[lttng-modules.git] / include / lttng / abi.h

/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
 *
 * lttng/abi.h
 *
 * LTTng ABI header
 *
 * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 */

#ifndef _LTTNG_ABI_H
#define _LTTNG_ABI_H

#include <linux/fs.h>
#include <linux/types.h>

/*
 * Major/minor version of ABI exposed to lttng tools. Major number
 * should be increased when an incompatible ABI change is done.
 */
#define LTTNG_MODULES_ABI_MAJOR_VERSION		2
#define LTTNG_MODULES_ABI_MINOR_VERSION		6

#define LTTNG_KERNEL_SYM_NAME_LEN	256
#define LTTNG_KERNEL_SESSION_NAME_LEN	256
#define LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN	26

enum lttng_kernel_instrumentation {
	LTTNG_KERNEL_TRACEPOINT	= 0,
	LTTNG_KERNEL_KPROBE	= 1,
	LTTNG_KERNEL_FUNCTION	= 2,
	LTTNG_KERNEL_KRETPROBE	= 3,
	LTTNG_KERNEL_NOOP	= 4,	/* not hooked */
	LTTNG_KERNEL_SYSCALL	= 5,
	LTTNG_KERNEL_UPROBE	= 6,
};

/*
 * LTTng consumer mode
 */
enum lttng_kernel_output {
	LTTNG_KERNEL_SPLICE	= 0,
	LTTNG_KERNEL_MMAP	= 1,
};

/*
 * LTTng DebugFS ABI structures.
 */
#define LTTNG_KERNEL_CHANNEL_PADDING	LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_channel {
	uint64_t subbuf_size;			/* in bytes */
	uint64_t num_subbuf;
	unsigned int switch_timer_interval;	/* usecs */
	unsigned int read_timer_interval;	/* usecs */
	uint32_t output;			/* enum lttng_kernel_output (splice, mmap) */
	int overwrite;				/* 1: overwrite, 0: discard */
	char padding[LTTNG_KERNEL_CHANNEL_PADDING];
} __attribute__((packed));

enum lttng_kernel_kretprobe_entryexit {
	LTTNG_KERNEL_KRETPROBE_ENTRYEXIT = 0,
	LTTNG_KERNEL_KRETPROBE_ENTRY = 1,
	LTTNG_KERNEL_KRETPROBE_EXIT = 2,
};

struct lttng_kernel_kretprobe {
	uint64_t addr;

	uint64_t offset;
	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
	uint8_t entryexit;	/* enum lttng_kernel_kretprobe_entryexit */
} __attribute__((packed));

/*
 * Either addr is used, or symbol_name and offset.
 */
struct lttng_kernel_kprobe {
	uint64_t addr;

	uint64_t offset;
	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
} __attribute__((packed));

struct lttng_kernel_function_tracer {
	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
} __attribute__((packed));

struct lttng_kernel_uprobe {
	int fd;
} __attribute__((packed));

struct lttng_kernel_event_callsite_uprobe {
	uint64_t offset;
} __attribute__((packed));

struct lttng_kernel_event_callsite {
	union {
		struct lttng_kernel_event_callsite_uprobe uprobe;
	} u;
} __attribute__((packed));

enum lttng_kernel_syscall_entryexit {
	LTTNG_KERNEL_SYSCALL_ENTRYEXIT	= 0,
	LTTNG_KERNEL_SYSCALL_ENTRY	= 1,
	LTTNG_KERNEL_SYSCALL_EXIT	= 2,
};

enum lttng_kernel_syscall_abi {
	LTTNG_KERNEL_SYSCALL_ABI_ALL = 0,
	LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1,
	LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2,
};

enum lttng_kernel_syscall_match {
	LTTNG_KERNEL_SYSCALL_MATCH_NAME = 0,
	LTTNG_KERNEL_SYSCALL_MATCH_NR = 1,		/* Not implemented. */
};

struct lttng_kernel_syscall {
	uint8_t entryexit;	/* enum lttng_kernel_syscall_entryexit */
	uint8_t abi;		/* enum lttng_kernel_syscall_abi */
	uint8_t match;		/* enum lttng_kernel_syscall_match */
	uint8_t padding;
	uint32_t nr;		/* For LTTNG_SYSCALL_MATCH_NR */
} __attribute__((packed));

/*
 * For syscall tracing, name = "*" means "enable all".
 */
#define LTTNG_KERNEL_EVENT_PADDING1	8
#define LTTNG_KERNEL_EVENT_PADDING2	LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_event {
	char name[LTTNG_KERNEL_SYM_NAME_LEN];	/* event name */
	uint32_t instrumentation;		/* enum lttng_kernel_instrumentation */
	uint64_t token;				/* User-provided token */
	char padding[LTTNG_KERNEL_EVENT_PADDING1];

	/* Per instrumentation type configuration */
	union {
		struct lttng_kernel_kretprobe kretprobe;
		struct lttng_kernel_kprobe kprobe;
		struct lttng_kernel_function_tracer ftrace;
		struct lttng_kernel_uprobe uprobe;
		struct lttng_kernel_syscall syscall;
		char padding[LTTNG_KERNEL_EVENT_PADDING2];
	} u;
} __attribute__((packed));

#define LTTNG_KERNEL_EVENT_NOTIFIER_PADDING	32
struct lttng_kernel_event_notifier {
	struct lttng_kernel_event event;
	uint64_t error_counter_index;

	char padding[LTTNG_KERNEL_EVENT_NOTIFIER_PADDING];
} __attribute__((packed));

#define LTTNG_KERNEL_COUNTER_DIMENSION_MAX	4

enum lttng_kernel_counter_arithmetic {
	LTTNG_KERNEL_COUNTER_ARITHMETIC_MODULAR = 0,
};

enum lttng_kernel_counter_bitness {
	LTTNG_KERNEL_COUNTER_BITNESS_32 = 0,
	LTTNG_KERNEL_COUNTER_BITNESS_64 = 1,
};

struct lttng_kernel_counter_dimension {
	uint64_t size;
	uint64_t underflow_index;
	uint64_t overflow_index;
	uint8_t has_underflow;
	uint8_t has_overflow;
} __attribute__((packed));

