diff options
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/sysdeps/linux/bfin/bits/byteswap.h | 92 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/bits/byteswap-common.h | 108 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/bits/byteswap.h | 88 | ||||
| -rw-r--r-- | libc/sysdeps/linux/cris/bits/byteswap.h | 79 | ||||
| -rw-r--r-- | libc/sysdeps/linux/h8300/bits/byteswap.h | 61 | ||||
| -rw-r--r-- | libc/sysdeps/linux/i386/bits/byteswap.h | 121 | ||||
| -rw-r--r-- | libc/sysdeps/linux/ia64/bits/byteswap.h | 100 | ||||
| -rw-r--r-- | libc/sysdeps/linux/m68k/bits/byteswap.h | 50 | ||||
| -rw-r--r-- | libc/sysdeps/linux/v850/bits/byteswap.h | 48 | ||||
| -rw-r--r-- | libc/sysdeps/linux/x86_64/bits/byteswap.h | 127 |
10 files changed, 242 insertions, 632 deletions
diff --git a/libc/sysdeps/linux/bfin/bits/byteswap.h b/libc/sysdeps/linux/bfin/bits/byteswap.h index 74b87d94c..4fd3c997a 100644 --- a/libc/sysdeps/linux/bfin/bits/byteswap.h +++ b/libc/sysdeps/linux/bfin/bits/byteswap.h @@ -7,88 +7,28 @@ * Licensed under the GPL-2 or later. */ -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H 1 +#ifndef _ASM_BITS_BYTESWAP_H +#define _ASM_BITS_BYTESWAP_H 1 -/* Swap bytes in 16 bit value. */ -#define __bswap_constant_16(x) \ - ((((x) >> 8) & 0xffu) | (((x) & 0xffu) << 8)) - -#ifdef __GNUC__ -# define __bswap_16(x) \ +#define __bswap_non_constant_16(x) (__extension__ \ - ({ register unsigned short int __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_16 (__x); \ - else \ - __asm__ ("%0 = PACK (%1.L, %1.L);" \ - "%0 >>= 8;" \ - : "=d" (__v) \ - : "d" (__x)); \ + ({ register unsigned short int __v; \ + __asm__ ("%0 = PACK (%1.L, %1.L);" \ + "%0 >>= 8;" \ + : "=d" (__v) \ + : "d" (x)); \ __v; })) -#else -static __inline unsigned short int -__bswap_16 (unsigned short int __bsx) -{ - return __bswap_constant_16 (__bsx); -} -#endif -/* Swap bytes in 32 bit value. */ -#define __bswap_constant_32(x) \ - ((((x) & 0xff000000u) >> 24) | (((x) & 0x00ff0000u) >> 8) | \ - (((x) & 0x0000ff00u) << 8) | (((x) & 0x000000ffu) << 24)) - -#ifdef __GNUC__ -# define __bswap_32(x) \ +#define __bswap_non_constant_32(x) \ (__extension__ \ - ({ register unsigned int __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_32 (__x); \ - else \ - __asm__ ("%1 = %0 >> 8 (V);" \ - "%0 = %0 << 8 (V);" \ - "%0 = %0 | %1;" \ - "%1 = PACK(%0.L, %0.H);" \ - : "+d"(__x), "=&d"(__v)); \ + ({ register unsigned int __v; \ + __asm__ ("%1 = %0 >> 8 (V);" \ + "%0 = %0 << 8 (V);" \ + "%0 = %0 | %1;" \ + "%1 = PACK(%0.L, %0.H);" \ + : "+d"(x), "=&d"(__v)); \ __v; })) -#else -static __inline unsigned int -__bswap_32 (unsigned int __bsx) -{ - return __bswap_constant_32 (__bsx); -} -#endif -#if defined __GNUC__ && __GNUC__ >= 2 -/* Swap bytes in 64 bit value. */ -# define __bswap_constant_64(x) \ - ((((x) & 0xff00000000000000ull) >> 56) \ - | (((x) & 0x00ff000000000000ull) >> 40) \ - | (((x) & 0x0000ff0000000000ull) >> 24) \ - | (((x) & 0x000000ff00000000ull) >> 8) \ - | (((x) & 0x00000000ff000000ull) << 8) \ - | (((x) & 0x0000000000ff0000ull) << 24) \ - | (((x) & 0x000000000000ff00ull) << 40) \ - | (((x) & 0x00000000000000ffull) << 56)) - -# define __bswap_64(x) \ - (__extension__ \ - ({ union { __extension__ unsigned long long int __ll; \ - unsigned int __l[2]; } __w, __r; \ - if (__builtin_constant_p (x)) \ - __r.