[deliverable/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,
	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,
};

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
9f36eaed MJ	1	/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
9f36eaed MJ	2	*
e8951e63	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 MD	13	#include <linux/fs.h>
57a13317 MD	14
42cabb80 MD	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	*/
3c997079	19	#define LTTNG_MODULES_ABI_MAJOR_VERSION 2
88a05382	20	#define LTTNG_MODULES_ABI_MINOR_VERSION 4
42cabb80	21
f8695253	22	#define LTTNG_KERNEL_SYM_NAME_LEN 256
88a05382	23	#define LTTNG_KERNEL_SESSION_NAME_LEN 256
d6d808f3	24
38d024ae	25	enum lttng_kernel_instrumentation {
4c183524 MD	26	LTTNG_KERNEL_TRACEPOINT = 0,
	27	LTTNG_KERNEL_KPROBE = 1,
	28	LTTNG_KERNEL_FUNCTION = 2,
7371f44c	29	LTTNG_KERNEL_KRETPROBE = 3,
1ec65de1	30	LTTNG_KERNEL_NOOP = 4, /* not hooked */
43880ee8	31	LTTNG_KERNEL_SYSCALL = 5,
149b9a9d	32	LTTNG_KERNEL_UPROBE = 6,
57a13317 MD	33	};
57a13317 MD	34
96ba7208 JD	35	/*
	36	* LTTng consumer mode
	37	*/
	38	enum lttng_kernel_output {
	39	LTTNG_KERNEL_SPLICE = 0,
	40	LTTNG_KERNEL_MMAP = 1,
	41	};
	42
57a13317 MD	43	/*
	44	* LTTng DebugFS ABI structures.
	45	*/
8e099bae	46	#define LTTNG_KERNEL_CHANNEL_PADDING LTTNG_KERNEL_SYM_NAME_LEN + 32
38d024ae	47	struct lttng_kernel_channel {
9e245ead	48	uint64_t subbuf_size; /* in bytes */
80c16bcf	49	uint64_t num_subbuf;
9e245ead MD	50	unsigned int switch_timer_interval; /* usecs */
9e245ead MD	51	unsigned int read_timer_interval; /* usecs */
96ba7208	52	enum lttng_kernel_output output; /* splice, mmap */
6dccd6c1	53	int overwrite; /* 1: overwrite, 0: discard */
8e099bae	54	char padding[LTTNG_KERNEL_CHANNEL_PADDING];
1a598612	55	} __attribute__((packed));
57a13317	56
7371f44c MD	57	struct lttng_kernel_kretprobe {
	58	uint64_t addr;
	59
	60	uint64_t offset;
f8695253	61	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	62	} __attribute__((packed));
7371f44c	63
38d024ae MD	64	/*
	65	* Either addr is used, or symbol_name and offset.
	66	*/
	67	struct lttng_kernel_kprobe {
80c16bcf	68	uint64_t addr;
38d024ae	69
80c16bcf	70	uint64_t offset;
f8695253	71	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	72	} __attribute__((packed));
d6d808f3	73
f17701fb	74	struct lttng_kernel_function_tracer {
f8695253	75	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	76	} __attribute__((packed));
f17701fb	77
149b9a9d	78	struct lttng_kernel_uprobe {
56377c91	79	int fd;
3aed4dca FD	80	} __attribute__((packed));
	81
	82	struct lttng_kernel_event_callsite_uprobe {
149b9a9d YB	83	uint64_t offset;
	84	} __attribute__((packed));
	85
3aed4dca FD	86	struct lttng_kernel_event_callsite {
	87	union {
	88	struct lttng_kernel_event_callsite_uprobe uprobe;
	89	} u;
	90	} __attribute__((packed));
	91
43880ee8	92	/*
3c997079	93	* For syscall tracing, name = "*" means "enable all".
