Simplify our endian.h implementation.
We can rely on the compiler's builtins. Tested on arm, arm64, mips, x86, and x86-64. Change-Id: I0f774ed7e85b3c791a3178d8ef17c6500e6a9ace
This commit is contained in:
		| @@ -1,75 +0,0 @@ | ||||
| /*	$OpenBSD: endian.h,v 1.3 2005/12/13 00:35:23 millert Exp $	*/ | ||||
|  | ||||
| /* | ||||
|  * Copyright (C) 2010 The Android Open Source Project | ||||
|  * All rights reserved. | ||||
|  * | ||||
|  * Redistribution and use in source and binary forms, with or without | ||||
|  * modification, are permitted provided that the following conditions | ||||
|  * are met: | ||||
|  *  * Redistributions of source code must retain the above copyright | ||||
|  *    notice, this list of conditions and the following disclaimer. | ||||
|  *  * 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 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 OWNER 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 _ARM_ENDIAN_H_ | ||||
| #define _ARM_ENDIAN_H_ | ||||
|  | ||||
| #ifdef __GNUC__ | ||||
|  | ||||
| /* According to RealView Assembler User's Guide, REV and REV16 are available | ||||
|  * in Thumb code and 16-bit instructions when used in Thumb-2 code. | ||||
|  * | ||||
|  * REV Rd, Rm | ||||
|  *   Rd and Rm must both be Lo registers. | ||||
|  * | ||||
|  * REV16 Rd, Rm | ||||
|  *   Rd and Rm must both be Lo registers. | ||||
|  * | ||||
|  * The +l constraint takes care of this without constraining us in ARM mode. | ||||
|  */ | ||||
| #define __swap16md(x) ({                                        \ | ||||
|     register u_int16_t _x = (x);                                \ | ||||
|     __asm__ __volatile__("rev16 %0, %0" : "+l" (_x));           \ | ||||
|     _x;                                                         \ | ||||
| }) | ||||
|  | ||||
| #define __swap32md(x) ({                                        \ | ||||
|     register u_int32_t _x = (x);                                \ | ||||
|     __asm__ __volatile__("rev %0, %0" : "+l" (_x));             \ | ||||
|     _x;                                                         \ | ||||
| }) | ||||
|  | ||||
| #define __swap64md(x) ({                                        \ | ||||
|     u_int64_t _swap64md_x = (x);                                \ | ||||
|     (u_int64_t) __swap32md(_swap64md_x >> 32) |                 \ | ||||
|         (u_int64_t) __swap32md(_swap64md_x & 0xffffffff) << 32; \ | ||||
| }) | ||||
|  | ||||
| /* Tell sys/endian.h we have MD variants of the swap macros.  */ | ||||
| #define MD_SWAP | ||||
|  | ||||
| #endif  /* __GNUC__ */ | ||||
|  | ||||
| #define _BYTE_ORDER _LITTLE_ENDIAN | ||||
| #define __STRICT_ALIGNMENT | ||||
| #include <sys/types.h> | ||||
| #include <sys/endian.h> | ||||
|  | ||||
| #endif  /* !_ARM_ENDIAN_H_ */ | ||||
| @@ -1,66 +0,0 @@ | ||||
| /*	$OpenBSD: endian.h,v 1.5 2006/02/27 23:35:59 miod Exp $ */ | ||||
|  | ||||
| /* | ||||
|  * Copyright (c) 2001-2002 Opsycon AB  (www.opsycon.se / www.opsycon.com) | ||||
|  * | ||||
|  * 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. | ||||
|  * | ||||
|  */ | ||||
|  | ||||
| #ifndef _MIPS64_ENDIAN_H_ | ||||
| #define _MIPS64_ENDIAN_H_ | ||||
|  | ||||
| #ifdef __GNUC__ | ||||
|  | ||||
| #if defined(__mips_isa_rev) && (__mips_isa_rev >= 2) | ||||
| #define __swap16md(x) ({					\ | ||||
|     register uint16_t _x = (x);					\ | ||||
|     register uint16_t _r;					\ | ||||
|     __asm volatile ("wsbh %0, %1" : "=r" (_r) : "r" (_x));	\ | ||||
|     _r;								\ | ||||
| }) | ||||
|  | ||||
| #define __swap32md(x) ({					\ | ||||
|     register uint32_t _x = (x);					\ | ||||
|     register uint32_t _r;					\ | ||||
|     __asm volatile ("wsbh %0, %1; rotr %0, %0, 16" : "=r" (_r) : "r" (_x)); \ | ||||
