1 /* Parser for linespec for the GNU debugger, GDB.
3 Copyright (C) 1986-2013 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"
36 #include "exceptions.h"
39 #include "mi/mi-cmds.h"
41 #include "arch-utils.h"
43 #include "cli/cli-utils.h"
44 #include "filenames.h"
48 typedef struct symbol *symbolp;
51 typedef struct type *typep;
54 /* An address entry is used to ensure that any given location is only
55 added to the result a single time. It holds an address and the
56 program space from which the address came. */
60 struct program_space *pspace;
64 /* A helper struct which just holds a minimal symbol and the object
65 file from which it came. */
67 typedef struct minsym_and_objfile
69 struct minimal_symbol *minsym;
70 struct objfile *objfile;
71 } minsym_and_objfile_d;
73 DEF_VEC_O (minsym_and_objfile_d);
75 /* An enumeration of possible signs for a line offset. */
76 enum offset_relative_sign
81 /* A plus sign ("+") */
84 /* A minus sign ("-") */
87 /* A special "sign" for unspecified offset. */
91 /* A line offset in a linespec. */
95 /* Line offset and any specified sign. */
97 enum offset_relative_sign sign;
100 /* A linespec. Elements of this structure are filled in by a parser
101 (either parse_linespec or some other function). The structure is
102 then converted into SALs by convert_linespec_to_sals. */
106 /* An expression and the resulting PC. Specifying an expression
107 currently precludes the use of other members. */
109 /* The expression entered by the user. */
110 const char *expression;
112 /* The resulting PC expression derived from evaluating EXPRESSION. */
115 /* Any specified file symtabs. */
117 /* The user-supplied source filename or NULL if none was specified. */
118 const char *source_filename;
120 /* The list of symtabs to search to which to limit the search. May not
121 be NULL. If SOURCE_FILENAME is NULL (no user-specified filename),
122 FILE_SYMTABS should contain one single NULL member. This will
123 cause the code to use the default symtab. */
124 VEC (symtab_ptr) *file_symtabs;
126 /* The name of a function or method and any matching symbols. */
128 /* The user-specified function name. If no function name was
129 supplied, this may be NULL. */
130 const char *function_name;
132 /* A list of matching function symbols and minimal symbols. Both lists
133 may be NULL if no matching symbols were found. */
134 VEC (symbolp) *function_symbols;
135 VEC (minsym_and_objfile_d) *minimal_symbols;
137 /* The name of a label and matching symbols. */
139 /* The user-specified label name. */
140 const char *label_name;
142 /* A structure of matching label symbols and the corresponding
143 function symbol in which the label was found. Both may be NULL
144 or both must be non-NULL. */
147 VEC (symbolp) *label_symbols;
148 VEC (symbolp) *function_symbols;
151 /* Line offset. It may be LINE_OFFSET_UNKNOWN, meaning that no
152 offset was specified. */
153 struct line_offset line_offset;
155 typedef struct linespec *linespec_p;
157 /* A canonical linespec represented as a symtab-related string.
159 Each entry represents the "SYMTAB:SUFFIX" linespec string.
160 SYMTAB can be converted for example by symtab_to_fullname or
161 symtab_to_filename_for_display as needed. */
163 struct linespec_canonical_name
165 /* Remaining text part of the linespec string. */
168 /* If NULL then SUFFIX is the whole linespec string. */
169 struct symtab *symtab;
172 /* An instance of this is used to keep all state while linespec
173 operates. This instance is passed around as a 'this' pointer to
174 the various implementation methods. */
176 struct linespec_state
178 /* The language in use during linespec processing. */
179 const struct language_defn *language;
181 /* The program space as seen when the module was entered. */
182 struct program_space *program_space;
184 /* The default symtab to use, if no other symtab is specified. */
185 struct symtab *default_symtab;
187 /* The default line to use. */
190 /* The 'funfirstline' value that was passed in to decode_line_1 or
194 /* Nonzero if we are running in 'list' mode; see decode_line_list. */
197 /* The 'canonical' value passed to decode_line_full, or NULL. */
198 struct linespec_result *canonical;
200 /* Canonical strings that mirror the symtabs_and_lines result. */
201 struct linespec_canonical_name *canonical_names;
203 /* This is a set of address_entry objects which is used to prevent
204 duplicate symbols from being entered into the result. */
208 /* This is a helper object that is used when collecting symbols into a
213 /* The linespec object in use. */
214 struct linespec_state *state;
216 /* A list of symtabs to which to restrict matches. */
217 VEC (symtab_ptr) *file_symtabs;
219 /* The result being accumulated. */
222 VEC (symbolp) *symbols;
223 VEC (minsym_and_objfile_d) *minimal_symbols;
234 /* A colon "separator" */
246 /* EOI (end of input) */
252 typedef enum ls_token_type linespec_token_type;
254 /* List of keywords */
256 static const char * const linespec_keywords[] = { "if", "thread", "task" };
258 /* A token of the linespec lexer */
262 /* The type of the token */
263 linespec_token_type type;
265 /* Data for the token */
268 /* A string, given as a stoken */
269 struct stoken string;
275 typedef struct ls_token linespec_token;
277 #define LS_TOKEN_STOKEN(TOK) (TOK).data.string
278 #define LS_TOKEN_KEYWORD(TOK) (TOK).data.keyword
280 /* An instance of the linespec parser. */
284 /* Lexer internal data */
287 /* Save head of input stream. */
290 /* Head of the input stream. */
292 #define PARSER_STREAM(P) (*(P)->lexer.stream)
294 /* The current token. */
295 linespec_token current;
298 /* Is the entire linespec quote-enclosed? */
299 int is_quote_enclosed;
301 /* Is a keyword syntactically valid at this point?
302 In, e.g., "break thread thread 1", the leading "keyword" must not
303 be interpreted as such. */
306 /* The state of the parse. */
307 struct linespec_state state;
308 #define PARSER_STATE(PPTR) (&(PPTR)->state)
310 /* The result of the parse. */
311 struct linespec result;
312 #define PARSER_RESULT(PPTR) (&(PPTR)->result)
314 typedef struct ls_parser linespec_parser;
316 /* Prototypes for local functions. */
318 static void iterate_over_file_blocks (struct symtab *symtab,
319 const char *name, domain_enum domain,
320 symbol_found_callback_ftype *callback,
323 static void initialize_defaults (struct symtab **default_symtab,
326 static CORE_ADDR linespec_expression_to_pc (const char **exp_ptr);
328 static struct symtabs_and_lines decode_objc (struct linespec_state *self,
332 static VEC (symtab_ptr) *symtabs_from_filename (const char *);
334 static VEC (symbolp) *find_label_symbols (struct linespec_state *self,
335 VEC (symbolp) *function_symbols,
336 VEC (symbolp) **label_funcs_ret,
339 static void find_linespec_symbols (struct linespec_state *self,
340 VEC (symtab_ptr) *file_symtabs,
342 VEC (symbolp) **symbols,
343 VEC (minsym_and_objfile_d) **minsyms);
345 static struct line_offset
346 linespec_parse_variable (struct linespec_state *self,
347 const char *variable);
349 static int symbol_to_sal (struct symtab_and_line *result,
350 int funfirstline, struct symbol *sym);
352 static void add_matching_symbols_to_info (const char *name,
353 struct collect_info *info,
354 struct program_space *pspace);
356 static void add_all_symbol_names_from_pspace (struct collect_info *info,
357 struct program_space *pspace,
358 VEC (const_char_ptr) *names);
360 static VEC (symtab_ptr) *collect_symtabs_from_filename (const char *file);
362 static void decode_digits_ordinary (struct linespec_state *self,
365 struct symtabs_and_lines *sals,
366 struct linetable_entry **best_entry);
368 static void decode_digits_list_mode (struct linespec_state *self,
370 struct symtabs_and_lines *values,
371 struct symtab_and_line val);
373 static void minsym_found (struct linespec_state *self, struct objfile *objfile,
374 struct minimal_symbol *msymbol,
375 struct symtabs_and_lines *result);
377 static int compare_symbols (const void *a, const void *b);
379 static int compare_msymbols (const void *a, const void *b);
381 static const char *find_toplevel_char (const char *s, char c);
383 /* Permitted quote characters for the parser. This is different from the
384 completer's quote characters to allow backward compatibility with the
386 static const char *const linespec_quote_characters = "\"\'";
388 /* Lexer functions. */
390 /* Lex a number from the input in PARSER. This only supports
393 Return true if input is decimal numbers. Return false if not. */
396 linespec_lexer_lex_number (linespec_parser *parser, linespec_token *tokenp)
398 tokenp->type = LSTOKEN_NUMBER;
399 LS_TOKEN_STOKEN (*tokenp).length = 0;
400 LS_TOKEN_STOKEN (*tokenp).ptr = PARSER_STREAM (parser);
402 /* Keep any sign at the start of the stream. */
403 if (*PARSER_STREAM (parser) == '+' || *PARSER_STREAM (parser) == '-')
405 ++LS_TOKEN_STOKEN (*tokenp).length;
406 ++(PARSER_STREAM (parser));
409 while (isdigit (*PARSER_STREAM (parser)))
411 ++LS_TOKEN_STOKEN (*tokenp).length;
412 ++(PARSER_STREAM (parser));
415 /* If the next character in the input buffer is not a space, comma,
416 quote, or colon, this input does not represent a number. */
417 if (*PARSER_STREAM (parser) != '\0'
418 && !isspace (*PARSER_STREAM (parser)) && *PARSER_STREAM (parser) != ','
419 && *PARSER_STREAM (parser) != ':'
420 && !strchr (linespec_quote_characters, *PARSER_STREAM (parser)))
422 PARSER_STREAM (parser) = LS_TOKEN_STOKEN (*tokenp).ptr;
429 /* Does P represent one of the keywords? If so, return
430 the keyword. If not, return NULL. */
433 linespec_lexer_lex_keyword (const char *p)
439 for (i = 0; i < ARRAY_SIZE (linespec_keywords); ++i)
441 int len = strlen (linespec_keywords[i]);
443 /* If P begins with one of the keywords and the next
444 character is not a valid identifier character,
445 we have found a keyword. */
446 if (strncmp (p, linespec_keywords[i], len) == 0
447 && !(isalnum (p[len]) || p[len] == '_'))
448 return linespec_keywords[i];
455 /* Does STRING represent an Ada operator? If so, return the length
456 of the decoded operator name. If not, return 0. */
459 is_ada_operator (const char *string)
461 const struct ada_opname_map *mapping;
463 for (mapping = ada_opname_table;
464 mapping->encoded != NULL
465 && strncmp (mapping->decoded, string,
466 strlen (mapping->decoded)) != 0; ++mapping)
469 return mapping->decoded == NULL ? 0 : strlen (mapping->decoded);
472 /* Find QUOTE_CHAR in STRING, accounting for the ':' terminal. Return
473 the location of QUOTE_CHAR, or NULL if not found. */
476 skip_quote_char (const char *string, char quote_char)
478 const char *p, *last;
480 p = last = find_toplevel_char (string, quote_char);
481 while (p && *p != '\0' && *p != ':')
483 p = find_toplevel_char (p, quote_char);
491 /* Make a writable copy of the string given in TOKEN, trimming
492 any trailing whitespace. */
495 copy_token_string (linespec_token token)
499 if (token.type == LSTOKEN_KEYWORD)
500 return xstrdup (LS_TOKEN_KEYWORD (token));
502 str = savestring (LS_TOKEN_STOKEN (token).ptr,
503 LS_TOKEN_STOKEN (token).length);
504 s = remove_trailing_whitespace (str, str + LS_TOKEN_STOKEN (token).length);
510 /* Does P represent the end of a quote-enclosed linespec? */
513 is_closing_quote_enclosed (const char *p)
515 if (strchr (linespec_quote_characters, *p))
517 p = skip_spaces ((char *) p);
518 return (*p == '\0' || linespec_lexer_lex_keyword (p));
521 /* Find the end of the parameter list that starts with *INPUT.
522 This helper function assists with lexing string segments
523 which might contain valid (non-terminating) commas. */
526 find_parameter_list_end (char *input)
528 char end_char, start_char;
533 if (start_char == '(')
535 else if (start_char == '<')
544 if (*p == start_char)
546 else if (*p == end_char)
561 /* Lex a string from the input in PARSER. */
563 static linespec_token
564 linespec_lexer_lex_string (linespec_parser *parser)
566 linespec_token token;
567 char *start = PARSER_STREAM (parser);
569 token.type = LSTOKEN_STRING;
571 /* If the input stream starts with a quote character, skip to the next
572 quote character, regardless of the content. */
573 if (strchr (linespec_quote_characters, *PARSER_STREAM (parser)))
576 char quote_char = *PARSER_STREAM (parser);
578 /* Special case: Ada operators. */
579 if (PARSER_STATE (parser)->language->la_language == language_ada
580 && quote_char == '\"')
582 int len = is_ada_operator (PARSER_STREAM (parser));
586 /* The input is an Ada operator. Return the quoted string
588 LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser);
589 LS_TOKEN_STOKEN (token).length = len;
590 PARSER_STREAM (parser) += len;
594 /* The input does not represent an Ada operator -- fall through
595 to normal quoted string handling. */
598 /* Skip past the beginning quote. */
599 ++(PARSER_STREAM (parser));
601 /* Mark the start of the string. */
602 LS_TOKEN_STOKEN (token).ptr = PARSER_STREAM (parser);
604 /* Skip to the ending quote. */
605 end = skip_quote_char (PARSER_STREAM (parser), quote_char);
607 /* Error if the input did not terminate properly. */
609 error (_("unmatched quote"));
611 /* Skip over the ending quote and mark the length of the string. */
612 PARSER_STREAM (parser) = (char *) ++end;
613 LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - 2 - start;
619 /* Otherwise, only identifier characters are permitted.
