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"
47 typedef struct symbol
*symbolp
;
50 typedef struct type
*typep
;
53 /* An address entry is used to ensure that any given location is only
54 added to the result a single time. It holds an address and the
55 program space from which the address came. */
59 struct program_space
*pspace
;
63 typedef struct bound_minimal_symbol bound_minimal_symbol_d
;
65 DEF_VEC_O (bound_minimal_symbol_d
);
67 /* An enumeration of possible signs for a line offset. */
68 enum offset_relative_sign
73 /* A plus sign ("+") */
76 /* A minus sign ("-") */
79 /* A special "sign" for unspecified offset. */
83 /* A line offset in a linespec. */
87 /* Line offset and any specified sign. */
89 enum offset_relative_sign sign
;
92 /* A linespec. Elements of this structure are filled in by a parser
93 (either parse_linespec or some other function). The structure is
94 then converted into SALs by convert_linespec_to_sals. */
98 /* An expression and the resulting PC. Specifying an expression
99 currently precludes the use of other members. */
101 /* The expression entered by the user. */
102 const char *expression
;
104 /* The resulting PC expression derived from evaluating EXPRESSION. */
107 /* Any specified file symtabs. */
109 /* The user-supplied source filename or NULL if none was specified. */
110 const char *source_filename
;
112 /* The list of symtabs to search to which to limit the search. May not
113 be NULL. If SOURCE_FILENAME is NULL (no user-specified filename),
114 FILE_SYMTABS should contain one single NULL member. This will
115 cause the code to use the default symtab. */
116 VEC (symtab_ptr
) *file_symtabs
;
118 /* The name of a function or method and any matching symbols. */
120 /* The user-specified function name. If no function name was
121 supplied, this may be NULL. */
122 const char *function_name
;
124 /* A list of matching function symbols and minimal symbols. Both lists
125 may be NULL if no matching symbols were found. */
126 VEC (symbolp
) *function_symbols
;
127 VEC (bound_minimal_symbol_d
) *minimal_symbols
;
129 /* The name of a label and matching symbols. */
131 /* The user-specified label name. */
132 const char *label_name
;
134 /* A structure of matching label symbols and the corresponding
135 function symbol in which the label was found. Both may be NULL
136 or both must be non-NULL. */
139 VEC (symbolp
) *label_symbols
;
140 VEC (symbolp
) *function_symbols
;
143 /* Line offset. It may be LINE_OFFSET_UNKNOWN, meaning that no
144 offset was specified. */
145 struct line_offset line_offset
;
147 typedef struct linespec
*linespec_p
;
149 /* A canonical linespec represented as a symtab-related string.
151 Each entry represents the "SYMTAB:SUFFIX" linespec string.
152 SYMTAB can be converted for example by symtab_to_fullname or
153 symtab_to_filename_for_display as needed. */
155 struct linespec_canonical_name
157 /* Remaining text part of the linespec string. */
160 /* If NULL then SUFFIX is the whole linespec string. */
161 struct symtab
*symtab
;
164 /* An instance of this is used to keep all state while linespec
165 operates. This instance is passed around as a 'this' pointer to
166 the various implementation methods. */
168 struct linespec_state
170 /* The language in use during linespec processing. */
171 const struct language_defn
*language
;
173 /* The program space as seen when the module was entered. */
174 struct program_space
*program_space
;
176 /* The default symtab to use, if no other symtab is specified. */
177 struct symtab
*default_symtab
;
179 /* The default line to use. */
182 /* The 'funfirstline' value that was passed in to decode_line_1 or
186 /* Nonzero if we are running in 'list' mode; see decode_line_list. */
189 /* The 'canonical' value passed to decode_line_full, or NULL. */
190 struct linespec_result
*canonical
;
192 /* Canonical strings that mirror the symtabs_and_lines result. */
193 struct linespec_canonical_name
*canonical_names
;
195 /* This is a set of address_entry objects which is used to prevent
196 duplicate symbols from being entered into the result. */
200 /* This is a helper object that is used when collecting symbols into a
205 /* The linespec object in use. */
206 struct linespec_state
*state
;
208 /* A list of symtabs to which to restrict matches. */
209 VEC (symtab_ptr
) *file_symtabs
;
211 /* The result being accumulated. */
214 VEC (symbolp
) *symbols
;
215 VEC (bound_minimal_symbol_d
) *minimal_symbols
;
226 /* A colon "separator" */
238 /* EOI (end of input) */
244 typedef enum ls_token_type linespec_token_type
;
246 /* List of keywords */
248 static const char * const linespec_keywords
[] = { "if", "thread", "task" };
249 #define IF_KEYWORD_INDEX 0
251 /* A token of the linespec lexer */
255 /* The type of the token */
256 linespec_token_type type
;
258 /* Data for the token */
261 /* A string, given as a stoken */
262 struct stoken string
;
268 typedef struct ls_token linespec_token
;
270 #define LS_TOKEN_STOKEN(TOK) (TOK).data.string
271 #define LS_TOKEN_KEYWORD(TOK) (TOK).data.keyword
273 /* An instance of the linespec parser. */
277 /* Lexer internal data */
280 /* Save head of input stream. */
281 const char *saved_arg
;
283 /* Head of the input stream. */
285 #define PARSER_STREAM(P) (*(P)->lexer.stream)
287 /* The current token. */
288 linespec_token current
;
291 /* Is the entire linespec quote-enclosed? */
292 int is_quote_enclosed
;
294 /* The state of the parse. */
295 struct linespec_state state
;
296 #define PARSER_STATE(PPTR) (&(PPTR)->state)
298 /* The result of the parse. */
299 struct linespec result
;
300 #define PARSER_RESULT(PPTR) (&(PPTR)->result)
302 typedef struct ls_parser linespec_parser
;
304 /* Prototypes for local functions. */
306 static void iterate_over_file_blocks (struct symtab
*symtab
,
307 const char *name
, domain_enum domain
,
308 symbol_found_callback_ftype
*callback
,
311 static void initialize_defaults (struct symtab
**default_symtab
,
314 static CORE_ADDR
linespec_expression_to_pc (const char **exp_ptr
);
316 static struct symtabs_and_lines
decode_objc (struct linespec_state
*self
,
318 const char **argptr
);
320 static VEC (symtab_ptr
) *symtabs_from_filename (const char *);
322 static VEC (symbolp
) *find_label_symbols (struct linespec_state
*self
,
323 VEC (symbolp
) *function_symbols
,
324 VEC (symbolp
) **label_funcs_ret
,
327 static void find_linespec_symbols (struct linespec_state
*self
,
328 VEC (symtab_ptr
) *file_symtabs
,
330 VEC (symbolp
) **symbols
,
331 VEC (bound_minimal_symbol_d
) **minsyms
);
333 static struct line_offset
334 linespec_parse_variable (struct linespec_state
*self
,
335 const char *variable
);
337 static int symbol_to_sal (struct symtab_and_line
*result
,
338 int funfirstline
, struct symbol
*sym
);
340 static void add_matching_symbols_to_info (const char *name
,
341 struct collect_info
*info
,
342 struct program_space
*pspace
);
344 static void add_all_symbol_names_from_pspace (struct collect_info
*info
,
345 struct program_space
*pspace
,
346 VEC (const_char_ptr
) *names
);
348 static VEC (symtab_ptr
) *collect_symtabs_from_filename (const char *file
);
350 static void decode_digits_ordinary (struct linespec_state
*self
,
353 struct symtabs_and_lines
*sals
,
354 struct linetable_entry
**best_entry
);
356 static void decode_digits_list_mode (struct linespec_state
*self
,
358 struct symtabs_and_lines
*values
,
359 struct symtab_and_line val
);
361 static void minsym_found (struct linespec_state
*self
, struct objfile
*objfile
,
362 struct minimal_symbol
*msymbol
,
363 struct symtabs_and_lines
*result
);
365 static int compare_symbols (const void *a
, const void *b
);
367 static int compare_msymbols (const void *a
, const void *b
);
369 static const char *find_toplevel_char (const char *s
, char c
);
371 /* Permitted quote characters for the parser. This is different from the
372 completer's quote characters to allow backward compatibility with the
374 static const char *const linespec_quote_characters
= "\"\'";
376 /* Lexer functions. */
378 /* Lex a number from the input in PARSER. This only supports
381 Return true if input is decimal numbers. Return false if not. */
384 linespec_lexer_lex_number (linespec_parser
*parser
, linespec_token
*tokenp
)
386 tokenp
->type
= LSTOKEN_NUMBER
;
387 LS_TOKEN_STOKEN (*tokenp
).length
= 0;
388 LS_TOKEN_STOKEN (*tokenp
).ptr
= PARSER_STREAM (parser
);
390 /* Keep any sign at the start of the stream. */
391 if (*PARSER_STREAM (parser
) == '+' || *PARSER_STREAM (parser
) == '-')
393 ++LS_TOKEN_STOKEN (*tokenp
).length
;
394 ++(PARSER_STREAM (parser
));
397 while (isdigit (*PARSER_STREAM (parser
)))
399 ++LS_TOKEN_STOKEN (*tokenp
).length
;
400 ++(PARSER_STREAM (parser
));
403 /* If the next character in the input buffer is not a space, comma,
404 quote, or colon, this input does not represent a number. */
405 if (*PARSER_STREAM (parser
) != '\0'
406 && !isspace (*PARSER_STREAM (parser
)) && *PARSER_STREAM (parser
) != ','
407 && *PARSER_STREAM (parser
) != ':'
408 && !strchr (linespec_quote_characters
, *PARSER_STREAM (parser
)))
410 PARSER_STREAM (parser
) = LS_TOKEN_STOKEN (*tokenp
).ptr
;
417 /* Does P represent one of the keywords? If so, return
418 the keyword. If not, return NULL. */
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. */
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
, linespec_p ls
)
1791 /* If canonicalization was not requested, no need to do anything. */
1792 if (!state
->canonical
)
1795 /* Shortcut expressions, which can only appear by themselves. */
1796 if (ls
->expression
!= NULL
)
1797 state
->canonical
->addr_string
= xstrdup (ls
->expression
);
1800 struct ui_file
*buf
;
1803 buf
= mem_fileopen ();
1804 if (ls
->source_filename
)
1806 fputs_unfiltered (ls
->source_filename
, buf
);
1810 if (ls
->function_name
)
1813 fputc_unfiltered (':', buf
);
1814 fputs_unfiltered (ls
->function_name
, buf
);
1821 fputc_unfiltered (':', buf
);
1823 if (ls
->function_name
== NULL
)
1827 /* No function was specified, so add the symbol name. */
1828 gdb_assert (ls
->labels
.function_symbols
!= NULL
1829 && (VEC_length (symbolp
, ls
->labels
.function_symbols
)
1831 s
= VEC_index (symbolp
, ls
->labels
.function_symbols
, 0);
1832 fputs_unfiltered (SYMBOL_NATURAL_NAME (s
), buf
);
1833 fputc_unfiltered (':', buf
);
1836 fputs_unfiltered (ls
->label_name
, buf
);
1838 state
->canonical
->special_display
= 1;
1841 if (ls
->line_offset
.sign
!= LINE_OFFSET_UNKNOWN
)
1844 fputc_unfiltered (':', buf
);
1845 fprintf_filtered (buf
, "%s%d",
1846 (ls
->line_offset
.sign
== LINE_OFFSET_NONE
? ""
1847 : (ls
->line_offset
.sign
1848 == LINE_OFFSET_PLUS
? "+" : "-")),
1849 ls
->line_offset
.offset
);
1852 state
->canonical
->addr_string
= ui_file_xstrdup (buf
, NULL
);
1853 ui_file_delete (buf
);
1857 /* Given a line offset in LS, construct the relevant SALs. */
1859 static struct symtabs_and_lines
1860 create_sals_line_offset (struct linespec_state
*self
,
1863 struct symtabs_and_lines values
;
1864 struct symtab_and_line val
;
1865 int use_default
= 0;
1871 /* This is where we need to make sure we have good defaults.
