdd6 KS |
1840 | if (ls->line_offset.sign != LINE_OFFSET_UNKNOWN) |
1841 | { | |
1842 | if (need_colon) | |
1843 | fputc_unfiltered (':', buf); | |
1844 | fprintf_filtered (buf, "%s%d", | |
1845 | (ls->line_offset.sign == LINE_OFFSET_NONE ? "" | |
1846 | : (ls->line_offset.sign | |
1847 | == LINE_OFFSET_PLUS ? "+" : "-")), | |
1848 | ls->line_offset.offset); | |
40e084e1 | 1849 | } |
a06efdd6 KS |
1850 | |
1851 | tmp = ui_file_xstrdup (buf, NULL); | |
1852 | make_cleanup (xfree, tmp); | |
1853 | state->canonical->location = new_linespec_location (&tmp); | |
1854 | do_cleanups (cleanup); | |
94af9270 | 1855 | } |
c00f8484 | 1856 | |
40e084e1 | 1857 | /* Given a line offset in LS, construct the relevant SALs. */ |
c00f8484 | 1858 | |
40e084e1 KS |
1859 | static struct symtabs_and_lines |
1860 | create_sals_line_offset (struct linespec_state *self, | |
1861 | linespec_p ls) | |
c00f8484 | 1862 | { |
40e084e1 KS |
1863 | struct symtabs_and_lines values; |
1864 | struct symtab_and_line val; | |
1865 | int use_default = 0; | |
c00f8484 | 1866 | |
40e084e1 KS |
1867 | init_sal (&val); |
1868 | values.sals = NULL; | |
1869 | values.nelts = 0; | |
1870 | ||
1871 | /* This is where we need to make sure we have good defaults. | |
1872 | We must guarantee that this section of code is never executed | |
2e47c6ca | 1873 | when we are called with just a function name, since |
40e084e1 KS |
1874 | set_default_source_symtab_and_line uses |
1875 | select_source_symtab that calls us with such an argument. */ | |
1876 | ||
ec94af83 DE |
1877 | if (VEC_length (symtab_ptr, ls->file_symtabs) == 1 |
1878 | && VEC_index (symtab_ptr, ls->file_symtabs, 0) == NULL) | |
3d50dd94 | 1879 | { |
05cba821 JK |
1880 | const char *fullname; |
1881 | ||
40e084e1 | 1882 | set_current_program_space (self->program_space); |
c00f8484 | 1883 | |
40e084e1 KS |
1884 | /* Make sure we have at least a default source line. */ |
1885 | set_default_source_symtab_and_line (); | |
1886 | initialize_defaults (&self->default_symtab, &self->default_line); | |
05cba821 | 1887 | fullname = symtab_to_fullname (self->default_symtab); |
ec94af83 DE |
1888 | VEC_pop (symtab_ptr, ls->file_symtabs); |
1889 | VEC_free (symtab_ptr, ls->file_symtabs); | |
05cba821 | 1890 | ls->file_symtabs = collect_symtabs_from_filename (fullname); |
40e084e1 KS |
1891 | use_default = 1; |
1892 | } | |
c00f8484 | 1893 | |
40e084e1 KS |
1894 | val.line = ls->line_offset.offset; |
1895 | switch (ls->line_offset.sign) | |
1896 | { | |
1897 | case LINE_OFFSET_PLUS: | |
1898 | if (ls->line_offset.offset == 0) | |
1899 | val.line = 5; | |
1900 | if (use_default) | |
1901 | val.line = self->default_line + val.line; | |
1902 | break; | |
1903 | ||
1904 | case LINE_OFFSET_MINUS: | |
1905 | if (ls->line_offset.offset == 0) | |
1906 | val.line = 15; | |
1907 | if (use_default) | |
1908 | val.line = self->default_line - val.line; | |
1909 | else | |
1910 | val.line = -val.line; | |
1911 | break; | |
1912 | ||
1913 | case LINE_OFFSET_NONE: | |
1914 | break; /* No need to adjust val.line. */ | |
1915 | } | |
1916 | ||
1917 | if (self->list_mode) | |
1918 | decode_digits_list_mode (self, ls, &values, val); | |
1919 | else | |
1920 | { | |
1921 | struct linetable_entry *best_entry = NULL; | |
1922 | int *filter; | |
3977b71f | 1923 | const struct block **blocks; |
40e084e1 KS |
1924 | struct cleanup *cleanup; |
1925 | struct symtabs_and_lines intermediate_results; | |
1926 | int i, j; | |
1927 | ||
1928 | intermediate_results.sals = NULL; | |
1929 | intermediate_results.nelts = 0; | |
1930 | ||
1931 | decode_digits_ordinary (self, ls, val.line, &intermediate_results, | |
1932 | &best_entry); | |
1933 | if (intermediate_results.nelts == 0 && best_entry != NULL) | |
1934 | decode_digits_ordinary (self, ls, best_entry->line, | |
1935 | &intermediate_results, &best_entry); | |
1936 | ||
1937 | cleanup = make_cleanup (xfree, intermediate_results.sals); | |
1938 | ||
1939 | /* For optimized code, the compiler can scatter one source line | |
1940 | across disjoint ranges of PC values, even when no duplicate | |
1941 | functions or inline functions are involved. For example, | |
1942 | 'for (;;)' inside a non-template, non-inline, and non-ctor-or-dtor | |
1943 | function can result in two PC ranges. In this case, we don't | |
1944 | want to set a breakpoint on the first PC of each range. To filter | |
1945 | such cases, we use containing blocks -- for each PC found | |
1946 | above, we see if there are other PCs that are in the same | |
1947 | block. If yes, the other PCs are filtered out. */ | |
1948 | ||
1949 | filter = XNEWVEC (int, intermediate_results.nelts); | |
1950 | make_cleanup (xfree, filter); | |
3977b71f | 1951 | blocks = XNEWVEC (const struct block *, intermediate_results.nelts); |
40e084e1 KS |
1952 | make_cleanup (xfree, blocks); |
1953 | ||
1954 | for (i = 0; i < intermediate_results.nelts; ++i) | |
3d50dd94 | 1955 | { |
40e084e1 | 1956 | set_current_program_space (intermediate_results.sals[i].pspace); |
c00f8484 | 1957 | |
40e084e1 KS |
1958 | filter[i] = 1; |
1959 | blocks[i] = block_for_pc_sect (intermediate_results.sals[i].pc, | |
1960 | intermediate_results.sals[i].section); | |
3d50dd94 | 1961 | } |
c00f8484 | 1962 | |
40e084e1 KS |
1963 | for (i = 0; i < intermediate_results.nelts; ++i) |
1964 | { | |
1965 | if (blocks[i] != NULL) | |
1966 | for (j = i + 1; j < intermediate_results.nelts; ++j) | |
1967 | { | |
1968 | if (blocks[j] == blocks[i]) | |
1969 | { | |
1970 | filter[j] = 0; | |
1971 | break; | |
1972 | } | |
1973 | } | |
1974 | } | |
c00f8484 | 1975 | |
40e084e1 KS |
1976 | for (i = 0; i < intermediate_results.nelts; ++i) |
1977 | if (filter[i]) | |
1978 | { | |
1979 | struct symbol *sym = (blocks[i] | |
1980 | ? block_containing_function (blocks[i]) | |
1981 | : NULL); | |
3d50dd94 | 1982 | |
40e084e1 KS |
1983 | if (self->funfirstline) |
1984 | skip_prologue_sal (&intermediate_results.sals[i]); | |
1985 | /* Make sure the line matches the request, not what was | |
1986 | found. */ | |
1987 | intermediate_results.sals[i].line = val.line; | |
1988 | add_sal_to_sals (self, &values, &intermediate_results.sals[i], | |
66f1999b | 1989 | sym ? SYMBOL_NATURAL_NAME (sym) : NULL, 0); |
40e084e1 | 1990 | } |
3d50dd94 | 1991 | |
40e084e1 | 1992 | do_cleanups (cleanup); |
f17170e5 | 1993 | } |
c00f8484 | 1994 | |
40e084e1 KS |
1995 | if (values.nelts == 0) |
1996 | { | |
1997 | if (ls->source_filename) | |
1998 | throw_error (NOT_FOUND_ERROR, _("No line %d in file \"%s\"."), | |
1999 | val.line, ls->source_filename); | |
2000 | else | |
2001 | throw_error (NOT_FOUND_ERROR, _("No line %d in the current file."), | |
2002 | val.line); | |
2003 | } | |
3d50dd94 | 2004 | |
40e084e1 | 2005 | return values; |
c00f8484 KS |
2006 | } |
2007 | ||
a06efdd6 KS |
2008 | /* Convert the given ADDRESS into SaLs. */ |
2009 | ||
2010 | static struct symtabs_and_lines | |
2011 | convert_address_location_to_sals (struct linespec_state *self, | |
2012 | CORE_ADDR address) | |
2013 | { | |
2014 | struct symtab_and_line sal; | |
2015 | struct symtabs_and_lines sals = {NULL, 0}; | |
2016 | ||
2017 | sal = find_pc_line (address, 0); | |
2018 | sal.pc = address; | |
2019 | sal.section = find_pc_overlay (address); | |
2020 | sal.explicit_pc = 1; | |
2021 | add_sal_to_sals (self, &sals, &sal, core_addr_to_string (address), 1); | |
2022 | ||
2023 | return sals; | |
2024 | } | |
2025 | ||
40e084e1 KS |
2026 | /* Create and return SALs from the linespec LS. */ |
2027 | ||
2028 | static struct symtabs_and_lines | |
2029 | convert_linespec_to_sals (struct linespec_state *state, linespec_p ls) | |
2030 | { | |
2031 | struct symtabs_and_lines sals = {NULL, 0}; | |
2032 | ||
a06efdd6 | 2033 | if (ls->labels.label_symbols != NULL) |
40e084e1 KS |
2034 | { |
2035 | /* We have just a bunch of functions/methods or labels. */ | |
2036 | int i; | |
2037 | struct symtab_and_line sal; | |
2038 | struct symbol *sym; | |
2039 | ||
2040 | for (i = 0; VEC_iterate (symbolp, ls->labels.label_symbols, i, sym); ++i) | |
2041 | { | |
08be3fe3 | 2042 | struct program_space *pspace = SYMTAB_PSPACE (symbol_symtab (sym)); |
fdbb204b TT |
2043 | |
2044 | if (symbol_to_sal (&sal, state->funfirstline, sym) | |
2045 | && maybe_add_address (state->addr_set, pspace, sal.pc)) | |
64b92e45 KS |
2046 | add_sal_to_sals (state, &sals, &sal, |
2047 | SYMBOL_NATURAL_NAME (sym), 0); | |
40e084e1 KS |
2048 | } |
2049 | } | |
2050 | else if (ls->function_symbols != NULL || ls->minimal_symbols != NULL) | |
2051 | { | |
2052 | /* We have just a bunch of functions and/or methods. */ | |
2053 | int i; | |
2054 | struct symtab_and_line sal; | |
2055 | struct symbol *sym; | |
f60e2d5c | 2056 | bound_minimal_symbol_d *elem; |
40e084e1 KS |
2057 | struct program_space *pspace; |
2058 | ||
2059 | if (ls->function_symbols != NULL) | |
2060 | { | |
2061 | /* Sort symbols so that symbols with the same program space are next | |
2062 | to each other. */ | |
2063 | qsort (VEC_address (symbolp, ls->function_symbols), | |
2064 | VEC_length (symbolp, ls->function_symbols), | |
2065 | sizeof (symbolp), compare_symbols); | |
2066 | ||
2067 | for (i = 0; VEC_iterate (symbolp, ls->function_symbols, i, sym); ++i) | |
2068 | { | |
08be3fe3 | 2069 | pspace = SYMTAB_PSPACE (symbol_symtab (sym)); |
40e084e1 | 2070 | set_current_program_space (pspace); |
64b92e45 KS |
2071 | if (symbol_to_sal (&sal, state->funfirstline, sym) |
2072 | && maybe_add_address (state->addr_set, pspace, sal.pc)) | |
66f1999b KS |
2073 | add_sal_to_sals (state, &sals, &sal, |
2074 | SYMBOL_NATURAL_NAME (sym), 0); | |
40e084e1 KS |
2075 | } |
2076 | } | |
2077 | ||
2078 | if (ls->minimal_symbols != NULL) | |
2079 | { | |
2080 | /* Sort minimal symbols by program space, too. */ | |
f60e2d5c TT |
2081 | qsort (VEC_address (bound_minimal_symbol_d, ls->minimal_symbols), |
2082 | VEC_length (bound_minimal_symbol_d, ls->minimal_symbols), | |
2083 | sizeof (bound_minimal_symbol_d), compare_msymbols); | |
40e084e1 KS |
2084 | |
2085 | for (i = 0; | |
f60e2d5c TT |
2086 | VEC_iterate (bound_minimal_symbol_d, ls->minimal_symbols, |
2087 | i, elem); | |
40e084e1 KS |
2088 | ++i) |
2089 | { | |
001822aa | 2090 | pspace = elem->objfile->pspace; |
40e084e1 KS |
2091 | set_current_program_space (pspace); |
