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

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

#ifndef _LTTNG_ABI_H
#define _LTTNG_ABI_H

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

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

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

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

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

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

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,
	LTTNG_KERNEL_SYSCALL_EXIT	= 2,
};

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

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

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

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

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

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

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

#define LTTNG_KERNEL_COUNTER_DIMENSION_MAX	4

enum lttng_kernel_counter_arithmetic {
	LTTNG_KERNEL_COUNTER_ARITHMETIC_MODULAR = 0,
};

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

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

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

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

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

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

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

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

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

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

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

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

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

enum lttng_kernel_calibrate_type {
	LTTNG_KERNEL_CALIBRATE_KRETPROBE,
};

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

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

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

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

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

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

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

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

enum lttng_kernel_tracker_type {
	LTTNG_KERNEL_TRACKER_UNKNOWN		= -1,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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

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

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

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