#define LTTNG_KERNEL_COUNTER_CONF_PADDING1	67
struct lttng_kernel_counter_conf {
	uint32_t arithmetic;	/* enum lttng_kernel_counter_arithmetic */
	uint32_t bitness;	/* enum lttng_kernel_counter_bitness */
	uint32_t number_dimensions;
	int64_t global_sum_step;
	struct lttng_kernel_counter_dimension dimensions[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
	uint8_t coalesce_hits;
	char padding[LTTNG_KERNEL_COUNTER_CONF_PADDING1];
} __attribute__((packed));

struct lttng_kernel_counter_index {
	uint32_t number_dimensions;
	uint64_t dimension_indexes[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
} __attribute__((packed));

struct lttng_kernel_counter_value {
	int64_t value;
	uint8_t underflow;
	uint8_t overflow;
} __attribute__((packed));

#define LTTNG_KERNEL_COUNTER_READ_PADDING 32
struct lttng_kernel_counter_read {
	struct lttng_kernel_counter_index index;
	int32_t cpu;	/* -1 for global counter, >= 0 for specific cpu. */
	struct lttng_kernel_counter_value value;	/* output */
	char padding[LTTNG_KERNEL_COUNTER_READ_PADDING];
} __attribute__((packed));

#define LTTNG_KERNEL_COUNTER_AGGREGATE_PADDING 32
struct lttng_kernel_counter_aggregate {
	struct lttng_kernel_counter_index index;
	struct lttng_kernel_counter_value value;	/* output */
	char padding[LTTNG_KERNEL_COUNTER_AGGREGATE_PADDING];
} __attribute__((packed));

#define LTTNG_KERNEL_COUNTER_CLEAR_PADDING 32
struct lttng_kernel_counter_clear {
	struct lttng_kernel_counter_index index;
	char padding[LTTNG_KERNEL_COUNTER_CLEAR_PADDING];
} __attribute__((packed));

#define LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING 32
struct lttng_kernel_event_notifier_notification {
	uint64_t token;
	uint16_t capture_buf_size;
	char padding[LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING];
} __attribute__((packed));

struct lttng_kernel_tracer_version {
	uint32_t major;
	uint32_t minor;
	uint32_t patchlevel;
} __attribute__((packed));

struct lttng_kernel_tracer_abi_version {
	uint32_t major;
	uint32_t minor;
} __attribute__((packed));

struct lttng_kernel_session_name {
	char name[LTTNG_KERNEL_SESSION_NAME_LEN];
} __attribute__((packed));

struct lttng_kernel_session_creation_time {
	char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN];
} __attribute__((packed));

enum lttng_kernel_calibrate_type {
	LTTNG_KERNEL_CALIBRATE_KRETPROBE,
};

struct lttng_kernel_calibrate {
	uint32_t type;	/* enum lttng_kernel_calibrate_type (input) */
} __attribute__((packed));

struct lttng_kernel_syscall_mask {
	uint32_t len;	/* in bits */
	char mask[];
} __attribute__((packed));

enum lttng_kernel_context_type {
	LTTNG_KERNEL_CONTEXT_PID		= 0,
	LTTNG_KERNEL_CONTEXT_PERF_COUNTER	= 1,
	LTTNG_KERNEL_CONTEXT_PROCNAME		= 2,
	LTTNG_KERNEL_CONTEXT_PRIO		= 3,
	LTTNG_KERNEL_CONTEXT_NICE		= 4,
	LTTNG_KERNEL_CONTEXT_VPID		= 5,
	LTTNG_KERNEL_CONTEXT_TID		= 6,
	LTTNG_KERNEL_CONTEXT_VTID		= 7,
	LTTNG_KERNEL_CONTEXT_PPID		= 8,
	LTTNG_KERNEL_CONTEXT_VPPID		= 9,
	LTTNG_KERNEL_CONTEXT_HOSTNAME		= 10,
	LTTNG_KERNEL_CONTEXT_CPU_ID		= 11,
	LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE	= 12,
	LTTNG_KERNEL_CONTEXT_PREEMPTIBLE	= 13,
	LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE	= 14,
	LTTNG_KERNEL_CONTEXT_MIGRATABLE		= 15,
	LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL	= 16,
	LTTNG_KERNEL_CONTEXT_CALLSTACK_USER	= 17,
	LTTNG_KERNEL_CONTEXT_CGROUP_NS		= 18,
	LTTNG_KERNEL_CONTEXT_IPC_NS		= 19,
	LTTNG_KERNEL_CONTEXT_MNT_NS		= 20,
	LTTNG_KERNEL_CONTEXT_NET_NS		= 21,
	LTTNG_KERNEL_CONTEXT_PID_NS		= 22,
	LTTNG_KERNEL_CONTEXT_USER_NS		= 23,
	LTTNG_KERNEL_CONTEXT_UTS_NS		= 24,
	LTTNG_KERNEL_CONTEXT_UID		= 25,
	LTTNG_KERNEL_CONTEXT_EUID		= 26,
	LTTNG_KERNEL_CONTEXT_SUID		= 27,
	LTTNG_KERNEL_CONTEXT_GID		= 28,
	LTTNG_KERNEL_CONTEXT_EGID		= 29,
	LTTNG_KERNEL_CONTEXT_SGID		= 30,
	LTTNG_KERNEL_CONTEXT_VUID		= 31,
	LTTNG_KERNEL_CONTEXT_VEUID		= 32,
	LTTNG_KERNEL_CONTEXT_VSUID		= 33,
	LTTNG_KERNEL_CONTEXT_VGID		= 34,
	LTTNG_KERNEL_CONTEXT_VEGID		= 35,
	LTTNG_KERNEL_CONTEXT_VSGID		= 36,
	LTTNG_KERNEL_CONTEXT_TIME_NS		= 37,
};

struct lttng_kernel_perf_counter_ctx {
	uint32_t type;
	uint64_t config;
	char name[LTTNG_KERNEL_SYM_NAME_LEN];
} __attribute__((packed));

#define LTTNG_KERNEL_CONTEXT_PADDING1	16
#define LTTNG_KERNEL_CONTEXT_PADDING2	LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_context {
	uint32_t ctx;	/*enum lttng_kernel_context_type */
	char padding[LTTNG_KERNEL_CONTEXT_PADDING1];

	union {
		struct lttng_kernel_perf_counter_ctx perf_counter;
		char padding[LTTNG_KERNEL_CONTEXT_PADDING2];
	} u;
} __attribute__((packed));

#define LTTNG_KERNEL_FILTER_BYTECODE_MAX_LEN		65536
struct lttng_kernel_filter_bytecode {
	uint32_t len;
	uint32_t reloc_offset;
	uint64_t seqnum;
	char data[0];
} __attribute__((packed));

