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50641945 | 1 | /* Parser for linespec for the GNU debugger, GDB. |
05ff989b | 2 | |
3666a048 | 3 | Copyright (C) 1986-2021 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" |
268a13a5 TT |
47 | #include "gdbsupport/function-view.h" |
48 | #include "gdbsupport/def-vector.h" | |
41c1efc6 | 49 | #include <algorithm> |
f8eba3c6 | 50 | |
c45ec17c PA |
51 | /* An enumeration of the various things a user might attempt to |
52 | complete for a linespec location. */ | |
53 | ||
54 | enum class linespec_complete_what | |
55 | { | |
56 | /* Nothing, no possible completion. */ | |
57 | NOTHING, | |
58 | ||
59 | /* A function/method name. Due to ambiguity between | |
60 | ||
61 | (gdb) b source[TAB] | |
62 | source_file.c | |
63 | source_function | |
64 | ||
65 | this can also indicate a source filename, iff we haven't seen a | |
66 | separate source filename component, as in "b source.c:function". */ | |
67 | FUNCTION, | |
68 | ||
69 | /* A label symbol. E.g., break file.c:function:LABEL. */ | |
70 | LABEL, | |
71 | ||
72 | /* An expression. E.g., "break foo if EXPR", or "break *EXPR". */ | |
73 | EXPRESSION, | |
74 | ||
733d554a | 75 | /* A linespec keyword ("if"/"thread"/"task"/"-force-condition"). |
c45ec17c PA |
76 | E.g., "break func threa<tab>". */ |
77 | KEYWORD, | |
78 | }; | |
79 | ||
f8eba3c6 TT |
80 | /* An address entry is used to ensure that any given location is only |
81 | added to the result a single time. It holds an address and the | |
82 | program space from which the address came. */ | |
83 | ||
84 | struct address_entry | |
85 | { | |
86 | struct program_space *pspace; | |
87 | CORE_ADDR addr; | |
88 | }; | |
89 | ||
40e084e1 KS |
90 | /* A linespec. Elements of this structure are filled in by a parser |
91 | (either parse_linespec or some other function). The structure is | |
92 | then converted into SALs by convert_linespec_to_sals. */ | |
93 | ||
94 | struct linespec | |
95 | { | |
00e52e53 | 96 | /* An explicit location describing the SaLs. */ |
67994074 | 97 | struct explicit_location explicit_loc; |
40e084e1 KS |
98 | |
99 | /* The list of symtabs to search to which to limit the search. May not | |
00e52e53 KS |
100 | be NULL. If explicit.SOURCE_FILENAME is NULL (no user-specified |
101 | filename), FILE_SYMTABS should contain one single NULL member. This | |
102 | will cause the code to use the default symtab. */ | |
2a908241 | 103 | std::vector<symtab *> *file_symtabs; |
40e084e1 | 104 | |
40e084e1 | 105 | /* A list of matching function symbols and minimal symbols. Both lists |
7243d011 | 106 | may be NULL (or empty) if no matching symbols were found. */ |
7e41c8db | 107 | std::vector<block_symbol> *function_symbols; |
c2a031c5 | 108 | std::vector<bound_minimal_symbol> *minimal_symbols; |
40e084e1 | 109 | |
40e084e1 KS |
110 | /* A structure of matching label symbols and the corresponding |
111 | function symbol in which the label was found. Both may be NULL | |
112 | or both must be non-NULL. */ | |
113 | struct | |
114 | { | |
7e41c8db KS |
115 | std::vector<block_symbol> *label_symbols; |
116 | std::vector<block_symbol> *function_symbols; | |
40e084e1 | 117 | } labels; |
40e084e1 KS |
118 | }; |
119 | typedef struct linespec *linespec_p; | |
120 | ||
33f448b1 JK |
121 | /* A canonical linespec represented as a symtab-related string. |
122 | ||
123 | Each entry represents the "SYMTAB:SUFFIX" linespec string. | |
124 | SYMTAB can be converted for example by symtab_to_fullname or | |
125 | symtab_to_filename_for_display as needed. */ | |
126 | ||
127 | struct linespec_canonical_name | |
128 | { | |
129 | /* Remaining text part of the linespec string. */ | |
130 | char *suffix; | |
131 | ||
132 | /* If NULL then SUFFIX is the whole linespec string. */ | |
133 | struct symtab *symtab; | |
134 | }; | |
135 | ||
f8eba3c6 TT |
136 | /* An instance of this is used to keep all state while linespec |
137 | operates. This instance is passed around as a 'this' pointer to | |
138 | the various implementation methods. */ | |
139 | ||
140 | struct linespec_state | |
141 | { | |
40e084e1 KS |
142 | /* The language in use during linespec processing. */ |
143 | const struct language_defn *language; | |
144 | ||
f8eba3c6 TT |
145 | /* The program space as seen when the module was entered. */ |
146 | struct program_space *program_space; | |
147 | ||
c2f4122d PA |
148 | /* If not NULL, the search is restricted to just this program |
149 | space. */ | |
150 | struct program_space *search_pspace; | |
151 | ||
f8eba3c6 TT |
152 | /* The default symtab to use, if no other symtab is specified. */ |
153 | struct symtab *default_symtab; | |
154 | ||
155 | /* The default line to use. */ | |
156 | int default_line; | |
157 | ||
f8eba3c6 TT |
158 | /* The 'funfirstline' value that was passed in to decode_line_1 or |
159 | decode_line_full. */ | |
160 | int funfirstline; | |
161 | ||
162 | /* Nonzero if we are running in 'list' mode; see decode_line_list. */ | |
163 | int list_mode; | |
164 | ||
165 | /* The 'canonical' value passed to decode_line_full, or NULL. */ | |
166 | struct linespec_result *canonical; | |
167 | ||
6c5b2ebe | 168 | /* Canonical strings that mirror the std::vector<symtab_and_line> result. */ |
33f448b1 | 169 | struct linespec_canonical_name *canonical_names; |
f8eba3c6 TT |
170 | |
171 | /* This is a set of address_entry objects which is used to prevent | |
172 | duplicate symbols from being entered into the result. */ | |
173 | htab_t addr_set; | |
00e52e53 KS |
174 | |
175 | /* Are we building a linespec? */ | |
176 | int is_linespec; | |
f8eba3c6 TT |
177 | }; |
178 | ||
179 | /* This is a helper object that is used when collecting symbols into a | |
180 | result. */ | |
181 | ||
182 | struct collect_info | |
183 | { | |
184 | /* The linespec object in use. */ | |
185 | struct linespec_state *state; | |
186 | ||
40e084e1 | 187 | /* A list of symtabs to which to restrict matches. */ |
2a908241 | 188 | std::vector<symtab *> *file_symtabs; |
40e084e1 | 189 | |
f8eba3c6 | 190 | /* The result being accumulated. */ |
40e084e1 KS |
191 | struct |
192 | { | |
7e41c8db | 193 | std::vector<block_symbol> *symbols; |
c2a031c5 | 194 | std::vector<bound_minimal_symbol> *minimal_symbols; |
40e084e1 | 195 | } result; |
14bc53a8 PA |
196 | |
197 | /* Possibly add a symbol to the results. */ | |
fcaad03c | 198 | virtual bool add_symbol (block_symbol *bsym); |
f8eba3c6 | 199 | }; |
50641945 | 200 | |
14bc53a8 | 201 | bool |
7e41c8db | 202 | collect_info::add_symbol (block_symbol *bsym) |
14bc53a8 PA |
203 | { |
204 | /* In list mode, add all matching symbols, regardless of class. | |
205 | This allows the user to type "list a_global_variable". */ | |
7e41c8db KS |
206 | if (SYMBOL_CLASS (bsym->symbol) == LOC_BLOCK || this->state->list_mode) |
207 | this->result.symbols->push_back (*bsym); | |
14bc53a8 PA |
208 | |
209 | /* Continue iterating. */ | |
210 | return true; | |
211 | } | |
212 | ||
fcaad03c KS |
213 | /* Custom collect_info for symbol_searcher. */ |
214 | ||
215 | struct symbol_searcher_collect_info | |
216 | : collect_info | |
217 | { | |
218 | bool add_symbol (block_symbol *bsym) override | |
219 | { | |
220 | /* Add everything. */ | |
221 | this->result.symbols->push_back (*bsym); | |
222 | ||
223 | /* Continue iterating. */ | |
224 | return true; | |
225 | } | |
226 | }; | |
227 | ||
40e084e1 | 228 | /* Token types */ |
50641945 | 229 | |
40e084e1 KS |
230 | enum ls_token_type |
231 | { | |
232 | /* A keyword */ | |
233 | LSTOKEN_KEYWORD = 0, | |
44fe14ab | 234 | |
40e084e1 KS |
235 | /* A colon "separator" */ |
236 | LSTOKEN_COLON, | |
44fe14ab | 237 | |
40e084e1 KS |
238 | /* A string */ |
239 | LSTOKEN_STRING, | |
0960f083 | 240 | |
40e084e1 KS |
241 | /* A number */ |
242 | LSTOKEN_NUMBER, | |
243 | ||
244 | /* A comma */ | |
245 | LSTOKEN_COMMA, | |
246 | ||
247 | /* EOI (end of input) */ | |
248 | LSTOKEN_EOI, | |
249 | ||
250 | /* Consumed token */ | |
251 | LSTOKEN_CONSUMED | |
252 | }; | |
253 | typedef enum ls_token_type linespec_token_type; | |
254 | ||
c6756f62 PA |
255 | /* List of keywords. This is NULL-terminated so that it can be used |
256 | as enum completer. */ | |
733d554a | 257 | const char * const linespec_keywords[] = { "if", "thread", "task", "-force-condition", NULL }; |
0578b14e | 258 | #define IF_KEYWORD_INDEX 0 |
733d554a | 259 | #define FORCE_KEYWORD_INDEX 3 |
40e084e1 KS |
260 | |
261 | /* A token of the linespec lexer */ | |
262 | ||
f99b5177 | 263 | struct linespec_token |
40e084e1 KS |
264 | { |
265 | /* The type of the token */ | |
266 | linespec_token_type type; | |
267 | ||
268 | /* Data for the token */ | |
269 | union | |
270 | { | |
271 | /* A string, given as a stoken */ | |
272 | struct stoken string; | |
273 | ||
274 | /* A keyword */ | |
275 | const char *keyword; | |
276 | } data; | |
277 | }; | |
40e084e1 KS |
278 | |
279 | #define LS_TOKEN_STOKEN(TOK) (TOK).data.string | |
280 | #define LS_TOKEN_KEYWORD(TOK) (TOK).data.keyword | |
281 | ||
282 | /* An instance of the linespec parser. */ | |
283 | ||
3a6ae42d | 284 | struct linespec_parser |
40e084e1 | 285 | { |
3a6ae42d TT |
286 | linespec_parser (int flags, const struct language_defn *language, |
287 | struct program_space *search_pspace, | |
288 | struct symtab *default_symtab, | |
289 | int default_line, | |
290 | struct linespec_result *canonical); | |
291 | ||
292 | ~linespec_parser (); | |
293 | ||
294 | DISABLE_COPY_AND_ASSIGN (linespec_parser); | |
295 | ||
40e084e1 KS |
296 | /* Lexer internal data */ |
297 | struct | |
298 | { | |
299 | /* Save head of input stream. */ | |
d7561cbb | 300 | const char *saved_arg; |
d2630e69 | 301 | |
40e084e1 | 302 | /* Head of the input stream. */ |
f00aae0f KS |
303 | const char *stream; |
304 | #define PARSER_STREAM(P) ((P)->lexer.stream) | |
614b3b14 | 305 | |
40e084e1 KS |
306 | /* The current token. */ |
307 | linespec_token current; | |
3a6ae42d | 308 | } lexer {}; |
93d91629 | 309 | |
40e084e1 | 310 | /* Is the entire linespec quote-enclosed? */ |
3a6ae42d | 311 | int is_quote_enclosed = 0; |
40e084e1 KS |
312 | |
313 | /* The state of the parse. */ | |
3a6ae42d | 314 | struct linespec_state state {}; |
40e084e1 | 315 | #define PARSER_STATE(PPTR) (&(PPTR)->state) |
4224873a | 316 | |
40e084e1 | 317 | /* The result of the parse. */ |
3a6ae42d | 318 | struct linespec result {}; |
40e084e1 | 319 | #define PARSER_RESULT(PPTR) (&(PPTR)->result) |
c45ec17c PA |
320 | |
321 | /* What the parser believes the current word point should complete | |
322 | to. */ | |
3a6ae42d | 323 | linespec_complete_what complete_what = linespec_complete_what::NOTHING; |
c45ec17c PA |
324 | |
325 | /* The completion word point. The parser advances this as it skips | |
326 | tokens. At some point the input string will end or parsing will | |
327 | fail, and then we attempt completion at the captured completion | |
328 | word point, interpreting the string at completion_word as | |
329 | COMPLETE_WHAT. */ | |
3a6ae42d | 330 | const char *completion_word = nullptr; |
c45ec17c PA |
331 | |
332 | /* If the current token was a quoted string, then this is the | |
333 | quoting character (either " or '). */ | |
3a6ae42d | 334 | int completion_quote_char = 0; |
c45ec17c PA |
335 | |
336 | /* If the current token was a quoted string, then this points at the | |
337 | end of the quoted string. */ | |
3a6ae42d | 338 | const char *completion_quote_end = nullptr; |
c45ec17c PA |
339 | |
340 | /* If parsing for completion, then this points at the completion | |
341 | tracker. Otherwise, this is NULL. */ | |
3a6ae42d | 342 | struct completion_tracker *completion_tracker = nullptr; |
40e084e1 | 343 | }; |
50641945 | 344 | |
00e52e53 KS |
345 | /* A convenience macro for accessing the explicit location result of |
346 | the parser. */ | |
67994074 | 347 | #define PARSER_EXPLICIT(PPTR) (&PARSER_RESULT ((PPTR))->explicit_loc) |
00e52e53 | 348 | |
40e084e1 | 349 | /* Prototypes for local functions. */ |
50641945 | 350 | |
14bc53a8 | 351 | static void iterate_over_file_blocks |
b5ec771e PA |
352 | (struct symtab *symtab, const lookup_name_info &name, |
353 | domain_enum domain, | |
14bc53a8 | 354 | gdb::function_view<symbol_found_callback_ftype> callback); |
4eeaa230 | 355 | |
40e084e1 KS |
356 | static void initialize_defaults (struct symtab **default_symtab, |
357 | int *default_line); | |
50641945 | 358 | |
a06efdd6 | 359 | CORE_ADDR linespec_expression_to_pc (const char **exp_ptr); |
aee8d8ba | 360 | |
6c5b2ebe PA |
361 | static std::vector<symtab_and_line> decode_objc (struct linespec_state *self, |
362 | linespec_p ls, | |
363 | const char *arg); | |
aee8d8ba | 364 | |
4717cec4 | 365 | static std::vector<symtab *> symtabs_from_filename |
2a908241 | 366 | (const char *, struct program_space *pspace); |
50641945 | 367 | |
7e41c8db KS |
368 | static std::vector<block_symbol> *find_label_symbols |
369 | (struct linespec_state *self, std::vector<block_symbol> *function_symbols, | |
370 | std::vector<block_symbol> *label_funcs_ret, const char *name, | |
7243d011 | 371 | bool completion_mode = false); |
50641945 | 372 | |
b1ae631a | 373 | static void find_linespec_symbols (struct linespec_state *self, |
2a908241 | 374 | std::vector<symtab *> *file_symtabs, |
b1ae631a | 375 | const char *name, |
a20714ff | 376 | symbol_name_match_type name_match_type, |
7e41c8db | 377 | std::vector<block_symbol> *symbols, |
c2a031c5 | 378 | std::vector<bound_minimal_symbol> *minsyms); |
f8eba3c6 | 379 | |
40e084e1 KS |
380 | static struct line_offset |
381 | linespec_parse_variable (struct linespec_state *self, | |
382 | const char *variable); | |
889f28e2 | 383 | |
f8eba3c6 TT |
384 | static int symbol_to_sal (struct symtab_and_line *result, |
385 | int funfirstline, struct symbol *sym); | |
50641945 | 386 | |
f8eba3c6 | 387 | static void add_matching_symbols_to_info (const char *name, |
b5ec771e | 388 | symbol_name_match_type name_match_type, |
56d87ef7 | 389 | enum search_domain search_domain, |
f8eba3c6 TT |
390 | struct collect_info *info, |
391 | struct program_space *pspace); | |
f3c39e76 | 392 | |
9b2f8581 TT |
393 | static void add_all_symbol_names_from_pspace |
394 | (struct collect_info *info, struct program_space *pspace, | |
395 | const std::vector<const char *> &names, enum search_domain search_domain); | |
9ef07c8c | 396 | |
4717cec4 | 397 | static std::vector<symtab *> |
c2f4122d PA |
398 | collect_symtabs_from_filename (const char *file, |
399 | struct program_space *pspace); | |
84fba31b | 400 | |
6c5b2ebe PA |
401 | static std::vector<symtab_and_line> decode_digits_ordinary |
402 | (struct linespec_state *self, | |
403 | linespec_p ls, | |
404 | int line, | |
405 | linetable_entry **best_entry); | |
14e91ac5 | 406 | |
6c5b2ebe PA |
407 | static std::vector<symtab_and_line> decode_digits_list_mode |
408 | (struct linespec_state *self, | |
409 | linespec_p ls, | |
410 | struct symtab_and_line val); | |
0f5238ed | 411 | |
40e084e1 KS |
412 | static void minsym_found (struct linespec_state *self, struct objfile *objfile, |
413 | struct minimal_symbol *msymbol, | |
6c5b2ebe | 414 | std::vector<symtab_and_line> *result); |
bca02a8a | 415 | |
7e41c8db | 416 | static bool compare_symbols (const block_symbol &a, const block_symbol &b); |
413dad4d | 417 | |
c2a031c5 KS |
418 | static bool compare_msymbols (const bound_minimal_symbol &a, |
419 | const bound_minimal_symbol &b); | |
413dad4d | 420 | |
40e084e1 KS |
421 | /* Permitted quote characters for the parser. This is different from the |
422 | completer's quote characters to allow backward compatibility with the | |
423 | previous parser. */ | |
db92ac45 | 424 | static const char linespec_quote_characters[] = "\"\'"; |
f8eba3c6 | 425 | |
40e084e1 KS |
426 | /* Lexer functions. */ |
427 | ||
428 | /* Lex a number from the input in PARSER. This only supports | |
dd3818c8 KS |
429 | decimal numbers. |
430 | ||
d7cbec71 | 431 | Return true if input is decimal numbers. Return false if not. */ |
40e084e1 | 432 | |
d7cbec71 HZ |
433 | static int |
434 | linespec_lexer_lex_number (linespec_parser *parser, linespec_token *tokenp) | |
40e084e1 | 435 | { |
d7cbec71 HZ |
436 | tokenp->type = LSTOKEN_NUMBER; |
437 | LS_TOKEN_STOKEN (*tokenp).length = 0; | |
438 | LS_TOKEN_STOKEN (*tokenp).ptr = PARSER_STREAM (parser); | |
40e084e1 KS |
439 | |
440 | /* Keep any sign at the start of the stream. */ | |
441 | if (*PARSER_STREAM (parser) == '+' || *PARSER_STREAM (parser) == '-') | |
442 | { | |
d7cbec71 | 443 | ++LS_TOKEN_STOKEN (*tokenp).length; |
40e084e1 KS |
444 | ++(PARSER_STREAM (parser)); |
445 | } | |
446 | ||
447 | while (isdigit (*PARSER_STREAM (parser))) | |
448 | { | |
d7cbec71 | 449 | ++LS_TOKEN_STOKEN (*tokenp).length; |
40e084e1 | 450 | ++(PARSER_STREAM (parser)); |
f8eba3c6 | 451 | } |
40e084e1 | 452 | |
dd3818c8 | 453 | /* If the next character in the input buffer is not a space, comma, |
eff9c3e6 | 454 | quote, or colon, this input does not represent a number. */ |
dd3818c8 KS |
455 | if (*PARSER_STREAM (parser) != '\0' |
456 | && !isspace (*PARSER_STREAM (parser)) && *PARSER_STREAM (parser) != ',' | |
eff9c3e6 KS |
457 | && *PARSER_STREAM (parser) != ':' |
458 | && !strchr (linespec_quote_characters, *PARSER_STREAM (parser))) | |
d7cbec71 HZ |
459 | { |
460 | PARSER_STREAM (parser) = LS_TOKEN_STOKEN (*tokenp).ptr; | |
461 | return 0; | |
462 | } | |
463 | ||
464 | return 1; | |
f8eba3c6 TT |
465 | } |
466 | ||
32b40af9 | 467 | /* See linespec.h. */ |
f8eba3c6 | 468 | |
0578b14e | 469 | const char * |
40e084e1 | 470 | linespec_lexer_lex_keyword (const char *p) |
f8eba3c6 | 471 | { |
40e084e1 | 472 | int i; |
f8eba3c6 | 473 | |
40e084e1 KS |
474 | if (p != NULL) |
475 | { | |
c6756f62 | 476 | for (i = 0; linespec_keywords[i] != NULL; ++i) |
40e084e1 KS |
477 | { |
478 | int len = strlen (linespec_keywords[i]); | |
479 | ||
5759831a TBA |
480 | /* If P begins with |
481 | ||
482 | - "thread" or "task" and the next character is | |
483 | whitespace, we may have found a keyword. It is only a | |
484 | keyword if it is not followed by another keyword. | |
485 | ||
486 | - "-force-condition", the next character may be EOF | |
487 | since this keyword does not take any arguments. Otherwise, | |
488 | it should be followed by a keyword. | |
489 | ||
490 | - "if", ALWAYS stop the lexer, since it is not possible to | |
491 | predict what is going to appear in the condition, which can | |
492 | only be parsed after SaLs have been found. */ | |
493 | if (strncmp (p, linespec_keywords[i], len) == 0) | |
0578b14e KS |
494 | { |
495 | int j; | |
496 | ||
5759831a TBA |
497 | if (i == FORCE_KEYWORD_INDEX && p[len] == '\0') |
498 | return linespec_keywords[i]; | |
499 | ||
500 | if (!isspace (p[len])) | |
501 | continue; | |
502 | ||
733d554a TBA |
503 | if (i == FORCE_KEYWORD_INDEX) |
504 | { | |
505 | p += len; | |
506 | p = skip_spaces (p); | |
5759831a TBA |
507 | for (j = 0; linespec_keywords[j] != NULL; ++j) |
508 | { | |
509 | int nextlen = strlen (linespec_keywords[j]); | |
733d554a | 510 | |
5759831a TBA |
511 | if (strncmp (p, linespec_keywords[j], nextlen) == 0 |
512 | && isspace (p[nextlen])) | |
513 | return linespec_keywords[i]; | |
514 | } | |
515 | } | |
733d554a | 516 | else if (i != IF_KEYWORD_INDEX) |
0578b14e | 517 | { |
5759831a | 518 | /* We matched a "thread" or "task". */ |
0578b14e | 519 | p += len; |
f1735a53 | 520 | p = skip_spaces (p); |
c6756f62 | 521 | for (j = 0; linespec_keywords[j] != NULL; ++j) |
0578b14e KS |
522 | { |
523 | int nextlen = strlen (linespec_keywords[j]); | |
524 | ||
525 | if (strncmp (p, linespec_keywords[j], nextlen) == 0 | |
526 | && isspace (p[nextlen])) | |
527 | return NULL; | |
528 | } | |
529 | } | |
530 | ||
531 | return linespec_keywords[i]; | |
532 | } | |
40e084e1 KS |
533 | } |
534 | } | |
535 | ||
536 | return NULL; | |
f8eba3c6 TT |
537 | } |
538 | ||
87f0e720 | 539 | /* See description in linespec.h. */ |
f8eba3c6 | 540 | |
87f0e720 | 541 | int |
40e084e1 | 542 | is_ada_operator (const char *string) |
f8eba3c6 | 543 | { |
40e084e1 | 544 | const struct ada_opname_map *mapping; |
f8eba3c6 | 545 | |
40e084e1 KS |
546 | for (mapping = ada_opname_table; |
547 | mapping->encoded != NULL | |
61012eef | 548 | && !startswith (string, mapping->decoded); ++mapping) |
40e084e1 KS |
549 | ; |
550 | ||
551 | return mapping->decoded == NULL ? 0 : strlen (mapping->decoded); | |
f8eba3c6 TT |
552 | } |
553 | ||
40e084e1 KS |
554 | /* Find QUOTE_CHAR in STRING, accounting for the ':' terminal. Return |
555 | the location of QUOTE_CHAR, or NULL if not found. */ | |
f8eba3c6 | 556 | |
40e084e1 KS |
557 | static const char * |
558 | skip_quote_char (const char *string, char quote_char) | |
f8eba3c6 | 559 | { |
40e084e1 | 560 | const char *p, *last; |
f8eba3c6 | 561 | |
40e084e1 KS |
562 | p = last = find_toplevel_char (string, quote_char); |
563 | while (p && *p != '\0' && *p != ':') | |
564 | { | |
565 | p = find_toplevel_char (p, quote_char); | |
566 | if (p != NULL) | |
567 | last = p++; | |
568 | } | |
f8eba3c6 | 569 | |
40e084e1 | 570 | return last; |
f8eba3c6 | 571 | } |
50641945 | 572 | |
40e084e1 KS |
573 | /* Make a writable copy of the string given in TOKEN, trimming |
574 | any trailing whitespace. */ | |
50641945 | 575 | |
a5b5adf5 | 576 | static gdb::unique_xmalloc_ptr<char> |
40e084e1 | 577 | copy_token_string (linespec_token token) |
50641945 | 578 | { |
a5b5adf5 | 579 | const char *str, *s; |
e0881a8e | 580 | |
40e084e1 | 581 | if (token.type == LSTOKEN_KEYWORD) |
b02f78f9 | 582 | return make_unique_xstrdup (LS_TOKEN_KEYWORD (token)); |
255e7dbf | 583 | |
a5b5adf5 | 584 | str = LS_TOKEN_STOKEN (token).ptr; |
40e084e1 | 585 | s = remove_trailing_whitespace (str, str + LS_TOKEN_STOKEN (token).length); |
e0881a8e | 586 | |
a5b5adf5 | 587 | return gdb::unique_xmalloc_ptr<char> (savestring (str, s - str)); |
40e084e1 | 588 | } |
255e7dbf | 589 | |
40e084e1 | 590 | /* Does P represent the end of a quote-enclosed linespec? */ |
f3a5f1de | 591 | |
40e084e1 KS |
592 | static int |
593 | is_closing_quote_enclosed (const char *p) | |
594 | { | |
595 | if (strchr (linespec_quote_characters, *p)) | |
596 | ++p; | |
597 | p = skip_spaces ((char *) p); | |
598 | return (*p == '\0' || linespec_lexer_lex_keyword (p)); | |
50641945 FN |
599 | } |
600 | ||
40e084e1 KS |
601 | /* Find the end of the parameter list that starts with *INPUT. |
602 | This helper function assists with lexing string segments | |
603 | which might contain valid (non-terminating) commas. */ | |
481860b3 | 604 | |
d7561cbb KS |
605 | static const char * |
606 | find_parameter_list_end (const char *input) | |
481860b3 | 607 | { |
40e084e1 KS |
608 | char end_char, start_char; |
609 | int depth; | |
d7561cbb | 610 | const char *p; |
481860b3 | 611 | |
40e084e1 KS |
612 | start_char = *input; |
613 | if (start_char == '(') | |
614 | end_char = ')'; | |
