1 /* Parser for linespec for the GNU debugger, GDB.
3 Copyright (C) 1986-2016 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
29 #include "completer.h"
31 #include "cp-support.h"
32 #include "parser-defs.h"
34 #include "objc-lang.h"
38 #include "mi/mi-cmds.h"
40 #include "arch-utils.h"
42 #include "cli/cli-utils.h"
43 #include "filenames.h"
48 typedef struct symbol
*symbolp
;
51 typedef struct type
*typep
;
54 /* An address entry is used to ensure that any given location is only
55 added to the result a single time. It holds an address and the
56 program space from which the address came. */
60 struct program_space
*pspace
;
64 typedef struct bound_minimal_symbol bound_minimal_symbol_d
;
66 DEF_VEC_O (bound_minimal_symbol_d
);
68 /* A linespec. Elements of this structure are filled in by a parser
69 (either parse_linespec or some other function). The structure is
70 then converted into SALs by convert_linespec_to_sals. */
74 /* An explicit location describing the SaLs. */
75 struct explicit_location explicit_loc
;
77 /* The list of symtabs to search to which to limit the search. May not
78 be NULL. If explicit.SOURCE_FILENAME is NULL (no user-specified
79 filename), FILE_SYMTABS should contain one single NULL member. This
80 will cause the code to use the default symtab. */
81 VEC (symtab_ptr
) *file_symtabs
;
83 /* A list of matching function symbols and minimal symbols. Both lists
84 may be NULL if no matching symbols were found. */
85 VEC (symbolp
) *function_symbols
;
86 VEC (bound_minimal_symbol_d
) *minimal_symbols
;
88 /* A structure of matching label symbols and the corresponding
89 function symbol in which the label was found. Both may be NULL
90 or both must be non-NULL. */
93 VEC (symbolp
) *label_symbols
;
94 VEC (symbolp
) *function_symbols
;
97 typedef struct linespec
*linespec_p
;
99 /* A canonical linespec represented as a symtab-related string.
101 Each entry represents the "SYMTAB:SUFFIX" linespec string.
102 SYMTAB can be converted for example by symtab_to_fullname or
103 symtab_to_filename_for_display as needed. */
105 struct linespec_canonical_name
107 /* Remaining text part of the linespec string. */
110 /* If NULL then SUFFIX is the whole linespec string. */
111 struct symtab
*symtab
;
114 /* An instance of this is used to keep all state while linespec
115 operates. This instance is passed around as a 'this' pointer to
116 the various implementation methods. */
118 struct linespec_state
120 /* The language in use during linespec processing. */
121 const struct language_defn
*language
;
123 /* The program space as seen when the module was entered. */
124 struct program_space
*program_space
;
126 /* If not NULL, the search is restricted to just this program
128 struct program_space
*search_pspace
;
130 /* The default symtab to use, if no other symtab is specified. */
131 struct symtab
*default_symtab
;
133 /* The default line to use. */
136 /* The 'funfirstline' value that was passed in to decode_line_1 or
140 /* Nonzero if we are running in 'list' mode; see decode_line_list. */
143 /* The 'canonical' value passed to decode_line_full, or NULL. */
144 struct linespec_result
*canonical
;
146 /* Canonical strings that mirror the symtabs_and_lines result. */
147 struct linespec_canonical_name
*canonical_names
;
149 /* This is a set of address_entry objects which is used to prevent
150 duplicate symbols from being entered into the result. */
153 /* Are we building a linespec? */
157 /* This is a helper object that is used when collecting symbols into a
162 /* The linespec object in use. */
163 struct linespec_state
*state
;
165 /* A list of symtabs to which to restrict matches. */
166 VEC (symtab_ptr
) *file_symtabs
;
168 /* The result being accumulated. */
171 VEC (symbolp
) *symbols
;
172 VEC (bound_minimal_symbol_d
) *minimal_symbols
;
183 /* A colon "separator" */
195 /* EOI (end of input) */
201 typedef enum ls_token_type linespec_token_type
;
203 /* List of keywords */
205 static const char * const linespec_keywords
[] = { "if", "thread", "task" };
206 #define IF_KEYWORD_INDEX 0
208 /* A token of the linespec lexer */
212 /* The type of the token */
213 linespec_token_type type
;
215 /* Data for the token */
218 /* A string, given as a stoken */
219 struct stoken string
;
225 typedef struct ls_token linespec_token
;
227 #define LS_TOKEN_STOKEN(TOK) (TOK).data.string
228 #define LS_TOKEN_KEYWORD(TOK) (TOK).data.keyword
230 /* An instance of the linespec parser. */
234 /* Lexer internal data */
237 /* Save head of input stream. */
238 const char *saved_arg
;
240 /* Head of the input stream. */
242 #define PARSER_STREAM(P) ((P)->lexer.stream)
244 /* The current token. */
245 linespec_token current
;
248 /* Is the entire linespec quote-enclosed? */
249 int is_quote_enclosed
;
251 /* The state of the parse. */
252 struct linespec_state state
;
253 #define PARSER_STATE(PPTR) (&(PPTR)->state)
255 /* The result of the parse. */
256 struct linespec result
;
257 #define PARSER_RESULT(PPTR) (&(PPTR)->result)
259 typedef struct ls_parser linespec_parser
;
261 /* A convenience macro for accessing the explicit location result of
263 #define PARSER_EXPLICIT(PPTR) (&PARSER_RESULT ((PPTR))->explicit_loc)
265 /* Prototypes for local functions. */
267 static void iterate_over_file_blocks (struct symtab
*symtab
,
268 const char *name
, domain_enum domain
,
269 symbol_found_callback_ftype
*callback
,
272 static void initialize_defaults (struct symtab
**default_symtab
,
275 CORE_ADDR
linespec_expression_to_pc (const char **exp_ptr
);
277 static struct symtabs_and_lines
decode_objc (struct linespec_state
*self
,
281 static VEC (symtab_ptr
) *symtabs_from_filename (const char *,
282 struct program_space
*pspace
);
284 static VEC (symbolp
) *find_label_symbols (struct linespec_state
*self
,
285 VEC (symbolp
) *function_symbols
,
286 VEC (symbolp
) **label_funcs_ret
,
289 static void find_linespec_symbols (struct linespec_state
*self
,
290 VEC (symtab_ptr
) *file_symtabs
,
292 VEC (symbolp
) **symbols
,
293 VEC (bound_minimal_symbol_d
) **minsyms
);
295 static struct line_offset
296 linespec_parse_variable (struct linespec_state
*self
,
297 const char *variable
);
299 static int symbol_to_sal (struct symtab_and_line
*result
,
300 int funfirstline
, struct symbol
*sym
);
302 static void add_matching_symbols_to_info (const char *name
,
303 struct collect_info
*info
,
304 struct program_space
*pspace
);
306 static void add_all_symbol_names_from_pspace (struct collect_info
*info
,
307 struct program_space
*pspace
,
308 VEC (const_char_ptr
) *names
);
310 static VEC (symtab_ptr
) *
311 collect_symtabs_from_filename (const char *file
,
312 struct program_space
*pspace
);
314 static void decode_digits_ordinary (struct linespec_state
*self
,
317 struct symtabs_and_lines
*sals
,
318 struct linetable_entry
**best_entry
);
320 static void decode_digits_list_mode (struct linespec_state
*self
,
322 struct symtabs_and_lines
*values
,
323 struct symtab_and_line val
);
325 static void minsym_found (struct linespec_state
*self
, struct objfile
*objfile
,
326 struct minimal_symbol
*msymbol
,
327 struct symtabs_and_lines
*result
);
329 static int compare_symbols (const void *a
, const void *b
);
331 static int compare_msymbols (const void *a
, const void *b
);
333 /* Permitted quote characters for the parser. This is different from the
334 completer's quote characters to allow backward compatibility with the
336 static const char *const linespec_quote_characters
= "\"\'";
338 /* Lexer functions. */
340 /* Lex a number from the input in PARSER. This only supports
343 Return true if input is decimal numbers. Return false if not. */
346 linespec_lexer_lex_number (linespec_parser
*parser
, linespec_token
*tokenp
)
348 tokenp
->type
= LSTOKEN_NUMBER
;
349 LS_TOKEN_STOKEN (*tokenp
).length
= 0;
350 LS_TOKEN_STOKEN (*tokenp
).ptr
= PARSER_STREAM (parser
);
352 /* Keep any sign at the start of the stream. */
353 if (*PARSER_STREAM (parser
) == '+' || *PARSER_STREAM (parser
) == '-')
355 ++LS_TOKEN_STOKEN (*tokenp
).length
;
356 ++(PARSER_STREAM (parser
));
359 while (isdigit (*PARSER_STREAM (parser
)))
361 ++LS_TOKEN_STOKEN (*tokenp
).length
;
362 ++(PARSER_STREAM (parser
));
365 /* If the next character in the input buffer is not a space, comma,
366 quote, or colon, this input does not represent a number. */
367 if (*PARSER_STREAM (parser
) != '\0'
368 && !isspace (*PARSER_STREAM (parser
)) && *PARSER_STREAM (parser
) != ','
369 && *PARSER_STREAM (parser
) != ':'
370 && !strchr (linespec_quote_characters
, *PARSER_STREAM (parser
)))
372 PARSER_STREAM (parser
) = LS_TOKEN_STOKEN (*tokenp
).ptr
;
379 /* See linespec.h. */
382 linespec_lexer_lex_keyword (const char *p
)
388 for (i
= 0; i
< ARRAY_SIZE (linespec_keywords
); ++i
)
390 int len
= strlen (linespec_keywords
[i
]);
392 /* If P begins with one of the keywords and the next
393 character is whitespace, we may have found a keyword.
394 It is only a keyword if it is not followed by another
396 if (strncmp (p
, linespec_keywords
[i
], len
) == 0
401 /* Special case: "if" ALWAYS stops the lexer, since it
402 is not possible to predict what is going to appear in
403 the condition, which can only be parsed after SaLs have
405 if (i
!= IF_KEYWORD_INDEX
)
408 p
= skip_spaces_const (p
);
409 for (j
= 0; j
< ARRAY_SIZE (linespec_keywords
); ++j
)
411 int nextlen
= strlen (linespec_keywords
[j
]);
413 if (strncmp (p
, linespec_keywords
[j
], nextlen
) == 0
414 && isspace (p
[nextlen
]))
419 return linespec_keywords
[i
];
427 /* See description in linespec.h. */
430 is_ada_operator (const char *string
)
432 const struct ada_opname_map
*mapping
;
434 for (mapping
= ada_opname_table
;
435 mapping
->encoded
!= NULL
436 && !startswith (string
, mapping
->decoded
); ++mapping
)
439 return mapping
->decoded
== NULL
? 0 : strlen (mapping
->decoded
);
442 /* Find QUOTE_CHAR in STRING, accounting for the ':' terminal. Return
443 the location of QUOTE_CHAR, or NULL if not found. */
446 skip_quote_char (const char *string
, char quote_char
)
448 const char *p
, *last
;
450 p
= last
= find_toplevel_char (string
, quote_char
);
451 while (p
&& *p
!= '\0' && *p
!= ':')
453 p
= find_toplevel_char (p
, quote_char
);
461 /* Make a writable copy of the string given in TOKEN, trimming
462 any trailing whitespace. */
465 copy_token_string (linespec_token token
)
469 if (token
.type
== LSTOKEN_KEYWORD
)
470 return xstrdup (LS_TOKEN_KEYWORD (token
));
472 str
= savestring (LS_TOKEN_STOKEN (token
).ptr
,
473 LS_TOKEN_STOKEN (token
).length
);
474 s
= remove_trailing_whitespace (str
, str
+ LS_TOKEN_STOKEN (token
).length
);
480 /* Does P represent the end of a quote-enclosed linespec? */
483 is_closing_quote_enclosed (const char *p
)
485 if (strchr (linespec_quote_characters
, *p
))
487 p
= skip_spaces ((char *) p
);
488 return (*p
== '\0' || linespec_lexer_lex_keyword (p
));
491 /* Find the end of the parameter list that starts with *INPUT.
492 This helper function assists with lexing string segments
493 which might contain valid (non-terminating) commas. */
496 find_parameter_list_end (const char *input
)
498 char end_char
, start_char
;
503 if (start_char
== '(')
505 else if (start_char
== '<')
514 if (*p
== start_char
)
516 else if (*p
== end_char
)
531 /* Lex a string from the input in PARSER. */
533 static linespec_token
534 linespec_lexer_lex_string (linespec_parser
*parser
)
536 linespec_token token
;
537 const char *start
= PARSER_STREAM (parser
);
539 token
.type
= LSTOKEN_STRING
;
541 /* If the input stream starts with a quote character, skip to the next
542 quote character, regardless of the content. */
543 if (strchr (linespec_quote_characters
, *PARSER_STREAM (parser
)))
546 char quote_char
= *PARSER_STREAM (parser
);
548 /* Special case: Ada operators. */
549 if (PARSER_STATE (parser
)->language
->la_language
== language_ada
550 && quote_char
== '\"')
552 int len
= is_ada_operator (PARSER_STREAM (parser
));
556 /* The input is an Ada operator. Return the quoted string
558 LS_TOKEN_STOKEN (token
).ptr
= PARSER_STREAM (parser
);
559 LS_TOKEN_STOKEN (token
).length
= len
;
560 PARSER_STREAM (parser
) += len
;
564 /* The input does not represent an Ada operator -- fall through
565 to normal quoted string handling. */
568 /* Skip past the beginning quote. */
569 ++(PARSER_STREAM (parser
));
571 /* Mark the start of the string. */
572 LS_TOKEN_STOKEN (token
).ptr
= PARSER_STREAM (parser
);
574 /* Skip to the ending quote. */
575 end
= skip_quote_char (PARSER_STREAM (parser
), quote_char
);
577 /* Error if the input did not terminate properly. */
579 error (_("unmatched quote"));
581 /* Skip over the ending quote and mark the length of the string. */
582 PARSER_STREAM (parser
) = (char *) ++end
;
583 LS_TOKEN_STOKEN (token
).length
= PARSER_STREAM (parser
) - 2 - start
;
589 /* Otherwise, only identifier characters are permitted.
590 Spaces are the exception. In general, we keep spaces,
591 but only if the next characters in the input do not resolve
592 to one of the keywords.
594 This allows users to forgo quoting CV-qualifiers, template arguments,
595 and similar common language constructs. */
599 if (isspace (*PARSER_STREAM (parser
)))
601 p
= skip_spaces_const (PARSER_STREAM (parser
));
602 /* When we get here we know we've found something followed by
603 a space (we skip over parens and templates below).
