1 /* Parser for linespec for the GNU debugger, GDB.
3 Copyright (C) 1986-2017 Free Software Foundation, Inc.
5 This file is part of GDB.
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
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
29 #include "completer.h"
31 #include "cp-support.h"
32 #include "parser-defs.h"
34 #include "objc-lang.h"
38 #include "mi/mi-cmds.h"
40 #include "arch-utils.h"
42 #include "cli/cli-utils.h"
43 #include "filenames.h"
47 #include "common/function-view.h"
48 #include "common/def-vector.h"
50 /* An enumeration of the various things a user might attempt to
51 complete for a linespec location. */
53 enum class linespec_complete_what
55 /* Nothing, no possible completion. */
58 /* A function/method name. Due to ambiguity between
64 this can also indicate a source filename, iff we haven't seen a
65 separate source filename component, as in "b source.c:function". */
68 /* A label symbol. E.g., break file.c:function:LABEL. */
71 /* An expression. E.g., "break foo if EXPR", or "break *EXPR". */
74 /* A linespec keyword ("if"/"thread"/"task").
75 E.g., "break func threa<tab>". */
79 typedef struct symbol *symbolp;
82 typedef struct type *typep;
85 /* An address entry is used to ensure that any given location is only
86 added to the result a single time. It holds an address and the
87 program space from which the address came. */
91 struct program_space *pspace;
95 typedef struct bound_minimal_symbol bound_minimal_symbol_d;
97 DEF_VEC_O (bound_minimal_symbol_d);
99 /* A linespec. Elements of this structure are filled in by a parser
100 (either parse_linespec or some other function). The structure is
101 then converted into SALs by convert_linespec_to_sals. */
105 /* An explicit location describing the SaLs. */
106 struct explicit_location explicit_loc;
108 /* The list of symtabs to search to which to limit the search. May not
109 be NULL. If explicit.SOURCE_FILENAME is NULL (no user-specified
110 filename), FILE_SYMTABS should contain one single NULL member. This
111 will cause the code to use the default symtab. */
112 VEC (symtab_ptr) *file_symtabs;
114 /* A list of matching function symbols and minimal symbols. Both lists
115 may be NULL if no matching symbols were found. */
116 VEC (symbolp) *function_symbols;
117 VEC (bound_minimal_symbol_d) *minimal_symbols;
119 /* A structure of matching label symbols and the corresponding
120 function symbol in which the label was found. Both may be NULL
121 or both must be non-NULL. */
124 VEC (symbolp) *label_symbols;
125 VEC (symbolp) *function_symbols;
128 typedef struct linespec *linespec_p;
130 /* A canonical linespec represented as a symtab-related string.
132 Each entry represents the "SYMTAB:SUFFIX" linespec string.
133 SYMTAB can be converted for example by symtab_to_fullname or
134 symtab_to_filename_for_display as needed. */
136 struct linespec_canonical_name
138 /* Remaining text part of the linespec string. */
141 /* If NULL then SUFFIX is the whole linespec string. */
142 struct symtab *symtab;
145 /* An instance of this is used to keep all state while linespec
146 operates. This instance is passed around as a 'this' pointer to
147 the various implementation methods. */
149 struct linespec_state
151 /* The language in use during linespec processing. */
152 const struct language_defn *language;
154 /* The program space as seen when the module was entered. */
155 struct program_space *program_space;
157 /* If not NULL, the search is restricted to just this program
159 struct program_space *search_pspace;
161 /* The default symtab to use, if no other symtab is specified. */
162 struct symtab *default_symtab;
164 /* The default line to use. */
167 /* The 'funfirstline' value that was passed in to decode_line_1 or
171 /* Nonzero if we are running in 'list' mode; see decode_line_list. */
174 /* The 'canonical' value passed to decode_line_full, or NULL. */
175 struct linespec_result *canonical;
177 /* Canonical strings that mirror the std::vector<symtab_and_line> result. */
178 struct linespec_canonical_name *canonical_names;
180 /* This is a set of address_entry objects which is used to prevent
181 duplicate symbols from being entered into the result. */
184 /* Are we building a linespec? */
188 /* This is a helper object that is used when collecting symbols into a
193 /* The linespec object in use. */
194 struct linespec_state *state;
196 /* A list of symtabs to which to restrict matches. */
197 VEC (symtab_ptr) *file_symtabs;
199 /* The result being accumulated. */
202 VEC (symbolp) *symbols;
203 VEC (bound_minimal_symbol_d) *minimal_symbols;
206 /* Possibly add a symbol to the results. */
207 bool add_symbol (symbol *sym);
211 collect_info::add_symbol (symbol *sym)
213 /* In list mode, add all matching symbols, regardless of class.
214 This allows the user to type "list a_global_variable". */
215 if (SYMBOL_CLASS (sym) == LOC_BLOCK || this->state->list_mode)
216 VEC_safe_push (symbolp, this->result.symbols, sym);
218 /* Continue iterating. */
229 /* A colon "separator" */
241 /* EOI (end of input) */
247 typedef enum ls_token_type linespec_token_type;
249 /* List of keywords. This is NULL-terminated so that it can be used
250 as enum completer. */
251 const char * const linespec_keywords[] = { "if", "thread", "task", NULL };
252 #define IF_KEYWORD_INDEX 0
254 /* A token of the linespec lexer */
258 /* The type of the token */
259 linespec_token_type type;
261 /* Data for the token */
264 /* A string, given as a stoken */
265 struct stoken string;
271 typedef struct ls_token linespec_token;
273 #define LS_TOKEN_STOKEN(TOK) (TOK).data.string
274 #define LS_TOKEN_KEYWORD(TOK) (TOK).data.keyword
276 /* An instance of the linespec parser. */
280 /* Lexer internal data */
283 /* Save head of input stream. */
284 const char *saved_arg;
286 /* Head of the input stream. */
288 #define PARSER_STREAM(P) ((P)->lexer.stream)
290 /* The current token. */
291 linespec_token current;
294 /* Is the entire linespec quote-enclosed? */
295 int is_quote_enclosed;
297 /* The state of the parse. */
298 struct linespec_state state;
299 #define PARSER_STATE(PPTR) (&(PPTR)->state)
301 /* The result of the parse. */
302 struct linespec result;
303 #define PARSER_RESULT(PPTR) (&(PPTR)->result)
305 /* What the parser believes the current word point should complete
307 linespec_complete_what complete_what;
309 /* The completion word point. The parser advances this as it skips
310 tokens. At some point the input string will end or parsing will
311 fail, and then we attempt completion at the captured completion
312 word point, interpreting the string at completion_word as
314 const char *completion_word;
316 /* If the current token was a quoted string, then this is the
317 quoting character (either " or '). */
318 int completion_quote_char;
320 /* If the current token was a quoted string, then this points at the
321 end of the quoted string. */
322 const char *completion_quote_end;
324 /* If parsing for completion, then this points at the completion
325 tracker. Otherwise, this is NULL. */
326 struct completion_tracker *completion_tracker;
328 typedef struct ls_parser linespec_parser;
330 /* A convenience macro for accessing the explicit location result of
332 #define PARSER_EXPLICIT(PPTR) (&PARSER_RESULT ((PPTR))->explicit_loc)
334 /* Prototypes for local functions. */
336 static void iterate_over_file_blocks
337 (struct symtab *symtab, const lookup_name_info &name,
339 gdb::function_view<symbol_found_callback_ftype> callback);
341 static void initialize_defaults (struct symtab **default_symtab,
344 CORE_ADDR linespec_expression_to_pc (const char **exp_ptr);
346 static std::vector<symtab_and_line> decode_objc (struct linespec_state *self,
350 static VEC (symtab_ptr) *symtabs_from_filename (const char *,
351 struct program_space *pspace);
353 static VEC (symbolp) *find_label_symbols (struct linespec_state *self,
354 VEC (symbolp) *function_symbols,
355 VEC (symbolp) **label_funcs_ret,
357 bool completion_mode = false);
359 static void find_linespec_symbols (struct linespec_state *self,
360 VEC (symtab_ptr) *file_symtabs,
362 VEC (symbolp) **symbols,
363 VEC (bound_minimal_symbol_d) **minsyms);
365 static struct line_offset
366 linespec_parse_variable (struct linespec_state *self,
367 const char *variable);
369 static int symbol_to_sal (struct symtab_and_line *result,
370 int funfirstline, struct symbol *sym);
372 static void add_matching_symbols_to_info (const char *name,
373 symbol_name_match_type name_match_type,
374 enum search_domain search_domain,
375 struct collect_info *info,
376 struct program_space *pspace);
378 static void add_all_symbol_names_from_pspace (struct collect_info *info,
379 struct program_space *pspace,
380 VEC (const_char_ptr) *names,
381 enum search_domain search_domain);
383 static VEC (symtab_ptr) *
384 collect_symtabs_from_filename (const char *file,
385 struct program_space *pspace);
387 static std::vector<symtab_and_line> decode_digits_ordinary
388 (struct linespec_state *self,
391 linetable_entry **best_entry);
393 static std::vector<symtab_and_line> decode_digits_list_mode
394 (struct linespec_state *self,
396 struct symtab_and_line val);
398 static void minsym_found (struct linespec_state *self, struct objfile *objfile,
399 struct minimal_symbol *msymbol,
400 std::vector<symtab_and_line> *result);
402 static int compare_symbols (const void *a, const void *b);
404 static int compare_msymbols (const void *a, const void *b);
406 /* Permitted quote characters for the parser. This is different from the
407 completer's quote characters to allow backward compatibility with the
409 static const char *const linespec_quote_characters = "\"\'";
411 /* Lexer functions. */
413 /* Lex a number from the input in PARSER. This only supports
416 Return true if input is decimal numbers. Return false if not. */
419 linespec_lexer_lex_number (linespec_parser *parser, linespec_token *tokenp)
421 tokenp->type = LSTOKEN_NUMBER;
422 LS_TOKEN_STOKEN (*tokenp).length = 0;
423 LS_TOKEN_STOKEN (*tokenp).ptr = PARSER_STREAM (parser);
425 /* Keep any sign at the start of the stream. */
426 if (*PARSER_STREAM (parser) == '+' || *PARSER_STREAM (parser) == '-')
428 ++LS_TOKEN_STOKEN (*tokenp).length;
429 ++(PARSER_STREAM (parser));
432 while (isdigit (*PARSER_STREAM (parser)))
434 ++LS_TOKEN_STOKEN (*tokenp).length;
435 ++(PARSER_STREAM (parser));
438 /* If the next character in the input buffer is not a space, comma,
439 quote, or colon, this input does not represent a number. */
440 if (*PARSER_STREAM (parser) != '\0'
441 && !isspace (*PARSER_STREAM (parser)) && *PARSER_STREAM (parser) != ','
442 && *PARSER_STREAM (parser) != ':'
443 && !strchr (linespec_quote_characters, *PARSER_STREAM (parser)))
445 PARSER_STREAM (parser) = LS_TOKEN_STOKEN (*tokenp).ptr;
452 /* See linespec.h. */
455 linespec_lexer_lex_keyword (const char *p)
461 for (i = 0; linespec_keywords[i] != NULL; ++i)
463 int len = strlen (linespec_keywords[i]);
465 /* If P begins with one of the keywords and the next
466 character is whitespace, we may have found a keyword.
467 It is only a keyword if it is not followed by another
469 if (strncmp (p, linespec_keywords[i], len) == 0
474 /* Special case: "if" ALWAYS stops the lexer, since it
475 is not possible to predict what is going to appear in
476 the condition, which can only be parsed after SaLs have
478 if (i != IF_KEYWORD_INDEX)
482 for (j = 0; linespec_keywords[j] != NULL; ++j)
484 int nextlen = strlen (linespec_keywords[j]);
486 if (strncmp (p, linespec_keywords[j], nextlen) == 0
487 && isspace (p[nextlen]))
492 return linespec_keywords[i];
500 /* See description in linespec.h. */
503 is_ada_operator (const char *string)
505 const struct ada_opname_map *mapping;
507 for (mapping = ada_opname_table;
508 mapping->encoded != NULL
509 && !startswith (string, mapping->decoded); ++mapping)
512 return mapping->decoded == NULL ? 0 : strlen (mapping->decoded);
515 /* Find QUOTE_CHAR in STRING, accounting for the ':' terminal. Return
516 the location of QUOTE_CHAR, or NULL if not found. */
519 skip_quote_char (const char *string, char quote_char)
521 const char *p, *last;
523 p = last = find_toplevel_char (string, quote_char);
524 while (p && *p != '\0' && *p != ':')
526 p = find_toplevel_char (p, quote_char);
534 /* Make a writable copy of the string given in TOKEN, trimming
535 any trailing whitespace. */
538 copy_token_string (linespec_token token)
542 if (token.type == LSTOKEN_KEYWORD)
543 return xstrdup (LS_TOKEN_KEYWORD (token));
545 str = savestring (LS_TOKEN_STOKEN (token).ptr,
546 LS_TOKEN_STOKEN (token).length);
547 s = remove_trailing_whitespace (str, str + LS_TOKEN_STOKEN (token).length);
553 /* Does P represent the end of a quote-enclosed linespec? */
556 is_closing_quote_enclosed (const char *p)
558 if (strchr (linespec_quote_characters, *p))
560 p = skip_spaces ((char *) p);
561 return (*p == '\0' || linespec_lexer_lex_keyword (p));
564 /* Find the end of the parameter list that starts with *INPUT.
565 This helper function assists with lexing string segments
566 which might contain valid (non-terminating) commas. */
569 find_parameter_list_end (const char *input)
571 char end_char, start_char;
576 if (start_char == '(')
578 else if (start_char == '<')
587 if (*p == start_char)
589 else if (*p == end_char)
603 /* If the [STRING, STRING_LEN) string ends with what looks like a
604 keyword, return the keyword start offset in STRING. Return -1
608 string_find_incomplete_keyword_at_end (const char * const *keywords,
609 const char *string, size_t string_len)
611 const char *end = string + string_len;
614 while (p > string && *p != ' ')
619 size_t len = end - p;
620 for (size_t i = 0; keywords[i] != NULL; ++i)
621 if (strncmp (keywords[i], p, len) == 0)
628 /* Lex a string from the input in PARSER. */
630 static linespec_token
631 linespec_lexer_lex_string (linespec_parser *parser)
633 linespec_token token;
634 const char *start = PARSER_STREAM (parser);
636 token.type = LSTOKEN_STRING;
638 /* If the input stream starts with a quote character, skip to the next
639 quote character, regardless of the content. */
640 if (strchr (linespec_quote_characters, *PARSER_STREAM (parser)))
643 char quote_char = *PARSER_STREAM (parser);
645 /* Special case: Ada operators. */
646 if (PARSER_STATE (parser)->language->la_language == language_ada
647 && quote_char == '\"')
649 int len = is_ada_operator (PARSER_STREAM (parser));
653 /* The input is an Ada operator. Return the quoted string
655 LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser);
656 LS_TOKEN_STOKEN (token).length = len;
657 PARSER_STREAM (parser) += len;
661 /* The input does not represent an Ada operator -- fall through
662 to normal quoted string handling. */
665 /* Skip past the beginning quote. */
666 ++(PARSER_STREAM (parser));
668 /* Mark the start of the string. */
669 LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser);
671 /* Skip to the ending quote. */
672 end = skip_quote_char (PARSER_STREAM (parser), quote_char);
674 /* This helps the completer mode decide whether we have a
676 parser->completion_quote_char = quote_char;
677 parser->completion_quote_end = end;
679 /* Error if the input did not terminate properly, unless in
683 if (parser->completion_tracker == NULL)
684 error (_("unmatched quote"));
686 /* In completion mode, we'll try to complete the incomplete
688 token.type = LSTOKEN_STRING;
689 while (*PARSER_STREAM (parser) != '\0')
690 PARSER_STREAM (parser)++;
691 LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - 1 - start;
695 /* Skip over the ending quote and mark the length of the string. */
696 PARSER_STREAM (parser) = (char *) ++end;
697 LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - 2 - start;
704 /* Otherwise, only identifier characters are permitted.