2092 | minsym_found (state, elem->objfile, elem->minsym, &sals); | |
2093 | } | |
2094 | } | |
2095 | } | |
2096 | else if (ls->line_offset.sign != LINE_OFFSET_UNKNOWN) | |
2097 | { | |
2098 | /* Only an offset was specified. */ | |
2099 | sals = create_sals_line_offset (state, ls); | |
2100 | ||
2101 | /* Make sure we have a filename for canonicalization. */ | |
2102 | if (ls->source_filename == NULL) | |
05cba821 JK |
2103 | { |
2104 | const char *fullname = symtab_to_fullname (state->default_symtab); | |
2105 | ||
e93ba630 JK |
2106 | /* It may be more appropriate to keep DEFAULT_SYMTAB in its symtab |
2107 | form so that displaying SOURCE_FILENAME can follow the current | |
2108 | FILENAME_DISPLAY_STRING setting. But as it is used only rarely | |
2109 | it has been kept for code simplicity only in absolute form. */ | |
05cba821 JK |
2110 | ls->source_filename = xstrdup (fullname); |
2111 | } | |
40e084e1 KS |
2112 | } |
2113 | else | |
2114 | { | |
2115 | /* We haven't found any results... */ | |
2116 | return sals; | |
2117 | } | |
2118 | ||
2119 | canonicalize_linespec (state, ls); | |
2120 | ||
2121 | if (sals.nelts > 0 && state->canonical != NULL) | |
2122 | state->canonical->pre_expanded = 1; | |
2123 | ||
2124 | return sals; | |
2125 | } | |
50641945 | 2126 | |
40e084e1 | 2127 | /* Parse a string that specifies a linespec. |
50641945 | 2128 | |
40e084e1 | 2129 | The basic grammar of linespecs: |
50641945 | 2130 | |
a06efdd6 | 2131 | linespec -> var_spec | basic_spec |
40e084e1 | 2132 | var_spec -> '$' (STRING | NUMBER) |
50641945 | 2133 | |
40e084e1 KS |
2134 | basic_spec -> file_offset_spec | function_spec | label_spec |
2135 | file_offset_spec -> opt_file_spec offset_spec | |
2136 | function_spec -> opt_file_spec function_name_spec opt_label_spec | |
2137 | label_spec -> label_name_spec | |
50641945 | 2138 | |
40e084e1 KS |
2139 | opt_file_spec -> "" | file_name_spec ':' |
2140 | opt_label_spec -> "" | ':' label_name_spec | |
2141 | ||
2142 | file_name_spec -> STRING | |
2143 | function_name_spec -> STRING | |
2144 | label_name_spec -> STRING | |
2145 | function_name_spec -> STRING | |
2146 | offset_spec -> NUMBER | |
2147 | -> '+' NUMBER | |
2148 | -> '-' NUMBER | |
2149 | ||
2150 | This may all be followed by several keywords such as "if EXPR", | |
2151 | which we ignore. | |
2152 | ||
2153 | A comma will terminate parsing. | |
2154 | ||
2155 | The function may be an undebuggable function found in minimal symbol table. | |
50641945 FN |
2156 | |
2157 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2158 | of real code inside a function when a function is specified, and it is | |
2159 | not OK to specify a variable or type to get its line number. | |
2160 | ||
2161 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
2162 | It defaults to current_source_symtab. | |
2163 | DEFAULT_LINE specifies the line number to use for relative | |
2164 | line numbers (that start with signs). Defaults to current_source_line. | |
2165 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
1777feb0 | 2166 | line specs there if necessary. Currently overloaded member functions and |
50641945 | 2167 | line numbers or static functions without a filename yield a canonical |
1777feb0 | 2168 | line spec. The array and the line spec strings are allocated on the heap, |
50641945 FN |
2169 | it is the callers responsibility to free them. |
2170 | ||
2171 | Note that it is possible to return zero for the symtab | |
2172 | if no file is validly specified. Callers must check that. | |
58438ac1 | 2173 | Also, the line number returned may be invalid. */ |
50641945 | 2174 | |
f00aae0f | 2175 | /* Parse the linespec in ARG. */ |
50641945 | 2176 | |
ad32032e | 2177 | static struct symtabs_and_lines |
f00aae0f | 2178 | parse_linespec (linespec_parser *parser, const char *arg) |
50641945 | 2179 | { |
40e084e1 KS |
2180 | linespec_token token; |
2181 | struct symtabs_and_lines values; | |
7556d4a4 | 2182 | struct gdb_exception file_exception = exception_none; |
40e084e1 KS |
2183 | struct cleanup *cleanup; |
2184 | ||
2185 | /* A special case to start. It has become quite popular for | |
2186 | IDEs to work around bugs in the previous parser by quoting | |
2187 | the entire linespec, so we attempt to deal with this nicely. */ | |
2188 | parser->is_quote_enclosed = 0; | |
f00aae0f KS |
2189 | if (!is_ada_operator (arg) |
2190 | && strchr (linespec_quote_characters, *arg) != NULL) | |
40e084e1 KS |
2191 | { |
2192 | const char *end; | |
9ef07c8c | 2193 | |
f00aae0f | 2194 | end = skip_quote_char (arg + 1, *arg); |
40e084e1 | 2195 | if (end != NULL && is_closing_quote_enclosed (end)) |
136e1c30 | 2196 | { |
f00aae0f | 2197 | /* Here's the special case. Skip ARG past the initial |
40e084e1 | 2198 | quote. */ |
f00aae0f | 2199 | ++arg; |
40e084e1 | 2200 | parser->is_quote_enclosed = 1; |
136e1c30 DE |
2201 | } |
2202 | } | |
e8eb7bc5 | 2203 | |
f00aae0f KS |
2204 | parser->lexer.saved_arg = arg; |
2205 | parser->lexer.stream = arg; | |
d2630e69 | 2206 | |
40e084e1 KS |
2207 | /* Initialize the default symtab and line offset. */ |
2208 | initialize_defaults (&PARSER_STATE (parser)->default_symtab, | |
2209 | &PARSER_STATE (parser)->default_line); | |
d2630e69 | 2210 | |
40e084e1 | 2211 | /* Objective-C shortcut. */ |
f00aae0f | 2212 | values = decode_objc (PARSER_STATE (parser), PARSER_RESULT (parser), arg); |
40e084e1 KS |
2213 | if (values.sals != NULL) |
2214 | return values; | |
e0881a8e | 2215 | |
40e084e1 | 2216 | /* Start parsing. */ |
d2630e69 | 2217 | |
40e084e1 KS |
2218 | /* Get the first token. */ |
2219 | token = linespec_lexer_lex_one (parser); | |
50641945 | 2220 | |
40e084e1 | 2221 | /* It must be either LSTOKEN_STRING or LSTOKEN_NUMBER. */ |
a06efdd6 | 2222 | if (token.type == LSTOKEN_STRING && *LS_TOKEN_STOKEN (token).ptr == '$') |
40e084e1 KS |
2223 | { |
2224 | char *var; | |
50641945 | 2225 | |
40e084e1 | 2226 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
ec94af83 | 2227 | VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL); |
dcf9f4ab | 2228 | |
40e084e1 KS |
2229 | /* User specified a convenience variable or history value. */ |
2230 | var = copy_token_string (token); | |
2231 | cleanup = make_cleanup (xfree, var); | |
2232 | PARSER_RESULT (parser)->line_offset | |
2233 | = linespec_parse_variable (PARSER_STATE (parser), var); | |
cf4ded82 | 2234 | do_cleanups (cleanup); |
f8eba3c6 | 2235 | |
40e084e1 KS |
2236 | /* If a line_offset wasn't found (VAR is the name of a user |
2237 | variable/function), then skip to normal symbol processing. */ | |
2238 | if (PARSER_RESULT (parser)->line_offset.sign != LINE_OFFSET_UNKNOWN) | |
2239 | { | |
40e084e1 KS |
2240 | /* Consume this token. */ |
2241 | linespec_lexer_consume_token (parser); | |
dcf9f4ab | 2242 | |
40e084e1 | 2243 | goto convert_to_sals; |
50641945 | 2244 | } |
40e084e1 KS |
2245 | } |
2246 | else if (token.type != LSTOKEN_STRING && token.type != LSTOKEN_NUMBER) | |
2247 | unexpected_linespec_error (parser); | |
50641945 | 2248 | |
40e084e1 KS |
2249 | /* Shortcut: If the next token is not LSTOKEN_COLON, we know that |
2250 | this token cannot represent a filename. */ | |
2251 | token = linespec_lexer_peek_token (parser); | |
0e0b460e | 2252 | |
40e084e1 | 2253 | if (token.type == LSTOKEN_COLON) |
0e0b460e | 2254 | { |
40e084e1 | 2255 | char *user_filename; |
0e0b460e | 2256 | |
40e084e1 KS |
2257 | /* Get the current token again and extract the filename. */ |
2258 | token = linespec_lexer_lex_one (parser); | |
2259 | user_filename = copy_token_string (token); | |
50641945 | 2260 | |
40e084e1 | 2261 | /* Check if the input is a filename. */ |
492d29ea | 2262 | TRY |
40e084e1 KS |
2263 | { |
2264 | PARSER_RESULT (parser)->file_symtabs | |
2265 | = symtabs_from_filename (user_filename); | |
2266 | } | |
492d29ea | 2267 | CATCH (ex, RETURN_MASK_ERROR) |
7556d4a4 PA |
2268 | { |
2269 | file_exception = ex; | |
2270 | } | |
492d29ea | 2271 | END_CATCH |
50641945 | 2272 | |
40e084e1 KS |
2273 | if (file_exception.reason >= 0) |
2274 | { | |
2275 | /* Symtabs were found for the file. Record the filename. */ | |
2276 | PARSER_RESULT (parser)->source_filename = user_filename; | |
f8eba3c6 | 2277 | |
40e084e1 KS |
2278 | /* Get the next token. */ |
2279 | token = linespec_lexer_consume_token (parser); | |
50641945 | 2280 | |
40e084e1 KS |
2281 | /* This is LSTOKEN_COLON; consume it. */ |
2282 | linespec_lexer_consume_token (parser); | |
2283 | } | |
2284 | else | |
2285 | { | |
2286 | /* No symtabs found -- discard user_filename. */ | |
2287 | xfree (user_filename); | |
50641945 | 2288 | |
40e084e1 | 2289 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
ec94af83 | 2290 | VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL); |
40e084e1 | 2291 | } |
50641945 | 2292 | } |
40e084e1 KS |
2293 | /* If the next token is not EOI, KEYWORD, or COMMA, issue an error. */ |
2294 | else if (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD | |
2295 | && token.type != LSTOKEN_COMMA) | |
d2630e69 | 2296 | { |
40e084e1 KS |
2297 | /* TOKEN is the _next_ token, not the one currently in the parser. |
2298 | Consuming the token will give the correct error message. */ | |
2299 | linespec_lexer_consume_token (parser); | |
2300 | unexpected_linespec_error (parser); | |
d2630e69 | 2301 | } |
50641945 FN |
2302 | else |
2303 | { | |
40e084e1 | 2304 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
ec94af83 | 2305 | VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL); |
50641945 | 2306 | } |
50641945 | 2307 | |
40e084e1 KS |
2308 | /* Parse the rest of the linespec. */ |
2309 | linespec_parse_basic (parser); | |
50641945 | 2310 | |
40e084e1 KS |
2311 | if (PARSER_RESULT (parser)->function_symbols == NULL |
2312 | && PARSER_RESULT (parser)->labels.label_symbols == NULL | |
2313 | && PARSER_RESULT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN | |
2314 | && PARSER_RESULT (parser)->minimal_symbols == NULL) | |
f8eba3c6 | 2315 | { |
40e084e1 KS |
2316 | /* The linespec didn't parse. Re-throw the file exception if |
2317 | there was one. */ | |
2318 | if (file_exception.reason < 0) | |
2319 | throw_exception (file_exception); | |
0f5238ed | 2320 | |
40e084e1 KS |
2321 | /* Otherwise, the symbol is not found. */ |
2322 | symbol_not_found_error (PARSER_RESULT (parser)->function_name, | |
