int lazy; /* lazy registration */
};
-struct lttng_krp; /* Kretprobe handling */
-
-enum lttng_kernel_bytecode_type {
- LTTNG_KERNEL_BYTECODE_TYPE_FILTER,
- LTTNG_KERNEL_BYTECODE_TYPE_CAPTURE,
-};
-
-struct lttng_kernel_bytecode_node {
- enum lttng_kernel_bytecode_type type;
- struct list_head node;
- struct lttng_enabler *enabler;
- struct {
- uint32_t len;
- uint32_t reloc_offset;
- uint64_t seqnum;
- char data[];
- } bc;
-};
-
-struct lttng_interpreter_output;
-
-struct lttng_kernel_bytecode_runtime {
- /* Associated bytecode */
- enum lttng_kernel_bytecode_type type;
- struct lttng_kernel_bytecode_node *bc;
- int (*interpreter_func)(struct lttng_kernel_bytecode_runtime *kernel_bytecode,
- const char *interpreter_stack_data,
- struct lttng_kernel_probe_ctx *lttng_probe_ctx,
- void *caller_ctx);
- int link_failed;
- struct list_head node; /* list of bytecode runtime in event */
- struct lttng_kernel_ctx *ctx;
-};
-
-/*
- * Objects in a linked-list of enablers, owned by an event.
- */
-struct lttng_enabler_ref {
- struct list_head node; /* enabler ref list */
- struct lttng_enabler *ref; /* backward ref */
-};
-
-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,
-};
-
/*
* Result of the run_filter() callback.
*/
struct lttng_kernel_notification_ctx *notif_ctx);
};
-enum lttng_enabler_format_type {
- LTTNG_ENABLER_FORMAT_STAR_GLOB,
- LTTNG_ENABLER_FORMAT_NAME,
-};
-
struct lttng_channel_ops {
struct channel *(*channel_create)(const char *name,
void *priv,
uint64_t version; /* Current version of the metadata */
};
-void lttng_lock_sessions(void);
-void lttng_unlock_sessions(void);
-
-struct list_head *lttng_get_probe_list_head(void);
-
-struct lttng_event_enabler *lttng_event_enabler_create(
- enum lttng_enabler_format_type format_type,
- struct lttng_kernel_abi_event *event_param,
- struct lttng_channel *chan);
-
-int lttng_event_enabler_enable(struct lttng_event_enabler *event_enabler);
-int lttng_event_enabler_disable(struct lttng_event_enabler *event_enabler);
-struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create(
- struct lttng_event_notifier_group *event_notifier_group,
- enum lttng_enabler_format_type format_type,
- struct lttng_kernel_abi_event_notifier *event_notifier_param);
-
-int lttng_event_notifier_enabler_enable(
- struct lttng_event_notifier_enabler *event_notifier_enabler);
-int lttng_event_notifier_enabler_disable(
- struct lttng_event_notifier_enabler *event_notifier_enabler);
-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);
-
int lttng_probe_register(struct lttng_kernel_probe_desc *desc);
void lttng_probe_unregister(struct lttng_kernel_probe_desc *desc);
-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);
bool lttng_id_tracker_lookup(struct lttng_id_tracker_rcu *p, int id);
-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);
-
-int lttng_desc_match_enabler(const struct lttng_kernel_event_desc *desc,
- struct lttng_enabler *enabler);
-
-#if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)
-int lttng_syscalls_register_event(struct lttng_event_enabler *event_enabler);
-int lttng_syscalls_unregister_channel(struct lttng_channel *chan);
-int lttng_syscalls_destroy_event(struct lttng_channel *chan);
-int lttng_syscall_filter_enable_event(
- struct lttng_channel *chan,
- struct lttng_kernel_event_recorder *event);
-int lttng_syscall_filter_disable_event(
- struct lttng_channel *chan,
- struct lttng_kernel_event_recorder *event);
-
-long lttng_channel_syscall_mask(struct lttng_channel *channel,
- struct lttng_kernel_abi_syscall_mask __user *usyscall_mask);
-
-int lttng_syscalls_register_event_notifier(
- struct lttng_event_notifier_enabler *event_notifier_enabler);
-int lttng_syscalls_create_matching_event_notifiers(
- struct lttng_event_notifier_enabler *event_notifier_enabler);
-int lttng_syscalls_unregister_event_notifier_group(struct lttng_event_notifier_group *group);
-int lttng_syscall_filter_enable_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-int lttng_syscall_filter_disable_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-#else
-static inline int lttng_syscalls_register_event(
- struct lttng_event_enabler *event_enabler)
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscalls_unregister_channel(struct lttng_channel *chan)
-{
- return 0;
-}
-
-static inline int lttng_syscalls_destroy(struct lttng_channel *chan)
-{
- return 0;
-}
-
-static inline int lttng_syscall_filter_enable_event(struct lttng_channel *chan,
- struct lttng_kernel_event_recorder *event);
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscall_filter_disable_event(struct lttng_channel *chan,
- struct lttng_kernel_event_recorder *event);
-{
- return -ENOSYS;
-}
-
-static inline long lttng_channel_syscall_mask(struct lttng_channel *channel,
- struct lttng_kernel_syscall_mask __user *usyscall_mask)
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscalls_register_event_notifier(