615 | else if (start_char == '<') | |
616 | end_char = '>'; | |
617 | else | |
618 | return NULL; | |
481860b3 | 619 | |
40e084e1 KS |
620 | p = input; |
621 | depth = 0; | |
622 | while (*p) | |
481860b3 | 623 | { |
40e084e1 KS |
624 | if (*p == start_char) |
625 | ++depth; | |
626 | else if (*p == end_char) | |
627 | { | |
628 | if (--depth == 0) | |
629 | { | |
630 | ++p; | |
631 | break; | |
632 | } | |
633 | } | |
634 | ++p; | |
481860b3 | 635 | } |
40e084e1 KS |
636 | |
637 | return p; | |
481860b3 GB |
638 | } |
639 | ||
c45ec17c PA |
640 | /* If the [STRING, STRING_LEN) string ends with what looks like a |
641 | keyword, return the keyword start offset in STRING. Return -1 | |
642 | otherwise. */ | |
643 | ||
644 | static size_t | |
645 | string_find_incomplete_keyword_at_end (const char * const *keywords, | |
646 | const char *string, size_t string_len) | |
647 | { | |
648 | const char *end = string + string_len; | |
649 | const char *p = end; | |
650 | ||
651 | while (p > string && *p != ' ') | |
652 | --p; | |
653 | if (p > string) | |
654 | { | |
655 | p++; | |
656 | size_t len = end - p; | |
657 | for (size_t i = 0; keywords[i] != NULL; ++i) | |
658 | if (strncmp (keywords[i], p, len) == 0) | |
659 | return p - string; | |
660 | } | |
661 | ||
662 | return -1; | |
663 | } | |
74ccd7f5 | 664 | |
40e084e1 KS |
665 | /* Lex a string from the input in PARSER. */ |
666 | ||
667 | static linespec_token | |
668 | linespec_lexer_lex_string (linespec_parser *parser) | |
74ccd7f5 | 669 | { |
40e084e1 | 670 | linespec_token token; |
d7561cbb | 671 | const char *start = PARSER_STREAM (parser); |
74ccd7f5 | 672 | |
40e084e1 | 673 | token.type = LSTOKEN_STRING; |
74ccd7f5 | 674 | |
40e084e1 KS |
675 | /* If the input stream starts with a quote character, skip to the next |
676 | quote character, regardless of the content. */ | |
677 | if (strchr (linespec_quote_characters, *PARSER_STREAM (parser))) | |
678 | { | |
679 | const char *end; | |
680 | char quote_char = *PARSER_STREAM (parser); | |
50641945 | 681 | |
40e084e1 KS |
682 | /* Special case: Ada operators. */ |
683 | if (PARSER_STATE (parser)->language->la_language == language_ada | |
684 | && quote_char == '\"') | |
685 | { | |
686 | int len = is_ada_operator (PARSER_STREAM (parser)); | |
50641945 | 687 | |
40e084e1 KS |
688 | if (len != 0) |
689 | { | |
690 | /* The input is an Ada operator. Return the quoted string | |
691 | as-is. */ | |
692 | LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser); | |
693 | LS_TOKEN_STOKEN (token).length = len; | |
694 | PARSER_STREAM (parser) += len; | |
695 | return token; | |
696 | } | |
f8eba3c6 | 697 | |
40e084e1 KS |
698 | /* The input does not represent an Ada operator -- fall through |
699 | to normal quoted string handling. */ | |
700 | } | |
f8eba3c6 | 701 | |
40e084e1 KS |
702 | /* Skip past the beginning quote. */ |
703 | ++(PARSER_STREAM (parser)); | |
74ccd7f5 | 704 | |
40e084e1 KS |
705 | /* Mark the start of the string. */ |
706 | LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser); | |
f8eba3c6 | 707 | |
40e084e1 KS |
708 | /* Skip to the ending quote. */ |
709 | end = skip_quote_char (PARSER_STREAM (parser), quote_char); | |
710 | ||
c45ec17c PA |
711 | /* This helps the completer mode decide whether we have a |
712 | complete string. */ | |
713 | parser->completion_quote_char = quote_char; | |
714 | parser->completion_quote_end = end; | |
40e084e1 | 715 | |
c45ec17c PA |
716 | /* Error if the input did not terminate properly, unless in |
717 | completion mode. */ | |
718 | if (end == NULL) | |
719 | { | |
720 | if (parser->completion_tracker == NULL) | |
721 | error (_("unmatched quote")); | |
722 | ||
723 | /* In completion mode, we'll try to complete the incomplete | |
724 | token. */ | |
725 | token.type = LSTOKEN_STRING; | |
726 | while (*PARSER_STREAM (parser) != '\0') | |
727 | PARSER_STREAM (parser)++; | |
728 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - 1 - start; | |
729 | } | |
730 | else | |
731 | { | |
732 | /* Skip over the ending quote and mark the length of the string. */ | |
733 | PARSER_STREAM (parser) = (char *) ++end; | |
734 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - 2 - start; | |
735 | } | |
40e084e1 KS |
736 | } |
737 | else | |
738 | { | |
d7561cbb | 739 | const char *p; |
40e084e1 KS |
740 | |
741 | /* Otherwise, only identifier characters are permitted. | |
742 | Spaces are the exception. In general, we keep spaces, | |
743 | but only if the next characters in the input do not resolve | |
744 | to one of the keywords. | |
745 | ||
746 | This allows users to forgo quoting CV-qualifiers, template arguments, | |
747 | and similar common language constructs. */ | |
748 | ||
749 | while (1) | |
750 | { | |
751 | if (isspace (*PARSER_STREAM (parser))) | |
752 | { | |
f1735a53 | 753 | p = skip_spaces (PARSER_STREAM (parser)); |
7c09e5a0 DE |
754 | /* When we get here we know we've found something followed by |
755 | a space (we skip over parens and templates below). | |
756 | So if we find a keyword now, we know it is a keyword and not, | |
757 | say, a function name. */ | |
40e084e1 KS |
758 | if (linespec_lexer_lex_keyword (p) != NULL) |
759 | { | |
760 | LS_TOKEN_STOKEN (token).ptr = start; | |
761 | LS_TOKEN_STOKEN (token).length | |
762 | = PARSER_STREAM (parser) - start; | |
763 | return token; | |
764 | } | |
765 | ||
766 | /* Advance past the whitespace. */ | |
767 | PARSER_STREAM (parser) = p; | |
768 | } | |
769 | ||
770 | /* If the next character is EOI or (single) ':', the | |
771 | string is complete; return the token. */ | |
772 | if (*PARSER_STREAM (parser) == 0) | |
773 | { | |
774 | LS_TOKEN_STOKEN (token).ptr = start; | |
775 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
776 | return token; | |
777 | } | |
778 | else if (PARSER_STREAM (parser)[0] == ':') | |
779 | { | |
780 | /* Do not tokenize the C++ scope operator. */ | |
781 | if (PARSER_STREAM (parser)[1] == ':') | |
782 | ++(PARSER_STREAM (parser)); | |
783 | ||
bd69330d PA |
784 | /* Do not tokenize ABI tags such as "[abi:cxx11]". */ |
785 | else if (PARSER_STREAM (parser) - start > 4 | |
786 | && startswith (PARSER_STREAM (parser) - 4, "[abi")) | |
f19e22e9 TV |
787 | { |
788 | /* Nothing. */ | |
789 | } | |
bd69330d | 790 | |
40e084e1 KS |
791 | /* Do not tokenify if the input length so far is one |
792 | (i.e, a single-letter drive name) and the next character | |
793 | is a directory separator. This allows Windows-style | |
794 | paths to be recognized as filenames without quoting it. */ | |
795 | else if ((PARSER_STREAM (parser) - start) != 1 | |
796 | || !IS_DIR_SEPARATOR (PARSER_STREAM (parser)[1])) | |
797 | { | |
798 | LS_TOKEN_STOKEN (token).ptr = start; | |
799 | LS_TOKEN_STOKEN (token).length | |
800 | = PARSER_STREAM (parser) - start; | |
801 | return token; | |
802 | } | |
803 | } | |
804 | /* Special case: permit quote-enclosed linespecs. */ | |
805 | else if (parser->is_quote_enclosed | |
806 | && strchr (linespec_quote_characters, | |
807 | *PARSER_STREAM (parser)) | |
808 | && is_closing_quote_enclosed (PARSER_STREAM (parser))) | |
809 | { | |
810 | LS_TOKEN_STOKEN (token).ptr = start; | |
811 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
812 | return token; | |
813 | } | |
814 | /* Because commas may terminate a linespec and appear in | |
815 | the middle of valid string input, special cases for | |
816 | '<' and '(' are necessary. */ | |
817 | else if (*PARSER_STREAM (parser) == '<' | |
818 | || *PARSER_STREAM (parser) == '(') | |
819 | { | |
be966d42 PA |
820 | /* Don't interpret 'operator<' / 'operator<<' as a |
821 | template parameter list though. */ | |
822 | if (*PARSER_STREAM (parser) == '<' | |
823 | && (PARSER_STATE (parser)->language->la_language | |
824 | == language_cplus) | |
825 | && (PARSER_STREAM (parser) - start) >= CP_OPERATOR_LEN) | |
826 | { | |
b926417a | 827 | const char *op = PARSER_STREAM (parser); |
be966d42 | 828 | |
b926417a TT |
829 | while (op > start && isspace (op[-1])) |
830 | op--; | |
831 | if (op - start >= CP_OPERATOR_LEN) | |
be966d42 | 832 | { |
b926417a TT |
833 | op -= CP_OPERATOR_LEN; |
834 | if (strncmp (op, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0 | |
835 | && (op == start | |
836 | || !(isalnum (op[-1]) || op[-1] == '_'))) | |
be966d42 PA |
837 | { |
838 | /* This is an operator name. Keep going. */ | |
839 | ++(PARSER_STREAM (parser)); | |
840 | if (*PARSER_STREAM (parser) == '<') | |
841 | ++(PARSER_STREAM (parser)); | |
842 | continue; | |
843 | } | |
844 | } | |
845 | } | |
846 | ||
b926417a TT |
847 | const char *end = find_parameter_list_end (PARSER_STREAM (parser)); |
848 | PARSER_STREAM (parser) = end; | |
40e084e1 | 849 | |
be966d42 PA |
850 | /* Don't loop around to the normal \0 case above because |
851 | we don't want to misinterpret a potential keyword at | |
852 | the end of the token when the string isn't | |
853 | "()<>"-balanced. This handles "b | |
854 | function(thread<tab>" in completion mode. */ | |
b926417a | 855 | if (*end == '\0') |
40e084e1 | 856 | { |
be966d42 PA |
857 | LS_TOKEN_STOKEN (token).ptr = start; |
858 | LS_TOKEN_STOKEN (token).length | |
859 | = PARSER_STREAM (parser) - start; | |
860 | return token; | |
40e084e1 | 861 | } |
be966d42 PA |
862 | else |
863 | continue; | |
40e084e1 KS |
864 | } |
865 | /* Commas are terminators, but not if they are part of an | |
866 | operator name. */ | |
867 | else if (*PARSER_STREAM (parser) == ',') | |
868 | { | |
869 | if ((PARSER_STATE (parser)->language->la_language | |
870 | == language_cplus) | |
8090b426 | 871 | && (PARSER_STREAM (parser) - start) > CP_OPERATOR_LEN) |
40e084e1 | 872 | { |
b926417a | 873 | const char *op = strstr (start, CP_OPERATOR_STR); |
40e084e1 | 874 | |
b926417a | 875 | if (op != NULL && is_operator_name (op)) |
40e084e1 KS |
876 | { |
877 | /* This is an operator name. Keep going. */ | |
878 | ++(PARSER_STREAM (parser)); | |
879 | continue; | |
880 | } | |
881 | } | |
882 | ||
883 | /* Comma terminates the string. */ | |
884 | LS_TOKEN_STOKEN (token).ptr = start; | |
885 | LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start; | |
886 | return token; | |
887 | } | |
888 | ||
889 | /* Advance the stream. */ | |
f19e22e9 | 890 | gdb_assert (*(PARSER_STREAM (parser)) != '\0'); |
40e084e1 KS |
891 | ++(PARSER_STREAM (parser)); |
892 | } | |
893 | } | |
894 | ||
895 | return token; | |
896 | } | |
897 | ||
898 | /* Lex a single linespec token from PARSER. */ | |
899 | ||
900 | static linespec_token | |
901 | linespec_lexer_lex_one (linespec_parser *parser) | |
902 | { | |
903 | const char *keyword; | |
904 | ||
905 | if (parser->lexer.current.type == LSTOKEN_CONSUMED) | |
906 | { | |
907 | /* Skip any whitespace. */ | |
f1735a53 | 908 | PARSER_STREAM (parser) = skip_spaces (PARSER_STREAM (parser)); |
40e084e1 | 909 | |
7c09e5a0 | 910 | /* Check for a keyword, they end the linespec. */ |
0578b14e | 911 | keyword = linespec_lexer_lex_keyword (PARSER_STREAM (parser)); |
40e084e1 KS |
912 | if (keyword != NULL) |
913 | { | |
914 | parser->lexer.current.type = LSTOKEN_KEYWORD; | |
915 | LS_TOKEN_KEYWORD (parser->lexer.current) = keyword; | |
0578b14e KS |
916 | /* We do not advance the stream here intentionally: |
917 | we would like lexing to stop when a keyword is seen. | |
918 | ||
919 | PARSER_STREAM (parser) += strlen (keyword); */ | |
920 | ||
40e084e1 KS |
921 | return parser->lexer.current; |
922 | } | |
923 | ||
924 | /* Handle other tokens. */ | |
925 | switch (*PARSER_STREAM (parser)) | |
926 | { | |
927 | case 0: | |
928 | parser->lexer.current.type = LSTOKEN_EOI; | |
929 | break; | |
930 | ||
931 | case '+': case '-': | |
932 | case '0': case '1': case '2': case '3': case '4': | |
dda83cd7 SM |
933 | case '5': case '6': case '7': case '8': case '9': |
934 | if (!linespec_lexer_lex_number (parser, &(parser->lexer.current))) | |
d7cbec71 | 935 | parser->lexer.current = linespec_lexer_lex_string (parser); |
dda83cd7 | 936 | break; |
40e084e1 KS |
937 | |
938 | case ':': | |
939 | /* If we have a scope operator, lex the input as a string. | |
940 | Otherwise, return LSTOKEN_COLON. */ | |
941 | if (PARSER_STREAM (parser)[1] == ':') | |
942 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
943 | else | |
944 | { | |
945 | parser->lexer.current.type = LSTOKEN_COLON; | |
946 | ++(PARSER_STREAM (parser)); | |
947 | } | |
948 | break; | |
949 | ||
950 | case '\'': case '\"': | |
951 | /* Special case: permit quote-enclosed linespecs. */ | |
952 | if (parser->is_quote_enclosed | |
953 | && is_closing_quote_enclosed (PARSER_STREAM (parser))) | |
954 | { | |
955 | ++(PARSER_STREAM (parser)); | |
956 | parser->lexer.current.type = LSTOKEN_EOI; | |
957 | } | |
958 | else | |
959 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
960 | break; | |
961 | ||
962 | case ',': | |
963 | parser->lexer.current.type = LSTOKEN_COMMA; | |
964 | LS_TOKEN_STOKEN (parser->lexer.current).ptr | |
965 | = PARSER_STREAM (parser); | |
966 | LS_TOKEN_STOKEN (parser->lexer.current).length = 1; | |
967 | ++(PARSER_STREAM (parser)); | |
968 | break; | |
969 | ||
970 | default: | |
971 | /* If the input is not a number, it must be a string. | |
972 | [Keywords were already considered above.] */ | |
973 | parser->lexer.current = linespec_lexer_lex_string (parser); | |
974 | break; | |
975 | } | |
976 | } | |
977 | ||
978 | return parser->lexer.current; | |
979 | } | |
980 | ||
981 | /* Consume the current token and return the next token in PARSER's | |
c45ec17c PA |
982 | input stream. Also advance the completion word for completion |
983 | mode. */ | |
40e084e1 KS |
984 | |
985 | static linespec_token | |
986 | linespec_lexer_consume_token (linespec_parser *parser) | |
987 | { | |
c45ec17c PA |
988 | gdb_assert (parser->lexer.current.type != LSTOKEN_EOI); |
989 | ||
990 | bool advance_word = (parser->lexer.current.type != LSTOKEN_STRING | |
991 | || *PARSER_STREAM (parser) != '\0'); | |
992 | ||
993 | /* If we're moving past a string to some other token, it must be the | |
994 | quote was terminated. */ | |
995 | if (parser->completion_quote_char) | |
996 | { | |
997 | gdb_assert (parser->lexer.current.type == LSTOKEN_STRING); | |
998 | ||
999 | /* If the string was the last (non-EOI) token, we're past the | |
1000 | quote, but remember that for later. */ | |
1001 | if (*PARSER_STREAM (parser) != '\0') | |
1002 | { | |
1003 | parser->completion_quote_char = '\0'; | |
1004 | parser->completion_quote_end = NULL;; | |
1005 | } | |
1006 | } | |
1007 | ||
40e084e1 | 1008 | parser->lexer.current.type = LSTOKEN_CONSUMED; |
c45ec17c PA |
1009 | linespec_lexer_lex_one (parser); |
1010 | ||
1011 | if (parser->lexer.current.type == LSTOKEN_STRING) | |
1012 | { | |
1013 | /* Advance the completion word past a potential initial | |
1014 | quote-char. */ | |
1015 | parser->completion_word = LS_TOKEN_STOKEN (parser->lexer.current).ptr; | |
1016 | } | |
1017 | else if (advance_word) | |
1018 | { | |
1019 | /* Advance the completion word past any whitespace. */ | |
1020 | parser->completion_word = PARSER_STREAM (parser); | |
1021 | } | |
1022 | ||
1023 | return parser->lexer.current; | |
40e084e1 KS |
1024 | } |
1025 | ||
1026 | /* Return the next token without consuming the current token. */ | |
1027 | ||
1028 | static linespec_token | |
1029 | linespec_lexer_peek_token (linespec_parser *parser) | |
1030 | { | |
1031 | linespec_token next; | |
d7561cbb | 1032 | const char *saved_stream = PARSER_STREAM (parser); |
40e084e1 | 1033 | linespec_token saved_token = parser->lexer.current; |
c45ec17c PA |
1034 | int saved_completion_quote_char = parser->completion_quote_char; |
1035 | const char *saved_completion_quote_end = parser->completion_quote_end; | |
1036 | const char *saved_completion_word = parser->completion_word; | |
40e084e1 KS |
1037 | |
1038 | next = linespec_lexer_consume_token (parser); | |
1039 | PARSER_STREAM (parser) = saved_stream; | |
1040 | parser->lexer.current = saved_token; | |
c45ec17c PA |
1041 | parser->completion_quote_char = saved_completion_quote_char; |
1042 | parser->completion_quote_end = saved_completion_quote_end; | |
1043 | parser->completion_word = saved_completion_word; | |
40e084e1 KS |
1044 | return next; |
1045 | } | |
1046 | ||
1047 | /* Helper functions. */ | |
1048 | ||
40e084e1 KS |
1049 | /* Add SAL to SALS, and also update SELF->CANONICAL_NAMES to reflect |
1050 | the new sal, if needed. If not NULL, SYMNAME is the name of the | |
66f1999b KS |
1051 | symbol to use when constructing the new canonical name. |
1052 | ||
1053 | If LITERAL_CANONICAL is non-zero, SYMNAME will be used as the | |
1054 | canonical name for the SAL. */ | |
40e084e1 KS |
1055 | |
1056 | static void | |
1057 | add_sal_to_sals (struct linespec_state *self, | |
6c5b2ebe | 1058 | std::vector<symtab_and_line> *sals, |
40e084e1 | 1059 | struct symtab_and_line *sal, |
66f1999b | 1060 | const char *symname, int literal_canonical) |
40e084e1 | 1061 | { |
6c5b2ebe | 1062 | sals->push_back (*sal); |
40e084e1 KS |
1063 | |
1064 | if (self->canonical) | |
1065 | { | |
33f448b1 | 1066 | struct linespec_canonical_name *canonical; |
40e084e1 | 1067 | |
224c3ddb | 1068 | self->canonical_names = XRESIZEVEC (struct linespec_canonical_name, |
6c5b2ebe PA |
1069 | self->canonical_names, |
1070 | sals->size ()); | |
1071 | canonical = &self->canonical_names[sals->size () - 1]; | |
4e04028d | 1072 | if (!literal_canonical && sal->symtab) |
40e084e1 | 1073 | { |
df140a0b TS |
1074 | symtab_to_fullname (sal->symtab); |
1075 | ||
40e084e1 KS |
1076 | /* Note that the filter doesn't have to be a valid linespec |
1077 | input. We only apply the ":LINE" treatment to Ada for | |
1078 | the time being. */ | |
1079 | if (symname != NULL && sal->line != 0 | |
1080 | && self->language->la_language == language_ada) | |
33f448b1 | 1081 | canonical->suffix = xstrprintf ("%s:%d", symname, sal->line); |
40e084e1 | 1082 | else if (symname != NULL) |
33f448b1 | 1083 | canonical->suffix = xstrdup (symname); |
40e084e1 | 1084 | else |
33f448b1 JK |
1085 | canonical->suffix = xstrprintf ("%d", sal->line); |
1086 | canonical->symtab = sal->symtab; | |
1087 | } | |
1088 | else | |
1089 | { | |
1090 | if (symname != NULL) | |
1091 | canonical->suffix = xstrdup (symname); | |
1092 | else | |
e617b069 | 1093 | canonical->suffix = xstrdup ("<unknown>"); |
33f448b1 | 1094 | canonical->symtab = NULL; |
40e084e1 | 1095 | } |
40e084e1 KS |
1096 | } |
1097 | } | |
1098 | ||
1099 | /* A hash function for address_entry. */ | |
1100 | ||
1101 | static hashval_t | |
1102 | hash_address_entry (const void *p) | |
1103 | { | |
9a3c8263 | 1104 | const struct address_entry *aep = (const struct address_entry *) p; |
40e084e1 KS |
1105 | hashval_t hash; |
1106 | ||
1107 | hash = iterative_hash_object (aep->pspace, 0); | |
1108 | return iterative_hash_object (aep->addr, hash); | |
1109 | } | |
1110 | ||
1111 | /* An equality function for address_entry. */ | |
1112 | ||
1113 | static int | |
1114 | eq_address_entry (const void *a, const void *b) | |
1115 | { | |
9a3c8263 SM |
1116 | const struct address_entry *aea = (const struct address_entry *) a; |
1117 | const struct address_entry *aeb = (const struct address_entry *) b; | |
40e084e1 KS |
1118 | |
1119 | return aea->pspace == aeb->pspace && aea->addr == aeb->addr; | |
1120 | } | |
1121 | ||
1122 | /* Check whether the address, represented by PSPACE and ADDR, is | |
1123 | already in the set. If so, return 0. Otherwise, add it and return | |
1124 | 1. */ | |
1125 | ||
1126 | static int | |
1127 | maybe_add_address (htab_t set, struct program_space *pspace, CORE_ADDR addr) | |
1128 | { | |
1129 | struct address_entry e, *p; | |
1130 | void **slot; | |
1131 | ||
1132 | e.pspace = pspace; | |
1133 | e.addr = addr; | |
1134 | slot = htab_find_slot (set, &e, INSERT); | |
1135 | if (*slot) | |
1136 | return 0; | |
1137 | ||
1138 | p = XNEW (struct address_entry); | |
1139 | memcpy (p, &e, sizeof (struct address_entry)); | |
1140 | *slot = p; | |
1141 | ||
1142 | return 1; | |
1143 | } | |
1144 | ||
40e084e1 KS |
1145 | /* A helper that walks over all matching symtabs in all objfiles and |
1146 | calls CALLBACK for each symbol matching NAME. If SEARCH_PSPACE is | |
1147 | not NULL, then the search is restricted to just that program | |
14bc53a8 | 1148 | space. If INCLUDE_INLINE is true then symbols representing |
40e084e1 KS |
1149 | inlined instances of functions will be included in the result. */ |
1150 | ||
1151 | static void | |
14bc53a8 | 1152 | iterate_over_all_matching_symtabs |
b5ec771e PA |
1153 | (struct linespec_state *state, |
1154 | const lookup_name_info &lookup_name, | |
1155 | const domain_enum name_domain, | |
56d87ef7 | 1156 | enum search_domain search_domain, |
14bc53a8 PA |
1157 | struct program_space *search_pspace, bool include_inline, |
1158 | gdb::function_view<symbol_found_callback_ftype> callback) | |
40e084e1 | 1159 | { |
94c93c35 TT |
1160 | for (struct program_space *pspace : program_spaces) |
1161 | { | |
1162 | if (search_pspace != NULL && search_pspace != pspace) | |
1163 | continue; | |
1164 | if (pspace->executing_startup) | |
1165 | continue; | |
f8eba3c6 | 1166 | |
94c93c35 | 1167 | set_current_program_space (pspace); |
50641945 | 1168 | |
94c93c35 TT |
1169 | for (objfile *objfile : current_program_space->objfiles ()) |
1170 | { | |
4d080b46 TT |
1171 | objfile->expand_symtabs_matching (NULL, &lookup_name, NULL, NULL, |
1172 | search_domain); | |
94c93c35 TT |
1173 | |
1174 | for (compunit_symtab *cu : objfile->compunits ()) | |
1175 | { | |
1176 | struct symtab *symtab = COMPUNIT_FILETABS (cu); | |
43f3e411 | 1177 | |
94c93c35 TT |
1178 | iterate_over_file_blocks (symtab, lookup_name, name_domain, |
1179 | callback); | |
481860b3 | 1180 | |
94c93c35 TT |
1181 | if (include_inline) |
1182 | { | |
1183 | const struct block *block; | |
1184 | int i; | |
481860b3 | 1185 | |
94c93c35 TT |
1186 | for (i = FIRST_LOCAL_BLOCK; |
1187 | i < BLOCKVECTOR_NBLOCKS (SYMTAB_BLOCKVECTOR (symtab)); | |
1188 | i++) | |
1189 | { | |
1190 | block = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab), i); | |
4009ee92 | 1191 | state->language->iterate_over_symbols |
94c93c35 TT |
1192 | (block, lookup_name, name_domain, |
1193 | [&] (block_symbol *bsym) | |
1194 | { | |
1195 | /* Restrict calls to CALLBACK to symbols | |
1196 | representing inline symbols only. */ | |
1197 | if (SYMBOL_INLINED (bsym->symbol)) | |
1198 | return callback (bsym); | |
1199 | return true; | |
1200 | }); | |
1201 | } | |
1202 | } | |
1203 | } | |
1204 | } | |
1205 | } | |
50641945 FN |
1206 | } |
1207 | ||
4eeaa230 DE |
1208 | /* Returns the block to be used for symbol searches from |
1209 | the current location. */ | |
e8eb7bc5 | 1210 | |
3977b71f | 1211 | static const struct block * |
e482a1a7 | 1212 | get_current_search_block (void) |
e8eb7bc5 | 1213 | { |
