[lttng-modules.git] / lttng-tracer.h

#ifndef _LTTNG_TRACER_H
#define _LTTNG_TRACER_H

/*
 * lttng-tracer.h
 *
 * This contains the definitions for the Linux Trace Toolkit Next
 * Generation tracer.
 *
 * Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; only
 * version 2.1 of the License.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <stdarg.h>
#include <linux/types.h>
#include <linux/limits.h>
#include <linux/list.h>
#include <linux/cache.h>
#include <linux/timex.h>
#include <linux/wait.h>
#include <asm/atomic.h>
#include <asm/local.h>

#include "wrapper/trace-clock.h"
#include "lttng-tracer-core.h"
#include "lttng-events.h"

#define LTTNG_MODULES_MAJOR_VERSION 2
#define LTTNG_MODULES_MINOR_VERSION 0
#define LTTNG_MODULES_PATCHLEVEL_VERSION 0

#ifndef CHAR_BIT
#define CHAR_BIT 8
#endif

/* Number of bytes to log with a read/write event */
#define LTTNG_LOG_RW_SIZE		32L
#define LTTNG_MAX_SMALL_SIZE		0xFFFFU

#ifdef RING_BUFFER_ALIGN
#define lttng_alignof(type)	__alignof__(type)
#else
#define lttng_alignof(type)	1
#endif

/* Tracer properties */
#define CTF_MAGIC_NUMBER		0xC1FC1FC1
#define TSDL_MAGIC_NUMBER		0x75D11D57

/* CTF specification version followed */
#define CTF_SPEC_MAJOR			1
#define CTF_SPEC_MINOR			8

/*
 * Number of milliseconds to retry before failing metadata writes on buffer full
 * condition. (10 seconds)
 */
#define LTTNG_METADATA_TIMEOUT_MSEC	10000

#define LTTNG_RFLAG_EXTENDED		RING_BUFFER_RFLAG_END
#define LTTNG_RFLAG_END			(LTTNG_RFLAG_EXTENDED << 1)

#endif /* _LTTNG_TRACER_H */
Commit	Line	Data
	1	#ifndef _LTTNG_TRACER_H
	2	#define _LTTNG_TRACER_H
	3
	4	/*
	5	* lttng-tracer.h
	6	*
	7	* This contains the definitions for the Linux Trace Toolkit Next
	8	* Generation tracer.
	9	*
	10	* Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	11	*
	12	* This library is free software; you can redistribute it and/or
	13	* modify it under the terms of the GNU Lesser General Public
	14	* License as published by the Free Software Foundation; only
	15	* version 2.1 of the License.
	16	*
	17	* This library is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	20	* Lesser General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU Lesser General Public
	23	* License along with this library; if not, write to the Free Software
	24	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	25	*/
	26
	27	#include <stdarg.h>
	28	#include <linux/types.h>
	29	#include <linux/limits.h>
	30	#include <linux/list.h>
	31	#include <linux/cache.h>
	32	#include <linux/timex.h>
	33	#include <linux/wait.h>
	34	#include <asm/atomic.h>
	35	#include <asm/local.h>
	36
	37	#include "wrapper/trace-clock.h"
	38	#include "lttng-tracer-core.h"
	39	#include "lttng-events.h"
	40
	41	#define LTTNG_MODULES_MAJOR_VERSION 2
	42	#define LTTNG_MODULES_MINOR_VERSION 0
	43	#define LTTNG_MODULES_PATCHLEVEL_VERSION 0
	44
	45	#ifndef CHAR_BIT
	46	#define CHAR_BIT 8
	47	#endif
	48
	49	/* Number of bytes to log with a read/write event */
	50	#define LTTNG_LOG_RW_SIZE 32L
	51	#define LTTNG_MAX_SMALL_SIZE 0xFFFFU
	52
	53	#ifdef RING_BUFFER_ALIGN
	54	#define lttng_alignof(type) __alignof__(type)
	55	#else
	56	#define lttng_alignof(type) 1
	57	#endif
	58
	59	/* Tracer properties */
	60	#define CTF_MAGIC_NUMBER 0xC1FC1FC1
	61	#define TSDL_MAGIC_NUMBER 0x75D11D57
	62
	63	/* CTF specification version followed */
	64	#define CTF_SPEC_MAJOR 1
	65	#define CTF_SPEC_MINOR 8
	66
	67	/*
	68	* Number of milliseconds to retry before failing metadata writes on buffer full
	69	* condition. (10 seconds)
	70	*/
	71	#define LTTNG_METADATA_TIMEOUT_MSEC 10000
	72
	73	#define LTTNG_RFLAG_EXTENDED RING_BUFFER_RFLAG_END
	74	#define LTTNG_RFLAG_END (LTTNG_RFLAG_EXTENDED << 1)
	75
	76	#endif /* _LTTNG_TRACER_H */