[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		5

#define LTTNG_KERNEL_SYM_NAME_LEN	256
#define LTTNG_KERNEL_SESSION_NAME_LEN	256

/*
 * The expected iso8601 time formats are either:
 *
 * - YYYYmmddTHHMMSS+HHMM           (20 characters + \0)
 * - YYYY-mm-ddTHH:MM:SS+HH:MM      (25 characters + \0)
 */
#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 */
	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));

enum lttng_kernel_syscall_entryexit {
	LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0,
	LTTNG_KERNEL_SYSCALL_ENTRY = 1,		/* Not implemented. */
	LTTNG_KERNEL_SYSCALL_EXIT = 2,		/* Not implemented. */
};

enum lttng_kernel_syscall_abi {
	LTTNG_KERNEL_SYSCALL_ABI_ALL = 0,
	LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1,	/* Not implemented. */
	LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2,	/* Not implemented. */
};

enum lttng_kernel_syscall_match {
	LTTNG_SYSCALL_MATCH_NAME = 0,
	LTTNG_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	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;
		struct lttng_kernel_syscall syscall;
		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));

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 {
	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[];
} __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 {
	enum lttng_kernel_tracker_type 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)

/* 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, Channel 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)

/* Event 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)

/*
 * 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
911ae48d	20	#define LTTNG_MODULES_ABI_MINOR_VERSION 5
42cabb80	21
f8695253	22	#define LTTNG_KERNEL_SYM_NAME_LEN 256
7f859fbf	23	#define LTTNG_KERNEL_SESSION_NAME_LEN 256
b42d3db8 MD	24
	25	/*
	26	* The expected iso8601 time formats are either:
	27	*
	28	* - YYYYmmddTHHMMSS+HHMM (20 characters + \0)
	29	* - YYYY-mm-ddTHH:MM:SS+HH:MM (25 characters + \0)
	30	*/
1c88f269	31	#define LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN 26
d6d808f3	32
38d024ae	33	enum lttng_kernel_instrumentation {
4c183524 MD	34	LTTNG_KERNEL_TRACEPOINT = 0,
	35	LTTNG_KERNEL_KPROBE = 1,
	36	LTTNG_KERNEL_FUNCTION = 2,
7371f44c	37	LTTNG_KERNEL_KRETPROBE = 3,
1ec65de1	38	LTTNG_KERNEL_NOOP = 4, /* not hooked */
43880ee8	39	LTTNG_KERNEL_SYSCALL = 5,
149b9a9d	40	LTTNG_KERNEL_UPROBE = 6,
57a13317 MD	41	};
57a13317 MD	42
96ba7208 JD	43	/*
	44	* LTTng consumer mode
	45	*/
	46	enum lttng_kernel_output {
	47	LTTNG_KERNEL_SPLICE = 0,
	48	LTTNG_KERNEL_MMAP = 1,
	49	};
	50
57a13317 MD	51	/*
	52	* LTTng DebugFS ABI structures.
	53	*/
8e099bae	54	#define LTTNG_KERNEL_CHANNEL_PADDING LTTNG_KERNEL_SYM_NAME_LEN + 32
38d024ae	55	struct lttng_kernel_channel {
9e245ead	56	uint64_t subbuf_size; /* in bytes */
80c16bcf	57	uint64_t num_subbuf;
9e245ead MD	58	unsigned int switch_timer_interval; /* usecs */
9e245ead MD	59	unsigned int read_timer_interval; /* usecs */
96ba7208	60	enum lttng_kernel_output output; /* splice, mmap */
6dccd6c1	61	int overwrite; /* 1: overwrite, 0: discard */
8e099bae	62	char padding[LTTNG_KERNEL_CHANNEL_PADDING];
1a598612	63	} __attribute__((packed));
57a13317	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];
1a598612	70	} __attribute__((packed));
7371f44c	71
38d024ae MD	72	/*
	73	* Either addr is used, or symbol_name and offset.