705 Spaces are the exception. In general, we keep spaces,
706 but only if the next characters in the input do not resolve
707 to one of the keywords.
709 This allows users to forgo quoting CV-qualifiers, template arguments,
710 and similar common language constructs. */
714 if (isspace (*PARSER_STREAM (parser)))
716 p = skip_spaces (PARSER_STREAM (parser));
717 /* When we get here we know we've found something followed by
718 a space (we skip over parens and templates below).
719 So if we find a keyword now, we know it is a keyword and not,
720 say, a function name. */
721 if (linespec_lexer_lex_keyword (p) != NULL)
723 LS_TOKEN_STOKEN (token).ptr = start;
724 LS_TOKEN_STOKEN (token).length
725 = PARSER_STREAM (parser) - start;
729 /* Advance past the whitespace. */
730 PARSER_STREAM (parser) = p;
733 /* If the next character is EOI or (single) ':', the
734 string is complete; return the token. */
735 if (*PARSER_STREAM (parser) == 0)
737 LS_TOKEN_STOKEN (token).ptr = start;
738 LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start;
741 else if (PARSER_STREAM (parser)[0] == ':')
743 /* Do not tokenize the C++ scope operator. */
744 if (PARSER_STREAM (parser)[1] == ':')
745 ++(PARSER_STREAM (parser));
747 /* Do not tokenify if the input length so far is one
748 (i.e, a single-letter drive name) and the next character
749 is a directory separator. This allows Windows-style
750 paths to be recognized as filenames without quoting it. */
751 else if ((PARSER_STREAM (parser) - start) != 1
752 || !IS_DIR_SEPARATOR (PARSER_STREAM (parser)[1]))
754 LS_TOKEN_STOKEN (token).ptr = start;
755 LS_TOKEN_STOKEN (token).length
756 = PARSER_STREAM (parser) - start;
760 /* Special case: permit quote-enclosed linespecs. */
761 else if (parser->is_quote_enclosed
762 && strchr (linespec_quote_characters,
763 *PARSER_STREAM (parser))
764 && is_closing_quote_enclosed (PARSER_STREAM (parser)))
766 LS_TOKEN_STOKEN (token).ptr = start;
767 LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start;
770 /* Because commas may terminate a linespec and appear in
771 the middle of valid string input, special cases for
772 '<' and '(' are necessary. */
773 else if (*PARSER_STREAM (parser) == '<'
774 || *PARSER_STREAM (parser) == '(')
776 /* Don't interpret 'operator<' / 'operator<<' as a
777 template parameter list though. */
778 if (*PARSER_STREAM (parser) == '<'
779 && (PARSER_STATE (parser)->language->la_language
781 && (PARSER_STREAM (parser) - start) >= CP_OPERATOR_LEN)
783 const char *p = PARSER_STREAM (parser);
785 while (p > start && isspace (p[-1]))
787 if (p - start >= CP_OPERATOR_LEN)
789 p -= CP_OPERATOR_LEN;
790 if (strncmp (p, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0
792 || !(isalnum (p[-1]) || p[-1] == '_')))
794 /* This is an operator name. Keep going. */
795 ++(PARSER_STREAM (parser));
796 if (*PARSER_STREAM (parser) == '<')
797 ++(PARSER_STREAM (parser));
803 const char *p = find_parameter_list_end (PARSER_STREAM (parser));
804 PARSER_STREAM (parser) = p;
806 /* Don't loop around to the normal \0 case above because
807 we don't want to misinterpret a potential keyword at
808 the end of the token when the string isn't
809 "()<>"-balanced. This handles "b
810 function(thread<tab>" in completion mode. */
813 LS_TOKEN_STOKEN (token).ptr = start;
814 LS_TOKEN_STOKEN (token).length
815 = PARSER_STREAM (parser) - start;
821 /* Commas are terminators, but not if they are part of an
823 else if (*PARSER_STREAM (parser) == ',')
825 if ((PARSER_STATE (parser)->language->la_language
827 && (PARSER_STREAM (parser) - start) > CP_OPERATOR_LEN)
829 const char *p = strstr (start, CP_OPERATOR_STR);
831 if (p != NULL && is_operator_name (p))
833 /* This is an operator name. Keep going. */
834 ++(PARSER_STREAM (parser));
839 /* Comma terminates the string. */
840 LS_TOKEN_STOKEN (token).ptr = start;
841 LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start;
845 /* Advance the stream. */
846 ++(PARSER_STREAM (parser));
853 /* Lex a single linespec token from PARSER. */
855 static linespec_token
856 linespec_lexer_lex_one (linespec_parser *parser)
860 if (parser->lexer.current.type == LSTOKEN_CONSUMED)
862 /* Skip any whitespace. */
863 PARSER_STREAM (parser) = skip_spaces (PARSER_STREAM (parser));
865 /* Check for a keyword, they end the linespec. */
866 keyword = linespec_lexer_lex_keyword (PARSER_STREAM (parser));
869 parser->lexer.current.type = LSTOKEN_KEYWORD;
870 LS_TOKEN_KEYWORD (parser->lexer.current) = keyword;
871 /* We do not advance the stream here intentionally:
872 we would like lexing to stop when a keyword is seen.
874 PARSER_STREAM (parser) += strlen (keyword); */
876 return parser->lexer.current;
879 /* Handle other tokens. */
880 switch (*PARSER_STREAM (parser))
883 parser->lexer.current.type = LSTOKEN_EOI;
887 case '0': case '1': case '2': case '3': case '4':
888 case '5': case '6': case '7': case '8': case '9':
889 if (!linespec_lexer_lex_number (parser, &(parser->lexer.current)))
890 parser->lexer.current = linespec_lexer_lex_string (parser);
894 /* If we have a scope operator, lex the input as a string.
895 Otherwise, return LSTOKEN_COLON. */
896 if (PARSER_STREAM (parser)[1] == ':')
897 parser->lexer.current = linespec_lexer_lex_string (parser);
900 parser->lexer.current.type = LSTOKEN_COLON;
901 ++(PARSER_STREAM (parser));
905 case '\'': case '\"':
906 /* Special case: permit quote-enclosed linespecs. */
907 if (parser->is_quote_enclosed
908 && is_closing_quote_enclosed (PARSER_STREAM (parser)))
910 ++(PARSER_STREAM (parser));
911 parser->lexer.current.type = LSTOKEN_EOI;
914 parser->lexer.current = linespec_lexer_lex_string (parser);
918 parser->lexer.current.type = LSTOKEN_COMMA;
919 LS_TOKEN_STOKEN (parser->lexer.current).ptr
920 = PARSER_STREAM (parser);
921 LS_TOKEN_STOKEN (parser->lexer.current).length = 1;
922 ++(PARSER_STREAM (parser));
926 /* If the input is not a number, it must be a string.
927 [Keywords were already considered above.] */
928 parser->lexer.current = linespec_lexer_lex_string (parser);
933 return parser->lexer.current;
936 /* Consume the current token and return the next token in PARSER's
937 input stream. Also advance the completion word for completion
940 static linespec_token
941 linespec_lexer_consume_token (linespec_parser *parser)
943 gdb_assert (parser->lexer.current.type != LSTOKEN_EOI);
945 bool advance_word = (parser->lexer.current.type != LSTOKEN_STRING
946 || *PARSER_STREAM (parser) != '\0');
948 /* If we're moving past a string to some other token, it must be the
949 quote was terminated. */
950 if (parser->completion_quote_char)
952 gdb_assert (parser->lexer.current.type == LSTOKEN_STRING);
954 /* If the string was the last (non-EOI) token, we're past the
955 quote, but remember that for later. */
956 if (*PARSER_STREAM (parser) != '\0')
958 parser->completion_quote_char = '\0';
959 parser->completion_quote_end = NULL;;
963 parser->lexer.current.type = LSTOKEN_CONSUMED;
964 linespec_lexer_lex_one (parser);
966 if (parser->lexer.current.type == LSTOKEN_STRING)
968 /* Advance the completion word past a potential initial
970 parser->completion_word = LS_TOKEN_STOKEN (parser->lexer.current).ptr;
972 else if (advance_word)
974 /* Advance the completion word past any whitespace. */
975 parser->completion_word = PARSER_STREAM (parser);
978 return parser->lexer.current;
981 /* Return the next token without consuming the current token. */
983 static linespec_token
984 linespec_lexer_peek_token (linespec_parser *parser)
987 const char *saved_stream = PARSER_STREAM (parser);
988 linespec_token saved_token = parser->lexer.current;
989 int saved_completion_quote_char = parser->completion_quote_char;
990 const char *saved_completion_quote_end = parser->completion_quote_end;
991 const char *saved_completion_word = parser->completion_word;
993 next = linespec_lexer_consume_token (parser);
994 PARSER_STREAM (parser) = saved_stream;
995 parser->lexer.current = saved_token;
996 parser->completion_quote_char = saved_completion_quote_char;
997 parser->completion_quote_end = saved_completion_quote_end;
998 parser->completion_word = saved_completion_word;
1002 /* Helper functions. */
1004 /* Add SAL to SALS, and also update SELF->CANONICAL_NAMES to reflect
1005 the new sal, if needed. If not NULL, SYMNAME is the name of the
1006 symbol to use when constructing the new canonical name.
1008 If LITERAL_CANONICAL is non-zero, SYMNAME will be used as the
1009 canonical name for the SAL. */
1012 add_sal_to_sals (struct linespec_state *self,
1013 std::vector<symtab_and_line> *sals,
1014 struct symtab_and_line *sal,
1015 const char *symname, int literal_canonical)
1017 sals->push_back (*sal);
1019 if (self->canonical)
1021 struct linespec_canonical_name *canonical;
1023 self->canonical_names = XRESIZEVEC (struct linespec_canonical_name,
1024 self->canonical_names,
1026 canonical = &self->canonical_names[sals->size () - 1];
1027 if (!literal_canonical && sal->symtab)
1029 symtab_to_fullname (sal->symtab);
1031 /* Note that the filter doesn't have to be a valid linespec
1032 input. We only apply the ":LINE" treatment to Ada for
1034 if (symname != NULL && sal->line != 0
1035 && self->language->la_language == language_ada)
1036 canonical->suffix = xstrprintf ("%s:%d", symname, sal->line);
1037 else if (symname != NULL)
1038 canonical->suffix = xstrdup (symname);
1040 canonical->suffix = xstrprintf ("%d", sal->line);
1041 canonical->symtab = sal->symtab;
1045 if (symname != NULL)
1046 canonical->suffix = xstrdup (symname);
1048 canonical->suffix = xstrdup ("<unknown>");
1049 canonical->symtab = NULL;
1054 /* A hash function for address_entry. */
1057 hash_address_entry (const void *p)
1059 const struct address_entry *aep = (const struct address_entry *) p;
1062 hash = iterative_hash_object (aep->pspace, 0);
1063 return iterative_hash_object (aep->addr, hash);
1066 /* An equality function for address_entry. */
1069 eq_address_entry (const void *a, const void *b)
1071 const struct address_entry *aea = (const struct address_entry *) a;
1072 const struct address_entry *aeb = (const struct address_entry *) b;
1074 return aea->pspace == aeb->pspace && aea->addr == aeb->addr;
1077 /* Check whether the address, represented by PSPACE and ADDR, is
1078 already in the set. If so, return 0. Otherwise, add it and return
1082 maybe_add_address (htab_t set, struct program_space *pspace, CORE_ADDR addr)
1084 struct address_entry e, *p;
1089 slot = htab_find_slot (set, &e, INSERT);
1093 p = XNEW (struct address_entry);
1094 memcpy (p, &e, sizeof (struct address_entry));
1100 /* A helper that walks over all matching symtabs in all objfiles and
1101 calls CALLBACK for each symbol matching NAME. If SEARCH_PSPACE is
1102 not NULL, then the search is restricted to just that program
1103 space. If INCLUDE_INLINE is true then symbols representing
1104 inlined instances of functions will be included in the result. */
1107 iterate_over_all_matching_symtabs
1108 (struct linespec_state *state,
1109 const lookup_name_info &lookup_name,
1110 const domain_enum name_domain,
1111 enum search_domain search_domain,
1112 struct program_space *search_pspace, bool include_inline,
1113 gdb::function_view<symbol_found_callback_ftype> callback)
1115 struct objfile *objfile;
1116 struct program_space *pspace;
1118 ALL_PSPACES (pspace)
1120 if (search_pspace != NULL && search_pspace != pspace)
1122 if (pspace->executing_startup)
1125 set_current_program_space (pspace);
1127 ALL_OBJFILES (objfile)
1129 struct compunit_symtab *cu;
1132 objfile->sf->qf->expand_symtabs_matching (objfile,
1138 ALL_OBJFILE_COMPUNITS (objfile, cu)
1140 struct symtab *symtab = COMPUNIT_FILETABS (cu);
1142 iterate_over_file_blocks (symtab, lookup_name, name_domain, callback);
1146 struct block *block;
1149 for (i = FIRST_LOCAL_BLOCK;
1150 i < BLOCKVECTOR_NBLOCKS (SYMTAB_BLOCKVECTOR (symtab));
1153 block = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab), i);
1154 state->language->la_iterate_over_symbols
1155 (block, lookup_name, name_domain, [&] (symbol *sym)
1157 /* Restrict calls to CALLBACK to symbols
1158 representing inline symbols only. */
1159 if (SYMBOL_INLINED (sym))
1160 return callback (sym);
1170 /* Returns the block to be used for symbol searches from
1171 the current location. */
1173 static const struct block *
1174 get_current_search_block (void)
1176 const struct block *block;
1177 enum language save_language;
1179 /* get_selected_block can change the current language when there is
1180 no selected frame yet. */
1181 save_language = current_language->la_language;
1182 block = get_selected_block (0);
1183 set_language (save_language);
1188 /* Iterate over static and global blocks. */
1191 iterate_over_file_blocks
1192 (struct symtab *symtab, const lookup_name_info &name,
1193 domain_enum domain, gdb::function_view<symbol_found_callback_ftype> callback)
1195 struct block *block;
1197 for (block = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab), STATIC_BLOCK);
1199 block = BLOCK_SUPERBLOCK (block))
1200 LA_ITERATE_OVER_SYMBOLS (block, name, domain, callback);
1203 /* A helper for find_method. This finds all methods in type T of
1204 language T_LANG which match NAME. It adds matching symbol names to
1205 RESULT_NAMES, and adds T's direct superclasses to SUPERCLASSES. */
1208 find_methods (struct type *t, enum language t_lang, const char *name,
1209 VEC (const_char_ptr) **result_names,
1210 VEC (typep) **superclasses)
1213 const char *class_name = type_name_no_tag (t);
1215 /* Ignore this class if it doesn't have a name. This is ugly, but
1216 unless we figure out how to get the physname without the name of
1217 the class, then the loop can't do any good. */
1221 lookup_name_info lookup_name (name, symbol_name_match_type::FULL);
1222 symbol_name_matcher_ftype *symbol_name_compare
1223 = language_get_symbol_name_matcher (language_def (t_lang), lookup_name);
1225 t = check_typedef (t);
1227 /* Loop over each method name. At this level, all overloads of a name
1228 are counted as a single name. There is an inner loop which loops over
1231 for (method_counter = TYPE_NFN_FIELDS (t) - 1;
1232 method_counter >= 0;
1235 const char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter);
1236 char dem_opname[64];
1238 if (startswith (method_name, "__") ||
1239 startswith (method_name, "op") ||
1240 startswith (method_name, "type"))
1242 if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI))
1243 method_name = dem_opname;
1244 else if (cplus_demangle_opname (method_name, dem_opname, 0))
1245 method_name = dem_opname;
1248 if (symbol_name_compare (method_name, lookup_name, NULL))
1252 for (field_counter = (TYPE_FN_FIELDLIST_LENGTH (t, method_counter)
1258 const char *phys_name;
1260 f = TYPE_FN_FIELDLIST1 (t, method_counter);
1261 if (TYPE_FN_FIELD_STUB (f, field_counter))
1263 phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
1264 VEC_safe_push (const_char_ptr, *result_names, phys_name);
1270 for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++)
1271 VEC_safe_push (typep, *superclasses, TYPE_BASECLASS (t, ibase));
1274 /* Find an instance of the character C in the string S that is outside
1275 of all parenthesis pairs, single-quoted strings, and double-quoted
1276 strings. Also, ignore the char within a template name, like a ','
1277 within foo<int, int>, while considering C++ operator</operator<<. */
1280 find_toplevel_char (const char *s, char c)
1282 int quoted = 0; /* zero if we're not in quotes;
1283 '"' if we're in a double-quoted string;
1284 '\'' if we're in a single-quoted string. */
1285 int depth = 0; /* Number of unclosed parens we've seen. */
1288 for (scan = s; *scan; scan++)
1292 if (*scan == quoted)
1294 else if (*scan == '\\' && *(scan + 1))
1297 else if (*scan == c && ! quoted && depth == 0)
1299 else if (*scan == '"' || *scan == '\'')
1301 else if (*scan == '(' || *scan == '<')
1303 else if ((*scan == ')' || *scan == '>') && depth > 0)
1305 else if (*scan == 'o' && !quoted && depth == 0)
1307 /* Handle C++ operator names. */
1308 if (strncmp (scan, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0)
1310 scan += CP_OPERATOR_LEN;
1313 while (isspace (*scan))
1324 /* Skip over one less than the appropriate number of
1325 characters: the for loop will skip over the last
1351 /* The string equivalent of find_toplevel_char. Returns a pointer
1352 to the location of NEEDLE in HAYSTACK, ignoring any occurrences
1353 inside "()" and "<>". Returns NULL if NEEDLE was not found. */
1356 find_toplevel_string (const char *haystack, const char *needle)
1358 const char *s = haystack;
1362 s = find_toplevel_char (s, *needle);
1366 /* Found first char in HAYSTACK; check rest of string. */
1367 if (startswith (s, needle))
1370 /* Didn't find it; loop over HAYSTACK, looking for the next
1371 instance of the first character of NEEDLE. */
1375 while (s != NULL && *s != '\0');
1377 /* NEEDLE was not found in HAYSTACK. */
1381 /* Convert CANONICAL to its string representation using
1382 symtab_to_fullname for SYMTAB. The caller must xfree the result. */
1385 canonical_to_fullform (const struct linespec_canonical_name *canonical)
1387 if (canonical->symtab == NULL)
1388 return xstrdup (canonical->suffix);
1390 return xstrprintf ("%s:%s", symtab_to_fullname (canonical->symtab),
1394 /* Given FILTERS, a list of canonical names, filter the sals in RESULT
1395 and store the result in SELF->CANONICAL. */
1398 filter_results (struct linespec_state *self,
1399 std::vector<symtab_and_line> *result,
1400 VEC (const_char_ptr) *filters)
1405 for (i = 0; VEC_iterate (const_char_ptr, filters, i, name); ++i)
1409 for (size_t j = 0; j < result->size (); ++j)
1411 const struct linespec_canonical_name *canonical;
1413 struct cleanup *cleanup;
1415 canonical = &self->canonical_names[j];
1416 fullform = canonical_to_fullform (canonical);
1417 cleanup = make_cleanup (xfree, fullform);
1419 if (strcmp (name, fullform) == 0)
1420 lsal.sals.push_back ((*result)[j]);
1422 do_cleanups (cleanup);
1425 if (!lsal.sals.empty ())
1427 lsal.canonical = xstrdup (name);
1428 self->canonical->lsals.push_back (std::move (lsal));
1432 self->canonical->pre_expanded = 0;
1435 /* Store RESULT into SELF->CANONICAL. */
1438 convert_results_to_lsals (struct linespec_state *self,
1439 std::vector<symtab_and_line> *result)
1441 struct linespec_sals lsal;
1443 lsal.canonical = NULL;
1444 lsal.sals = std::move (*result);
1445 self->canonical->lsals.push_back (std::move (lsal));
1448 /* A structure that contains two string representations of a struct
1449 linespec_canonical_name:
1450 - one where the the symtab's fullname is used;
1451 - one where the filename followed the "set filename-display"
1454 struct decode_line_2_item
1456 /* The form using symtab_to_fullname.