604 So if we find a keyword now, we know it is a keyword and not,
605 say, a function name. */
606 if (linespec_lexer_lex_keyword (p
) != NULL
)
608 LS_TOKEN_STOKEN (token
).ptr
= start
;
609 LS_TOKEN_STOKEN (token
).length
610 = PARSER_STREAM (parser
) - start
;
614 /* Advance past the whitespace. */
615 PARSER_STREAM (parser
) = p
;
618 /* If the next character is EOI or (single) ':', the
619 string is complete; return the token. */
620 if (*PARSER_STREAM (parser
) == 0)
622 LS_TOKEN_STOKEN (token
).ptr
= start
;
623 LS_TOKEN_STOKEN (token
).length
= PARSER_STREAM (parser
) - start
;
626 else if (PARSER_STREAM (parser
)[0] == ':')
628 /* Do not tokenize the C++ scope operator. */
629 if (PARSER_STREAM (parser
)[1] == ':')
630 ++(PARSER_STREAM (parser
));
632 /* Do not tokenify if the input length so far is one
633 (i.e, a single-letter drive name) and the next character
634 is a directory separator. This allows Windows-style
635 paths to be recognized as filenames without quoting it. */
636 else if ((PARSER_STREAM (parser
) - start
) != 1
637 || !IS_DIR_SEPARATOR (PARSER_STREAM (parser
)[1]))
639 LS_TOKEN_STOKEN (token
).ptr
= start
;
640 LS_TOKEN_STOKEN (token
).length
641 = PARSER_STREAM (parser
) - start
;
645 /* Special case: permit quote-enclosed linespecs. */
646 else if (parser
->is_quote_enclosed
647 && strchr (linespec_quote_characters
,
648 *PARSER_STREAM (parser
))
649 && is_closing_quote_enclosed (PARSER_STREAM (parser
)))
651 LS_TOKEN_STOKEN (token
).ptr
= start
;
652 LS_TOKEN_STOKEN (token
).length
= PARSER_STREAM (parser
) - start
;
655 /* Because commas may terminate a linespec and appear in
656 the middle of valid string input, special cases for
657 '<' and '(' are necessary. */
658 else if (*PARSER_STREAM (parser
) == '<'
659 || *PARSER_STREAM (parser
) == '(')
663 p
= find_parameter_list_end (PARSER_STREAM (parser
));
666 PARSER_STREAM (parser
) = p
;
670 /* Commas are terminators, but not if they are part of an
672 else if (*PARSER_STREAM (parser
) == ',')
674 if ((PARSER_STATE (parser
)->language
->la_language
676 && (PARSER_STREAM (parser
) - start
) > 8
677 /* strlen ("operator") */)
679 const char *p
= strstr (start
, "operator");
681 if (p
!= NULL
&& is_operator_name (p
))
683 /* This is an operator name. Keep going. */
684 ++(PARSER_STREAM (parser
));
689 /* Comma terminates the string. */
690 LS_TOKEN_STOKEN (token
).ptr
= start
;
691 LS_TOKEN_STOKEN (token
).length
= PARSER_STREAM (parser
) - start
;
695 /* Advance the stream. */
696 ++(PARSER_STREAM (parser
));
703 /* Lex a single linespec token from PARSER. */
705 static linespec_token
706 linespec_lexer_lex_one (linespec_parser
*parser
)
710 if (parser
->lexer
.current
.type
== LSTOKEN_CONSUMED
)
712 /* Skip any whitespace. */
713 PARSER_STREAM (parser
) = skip_spaces_const (PARSER_STREAM (parser
));
715 /* Check for a keyword, they end the linespec. */
716 keyword
= linespec_lexer_lex_keyword (PARSER_STREAM (parser
));
719 parser
->lexer
.current
.type
= LSTOKEN_KEYWORD
;
720 LS_TOKEN_KEYWORD (parser
->lexer
.current
) = keyword
;
721 /* We do not advance the stream here intentionally:
722 we would like lexing to stop when a keyword is seen.
724 PARSER_STREAM (parser) += strlen (keyword); */
726 return parser
->lexer
.current
;
729 /* Handle other tokens. */
730 switch (*PARSER_STREAM (parser
))
733 parser
->lexer
.current
.type
= LSTOKEN_EOI
;
737 case '0': case '1': case '2': case '3': case '4':
738 case '5': case '6': case '7': case '8': case '9':
739 if (!linespec_lexer_lex_number (parser
, &(parser
->lexer
.current
)))
740 parser
->lexer
.current
= linespec_lexer_lex_string (parser
);
744 /* If we have a scope operator, lex the input as a string.
745 Otherwise, return LSTOKEN_COLON. */
746 if (PARSER_STREAM (parser
)[1] == ':')
747 parser
->lexer
.current
= linespec_lexer_lex_string (parser
);
750 parser
->lexer
.current
.type
= LSTOKEN_COLON
;
751 ++(PARSER_STREAM (parser
));
755 case '\'': case '\"':
756 /* Special case: permit quote-enclosed linespecs. */
757 if (parser
->is_quote_enclosed
758 && is_closing_quote_enclosed (PARSER_STREAM (parser
)))
760 ++(PARSER_STREAM (parser
));
761 parser
->lexer
.current
.type
= LSTOKEN_EOI
;
764 parser
->lexer
.current
= linespec_lexer_lex_string (parser
);
768 parser
->lexer
.current
.type
= LSTOKEN_COMMA
;
769 LS_TOKEN_STOKEN (parser
->lexer
.current
).ptr
770 = PARSER_STREAM (parser
);
771 LS_TOKEN_STOKEN (parser
->lexer
.current
).length
= 1;
772 ++(PARSER_STREAM (parser
));
776 /* If the input is not a number, it must be a string.
777 [Keywords were already considered above.] */
778 parser
->lexer
.current
= linespec_lexer_lex_string (parser
);
783 return parser
->lexer
.current
;
786 /* Consume the current token and return the next token in PARSER's
789 static linespec_token
790 linespec_lexer_consume_token (linespec_parser
*parser
)
792 parser
->lexer
.current
.type
= LSTOKEN_CONSUMED
;
793 return linespec_lexer_lex_one (parser
);
796 /* Return the next token without consuming the current token. */
798 static linespec_token
799 linespec_lexer_peek_token (linespec_parser
*parser
)
802 const char *saved_stream
= PARSER_STREAM (parser
);
803 linespec_token saved_token
= parser
->lexer
.current
;
805 next
= linespec_lexer_consume_token (parser
);
806 PARSER_STREAM (parser
) = saved_stream
;
807 parser
->lexer
.current
= saved_token
;
811 /* Helper functions. */
813 /* Add SAL to SALS. */
816 add_sal_to_sals_basic (struct symtabs_and_lines
*sals
,
817 struct symtab_and_line
*sal
)
820 sals
->sals
= XRESIZEVEC (struct symtab_and_line
, sals
->sals
, sals
->nelts
);
821 sals
->sals
[sals
->nelts
- 1] = *sal
;
824 /* Add SAL to SALS, and also update SELF->CANONICAL_NAMES to reflect
825 the new sal, if needed. If not NULL, SYMNAME is the name of the
826 symbol to use when constructing the new canonical name.
828 If LITERAL_CANONICAL is non-zero, SYMNAME will be used as the
829 canonical name for the SAL. */
832 add_sal_to_sals (struct linespec_state
*self
,
833 struct symtabs_and_lines
*sals
,
834 struct symtab_and_line
*sal
,
835 const char *symname
, int literal_canonical
)
837 add_sal_to_sals_basic (sals
, sal
);
841 struct linespec_canonical_name
*canonical
;
843 self
->canonical_names
= XRESIZEVEC (struct linespec_canonical_name
,
844 self
->canonical_names
, sals
->nelts
);
845 canonical
= &self
->canonical_names
[sals
->nelts
- 1];
846 if (!literal_canonical
&& sal
->symtab
)
848 const char *fullname
= symtab_to_fullname (sal
->symtab
);
850 /* Note that the filter doesn't have to be a valid linespec
851 input. We only apply the ":LINE" treatment to Ada for
853 if (symname
!= NULL
&& sal
->line
!= 0
854 && self
->language
->la_language
== language_ada
)
855 canonical
->suffix
= xstrprintf ("%s:%d", symname
, sal
->line
);
856 else if (symname
!= NULL
)
857 canonical
->suffix
= xstrdup (symname
);
859 canonical
->suffix
= xstrprintf ("%d", sal
->line
);
860 canonical
->symtab
= sal
->symtab
;
865 canonical
->suffix
= xstrdup (symname
);
867 canonical
->suffix
= xstrdup ("<unknown>");
868 canonical
->symtab
= NULL
;
873 /* A hash function for address_entry. */
876 hash_address_entry (const void *p
)
878 const struct address_entry
*aep
= (const struct address_entry
*) p
;
881 hash
= iterative_hash_object (aep
->pspace
, 0);
882 return iterative_hash_object (aep
->addr
, hash
);
885 /* An equality function for address_entry. */
888 eq_address_entry (const void *a
, const void *b
)
890 const struct address_entry
*aea
= (const struct address_entry
*) a
;
891 const struct address_entry
*aeb
= (const struct address_entry
*) b
;
893 return aea
->pspace
== aeb
->pspace
&& aea
->addr
== aeb
->addr
;
896 /* Check whether the address, represented by PSPACE and ADDR, is
897 already in the set. If so, return 0. Otherwise, add it and return
901 maybe_add_address (htab_t set
, struct program_space
*pspace
, CORE_ADDR addr
)
903 struct address_entry e
, *p
;
908 slot
= htab_find_slot (set
, &e
, INSERT
);
912 p
= XNEW (struct address_entry
);
913 memcpy (p
, &e
, sizeof (struct address_entry
));
919 /* A callback function and the additional data to call it with. */
921 struct symbol_and_data_callback
923 /* The callback to use. */
924 symbol_found_callback_ftype
*callback
;
926 /* Data to be passed to the callback. */
930 /* A helper for iterate_over_all_matching_symtabs that is used to
931 restrict calls to another callback to symbols representing inline
935 iterate_inline_only (struct symbol
*sym
, void *d
)
937 if (SYMBOL_INLINED (sym
))
939 struct symbol_and_data_callback
*cad
940 = (struct symbol_and_data_callback
*) d
;
942 return cad
->callback (sym
, cad
->data
);
944 return 1; /* Continue iterating. */
947 /* Some data for the expand_symtabs_matching callback. */
949 struct symbol_matcher_data
951 /* The lookup name against which symbol name should be compared. */
952 const char *lookup_name
;
954 /* The routine to be used for comparison. */
955 symbol_name_cmp_ftype symbol_name_cmp
;
958 /* A helper for iterate_over_all_matching_symtabs that is passed as a
959 callback to the expand_symtabs_matching method. */
962 iterate_name_matcher (const char *name
, void *d
)
964 const struct symbol_matcher_data
*data
965 = (const struct symbol_matcher_data
*) d
;
967 if (data
->symbol_name_cmp (name
, data
->lookup_name
) == 0)
968 return 1; /* Expand this symbol's symbol table. */
969 return 0; /* Skip this symbol. */
972 /* A helper that walks over all matching symtabs in all objfiles and
973 calls CALLBACK for each symbol matching NAME. If SEARCH_PSPACE is
974 not NULL, then the search is restricted to just that program
975 space. If INCLUDE_INLINE is nonzero then symbols representing
976 inlined instances of functions will be included in the result. */
979 iterate_over_all_matching_symtabs (struct linespec_state
*state
,
981 const domain_enum domain
,
982 symbol_found_callback_ftype
*callback
,
984 struct program_space
*search_pspace
,
987 struct objfile
*objfile
;
988 struct program_space
*pspace
;
989 struct symbol_matcher_data matcher_data
;
991 matcher_data
.lookup_name
= name
;
992 matcher_data
.symbol_name_cmp
=
993 state
->language
->la_get_symbol_name_cmp
!= NULL
994 ? state
->language
->la_get_symbol_name_cmp (name
)
999 if (search_pspace
!= NULL
&& search_pspace
!= pspace
)
1001 if (pspace
->executing_startup
)
1004 set_current_program_space (pspace
);
1006 ALL_OBJFILES (objfile
)
1008 struct compunit_symtab
*cu
;
1011 objfile
->sf
->qf
->expand_symtabs_matching (objfile
, NULL
,
1012 iterate_name_matcher
,
1016 ALL_OBJFILE_COMPUNITS (objfile
, cu
)
1018 struct symtab
*symtab
= COMPUNIT_FILETABS (cu
);
1020 iterate_over_file_blocks (symtab
, name
, domain
, callback
, data
);
1024 struct symbol_and_data_callback cad
= { callback
, data
};
1025 struct block
*block
;
1028 for (i
= FIRST_LOCAL_BLOCK
;
1029 i
< BLOCKVECTOR_NBLOCKS (SYMTAB_BLOCKVECTOR (symtab
));
1032 block
= BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab
), i
);
1033 state
->language
->la_iterate_over_symbols
1034 (block
, name
, domain
, iterate_inline_only
, &cad
);
1042 /* Returns the block to be used for symbol searches from
1043 the current location. */
1045 static const struct block
*
1046 get_current_search_block (void)
1048 const struct block
*block
;
1049 enum language save_language
;
1051 /* get_selected_block can change the current language when there is
1052 no selected frame yet. */
1053 save_language
= current_language
->la_language
;
1054 block
= get_selected_block (0);
1055 set_language (save_language
);
1060 /* Iterate over static and global blocks. */
1063 iterate_over_file_blocks (struct symtab
*symtab
,
1064 const char *name
, domain_enum domain
,
1065 symbol_found_callback_ftype
*callback
, void *data
)
1067 struct block
*block
;
1069 for (block
= BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab
), STATIC_BLOCK
);
1071 block
= BLOCK_SUPERBLOCK (block
))
1072 LA_ITERATE_OVER_SYMBOLS (block
, name
, domain
, callback
, data
);
1075 /* A helper for find_method. This finds all methods in type T which
1076 match NAME. It adds matching symbol names to RESULT_NAMES, and
1077 adds T's direct superclasses to SUPERCLASSES. */
1080 find_methods (struct type
*t
, const char *name
,
1081 VEC (const_char_ptr
) **result_names
,
1082 VEC (typep
) **superclasses
)
1085 const char *class_name
= type_name_no_tag (t
);
1087 /* Ignore this class if it doesn't have a name. This is ugly, but
1088 unless we figure out how to get the physname without the name of
1089 the class, then the loop can't do any good. */
1094 t
= check_typedef (t
);
1096 /* Loop over each method name. At this level, all overloads of a name
1097 are counted as a single name. There is an inner loop which loops over
1100 for (method_counter
= TYPE_NFN_FIELDS (t
) - 1;
1101 method_counter
>= 0;
1104 const char *method_name
= TYPE_FN_FIELDLIST_NAME (t
, method_counter
);
1105 char dem_opname
[64];
1107 if (startswith (method_name
, "__") ||
1108 startswith (method_name
, "op") ||
1109 startswith (method_name
, "type"))
1111 if (cplus_demangle_opname (method_name
, dem_opname
, DMGL_ANSI
))
1112 method_name
= dem_opname
;
1113 else if (cplus_demangle_opname (method_name
, dem_opname
, 0))
1114 method_name
= dem_opname
;
1117 if (strcmp_iw (method_name
, name
) == 0)
1121 for (field_counter
= (TYPE_FN_FIELDLIST_LENGTH (t
, method_counter
)
1127 const char *phys_name
;
1129 f
= TYPE_FN_FIELDLIST1 (t
, method_counter
);
1130 if (TYPE_FN_FIELD_STUB (f
, field_counter
))
1132 phys_name
= TYPE_FN_FIELD_PHYSNAME (f
, field_counter
);
1133 VEC_safe_push (const_char_ptr
, *result_names
, phys_name
);
1139 for (ibase
= 0; ibase
< TYPE_N_BASECLASSES (t
); ibase
++)
1140 VEC_safe_push (typep
, *superclasses
, TYPE_BASECLASS (t
, ibase
));
1143 /* Find an instance of the character C in the string S that is outside
1144 of all parenthesis pairs, single-quoted strings, and double-quoted
1145 strings. Also, ignore the char within a template name, like a ','
1146 within foo<int, int>. */
1149 find_toplevel_char (const char *s
, char c
)
1151 int quoted
= 0; /* zero if we're not in quotes;
1152 '"' if we're in a double-quoted string;
1153 '\'' if we're in a single-quoted string. */
1154 int depth
= 0; /* Number of unclosed parens we've seen. */
1157 for (scan
= s
; *scan
; scan
++)
1161 if (*scan
== quoted
)
1163 else if (*scan
== '\\' && *(scan
+ 1))
1166 else if (*scan
== c
&& ! quoted
&& depth
== 0)
1168 else if (*scan
== '"' || *scan
== '\'')
1170 else if (*scan
== '(' || *scan
== '<')
1172 else if ((*scan
== ')' || *scan
== '>') && depth
> 0)
1179 /* The string equivalent of find_toplevel_char. Returns a pointer
1180 to the location of NEEDLE in HAYSTACK, ignoring any occurrences
1181 inside "()" and "<>". Returns NULL if NEEDLE was not found. */
1184 find_toplevel_string (const char *haystack
, const char *needle
)
1186 const char *s
= haystack
;
1190 s
= find_toplevel_char (s
, *needle
);
1194 /* Found first char in HAYSTACK; check rest of string. */
1195 if (startswith (s
, needle
))
1198 /* Didn't find it; loop over HAYSTACK, looking for the next
1199 instance of the first character of NEEDLE. */
1203 while (s
!= NULL
&& *s
!= '\0');
1205 /* NEEDLE was not found in HAYSTACK. */
1209 /* Convert CANONICAL to its string representation using
1210 symtab_to_fullname for SYMTAB. The caller must xfree the result. */
1213 canonical_to_fullform (const struct linespec_canonical_name
*canonical
)
1215 if (canonical
->symtab
== NULL
)
1216 return xstrdup (canonical
->suffix
);
1218 return xstrprintf ("%s:%s", symtab_to_fullname (canonical
->symtab
),
1222 /* Given FILTERS, a list of canonical names, filter the sals in RESULT
1223 and store the result in SELF->CANONICAL. */
1226 filter_results (struct linespec_state
*self
,
1227 struct symtabs_and_lines
*result
,
1228 VEC (const_char_ptr
) *filters
)
1233 for (i
= 0; VEC_iterate (const_char_ptr
, filters
, i
, name
); ++i
)
1235 struct linespec_sals lsal
;
1238 memset (&lsal
, 0, sizeof (lsal
));
1240 for (j
= 0; j
< result
->nelts
; ++j
)
1242 const struct linespec_canonical_name
*canonical
;
1244 struct cleanup
*cleanup
;
1246 canonical
= &self
->canonical_names
[j
];
1247 fullform
= canonical_to_fullform (canonical
);
1248 cleanup
= make_cleanup (xfree
, fullform
);
1250 if (strcmp (name
, fullform
) == 0)
1251 add_sal_to_sals_basic (&lsal
.sals
, &result
->sals
[j
]);
1253 do_cleanups (cleanup
);
1256 if (lsal
.sals
.nelts
> 0)
1258 lsal
.canonical
= xstrdup (name
);
1259 VEC_safe_push (linespec_sals
, self
->canonical
->sals
, &lsal
);
1263 self
->canonical
->pre_expanded
= 0;
1266 /* Store RESULT into SELF->CANONICAL. */
1269 convert_results_to_lsals (struct linespec_state
*self
,
1270 struct symtabs_and_lines
*result
)
1272 struct linespec_sals lsal
;
1274 lsal
.canonical
= NULL
;
1275 lsal
.sals
= *result
;
1276 VEC_safe_push (linespec_sals
, self
->canonical
->sals
, &lsal
);
1279 /* A structure that contains two string representations of a struct
1280 linespec_canonical_name:
1281 - one where the the symtab's fullname is used;
1282 - one where the filename followed the "set filename-display"
1285 struct decode_line_2_item
1287 /* The form using symtab_to_fullname.
