1 /* Parser for linespec for the GNU debugger, GDB.
3 Copyright (C) 1986-2015 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
29 #include "completer.h"
31 #include "cp-support.h"
32 #include "parser-defs.h"
34 #include "objc-lang.h"
38 #include "mi/mi-cmds.h"
40 #include "arch-utils.h"
42 #include "cli/cli-utils.h"
43 #include "filenames.h"
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 typedef struct bound_minimal_symbol bound_minimal_symbol_d
;
66 DEF_VEC_O (bound_minimal_symbol_d
);
68 /* An enumeration of possible signs for a line offset. */
69 enum offset_relative_sign
74 /* A plus sign ("+") */
77 /* A minus sign ("-") */
80 /* A special "sign" for unspecified offset. */
84 /* A line offset in a linespec. */
88 /* Line offset and any specified sign. */
90 enum offset_relative_sign sign
;
93 /* A linespec. Elements of this structure are filled in by a parser
94 (either parse_linespec or some other function). The structure is
95 then converted into SALs by convert_linespec_to_sals. */
99 /* An expression and the resulting PC. Specifying an expression
100 currently precludes the use of other members. */
102 /* The expression entered by the user. */
103 const char *expression
;
105 /* The resulting PC expression derived from evaluating EXPRESSION. */
108 /* Any specified file symtabs. */
110 /* The user-supplied source filename or NULL if none was specified. */
111 const char *source_filename
;
113 /* The list of symtabs to search to which to limit the search. May not
114 be NULL. If SOURCE_FILENAME is NULL (no user-specified filename),
115 FILE_SYMTABS should contain one single NULL member. This will
116 cause the code to use the default symtab. */
117 VEC (symtab_ptr
) *file_symtabs
;
119 /* The name of a function or method and any matching symbols. */
121 /* The user-specified function name. If no function name was
122 supplied, this may be NULL. */
123 const char *function_name
;
125 /* A list of matching function symbols and minimal symbols. Both lists
126 may be NULL if no matching symbols were found. */
127 VEC (symbolp
) *function_symbols
;
128 VEC (bound_minimal_symbol_d
) *minimal_symbols
;
130 /* The name of a label and matching symbols. */
132 /* The user-specified label name. */
133 const char *label_name
;
135 /* A structure of matching label symbols and the corresponding
136 function symbol in which the label was found. Both may be NULL
137 or both must be non-NULL. */
140 VEC (symbolp
) *label_symbols
;
141 VEC (symbolp
) *function_symbols
;
144 /* Line offset. It may be LINE_OFFSET_UNKNOWN, meaning that no
145 offset was specified. */
146 struct line_offset line_offset
;
148 typedef struct linespec
*linespec_p
;
150 /* A canonical linespec represented as a symtab-related string.
152 Each entry represents the "SYMTAB:SUFFIX" linespec string.
153 SYMTAB can be converted for example by symtab_to_fullname or
154 symtab_to_filename_for_display as needed. */
156 struct linespec_canonical_name
158 /* Remaining text part of the linespec string. */
161 /* If NULL then SUFFIX is the whole linespec string. */
162 struct symtab
*symtab
;
165 /* An instance of this is used to keep all state while linespec
166 operates. This instance is passed around as a 'this' pointer to
167 the various implementation methods. */
169 struct linespec_state
171 /* The language in use during linespec processing. */
172 const struct language_defn
*language
;
174 /* The program space as seen when the module was entered. */
175 struct program_space
*program_space
;
177 /* The default symtab to use, if no other symtab is specified. */
178 struct symtab
*default_symtab
;
180 /* The default line to use. */
183 /* The 'funfirstline' value that was passed in to decode_line_1 or
187 /* Nonzero if we are running in 'list' mode; see decode_line_list. */
190 /* The 'canonical' value passed to decode_line_full, or NULL. */
191 struct linespec_result
*canonical
;
193 /* Canonical strings that mirror the symtabs_and_lines result. */
194 struct linespec_canonical_name
*canonical_names
;
196 /* This is a set of address_entry objects which is used to prevent
197 duplicate symbols from being entered into the result. */
201 /* This is a helper object that is used when collecting symbols into a
206 /* The linespec object in use. */
207 struct linespec_state
*state
;
209 /* A list of symtabs to which to restrict matches. */
210 VEC (symtab_ptr
) *file_symtabs
;
212 /* The result being accumulated. */
215 VEC (symbolp
) *symbols
;
216 VEC (bound_minimal_symbol_d
) *minimal_symbols
;
227 /* A colon "separator" */
239 /* EOI (end of input) */
245 typedef enum ls_token_type linespec_token_type
;
247 /* List of keywords */
249 static const char * const linespec_keywords
[] = { "if", "thread", "task" };
250 #define IF_KEYWORD_INDEX 0
252 /* A token of the linespec lexer */
256 /* The type of the token */
257 linespec_token_type type
;
259 /* Data for the token */
262 /* A string, given as a stoken */
263 struct stoken string
;
269 typedef struct ls_token linespec_token
;
271 #define LS_TOKEN_STOKEN(TOK) (TOK).data.string
272 #define LS_TOKEN_KEYWORD(TOK) (TOK).data.keyword
274 /* An instance of the linespec parser. */
278 /* Lexer internal data */
281 /* Save head of input stream. */
282 const char *saved_arg
;
284 /* Head of the input stream. */
286 #define PARSER_STREAM(P) ((P)->lexer.stream)
288 /* The current token. */
289 linespec_token current
;
292 /* Is the entire linespec quote-enclosed? */
293 int is_quote_enclosed
;
295 /* The state of the parse. */
296 struct linespec_state state
;
297 #define PARSER_STATE(PPTR) (&(PPTR)->state)
299 /* The result of the parse. */
300 struct linespec result
;
301 #define PARSER_RESULT(PPTR) (&(PPTR)->result)
303 typedef struct ls_parser linespec_parser
;
305 /* Prototypes for local functions. */
307 static void iterate_over_file_blocks (struct symtab
*symtab
,
308 const char *name
, domain_enum domain
,
309 symbol_found_callback_ftype
*callback
,
312 static void initialize_defaults (struct symtab
**default_symtab
,
315 static CORE_ADDR
linespec_expression_to_pc (const char **exp_ptr
);
317 static struct symtabs_and_lines
decode_objc (struct linespec_state
*self
,
321 static VEC (symtab_ptr
) *symtabs_from_filename (const char *);
323 static VEC (symbolp
) *find_label_symbols (struct linespec_state
*self
,
324 VEC (symbolp
) *function_symbols
,
325 VEC (symbolp
) **label_funcs_ret
,
328 static void find_linespec_symbols (struct linespec_state
*self
,
329 VEC (symtab_ptr
) *file_symtabs
,
331 VEC (symbolp
) **symbols
,
332 VEC (bound_minimal_symbol_d
) **minsyms
);
334 static struct line_offset
335 linespec_parse_variable (struct linespec_state
*self
,
336 const char *variable
);
338 static int symbol_to_sal (struct symtab_and_line
*result
,
339 int funfirstline
, struct symbol
*sym
);
341 static void add_matching_symbols_to_info (const char *name
,
342 struct collect_info
*info
,
343 struct program_space
*pspace
);
345 static void add_all_symbol_names_from_pspace (struct collect_info
*info
,
346 struct program_space
*pspace
,
347 VEC (const_char_ptr
) *names
);
349 static VEC (symtab_ptr
) *collect_symtabs_from_filename (const char *file
);
351 static void decode_digits_ordinary (struct linespec_state
*self
,
354 struct symtabs_and_lines
*sals
,
355 struct linetable_entry
**best_entry
);
357 static void decode_digits_list_mode (struct linespec_state
*self
,
359 struct symtabs_and_lines
*values
,
360 struct symtab_and_line val
);
362 static void minsym_found (struct linespec_state
*self
, struct objfile
*objfile
,
363 struct minimal_symbol
*msymbol
,
364 struct symtabs_and_lines
*result
);
366 static int compare_symbols (const void *a
, const void *b
);
368 static int compare_msymbols (const void *a
, const void *b
);
370 static const char *find_toplevel_char (const char *s
, char c
);
372 /* Permitted quote characters for the parser. This is different from the
373 completer's quote characters to allow backward compatibility with the
375 static const char *const linespec_quote_characters
= "\"\'";
377 /* Lexer functions. */
379 /* Lex a number from the input in PARSER. This only supports
382 Return true if input is decimal numbers. Return false if not. */
385 linespec_lexer_lex_number (linespec_parser
*parser
, linespec_token
*tokenp
)
387 tokenp
->type
= LSTOKEN_NUMBER
;
388 LS_TOKEN_STOKEN (*tokenp
).length
= 0;
389 LS_TOKEN_STOKEN (*tokenp
).ptr
= PARSER_STREAM (parser
);
391 /* Keep any sign at the start of the stream. */
392 if (*PARSER_STREAM (parser
) == '+' || *PARSER_STREAM (parser
) == '-')
394 ++LS_TOKEN_STOKEN (*tokenp
).length
;
395 ++(PARSER_STREAM (parser
));
398 while (isdigit (*PARSER_STREAM (parser
)))
400 ++LS_TOKEN_STOKEN (*tokenp
).length
;
401 ++(PARSER_STREAM (parser
));
404 /* If the next character in the input buffer is not a space, comma,
405 quote, or colon, this input does not represent a number. */
406 if (*PARSER_STREAM (parser
) != '\0'
407 && !isspace (*PARSER_STREAM (parser
)) && *PARSER_STREAM (parser
) != ','
408 && *PARSER_STREAM (parser
) != ':'
409 && !strchr (linespec_quote_characters
, *PARSER_STREAM (parser
)))
411 PARSER_STREAM (parser
) = LS_TOKEN_STOKEN (*tokenp
).ptr
;
418 /* See linespec.h. */
421 linespec_lexer_lex_keyword (const char *p
)
427 for (i
= 0; i
< ARRAY_SIZE (linespec_keywords
); ++i
)
429 int len
= strlen (linespec_keywords
[i
]);
431 /* If P begins with one of the keywords and the next
432 character is whitespace, we may have found a keyword.
433 It is only a keyword if it is not followed by another
435 if (strncmp (p
, linespec_keywords
[i
], len
) == 0
440 /* Special case: "if" ALWAYS stops the lexer, since it
441 is not possible to predict what is going to appear in
442 the condition, which can only be parsed after SaLs have
444 if (i
!= IF_KEYWORD_INDEX
)
447 p
= skip_spaces_const (p
);
448 for (j
= 0; j
< ARRAY_SIZE (linespec_keywords
); ++j
)
450 int nextlen
= strlen (linespec_keywords
[j
]);
452 if (strncmp (p
, linespec_keywords
[j
], nextlen
) == 0
453 && isspace (p
[nextlen
]))
458 return linespec_keywords
[i
];
466 /* Does STRING represent an Ada operator? If so, return the length
467 of the decoded operator name. If not, return 0. */
470 is_ada_operator (const char *string
)
472 const struct ada_opname_map
*mapping
;
474 for (mapping
= ada_opname_table
;
475 mapping
->encoded
!= NULL
476 && !startswith (string
, mapping
->decoded
); ++mapping
)
479 return mapping
->decoded
== NULL
? 0 : strlen (mapping
->decoded
);
482 /* Find QUOTE_CHAR in STRING, accounting for the ':' terminal. Return
483 the location of QUOTE_CHAR, or NULL if not found. */
486 skip_quote_char (const char *string
, char quote_char
)
488 const char *p
, *last
;
490 p
= last
= find_toplevel_char (string
, quote_char
);
491 while (p
&& *p
!= '\0' && *p
!= ':')
493 p
= find_toplevel_char (p
, quote_char
);
501 /* Make a writable copy of the string given in TOKEN, trimming
502 any trailing whitespace. */
505 copy_token_string (linespec_token token
)
509 if (token
.type
== LSTOKEN_KEYWORD
)
510 return xstrdup (LS_TOKEN_KEYWORD (token
));
512 str
= savestring (LS_TOKEN_STOKEN (token
).ptr
,
513 LS_TOKEN_STOKEN (token
).length
);
514 s
= remove_trailing_whitespace (str
, str
+ LS_TOKEN_STOKEN (token
).length
);
520 /* Does P represent the end of a quote-enclosed linespec? */
523 is_closing_quote_enclosed (const char *p
)
525 if (strchr (linespec_quote_characters
, *p
))
527 p
= skip_spaces ((char *) p
);
528 return (*p
== '\0' || linespec_lexer_lex_keyword (p
));
531 /* Find the end of the parameter list that starts with *INPUT.
532 This helper function assists with lexing string segments
533 which might contain valid (non-terminating) commas. */
536 find_parameter_list_end (const char *input
)
538 char end_char
, start_char
;
543 if (start_char
== '(')
545 else if (start_char
== '<')
554 if (*p
== start_char
)
556 else if (*p
== end_char
)
571 /* Lex a string from the input in PARSER. */
573 static linespec_token
574 linespec_lexer_lex_string (linespec_parser
*parser
)
576 linespec_token token
;
577 const char *start
= PARSER_STREAM (parser
);
579 token
.type
= LSTOKEN_STRING
;
581 /* If the input stream starts with a quote character, skip to the next
582 quote character, regardless of the content. */
583 if (strchr (linespec_quote_characters
, *PARSER_STREAM (parser
)))
586 char quote_char
= *PARSER_STREAM (parser
);
588 /* Special case: Ada operators. */
589 if (PARSER_STATE (parser
)->language
->la_language
== language_ada
590 && quote_char
== '\"')
592 int len
= is_ada_operator (PARSER_STREAM (parser
));
596 /* The input is an Ada operator. Return the quoted string
598 LS_TOKEN_STOKEN (token
).ptr
= PARSER_STREAM (parser
);
599 LS_TOKEN_STOKEN (token
).length
= len
;
600 PARSER_STREAM (parser
) += len
;
604 /* The input does not represent an Ada operator -- fall through
605 to normal quoted string handling. */
608 /* Skip past the beginning quote. */
609 ++(PARSER_STREAM (parser
));
611 /* Mark the start of the string. */
612 LS_TOKEN_STOKEN (token
).ptr
= PARSER_STREAM (parser
);
614 /* Skip to the ending quote. */
615 end
= skip_quote_char (PARSER_STREAM (parser
), quote_char
);
617 /* Error if the input did not terminate properly. */
619 error (_("unmatched quote"));
621 /* Skip over the ending quote and mark the length of the string. */
622 PARSER_STREAM (parser
) = (char *) ++end
;
623 LS_TOKEN_STOKEN (token
).length
= PARSER_STREAM (parser
) - 2 - start
;
629 /* Otherwise, only identifier characters are permitted.
630 Spaces are the exception. In general, we keep spaces,
631 but only if the next characters in the input do not resolve
632 to one of the keywords.
