[lttng-tools.git] / src / common / lttng-kernel.hpp

/*
 * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 * Copyright (C) 2011 EfficiOS Inc.
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 */

#ifndef _LTTNG_KERNEL_H
#define _LTTNG_KERNEL_H

#include <stdint.h>
#include <common/macros.hpp>
#include <lttng/constant.h>
#include <lttng/event.h>

#define LTTNG_KERNEL_ABI_SYM_NAME_LEN  256
#define LTTNG_KERNEL_ABI_MAX_UPROBE_NUM  32
#define LTTNG_KERNEL_ABI_SESSION_NAME_LEN	256
#define LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN	26

/*
 * LTTng DebugFS ABI structures.
 *
 * This is the kernel ABI copied from lttng-modules tree.
 */

enum lttng_kernel_abi_instrumentation {
	LTTNG_KERNEL_ABI_ALL           = -1,   /* Used within lttng-tools */
	LTTNG_KERNEL_ABI_TRACEPOINT    = 0,
	LTTNG_KERNEL_ABI_KPROBE        = 1,
	LTTNG_KERNEL_ABI_FUNCTION      = 2,
	LTTNG_KERNEL_ABI_KRETPROBE     = 3,
	LTTNG_KERNEL_ABI_NOOP          = 4,    /* not hooked */
	LTTNG_KERNEL_ABI_SYSCALL       = 5,
	LTTNG_KERNEL_ABI_UPROBE        = 6,
};

enum lttng_kernel_abi_context_type {
	LTTNG_KERNEL_ABI_CONTEXT_PID            = 0,
	LTTNG_KERNEL_ABI_CONTEXT_PERF_CPU_COUNTER = 1,
	LTTNG_KERNEL_ABI_CONTEXT_PROCNAME       = 2,
	LTTNG_KERNEL_ABI_CONTEXT_PRIO           = 3,
	LTTNG_KERNEL_ABI_CONTEXT_NICE           = 4,
	LTTNG_KERNEL_ABI_CONTEXT_VPID           = 5,
	LTTNG_KERNEL_ABI_CONTEXT_TID            = 6,
	LTTNG_KERNEL_ABI_CONTEXT_VTID           = 7,
	LTTNG_KERNEL_ABI_CONTEXT_PPID           = 8,
	LTTNG_KERNEL_ABI_CONTEXT_VPPID          = 9,
	LTTNG_KERNEL_ABI_CONTEXT_HOSTNAME       = 10,
	LTTNG_KERNEL_ABI_CONTEXT_CPU_ID         = 11,
	LTTNG_KERNEL_ABI_CONTEXT_INTERRUPTIBLE  = 12,
	LTTNG_KERNEL_ABI_CONTEXT_PREEMPTIBLE    = 13,
	LTTNG_KERNEL_ABI_CONTEXT_NEED_RESCHEDULE = 14,
	LTTNG_KERNEL_ABI_CONTEXT_MIGRATABLE     = 15,
	LTTNG_KERNEL_ABI_CONTEXT_CALLSTACK_KERNEL = 16,
	LTTNG_KERNEL_ABI_CONTEXT_CALLSTACK_USER   = 17,
	LTTNG_KERNEL_ABI_CONTEXT_CGROUP_NS      = 18,
	LTTNG_KERNEL_ABI_CONTEXT_IPC_NS         = 19,
	LTTNG_KERNEL_ABI_CONTEXT_MNT_NS         = 20,
	LTTNG_KERNEL_ABI_CONTEXT_NET_NS         = 21,
	LTTNG_KERNEL_ABI_CONTEXT_PID_NS         = 22,
	LTTNG_KERNEL_ABI_CONTEXT_USER_NS        = 23,
	LTTNG_KERNEL_ABI_CONTEXT_UTS_NS         = 24,
	LTTNG_KERNEL_ABI_CONTEXT_UID            = 25,
	LTTNG_KERNEL_ABI_CONTEXT_EUID           = 26,
	LTTNG_KERNEL_ABI_CONTEXT_SUID           = 27,
	LTTNG_KERNEL_ABI_CONTEXT_GID            = 28,
	LTTNG_KERNEL_ABI_CONTEXT_EGID           = 29,
	LTTNG_KERNEL_ABI_CONTEXT_SGID           = 30,
	LTTNG_KERNEL_ABI_CONTEXT_VUID           = 31,
	LTTNG_KERNEL_ABI_CONTEXT_VEUID          = 32,
	LTTNG_KERNEL_ABI_CONTEXT_VSUID          = 33,
	LTTNG_KERNEL_ABI_CONTEXT_VGID           = 34,
	LTTNG_KERNEL_ABI_CONTEXT_VEGID          = 35,
	LTTNG_KERNEL_ABI_CONTEXT_VSGID          = 36,
	LTTNG_KERNEL_ABI_CONTEXT_TIME_NS        = 37,
};

