63 lines
2.6 KiB
C
63 lines
2.6 KiB
C
|
/* kernel version macros */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2015 Wind River Systems, Inc.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions are met:
|
||
|
|
*
|
||
|
|
* 1) Redistributions of source code must retain the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer.
|
||
|
|
*
|
||
|
|
* 2) Redistributions in binary form must reproduce the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer in the documentation
|
||
|
|
* and/or other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* 3) Neither the name of Wind River Systems nor the names of its contributors
|
||
|
|
* may be used to endorse or promote products derived from this software without
|
||
|
|
* specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
||
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _kernel_version__h_
|
||
|
|
#define _kernel_version__h_
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The kernel version has been converted from a string to a four-byte
|
||
|
|
* quantity that is divided into three parts.
|
||
|
|
*
|
||
|
|
* Part 1: The two most significant bytes are sub-divided into four nibbles,
|
||
|
|
* representing the kernel's numeric version, w.x.y.z. These fields denote:
|
||
|
|
* w -- generation release number
|
||
|
|
* x -- major release
|
||
|
|
* y -- minor release
|
||
|
|
* z -- servicepack release
|
||
|
|
* Each of these elements must therefore be in the range 0 to 15, inclusive.
|
||
|
|
*
|
||
|
|
* Part 2: The next most significant byte is used for a variety of flags and is
|
||
|
|
* broken down as follows:
|
||
|
|
* Bits 7..0 - Cleared as the are currently unused.
|
||
|
|
*
|
||
|
|
* Part 3: The least significant byte is reserved for future use.
|
||
|
|
*/
|
||
|
|
#define KERNEL_VER_GENERATION(ver) ((ver >> 28) & 0x0F)
|
||
|
|
#define KERNEL_VER_MAJOR(ver) ((ver >> 24) & 0x0F)
|
||
|
|
#define KERNEL_VER_MINOR(ver) ((ver >> 20) & 0x0F)
|
||
|
|
#define KERNEL_VER_SERVICEPACK(ver) ((ver >> 16) & 0x0F)
|
||
|
|
|
||
|
|
/* return 8-bit flags */
|
||
|
|
#define KERNEL_VER_FLAGS(ver) ((ver >> 8) & 0xFF)
|
||
|
|
|
||
|
|
#endif /* _kernel_version__h_ */
|