mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
e6e4e7014d
* target.c (target_read_live_memory): New function. (memory_xfer_live_readonly_partial): New. (memory_xfer_partial): If reading from a traceframe, fallback to reading unavailable read-only memory from read-only regions of live target memory. * tracepoint.c (disconnect_tracing): Adjust. (set_current_traceframe): New, factored out from set_traceframe_number. (set_traceframe_number): Reimplement to only change the traceframe number on the GDB side. (do_restore_current_traceframe_cleanup): Adjust. (make_cleanup_restore_traceframe_number): New. (cur_traceframe_number): New global. (tfile_open): Set cur_traceframe_number to no traceframe. (set_tfile_traceframe): New function. (tfile_trace_find): If looking up a traceframe using any method other than by number, make sure the current tfile traceframe matches gdb's current traceframe. Update the current tfile traceframe if the lookup succeeded. (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value): Make sure the remote traceframe matches gdb's current traceframe. * remote.c (remote_traceframe_number): New global. (remote_open_1): Set it to -1. (set_remote_traceframe): New function. (remote_fetch_registers, remote_store_registers) (remote_xfer_memory, remote_xfer_partial) (remote_get_trace_state_variable_value): Make sure the remote traceframe matches gdb's current traceframe. (remote_trace_find): If looking up a traceframe using any method other than by number, make sure the current remote traceframe matches gdb's current traceframe. Update the current remote traceframe if the lookup succeeded. * infrun.c (fetch_inferior_event): Adjust. * tracepoint.h (set_current_traceframe): Declare. (get_traceframe_number, set_traceframe_number): Add describing comments.
261 lines
7.8 KiB
C
261 lines
7.8 KiB
C
/* Data structures associated with tracepoints in GDB.
|
|
Copyright (C) 1997, 1998, 1999, 2000, 2007, 2008, 2009, 2010, 2011
|
|
Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
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 (TRACEPOINT_H)
|
|
#define TRACEPOINT_H 1
|
|
|
|
#include "breakpoint.h"
|
|
#include "target.h"
|
|
#include "memrange.h"
|
|
|
|
/* A trace state variable is a value managed by a target being
|
|
traced. A trace state variable (or tsv for short) can be accessed
|
|
and assigned to by tracepoint actions and conditionals, but is not
|
|
part of the program being traced, and it doesn't have to be
|
|
collected. Effectively the variables are scratch space for
|
|
tracepoints. */
|
|
|
|
struct trace_state_variable
|
|
{
|
|
/* The variable's name. The user has to prefix with a dollar sign,
|
|
but we don't store that internally. */
|
|
const char *name;
|
|
|
|
/* An id number assigned by GDB, and transmitted to targets. */
|
|
int number;
|
|
|
|
/* The initial value of a variable is a 64-bit signed integer. */
|
|
LONGEST initial_value;
|
|
|
|
/* 1 if the value is known, else 0. The value is known during a
|
|
trace run, or in tfind mode if the variable was collected into
|
|
the current trace frame. */
|
|
int value_known;
|
|
|
|
/* The value of a variable is a 64-bit signed integer. */
|
|
LONGEST value;
|
|
|
|
/* This is true for variables that are predefined and built into
|
|
the target. */
|
|
int builtin;
|
|
};
|
|
|
|
/* The trace status encompasses various info about the general state
|
|
of the tracing run. */
|
|
|
|
enum trace_stop_reason
|
|
{
|
|
trace_stop_reason_unknown,
|
|
trace_never_run,
|
|
tstop_command,
|
|
trace_buffer_full,
|
|
trace_disconnected,
|
|
tracepoint_passcount,
|
|
tracepoint_error
|
|
};
|
|
|
|
struct trace_status
|
|
{
|
|
/* This is true if the status is coming from a file rather
|
|
than a live target. */
|
|
int from_file;
|
|
|
|
/* This is true if the value of the running field is known. */
|
|
int running_known;
|
|
|
|
int running;
|
|
|
|
enum trace_stop_reason stop_reason;
|
|
|
|
/* If stop_reason is tracepoint_passcount or tracepoint_error, this
|
|
is the (on-target) number of the tracepoint which caused the
|
|
stop. */
|
|
int stopping_tracepoint;
|
|
|
|
/* If stop_reason is tracepoint_error, this is a human-readable
|
|
string that describes the error that happened on the target. */
|
|
char *error_desc;
|
|
|
|
/* Number of traceframes currently in the buffer. */
|
|
|
|
int traceframe_count;
|
|
|
|
/* Number of traceframes created since start of run. */
|
|
|
|
int traceframes_created;
|
|
|
|
/* Total size of the target's trace buffer. */
|
|
|
|
int buffer_size;
|
|
|
|
/* Unused bytes left in the target's trace buffer. */
|
|
|
|
int buffer_free;
|
|
|
|
/* 1 if the target will continue tracing after disconnection, else
|
|
0. If the target does not report a value, assume 0. */
|
|
|
|
int disconnected_tracing;
|
|
|
|
/* 1 if the target is using a circular trace buffer, else 0. If the