	74	*/
	75	struct lttng_kernel_kprobe {
80c16bcf	76	uint64_t addr;
38d024ae	77
80c16bcf	78	uint64_t offset;
f8695253	79	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	80	} __attribute__((packed));
d6d808f3	81
f17701fb	82	struct lttng_kernel_function_tracer {
f8695253	83	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	84	} __attribute__((packed));
f17701fb	85
149b9a9d	86	struct lttng_kernel_uprobe {
56377c91	87	int fd;
3aed4dca FD	88	} __attribute__((packed));
	89
	90	struct lttng_kernel_event_callsite_uprobe {
149b9a9d YB	91	uint64_t offset;
	92	} __attribute__((packed));
	93
3aed4dca FD	94	struct lttng_kernel_event_callsite {
	95	union {
	96	struct lttng_kernel_event_callsite_uprobe uprobe;
	97	} u;
	98	} __attribute__((packed));
	99
ad594e3a MD	100	enum lttng_kernel_syscall_entryexit {
	101	LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0,
	102	LTTNG_KERNEL_SYSCALL_ENTRY = 1, /* Not implemented. */
	103	LTTNG_KERNEL_SYSCALL_EXIT = 2, /* Not implemented. */
	104	};
	105
	106	enum lttng_kernel_syscall_abi {
	107	LTTNG_KERNEL_SYSCALL_ABI_ALL = 0,
	108	LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1, /* Not implemented. */
	109	LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2, /* Not implemented. */
	110	};
	111
	112	enum lttng_kernel_syscall_match {
	113	LTTNG_SYSCALL_MATCH_NAME = 0,
	114	LTTNG_SYSCALL_MATCH_NR = 1, /* Not implemented. */
	115	};
	116
	117	struct lttng_kernel_syscall {
	118	uint8_t entryexit; /* enum lttng_kernel_syscall_entryexit */
	119	uint8_t abi; /* enum lttng_kernel_syscall_abi */
	120	uint8_t match; /* enum lttng_kernel_syscall_match */
	121	uint8_t padding;
	122	uint32_t nr; /* For LTTNG_SYSCALL_MATCH_NR */
	123	} __attribute__((packed));
	124
43880ee8	125	/*
3c997079	126	* For syscall tracing, name = "*" means "enable all".
43880ee8	127	*/
8e099bae MD	128	#define LTTNG_KERNEL_EVENT_PADDING1 16
8e099bae MD	129	#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
d6d808f3	130	struct lttng_kernel_event {
f8695253	131	char name[LTTNG_KERNEL_SYM_NAME_LEN]; /* event name */
d6d808f3	132	enum lttng_kernel_instrumentation instrumentation;
8e099bae MD	133	char padding[LTTNG_KERNEL_EVENT_PADDING1];
8e099bae MD	134
d6d808f3 MD	135	/* Per instrumentation type configuration */
d6d808f3 MD	136	union {
7371f44c	137	struct lttng_kernel_kretprobe kretprobe;
d6d808f3	138	struct lttng_kernel_kprobe kprobe;
f17701fb	139	struct lttng_kernel_function_tracer ftrace;
149b9a9d	140	struct lttng_kernel_uprobe uprobe;
ad594e3a	141	struct lttng_kernel_syscall syscall;
8e099bae	142	char padding[LTTNG_KERNEL_EVENT_PADDING2];
d6d808f3	143	} u;
1a598612	144	} __attribute__((packed));
c099397a	145
80c16bcf	146	struct lttng_kernel_tracer_version {
c6c9e10f MD	147	uint32_t major;
c6c9e10f MD	148	uint32_t minor;
80c16bcf	149	uint32_t patchlevel;
1a598612	150	} __attribute__((packed));