634 This allows users to forgo quoting CV-qualifiers, template arguments,
635 and similar common language constructs. */
639 if (isspace (*PARSER_STREAM (parser
)))
641 p
= skip_spaces_const (PARSER_STREAM (parser
));
642 /* When we get here we know we've found something followed by
643 a space (we skip over parens and templates below).
644 So if we find a keyword now, we know it is a keyword and not,
645 say, a function name. */
646 if (linespec_lexer_lex_keyword (p
) != NULL
)
648 LS_TOKEN_STOKEN (token
).ptr
= start
;
649 LS_TOKEN_STOKEN (token
).length
650 = PARSER_STREAM (parser
) - start
;
654 /* Advance past the whitespace. */
655 PARSER_STREAM (parser
) = p
;
658 /* If the next character is EOI or (single) ':', the
659 string is complete; return the token. */
660 if (*PARSER_STREAM (parser
) == 0)
662 LS_TOKEN_STOKEN (token
).ptr
= start
;
663 LS_TOKEN_STOKEN (token
).length
= PARSER_STREAM (parser
) - start
;
666 else if (PARSER_STREAM (parser
)[0] == ':')
668 /* Do not tokenize the C++ scope operator. */
669 if (PARSER_STREAM (parser
)[1] == ':')
670 ++(PARSER_STREAM (parser
));
672 /* Do not tokenify if the input length so far is one
673 (i.e, a single-letter drive name) and the next character
674 is a directory separator. This allows Windows-style
675 paths to be recognized as filenames without quoting it. */
676 else if ((PARSER_STREAM (parser
) - start
) != 1
677 || !IS_DIR_SEPARATOR (PARSER_STREAM (parser
)[1]))
679 LS_TOKEN_STOKEN (token
).ptr
= start
;
680 LS_TOKEN_STOKEN (token
).length
681 = PARSER_STREAM (parser
) - start
;
685 /* Special case: permit quote-enclosed linespecs. */
686 else if (parser
->is_quote_enclosed
687 && strchr (linespec_quote_characters
,
688 *PARSER_STREAM (parser
))
689 && is_closing_quote_enclosed (PARSER_STREAM (parser
)))
691 LS_TOKEN_STOKEN (token
).ptr
= start
;
692 LS_TOKEN_STOKEN (token
).length
= PARSER_STREAM (parser
) - start
;
695 /* Because commas may terminate a linespec and appear in
696 the middle of valid string input, special cases for
697 '<' and '(' are necessary. */
698 else if (*PARSER_STREAM (parser
) == '<'
699 || *PARSER_STREAM (parser
) == '(')
703 p
= find_parameter_list_end (PARSER_STREAM (parser
));
706 PARSER_STREAM (parser
) = p
;
710 /* Commas are terminators, but not if they are part of an
712 else if (*PARSER_STREAM (parser
) == ',')
714 if ((PARSER_STATE (parser
)->language
->la_language
716 && (PARSER_STREAM (parser
) - start
) > 8
717 /* strlen ("operator") */)
719 char *p
= strstr (start
, "operator");
721 if (p
!= NULL
&& is_operator_name (p
))
723 /* This is an operator name. Keep going. */
724 ++(PARSER_STREAM (parser
));
729 /* Comma terminates the string. */
730 LS_TOKEN_STOKEN (token
).ptr
= start
;
731 LS_TOKEN_STOKEN (token
).length
= PARSER_STREAM (parser
) - start
;
735 /* Advance the stream. */
736 ++(PARSER_STREAM (parser
));
743 /* Lex a single linespec token from PARSER. */
745 static linespec_token
746 linespec_lexer_lex_one (linespec_parser
*parser
)
750 if (parser
->lexer
.current
.type
== LSTOKEN_CONSUMED
)
752 /* Skip any whitespace. */
753 PARSER_STREAM (parser
) = skip_spaces_const (PARSER_STREAM (parser
));
755 /* Check for a keyword, they end the linespec. */
756 keyword
= linespec_lexer_lex_keyword (PARSER_STREAM (parser
));
759 parser
->lexer
.current
.type
= LSTOKEN_KEYWORD
;
760 LS_TOKEN_KEYWORD (parser
->lexer
.current
) = keyword
;
761 /* We do not advance the stream here intentionally:
762 we would like lexing to stop when a keyword is seen.
764 PARSER_STREAM (parser) += strlen (keyword); */
766 return parser
->lexer
.current
;
769 /* Handle other tokens. */
770 switch (*PARSER_STREAM (parser
))
773 parser
->lexer
.current
.type
= LSTOKEN_EOI
;
777 case '0': case '1': case '2': case '3': case '4':
778 case '5': case '6': case '7': case '8': case '9':
779 if (!linespec_lexer_lex_number (parser
, &(parser
->lexer
.current
)))
780 parser
->lexer
.current
= linespec_lexer_lex_string (parser
);
784 /* If we have a scope operator, lex the input as a string.
785 Otherwise, return LSTOKEN_COLON. */
786 if (PARSER_STREAM (parser
)[1] == ':')
787 parser
->lexer
.current
= linespec_lexer_lex_string (parser
);
790 parser
->lexer
.current
.type
= LSTOKEN_COLON
;
791 ++(PARSER_STREAM (parser
));
795 case '\'': case '\"':
796 /* Special case: permit quote-enclosed linespecs. */
797 if (parser
->is_quote_enclosed
798 && is_closing_quote_enclosed (PARSER_STREAM (parser
)))
800 ++(PARSER_STREAM (parser
));
801 parser
->lexer
.current
.type
= LSTOKEN_EOI
;
804 parser
->lexer
.current
= linespec_lexer_lex_string (parser
);
808 parser
->lexer
.current
.type
= LSTOKEN_COMMA
;
809 LS_TOKEN_STOKEN (parser
->lexer
.current
).ptr
810 = PARSER_STREAM (parser
);
811 LS_TOKEN_STOKEN (parser
->lexer
.current
).length
= 1;
812 ++(PARSER_STREAM (parser
));
816 /* If the input is not a number, it must be a string.
817 [Keywords were already considered above.] */
818 parser
->lexer
.current
= linespec_lexer_lex_string (parser
);
823 return parser
->lexer
.current
;
826 /* Consume the current token and return the next token in PARSER's
829 static linespec_token
830 linespec_lexer_consume_token (linespec_parser
*parser
)
832 parser
->lexer
.current
.type
= LSTOKEN_CONSUMED
;
833 return linespec_lexer_lex_one (parser
);
836 /* Return the next token without consuming the current token. */
838 static linespec_token
839 linespec_lexer_peek_token (linespec_parser
*parser
)
842 const char *saved_stream
= PARSER_STREAM (parser
);
843 linespec_token saved_token
= parser
->lexer
.current
;
845 next
= linespec_lexer_consume_token (parser
);
846 PARSER_STREAM (parser
) = saved_stream
;
847 parser
->lexer
.current
= saved_token
;
851 /* Helper functions. */
853 /* Add SAL to SALS. */
856 add_sal_to_sals_basic (struct symtabs_and_lines
*sals
,
857 struct symtab_and_line
*sal
)
860 sals
->sals
= xrealloc (sals
->sals
, sals
->nelts
* sizeof (sals
->sals
[0]));
861 sals
->sals
[sals
->nelts
- 1] = *sal
;
864 /* Add SAL to SALS, and also update SELF->CANONICAL_NAMES to reflect
865 the new sal, if needed. If not NULL, SYMNAME is the name of the
866 symbol to use when constructing the new canonical name.
868 If LITERAL_CANONICAL is non-zero, SYMNAME will be used as the
869 canonical name for the SAL. */
872 add_sal_to_sals (struct linespec_state
*self
,
873 struct symtabs_and_lines
*sals
,
874 struct symtab_and_line
*sal
,
875 const char *symname
, int literal_canonical
)
877 add_sal_to_sals_basic (sals
, sal
);
881 struct linespec_canonical_name
*canonical
;
883 self
->canonical_names
= xrealloc (self
->canonical_names
,
885 * sizeof (*self
->canonical_names
)));
886 canonical
= &self
->canonical_names
[sals
->nelts
- 1];
887 if (!literal_canonical
&& sal
->symtab
)
889 const char *fullname
= symtab_to_fullname (sal
->symtab
);
891 /* Note that the filter doesn't have to be a valid linespec
892 input. We only apply the ":LINE" treatment to Ada for
894 if (symname
!= NULL
&& sal
->line
!= 0
895 && self
->language
->la_language
== language_ada
)
896 canonical
->suffix
= xstrprintf ("%s:%d", symname
, sal
->line
);
897 else if (symname
!= NULL
)
898 canonical
->suffix
= xstrdup (symname
);
900 canonical
->suffix
= xstrprintf ("%d", sal
->line
);
901 canonical
->symtab
= sal
->symtab
;
906 canonical
->suffix
= xstrdup (symname
);
908 canonical
->suffix
= xstrdup ("<unknown>");
909 canonical
->symtab
= NULL
;
914 /* A hash function for address_entry. */
917 hash_address_entry (const void *p
)
919 const struct address_entry
*aep
= p
;
922 hash
= iterative_hash_object (aep
->pspace
, 0);
923 return iterative_hash_object (aep
->addr
, hash
);
926 /* An equality function for address_entry. */
929 eq_address_entry (const void *a
, const void *b
)
931 const struct address_entry
*aea
= a
;
932 const struct address_entry
*aeb
= b
;
934 return aea
->pspace
== aeb
->pspace
&& aea
->addr
== aeb
->addr
;
937 /* Check whether the address, represented by PSPACE and ADDR, is
938 already in the set. If so, return 0. Otherwise, add it and return
942 maybe_add_address (htab_t set
, struct program_space
*pspace
, CORE_ADDR addr
)
944 struct address_entry e
, *p
;
949 slot
= htab_find_slot (set
, &e
, INSERT
);
953 p
= XNEW (struct address_entry
);
954 memcpy (p
, &e
, sizeof (struct address_entry
));
960 /* A callback function and the additional data to call it with. */
962 struct symbol_and_data_callback
964 /* The callback to use. */
965 symbol_found_callback_ftype
*callback
;
967 /* Data to be passed to the callback. */
971 /* A helper for iterate_over_all_matching_symtabs that is used to
972 restrict calls to another callback to symbols representing inline
976 iterate_inline_only (struct symbol
*sym
, void *d
)
978 if (SYMBOL_INLINED (sym
))
980 struct symbol_and_data_callback
*cad
= d
;
982 return cad
->callback (sym
, cad
->data
);
984 return 1; /* Continue iterating. */
987 /* Some data for the expand_symtabs_matching callback. */
989 struct symbol_matcher_data
991 /* The lookup name against which symbol name should be compared. */
992 const char *lookup_name
;
994 /* The routine to be used for comparison. */
995 symbol_name_cmp_ftype symbol_name_cmp
;
998 /* A helper for iterate_over_all_matching_symtabs that is passed as a
999 callback to the expand_symtabs_matching method. */
1002 iterate_name_matcher (const char *name
, void *d
)
1004 const struct symbol_matcher_data
*data
= d
;
1006 if (data
->symbol_name_cmp (name
, data
->lookup_name
) == 0)
1007 return 1; /* Expand this symbol's symbol table. */
1008 return 0; /* Skip this symbol. */
1011 /* A helper that walks over all matching symtabs in all objfiles and
1012 calls CALLBACK for each symbol matching NAME. If SEARCH_PSPACE is
1013 not NULL, then the search is restricted to just that program
1014 space. If INCLUDE_INLINE is nonzero then symbols representing
1015 inlined instances of functions will be included in the result. */
1018 iterate_over_all_matching_symtabs (struct linespec_state
*state
,
1020 const domain_enum domain
,
1021 symbol_found_callback_ftype
*callback
,
1023 struct program_space
*search_pspace
,
1026 struct objfile
*objfile
;
1027 struct program_space
*pspace
;
1028 struct symbol_matcher_data matcher_data
;
1030 matcher_data
.lookup_name
= name
;
1031 matcher_data
.symbol_name_cmp
=
1032 state
->language
->la_get_symbol_name_cmp
!= NULL
1033 ? state
->language
->la_get_symbol_name_cmp (name
)
1036 ALL_PSPACES (pspace
)
1038 if (search_pspace
!= NULL
&& search_pspace
!= pspace
)
1040 if (pspace
->executing_startup
)
1043 set_current_program_space (pspace
);
1045 ALL_OBJFILES (objfile
)
1047 struct compunit_symtab
*cu
;
1050 objfile
->sf
->qf
->expand_symtabs_matching (objfile
, NULL
,
1051 iterate_name_matcher
,
1055 ALL_OBJFILE_COMPUNITS (objfile
, cu
)
1057 struct symtab
*symtab
= COMPUNIT_FILETABS (cu
);
1059 iterate_over_file_blocks (symtab
, name
, domain
, callback
, data
);
1063 struct symbol_and_data_callback cad
= { callback
, data
};
1064 struct block
*block
;
1067 for (i
= FIRST_LOCAL_BLOCK
;
1068 i
< BLOCKVECTOR_NBLOCKS (SYMTAB_BLOCKVECTOR (symtab
));
1071 block
= BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab
), i
);
1072 state
->language
->la_iterate_over_symbols
1073 (block
, name
, domain
, iterate_inline_only
, &cad
);
1081 /* Returns the block to be used for symbol searches from
1082 the current location. */
1084 static const struct block
*
1085 get_current_search_block (void)
1087 const struct block
*block
;
1088 enum language save_language
;
1090 /* get_selected_block can change the current language when there is
1091 no selected frame yet. */
1092 save_language
= current_language
->la_language
;
1093 block
= get_selected_block (0);
1094 set_language (save_language
);
1099 /* Iterate over static and global blocks. */
1102 iterate_over_file_blocks (struct symtab
*symtab
,
1103 const char *name
, domain_enum domain
,
1104 symbol_found_callback_ftype
*callback
, void *data
)
1106 struct block
*block
;
1108 for (block
= BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab
), STATIC_BLOCK
);
1110 block
= BLOCK_SUPERBLOCK (block
))
1111 LA_ITERATE_OVER_SYMBOLS (block
, name
, domain
, callback
, data
);
1114 /* A helper for find_method. This finds all methods in type T which
1115 match NAME. It adds matching symbol names to RESULT_NAMES, and
1116 adds T's direct superclasses to SUPERCLASSES. */
1119 find_methods (struct type
*t
, const char *name
,
1120 VEC (const_char_ptr
) **result_names
,
1121 VEC (typep
) **superclasses
)
1124 const char *class_name
= type_name_no_tag (t
);
1126 /* Ignore this class if it doesn't have a name. This is ugly, but
1127 unless we figure out how to get the physname without the name of
1128 the class, then the loop can't do any good. */
1133 t
= check_typedef (t
);
1135 /* Loop over each method name. At this level, all overloads of a name
1136 are counted as a single name. There is an inner loop which loops over
1139 for (method_counter
= TYPE_NFN_FIELDS (t
) - 1;
1140 method_counter
>= 0;
1143 const char *method_name
= TYPE_FN_FIELDLIST_NAME (t
, method_counter
);
1144 char dem_opname
[64];
1146 if (startswith (method_name
, "__") ||
1147 startswith (method_name
, "op") ||
1148 startswith (method_name
, "type"))
1150 if (cplus_demangle_opname (method_name
, dem_opname
, DMGL_ANSI
))
1151 method_name
= dem_opname
;
1152 else if (cplus_demangle_opname (method_name
, dem_opname
, 0))
1153 method_name
= dem_opname
;
1156 if (strcmp_iw (method_name
, name
) == 0)
1160 for (field_counter
= (TYPE_FN_FIELDLIST_LENGTH (t
, method_counter
)
1166 const char *phys_name
;
1168 f