620 Spaces are the exception. In general, we keep spaces,
621 but only if the next characters in the input do not resolve
622 to one of the keywords.
624 This allows users to forgo quoting CV-qualifiers, template arguments,
625 and similar common language constructs. */
629 if (isspace (*PARSER_STREAM (parser)))
631 p = skip_spaces (PARSER_STREAM (parser));
632 /* When we get here we know we've found something followed by
633 a space (we skip over parens and templates below).
634 So if we find a keyword now, we know it is a keyword and not,
635 say, a function name. */
636 if (linespec_lexer_lex_keyword (p) != NULL)
638 LS_TOKEN_STOKEN (token).ptr = start;
639 LS_TOKEN_STOKEN (token).length
640 = PARSER_STREAM (parser) - start;
644 /* Advance past the whitespace. */
645 PARSER_STREAM (parser) = p;
648 /* If the next character is EOI or (single) ':', the
649 string is complete; return the token. */
650 if (*PARSER_STREAM (parser) == 0)
652 LS_TOKEN_STOKEN (token).ptr = start;
653 LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start;
656 else if (PARSER_STREAM (parser)[0] == ':')
658 /* Do not tokenize the C++ scope operator. */
659 if (PARSER_STREAM (parser)[1] == ':')
660 ++(PARSER_STREAM (parser));
662 /* Do not tokenify if the input length so far is one
663 (i.e, a single-letter drive name) and the next character
664 is a directory separator. This allows Windows-style
665 paths to be recognized as filenames without quoting it. */
666 else if ((PARSER_STREAM (parser) - start) != 1
667 || !IS_DIR_SEPARATOR (PARSER_STREAM (parser)[1]))
669 LS_TOKEN_STOKEN (token).ptr = start;
670 LS_TOKEN_STOKEN (token).length
671 = PARSER_STREAM (parser) - start;
675 /* Special case: permit quote-enclosed linespecs. */
676 else if (parser->is_quote_enclosed
677 && strchr (linespec_quote_characters,
678 *PARSER_STREAM (parser))
679 && is_closing_quote_enclosed (PARSER_STREAM (parser)))
681 LS_TOKEN_STOKEN (token).ptr = start;
682 LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start;
685 /* Because commas may terminate a linespec and appear in
686 the middle of valid string input, special cases for
687 '<' and '(' are necessary. */
688 else if (*PARSER_STREAM (parser) == '<'
689 || *PARSER_STREAM (parser) == '(')
693 p = find_parameter_list_end (PARSER_STREAM (parser));
696 PARSER_STREAM (parser) = p;
700 /* Commas are terminators, but not if they are part of an
702 else if (*PARSER_STREAM (parser) == ',')
704 if ((PARSER_STATE (parser)->language->la_language
706 && (PARSER_STREAM (parser) - start) > 8
707 /* strlen ("operator") */)
709 char *p = strstr (start, "operator");
711 if (p != NULL && is_operator_name (p))
713 /* This is an operator name. Keep going. */
714 ++(PARSER_STREAM (parser));
719 /* Comma terminates the string. */
720 LS_TOKEN_STOKEN (token).ptr = start;
721 LS_TOKEN_STOKEN (token).length = PARSER_STREAM (parser) - start;
725 /* Advance the stream. */
726 ++(PARSER_STREAM (parser));
733 /* Lex a single linespec token from PARSER. */
735 static linespec_token
736 linespec_lexer_lex_one (linespec_parser *parser)
740 if (parser->lexer.current.type == LSTOKEN_CONSUMED)
742 /* Skip any whitespace. */
743 PARSER_STREAM (parser) = skip_spaces (PARSER_STREAM (parser));
745 /* Check for a keyword, they end the linespec. */
747 if (parser->keyword_ok)
748 keyword = linespec_lexer_lex_keyword (PARSER_STREAM (parser));
751 parser->lexer.current.type = LSTOKEN_KEYWORD;
752 LS_TOKEN_KEYWORD (parser->lexer.current) = keyword;
753 return parser->lexer.current;
756 /* Handle other tokens. */
757 switch (*PARSER_STREAM (parser))
760 parser->lexer.current.type = LSTOKEN_EOI;
764 case '0': case '1': case '2': case '3': case '4':
765 case '5': case '6': case '7': case '8': case '9':
766 if (!linespec_lexer_lex_number (parser, &(parser->lexer.current)))
767 parser->lexer.current = linespec_lexer_lex_string (parser);
771 /* If we have a scope operator, lex the input as a string.
772 Otherwise, return LSTOKEN_COLON. */
773 if (PARSER_STREAM (parser)[1] == ':')
774 parser->lexer.current = linespec_lexer_lex_string (parser);
777 parser->lexer.current.type = LSTOKEN_COLON;
778 ++(PARSER_STREAM (parser));
782 case '\'': case '\"':
783 /* Special case: permit quote-enclosed linespecs. */
784 if (parser->is_quote_enclosed
785 && is_closing_quote_enclosed (PARSER_STREAM (parser)))
787 ++(PARSER_STREAM (parser));
788 parser->lexer.current.type = LSTOKEN_EOI;
791 parser->lexer.current = linespec_lexer_lex_string (parser);
795 parser->lexer.current.type = LSTOKEN_COMMA;
796 LS_TOKEN_STOKEN (parser->lexer.current).ptr
797 = PARSER_STREAM (parser);
798 LS_TOKEN_STOKEN (parser->lexer.current).length = 1;
799 ++(PARSER_STREAM (parser));
803 /* If the input is not a number, it must be a string.
804 [Keywords were already considered above.] */
805 parser->lexer.current = linespec_lexer_lex_string (parser);
810 return parser->lexer.current;
813 /* Consume the current token and return the next token in PARSER's
816 static linespec_token
817 linespec_lexer_consume_token (linespec_parser *parser)
819 parser->lexer.current.type = LSTOKEN_CONSUMED;
820 return linespec_lexer_lex_one (parser);
823 /* Return the next token without consuming the current token. */
825 static linespec_token
826 linespec_lexer_peek_token (linespec_parser *parser)
829 char *saved_stream = PARSER_STREAM (parser);
830 linespec_token saved_token = parser->lexer.current;
832 next = linespec_lexer_consume_token (parser);
833 PARSER_STREAM (parser) = saved_stream;
834 parser->lexer.current = saved_token;
838 /* Helper functions. */
840 /* Add SAL to SALS. */
843 add_sal_to_sals_basic (struct symtabs_and_lines *sals,
844 struct symtab_and_line *sal)
847 sals->sals = xrealloc (sals->sals, sals->nelts * sizeof (sals->sals[0]));
848 sals->sals[sals->nelts - 1] = *sal;
851 /* Add SAL to SALS, and also update SELF->CANONICAL_NAMES to reflect
852 the new sal, if needed. If not NULL, SYMNAME is the name of the
853 symbol to use when constructing the new canonical name.
855 If LITERAL_CANONICAL is non-zero, SYMNAME will be used as the
856 canonical name for the SAL. */
859 add_sal_to_sals (struct linespec_state *self,
860 struct symtabs_and_lines *sals,
861 struct symtab_and_line *sal,
862 const char *symname, int literal_canonical)
864 add_sal_to_sals_basic (sals, sal);
868 struct linespec_canonical_name *canonical;
870 self->canonical_names = xrealloc (self->canonical_names,
872 * sizeof (*self->canonical_names)));
873 canonical = &self->canonical_names[sals->nelts - 1];
874 if (!literal_canonical && sal->symtab)
876 const char *fullname = symtab_to_fullname (sal->symtab);
878 /* Note that the filter doesn't have to be a valid linespec
879 input. We only apply the ":LINE" treatment to Ada for
881 if (symname != NULL && sal->line != 0
882 && self->language->la_language == language_ada)
883 canonical->suffix = xstrprintf ("%s:%d", symname, sal->line);
884 else if (symname != NULL)
885 canonical->suffix = xstrdup (symname);
887 canonical->suffix = xstrprintf ("%d", sal->line);
888 canonical->symtab = sal->symtab;
893 canonical->suffix = xstrdup (symname);
895 canonical->suffix = NULL;
896 canonical->symtab = NULL;
901 /* A hash function for address_entry. */
904 hash_address_entry (const void *p)
906 const struct address_entry *aep = p;
909 hash = iterative_hash_object (aep->pspace, 0);
910 return iterative_hash_object (aep->addr, hash);
913 /* An equality function for address_entry. */
916 eq_address_entry (const void *a, const void *b)
918 const struct address_entry *aea = a;
919 const struct address_entry *aeb = b;
921 return aea->pspace == aeb->pspace && aea->addr == aeb->addr;
924 /* Check whether the address, represented by PSPACE and ADDR, is
925 already in the set. If so, return 0. Otherwise, add it and return
929 maybe_add_address (htab_t set, struct program_space *pspace, CORE_ADDR addr)
931 struct address_entry e, *p;
936 slot = htab_find_slot (set, &e, INSERT);
940 p = XNEW (struct address_entry);
941 memcpy (p, &e, sizeof (struct address_entry));
947 /* A callback function and the additional data to call it with. */
949 struct symbol_and_data_callback
951 /* The callback to use. */
952 symbol_found_callback_ftype *callback;
954 /* Data to be passed to the callback. */
958 /* A helper for iterate_over_all_matching_symtabs that is used to
959 restrict calls to another callback to symbols representing inline
963 iterate_inline_only (struct symbol *sym, void *d)
965 if (SYMBOL_INLINED (sym))
967 struct symbol_and_data_callback *cad = d;
969 return cad->callback (sym, cad->data);
971 return 1; /* Continue iterating. */
974 /* Some data for the expand_symtabs_matching callback. */
976 struct symbol_matcher_data
978 /* The lookup name against which symbol name should be compared. */
979 const char *lookup_name;
981 /* The routine to be used for comparison. */
982 symbol_name_cmp_ftype symbol_name_cmp;
985 /* A helper for iterate_over_all_matching_symtabs that is passed as a
986 callback to the expand_symtabs_matching method. */
989 iterate_name_matcher (const char *name, void *d)
991 const struct symbol_matcher_data *data = d;
993 if (data->symbol_name_cmp (name, data->lookup_name) == 0)
994 return 1; /* Expand this symbol's symbol table. */
995 return 0; /* Skip this symbol. */
998 /* A helper that walks over all matching symtabs in all objfiles and
999 calls CALLBACK for each symbol matching NAME. If SEARCH_PSPACE is
1000 not NULL, then the search is restricted to just that program
1001 space. If INCLUDE_INLINE is nonzero then symbols representing
1002 inlined instances of functions will be included in the result. */
1005 iterate_over_all_matching_symtabs (struct linespec_state *state,
1007 const domain_enum domain,
1008 symbol_found_callback_ftype *callback,
1010 struct program_space *search_pspace,
1013 struct objfile *objfile;
1014 struct program_space *pspace;
1015 struct symbol_matcher_data matcher_data;
1017 matcher_data.lookup_name = name;
1018 matcher_data.symbol_name_cmp =
1019 state->language->la_get_symbol_name_cmp != NULL
1020 ? state->language->la_get_symbol_name_cmp (name)
1023 ALL_PSPACES (pspace)
1025 if (search_pspace != NULL && search_pspace != pspace)
1027 if (pspace->executing_startup)
1030 set_current_program_space (pspace);
1032 ALL_OBJFILES (objfile)
1034 struct symtab *symtab;
1037 objfile->sf->qf->expand_symtabs_matching (objfile, NULL,
1038 iterate_name_matcher,
1042 ALL_OBJFILE_PRIMARY_SYMTABS (objfile, symtab)
1044 iterate_over_file_blocks (symtab, name, domain, callback, data);
1048 struct symbol_and_data_callback cad = { callback, data };
1049 struct block *block;
1052 for (i = FIRST_LOCAL_BLOCK;
1053 i < BLOCKVECTOR_NBLOCKS (BLOCKVECTOR (symtab)); i++)
1055 block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), i);
1056 state->language->la_iterate_over_symbols
1057 (block, name, domain, iterate_inline_only, &cad);
1065 /* Returns the block to be used for symbol searches from
1066 the current location. */
1068 static struct block *
1069 get_current_search_block (void)