2323 | PARSER_RESULT (parser)->source_filename); | |
0f5238ed TT |
2324 | } |
2325 | ||
40e084e1 | 2326 | convert_to_sals: |
9ef07c8c | 2327 | |
40e084e1 KS |
2328 | /* Get the last token and record how much of the input was parsed, |
2329 | if necessary. */ | |
2330 | token = linespec_lexer_lex_one (parser); | |
2331 | if (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD) | |
2332 | PARSER_STREAM (parser) = LS_TOKEN_STOKEN (token).ptr; | |
50641945 | 2333 | |
40e084e1 KS |
2334 | /* Convert the data in PARSER_RESULT to SALs. */ |
2335 | values = convert_linespec_to_sals (PARSER_STATE (parser), | |
2336 | PARSER_RESULT (parser)); | |
f8eba3c6 | 2337 | |
40e084e1 | 2338 | return values; |
413dad4d | 2339 | } |
50641945 | 2340 | |
40e084e1 | 2341 | |
f8eba3c6 | 2342 | /* A constructor for linespec_state. */ |
44fe14ab | 2343 | |
f8eba3c6 TT |
2344 | static void |
2345 | linespec_state_constructor (struct linespec_state *self, | |
40e084e1 | 2346 | int flags, const struct language_defn *language, |
f8eba3c6 TT |
2347 | struct symtab *default_symtab, |
2348 | int default_line, | |
2349 | struct linespec_result *canonical) | |
2350 | { | |
2351 | memset (self, 0, sizeof (*self)); | |
40e084e1 | 2352 | self->language = language; |
f8eba3c6 TT |
2353 | self->funfirstline = (flags & DECODE_LINE_FUNFIRSTLINE) ? 1 : 0; |
2354 | self->list_mode = (flags & DECODE_LINE_LIST_MODE) ? 1 : 0; | |
2355 | self->default_symtab = default_symtab; | |
2356 | self->default_line = default_line; | |
2357 | self->canonical = canonical; | |
2358 | self->program_space = current_program_space; | |
2359 | self->addr_set = htab_create_alloc (10, hash_address_entry, eq_address_entry, | |
2360 | xfree, xcalloc, xfree); | |
2361 | } | |
44fe14ab | 2362 | |
40e084e1 | 2363 | /* Initialize a new linespec parser. */ |
44fe14ab DC |
2364 | |
2365 | static void | |
40e084e1 KS |
2366 | linespec_parser_new (linespec_parser *parser, |
2367 | int flags, const struct language_defn *language, | |
2368 | struct symtab *default_symtab, | |
2369 | int default_line, | |
2370 | struct linespec_result *canonical) | |
44fe14ab | 2371 | { |
f00aae0f | 2372 | memset (parser, 0, sizeof (linespec_parser)); |
40e084e1 KS |
2373 | parser->lexer.current.type = LSTOKEN_CONSUMED; |
2374 | memset (PARSER_RESULT (parser), 0, sizeof (struct linespec)); | |
2375 | PARSER_RESULT (parser)->line_offset.sign = LINE_OFFSET_UNKNOWN; | |
2376 | linespec_state_constructor (PARSER_STATE (parser), flags, language, | |
2377 | default_symtab, default_line, canonical); | |
2378 | } | |
2379 | ||
2380 | /* A destructor for linespec_state. */ | |
44fe14ab | 2381 | |
40e084e1 KS |
2382 | static void |
2383 | linespec_state_destructor (struct linespec_state *self) | |
2384 | { | |
f8eba3c6 TT |
2385 | htab_delete (self->addr_set); |
2386 | } | |
44fe14ab | 2387 | |
40e084e1 KS |
2388 | /* Delete a linespec parser. */ |
2389 | ||
2390 | static void | |
2391 | linespec_parser_delete (void *arg) | |
2392 | { | |
2393 | linespec_parser *parser = (linespec_parser *) arg; | |
2394 | ||
5d94e27b KS |
2395 | xfree ((char *) PARSER_RESULT (parser)->expression); |
2396 | xfree ((char *) PARSER_RESULT (parser)->source_filename); | |
2397 | xfree ((char *) PARSER_RESULT (parser)->label_name); | |
2398 | xfree ((char *) PARSER_RESULT (parser)->function_name); | |
40e084e1 KS |
2399 | |
2400 | if (PARSER_RESULT (parser)->file_symtabs != NULL) | |
ec94af83 | 2401 | VEC_free (symtab_ptr, PARSER_RESULT (parser)->file_symtabs); |
40e084e1 KS |
2402 | |
2403 | if (PARSER_RESULT (parser)->function_symbols != NULL) | |
2404 | VEC_free (symbolp, PARSER_RESULT (parser)->function_symbols); | |
2405 | ||
2406 | if (PARSER_RESULT (parser)->minimal_symbols != NULL) | |
f60e2d5c | 2407 | VEC_free (bound_minimal_symbol_d, PARSER_RESULT (parser)->minimal_symbols); |
40e084e1 KS |
2408 | |
2409 | if (PARSER_RESULT (parser)->labels.label_symbols != NULL) | |
2410 | VEC_free (symbolp, PARSER_RESULT (parser)->labels.label_symbols); | |
2411 | ||
2412 | if (PARSER_RESULT (parser)->labels.function_symbols != NULL) | |
2413 | VEC_free (symbolp, PARSER_RESULT (parser)->labels.function_symbols); | |
2414 | ||
2415 | linespec_state_destructor (PARSER_STATE (parser)); | |
2416 | } | |
2417 | ||
c7c1b3e9 KS |
2418 | /* See description in linespec.h. */ |
2419 | ||
2420 | void | |
2421 | linespec_lex_to_end (char **stringp) | |
2422 | { | |
2423 | linespec_parser parser; | |
2424 | struct cleanup *cleanup; | |
2425 | linespec_token token; | |
c7c1b3e9 KS |
2426 | const char *orig; |
2427 | ||
2428 | if (stringp == NULL || *stringp == NULL) | |
2429 | return; | |
2430 | ||
2431 | linespec_parser_new (&parser, 0, current_language, NULL, 0, NULL); | |
2432 | cleanup = make_cleanup (linespec_parser_delete, &parser); | |
2433 | parser.lexer.saved_arg = *stringp; | |
2434 | PARSER_STREAM (&parser) = orig = *stringp; | |
2435 | ||
2436 | do | |
2437 | { | |
2438 | /* Stop before any comma tokens; we need it to keep it | |
2439 | as the next token in the string. */ | |
2440 | token = linespec_lexer_peek_token (&parser); | |
2441 | if (token.type == LSTOKEN_COMMA) | |
2442 | break; | |
c7c1b3e9 KS |
2443 | token = linespec_lexer_consume_token (&parser); |
2444 | } | |
2445 | while (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD); | |
2446 | ||
2447 | *stringp += PARSER_STREAM (&parser) - orig; | |
2448 | do_cleanups (cleanup); | |
2449 | } | |
2450 | ||
f00aae0f KS |
2451 | /* A helper function for decode_line_full and decode_line_1 to |
2452 | turn LOCATION into symtabs_and_lines. */ | |
2453 | ||
2454 | static struct symtabs_and_lines | |
2455 | event_location_to_sals (linespec_parser *parser, | |
2456 | const struct event_location *location) | |
2457 | { | |
2458 | struct symtabs_and_lines result = {NULL, 0}; | |
2459 | ||
2460 | switch (event_location_type (location)) | |
2461 | { | |
2462 | case LINESPEC_LOCATION: | |
2463 | { | |
2464 | TRY | |
2465 | { | |
2466 | result = parse_linespec (parser, get_linespec_location (location)); | |
2467 | } | |
2468 | CATCH (except, RETURN_MASK_ERROR) | |
2469 | { | |
2470 | throw_exception (except); | |
2471 | } | |
2472 | END_CATCH | |
2473 | } | |
2474 | break; | |
2475 | ||
a06efdd6 KS |
2476 | case ADDRESS_LOCATION: |
2477 | result | |
2478 | = convert_address_location_to_sals (PARSER_STATE (parser), | |
2479 | get_address_location (location)); | |
2480 | break; | |
2481 | ||
5b56227b KS |
2482 | case PROBE_LOCATION: |
2483 | /* Probes are handled by their own decoders. */ | |
2484 | gdb_assert_not_reached ("attempt to decode probe location"); | |
2485 | break; | |
2486 | ||
f00aae0f KS |
2487 | default: |
2488 | gdb_assert_not_reached ("unhandled event location type"); | |
2489 | } | |
2490 | ||
2491 | return result; | |
2492 | } | |
2493 | ||
f8eba3c6 | 2494 | /* See linespec.h. */ |
44fe14ab | 2495 | |
f8eba3c6 | 2496 | void |
f00aae0f | 2497 | decode_line_full (const struct event_location *location, int flags, |
f8eba3c6 TT |
2498 | struct symtab *default_symtab, |
2499 | int default_line, struct linespec_result *canonical, | |
2500 | const char *select_mode, | |
2501 | const char *filter) | |
44fe14ab | 2502 | { |
f8eba3c6 | 2503 | struct symtabs_and_lines result; |
f8eba3c6 | 2504 | struct cleanup *cleanups; |
f8eba3c6 | 2505 | VEC (const_char_ptr) *filters = NULL; |
40e084e1 KS |
2506 | linespec_parser parser; |
2507 | struct linespec_state *state; | |
f8eba3c6 TT |
2508 | |
2509 | gdb_assert (canonical != NULL); | |
2510 | /* The filter only makes sense for 'all'. */ | |
2511 | gdb_assert (filter == NULL || select_mode == multiple_symbols_all); | |
2512 | gdb_assert (select_mode == NULL | |
2513 | || select_mode == multiple_symbols_all | |
2514 | || select_mode == multiple_symbols_ask | |
2515 | || select_mode == multiple_symbols_cancel); | |
2516 | gdb_assert ((flags & DECODE_LINE_LIST_MODE) == 0); | |
2517 | ||
40e084e1 KS |
2518 | linespec_parser_new (&parser, flags, current_language, default_symtab, |
2519 | default_line, canonical); | |
2520 | cleanups = make_cleanup (linespec_parser_delete, &parser); | |
f8eba3c6 TT |
2521 | save_current_program_space (); |
2522 | ||
f00aae0f | 2523 | result = event_location_to_sals (&parser, location); |
40e084e1 | 2524 | state = PARSER_STATE (&parser); |
f8eba3c6 TT |
2525 | |
2526 | gdb_assert (result.nelts == 1 || canonical->pre_expanded); | |
f8eba3c6 TT |
2527 | canonical->pre_expanded = 1; |
2528 | ||
66f1999b | 2529 | /* Arrange for allocated canonical names to be freed. */ |
f8eba3c6 TT |
2530 | if (result.nelts > 0) |
2531 | { | |
2532 | int i; | |
2533 | ||
40e084e1 | 2534 | make_cleanup (xfree, state->canonical_names); |
f8eba3c6 TT |
2535 | for (i = 0; i < result.nelts; ++i) |
2536 | { | |
33f448b1 JK |
2537 | gdb_assert (state->canonical_names[i].suffix != NULL); |
2538 | make_cleanup (xfree, state->canonical_names[i].suffix); | |
f8eba3c6 TT |
2539 | } |
2540 | } | |
2541 | ||
2542 | if (select_mode == NULL) | |
2543 | { | |
2544 | if (ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
2545 | select_mode = multiple_symbols_all; | |
2546 | else | |
2547 | select_mode = multiple_symbols_select_mode (); | |
2548 | } | |
2549 | ||
2550 | if (select_mode == multiple_symbols_all) | |
2551 | { | |
2552 | if (filter != NULL) | |
2553 | { | |
2554 | make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
2555 | VEC_safe_push (const_char_ptr, filters, filter); | |
40e084e1 | 2556 | filter_results (state, &result, filters); |
f8eba3c6 TT |
2557 | } |
2558 | else | |
40e084e1 | 2559 | convert_results_to_lsals (state, &result); |
f8eba3c6 TT |
2560 | } |
2561 | else | |
40e084e1 | 2562 | decode_line_2 (state, &result, select_mode); |
f8eba3c6 TT |
2563 | |
2564 | do_cleanups (cleanups); | |
2565 | } | |
2566 | ||
39cf75f7 DE |
2567 | /* See linespec.h. */ |
2568 | ||
f8eba3c6 | 2569 | struct symtabs_and_lines |
f00aae0f | 2570 | decode_line_1 (const struct event_location *location, int flags, |
f8eba3c6 TT |
2571 | struct symtab *default_symtab, |
2572 | int default_line) | |
2573 | { | |
2574 | struct symtabs_and_lines result; | |
40e084e1 | 2575 | linespec_parser parser; |
f8eba3c6 TT |
2576 | struct cleanup *cleanups; |
2577 | ||
40e084e1 KS |
2578 | linespec_parser_new (&parser, flags, current_language, default_symtab, |