/* Perf counter attributes */
struct lttng_kernel_abi_perf_counter_ctx {
	uint32_t type;
	uint64_t config;
	char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
} LTTNG_PACKED;

/* Event/Channel context */
#define LTTNG_KERNEL_ABI_CONTEXT_PADDING1  16
#define LTTNG_KERNEL_ABI_CONTEXT_PADDING2  LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
struct lttng_kernel_abi_context {
	enum lttng_kernel_abi_context_type ctx;
	char padding[LTTNG_KERNEL_ABI_CONTEXT_PADDING1];

	union {
		struct lttng_kernel_abi_perf_counter_ctx perf_counter;
		char padding[LTTNG_KERNEL_ABI_CONTEXT_PADDING2];
	} u;
} LTTNG_PACKED;

struct lttng_kernel_abi_kretprobe {
	uint64_t addr;

	uint64_t offset;
	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
} LTTNG_PACKED;

/*
 * Either addr is used, or symbol_name and offset.
 */
struct lttng_kernel_abi_kprobe {
	uint64_t addr;

	uint64_t offset;
	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
} LTTNG_PACKED;

struct lttng_kernel_abi_uprobe {
	int fd;
} LTTNG_PACKED;

struct lttng_kernel_abi_event_callsite_uprobe {
	uint64_t offset;
} LTTNG_PACKED;

struct lttng_kernel_abi_event_callsite {
	union {
		struct lttng_kernel_abi_event_callsite_uprobe uprobe;
	} u;
} LTTNG_PACKED;

enum lttng_kernel_abi_syscall_entryexit {
	LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT	= 0,
	LTTNG_KERNEL_ABI_SYSCALL_ENTRY	= 1,
	LTTNG_KERNEL_ABI_SYSCALL_EXIT	= 2,
};

enum lttng_kernel_abi_syscall_abi {
	LTTNG_KERNEL_ABI_SYSCALL_ABI_ALL	= 0,
	LTTNG_KERNEL_ABI_SYSCALL_ABI_NATIVE = 1,
	LTTNG_KERNEL_ABI_SYSCALL_ABI_COMPAT = 2,
};

enum lttng_kernel_abi_syscall_match {
	LTTNG_KERNEL_ABI_SYSCALL_MATCH_NAME = 0,
	LTTNG_KERNEL_ABI_SYSCALL_MATCH_NR	= 1,
};

struct lttng_kernel_abi_syscall {
	uint8_t entryexit;	/* enum lttng_kernel_abi_syscall_entryexit */
	uint8_t abi;		/* enum lttng_kernel_abi_syscall_abi */
	uint8_t match;		/* enum lttng_kernel_abi_syscall_match */
	uint8_t padding;
	uint32_t nr;		/* For LTTNG_SYSCALL_MATCH_NR */
} LTTNG_PACKED;

/* Function tracer */
struct lttng_kernel_abi_function {
	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
} LTTNG_PACKED;

#define LTTNG_KERNEL_ABI_EVENT_PADDING1    8
#define LTTNG_KERNEL_ABI_EVENT_PADDING2    LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
struct lttng_kernel_abi_event {
	char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
	enum lttng_kernel_abi_instrumentation instrumentation;
	uint64_t token;
	char padding[LTTNG_KERNEL_ABI_EVENT_PADDING1];

	/* Per instrumentation type configuration */
	union {
		struct lttng_kernel_abi_kretprobe kretprobe;
		struct lttng_kernel_abi_kprobe kprobe;
		struct lttng_kernel_abi_function ftrace;
		struct lttng_kernel_abi_uprobe uprobe;
		struct lttng_kernel_abi_syscall syscall;
		char padding[LTTNG_KERNEL_ABI_EVENT_PADDING2];
	} u;
} LTTNG_PACKED;

#define LTTNG_KERNEL_ABI_EVENT_NOTIFIER_PADDING	32
struct lttng_kernel_abi_event_notifier {
	struct lttng_kernel_abi_event event;
	uint64_t error_counter_idx;

	char padding[LTTNG_KERNEL_ABI_EVENT_NOTIFIER_PADDING];
} LTTNG_PACKED;