1872 We must guarantee that this section of code is never executed
1873 when we are called with just a function name, since
1874 set_default_source_symtab_and_line uses
1875 select_source_symtab that calls us with such an argument. */
1877 if (VEC_length (symtab_ptr
, ls
->file_symtabs
) == 1
1878 && VEC_index (symtab_ptr
, ls
->file_symtabs
, 0) == NULL
)
1880 const char *fullname
;
1882 set_current_program_space (self
->program_space
);
1884 /* Make sure we have at least a default source line. */
1885 set_default_source_symtab_and_line ();
1886 initialize_defaults (&self
->default_symtab
, &self
->default_line
);
1887 fullname
= symtab_to_fullname (self
->default_symtab
);
1888 VEC_pop (symtab_ptr
, ls
->file_symtabs
);
1889 VEC_free (symtab_ptr
, ls
->file_symtabs
);
1890 ls
->file_symtabs
= collect_symtabs_from_filename (fullname
);
1894 val
.line
= ls
->line_offset
.offset
;
1895 switch (ls
->line_offset
.sign
)
1897 case LINE_OFFSET_PLUS
:
1898 if (ls
->line_offset
.offset
== 0)
1901 val
.line
= self
->default_line
+ val
.line
;
1904 case LINE_OFFSET_MINUS
:
1905 if (ls
->line_offset
.offset
== 0)
1908 val
.line
= self
->default_line
- val
.line
;
1910 val
.line
= -val
.line
;
1913 case LINE_OFFSET_NONE
:
1914 break; /* No need to adjust val.line. */
1917 if (self
->list_mode
)
1918 decode_digits_list_mode (self
, ls
, &values
, val
);
1921 struct linetable_entry
*best_entry
= NULL
;
1923 const struct block
**blocks
;
1924 struct cleanup
*cleanup
;
1925 struct symtabs_and_lines intermediate_results
;
1928 intermediate_results
.sals
= NULL
;
1929 intermediate_results
.nelts
= 0;
1931 decode_digits_ordinary (self
, ls
, val
.line
, &intermediate_results
,
1933 if (intermediate_results
.nelts
== 0 && best_entry
!= NULL
)
1934 decode_digits_ordinary (self
, ls
, best_entry
->line
,
1935 &intermediate_results
, &best_entry
);
1937 cleanup
= make_cleanup (xfree
, intermediate_results
.sals
);
1939 /* For optimized code, the compiler can scatter one source line
1940 across disjoint ranges of PC values, even when no duplicate
1941 functions or inline functions are involved. For example,
1942 'for (;;)' inside a non-template, non-inline, and non-ctor-or-dtor
1943 function can result in two PC ranges. In this case, we don't
1944 want to set a breakpoint on the first PC of each range. To filter
1945 such cases, we use containing blocks -- for each PC found
1946 above, we see if there are other PCs that are in the same
1947 block. If yes, the other PCs are filtered out. */
1949 filter
= XNEWVEC (int, intermediate_results
.nelts
);
1950 make_cleanup (xfree
, filter
);
1951 blocks
= XNEWVEC (const struct block
*, intermediate_results
.nelts
);
1952 make_cleanup (xfree
, blocks
);
1954 for (i
= 0; i
< intermediate_results
.nelts
; ++i
)
1956 set_current_program_space (intermediate_results
.sals
[i
].pspace
);
1959 blocks
[i
] = block_for_pc_sect (intermediate_results
.sals
[i
].pc
,
1960 intermediate_results
.sals
[i
].section
);
1963 for (i
= 0; i
< intermediate_results
.nelts
; ++i
)
1965 if (blocks
[i
] != NULL
)
1966 for (j
= i
+ 1; j
< intermediate_results
.nelts
; ++j
)
1968 if (blocks
[j
] == blocks
[i
])
1976 for (i
= 0; i
< intermediate_results
.nelts
; ++i
)
1979 struct symbol
*sym
= (blocks
[i
]
1980 ? block_containing_function (blocks
[i
])
1983 if (self
->funfirstline
)
1984 skip_prologue_sal (&intermediate_results
.sals
[i
]);
1985 /* Make sure the line matches the request, not what was
1987 intermediate_results
.sals
[i
].line
= val
.line
;
1988 add_sal_to_sals (self
, &values
, &intermediate_results
.sals
[i
],
1989 sym
? SYMBOL_NATURAL_NAME (sym
) : NULL
, 0);
1992 do_cleanups (cleanup
);
1995 if (values
.nelts
== 0)
1997 if (ls
->source_filename
)
1998 throw_error (NOT_FOUND_ERROR
, _("No line %d in file \"%s\"."),
1999 val
.line
, ls
->source_filename
);
2001 throw_error (NOT_FOUND_ERROR
, _("No line %d in the current file."),
2008 /* Create and return SALs from the linespec LS. */
2010 static struct symtabs_and_lines
2011 convert_linespec_to_sals (struct linespec_state
*state
, linespec_p ls
)
2013 struct symtabs_and_lines sals
= {NULL
, 0};
2015 if (ls
->expression
!= NULL
)
2017 struct symtab_and_line sal
;
2019 /* We have an expression. No other attribute is allowed. */
2020 sal
= find_pc_line (ls
->expr_pc
, 0);
2021 sal
.pc
= ls
->expr_pc
;
2022 sal
.section
= find_pc_overlay (ls
->expr_pc
);
2023 sal
.explicit_pc
= 1;
2024 add_sal_to_sals (state
, &sals
, &sal
, ls
->expression
, 1);
2026 else if (ls
->labels
.label_symbols
!= NULL
)
2028 /* We have just a bunch of functions/methods or labels. */
2030 struct symtab_and_line sal
;
2033 for (i
= 0; VEC_iterate (symbolp
, ls
->labels
.label_symbols
, i
, sym
); ++i
)
2035 struct program_space
*pspace
= SYMTAB_PSPACE (symbol_symtab (sym
));
2037 if (symbol_to_sal (&sal
, state
->funfirstline
, sym
)
2038 && maybe_add_address (state
->addr_set
, pspace
, sal
.pc
))
2039 add_sal_to_sals (state
, &sals
, &sal
,
2040 SYMBOL_NATURAL_NAME (sym
), 0);
2043 else if (ls
->function_symbols
!= NULL
|| ls
->minimal_symbols
!= NULL
)
2045 /* We have just a bunch of functions and/or methods. */
2047 struct symtab_and_line sal
;
2049 bound_minimal_symbol_d
*elem
;
2050 struct program_space
*pspace
;
2052 if (ls
->function_symbols
!= NULL
)
2054 /* Sort symbols so that symbols with the same program space are next
2056 qsort (VEC_address (symbolp
, ls
->function_symbols
),
2057 VEC_length (symbolp
, ls
->function_symbols
),
2058 sizeof (symbolp
), compare_symbols
);
2060 for (i
= 0; VEC_iterate (symbolp
, ls
->function_symbols
, i
, sym
); ++i
)
2062 pspace
= SYMTAB_PSPACE (symbol_symtab (sym
));
2063 set_current_program_space (pspace
);
2064 if (symbol_to_sal (&sal
, state
->funfirstline
, sym
)
2065 && maybe_add_address (state
->addr_set
, pspace
, sal
.pc
))
2066 add_sal_to_sals (state
, &sals
, &sal
,
2067 SYMBOL_NATURAL_NAME (sym
), 0);
2071 if (ls
->minimal_symbols
!= NULL
)
2073 /* Sort minimal symbols by program space, too. */
2074 qsort (VEC_address (bound_minimal_symbol_d
, ls
->minimal_symbols
),
2075 VEC_length (bound_minimal_symbol_d
, ls
->minimal_symbols
),
2076 sizeof (bound_minimal_symbol_d
), compare_msymbols
);
2079 VEC_iterate (bound_minimal_symbol_d
, ls
->minimal_symbols
,
2083 pspace
= elem
->objfile
->pspace
;
2084 set_current_program_space (pspace
);
2085 minsym_found (state
, elem
->objfile
, elem
->minsym
, &sals
);
2089 else if (ls
->line_offset
.sign
!= LINE_OFFSET_UNKNOWN
)
2091 /* Only an offset was specified. */
2092 sals
= create_sals_line_offset (state
, ls
);
2094 /* Make sure we have a filename for canonicalization. */
2095 if (ls
->source_filename
== NULL
)
2097 const char *fullname
= symtab_to_fullname (state
->default_symtab
);
2099 /* It may be more appropriate to keep DEFAULT_SYMTAB in its symtab
2100 form so that displaying SOURCE_FILENAME can follow the current
2101 FILENAME_DISPLAY_STRING setting. But as it is used only rarely
2102 it has been kept for code simplicity only in absolute form. */
2103 ls
->source_filename
= xstrdup (fullname
);
2108 /* We haven't found any results... */
2112 canonicalize_linespec (state
, ls
);
2114 if (sals
.nelts
> 0 && state
->canonical
!= NULL
)
2115 state
->canonical
->pre_expanded
= 1;
2120 /* Parse a string that specifies a linespec.
