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

#ifndef _LTTNG_UST_ABI_H
#define _LTTNG_UST_ABI_H

/*
 * lttng/ust-abi.h
 *
 * LTTng-UST ABI header
 *
 * Copyright 2010-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <stdint.h>
#include <lttng/ust-compiler.h>

#define LTTNG_UST_SYM_NAME_LEN	256

/* Version for comm protocol between sessiond and ust */
#define LTTNG_UST_COMM_VERSION_MAJOR		2
#define LTTNG_UST_COMM_VERSION_MINOR		1

/* Version for ABI between liblttng-ust, sessiond, consumerd */
#define LTTNG_UST_INTERNAL_MAJOR_VERSION	3
#define LTTNG_UST_INTERNAL_MINOR_VERSION	0
#define LTTNG_UST_INTERNAL_PATCHLEVEL_VERSION	0

enum lttng_ust_instrumentation {
	LTTNG_UST_TRACEPOINT		= 0,
	LTTNG_UST_PROBE			= 1,
	LTTNG_UST_FUNCTION		= 2,
};

enum lttng_ust_loglevel_type {
	LTTNG_UST_LOGLEVEL_ALL		= 0,
	LTTNG_UST_LOGLEVEL_RANGE	= 1,
	LTTNG_UST_LOGLEVEL_SINGLE	= 2,
};

enum lttng_ust_output {
	LTTNG_UST_MMAP		= 0,
};

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

#define LTTNG_UST_CHANNEL_PADDING	LTTNG_UST_SYM_NAME_LEN + 32
struct lttng_ust_channel {
	uint64_t subbuf_size;			/* in bytes */
	uint64_t num_subbuf;
	int overwrite;				/* 1: overwrite, 0: discard */
	unsigned int switch_timer_interval;	/* usecs */
	unsigned int read_timer_interval;	/* usecs */
	enum lttng_ust_output output;		/* output mode */
	char padding[LTTNG_UST_CHANNEL_PADDING];
} LTTNG_PACKED;

#define LTTNG_UST_STREAM_PADDING1	16
#define LTTNG_UST_STREAM_PADDING2	LTTNG_UST_SYM_NAME_LEN + 32
struct lttng_ust_stream {
	char padding[LTTNG_UST_STREAM_PADDING1];

	union {
		char padding[LTTNG_UST_STREAM_PADDING2];
	} u;
} LTTNG_PACKED;

#define LTTNG_UST_EVENT_PADDING1	16
#define LTTNG_UST_EVENT_PADDING2	LTTNG_UST_SYM_NAME_LEN + 32
struct lttng_ust_event {
	enum lttng_ust_instrumentation instrumentation;
	char name[LTTNG_UST_SYM_NAME_LEN];	/* event name */

	enum lttng_ust_loglevel_type loglevel_type;
	int loglevel;	/* value, -1: all */
	char padding[LTTNG_UST_EVENT_PADDING1];

	/* Per instrumentation type configuration */
	union {
		char padding[LTTNG_UST_EVENT_PADDING2];
	} u;
} LTTNG_PACKED;

enum lttng_ust_field_type {
	LTTNG_UST_FIELD_OTHER			= 0,
	LTTNG_UST_FIELD_INTEGER			= 1,
	LTTNG_UST_FIELD_ENUM			= 2,
	LTTNG_UST_FIELD_FLOAT			= 3,
	LTTNG_UST_FIELD_STRING			= 4,
};

#define LTTNG_UST_FIELD_ITER_PADDING		LTTNG_UST_SYM_NAME_LEN + 28
struct lttng_ust_field_iter {
	char event_name[LTTNG_UST_SYM_NAME_LEN];
	char field_name[LTTNG_UST_SYM_NAME_LEN];
	enum lttng_ust_field_type type;
	int loglevel;				/* event loglevel */
	int nowrite;
	char padding[LTTNG_UST_FIELD_ITER_PADDING];
} LTTNG_PACKED;

enum lttng_ust_context_type {
	LTTNG_UST_CONTEXT_VTID			= 0,
	LTTNG_UST_CONTEXT_VPID			= 1,
	LTTNG_UST_CONTEXT_PTHREAD_ID		= 2,
	LTTNG_UST_CONTEXT_PROCNAME		= 3,
};