4eeaa230 DE |
1214 | /* get_selected_block can change the current language when there is |
1215 | no selected frame yet. */ | |
9bb9b2f9 TT |
1216 | scoped_restore_current_language save_language; |
1217 | return get_selected_block (0); | |
e8eb7bc5 KS |
1218 | } |
1219 | ||
4eeaa230 DE |
1220 | /* Iterate over static and global blocks. */ |
1221 | ||
1222 | static void | |
14bc53a8 | 1223 | iterate_over_file_blocks |
b5ec771e PA |
1224 | (struct symtab *symtab, const lookup_name_info &name, |
1225 | domain_enum domain, gdb::function_view<symbol_found_callback_ftype> callback) | |
4eeaa230 | 1226 | { |
582942f4 | 1227 | const struct block *block; |
4eeaa230 | 1228 | |
439247b6 | 1229 | for (block = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab), STATIC_BLOCK); |
4eeaa230 DE |
1230 | block != NULL; |
1231 | block = BLOCK_SUPERBLOCK (block)) | |
4b2f86ef | 1232 | current_language->iterate_over_symbols (block, name, domain, callback); |
4eeaa230 DE |
1233 | } |
1234 | ||
b5ec771e PA |
1235 | /* A helper for find_method. This finds all methods in type T of |
1236 | language T_LANG which match NAME. It adds matching symbol names to | |
1237 | RESULT_NAMES, and adds T's direct superclasses to SUPERCLASSES. */ | |
50641945 | 1238 | |
f8eba3c6 | 1239 | static void |
b5ec771e | 1240 | find_methods (struct type *t, enum language t_lang, const char *name, |
9b2f8581 | 1241 | std::vector<const char *> *result_names, |
8e8d776e | 1242 | std::vector<struct type *> *superclasses) |
50641945 | 1243 | { |
50641945 | 1244 | int ibase; |
7d93a1e0 | 1245 | const char *class_name = t->name (); |
c00f8484 | 1246 | |
50641945 FN |
1247 | /* Ignore this class if it doesn't have a name. This is ugly, but |
1248 | unless we figure out how to get the physname without the name of | |
1249 | the class, then the loop can't do any good. */ | |
f8eba3c6 | 1250 | if (class_name) |
50641945 FN |
1251 | { |
1252 | int method_counter; | |
b5ec771e PA |
1253 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
1254 | symbol_name_matcher_ftype *symbol_name_compare | |
c9debfb9 | 1255 | = language_def (t_lang)->get_symbol_name_matcher (lookup_name); |
50641945 | 1256 | |
f168693b | 1257 | t = check_typedef (t); |
50641945 FN |
1258 | |
1259 | /* Loop over each method name. At this level, all overloads of a name | |
dda83cd7 SM |
1260 | are counted as a single name. There is an inner loop which loops over |
1261 | each overload. */ | |
50641945 FN |
1262 | |
1263 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
1264 | method_counter >= 0; | |
1265 | --method_counter) | |
1266 | { | |
0d5cff50 | 1267 | const char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
50641945 | 1268 | |
b5ec771e | 1269 | if (symbol_name_compare (method_name, lookup_name, NULL)) |
f8eba3c6 TT |
1270 | { |
1271 | int field_counter; | |
aee8d8ba | 1272 | |
f8eba3c6 TT |
1273 | for (field_counter = (TYPE_FN_FIELDLIST_LENGTH (t, method_counter) |
1274 | - 1); | |
1275 | field_counter >= 0; | |
1276 | --field_counter) | |
1277 | { | |
1278 | struct fn_field *f; | |
1279 | const char *phys_name; | |
1280 | ||
1281 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
1282 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
1283 | continue; | |
1284 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
9b2f8581 | 1285 | result_names->push_back (phys_name); |
f8eba3c6 TT |
1286 | } |
1287 | } | |
aee8d8ba DC |
1288 | } |
1289 | } | |
1290 | ||
f8eba3c6 | 1291 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) |
8e8d776e | 1292 | superclasses->push_back (TYPE_BASECLASS (t, ibase)); |
50641945 FN |
1293 | } |
1294 | ||
50641945 FN |
1295 | /* Find an instance of the character C in the string S that is outside |
1296 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 | 1297 | strings. Also, ignore the char within a template name, like a ',' |
be966d42 | 1298 | within foo<int, int>, while considering C++ operator</operator<<. */ |
8120c9d5 | 1299 | |
87f0e720 | 1300 | const char * |
40e084e1 | 1301 | find_toplevel_char (const char *s, char c) |
50641945 FN |
1302 | { |
1303 | int quoted = 0; /* zero if we're not in quotes; | |
1304 | '"' if we're in a double-quoted string; | |
1305 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 1306 | int depth = 0; /* Number of unclosed parens we've seen. */ |
40e084e1 | 1307 | const char *scan; |
50641945 FN |
1308 | |
1309 | for (scan = s; *scan; scan++) | |
1310 | { | |
1311 | if (quoted) | |
1312 | { | |
1313 | if (*scan == quoted) | |
1314 | quoted = 0; | |
1315 | else if (*scan == '\\' && *(scan + 1)) | |
1316 | scan++; | |
1317 | } | |
1318 | else if (*scan == c && ! quoted && depth == 0) | |
1319 | return scan; | |
1320 | else if (*scan == '"' || *scan == '\'') | |
1321 | quoted = *scan; | |
8120c9d5 | 1322 | else if (*scan == '(' || *scan == '<') |
50641945 | 1323 | depth++; |
8120c9d5 | 1324 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 | 1325 | depth--; |
be966d42 PA |
1326 | else if (*scan == 'o' && !quoted && depth == 0) |
1327 | { | |
1328 | /* Handle C++ operator names. */ | |
1329 | if (strncmp (scan, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0) | |
1330 | { | |
1331 | scan += CP_OPERATOR_LEN; | |
1332 | if (*scan == c) | |
1333 | return scan; | |
1334 | while (isspace (*scan)) | |
1335 | { | |
1336 | ++scan; | |
1337 | if (*scan == c) | |
1338 | return scan; | |
1339 | } | |
1340 | if (*scan == '\0') | |
1341 | break; | |
1342 | ||
1343 | switch (*scan) | |
1344 | { | |
1345 | /* Skip over one less than the appropriate number of | |
1346 | characters: the for loop will skip over the last | |
1347 | one. */ | |
1348 | case '<': | |
1349 | if (scan[1] == '<') | |
1350 | { | |
1351 | scan++; | |
1352 | if (*scan == c) | |
1353 | return scan; | |
1354 | } | |
1355 | break; | |
1356 | case '>': | |
1357 | if (scan[1] == '>') | |
1358 | { | |
1359 | scan++; | |
1360 | if (*scan == c) | |
1361 | return scan; | |
1362 | } | |
1363 | break; | |
1364 | } | |
1365 | } | |
1366 | } | |
50641945 FN |
1367 | } |
1368 | ||
1369 | return 0; | |
1370 | } | |
1371 | ||
40e084e1 KS |
1372 | /* The string equivalent of find_toplevel_char. Returns a pointer |
1373 | to the location of NEEDLE in HAYSTACK, ignoring any occurrences | |
1374 | inside "()" and "<>". Returns NULL if NEEDLE was not found. */ | |
889f28e2 | 1375 | |
40e084e1 KS |
1376 | static const char * |
1377 | find_toplevel_string (const char *haystack, const char *needle) | |
889f28e2 | 1378 | { |
40e084e1 KS |
1379 | const char *s = haystack; |
1380 | ||
1381 | do | |
1382 | { | |
1383 | s = find_toplevel_char (s, *needle); | |
1384 | ||
1385 | if (s != NULL) | |
1386 | { | |
1387 | /* Found first char in HAYSTACK; check rest of string. */ | |
61012eef | 1388 | if (startswith (s, needle)) |
40e084e1 KS |
1389 | return s; |
1390 | ||
1391 | /* Didn't find it; loop over HAYSTACK, looking for the next | |
1392 | instance of the first character of NEEDLE. */ | |
1393 | ++s; | |
1394 | } | |
1395 | } | |
1396 | while (s != NULL && *s != '\0'); | |
1397 | ||
1398 | /* NEEDLE was not found in HAYSTACK. */ | |
1399 | return NULL; | |
889f28e2 AF |
1400 | } |
1401 | ||
33f448b1 | 1402 | /* Convert CANONICAL to its string representation using |
53a0f8a2 | 1403 | symtab_to_fullname for SYMTAB. */ |
33f448b1 | 1404 | |
53a0f8a2 | 1405 | static std::string |
33f448b1 JK |
1406 | canonical_to_fullform (const struct linespec_canonical_name *canonical) |
1407 | { | |
1408 | if (canonical->symtab == NULL) | |
53a0f8a2 | 1409 | return canonical->suffix; |
33f448b1 | 1410 | else |
53a0f8a2 TT |
1411 | return string_printf ("%s:%s", symtab_to_fullname (canonical->symtab), |
1412 | canonical->suffix); | |
33f448b1 JK |
1413 | } |
1414 | ||
f8eba3c6 TT |
1415 | /* Given FILTERS, a list of canonical names, filter the sals in RESULT |
1416 | and store the result in SELF->CANONICAL. */ | |
50641945 | 1417 | |
f8eba3c6 TT |
1418 | static void |
1419 | filter_results (struct linespec_state *self, | |
6c5b2ebe | 1420 | std::vector<symtab_and_line> *result, |
f73c6ece | 1421 | const std::vector<const char *> &filters) |
f8eba3c6 | 1422 | { |
f73c6ece | 1423 | for (const char *name : filters) |
f8eba3c6 | 1424 | { |
6c5b2ebe | 1425 | linespec_sals lsal; |
f8eba3c6 | 1426 | |
6c5b2ebe | 1427 | for (size_t j = 0; j < result->size (); ++j) |
f8eba3c6 | 1428 | { |
33f448b1 | 1429 | const struct linespec_canonical_name *canonical; |
33f448b1 JK |
1430 | |
1431 | canonical = &self->canonical_names[j]; | |
53a0f8a2 | 1432 | std::string fullform = canonical_to_fullform (canonical); |
33f448b1 | 1433 | |
53a0f8a2 | 1434 | if (name == fullform) |
6c5b2ebe | 1435 | lsal.sals.push_back ((*result)[j]); |
f8eba3c6 TT |
1436 | } |
1437 | ||
6c5b2ebe | 1438 | if (!lsal.sals.empty ()) |
f8eba3c6 TT |
1439 | { |
1440 | lsal.canonical = xstrdup (name); | |
6c5b2ebe | 1441 | self->canonical->lsals.push_back (std::move (lsal)); |
f8eba3c6 TT |
1442 | } |
1443 | } | |
1444 | ||
1445 | self->canonical->pre_expanded = 0; | |
1446 | } | |
1447 | ||
1448 | /* Store RESULT into SELF->CANONICAL. */ | |
1449 | ||
1450 | static void | |
1451 | convert_results_to_lsals (struct linespec_state *self, | |
6c5b2ebe | 1452 | std::vector<symtab_and_line> *result) |
50641945 | 1453 | { |
f8eba3c6 TT |
1454 | struct linespec_sals lsal; |
1455 | ||
1456 | lsal.canonical = NULL; | |
6c5b2ebe PA |
1457 | lsal.sals = std::move (*result); |
1458 | self->canonical->lsals.push_back (std::move (lsal)); | |
f8eba3c6 TT |
1459 | } |
1460 | ||
33f448b1 JK |
1461 | /* A structure that contains two string representations of a struct |
1462 | linespec_canonical_name: | |
6471e7d2 | 1463 | - one where the symtab's fullname is used; |
33f448b1 JK |
1464 | - one where the filename followed the "set filename-display" |
1465 | setting. */ | |
1466 | ||
1467 | struct decode_line_2_item | |
1468 | { | |
53a0f8a2 TT |
1469 | decode_line_2_item (std::string &&fullform_, std::string &&displayform_, |
1470 | bool selected_) | |
1471 | : fullform (std::move (fullform_)), | |
1472 | displayform (std::move (displayform_)), | |
1473 | selected (selected_) | |
1474 | { | |
1475 | } | |
33f448b1 | 1476 | |
53a0f8a2 TT |
1477 | /* The form using symtab_to_fullname. */ |
1478 | std::string fullform; | |
1479 | ||
1480 | /* The form using symtab_to_filename_for_display. */ | |
1481 | std::string displayform; | |
33f448b1 JK |
1482 | |
1483 | /* Field is initialized to zero and it is set to one if the user | |
1484 | requested breakpoint for this entry. */ | |
1485 | unsigned int selected : 1; | |
1486 | }; | |
1487 | ||
53a0f8a2 TT |
1488 | /* Helper for std::sort to sort decode_line_2_item entries by |
1489 | DISPLAYFORM and secondarily by FULLFORM. */ | |
33f448b1 | 1490 | |
53a0f8a2 TT |
1491 | static bool |
1492 | decode_line_2_compare_items (const decode_line_2_item &a, | |
1493 | const decode_line_2_item &b) | |
33f448b1 | 1494 | { |
53a0f8a2 TT |
1495 | if (a.displayform != b.displayform) |
1496 | return a.displayform < b.displayform; | |
1497 | return a.fullform < b.fullform; | |
33f448b1 JK |
1498 | } |
1499 | ||
f8eba3c6 TT |
1500 | /* Handle multiple results in RESULT depending on SELECT_MODE. This |
1501 | will either return normally, throw an exception on multiple | |
1502 | results, or present a menu to the user. On return, the SALS vector | |
1503 | in SELF->CANONICAL is set up properly. */ | |
1504 | ||
1505 | static void | |
1506 | decode_line_2 (struct linespec_state *self, | |
6c5b2ebe | 1507 | std::vector<symtab_and_line> *result, |
f8eba3c6 TT |
1508 | const char *select_mode) |
1509 | { | |
992a7040 | 1510 | const char *args; |
a121b7c1 | 1511 | const char *prompt; |
50641945 | 1512 | int i; |
f73c6ece | 1513 | std::vector<const char *> filters; |
53a0f8a2 | 1514 | std::vector<struct decode_line_2_item> items; |
50641945 | 1515 | |
f8eba3c6 TT |
1516 | gdb_assert (select_mode != multiple_symbols_all); |
1517 | gdb_assert (self->canonical != NULL); | |
6c5b2ebe | 1518 | gdb_assert (!result->empty ()); |
33f448b1 | 1519 | |
33f448b1 | 1520 | /* Prepare ITEMS array. */ |
53a0f8a2 | 1521 | for (i = 0; i < result->size (); ++i) |
50641945 | 1522 | { |
33f448b1 | 1523 | const struct linespec_canonical_name *canonical; |
53a0f8a2 TT |
1524 | std::string displayform; |
1525 | ||
33f448b1 JK |
1526 | canonical = &self->canonical_names[i]; |
1527 | gdb_assert (canonical->suffix != NULL); | |
f8eba3c6 | 1528 | |
53a0f8a2 | 1529 | std::string fullform = canonical_to_fullform (canonical); |
33f448b1 JK |
1530 | |
1531 | if (canonical->symtab == NULL) | |
53a0f8a2 | 1532 | displayform = canonical->suffix; |
33f448b1 | 1533 | else |
f8eba3c6 | 1534 | { |
33f448b1 JK |
1535 | const char *fn_for_display; |
1536 | ||
1537 | fn_for_display = symtab_to_filename_for_display (canonical->symtab); | |
53a0f8a2 TT |
1538 | displayform = string_printf ("%s:%s", fn_for_display, |
1539 | canonical->suffix); | |
f8eba3c6 TT |
1540 | } |
1541 | ||
53a0f8a2 TT |
1542 | items.emplace_back (std::move (fullform), std::move (displayform), |
1543 | false); | |
50641945 FN |
1544 | } |
1545 | ||
33f448b1 | 1546 | /* Sort the list of method names. */ |
53a0f8a2 | 1547 | std::sort (items.begin (), items.end (), decode_line_2_compare_items); |
33f448b1 JK |
1548 | |
1549 | /* Remove entries with the same FULLFORM. */ | |
53a0f8a2 TT |
1550 | items.erase (std::unique (items.begin (), items.end (), |
1551 | [] (const struct decode_line_2_item &a, | |
1552 | const struct decode_line_2_item &b) | |
1553 | { | |
1554 | return a.fullform == b.fullform; | |
1555 | }), | |
1556 | items.end ()); | |
1557 | ||
1558 | if (select_mode == multiple_symbols_cancel && items.size () > 1) | |
f8eba3c6 TT |
1559 | error (_("canceled because the command is ambiguous\n" |
1560 | "See set/show multiple-symbol.")); | |
1561 | ||
53a0f8a2 | 1562 | if (select_mode == multiple_symbols_all || items.size () == 1) |
50641945 | 1563 | { |
f8eba3c6 TT |
1564 | convert_results_to_lsals (self, result); |
1565 | return; | |
50641945 FN |
1566 | } |
1567 | ||
f8eba3c6 | 1568 | printf_unfiltered (_("[0] cancel\n[1] all\n")); |
53a0f8a2 TT |
1569 | for (i = 0; i < items.size (); i++) |
1570 | printf_unfiltered ("[%d] %s\n", i + 2, items[i].displayform.c_str ()); | |
f8eba3c6 TT |
1571 | |
1572 | prompt = getenv ("PS2"); | |
1573 | if (prompt == NULL) | |
50641945 | 1574 | { |
f8eba3c6 | 1575 | prompt = "> "; |
50641945 | 1576 | } |
89fbedf3 | 1577 | args = command_line_input (prompt, "overload-choice"); |
50641945 FN |
1578 | |
1579 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 1580 | error_no_arg (_("one or more choice numbers")); |
50641945 | 1581 | |
bfd28288 PA |
1582 | number_or_range_parser parser (args); |
1583 | while (!parser.finished ()) | |
50641945 | 1584 | { |
bfd28288 | 1585 | int num = parser.get_number (); |
50641945 FN |
1586 | |
1587 | if (num == 0) | |
8a3fe4f8 | 1588 | error (_("canceled")); |
50641945 FN |
1589 | else if (num == 1) |
1590 | { | |
f8eba3c6 TT |
1591 | /* We intentionally make this result in a single breakpoint, |
1592 | contrary to what older versions of gdb did. The | |
1593 | rationale is that this lets a user get the | |
1594 | multiple_symbols_all behavior even with the 'ask' | |
1595 | setting; and he can get separate breakpoints by entering | |
1596 | "2-57" at the query. */ | |
f8eba3c6 TT |
1597 | convert_results_to_lsals (self, result); |
1598 | return; | |
50641945 FN |
1599 | } |
1600 | ||
f8eba3c6 | 1601 | num -= 2; |
53a0f8a2 | 1602 | if (num >= items.size ()) |
f8eba3c6 | 1603 | printf_unfiltered (_("No choice number %d.\n"), num); |
50641945 FN |
1604 | else |
1605 | { | |
33f448b1 | 1606 | struct decode_line_2_item *item = &items[num]; |
f8eba3c6 | 1607 | |
33f448b1 | 1608 | if (!item->selected) |
50641945 | 1609 | { |
f73c6ece | 1610 | filters.push_back (item->fullform.c_str ()); |
33f448b1 | 1611 | item->selected = 1; |
50641945 FN |
1612 | } |
1613 | else | |
1614 | { | |
3e43a32a | 1615 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
f6f99966 | 1616 | num + 2); |
50641945 FN |
1617 | } |
1618 | } | |
50641945 | 1619 | } |
f8eba3c6 TT |
1620 | |
1621 | filter_results (self, result, filters); | |
50641945 | 1622 | } |
94af9270 | 1623 | |
40e084e1 | 1624 | \f |
3d50dd94 | 1625 | |
40e084e1 KS |
1626 | /* The parser of linespec itself. */ |
1627 | ||
1628 | /* Throw an appropriate error when SYMBOL is not found (optionally in | |
1629 | FILENAME). */ | |
1630 | ||
1631 | static void ATTRIBUTE_NORETURN | |
5d94e27b | 1632 | symbol_not_found_error (const char *symbol, const char *filename) |
3d50dd94 | 1633 | { |
40e084e1 KS |
1634 | if (symbol == NULL) |
1635 | symbol = ""; | |
1636 | ||
1637 | if (!have_full_symbols () | |
1638 | && !have_partial_symbols () | |
1639 | && !have_minimal_symbols ()) | |
1640 | throw_error (NOT_FOUND_ERROR, | |
1641 | _("No symbol table is loaded. Use the \"file\" command.")); | |
1642 | ||
1643 | /* If SYMBOL starts with '$', the user attempted to either lookup | |
1644 | a function/variable in his code starting with '$' or an internal | |
1645 | variable of that name. Since we do not know which, be concise and | |
1646 | explain both possibilities. */ | |
1647 | if (*symbol == '$') | |
1648 | { | |
1649 | if (filename) | |
1650 | throw_error (NOT_FOUND_ERROR, | |
1651 | _("Undefined convenience variable or function \"%s\" " | |
1652 | "not defined in \"%s\"."), symbol, filename); | |
1653 | else | |
1654 | throw_error (NOT_FOUND_ERROR, | |
1655 | _("Undefined convenience variable or function \"%s\" " | |
1656 | "not defined."), symbol); | |
1657 | } | |
1658 | else | |
1659 | { | |
1660 | if (filename) | |
1661 | throw_error (NOT_FOUND_ERROR, | |
1662 | _("Function \"%s\" not defined in \"%s\"."), | |
1663 | symbol, filename); | |
1664 | else | |
1665 | throw_error (NOT_FOUND_ERROR, | |
1666 | _("Function \"%s\" not defined."), symbol); | |
1667 | } | |
3d50dd94 JK |
1668 | } |
1669 | ||
40e084e1 KS |
1670 | /* Throw an appropriate error when an unexpected token is encountered |
1671 | in the input. */ | |
94af9270 | 1672 | |
40e084e1 KS |
1673 | static void ATTRIBUTE_NORETURN |
1674 | unexpected_linespec_error (linespec_parser *parser) | |
94af9270 | 1675 | { |
40e084e1 KS |
1676 | linespec_token token; |
1677 | static const char * token_type_strings[] | |
1678 | = {"keyword", "colon", "string", "number", "comma", "end of input"}; | |
94af9270 | 1679 | |
40e084e1 KS |
1680 | /* Get the token that generated the error. */ |
1681 | token = linespec_lexer_lex_one (parser); | |
94af9270 | 1682 | |
40e084e1 KS |
1683 | /* Finally, throw the error. */ |
1684 | if (token.type == LSTOKEN_STRING || token.type == LSTOKEN_NUMBER | |
1685 | || token.type == LSTOKEN_KEYWORD) | |
94af9270 | 1686 | { |
a5b5adf5 | 1687 | gdb::unique_xmalloc_ptr<char> string = copy_token_string (token); |
40e084e1 KS |
1688 | throw_error (GENERIC_ERROR, |
1689 | _("malformed linespec error: unexpected %s, \"%s\""), | |
a5b5adf5 | 1690 | token_type_strings[token.type], string.get ()); |
40e084e1 KS |
1691 | } |
1692 | else | |
1693 | throw_error (GENERIC_ERROR, | |
1694 | _("malformed linespec error: unexpected %s"), | |
1695 | token_type_strings[token.type]); | |
1696 | } | |
1697 | ||
00e52e53 KS |
1698 | /* Throw an undefined label error. */ |
1699 | ||
1700 | static void ATTRIBUTE_NORETURN | |
1701 | undefined_label_error (const char *function, const char *label) | |
1702 | { | |
1703 | if (function != NULL) | |
1704 | throw_error (NOT_FOUND_ERROR, | |
dda83cd7 SM |
1705 | _("No label \"%s\" defined in function \"%s\"."), |
1706 | label, function); | |
00e52e53 KS |
1707 | else |
1708 | throw_error (NOT_FOUND_ERROR, | |
dda83cd7 SM |
1709 | _("No label \"%s\" defined in current function."), |
1710 | label); | |
00e52e53 KS |
1711 | } |
1712 | ||
1713 | /* Throw a source file not found error. */ | |
1714 | ||
1715 | static void ATTRIBUTE_NORETURN | |
1716 | source_file_not_found_error (const char *name) | |
1717 | { | |
1718 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), name); | |
1719 | } | |
1720 | ||
c45ec17c PA |
1721 | /* Unless at EIO, save the current stream position as completion word |
1722 | point, and consume the next token. */ | |
1723 | ||
1724 | static linespec_token | |
1725 | save_stream_and_consume_token (linespec_parser *parser) | |
1726 | { | |
1727 | if (linespec_lexer_peek_token (parser).type != LSTOKEN_EOI) | |
1728 | parser->completion_word = PARSER_STREAM (parser); | |
1729 | return linespec_lexer_consume_token (parser); | |
1730 | } | |
1731 | ||
87f0e720 | 1732 | /* See description in linespec.h. */ |
40e084e1 | 1733 | |
87f0e720 | 1734 | struct line_offset |
09cf2b22 | 1735 | linespec_parse_line_offset (const char *string) |
40e084e1 | 1736 | { |
87f0e720 | 1737 | const char *start = string; |
40e084e1 KS |
1738 | struct line_offset line_offset = {0, LINE_OFFSET_NONE}; |
1739 | ||
1740 | if (*string == '+') | |
1741 | { | |
1742 | line_offset.sign = LINE_OFFSET_PLUS; | |
1743 | ++string; | |
1744 | } | |
1745 | else if (*string == '-') | |
1746 | { | |
1747 | line_offset.sign = LINE_OFFSET_MINUS; | |
1748 | ++string; | |
1749 | } | |
1750 | ||
87f0e720 KS |
1751 | if (*string != '\0' && !isdigit (*string)) |
1752 | error (_("malformed line offset: \"%s\""), start); | |
1753 | ||
40e084e1 KS |
1754 | /* Right now, we only allow base 10 for offsets. */ |
1755 | line_offset.offset = atoi (string); | |
1756 | return line_offset; | |
1757 | } | |
1758 | ||
c45ec17c PA |
1759 | /* In completion mode, if the user is still typing the number, there's |
1760 | no possible completion to offer. But if there's already input past | |
1761 | the number, setup to expect NEXT. */ | |
1762 | ||
1763 | static void | |
1764 | set_completion_after_number (linespec_parser *parser, | |
1765 | linespec_complete_what next) | |
1766 | { | |
1767 | if (*PARSER_STREAM (parser) == ' ') | |
1768 | { | |
f1735a53 | 1769 | parser->completion_word = skip_spaces (PARSER_STREAM (parser) + 1); |
c45ec17c PA |
1770 | parser->complete_what = next; |
1771 | } | |
1772 | else | |
1773 | { | |
1774 | parser->completion_word = PARSER_STREAM (parser); | |
1775 | parser->complete_what = linespec_complete_what::NOTHING; | |
1776 | } | |
1777 | } | |
1778 | ||
40e084e1 KS |
1779 | /* Parse the basic_spec in PARSER's input. */ |
1780 | ||
1781 | static void | |
1782 | linespec_parse_basic (linespec_parser *parser) | |
1783 | { | |
a5b5adf5 | 1784 | gdb::unique_xmalloc_ptr<char> name; |
40e084e1 | 1785 | linespec_token token; |
7e41c8db KS |
1786 | std::vector<block_symbol> symbols; |
1787 | std::vector<block_symbol> *labels; | |
c2a031c5 | 1788 | std::vector<bound_minimal_symbol> minimal_symbols; |
40e084e1 KS |
1789 | |
1790 | /* Get the next token. */ | |
1791 | token = linespec_lexer_lex_one (parser); | |
1792 | ||
1793 | /* If it is EOI or KEYWORD, issue an error. */ | |
