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50641945 | 1 | /* Parser for linespec for the GNU debugger, GDB. |
05ff989b | 2 | |
618f726f | 3 | Copyright (C) 1986-2016 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 | 67 | |
40e084e1 KS |
68 | /* A linespec. Elements of this structure are filled in by a parser |
69 | (either parse_linespec or some other function). The structure is | |
70 | then converted into SALs by convert_linespec_to_sals. */ | |
71 | ||
72 | struct linespec | |
73 | { | |
00e52e53 | 74 | /* An explicit location describing the SaLs. */ |
67994074 | 75 | struct explicit_location explicit_loc; |
40e084e1 KS |
76 | |
77 | /* The list of symtabs to search to which to limit the search. May not | |
00e52e53 KS |
78 | be NULL. If explicit.SOURCE_FILENAME is NULL (no user-specified |
79 | filename), FILE_SYMTABS should contain one single NULL member. This | |
80 | will cause the code to use the default symtab. */ | |
ec94af83 | 81 | VEC (symtab_ptr) *file_symtabs; |
40e084e1 | 82 | |
40e084e1 KS |
83 | /* A list of matching function symbols and minimal symbols. Both lists |
84 | may be NULL if no matching symbols were found. */ | |
85 | VEC (symbolp) *function_symbols; | |
f60e2d5c | 86 | VEC (bound_minimal_symbol_d) *minimal_symbols; |
40e084e1 | 87 | |
40e084e1 KS |
88 | /* A structure of matching label symbols and the corresponding |
89 | function symbol in which the label was found. Both may be NULL | |
90 | or both must be non-NULL. */ | |
91 | struct | |
92 | { | |
93 | VEC (symbolp) *label_symbols; | |
94 | VEC (symbolp) *function_symbols; | |
95 | } labels; | |
40e084e1 KS |
96 | }; |
97 | typedef struct linespec *linespec_p; | |
98 | ||
33f448b1 JK |
99 | /* A canonical linespec represented as a symtab-related string. |
100 | ||
101 | Each entry represents the "SYMTAB:SUFFIX" linespec string. | |
102 | SYMTAB can be converted for example by symtab_to_fullname or | |
103 | symtab_to_filename_for_display as needed. */ | |
104 | ||
105 | struct linespec_canonical_name | |
106 | { | |
107 | /* Remaining text part of the linespec string. */ | |
108 | char *suffix; | |
109 | ||
110 | /* If NULL then SUFFIX is the whole linespec string. */ | |
111 | struct symtab *symtab; | |
112 | }; | |
113 | ||
f8eba3c6 TT |
114 | /* An instance of this is used to keep all state while linespec |
115 | operates. This instance is passed around as a 'this' pointer to | |
116 | the various implementation methods. */ | |
117 | ||
118 | struct linespec_state | |
119 | { | |
40e084e1 KS |
120 | /* The language in use during linespec processing. */ |
121 | const struct language_defn *language; | |
122 | ||
f8eba3c6 TT |
123 | /* The program space as seen when the module was entered. */ |
124 | struct program_space *program_space; | |
125 | ||
c2f4122d PA |
126 | /* If not NULL, the search is restricted to just this program |
127 | space. */ | |
128 | struct program_space *search_pspace; | |
129 | ||
f8eba3c6 TT |
130 | /* The default symtab to use, if no other symtab is specified. */ |
131 | struct symtab *default_symtab; | |
132 | ||
133 | /* The default line to use. */ | |
134 | int default_line; | |
135 | ||
f8eba3c6 TT |
136 | /* The 'funfirstline' value that was passed in to decode_line_1 or |
137 | decode_line_full. */ | |
138 | int funfirstline; | |
139 | ||
140 | /* Nonzero if we are running in 'list' mode; see decode_line_list. */ | |
141 | int list_mode; | |
142 | ||
143 | /* The 'canonical' value passed to decode_line_full, or NULL. */ | |
144 | struct linespec_result *canonical; | |
145 | ||
146 | /* Canonical strings that mirror the symtabs_and_lines result. */ | |
33f448b1 | 147 | struct linespec_canonical_name *canonical_names; |
f8eba3c6 TT |
148 | |
149 | /* This is a set of address_entry objects which is used to prevent | |
150 | duplicate symbols from being entered into the result. */ | |
151 | htab_t addr_set; | |
00e52e53 KS |
152 | |
153 | /* Are we building a linespec? */ | |
154 | int is_linespec; | |
f8eba3c6 TT |
155 | }; |
156 | ||
157 | /* This is a helper object that is used when collecting symbols into a | |
158 | result. */ | |
159 | ||
160 | struct collect_info | |
161 | { | |
162 | /* The linespec object in use. */ | |
163 | struct linespec_state *state; | |
164 | ||
40e084e1 | 165 | /* A list of symtabs to which to restrict matches. */ |
ec94af83 | 166 | VEC (symtab_ptr) *file_symtabs; |
40e084e1 | 167 | |
f8eba3c6 | 168 | /* The result being accumulated. */ |
40e084e1 KS |
169 | struct |
170 | { | |
171 | VEC (symbolp) *symbols; | |
f60e2d5c | 172 | VEC (bound_minimal_symbol_d) *minimal_symbols; |
40e084e1 | 173 | } result; |
f8eba3c6 | 174 | }; |
50641945 | 175 | |
40e084e1 | 176 | /* Token types */ |
50641945 | 177 | |
40e084e1 KS |
178 | enum ls_token_type |
179 | { | |
180 | /* A keyword */ | |
181 | LSTOKEN_KEYWORD = 0, | |
44fe14ab | 182 | |
40e084e1 KS |
183 | /* A colon "separator" */ |
184 | LSTOKEN_COLON, | |
44fe14ab | 185 | |
40e084e1 KS |
186 | /* A string */ |
187 | LSTOKEN_STRING, | |
0960f083 | 188 | |
40e084e1 KS |
189 | /* A number */ |
190 | LSTOKEN_NUMBER, | |
191 | ||
192 | /* A comma */ | |
193 | LSTOKEN_COMMA, | |
194 | ||
195 | /* EOI (end of input) */ | |
196 | LSTOKEN_EOI, | |
197 | ||
198 | /* Consumed token */ | |
199 | LSTOKEN_CONSUMED | |
200 | }; | |
201 | typedef enum ls_token_type linespec_token_type; | |
202 | ||
203 | /* List of keywords */ | |
204 | ||
205 | static const char * const linespec_keywords[] = { "if", "thread", "task" }; | |
0578b14e | 206 | #define IF_KEYWORD_INDEX 0 |
40e084e1 KS |
207 | |
208 | /* A token of the linespec lexer */ | |
209 | ||
210 | struct ls_token | |
211 | { | |
212 | /* The type of the token */ | |
213 | linespec_token_type type; | |
214 | ||
215 | /* Data for the token */ | |
216 | union | |
217 | { | |
218 | /* A string, given as a stoken */ | |
219 | struct stoken string; | |
220 | ||
221 | /* A keyword */ | |
222 | const char *keyword; | |
223 | } data; | |
224 | }; | |
225 | typedef struct ls_token linespec_token; | |
226 | ||
227 | #define LS_TOKEN_STOKEN(TOK) (TOK).data.string | |
228 | #define LS_TOKEN_KEYWORD(TOK) (TOK).data.keyword | |
229 | ||
230 | /* An instance of the linespec parser. */ | |
231 | ||
232 | struct ls_parser | |
233 | { | |
234 | /* Lexer internal data */ | |
235 | struct | |
236 | { | |
237 | /* Save head of input stream. */ | |
d7561cbb | 238 | const char *saved_arg; |
d2630e69 | 239 | |
40e084e1 | 240 | /* Head of the input stream. */ |
f00aae0f KS |
241 | const char *stream; |
242 | #define PARSER_STREAM(P) ((P)->lexer.stream) | |
614b3b14 | 243 | |
40e084e1 KS |
244 | /* The current token. */ |
245 | linespec_token current; | |
246 | } lexer; | |
93d91629 | 247 | |
40e084e1 KS |
248 | /* Is the entire linespec quote-enclosed? */ |
249 | int is_quote_enclosed; | |
250 | ||
251 | /* The state of the parse. */ | |
252 | struct linespec_state state; | |
253 | #define PARSER_STATE(PPTR) (&(PPTR)->state) | |
4224873a | 254 | |
40e084e1 KS |
255 | /* The result of the parse. */ |
256 | struct linespec result; | |
257 | #define PARSER_RESULT(PPTR) (&(PPTR)->result) | |
258 | }; | |
259 | typedef struct ls_parser linespec_parser; | |
50641945 | 260 | |
00e52e53 KS |
261 | /* A convenience macro for accessing the explicit location result of |
262 | the parser. */ | |
67994074 | 263 | #define PARSER_EXPLICIT(PPTR) (&PARSER_RESULT ((PPTR))->explicit_loc) |
00e52e53 | 264 | |
40e084e1 | 265 | /* Prototypes for local functions. */ |
50641945 | 266 | |
4eeaa230 DE |
267 | static void iterate_over_file_blocks (struct symtab *symtab, |
268 | const char *name, domain_enum domain, | |
269 | symbol_found_callback_ftype *callback, | |
270 | void *data); | |
271 | ||
40e084e1 KS |
272 | static void initialize_defaults (struct symtab **default_symtab, |
273 | int *default_line); | |
50641945 | 274 | |
a06efdd6 | 275 | CORE_ADDR linespec_expression_to_pc (const char **exp_ptr); |
aee8d8ba | 276 | |
40e084e1 KS |
277 | static struct symtabs_and_lines decode_objc (struct linespec_state *self, |
278 | linespec_p ls, | |
f00aae0f | 279 | const char *arg); |
aee8d8ba | 280 | |
c2f4122d PA |
281 | static VEC (symtab_ptr) *symtabs_from_filename (const char *, |
282 | struct program_space *pspace); | |
50641945 | 283 | |
40e084e1 KS |
284 | static VEC (symbolp) *find_label_symbols (struct linespec_state *self, |
285 | VEC (symbolp) *function_symbols, | |
286 | VEC (symbolp) **label_funcs_ret, | |
287 | const char *name); | |
50641945 | 288 | |
b1ae631a | 289 | static void find_linespec_symbols (struct linespec_state *self, |
ec94af83 | 290 | VEC (symtab_ptr) *file_symtabs, |
b1ae631a DE |
291 | const char *name, |
292 | VEC (symbolp) **symbols, | |
f60e2d5c | 293 | VEC (bound_minimal_symbol_d) **minsyms); |
f8eba3c6 | 294 | |
40e084e1 KS |
295 | static struct line_offset |
296 | linespec_parse_variable (struct linespec_state *self, | |
297 | const char *variable); | |
889f28e2 | 298 | |
f8eba3c6 TT |
299 | static int symbol_to_sal (struct symtab_and_line *result, |
300 | int funfirstline, struct symbol *sym); | |
50641945 | 301 | |
f8eba3c6 TT |
302 | static void add_matching_symbols_to_info (const char *name, |
303 | struct collect_info *info, | |
304 | struct program_space *pspace); | |
f3c39e76 | 305 | |
f8eba3c6 TT |
306 | static void add_all_symbol_names_from_pspace (struct collect_info *info, |
307 | struct program_space *pspace, | |
308 | VEC (const_char_ptr) *names); | |
9ef07c8c | 309 | |
c2f4122d PA |
310 | static VEC (symtab_ptr) * |
311 | collect_symtabs_from_filename (const char *file, | |
312 | struct program_space *pspace); | |
84fba31b | 313 | |
40e084e1 KS |
314 | static void decode_digits_ordinary (struct linespec_state *self, |
315 | linespec_p ls, | |
316 | int line, | |
317 | struct symtabs_and_lines *sals, | |
318 | struct linetable_entry **best_entry); | |
14e91ac5 | 319 | |
40e084e1 KS |
320 | static void decode_digits_list_mode (struct linespec_state *self, |
321 | linespec_p ls, | |
322 | struct symtabs_and_lines *values, | |
323 | struct symtab_and_line val); | |
0f5238ed | 324 | |
40e084e1 KS |
325 | static void minsym_found (struct linespec_state *self, struct objfile *objfile, |
326 | struct minimal_symbol *msymbol, | |
327 | struct symtabs_and_lines *result); | |
bca02a8a | 328 | |
40e084e1 | 329 | static int compare_symbols (const void *a, const void *b); |
413dad4d | 330 | |
40e084e1 | 331 | static int compare_msymbols (const void *a, const void *b); |
413dad4d | 332 | |
40e084e1 KS |
333 | /* Permitted quote characters for the parser. This is different from the |
334 | completer's quote characters to allow backward compatibility with the | |
335 | previous parser. */ | |
336 | static const char *const linespec_quote_characters = "\"\'"; | |
f8eba3c6 | 337 | |
40e084e1 KS |
338 | /* Lexer functions. */ |
339 | ||
340 | /* Lex a number from the input in PARSER. This only supports | |
dd3818c8 KS |
341 | decimal numbers. |
342 | ||
d7cbec71 | 343 | Return true if input is decimal numbers. Return false if not. */ |
40e084e1 | 344 | |
d7cbec71 HZ |
345 | static int |
346 | linespec_lexer_lex_number (linespec_parser *parser, linespec_token *tokenp) | |
40e084e1 | 347 | { |
d7cbec71 HZ |
348 | tokenp->type = LSTOKEN_NUMBER; |
349 | LS_TOKEN_STOKEN (*tokenp).length = 0; | |
350 | LS_TOKEN_STOKEN (*tokenp).ptr = PARSER_STREAM (parser); | |
40e084e1 KS |
351 | |
352 | /* Keep any sign at the start of the stream. */ | |
353 | if (*PARSER_STREAM (parser) == '+' || *PARSER_STREAM (parser) == '-') | |
354 | { | |
d7cbec71 | 355 | ++LS_TOKEN_STOKEN (*tokenp).length; |
40e084e1 KS |
356 | ++(PARSER_STREAM (parser)); |
357 | } | |
358 | ||
359 | while (isdigit (*PARSER_STREAM (parser))) | |
360 | { | |
d7cbec71 | 361 | ++LS_TOKEN_STOKEN (*tokenp).length; |
40e084e1 | 362 | ++(PARSER_STREAM (parser)); |
f8eba3c6 | 363 | } |
40e084e1 | 364 | |
dd3818c8 | 365 | /* If the next character in the input buffer is not a space, comma, |
eff9c3e6 | 366 | quote, or colon, this input does not represent a number. */ |
dd3818c8 KS |
367 | if (*PARSER_STREAM (parser) != '\0' |
368 | && !isspace (*PARSER_STREAM (parser)) && *PARSER_STREAM (parser) != ',' | |
eff9c3e6 KS |
369 | && *PARSER_STREAM (parser) != ':' |
370 | && !strchr (linespec_quote_characters, *PARSER_STREAM (parser))) | |
d7cbec71 HZ |
371 | { |
372 | PARSER_STREAM (parser) = LS_TOKEN_STOKEN (*tokenp).ptr; | |
373 | return 0; | |
374 | } | |
375 | ||
376 | return 1; | |
f8eba3c6 TT |
377 | } |
378 | ||
32b40af9 | 379 | /* See linespec.h. */ |
f8eba3c6 | 380 | |
0578b14e | 381 | const char * |
40e084e1 | 382 | linespec_lexer_lex_keyword (const char *p) |
f8eba3c6 | 383 | { |
40e084e1 | 384 | int i; |
f8eba3c6 | 385 | |
40e084e1 KS |
386 | if (p != NULL) |
387 | { | |
388 | for (i = 0; i < ARRAY_SIZE (linespec_keywords); ++i) | |
389 | { | |
390 | int len = strlen (linespec_keywords[i]); | |
391 | ||
392 | /* If P begins with one of the keywords and the next | |
0578b14e KS |
393 | character is whitespace, we may have found a keyword. |
394 | It is only a keyword if it is not followed by another | |
395 | keyword. */ | |
40e084e1 | 396 | if (strncmp (p, linespec_keywords[i], len) == 0 |
0578b14e KS |
397 | && isspace (p[len])) |
398 | { | |
399 | int j; | |
400 | ||
401 | /* Special case: "if" ALWAYS stops the lexer, since it | |
402 | is not possible to predict what is going to appear in | |
403 | the condition, which can only be parsed after SaLs have | |
404 | been found. */ | |
405 | if (i != IF_KEYWORD_INDEX) | |
406 | { | |
407 | p += len; | |
408 | p = skip_spaces_const (p); | |
409 | for (j = 0; j < ARRAY_SIZE (linespec_keywords); ++j) | |
410 | { | |
411 | int nextlen = strlen (linespec_keywords[j]); | |
412 | ||
413 | if (strncmp (p, linespec_keywords[j], nextlen) == 0 | |
414 | && isspace (p[nextlen])) | |
415 | return NULL; | |
416 | } | |
417 | } | |
418 | ||
419 | return linespec_keywords[i]; | |
420 | } | |
40e084e1 KS |
421 | } |
422 | } | |
423 | ||
424 | return NULL; | |
f8eba3c6 TT |
425 | } |
426 | ||
87f0e720 | 427 | /* See description in linespec.h. */ |
f8eba3c6 | 428 | |
87f0e720 | 429 | int |
40e084e1 | 430 | is_ada_operator (const char *string) |
f8eba3c6 | 431 | { |
40e084e1 | 432 | const struct ada_opname_map *mapping; |
f8eba3c6 | 433 | |
40e084e1 KS |
434 | for (mapping = ada_opname_table; |
435 | mapping->encoded != NULL | |
61012eef | 436 | && !startswith (string, mapping->decoded); ++mapping) |
40e084e1 KS |
437 | ; |
438 | ||
439 | return mapping->decoded == NULL ? 0 : strlen (mapping->decoded); | |
f8eba3c6 TT |
440 | } |
441 | ||
40e084e1 KS |
442 | /* Find QUOTE_CHAR in STRING, accounting for the ':' terminal. Return |
443 | the location of QUOTE_CHAR, or NULL if not found. */ | |
f8eba3c6 | 444 | |
40e084e1 KS |
445 | static const char * |
446 | skip_quote_char (const char *string, char quote_char) | |
f8eba3c6 | 447 | { |
40e084e1 | 448 | const char *p, *last; |
f8eba3c6 | 449 | |
40e084e1 KS |
450 | p = last = find_toplevel_char (string, quote_char); |
451 | while (p && *p != '\0' && *p != ':') | |
452 | { | |
453 | p = find_toplevel_char (p, quote_char); | |
454 | if (p != NULL) | |
455 | last = p++; | |
456 | } | |
f8eba3c6 | 457 | |
40e084e1 | 458 | return last; |
f8eba3c6 | 459 | } |
50641945 | 460 | |
40e084e1 KS |
461 | /* Make a writable copy of the string given in TOKEN, trimming |
462 | any trailing whitespace. */ | |
50641945 | 463 | |
40e084e1 KS |
464 | static char * |
465 | copy_token_string (linespec_token token) | |
50641945 | 466 | { |
40e084e1 | 467 | char *str, *s; |
e0881a8e | 468 | |
40e084e1 KS |
469 | if (token.type == LSTOKEN_KEYWORD) |
470 | return xstrdup (LS_TOKEN_KEYWORD (token)); | |
255e7dbf | 471 | |
40e084e1 KS |
472 | str = savestring (LS_TOKEN_STOKEN (token).ptr, |
473 | LS_TOKEN_STOKEN (token).length); | |
474 | s = remove_trailing_whitespace (str, str + LS_TOKEN_STOKEN (token).length); | |
475 | *s = '\0'; | |
e0881a8e | 476 | |
40e084e1 KS |
477 | return str; |
478 | } | |
255e7dbf | 479 | |
40e084e1 | 480 | /* Does P represent the end of a quote-enclosed linespec? */ |
f3a5f1de | 481 | |
40e084e1 KS |
482 | static int |
483 | is_closing_quote_enclosed (const char *p) | |
484 | { | |
485 | if (strchr (linespec_quote_characters, *p)) | |
486 | ++p; | |
487 | p = skip_spaces ((char *) p); | |
488 | return (*p == '\0' || linespec_lexer_lex_keyword (p)); | |
50641945 FN |
489 | } |
490 | ||
40e084e1 KS |
491 | /* Find the end of the parameter list that starts with *INPUT. |
492 | This helper function assists with lexing string segments | |
493 | which might contain valid (non-terminating) commas. */ | |
481860b3 | 494 | |
d7561cbb KS |
495 | static const char * |
496 | find_parameter_list_end (const char *input) | |
481860b3 | 497 | { |
40e084e1 KS |
498 | char end_char, start_char; |
499 | int depth; | |
d7561cbb | 500 | const char *p; |
481860b3 | 501 | |
40e084e1 KS |
502 | start_char = *input; |
503 | if (start_char == '(') | |
504 | end_char = ')'; | |
505 | else if (start_char == '<') | |
506 | end_char = '>'; | |
507 | else | |
508 | return NULL; | |
481860b3 | 509 | |
40e084e1 KS |
510 | p = input; |
511 | depth = 0; | |
512 | while (*p) | |
481860b3 | 513 | { |
40e084e1 KS |
514 | if (*p == start_char) |
515 | ++depth; | |
516 | else if (*p == end_char) | |
517 | { | |
518 | if (--depth == 0) | |
519 | { | |
520 | ++p; | |
521 | break; | |
522 | } | |
523 | } | |
524 | ++p; | |
481860b3 | 525 | } |
40e084e1 KS |
526 | |
527 | return p; | |
481860b3 GB |
528 | } |
529 | ||
74ccd7f5 | 530 | |
40e084e1 KS |
531 | /* Lex a string from the input in PARSER. */ |
532 | ||
533 | static linespec_token | |
534 | linespec_lexer_lex_string (linespec_parser *parser) | |
74ccd7f5 | 535 | { |
40e084e1 | 536 | linespec_token token; |
d7561cbb | 537 | const char *start = PARSER_STREAM (parser); |
74ccd7f5 | 538 | |
40e084e1 | 539 | token.type = LSTOKEN_STRING; |
74ccd7f5 | 540 | |
40e084e1 KS |
541 | /* If the input stream starts with a quote character, skip to the next |
542 | quote character, regardless of the content. */ | |
543 | if (strchr (linespec_quote_characters, *PARSER_STREAM (parser))) | |
544 | { | |
545 | const char *end; | |
546 | char quote_char = *PARSER_STREAM (parser); | |
50641945 | 547 | |
40e084e1 KS |
548 | /* Special case: Ada operators. */ |
549 | if (PARSER_STATE (parser)->language->la_language == language_ada | |
550 | && quote_char == '\"') | |
551 | { | |
552 | int len = is_ada_operator (PARSER_STREAM (parser)); | |
50641945 | 553 | |
40e084e1 KS |
554 | if (len != 0) |
555 | { | |
556 | /* The input is an Ada operator. Return the quoted string | |
557 | as-is. */ | |
558 | LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser); | |
559 | LS_TOKEN_STOKEN (token).length = len; | |
560 | PARSER_STREAM (parser) += len; | |
561 | return token; | |
562 | } | |
f8eba3c6 | 563 | |
40e084e1 KS |
564 | /* The input does not represent an Ada operator -- fall through |
565 | to normal quoted string handling. */ | |
566 | } | |
f8eba3c6 | 567 | |
40e084e1 KS |
568 | /* Skip past the beginning quote. */ |
569 | ++(PARSER_STREAM (parser)); | |
74ccd7f5 | 570 | |
40e084e1 KS |
571 | /* Mark the start of the string. */ |
572 | LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser); | |
f8eba3c6 | 573 | |
40e084e1 KS |
574 | /* Skip to the ending quote. */ |