2121 Pass the address of a char * variable; that variable will be
2122 advanced over the characters actually parsed.
2124 The basic grammar of linespecs:
2126 linespec -> expr_spec | var_spec | basic_spec
2127 expr_spec -> '*' STRING
2128 var_spec -> '$' (STRING | NUMBER)
2130 basic_spec -> file_offset_spec | function_spec | label_spec
2131 file_offset_spec -> opt_file_spec offset_spec
2132 function_spec -> opt_file_spec function_name_spec opt_label_spec
2133 label_spec -> label_name_spec
2135 opt_file_spec -> "" | file_name_spec ':'
2136 opt_label_spec -> "" | ':' label_name_spec
2138 file_name_spec -> STRING
2139 function_name_spec -> STRING
2140 label_name_spec -> STRING
2141 function_name_spec -> STRING
2142 offset_spec -> NUMBER
2146 This may all be followed by several keywords such as "if EXPR",
2149 A comma will terminate parsing.
2151 The function may be an undebuggable function found in minimal symbol table.
2153 If the argument FUNFIRSTLINE is nonzero, we want the first line
2154 of real code inside a function when a function is specified, and it is
2155 not OK to specify a variable or type to get its line number.
2157 DEFAULT_SYMTAB specifies the file to use if none is specified.
2158 It defaults to current_source_symtab.
2159 DEFAULT_LINE specifies the line number to use for relative
2160 line numbers (that start with signs). Defaults to current_source_line.
2161 If CANONICAL is non-NULL, store an array of strings containing the canonical
2162 line specs there if necessary. Currently overloaded member functions and
2163 line numbers or static functions without a filename yield a canonical
2164 line spec. The array and the line spec strings are allocated on the heap,
2165 it is the callers responsibility to free them.
2167 Note that it is possible to return zero for the symtab
2168 if no file is validly specified. Callers must check that.
2169 Also, the line number returned may be invalid. */
2171 /* Parse the linespec in ARGPTR. */
2173 static struct symtabs_and_lines
2174 parse_linespec (linespec_parser
*parser
, const char **argptr
)
2176 linespec_token token
;
2177 struct symtabs_and_lines values
;
2178 struct gdb_exception file_exception
= exception_none
;
2179 struct cleanup
*cleanup
;
2181 /* A special case to start. It has become quite popular for
2182 IDEs to work around bugs in the previous parser by quoting
2183 the entire linespec, so we attempt to deal with this nicely. */
2184 parser
->is_quote_enclosed
= 0;
2185 if (!is_ada_operator (*argptr
)
2186 && strchr (linespec_quote_characters
, **argptr
) != NULL
)
2190 end
= skip_quote_char (*argptr
+ 1, **argptr
);
2191 if (end
!= NULL
&& is_closing_quote_enclosed (end
))
2193 /* Here's the special case. Skip ARGPTR past the initial
2196 parser
->is_quote_enclosed
= 1;
2200 parser
->lexer
.saved_arg
= *argptr
;
2201 parser
->lexer
.stream
= argptr
;
2203 /* Initialize the default symtab and line offset. */
2204 initialize_defaults (&PARSER_STATE (parser
)->default_symtab
,
2205 &PARSER_STATE (parser
)->default_line
);
2207 /* Objective-C shortcut. */
2208 values
= decode_objc (PARSER_STATE (parser
), PARSER_RESULT (parser
), argptr
);
2209 if (values
.sals
!= NULL
)
2212 /* Start parsing. */
2214 /* Get the first token. */
2215 token
= linespec_lexer_lex_one (parser
);
2217 /* It must be either LSTOKEN_STRING or LSTOKEN_NUMBER. */
2218 if (token
.type
== LSTOKEN_STRING
&& *LS_TOKEN_STOKEN (token
).ptr
== '*')
2223 /* User specified an expression, *EXPR. */
2224 copy
= expr
= copy_token_string (token
);
2225 cleanup
= make_cleanup (xfree
, expr
);
2226 PARSER_RESULT (parser
)->expr_pc
= linespec_expression_to_pc (©
);
2227 discard_cleanups (cleanup
);
2228 PARSER_RESULT (parser
)->expression
= expr
;
2230 /* This is a little hacky/tricky. If linespec_expression_to_pc
2231 did not evaluate the entire token, then we must find the
2232 string COPY inside the original token buffer. */
2235 PARSER_STREAM (parser
) = strstr (parser
->lexer
.saved_arg
, copy
);
2236 gdb_assert (PARSER_STREAM (parser
) != NULL
);
2239 /* Consume the token. */
2240 linespec_lexer_consume_token (parser
);
2242 goto convert_to_sals
;
2244 else if (token
.type
== LSTOKEN_STRING
&& *LS_TOKEN_STOKEN (token
).ptr
== '$')
2248 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2249 VEC_safe_push (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
, NULL
);
2251 /* User specified a convenience variable or history value. */
2252 var
= copy_token_string (token
);
2253 cleanup
= make_cleanup (xfree
, var
);
2254 PARSER_RESULT (parser
)->line_offset
2255 = linespec_parse_variable (PARSER_STATE (parser
), var
);
2256 do_cleanups (cleanup
);
2258 /* If a line_offset wasn't found (VAR is the name of a user
2259 variable/function), then skip to normal symbol processing. */
2260 if (PARSER_RESULT (parser
)->line_offset
.sign
!= LINE_OFFSET_UNKNOWN
)
2262 /* Consume this token. */
2263 linespec_lexer_consume_token (parser
);
2265 goto convert_to_sals
;
2268 else if (token
.type
!= LSTOKEN_STRING
&& token
.type
!= LSTOKEN_NUMBER
)
2269 unexpected_linespec_error (parser
);
2271 /* Shortcut: If the next token is not LSTOKEN_COLON, we know that
2272 this token cannot represent a filename. */
2273 token
= linespec_lexer_peek_token (parser
);
2275 if (token
.type
== LSTOKEN_COLON
)
2277 char *user_filename
;
2279 /* Get the current token again and extract the filename. */
2280 token
= linespec_lexer_lex_one (parser
);
2281 user_filename
= copy_token_string (token
);
2283 /* Check if the input is a filename. */
2286 PARSER_RESULT (parser
)->file_symtabs
2287 = symtabs_from_filename (user_filename
);
2289 CATCH (ex
, RETURN_MASK_ERROR
)
2291 file_exception
= ex
;
2295 if (file_exception
.reason
>= 0)
2297 /* Symtabs were found for the file. Record the filename. */
2298 PARSER_RESULT (parser
)->source_filename
= user_filename
;
2300 /* Get the next token. */
2301 token
= linespec_lexer_consume_token (parser
);
2303 /* This is LSTOKEN_COLON; consume it. */
2304 linespec_lexer_consume_token (parser
);
2308 /* No symtabs found -- discard user_filename. */
2309 xfree (user_filename
);
2311 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2312 VEC_safe_push (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
, NULL
);
2315 /* If the next token is not EOI, KEYWORD, or COMMA, issue an error. */
2316 else if (token
.type
!= LSTOKEN_EOI
&& token
.type
!= LSTOKEN_KEYWORD
2317 && token
.type
!= LSTOKEN_COMMA
)
2319 /* TOKEN is the _next_ token, not the one currently in the parser.