1457 It must be xfree'ed after use. */
1460 /* The form using symtab_to_filename_for_display.
1461 It must be xfree'ed after use. */
1464 /* Field is initialized to zero and it is set to one if the user
1465 requested breakpoint for this entry. */
1466 unsigned int selected : 1;
1469 /* Helper for qsort to sort decode_line_2_item entries by DISPLAYFORM and
1470 secondarily by FULLFORM. */
1473 decode_line_2_compare_items (const void *ap, const void *bp)
1475 const struct decode_line_2_item *a = (const struct decode_line_2_item *) ap;
1476 const struct decode_line_2_item *b = (const struct decode_line_2_item *) bp;
1479 retval = strcmp (a->displayform, b->displayform);
1483 return strcmp (a->fullform, b->fullform);
1486 /* Handle multiple results in RESULT depending on SELECT_MODE. This
1487 will either return normally, throw an exception on multiple
1488 results, or present a menu to the user. On return, the SALS vector
1489 in SELF->CANONICAL is set up properly. */
1492 decode_line_2 (struct linespec_state *self,
1493 std::vector<symtab_and_line> *result,
1494 const char *select_mode)
1499 struct cleanup *old_chain;
1500 VEC (const_char_ptr) *filters = NULL;
1501 struct decode_line_2_item *items;
1504 gdb_assert (select_mode != multiple_symbols_all);
1505 gdb_assert (self->canonical != NULL);
1506 gdb_assert (!result->empty ());
1508 old_chain = make_cleanup (VEC_cleanup (const_char_ptr), &filters);
1510 /* Prepare ITEMS array. */
1511 items_count = result->size ();
1512 items = XNEWVEC (struct decode_line_2_item, items_count);
1513 make_cleanup (xfree, items);
1514 for (i = 0; i < items_count; ++i)
1516 const struct linespec_canonical_name *canonical;
1517 struct decode_line_2_item *item;
1519 canonical = &self->canonical_names[i];
1520 gdb_assert (canonical->suffix != NULL);
1523 item->fullform = canonical_to_fullform (canonical);
1524 make_cleanup (xfree, item->fullform);
1526 if (canonical->symtab == NULL)
1527 item->displayform = canonical->suffix;
1530 const char *fn_for_display;
1532 fn_for_display = symtab_to_filename_for_display (canonical->symtab);
1533 item->displayform = xstrprintf ("%s:%s", fn_for_display,
1535 make_cleanup (xfree, item->displayform);
1541 /* Sort the list of method names. */
1542 qsort (items, items_count, sizeof (*items), decode_line_2_compare_items);
1544 /* Remove entries with the same FULLFORM. */
1545 if (items_count >= 2)
1547 struct decode_line_2_item *dst, *src;
1550 for (src = &items[1]; src < &items[items_count]; src++)
1551 if (strcmp (src->fullform, dst->fullform) != 0)
1553 items_count = dst + 1 - items;
1556 if (select_mode == multiple_symbols_cancel && items_count > 1)
1557 error (_("canceled because the command is ambiguous\n"
1558 "See set/show multiple-symbol."));
1560 if (select_mode == multiple_symbols_all || items_count == 1)
1562 do_cleanups (old_chain);
1563 convert_results_to_lsals (self, result);
1567 printf_unfiltered (_("[0] cancel\n[1] all\n"));
1568 for (i = 0; i < items_count; i++)
1569 printf_unfiltered ("[%d] %s\n", i + 2, items[i].displayform);
1571 prompt = getenv ("PS2");
1576 args = command_line_input (prompt, 0, "overload-choice");
1578 if (args == 0 || *args == 0)
1579 error_no_arg (_("one or more choice numbers"));
1581 number_or_range_parser parser (args);
1582 while (!parser.finished ())
1584 int num = parser.get_number ();
1587 error (_("canceled"));
1590 /* We intentionally make this result in a single breakpoint,
1591 contrary to what older versions of gdb did. The
1592 rationale is that this lets a user get the
1593 multiple_symbols_all behavior even with the 'ask'
1594 setting; and he can get separate breakpoints by entering
1595 "2-57" at the query. */
1596 do_cleanups (old_chain);
1597 convert_results_to_lsals (self, result);
1602 if (num >= items_count)
1603 printf_unfiltered (_("No choice number %d.\n"), num);
1606 struct decode_line_2_item *item = &items[num];
1608 if (!item->selected)
1610 VEC_safe_push (const_char_ptr, filters, item->fullform);
1615 printf_unfiltered (_("duplicate request for %d ignored.\n"),
1621 filter_results (self, result, filters);
1622 do_cleanups (old_chain);
1627 /* The parser of linespec itself. */
1629 /* Throw an appropriate error when SYMBOL is not found (optionally in
1632 static void ATTRIBUTE_NORETURN
1633 symbol_not_found_error (const char *symbol, const char *filename)
1638 if (!have_full_symbols ()
1639 && !have_partial_symbols ()
1640 && !have_minimal_symbols ())
1641 throw_error (NOT_FOUND_ERROR,
1642 _("No symbol table is loaded. Use the \"file\" command."));
1644 /* If SYMBOL starts with '$', the user attempted to either lookup
1645 a function/variable in his code starting with '$' or an internal
1646 variable of that name. Since we do not know which, be concise and
1647 explain both possibilities. */
1651 throw_error (NOT_FOUND_ERROR,
1652 _("Undefined convenience variable or function \"%s\" "
1653 "not defined in \"%s\"."), symbol, filename);
1655 throw_error (NOT_FOUND_ERROR,
1656 _("Undefined convenience variable or function \"%s\" "
1657 "not defined."), symbol);
1662 throw_error (NOT_FOUND_ERROR,
1663 _("Function \"%s\" not defined in \"%s\"."),
1666 throw_error (NOT_FOUND_ERROR,
1667 _("Function \"%s\" not defined."), symbol);
1671 /* Throw an appropriate error when an unexpected token is encountered
1674 static void ATTRIBUTE_NORETURN
1675 unexpected_linespec_error (linespec_parser *parser)
1677 linespec_token token;
1678 static const char * token_type_strings[]
1679 = {"keyword", "colon", "string", "number", "comma", "end of input"};
1681 /* Get the token that generated the error. */
1682 token = linespec_lexer_lex_one (parser);
1684 /* Finally, throw the error. */
1685 if (token.type == LSTOKEN_STRING || token.type == LSTOKEN_NUMBER
1686 || token.type == LSTOKEN_KEYWORD)
1690 string = copy_token_string (token);
1691 make_cleanup (xfree, string);
1692 throw_error (GENERIC_ERROR,
1693 _("malformed linespec error: unexpected %s, \"%s\""),
1694 token_type_strings[token.type], string);
1697 throw_error (GENERIC_ERROR,
1698 _("malformed linespec error: unexpected %s"),
1699 token_type_strings[token.type]);
1702 /* Throw an undefined label error. */
1704 static void ATTRIBUTE_NORETURN
1705 undefined_label_error (const char *function, const char *label)
1707 if (function != NULL)
1708 throw_error (NOT_FOUND_ERROR,
1709 _("No label \"%s\" defined in function \"%s\"."),
1712 throw_error (NOT_FOUND_ERROR,
1713 _("No label \"%s\" defined in current function."),
1717 /* Throw a source file not found error. */
1719 static void ATTRIBUTE_NORETURN
1720 source_file_not_found_error (const char *name)
1722 throw_error (NOT_FOUND_ERROR, _("No source file named %s."), name);
1725 /* Unless at EIO, save the current stream position as completion word
1726 point, and consume the next token. */
1728 static linespec_token
1729 save_stream_and_consume_token (linespec_parser *parser)
1731 if (linespec_lexer_peek_token (parser).type != LSTOKEN_EOI)
1732 parser->completion_word = PARSER_STREAM (parser);
1733 return linespec_lexer_consume_token (parser);
1736 /* See description in linespec.h. */
1739 linespec_parse_line_offset (const char *string)
1741 const char *start = string;
1742 struct line_offset line_offset = {0, LINE_OFFSET_NONE};
1746 line_offset.sign = LINE_OFFSET_PLUS;
1749 else if (*string == '-')
1751 line_offset.sign = LINE_OFFSET_MINUS;
1755 if (*string != '\0' && !isdigit (*string))
1756 error (_("malformed line offset: \"%s\""), start);
1758 /* Right now, we only allow base 10 for offsets. */
1759 line_offset.offset = atoi (string);
1763 /* In completion mode, if the user is still typing the number, there's
1764 no possible completion to offer. But if there's already input past
1765 the number, setup to expect NEXT. */
1768 set_completion_after_number (linespec_parser *parser,
1769 linespec_complete_what next)
1771 if (*PARSER_STREAM (parser) == ' ')
1773 parser->completion_word = skip_spaces (PARSER_STREAM (parser) + 1);
1774 parser->complete_what = next;
1778 parser->completion_word = PARSER_STREAM (parser);
1779 parser->complete_what = linespec_complete_what::NOTHING;
1783 /* Parse the basic_spec in PARSER's input. */
1786 linespec_parse_basic (linespec_parser *parser)
1789 linespec_token token;
1790 VEC (symbolp) *symbols, *labels;
1791 VEC (bound_minimal_symbol_d) *minimal_symbols;
1792 struct cleanup *cleanup;
1794 /* Get the next token. */
1795 token = linespec_lexer_lex_one (parser);
1797 /* If it is EOI or KEYWORD, issue an error. */
1798 if (token.type == LSTOKEN_KEYWORD)
1800 parser->complete_what = linespec_complete_what::NOTHING;
1801 unexpected_linespec_error (parser);
1803 else if (token.type == LSTOKEN_EOI)
1805 unexpected_linespec_error (parser);
1807 /* If it is a LSTOKEN_NUMBER, we have an offset. */
1808 else if (token.type == LSTOKEN_NUMBER)
1810 set_completion_after_number (parser, linespec_complete_what::KEYWORD);
1812 /* Record the line offset and get the next token. */
1813 name = copy_token_string (token);
1814 cleanup = make_cleanup (xfree, name);
1815 PARSER_EXPLICIT (parser)->line_offset = linespec_parse_line_offset (name);
1816 do_cleanups (cleanup);
1818 /* Get the next token. */
1819 token = linespec_lexer_consume_token (parser);
1821 /* If the next token is a comma, stop parsing and return. */
1822 if (token.type == LSTOKEN_COMMA)
1824 parser->complete_what = linespec_complete_what::NOTHING;
1828 /* If the next token is anything but EOI or KEYWORD, issue
1830 if (token.type != LSTOKEN_KEYWORD && token.type != LSTOKEN_EOI)
1831 unexpected_linespec_error (parser);
1834 if (token.type == LSTOKEN_KEYWORD || token.type == LSTOKEN_EOI)
1837 /* Next token must be LSTOKEN_STRING. */
1838 if (token.type != LSTOKEN_STRING)
1840 parser->complete_what = linespec_complete_what::NOTHING;
1841 unexpected_linespec_error (parser);
1844 /* The current token will contain the name of a function, method,
1846 name = copy_token_string (token);
1847 cleanup = make_cleanup (free_current_contents, &name);
1849 if (parser->completion_tracker != NULL)
1851 /* If the function name ends with a ":", then this may be an
1852 incomplete "::" scope operator instead of a label separator.