575 | end = skip_quote_char (PARSER_STREAM (parser), quote_char); | |
576 | ||
577 | /* Error if the input did not terminate properly. */ | |
578 | if (end == NULL) | |
579 | error (_("unmatched quote")); | |
580 | ||
581 | /* Skip over the ending quote and mark the length of the string. */ | |
582 | PARSER_STREAM (parser) = (char *) ++end; | |
583 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - 2 - start; | |
584 | } | |
585 | else | |
586 | { | |
d7561cbb | 587 | const char *p; |
40e084e1 KS |
588 | |
589 | /* Otherwise, only identifier characters are permitted. | |
590 | Spaces are the exception. In general, we keep spaces, | |
591 | but only if the next characters in the input do not resolve | |
592 | to one of the keywords. | |
593 | ||
594 | This allows users to forgo quoting CV-qualifiers, template arguments, | |
595 | and similar common language constructs. */ | |
596 | ||
597 | while (1) | |
598 | { | |
599 | if (isspace (*PARSER_STREAM (parser))) | |
600 | { | |
d7561cbb | 601 | p = skip_spaces_const (PARSER_STREAM (parser)); |
7c09e5a0 DE |
602 | /* When we get here we know we've found something followed by |
603 | a space (we skip over parens and templates below). | |
604 | So if we find a keyword now, we know it is a keyword and not, | |
605 | say, a function name. */ | |
40e084e1 KS |
606 | if (linespec_lexer_lex_keyword (p) != NULL) |
607 | { | |
608 | LS_TOKEN_STOKEN (token).ptr = start; | |
609 | LS_TOKEN_STOKEN (token).length | |
610 | = PARSER_STREAM (parser) - start; | |
611 | return token; | |
612 | } | |
613 | ||
614 | /* Advance past the whitespace. */ | |
615 | PARSER_STREAM (parser) = p; | |
616 | } | |
617 | ||
618 | /* If the next character is EOI or (single) ':', the | |
619 | string is complete; return the token. */ | |
620 | if (*PARSER_STREAM (parser) == 0) | |
621 | { | |
622 | LS_TOKEN_STOKEN (token).ptr = start; | |
623 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
624 | return token; | |
625 | } | |
626 | else if (PARSER_STREAM (parser)[0] == ':') | |
627 | { | |
628 | /* Do not tokenize the C++ scope operator. */ | |
629 | if (PARSER_STREAM (parser)[1] == ':') | |
630 | ++(PARSER_STREAM (parser)); | |
631 | ||
632 | /* Do not tokenify if the input length so far is one | |
633 | (i.e, a single-letter drive name) and the next character | |
634 | is a directory separator. This allows Windows-style | |
635 | paths to be recognized as filenames without quoting it. */ | |
636 | else if ((PARSER_STREAM (parser) - start) != 1 | |
637 | || !IS_DIR_SEPARATOR (PARSER_STREAM (parser)[1])) | |
638 | { | |
639 | LS_TOKEN_STOKEN (token).ptr = start; | |
640 | LS_TOKEN_STOKEN (token).length | |
641 | = PARSER_STREAM (parser) - start; | |
642 | return token; | |
643 | } | |
644 | } | |
645 | /* Special case: permit quote-enclosed linespecs. */ | |
646 | else if (parser->is_quote_enclosed | |
647 | && strchr (linespec_quote_characters, | |
648 | *PARSER_STREAM (parser)) | |
649 | && is_closing_quote_enclosed (PARSER_STREAM (parser))) | |
650 | { | |
651 | LS_TOKEN_STOKEN (token).ptr = start; | |
652 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
653 | return token; | |
654 | } | |
655 | /* Because commas may terminate a linespec and appear in | |
656 | the middle of valid string input, special cases for | |
657 | '<' and '(' are necessary. */ | |
658 | else if (*PARSER_STREAM (parser) == '<' | |
659 | || *PARSER_STREAM (parser) == '(') | |
660 | { | |
d7561cbb | 661 | const char *p; |
40e084e1 KS |
662 | |
663 | p = find_parameter_list_end (PARSER_STREAM (parser)); | |
664 | if (p != NULL) | |
665 | { | |
666 | PARSER_STREAM (parser) = p; | |
667 | continue; | |
668 | } | |
669 | } | |
670 | /* Commas are terminators, but not if they are part of an | |
671 | operator name. */ | |
672 | else if (*PARSER_STREAM (parser) == ',') | |
673 | { | |
674 | if ((PARSER_STATE (parser)->language->la_language | |
675 | == language_cplus) | |
676 | && (PARSER_STREAM (parser) - start) > 8 | |
677 | /* strlen ("operator") */) | |
678 | { | |
acaa662f | 679 | const char *p = strstr (start, "operator"); |
40e084e1 KS |
680 | |
681 | if (p != NULL && is_operator_name (p)) | |
682 | { | |
683 | /* This is an operator name. Keep going. */ | |
684 | ++(PARSER_STREAM (parser)); | |
685 | continue; | |
686 | } | |
687 | } | |
688 | ||
689 | /* Comma terminates the string. */ | |
690 | LS_TOKEN_STOKEN (token).ptr = start; | |
691 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
692 | return token; | |
693 | } | |
694 | ||
695 | /* Advance the stream. */ | |
696 | ++(PARSER_STREAM (parser)); | |
697 | } | |
698 | } | |
699 | ||
700 | return token; | |
701 | } | |
702 | ||
703 | /* Lex a single linespec token from PARSER. */ | |
704 | ||
705 | static linespec_token | |
706 | linespec_lexer_lex_one (linespec_parser *parser) | |
707 | { | |
708 | const char *keyword; | |
709 | ||
710 | if (parser->lexer.current.type == LSTOKEN_CONSUMED) | |
711 | { | |
712 | /* Skip any whitespace. */ | |
d7561cbb | 713 | PARSER_STREAM (parser) = skip_spaces_const (PARSER_STREAM (parser)); |
40e084e1 | 714 | |
7c09e5a0 | 715 | /* Check for a keyword, they end the linespec. */ |
0578b14e | 716 | keyword = linespec_lexer_lex_keyword (PARSER_STREAM (parser)); |
40e084e1 KS |
717 | if (keyword != NULL) |
718 | { | |
719 | parser->lexer.current.type = LSTOKEN_KEYWORD; | |
720 | LS_TOKEN_KEYWORD (parser->lexer.current) = keyword; | |
0578b14e KS |
721 | /* We do not advance the stream here intentionally: |
722 | we would like lexing to stop when a keyword is seen. | |
723 | ||
724 | PARSER_STREAM (parser) += strlen (keyword); */ | |
725 | ||
40e084e1 KS |
726 | return parser->lexer.current; |
727 | } | |
728 | ||
729 | /* Handle other tokens. */ | |
730 | switch (*PARSER_STREAM (parser)) | |
731 | { | |
732 | case 0: | |
733 | parser->lexer.current.type = LSTOKEN_EOI; | |
734 | break; | |
735 | ||
736 | case '+': case '-': | |
737 | case '0': case '1': case '2': case '3': case '4': | |
738 | case '5': case '6': case '7': case '8': case '9': | |
d7cbec71 HZ |
739 | if (!linespec_lexer_lex_number (parser, &(parser->lexer.current))) |
740 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
40e084e1 KS |
741 | break; |
742 | ||
743 | case ':': | |
744 | /* If we have a scope operator, lex the input as a string. | |
745 | Otherwise, return LSTOKEN_COLON. */ | |
746 | if (PARSER_STREAM (parser)[1] == ':') | |
747 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
748 | else | |
749 | { | |
750 | parser->lexer.current.type = LSTOKEN_COLON; | |
751 | ++(PARSER_STREAM (parser)); | |
752 | } | |
753 | break; | |
754 | ||
755 | case '\'': case '\"': | |
756 | /* Special case: permit quote-enclosed linespecs. */ | |
757 | if (parser->is_quote_enclosed | |
758 | && is_closing_quote_enclosed (PARSER_STREAM (parser))) | |
759 | { | |
760 | ++(PARSER_STREAM (parser)); | |
761 | parser->lexer.current.type = LSTOKEN_EOI; | |
762 | } | |
763 | else | |
764 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
765 | break; | |
766 | ||
767 | case ',': | |
768 | parser->lexer.current.type = LSTOKEN_COMMA; | |
769 | LS_TOKEN_STOKEN (parser->lexer.current).ptr | |
770 | = PARSER_STREAM (parser); | |
771 | LS_TOKEN_STOKEN (parser->lexer.current).length = 1; | |
772 | ++(PARSER_STREAM (parser)); | |
773 | break; | |
774 | ||
775 | default: | |
776 | /* If the input is not a number, it must be a string. | |
777 | [Keywords were already considered above.] */ | |
778 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
779 | break; | |
780 | } | |
781 | } | |
782 | ||
783 | return parser->lexer.current; | |
784 | } | |
785 | ||
786 | /* Consume the current token and return the next token in PARSER's | |
787 | input stream. */ | |
788 | ||
789 | static linespec_token | |
790 | linespec_lexer_consume_token (linespec_parser *parser) | |
791 | { | |
792 | parser->lexer.current.type = LSTOKEN_CONSUMED; | |
793 | return linespec_lexer_lex_one (parser); | |
794 | } | |
795 | ||
796 | /* Return the next token without consuming the current token. */ | |
797 | ||
798 | static linespec_token | |
799 | linespec_lexer_peek_token (linespec_parser *parser) | |
800 | { | |
801 | linespec_token next; | |
d7561cbb | 802 | const char *saved_stream = PARSER_STREAM (parser); |
40e084e1 KS |
803 | linespec_token saved_token = parser->lexer.current; |
804 | ||
805 | next = linespec_lexer_consume_token (parser); | |
806 | PARSER_STREAM (parser) = saved_stream; | |
807 | parser->lexer.current = saved_token; | |
808 | return next; | |
809 | } | |
810 | ||
811 | /* Helper functions. */ | |
812 | ||
813 | /* Add SAL to SALS. */ | |
814 | ||
815 | static void | |
816 | add_sal_to_sals_basic (struct symtabs_and_lines *sals, | |
817 | struct symtab_and_line *sal) | |
818 | { | |
819 | ++sals->nelts; | |
224c3ddb | 820 | sals->sals = XRESIZEVEC (struct symtab_and_line, sals->sals, sals->nelts); |
40e084e1 KS |
821 | sals->sals[sals->nelts - 1] = *sal; |
822 | } | |
823 | ||
824 | /* Add SAL to SALS, and also update SELF->CANONICAL_NAMES to reflect | |
825 | the new sal, if needed. If not NULL, SYMNAME is the name of the | |
66f1999b KS |
826 | symbol to use when constructing the new canonical name. |
827 | ||
828 | If LITERAL_CANONICAL is non-zero, SYMNAME will be used as the | |
829 | canonical name for the SAL. */ | |
40e084e1 KS |
830 | |
831 | static void | |
832 | add_sal_to_sals (struct linespec_state *self, | |
833 | struct symtabs_and_lines *sals, | |
834 | struct symtab_and_line *sal, | |
66f1999b | 835 | const char *symname, int literal_canonical) |
40e084e1 KS |
836 | { |
837 | add_sal_to_sals_basic (sals, sal); | |
838 | ||
839 | if (self->canonical) | |
840 | { | |
33f448b1 | 841 | struct linespec_canonical_name *canonical; |
40e084e1 | 842 | |
224c3ddb SM |
843 | self->canonical_names = XRESIZEVEC (struct linespec_canonical_name, |
844 | self->canonical_names, sals->nelts); | |
33f448b1 | 845 | canonical = &self->canonical_names[sals->nelts - 1]; |
4e04028d | 846 | if (!literal_canonical && sal->symtab) |
40e084e1 | 847 | { |
df140a0b TS |
848 | symtab_to_fullname (sal->symtab); |
849 | ||
40e084e1 KS |
850 | /* Note that the filter doesn't have to be a valid linespec |
851 | input. We only apply the ":LINE" treatment to Ada for | |
852 | the time being. */ | |
853 | if (symname != NULL && sal->line != 0 | |
854 | && self->language->la_language == language_ada) | |
33f448b1 | 855 | canonical->suffix = xstrprintf ("%s:%d", symname, sal->line); |
40e084e1 | 856 | else if (symname != NULL) |
33f448b1 | 857 | canonical->suffix = xstrdup (symname); |
40e084e1 | 858 | else |
33f448b1 JK |
859 | canonical->suffix = xstrprintf ("%d", sal->line); |
860 | canonical->symtab = sal->symtab; | |
861 | } | |
862 | else | |
863 | { | |
864 | if (symname != NULL) | |
865 | canonical->suffix = xstrdup (symname); | |
866 | else | |
e617b069 | 867 | canonical->suffix = xstrdup ("<unknown>"); |
33f448b1 | 868 | canonical->symtab = NULL; |
40e084e1 | 869 | } |
40e084e1 KS |
870 | } |
871 | } | |
872 | ||
873 | /* A hash function for address_entry. */ | |
874 | ||
875 | static hashval_t | |
876 | hash_address_entry (const void *p) | |
877 | { | |
9a3c8263 | 878 | const struct address_entry *aep = (const struct address_entry *) p; |
40e084e1 KS |
879 | hashval_t hash; |
880 | ||
881 | hash = iterative_hash_object (aep->pspace, 0); | |
882 | return iterative_hash_object (aep->addr, hash); | |
883 | } | |
884 | ||
885 | /* An equality function for address_entry. */ | |
886 | ||
887 | static int | |
888 | eq_address_entry (const void *a, const void *b) | |
889 | { | |
9a3c8263 SM |
890 | const struct address_entry *aea = (const struct address_entry *) a; |
891 | const struct address_entry *aeb = (const struct address_entry *) b; | |
40e084e1 KS |
892 | |
893 | return aea->pspace == aeb->pspace && aea->addr == aeb->addr; | |
894 | } | |
895 | ||
896 | /* Check whether the address, represented by PSPACE and ADDR, is | |
897 | already in the set. If so, return 0. Otherwise, add it and return | |
898 | 1. */ | |
899 | ||
900 | static int | |
901 | maybe_add_address (htab_t set, struct program_space *pspace, CORE_ADDR addr) | |
902 | { | |
903 | struct address_entry e, *p; | |
904 | void **slot; | |
905 | ||
906 | e.pspace = pspace; | |
907 | e.addr = addr; | |
908 | slot = htab_find_slot (set, &e, INSERT); | |
909 | if (*slot) | |
910 | return 0; | |
911 | ||
912 | p = XNEW (struct address_entry); | |
913 | memcpy (p, &e, sizeof (struct address_entry)); | |
914 | *slot = p; | |
915 | ||
916 | return 1; | |
917 | } | |
918 | ||
919 | /* A callback function and the additional data to call it with. */ | |
920 | ||
921 | struct symbol_and_data_callback | |
922 | { | |
923 | /* The callback to use. */ | |
924 | symbol_found_callback_ftype *callback; | |
925 | ||
926 | /* Data to be passed to the callback. */ | |
927 | void *data; | |
928 | }; | |
929 | ||
930 | /* A helper for iterate_over_all_matching_symtabs that is used to | |
931 | restrict calls to another callback to symbols representing inline | |
932 | symbols only. */ | |
933 | ||
934 | static int | |
935 | iterate_inline_only (struct symbol *sym, void *d) | |
936 | { | |
937 | if (SYMBOL_INLINED (sym)) | |
938 | { | |
9a3c8263 SM |
939 | struct symbol_and_data_callback *cad |
940 | = (struct symbol_and_data_callback *) d; | |
40e084e1 KS |
941 | |
942 | return cad->callback (sym, cad->data); | |
943 | } | |
944 | return 1; /* Continue iterating. */ | |
945 | } | |
946 | ||
947 | /* Some data for the expand_symtabs_matching callback. */ | |
948 | ||
949 | struct symbol_matcher_data | |
950 | { | |
951 | /* The lookup name against which symbol name should be compared. */ | |
952 | const char *lookup_name; | |
953 | ||
954 | /* The routine to be used for comparison. */ | |
955 | symbol_name_cmp_ftype symbol_name_cmp; | |
956 | }; | |
957 | ||
958 | /* A helper for iterate_over_all_matching_symtabs that is passed as a | |
959 | callback to the expand_symtabs_matching method. */ | |
960 | ||
961 | static int | |
962 | iterate_name_matcher (const char *name, void *d) | |
963 | { | |
9a3c8263 SM |
964 | const struct symbol_matcher_data *data |
965 | = (const struct symbol_matcher_data *) d; | |
40e084e1 | 966 | |
642a8d80 | 967 | if (data->symbol_name_cmp (name, data->lookup_name) == 0) |
40e084e1 KS |
968 | return 1; /* Expand this symbol's symbol table. */ |
969 | return 0; /* Skip this symbol. */ | |
970 | } | |
971 | ||
972 | /* A helper that walks over all matching symtabs in all objfiles and | |
973 | calls CALLBACK for each symbol matching NAME. If SEARCH_PSPACE is | |
974 | not NULL, then the search is restricted to just that program | |
975 | space. If INCLUDE_INLINE is nonzero then symbols representing | |
976 | inlined instances of functions will be included in the result. */ | |
977 | ||
978 | static void | |
979 | iterate_over_all_matching_symtabs (struct linespec_state *state, | |
980 | const char *name, | |
981 | const domain_enum domain, | |
982 | symbol_found_callback_ftype *callback, | |
983 | void *data, | |
984 | struct program_space *search_pspace, | |
985 | int include_inline) | |
986 | { | |
987 | struct objfile *objfile; | |
988 | struct program_space *pspace; | |
989 | struct symbol_matcher_data matcher_data; | |
990 | ||
991 | matcher_data.lookup_name = name; | |
992 | matcher_data.symbol_name_cmp = | |
993 | state->language->la_get_symbol_name_cmp != NULL | |
994 | ? state->language->la_get_symbol_name_cmp (name) | |
995 | : strcmp_iw; | |
996 | ||
997 | ALL_PSPACES (pspace) | |
998 | { | |
999 | if (search_pspace != NULL && search_pspace != pspace) | |
1000 | continue; | |
1001 | if (pspace->executing_startup) | |
f8eba3c6 TT |
1002 | continue; |
1003 | ||
1004 | set_current_program_space (pspace); | |
50641945 | 1005 | |
f8eba3c6 TT |
1006 | ALL_OBJFILES (objfile) |
1007 | { | |
43f3e411 | 1008 | struct compunit_symtab *cu; |
f8eba3c6 TT |
1009 | |
1010 | if (objfile->sf) | |
1011 | objfile->sf->qf->expand_symtabs_matching (objfile, NULL, | |
1012 | iterate_name_matcher, | |
276d885b | 1013 | NULL, ALL_DOMAIN, |
74ccd7f5 | 1014 | &matcher_data); |
f8eba3c6 | 1015 | |
43f3e411 | 1016 | ALL_OBJFILE_COMPUNITS (objfile, cu) |
f8eba3c6 | 1017 | { |
43f3e411 DE |
1018 | struct symtab *symtab = COMPUNIT_FILETABS (cu); |
1019 | ||
4eeaa230 | 1020 | iterate_over_file_blocks (symtab, name, domain, callback, data); |
481860b3 | 1021 | |
d790cf0a DE |
1022 | if (include_inline) |
1023 | { | |
1024 | struct symbol_and_data_callback cad = { callback, data }; | |
4eeaa230 | 1025 | struct block *block; |
d790cf0a | 1026 | int i; |
481860b3 | 1027 | |
d790cf0a | 1028 | for (i = FIRST_LOCAL_BLOCK; |
439247b6 DE |
1029 | i < BLOCKVECTOR_NBLOCKS (SYMTAB_BLOCKVECTOR (symtab)); |
1030 | i++) | |
d790cf0a | 1031 | { |
439247b6 | 1032 | block = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab), i); |
4ae24af0 JB |
1033 | state->language->la_iterate_over_symbols |
1034 | (block, name, domain, iterate_inline_only, &cad); | |
481860b3 | 1035 | } |
f8eba3c6 TT |
1036 | } |
1037 | } | |
1038 | } | |
1039 | } | |
50641945 FN |
1040 | } |
1041 | ||
4eeaa230 DE |
1042 | /* Returns the block to be used for symbol searches from |
1043 | the current location. */ | |
e8eb7bc5 | 1044 | |
3977b71f | 1045 | static const struct block * |
e482a1a7 | 1046 | get_current_search_block (void) |
e8eb7bc5 | 1047 | { |
3977b71f | 1048 | const struct block *block; |
4eeaa230 | 1049 | enum language save_language; |
e8eb7bc5 | 1050 | |
4eeaa230 DE |
1051 | /* get_selected_block can change the current language when there is |
1052 | no selected frame yet. */ | |
1053 | save_language = current_language->la_language; | |
1054 | block = get_selected_block (0); | |
1055 | set_language (save_language); | |
e8eb7bc5 KS |
1056 | |
1057 | return block; | |
1058 | } | |
1059 | ||
4eeaa230 DE |
1060 | /* Iterate over static and global blocks. */ |
1061 | ||
1062 | static void | |
1063 | iterate_over_file_blocks (struct symtab *symtab, | |
1064 | const char *name, domain_enum domain, | |
1065 | symbol_found_callback_ftype *callback, void *data) | |
1066 | { | |
1067 | struct block *block; | |
1068 | ||
439247b6 | 1069 | for (block = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab), STATIC_BLOCK); |
4eeaa230 DE |
1070 | block != NULL; |
1071 | block = BLOCK_SUPERBLOCK (block)) | |
1072 | LA_ITERATE_OVER_SYMBOLS (block, name, domain, callback, data); | |
1073 | } | |
1074 | ||
f8eba3c6 | 1075 | /* A helper for find_method. This finds all methods in type T which |
40e084e1 | 1076 | match NAME. It adds matching symbol names to RESULT_NAMES, and |
f8eba3c6 | 1077 | adds T's direct superclasses to SUPERCLASSES. */ |
50641945 | 1078 | |
f8eba3c6 TT |
1079 | static void |
1080 | find_methods (struct type *t, const char *name, | |
1081 | VEC (const_char_ptr) **result_names, | |
1082 | VEC (typep) **superclasses) | |
50641945 | 1083 | { |
50641945 | 1084 | int ibase; |
0d5cff50 | 1085 | const char *class_name = type_name_no_tag (t); |
c00f8484 | 1086 | |
50641945 FN |
1087 | /* Ignore this class if it doesn't have a name. This is ugly, but |
1088 | unless we figure out how to get the physname without the name of | |
1089 | the class, then the loop can't do any good. */ | |
f8eba3c6 | 1090 | if (class_name) |
50641945 FN |
1091 | { |
1092 | int method_counter; | |
1093 | ||
f168693b | 1094 | t = check_typedef (t); |
50641945 FN |
