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

/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1) */
#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>
 */

#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 <wrapper/compiler.h>
#include <wrapper/vmalloc.h>
#include <lttng-tracer-core.h>
#include <lttng-events.h>

#define LTTNG_MODULES_MAJOR_VERSION 2
#define LTTNG_MODULES_MINOR_VERSION 11
#define LTTNG_MODULES_PATCHLEVEL_VERSION 0
#define LTTNG_MODULES_EXTRAVERSION "-pre"

#define LTTNG_VERSION_NAME		"L-Beer"
#define LTTNG_VERSION_DESCRIPTION	"An alcoholic drink made from yeast-fermented malt flavored with hops."

#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	/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1) */
	2	#ifndef _LTTNG_TRACER_H
	3	#define _LTTNG_TRACER_H
	4
	5	/*
	6	* lttng-tracer.h
	7	*
	8	* This contains the definitions for the Linux Trace Toolkit Next
	9	* Generation tracer.
	10	*
	11	* Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	12	*/
	13
	14	#include <stdarg.h>
	15	#include <linux/types.h>
	16	#include <linux/limits.h>
	17	#include <linux/list.h>
	18	#include <linux/cache.h>
	19	#include <linux/timex.h>
	20	#include <linux/wait.h>
	21	#include <asm/atomic.h>
	22	#include <asm/local.h>
	23
	24	#include <wrapper/trace-clock.h>
	25	#include <wrapper/compiler.h>
	26	#include <wrapper/vmalloc.h>
	27	#include <lttng-tracer-core.h>
	28	#include <lttng-events.h>
	29
	30	#define LTTNG_MODULES_MAJOR_VERSION 2
	31	#define LTTNG_MODULES_MINOR_VERSION 11
	32	#define LTTNG_MODULES_PATCHLEVEL_VERSION 0
	33	#define LTTNG_MODULES_EXTRAVERSION "-pre"
	34
	35	#define LTTNG_VERSION_NAME "L-Beer"
	36	#define LTTNG_VERSION_DESCRIPTION "An alcoholic drink made from yeast-fermented malt flavored with hops."
	37
	38	#ifndef CHAR_BIT
	39	#define CHAR_BIT 8
	40	#endif
	41
	42	/* Number of bytes to log with a read/write event */
	43	#define LTTNG_LOG_RW_SIZE 32L
	44	#define LTTNG_MAX_SMALL_SIZE 0xFFFFU
	45
	46	#ifdef RING_BUFFER_ALIGN
	47	#define lttng_alignof(type) __alignof__(type)
	48	#else
	49	#define lttng_alignof(type) 1
	50	#endif
	51
	52	/* Tracer properties */
	53	#define CTF_MAGIC_NUMBER 0xC1FC1FC1
	54	#define TSDL_MAGIC_NUMBER 0x75D11D57
	55
	56	/* CTF specification version followed */
	57	#define CTF_SPEC_MAJOR 1
	58	#define CTF_SPEC_MINOR 8
	59
	60	/*
	61	* Number of milliseconds to retry before failing metadata writes on buffer full
	62	* condition. (10 seconds)
	63	*/
	64	#define LTTNG_METADATA_TIMEOUT_MSEC 10000
	65
	66	#define LTTNG_RFLAG_EXTENDED RING_BUFFER_RFLAG_END
	67	#define LTTNG_RFLAG_END (LTTNG_RFLAG_EXTENDED << 1)
	68
	69	#endif /* _LTTNG_TRACER_H */