1288 It must be xfree'ed after use. */
1291 /* The form using symtab_to_filename_for_display.
1292 It must be xfree'ed after use. */
1295 /* Field is initialized to zero and it is set to one if the user
1296 requested breakpoint for this entry. */
1297 unsigned int selected
: 1;
1300 /* Helper for qsort to sort decode_line_2_item entries by DISPLAYFORM and
1301 secondarily by FULLFORM. */
1304 decode_line_2_compare_items (const void *ap
, const void *bp
)
1306 const struct decode_line_2_item
*a
= (const struct decode_line_2_item
*) ap
;
1307 const struct decode_line_2_item
*b
= (const struct decode_line_2_item
*) bp
;
1310 retval
= strcmp (a
->displayform
, b
->displayform
);
1314 return strcmp (a
->fullform
, b
->fullform
);
1317 /* Handle multiple results in RESULT depending on SELECT_MODE. This
1318 will either return normally, throw an exception on multiple
1319 results, or present a menu to the user. On return, the SALS vector
1320 in SELF->CANONICAL is set up properly. */
1323 decode_line_2 (struct linespec_state
*self
,
1324 struct symtabs_and_lines
*result
,
1325 const char *select_mode
)
1327 char *args
, *prompt
;
1329 struct cleanup
*old_chain
;
1330 VEC (const_char_ptr
) *filters
= NULL
;
1331 struct get_number_or_range_state state
;
1332 struct decode_line_2_item
*items
;
1335 gdb_assert (select_mode
!= multiple_symbols_all
);
1336 gdb_assert (self
->canonical
!= NULL
);
1337 gdb_assert (result
->nelts
>= 1);
1339 old_chain
= make_cleanup (VEC_cleanup (const_char_ptr
), &filters
);
1341 /* Prepare ITEMS array. */
1342 items_count
= result
->nelts
;
1343 items
= XNEWVEC (struct decode_line_2_item
, items_count
);
1344 make_cleanup (xfree
, items
);
1345 for (i
= 0; i
< items_count
; ++i
)
1347 const struct linespec_canonical_name
*canonical
;
1348 struct decode_line_2_item
*item
;
1350 canonical
= &self
->canonical_names
[i
];
1351 gdb_assert (canonical
->suffix
!= NULL
);
1354 item
->fullform
= canonical_to_fullform (canonical
);
1355 make_cleanup (xfree
, item
->fullform
);
1357 if (canonical
->symtab
== NULL
)
1358 item
->displayform
= canonical
->suffix
;
1361 const char *fn_for_display
;
1363 fn_for_display
= symtab_to_filename_for_display (canonical
->symtab
);
1364 item
->displayform
= xstrprintf ("%s:%s", fn_for_display
,
1366 make_cleanup (xfree
, item
->displayform
);
1372 /* Sort the list of method names. */
1373 qsort (items
, items_count
, sizeof (*items
), decode_line_2_compare_items
);
1375 /* Remove entries with the same FULLFORM. */
1376 if (items_count
>= 2)
1378 struct decode_line_2_item
*dst
, *src
;
1381 for (src
= &items
[1]; src
< &items
[items_count
]; src
++)
1382 if (strcmp (src
->fullform
, dst
->fullform
) != 0)
1384 items_count
= dst
+ 1 - items
;
1387 if (select_mode
== multiple_symbols_cancel
&& items_count
> 1)
1388 error (_("canceled because the command is ambiguous\n"
1389 "See set/show multiple-symbol."));
1391 if (select_mode
== multiple_symbols_all
|| items_count
== 1)
1393 do_cleanups (old_chain
);
1394 convert_results_to_lsals (self
, result
);
1398 printf_unfiltered (_("[0] cancel\n[1] all\n"));
1399 for (i
= 0; i
< items_count
; i
++)
1400 printf_unfiltered ("[%d] %s\n", i
+ 2, items
[i
].displayform
);
1402 prompt
= getenv ("PS2");
1407 args
= command_line_input (prompt
, 0, "overload-choice");
1409 if (args
== 0 || *args
== 0)
1410 error_no_arg (_("one or more choice numbers"));
1412 init_number_or_range (&state
, args
);
1413 while (!state
.finished
)
1417 num
= get_number_or_range (&state
);
1420 error (_("canceled"));
1423 /* We intentionally make this result in a single breakpoint,
1424 contrary to what older versions of gdb did. The
1425 rationale is that this lets a user get the
1426 multiple_symbols_all behavior even with the 'ask'
1427 setting; and he can get separate breakpoints by entering
1428 "2-57" at the query. */
1429 do_cleanups (old_chain
);
1430 convert_results_to_lsals (self
, result
);
1435 if (num
>= items_count
)
1436 printf_unfiltered (_("No choice number %d.\n"), num
);
1439 struct decode_line_2_item
*item
= &items
[num
];
1441 if (!item
->selected
)
1443 VEC_safe_push (const_char_ptr
, filters
, item
->fullform
);
1448 printf_unfiltered (_("duplicate request for %d ignored.\n"),
1454 filter_results (self
, result
, filters
);
1455 do_cleanups (old_chain
);
1460 /* The parser of linespec itself. */
1462 /* Throw an appropriate error when SYMBOL is not found (optionally in
1465 static void ATTRIBUTE_NORETURN
1466 symbol_not_found_error (const char *symbol
, const char *filename
)
1471 if (!have_full_symbols ()
1472 && !have_partial_symbols ()
1473 && !have_minimal_symbols ())
1474 throw_error (NOT_FOUND_ERROR
,
1475 _("No symbol table is loaded. Use the \"file\" command."));
1477 /* If SYMBOL starts with '$', the user attempted to either lookup
1478 a function/variable in his code starting with '$' or an internal
1479 variable of that name. Since we do not know which, be concise and
1480 explain both possibilities. */
1484 throw_error (NOT_FOUND_ERROR
,
1485 _("Undefined convenience variable or function \"%s\" "
1486 "not defined in \"%s\"."), symbol
, filename
);
1488 throw_error (NOT_FOUND_ERROR
,
1489 _("Undefined convenience variable or function \"%s\" "
1490 "not defined."), symbol
);
1495 throw_error (NOT_FOUND_ERROR
,
1496 _("Function \"%s\" not defined in \"%s\"."),
1499 throw_error (NOT_FOUND_ERROR
,
1500 _("Function \"%s\" not defined."), symbol
);
1504 /* Throw an appropriate error when an unexpected token is encountered
1507 static void ATTRIBUTE_NORETURN
1508 unexpected_linespec_error (linespec_parser
*parser
)
1510 linespec_token token
;
1511 static const char * token_type_strings
[]
1512 = {"keyword", "colon", "string", "number", "comma", "end of input"};
1514 /* Get the token that generated the error. */
1515 token
= linespec_lexer_lex_one (parser
);
1517 /* Finally, throw the error. */
1518 if (token
.type
== LSTOKEN_STRING
|| token
.type
== LSTOKEN_NUMBER
1519 || token
.type
== LSTOKEN_KEYWORD
)
1522 struct cleanup
*cleanup
;
1524 string
= copy_token_string (token
);
1525 cleanup
= make_cleanup (xfree
, string
);
1526 throw_error (GENERIC_ERROR
,
1527 _("malformed linespec error: unexpected %s, \"%s\""),
1528 token_type_strings
[token
.type
], string
);
1531 throw_error (GENERIC_ERROR
,
1532 _("malformed linespec error: unexpected %s"),
1533 token_type_strings
[token
.type
]);
1536 /* Throw an undefined label error. */
1538 static void ATTRIBUTE_NORETURN
1539 undefined_label_error (const char *function
, const char *label
)
1541 if (function
!= NULL
)
1542 throw_error (NOT_FOUND_ERROR
,
1543 _("No label \"%s\" defined in function \"%s\"."),
1546 throw_error (NOT_FOUND_ERROR
,
1547 _("No label \"%s\" defined in current function."),
1551 /* Throw a source file not found error. */
1553 static void ATTRIBUTE_NORETURN
1554 source_file_not_found_error (const char *name
)
1556 throw_error (NOT_FOUND_ERROR
, _("No source file named %s."), name
);
1559 /* See description in linespec.h. */
1562 linespec_parse_line_offset (const char *string
)
1564 const char *start
= string
;
1565 struct line_offset line_offset
= {0, LINE_OFFSET_NONE
};
1569 line_offset
.sign
= LINE_OFFSET_PLUS
;
1572 else if (*string
== '-')
1574 line_offset
.sign
= LINE_OFFSET_MINUS
;
1578 if (*string
!= '\0' && !isdigit (*string
))
1579 error (_("malformed line offset: \"%s\""), start
);
1581 /* Right now, we only allow base 10 for offsets. */
1582 line_offset
.offset
= atoi (string
);
1586 /* Parse the basic_spec in PARSER's input. */
1589 linespec_parse_basic (linespec_parser
*parser
)
1592 linespec_token token
;
1593 VEC (symbolp
) *symbols
, *labels
;
1594 VEC (bound_minimal_symbol_d
) *minimal_symbols
;
1595 struct cleanup
*cleanup
;
1597 /* Get the next token. */
1598 token
= linespec_lexer_lex_one (parser
);
1600 /* If it is EOI or KEYWORD, issue an error. */
1601 if (token
.type
== LSTOKEN_KEYWORD
|| token
.type
== LSTOKEN_EOI
)
1602 unexpected_linespec_error (parser
);
1603 /* If it is a LSTOKEN_NUMBER, we have an offset. */
1604 else if (token
.type
== LSTOKEN_NUMBER
)
1606 /* Record the line offset and get the next token. */
1607 name
= copy_token_string (token
);
1608 cleanup
= make_cleanup (xfree
, name
);
1609 PARSER_EXPLICIT (parser
)->line_offset
= linespec_parse_line_offset (name
);
1610 do_cleanups (cleanup
);
1612 /* Get the next token. */
1613 token
= linespec_lexer_consume_token (parser
);
1615 /* If the next token is a comma, stop parsing and return. */
1616 if (token
.type
== LSTOKEN_COMMA
)
1619 /* If the next token is anything but EOI or KEYWORD, issue
1621 if (token
.type
!= LSTOKEN_KEYWORD
&& token
.type
!= LSTOKEN_EOI
)
1622 unexpected_linespec_error (parser
);
1625 if (token
.type
== LSTOKEN_KEYWORD
|| token
.type
== LSTOKEN_EOI
)
1628 /* Next token must be LSTOKEN_STRING. */
1629 if (token
.type
!= LSTOKEN_STRING
)
1630 unexpected_linespec_error (parser
);
1632 /* The current token will contain the name of a function, method,
1634 name
= copy_token_string (token
);
1635 cleanup
= make_cleanup (xfree
, name
);
1637 /* Try looking it up as a function/method. */
1638 find_linespec_symbols (PARSER_STATE (parser
),
1639 PARSER_RESULT (parser
)->file_symtabs
, name
,
1640 &symbols
, &minimal_symbols
);
1642 if (symbols
!= NULL
|| minimal_symbols
!= NULL
)
1644 PARSER_RESULT (parser
)->function_symbols
= symbols
;
1645 PARSER_RESULT (parser
)->minimal_symbols
= minimal_symbols
;
1646 PARSER_EXPLICIT (parser
)->function_name
= name
;
1648 discard_cleanups (cleanup
);
1652 /* NAME was not a function or a method. So it must be a label
1653 name or user specified variable like "break foo.c:$zippo". */
1654 labels
= find_label_symbols (PARSER_STATE (parser
), NULL
,
1658 PARSER_RESULT (parser
)->labels
.label_symbols
= labels
;
1659 PARSER_RESULT (parser
)->labels
.function_symbols
= symbols
;
1660 PARSER_EXPLICIT (parser
)->label_name
= name
;
1662 discard_cleanups (cleanup
);
1664 else if (token
.type
== LSTOKEN_STRING
1665 && *LS_TOKEN_STOKEN (token
).ptr
== '$')
1667 /* User specified a convenience variable or history value. */
1668 PARSER_EXPLICIT (parser
)->line_offset
1669 = linespec_parse_variable (PARSER_STATE (parser
), name
);
1671 if (PARSER_EXPLICIT (parser
)->line_offset
.sign
== LINE_OFFSET_UNKNOWN
)
1673 /* The user-specified variable was not valid. Do not
1674 throw an error here. parse_linespec will do it for us. */
1675 PARSER_EXPLICIT (parser
)->function_name
= name
;
1676 discard_cleanups (cleanup
);
1680 /* The convenience variable/history value parsed correctly.