1095 | |
1096 | /* Loop over each method name. At this level, all overloads of a name | |
1097 | are counted as a single name. There is an inner loop which loops over | |
1098 | each overload. */ | |
1099 | ||
1100 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
1101 | method_counter >= 0; | |
1102 | --method_counter) | |
1103 | { | |
0d5cff50 | 1104 | const char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
50641945 FN |
1105 | char dem_opname[64]; |
1106 | ||
61012eef GB |
1107 | if (startswith (method_name, "__") || |
1108 | startswith (method_name, "op") || | |
1109 | startswith (method_name, "type")) | |
50641945 FN |
1110 | { |
1111 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
1112 | method_name = dem_opname; | |
1113 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
1114 | method_name = dem_opname; | |
1115 | } | |
1116 | ||
f8eba3c6 TT |
1117 | if (strcmp_iw (method_name, name) == 0) |
1118 | { | |
1119 | int field_counter; | |
aee8d8ba | 1120 | |
f8eba3c6 TT |
1121 | for (field_counter = (TYPE_FN_FIELDLIST_LENGTH (t, method_counter) |
1122 | - 1); | |
1123 | field_counter >= 0; | |
1124 | --field_counter) | |
1125 | { | |
1126 | struct fn_field *f; | |
1127 | const char *phys_name; | |
1128 | ||
1129 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
1130 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
1131 | continue; | |
1132 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
1133 | VEC_safe_push (const_char_ptr, *result_names, phys_name); | |
1134 | } | |
1135 | } | |
aee8d8ba DC |
1136 | } |
1137 | } | |
1138 | ||
f8eba3c6 TT |
1139 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) |
1140 | VEC_safe_push (typep, *superclasses, TYPE_BASECLASS (t, ibase)); | |
50641945 FN |
1141 | } |
1142 | ||
50641945 FN |
1143 | /* Find an instance of the character C in the string S that is outside |
1144 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
1145 | strings. Also, ignore the char within a template name, like a ',' |
1146 | within foo<int, int>. */ | |
1147 | ||
87f0e720 | 1148 | const char * |
40e084e1 | 1149 | find_toplevel_char (const char *s, char c) |
50641945 FN |
1150 | { |
1151 | int quoted = 0; /* zero if we're not in quotes; | |
1152 | '"' if we're in a double-quoted string; | |
1153 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 1154 | int depth = 0; /* Number of unclosed parens we've seen. */ |
40e084e1 | 1155 | const char *scan; |
50641945 FN |
1156 | |
1157 | for (scan = s; *scan; scan++) | |
1158 | { | |
1159 | if (quoted) | |
1160 | { | |
1161 | if (*scan == quoted) | |
1162 | quoted = 0; | |
1163 | else if (*scan == '\\' && *(scan + 1)) | |
1164 | scan++; | |
1165 | } | |
1166 | else if (*scan == c && ! quoted && depth == 0) | |
1167 | return scan; | |
1168 | else if (*scan == '"' || *scan == '\'') | |
1169 | quoted = *scan; | |
8120c9d5 | 1170 | else if (*scan == '(' || *scan == '<') |
50641945 | 1171 | depth++; |
8120c9d5 | 1172 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
1173 | depth--; |
1174 | } | |
1175 | ||
1176 | return 0; | |
1177 | } | |
1178 | ||
40e084e1 KS |
1179 | /* The string equivalent of find_toplevel_char. Returns a pointer |
1180 | to the location of NEEDLE in HAYSTACK, ignoring any occurrences | |
1181 | inside "()" and "<>". Returns NULL if NEEDLE was not found. */ | |
889f28e2 | 1182 | |
40e084e1 KS |
1183 | static const char * |
1184 | find_toplevel_string (const char *haystack, const char *needle) | |
889f28e2 | 1185 | { |
40e084e1 KS |
1186 | const char *s = haystack; |
1187 | ||
1188 | do | |
1189 | { | |
1190 | s = find_toplevel_char (s, *needle); | |
1191 | ||
1192 | if (s != NULL) | |
1193 | { | |
1194 | /* Found first char in HAYSTACK; check rest of string. */ | |
61012eef | 1195 | if (startswith (s, needle)) |
40e084e1 KS |
1196 | return s; |
1197 | ||
1198 | /* Didn't find it; loop over HAYSTACK, looking for the next | |
1199 | instance of the first character of NEEDLE. */ | |
1200 | ++s; | |
1201 | } | |
1202 | } | |
1203 | while (s != NULL && *s != '\0'); | |
1204 | ||
1205 | /* NEEDLE was not found in HAYSTACK. */ | |
1206 | return NULL; | |
889f28e2 AF |
1207 | } |
1208 | ||
33f448b1 JK |
1209 | /* Convert CANONICAL to its string representation using |
1210 | symtab_to_fullname for SYMTAB. The caller must xfree the result. */ | |
1211 | ||
1212 | static char * | |
1213 | canonical_to_fullform (const struct linespec_canonical_name *canonical) | |
1214 | { | |
1215 | if (canonical->symtab == NULL) | |
1216 | return xstrdup (canonical->suffix); | |
1217 | else | |
1218 | return xstrprintf ("%s:%s", symtab_to_fullname (canonical->symtab), | |
1219 | canonical->suffix); | |
1220 | } | |
1221 | ||
f8eba3c6 TT |
1222 | /* Given FILTERS, a list of canonical names, filter the sals in RESULT |
1223 | and store the result in SELF->CANONICAL. */ | |
50641945 | 1224 | |
f8eba3c6 TT |
1225 | static void |
1226 | filter_results (struct linespec_state *self, | |
1227 | struct symtabs_and_lines *result, | |
1228 | VEC (const_char_ptr) *filters) | |
1229 | { | |
1230 | int i; | |
1231 | const char *name; | |
1232 | ||
1233 | for (i = 0; VEC_iterate (const_char_ptr, filters, i, name); ++i) | |
1234 | { | |
1235 | struct linespec_sals lsal; | |
1236 | int j; | |
1237 | ||
1238 | memset (&lsal, 0, sizeof (lsal)); | |
1239 | ||
1240 | for (j = 0; j < result->nelts; ++j) | |
1241 | { | |
33f448b1 JK |
1242 | const struct linespec_canonical_name *canonical; |
1243 | char *fullform; | |
1244 | struct cleanup *cleanup; | |
1245 | ||
1246 | canonical = &self->canonical_names[j]; | |
1247 | fullform = canonical_to_fullform (canonical); | |
1248 | cleanup = make_cleanup (xfree, fullform); | |
1249 | ||
1250 | if (strcmp (name, fullform) == 0) | |
f8eba3c6 | 1251 | add_sal_to_sals_basic (&lsal.sals, &result->sals[j]); |
33f448b1 JK |
1252 | |
1253 | do_cleanups (cleanup); | |
f8eba3c6 TT |
1254 | } |
1255 | ||
1256 | if (lsal.sals.nelts > 0) | |
1257 | { | |
1258 | lsal.canonical = xstrdup (name); | |
1259 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
1260 | } | |
1261 | } | |
1262 | ||
1263 | self->canonical->pre_expanded = 0; | |
1264 | } | |
1265 | ||
1266 | /* Store RESULT into SELF->CANONICAL. */ | |
1267 | ||
1268 | static void | |
1269 | convert_results_to_lsals (struct linespec_state *self, | |
1270 | struct symtabs_and_lines *result) | |
50641945 | 1271 | { |
f8eba3c6 TT |
1272 | struct linespec_sals lsal; |
1273 | ||
1274 | lsal.canonical = NULL; | |
1275 | lsal.sals = *result; | |
1276 | VEC_safe_push (linespec_sals, self->canonical->sals, &lsal); | |
1277 | } | |
1278 | ||
33f448b1 JK |
1279 | /* A structure that contains two string representations of a struct |
1280 | linespec_canonical_name: | |
1281 | - one where the the symtab's fullname is used; | |
1282 | - one where the filename followed the "set filename-display" | |
1283 | setting. */ | |
1284 | ||
1285 | struct decode_line_2_item | |
1286 | { | |
1287 | /* The form using symtab_to_fullname. | |
1288 | It must be xfree'ed after use. */ | |
1289 | char *fullform; | |
1290 | ||
1291 | /* The form using symtab_to_filename_for_display. | |
1292 | It must be xfree'ed after use. */ | |
1293 | char *displayform; | |
1294 | ||
1295 | /* Field is initialized to zero and it is set to one if the user | |
1296 | requested breakpoint for this entry. */ | |
1297 | unsigned int selected : 1; | |
1298 | }; | |
1299 | ||
1300 | /* Helper for qsort to sort decode_line_2_item entries by DISPLAYFORM and | |
1301 | secondarily by FULLFORM. */ | |
1302 | ||
1303 | static int | |
1304 | decode_line_2_compare_items (const void *ap, const void *bp) | |
1305 | { | |
9a3c8263 SM |
1306 | const struct decode_line_2_item *a = (const struct decode_line_2_item *) ap; |
1307 | const struct decode_line_2_item *b = (const struct decode_line_2_item *) bp; | |
33f448b1 JK |
1308 | int retval; |
1309 | ||
1310 | retval = strcmp (a->displayform, b->displayform); | |
1311 | if (retval != 0) | |
1312 | return retval; | |
1313 | ||
1314 | return strcmp (a->fullform, b->fullform); | |
1315 | } | |
1316 | ||
f8eba3c6 TT |
1317 | /* Handle multiple results in RESULT depending on SELECT_MODE. This |
1318 | will either return normally, throw an exception on multiple | |
1319 | results, or present a menu to the user. On return, the SALS vector | |
1320 | in SELF->CANONICAL is set up properly. */ | |
1321 | ||
1322 | static void | |
1323 | decode_line_2 (struct linespec_state *self, | |
1324 | struct symtabs_and_lines *result, | |
1325 | const char *select_mode) | |
1326 | { | |
f8eba3c6 | 1327 | char *args, *prompt; |
50641945 | 1328 | int i; |
50641945 | 1329 | struct cleanup *old_chain; |
33f448b1 | 1330 | VEC (const_char_ptr) *filters = NULL; |
f8eba3c6 | 1331 | struct get_number_or_range_state state; |
33f448b1 JK |
1332 | struct decode_line_2_item *items; |
1333 | int items_count; | |
50641945 | 1334 | |
f8eba3c6 TT |
1335 | gdb_assert (select_mode != multiple_symbols_all); |
1336 | gdb_assert (self->canonical != NULL); | |
33f448b1 JK |
1337 | gdb_assert (result->nelts >= 1); |
1338 | ||
1339 | old_chain = make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
50641945 | 1340 | |
33f448b1 JK |
1341 | /* Prepare ITEMS array. */ |
1342 | items_count = result->nelts; | |
8d749320 | 1343 | items = XNEWVEC (struct decode_line_2_item, items_count); |
33f448b1 JK |
1344 | make_cleanup (xfree, items); |
1345 | for (i = 0; i < items_count; ++i) | |
50641945 | 1346 | { |
33f448b1 JK |
1347 | const struct linespec_canonical_name *canonical; |
1348 | struct decode_line_2_item *item; | |
1349 | ||
1350 | canonical = &self->canonical_names[i]; | |
1351 | gdb_assert (canonical->suffix != NULL); | |
1352 | item = &items[i]; | |
f8eba3c6 | 1353 | |
33f448b1 JK |
1354 | item->fullform = canonical_to_fullform (canonical); |
1355 | make_cleanup (xfree, item->fullform); | |
1356 | ||
1357 | if (canonical->symtab == NULL) | |
1358 | item->displayform = canonical->suffix; | |
1359 | else | |
f8eba3c6 | 1360 | { |
33f448b1 JK |
1361 | const char *fn_for_display; |
1362 | ||
1363 | fn_for_display = symtab_to_filename_for_display (canonical->symtab); | |
1364 | item->displayform = xstrprintf ("%s:%s", fn_for_display, | |
1365 | canonical->suffix); | |
1366 | make_cleanup (xfree, item->displayform); | |
f8eba3c6 TT |
1367 | } |
1368 | ||
33f448b1 | 1369 | item->selected = 0; |
50641945 FN |
1370 | } |
1371 | ||
33f448b1 JK |
1372 | /* Sort the list of method names. */ |
1373 | qsort (items, items_count, sizeof (*items), decode_line_2_compare_items); | |
1374 | ||
1375 | /* Remove entries with the same FULLFORM. */ | |
1376 | if (items_count >= 2) | |
1377 | { | |
1378 | struct decode_line_2_item *dst, *src; | |
1379 | ||
1380 | dst = items; | |
1381 | for (src = &items[1]; src < &items[items_count]; src++) | |
1382 | if (strcmp (src->fullform, dst->fullform) != 0) | |
1383 | *++dst = *src; | |
1384 | items_count = dst + 1 - items; | |
1385 | } | |
1386 | ||
1387 | if (select_mode == multiple_symbols_cancel && items_count > 1) | |
f8eba3c6 TT |
1388 | error (_("canceled because the command is ambiguous\n" |
1389 | "See set/show multiple-symbol.")); | |
1390 | ||
33f448b1 | 1391 | if (select_mode == multiple_symbols_all || items_count == 1) |
50641945 | 1392 | { |
f8eba3c6 TT |
1393 | do_cleanups (old_chain); |
1394 | convert_results_to_lsals (self, result); | |
1395 | return; | |
50641945 FN |
1396 | } |
1397 | ||
f8eba3c6 | 1398 | printf_unfiltered (_("[0] cancel\n[1] all\n")); |
33f448b1 JK |
1399 | for (i = 0; i < items_count; i++) |
1400 | printf_unfiltered ("[%d] %s\n", i + 2, items[i].displayform); | |
f8eba3c6 TT |
1401 | |
1402 | prompt = getenv ("PS2"); | |
1403 | if (prompt == NULL) | |
50641945 | 1404 | { |
f8eba3c6 | 1405 | prompt = "> "; |
50641945 | 1406 | } |
f8eba3c6 | 1407 | args = command_line_input (prompt, 0, "overload-choice"); |
50641945 FN |
1408 | |
1409 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 1410 | error_no_arg (_("one or more choice numbers")); |
50641945 | 1411 | |
f8eba3c6 TT |
1412 | init_number_or_range (&state, args); |
1413 | while (!state.finished) | |
50641945 FN |
1414 | { |
1415 | int num; | |
1416 | ||
f8eba3c6 | 1417 | num = get_number_or_range (&state); |
50641945 FN |
1418 | |
1419 | if (num == 0) | |
8a3fe4f8 | 1420 | error (_("canceled")); |
50641945 FN |
1421 | else if (num == 1) |
1422 | { | |
f8eba3c6 TT |
1423 | /* We intentionally make this result in a single breakpoint, |
1424 | contrary to what older versions of gdb did. The | |
1425 | rationale is that this lets a user get the | |
1426 | multiple_symbols_all behavior even with the 'ask' | |
1427 | setting; and he can get separate breakpoints by entering | |
1428 | "2-57" at the query. */ | |
1429 | do_cleanups (old_chain); | |
1430 | convert_results_to_lsals (self, result); | |
1431 | return; | |
50641945 FN |
1432 | } |
1433 | ||
f8eba3c6 | 1434 | num -= 2; |
33f448b1 | 1435 | if (num >= items_count) |
f8eba3c6 | 1436 | printf_unfiltered (_("No choice number %d.\n"), num); |
50641945 FN |
1437 | else |
1438 | { | |
33f448b1 | 1439 | struct decode_line_2_item *item = &items[num]; |
f8eba3c6 | 1440 | |
33f448b1 | 1441 | if (!item->selected) |
50641945 | 1442 | { |
33f448b1 JK |
1443 | VEC_safe_push (const_char_ptr, filters, item->fullform); |
1444 | item->selected = 1; | |
50641945 FN |
1445 | } |
1446 | else | |
1447 | { | |
3e43a32a | 1448 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
f6f99966 | 1449 | num + 2); |
50641945 FN |
1450 | } |
1451 | } | |
50641945 | 1452 | } |
f8eba3c6 TT |
1453 | |
1454 | filter_results (self, result, filters); | |
1455 | do_cleanups (old_chain); | |
50641945 | 1456 | } |
94af9270 | 1457 | |
40e084e1 | 1458 | \f |
3d50dd94 | 1459 | |
40e084e1 KS |
1460 | /* The parser of linespec itself. */ |
1461 | ||
1462 | /* Throw an appropriate error when SYMBOL is not found (optionally in | |
1463 | FILENAME). */ | |
1464 | ||
1465 | static void ATTRIBUTE_NORETURN | |
5d94e27b | 1466 | symbol_not_found_error (const char *symbol, const char *filename) |
3d50dd94 | 1467 | { |
40e084e1 KS |
1468 | if (symbol == NULL) |
1469 | symbol = ""; | |
1470 | ||
1471 | if (!have_full_symbols () | |
1472 | && !have_partial_symbols () | |
1473 | && !have_minimal_symbols ()) | |
1474 | throw_error (NOT_FOUND_ERROR, | |
1475 | _("No symbol table is loaded. Use the \"file\" command.")); | |
1476 | ||
1477 | /* If SYMBOL starts with '$', the user attempted to either lookup | |
1478 | a function/variable in his code starting with '$' or an internal | |
1479 | variable of that name. Since we do not know which, be concise and | |
1480 | explain both possibilities. */ | |
1481 | if (*symbol == '$') | |
1482 | { | |
1483 | if (filename) | |
1484 | throw_error (NOT_FOUND_ERROR, | |
1485 | _("Undefined convenience variable or function \"%s\" " | |
1486 | "not defined in \"%s\"."), symbol, filename); | |
1487 | else | |
1488 | throw_error (NOT_FOUND_ERROR, | |
1489 | _("Undefined convenience variable or function \"%s\" " | |
1490 | "not defined."), symbol); | |
1491 | } | |
1492 | else | |
1493 | { | |
1494 | if (filename) | |
1495 | throw_error (NOT_FOUND_ERROR, | |
1496 | _("Function \"%s\" not defined in \"%s\"."), | |
1497 | symbol, filename); | |
1498 | else | |
1499 | throw_error (NOT_FOUND_ERROR, | |
1500 | _("Function \"%s\" not defined."), symbol); | |
1501 | } | |
3d50dd94 JK |
1502 | } |
1503 | ||
40e084e1 KS |
1504 | /* Throw an appropriate error when an unexpected token is encountered |
1505 | in the input. */ | |
94af9270 | 1506 | |
40e084e1 KS |
1507 | static void ATTRIBUTE_NORETURN |
1508 | unexpected_linespec_error (linespec_parser *parser) | |
94af9270 | 1509 | { |
40e084e1 KS |
1510 | linespec_token token; |
1511 | static const char * token_type_strings[] | |
1512 | = {"keyword", "colon", "string", "number", "comma", "end of input"}; | |
94af9270 | 1513 | |
40e084e1 KS |
1514 | /* Get the token that generated the error. */ |
1515 | token = linespec_lexer_lex_one (parser); | |
94af9270 | 1516 | |
40e084e1 KS |
1517 | /* Finally, throw the error. */ |
1518 | if (token.type == LSTOKEN_STRING || token.type == LSTOKEN_NUMBER | |
1519 | || token.type == LSTOKEN_KEYWORD) | |
94af9270 | 1520 | { |
40e084e1 | 1521 | char *string; |
40e084e1 KS |
1522 | |
1523 | string = copy_token_string (token); | |
78cc6c2d | 1524 | make_cleanup (xfree, string); |
40e084e1 KS |
1525 | throw_error (GENERIC_ERROR, |
1526 | _("malformed linespec error: unexpected %s, \"%s\""), | |
1527 | token_type_strings[token.type], string); | |
1528 | } | |
1529 | else | |
1530 | throw_error (GENERIC_ERROR, | |
1531 | _("malformed linespec error: unexpected %s"), | |
1532 | token_type_strings[token.type]); | |
1533 | } | |
1534 | ||
00e52e53 KS |
1535 | /* Throw an undefined label error. */ |
1536 | ||
1537 | static void ATTRIBUTE_NORETURN | |
1538 | undefined_label_error (const char *function, const char *label) | |
1539 | { | |
1540 | if (function != NULL) | |
1541 | throw_error (NOT_FOUND_ERROR, | |
1542 | _("No label \"%s\" defined in function \"%s\"."), | |
1543 | label, function); | |
1544 | else | |
1545 | throw_error (NOT_FOUND_ERROR, | |
1546 | _("No label \"%s\" defined in current function."), | |
1547 | label); | |
1548 | } | |
1549 | ||
1550 | /* Throw a source file not found error. */ | |
1551 | ||
1552 | static void ATTRIBUTE_NORETURN | |
1553 | source_file_not_found_error (const char *name) | |
1554 | { | |
1555 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), name); | |
1556 | } | |
1557 | ||
87f0e720 | 1558 | /* See description in linespec.h. */ |
40e084e1 | 1559 | |
87f0e720 | 1560 | struct line_offset |
09cf2b22 | 1561 | linespec_parse_line_offset (const char *string) |
40e084e1 | 1562 | { |
87f0e720 | 1563 | const char *start = string; |
40e084e1 KS |
1564 | struct line_offset line_offset = {0, LINE_OFFSET_NONE}; |
1565 | ||
1566 | if (*string == '+') | |
1567 | { | |
1568 | line_offset.sign = LINE_OFFSET_PLUS; | |
1569 | ++string; | |
1570 | } | |
1571 | else if (*string == '-') | |
1572 | { | |
1573 | line_offset.sign = LINE_OFFSET_MINUS; | |
1574 | ++string; | |
1575 | } | |
1576 | ||
87f0e720 KS |
1577 | if (*string != '\0' && !isdigit (*string)) |
1578 | error (_("malformed line offset: \"%s\""), start); | |
1579 | ||
40e084e1 KS |
1580 | /* Right now, we only allow base 10 for offsets. */ |
1581 | line_offset.offset = atoi (string); | |
1582 | return line_offset; | |
1583 | } | |
1584 | ||
1585 | /* Parse the basic_spec in PARSER's input. */ | |
1586 | ||
1587 | static void | |
1588 | linespec_parse_basic (linespec_parser *parser) | |
1589 | { | |
1590 | char *name; | |
1591 | linespec_token token; | |
1592 | VEC (symbolp) *symbols, *labels; | |
f60e2d5c | 1593 | VEC (bound_minimal_symbol_d) *minimal_symbols; |
40e084e1 KS |
1594 | struct cleanup *cleanup; |
1595 | ||
1596 | /* Get the next token. */ | |
1597 | token = linespec_lexer_lex_one (parser); | |
1598 | ||
1599 | /* If it is EOI or KEYWORD, issue an error. */ | |
1600 | if (token.type == LSTOKEN_KEYWORD || token.type == LSTOKEN_EOI) | |
1601 | unexpected_linespec_error (parser); | |
1602 | /* If it is a LSTOKEN_NUMBER, we have an offset. */ | |
1603 | else if (token.type == LSTOKEN_NUMBER) | |
1604 | { | |
1605 | /* Record the line offset and get the next token. */ | |
1606 | name = copy_token_string (token); | |
1607 | cleanup = make_cleanup (xfree, name); | |