= TYPE_FN_FIELDLIST1 (t
, method_counter
);
1169 if (TYPE_FN_FIELD_STUB (f
, field_counter
))
1171 phys_name
= TYPE_FN_FIELD_PHYSNAME (f
, field_counter
);
1172 VEC_safe_push (const_char_ptr
, *result_names
, phys_name
);
1178 for (ibase
= 0; ibase
< TYPE_N_BASECLASSES (t
); ibase
++)
1179 VEC_safe_push (typep
, *superclasses
, TYPE_BASECLASS (t
, ibase
));
1182 /* Find an instance of the character C in the string S that is outside
1183 of all parenthesis pairs, single-quoted strings, and double-quoted
1184 strings. Also, ignore the char within a template name, like a ','
1185 within foo<int, int>. */
1188 find_toplevel_char (const char *s
, char c
)
1190 int quoted
= 0; /* zero if we're not in quotes;
1191 '"' if we're in a double-quoted string;
1192 '\'' if we're in a single-quoted string. */
1193 int depth
= 0; /* Number of unclosed parens we've seen. */
1196 for (scan
= s
; *scan
; scan
++)
1200 if (*scan
== quoted
)
1202 else if (*scan
== '\\' && *(scan
+ 1))
1205 else if (*scan
== c
&& ! quoted
&& depth
== 0)
1207 else if (*scan
== '"' || *scan
== '\'')
1209 else if (*scan
== '(' || *scan
== '<')
1211 else if ((*scan
== ')' || *scan
== '>') && depth
> 0)
1218 /* The string equivalent of find_toplevel_char. Returns a pointer
1219 to the location of NEEDLE in HAYSTACK, ignoring any occurrences
1220 inside "()" and "<>". Returns NULL if NEEDLE was not found. */
1223 find_toplevel_string (const char *haystack
, const char *needle
)
1225 const char *s
= haystack
;
1229 s
= find_toplevel_char (s
, *needle
);
1233 /* Found first char in HAYSTACK; check rest of string. */
1234 if (startswith (s
, needle
))
1237 /* Didn't find it; loop over HAYSTACK, looking for the next
1238 instance of the first character of NEEDLE. */
1242 while (s
!= NULL
&& *s
!= '\0');
1244 /* NEEDLE was not found in HAYSTACK. */
1248 /* Convert CANONICAL to its string representation using
1249 symtab_to_fullname for SYMTAB. The caller must xfree the result. */
1252 canonical_to_fullform (const struct linespec_canonical_name
*canonical
)
1254 if (canonical
->symtab
== NULL
)
1255 return xstrdup (canonical
->suffix
);
1257 return xstrprintf ("%s:%s", symtab_to_fullname (canonical
->symtab
),
1261 /* Given FILTERS, a list of canonical names, filter the sals in RESULT
1262 and store the result in SELF->CANONICAL. */
1265 filter_results (struct linespec_state
*self
,
1266 struct symtabs_and_lines
*result
,
1267 VEC (const_char_ptr
) *filters
)
1272 for (i
= 0; VEC_iterate (const_char_ptr
, filters
, i
, name
); ++i
)
1274 struct linespec_sals lsal
;
1277 memset (&lsal
, 0, sizeof (lsal
));
1279 for (j
= 0; j
< result
->nelts
; ++j
)
1281 const struct linespec_canonical_name
*canonical
;
1283 struct cleanup
*cleanup
;
1285 canonical
= &self
->canonical_names
[j
];
1286 fullform
= canonical_to_fullform (canonical
);
1287 cleanup
= make_cleanup (xfree
, fullform
);
1289 if (strcmp (name
, fullform
) == 0)
1290 add_sal_to_sals_basic (&lsal
.sals
, &result
->sals
[j
]);
1292 do_cleanups (cleanup
);
1295 if (lsal
.sals
.nelts
> 0)
1297 lsal
.canonical
= xstrdup (name
);
1298 VEC_safe_push (linespec_sals
, self
->canonical
->sals
, &lsal
);
1302 self
->canonical
->pre_expanded
= 0;
1305 /* Store RESULT into SELF->CANONICAL. */
1308 convert_results_to_lsals (struct linespec_state
*self
,
1309 struct symtabs_and_lines
*result
)
1311 struct linespec_sals lsal
;
1313 lsal
.canonical
= NULL
;
1314 lsal
.sals
= *result
;
1315 VEC_safe_push (linespec_sals
, self
->canonical
->sals
, &lsal
);
1318 /* A structure that contains two string representations of a struct
1319 linespec_canonical_name:
1320 - one where the the symtab's fullname is used;
1321 - one where the filename followed the "set filename-display"
1324 struct decode_line_2_item
1326 /* The form using symtab_to_fullname.
1327 It must be xfree'ed after use. */
1330 /* The form using symtab_to_filename_for_display.
1331 It must be xfree'ed after use. */
1334 /* Field is initialized to zero and it is set to one if the user
1335 requested breakpoint for this entry. */
1336 unsigned int selected
: 1;
1339 /* Helper for qsort to sort decode_line_2_item entries by DISPLAYFORM and
1340 secondarily by FULLFORM. */
1343 decode_line_2_compare_items (const void *ap
, const void *bp
)
1345 const struct decode_line_2_item
*a
= ap
;
1346 const struct decode_line_2_item
*b
= bp
;
1349 retval
= strcmp (a
->displayform
, b
->displayform
);
1353 return strcmp (a
->fullform
, b
->fullform
);
1356 /* Handle multiple results in RESULT depending on SELECT_MODE. This
1357 will either return normally, throw an exception on multiple
1358 results, or present a menu to the user. On return, the SALS vector
1359 in SELF->CANONICAL is set up properly. */
1362 decode_line_2 (struct linespec_state
*self
,
1363 struct symtabs_and_lines
*result
,
1364 const char *select_mode
)
1366 char *args
, *prompt
;
1368 struct cleanup
*old_chain
;
1369 VEC (const_char_ptr
) *filters
= NULL
;
1370 struct get_number_or_range_state state
;
1371 struct decode_line_2_item
*items
;
1374 gdb_assert (select_mode
!= multiple_symbols_all
);
1375 gdb_assert (self
->canonical
!= NULL
);
1376 gdb_assert (result
->nelts
>= 1);
1378 old_chain
= make_cleanup (VEC_cleanup (const_char_ptr
), &filters
);
1380 /* Prepare ITEMS array. */
1381 items_count
= result
->nelts
;
1382 items
= xmalloc (sizeof (*items
) * items_count
);
1383 make_cleanup (xfree
, items
);
1384 for (i
= 0; i
< items_count
; ++i
)
1386 const struct linespec_canonical_name
*canonical
;
1387 struct decode_line_2_item
*item
;
1389 canonical
= &self
->canonical_names
[i
];
1390 gdb_assert (canonical
->suffix
!= NULL
);
1393 item
->fullform
= canonical_to_fullform (canonical
);
1394 make_cleanup (xfree
, item
->fullform
);
1396 if (canonical
->symtab
== NULL
)
1397 item
->displayform
= canonical
->suffix
;
1400 const char *fn_for_display
;
1402 fn_for_display
= symtab_to_filename_for_display (canonical
->symtab
);
1403 item
->displayform
= xstrprintf ("%s:%s", fn_for_display
,
1405 make_cleanup (xfree
, item
->displayform
);
1411 /* Sort the list of method names. */
1412 qsort (items
, items_count
, sizeof (*items
), decode_line_2_compare_items
);
1414 /* Remove entries with the same FULLFORM. */
1415 if (items_count
>= 2)
1417 struct decode_line_2_item
*dst
, *src
;
1420 for (src
= &items
[1]; src
< &items
[items_count
]; src
++)
1421 if (strcmp (src
->fullform
, dst
->fullform
) != 0)
1423 items_count
= dst
+ 1 - items
;
1426 if (select_mode
== multiple_symbols_cancel
&& items_count
> 1)
1427 error (_("canceled because the command is ambiguous\n"
1428 "See set/show multiple-symbol."));
1430 if (select_mode
== multiple_symbols_all
|| items_count
== 1)
1432 do_cleanups (old_chain
);
1433 convert_results_to_lsals (self
, result
);
1437 printf_unfiltered (_("[0] cancel\n[1] all\n"));
1438 for (i
= 0; i
< items_count
; i
++)
1439 printf_unfiltered ("[%d] %s\n", i
+ 2, items
[i
].displayform
);
1441 prompt
= getenv ("PS2");
1446 args
= command_line_input (prompt
, 0, "overload-choice");
1448 if (args
== 0 || *args
== 0)
1449 error_no_arg (_("one or more choice numbers"));
1451 init_number_or_range (&state
, args
);
1452 while (!state
.finished
)
1456 num
= get_number_or_range (&state
);
1459 error (_("canceled"));
1462 /* We intentionally make this result in a single breakpoint,
1463 contrary to what older versions of gdb did. The
1464 rationale is that this lets a user get the
1465 multiple_symbols_all behavior even with the 'ask'
1466 setting; and he can get separate breakpoints by entering
1467 "2-57" at the query. */
1468 do_cleanups (old_chain
);
1469 convert_results_to_lsals (self
, result
);
1474 if (num
>= items_count
)
1475 printf_unfiltered (_("No choice number %d.\n"), num
);
1478 struct decode_line_2_item
*item
= &items
[num
];
1480 if (!item
->selected
)
1482 VEC_safe_push (const_char_ptr
, filters
, item
->fullform
);
1487 printf_unfiltered (_("duplicate request for %d ignored.\n"),
1493 filter_results (self
, result
, filters
);
1494 do_cleanups (old_chain
);
1499 /* The parser of linespec itself. */
1501 /* Throw an appropriate error when SYMBOL is not found (optionally in
1504 static void ATTRIBUTE_NORETURN
1505 symbol_not_found_error (const char *symbol
, const char *filename
)
1510 if (!have_full_symbols ()
1511 && !have_partial_symbols ()
1512 && !have_minimal_symbols ())
1513 throw_error (NOT_FOUND_ERROR
,
1514 _("No symbol table is loaded. Use the \"file\" command."));
1516 /* If SYMBOL starts with '$', the user attempted to either lookup
1517 a function/variable in his code starting with '$' or an internal
1518 variable of that name. Since we do not know which, be concise and
1519 explain both possibilities. */
1523 throw_error (NOT_FOUND_ERROR
,
1524 _("Undefined convenience variable or function \"%s\" "
1525 "not defined in \"%s\"."), symbol
, filename
);
1527 throw_error (NOT_FOUND_ERROR
,
1528 _("Undefined convenience variable or function \"%s\" "
1529 "not defined."), symbol
);
1534 throw_error (NOT_FOUND_ERROR
,
1535 _("Function \"%s\" not defined in \"%s\"."),
1538 throw_error (NOT_FOUND_ERROR
,
1539 _("Function \"%s\" not defined."), symbol
);
1543 /* Throw an appropriate error when an unexpected token is encountered
1546 static void ATTRIBUTE_NORETURN
1547 unexpected_linespec_error (linespec_parser
*parser
)
1549 linespec_token token
;
1550 static const char * token_type_strings
[]
1551 = {"keyword", "colon", "string", "number", "comma", "end of input"};
1553 /* Get the token that generated the error. */
1554 token
= linespec_lexer_lex_one (parser
);
1556 /* Finally, throw the error. */
1557 if (token
.type
== LSTOKEN_STRING
|| token
.type
== LSTOKEN_NUMBER
1558 || token
.type
== LSTOKEN_KEYWORD
)
1561 struct cleanup
*cleanup
;
1563 string
= copy_token_string (token
);
1564 cleanup
= make_cleanup (xfree
, string
);
1565 throw_error (GENERIC_ERROR
,
1566 _("malformed linespec error: unexpected %s, \"%s\""),
1567 token_type_strings
[token
.type
], string
);
1570 throw_error (GENERIC_ERROR
,
1571 _("malformed linespec error: unexpected %s"),
1572 token_type_strings
[token
.type
]);
1575 /* Parse and return a line offset in STRING. */
1577 static struct line_offset
1578 linespec_parse_line_offset (const char *string
)
1580 struct line_offset line_offset
= {0, LINE_OFFSET_NONE
};
1584 line_offset
.sign
= LINE_OFFSET_PLUS
;
1587 else if (*string
== '-')
1589 line_offset
.sign
= LINE_OFFSET_MINUS
;
1593 /* Right now, we only allow base 10 for offsets. */
1594 line_offset
.offset
= atoi (string
);
1598 /* Parse the basic_spec in PARSER's input. */
1601 linespec_parse_basic (linespec_parser
*parser
)
1604 linespec_token token
;
1605 VEC (symbolp
) *symbols
, *labels
;
1606 VEC (bound_minimal_symbol_d
) *minimal_symbols
;
1607 struct cleanup
*cleanup
;
1609 /* Get the next token. */
1610 token
= linespec_lexer_lex_one (parser
);
1612 /* If it is EOI or KEYWORD, issue an error. */
1613 if (token
.type
== LSTOKEN_KEYWORD
|| token
.type
== LSTOKEN_EOI
)
1614 unexpected_linespec_error (parser
);
1615 /* If it is a LSTOKEN_NUMBER, we have an offset. */
1616 else if (token
.type
== LSTOKEN_NUMBER
)
1618 /* Record the line offset and get the next token. */
1619 name
= copy_token_string (token
);
1620 cleanup
= make_cleanup (xfree
, name
);
1621 PARSER_RESULT (parser
)->line_offset
= linespec_parse_line_offset (name
);
1622 do_cleanups (cleanup
);
1624 /* Get the next token. */
1625 token
= linespec_lexer_consume_token (parser
);
1627 /* If the next token is a comma, stop parsing and return. */
1628 if (token
.type
== LSTOKEN_COMMA
)
1631 /* If the next token is anything but EOI or KEYWORD, issue
1633 if (token
.type
!= LSTOKEN_KEYWORD
&& token
.type
!= LSTOKEN_EOI
)
1634 unexpected_linespec_error (parser
);
1637 if (token
.type
== LSTOKEN_KEYWORD
|| token
.type
== LSTOKEN_EOI
)
1640 /* Next token must be LSTOKEN_STRING. */
1641 if (token
.type
!= LSTOKEN_STRING
)
1642 unexpected_linespec_error (parser
);
1644 /* The current token will contain the name of a function, method,
1646 name
= copy_token_string (token
);
1647 cleanup
= make_cleanup (xfree
, name
);
1649 /* Try looking it up as a function/method. */
1650 find_linespec_symbols (PARSER_STATE (parser
),
1651 PARSER_RESULT (parser
)->file_symtabs
, name
,
1652 &symbols
, &minimal_symbols
);
1654 if (symbols
!= NULL
|| minimal_symbols
!= NULL
)
1656 PARSER_RESULT (parser
)->function_symbols
= symbols
;
1657 PARSER_RESULT (parser
)->minimal_symbols
= minimal_symbols
;
1658 PARSER_RESULT (parser
)->function_name
= name
;
1660 discard_cleanups (cleanup
);
1664 /* NAME was not a function or a method. So it must be a label
1665 name or user specified variable like "break foo.c:$zippo". */
1666 labels
= find_label_symbols (PARSER_STATE (parser
), NULL
,
1670 PARSER_RESULT (parser
)->labels
.label_symbols
= labels
;
1671 PARSER_RESULT (parser
)->labels
.function_symbols
= symbols
;
1672 PARSER_RESULT (parser
)->label_name
= name
;
1674 discard_cleanups (cleanup
);
1676 else if (token
.type
== LSTOKEN_STRING
1677 && *LS_TOKEN_STOKEN (token
).ptr
== '$')
1679 /* User specified a convenience variable or history value. */
1680 PARSER_RESULT (parser
)->line_offset
1681 = linespec_parse_variable (PARSER_STATE (parser
), name
);
1683 if (PARSER_RESULT (parser
)->line_offset
.sign
== LINE_OFFSET_UNKNOWN
)
1685 /* The user-specified variable was not valid. Do not
1686 throw an error here. parse_linespec will do it for us. */
1687 PARSER_RESULT (parser
)->function_name
= name
;
1688 discard_cleanups (cleanup
);
1692 /* The convenience variable/history value parsed correctly.