#define LTTNG_KERNEL_ABI_COUNTER_DIMENSION_MAX      4

enum lttng_kernel_abi_counter_arithmetic {
	LTTNG_KERNEL_ABI_COUNTER_ARITHMETIC_MODULAR = 0,
};

enum lttng_kernel_abi_counter_bitness {
	LTTNG_KERNEL_ABI_COUNTER_BITNESS_32 = 0,
	LTTNG_KERNEL_ABI_COUNTER_BITNESS_64 = 1,
};

struct lttng_kernel_abi_counter_dimension {
	uint64_t size;
	uint64_t underflow_index;
	uint64_t overflow_index;
	uint8_t has_underflow;
	uint8_t has_overflow;
} LTTNG_PACKED;

#define LTTNG_KERNEL_ABI_COUNTER_CONF_PADDING1      67
struct lttng_kernel_abi_counter_conf {
	uint32_t arithmetic;	/* enum lttng_kernel_abi_counter_arithmetic */
	uint32_t bitness;	/* enum lttng_kernel_abi_counter_bitness */
	uint32_t number_dimensions;
	int64_t global_sum_step;
	struct lttng_kernel_abi_counter_dimension dimensions[LTTNG_KERNEL_ABI_COUNTER_DIMENSION_MAX];
	uint8_t coalesce_hits;
	char padding[LTTNG_KERNEL_ABI_COUNTER_CONF_PADDING1];
} LTTNG_PACKED;

struct lttng_kernel_abi_counter_index {
	uint32_t number_dimensions;
	uint64_t dimension_indexes[LTTNG_KERNEL_ABI_COUNTER_DIMENSION_MAX];
} LTTNG_PACKED;

struct lttng_kernel_abi_counter_value {
	int64_t value;
	uint8_t underflow;
	uint8_t overflow;
} LTTNG_PACKED;

#define LTTNG_KERNEL_ABI_COUNTER_READ_PADDING 32
struct lttng_kernel_abi_counter_read {
	struct lttng_kernel_abi_counter_index index;
	int32_t cpu;	/* -1 for global counter, >= 0 for specific cpu. */
	struct lttng_kernel_abi_counter_value value;	/* output */
	char padding[LTTNG_KERNEL_ABI_COUNTER_READ_PADDING];
} LTTNG_PACKED;

#define LTTNG_KERNEL_ABI_COUNTER_AGGREGATE_PADDING 32
struct lttng_kernel_abi_counter_aggregate {
	struct lttng_kernel_abi_counter_index index;
	struct lttng_kernel_abi_counter_value value;	/* output */
	char padding[LTTNG_KERNEL_ABI_COUNTER_AGGREGATE_PADDING];
} LTTNG_PACKED;

#define LTTNG_KERNEL_ABI_COUNTER_CLEAR_PADDING 32
struct lttng_kernel_abi_counter_clear {
	struct lttng_kernel_abi_counter_index index;
	char padding[LTTNG_KERNEL_ABI_COUNTER_CLEAR_PADDING];
} LTTNG_PACKED;

#define LTTNG_KERNEL_ABI_EVENT_NOTIFIER_NOTIFICATION_PADDING 32
struct lttng_kernel_abi_event_notifier_notification {
	uint64_t token;
	uint16_t capture_buf_size;
	char padding[LTTNG_KERNEL_ABI_EVENT_NOTIFIER_NOTIFICATION_PADDING];
} LTTNG_PACKED;

#define LTTNG_KERNEL_ABI_CAPTURE_BYTECODE_MAX_LEN		65536
struct lttng_kernel_abi_capture_bytecode {
	uint32_t len;
	uint32_t reloc_offset;
	uint64_t seqnum;
	char data[0];
} LTTNG_PACKED;

struct lttng_kernel_abi_tracer_version {
	uint32_t major;
	uint32_t minor;
	uint32_t patchlevel;
} LTTNG_PACKED;

struct lttng_kernel_abi_tracer_abi_version {
	uint32_t major;
	uint32_t minor;
} LTTNG_PACKED;

struct lttng_kernel_abi_syscall_mask {
	uint32_t len;	/* in bits */
	char mask[];
} LTTNG_PACKED;