00e52e53 | 1608 | PARSER_EXPLICIT (parser)->line_offset = linespec_parse_line_offset (name); |
40e084e1 KS |
1609 | do_cleanups (cleanup); |
1610 | ||
1611 | /* Get the next token. */ | |
1612 | token = linespec_lexer_consume_token (parser); | |
1613 | ||
1614 | /* If the next token is a comma, stop parsing and return. */ | |
1615 | if (token.type == LSTOKEN_COMMA) | |
1616 | return; | |
1617 | ||
1618 | /* If the next token is anything but EOI or KEYWORD, issue | |
1619 | an error. */ | |
1620 | if (token.type != LSTOKEN_KEYWORD && token.type != LSTOKEN_EOI) | |
1621 | unexpected_linespec_error (parser); | |
1622 | } | |
1623 | ||
1624 | if (token.type == LSTOKEN_KEYWORD || token.type == LSTOKEN_EOI) | |
1625 | return; | |
1626 | ||
1627 | /* Next token must be LSTOKEN_STRING. */ | |
1628 | if (token.type != LSTOKEN_STRING) | |
1629 | unexpected_linespec_error (parser); | |
1630 | ||
1631 | /* The current token will contain the name of a function, method, | |
1632 | or label. */ | |
1633 | name = copy_token_string (token); | |
1634 | cleanup = make_cleanup (xfree, name); | |
1635 | ||
1636 | /* Try looking it up as a function/method. */ | |
1637 | find_linespec_symbols (PARSER_STATE (parser), | |
1638 | PARSER_RESULT (parser)->file_symtabs, name, | |
1639 | &symbols, &minimal_symbols); | |
1640 | ||
1641 | if (symbols != NULL || minimal_symbols != NULL) | |
1642 | { | |
1643 | PARSER_RESULT (parser)->function_symbols = symbols; | |
1644 | PARSER_RESULT (parser)->minimal_symbols = minimal_symbols; | |
00e52e53 | 1645 | PARSER_EXPLICIT (parser)->function_name = name; |
40e084e1 KS |
1646 | symbols = NULL; |
1647 | discard_cleanups (cleanup); | |
1648 | } | |
1649 | else | |
1650 | { | |
1651 | /* NAME was not a function or a method. So it must be a label | |
b4013987 | 1652 | name or user specified variable like "break foo.c:$zippo". */ |
40e084e1 KS |
1653 | labels = find_label_symbols (PARSER_STATE (parser), NULL, |
1654 | &symbols, name); | |
1655 | if (labels != NULL) | |
94af9270 | 1656 | { |
40e084e1 KS |
1657 | PARSER_RESULT (parser)->labels.label_symbols = labels; |
1658 | PARSER_RESULT (parser)->labels.function_symbols = symbols; | |
00e52e53 | 1659 | PARSER_EXPLICIT (parser)->label_name = name; |
40e084e1 KS |
1660 | symbols = NULL; |
1661 | discard_cleanups (cleanup); | |
1662 | } | |
b4013987 AA |
1663 | else if (token.type == LSTOKEN_STRING |
1664 | && *LS_TOKEN_STOKEN (token).ptr == '$') | |
1665 | { | |
1666 | /* User specified a convenience variable or history value. */ | |
00e52e53 | 1667 | PARSER_EXPLICIT (parser)->line_offset |
b4013987 AA |
1668 | = linespec_parse_variable (PARSER_STATE (parser), name); |
1669 | ||
00e52e53 | 1670 | if (PARSER_EXPLICIT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN) |
b4013987 AA |
1671 | { |
1672 | /* The user-specified variable was not valid. Do not | |
1673 | throw an error here. parse_linespec will do it for us. */ | |
00e52e53 | 1674 | PARSER_EXPLICIT (parser)->function_name = name; |
b4013987 AA |
1675 | discard_cleanups (cleanup); |
1676 | return; | |
1677 | } | |
c888a17d KS |
1678 | |
1679 | /* The convenience variable/history value parsed correctly. | |
1680 | NAME is no longer needed. */ | |
1681 | do_cleanups (cleanup); | |
b4013987 | 1682 | } |
40e084e1 KS |
1683 | else |
1684 | { | |
1685 | /* The name is also not a label. Abort parsing. Do not throw | |
1686 | an error here. parse_linespec will do it for us. */ | |
1687 | ||
1688 | /* Save a copy of the name we were trying to lookup. */ | |
00e52e53 | 1689 | PARSER_EXPLICIT (parser)->function_name = name; |
40e084e1 KS |
1690 | discard_cleanups (cleanup); |
1691 | return; | |
1692 | } | |
1693 | } | |
1694 | ||
1695 | /* Get the next token. */ | |
1696 | token = linespec_lexer_consume_token (parser); | |
1697 | ||
1698 | if (token.type == LSTOKEN_COLON) | |
1699 | { | |
1700 | /* User specified a label or a lineno. */ | |
1701 | token = linespec_lexer_consume_token (parser); | |
1702 | ||
1703 | if (token.type == LSTOKEN_NUMBER) | |
1704 | { | |
1705 | /* User specified an offset. Record the line offset and | |
1706 | get the next token. */ | |
1707 | name = copy_token_string (token); | |
1708 | cleanup = make_cleanup (xfree, name); | |
00e52e53 | 1709 | PARSER_EXPLICIT (parser)->line_offset |
40e084e1 KS |
1710 | = linespec_parse_line_offset (name); |
1711 | do_cleanups (cleanup); | |
1712 | ||
1713 | /* Ge the next token. */ | |
1714 | token = linespec_lexer_consume_token (parser); | |
1715 | } | |
1716 | else if (token.type == LSTOKEN_STRING) | |
1717 | { | |
1718 | /* Grab a copy of the label's name and look it up. */ | |
1719 | name = copy_token_string (token); | |
1720 | cleanup = make_cleanup (xfree, name); | |
1721 | labels = find_label_symbols (PARSER_STATE (parser), | |
1722 | PARSER_RESULT (parser)->function_symbols, | |
1723 | &symbols, name); | |
1724 | ||
1725 | if (labels != NULL) | |
94af9270 | 1726 | { |
40e084e1 KS |
1727 | PARSER_RESULT (parser)->labels.label_symbols = labels; |
1728 | PARSER_RESULT (parser)->labels.function_symbols = symbols; | |
00e52e53 | 1729 | PARSER_EXPLICIT (parser)->label_name = name; |
40e084e1 KS |
1730 | symbols = NULL; |
1731 | discard_cleanups (cleanup); | |
1732 | } | |
1733 | else | |
1734 | { | |
1735 | /* We don't know what it was, but it isn't a label. */ | |
00e52e53 KS |
1736 | undefined_label_error (PARSER_EXPLICIT (parser)->function_name, |
1737 | name); | |
40e084e1 KS |
1738 | } |
1739 | ||
1740 | /* Check for a line offset. */ | |
1741 | token = linespec_lexer_consume_token (parser); | |
1742 | if (token.type == LSTOKEN_COLON) | |
1743 | { | |
1744 | /* Get the next token. */ | |
1745 | token = linespec_lexer_consume_token (parser); | |
1746 | ||
1747 | /* It must be a line offset. */ | |
1748 | if (token.type != LSTOKEN_NUMBER) | |
1749 | unexpected_linespec_error (parser); | |
1750 | ||
1751 | /* Record the lione offset and get the next token. */ | |
1752 | name = copy_token_string (token); | |
1753 | cleanup = make_cleanup (xfree, name); | |
1754 | ||
00e52e53 | 1755 | PARSER_EXPLICIT (parser)->line_offset |
40e084e1 KS |
1756 | = linespec_parse_line_offset (name); |
1757 | do_cleanups (cleanup); | |
1758 | ||
1759 | /* Get the next token. */ | |
1760 | token = linespec_lexer_consume_token (parser); | |
94af9270 KS |
1761 | } |
1762 | } | |
40e084e1 KS |
1763 | else |
1764 | { | |
1765 | /* Trailing ':' in the input. Issue an error. */ | |
1766 | unexpected_linespec_error (parser); | |
1767 | } | |
94af9270 | 1768 | } |
40e084e1 | 1769 | } |
94af9270 | 1770 | |
40e084e1 | 1771 | /* Canonicalize the linespec contained in LS. The result is saved into |
00e52e53 KS |
1772 | STATE->canonical. This function handles both linespec and explicit |
1773 | locations. */ | |
40e084e1 KS |
1774 | |
1775 | static void | |
f00aae0f | 1776 | canonicalize_linespec (struct linespec_state *state, const linespec_p ls) |
40e084e1 | 1777 | { |
00e52e53 | 1778 | struct event_location *canon; |
67994074 | 1779 | struct explicit_location *explicit_loc; |
f00aae0f | 1780 | |
40e084e1 KS |
1781 | /* If canonicalization was not requested, no need to do anything. */ |
1782 | if (!state->canonical) | |
1783 | return; | |
1784 | ||
00e52e53 | 1785 | /* Save everything as an explicit location. */ |
67994074 KS |
1786 | canon = state->canonical->location |
1787 | = new_explicit_location (&ls->explicit_loc); | |
1788 | explicit_loc = get_explicit_location (canon); | |
40e084e1 | 1789 | |
67994074 | 1790 | if (explicit_loc->label_name != NULL) |
a06efdd6 | 1791 | { |
00e52e53 | 1792 | state->canonical->special_display = 1; |
40e084e1 | 1793 | |
67994074 | 1794 | if (explicit_loc->function_name == NULL) |
40e084e1 | 1795 | { |
a06efdd6 KS |
1796 | struct symbol *s; |
1797 | ||
1798 | /* No function was specified, so add the symbol name. */ | |
1799 | gdb_assert (ls->labels.function_symbols != NULL | |
1800 | && (VEC_length (symbolp, ls->labels.function_symbols) | |
1801 | == 1)); | |
1802 | s = VEC_index (symbolp, ls->labels.function_symbols, 0); | |
67994074 | 1803 | explicit_loc->function_name = xstrdup (SYMBOL_NATURAL_NAME (s)); |
40e084e1 | 1804 | } |
a06efdd6 | 1805 | } |
40e084e1 | 1806 | |
00e52e53 KS |
1807 | /* If this location originally came from a linespec, save a string |
1808 | representation of it for display and saving to file. */ | |
1809 | if (state->is_linespec) | |
a06efdd6 | 1810 | { |
67994074 | 1811 | char *linespec = explicit_location_to_linespec (explicit_loc); |
a06efdd6 | 1812 | |
00e52e53 KS |
1813 | set_event_location_string (canon, linespec); |
1814 | xfree (linespec); | |
1815 | } | |
94af9270 | 1816 | } |
c00f8484 | 1817 | |
40e084e1 | 1818 | /* Given a line offset in LS, construct the relevant SALs. */ |
c00f8484 | 1819 | |
40e084e1 KS |
1820 | static struct symtabs_and_lines |
1821 | create_sals_line_offset (struct linespec_state *self, | |
1822 | linespec_p ls) | |
c00f8484 | 1823 | { |
40e084e1 KS |
1824 | struct symtabs_and_lines values; |
1825 | struct symtab_and_line val; | |
1826 | int use_default = 0; | |
c00f8484 | 1827 | |
40e084e1 KS |
1828 | init_sal (&val); |
1829 | values.sals = NULL; | |
1830 | values.nelts = 0; | |
1831 | ||
1832 | /* This is where we need to make sure we have good defaults. | |
1833 | We must guarantee that this section of code is never executed | |
2e47c6ca | 1834 | when we are called with just a function name, since |
40e084e1 KS |
1835 | set_default_source_symtab_and_line uses |
1836 | select_source_symtab that calls us with such an argument. */ | |
1837 | ||
ec94af83 DE |
1838 | if (VEC_length (symtab_ptr, ls->file_symtabs) == 1 |
1839 | && VEC_index (symtab_ptr, ls->file_symtabs, 0) == NULL) | |
3d50dd94 | 1840 | { |
05cba821 JK |
1841 | const char *fullname; |
1842 | ||
40e084e1 | 1843 | set_current_program_space (self->program_space); |
c00f8484 | 1844 | |
40e084e1 KS |
1845 | /* Make sure we have at least a default source line. */ |
1846 | set_default_source_symtab_and_line (); | |
1847 | initialize_defaults (&self->default_symtab, &self->default_line); | |
05cba821 | 1848 | fullname = symtab_to_fullname (self->default_symtab); |
ec94af83 DE |
1849 | VEC_pop (symtab_ptr, ls->file_symtabs); |
1850 | VEC_free (symtab_ptr, ls->file_symtabs); | |
c2f4122d PA |
1851 | ls->file_symtabs = collect_symtabs_from_filename (fullname, |
1852 | self->search_pspace); | |
40e084e1 KS |
1853 | use_default = 1; |
1854 | } | |
c00f8484 | 1855 | |
67994074 KS |
1856 | val.line = ls->explicit_loc.line_offset.offset; |
1857 | switch (ls->explicit_loc.line_offset.sign) | |
40e084e1 KS |
1858 | { |
1859 | case LINE_OFFSET_PLUS: | |
67994074 | 1860 | if (ls->explicit_loc.line_offset.offset == 0) |
40e084e1 KS |
1861 | val.line = 5; |
1862 | if (use_default) | |
1863 | val.line = self->default_line + val.line; | |
1864 | break; | |
1865 | ||
1866 | case LINE_OFFSET_MINUS: | |
67994074 | 1867 | if (ls->explicit_loc.line_offset.offset == 0) |
40e084e1 KS |
1868 | val.line = 15; |
1869 | if (use_default) | |
1870 | val.line = self->default_line - val.line; | |
1871 | else | |
1872 | val.line = -val.line; | |
1873 | break; | |
1874 | ||
1875 | case LINE_OFFSET_NONE: | |
1876 | break; /* No need to adjust val.line. */ | |
1877 | } | |
1878 | ||
1879 | if (self->list_mode) | |
1880 | decode_digits_list_mode (self, ls, &values, val); | |
1881 | else | |
1882 | { | |
1883 | struct linetable_entry *best_entry = NULL; | |
1884 | int *filter; | |
3977b71f | 1885 | const struct block **blocks; |
40e084e1 KS |
1886 | struct cleanup *cleanup; |
1887 | struct symtabs_and_lines intermediate_results; | |
1888 | int i, j; | |
1889 | ||
1890 | intermediate_results.sals = NULL; | |
1891 | intermediate_results.nelts = 0; | |
1892 | ||
1893 | decode_digits_ordinary (self, ls, val.line, &intermediate_results, | |
1894 | &best_entry); | |
1895 | if (intermediate_results.nelts == 0 && best_entry != NULL) | |
1896 | decode_digits_ordinary (self, ls, best_entry->line, | |
1897 | &intermediate_results, &best_entry); | |
1898 | ||
1899 | cleanup = make_cleanup (xfree, intermediate_results.sals); | |
1900 | ||
1901 | /* For optimized code, the compiler can scatter one source line | |
1902 | across disjoint ranges of PC values, even when no duplicate | |
1903 | functions or inline functions are involved. For example, | |
1904 | 'for (;;)' inside a non-template, non-inline, and non-ctor-or-dtor | |
1905 | function can result in two PC ranges. In this case, we don't | |
1906 | want to set a breakpoint on the first PC of each range. To filter | |
1907 | such cases, we use containing blocks -- for each PC found | |
1908 | above, we see if there are other PCs that are in the same | |
1909 | block. If yes, the other PCs are filtered out. */ | |
1910 | ||
1911 | filter = XNEWVEC (int, intermediate_results.nelts); | |
1912 | make_cleanup (xfree, filter); | |
3977b71f | 1913 | blocks = XNEWVEC (const struct block *, intermediate_results.nelts); |
40e084e1 KS |
1914 | make_cleanup (xfree, blocks); |
1915 | ||
1916 | for (i = 0; i < intermediate_results.nelts; ++i) | |
3d50dd94 | 1917 | { |
40e084e1 | 1918 | set_current_program_space (intermediate_results.sals[i].pspace); |
c00f8484 | 1919 | |
40e084e1 KS |
1920 | filter[i] = 1; |
1921 | blocks[i] = block_for_pc_sect (intermediate_results.sals[i].pc, | |
1922 | intermediate_results.sals[i].section); | |
3d50dd94 | 1923 | } |
c00f8484 | 1924 | |
40e084e1 KS |
1925 | for (i = 0; i < intermediate_results.nelts; ++i) |
1926 | { | |
1927 | if (blocks[i] != NULL) | |
1928 | for (j = i + 1; j < intermediate_results.nelts; ++j) | |
1929 | { | |
1930 | if (blocks[j] == blocks[i]) | |
1931 | { | |
1932 | filter[j] = 0; | |
1933 | break; | |
1934 | } | |
1935 | } | |
1936 | } | |
c00f8484 | 1937 | |
40e084e1 KS |
1938 | for (i = 0; i < intermediate_results.nelts; ++i) |
1939 | if (filter[i]) | |
1940 | { | |
1941 | struct symbol *sym = (blocks[i] | |
1942 | ? block_containing_function (blocks[i]) | |
1943 | : NULL); | |
3d50dd94 | 1944 | |
40e084e1 KS |
1945 | if (self->funfirstline) |
1946 | skip_prologue_sal (&intermediate_results.sals[i]); | |
1947 | /* Make sure the line matches the request, not what was | |
1948 | found. */ | |
1949 | intermediate_results.sals[i].line = val.line; | |
1950 | add_sal_to_sals (self, &values, &intermediate_results.sals[i], | |
66f1999b | 1951 | sym ? SYMBOL_NATURAL_NAME (sym) : NULL, 0); |
40e084e1 | 1952 | } |
3d50dd94 | 1953 | |
40e084e1 | 1954 | do_cleanups (cleanup); |
f17170e5 | 1955 | } |
c00f8484 | 1956 | |
40e084e1 KS |
1957 | if (values.nelts == 0) |
1958 | { | |
67994074 | 1959 | if (ls->explicit_loc.source_filename) |
40e084e1 | 1960 | throw_error (NOT_FOUND_ERROR, _("No line %d in file \"%s\"."), |
67994074 | 1961 | val.line, ls->explicit_loc.source_filename); |
40e084e1 KS |
1962 | else |
1963 | throw_error (NOT_FOUND_ERROR, _("No line %d in the current file."), | |
1964 | val.line); | |
1965 | } | |
3d50dd94 | 1966 | |
40e084e1 | 1967 | return values; |
c00f8484 KS |
1968 | } |
1969 | ||
a06efdd6 KS |
1970 | /* Convert the given ADDRESS into SaLs. */ |
1971 | ||
1972 | static struct symtabs_and_lines | |
1973 | convert_address_location_to_sals (struct linespec_state *self, | |
1974 | CORE_ADDR address) | |
1975 | { | |
1976 | struct symtab_and_line sal; | |
1977 | struct symtabs_and_lines sals = {NULL, 0}; | |
1978 | ||
1979 | sal = find_pc_line (address, 0); | |
1980 | sal.pc = address; | |
1981 | sal.section = find_pc_overlay (address); | |
1982 | sal.explicit_pc = 1; | |
1983 | add_sal_to_sals (self, &sals, &sal, core_addr_to_string (address), 1); | |
1984 | ||
1985 | return sals; | |
1986 | } | |
1987 | ||
40e084e1 KS |
1988 | /* Create and return SALs from the linespec LS. */ |
1989 | ||
1990 | static struct symtabs_and_lines | |
1991 | convert_linespec_to_sals (struct linespec_state *state, linespec_p ls) | |
1992 | { | |
1993 | struct symtabs_and_lines sals = {NULL, 0}; | |
1994 | ||
a06efdd6 | 1995 | if (ls->labels.label_symbols != NULL) |
40e084e1 KS |
1996 | { |
1997 | /* We have just a bunch of functions/methods or labels. */ | |
1998 | int i; | |
1999 | struct symtab_and_line sal; | |
2000 | struct symbol *sym; | |
2001 | ||
2002 | for (i = 0; VEC_iterate (symbolp, ls->labels.label_symbols, i, sym); ++i) | |
2003 | { | |
08be3fe3 | 2004 | struct program_space *pspace = SYMTAB_PSPACE (symbol_symtab (sym)); |
fdbb204b TT |
2005 | |
2006 | if (symbol_to_sal (&sal, state->funfirstline, sym) | |
2007 | && maybe_add_address (state->addr_set, pspace, sal.pc)) | |
64b92e45 KS |
2008 | add_sal_to_sals (state, &sals, &sal, |
2009 | SYMBOL_NATURAL_NAME (sym), 0); | |
40e084e1 KS |
2010 | } |
2011 | } | |
2012 | else if (ls->function_symbols != NULL || ls->minimal_symbols != NULL) | |
2013 | { | |
2014 | /* We have just a bunch of functions and/or methods. */ | |
2015 | int i; | |
2016 | struct symtab_and_line sal; | |
2017 | struct symbol *sym; | |
f60e2d5c | 2018 | bound_minimal_symbol_d *elem; |
40e084e1 KS |
2019 | struct program_space *pspace; |
2020 | ||
2021 | if (ls->function_symbols != NULL) | |
2022 | { | |
2023 | /* Sort symbols so that symbols with the same program space are next | |
2024 | to each other. */ | |
2025 | qsort (VEC_address (symbolp, ls->function_symbols), | |
2026 | VEC_length (symbolp, ls->function_symbols), | |
2027 | sizeof (symbolp), compare_symbols); | |
2028 | ||
2029 | for (i = 0; VEC_iterate (symbolp, ls->function_symbols, i, sym); ++i) | |
2030 | { | |
08be3fe3 | 2031 | pspace = SYMTAB_PSPACE (symbol_symtab (sym)); |
40e084e1 | 2032 | set_current_program_space (pspace); |
64b92e45 KS |
2033 | if (symbol_to_sal (&sal, state->funfirstline, sym) |
2034 | && maybe_add_address (state->addr_set, pspace, sal.pc)) | |
66f1999b KS |
2035 | add_sal_to_sals (state, &sals, &sal, |
2036 | SYMBOL_NATURAL_NAME (sym), 0); | |
40e084e1 KS |
2037 | } |
2038 | } | |
2039 | ||
2040 | if (ls->minimal_symbols != NULL) | |
2041 | { | |
2042 | /* Sort minimal symbols by program space, too. */ | |
f60e2d5c TT |
2043 | qsort (VEC_address (bound_minimal_symbol_d, ls->minimal_symbols), |
2044 | VEC_length (bound_minimal_symbol_d, ls->minimal_symbols), | |
2045 | sizeof (bound_minimal_symbol_d), compare_msymbols); | |
40e084e1 KS |
2046 | |
2047 | for (i = 0; | |
f60e2d5c TT |
2048 | VEC_iterate (bound_minimal_symbol_d, ls->minimal_symbols, |
2049 | i, elem); | |
40e084e1 KS |
2050 | ++i) |
2051 | { | |
001822aa | 2052 | pspace = elem->objfile->pspace; |
40e084e1 KS |
2053 | set_current_program_space (pspace); |
2054 | minsym_found (state, elem->objfile, elem->minsym, &sals); | |
2055 | } | |
2056 | } | |
2057 | } | |
67994074 | 2058 | else if (ls->explicit_loc.line_offset.sign != LINE_OFFSET_UNKNOWN) |
40e084e1 KS |
2059 | { |
2060 | /* Only an offset was specified. */ | |
2061 | sals = create_sals_line_offset (state, ls); | |
2062 | ||
2063 | /* Make sure we have a filename for canonicalization. */ | |
67994074 | 2064 | if (ls->explicit_loc.source_filename == NULL) |
05cba821 JK |
2065 | { |
2066 | const char *fullname = symtab_to_fullname (state->default_symtab); | |
2067 | ||
e93ba630 JK |
2068 | /* It may be more appropriate to keep DEFAULT_SYMTAB in its symtab |
2069 | form so that displaying SOURCE_FILENAME can follow the current | |
2070 | FILENAME_DISPLAY_STRING setting. But as it is used only rarely | |
2071 | it has been kept for code simplicity only in absolute form. */ | |
