1 #ifndef _LTTNG_EVENTS_H
2 #define _LTTNG_EVENTS_H
7 * Holds LTTng per-session event registry.
9 * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; only
14 * version 2.1 of the License.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include <linux/version.h>
27 #include <linux/list.h>
28 #include <linux/kprobes.h>
29 #include <linux/kref.h>
30 #include <wrapper/uuid.h>
31 #include <lttng-tracer.h>
32 #include <lttng-abi.h>
33 #include <lttng-abi-old.h>
35 #define lttng_is_signed_type(type) (((type)(-1)) < 0)
39 struct lttng_metadata_cache
;
40 struct lib_ring_buffer_ctx
;
42 struct perf_event_attr
;
43 struct lib_ring_buffer_config
;
45 /* Type description */
54 atype_array_compound
, /* Array of compound types. */
55 atype_sequence_compound
, /* Sequence of compound types. */
60 enum lttng_string_encodings
{
61 lttng_encode_none
= 0,
62 lttng_encode_UTF8
= 1,
63 lttng_encode_ASCII
= 2,
72 struct lttng_enum_entry
{
73 unsigned long long start
, end
; /* start and end are inclusive */
77 #define __type_integer(_type, _size, _alignment, _signedness, \
78 _byte_order, _base, _encoding) \
80 .atype = atype_integer, \
83 .size = (_size) ? : sizeof(_type) * CHAR_BIT, \
84 .alignment = (_alignment) ? : lttng_alignof(_type) * CHAR_BIT, \
85 .signedness = (_signedness) >= 0 ? (_signedness) : lttng_is_signed_type(_type), \
86 .reverse_byte_order = _byte_order != __BYTE_ORDER, \
88 .encoding = lttng_encode_##_encoding, \
92 struct lttng_integer_type {
93 unsigned int size
; /* in bits */
94 unsigned short alignment
; /* in bits */
95 unsigned int signedness
:1,
97 unsigned int base
; /* 2, 8, 10, 16, for pretty print */
98 enum lttng_string_encodings encoding
;
101 union _lttng_basic_type
{
102 struct lttng_integer_type integer
;
107 enum lttng_string_encodings encoding
;
111 struct lttng_basic_type
{
112 enum abstract_types atype
;
114 union _lttng_basic_type basic
;
119 enum abstract_types atype
;
121 union _lttng_basic_type basic
;
123 struct lttng_basic_type elem_type
;
124 unsigned int length
; /* num. elems. */
125 unsigned int elem_alignment
; /* alignment override */
128 struct lttng_basic_type length_type
;
129 struct lttng_basic_type elem_type
;
130 unsigned int elem_alignment
; /* alignment override */
134 struct lttng_event_field
*fields
; /* Array of fields. */
137 struct lttng_type
*elem_type
;
138 unsigned int length
; /* num. elems. */
141 struct lttng_type
*elem_type
;
142 const char *length_name
;
145 const char *tag_name
;
146 struct lttng_event_field
*choices
; /* Array of fields. */
154 struct lttng_type container_type
;
155 const struct lttng_enum_entry
*entries
;
159 /* Event field description */
161 struct lttng_event_field
{
163 struct lttng_type type
;
164 unsigned int nowrite
:1, /* do not write into trace */
165 user
:1; /* fetch from user-space */
168 union lttng_ctx_value
{
175 * We need to keep this perf counter field separately from struct
176 * lttng_ctx_field because cpu hotplug needs fixed-location addresses.
