1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/* Header for GDB line completion.
Copyright (C) 2000-2017 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (LINESPEC_H)
#define LINESPEC_H 1
struct symtab;
#include "location.h"
#include "vec.h"
/* Flags to pass to decode_line_1 and decode_line_full. */
enum decode_line_flags
{
/* Set this flag if you want the resulting SALs to describe the
first line of indicated functions. */
DECODE_LINE_FUNFIRSTLINE = 1,
/* Set this flag if you want "list mode". In this mode, a
FILE:LINE linespec will always return a result, and such
linespecs will not be expanded to all matches. */
DECODE_LINE_LIST_MODE = 2
};
/* decode_line_full returns a vector of these. */
struct linespec_sals
{
/* This is the location corresponding to the sals contained in this
object. It can be passed as the FILTER argument to future calls
to decode_line_full. This is freed by the linespec_result
destructor. */
char *canonical;
/* Sals. */
std::vector<symtab_and_line> sals;
};
/* An instance of this may be filled in by decode_line_1. The caller
must make copies of any data that it needs to keep. */
struct linespec_result
{
linespec_result () = default;
~linespec_result ();
linespec_result (const linespec_result &) = delete;
linespec_result &operator= (const linespec_result &) = delete;
/* If true, the linespec should be displayed to the user. This
is used by "unusual" linespecs where the ordinary `info break'
display mechanism would do the wrong thing. */
bool special_display = false;
/* If true, the linespec result should be considered to be a
"pre-expanded" multi-location linespec. A pre-expanded linespec
holds all matching locations in a single linespec_sals
object. */
bool pre_expanded = false;
/* If PRE_EXPANDED is non-zero, this is set to the location entered
by the user. */
event_location_up location;
/* The sals. The vector will be freed by the destructor. */
std::vector<linespec_sals> lsals;
};
/* Decode a linespec using the provided default symtab and line. */
extern std::vector<symtab_and_line>
decode_line_1 (const struct event_location *location, int flags,
struct program_space *search_pspace,
struct symtab *default_symtab, int default_line);
/* Parse LOCATION and return results. This is the "full"
interface to this module, which handles multiple results
properly.
For FLAGS, see decode_line_flags. DECODE_LINE_LIST_MODE is not
valid for this function.
If SEARCH_PSPACE is not NULL, symbol search is restricted to just
that program space.
DEFAULT_SYMTAB and DEFAULT_LINE describe the default location.
DEFAULT_SYMTAB can be NULL, in which case the current symtab and
line are used.
CANONICAL is where the results are stored. It must not be NULL.
SELECT_MODE must be one of the multiple_symbols_* constants, or
NULL. It determines how multiple results will be handled. If
NULL, the appropriate CLI value will be used.
FILTER can either be NULL or a string holding a canonical name.
This is only valid when SELECT_MODE is multiple_symbols_all.
Multiple results are handled differently depending on the
arguments:
. With multiple_symbols_cancel, an exception is thrown.
. With multiple_symbols_ask, a menu is presented to the user. The
user may select none, in which case an exception is thrown; or all,
which is handled like multiple_symbols_all, below. Otherwise,
CANONICAL->SALS will have one entry for each name the user chose.
. With multiple_symbols_all, CANONICAL->SALS will have a single
entry describing all the matching locations. If FILTER is
non-NULL, then only locations whose canonical name is equal (in the
strcmp sense) to FILTER will be returned; all others will be
filtered out. */
extern void decode_line_full (const struct event_location *location, int flags,
struct program_space *search_pspace,
struct symtab *default_symtab, int default_line,
struct linespec_result *canonical,
const char *select_mode,
const char *filter);
/* Given a string, return the line specified by it, using the current
source symtab and line as defaults.
This is for commands like "list" and "breakpoint". */
extern std::vector<symtab_and_line> decode_line_with_current_source (char *, int);
/* Given a string, return the line specified by it, using the last displayed
codepoint's values as defaults, or nothing if they aren't valid. */
extern std::vector<symtab_and_line> decode_line_with_last_displayed (char *, int);
/* Does P represent one of the keywords? If so, return
the keyword. If not, return NULL. */
extern const char *linespec_lexer_lex_keyword (const char *p);
/* Parse a line offset from STRING. */
extern struct line_offset linespec_parse_line_offset (const char *string);
/* Return the quote characters permitted by the linespec parser. */
extern const char *get_gdb_linespec_parser_quote_characters (void);
/* Does STRING represent an Ada operator? If so, return the length
of the decoded operator name. If not, return 0. */
extern int is_ada_operator (const char *string);
/* Find an instance of the character C in the string S that is outside
of all parenthesis pairs, single-quoted strings, and double-quoted
strings. Also, ignore the char within a template name, like a ','
within foo<int, int>. */
extern const char *find_toplevel_char (const char *s, char c);
/* Find the end of the (first) linespec pointed to by *STRINGP.
STRINGP will be advanced to this point. */
extern void linespec_lex_to_end (char **stringp);
extern const char * const linespec_keywords[];
/* Complete a linespec. */
extern void linespec_complete (completion_tracker &tracker,
const char *text);
/* Complete a function symbol, in linespec mode. If SOURCE_FILENAME
is non-NULL, limits completion to the list of functions defined in
source files that match SOURCE_FILENAME. */
extern void linespec_complete_function (completion_tracker &tracker,
const char *function,
const char *source_filename);
/* Complete a label symbol, in linespec mode. Only labels of
functions named FUNCTION_NAME are considered. If SOURCE_FILENAME
is non-NULL, limits completion to labels of functions defined in
source files that match SOURCE_FILENAME. */
extern void linespec_complete_label (completion_tracker &tracker,
const struct language_defn *language,
const char *source_filename,
const char *function_name,
const char *label_name);
/* Evaluate the expression pointed to by EXP_PTR into a CORE_ADDR,
advancing EXP_PTR past any parsed text. */
extern CORE_ADDR linespec_expression_to_pc (const char **exp_ptr);
#endif /* defined (LINESPEC_H) */
|