1071 struct block *block;
1072 enum language save_language;
1074 /* get_selected_block can change the current language when there is
1075 no selected frame yet. */
1076 save_language = current_language->la_language;
1077 block = get_selected_block (0);
1078 set_language (save_language);
1083 /* Iterate over static and global blocks. */
1086 iterate_over_file_blocks (struct symtab *symtab,
1087 const char *name, domain_enum domain,
1088 symbol_found_callback_ftype *callback, void *data)
1090 struct block *block;
1092 for (block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK);
1094 block = BLOCK_SUPERBLOCK (block))
1095 LA_ITERATE_OVER_SYMBOLS (block, name, domain, callback, data);
1098 /* A helper for find_method. This finds all methods in type T which
1099 match NAME. It adds matching symbol names to RESULT_NAMES, and
1100 adds T's direct superclasses to SUPERCLASSES. */
1103 find_methods (struct type *t, const char *name,
1104 VEC (const_char_ptr) **result_names,
1105 VEC (typep) **superclasses)
1108 const char *class_name = type_name_no_tag (t);
1110 /* Ignore this class if it doesn't have a name. This is ugly, but
1111 unless we figure out how to get the physname without the name of
1112 the class, then the loop can't do any good. */
1119 /* Loop over each method name. At this level, all overloads of a name
1120 are counted as a single name. There is an inner loop which loops over
1123 for (method_counter = TYPE_NFN_FIELDS (t) - 1;
1124 method_counter >= 0;
1127 const char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter);
1128 char dem_opname[64];
1130 if (strncmp (method_name, "__", 2) == 0 ||
1131 strncmp (method_name, "op", 2) == 0 ||
1132 strncmp (method_name, "type", 4) == 0)
1134 if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI))
1135 method_name = dem_opname;
1136 else if (cplus_demangle_opname (method_name, dem_opname, 0))
1137 method_name = dem_opname;
1140 if (strcmp_iw (method_name, name) == 0)
1144 for (field_counter = (TYPE_FN_FIELDLIST_LENGTH (t, method_counter)
1150 const char *phys_name;
1152 f = TYPE_FN_FIELDLIST1 (t, method_counter);
1153 if (TYPE_FN_FIELD_STUB (f, field_counter))
1155 phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
1156 VEC_safe_push (const_char_ptr, *result_names, phys_name);
1162 for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++)
1163 VEC_safe_push (typep, *superclasses, TYPE_BASECLASS (t, ibase));
1166 /* Find an instance of the character C in the string S that is outside
1167 of all parenthesis pairs, single-quoted strings, and double-quoted
1168 strings. Also, ignore the char within a template name, like a ','
1169 within foo<int, int>. */
1172 find_toplevel_char (const char *s, char c)
1174 int quoted = 0; /* zero if we're not in quotes;
1175 '"' if we're in a double-quoted string;
1176 '\'' if we're in a single-quoted string. */
1177 int depth = 0; /* Number of unclosed parens we've seen. */
1180 for (scan = s; *scan; scan++)
1184 if (*scan == quoted)
1186 else if (*scan == '\\' && *(scan + 1))
1189 else if (*scan == c && ! quoted && depth == 0)
1191 else if (*scan == '"' || *scan == '\'')
1193 else if (*scan == '(' || *scan == '<')
1195 else if ((*scan == ')' || *scan == '>') && depth > 0)
1202 /* The string equivalent of find_toplevel_char. Returns a pointer
1203 to the location of NEEDLE in HAYSTACK, ignoring any occurrences
1204 inside "()" and "<>". Returns NULL if NEEDLE was not found. */
1207 find_toplevel_string (const char *haystack, const char *needle)
1209 const char *s = haystack;
1213 s = find_toplevel_char (s, *needle);
1217 /* Found first char in HAYSTACK; check rest of string. */
1218 if (strncmp (s, needle, strlen (needle)) == 0)
1221 /* Didn't find it; loop over HAYSTACK, looking for the next
1222 instance of the first character of NEEDLE. */
1226 while (s != NULL && *s != '\0');
1228 /* NEEDLE was not found in HAYSTACK. */
1232 /* Convert CANONICAL to its string representation using
1233 symtab_to_fullname for SYMTAB. The caller must xfree the result. */
1236 canonical_to_fullform (const struct linespec_canonical_name *canonical)
1238 if (canonical->symtab == NULL)
1239 return xstrdup (canonical->suffix);
1241 return xstrprintf ("%s:%s", symtab_to_fullname (canonical->symtab),
1245 /* Given FILTERS, a list of canonical names, filter the sals in RESULT
1246 and store the result in SELF->CANONICAL. */
1249 filter_results (struct linespec_state *self,
1250 struct symtabs_and_lines *result,
1251 VEC (const_char_ptr) *filters)
1256 for (i = 0; VEC_iterate (const_char_ptr, filters, i, name); ++i)
1258 struct linespec_sals lsal;
1261 memset (&lsal, 0, sizeof (lsal));
1263 for (j = 0; j < result->nelts; ++j)
1265 const struct linespec_canonical_name *canonical;
1267 struct cleanup *cleanup;
1269 canonical = &self->canonical_names[j];
1270 fullform = canonical_to_fullform (canonical);
1271 cleanup = make_cleanup (xfree, fullform);
1273 if (strcmp (name, fullform) == 0)
1274 add_sal_to_sals_basic (&lsal.sals, &result->sals[j]);
1276 do_cleanups (cleanup);
1279 if (lsal.sals.nelts > 0)
1281 lsal.canonical = xstrdup (name);
1282 VEC_safe_push (linespec_sals, self->canonical->sals, &lsal);
1286 self->canonical->pre_expanded = 0;
1289 /* Store RESULT into SELF->CANONICAL. */
1292 convert_results_to_lsals (struct linespec_state *self,
1293 struct symtabs_and_lines *result)
1295 struct linespec_sals lsal;
1297 lsal.canonical = NULL;
1298 lsal.sals = *result;
1299 VEC_safe_push (linespec_sals, self->canonical->sals, &lsal);
1302 /* A structure that contains two string representations of a struct
1303 linespec_canonical_name:
1304 - one where the the symtab's fullname is used;
1305 - one where the filename followed the "set filename-display"
1308 struct decode_line_2_item
1310 /* The form using symtab_to_fullname.
1311 It must be xfree'ed after use. */
1314 /* The form using symtab_to_filename_for_display.
1315 It must be xfree'ed after use. */
1318 /* Field is initialized to zero and it is set to one if the user
1319 requested breakpoint for this entry. */
1320 unsigned int selected : 1;
1323 /* Helper for qsort to sort decode_line_2_item entries by DISPLAYFORM and
1324 secondarily by FULLFORM. */
1327 decode_line_2_compare_items (const void *ap, const void *bp)
1329 const struct decode_line_2_item *a = ap;
1330 const struct decode_line_2_item *b = bp;
1333 retval = strcmp (a->displayform, b->displayform);
1337 return strcmp (a->fullform, b->fullform);
1340 /* Handle multiple results in RESULT depending on SELECT_MODE. This
1341 will either return normally, throw an exception on multiple
1342 results, or present a menu to the user. On return, the SALS vector
1343 in SELF->CANONICAL is set up properly. */
1346 decode_line_2 (struct linespec_state *self,
1347 struct symtabs_and_lines *result,
1348 const char *select_mode)
1350 char *args, *prompt;
1352 struct cleanup *old_chain;
1353 VEC (const_char_ptr) *filters = NULL;
1354 struct get_number_or_range_state state;
1355 struct decode_line_2_item *items;
1358 gdb_assert (select_mode != multiple_symbols_all);
1359 gdb_assert (self->canonical != NULL);
1360 gdb_assert (result->nelts >= 1);
1362 old_chain = make_cleanup (VEC_cleanup (const_char_ptr), &filters);
1364 /* Prepare ITEMS array. */
1365 items_count = result->nelts;
1366 items = xmalloc (sizeof (*items) * items_count);
1367 make_cleanup (xfree, items);
1368 for (i = 0; i < items_count; ++i)
1370 const struct linespec_canonical_name *canonical;
1371 struct decode_line_2_item *item;
1373 canonical = &self->canonical_names[i];
1374 gdb_assert (canonical->suffix != NULL);
1377 item->fullform = canonical_to_fullform (canonical);
1378 make_cleanup (xfree, item->fullform);
1380 if (canonical->symtab == NULL)
1381 item->displayform = canonical->suffix;
1384 const char *fn_for_display;
1386 fn_for_display = symtab_to_filename_for_display (canonical->symtab);
1387 item->displayform = xstrprintf ("%s:%s", fn_for_display,
1389 make_cleanup (xfree, item->displayform);
1395 /* Sort the list of method names. */
1396 qsort (items, items_count, sizeof (*items), decode_line_2_compare_items);
1398 /* Remove entries with the same FULLFORM. */
1399 if (items_count >= 2)
1401 struct decode_line_2_item *dst, *src;
1404 for (src = &items[1]; src < &items[items_count]; src++)
1405 if (strcmp (src->fullform, dst->fullform) != 0)
1407 items_count = dst + 1 - items;
1410 if (select_mode == multiple_symbols_cancel && items_count > 1)
1411 error (_("canceled because the command is ambiguous\n"
1412 "See set/show multiple-symbol."));
1414 if (select_mode == multiple_symbols_all || items_count == 1)
1416 do_cleanups (old_chain);
1417 convert_results_to_lsals (self, result);
1421 printf_unfiltered (_("[0] cancel\n[1] all\n"));
1422 for (i = 0; i < items_count; i++)
1423 printf_unfiltered ("[%d] %s\n", i + 2, items[i].displayform);
1425 prompt = getenv ("PS2");
1430 args = command_line_input (prompt, 0, "overload-choice");
1432 if (args == 0 || *args == 0)
1433 error_no_arg (_("one or more choice numbers"));
1435 init_number_or_range (&state, args);
1436 while (!state.finished)
1440 num = get_number_or_range (&state);
1443 error (_("canceled"));
1446 /* We intentionally make this result in a single breakpoint,
1447 contrary to what older versions of gdb did. The
1448 rationale is that this lets a user get the
1449 multiple_symbols_all behavior even with the 'ask'
1450 setting; and he can get separate breakpoints by entering
1451 "2-57" at the query. */
1452 do_cleanups (old_chain);
1453 convert_results_to_lsals (self, result);
1458 if (num >= items_count)
1459 printf_unfiltered (_("No choice number %d.\n"), num);
1462 struct decode_line_2_item *item = &items[num];
1464 if (!item->selected)
1466 VEC_safe_push (const_char_ptr, filters, item->fullform);
1471 printf_unfiltered (_("duplicate request for %d ignored.\n"),
1477 filter_results (self, result, filters);
1478 do_cleanups (old_chain);
1483 /* The parser of linespec itself. */
1485 /* Throw an appropriate error when SYMBOL is not found (optionally in
1488 static void ATTRIBUTE_NORETURN
1489 symbol_not_found_error (const char *symbol, const char *filename)
1494 if (!have_full_symbols ()
1495 && !have_partial_symbols ()
1496 && !have_minimal_symbols ())
1497 throw_error (NOT_FOUND_ERROR,
1498 _("No symbol table is loaded. Use the \"file\" command."));
1500 /* If SYMBOL starts with '$', the user attempted to either lookup
1501 a function/variable in his code starting with '$' or an internal
1502 variable of that name. Since we do not know which, be concise and
1503 explain both possibilities. */
1507 throw_error (NOT_FOUND_ERROR,
1508 _("Undefined convenience variable or function \"%s\" "
1509 "not defined in \"%s\"."), symbol, filename);
1511 throw_error (NOT_FOUND_ERROR,
1512 _("Undefined convenience variable or function \"%s\" "
1513 "not defined."), symbol);
1518 throw_error (NOT_FOUND_ERROR,
1519 _("Function \"%s\" not defined in \"%s\"."),
1522 throw_error (NOT_FOUND_ERROR,
1523 _("Function \"%s\" not defined."), symbol);