2320 Consuming the token will give the correct error message. */
2321 linespec_lexer_consume_token (parser
);
2322 unexpected_linespec_error (parser
);
2326 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2327 VEC_safe_push (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
, NULL
);
2330 /* Parse the rest of the linespec. */
2331 linespec_parse_basic (parser
);
2333 if (PARSER_RESULT (parser
)->function_symbols
== NULL
2334 && PARSER_RESULT (parser
)->labels
.label_symbols
== NULL
2335 && PARSER_RESULT (parser
)->line_offset
.sign
== LINE_OFFSET_UNKNOWN
2336 && PARSER_RESULT (parser
)->minimal_symbols
== NULL
)
2338 /* The linespec didn't parse. Re-throw the file exception if
2340 if (file_exception
.reason
< 0)
2341 throw_exception (file_exception
);
2343 /* Otherwise, the symbol is not found. */
2344 symbol_not_found_error (PARSER_RESULT (parser
)->function_name
,
2345 PARSER_RESULT (parser
)->source_filename
);
2350 /* Get the last token and record how much of the input was parsed,
2352 token
= linespec_lexer_lex_one (parser
);
2353 if (token
.type
!= LSTOKEN_EOI
&& token
.type
!= LSTOKEN_KEYWORD
)
2354 PARSER_STREAM (parser
) = LS_TOKEN_STOKEN (token
).ptr
;
2356 /* Convert the data in PARSER_RESULT to SALs. */
2357 values
= convert_linespec_to_sals (PARSER_STATE (parser
),
2358 PARSER_RESULT (parser
));
2364 /* A constructor for linespec_state. */
2367 linespec_state_constructor (struct linespec_state
*self
,
2368 int flags
, const struct language_defn
*language
,
2369 struct symtab
*default_symtab
,
2371 struct linespec_result
*canonical
)
2373 memset (self
, 0, sizeof (*self
));
2374 self
->language
= language
;
2375 self
->funfirstline
= (flags
& DECODE_LINE_FUNFIRSTLINE
) ? 1 : 0;
2376 self
->list_mode
= (flags
& DECODE_LINE_LIST_MODE
) ? 1 : 0;
2377 self
->default_symtab
= default_symtab
;
2378 self
->default_line
= default_line
;
2379 self
->canonical
= canonical
;
2380 self
->program_space
= current_program_space
;
2381 self
->addr_set
= htab_create_alloc (10, hash_address_entry
, eq_address_entry
,
2382 xfree
, xcalloc
, xfree
);
2385 /* Initialize a new linespec parser. */
2388 linespec_parser_new (linespec_parser
*parser
,
2389 int flags
, const struct language_defn
*language
,
2390 struct symtab
*default_symtab
,
2392 struct linespec_result
*canonical
)
2394 parser
->lexer
.current
.type
= LSTOKEN_CONSUMED
;
2395 memset (PARSER_RESULT (parser
), 0, sizeof (struct linespec
));
2396 PARSER_RESULT (parser
)->line_offset
.sign
= LINE_OFFSET_UNKNOWN
;
2397 linespec_state_constructor (PARSER_STATE (parser
), flags
, language
,
2398 default_symtab
, default_line
, canonical
);
2401 /* A destructor for linespec_state. */
2404 linespec_state_destructor (struct linespec_state
*self
)
2406 htab_delete (self
->addr_set
);
2409 /* Delete a linespec parser. */
2412 linespec_parser_delete (void *arg
)
2414 linespec_parser
*parser
= (linespec_parser
*) arg
;
2416 xfree ((char *) PARSER_RESULT (parser
)->expression
);
2417 xfree ((char *) PARSER_RESULT (parser
)->source_filename
);
2418 xfree ((char *) PARSER_RESULT (parser
)->label_name
);
2419 xfree ((char *) PARSER_RESULT (parser
)->function_name
);
2421 if (PARSER_RESULT (parser
)->file_symtabs
!= NULL
)
2422 VEC_free (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
);
2424 if (PARSER_RESULT (parser
)->function_symbols
!= NULL
)
2425 VEC_free (symbolp
, PARSER_RESULT (parser
)->function_symbols
);
2427 if (PARSER_RESULT (parser
)->minimal_symbols
!= NULL
)
2428 VEC_free (bound_minimal_symbol_d
, PARSER_RESULT (parser
)->minimal_symbols
);
2430 if (PARSER_RESULT (parser
)->labels
.label_symbols
!= NULL
)
2431 VEC_free (symbolp
, PARSER_RESULT (parser
)->labels
.label_symbols
);
2433 if (PARSER_RESULT (parser
)->labels
.function_symbols
!= NULL
)
2434 VEC_free (symbolp
, PARSER_RESULT (parser
)->labels
.function_symbols
);
2436 linespec_state_destructor (PARSER_STATE (parser
));
2439 /* See linespec.h. */
2442 decode_line_full (char **argptr
, int flags
,
2443 struct symtab
*default_symtab
,
2444 int default_line
, struct linespec_result
*canonical
,
2445 const char *select_mode
,
2448 struct symtabs_and_lines result
;
2449 struct cleanup
*cleanups
;
2450 VEC (const_char_ptr
) *filters
= NULL
;
2451 linespec_parser parser
;
2452 struct linespec_state
*state
;
2453 const char *copy
, *orig
;
2455 gdb_assert (canonical
!= NULL
);
2456 /* The filter only makes sense for 'all'. */
2457 gdb_assert (filter
== NULL
|| select_mode
== multiple_symbols_all
);
2458 gdb_assert (select_mode
== NULL
2459 || select_mode
== multiple_symbols_all
2460 || select_mode
== multiple_symbols_ask
2461 || select_mode
== multiple_symbols_cancel
);
2462 gdb_assert ((flags
& DECODE_LINE_LIST_MODE
) == 0);
2464 linespec_parser_new (&parser
, flags
, current_language
, default_symtab
,
2465 default_line
, canonical
);
2466 cleanups
= make_cleanup (linespec_parser_delete
, &parser
);
2467 save_current_program_space ();
2469 orig
= copy
= *argptr
;
2470 result
= parse_linespec (&parser
, ©
);
2471 *argptr
+= copy
- orig
;
2472 state
= PARSER_STATE (&parser
);
2474 gdb_assert (result
.nelts
== 1 || canonical
->pre_expanded
);
2475 gdb_assert (canonical
->addr_string
!= NULL
);
2476 canonical
->pre_expanded
= 1;
2478 /* Arrange for allocated canonical names to be freed. */
2479 if (result
.nelts
> 0)
2483 make_cleanup (xfree
, state
->canonical_names
);
2484 for (i
= 0; i
< result
.nelts
; ++i
)
2486 gdb_assert (state
->canonical_names
[i
].suffix
!= NULL
);
2487 make_cleanup (xfree
, state
->canonical_names
[i
].suffix
);
2491 if (select_mode
== NULL
)
2493 if (ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ())))
2494 select_mode
= multiple_symbols_all
;
2496 select_mode
= multiple_symbols_select_mode ();
2499 if (select_mode
== multiple_symbols_all
)
2503 make_cleanup (VEC_cleanup (const_char_ptr
), &filters
);
2504 VEC_safe_push (const_char_ptr
, filters
, filter
);
2505 filter_results (state
, &result
, filters
);
2508 convert_results_to_lsals (state
, &result
);
2511 decode_line_2 (state
, &result
, select_mode
);
2513 do_cleanups (cleanups
);
2516 /* See linespec.h. */
2518 struct symtabs_and_lines
2519 decode_line_1 (char **argptr
, int flags
,
2520 struct symtab
*default_symtab
,
2523 struct symtabs_and_lines result
;
2524 linespec_parser parser
;
2525 struct cleanup
*cleanups
;
2526 const char *copy
, *orig
;
2528 linespec_parser_new (&parser
, flags
, current_language
, default_symtab
,
2529 default_line
, NULL
);
2530 cleanups
= make_cleanup (linespec_parser_delete
, &parser
);
2531 save_current_program_space ();
2533 orig
= copy
= *argptr
;
2534 result
= parse_linespec (&parser
, ©
);
2535 *argptr
+= copy
- orig
;
2537 do_cleanups (cleanups
);
2541 /* See linespec.h. */
2543 struct symtabs_and_lines
2544 decode_line_with_current_source (char *string
, int flags
)
2546 struct symtabs_and_lines sals
;
2547 struct symtab_and_line cursal
;
2550 error (_("Empty line specification."));
2552 /* We use whatever is set as the current source line. We do not try
2553 and get a default source symtab+line or it will recursively call us! */
2554 cursal
= get_current_source_symtab_and_line ();
2556 sals
= decode_line_1 (&string
, flags
,
2557 cursal
.symtab
, cursal
.line
);
2560 error (_("Junk at end of line specification: %s"), string
);
2564 /* See linespec.h. */
2566 struct symtabs_and_lines
2567 decode_line_with_last_displayed (char *string
, int flags
)
2569 struct symtabs_and_lines sals
;
2572 error (_("Empty line specification."));
2574 if (last_displayed_sal_is_valid ())
2575 sals
= decode_line_1 (&string
, flags
,
2576 get_last_displayed_symtab (),
2577 get_last_displayed_line ());
2579 sals
= decode_line_1 (&string
, flags
, (struct symtab
*) NULL
, 0);
2582 error (_("Junk at end of line specification: %s"), string
);
2588 /* First, some functions to initialize stuff at the beggining of the
2592 initialize_defaults (struct symtab
**default_symtab
, int *default_line
)
2594 if (*default_symtab
== 0)
2596 /* Use whatever we have for the default source line. We don't use
2597 get_current_or_default_symtab_and_line as it can recurse and call
