/* Data structures used by the tracer. */
+/*
+ * IMPORTANT: this structure is part of the ABI between the probe and
+ * UST. Fields need to be only added at the end, never reordered, never
+ * removed.
+ *
+ * The field @struct_size should be used to determine the size of the
+ * structure. It should be queried before using additional fields added
+ * at the end of the structure.
+ *
+ * The probe_ctx is not const because it may be extended to add future
+ * fields which could be modified by callbacks.
+ */
+struct lttng_ust_probe_ctx {
+ uint32_t struct_size; /* Size of this structure. */
+
+ void *ip; /* caller ip address */
+
+ /* End of base ABI. Fields below should be used after checking struct_size. */
+};
+
/*
* lttng_event structure is referred to by the tracing fast path. It
* must be kept small.
int eval_filter; /* Need to evaluate filters */
int (*run_filter)(const struct lttng_ust_event_common *event,
const char *stack_data,
+ struct lttng_ust_probe_ctx *probe_ctx,
void *filter_ctx);
/* End of base ABI. Fields below should be used after checking struct_size. */
struct lttng_ust_notification_ctx {
uint32_t struct_size; /* Size of this structure. */
int eval_capture; /* Capture evaluation available. */
-
/* End of base ABI. Fields below should be used after checking struct_size. */
};
int eval_capture; /* Need to evaluate capture */
void (*notification_send)(const struct lttng_ust_event_notifier *event_notifier,
const char *stack_data,
+ struct lttng_ust_probe_ctx *probe_ctx,
struct lttng_ust_notification_ctx *notif_ctx);
/* End of base ABI. Fields below should be used after checking struct_size. */