1681 NAME is no longer needed. */
1682 do_cleanups (cleanup
);
1686 /* The name is also not a label. Abort parsing. Do not throw
1687 an error here. parse_linespec will do it for us. */
1689 /* Save a copy of the name we were trying to lookup. */
1690 PARSER_EXPLICIT (parser
)->function_name
= name
;
1691 discard_cleanups (cleanup
);
1696 /* Get the next token. */
1697 token
= linespec_lexer_consume_token (parser
);
1699 if (token
.type
== LSTOKEN_COLON
)
1701 /* User specified a label or a lineno. */
1702 token
= linespec_lexer_consume_token (parser
);
1704 if (token
.type
== LSTOKEN_NUMBER
)
1706 /* User specified an offset. Record the line offset and
1707 get the next token. */
1708 name
= copy_token_string (token
);
1709 cleanup
= make_cleanup (xfree
, name
);
1710 PARSER_EXPLICIT (parser
)->line_offset
1711 = linespec_parse_line_offset (name
);
1712 do_cleanups (cleanup
);
1714 /* Ge the next token. */
1715 token
= linespec_lexer_consume_token (parser
);
1717 else if (token
.type
== LSTOKEN_STRING
)
1719 /* Grab a copy of the label's name and look it up. */
1720 name
= copy_token_string (token
);
1721 cleanup
= make_cleanup (xfree
, name
);
1722 labels
= find_label_symbols (PARSER_STATE (parser
),
1723 PARSER_RESULT (parser
)->function_symbols
,
1728 PARSER_RESULT (parser
)->labels
.label_symbols
= labels
;
1729 PARSER_RESULT (parser
)->labels
.function_symbols
= symbols
;
1730 PARSER_EXPLICIT (parser
)->label_name
= name
;
1732 discard_cleanups (cleanup
);
1736 /* We don't know what it was, but it isn't a label. */
1737 undefined_label_error (PARSER_EXPLICIT (parser
)->function_name
,
1741 /* Check for a line offset. */
1742 token
= linespec_lexer_consume_token (parser
);
1743 if (token
.type
== LSTOKEN_COLON
)
1745 /* Get the next token. */
1746 token
= linespec_lexer_consume_token (parser
);
1748 /* It must be a line offset. */
1749 if (token
.type
!= LSTOKEN_NUMBER
)
1750 unexpected_linespec_error (parser
);
1752 /* Record the lione offset and get the next token. */
1753 name
= copy_token_string (token
);
1754 cleanup
= make_cleanup (xfree
, name
);
1756 PARSER_EXPLICIT (parser
)->line_offset
1757 = linespec_parse_line_offset (name
);
1758 do_cleanups (cleanup
);
1760 /* Get the next token. */
1761 token
= linespec_lexer_consume_token (parser
);
1766 /* Trailing ':' in the input. Issue an error. */
1767 unexpected_linespec_error (parser
);
1772 /* Canonicalize the linespec contained in LS. The result is saved into
1773 STATE->canonical. This function handles both linespec and explicit
1777 canonicalize_linespec (struct linespec_state
*state
, const linespec_p ls
)
1779 struct event_location
*canon
;
1780 struct explicit_location
*explicit_loc
;
1782 /* If canonicalization was not requested, no need to do anything. */
1783 if (!state
->canonical
)
1786 /* Save everything as an explicit location. */
1787 canon
= state
->canonical
->location
1788 = new_explicit_location (&ls
->explicit_loc
);
1789 explicit_loc
= get_explicit_location (canon
);
1791 if (explicit_loc
->label_name
!= NULL
)
1793 state
->canonical
->special_display
= 1;
1795 if (explicit_loc
->function_name
== NULL
)
1799 /* No function was specified, so add the symbol name. */
1800 gdb_assert (ls
->labels
.function_symbols
!= NULL
1801 && (VEC_length (symbolp
, ls
->labels
.function_symbols
)
1803 s
= VEC_index (symbolp
, ls
->labels
.function_symbols
, 0);
1804 explicit_loc
->function_name
= xstrdup (SYMBOL_NATURAL_NAME (s
));
1808 /* If this location originally came from a linespec, save a string
1809 representation of it for display and saving to file. */
1810 if (state
->is_linespec
)
1812 char *linespec
= explicit_location_to_linespec (explicit_loc
);
1814 set_event_location_string (canon
, linespec
);
1819 /* Given a line offset in LS, construct the relevant SALs. */
1821 static struct symtabs_and_lines
1822 create_sals_line_offset (struct linespec_state
*self
,
1825 struct symtabs_and_lines values
;
1826 struct symtab_and_line val
;
1827 int use_default
= 0;
1833 /* This is where we need to make sure we have good defaults.
1834 We must guarantee that this section of code is never executed
1835 when we are called with just a function name, since
1836 set_default_source_symtab_and_line uses
1837 select_source_symtab that calls us with such an argument. */
1839 if (VEC_length (symtab_ptr
, ls
->file_symtabs
) == 1
1840 && VEC_index (symtab_ptr
, ls
->file_symtabs
, 0) == NULL
)
1842 const char *fullname
;
1844 set_current_program_space (self
->program_space
);
1846 /* Make sure we have at least a default source line. */
1847 set_default_source_symtab_and_line ();
1848 initialize_defaults (&self
->default_symtab
, &self
->default_line
);
1849 fullname
= symtab_to_fullname (self
->default_symtab
);
1850 VEC_pop (symtab_ptr
, ls
->file_symtabs
);
1851 VEC_free (symtab_ptr
, ls
->file_symtabs
);
1852 ls
->file_symtabs
= collect_symtabs_from_filename (fullname
,
1853 self
->search_pspace
);
1857 val
.line
= ls
->explicit_loc
.line_offset
.offset
;
1858 switch (ls
->explicit_loc
.line_offset
.sign
)
1860 case LINE_OFFSET_PLUS
:
1861 if (ls
->explicit_loc
.line_offset
.offset
== 0)
1864 val
.line
= self
->default_line
+ val
.line
;
1867 case LINE_OFFSET_MINUS
:
1868 if (ls
->explicit_loc
.line_offset
.offset
== 0)
1871 val
.line
= self
->default_line
- val
.line
;
1873 val
.line
= -val
.line
;
1876 case LINE_OFFSET_NONE
:
1877 break; /* No need to adjust val.line. */
1880 if (self
->list_mode
)
1881 decode_digits_list_mode (self
, ls
, &values
, val
);
1884 struct linetable_entry
*best_entry
= NULL
;
1886 const struct block
**blocks
;
1887 struct cleanup
*cleanup
;
1888 struct symtabs_and_lines intermediate_results
;
1891 intermediate_results
.sals
= NULL
;
1892 intermediate_results
.nelts
= 0;
1894 decode_digits_ordinary (self
, ls
, val
.line
, &intermediate_results
,
1896 if (intermediate_results
.nelts
== 0 && best_entry
!= NULL
)
1897 decode_digits_ordinary (self
, ls
, best_entry
->line
,
1898 &intermediate_results
, &best_entry
);
1900 cleanup
= make_cleanup (xfree
, intermediate_results
.sals
);
1902 /* For optimized code, the compiler can scatter one source line
1903 across disjoint ranges of PC values, even when no duplicate
1904 functions or inline functions are involved. For example,
1905 'for (;;)' inside a non-template, non-inline, and non-ctor-or-dtor
1906 function can result in two PC ranges. In this case, we don't
1907 want to set a breakpoint on the first PC of each range. To filter
1908 such cases, we use containing blocks -- for each PC found
1909 above, we see if there are other PCs that are in the same
1910 block. If yes, the other PCs are filtered out. */
1912 filter
= XNEWVEC (int, intermediate_results
.nelts
);
1913 make_cleanup (xfree
, filter
);
1914 blocks
= XNEWVEC (const struct block
*, intermediate_results
.nelts
);
1915 make_cleanup (xfree
, blocks
);
1917 for (i
= 0; i
< intermediate_results
.nelts
; ++i
)
1919 set_current_program_space (intermediate_results
.sals
[i
].pspace
);
1922 blocks
[i
] = block_for_pc_sect (intermediate_results
.sals
[i
].pc
,
1923 intermediate_results
.sals
[i
].section
);
1926 for (i
= 0; i
< intermediate_results
.nelts
; ++i
)
1928 if (blocks
[i
] != NULL
)
1929 for (j
= i
+ 1; j
< intermediate_results
.nelts
; ++j
)
1931 if (blocks
[j
] == blocks
[i
])
1939 for (i
= 0; i
< intermediate_results
.nelts
; ++i
)
1942 struct symbol
*sym
= (blocks
[i
]
1943 ? block_containing_function (blocks
[i
])
1946 if (self
->funfirstline
)
1947 skip_prologue_sal (&intermediate_results
.sals
[i
]);
1948 /* Make sure the line matches the request, not what was
1950 intermediate_results
.sals
[i
].line
= val
.line
;
1951 add_sal_to_sals (self
, &values
, &intermediate_results
.sals
[i
],
1952 sym
? SYMBOL_NATURAL_NAME (sym
) : NULL
, 0);
1955 do_cleanups (cleanup
);
1958 if (values
.nelts
== 0)
1960 if (ls
->explicit_loc
.source_filename
)
1961 throw_error (NOT_FOUND_ERROR
, _("No line %d in file \"%s\"."),
1962 val
.line
, ls
->explicit_loc
.source_filename
);
1964 throw_error (NOT_FOUND_ERROR
, _("No line %d in the current file."),
1971 /* Convert the given ADDRESS into SaLs. */
1973 static struct symtabs_and_lines
1974 convert_address_location_to_sals (struct linespec_state
*self
,
1977 struct symtab_and_line sal
;
1978 struct symtabs_and_lines sals
= {NULL
, 0};
1980 sal
= find_pc_line (address
, 0);
1982 sal
.section
= find_pc_overlay (address
);
1983 sal
.explicit_pc
= 1;
1984 add_sal_to_sals (self
, &sals
, &sal
, core_addr_to_string (address
), 1);
1989 /* Create and return SALs from the linespec LS. */
1991 static struct symtabs_and_lines
1992 convert_linespec_to_sals (struct linespec_state
*state
, linespec_p ls
)
1994 struct symtabs_and_lines sals
= {NULL
, 0};
1996 if (ls
->labels
.label_symbols
!= NULL
)
1998 /* We have just a bunch of functions/methods or labels. */
2000 struct symtab_and_line sal
;
2003 for (i
= 0; VEC_iterate (symbolp
, ls
->labels
.label_symbols
, i
, sym
); ++i
)
2005 struct program_space
*pspace
= SYMTAB_PSPACE (symbol_symtab (sym
));
2007 if (symbol_to_sal (&sal
, state
->funfirstline
, sym
)
2008 && maybe_add_address (state
->addr_set
, pspace
, sal
.pc
))
2009 add_sal_to_sals (state
, &sals
, &sal
,
2010 SYMBOL_NATURAL_NAME (sym
), 0);
2013 else if (ls
->function_symbols
!= NULL
|| ls
->minimal_symbols
!= NULL
)
2015 /* We have just a bunch of functions and/or methods. */
2017 struct symtab_and_line sal
;
2019 bound_minimal_symbol_d
*elem
;
2020 struct program_space
*pspace
;
2022 if (ls
->function_symbols
!= NULL
)
2024 /* Sort symbols so that symbols with the same program space are next
2026 qsort (VEC_address (symbolp
, ls
->function_symbols
),
2027 VEC_length (symbolp
, ls
->function_symbols
),
2028 sizeof (symbolp
), compare_symbols
);
2030 for (i
= 0; VEC_iterate (symbolp
, ls
->function_symbols
, i
, sym
); ++i
)
2032 pspace
= SYMTAB_PSPACE (symbol_symtab (sym
));
2033 set_current_program_space (pspace
);
2034 if (symbol_to_sal (&sal
, state
->funfirstline
, sym
)
2035 && maybe_add_address (state
->addr_set
, pspace
, sal
.pc
))
2036 add_sal_to_sals (state
, &sals
, &sal
,
2037 SYMBOL_NATURAL_NAME (sym
), 0);
2041 if (ls
->minimal_symbols
!= NULL
)
2043 /* Sort minimal symbols by program space, too. */
2044 qsort (VEC_address (bound_minimal_symbol_d
, ls
->minimal_symbols
),
2045 VEC_length (bound_minimal_symbol_d
, ls
->minimal_symbols
),
2046 sizeof (bound_minimal_symbol_d
), compare_msymbols
);
2049 VEC_iterate (bound_minimal_symbol_d
, ls
->minimal_symbols
,
2053 pspace
= elem
->objfile
->pspace
;
2054 set_current_program_space (pspace
);
2055 minsym_found (state
, elem
->objfile
, elem
->minsym
, &sals
);
2059 else if (ls
->explicit_loc
.line_offset
.sign
!= LINE_OFFSET_UNKNOWN
)
2061 /* Only an offset was specified. */
2062 sals
= create_sals_line_offset (state
, ls
);
2064 /* Make sure we have a filename for canonicalization. */
2065 if (ls
->explicit_loc
.source_filename
== NULL
)
2067 const char *fullname
= symtab_to_fullname (state
->default_symtab
);
2069 /* It may be more appropriate to keep DEFAULT_SYMTAB in its symtab
2070 form so that displaying SOURCE_FILENAME can follow the current
2071 FILENAME_DISPLAY_STRING setting. But as it is used only rarely
2072 it has been kept for code simplicity only in absolute form. */
2073 ls
->explicit_loc
.source_filename
= xstrdup (fullname
);
2078 /* We haven't found any results... */
2082 canonicalize_linespec (state
, ls
);
2084 if (sals
.nelts
> 0 && state
->canonical
!= NULL
)
2085 state
->canonical
->pre_expanded
= 1;
2090 /* Convert the explicit location EXPLICIT_LOC into SaLs. */
2092 static struct symtabs_and_lines
2093 convert_explicit_location_to_sals (struct linespec_state
*self
,
2095 const struct explicit_location
*explicit_loc
)
2097 VEC (symbolp
) *symbols
, *labels
;
2098 VEC (bound_minimal_symbol_d
) *minimal_symbols
;
2100 if (explicit_loc
->source_filename
!= NULL
)
2104 result
->file_symtabs
2105 = symtabs_from_filename (explicit_loc
->source_filename
,
2106 self
->search_pspace
);
2108 CATCH (except
, RETURN_MASK_ERROR
)
2110 source_file_not_found_error (explicit_loc
->source_filename
);
2113 result
->explicit_loc
.source_filename
2114 = xstrdup (explicit_loc
->source_filename
);
2118 /* A NULL entry means to use the default symtab. */
2119 VEC_safe_push (symtab_ptr
, result
->file_symtabs
, NULL
);
2122 if (explicit_loc
->function_name
!= NULL
)
2124 find_linespec_symbols (self
, result
->file_symtabs
,
2125 explicit_loc
->function_name
, &symbols
,
2128 if (symbols
== NULL
&& minimal_symbols
== NULL
)
2129 symbol_not_found_error (explicit_loc
->function_name
,
2130 result
->explicit_loc
.source_filename
);
2132 result
->explicit_loc
.function_name
2133 = xstrdup (explicit_loc
->function_name
);
2134 result
->function_symbols
= symbols
;
2135 result
->minimal_symbols
= minimal_symbols
;
2138 if (explicit_loc
->label_name
!= NULL
)
2141 labels
= find_label_symbols (self
, result
->function_symbols
,
2142 &symbols
, explicit_loc
->label_name
);
2145 undefined_label_error (result
->explicit_loc
.function_name
,
2146 explicit_loc
->label_name
);
2148 result
->explicit_loc
.label_name
= xstrdup (explicit_loc
->label_name
);
2149 result
->labels
.label_symbols
= labels
;
2150 result
->labels
.function_symbols
= symbols
;
2153 if (explicit_loc
->line_offset
.sign
!= LINE_OFFSET_UNKNOWN
)
2154 result
->explicit_loc
.line_offset
= explicit_loc
->line_offset
;
2156 return convert_linespec_to_sals (self
, result
);
2159 /* Parse a string that specifies a linespec.