#define LTTNG_KERNEL_CAPTURE_BYTECODE_MAX_LEN		65536
struct lttng_kernel_capture_bytecode {
	uint32_t len;
	uint32_t reloc_offset;
	uint64_t seqnum;
	char data[0];
} __attribute__((packed));

enum lttng_kernel_tracker_type {
	LTTNG_KERNEL_TRACKER_UNKNOWN		= -1,

	LTTNG_KERNEL_TRACKER_PID		= 0,
	LTTNG_KERNEL_TRACKER_VPID		= 1,
	LTTNG_KERNEL_TRACKER_UID		= 2,
	LTTNG_KERNEL_TRACKER_VUID		= 3,
	LTTNG_KERNEL_TRACKER_GID		= 4,
	LTTNG_KERNEL_TRACKER_VGID		= 5,
};

struct lttng_kernel_tracker_args {
	uint32_t type;	/* enum lttng_kernel_tracker_type */
	int32_t id;
};

/* LTTng file descriptor ioctl */
/* lttng/abi-old.h reserve 0x40, 0x41, 0x42, 0x43, and 0x44. */
#define LTTNG_KERNEL_SESSION			_IO(0xF6, 0x45)
#define LTTNG_KERNEL_TRACER_VERSION		\
	_IOR(0xF6, 0x46, struct lttng_kernel_tracer_version)
#define LTTNG_KERNEL_TRACEPOINT_LIST		_IO(0xF6, 0x47)
#define LTTNG_KERNEL_WAIT_QUIESCENT		_IO(0xF6, 0x48)
#define LTTNG_KERNEL_CALIBRATE			\
	_IOWR(0xF6, 0x49, struct lttng_kernel_calibrate)
#define LTTNG_KERNEL_SYSCALL_LIST		_IO(0xF6, 0x4A)
#define LTTNG_KERNEL_TRACER_ABI_VERSION		\
	_IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version)
#define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_CREATE    _IO(0xF6, 0x4C)

/* Session FD ioctl */
/* lttng/abi-old.h reserve 0x50, 0x51, 0x52, and 0x53. */
#define LTTNG_KERNEL_METADATA			\
	_IOW(0xF6, 0x54, struct lttng_kernel_channel)
#define LTTNG_KERNEL_CHANNEL			\
	_IOW(0xF6, 0x55, struct lttng_kernel_channel)
#define LTTNG_KERNEL_SESSION_START		_IO(0xF6, 0x56)
#define LTTNG_KERNEL_SESSION_STOP		_IO(0xF6, 0x57)
#define LTTNG_KERNEL_SESSION_TRACK_PID		\
	_IOR(0xF6, 0x58, int32_t)
#define LTTNG_KERNEL_SESSION_UNTRACK_PID	\
	_IOR(0xF6, 0x59, int32_t)

/*
 * ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO
 * are generating two different ioctl numbers, but this was not done on
 * purpose. We should generally try to avoid those duplications.
 */
#define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS	_IO(0xF6, 0x58)
#define LTTNG_KERNEL_SESSION_METADATA_REGEN	_IO(0xF6, 0x59)

/* lttng/abi-old.h reserve 0x5A and 0x5B. */
#define LTTNG_KERNEL_SESSION_STATEDUMP		_IO(0xF6, 0x5C)
#define LTTNG_KERNEL_SESSION_SET_NAME		\
	_IOR(0xF6, 0x5D, struct lttng_kernel_session_name)
#define LTTNG_KERNEL_SESSION_SET_CREATION_TIME		\
	_IOR(0xF6, 0x5E, struct lttng_kernel_session_creation_time)

/* Channel FD ioctl */
/* lttng/abi-old.h reserve 0x60 and 0x61. */
#define LTTNG_KERNEL_STREAM			_IO(0xF6, 0x62)
#define LTTNG_KERNEL_EVENT			\
	_IOW(0xF6, 0x63, struct lttng_kernel_event)
#define LTTNG_KERNEL_SYSCALL_MASK		\
	_IOWR(0xF6, 0x64, struct lttng_kernel_syscall_mask)

/* Event and Channel FD ioctl */
/* lttng/abi-old.h reserve 0x70. */
#define LTTNG_KERNEL_CONTEXT			\
	_IOW(0xF6, 0x71, struct lttng_kernel_context)

/* Event, Event notifier, Channel, Counter and Session ioctl */
/* lttng/abi-old.h reserve 0x80 and 0x81. */
#define LTTNG_KERNEL_ENABLE			_IO(0xF6, 0x82)
#define LTTNG_KERNEL_DISABLE			_IO(0xF6, 0x83)

/* Trigger group and session ioctl */
#define LTTNG_KERNEL_COUNTER \
	_IOW(0xF6, 0x84, struct lttng_kernel_counter_conf)

/* Event and Event notifier FD ioctl */
#define LTTNG_KERNEL_FILTER			_IO(0xF6, 0x90)
#define LTTNG_KERNEL_ADD_CALLSITE		_IO(0xF6, 0x91)

/* Session FD ioctl (continued) */
#define LTTNG_KERNEL_SESSION_LIST_TRACKER_IDS	\
	_IOR(0xF6, 0xA0, struct lttng_kernel_tracker_args)
#define LTTNG_KERNEL_SESSION_TRACK_ID		\
	_IOR(0xF6, 0xA1, struct lttng_kernel_tracker_args)
#define LTTNG_KERNEL_SESSION_UNTRACK_ID		\
	_IOR(0xF6, 0xA2, struct lttng_kernel_tracker_args)

/* Event notifier group file descriptor ioctl */
#define LTTNG_KERNEL_EVENT_NOTIFIER_CREATE \
	_IOW(0xF6, 0xB0, struct lttng_kernel_event_notifier)
#define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_NOTIFICATION_FD \
	_IO(0xF6, 0xB1)

/* Event notifier file descriptor ioctl */
#define LTTNG_KERNEL_CAPTURE			_IO(0xF6, 0xB8)

/* Counter file descriptor ioctl */
#define LTTNG_KERNEL_COUNTER_READ \
	_IOWR(0xF6, 0xC0, struct lttng_kernel_counter_read)
#define LTTNG_KERNEL_COUNTER_AGGREGATE \
	_IOWR(0xF6, 0xC1, struct lttng_kernel_counter_aggregate)
#define LTTNG_KERNEL_COUNTER_CLEAR \
	_IOW(0xF6, 0xC2, struct lttng_kernel_counter_clear)


/*
 * LTTng-specific ioctls for the lib ringbuffer.
 *
 * Operations applying to the current sub-buffer need to occur between
 * a get/put or get_next/put_next ioctl pair.
 */