/*
 * kernel channel
 */
#define LTTNG_KERNEL_ABI_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32
struct lttng_kernel_abi_channel {
	uint64_t subbuf_size;               /* bytes */
	uint64_t num_subbuf;                /* power of 2 */
	unsigned int switch_timer_interval; /* usec */
	unsigned int read_timer_interval;   /* usec */
	enum lttng_event_output output;     /* splice, mmap */

	int overwrite;                      /* 1: overwrite, 0: discard */
	char padding[LTTNG_KERNEL_ABI_CHANNEL_PADDING1];
} LTTNG_PACKED;

#define KERNEL_FILTER_BYTECODE_MAX_LEN		65536
struct lttng_kernel_abi_filter_bytecode {
	uint32_t len;
	uint32_t reloc_offset;
	uint64_t seqnum;
	char data[0];
} LTTNG_PACKED;

/*
 * kernel session name
 */
struct lttng_kernel_abi_session_name {
	char name[LTTNG_KERNEL_ABI_SESSION_NAME_LEN];
} LTTNG_PACKED;

/*
 * kernel session creation datetime
 */
struct lttng_kernel_abi_session_creation_time {
	char iso8601[LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN];
} LTTNG_PACKED;

enum lttng_kernel_abi_tracker_type {
	LTTNG_KERNEL_ABI_TRACKER_UNKNOWN		= -1,

	LTTNG_KERNEL_ABI_TRACKER_PID		= 0,
	LTTNG_KERNEL_ABI_TRACKER_VPID		= 1,
	LTTNG_KERNEL_ABI_TRACKER_UID		= 2,
	LTTNG_KERNEL_ABI_TRACKER_VUID		= 3,
	LTTNG_KERNEL_ABI_TRACKER_GID		= 4,
	LTTNG_KERNEL_ABI_TRACKER_VGID		= 5,
};

struct lttng_kernel_abi_tracker_args {
	enum lttng_kernel_abi_tracker_type type;
	int32_t id;
};