1693 NAME is no longer needed. */
1694 do_cleanups (cleanup
);
1698 /* The name is also not a label. Abort parsing. Do not throw
1699 an error here. parse_linespec will do it for us. */
1701 /* Save a copy of the name we were trying to lookup. */
1702 PARSER_RESULT (parser
)->function_name
= name
;
1703 discard_cleanups (cleanup
);
1708 /* Get the next token. */
1709 token
= linespec_lexer_consume_token (parser
);
1711 if (token
.type
== LSTOKEN_COLON
)
1713 /* User specified a label or a lineno. */
1714 token
= linespec_lexer_consume_token (parser
);
1716 if (token
.type
== LSTOKEN_NUMBER
)
1718 /* User specified an offset. Record the line offset and
1719 get the next token. */
1720 name
= copy_token_string (token
);
1721 cleanup
= make_cleanup (xfree
, name
);
1722 PARSER_RESULT (parser
)->line_offset
1723 = linespec_parse_line_offset (name
);
1724 do_cleanups (cleanup
);
1726 /* Ge the next token. */
1727 token
= linespec_lexer_consume_token (parser
);
1729 else if (token
.type
== LSTOKEN_STRING
)
1731 /* Grab a copy of the label's name and look it up. */
1732 name
= copy_token_string (token
);
1733 cleanup
= make_cleanup (xfree
, name
);
1734 labels
= find_label_symbols (PARSER_STATE (parser
),
1735 PARSER_RESULT (parser
)->function_symbols
,
1740 PARSER_RESULT (parser
)->labels
.label_symbols
= labels
;
1741 PARSER_RESULT (parser
)->labels
.function_symbols
= symbols
;
1742 PARSER_RESULT (parser
)->label_name
= name
;
1744 discard_cleanups (cleanup
);
1748 /* We don't know what it was, but it isn't a label. */
1749 throw_error (NOT_FOUND_ERROR
,
1750 _("No label \"%s\" defined in function \"%s\"."),
1751 name
, PARSER_RESULT (parser
)->function_name
);
1754 /* Check for a line offset. */
1755 token
= linespec_lexer_consume_token (parser
);
1756 if (token
.type
== LSTOKEN_COLON
)
1758 /* Get the next token. */
1759 token
= linespec_lexer_consume_token (parser
);
1761 /* It must be a line offset. */
1762 if (token
.type
!= LSTOKEN_NUMBER
)
1763 unexpected_linespec_error (parser
);
1765 /* Record the lione offset and get the next token. */
1766 name
= copy_token_string (token
);
1767 cleanup
= make_cleanup (xfree
, name
);
1769 PARSER_RESULT (parser
)->line_offset
1770 = linespec_parse_line_offset (name
);
1771 do_cleanups (cleanup
);
1773 /* Get the next token. */
1774 token
= linespec_lexer_consume_token (parser
);
1779 /* Trailing ':' in the input. Issue an error. */
1780 unexpected_linespec_error (parser
);
1785 /* Canonicalize the linespec contained in LS. The result is saved into
1786 STATE->canonical. */
1789 canonicalize_linespec (struct linespec_state
*state
, const linespec_p ls
)
1793 /* If canonicalization was not requested, no need to do anything. */
1794 if (!state
->canonical
)
1797 /* Shortcut expressions, which can only appear by themselves. */
1798 if (ls
->expression
!= NULL
)
1800 tmp
= ASTRDUP (ls
->expression
);
1801 state
->canonical
->location
= new_linespec_location (&tmp
);
1805 struct ui_file
*buf
;
1807 struct cleanup
*cleanup
;
1809 buf
= mem_fileopen ();
1810 cleanup
= make_cleanup_ui_file_delete (buf
);
1812 if (ls
->source_filename
)
1814 fputs_unfiltered (ls
->source_filename
, buf
);
1818 if (ls
->function_name
)
1821 fputc_unfiltered (':', buf
);
1822 fputs_unfiltered (ls
->function_name
, buf
);
1829 fputc_unfiltered (':', buf
);
1831 if (ls
->function_name
== NULL
)
1835 /* No function was specified, so add the symbol name. */
1836 gdb_assert (ls
->labels
.function_symbols
!= NULL
1837 && (VEC_length (symbolp
, ls
->labels
.function_symbols
)
1839 s
= VEC_index (symbolp
, ls
->labels
.function_symbols
, 0);
1840 fputs_unfiltered (SYMBOL_NATURAL_NAME (s
), buf
);
1841 fputc_unfiltered (':', buf
);
1844 fputs_unfiltered (ls
->label_name
, buf
);
1846 state
->canonical
->special_display
= 1;
1849 if (ls
->line_offset
.sign
!= LINE_OFFSET_UNKNOWN
)
1852 fputc_unfiltered (':', buf
);
1853 fprintf_filtered (buf
, "%s%d",
1854 (ls
->line_offset
.sign
== LINE_OFFSET_NONE
? ""
1855 : (ls
->line_offset
.sign
1856 == LINE_OFFSET_PLUS
? "+" : "-")),
1857 ls
->line_offset
.offset
);
1860 tmp
= ui_file_xstrdup (buf
, NULL
);
1861 make_cleanup (xfree
, tmp
);
1862 state
->canonical
->location
= new_linespec_location (&tmp
);
1863 do_cleanups (cleanup
);
1867 /* Given a line offset in LS, construct the relevant SALs. */
1869 static struct symtabs_and_lines
1870 create_sals_line_offset (struct linespec_state
*self
,
1873 struct symtabs_and_lines values
;
1874 struct symtab_and_line val
;
1875 int use_default
= 0;
1881 /* This is where we need to make sure we have good defaults.
1882 We must guarantee that this section of code is never executed
1883 when we are called with just a function name, since
1884 set_default_source_symtab_and_line uses
1885 select_source_symtab that calls us with such an argument. */
1887 if (VEC_length (symtab_ptr
, ls
->file_symtabs
) == 1
1888 && VEC_index (symtab_ptr
, ls
->file_symtabs
, 0) == NULL
)
1890 const char *fullname
;
1892 set_current_program_space (self
->program_space
);
1894 /* Make sure we have at least a default source line. */
1895 set_default_source_symtab_and_line ();
1896 initialize_defaults (&self
->default_symtab
, &self
->default_line
);
1897 fullname
= symtab_to_fullname (self
->default_symtab
);
1898 VEC_pop (symtab_ptr
, ls
->file_symtabs
);
1899 VEC_free (symtab_ptr
, ls
->file_symtabs
);
1900 ls
->file_symtabs
= collect_symtabs_from_filename (fullname
);
1904 val
.line
= ls
->line_offset
.offset
;
1905 switch (ls
->line_offset
.sign
)
1907 case LINE_OFFSET_PLUS
:
1908 if (ls
->line_offset
.offset
== 0)
1911 val
.line
= self
->default_line
+ val
.line
;
1914 case LINE_OFFSET_MINUS
:
1915 if (ls
->line_offset
.offset
== 0)
1918 val
.line
= self
->default_line
- val
.line
;
1920 val
.line
= -val
.line
;
1923 case LINE_OFFSET_NONE
:
1924 break; /* No need to adjust val.line. */
1927 if (self
->list_mode
)
1928 decode_digits_list_mode (self
, ls
, &values
, val
);
1931 struct linetable_entry
*best_entry
= NULL
;
1933 const struct block
**blocks
;
1934 struct cleanup
*cleanup
;
1935 struct symtabs_and_lines intermediate_results
;
1938 intermediate_results
.sals
= NULL
;
1939 intermediate_results
.nelts
= 0;
1941 decode_digits_ordinary (self
, ls
, val
.line
, &intermediate_results
,
1943 if (intermediate_results
.nelts
== 0 && best_entry
!= NULL
)
1944 decode_digits_ordinary (self
, ls
, best_entry
->line
,
1945 &intermediate_results
, &best_entry
);
1947 cleanup
= make_cleanup (xfree
, intermediate_results
.sals
);
1949 /* For optimized code, the compiler can scatter one source line
1950 across disjoint ranges of PC values, even when no duplicate
1951 functions or inline functions are involved. For example,
1952 'for (;;)' inside a non-template, non-inline, and non-ctor-or-dtor
1953 function can result in two PC ranges. In this case, we don't
1954 want to set a breakpoint on the first PC of each range. To filter
1955 such cases, we use containing blocks -- for each PC found
1956 above, we see if there are other PCs that are in the same
1957 block. If yes, the other PCs are filtered out. */
1959 filter
= XNEWVEC (int, intermediate_results
.nelts
);
1960 make_cleanup (xfree
, filter
);
1961 blocks
= XNEWVEC (const struct block
*, intermediate_results
.nelts
);
1962 make_cleanup (xfree
, blocks
);
1964 for (i
= 0; i
< intermediate_results
.nelts
; ++i
)
1966 set_current_program_space (intermediate_results
.sals
[i
].pspace
);
1969 blocks
[i
] = block_for_pc_sect (intermediate_results
.sals
[i
].pc
,
1970 intermediate_results
.sals
[i
].section
);
1973 for (i
= 0; i
< intermediate_results
.nelts
; ++i
)
1975 if (blocks
[i
] != NULL
)
1976 for (j
= i
+ 1; j
< intermediate_results
.nelts
; ++j
)
1978 if (blocks
[j
] == blocks
[i
])
1986 for (i
= 0; i
< intermediate_results
.nelts
; ++i
)
1989 struct symbol
*sym
= (blocks
[i
]
1990 ? block_containing_function (blocks
[i
])
1993 if (self
->funfirstline
)
1994 skip_prologue_sal (&intermediate_results
.sals
[i
]);
1995 /* Make sure the line matches the request, not what was
1997 intermediate_results
.sals
[i
].line
= val
.line
;
1998 add_sal_to_sals (self
, &values
, &intermediate_results
.sals
[i
],
1999 sym
? SYMBOL_NATURAL_NAME (sym
) : NULL
, 0);
2002 do_cleanups (cleanup
);
2005 if (values
.nelts
== 0)
2007 if (ls
->source_filename
)
2008 throw_error (NOT_FOUND_ERROR
, _("No line %d in file \"%s\"."),
2009 val
.line
, ls
->source_filename
);
2011 throw_error (NOT_FOUND_ERROR
, _("No line %d in the current file."),
2018 /* Create and return SALs from the linespec LS. */
2020 static struct symtabs_and_lines
2021 convert_linespec_to_sals (struct linespec_state
*state
, linespec_p ls
)
2023 struct symtabs_and_lines sals
= {NULL
, 0};
2025 if (ls
->expression
!= NULL
)
2027 struct symtab_and_line sal
;
2029 /* We have an expression. No other attribute is allowed. */
2030 sal
= find_pc_line (ls
->expr_pc
, 0);
2031 sal
.pc
= ls
->expr_pc
;
2032 sal
.section
= find_pc_overlay (ls
->expr_pc
);
2033 sal
.explicit_pc
= 1;
2034 add_sal_to_sals (state
, &sals
, &sal
, ls
->expression
, 1);
2036 else if (ls
->labels
.label_symbols
!= NULL
)
2038 /* We have just a bunch of functions/methods or labels. */
2040 struct symtab_and_line sal
;
2043 for (i
= 0; VEC_iterate (symbolp
, ls
->labels
.label_symbols
, i
, sym
); ++i
)
2045 struct program_space
*pspace
= SYMTAB_PSPACE (symbol_symtab (sym
));
2047 if (symbol_to_sal (&sal
, state
->funfirstline
, sym
)
2048 && maybe_add_address (state
->addr_set
, pspace
, sal
.pc
))
2049 add_sal_to_sals (state
, &sals
, &sal
,
2050 SYMBOL_NATURAL_NAME (sym
), 0);
2053 else if (ls
->function_symbols
!= NULL
|| ls
->minimal_symbols
!= NULL
)
2055 /* We have just a bunch of functions and/or methods. */
2057 struct symtab_and_line sal
;
2059 bound_minimal_symbol_d
*elem
;
2060 struct program_space
*pspace
;
2062 if (ls
->function_symbols
!= NULL
)
2064 /* Sort symbols so that symbols with the same program space are next
2066 qsort (VEC_address (symbolp
, ls
->function_symbols
),
2067 VEC_length (symbolp
, ls
->function_symbols
),
2068 sizeof (symbolp
), compare_symbols
);
2070 for (i
= 0; VEC_iterate (symbolp
, ls
->function_symbols
, i
, sym
); ++i
)
2072 pspace
= SYMTAB_PSPACE (symbol_symtab (sym
));
2073 set_current_program_space (pspace
);
2074 if (symbol_to_sal (&sal
, state
->funfirstline
, sym
)
2075 && maybe_add_address (state
->addr_set
, pspace
, sal
.pc
))
2076 add_sal_to_sals (state
, &sals
, &sal
,
2077 SYMBOL_NATURAL_NAME (sym
), 0);
2081 if (ls
->minimal_symbols
!= NULL
)
2083 /* Sort minimal symbols by program space, too. */
2084 qsort (VEC_address (bound_minimal_symbol_d
, ls
->minimal_symbols
),
2085 VEC_length (bound_minimal_symbol_d
, ls
->minimal_symbols
),
2086 sizeof (bound_minimal_symbol_d
), compare_msymbols
);
2089 VEC_iterate (bound_minimal_symbol_d
, ls
->minimal_symbols
,
2093 pspace
= elem
->objfile
->pspace
;
2094 set_current_program_space (pspace
);
2095 minsym_found (state
, elem
->objfile
, elem
->minsym
, &sals
);
2099 else if (ls
->line_offset
.sign
!= LINE_OFFSET_UNKNOWN
)
2101 /* Only an offset was specified. */
2102 sals
= create_sals_line_offset (state
, ls
);
2104 /* Make sure we have a filename for canonicalization. */
2105 if (ls
->source_filename
== NULL
)
2107 const char *fullname
= symtab_to_fullname (state
->default_symtab
);
2109 /* It may be more appropriate to keep DEFAULT_SYMTAB in its symtab
2110 form so that displaying SOURCE_FILENAME can follow the current
2111 FILENAME_DISPLAY_STRING setting. But as it is used only rarely
2112 it has been kept for code simplicity only in absolute form. */
2113 ls
->source_filename
= xstrdup (fullname
);
2118 /* We haven't found any results... */
2122 canonicalize_linespec (state
, ls
);
2124 if (sals
.nelts
> 0 && state
->canonical
!= NULL
)
2125 state
->canonical
->pre_expanded
= 1;
2130 /* Parse a string that specifies a linespec.