c45ec17c PA |
1794 | if (token.type == LSTOKEN_KEYWORD) |
1795 | { | |
1796 | parser->complete_what = linespec_complete_what::NOTHING; | |
1797 | unexpected_linespec_error (parser); | |
1798 | } | |
1799 | else if (token.type == LSTOKEN_EOI) | |
1800 | { | |
1801 | unexpected_linespec_error (parser); | |
1802 | } | |
40e084e1 KS |
1803 | /* If it is a LSTOKEN_NUMBER, we have an offset. */ |
1804 | else if (token.type == LSTOKEN_NUMBER) | |
1805 | { | |
c45ec17c PA |
1806 | set_completion_after_number (parser, linespec_complete_what::KEYWORD); |
1807 | ||
40e084e1 KS |
1808 | /* Record the line offset and get the next token. */ |
1809 | name = copy_token_string (token); | |
a5b5adf5 TT |
1810 | PARSER_EXPLICIT (parser)->line_offset |
1811 | = linespec_parse_line_offset (name.get ()); | |
40e084e1 KS |
1812 | |
1813 | /* Get the next token. */ | |
1814 | token = linespec_lexer_consume_token (parser); | |
1815 | ||
1816 | /* If the next token is a comma, stop parsing and return. */ | |
1817 | if (token.type == LSTOKEN_COMMA) | |
c45ec17c PA |
1818 | { |
1819 | parser->complete_what = linespec_complete_what::NOTHING; | |
1820 | return; | |
1821 | } | |
40e084e1 KS |
1822 | |
1823 | /* If the next token is anything but EOI or KEYWORD, issue | |
1824 | an error. */ | |
1825 | if (token.type != LSTOKEN_KEYWORD && token.type != LSTOKEN_EOI) | |
1826 | unexpected_linespec_error (parser); | |
1827 | } | |
1828 | ||
1829 | if (token.type == LSTOKEN_KEYWORD || token.type == LSTOKEN_EOI) | |
1830 | return; | |
1831 | ||
1832 | /* Next token must be LSTOKEN_STRING. */ | |
1833 | if (token.type != LSTOKEN_STRING) | |
c45ec17c PA |
1834 | { |
1835 | parser->complete_what = linespec_complete_what::NOTHING; | |
1836 | unexpected_linespec_error (parser); | |
1837 | } | |
40e084e1 KS |
1838 | |
1839 | /* The current token will contain the name of a function, method, | |
1840 | or label. */ | |
c45ec17c | 1841 | name = copy_token_string (token); |
c45ec17c PA |
1842 | |
1843 | if (parser->completion_tracker != NULL) | |
1844 | { | |
1845 | /* If the function name ends with a ":", then this may be an | |
1846 | incomplete "::" scope operator instead of a label separator. | |
1847 | E.g., | |
1848 | "b klass:<tab>" | |
1849 | which should expand to: | |
1850 | "b klass::method()" | |
1851 | ||
1852 | Do a tentative completion assuming the later. If we find | |
1853 | completions, advance the stream past the colon token and make | |
1854 | it part of the function name/token. */ | |
1855 | ||
1856 | if (!parser->completion_quote_char | |
1857 | && strcmp (PARSER_STREAM (parser), ":") == 0) | |
1858 | { | |
1859 | completion_tracker tmp_tracker; | |
1860 | const char *source_filename | |
1861 | = PARSER_EXPLICIT (parser)->source_filename; | |
a20714ff PA |
1862 | symbol_name_match_type match_type |
1863 | = PARSER_EXPLICIT (parser)->func_name_match_type; | |
c45ec17c PA |
1864 | |
1865 | linespec_complete_function (tmp_tracker, | |
1866 | parser->completion_word, | |
a20714ff | 1867 | match_type, |
c45ec17c PA |
1868 | source_filename); |
1869 | ||
1870 | if (tmp_tracker.have_completions ()) | |
1871 | { | |
1872 | PARSER_STREAM (parser)++; | |
1873 | LS_TOKEN_STOKEN (token).length++; | |
1874 | ||
a5b5adf5 TT |
1875 | name.reset (savestring (parser->completion_word, |
1876 | (PARSER_STREAM (parser) | |
1877 | - parser->completion_word))); | |
c45ec17c PA |
1878 | } |
1879 | } | |
1880 | ||
a5b5adf5 | 1881 | PARSER_EXPLICIT (parser)->function_name = name.release (); |
c45ec17c PA |
1882 | } |
1883 | else | |
1884 | { | |
6a307fc5 TT |
1885 | /* Try looking it up as a function/method. */ |
1886 | find_linespec_symbols (PARSER_STATE (parser), | |
a5b5adf5 | 1887 | PARSER_RESULT (parser)->file_symtabs, name.get (), |
6a307fc5 TT |
1888 | PARSER_EXPLICIT (parser)->func_name_match_type, |
1889 | &symbols, &minimal_symbols); | |
40e084e1 | 1890 | |
c2a031c5 | 1891 | if (!symbols.empty () || !minimal_symbols.empty ()) |
94af9270 | 1892 | { |
7243d011 | 1893 | PARSER_RESULT (parser)->function_symbols |
7e41c8db | 1894 | = new std::vector<block_symbol> (std::move (symbols)); |
c2a031c5 KS |
1895 | PARSER_RESULT (parser)->minimal_symbols |
1896 | = new std::vector<bound_minimal_symbol> | |
dda83cd7 | 1897 | (std::move (minimal_symbols)); |
a5b5adf5 | 1898 | PARSER_EXPLICIT (parser)->function_name = name.release (); |
40e084e1 | 1899 | } |
6a307fc5 | 1900 | else |
b4013987 | 1901 | { |
6a307fc5 TT |
1902 | /* NAME was not a function or a method. So it must be a label |
1903 | name or user specified variable like "break foo.c:$zippo". */ | |
1904 | labels = find_label_symbols (PARSER_STATE (parser), NULL, | |
a5b5adf5 | 1905 | &symbols, name.get ()); |
6a307fc5 TT |
1906 | if (labels != NULL) |
1907 | { | |
1908 | PARSER_RESULT (parser)->labels.label_symbols = labels; | |
7243d011 | 1909 | PARSER_RESULT (parser)->labels.function_symbols |
7e41c8db | 1910 | = new std::vector<block_symbol> (std::move (symbols)); |
a5b5adf5 | 1911 | PARSER_EXPLICIT (parser)->label_name = name.release (); |
6a307fc5 TT |
1912 | } |
1913 | else if (token.type == LSTOKEN_STRING | |
1914 | && *LS_TOKEN_STOKEN (token).ptr == '$') | |
1915 | { | |
1916 | /* User specified a convenience variable or history value. */ | |
1917 | PARSER_EXPLICIT (parser)->line_offset | |
a5b5adf5 | 1918 | = linespec_parse_variable (PARSER_STATE (parser), name.get ()); |
b4013987 | 1919 | |
6a307fc5 TT |
1920 | if (PARSER_EXPLICIT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN) |
1921 | { | |
1922 | /* The user-specified variable was not valid. Do not | |
1923 | throw an error here. parse_linespec will do it for us. */ | |
a5b5adf5 | 1924 | PARSER_EXPLICIT (parser)->function_name = name.release (); |
6a307fc5 TT |
1925 | return; |
1926 | } | |
6a307fc5 TT |
1927 | } |
1928 | else | |
b4013987 | 1929 | { |
6a307fc5 TT |
1930 | /* The name is also not a label. Abort parsing. Do not throw |
1931 | an error here. parse_linespec will do it for us. */ | |
1932 | ||
1933 | /* Save a copy of the name we were trying to lookup. */ | |
a5b5adf5 | 1934 | PARSER_EXPLICIT (parser)->function_name = name.release (); |
b4013987 AA |
1935 | return; |
1936 | } | |
1937 | } | |
c45ec17c PA |
1938 | } |
1939 | ||
1940 | int previous_qc = parser->completion_quote_char; | |
40e084e1 KS |
1941 | |
1942 | /* Get the next token. */ | |
1943 | token = linespec_lexer_consume_token (parser); | |
1944 | ||
c45ec17c PA |
1945 | if (token.type == LSTOKEN_EOI) |
1946 | { | |
1947 | if (previous_qc && !parser->completion_quote_char) | |
1948 | parser->complete_what = linespec_complete_what::KEYWORD; | |
1949 | } | |
1950 | else if (token.type == LSTOKEN_COLON) | |
40e084e1 KS |
1951 | { |
1952 | /* User specified a label or a lineno. */ | |
1953 | token = linespec_lexer_consume_token (parser); | |
1954 | ||
1955 | if (token.type == LSTOKEN_NUMBER) | |
1956 | { | |
1957 | /* User specified an offset. Record the line offset and | |
1958 | get the next token. */ | |
c45ec17c PA |
1959 | set_completion_after_number (parser, linespec_complete_what::KEYWORD); |
1960 | ||
40e084e1 | 1961 | name = copy_token_string (token); |
00e52e53 | 1962 | PARSER_EXPLICIT (parser)->line_offset |
a5b5adf5 | 1963 | = linespec_parse_line_offset (name.get ()); |
40e084e1 | 1964 | |
c45ec17c | 1965 | /* Get the next token. */ |
40e084e1 KS |
1966 | token = linespec_lexer_consume_token (parser); |
1967 | } | |
c45ec17c PA |
1968 | else if (token.type == LSTOKEN_EOI && parser->completion_tracker != NULL) |
1969 | { | |
1970 | parser->complete_what = linespec_complete_what::LABEL; | |
1971 | } | |
40e084e1 KS |
1972 | else if (token.type == LSTOKEN_STRING) |
1973 | { | |
c45ec17c PA |
1974 | parser->complete_what = linespec_complete_what::LABEL; |
1975 | ||
1976 | /* If we have text after the label separated by whitespace | |
1977 | (e.g., "b func():lab i<tab>"), don't consider it part of | |
1978 | the label. In completion mode that should complete to | |
1979 | "if", in normal mode, the 'i' should be treated as | |
1980 | garbage. */ | |
1981 | if (parser->completion_quote_char == '\0') | |
1982 | { | |
1983 | const char *ptr = LS_TOKEN_STOKEN (token).ptr; | |
1984 | for (size_t i = 0; i < LS_TOKEN_STOKEN (token).length; i++) | |
1985 | { | |
1986 | if (ptr[i] == ' ') | |
1987 | { | |
1988 | LS_TOKEN_STOKEN (token).length = i; | |
f1735a53 | 1989 | PARSER_STREAM (parser) = skip_spaces (ptr + i + 1); |
c45ec17c PA |
1990 | break; |
1991 | } | |
1992 | } | |
1993 | } | |
1994 | ||
1995 | if (parser->completion_tracker != NULL) | |
1996 | { | |
1997 | if (PARSER_STREAM (parser)[-1] == ' ') | |
1998 | { | |
1999 | parser->completion_word = PARSER_STREAM (parser); | |
2000 | parser->complete_what = linespec_complete_what::KEYWORD; | |
2001 | } | |
2002 | } | |
2003 | else | |
2004 | { | |
6a307fc5 TT |
2005 | /* Grab a copy of the label's name and look it up. */ |
2006 | name = copy_token_string (token); | |
6a307fc5 TT |
2007 | labels |
2008 | = find_label_symbols (PARSER_STATE (parser), | |
2009 | PARSER_RESULT (parser)->function_symbols, | |
a5b5adf5 | 2010 | &symbols, name.get ()); |
40e084e1 | 2011 | |
6a307fc5 TT |
2012 | if (labels != NULL) |
2013 | { | |
2014 | PARSER_RESULT (parser)->labels.label_symbols = labels; | |
7243d011 | 2015 | PARSER_RESULT (parser)->labels.function_symbols |
7e41c8db | 2016 | = new std::vector<block_symbol> (std::move (symbols)); |
a5b5adf5 | 2017 | PARSER_EXPLICIT (parser)->label_name = name.release (); |
6a307fc5 TT |
2018 | } |
2019 | else | |
2020 | { | |
2021 | /* We don't know what it was, but it isn't a label. */ | |
2022 | undefined_label_error | |
a5b5adf5 | 2023 | (PARSER_EXPLICIT (parser)->function_name, name.get ()); |
6a307fc5 | 2024 | } |
40e084e1 | 2025 | |
c45ec17c PA |
2026 | } |
2027 | ||
40e084e1 | 2028 | /* Check for a line offset. */ |
c45ec17c | 2029 | token = save_stream_and_consume_token (parser); |
40e084e1 KS |
2030 | if (token.type == LSTOKEN_COLON) |
2031 | { | |
2032 | /* Get the next token. */ | |
2033 | token = linespec_lexer_consume_token (parser); | |
2034 | ||
2035 | /* It must be a line offset. */ | |
2036 | if (token.type != LSTOKEN_NUMBER) | |
2037 | unexpected_linespec_error (parser); | |
2038 | ||
c6756f62 | 2039 | /* Record the line offset and get the next token. */ |
40e084e1 | 2040 | name = copy_token_string (token); |
40e084e1 | 2041 | |
00e52e53 | 2042 | PARSER_EXPLICIT (parser)->line_offset |
a5b5adf5 | 2043 | = linespec_parse_line_offset (name.get ()); |
40e084e1 KS |
2044 | |
2045 | /* Get the next token. */ | |
2046 | token = linespec_lexer_consume_token (parser); | |
94af9270 KS |
2047 | } |
2048 | } | |
40e084e1 KS |
2049 | else |
2050 | { | |
2051 | /* Trailing ':' in the input. Issue an error. */ | |
2052 | unexpected_linespec_error (parser); | |
2053 | } | |
94af9270 | 2054 | } |
40e084e1 | 2055 | } |
94af9270 | 2056 | |
40e084e1 | 2057 | /* Canonicalize the linespec contained in LS. The result is saved into |
00e52e53 KS |
2058 | STATE->canonical. This function handles both linespec and explicit |
2059 | locations. */ | |
40e084e1 KS |
2060 | |
2061 | static void | |
f00aae0f | 2062 | canonicalize_linespec (struct linespec_state *state, const linespec_p ls) |
40e084e1 | 2063 | { |
00e52e53 | 2064 | struct event_location *canon; |
67994074 | 2065 | struct explicit_location *explicit_loc; |
f00aae0f | 2066 | |
40e084e1 KS |
2067 | /* If canonicalization was not requested, no need to do anything. */ |
2068 | if (!state->canonical) | |
2069 | return; | |
2070 | ||
00e52e53 | 2071 | /* Save everything as an explicit location. */ |
8e9e35b1 TT |
2072 | state->canonical->location |
2073 | = new_explicit_location (&ls->explicit_loc); | |
2074 | canon = state->canonical->location.get (); | |
67994074 | 2075 | explicit_loc = get_explicit_location (canon); |
40e084e1 | 2076 | |
67994074 | 2077 | if (explicit_loc->label_name != NULL) |
a06efdd6 | 2078 | { |
00e52e53 | 2079 | state->canonical->special_display = 1; |
40e084e1 | 2080 | |
67994074 | 2081 | if (explicit_loc->function_name == NULL) |
40e084e1 | 2082 | { |
a06efdd6 | 2083 | /* No function was specified, so add the symbol name. */ |
7243d011 KS |
2084 | gdb_assert (!ls->labels.function_symbols->empty () |
2085 | && (ls->labels.function_symbols->size () == 1)); | |
7e41c8db | 2086 | block_symbol s = ls->labels.function_symbols->front (); |
987012b8 | 2087 | explicit_loc->function_name = xstrdup (s.symbol->natural_name ()); |
40e084e1 | 2088 | } |
a06efdd6 | 2089 | } |
40e084e1 | 2090 | |
00e52e53 KS |
2091 | /* If this location originally came from a linespec, save a string |
2092 | representation of it for display and saving to file. */ | |
2093 | if (state->is_linespec) | |
a06efdd6 | 2094 | { |
67994074 | 2095 | char *linespec = explicit_location_to_linespec (explicit_loc); |
a06efdd6 | 2096 | |
00e52e53 KS |
2097 | set_event_location_string (canon, linespec); |
2098 | xfree (linespec); | |
2099 | } | |
94af9270 | 2100 | } |
c00f8484 | 2101 | |
40e084e1 | 2102 | /* Given a line offset in LS, construct the relevant SALs. */ |
c00f8484 | 2103 | |
6c5b2ebe | 2104 | static std::vector<symtab_and_line> |
40e084e1 KS |
2105 | create_sals_line_offset (struct linespec_state *self, |
2106 | linespec_p ls) | |
c00f8484 | 2107 | { |
40e084e1 | 2108 | int use_default = 0; |
c00f8484 | 2109 | |
40e084e1 KS |
2110 | /* This is where we need to make sure we have good defaults. |
2111 | We must guarantee that this section of code is never executed | |
2e47c6ca | 2112 | when we are called with just a function name, since |
40e084e1 KS |
2113 | set_default_source_symtab_and_line uses |
2114 | select_source_symtab that calls us with such an argument. */ | |
2115 | ||
2a908241 KS |
2116 | if (ls->file_symtabs->size () == 1 |
2117 | && ls->file_symtabs->front () == nullptr) | |
3d50dd94 | 2118 | { |
40e084e1 | 2119 | set_current_program_space (self->program_space); |
c00f8484 | 2120 | |
40e084e1 KS |
2121 | /* Make sure we have at least a default source line. */ |
2122 | set_default_source_symtab_and_line (); | |
2123 | initialize_defaults (&self->default_symtab, &self->default_line); | |
4717cec4 | 2124 | *ls->file_symtabs |
bb995d00 KS |
2125 | = collect_symtabs_from_filename (self->default_symtab->filename, |
2126 | self->search_pspace); | |
40e084e1 KS |
2127 | use_default = 1; |
2128 | } | |
c00f8484 | 2129 | |
51abb421 | 2130 | symtab_and_line val; |
67994074 KS |
2131 | val.line = ls->explicit_loc.line_offset.offset; |
2132 | switch (ls->explicit_loc.line_offset.sign) | |
40e084e1 KS |
2133 | { |
2134 | case LINE_OFFSET_PLUS: | |
67994074 | 2135 | if (ls->explicit_loc.line_offset.offset == 0) |
40e084e1 KS |
2136 | val.line = 5; |
2137 | if (use_default) | |
2138 | val.line = self->default_line + val.line; | |
2139 | break; | |
2140 | ||
2141 | case LINE_OFFSET_MINUS: | |
67994074 | 2142 | if (ls->explicit_loc.line_offset.offset == 0) |
40e084e1 KS |
2143 | val.line = 15; |
2144 | if (use_default) | |
2145 | val.line = self->default_line - val.line; | |
2146 | else | |
2147 | val.line = -val.line; | |
2148 | break; | |
2149 | ||
2150 | case LINE_OFFSET_NONE: | |
2151 | break; /* No need to adjust val.line. */ | |
2152 | } | |
2153 | ||
6c5b2ebe | 2154 | std::vector<symtab_and_line> values; |
40e084e1 | 2155 | if (self->list_mode) |
6c5b2ebe | 2156 | values = decode_digits_list_mode (self, ls, val); |
40e084e1 KS |
2157 | else |
2158 | { | |
2159 | struct linetable_entry *best_entry = NULL; | |
40e084e1 KS |
2160 | int i, j; |
2161 | ||
6c5b2ebe PA |
2162 | std::vector<symtab_and_line> intermediate_results |
2163 | = decode_digits_ordinary (self, ls, val.line, &best_entry); | |
2164 | if (intermediate_results.empty () && best_entry != NULL) | |
2165 | intermediate_results = decode_digits_ordinary (self, ls, | |
2166 | best_entry->line, | |
2167 | &best_entry); | |
40e084e1 KS |
2168 | |
2169 | /* For optimized code, the compiler can scatter one source line | |
2170 | across disjoint ranges of PC values, even when no duplicate | |
2171 | functions or inline functions are involved. For example, | |
2172 | 'for (;;)' inside a non-template, non-inline, and non-ctor-or-dtor | |
2173 | function can result in two PC ranges. In this case, we don't | |
2174 | want to set a breakpoint on the first PC of each range. To filter | |
2175 | such cases, we use containing blocks -- for each PC found | |
2176 | above, we see if there are other PCs that are in the same | |
2177 | block. If yes, the other PCs are filtered out. */ | |
2178 | ||
0fc21fd8 TT |
2179 | gdb::def_vector<int> filter (intermediate_results.size ()); |
2180 | gdb::def_vector<const block *> blocks (intermediate_results.size ()); | |
40e084e1 | 2181 | |
6c5b2ebe | 2182 | for (i = 0; i < intermediate_results.size (); ++i) |
3d50dd94 | 2183 | { |
6c5b2ebe | 2184 | set_current_program_space (intermediate_results[i].pspace); |
c00f8484 | 2185 | |
40e084e1 | 2186 | filter[i] = 1; |
6c5b2ebe PA |
2187 | blocks[i] = block_for_pc_sect (intermediate_results[i].pc, |
2188 | intermediate_results[i].section); | |
3d50dd94 | 2189 | } |
c00f8484 | 2190 | |
6c5b2ebe | 2191 | for (i = 0; i < intermediate_results.size (); ++i) |
40e084e1 KS |
2192 | { |
2193 | if (blocks[i] != NULL) | |
6c5b2ebe | 2194 | for (j = i + 1; j < intermediate_results.size (); ++j) |
40e084e1 KS |
2195 | { |
2196 | if (blocks[j] == blocks[i]) | |
2197 | { | |
2198 | filter[j] = 0; | |
2199 | break; | |
2200 | } | |
2201 | } | |
2202 | } | |
c00f8484 | 2203 | |
6c5b2ebe | 2204 | for (i = 0; i < intermediate_results.size (); ++i) |
40e084e1 KS |
2205 | if (filter[i]) |
2206 | { | |
2207 | struct symbol *sym = (blocks[i] | |
2208 | ? block_containing_function (blocks[i]) | |
2209 | : NULL); | |
3d50dd94 | 2210 | |
40e084e1 | 2211 | if (self->funfirstline) |
6c5b2ebe | 2212 | skip_prologue_sal (&intermediate_results[i]); |
cd2bb709 | 2213 | intermediate_results[i].symbol = sym; |
6c5b2ebe | 2214 | add_sal_to_sals (self, &values, &intermediate_results[i], |
987012b8 | 2215 | sym ? sym->natural_name () : NULL, 0); |
40e084e1 | 2216 | } |
f17170e5 | 2217 | } |
c00f8484 | 2218 | |
6c5b2ebe | 2219 | if (values.empty ()) |
40e084e1 | 2220 | { |
67994074 | 2221 | if (ls->explicit_loc.source_filename) |
40e084e1 | 2222 | throw_error (NOT_FOUND_ERROR, _("No line %d in file \"%s\"."), |
67994074 | 2223 | val.line, ls->explicit_loc.source_filename); |
40e084e1 KS |
2224 | else |
2225 | throw_error (NOT_FOUND_ERROR, _("No line %d in the current file."), | |
2226 | val.line); | |
2227 | } | |
3d50dd94 | 2228 | |
40e084e1 | 2229 | return values; |
c00f8484 KS |
2230 | } |
2231 | ||
a06efdd6 KS |
2232 | /* Convert the given ADDRESS into SaLs. */ |
2233 | ||
6c5b2ebe | 2234 | static std::vector<symtab_and_line> |
a06efdd6 KS |
2235 | convert_address_location_to_sals (struct linespec_state *self, |
2236 | CORE_ADDR address) | |
2237 | { | |
6c5b2ebe | 2238 | symtab_and_line sal = find_pc_line (address, 0); |
a06efdd6 KS |
2239 | sal.pc = address; |
2240 | sal.section = find_pc_overlay (address); | |
2241 | sal.explicit_pc = 1; | |
cd2bb709 | 2242 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); |
6c5b2ebe PA |
2243 | |
2244 | std::vector<symtab_and_line> sals; | |
a06efdd6 KS |
2245 | add_sal_to_sals (self, &sals, &sal, core_addr_to_string (address), 1); |
2246 | ||
2247 | return sals; | |
2248 | } | |
2249 | ||
40e084e1 KS |
2250 | /* Create and return SALs from the linespec LS. */ |
2251 | ||
6c5b2ebe | 2252 | static std::vector<symtab_and_line> |
40e084e1 KS |
2253 | convert_linespec_to_sals (struct linespec_state *state, linespec_p ls) |
2254 | { | |
6c5b2ebe | 2255 | std::vector<symtab_and_line> sals; |
40e084e1 | 2256 | |
a06efdd6 | 2257 | if (ls->labels.label_symbols != NULL) |
40e084e1 KS |
2258 | { |
2259 | /* We have just a bunch of functions/methods or labels. */ | |
7e41c8db KS |
2260 | struct symtab_and_line sal; |
2261 | ||
3553eadc | 2262 | for (const auto &sym : *ls->labels.label_symbols) |
40e084e1 | 2263 | { |
7e41c8db KS |
2264 | struct program_space *pspace |
2265 | = SYMTAB_PSPACE (symbol_symtab (sym.symbol)); | |
fdbb204b | 2266 | |
7e41c8db | 2267 | if (symbol_to_sal (&sal, state->funfirstline, sym.symbol) |
fdbb204b | 2268 | && maybe_add_address (state->addr_set, pspace, sal.pc)) |
64b92e45 | 2269 | add_sal_to_sals (state, &sals, &sal, |
987012b8 | 2270 | sym.symbol->natural_name (), 0); |
40e084e1 KS |
2271 | } |
2272 | } | |
2273 | else if (ls->function_symbols != NULL || ls->minimal_symbols != NULL) | |
2274 | { | |
2275 | /* We have just a bunch of functions and/or methods. */ | |
40e084e1 KS |
2276 | if (ls->function_symbols != NULL) |
2277 | { | |
2278 | /* Sort symbols so that symbols with the same program space are next | |
2279 | to each other. */ | |
7243d011 KS |
2280 | std::sort (ls->function_symbols->begin (), |
2281 | ls->function_symbols->end (), | |
4dedf84d | 2282 | compare_symbols); |
40e084e1 | 2283 | |
7243d011 | 2284 | for (const auto &sym : *ls->function_symbols) |
40e084e1 | 2285 | { |
7e41c8db KS |
2286 | program_space *pspace |
2287 | = SYMTAB_PSPACE (symbol_symtab (sym.symbol)); | |
40e084e1 | 2288 | set_current_program_space (pspace); |
76af0f26 PA |
2289 | |
2290 | /* Don't skip to the first line of the function if we | |
2291 | had found an ifunc minimal symbol for this function, | |
2292 | because that means that this function is an ifunc | |
2293 | resolver with the same name as the ifunc itself. */ | |
2294 | bool found_ifunc = false; | |
2295 | ||
2296 | if (state->funfirstline | |
2297 | && ls->minimal_symbols != NULL | |
7e41c8db | 2298 | && SYMBOL_CLASS (sym.symbol) == LOC_BLOCK) |
76af0f26 PA |
2299 | { |
2300 | const CORE_ADDR addr | |
7e41c8db | 2301 | = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym.symbol)); |
76af0f26 | 2302 | |
c2a031c5 | 2303 | for (const auto &elem : *ls->minimal_symbols) |
76af0f26 | 2304 | { |
c2a031c5 KS |
2305 | if (MSYMBOL_TYPE (elem.minsym) == mst_text_gnu_ifunc |
2306 | || MSYMBOL_TYPE (elem.minsym) == mst_data_gnu_ifunc) | |
76af0f26 | 2307 | { |
c2a031c5 KS |
2308 | CORE_ADDR msym_addr = BMSYMBOL_VALUE_ADDRESS (elem); |
2309 | if (MSYMBOL_TYPE (elem.minsym) == mst_data_gnu_ifunc) | |
f50776aa PA |
2310 | { |
2311 | struct gdbarch *gdbarch | |
08feed99 | 2312 | = elem.objfile->arch (); |
f50776aa PA |
2313 | msym_addr |
2314 | = (gdbarch_convert_from_func_ptr_addr | |
2315 | (gdbarch, | |
2316 | msym_addr, | |
8b88a78e | 2317 | current_top_target ())); |
f50776aa PA |
2318 | } |
2319 | ||
2320 | if (msym_addr == addr) | |
2321 | { | |
2322 | found_ifunc = true; | |
2323 | break; | |
2324 | } | |
76af0f26 PA |
2325 | } |
2326 | } | |
2327 | } | |
2328 | ||
2329 | if (!found_ifunc) | |
2330 | { | |
2331 | symtab_and_line sal; | |
7e41c8db | 2332 | if (symbol_to_sal (&sal, state->funfirstline, sym.symbol) |
76af0f26 PA |
2333 | && maybe_add_address (state->addr_set, pspace, sal.pc)) |