2161 The basic grammar of linespecs:
2163 linespec -> var_spec | basic_spec
2164 var_spec -> '$' (STRING | NUMBER)
2166 basic_spec -> file_offset_spec | function_spec | label_spec
2167 file_offset_spec -> opt_file_spec offset_spec
2168 function_spec -> opt_file_spec function_name_spec opt_label_spec
2169 label_spec -> label_name_spec
2171 opt_file_spec -> "" | file_name_spec ':'
2172 opt_label_spec -> "" | ':' label_name_spec
2174 file_name_spec -> STRING
2175 function_name_spec -> STRING
2176 label_name_spec -> STRING
2177 function_name_spec -> STRING
2178 offset_spec -> NUMBER
2182 This may all be followed by several keywords such as "if EXPR",
2185 A comma will terminate parsing.
2187 The function may be an undebuggable function found in minimal symbol table.
2189 If the argument FUNFIRSTLINE is nonzero, we want the first line
2190 of real code inside a function when a function is specified, and it is
2191 not OK to specify a variable or type to get its line number.
2193 DEFAULT_SYMTAB specifies the file to use if none is specified.
2194 It defaults to current_source_symtab.
2195 DEFAULT_LINE specifies the line number to use for relative
2196 line numbers (that start with signs). Defaults to current_source_line.
2197 If CANONICAL is non-NULL, store an array of strings containing the canonical
2198 line specs there if necessary. Currently overloaded member functions and
2199 line numbers or static functions without a filename yield a canonical
2200 line spec. The array and the line spec strings are allocated on the heap,
2201 it is the callers responsibility to free them.
2203 Note that it is possible to return zero for the symtab
2204 if no file is validly specified. Callers must check that.
2205 Also, the line number returned may be invalid. */
2207 /* Parse the linespec in ARG. */
2209 static struct symtabs_and_lines
2210 parse_linespec (linespec_parser
*parser
, const char *arg
)
2212 linespec_token token
;
2213 struct symtabs_and_lines values
;
2214 struct gdb_exception file_exception
= exception_none
;
2215 struct cleanup
*cleanup
;
2217 /* A special case to start. It has become quite popular for
2218 IDEs to work around bugs in the previous parser by quoting
2219 the entire linespec, so we attempt to deal with this nicely. */
2220 parser
->is_quote_enclosed
= 0;
2221 if (!is_ada_operator (arg
)
2222 && strchr (linespec_quote_characters
, *arg
) != NULL
)
2226 end
= skip_quote_char (arg
+ 1, *arg
);
2227 if (end
!= NULL
&& is_closing_quote_enclosed (end
))
2229 /* Here's the special case. Skip ARG past the initial
2232 parser
->is_quote_enclosed
= 1;
2236 parser
->lexer
.saved_arg
= arg
;
2237 parser
->lexer
.stream
= arg
;
2239 /* Initialize the default symtab and line offset. */
2240 initialize_defaults (&PARSER_STATE (parser
)->default_symtab
,
2241 &PARSER_STATE (parser
)->default_line
);
2243 /* Objective-C shortcut. */
2244 values
= decode_objc (PARSER_STATE (parser
), PARSER_RESULT (parser
), arg
);
2245 if (values
.sals
!= NULL
)
2248 /* Start parsing. */
2250 /* Get the first token. */
2251 token
= linespec_lexer_lex_one (parser
);
2253 /* It must be either LSTOKEN_STRING or LSTOKEN_NUMBER. */
2254 if (token
.type
== LSTOKEN_STRING
&& *LS_TOKEN_STOKEN (token
).ptr
== '$')
2258 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2259 VEC_safe_push (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
, NULL
);
2261 /* User specified a convenience variable or history value. */
2262 var
= copy_token_string (token
);
2263 cleanup
= make_cleanup (xfree
, var
);
2264 PARSER_EXPLICIT (parser
)->line_offset
2265 = linespec_parse_variable (PARSER_STATE (parser
), var
);
2266 do_cleanups (cleanup
);
2268 /* If a line_offset wasn't found (VAR is the name of a user
2269 variable/function), then skip to normal symbol processing. */
2270 if (PARSER_EXPLICIT (parser
)->line_offset
.sign
!= LINE_OFFSET_UNKNOWN
)
2272 /* Consume this token. */
2273 linespec_lexer_consume_token (parser
);
2275 goto convert_to_sals
;
2278 else if (token
.type
!= LSTOKEN_STRING
&& token
.type
!= LSTOKEN_NUMBER
)
2279 unexpected_linespec_error (parser
);
2281 /* Shortcut: If the next token is not LSTOKEN_COLON, we know that
2282 this token cannot represent a filename. */
2283 token
= linespec_lexer_peek_token (parser
);
2285 if (token
.type
== LSTOKEN_COLON
)
2287 char *user_filename
;
2289 /* Get the current token again and extract the filename. */
2290 token
= linespec_lexer_lex_one (parser
);
2291 user_filename
= copy_token_string (token
);
2293 /* Check if the input is a filename. */
2296 PARSER_RESULT (parser
)->file_symtabs
2297 = symtabs_from_filename (user_filename
,
2298 PARSER_STATE (parser
)->search_pspace
);
2300 CATCH (ex
, RETURN_MASK_ERROR
)
2302 file_exception
= ex
;
2306 if (file_exception
.reason
>= 0)
2308 /* Symtabs were found for the file. Record the filename. */
2309 PARSER_EXPLICIT (parser
)->source_filename
= user_filename
;
2311 /* Get the next token. */
2312 token
= linespec_lexer_consume_token (parser
);
2314 /* This is LSTOKEN_COLON; consume it. */
2315 linespec_lexer_consume_token (parser
);
2319 /* No symtabs found -- discard user_filename. */
2320 xfree (user_filename
);
2322 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2323 VEC_safe_push (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
, NULL
);
2326 /* If the next token is not EOI, KEYWORD, or COMMA, issue an error. */
2327 else if (token
.type
!= LSTOKEN_EOI
&& token
.type
!= LSTOKEN_KEYWORD
2328 && token
.type
!= LSTOKEN_COMMA
)
2330 /* TOKEN is the _next_ token, not the one currently in the parser.
2331 Consuming the token will give the correct error message. */
2332 linespec_lexer_consume_token (parser
);
2333 unexpected_linespec_error (parser
);
2337 /* A NULL entry means to use GLOBAL_DEFAULT_SYMTAB. */
2338 VEC_safe_push (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
, NULL
);
2341 /* Parse the rest of the linespec. */
2342 linespec_parse_basic (parser
);
2344 if (PARSER_RESULT (parser
)->function_symbols
== NULL
2345 && PARSER_RESULT (parser
)->labels
.label_symbols
== NULL
2346 && PARSER_EXPLICIT (parser
)->line_offset
.sign
== LINE_OFFSET_UNKNOWN
2347 && PARSER_RESULT (parser
)->minimal_symbols
== NULL
)
2349 /* The linespec didn't parse. Re-throw the file exception if
2351 if (file_exception
.reason
< 0)
2352 throw_exception (file_exception
);
2354 /* Otherwise, the symbol is not found. */
2355 symbol_not_found_error (PARSER_EXPLICIT (parser
)->function_name
,
2356 PARSER_EXPLICIT (parser
)->source_filename
);
2361 /* Get the last token and record how much of the input was parsed,
2363 token
= linespec_lexer_lex_one (parser
);
2364 if (token
.type
!= LSTOKEN_EOI
&& token
.type
!= LSTOKEN_KEYWORD
)
2365 PARSER_STREAM (parser
) = LS_TOKEN_STOKEN (token
).ptr
;
2367 /* Convert the data in PARSER_RESULT to SALs. */
2368 values
= convert_linespec_to_sals (PARSER_STATE (parser
),
2369 PARSER_RESULT (parser
));
2375 /* A constructor for linespec_state. */
2378 linespec_state_constructor (struct linespec_state
*self
,
2379 int flags
, const struct language_defn
*language
,
2380 struct program_space
*search_pspace
,
2381 struct symtab
*default_symtab
,
2383 struct linespec_result
*canonical
)
2385 memset (self
, 0, sizeof (*self
));
2386 self
->language
= language
;
2387 self
->funfirstline
= (flags
& DECODE_LINE_FUNFIRSTLINE
) ? 1 : 0;
2388 self
->list_mode
= (flags
& DECODE_LINE_LIST_MODE
) ? 1 : 0;
2389 self
->search_pspace
= search_pspace
;
2390 self
->default_symtab
= default_symtab
;
2391 self
->default_line
= default_line
;
2392 self
->canonical
= canonical
;
2393 self
->program_space
= current_program_space
;
2394 self
->addr_set
= htab_create_alloc (10, hash_address_entry
, eq_address_entry
,
2395 xfree
, xcalloc
, xfree
);
2396 self
->is_linespec
= 0;
2399 /* Initialize a new linespec parser. */
2402 linespec_parser_new (linespec_parser
*parser
,
2403 int flags
, const struct language_defn
*language
,
2404 struct program_space
*search_pspace
,
2405 struct symtab
*default_symtab
,
2407 struct linespec_result
*canonical
)
2409 memset (parser
, 0, sizeof (linespec_parser
));
2410 parser
->lexer
.current
.type
= LSTOKEN_CONSUMED
;
2411 memset (PARSER_RESULT (parser
), 0, sizeof (struct linespec
));
2412 PARSER_EXPLICIT (parser
)->line_offset
.sign
= LINE_OFFSET_UNKNOWN
;
2413 linespec_state_constructor (PARSER_STATE (parser
), flags
, language
,
2415 default_symtab
, default_line
, canonical
);
2418 /* A destructor for linespec_state. */
2421 linespec_state_destructor (struct linespec_state
*self
)
2423 htab_delete (self
->addr_set
);
2426 /* Delete a linespec parser. */
2429 linespec_parser_delete (void *arg
)
2431 linespec_parser
*parser
= (linespec_parser
*) arg
;
2433 xfree (PARSER_EXPLICIT (parser
)->source_filename
);
2434 xfree (PARSER_EXPLICIT (parser
)->label_name
);
2435 xfree (PARSER_EXPLICIT (parser
)->function_name
);
2437 if (PARSER_RESULT (parser
)->file_symtabs
!= NULL
)
2438 VEC_free (symtab_ptr
, PARSER_RESULT (parser
)->file_symtabs
);
2440 if (PARSER_RESULT (parser
)->function_symbols
!= NULL
)
2441 VEC_free (symbolp
, PARSER_RESULT (parser
)->function_symbols
);
2443 if (PARSER_RESULT (parser
)->minimal_symbols
!= NULL
)
2444 VEC_free (bound_minimal_symbol_d
, PARSER_RESULT (parser
)->minimal_symbols
);
2446 if (PARSER_RESULT (parser
)->labels
.label_symbols
!= NULL
)
2447 VEC_free (symbolp
, PARSER_RESULT (parser
)->labels
.label_symbols
);
2449 if (PARSER_RESULT (parser
)->labels
.function_symbols
!= NULL
)
2450 VEC_free (symbolp
, PARSER_RESULT (parser
)->labels
.function_symbols
);
2452 linespec_state_destructor (PARSER_STATE (parser
));
2455 /* See description in linespec.h. */
2458 linespec_lex_to_end (char **stringp
)
2460 linespec_parser parser
;
2461 struct cleanup
*cleanup
;
2462 linespec_token token
;
2465 if (stringp
== NULL
|| *stringp
== NULL
)
2468 linespec_parser_new (&parser
, 0, current_language
, NULL
, NULL
, 0, NULL
);
2469 cleanup
= make_cleanup (linespec_parser_delete
, &parser
);
2470 parser
.lexer
.saved_arg
= *stringp
;
2471 PARSER_STREAM (&parser
) = orig
= *stringp
;
2475 /* Stop before any comma tokens; we need it to keep it
2476 as the next token in the string. */
2477 token
= linespec_lexer_peek_token (&parser
);
2478 if (token
.type
== LSTOKEN_COMMA
)
2480 token
= linespec_lexer_consume_token (&parser
);
2482 while (token
.type
!= LSTOKEN_EOI
&& token
.type
!= LSTOKEN_KEYWORD
);
2484 *stringp
+= PARSER_STREAM (&parser
) - orig
;
2485 do_cleanups (cleanup
);
2488 /* A helper function for decode_line_full and decode_line_1 to
2489 turn LOCATION into symtabs_and_lines. */
2491 static struct symtabs_and_lines
2492 event_location_to_sals (linespec_parser
*parser
,
2493 const struct event_location
*location
)
2495 struct symtabs_and_lines result
= {NULL
, 0};
2497 switch (event_location_type (location
))
2499 case LINESPEC_LOCATION
:
2501 PARSER_STATE (parser
)->is_linespec
= 1;
2504 result
= parse_linespec (parser
, get_linespec_location (location
));
2506 CATCH (except
, RETURN_MASK_ERROR
)
2508 throw_exception (except
);
2514 case ADDRESS_LOCATION
:
2516 = convert_address_location_to_sals (PARSER_STATE (parser
),
2517 get_address_location (location
));
2520 case EXPLICIT_LOCATION
:
2522 const struct explicit_location
*explicit_loc
;
2524 explicit_loc
= get_explicit_location_const (location
);
2525 result
= convert_explicit_location_to_sals (PARSER_STATE (parser
),
2526 PARSER_RESULT (parser
),
2531 case PROBE_LOCATION
:
2532 /* Probes are handled by their own decoders. */
2533 gdb_assert_not_reached ("attempt to decode probe location");
2537 gdb_assert_not_reached ("unhandled event location type");
2543 /* See linespec.h. */
2546 decode_line_full (const struct event_location
*location
, int flags
,
2547 struct program_space
*search_pspace
,
2548 struct symtab
*default_symtab
,
2549 int default_line
, struct linespec_result
*canonical
,
2550 const char *select_mode
,
2553 struct symtabs_and_lines result
;
2554 struct cleanup
*cleanups
;
2555 VEC (const_char_ptr
) *filters
= NULL
;
2556 linespec_parser parser
;
2557 struct linespec_state
*state
;
2559 gdb_assert (canonical
!= NULL
);
2560 /* The filter only makes sense for 'all'. */
2561 gdb_assert (filter
== NULL
|| select_mode
== multiple_symbols_all
);
2562 gdb_assert (select_mode
== NULL
2563 || select_mode
== multiple_symbols_all
2564 || select_mode
== multiple_symbols_ask
2565 || select_mode
== multiple_symbols_cancel
);
2566 gdb_assert ((flags
& DECODE_LINE_LIST_MODE
) == 0);
2568 linespec_parser_new (&parser
, flags
, current_language
,
2569 search_pspace
, default_symtab
,
2570 default_line
, canonical
);
2571 cleanups
= make_cleanup (linespec_parser_delete
, &parser
);
2572 save_current_program_space ();
2574 result
= event_location_to_sals (&parser
, location
);
2575 state
= PARSER_STATE (&parser
);
2577 gdb_assert (result
.nelts
== 1 || canonical
->pre_expanded
);
2578 canonical
