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

/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
 *
 * 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>

/*
 * 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		4

#define LTTNG_KERNEL_SYM_NAME_LEN	256
#define LTTNG_KERNEL_SESSION_NAME_LEN	256

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 */
	enum lttng_kernel_output output;	/* splice, mmap */
	int overwrite;				/* 1: overwrite, 0: discard */
	char padding[LTTNG_KERNEL_CHANNEL_PADDING];
} __attribute__((packed));

struct lttng_kernel_kretprobe {
	uint64_t addr;

	uint64_t offset;
	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
} __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));

/*
 * For syscall tracing, name = "*" means "enable all".
 */
#define LTTNG_KERNEL_EVENT_PADDING1	16
#define LTTNG_KERNEL_EVENT_PADDING2	LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_event {
	char name[LTTNG_KERNEL_SYM_NAME_LEN];	/* event name */
	enum lttng_kernel_instrumentation instrumentation;
	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;
		char padding[LTTNG_KERNEL_EVENT_PADDING2];
	} u;
} __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));

enum lttng_kernel_calibrate_type {
	LTTNG_KERNEL_CALIBRATE_KRETPROBE,
};

struct lttng_kernel_calibrate {
	enum lttng_kernel_calibrate_type type;	/* 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,
};

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 {
	enum lttng_kernel_context_type ctx;
	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));

/* LTTng file descriptor ioctl */
#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)

/* Session FD ioctl */
#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)

/* 0x5A and 0x5B are reserved for a future ABI-breaking cleanup. */
#define LTTNG_KERNEL_SESSION_STATEDUMP		_IO(0xF6, 0x5C)
#define LTTNG_KERNEL_SESSION_SET_NAME		\
	_IOR(0xF6, 0x5D, struct lttng_kernel_session_name)

/* Channel FD ioctl */
#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 */
#define LTTNG_KERNEL_CONTEXT			\
	_IOW(0xF6, 0x71, struct lttng_kernel_context)

/* Event, Channel and Session ioctl */
#define LTTNG_KERNEL_ENABLE			_IO(0xF6, 0x82)
#define LTTNG_KERNEL_DISABLE			_IO(0xF6, 0x83)

