struct lttng_enabler *ref; /* backward ref */
};
+struct lttng_krp; /* Kretprobe handling */
+
+struct lttng_uprobe_handler {
+ struct lttng_kernel_event_common *event;
+ loff_t offset;
+ struct uprobe_consumer up_consumer;
+ struct list_head node;
+};
+
+struct lttng_kprobe {
+ struct kprobe kp;
+ char *symbol_name;
+};
+
+struct lttng_uprobe {
+ struct inode *inode;
+ struct list_head head;
+};
+
+enum lttng_syscall_entryexit {
+ LTTNG_SYSCALL_ENTRY,
+ LTTNG_SYSCALL_EXIT,
+};
+
+enum lttng_syscall_abi {
+ LTTNG_SYSCALL_ABI_NATIVE,
+ LTTNG_SYSCALL_ABI_COMPAT,
+};
+
struct lttng_kernel_event_common_private {
struct lttng_kernel_event_common *pub; /* Public event interface */
size_t largest_align; /* in bytes */
};
+struct lttng_metadata_cache {
+ char *data; /* Metadata cache */
+ unsigned int cache_alloc; /* Metadata allocated size (bytes) */
+ unsigned int metadata_written; /* Number of bytes written in metadata cache */
+ atomic_t producing; /* Metadata being produced (incomplete) */
+ struct kref refcount; /* Metadata cache usage */
+ struct list_head metadata_stream; /* Metadata stream list */
+ uuid_le uuid; /* Trace session unique ID (copy) */
+ struct mutex lock; /* Produce/consume lock */
+ uint64_t version; /* Current version of the metadata */
+};
+
extern struct lttng_kernel_ctx *lttng_static_ctx;
static inline
}
#endif
+void lttng_lock_sessions(void);
+void lttng_unlock_sessions(void);
+
+struct list_head *lttng_get_probe_list_head(void);
+
+int lttng_fix_pending_events(void);
+int lttng_fix_pending_event_notifiers(void);
+int lttng_session_active(void);
+bool lttng_event_notifier_active(void);
+
+struct lttng_session *lttng_session_create(void);
+int lttng_session_enable(struct lttng_session *session);
+int lttng_session_disable(struct lttng_session *session);
+void lttng_session_destroy(struct lttng_session *session);
+int lttng_session_metadata_regenerate(struct lttng_session *session);
+int lttng_session_statedump(struct lttng_session *session);
+void metadata_cache_destroy(struct kref *kref);
+
+struct lttng_counter *lttng_kernel_counter_create(
+ const char *counter_transport_name, size_t number_dimensions,
+ const size_t *dimensions_sizes);
+int lttng_kernel_counter_read(struct lttng_counter *counter,
+ const size_t *dimension_indexes, int32_t cpu,
+ int64_t *val, bool *overflow, bool *underflow);
+int lttng_kernel_counter_aggregate(struct lttng_counter *counter,
+ const size_t *dimension_indexes, int64_t *val,
+ bool *overflow, bool *underflow);
+int lttng_kernel_counter_clear(struct lttng_counter *counter,
+ const size_t *dimension_indexes);
+struct lttng_event_notifier_group *lttng_event_notifier_group_create(void);
+int lttng_event_notifier_group_create_error_counter(
+ struct file *event_notifier_group_file,
+ const struct lttng_kernel_abi_counter_conf *error_counter_conf);
+void lttng_event_notifier_group_destroy(
+ struct lttng_event_notifier_group *event_notifier_group);
+
+struct lttng_channel *lttng_channel_create(struct lttng_session *session,
+ const char *transport_name,
+ void *buf_addr,
+ size_t subbuf_size, size_t num_subbuf,
+ unsigned int switch_timer_interval,
+ unsigned int read_timer_interval,
+ enum channel_type channel_type);
+struct lttng_channel *lttng_global_channel_create(struct lttng_session *session,
+ int overwrite, void *buf_addr,
+ size_t subbuf_size, size_t num_subbuf,
+ unsigned int switch_timer_interval,
+ unsigned int read_timer_interval);
+
+void lttng_metadata_channel_destroy(struct lttng_channel *chan);