2579 | default_line, NULL); | |
2580 | cleanups = make_cleanup (linespec_parser_delete, &parser); | |
f8eba3c6 TT |
2581 | save_current_program_space (); |
2582 | ||
f00aae0f | 2583 | result = event_location_to_sals (&parser, location); |
40e084e1 | 2584 | |
f8eba3c6 TT |
2585 | do_cleanups (cleanups); |
2586 | return result; | |
2587 | } | |
2588 | ||
39cf75f7 DE |
2589 | /* See linespec.h. */ |
2590 | ||
2591 | struct symtabs_and_lines | |
2592 | decode_line_with_current_source (char *string, int flags) | |
2593 | { | |
2594 | struct symtabs_and_lines sals; | |
2595 | struct symtab_and_line cursal; | |
f00aae0f KS |
2596 | struct event_location *location; |
2597 | struct cleanup *cleanup; | |
39cf75f7 DE |
2598 | |
2599 | if (string == 0) | |
2600 | error (_("Empty line specification.")); | |
2601 | ||
2602 | /* We use whatever is set as the current source line. We do not try | |
2603 | and get a default source symtab+line or it will recursively call us! */ | |
2604 | cursal = get_current_source_symtab_and_line (); | |
2605 | ||
f00aae0f KS |
2606 | location = string_to_event_location (&string, current_language); |
2607 | cleanup = make_cleanup_delete_event_location (location); | |
2608 | sals = decode_line_1 (location, flags, | |
39cf75f7 DE |
2609 | cursal.symtab, cursal.line); |
2610 | ||
2611 | if (*string) | |
2612 | error (_("Junk at end of line specification: %s"), string); | |
f00aae0f KS |
2613 | |
2614 | do_cleanups (cleanup); | |
39cf75f7 DE |
2615 | return sals; |
2616 | } | |
2617 | ||
2618 | /* See linespec.h. */ | |
2619 | ||
2620 | struct symtabs_and_lines | |
2621 | decode_line_with_last_displayed (char *string, int flags) | |
2622 | { | |
2623 | struct symtabs_and_lines sals; | |
f00aae0f KS |
2624 | struct event_location *location; |
2625 | struct cleanup *cleanup; | |
39cf75f7 DE |
2626 | |
2627 | if (string == 0) | |
2628 | error (_("Empty line specification.")); | |
2629 | ||
f00aae0f KS |
2630 | location = string_to_event_location (&string, current_language); |
2631 | cleanup = make_cleanup_delete_event_location (location); | |
39cf75f7 | 2632 | if (last_displayed_sal_is_valid ()) |
f00aae0f | 2633 | sals = decode_line_1 (location, flags, |
39cf75f7 DE |
2634 | get_last_displayed_symtab (), |
2635 | get_last_displayed_line ()); | |
2636 | else | |
f00aae0f | 2637 | sals = decode_line_1 (location, flags, (struct symtab *) NULL, 0); |
39cf75f7 DE |
2638 | |
2639 | if (*string) | |
2640 | error (_("Junk at end of line specification: %s"), string); | |
f00aae0f KS |
2641 | |
2642 | do_cleanups (cleanup); | |
39cf75f7 DE |
2643 | return sals; |
2644 | } | |
2645 | ||
f8eba3c6 TT |
2646 | \f |
2647 | ||
2648 | /* First, some functions to initialize stuff at the beggining of the | |
2649 | function. */ | |
2650 | ||
2651 | static void | |
2652 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
2653 | { | |
2654 | if (*default_symtab == 0) | |
2655 | { | |
2656 | /* Use whatever we have for the default source line. We don't use | |
2657 | get_current_or_default_symtab_and_line as it can recurse and call | |
2658 | us back! */ | |
2659 | struct symtab_and_line cursal = | |
2660 | get_current_source_symtab_and_line (); | |
2661 | ||
2662 | *default_symtab = cursal.symtab; | |
2663 | *default_line = cursal.line; | |
2664 | } | |
2665 | } | |
2666 | ||
2667 | \f | |
2668 | ||
40e084e1 KS |
2669 | /* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR, |
2670 | advancing EXP_PTR past any parsed text. */ | |
f8eba3c6 | 2671 | |
a06efdd6 | 2672 | CORE_ADDR |
bbc13ae3 | 2673 | linespec_expression_to_pc (const char **exp_ptr) |
f8eba3c6 | 2674 | { |
f8eba3c6 TT |
2675 | if (current_program_space->executing_startup) |
2676 | /* The error message doesn't really matter, because this case | |
2677 | should only hit during breakpoint reset. */ | |
2678 | throw_error (NOT_FOUND_ERROR, _("cannot evaluate expressions while " | |
2679 | "program space is in startup")); | |
2680 | ||
40e084e1 KS |
2681 | (*exp_ptr)++; |
2682 | return value_as_address (parse_to_comma_and_eval (exp_ptr)); | |
0960f083 DC |
2683 | } |
2684 | ||
2685 | \f | |
2686 | ||
d2630e69 AF |
2687 | /* Here's where we recognise an Objective-C Selector. An Objective C |
2688 | selector may be implemented by more than one class, therefore it | |
2689 | may represent more than one method/function. This gives us a | |
2690 | situation somewhat analogous to C++ overloading. If there's more | |
2691 | than one method that could represent the selector, then use some of | |
2692 | the existing C++ code to let the user choose one. */ | |
2693 | ||
f8eba3c6 | 2694 | static struct symtabs_and_lines |
f00aae0f | 2695 | decode_objc (struct linespec_state *self, linespec_p ls, const char *arg) |
d2630e69 | 2696 | { |
f8eba3c6 TT |
2697 | struct collect_info info; |
2698 | VEC (const_char_ptr) *symbol_names = NULL; | |
40e084e1 | 2699 | struct symtabs_and_lines values; |
d7561cbb | 2700 | const char *new_argptr; |
f8eba3c6 TT |
2701 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr), |
2702 | &symbol_names); | |
2703 | ||
2704 | info.state = self; | |
40e084e1 | 2705 | info.file_symtabs = NULL; |
ec94af83 DE |
2706 | VEC_safe_push (symtab_ptr, info.file_symtabs, NULL); |
2707 | make_cleanup (VEC_cleanup (symtab_ptr), &info.file_symtabs); | |
40e084e1 KS |
2708 | info.result.symbols = NULL; |
2709 | info.result.minimal_symbols = NULL; | |
2710 | values.nelts = 0; | |
2711 | values.sals = NULL; | |
f8eba3c6 | 2712 | |
f00aae0f | 2713 | new_argptr = find_imps (arg, &symbol_names); |
f8eba3c6 TT |
2714 | if (VEC_empty (const_char_ptr, symbol_names)) |
2715 | { | |
2716 | do_cleanups (cleanup); | |
40e084e1 | 2717 | return values; |
f8eba3c6 | 2718 | } |
d2630e69 | 2719 | |
f8eba3c6 | 2720 | add_all_symbol_names_from_pspace (&info, NULL, symbol_names); |
d2630e69 | 2721 | |
40e084e1 | 2722 | if (!VEC_empty (symbolp, info.result.symbols) |
f60e2d5c | 2723 | || !VEC_empty (bound_minimal_symbol_d, info.result.minimal_symbols)) |
d2630e69 | 2724 | { |
f8eba3c6 | 2725 | char *saved_arg; |
d2630e69 | 2726 | |
f00aae0f KS |
2727 | saved_arg = alloca (new_argptr - arg + 1); |
2728 | memcpy (saved_arg, arg, new_argptr - arg); | |
2729 | saved_arg[new_argptr - arg] = '\0'; | |
d2630e69 | 2730 | |
0f5f4ffe | 2731 | ls->function_name = xstrdup (saved_arg); |
40e084e1 KS |
2732 | ls->function_symbols = info.result.symbols; |
2733 | ls->minimal_symbols = info.result.minimal_symbols; | |
2734 | values = convert_linespec_to_sals (self, ls); | |
2735 | ||
f8eba3c6 | 2736 | if (self->canonical) |
d2630e69 | 2737 | { |
f00aae0f KS |
2738 | char *str; |
2739 | ||
f8eba3c6 | 2740 | self->canonical->pre_expanded = 1; |
f00aae0f | 2741 | |
40e084e1 | 2742 | if (ls->source_filename) |
f00aae0f KS |
2743 | { |
2744 | str = xstrprintf ("%s:%s", | |
2745 | ls->source_filename, saved_arg); | |
2746 | } | |
f8eba3c6 | 2747 | else |
f00aae0f KS |
2748 | str = xstrdup (saved_arg); |
2749 | ||
2750 | make_cleanup (xfree, str); | |
2751 | self->canonical->location = new_linespec_location (&str); | |
d2630e69 | 2752 | } |
d2630e69 AF |
2753 | } |
2754 | ||
f8eba3c6 | 2755 | do_cleanups (cleanup); |
c00f8484 | 2756 | |
40e084e1 | 2757 | return values; |
f8eba3c6 | 2758 | } |
c00f8484 | 2759 | |
f8eba3c6 TT |
2760 | /* An instance of this type is used when collecting prefix symbols for |
2761 | decode_compound. */ | |
17763fd9 | 2762 | |
f8eba3c6 TT |
2763 | struct decode_compound_collector |
2764 | { | |
2765 | /* The result vector. */ | |
2766 | VEC (symbolp) *symbols; | |
3a93a0c2 | 2767 | |
f8eba3c6 TT |
2768 | /* A hash table of all symbols we found. We use this to avoid |
2769 | adding any symbol more than once. */ | |
2770 | htab_t unique_syms; | |
2771 | }; | |
3a93a0c2 | 2772 | |
f8eba3c6 TT |
2773 | /* A callback for iterate_over_symbols that is used by |
2774 | lookup_prefix_sym to collect type symbols. */ | |
c00f8484 | 2775 | |
f8eba3c6 TT |
2776 | static int |
2777 | collect_one_symbol (struct symbol *sym, void *d) | |
2778 | { | |
2779 | struct decode_compound_collector *collector = d; | |
2780 | void **slot; | |
2781 | struct type *t; | |
614b3b14 | 2782 | |
f8eba3c6 | 2783 | if (SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
8e704927 | 2784 | return 1; /* Continue iterating. */ |
f8eba3c6 TT |
2785 | |
2786 | t = SYMBOL_TYPE (sym); | |
f168693b | 2787 | t = check_typedef (t); |
f8eba3c6 TT |
2788 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT |
2789 | && TYPE_CODE (t) != TYPE_CODE_UNION | |
2790 | && TYPE_CODE (t) != TYPE_CODE_NAMESPACE) | |
8e704927 | 2791 | return 1; /* Continue iterating. */ |
614b3b14 | 2792 | |
f8eba3c6 TT |
2793 | slot = htab_find_slot (collector->unique_syms, sym, INSERT); |
2794 | if (!*slot) | |
2795 | { | |
2796 | *slot = sym; | |
2797 | VEC_safe_push (symbolp, collector->symbols, sym); | |
2798 | } | |
2799 | ||
8e704927 | 2800 | return 1; /* Continue iterating. */ |
f8eba3c6 | 2801 | } |
93d91629 | 2802 | |
40e084e1 | 2803 | /* Return any symbols corresponding to CLASS_NAME in FILE_SYMTABS. */ |
93d91629 | 2804 | |
f8eba3c6 | 2805 | static VEC (symbolp) * |
ec94af83 | 2806 | lookup_prefix_sym (struct linespec_state *state, VEC (symtab_ptr) *file_symtabs, |
40e084e1 | 2807 | const char *class_name) |
93d91629 | 2808 | { |
f8eba3c6 TT |
2809 | int ix; |
2810 | struct symtab *elt; | |
2811 | struct decode_compound_collector collector; | |
2812 | struct cleanup *outer; | |
2813 | struct cleanup *cleanup; | |
17763fd9 | 2814 | |
f8eba3c6 | 2815 | collector.symbols = NULL; |
40e084e1 | 2816 | outer = make_cleanup (VEC_cleanup (symbolp), &collector.symbols); |
e0881a8e | 2817 | |
f8eba3c6 TT |
2818 | collector.unique_syms = htab_create_alloc (1, htab_hash_pointer, |
2819 | htab_eq_pointer, NULL, | |
2820 | xcalloc, xfree); | |
2821 | cleanup = make_cleanup_htab_delete (collector.unique_syms); | |
e0881a8e | 2822 | |
ec94af83 | 2823 | for (ix = 0; VEC_iterate (symtab_ptr, file_symtabs, ix, elt); ++ix) |
f8eba3c6 TT |
2824 | { |
2825 | if (elt == NULL) | |
2826 | { | |
40e084e1 | 2827 | iterate_over_all_matching_symtabs (state, class_name, STRUCT_DOMAIN, |
f8eba3c6 | 2828 | collect_one_symbol, &collector, |
481860b3 | 2829 | NULL, 0); |
40e084e1 | 2830 | iterate_over_all_matching_symtabs (state, class_name, VAR_DOMAIN, |
