/* Data structures associated with tracepoints in GDB.
- Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1997-2015 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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (TRACEPOINT_H)
#define TRACEPOINT_H 1
-#if !defined (BREAKPOINT_H)
-enum enable
+#include "breakpoint.h"
+#include "target.h"
+#include "memrange.h"
+#include "gdb_vecs.h"
+
+/* An object describing the contents of a traceframe. */
+
+struct traceframe_info
+{
+ /* Collected memory. */
+ VEC(mem_range_s) *memory;
+
+ /* Collected trace state variables. */
+ VEC(int) *tvars;
+};
+
+/* 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
{
- disabled, enabled
- };
-#endif
-/* The data structure for an action: */
-struct action_line
+ /* 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
{
- struct action_line *next;
- char *action;
+ trace_stop_reason_unknown,
+ trace_never_run,
+ tstop_command,
+ trace_buffer_full,
+ trace_disconnected,
+ tracepoint_passcount,
+ tracepoint_error
};
-/* The data structure for a tracepoint: */
+struct trace_status
+{
+ /* If the status is coming from a file rather than a live target,
+ this points at the file's filename. Otherwise, this is NULL. */
+ const char *filename;
-struct tracepoint
- {
- struct tracepoint *next;
+ /* This is true if the value of the running field is known. */
+ int running_known;
- enum enable enabled;
+ /* This is true when the trace experiment is actually running. */
+ int running;
-#if 0
- /* Type of tracepoint (MVS FIXME: needed?). */
- enum tptype type;
+ enum trace_stop_reason stop_reason;
- /* What to do with this tracepoint after we hit it MVS FIXME: needed?). */
- enum tpdisp disposition;
-#endif
- /* Number assigned to distinguish tracepoints. */
- int number;
+ /* 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;
- /* Address to trace at, or NULL if not an instruction tracepoint (MVS ?). */
- CORE_ADDR address;
+ /* If stop_reason is tstop_command or tracepoint_error, this is an
+ arbitrary string that may describe the reason for the stop in
+ more detail. */
- /* Line number of this address. Only matters if address is non-NULL. */
- int line_number;
+ char *stop_desc;
- /* Source file name of this address. Only matters if address is non-NULL. */
- char *source_file;
+ /* Number of traceframes currently in the buffer. */
- /* Number of times this tracepoint should single-step
- and collect additional data */
- long step_count;
+ int traceframe_count;
- /* Number of times this tracepoint should be hit before disabling/ending. */
- int pass_count;
+ /* Number of traceframes created since start of run. */
- /* Chain of action lines to execute when this tracepoint is hit. */
- struct action_line *actions;
+ int traceframes_created;
- /* Conditional (MVS ?). */
- struct expression *cond;
+ /* Total size of the target's trace buffer. */
- /* String we used to set the tracepoint (malloc'd). Only matters if
- address is non-NULL. */
- char *addr_string;
+ int buffer_size;
- /* Language we used to set the tracepoint. */
- enum language language;
+ /* Unused bytes left in the target's trace buffer. */
- /* Input radix we used to set the tracepoint. */
- int input_radix;
+ int buffer_free;
- /* Count of the number of times this tracepoint was taken, dumped
- with the info, but not used for anything else. Useful for
- seeing how many times you hit a tracepoint prior to the program
- aborting, so you can back up to just before the abort. */
- int hit_count;
+ /* 1 if the target will continue tracing after disconnection, else
+ 0. If the target does not report a value, assume 0. */
- /* Thread number for thread-specific tracepoint, or -1 if don't care */
- int thread;
+ int disconnected_tracing;
- /* BFD section, in case of overlays:
- no, I don't know if tracepoints are really gonna work with overlays. */
- asection *section;
- };
+ /* 1 if the target is using a circular trace buffer, else 0. If the
+ target does not report a value, assume 0. */
-enum actionline_type
- {
- BADLINE = -1,
- GENERIC = 0,
- END = 1,
- STEPPING = 2
- };
+ int circular_buffer;
+
+ /* The "name" of the person running the trace. This is an
+ arbitrary string. */
+
+ char *user_name;
+
+ /* "Notes" about the trace. This is an arbitrary string not
+ interpreted by GDBserver in any special way. */
+
+ char *notes;
+
+ /* The calendar times at which the trace run started and stopped,
+ both expressed in microseconds of Unix time. */
+
+ LONGEST start_time;
+ LONGEST stop_time;
+};
+
+struct trace_status *current_trace_status (void);
+
+extern char *default_collect;
+
+extern int trace_regblock_size;
+
+extern const char *stop_reason_names[];
+
+/* Struct to collect random info about tracepoints on the target. */
+
+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;