/* returns the timestamp begin of the current sub-buffer */
#define LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN	_IOR(0xF6, 0x20, uint64_t)
/* returns the timestamp end of the current sub-buffer */
#define LTTNG_RING_BUFFER_GET_TIMESTAMP_END	_IOR(0xF6, 0x21, uint64_t)
/* returns the number of events discarded of the current sub-buffer */
#define LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED	_IOR(0xF6, 0x22, uint64_t)
/* returns the packet payload size of the current sub-buffer */
#define LTTNG_RING_BUFFER_GET_CONTENT_SIZE	_IOR(0xF6, 0x23, uint64_t)
/* returns the packet size of the current sub-buffer*/
#define LTTNG_RING_BUFFER_GET_PACKET_SIZE	_IOR(0xF6, 0x24, uint64_t)
/* returns the stream id (invariant for the stream) */
#define LTTNG_RING_BUFFER_GET_STREAM_ID		_IOR(0xF6, 0x25, uint64_t)
/* returns the current timestamp as perceived from the tracer */
#define LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP	_IOR(0xF6, 0x26, uint64_t)
/* returns the packet sequence number of the current sub-buffer */
#define LTTNG_RING_BUFFER_GET_SEQ_NUM		_IOR(0xF6, 0x27, uint64_t)
/* returns the stream instance id (invariant for the stream) */
#define LTTNG_RING_BUFFER_INSTANCE_ID		_IOR(0xF6, 0x28, uint64_t)

#ifdef CONFIG_COMPAT
/* returns the timestamp begin of the current sub-buffer */
#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_BEGIN \
	LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN
/* returns the timestamp end of the current sub-buffer */
#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_END \
	LTTNG_RING_BUFFER_GET_TIMESTAMP_END
/* returns the number of events discarded of the current sub-buffer */
#define LTTNG_RING_BUFFER_COMPAT_GET_EVENTS_DISCARDED \
	LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED
/* returns the packet payload size of the current sub-buffer */
#define LTTNG_RING_BUFFER_COMPAT_GET_CONTENT_SIZE \
	LTTNG_RING_BUFFER_GET_CONTENT_SIZE
/* returns the packet size of the current sub-buffer */
#define LTTNG_RING_BUFFER_COMPAT_GET_PACKET_SIZE \
	LTTNG_RING_BUFFER_GET_PACKET_SIZE
/* returns the stream id (invariant for the stream) */
#define LTTNG_RING_BUFFER_COMPAT_GET_STREAM_ID \
	LTTNG_RING_BUFFER_GET_STREAM_ID
/* returns the current timestamp as perceived from the tracer */
#define LTTNG_RING_BUFFER_COMPAT_GET_CURRENT_TIMESTAMP \
	LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP
/* returns the packet sequence number of the current sub-buffer */
#define LTTNG_RING_BUFFER_COMPAT_GET_SEQ_NUM	\
	LTTNG_RING_BUFFER_GET_SEQ_NUM
/* returns the stream instance id (invariant for the stream) */
#define LTTNG_RING_BUFFER_COMPAT_INSTANCE_ID	\
	LTTNG_RING_BUFFER_INSTANCE_ID
#endif /* CONFIG_COMPAT */