f8eba3c6 | 2831 | collect_one_symbol, &collector, |
481860b3 | 2832 | NULL, 0); |
f8eba3c6 TT |
2833 | } |
2834 | else | |
2835 | { | |
f8eba3c6 TT |
2836 | /* Program spaces that are executing startup should have |
2837 | been filtered out earlier. */ | |
2838 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
2839 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
4eeaa230 DE |
2840 | iterate_over_file_blocks (elt, class_name, STRUCT_DOMAIN, |
2841 | collect_one_symbol, &collector); | |
2842 | iterate_over_file_blocks (elt, class_name, VAR_DOMAIN, | |
2843 | collect_one_symbol, &collector); | |
1e5a1abc KS |
2844 | } |
2845 | } | |
2846 | ||
f8eba3c6 TT |
2847 | do_cleanups (cleanup); |
2848 | discard_cleanups (outer); | |
2849 | return collector.symbols; | |
93d91629 DC |
2850 | } |
2851 | ||
40e084e1 KS |
2852 | /* A qsort comparison function for symbols. The resulting order does |
2853 | not actually matter; we just need to be able to sort them so that | |
2854 | symbols with the same program space end up next to each other. */ | |
2855 | ||
2856 | static int | |
2857 | compare_symbols (const void *a, const void *b) | |
2858 | { | |
2859 | struct symbol * const *sa = a; | |
2860 | struct symbol * const *sb = b; | |
2861 | uintptr_t uia, uib; | |
2862 | ||
08be3fe3 DE |
2863 | uia = (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sa)); |
2864 | uib = (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sb)); | |
40e084e1 KS |
2865 | |
2866 | if (uia < uib) | |
2867 | return -1; | |
2868 | if (uia > uib) | |
2869 | return 1; | |
2870 | ||
2871 | uia = (uintptr_t) *sa; | |
2872 | uib = (uintptr_t) *sb; | |
2873 | ||
2874 | if (uia < uib) | |
2875 | return -1; | |
2876 | if (uia > uib) | |
2877 | return 1; | |
2878 | ||
2879 | return 0; | |
2880 | } | |
2881 | ||
2882 | /* Like compare_symbols but for minimal symbols. */ | |
4224873a | 2883 | |
f8eba3c6 | 2884 | static int |
40e084e1 | 2885 | compare_msymbols (const void *a, const void *b) |
4224873a | 2886 | { |
f60e2d5c TT |
2887 | const struct bound_minimal_symbol *sa = a; |
2888 | const struct bound_minimal_symbol *sb = b; | |
f8eba3c6 TT |
2889 | uintptr_t uia, uib; |
2890 | ||
001822aa TT |
2891 | uia = (uintptr_t) sa->objfile->pspace; |
2892 | uib = (uintptr_t) sa->objfile->pspace; | |
f8eba3c6 TT |
2893 | |
2894 | if (uia < uib) | |
2895 | return -1; | |
2896 | if (uia > uib) | |
2897 | return 1; | |
2898 | ||
001822aa TT |
2899 | uia = (uintptr_t) sa->minsym; |
2900 | uib = (uintptr_t) sb->minsym; | |
f8eba3c6 TT |
2901 | |
2902 | if (uia < uib) | |
2903 | return -1; | |
2904 | if (uia > uib) | |
2905 | return 1; | |
2906 | ||
2907 | return 0; | |
2908 | } | |
2909 | ||
2910 | /* Look for all the matching instances of each symbol in NAMES. Only | |
2911 | instances from PSPACE are considered; other program spaces are | |
2912 | handled by our caller. If PSPACE is NULL, then all program spaces | |
2913 | are considered. Results are stored into INFO. */ | |
2914 | ||
2915 | static void | |
2916 | add_all_symbol_names_from_pspace (struct collect_info *info, | |
2917 | struct program_space *pspace, | |
2918 | VEC (const_char_ptr) *names) | |
2919 | { | |
2920 | int ix; | |
2921 | const char *iter; | |
2922 | ||
2923 | for (ix = 0; VEC_iterate (const_char_ptr, names, ix, iter); ++ix) | |
2924 | add_matching_symbols_to_info (iter, info, pspace); | |
2925 | } | |
2926 | ||
2927 | static void | |
2928 | find_superclass_methods (VEC (typep) *superclasses, | |
2929 | const char *name, | |
2930 | VEC (const_char_ptr) **result_names) | |
2931 | { | |
2932 | int old_len = VEC_length (const_char_ptr, *result_names); | |
2933 | VEC (typep) *iter_classes; | |
2934 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
2935 | ||
2936 | iter_classes = superclasses; | |
2937 | while (1) | |
2938 | { | |
2939 | VEC (typep) *new_supers = NULL; | |
2940 | int ix; | |
2941 | struct type *t; | |
2942 | ||
2943 | make_cleanup (VEC_cleanup (typep), &new_supers); | |
2944 | for (ix = 0; VEC_iterate (typep, iter_classes, ix, t); ++ix) | |
2945 | find_methods (t, name, result_names, &new_supers); | |
2946 | ||
2947 | if (VEC_length (const_char_ptr, *result_names) != old_len | |
2948 | || VEC_empty (typep, new_supers)) | |
2949 | break; | |
4224873a | 2950 | |
f8eba3c6 TT |
2951 | iter_classes = new_supers; |
2952 | } | |
4224873a | 2953 | |
f8eba3c6 TT |
2954 | do_cleanups (cleanup); |
2955 | } | |
2956 | ||
40e084e1 KS |
2957 | /* This finds the method METHOD_NAME in the class CLASS_NAME whose type is |
2958 | given by one of the symbols in SYM_CLASSES. Matches are returned | |
2959 | in SYMBOLS (for debug symbols) and MINSYMS (for minimal symbols). */ | |
f8eba3c6 | 2960 | |
40e084e1 | 2961 | static void |
ec94af83 | 2962 | find_method (struct linespec_state *self, VEC (symtab_ptr) *file_symtabs, |
40e084e1 KS |
2963 | const char *class_name, const char *method_name, |
2964 | VEC (symbolp) *sym_classes, VEC (symbolp) **symbols, | |
f60e2d5c | 2965 | VEC (bound_minimal_symbol_d) **minsyms) |
f8eba3c6 | 2966 | { |
f8eba3c6 TT |
2967 | struct symbol *sym; |
2968 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
2969 | int ix; | |
2970 | int last_result_len; | |
2971 | VEC (typep) *superclass_vec; | |
2972 | VEC (const_char_ptr) *result_names; | |
2973 | struct collect_info info; | |
4224873a | 2974 | |
f8eba3c6 TT |
2975 | /* Sort symbols so that symbols with the same program space are next |
2976 | to each other. */ | |
2977 | qsort (VEC_address (symbolp, sym_classes), | |
2978 | VEC_length (symbolp, sym_classes), | |
2979 | sizeof (symbolp), | |
2980 | compare_symbols); | |
2981 | ||
2982 | info.state = self; | |
40e084e1 KS |
2983 | info.file_symtabs = file_symtabs; |
2984 | info.result.symbols = NULL; | |
2985 | info.result.minimal_symbols = NULL; | |
f8eba3c6 TT |
2986 | |
2987 | /* Iterate over all the types, looking for the names of existing | |
40e084e1 | 2988 | methods matching METHOD_NAME. If we cannot find a direct method in a |
f8eba3c6 TT |
2989 | given program space, then we consider inherited methods; this is |
2990 | not ideal (ideal would be to respect C++ hiding rules), but it | |
2991 | seems good enough and is what GDB has historically done. We only | |
2992 | need to collect the names because later we find all symbols with | |
2993 | those names. This loop is written in a somewhat funny way | |
2994 | because we collect data across the program space before deciding | |
2995 | what to do. */ | |
2996 | superclass_vec = NULL; | |
2997 | make_cleanup (VEC_cleanup (typep), &superclass_vec); | |
2998 | result_names = NULL; | |
2999 | make_cleanup (VEC_cleanup (const_char_ptr), &result_names); | |
3000 | last_result_len = 0; | |
3001 | for (ix = 0; VEC_iterate (symbolp, sym_classes, ix, sym); ++ix) | |
3002 | { | |
3003 | struct type *t; | |
3004 | struct program_space *pspace; | |
3005 | ||
3006 | /* Program spaces that are executing startup should have | |
3007 | been filtered out earlier. */ | |
08be3fe3 DE |
3008 | pspace = SYMTAB_PSPACE (symbol_symtab (sym)); |
3009 | gdb_assert (!pspace->executing_startup); | |
f8eba3c6 TT |
3010 | set_current_program_space (pspace); |
3011 | t = check_typedef (SYMBOL_TYPE (sym)); | |
40e084e1 | 3012 | find_methods (t, method_name, &result_names, &superclass_vec); |
f8eba3c6 TT |
3013 | |
3014 | /* Handle all items from a single program space at once; and be | |
3015 | sure not to miss the last batch. */ | |
3016 | if (ix == VEC_length (symbolp, sym_classes) - 1 | |
3017 | || (pspace | |
08be3fe3 | 3018 | != SYMTAB_PSPACE (symbol_symtab (VEC_index (symbolp, sym_classes, |
f8eba3c6 | 3019 | ix + 1))))) |
4224873a | 3020 | { |
f8eba3c6 TT |
3021 | /* If we did not find a direct implementation anywhere in |
3022 | this program space, consider superclasses. */ | |
3023 | if (VEC_length (const_char_ptr, result_names) == last_result_len) | |
40e084e1 KS |
3024 | find_superclass_methods (superclass_vec, method_name, |
3025 | &result_names); | |
f8eba3c6 TT |
3026 | |
3027 | /* We have a list of candidate symbol names, so now we | |
3028 | iterate over the symbol tables looking for all | |
3029 | matches in this pspace. */ | |
3030 | add_all_symbol_names_from_pspace (&info, pspace, result_names); | |
3031 | ||
3032 | VEC_truncate (typep, superclass_vec, 0); | |
3033 | last_result_len = VEC_length (const_char_ptr, result_names); | |
4224873a | 3034 | } |
4224873a | 3035 | } |
f8eba3c6 | 3036 | |
40e084e1 | 3037 | if (!VEC_empty (symbolp, info.result.symbols) |
f60e2d5c | 3038 | || !VEC_empty (bound_minimal_symbol_d, info.result.minimal_symbols)) |
4224873a | 3039 | { |
40e084e1 KS |
3040 | *symbols = info.result.symbols; |
3041 | *minsyms = info.result.minimal_symbols; | |
f8eba3c6 | 3042 | do_cleanups (cleanup); |
40e084e1 | 3043 | return; |
4224873a | 3044 | } |
f8eba3c6 | 3045 | |
40e084e1 KS |
3046 | /* Throw an NOT_FOUND_ERROR. This will be caught by the caller |
3047 | and other attempts to locate the symbol will be made. */ | |
3048 | throw_error (NOT_FOUND_ERROR, _("see caller, this text doesn't matter")); | |
f8eba3c6 TT |
3049 | } |
3050 | ||
3051 | \f | |
3052 | ||
3053 | /* This object is used when collecting all matching symtabs. */ | |
3054 | ||
3055 | struct symtab_collector | |
3056 | { | |
3057 | /* The result vector of symtabs. */ | |
ec94af83 | 3058 | VEC (symtab_ptr) *symtabs; |
f8eba3c6 TT |
3059 | |
3060 | /* This is used to ensure the symtabs are unique. */ | |
3061 | htab_t symtab_table; | |
3062 | }; | |
3063 | ||
3064 | /* Callback for iterate_over_symtabs. */ | |
3065 | ||
3066 | static int | |
3067 | add_symtabs_to_list (struct symtab *symtab, void *d) | |
3068 | { | |
3069 | struct symtab_collector *data = d; | |
3070 | void **slot; | |
3071 | ||
3072 | slot = htab_find_slot (data->symtab_table, symtab, INSERT); | |
3073 | if (!*slot) | |
4224873a | 3074 | { |
f8eba3c6 | 3075 | *slot = symtab; |
ec94af83 | 3076 | VEC_safe_push (symtab_ptr, data->symtabs, symtab); |
4224873a | 3077 | } |
f8eba3c6 TT |
3078 | |
3079 | return 0; | |
4224873a DC |
3080 | } |
3081 | ||
f8eba3c6 TT |
3082 | /* Given a file name, return a VEC of all matching symtabs. */ |
3083 | ||
ec94af83 | 3084 | static VEC (symtab_ptr) * |
f8eba3c6 TT |
3085 | collect_symtabs_from_filename (const char *file) |
3086 | { | |
3087 | struct symtab_collector collector; | |
