1 /* Data structures associated with tracepoints in GDB.
2 Copyright (C) 1997, 1998, 1999, 2000, 2007, 2008, 2009, 2010, 2011
3 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/>. */
20 #if !defined (TRACEPOINT_H)
21 #define TRACEPOINT_H 1
23 #include "breakpoint.h"
26 /* A trace state variable is a value managed by a target being
27 traced. A trace state variable (or tsv for short) can be accessed
28 and assigned to by tracepoint actions and conditionals, but is not
29 part of the program being traced, and it doesn't have to be
30 collected. Effectively the variables are scratch space for
33 struct trace_state_variable
35 /* The variable's name. The user has to prefix with a dollar sign,
36 but we don't store that internally. */
39 /* An id number assigned by GDB, and transmitted to targets. */
42 /* The initial value of a variable is a 64-bit signed integer. */
43 LONGEST initial_value;
45 /* 1 if the value is known, else 0. The value is known during a
46 trace run, or in tfind mode if the variable was collected into
47 the current trace frame. */
50 /* The value of a variable is a 64-bit signed integer. */
53 /* This is true for variables that are predefined and built into
58 /* The trace status encompasses various info about the general state
59 of the tracing run. */
61 enum trace_stop_reason
63 trace_stop_reason_unknown,
74 /* This is true if the status is coming from a file rather
75 than a live target. */
78 /* This is true if the value of the running field is known. */
83 enum trace_stop_reason stop_reason;
85 /* If stop_reason is tracepoint_passcount or tracepoint_error, this
86 is the (on-target) number of the tracepoint which caused the
88 int stopping_tracepoint;
90 /* If stop_reason is tracepoint_error, this is a human-readable
91 string that describes the error that happened on the target. */
94 /* Number of traceframes currently in the buffer. */
98 /* Number of traceframes created since start of run. */
100 int traceframes_created;
102 /* Total size of the target's trace buffer. */
106 /* Unused bytes left in the target's trace buffer. */
110 /* 1 if the target will continue tracing after disconnection, else
111 0. If the target does not report a value, assume 0. */
113 int disconnected_tracing;
115 /* 1 if the target is using a circular trace buffer, else 0. If the
116 target does not report a value, assume 0. */
121 struct trace_status *current_trace_status (void);
123 extern char *default_collect;
125 /* Struct to collect random info about tracepoints on the target. */
127 DEF_VEC_P (char_ptr);
139 /* String that is the encoded form of the tracepoint's condition. */
142 /* Vectors of strings that are the encoded forms of a tracepoint's actions. */
143 VEC(char_ptr) *actions;
144 VEC(char_ptr) *step_actions;
146 /* The original string defining the location of the tracepoint. */
149 /* The original string defining the tracepoint's condition. */
152 /* List of original strings defining the tracepoint's actions. */
153 VEC(char_ptr) *cmd_strings;
155 struct uploaded_tp *next;
158 /* Struct recording info about trace state variables on the target. */
164 LONGEST initial_value;
166 struct uploaded_tsv *next;
169 /* Struct recording info about a target static tracepoint marker. */
171 struct static_tracepoint_marker
173 struct gdbarch *gdbarch;
176 /* The string ID of the marker. */
179 /* Extra target reported info associated with the marker. */
183 extern void parse_static_tracepoint_marker_definition
184 (char *line, char **pp,
185 struct static_tracepoint_marker *marker);
186 extern void release_static_tracepoint_marker (struct static_tracepoint_marker *);
188 /* A hook used to notify the UI of tracepoint operations. */
190 extern void (*deprecated_trace_find_hook) (char *arg, int from_tty);
191 extern void (*deprecated_trace_start_stop_hook) (int start, int from_tty);
193 int get_traceframe_number (void);
194 void set_traceframe_number (int);
195 struct cleanup *make_cleanup_restore_current_traceframe (void);
197 void free_actions (struct breakpoint *);
198 extern void validate_actionline (char **, struct breakpoint *);
200 extern void end_actions_pseudocommand (char *args, int from_tty);
201 extern void while_stepping_pseudocommand (char *args, int from_tty);
203 extern struct trace_state_variable *find_trace_state_variable (const char *name);
204 extern struct trace_state_variable *create_trace_state_variable (const char *name);
206 extern int encode_source_string (int num, ULONGEST addr,
207 char *srctype, char *src,
208 char *buf, int buf_size);
210 extern void parse_trace_status (char *line, struct trace_status *ts);
212 extern void parse_tracepoint_definition (char *line, struct uploaded_tp **utpp);
213 extern void parse_tsv_definition (char *line, struct uploaded_tsv **utsvp);
215 extern struct uploaded_tp *get_uploaded_tp (int num, ULONGEST addr,
216 struct uploaded_tp **utpp);
217 extern struct breakpoint *create_tracepoint_from_upload (struct uploaded_tp *utp);
218 extern void merge_uploaded_tracepoints (struct uploaded_tp **utpp);
219 extern void merge_uploaded_trace_state_variables (struct uploaded_tsv **utsvp);
221 extern void disconnect_tracing (int from_tty);
223 extern void start_tracing (void);
224 extern void stop_tracing (void);
226 extern void trace_status_mi (int on_stop);
228 extern void tvariables_info_1 (void);
229 extern void save_trace_state_variables (struct ui_file *fp);
231 extern void tfind_1 (enum trace_find_type type, int num,
232 ULONGEST addr1, ULONGEST addr2,
235 extern void trace_save (const char *filename, int target_does_save);
237 #endif /* TRACEPOINT_H */