1527 /* Throw an appropriate error when an unexpected token is encountered
1530 static void ATTRIBUTE_NORETURN
1531 unexpected_linespec_error (linespec_parser *parser)
1533 linespec_token token;
1534 static const char * token_type_strings[]
1535 = {"keyword", "colon", "string", "number", "comma", "end of input"};
1537 /* Get the token that generated the error. */
1538 token = linespec_lexer_lex_one (parser);
1540 /* Finally, throw the error. */
1541 if (token.type == LSTOKEN_STRING || token.type == LSTOKEN_NUMBER
1542 || token.type == LSTOKEN_KEYWORD)
1545 struct cleanup *cleanup;
1547 string = copy_token_string (token);
1548 cleanup = make_cleanup (xfree, string);
1549 throw_error (GENERIC_ERROR,
1550 _("malformed linespec error: unexpected %s, \"%s\""),
1551 token_type_strings[token.type], string);
1554 throw_error (GENERIC_ERROR,
1555 _("malformed linespec error: unexpected %s"),
1556 token_type_strings[token.type]);
1559 /* Parse and return a line offset in STRING. */
1561 static struct line_offset
1562 linespec_parse_line_offset (const char *string)
1564 struct line_offset line_offset = {0, LINE_OFFSET_NONE};
1568 line_offset.sign = LINE_OFFSET_PLUS;
1571 else if (*string == '-')
1573 line_offset.sign = LINE_OFFSET_MINUS;
1577 /* Right now, we only allow base 10 for offsets. */
1578 line_offset.offset = atoi (string);
1582 /* Parse the basic_spec in PARSER's input. */
1585 linespec_parse_basic (linespec_parser *parser)
1588 linespec_token token;
1589 VEC (symbolp) *symbols, *labels;
1590 VEC (minsym_and_objfile_d) *minimal_symbols;
1591 struct cleanup *cleanup;
1593 /* Get the next token. */
1594 token = linespec_lexer_lex_one (parser);
1596 /* If it is EOI or KEYWORD, issue an error. */
1597 if (token.type == LSTOKEN_KEYWORD || token.type == LSTOKEN_EOI)
1598 unexpected_linespec_error (parser);
1599 /* If it is a LSTOKEN_NUMBER, we have an offset. */
1600 else if (token.type == LSTOKEN_NUMBER)
1602 /* Record the line offset and get the next token. */
1603 name = copy_token_string (token);
1604 cleanup = make_cleanup (xfree, name);
1605 PARSER_RESULT (parser)->line_offset = linespec_parse_line_offset (name);
1606 do_cleanups (cleanup);
1608 /* Get the next token. */
1609 token = linespec_lexer_consume_token (parser);
1611 /* If the next token is a comma, stop parsing and return. */
1612 if (token.type == LSTOKEN_COMMA)
1615 /* If the next token is anything but EOI or KEYWORD, issue
1617 if (token.type != LSTOKEN_KEYWORD && token.type != LSTOKEN_EOI)
1618 unexpected_linespec_error (parser);
1621 if (token.type == LSTOKEN_KEYWORD || token.type == LSTOKEN_EOI)
1624 /* Next token must be LSTOKEN_STRING. */
1625 if (token.type != LSTOKEN_STRING)
1626 unexpected_linespec_error (parser);
1628 /* The current token will contain the name of a function, method,
1630 name = copy_token_string (token);
1631 cleanup = make_cleanup (xfree, name);
1633 /* Try looking it up as a function/method. */
1634 find_linespec_symbols (PARSER_STATE (parser),
1635 PARSER_RESULT (parser)->file_symtabs, name,
1636 &symbols, &minimal_symbols);
1638 if (symbols != NULL || minimal_symbols != NULL)
1640 PARSER_RESULT (parser)->function_symbols = symbols;
1641 PARSER_RESULT (parser)->minimal_symbols = minimal_symbols;
1642 PARSER_RESULT (parser)->function_name = name;
1644 discard_cleanups (cleanup);
1648 /* NAME was not a function or a method. So it must be a label
1649 name or user specified variable like "break foo.c:$zippo". */
1650 labels = find_label_symbols (PARSER_STATE (parser), NULL,
1654 PARSER_RESULT (parser)->labels.label_symbols = labels;
1655 PARSER_RESULT (parser)->labels.function_symbols = symbols;
1656 PARSER_RESULT (parser)->label_name = name;
1658 discard_cleanups (cleanup);
1660 else if (token.type == LSTOKEN_STRING
1661 && *LS_TOKEN_STOKEN (token).ptr == '$')
1663 /* User specified a convenience variable or history value. */
1664 PARSER_RESULT (parser)->line_offset
1665 = linespec_parse_variable (PARSER_STATE (parser), name);
1667 if (PARSER_RESULT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN)
1669 /* The user-specified variable was not valid. Do not
1670 throw an error here. parse_linespec will do it for us. */
1671 PARSER_RESULT (parser)->function_name = name;
1672 discard_cleanups (cleanup);
1678 /* The name is also not a label. Abort parsing. Do not throw
1679 an error here. parse_linespec will do it for us. */
1681 /* Save a copy of the name we were trying to lookup. */
1682 PARSER_RESULT (parser)->function_name = name;
1683 discard_cleanups (cleanup);
1688 /* Get the next token. */
1689 token = linespec_lexer_consume_token (parser);
1691 if (token.type == LSTOKEN_COLON)
1693 /* User specified a label or a lineno. */
1694 token = linespec_lexer_consume_token (parser);
1696 if (token.type == LSTOKEN_NUMBER)
1698 /* User specified an offset. Record the line offset and
1699 get the next token. */
1700 name = copy_token_string (token);
1701 cleanup = make_cleanup (xfree, name);
1702 PARSER_RESULT (parser)->line_offset
1703 = linespec_parse_line_offset (name);
1704 do_cleanups (cleanup);
1706 /* Ge the next token. */
1707 token = linespec_lexer_consume_token (parser);
1709 else if (token.type == LSTOKEN_STRING)
1711 /* Grab a copy of the label's name and look it up. */
1712 name = copy_token_string (token);
1713 cleanup = make_cleanup (xfree, name);
1714 labels = find_label_symbols (PARSER_STATE (parser),
1715 PARSER_RESULT (parser)->function_symbols,
1720 PARSER_RESULT (parser)->labels.label_symbols = labels;
1721 PARSER_RESULT (parser)->labels.function_symbols = symbols;
1722 PARSER_RESULT (parser)->label_name = name;
1724 discard_cleanups (cleanup);
1728 /* We don't know what it was, but it isn't a label. */
1729 throw_error (NOT_FOUND_ERROR,
1730 _("No label \"%s\" defined in function \"%s\"."),
1731 name, PARSER_RESULT (parser)->function_name);
1734 /* Check for a line offset. */
1735 token = linespec_lexer_consume_token (parser);
1736 if (token.type == LSTOKEN_COLON)
1738 /* Get the next token. */
1739 token = linespec_lexer_consume_token (parser);
1741 /* It must be a line offset. */
1742 if (token.type != LSTOKEN_NUMBER)
1743 unexpected_linespec_error (parser);
1745 /* Record the lione offset and get the next token. */
1746 name = copy_token_string (token);
1747 cleanup = make_cleanup (xfree, name);
1749 PARSER_RESULT (parser)->line_offset
1750 = linespec_parse_line_offset (name);
1751 do_cleanups (cleanup);
1753 /* Get the next token. */
1754 token = linespec_lexer_consume_token (parser);
1759 /* Trailing ':' in the input. Issue an error. */
1760 unexpected_linespec_error (parser);
1765 /* Canonicalize the linespec contained in LS. The result is saved into
1766 STATE->canonical. */
1769 canonicalize_linespec (struct linespec_state *state, linespec_p ls)
1771 /* If canonicalization was not requested, no need to do anything. */
1772 if (!state->canonical)
1775 /* Shortcut expressions, which can only appear by themselves. */
1776 if (ls->expression != NULL)
1777 state->canonical->addr_string = xstrdup (ls->expression);
1780 struct ui_file *buf;
1783 buf = mem_fileopen ();
1784 if (ls->source_filename)
1786 fputs_unfiltered (ls->source_filename, buf);
1790 if (ls->function_name)
1793 fputc_unfiltered (':', buf);
1794 fputs_unfiltered (ls->function_name, buf);
1801 fputc_unfiltered (':', buf);
1803 if (ls->function_name == NULL)
1807 /* No function was specified, so add the symbol name. */
1808 gdb_assert (ls->labels.function_symbols != NULL
1809 && (VEC_length (symbolp, ls->labels.function_symbols)
1811 s = VEC_index (symbolp, ls->labels.function_symbols, 0);
1812 fputs_unfiltered (SYMBOL_NATURAL_NAME (s), buf);
1813 fputc_unfiltered (':', buf);
1816 fputs_unfiltered (ls->label_name, buf);
1818 state->canonical->special_display = 1;
1821 if (ls->line_offset.sign != LINE_OFFSET_UNKNOWN)
1824 fputc_unfiltered (':', buf);
1825 fprintf_filtered (buf, "%s%d",
1826 (ls->line_offset.sign == LINE_OFFSET_NONE ? ""
1827 : (ls->line_offset.sign
1828 == LINE_OFFSET_PLUS ? "+" : "-")),
1829 ls->line_offset.offset);
1832 state->canonical->addr_string = ui_file_xstrdup (buf, NULL);
1833 ui_file_delete (buf);
1837 /* Given a line offset in LS, construct the relevant SALs. */
1839 static struct symtabs_and_lines
1840 create_sals_line_offset (struct linespec_state *self,
1843 struct symtabs_and_lines values;
1844 struct symtab_and_line val;
1845 int use_default = 0;
1851 /* This is where we need to make sure we have good defaults.
1852 We must guarantee that this section of code is never executed
1853 when we are called with just a function name, since
1854 set_default_source_symtab_and_line uses
1855 select_source_symtab that calls us with such an argument. */
1857 if (VEC_length (symtab_ptr, ls->file_symtabs) == 1
1858 && VEC_index (symtab_ptr, ls->file_symtabs, 0) == NULL)
1860 const char *fullname;
1862 set_current_program_space (self->program_space);
1864 /* Make sure we have at least a default source line. */
1865 set_default_source_symtab_and_line ();
1866 initialize_defaults (&self->default_symtab, &self->default_line);
1867 fullname = symtab_to_fullname (self->default_symtab);
1868 VEC_pop (symtab_ptr, ls->file_symtabs);
1869 VEC_free (symtab_ptr, ls->file_symtabs);
1870 ls->file_symtabs = collect_symtabs_from_filename (fullname);
1874 val.line = ls->line_offset.offset;
1875 switch (ls->line_offset.sign)
1877 case LINE_OFFSET_PLUS:
1878 if (ls->line_offset.offset == 0)
1881 val.line = self->default_line + val.line;
1884 case LINE_OFFSET_MINUS:
1885 if (ls->line_offset.offset == 0)
1888 val.line = self->default_line - val.line;
1890 val.line = -val.line;
1893 case LINE_OFFSET_NONE:
1894 break; /* No need to adjust val.line. */
1897 if (self->list_mode)
1898 decode_digits_list_mode (self, ls, &values, val);
1901 struct linetable_entry *best_entry = NULL;
1903 struct block **blocks;
1904 struct cleanup *cleanup;
1905 struct symtabs_and_lines intermediate_results;
1908 intermediate_results.sals = NULL;
1909 intermediate_results.nelts = 0;
1911 decode_digits_ordinary (self, ls, val.line, &intermediate_results,
1913 if (intermediate_results.nelts == 0 && best_entry != NULL)
1914 decode_digits_ordinary (self, ls, best_entry->line,
1915 &intermediate_results, &best_entry);
1917 cleanup = make_cleanup (xfree, intermediate_results.sals);
1919 /* For optimized code, the compiler can scatter one source line
1920 across disjoint ranges of PC values, even when no duplicate
1921 functions or inline functions are involved. For example,
1922 'for (;;)' inside a non-template, non-inline, and non-ctor-or-dtor
1923 function can result in two PC ranges. In this case, we don't
1924 want to set a breakpoint on the first PC of each range. To filter
1925 such cases, we use containing blocks -- for each PC found
1926 above, we see if there are other PCs that are in the same
1927 block. If yes, the other PCs are filtered out. */
1929 filter = XNEWVEC (int, intermediate_results.nelts);
1930 make_cleanup (xfree, filter);
1931 blocks = XNEWVEC (struct block *, intermediate_results.nelts);
