freebsd-dev/sys/compat/freebsd32/freebsd32_misc.h
Pawel Jakub Dawidek d6f6b87647 Move the PAIR32TO64() macro and the RETVAL_HI/RETVAL_LO defines to a
header file for use by other .c files.

Sponsored by:	The FreeBSD Foundation
2013-08-18 13:34:11 +00:00

48 lines
1.9 KiB
C

/*-
* Copyright (c) 2013 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Pawel Jakub Dawidek under sponsorship from
* the FreeBSD Foundation.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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.
*
* $FreeBSD$
*/
#ifndef _COMPAT_FREEBSD32_MISC_H_
#define _COMPAT_FREEBSD32_MISC_H_
#include <sys/endian.h>
#if BYTE_ORDER == BIG_ENDIAN
#define PAIR32TO64(type, name) ((name ## 2) | ((type)(name ## 1) << 32))
#define RETVAL_HI 0
#define RETVAL_LO 1
#else
#define PAIR32TO64(type, name) ((name ## 1) | ((type)(name ## 2) << 32))
#define RETVAL_HI 1
#define RETVAL_LO 0
#endif
#endif /* !_COMPAT_FREEBSD32_MISC_H_ */