#endif /* _LTTNG_KERNEL_H */
Commit	Line	Data
93128a92	1	/*
ab5be9fa	2	* Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
21cf9b6b	3	* Copyright (C) 2011 EfficiOS Inc.
93128a92	4	*
ab5be9fa	5	* SPDX-License-Identifier: GPL-2.0-only
93128a92	6	*
93128a92 DG	7	*/
	8
	9	#ifndef _LTTNG_KERNEL_H
	10	#define _LTTNG_KERNEL_H
	11
e848fc76	12	#include <stdint.h>
c9e313bc	13	#include <common/macros.hpp>
0ef03255 FD	14	#include <lttng/constant.h>
0ef03255 FD	15	#include <lttng/event.h>
e848fc76	16
b8e2fb80 FD	17	#define LTTNG_KERNEL_ABI_SYM_NAME_LEN 256
	18	#define LTTNG_KERNEL_ABI_MAX_UPROBE_NUM 32
	19	#define LTTNG_KERNEL_ABI_SESSION_NAME_LEN 256
	20	#define LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN 26
9cb98350	21
7d29a247 DG	22	/*
	23	* LTTng DebugFS ABI structures.
	24	*
	25	* This is the kernel ABI copied from lttng-modules tree.
	26	*/
	27
b8e2fb80 FD	28	enum lttng_kernel_abi_instrumentation {
	29	LTTNG_KERNEL_ABI_ALL = -1, /* Used within lttng-tools */
	30	LTTNG_KERNEL_ABI_TRACEPOINT = 0,
	31	LTTNG_KERNEL_ABI_KPROBE = 1,
	32	LTTNG_KERNEL_ABI_FUNCTION = 2,
	33	LTTNG_KERNEL_ABI_KRETPROBE = 3,
	34	LTTNG_KERNEL_ABI_NOOP = 4, /* not hooked */
	35	LTTNG_KERNEL_ABI_SYSCALL = 5,
	36	LTTNG_KERNEL_ABI_UPROBE = 6,
e6ddca71 DG	37	};
e6ddca71 DG	38
b8e2fb80 FD	39	enum lttng_kernel_abi_context_type {
	40	LTTNG_KERNEL_ABI_CONTEXT_PID = 0,
	41	LTTNG_KERNEL_ABI_CONTEXT_PERF_CPU_COUNTER = 1,
	42	LTTNG_KERNEL_ABI_CONTEXT_PROCNAME = 2,
	43	LTTNG_KERNEL_ABI_CONTEXT_PRIO = 3,
	44	LTTNG_KERNEL_ABI_CONTEXT_NICE = 4,
	45	LTTNG_KERNEL_ABI_CONTEXT_VPID = 5,
	46	LTTNG_KERNEL_ABI_CONTEXT_TID = 6,
	47	LTTNG_KERNEL_ABI_CONTEXT_VTID = 7,
	48	LTTNG_KERNEL_ABI_CONTEXT_PPID = 8,
	49	LTTNG_KERNEL_ABI_CONTEXT_VPPID = 9,
	50	LTTNG_KERNEL_ABI_CONTEXT_HOSTNAME = 10,
	51	LTTNG_KERNEL_ABI_CONTEXT_CPU_ID = 11,
	52	LTTNG_KERNEL_ABI_CONTEXT_INTERRUPTIBLE = 12,
	53	LTTNG_KERNEL_ABI_CONTEXT_PREEMPTIBLE = 13,
	54	LTTNG_KERNEL_ABI_CONTEXT_NEED_RESCHEDULE = 14,
	55	LTTNG_KERNEL_ABI_CONTEXT_MIGRATABLE = 15,
	56	LTTNG_KERNEL_ABI_CONTEXT_CALLSTACK_KERNEL = 16,
	57	LTTNG_KERNEL_ABI_CONTEXT_CALLSTACK_USER = 17,
	58	LTTNG_KERNEL_ABI_CONTEXT_CGROUP_NS = 18,
	59	LTTNG_KERNEL_ABI_CONTEXT_IPC_NS = 19,
	60	LTTNG_KERNEL_ABI_CONTEXT_MNT_NS = 20,
	61	LTTNG_KERNEL_ABI_CONTEXT_NET_NS = 21,
	62	LTTNG_KERNEL_ABI_CONTEXT_PID_NS = 22,
	63	LTTNG_KERNEL_ABI_CONTEXT_USER_NS = 23,
	64	LTTNG_KERNEL_ABI_CONTEXT_UTS_NS = 24,
	65	LTTNG_KERNEL_ABI_CONTEXT_UID = 25,
	66	LTTNG_KERNEL_ABI_CONTEXT_EUID = 26,
	67	LTTNG_KERNEL_ABI_CONTEXT_SUID = 27,
	68	LTTNG_KERNEL_ABI_CONTEXT_GID = 28,
	69	LTTNG_KERNEL_ABI_CONTEXT_EGID = 29,
	70	LTTNG_KERNEL_ABI_CONTEXT_SGID = 30,
	71	LTTNG_KERNEL_ABI_CONTEXT_VUID = 31,
	72	LTTNG_KERNEL_ABI_CONTEXT_VEUID = 32,
	73	LTTNG_KERNEL_ABI_CONTEXT_VSUID = 33,
	74	LTTNG_KERNEL_ABI_CONTEXT_VGID = 34,
	75	LTTNG_KERNEL_ABI_CONTEXT_VEGID = 35,
	76	LTTNG_KERNEL_ABI_CONTEXT_VSGID = 36,
	77	LTTNG_KERNEL_ABI_CONTEXT_TIME_NS = 37,
7d29a247 DG	78	};
	79
	80	/* Perf counter attributes */
b8e2fb80	81	struct lttng_kernel_abi_perf_counter_ctx {
7d29a247 DG	82	uint32_t type;
7d29a247 DG	83	uint64_t config;
b8e2fb80	84	char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
113373e4	85	} LTTNG_PACKED;