67994074 | 2072 | ls->explicit_loc.source_filename = xstrdup (fullname); |
05cba821 | 2073 | } |
40e084e1 KS |
2074 | } |
2075 | else | |
2076 | { | |
2077 | /* We haven't found any results... */ | |
2078 | return sals; | |
2079 | } | |
2080 | ||
2081 | canonicalize_linespec (state, ls); | |
2082 | ||
2083 | if (sals.nelts > 0 && state->canonical != NULL) | |
2084 | state->canonical->pre_expanded = 1; | |
2085 | ||
2086 | return sals; | |
2087 | } | |
50641945 | 2088 | |
67994074 | 2089 | /* Convert the explicit location EXPLICIT_LOC into SaLs. */ |
00e52e53 KS |
2090 | |
2091 | static struct symtabs_and_lines | |
2092 | convert_explicit_location_to_sals (struct linespec_state *self, | |
2093 | linespec_p result, | |
67994074 | 2094 | const struct explicit_location *explicit_loc) |
00e52e53 KS |
2095 | { |
2096 | VEC (symbolp) *symbols, *labels; | |
2097 | VEC (bound_minimal_symbol_d) *minimal_symbols; | |
2098 | ||
67994074 | 2099 | if (explicit_loc->source_filename != NULL) |
00e52e53 KS |
2100 | { |
2101 | TRY | |
2102 | { | |
2103 | result->file_symtabs | |
c2f4122d PA |
2104 | = symtabs_from_filename (explicit_loc->source_filename, |
2105 | self->search_pspace); | |
00e52e53 KS |
2106 | } |
2107 | CATCH (except, RETURN_MASK_ERROR) | |
2108 | { | |
67994074 | 2109 | source_file_not_found_error (explicit_loc->source_filename); |
00e52e53 KS |
2110 | } |
2111 | END_CATCH | |
67994074 KS |
2112 | result->explicit_loc.source_filename |
2113 | = xstrdup (explicit_loc->source_filename); | |
00e52e53 KS |
2114 | } |
2115 | else | |
2116 | { | |
2117 | /* A NULL entry means to use the default symtab. */ | |
2118 | VEC_safe_push (symtab_ptr, result->file_symtabs, NULL); | |
2119 | } | |
2120 | ||
67994074 | 2121 | if (explicit_loc->function_name != NULL) |
00e52e53 KS |
2122 | { |
2123 | find_linespec_symbols (self, result->file_symtabs, | |
67994074 | 2124 | explicit_loc->function_name, &symbols, |
00e52e53 KS |
2125 | &minimal_symbols); |
2126 | ||
2127 | if (symbols == NULL && minimal_symbols == NULL) | |
67994074 KS |
2128 | symbol_not_found_error (explicit_loc->function_name, |
2129 | result->explicit_loc.source_filename); | |
00e52e53 | 2130 | |
67994074 KS |
2131 | result->explicit_loc.function_name |
2132 | = xstrdup (explicit_loc->function_name); | |
00e52e53 KS |
2133 | result->function_symbols = symbols; |
2134 | result->minimal_symbols = minimal_symbols; | |
2135 | } | |
2136 | ||
67994074 | 2137 | if (explicit_loc->label_name != NULL) |
00e52e53 KS |
2138 | { |
2139 | symbols = NULL; | |
2140 | labels = find_label_symbols (self, result->function_symbols, | |
67994074 | 2141 | &symbols, explicit_loc->label_name); |
00e52e53 KS |
2142 | |
2143 | if (labels == NULL) | |
67994074 KS |
2144 | undefined_label_error (result->explicit_loc.function_name, |
2145 | explicit_loc->label_name); | |
00e52e53 | 2146 | |
67994074 | 2147 | result->explicit_loc.label_name = xstrdup (explicit_loc->label_name); |
00e52e53 KS |
2148 | result->labels.label_symbols = labels; |
2149 | result->labels.function_symbols = symbols; | |
2150 | } | |
2151 | ||
67994074 KS |
2152 | if (explicit_loc->line_offset.sign != LINE_OFFSET_UNKNOWN) |
2153 | result->explicit_loc.line_offset = explicit_loc->line_offset; | |
00e52e53 KS |
2154 | |
2155 | return convert_linespec_to_sals (self, result); | |
2156 | } | |
2157 | ||
40e084e1 | 2158 | /* Parse a string that specifies a linespec. |
50641945 | 2159 | |
40e084e1 | 2160 | The basic grammar of linespecs: |
50641945 | 2161 | |
a06efdd6 | 2162 | linespec -> var_spec | basic_spec |
40e084e1 | 2163 | var_spec -> '$' (STRING | NUMBER) |
50641945 | 2164 | |
40e084e1 KS |
2165 | basic_spec -> file_offset_spec | function_spec | label_spec |
2166 | file_offset_spec -> opt_file_spec offset_spec | |
2167 | function_spec -> opt_file_spec function_name_spec opt_label_spec | |
2168 | label_spec -> label_name_spec | |
50641945 | 2169 | |
40e084e1 KS |
2170 | opt_file_spec -> "" | file_name_spec ':' |
2171 | opt_label_spec -> "" | ':' label_name_spec | |
2172 | ||
2173 | file_name_spec -> STRING | |
2174 | function_name_spec -> STRING | |
2175 | label_name_spec -> STRING | |
2176 | function_name_spec -> STRING | |
2177 | offset_spec -> NUMBER | |
2178 | -> '+' NUMBER | |
2179 | -> '-' NUMBER | |
2180 | ||
2181 | This may all be followed by several keywords such as "if EXPR", | |
2182 | which we ignore. | |
2183 | ||
2184 | A comma will terminate parsing. | |
2185 | ||
2186 | The function may be an undebuggable function found in minimal symbol table. | |
50641945 FN |
2187 | |
2188 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2189 | of real code inside a function when a function is specified, and it is | |
2190 | not OK to specify a variable or type to get its line number. | |
2191 | ||
2192 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
2193 | It defaults to current_source_symtab. | |
2194 | DEFAULT_LINE specifies the line number to use for relative | |
2195 | line numbers (that start with signs). Defaults to current_source_line. | |
2196 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
1777feb0 | 2197 | line specs there if necessary. Currently overloaded member functions and |
50641945 | 2198 | line numbers or static functions without a filename yield a canonical |
1777feb0 | 2199 | line spec. The array and the line spec strings are allocated on the heap, |
50641945 FN |
2200 | it is the callers responsibility to free them. |
2201 | ||
2202 | Note that it is possible to return zero for the symtab | |
2203 | if no file is validly specified. Callers must check that. | |
58438ac1 | 2204 | Also, the line number returned may be invalid. */ |
50641945 | 2205 | |
f00aae0f | 2206 | /* Parse the linespec in ARG. */ |
50641945 | 2207 | |
ad32032e | 2208 | static struct symtabs_and_lines |
f00aae0f | 2209 | parse_linespec (linespec_parser *parser, const char *arg) |
50641945 | 2210 | { |
40e084e1 KS |
2211 | linespec_token token; |
2212 | struct symtabs_and_lines values; | |
7556d4a4 | 2213 | struct gdb_exception file_exception = exception_none; |
40e084e1 KS |
2214 | struct cleanup *cleanup; |
2215 | ||
2216 | /* A special case to start. It has become quite popular for | |
2217 | IDEs to work around bugs in the previous parser by quoting | |
2218 | the entire linespec, so we attempt to deal with this nicely. */ | |
2219 | parser->is_quote_enclosed = 0; | |
f00aae0f KS |
2220 | if (!is_ada_operator (arg) |
2221 | && strchr (linespec_quote_characters, *arg) != NULL) | |
40e084e1 KS |
2222 | { |
2223 | const char *end; | |
9ef07c8c | 2224 | |
f00aae0f | 2225 | end = skip_quote_char (arg + 1, *arg); |
40e084e1 | 2226 | if (end != NULL && is_closing_quote_enclosed (end)) |
136e1c30 | 2227 | { |
f00aae0f | 2228 | /* Here's the special case. Skip ARG past the initial |
40e084e1 | 2229 | quote. */ |
f00aae0f | 2230 | ++arg; |
40e084e1 | 2231 | parser->is_quote_enclosed = 1; |
136e1c30 DE |
2232 | } |
2233 | } | |
e8eb7bc5 | 2234 | |
f00aae0f KS |
2235 | parser->lexer.saved_arg = arg; |
2236 | parser->lexer.stream = arg; | |
d2630e69 | 2237 | |
40e084e1 KS |
2238 | /* Initialize the default symtab and line offset. */ |
2239 | initialize_defaults (&PARSER_STATE (parser)->default_symtab, | |
2240 | &PARSER_STATE (parser)->default_line); | |
d2630e69 | 2241 | |
40e084e1 | 2242 | /* Objective-C shortcut. */ |
f00aae0f | 2243 | values = decode_objc (PARSER_STATE (parser), PARSER_RESULT (parser), arg); |
40e084e1 KS |
2244 | if (values.sals != NULL) |
2245 | return values; | |
e0881a8e | 2246 | |
40e084e1 | 2247 | /* Start parsing. */ |
d2630e69 | 2248 | |
40e084e1 KS |
2249 | /* Get the first token. */ |
2250 | token = linespec_lexer_lex_one (parser); | |
50641945 | 2251 | |
40e084e1 | 2252 | /* It must be either LSTOKEN_STRING or LSTOKEN_NUMBER. */ |
a06efdd6 | 2253 | if (token.type == LSTOKEN_STRING && *LS_TOKEN_STOKEN (token).ptr == '$') |
40e084e1 KS |
2254 | { |
2255 | char *var; | |
50641945 | 2256 | |
40e084e1 | 2257 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
ec94af83 | 2258 | VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL); |
dcf9f4ab | 2259 | |
40e084e1 KS |
2260 | /* User specified a convenience variable or history value. */ |
2261 | var = copy_token_string (token); | |
2262 | cleanup = make_cleanup (xfree, var); | |
00e52e53 | 2263 | PARSER_EXPLICIT (parser)->line_offset |
40e084e1 | 2264 | = linespec_parse_variable (PARSER_STATE (parser), var); |
cf4ded82 | 2265 | do_cleanups (cleanup); |
f8eba3c6 | 2266 | |
40e084e1 KS |
2267 | /* If a line_offset wasn't found (VAR is the name of a user |
2268 | variable/function), then skip to normal symbol processing. */ | |
00e52e53 | 2269 | if (PARSER_EXPLICIT (parser)->line_offset.sign != LINE_OFFSET_UNKNOWN) |
40e084e1 | 2270 | { |
40e084e1 KS |
2271 | /* Consume this token. */ |
2272 | linespec_lexer_consume_token (parser); | |
dcf9f4ab | 2273 | |
40e084e1 | 2274 | goto convert_to_sals; |
50641945 | 2275 | } |
40e084e1 KS |
2276 | } |
2277 | else if (token.type != LSTOKEN_STRING && token.type != LSTOKEN_NUMBER) | |
2278 | unexpected_linespec_error (parser); | |
50641945 | 2279 | |
40e084e1 KS |
2280 | /* Shortcut: If the next token is not LSTOKEN_COLON, we know that |
2281 | this token cannot represent a filename. */ | |
2282 | token = linespec_lexer_peek_token (parser); | |
0e0b460e | 2283 | |
40e084e1 | 2284 | if (token.type == LSTOKEN_COLON) |
0e0b460e | 2285 | { |
40e084e1 | 2286 | char *user_filename; |
0e0b460e | 2287 | |
40e084e1 KS |
2288 | /* Get the current token again and extract the filename. */ |
2289 | token = linespec_lexer_lex_one (parser); | |
2290 | user_filename = copy_token_string (token); | |
50641945 | 2291 | |
40e084e1 | 2292 | /* Check if the input is a filename. */ |
492d29ea | 2293 | TRY |
40e084e1 KS |
2294 | { |
2295 | PARSER_RESULT (parser)->file_symtabs | |
c2f4122d PA |
2296 | = symtabs_from_filename (user_filename, |
2297 | PARSER_STATE (parser)->search_pspace); | |
40e084e1 | 2298 | } |
492d29ea | 2299 | CATCH (ex, RETURN_MASK_ERROR) |
7556d4a4 PA |
2300 | { |
2301 | file_exception = ex; | |
2302 | } | |
492d29ea | 2303 | END_CATCH |
50641945 | 2304 | |
40e084e1 KS |
2305 | if (file_exception.reason >= 0) |
2306 | { | |
2307 | /* Symtabs were found for the file. Record the filename. */ | |
00e52e53 | 2308 | PARSER_EXPLICIT (parser)->source_filename = user_filename; |
f8eba3c6 | 2309 | |
40e084e1 KS |
2310 | /* Get the next token. */ |
2311 | token = linespec_lexer_consume_token (parser); | |
50641945 | 2312 | |
40e084e1 KS |
2313 | /* This is LSTOKEN_COLON; consume it. */ |
2314 | linespec_lexer_consume_token (parser); | |
2315 | } | |
2316 | else | |
2317 | { | |
2318 | /* No symtabs found -- discard user_filename. */ | |
2319 | xfree (user_filename); | |
50641945 | 2320 | |
40e084e1 | 2321 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
ec94af83 | 2322 | VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL); |
40e084e1 | 2323 | } |
50641945 | 2324 | } |
40e084e1 KS |
2325 | /* If the next token is not EOI, KEYWORD, or COMMA, issue an error. */ |
2326 | else if (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD | |
2327 | && token.type != LSTOKEN_COMMA) | |
d2630e69 | 2328 | { |
40e084e1 KS |
2329 | /* TOKEN is the _next_ token, not the one currently in the parser. |
2330 | Consuming the token will give the correct error message. */ | |
2331 | linespec_lexer_consume_token (parser); | |
2332 | unexpected_linespec_error (parser); | |
d2630e69 | 2333 | } |
50641945 FN |
2334 | else |
2335 | { | |
40e084e1 | 2336 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
ec94af83 | 2337 | VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL); |
50641945 | 2338 | } |
50641945 | 2339 | |
40e084e1 KS |
2340 | /* Parse the rest of the linespec. */ |
2341 | linespec_parse_basic (parser); | |
50641945 | 2342 | |
40e084e1 KS |
2343 | if (PARSER_RESULT (parser)->function_symbols == NULL |
2344 | && PARSER_RESULT (parser)->labels.label_symbols == NULL | |
00e52e53 | 2345 | && PARSER_EXPLICIT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN |
40e084e1 | 2346 | && PARSER_RESULT (parser)->minimal_symbols == NULL) |
f8eba3c6 | 2347 | { |
40e084e1 KS |
2348 | /* The linespec didn't parse. Re-throw the file exception if |
2349 | there was one. */ | |
2350 | if (file_exception.reason < 0) | |
2351 | throw_exception (file_exception); | |
0f5238ed | 2352 | |
40e084e1 | 2353 | /* Otherwise, the symbol is not found. */ |
00e52e53 KS |
2354 | symbol_not_found_error (PARSER_EXPLICIT (parser)->function_name, |
2355 | PARSER_EXPLICIT (parser)->source_filename); | |
0f5238ed TT |
2356 | } |
2357 | ||
40e084e1 | 2358 | convert_to_sals: |
9ef07c8c | 2359 | |
40e084e1 KS |
2360 | /* Get the last token and record how much of the input was parsed, |
2361 | if necessary. */ | |
2362 | token = linespec_lexer_lex_one (parser); | |
2363 | if (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD) | |
2364 | PARSER_STREAM (parser) = LS_TOKEN_STOKEN (token).ptr; | |
50641945 | 2365 | |
40e084e1 KS |
2366 | /* Convert the data in PARSER_RESULT to SALs. */ |
2367 | values = convert_linespec_to_sals (PARSER_STATE (parser), | |
2368 | PARSER_RESULT (parser)); | |
f8eba3c6 | 2369 | |
40e084e1 | 2370 | return values; |
413dad4d | 2371 | } |
50641945 | 2372 | |
40e084e1 | 2373 | |
f8eba3c6 | 2374 | /* A constructor for linespec_state. */ |
44fe14ab | 2375 | |
f8eba3c6 TT |
2376 | static void |
2377 | linespec_state_constructor (struct linespec_state *self, | |
40e084e1 | 2378 | int flags, const struct language_defn *language, |
c2f4122d | 2379 | struct program_space *search_pspace, |
f8eba3c6 TT |
2380 | struct symtab *default_symtab, |
2381 | int default_line, | |
2382 | struct linespec_result *canonical) | |
2383 | { | |
2384 | memset (self, 0, sizeof (*self)); | |
40e084e1 | 2385 | self->language = language; |
f8eba3c6 TT |
2386 | self->funfirstline = (flags & DECODE_LINE_FUNFIRSTLINE) ? 1 : 0; |
2387 | self->list_mode = (flags & DECODE_LINE_LIST_MODE) ? 1 : 0; | |
c2f4122d | 2388 | self->search_pspace = search_pspace; |
f8eba3c6 TT |
2389 | self->default_symtab = default_symtab; |
2390 | self->default_line = default_line; | |
2391 | self->canonical = canonical; | |
2392 | self->program_space = current_program_space; | |
2393 | self->addr_set = htab_create_alloc (10, hash_address_entry, eq_address_entry, | |
2394 | xfree, xcalloc, xfree); | |
00e52e53 | 2395 | self->is_linespec = 0; |
f8eba3c6 | 2396 | } |
44fe14ab | 2397 | |
40e084e1 | 2398 | /* Initialize a new linespec parser. */ |
44fe14ab DC |
2399 | |
2400 | static void | |
40e084e1 KS |
2401 | linespec_parser_new (linespec_parser *parser, |
2402 | int flags, const struct language_defn *language, | |
c2f4122d | 2403 | struct program_space *search_pspace, |
40e084e1 KS |
2404 | struct symtab *default_symtab, |
2405 | int default_line, | |
2406 | struct linespec_result *canonical) | |
44fe14ab | 2407 | { |
f00aae0f | 2408 | memset (parser, 0, sizeof (linespec_parser)); |
40e084e1 KS |
2409 | parser->lexer.current.type = LSTOKEN_CONSUMED; |
2410 | memset (PARSER_RESULT (parser), 0, sizeof (struct linespec)); | |
00e52e53 | 2411 | PARSER_EXPLICIT (parser)->line_offset.sign = LINE_OFFSET_UNKNOWN; |
40e084e1 | 2412 | linespec_state_constructor (PARSER_STATE (parser), flags, language, |
c2f4122d | 2413 | search_pspace, |
40e084e1 KS |
2414 | default_symtab, default_line, canonical); |
2415 | } | |
2416 | ||
2417 | /* A destructor for linespec_state. */ | |
44fe14ab | 2418 | |
40e084e1 KS |
2419 | static void |
2420 | linespec_state_destructor (struct linespec_state *self) | |
2421 | { | |
f8eba3c6 TT |
2422 | htab_delete (self->addr_set); |
2423 | } | |
44fe14ab | 2424 | |
40e084e1 KS |
2425 | /* Delete a linespec parser. */ |
2426 | ||
2427 | static void | |
2428 | linespec_parser_delete (void *arg) | |
2429 | { | |
2430 | linespec_parser *parser = (linespec_parser *) arg; | |
2431 | ||
00e52e53 KS |
2432 | xfree (PARSER_EXPLICIT (parser)->source_filename); |
2433 | xfree (PARSER_EXPLICIT (parser)->label_name); | |
2434 | xfree (PARSER_EXPLICIT (parser)->function_name); | |
40e084e1 KS |
2435 | |
2436 | if (PARSER_RESULT (parser)->file_symtabs != NULL) | |
ec94af83 | 2437 | VEC_free (symtab_ptr, PARSER_RESULT (parser)->file_symtabs); |
40e084e1 KS |
2438 | |
2439 | if (PARSER_RESULT (parser)->function_symbols != NULL) | |
2440 | VEC_free (symbolp, PARSER_RESULT (parser)->function_symbols); | |
2441 | ||
2442 | if (PARSER_RESULT (parser)->minimal_symbols != NULL) | |
f60e2d5c | 2443 | VEC_free (bound_minimal_symbol_d, PARSER_RESULT (parser)->minimal_symbols); |
40e084e1 KS |
2444 | |
2445 | if (PARSER_RESULT (parser)->labels.label_symbols != NULL) | |
2446 | VEC_free (symbolp, PARSER_RESULT (parser)->labels.label_symbols); | |
2447 | ||
2448 | if (PARSER_RESULT (parser)->labels.function_symbols != NULL) | |
2449 | VEC_free (symbolp, PARSER_RESULT (parser)->labels.function_symbols); | |
2450 | ||
2451 | linespec_state_destructor (PARSER_STATE (parser)); | |
2452 | } | |
2453 | ||
c7c1b3e9 KS |
2454 | /* See description in linespec.h. */ |
2455 | ||
2456 | void | |
2457 | linespec_lex_to_end (char **stringp) | |
2458 | { | |
2459 | linespec_parser parser; | |
2460 | struct cleanup *cleanup; | |
2461 | linespec_token token; | |
c7c1b3e9 KS |
2462 | const char *orig; |
2463 | ||
2464 | if (stringp == NULL || *stringp == NULL) | |
2465 | return; | |
2466 | ||
c2f4122d | 2467 | linespec_parser_new (&parser, 0, current_language, NULL, NULL, 0, NULL); |
c7c1b3e9 KS |
2468 | cleanup = make_cleanup (linespec_parser_delete, &parser); |
2469 | parser.lexer.saved_arg = *stringp; | |
2470 | PARSER_STREAM (&parser) = orig = *stringp; | |
2471 | ||
2472 | do | |
2473 | { | |
2474 | /* Stop before any comma tokens; we need it to keep it | |
2475 | as the next token in the string. */ | |
2476 | token = linespec_lexer_peek_token (&parser); | |
2477 | if (token.type == LSTOKEN_COMMA) | |
2478 | break; | |
c7c1b3e9 KS |
2479 | token = linespec_lexer_consume_token (&parser); |
2480 | } | |
2481 | while (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD); | |
2482 | ||
2483 | *stringp += PARSER_STREAM (&parser) - orig; | |
2484 | do_cleanups (cleanup); | |
2485 | } | |
2486 | ||
f00aae0f KS |
2487 | /* A helper function for decode_line_full and decode_line_1 to |
2488 | turn LOCATION into symtabs_and_lines. */ | |
2489 | ||
2490 | static struct symtabs_and_lines | |
2491 | event_location_to_sals (linespec_parser *parser, | |
2492 | const struct event_location *location) | |
2493 | { | |
2494 | struct symtabs_and_lines result = {NULL, 0}; | |
2495 | ||
2496 | switch (event_location_type (location)) | |
2497 | { | |
2498 | case LINESPEC_LOCATION: | |
2499 | { | |
00e52e53 | 2500 | PARSER_STATE (parser)->is_linespec = 1; |
f00aae0f KS |
2501 | TRY |
2502 | { | |
2503 | result = parse_linespec (parser, get_linespec_location (location)); | |
2504 | } | |
2505 | CATCH (except, RETURN_MASK_ERROR) | |
2506 | { | |
2507 | throw_exception (except); | |
2508 | } | |
2509 | END_CATCH | |
2510 | } | |
2511 | break; | |
2512 | ||
a06efdd6 | 2513 | case ADDRESS_LOCATION: |
305e13e6 JB |
2514 | { |
2515 | const char *addr_string = get_address_string_location (location); | |
2516 | CORE_ADDR addr = get_address_location (location); | |
2517 | ||
2518 | if (addr_string != NULL) | |
2519 | { | |
2520 | char *expr = xstrdup (addr_string); | |