1855 which should expand to:
1858 Do a tentative completion assuming the later. If we find
1859 completions, advance the stream past the colon token and make
1860 it part of the function name/token. */
1862 if (!parser->completion_quote_char
1863 && strcmp (PARSER_STREAM (parser), ":") == 0)
1865 completion_tracker tmp_tracker;
1866 const char *source_filename
1867 = PARSER_EXPLICIT (parser)->source_filename;
1869 linespec_complete_function (tmp_tracker,
1870 parser->completion_word,
1873 if (tmp_tracker.have_completions ())
1875 PARSER_STREAM (parser)++;
1876 LS_TOKEN_STOKEN (token).length++;
1879 name = savestring (parser->completion_word,
1880 (PARSER_STREAM (parser)
1881 - parser->completion_word));
1885 PARSER_EXPLICIT (parser)->function_name = name;
1886 discard_cleanups (cleanup);
1890 /* XXX Reindent before pushing. */
1892 /* Try looking it up as a function/method. */
1893 find_linespec_symbols (PARSER_STATE (parser),
1894 PARSER_RESULT (parser)->file_symtabs, name,
1895 &symbols, &minimal_symbols);
1897 if (symbols != NULL || minimal_symbols != NULL)
1899 PARSER_RESULT (parser)->function_symbols = symbols;
1900 PARSER_RESULT (parser)->minimal_symbols = minimal_symbols;
1901 PARSER_EXPLICIT (parser)->function_name = name;
1903 discard_cleanups (cleanup);
1907 /* NAME was not a function or a method. So it must be a label
1908 name or user specified variable like "break foo.c:$zippo". */
1909 labels = find_label_symbols (PARSER_STATE (parser), NULL,
1913 PARSER_RESULT (parser)->labels.label_symbols = labels;
1914 PARSER_RESULT (parser)->labels.function_symbols = symbols;
1915 PARSER_EXPLICIT (parser)->label_name = name;
1917 discard_cleanups (cleanup);
1919 else if (token.type == LSTOKEN_STRING
1920 && *LS_TOKEN_STOKEN (token).ptr == '$')
1922 /* User specified a convenience variable or history value. */
1923 PARSER_EXPLICIT (parser)->line_offset
1924 = linespec_parse_variable (PARSER_STATE (parser), name);
1926 if (PARSER_EXPLICIT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN)
1928 /* The user-specified variable was not valid. Do not
1929 throw an error here. parse_linespec will do it for us. */
1930 PARSER_EXPLICIT (parser)->function_name = name;
1931 discard_cleanups (cleanup);
1935 /* The convenience variable/history value parsed correctly.
1936 NAME is no longer needed. */
1937 do_cleanups (cleanup);
1941 /* The name is also not a label. Abort parsing. Do not throw
1942 an error here. parse_linespec will do it for us. */
1944 /* Save a copy of the name we were trying to lookup. */
1945 PARSER_EXPLICIT (parser)->function_name = name;
1946 discard_cleanups (cleanup);
1952 int previous_qc = parser->completion_quote_char;
1954 /* Get the next token. */
1955 token = linespec_lexer_consume_token (parser);
1957 if (token.type == LSTOKEN_EOI)
1959 if (previous_qc && !parser->completion_quote_char)
1960 parser->complete_what = linespec_complete_what::KEYWORD;
1962 else if (token.type == LSTOKEN_COLON)
1964 /* User specified a label or a lineno. */
1965 token = linespec_lexer_consume_token (parser);
1967 if (token.type == LSTOKEN_NUMBER)
1969 /* User specified an offset. Record the line offset and
1970 get the next token. */
1971 set_completion_after_number (parser, linespec_complete_what::KEYWORD);
1973 name = copy_token_string (token);
1974 cleanup = make_cleanup (xfree, name);
1975 PARSER_EXPLICIT (parser)->line_offset
1976 = linespec_parse_line_offset (name);
1977 do_cleanups (cleanup);
1979 /* Get the next token. */
1980 token = linespec_lexer_consume_token (parser);
1982 else if (token.type == LSTOKEN_EOI && parser->completion_tracker != NULL)
1984 parser->complete_what = linespec_complete_what::LABEL;
1986 else if (token.type == LSTOKEN_STRING)
1988 parser->complete_what = linespec_complete_what::LABEL;
1990 /* If we have text after the label separated by whitespace
1991 (e.g., "b func():lab i<tab>"), don't consider it part of
1992 the label. In completion mode that should complete to
1993 "if", in normal mode, the 'i' should be treated as
1995 if (parser->completion_quote_char == '\0')
1997 const char *ptr = LS_TOKEN_STOKEN (token).ptr;
1998 for (size_t i = 0; i < LS_TOKEN_STOKEN (token).length; i++)
2002 LS_TOKEN_STOKEN (token).length = i;
2003 PARSER_STREAM (parser) = skip_spaces (ptr + i + 1);
2009 if (parser->completion_tracker != NULL)
2011 if (PARSER_STREAM (parser)[-1] == ' ')
2013 parser->completion_word = PARSER_STREAM (parser);
2014 parser->complete_what = linespec_complete_what::KEYWORD;
2019 /* XXX Reindent before pushing. */
2021 /* Grab a copy of the label's name and look it up. */
2022 name = copy_token_string (token);
2023 cleanup = make_cleanup (xfree, name);
2024 labels = find_label_symbols (PARSER_STATE (parser),
2025 PARSER_RESULT (parser)->function_symbols,
2030 PARSER_RESULT (parser)->labels.label_symbols = labels;
2031 PARSER_RESULT (parser)->labels.function_symbols = symbols;
2032 PARSER_EXPLICIT (parser)->label_name = name;
2034 discard_cleanups (cleanup);
2038 /* We don't know what it was, but it isn't a label. */
2039 undefined_label_error (PARSER_EXPLICIT (parser)->function_name,
2045 /* Check for a line offset. */
2046 token = save_stream_and_consume_token (parser);
2047 if (token.type == LSTOKEN_COLON)
2049 /* Get the next token. */
2050 token = linespec_lexer_consume_token (parser);
2052 /* It must be a line offset. */
2053 if (token.type != LSTOKEN_NUMBER)
2054 unexpected_linespec_error (parser);
2056 /* Record the line offset and get the next token. */
2057 name = copy_token_string (token);
2058 cleanup = make_cleanup (xfree, name);
2060 PARSER_EXPLICIT (parser)->line_offset
2061 = linespec_parse_line_offset (name);
2062 do_cleanups (cleanup);
2064 /* Get the next token. */
2065 token = linespec_lexer_consume_token (parser);
2070 /* Trailing ':' in the input. Issue an error. */
2071 unexpected_linespec_error (parser);
2076 /* Canonicalize the linespec contained in LS. The result is saved into
2077 STATE->canonical. This function handles both linespec and explicit
2081 canonicalize_linespec (struct linespec_state *state, const linespec_p ls)
2083 struct event_location *canon;
2084 struct explicit_location *explicit_loc;
2086 /* If canonicalization was not requested, no need to do anything. */
2087 if (!state->canonical)
2090 /* Save everything as an explicit location. */
2091 state->canonical->location
2092 = new_explicit_location (&ls->explicit_loc);
2093 canon = state->canonical->location.get ();
2094 explicit_loc = get_explicit_location (canon);
2096 if (explicit_loc->label_name != NULL)
2098 state->canonical->special_display = 1;
2100 if (explicit_loc->function_name == NULL)
2104 /* No function was specified, so add the symbol name. */
2105 gdb_assert (ls->labels.function_symbols != NULL
2106 && (VEC_length (symbolp, ls->labels.function_symbols)
2108 s = VEC_index (symbolp, ls->labels.function_symbols, 0);
2109 explicit_loc->function_name = xstrdup (SYMBOL_NATURAL_NAME (s));
2113 /* If this location originally came from a linespec, save a string
2114 representation of it for display and saving to file. */
2115 if (state->is_linespec)
2117 char *linespec = explicit_location_to_linespec (explicit_loc);
2119 set_event_location_string (canon, linespec);
2124 /* Given a line offset in LS, construct the relevant SALs. */
2126 static std::vector<symtab_and_line>
2127 create_sals_line_offset (struct linespec_state *self,
2130 int use_default = 0;
2132 /* This is where we need to make sure we have good defaults.
2133 We must guarantee that this section of code is never executed
2134 when we are called with just a function name, since
2135 set_default_source_symtab_and_line uses
2136 select_source_symtab that calls us with such an argument. */
2138 if (VEC_length (symtab_ptr, ls->file_symtabs) == 1
2139 && VEC_index (symtab_ptr, ls->file_symtabs, 0) == NULL)
2141 const char *fullname;
2143 set_current_program_space (self->program_space);
2145 /* Make sure we have at least a default source line. */
2146 set_default_source_symtab_and_line ();
2147 initialize_defaults (&self->default_symtab, &self->default_line);
2148 fullname = symtab_to_fullname (self->default_symtab);
2149 VEC_pop (symtab_ptr, ls->file_symtabs);
2150 VEC_free (symtab_ptr, ls->file_symtabs);
2151 ls->file_symtabs = collect_symtabs_from_filename (fullname,
2152 self->search_pspace);
2156 symtab_and_line val;
2157 val.line = ls->explicit_loc.line_offset.offset;
2158 switch (ls->explicit_loc.line_offset.sign)
2160 case LINE_OFFSET_PLUS:
2161 if (ls->explicit_loc.line_offset.offset == 0)
2164 val.line = self->default_line + val.line;
2167 case LINE_OFFSET_MINUS:
2168 if (ls->explicit_loc.line_offset.offset == 0)
2171 val.line = self->default_line - val.line;
2173 val.line = -val.line;
2176 case LINE_OFFSET_NONE:
2177 break; /* No need to adjust val.line. */
2180 std::vector<symtab_and_line> values;
2181 if (self->list_mode)
2182 values = decode_digits_list_mode (self, ls, val);
2185 struct linetable_entry *best_entry = NULL;
2188 std::vector<symtab_and_line> intermediate_results
2189 = decode_digits_ordinary (self, ls, val.line, &best_entry);
2190 if (intermediate_results.empty () && best_entry != NULL)
2191 intermediate_results = decode_digits_ordinary (self, ls,
2195 /* For optimized code, the compiler can scatter one source line
2196 across disjoint ranges of PC values, even when no duplicate
2197 functions or inline functions are involved. For example,
2198 'for (;;)' inside a non-template, non-inline, and non-ctor-or-dtor
2199 function can result in two PC ranges. In this case, we don't
2200 want to set a breakpoint on the first PC of each range. To filter
2201 such cases, we use containing blocks -- for each PC found
2202 above, we see if there are other PCs that are in the same
2203 block. If yes, the other PCs are filtered out. */
2205 gdb::def_vector<int> filter (intermediate_results.size ());
2206 gdb::def_vector<const block *> blocks (intermediate_results.size ());
2208 for (i = 0; i < intermediate_results.size (); ++i)
2210 set_current_program_space (intermediate_results[i].pspace);
2213 blocks[i] = block_for_pc_sect (intermediate_results[i].pc,
2214 intermediate_results[i].section);
2217 for (i = 0; i < intermediate_results.size (); ++i)
2219 if (blocks[i] != NULL)
2220 for (j = i + 1; j < intermediate_results.size (); ++j)
2222 if (blocks[j] == blocks[i])
2230 for (i = 0; i < intermediate_results.size (); ++i)
2233 struct symbol *sym = (blocks[i]
2234 ? block_containing_function (blocks[i])
2237 if (self->funfirstline)
2238 skip_prologue_sal (&intermediate_results[i]);
2239 /* Make sure the line matches the request, not what was
2241 intermediate_results[i].line = val.line;
2242 add_sal_to_sals (self, &values, &intermediate_results[i],
2243 sym ? SYMBOL_NATURAL_NAME (sym) : NULL, 0);
2247 if (values.empty ())
2249 if (ls->explicit_loc.source_filename)
2250 throw_error (NOT_FOUND_ERROR, _("No line %d in file \"%s\"."),
2251 val.line, ls->explicit_loc.source_filename);
2253 throw_error (NOT_FOUND_ERROR, _("No line %d in the current file."),
2260 /* Convert the given ADDRESS into SaLs. */
2262 static std::vector<symtab_and_line>
2263 convert_address_location_to_sals (struct linespec_state *self,
2266 symtab_and_line sal = find_pc_line (address, 0);
2268 sal.section = find_pc_overlay (address);
2269 sal.explicit_pc = 1;
2271 std::vector<symtab_and_line> sals;
2272 add_sal_to_sals (self, &sals, &sal, core_addr_to_string (address), 1);
2277 /* Create and return SALs from the linespec LS. */
2279 static std::vector<symtab_and_line>
2280 convert_linespec_to_sals (struct linespec_state *state, linespec_p ls)
2282 std::vector<symtab_and_line> sals;
2284 if (ls->labels.label_symbols != NULL)
2286 /* We have just a bunch of functions/methods or labels. */
2288 struct symtab_and_line sal;
2291 for (i = 0; VEC_iterate (symbolp, ls->labels.label_symbols, i, sym); ++i)
2293 struct program_space *pspace = SYMTAB_PSPACE (symbol_symtab (sym));
2295 if (symbol_to_sal (&sal, state->funfirstline, sym)
2296 && maybe_add_address (state->addr_set, pspace, sal.pc))
2297 add_sal_to_sals (state, &sals, &sal,
2298 SYMBOL_NATURAL_NAME (sym), 0);
2301 else if (ls->function_symbols != NULL || ls->minimal_symbols != NULL)
2303 /* We have just a bunch of functions and/or methods. */
2305 struct symtab_and_line sal;
2307 bound_minimal_symbol_d *elem;
2308 struct program_space *pspace;
2310 if (ls->function_symbols != NULL)
2312 /* Sort symbols so that symbols with the same program space are next
2314 qsort (VEC_address (symbolp, ls->function_symbols),
2315 VEC_length (symbolp, ls->function_symbols),
2316 sizeof (symbolp), compare_symbols);
2318 for (i = 0; VEC_iterate (symbolp, ls->function_symbols, i, sym); ++i)
2320 pspace = SYMTAB_PSPACE (symbol_symtab (sym));
2321 set_current_program_space (pspace);
2322 if (symbol_to_sal (&sal, state->funfirstline, sym)
2323 && maybe_add_address (state->addr_set, pspace, sal.pc))
2324 add_sal_to_sals (state, &sals, &sal,
2325 SYMBOL_NATURAL_NAME (sym), 0);
2329 if (ls->minimal_symbols != NULL)
2331 /* Sort minimal symbols by program space, too. */
2332 qsort (VEC_address (bound_minimal_symbol_d, ls->minimal_symbols),
2333 VEC_length (bound_minimal_symbol_d, ls->minimal_symbols),
2334 sizeof (bound_minimal_symbol_d), compare_msymbols);
2337 VEC_iterate (bound_minimal_symbol_d, ls->minimal_symbols,
2341 pspace = elem->objfile->pspace;
2342 set_current_program_space (pspace);
2343 minsym_found (state, elem->objfile, elem->minsym, &sals);
2347 else if (ls->explicit_loc.line_offset.sign != LINE_OFFSET_UNKNOWN)
2349 /* Only an offset was specified. */
2350 sals = create_sals_line_offset (state, ls);
2352 /* Make sure we have a filename for canonicalization. */
2353 if (ls->explicit_loc.source_filename == NULL)
2355 const char *fullname = symtab_to_fullname (state->default_symtab);
2357 /* It may be more appropriate to keep DEFAULT_SYMTAB in its symtab
2358 form so that displaying SOURCE_FILENAME can follow the current
2359 FILENAME_DISPLAY_STRING setting. But as it is used only rarely
2360 it has been kept for code simplicity only in absolute form. */
2361 ls->explicit_loc.source_filename = xstrdup (fullname);
2366 /* We haven't found any results... */
2370 canonicalize_linespec (state, ls);
2372 if (!sals.empty () && state->canonical != NULL)
2373 state->canonical->pre_expanded = 1;
2378 /* Build RESULT from the explicit location components SOURCE_FILENAME,
2379 FUNCTION_NAME, LABEL_NAME and LINE_OFFSET. */
2382 convert_explicit_location_to_linespec (struct linespec_state *self,
2384 const char *source_filename,
2385 const char *function_name,
2386 const char *label_name,
2387 struct line_offset line_offset)
2389 VEC (symbolp) *symbols, *labels;
2390 VEC (bound_minimal_symbol_d) *minimal_symbols;
2392 if (source_filename != NULL)
2396 result->file_symtabs
2397 = symtabs_from_filename (source_filename, self->search_pspace);
2399 CATCH (except, RETURN_MASK_ERROR)
2401 source_file_not_found_error (source_filename);
2404 result->explicit_loc.source_filename = xstrdup (source_filename);
2408 /* A NULL entry means to use the default symtab. */
2409 VEC_safe_push (symtab_ptr, result->file_symtabs, NULL);
2412 if (function_name != NULL)
2414 find_linespec_symbols (self, result->file_symtabs,
2415 function_name, &symbols,
2418 if (symbols == NULL && minimal_symbols == NULL)
2419 symbol_not_found_error (function_name,
2420 result->explicit_loc.source_filename);
2422 result->explicit_loc.function_name = xstrdup (function_name);
2423 result->function_symbols = symbols;
2424 result->minimal_symbols = minimal_symbols;
2427 if (label_name != NULL)
2430 labels = find_label_symbols (self, result->function_symbols,
2431 &symbols, label_name);
2434 undefined_label_error (result->explicit_loc.function_name,
2437 result->explicit_loc.label_name = xstrdup (label_name);
2438 result->labels.label_symbols = labels;
2439 result->labels.function_symbols = symbols;
2442 if (line_offset.sign != LINE_OFFSET_UNKNOWN)
2443 result->explicit_loc.line_offset = line_offset;
2446 /* Convert the explicit location EXPLICIT_LOC into SaLs. */
2448 static std::vector<symtab_and_line>
2449 convert_explicit_location_to_sals (struct linespec_state *self,
2451 const struct explicit_location *explicit_loc)
2453 convert_explicit_location_to_linespec (self, result,
2454 explicit_loc->source_filename,
2455 explicit_loc->function_name,
2456 explicit_loc->label_name,
2457 explicit_loc->line_offset);
2458 return convert_linespec_to_sals (self, result);
2461 /* Parse a string that specifies a linespec.