#define LTTNG_UST_CONTEXT_PADDING1	16
#define LTTNG_UST_CONTEXT_PADDING2	LTTNG_UST_SYM_NAME_LEN + 32
struct lttng_ust_context {
	enum lttng_ust_context_type ctx;
	char padding[LTTNG_UST_CONTEXT_PADDING1];

	union {
		char padding[LTTNG_UST_CONTEXT_PADDING2];
	} u;
} LTTNG_PACKED;

/*
 * Tracer channel attributes.
 */
#define LTTNG_UST_CHANNEL_ATTR_PADDING	LTTNG_UST_SYM_NAME_LEN + 32
struct lttng_ust_channel_attr {
	uint64_t subbuf_size;			/* bytes */
	uint64_t num_subbuf;			/* power of 2 */
	int overwrite;				/* 1: overwrite, 0: discard */
	unsigned int switch_timer_interval;	/* usec */
	unsigned int read_timer_interval;	/* usec */
	enum lttng_ust_output output;		/* splice, mmap */
	char padding[LTTNG_UST_CHANNEL_ATTR_PADDING];
} LTTNG_PACKED;

#define LTTNG_UST_TRACEPOINT_ITER_PADDING	16
struct lttng_ust_tracepoint_iter {
	char name[LTTNG_UST_SYM_NAME_LEN];	/* provider:name */
	int loglevel;
	char padding[LTTNG_UST_TRACEPOINT_ITER_PADDING];
} LTTNG_PACKED;

#define LTTNG_UST_OBJECT_DATA_PADDING		LTTNG_UST_SYM_NAME_LEN + 32
struct lttng_ust_object_data {
	uint64_t memory_map_size;
	int handle;
	int shm_fd;
	int wait_fd;
	char padding[LTTNG_UST_OBJECT_DATA_PADDING];
} LTTNG_PACKED;

enum lttng_ust_calibrate_type {
	LTTNG_UST_CALIBRATE_TRACEPOINT,
};

#define LTTNG_UST_CALIBRATE_PADDING1	16
#define LTTNG_UST_CALIBRATE_PADDING2	LTTNG_UST_SYM_NAME_LEN + 32
struct lttng_ust_calibrate {
	enum lttng_ust_calibrate_type type;	/* type (input) */
	char padding[LTTNG_UST_CALIBRATE_PADDING1];

	union {
		char padding[LTTNG_UST_CALIBRATE_PADDING2];
	} u;
} LTTNG_PACKED;

#define FILTER_BYTECODE_MAX_LEN		65536
#define LTTNG_UST_FILTER_PADDING	32
struct lttng_ust_filter_bytecode {
	uint32_t len;
	uint32_t reloc_offset;
	uint64_t seqnum;
	char padding[LTTNG_UST_FILTER_PADDING];
	char data[0];
} LTTNG_PACKED;

#define _UST_CMD(minor)				(minor)
#define _UST_CMDR(minor, type)			(minor)
#define _UST_CMDW(minor, type)			(minor)

/* Handled by object descriptor */
#define LTTNG_UST_RELEASE			_UST_CMD(0x1)

/* Handled by object cmd */

/* LTTng-UST commands */
#define LTTNG_UST_SESSION			_UST_CMD(0x40)
#define LTTNG_UST_TRACER_VERSION		\
	_UST_CMDR(0x41, struct lttng_ust_tracer_version)
#define LTTNG_UST_TRACEPOINT_LIST		_UST_CMD(0x42)
#define LTTNG_UST_WAIT_QUIESCENT		_UST_CMD(0x43)
#define LTTNG_UST_REGISTER_DONE			_UST_CMD(0x44)
#define LTTNG_UST_TRACEPOINT_FIELD_LIST		_UST_CMD(0x45)

/* Session FD commands */
#define LTTNG_UST_METADATA			\
	_UST_CMDW(0x50, struct lttng_ust_channel)
#define LTTNG_UST_CHANNEL			\
	_UST_CMDW(0x51, struct lttng_ust_channel)
#define LTTNG_UST_SESSION_START			_UST_CMD(0x52)
#define LTTNG_UST_SESSION_STOP			_UST_CMD(0x53)

/* Channel FD commands */
#define LTTNG_UST_STREAM			_UST_CMD(0x60)
#define LTTNG_UST_EVENT			\
	_UST_CMDW(0x61, struct lttng_ust_event)

/* Event and Channel FD commands */
#define LTTNG_UST_CONTEXT			\
	_UST_CMDW(0x70, struct lttng_ust_context)
#define LTTNG_UST_FLUSH_BUFFER			\
	_UST_CMD(0x71)