#endif /* _LTTNG_ABI_H */
Commit	Line	Data
b7cdc182	1	/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
9f36eaed	2	*
2df37e95	3	* lttng/abi.h
57a13317	4	*
80996790	5	* LTTng ABI header
17baffe2	6	*
886d51a3	7	* Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
57a13317 MD	8	*/
57a13317 MD	9
9f36eaed MJ	10	#ifndef _LTTNG_ABI_H
	11	#define _LTTNG_ABI_H
	12
57a13317	13	#include <linux/fs.h>
99f52fcc	14	#include <linux/types.h>
57a13317	15
42cabb80 MD	16	/*
	17	* Major/minor version of ABI exposed to lttng tools. Major number
	18	* should be increased when an incompatible ABI change is done.
	19	*/
3c997079	20	#define LTTNG_MODULES_ABI_MAJOR_VERSION 2
6b4a3b2d	21	#define LTTNG_MODULES_ABI_MINOR_VERSION 6
42cabb80	22
f8695253	23	#define LTTNG_KERNEL_SYM_NAME_LEN 256
7f859fbf	24	#define LTTNG_KERNEL_SESSION_NAME_LEN 256
1c88f269	25	#define LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN 26
d6d808f3	26
38d024ae	27	enum lttng_kernel_instrumentation {
4c183524 MD	28	LTTNG_KERNEL_TRACEPOINT = 0,
	29	LTTNG_KERNEL_KPROBE = 1,
	30	LTTNG_KERNEL_FUNCTION = 2,
7371f44c	31	LTTNG_KERNEL_KRETPROBE = 3,
1ec65de1	32	LTTNG_KERNEL_NOOP = 4, /* not hooked */
43880ee8	33	LTTNG_KERNEL_SYSCALL = 5,
149b9a9d	34	LTTNG_KERNEL_UPROBE = 6,
57a13317 MD	35	};
57a13317 MD	36
96ba7208 JD	37	/*
	38	* LTTng consumer mode
	39	*/
	40	enum lttng_kernel_output {
	41	LTTNG_KERNEL_SPLICE = 0,
	42	LTTNG_KERNEL_MMAP = 1,
	43	};
	44
57a13317 MD	45	/*
	46	* LTTng DebugFS ABI structures.
	47	*/
8e099bae	48	#define LTTNG_KERNEL_CHANNEL_PADDING LTTNG_KERNEL_SYM_NAME_LEN + 32
38d024ae	49	struct lttng_kernel_channel {
9e245ead	50	uint64_t subbuf_size; /* in bytes */
80c16bcf	51	uint64_t num_subbuf;
9e245ead MD	52	unsigned int switch_timer_interval; /* usecs */
9e245ead MD	53	unsigned int read_timer_interval; /* usecs */
b6c846f1	54	uint32_t output; /* enum lttng_kernel_output (splice, mmap) */
6dccd6c1	55	int overwrite; /* 1: overwrite, 0: discard */
8e099bae	56	char padding[LTTNG_KERNEL_CHANNEL_PADDING];
1a598612	57	} __attribute__((packed));
57a13317	58
88a82b17 MD	59	enum lttng_kernel_kretprobe_entryexit {
	60	LTTNG_KERNEL_KRETPROBE_ENTRYEXIT = 0,
	61	LTTNG_KERNEL_KRETPROBE_ENTRY = 1,
	62	LTTNG_KERNEL_KRETPROBE_EXIT = 2,
	63	};
	64
7371f44c MD	65	struct lttng_kernel_kretprobe {
	66	uint64_t addr;
	67
	68	uint64_t offset;
f8695253	69	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
88a82b17	70	uint8_t entryexit; /* enum lttng_kernel_kretprobe_entryexit */
1a598612	71	} __attribute__((packed));
7371f44c	72
38d024ae MD	73	/*
	74	* Either addr is used, or symbol_name and offset.
	75	*/
	76	struct lttng_kernel_kprobe {
80c16bcf	77	uint64_t addr;
38d024ae	78
80c16bcf	79	uint64_t offset;
f8695253	80	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	81	} __attribute__((packed));
d6d808f3	82
f17701fb	83	struct lttng_kernel_function_tracer {
f8695253	84	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	85	} __attribute__((packed));
f17701fb	86
149b9a9d	87	struct lttng_kernel_uprobe {
56377c91	88	int fd;
3aed4dca FD	89	} __attribute__((packed));
	90
	91	struct lttng_kernel_event_callsite_uprobe {
149b9a9d YB	92	uint64_t offset;
	93	} __attribute__((packed));
	94
3aed4dca FD	95	struct lttng_kernel_event_callsite {
	96	union {
	97	struct lttng_kernel_event_callsite_uprobe uprobe;
	98	} u;
	99	} __attribute__((packed));
	100
badfe9f5	101	enum lttng_kernel_syscall_entryexit {
c5d12b5b FD	102	LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0,
	103	LTTNG_KERNEL_SYSCALL_ENTRY = 1,
	104	LTTNG_KERNEL_SYSCALL_EXIT = 2,
badfe9f5 MD	105	};
	106
	107	enum lttng_kernel_syscall_abi {
	108	LTTNG_KERNEL_SYSCALL_ABI_ALL = 0,
8a8ac9a8 FD	109	LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1,
8a8ac9a8 FD	110	LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2,
badfe9f5 MD	111	};
	112
	113	enum lttng_kernel_syscall_match {
cff6938b FD	114	LTTNG_KERNEL_SYSCALL_MATCH_NAME = 0,
cff6938b FD	115	LTTNG_KERNEL_SYSCALL_MATCH_NR = 1, /* Not implemented. */
badfe9f5 MD	116	};
	117
	118	struct lttng_kernel_syscall {
	119	uint8_t entryexit; /* enum lttng_kernel_syscall_entryexit */
	120	uint8_t abi; /* enum lttng_kernel_syscall_abi */
	121	uint8_t match; /* enum lttng_kernel_syscall_match */
	122	uint8_t padding;
	123	uint32_t nr; /* For LTTNG_SYSCALL_MATCH_NR */
	124	} __attribute__((packed));
	125
43880ee8	126	/*
3c997079	127	* For syscall tracing, name = "*" means "enable all".
43880ee8	128	*/
d4f52727	129	#define LTTNG_KERNEL_EVENT_PADDING1 8
8e099bae	130	#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
d6d808f3	131	struct lttng_kernel_event {
f8695253	132	char name[LTTNG_KERNEL_SYM_NAME_LEN]; /* event name */
b6c846f1	133	uint32_t instrumentation; /* enum lttng_kernel_instrumentation */
d4f52727	134	uint64_t token; /* User-provided token */
8e099bae MD	135	char padding[LTTNG_KERNEL_EVENT_PADDING1];
8e099bae MD	136
d6d808f3 MD	137	/* Per instrumentation type configuration */
d6d808f3 MD	138	union {
7371f44c	139	struct lttng_kernel_kretprobe kretprobe;
d6d808f3	140	struct lttng_kernel_kprobe kprobe;
f17701fb	141	struct lttng_kernel_function_tracer ftrace;
149b9a9d	142	struct lttng_kernel_uprobe uprobe;
badfe9f5	143	struct lttng_kernel_syscall syscall;
8e099bae	144	char padding[LTTNG_KERNEL_EVENT_PADDING2];
d6d808f3	145	} u;
