Version 2.13.15
[lttng-modules.git] / include / lttng / tracer.h
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b7cdc182 1/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) */
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2#ifndef _LTTNG_TRACER_H
3#define _LTTNG_TRACER_H
17baffe2 4
1c8284eb 5/*
2df37e95 6 * lttng/tracer.h
17baffe2 7 *
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8 * This contains the definitions for the Linux Trace Toolkit Next
9 * Generation tracer.
1c8284eb 10 *
886d51a3 11 * Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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12 */
13
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14#include <linux/types.h>
15#include <linux/limits.h>
16#include <linux/list.h>
17#include <linux/cache.h>
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18#include <linux/timex.h>
19#include <linux/wait.h>
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20#include <asm/atomic.h>
21#include <asm/local.h>
22
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23#include <wrapper/trace-clock.h>
24#include <wrapper/compiler.h>
1b25fe58 25#include <wrapper/vmalloc.h>
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26#include <lttng/tracer-core.h>
27#include <lttng/events.h>
1c8284eb 28
c6c9e10f 29#define LTTNG_MODULES_MAJOR_VERSION 2
3affe789 30#define LTTNG_MODULES_MINOR_VERSION 13
5f7e9a38 31#define LTTNG_MODULES_PATCHLEVEL_VERSION 15
fbba0d79 32#define LTTNG_MODULES_EXTRAVERSION ""
80c16bcf 33
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34#define LTTNG_VERSION_NAME "Nordicité"
35#define LTTNG_VERSION_DESCRIPTION "The product of a collaboration between Champ Libre and Boréale, this farmhouse IPA is brewed with Kveik yeast and Québec-grown barley, oats and juniper branches. The result is a remarkable fruity hazy golden IPA that offers a balanced touch of resinous and woodsy bitterness."
d117fe45 36
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37#ifndef CHAR_BIT
38#define CHAR_BIT 8
39#endif
40
1c8284eb 41/* Number of bytes to log with a read/write event */
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42#define LTTNG_LOG_RW_SIZE 32L
43#define LTTNG_MAX_SMALL_SIZE 0xFFFFU
1c8284eb 44
d793d5e1 45#ifdef RING_BUFFER_ALIGN
a90917c3 46#define lttng_alignof(type) __alignof__(type)
c099397a 47#else
a90917c3 48#define lttng_alignof(type) 1
d793d5e1 49#endif
1c8284eb 50
1c8284eb 51/* Tracer properties */
1c25284c 52#define CTF_MAGIC_NUMBER 0xC1FC1FC1
881833e3 53#define TSDL_MAGIC_NUMBER 0x75D11D57
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54
55/* CTF specification version followed */
56#define CTF_SPEC_MAJOR 1
57#define CTF_SPEC_MINOR 8
58
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59/*
60 * Number of milliseconds to retry before failing metadata writes on buffer full
61 * condition. (10 seconds)
62 */
63#define LTTNG_METADATA_TIMEOUT_MSEC 10000
64
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65#define LTTNG_RFLAG_EXTENDED RING_BUFFER_RFLAG_END
66#define LTTNG_RFLAG_END (LTTNG_RFLAG_EXTENDED << 1)
64c796d8 67
a90917c3 68#endif /* _LTTNG_TRACER_H */
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