2463 The basic grammar of linespecs:
2465 linespec -> var_spec | basic_spec
2466 var_spec -> '$' (STRING | NUMBER)
2468 basic_spec -> file_offset_spec | function_spec | label_spec
2469 file_offset_spec -> opt_file_spec offset_spec
2470 function_spec -> opt_file_spec function_name_spec opt_label_spec
2471 label_spec -> label_name_spec
2473 opt_file_spec -> "" | file_name_spec ':'
2474 opt_label_spec -> "" | ':' label_name_spec
2476 file_name_spec -> STRING
2477 function_name_spec -> STRING
2478 label_name_spec -> STRING
2479 function_name_spec -> STRING
2480 offset_spec -> NUMBER
2484 This may all be followed by several keywords such as "if EXPR",
2487 A comma will terminate parsing.
2489 The function may be an undebuggable function found in minimal symbol table.
2491 If the argument FUNFIRSTLINE is nonzero, we want the first line
2492 of real code inside a function when a function is specified, and it is
2493 not OK to specify a variable or type to get its line number.
2495 DEFAULT_SYMTAB specifies the file to use if none is specified.
2496 It defaults to current_source_symtab.
2497 DEFAULT_LINE specifies the line number to use for relative
2498 line numbers (that start with signs). Defaults to current_source_line.
2499 If CANONICAL is non-NULL, store an array of strings containing the canonical
2500 line specs there if necessary. Currently overloaded member functions and
2501 line numbers or static functions without a filename yield a canonical
2502 line spec. The array and the line spec strings are allocated on the heap,
2503 it is the callers responsibility to free them.
2505 Note that it is possible to return zero for the symtab
2506 if no file is validly specified. Callers must check that.
2507 Also, the line number returned may be invalid. */
2509 /* Parse the linespec in ARG. */
2511 static std::vector<symtab_and_line>
2512 parse_linespec (linespec_parser *parser, const char *arg)
2514 linespec_token token;
2515 struct gdb_exception file_exception = exception_none;
2516 struct cleanup *cleanup;
2518 /* A special case to start. It has become quite popular for
2519 IDEs to work around bugs in the previous parser by quoting
2520 the entire linespec, so we attempt to deal with this nicely. */
2521 parser->is_quote_enclosed = 0;
2522 if (parser->completion_tracker == NULL
2523 && !is_ada_operator (arg)
2524 && strchr (linespec_quote_characters, *arg) != NULL)
2528 end = skip_quote_char (arg + 1, *arg);
2529 if (end != NULL && is_closing_quote_enclosed (end))
2531 /* Here's the special case. Skip ARG past the initial
2534 parser->is_quote_enclosed = 1;
2538 parser->lexer.saved_arg = arg;
2539 parser->lexer.stream = arg;
2540 parser->completion_word = arg;
2541 parser->complete_what = linespec_complete_what::FUNCTION;
2543 /* Initialize the default symtab and line offset. */
2544 initialize_defaults (&PARSER_STATE (parser)->default_symtab,
2545 &PARSER_STATE (parser)->default_line);
2547 /* Objective-C shortcut. */
2548 if (parser->completion_tracker == NULL)
2550 std::vector<symtab_and_line> values
2551 = decode_objc (PARSER_STATE (parser), PARSER_RESULT (parser), arg);
2552 if (!values.empty ())
2557 /* "-"/"+" is either an objc selector, or a number. There's
2558 nothing to complete the latter to, so just let the caller
2559 complete on functions, which finds objc selectors, if there's
2561 if ((arg[0] == '-' || arg[0] == '+') && arg[1] == '\0')
2565 /* Start parsing. */
2567 /* Get the first token. */
2568 token = linespec_lexer_consume_token (parser);
2570 /* It must be either LSTOKEN_STRING or LSTOKEN_NUMBER. */
2571 if (token.type == LSTOKEN_STRING && *LS_TOKEN_STOKEN (token).ptr == '$')
2575 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2576 if (parser->completion_tracker == NULL)
2577 VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL);
2579 /* User specified a convenience variable or history value. */
2580 var = copy_token_string (token);
2581 cleanup = make_cleanup (xfree, var);
2582 PARSER_EXPLICIT (parser)->line_offset
2583 = linespec_parse_variable (PARSER_STATE (parser), var);
2584 do_cleanups (cleanup);
2586 /* If a line_offset wasn't found (VAR is the name of a user
2587 variable/function), then skip to normal symbol processing. */
2588 if (PARSER_EXPLICIT (parser)->line_offset.sign != LINE_OFFSET_UNKNOWN)
2590 /* Consume this token. */
2591 linespec_lexer_consume_token (parser);
2593 goto convert_to_sals;
2596 else if (token.type == LSTOKEN_EOI && parser->completion_tracker != NULL)
2598 /* Let the default linespec_complete_what::FUNCTION kick in. */
2599 unexpected_linespec_error (parser);
2601 else if (token.type != LSTOKEN_STRING && token.type != LSTOKEN_NUMBER)
2603 parser->complete_what = linespec_complete_what::NOTHING;
2604 unexpected_linespec_error (parser);
2607 /* Shortcut: If the next token is not LSTOKEN_COLON, we know that
2608 this token cannot represent a filename. */
2609 token = linespec_lexer_peek_token (parser);
2611 if (token.type == LSTOKEN_COLON)
2613 char *user_filename;
2615 /* Get the current token again and extract the filename. */
2616 token = linespec_lexer_lex_one (parser);
2617 user_filename = copy_token_string (token);
2619 /* Check if the input is a filename. */
2622 PARSER_RESULT (parser)->file_symtabs
2623 = symtabs_from_filename (user_filename,
2624 PARSER_STATE (parser)->search_pspace);
2626 CATCH (ex, RETURN_MASK_ERROR)
2628 file_exception = ex;
2632 if (file_exception.reason >= 0)
2634 /* Symtabs were found for the file. Record the filename. */
2635 PARSER_EXPLICIT (parser)->source_filename = user_filename;
2637 /* Get the next token. */
2638 token = linespec_lexer_consume_token (parser);
2640 /* This is LSTOKEN_COLON; consume it. */
2641 linespec_lexer_consume_token (parser);
2645 /* No symtabs found -- discard user_filename. */
2646 xfree (user_filename);
2648 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2649 VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL);
2652 /* If the next token is not EOI, KEYWORD, or COMMA, issue an error. */
2653 else if (parser->completion_tracker == NULL
2654 && (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD
2655 && token.type != LSTOKEN_COMMA))
2657 /* TOKEN is the _next_ token, not the one currently in the parser.
2658 Consuming the token will give the correct error message. */
2659 linespec_lexer_consume_token (parser);
2660 unexpected_linespec_error (parser);
2664 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2665 VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL);
2668 /* Parse the rest of the linespec. */
2669 linespec_parse_basic (parser);
2671 if (parser->completion_tracker == NULL
2672 && PARSER_RESULT (parser)->function_symbols == NULL
2673 && PARSER_RESULT (parser)->labels.label_symbols == NULL
2674 && PARSER_EXPLICIT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN
2675 && PARSER_RESULT (parser)->minimal_symbols == NULL)
2677 /* The linespec didn't parse. Re-throw the file exception if
2679 if (file_exception.reason < 0)
2680 throw_exception (file_exception);
2682 /* Otherwise, the symbol is not found. */
2683 symbol_not_found_error (PARSER_EXPLICIT (parser)->function_name,
2684 PARSER_EXPLICIT (parser)->source_filename);
2689 /* Get the last token and record how much of the input was parsed,
2691 token = linespec_lexer_lex_one (parser);
2692 if (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD)
2693 unexpected_linespec_error (parser);
2694 else if (token.type == LSTOKEN_KEYWORD)
2696 /* Setup the completion word past the keyword. Lexing never
2697 advances past a keyword automatically, so skip it
2699 parser->completion_word
2700 = skip_spaces (skip_to_space (PARSER_STREAM (parser)));
2701 parser->complete_what = linespec_complete_what::EXPRESSION;
2704 /* Convert the data in PARSER_RESULT to SALs. */
2705 if (parser->completion_tracker == NULL)
2706 return convert_linespec_to_sals (PARSER_STATE (parser),
2707 PARSER_RESULT (parser));
2713 /* A constructor for linespec_state. */
2716 linespec_state_constructor (struct linespec_state *self,
2717 int flags, const struct language_defn *language,
2718 struct program_space *search_pspace,
2719 struct symtab *default_symtab,
2721 struct linespec_result *canonical)
2723 memset (self, 0, sizeof (*self));
2724 self->language = language;
2725 self->funfirstline = (flags & DECODE_LINE_FUNFIRSTLINE) ? 1 : 0;
2726 self->list_mode = (flags & DECODE_LINE_LIST_MODE) ? 1 : 0;
2727 self->search_pspace = search_pspace;
2728 self->default_symtab = default_symtab;
2729 self->default_line = default_line;
2730 self->canonical = canonical;
2731 self->program_space = current_program_space;
2732 self->addr_set = htab_create_alloc (10, hash_address_entry, eq_address_entry,
2733 xfree, xcalloc, xfree);
2734 self->is_linespec = 0;
2737 /* Initialize a new linespec parser. */
2740 linespec_parser_new (linespec_parser *parser,
2741 int flags, const struct language_defn *language,
2742 struct program_space *search_pspace,
2743 struct symtab *default_symtab,
2745 struct linespec_result *canonical)
2747 memset (parser, 0, sizeof (linespec_parser));
2748 parser->lexer.current.type = LSTOKEN_CONSUMED;
2749 memset (PARSER_RESULT (parser), 0, sizeof (struct linespec));
2750 PARSER_EXPLICIT (parser)->line_offset.sign = LINE_OFFSET_UNKNOWN;
2751 linespec_state_constructor (PARSER_STATE (parser), flags, language,
2753 default_symtab, default_line, canonical);
2756 /* A destructor for linespec_state. */
2759 linespec_state_destructor (struct linespec_state *self)
2761 htab_delete (self->addr_set);
2764 /* Delete a linespec parser. */
2767 linespec_parser_delete (void *arg)
2769 linespec_parser *parser = (linespec_parser *) arg;
2771 xfree (PARSER_EXPLICIT (parser)->source_filename);
2772 xfree (PARSER_EXPLICIT (parser)->label_name);
2773 xfree (PARSER_EXPLICIT (parser)->function_name);
2775 if (PARSER_RESULT (parser)->file_symtabs != NULL)
2776 VEC_free (symtab_ptr, PARSER_RESULT (parser)->file_symtabs);
2778 if (PARSER_RESULT (parser)->function_symbols != NULL)
2779 VEC_free (symbolp, PARSER_RESULT (parser)->function_symbols);
2781 if (PARSER_RESULT (parser)->minimal_symbols != NULL)
2782 VEC_free (bound_minimal_symbol_d, PARSER_RESULT (parser)->minimal_symbols);
2784 if (PARSER_RESULT (parser)->labels.label_symbols != NULL)
2785 VEC_free (symbolp, PARSER_RESULT (parser)->labels.label_symbols);
2787 if (PARSER_RESULT (parser)->labels.function_symbols != NULL)
2788 VEC_free (symbolp, PARSER_RESULT (parser)->labels.function_symbols);
2790 linespec_state_destructor (PARSER_STATE (parser));
2793 /* See description in linespec.h. */
2796 linespec_lex_to_end (const char **stringp)
2798 linespec_parser parser;
2799 struct cleanup *cleanup;
2800 linespec_token token;
2803 if (stringp == NULL || *stringp == NULL)
2806 linespec_parser_new (&parser, 0, current_language, NULL, NULL, 0, NULL);
2807 cleanup = make_cleanup (linespec_parser_delete, &parser);
2808 parser.lexer.saved_arg = *stringp;
2809 PARSER_STREAM (&parser) = orig = *stringp;
2813 /* Stop before any comma tokens; we need it to keep it
2814 as the next token in the string. */
2815 token = linespec_lexer_peek_token (&parser);
2816 if (token.type == LSTOKEN_COMMA)
2818 token = linespec_lexer_consume_token (&parser);
2820 while (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD);
2822 *stringp += PARSER_STREAM (&parser) - orig;
2823 do_cleanups (cleanup);
2826 /* See linespec.h. */
2829 linespec_complete_function (completion_tracker &tracker,
2830 const char *function,
2831 const char *source_filename)
2833 complete_symbol_mode mode = complete_symbol_mode::LINESPEC;
2834 symbol_name_match_type func_match_type = symbol_name_match_type::WILD;
2836 if (source_filename != NULL)
2838 collect_file_symbol_completion_matches (tracker, mode, func_match_type,
2839 function, function, source_filename);
2843 collect_symbol_completion_matches (tracker, mode, func_match_type,
2844 function, function);
2849 /* Helper for complete_linespec to simplify it. SOURCE_FILENAME is
2850 only meaningful if COMPONENT is FUNCTION. */
2853 complete_linespec_component (linespec_parser *parser,
2854 completion_tracker &tracker,
2856 linespec_complete_what component,
2857 const char *source_filename)
2859 if (component == linespec_complete_what::KEYWORD)
2861 complete_on_enum (tracker, linespec_keywords, text, text);
2863 else if (component == linespec_complete_what::EXPRESSION)
2866 = advance_to_expression_complete_word_point (tracker, text);
2867 complete_expression (tracker, text, word);
2869 else if (component == linespec_complete_what::FUNCTION)
2871 completion_list fn_list;
2873 linespec_complete_function (tracker, text, source_filename);
2874 if (source_filename == NULL)
2876 /* Haven't seen a source component, like in "b
2877 file.c:function[TAB]". Maybe this wasn't a function, but
2878 a filename instead, like "b file.[TAB]". */
2879 fn_list = complete_source_filenames (text);
2882 /* If we only have a single filename completion, append a ':' for
2883 the user, since that's the only thing that can usefully follow
2885 if (fn_list.size () == 1 && !tracker.have_completions ())
2887 char *fn = fn_list[0].release ();
2889 /* If we also need to append a quote char, it needs to be
2890 appended before the ':'. Append it now, and make ':' the
2891 new "quote" char. */
2892 if (tracker.quote_char ())
2894 char quote_char_str[2] = { tracker.quote_char () };
2896 fn = reconcat (fn, fn, quote_char_str, (char *) NULL);
2897 tracker.set_quote_char (':');
2900 fn = reconcat (fn, fn, ":", (char *) NULL);
2901 fn_list[0].reset (fn);
2903 /* Tell readline to skip appending a space. */
2904 tracker.set_suppress_append_ws (true);
2906 tracker.add_completions (std::move (fn_list));
2910 /* Helper for linespec_complete_label. Find labels that match
2911 LABEL_NAME in the function symbols listed in the PARSER, and add
2912 them to the tracker. */
2915 complete_label (completion_tracker &tracker,
2916 linespec_parser *parser,
2917 const char *label_name)
2919 VEC (symbolp) *label_function_symbols = NULL;
2920 VEC (symbolp) *labels
2921 = find_label_symbols (PARSER_STATE (parser),
2922 PARSER_RESULT (parser)->function_symbols,
2923 &label_function_symbols,
2928 VEC_iterate (symbolp, labels, ix, label); ++ix)
2930 char *match = xstrdup (SYMBOL_SEARCH_NAME (label));
2931 tracker.add_completion (gdb::unique_xmalloc_ptr<char> (match));