1a598612	146	} __attribute__((packed));
c099397a	147
2af7b13b	148	#define LTTNG_KERNEL_EVENT_NOTIFIER_PADDING 32
dffef45d FD	149	struct lttng_kernel_event_notifier {
dffef45d FD	150	struct lttng_kernel_event event;
99f52fcc	151	uint64_t error_counter_index;
dffef45d	152
2af7b13b	153	char padding[LTTNG_KERNEL_EVENT_NOTIFIER_PADDING];
dffef45d FD	154	} __attribute__((packed));
dffef45d FD	155
dd1ee958 MD	156	#define LTTNG_KERNEL_COUNTER_DIMENSION_MAX 4
dd1ee958 MD	157
99f52fcc	158	enum lttng_kernel_counter_arithmetic {
8545187a	159	LTTNG_KERNEL_COUNTER_ARITHMETIC_MODULAR = 0,
99f52fcc FD	160	};
	161
	162	enum lttng_kernel_counter_bitness {
8545187a MD	163	LTTNG_KERNEL_COUNTER_BITNESS_32 = 0,
8545187a MD	164	LTTNG_KERNEL_COUNTER_BITNESS_64 = 1,
99f52fcc FD	165	};
	166
	167	struct lttng_kernel_counter_dimension {
	168	uint64_t size;
	169	uint64_t underflow_index;
	170	uint64_t overflow_index;
	171	uint8_t has_underflow;
	172	uint8_t has_overflow;
	173	} __attribute__((packed));
	174
dd1ee958	175	#define LTTNG_KERNEL_COUNTER_CONF_PADDING1 67
99f52fcc FD	176	struct lttng_kernel_counter_conf {
	177	uint32_t arithmetic; /* enum lttng_kernel_counter_arithmetic */
	178	uint32_t bitness; /* enum lttng_kernel_counter_bitness */
	179	uint32_t number_dimensions;
	180	int64_t global_sum_step;
	181	struct lttng_kernel_counter_dimension dimensions[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
dd1ee958 MD	182	uint8_t coalesce_hits;
dd1ee958 MD	183	char padding[LTTNG_KERNEL_COUNTER_CONF_PADDING1];
99f52fcc FD	184	} __attribute__((packed));
	185
	186	struct lttng_kernel_counter_index {
	187	uint32_t number_dimensions;
	188	uint64_t dimension_indexes[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
	189	} __attribute__((packed));
	190
	191	struct lttng_kernel_counter_value {
	192	int64_t value;
	193	uint8_t underflow;
	194	uint8_t overflow;
	195	} __attribute__((packed));
	196
	197	#define LTTNG_KERNEL_COUNTER_READ_PADDING 32
	198	struct lttng_kernel_counter_read {
	199	struct lttng_kernel_counter_index index;
	200	int32_t cpu; /* -1 for global counter, >= 0 for specific cpu. */
	201	struct lttng_kernel_counter_value value; /* output */
	202	char padding[LTTNG_KERNEL_COUNTER_READ_PADDING];
	203	} __attribute__((packed));
	204
	205	#define LTTNG_KERNEL_COUNTER_AGGREGATE_PADDING 32
	206	struct lttng_kernel_counter_aggregate {
	207	struct lttng_kernel_counter_index index;
	208	struct lttng_kernel_counter_value value; /* output */
	209	char padding[LTTNG_KERNEL_COUNTER_AGGREGATE_PADDING];
	210	} __attribute__((packed));
	211
	212	#define LTTNG_KERNEL_COUNTER_CLEAR_PADDING 32
	213	struct lttng_kernel_counter_clear {
	214	struct lttng_kernel_counter_index index;
	215	char padding[LTTNG_KERNEL_COUNTER_CLEAR_PADDING];
	216	} __attribute__((packed));
	217
99d223ad FD	218	#define LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING 32
	219	struct lttng_kernel_event_notifier_notification {
	220	uint64_t token;
	221	uint16_t capture_buf_size;
	222	char padding[LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING];
	223	} __attribute__((packed));
	224
80c16bcf	225	struct lttng_kernel_tracer_version {
c6c9e10f MD	226	uint32_t major;
c6c9e10f MD	227	uint32_t minor;
80c16bcf	228	uint32_t patchlevel;
1a598612	229	} __attribute__((packed));
80c16bcf	230
42cabb80 MD	231	struct lttng_kernel_tracer_abi_version {
	232	uint32_t major;
	233	uint32_t minor;
	234	} __attribute__((packed));
	235
7f859fbf JR	236	struct lttng_kernel_session_name {
	237	char name[LTTNG_KERNEL_SESSION_NAME_LEN];
	238	} __attribute__((packed));
	239
1c88f269 JR	240	struct lttng_kernel_session_creation_time {
	241	char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN];
	242	} __attribute__((packed));
	243
3db41b2c MD	244	enum lttng_kernel_calibrate_type {
3db41b2c MD	245	LTTNG_KERNEL_CALIBRATE_KRETPROBE,
57105fc2 MD	246	};
57105fc2 MD	247
3db41b2c	248	struct lttng_kernel_calibrate {
b6c846f1	249	uint32_t type; /* enum lttng_kernel_calibrate_type (input) */
1a598612	250	} __attribute__((packed));
57105fc2	251
12e579db MD	252	struct lttng_kernel_syscall_mask {
	253	uint32_t len; /* in bits */
	254	char mask[];
	255	} __attribute__((packed));
	256
12a313a5	257	enum lttng_kernel_context_type {
4c183524 MD	258	LTTNG_KERNEL_CONTEXT_PID = 0,
4c183524 MD	259	LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1,
a2563e83	260	LTTNG_KERNEL_CONTEXT_PROCNAME = 2,
4c183524 MD	261	LTTNG_KERNEL_CONTEXT_PRIO = 3,
	262	LTTNG_KERNEL_CONTEXT_NICE = 4,
	263	LTTNG_KERNEL_CONTEXT_VPID = 5,
	264	LTTNG_KERNEL_CONTEXT_TID = 6,
	265	LTTNG_KERNEL_CONTEXT_VTID = 7,
	266	LTTNG_KERNEL_CONTEXT_PPID = 8,
	267	LTTNG_KERNEL_CONTEXT_VPPID = 9,
975da2c0	268	LTTNG_KERNEL_CONTEXT_HOSTNAME = 10,
b3699d90	269	LTTNG_KERNEL_CONTEXT_CPU_ID = 11,
79150a49 JD	270	LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12,
	271	LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13,
	272	LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14,
	273	LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15,
2fa2d39a FG	274	LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16,
2fa2d39a FG	275	LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17,
a6cf40a4 MJ	276	LTTNG_KERNEL_CONTEXT_CGROUP_NS = 18,
	277	LTTNG_KERNEL_CONTEXT_IPC_NS = 19,
	278	LTTNG_KERNEL_CONTEXT_MNT_NS = 20,
	279	LTTNG_KERNEL_CONTEXT_NET_NS = 21,