2599 struct symtab_and_line cursal
=
2600 get_current_source_symtab_and_line ();
2602 *default_symtab
= cursal
.symtab
;
2603 *default_line
= cursal
.line
;
2609 /* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR,
2610 advancing EXP_PTR past any parsed text. */
2613 linespec_expression_to_pc (const char **exp_ptr
)
2615 if (current_program_space
->executing_startup
)
2616 /* The error message doesn't really matter, because this case
2617 should only hit during breakpoint reset. */
2618 throw_error (NOT_FOUND_ERROR
, _("cannot evaluate expressions while "
2619 "program space is in startup"));
2622 return value_as_address (parse_to_comma_and_eval (exp_ptr
));
2627 /* Here's where we recognise an Objective-C Selector. An Objective C
2628 selector may be implemented by more than one class, therefore it
2629 may represent more than one method/function. This gives us a
2630 situation somewhat analogous to C++ overloading. If there's more
2631 than one method that could represent the selector, then use some of
2632 the existing C++ code to let the user choose one. */
2634 static struct symtabs_and_lines
2635 decode_objc (struct linespec_state
*self
, linespec_p ls
, const char **argptr
)
2637 struct collect_info info
;
2638 VEC (const_char_ptr
) *symbol_names
= NULL
;
2639 struct symtabs_and_lines values
;
2640 const char *new_argptr
;
2641 struct cleanup
*cleanup
= make_cleanup (VEC_cleanup (const_char_ptr
),
2645 info
.file_symtabs
= NULL
;
2646 VEC_safe_push (symtab_ptr
, info
.file_symtabs
, NULL
);
2647 make_cleanup (VEC_cleanup (symtab_ptr
), &info
.file_symtabs
);
2648 info
.result
.symbols
= NULL
;
2649 info
.result
.minimal_symbols
= NULL
;
2653 new_argptr
= find_imps (*argptr
, &symbol_names
);
2654 if (VEC_empty (const_char_ptr
, symbol_names
))
2656 do_cleanups (cleanup
);
2660 add_all_symbol_names_from_pspace (&info
, NULL
, symbol_names
);
2662 if (!VEC_empty (symbolp
, info
.result
.symbols
)
2663 || !VEC_empty (bound_minimal_symbol_d
, info
.result
.minimal_symbols
))
2667 saved_arg
= alloca (new_argptr
- *argptr
+ 1);
2668 memcpy (saved_arg
, *argptr
, new_argptr
- *argptr
);
2669 saved_arg
[new_argptr
- *argptr
] = '\0';
2671 ls
->function_name
= xstrdup (saved_arg
);
2672 ls
->function_symbols
= info
.result
.symbols
;
2673 ls
->minimal_symbols
= info
.result
.minimal_symbols
;
2674 values
= convert_linespec_to_sals (self
, ls
);
2676 if (self
->canonical
)
2678 self
->canonical
->pre_expanded
= 1;
2679 if (ls
->source_filename
)
2680 self
->canonical
->addr_string
2681 = xstrprintf ("%s:%s", ls
->source_filename
, saved_arg
);
2683 self
->canonical
->addr_string
= xstrdup (saved_arg
);
2687 *argptr
= new_argptr
;
2689 do_cleanups (cleanup
);
2694 /* An instance of this type is used when collecting prefix symbols for
2697 struct decode_compound_collector
2699 /* The result vector. */
2700 VEC (symbolp
) *symbols
;
2702 /* A hash table of all symbols we found. We use this to avoid
2703 adding any symbol more than once. */
2707 /* A callback for iterate_over_symbols that is used by
2708 lookup_prefix_sym to collect type symbols. */
2711 collect_one_symbol (struct symbol
*sym
, void *d
)
2713 struct decode_compound_collector
*collector
= d
;
2717 if (SYMBOL_CLASS (sym
) != LOC_TYPEDEF
)
2718 return 1; /* Continue iterating. */
2720 t
= SYMBOL_TYPE (sym
);
2722 if (TYPE_CODE (t
) != TYPE_CODE_STRUCT
2723 && TYPE_CODE (t
) != TYPE_CODE_UNION
2724 && TYPE_CODE (t
) != TYPE_CODE_NAMESPACE
)
2725 return 1; /* Continue iterating. */
2727 slot
= htab_find_slot (collector
->unique_syms
, sym
, INSERT
);
2731 VEC_safe_push (symbolp
, collector
->symbols
, sym
);
2734 return 1; /* Continue iterating. */
2737 /* Return any symbols corresponding to CLASS_NAME in FILE_SYMTABS. */
2739 static VEC (symbolp
) *
2740 lookup_prefix_sym (struct linespec_state
*state
, VEC (symtab_ptr
) *file_symtabs
,
2741 const char *class_name
)
2745 struct decode_compound_collector collector
;
2746 struct cleanup
*outer
;
2747 struct cleanup
*cleanup
;
2749 collector
.symbols
= NULL
;
2750 outer
= make_cleanup (VEC_cleanup (symbolp
), &collector
.symbols
);
2752 collector
.unique_syms
= htab_create_alloc (1, htab_hash_pointer
,
2753 htab_eq_pointer
, NULL
,
2755 cleanup
= make_cleanup_htab_delete (collector
.unique_syms
);
2757 for (ix
= 0; VEC_iterate (symtab_ptr
, file_symtabs
, ix
, elt
); ++ix
)
2761 iterate_over_all_matching_symtabs (state
, class_name
, STRUCT_DOMAIN
,
2762 collect_one_symbol
, &collector
,
2764 iterate_over_all_matching_symtabs (state
, class_name
, VAR_DOMAIN
,
2765 collect_one_symbol
, &collector
,
2770 /* Program spaces that are executing startup should have
2771 been filtered out earlier. */
2772 gdb_assert (!SYMTAB_PSPACE (elt
)->executing_startup
);
2773 set_current_program_space (SYMTAB_PSPACE (elt
));
2774 iterate_over_file_blocks (elt
, class_name
, STRUCT_DOMAIN
,
2775 collect_one_symbol
, &collector
);
2776 iterate_over_file_blocks (elt
, class_name
, VAR_DOMAIN
,
2777 collect_one_symbol
, &collector
);
2781 do_cleanups (cleanup
);
2782 discard_cleanups (outer
);
2783 return collector
.symbols
;
2786 /* A qsort comparison function for symbols. The resulting order does
2787 not actually matter; we just need to be able to sort them so that
2788 symbols with the same program space end up next to each other. */
2791 compare_symbols (const void *a
, const void *b
)
2793 struct symbol
* const *sa
= a
;
2794 struct symbol
* const *sb
= b
;
2797 uia
= (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sa
));
2798 uib
= (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sb
));
2805 uia
= (uintptr_t) *sa
;
2806 uib
= (uintptr_t) *sb
;
2816 /* Like compare_symbols but for minimal symbols. */
2819 compare_msymbols (const void *a
, const void *b
)
2821 const struct bound_minimal_symbol
*sa
= a
;
2822 const struct bound_minimal_symbol
*sb
= b
;
2825 uia
= (uintptr_t) sa
->objfile
->pspace
;
2826 uib
= (uintptr_t) sa
->objfile
->pspace
;
2833 uia
= (uintptr_t) sa
->minsym
;
2834 uib
= (uintptr_t) sb
->minsym
;
2844 /* Look for all the matching instances of each symbol in NAMES. Only
2845 instances from PSPACE are considered; other program spaces are
2846 handled by our caller. If PSPACE is NULL, then all program spaces
2847 are considered. Results are stored into INFO. */
2850 add_all_symbol_names_from_pspace (struct collect_info
*info
,
2851 struct program_space
*pspace
,
2852 VEC (const_char_ptr
) *names
)
2857 for (ix
= 0; VEC_iterate (const_char_ptr
, names
, ix
, iter
); ++ix
)
2858 add_matching_symbols_to_info (iter
, info
, pspace
);
2862 find_superclass_methods (VEC (typep
) *superclasses
,
2864 VEC (const_char_ptr
) **result_names
)
2866 int old_len
= VEC_length (const_char_ptr
, *result_names
);
2867 VEC (typep
) *iter_classes
;
2868 struct cleanup
*cleanup
= make_cleanup (null_cleanup
, NULL
);
2870 iter_classes
= superclasses
;
2873 VEC (typep
) *new_supers
= NULL
;
2877 make_cleanup (VEC_cleanup (typep
), &new_supers
);
2878 for (ix
= 0; VEC_iterate (typep
, iter_classes
, ix
, t
); ++ix
)
2879 find_methods (t
, name
, result_names
, &new_supers
);
2881 if (VEC_length (const_char_ptr
, *result_names
) != old_len
2882 || VEC_empty (typep
, new_supers
))
2885 iter_classes
= new_supers
;
2888 do_cleanups (cleanup
);
2891 /* This finds the method METHOD_NAME in the class CLASS_NAME whose type is
2892 given by one of the symbols in SYM_CLASSES. Matches are returned
2893 in SYMBOLS (for debug symbols) and MINSYMS (for minimal symbols). */
2896 find_method (struct linespec_state
*self
, VEC (symtab_ptr
) *file_symtabs
,
2897 const char *class_name
, const char *method_name
,
2898 VEC (symbolp
) *sym_classes
, VEC (symbolp
) **symbols
,
2899 VEC (bound_minimal_symbol_d
) **minsyms
)
2902 struct cleanup
*cleanup
= make_cleanup (null_cleanup
, NULL
);
2904 int last_result_len
;
2905 VEC (typep
) *superclass_vec
;
2906 VEC (const_char_ptr
) *result_names
;
2907 struct collect_info info
;
2909 /* Sort symbols so that symbols with the same program space are next
2911 qsort (VEC_address (symbolp
, sym_classes
),
