struct lttng_ust_lib_ring_buffer_ctx;
struct lttng_ust_context_app;
struct lttng_event_field;
+struct lttng_trigger_group;
/*
* Data structures used by tracepoint event declarations, and by the
enum lttng_ust_dynamic_type sel;
union {
int64_t s64;
+ uint64_t u64;
const char *str;
double d;
} u;
union {
struct {
const char **model_emf_uri;
+ void (*trigger_callback)(void);
} ext;
char padding[LTTNG_UST_EVENT_DESC_PADDING];
} u;
/* Data structures used by the tracer. */
-enum lttng_enabler_type {
- LTTNG_ENABLER_STAR_GLOB,
- LTTNG_ENABLER_EVENT,
+enum lttng_enabler_format_type {
+ LTTNG_ENABLER_FORMAT_STAR_GLOB,
+ LTTNG_ENABLER_FORMAT_EVENT,
};
/*
* backward reference.
*/
struct lttng_enabler {
- enum lttng_enabler_type type;
+ enum lttng_enabler_format_type format_type;
/* head list of struct lttng_ust_filter_bytecode_node */
struct cds_list_head filter_bytecode_head;
/* head list of struct lttng_ust_excluder_node */
struct cds_list_head excluder_head;
- struct cds_list_head node; /* per-session list of enablers */
struct lttng_ust_event event_param;
- struct lttng_channel *chan;
- /*
- * Unused, but kept around to make it explicit that the tracer can do
- * it.
- */
- struct lttng_ctx *ctx;
unsigned int enabled:1;
};
struct ust_pending_probe;
struct lttng_event;
-struct lttng_ust_filter_bytecode_node {
- struct cds_list_head node;
- struct lttng_enabler *enabler;
- /*
- * struct lttng_ust_filter_bytecode has var. sized array, must
- * be last field.
- */
- struct lttng_ust_filter_bytecode bc;
-};
-
-struct lttng_ust_excluder_node {
- struct cds_list_head node;
- struct lttng_enabler *enabler;
- /*
- * struct lttng_ust_event_exclusion had variable sized array,
- * must be last field.
- */
- struct lttng_ust_event_exclusion excluder;
-};
/*
- * Filter return value masks.
+ * Bytecode interpreter return value masks.
*/
-enum lttng_filter_ret {
- LTTNG_FILTER_DISCARD = 0,
- LTTNG_FILTER_RECORD_FLAG = (1ULL << 0),
+enum lttng_bytecode_interpreter_ret {
+ LTTNG_INTERPRETER_DISCARD = 0,
+ LTTNG_INTERPRETER_RECORD_FLAG = (1ULL << 0),
/* Other bits are kept for future use. */
};
+struct lttng_interpreter_output;
+
/*
* This structure is used in the probes. More specifically, the `filter` and
* `node` fields are explicity used in the probes. When modifying this
*/
struct lttng_bytecode_runtime {
/* Associated bytecode */
- struct lttng_ust_filter_bytecode_node *bc;
- uint64_t (*filter)(void *filter_data, const char *filter_stack_data);
+ struct lttng_ust_bytecode_node *bc;
+ union {
+ uint64_t (*filter)(void *interpreter_data,
+ const char *interpreter_stack_data);
+ uint64_t (*capture)(void *interpreter_data,
+ const char *interpreter_stack_data,
+ struct lttng_interpreter_output *interpreter_output);
+ } interpreter_funcs;
int link_failed;
struct cds_list_head node; /* list of bytecode runtime in event */
- struct lttng_session *session;
+ /*
+ * Pointer to a URCU-protected pointer owned by an `struct
+ * lttng_session`or `struct lttng_trigger_group`.
+ */
+ struct lttng_ctx **pctx;
};
/*
- * Objects in a linked-list of enablers, owned by an event.
+ * Objects in a linked-list of enablers, owned by an event or trigger.
+ * This is used because an event (or a trigger) can be enabled by more than one
+ * enabler and we want a quick way to iterate over all enablers of an object.
+ *
+ * For example, event rules "my_app:a*" and "my_app:ab*" will both match the
+ * event with the name "my_app:abc".
