[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>

/*
 * 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
#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));

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	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_PADDING1	16
struct lttng_kernel_event_notifier {
	struct lttng_kernel_event event;

	char padding[LTTNG_KERNEL_EVENT_NOTIFIER_PADDING1];
} __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));

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 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 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)

/*
 * 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 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
1c88f269	24	#define LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN 26
d6d808f3	25
38d024ae	26	enum lttng_kernel_instrumentation {
4c183524 MD	27	LTTNG_KERNEL_TRACEPOINT = 0,
	28	LTTNG_KERNEL_KPROBE = 1,
	29	LTTNG_KERNEL_FUNCTION = 2,
7371f44c	30	LTTNG_KERNEL_KRETPROBE = 3,
1ec65de1	31	LTTNG_KERNEL_NOOP = 4, /* not hooked */
43880ee8	32	LTTNG_KERNEL_SYSCALL = 5,
149b9a9d	33	LTTNG_KERNEL_UPROBE = 6,
57a13317 MD	34	};
57a13317 MD	35
96ba7208 JD	36	/*
	37	* LTTng consumer mode
	38	*/
	39	enum lttng_kernel_output {
	40	LTTNG_KERNEL_SPLICE = 0,
	41	LTTNG_KERNEL_MMAP = 1,
	42	};
	43
57a13317 MD	44	/*
	45	* LTTng DebugFS ABI structures.
	46	*/
8e099bae	47	#define LTTNG_KERNEL_CHANNEL_PADDING LTTNG_KERNEL_SYM_NAME_LEN + 32
38d024ae	48	struct lttng_kernel_channel {
9e245ead	49	uint64_t subbuf_size; /* in bytes */
80c16bcf	50	uint64_t num_subbuf;
9e245ead MD	51	unsigned int switch_timer_interval; /* usecs */
9e245ead MD	52	unsigned int read_timer_interval; /* usecs */
b6c846f1	53	uint32_t output; /* enum lttng_kernel_output (splice, mmap) */
6dccd6c1	54	int overwrite; /* 1: overwrite, 0: discard */
8e099bae	55	char padding[LTTNG_KERNEL_CHANNEL_PADDING];
1a598612	56	} __attribute__((packed));
57a13317	57
7371f44c MD	58	struct lttng_kernel_kretprobe {
	59	uint64_t addr;
	60
	61	uint64_t offset;
f8695253	62	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	63	} __attribute__((packed));
7371f44c	64
38d024ae MD	65	/*
	66	* Either addr is used, or symbol_name and offset.
	67	*/
	68	struct lttng_kernel_kprobe {
80c16bcf	69	uint64_t addr;
38d024ae	70
80c16bcf	71	uint64_t offset;
f8695253	72	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	73	} __attribute__((packed));
d6d808f3	74
f17701fb	75	struct lttng_kernel_function_tracer {
f8695253	76	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	77	} __attribute__((packed));
f17701fb	78
149b9a9d	79	struct lttng_kernel_uprobe {
56377c91	80	int fd;
3aed4dca FD	81	} __attribute__((packed));
	82
	83	struct lttng_kernel_event_callsite_uprobe {
149b9a9d YB	84	uint64_t offset;
	85	} __attribute__((packed));
	86
3aed4dca FD	87	struct lttng_kernel_event_callsite {
	88	union {
	89	struct lttng_kernel_event_callsite_uprobe uprobe;
	90	} u;
	91	} __attribute__((packed));
	92
badfe9f5 MD	93	enum lttng_kernel_syscall_entryexit {
	94	LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0,
	95	LTTNG_KERNEL_SYSCALL_ENTRY = 1, /* Not implemented. */
	96	LTTNG_KERNEL_SYSCALL_EXIT = 2, /* Not implemented. */
	97	};
	98
	99	enum lttng_kernel_syscall_abi {
	100	LTTNG_KERNEL_SYSCALL_ABI_ALL = 0,
	101	LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1, /* Not implemented. */
	102	LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2, /* Not implemented. */
	103	};
	104
	105	enum lttng_kernel_syscall_match {
	106	LTTNG_SYSCALL_MATCH_NAME = 0,
	107	LTTNG_SYSCALL_MATCH_NR = 1, /* Not implemented. */
	108	};
	109
	110	struct lttng_kernel_syscall {
	111	uint8_t entryexit; /* enum lttng_kernel_syscall_entryexit */
	112	uint8_t abi; /* enum lttng_kernel_syscall_abi */
	113	uint8_t match; /* enum lttng_kernel_syscall_match */
	114	uint8_t padding;
	115	uint32_t nr; /* For LTTNG_SYSCALL_MATCH_NR */
	116	} __attribute__((packed));
	117
43880ee8	118	/*
3c997079	119	* For syscall tracing, name = "*" means "enable all".
