bp_tracepoint,
bp_fast_tracepoint,
+ bp_static_tracepoint,
/* Event for JIT compiled code generation or deletion. */
bp_jit_event,
the same parent breakpoint. */
struct bp_location *next;
+ /* The reference count. */
+ int refc;
+
/* Type of this breakpoint location. */
enum bp_loc_type loc_type;
/* Each breakpoint location must belong to exactly one higher-level
- breakpoint. This and the DUPLICATE flag are more straightforward
- than reference counting. This pointer is NULL iff this bp_location is in
- (and therefore only in) moribund_locations. */
+ breakpoint. This pointer is NULL iff this bp_location is no
+ longer attached to a breakpoint. For example, when a breakpoint
+ is deleted, its locations may still be found in the
+ moribund_locations list, or if we had stopped for it, in
+ bpstats. */
struct breakpoint *owner;
/* Conditional. Break only if this expression's value is nonzero.
/* String form of the breakpoint condition (malloc'd), or NULL if there
is no condition. */
char *cond_string;
- /* String form of exp (malloc'd), or NULL if none. */
+ /* String form of exp to use for displaying to the user (malloc'd), or
+ NULL if none. */
char *exp_string;
+ /* String form to use for reparsing of EXP (malloc'd) or NULL. */
+ char *exp_string_reparse;
/* The expression we are watching, or NULL if not a watchpoint. */
struct expression *exp;
/* The number of the tracepoint on the target. */
int number_on_target;
+
+ /* The static tracepoint marker id, if known. */
+ char *static_trace_marker_id;
+
+ /* LTTng/UST allow more than one marker with the same ID string,
+ although it unadvised because it confuses tools. When setting
+ static tracepoints by marker ID, this will record the index in
+ the array of markers we found for the given marker ID for which
+ this static tracepoint corresponds. When resetting
+ breakpoints, we will use this index to try to find the same
+ marker again. */
+ int static_trace_marker_id_idx;
};
typedef struct breakpoint *breakpoint_p;
typedef struct bpstats *bpstat;
-/* Frees any storage that is part of a bpstat.
- Does not walk the 'next' chain. */
-extern void bpstat_free (bpstat);
-
/* Clears a chain of bpstat, freeing storage
of each. */
extern void bpstat_clear (bpstat *);
struct bpstats
{
- /* Linked list because there can be two breakpoints at the same
- place, and a bpstat reflects the fact that both have been hit. */
+ /* Linked list because there can be more than one breakpoint at
+ the same place, and a bpstat reflects the fact that all have
+ been hit. */
bpstat next;
- /* Breakpoint that we are at. */
- const struct bp_location *breakpoint_at;
+
+ /* Location that caused the stop. Locations are refcounted, so
+ this will never be NULL. Note that this location may end up
+ detached from a breakpoint, but that does not necessary mean
+ that the struct breakpoint is gone. E.g., consider a
+ watchpoint with a condition that involves an inferior function
+ call. Watchpoint locations are recreated often (on resumes,
+ hence on infcalls too). Between creating the bpstat and after
+ evaluating the watchpoint condition, this location may hence
+ end up detached from its original owner watchpoint, even though
+ the watchpoint is still listed. If it's condition evaluates as
+ true, we still want this location to cause a stop, and we will
+ still need to know which watchpoint it was originally attached.
+ What this means is that we should not (in most cases) follow
+ the `bpstat->bp_location->owner' link, but instead use the
+ `breakpoint_at' field below. */
+ struct bp_location *bp_location_at;
+
+ /* Breakpoint that caused the stop. This is nullified if the
+ breakpoint ends up being deleted. See comments on
+ `bp_location_at' above for why do we need this field instead of
+ following the location's owner. */
+ struct breakpoint *breakpoint_at;
+
/* The associated command list. */
struct counted_command_line *commands;
+
/* Commands left to be done. This points somewhere in
base_command. */
struct command_line *commands_left;
+
/* Old value associated with a watchpoint. */
struct value *old_val;
extern int create_breakpoint (struct gdbarch *gdbarch, char *arg,
char *cond_string, int thread,
int parse_condition_and_thread,
- int tempflag, int hardwareflag, int traceflag,
+ int tempflag, enum bptype wanted_type,
int ignore_count,
enum auto_boolean pending_break_support,
struct breakpoint_ops *ops,
twice before remove is called. */
extern void insert_single_step_breakpoint (struct gdbarch *,
struct address_space *, CORE_ADDR);
+extern int single_step_breakpoints_inserted (void);
extern void remove_single_step_breakpoints (void);
extern void cancel_single_step_breakpoints (void);
extern int is_tracepoint (const struct breakpoint *b);
+/* Return a vector of all static tracepoints defined at ADDR. The
+ vector is newly allocated; the caller should free when done with
+ it. */
+extern VEC(breakpoint_p) *static_tracepoints_here (CORE_ADDR addr);
+
/* Function that can be passed to read_command_line to validate
that each command is suitable for tracepoint command list. */
extern void check_tracepoint_command (char *line, void *closure);
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