2912 VEC_length (symbolp
, sym_classes
),
2917 info
.file_symtabs
= file_symtabs
;
2918 info
.result
.symbols
= NULL
;
2919 info
.result
.minimal_symbols
= NULL
;
2921 /* Iterate over all the types, looking for the names of existing
2922 methods matching METHOD_NAME. If we cannot find a direct method in a
2923 given program space, then we consider inherited methods; this is
2924 not ideal (ideal would be to respect C++ hiding rules), but it
2925 seems good enough and is what GDB has historically done. We only
2926 need to collect the names because later we find all symbols with
2927 those names. This loop is written in a somewhat funny way
2928 because we collect data across the program space before deciding
2930 superclass_vec
= NULL
;
2931 make_cleanup (VEC_cleanup (typep
), &superclass_vec
);
2932 result_names
= NULL
;
2933 make_cleanup (VEC_cleanup (const_char_ptr
), &result_names
);
2934 last_result_len
= 0;
2935 for (ix
= 0; VEC_iterate (symbolp
, sym_classes
, ix
, sym
); ++ix
)
2938 struct program_space
*pspace
;
2940 /* Program spaces that are executing startup should have
2941 been filtered out earlier. */
2942 pspace
= SYMTAB_PSPACE (symbol_symtab (sym
));
2943 gdb_assert (!pspace
->executing_startup
);
2944 set_current_program_space (pspace
);
2945 t
= check_typedef (SYMBOL_TYPE (sym
));
2946 find_methods (t
, method_name
, &result_names
, &superclass_vec
);
2948 /* Handle all items from a single program space at once; and be
2949 sure not to miss the last batch. */
2950 if (ix
== VEC_length (symbolp
, sym_classes
) - 1
2952 != SYMTAB_PSPACE (symbol_symtab (VEC_index (symbolp
, sym_classes
,
2955 /* If we did not find a direct implementation anywhere in
2956 this program space, consider superclasses. */
2957 if (VEC_length (const_char_ptr
, result_names
) == last_result_len
)
2958 find_superclass_methods (superclass_vec
, method_name
,
2961 /* We have a list of candidate symbol names, so now we
2962 iterate over the symbol tables looking for all
2963 matches in this pspace. */
2964 add_all_symbol_names_from_pspace (&info
, pspace
, result_names
);
2966 VEC_truncate (typep
, superclass_vec
, 0);
2967 last_result_len
= VEC_length (const_char_ptr
, result_names
);
2971 if (!VEC_empty (symbolp
, info
.result
.symbols
)
2972 || !VEC_empty (bound_minimal_symbol_d
, info
.result
.minimal_symbols
))
2974 *symbols
= info
.result
.symbols
;
2975 *minsyms
= info
.result
.minimal_symbols
;
2976 do_cleanups (cleanup
);
2980 /* Throw an NOT_FOUND_ERROR. This will be caught by the caller
2981 and other attempts to locate the symbol will be made. */
2982 throw_error (NOT_FOUND_ERROR
, _("see caller, this text doesn't matter"));
2987 /* This object is used when collecting all matching symtabs. */
2989 struct symtab_collector
2991 /* The result vector of symtabs. */
2992 VEC (symtab_ptr
) *symtabs
;
2994 /* This is used to ensure the symtabs are unique. */
2995 htab_t symtab_table
;
2998 /* Callback for iterate_over_symtabs. */
3001 add_symtabs_to_list (struct symtab
*symtab
, void *d
)
3003 struct symtab_collector
*data
= d
;
3006 slot
= htab_find_slot (data
->symtab_table
, symtab
, INSERT
);
3010 VEC_safe_push (symtab_ptr
, data
->symtabs
, symtab
);
3016 /* Given a file name, return a VEC of all matching symtabs. */
3018 static VEC (symtab_ptr
) *
3019 collect_symtabs_from_filename (const char *file
)
3021 struct symtab_collector collector
;
3022 struct cleanup
*cleanups
;
3023 struct program_space
*pspace
;
3025 collector
.symtabs
= NULL
;
3026 collector
.symtab_table
= htab_create (1, htab_hash_pointer
, htab_eq_pointer
,
3028 cleanups
= make_cleanup_htab_delete (collector
.symtab_table
);
3030 /* Find that file's data. */
3031 ALL_PSPACES (pspace
)
3033 if (pspace
->executing_startup
)
3036 set_current_program_space (pspace
);
3037 iterate_over_symtabs (file
, add_symtabs_to_list
, &collector
);
3040 do_cleanups (cleanups
);
3041 return collector
.symtabs
;
3044 /* Return all the symtabs associated to the FILENAME. */
3046 static VEC (symtab_ptr
) *
3047 symtabs_from_filename (const char *filename
)
3049 VEC (symtab_ptr
) *result
;
3051 result
= collect_symtabs_from_filename (filename
);
3053 if (VEC_empty (symtab_ptr
, result
))
3055 if (!have_full_symbols () && !have_partial_symbols ())
3056 throw_error (NOT_FOUND_ERROR
,
3057 _("No symbol table is loaded. "
3058 "Use the \"file\" command."));
3059 throw_error (NOT_FOUND_ERROR
, _("No source file named %s."), filename
);
3065 /* Look up a function symbol named NAME in symtabs FILE_SYMTABS. Matching
3066 debug symbols are returned in SYMBOLS. Matching minimal symbols are
3067 returned in MINSYMS. */
3070 find_function_symbols (struct linespec_state
*state
,
3071 VEC (symtab_ptr
) *file_symtabs
, const char *name
,
3072 VEC (symbolp
) **symbols
,
3073 VEC (bound_minimal_symbol_d
) **minsyms
)
3075 struct collect_info info
;
3076 VEC (const_char_ptr
) *symbol_names
= NULL
;
3077 struct cleanup
*cleanup
= make_cleanup (VEC_cleanup (const_char_ptr
),
3081 info
.result
.symbols
= NULL
;
3082 info
.result
.minimal_symbols
= NULL
;
3083 info
.file_symtabs
= file_symtabs
;
3085 /* Try NAME as an Objective-C selector. */
3086 find_imps (name
, &symbol_names
);
3087 if (!VEC_empty (const_char_ptr
, symbol_names
))
3088 add_all_symbol_names_from_pspace (&info
, NULL
, symbol_names
);
3090 add_matching_symbols_to_info (name
, &info
, NULL
);
3092 do_cleanups (cleanup
);
3094 if (VEC_empty (symbolp
, info
.result
.symbols
))
3096 VEC_free (symbolp
, info
.result
.symbols
);
3100 *symbols
= info
.result
.symbols
;
3102 if (VEC_empty (bound_minimal_symbol_d
, info
.result
.minimal_symbols
))
3104 VEC_free (bound_minimal_symbol_d
, info
.result
.minimal_symbols
);
3108 *minsyms
= info
.result
.minimal_symbols
;
3111 /* Find all symbols named NAME in FILE_SYMTABS, returning debug symbols
3112 in SYMBOLS and minimal symbols in MINSYMS. */
3115 find_linespec_symbols (struct linespec_state
*state
,
3116 VEC (symtab_ptr
) *file_symtabs
,
3118 VEC (symbolp
) **symbols
,
3119 VEC (bound_minimal_symbol_d
) **minsyms
)
3121 struct cleanup
*cleanup
;
3123 const char *lookup_name
;
3125 cleanup
= demangle_for_lookup (name
, state
->language
->la_language
,
3127 if (state
->language
->la_language
== language_ada
)
3129 /* In Ada, the symbol lookups are performed using the encoded
3130 name rather than the demangled name. */
3131 lookup_name
= ada_name_for_lookup (name
);
3132 make_cleanup (xfree
, (void *) lookup_name
);
3135 canon
= cp_canonicalize_string_no_typedefs (lookup_name
);
3138 lookup_name
= canon
;
3139 make_cleanup (xfree
, canon
);
3142 /* It's important to not call expand_symtabs_matching unnecessarily
3143 as it can really slow things down (by unnecessarily expanding
3144 potentially 1000s of symtabs, which when debugging some apps can
3145 cost 100s of seconds). Avoid this to some extent by *first* calling
3146 find_function_symbols, and only if that doesn't find anything
3147 *then* call find_method. This handles two important cases:
3148 1) break (anonymous namespace)::foo
3149 2) break class::method where method is in class (and not a baseclass) */
3151 find_function_symbols (state
, file_symtabs
, lookup_name
,
3154 /* If we were unable to locate a symbol of the same name, try dividing
3155 the name into class and method names and searching the class and its
3157 if (VEC_empty (symbolp
, *symbols
)
3158 && VEC_empty (bound_minimal_symbol_d
, *minsyms
))
3160 char *klass
, *method
;
3161 const char *last
, *p
, *scope_op
;
3162 VEC (symbolp
) *classes
;
3164 /* See if we can find a scope operator and break this symbol
3165 name into namespaces${SCOPE_OPERATOR}class_name and method_name. */
3167 p
= find_toplevel_string (lookup_name
, scope_op
);
3170 /* No C++ scope operator. Try Java. */
3172 p
= find_toplevel_string (lookup_name
, scope_op
);
3179 p
= find_toplevel_string (p
+ strlen (scope_op
), scope_op
);
3182 /* If no scope operator was found, there is nothing more we can do;
3183 we already attempted to lookup the entire name as a symbol
3187 do_cleanups (cleanup
);
3191 /* LOOKUP_NAME points to the class name.