2521 | const char *const_expr = expr; | |
2522 | struct cleanup *cleanup = make_cleanup (xfree, expr); | |
2523 | ||
2524 | addr = linespec_expression_to_pc (&const_expr); | |
2525 | if (PARSER_STATE (parser)->canonical != NULL) | |
2526 | PARSER_STATE (parser)->canonical->location | |
2527 | = copy_event_location (location); | |
2528 | ||
2529 | do_cleanups (cleanup); | |
2530 | } | |
2531 | ||
2532 | result = convert_address_location_to_sals (PARSER_STATE (parser), | |
2533 | addr); | |
2534 | } | |
a06efdd6 KS |
2535 | break; |
2536 | ||
00e52e53 KS |
2537 | case EXPLICIT_LOCATION: |
2538 | { | |
67994074 | 2539 | const struct explicit_location *explicit_loc; |
00e52e53 | 2540 | |
67994074 | 2541 | explicit_loc = get_explicit_location_const (location); |
00e52e53 KS |
2542 | result = convert_explicit_location_to_sals (PARSER_STATE (parser), |
2543 | PARSER_RESULT (parser), | |
67994074 | 2544 | explicit_loc); |
00e52e53 KS |
2545 | } |
2546 | break; | |
2547 | ||
5b56227b KS |
2548 | case PROBE_LOCATION: |
2549 | /* Probes are handled by their own decoders. */ | |
2550 | gdb_assert_not_reached ("attempt to decode probe location"); | |
2551 | break; | |
2552 | ||
f00aae0f KS |
2553 | default: |
2554 | gdb_assert_not_reached ("unhandled event location type"); | |
2555 | } | |
2556 | ||
2557 | return result; | |
2558 | } | |
2559 | ||
f8eba3c6 | 2560 | /* See linespec.h. */ |
44fe14ab | 2561 | |
f8eba3c6 | 2562 | void |
f00aae0f | 2563 | decode_line_full (const struct event_location *location, int flags, |
c2f4122d | 2564 | struct program_space *search_pspace, |
f8eba3c6 TT |
2565 | struct symtab *default_symtab, |
2566 | int default_line, struct linespec_result *canonical, | |
2567 | const char *select_mode, | |
2568 | const char *filter) | |
44fe14ab | 2569 | { |
f8eba3c6 | 2570 | struct symtabs_and_lines result; |
f8eba3c6 | 2571 | struct cleanup *cleanups; |
f8eba3c6 | 2572 | VEC (const_char_ptr) *filters = NULL; |
40e084e1 KS |
2573 | linespec_parser parser; |
2574 | struct linespec_state *state; | |
f8eba3c6 TT |
2575 | |
2576 | gdb_assert (canonical != NULL); | |
2577 | /* The filter only makes sense for 'all'. */ | |
2578 | gdb_assert (filter == NULL || select_mode == multiple_symbols_all); | |
2579 | gdb_assert (select_mode == NULL | |
2580 | || select_mode == multiple_symbols_all | |
2581 | || select_mode == multiple_symbols_ask | |
2582 | || select_mode == multiple_symbols_cancel); | |
2583 | gdb_assert ((flags & DECODE_LINE_LIST_MODE) == 0); | |
2584 | ||
c2f4122d PA |
2585 | linespec_parser_new (&parser, flags, current_language, |
2586 | search_pspace, default_symtab, | |
40e084e1 KS |
2587 | default_line, canonical); |
2588 | cleanups = make_cleanup (linespec_parser_delete, &parser); | |
f8eba3c6 TT |
2589 | save_current_program_space (); |
2590 | ||
f00aae0f | 2591 | result = event_location_to_sals (&parser, location); |
40e084e1 | 2592 | state = PARSER_STATE (&parser); |
f8eba3c6 TT |
2593 | |
2594 | gdb_assert (result.nelts == 1 || canonical->pre_expanded); | |
f8eba3c6 TT |
2595 | canonical->pre_expanded = 1; |
2596 | ||
66f1999b | 2597 | /* Arrange for allocated canonical names to be freed. */ |
f8eba3c6 TT |
2598 | if (result.nelts > 0) |
2599 | { | |
2600 | int i; | |
2601 | ||
40e084e1 | 2602 | make_cleanup (xfree, state->canonical_names); |
f8eba3c6 TT |
2603 | for (i = 0; i < result.nelts; ++i) |
2604 | { | |
33f448b1 JK |
2605 | gdb_assert (state->canonical_names[i].suffix != NULL); |
2606 | make_cleanup (xfree, state->canonical_names[i].suffix); | |
f8eba3c6 TT |
2607 | } |
2608 | } | |
2609 | ||
2610 | if (select_mode == NULL) | |
2611 | { | |
2612 | if (ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
2613 | select_mode = multiple_symbols_all; | |
2614 | else | |
2615 | select_mode = multiple_symbols_select_mode (); | |
2616 | } | |
2617 | ||
2618 | if (select_mode == multiple_symbols_all) | |
2619 | { | |
2620 | if (filter != NULL) | |
2621 | { | |
2622 | make_cleanup (VEC_cleanup (const_char_ptr), &filters); | |
2623 | VEC_safe_push (const_char_ptr, filters, filter); | |
40e084e1 | 2624 | filter_results (state, &result, filters); |
f8eba3c6 TT |
2625 | } |
2626 | else | |
40e084e1 | 2627 | convert_results_to_lsals (state, &result); |
f8eba3c6 TT |
2628 | } |
2629 | else | |
40e084e1 | 2630 | decode_line_2 (state, &result, select_mode); |
f8eba3c6 TT |
2631 | |
2632 | do_cleanups (cleanups); | |
2633 | } | |
2634 | ||
39cf75f7 DE |
2635 | /* See linespec.h. */ |
2636 | ||
f8eba3c6 | 2637 | struct symtabs_and_lines |
f00aae0f | 2638 | decode_line_1 (const struct event_location *location, int flags, |
c2f4122d | 2639 | struct program_space *search_pspace, |
f8eba3c6 TT |
2640 | struct symtab *default_symtab, |
2641 | int default_line) | |
2642 | { | |
2643 | struct symtabs_and_lines result; | |
40e084e1 | 2644 | linespec_parser parser; |
f8eba3c6 TT |
2645 | struct cleanup *cleanups; |
2646 | ||
c2f4122d PA |
2647 | linespec_parser_new (&parser, flags, current_language, |
2648 | search_pspace, default_symtab, | |
40e084e1 KS |
2649 | default_line, NULL); |
2650 | cleanups = make_cleanup (linespec_parser_delete, &parser); | |
f8eba3c6 TT |
2651 | save_current_program_space (); |
2652 | ||
f00aae0f | 2653 | result = event_location_to_sals (&parser, location); |
40e084e1 | 2654 | |
f8eba3c6 TT |
2655 | do_cleanups (cleanups); |
2656 | return result; | |
2657 | } | |
2658 | ||
39cf75f7 DE |
2659 | /* See linespec.h. */ |
2660 | ||
2661 | struct symtabs_and_lines | |
2662 | decode_line_with_current_source (char *string, int flags) | |
2663 | { | |
2664 | struct symtabs_and_lines sals; | |
2665 | struct symtab_and_line cursal; | |
f00aae0f KS |
2666 | struct event_location *location; |
2667 | struct cleanup *cleanup; | |
39cf75f7 DE |
2668 | |
2669 | if (string == 0) | |
2670 | error (_("Empty line specification.")); | |
2671 | ||
2672 | /* We use whatever is set as the current source line. We do not try | |
2673 | and get a default source symtab+line or it will recursively call us! */ | |
2674 | cursal = get_current_source_symtab_and_line (); | |
2675 | ||
f00aae0f KS |
2676 | location = string_to_event_location (&string, current_language); |
2677 | cleanup = make_cleanup_delete_event_location (location); | |
c2f4122d | 2678 | sals = decode_line_1 (location, flags, NULL, |
39cf75f7 DE |
2679 | cursal.symtab, cursal.line); |
2680 | ||
2681 | if (*string) | |
2682 | error (_("Junk at end of line specification: %s"), string); | |
f00aae0f KS |
2683 | |
2684 | do_cleanups (cleanup); | |
39cf75f7 DE |
2685 | return sals; |
2686 | } | |
2687 | ||
2688 | /* See linespec.h. */ | |
2689 | ||
2690 | struct symtabs_and_lines | |
2691 | decode_line_with_last_displayed (char *string, int flags) | |
2692 | { | |
2693 | struct symtabs_and_lines sals; | |
f00aae0f KS |
2694 | struct event_location *location; |
2695 | struct cleanup *cleanup; | |
39cf75f7 DE |
2696 | |
2697 | if (string == 0) | |
2698 | error (_("Empty line specification.")); | |
2699 | ||
f00aae0f KS |
2700 | location = string_to_event_location (&string, current_language); |
2701 | cleanup = make_cleanup_delete_event_location (location); | |
39cf75f7 | 2702 | if (last_displayed_sal_is_valid ()) |
c2f4122d | 2703 | sals = decode_line_1 (location, flags, NULL, |
39cf75f7 DE |
2704 | get_last_displayed_symtab (), |
2705 | get_last_displayed_line ()); | |
2706 | else | |
c2f4122d | 2707 | sals = decode_line_1 (location, flags, NULL, (struct symtab *) NULL, 0); |
39cf75f7 DE |
2708 | |
2709 | if (*string) | |
2710 | error (_("Junk at end of line specification: %s"), string); | |
f00aae0f KS |
2711 | |
2712 | do_cleanups (cleanup); | |
39cf75f7 DE |
2713 | return sals; |
2714 | } | |
2715 | ||
f8eba3c6 TT |
2716 | \f |
2717 | ||
2718 | /* First, some functions to initialize stuff at the beggining of the | |
2719 | function. */ | |
2720 | ||
2721 | static void | |
2722 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
2723 | { | |
2724 | if (*default_symtab == 0) | |
2725 | { | |
2726 | /* Use whatever we have for the default source line. We don't use | |
2727 | get_current_or_default_symtab_and_line as it can recurse and call | |
2728 | us back! */ | |
2729 | struct symtab_and_line cursal = | |
2730 | get_current_source_symtab_and_line (); | |
2731 | ||
2732 | *default_symtab = cursal.symtab; | |
2733 | *default_line = cursal.line; | |
2734 | } | |
2735 | } | |
2736 | ||
2737 | \f | |
2738 | ||
40e084e1 KS |
2739 | /* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR, |
2740 | advancing EXP_PTR past any parsed text. */ | |
f8eba3c6 | 2741 | |
a06efdd6 | 2742 | CORE_ADDR |
bbc13ae3 | 2743 | linespec_expression_to_pc (const char **exp_ptr) |
f8eba3c6 | 2744 | { |
f8eba3c6 TT |
2745 | if (current_program_space->executing_startup) |
2746 | /* The error message doesn't really matter, because this case | |
2747 | should only hit during breakpoint reset. */ | |
2748 | throw_error (NOT_FOUND_ERROR, _("cannot evaluate expressions while " | |
2749 | "program space is in startup")); | |
2750 | ||
40e084e1 KS |
2751 | (*exp_ptr)++; |
2752 | return value_as_address (parse_to_comma_and_eval (exp_ptr)); | |
0960f083 DC |
2753 | } |
2754 | ||
2755 | \f | |
2756 | ||
d2630e69 AF |
2757 | /* Here's where we recognise an Objective-C Selector. An Objective C |
2758 | selector may be implemented by more than one class, therefore it | |
2759 | may represent more than one method/function. This gives us a | |
2760 | situation somewhat analogous to C++ overloading. If there's more | |
2761 | than one method that could represent the selector, then use some of | |
2762 | the existing C++ code to let the user choose one. */ | |
2763 | ||
f8eba3c6 | 2764 | static struct symtabs_and_lines |
f00aae0f | 2765 | decode_objc (struct linespec_state *self, linespec_p ls, const char *arg) |
d2630e69 | 2766 | { |
f8eba3c6 TT |
2767 | struct collect_info info; |
2768 | VEC (const_char_ptr) *symbol_names = NULL; | |
40e084e1 | 2769 | struct symtabs_and_lines values; |
d7561cbb | 2770 | const char *new_argptr; |
f8eba3c6 TT |
2771 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr), |
2772 | &symbol_names); | |
2773 | ||
2774 | info.state = self; | |
40e084e1 | 2775 | info.file_symtabs = NULL; |
ec94af83 DE |
2776 | VEC_safe_push (symtab_ptr, info.file_symtabs, NULL); |
2777 | make_cleanup (VEC_cleanup (symtab_ptr), &info.file_symtabs); | |
40e084e1 KS |
2778 | info.result.symbols = NULL; |
2779 | info.result.minimal_symbols = NULL; | |
2780 | values.nelts = 0; | |
2781 | values.sals = NULL; | |
f8eba3c6 | 2782 | |
f00aae0f | 2783 | new_argptr = find_imps (arg, &symbol_names); |
f8eba3c6 TT |
2784 | if (VEC_empty (const_char_ptr, symbol_names)) |
2785 | { | |
2786 | do_cleanups (cleanup); | |
40e084e1 | 2787 | return values; |
f8eba3c6 | 2788 | } |
d2630e69 | 2789 | |
f8eba3c6 | 2790 | add_all_symbol_names_from_pspace (&info, NULL, symbol_names); |
d2630e69 | 2791 | |
40e084e1 | 2792 | if (!VEC_empty (symbolp, info.result.symbols) |
f60e2d5c | 2793 | || !VEC_empty (bound_minimal_symbol_d, info.result.minimal_symbols)) |
d2630e69 | 2794 | { |
f8eba3c6 | 2795 | char *saved_arg; |
d2630e69 | 2796 | |
224c3ddb | 2797 | saved_arg = (char *) alloca (new_argptr - arg + 1); |
f00aae0f KS |
2798 | memcpy (saved_arg, arg, new_argptr - arg); |
2799 | saved_arg[new_argptr - arg] = '\0'; | |
d2630e69 | 2800 | |
67994074 | 2801 | ls->explicit_loc.function_name = xstrdup (saved_arg); |
40e084e1 KS |
2802 | ls->function_symbols = info.result.symbols; |
2803 | ls->minimal_symbols = info.result.minimal_symbols; | |
2804 | values = convert_linespec_to_sals (self, ls); | |
2805 | ||
f8eba3c6 | 2806 | if (self->canonical) |
d2630e69 | 2807 | { |
f00aae0f KS |
2808 | char *str; |
2809 | ||
f8eba3c6 | 2810 | self->canonical->pre_expanded = 1; |
f00aae0f | 2811 | |
67994074 | 2812 | if (ls->explicit_loc.source_filename) |
f00aae0f KS |
2813 | { |
2814 | str = xstrprintf ("%s:%s", | |
67994074 | 2815 | ls->explicit_loc.source_filename, saved_arg); |
f00aae0f | 2816 | } |
f8eba3c6 | 2817 | else |
f00aae0f KS |
2818 | str = xstrdup (saved_arg); |
2819 | ||
2820 | make_cleanup (xfree, str); | |
2821 | self->canonical->location = new_linespec_location (&str); | |
d2630e69 | 2822 | } |
d2630e69 AF |
2823 | } |
2824 | ||
f8eba3c6 | 2825 | do_cleanups (cleanup); |
c00f8484 | 2826 | |
40e084e1 | 2827 | return values; |
f8eba3c6 | 2828 | } |
c00f8484 | 2829 | |
f8eba3c6 TT |
2830 | /* An instance of this type is used when collecting prefix symbols for |
2831 | decode_compound. */ | |
17763fd9 | 2832 | |
f8eba3c6 TT |
2833 | struct decode_compound_collector |
2834 | { | |
2835 | /* The result vector. */ | |
2836 | VEC (symbolp) *symbols; | |
3a93a0c2 | 2837 | |
f8eba3c6 TT |
2838 | /* A hash table of all symbols we found. We use this to avoid |
2839 | adding any symbol more than once. */ | |
2840 | htab_t unique_syms; | |
2841 | }; | |
3a93a0c2 | 2842 | |
f8eba3c6 TT |
2843 | /* A callback for iterate_over_symbols that is used by |
2844 | lookup_prefix_sym to collect type symbols. */ | |
c00f8484 | 2845 | |
f8eba3c6 TT |
2846 | static int |
2847 | collect_one_symbol (struct symbol *sym, void *d) | |
2848 | { | |
9a3c8263 SM |
2849 | struct decode_compound_collector *collector |
2850 | = (struct decode_compound_collector *) d; | |
f8eba3c6 TT |
2851 | void **slot; |
2852 | struct type *t; | |
614b3b14 | 2853 | |
f8eba3c6 | 2854 | if (SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
8e704927 | 2855 | return 1; /* Continue iterating. */ |
f8eba3c6 TT |
2856 | |
2857 | t = SYMBOL_TYPE (sym); | |
f168693b | 2858 | t = check_typedef (t); |
f8eba3c6 TT |
2859 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT |
2860 | && TYPE_CODE (t) != TYPE_CODE_UNION | |
2861 | && TYPE_CODE (t) != TYPE_CODE_NAMESPACE) | |
8e704927 | 2862 | return 1; /* Continue iterating. */ |
614b3b14 | 2863 | |
f8eba3c6 TT |
2864 | slot = htab_find_slot (collector->unique_syms, sym, INSERT); |
2865 | if (!*slot) | |
2866 | { | |
2867 | *slot = sym; | |
2868 | VEC_safe_push (symbolp, collector->symbols, sym); | |
2869 | } | |
2870 | ||
8e704927 | 2871 | return 1; /* Continue iterating. */ |
f8eba3c6 | 2872 | } |
93d91629 | 2873 | |
40e084e1 | 2874 | /* Return any symbols corresponding to CLASS_NAME in FILE_SYMTABS. */ |
93d91629 | 2875 | |
f8eba3c6 | 2876 | static VEC (symbolp) * |
ec94af83 | 2877 | lookup_prefix_sym (struct linespec_state *state, VEC (symtab_ptr) *file_symtabs, |
40e084e1 | 2878 | const char *class_name) |
93d91629 | 2879 | { |
f8eba3c6 TT |
2880 | int ix; |
2881 | struct symtab *elt; | |
2882 | struct decode_compound_collector collector; | |
2883 | struct cleanup *outer; | |
2884 | struct cleanup *cleanup; | |
17763fd9 | 2885 | |
f8eba3c6 | 2886 | collector.symbols = NULL; |
40e084e1 | 2887 | outer = make_cleanup (VEC_cleanup (symbolp), &collector.symbols); |
e0881a8e | 2888 | |
f8eba3c6 TT |
2889 | collector.unique_syms = htab_create_alloc (1, htab_hash_pointer, |
2890 | htab_eq_pointer, NULL, | |
2891 | xcalloc, xfree); | |
2892 | cleanup = make_cleanup_htab_delete (collector.unique_syms); | |
e0881a8e | 2893 | |
ec94af83 | 2894 | for (ix = 0; VEC_iterate (symtab_ptr, file_symtabs, ix, elt); ++ix) |
f8eba3c6 TT |
2895 | { |
2896 | if (elt == NULL) | |
2897 | { | |
40e084e1 | 2898 | iterate_over_all_matching_symtabs (state, class_name, STRUCT_DOMAIN, |
f8eba3c6 | 2899 | collect_one_symbol, &collector, |
481860b3 | 2900 | NULL, 0); |
40e084e1 | 2901 | iterate_over_all_matching_symtabs (state, class_name, VAR_DOMAIN, |
f8eba3c6 | 2902 | collect_one_symbol, &collector, |
481860b3 | 2903 | NULL, 0); |
f8eba3c6 TT |
2904 | } |
2905 | else | |
2906 | { | |
f8eba3c6 TT |
2907 | /* Program spaces that are executing startup should have |
2908 | been filtered out earlier. */ | |
2909 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
2910 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
4eeaa230 DE |
2911 | iterate_over_file_blocks (elt, class_name, STRUCT_DOMAIN, |
2912 | collect_one_symbol, &collector); | |
2913 | iterate_over_file_blocks (elt, class_name, VAR_DOMAIN, | |
2914 | collect_one_symbol, &collector); | |
1e5a1abc KS |
2915 | } |
2916 | } | |
2917 | ||
f8eba3c6 TT |
2918 | do_cleanups (cleanup); |
2919 | discard_cleanups (outer); | |
2920 | return collector.symbols; | |
93d91629 DC |
2921 | } |
2922 | ||
40e084e1 KS |
2923 | /* A qsort comparison function for symbols. The resulting order does |
2924 | not actually matter; we just need to be able to sort them so that | |
2925 | symbols with the same program space end up next to each other. */ | |
2926 | ||
2927 | static int | |
2928 | compare_symbols (const void *a, const void *b) | |
2929 | { | |
9a3c8263 SM |
2930 | struct symbol * const *sa = (struct symbol * const*) a; |
2931 | struct symbol * const *sb = (struct symbol * const*) b; | |
40e084e1 KS |
2932 | uintptr_t uia, uib; |
2933 | ||
08be3fe3 DE |
2934 | uia = (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sa)); |
2935 | uib = (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sb)); | |
40e084e1 KS |
2936 | |
2937 | if (uia < uib) | |
2938 | return -1; | |
2939 | if (uia > uib) | |
2940 | return 1; | |
2941 | ||
2942 | uia = (uintptr_t) *sa; | |
2943 | uib = (uintptr_t) *sb; | |
2944 | ||
2945 | if (uia < uib) | |
2946 | return -1; | |
2947 | if (uia > uib) | |
2948 | return 1; | |
2949 | ||
2950 | return 0; | |
2951 | } | |
2952 | ||
2953 | /* Like compare_symbols but for minimal symbols. */ | |
4224873a | 2954 | |
f8eba3c6 | 2955 | static int |
40e084e1 | 2956 | compare_msymbols (const void *a, const void *b) |
4224873a | 2957 | { |
9a3c8263 SM |
2958 | const struct bound_minimal_symbol *sa |
2959 | = (const struct bound_minimal_symbol *) a; | |
2960 | const struct bound_minimal_symbol *sb | |
2961 | = (const struct bound_minimal_symbol *) b; | |
f8eba3c6 TT |
2962 | uintptr_t uia, uib; |
2963 | ||
001822aa TT |
2964 | uia = (uintptr_t) sa->objfile->pspace; |
2965 | uib = (uintptr_t) sa->objfile->pspace; | |
f8eba3c6 TT |
2966 | |
2967 | if (uia < uib) | |
2968 | return -1; | |
2969 | if (uia > uib) | |
2970 | return 1; | |
2971 | ||
001822aa TT |
2972 | uia = (uintptr_t) sa->minsym; |
2973 | uib = (uintptr_t) sb->minsym; | |
f8eba3c6 TT |
2974 | |
2975 | if (uia < uib) | |
2976 | return -1; | |
2977 | if (uia > uib) | |
2978 | return 1; | |
2979 | ||
2980 | return 0; | |
2981 | } | |
2982 | ||
2983 | /* Look for all the matching instances of each symbol in NAMES. Only | |
2984 | instances from PSPACE are considered; other program spaces are | |
2985 | handled by our caller. If PSPACE is NULL, then all program spaces | |
2986 | are considered. Results are stored into INFO. */ | |
2987 | ||
2988 | static void | |
2989 | add_all_symbol_names_from_pspace (struct collect_info *info, | |
2990 | struct program_space *pspace, | |
2991 | VEC (const_char_ptr) *names) | |
2992 | { | |
2993 | int ix; | |
2994 | const char *iter; | |
2995 | ||
2996 | for (ix = 0; VEC_iterate (const_char_ptr, names, ix, iter); ++ix) | |
2997 | add_matching_symbols_to_info (iter, info, pspace); | |
2998 | } | |
2999 | ||
3000 | static void | |
3001 | find_superclass_methods (VEC (typep) *superclasses, | |
3002 | const char *name, | |
3003 | VEC (const_char_ptr) **result_names) | |
3004 | { | |
3005 | int old_len = VEC_length (const_char_ptr, *result_names); | |
3006 | VEC (typep) *iter_classes; | |
3007 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