->pre_expanded
= 1;
2580 /* Arrange for allocated canonical names to be freed. */
2581 if (result
.nelts
> 0)
2585 make_cleanup (xfree
, state
->canonical_names
);
2586 for (i
= 0; i
< result
.nelts
; ++i
)
2588 gdb_assert (state
->canonical_names
[i
].suffix
!= NULL
);
2589 make_cleanup (xfree
, state
->canonical_names
[i
].suffix
);
2593 if (select_mode
== NULL
)
2595 if (ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ())))
2596 select_mode
= multiple_symbols_all
;
2598 select_mode
= multiple_symbols_select_mode ();
2601 if (select_mode
== multiple_symbols_all
)
2605 make_cleanup (VEC_cleanup (const_char_ptr
), &filters
);
2606 VEC_safe_push (const_char_ptr
, filters
, filter
);
2607 filter_results (state
, &result
, filters
);
2610 convert_results_to_lsals (state
, &result
);
2613 decode_line_2 (state
, &result
, select_mode
);
2615 do_cleanups (cleanups
);
2618 /* See linespec.h. */
2620 struct symtabs_and_lines
2621 decode_line_1 (const struct event_location
*location
, int flags
,
2622 struct program_space
*search_pspace
,
2623 struct symtab
*default_symtab
,
2626 struct symtabs_and_lines result
;
2627 linespec_parser parser
;
2628 struct cleanup
*cleanups
;
2630 linespec_parser_new (&parser
, flags
, current_language
,
2631 search_pspace
, default_symtab
,
2632 default_line
, NULL
);
2633 cleanups
= make_cleanup (linespec_parser_delete
, &parser
);
2634 save_current_program_space ();
2636 result
= event_location_to_sals (&parser
, location
);
2638 do_cleanups (cleanups
);
2642 /* See linespec.h. */
2644 struct symtabs_and_lines
2645 decode_line_with_current_source (char *string
, int flags
)
2647 struct symtabs_and_lines sals
;
2648 struct symtab_and_line cursal
;
2649 struct event_location
*location
;
2650 struct cleanup
*cleanup
;
2653 error (_("Empty line specification."));
2655 /* We use whatever is set as the current source line. We do not try
2656 and get a default source symtab+line or it will recursively call us! */
2657 cursal
= get_current_source_symtab_and_line ();
2659 location
= string_to_event_location (&string
, current_language
);
2660 cleanup
= make_cleanup_delete_event_location (location
);
2661 sals
= decode_line_1 (location
, flags
, NULL
,
2662 cursal
.symtab
, cursal
.line
);
2665 error (_("Junk at end of line specification: %s"), string
);
2667 do_cleanups (cleanup
);
2671 /* See linespec.h. */
2673 struct symtabs_and_lines
2674 decode_line_with_last_displayed (char *string
, int flags
)
2676 struct symtabs_and_lines sals
;
2677 struct event_location
*location
;
2678 struct cleanup
*cleanup
;
2681 error (_("Empty line specification."));
2683 location
= string_to_event_location (&string
, current_language
);
2684 cleanup
= make_cleanup_delete_event_location (location
);
2685 if (last_displayed_sal_is_valid ())
2686 sals
= decode_line_1 (location
, flags
, NULL
,
2687 get_last_displayed_symtab (),
2688 get_last_displayed_line ());
2690 sals
= decode_line_1 (location
, flags
, NULL
, (struct symtab
*) NULL
, 0);
2693 error (_("Junk at end of line specification: %s"), string
);
2695 do_cleanups (cleanup
);
2701 /* First, some functions to initialize stuff at the beggining of the
2705 initialize_defaults (struct symtab
**default_symtab
, int *default_line
)
2707 if (*default_symtab
== 0)
2709 /* Use whatever we have for the default source line. We don't use
2710 get_current_or_default_symtab_and_line as it can recurse and call
2712 struct symtab_and_line cursal
=
2713 get_current_source_symtab_and_line ();
2715 *default_symtab
= cursal
.symtab
;
2716 *default_line
= cursal
.line
;
2722 /* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR,
2723 advancing EXP_PTR past any parsed text. */
2726 linespec_expression_to_pc (const char **exp_ptr
)
2728 if (current_program_space
->executing_startup
)
2729 /* The error message doesn't really matter, because this case
2730 should only hit during breakpoint reset. */
2731 throw_error (NOT_FOUND_ERROR
, _("cannot evaluate expressions while "
2732 "program space is in startup"));
2735 return value_as_address (parse_to_comma_and_eval (exp_ptr
));
2740 /* Here's where we recognise an Objective-C Selector. An Objective C
2741 selector may be implemented by more than one class, therefore it
2742 may represent more than one method/function. This gives us a
2743 situation somewhat analogous to C++ overloading. If there's more
2744 than one method that could represent the selector, then use some of
2745 the existing C++ code to let the user choose one. */
2747 static struct symtabs_and_lines
2748 decode_objc (struct linespec_state
*self
, linespec_p ls
, const char *arg
)
2750 struct collect_info info
;
2751 VEC (const_char_ptr
) *symbol_names
= NULL
;
2752 struct symtabs_and_lines values
;
2753 const char *new_argptr
;
2754 struct cleanup
*cleanup
= make_cleanup (VEC_cleanup (const_char_ptr
),
2758 info
.file_symtabs
= NULL
;
2759 VEC_safe_push (symtab_ptr
, info
.file_symtabs
, NULL
);
2760 make_cleanup (VEC_cleanup (symtab_ptr
), &info
.file_symtabs
);
2761 info
.result
.symbols
= NULL
;
2762 info
.result
.minimal_symbols
= NULL
;
2766 new_argptr
= find_imps (arg
, &symbol_names
);
2767 if (VEC_empty (const_char_ptr
, symbol_names
))
2769 do_cleanups (cleanup
);
2773 add_all_symbol_names_from_pspace (&info
, NULL
, symbol_names
);
2775 if (!VEC_empty (symbolp
, info
.result
.symbols
)
2776 || !VEC_empty (bound_minimal_symbol_d
, info
.result
.minimal_symbols
))
2780 saved_arg
= (char *) alloca (new_argptr
- arg
+ 1);
2781 memcpy (saved_arg
, arg
, new_argptr
- arg
);
2782 saved_arg
[new_argptr
- arg
] = '\0';
2784 ls
->explicit_loc
.function_name
= xstrdup (saved_arg
);
2785 ls
->function_symbols
= info
.result
.symbols
;
2786 ls
->minimal_symbols
= info
.result
.minimal_symbols
;
2787 values
= convert_linespec_to_sals (self
, ls
);
2789 if (self
->canonical
)
2793 self
->canonical
->pre_expanded
= 1;
2795 if (ls
->explicit_loc
.source_filename
)
2797 str
= xstrprintf ("%s:%s",
2798 ls
->explicit_loc
.source_filename
, saved_arg
);
2801 str
= xstrdup (saved_arg
);
2803 make_cleanup (xfree
, str
);
2804 self
->canonical
->location
= new_linespec_location (&str
);
2808 do_cleanups (cleanup
);
2813 /* An instance of this type is used when collecting prefix symbols for
2816 struct decode_compound_collector
2818 /* The result vector. */
2819 VEC (symbolp
) *symbols
;
2821 /* A hash table of all symbols we found. We use this to avoid
2822 adding any symbol more than once. */
2826 /* A callback for iterate_over_symbols that is used by
2827 lookup_prefix_sym to collect type symbols. */
2830 collect_one_symbol (struct symbol
*sym
, void *d
)
2832 struct decode_compound_collector
*collector
2833 = (struct decode_compound_collector
*) d
;
2837 if (SYMBOL_CLASS (sym
) != LOC_TYPEDEF
)
2838 return 1; /* Continue iterating. */
2840 t
= SYMBOL_TYPE (sym
);
2841 t
= check_typedef (t
);
2842 if (TYPE_CODE (t
) != TYPE_CODE_STRUCT
2843 && TYPE_CODE (t
) != TYPE_CODE_UNION
2844 && TYPE_CODE (t
) != TYPE_CODE_NAMESPACE
)
2845 return 1; /* Continue iterating. */
2847 slot
= htab_find_slot (collector
->unique_syms
, sym
, INSERT
);
2851 VEC_safe_push (symbolp
, collector
->symbols
, sym
);
2854 return 1; /* Continue iterating. */
2857 /* Return any symbols corresponding to CLASS_NAME in FILE_SYMTABS. */
2859 static VEC (symbolp
) *
2860 lookup_prefix_sym (struct linespec_state
*state
, VEC (symtab_ptr
) *file_symtabs
,
2861 const char *class_name
)
2865 struct decode_compound_collector collector
;
2866 struct cleanup
*outer
;
2867 struct cleanup
*cleanup
;
2869 collector
.symbols
= NULL
;
2870 outer
= make_cleanup (VEC_cleanup (symbolp
), &collector
.symbols
);
2872 collector
.unique_syms
= htab_create_alloc (1, htab_hash_pointer
,
2873 htab_eq_pointer
, NULL
,
2875 cleanup
= make_cleanup_htab_delete (collector
.unique_syms
);
2877 for (ix
= 0; VEC_iterate (symtab_ptr
, file_symtabs
, ix
, elt
); ++ix
)
2881 iterate_over_all_matching_symtabs (state
, class_name
, STRUCT_DOMAIN
,
2882 collect_one_symbol
, &collector
,
2884 iterate_over_all_matching_symtabs (state
, class_name
, VAR_DOMAIN
,
2885 collect_one_symbol
, &collector
,
2890 /* Program spaces that are executing startup should have
2891 been filtered out earlier. */
2892 gdb_assert (!SYMTAB_PSPACE (elt
)->executing_startup
);
2893 set_current_program_space (SYMTAB_PSPACE (elt
));
2894 iterate_over_file_blocks (elt
, class_name
, STRUCT_DOMAIN
,
2895 collect_one_symbol
, &collector
);
2896 iterate_over_file_blocks (elt
, class_name
, VAR_DOMAIN
,
2897 collect_one_symbol
, &collector
);
2901 do_cleanups (cleanup
);
2902 discard_cleanups (outer
);
2903 return collector
.symbols
;
2906 /* A qsort comparison function for symbols. The resulting order does
2907 not actually matter; we just need to be able to sort them so that
2908 symbols with the same program space end up next to each other. */
2911 compare_symbols (const void *a
, const void *b
)
2913 struct symbol
* const *sa
= (struct symbol
* const*) a
;
2914 struct symbol
* const *sb
= (struct symbol
* const*) b
;
2917 uia
= (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sa
));
2918 uib
= (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sb
));
2925 uia
= (uintptr_t) *sa
;
2926 uib
= (uintptr_t) *sb
;
2936 /* Like compare_symbols but for minimal symbols. */
2939 compare_msymbols (const void *a
, const void *b
)
2941 const struct bound_minimal_symbol
*sa
2942 = (const struct bound_minimal_symbol
*) a
;
2943 const struct bound_minimal_symbol
*sb
2944 = (const struct bound_minimal_symbol
*) b
;
2947 uia
= (uintptr_t) sa
->objfile
->pspace
;
2948 uib
= (uintptr_t) sa
->objfile
->pspace
;
2955 uia
= (uintptr_t) sa
->minsym
;
2956 uib
= (uintptr_t) sb
->minsym
;
2966 /* Look for all the matching instances of each symbol in NAMES. Only
2967 instances from PSPACE are considered; other program spaces are
2968 handled by our caller. If PSPACE is NULL, then all program spaces
2969 are considered. Results are stored into INFO. */
2972 add_all_symbol_names_from_pspace (struct collect_info
*info
,
2973 struct program_space
*pspace
,
2974 VEC (const_char_ptr
) *names
)
2979 for (ix
= 0; VEC_iterate (const_char_ptr
, names
, ix
, iter
); ++ix
)
2980 add_matching_symbols_to_info (iter
, info
, pspace
);
2984 find_superclass_methods (VEC (typep
) *superclasses
,
2986 VEC (const_char_ptr
) **result_names
)
2988 int old_len
= VEC_length (const_char_ptr
, *result_names
);
2989 VEC (typep
) *iter_classes
;
2990 struct cleanup
*cleanup
= make_cleanup (null_cleanup
, NULL
);
2992 iter_classes
= superclasses
;
2995 VEC (typep
) *new_supers
= NULL
;
2999 make_cleanup (VEC_cleanup (typep
), &new_supers
);
3000 for (ix
= 0; VEC_iterate (typep
, iter_classes
, ix
, t
); ++ix
)
3001 find_methods (t
, name
, result_names
, &new_supers
);
3003 if (VEC_length (const_char_ptr
, *result_names
) != old_len
3004 || VEC_empty (typep
, new_supers
))
3007 iter_classes
= new_supers
;
3010 do_cleanups (cleanup
);
3013 /* This finds the method METHOD_NAME in the class CLASS_NAME whose type is
3014 given by one of the symbols in SYM_CLASSES. Matches are returned
3015 in SYMBOLS (for debug symbols) and MINSYMS (for minimal symbols). */
3018 find_method (struct linespec_state
*self
, VEC (symtab_ptr
) *file_symtabs
,
3019 const char *class_name
, const char *method_name
,
3020 VEC (symbolp
) *sym_classes
, VEC (symbolp
) **symbols
,
3021 VEC (bound_minimal_symbol_d
) **minsyms
)
3024 struct cleanup
*cleanup
= make_cleanup (null_cleanup
, NULL
);
3026 int last_result_len
;
3027 VEC (typep
) *superclass_vec
;
3028 VEC (const_char_ptr
) *result_names
;
3029 struct collect_info info
;
3031 /* Sort symbols so that symbols with the same program space are next
3033 qsort (VEC_address (symbolp
, sym_classes
),
3034 VEC_length (symbolp
, sym_classes
),
3039 info
.file_symtabs
= file_symtabs
;
3040 info
.result
.symbols
= NULL
;
3041 info
.result
.minimal_symbols
= NULL
;
3043 /* Iterate over all the types, looking for the names of existing
3044 methods matching METHOD_NAME. If we cannot find a direct method in a
3045 given program space, then we consider inherited methods; this is
3046 not ideal (ideal would be to respect C++ hiding rules), but it
3047 seems good enough and is what GDB has historically done. We only
3048 need to collect the names because later we find all symbols with
3049 those names. This loop is written in a somewhat funny way
3050 because we collect data across the program space before deciding
3052 superclass_vec
= NULL
;
3053 make_cleanup (VEC_cleanup (typep
), &superclass_vec
);
3054 result_names
= NULL
;
3055 make_cleanup (VEC_cleanup (const_char_ptr
), &result_names
);
3056 last_result_len
= 0;
3057 for (ix
= 0; VEC_iterate (symbolp
, sym_classes
, ix
, sym
); ++ix
)
3060 struct program_space
*pspace
;
3062 /* Program spaces that are executing startup should have
3063 been filtered out earlier. */
3064 pspace
= SYMTAB_PSPACE (symbol_symtab (sym