/* Event, Channel and Session commands */
#define LTTNG_UST_ENABLE			_UST_CMD(0x80)
#define LTTNG_UST_DISABLE			_UST_CMD(0x81)

/* Tracepoint list commands */
#define LTTNG_UST_TRACEPOINT_LIST_GET		_UST_CMD(0x90)
#define LTTNG_UST_TRACEPOINT_FIELD_LIST_GET	_UST_CMD(0x91)

/* Event FD commands */
#define LTTNG_UST_FILTER			_UST_CMD(0xA0)

#define LTTNG_UST_ROOT_HANDLE	0

struct lttng_ust_obj;

union ust_args {
	struct {
		int *shm_fd;
		int *wait_fd;
		uint64_t *memory_map_size;
	} channel;
	struct {
		int *shm_fd;
		int *wait_fd;
		uint64_t *memory_map_size;
	} stream;
	struct {
		struct lttng_ust_field_iter entry;
	} field_list;
};

struct lttng_ust_objd_ops {
	long (*cmd)(int objd, unsigned int cmd, unsigned long arg,
		union ust_args *args, void *owner);
	int (*release)(int objd);
};

/* Create root handle. Always ID 0. */
int lttng_abi_create_root_handle(void);

const struct lttng_ust_objd_ops *objd_ops(int id);
int lttng_ust_objd_unref(int id);

void lttng_ust_abi_exit(void);
void lttng_ust_events_exit(void);
void lttng_ust_objd_table_owner_cleanup(void *owner);

