diff options
Diffstat (limited to 'sys/cddl/compat/opensolaris/sys/byteorder.h')
-rw-r--r-- | sys/cddl/compat/opensolaris/sys/byteorder.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/sys/cddl/compat/opensolaris/sys/byteorder.h b/sys/cddl/compat/opensolaris/sys/byteorder.h new file mode 100644 index 000000000000..08a04cde3f22 --- /dev/null +++ b/sys/cddl/compat/opensolaris/sys/byteorder.h @@ -0,0 +1,65 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2005 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ +/* All Rights Reserved */ + +/* + * University Copyright- Copyright (c) 1982, 1986, 1988 + * The Regents of the University of California + * All Rights Reserved + * + * University Acknowledgment- Portions of this document are derived from + * software developed by the University of California, Berkeley, and its + * contributors. + */ + +#ifndef _OPENSOLARIS_SYS_BYTEORDER_H_ +#define _OPENSOLARIS_SYS_BYTEORDER_H_ + +/* + * Macros to reverse byte order + */ +#define BSWAP_8(x) ((x) & 0xff) +#define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8)) +#define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16)) +#define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32)) + +#define BMASK_8(x) ((x) & 0xff) +#define BMASK_16(x) ((x) & 0xffff) +#define BMASK_32(x) ((x) & 0xffffffff) +#define BMASK_64(x) (x) + +/* + * Macros to convert from a specific byte order to/from native byte order + */ +#if _BYTE_ORDER == _BIG_ENDIAN +#define LE_64(x) BSWAP_64(x) +#else +#define LE_64(x) BMASK_64(x) +#endif + +#endif /* _OPENSOLARIS_SYS_BYTEORDER_H_ */ |