*/
struct lttng_enabler_ref {
struct cds_list_head node; /* enabler ref list */
/* LTTng-UST 2.1 starts here */
/* list of struct lttng_bytecode_runtime, sorted by seqnum */
- struct cds_list_head bytecode_runtime_head;
+ struct cds_list_head filter_bytecode_runtime_head;
int has_enablers_without_bytecode;
/* Backward references: list of lttng_enabler_ref (ref to enablers) */
struct cds_list_head enablers_ref_head;
int registered; /* has reg'd tracepoint probe */
};
+struct lttng_trigger {
+ uint64_t id;
+ uint64_t error_counter_index;
+ int enabled;
+ int registered; /* has reg'd tracepoint probe */
+ size_t num_captures; /* Needed to allocate the msgpack array. */
+ struct cds_list_head filter_bytecode_runtime_head;
+ struct cds_list_head capture_bytecode_runtime_head;
+ int has_enablers_without_bytecode;
+ struct cds_list_head enablers_ref_head;
+ const struct lttng_event_desc *desc;
+ struct cds_hlist_node hlist; /* hashtable of triggers */
+ struct cds_list_head node; /* Trigger list in session */
+ struct lttng_trigger_group *group; /* weak ref */
+};
+
struct lttng_enum {
const struct lttng_enum_desc *desc;
struct lttng_session *session;
int tstate:1; /* Transient enable state */
};
+#define LTTNG_COUNTER_DIMENSION_MAX 8
+
+struct lttng_counter_dimension {
+ uint64_t size;
+ uint64_t underflow_index;
+ uint64_t overflow_index;
+ uint8_t has_underflow;
+ uint8_t has_overflow;
+};
+
+struct lttng_counter_ops {
+ struct lib_counter *(*counter_create)(size_t nr_dimensions,
+ const struct lttng_counter_dimension *dimensions,
+ int64_t global_sum_step,
+ int global_counter_fd,
+ int nr_counter_cpu_fds,
+ const int *counter_cpu_fds,
+ bool is_daemon);
+ void (*counter_destroy)(struct lib_counter *counter);
+ int (*counter_add)(struct lib_counter *counter,
+ const size_t *dimension_indexes, int64_t v);
+ int (*counter_read)(struct lib_counter *counter,
+ const size_t *dimension_indexes, int cpu,
+ int64_t *value, bool *overflow, bool *underflow);
+ int (*counter_aggregate)(struct lib_counter *counter,
+ const size_t *dimension_indexes, int64_t *value,
+ bool *overflow, bool *underflow);
+ int (*counter_clear)(struct lib_counter *counter, const size_t *dimension_indexes);
+};
+
#define LTTNG_UST_STACK_CTX_PADDING 32
struct lttng_stack_ctx {
struct lttng_event *event;
struct cds_hlist_head table[LTTNG_UST_EVENT_HT_SIZE];
};
+#define LTTNG_UST_TRIGGER_HT_BITS 12
+#define LTTNG_UST_TRIGGER_HT_SIZE (1U << LTTNG_UST_TRIGGER_HT_BITS)
+struct lttng_ust_trigger_ht {
+ struct cds_hlist_head table[LTTNG_UST_TRIGGER_HT_SIZE];
+};
+
#define LTTNG_UST_ENUM_HT_BITS 12
#define LTTNG_UST_ENUM_HT_SIZE (1U << LTTNG_UST_ENUM_HT_BITS)
struct lttng_ctx *ctx; /* contexts for filters. */
};
+struct lttng_counter {
+ int objd;
+ struct lttng_trigger_group *trigger_group; /* owner */
+ struct lttng_counter_transport *transport;
+ struct lib_counter *counter;
+ struct lttng_counter_ops *ops;
+};
+
+struct lttng_trigger_group {
+ int objd;
+ void *owner;
+ int notification_fd;
+ struct cds_list_head node; /* Trigger group handle list */
+ struct cds_list_head enablers_head;
+ struct cds_list_head triggers_head; /* list of triggers */
+ struct lttng_ust_trigger_ht triggers_ht; /* hashtable of triggers */
+ struct lttng_ctx *ctx; /* contexts for filters. */
+
+ struct lttng_counter *error_counter;
+ size_t error_counter_len;
+};
+
struct lttng_transport {
char *name;
struct cds_list_head node;
const struct lttng_ust_lib_ring_buffer_config *client_config;
};
+struct lttng_counter_transport {
+ char *name;
+ struct cds_list_head node;
+ struct lttng_counter_ops ops;
+ const struct lib_counter_config *client_config;
+};
+
struct lttng_session *lttng_session_create(void);
int lttng_session_enable(struct lttng_session *session);
int lttng_session_disable(struct lttng_session *session);