2132 The basic grammar of linespecs:
2134 linespec -> expr_spec | var_spec | basic_spec
2135 expr_spec -> '*' STRING
2136 var_spec -> '$' (STRING | NUMBER)
2138 basic_spec -> file_offset_spec | function_spec | label_spec
2139 file_offset_spec -> opt_file_spec offset_spec
2140 function_spec -> opt_file_spec function_name_spec opt_label_spec
2141 label_spec -> label_name_spec
2143 opt_file_spec -> "" | file_name_spec ':'
2144 opt_label_spec -> "" | ':' label_name_spec
2146 file_name_spec -> STRING
2147 function_name_spec -> STRING
2148 label_name_spec -> STRING
2149 function_name_spec -> STRING
2150 offset_spec -> NUMBER
2154 This may all be followed by several keywords such as "if EXPR",
2157 A comma will terminate parsing.
2159 The function may be an undebuggable function found in minimal symbol table.
2161 If the argument FUNFIRSTLINE is nonzero, we want the first line
2162 of real code inside a function when a function is specified, and it is
2163 not OK to specify a variable or type to get its line number.
2165 DEFAULT_SYMTAB specifies the file to use if none is specified.
2166 It defaults to current_source_symtab.
2167 DEFAULT_LINE specifies the line number to use for relative
2168 line numbers (that start with signs). Defaults to current_source_line.
2169 If CANONICAL is non-NULL, store an array of strings containing the canonical
2170 line specs there if necessary. Currently overloaded member functions and
2171 line numbers or static functions without a filename yield a canonical
2172 line spec. The array and the line spec strings are allocated on the heap,
2173 it is the callers responsibility to free them.
2175 Note that it is possible to return zero for the symtab
2176 if no file is validly specified. Callers must check that.
2177 Also, the line number returned may be invalid. */
2179 /* Parse the linespec in ARG. */
2181 static struct symtabs_and_lines
2182 parse_linespec (linespec_parser
*parser
, const char *arg
)
2184 linespec_token token
;
2185 struct symtabs_and_lines values
;
2186 struct gdb_exception file_exception
= exception_none
;
2187 struct cleanup
*cleanup
;
2189 /* A special case to start. It has become quite popular for
2190 IDEs to work around bugs in the previous parser by quoting
2191 the entire linespec, so we attempt to deal with this nicely. */
2192 parser
->is_quote_enclosed
= 0;
2193 if (!is_ada_operator (arg
)
2194 && strchr (linespec_quote_characters
, *arg
) != NULL
)
2198 end
= skip_quote_char (arg
+ 1, *arg
);
2199 if (end
!= NULL
&& is_closing_quote_enclosed (end
))
2201 /* Here's the special case. Skip ARG past the initial
2204 parser
->is_quote_enclosed
= 1;
2208 parser
->lexer
.saved_arg
= arg
;
2209 parser
->lexer
.stream
= arg
;
2211 /* Initialize the default symtab and line offset. */
2212 initialize_defaults (&PARSER_STATE (parser
)->default_symtab
,
2213 &PARSER_STATE (parser
)->default_line
);
2215 /* Objective-C shortcut. */
2216 values
= decode_objc (PARSER_STATE (parser
), PARSER_RESULT (parser
), arg
);
2217 if (values
.sals
!= NULL
)
2220 /* Start parsing. */
2222 /* Get the first token. */
2223 token
= linespec_lexer_lex_one (parser
);
2225 /* It must be either LSTOKEN_STRING or LSTOKEN_NUMBER. */
2226 if (token
.type
== LSTOKEN_STRING
&& *LS_TOKEN_STOKEN (token
).ptr
== '*')
2231 /* User specified an expression, *EXPR. */
2232 copy
= expr
= copy_token_string (token
);
2233 cleanup
= make_cleanup (xfree
, expr
);
2234 PARSER_RESULT (parser
)->expr_pc
= linespec_expression_to_pc (©
);
2235 discard_cleanups (cleanup
);
2236 PARSER_RESULT (parser
)->expression
= expr
;
2238 /* This is a little hacky/tricky. If linespec_expression_to_pc
2239 did not evaluate the entire token, then we must find the
2240 string COPY inside the original token buffer. */
2243 PARSER_STREAM (parser
) = strstr (parser
->lexer
.saved_arg
, copy
);
2244 gdb_assert (PARSER_STREAM (parser
) != NULL
);
2247 /* Consume the token. */
2248 linespec_lexer_consume_token (parser
);
2250 goto convert_to_sals
;
2252 else if (token
.type
== LSTOKEN_STRING
&& *LS_TOKEN_STOKEN (token
).ptr
== '$')
2256 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2257 VEC_safe_push (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
, NULL
);
2259 /* User specified a convenience variable or history value. */
2260 var
= copy_token_string (token
);
2261 cleanup
= make_cleanup (xfree
, var
);
2262 PARSER_RESULT (parser
)->line_offset
2263 = linespec_parse_variable (PARSER_STATE (parser
), var
);
2264 do_cleanups (cleanup
);
2266 /* If a line_offset wasn't found (VAR is the name of a user
2267 variable/function), then skip to normal symbol processing. */
2268 if (PARSER_RESULT (parser
)->line_offset
.sign
!= LINE_OFFSET_UNKNOWN
)
2270 /* Consume this token. */
2271 linespec_lexer_consume_token (parser
);
2273 goto convert_to_sals
;
2276 else if (token
.type
!= LSTOKEN_STRING
&& token
.type
!= LSTOKEN_NUMBER
)
2277 unexpected_linespec_error (parser
);
2279 /* Shortcut: If the next token is not LSTOKEN_COLON, we know that
2280 this token cannot represent a filename. */
2281 token
= linespec_lexer_peek_token (parser
);
2283 if (token
.type
== LSTOKEN_COLON
)
2285 char *user_filename
;
2287 /* Get the current token again and extract the filename. */
2288 token
= linespec_lexer_lex_one (parser
);
2289 user_filename
= copy_token_string (token
);
2291 /* Check if the input is a filename. */
2294 PARSER_RESULT (parser
)->file_symtabs
2295 = symtabs_from_filename (user_filename
);
2297 CATCH (ex
, RETURN_MASK_ERROR
)
2299 file_exception
= ex
;
2303 if (file_exception
.reason
>= 0)
2305 /* Symtabs were found for the file. Record the filename. */
2306 PARSER_RESULT (parser
)->source_filename
= user_filename
;
2308 /* Get the next token. */
2309 token
= linespec_lexer_consume_token (parser
);
2311 /* This is LSTOKEN_COLON; consume it. */
2312 linespec_lexer_consume_token (parser
);
2316 /* No symtabs found -- discard user_filename. */
2317 xfree (user_filename
);
2319 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2320 VEC_safe_push (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
, NULL
);
2323 /* If the next token is not EOI, KEYWORD, or COMMA, issue an error. */
2324 else if (token
.type
!= LSTOKEN_EOI
&& token
.type
!= LSTOKEN_KEYWORD
2325 && token
.type
!= LSTOKEN_COMMA
)
2327 /* TOKEN is the _next_ token, not the one currently in the parser.
2328 Consuming the token will give the correct error message. */
2329 linespec_lexer_consume_token (parser
);
2330 unexpected_linespec_error (parser
);
2334 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2335 VEC_safe_push (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
, NULL
);
2338 /* Parse the rest of the linespec. */
2339 linespec_parse_basic (parser
);
2341 if (PARSER_RESULT (parser
)->function_symbols
== NULL
2342 && PARSER_RESULT (parser
)->labels
.label_symbols
== NULL
2343 && PARSER_RESULT (parser
)->line_offset
.sign
== LINE_OFFSET_UNKNOWN
2344 && PARSER_RESULT (parser
)->minimal_symbols
== NULL
)
2346 /* The linespec didn't parse. Re-throw the file exception if
2348 if (file_exception
.reason
< 0)
2349 throw_exception (file_exception
);
2351 /* Otherwise, the symbol is not found. */
2352 symbol_not_found_error (PARSER_RESULT (parser
)->function_name
,
2353 PARSER_RESULT (parser
)->source_filename
);
2358 /* Get the last token and record how much of the input was parsed,
2360 token
= linespec_lexer_lex_one (parser
);
2361 if (token
.type
!= LSTOKEN_EOI
&& token
.type
!= LSTOKEN_KEYWORD
)
2362 PARSER_STREAM (parser
) = LS_TOKEN_STOKEN (token
).ptr
;
2364 /* Convert the data in PARSER_RESULT to SALs. */
2365 values
= convert_linespec_to_sals (PARSER_STATE (parser
),
2366 PARSER_RESULT (parser
));
2372 /* A constructor for linespec_state. */
2375 linespec_state_constructor (struct linespec_state
*self
,
2376 int flags
, const struct language_defn
*language
,
2377 struct symtab
*default_symtab
,
2379 struct linespec_result
*canonical
)
2381 memset (self
, 0, sizeof (*self
));
2382 self
->language
= language
;
2383 self
->funfirstline
= (flags
& DECODE_LINE_FUNFIRSTLINE
) ? 1 : 0;
2384 self
->list_mode
= (flags
& DECODE_LINE_LIST_MODE
) ? 1 : 0;
2385 self
->default_symtab
= default_symtab
;
2386 self
->default_line
= default_line
;
2387 self
->canonical
= canonical
;
2388 self
->program_space
= current_program_space
;
2389 self
->addr_set
= htab_create_alloc (10, hash_address_entry
, eq_address_entry
,
2390 xfree
, xcalloc
, xfree
);
2393 /* Initialize a new linespec parser. */
2396 linespec_parser_new (linespec_parser
*parser
,
2397 int flags
, const struct language_defn
*language
,
2398 struct symtab
*default_symtab
,
2400 struct linespec_result
*canonical
)
2402 memset (parser
, 0, sizeof (linespec_parser
));
2403 parser
->lexer
.current
.type
= LSTOKEN_CONSUMED
;
2404 memset (PARSER_RESULT (parser
), 0, sizeof (struct linespec
));
2405 PARSER_RESULT (parser
)->line_offset
.sign
= LINE_OFFSET_UNKNOWN
;
2406 linespec_state_constructor (PARSER_STATE (parser
), flags
, language
,
2407 default_symtab
, default_line
, canonical
);
2410 /* A destructor for linespec_state. */
2413 linespec_state_destructor (struct linespec_state
*self
)
2415 htab_delete (self
->addr_set
);
2418 /* Delete a linespec parser. */
2421 linespec_parser_delete (void *arg
)
2423 linespec_parser
*parser
= (linespec_parser
*) arg
;
2425 xfree ((char *) PARSER_RESULT (parser
)->expression
);
2426 xfree ((char *) PARSER_RESULT (parser
)->source_filename
);
2427 xfree ((char *) PARSER_RESULT (parser
)->label_name
);
2428 xfree ((char *) PARSER_RESULT (parser
)->function_name
);
2430 if (PARSER_RESULT (parser
)->file_symtabs
!= NULL
)
2431 VEC_free (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
);
2433 if (PARSER_RESULT (parser
)->function_symbols
!= NULL
)
2434 VEC_free (symbolp
, PARSER_RESULT (parser
)->function_symbols
);
2436 if (PARSER_RESULT (parser
)->minimal_symbols
!= NULL
)
2437 VEC_free (bound_minimal_symbol_d
, PARSER_RESULT (parser
)->minimal_symbols
);
2439 if (PARSER_RESULT (parser
)->labels
.label_symbols
!= NULL
)
2440 VEC_free (symbolp
, PARSER_RESULT (parser
)->labels
.label_symbols
);
2442 if (PARSER_RESULT (parser
)->labels
.function_symbols
!= NULL
)
2443 VEC_free (symbolp
, PARSER_RESULT (parser
)->labels
.function_symbols
);
2445 linespec_state_destructor (PARSER_STATE (parser
));
2448 /* See description in linespec.h. */
2451 linespec_lex_to_end (char **stringp
)
2453 linespec_parser parser
;
2454 struct cleanup
*cleanup
;
2455 linespec_token token
;
2458 if (stringp
== NULL
|| *stringp
== NULL
)
2461 linespec_parser_new (&parser
, 0, current_language
, NULL
, 0, NULL
);
2462 cleanup
= make_cleanup (linespec_parser_delete
, &parser
);
2463 parser
.lexer
.saved_arg
= *stringp
;
2464 PARSER_STREAM (&parser
) = orig
= *stringp
;
2468 /* Stop before any comma tokens; we need it to keep it
2469 as the next token in the string. */
2470 token
= linespec_lexer_peek_token (&parser
);
2471 if (token
.type
== LSTOKEN_COMMA
)
2474 /* For addresses advance the parser stream past
2475 any parsed input and stop lexing. */
2476 if (token
.type
== LSTOKEN_STRING
2477 && *LS_TOKEN_STOKEN (token
).ptr
== '*')
2482 (void) linespec_expression_to_pc (&arg
);
2483 PARSER_STREAM (&parser
) = arg
;
2487 token
= linespec_lexer_consume_token (&parser
);
2489 while (token
.type
!= LSTOKEN_EOI
&& token
.type
!= LSTOKEN_KEYWORD
);
2491 *stringp
+= PARSER_STREAM (&parser
) - orig
;
2492 do_cleanups (cleanup
);
2495 /* A helper function for decode_line_full and decode_line_1 to
2496 turn LOCATION into symtabs_and_lines. */
2498 static struct symtabs_and_lines
2499 event_location_to_sals (linespec_parser
*parser
,
2500 const struct event_location
*location
)
2502 struct symtabs_and_lines result
= {NULL
, 0};
2504 switch (event_location_type (location
))
2506 case LINESPEC_LOCATION
:
2510 result
= parse_linespec (parser
, get_linespec_location (location
));
2512 CATCH (except
, RETURN_MASK_ERROR
)
2514 throw_exception (except
);
2521 gdb_assert_not_reached ("unhandled event location type");
2527 /* See linespec.h. */
2530 decode_line_full (const struct event_location
*location
, int flags
,
2531 struct symtab
*default_symtab
,
2532 int default_line
, struct linespec_result
*canonical
,
2533 const char *select_mode
,
2536 struct symtabs_and_lines result
;
2537 struct cleanup
*cleanups
;
2538 VEC (const_char_ptr
) *filters
= NULL
;
2539 linespec_parser parser
;
2540 struct linespec_state
*state
;
2542 gdb_assert (canonical
!= NULL
);
2543 /* The filter only makes sense for 'all'. */
2544 gdb_assert (filter
== NULL
|| select_mode
== multiple_symbols_all
);
2545 gdb_assert (select_mode
== NULL
2546 || select_mode
== multiple_symbols_all
2547 || select_mode
== multiple_symbols_ask
2548 || select_mode
== multiple_symbols_cancel