|     _r;								\ | ||||
| }) | ||||
|  | ||||
| #define __swap64md(x) ({					\ | ||||
|     uint64_t _swap64md_x = (x);					\ | ||||
|     (uint64_t) __swap32md(_swap64md_x >> 32) |			\ | ||||
|         (uint64_t) __swap32md(_swap64md_x & 0xffffffff) << 32;	\ | ||||
| }) | ||||
|  | ||||
| /* Tell sys/endian.h we have MD variants of the swap macros.  */ | ||||
| #define MD_SWAP | ||||
|  | ||||
| #endif  /* __mips32r2__ */ | ||||
| #endif  /* __GNUC__ */ | ||||
|  | ||||
| #define _BYTE_ORDER _LITTLE_ENDIAN | ||||
| #define __STRICT_ALIGNMENT | ||||
| #include <sys/types.h> | ||||
| #include <sys/endian.h> | ||||
|  | ||||
| #endif /* _MIPS64_ENDIAN_H_ */ | ||||
| @@ -1,42 +0,0 @@ | ||||
| /*	$OpenBSD: endian.h,v 1.17 2011/03/12 04:03:04 guenther 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. | ||||
|  */ | ||||
|  | ||||
| #ifndef _MACHINE_ENDIAN_H_ | ||||
| #define _MACHINE_ENDIAN_H_ | ||||
|  | ||||
| /* Use GCC builtins */ | ||||
| #define __swap16md(x) __builtin_bswap16(x) | ||||
| #define __swap32md(x) __builtin_bswap32(x) | ||||
| #define __swap64md(x) __builtin_bswap64(x) | ||||
|  | ||||
| /* Tell sys/endian.h we have MD variants of the swap macros.  */ | ||||
| #define MD_SWAP | ||||
|  | ||||
| #define _BYTE_ORDER _LITTLE_ENDIAN | ||||
| #include <sys/types.h> | ||||
| #include <sys/endian.h> | ||||
|  | ||||
| #endif /* _MACHINE_ENDIAN_H_ */ | ||||
| @@ -1,42 +0,0 @@ | ||||
| /*	$OpenBSD: endian.h,v 1.5 2011/03/12 22:27:48 guenther 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. | ||||
|  */ | ||||
|  | ||||
| #ifndef _MACHINE_ENDIAN_H_ | ||||
| #define _MACHINE_ENDIAN_H_ | ||||
|  | ||||
| /* Use GCC builtins */ | ||||
| #define __swap16md(x) __builtin_bswap16(x) | ||||
| #define __swap32md(x) __builtin_bswap32(x) | ||||
| #define __swap64md(x) __builtin_bswap64(x) | ||||
|  | ||||
| /* Tell sys/endian.h we have MD variants of the swap macros.  */ | ||||
| #define MD_SWAP | ||||
|  | ||||
| #define _BYTE_ORDER _LITTLE_ENDIAN | ||||
| #include <sys/types.h> | ||||
| #include <sys/endian.h> | ||||
|  | ||||
| #endif /* _MACHINE_ENDIAN_H_ */ | ||||
| @@ -44,53 +44,6 @@ | ||||
|  | ||||
| #include <endian.h> | ||||
|  | ||||
| #ifndef BYTE_ORDER | ||||
| #if (BSD >= 199103) | ||||
| # include <machine/endian.h> | ||||
| #else | ||||
| #ifdef __linux__ | ||||
| # include <endian.h> | ||||
| #else | ||||
| #define	LITTLE_ENDIAN	1234	/* least-significant byte first (vax, pc) */ | ||||
| #define	BIG_ENDIAN	4321	/* most-significant byte first (IBM, net) */ | ||||
| #define	PDP_ENDIAN	3412	/* LSB first in word, MSW first in long (pdp)*/ | ||||
|  | ||||
| #if defined(vax) || defined(ns32000) || defined(sun386) || defined(i386) || \ | ||||
|     defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \ | ||||
|     defined(__i386__) || defined(__i386) || defined(__amd64__) || \ | ||||
|     defined(__x86_64__) || defined(MIPSEL) || defined(_MIPSEL) || \ | ||||
|     defined(BIT_ZERO_ON_RIGHT) || defined(__alpha__) || defined(__alpha) || \ | ||||
|     (defined(__Lynx__) && defined(__x86__)) | ||||
| #define BYTE_ORDER	LITTLE_ENDIAN | ||||
| #endif | ||||
|  | ||||
| #if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \ | ||||
|     defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \ | ||||
|     defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\ | ||||
|     defined(apollo) || defined(__convex__) || defined(_CRAY) || \ | ||||
|     defined(__hppa) || defined(__hp9000) || \ | ||||
|     defined(__hp9000s300) || defined(__hp9000s700) || \ | ||||
|     defined(__hp3000s900) || defined(__hpux) || defined(MPE) || \ | ||||
|     defined (BIT_ZERO_ON_LEFT) || defined(m68k) || defined(__sparc) ||  \ | ||||
|     (defined(__Lynx__) && \ | ||||
