[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))

#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))

#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))

#endif /* _LTTNG_KERNEL_VERSION_H */
Commit	Line	Data
	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>
	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)) */
	31	#include <linux/utsrelease.h>
	32	#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) */
	33
	34	/*
	35	* This macro checks if the kernel version is between the two specified
	36	* versions (lower limit inclusive, upper limit exclusive).
	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) && \
	40	LINUX_VERSION_CODE < KERNEL_VERSION(a_high, b_high, c_high))
	41
	42	#define LTTNG_UBUNTU_KERNEL_VERSION(a, b, c, d) \
	43	(((a) << 24) + ((b) << 16) + (c << 8) + (d))
	44
	45	#ifdef UTS_UBUNTU_RELEASE_ABI
	46	#define LTTNG_UBUNTU_VERSION_CODE \
	47	((LINUX_VERSION_CODE << 8) + UTS_UBUNTU_RELEASE_ABI)
	48	#else
	49	#define LTTNG_UBUNTU_VERSION_CODE 0
	50	#endif
	51
	52	#define LTTNG_UBUNTU_KERNEL_RANGE(a_low, b_low, c_low, d_low, \
	53	a_high, b_high, c_high, d_high) \
	54	(LTTNG_UBUNTU_VERSION_CODE >= \
	55	LTTNG_UBUNTU_KERNEL_VERSION(a_low, b_low, c_low, d_low) && \
	56	LTTNG_UBUNTU_VERSION_CODE < \
	57	LTTNG_UBUNTU_KERNEL_VERSION(a_high, b_high, c_high, d_high))
	58
	59	#define LTTNG_DEBIAN_KERNEL_VERSION(a, b, c, d, e, f) \
	60	(((((a) << 16) + ((b) << 8) + (c)) * 1000000ULL) + ((d) * 10000) + ((e) * 100) + (f))
	61
	62	#ifdef DEBIAN_API_VERSION
	63	#define LTTNG_DEBIAN_VERSION_CODE \
	64	((LINUX_VERSION_CODE * 1000000ULL) + DEBIAN_API_VERSION)
	65	#else
	66	#define LTTNG_DEBIAN_VERSION_CODE 0
	67	#endif
	68
	69	#define LTTNG_DEBIAN_KERNEL_RANGE(a_low, b_low, c_low, d_low, e_low, f_low, \
	70	a_high, b_high, c_high, d_high, e_high, f_high) \
	71	(LTTNG_DEBIAN_VERSION_CODE >= \
	72	LTTNG_DEBIAN_KERNEL_VERSION(a_low, b_low, c_low, d_low, e_low, f_low) && \
	73	LTTNG_DEBIAN_VERSION_CODE < \
	74	LTTNG_DEBIAN_KERNEL_VERSION(a_high, b_high, c_high, d_high, e_high, f_high))
	75
	76	#endif /* _LTTNG_KERNEL_VERSION_H */