80c16bcf	151
42cabb80 MD	152	struct lttng_kernel_tracer_abi_version {
	153	uint32_t major;
	154	uint32_t minor;
	155	} __attribute__((packed));
	156
7f859fbf JR	157	struct lttng_kernel_session_name {
	158	char name[LTTNG_KERNEL_SESSION_NAME_LEN];
	159	} __attribute__((packed));
	160
1c88f269 JR	161	struct lttng_kernel_session_creation_time {
	162	char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN];
	163	} __attribute__((packed));
	164
3db41b2c MD	165	enum lttng_kernel_calibrate_type {
3db41b2c MD	166	LTTNG_KERNEL_CALIBRATE_KRETPROBE,
57105fc2 MD	167	};
57105fc2 MD	168
3db41b2c MD	169	struct lttng_kernel_calibrate {
3db41b2c MD	170	enum lttng_kernel_calibrate_type type; /* type (input) */
1a598612	171	} __attribute__((packed));
57105fc2	172
12e579db MD	173	struct lttng_kernel_syscall_mask {
	174	uint32_t len; /* in bits */
	175	char mask[];
	176	} __attribute__((packed));
	177
12a313a5	178	enum lttng_kernel_context_type {
4c183524 MD	179	LTTNG_KERNEL_CONTEXT_PID = 0,
4c183524 MD	180	LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1,
a2563e83	181	LTTNG_KERNEL_CONTEXT_PROCNAME = 2,
4c183524 MD	182	LTTNG_KERNEL_CONTEXT_PRIO = 3,
	183	LTTNG_KERNEL_CONTEXT_NICE = 4,
	184	LTTNG_KERNEL_CONTEXT_VPID = 5,
	185	LTTNG_KERNEL_CONTEXT_TID = 6,
	186	LTTNG_KERNEL_CONTEXT_VTID = 7,
	187	LTTNG_KERNEL_CONTEXT_PPID = 8,
	188	LTTNG_KERNEL_CONTEXT_VPPID = 9,
975da2c0	189	LTTNG_KERNEL_CONTEXT_HOSTNAME = 10,
b3699d90	190	LTTNG_KERNEL_CONTEXT_CPU_ID = 11,
79150a49 JD	191	LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12,
	192	LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13,
	193	LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14,
	194	LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15,
2fa2d39a FG	195	LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16,
2fa2d39a FG	196	LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17,
a6cf40a4 MJ	197	LTTNG_KERNEL_CONTEXT_CGROUP_NS = 18,
	198	LTTNG_KERNEL_CONTEXT_IPC_NS = 19,
	199	LTTNG_KERNEL_CONTEXT_MNT_NS = 20,
	200	LTTNG_KERNEL_CONTEXT_NET_NS = 21,
	201	LTTNG_KERNEL_CONTEXT_PID_NS = 22,
	202	LTTNG_KERNEL_CONTEXT_USER_NS = 23,
	203	LTTNG_KERNEL_CONTEXT_UTS_NS = 24,
dc923e75 MJ	204	LTTNG_KERNEL_CONTEXT_UID = 25,
	205	LTTNG_KERNEL_CONTEXT_EUID = 26,
	206	LTTNG_KERNEL_CONTEXT_SUID = 27,
	207	LTTNG_KERNEL_CONTEXT_GID = 28,
	208	LTTNG_KERNEL_CONTEXT_EGID = 29,
	209	LTTNG_KERNEL_CONTEXT_SGID = 30,
	210	LTTNG_KERNEL_CONTEXT_VUID = 31,
	211	LTTNG_KERNEL_CONTEXT_VEUID = 32,
	212	LTTNG_KERNEL_CONTEXT_VSUID = 33,
	213	LTTNG_KERNEL_CONTEXT_VGID = 34,
	214	LTTNG_KERNEL_CONTEXT_VEGID = 35,
	215	LTTNG_KERNEL_CONTEXT_VSGID = 36,
8070f5c0 MD	216	};
	217
	218	struct lttng_kernel_perf_counter_ctx {
	219	uint32_t type;
	220	uint64_t config;
f8695253	221	char name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	222	} __attribute__((packed));