178 struct lttng_perf_counter_field
{
179 struct notifier_block nb
;
181 struct perf_event_attr
*attr
;
182 struct perf_event
**e
; /* per-cpu array */
185 struct lttng_probe_ctx
{
186 struct lttng_event
*event
;
187 uint8_t interruptible
;
190 struct lttng_ctx_field
{
191 struct lttng_event_field event_field
;
192 size_t (*get_size
)(size_t offset
);
193 void (*record
)(struct lttng_ctx_field
*field
,
194 struct lib_ring_buffer_ctx
*ctx
,
195 struct lttng_channel
*chan
);
196 void (*get_value
)(struct lttng_ctx_field
*field
,
197 struct lttng_probe_ctx
*lttng_probe_ctx
,
198 union lttng_ctx_value
*value
);
200 struct lttng_perf_counter_field
*perf_counter
;
202 void (*destroy
)(struct lttng_ctx_field
*field
);
206 struct lttng_ctx_field
*fields
;
207 unsigned int nr_fields
;
208 unsigned int allocated_fields
;
209 size_t largest_align
; /* in bytes */
212 struct lttng_event_desc
{
213 const char *name
; /* lttng-modules name */
214 const char *kname
; /* Linux kernel name (tracepoints) */
215 void *probe_callback
;
216 const struct lttng_event_ctx
*ctx
; /* context */
217 const struct lttng_event_field
*fields
; /* event payload */
218 unsigned int nr_fields
;
219 struct module
*owner
;
222 struct lttng_probe_desc
{
223 const char *provider
;
224 const struct lttng_event_desc
**event_desc
;
225 unsigned int nr_events
;
226 struct list_head head
; /* chain registered probes */
227 struct list_head lazy_init_head
;
228 int lazy
; /* lazy registration */
231 struct lttng_krp
; /* Kretprobe handling */
233 enum lttng_event_type
{
234 LTTNG_TYPE_EVENT
= 0,
235 LTTNG_TYPE_ENABLER
= 1,
238 struct lttng_filter_bytecode_node
{
239 struct list_head node
;
240 struct lttng_enabler
*enabler
;
242 * struct lttng_kernel_filter_bytecode has var. sized array, must be
245 struct lttng_kernel_filter_bytecode bc
;
249 * Filter return value masks.
251 enum lttng_filter_ret
{
252 LTTNG_FILTER_DISCARD
= 0,
253 LTTNG_FILTER_RECORD_FLAG
= (1ULL << 0),
254 /* Other bits are kept for future use. */
257 struct lttng_bytecode_runtime
{
258 /* Associated bytecode */
259 struct lttng_filter_bytecode_node
*bc
;
260 uint64_t (*filter
)(void *filter_data
, struct lttng_probe_ctx
*lttng_probe_ctx
,
261 const char *filter_stack_data
);
263 struct list_head node
; /* list of bytecode runtime in event */
267 * Objects in a linked-list of enablers, owned by an event.
269 struct lttng_enabler_ref
{
270 struct list_head node
; /* enabler ref list */
271 struct lttng_enabler
*ref
; /* backward ref */
275 * lttng_event structure is referred to by the tracing fast path. It must be
279 enum lttng_event_type evtype
; /* First field. */
281 struct lttng_channel
*chan
;
283 const struct lttng_event_desc
*desc
;
285 struct lttng_ctx
*ctx
;
286 enum lttng_kernel_instrumentation instrumentation
;
293 struct lttng_krp
*lttng_krp
;
300 struct list_head list
; /* Event list in session */
301 unsigned int metadata_dumped
:1;
303 /* Backward references: list of lttng_enabler_ref (ref to enablers) */
304 struct list_head enablers_ref_head
;
305 struct hlist_node hlist
; /* session ht of events */
306 int registered
; /* has reg'd tracepoint probe */
307 /* list of struct lttng_bytecode_runtime, sorted by seqnum */
308 struct list_head bytecode_runtime_head
;
309 int has_enablers_without_bytecode
;
312 enum lttng_enabler_type
{
313 LTTNG_ENABLER_WILDCARD
,
318 * Enabler field, within whatever object is enabling an event. Target of
319 * backward reference.
