1 /* Data structures associated with tracepoints in GDB.
2 Copyright (C) 1997-2016 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 #if !defined (TRACEPOINT_H)
20 #define TRACEPOINT_H 1
22 #include "breakpoint.h"
27 /* An object describing the contents of a traceframe. */
29 struct traceframe_info
31 /* Collected memory. */
32 VEC(mem_range_s) *memory;
34 /* Collected trace state variables. */
38 /* A trace state variable is a value managed by a target being
39 traced. A trace state variable (or tsv for short) can be accessed
40 and assigned to by tracepoint actions and conditionals, but is not
41 part of the program being traced, and it doesn't have to be
42 collected. Effectively the variables are scratch space for
45 struct trace_state_variable
47 /* The variable's name. The user has to prefix with a dollar sign,
48 but we don't store that internally. */
51 /* An id number assigned by GDB, and transmitted to targets. */
54 /* The initial value of a variable is a 64-bit signed integer. */
55 LONGEST initial_value;
57 /* 1 if the value is known, else 0. The value is known during a
58 trace run, or in tfind mode if the variable was collected into
59 the current trace frame. */
62 /* The value of a variable is a 64-bit signed integer. */
65 /* This is true for variables that are predefined and built into
70 /* The trace status encompasses various info about the general state
71 of the tracing run. */
73 enum trace_stop_reason
75 trace_stop_reason_unknown,
86 /* If the status is coming from a file rather than a live target,
87 this points at the file's filename. Otherwise, this is NULL. */
90 /* This is true if the value of the running field is known. */
93 /* This is true when the trace experiment is actually running. */
96 enum trace_stop_reason stop_reason;
98 /* If stop_reason is tracepoint_passcount or tracepoint_error, this
99 is the (on-target) number of the tracepoint which caused the
101 int stopping_tracepoint;
103 /* If stop_reason is tstop_command or tracepoint_error, this is an
104 arbitrary string that may describe the reason for the stop in
109 /* Number of traceframes currently in the buffer. */
111 int traceframe_count;
113 /* Number of traceframes created since start of run. */
115 int traceframes_created;
117 /* Total size of the target's trace buffer. */
121 /* Unused bytes left in the target's trace buffer. */
125 /* 1 if the target will continue tracing after disconnection, else
126 0. If the target does not report a value, assume 0. */
128 int disconnected_tracing;
130 /* 1 if the target is using a circular trace buffer, else 0. If the
131 target does not report a value, assume 0. */
135 /* The "name" of the person running the trace. This is an
140 /* "Notes" about the trace. This is an arbitrary string not
141 interpreted by GDBserver in any special way. */
145 /* The calendar times at which the trace run started and stopped,
146 both expressed in microseconds of Unix time. */
152 struct trace_status *current_trace_status (void);
154 extern char *default_collect;
156 extern int trace_regblock_size;
158 extern const char *stop_reason_names[];
160 /* Struct to collect random info about tracepoints on the target. */
172 /* String that is the encoded form of the tracepoint's condition. */
175 /* Vectors of strings that are the encoded forms of a tracepoint's
177 VEC(char_ptr) *actions;
178 VEC(char_ptr) *step_actions;
180 /* The original string defining the location of the tracepoint. */
183 /* The original string defining the tracepoint's condition. */
186 /* List of original strings defining the tracepoint's actions. */
187 VEC(char_ptr) *cmd_strings;
189 /* The tracepoint's current hit count. */
192 /* The tracepoint's current traceframe usage. */
193 ULONGEST traceframe_usage;
195 struct uploaded_tp *next;
198 /* Struct recording info about trace state variables on the target. */
204 LONGEST initial_value;
206 struct uploaded_tsv *next;
209 /* Struct recording info about a target static tracepoint marker. */
211 struct static_tracepoint_marker
213 struct gdbarch *gdbarch;
216 /* The string ID of the marker. */
219 /* Extra target reported info associated with the marker. */
225 /* memrange_absolute for absolute memory range, else basereg
228 bfd_signed_vma start;
232 struct collection_list
