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Diffstat (limited to '9/platforms/android-21/arch-arm/usr/include/sys/endian.h')
| -rw-r--r-- | 9/platforms/android-21/arch-arm/usr/include/sys/endian.h | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/9/platforms/android-21/arch-arm/usr/include/sys/endian.h b/9/platforms/android-21/arch-arm/usr/include/sys/endian.h new file mode 100644 index 0000000..be4c905 --- /dev/null +++ b/9/platforms/android-21/arch-arm/usr/include/sys/endian.h @@ -0,0 +1,283 @@ +/* $OpenBSD: endian.h,v 1.17 2006/01/06 18:53:05 millert Exp $ */ + +/*- + * Copyright (c) 1997 Niklas Hallqvist. All rights reserved. + * + * 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 AUTHOR ``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 AUTHOR 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. + */ + +/* + * Generic definitions for little- and big-endian systems. Other endianesses + * has to be dealt with in the specific machine/endian.h file for that port. + * + * This file is meant to be included from a little- or big-endian port's + * machine/endian.h after setting _BYTE_ORDER to either 1234 for little endian + * or 4321 for big.. + */ + +#ifndef _SYS_ENDIAN_H_ +#define _SYS_ENDIAN_H_ + +#include <sys/cdefs.h> +#include <machine/endian.h> + +#include <stdint.h> + +#define _LITTLE_ENDIAN 1234 +#define _BIG_ENDIAN 4321 +#define _PDP_ENDIAN 3412 + +#if __BSD_VISIBLE +#define LITTLE_ENDIAN _LITTLE_ENDIAN +#define BIG_ENDIAN _BIG_ENDIAN +#define PDP_ENDIAN _PDP_ENDIAN +#define BYTE_ORDER _BYTE_ORDER +#endif + +#ifdef __GNUC__ + +#define __swap16gen(x) __statement({ \ + __uint16_t __swap16gen_x = (x); \ + \ + (__uint16_t)((__swap16gen_x & 0xff) << 8 | \ + (__swap16gen_x & 0xff00) >> 8); \ +}) + +#define __swap32gen(x) __statement({ \ + __uint32_t __swap32gen_x = (x); \ + \ + (__uint32_t)((__swap32gen_x & 0xff) << 24 | \ + (__swap32gen_x & 0xff00) << 8 | \ + (__swap32gen_x & 0xff0000) >> 8 | \ + (__swap32gen_x & 0xff000000) >> 24); \ +}) + +#define __swap64gen(x) __statement({ \ + __uint64_t __swap64gen_x = (x); \ + \ + (__uint64_t)((__swap64gen_x & 0xff) << 56 | \ + (__swap64gen_x & 0xff00ULL) << 40 | \ + (__swap64gen_x & 0xff0000ULL) << 24 | \ + (__swap64gen_x & 0xff000000ULL) << 8 | \ + (__swap64gen_x & 0xff00000000ULL) >> 8 | \ + (__swap64gen_x & 0xff0000000000ULL) >> 24 | \ + (__swap64gen_x & 0xff000000000000ULL) >> 40 | \ + (__swap64gen_x & 0xff00000000000000ULL) >> 56); \ +}) + +#else /* __GNUC__ */ + +/* Note that these macros evaluate their arguments several times. */ +#define __swap16gen(x) \ + (__uint16_t)(((__uint16_t)(x) & 0xff) << 8 | ((__uint16_t)(x) & 0xff00) >> 8) + +#define __swap32gen(x) \ + (__uint32_t)(((__uint32_t)(x) & 0xff) << 24 | \ + ((__uint32_t)(x) & 0xff00) << 8 | ((__uint32_t)(x) & 0xff0000) >> 8 |\ + ((__uint32_t)(x) & 0xff000000) >> 24) + +#define __swap64gen(x) \ + (__uint64_t)((((__uint64_t)(x) & 0xff) << 56) | \ + ((__uint64_t)(x) & 0xff00ULL) << 40 | \ + ((__uint64_t)(x) & 0xff0000ULL) << 24 | \ + ((__uint64_t)(x) & 0xff000000ULL) << 8 | \ + ((__uint64_t)(x) & 0xff00000000ULL) >> 8 | \ + ((__uint64_t)(x) & 0xff0000000000ULL) >> 24 | \ + ((__uint64_t)(x) & 0xff000000000000ULL) >> 40 | \ + ((__uint64_t)(x) & 0xff00000000000000ULL) >> 56) + +#endif /* __GNUC__ */ + +/* + * Define MD_SWAP if you provide swap{16,32}md functions/macros that are + * optimized for your architecture, These will be used for swap{16,32} + * unless the argument is a constant and we are using GCC, where we can + * take advantage of the CSE phase much better by using the generic version. + */ +#ifdef MD_SWAP +#if __GNUC__ + +#define __swap16(x) __statement({ \ + __uint16_t __swap16_x = (x); \ + \ + __builtin_constant_p(x) ? __swap16gen(__swap16_x) : \ + __swap16md(__swap16_x); \ +}) + +#define __swap32(x) __statement({ \ + __uint32_t __swap32_x = (x); \ + \ + __builtin_constant_p(x) ? __swap32gen(__swap32_x) : \ + __swap32md(__swap32_x); \ +}) + +#define __swap64(x) __statement({ \ + __uint64_t __swap64_x = (x); \ + \ + __builtin_constant_p(x) ? __swap64gen(__swap64_x) : \ + __swap64md(__swap64_x); \ +}) + +#endif /* __GNUC__ */ + +#else /* MD_SWAP */ +#define __swap16 __swap16gen +#define __swap32 __swap32gen +#define __swap64 __swap64gen +#endif /* MD_SWAP */ + +#define __swap16_multi(v, n) do { \ + __size_t __swap16_multi_n = (n); \ + __uint16_t *__swap16_multi_v = (v); \ + \ + while (__swap16_multi_n) { \ + *__swap16_multi_v = swap16(*__swap16_multi_v); \ + __swap16_multi_v++; \ + __swap16_multi_n--; \ + } \ +} while (0) + +#if __BSD_VISIBLE +#define swap16 __swap16 +#define swap32 __swap32 +#define swap64 __swap64 +#define swap16_multi __swap16_multi +#endif /* __BSD_VISIBLE */ + +#if _BYTE_ORDER == _LITTLE_ENDIAN + +/* Can be overridden by machine/endian.h before inclusion of this file. */ +#ifndef _QUAD_HIGHWORD +#define _QUAD_HIGHWORD 1 +#endif +#ifndef _QUAD_LOWWORD +#define _QUAD_LOWWORD 0 +#endif + +#if __BSD_VISIBLE +#define htobe16 __swap16 +#define htobe32 __swap32 +#define htobe64 __swap64 +#define betoh16 __swap16 +#define betoh32 __swap32 +#define betoh64 __swap64 + +#define htole16(x) (x) +#define htole32(x) (x) +#define htole64(x) (x) +#define letoh16(x) (x) +#define letoh32(x) (x) +#define letoh64(x) (x) +#endif /* __BSD_VISIBLE */ + +/* glibc compatibility. */ +__BEGIN_DECLS +uint32_t htonl(uint32_t) __pure2; +uint16_t htons(uint16_t) __pure2; +uint32_t ntohl(uint32_t) __pure2; +uint16_t ntohs(uint16_t) __pure2; +__END_DECLS + +#define htonl(x) __swap32(x) +#define htons(x) __swap16(x) +#define ntohl(x) __swap32(x) +#define ntohs(x) __swap16(x) + +/* Bionic additions */ +#define htonq(x) __swap64(x) +#define ntohq(x) __swap64(x) + +#define __LITTLE_ENDIAN_BITFIELD + +#endif /* _BYTE_ORDER */ + +#if _BYTE_ORDER == _BIG_ENDIAN + +/* Can be overridden by machine/endian.h before inclusion of this file. */ +#ifndef _QUAD_HIGHWORD +#define _QUAD_HIGHWORD 0 +#endif +#ifndef _QUAD_LOWWORD +#define _QUAD_LOWWORD 1 +#endif + +#if __BSD_VISIBLE +#define htole16 __swap16 +#define htole32 __swap32 +#define htole64 __swap64 +#define letoh16 __swap16 +#define letoh32 __swap32 +#define letoh64 __swap64 + +#define htobe16(x) (x) +#define htobe32(x) (x) +#define htobe64(x) (x) +#define betoh16(x) (x) +#define betoh32(x) (x) +#define betoh64(x) (x) +#endif /* __BSD_VISIBLE */ + +#define htons(x) (x) +#define htonl(x) (x) +#define ntohs(x) (x) +#define ntohl(x) (x) + +/* Bionic additions */ +#define ntohq(x) (x) +#define htonq(x) (x) + +#define __BIG_ENDIAN_BITFIELD + +#endif /* _BYTE_ORDER */ + +#if __BSD_VISIBLE +#define NTOHL(x) (x) = ntohl((u_int32_t)(x)) +#define NTOHS(x) (x) = ntohs((u_int16_t)(x)) +#define HTONL(x) (x) = htonl((u_int32_t)(x)) +#define HTONS(x) (x) = htons((u_int16_t)(x)) +#endif + + +#define __BYTE_ORDER _BYTE_ORDER +#ifndef __LITTLE_ENDIAN +#define __LITTLE_ENDIAN _LITTLE_ENDIAN +#endif +#ifndef __BIG_ENDIAN +#define __BIG_ENDIAN _BIG_ENDIAN +#endif + + +#ifdef __BSD_VISIBLE +/* + * glibc-compatible beXXtoh/leXXtoh synonyms for htobeXX/htoleXX. + * The BSDs export both sets of names, bionic historically only + * exported the ones above (or on the rhs here), and glibc only + * exports these names (on the lhs). + */ +#define be16toh(x) htobe16(x) +#define be32toh(x) htobe32(x) +#define be64toh(x) htobe64(x) +#define le16toh(x) htole16(x) +#define le32toh(x) htole32(x) +#define le64toh(x) htole64(x) +#endif + +#endif /* _SYS_ENDIAN_H_ */ |