Merge "Simplify our endian.h implementation."

This commit is contained in:
Elliott Hughes 2014-12-09 05:02:36 +00:00 committed by Gerrit Code Review
commit 5536044b78
7 changed files with 21 additions and 472 deletions

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@ -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_ */

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@ -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_ */

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@ -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_ */

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@ -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_ */

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@ -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

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@ -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_ */

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@ -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.