7d29a247 DG	86
7d29a247 DG	87	/* Event/Channel context */
b8e2fb80 FD	88	#define LTTNG_KERNEL_ABI_CONTEXT_PADDING1 16
	89	#define LTTNG_KERNEL_ABI_CONTEXT_PADDING2 LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
	90	struct lttng_kernel_abi_context {
	91	enum lttng_kernel_abi_context_type ctx;
	92	char padding[LTTNG_KERNEL_ABI_CONTEXT_PADDING1];
dbbb3ec5	93
7d29a247	94	union {
b8e2fb80 FD	95	struct lttng_kernel_abi_perf_counter_ctx perf_counter;
b8e2fb80 FD	96	char padding[LTTNG_KERNEL_ABI_CONTEXT_PADDING2];
7d29a247	97	} u;
113373e4	98	} LTTNG_PACKED;
9cb98350	99
b8e2fb80	100	struct lttng_kernel_abi_kretprobe {
8f0d098b MD	101	uint64_t addr;
	102
	103	uint64_t offset;
b8e2fb80	104	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
113373e4	105	} LTTNG_PACKED;
8f0d098b	106
93128a92	107	/*
7d29a247	108	* Either addr is used, or symbol_name and offset.
93128a92	109	*/
b8e2fb80	110	struct lttng_kernel_abi_kprobe {
7d29a247 DG	111	uint64_t addr;
	112
	113	uint64_t offset;
b8e2fb80	114	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
113373e4	115	} LTTNG_PACKED;
9cb98350	116
b8e2fb80	117	struct lttng_kernel_abi_uprobe {
1ab8c2ad FD	118	int fd;
	119	} LTTNG_PACKED;
	120
b8e2fb80	121	struct lttng_kernel_abi_event_callsite_uprobe {
1ab8c2ad FD	122	uint64_t offset;
	123	} LTTNG_PACKED;
	124
b8e2fb80	125	struct lttng_kernel_abi_event_callsite {
1ab8c2ad	126	union {
b8e2fb80	127	struct lttng_kernel_abi_event_callsite_uprobe uprobe;
1ab8c2ad FD	128	} u;
	129	} LTTNG_PACKED;
	130
b8e2fb80 FD	131	enum lttng_kernel_abi_syscall_entryexit {
	132	LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT = 0,
	133	LTTNG_KERNEL_ABI_SYSCALL_ENTRY = 1,
	134	LTTNG_KERNEL_ABI_SYSCALL_EXIT = 2,
c863e5a6 FD	135	};
c863e5a6 FD	136
b8e2fb80 FD	137	enum lttng_kernel_abi_syscall_abi {
	138	LTTNG_KERNEL_ABI_SYSCALL_ABI_ALL = 0,
	139	LTTNG_KERNEL_ABI_SYSCALL_ABI_NATIVE = 1,
	140	LTTNG_KERNEL_ABI_SYSCALL_ABI_COMPAT = 2,
c863e5a6 FD	141	};
c863e5a6 FD	142
b8e2fb80 FD	143	enum lttng_kernel_abi_syscall_match {
	144	LTTNG_KERNEL_ABI_SYSCALL_MATCH_NAME = 0,
	145	LTTNG_KERNEL_ABI_SYSCALL_MATCH_NR = 1,
c863e5a6 FD	146	};
c863e5a6 FD	147
b8e2fb80 FD	148	struct lttng_kernel_abi_syscall {
	149	uint8_t entryexit; /* enum lttng_kernel_abi_syscall_entryexit */
	150	uint8_t abi; /* enum lttng_kernel_abi_syscall_abi */
	151	uint8_t match; /* enum lttng_kernel_abi_syscall_match */
c863e5a6 FD	152	uint8_t padding;
	153	uint32_t nr; /* For LTTNG_SYSCALL_MATCH_NR */
	154	} LTTNG_PACKED;
	155
f05b5f07	156	/* Function tracer */
b8e2fb80 FD	157	struct lttng_kernel_abi_function {
b8e2fb80 FD	158	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
113373e4	159	} LTTNG_PACKED;
93128a92	160
b8e2fb80 FD	161	#define LTTNG_KERNEL_ABI_EVENT_PADDING1 8
	162	#define LTTNG_KERNEL_ABI_EVENT_PADDING2 LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
	163	struct lttng_kernel_abi_event {
	164	char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
	165	enum lttng_kernel_abi_instrumentation instrumentation;
8e49ca12	166	uint64_t token;
b8e2fb80	167	char padding[LTTNG_KERNEL_ABI_EVENT_PADDING1];
dbbb3ec5	168
9cb98350 JD	169	/* Per instrumentation type configuration */