	280	LTTNG_KERNEL_CONTEXT_PID_NS = 22,
	281	LTTNG_KERNEL_CONTEXT_USER_NS = 23,
	282	LTTNG_KERNEL_CONTEXT_UTS_NS = 24,
dc923e75 MJ	283	LTTNG_KERNEL_CONTEXT_UID = 25,
	284	LTTNG_KERNEL_CONTEXT_EUID = 26,
	285	LTTNG_KERNEL_CONTEXT_SUID = 27,
	286	LTTNG_KERNEL_CONTEXT_GID = 28,
	287	LTTNG_KERNEL_CONTEXT_EGID = 29,
	288	LTTNG_KERNEL_CONTEXT_SGID = 30,
	289	LTTNG_KERNEL_CONTEXT_VUID = 31,
	290	LTTNG_KERNEL_CONTEXT_VEUID = 32,
	291	LTTNG_KERNEL_CONTEXT_VSUID = 33,
	292	LTTNG_KERNEL_CONTEXT_VGID = 34,
	293	LTTNG_KERNEL_CONTEXT_VEGID = 35,
	294	LTTNG_KERNEL_CONTEXT_VSGID = 36,
876e2e92	295	LTTNG_KERNEL_CONTEXT_TIME_NS = 37,
8070f5c0 MD	296	};
	297
	298	struct lttng_kernel_perf_counter_ctx {
	299	uint32_t type;
	300	uint64_t config;
f8695253	301	char name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	302	} __attribute__((packed));
8070f5c0	303
8e099bae MD	304	#define LTTNG_KERNEL_CONTEXT_PADDING1 16
8e099bae MD	305	#define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
8070f5c0	306	struct lttng_kernel_context {
b6c846f1	307	uint32_t ctx; /enum lttng_kernel_context_type /
8e099bae MD	308	char padding[LTTNG_KERNEL_CONTEXT_PADDING1];
8e099bae MD	309
8070f5c0	310	union {
8070f5c0	311	struct lttng_kernel_perf_counter_ctx perf_counter;
8e099bae	312	char padding[LTTNG_KERNEL_CONTEXT_PADDING2];
8070f5c0	313	} u;
1a598612	314	} __attribute__((packed));
8070f5c0	315
f127e61e	316	#define LTTNG_KERNEL_FILTER_BYTECODE_MAX_LEN 65536
07dfc1d0 MD	317	struct lttng_kernel_filter_bytecode {
	318	uint32_t len;
	319	uint32_t reloc_offset;
	320	uint64_t seqnum;
	321	char data[0];
	322	} __attribute__((packed));
	323
99d223ad FD	324	#define LTTNG_KERNEL_CAPTURE_BYTECODE_MAX_LEN 65536
	325	struct lttng_kernel_capture_bytecode {
	326	uint32_t len;
	327	uint32_t reloc_offset;
	328	uint64_t seqnum;
	329	char data[0];
	330	} __attribute__((packed));
	331
d1f652f8 MD	332	enum lttng_kernel_tracker_type {
	333	LTTNG_KERNEL_TRACKER_UNKNOWN = -1,
	334
	335	LTTNG_KERNEL_TRACKER_PID = 0,
	336	LTTNG_KERNEL_TRACKER_VPID = 1,
	337	LTTNG_KERNEL_TRACKER_UID = 2,
	338	LTTNG_KERNEL_TRACKER_VUID = 3,
	339	LTTNG_KERNEL_TRACKER_GID = 4,
	340	LTTNG_KERNEL_TRACKER_VGID = 5,
	341	};
	342
	343	struct lttng_kernel_tracker_args {
b6c846f1	344	uint32_t type; /* enum lttng_kernel_tracker_type */
d1f652f8 MD	345	int32_t id;
	346	};
	347
33749530	348	/* LTTng file descriptor ioctl */
2df37e95	349	/* lttng/abi-old.h reserve 0x40, 0x41, 0x42, 0x43, and 0x44. */
6dccd6c1	350	#define LTTNG_KERNEL_SESSION _IO(0xF6, 0x45)
33749530	351	#define LTTNG_KERNEL_TRACER_VERSION \
6dccd6c1 JD	352	_IOR(0xF6, 0x46, struct lttng_kernel_tracer_version)
	353	#define LTTNG_KERNEL_TRACEPOINT_LIST _IO(0xF6, 0x47)
	354	#define LTTNG_KERNEL_WAIT_QUIESCENT _IO(0xF6, 0x48)
57105fc2	355	#define LTTNG_KERNEL_CALIBRATE \
6dccd6c1	356	_IOWR(0xF6, 0x49, struct lttng_kernel_calibrate)
29c956bb	357	#define LTTNG_KERNEL_SYSCALL_LIST _IO(0xF6, 0x4A)
42cabb80 MD	358	#define LTTNG_KERNEL_TRACER_ABI_VERSION \
42cabb80 MD	359	_IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version)
750b05f2	360	#define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_CREATE _IO(0xF6, 0x4C)
33749530 MD	361
33749530 MD	362	/* Session FD ioctl */
2df37e95	363	/* lttng/abi-old.h reserve 0x50, 0x51, 0x52, and 0x53. */
33749530	364	#define LTTNG_KERNEL_METADATA \
6dccd6c1	365	_IOW(0xF6, 0x54, struct lttng_kernel_channel)
ab2277d6	366	#define LTTNG_KERNEL_CHANNEL \
6dccd6c1 JD	367	_IOW(0xF6, 0x55, struct lttng_kernel_channel)
	368	#define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x56)
	369	#define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x57)
e0130fab MD	370	#define LTTNG_KERNEL_SESSION_TRACK_PID \
	371	_IOR(0xF6, 0x58, int32_t)
	372	#define LTTNG_KERNEL_SESSION_UNTRACK_PID \
	373	_IOR(0xF6, 0x59, int32_t)
d1f652f8	374
fe40f016 MD	375	/*
	376	* ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO
	377	* are generating two different ioctl numbers, but this was not done on
	378	* purpose. We should generally try to avoid those duplications.
	379	*/
7e6f9ef6	380	#define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS _IO(0xF6, 0x58)
9616f0bf	381	#define LTTNG_KERNEL_SESSION_METADATA_REGEN _IO(0xF6, 0x59)
7f859fbf	382
2df37e95	383	/* lttng/abi-old.h reserve 0x5A and 0x5B. */
601252cf	384	#define LTTNG_KERNEL_SESSION_STATEDUMP _IO(0xF6, 0x5C)
7f859fbf JR	385	#define LTTNG_KERNEL_SESSION_SET_NAME \
7f859fbf JR	386	_IOR(0xF6, 0x5D, struct lttng_kernel_session_name)
1c88f269 JR	387	#define LTTNG_KERNEL_SESSION_SET_CREATION_TIME \
1c88f269 JR	388	_IOR(0xF6, 0x5E, struct lttng_kernel_session_creation_time)
33749530 MD	389
33749530 MD	390	/* Channel FD ioctl */
2df37e95	391	/* lttng/abi-old.h reserve 0x60 and 0x61. */
6dccd6c1	392	#define LTTNG_KERNEL_STREAM _IO(0xF6, 0x62)
ab2277d6	393	#define LTTNG_KERNEL_EVENT \
6dccd6c1	394	_IOW(0xF6, 0x63, struct lttng_kernel_event)
12e579db MD	395	#define LTTNG_KERNEL_SYSCALL_MASK \
12e579db MD	396	_IOWR(0xF6, 0x64, struct lttng_kernel_syscall_mask)
57a13317	397
8070f5c0	398	/* Event and Channel FD ioctl */
2df37e95	399	/* lttng/abi-old.h reserve 0x70. */
8070f5c0	400	#define LTTNG_KERNEL_CONTEXT \
6dccd6c1	401	_IOW(0xF6, 0x71, struct lttng_kernel_context)
8070f5c0	402
99f52fcc	403	/* Event, Event notifier, Channel, Counter and Session ioctl */