);
2549 gdb_assert ((flags
& DECODE_LINE_LIST_MODE
) == 0);
2551 linespec_parser_new (&parser
, flags
, current_language
, default_symtab
,
2552 default_line
, canonical
);
2553 cleanups
= make_cleanup (linespec_parser_delete
, &parser
);
2554 save_current_program_space ();
2556 result
= event_location_to_sals (&parser
, location
);
2557 state
= PARSER_STATE (&parser
);
2559 gdb_assert (result
.nelts
== 1 || canonical
->pre_expanded
);
2560 canonical
->pre_expanded
= 1;
2562 /* Arrange for allocated canonical names to be freed. */
2563 if (result
.nelts
> 0)
2567 make_cleanup (xfree
, state
->canonical_names
);
2568 for (i
= 0; i
< result
.nelts
; ++i
)
2570 gdb_assert (state
->canonical_names
[i
].suffix
!= NULL
);
2571 make_cleanup (xfree
, state
->canonical_names
[i
].suffix
);
2575 if (select_mode
== NULL
)
2577 if (ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ())))
2578 select_mode
= multiple_symbols_all
;
2580 select_mode
= multiple_symbols_select_mode ();
2583 if (select_mode
== multiple_symbols_all
)
2587 make_cleanup (VEC_cleanup (const_char_ptr
), &filters
);
2588 VEC_safe_push (const_char_ptr
, filters
, filter
);
2589 filter_results (state
, &result
, filters
);
2592 convert_results_to_lsals (state
, &result
);
2595 decode_line_2 (state
, &result
, select_mode
);
2597 do_cleanups (cleanups
);
2600 /* See linespec.h. */
2602 struct symtabs_and_lines
2603 decode_line_1 (const struct event_location
*location
, int flags
,
2604 struct symtab
*default_symtab
,
2607 struct symtabs_and_lines result
;
2608 linespec_parser parser
;
2609 struct cleanup
*cleanups
;
2611 linespec_parser_new (&parser
, flags
, current_language
, default_symtab
,
2612 default_line
, NULL
);
2613 cleanups
= make_cleanup (linespec_parser_delete
, &parser
);
2614 save_current_program_space ();
2616 result
= event_location_to_sals (&parser
, location
);
2618 do_cleanups (cleanups
);
2622 /* See linespec.h. */
2624 struct symtabs_and_lines
2625 decode_line_with_current_source (char *string
, int flags
)
2627 struct symtabs_and_lines sals
;
2628 struct symtab_and_line cursal
;
2629 struct event_location
*location
;
2630 struct cleanup
*cleanup
;
2633 error (_("Empty line specification."));
2635 /* We use whatever is set as the current source line. We do not try
2636 and get a default source symtab+line or it will recursively call us! */
2637 cursal
= get_current_source_symtab_and_line ();
2639 location
= string_to_event_location (&string
, current_language
);
2640 cleanup
= make_cleanup_delete_event_location (location
);
2641 sals
= decode_line_1 (location
, flags
,
2642 cursal
.symtab
, cursal
.line
);
2645 error (_("Junk at end of line specification: %s"), string
);
2647 do_cleanups (cleanup
);
2651 /* See linespec.h. */
2653 struct symtabs_and_lines
2654 decode_line_with_last_displayed (char *string
, int flags
)
2656 struct symtabs_and_lines sals
;
2657 struct event_location
*location
;
2658 struct cleanup
*cleanup
;
2661 error (_("Empty line specification."));
2663 location
= string_to_event_location (&string
, current_language
);
2664 cleanup
= make_cleanup_delete_event_location (location
);
2665 if (last_displayed_sal_is_valid ())
2666 sals
= decode_line_1 (location
, flags
,
2667 get_last_displayed_symtab (),
2668 get_last_displayed_line ());
2670 sals
= decode_line_1 (location
, flags
, (struct symtab
*) NULL
, 0);
2673 error (_("Junk at end of line specification: %s"), string
);
2675 do_cleanups (cleanup
);
2681 /* First, some functions to initialize stuff at the beggining of the
2685 initialize_defaults (struct symtab
**default_symtab
, int *default_line
)
2687 if (*default_symtab
== 0)
2689 /* Use whatever we have for the default source line. We don't use
2690 get_current_or_default_symtab_and_line as it can recurse and call
2692 struct symtab_and_line cursal
=
2693 get_current_source_symtab_and_line ();
2695 *default_symtab
= cursal
.symtab
;
2696 *default_line
= cursal
.line
;
2702 /* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR,
2703 advancing EXP_PTR past any parsed text. */
2706 linespec_expression_to_pc (const char **exp_ptr
)
2708 if (current_program_space
->executing_startup
)
2709 /* The error message doesn't really matter, because this case
2710 should only hit during breakpoint reset. */
2711 throw_error (NOT_FOUND_ERROR
, _("cannot evaluate expressions while "
2712 "program space is in startup"));
2715 return value_as_address (parse_to_comma_and_eval (exp_ptr
));
2720 /* Here's where we recognise an Objective-C Selector. An Objective C
2721 selector may be implemented by more than one class, therefore it
2722 may represent more than one method/function. This gives us a
2723 situation somewhat analogous to C++ overloading. If there's more
2724 than one method that could represent the selector, then use some of
2725 the existing C++ code to let the user choose one. */
2727 static struct symtabs_and_lines
2728 decode_objc (struct linespec_state
*self
, linespec_p ls
, const char *arg
)
2730 struct collect_info info
;
2731 VEC (const_char_ptr
) *symbol_names
= NULL
;
2732 struct symtabs_and_lines values
;
2733 const char *new_argptr
;
2734 struct cleanup
*cleanup
= make_cleanup (VEC_cleanup (const_char_ptr
),
2738 info
.file_symtabs
= NULL
;
2739 VEC_safe_push (symtab_ptr
, info
.file_symtabs
, NULL
);
2740 make_cleanup (VEC_cleanup (symtab_ptr
), &info
.file_symtabs
);
2741 info
.result
.symbols
= NULL
;
2742 info
.result
.minimal_symbols
= NULL
;
2746 new_argptr
= find_imps (arg
, &symbol_names
);
2747 if (VEC_empty (const_char_ptr
, symbol_names
))
2749 do_cleanups (cleanup
);
2753 add_all_symbol_names_from_pspace (&info
, NULL
, symbol_names
);
2755 if (!VEC_empty (symbolp
, info
.result
.symbols
)
2756 || !VEC_empty (bound_minimal_symbol_d
, info
.result
.minimal_symbols
))
2760 saved_arg
= alloca (new_argptr
- arg
+ 1);
2761 memcpy (saved_arg
, arg
, new_argptr
- arg
);
2762 saved_arg
[new_argptr
- arg
] = '\0';
2764 ls
->function_name
= xstrdup (saved_arg
);
2765 ls
->function_symbols
= info
.result
.symbols
;
2766 ls
->minimal_symbols
= info
.result
.minimal_symbols
;
2767 values
= convert_linespec_to_sals (self
, ls
);
2769 if (self
->canonical
)
2773 self
->canonical
->pre_expanded
= 1;
2775 if (ls
->source_filename
)
2777 str
= xstrprintf ("%s:%s",
2778 ls
->source_filename
, saved_arg
);
2781 str
= xstrdup (saved_arg
);
2783 make_cleanup (xfree
, str
);
2784 self
->canonical
->location
= new_linespec_location (&str
);
2788 do_cleanups (cleanup
);
2793 /* An instance of this type is used when collecting prefix symbols for
2796 struct decode_compound_collector
2798 /* The result vector. */
2799 VEC (symbolp
) *symbols
;
2801 /* A hash table of all symbols we found. We use this to avoid
2802 adding any symbol more than once. */
2806 /* A callback for iterate_over_symbols that is used by
2807 lookup_prefix_sym to collect type symbols. */
2810 collect_one_symbol (struct symbol
*sym
, void *d
)
2812 struct decode_compound_collector
*collector
= d
;
2816 if (SYMBOL_CLASS (sym
) != LOC_TYPEDEF
)
2817 return 1; /* Continue iterating. */
2819 t
= SYMBOL_TYPE (sym
);
2820 t
= check_typedef (t
);
2821 if (TYPE_CODE (t
) != TYPE_CODE_STRUCT
2822 && TYPE_CODE (t
) != TYPE_CODE_UNION
2823 && TYPE_CODE (t
) != TYPE_CODE_NAMESPACE
)
2824 return 1; /* Continue iterating. */
2826 slot
= htab_find_slot (collector
->unique_syms
, sym
, INSERT
);
2830 VEC_safe_push (symbolp
, collector
->symbols
, sym
);
2833 return 1; /* Continue iterating. */
2836 /* Return any symbols corresponding to CLASS_NAME in FILE_SYMTABS. */
2838 static VEC (symbolp
) *
2839 lookup_prefix_sym (struct linespec_state
*state
, VEC (symtab_ptr
) *file_symtabs
,
2840 const char *class_name
)
2844 struct decode_compound_collector collector
;
2845 struct cleanup
*outer
;
2846 struct cleanup
*cleanup
;
2848 collector
.symbols
= NULL
;
2849 outer
= make_cleanup (VEC_cleanup (symbolp
), &collector
.symbols
);
2851 collector
.unique_syms
= htab_create_alloc (1, htab_hash_pointer
,
2852 htab_eq_pointer
, NULL
,
2854 cleanup
= make_cleanup_htab_delete (collector
.unique_syms
);
2856 for (ix
= 0; VEC_iterate (symtab_ptr
, file_symtabs
, ix
, elt
); ++ix
)
2860 iterate_over_all_matching_symtabs (state
, class_name
, STRUCT_DOMAIN
,
2861 collect_one_symbol
, &collector
,
2863 iterate_over_all_matching_symtabs (state
, class_name
, VAR_DOMAIN
,
2864 collect_one_symbol
, &collector
,
2869 /* Program spaces that are executing startup should have
2870 been filtered out earlier. */
2871 gdb_assert (!SYMTAB_PSPACE (elt
)->executing_startup
);
2872 set_current_program_space (SYMTAB_PSPACE (elt
));
2873 iterate_over_file_blocks (elt
, class_name
, STRUCT_DOMAIN
,
2874 collect_one_symbol
, &collector
);
2875 iterate_over_file_blocks (elt
, class_name
, VAR_DOMAIN
,
2876 collect_one_symbol
, &collector
);
2880 do_cleanups (cleanup
);
2881 discard_cleanups (outer
);
2882 return collector
.symbols
;
2885 /* A qsort comparison function for symbols. The resulting order does
2886 not actually matter; we just need to be able to sort them so that
2887 symbols with the same program space end up next to each other. */
2890 compare_symbols (const void *a
, const void *b
)
2892 struct symbol
* const *sa
= a
;
2893 struct symbol
* const *sb
= b
;
2896 uia
= (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sa
));
2897 uib
= (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sb
));
2904 uia
= (uintptr_t) *sa
;
2905 uib
= (uintptr_t) *sb
;
2915 /* Like compare_symbols but for minimal symbols. */
2918 compare_msymbols (const void *a
, const void *b
)
2920 const struct bound_minimal_symbol
*sa
= a
;
2921 const struct bound_minimal_symbol
*sb
= b
;
2924 uia
= (uintptr_t) sa
->objfile
->pspace
;
2925 uib
= (uintptr_t) sa
->objfile
->pspace
;
2932 uia
= (uintptr_t) sa
->minsym
;
2933 uib
= (uintptr_t) sb
->minsym
;
2943 /* Look for all the matching instances of each symbol in NAMES. Only
2944 instances from PSPACE are considered; other program spaces are
2945 handled by our caller. If PSPACE is NULL, then all program spaces
2946 are considered. Results are stored into INFO. */
2949 add_all_symbol_names_from_pspace (struct collect_info
*info
,
2950 struct program_space
*pspace
,
2951 VEC (const_char_ptr
) *names
)
2956 for (ix
= 0; VEC_iterate (const_char_ptr
, names
, ix
, iter
); ++ix
)
2957 add_matching_symbols_to_info (iter
, info
, pspace
);
2961 find_superclass_methods (VEC (typep
) *superclasses
,
2963 VEC (const_char_ptr
) **result_names
)
2965 int old_len
= VEC_length (const_char_ptr
, *result_names
);
2966 VEC (typep
) *iter_classes
;
2967 struct cleanup
*cleanup
= make_cleanup (null_cleanup
, NULL
);
2969 iter_classes
= superclasses
;
2972 VEC (typep
) *new_supers
= NULL
;
2976 make_cleanup (VEC_cleanup (typep
), &new_supers
);
2977 for (ix
= 0; VEC_iterate (typep
, iter_classes
, ix
, t
); ++ix
)
2978 find_methods (t
, name
, result_names
, &new_supers
);
2980 if (VEC_length (const_char_ptr
, *result_names
) != old_len
2981 || VEC_empty (typep
, new_supers
))
2984 iter_classes
= new_supers
;
2987 do_cleanups (cleanup
);
2990 /* This finds the method METHOD_NAME in the class CLASS_NAME whose type is
2991 given by one of the symbols in SYM_CLASSES. Matches are returned
2992 in SYMBOLS (for debug symbols) and MINSYMS (for minimal symbols). */
2995 find_method (struct linespec_state
*self
, VEC (symtab_ptr
) *file_symtabs
,
2996 const char *class_name
, const char *method_name
,
2997 VEC (symbolp
) *sym_classes
, VEC (symbolp
) **symbols
,
2998 VEC (bound_minimal_symbol_d
) **minsyms
)
3001 struct cleanup
*cleanup
= make_cleanup (null_cleanup
, NULL
);
3003 int last_result_len
;
3004 VEC (typep
) *superclass_vec
;
3005 VEC (const_char_ptr
) *result_names
;
3006 struct collect_info info
;
3008 /* Sort symbols so that symbols with the same program space are next
3010 qsort (VEC_address (symbolp
, sym_classes
),
3011 VEC_length (symbolp
, sym_classes
),
3016 info
.file_symtabs
= file_symtabs
;
3017 info
.result
.symbols
= NULL
;
3018 info
.result
.minimal_symbols
= NULL
;
3020 /* Iterate over all the types, looking for the names of existing
3021 methods matching METHOD_NAME. If we cannot find a direct method in a
3022 given program space, then we consider inherited methods; this is
3023 not ideal (ideal would be to respect C++ hiding rules), but it
3024 seems good enough and is what GDB has historically done. We only
3025 need to collect the names because later we find all symbols with
3026 those names. This loop is written in a somewhat funny way
3027 because we collect data across the program space before deciding
3029 superclass_vec
= NULL
;
3030 make_cleanup (VEC_cleanup (typep
), &superclass_vec
);
3031 result_names
= NULL
;
3032 make_cleanup (VEC_cleanup (const_char_ptr
), &result_names