321 struct lttng_enabler
{
322 enum lttng_event_type evtype
; /* First field. */
324 enum lttng_enabler_type type
;
326 struct list_head node
; /* per-session list of enablers */
327 /* head list of struct lttng_ust_filter_bytecode_node */
328 struct list_head filter_bytecode_head
;
330 struct lttng_kernel_event event_param
;
331 struct lttng_channel
*chan
;
332 struct lttng_ctx
*ctx
;
333 unsigned int enabled
:1;
336 struct lttng_channel_ops
{
337 struct channel
*(*channel_create
)(const char *name
,
338 struct lttng_channel
*lttng_chan
,
340 size_t subbuf_size
, size_t num_subbuf
,
341 unsigned int switch_timer_interval
,
342 unsigned int read_timer_interval
);
343 void (*channel_destroy
)(struct channel
*chan
);
344 struct lib_ring_buffer
*(*buffer_read_open
)(struct channel
*chan
);
345 int (*buffer_has_read_closed_stream
)(struct channel
*chan
);
346 void (*buffer_read_close
)(struct lib_ring_buffer
*buf
);
347 int (*event_reserve
)(struct lib_ring_buffer_ctx
*ctx
,
349 void (*event_commit
)(struct lib_ring_buffer_ctx
*ctx
);
350 void (*event_write
)(struct lib_ring_buffer_ctx
*ctx
, const void *src
,
352 void (*event_write_from_user
)(struct lib_ring_buffer_ctx
*ctx
,
353 const void *src
, size_t len
);
354 void (*event_memset
)(struct lib_ring_buffer_ctx
*ctx
,
356 void (*event_strcpy
)(struct lib_ring_buffer_ctx
*ctx
, const char *src
,
358 void (*event_strcpy_from_user
)(struct lib_ring_buffer_ctx
*ctx
,
359 const char __user
*src
, size_t len
);
361 * packet_avail_size returns the available size in the current
362 * packet. Note that the size returned is only a hint, since it
363 * may change due to concurrent writes.
365 size_t (*packet_avail_size
)(struct channel
*chan
);
366 wait_queue_head_t
*(*get_writer_buf_wait_queue
)(struct channel
*chan
, int cpu
);
367 wait_queue_head_t
*(*get_hp_wait_queue
)(struct channel
*chan
);
368 int (*is_finalized
)(struct channel
*chan
);
369 int (*is_disabled
)(struct channel
*chan
);
370 int (*timestamp_begin
) (const struct lib_ring_buffer_config
*config
,
371 struct lib_ring_buffer
*bufb
,
372 uint64_t *timestamp_begin
);
373 int (*timestamp_end
) (const struct lib_ring_buffer_config
*config
,
374 struct lib_ring_buffer
*bufb
,
375 uint64_t *timestamp_end
);
376 int (*events_discarded
) (const struct lib_ring_buffer_config
*config
,
377 struct lib_ring_buffer
*bufb
,
378 uint64_t *events_discarded
);
379 int (*content_size
) (const struct lib_ring_buffer_config
*config
,
380 struct lib_ring_buffer
*bufb
,
381 uint64_t *content_size
);
382 int (*packet_size
) (const struct lib_ring_buffer_config
*config
,
383 struct lib_ring_buffer
*bufb
,
384 uint64_t *packet_size
);
385 int (*stream_id
) (const struct lib_ring_buffer_config
*config
,
386 struct lib_ring_buffer
*bufb
,
387 uint64_t *stream_id
);
388 int (*current_timestamp
) (const struct lib_ring_buffer_config
*config
,
389 struct lib_ring_buffer
*bufb
,
391 int (*sequence_number
) (const struct lib_ring_buffer_config
*config
,
392 struct lib_ring_buffer
*bufb
,
394 int (*instance_id
) (const struct lib_ring_buffer_config
*config
,
395 struct lib_ring_buffer
*bufb
,
399 struct lttng_transport
{
401 struct module
*owner
;
402 struct list_head node
;
403 struct lttng_channel_ops ops