2df37e95	404	/* lttng/abi-old.h reserve 0x80 and 0x81. */
6dccd6c1 JD	405	#define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x82)
6dccd6c1 JD	406	#define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x83)
e64957da	407
99f52fcc FD	408	/* Trigger group and session ioctl */
	409	#define LTTNG_KERNEL_COUNTER \
	410	_IOW(0xF6, 0x84, struct lttng_kernel_counter_conf)
	411
dffef45d	412	/* Event and Event notifier FD ioctl */
07dfc1d0	413	#define LTTNG_KERNEL_FILTER _IO(0xF6, 0x90)
3aed4dca	414	#define LTTNG_KERNEL_ADD_CALLSITE _IO(0xF6, 0x91)
07dfc1d0	415
d1f652f8 MD	416	/* Session FD ioctl (continued) */
	417	#define LTTNG_KERNEL_SESSION_LIST_TRACKER_IDS \
	418	_IOR(0xF6, 0xA0, struct lttng_kernel_tracker_args)
	419	#define LTTNG_KERNEL_SESSION_TRACK_ID \
	420	_IOR(0xF6, 0xA1, struct lttng_kernel_tracker_args)
	421	#define LTTNG_KERNEL_SESSION_UNTRACK_ID \
	422	_IOR(0xF6, 0xA2, struct lttng_kernel_tracker_args)
	423
dffef45d FD	424	/* Event notifier group file descriptor ioctl */
	425	#define LTTNG_KERNEL_EVENT_NOTIFIER_CREATE \
	426	_IOW(0xF6, 0xB0, struct lttng_kernel_event_notifier)
21f58fb7 FD	427	#define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_NOTIFICATION_FD \
21f58fb7 FD	428	_IO(0xF6, 0xB1)
dffef45d	429
99d223ad FD	430	/* Event notifier file descriptor ioctl */
	431	#define LTTNG_KERNEL_CAPTURE _IO(0xF6, 0xB8)
	432
99f52fcc FD	433	/* Counter file descriptor ioctl */
	434	#define LTTNG_KERNEL_COUNTER_READ \
	435	_IOWR(0xF6, 0xC0, struct lttng_kernel_counter_read)
	436	#define LTTNG_KERNEL_COUNTER_AGGREGATE \
	437	_IOWR(0xF6, 0xC1, struct lttng_kernel_counter_aggregate)
	438	#define LTTNG_KERNEL_COUNTER_CLEAR \
	439	_IOW(0xF6, 0xC2, struct lttng_kernel_counter_clear)
	440
	441
1aca53e1 MD	442	/*
	443	* LTTng-specific ioctls for the lib ringbuffer.
	444	*
	445	* Operations applying to the current sub-buffer need to occur between
	446	* a get/put or get_next/put_next ioctl pair.
	447	*/
	448
3b731ab1 JD	449	/* returns the timestamp begin of the current sub-buffer */
	450	#define LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN _IOR(0xF6, 0x20, uint64_t)
	451	/* returns the timestamp end of the current sub-buffer */
	452	#define LTTNG_RING_BUFFER_GET_TIMESTAMP_END _IOR(0xF6, 0x21, uint64_t)
1aca53e1	453	/* returns the number of events discarded of the current sub-buffer */
3b731ab1	454	#define LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED _IOR(0xF6, 0x22, uint64_t)
1aca53e1	455	/* returns the packet payload size of the current sub-buffer */
3b731ab1	456	#define LTTNG_RING_BUFFER_GET_CONTENT_SIZE _IOR(0xF6, 0x23, uint64_t)
1aca53e1	457	/* returns the packet size of the current sub-buffer*/
3b731ab1	458	#define LTTNG_RING_BUFFER_GET_PACKET_SIZE _IOR(0xF6, 0x24, uint64_t)
1aca53e1	459	/* returns the stream id (invariant for the stream) */
3b731ab1	460	#define LTTNG_RING_BUFFER_GET_STREAM_ID _IOR(0xF6, 0x25, uint64_t)
1aca53e1	461	/* returns the current timestamp as perceived from the tracer */
2348ca17	462	#define LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP _IOR(0xF6, 0x26, uint64_t)
1aca53e1	463	/* returns the packet sequence number of the current sub-buffer */
5b3cf4f9	464	#define LTTNG_RING_BUFFER_GET_SEQ_NUM _IOR(0xF6, 0x27, uint64_t)
1aca53e1	465	/* returns the stream instance id (invariant for the stream) */
5594698f	466	#define LTTNG_RING_BUFFER_INSTANCE_ID _IOR(0xF6, 0x28, uint64_t)
3b731ab1 JD	467
	468	#ifdef CONFIG_COMPAT
	469	/* returns the timestamp begin of the current sub-buffer */
	470	#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_BEGIN \
	471	LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN
	472	/* returns the timestamp end of the current sub-buffer */
	473	#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_END \
	474	LTTNG_RING_BUFFER_GET_TIMESTAMP_END
1aca53e1	475	/* returns the number of events discarded of the current sub-buffer */
3b731ab1 JD	476	#define LTTNG_RING_BUFFER_COMPAT_GET_EVENTS_DISCARDED \
3b731ab1 JD	477	LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED
1aca53e1	478	/* returns the packet payload size of the current sub-buffer */
3b731ab1 JD	479	#define LTTNG_RING_BUFFER_COMPAT_GET_CONTENT_SIZE \
3b731ab1 JD	480	LTTNG_RING_BUFFER_GET_CONTENT_SIZE
1aca53e1	481	/* returns the packet size of the current sub-buffer */
3b731ab1 JD	482	#define LTTNG_RING_BUFFER_COMPAT_GET_PACKET_SIZE \
3b731ab1 JD	483	LTTNG_RING_BUFFER_GET_PACKET_SIZE
1aca53e1	484	/* returns the stream id (invariant for the stream) */
3b731ab1 JD	485	#define LTTNG_RING_BUFFER_COMPAT_GET_STREAM_ID \
3b731ab1 JD	486	LTTNG_RING_BUFFER_GET_STREAM_ID
1aca53e1	487	/* returns the current timestamp as perceived from the tracer */
2348ca17 JD	488	#define LTTNG_RING_BUFFER_COMPAT_GET_CURRENT_TIMESTAMP \
2348ca17 JD	489	LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP
1aca53e1	490	/* returns the packet sequence number of the current sub-buffer */
5b3cf4f9 JD	491	#define LTTNG_RING_BUFFER_COMPAT_GET_SEQ_NUM \
5b3cf4f9 JD	492	LTTNG_RING_BUFFER_GET_SEQ_NUM
1aca53e1	493	/* returns the stream instance id (invariant for the stream) */
5594698f JD	494	#define LTTNG_RING_BUFFER_COMPAT_INSTANCE_ID \
5594698f JD	495	LTTNG_RING_BUFFER_INSTANCE_ID
3b731ab1 JD	496	#endif /* CONFIG_COMPAT */
3b731ab1 JD	497
e8951e63	498	#endif /* _LTTNG_ABI_H */