+
+ /* The tracepoint's current hit count. */
+ int hit_count;
+
+ /* The tracepoint's current traceframe usage. */
+ ULONGEST traceframe_usage;
+
+ 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;
+};
+
+struct memrange
+{
+ /* memrange_absolute for absolute memory range, else basereg
+ number. */
+ int type;
+ bfd_signed_vma start;
+ bfd_signed_vma end;
+};
+
+struct collection_list
+{
+ /* room for up to 256 regs */
+ unsigned char regs_mask[32];
+ long listsize;
+ long next_memrange;
+ struct memrange *list;
+
+ /* size of array pointed to by expr_list elt. */
+ long aexpr_listsize;
+ long next_aexpr_elt;
+ struct agent_expr **aexpr_list;
+
+ /* True is the user requested a collection of "$_sdata", "static
+ tracepoint data". */
+ int strace_data;
+
+ /* A set of names of wholly collected objects. */
+ VEC(char_ptr) *wholly_collected;
+ /* A set of computed expressions. */
+ VEC(char_ptr) *computed;
+};
+
+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 *);
+extern void free_current_marker (void *arg);
+
+/* 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);
+
+/* Returns the tracepoint number for current traceframe. */
+extern int get_tracepoint_number (void);
+
+/* 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);
+
+void free_actions (struct breakpoint *);
+
+extern const char *decode_agent_options (const char *exp, int *trace_string);
+
+extern struct cleanup *
+ encode_actions_and_make_cleanup (struct bp_location *tloc,
+ struct collection_list *tracepoint_list,
+ struct collection_list *stepping_list);
+
+extern void encode_actions_rsp (struct bp_location *tloc,
+ char ***tdp_actions, char ***stepping_actions);
+
+extern void validate_actionline (const char *, struct breakpoint *);
+extern void validate_trace_state_variable_name (const char *name);
+
+extern struct trace_state_variable *find_trace_state_variable (const char *name);
+extern struct trace_state_variable *
+ find_trace_state_variable_by_number (int number);
+
+extern struct trace_state_variable *create_trace_state_variable (const char *name);
+
+extern int encode_source_string (int num, ULONGEST addr,
+ char *srctype, const char *src,
+ char *buf, int buf_size);
+
+extern void parse_trace_status (char *line, struct trace_status *ts);
+
+extern void parse_tracepoint_status (char *p, struct breakpoint *tp,
+ struct uploaded_tp *utp);
+
+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 void free_uploaded_tps (struct uploaded_tp **utpp);
+
+extern struct uploaded_tsv *get_uploaded_tsv (int num,
+ struct uploaded_tsv **utsvp);
+extern void free_uploaded_tsvs (struct uploaded_tsv **utsvp);
+extern struct tracepoint *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 query_if_trace_running (int from_tty);
+extern void disconnect_tracing (void);
+extern void trace_reset_local_state (void);
+extern void check_trace_running (struct trace_status *);
-/* The tracepont chain of all tracepoints */
+extern void start_tracing (char *notes);
+extern void stop_tracing (char *notes);
-extern struct tracepoint *tracepoint_chain;
+extern void trace_status_mi (int on_stop);
-extern unsigned long trace_running_p;
+extern void tvariables_info_1 (void);
+extern void save_trace_state_variables (struct ui_file *fp);
-/* A hook used to notify the UI of tracepoint operations */
+extern void tfind_1 (enum trace_find_type type, int num,
+ CORE_ADDR addr1, CORE_ADDR addr2,
+ int from_tty);
-void (*create_tracepoint_hook) PARAMS ((struct tracepoint *));
-void (*delete_tracepoint_hook) PARAMS ((struct tracepoint *));
-void (*modify_tracepoint_hook) PARAMS ((struct tracepoint *));
-void (*trace_find_hook) PARAMS ((char *arg, int from_tty));
-void (*trace_start_stop_hook) PARAMS ((int start, int from_tty));
+extern void trace_save_tfile (const char *filename,
+ int target_does_save);
+extern void trace_save_ctf (const char *dirname,
+ int target_does_save);
-struct tracepoint *get_tracepoint_by_number PARAMS ((char **, int));
-int get_traceframe_number PARAMS ((void));
-void free_actions PARAMS ((struct tracepoint *));
-enum actionline_type validate_actionline PARAMS ((char **,
- struct tracepoint *));
+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);
-/* Walk the following statement or block through all tracepoints.
- ALL_TRACEPOINTS_SAFE does so even if the statment deletes the current
- breakpoint. */
+extern struct traceframe_info *get_traceframe_info (void);
-#define ALL_TRACEPOINTS(t) for (t = tracepoint_chain; t; t = t->next)
+extern struct bp_location *get_traceframe_location (int *stepping_frame_p);
-#define ALL_TRACEPOINTS_SAFE(t,tmp) \
- for (t = tracepoint_chain; \
- t ? (tmp = t->next, 1) : 0;\
- t = tmp)
-#endif /* TRACEPOINT_H */
+#endif /* TRACEPOINT_H */
projects / deliverable / binutils-gdb.git / blobdiff