;
406 struct lttng_syscall_filter
;
408 #define LTTNG_EVENT_HT_BITS 12
409 #define LTTNG_EVENT_HT_SIZE (1U << LTTNG_EVENT_HT_BITS)
411 struct lttng_event_ht
{
412 struct hlist_head table
[LTTNG_EVENT_HT_SIZE
];
415 struct lttng_channel
{
417 struct channel
*chan
; /* Channel buffers */
419 struct lttng_ctx
*ctx
;
420 /* Event ID management */
421 struct lttng_session
*session
;
422 struct file
*file
; /* File associated to channel */
423 unsigned int free_event_id
; /* Next event ID to allocate */
424 struct list_head list
; /* Channel list */
425 struct lttng_channel_ops
*ops
;
426 struct lttng_transport
*transport
;
427 struct lttng_event
**sc_table
; /* for syscall tracing */
428 struct lttng_event
**compat_sc_table
;
429 struct lttng_event
**sc_exit_table
; /* for syscall exit tracing */
430 struct lttng_event
**compat_sc_exit_table
;
431 struct lttng_event
*sc_unknown
; /* for unknown syscalls */
432 struct lttng_event
*sc_compat_unknown
;
433 struct lttng_event
*sc_exit_unknown
;
434 struct lttng_event
*compat_sc_exit_unknown
;
435 struct lttng_syscall_filter
*sc_filter
;
436 int header_type
; /* 0: unset, 1: compact, 2: large */
437 enum channel_type channel_type
;
438 unsigned int metadata_dumped
:1,
439 sys_enter_registered
:1,
440 sys_exit_registered
:1,
442 tstate
:1; /* Transient enable state */
445 struct lttng_metadata_stream
{
446 void *priv
; /* Ring buffer private data */
447 struct lttng_metadata_cache
*metadata_cache
;
448 unsigned int metadata_in
; /* Bytes read from the cache */
449 unsigned int metadata_out
; /* Bytes consumed from stream */
450 int finalized
; /* Has channel been finalized */
451 wait_queue_head_t read_wait
; /* Reader buffer-level wait queue */
452 struct list_head list
; /* Stream list */
453 struct lttng_transport
*transport
;
454 uint64_t version
; /* Current version of the metadata cache */
457 #define LTTNG_DYNAMIC_LEN_STACK_SIZE 128
459 struct lttng_dynamic_len_stack
{
460 size_t stack
[LTTNG_DYNAMIC_LEN_STACK_SIZE
];
464 DECLARE_PER_CPU(struct lttng_dynamic_len_stack
, lttng_dynamic_len_stack
);
467 * struct lttng_pid_tracker declared in header due to deferencing of *v
468 * in RCU_INITIALIZER(v).
470 #define LTTNG_PID_HASH_BITS 6
471 #define LTTNG_PID_TABLE_SIZE (1 << LTTNG_PID_HASH_BITS)
473 struct lttng_pid_tracker
{
474 struct hlist_head pid_hash
[LTTNG_PID_TABLE_SIZE
];
477 struct lttng_pid_hash_node
{
478 struct hlist_node hlist
;
482 struct lttng_session
{
483 int active
; /* Is trace session active ? */
484 int been_active
; /* Has trace session been active ? */
485 struct file
*file
; /* File associated to session */
486 struct list_head chan
; /* Channel list head */
487 struct list_head events
; /* Event list head */
488 struct list_head list
; /* Session list */
489 unsigned int free_chan_id
; /* Next chan ID to allocate */
490 uuid_le uuid
; /* Trace session unique ID */
491 struct lttng_metadata_cache
*metadata_cache
;
492 struct lttng_pid_tracker
*pid_tracker
;
493 unsigned int metadata_dumped
:1,
494 tstate
:1; /* Transient enable state */
495 /* List of enablers */
496 struct list_head enablers_head
;
497 /* Hash table of events */
498 struct lttng_event_ht events_ht
;
501 struct lttng_metadata_cache