3008 | ||
3009 | iter_classes = superclasses; | |
3010 | while (1) | |
3011 | { | |
3012 | VEC (typep) *new_supers = NULL; | |
3013 | int ix; | |
3014 | struct type *t; | |
3015 | ||
3016 | make_cleanup (VEC_cleanup (typep), &new_supers); | |
3017 | for (ix = 0; VEC_iterate (typep, iter_classes, ix, t); ++ix) | |
3018 | find_methods (t, name, result_names, &new_supers); | |
3019 | ||
3020 | if (VEC_length (const_char_ptr, *result_names) != old_len | |
3021 | || VEC_empty (typep, new_supers)) | |
3022 | break; | |
4224873a | 3023 | |
f8eba3c6 TT |
3024 | iter_classes = new_supers; |
3025 | } | |
4224873a | 3026 | |
f8eba3c6 TT |
3027 | do_cleanups (cleanup); |
3028 | } | |
3029 | ||
40e084e1 KS |
3030 | /* This finds the method METHOD_NAME in the class CLASS_NAME whose type is |
3031 | given by one of the symbols in SYM_CLASSES. Matches are returned | |
3032 | in SYMBOLS (for debug symbols) and MINSYMS (for minimal symbols). */ | |
f8eba3c6 | 3033 | |
40e084e1 | 3034 | static void |
ec94af83 | 3035 | find_method (struct linespec_state *self, VEC (symtab_ptr) *file_symtabs, |
40e084e1 KS |
3036 | const char *class_name, const char *method_name, |
3037 | VEC (symbolp) *sym_classes, VEC (symbolp) **symbols, | |
f60e2d5c | 3038 | VEC (bound_minimal_symbol_d) **minsyms) |
f8eba3c6 | 3039 | { |
f8eba3c6 TT |
3040 | struct symbol *sym; |
3041 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); | |
3042 | int ix; | |
3043 | int last_result_len; | |
3044 | VEC (typep) *superclass_vec; | |
3045 | VEC (const_char_ptr) *result_names; | |
3046 | struct collect_info info; | |
4224873a | 3047 | |
f8eba3c6 TT |
3048 | /* Sort symbols so that symbols with the same program space are next |
3049 | to each other. */ | |
3050 | qsort (VEC_address (symbolp, sym_classes), | |
3051 | VEC_length (symbolp, sym_classes), | |
3052 | sizeof (symbolp), | |
3053 | compare_symbols); | |
3054 | ||
3055 | info.state = self; | |
40e084e1 KS |
3056 | info.file_symtabs = file_symtabs; |
3057 | info.result.symbols = NULL; | |
3058 | info.result.minimal_symbols = NULL; | |
f8eba3c6 TT |
3059 | |
3060 | /* Iterate over all the types, looking for the names of existing | |
40e084e1 | 3061 | methods matching METHOD_NAME. If we cannot find a direct method in a |
f8eba3c6 TT |
3062 | given program space, then we consider inherited methods; this is |
3063 | not ideal (ideal would be to respect C++ hiding rules), but it | |
3064 | seems good enough and is what GDB has historically done. We only | |
3065 | need to collect the names because later we find all symbols with | |
3066 | those names. This loop is written in a somewhat funny way | |
3067 | because we collect data across the program space before deciding | |
3068 | what to do. */ | |
3069 | superclass_vec = NULL; | |
3070 | make_cleanup (VEC_cleanup (typep), &superclass_vec); | |
3071 | result_names = NULL; | |
3072 | make_cleanup (VEC_cleanup (const_char_ptr), &result_names); | |
3073 | last_result_len = 0; | |
3074 | for (ix = 0; VEC_iterate (symbolp, sym_classes, ix, sym); ++ix) | |
3075 | { | |
3076 | struct type *t; | |
3077 | struct program_space *pspace; | |
3078 | ||
3079 | /* Program spaces that are executing startup should have | |
3080 | been filtered out earlier. */ | |
08be3fe3 DE |
3081 | pspace = SYMTAB_PSPACE (symbol_symtab (sym)); |
3082 | gdb_assert (!pspace->executing_startup); | |
f8eba3c6 TT |
3083 | set_current_program_space (pspace); |
3084 | t = check_typedef (SYMBOL_TYPE (sym)); | |
40e084e1 | 3085 | find_methods (t, method_name, &result_names, &superclass_vec); |
f8eba3c6 TT |
3086 | |
3087 | /* Handle all items from a single program space at once; and be | |
3088 | sure not to miss the last batch. */ | |
3089 | if (ix == VEC_length (symbolp, sym_classes) - 1 | |
3090 | || (pspace | |
08be3fe3 | 3091 | != SYMTAB_PSPACE (symbol_symtab (VEC_index (symbolp, sym_classes, |
f8eba3c6 | 3092 | ix + 1))))) |
4224873a | 3093 | { |
f8eba3c6 TT |
3094 | /* If we did not find a direct implementation anywhere in |
3095 | this program space, consider superclasses. */ | |
3096 | if (VEC_length (const_char_ptr, result_names) == last_result_len) | |
40e084e1 KS |
3097 | find_superclass_methods (superclass_vec, method_name, |
3098 | &result_names); | |
f8eba3c6 TT |
3099 | |
3100 | /* We have a list of candidate symbol names, so now we | |
3101 | iterate over the symbol tables looking for all | |
3102 | matches in this pspace. */ | |
3103 | add_all_symbol_names_from_pspace (&info, pspace, result_names); | |
3104 | ||
3105 | VEC_truncate (typep, superclass_vec, 0); | |
3106 | last_result_len = VEC_length (const_char_ptr, result_names); | |
4224873a | 3107 | } |
4224873a | 3108 | } |
f8eba3c6 | 3109 | |
40e084e1 | 3110 | if (!VEC_empty (symbolp, info.result.symbols) |
f60e2d5c | 3111 | || !VEC_empty (bound_minimal_symbol_d, info.result.minimal_symbols)) |
4224873a | 3112 | { |
40e084e1 KS |
3113 | *symbols = info.result.symbols; |
3114 | *minsyms = info.result.minimal_symbols; | |
f8eba3c6 | 3115 | do_cleanups (cleanup); |
40e084e1 | 3116 | return; |
4224873a | 3117 | } |
f8eba3c6 | 3118 | |
40e084e1 KS |
3119 | /* Throw an NOT_FOUND_ERROR. This will be caught by the caller |
3120 | and other attempts to locate the symbol will be made. */ | |
3121 | throw_error (NOT_FOUND_ERROR, _("see caller, this text doesn't matter")); | |
f8eba3c6 TT |
3122 | } |
3123 | ||
3124 | \f | |
3125 | ||
3126 | /* This object is used when collecting all matching symtabs. */ | |
3127 | ||
3128 | struct symtab_collector | |
3129 | { | |
3130 | /* The result vector of symtabs. */ | |
ec94af83 | 3131 | VEC (symtab_ptr) *symtabs; |
f8eba3c6 TT |
3132 | |
3133 | /* This is used to ensure the symtabs are unique. */ | |
3134 | htab_t symtab_table; | |
3135 | }; | |
3136 | ||
3137 | /* Callback for iterate_over_symtabs. */ | |
3138 | ||
3139 | static int | |
3140 | add_symtabs_to_list (struct symtab *symtab, void *d) | |
3141 | { | |
9a3c8263 | 3142 | struct symtab_collector *data = (struct symtab_collector *) d; |
f8eba3c6 TT |
3143 | void **slot; |
3144 | ||
3145 | slot = htab_find_slot (data->symtab_table, symtab, INSERT); | |
3146 | if (!*slot) | |
4224873a | 3147 | { |
f8eba3c6 | 3148 | *slot = symtab; |
ec94af83 | 3149 | VEC_safe_push (symtab_ptr, data->symtabs, symtab); |
4224873a | 3150 | } |
f8eba3c6 TT |
3151 | |
3152 | return 0; | |
4224873a DC |
3153 | } |
3154 | ||
c2f4122d PA |
3155 | /* Given a file name, return a VEC of all matching symtabs. If |
3156 | SEARCH_PSPACE is not NULL, the search is restricted to just that | |
3157 | program space. */ | |
f8eba3c6 | 3158 | |
ec94af83 | 3159 | static VEC (symtab_ptr) * |
c2f4122d PA |
3160 | collect_symtabs_from_filename (const char *file, |
3161 | struct program_space *search_pspace) | |
f8eba3c6 TT |
3162 | { |
3163 | struct symtab_collector collector; | |
3164 | struct cleanup *cleanups; | |
3165 | struct program_space *pspace; | |
3166 | ||
3167 | collector.symtabs = NULL; | |
3168 | collector.symtab_table = htab_create (1, htab_hash_pointer, htab_eq_pointer, | |
3169 | NULL); | |
3170 | cleanups = make_cleanup_htab_delete (collector.symtab_table); | |
3171 | ||
3172 | /* Find that file's data. */ | |
c2f4122d PA |
3173 | if (search_pspace == NULL) |
3174 | { | |
3175 | ALL_PSPACES (pspace) | |
3176 | { | |
3177 | if (pspace->executing_startup) | |
3178 | continue; | |
f8eba3c6 | 3179 | |
c2f4122d PA |
3180 | set_current_program_space (pspace); |
3181 | iterate_over_symtabs (file, add_symtabs_to_list, &collector); | |
3182 | } | |
3183 | } | |
3184 | else | |
3185 | { | |
3186 | set_current_program_space (search_pspace); | |
3187 | iterate_over_symtabs (file, add_symtabs_to_list, &collector); | |
3188 | } | |
f3c39e76 | 3189 | |
f8eba3c6 TT |
3190 | do_cleanups (cleanups); |
3191 | return collector.symtabs; | |
3192 | } | |
3193 | ||
c2f4122d PA |
3194 | /* Return all the symtabs associated to the FILENAME. If SEARCH_PSPACE is |
3195 | not NULL, the search is restricted to just that program space. */ | |
f8eba3c6 | 3196 | |
ec94af83 | 3197 | static VEC (symtab_ptr) * |
c2f4122d PA |
3198 | symtabs_from_filename (const char *filename, |
3199 | struct program_space *search_pspace) | |
40e084e1 | 3200 | { |
ec94af83 | 3201 | VEC (symtab_ptr) *result; |
40e084e1 | 3202 | |
c2f4122d | 3203 | result = collect_symtabs_from_filename (filename, search_pspace); |
f8eba3c6 | 3204 | |
ec94af83 | 3205 | if (VEC_empty (symtab_ptr, result)) |
f8eba3c6 | 3206 | { |
40e084e1 KS |
3207 | if (!have_full_symbols () && !have_partial_symbols ()) |
3208 | throw_error (NOT_FOUND_ERROR, | |
3209 | _("No symbol table is loaded. " | |
3210 | "Use the \"file\" command.")); | |
00e52e53 | 3211 | source_file_not_found_error (filename); |
f8eba3c6 TT |
3212 | } |
3213 | ||
40e084e1 | 3214 | return result; |
84fba31b | 3215 | } |
f3c39e76 | 3216 | |
40e084e1 KS |
3217 | /* Look up a function symbol named NAME in symtabs FILE_SYMTABS. Matching |
3218 | debug symbols are returned in SYMBOLS. Matching minimal symbols are | |
3219 | returned in MINSYMS. */ | |
14e91ac5 | 3220 | |
40e084e1 KS |
3221 | static void |
3222 | find_function_symbols (struct linespec_state *state, | |
ec94af83 | 3223 | VEC (symtab_ptr) *file_symtabs, const char *name, |
40e084e1 | 3224 | VEC (symbolp) **symbols, |
f60e2d5c | 3225 | VEC (bound_minimal_symbol_d) **minsyms) |
14e91ac5 | 3226 | { |
40e084e1 KS |
3227 | struct collect_info info; |
3228 | VEC (const_char_ptr) *symbol_names = NULL; | |
3229 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr), | |
3230 | &symbol_names); | |
14e91ac5 | 3231 | |
40e084e1 KS |
3232 | info.state = state; |
3233 | info.result.symbols = NULL; | |
3234 | info.result.minimal_symbols = NULL; | |
3235 | info.file_symtabs = file_symtabs; | |
e0881a8e | 3236 | |
40e084e1 | 3237 | /* Try NAME as an Objective-C selector. */ |
d7561cbb | 3238 | find_imps (name, &symbol_names); |
40e084e1 | 3239 | if (!VEC_empty (const_char_ptr, symbol_names)) |
c2f4122d PA |
3240 | add_all_symbol_names_from_pspace (&info, state->search_pspace, |
3241 | symbol_names); | |
40e084e1 | 3242 | else |
c2f4122d | 3243 | add_matching_symbols_to_info (name, &info, state->search_pspace); |
40e084e1 KS |
3244 | |
3245 | do_cleanups (cleanup); | |
3246 | ||
3247 | if (VEC_empty (symbolp, info.result.symbols)) | |
3248 | { | |
3249 | VEC_free (symbolp, info.result.symbols); | |
3250 | *symbols = NULL; | |
14e91ac5 DC |
3251 | } |
3252 | else | |
40e084e1 KS |
3253 | *symbols = info.result.symbols; |
3254 | ||
f60e2d5c | 3255 | if (VEC_empty (bound_minimal_symbol_d, info.result.minimal_symbols)) |
14e91ac5 | 3256 | { |
f60e2d5c | 3257 | VEC_free (bound_minimal_symbol_d, info.result.minimal_symbols); |
40e084e1 KS |
3258 | *minsyms = NULL; |
3259 | } | |
3260 | else | |
3261 | *minsyms = info.result.minimal_symbols; | |
3262 | } | |
3263 | ||
3264 | /* Find all symbols named NAME in FILE_SYMTABS, returning debug symbols | |
3265 | in SYMBOLS and minimal symbols in MINSYMS. */ | |
14e91ac5 | 3266 | |
b1ae631a | 3267 | static void |
40e084e1 | 3268 | find_linespec_symbols (struct linespec_state *state, |
ec94af83 | 3269 | VEC (symtab_ptr) *file_symtabs, |
40e084e1 KS |
3270 | const char *name, |
3271 | VEC (symbolp) **symbols, | |
f60e2d5c | 3272 | VEC (bound_minimal_symbol_d) **minsyms) |
40e084e1 | 3273 | { |
40e084e1 | 3274 | struct cleanup *cleanup; |
cc81e1c6 DE |
3275 | char *canon; |
3276 | const char *lookup_name; | |
f8eba3c6 | 3277 | |
40e084e1 KS |
3278 | cleanup = demangle_for_lookup (name, state->language->la_language, |
3279 | &lookup_name); | |
3280 | if (state->language->la_language == language_ada) | |
3281 | { | |
3282 | /* In Ada, the symbol lookups are performed using the encoded | |
3283 | name rather than the demangled name. */ | |
3284 | lookup_name = ada_name_for_lookup (name); | |
3285 | make_cleanup (xfree, (void *) lookup_name); | |
3286 | } | |
31aba06f | 3287 | |
40e084e1 KS |
3288 | canon = cp_canonicalize_string_no_typedefs (lookup_name); |
3289 | if (canon != NULL) | |
3290 | { | |
3291 | lookup_name = canon; | |
e61727ab | 3292 | make_cleanup (xfree, canon); |
40e084e1 | 3293 | } |
f8eba3c6 | 3294 | |
cc81e1c6 DE |
3295 | /* It's important to not call expand_symtabs_matching unnecessarily |
3296 | as it can really slow things down (by unnecessarily expanding | |
3297 | potentially 1000s of symtabs, which when debugging some apps can | |
3298 | cost 100s of seconds). Avoid this to some extent by *first* calling | |
3299 | find_function_symbols, and only if that doesn't find anything | |
3300 | *then* call find_method. This handles two important cases: | |
3301 | 1) break (anonymous namespace)::foo | |
3302 | 2) break class::method where method is in class (and not a baseclass) */ | |
14e91ac5 | 3303 | |
cc81e1c6 DE |
3304 | find_function_symbols (state, file_symtabs, lookup_name, |
3305 | symbols, minsyms); | |
14e91ac5 | 3306 | |
cc81e1c6 DE |
3307 | /* If we were unable to locate a symbol of the same name, try dividing |
3308 | the name into class and method names and searching the class and its | |
3309 | baseclasses. */ | |
3310 | if (VEC_empty (symbolp, *symbols) | |
f60e2d5c | 3311 | && VEC_empty (bound_minimal_symbol_d, *minsyms)) |
40e084e1 | 3312 | { |
cc81e1c6 DE |
3313 | char *klass, *method; |
3314 | const char *last, *p, *scope_op; | |
3315 | VEC (symbolp) *classes; | |
14e91ac5 | 3316 | |
cc81e1c6 DE |
3317 | /* See if we can find a scope operator and break this symbol |
3318 | name into namespaces${SCOPE_OPERATOR}class_name and method_name. */ | |
3319 | scope_op = "::"; | |
3320 | p = find_toplevel_string (lookup_name, scope_op); | |
3321 | if (p == NULL) | |
3322 | { | |
3323 | /* No C++ scope operator. Try Java. */ | |
3324 | scope_op = "."; | |
3325 | p = find_toplevel_string (lookup_name, scope_op); | |
3326 | } | |
14e91ac5 | 3327 | |
cc81e1c6 DE |
3328 | last = NULL; |
3329 | while (p != NULL) | |
f8eba3c6 | 3330 | { |
cc81e1c6 DE |
3331 | last = p; |
3332 | p = find_toplevel_string (p + strlen (scope_op), scope_op); | |
f8eba3c6 | 3333 | } |
14e91ac5 | 3334 | |
cc81e1c6 DE |
3335 | /* If no scope operator was found, there is nothing more we can do; |
3336 | we already attempted to lookup the entire name as a symbol | |
3337 | and failed. */ | |
3338 | if (last == NULL) | |
40e084e1 KS |
3339 | { |
3340 | do_cleanups (cleanup); | |
3341 | return; | |
3342 | } | |
cc81e1c6 DE |
3343 | |
3344 | /* LOOKUP_NAME points to the class name. | |
3345 | LAST points to the method name. */ | |
224c3ddb | 3346 | klass = XNEWVEC (char, last - lookup_name + 1); |
cc81e1c6 DE |
3347 | make_cleanup (xfree, klass); |
3348 | strncpy (klass, lookup_name, last - lookup_name); | |
3349 | klass[last - lookup_name] = '\0'; | |
3350 | ||
3351 | /* Skip past the scope operator. */ | |
3352 | last += strlen (scope_op); | |
224c3ddb | 3353 | method = XNEWVEC (char, strlen (last) + 1); |
cc81e1c6 DE |
3354 | make_cleanup (xfree, method); |
3355 | strcpy (method, last); | |
3356 | ||
3357 | /* Find a list of classes named KLASS. */ | |
3358 | classes = lookup_prefix_sym (state, file_symtabs, klass); | |
3359 | make_cleanup (VEC_cleanup (symbolp), &classes); | |
3360 | ||
3361 | if (!VEC_empty (symbolp, classes)) | |
3362 | { | |
3363 | /* Now locate a list of suitable methods named METHOD. */ | |
492d29ea | 3364 | TRY |
cc81e1c6 DE |
3365 | { |
3366 | find_method (state, file_symtabs, klass, method, classes, | |
3367 | symbols, minsyms); | |
3368 | } | |
3369 | ||
3370 | /* If successful, we're done. If NOT_FOUND_ERROR | |
3371 | was not thrown, rethrow the exception that we did get. */ | |
492d29ea | 3372 | CATCH (except, RETURN_MASK_ERROR) |
7556d4a4 PA |
3373 | { |
3374 | if (except.error != NOT_FOUND_ERROR) | |
3375 | throw_exception (except); | |
3376 | } | |
492d29ea | 3377 | END_CATCH |
cc81e1c6 | 3378 | } |
f8eba3c6 | 3379 | } |
14e91ac5 | 3380 | |
cc81e1c6 | 3381 | do_cleanups (cleanup); |
14e91ac5 DC |
3382 | } |
3383 | ||
40e084e1 KS |
3384 | /* Return all labels named NAME in FUNCTION_SYMBOLS. Return the |
3385 | actual function symbol in which the label was found in LABEL_FUNC_RET. */ | |
0f5238ed | 3386 | |
40e084e1 KS |
3387 | static VEC (symbolp) * |
3388 | find_label_symbols (struct linespec_state *self, | |
3389 | VEC (symbolp) *function_symbols, | |
3390 | VEC (symbolp) **label_funcs_ret, const char *name) | |
0f5238ed | 3391 | { |
f8eba3c6 | 3392 | int ix; |
3977b71f | 3393 | const struct block *block; |
40e084e1 KS |
3394 | struct symbol *sym; |
3395 | struct symbol *fn_sym; | |
3396 | VEC (symbolp) *result = NULL; | |
9ef07c8c | 3397 | |
f8eba3c6 | 3398 | if (function_symbols == NULL) |
9ef07c8c | 3399 | { |
f8eba3c6 | 3400 | set_current_program_space (self->program_space); |
4eeaa230 | 3401 | block = get_current_search_block (); |
f8eba3c6 | 3402 | |
9ef07c8c TT |
3403 | for (; |
3404 | block && !BLOCK_FUNCTION (block); | |
3405 | block = BLOCK_SUPERBLOCK (block)) | |
3406 | ; | |
3407 | if (!block) | |
40e084e1 | 3408 | return NULL; |
f8eba3c6 TT |
3409 | fn_sym = BLOCK_FUNCTION (block); |
3410 | ||
d12307c1 | 3411 | sym = lookup_symbol (name, block, LABEL_DOMAIN, 0).symbol; |
f8eba3c6 | 3412 | |
40e084e1 KS |
3413 | if (sym != NULL) |
3414 | { | |
3415 | VEC_safe_push (symbolp, result, sym); | |
3416 | VEC_safe_push (symbolp, *label_funcs_ret, fn_sym); | |
3417 | } | |
3418 | } | |
3419 | else | |
3420 | { | |
3421 | for (ix = 0; | |
3422 | VEC_iterate (symbolp, function_symbols, ix, fn_sym); ++ix) | |
f8eba3c6 | 3423 | { |
08be3fe3 | 3424 | set_current_program_space (SYMTAB_PSPACE (symbol_symtab (fn_sym))); |
40e084e1 | 3425 | block = SYMBOL_BLOCK_VALUE (fn_sym); |
d12307c1 | 3426 | sym = lookup_symbol (name, block, LABEL_DOMAIN, 0).symbol; |
40e084e1 KS |
3427 | |
3428 | if (sym != NULL) | |
3429 | { | |
3430 | VEC_safe_push (symbolp, result, sym); | |
3431 | VEC_safe_push (symbolp, *label_funcs_ret, fn_sym); | |
3432 | } | |
f8eba3c6 | 3433 | } |
40e084e1 | 3434 | } |
f8eba3c6 | 3435 | |
40e084e1 KS |
3436 | return result; |
3437 | } | |
f8eba3c6 | 3438 | |
40e084e1 KS |
3439 | \f |
3440 | ||
3441 | /* A helper for create_sals_line_offset that handles the 'list_mode' case. */ | |
3442 | ||
3443 | static void | |
3444 | decode_digits_list_mode (struct linespec_state *self, | |
3445 | linespec_p ls, | |
3446 | struct symtabs_and_lines *values, | |
3447 | struct symtab_and_line val) | |
3448 | { | |
3449 | int ix; | |
3450 | struct symtab *elt; | |
3451 | ||
3452 | gdb_assert (self->list_mode); | |
3453 | ||
ec94af83 | 3454 | for (ix = 0; VEC_iterate (symtab_ptr, ls->file_symtabs, ix, elt); |
40e084e1 KS |
3455 | ++ix) |
3456 | { | |
3457 | /* The logic above should ensure this. */ | |
3458 | gdb_assert (elt != NULL); | |
3459 | ||
3460 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
3461 | ||
3462 | /* Simplistic search just for the list command. */ | |
3463 | val.symtab = find_line_symtab (elt, val.line, NULL, NULL); | |
3464 | if (val.symtab == NULL) | |
3465 | val.symtab = elt; | |
3466 | val.pspace = SYMTAB_PSPACE (elt); | |
3467 | val.pc = 0; | |
3468 | val.explicit_line = 1; | |
3469 | ||
66f1999b | 3470 | add_sal_to_sals (self, values, &val, NULL, 0); |
f8eba3c6 | 3471 | } |
40e084e1 | 3472 | } |
f8eba3c6 | 3473 | |
40e084e1 KS |
3474 | /* A helper for create_sals_line_offset that iterates over the symtabs, |
3475 | adding lines to the VEC. */ | |
3476 | ||
3477 | static void | |