43880ee8	120	*/
d4f52727	121	#define LTTNG_KERNEL_EVENT_PADDING1 8
8e099bae	122	#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
d6d808f3	123	struct lttng_kernel_event {
f8695253	124	char name[LTTNG_KERNEL_SYM_NAME_LEN]; /* event name */
b6c846f1	125	uint32_t instrumentation; /* enum lttng_kernel_instrumentation */
d4f52727	126	uint64_t token; /* User-provided token */
8e099bae MD	127	char padding[LTTNG_KERNEL_EVENT_PADDING1];
8e099bae MD	128
d6d808f3 MD	129	/* Per instrumentation type configuration */
d6d808f3 MD	130	union {
7371f44c	131	struct lttng_kernel_kretprobe kretprobe;
d6d808f3	132	struct lttng_kernel_kprobe kprobe;
f17701fb	133	struct lttng_kernel_function_tracer ftrace;
149b9a9d	134	struct lttng_kernel_uprobe uprobe;
badfe9f5	135	struct lttng_kernel_syscall syscall;
8e099bae	136	char padding[LTTNG_KERNEL_EVENT_PADDING2];
d6d808f3	137	} u;
1a598612	138	} __attribute__((packed));
c099397a	139
dffef45d FD	140	#define LTTNG_KERNEL_EVENT_NOTIFIER_PADDING1 16
	141	struct lttng_kernel_event_notifier {
	142	struct lttng_kernel_event event;
	143
	144	char padding[LTTNG_KERNEL_EVENT_NOTIFIER_PADDING1];
	145	} __attribute__((packed));
	146
80c16bcf	147	struct lttng_kernel_tracer_version {
c6c9e10f MD	148	uint32_t major;
c6c9e10f MD	149	uint32_t minor;
80c16bcf	150	uint32_t patchlevel;
1a598612	151	} __attribute__((packed));
80c16bcf	152
42cabb80 MD	153	struct lttng_kernel_tracer_abi_version {
	154	uint32_t major;
	155	uint32_t minor;
	156	} __attribute__((packed));
	157
7f859fbf JR	158	struct lttng_kernel_session_name {
	159	char name[LTTNG_KERNEL_SESSION_NAME_LEN];
	160	} __attribute__((packed));
	161
1c88f269 JR	162	struct lttng_kernel_session_creation_time {
	163	char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN];
	164	} __attribute__((packed));
	165
3db41b2c MD	166	enum lttng_kernel_calibrate_type {
3db41b2c MD	167	LTTNG_KERNEL_CALIBRATE_KRETPROBE,
57105fc2 MD	168	};
57105fc2 MD	169
3db41b2c	170	struct lttng_kernel_calibrate {
b6c846f1	171	uint32_t type; /* enum lttng_kernel_calibrate_type (input) */
1a598612	172	} __attribute__((packed));
57105fc2	173
12e579db MD	174	struct lttng_kernel_syscall_mask {
	175	uint32_t len; /* in bits */
	176	char mask[];
	177	} __attribute__((packed));
	178
12a313a5	179	enum lttng_kernel_context_type {
4c183524 MD	180	LTTNG_KERNEL_CONTEXT_PID = 0,
4c183524 MD	181	LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1,
a2563e83	182	LTTNG_KERNEL_CONTEXT_PROCNAME = 2,
4c183524 MD	183	LTTNG_KERNEL_CONTEXT_PRIO = 3,
	184	LTTNG_KERNEL_CONTEXT_NICE = 4,
	185	LTTNG_KERNEL_CONTEXT_VPID = 5,
	186	LTTNG_KERNEL_CONTEXT_TID = 6,
	187	LTTNG_KERNEL_CONTEXT_VTID = 7,
	188	LTTNG_KERNEL_CONTEXT_PPID = 8,
	189	LTTNG_KERNEL_CONTEXT_VPPID = 9,
975da2c0	190	LTTNG_KERNEL_CONTEXT_HOSTNAME = 10,
b3699d90	191	LTTNG_KERNEL_CONTEXT_CPU_ID = 11,
79150a49 JD	192	LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12,
	193	LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13,
	194	LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14,
	195	LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15,
2fa2d39a FG	196	LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16,
2fa2d39a FG	197	LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17,
a6cf40a4 MJ	198	LTTNG_KERNEL_CONTEXT_CGROUP_NS = 18,
	199	LTTNG_KERNEL_CONTEXT_IPC_NS = 19,
	200	LTTNG_KERNEL_CONTEXT_MNT_NS = 20,
	201	LTTNG_KERNEL_CONTEXT_NET_NS = 21,
	202	LTTNG_KERNEL_CONTEXT_PID_NS = 22,
	203	LTTNG_KERNEL_CONTEXT_USER_NS = 23,
	204	LTTNG_KERNEL_CONTEXT_UTS_NS = 24,
dc923e75 MJ	205	LTTNG_KERNEL_CONTEXT_UID = 25,
	206	LTTNG_KERNEL_CONTEXT_EUID = 26,