3088 | struct cleanup *cleanups; | |
3089 | struct program_space *pspace; | |
3090 | ||
3091 | collector.symtabs = NULL; | |
3092 | collector.symtab_table = htab_create (1, htab_hash_pointer, htab_eq_pointer, | |
3093 | NULL); | |
3094 | cleanups = make_cleanup_htab_delete (collector.symtab_table); | |
3095 | ||
3096 | /* Find that file's data. */ | |
3097 | ALL_PSPACES (pspace) | |
3098 | { | |
3099 | if (pspace->executing_startup) | |
3100 | continue; | |
3101 | ||
3102 | set_current_program_space (pspace); | |
3103 | iterate_over_symtabs (file, add_symtabs_to_list, &collector); | |
3104 | } | |
f3c39e76 | 3105 | |
f8eba3c6 TT |
3106 | do_cleanups (cleanups); |
3107 | return collector.symtabs; | |
3108 | } | |
3109 | ||
40e084e1 | 3110 | /* Return all the symtabs associated to the FILENAME. */ |
f8eba3c6 | 3111 | |
ec94af83 | 3112 | static VEC (symtab_ptr) * |
40e084e1 KS |
3113 | symtabs_from_filename (const char *filename) |
3114 | { | |
ec94af83 | 3115 | VEC (symtab_ptr) *result; |
40e084e1 KS |
3116 | |
3117 | result = collect_symtabs_from_filename (filename); | |
f8eba3c6 | 3118 | |
ec94af83 | 3119 | if (VEC_empty (symtab_ptr, result)) |
f8eba3c6 | 3120 | { |
40e084e1 KS |
3121 | if (!have_full_symbols () && !have_partial_symbols ()) |
3122 | throw_error (NOT_FOUND_ERROR, | |
3123 | _("No symbol table is loaded. " | |
3124 | "Use the \"file\" command.")); | |
3125 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), filename); | |
f8eba3c6 TT |
3126 | } |
3127 | ||
40e084e1 | 3128 | return result; |
84fba31b | 3129 | } |
f3c39e76 | 3130 | |
40e084e1 KS |
3131 | /* Look up a function symbol named NAME in symtabs FILE_SYMTABS. Matching |
3132 | debug symbols are returned in SYMBOLS. Matching minimal symbols are | |
3133 | returned in MINSYMS. */ | |
14e91ac5 | 3134 | |
40e084e1 KS |
3135 | static void |
3136 | find_function_symbols (struct linespec_state *state, | |
ec94af83 | 3137 | VEC (symtab_ptr) *file_symtabs, const char *name, |
40e084e1 | 3138 | VEC (symbolp) **symbols, |
f60e2d5c | 3139 | VEC (bound_minimal_symbol_d) **minsyms) |
14e91ac5 | 3140 | { |
40e084e1 KS |
3141 | struct collect_info info; |
3142 | VEC (const_char_ptr) *symbol_names = NULL; | |
3143 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr), | |
3144 | &symbol_names); | |
14e91ac5 | 3145 | |
40e084e1 KS |
3146 | info.state = state; |
3147 | info.result.symbols = NULL; | |
3148 | info.result.minimal_symbols = NULL; | |
3149 | info.file_symtabs = file_symtabs; | |
e0881a8e | 3150 | |
40e084e1 | 3151 | /* Try NAME as an Objective-C selector. */ |
d7561cbb | 3152 | find_imps (name, &symbol_names); |
40e084e1 KS |
3153 | if (!VEC_empty (const_char_ptr, symbol_names)) |
3154 | add_all_symbol_names_from_pspace (&info, NULL, symbol_names); | |
3155 | else | |
3156 | add_matching_symbols_to_info (name, &info, NULL); | |
3157 | ||
3158 | do_cleanups (cleanup); | |
3159 | ||
3160 | if (VEC_empty (symbolp, info.result.symbols)) | |
3161 | { | |
3162 | VEC_free (symbolp, info.result.symbols); | |
3163 | *symbols = NULL; | |
14e91ac5 DC |
3164 | } |
3165 | else | |
40e084e1 KS |
3166 | *symbols = info.result.symbols; |
3167 | ||
f60e2d5c | 3168 | if (VEC_empty (bound_minimal_symbol_d, info.result.minimal_symbols)) |
14e91ac5 | 3169 | { |
f60e2d5c | 3170 | VEC_free (bound_minimal_symbol_d, info.result.minimal_symbols); |
40e084e1 KS |
3171 | *minsyms = NULL; |
3172 | } | |
3173 | else | |
3174 | *minsyms = info.result.minimal_symbols; | |
3175 | } | |
3176 | ||
3177 | /* Find all symbols named NAME in FILE_SYMTABS, returning debug symbols | |
3178 | in SYMBOLS and minimal symbols in MINSYMS. */ | |
14e91ac5 | 3179 | |
b1ae631a | 3180 | static void |
40e084e1 | 3181 | find_linespec_symbols (struct linespec_state *state, |
ec94af83 | 3182 | VEC (symtab_ptr) *file_symtabs, |
40e084e1 KS |
3183 | const char *name, |
3184 | VEC (symbolp) **symbols, | |
f60e2d5c | 3185 | VEC (bound_minimal_symbol_d) **minsyms) |
40e084e1 | 3186 | { |
40e084e1 | 3187 | struct cleanup *cleanup; |
cc81e1c6 DE |
3188 | char *canon; |
3189 | const char *lookup_name; | |
f8eba3c6 | 3190 | |
40e084e1 KS |
3191 | cleanup = demangle_for_lookup (name, state->language->la_language, |
3192 | &lookup_name); | |
3193 | if (state->language->la_language == language_ada) | |
3194 | { | |
3195 | /* In Ada, the symbol lookups are performed using the encoded | |
3196 | name rather than the demangled name. */ | |
3197 | lookup_name = ada_name_for_lookup (name); | |
3198 | make_cleanup (xfree, (void *) lookup_name); | |
3199 | } | |
31aba06f | 3200 | |
40e084e1 KS |
3201 | canon = cp_canonicalize_string_no_typedefs (lookup_name); |
3202 | if (canon != NULL) | |
3203 | { | |
3204 | lookup_name = canon; | |
e61727ab | 3205 | make_cleanup (xfree, canon); |
40e084e1 | 3206 | } |
f8eba3c6 | 3207 | |
cc81e1c6 DE |
3208 | /* It's important to not call expand_symtabs_matching unnecessarily |
3209 | as it can really slow things down (by unnecessarily expanding | |
3210 | potentially 1000s of symtabs, which when debugging some apps can | |
3211 | cost 100s of seconds). Avoid this to some extent by *first* calling | |
3212 | find_function_symbols, and only if that doesn't find anything | |
3213 | *then* call find_method. This handles two important cases: | |
3214 | 1) break (anonymous namespace)::foo | |
3215 | 2) break class::method where method is in class (and not a baseclass) */ | |
14e91ac5 | 3216 | |
cc81e1c6 DE |
3217 | find_function_symbols (state, file_symtabs, lookup_name, |
3218 | symbols, minsyms); | |
14e91ac5 | 3219 | |
cc81e1c6 DE |
3220 | /* If we were unable to locate a symbol of the same name, try dividing |
3221 | the name into class and method names and searching the class and its | |
3222 | baseclasses. */ | |
3223 | if (VEC_empty (symbolp, *symbols) | |
f60e2d5c | 3224 | && VEC_empty (bound_minimal_symbol_d, *minsyms)) |
40e084e1 | 3225 | { |
cc81e1c6 DE |
3226 | char *klass, *method; |
3227 | const char *last, *p, *scope_op; | |
3228 | VEC (symbolp) *classes; | |
14e91ac5 | 3229 | |
cc81e1c6 DE |
3230 | /* See if we can find a scope operator and break this symbol |
3231 | name into namespaces${SCOPE_OPERATOR}class_name and method_name. */ | |
3232 | scope_op = "::"; | |
3233 | p = find_toplevel_string (lookup_name, scope_op); | |
3234 | if (p == NULL) | |
3235 | { | |
3236 | /* No C++ scope operator. Try Java. */ | |
3237 | scope_op = "."; | |
3238 | p = find_toplevel_string (lookup_name, scope_op); | |
3239 | } | |
14e91ac5 | 3240 | |
cc81e1c6 DE |
3241 | last = NULL; |
3242 | while (p != NULL) | |
f8eba3c6 | 3243 | { |
cc81e1c6 DE |
3244 | last = p; |
3245 | p = find_toplevel_string (p + strlen (scope_op), scope_op); | |
f8eba3c6 | 3246 | } |
14e91ac5 | 3247 | |
cc81e1c6 DE |
3248 | /* If no scope operator was found, there is nothing more we can do; |
3249 | we already attempted to lookup the entire name as a symbol | |
3250 | and failed. */ | |
3251 | if (last == NULL) | |
40e084e1 KS |
3252 | { |
3253 | do_cleanups (cleanup); | |
3254 | return; | |
3255 | } | |
cc81e1c6 DE |
3256 | |
3257 | /* LOOKUP_NAME points to the class name. | |
3258 | LAST points to the method name. */ | |
3259 | klass = xmalloc ((last - lookup_name + 1) * sizeof (char)); | |
3260 | make_cleanup (xfree, klass); | |
3261 | strncpy (klass, lookup_name, last - lookup_name); | |
3262 | klass[last - lookup_name] = '\0'; | |
3263 | ||
3264 | /* Skip past the scope operator. */ | |
3265 | last += strlen (scope_op); | |
3266 | method = xmalloc ((strlen (last) + 1) * sizeof (char)); | |
3267 | make_cleanup (xfree, method); | |
3268 | strcpy (method, last); | |
3269 | ||
3270 | /* Find a list of classes named KLASS. */ | |
3271 | classes = lookup_prefix_sym (state, file_symtabs, klass); | |
3272 | make_cleanup (VEC_cleanup (symbolp), &classes); | |
3273 | ||
3274 | if (!VEC_empty (symbolp, classes)) | |
3275 | { | |
3276 | /* Now locate a list of suitable methods named METHOD. */ | |
492d29ea | 3277 | TRY |
cc81e1c6 DE |
3278 | { |
3279 | find_method (state, file_symtabs, klass, method, classes, | |
3280 | symbols, minsyms); | |
3281 | } | |
3282 | ||
3283 | /* If successful, we're done. If NOT_FOUND_ERROR | |
3284 | was not thrown, rethrow the exception that we did get. */ | |
492d29ea | 3285 | CATCH (except, RETURN_MASK_ERROR) |
7556d4a4 PA |
3286 | { |
3287 | if (except.error != NOT_FOUND_ERROR) | |
3288 | throw_exception (except); | |
3289 | } | |
492d29ea | 3290 | END_CATCH |
cc81e1c6 | 3291 | } |
f8eba3c6 | 3292 | } |
14e91ac5 | 3293 | |
cc81e1c6 | 3294 | do_cleanups (cleanup); |
14e91ac5 DC |
3295 | } |
3296 | ||
40e084e1 KS |
3297 | /* Return all labels named NAME in FUNCTION_SYMBOLS. Return the |
3298 | actual function symbol in which the label was found in LABEL_FUNC_RET. */ | |
0f5238ed | 3299 | |
40e084e1 KS |
3300 | static VEC (symbolp) * |
3301 | find_label_symbols (struct linespec_state *self, | |
3302 | VEC (symbolp) *function_symbols, | |
3303 | VEC (symbolp) **label_funcs_ret, const char *name) | |
0f5238ed | 3304 | { |
f8eba3c6 | 3305 | int ix; |
3977b71f | 3306 | const struct block *block; |
40e084e1 KS |
3307 | struct symbol *sym; |
3308 | struct symbol *fn_sym; | |
3309 | VEC (symbolp) *result = NULL; | |
9ef07c8c | 3310 | |
f8eba3c6 | 3311 | if (function_symbols == NULL) |
9ef07c8c | 3312 | { |
f8eba3c6 | 3313 | set_current_program_space (self->program_space); |
4eeaa230 | 3314 | block = get_current_search_block (); |
f8eba3c6 | 3315 | |
9ef07c8c TT |
3316 | for (; |
3317 | block && !BLOCK_FUNCTION (block); | |
3318 | block = BLOCK_SUPERBLOCK (block)) | |
3319 | ; | |
3320 | if (!block) | |
40e084e1 | 3321 | return NULL; |
f8eba3c6 TT |
3322 | fn_sym = BLOCK_FUNCTION (block); |
3323 | ||
d12307c1 | 3324 | sym = lookup_symbol (name, block, LABEL_DOMAIN, 0).symbol; |
f8eba3c6 | 3325 | |
40e084e1 KS |
3326 | if (sym != NULL) |
3327 | { | |
3328 | VEC_safe_push (symbolp, result, sym); | |
3329 | VEC_safe_push (symbolp, *label_funcs_ret, fn_sym); | |
3330 | } | |
3331 | } | |
3332 | else | |
3333 | { | |
3334 | for (ix = 0; | |
3335 | VEC_iterate (symbolp, function_symbols, ix, fn_sym); ++ix) | |
f8eba3c6 | 3336 | { |
08be3fe3 | 3337 | set_current_program_space (SYMTAB_PSPACE (symbol_symtab (fn_sym))); |
40e084e1 | 3338 | block = SYMBOL_BLOCK_VALUE (fn_sym); |