8070f5c0	223
8e099bae MD	224	#define LTTNG_KERNEL_CONTEXT_PADDING1 16
8e099bae MD	225	#define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
8070f5c0	226	struct lttng_kernel_context {
12a313a5	227	enum lttng_kernel_context_type ctx;
8e099bae MD	228	char padding[LTTNG_KERNEL_CONTEXT_PADDING1];
8e099bae MD	229
8070f5c0	230	union {
8070f5c0	231	struct lttng_kernel_perf_counter_ctx perf_counter;
8e099bae	232	char padding[LTTNG_KERNEL_CONTEXT_PADDING2];
8070f5c0	233	} u;
1a598612	234	} __attribute__((packed));
8070f5c0	235
f127e61e	236	#define LTTNG_KERNEL_FILTER_BYTECODE_MAX_LEN 65536
07dfc1d0 MD	237	struct lttng_kernel_filter_bytecode {
	238	uint32_t len;
	239	uint32_t reloc_offset;
	240	uint64_t seqnum;
ad48a5c0	241	char data[];
07dfc1d0 MD	242	} __attribute__((packed));
07dfc1d0 MD	243
d1f652f8 MD	244	enum lttng_kernel_tracker_type {
	245	LTTNG_KERNEL_TRACKER_UNKNOWN = -1,
	246
	247	LTTNG_KERNEL_TRACKER_PID = 0,
	248	LTTNG_KERNEL_TRACKER_VPID = 1,
	249	LTTNG_KERNEL_TRACKER_UID = 2,
	250	LTTNG_KERNEL_TRACKER_VUID = 3,
	251	LTTNG_KERNEL_TRACKER_GID = 4,
	252	LTTNG_KERNEL_TRACKER_VGID = 5,
	253	};
	254
	255	struct lttng_kernel_tracker_args {
	256	enum lttng_kernel_tracker_type type;
	257	int32_t id;
	258	};
	259
33749530	260	/* LTTng file descriptor ioctl */
436f6407	261	/* lttng-abi-old.h reserve 0x40, 0x41, 0x42, 0x43, and 0x44. */
6dccd6c1	262	#define LTTNG_KERNEL_SESSION _IO(0xF6, 0x45)
33749530	263	#define LTTNG_KERNEL_TRACER_VERSION \
6dccd6c1 JD	264	_IOR(0xF6, 0x46, struct lttng_kernel_tracer_version)
	265	#define LTTNG_KERNEL_TRACEPOINT_LIST _IO(0xF6, 0x47)
	266	#define LTTNG_KERNEL_WAIT_QUIESCENT _IO(0xF6, 0x48)
57105fc2	267	#define LTTNG_KERNEL_CALIBRATE \
6dccd6c1	268	_IOWR(0xF6, 0x49, struct lttng_kernel_calibrate)
29c956bb	269	#define LTTNG_KERNEL_SYSCALL_LIST _IO(0xF6, 0x4A)
42cabb80 MD	270	#define LTTNG_KERNEL_TRACER_ABI_VERSION \
42cabb80 MD	271	_IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version)
33749530 MD	272
33749530 MD	273	/* Session FD ioctl */
436f6407	274	/* lttng-abi-old.h reserve 0x50, 0x51, 0x52, and 0x53. */
33749530	275	#define LTTNG_KERNEL_METADATA \
6dccd6c1	276	_IOW(0xF6, 0x54, struct lttng_kernel_channel)
ab2277d6	277	#define LTTNG_KERNEL_CHANNEL \
6dccd6c1 JD	278	_IOW(0xF6, 0x55, struct lttng_kernel_channel)
	279	#define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x56)
	280	#define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x57)
e0130fab MD	281	#define LTTNG_KERNEL_SESSION_TRACK_PID \
	282	_IOR(0xF6, 0x58, int32_t)
	283	#define LTTNG_KERNEL_SESSION_UNTRACK_PID \
	284	_IOR(0xF6, 0x59, int32_t)
d1f652f8	285
fe40f016 MD	286	/*
	287	* ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO
	288	* are generating two different ioctl numbers, but this was not done on
	289	* purpose. We should generally try to avoid those duplications.