3192 LAST points to the method name. */
3193 klass
= xmalloc ((last
- lookup_name
+ 1) * sizeof (char));
3194 make_cleanup (xfree
, klass
);
3195 strncpy (klass
, lookup_name
, last
- lookup_name
);
3196 klass
[last
- lookup_name
] = '\0';
3198 /* Skip past the scope operator. */
3199 last
+= strlen (scope_op
);
3200 method
= xmalloc ((strlen (last
) + 1) * sizeof (char));
3201 make_cleanup (xfree
, method
);
3202 strcpy (method
, last
);
3204 /* Find a list of classes named KLASS. */
3205 classes
= lookup_prefix_sym (state
, file_symtabs
, klass
);
3206 make_cleanup (VEC_cleanup (symbolp
), &classes
);
3208 if (!VEC_empty (symbolp
, classes
))
3210 /* Now locate a list of suitable methods named METHOD. */
3213 find_method (state
, file_symtabs
, klass
, method
, classes
,
3217 /* If successful, we're done. If NOT_FOUND_ERROR
3218 was not thrown, rethrow the exception that we did get. */
3219 CATCH (except
, RETURN_MASK_ERROR
)
3221 if (except
.error
!= NOT_FOUND_ERROR
)
3222 throw_exception (except
);
3228 do_cleanups (cleanup
);
3231 /* Return all labels named NAME in FUNCTION_SYMBOLS. Return the
3232 actual function symbol in which the label was found in LABEL_FUNC_RET. */
3234 static VEC (symbolp
) *
3235 find_label_symbols (struct linespec_state
*self
,
3236 VEC (symbolp
) *function_symbols
,
3237 VEC (symbolp
) **label_funcs_ret
, const char *name
)
3240 const struct block
*block
;
3242 struct symbol
*fn_sym
;
3243 VEC (symbolp
) *result
= NULL
;
3245 if (function_symbols
== NULL
)
3247 set_current_program_space (self
->program_space
);
3248 block
= get_current_search_block ();
3251 block
&& !BLOCK_FUNCTION (block
);
3252 block
= BLOCK_SUPERBLOCK (block
))
3256 fn_sym
= BLOCK_FUNCTION (block
);
3258 sym
= lookup_symbol (name
, block
, LABEL_DOMAIN
, 0);
3262 VEC_safe_push (symbolp
, result
, sym
);
3263 VEC_safe_push (symbolp
, *label_funcs_ret
, fn_sym
);
3269 VEC_iterate (symbolp
, function_symbols
, ix
, fn_sym
); ++ix
)
3271 set_current_program_space (SYMTAB_PSPACE (symbol_symtab (fn_sym
)));
3272 block
= SYMBOL_BLOCK_VALUE (fn_sym
);
3273 sym
= lookup_symbol (name
, block
, LABEL_DOMAIN
, 0);
3277 VEC_safe_push (symbolp
, result
, sym
);
3278 VEC_safe_push (symbolp
, *label_funcs_ret
, fn_sym
);
3288 /* A helper for create_sals_line_offset that handles the 'list_mode' case. */
3291 decode_digits_list_mode (struct linespec_state
*self
,
3293 struct symtabs_and_lines
*values
,
3294 struct symtab_and_line val
)
3299 gdb_assert (self
->list_mode
);
3301 for (ix
= 0; VEC_iterate (symtab_ptr
, ls
->file_symtabs
, ix
, elt
);
3304 /* The logic above should ensure this. */
3305 gdb_assert (elt
!= NULL
);
3307 set_current_program_space (SYMTAB_PSPACE (elt
));
3309 /* Simplistic search just for the list command. */
3310 val
.symtab
= find_line_symtab (elt
, val
.line
, NULL
, NULL
);
3311 if (val
.symtab
== NULL
)
3313 val
.pspace
= SYMTAB_PSPACE (elt
);
3315 val
.explicit_line
= 1;
3317 add_sal_to_sals (self
, values
, &val
, NULL
, 0);
3321 /* A helper for create_sals_line_offset that iterates over the symtabs,
3322 adding lines to the VEC. */
3325 decode_digits_ordinary (struct linespec_state
*self
,
3328 struct symtabs_and_lines
*sals
,
3329 struct linetable_entry
**best_entry
)
3334 for (ix
= 0; VEC_iterate (symtab_ptr
, ls
->file_symtabs
, ix
, elt
); ++ix
)
3337 VEC (CORE_ADDR
) *pcs
;
3340 /* The logic above should ensure this. */
3341 gdb_assert (elt
!= NULL
);
3343 set_current_program_space (SYMTAB_PSPACE (elt
));
3345 pcs
= find_pcs_for_symtab_line (elt
, line
, best_entry
);
3346 for (i
= 0; VEC_iterate (CORE_ADDR
, pcs
, i
, pc
); ++i
)
3348 struct symtab_and_line sal
;
3351 sal
.pspace
= SYMTAB_PSPACE (elt
);
3355 add_sal_to_sals_basic (sals
, &sal
);
3358 VEC_free (CORE_ADDR
, pcs
);
3364 /* Return the line offset represented by VARIABLE. */
3366 static struct line_offset
3367 linespec_parse_variable (struct linespec_state
*self
, const char *variable
)
3371 struct line_offset offset
= {0, LINE_OFFSET_NONE
};
3373 p
= (variable
[1] == '$') ? variable
+ 2 : variable
+ 1;
3376 while (*p
>= '0' && *p
<= '9')
3378 if (!*p
) /* Reached end of token without hitting non-digit. */
3380 /* We have a value history reference. */
3381 struct value
*val_history
;
3383 sscanf ((variable
[1] == '$') ? variable
+ 2 : variable
+ 1, "%d", &index
);
3385 = access_value_history ((variable
[1] == '$') ? -index
: index
);
3386 if (TYPE_CODE (value_type (val_history
)) != TYPE_CODE_INT
)
3387 error (_("History values used in line "
3388 "specs must have integer values."));
3389 offset
.offset
= value_as_long (val_history
);
3393 /* Not all digits -- may be user variable/function or a
3394 convenience variable. */
3396 struct internalvar
*ivar
;
3398 /* Try it as a convenience variable. If it is not a convenience
3399 variable, return and allow normal symbol lookup to occur. */
3400 ivar
= lookup_only_internalvar (variable
+ 1);
3402 /* No internal variable with that name. Mark the offset
3403 as unknown to allow the name to be looked up as a symbol. */
3404 offset
.sign
= LINE_OFFSET_UNKNOWN
;
3407 /* We found a valid variable name. If it is not an integer,
3409 if (!get_internalvar_integer (ivar
, &valx
))
3410 error (_("Convenience variables used in line "
3411 "specs must have integer values."));
3413 offset
.offset
= valx
;
3421 /* A callback used to possibly add a symbol to the results. */
3424 collect_symbols (struct symbol
*sym
, void *data
)
3426 struct collect_info
*info
= data
;
3428 /* In list mode, add all matching symbols, regardless of class.