9cb98350 JD	170	union {
b8e2fb80 FD	171	struct lttng_kernel_abi_kretprobe kretprobe;
	172	struct lttng_kernel_abi_kprobe kprobe;
	173	struct lttng_kernel_abi_function ftrace;
	174	struct lttng_kernel_abi_uprobe uprobe;
	175	struct lttng_kernel_abi_syscall syscall;
	176	char padding[LTTNG_KERNEL_ABI_EVENT_PADDING2];
9cb98350	177	} u;
113373e4	178	} LTTNG_PACKED;
93128a92	179
b8e2fb80 FD	180	#define LTTNG_KERNEL_ABI_EVENT_NOTIFIER_PADDING 32
	181	struct lttng_kernel_abi_event_notifier {
	182	struct lttng_kernel_abi_event event;
90aa04a1 FD	183	uint64_t error_counter_idx;
90aa04a1 FD	184
b8e2fb80	185	char padding[LTTNG_KERNEL_ABI_EVENT_NOTIFIER_PADDING];
cfb1c9bc JR	186	} LTTNG_PACKED;
cfb1c9bc JR	187
b8e2fb80	188	#define LTTNG_KERNEL_ABI_COUNTER_DIMENSION_MAX 4
90aa04a1	189
b8e2fb80 FD	190	enum lttng_kernel_abi_counter_arithmetic {
b8e2fb80 FD	191	LTTNG_KERNEL_ABI_COUNTER_ARITHMETIC_MODULAR = 0,
90aa04a1 FD	192	};
90aa04a1 FD	193
b8e2fb80 FD	194	enum lttng_kernel_abi_counter_bitness {
	195	LTTNG_KERNEL_ABI_COUNTER_BITNESS_32 = 0,
	196	LTTNG_KERNEL_ABI_COUNTER_BITNESS_64 = 1,
90aa04a1 FD	197	};
90aa04a1 FD	198
b8e2fb80	199	struct lttng_kernel_abi_counter_dimension {
90aa04a1 FD	200	uint64_t size;
	201	uint64_t underflow_index;
	202	uint64_t overflow_index;
	203	uint8_t has_underflow;
	204	uint8_t has_overflow;
	205	} LTTNG_PACKED;
	206
b8e2fb80 FD	207	#define LTTNG_KERNEL_ABI_COUNTER_CONF_PADDING1 67
	208	struct lttng_kernel_abi_counter_conf {
	209	uint32_t arithmetic; /* enum lttng_kernel_abi_counter_arithmetic */
	210	uint32_t bitness; /* enum lttng_kernel_abi_counter_bitness */
90aa04a1 FD	211	uint32_t number_dimensions;
90aa04a1 FD	212	int64_t global_sum_step;
b8e2fb80	213	struct lttng_kernel_abi_counter_dimension dimensions[LTTNG_KERNEL_ABI_COUNTER_DIMENSION_MAX];
90aa04a1	214	uint8_t coalesce_hits;
b8e2fb80	215	char padding[LTTNG_KERNEL_ABI_COUNTER_CONF_PADDING1];
90aa04a1 FD	216	} LTTNG_PACKED;
90aa04a1 FD	217
b8e2fb80	218	struct lttng_kernel_abi_counter_index {
90aa04a1	219	uint32_t number_dimensions;
b8e2fb80	220	uint64_t dimension_indexes[LTTNG_KERNEL_ABI_COUNTER_DIMENSION_MAX];
90aa04a1 FD	221	} LTTNG_PACKED;
90aa04a1 FD	222
b8e2fb80	223	struct lttng_kernel_abi_counter_value {
90aa04a1 FD	224	int64_t value;
	225	uint8_t underflow;
	226	uint8_t overflow;
	227	} LTTNG_PACKED;
	228
b8e2fb80 FD	229	#define LTTNG_KERNEL_ABI_COUNTER_READ_PADDING 32
	230	struct lttng_kernel_abi_counter_read {
	231	struct lttng_kernel_abi_counter_index index;
90aa04a1	232	int32_t cpu; /* -1 for global counter, >= 0 for specific cpu. */
b8e2fb80 FD	233	struct lttng_kernel_abi_counter_value value; /* output */
b8e2fb80 FD	234	char padding[LTTNG_KERNEL_ABI_COUNTER_READ_PADDING];
90aa04a1 FD	235	} LTTNG_PACKED;
90aa04a1 FD	236
b8e2fb80 FD	237	#define LTTNG_KERNEL_ABI_COUNTER_AGGREGATE_PADDING 32
	238	struct lttng_kernel_abi_counter_aggregate {
	239	struct lttng_kernel_abi_counter_index index;
	240	struct lttng_kernel_abi_counter_value value; /* output */
	241	char padding[LTTNG_KERNEL_ABI_COUNTER_AGGREGATE_PADDING];
90aa04a1 FD	242	} LTTNG_PACKED;
90aa04a1 FD	243
b8e2fb80 FD	244	#define LTTNG_KERNEL_ABI_COUNTER_CLEAR_PADDING 32
	245	struct lttng_kernel_abi_counter_clear {