2933 VEC_free (symbolp, labels);
2936 /* See linespec.h. */
2939 linespec_complete_label (completion_tracker &tracker,
2940 const struct language_defn *language,
2941 const char *source_filename,
2942 const char *function_name,
2943 const char *label_name)
2945 linespec_parser parser;
2946 struct cleanup *cleanup;
2948 linespec_parser_new (&parser, 0, language, NULL, NULL, 0, NULL);
2949 cleanup = make_cleanup (linespec_parser_delete, &parser);
2951 line_offset unknown_offset = { 0, LINE_OFFSET_UNKNOWN };
2955 convert_explicit_location_to_linespec (PARSER_STATE (&parser),
2956 PARSER_RESULT (&parser),
2959 NULL, unknown_offset);
2961 CATCH (ex, RETURN_MASK_ERROR)
2963 do_cleanups (cleanup);
2968 complete_label (tracker, &parser, label_name);
2970 do_cleanups (cleanup);
2973 /* See description in linespec.h. */
2976 linespec_complete (completion_tracker &tracker, const char *text)
2978 linespec_parser parser;
2979 struct cleanup *cleanup;
2980 const char *orig = text;
2982 linespec_parser_new (&parser, 0, current_language, NULL, NULL, 0, NULL);
2983 cleanup = make_cleanup (linespec_parser_delete, &parser);
2984 parser.lexer.saved_arg = text;
2985 PARSER_STREAM (&parser) = text;
2987 parser.completion_tracker = &tracker;
2988 PARSER_STATE (&parser)->is_linespec = 1;
2990 /* Parse as much as possible. parser.completion_word will hold
2991 furthest completion point we managed to parse to. */
2994 parse_linespec (&parser, text);
2996 CATCH (except, RETURN_MASK_ERROR)
3001 if (parser.completion_quote_char != '\0'
3002 && parser.completion_quote_end != NULL
3003 && parser.completion_quote_end[1] == '\0')
3005 /* If completing a quoted string with the cursor right at
3006 terminating quote char, complete the completion word without
3007 interpretation, so that readline advances the cursor one
3008 whitespace past the quote, even if there's no match. This
3009 makes these cases behave the same:
3011 before: "b function()"
3012 after: "b function() "
3014 before: "b 'function()'"
3015 after: "b 'function()' "
3017 and trusts the user in this case:
3019 before: "b 'not_loaded_function_yet()'"
3020 after: "b 'not_loaded_function_yet()' "
3022 parser.complete_what = linespec_complete_what::NOTHING;
3023 parser.completion_quote_char = '\0';
3025 gdb::unique_xmalloc_ptr<char> text_copy
3026 (xstrdup (parser.completion_word));
3027 tracker.add_completion (std::move (text_copy));
3030 tracker.set_quote_char (parser.completion_quote_char);
3032 if (parser.complete_what == linespec_complete_what::LABEL)
3034 parser.complete_what = linespec_complete_what::NOTHING;
3036 const char *func_name = PARSER_EXPLICIT (&parser)->function_name;
3038 VEC (symbolp) *function_symbols;
3039 VEC (bound_minimal_symbol_d) *minimal_symbols;
3040 find_linespec_symbols (PARSER_STATE (&parser),
3041 PARSER_RESULT (&parser)->file_symtabs,
3043 &function_symbols, &minimal_symbols);
3045 PARSER_RESULT (&parser)->function_symbols = function_symbols;
3046 PARSER_RESULT (&parser)->minimal_symbols = minimal_symbols;
3048 complete_label (tracker, &parser, parser.completion_word);
3050 else if (parser.complete_what == linespec_complete_what::FUNCTION)
3052 /* While parsing/lexing, we didn't know whether the completion
3053 word completes to a unique function/source name already or
3057 "b function() <tab>"
3058 may need to complete either to:
3059 "b function() const"
3061 "b function() if/thread/task"
3065 may need to complete either to:
3066 "b foo template_fun<T>()"
3067 with "foo" being the template function's return type, or to:
3072 may need to complete either to a source file name:
3074 or this, also a filename, but a unique completion:
3076 or to a function name:
3079 Address that by completing assuming source or function, and
3080 seeing if we find a completion that matches exactly the
3081 completion word. If so, then it must be a function (see note
3082 below) and we advance the completion word to the end of input
3083 and switch to KEYWORD completion mode.
3085 Note: if we find a unique completion for a source filename,
3086 then it won't match the completion word, because the LCD will
3087 contain a trailing ':'. And if we're completing at or after
3088 the ':', then complete_linespec_component won't try to
3089 complete on source filenames. */
3091 const char *text = parser.completion_word;
3092 const char *word = parser.completion_word;
3094 complete_linespec_component (&parser, tracker,
3095 parser.completion_word,
3096 linespec_complete_what::FUNCTION,
3097 PARSER_EXPLICIT (&parser)->source_filename);
3099 parser.complete_what = linespec_complete_what::NOTHING;
3101 if (tracker.quote_char ())
3103 /* The function/file name was not close-quoted, so this
3104 can't be a keyword. Note: complete_linespec_component
3105 may have swapped the original quote char for ':' when we
3106 get here, but that still indicates the same. */
3108 else if (!tracker.have_completions ())
3111 size_t wordlen = strlen (parser.completion_word);
3114 = string_find_incomplete_keyword_at_end (linespec_keywords,
3115 parser.completion_word,
3120 && parser.completion_word[wordlen - 1] == ' '))
3122 parser.completion_word += key_start;
3123 parser.complete_what = linespec_complete_what::KEYWORD;
3126 else if (tracker.completes_to_completion_word (word))
3128 /* Skip the function and complete on keywords. */
3129 parser.completion_word += strlen (word);
3130 parser.complete_what = linespec_complete_what::KEYWORD;
3131 tracker.discard_completions ();
3135 tracker.advance_custom_word_point_by (parser.completion_word - orig);
3137 complete_linespec_component (&parser, tracker,
3138 parser.completion_word,
3139 parser.complete_what,
3140 PARSER_EXPLICIT (&parser)->source_filename);
3142 /* If we're past the "filename:function:label:offset" linespec, and
3143 didn't find any match, then assume the user might want to create
3144 a pending breakpoint anyway and offer the keyword
3146 if (!parser.completion_quote_char
3147 && (parser.complete_what == linespec_complete_what::FUNCTION
3148 || parser.complete_what == linespec_complete_what::LABEL
3149 || parser.complete_what == linespec_complete_what::NOTHING)
3150 && !tracker.have_completions ())
3153 = parser.completion_word + strlen (parser.completion_word);
3155 if (end > orig && end[-1] == ' ')
3157 tracker.advance_custom_word_point_by (end - parser.completion_word);
3159 complete_linespec_component (&parser, tracker, end,
3160 linespec_complete_what::KEYWORD,
3165 do_cleanups (cleanup);
3168 /* A helper function for decode_line_full and decode_line_1 to
3169 turn LOCATION into std::vector<symtab_and_line>. */
3171 static std::vector<symtab_and_line>
3172 event_location_to_sals (linespec_parser *parser,
3173 const struct event_location *location)
3175 std::vector<symtab_and_line> result;
3177 switch (event_location_type (location))
3179 case LINESPEC_LOCATION:
3181 PARSER_STATE (parser)->is_linespec = 1;
3184 result = parse_linespec (parser, get_linespec_location (location));
3186 CATCH (except, RETURN_MASK_ERROR)
3188 throw_exception (except);
3194 case ADDRESS_LOCATION:
3196 const char *addr_string = get_address_string_location (location);
3197 CORE_ADDR addr = get_address_location (location);
3199 if (addr_string != NULL)
3201 char *expr = xstrdup (addr_string);
3202 const char *const_expr = expr;
3203 struct cleanup *cleanup = make_cleanup (xfree, expr);
3205 addr = linespec_expression_to_pc (&const_expr);
3206 if (PARSER_STATE (parser)->canonical != NULL)
3207 PARSER_STATE (parser)->canonical->location
3208 = copy_event_location (location);
3210 do_cleanups (cleanup);
3213 result = convert_address_location_to_sals (PARSER_STATE (parser),
3218 case EXPLICIT_LOCATION:
3220 const struct explicit_location *explicit_loc;
3222 explicit_loc = get_explicit_location_const (location);
3223 result = convert_explicit_location_to_sals (PARSER_STATE (parser),
3224 PARSER_RESULT (parser),
3229 case PROBE_LOCATION:
3230 /* Probes are handled by their own decoders. */
3231 gdb_assert_not_reached ("attempt to decode probe location");
3235 gdb_assert_not_reached ("unhandled event location type");
3241 /* See linespec.h. */
3244 decode_line_full (const struct event_location *location, int flags,
3245 struct program_space *search_pspace,
3246 struct symtab *default_symtab,
3247 int default_line, struct linespec_result *canonical,
3248 const char *select_mode,
3251 struct cleanup *cleanups;
3252 VEC (const_char_ptr) *filters = NULL;
3253 linespec_parser parser;
3254 struct linespec_state *state;
3256 gdb_assert (canonical != NULL);
3257 /* The filter only makes sense for 'all'. */
3258 gdb_assert (filter == NULL || select_mode == multiple_symbols_all);
3259 gdb_assert (select_mode == NULL
3260 || select_mode == multiple_symbols_all
3261 || select_mode == multiple_symbols_ask
3262 || select_mode == multiple_symbols_cancel);
3263 gdb_assert ((flags & DECODE_LINE_LIST_MODE) == 0);
3265 linespec_parser_new (&parser, flags, current_language,
3266 search_pspace, default_symtab,
3267 default_line, canonical);
3268 cleanups = make_cleanup (linespec_parser_delete, &parser);
3270 scoped_restore_current_program_space restore_pspace;
3272 std::vector<symtab_and_line> result = event_location_to_sals (&parser,
3274 state = PARSER_STATE (&parser);
3276 gdb_assert (result.size () == 1 || canonical->pre_expanded);
3277 canonical->pre_expanded = 1;
3279 /* Arrange for allocated canonical names to be freed. */
3280 if (!result.empty ())
3284 make_cleanup (xfree, state->canonical_names);
3285 for (i = 0; i < result.size (); ++i)
3287 gdb_assert (state->canonical_names[i].suffix != NULL);
3288 make_cleanup (xfree, state->canonical_names[i].suffix);
3292 if (select_mode == NULL)
3294 if (interp_ui_out (top_level_interpreter ())->is_mi_like_p ())
3295 select_mode = multiple_symbols_all;
3297 select_mode = multiple_symbols_select_mode ();
3300 if (select_mode == multiple_symbols_all)
3304 make_cleanup (VEC_cleanup (const_char_ptr), &filters);
3305 VEC_safe_push (const_char_ptr, filters, filter);
3306 filter_results (state, &result, filters);
3309 convert_results_to_lsals (state, &result);
3312 decode_line_2 (state, &result, select_mode);
3314 do_cleanups (cleanups);
3317 /* See linespec.h. */
3319 std::vector<symtab_and_line>
3320 decode_line_1 (const struct event_location *location, int flags,
3321 struct program_space *search_pspace,
3322 struct symtab *default_symtab,
3325 linespec_parser parser;
3326 struct cleanup *cleanups;
3328 linespec_parser_new (&parser, flags, current_language,
3329 search_pspace, default_symtab,
3330 default_line, NULL);
3331 cleanups = make_cleanup (linespec_parser_delete, &parser);
3333 scoped_restore_current_program_space restore_pspace;
3335 std::vector<symtab_and_line> result = event_location_to_sals (&parser,
3338 do_cleanups (cleanups);
3342 /* See linespec.h. */
3344 std::vector<symtab_and_line>
3345 decode_line_with_current_source (const char *string, int flags)
3348 error (_("Empty line specification."));
3350 /* We use whatever is set as the current source line. We do not try
3351 and get a default source symtab+line or it will recursively call us! */
3352 symtab_and_line cursal = get_current_source_symtab_and_line ();
3354 event_location_up location = string_to_event_location (&string,
3356 std::vector<symtab_and_line> sals
3357 = decode_line_1 (location.get (), flags, NULL, cursal.symtab, cursal.line);
3360 error (_("Junk at end of line specification: %s"), string);
3365 /* See linespec.h. */
3367 std::vector<symtab_and_line>
3368 decode_line_with_last_displayed (const char *string, int flags)
3371 error (_("Empty line specification."));
3373 event_location_up location = string_to_event_location (&string,
3375 std::vector<symtab_and_line> sals
3376 = (last_displayed_sal_is_valid ()
3377 ? decode_line_1 (location.get (), flags, NULL,
3378 get_last_displayed_symtab (),
3379 get_last_displayed_line ())
3380 : decode_line_1 (location.get (), flags, NULL,
3381 (struct symtab *) NULL, 0));
3384 error (_("Junk at end of line specification: %s"), string);
3391 /* First, some functions to initialize stuff at the beggining of the
3395 initialize_defaults (struct symtab **default_symtab, int *default_line)
3397 if (*default_symtab == 0)
3399 /* Use whatever we have for the default source line. We don't use
3400 get_current_or_default_symtab_and_line as it can recurse and call
3402 struct symtab_and_line cursal =
3403 get_current_source_symtab_and_line ();
3405 *default_symtab = cursal.symtab;
3406 *default_line = cursal.line;
3412 /* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR,
3413 advancing EXP_PTR past any parsed text. */
3416 linespec_expression_to_pc (const char **exp_ptr)
3418 if (current_program_space->executing_startup)
3419 /* The error message doesn't really matter, because this case
3420 should only hit during breakpoint reset. */
3421 throw_error (NOT_FOUND_ERROR, _("cannot evaluate expressions while "
3422 "program space is in startup"));
3425 return value_as_address (parse_to_comma_and_eval (exp_ptr));
3430 /* Here's where we recognise an Objective-C Selector. An Objective C
3431 selector may be implemented by more than one class, therefore it
3432 may represent more than one method/function. This gives us a
3433 situation somewhat analogous to C++ overloading. If there's more
3434 than one method that could represent the selector, then use some of
3435 the existing C++ code to let the user choose one. */
3437 static std::vector<symtab_and_line>
3438 decode_objc (struct linespec_state *self, linespec_p ls, const char *arg)
3440 struct collect_info info;
3441 VEC (const_char_ptr) *symbol_names = NULL;
3442 const char *new_argptr;
3443 struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr),
3447 info.file_symtabs = NULL;
3448 VEC_safe_push (symtab_ptr, info.file_symtabs, NULL);
3449 make_cleanup (VEC_cleanup (symtab_ptr), &info.file_symtabs);
3450 info.result.symbols = NULL;
3451 info.result.minimal_symbols = NULL;
3453 new_argptr = find_imps (arg, &symbol_names);
3454 if (VEC_empty (const_char_ptr, symbol_names))
3456 do_cleanups (cleanup);
3460 add_all_symbol_names_from_pspace (&info, NULL, symbol_names,
3463 std::vector<symtab_and_line> values;
3464 if (!VEC_empty (symbolp, info.result.symbols)
3465 || !VEC_empty (bound_minimal_symbol_d, info.result.minimal_symbols))