- struct lttng_event_notifier_group *group)
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscalls_unregister_event_notifier_group(
- struct lttng_event_notifier_group *group)
-{
- return 0;
-}
-
-static inline int lttng_syscall_filter_enable_event_notifier(
- struct lttng_event_notifier_group *group,
- const char *name)
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscall_filter_disable_event_notifier(
- struct lttng_event_notifier_group *group,
- const char *name)
-{
- return -ENOSYS;
-}
-
-#endif
-
-int lttng_event_enabler_attach_filter_bytecode(struct lttng_event_enabler *event_enabler,
- struct lttng_kernel_abi_filter_bytecode __user *bytecode);
-int lttng_event_notifier_enabler_attach_filter_bytecode(
- struct lttng_event_notifier_enabler *event_notifier_enabler,
- struct lttng_kernel_abi_filter_bytecode __user *bytecode);
-int lttng_event_notifier_enabler_attach_capture_bytecode(
- struct lttng_event_notifier_enabler *event_notifier_enabler,
- struct lttng_kernel_abi_capture_bytecode __user *bytecode);
-
-void lttng_enabler_link_bytecode(const struct lttng_kernel_event_desc *event_desc,
- struct lttng_kernel_ctx *ctx,
- struct list_head *instance_bytecode_runtime_head,
- struct list_head *enabler_bytecode_runtime_head);
-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);
-
-#ifdef CONFIG_KPROBES
-int lttng_kprobes_register_event(const char *name,
- const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_recorder *event);
-void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event);
-void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event);
-int lttng_kprobes_register_event_notifier(const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_notifier *event_notifier);
-void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier);
-#else
-static inline
-int lttng_kprobes_register_event(const char *name,
- const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_recorder *event)
-{
- return -ENOSYS;
-}
-
-static inline
-void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-int lttng_kprobes_register_event_notifier(const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_notifier *event_notifier)
-{
- return -ENOSYS;
-}
-
-static inline
-void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier)
-{
-}
-
-static inline
-void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier)
-{
-}
-#endif
-
-int lttng_event_add_callsite(struct lttng_kernel_event_common *event,
- struct lttng_kernel_abi_event_callsite __user *callsite);
-
-#ifdef CONFIG_UPROBES
-int lttng_uprobes_register_event(const char *name,
- int fd, struct lttng_kernel_event_recorder *event);
-int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
- struct lttng_kernel_abi_event_callsite __user *callsite);
-void lttng_uprobes_unregister_event(struct lttng_kernel_event_recorder *event);
-void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_recorder *event);
-int lttng_uprobes_register_event_notifier(const char *name,
- int fd, struct lttng_kernel_event_notifier *event_notifier);
-void lttng_uprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-void lttng_uprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier);
-#else
-static inline
-int lttng_uprobes_register_event(const char *name,
- int fd, struct lttng_kernel_event_recorder *event)
-{
- return -ENOSYS;
-}
-
-static inline
-int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
- struct lttng_kernel_abi_event_callsite __user *callsite)
-{
- return -ENOSYS;
-}
-
-static inline
-void lttng_uprobes_unregister_event(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-int lttng_uprobes_register_event_notifier(const char *name,
- int fd, struct lttng_kernel_event_notifier *event_notifier)
-{
- return -ENOSYS;
-}
-
-static inline
-void lttng_uprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier)
-{
-}
-
-static inline
-void lttng_uprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier)
-{
-}
-#endif
-
-#ifdef CONFIG_KRETPROBES
-int lttng_kretprobes_register(const char *name,
- const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_recorder *event_entry,
- struct lttng_kernel_event_recorder *event_exit);
-void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event);
-void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event);
-int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event,
- int enable);
-#else
-static inline
-int lttng_kretprobes_register(const char *name,
- const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_recorder *event_entry,
- struct lttng_kernel_event_recorder *event_exit)
-{
- return -ENOSYS;
-}
-
-static inline
-void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event,
- int enable)
-{
- return -ENOSYS;
-}
-#endif
-
-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 TRACEPOINT_HAS_DATA_ARG
#endif /* _LTTNG_EVENTS_H */
projects / lttng-modules.git / blobdiff