[lttng-modules.git] / lttng-kernel-version.h

#ifndef _LTTNG_KERNEL_VERSION_H
#define _LTTNG_KERNEL_VERSION_H

/*
 * lttng-kernel-version.h
 *
 * Contains helpers to check more complex kernel version conditions.
 *
 * Copyright (C) 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 <linux/version.h>

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
#include <generated/utsrelease.h>
#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) */
#include <linux/utsrelease.h>
#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) */

/*
 * This macro checks if the kernel version is between the two specified
 * versions (lower limit inclusive, upper limit exclusive).
 */
#define LTTNG_KERNEL_RANGE(a_low, b_low, c_low, a_high, b_high, c_high) \
	(LINUX_VERSION_CODE >= KERNEL_VERSION(a_low, b_low, c_low) && \
	 LINUX_VERSION_CODE < KERNEL_VERSION(a_high, b_high, c_high))

/* Ubuntu */

#define LTTNG_UBUNTU_KERNEL_VERSION(a, b, c, d) \
	(((a) << 24) + ((b) << 16) + ((c) << 8) + (d))

#ifdef UTS_UBUNTU_RELEASE_ABI
#define LTTNG_UBUNTU_VERSION_CODE \
	((LINUX_VERSION_CODE << 8) + UTS_UBUNTU_RELEASE_ABI)
#else
#define LTTNG_UBUNTU_VERSION_CODE 	0
#endif

#define LTTNG_UBUNTU_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
		a_high, b_high, c_high, d_high) \
	(LTTNG_UBUNTU_VERSION_CODE >= \
		LTTNG_UBUNTU_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
		LTTNG_UBUNTU_VERSION_CODE < \
		LTTNG_UBUNTU_KERNEL_VERSION(a_high, b_high, c_high, d_high))

/* Debian */

#define LTTNG_DEBIAN_KERNEL_VERSION(a, b, c, d, e, f) \
	(((((a) << 16) + ((b) << 8) + (c)) * 1000000ULL) + ((d) * 10000) + ((e) * 100) + (f))

#ifdef DEBIAN_API_VERSION
#define LTTNG_DEBIAN_VERSION_CODE \
	((LINUX_VERSION_CODE * 1000000ULL) + DEBIAN_API_VERSION)
#else
#define LTTNG_DEBIAN_VERSION_CODE	0
#endif

#define LTTNG_DEBIAN_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
		a_high, b_high, c_high, d_high, e_high, f_high) \
	(LTTNG_DEBIAN_VERSION_CODE >= \
		LTTNG_DEBIAN_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
		LTTNG_DEBIAN_VERSION_CODE < \
		LTTNG_DEBIAN_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))

#define LTTNG_RHEL_KERNEL_VERSION(a, b, c, d, e, f) \
	(((((a) << 16) + ((b) << 8) + (c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f))

/* RHEL */

#ifdef RHEL_API_VERSION
#define LTTNG_RHEL_VERSION_CODE \
	((LINUX_VERSION_CODE * 10000000ULL) + RHEL_API_VERSION)
#else
#define LTTNG_RHEL_VERSION_CODE		0
#endif

#define LTTNG_RHEL_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
		a_high, b_high, c_high, d_high, e_high, f_high) \
	(LTTNG_RHEL_VERSION_CODE >= \
		LTTNG_RHEL_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
		LTTNG_RHEL_VERSION_CODE < \
		LTTNG_RHEL_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))

/* RT patch */

#define LTTNG_RT_KERNEL_VERSION(a, b, c, d) \
	(((a) << 24) + ((b) << 16) + ((c) << 8) + (d))

#ifdef RT_PATCH_VERSION
#define LTTNG_RT_VERSION_CODE \
	((LINUX_VERSION_CODE << 8) + RT_PATCH_VERSION)
#else
#define LTTNG_RT_VERSION_CODE 	0
#endif

#define LTTNG_RT_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
		a_high, b_high, c_high, d_high) \
	(LTTNG_RT_VERSION_CODE >= \
		LTTNG_RT_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
		LTTNG_RT_VERSION_CODE < \
		LTTNG_RT_KERNEL_VERSION(a_high, b_high, c_high, d_high))