int lttng_session_statedump(struct lttng_session *session);
void lttng_session_destroy(struct lttng_session *session);
+void lttng_trigger_notification_send(struct lttng_trigger *trigger, const char *stack_data);
+
struct lttng_channel *lttng_channel_create(struct lttng_session *session,
const char *transport_name,
void *buf_addr,
int lttng_channel_enable(struct lttng_channel *channel);
int lttng_channel_disable(struct lttng_channel *channel);
-struct lttng_enabler *lttng_enabler_create(enum lttng_enabler_type type,
- struct lttng_ust_event *event_param,
- struct lttng_channel *chan);
-int lttng_enabler_enable(struct lttng_enabler *enabler);
-int lttng_enabler_disable(struct lttng_enabler *enabler);
-int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler,
- struct lttng_ust_filter_bytecode_node *bytecode);
-int lttng_enabler_attach_context(struct lttng_enabler *enabler,
- struct lttng_ust_context *ctx);
-int lttng_enabler_attach_exclusion(struct lttng_enabler *enabler,
- struct lttng_ust_excluder_node *excluder);
-
int lttng_attach_context(struct lttng_ust_context *context_param,
union ust_args *uargs,
struct lttng_ctx **ctx, struct lttng_session *session);
-int lttng_session_context_init(struct lttng_ctx **ctx);
-
void lttng_transport_register(struct lttng_transport *transport);
void lttng_transport_unregister(struct lttng_transport *transport);
+void lttng_counter_transport_register(struct lttng_counter_transport *transport);
+void lttng_counter_transport_unregister(struct lttng_counter_transport *transport);
+
+struct lttng_counter *lttng_ust_counter_create(
+ const char *counter_transport_name,
+ size_t number_dimensions, const struct lttng_counter_dimension *dimensions);
+
void synchronize_trace(void);
int lttng_probe_register(struct lttng_probe_desc *desc);
extern const struct lttng_ust_client_lib_ring_buffer_client_cb *lttng_client_callbacks_overwrite;
struct lttng_transport *lttng_transport_find(const char *name);
+struct lttng_counter_transport *lttng_counter_transport_find(const char *name);
int lttng_probes_get_event_list(struct lttng_ust_tracepoint_list *list);
void lttng_probes_prune_event_list(struct lttng_ust_tracepoint_list *list);
struct lttng_ust_field_iter *
lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list);
-void lttng_enabler_event_link_bytecode(struct lttng_event *event,
- struct lttng_enabler *enabler);
void lttng_free_event_filter_runtime(struct lttng_event *event);
-void lttng_filter_sync_state(struct lttng_bytecode_runtime *runtime);
struct cds_list_head *lttng_get_probe_list_head(void);
int lttng_session_active(void);
/* For backward compatibility. Leave those exported symbols in place. */
extern struct lttng_ctx *lttng_static_ctx;
+struct lttng_ust_filter_bytecode_node;
+struct lttng_ust_excluder_node;
void lttng_context_init(void);
void lttng_context_exit(void);
void lttng_filter_event_link_bytecode(struct lttng_event *event);
+struct lttng_enabler *lttng_enabler_create(
+ enum lttng_enabler_format_type format_type,
+ struct lttng_ust_event *event_param,
+ struct lttng_channel *chan);
+int lttng_enabler_enable(struct lttng_enabler *enabler);
+int lttng_enabler_disable(struct lttng_enabler *enabler);
+int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler,
+ struct lttng_ust_filter_bytecode_node *bytecode);
+int lttng_enabler_attach_context(struct lttng_enabler *enabler,
+ struct lttng_ust_context *ctx);
+int lttng_enabler_attach_exclusion(struct lttng_enabler *enabler,
+ struct lttng_ust_excluder_node *excluder);
+void lttng_enabler_event_link_bytecode(struct lttng_event *event,
+ struct lttng_enabler *enabler);
+void lttng_filter_sync_state(struct lttng_bytecode_runtime *runtime);
+int lttng_session_context_init(struct lttng_ctx **ctx);
+
#ifdef __cplusplus
}
projects / deliverable / lttng-ust.git / blobdiff