43880ee8	94	*/
8e099bae MD	95	#define LTTNG_KERNEL_EVENT_PADDING1 16
8e099bae MD	96	#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
d6d808f3	97	struct lttng_kernel_event {
f8695253	98	char name[LTTNG_KERNEL_SYM_NAME_LEN]; /* event name */
d6d808f3	99	enum lttng_kernel_instrumentation instrumentation;
8e099bae MD	100	char padding[LTTNG_KERNEL_EVENT_PADDING1];
8e099bae MD	101
d6d808f3 MD	102	/* Per instrumentation type configuration */
d6d808f3 MD	103	union {
7371f44c	104	struct lttng_kernel_kretprobe kretprobe;
d6d808f3	105	struct lttng_kernel_kprobe kprobe;
f17701fb	106	struct lttng_kernel_function_tracer ftrace;
149b9a9d	107	struct lttng_kernel_uprobe uprobe;
8e099bae	108	char padding[LTTNG_KERNEL_EVENT_PADDING2];
d6d808f3	109	} u;
1a598612	110	} __attribute__((packed));
c099397a	111
80c16bcf	112	struct lttng_kernel_tracer_version {
c6c9e10f MD	113	uint32_t major;
c6c9e10f MD	114	uint32_t minor;
80c16bcf	115	uint32_t patchlevel;
1a598612	116	} __attribute__((packed));
80c16bcf	117
42cabb80 MD	118	struct lttng_kernel_tracer_abi_version {
	119	uint32_t major;
	120	uint32_t minor;
	121	} __attribute__((packed));
	122
88a05382 JR	123	struct lttng_kernel_session_name {
	124	char name[LTTNG_KERNEL_SESSION_NAME_LEN];
	125	} __attribute__((packed));
	126
3db41b2c MD	127	enum lttng_kernel_calibrate_type {
3db41b2c MD	128	LTTNG_KERNEL_CALIBRATE_KRETPROBE,
57105fc2 MD	129	};
57105fc2 MD	130
3db41b2c MD	131	struct lttng_kernel_calibrate {
3db41b2c MD	132	enum lttng_kernel_calibrate_type type; /* type (input) */
1a598612	133	} __attribute__((packed));
57105fc2	134
12e579db MD	135	struct lttng_kernel_syscall_mask {
	136	uint32_t len; /* in bits */
	137	char mask[];
	138	} __attribute__((packed));
	139
12a313a5	140	enum lttng_kernel_context_type {
4c183524 MD	141	LTTNG_KERNEL_CONTEXT_PID = 0,
4c183524 MD	142	LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1,
a2563e83	143	LTTNG_KERNEL_CONTEXT_PROCNAME = 2,
4c183524 MD	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,
975da2c0	151	LTTNG_KERNEL_CONTEXT_HOSTNAME = 10,
b3699d90	152	LTTNG_KERNEL_CONTEXT_CPU_ID = 11,
79150a49 JD	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,
2fa2d39a FG	157	LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16,
2fa2d39a FG	158	LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17,
8ac79eab MJ	159	LTTNG_KERNEL_CONTEXT_CGROUP_NS = 18,
	160	LTTNG_KERNEL_CONTEXT_IPC_NS = 19,
	161	LTTNG_KERNEL_CONTEXT_MNT_NS = 20,
	162	LTTNG_KERNEL_CONTEXT_NET_NS = 21,
	163	LTTNG_KERNEL_CONTEXT_PID_NS = 22,
	164	LTTNG_KERNEL_CONTEXT_USER_NS = 23,
	165	LTTNG_KERNEL_CONTEXT_UTS_NS = 24,
c123d77d MJ	166	LTTNG_KERNEL_CONTEXT_UID = 25,
	167	LTTNG_KERNEL_CONTEXT_EUID = 26,
	168	LTTNG_KERNEL_CONTEXT_SUID = 27,
	169	LTTNG_KERNEL_CONTEXT_GID = 28,
	170	LTTNG_KERNEL_CONTEXT_EGID = 29,
	171	LTTNG_KERNEL_CONTEXT_SGID = 30,
	172	LTTNG_KERNEL_CONTEXT_VUID = 31,
	173	LTTNG_KERNEL_CONTEXT_VEUID = 32,
	174	LTTNG_KERNEL_CONTEXT_VSUID = 33,
	175	LTTNG_KERNEL_CONTEXT_VGID = 34,
	176	LTTNG_KERNEL_CONTEXT_VEGID = 35,
	177	LTTNG_KERNEL_CONTEXT_VSGID = 36,
8070f5c0 MD	178	};
	179
	180	struct lttng_kernel_perf_counter_ctx {
	181	uint32_t type;
	182	uint64_t config;
f8695253	183	char name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	184	} __attribute__((packed));
8070f5c0	185
8e099bae MD	186	#define LTTNG_KERNEL_CONTEXT_PADDING1 16
8e099bae MD	187	#define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
8070f5c0	188	struct lttng_kernel_context {