#endif /* _LTTNG_UST_ABI_H */
Commit	Line	Data
9f3fdbc6 MD	1	#ifndef _LTTNG_UST_ABI_H
	2	#define _LTTNG_UST_ABI_H
	3
	4	/*
4318ae1b	5	* lttng/ust-abi.h
9f3fdbc6	6	*
9f3fdbc6 MD	7	* LTTng-UST ABI header
9f3fdbc6 MD	8	*
e92f3e28 MD	9	* Copyright 2010-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	10	*
	11	* Permission is hereby granted, free of charge, to any person obtaining a copy
	12	* of this software and associated documentation files (the "Software"), to deal
	13	* in the Software without restriction, including without limitation the rights
	14	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	15	* copies of the Software, and to permit persons to whom the Software is
	16	* furnished to do so, subject to the following conditions:
a60d70e6	17	*
e92f3e28 MD	18	* The above copyright notice and this permission notice shall be included in
e92f3e28 MD	19	* all copies or substantial portions of the Software.
d2428e87 MD	20	*
	21	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	22	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	23	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	24	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	25	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	26	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	27	* SOFTWARE.
9f3fdbc6 MD	28	*/
9f3fdbc6 MD	29
0a42beb6	30	#include <stdint.h>
b3f60bbf	31	#include <lttng/ust-compiler.h>
0a42beb6	32
f56cd1d5	33	#define LTTNG_UST_SYM_NAME_LEN 256
9f3fdbc6	34
0f4eaec3	35	/* Version for comm protocol between sessiond and ust */
1332bb04	36	#define LTTNG_UST_COMM_VERSION_MAJOR 2
3adfa155	37	#define LTTNG_UST_COMM_VERSION_MINOR 1
b35d179d	38
0f4eaec3 MD	39	/* Version for ABI between liblttng-ust, sessiond, consumerd */
	40	#define LTTNG_UST_INTERNAL_MAJOR_VERSION 3
	41	#define LTTNG_UST_INTERNAL_MINOR_VERSION 0
	42	#define LTTNG_UST_INTERNAL_PATCHLEVEL_VERSION 0
	43
9f3fdbc6	44	enum lttng_ust_instrumentation {
df854e41 MD	45	LTTNG_UST_TRACEPOINT = 0,
	46	LTTNG_UST_PROBE = 1,
	47	LTTNG_UST_FUNCTION = 2,
6b0e60f1 MD	48	};
	49
	50	enum lttng_ust_loglevel_type {
882a56d7 MD	51	LTTNG_UST_LOGLEVEL_ALL = 0,
	52	LTTNG_UST_LOGLEVEL_RANGE = 1,
	53	LTTNG_UST_LOGLEVEL_SINGLE = 2,
9f3fdbc6 MD	54	};
9f3fdbc6 MD	55
9f3fdbc6	56	enum lttng_ust_output {
b35d179d	57	LTTNG_UST_MMAP = 0,
9f3fdbc6 MD	58	};
9f3fdbc6 MD	59
b35d179d	60	struct lttng_ust_tracer_version {
b728d87e MD	61	uint32_t major;
b728d87e MD	62	uint32_t minor;
b35d179d	63	uint32_t patchlevel;
b3f60bbf	64	} LTTNG_PACKED;
9f3fdbc6	65
1332bb04	66	#define LTTNG_UST_CHANNEL_PADDING LTTNG_UST_SYM_NAME_LEN + 32
9f3fdbc6	67	struct lttng_ust_channel {
9f3fdbc6 MD	68	uint64_t subbuf_size; /* in bytes */
9f3fdbc6 MD	69	uint64_t num_subbuf;
b3f60bbf	70	int overwrite; /* 1: overwrite, 0: discard */
9f3fdbc6 MD	71	unsigned int switch_timer_interval; /* usecs */
9f3fdbc6 MD	72	unsigned int read_timer_interval; /* usecs */
b35d179d	73	enum lttng_ust_output output; /* output mode */
1332bb04	74	char padding[LTTNG_UST_CHANNEL_PADDING];
b3f60bbf	75	} LTTNG_PACKED;
9f3fdbc6	76
1332bb04 MD	77	#define LTTNG_UST_STREAM_PADDING1 16
1332bb04 MD	78	#define LTTNG_UST_STREAM_PADDING2 LTTNG_UST_SYM_NAME_LEN + 32
381c0f1e	79	struct lttng_ust_stream {
1332bb04 MD	80	char padding[LTTNG_UST_STREAM_PADDING1];
	81
	82	union {
	83	char padding[LTTNG_UST_STREAM_PADDING2];
	84	} u;
b3f60bbf	85	} LTTNG_PACKED;
381c0f1e	86
1332bb04 MD	87	#define LTTNG_UST_EVENT_PADDING1 16
1332bb04 MD	88	#define LTTNG_UST_EVENT_PADDING2 LTTNG_UST_SYM_NAME_LEN + 32