	207	LTTNG_KERNEL_CONTEXT_SUID = 27,
	208	LTTNG_KERNEL_CONTEXT_GID = 28,
	209	LTTNG_KERNEL_CONTEXT_EGID = 29,
	210	LTTNG_KERNEL_CONTEXT_SGID = 30,
	211	LTTNG_KERNEL_CONTEXT_VUID = 31,
	212	LTTNG_KERNEL_CONTEXT_VEUID = 32,
	213	LTTNG_KERNEL_CONTEXT_VSUID = 33,
	214	LTTNG_KERNEL_CONTEXT_VGID = 34,
	215	LTTNG_KERNEL_CONTEXT_VEGID = 35,
	216	LTTNG_KERNEL_CONTEXT_VSGID = 36,
876e2e92	217	LTTNG_KERNEL_CONTEXT_TIME_NS = 37,
8070f5c0 MD	218	};
	219
	220	struct lttng_kernel_perf_counter_ctx {
	221	uint32_t type;
	222	uint64_t config;
f8695253	223	char name[LTTNG_KERNEL_SYM_NAME_LEN];
1a598612	224	} __attribute__((packed));
8070f5c0	225
8e099bae MD	226	#define LTTNG_KERNEL_CONTEXT_PADDING1 16
8e099bae MD	227	#define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
8070f5c0	228	struct lttng_kernel_context {
b6c846f1	229	uint32_t ctx; /enum lttng_kernel_context_type /
8e099bae MD	230	char padding[LTTNG_KERNEL_CONTEXT_PADDING1];
8e099bae MD	231
8070f5c0	232	union {
8070f5c0	233	struct lttng_kernel_perf_counter_ctx perf_counter;
8e099bae	234	char padding[LTTNG_KERNEL_CONTEXT_PADDING2];
8070f5c0	235	} u;
1a598612	236	} __attribute__((packed));
8070f5c0	237
f127e61e	238	#define LTTNG_KERNEL_FILTER_BYTECODE_MAX_LEN 65536
07dfc1d0 MD	239	struct lttng_kernel_filter_bytecode {
	240	uint32_t len;
	241	uint32_t reloc_offset;
	242	uint64_t seqnum;
	243	char data[0];
	244	} __attribute__((packed));
	245
d1f652f8 MD	246	enum lttng_kernel_tracker_type {
	247	LTTNG_KERNEL_TRACKER_UNKNOWN = -1,
	248
	249	LTTNG_KERNEL_TRACKER_PID = 0,
	250	LTTNG_KERNEL_TRACKER_VPID = 1,
	251	LTTNG_KERNEL_TRACKER_UID = 2,
	252	LTTNG_KERNEL_TRACKER_VUID = 3,
	253	LTTNG_KERNEL_TRACKER_GID = 4,
	254	LTTNG_KERNEL_TRACKER_VGID = 5,
	255	};
	256
	257	struct lttng_kernel_tracker_args {
b6c846f1	258	uint32_t type; /* enum lttng_kernel_tracker_type */
d1f652f8 MD	259	int32_t id;
	260	};
	261
33749530	262	/* LTTng file descriptor ioctl */
2df37e95	263	/* lttng/abi-old.h reserve 0x40, 0x41, 0x42, 0x43, and 0x44. */
6dccd6c1	264	#define LTTNG_KERNEL_SESSION _IO(0xF6, 0x45)
33749530	265	#define LTTNG_KERNEL_TRACER_VERSION \
6dccd6c1 JD	266	_IOR(0xF6, 0x46, struct lttng_kernel_tracer_version)
	267	#define LTTNG_KERNEL_TRACEPOINT_LIST _IO(0xF6, 0x47)
	268	#define LTTNG_KERNEL_WAIT_QUIESCENT _IO(0xF6, 0x48)
57105fc2	269	#define LTTNG_KERNEL_CALIBRATE \
6dccd6c1	270	_IOWR(0xF6, 0x49, struct lttng_kernel_calibrate)
29c956bb	271	#define LTTNG_KERNEL_SYSCALL_LIST _IO(0xF6, 0x4A)
42cabb80 MD	272	#define LTTNG_KERNEL_TRACER_ABI_VERSION \
42cabb80 MD	273	_IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version)
750b05f2	274	#define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_CREATE _IO(0xF6, 0x4C)
33749530 MD	275
33749530 MD	276	/* Session FD ioctl */
2df37e95	277	/* lttng/abi-old.h reserve 0x50, 0x51, 0x52, and 0x53. */
33749530	278	#define LTTNG_KERNEL_METADATA \
6dccd6c1	279	_IOW(0xF6, 0x54, struct lttng_kernel_channel)
ab2277d6	280	#define LTTNG_KERNEL_CHANNEL \
6dccd6c1 JD	281	_IOW(0xF6, 0x55, struct lttng_kernel_channel)
	282	#define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x56)
	283	#define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x57)
e0130fab MD	284	#define LTTNG_KERNEL_SESSION_TRACK_PID \
	285	_IOR(0xF6, 0x58, int32_t)
	286	#define LTTNG_KERNEL_SESSION_UNTRACK_PID \
	287	_IOR(0xF6, 0x59, int32_t)
d1f652f8	288
fe40f016 MD	289	/*
	290	* ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO
	291	* are generating two different ioctl numbers, but this was not done on
	292	* purpose. We should generally try to avoid those duplications.