|
|
target does not report a value, assume 0. */
|
|
|
|
int circular_buffer;
|
|
};
|
|
|
|
struct trace_status *current_trace_status (void);
|
|
|
|
extern char *default_collect;
|
|
|
|
/* Struct to collect random info about tracepoints on the target. */
|
|
|
|
DEF_VEC_P (char_ptr);
|
|
|
|
struct uploaded_tp
|
|
{
|
|
int number;
|
|
enum bptype type;
|
|
ULONGEST addr;
|
|
int enabled;
|
|
int step;
|
|
int pass;
|
|
int orig_size;
|
|
|
|
/* String that is the encoded form of the tracepoint's condition. */
|
|
char *cond;
|
|
|
|
/* Vectors of strings that are the encoded forms of a tracepoint's
|
|
actions. */
|
|
VEC(char_ptr) *actions;
|
|
VEC(char_ptr) *step_actions;
|
|
|
|
/* The original string defining the location of the tracepoint. */
|
|
char *at_string;
|
|
|
|
/* The original string defining the tracepoint's condition. */
|
|
char *cond_string;
|
|
|
|
/* List of original strings defining the tracepoint's actions. */
|
|
VEC(char_ptr) *cmd_strings;
|
|
|
|
struct uploaded_tp *next;
|
|
};
|
|
|
|
/* Struct recording info about trace state variables on the target. */
|
|
|
|
struct uploaded_tsv
|
|
{
|
|
const char *name;
|
|
int number;
|
|
LONGEST initial_value;
|
|
int builtin;
|
|
struct uploaded_tsv *next;
|
|
};
|
|
|
|
/* Struct recording info about a target static tracepoint marker. */
|
|
|
|
struct static_tracepoint_marker
|
|
{
|
|
struct gdbarch *gdbarch;
|
|
CORE_ADDR address;
|
|
|
|
/* The string ID of the marker. */
|
|
char *str_id;
|
|
|
|
/* Extra target reported info associated with the marker. */
|
|
char *extra;
|
|
};
|
|
|
|
extern void parse_static_tracepoint_marker_definition
|
|
(char *line, char **pp,
|
|
struct static_tracepoint_marker *marker);
|
|
extern void release_static_tracepoint_marker (struct static_tracepoint_marker *);
|
|
|
|
/* A hook used to notify the UI of tracepoint operations. */
|
|
|
|
extern void (*deprecated_trace_find_hook) (char *arg, int from_tty);
|
|
extern void (*deprecated_trace_start_stop_hook) (int start, int from_tty);
|
|
|
|
/* Returns the current traceframe number. */
|
|
extern int get_traceframe_number (void);
|
|
|
|
/* Make the traceframe NUM be the current GDB trace frame number, and
|
|
do nothing more. In particular, this does not flush the
|
|
register/frame caches or notify the target about the trace frame
|
|
change, so that is can be used when we need to momentarily access
|
|
live memory. Targets lazily switch their current traceframe to
|
|
match GDB's traceframe number, at the appropriate times. */
|
|
extern void set_traceframe_number (int);
|
|
|
|
/* Make the traceframe NUM be the current trace frame, all the way to
|
|
the target, and flushes all global state (register/frame caches,
|
|
etc.). */
|
|
extern void set_current_traceframe (int num);
|
|
|
|
struct cleanup *make_cleanup_restore_current_traceframe (void);
|
|
struct cleanup *make_cleanup_restore_traceframe_number (void);
|
|
|
|
void free_actions (struct breakpoint *);
|
|
extern void validate_actionline (char **, struct breakpoint *);
|
|
|
|
extern void end_actions_pseudocommand (char *args, int from_tty);
|
|
extern void while_stepping_pseudocommand (char *args, int from_tty);
|
|
|
|
extern struct trace_state_variable *find_trace_state_variable (const char *name);
|
|
extern struct trace_state_variable *create_trace_state_variable (const char *name);
|
|
|
|
extern int encode_source_string (int num, ULONGEST addr,
|
|
char *srctype, char *src,
|
|
char *buf, int buf_size);
|
|
|
|
extern void parse_trace_status (char *line, struct trace_status *ts);
|
|
|
|
extern void parse_tracepoint_definition (char *line,
|
|
struct uploaded_tp **utpp);
|
|
extern void parse_tsv_definition (char *line, struct uploaded_tsv **utsvp);
|
|
|
|
extern struct uploaded_tp *get_uploaded_tp (int num, ULONGEST addr,
|
|
struct uploaded_tp **utpp);
|
|
extern struct breakpoint *create_tracepoint_from_upload (struct uploaded_tp *utp);
|
|
extern void merge_uploaded_tracepoints (struct uploaded_tp **utpp);
|
|
extern void merge_uploaded_trace_state_variables (struct uploaded_tsv **utsvp);
|
|
|
|
extern void disconnect_tracing (int from_tty);
|
|
|
|
extern void start_tracing (void);
|
|
extern void stop_tracing (void);
|
|
|
|
extern void trace_status_mi (int on_stop);
|
|
|
|
extern void tvariables_info_1 (void);
|
|
extern void save_trace_state_variables (struct ui_file *fp);
|
|
|
|
extern void tfind_1 (enum trace_find_type type, int num,
|
|
ULONGEST addr1, ULONGEST addr2,
|
|
int from_tty);
|
|
|
|
extern void trace_save (const char *filename, int target_does_save);
|
|
|
|
extern struct traceframe_info *parse_traceframe_info (const char *tframe_info);
|
|
|
|
extern int traceframe_available_memory (VEC(mem_range_s) **result,
|
|
CORE_ADDR memaddr, ULONGEST len);
|
|
|
|
#endif /* TRACEPOINT_H */
|