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291 lines
8.5 KiB
C
291 lines
8.5 KiB
C
/* Data structures associated with tracepoints in GDB.
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Copyright (C) 1997-2000, 2007-2012 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#if !defined (TRACEPOINT_H)
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#define TRACEPOINT_H 1
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#include "breakpoint.h"
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#include "target.h"
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#include "memrange.h"
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/* A trace state variable is a value managed by a target being
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traced. A trace state variable (or tsv for short) can be accessed
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and assigned to by tracepoint actions and conditionals, but is not
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part of the program being traced, and it doesn't have to be
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collected. Effectively the variables are scratch space for
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tracepoints. */
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struct trace_state_variable
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{
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/* The variable's name. The user has to prefix with a dollar sign,
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but we don't store that internally. */
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const char *name;
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/* An id number assigned by GDB, and transmitted to targets. */
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int number;
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/* The initial value of a variable is a 64-bit signed integer. */
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LONGEST initial_value;
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/* 1 if the value is known, else 0. The value is known during a
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trace run, or in tfind mode if the variable was collected into
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the current trace frame. */
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int value_known;
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/* The value of a variable is a 64-bit signed integer. */
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LONGEST value;
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/* This is true for variables that are predefined and built into
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the target. */
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int builtin;
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};
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/* The trace status encompasses various info about the general state
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of the tracing run. */
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enum trace_stop_reason
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{
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trace_stop_reason_unknown,
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trace_never_run,
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tstop_command,
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trace_buffer_full,
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trace_disconnected,
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tracepoint_passcount,
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tracepoint_error
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};
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struct trace_status
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{
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/* This is true if the status is coming from a file rather
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than a live target. */
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int from_file;
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/* This is true if the value of the running field is known. */
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int running_known;
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/* This is true when the trace experiment is actually running. */
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int running;
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enum trace_stop_reason stop_reason;
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/* If stop_reason is tracepoint_passcount or tracepoint_error, this
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is the (on-target) number of the tracepoint which caused the
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stop. */
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int stopping_tracepoint;
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/* If stop_reason is tstop_command or tracepoint_error, this is an
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arbitrary string that may describe the reason for the stop in
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more detail. */
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char *stop_desc;
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/* Number of traceframes currently in the buffer. */
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int traceframe_count;
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/* Number of traceframes created since start of run. */
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int traceframes_created;
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/* Total size of the target's trace buffer. */
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int buffer_size;
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/* Unused bytes left in the target's trace buffer. */
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int buffer_free;
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/* 1 if the target will continue tracing after disconnection, else
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0. If the target does not report a value, assume 0. */
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int disconnected_tracing;
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/* 1 if the target is using a circular trace buffer, else 0. If the
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target does not report a value, assume 0. */
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int circular_buffer;
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/* The "name" of the person running the trace. This is an
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arbitrary string. */
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char *user_name;
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/* "Notes" about the trace. This is an arbitrary string not
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interpreted by GDBserver in any special way. */
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char *notes;
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/* The calendar times at which the trace run started and stopped,
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both expressed in microseconds of Unix time. */
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LONGEST start_time;
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LONGEST stop_time;
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};
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struct trace_status *current_trace_status (void);
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extern char *default_collect;
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/* Struct to collect random info about tracepoints on the target. */
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DEF_VEC_P (char_ptr);
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struct uploaded_tp
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{
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int number;
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enum bptype type;
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ULONGEST addr;
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int enabled;
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int step;
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int pass;
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int orig_size;
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/* String that is the encoded form of the tracepoint's condition. */
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char *cond;
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/* Vectors of strings that are the encoded forms of a tracepoint's