{
502 char *data
; /* Metadata cache */
503 unsigned int cache_alloc
; /* Metadata allocated size (bytes) */
504 unsigned int metadata_written
; /* Number of bytes written in metadata cache */
505 struct kref refcount
; /* Metadata cache usage */
506 struct list_head metadata_stream
; /* Metadata stream list */
507 uuid_le uuid
; /* Trace session unique ID (copy) */
508 struct mutex lock
; /* Produce/consume lock */
509 uint64_t version
; /* Current version of the metadata */
512 void lttng_lock_sessions(void);
513 void lttng_unlock_sessions(void);
515 struct list_head
*lttng_get_probe_list_head(void);
517 struct lttng_enabler
*lttng_enabler_create(enum lttng_enabler_type type
,
518 struct lttng_kernel_event
*event_param
,
519 struct lttng_channel
*chan
);
521 int lttng_enabler_enable(struct lttng_enabler
*enabler
);
522 int lttng_enabler_disable(struct lttng_enabler
*enabler
);
523 int lttng_fix_pending_events(void);
524 int lttng_session_active(void);
526 struct lttng_session
*lttng_session_create(void);
527 int lttng_session_enable(struct lttng_session
*session
);
528 int lttng_session_disable(struct lttng_session
*session
);
529 void lttng_session_destroy(struct lttng_session
*session
);
530 int lttng_session_metadata_regenerate(struct lttng_session
*session
);
531 void metadata_cache_destroy(struct kref
*kref
);
533 struct lttng_channel
*lttng_channel_create(struct lttng_session
*session
,
534 const char *transport_name
,
536 size_t subbuf_size
, size_t num_subbuf
,
537 unsigned int switch_timer_interval
,
538 unsigned int read_timer_interval
,
539 enum channel_type channel_type
);
540 struct lttng_channel
*lttng_global_channel_create(struct lttng_session
*session
,
541 int overwrite
, void *buf_addr
,
542 size_t subbuf_size
, size_t num_subbuf
,
543 unsigned int switch_timer_interval
,
544 unsigned int read_timer_interval
);
546 void lttng_metadata_channel_destroy(struct lttng_channel
*chan
);
547 struct lttng_event
*lttng_event_create(struct lttng_channel
*chan
,
548 struct lttng_kernel_event
*event_param
,
550 const struct lttng_event_desc
*event_desc
,
551 enum lttng_kernel_instrumentation itype
);
552 struct lttng_event
*_lttng_event_create(struct lttng_channel
*chan
,
553 struct lttng_kernel_event
*event_param
,
555 const struct lttng_event_desc
*event_desc
,
556 enum lttng_kernel_instrumentation itype
);
557 struct lttng_event
*lttng_event_compat_old_create(struct lttng_channel
*chan
,
558 struct lttng_kernel_old_event
*old_event_param
,
560 const struct lttng_event_desc
*internal_desc
);
562 int lttng_channel_enable(struct lttng_channel
*channel
);
563 int lttng_channel_disable(struct lttng_channel
*channel
);
564 int lttng_event_enable(struct lttng_event
*event
);
565 int lttng_event_disable(struct lttng_event
*event
);
567 void lttng_transport_register(struct lttng_transport
*transport
);
568 void lttng_transport_unregister(struct lttng_transport
*transport
);
570 void synchronize_trace(void);
571 int lttng_abi_init(void);
572 int lttng_abi_compat_old_init(void);
573 void lttng_abi_exit(void);
574 void lttng_abi_compat_old_exit(void);
576 int lttng_probe_register(struct lttng_probe_desc
*desc
);
577 void lttng_probe_unregister(struct lttng_probe_desc