+struct lttng_kernel_event_recorder *lttng_kernel_event_recorder_create(struct lttng_channel *chan,
+ struct lttng_kernel_abi_event *event_param,
+ const struct lttng_kernel_event_desc *event_desc,
+ enum lttng_kernel_abi_instrumentation itype);
+struct lttng_kernel_event_recorder *_lttng_kernel_event_recorder_create(struct lttng_channel *chan,
+ struct lttng_kernel_abi_event *event_param,
+ const struct lttng_kernel_event_desc *event_desc,
+ enum lttng_kernel_abi_instrumentation itype);
+struct lttng_kernel_event_recorder *lttng_event_compat_old_create(struct lttng_channel *chan,
+ struct lttng_kernel_abi_old_event *old_event_param,
+ const struct lttng_kernel_event_desc *internal_desc);
+
+struct lttng_kernel_event_notifier *lttng_event_notifier_create(
+ const struct lttng_kernel_event_desc *event_notifier_desc,
+ uint64_t id,
+ uint64_t error_counter_idx,
+ struct lttng_event_notifier_group *event_notifier_group,
+ struct lttng_kernel_abi_event_notifier *event_notifier_param,
+ enum lttng_kernel_abi_instrumentation itype);
+struct lttng_kernel_event_notifier *_lttng_event_notifier_create(
+ const struct lttng_kernel_event_desc *event_notifier_desc,
+ uint64_t id,
+ uint64_t error_counter_idx,
+ struct lttng_event_notifier_group *event_notifier_group,
+ struct lttng_kernel_abi_event_notifier *event_notifier_param,
+ enum lttng_kernel_abi_instrumentation itype);
+
+int lttng_channel_enable(struct lttng_channel *channel);
+int lttng_channel_disable(struct lttng_channel *channel);
+int lttng_event_enable(struct lttng_kernel_event_common *event);
+int lttng_event_disable(struct lttng_kernel_event_common *event);
+
+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);
+
+void synchronize_trace(void);
+int lttng_abi_init(void);
+int lttng_abi_compat_old_init(void);
+void lttng_abi_exit(void);
+void lttng_abi_compat_old_exit(void);
+
+const struct lttng_kernel_event_desc *lttng_event_desc_get(const char *name);
+void lttng_event_desc_put(const struct lttng_kernel_event_desc *desc);
+int lttng_probes_init(void);
+void lttng_probes_exit(void);
+
+int lttng_metadata_output_channel(struct lttng_metadata_stream *stream,
+ struct channel *chan, bool *coherent);
+
+int lttng_id_tracker_get_node_id(const struct lttng_id_hash_node *node);
+int lttng_id_tracker_empty_set(struct lttng_id_tracker *lf);
+void lttng_id_tracker_destroy(struct lttng_id_tracker *lf, bool rcu);
+int lttng_id_tracker_add(struct lttng_id_tracker *lf, int id);
+int lttng_id_tracker_del(struct lttng_id_tracker *lf, int id);
+
+int lttng_session_track_id(struct lttng_session *session,
+ enum tracker_type tracker_type, int id);
+int lttng_session_untrack_id(struct lttng_session *session,
+ enum tracker_type tracker_type, int id);
+
+int lttng_session_list_tracker_ids(struct lttng_session *session,
+ enum tracker_type tracker_type);
+
+void lttng_clock_ref(void);
+void lttng_clock_unref(void);
+
+void lttng_free_event_filter_runtime(struct lttng_kernel_event_common *event);
+
+int lttng_probes_init(void);
+
+int lttng_logger_init(void);
+void lttng_logger_exit(void);
+
+extern int lttng_statedump_start(struct lttng_session *session);
+
+int lttng_calibrate(struct lttng_kernel_abi_calibrate *calibrate);
+
+extern const struct file_operations lttng_tracepoint_list_fops;
+extern const struct file_operations lttng_syscall_list_fops;
+
#define lttng_kernel_static_ctx_field(_event_field, _get_size, _record, _get_value, _destroy, _priv) \
__LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_ctx_field, { \
.event_field = (_event_field), \
projects / lttng-modules.git / blobdiff