d12307c1 | 3339 | sym = lookup_symbol (name, block, LABEL_DOMAIN, 0).symbol; |
40e084e1 KS |
3340 | |
3341 | if (sym != NULL) | |
3342 | { | |
3343 | VEC_safe_push (symbolp, result, sym); | |
3344 | VEC_safe_push (symbolp, *label_funcs_ret, fn_sym); | |
3345 | } | |
f8eba3c6 | 3346 | } |
40e084e1 | 3347 | } |
f8eba3c6 | 3348 | |
40e084e1 KS |
3349 | return result; |
3350 | } | |
f8eba3c6 | 3351 | |
40e084e1 KS |
3352 | \f |
3353 | ||
3354 | /* A helper for create_sals_line_offset that handles the 'list_mode' case. */ | |
3355 | ||
3356 | static void | |
3357 | decode_digits_list_mode (struct linespec_state *self, | |
3358 | linespec_p ls, | |
3359 | struct symtabs_and_lines *values, | |
3360 | struct symtab_and_line val) | |
3361 | { | |
3362 | int ix; | |
3363 | struct symtab *elt; | |
3364 | ||
3365 | gdb_assert (self->list_mode); | |
3366 | ||
ec94af83 | 3367 | for (ix = 0; VEC_iterate (symtab_ptr, ls->file_symtabs, ix, elt); |
40e084e1 KS |
3368 | ++ix) |
3369 | { | |
3370 | /* The logic above should ensure this. */ | |
3371 | gdb_assert (elt != NULL); | |
3372 | ||
3373 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
3374 | ||
3375 | /* Simplistic search just for the list command. */ | |
3376 | val.symtab = find_line_symtab (elt, val.line, NULL, NULL); | |
3377 | if (val.symtab == NULL) | |
3378 | val.symtab = elt; | |
3379 | val.pspace = SYMTAB_PSPACE (elt); | |
3380 | val.pc = 0; | |
3381 | val.explicit_line = 1; | |
3382 | ||
66f1999b | 3383 | add_sal_to_sals (self, values, &val, NULL, 0); |
f8eba3c6 | 3384 | } |
40e084e1 | 3385 | } |
f8eba3c6 | 3386 | |
40e084e1 KS |
3387 | /* A helper for create_sals_line_offset that iterates over the symtabs, |
3388 | adding lines to the VEC. */ | |
3389 | ||
3390 | static void | |
3391 | decode_digits_ordinary (struct linespec_state *self, | |
3392 | linespec_p ls, | |
3393 | int line, | |
3394 | struct symtabs_and_lines *sals, | |
3395 | struct linetable_entry **best_entry) | |
3396 | { | |
3397 | int ix; | |
3398 | struct symtab *elt; | |
f8eba3c6 | 3399 | |
ec94af83 | 3400 | for (ix = 0; VEC_iterate (symtab_ptr, ls->file_symtabs, ix, elt); ++ix) |
f8eba3c6 | 3401 | { |
40e084e1 KS |
3402 | int i; |
3403 | VEC (CORE_ADDR) *pcs; | |
3404 | CORE_ADDR pc; | |
3405 | ||
3406 | /* The logic above should ensure this. */ | |
3407 | gdb_assert (elt != NULL); | |
f8eba3c6 | 3408 | |
40e084e1 | 3409 | set_current_program_space (SYMTAB_PSPACE (elt)); |
f8eba3c6 | 3410 | |
40e084e1 KS |
3411 | pcs = find_pcs_for_symtab_line (elt, line, best_entry); |
3412 | for (i = 0; VEC_iterate (CORE_ADDR, pcs, i, pc); ++i) | |
f8eba3c6 TT |
3413 | { |
3414 | struct symtab_and_line sal; | |
40e084e1 KS |
3415 | |
3416 | init_sal (&sal); | |
3417 | sal.pspace = SYMTAB_PSPACE (elt); | |
3418 | sal.symtab = elt; | |
3419 | sal.line = line; | |
3420 | sal.pc = pc; | |
3421 | add_sal_to_sals_basic (sals, &sal); | |
f8eba3c6 | 3422 | } |
40e084e1 KS |
3423 | |
3424 | VEC_free (CORE_ADDR, pcs); | |
f8eba3c6 | 3425 | } |
40e084e1 KS |
3426 | } |
3427 | ||
3428 | \f | |
3429 | ||
3430 | /* Return the line offset represented by VARIABLE. */ | |
3431 | ||
3432 | static struct line_offset | |
3433 | linespec_parse_variable (struct linespec_state *self, const char *variable) | |
3434 | { | |
3435 | int index = 0; | |
3436 | const char *p; | |
3437 | struct line_offset offset = {0, LINE_OFFSET_NONE}; | |
f8eba3c6 | 3438 | |
40e084e1 KS |
3439 | p = (variable[1] == '$') ? variable + 2 : variable + 1; |
3440 | if (*p == '$') | |
3441 | ++p; | |
3442 | while (*p >= '0' && *p <= '9') | |
3443 | ++p; | |
3444 | if (!*p) /* Reached end of token without hitting non-digit. */ | |
f8eba3c6 | 3445 | { |
40e084e1 KS |
3446 | /* We have a value history reference. */ |
3447 | struct value *val_history; | |
f8eba3c6 | 3448 | |
40e084e1 KS |
3449 | sscanf ((variable[1] == '$') ? variable + 2 : variable + 1, "%d", &index); |
3450 | val_history | |
3451 | = access_value_history ((variable[1] == '$') ? -index : index); | |
3452 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
3453 | error (_("History values used in line " | |
3454 | "specs must have integer values.")); | |
3455 | offset.offset = value_as_long (val_history); | |
3456 | } | |
3457 | else | |
3458 | { | |
3459 | /* Not all digits -- may be user variable/function or a | |
3460 | convenience variable. */ | |
3461 | LONGEST valx; | |
3462 | struct internalvar *ivar; | |
3463 | ||
3464 | /* Try it as a convenience variable. If it is not a convenience | |
3465 | variable, return and allow normal symbol lookup to occur. */ | |
3466 | ivar = lookup_only_internalvar (variable + 1); | |
3467 | if (ivar == NULL) | |
3468 | /* No internal variable with that name. Mark the offset | |
3469 | as unknown to allow the name to be looked up as a symbol. */ | |
3470 | offset.sign = LINE_OFFSET_UNKNOWN; | |
3471 | else | |
3472 | { | |
3473 | /* We found a valid variable name. If it is not an integer, | |
3474 | throw an error. */ | |
3475 | if (!get_internalvar_integer (ivar, &valx)) | |
3476 | error (_("Convenience variables used in line " | |
3477 | "specs must have integer values.")); | |
3478 | else | |
3479 | offset.offset = valx; | |
3480 | } | |
f8eba3c6 TT |
3481 | } |
3482 | ||
40e084e1 | 3483 | return offset; |
f8eba3c6 | 3484 | } |
40e084e1 | 3485 | \f |
f8eba3c6 TT |
3486 | |
3487 | /* A callback used to possibly add a symbol to the results. */ | |
3488 | ||
3489 | static int | |
3490 | collect_symbols (struct symbol *sym, void *data) | |
3491 | { | |
3492 | struct collect_info *info = data; | |
f8eba3c6 | 3493 | |
40e084e1 KS |
3494 | /* In list mode, add all matching symbols, regardless of class. |
3495 | This allows the user to type "list a_global_variable". */ | |
3496 | if (SYMBOL_CLASS (sym) == LOC_BLOCK || info->state->list_mode) | |
3497 | VEC_safe_push (symbolp, info->result.symbols, sym); | |
8e704927 | 3498 | return 1; /* Continue iterating. */ |
f8eba3c6 TT |
3499 | } |
3500 | ||
40e084e1 | 3501 | /* We've found a minimal symbol MSYMBOL in OBJFILE to associate with our |
6e22494e JK |
3502 | linespec; return the SAL in RESULT. This function should return SALs |
3503 | matching those from find_function_start_sal, otherwise false | |
3504 | multiple-locations breakpoints could be placed. */ | |
f8eba3c6 TT |
3505 | |
3506 | static void | |
3507 | minsym_found (struct linespec_state *self, struct objfile *objfile, | |
3508 | struct minimal_symbol *msymbol, | |
3509 | struct symtabs_and_lines *result) | |
3510 | { | |
3511 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
3512 | CORE_ADDR pc; | |
3513 | struct symtab_and_line sal; | |
3514 | ||
77e371c0 | 3515 | sal = find_pc_sect_line (MSYMBOL_VALUE_ADDRESS (objfile, msymbol), |
f8eba3c6 | 3516 | (struct obj_section *) 0, 0); |
efd66ac6 | 3517 | sal.section = MSYMBOL_OBJ_SECTION (objfile, msymbol); |
f8eba3c6 TT |
3518 | |
3519 | /* The minimal symbol might point to a function descriptor; | |
3520 | resolve it to the actual code address instead. */ | |
3521 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, ¤t_target); | |
3522 | if (pc != sal.pc) | |
3523 | sal = find_pc_sect_line (pc, NULL, 0); | |
3524 | ||
3525 | if (self->funfirstline) | |
6e22494e JK |
3526 | { |
3527 | if (sal.symtab != NULL | |
3528 | && (COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (sal.symtab)) | |
3529 | || SYMTAB_LANGUAGE (sal.symtab) == language_asm)) | |
3530 | { | |
3531 | /* If gdbarch_convert_from_func_ptr_addr does not apply then | |
3532 | sal.SECTION, sal.LINE&co. will stay correct from above. | |
3533 | If gdbarch_convert_from_func_ptr_addr applies then | |
3534 | sal.SECTION is cleared from above and sal.LINE&co. will | |
3535 | stay correct from the last find_pc_sect_line above. */ | |
3536 | sal.pc = MSYMBOL_VALUE_ADDRESS (objfile, msymbol); | |
3537 | sal.pc = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, | |
3538 | ¤t_target); | |
3539 | } | |
3540 | else | |
3541 | skip_prologue_sal (&sal); | |
3542 | } | |
f8eba3c6 | 3543 | |
07fea4b4 | 3544 | if (maybe_add_address (self->addr_set, objfile->pspace, sal.pc)) |
efd66ac6 | 3545 | add_sal_to_sals (self, result, &sal, MSYMBOL_NATURAL_NAME (msymbol), 0); |
f8eba3c6 TT |
3546 | } |
3547 | ||
39b856a4 TT |
3548 | /* A helper struct to pass some data through |
3549 | iterate_over_minimal_symbols. */ | |
3550 | ||
3551 | struct collect_minsyms | |
3552 | { | |
3553 | /* The objfile we're examining. */ | |
3554 | struct objfile *objfile; | |
3555 | ||
87186c6a MMN |
3556 | /* Only search the given symtab, or NULL to search for all symbols. */ |
3557 | struct symtab *symtab; | |
3558 | ||
39b856a4 TT |
3559 | /* The funfirstline setting from the initial call. */ |
3560 | int funfirstline; | |
3561 | ||
095bcf5e JB |
3562 | /* The list_mode setting from the initial call. */ |
3563 | int list_mode; | |
3564 | ||
39b856a4 | 3565 | /* The resulting symbols. */ |
f60e2d5c | 3566 | VEC (bound_minimal_symbol_d) *msyms; |
39b856a4 TT |
3567 | }; |
3568 | ||
3569 | /* A helper function to classify a minimal_symbol_type according to | |
3570 | priority. */ | |
3571 | ||
3572 | static int | |
3573 | classify_mtype (enum minimal_symbol_type t) | |
3574 | { | |
3575 | switch (t) | |
f8eba3c6 | 3576 | { |
39b856a4 TT |
3577 | case mst_file_text: |
3578 | case mst_file_data: | |
3579 | case mst_file_bss: | |
3580 | /* Intermediate priority. */ | |
3581 | return 1; | |
3582 | ||
3583 | case mst_solib_trampoline: | |
3584 | /* Lowest priority. */ | |
3585 | return 2; | |
3586 | ||
3587 | default: | |
3588 | /* Highest priority. */ | |
3589 | return 0; | |
f8eba3c6 | 3590 | } |
39b856a4 TT |
3591 | } |
3592 | ||
3593 | /* Callback for qsort that sorts symbols by priority. */ | |
3594 | ||
3595 | static int | |
3596 | compare_msyms (const void *a, const void *b) | |
3597 | { | |
f60e2d5c TT |
3598 | const bound_minimal_symbol_d *moa = a; |
3599 | const bound_minimal_symbol_d *mob = b; | |
39b856a4 TT |
3600 | enum minimal_symbol_type ta = MSYMBOL_TYPE (moa->minsym); |
3601 | enum minimal_symbol_type tb = MSYMBOL_TYPE (mob->minsym); | |
3602 | ||
3603 | return classify_mtype (ta) - classify_mtype (tb); | |
3604 | } | |
3605 | ||
3606 | /* Callback for iterate_over_minimal_symbols that adds the symbol to | |
3607 | the result. */ | |
3608 | ||
3609 | static void | |