1932 make_cleanup (xfree, blocks);
1934 for (i = 0; i < intermediate_results.nelts; ++i)
1936 set_current_program_space (intermediate_results.sals[i].pspace);
1939 blocks[i] = block_for_pc_sect (intermediate_results.sals[i].pc,
1940 intermediate_results.sals[i].section);
1943 for (i = 0; i < intermediate_results.nelts; ++i)
1945 if (blocks[i] != NULL)
1946 for (j = i + 1; j < intermediate_results.nelts; ++j)
1948 if (blocks[j] == blocks[i])
1956 for (i = 0; i < intermediate_results.nelts; ++i)
1959 struct symbol *sym = (blocks[i]
1960 ? block_containing_function (blocks[i])
1963 if (self->funfirstline)
1964 skip_prologue_sal (&intermediate_results.sals[i]);
1965 /* Make sure the line matches the request, not what was
1967 intermediate_results.sals[i].line = val.line;
1968 add_sal_to_sals (self, &values, &intermediate_results.sals[i],
1969 sym ? SYMBOL_NATURAL_NAME (sym) : NULL, 0);
1972 do_cleanups (cleanup);
1975 if (values.nelts == 0)
1977 if (ls->source_filename)
1978 throw_error (NOT_FOUND_ERROR, _("No line %d in file \"%s\"."),
1979 val.line, ls->source_filename);
1981 throw_error (NOT_FOUND_ERROR, _("No line %d in the current file."),
1988 /* Create and return SALs from the linespec LS. */
1990 static struct symtabs_and_lines
1991 convert_linespec_to_sals (struct linespec_state *state, linespec_p ls)
1993 struct symtabs_and_lines sals = {NULL, 0};
1995 if (ls->expression != NULL)
1997 struct symtab_and_line sal;
1999 /* We have an expression. No other attribute is allowed. */
2000 sal = find_pc_line (ls->expr_pc, 0);
2001 sal.pc = ls->expr_pc;
2002 sal.section = find_pc_overlay (ls->expr_pc);
2003 sal.explicit_pc = 1;
2004 add_sal_to_sals (state, &sals, &sal, ls->expression, 1);
2006 else if (ls->labels.label_symbols != NULL)
2008 /* We have just a bunch of functions/methods or labels. */
2010 struct symtab_and_line sal;
2013 for (i = 0; VEC_iterate (symbolp, ls->labels.label_symbols, i, sym); ++i)
2015 struct program_space *pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym));
2017 if (symbol_to_sal (&sal, state->funfirstline, sym)
2018 && maybe_add_address (state->addr_set, pspace, sal.pc))
2019 add_sal_to_sals (state, &sals, &sal,
2020 SYMBOL_NATURAL_NAME (sym), 0);
2023 else if (ls->function_symbols != NULL || ls->minimal_symbols != NULL)
2025 /* We have just a bunch of functions and/or methods. */
2027 struct symtab_and_line sal;
2029 minsym_and_objfile_d *elem;
2030 struct program_space *pspace;
2032 if (ls->function_symbols != NULL)
2034 /* Sort symbols so that symbols with the same program space are next
2036 qsort (VEC_address (symbolp, ls->function_symbols),
2037 VEC_length (symbolp, ls->function_symbols),
2038 sizeof (symbolp), compare_symbols);
2040 for (i = 0; VEC_iterate (symbolp, ls->function_symbols, i, sym); ++i)
2042 pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym));
2043 set_current_program_space (pspace);
2044 if (symbol_to_sal (&sal, state->funfirstline, sym)
2045 && maybe_add_address (state->addr_set, pspace, sal.pc))
2046 add_sal_to_sals (state, &sals, &sal,
2047 SYMBOL_NATURAL_NAME (sym), 0);
2051 if (ls->minimal_symbols != NULL)
2053 /* Sort minimal symbols by program space, too. */
2054 qsort (VEC_address (minsym_and_objfile_d, ls->minimal_symbols),
2055 VEC_length (minsym_and_objfile_d, ls->minimal_symbols),
2056 sizeof (minsym_and_objfile_d), compare_msymbols);
2059 VEC_iterate (minsym_and_objfile_d, ls->minimal_symbols, i, elem);
2062 pspace = elem->objfile->pspace;
2063 set_current_program_space (pspace);
2064 minsym_found (state, elem->objfile, elem->minsym, &sals);
2068 else if (ls->line_offset.sign != LINE_OFFSET_UNKNOWN)
2070 /* Only an offset was specified. */
2071 sals = create_sals_line_offset (state, ls);
2073 /* Make sure we have a filename for canonicalization. */
2074 if (ls->source_filename == NULL)
2076 const char *fullname = symtab_to_fullname (state->default_symtab);
2078 /* It may be more appropriate to keep DEFAULT_SYMTAB in its symtab
2079 form so that displaying SOURCE_FILENAME can follow the current
2080 FILENAME_DISPLAY_STRING setting. But as it is used only rarely
2081 it has been kept for code simplicity only in absolute form. */
2082 ls->source_filename = xstrdup (fullname);
2087 /* We haven't found any results... */
2091 canonicalize_linespec (state, ls);
2093 if (sals.nelts > 0 && state->canonical != NULL)
2094 state->canonical->pre_expanded = 1;
2099 /* Parse a string that specifies a linespec.
2100 Pass the address of a char * variable; that variable will be
2101 advanced over the characters actually parsed.
2103 The basic grammar of linespecs:
2105 linespec -> expr_spec | var_spec | basic_spec
2106 expr_spec -> '*' STRING
2107 var_spec -> '$' (STRING | NUMBER)
2109 basic_spec -> file_offset_spec | function_spec | label_spec
2110 file_offset_spec -> opt_file_spec offset_spec
2111 function_spec -> opt_file_spec function_name_spec opt_label_spec
2112 label_spec -> label_name_spec
2114 opt_file_spec -> "" | file_name_spec ':'
2115 opt_label_spec -> "" | ':' label_name_spec
2117 file_name_spec -> STRING
2118 function_name_spec -> STRING
2119 label_name_spec -> STRING
2120 function_name_spec -> STRING
2121 offset_spec -> NUMBER
2125 This may all be followed by several keywords such as "if EXPR",
2128 A comma will terminate parsing.
2130 The function may be an undebuggable function found in minimal symbol table.
2132 If the argument FUNFIRSTLINE is nonzero, we want the first line
2133 of real code inside a function when a function is specified, and it is
2134 not OK to specify a variable or type to get its line number.
2136 DEFAULT_SYMTAB specifies the file to use if none is specified.
2137 It defaults to current_source_symtab.
2138 DEFAULT_LINE specifies the line number to use for relative
2139 line numbers (that start with signs). Defaults to current_source_line.
2140 If CANONICAL is non-NULL, store an array of strings containing the canonical
2141 line specs there if necessary. Currently overloaded member functions and
2142 line numbers or static functions without a filename yield a canonical
2143 line spec. The array and the line spec strings are allocated on the heap,
2144 it is the callers responsibility to free them.
2146 Note that it is possible to return zero for the symtab
2147 if no file is validly specified. Callers must check that.
2148 Also, the line number returned may be invalid. */
2150 /* Parse the linespec in ARGPTR. */
2152 static struct symtabs_and_lines
2153 parse_linespec (linespec_parser *parser, char **argptr)
2155 linespec_token token;
2156 struct symtabs_and_lines values;
2157 volatile struct gdb_exception file_exception;
2158 struct cleanup *cleanup;
2160 /* A special case to start. It has become quite popular for
2161 IDEs to work around bugs in the previous parser by quoting
2162 the entire linespec, so we attempt to deal with this nicely. */
2163 parser->is_quote_enclosed = 0;
2164 if (!is_ada_operator (*argptr)
2165 && strchr (linespec_quote_characters, **argptr) != NULL)
2169 end = skip_quote_char (*argptr + 1, **argptr);
2170 if (end != NULL && is_closing_quote_enclosed (end))
2172 /* Here's the special case. Skip ARGPTR past the initial
2175 parser->is_quote_enclosed = 1;
2179 /* A keyword at the start cannot be interpreted as such.
2180 Consider "b thread thread 42". */
2181 parser->keyword_ok = 0;
2183 parser->lexer.saved_arg = *argptr;
2184 parser->lexer.stream = argptr;
2185 file_exception.reason = 0;
2187 /* Initialize the default symtab and line offset. */
2188 initialize_defaults (&PARSER_STATE (parser)->default_symtab,
2189 &PARSER_STATE (parser)->default_line);
2191 /* Objective-C shortcut. */
2192 values = decode_objc (PARSER_STATE (parser), PARSER_RESULT (parser), argptr);
2193 if (values.sals != NULL)
2196 /* Start parsing. */
2198 /* Get the first token. */
2199 token = linespec_lexer_lex_one (parser);
2201 /* It must be either LSTOKEN_STRING or LSTOKEN_NUMBER. */
2202 if (token.type == LSTOKEN_STRING && *LS_TOKEN_STOKEN (token).ptr == '*')
2207 /* User specified an expression, *EXPR. */
2208 copy = expr = copy_token_string (token);
2209 cleanup = make_cleanup (xfree, expr);
2210 PARSER_RESULT (parser)->expr_pc = linespec_expression_to_pc (©);
2211 discard_cleanups (cleanup);
2212 PARSER_RESULT (parser)->expression = expr;
2214 /* This is a little hacky/tricky. If linespec_expression_to_pc
2215 did not evaluate the entire token, then we must find the
2216 string COPY inside the original token buffer. */
2219 PARSER_STREAM (parser) = strstr (parser->lexer.saved_arg, copy);
2220 gdb_assert (PARSER_STREAM (parser) != NULL);
2223 /* Consume the token. */
2224 linespec_lexer_consume_token (parser);
2226 goto convert_to_sals;
2228 else if (token.type == LSTOKEN_STRING && *LS_TOKEN_STOKEN (token).ptr == '$')
2232 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2233 VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL);
2235 /* User specified a convenience variable or history value. */
2236 var = copy_token_string (token);
2237 cleanup = make_cleanup (xfree, var);
2238 PARSER_RESULT (parser)->line_offset
2239 = linespec_parse_variable (PARSER_STATE (parser), var);
2240 do_cleanups (cleanup);
2242 /* If a line_offset wasn't found (VAR is the name of a user
2243 variable/function), then skip to normal symbol processing. */
2244 if (PARSER_RESULT (parser)->line_offset.sign != LINE_OFFSET_UNKNOWN)
2246 /* Consume this token. */
2247 linespec_lexer_consume_token (parser);
2249 goto convert_to_sals;
2252 else if (token.type != LSTOKEN_STRING && token.type != LSTOKEN_NUMBER)
2253 unexpected_linespec_error (parser);
2255 /* Now we can recognize keywords. */
2256 parser->keyword_ok = 1;
2258 /* Shortcut: If the next token is not LSTOKEN_COLON, we know that
2259 this token cannot represent a filename. */
2260 token = linespec_lexer_peek_token (parser);
2262 if (token.type == LSTOKEN_COLON)
2264 char *user_filename;
2266 /* Get the current token again and extract the filename. */
2267 token = linespec_lexer_lex_one (parser);
2268 user_filename = copy_token_string (token);
2270 /* Check if the input is a filename. */
2271 TRY_CATCH (file_exception, RETURN_MASK_ERROR)
2273 PARSER_RESULT (parser)->file_symtabs
2274 = symtabs_from_filename (user_filename);
2277 if (file_exception.reason >= 0)
2279 /* Symtabs were found for the file. Record the filename. */
2280 PARSER_RESULT (parser)->source_filename = user_filename;
2282 /* Get the next token. */
2283 token = linespec_lexer_consume_token (parser);
2285 /* This is LSTOKEN_COLON; consume it. */
2286 linespec_lexer_consume_token (parser);
2290 /* No symtabs found -- discard user_filename. */
2291 xfree (user_filename);
2293 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2294 VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL);
2297 /* If the next token is not EOI, KEYWORD, or COMMA, issue an error. */
2298 else if (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD
2299 && token.type != LSTOKEN_COMMA)
2301 /* TOKEN is the _next_ token, not the one currently in the parser.