));
3065 gdb_assert (!pspace
->executing_startup
);
3066 set_current_program_space (pspace
);
3067 t
= check_typedef (SYMBOL_TYPE (sym
));
3068 find_methods (t
, method_name
, &result_names
, &superclass_vec
);
3070 /* Handle all items from a single program space at once; and be
3071 sure not to miss the last batch. */
3072 if (ix
== VEC_length (symbolp
, sym_classes
) - 1
3074 != SYMTAB_PSPACE (symbol_symtab (VEC_index (symbolp
, sym_classes
,
3077 /* If we did not find a direct implementation anywhere in
3078 this program space, consider superclasses. */
3079 if (VEC_length (const_char_ptr
, result_names
) == last_result_len
)
3080 find_superclass_methods (superclass_vec
, method_name
,
3083 /* We have a list of candidate symbol names, so now we
3084 iterate over the symbol tables looking for all
3085 matches in this pspace. */
3086 add_all_symbol_names_from_pspace (&info
, pspace
, result_names
);
3088 VEC_truncate (typep
, superclass_vec
, 0);
3089 last_result_len
= VEC_length (const_char_ptr
, result_names
);
3093 if (!VEC_empty (symbolp
, info
.result
.symbols
)
3094 || !VEC_empty (bound_minimal_symbol_d
, info
.result
.minimal_symbols
))
3096 *symbols
= info
.result
.symbols
;
3097 *minsyms
= info
.result
.minimal_symbols
;
3098 do_cleanups (cleanup
);
3102 /* Throw an NOT_FOUND_ERROR. This will be caught by the caller
3103 and other attempts to locate the symbol will be made. */
3104 throw_error (NOT_FOUND_ERROR
, _("see caller, this text doesn't matter"));
3109 /* This object is used when collecting all matching symtabs. */
3111 struct symtab_collector
3113 /* The result vector of symtabs. */
3114 VEC (symtab_ptr
) *symtabs
;
3116 /* This is used to ensure the symtabs are unique. */
3117 htab_t symtab_table
;
3120 /* Callback for iterate_over_symtabs. */
3123 add_symtabs_to_list (struct symtab
*symtab
, void *d
)
3125 struct symtab_collector
*data
= (struct symtab_collector
*) d
;
3128 slot
= htab_find_slot (data
->symtab_table
, symtab
, INSERT
);
3132 VEC_safe_push (symtab_ptr
, data
->symtabs
, symtab
);
3138 /* Given a file name, return a VEC of all matching symtabs. If
3139 SEARCH_PSPACE is not NULL, the search is restricted to just that
3142 static VEC (symtab_ptr
) *
3143 collect_symtabs_from_filename (const char *file
,
3144 struct program_space
*search_pspace
)
3146 struct symtab_collector collector
;
3147 struct cleanup
*cleanups
;
3148 struct program_space
*pspace
;
3150 collector
.symtabs
= NULL
;
3151 collector
.symtab_table
= htab_create (1, htab_hash_pointer
, htab_eq_pointer
,
3153 cleanups
= make_cleanup_htab_delete (collector
.symtab_table
);
3155 /* Find that file's data. */
3156 if (search_pspace
== NULL
)
3158 ALL_PSPACES (pspace
)
3160 if (pspace
->executing_startup
)
3163 set_current_program_space (pspace
);
3164 iterate_over_symtabs (file
, add_symtabs_to_list
, &collector
);
3169 set_current_program_space (search_pspace
);
3170 iterate_over_symtabs (file
, add_symtabs_to_list
, &collector
);
3173 do_cleanups (cleanups
);
3174 return collector
.symtabs
;
3177 /* Return all the symtabs associated to the FILENAME. If SEARCH_PSPACE is
3178 not NULL, the search is restricted to just that program space. */
3180 static VEC (symtab_ptr
) *
3181 symtabs_from_filename (const char *filename
,
3182 struct program_space
*search_pspace
)
3184 VEC (symtab_ptr
) *result
;
3186 result
= collect_symtabs_from_filename (filename
, search_pspace
);
3188 if (VEC_empty (symtab_ptr
, result
))
3190 if (!have_full_symbols () && !have_partial_symbols ())
3191 throw_error (NOT_FOUND_ERROR
,
3192 _("No symbol table is loaded. "
3193 "Use the \"file\" command."));
3194 source_file_not_found_error (filename
);
3200 /* Look up a function symbol named NAME in symtabs FILE_SYMTABS. Matching
3201 debug symbols are returned in SYMBOLS. Matching minimal symbols are
3202 returned in MINSYMS. */
3205 find_function_symbols (struct linespec_state
*state
,
3206 VEC (symtab_ptr
) *file_symtabs
, const char *name
,
3207 VEC (symbolp
) **symbols
,
3208 VEC (bound_minimal_symbol_d
) **minsyms
)
3210 struct collect_info info
;
3211 VEC (const_char_ptr
) *symbol_names
= NULL
;
3212 struct cleanup
*cleanup
= make_cleanup (VEC_cleanup (const_char_ptr
),
3216 info
.result
.symbols
= NULL
;
3217 info
.result
.minimal_symbols
= NULL
;
3218 info
.file_symtabs
= file_symtabs
;
3220 /* Try NAME as an Objective-C selector. */
3221 find_imps (name
, &symbol_names
);
3222 if (!VEC_empty (const_char_ptr
, symbol_names
))
3223 add_all_symbol_names_from_pspace (&info
, state
->search_pspace
,
3226 add_matching_symbols_to_info (name
, &info
, state
->search_pspace
);
3228 do_cleanups (cleanup
);
3230 if (VEC_empty (symbolp
, info
.result
.symbols
))
3232 VEC_free (symbolp
, info
.result
.symbols
);
3236 *symbols
= info
.result
.symbols
;
3238 if (VEC_empty (bound_minimal_symbol_d
, info
.result
.minimal_symbols
))
3240 VEC_free (bound_minimal_symbol_d
, info
.result
.minimal_symbols
);
3244 *minsyms
= info
.result
.minimal_symbols
;
3247 /* Find all symbols named NAME in FILE_SYMTABS, returning debug symbols
3248 in SYMBOLS and minimal symbols in MINSYMS. */
3251 find_linespec_symbols (struct linespec_state
*state
,
3252 VEC (symtab_ptr
) *file_symtabs
,
3254 VEC (symbolp
) **symbols
,
3255 VEC (bound_minimal_symbol_d
) **minsyms
)
3257 struct cleanup
*cleanup
;
3259 const char *lookup_name
;
3261 cleanup
= demangle_for_lookup (name
, state
->language
->la_language
,
3263 if (state
->language
->la_language
== language_ada
)
3265 /* In Ada, the symbol lookups are performed using the encoded
3266 name rather than the demangled name. */
3267 lookup_name
= ada_name_for_lookup (name
);
3268 make_cleanup (xfree
, (void *) lookup_name
);
3271 canon
= cp_canonicalize_string_no_typedefs (lookup_name
);
3274 lookup_name
= canon
;
3275 make_cleanup (xfree
, canon
);
3278 /* It's important to not call expand_symtabs_matching unnecessarily
3279 as it can really slow things down (by unnecessarily expanding
3280 potentially 1000s of symtabs, which when debugging some apps can
3281 cost 100s of seconds). Avoid this to some extent by *first* calling
3282 find_function_symbols, and only if that doesn't find anything
3283 *then* call find_method. This handles two important cases:
3284 1) break (anonymous namespace)::foo
3285 2) break class::method where method is in class (and not a baseclass) */
3287 find_function_symbols (state
, file_symtabs
, lookup_name
,
3290 /* If we were unable to locate a symbol of the same name, try dividing
3291 the name into class and method names and searching the class and its
3293 if (VEC_empty (symbolp
, *symbols
)
3294 && VEC_empty (bound_minimal_symbol_d
, *minsyms
))
3296 char *klass
, *method
;
3297 const char *last
, *p
, *scope_op
;
3298 VEC (symbolp
) *classes
;
3300 /* See if we can find a scope operator and break this symbol
3301 name into namespaces${SCOPE_OPERATOR}class_name and method_name. */
3303 p
= find_toplevel_string (lookup_name
, scope_op
);
3306 /* No C++ scope operator. Try Java. */
3308 p
= find_toplevel_string (lookup_name
, scope_op
);
3315 p
= find_toplevel_string (p
+ strlen (scope_op
), scope_op
);
3318 /* If no scope operator was found, there is nothing more we can do;
3319 we already attempted to lookup the entire name as a symbol
3323 do_cleanups (cleanup
);
3327 /* LOOKUP_NAME points to the class name.
3328 LAST points to the method name. */
3329 klass
= XNEWVEC (char, last
- lookup_name
+ 1);
3330 make_cleanup (xfree
, klass
);
3331 strncpy (klass
, lookup_name
, last
- lookup_name
);
3332 klass
[last
- lookup_name
] = '\0';
3334 /* Skip past the scope operator. */
3335 last
+= strlen (scope_op
);
3336 method
= XNEWVEC (char, strlen (last
) + 1);
3337 make_cleanup (xfree
, method
);
3338 strcpy (method
, last
);
3340 /* Find a list of classes named KLASS. */
3341 classes
= lookup_prefix_sym (state
, file_symtabs
, klass
);
3342 make_cleanup (VEC_cleanup (symbolp
), &classes
);
3344 if (!VEC_empty (symbolp
, classes
))
3346 /* Now locate a list of suitable methods named METHOD. */
3349 find_method (state
, file_symtabs
, klass
, method
, classes
,
3353 /* If successful, we're done. If NOT_FOUND_ERROR
3354 was not thrown, rethrow the exception that we did get. */
3355 CATCH (except
, RETURN_MASK_ERROR
)
3357 if (except
.error
!= NOT_FOUND_ERROR
)
3358 throw_exception (except
);
3364 do_cleanups (cleanup
);
3367 /* Return all labels named NAME in FUNCTION_SYMBOLS. Return the
3368 actual function symbol in which the label was found in LABEL_FUNC_RET. */
3370 static VEC (symbolp
) *
3371 find_label_symbols (struct linespec_state
*self
,
3372 VEC (symbolp
) *function_symbols
,
3373 VEC (symbolp
) **label_funcs_ret
, const char *name
)
3376 const struct block
*block
;
3378 struct symbol
*fn_sym
;
3379 VEC (symbolp
) *result
= NULL
;
3381 if (function_symbols
== NULL
)
3383 set_current_program_space (self
->program_space
);
3384 block
= get_current_search_block ();
3387 block
&& !BLOCK_FUNCTION (block
);
3388 block
= BLOCK_SUPERBLOCK (block
))
3392 fn_sym
= BLOCK_FUNCTION (block
);
3394 sym
= lookup_symbol (name
, block
, LABEL_DOMAIN
, 0).symbol
;
3398 VEC_safe_push (symbolp
, result
, sym
);
3399 VEC_safe_push (symbolp
, *label_funcs_ret
, fn_sym
);
3405 VEC_iterate (symbolp
, function_symbols
, ix
, fn_sym
); ++ix
)
3407 set_current_program_space (SYMTAB_PSPACE (symbol_symtab (fn_sym
)));
3408 block
= SYMBOL_BLOCK_VALUE (fn_sym
);
3409 sym
= lookup_symbol (name
, block
, LABEL_DOMAIN
, 0).symbol
;
3413 VEC_safe_push (symbolp
, result
, sym
);
3414 VEC_safe_push (symbolp
, *label_funcs_ret
, fn_sym
);
3424 /* A helper for create_sals_line_offset that handles the 'list_mode' case. */
3427 decode_digits_list_mode (struct linespec_state
*self
,
3429 struct symtabs_and_lines
*values
,
3430 struct symtab_and_line val
)
3435 gdb_assert (self
->list_mode
);
3437 for (ix
= 0; VEC_iterate (symtab_ptr
, ls
->file_symtabs
, ix
, elt
);
3440 /* The logic above should ensure this. */
3441 gdb_assert (elt
!= NULL
);
3443 set_current_program_space (SYMTAB_PSPACE (elt
));
3445 /* Simplistic search just for the list command. */
3446 val
.symtab
= find_line_symtab (elt
, val
.line
, NULL
, NULL
);
3447 if (val
.symtab
== NULL
)
3449 val
.pspace
= SYMTAB_PSPACE (elt
);
3451 val
.explicit_line
= 1;
3453 add_sal_to_sals (self
, values
, &val
, NULL
, 0);
3457 /* A helper for create_sals_line_offset that iterates over the symtabs,
3458 adding lines to the VEC. */
3461 decode_digits_ordinary (struct linespec_state
*self
,
3464 struct symtabs_and_lines
*sals
,
3465 struct linetable_entry
**best_entry
)
3470 for (ix
= 0; VEC_iterate (symtab_ptr
, ls
->file_symtabs
, ix
, elt
); ++ix
)
3473 VEC (CORE_ADDR
) *pcs
;
3476 /* The logic above should ensure this. */
3477 gdb_assert (elt
!= NULL
);
3479 set_current_program_space (SYMTAB_PSPACE (elt
));
3481 pcs
= find_pcs_for_symtab_line (elt
, line
, best_entry
);
3482 for (i
= 0; VEC_iterate (CORE_ADDR
, pcs
, i
, pc
); ++i
)
3484 struct symtab_and_line sal
;
3487 sal
.pspace
= SYMTAB_PSPACE (elt
);
3491 add_sal_to_sals_basic (sals
, &sal
);
3494 VEC_free (CORE_ADDR
, pcs
);
3500 /* Return the line offset represented by VARIABLE. */
3502 static struct line_offset
3503 linespec_parse_variable (struct linespec_state
*self
, const char *variable
)
3507 struct line_offset offset
= {0, LINE_OFFSET_NONE
};
3509 p
= (variable
[1] == '$') ? variable
+ 2 : variable
+ 1;
3512 while (*p
>= '0' && *p
<= '9')
3514 if (!*p
) /* Reached end of token without hitting non-digit. */
3516 /* We have a value history reference. */
3517 struct value
*val_history
;
3519 sscanf ((variable
[1] == '$') ? variable
+ 2 : variable
+ 1, "%d", &index
);
3521 = access_value_history ((variable
[1] == '$') ? -index
: index
);
3522 if (TYPE_CODE (value_type (val_history
)) != TYPE_CODE_INT
)
3523 error (_("History values used in line "
3524 "specs must have integer values."));
3525 offset
.offset
= value_as_long (val_history
);
3529 /* Not all digits -- may be user variable/function or a
3530 convenience variable. */
3532 struct internalvar
*ivar
;
3534 /* Try it as a convenience variable. If it is not a convenience
3535 variable, return and allow normal symbol lookup to occur. */
3536 ivar
= lookup_only_internalvar (variable
+ 1);
3538 /* No internal variable with that name. Mark the offset
3539 as unknown to allow the name to be looked up as a symbol. */
3540 offset
.sign
= LINE_OFFSET_UNKNOWN
;
3543 /* We found a valid variable name. If it is not an integer,
3545 if (!get_internalvar_integer (ivar
, &valx
))
3546 error (_("Convenience variables used in line "
3547 "specs must have integer values."));
3549 offset
.offset
= valx
;
3557 /* A callback used to possibly add a symbol to the results. */
3560 collect_symbols (struct symbol
*sym
, void *data
)
3562 struct collect_info
*info
= (struct collect_info
*) data
;
3564 /* In list mode, add all matching symbols, regardless of class.