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actions. */
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VEC(char_ptr) *actions;
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VEC(char_ptr) *step_actions;
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/* The original string defining the location of the tracepoint. */
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char *at_string;
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/* The original string defining the tracepoint's condition. */
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char *cond_string;
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/* List of original strings defining the tracepoint's actions. */
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VEC(char_ptr) *cmd_strings;
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/* The tracepoint's current hit count. */
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int hit_count;
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/* The tracepoint's current traceframe usage. */
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ULONGEST traceframe_usage;
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struct uploaded_tp *next;
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};
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/* Struct recording info about trace state variables on the target. */
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struct uploaded_tsv
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{
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const char *name;
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int number;
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LONGEST initial_value;
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int builtin;
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struct uploaded_tsv *next;
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};
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/* Struct recording info about a target static tracepoint marker. */
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struct static_tracepoint_marker
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{
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struct gdbarch *gdbarch;
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CORE_ADDR address;
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/* The string ID of the marker. */
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char *str_id;
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/* Extra target reported info associated with the marker. */
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char *extra;
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};
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extern void parse_static_tracepoint_marker_definition
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(char *line, char **pp,
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struct static_tracepoint_marker *marker);
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extern void release_static_tracepoint_marker (struct static_tracepoint_marker *);
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/* A hook used to notify the UI of tracepoint operations. */
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extern void (*deprecated_trace_find_hook) (char *arg, int from_tty);
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extern void (*deprecated_trace_start_stop_hook) (int start, int from_tty);
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/* Returns the current traceframe number. */
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extern int get_traceframe_number (void);
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/* Make the traceframe NUM be the current GDB trace frame number, and
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do nothing more. In particular, this does not flush the
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register/frame caches or notify the target about the trace frame
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change, so that is can be used when we need to momentarily access
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live memory. Targets lazily switch their current traceframe to
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match GDB's traceframe number, at the appropriate times. */
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extern void set_traceframe_number (int);
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/* Make the traceframe NUM be the current trace frame, all the way to
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the target, and flushes all global state (register/frame caches,
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etc.). */
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extern void set_current_traceframe (int num);
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struct cleanup *make_cleanup_restore_current_traceframe (void);
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struct cleanup *make_cleanup_restore_traceframe_number (void);
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void free_actions (struct breakpoint *);
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extern char *decode_agent_options (char *exp);
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extern void validate_actionline (char **, struct breakpoint *);
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extern void end_actions_pseudocommand (char *args, int from_tty);
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extern void while_stepping_pseudocommand (char *args, int from_tty);
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extern struct trace_state_variable *find_trace_state_variable (const char *name);
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extern struct trace_state_variable *create_trace_state_variable (const char *name);
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extern int encode_source_string (int num, ULONGEST addr,
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char *srctype, char *src,
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char *buf, int buf_size);
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extern void parse_trace_status (char *line, struct trace_status *ts);
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extern void parse_tracepoint_status (char *p, struct breakpoint *tp,
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struct uploaded_tp *utp);
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extern void parse_tracepoint_definition (char *line,
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struct uploaded_tp **utpp);
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extern void parse_tsv_definition (char *line, struct uploaded_tsv **utsvp);
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extern struct uploaded_tp *get_uploaded_tp (int num, ULONGEST addr,
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struct uploaded_tp **utpp);
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extern struct tracepoint *create_tracepoint_from_upload (struct uploaded_tp *utp);
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extern void merge_uploaded_tracepoints (struct uploaded_tp **utpp);
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extern void merge_uploaded_trace_state_variables (struct uploaded_tsv **utsvp);
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extern void disconnect_tracing (int from_tty);
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extern void start_tracing (char *notes);
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extern void stop_tracing (char *notes);
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extern void trace_status_mi (int on_stop);
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extern void tvariables_info_1 (void);
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extern void save_trace_state_variables (struct ui_file *fp);
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extern void tfind_1 (enum trace_find_type type, int num,
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ULONGEST addr1, ULONGEST addr2,
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int from_tty);
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extern void trace_save (const char *filename, int target_does_save);
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extern struct traceframe_info *parse_traceframe_info (const char *tframe_info);
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extern int traceframe_available_memory (VEC(mem_range_s) **result,
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CORE_ADDR memaddr, ULONGEST len);
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#endif /* TRACEPOINT_H */
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