2302 Consuming the token will give the correct error message. */
2303 linespec_lexer_consume_token (parser);
2304 unexpected_linespec_error (parser);
2308 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2309 VEC_safe_push (symtab_ptr, PARSER_RESULT (parser)->file_symtabs, NULL);
2312 /* Parse the rest of the linespec. */
2313 linespec_parse_basic (parser);
2315 if (PARSER_RESULT (parser)->function_symbols == NULL
2316 && PARSER_RESULT (parser)->labels.label_symbols == NULL
2317 && PARSER_RESULT (parser)->line_offset.sign == LINE_OFFSET_UNKNOWN
2318 && PARSER_RESULT (parser)->minimal_symbols == NULL)
2320 /* The linespec didn't parse. Re-throw the file exception if
2322 if (file_exception.reason < 0)
2323 throw_exception (file_exception);
2325 /* Otherwise, the symbol is not found. */
2326 symbol_not_found_error (PARSER_RESULT (parser)->function_name,
2327 PARSER_RESULT (parser)->source_filename);
2332 /* Get the last token and record how much of the input was parsed,
2334 token = linespec_lexer_lex_one (parser);
2335 if (token.type != LSTOKEN_EOI && token.type != LSTOKEN_KEYWORD)
2336 PARSER_STREAM (parser) = LS_TOKEN_STOKEN (token).ptr;
2338 /* Convert the data in PARSER_RESULT to SALs. */
2339 values = convert_linespec_to_sals (PARSER_STATE (parser),
2340 PARSER_RESULT (parser));
2346 /* A constructor for linespec_state. */
2349 linespec_state_constructor (struct linespec_state *self,
2350 int flags, const struct language_defn *language,
2351 struct symtab *default_symtab,
2353 struct linespec_result *canonical)
2355 memset (self, 0, sizeof (*self));
2356 self->language = language;
2357 self->funfirstline = (flags & DECODE_LINE_FUNFIRSTLINE) ? 1 : 0;
2358 self->list_mode = (flags & DECODE_LINE_LIST_MODE) ? 1 : 0;
2359 self->default_symtab = default_symtab;
2360 self->default_line = default_line;
2361 self->canonical = canonical;
2362 self->program_space = current_program_space;
2363 self->addr_set = htab_create_alloc (10, hash_address_entry, eq_address_entry,
2364 xfree, xcalloc, xfree);
2367 /* Initialize a new linespec parser. */
2370 linespec_parser_new (linespec_parser *parser,
2371 int flags, const struct language_defn *language,
2372 struct symtab *default_symtab,
2374 struct linespec_result *canonical)
2376 parser->lexer.current.type = LSTOKEN_CONSUMED;
2377 memset (PARSER_RESULT (parser), 0, sizeof (struct linespec));
2378 PARSER_RESULT (parser)->line_offset.sign = LINE_OFFSET_UNKNOWN;
2379 linespec_state_constructor (PARSER_STATE (parser), flags, language,
2380 default_symtab, default_line, canonical);
2383 /* A destructor for linespec_state. */
2386 linespec_state_destructor (struct linespec_state *self)
2388 htab_delete (self->addr_set);
2391 /* Delete a linespec parser. */
2394 linespec_parser_delete (void *arg)
2396 linespec_parser *parser = (linespec_parser *) arg;
2398 xfree ((char *) PARSER_RESULT (parser)->expression);
2399 xfree ((char *) PARSER_RESULT (parser)->source_filename);
2400 xfree ((char *) PARSER_RESULT (parser)->label_name);
2401 xfree ((char *) PARSER_RESULT (parser)->function_name);
2403 if (PARSER_RESULT (parser)->file_symtabs != NULL)
2404 VEC_free (symtab_ptr, PARSER_RESULT (parser)->file_symtabs);
2406 if (PARSER_RESULT (parser)->function_symbols != NULL)
2407 VEC_free (symbolp, PARSER_RESULT (parser)->function_symbols);
2409 if (PARSER_RESULT (parser)->minimal_symbols != NULL)
2410 VEC_free (minsym_and_objfile_d, PARSER_RESULT (parser)->minimal_symbols);
2412 if (PARSER_RESULT (parser)->labels.label_symbols != NULL)
2413 VEC_free (symbolp, PARSER_RESULT (parser)->labels.label_symbols);
2415 if (PARSER_RESULT (parser)->labels.function_symbols != NULL)
2416 VEC_free (symbolp, PARSER_RESULT (parser)->labels.function_symbols);
2418 linespec_state_destructor (PARSER_STATE (parser));
2421 /* See linespec.h. */
2424 decode_line_full (char **argptr, int flags,
2425 struct symtab *default_symtab,
2426 int default_line, struct linespec_result *canonical,
2427 const char *select_mode,
2430 struct symtabs_and_lines result;
2431 struct cleanup *cleanups;
2432 VEC (const_char_ptr) *filters = NULL;
2433 linespec_parser parser;
2434 struct linespec_state *state;
2436 gdb_assert (canonical != NULL);
2437 /* The filter only makes sense for 'all'. */
2438 gdb_assert (filter == NULL || select_mode == multiple_symbols_all);
2439 gdb_assert (select_mode == NULL
2440 || select_mode == multiple_symbols_all
2441 || select_mode == multiple_symbols_ask
2442 || select_mode == multiple_symbols_cancel);
2443 gdb_assert ((flags & DECODE_LINE_LIST_MODE) == 0);
2445 linespec_parser_new (&parser, flags, current_language, default_symtab,
2446 default_line, canonical);
2447 cleanups = make_cleanup (linespec_parser_delete, &parser);
2448 save_current_program_space ();
2450 result = parse_linespec (&parser, argptr);
2451 state = PARSER_STATE (&parser);
2453 gdb_assert (result.nelts == 1 || canonical->pre_expanded);
2454 gdb_assert (canonical->addr_string != NULL);
2455 canonical->pre_expanded = 1;
2457 /* Arrange for allocated canonical names to be freed. */
2458 if (result.nelts > 0)
2462 make_cleanup (xfree, state->canonical_names);
2463 for (i = 0; i < result.nelts; ++i)
2465 gdb_assert (state->canonical_names[i].suffix != NULL);
2466 make_cleanup (xfree, state->canonical_names[i].suffix);
2470 if (select_mode == NULL)
2472 if (ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ())))
2473 select_mode = multiple_symbols_all;
2475 select_mode = multiple_symbols_select_mode ();
2478 if (select_mode == multiple_symbols_all)
2482 make_cleanup (VEC_cleanup (const_char_ptr), &filters);
2483 VEC_safe_push (const_char_ptr, filters, filter);
2484 filter_results (state, &result, filters);
2487 convert_results_to_lsals (state, &result);
2490 decode_line_2 (state, &result, select_mode);
2492 do_cleanups (cleanups);
2495 /* See linespec.h. */
2497 struct symtabs_and_lines
2498 decode_line_1 (char **argptr, int flags,
2499 struct symtab *default_symtab,
2502 struct symtabs_and_lines result;
2503 linespec_parser parser;
2504 struct cleanup *cleanups;
2506 linespec_parser_new (&parser, flags, current_language, default_symtab,
2507 default_line, NULL);
2508 cleanups = make_cleanup (linespec_parser_delete, &parser);
2509 save_current_program_space ();
2511 result = parse_linespec (&parser, argptr);
2513 do_cleanups (cleanups);
2517 /* See linespec.h. */
2519 struct symtabs_and_lines
2520 decode_line_with_current_source (char *string, int flags)
2522 struct symtabs_and_lines sals;
2523 struct symtab_and_line cursal;
2526 error (_("Empty line specification."));
2528 /* We use whatever is set as the current source line. We do not try
2529 and get a default source symtab+line or it will recursively call us! */
2530 cursal = get_current_source_symtab_and_line ();
2532 sals = decode_line_1 (&string, flags,
2533 cursal.symtab, cursal.line);
2536 error (_("Junk at end of line specification: %s"), string);
2540 /* See linespec.h. */
2542 struct symtabs_and_lines
2543 decode_line_with_last_displayed (char *string, int flags)
2545 struct symtabs_and_lines sals;
2548 error (_("Empty line specification."));
2550 if (last_displayed_sal_is_valid ())
2551 sals = decode_line_1 (&string, flags,
2552 get_last_displayed_symtab (),
2553 get_last_displayed_line ());
2555 sals = decode_line_1 (&string, flags, (struct symtab *) NULL, 0);
2558 error (_("Junk at end of line specification: %s"), string);
2564 /* First, some functions to initialize stuff at the beggining of the
2568 initialize_defaults (struct symtab **default_symtab, int *default_line)
2570 if (*default_symtab == 0)
2572 /* Use whatever we have for the default source line. We don't use
2573 get_current_or_default_symtab_and_line as it can recurse and call
2575 struct symtab_and_line cursal =
2576 get_current_source_symtab_and_line ();
2578 *default_symtab = cursal.symtab;
2579 *default_line = cursal.line;
2585 /* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR,
2586 advancing EXP_PTR past any parsed text. */
2589 linespec_expression_to_pc (const char **exp_ptr)
2591 if (current_program_space->executing_startup)
2592 /* The error message doesn't really matter, because this case
2593 should only hit during breakpoint reset. */
2594 throw_error (NOT_FOUND_ERROR, _("cannot evaluate expressions while "
2595 "program space is in startup"));
2598 return value_as_address (parse_to_comma_and_eval (exp_ptr));
2603 /* Here's where we recognise an Objective-C Selector. An Objective C
2604 selector may be implemented by more than one class, therefore it
2605 may represent more than one method/function. This gives us a
2606 situation somewhat analogous to C++ overloading. If there's more
2607 than one method that could represent the selector, then use some of
2608 the existing C++ code to let the user choose one. */
2610 static struct symtabs_and_lines
2611 decode_objc (struct linespec_state *self, linespec_p ls, char **argptr)
2613 struct collect_info info;
2614 VEC (const_char_ptr) *symbol_names = NULL;
2615 struct symtabs_and_lines values;
2617 struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr),
2621 info.file_symtabs = NULL;
2622 VEC_safe_push (symtab_ptr, info.file_symtabs, NULL);
2623 make_cleanup (VEC_cleanup (symtab_ptr), &info.file_symtabs);
2624 info.result.symbols = NULL;
2625 info.result.minimal_symbols = NULL;
2629 new_argptr = find_imps (*argptr, &symbol_names);
2630 if (VEC_empty (const_char_ptr, symbol_names))
2632 do_cleanups (cleanup);
2636 add_all_symbol_names_from_pspace (&info, NULL, symbol_names);
2638 if (!VEC_empty (symbolp, info.result.symbols)
2639 || !VEC_empty (minsym_and_objfile_d, info.result.minimal_symbols))
2643 saved_arg = alloca (new_argptr - *argptr + 1);
2644 memcpy (saved_arg, *argptr, new_argptr - *argptr);
2645 saved_arg[new_argptr - *argptr] = '\0';
2647 ls->function_name = xstrdup (saved_arg);
2648 ls->function_symbols = info.result.symbols;
2649 ls->minimal_symbols = info.result.minimal_symbols;
2650 values = convert_linespec_to_sals (self, ls);
2652 if (self->canonical)
2654 self->canonical->pre_expanded = 1;
2655 if (ls->source_filename)
2656 self->canonical->addr_string
2657 = xstrprintf ("%s:%s", ls->source_filename, saved_arg);
2659 self->canonical->addr_string = xstrdup (saved_arg);
2663 *argptr = new_argptr;
2665 do_cleanups (cleanup);
2670 /* An instance of this type is used when collecting prefix symbols for
2673 struct decode_compound_collector
2675 /* The result vector. */
2676 VEC (symbolp) *symbols;
2678 /* A hash table of all symbols we found. We use this to avoid
2679 adding any symbol more than once. */
2683 /* A callback for iterate_over_symbols that is used by
2684 lookup_prefix_sym to collect type symbols. */
2687 collect_one_symbol (struct symbol *sym, void *d)
2689 struct decode_compound_collector *collector = d;
2693 if (SYMBOL_CLASS (sym) != LOC_TYPEDEF)
2694 return 1; /* Continue iterating. */
2696 t = SYMBOL_TYPE (sym);
2698 if (TYPE_CODE (t) != TYPE_CODE_STRUCT
2699 && TYPE_CODE (t) != TYPE_CODE_UNION
2700 && TYPE_CODE (t) != TYPE_CODE_NAMESPACE)
2701 return 1; /* Continue iterating. */
2703 slot = htab_find_slot (collector->unique_syms, sym, INSERT);
2707 VEC_safe_push (symbolp, collector->symbols, sym);
2710 return 1; /* Continue iterating. */
2713 /* Return any symbols corresponding to CLASS_NAME in FILE_SYMTABS. */
2715 static VEC (symbolp) *
2716 lookup_prefix_sym (struct linespec_state *state, VEC (symtab_ptr) *file_symtabs,
2717 const char *class_name)
2721 struct decode_compound_collector collector;
2722 struct cleanup *outer;
2723 struct cleanup *cleanup;
2725 collector.symbols = NULL;
2726 outer = make_cleanup (VEC_cleanup (symbolp), &collector.symbols);
2728 collector.unique_syms = htab_create_alloc (1, htab_hash_pointer,
