struct lttng_type type;
};
+union lttng_ctx_value {
+ int64_t s64;
+ const char *str;
+ double d;
+};
+
/*
* We need to keep this perf counter field separately from struct
* lttng_ctx_field because cpu hotplug needs fixed-location addresses.
void (*record)(struct lttng_ctx_field *field,
struct lib_ring_buffer_ctx *ctx,
struct lttng_channel *chan);
+ void (*get_value)(struct lttng_ctx_field *field,
+ union lttng_ctx_value *value);
union {
struct lttng_perf_counter_field *perf_counter;
} u;
LTTNG_TYPE_ENABLER = 1,
};
+struct lttng_filter_bytecode_node {
+ struct list_head node;
+ struct lttng_enabler *enabler;
+ /*
+ * struct lttng_kernel_filter_bytecode has var. sized array, must be
+ * last field.
+ */
+ struct lttng_kernel_filter_bytecode bc;
+};
+
+/*
+ * Filter return value masks.
+ */
+enum lttng_filter_ret {
+ LTTNG_FILTER_DISCARD = 0,
+ LTTNG_FILTER_RECORD_FLAG = (1ULL << 0),
+ /* Other bits are kept for future use. */
+};
+
+struct lttng_bytecode_runtime {
+ /* Associated bytecode */
+ struct lttng_filter_bytecode_node *bc;
+ uint64_t (*filter)(void *filter_data, const char *filter_stack_data);
+ int link_failed;
+ struct list_head node; /* list of bytecode runtime in event */
+};
+
/*
* Objects in a linked-list of enablers, owned by an event.
*/
struct list_head enablers_ref_head;
struct hlist_node hlist; /* session ht of events */
int registered; /* has reg'd tracepoint probe */
+ /* list of struct lttng_bytecode_runtime, sorted by seqnum */
+ struct list_head bytecode_runtime_head;
+ int has_enablers_without_bytecode;
};
enum lttng_enabler_type {
enum lttng_enabler_type type;
struct list_head node; /* per-session list of enablers */
+ /* head list of struct lttng_ust_filter_bytecode_node */
+ struct list_head filter_bytecode_head;
struct lttng_kernel_event event_param;
struct lttng_channel *chan;
void *filter,
const struct lttng_event_desc *event_desc,
enum lttng_kernel_instrumentation itype);
+struct lttng_event *_lttng_event_create(struct lttng_channel *chan,
+ struct lttng_kernel_event *event_param,
+ void *filter,
+ const struct lttng_event_desc *event_desc,
+ enum lttng_kernel_instrumentation itype);
struct lttng_event *lttng_event_compat_old_create(struct lttng_channel *chan,
struct lttng_kernel_old_event *old_event_param,
void *filter,
}
#endif
+void lttng_filter_sync_state(struct lttng_bytecode_runtime *runtime);
+int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler,
+ struct lttng_kernel_filter_bytecode __user *bytecode);
+
+extern struct lttng_ctx *lttng_static_ctx;
+
+int lttng_context_init(void);
+void lttng_context_exit(void);
struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
void lttng_context_update(struct lttng_ctx *ctx);
int lttng_find_context(struct lttng_ctx *ctx, const char *name);
+int lttng_get_context_index(struct lttng_ctx *ctx, const char *name);
void lttng_remove_context_field(struct lttng_ctx **ctx,
struct lttng_ctx_field *field);
void lttng_destroy_context(struct lttng_ctx *ctx);