*desc
);
578 const struct lttng_event_desc
*lttng_event_get(const char *name
);
579 void lttng_event_put(const struct lttng_event_desc
*desc
);
580 int lttng_probes_init(void);
581 void lttng_probes_exit(void);
583 int lttng_metadata_output_channel(struct lttng_metadata_stream
*stream
,
584 struct channel
*chan
);
586 int lttng_pid_tracker_get_node_pid(const struct lttng_pid_hash_node
*node
);
587 struct lttng_pid_tracker
*lttng_pid_tracker_create(void);
588 void lttng_pid_tracker_destroy(struct lttng_pid_tracker
*lpf
);
589 bool lttng_pid_tracker_lookup(struct lttng_pid_tracker
*lpf
, int pid
);
590 int lttng_pid_tracker_add(struct lttng_pid_tracker
*lpf
, int pid
);
591 int lttng_pid_tracker_del(struct lttng_pid_tracker
*lpf
, int pid
);
593 int lttng_session_track_pid(struct lttng_session
*session
, int pid
);
594 int lttng_session_untrack_pid(struct lttng_session
*session
, int pid
);
596 int lttng_session_list_tracker_pids(struct lttng_session
*session
);
598 void lttng_clock_ref(void);
599 void lttng_clock_unref(void);
601 #if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)
602 int lttng_syscalls_register(struct lttng_channel
*chan
, void *filter
);
603 int lttng_syscalls_unregister(struct lttng_channel
*chan
);
604 int lttng_syscall_filter_enable(struct lttng_channel
*chan
,
606 int lttng_syscall_filter_disable(struct lttng_channel
*chan
,
608 long lttng_channel_syscall_mask(struct lttng_channel
*channel
,
609 struct lttng_kernel_syscall_mask __user
*usyscall_mask
);
611 static inline int lttng_syscalls_register(struct lttng_channel
*chan
, void *filter
)
616 static inline int lttng_syscalls_unregister(struct lttng_channel
*chan
)
621 static inline int lttng_syscall_filter_enable(struct lttng_channel
*chan
,
627 static inline int lttng_syscall_filter_disable(struct lttng_channel
*chan
,
633 static inline long lttng_channel_syscall_mask(struct lttng_channel
*channel
,
634 struct lttng_kernel_syscall_mask __user
*usyscall_mask
)
640 void lttng_filter_sync_state(struct lttng_bytecode_runtime
*runtime
);
641 int lttng_enabler_attach_bytecode(struct lttng_enabler
*enabler
,
642 struct lttng_kernel_filter_bytecode __user
*bytecode
);
643 void lttng_enabler_event_link_bytecode(struct lttng_event
*event
,
644 struct lttng_enabler
*enabler
);
646 int lttng_probes_init(void);
648 extern struct lttng_ctx
*lttng_static_ctx
;
650 int lttng_context_init(void);
651 void lttng_context_exit(void);
652 struct lttng_ctx_field
*lttng_append_context(struct lttng_ctx
**ctx
);
653 void lttng_context_update(struct lttng_ctx
*ctx
);
654 int lttng_find_context(struct lttng_ctx
*ctx
, const char *name
);
655 int lttng_get_context_index(struct lttng_ctx
*ctx
, const char *name
);
656 void lttng_remove_context_field(struct lttng_ctx
**ctx
,
657 struct lttng_ctx_field
*field
);
658 void lttng_destroy_context(struct lttng_ctx
*ctx
);
659 int lttng_add_pid_to_ctx(struct lttng_ctx
**ctx
);
660 int lttng_add_cpu_id_to_ctx(struct lttng_ctx
**ctx
);
661 int lttng_add_procname_to_ctx(struct lttng_ctx
**ctx
);
662 int lttng_add_prio_to_ctx(struct lttng_ctx
**ctx
);
663 int lttng_add_nice_to_ctx(struct lttng_ctx
**ctx
);
664 int lttng_add_vpid_to_ctx(struct lttng_ctx
**ctx
);