2729 htab_eq_pointer, NULL,
2731 cleanup = make_cleanup_htab_delete (collector.unique_syms);
2733 for (ix = 0; VEC_iterate (symtab_ptr, file_symtabs, ix, elt); ++ix)
2737 iterate_over_all_matching_symtabs (state, class_name, STRUCT_DOMAIN,
2738 collect_one_symbol, &collector,
2740 iterate_over_all_matching_symtabs (state, class_name, VAR_DOMAIN,
2741 collect_one_symbol, &collector,
2746 /* Program spaces that are executing startup should have
2747 been filtered out earlier. */
2748 gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup);
2749 set_current_program_space (SYMTAB_PSPACE (elt));
2750 iterate_over_file_blocks (elt, class_name, STRUCT_DOMAIN,
2751 collect_one_symbol, &collector);
2752 iterate_over_file_blocks (elt, class_name, VAR_DOMAIN,
2753 collect_one_symbol, &collector);
2757 do_cleanups (cleanup);
2758 discard_cleanups (outer);
2759 return collector.symbols;
2762 /* A qsort comparison function for symbols. The resulting order does
2763 not actually matter; we just need to be able to sort them so that
2764 symbols with the same program space end up next to each other. */
2767 compare_symbols (const void *a, const void *b)
2769 struct symbol * const *sa = a;
2770 struct symbol * const *sb = b;
2773 uia = (uintptr_t) SYMTAB_PSPACE (SYMBOL_SYMTAB (*sa));
2774 uib = (uintptr_t) SYMTAB_PSPACE (SYMBOL_SYMTAB (*sb));
2781 uia = (uintptr_t) *sa;
2782 uib = (uintptr_t) *sb;
2792 /* Like compare_symbols but for minimal symbols. */
2795 compare_msymbols (const void *a, const void *b)
2797 const struct minsym_and_objfile *sa = a;
2798 const struct minsym_and_objfile *sb = b;
2801 uia = (uintptr_t) sa->objfile->pspace;
2802 uib = (uintptr_t) sa->objfile->pspace;
2809 uia = (uintptr_t) sa->minsym;
2810 uib = (uintptr_t) sb->minsym;
2820 /* Look for all the matching instances of each symbol in NAMES. Only
2821 instances from PSPACE are considered; other program spaces are
2822 handled by our caller. If PSPACE is NULL, then all program spaces
2823 are considered. Results are stored into INFO. */
2826 add_all_symbol_names_from_pspace (struct collect_info *info,
2827 struct program_space *pspace,
2828 VEC (const_char_ptr) *names)
2833 for (ix = 0; VEC_iterate (const_char_ptr, names, ix, iter); ++ix)
2834 add_matching_symbols_to_info (iter, info, pspace);
2838 find_superclass_methods (VEC (typep) *superclasses,
2840 VEC (const_char_ptr) **result_names)
2842 int old_len = VEC_length (const_char_ptr, *result_names);
2843 VEC (typep) *iter_classes;
2844 struct cleanup *cleanup = make_cleanup (null_cleanup, NULL);
2846 iter_classes = superclasses;
2849 VEC (typep) *new_supers = NULL;
2853 make_cleanup (VEC_cleanup (typep), &new_supers);
2854 for (ix = 0; VEC_iterate (typep, iter_classes, ix, t); ++ix)
2855 find_methods (t, name, result_names, &new_supers);
2857 if (VEC_length (const_char_ptr, *result_names) != old_len
2858 || VEC_empty (typep, new_supers))
2861 iter_classes = new_supers;
2864 do_cleanups (cleanup);
2867 /* This finds the method METHOD_NAME in the class CLASS_NAME whose type is
2868 given by one of the symbols in SYM_CLASSES. Matches are returned
2869 in SYMBOLS (for debug symbols) and MINSYMS (for minimal symbols). */
2872 find_method (struct linespec_state *self, VEC (symtab_ptr) *file_symtabs,
2873 const char *class_name, const char *method_name,
2874 VEC (symbolp) *sym_classes, VEC (symbolp) **symbols,
2875 VEC (minsym_and_objfile_d) **minsyms)
2878 struct cleanup *cleanup = make_cleanup (null_cleanup, NULL);
2880 int last_result_len;
2881 VEC (typep) *superclass_vec;
2882 VEC (const_char_ptr) *result_names;
2883 struct collect_info info;
2885 /* Sort symbols so that symbols with the same program space are next
2887 qsort (VEC_address (symbolp, sym_classes),
2888 VEC_length (symbolp, sym_classes),
2893 info.file_symtabs = file_symtabs;
2894 info.result.symbols = NULL;
2895 info.result.minimal_symbols = NULL;
2897 /* Iterate over all the types, looking for the names of existing
2898 methods matching METHOD_NAME. If we cannot find a direct method in a
2899 given program space, then we consider inherited methods; this is
2900 not ideal (ideal would be to respect C++ hiding rules), but it
2901 seems good enough and is what GDB has historically done. We only
2902 need to collect the names because later we find all symbols with
2903 those names. This loop is written in a somewhat funny way
2904 because we collect data across the program space before deciding
2906 superclass_vec = NULL;
2907 make_cleanup (VEC_cleanup (typep), &superclass_vec);
2908 result_names = NULL;
2909 make_cleanup (VEC_cleanup (const_char_ptr), &result_names);
2910 last_result_len = 0;
2911 for (ix = 0; VEC_iterate (symbolp, sym_classes, ix, sym); ++ix)
2914 struct program_space *pspace;
2916 /* Program spaces that are executing startup should have
2917 been filtered out earlier. */
2918 gdb_assert (!SYMTAB_PSPACE (SYMBOL_SYMTAB (sym))->executing_startup);
2919 pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym));
2920 set_current_program_space (pspace);
2921 t = check_typedef (SYMBOL_TYPE (sym));
2922 find_methods (t, method_name, &result_names, &superclass_vec);
2924 /* Handle all items from a single program space at once; and be
2925 sure not to miss the last batch. */
2926 if (ix == VEC_length (symbolp, sym_classes) - 1
2928 != SYMTAB_PSPACE (SYMBOL_SYMTAB (VEC_index (symbolp, sym_classes,
2931 /* If we did not find a direct implementation anywhere in
2932 this program space, consider superclasses. */
2933 if (VEC_length (const_char_ptr, result_names) == last_result_len)
2934 find_superclass_methods (superclass_vec, method_name,
2937 /* We have a list of candidate symbol names, so now we
2938 iterate over the symbol tables looking for all
2939 matches in this pspace. */
2940 add_all_symbol_names_from_pspace (&info, pspace, result_names);
2942 VEC_truncate (typep, superclass_vec, 0);
2943 last_result_len = VEC_length (const_char_ptr, result_names);
2947 if (!VEC_empty (symbolp, info.result.symbols)
2948 || !VEC_empty (minsym_and_objfile_d, info.result.minimal_symbols))
2950 *symbols = info.result.symbols;
2951 *minsyms = info.result.minimal_symbols;
2952 do_cleanups (cleanup);
2956 /* Throw an NOT_FOUND_ERROR. This will be caught by the caller
2957 and other attempts to locate the symbol will be made. */
2958 throw_error (NOT_FOUND_ERROR, _("see caller, this text doesn't matter"));
2963 /* This object is used when collecting all matching symtabs. */
2965 struct symtab_collector
2967 /* The result vector of symtabs. */
2968 VEC (symtab_ptr) *symtabs;
2970 /* This is used to ensure the symtabs are unique. */
2971 htab_t symtab_table;
2974 /* Callback for iterate_over_symtabs. */
2977 add_symtabs_to_list (struct symtab *symtab, void *d)
2979 struct symtab_collector *data = d;
2982 slot = htab_find_slot (data->symtab_table, symtab, INSERT);
2986 VEC_safe_push (symtab_ptr, data->symtabs, symtab);
2992 /* Given a file name, return a VEC of all matching symtabs. */
2994 static VEC (symtab_ptr) *
2995 collect_symtabs_from_filename (const char *file)
2997 struct symtab_collector collector;
2998 struct cleanup *cleanups;
2999 struct program_space *pspace;
3001 collector.symtabs = NULL;
3002 collector.symtab_table = htab_create (1, htab_hash_pointer, htab_eq_pointer,
3004 cleanups = make_cleanup_htab_delete (collector.symtab_table);
3006 /* Find that file's data. */
3007 ALL_PSPACES (pspace)
3009 if (pspace->executing_startup)
3012 set_current_program_space (pspace);
3013 iterate_over_symtabs (file, add_symtabs_to_list, &collector);
3016 do_cleanups (cleanups);
3017 return collector.symtabs;
3020 /* Return all the symtabs associated to the FILENAME. */
3022 static VEC (symtab_ptr) *
3023 symtabs_from_filename (const char *filename)
3025 VEC (symtab_ptr) *result;
3027 result = collect_symtabs_from_filename (filename);
3029 if (VEC_empty (symtab_ptr, result))
3031 if (!have_full_symbols () && !have_partial_symbols ())
3032 throw_error (NOT_FOUND_ERROR,
3033 _("No symbol table is loaded. "
3034 "Use the \"file\" command."));
3035 throw_error (NOT_FOUND_ERROR, _("No source file named %s."), filename);
3041 /* Look up a function symbol named NAME in symtabs FILE_SYMTABS. Matching
3042 debug symbols are returned in SYMBOLS. Matching minimal symbols are
3043 returned in MINSYMS. */
3046 find_function_symbols (struct linespec_state *state,
3047 VEC (symtab_ptr) *file_symtabs, const char *name,
3048 VEC (symbolp) **symbols,
3049 VEC (minsym_and_objfile_d) **minsyms)
3051 struct collect_info info;
3052 VEC (const_char_ptr) *symbol_names = NULL;
3053 struct cleanup *cleanup = make_cleanup (VEC_cleanup (const_char_ptr),
3057 info.result.symbols = NULL;
3058 info.result.minimal_symbols = NULL;
3059 info.file_symtabs = file_symtabs;
3061 /* Try NAME as an Objective-C selector. */
3062 find_imps ((char *) name, &symbol_names);
3063 if (!VEC_empty (const_char_ptr, symbol_names))
3064 add_all_symbol_names_from_pspace (&info, NULL, symbol_names);
3066 add_matching_symbols_to_info (name, &info, NULL);
3068 do_cleanups (cleanup);
3070 if (VEC_empty (symbolp, info.result.symbols))
3072 VEC_free (symbolp, info.result.symbols);
3076 *symbols = info.result.symbols;
3078 if (VEC_empty (minsym_and_objfile_d, info.result.minimal_symbols))
3080 VEC_free (minsym_and_objfile_d, info.result.minimal_symbols);
3084 *minsyms = info.result.minimal_symbols;
3087 /* Find all symbols named NAME in FILE_SYMTABS, returning debug symbols
3088 in SYMBOLS and minimal symbols in MINSYMS. */
3091 find_linespec_symbols (struct linespec_state *state,
3092 VEC (symtab_ptr) *file_symtabs,
3094 VEC (symbolp) **symbols,
3095 VEC (minsym_and_objfile_d) **minsyms)
3097 struct cleanup *cleanup;
3099 const char *lookup_name;
3100 volatile struct gdb_exception except;
3102 cleanup = demangle_for_lookup (name, state->language->la_language,
3104 if (state->language->la_language == language_ada)
3106 /* In Ada, the symbol lookups are performed using the encoded
3107 name rather than the demangled name. */
3108 lookup_name = ada_name_for_lookup (name);
3109 make_cleanup (xfree, (void *) lookup_name);
3112 canon = cp_canonicalize_string_no_typedefs (lookup_name);
3115 lookup_name = canon;
3116 make_cleanup (xfree, canon);
3119 /* It's important to not call expand_symtabs_matching unnecessarily
3120 as it can really slow things down (by unnecessarily expanding
3121 potentially 1000s of symtabs, which when debugging some apps can
3122 cost 100s of seconds). Avoid this to some extent by *first* calling
3123 find_function_symbols, and only if that doesn't find anything
3124 *then* call find_method. This handles two important cases:
3125 1) break (anonymous namespace)::foo
3126 2) break class::method where method is in class (and not a baseclass) */
3128 find_function_symbols (state, file_symtabs, lookup_name,
3131 /* If we were unable to locate a symbol of the same name, try dividing
3132 the name into class and method names and searching the class and its
3134 if (VEC_empty (symbolp, *symbols)
3135 && VEC_empty (minsym_and_objfile_d, *minsyms))
3137 char *klass, *method;
3138 const char *last, *p, *scope_op;
3139 VEC (symbolp) *classes;
3141 /* See if we can find a scope operator and break this symbol
3142 name into namespaces${SCOPE_OPERATOR}class_name and method_name. */
3144 p = find_toplevel_string (lookup_name, scope_op);
3147 /* No C++ scope operator. Try Java. */
3149 p = find_toplevel_string (lookup_name, scope_op);
3156 p = find_toplevel_string (p + strlen (scope_op), scope_op);
3159 /* If no scope operator was found, there is nothing more we can do;
3160 we already attempted to lookup the entire name as a symbol
3164 do_cleanups (cleanup);
3168 /* LOOKUP_NAME points to the class name.