|      (defined(__68k__) || defined(__sparc__) || defined(__powerpc__))) | ||||
| #define BYTE_ORDER	BIG_ENDIAN | ||||
| #endif | ||||
| #endif /* __linux */ | ||||
| #endif /* BSD */ | ||||
| #endif /* BYTE_ORDER */ | ||||
|  | ||||
| #if !defined(BYTE_ORDER) || \ | ||||
|     (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN && \ | ||||
|     BYTE_ORDER != PDP_ENDIAN) | ||||
| 	/* you must determine what the correct bit order is for | ||||
| 	 * your compiler - the next line is an intentional error | ||||
| 	 * which will force your compiles to bomb until you fix | ||||
| 	 * the above macros. | ||||
| 	 */ | ||||
|   #error "Undefined or invalid BYTE_ORDER"; | ||||
| #endif | ||||
|  | ||||
| /* | ||||
|  * Structure for query header.  The order of the fields is machine- and | ||||
|  * compiler-dependent, depending on the byte/bit order and the layout | ||||
|   | ||||
| @@ -1,5 +1,5 @@ | ||||
| /*
 | ||||
|  * Copyright (C) 2013 The Android Open Source Project | ||||
|  * Copyright (C) 2014 The Android Open Source Project | ||||
|  * All rights reserved. | ||||
|  * | ||||
|  * Redistribution and use in source and binary forms, with or without | ||||
| @@ -26,23 +26,10 @@ | ||||
|  * SUCH DAMAGE. | ||||
|  */ | ||||
| 
 | ||||
| #ifndef _AARCH64_ENDIAN_H_ | ||||
| #define _AARCH64_ENDIAN_H_ | ||||
| #ifndef _MACHINE_ENDIAN_H_ | ||||
| #define _MACHINE_ENDIAN_H_ | ||||
| 
 | ||||
| #ifdef __GNUC__ | ||||
| 
 | ||||
| /* Use GCC builtins */ | ||||
| #define __swap16md(x) __builtin_bswap16(x) | ||||
| #define __swap32md(x) __builtin_bswap32(x) | ||||
| #define __swap64md(x) __builtin_bswap64(x) | ||||
| 
 | ||||
| /* Tell sys/endian.h we have MD variants of the swap macros.  */ | ||||
| #define MD_SWAP | ||||
| 
 | ||||
| #endif  /* __GNUC__ */ | ||||
| 
 | ||||
| #define _BYTE_ORDER _LITTLE_ENDIAN | ||||
| #include <sys/types.h> | ||||
| /* This file is for BSD source compatibility only. Use <endian.h> or <sys/endian.h> instead. */ | ||||
| #include <sys/endian.h> | ||||
| 
 | ||||
| #endif /* _AARCH64_ENDIAN_H_ */ | ||||
| #endif /* _MACHINE_ENDIAN_H_ */ | ||||
| @@ -1,5 +1,3 @@ | ||||
| /*	$OpenBSD: endian.h,v 1.17 2006/01/06 18:53:05 millert Exp $	*/ | ||||
|  | ||||
| /*- | ||||
|  * Copyright (c) 1997 Niklas Hallqvist.  All rights reserved. | ||||
|  * | ||||
| @@ -24,155 +22,44 @@ | ||||
|  * 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 | ||||
| #define _BYTE_ORDER _LITTLE_ENDIAN | ||||
| #define __LITTLE_ENDIAN_BITFIELD | ||||
|  | ||||
| #if __BSD_VISIBLE | ||||
| #define LITTLE_ENDIAN	_LITTLE_ENDIAN | ||||
| #define BIG_ENDIAN	_BIG_ENDIAN | ||||
| #define PDP_ENDIAN	_PDP_ENDIAN | ||||
| #define BYTE_ORDER	_BYTE_ORDER | ||||
| #define LITTLE_ENDIAN _LITTLE_ENDIAN | ||||
| #define BIG_ENDIAN _BIG_ENDIAN | ||||
| #define PDP_ENDIAN _PDP_ENDIAN | ||||
| #define BYTE_ORDER _BYTE_ORDER | ||||
| #endif | ||||
|  | ||||
| #ifdef __GNUC__ | ||||
| #ifndef __LITTLE_ENDIAN | ||||
| #define __LITTLE_ENDIAN _LITTLE_ENDIAN | ||||
| #endif | ||||
| #ifndef __BIG_ENDIAN | ||||
| #define __BIG_ENDIAN _BIG_ENDIAN | ||||
| #endif | ||||
| #define __BYTE_ORDER _BYTE_ORDER | ||||
|  | ||||
| #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) | ||||
| #define __swap16 __builtin_bswap16 | ||||
| #define __swap32 __builtin_bswap32 | ||||
| #define __swap64 __builtin_bswap64 | ||||
|  | ||||
| #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 | ||||
| @@ -205,49 +92,6 @@ __END_DECLS | ||||
| #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)) | ||||
| @@ -255,16 +99,6 @@ __END_DECLS | ||||
| #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. | ||||
|   | ||||
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	 Elliott Hughes
					Elliott Hughes