);
3033 last_result_len
= 0;
3034 for (ix
= 0; VEC_iterate (symbolp
, sym_classes
, ix
, sym
); ++ix
)
3037 struct program_space
*pspace
;
3039 /* Program spaces that are executing startup should have
3040 been filtered out earlier. */
3041 pspace
= SYMTAB_PSPACE (symbol_symtab (sym
));
3042 gdb_assert (!pspace
->executing_startup
);
3043 set_current_program_space (pspace
);
3044 t
= check_typedef (SYMBOL_TYPE (sym
));
3045 find_methods (t
, method_name
, &result_names
, &superclass_vec
);
3047 /* Handle all items from a single program space at once; and be
3048 sure not to miss the last batch. */
3049 if (ix
== VEC_length (symbolp
, sym_classes
) - 1
3051 != SYMTAB_PSPACE (symbol_symtab (VEC_index (symbolp
, sym_classes
,
3054 /* If we did not find a direct implementation anywhere in
3055 this program space, consider superclasses. */
3056 if (VEC_length (const_char_ptr
, result_names
) == last_result_len
)
3057 find_superclass_methods (superclass_vec
, method_name
,
3060 /* We have a list of candidate symbol names, so now we
3061 iterate over the symbol tables looking for all
3062 matches in this pspace. */
3063 add_all_symbol_names_from_pspace (&info
, pspace
, result_names
);
3065 VEC_truncate (typep
, superclass_vec
, 0);
3066 last_result_len
= VEC_length (const_char_ptr
, result_names
);
3070 if (!VEC_empty (symbolp
, info
.result
.symbols
)
3071 || !VEC_empty (bound_minimal_symbol_d
, info
.result
.minimal_symbols
))
3073 *symbols
= info
.result
.symbols
;
3074 *minsyms
= info
.result
.minimal_symbols
;
3075 do_cleanups (cleanup
);
3079 /* Throw an NOT_FOUND_ERROR. This will be caught by the caller
3080 and other attempts to locate the symbol will be made. */
3081 throw_error (NOT_FOUND_ERROR
, _("see caller, this text doesn't matter"));
3086 /* This object is used when collecting all matching symtabs. */
3088 struct symtab_collector
3090 /* The result vector of symtabs. */
3091 VEC (symtab_ptr
) *symtabs
;
3093 /* This is used to ensure the symtabs are unique. */
3094 htab_t symtab_table
;
3097 /* Callback for iterate_over_symtabs. */
3100 add_symtabs_to_list (struct symtab
*symtab
, void *d
)
3102 struct symtab_collector
*data
= d
;
3105 slot
= htab_find_slot (data
->symtab_table
, symtab
, INSERT
);
3109 VEC_safe_push (symtab_ptr
, data
->symtabs
, symtab
);
3115 /* Given a file name, return a VEC of all matching symtabs. */
3117 static VEC (symtab_ptr
) *
3118 collect_symtabs_from_filename (const char *file
)
3120 struct symtab_collector collector
;
3121 struct cleanup
*cleanups
;
3122 struct program_space
*pspace
;
3124 collector
.symtabs
= NULL
;
3125 collector
.symtab_table
= htab_create (1, htab_hash_pointer
, htab_eq_pointer
,
3127 cleanups
= make_cleanup_htab_delete (collector
.symtab_table
);
3129 /* Find that file's data. */
3130 ALL_PSPACES (pspace
)
3132 if (pspace
->executing_startup
)
3135 set_current_program_space (pspace
);
3136 iterate_over_symtabs (file
, add_symtabs_to_list
, &collector
);
3139 do_cleanups (cleanups
);
3140 return collector
.symtabs
;
3143 /* Return all the symtabs associated to the FILENAME. */
3145 static VEC (symtab_ptr
) *
3146 symtabs_from_filename (const char *filename
)
3148 VEC (symtab_ptr
) *result
;
3150 result
= collect_symtabs_from_filename (filename
);
3152 if (VEC_empty (symtab_ptr
, result
))
3154 if (!have_full_symbols () && !have_partial_symbols ())
3155 throw_error (NOT_FOUND_ERROR
,
3156 _("No symbol table is loaded. "
3157 "Use the \"file\" command."));
3158 throw_error (NOT_FOUND_ERROR
, _("No source file named %s."), filename
);
3164 /* Look up a function symbol named NAME in symtabs FILE_SYMTABS. Matching
3165 debug symbols are returned in SYMBOLS. Matching minimal symbols are
3166 returned in MINSYMS. */
3169 find_function_symbols (struct linespec_state
*state
,
3170 VEC (symtab_ptr
) *file_symtabs
, const char *name
,
3171 VEC (symbolp
) **symbols
,
3172 VEC (bound_minimal_symbol_d
) **minsyms
)
3174 struct collect_info info
;
3175 VEC (const_char_ptr
) *symbol_names
= NULL
;
3176 struct cleanup
*cleanup
= make_cleanup (VEC_cleanup (const_char_ptr
),
3180 info
.result
.symbols
= NULL
;
3181 info
.result
.minimal_symbols
= NULL
;
3182 info
.file_symtabs
= file_symtabs
;
3184 /* Try NAME as an Objective-C selector. */
3185 find_imps (name
, &symbol_names
);
3186 if (!VEC_empty (const_char_ptr
, symbol_names
))
3187 add_all_symbol_names_from_pspace (&info
, NULL
, symbol_names
);
3189 add_matching_symbols_to_info (name
, &info
, NULL
);
3191 do_cleanups (cleanup
);
3193 if (VEC_empty (symbolp
, info
.result
.symbols
))
3195 VEC_free (symbolp
, info
.result
.symbols
);
3199 *symbols
= info
.result
.symbols
;
3201 if (VEC_empty (bound_minimal_symbol_d
, info
.result
.minimal_symbols
))
3203 VEC_free (bound_minimal_symbol_d
, info
.result
.minimal_symbols
);
3207 *minsyms
= info
.result
.minimal_symbols
;
3210 /* Find all symbols named NAME in FILE_SYMTABS, returning debug symbols
3211 in SYMBOLS and minimal symbols in MINSYMS. */
3214 find_linespec_symbols (struct linespec_state
*state
,
3215 VEC (symtab_ptr
) *file_symtabs
,
3217 VEC (symbolp
) **symbols
,
3218 VEC (bound_minimal_symbol_d
) **minsyms
)
3220 struct cleanup
*cleanup
;
3222 const char *lookup_name
;
3224 cleanup
= demangle_for_lookup (name
, state
->language
->la_language
,
3226 if (state
->language
->la_language
== language_ada
)
3228 /* In Ada, the symbol lookups are performed using the encoded
3229 name rather than the demangled name. */
3230 lookup_name
= ada_name_for_lookup (name
);
3231 make_cleanup (xfree
, (void *) lookup_name
);
3234 canon
= cp_canonicalize_string_no_typedefs (lookup_name
);
3237 lookup_name
= canon
;
3238 make_cleanup (xfree
, canon
);
3241 /* It's important to not call expand_symtabs_matching unnecessarily
3242 as it can really slow things down (by unnecessarily expanding
3243 potentially 1000s of symtabs, which when debugging some apps can
3244 cost 100s of seconds). Avoid this to some extent by *first* calling
3245 find_function_symbols, and only if that doesn't find anything
3246 *then* call find_method. This handles two important cases:
3247 1) break (anonymous namespace)::foo
3248 2) break class::method where method is in class (and not a baseclass) */
3250 find_function_symbols (state
, file_symtabs
, lookup_name
,
3253 /* If we were unable to locate a symbol of the same name, try dividing
3254 the name into class and method names and searching the class and its
3256 if (VEC_empty (symbolp
, *symbols
)
3257 && VEC_empty (bound_minimal_symbol_d
, *minsyms
))
3259 char *klass
, *method
;
3260 const char *last
, *p
, *scope_op
;
3261 VEC (symbolp
) *classes
;
3263 /* See if we can find a scope operator and break this symbol
3264 name into namespaces${SCOPE_OPERATOR}class_name and method_name. */
3266 p
= find_toplevel_string (lookup_name
, scope_op
);
3269 /* No C++ scope operator. Try Java. */
3271 p
= find_toplevel_string (lookup_name
, scope_op
);
3278 p
= find_toplevel_string (p
+ strlen (scope_op
), scope_op
);
3281 /* If no scope operator was found, there is nothing more we can do;
3282 we already attempted to lookup the entire name as a symbol
3286 do_cleanups (cleanup
);
3290 /* LOOKUP_NAME points to the class name.
3291 LAST points to the method name. */
3292 klass
= xmalloc ((last
- lookup_name
+ 1) * sizeof (char));
3293 make_cleanup (xfree
, klass
);
3294 strncpy (klass
, lookup_name
, last
- lookup_name
);
3295 klass
[last
- lookup_name
] = '\0';
3297 /* Skip past the scope operator. */
3298 last
+= strlen (scope_op
);
3299 method
= xmalloc ((strlen (last
) + 1) * sizeof (char));
3300 make_cleanup (xfree
, method
);
3301 strcpy (method
, last
);
3303 /* Find a list of classes named KLASS. */
3304 classes
= lookup_prefix_sym (state
, file_symtabs
, klass
);
3305 make_cleanup (VEC_cleanup (symbolp
), &classes
);
3307 if (!VEC_empty (symbolp
, classes
))
3309 /* Now locate a list of suitable methods named METHOD. */
3312 find_method (state
, file_symtabs
, klass
, method
, classes
,
3316 /* If successful, we're done. If NOT_FOUND_ERROR
3317 was not thrown, rethrow the exception that we did get. */
3318 CATCH (except
, RETURN_MASK_ERROR
)
3320 if (except
.error
!= NOT_FOUND_ERROR
)
3321 throw_exception (except
);
3327 do_cleanups (cleanup
);
3330 /* Return all labels named NAME in FUNCTION_SYMBOLS. Return the
3331 actual function symbol in which the label was found in LABEL_FUNC_RET. */
3333 static VEC (symbolp
) *
3334 find_label_symbols (struct linespec_state
*self
,
3335 VEC (symbolp
) *function_symbols
,
3336 VEC (symbolp
) **label_funcs_ret
, const char *name
)
3339 const struct block
*block
;
3341 struct symbol
*fn_sym
;
3342 VEC (symbolp
) *result
= NULL
;
3344 if (function_symbols
== NULL
)
3346 set_current_program_space (self
->program_space
);
3347 block
= get_current_search_block ();
3350 block
&& !BLOCK_FUNCTION (block
);
3351 block
= BLOCK_SUPERBLOCK (block
))
3355 fn_sym
= BLOCK_FUNCTION (block
);
3357 sym
= lookup_symbol (name
, block
, LABEL_DOMAIN
, 0).symbol
;
3361 VEC_safe_push (symbolp
, result
, sym
);
3362 VEC_safe_push (symbolp
, *label_funcs_ret
, fn_sym
);
3368 VEC_iterate (symbolp
, function_symbols
, ix
, fn_sym
); ++ix
)
3370 set_current_program_space (SYMTAB_PSPACE (symbol_symtab (fn_sym
)));
3371 block
= SYMBOL_BLOCK_VALUE (fn_sym
);
3372 sym
= lookup_symbol (name
, block
, LABEL_DOMAIN
, 0).symbol
;
3376 VEC_safe_push (symbolp
, result
, sym
);
3377 VEC_safe_push (symbolp
, *label_funcs_ret
, fn_sym
);
3387 /* A helper for create_sals_line_offset that handles the 'list_mode' case. */
3390 decode_digits_list_mode (struct linespec_state
*self
,
3392 struct symtabs_and_lines
*values
,
3393 struct symtab_and_line val
)
3398 gdb_assert (self
->list_mode
);
3400 for (ix
= 0; VEC_iterate (symtab_ptr
, ls
->file_symtabs
, ix
, elt
);
3403 /* The logic above should ensure this. */
3404 gdb_assert (elt
!= NULL
);
3406 set_current_program_space (SYMTAB_PSPACE (elt
));
3408 /* Simplistic search just for the list command. */
3409 val
.symtab
= find_line_symtab (elt
, val
.line
, NULL
, NULL
);
3410 if (val
.symtab
== NULL
)
3412 val
.pspace
= SYMTAB_PSPACE (elt
);
3414 val
.explicit_line
= 1;
3416 add_sal_to_sals (self
, values
, &val
, NULL
, 0);
3420 /* A helper for create_sals_line_offset that iterates over the symtabs,
3421 adding lines to the VEC. */
3424 decode_digits_ordinary (struct linespec_state
*self
,
3427 struct symtabs_and_lines
*sals
,
3428 struct linetable_entry
**best_entry
)
3433 for (ix
= 0; VEC_iterate (symtab_ptr
, ls
->file_symtabs
, ix
, elt
); ++ix
)
3436 VEC (CORE_ADDR
) *pcs
;
3439 /* The logic above should ensure this. */
3440 gdb_assert (elt
!= NULL
);
3442 set_current_program_space (SYMTAB_PSPACE (elt
));
3444 pcs
= find_pcs_for_symtab_line (elt
, line
, best_entry
);
3445 for (i
= 0; VEC_iterate (CORE_ADDR
, pcs
, i
, pc
); ++i
)
3447 struct symtab_and_line sal
;
3450 sal
.pspace
= SYMTAB_PSPACE (elt
);
3454 add_sal_to_sals_basic (sals
, &sal
);
3457 VEC_free (CORE_ADDR
, pcs
);
3463 /* Return the line offset represented by VARIABLE. */
3465 static struct line_offset
3466 linespec_parse_variable (struct linespec_state
*self
, const char *variable
)
3470 struct line_offset offset
= {0, LINE_OFFSET_NONE
};
3472 p
= (variable
[1] == '$') ? variable
+ 2 : variable
+ 1;
3475 while (*p
>= '0' && *p
<= '9')
3477 if (!*p
) /* Reached end of token without hitting non-digit. */
3479 /* We have a value history reference. */
3480 struct value
*val_history
;
3482 sscanf ((variable
[1] == '$') ? variable
+ 2 : variable
+ 1, "%d", &index
);
3484 = access_value_history ((variable
[1] == '$') ? -index
: index
);
3485 if (TYPE_CODE (value_type (val_history
)) != TYPE_CODE_INT
)
3486 error (_("History values used in line "
3487 "specs must have integer values."));
3488 offset
.offset
= value_as_long (val_history
);
3492 /* Not all digits -- may be user variable/function or a
3493 convenience variable. */
3495 struct internalvar
*ivar
;
3497 /* Try it as a convenience variable. If it is not a convenience
3498 variable, return and allow normal symbol lookup to occur. */
3499 ivar
= lookup_only_internalvar (variable
+ 1);
3501 /* No internal variable with that name. Mark the offset
3502 as unknown to allow the name to be looked up as a symbol. */
3503 offset
.sign
= LINE_OFFSET_UNKNOWN
;
3506 /* We found a valid variable name. If it is not an integer,
3508 if (!get_internalvar_integer (ivar
, &valx
))
3509 error (_("Convenience variables used in line "
3510 "specs must have integer values."));
3512 offset
.offset
= valx
;
3520 /* A callback used to possibly add a symbol to the results. */
3523 collect_symbols (struct symbol
*sym
, void *data
)
3525 struct collect_info
*info
= data
;
3527 /* In list mode, add all matching symbols, regardless of class.