3478 | decode_digits_ordinary (struct linespec_state *self, | |
3479 | linespec_p ls, | |
3480 | int line, | |
3481 | struct symtabs_and_lines *sals, | |
3482 | struct linetable_entry **best_entry) | |
3483 | { | |
3484 | int ix; | |
3485 | struct symtab *elt; | |
f8eba3c6 | 3486 | |
ec94af83 | 3487 | for (ix = 0; VEC_iterate (symtab_ptr, ls->file_symtabs, ix, elt); ++ix) |
f8eba3c6 | 3488 | { |
40e084e1 KS |
3489 | int i; |
3490 | VEC (CORE_ADDR) *pcs; | |
3491 | CORE_ADDR pc; | |
3492 | ||
3493 | /* The logic above should ensure this. */ | |
3494 | gdb_assert (elt != NULL); | |
f8eba3c6 | 3495 | |
40e084e1 | 3496 | set_current_program_space (SYMTAB_PSPACE (elt)); |
f8eba3c6 | 3497 | |
40e084e1 KS |
3498 | pcs = find_pcs_for_symtab_line (elt, line, best_entry); |
3499 | for (i = 0; VEC_iterate (CORE_ADDR, pcs, i, pc); ++i) | |
f8eba3c6 TT |
3500 | { |
3501 | struct symtab_and_line sal; | |
40e084e1 KS |
3502 | |
3503 | init_sal (&sal); | |
3504 | sal.pspace = SYMTAB_PSPACE (elt); | |
3505 | sal.symtab = elt; | |
3506 | sal.line = line; | |
3507 | sal.pc = pc; | |
3508 | add_sal_to_sals_basic (sals, &sal); | |
f8eba3c6 | 3509 | } |
40e084e1 KS |
3510 | |
3511 | VEC_free (CORE_ADDR, pcs); | |
f8eba3c6 | 3512 | } |
40e084e1 KS |
3513 | } |
3514 | ||
3515 | \f | |
3516 | ||
3517 | /* Return the line offset represented by VARIABLE. */ | |
3518 | ||
3519 | static struct line_offset | |
3520 | linespec_parse_variable (struct linespec_state *self, const char *variable) | |
3521 | { | |
3522 | int index = 0; | |
3523 | const char *p; | |
3524 | struct line_offset offset = {0, LINE_OFFSET_NONE}; | |
f8eba3c6 | 3525 | |
40e084e1 KS |
3526 | p = (variable[1] == '$') ? variable + 2 : variable + 1; |
3527 | if (*p == '$') | |
3528 | ++p; | |
3529 | while (*p >= '0' && *p <= '9') | |
3530 | ++p; | |
3531 | if (!*p) /* Reached end of token without hitting non-digit. */ | |
f8eba3c6 | 3532 | { |
40e084e1 KS |
3533 | /* We have a value history reference. */ |
3534 | struct value *val_history; | |
f8eba3c6 | 3535 | |
40e084e1 KS |
3536 | sscanf ((variable[1] == '$') ? variable + 2 : variable + 1, "%d", &index); |
3537 | val_history | |
3538 | = access_value_history ((variable[1] == '$') ? -index : index); | |
3539 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
3540 | error (_("History values used in line " | |
3541 | "specs must have integer values.")); | |
3542 | offset.offset = value_as_long (val_history); | |
3543 | } | |
3544 | else | |
3545 | { | |
3546 | /* Not all digits -- may be user variable/function or a | |
3547 | convenience variable. */ | |
3548 | LONGEST valx; | |
3549 | struct internalvar *ivar; | |
3550 | ||
3551 | /* Try it as a convenience variable. If it is not a convenience | |
3552 | variable, return and allow normal symbol lookup to occur. */ | |
3553 | ivar = lookup_only_internalvar (variable + 1); | |
3554 | if (ivar == NULL) | |
3555 | /* No internal variable with that name. Mark the offset | |
3556 | as unknown to allow the name to be looked up as a symbol. */ | |
3557 | offset.sign = LINE_OFFSET_UNKNOWN; | |
3558 | else | |
3559 | { | |
3560 | /* We found a valid variable name. If it is not an integer, | |
3561 | throw an error. */ | |
3562 | if (!get_internalvar_integer (ivar, &valx)) | |
3563 | error (_("Convenience variables used in line " | |
3564 | "specs must have integer values.")); | |
3565 | else | |
3566 | offset.offset = valx; | |
3567 | } | |
f8eba3c6 TT |
3568 | } |
3569 | ||
40e084e1 | 3570 | return offset; |
f8eba3c6 | 3571 | } |
40e084e1 | 3572 | \f |
f8eba3c6 TT |
3573 | |
3574 | /* A callback used to possibly add a symbol to the results. */ | |
3575 | ||
3576 | static int | |
3577 | collect_symbols (struct symbol *sym, void *data) | |
3578 | { | |
9a3c8263 | 3579 | struct collect_info *info = (struct collect_info *) data; |
f8eba3c6 | 3580 | |
40e084e1 KS |
3581 | /* In list mode, add all matching symbols, regardless of class. |
3582 | This allows the user to type "list a_global_variable". */ | |
3583 | if (SYMBOL_CLASS (sym) == LOC_BLOCK || info->state->list_mode) | |
3584 | VEC_safe_push (symbolp, info->result.symbols, sym); | |
8e704927 | 3585 | return 1; /* Continue iterating. */ |
f8eba3c6 TT |
3586 | } |
3587 | ||
40e084e1 | 3588 | /* We've found a minimal symbol MSYMBOL in OBJFILE to associate with our |
6e22494e JK |
3589 | linespec; return the SAL in RESULT. This function should return SALs |
3590 | matching those from find_function_start_sal, otherwise false | |
3591 | multiple-locations breakpoints could be placed. */ | |
f8eba3c6 TT |
3592 | |
3593 | static void | |
3594 | minsym_found (struct linespec_state *self, struct objfile *objfile, | |
3595 | struct minimal_symbol *msymbol, | |
3596 | struct symtabs_and_lines *result) | |
3597 | { | |
3598 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
3599 | CORE_ADDR pc; | |
3600 | struct symtab_and_line sal; | |
3601 | ||
77e371c0 | 3602 | sal = find_pc_sect_line (MSYMBOL_VALUE_ADDRESS (objfile, msymbol), |
f8eba3c6 | 3603 | (struct obj_section *) 0, 0); |
efd66ac6 | 3604 | sal.section = MSYMBOL_OBJ_SECTION (objfile, msymbol); |
f8eba3c6 TT |
3605 | |
3606 | /* The minimal symbol might point to a function descriptor; | |
3607 | resolve it to the actual code address instead. */ | |
3608 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, ¤t_target); | |
3609 | if (pc != sal.pc) | |
3610 | sal = find_pc_sect_line (pc, NULL, 0); | |
3611 | ||
3612 | if (self->funfirstline) | |
6e22494e JK |
3613 | { |
3614 | if (sal.symtab != NULL | |
3615 | && (COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (sal.symtab)) | |
3616 | || SYMTAB_LANGUAGE (sal.symtab) == language_asm)) | |
3617 | { | |
3618 | /* If gdbarch_convert_from_func_ptr_addr does not apply then | |
3619 | sal.SECTION, sal.LINE&co. will stay correct from above. | |
3620 | If gdbarch_convert_from_func_ptr_addr applies then | |
3621 | sal.SECTION is cleared from above and sal.LINE&co. will | |
3622 | stay correct from the last find_pc_sect_line above. */ | |
3623 | sal.pc = MSYMBOL_VALUE_ADDRESS (objfile, msymbol); | |
3624 | sal.pc = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, | |
3625 | ¤t_target); | |
141c5cc4 JK |
3626 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3627 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3628 | } |
3629 | else | |
3630 | skip_prologue_sal (&sal); | |
3631 | } | |
f8eba3c6 | 3632 | |
07fea4b4 | 3633 | if (maybe_add_address (self->addr_set, objfile->pspace, sal.pc)) |
efd66ac6 | 3634 | add_sal_to_sals (self, result, &sal, MSYMBOL_NATURAL_NAME (msymbol), 0); |
f8eba3c6 TT |
3635 | } |
3636 | ||
39b856a4 TT |
3637 | /* A helper struct to pass some data through |
3638 | iterate_over_minimal_symbols. */ | |
3639 | ||
3640 | struct collect_minsyms | |
3641 | { | |
3642 | /* The objfile we're examining. */ | |
3643 | struct objfile *objfile; | |
3644 | ||
87186c6a MMN |
3645 | /* Only search the given symtab, or NULL to search for all symbols. */ |
3646 | struct symtab *symtab; | |
3647 | ||
39b856a4 TT |
3648 | /* The funfirstline setting from the initial call. */ |
3649 | int funfirstline; | |
3650 | ||
095bcf5e JB |
3651 | /* The list_mode setting from the initial call. */ |
3652 | int list_mode; | |
3653 | ||
39b856a4 | 3654 | /* The resulting symbols. */ |
f60e2d5c | 3655 | VEC (bound_minimal_symbol_d) *msyms; |
39b856a4 TT |
3656 | }; |
3657 | ||
3658 | /* A helper function to classify a minimal_symbol_type according to | |
3659 | priority. */ | |
3660 | ||
3661 | static int | |
3662 | classify_mtype (enum minimal_symbol_type t) | |
3663 | { | |
3664 | switch (t) | |
f8eba3c6 | 3665 | { |
39b856a4 TT |
3666 | case mst_file_text: |
3667 | case mst_file_data: | |
3668 | case mst_file_bss: | |
3669 | /* Intermediate priority. */ | |
3670 | return 1; | |
3671 | ||
3672 | case mst_solib_trampoline: | |
3673 | /* Lowest priority. */ | |
3674 | return 2; | |
3675 | ||
3676 | default: | |
3677 | /* Highest priority. */ | |
3678 | return 0; | |
f8eba3c6 | 3679 | } |
39b856a4 TT |
3680 | } |
3681 | ||
3682 | /* Callback for qsort that sorts symbols by priority. */ | |
3683 | ||
3684 | static int | |
3685 | compare_msyms (const void *a, const void *b) | |
3686 | { | |
9a3c8263 SM |
3687 | const bound_minimal_symbol_d *moa = (const bound_minimal_symbol_d *) a; |
3688 | const bound_minimal_symbol_d *mob = (const bound_minimal_symbol_d *) b; | |
39b856a4 TT |
3689 | enum minimal_symbol_type ta = MSYMBOL_TYPE (moa->minsym); |
3690 | enum minimal_symbol_type tb = MSYMBOL_TYPE (mob->minsym); | |
3691 | ||
3692 | return classify_mtype (ta) - classify_mtype (tb); | |
3693 | } | |
3694 | ||
3695 | /* Callback for iterate_over_minimal_symbols that adds the symbol to | |
3696 | the result. */ | |
3697 | ||
3698 | static void | |
3699 | add_minsym (struct minimal_symbol *minsym, void *d) | |
3700 | { | |
9a3c8263 | 3701 | struct collect_minsyms *info = (struct collect_minsyms *) d; |
f60e2d5c | 3702 | bound_minimal_symbol_d mo; |
39b856a4 | 3703 | |
77e371c0 TT |
3704 | mo.minsym = minsym; |
3705 | mo.objfile = info->objfile; | |
3706 | ||
87186c6a MMN |
3707 | if (info->symtab != NULL) |
3708 | { | |
3709 | CORE_ADDR pc; | |
3710 | struct symtab_and_line sal; | |
3711 | struct gdbarch *gdbarch = get_objfile_arch (info->objfile); | |
3712 | ||
3713 | sal = find_pc_sect_line (MSYMBOL_VALUE_ADDRESS (info->objfile, minsym), | |
3714 | NULL, 0); | |
3715 | sal.section = MSYMBOL_OBJ_SECTION (info->objfile, minsym); | |
3716 | pc | |
3717 | = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, ¤t_target); | |
3718 | if (pc != sal.pc) | |
3719 | sal = find_pc_sect_line (pc, NULL, 0); | |
3720 | ||
3721 | if (info->symtab != sal.symtab) | |
3722 | return; | |
3723 | } | |
3724 | ||
095bcf5e JB |
3725 | /* Exclude data symbols when looking for breakpoint locations. */ |
3726 | if (!info->list_mode) | |
3727 | switch (minsym->type) | |
3728 | { | |
3729 | case mst_slot_got_plt: | |
3730 | case mst_data: | |
3731 | case mst_bss: | |
3732 | case mst_abs: | |
3733 | case mst_file_data: | |
3734 | case mst_file_bss: | |
1a2da5ee JB |
3735 | { |
3736 | /* Make sure this minsym is not a function descriptor | |
3737 | before we decide to discard it. */ | |
df6d5441 | 3738 | struct gdbarch *gdbarch = get_objfile_arch (info->objfile); |
1a2da5ee | 3739 | CORE_ADDR addr = gdbarch_convert_from_func_ptr_addr |
77e371c0 | 3740 | (gdbarch, BMSYMBOL_VALUE_ADDRESS (mo), |
1a2da5ee JB |
3741 | ¤t_target); |
3742 | ||
77e371c0 | 3743 | if (addr == BMSYMBOL_VALUE_ADDRESS (mo)) |
1a2da5ee JB |
3744 | return; |
3745 | } | |
095bcf5e JB |
3746 | } |
3747 | ||
f60e2d5c | 3748 | VEC_safe_push (bound_minimal_symbol_d, info->msyms, &mo); |
f8eba3c6 TT |
3749 | } |
3750 | ||
87186c6a | 3751 | /* Search for minimal symbols called NAME. If SEARCH_PSPACE |
f8eba3c6 | 3752 | is not NULL, the search is restricted to just that program |
87186c6a MMN |
3753 | space. |
3754 | ||
3755 | If SYMTAB is NULL, search all objfiles, otherwise | |
3756 | restrict results to the given SYMTAB. */ | |
f8eba3c6 TT |
3757 | |
3758 | static void | |
3759 | search_minsyms_for_name (struct collect_info *info, const char *name, | |
87186c6a MMN |
3760 | struct program_space *search_pspace, |
3761 | struct symtab *symtab) | |
f8eba3c6 | 3762 | { |
87186c6a MMN |
3763 | struct collect_minsyms local; |
3764 | struct cleanup *cleanup; | |
f8eba3c6 | 3765 | |
87186c6a MMN |
3766 | memset (&local, 0, sizeof (local)); |
3767 | local.funfirstline = info->state->funfirstline; | |
3768 | local.list_mode = info->state->list_mode; | |
3769 | local.symtab = symtab; | |
39b856a4 | 3770 | |
87186c6a | 3771 | cleanup = make_cleanup (VEC_cleanup (bound_minimal_symbol_d), &local.msyms); |
f8eba3c6 | 3772 | |
87186c6a MMN |
3773 | if (symtab == NULL) |
3774 | { | |
3775 | struct program_space *pspace; | |
f8eba3c6 | 3776 | |
87186c6a MMN |
3777 | ALL_PSPACES (pspace) |
3778 | { | |
3779 | struct objfile *objfile; | |
39b856a4 | 3780 | |
87186c6a MMN |
3781 | if (search_pspace != NULL && search_pspace != pspace) |
3782 | continue; | |
3783 | if (pspace->executing_startup) | |
3784 | continue; | |
39b856a4 | 3785 | |
87186c6a MMN |
3786 | set_current_program_space (pspace); |
3787 | ||
3788 | ALL_OBJFILES (objfile) | |
3789 | { | |
3790 | local.objfile = objfile; | |
3791 | iterate_over_minimal_symbols (objfile, name, add_minsym, &local); | |
3792 | } | |
3793 | } | |
3794 | } | |
3795 | else | |
f8eba3c6 | 3796 | { |
87186c6a MMN |
3797 | if (search_pspace == NULL || SYMTAB_PSPACE (symtab) == search_pspace) |
3798 | { | |
3799 | set_current_program_space (SYMTAB_PSPACE (symtab)); | |
3800 | local.objfile = SYMTAB_OBJFILE(symtab); | |
3801 | iterate_over_minimal_symbols (local.objfile, name, add_minsym, | |
3802 | &local); | |
3803 | } | |
9ef07c8c | 3804 | } |
39b856a4 | 3805 | |
f60e2d5c | 3806 | if (!VEC_empty (bound_minimal_symbol_d, local.msyms)) |
39b856a4 TT |
3807 | { |
3808 | int classification; | |
3809 | int ix; | |
f60e2d5c | 3810 | bound_minimal_symbol_d *item; |
39b856a4 | 3811 | |
f60e2d5c TT |
3812 | qsort (VEC_address (bound_minimal_symbol_d, local.msyms), |
3813 | VEC_length (bound_minimal_symbol_d, local.msyms), | |
3814 | sizeof (bound_minimal_symbol_d), | |
39b856a4 TT |
3815 | compare_msyms); |
3816 | ||
3817 | /* Now the minsyms are in classification order. So, we walk | |
3818 | over them and process just the minsyms with the same | |
3819 | classification as the very first minsym in the list. */ | |
f60e2d5c | 3820 | item = VEC_index (bound_minimal_symbol_d, local.msyms, 0); |
39b856a4 TT |
3821 | classification = classify_mtype (MSYMBOL_TYPE (item->minsym)); |
3822 | ||
3823 | for (ix = 0; | |
f60e2d5c | 3824 | VEC_iterate (bound_minimal_symbol_d, local.msyms, ix, item); |
39b856a4 TT |
3825 | ++ix) |
3826 | { | |
3827 | if (classify_mtype (MSYMBOL_TYPE (item->minsym)) != classification) | |
3828 | break; | |
3829 | ||
f60e2d5c | 3830 | VEC_safe_push (bound_minimal_symbol_d, |
40e084e1 | 3831 | info->result.minimal_symbols, item); |
39b856a4 TT |
3832 | } |
3833 | } | |
3834 | ||
3835 | do_cleanups (cleanup); | |
f8eba3c6 TT |
3836 | } |
3837 | ||
3838 | /* A helper function to add all symbols matching NAME to INFO. If | |
3839 | PSPACE is not NULL, the search is restricted to just that program | |
3840 | space. */ | |
0f5238ed | 3841 | |
f8eba3c6 TT |
3842 | static void |
3843 | add_matching_symbols_to_info (const char *name, | |
3844 | struct collect_info *info, | |
3845 | struct program_space *pspace) | |
3846 | { | |
3847 | int ix; | |
3848 | struct symtab *elt; | |
0f5238ed | 3849 | |
ec94af83 | 3850 | for (ix = 0; VEC_iterate (symtab_ptr, info->file_symtabs, ix, elt); ++ix) |
f8eba3c6 | 3851 | { |
f8eba3c6 TT |
3852 | if (elt == NULL) |
3853 | { | |
40e084e1 | 3854 | iterate_over_all_matching_symtabs (info->state, name, VAR_DOMAIN, |
f8eba3c6 | 3855 | collect_symbols, info, |
481860b3 | 3856 | pspace, 1); |
87186c6a | 3857 | search_minsyms_for_name (info, name, pspace, NULL); |
f8eba3c6 TT |
3858 | } |
3859 | else if (pspace == NULL || pspace == SYMTAB_PSPACE (elt)) | |
3860 | { | |
87186c6a MMN |
3861 | int prev_len = VEC_length (symbolp, info->result.symbols); |
3862 | ||
f8eba3c6 TT |
3863 | /* Program spaces that are executing startup should have |
3864 | been filtered out earlier. */ | |
3865 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
3866 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
4eeaa230 DE |
3867 | iterate_over_file_blocks (elt, name, VAR_DOMAIN, |
3868 | collect_symbols, info); | |
87186c6a MMN |
3869 | |
3870 | /* If no new symbols were found in this iteration and this symtab | |
3871 | is in assembler, we might actually be looking for a label for | |
3872 | which we don't have debug info. Check for a minimal symbol in | |
3873 | this case. */ | |
3874 | if (prev_len == VEC_length (symbolp, info->result.symbols) | |
3875 | && elt->language == language_asm) | |
3876 | search_minsyms_for_name (info, name, pspace, elt); | |
f8eba3c6 TT |
3877 | } |
3878 | } | |
0f5238ed TT |
3879 | } |
3880 | ||
14e91ac5 DC |
3881 | \f |
3882 | ||
413dad4d DC |
3883 | /* Now come some functions that are called from multiple places within |
3884 | decode_line_1. */ | |
3885 | ||
f8eba3c6 TT |
3886 | static int |
3887 | symbol_to_sal (struct symtab_and_line *result, | |
3888 | int funfirstline, struct symbol *sym) | |
413dad4d | 3889 | { |
413dad4d | 3890 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
50641945 | 3891 | { |
f8eba3c6 TT |
3892 | *result = find_function_start_sal (sym, funfirstline); |
3893 | return 1; | |
50641945 | 3894 | } |
413dad4d DC |
3895 | else |
3896 | { | |
62853458 | 3897 | if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0) |
413dad4d | 3898 | { |
f8eba3c6 | 3899 | init_sal (result); |
08be3fe3 | 3900 | result->symtab = symbol_symtab (sym); |
f8eba3c6 TT |
3901 | result->line = SYMBOL_LINE (sym); |
3902 | result->pc = SYMBOL_VALUE_ADDRESS (sym); | |
08be3fe3 | 3903 | result->pspace = SYMTAB_PSPACE (result->symtab); |
f8eba3c6 TT |
3904 | result->explicit_pc = 1; |
3905 | return 1; | |
413dad4d | 3906 | } |
62853458 | 3907 | else if (funfirstline) |
dcf9f4ab | 3908 | { |
f8eba3c6 | 3909 | /* Nothing. */ |
dcf9f4ab | 3910 | } |
62853458 TT |
3911 | else if (SYMBOL_LINE (sym) != 0) |
3912 | { | |
3913 | /* We know its line number. */ | |
f8eba3c6 | 3914 | init_sal (result); |
08be3fe3 | 3915 | result->symtab = symbol_symtab (sym); |
f8eba3c6 | 3916 | result->line = SYMBOL_LINE (sym); |
08be3fe3 | 3917 | result->pspace = SYMTAB_PSPACE (result->symtab); |
f8eba3c6 | 3918 | return 1; |
62853458 | 3919 | } |
413dad4d | 3920 | } |
f8eba3c6 TT |
3921 | |
3922 | return 0; | |
413dad4d | 3923 | } |
50641945 | 3924 | |
f8eba3c6 | 3925 | /* See the comment in linespec.h. */ |
50641945 | 3926 | |
f8eba3c6 TT |
3927 | void |
3928 | init_linespec_result (struct linespec_result *lr) | |
413dad4d | 3929 | { |
f8eba3c6 TT |
3930 | memset (lr, 0, sizeof (*lr)); |
3931 | } | |
413dad4d | 3932 | |
f8eba3c6 | 3933 | /* See the comment in linespec.h. */ |
bccdca4a | 3934 | |
f8eba3c6 TT |
3935 | void |
3936 | destroy_linespec_result (struct linespec_result *ls) | |
3937 | { | |
3938 | int i; | |
3939 | struct linespec_sals *lsal; | |
bccdca4a | 3940 | |
f00aae0f | 3941 | delete_event_location (ls->location); |
f8eba3c6 TT |
3942 | for (i = 0; VEC_iterate (linespec_sals, ls->sals, i, lsal); ++i) |
3943 | { | |
3944 | xfree (lsal->canonical); | |
3945 | xfree (lsal->sals.sals); | |
3946 | } | |
3947 | VEC_free (linespec_sals, ls->sals); | |
3948 | } | |
e48883f7 | 3949 | |
f8eba3c6 TT |
3950 | /* Cleanup function for a linespec_result. */ |
3951 | ||
3952 | static void | |
3953 | cleanup_linespec_result (void *a) | |
3954 | { | |
9a3c8263 | 3955 | destroy_linespec_result ((struct linespec_result *) a); |
50641945 | 3956 | } |
7efd8fc2 | 3957 | |
f8eba3c6 TT |
3958 | /* See the comment in linespec.h. */ |
3959 | ||
3960 | struct cleanup * | |
3961 | make_cleanup_destroy_linespec_result (struct linespec_result *ls) | |
7efd8fc2 | 3962 | { |
f8eba3c6 | 3963 | return make_cleanup (cleanup_linespec_result, ls); |
7efd8fc2 | 3964 | } |
87f0e720 KS |
3965 | |
3966 | /* Return the quote characters permitted by the linespec parser. */ | |
3967 | ||
3968 | const char * | |
3969 | get_gdb_linespec_parser_quote_characters (void) | |
3970 | { | |
3971 | return linespec_quote_characters; | |
3972 | } |