3565 This allows the user to type "list a_global_variable". */
3566 if (SYMBOL_CLASS (sym
) == LOC_BLOCK
|| info
->state
->list_mode
)
3567 VEC_safe_push (symbolp
, info
->result
.symbols
, sym
);
3568 return 1; /* Continue iterating. */
3571 /* We've found a minimal symbol MSYMBOL in OBJFILE to associate with our
3572 linespec; return the SAL in RESULT. This function should return SALs
3573 matching those from find_function_start_sal, otherwise false
3574 multiple-locations breakpoints could be placed. */
3577 minsym_found (struct linespec_state
*self
, struct objfile
*objfile
,
3578 struct minimal_symbol
*msymbol
,
3579 struct symtabs_and_lines
*result
)
3581 struct gdbarch
*gdbarch
= get_objfile_arch (objfile
);
3583 struct symtab_and_line sal
;
3585 sal
= find_pc_sect_line (MSYMBOL_VALUE_ADDRESS (objfile
, msymbol
),
3586 (struct obj_section
*) 0, 0);
3587 sal
.section
= MSYMBOL_OBJ_SECTION (objfile
, msymbol
);
3589 /* The minimal symbol might point to a function descriptor;
3590 resolve it to the actual code address instead. */
3591 pc
= gdbarch_convert_from_func_ptr_addr (gdbarch
, sal
.pc
, ¤t_target
);
3593 sal
= find_pc_sect_line (pc
, NULL
, 0);
3595 if (self
->funfirstline
)
3597 if (sal
.symtab
!= NULL
3598 && (COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (sal
.symtab
))
3599 || SYMTAB_LANGUAGE (sal
.symtab
) == language_asm
))
3601 /* If gdbarch_convert_from_func_ptr_addr does not apply then
3602 sal.SECTION, sal.LINE&co. will stay correct from above.
3603 If gdbarch_convert_from_func_ptr_addr applies then
3604 sal.SECTION is cleared from above and sal.LINE&co. will
3605 stay correct from the last find_pc_sect_line above. */
3606 sal
.pc
= MSYMBOL_VALUE_ADDRESS (objfile
, msymbol
);
3607 sal
.pc
= gdbarch_convert_from_func_ptr_addr (gdbarch
, sal
.pc
,
3609 if (gdbarch_skip_entrypoint_p (gdbarch
))
3610 sal
.pc
= gdbarch_skip_entrypoint (gdbarch
, sal
.pc
);
3613 skip_prologue_sal (&sal
);
3616 if (maybe_add_address (self
->addr_set
, objfile
->pspace
, sal
.pc
))
3617 add_sal_to_sals (self
, result
, &sal
, MSYMBOL_NATURAL_NAME (msymbol
), 0);
3620 /* A helper struct to pass some data through
3621 iterate_over_minimal_symbols. */
3623 struct collect_minsyms
3625 /* The objfile we're examining. */
3626 struct objfile
*objfile
;
3628 /* Only search the given symtab, or NULL to search for all symbols. */
3629 struct symtab
*symtab
;
3631 /* The funfirstline setting from the initial call. */
3634 /* The list_mode setting from the initial call. */
3637 /* The resulting symbols. */
3638 VEC (bound_minimal_symbol_d
) *msyms
;
3641 /* A helper function to classify a minimal_symbol_type according to
3645 classify_mtype (enum minimal_symbol_type t
)
3652 /* Intermediate priority. */
3655 case mst_solib_trampoline
:
3656 /* Lowest priority. */
3660 /* Highest priority. */
3665 /* Callback for qsort that sorts symbols by priority. */
3668 compare_msyms (const void *a
, const void *b
)
3670 const bound_minimal_symbol_d
*moa
= (const bound_minimal_symbol_d
*) a
;
3671 const bound_minimal_symbol_d
*mob
= (const bound_minimal_symbol_d
*) b
;
3672 enum minimal_symbol_type ta
= MSYMBOL_TYPE (moa
->minsym
);
3673 enum minimal_symbol_type tb
= MSYMBOL_TYPE (mob
->minsym
);
3675 return classify_mtype (ta
) - classify_mtype (tb
);
3678 /* Callback for iterate_over_minimal_symbols that adds the symbol to
3682 add_minsym (struct minimal_symbol
*minsym
, void *d
)
3684 struct collect_minsyms
*info
= (struct collect_minsyms
*) d
;
3685 bound_minimal_symbol_d mo
;
3688 mo
.objfile
= info
->objfile
;
3690 if (info
->symtab
!= NULL
)
3693 struct symtab_and_line sal
;
3694 struct gdbarch
*gdbarch
= get_objfile_arch (info
->objfile
);
3696 sal
= find_pc_sect_line (MSYMBOL_VALUE_ADDRESS (info
->objfile
, minsym
),
3698 sal
.section
= MSYMBOL_OBJ_SECTION (info
->objfile
, minsym
);
3700 = gdbarch_convert_from_func_ptr_addr (gdbarch
, sal
.pc
, ¤t_target
);
3702 sal
= find_pc_sect_line (pc
, NULL
, 0);
3704 if (info
->symtab
!= sal
.symtab
)
3708 /* Exclude data symbols when looking for breakpoint locations. */
3709 if (!info
->list_mode
)
3710 switch (minsym
->type
)
3712 case mst_slot_got_plt
:
3719 /* Make sure this minsym is not a function descriptor
3720 before we decide to discard it. */
3721 struct gdbarch
*gdbarch
= get_objfile_arch (info
->objfile
);
3722 CORE_ADDR addr
= gdbarch_convert_from_func_ptr_addr
3723 (gdbarch
, BMSYMBOL_VALUE_ADDRESS (mo
),
3726 if (addr
== BMSYMBOL_VALUE_ADDRESS (mo
))
3731 VEC_safe_push (bound_minimal_symbol_d
, info
->msyms
, &mo
);
3734 /* Search for minimal symbols called NAME. If SEARCH_PSPACE
3735 is not NULL, the search is restricted to just that program
3738 If SYMTAB is NULL, search all objfiles, otherwise
3739 restrict results to the given SYMTAB. */
3742 search_minsyms_for_name (struct collect_info
*info
, const char *name
,
3743 struct program_space
*search_pspace
,
3744 struct symtab
*symtab
)
3746 struct collect_minsyms local
;
3747 struct cleanup
*cleanup
;
3749 memset (&local
, 0, sizeof (local
));
3750 local
.funfirstline
= info
->state
->funfirstline
;
3751 local
.list_mode
= info
->state
->list_mode
;
3752 local
.symtab
= symtab
;
3754 cleanup
= make_cleanup (VEC_cleanup (bound_minimal_symbol_d
), &local
.msyms
);
3758 struct program_space
*pspace
;
3760 ALL_PSPACES (pspace
)
3762 struct objfile
*objfile
;
3764 if (search_pspace
!= NULL
&& search_pspace
!= pspace
)
3766 if (pspace
->executing_startup
)
3769 set_current_program_space (pspace
);
3771 ALL_OBJFILES (objfile
)
3773 local
.objfile
= objfile
;
3774 iterate_over_minimal_symbols (objfile
, name
, add_minsym
, &local
);
3780 if (search_pspace
== NULL
|| SYMTAB_PSPACE (symtab
) == search_pspace
)
3782 set_current_program_space (SYMTAB_PSPACE (symtab
));
3783 local
.objfile
= SYMTAB_OBJFILE(symtab
);
3784 iterate_over_minimal_symbols (local
.objfile
, name
, add_minsym
,
3789 if (!VEC_empty (bound_minimal_symbol_d
, local
.msyms
))
3793 bound_minimal_symbol_d
*item
;
3795 qsort (VEC_address (bound_minimal_symbol_d
, local
.msyms
),
3796 VEC_length (bound_minimal_symbol_d
, local
.msyms
),
3797 sizeof (bound_minimal_symbol_d
),
3800 /* Now the minsyms are in classification order. So, we walk
3801 over them and process just the minsyms with the same
3802 classification as the very first minsym in the list. */
3803 item
= VEC_index (bound_minimal_symbol_d
, local
.msyms
, 0);
3804 classification
= classify_mtype (MSYMBOL_TYPE (item
->minsym
));
3807 VEC_iterate (bound_minimal_symbol_d
, local
.msyms
, ix
, item
);
3810 if (classify_mtype (MSYMBOL_TYPE (item
->minsym
)) != classification
)
3813 VEC_safe_push (bound_minimal_symbol_d
,
3814 info
->result
.minimal_symbols
, item
);
3818 do_cleanups (cleanup
);
3821 /* A helper function to add all symbols matching NAME to INFO. If
3822 PSPACE is not NULL, the search is restricted to just that program
3826 add_matching_symbols_to_info (const char *name
,
3827 struct collect_info
*info
,
3828 struct program_space
*pspace
)
3833 for (ix
= 0; VEC_iterate (symtab_ptr
, info
->file_symtabs
, ix
, elt
); ++ix
)
3837 iterate_over_all_matching_symtabs (info
->state
, name
, VAR_DOMAIN
,
3838 collect_symbols
, info
,
3840 search_minsyms_for_name (info
, name
, pspace
, NULL
);
3842 else if (pspace
== NULL
|| pspace
== SYMTAB_PSPACE (elt
))
3844 int prev_len
= VEC_length (symbolp
, info
->result
.symbols
);
3846 /* Program spaces that are executing startup should have
3847 been filtered out earlier. */
3848 gdb_assert (!SYMTAB_PSPACE (elt
)->executing_startup
);
3849 set_current_program_space (SYMTAB_PSPACE (elt
));
3850 iterate_over_file_blocks (elt
, name
, VAR_DOMAIN
,
3851 collect_symbols
, info
);
3853 /* If no new symbols were found in this iteration and this symtab
3854 is in assembler, we might actually be looking for a label for
3855 which we don't have debug info. Check for a minimal symbol in
3857 if (prev_len
== VEC_length (symbolp
, info
->result
.symbols
)
3858 && elt
->language
== language_asm
)
3859 search_minsyms_for_name (info
, name
, pspace
, elt
);
3866 /* Now come some functions that are called from multiple places within
3870 symbol_to_sal (struct symtab_and_line
*result
,
3871 int funfirstline
, struct symbol
*sym
)
3873 if (SYMBOL_CLASS (sym
) == LOC_BLOCK
)
3875 *result
= find_function_start_sal (sym
, funfirstline
);
3880 if (SYMBOL_CLASS (sym
) == LOC_LABEL
&& SYMBOL_VALUE_ADDRESS (sym
) != 0)
3883 result
->symtab
= symbol_symtab (sym
);
3884 result
->line
= SYMBOL_LINE (sym
);
3885 result
->pc
= SYMBOL_VALUE_ADDRESS (sym
);
3886 result
->pspace
= SYMTAB_PSPACE (result
->symtab
);
3887 result
->explicit_pc
= 1;
3890 else if (funfirstline
)
3894 else if (SYMBOL_LINE (sym
) != 0)
3896 /* We know its line number. */
3898 result
->symtab
= symbol_symtab (sym
);
3899 result
->line
= SYMBOL_LINE (sym
);
3900 result
->pspace
= SYMTAB_PSPACE (result
->symtab
);
3908 /* See the comment in linespec.h. */
3911 init_linespec_result (struct linespec_result
*lr
)
3913 memset (lr
, 0, sizeof (*lr
));
3916 /* See the comment in linespec.h. */
3919 destroy_linespec_result (struct linespec_result
*ls
)
3922 struct linespec_sals
*lsal
;
3924 delete_event_location (ls
->location
);
3925 for (i
= 0; VEC_iterate (linespec_sals
, ls
->sals
, i
, lsal
); ++i
)
3927 xfree (lsal
->canonical
);
3928 xfree (lsal
->sals
.sals
);
3930 VEC_free (linespec_sals
, ls
->sals
);
3933 /* Cleanup function for a linespec_result. */
3936 cleanup_linespec_result (void *a
)
3938 destroy_linespec_result ((struct linespec_result
*) a
);
3941 /* See the comment in linespec.h. */
3944 make_cleanup_destroy_linespec_result (struct linespec_result
*ls
)
3946 return make_cleanup (cleanup_linespec_result
, ls
);
3949 /* Return the quote characters permitted by the linespec parser. */
3952 get_gdb_linespec_parser_quote_characters (void)
3954 return linespec_quote_characters
;