	293	*/
7e6f9ef6	294	#define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS _IO(0xF6, 0x58)
9616f0bf	295	#define LTTNG_KERNEL_SESSION_METADATA_REGEN _IO(0xF6, 0x59)
7f859fbf	296
2df37e95	297	/* lttng/abi-old.h reserve 0x5A and 0x5B. */
601252cf	298	#define LTTNG_KERNEL_SESSION_STATEDUMP _IO(0xF6, 0x5C)
7f859fbf JR	299	#define LTTNG_KERNEL_SESSION_SET_NAME \
7f859fbf JR	300	_IOR(0xF6, 0x5D, struct lttng_kernel_session_name)
1c88f269 JR	301	#define LTTNG_KERNEL_SESSION_SET_CREATION_TIME \
1c88f269 JR	302	_IOR(0xF6, 0x5E, struct lttng_kernel_session_creation_time)
33749530 MD	303
33749530 MD	304	/* Channel FD ioctl */
2df37e95	305	/* lttng/abi-old.h reserve 0x60 and 0x61. */
6dccd6c1	306	#define LTTNG_KERNEL_STREAM _IO(0xF6, 0x62)
ab2277d6	307	#define LTTNG_KERNEL_EVENT \
6dccd6c1	308	_IOW(0xF6, 0x63, struct lttng_kernel_event)
12e579db MD	309	#define LTTNG_KERNEL_SYSCALL_MASK \
12e579db MD	310	_IOWR(0xF6, 0x64, struct lttng_kernel_syscall_mask)
57a13317	311
8070f5c0	312	/* Event and Channel FD ioctl */
2df37e95	313	/* lttng/abi-old.h reserve 0x70. */
8070f5c0	314	#define LTTNG_KERNEL_CONTEXT \
6dccd6c1	315	_IOW(0xF6, 0x71, struct lttng_kernel_context)
8070f5c0	316
dffef45d	317	/* Event, Event notifier, Channel and Session ioctl */
2df37e95	318	/* lttng/abi-old.h reserve 0x80 and 0x81. */
6dccd6c1 JD	319	#define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x82)
6dccd6c1 JD	320	#define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x83)
e64957da	321
dffef45d	322	/* Event and Event notifier FD ioctl */
07dfc1d0	323	#define LTTNG_KERNEL_FILTER _IO(0xF6, 0x90)
3aed4dca	324	#define LTTNG_KERNEL_ADD_CALLSITE _IO(0xF6, 0x91)
07dfc1d0	325
d1f652f8 MD	326	/* Session FD ioctl (continued) */
	327	#define LTTNG_KERNEL_SESSION_LIST_TRACKER_IDS \
	328	_IOR(0xF6, 0xA0, struct lttng_kernel_tracker_args)
	329	#define LTTNG_KERNEL_SESSION_TRACK_ID \
	330	_IOR(0xF6, 0xA1, struct lttng_kernel_tracker_args)
	331	#define LTTNG_KERNEL_SESSION_UNTRACK_ID \
	332	_IOR(0xF6, 0xA2, struct lttng_kernel_tracker_args)
	333
dffef45d FD	334	/* Event notifier group file descriptor ioctl */
	335	#define LTTNG_KERNEL_EVENT_NOTIFIER_CREATE \
	336	_IOW(0xF6, 0xB0, struct lttng_kernel_event_notifier)
	337
1aca53e1 MD	338	/*
	339	* LTTng-specific ioctls for the lib ringbuffer.