12a313a5	189	enum lttng_kernel_context_type ctx;
8e099bae MD	190	char padding[LTTNG_KERNEL_CONTEXT_PADDING1];
8e099bae MD	191
8070f5c0	192	union {
8070f5c0	193	struct lttng_kernel_perf_counter_ctx perf_counter;
8e099bae	194	char padding[LTTNG_KERNEL_CONTEXT_PADDING2];
8070f5c0	195	} u;
1a598612	196	} __attribute__((packed));
8070f5c0	197
f127e61e	198	#define LTTNG_KERNEL_FILTER_BYTECODE_MAX_LEN 65536
07dfc1d0 MD	199	struct lttng_kernel_filter_bytecode {
	200	uint32_t len;
	201	uint32_t reloc_offset;
	202	uint64_t seqnum;
	203	char data[0];
	204	} __attribute__((packed));
	205
33749530	206	/* LTTng file descriptor ioctl */
6dccd6c1	207	#define LTTNG_KERNEL_SESSION _IO(0xF6, 0x45)
33749530	208	#define LTTNG_KERNEL_TRACER_VERSION \
6dccd6c1 JD	209	_IOR(0xF6, 0x46, struct lttng_kernel_tracer_version)
	210	#define LTTNG_KERNEL_TRACEPOINT_LIST _IO(0xF6, 0x47)
	211	#define LTTNG_KERNEL_WAIT_QUIESCENT _IO(0xF6, 0x48)
57105fc2	212	#define LTTNG_KERNEL_CALIBRATE \
6dccd6c1	213	_IOWR(0xF6, 0x49, struct lttng_kernel_calibrate)
29c956bb	214	#define LTTNG_KERNEL_SYSCALL_LIST _IO(0xF6, 0x4A)
42cabb80 MD	215	#define LTTNG_KERNEL_TRACER_ABI_VERSION \
42cabb80 MD	216	_IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version)
33749530 MD	217
	218	/* Session FD ioctl */
	219	#define LTTNG_KERNEL_METADATA \
6dccd6c1	220	_IOW(0xF6, 0x54, struct lttng_kernel_channel)
ab2277d6	221	#define LTTNG_KERNEL_CHANNEL \
6dccd6c1 JD	222	_IOW(0xF6, 0x55, struct lttng_kernel_channel)
	223	#define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x56)
	224	#define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x57)
e0130fab MD	225	#define LTTNG_KERNEL_SESSION_TRACK_PID \
	226	_IOR(0xF6, 0x58, int32_t)
	227	#define LTTNG_KERNEL_SESSION_UNTRACK_PID \
	228	_IOR(0xF6, 0x59, int32_t)
fe40f016 MD	229	/*
	230	* ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO
	231	* are generating two different ioctl numbers, but this was not done on
	232	* purpose. We should generally try to avoid those duplications.
	233	*/
7e6f9ef6	234	#define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS _IO(0xF6, 0x58)
9616f0bf	235	#define LTTNG_KERNEL_SESSION_METADATA_REGEN _IO(0xF6, 0x59)
88a05382	236
601252cf MD	237	/* 0x5A and 0x5B are reserved for a future ABI-breaking cleanup. */
601252cf MD	238	#define LTTNG_KERNEL_SESSION_STATEDUMP _IO(0xF6, 0x5C)
88a05382 JR	239	#define LTTNG_KERNEL_SESSION_SET_NAME \
88a05382 JR	240	_IOR(0xF6, 0x5D, struct lttng_kernel_session_name)
33749530 MD	241
33749530 MD	242	/* Channel FD ioctl */
6dccd6c1	243	#define LTTNG_KERNEL_STREAM _IO(0xF6, 0x62)
ab2277d6	244	#define LTTNG_KERNEL_EVENT \
6dccd6c1	245	_IOW(0xF6, 0x63, struct lttng_kernel_event)
12e579db MD	246	#define LTTNG_KERNEL_SYSCALL_MASK \
12e579db MD	247	_IOWR(0xF6, 0x64, struct lttng_kernel_syscall_mask)
57a13317	248
8070f5c0 MD	249	/* Event and Channel FD ioctl */
8070f5c0 MD	250	#define LTTNG_KERNEL_CONTEXT \
6dccd6c1	251	_IOW(0xF6, 0x71, struct lttng_kernel_context)
8070f5c0	252
e64957da	253	/* Event, Channel and Session ioctl */
6dccd6c1 JD	254	#define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x82)
6dccd6c1 JD	255	#define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x83)
e64957da	256
07dfc1d0 MD	257	/* Event FD ioctl */
07dfc1d0 MD	258	#define LTTNG_KERNEL_FILTER _IO(0xF6, 0x90)
3aed4dca	259	#define LTTNG_KERNEL_ADD_CALLSITE _IO(0xF6, 0x91)
07dfc1d0	260
1aca53e1 MD	261	/*
	262	* LTTng-specific ioctls for the lib ringbuffer.