	290	*/
7e6f9ef6	291	#define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS _IO(0xF6, 0x58)
9616f0bf	292	#define LTTNG_KERNEL_SESSION_METADATA_REGEN _IO(0xF6, 0x59)
7f859fbf	293
436f6407	294	/* lttng-abi-old.h reserve 0x5A and 0x5B. */
601252cf	295	#define LTTNG_KERNEL_SESSION_STATEDUMP _IO(0xF6, 0x5C)
7f859fbf JR	296	#define LTTNG_KERNEL_SESSION_SET_NAME \
7f859fbf JR	297	_IOR(0xF6, 0x5D, struct lttng_kernel_session_name)
1c88f269 JR	298	#define LTTNG_KERNEL_SESSION_SET_CREATION_TIME \
1c88f269 JR	299	_IOR(0xF6, 0x5E, struct lttng_kernel_session_creation_time)
33749530 MD	300
33749530 MD	301	/* Channel FD ioctl */
436f6407	302	/* lttng-abi-old.h reserve 0x60 and 0x61. */
6dccd6c1	303	#define LTTNG_KERNEL_STREAM _IO(0xF6, 0x62)
ab2277d6	304	#define LTTNG_KERNEL_EVENT \
6dccd6c1	305	_IOW(0xF6, 0x63, struct lttng_kernel_event)
12e579db MD	306	#define LTTNG_KERNEL_SYSCALL_MASK \
12e579db MD	307	_IOWR(0xF6, 0x64, struct lttng_kernel_syscall_mask)
57a13317	308
8070f5c0	309	/* Event and Channel FD ioctl */
436f6407	310	/* lttng-abi-old.h reserve 0x70. */
8070f5c0	311	#define LTTNG_KERNEL_CONTEXT \
6dccd6c1	312	_IOW(0xF6, 0x71, struct lttng_kernel_context)
8070f5c0	313
e64957da	314	/* Event, Channel and Session ioctl */
436f6407	315	/* lttng-abi-old.h reserve 0x80 and 0x81. */
6dccd6c1 JD	316	#define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x82)
6dccd6c1 JD	317	#define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x83)
e64957da	318
07dfc1d0 MD	319	/* Event FD ioctl */
07dfc1d0 MD	320	#define LTTNG_KERNEL_FILTER _IO(0xF6, 0x90)
3aed4dca	321	#define LTTNG_KERNEL_ADD_CALLSITE _IO(0xF6, 0x91)
07dfc1d0	322
d1f652f8 MD	323	/* Session FD ioctl (continued) */
	324	#define LTTNG_KERNEL_SESSION_LIST_TRACKER_IDS \
	325	_IOR(0xF6, 0xA0, struct lttng_kernel_tracker_args)
	326	#define LTTNG_KERNEL_SESSION_TRACK_ID \
	327	_IOR(0xF6, 0xA1, struct lttng_kernel_tracker_args)
	328	#define LTTNG_KERNEL_SESSION_UNTRACK_ID \
	329	_IOR(0xF6, 0xA2, struct lttng_kernel_tracker_args)
	330
1aca53e1 MD	331	/*
	332	* LTTng-specific ioctls for the lib ringbuffer.
	333	*
	334	* Operations applying to the current sub-buffer need to occur between
	335	* a get/put or get_next/put_next ioctl pair.