2334 | add_sal_to_sals (state, &sals, &sal, | |
987012b8 | 2335 | sym.symbol->natural_name (), 0); |
76af0f26 | 2336 | } |
40e084e1 KS |
2337 | } |
2338 | } | |
2339 | ||
2340 | if (ls->minimal_symbols != NULL) | |
2341 | { | |
76af0f26 | 2342 | /* Sort minimal symbols by program space, too */ |
c2a031c5 KS |
2343 | std::sort (ls->minimal_symbols->begin (), |
2344 | ls->minimal_symbols->end (), | |
2345 | compare_msymbols); | |
40e084e1 | 2346 | |
c2a031c5 | 2347 | for (const auto &elem : *ls->minimal_symbols) |
40e084e1 | 2348 | { |
c2a031c5 | 2349 | program_space *pspace = elem.objfile->pspace; |
40e084e1 | 2350 | set_current_program_space (pspace); |
c2a031c5 | 2351 | minsym_found (state, elem.objfile, elem.minsym, &sals); |
40e084e1 KS |
2352 | } |
2353 | } | |
2354 | } | |
67994074 | 2355 | else if (ls->explicit_loc.line_offset.sign != LINE_OFFSET_UNKNOWN) |
40e084e1 KS |
2356 | { |
2357 | /* Only an offset was specified. */ | |
2358 | sals = create_sals_line_offset (state, ls); | |
2359 | ||
2360 | /* Make sure we have a filename for canonicalization. */ | |
67994074 | 2361 | if (ls->explicit_loc.source_filename == NULL) |
05cba821 JK |
2362 | { |
2363 | const char *fullname = symtab_to_fullname (state->default_symtab); | |
2364 | ||
e93ba630 JK |
2365 | /* It may be more appropriate to keep DEFAULT_SYMTAB in its symtab |
2366 | form so that displaying SOURCE_FILENAME can follow the current | |
2367 | FILENAME_DISPLAY_STRING setting. But as it is used only rarely | |
2368 | it has been kept for code simplicity only in absolute form. */ | |
67994074 | 2369 | ls->explicit_loc.source_filename = xstrdup (fullname); |
05cba821 | 2370 | } |
40e084e1 KS |
2371 | } |
2372 | else | |
2373 | { | |
2374 | /* We haven't found any results... */ | |
2375 | return sals; | |
2376 | } | |
2377 | ||
2378 | canonicalize_linespec (state, ls); | |
2379 | ||
6c5b2ebe | 2380 | if (!sals.empty () && state->canonical != NULL) |
40e084e1 KS |
2381 | state->canonical->pre_expanded = 1; |
2382 | ||
2383 | return sals; | |
2384 | } | |
50641945 | 2385 | |
a2459270 PA |
2386 | /* Build RESULT from the explicit location components SOURCE_FILENAME, |
2387 | FUNCTION_NAME, LABEL_NAME and LINE_OFFSET. */ | |
00e52e53 | 2388 | |
a2459270 PA |
2389 | static void |
2390 | convert_explicit_location_to_linespec (struct linespec_state *self, | |
2391 | linespec_p result, | |
2392 | const char *source_filename, | |
2393 | const char *function_name, | |
a20714ff | 2394 | symbol_name_match_type fname_match_type, |
a2459270 PA |
2395 | const char *label_name, |
2396 | struct line_offset line_offset) | |
00e52e53 | 2397 | { |
7e41c8db KS |
2398 | std::vector<block_symbol> symbols; |
2399 | std::vector<block_symbol> *labels; | |
c2a031c5 | 2400 | std::vector<bound_minimal_symbol> minimal_symbols; |
00e52e53 | 2401 | |
a20714ff PA |
2402 | result->explicit_loc.func_name_match_type = fname_match_type; |
2403 | ||
a2459270 | 2404 | if (source_filename != NULL) |
00e52e53 | 2405 | { |
a70b8144 | 2406 | try |
00e52e53 | 2407 | { |
4717cec4 SM |
2408 | *result->file_symtabs |
2409 | = symtabs_from_filename (source_filename, self->search_pspace); | |
00e52e53 | 2410 | } |
230d2906 | 2411 | catch (const gdb_exception_error &except) |
00e52e53 | 2412 | { |
a2459270 | 2413 | source_file_not_found_error (source_filename); |
00e52e53 | 2414 | } |
a2459270 | 2415 | result->explicit_loc.source_filename = xstrdup (source_filename); |
00e52e53 KS |
2416 | } |
2417 | else | |
2418 | { | |
2419 | /* A NULL entry means to use the default symtab. */ | |
2a908241 | 2420 | result->file_symtabs->push_back (nullptr); |
00e52e53 KS |
2421 | } |
2422 | ||
a2459270 | 2423 | if (function_name != NULL) |
00e52e53 KS |
2424 | { |
2425 | find_linespec_symbols (self, result->file_symtabs, | |
a20714ff PA |
2426 | function_name, fname_match_type, |
2427 | &symbols, &minimal_symbols); | |
00e52e53 | 2428 | |
c2a031c5 | 2429 | if (symbols.empty () && minimal_symbols.empty ()) |
a2459270 | 2430 | symbol_not_found_error (function_name, |
67994074 | 2431 | result->explicit_loc.source_filename); |
00e52e53 | 2432 | |
a2459270 | 2433 | result->explicit_loc.function_name = xstrdup (function_name); |
7243d011 | 2434 | result->function_symbols |
7e41c8db | 2435 | = new std::vector<block_symbol> (std::move (symbols)); |
c2a031c5 KS |
2436 | result->minimal_symbols |
2437 | = new std::vector<bound_minimal_symbol> (std::move (minimal_symbols)); | |
00e52e53 KS |
2438 | } |
2439 | ||
a2459270 | 2440 | if (label_name != NULL) |
00e52e53 | 2441 | { |
00e52e53 | 2442 | labels = find_label_symbols (self, result->function_symbols, |
a2459270 | 2443 | &symbols, label_name); |
00e52e53 KS |
2444 | |
2445 | if (labels == NULL) | |
67994074 | 2446 | undefined_label_error (result->explicit_loc.function_name, |
a2459270 | 2447 | label_name); |
00e52e53 | 2448 | |
a2459270 | 2449 | result->explicit_loc.label_name = xstrdup (label_name); |
00e52e53 | 2450 | result->labels.label_symbols = labels; |
7243d011 | 2451 | result->labels.function_symbols |
7e41c8db | 2452 | = new std::vector<block_symbol> (std::move (symbols)); |
00e52e53 KS |
2453 | } |
2454 | ||
a2459270 PA |
2455 | if (line_offset.sign != LINE_OFFSET_UNKNOWN) |
2456 | result->explicit_loc.line_offset = line_offset; | |
2457 | } | |
00e52e53 | 2458 | |
a2459270 PA |
2459 | /* Convert the explicit location EXPLICIT_LOC into SaLs. */ |
2460 | ||
6c5b2ebe | 2461 | static std::vector<symtab_and_line> |
a2459270 PA |
2462 | convert_explicit_location_to_sals (struct linespec_state *self, |
2463 | linespec_p result, | |
2464 | const struct explicit_location *explicit_loc) | |
2465 | { | |
2466 | convert_explicit_location_to_linespec (self, result, | |
2467 | explicit_loc->source_filename, | |
2468 | explicit_loc->function_name, | |
a20714ff | 2469 | explicit_loc->func_name_match_type, |
a2459270 PA |
2470 | explicit_loc->label_name, |
2471 | explicit_loc->line_offset); | |
2472 | return convert_linespec_to_sals (self, result); | |
00e52e53 KS |
2473 | } |
2474 | ||
40e084e1 | 2475 | /* Parse a string that specifies a linespec. |
50641945 | 2476 | |
40e084e1 | 2477 | The basic grammar of linespecs: |
50641945 | 2478 | |
a06efdd6 | 2479 | linespec -> var_spec | basic_spec |
40e084e1 | 2480 | var_spec -> '$' (STRING | NUMBER) |
50641945 | 2481 | |
40e084e1 KS |
2482 | basic_spec -> file_offset_spec | function_spec | label_spec |
2483 | file_offset_spec -> opt_file_spec offset_spec | |
2484 | function_spec -> opt_file_spec function_name_spec opt_label_spec | |
2485 | label_spec -> label_name_spec | |
50641945 | 2486 | |
40e084e1 KS |
2487 | opt_file_spec -> "" | file_name_spec ':' |
2488 | opt_label_spec -> "" | ':' label_name_spec | |
2489 | ||
2490 | file_name_spec -> STRING | |
2491 | function_name_spec -> STRING | |
2492 | label_name_spec -> STRING | |
2493 | function_name_spec -> STRING | |
2494 | offset_spec -> NUMBER | |
dda83cd7 | 2495 | -> '+' NUMBER |
40e084e1 KS |
2496 | -> '-' NUMBER |
2497 | ||
2498 | This may all be followed by several keywords such as "if EXPR", | |
2499 | which we ignore. | |
2500 | ||
2501 | A comma will terminate parsing. | |
2502 | ||
2503 | The function may be an undebuggable function found in minimal symbol table. | |
50641945 FN |
2504 | |
2505 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2506 | of real code inside a function when a function is specified, and it is | |
2507 | not OK to specify a variable or type to get its line number. | |
2508 | ||
2509 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
2510 | It defaults to current_source_symtab. | |
2511 | DEFAULT_LINE specifies the line number to use for relative | |
2512 | line numbers (that start with signs). Defaults to current_source_line. | |
2513 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
1777feb0 | 2514 | line specs there if necessary. Currently overloaded member functions and |
50641945 | 2515 | line numbers or static functions without a filename yield a canonical |
1777feb0 | 2516 | line spec. The array and the line spec strings are allocated on the heap, |
50641945 FN |
2517 | it is the callers responsibility to free them. |
2518 | ||
2519 | Note that it is possible to return zero for the symtab | |
2520 | if no file is validly specified. Callers must check that. | |
58438ac1 | 2521 | Also, the line number returned may be invalid. */ |
50641945 | 2522 | |
a20714ff PA |
2523 | /* Parse the linespec in ARG. MATCH_TYPE indicates how function names |
2524 | should be matched. */ | |
50641945 | 2525 | |
6c5b2ebe | 2526 | static std::vector<symtab_and_line> |
a20714ff PA |
2527 | parse_linespec (linespec_parser *parser, const char *arg, |
2528 | symbol_name_match_type match_type) | |
50641945 | 2529 | { |
40e084e1 | 2530 | linespec_token token; |
cc06b668 | 2531 | struct gdb_exception file_exception; |
40e084e1 KS |
2532 | |
2533 | /* A special case to start. It has become quite popular for | |
2534 | IDEs to work around bugs in the previous parser by quoting | |
2535 | the entire linespec, so we attempt to deal with this nicely. */ | |
2536 | parser->is_quote_enclosed = 0; | |
c45ec17c PA |
2537 | if (parser->completion_tracker == NULL |
2538 | && !is_ada_operator (arg) | |
f00aae0f | 2539 | && strchr (linespec_quote_characters, *arg) != NULL) |
40e084e1 KS |
2540 | { |
2541 | const char *end; | |
9ef07c8c | 2542 | |
f00aae0f | 2543 | end = skip_quote_char (arg + 1, *arg); |
40e084e1 | 2544 | if (end != NULL && is_closing_quote_enclosed (end)) |
136e1c30 | 2545 | { |
f00aae0f | 2546 | /* Here's the special case. Skip ARG past the initial |
40e084e1 | 2547 | quote. */ |
f00aae0f | 2548 | ++arg; |
40e084e1 | 2549 | parser->is_quote_enclosed = 1; |
136e1c30 DE |
2550 | } |
2551 | } | |
e8eb7bc5 | 2552 | |
f00aae0f KS |
2553 | parser->lexer.saved_arg = arg; |
2554 | parser->lexer.stream = arg; | |
c45ec17c PA |
2555 | parser->completion_word = arg; |
2556 | parser->complete_what = linespec_complete_what::FUNCTION; | |
a20714ff | 2557 | PARSER_EXPLICIT (parser)->func_name_match_type = match_type; |
d2630e69 | 2558 | |
40e084e1 KS |
2559 | /* Initialize the default symtab and line offset. */ |
2560 | initialize_defaults (&PARSER_STATE (parser)->default_symtab, | |
2561 | &PARSER_STATE (parser)->default_line); | |
d2630e69 | 2562 | |
40e084e1 | 2563 | /* Objective-C shortcut. */ |
c45ec17c PA |
2564 | if (parser->completion_tracker == NULL) |
2565 | { | |
6c5b2ebe PA |
2566 | std::vector<symtab_and_line> values |
2567 | = decode_objc (PARSER_STATE (parser), PARSER_RESULT (parser), arg); | |
2568 | if (!values.empty ()) | |
c45ec17c PA |
2569 | return values; |
2570 | } | |
2571 | else | |
2572 | { | |
2573 | /* "-"/"+" is either an objc selector, or a number. There's | |
2574 | nothing to complete the latter to, so just let the caller | |
2575 | complete on functions, which finds objc selectors, if there's | |
2576 | any. */ | |
2577 | if ((arg[0] == '-' || arg[0] == '+') && arg[1] == '\0') | |
2578 | return {}; | |
2579 | } | |
e0881a8e | 2580 | |
40e084e1 | 2581 | /* Start parsing. */ |
d2630e69 | 2582 | |
40e084e1 | 2583 | /* Get the first token. */ |
c45ec17c | 2584 | token = linespec_lexer_consume_token (parser); |
50641945 | 2585 | |
40e084e1 | 2586 | /* It must be either LSTOKEN_STRING or LSTOKEN_NUMBER. */ |
a06efdd6 | 2587 | if (token.type == LSTOKEN_STRING && *LS_TOKEN_STOKEN (token).ptr == '$') |
40e084e1 | 2588 | { |
40e084e1 | 2589 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
c45ec17c | 2590 | if (parser->completion_tracker == NULL) |
2a908241 | 2591 | PARSER_RESULT (parser)->file_symtabs->push_back (nullptr); |
dcf9f4ab | 2592 | |
40e084e1 | 2593 | /* User specified a convenience variable or history value. */ |
a5b5adf5 | 2594 | gdb::unique_xmalloc_ptr<char> var = copy_token_string (token); |
00e52e53 | 2595 | PARSER_EXPLICIT (parser)->line_offset |
a5b5adf5 | 2596 | = linespec_parse_variable (PARSER_STATE (parser), var.get ()); |
f8eba3c6 | 2597 | |
40e084e1 KS |
2598 | /* If a line_offset wasn't found (VAR is the name of a user |
2599 | variable/function), then skip to normal symbol processing. */ | |
00e52e53 | 2600 | if (PARSER_EXPLICIT (parser)->line_offset.sign != LINE_OFFSET_UNKNOWN) |
40e084e1 | 2601 | { |
40e084e1 KS |
2602 | /* Consume this token. */ |
2603 | linespec_lexer_consume_token (parser); | |
dcf9f4ab | 2604 | |
40e084e1 | 2605 | goto convert_to_sals; |
50641945 | 2606 | } |
40e084e1 | 2607 | } |
c45ec17c PA |
2608 | else if (token.type == LSTOKEN_EOI && parser->completion_tracker != NULL) |
2609 | { | |
2610 | /* Let the default linespec_complete_what::FUNCTION kick in. */ | |
2611 | unexpected_linespec_error (parser); | |
2612 | } | |
40e084e1 | 2613 | else if (token.type != LSTOKEN_STRING && token.type != LSTOKEN_NUMBER) |
c45ec17c PA |
2614 | { |
2615 | parser->complete_what = linespec_complete_what::NOTHING; | |
2616 | unexpected_linespec_error (parser); | |
2617 | } | |
50641945 | 2618 | |
40e084e1 KS |
2619 | /* Shortcut: If the next token is not LSTOKEN_COLON, we know that |
2620 | this token cannot represent a filename. */ | |
2621 | token = linespec_lexer_peek_token (parser); | |
0e0b460e | 2622 | |
40e084e1 | 2623 | if (token.type == LSTOKEN_COLON) |
0e0b460e | 2624 | { |
40e084e1 KS |
2625 | /* Get the current token again and extract the filename. */ |
2626 | token = linespec_lexer_lex_one (parser); | |
a5b5adf5 | 2627 | gdb::unique_xmalloc_ptr<char> user_filename = copy_token_string (token); |
50641945 | 2628 | |
40e084e1 | 2629 | /* Check if the input is a filename. */ |
a70b8144 | 2630 | try |
40e084e1 | 2631 | { |
4717cec4 | 2632 | *PARSER_RESULT (parser)->file_symtabs |
a5b5adf5 | 2633 | = symtabs_from_filename (user_filename.get (), |
c2f4122d | 2634 | PARSER_STATE (parser)->search_pspace); |
40e084e1 | 2635 | } |
94aeb44b | 2636 | catch (gdb_exception_error &ex) |
7556d4a4 | 2637 | { |
94aeb44b | 2638 | file_exception = std::move (ex); |
7556d4a4 | 2639 | } |
50641945 | 2640 | |
40e084e1 KS |
2641 | if (file_exception.reason >= 0) |
2642 | { | |
2643 | /* Symtabs were found for the file. Record the filename. */ | |
a5b5adf5 | 2644 | PARSER_EXPLICIT (parser)->source_filename = user_filename.release (); |
f8eba3c6 | 2645 | |
40e084e1 KS |
2646 | /* Get the next token. */ |
2647 | token = linespec_lexer_consume_token (parser); | |
50641945 | 2648 | |
40e084e1 KS |
2649 | /* This is LSTOKEN_COLON; consume it. */ |
2650 | linespec_lexer_consume_token (parser); | |
2651 | } | |
2652 | else | |
2653 | { | |
40e084e1 | 2654 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
2a908241 | 2655 | PARSER_RESULT (parser)->file_symtabs->push_back (nullptr); |
40e084e1 | 2656 | } |
50641945 | 2657 | } |
40e084e1 | 2658 | /* If the next token is not EOI, KEYWORD, or COMMA, issue an error. */ |
c45ec17c PA |
2659 | else if (parser->completion_tracker == NULL |
2660 | && (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD | |
2661 | && token.type != LSTOKEN_COMMA)) | |
d2630e69 | 2662 | { |
40e084e1 KS |
2663 | /* TOKEN is the _next_ token, not the one currently in the parser. |
2664 | Consuming the token will give the correct error message. */ | |
2665 | linespec_lexer_consume_token (parser); | |
2666 | unexpected_linespec_error (parser); | |
d2630e69 | 2667 | } |
50641945 FN |
2668 | else |
2669 | { | |
40e084e1 | 2670 | /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */ |
2a908241 | 2671 | PARSER_RESULT (parser)->file_symtabs->push_back (nullptr); |
50641945 | 2672 | } |
50641945 | 2673 | |
40e084e1 KS |
2674 | /* Parse the rest of the linespec. */ |
2675 | linespec_parse_basic (parser); | |
50641945 | 2676 | |
c45ec17c PA |
2677 | if (parser->completion_tracker == NULL |
2678 | && PARSER_RESULT (parser)->function_symbols == NULL | |
40e084e1 | 2679 | && PARSER_RESULT (parser)->labels.label_symbols == NULL |
00e52e53 | 2680 | && PARSER_EXPLICIT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN |
40e084e1 | 2681 | && PARSER_RESULT (parser)->minimal_symbols == NULL) |
f8eba3c6 | 2682 | { |
40e084e1 KS |
2683 | /* The linespec didn't parse. Re-throw the file exception if |
2684 | there was one. */ | |
2685 | if (file_exception.reason < 0) | |
94aeb44b | 2686 | throw_exception (std::move (file_exception)); |
0f5238ed | 2687 | |
40e084e1 | 2688 | /* Otherwise, the symbol is not found. */ |
00e52e53 KS |
2689 | symbol_not_found_error (PARSER_EXPLICIT (parser)->function_name, |
2690 | PARSER_EXPLICIT (parser)->source_filename); | |
0f5238ed TT |
2691 | } |
2692 | ||
40e084e1 | 2693 | convert_to_sals: |
9ef07c8c | 2694 | |
40e084e1 KS |
2695 | /* Get the last token and record how much of the input was parsed, |
2696 | if necessary. */ | |
2697 | token = linespec_lexer_lex_one (parser); | |
2698 | if (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD) | |
c45ec17c PA |
2699 | unexpected_linespec_error (parser); |
2700 | else if (token.type == LSTOKEN_KEYWORD) | |
2701 | { | |
2702 | /* Setup the completion word past the keyword. Lexing never | |
2703 | advances past a keyword automatically, so skip it | |
2704 | manually. */ | |
2705 | parser->completion_word | |
f1735a53 | 2706 | = skip_spaces (skip_to_space (PARSER_STREAM (parser))); |
c45ec17c PA |
2707 | parser->complete_what = linespec_complete_what::EXPRESSION; |
2708 | } | |
50641945 | 2709 | |
40e084e1 | 2710 | /* Convert the data in PARSER_RESULT to SALs. */ |
c45ec17c | 2711 | if (parser->completion_tracker == NULL) |
6c5b2ebe PA |
2712 | return convert_linespec_to_sals (PARSER_STATE (parser), |
2713 | PARSER_RESULT (parser)); | |
f8eba3c6 | 2714 | |
6c5b2ebe | 2715 | return {}; |
413dad4d | 2716 | } |
50641945 | 2717 | |
40e084e1 | 2718 | |
f8eba3c6 | 2719 | /* A constructor for linespec_state. */ |
44fe14ab | 2720 | |
f8eba3c6 TT |
2721 | static void |
2722 | linespec_state_constructor (struct linespec_state *self, | |
40e084e1 | 2723 | int flags, const struct language_defn *language, |
c2f4122d | 2724 | struct program_space *search_pspace, |
f8eba3c6 TT |
2725 | struct symtab *default_symtab, |
2726 | int default_line, | |
2727 | struct linespec_result *canonical) | |
2728 | { | |
2729 | memset (self, 0, sizeof (*self)); | |
40e084e1 | 2730 | self->language = language; |
f8eba3c6 TT |
2731 | self->funfirstline = (flags & DECODE_LINE_FUNFIRSTLINE) ? 1 : 0; |
2732 | self->list_mode = (flags & DECODE_LINE_LIST_MODE) ? 1 : 0; | |
c2f4122d | 2733 | self->search_pspace = search_pspace; |
f8eba3c6 TT |
2734 | self->default_symtab = default_symtab; |
2735 | self->default_line = default_line; | |
2736 | self->canonical = canonical; | |
2737 | self->program_space = current_program_space; | |
2738 | self->addr_set = htab_create_alloc (10, hash_address_entry, eq_address_entry, | |
2739 | xfree, xcalloc, xfree); | |
00e52e53 | 2740 | self->is_linespec = 0; |
f8eba3c6 | 2741 | } |
44fe14ab | 2742 | |
40e084e1 | 2743 | /* Initialize a new linespec parser. */ |
44fe14ab | 2744 | |
3a6ae42d TT |
2745 | linespec_parser::linespec_parser (int flags, |
2746 | const struct language_defn *language, | |
2747 | struct program_space *search_pspace, | |
2748 | struct symtab *default_symtab, | |
2749 | int default_line, | |
2750 | struct linespec_result *canonical) | |
2751 | { | |
2752 | lexer.current.type = LSTOKEN_CONSUMED; | |
2753 | PARSER_RESULT (this)->file_symtabs = new std::vector<symtab *> (); | |
2754 | PARSER_EXPLICIT (this)->func_name_match_type | |
a20714ff | 2755 | = symbol_name_match_type::WILD; |
3a6ae42d TT |
2756 | PARSER_EXPLICIT (this)->line_offset.sign = LINE_OFFSET_UNKNOWN; |
2757 | linespec_state_constructor (PARSER_STATE (this), flags, language, | |
c2f4122d | 2758 | search_pspace, |
40e084e1 KS |
2759 | default_symtab, default_line, canonical); |
2760 | } | |
2761 | ||
2762 | /* A destructor for linespec_state. */ | |
44fe14ab | 2763 | |
40e084e1 KS |
2764 | static void |
2765 | linespec_state_destructor (struct linespec_state *self) | |
2766 | { | |
f8eba3c6 | 2767 | htab_delete (self->addr_set); |
1055a3b4 | 2768 | xfree (self->canonical_names); |
f8eba3c6 | 2769 | } |
44fe14ab | 2770 | |
40e084e1 KS |
2771 | /* Delete a linespec parser. */ |
2772 | ||
3a6ae42d | 2773 | linespec_parser::~linespec_parser () |
40e084e1 | 2774 | { |
3a6ae42d TT |
2775 | xfree (PARSER_EXPLICIT (this)->source_filename); |
2776 | xfree (PARSER_EXPLICIT (this)->label_name); | |
2777 | xfree (PARSER_EXPLICIT (this)->function_name); | |
40e084e1 | 2778 | |
3a6ae42d TT |
2779 | delete PARSER_RESULT (this)->file_symtabs; |
2780 | delete PARSER_RESULT (this)->function_symbols; | |
2781 | delete PARSER_RESULT (this)->minimal_symbols; | |
2782 | delete PARSER_RESULT (this)->labels.label_symbols; | |
2783 | delete PARSER_RESULT (this)->labels.function_symbols; | |
40e084e1 | 2784 | |
3a6ae42d | 2785 | linespec_state_destructor (PARSER_STATE (this)); |
40e084e1 KS |
2786 | } |
2787 | ||
c7c1b3e9 KS |
2788 | /* See description in linespec.h. */ |
2789 | ||
2790 | void | |
f2fc3015 | 2791 | linespec_lex_to_end (const char **stringp) |
c7c1b3e9 | 2792 | { |
c7c1b3e9 | 2793 | linespec_token token; |
c7c1b3e9 KS |
2794 | const char *orig; |
2795 | ||
2796 | if (stringp == NULL || *stringp == NULL) | |
2797 | return; | |
2798 | ||
3a6ae42d | 2799 | linespec_parser parser (0, current_language, NULL, NULL, 0, NULL); |
c7c1b3e9 KS |
2800 | parser.lexer.saved_arg = *stringp; |
2801 | PARSER_STREAM (&parser) = orig = *stringp; | |
2802 | ||
2803 | do | |
2804 | { | |
2805 | /* Stop before any comma tokens; we need it to keep it | |
2806 | as the next token in the string. */ | |
2807 | token = linespec_lexer_peek_token (&parser); | |
2808 | if (token.type == LSTOKEN_COMMA) | |
2809 | break; | |
c7c1b3e9 KS |
2810 | token = linespec_lexer_consume_token (&parser); |
2811 | } | |
2812 | while (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD); | |
2813 | ||
2814 | *stringp += PARSER_STREAM (&parser) - orig; | |
c7c1b3e9 KS |
2815 | } |
2816 | ||
c6756f62 PA |
2817 | /* See linespec.h. */ |
2818 | ||
2819 | void | |
2820 | linespec_complete_function (completion_tracker &tracker, | |
2821 | const char *function, | |
a20714ff | 2822 | symbol_name_match_type func_match_type, |
c6756f62 PA |
2823 | const char *source_filename) |
2824 | { | |
2825 | complete_symbol_mode mode = complete_symbol_mode::LINESPEC; | |
2826 | ||
2827 | if (source_filename != NULL) | |
2828 | { | |
b5ec771e PA |
2829 | collect_file_symbol_completion_matches (tracker, mode, func_match_type, |
2830 | function, function, source_filename); | |
c6756f62 PA |
2831 | } |
2832 | else | |
b5ec771e PA |
2833 | { |
2834 | collect_symbol_completion_matches (tracker, mode, func_match_type, | |
2835 | function, function); | |
2836 | ||
2837 | } | |
c6756f62 PA |
2838 | } |
2839 | ||
c45ec17c PA |
2840 | /* Helper for complete_linespec to simplify it. SOURCE_FILENAME is |
2841 | only meaningful if COMPONENT is FUNCTION. */ | |
2842 | ||