	340	*
	341	* Operations applying to the current sub-buffer need to occur between
	342	* a get/put or get_next/put_next ioctl pair.
	343	*/
	344
3b731ab1 JD	345	/* returns the timestamp begin of the current sub-buffer */
	346	#define LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN _IOR(0xF6, 0x20, uint64_t)
	347	/* returns the timestamp end of the current sub-buffer */
	348	#define LTTNG_RING_BUFFER_GET_TIMESTAMP_END _IOR(0xF6, 0x21, uint64_t)
1aca53e1	349	/* returns the number of events discarded of the current sub-buffer */
3b731ab1	350	#define LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED _IOR(0xF6, 0x22, uint64_t)
1aca53e1	351	/* returns the packet payload size of the current sub-buffer */
3b731ab1	352	#define LTTNG_RING_BUFFER_GET_CONTENT_SIZE _IOR(0xF6, 0x23, uint64_t)
1aca53e1	353	/* returns the packet size of the current sub-buffer*/
3b731ab1	354	#define LTTNG_RING_BUFFER_GET_PACKET_SIZE _IOR(0xF6, 0x24, uint64_t)
1aca53e1	355	/* returns the stream id (invariant for the stream) */
3b731ab1	356	#define LTTNG_RING_BUFFER_GET_STREAM_ID _IOR(0xF6, 0x25, uint64_t)
1aca53e1	357	/* returns the current timestamp as perceived from the tracer */
2348ca17	358	#define LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP _IOR(0xF6, 0x26, uint64_t)
1aca53e1	359	/* returns the packet sequence number of the current sub-buffer */
5b3cf4f9	360	#define LTTNG_RING_BUFFER_GET_SEQ_NUM _IOR(0xF6, 0x27, uint64_t)
1aca53e1	361	/* returns the stream instance id (invariant for the stream) */
5594698f	362	#define LTTNG_RING_BUFFER_INSTANCE_ID _IOR(0xF6, 0x28, uint64_t)
3b731ab1 JD	363
	364	#ifdef CONFIG_COMPAT
	365	/* returns the timestamp begin of the current sub-buffer */
	366	#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_BEGIN \
	367	LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN
	368	/* returns the timestamp end of the current sub-buffer */
	369	#define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_END \
	370	LTTNG_RING_BUFFER_GET_TIMESTAMP_END
1aca53e1	371	/* returns the number of events discarded of the current sub-buffer */
3b731ab1 JD	372	#define LTTNG_RING_BUFFER_COMPAT_GET_EVENTS_DISCARDED \
3b731ab1 JD	373	LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED
1aca53e1	374	/* returns the packet payload size of the current sub-buffer */
3b731ab1 JD	375	#define LTTNG_RING_BUFFER_COMPAT_GET_CONTENT_SIZE \
3b731ab1 JD	376	LTTNG_RING_BUFFER_GET_CONTENT_SIZE
1aca53e1	377	/* returns the packet size of the current sub-buffer */
3b731ab1 JD	378	#define LTTNG_RING_BUFFER_COMPAT_GET_PACKET_SIZE \
3b731ab1 JD	379	LTTNG_RING_BUFFER_GET_PACKET_SIZE
1aca53e1	380	/* returns the stream id (invariant for the stream) */
3b731ab1 JD	381	#define LTTNG_RING_BUFFER_COMPAT_GET_STREAM_ID \
3b731ab1 JD	382	LTTNG_RING_BUFFER_GET_STREAM_ID
1aca53e1	383	/* returns the current timestamp as perceived from the tracer */
2348ca17 JD	384	#define LTTNG_RING_BUFFER_COMPAT_GET_CURRENT_TIMESTAMP \
2348ca17 JD	385	LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP
1aca53e1	386	/* returns the packet sequence number of the current sub-buffer */
5b3cf4f9 JD	387	#define LTTNG_RING_BUFFER_COMPAT_GET_SEQ_NUM \
5b3cf4f9 JD	388	LTTNG_RING_BUFFER_GET_SEQ_NUM
1aca53e1	389	/* returns the stream instance id (invariant for the stream) */
5594698f JD	390	#define LTTNG_RING_BUFFER_COMPAT_INSTANCE_ID \
5594698f JD	391	LTTNG_RING_BUFFER_INSTANCE_ID
3b731ab1 JD	392	#endif /* CONFIG_COMPAT */
3b731ab1 JD	393
e8951e63	394	#endif /* _LTTNG_ABI_H */