	336	*/
	337
3b731ab1 JD	338	/* returns the timestamp begin of the current sub-buffer */
	339	#define LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN _IOR(0xF6, 0x20, uint64_t)
	340	/* returns the timestamp end of the current sub-buffer */
	341	#define LTTNG_RING_BUFFER_GET_TIMESTAMP_END _IOR(0xF6, 0x21, uint64_t)
1aca53e1	342	/* returns the number of events discarded of the current sub-buffer */
3b731ab1	343	#define LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED _IOR(0xF6, 0x22, uint64_t)
1aca53e1	344	/* returns the packet payload size of the current sub-buffer */
3b731ab1	345	#define LTTNG_RING_BUFFER_GET_CONTENT_SIZE _IOR(0xF6, 0x23, uint64_t)
1aca53e1	346	/* returns the packet size of the current sub-buffer*/
3b731ab1	347	#define LTTNG_RING_BUFFER_GET_PACKET_SIZE _IOR(0xF6, 0x24, uint64_t)
1aca53e1	348	/* returns the stream id (invariant for the stream) */
3b731ab1	349	#define LTTNG_RING_BUFFER_GET_STREAM_ID _IOR(0xF6, 0x25, uint64_t)
1aca53e1	350	/* returns the current timestamp as perceived from the tracer */
2348ca17	351	#define LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP _IOR(0xF6, 0x26, uint64_t)
1aca53e1	352	/* returns the packet sequence number of the current sub-buffer */
5b3cf4f9	353	#define LTTNG_RING_BUFFER_GET_SEQ_NUM _IOR(0xF6, 0x27, uint64_t)
1aca53e1	354	/* returns the stream instance id (invariant for the stream) */
5594698f	355	#define LTTNG_RING_BUFFER_INSTANCE_ID _IOR(0xF6, 0x28, uint64_t)
3b731ab1 JD	356
	357	#ifdef CONFIG_COMPAT
	358	/* returns the timestamp begin of the current sub-buffer */
	359	#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_BEGIN \
	360	LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN
	361	/* returns the timestamp end of the current sub-buffer */
	362	#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_END \
	363	LTTNG_RING_BUFFER_GET_TIMESTAMP_END
1aca53e1	364	/* returns the number of events discarded of the current sub-buffer */
3b731ab1 JD	365	#define LTTNG_RING_BUFFER_COMPAT_GET_EVENTS_DISCARDED \
3b731ab1 JD	366	LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED
1aca53e1	367	/* returns the packet payload size of the current sub-buffer */
3b731ab1 JD	368	#define LTTNG_RING_BUFFER_COMPAT_GET_CONTENT_SIZE \
3b731ab1 JD	369	LTTNG_RING_BUFFER_GET_CONTENT_SIZE
1aca53e1	370	/* returns the packet size of the current sub-buffer */
3b731ab1 JD	371	#define LTTNG_RING_BUFFER_COMPAT_GET_PACKET_SIZE \
3b731ab1 JD	372	LTTNG_RING_BUFFER_GET_PACKET_SIZE
1aca53e1	373	/* returns the stream id (invariant for the stream) */
3b731ab1 JD	374	#define LTTNG_RING_BUFFER_COMPAT_GET_STREAM_ID \
3b731ab1 JD	375	LTTNG_RING_BUFFER_GET_STREAM_ID
1aca53e1	376	/* returns the current timestamp as perceived from the tracer */
2348ca17 JD	377	#define LTTNG_RING_BUFFER_COMPAT_GET_CURRENT_TIMESTAMP \
2348ca17 JD	378	LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP
1aca53e1	379	/* returns the packet sequence number of the current sub-buffer */
5b3cf4f9 JD	380	#define LTTNG_RING_BUFFER_COMPAT_GET_SEQ_NUM \
5b3cf4f9 JD	381	LTTNG_RING_BUFFER_GET_SEQ_NUM
1aca53e1	382	/* returns the stream instance id (invariant for the stream) */
5594698f JD	383	#define LTTNG_RING_BUFFER_COMPAT_INSTANCE_ID \
5594698f JD	384	LTTNG_RING_BUFFER_INSTANCE_ID
3b731ab1 JD	385	#endif /* CONFIG_COMPAT */
3b731ab1 JD	386
e8951e63	387	#endif /* _LTTNG_ABI_H */