2843 | static void | |
2844 | complete_linespec_component (linespec_parser *parser, | |
2845 | completion_tracker &tracker, | |
2846 | const char *text, | |
2847 | linespec_complete_what component, | |
2848 | const char *source_filename) | |
2849 | { | |
2850 | if (component == linespec_complete_what::KEYWORD) | |
2851 | { | |
2852 | complete_on_enum (tracker, linespec_keywords, text, text); | |
2853 | } | |
2854 | else if (component == linespec_complete_what::EXPRESSION) | |
2855 | { | |
2856 | const char *word | |
2857 | = advance_to_expression_complete_word_point (tracker, text); | |
2858 | complete_expression (tracker, text, word); | |
2859 | } | |
2860 | else if (component == linespec_complete_what::FUNCTION) | |
2861 | { | |
2862 | completion_list fn_list; | |
2863 | ||
a20714ff PA |
2864 | symbol_name_match_type match_type |
2865 | = PARSER_EXPLICIT (parser)->func_name_match_type; | |
2866 | linespec_complete_function (tracker, text, match_type, source_filename); | |
c45ec17c PA |
2867 | if (source_filename == NULL) |
2868 | { | |
2869 | /* Haven't seen a source component, like in "b | |
2870 | file.c:function[TAB]". Maybe this wasn't a function, but | |
2871 | a filename instead, like "b file.[TAB]". */ | |
2872 | fn_list = complete_source_filenames (text); | |
2873 | } | |
2874 | ||
2875 | /* If we only have a single filename completion, append a ':' for | |
2876 | the user, since that's the only thing that can usefully follow | |
2877 | the filename. */ | |
2878 | if (fn_list.size () == 1 && !tracker.have_completions ()) | |
2879 | { | |
2880 | char *fn = fn_list[0].release (); | |
2881 | ||
2882 | /* If we also need to append a quote char, it needs to be | |
2883 | appended before the ':'. Append it now, and make ':' the | |
2884 | new "quote" char. */ | |
2885 | if (tracker.quote_char ()) | |
2886 | { | |
896a7aa6 | 2887 | char quote_char_str[2] = { (char) tracker.quote_char () }; |
c45ec17c PA |
2888 | |
2889 | fn = reconcat (fn, fn, quote_char_str, (char *) NULL); | |
2890 | tracker.set_quote_char (':'); | |
2891 | } | |
2892 | else | |
2893 | fn = reconcat (fn, fn, ":", (char *) NULL); | |
2894 | fn_list[0].reset (fn); | |
2895 | ||
2896 | /* Tell readline to skip appending a space. */ | |
2897 | tracker.set_suppress_append_ws (true); | |
2898 | } | |
2899 | tracker.add_completions (std::move (fn_list)); | |
2900 | } | |
2901 | } | |
2902 | ||
a2459270 PA |
2903 | /* Helper for linespec_complete_label. Find labels that match |
2904 | LABEL_NAME in the function symbols listed in the PARSER, and add | |
2905 | them to the tracker. */ | |
2906 | ||
2907 | static void | |
2908 | complete_label (completion_tracker &tracker, | |
2909 | linespec_parser *parser, | |
2910 | const char *label_name) | |
2911 | { | |
7e41c8db KS |
2912 | std::vector<block_symbol> label_function_symbols; |
2913 | std::vector<block_symbol> *labels | |
a2459270 PA |
2914 | = find_label_symbols (PARSER_STATE (parser), |
2915 | PARSER_RESULT (parser)->function_symbols, | |
2916 | &label_function_symbols, | |
2917 | label_name, true); | |
2918 | ||
3553eadc | 2919 | if (labels != nullptr) |
a2459270 | 2920 | { |
3553eadc KS |
2921 | for (const auto &label : *labels) |
2922 | { | |
987012b8 | 2923 | char *match = xstrdup (label.symbol->search_name ()); |
3553eadc KS |
2924 | tracker.add_completion (gdb::unique_xmalloc_ptr<char> (match)); |
2925 | } | |
2926 | delete labels; | |
a2459270 | 2927 | } |
a2459270 PA |
2928 | } |
2929 | ||
2930 | /* See linespec.h. */ | |
2931 | ||
2932 | void | |
2933 | linespec_complete_label (completion_tracker &tracker, | |
2934 | const struct language_defn *language, | |
2935 | const char *source_filename, | |
2936 | const char *function_name, | |
a20714ff | 2937 | symbol_name_match_type func_name_match_type, |
a2459270 PA |
2938 | const char *label_name) |
2939 | { | |
3a6ae42d | 2940 | linespec_parser parser (0, language, NULL, NULL, 0, NULL); |
a2459270 PA |
2941 | |
2942 | line_offset unknown_offset = { 0, LINE_OFFSET_UNKNOWN }; | |
2943 | ||
a70b8144 | 2944 | try |
a2459270 PA |
2945 | { |
2946 | convert_explicit_location_to_linespec (PARSER_STATE (&parser), | |
2947 | PARSER_RESULT (&parser), | |
2948 | source_filename, | |
2949 | function_name, | |
a20714ff | 2950 | func_name_match_type, |
a2459270 PA |
2951 | NULL, unknown_offset); |
2952 | } | |
230d2906 | 2953 | catch (const gdb_exception_error &ex) |
a2459270 | 2954 | { |
a2459270 PA |
2955 | return; |
2956 | } | |
a2459270 PA |
2957 | |
2958 | complete_label (tracker, &parser, label_name); | |
a2459270 PA |
2959 | } |
2960 | ||
c45ec17c PA |
2961 | /* See description in linespec.h. */ |
2962 | ||
2963 | void | |
a20714ff PA |
2964 | linespec_complete (completion_tracker &tracker, const char *text, |
2965 | symbol_name_match_type match_type) | |
c45ec17c | 2966 | { |
c45ec17c PA |
2967 | const char *orig = text; |
2968 | ||
3a6ae42d | 2969 | linespec_parser parser (0, current_language, NULL, NULL, 0, NULL); |
c45ec17c | 2970 | parser.lexer.saved_arg = text; |
a20714ff | 2971 | PARSER_EXPLICIT (&parser)->func_name_match_type = match_type; |
c45ec17c PA |
2972 | PARSER_STREAM (&parser) = text; |
2973 | ||
2974 | parser.completion_tracker = &tracker; | |
2975 | PARSER_STATE (&parser)->is_linespec = 1; | |
2976 | ||
2977 | /* Parse as much as possible. parser.completion_word will hold | |
2978 | furthest completion point we managed to parse to. */ | |
a70b8144 | 2979 | try |
c45ec17c | 2980 | { |
a20714ff | 2981 | parse_linespec (&parser, text, match_type); |
c45ec17c | 2982 | } |
230d2906 | 2983 | catch (const gdb_exception_error &except) |
c45ec17c PA |
2984 | { |
2985 | } | |
c45ec17c PA |
2986 | |
2987 | if (parser.completion_quote_char != '\0' | |
2988 | && parser.completion_quote_end != NULL | |
2989 | && parser.completion_quote_end[1] == '\0') | |
2990 | { | |
2991 | /* If completing a quoted string with the cursor right at | |
2992 | terminating quote char, complete the completion word without | |
2993 | interpretation, so that readline advances the cursor one | |
2994 | whitespace past the quote, even if there's no match. This | |
2995 | makes these cases behave the same: | |
2996 | ||
2997 | before: "b function()" | |
2998 | after: "b function() " | |
2999 | ||
3000 | before: "b 'function()'" | |
3001 | after: "b 'function()' " | |
3002 | ||
3003 | and trusts the user in this case: | |
3004 | ||
3005 | before: "b 'not_loaded_function_yet()'" | |
3006 | after: "b 'not_loaded_function_yet()' " | |
3007 | */ | |
3008 | parser.complete_what = linespec_complete_what::NOTHING; | |
3009 | parser.completion_quote_char = '\0'; | |
3010 | ||
3011 | gdb::unique_xmalloc_ptr<char> text_copy | |
3012 | (xstrdup (parser.completion_word)); | |
3013 | tracker.add_completion (std::move (text_copy)); | |
3014 | } | |
3015 | ||
3016 | tracker.set_quote_char (parser.completion_quote_char); | |
3017 | ||
3018 | if (parser.complete_what == linespec_complete_what::LABEL) | |
3019 | { | |
3020 | parser.complete_what = linespec_complete_what::NOTHING; | |
3021 | ||
3022 | const char *func_name = PARSER_EXPLICIT (&parser)->function_name; | |
3023 | ||
7e41c8db | 3024 | std::vector<block_symbol> function_symbols; |
c2a031c5 | 3025 | std::vector<bound_minimal_symbol> minimal_symbols; |
c45ec17c PA |
3026 | find_linespec_symbols (PARSER_STATE (&parser), |
3027 | PARSER_RESULT (&parser)->file_symtabs, | |
a20714ff | 3028 | func_name, match_type, |
c45ec17c PA |
3029 | &function_symbols, &minimal_symbols); |
3030 | ||
7243d011 | 3031 | PARSER_RESULT (&parser)->function_symbols |
7e41c8db | 3032 | = new std::vector<block_symbol> (std::move (function_symbols)); |
c2a031c5 KS |
3033 | PARSER_RESULT (&parser)->minimal_symbols |
3034 | = new std::vector<bound_minimal_symbol> (std::move (minimal_symbols)); | |
c45ec17c PA |
3035 | |
3036 | complete_label (tracker, &parser, parser.completion_word); | |
3037 | } | |
3038 | else if (parser.complete_what == linespec_complete_what::FUNCTION) | |
3039 | { | |
3040 | /* While parsing/lexing, we didn't know whether the completion | |
3041 | word completes to a unique function/source name already or | |
3042 | not. | |
3043 | ||
3044 | E.g.: | |
3045 | "b function() <tab>" | |
3046 | may need to complete either to: | |
3047 | "b function() const" | |
3048 | or to: | |
3049 | "b function() if/thread/task" | |
3050 | ||
3051 | Or, this: | |
3052 | "b foo t" | |
3053 | may need to complete either to: | |
3054 | "b foo template_fun<T>()" | |
3055 | with "foo" being the template function's return type, or to: | |
3056 | "b foo thread/task" | |
3057 | ||
3058 | Or, this: | |
3059 | "b file<TAB>" | |
3060 | may need to complete either to a source file name: | |
3061 | "b file.c" | |
3062 | or this, also a filename, but a unique completion: | |
3063 | "b file.c:" | |
3064 | or to a function name: | |
3065 | "b file_function" | |
3066 | ||
3067 | Address that by completing assuming source or function, and | |
3068 | seeing if we find a completion that matches exactly the | |
3069 | completion word. If so, then it must be a function (see note | |
3070 | below) and we advance the completion word to the end of input | |
3071 | and switch to KEYWORD completion mode. | |
3072 | ||
3073 | Note: if we find a unique completion for a source filename, | |
3074 | then it won't match the completion word, because the LCD will | |
3075 | contain a trailing ':'. And if we're completing at or after | |
3076 | the ':', then complete_linespec_component won't try to | |
3077 | complete on source filenames. */ | |
3078 | ||
c45ec17c PA |
3079 | const char *word = parser.completion_word; |
3080 | ||
3081 | complete_linespec_component (&parser, tracker, | |
3082 | parser.completion_word, | |
3083 | linespec_complete_what::FUNCTION, | |
3084 | PARSER_EXPLICIT (&parser)->source_filename); | |
3085 | ||
3086 | parser.complete_what = linespec_complete_what::NOTHING; | |
3087 | ||
3088 | if (tracker.quote_char ()) | |
3089 | { | |
3090 | /* The function/file name was not close-quoted, so this | |
3091 | can't be a keyword. Note: complete_linespec_component | |
3092 | may have swapped the original quote char for ':' when we | |
3093 | get here, but that still indicates the same. */ | |
3094 | } | |
3095 | else if (!tracker.have_completions ()) | |
3096 | { | |
3097 | size_t key_start; | |
3098 | size_t wordlen = strlen (parser.completion_word); | |
3099 | ||
3100 | key_start | |
3101 | = string_find_incomplete_keyword_at_end (linespec_keywords, | |
3102 | parser.completion_word, | |
3103 | wordlen); | |
3104 | ||
3105 | if (key_start != -1 | |
3106 | || (wordlen > 0 | |
3107 | && parser.completion_word[wordlen - 1] == ' ')) | |
3108 | { | |
3109 | parser.completion_word += key_start; | |
3110 | parser.complete_what = linespec_complete_what::KEYWORD; | |
3111 | } | |
3112 | } | |
3113 | else if (tracker.completes_to_completion_word (word)) | |
3114 | { | |
3115 | /* Skip the function and complete on keywords. */ | |
3116 | parser.completion_word += strlen (word); | |
3117 | parser.complete_what = linespec_complete_what::KEYWORD; | |
3118 | tracker.discard_completions (); | |
3119 | } | |
3120 | } | |
3121 | ||
3122 | tracker.advance_custom_word_point_by (parser.completion_word - orig); | |
3123 | ||
3124 | complete_linespec_component (&parser, tracker, | |
3125 | parser.completion_word, | |
3126 | parser.complete_what, | |
3127 | PARSER_EXPLICIT (&parser)->source_filename); | |
3128 | ||
3129 | /* If we're past the "filename:function:label:offset" linespec, and | |
3130 | didn't find any match, then assume the user might want to create | |
3131 | a pending breakpoint anyway and offer the keyword | |
3132 | completions. */ | |
3133 | if (!parser.completion_quote_char | |
3134 | && (parser.complete_what == linespec_complete_what::FUNCTION | |
3135 | || parser.complete_what == linespec_complete_what::LABEL | |
3136 | || parser.complete_what == linespec_complete_what::NOTHING) | |
3137 | && !tracker.have_completions ()) | |
3138 | { | |
3139 | const char *end | |
3140 | = parser.completion_word + strlen (parser.completion_word); | |
3141 | ||
3142 | if (end > orig && end[-1] == ' ') | |
3143 | { | |
3144 | tracker.advance_custom_word_point_by (end - parser.completion_word); | |
3145 | ||
3146 | complete_linespec_component (&parser, tracker, end, | |
3147 | linespec_complete_what::KEYWORD, | |
3148 | NULL); | |
3149 | } | |
3150 | } | |
c45ec17c PA |
3151 | } |
3152 | ||
f00aae0f | 3153 | /* A helper function for decode_line_full and decode_line_1 to |
6c5b2ebe | 3154 | turn LOCATION into std::vector<symtab_and_line>. */ |
f00aae0f | 3155 | |
6c5b2ebe | 3156 | static std::vector<symtab_and_line> |
f00aae0f KS |
3157 | event_location_to_sals (linespec_parser *parser, |
3158 | const struct event_location *location) | |
3159 | { | |
6c5b2ebe | 3160 | std::vector<symtab_and_line> result; |
f00aae0f KS |
3161 | |
3162 | switch (event_location_type (location)) | |
3163 | { | |
3164 | case LINESPEC_LOCATION: | |
3165 | { | |
00e52e53 | 3166 | PARSER_STATE (parser)->is_linespec = 1; |
a70b8144 | 3167 | try |
f00aae0f | 3168 | { |
a20714ff PA |
3169 | const linespec_location *ls = get_linespec_location (location); |
3170 | result = parse_linespec (parser, | |
3171 | ls->spec_string, ls->match_type); | |
f00aae0f | 3172 | } |
230d2906 | 3173 | catch (const gdb_exception_error &except) |
f00aae0f | 3174 | { |
eedc3f4f | 3175 | throw; |
f00aae0f | 3176 | } |
f00aae0f KS |
3177 | } |
3178 | break; | |
3179 | ||
a06efdd6 | 3180 | case ADDRESS_LOCATION: |
305e13e6 JB |
3181 | { |
3182 | const char *addr_string = get_address_string_location (location); | |
3183 | CORE_ADDR addr = get_address_location (location); | |
3184 | ||
3185 | if (addr_string != NULL) | |
3186 | { | |
9be2c17a | 3187 | addr = linespec_expression_to_pc (&addr_string); |
305e13e6 JB |
3188 | if (PARSER_STATE (parser)->canonical != NULL) |
3189 | PARSER_STATE (parser)->canonical->location | |
8e9e35b1 | 3190 | = copy_event_location (location); |
305e13e6 JB |
3191 | } |
3192 | ||
3193 | result = convert_address_location_to_sals (PARSER_STATE (parser), | |
3194 | addr); | |
3195 | } | |
a06efdd6 KS |
3196 | break; |
3197 | ||
00e52e53 KS |
3198 | case EXPLICIT_LOCATION: |
3199 | { | |
67994074 | 3200 | const struct explicit_location *explicit_loc; |
00e52e53 | 3201 | |
67994074 | 3202 | explicit_loc = get_explicit_location_const (location); |
00e52e53 KS |
3203 | result = convert_explicit_location_to_sals (PARSER_STATE (parser), |
3204 | PARSER_RESULT (parser), | |
67994074 | 3205 | explicit_loc); |
00e52e53 KS |
3206 | } |
3207 | break; | |
3208 | ||
5b56227b KS |
3209 | case PROBE_LOCATION: |
3210 | /* Probes are handled by their own decoders. */ | |
3211 | gdb_assert_not_reached ("attempt to decode probe location"); | |
3212 | break; | |
3213 | ||
f00aae0f KS |
3214 | default: |
3215 | gdb_assert_not_reached ("unhandled event location type"); | |
3216 | } | |
3217 | ||
3218 | return result; | |
3219 | } | |
3220 | ||
f8eba3c6 | 3221 | /* See linespec.h. */ |
44fe14ab | 3222 | |
f8eba3c6 | 3223 | void |
626d2320 | 3224 | decode_line_full (struct event_location *location, int flags, |
c2f4122d | 3225 | struct program_space *search_pspace, |
f8eba3c6 TT |
3226 | struct symtab *default_symtab, |
3227 | int default_line, struct linespec_result *canonical, | |
3228 | const char *select_mode, | |
3229 | const char *filter) | |
44fe14ab | 3230 | { |
f73c6ece | 3231 | std::vector<const char *> filters; |
40e084e1 | 3232 | struct linespec_state *state; |
f8eba3c6 TT |
3233 | |
3234 | gdb_assert (canonical != NULL); | |
3235 | /* The filter only makes sense for 'all'. */ | |
3236 | gdb_assert (filter == NULL || select_mode == multiple_symbols_all); | |
3237 | gdb_assert (select_mode == NULL | |
3238 | || select_mode == multiple_symbols_all | |
3239 | || select_mode == multiple_symbols_ask | |
3240 | || select_mode == multiple_symbols_cancel); | |
3241 | gdb_assert ((flags & DECODE_LINE_LIST_MODE) == 0); | |
3242 | ||
3a6ae42d TT |
3243 | linespec_parser parser (flags, current_language, |
3244 | search_pspace, default_symtab, | |
3245 | default_line, canonical); | |
5ed8105e PA |
3246 | |
3247 | scoped_restore_current_program_space restore_pspace; | |
f8eba3c6 | 3248 | |
6c5b2ebe PA |
3249 | std::vector<symtab_and_line> result = event_location_to_sals (&parser, |
3250 | location); | |
40e084e1 | 3251 | state = PARSER_STATE (&parser); |
f8eba3c6 | 3252 | |
626d2320 TV |
3253 | if (result.size () == 0) |
3254 | throw_error (NOT_SUPPORTED_ERROR, _("Location %s not available"), | |
3255 | event_location_to_string (location)); | |
3256 | ||
6c5b2ebe | 3257 | gdb_assert (result.size () == 1 || canonical->pre_expanded); |
f8eba3c6 TT |
3258 | canonical->pre_expanded = 1; |
3259 | ||
66f1999b | 3260 | /* Arrange for allocated canonical names to be freed. */ |
3a6ae42d TT |
3261 | std::vector<gdb::unique_xmalloc_ptr<char>> hold_names; |
3262 | for (int i = 0; i < result.size (); ++i) | |
f8eba3c6 | 3263 | { |
3a6ae42d TT |
3264 | gdb_assert (state->canonical_names[i].suffix != NULL); |
3265 | hold_names.emplace_back (state->canonical_names[i].suffix); | |
f8eba3c6 TT |
3266 | } |
3267 | ||
3268 | if (select_mode == NULL) | |
3269 | { | |
29f94340 | 3270 | if (top_level_interpreter ()->interp_ui_out ()->is_mi_like_p ()) |
f8eba3c6 TT |
3271 | select_mode = multiple_symbols_all; |
3272 | else | |
3273 | select_mode = multiple_symbols_select_mode (); | |
3274 | } | |
3275 | ||
3276 | if (select_mode == multiple_symbols_all) | |
3277 | { | |
3278 | if (filter != NULL) | |
3279 | { | |
f73c6ece | 3280 | filters.push_back (filter); |
40e084e1 | 3281 | filter_results (state, &result, filters); |
f8eba3c6 TT |
3282 | } |
3283 | else | |
40e084e1 | 3284 | convert_results_to_lsals (state, &result); |
f8eba3c6 TT |
3285 | } |
3286 | else | |
40e084e1 | 3287 | decode_line_2 (state, &result, select_mode); |
f8eba3c6 TT |
3288 | } |
3289 | ||
39cf75f7 DE |
3290 | /* See linespec.h. */ |
3291 | ||
6c5b2ebe | 3292 | std::vector<symtab_and_line> |
f00aae0f | 3293 | decode_line_1 (const struct event_location *location, int flags, |
c2f4122d | 3294 | struct program_space *search_pspace, |
f8eba3c6 TT |
3295 | struct symtab *default_symtab, |
3296 | int default_line) | |
3297 | { | |
3a6ae42d TT |
3298 | linespec_parser parser (flags, current_language, |
3299 | search_pspace, default_symtab, | |
3300 | default_line, NULL); | |
5ed8105e PA |
3301 | |
3302 | scoped_restore_current_program_space restore_pspace; | |
f8eba3c6 | 3303 | |
3a6ae42d | 3304 | return event_location_to_sals (&parser, location); |
f8eba3c6 TT |
3305 | } |
3306 | ||
39cf75f7 DE |
3307 | /* See linespec.h. */ |
3308 | ||
6c5b2ebe | 3309 | std::vector<symtab_and_line> |
f2fc3015 | 3310 | decode_line_with_current_source (const char *string, int flags) |
39cf75f7 | 3311 | { |
39cf75f7 DE |
3312 | if (string == 0) |
3313 | error (_("Empty line specification.")); | |
3314 | ||
3315 | /* We use whatever is set as the current source line. We do not try | |
3316 | and get a default source symtab+line or it will recursively call us! */ | |
6c5b2ebe | 3317 | symtab_and_line cursal = get_current_source_symtab_and_line (); |
39cf75f7 | 3318 | |
ffc2605c TT |
3319 | event_location_up location = string_to_event_location (&string, |
3320 | current_language); | |
6c5b2ebe PA |
3321 | std::vector<symtab_and_line> sals |
3322 | = decode_line_1 (location.get (), flags, NULL, cursal.symtab, cursal.line); | |
39cf75f7 DE |
3323 | |
3324 | if (*string) | |
3325 | error (_("Junk at end of line specification: %s"), string); | |
f00aae0f | 3326 | |
39cf75f7 DE |
3327 | return sals; |
3328 | } | |
3329 | ||
3330 | /* See linespec.h. */ | |
3331 | ||
6c5b2ebe | 3332 | std::vector<symtab_and_line> |
f2fc3015 | 3333 | decode_line_with_last_displayed (const char *string, int flags) |
39cf75f7 | 3334 | { |
39cf75f7 DE |
3335 | if (string == 0) |
3336 | error (_("Empty line specification.")); | |
3337 | ||
ffc2605c TT |
3338 | event_location_up location = string_to_event_location (&string, |
3339 | current_language); | |
6c5b2ebe PA |
3340 | std::vector<symtab_and_line> sals |
3341 | = (last_displayed_sal_is_valid () | |
3342 | ? decode_line_1 (location.get (), flags, NULL, | |
3343 | get_last_displayed_symtab (), | |
3344 | get_last_displayed_line ()) | |
cafb3438 | 3345 | : decode_line_1 (location.get (), flags, NULL, NULL, 0)); |
39cf75f7 DE |
3346 | |
3347 | if (*string) | |
3348 | error (_("Junk at end of line specification: %s"), string); | |
f00aae0f | 3349 | |
39cf75f7 DE |
3350 | return sals; |
3351 | } | |
3352 | ||
f8eba3c6 TT |
3353 | \f |
3354 | ||
85102364 | 3355 | /* First, some functions to initialize stuff at the beginning of the |
f8eba3c6 TT |
3356 | function. */ |
3357 | ||
3358 | static void | |
3359 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
3360 | { | |
3361 | if (*default_symtab == 0) | |
3362 | { | |
3363 | /* Use whatever we have for the default source line. We don't use | |
dda83cd7 | 3364 | get_current_or_default_symtab_and_line as it can recurse and call |
f8eba3c6 TT |
3365 | us back! */ |
3366 | struct symtab_and_line cursal = | |
3367 | get_current_source_symtab_and_line (); | |
3368 | ||
3369 | *default_symtab = cursal.symtab; | |
3370 | *default_line = cursal.line; | |
3371 | } | |
3372 | } | |
3373 | ||
3374 | \f | |
3375 | ||
40e084e1 KS |
3376 | /* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR, |
3377 | advancing EXP_PTR past any parsed text. */ | |
f8eba3c6 | 3378 | |
a06efdd6 | 3379 | CORE_ADDR |
bbc13ae3 | 3380 | linespec_expression_to_pc (const char **exp_ptr) |
f8eba3c6 | 3381 | { |
f8eba3c6 TT |
3382 | if (current_program_space->executing_startup) |
3383 | /* The error message doesn't really matter, because this case | |
3384 | should only hit during breakpoint reset. */ | |
3385 | throw_error (NOT_FOUND_ERROR, _("cannot evaluate expressions while " | |
3386 | "program space is in startup")); | |
3387 | ||
40e084e1 KS |
3388 | (*exp_ptr)++; |
3389 | return value_as_address (parse_to_comma_and_eval (exp_ptr)); | |
0960f083 DC |
3390 | } |
3391 | ||
3392 | \f | |
3393 | ||
d2630e69 AF |
3394 | /* Here's where we recognise an Objective-C Selector. An Objective C |
3395 | selector may be implemented by more than one class, therefore it | |
3396 | may represent more than one method/function. This gives us a | |
3397 | situation somewhat analogous to C++ overloading. If there's more | |
3398 | than one method that could represent the selector, then use some of | |
3399 | the existing C++ code to let the user choose one. */ | |
3400 | ||
6c5b2ebe | 3401 | static std::vector<symtab_and_line> |
f00aae0f | 3402 | decode_objc (struct linespec_state *self, linespec_p ls, const char *arg) |
d2630e69 | 3403 | { |
f8eba3c6 | 3404 | struct collect_info info; |
9b2f8581 | 3405 | std::vector<const char *> symbol_names; |