3528 This allows the user to type "list a_global_variable". */
3529 if (SYMBOL_CLASS (sym
) == LOC_BLOCK
|| info
->state
->list_mode
)
3530 VEC_safe_push (symbolp
, info
->result
.symbols
, sym
);
3531 return 1; /* Continue iterating. */
3534 /* We've found a minimal symbol MSYMBOL in OBJFILE to associate with our
3535 linespec; return the SAL in RESULT. This function should return SALs
3536 matching those from find_function_start_sal, otherwise false
3537 multiple-locations breakpoints could be placed. */
3540 minsym_found (struct linespec_state
*self
, struct objfile
*objfile
,
3541 struct minimal_symbol
*msymbol
,
3542 struct symtabs_and_lines
*result
)
3544 struct gdbarch
*gdbarch
= get_objfile_arch (objfile
);
3546 struct symtab_and_line sal
;
3548 sal
= find_pc_sect_line (MSYMBOL_VALUE_ADDRESS (objfile
, msymbol
),
3549 (struct obj_section
*) 0, 0);
3550 sal
.section
= MSYMBOL_OBJ_SECTION (objfile
, msymbol
);
3552 /* The minimal symbol might point to a function descriptor;
3553 resolve it to the actual code address instead. */
3554 pc
= gdbarch_convert_from_func_ptr_addr (gdbarch
, sal
.pc
, ¤t_target
);
3556 sal
= find_pc_sect_line (pc
, NULL
, 0);
3558 if (self
->funfirstline
)
3560 if (sal
.symtab
!= NULL
3561 && (COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (sal
.symtab
))
3562 || SYMTAB_LANGUAGE (sal
.symtab
) == language_asm
))
3564 /* If gdbarch_convert_from_func_ptr_addr does not apply then
3565 sal.SECTION, sal.LINE&co. will stay correct from above.
3566 If gdbarch_convert_from_func_ptr_addr applies then
3567 sal.SECTION is cleared from above and sal.LINE&co. will
3568 stay correct from the last find_pc_sect_line above. */
3569 sal
.pc
= MSYMBOL_VALUE_ADDRESS (objfile
, msymbol
);
3570 sal
.pc
= gdbarch_convert_from_func_ptr_addr (gdbarch
, sal
.pc
,
3574 skip_prologue_sal (&sal
);
3577 if (maybe_add_address (self
->addr_set
, objfile
->pspace
, sal
.pc
))
3578 add_sal_to_sals (self
, result
, &sal
, MSYMBOL_NATURAL_NAME (msymbol
), 0);
3581 /* A helper struct to pass some data through
3582 iterate_over_minimal_symbols. */
3584 struct collect_minsyms
3586 /* The objfile we're examining. */
3587 struct objfile
*objfile
;
3589 /* Only search the given symtab, or NULL to search for all symbols. */
3590 struct symtab
*symtab
;
3592 /* The funfirstline setting from the initial call. */
3595 /* The list_mode setting from the initial call. */
3598 /* The resulting symbols. */
3599 VEC (bound_minimal_symbol_d
) *msyms
;
3602 /* A helper function to classify a minimal_symbol_type according to
3606 classify_mtype (enum minimal_symbol_type t
)
3613 /* Intermediate priority. */
3616 case mst_solib_trampoline
:
3617 /* Lowest priority. */
3621 /* Highest priority. */
3626 /* Callback for qsort that sorts symbols by priority. */
3629 compare_msyms (const void *a
, const void *b
)
3631 const bound_minimal_symbol_d
*moa
= a
;
3632 const bound_minimal_symbol_d
*mob
= b
;
3633 enum minimal_symbol_type ta
= MSYMBOL_TYPE (moa
->minsym
);
3634 enum minimal_symbol_type tb
= MSYMBOL_TYPE (mob
->minsym
);
3636 return classify_mtype (ta
) - classify_mtype (tb
);
3639 /* Callback for iterate_over_minimal_symbols that adds the symbol to
3643 add_minsym (struct minimal_symbol
*minsym
, void *d
)
3645 struct collect_minsyms
*info
= d
;
3646 bound_minimal_symbol_d mo
;
3649 mo
.objfile
= info
->objfile
;
3651 if (info
->symtab
!= NULL
)
3654 struct symtab_and_line sal
;
3655 struct gdbarch
*gdbarch
= get_objfile_arch (info
->objfile
);
3657 sal
= find_pc_sect_line (MSYMBOL_VALUE_ADDRESS (info
->objfile
, minsym
),
3659 sal
.section
= MSYMBOL_OBJ_SECTION (info
->objfile
, minsym
);
3661 = gdbarch_convert_from_func_ptr_addr (gdbarch
, sal
.pc
, ¤t_target
);
3663 sal
= find_pc_sect_line (pc
, NULL
, 0);
3665 if (info
->symtab
!= sal
.symtab
)
3669 /* Exclude data symbols when looking for breakpoint locations. */
3670 if (!info
->list_mode
)
3671 switch (minsym
->type
)
3673 case mst_slot_got_plt
:
3680 /* Make sure this minsym is not a function descriptor
3681 before we decide to discard it. */
3682 struct gdbarch
*gdbarch
= get_objfile_arch (info
->objfile
);
3683 CORE_ADDR addr
= gdbarch_convert_from_func_ptr_addr
3684 (gdbarch
, BMSYMBOL_VALUE_ADDRESS (mo
),
3687 if (addr
== BMSYMBOL_VALUE_ADDRESS (mo
))
3692 VEC_safe_push (bound_minimal_symbol_d
, info
->msyms
, &mo
);
3695 /* Search for minimal symbols called NAME. If SEARCH_PSPACE
3696 is not NULL, the search is restricted to just that program
3699 If SYMTAB is NULL, search all objfiles, otherwise
3700 restrict results to the given SYMTAB. */
3703 search_minsyms_for_name (struct collect_info
*info
, const char *name
,
3704 struct program_space
*search_pspace
,
3705 struct symtab
*symtab
)
3707 struct collect_minsyms local
;
3708 struct cleanup
*cleanup
;
3710 memset (&local
, 0, sizeof (local
));
3711 local
.funfirstline
= info
->state
->funfirstline
;
3712 local
.list_mode
= info
->state
->list_mode
;
3713 local
.symtab
= symtab
;
3715 cleanup
= make_cleanup (VEC_cleanup (bound_minimal_symbol_d
), &local
.msyms
);
3719 struct program_space
*pspace
;
3721 ALL_PSPACES (pspace
)
3723 struct objfile
*objfile
;
3725 if (search_pspace
!= NULL
&& search_pspace
!= pspace
)
3727 if (pspace
->executing_startup
)
3730 set_current_program_space (pspace
);
3732 ALL_OBJFILES (objfile
)
3734 local
.objfile
= objfile
;
3735 iterate_over_minimal_symbols (objfile
, name
, add_minsym
, &local
);
3741 if (search_pspace
== NULL
|| SYMTAB_PSPACE (symtab
) == search_pspace
)
3743 set_current_program_space (SYMTAB_PSPACE (symtab
));
3744 local
.objfile
= SYMTAB_OBJFILE(symtab
);
3745 iterate_over_minimal_symbols (local
.objfile
, name
, add_minsym
,
3750 if (!VEC_empty (bound_minimal_symbol_d
, local
.msyms
))
3754 bound_minimal_symbol_d
*item
;
3756 qsort (VEC_address (bound_minimal_symbol_d
, local
.msyms
),
3757 VEC_length (bound_minimal_symbol_d
, local
.msyms
),
3758 sizeof (bound_minimal_symbol_d
),
3761 /* Now the minsyms are in classification order. So, we walk
3762 over them and process just the minsyms with the same
3763 classification as the very first minsym in the list. */
3764 item
= VEC_index (bound_minimal_symbol_d
, local
.msyms
, 0);
3765 classification
= classify_mtype (MSYMBOL_TYPE (item
->minsym
));
3768 VEC_iterate (bound_minimal_symbol_d
, local
.msyms
, ix
, item
);
3771 if (classify_mtype (MSYMBOL_TYPE (item
->minsym
)) != classification
)
3774 VEC_safe_push (bound_minimal_symbol_d
,
3775 info
->result
.minimal_symbols
, item
);
3779 do_cleanups (cleanup
);
3782 /* A helper function to add all symbols matching NAME to INFO. If
3783 PSPACE is not NULL, the search is restricted to just that program
3787 add_matching_symbols_to_info (const char *name
,
3788 struct collect_info
*info
,
3789 struct program_space
*pspace
)
3794 for (ix
= 0; VEC_iterate (symtab_ptr
, info
->file_symtabs
, ix
, elt
); ++ix
)
3798 iterate_over_all_matching_symtabs (info
->state
, name
, VAR_DOMAIN
,
3799 collect_symbols
, info
,
3801 search_minsyms_for_name (info
, name
, pspace
, NULL
);
3803 else if (pspace
== NULL
|| pspace
== SYMTAB_PSPACE (elt
))
3805 int prev_len
= VEC_length (symbolp
, info
->result
.symbols
);
3807 /* Program spaces that are executing startup should have
3808 been filtered out earlier. */
3809 gdb_assert (!SYMTAB_PSPACE (elt
)->executing_startup
);
3810 set_current_program_space (SYMTAB_PSPACE (elt
));
3811 iterate_over_file_blocks (elt
, name
, VAR_DOMAIN
,
3812 collect_symbols
, info
);
3814 /* If no new symbols were found in this iteration and this symtab
3815 is in assembler, we might actually be looking for a label for
3816 which we don't have debug info. Check for a minimal symbol in
3818 if (prev_len
== VEC_length (symbolp
, info
->result
.symbols
)
3819 && elt
->language
== language_asm
)
3820 search_minsyms_for_name (info
, name
, pspace
, elt
);
3827 /* Now come some functions that are called from multiple places within
3831 symbol_to_sal (struct symtab_and_line
*result
,
3832 int funfirstline
, struct symbol
*sym
)
3834 if (SYMBOL_CLASS (sym
) == LOC_BLOCK
)
3836 *result
= find_function_start_sal (sym
, funfirstline
);
3841 if (SYMBOL_CLASS (sym
) == LOC_LABEL
&& SYMBOL_VALUE_ADDRESS (sym
) != 0)
3844 result
->symtab
= symbol_symtab (sym
);
3845 result
->line
= SYMBOL_LINE (sym
);
3846 result
->pc
= SYMBOL_VALUE_ADDRESS (sym
);
3847 result
->pspace
= SYMTAB_PSPACE (result
->symtab
);
3848 result
->explicit_pc
= 1;
3851 else if (funfirstline
)
3855 else if (SYMBOL_LINE (sym
) != 0)
3857 /* We know its line number. */
3859 result
->symtab
= symbol_symtab (sym
);
3860 result
->line
= SYMBOL_LINE (sym
);
3861 result
->pspace
= SYMTAB_PSPACE (result
->symtab
);
3869 /* See the comment in linespec.h. */
3872 init_linespec_result (struct linespec_result
*lr
)
3874 memset (lr
, 0, sizeof (*lr
));
3877 /* See the comment in linespec.h. */
3880 destroy_linespec_result (struct linespec_result
*ls
)
3883 struct linespec_sals
*lsal
;
3885 delete_event_location (ls
->location
);
3886 for (i
= 0; VEC_iterate (linespec_sals
, ls
->sals
, i
, lsal
); ++i
)
3888 xfree (lsal
->canonical
);
3889 xfree (lsal
->sals
.sals
);
3891 VEC_free (linespec_sals
, ls
->sals
);
3894 /* Cleanup function for a linespec_result. */
3897 cleanup_linespec_result (void *a
)
3899 destroy_linespec_result (a
);
3902 /* See the comment in linespec.h. */
3905 make_cleanup_destroy_linespec_result (struct linespec_result
*ls
)
3907 return make_cleanup (cleanup_linespec_result
, ls
);