3169 LAST points to the method name. */
3170 klass = xmalloc ((last - lookup_name + 1) * sizeof (char));
3171 make_cleanup (xfree, klass);
3172 strncpy (klass, lookup_name, last - lookup_name);
3173 klass[last - lookup_name] = '\0';
3175 /* Skip past the scope operator. */
3176 last += strlen (scope_op);
3177 method = xmalloc ((strlen (last) + 1) * sizeof (char));
3178 make_cleanup (xfree, method);
3179 strcpy (method, last);
3181 /* Find a list of classes named KLASS. */
3182 classes = lookup_prefix_sym (state, file_symtabs, klass);
3183 make_cleanup (VEC_cleanup (symbolp), &classes);
3185 if (!VEC_empty (symbolp, classes))
3187 /* Now locate a list of suitable methods named METHOD. */
3188 TRY_CATCH (except, RETURN_MASK_ERROR)
3190 find_method (state, file_symtabs, klass, method, classes,
3194 /* If successful, we're done. If NOT_FOUND_ERROR
3195 was not thrown, rethrow the exception that we did get. */
3196 if (except.reason < 0 && except.error != NOT_FOUND_ERROR)
3197 throw_exception (except);
3201 do_cleanups (cleanup);
3204 /* Return all labels named NAME in FUNCTION_SYMBOLS. Return the
3205 actual function symbol in which the label was found in LABEL_FUNC_RET. */
3207 static VEC (symbolp) *
3208 find_label_symbols (struct linespec_state *self,
3209 VEC (symbolp) *function_symbols,
3210 VEC (symbolp) **label_funcs_ret, const char *name)
3213 struct block *block;
3215 struct symbol *fn_sym;
3216 VEC (symbolp) *result = NULL;
3218 if (function_symbols == NULL)
3220 set_current_program_space (self->program_space);
3221 block = get_current_search_block ();
3224 block && !BLOCK_FUNCTION (block);
3225 block = BLOCK_SUPERBLOCK (block))
3229 fn_sym = BLOCK_FUNCTION (block);
3231 sym = lookup_symbol (name, block, LABEL_DOMAIN, 0);
3235 VEC_safe_push (symbolp, result, sym);
3236 VEC_safe_push (symbolp, *label_funcs_ret, fn_sym);
3242 VEC_iterate (symbolp, function_symbols, ix, fn_sym); ++ix)
3244 set_current_program_space (SYMTAB_PSPACE (SYMBOL_SYMTAB (fn_sym)));
3245 block = SYMBOL_BLOCK_VALUE (fn_sym);
3246 sym = lookup_symbol (name, block, LABEL_DOMAIN, 0);
3250 VEC_safe_push (symbolp, result, sym);
3251 VEC_safe_push (symbolp, *label_funcs_ret, fn_sym);
3261 /* A helper for create_sals_line_offset that handles the 'list_mode' case. */
3264 decode_digits_list_mode (struct linespec_state *self,
3266 struct symtabs_and_lines *values,
3267 struct symtab_and_line val)
3272 gdb_assert (self->list_mode);
3274 for (ix = 0; VEC_iterate (symtab_ptr, ls->file_symtabs, ix, elt);
3277 /* The logic above should ensure this. */
3278 gdb_assert (elt != NULL);
3280 set_current_program_space (SYMTAB_PSPACE (elt));
3282 /* Simplistic search just for the list command. */
3283 val.symtab = find_line_symtab (elt, val.line, NULL, NULL);
3284 if (val.symtab == NULL)
3286 val.pspace = SYMTAB_PSPACE (elt);
3288 val.explicit_line = 1;
3290 add_sal_to_sals (self, values, &val, NULL, 0);
3294 /* A helper for create_sals_line_offset that iterates over the symtabs,
3295 adding lines to the VEC. */
3298 decode_digits_ordinary (struct linespec_state *self,
3301 struct symtabs_and_lines *sals,
3302 struct linetable_entry **best_entry)
3307 for (ix = 0; VEC_iterate (symtab_ptr, ls->file_symtabs, ix, elt); ++ix)
3310 VEC (CORE_ADDR) *pcs;
3313 /* The logic above should ensure this. */
3314 gdb_assert (elt != NULL);
3316 set_current_program_space (SYMTAB_PSPACE (elt));
3318 pcs = find_pcs_for_symtab_line (elt, line, best_entry);
3319 for (i = 0; VEC_iterate (CORE_ADDR, pcs, i, pc); ++i)
3321 struct symtab_and_line sal;
3324 sal.pspace = SYMTAB_PSPACE (elt);
3328 add_sal_to_sals_basic (sals, &sal);
3331 VEC_free (CORE_ADDR, pcs);
3337 /* Return the line offset represented by VARIABLE. */
3339 static struct line_offset
3340 linespec_parse_variable (struct linespec_state *self, const char *variable)
3344 struct line_offset offset = {0, LINE_OFFSET_NONE};
3346 p = (variable[1] == '$') ? variable + 2 : variable + 1;
3349 while (*p >= '0' && *p <= '9')
3351 if (!*p) /* Reached end of token without hitting non-digit. */
3353 /* We have a value history reference. */
3354 struct value *val_history;
3356 sscanf ((variable[1] == '$') ? variable + 2 : variable + 1, "%d", &index);
3358 = access_value_history ((variable[1] == '$') ? -index : index);
3359 if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT)
3360 error (_("History values used in line "
3361 "specs must have integer values."));
3362 offset.offset = value_as_long (val_history);
3366 /* Not all digits -- may be user variable/function or a
3367 convenience variable. */
3369 struct internalvar *ivar;
3371 /* Try it as a convenience variable. If it is not a convenience
3372 variable, return and allow normal symbol lookup to occur. */
3373 ivar = lookup_only_internalvar (variable + 1);
3375 /* No internal variable with that name. Mark the offset
3376 as unknown to allow the name to be looked up as a symbol. */
3377 offset.sign = LINE_OFFSET_UNKNOWN;
3380 /* We found a valid variable name. If it is not an integer,
3382 if (!get_internalvar_integer (ivar, &valx))
3383 error (_("Convenience variables used in line "
3384 "specs must have integer values."));
3386 offset.offset = valx;
3394 /* A callback used to possibly add a symbol to the results. */
3397 collect_symbols (struct symbol *sym, void *data)
3399 struct collect_info *info = data;
3401 /* In list mode, add all matching symbols, regardless of class.
3402 This allows the user to type "list a_global_variable". */
3403 if (SYMBOL_CLASS (sym) == LOC_BLOCK || info->state->list_mode)
3404 VEC_safe_push (symbolp, info->result.symbols, sym);
3405 return 1; /* Continue iterating. */
3408 /* We've found a minimal symbol MSYMBOL in OBJFILE to associate with our
3409 linespec; return the SAL in RESULT. */
3412 minsym_found (struct linespec_state *self, struct objfile *objfile,
3413 struct minimal_symbol *msymbol,
3414 struct symtabs_and_lines *result)
3416 struct gdbarch *gdbarch = get_objfile_arch (objfile);
3418 struct symtab_and_line sal;
3420 sal = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol),
3421 (struct obj_section *) 0, 0);
3422 sal.section = SYMBOL_OBJ_SECTION (objfile, msymbol);
3424 /* The minimal symbol might point to a function descriptor;
3425 resolve it to the actual code address instead. */
3426 pc = gdbarch_convert_from_func_ptr_addr (gdbarch, sal.pc, ¤t_target);
3428 sal = find_pc_sect_line (pc, NULL, 0);
3430 if (self->funfirstline)
3431 skip_prologue_sal (&sal);
3433 if (maybe_add_address (self->addr_set, objfile->pspace, sal.pc))
3434 add_sal_to_sals (self, result, &sal, SYMBOL_NATURAL_NAME (msymbol), 0);
3437 /* A helper struct to pass some data through
3438 iterate_over_minimal_symbols. */
3440 struct collect_minsyms
3442 /* The objfile we're examining. */
3443 struct objfile *objfile;
3445 /* The funfirstline setting from the initial call. */
3448 /* The list_mode setting from the initial call. */
3451 /* The resulting symbols. */
3452 VEC (minsym_and_objfile_d) *msyms;
3455 /* A helper function to classify a minimal_symbol_type according to
3459 classify_mtype (enum minimal_symbol_type t)
3466 /* Intermediate priority. */
3469 case mst_solib_trampoline:
3470 /* Lowest priority. */
3474 /* Highest priority. */
3479 /* Callback for qsort that sorts symbols by priority. */
3482 compare_msyms (const void *a, const void *b)
3484 const minsym_and_objfile_d *moa = a;
3485 const minsym_and_objfile_d *mob = b;
3486 enum minimal_symbol_type ta = MSYMBOL_TYPE (moa->minsym);
3487 enum minimal_symbol_type tb = MSYMBOL_TYPE (mob->minsym);
3489 return classify_mtype (ta) - classify_mtype (tb);
3492 /* Callback for iterate_over_minimal_symbols that adds the symbol to
3496 add_minsym (struct minimal_symbol *minsym, void *d)
3498 struct collect_minsyms *info = d;
3499 minsym_and_objfile_d mo;
3501 /* Exclude data symbols when looking for breakpoint locations. */
3502 if (!info->list_mode)
3503 switch (minsym->type)
3505 case mst_slot_got_plt:
3512 /* Make sure this minsym is not a function descriptor
3513 before we decide to discard it. */
3514 struct gdbarch *gdbarch = info->objfile->gdbarch;
3515 CORE_ADDR addr = gdbarch_convert_from_func_ptr_addr
3516 (gdbarch, SYMBOL_VALUE_ADDRESS (minsym),
3519 if (addr == SYMBOL_VALUE_ADDRESS (minsym))
3525 mo.objfile = info->objfile;
3526 VEC_safe_push (minsym_and_objfile_d, info->msyms, &mo);
3529 /* Search minimal symbols in all objfiles for NAME. If SEARCH_PSPACE
3530 is not NULL, the search is restricted to just that program
3534 search_minsyms_for_name (struct collect_info *info, const char *name,
3535 struct program_space *search_pspace)
3537 struct objfile *objfile;
3538 struct program_space *pspace;
3540 ALL_PSPACES (pspace)
3542 struct collect_minsyms local;
3543 struct cleanup *cleanup;
3545 if (search_pspace != NULL && search_pspace != pspace)
3547 if (pspace->executing_startup)
3550 set_current_program_space (pspace);
3552 memset (&local, 0, sizeof (local));
3553 local.funfirstline = info->state->funfirstline;
3554 local.list_mode = info->state->list_mode;
3556 cleanup = make_cleanup (VEC_cleanup (minsym_and_objfile_d),
3559 ALL_OBJFILES (objfile)
3561 local.objfile = objfile;
3562 iterate_over_minimal_symbols (objfile, name, add_minsym, &local);
3565 if (!VEC_empty (minsym_and_objfile_d, local.msyms))
3569 minsym_and_objfile_d *item;
3571 qsort (VEC_address (minsym_and_objfile_d, local.msyms),
3572 VEC_length (minsym_and_objfile_d, local.msyms),
3573 sizeof (minsym_and_objfile_d),
3576 /* Now the minsyms are in classification order. So, we walk
3577 over them and process just the minsyms with the same
3578 classification as the very first minsym in the list. */
3579 item = VEC_index (minsym_and_objfile_d, local.msyms, 0);
3580 classification = classify_mtype (MSYMBOL_TYPE (item->minsym));
3583 VEC_iterate (minsym_and_objfile_d, local.msyms, ix, item);
3586 if (classify_mtype (MSYMBOL_TYPE (item->minsym)) != classification)
3589 VEC_safe_push (minsym_and_objfile_d,
3590 info->result.minimal_symbols, item);
3594 do_cleanups (cleanup);
3598 /* A helper function to add all symbols matching NAME to INFO. If
3599 PSPACE is not NULL, the search is restricted to just that program
3603 add_matching_symbols_to_info (const char *name,
3604 struct collect_info *info,
3605 struct program_space *pspace)
3610 for (ix = 0; VEC_iterate (symtab_ptr, info->file_symtabs, ix, elt); ++ix)
3614 iterate_over_all_matching_symtabs (info->state, name, VAR_DOMAIN,
3615 collect_symbols, info,
3617 search_minsyms_for_name (info, name, pspace);
3619 else if (pspace == NULL || pspace == SYMTAB_PSPACE (elt))
3621 /* Program spaces that are executing startup should have
3622 been filtered out earlier. */
3623 gdb_assert (!SYMTAB_PSPACE (elt)->executing_startup);
3624 set_current_program_space (SYMTAB_PSPACE (elt));
3625 iterate_over_file_blocks (elt, name, VAR_DOMAIN,
3626 collect_symbols, info);
3633 /* Now come some functions that are called from multiple places within
3637 symbol_to_sal (struct symtab_and_line *result,
3638 int funfirstline, struct symbol *sym)
3640 if (SYMBOL_CLASS (sym) == LOC_BLOCK)
3642 *result = find_function_start_sal (sym, funfirstline);
3647 if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0)
3650 result->symtab = SYMBOL_SYMTAB (sym);
3651 result->line = SYMBOL_LINE (sym);
3652 result->pc = SYMBOL_VALUE_ADDRESS (sym);
3653 result->pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym));
3654 result->explicit_pc = 1;
3657 else if (funfirstline)
3661 else if (SYMBOL_LINE (sym) != 0)
3663 /* We know its line number. */
3665 result->symtab = SYMBOL_SYMTAB (sym);
3666 result->line = SYMBOL_LINE (sym);
3667 result->pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym));
3675 /* See the comment in linespec.h. */
3678 init_linespec_result (struct linespec_result *lr)
3680 memset (lr, 0, sizeof (*lr));
3683 /* See the comment in linespec.h. */
3686 destroy_linespec_result (struct linespec_result *ls)
3689 struct linespec_sals *lsal;
3691 xfree (ls->addr_string);
3692 for (i = 0; VEC_iterate (linespec_sals, ls->sals, i, lsal); ++i)
3694 xfree (lsal->canonical);
3695 xfree (lsal->sals.sals);
3697 VEC_free (linespec_sals, ls->sals);
3700 /* Cleanup function for a linespec_result. */
3703 cleanup_linespec_result (void *a)
3705 destroy_linespec_result (a);
3708 /* See the comment in linespec.h. */
3711 make_cleanup_destroy_linespec_result (struct linespec_result *ls)
3713 return make_cleanup (cleanup_linespec_result, ls);