	263	*
	264	* Operations applying to the current sub-buffer need to occur between
	265	* a get/put or get_next/put_next ioctl pair.
	266	*/
	267
3b731ab1 JD	268	/* returns the timestamp begin of the current sub-buffer */
	269	#define LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN _IOR(0xF6, 0x20, uint64_t)
	270	/* returns the timestamp end of the current sub-buffer */
	271	#define LTTNG_RING_BUFFER_GET_TIMESTAMP_END _IOR(0xF6, 0x21, uint64_t)
1aca53e1	272	/* returns the number of events discarded of the current sub-buffer */
3b731ab1	273	#define LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED _IOR(0xF6, 0x22, uint64_t)
1aca53e1	274	/* returns the packet payload size of the current sub-buffer */
3b731ab1	275	#define LTTNG_RING_BUFFER_GET_CONTENT_SIZE _IOR(0xF6, 0x23, uint64_t)
1aca53e1	276	/* returns the packet size of the current sub-buffer*/
3b731ab1	277	#define LTTNG_RING_BUFFER_GET_PACKET_SIZE _IOR(0xF6, 0x24, uint64_t)
1aca53e1	278	/* returns the stream id (invariant for the stream) */
3b731ab1	279	#define LTTNG_RING_BUFFER_GET_STREAM_ID _IOR(0xF6, 0x25, uint64_t)
1aca53e1	280	/* returns the current timestamp as perceived from the tracer */
2348ca17	281	#define LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP _IOR(0xF6, 0x26, uint64_t)
1aca53e1	282	/* returns the packet sequence number of the current sub-buffer */
5b3cf4f9	283	#define LTTNG_RING_BUFFER_GET_SEQ_NUM _IOR(0xF6, 0x27, uint64_t)
1aca53e1	284	/* returns the stream instance id (invariant for the stream) */
5594698f	285	#define LTTNG_RING_BUFFER_INSTANCE_ID _IOR(0xF6, 0x28, uint64_t)
3b731ab1 JD	286
	287	#ifdef CONFIG_COMPAT
	288	/* returns the timestamp begin of the current sub-buffer */
	289	#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_BEGIN \
	290	LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN
	291	/* returns the timestamp end of the current sub-buffer */
	292	#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_END \
	293	LTTNG_RING_BUFFER_GET_TIMESTAMP_END
1aca53e1	294	/* returns the number of events discarded of the current sub-buffer */
3b731ab1 JD	295	#define LTTNG_RING_BUFFER_COMPAT_GET_EVENTS_DISCARDED \
3b731ab1 JD	296	LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED
1aca53e1	297	/* returns the packet payload size of the current sub-buffer */
3b731ab1 JD	298	#define LTTNG_RING_BUFFER_COMPAT_GET_CONTENT_SIZE \
3b731ab1 JD	299	LTTNG_RING_BUFFER_GET_CONTENT_SIZE
1aca53e1	300	/* returns the packet size of the current sub-buffer */
3b731ab1 JD	301	#define LTTNG_RING_BUFFER_COMPAT_GET_PACKET_SIZE \
3b731ab1 JD	302	LTTNG_RING_BUFFER_GET_PACKET_SIZE
1aca53e1	303	/* returns the stream id (invariant for the stream) */
3b731ab1 JD	304	#define LTTNG_RING_BUFFER_COMPAT_GET_STREAM_ID \
3b731ab1 JD	305	LTTNG_RING_BUFFER_GET_STREAM_ID
1aca53e1	306	/* returns the current timestamp as perceived from the tracer */
2348ca17 JD	307	#define LTTNG_RING_BUFFER_COMPAT_GET_CURRENT_TIMESTAMP \
2348ca17 JD	308	LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP
1aca53e1	309	/* returns the packet sequence number of the current sub-buffer */
5b3cf4f9 JD	310	#define LTTNG_RING_BUFFER_COMPAT_GET_SEQ_NUM \
5b3cf4f9 JD	311	LTTNG_RING_BUFFER_GET_SEQ_NUM
1aca53e1	312	/* returns the stream instance id (invariant for the stream) */
5594698f JD	313	#define LTTNG_RING_BUFFER_COMPAT_INSTANCE_ID \
5594698f JD	314	LTTNG_RING_BUFFER_INSTANCE_ID
3b731ab1 JD	315	#endif /* CONFIG_COMPAT */
3b731ab1 JD	316
e8951e63	317	#endif /* _LTTNG_ABI_H */