9f3fdbc6	89	struct lttng_ust_event {
9f3fdbc6	90	enum lttng_ust_instrumentation instrumentation;
6b0e60f1 MD	91	char name[LTTNG_UST_SYM_NAME_LEN]; /* event name */
	92
	93	enum lttng_ust_loglevel_type loglevel_type;
882a56d7	94	int loglevel; /* value, -1: all */
1332bb04	95	char padding[LTTNG_UST_EVENT_PADDING1];
6b0e60f1	96
9f3fdbc6 MD	97	/* Per instrumentation type configuration */
9f3fdbc6 MD	98	union {
1332bb04	99	char padding[LTTNG_UST_EVENT_PADDING2];
9f3fdbc6	100	} u;
b3f60bbf	101	} LTTNG_PACKED;
9f3fdbc6	102
06d4f27e MD	103	enum lttng_ust_field_type {
	104	LTTNG_UST_FIELD_OTHER = 0,
	105	LTTNG_UST_FIELD_INTEGER = 1,
	106	LTTNG_UST_FIELD_ENUM = 2,
	107	LTTNG_UST_FIELD_FLOAT = 3,
	108	LTTNG_UST_FIELD_STRING = 4,
	109	};
	110
38cb8991	111	#define LTTNG_UST_FIELD_ITER_PADDING LTTNG_UST_SYM_NAME_LEN + 28
06d4f27e MD	112	struct lttng_ust_field_iter {
	113	char event_name[LTTNG_UST_SYM_NAME_LEN];
	114	char field_name[LTTNG_UST_SYM_NAME_LEN];
	115	enum lttng_ust_field_type type;
	116	int loglevel; /* event loglevel */
180901e6	117	int nowrite;
06d4f27e	118	char padding[LTTNG_UST_FIELD_ITER_PADDING];
b3f60bbf	119	} LTTNG_PACKED;
06d4f27e	120
9f3fdbc6	121	enum lttng_ust_context_type {
3b402b40	122	LTTNG_UST_CONTEXT_VTID = 0,
c1ef86f0 MD	123	LTTNG_UST_CONTEXT_VPID = 1,
c1ef86f0 MD	124	LTTNG_UST_CONTEXT_PTHREAD_ID = 2,
4847e9bb	125	LTTNG_UST_CONTEXT_PROCNAME = 3,
9f3fdbc6 MD	126	};
9f3fdbc6 MD	127
1332bb04 MD	128	#define LTTNG_UST_CONTEXT_PADDING1 16
1332bb04 MD	129	#define LTTNG_UST_CONTEXT_PADDING2 LTTNG_UST_SYM_NAME_LEN + 32
9f3fdbc6 MD	130	struct lttng_ust_context {
9f3fdbc6 MD	131	enum lttng_ust_context_type ctx;
1332bb04 MD	132	char padding[LTTNG_UST_CONTEXT_PADDING1];
1332bb04 MD	133
9f3fdbc6	134	union {
1332bb04	135	char padding[LTTNG_UST_CONTEXT_PADDING2];
9f3fdbc6	136	} u;
b3f60bbf	137	} LTTNG_PACKED;
9f3fdbc6	138
92462b01 MD	139	/*
	140	* Tracer channel attributes.
	141	*/
1332bb04	142	#define LTTNG_UST_CHANNEL_ATTR_PADDING LTTNG_UST_SYM_NAME_LEN + 32
92462b01	143	struct lttng_ust_channel_attr {
92462b01 MD	144	uint64_t subbuf_size; /* bytes */
92462b01 MD	145	uint64_t num_subbuf; /* power of 2 */
b3f60bbf	146	int overwrite; /* 1: overwrite, 0: discard */
92462b01 MD	147	unsigned int switch_timer_interval; /* usec */
	148	unsigned int read_timer_interval; /* usec */
	149	enum lttng_ust_output output; /* splice, mmap */
1332bb04	150	char padding[LTTNG_UST_CHANNEL_ATTR_PADDING];
b3f60bbf	151	} LTTNG_PACKED;
92462b01	152
1332bb04	153	#define LTTNG_UST_TRACEPOINT_ITER_PADDING 16
cbef6901 MD	154	struct lttng_ust_tracepoint_iter {
cbef6901 MD	155	char name[LTTNG_UST_SYM_NAME_LEN]; /* provider:name */
882a56d7	156	int loglevel;
1332bb04	157	char padding[LTTNG_UST_TRACEPOINT_ITER_PADDING];
b3f60bbf	158	} LTTNG_PACKED;
cbef6901	159
1332bb04	160	#define LTTNG_UST_OBJECT_DATA_PADDING LTTNG_UST_SYM_NAME_LEN + 32
92462b01	161	struct lttng_ust_object_data {
b3f60bbf	162	uint64_t memory_map_size;
92462b01 MD	163	int handle;
	164	int shm_fd;
	165	int wait_fd;
1332bb04	166	char padding[LTTNG_UST_OBJECT_DATA_PADDING];
b3f60bbf	167	} LTTNG_PACKED;
92462b01	168
d9a9a33b MD	169	enum lttng_ust_calibrate_type {
	170	LTTNG_UST_CALIBRATE_TRACEPOINT,
	171	};
	172
1332bb04 MD	173	#define LTTNG_UST_CALIBRATE_PADDING1 16
1332bb04 MD	174	#define LTTNG_UST_CALIBRATE_PADDING2 LTTNG_UST_SYM_NAME_LEN + 32
d9a9a33b MD	175	struct lttng_ust_calibrate {
d9a9a33b MD	176	enum lttng_ust_calibrate_type type; /* type (input) */
1332bb04 MD	177	char padding[LTTNG_UST_CALIBRATE_PADDING1];