3429 This allows the user to type "list a_global_variable". */
3430 if (SYMBOL_CLASS (sym
) == LOC_BLOCK
|| info
->state
->list_mode
)
3431 VEC_safe_push (symbolp
, info
->result
.symbols
, sym
);
3432 return 1; /* Continue iterating. */
3435 /* We've found a minimal symbol MSYMBOL in OBJFILE to associate with our
3436 linespec; return the SAL in RESULT. */
3439 minsym_found (struct linespec_state
*self
, struct objfile
*objfile
,
3440 struct minimal_symbol
*msymbol
,
3441 struct symtabs_and_lines
*result
)
3443 struct gdbarch
*gdbarch
= get_objfile_arch (objfile
);
3445 struct symtab_and_line sal
;
3447 sal
= find_pc_sect_line (MSYMBOL_VALUE_ADDRESS (objfile
, msymbol
),
3448 (struct obj_section
*) 0, 0);
3449 sal
.section
= MSYMBOL_OBJ_SECTION (objfile
, msymbol
);
3451 /* The minimal symbol might point to a function descriptor;
3452 resolve it to the actual code address instead. */
3453 pc
= gdbarch_convert_from_func_ptr_addr (gdbarch
, sal
.pc
, ¤t_target
);
3455 sal
= find_pc_sect_line (pc
, NULL
, 0);
3457 if (self
->funfirstline
)
3458 skip_prologue_sal (&sal
);
3460 if (maybe_add_address (self
->addr_set
, objfile
->pspace
, sal
.pc
))
3461 add_sal_to_sals (self
, result
, &sal
, MSYMBOL_NATURAL_NAME (msymbol
), 0);
3464 /* A helper struct to pass some data through
3465 iterate_over_minimal_symbols. */
3467 struct collect_minsyms
3469 /* The objfile we're examining. */
3470 struct objfile
*objfile
;
3472 /* Only search the given symtab, or NULL to search for all symbols. */
3473 struct symtab
*symtab
;
3475 /* The funfirstline setting from the initial call. */
3478 /* The list_mode setting from the initial call. */
3481 /* The resulting symbols. */
3482 VEC (bound_minimal_symbol_d
) *msyms
;
3485 /* A helper function to classify a minimal_symbol_type according to
3489 classify_mtype (enum minimal_symbol_type t
)
3496 /* Intermediate priority. */
3499 case mst_solib_trampoline
:
3500 /* Lowest priority. */
3504 /* Highest priority. */
3509 /* Callback for qsort that sorts symbols by priority. */
3512 compare_msyms (const void *a
, const void *b
)
3514 const bound_minimal_symbol_d
*moa
= a
;
3515 const bound_minimal_symbol_d
*mob
= b
;
3516 enum minimal_symbol_type ta
= MSYMBOL_TYPE (moa
->minsym
);
3517 enum minimal_symbol_type tb
= MSYMBOL_TYPE (mob
->minsym
);
3519 return classify_mtype (ta
) - classify_mtype (tb
);
3522 /* Callback for iterate_over_minimal_symbols that adds the symbol to
3526 add_minsym (struct minimal_symbol
*minsym
, void *d
)
3528 struct collect_minsyms
*info
= d
;
3529 bound_minimal_symbol_d mo
;
3532 mo
.objfile
= info
->objfile
;
3534 if (info
->symtab
!= NULL
)
3537 struct symtab_and_line sal
;
3538 struct gdbarch
*gdbarch
= get_objfile_arch (info
->objfile
);
3540 sal
= find_pc_sect_line (MSYMBOL_VALUE_ADDRESS (info
->objfile
, minsym
),
3542 sal
.section
= MSYMBOL_OBJ_SECTION (info
->objfile
, minsym
);
3544 = gdbarch_convert_from_func_ptr_addr (gdbarch
, sal
.pc
, ¤t_target
);
3546 sal
= find_pc_sect_line (pc
, NULL
, 0);
3548 if (info
->symtab
!= sal
.symtab
)
3552 /* Exclude data symbols when looking for breakpoint locations. */
3553 if (!info
->list_mode
)
3554 switch (minsym
->type
)
3556 case mst_slot_got_plt
:
3563 /* Make sure this minsym is not a function descriptor
3564 before we decide to discard it. */
3565 struct gdbarch
*gdbarch
= get_objfile_arch (info
->objfile
);
3566 CORE_ADDR addr
= gdbarch_convert_from_func_ptr_addr
3567 (gdbarch
, BMSYMBOL_VALUE_ADDRESS (mo
),
3570 if (addr
== BMSYMBOL_VALUE_ADDRESS (mo
))
3575 VEC_safe_push (bound_minimal_symbol_d
, info
->msyms
, &mo
);
3578 /* Search for minimal symbols called NAME. If SEARCH_PSPACE
3579 is not NULL, the search is restricted to just that program
3582 If SYMTAB is NULL, search all objfiles, otherwise
3583 restrict results to the given SYMTAB. */
3586 search_minsyms_for_name (struct collect_info
*info
, const char *name
,
3587 struct program_space
*search_pspace
,
3588 struct symtab
*symtab
)
3590 struct collect_minsyms local
;
3591 struct cleanup
*cleanup
;
3593 memset (&local
, 0, sizeof (local
));
3594 local
.funfirstline
= info
->state
->funfirstline
;
3595 local
.list_mode
= info
->state
->list_mode
;
3596 local
.symtab
= symtab
;
3598 cleanup
= make_cleanup (VEC_cleanup (bound_minimal_symbol_d
), &local
.msyms
);
3602 struct program_space
*pspace
;
3604 ALL_PSPACES (pspace
)
3606 struct objfile
*objfile
;
3608 if (search_pspace
!= NULL
&& search_pspace
!= pspace
)
3610 if (pspace
->executing_startup
)
3613 set_current_program_space (pspace
);
3615 ALL_OBJFILES (objfile
)
3617 local
.objfile
= objfile
;
3618 iterate_over_minimal_symbols (objfile
, name
, add_minsym
, &local
);
3624 if (search_pspace
== NULL
|| SYMTAB_PSPACE (symtab
) == search_pspace
)
3626 set_current_program_space (SYMTAB_PSPACE (symtab
));
3627 local
.objfile
= SYMTAB_OBJFILE(symtab
);
3628 iterate_over_minimal_symbols (local
.objfile
, name
, add_minsym
,
3633 if (!VEC_empty (bound_minimal_symbol_d
, local
.msyms
))
3637 bound_minimal_symbol_d
*item
;
3639 qsort (VEC_address (bound_minimal_symbol_d
, local
.msyms
),
3640 VEC_length (bound_minimal_symbol_d
, local
.msyms
),
3641 sizeof (bound_minimal_symbol_d
),
3644 /* Now the minsyms are in classification order. So, we walk
3645 over them and process just the minsyms with the same
3646 classification as the very first minsym in the list. */
3647 item
= VEC_index (bound_minimal_symbol_d
, local
.msyms
, 0);
3648 classification
= classify_mtype (MSYMBOL_TYPE (item
->minsym
));
3651 VEC_iterate (bound_minimal_symbol_d
, local
.msyms
, ix
, item
);
3654 if (classify_mtype (MSYMBOL_TYPE (item
->minsym
)) != classification
)
3657 VEC_safe_push (bound_minimal_symbol_d
,
3658 info
->result
.minimal_symbols
, item
);
3662 do_cleanups (cleanup
);
3665 /* A helper function to add all symbols matching NAME to INFO. If
3666 PSPACE is not NULL, the search is restricted to just that program
3670 add_matching_symbols_to_info (const char *name
,
3671 struct collect_info
*info
,
3672 struct program_space
*pspace
)
3677 for (ix
= 0; VEC_iterate (symtab_ptr
, info
->file_symtabs
, ix
, elt
); ++ix
)
3681 iterate_over_all_matching_symtabs (info
->state
, name
, VAR_DOMAIN
,
3682 collect_symbols
, info
,
3684 search_minsyms_for_name (info
, name
, pspace
, NULL
);
3686 else if (pspace
== NULL
|| pspace
== SYMTAB_PSPACE (elt
))
3688 int prev_len
= VEC_length (symbolp
, info
->result
.symbols
);
3690 /* Program spaces that are executing startup should have
3691 been filtered out earlier. */
3692 gdb_assert (!SYMTAB_PSPACE (elt
)->executing_startup
);
3693 set_current_program_space (SYMTAB_PSPACE (elt
));
3694 iterate_over_file_blocks (elt
, name
, VAR_DOMAIN
,
3695 collect_symbols
, info
);
3697 /* If no new symbols were found in this iteration and this symtab
3698 is in assembler, we might actually be looking for a label for
3699 which we don't have debug info. Check for a minimal symbol in
3701 if (prev_len
== VEC_length (symbolp
, info
->result
.symbols
)
3702 && elt
->language
== language_asm
)
3703 search_minsyms_for_name (info
, name
, pspace
, elt
);
3710 /* Now come some functions that are called from multiple places within
3714 symbol_to_sal (struct symtab_and_line
*result
,
3715 int funfirstline
, struct symbol
*sym
)
3717 if (SYMBOL_CLASS (sym
) == LOC_BLOCK
)
3719 *result
= find_function_start_sal (sym
, funfirstline
);
3724 if (SYMBOL_CLASS (sym
) == LOC_LABEL
&& SYMBOL_VALUE_ADDRESS (sym
) != 0)
3727 result
->symtab
= symbol_symtab (sym
);
3728 result
->line
= SYMBOL_LINE (sym
);
3729 result
->pc
= SYMBOL_VALUE_ADDRESS (sym
);
3730 result
->pspace
= SYMTAB_PSPACE (result
->symtab
);
3731 result
->explicit_pc
= 1;
3734 else if (funfirstline
)
3738 else if (SYMBOL_LINE (sym
) != 0)
3740 /* We know its line number. */
3742 result
->symtab
= symbol_symtab (sym
);
3743 result
->line
= SYMBOL_LINE (sym
);
3744 result
->pspace
= SYMTAB_PSPACE (result
->symtab
);
3752 /* See the comment in linespec.h. */
3755 init_linespec_result (struct linespec_result
*lr
)
3757 memset (lr
, 0, sizeof (*lr
));
3760 /* See the comment in linespec.h. */
3763 destroy_linespec_result (struct linespec_result
*ls
)
3766 struct linespec_sals
*lsal
;
3768 xfree (ls
->addr_string
);
3769 for (i
= 0; VEC_iterate (linespec_sals
, ls
->sals
, i
, lsal
); ++i
)
3771 xfree (lsal
->canonical
);
3772 xfree (lsal
->sals
.sals
);
3774 VEC_free (linespec_sals
, ls
->sals
);
3777 /* Cleanup function for a linespec_result. */
3780 cleanup_linespec_result (void *a
)
3782 destroy_linespec_result (a
);
3785 /* See the comment in linespec.h. */
3788 make_cleanup_destroy_linespec_result (struct linespec_result
*ls
)
3790 return make_cleanup (cleanup_linespec_result
, ls
);