	246	struct lttng_kernel_abi_counter_index index;
	247	char padding[LTTNG_KERNEL_ABI_COUNTER_CLEAR_PADDING];
90aa04a1 FD	248	} LTTNG_PACKED;
90aa04a1 FD	249
b8e2fb80 FD	250	#define LTTNG_KERNEL_ABI_EVENT_NOTIFIER_NOTIFICATION_PADDING 32
b8e2fb80 FD	251	struct lttng_kernel_abi_event_notifier_notification {
cfb1c9bc	252	uint64_t token;
bbd6675c	253	uint16_t capture_buf_size;
b8e2fb80	254	char padding[LTTNG_KERNEL_ABI_EVENT_NOTIFIER_NOTIFICATION_PADDING];
cfb1c9bc JR	255	} LTTNG_PACKED;
cfb1c9bc JR	256
b8e2fb80 FD	257	#define LTTNG_KERNEL_ABI_CAPTURE_BYTECODE_MAX_LEN 65536
b8e2fb80 FD	258	struct lttng_kernel_abi_capture_bytecode {
bbd6675c JR	259	uint32_t len;
	260	uint32_t reloc_offset;
	261	uint64_t seqnum;
	262	char data[0];
	263	} LTTNG_PACKED;
	264
b8e2fb80	265	struct lttng_kernel_abi_tracer_version {
a62a6556 MD	266	uint32_t major;
a62a6556 MD	267	uint32_t minor;
9cb98350	268	uint32_t patchlevel;
113373e4	269	} LTTNG_PACKED;
93128a92	270
b8e2fb80	271	struct lttng_kernel_abi_tracer_abi_version {
c052142c MD	272	uint32_t major;
	273	uint32_t minor;
	274	} LTTNG_PACKED;
	275
b8e2fb80	276	struct lttng_kernel_abi_syscall_mask {
46820c8b	277	uint32_t len; /* in bits */
e80c3634 MD	278	char mask[];
	279	} LTTNG_PACKED;
	280
4dbc372b JD	281	/*
	282	* kernel channel
	283	*/
b8e2fb80 FD	284	#define LTTNG_KERNEL_ABI_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32
b8e2fb80 FD	285	struct lttng_kernel_abi_channel {
4dbc372b JD	286	uint64_t subbuf_size; /* bytes */
	287	uint64_t num_subbuf; /* power of 2 */
	288	unsigned int switch_timer_interval; /* usec */
	289	unsigned int read_timer_interval; /* usec */
	290	enum lttng_event_output output; /* splice, mmap */
	291
	292	int overwrite; /* 1: overwrite, 0: discard */
b8e2fb80	293	char padding[LTTNG_KERNEL_ABI_CHANNEL_PADDING1];
113373e4	294	} LTTNG_PACKED;
d0254c7c	295
00a62084	296	#define KERNEL_FILTER_BYTECODE_MAX_LEN 65536
b8e2fb80	297	struct lttng_kernel_abi_filter_bytecode {
00a62084 MD	298	uint32_t len;
	299	uint32_t reloc_offset;
	300	uint64_t seqnum;
	301	char data[0];
	302	} LTTNG_PACKED;
	303
8ff4109e JR	304	/*
	305	* kernel session name
	306	*/
b8e2fb80 FD	307	struct lttng_kernel_abi_session_name {
b8e2fb80 FD	308	char name[LTTNG_KERNEL_ABI_SESSION_NAME_LEN];
8ff4109e JR	309	} LTTNG_PACKED;
8ff4109e JR	310
e04b2181 JR	311	/*
	312	* kernel session creation datetime
	313	*/
b8e2fb80 FD	314	struct lttng_kernel_abi_session_creation_time {
b8e2fb80 FD	315	char iso8601[LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN];
e04b2181 JR	316	} LTTNG_PACKED;
e04b2181 JR	317
b8e2fb80 FD	318	enum lttng_kernel_abi_tracker_type {
b8e2fb80 FD	319	LTTNG_KERNEL_ABI_TRACKER_UNKNOWN = -1,
d01c0e56	320
b8e2fb80 FD	321	LTTNG_KERNEL_ABI_TRACKER_PID = 0,
	322	LTTNG_KERNEL_ABI_TRACKER_VPID = 1,
	323	LTTNG_KERNEL_ABI_TRACKER_UID = 2,
	324	LTTNG_KERNEL_ABI_TRACKER_VUID = 3,
	325	LTTNG_KERNEL_ABI_TRACKER_GID = 4,
	326	LTTNG_KERNEL_ABI_TRACKER_VGID = 5,
d01c0e56 MD	327	};
d01c0e56 MD	328
b8e2fb80 FD	329	struct lttng_kernel_abi_tracker_args {
b8e2fb80 FD	330	enum lttng_kernel_abi_tracker_type type;
d01c0e56 MD	331	int32_t id;
	332	};
	333
93128a92	334	#endif /* _LTTNG_KERNEL_H */