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

/*
 * 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
	1	/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
	2	*
	3	* lttng-abi.h
	4	*
	5	* LTTng ABI header
	6	*
	7	* Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	8	*/
	9
	10	#ifndef _LTTNG_ABI_H
	11	#define _LTTNG_ABI_H
	12
	13	#include <linux/fs.h>
	14
	15	/*
	16	* Major/minor version of ABI exposed to lttng tools. Major number
	17	* should be increased when an incompatible ABI change is done.
	18	*/
	19	#define LTTNG_MODULES_ABI_MAJOR_VERSION 2
	20	#define LTTNG_MODULES_ABI_MINOR_VERSION 4
	21
	22	#define LTTNG_KERNEL_SYM_NAME_LEN 256
	23	#define LTTNG_KERNEL_SESSION_NAME_LEN 256
	24
	25	enum lttng_kernel_instrumentation {
	26	LTTNG_KERNEL_TRACEPOINT = 0,
	27	LTTNG_KERNEL_KPROBE = 1,
	28	LTTNG_KERNEL_FUNCTION = 2,
	29	LTTNG_KERNEL_KRETPROBE = 3,
	30	LTTNG_KERNEL_NOOP = 4, /* not hooked */
	31	LTTNG_KERNEL_SYSCALL = 5,
	32	LTTNG_KERNEL_UPROBE = 6,
	33	};
	34
	35	/*
	36	* LTTng consumer mode
	37	*/
	38	enum lttng_kernel_output {
	39	LTTNG_KERNEL_SPLICE = 0,
	40	LTTNG_KERNEL_MMAP = 1,
	41	};
	42
	43	/*
	44	* LTTng DebugFS ABI structures.
	45	*/
	46	#define LTTNG_KERNEL_CHANNEL_PADDING LTTNG_KERNEL_SYM_NAME_LEN + 32
	47	struct lttng_kernel_channel {
	48	uint64_t subbuf_size; /* in bytes */
	49	uint64_t num_subbuf;
	50	unsigned int switch_timer_interval; /* usecs */
	51	unsigned int read_timer_interval; /* usecs */
	52	enum lttng_kernel_output output; /* splice, mmap */
	53	int overwrite; /* 1: overwrite, 0: discard */
	54	char padding[LTTNG_KERNEL_CHANNEL_PADDING];
	55	} __attribute__((packed));
	56
	57	struct lttng_kernel_kretprobe {
	58	uint64_t addr;
	59
	60	uint64_t offset;
	61	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
	62	} __attribute__((packed));
	63
	64	/*
	65	* Either addr is used, or symbol_name and offset.
	66	*/
	67	struct lttng_kernel_kprobe {
	68	uint64_t addr;
	69
	70	uint64_t offset;
	71	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
	72	} __attribute__((packed));
	73
	74	struct lttng_kernel_function_tracer {
	75	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
	76	} __attribute__((packed));
	77
	78	struct lttng_kernel_uprobe {
	79	int fd;
	80	} __attribute__((packed));
	81
	82	struct lttng_kernel_event_callsite_uprobe {
	83	uint64_t offset;
	84	} __attribute__((packed));
	85
	86	struct lttng_kernel_event_callsite {
	87	union {
	88	struct lttng_kernel_event_callsite_uprobe uprobe;
	89	} u;
	90	} __attribute__((packed));
	91
	92	/*
	93	* For syscall tracing, name = "*" means "enable all".
	94	*/
	95	#define LTTNG_KERNEL_EVENT_PADDING1 16
	96	#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
	97	struct lttng_kernel_event {
	98	char name[LTTNG_KERNEL_SYM_NAME_LEN]; /* event name */
	99	enum lttng_kernel_instrumentation instrumentation;
	100	char padding[LTTNG_KERNEL_EVENT_PADDING1];
	101
	102	/* Per instrumentation type configuration */
	103	union {
	104	struct lttng_kernel_kretprobe kretprobe;
	105	struct lttng_kernel_kprobe kprobe;
	106	struct lttng_kernel_function_tracer ftrace;
	107	struct lttng_kernel_uprobe uprobe;
	108	char padding[LTTNG_KERNEL_EVENT_PADDING2];
	109	} u;
	110	} __attribute__((packed));
	111
	112	struct lttng_kernel_tracer_version {
	113	uint32_t major;
	114	uint32_t minor;
	115	uint32_t patchlevel;
	116	} __attribute__((packed));
	117
	118	struct lttng_kernel_tracer_abi_version {
	119	uint32_t major;
	120	uint32_t minor;
	121	} __attribute__((packed));
	122
	123	struct lttng_kernel_session_name {
	124	char name[LTTNG_KERNEL_SESSION_NAME_LEN];
	125	} __attribute__((packed));
	126
	127	enum lttng_kernel_calibrate_type {
	128	LTTNG_KERNEL_CALIBRATE_KRETPROBE,
	129	};
	130
	131	struct lttng_kernel_calibrate {