3469 saved_arg = (char *) alloca (new_argptr - arg + 1);
3470 memcpy (saved_arg, arg, new_argptr - arg);
3471 saved_arg[new_argptr - arg] = '\0';
3473 ls->explicit_loc.function_name = xstrdup (saved_arg);
3474 ls->function_symbols = info.result.symbols;
3475 ls->minimal_symbols = info.result.minimal_symbols;
3476 values = convert_linespec_to_sals (self, ls);
3478 if (self->canonical)
3483 self->canonical->pre_expanded = 1;
3485 if (ls->explicit_loc.source_filename)
3487 holder = string_printf ("%s:%s",
3488 ls->explicit_loc.source_filename,
3490 str = holder.c_str ();
3495 self->canonical->location = new_linespec_location (&str);
3499 do_cleanups (cleanup);
3506 /* A function object that serves as symbol_found_callback_ftype
3507 callback for iterate_over_symbols. This is used by
3508 lookup_prefix_sym to collect type symbols. */
3509 class decode_compound_collector
3512 decode_compound_collector ()
3515 m_unique_syms = htab_create_alloc (1, htab_hash_pointer,
3516 htab_eq_pointer, NULL,
3520 ~decode_compound_collector ()
3522 if (m_unique_syms != NULL)
3523 htab_delete (m_unique_syms);
3526 /* Releases ownership of the collected symbols and returns them. */
3527 VEC (symbolp) *release_symbols ()
3529 VEC (symbolp) *res = m_symbols;
3534 /* Callable as a symbol_found_callback_ftype callback. */
3535 bool operator () (symbol *sym);
3538 /* A hash table of all symbols we found. We use this to avoid
3539 adding any symbol more than once. */
3540 htab_t m_unique_syms;
3542 /* The result vector. */
3543 VEC (symbolp) *m_symbols;
3547 decode_compound_collector::operator () (symbol *sym)
3552 if (SYMBOL_CLASS (sym) != LOC_TYPEDEF)
3553 return true; /* Continue iterating. */
3555 t = SYMBOL_TYPE (sym);
3556 t = check_typedef (t);
3557 if (TYPE_CODE (t) != TYPE_CODE_STRUCT
3558 && TYPE_CODE (t) != TYPE_CODE_UNION
3559 && TYPE_CODE (t) != TYPE_CODE_NAMESPACE)
3560 return true; /* Continue iterating. */
3562 slot = htab_find_slot (m_unique_syms, sym, INSERT);
3566 VEC_safe_push (symbolp, m_symbols, sym);
3569 return true; /* Continue iterating. */
3574 /* Return any symbols corresponding to CLASS_NAME in FILE_SYMTABS. */
3576 static VEC (symbolp) *
3577 lookup_prefix_sym (struct linespec_state *state, VEC (symtab_ptr) *file_symtabs,
3578 const char *class_name)
3582 decode_compound_collector collector;
3584 lookup_name_info lookup_name (class_name, symbol_name_match_type::FULL);
3586 for (ix = 0; VEC_iterate (symtab_ptr, file_symtabs, ix, elt); ++ix)
3590 iterate_over_all_matching_symtabs (state, lookup_name,
3591 STRUCT_DOMAIN, ALL_DOMAIN,
3592 NULL, false, collector);
3593 iterate_over_all_matching_symtabs (state, lookup_name,
3594 VAR_DOMAIN, ALL_DOMAIN,
3595 NULL, false, collector);
3599 /* Program spaces that are executing startup should have
3600 been filtered out earlier. */
3601 gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup);
3602 set_current_program_space (SYMTAB_PSPACE (elt));
3603 iterate_over_file_blocks (elt, lookup_name, STRUCT_DOMAIN, collector);
3604 iterate_over_file_blocks (elt, lookup_name, VAR_DOMAIN, collector);
3608 return collector.release_symbols ();
3611 /* A qsort comparison function for symbols. The resulting order does
3612 not actually matter; we just need to be able to sort them so that
3613 symbols with the same program space end up next to each other. */
3616 compare_symbols (const void *a, const void *b)
3618 struct symbol * const *sa = (struct symbol * const*) a;
3619 struct symbol * const *sb = (struct symbol * const*) b;
3622 uia = (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sa));
3623 uib = (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sb));
3630 uia = (uintptr_t) *sa;
3631 uib = (uintptr_t) *sb;
3641 /* Like compare_symbols but for minimal symbols. */
3644 compare_msymbols (const void *a, const void *b)
3646 const struct bound_minimal_symbol *sa
3647 = (const struct bound_minimal_symbol *) a;
3648 const struct bound_minimal_symbol *sb
3649 = (const struct bound_minimal_symbol *) b;
3652 uia = (uintptr_t) sa->objfile->pspace;
3653 uib = (uintptr_t) sa->objfile->pspace;
3660 uia = (uintptr_t) sa->minsym;
3661 uib = (uintptr_t) sb->minsym;
3671 /* Look for all the matching instances of each symbol in NAMES. Only
3672 instances from PSPACE are considered; other program spaces are
3673 handled by our caller. If PSPACE is NULL, then all program spaces
3674 are considered. Results are stored into INFO. */
3677 add_all_symbol_names_from_pspace (struct collect_info *info,
3678 struct program_space *pspace,
3679 VEC (const_char_ptr) *names,
3680 enum search_domain search_domain)
3685 for (ix = 0; VEC_iterate (const_char_ptr, names, ix, iter); ++ix)
3686 add_matching_symbols_to_info (iter,
3687 symbol_name_match_type::FULL,
3688 search_domain, info, pspace);
3692 find_superclass_methods (VEC (typep) *superclasses,
3693 const char *name, enum language name_lang,
3694 VEC (const_char_ptr) **result_names)
3696 int old_len = VEC_length (const_char_ptr, *result_names);
3697 VEC (typep) *iter_classes;
3698 struct cleanup *cleanup = make_cleanup (null_cleanup, NULL);
3700 iter_classes = superclasses;
3703 VEC (typep) *new_supers = NULL;
3707 make_cleanup (VEC_cleanup (typep), &new_supers);
3708 for (ix = 0; VEC_iterate (typep, iter_classes, ix, t); ++ix)
3709 find_methods (t, name_lang, name, result_names, &new_supers);
3711 if (VEC_length (const_char_ptr, *result_names) != old_len
3712 || VEC_empty (typep, new_supers))
3715 iter_classes = new_supers;
3718 do_cleanups (cleanup);
3721 /* This finds the method METHOD_NAME in the class CLASS_NAME whose type is
3722 given by one of the symbols in SYM_CLASSES. Matches are returned
3723 in SYMBOLS (for debug symbols) and MINSYMS (for minimal symbols). */
3726 find_method (struct linespec_state *self, VEC (symtab_ptr) *file_symtabs,
3727 const char *class_name, const char *method_name,
3728 VEC (symbolp) *sym_classes, VEC (symbolp) **symbols,
3729 VEC (bound_minimal_symbol_d) **minsyms)
3732 struct cleanup *cleanup = make_cleanup (null_cleanup, NULL);
3734 int last_result_len;
3735 VEC (typep) *superclass_vec;
3736 VEC (const_char_ptr) *result_names;
3737 struct collect_info info;
3739 /* Sort symbols so that symbols with the same program space are next
3741 qsort (VEC_address (symbolp, sym_classes),
3742 VEC_length (symbolp, sym_classes),
3747 info.file_symtabs = file_symtabs;
3748 info.result.symbols = NULL;
3749 info.result.minimal_symbols = NULL;
3751 /* Iterate over all the types, looking for the names of existing
3752 methods matching METHOD_NAME. If we cannot find a direct method in a
3753 given program space, then we consider inherited methods; this is
3754 not ideal (ideal would be to respect C++ hiding rules), but it
3755 seems good enough and is what GDB has historically done. We only
3756 need to collect the names because later we find all symbols with
3757 those names. This loop is written in a somewhat funny way
3758 because we collect data across the program space before deciding
3760 superclass_vec = NULL;
3761 make_cleanup (VEC_cleanup (typep), &superclass_vec);
3762 result_names = NULL;
3763 make_cleanup (VEC_cleanup (const_char_ptr), &result_names);
3764 last_result_len = 0;
3765 for (ix = 0; VEC_iterate (symbolp, sym_classes, ix, sym); ++ix)
3768 struct program_space *pspace;
3770 /* Program spaces that are executing startup should have
3771 been filtered out earlier. */
3772 pspace = SYMTAB_PSPACE (symbol_symtab (sym));
3773 gdb_assert (!pspace->executing_startup);
3774 set_current_program_space (pspace);
3775 t = check_typedef (SYMBOL_TYPE (sym));
3776 find_methods (t, SYMBOL_LANGUAGE (sym),
3777 method_name, &result_names, &superclass_vec);
3779 /* Handle all items from a single program space at once; and be
3780 sure not to miss the last batch. */
3781 if (ix == VEC_length (symbolp, sym_classes) - 1
3783 != SYMTAB_PSPACE (symbol_symtab (VEC_index (symbolp, sym_classes,
3786 /* If we did not find a direct implementation anywhere in
3787 this program space, consider superclasses. */
3788 if (VEC_length (const_char_ptr, result_names) == last_result_len)
3789 find_superclass_methods (superclass_vec, method_name,
3790 SYMBOL_LANGUAGE (sym), &result_names);
3792 /* We have a list of candidate symbol names, so now we
3793 iterate over the symbol tables looking for all
3794 matches in this pspace. */
3795 add_all_symbol_names_from_pspace (&info, pspace, result_names,
3798 VEC_truncate (typep, superclass_vec, 0);
3799 last_result_len = VEC_length (const_char_ptr, result_names);
3803 if (!VEC_empty (symbolp, info.result.symbols)
3804 || !VEC_empty (bound_minimal_symbol_d, info.result.minimal_symbols))
3806 *symbols = info.result.symbols;
3807 *minsyms = info.result.minimal_symbols;
3808 do_cleanups (cleanup);
3812 /* Throw an NOT_FOUND_ERROR. This will be caught by the caller
3813 and other attempts to locate the symbol will be made. */
3814 throw_error (NOT_FOUND_ERROR, _("see caller, this text doesn't matter"));
3821 /* This function object is a callback for iterate_over_symtabs, used
3822 when collecting all matching symtabs. */
3824 class symtab_collector
3830 m_symtab_table = htab_create (1, htab_hash_pointer, htab_eq_pointer,
3834 ~symtab_collector ()
3836 if (m_symtab_table != NULL)
3837 htab_delete (m_symtab_table);
3840 /* Callable as a symbol_found_callback_ftype callback. */
3841 bool operator () (symtab *sym);
3843 /* Releases ownership of the collected symtabs and returns them. */
3844 VEC (symtab_ptr) *release_symtabs ()
3846 VEC (symtab_ptr) *res = m_symtabs;
3852 /* The result vector of symtabs. */
3853 VEC (symtab_ptr) *m_symtabs;
3855 /* This is used to ensure the symtabs are unique. */
3856 htab_t m_symtab_table;
3860 symtab_collector::operator () (struct symtab *symtab)
3864 slot = htab_find_slot (m_symtab_table, symtab, INSERT);
3868 VEC_safe_push (symtab_ptr, m_symtabs, symtab);
3876 /* Given a file name, return a VEC of all matching symtabs. If
3877 SEARCH_PSPACE is not NULL, the search is restricted to just that
3880 static VEC (symtab_ptr) *
3881 collect_symtabs_from_filename (const char *file,
3882 struct program_space *search_pspace)
3884 symtab_collector collector;
3886 /* Find that file's data. */
3887 if (search_pspace == NULL)
3889 struct program_space *pspace;
3891 ALL_PSPACES (pspace)
3893 if (pspace->executing_startup)
3896 set_current_program_space (pspace);
3897 iterate_over_symtabs (file, collector);
3902 set_current_program_space (search_pspace);
3903 iterate_over_symtabs (file, collector);
3906 return collector.release_symtabs ();
3909 /* Return all the symtabs associated to the FILENAME. If SEARCH_PSPACE is
3910 not NULL, the search is restricted to just that program space. */
3912 static VEC (symtab_ptr) *
3913 symtabs_from_filename (const char *filename,
3914 struct program_space *search_pspace)
3916 VEC (symtab_ptr) *result;
3918 result = collect_symtabs_from_filename (filename, search_pspace);
3920 if (VEC_empty (symtab_ptr, result))
3922 if (!have_full_symbols () && !have_partial_symbols ())
3923 throw_error (NOT_FOUND_ERROR,
3924 _("No symbol table is loaded. "
3925 "Use the \"file\" command."));
3926 source_file_not_found_error (filename);
3932 /* Look up a function symbol named NAME in symtabs FILE_SYMTABS. Matching
3933 debug symbols are returned in SYMBOLS. Matching minimal symbols are
3934 returned in MINSYMS. */
3937 find_function_symbols (struct linespec_state *state,
3938 VEC (symtab_ptr) *file_symtabs, const char *name,
3939 VEC (symbolp) **symbols,
3940 VEC (bound_minimal_symbol_d) **minsyms)
3942 struct collect_info info;
3943 VEC (const_char_ptr) *symbol_names = NULL;
3944 struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr),
3948 info.result.symbols = NULL;
3949 info.result.minimal_symbols = NULL;
3950 info.file_symtabs = file_symtabs;
3952 /* Try NAME as an Objective-C selector. */
3953 find_imps (name, &symbol_names);
3954 if (!VEC_empty (const_char_ptr, symbol_names))
3955 add_all_symbol_names_from_pspace (&info, state->search_pspace,
3956 symbol_names, FUNCTIONS_DOMAIN);
3958 add_matching_symbols_to_info (name, symbol_name_match_type::WILD,
3960 &info, state->search_pspace);
3962 do_cleanups (cleanup);
3964 if (VEC_empty (symbolp, info.result.symbols))
3966 VEC_free (symbolp, info.result.symbols);
3970 *symbols = info.result.symbols;
3972 if (VEC_empty (bound_minimal_symbol_d, info.result.minimal_symbols))
3974 VEC_free (bound_minimal_symbol_d, info.result.minimal_symbols);
3978 *minsyms = info.result.minimal_symbols;
3981 /* Find all symbols named NAME in FILE_SYMTABS, returning debug symbols
3982 in SYMBOLS and minimal symbols in MINSYMS. */
3985 find_linespec_symbols (struct linespec_state *state,
3986 VEC (symtab_ptr) *file_symtabs,
3987 const char *lookup_name,
3988 VEC (symbolp) **symbols,
3989 VEC (bound_minimal_symbol_d) **minsyms)
3991 std::string canon = cp_canonicalize_string_no_typedefs (lookup_name);
3992 if (!canon.empty ())
3993 lookup_name = canon.c_str ();
3995 /* It's important to not call expand_symtabs_matching unnecessarily
3996 as it can really slow things down (by unnecessarily expanding
3997 potentially 1000s of symtabs, which when debugging some apps can
3998 cost 100s of seconds). Avoid this to some extent by *first* calling
3999 find_function_symbols, and only if that doesn't find anything
4000 *then* call find_method. This handles two important cases:
4001 1) break (anonymous namespace)::foo
4002 2) break class::method where method is in class (and not a baseclass) */
4004 find_function_symbols (state, file_symtabs, lookup_name,
4007 /* If we were unable to locate a symbol of the same name, try dividing
4008 the name into class and method names and searching the class and its
4010 if (VEC_empty (symbolp, *symbols)
4011 && VEC_empty (bound_minimal_symbol_d, *minsyms))
4013 std::string klass, method;
4014 const char *last, *p, *scope_op;
4015 VEC (symbolp) *classes;
4017 /* See if we can find a scope operator and break this symbol
4018 name into namespaces${SCOPE_OPERATOR}class_name and method_name. */
4020 p = find_toplevel_string (lookup_name, scope_op);
4026 p = find_toplevel_string (p + strlen (scope_op), scope_op);
4029 /* If no scope operator was found, there is nothing more we can do;
4030 we already attempted to lookup the entire name as a symbol
4035 /* LOOKUP_NAME points to the class name.