d7561cbb | 3406 | const char *new_argptr; |
f8eba3c6 TT |
3407 | |
3408 | info.state = self; | |
2a908241 KS |
3409 | std::vector<symtab *> symtabs; |
3410 | symtabs.push_back (nullptr); | |
3411 | ||
3412 | info.file_symtabs = &symtabs; | |
7243d011 | 3413 | |
7e41c8db | 3414 | std::vector<block_symbol> symbols; |
7243d011 | 3415 | info.result.symbols = &symbols; |
c2a031c5 KS |
3416 | std::vector<bound_minimal_symbol> minimal_symbols; |
3417 | info.result.minimal_symbols = &minimal_symbols; | |
f8eba3c6 | 3418 | |
f00aae0f | 3419 | new_argptr = find_imps (arg, &symbol_names); |
9b2f8581 | 3420 | if (symbol_names.empty ()) |
2a908241 | 3421 | return {}; |
d2630e69 | 3422 | |
56d87ef7 PA |
3423 | add_all_symbol_names_from_pspace (&info, NULL, symbol_names, |
3424 | FUNCTIONS_DOMAIN); | |
d2630e69 | 3425 | |
6c5b2ebe | 3426 | std::vector<symtab_and_line> values; |
c2a031c5 | 3427 | if (!symbols.empty () || !minimal_symbols.empty ()) |
d2630e69 | 3428 | { |
f8eba3c6 | 3429 | char *saved_arg; |
d2630e69 | 3430 | |
224c3ddb | 3431 | saved_arg = (char *) alloca (new_argptr - arg + 1); |
f00aae0f KS |
3432 | memcpy (saved_arg, arg, new_argptr - arg); |
3433 | saved_arg[new_argptr - arg] = '\0'; | |
d2630e69 | 3434 | |
67994074 | 3435 | ls->explicit_loc.function_name = xstrdup (saved_arg); |
7e41c8db KS |
3436 | ls->function_symbols |
3437 | = new std::vector<block_symbol> (std::move (symbols)); | |
c2a031c5 KS |
3438 | ls->minimal_symbols |
3439 | = new std::vector<bound_minimal_symbol> (std::move (minimal_symbols)); | |
40e084e1 KS |
3440 | values = convert_linespec_to_sals (self, ls); |
3441 | ||
f8eba3c6 | 3442 | if (self->canonical) |
d2630e69 | 3443 | { |
f2fc3015 TT |
3444 | std::string holder; |
3445 | const char *str; | |
f00aae0f | 3446 | |
f8eba3c6 | 3447 | self->canonical->pre_expanded = 1; |
f00aae0f | 3448 | |
67994074 | 3449 | if (ls->explicit_loc.source_filename) |
f00aae0f | 3450 | { |
f2fc3015 TT |
3451 | holder = string_printf ("%s:%s", |
3452 | ls->explicit_loc.source_filename, | |
3453 | saved_arg); | |
3454 | str = holder.c_str (); | |
f00aae0f | 3455 | } |
f8eba3c6 | 3456 | else |
f2fc3015 | 3457 | str = saved_arg; |
f00aae0f | 3458 | |
a20714ff PA |
3459 | self->canonical->location |
3460 | = new_linespec_location (&str, symbol_name_match_type::FULL); | |
d2630e69 | 3461 | } |
d2630e69 AF |
3462 | } |
3463 | ||
40e084e1 | 3464 | return values; |
f8eba3c6 | 3465 | } |
c00f8484 | 3466 | |
ffdbe864 YQ |
3467 | namespace { |
3468 | ||
14bc53a8 PA |
3469 | /* A function object that serves as symbol_found_callback_ftype |
3470 | callback for iterate_over_symbols. This is used by | |
3471 | lookup_prefix_sym to collect type symbols. */ | |
3472 | class decode_compound_collector | |
f8eba3c6 | 3473 | { |
14bc53a8 | 3474 | public: |
fc4007c9 | 3475 | decode_compound_collector () |
7a8a5d47 TT |
3476 | : m_unique_syms (htab_create_alloc (1, htab_hash_pointer, |
3477 | htab_eq_pointer, NULL, | |
3478 | xcalloc, xfree)) | |
fc4007c9 | 3479 | { |
fc4007c9 | 3480 | } |
3a93a0c2 | 3481 | |
4dedf84d | 3482 | /* Return all symbols collected. */ |
7e41c8db | 3483 | std::vector<block_symbol> release_symbols () |
14bc53a8 | 3484 | { |
4dedf84d | 3485 | return std::move (m_symbols); |
14bc53a8 | 3486 | } |
c00f8484 | 3487 | |
14bc53a8 | 3488 | /* Callable as a symbol_found_callback_ftype callback. */ |
7e41c8db | 3489 | bool operator () (block_symbol *bsym); |
14bc53a8 PA |
3490 | |
3491 | private: | |
3492 | /* A hash table of all symbols we found. We use this to avoid | |
3493 | adding any symbol more than once. */ | |
7a8a5d47 | 3494 | htab_up m_unique_syms; |
14bc53a8 PA |
3495 | |
3496 | /* The result vector. */ | |
7e41c8db | 3497 | std::vector<block_symbol> m_symbols; |
14bc53a8 PA |
3498 | }; |
3499 | ||
3500 | bool | |
7e41c8db | 3501 | decode_compound_collector::operator () (block_symbol *bsym) |
f8eba3c6 | 3502 | { |
f8eba3c6 TT |
3503 | void **slot; |
3504 | struct type *t; | |
7e41c8db | 3505 | struct symbol *sym = bsym->symbol; |
614b3b14 | 3506 | |
f8eba3c6 | 3507 | if (SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
14bc53a8 | 3508 | return true; /* Continue iterating. */ |
f8eba3c6 TT |
3509 | |
3510 | t = SYMBOL_TYPE (sym); | |
f168693b | 3511 | t = check_typedef (t); |
78134374 SM |
3512 | if (t->code () != TYPE_CODE_STRUCT |
3513 | && t->code () != TYPE_CODE_UNION | |
3514 | && t->code () != TYPE_CODE_NAMESPACE) | |
14bc53a8 | 3515 | return true; /* Continue iterating. */ |
614b3b14 | 3516 | |
7a8a5d47 | 3517 | slot = htab_find_slot (m_unique_syms.get (), sym, INSERT); |
f8eba3c6 TT |
3518 | if (!*slot) |
3519 | { | |
3520 | *slot = sym; | |
7e41c8db | 3521 | m_symbols.push_back (*bsym); |
f8eba3c6 TT |
3522 | } |
3523 | ||
14bc53a8 | 3524 | return true; /* Continue iterating. */ |
f8eba3c6 | 3525 | } |
93d91629 | 3526 | |
ffdbe864 YQ |
3527 | } // namespace |
3528 | ||
40e084e1 | 3529 | /* Return any symbols corresponding to CLASS_NAME in FILE_SYMTABS. */ |
93d91629 | 3530 | |
7e41c8db | 3531 | static std::vector<block_symbol> |
2a908241 KS |
3532 | lookup_prefix_sym (struct linespec_state *state, |
3533 | std::vector<symtab *> *file_symtabs, | |
40e084e1 | 3534 | const char *class_name) |
93d91629 | 3535 | { |
14bc53a8 | 3536 | decode_compound_collector collector; |
e0881a8e | 3537 | |
b5ec771e PA |
3538 | lookup_name_info lookup_name (class_name, symbol_name_match_type::FULL); |
3539 | ||
2a908241 | 3540 | for (const auto &elt : *file_symtabs) |
f8eba3c6 | 3541 | { |
2a908241 | 3542 | if (elt == nullptr) |
f8eba3c6 | 3543 | { |
b5ec771e | 3544 | iterate_over_all_matching_symtabs (state, lookup_name, |
56d87ef7 PA |
3545 | STRUCT_DOMAIN, ALL_DOMAIN, |
3546 | NULL, false, collector); | |
b5ec771e | 3547 | iterate_over_all_matching_symtabs (state, lookup_name, |
56d87ef7 PA |
3548 | VAR_DOMAIN, ALL_DOMAIN, |
3549 | NULL, false, collector); | |
f8eba3c6 TT |
3550 | } |
3551 | else | |
3552 | { | |
f8eba3c6 TT |
3553 | /* Program spaces that are executing startup should have |
3554 | been filtered out earlier. */ | |
3555 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
3556 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
b5ec771e PA |
3557 | iterate_over_file_blocks (elt, lookup_name, STRUCT_DOMAIN, collector); |
3558 | iterate_over_file_blocks (elt, lookup_name, VAR_DOMAIN, collector); | |
1e5a1abc KS |
3559 | } |
3560 | } | |
3561 | ||
14bc53a8 | 3562 | return collector.release_symbols (); |
93d91629 DC |
3563 | } |
3564 | ||
7243d011 KS |
3565 | /* A std::sort comparison function for symbols. The resulting order does |
3566 | not actually matter; we just need to be able to sort them so that | |
3567 | symbols with the same program space end up next to each other. */ | |
3568 | ||
3569 | static bool | |
7e41c8db | 3570 | compare_symbols (const block_symbol &a, const block_symbol &b) |
7243d011 KS |
3571 | { |
3572 | uintptr_t uia, uib; | |
3573 | ||
7e41c8db KS |
3574 | uia = (uintptr_t) SYMTAB_PSPACE (symbol_symtab (a.symbol)); |
3575 | uib = (uintptr_t) SYMTAB_PSPACE (symbol_symtab (b.symbol)); | |
7243d011 KS |
3576 | |
3577 | if (uia < uib) | |
3578 | return true; | |
3579 | if (uia > uib) | |
3580 | return false; | |
3581 | ||
7e41c8db KS |
3582 | uia = (uintptr_t) a.symbol; |
3583 | uib = (uintptr_t) b.symbol; | |
7243d011 KS |
3584 | |
3585 | if (uia < uib) | |
3586 | return true; | |
3587 | ||
3588 | return false; | |
3589 | } | |
3590 | ||
40e084e1 | 3591 | /* Like compare_symbols but for minimal symbols. */ |
4224873a | 3592 | |
c2a031c5 KS |
3593 | static bool |
3594 | compare_msymbols (const bound_minimal_symbol &a, const bound_minimal_symbol &b) | |
4224873a | 3595 | { |
f8eba3c6 TT |
3596 | uintptr_t uia, uib; |
3597 | ||
c2a031c5 KS |
3598 | uia = (uintptr_t) a.objfile->pspace; |
3599 | uib = (uintptr_t) a.objfile->pspace; | |
f8eba3c6 TT |
3600 | |
3601 | if (uia < uib) | |
c2a031c5 | 3602 | return true; |
f8eba3c6 | 3603 | if (uia > uib) |
c2a031c5 | 3604 | return false; |
f8eba3c6 | 3605 | |
c2a031c5 KS |
3606 | uia = (uintptr_t) a.minsym; |
3607 | uib = (uintptr_t) b.minsym; | |
f8eba3c6 TT |
3608 | |
3609 | if (uia < uib) | |
c2a031c5 | 3610 | return true; |
f8eba3c6 | 3611 | |
c2a031c5 | 3612 | return false; |
f8eba3c6 TT |
3613 | } |
3614 | ||
3615 | /* Look for all the matching instances of each symbol in NAMES. Only | |
3616 | instances from PSPACE are considered; other program spaces are | |
3617 | handled by our caller. If PSPACE is NULL, then all program spaces | |
3618 | are considered. Results are stored into INFO. */ | |
3619 | ||
3620 | static void | |
3621 | add_all_symbol_names_from_pspace (struct collect_info *info, | |
3622 | struct program_space *pspace, | |
9b2f8581 | 3623 | const std::vector<const char *> &names, |
56d87ef7 | 3624 | enum search_domain search_domain) |
f8eba3c6 | 3625 | { |
9b2f8581 | 3626 | for (const char *iter : names) |
b5ec771e PA |
3627 | add_matching_symbols_to_info (iter, |
3628 | symbol_name_match_type::FULL, | |
56d87ef7 | 3629 | search_domain, info, pspace); |
f8eba3c6 TT |
3630 | } |
3631 | ||
3632 | static void | |
8e8d776e | 3633 | find_superclass_methods (std::vector<struct type *> &&superclasses, |
b5ec771e | 3634 | const char *name, enum language name_lang, |
9b2f8581 | 3635 | std::vector<const char *> *result_names) |
f8eba3c6 | 3636 | { |
9b2f8581 | 3637 | size_t old_len = result_names->size (); |
f8eba3c6 | 3638 | |
f8eba3c6 TT |
3639 | while (1) |
3640 | { | |
8e8d776e | 3641 | std::vector<struct type *> new_supers; |
f8eba3c6 | 3642 | |
52941706 | 3643 | for (type *t : superclasses) |
b5ec771e | 3644 | find_methods (t, name_lang, name, result_names, &new_supers); |
f8eba3c6 | 3645 | |
8e8d776e | 3646 | if (result_names->size () != old_len || new_supers.empty ()) |
f8eba3c6 | 3647 | break; |
4224873a | 3648 | |
8e8d776e | 3649 | superclasses = std::move (new_supers); |
f8eba3c6 | 3650 | } |
f8eba3c6 TT |
3651 | } |
3652 | ||
40e084e1 KS |
3653 | /* This finds the method METHOD_NAME in the class CLASS_NAME whose type is |
3654 | given by one of the symbols in SYM_CLASSES. Matches are returned | |
3655 | in SYMBOLS (for debug symbols) and MINSYMS (for minimal symbols). */ | |
f8eba3c6 | 3656 | |
40e084e1 | 3657 | static void |
2a908241 | 3658 | find_method (struct linespec_state *self, std::vector<symtab *> *file_symtabs, |
40e084e1 | 3659 | const char *class_name, const char *method_name, |
7e41c8db KS |
3660 | std::vector<block_symbol> *sym_classes, |
3661 | std::vector<block_symbol> *symbols, | |
c2a031c5 | 3662 | std::vector<bound_minimal_symbol> *minsyms) |
f8eba3c6 | 3663 | { |
9b2f8581 | 3664 | size_t last_result_len; |
8e8d776e | 3665 | std::vector<struct type *> superclass_vec; |
9b2f8581 | 3666 | std::vector<const char *> result_names; |
f8eba3c6 | 3667 | struct collect_info info; |
4224873a | 3668 | |
f8eba3c6 TT |
3669 | /* Sort symbols so that symbols with the same program space are next |
3670 | to each other. */ | |
4dedf84d KS |
3671 | std::sort (sym_classes->begin (), sym_classes->end (), |
3672 | compare_symbols); | |
f8eba3c6 TT |
3673 | |
3674 | info.state = self; | |
40e084e1 | 3675 | info.file_symtabs = file_symtabs; |
7243d011 | 3676 | info.result.symbols = symbols; |
c2a031c5 | 3677 | info.result.minimal_symbols = minsyms; |
f8eba3c6 TT |
3678 | |
3679 | /* Iterate over all the types, looking for the names of existing | |
40e084e1 | 3680 | methods matching METHOD_NAME. If we cannot find a direct method in a |
f8eba3c6 TT |
3681 | given program space, then we consider inherited methods; this is |
3682 | not ideal (ideal would be to respect C++ hiding rules), but it | |
3683 | seems good enough and is what GDB has historically done. We only | |
3684 | need to collect the names because later we find all symbols with | |
3685 | those names. This loop is written in a somewhat funny way | |
3686 | because we collect data across the program space before deciding | |
3687 | what to do. */ | |
f8eba3c6 | 3688 | last_result_len = 0; |
7e41c8db | 3689 | for (const auto &elt : *sym_classes) |
f8eba3c6 TT |
3690 | { |
3691 | struct type *t; | |
3692 | struct program_space *pspace; | |
7e41c8db | 3693 | struct symbol *sym = elt.symbol; |
ea90f227 | 3694 | unsigned int ix = &elt - &*sym_classes->begin (); |
f8eba3c6 TT |
3695 | |
3696 | /* Program spaces that are executing startup should have | |
3697 | been filtered out earlier. */ | |
08be3fe3 DE |
3698 | pspace = SYMTAB_PSPACE (symbol_symtab (sym)); |
3699 | gdb_assert (!pspace->executing_startup); | |
f8eba3c6 TT |
3700 | set_current_program_space (pspace); |
3701 | t = check_typedef (SYMBOL_TYPE (sym)); | |
c1b5c1eb | 3702 | find_methods (t, sym->language (), |
b5ec771e | 3703 | method_name, &result_names, &superclass_vec); |
f8eba3c6 TT |
3704 | |
3705 | /* Handle all items from a single program space at once; and be | |
3706 | sure not to miss the last batch. */ | |
4dedf84d | 3707 | if (ix == sym_classes->size () - 1 |
f8eba3c6 | 3708 | || (pspace |
7e41c8db | 3709 | != SYMTAB_PSPACE (symbol_symtab (sym_classes->at (ix + 1).symbol)))) |
4224873a | 3710 | { |
f8eba3c6 TT |
3711 | /* If we did not find a direct implementation anywhere in |
3712 | this program space, consider superclasses. */ | |
9b2f8581 | 3713 | if (result_names.size () == last_result_len) |
8e8d776e | 3714 | find_superclass_methods (std::move (superclass_vec), method_name, |
c1b5c1eb | 3715 | sym->language (), &result_names); |
f8eba3c6 TT |
3716 | |
3717 | /* We have a list of candidate symbol names, so now we | |
3718 | iterate over the symbol tables looking for all | |
3719 | matches in this pspace. */ | |
56d87ef7 PA |
3720 | add_all_symbol_names_from_pspace (&info, pspace, result_names, |
3721 | FUNCTIONS_DOMAIN); | |
f8eba3c6 | 3722 | |
8e8d776e | 3723 | superclass_vec.clear (); |
9b2f8581 | 3724 | last_result_len = result_names.size (); |
4224873a | 3725 | } |
4224873a | 3726 | } |
f8eba3c6 | 3727 | |
c2a031c5 KS |
3728 | if (!symbols->empty () || !minsyms->empty ()) |
3729 | return; | |
f8eba3c6 | 3730 | |
40e084e1 KS |
3731 | /* Throw an NOT_FOUND_ERROR. This will be caught by the caller |
3732 | and other attempts to locate the symbol will be made. */ | |
3733 | throw_error (NOT_FOUND_ERROR, _("see caller, this text doesn't matter")); | |
f8eba3c6 TT |
3734 | } |
3735 | ||
3736 | \f | |
3737 | ||
ffdbe864 YQ |
3738 | namespace { |
3739 | ||
14bc53a8 PA |
3740 | /* This function object is a callback for iterate_over_symtabs, used |
3741 | when collecting all matching symtabs. */ | |
f8eba3c6 | 3742 | |
14bc53a8 | 3743 | class symtab_collector |
f8eba3c6 | 3744 | { |
14bc53a8 | 3745 | public: |
fc4007c9 | 3746 | symtab_collector () |
7a8a5d47 TT |
3747 | : m_symtab_table (htab_create (1, htab_hash_pointer, htab_eq_pointer, |
3748 | NULL)) | |
fc4007c9 | 3749 | { |
fc4007c9 | 3750 | } |
f8eba3c6 | 3751 | |
14bc53a8 PA |
3752 | /* Callable as a symbol_found_callback_ftype callback. */ |
3753 | bool operator () (symtab *sym); | |
f8eba3c6 | 3754 | |
4717cec4 SM |
3755 | /* Return an rvalue reference to the collected symtabs. */ |
3756 | std::vector<symtab *> &&release_symtabs () | |
14bc53a8 | 3757 | { |
2a908241 | 3758 | return std::move (m_symtabs); |
14bc53a8 PA |
3759 | } |
3760 | ||
3761 | private: | |
3762 | /* The result vector of symtabs. */ | |
4717cec4 | 3763 | std::vector<symtab *> m_symtabs; |
14bc53a8 PA |
3764 | |
3765 | /* This is used to ensure the symtabs are unique. */ | |
7a8a5d47 | 3766 | htab_up m_symtab_table; |
14bc53a8 PA |
3767 | }; |
3768 | ||
3769 | bool | |
3770 | symtab_collector::operator () (struct symtab *symtab) | |
f8eba3c6 | 3771 | { |
f8eba3c6 TT |
3772 | void **slot; |
3773 | ||
7a8a5d47 | 3774 | slot = htab_find_slot (m_symtab_table.get (), symtab, INSERT); |
f8eba3c6 | 3775 | if (!*slot) |
4224873a | 3776 | { |
f8eba3c6 | 3777 | *slot = symtab; |
4717cec4 | 3778 | m_symtabs.push_back (symtab); |
4224873a | 3779 | } |
f8eba3c6 | 3780 | |
14bc53a8 | 3781 | return false; |
4224873a DC |
3782 | } |
3783 | ||
ffdbe864 YQ |
3784 | } // namespace |
3785 | ||
2a908241 | 3786 | /* Given a file name, return a list of all matching symtabs. If |
c2f4122d PA |
3787 | SEARCH_PSPACE is not NULL, the search is restricted to just that |
3788 | program space. */ | |
f8eba3c6 | 3789 | |
4717cec4 | 3790 | static std::vector<symtab *> |
c2f4122d PA |
3791 | collect_symtabs_from_filename (const char *file, |
3792 | struct program_space *search_pspace) | |
f8eba3c6 | 3793 | { |
14bc53a8 | 3794 | symtab_collector collector; |
f8eba3c6 TT |
3795 | |
3796 | /* Find that file's data. */ | |
c2f4122d PA |
3797 | if (search_pspace == NULL) |
3798 | { | |
94c93c35 | 3799 | for (struct program_space *pspace : program_spaces) |
dda83cd7 | 3800 | { |
c2f4122d PA |
3801 | if (pspace->executing_startup) |
3802 | continue; | |
f8eba3c6 | 3803 | |
c2f4122d | 3804 | set_current_program_space (pspace); |
14bc53a8 | 3805 | iterate_over_symtabs (file, collector); |
c2f4122d PA |
3806 | } |
3807 | } | |
3808 | else | |
3809 | { | |
3810 | set_current_program_space (search_pspace); | |
14bc53a8 | 3811 | iterate_over_symtabs (file, collector); |
c2f4122d | 3812 | } |
f3c39e76 | 3813 | |
14bc53a8 | 3814 | return collector.release_symtabs (); |
f8eba3c6 TT |
3815 | } |
3816 | ||
c2f4122d PA |
3817 | /* Return all the symtabs associated to the FILENAME. If SEARCH_PSPACE is |
3818 | not NULL, the search is restricted to just that program space. */ | |
f8eba3c6 | 3819 | |
4717cec4 | 3820 | static std::vector<symtab *> |
c2f4122d PA |
3821 | symtabs_from_filename (const char *filename, |
3822 | struct program_space *search_pspace) | |
40e084e1 | 3823 | { |
4717cec4 | 3824 | std::vector<symtab *> result |
2a908241 | 3825 | = collect_symtabs_from_filename (filename, search_pspace); |
f8eba3c6 | 3826 | |
4717cec4 | 3827 | if (result.empty ()) |
f8eba3c6 | 3828 | { |
40e084e1 KS |
3829 | if (!have_full_symbols () && !have_partial_symbols ()) |
3830 | throw_error (NOT_FOUND_ERROR, | |
3831 | _("No symbol table is loaded. " | |
3832 | "Use the \"file\" command.")); | |
00e52e53 | 3833 | source_file_not_found_error (filename); |
f8eba3c6 TT |
3834 | } |
3835 | ||
40e084e1 | 3836 | return result; |
84fba31b | 3837 | } |
f3c39e76 | 3838 | |
fcaad03c KS |
3839 | /* See symtab.h. */ |
3840 | ||
3841 | void | |
3842 | symbol_searcher::find_all_symbols (const std::string &name, | |
3843 | const struct language_defn *language, | |
3844 | enum search_domain search_domain, | |
3845 | std::vector<symtab *> *search_symtabs, | |
3846 | struct program_space *search_pspace) | |
3847 | { | |
3848 | symbol_searcher_collect_info info; | |
3849 | struct linespec_state state; | |
3850 | ||
3851 | memset (&state, 0, sizeof (state)); | |
3852 | state.language = language; | |
3853 | info.state = &state; | |
3854 | ||
3855 | info.result.symbols = &m_symbols; | |
3856 | info.result.minimal_symbols = &m_minimal_symbols; | |
3857 | std::vector<symtab *> all_symtabs; | |
3858 | if (search_symtabs == nullptr) | |
3859 | { | |
3860 | all_symtabs.push_back (nullptr); | |
3861 | search_symtabs = &all_symtabs; | |
3862 | } | |
3863 | info.file_symtabs = search_symtabs; | |
3864 | ||
3865 | add_matching_symbols_to_info (name.c_str (), symbol_name_match_type::WILD, | |
3866 | search_domain, &info, search_pspace); | |
3867 | } | |
3868 | ||
40e084e1 KS |
3869 | /* Look up a function symbol named NAME in symtabs FILE_SYMTABS. Matching |
3870 | debug symbols are returned in SYMBOLS. Matching minimal symbols are | |
3871 | returned in MINSYMS. */ | |
14e91ac5 | 3872 | |
40e084e1 KS |
3873 | static void |
3874 | find_function_symbols (struct linespec_state *state, | |
2a908241 | 3875 | std::vector<symtab *> *file_symtabs, const char *name, |
a20714ff | 3876 | symbol_name_match_type name_match_type, |
7e41c8db | 3877 | std::vector<block_symbol> *symbols, |
c2a031c5 | 3878 | std::vector<bound_minimal_symbol> *minsyms) |
14e91ac5 | 3879 | { |
40e084e1 | 3880 | struct collect_info info; |
9b2f8581 | 3881 | std::vector<const char *> symbol_names; |
14e91ac5 | 3882 | |
40e084e1 | 3883 | info.state = state; |
7243d011 | 3884 | info.result.symbols = symbols; |
c2a031c5 | 3885 | info.result.minimal_symbols = minsyms; |
40e084e1 | 3886 | info.file_symtabs = file_symtabs; |
e0881a8e | 3887 | |
40e084e1 | 3888 | /* Try NAME as an Objective-C selector. */ |
d7561cbb | 3889 | find_imps (name, &symbol_names); |
9b2f8581 | 3890 | if (!symbol_names.empty ()) |
c2f4122d | 3891 | add_all_symbol_names_from_pspace (&info, state->search_pspace, |
56d87ef7 | 3892 | symbol_names, FUNCTIONS_DOMAIN); |
40e084e1 | 3893 | else |
a20714ff | 3894 | add_matching_symbols_to_info (name, name_match_type, FUNCTIONS_DOMAIN, |
b5ec771e | 3895 | &info, state->search_pspace); |
40e084e1 KS |
3896 | } |
3897 | ||
3898 | /* Find all symbols named NAME in FILE_SYMTABS, returning debug symbols | |
3899 | in SYMBOLS and minimal symbols in MINSYMS. */ | |
14e91ac5 | 3900 | |
b1ae631a | 3901 | static void |
40e084e1 | 3902 | find_linespec_symbols (struct linespec_state *state, |
2a908241 | 3903 | std::vector<symtab *> *file_symtabs, |
b5ec771e | 3904 | const char *lookup_name, |
a20714ff | 3905 | symbol_name_match_type name_match_type, |
7e41c8db | 3906 | std::vector <block_symbol> *symbols, |
c2a031c5 | 3907 | std::vector<bound_minimal_symbol> *minsyms) |
40e084e1 | 3908 | { |
596dc4ad TT |
3909 | gdb::unique_xmalloc_ptr<char> canon |
3910 | = cp_canonicalize_string_no_typedefs (lookup_name); | |
3911 | if (canon != nullptr) | |
3912 | lookup_name = canon.get (); | |
2f408ecb | 3913 | |
cc81e1c6 DE |
3914 | /* It's important to not call expand_symtabs_matching unnecessarily |
3915 | as it can really slow things down (by unnecessarily expanding | |
3916 | potentially 1000s of symtabs, which when debugging some apps can | |
3917 | cost 100s of seconds). Avoid this to some extent by *first* calling | |
3918 | find_function_symbols, and only if that doesn't find anything | |
3919 | *then* call find_method. This handles two important cases: | |
3920 | 1) break (anonymous namespace)::foo | |
3921 | 2) break class::method where method is in class (and not a baseclass) */ | |
14e91ac5 | 3922 | |
cc81e1c6 | 3923 | find_function_symbols (state, file_symtabs, lookup_name, |
7243d011 | 3924 | name_match_type, symbols, minsyms); |
14e91ac5 | 3925 | |
cc81e1c6 DE |
3926 | /* If we were unable to locate a symbol of the same name, try dividing |
3927 | the name into class and method names and searching the class and its | |
3928 | baseclasses. */ | |
c2a031c5 | 3929 | if (symbols->empty () && minsyms->empty ()) |
40e084e1 | 3930 | { |
2f408ecb | 3931 | std::string klass, method; |
cc81e1c6 | 3932 | const char *last, *p, *scope_op; |
14e91ac5 | 3933 | |
cc81e1c6 DE |
3934 | /* See if we can find a scope operator and break this symbol |
3935 | name into namespaces${SCOPE_OPERATOR}class_name and method_name. */ | |