234 /* room for up to 256 regs */
235 unsigned char regs_mask[32];
238 struct memrange *list;
240 /* size of array pointed to by expr_list elt. */
243 struct agent_expr **aexpr_list;
245 /* True is the user requested a collection of "$_sdata", "static
249 /* A set of names of wholly collected objects. */
250 VEC(char_ptr) *wholly_collected;
251 /* A set of computed expressions. */
252 VEC(char_ptr) *computed;
255 extern void parse_static_tracepoint_marker_definition
256 (char *line, char **pp,
257 struct static_tracepoint_marker *marker);
258 extern void release_static_tracepoint_marker (struct static_tracepoint_marker *);
259 extern void free_current_marker (void *arg);
261 /* A hook used to notify the UI of tracepoint operations. */
263 extern void (*deprecated_trace_find_hook) (char *arg, int from_tty);
264 extern void (*deprecated_trace_start_stop_hook) (int start, int from_tty);
266 /* Returns the current traceframe number. */
267 extern int get_traceframe_number (void);
269 /* Returns the tracepoint number for current traceframe. */
270 extern int get_tracepoint_number (void);
272 /* Make the traceframe NUM be the current trace frame, all the way to
273 the target, and flushes all global state (register/frame caches,
275 extern void set_current_traceframe (int num);
277 struct cleanup *make_cleanup_restore_current_traceframe (void);
279 void free_actions (struct breakpoint *);
281 extern const char *decode_agent_options (const char *exp, int *trace_string);
283 extern struct cleanup *
284 encode_actions_and_make_cleanup (struct bp_location *tloc,
285 struct collection_list *tracepoint_list,
286 struct collection_list *stepping_list);
288 extern void encode_actions_rsp (struct bp_location *tloc,
289 char ***tdp_actions, char ***stepping_actions);
291 extern void validate_actionline (const char *, struct breakpoint *);
292 extern void validate_trace_state_variable_name (const char *name);
294 extern struct trace_state_variable *find_trace_state_variable (const char *name);
295 extern struct trace_state_variable *
296 find_trace_state_variable_by_number (int number);
298 extern struct trace_state_variable *create_trace_state_variable (const char *name);
300 extern int encode_source_string (int num, ULONGEST addr,
301 char *srctype, const char *src,
302 char *buf, int buf_size);
304 extern void parse_trace_status (char *line, struct trace_status *ts);
306 extern void parse_tracepoint_status (char *p, struct breakpoint *tp,
307 struct uploaded_tp *utp);
309 extern void parse_tracepoint_definition (char *line,
310 struct uploaded_tp **utpp);
311 extern void parse_tsv_definition (char *line, struct uploaded_tsv **utsvp);
313 extern struct uploaded_tp *get_uploaded_tp (int num, ULONGEST addr,
314 struct uploaded_tp **utpp);
315 extern void free_uploaded_tps (struct uploaded_tp **utpp);
317 extern struct uploaded_tsv *get_uploaded_tsv (int num,
318 struct uploaded_tsv **utsvp);
319 extern void free_uploaded_tsvs (struct uploaded_tsv **utsvp);
320 extern struct tracepoint *create_tracepoint_from_upload (struct uploaded_tp *utp);
321 extern void merge_uploaded_tracepoints (struct uploaded_tp **utpp);
322 extern void merge_uploaded_trace_state_variables (struct uploaded_tsv **utsvp);
324 extern void query_if_trace_running (int from_tty);
325 extern void disconnect_tracing (void);
326 extern void trace_reset_local_state (void);
328 extern void check_trace_running (struct trace_status *);
330 extern void start_tracing (char *notes);
331 extern void stop_tracing (char *notes);
333 extern void trace_status_mi (int on_stop);
335 extern void tvariables_info_1 (void);
336 extern void save_trace_state_variables (struct ui_file *fp);
338 extern void tfind_1 (enum trace_find_type type, int num,
339 CORE_ADDR addr1, CORE_ADDR addr2,
342 extern void trace_save_tfile (const char *filename,
343 int target_does_save);
344 extern void trace_save_ctf (const char *dirname,
345 int target_does_save);
347 extern struct traceframe_info *parse_traceframe_info (const char *tframe_info);
349 extern int traceframe_available_memory (VEC(mem_range_s) **result,
350 CORE_ADDR memaddr, ULONGEST len);
352 extern struct traceframe_info *get_traceframe_info (void);
354 extern struct bp_location *get_traceframe_location (int *stepping_frame_p);
356 #endif /* TRACEPOINT_H */