	178
	179	union {
	180	char padding[LTTNG_UST_CALIBRATE_PADDING2];
	181	} u;
b3f60bbf	182	} LTTNG_PACKED;
d9a9a33b	183
5b4839a8	184	#define FILTER_BYTECODE_MAX_LEN 65536
a5930599	185	#define LTTNG_UST_FILTER_PADDING 32
2d78951a	186	struct lttng_ust_filter_bytecode {
2734ca65 CB	187	uint32_t len;
2734ca65 CB	188	uint32_t reloc_offset;
3f6fd224	189	uint64_t seqnum;
a5930599	190	char padding[LTTNG_UST_FILTER_PADDING];
2d78951a	191	char data[0];
b3f60bbf	192	} LTTNG_PACKED;
2d78951a	193
9f3fdbc6 MD	194	#define _UST_CMD(minor) (minor)
	195	#define _UST_CMDR(minor, type) (minor)
	196	#define _UST_CMDW(minor, type) (minor)
	197
46050b1a MD	198	/* Handled by object descriptor */
	199	#define LTTNG_UST_RELEASE _UST_CMD(0x1)
	200
	201	/* Handled by object cmd */
	202
9f3fdbc6 MD	203	/* LTTng-UST commands */
	204	#define LTTNG_UST_SESSION _UST_CMD(0x40)
	205	#define LTTNG_UST_TRACER_VERSION \
	206	_UST_CMDR(0x41, struct lttng_ust_tracer_version)
	207	#define LTTNG_UST_TRACEPOINT_LIST _UST_CMD(0x42)
	208	#define LTTNG_UST_WAIT_QUIESCENT _UST_CMD(0x43)
11ff9c7d	209	#define LTTNG_UST_REGISTER_DONE _UST_CMD(0x44)
06d4f27e	210	#define LTTNG_UST_TRACEPOINT_FIELD_LIST _UST_CMD(0x45)
9f3fdbc6	211
46050b1a	212	/* Session FD commands */
9f3fdbc6 MD	213	#define LTTNG_UST_METADATA \
	214	_UST_CMDW(0x50, struct lttng_ust_channel)
	215	#define LTTNG_UST_CHANNEL \
	216	_UST_CMDW(0x51, struct lttng_ust_channel)
	217	#define LTTNG_UST_SESSION_START _UST_CMD(0x52)
	218	#define LTTNG_UST_SESSION_STOP _UST_CMD(0x53)
	219
46050b1a	220	/* Channel FD commands */
9f3fdbc6 MD	221	#define LTTNG_UST_STREAM _UST_CMD(0x60)
	222	#define LTTNG_UST_EVENT \
	223	_UST_CMDW(0x61, struct lttng_ust_event)
	224
46050b1a	225	/* Event and Channel FD commands */
9f3fdbc6 MD	226	#define LTTNG_UST_CONTEXT \
9f3fdbc6 MD	227	_UST_CMDW(0x70, struct lttng_ust_context)
43d330a4	228	#define LTTNG_UST_FLUSH_BUFFER \
43861eab	229	_UST_CMD(0x71)
9f3fdbc6	230
46050b1a	231	/* Event, Channel and Session commands */
9f3fdbc6 MD	232	#define LTTNG_UST_ENABLE _UST_CMD(0x80)
	233	#define LTTNG_UST_DISABLE _UST_CMD(0x81)
	234
51489cad MD	235	/* Tracepoint list commands */
51489cad MD	236	#define LTTNG_UST_TRACEPOINT_LIST_GET _UST_CMD(0x90)
06d4f27e	237	#define LTTNG_UST_TRACEPOINT_FIELD_LIST_GET _UST_CMD(0x91)
51489cad	238
2d78951a MD	239	/* Event FD commands */
	240	#define LTTNG_UST_FILTER _UST_CMD(0xA0)
	241
46050b1a MD	242	#define LTTNG_UST_ROOT_HANDLE 0
46050b1a MD	243
b61ce3b2	244	struct lttng_ust_obj;
46050b1a	245
ef9ff354 MD	246	union ust_args {
	247	struct {
	248	int *shm_fd;
	249	int *wait_fd;
	250	uint64_t *memory_map_size;
	251	} channel;
	252	struct {
	253	int *shm_fd;
	254	int *wait_fd;
	255	uint64_t *memory_map_size;
	256	} stream;
40003310 MD	257	struct {
	258	struct lttng_ust_field_iter entry;
	259	} field_list;
ef9ff354 MD	260	};
ef9ff354 MD	261
b61ce3b2	262	struct lttng_ust_objd_ops {
ef9ff354	263	long (*cmd)(int objd, unsigned int cmd, unsigned long arg,
f59ed768	264	union ust_args args, void owner);
46050b1a MD	265	int (*release)(int objd);
	266	};
	267
	268	/* Create root handle. Always ID 0. */
	269	int lttng_abi_create_root_handle(void);
	270
b61ce3b2	271	const struct lttng_ust_objd_ops *objd_ops(int id);
d4419b81	272	int lttng_ust_objd_unref(int id);
46050b1a MD	273
46050b1a MD	274	void lttng_ust_abi_exit(void);
003fedf4	275	void lttng_ust_events_exit(void);
f59ed768	276	void lttng_ust_objd_table_owner_cleanup(void *owner);
b35d179d	277
9f3fdbc6	278	#endif /* _LTTNG_UST_ABI_H */