	132	enum lttng_kernel_calibrate_type type; /* type (input) */
	133	} __attribute__((packed));
	134
	135	struct lttng_kernel_syscall_mask {
	136	uint32_t len; /* in bits */
	137	char mask[];
	138	} __attribute__((packed));
	139
	140	enum lttng_kernel_context_type {
	141	LTTNG_KERNEL_CONTEXT_PID = 0,
	142	LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1,
	143	LTTNG_KERNEL_CONTEXT_PROCNAME = 2,
	144	LTTNG_KERNEL_CONTEXT_PRIO = 3,
	145	LTTNG_KERNEL_CONTEXT_NICE = 4,
	146	LTTNG_KERNEL_CONTEXT_VPID = 5,
	147	LTTNG_KERNEL_CONTEXT_TID = 6,
	148	LTTNG_KERNEL_CONTEXT_VTID = 7,
	149	LTTNG_KERNEL_CONTEXT_PPID = 8,
	150	LTTNG_KERNEL_CONTEXT_VPPID = 9,
	151	LTTNG_KERNEL_CONTEXT_HOSTNAME = 10,
	152	LTTNG_KERNEL_CONTEXT_CPU_ID = 11,
	153	LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12,
	154	LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13,
	155	LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14,
	156	LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15,
	157	LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16,
	158	LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17,
	159	};
	160
	161	struct lttng_kernel_perf_counter_ctx {
	162	uint32_t type;
	163	uint64_t config;
	164	char name[LTTNG_KERNEL_SYM_NAME_LEN];
	165	} __attribute__((packed));
	166
	167	#define LTTNG_KERNEL_CONTEXT_PADDING1 16
	168	#define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
	169	struct lttng_kernel_context {
	170	enum lttng_kernel_context_type ctx;
	171	char padding[LTTNG_KERNEL_CONTEXT_PADDING1];
	172
	173	union {
	174	struct lttng_kernel_perf_counter_ctx perf_counter;
	175	char padding[LTTNG_KERNEL_CONTEXT_PADDING2];
	176	} u;
	177	} __attribute__((packed));
	178
	179	#define LTTNG_KERNEL_FILTER_BYTECODE_MAX_LEN 65536
	180	struct lttng_kernel_filter_bytecode {
	181	uint32_t len;
	182	uint32_t reloc_offset;
	183	uint64_t seqnum;
	184	char data[0];
	185	} __attribute__((packed));
	186
	187	/* LTTng file descriptor ioctl */
	188	#define LTTNG_KERNEL_SESSION _IO(0xF6, 0x45)
	189	#define LTTNG_KERNEL_TRACER_VERSION \
	190	_IOR(0xF6, 0x46, struct lttng_kernel_tracer_version)
	191	#define LTTNG_KERNEL_TRACEPOINT_LIST _IO(0xF6, 0x47)
	192	#define LTTNG_KERNEL_WAIT_QUIESCENT _IO(0xF6, 0x48)
	193	#define LTTNG_KERNEL_CALIBRATE \
	194	_IOWR(0xF6, 0x49, struct lttng_kernel_calibrate)
	195	#define LTTNG_KERNEL_SYSCALL_LIST _IO(0xF6, 0x4A)
	196	#define LTTNG_KERNEL_TRACER_ABI_VERSION \
	197	_IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version)
	198
	199	/* Session FD ioctl */
	200	#define LTTNG_KERNEL_METADATA \
	201	_IOW(0xF6, 0x54, struct lttng_kernel_channel)
	202	#define LTTNG_KERNEL_CHANNEL \
	203	_IOW(0xF6, 0x55, struct lttng_kernel_channel)
	204	#define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x56)
	205	#define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x57)
	206	#define LTTNG_KERNEL_SESSION_TRACK_PID \
	207	_IOR(0xF6, 0x58, int32_t)
	208	#define LTTNG_KERNEL_SESSION_UNTRACK_PID \
	209	_IOR(0xF6, 0x59, int32_t)
	210	/*
	211	* ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO
	212	* are generating two different ioctl numbers, but this was not done on
	213	* purpose. We should generally try to avoid those duplications.
	214	*/
	215	#define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS _IO(0xF6, 0x58)
	216	#define LTTNG_KERNEL_SESSION_METADATA_REGEN _IO(0xF6, 0x59)
	217
	218	/* 0x5A and 0x5B are reserved for a future ABI-breaking cleanup. */
	219	#define LTTNG_KERNEL_SESSION_STATEDUMP _IO(0xF6, 0x5C)
	220	#define LTTNG_KERNEL_SESSION_SET_NAME \
	221	_IOR(0xF6, 0x5D, struct lttng_kernel_session_name)
	222
	223	/* Channel FD ioctl */
	224	#define LTTNG_KERNEL_STREAM _IO(0xF6, 0x62)
	225	#define LTTNG_KERNEL_EVENT \
	226	_IOW(0xF6, 0x63, struct lttng_kernel_event)