3936 | scope_op = "::"; | |
3937 | p = find_toplevel_string (lookup_name, scope_op); | |
14e91ac5 | 3938 | |
cc81e1c6 DE |
3939 | last = NULL; |
3940 | while (p != NULL) | |
f8eba3c6 | 3941 | { |
cc81e1c6 DE |
3942 | last = p; |
3943 | p = find_toplevel_string (p + strlen (scope_op), scope_op); | |
f8eba3c6 | 3944 | } |
14e91ac5 | 3945 | |
cc81e1c6 DE |
3946 | /* If no scope operator was found, there is nothing more we can do; |
3947 | we already attempted to lookup the entire name as a symbol | |
3948 | and failed. */ | |
3949 | if (last == NULL) | |
2f408ecb | 3950 | return; |
cc81e1c6 DE |
3951 | |
3952 | /* LOOKUP_NAME points to the class name. | |
3953 | LAST points to the method name. */ | |
2f408ecb | 3954 | klass = std::string (lookup_name, last - lookup_name); |
cc81e1c6 DE |
3955 | |
3956 | /* Skip past the scope operator. */ | |
3957 | last += strlen (scope_op); | |
2f408ecb | 3958 | method = last; |
cc81e1c6 DE |
3959 | |
3960 | /* Find a list of classes named KLASS. */ | |
7e41c8db | 3961 | std::vector<block_symbol> classes |
4dedf84d KS |
3962 | = lookup_prefix_sym (state, file_symtabs, klass.c_str ()); |
3963 | if (!classes.empty ()) | |
cc81e1c6 DE |
3964 | { |
3965 | /* Now locate a list of suitable methods named METHOD. */ | |
a70b8144 | 3966 | try |
cc81e1c6 | 3967 | { |
2f408ecb PA |
3968 | find_method (state, file_symtabs, |
3969 | klass.c_str (), method.c_str (), | |
4dedf84d | 3970 | &classes, symbols, minsyms); |
cc81e1c6 DE |
3971 | } |
3972 | ||
3973 | /* If successful, we're done. If NOT_FOUND_ERROR | |
3974 | was not thrown, rethrow the exception that we did get. */ | |
230d2906 | 3975 | catch (const gdb_exception_error &except) |
7556d4a4 PA |
3976 | { |
3977 | if (except.error != NOT_FOUND_ERROR) | |
eedc3f4f | 3978 | throw; |
7556d4a4 | 3979 | } |
cc81e1c6 | 3980 | } |
2f408ecb | 3981 | } |
14e91ac5 DC |
3982 | } |
3983 | ||
a2459270 PA |
3984 | /* Helper for find_label_symbols. Find all labels that match name |
3985 | NAME in BLOCK. Return all labels that match in FUNCTION_SYMBOLS. | |
3986 | Return the actual function symbol in which the label was found in | |
3987 | LABEL_FUNC_RET. If COMPLETION_MODE is true, then NAME is | |
3988 | interpreted as a label name prefix. Otherwise, only a label named | |
3989 | exactly NAME match. */ | |
3990 | ||
3991 | static void | |
3992 | find_label_symbols_in_block (const struct block *block, | |
3993 | const char *name, struct symbol *fn_sym, | |
3994 | bool completion_mode, | |
7e41c8db KS |
3995 | std::vector<block_symbol> *result, |
3996 | std::vector<block_symbol> *label_funcs_ret) | |
a2459270 PA |
3997 | { |
3998 | if (completion_mode) | |
3999 | { | |
4000 | struct block_iterator iter; | |
4001 | struct symbol *sym; | |
4002 | size_t name_len = strlen (name); | |
4003 | ||
4004 | int (*cmp) (const char *, const char *, size_t); | |
4005 | cmp = case_sensitivity == case_sensitive_on ? strncmp : strncasecmp; | |
4006 | ||
4007 | ALL_BLOCK_SYMBOLS (block, iter, sym) | |
4008 | { | |
c1b5c1eb | 4009 | if (symbol_matches_domain (sym->language (), |
a2459270 | 4010 | SYMBOL_DOMAIN (sym), LABEL_DOMAIN) |
987012b8 | 4011 | && cmp (sym->search_name (), name, name_len) == 0) |
a2459270 | 4012 | { |
7e41c8db KS |
4013 | result->push_back ({sym, block}); |
4014 | label_funcs_ret->push_back ({fn_sym, block}); | |
a2459270 PA |
4015 | } |
4016 | } | |
4017 | } | |
4018 | else | |
4019 | { | |
7e41c8db KS |
4020 | struct block_symbol label_sym |
4021 | = lookup_symbol (name, block, LABEL_DOMAIN, 0); | |
a2459270 | 4022 | |
7e41c8db | 4023 | if (label_sym.symbol != NULL) |
a2459270 | 4024 | { |
7e41c8db KS |
4025 | result->push_back (label_sym); |
4026 | label_funcs_ret->push_back ({fn_sym, block}); | |
a2459270 PA |
4027 | } |
4028 | } | |
4029 | } | |
4030 | ||
3553eadc KS |
4031 | /* Return all labels that match name NAME in FUNCTION_SYMBOLS or NULL |
4032 | if no matches were found. | |
4033 | ||
4034 | Return the actual function symbol in which the label was found in | |
a2459270 PA |
4035 | LABEL_FUNC_RET. If COMPLETION_MODE is true, then NAME is |
4036 | interpreted as a label name prefix. Otherwise, only labels named | |
4037 | exactly NAME match. */ | |
0f5238ed | 4038 | |
7e41c8db KS |
4039 | |
4040 | static std::vector<block_symbol> * | |
40e084e1 | 4041 | find_label_symbols (struct linespec_state *self, |
7e41c8db KS |
4042 | std::vector<block_symbol> *function_symbols, |
4043 | std::vector<block_symbol> *label_funcs_ret, | |
4044 | const char *name, | |
a2459270 | 4045 | bool completion_mode) |
0f5238ed | 4046 | { |
3977b71f | 4047 | const struct block *block; |
40e084e1 | 4048 | struct symbol *fn_sym; |
7e41c8db | 4049 | std::vector<block_symbol> result; |
9ef07c8c | 4050 | |
f8eba3c6 | 4051 | if (function_symbols == NULL) |
9ef07c8c | 4052 | { |
f8eba3c6 | 4053 | set_current_program_space (self->program_space); |
4eeaa230 | 4054 | block = get_current_search_block (); |
f8eba3c6 | 4055 | |
9ef07c8c TT |
4056 | for (; |
4057 | block && !BLOCK_FUNCTION (block); | |
4058 | block = BLOCK_SUPERBLOCK (block)) | |
4059 | ; | |
4060 | if (!block) | |
40e084e1 | 4061 | return NULL; |
f8eba3c6 TT |
4062 | fn_sym = BLOCK_FUNCTION (block); |
4063 | ||
a2459270 PA |
4064 | find_label_symbols_in_block (block, name, fn_sym, completion_mode, |
4065 | &result, label_funcs_ret); | |
40e084e1 KS |
4066 | } |
4067 | else | |
4068 | { | |
7243d011 | 4069 | for (const auto &elt : *function_symbols) |
f8eba3c6 | 4070 | { |
7e41c8db KS |
4071 | fn_sym = elt.symbol; |
4072 | set_current_program_space (SYMTAB_PSPACE (symbol_symtab (fn_sym))); | |
4073 | block = SYMBOL_BLOCK_VALUE (fn_sym); | |
40e084e1 | 4074 | |
7e41c8db | 4075 | find_label_symbols_in_block (block, name, fn_sym, completion_mode, |
a2459270 | 4076 | &result, label_funcs_ret); |
f8eba3c6 | 4077 | } |
40e084e1 | 4078 | } |
f8eba3c6 | 4079 | |
3553eadc | 4080 | if (!result.empty ()) |
7e41c8db | 4081 | return new std::vector<block_symbol> (std::move (result)); |
3553eadc | 4082 | return nullptr; |
40e084e1 | 4083 | } |
f8eba3c6 | 4084 | |
40e084e1 KS |
4085 | \f |
4086 | ||
4087 | /* A helper for create_sals_line_offset that handles the 'list_mode' case. */ | |
4088 | ||
6c5b2ebe | 4089 | static std::vector<symtab_and_line> |
40e084e1 KS |
4090 | decode_digits_list_mode (struct linespec_state *self, |
4091 | linespec_p ls, | |
40e084e1 KS |
4092 | struct symtab_and_line val) |
4093 | { | |
40e084e1 KS |
4094 | gdb_assert (self->list_mode); |
4095 | ||
6c5b2ebe PA |
4096 | std::vector<symtab_and_line> values; |
4097 | ||
2a908241 | 4098 | for (const auto &elt : *ls->file_symtabs) |
40e084e1 KS |
4099 | { |
4100 | /* The logic above should ensure this. */ | |
4101 | gdb_assert (elt != NULL); | |
4102 | ||
4103 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
4104 | ||
4105 | /* Simplistic search just for the list command. */ | |
4106 | val.symtab = find_line_symtab (elt, val.line, NULL, NULL); | |
4107 | if (val.symtab == NULL) | |
4108 | val.symtab = elt; | |
4109 | val.pspace = SYMTAB_PSPACE (elt); | |
4110 | val.pc = 0; | |
5b0e2db4 | 4111 | val.explicit_line = true; |
40e084e1 | 4112 | |
6c5b2ebe | 4113 | add_sal_to_sals (self, &values, &val, NULL, 0); |
f8eba3c6 | 4114 | } |
6c5b2ebe PA |
4115 | |
4116 | return values; | |
40e084e1 | 4117 | } |
f8eba3c6 | 4118 | |
791b7405 AB |
4119 | /* A helper for create_sals_line_offset that iterates over the symtabs |
4120 | associated with LS and returns a vector of corresponding symtab_and_line | |
4121 | structures. */ | |
40e084e1 | 4122 | |
6c5b2ebe | 4123 | static std::vector<symtab_and_line> |
40e084e1 KS |
4124 | decode_digits_ordinary (struct linespec_state *self, |
4125 | linespec_p ls, | |
4126 | int line, | |
40e084e1 KS |
4127 | struct linetable_entry **best_entry) |
4128 | { | |
6c5b2ebe | 4129 | std::vector<symtab_and_line> sals; |
2a908241 | 4130 | for (const auto &elt : *ls->file_symtabs) |
f8eba3c6 | 4131 | { |
67d89901 | 4132 | std::vector<CORE_ADDR> pcs; |
40e084e1 KS |
4133 | |
4134 | /* The logic above should ensure this. */ | |
4135 | gdb_assert (elt != NULL); | |
f8eba3c6 | 4136 | |
40e084e1 | 4137 | set_current_program_space (SYMTAB_PSPACE (elt)); |
f8eba3c6 | 4138 | |
40e084e1 | 4139 | pcs = find_pcs_for_symtab_line (elt, line, best_entry); |
67d89901 | 4140 | for (CORE_ADDR pc : pcs) |
f8eba3c6 | 4141 | { |
51abb421 | 4142 | symtab_and_line sal; |
40e084e1 KS |
4143 | sal.pspace = SYMTAB_PSPACE (elt); |
4144 | sal.symtab = elt; | |
4145 | sal.line = line; | |
5b0e2db4 | 4146 | sal.explicit_line = true; |
40e084e1 | 4147 | sal.pc = pc; |
6c5b2ebe | 4148 | sals.push_back (std::move (sal)); |
f8eba3c6 TT |
4149 | } |
4150 | } | |
6c5b2ebe PA |
4151 | |
4152 | return sals; | |
40e084e1 KS |
4153 | } |
4154 | ||
4155 | \f | |
4156 | ||
4157 | /* Return the line offset represented by VARIABLE. */ | |
4158 | ||
4159 | static struct line_offset | |
4160 | linespec_parse_variable (struct linespec_state *self, const char *variable) | |
4161 | { | |
4162 | int index = 0; | |
4163 | const char *p; | |
4164 | struct line_offset offset = {0, LINE_OFFSET_NONE}; | |
f8eba3c6 | 4165 | |
40e084e1 KS |
4166 | p = (variable[1] == '$') ? variable + 2 : variable + 1; |
4167 | if (*p == '$') | |
4168 | ++p; | |
4169 | while (*p >= '0' && *p <= '9') | |
4170 | ++p; | |
4171 | if (!*p) /* Reached end of token without hitting non-digit. */ | |
f8eba3c6 | 4172 | { |
40e084e1 KS |
4173 | /* We have a value history reference. */ |
4174 | struct value *val_history; | |
f8eba3c6 | 4175 | |
40e084e1 KS |
4176 | sscanf ((variable[1] == '$') ? variable + 2 : variable + 1, "%d", &index); |
4177 | val_history | |
4178 | = access_value_history ((variable[1] == '$') ? -index : index); | |
78134374 | 4179 | if (value_type (val_history)->code () != TYPE_CODE_INT) |
40e084e1 KS |
4180 | error (_("History values used in line " |
4181 | "specs must have integer values.")); | |
4182 | offset.offset = value_as_long (val_history); | |
4183 | } | |
4184 | else | |
4185 | { | |
4186 | /* Not all digits -- may be user variable/function or a | |
4187 | convenience variable. */ | |
4188 | LONGEST valx; | |
4189 | struct internalvar *ivar; | |
4190 | ||
4191 | /* Try it as a convenience variable. If it is not a convenience | |
4192 | variable, return and allow normal symbol lookup to occur. */ | |
4193 | ivar = lookup_only_internalvar (variable + 1); | |
4194 | if (ivar == NULL) | |
4195 | /* No internal variable with that name. Mark the offset | |
4196 | as unknown to allow the name to be looked up as a symbol. */ | |
4197 | offset.sign = LINE_OFFSET_UNKNOWN; | |
4198 | else | |
4199 | { | |
4200 | /* We found a valid variable name. If it is not an integer, | |
4201 | throw an error. */ | |
4202 | if (!get_internalvar_integer (ivar, &valx)) | |
4203 | error (_("Convenience variables used in line " | |
4204 | "specs must have integer values.")); | |
4205 | else | |
4206 | offset.offset = valx; | |
4207 | } | |
f8eba3c6 TT |
4208 | } |
4209 | ||
40e084e1 | 4210 | return offset; |
f8eba3c6 | 4211 | } |
40e084e1 | 4212 | \f |
f8eba3c6 | 4213 | |
40e084e1 | 4214 | /* We've found a minimal symbol MSYMBOL in OBJFILE to associate with our |
6e22494e JK |
4215 | linespec; return the SAL in RESULT. This function should return SALs |
4216 | matching those from find_function_start_sal, otherwise false | |
4217 | multiple-locations breakpoints could be placed. */ | |
f8eba3c6 TT |
4218 | |
4219 | static void | |
4220 | minsym_found (struct linespec_state *self, struct objfile *objfile, | |
4221 | struct minimal_symbol *msymbol, | |
6c5b2ebe | 4222 | std::vector<symtab_and_line> *result) |
f8eba3c6 | 4223 | { |
3467ec66 | 4224 | bool want_start_sal; |
f8eba3c6 | 4225 | |
4024cf2b | 4226 | CORE_ADDR func_addr; |
3467ec66 PA |
4227 | bool is_function = msymbol_is_function (objfile, msymbol, &func_addr); |
4228 | ||
4229 | if (is_function) | |
4230 | { | |
c9d95fa3 | 4231 | const char *msym_name = msymbol->linkage_name (); |
3467ec66 | 4232 | |
f50776aa PA |
4233 | if (MSYMBOL_TYPE (msymbol) == mst_text_gnu_ifunc |
4234 | || MSYMBOL_TYPE (msymbol) == mst_data_gnu_ifunc) | |
3467ec66 PA |
4235 | want_start_sal = gnu_ifunc_resolve_name (msym_name, &func_addr); |
4236 | else | |
4237 | want_start_sal = true; | |
4238 | } | |
4239 | ||
4240 | symtab_and_line sal; | |
4241 | ||
4242 | if (is_function && want_start_sal) | |
42ddae10 | 4243 | sal = find_function_start_sal (func_addr, NULL, self->funfirstline); |
e5f25bc5 PA |
4244 | else |
4245 | { | |
4246 | sal.objfile = objfile; | |
3467ec66 PA |
4247 | sal.msymbol = msymbol; |
4248 | /* Store func_addr, not the minsym's address in case this was an | |
4249 | ifunc that hasn't been resolved yet. */ | |
4250 | if (is_function) | |
4251 | sal.pc = func_addr; | |
4252 | else | |
4253 | sal.pc = MSYMBOL_VALUE_ADDRESS (objfile, msymbol); | |
e5f25bc5 | 4254 | sal.pspace = current_program_space; |
6e22494e | 4255 | } |
f8eba3c6 | 4256 | |
ebbc3a7d | 4257 | sal.section = msymbol->obj_section (objfile); |
6b05c8bd | 4258 | |
07fea4b4 | 4259 | if (maybe_add_address (self->addr_set, objfile->pspace, sal.pc)) |
c9d95fa3 | 4260 | add_sal_to_sals (self, result, &sal, msymbol->natural_name (), 0); |
f8eba3c6 TT |
4261 | } |
4262 | ||
41c1efc6 TT |
4263 | /* Helper for search_minsyms_for_name that adds the symbol to the |
4264 | result. */ | |
39b856a4 TT |
4265 | |
4266 | static void | |
41c1efc6 TT |
4267 | add_minsym (struct minimal_symbol *minsym, struct objfile *objfile, |
4268 | struct symtab *symtab, int list_mode, | |
4269 | std::vector<struct bound_minimal_symbol> *msyms) | |
39b856a4 | 4270 | { |
41c1efc6 | 4271 | if (symtab != NULL) |
87186c6a | 4272 | { |
4024cf2b PA |
4273 | /* We're looking for a label for which we don't have debug |
4274 | info. */ | |
4275 | CORE_ADDR func_addr; | |
41c1efc6 | 4276 | if (msymbol_is_function (objfile, minsym, &func_addr)) |
4024cf2b PA |
4277 | { |
4278 | symtab_and_line sal = find_pc_sect_line (func_addr, NULL, 0); | |
87186c6a | 4279 | |
41c1efc6 | 4280 | if (symtab != sal.symtab) |
4024cf2b PA |
4281 | return; |
4282 | } | |
87186c6a MMN |
4283 | } |
4284 | ||
4024cf2b | 4285 | /* Exclude data symbols when looking for breakpoint locations. */ |
41c1efc6 | 4286 | if (!list_mode && !msymbol_is_function (objfile, minsym)) |
4024cf2b | 4287 | return; |
095bcf5e | 4288 | |
41c1efc6 TT |
4289 | struct bound_minimal_symbol mo = {minsym, objfile}; |
4290 | msyms->push_back (mo); | |
ca31ab1d | 4291 | return; |
f8eba3c6 TT |
4292 | } |
4293 | ||
87186c6a | 4294 | /* Search for minimal symbols called NAME. If SEARCH_PSPACE |
f8eba3c6 | 4295 | is not NULL, the search is restricted to just that program |
87186c6a MMN |
4296 | space. |
4297 | ||
4298 | If SYMTAB is NULL, search all objfiles, otherwise | |
4299 | restrict results to the given SYMTAB. */ | |
f8eba3c6 TT |
4300 | |
4301 | static void | |
b5ec771e PA |
4302 | search_minsyms_for_name (struct collect_info *info, |
4303 | const lookup_name_info &name, | |
87186c6a MMN |
4304 | struct program_space *search_pspace, |
4305 | struct symtab *symtab) | |
f8eba3c6 | 4306 | { |
41c1efc6 | 4307 | std::vector<struct bound_minimal_symbol> minsyms; |
f8eba3c6 | 4308 | |
87186c6a MMN |
4309 | if (symtab == NULL) |
4310 | { | |
94c93c35 TT |
4311 | for (struct program_space *pspace : program_spaces) |
4312 | { | |
4313 | if (search_pspace != NULL && search_pspace != pspace) | |
4314 | continue; | |
4315 | if (pspace->executing_startup) | |
4316 | continue; | |
39b856a4 | 4317 | |
94c93c35 | 4318 | set_current_program_space (pspace); |
87186c6a | 4319 | |
94c93c35 TT |
4320 | for (objfile *objfile : current_program_space->objfiles ()) |
4321 | { | |
4322 | iterate_over_minimal_symbols (objfile, name, | |
4323 | [&] (struct minimal_symbol *msym) | |
4324 | { | |
4325 | add_minsym (msym, objfile, nullptr, | |
4326 | info->state->list_mode, | |
4327 | &minsyms); | |
4328 | return false; | |
4329 | }); | |
4330 | } | |
4331 | } | |
87186c6a MMN |
4332 | } |
4333 | else | |
f8eba3c6 | 4334 | { |
87186c6a MMN |
4335 | if (search_pspace == NULL || SYMTAB_PSPACE (symtab) == search_pspace) |
4336 | { | |
4337 | set_current_program_space (SYMTAB_PSPACE (symtab)); | |
41c1efc6 TT |
4338 | iterate_over_minimal_symbols |
4339 | (SYMTAB_OBJFILE (symtab), name, | |
4340 | [&] (struct minimal_symbol *msym) | |
4341 | { | |
4342 | add_minsym (msym, SYMTAB_OBJFILE (symtab), symtab, | |
4343 | info->state->list_mode, &minsyms); | |
ca31ab1d | 4344 | return false; |
41c1efc6 | 4345 | }); |
87186c6a | 4346 | } |
9ef07c8c | 4347 | } |
39b856a4 | 4348 | |
77f2120b PA |
4349 | /* Return true if TYPE is a static symbol. */ |
4350 | auto msymbol_type_is_static = [] (enum minimal_symbol_type type) | |
41c1efc6 | 4351 | { |
77f2120b PA |
4352 | switch (type) |
4353 | { | |
4354 | case mst_file_text: | |
4355 | case mst_file_data: | |
4356 | case mst_file_bss: | |
4357 | return true; | |
4358 | default: | |
4359 | return false; | |
4360 | } | |
4361 | }; | |
39b856a4 | 4362 | |
77f2120b PA |
4363 | /* Add minsyms to the result set, but filter out trampoline symbols |
4364 | if we also found extern symbols with the same name. I.e., don't | |
4365 | set a breakpoint on both '<foo@plt>' and 'foo', assuming that | |
4366 | 'foo' is the symbol that the plt resolves to. */ | |
4367 | for (const bound_minimal_symbol &item : minsyms) | |
4368 | { | |
4369 | bool skip = false; | |
4370 | if (MSYMBOL_TYPE (item.minsym) == mst_solib_trampoline) | |
4371 | { | |
4372 | for (const bound_minimal_symbol &item2 : minsyms) | |
4373 | { | |
4374 | if (&item2 == &item) | |
4375 | continue; | |
39b856a4 | 4376 | |
77f2120b PA |
4377 | /* Trampoline symbols can only jump to exported |
4378 | symbols. */ | |
4379 | if (msymbol_type_is_static (MSYMBOL_TYPE (item2.minsym))) | |
4380 | continue; | |
41c1efc6 | 4381 | |
77f2120b PA |
4382 | if (strcmp (item.minsym->linkage_name (), |
4383 | item2.minsym->linkage_name ()) != 0) | |
4384 | continue; | |
41c1efc6 | 4385 | |
77f2120b PA |
4386 | /* Found a global minsym with the same name as the |
4387 | trampoline. Don't create a location for this | |
4388 | trampoline. */ | |
4389 | skip = true; | |
4390 | break; | |
4391 | } | |
41c1efc6 | 4392 | } |
77f2120b PA |
4393 | |
4394 | if (!skip) | |
4395 | info->result.minimal_symbols->push_back (item); | |
41c1efc6 | 4396 | } |
f8eba3c6 TT |
4397 | } |
4398 | ||
4399 | /* A helper function to add all symbols matching NAME to INFO. If | |
4400 | PSPACE is not NULL, the search is restricted to just that program | |
4401 | space. */ | |
0f5238ed | 4402 | |
f8eba3c6 TT |
4403 | static void |
4404 | add_matching_symbols_to_info (const char *name, | |
b5ec771e | 4405 | symbol_name_match_type name_match_type, |
56d87ef7 | 4406 | enum search_domain search_domain, |
f8eba3c6 TT |
4407 | struct collect_info *info, |
4408 | struct program_space *pspace) | |
4409 | { | |
b5ec771e PA |
4410 | lookup_name_info lookup_name (name, name_match_type); |
4411 | ||
2a908241 | 4412 | for (const auto &elt : *info->file_symtabs) |
f8eba3c6 | 4413 | { |
2a908241 | 4414 | if (elt == nullptr) |
f8eba3c6 | 4415 | { |
b5ec771e | 4416 | iterate_over_all_matching_symtabs (info->state, lookup_name, |
56d87ef7 | 4417 | VAR_DOMAIN, search_domain, |
7e41c8db KS |
4418 | pspace, true, |
4419 | [&] (block_symbol *bsym) | |
4420 | { return info->add_symbol (bsym); }); | |
b5ec771e | 4421 | search_minsyms_for_name (info, lookup_name, pspace, NULL); |
f8eba3c6 TT |
4422 | } |
4423 | else if (pspace == NULL || pspace == SYMTAB_PSPACE (elt)) | |
4424 | { | |
7243d011 | 4425 | int prev_len = info->result.symbols->size (); |
87186c6a | 4426 | |
f8eba3c6 TT |
4427 | /* Program spaces that are executing startup should have |
4428 | been filtered out earlier. */ | |
4429 | gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup); | |
4430 | set_current_program_space (SYMTAB_PSPACE (elt)); | |
b5ec771e | 4431 | iterate_over_file_blocks (elt, lookup_name, VAR_DOMAIN, |
7e41c8db KS |
4432 | [&] (block_symbol *bsym) |
4433 | { return info->add_symbol (bsym); }); | |
87186c6a MMN |
4434 | |
4435 | /* If no new symbols were found in this iteration and this symtab | |
4436 | is in assembler, we might actually be looking for a label for | |
4437 | which we don't have debug info. Check for a minimal symbol in | |
4438 | this case. */ | |
7243d011 | 4439 | if (prev_len == info->result.symbols->size () |
87186c6a | 4440 | && elt->language == language_asm) |
b5ec771e | 4441 | search_minsyms_for_name (info, lookup_name, pspace, elt); |
f8eba3c6 TT |
4442 | } |
4443 | } | |
0f5238ed TT |
4444 | } |
4445 | ||
14e91ac5 DC |
4446 | \f |
4447 | ||
413dad4d DC |
4448 | /* Now come some functions that are called from multiple places within |
4449 | decode_line_1. */ | |
4450 | ||
f8eba3c6 TT |
4451 | static int |
4452 | symbol_to_sal (struct symtab_and_line *result, | |
4453 | int funfirstline, struct symbol *sym) | |
413dad4d | 4454 | { |
413dad4d | 4455 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) |
50641945 | 4456 | { |
f8eba3c6 TT |
4457 | *result = find_function_start_sal (sym, funfirstline); |
4458 | return 1; | |
50641945 | 4459 | } |
413dad4d DC |
4460 | else |
4461 | { | |
62853458 | 4462 | if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0) |
413dad4d | 4463 | { |
51abb421 | 4464 | *result = {}; |
08be3fe3 | 4465 | result->symtab = symbol_symtab (sym); |
06871ae8 | 4466 | result->symbol = sym; |
f8eba3c6 TT |
4467 | result->line = SYMBOL_LINE (sym); |
4468 | result->pc = SYMBOL_VALUE_ADDRESS (sym); | |
08be3fe3 | 4469 | result->pspace = SYMTAB_PSPACE (result->symtab); |
f8eba3c6 TT |
4470 | result->explicit_pc = 1; |
4471 | return 1; | |
413dad4d | 4472 | } |
62853458 | 4473 | else if (funfirstline) |
dcf9f4ab | 4474 | { |
f8eba3c6 | 4475 | /* Nothing. */ |
dcf9f4ab | 4476 | } |
62853458 TT |
4477 | else if (SYMBOL_LINE (sym) != 0) |
4478 | { | |
4479 | /* We know its line number. */ | |
51abb421 | 4480 | *result = {}; |
08be3fe3 | 4481 | result->symtab = symbol_symtab (sym); |
06871ae8 | 4482 | result->symbol = sym; |
f8eba3c6 | 4483 | result->line = SYMBOL_LINE (sym); |
e5f25bc5 | 4484 | result->pc = SYMBOL_VALUE_ADDRESS (sym); |
08be3fe3 | 4485 | result->pspace = SYMTAB_PSPACE (result->symtab); |
f8eba3c6 | 4486 | return 1; |
62853458 | 4487 | } |
413dad4d | 4488 | } |
f8eba3c6 TT |
4489 | |
4490 | return 0; | |
413dad4d | 4491 | } |
50641945 | 4492 | |
16e802b9 | 4493 | linespec_result::~linespec_result () |
f8eba3c6 | 4494 | { |
6c5b2ebe PA |
4495 | for (linespec_sals &lsal : lsals) |
4496 | xfree (lsal.canonical); | |
7efd8fc2 | 4497 | } |
87f0e720 KS |
4498 | |
4499 | /* Return the quote characters permitted by the linespec parser. */ | |
4500 | ||
4501 | const char * | |
4502 | get_gdb_linespec_parser_quote_characters (void) | |
4503 | { | |
4504 | return linespec_quote_characters; | |
4505 | } |