665 int lttng_add_tid_to_ctx(struct lttng_ctx
**ctx
);
666 int lttng_add_vtid_to_ctx(struct lttng_ctx
**ctx
);
667 int lttng_add_ppid_to_ctx(struct lttng_ctx
**ctx
);
668 int lttng_add_vppid_to_ctx(struct lttng_ctx
**ctx
);
669 int lttng_add_hostname_to_ctx(struct lttng_ctx
**ctx
);
670 int lttng_add_interruptible_to_ctx(struct lttng_ctx
**ctx
);
671 int lttng_add_need_reschedule_to_ctx(struct lttng_ctx
**ctx
);
672 #if defined(CONFIG_PREEMPT_RT_FULL) || defined(CONFIG_PREEMPT)
673 int lttng_add_preemptible_to_ctx(struct lttng_ctx
**ctx
);
676 int lttng_add_preemptible_to_ctx(struct lttng_ctx
**ctx
)
681 #ifdef CONFIG_PREEMPT_RT_FULL
682 int lttng_add_migratable_to_ctx(struct lttng_ctx
**ctx
);
685 int lttng_add_migratable_to_ctx(struct lttng_ctx
**ctx
)
690 #if defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
691 int lttng_add_perf_counter_to_ctx(uint32_t type
,
694 struct lttng_ctx
**ctx
);
697 int lttng_add_perf_counter_to_ctx(uint32_t type
,
700 struct lttng_ctx
**ctx
)
706 int lttng_logger_init(void);
707 void lttng_logger_exit(void);
709 extern int lttng_statedump_start(struct lttng_session
*session
);
711 #ifdef CONFIG_KPROBES
712 int lttng_kprobes_register(const char *name
,
713 const char *symbol_name
,
716 struct lttng_event
*event
);
717 void lttng_kprobes_unregister(struct lttng_event
*event
);
718 void lttng_kprobes_destroy_private(struct lttng_event
*event
);
721 int lttng_kprobes_register(const char *name
,
722 const char *symbol_name
,
725 struct lttng_event
*event
)
731 void lttng_kprobes_unregister(struct lttng_event
*event
)
736 void lttng_kprobes_destroy_private(struct lttng_event
*event
)
741 #ifdef CONFIG_KRETPROBES
742 int lttng_kretprobes_register(const char *name
,
743 const char *symbol_name
,
746 struct lttng_event
*event_entry
,
747 struct lttng_event
*event_exit
);
748 void lttng_kretprobes_unregister(struct lttng_event
*event
);
749 void lttng_kretprobes_destroy_private(struct lttng_event
*event
);
750 int lttng_kretprobes_event_enable_state(struct lttng_event
*event
,
754 int lttng_kretprobes_register(const char *name
,
755 const char *symbol_name
,
758 struct lttng_event
*event_entry
,
759 struct lttng_event
*event_exit
)
765 void lttng_kretprobes_unregister(struct lttng_event
*event
)
770 void lttng_kretprobes_destroy_private(struct lttng_event
*event
)
775 int lttng_kretprobes_event_enable_state(struct lttng_event
*event
,
782 #ifdef CONFIG_DYNAMIC_FTRACE
783 int lttng_ftrace_register(const char *name
,
784 const char *symbol_name
,
785 struct lttng_event
*event
);
786 void lttng_ftrace_unregister(struct lttng_event
*event
);
787 void lttng_ftrace_destroy_private(struct lttng_event
*event
);
790 int lttng_ftrace_register(const char *name
,
791 const char *symbol_name
,
792 struct lttng_event
*event
)
798 void lttng_ftrace_unregister(struct lttng_event
*event
)
803 void lttng_ftrace_destroy_private(struct lttng_event
*event
)
808 int lttng_calibrate(struct lttng_kernel_calibrate
*calibrate
);
810 extern const struct file_operations lttng_tracepoint_list_fops
;
811 extern const struct file_operations lttng_syscall_list_fops
;
813 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
814 #define TRACEPOINT_HAS_DATA_ARG
817 #endif /* _LTTNG_EVENTS_H */