	227	#define LTTNG_KERNEL_SYSCALL_MASK \
	228	_IOWR(0xF6, 0x64, struct lttng_kernel_syscall_mask)
	229
	230	/* Event and Channel FD ioctl */
	231	#define LTTNG_KERNEL_CONTEXT \
	232	_IOW(0xF6, 0x71, struct lttng_kernel_context)
	233
	234	/* Event, Channel and Session ioctl */
	235	#define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x82)
	236	#define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x83)
	237
	238	/* Event FD ioctl */
	239	#define LTTNG_KERNEL_FILTER _IO(0xF6, 0x90)
	240	#define LTTNG_KERNEL_ADD_CALLSITE _IO(0xF6, 0x91)
	241
	242	/*
	243	* LTTng-specific ioctls for the lib ringbuffer.
	244	*
	245	* Operations applying to the current sub-buffer need to occur between
	246	* a get/put or get_next/put_next ioctl pair.
	247	*/
	248
	249	/* returns the timestamp begin of the current sub-buffer */
	250	#define LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN _IOR(0xF6, 0x20, uint64_t)
	251	/* returns the timestamp end of the current sub-buffer */
	252	#define LTTNG_RING_BUFFER_GET_TIMESTAMP_END _IOR(0xF6, 0x21, uint64_t)
	253	/* returns the number of events discarded of the current sub-buffer */
	254	#define LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED _IOR(0xF6, 0x22, uint64_t)
	255	/* returns the packet payload size of the current sub-buffer */
	256	#define LTTNG_RING_BUFFER_GET_CONTENT_SIZE _IOR(0xF6, 0x23, uint64_t)
	257	/* returns the packet size of the current sub-buffer*/
	258	#define LTTNG_RING_BUFFER_GET_PACKET_SIZE _IOR(0xF6, 0x24, uint64_t)
	259	/* returns the stream id (invariant for the stream) */
	260	#define LTTNG_RING_BUFFER_GET_STREAM_ID _IOR(0xF6, 0x25, uint64_t)
	261	/* returns the current timestamp as perceived from the tracer */
	262	#define LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP _IOR(0xF6, 0x26, uint64_t)
	263	/* returns the packet sequence number of the current sub-buffer */
	264	#define LTTNG_RING_BUFFER_GET_SEQ_NUM _IOR(0xF6, 0x27, uint64_t)
	265	/* returns the stream instance id (invariant for the stream) */
	266	#define LTTNG_RING_BUFFER_INSTANCE_ID _IOR(0xF6, 0x28, uint64_t)
	267
	268	#ifdef CONFIG_COMPAT
	269	/* returns the timestamp begin of the current sub-buffer */
	270	#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_BEGIN \
	271	LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN
	272	/* returns the timestamp end of the current sub-buffer */
	273	#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_END \
	274	LTTNG_RING_BUFFER_GET_TIMESTAMP_END
	275	/* returns the number of events discarded of the current sub-buffer */
	276	#define LTTNG_RING_BUFFER_COMPAT_GET_EVENTS_DISCARDED \
	277	LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED
	278	/* returns the packet payload size of the current sub-buffer */
	279	#define LTTNG_RING_BUFFER_COMPAT_GET_CONTENT_SIZE \
	280	LTTNG_RING_BUFFER_GET_CONTENT_SIZE
	281	/* returns the packet size of the current sub-buffer */
	282	#define LTTNG_RING_BUFFER_COMPAT_GET_PACKET_SIZE \
	283	LTTNG_RING_BUFFER_GET_PACKET_SIZE
	284	/* returns the stream id (invariant for the stream) */
	285	#define LTTNG_RING_BUFFER_COMPAT_GET_STREAM_ID \
	286	LTTNG_RING_BUFFER_GET_STREAM_ID
	287	/* returns the current timestamp as perceived from the tracer */
	288	#define LTTNG_RING_BUFFER_COMPAT_GET_CURRENT_TIMESTAMP \
	289	LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP
	290	/* returns the packet sequence number of the current sub-buffer */
	291	#define LTTNG_RING_BUFFER_COMPAT_GET_SEQ_NUM \
	292	LTTNG_RING_BUFFER_GET_SEQ_NUM
	293	/* returns the stream instance id (invariant for the stream) */
	294	#define LTTNG_RING_BUFFER_COMPAT_INSTANCE_ID \
	295	LTTNG_RING_BUFFER_INSTANCE_ID
	296	#endif /* CONFIG_COMPAT */
	297
	298	#endif /* _LTTNG_ABI_H */