#endif /* _LTTNG_KERNEL_VERSION_H */
Commit	Line	Data
5fa38800 MD	1	#ifndef _LTTNG_KERNEL_VERSION_H
	2	#define _LTTNG_KERNEL_VERSION_H
	3
	4	/*
	5	* lttng-kernel-version.h
	6	*
	7	* Contains helpers to check more complex kernel version conditions.
	8	*
	9	* Copyright (C) 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	10	*
	11	* This library is free software; you can redistribute it and/or
	12	* modify it under the terms of the GNU Lesser General Public
	13	* License as published by the Free Software Foundation; only
	14	* version 2.1 of the License.
	15	*
	16	* This library is distributed in the hope that it will be useful,
	17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	19	* Lesser General Public License for more details.
	20	*
	21	* You should have received a copy of the GNU Lesser General Public
	22	* License along with this library; if not, write to the Free Software
	23	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	24	*/
	25
	26	#include <linux/version.h>
9f61c55f MD	27
	28	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
	29	#include <generated/utsrelease.h>
	30	#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) */
7b10d281	31	#include <linux/utsrelease.h>
9f61c55f	32	#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) */
5fa38800 MD	33
	34	/*
	35	* This macro checks if the kernel version is between the two specified
144bbfd5	36	* versions (lower limit inclusive, upper limit exclusive).
5fa38800 MD	37	*/
	38	#define LTTNG_KERNEL_RANGE(a_low, b_low, c_low, a_high, b_high, c_high) \
	39	(LINUX_VERSION_CODE >= KERNEL_VERSION(a_low, b_low, c_low) && \
144bbfd5	40	LINUX_VERSION_CODE < KERNEL_VERSION(a_high, b_high, c_high))
5fa38800	41
53c4007f MJ	42	/* Ubuntu */
53c4007f MJ	43
3e5941df	44	#define LTTNG_UBUNTU_KERNEL_VERSION(a, b, c, d) \
5c7af523	45	(((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
3e5941df	46
05732a66	47	#ifdef UTS_UBUNTU_RELEASE_ABI
3e5941df JD	48	#define LTTNG_UBUNTU_VERSION_CODE \
3e5941df JD	49	((LINUX_VERSION_CODE << 8) + UTS_UBUNTU_RELEASE_ABI)
05732a66 MD	50	#else
	51	#define LTTNG_UBUNTU_VERSION_CODE 0
	52	#endif
3e5941df JD	53
	54	#define LTTNG_UBUNTU_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
	55	a_high, b_high, c_high, d_high) \
05732a66	56	(LTTNG_UBUNTU_VERSION_CODE >= \
3e5941df JD	57	LTTNG_UBUNTU_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
	58	LTTNG_UBUNTU_VERSION_CODE < \
	59	LTTNG_UBUNTU_KERNEL_VERSION(a_high, b_high, c_high, d_high))
	60
53c4007f MJ	61	/* Debian */
53c4007f MJ	62
72e6c528 MD	63	#define LTTNG_DEBIAN_KERNEL_VERSION(a, b, c, d, e, f) \
	64	(((((a) << 16) + ((b) << 8) + (c)) * 1000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
	65
05732a66	66	#ifdef DEBIAN_API_VERSION
72e6c528 MD	67	#define LTTNG_DEBIAN_VERSION_CODE \
72e6c528 MD	68	((LINUX_VERSION_CODE * 1000000ULL) + DEBIAN_API_VERSION)
05732a66 MD	69	#else
	70	#define LTTNG_DEBIAN_VERSION_CODE 0
	71	#endif
72e6c528 MD	72
	73	#define LTTNG_DEBIAN_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
	74	a_high, b_high, c_high, d_high, e_high, f_high) \
05732a66	75	(LTTNG_DEBIAN_VERSION_CODE >= \
72e6c528 MD	76	LTTNG_DEBIAN_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
	77	LTTNG_DEBIAN_VERSION_CODE < \
	78	LTTNG_DEBIAN_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))
	79
53c4007f MJ	80	#define LTTNG_RHEL_KERNEL_VERSION(a, b, c, d, e, f) \
	81	(((((a) << 16) + ((b) << 8) + (c)) * 10000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
	82
	83	/* RHEL */
f30ae671	84
53c4007f	85	#ifdef RHEL_API_VERSION
f30ae671	86	#define LTTNG_RHEL_VERSION_CODE \
53c4007f	87	((LINUX_VERSION_CODE * 10000000ULL) + RHEL_API_VERSION)
f30ae671 MD	88	#else
	89	#define LTTNG_RHEL_VERSION_CODE 0
	90	#endif
	91
53c4007f MJ	92	#define LTTNG_RHEL_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
53c4007f MJ	93	a_high, b_high, c_high, d_high, e_high, f_high) \
f30ae671	94	(LTTNG_RHEL_VERSION_CODE >= \
53c4007f	95	LTTNG_RHEL_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
f30ae671	96	LTTNG_RHEL_VERSION_CODE < \
53c4007f MJ	97	LTTNG_RHEL_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))
	98
	99	/* RT patch */
f30ae671	100
b4c8e4d3 MJ	101	#define LTTNG_RT_KERNEL_VERSION(a, b, c, d) \
	102	(((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
	103
	104	#ifdef RT_PATCH_VERSION
	105	#define LTTNG_RT_VERSION_CODE \
	106	((LINUX_VERSION_CODE << 8) + RT_PATCH_VERSION)
	107	#else
	108	#define LTTNG_RT_VERSION_CODE 0
	109	#endif
	110
	111	#define LTTNG_RT_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
	112	a_high, b_high, c_high, d_high) \
	113	(LTTNG_RT_VERSION_CODE >= \
	114	LTTNG_RT_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
	115	LTTNG_RT_VERSION_CODE < \
	116	LTTNG_RT_KERNEL_VERSION(a_high, b_high, c_high, d_high))
	117
5fa38800	118	#endif /* _LTTNG_KERNEL_VERSION_H */