3610 | add_minsym (struct minimal_symbol *minsym, void *d) | |
3611 | { | |
3612 | struct collect_minsyms *info = d; | |
f60e2d5c | 3613 | bound_minimal_symbol_d mo; |
39b856a4 | 3614 | |
77e371c0 TT |
3615 | mo.minsym = minsym; |
3616 | mo.objfile = info->objfile; | |
3617 | ||
87186c6a MMN |
3618 | if (info->symtab != NULL) |
3619 | { | |
3620 | CORE_ADDR pc; | |
3621 | struct symtab_and_line sal; | |
3622 | struct gdbarch *gdbarch = get_objfile_arch (info->objfile); | |
3623 | ||
3624 | sal = find_pc_sect_line (MSYMBOL_VALUE_ADDRESS (info->objfile, minsym), | |
3625 | NULL, 0); | |
3626 | sal.section = MSYMBOL_OBJ_SECTION (info->objfile, minsym); | |
3627 | pc | |
3628 | = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, ¤t_target); | |
3629 | if (pc != sal.pc) | |
3630 | sal = find_pc_sect_line (pc, NULL, 0); | |
3631 | ||
3632 | if (info->symtab != sal.symtab) | |
3633 | return; | |
3634 | } | |
3635 | ||
095bcf5e JB |
3636 | /* Exclude data symbols when looking for breakpoint locations. */ |
3637 | if (!info->list_mode) | |
3638 | switch (minsym->type) | |
3639 | { | |
3640 | case mst_slot_got_plt: | |
3641 | case mst_data: | |
3642 | case mst_bss: | |
3643 | case mst_abs: | |
3644 | case mst_file_data: | |
3645 | case mst_file_bss: | |
1a2da5ee JB |
3646 | { |
3647 | /* Make sure this minsym is not a function descriptor | |
3648 | before we decide to discard it. */ | |
df6d5441 | 3649 | struct gdbarch *gdbarch = get_objfile_arch (info->objfile); |
1a2da5ee | 3650 | CORE_ADDR addr = gdbarch_convert_from_func_ptr_addr |
77e371c0 | 3651 | (gdbarch, BMSYMBOL_VALUE_ADDRESS (mo), |
1a2da5ee JB |
3652 | ¤t_target); |
3653 | ||
77e371c0 | 3654 | if (addr == BMSYMBOL_VALUE_ADDRESS (mo)) |
1a2da5ee JB |
3655 | return; |
3656 | } | |
095bcf5e JB |
3657 | } |
3658 | ||
f60e2d5c | 3659 | VEC_safe_push (bound_minimal_symbol_d, info->msyms, &mo); |
f8eba3c6 TT |
3660 | } |
3661 | ||
87186c6a | 3662 | /* Search for minimal symbols called NAME. If SEARCH_PSPACE |
f8eba3c6 | 3663 | is not NULL, the search is restricted to just that program |
87186c6a MMN |
3664 | space. |
3665 | ||
3666 | If SYMTAB is NULL, search all objfiles, otherwise | |
3667 | restrict results to the given SYMTAB. */ | |
f8eba3c6 TT |
3668 | |
3669 | static void | |
3670 | search_minsyms_for_name (struct collect_info *info, const char *name, | |
87186c6a MMN |
3671 | struct program_space *search_pspace, |
3672 | struct symtab *symtab) | |
f8eba3c6 | 3673 | { |
87186c6a MMN |
3674 | struct collect_minsyms local; |
3675 | struct cleanup *cleanup; | |
f8eba3c6 | 3676 | |
87186c6a MMN |
3677 | memset (&local, 0, sizeof (local)); |
3678 | local.funfirstline = info->state->funfirstline; | |
3679 | local.list_mode = info->state->list_mode; | |
3680 | local.symtab = symtab; | |
39b856a4 | 3681 | |
87186c6a | 3682 | cleanup = make_cleanup (VEC_cleanup (bound_minimal_symbol_d), &local.msyms); |
f8eba3c6 | 3683 | |
87186c6a MMN |
3684 | if (symtab == NULL) |
3685 | { | |
3686 | struct program_space *pspace; | |
f8eba3c6 | 3687 | |
87186c6a MMN |
3688 | ALL_PSPACES (pspace) |
3689 | { | |
3690 | struct objfile *objfile; | |
39b856a4 | 3691 | |
87186c6a MMN |
3692 | if (search_pspace != NULL && search_pspace != pspace) |
3693 | continue; | |
3694 | if (pspace->executing_startup) | |
3695 | continue; | |
39b856a4 | 3696 | |
87186c6a MMN |
3697 | set_current_program_space (pspace); |
3698 | ||
3699 | ALL_OBJFILES (objfile) | |
3700 | { | |
3701 | local.objfile = objfile; | |
3702 | iterate_over_minimal_symbols (objfile, name, add_minsym, &local); | |
3703 | } | |
3704 | } | |
3705 | } | |
3706 | else | |
f8eba3c6 | 3707 | { |
87186c6a MMN |
3708 | if (search_pspace == NULL || SYMTAB_PSPACE (symtab) == search_pspace) |
3709 | { | |
3710 | set_current_program_space (SYMTAB_PSPACE (symtab)); | |
3711 | local.objfile = SYMTAB_OBJFILE(symtab); | |
3712 | iterate_over_minimal_symbols (local.objfile, name, add_minsym, | |
3713 | &local); | |
3714 | } | |
9ef07c8c | 3715 | } |
39b856a4 | 3716 | |
f60e2d5c | 3717 | if (!VEC_empty (bound_minimal_symbol_d, local.msyms)) |
39b856a4 TT |
3718 | { |
3719 | int classification; | |
3720 | int ix; | |
f60e2d5c | 3721 | bound_minimal_symbol_d *item; |
39b856a4 | 3722 | |
f60e2d5c TT |
3723 | qsort (VEC_address (bound_minimal_symbol_d, local.msyms), |
3724 | VEC_length (bound_minimal_symbol_d, local.msyms), | |
3725 | sizeof (bound_minimal_symbol_d), | |
39b856a4 TT |
3726 | compare_msyms); |
3727 | ||
3728 | /* Now the minsyms are in classification order. So, we walk | |
3729 | over them and process just the minsyms with the same | |
3730 | classification as the very first minsym in the list. */ | |
f60e2d5c | 3731 | item = VEC_index (bound_minimal_symbol_d, local.msyms, 0); |
39b856a4 TT |
3732 | classification = classify_mtype (MSYMBOL_TYPE (item->minsym)); |
3733 | ||
3734 | for (ix = 0; | |
f60e2d5c | 3735 | VEC_iterate (bound_minimal_symbol_d, local.msyms, ix, item); |
39b856a4 TT |
3736 | ++ix) |
3737 | { | |
3738 | if (classify_mtype (MSYMBOL_TYPE (item->minsym)) != classification) | |
3739 | break; | |
3740 | ||
f60e2d5c | 3741 | VEC_safe_push (bound_minimal_symbol_d, |
40e084e1 | 3742 | info->result.minimal_symbols, item); |
39b856a4 TT |
3743 | } |
3744 | } | |
3745 | ||
3746 | do_cleanups (cleanup); | |
f8eba3c6 TT |
3747 | } |
3748 | ||
3749 | /* A helper function to add all symbols matching NAME to INFO. If | |
3750 | PSPACE is not NULL, the search is restricted to just that program | |
3751 | space. */ | |
0f5238ed | 3752 | |
f8eba3c6 TT |
3753 | static void |
3754 | add_matching_symbols_to_info (const char *name, | |
3755 | struct collect_info *info, | |
3756 | struct program_space *pspace) | |
3757 | { | |
3758 | int ix; | |
3759 | struct symtab *elt; | |
0f5238ed | 3760 | |
ec94af83 | 3761 | for (ix = 0; VEC_iterate (symtab_ptr, info->file_symtabs, ix, elt); ++ix) |
f8eba3c6 | 3762 | { |
f8eba3c6 TT |
3763 | if (elt == NULL) |
3764 | { | |
40e084e1 | 3765 | iterate_over_all_matching_symtabs (info->state, name, VAR_DOMAIN, |
f8eba3c6 | 3766 | collect_symbols, info, |
481860b3 | 3767 | pspace, 1); |
87186c6a | 3768 | search_minsyms_for_name (info, name, pspace, NULL); |
f8eba3c6 TT |
3769 | } |
3770 | else if (pspace == NULL || pspace == SYMTAB_PSPACE (elt)) | |
3771 | { | |
87186c6a MMN |
3772 | int prev_len = VEC_length (symbolp, info->result.symbols); |
3773 | ||
f8eba3c6 TT |
3774 | /* Program spaces that are executing startup should have |
3775 | been filtered out earlier. */ | |
3776 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
3777 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
4eeaa230 DE |
3778 | iterate_over_file_blocks (elt, name, VAR_DOMAIN, |
3779 | collect_symbols, info); | |
87186c6a MMN |
3780 | |
3781 | /* If no new symbols were found in this iteration and this symtab | |
3782 | is in assembler, we might actually be looking for a label for | |
3783 | which we don't have debug info. Check for a minimal symbol in | |
3784 | this case. */ | |
3785 | if (prev_len == VEC_length (symbolp, info->result.symbols) | |
3786 | && elt->language == language_asm) | |
3787 | search_minsyms_for_name (info, name, pspace, elt); | |
f8eba3c6 TT |
3788 | } |
3789 | } | |
0f5238ed TT |
3790 | } |
3791 | ||
14e91ac5 DC |
3792 | \f |
3793 | ||
413dad4d DC |
3794 | /* Now come some functions that are called from multiple places within |
3795 | decode_line_1. */ | |
3796 | ||
f8eba3c6 TT |
3797 | static int |
3798 | symbol_to_sal (struct symtab_and_line *result, | |
3799 | int funfirstline, struct symbol *sym) | |
413dad4d | 3800 | { |
413dad4d | 3801 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
50641945 | 3802 | { |
f8eba3c6 TT |
3803 | *result = find_function_start_sal (sym, funfirstline); |
3804 | return 1; | |
50641945 | 3805 | } |
413dad4d DC |
3806 | else |
3807 | { | |
62853458 | 3808 | if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0) |
413dad4d | 3809 | { |
f8eba3c6 | 3810 | init_sal (result); |
08be3fe3 | 3811 | result->symtab = symbol_symtab (sym); |
f8eba3c6 TT |
3812 | result->line = SYMBOL_LINE (sym); |
3813 | result->pc = SYMBOL_VALUE_ADDRESS (sym); | |
08be3fe3 | 3814 | result->pspace = SYMTAB_PSPACE (result->symtab); |
f8eba3c6 TT |
3815 | result->explicit_pc = 1; |
3816 | return 1; | |
413dad4d | 3817 | } |
62853458 | 3818 | else if (funfirstline) |
dcf9f4ab | 3819 | { |
f8eba3c6 | 3820 | /* Nothing. */ |
dcf9f4ab | 3821 | } |
62853458 TT |
3822 | else if (SYMBOL_LINE (sym) != 0) |
3823 | { | |
3824 | /* We know its line number. */ | |
f8eba3c6 | 3825 | init_sal (result); |
08be3fe3 | 3826 | result->symtab = symbol_symtab (sym); |
f8eba3c6 | 3827 | result->line = SYMBOL_LINE (sym); |
08be3fe3 | 3828 | result->pspace = SYMTAB_PSPACE (result->symtab); |
f8eba3c6 | 3829 | return 1; |
62853458 | 3830 | } |
413dad4d | 3831 | } |
f8eba3c6 TT |
3832 | |
3833 | return 0; | |
413dad4d | 3834 | } |
50641945 | 3835 | |
f8eba3c6 | 3836 | /* See the comment in linespec.h. */ |
50641945 | 3837 | |
f8eba3c6 TT |
3838 | void |
3839 | init_linespec_result (struct linespec_result *lr) | |
413dad4d | 3840 | { |
f8eba3c6 TT |
3841 | memset (lr, 0, sizeof (*lr)); |
3842 | } | |
413dad4d | 3843 | |
f8eba3c6 | 3844 | /* See the comment in linespec.h. */ |
bccdca4a | 3845 | |
f8eba3c6 TT |
3846 | void |
3847 | destroy_linespec_result (struct linespec_result *ls) | |
3848 | { | |
3849 | int i; | |
3850 | struct linespec_sals *lsal; | |
bccdca4a | 3851 | |
f00aae0f | 3852 | delete_event_location (ls->location); |
f8eba3c6 TT |
3853 | for (i = 0; VEC_iterate (linespec_sals, ls->sals, i, lsal); ++i) |
3854 | { | |
3855 | xfree (lsal->canonical); | |
3856 | xfree (lsal->sals.sals); | |
3857 | } | |
3858 | VEC_free (linespec_sals, ls->sals); | |
3859 | } | |
e48883f7 | 3860 | |
f8eba3c6 TT |
3861 | /* Cleanup function for a linespec_result. */ |
3862 | ||
3863 | static void | |
3864 | cleanup_linespec_result (void *a) | |
3865 | { | |
3866 | destroy_linespec_result (a); | |
50641945 | 3867 | } |
7efd8fc2 | 3868 | |
f8eba3c6 TT |
3869 | /* See the comment in linespec.h. */ |
3870 | ||
3871 | struct cleanup * | |
3872 | make_cleanup_destroy_linespec_result (struct linespec_result *ls) | |
7efd8fc2 | 3873 | { |
f8eba3c6 | 3874 | return make_cleanup (cleanup_linespec_result, ls); |
7efd8fc2 | 3875 | } |