4036 LAST points to the method name. */
4037 klass = std::string (lookup_name, last - lookup_name);
4039 /* Skip past the scope operator. */
4040 last += strlen (scope_op);
4043 /* Find a list of classes named KLASS. */
4044 classes = lookup_prefix_sym (state, file_symtabs, klass.c_str ());
4045 struct cleanup *old_chain
4046 = make_cleanup (VEC_cleanup (symbolp), &classes);
4048 if (!VEC_empty (symbolp, classes))
4050 /* Now locate a list of suitable methods named METHOD. */
4053 find_method (state, file_symtabs,
4054 klass.c_str (), method.c_str (),
4055 classes, symbols, minsyms);
4058 /* If successful, we're done. If NOT_FOUND_ERROR
4059 was not thrown, rethrow the exception that we did get. */
4060 CATCH (except, RETURN_MASK_ERROR)
4062 if (except.error != NOT_FOUND_ERROR)
4063 throw_exception (except);
4068 do_cleanups (old_chain);
4072 /* Helper for find_label_symbols. Find all labels that match name
4073 NAME in BLOCK. Return all labels that match in FUNCTION_SYMBOLS.
4074 Return the actual function symbol in which the label was found in
4075 LABEL_FUNC_RET. If COMPLETION_MODE is true, then NAME is
4076 interpreted as a label name prefix. Otherwise, only a label named
4077 exactly NAME match. */
4080 find_label_symbols_in_block (const struct block *block,
4081 const char *name, struct symbol *fn_sym,
4082 bool completion_mode,
4083 VEC (symbolp) **result,
4084 VEC (symbolp) **label_funcs_ret)
4086 if (completion_mode)
4088 struct block_iterator iter;
4090 size_t name_len = strlen (name);
4092 int (*cmp) (const char *, const char *, size_t);
4093 cmp = case_sensitivity == case_sensitive_on ? strncmp : strncasecmp;
4095 ALL_BLOCK_SYMBOLS (block, iter, sym)
4097 if (symbol_matches_domain (SYMBOL_LANGUAGE (sym),
4098 SYMBOL_DOMAIN (sym), LABEL_DOMAIN)
4099 && cmp (SYMBOL_SEARCH_NAME (sym), name, name_len) == 0)
4101 VEC_safe_push (symbolp, *result, sym);
4102 VEC_safe_push (symbolp, *label_funcs_ret, fn_sym);
4108 struct symbol *sym = lookup_symbol (name, block, LABEL_DOMAIN, 0).symbol;
4112 VEC_safe_push (symbolp, *result, sym);
4113 VEC_safe_push (symbolp, *label_funcs_ret, fn_sym);
4118 /* Return all labels that match name NAME in FUNCTION_SYMBOLS. Return
4119 the actual function symbol in which the label was found in
4120 LABEL_FUNC_RET. If COMPLETION_MODE is true, then NAME is
4121 interpreted as a label name prefix. Otherwise, only labels named
4122 exactly NAME match. */
4124 static VEC (symbolp) *
4125 find_label_symbols (struct linespec_state *self,
4126 VEC (symbolp) *function_symbols,
4127 VEC (symbolp) **label_funcs_ret, const char *name,
4128 bool completion_mode)
4131 const struct block *block;
4133 struct symbol *fn_sym;
4134 VEC (symbolp) *result = NULL;
4136 if (function_symbols == NULL)
4138 set_current_program_space (self->program_space);
4139 block = get_current_search_block ();
4142 block && !BLOCK_FUNCTION (block);
4143 block = BLOCK_SUPERBLOCK (block))
4147 fn_sym = BLOCK_FUNCTION (block);
4149 find_label_symbols_in_block (block, name, fn_sym, completion_mode,
4150 &result, label_funcs_ret);
4155 VEC_iterate (symbolp, function_symbols, ix, fn_sym); ++ix)
4157 set_current_program_space (SYMTAB_PSPACE (symbol_symtab (fn_sym)));
4158 block = SYMBOL_BLOCK_VALUE (fn_sym);
4160 find_label_symbols_in_block (block, name, fn_sym, completion_mode,
4161 &result, label_funcs_ret);
4170 /* A helper for create_sals_line_offset that handles the 'list_mode' case. */
4172 static std::vector<symtab_and_line>
4173 decode_digits_list_mode (struct linespec_state *self,
4175 struct symtab_and_line val)
4180 gdb_assert (self->list_mode);
4182 std::vector<symtab_and_line> values;
4184 for (ix = 0; VEC_iterate (symtab_ptr, ls->file_symtabs, ix, elt);
4187 /* The logic above should ensure this. */
4188 gdb_assert (elt != NULL);
4190 set_current_program_space (SYMTAB_PSPACE (elt));
4192 /* Simplistic search just for the list command. */
4193 val.symtab = find_line_symtab (elt, val.line, NULL, NULL);
4194 if (val.symtab == NULL)
4196 val.pspace = SYMTAB_PSPACE (elt);
4198 val.explicit_line = 1;
4200 add_sal_to_sals (self, &values, &val, NULL, 0);
4206 /* A helper for create_sals_line_offset that iterates over the symtabs,
4207 adding lines to the VEC. */
4209 static std::vector<symtab_and_line>
4210 decode_digits_ordinary (struct linespec_state *self,
4213 struct linetable_entry **best_entry)
4218 std::vector<symtab_and_line> sals;
4219 for (ix = 0; VEC_iterate (symtab_ptr, ls->file_symtabs, ix, elt); ++ix)
4221 std::vector<CORE_ADDR> pcs;
4223 /* The logic above should ensure this. */
4224 gdb_assert (elt != NULL);
4226 set_current_program_space (SYMTAB_PSPACE (elt));
4228 pcs = find_pcs_for_symtab_line (elt, line, best_entry);
4229 for (CORE_ADDR pc : pcs)
4231 symtab_and_line sal;
4232 sal.pspace = SYMTAB_PSPACE (elt);
4236 sals.push_back (std::move (sal));
4245 /* Return the line offset represented by VARIABLE. */
4247 static struct line_offset
4248 linespec_parse_variable (struct linespec_state *self, const char *variable)
4252 struct line_offset offset = {0, LINE_OFFSET_NONE};
4254 p = (variable[1] == '$') ? variable + 2 : variable + 1;
4257 while (*p >= '0' && *p <= '9')
4259 if (!*p) /* Reached end of token without hitting non-digit. */
4261 /* We have a value history reference. */
4262 struct value *val_history;
4264 sscanf ((variable[1] == '$') ? variable + 2 : variable + 1, "%d", &index);
4266 = access_value_history ((variable[1] == '$') ? -index : index);
4267 if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT)
4268 error (_("History values used in line "
4269 "specs must have integer values."));
4270 offset.offset = value_as_long (val_history);
4274 /* Not all digits -- may be user variable/function or a
4275 convenience variable. */
4277 struct internalvar *ivar;
4279 /* Try it as a convenience variable. If it is not a convenience
4280 variable, return and allow normal symbol lookup to occur. */
4281 ivar = lookup_only_internalvar (variable + 1);
4283 /* No internal variable with that name. Mark the offset
4284 as unknown to allow the name to be looked up as a symbol. */
4285 offset.sign = LINE_OFFSET_UNKNOWN;
4288 /* We found a valid variable name. If it is not an integer,
4290 if (!get_internalvar_integer (ivar, &valx))
4291 error (_("Convenience variables used in line "
4292 "specs must have integer values."));
4294 offset.offset = valx;
4302 /* We've found a minimal symbol MSYMBOL in OBJFILE to associate with our
4303 linespec; return the SAL in RESULT. This function should return SALs
4304 matching those from find_function_start_sal, otherwise false
4305 multiple-locations breakpoints could be placed. */
4308 minsym_found (struct linespec_state *self, struct objfile *objfile,
4309 struct minimal_symbol *msymbol,
4310 std::vector<symtab_and_line> *result)
4312 struct symtab_and_line sal;
4314 CORE_ADDR func_addr;
4315 if (msymbol_is_function (objfile, msymbol, &func_addr))
4317 sal = find_pc_sect_line (func_addr, NULL, 0);
4319 if (self->funfirstline)
4321 if (sal.symtab != NULL
4322 && (COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (sal.symtab))
4323 || SYMTAB_LANGUAGE (sal.symtab) == language_asm))
4325 struct gdbarch *gdbarch = get_objfile_arch (objfile);
4328 if (gdbarch_skip_entrypoint_p (gdbarch))
4329 sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc);
4332 skip_prologue_sal (&sal);
4337 sal.objfile = objfile;
4338 sal.pc = MSYMBOL_VALUE_ADDRESS (objfile, msymbol);
4339 sal.pspace = current_program_space;
4340 sal.section = MSYMBOL_OBJ_SECTION (objfile, msymbol);
4343 if (maybe_add_address (self->addr_set, objfile->pspace, sal.pc))
4344 add_sal_to_sals (self, result, &sal, MSYMBOL_NATURAL_NAME (msymbol), 0);
4347 /* A helper struct to pass some data through
4348 iterate_over_minimal_symbols. */
4350 struct collect_minsyms
4352 /* The objfile we're examining. */
4353 struct objfile *objfile;
4355 /* Only search the given symtab, or NULL to search for all symbols. */
4356 struct symtab *symtab;
4358 /* The funfirstline setting from the initial call. */
4361 /* The list_mode setting from the initial call. */
4364 /* The resulting symbols. */
4365 VEC (bound_minimal_symbol_d) *msyms;
4368 /* A helper function to classify a minimal_symbol_type according to
4372 classify_mtype (enum minimal_symbol_type t)
4379 /* Intermediate priority. */
4382 case mst_solib_trampoline:
4383 /* Lowest priority. */
4387 /* Highest priority. */
4392 /* Callback for qsort that sorts symbols by priority. */
4395 compare_msyms (const void *a, const void *b)
4397 const bound_minimal_symbol_d *moa = (const bound_minimal_symbol_d *) a;
4398 const bound_minimal_symbol_d *mob = (const bound_minimal_symbol_d *) b;
4399 enum minimal_symbol_type ta = MSYMBOL_TYPE (moa->minsym);
4400 enum minimal_symbol_type tb = MSYMBOL_TYPE (mob->minsym);
4402 return classify_mtype (ta) - classify_mtype (tb);
4405 /* Callback for iterate_over_minimal_symbols that adds the symbol to
4409 add_minsym (struct minimal_symbol *minsym, void *d)
4411 struct collect_minsyms *info = (struct collect_minsyms *) d;
4413 if (info->symtab != NULL)
4415 /* We're looking for a label for which we don't have debug
4417 CORE_ADDR func_addr;
4418 if (msymbol_is_function (info->objfile, minsym, &func_addr))
4420 symtab_and_line sal = find_pc_sect_line (func_addr, NULL, 0);
4422 if (info->symtab != sal.symtab)
4427 /* Exclude data symbols when looking for breakpoint locations. */
4428 if (!info->list_mode && !msymbol_is_function (info->objfile, minsym))
4431 bound_minimal_symbol_d mo = {minsym, info->objfile};
4432 VEC_safe_push (bound_minimal_symbol_d, info->msyms, &mo);
4435 /* Search for minimal symbols called NAME. If SEARCH_PSPACE
4436 is not NULL, the search is restricted to just that program
4439 If SYMTAB is NULL, search all objfiles, otherwise
4440 restrict results to the given SYMTAB. */
4443 search_minsyms_for_name (struct collect_info *info,
4444 const lookup_name_info &name,
4445 struct program_space *search_pspace,
4446 struct symtab *symtab)
4448 struct collect_minsyms local;
4449 struct cleanup *cleanup;
4451 memset (&local, 0, sizeof (local));
4452 local.funfirstline = info->state->funfirstline;
4453 local.list_mode = info->state->list_mode;
4454 local.symtab = symtab;
4456 cleanup = make_cleanup (VEC_cleanup (bound_minimal_symbol_d), &local.msyms);
4460 struct program_space *pspace;
4462 ALL_PSPACES (pspace)
4464 struct objfile *objfile;
4466 if (search_pspace != NULL && search_pspace != pspace)
4468 if (pspace->executing_startup)
4471 set_current_program_space (pspace);
4473 ALL_OBJFILES (objfile)
4475 local.objfile = objfile;
4476 iterate_over_minimal_symbols (objfile, name, add_minsym, &local);
4482 if (search_pspace == NULL || SYMTAB_PSPACE (symtab) == search_pspace)
4484 set_current_program_space (SYMTAB_PSPACE (symtab));
4485 local.objfile = SYMTAB_OBJFILE(symtab);
4486 iterate_over_minimal_symbols (local.objfile, name, add_minsym, &local);
4490 if (!VEC_empty (bound_minimal_symbol_d, local.msyms))
4494 bound_minimal_symbol_d *item;
4496 qsort (VEC_address (bound_minimal_symbol_d, local.msyms),
4497 VEC_length (bound_minimal_symbol_d, local.msyms),
4498 sizeof (bound_minimal_symbol_d),
4501 /* Now the minsyms are in classification order. So, we walk
4502 over them and process just the minsyms with the same
4503 classification as the very first minsym in the list. */
4504 item = VEC_index (bound_minimal_symbol_d, local.msyms, 0);
4505 classification = classify_mtype (MSYMBOL_TYPE (item->minsym));
4508 VEC_iterate (bound_minimal_symbol_d, local.msyms, ix, item);
4511 if (classify_mtype (MSYMBOL_TYPE (item->minsym)) != classification)
4514 VEC_safe_push (bound_minimal_symbol_d,
4515 info->result.minimal_symbols, item);
4519 do_cleanups (cleanup);
4522 /* A helper function to add all symbols matching NAME to INFO. If
4523 PSPACE is not NULL, the search is restricted to just that program
4527 add_matching_symbols_to_info (const char *name,
4528 symbol_name_match_type name_match_type,
4529 enum search_domain search_domain,
4530 struct collect_info *info,
4531 struct program_space *pspace)
4536 lookup_name_info lookup_name (name, name_match_type);
4538 for (ix = 0; VEC_iterate (symtab_ptr, info->file_symtabs, ix, elt); ++ix)
4542 iterate_over_all_matching_symtabs (info->state, lookup_name,
4543 VAR_DOMAIN, search_domain,
4544 pspace, true, [&] (symbol *sym)
4545 { return info->add_symbol (sym); });
4546 search_minsyms_for_name (info, lookup_name, pspace, NULL);
4548 else if (pspace == NULL || pspace == SYMTAB_PSPACE (elt))
4550 int prev_len = VEC_length (symbolp, info->result.symbols);
4552 /* Program spaces that are executing startup should have
4553 been filtered out earlier. */
4554 gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup);
4555 set_current_program_space (SYMTAB_PSPACE (elt));
4556 iterate_over_file_blocks (elt, lookup_name, VAR_DOMAIN,
4558 { return info->add_symbol (sym); });
4560 /* If no new symbols were found in this iteration and this symtab
4561 is in assembler, we might actually be looking for a label for
4562 which we don't have debug info. Check for a minimal symbol in
4564 if (prev_len == VEC_length (symbolp, info->result.symbols)
4565 && elt->language == language_asm)
4566 search_minsyms_for_name (info, lookup_name, pspace, elt);
4573 /* Now come some functions that are called from multiple places within
4577 symbol_to_sal (struct symtab_and_line *result,
4578 int funfirstline, struct symbol *sym)
4580 if (SYMBOL_CLASS (sym) == LOC_BLOCK)
4582 *result = find_function_start_sal (sym, funfirstline);
4587 if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0)
4590 result->symtab = symbol_symtab (sym);
4591 result->symbol = sym;
4592 result->line = SYMBOL_LINE (sym);
4593 result->pc = SYMBOL_VALUE_ADDRESS (sym);
4594 result->pspace = SYMTAB_PSPACE (result->symtab);
4595 result->explicit_pc = 1;
4598 else if (funfirstline)
4602 else if (SYMBOL_LINE (sym) != 0)
4604 /* We know its line number. */
4606 result->symtab = symbol_symtab (sym);
4607 result->symbol = sym;
4608 result->line = SYMBOL_LINE (sym);
4609 result->pc = SYMBOL_VALUE_ADDRESS (sym);
4610 result->pspace = SYMTAB_PSPACE (result->symtab);
4618 linespec_result::~linespec_result ()
4620 for (linespec_sals &lsal : lsals)
4621 xfree (lsal.canonical);
4624 /* Return the quote characters permitted by the linespec parser. */
4627 get_gdb_linespec_parser_quote_characters (void)
4629 return linespec_quote_characters;