__ll = __bswap_constant_64 (x); \ - else \ - { \ - __w.__ll = (x); \ - __r.__l[0] = __bswap_32 (__w.__l[1]); \ - __r.__l[1] = __bswap_32 (__w.__l[0]); \ - } \ - __r.__ll; })) #endif -#endif /* _BITS_BYTESWAP_H */ +#include <bits/byteswap-common.h> diff --git a/libc/sysdeps/linux/common/bits/byteswap-common.h b/libc/sysdeps/linux/common/bits/byteswap-common.h new file mode 100644 index 000000000..8586ed008 --- /dev/null +++ b/libc/sysdeps/linux/common/bits/byteswap-common.h @@ -0,0 +1,108 @@ +/* Macros to swap the order of bytes in integer values. + Copyright (C) 1997,1998,2000,2001,2002,2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#if !defined _BYTESWAP_H && !defined _NETINET_IN_H +# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." +#endif + +#ifndef _BITS_BYTESWAP_H +#define _BITS_BYTESWAP_H 1 + +/* Swap bytes in 16 bit value. */ +#define __bswap_constant_16(x) \ + ((((x) >> 8) & 0xffu) | (((x) & 0xffu) << 8)) + +#ifndef __bswap_non_constant_16 +# define __bswap_non_constant_16(x) __bswap_constant_16(x) +#endif +#ifdef __GNUC__ +# define __bswap_16(x) \ + (__extension__ \ + ({ unsigned short int __bsv, __bsx = (x); \ + if (__builtin_constant_p (__bsx)) \ + __bsv = __bswap_constant_16 (__bsx); \ + else \ + __bsv = __bswap_non_constant_16 (__bsx); \ + __bsv; })) +#else +static __inline unsigned short int +__bswap_16 (unsigned short int __bsx) +{ + return __bswap_constant_16 (__bsx); +} +#endif + +/* Swap bytes in 32 bit value. */ +#define __bswap_constant_32(x) \ + ((((x) & 0xff000000u) >> 24) | (((x) & 0x00ff0000u) >> 8) | \ + (((x) & 0x0000ff00u) << 8) | (((x) & 0x000000ffu) << 24)) + +#ifndef __bswap_non_constant_32 +# define __bswap_non_constant_32(x) __bswap_constant_32(x) +#endif +#ifdef __GNUC__ +# define __bswap_32(x) \ + (__extension__ \ + ({ unsigned int __bsv, __bsx = (x); \ + if (__builtin_constant_p (__bsx)) \ + __bsv = __bswap_constant_32 (__bsx); \ + else \ + __bsv = __bswap_non_constant_32 (__bsx); \ + __bsv; })) +#else +static __inline unsigned int +__bswap_32 (unsigned int __bsx) +{ + return __bswap_constant_32 (__bsx); +} +#endif + +#if defined __GNUC__ && __GNUC__ >= 2 +/* Swap bytes in 64 bit value. */ +# define __bswap_constant_64(x) \ + ((((x) & 0xff00000000000000ull) >> 56) \ + | (((x) & 0x00ff000000000000ull) >> 40) \ + | (((x) & 0x0000ff0000000000ull) >> 24) \ + | (((x) & 0x000000ff00000000ull) >> 8) \ + | (((x) & 0x00000000ff000000ull) << 8) \ + | (((x) & 0x0000000000ff0000ull) << 24) \ + | (((x) & 0x000000000000ff00ull) << 40) \ + | (((x) & 0x00000000000000ffull) << 56)) + +# ifndef __bswap_non_constant_64 +# define __bswap_non_constant_64(x) \ + (__extension__ \ + ({ union { __extension__ unsigned long long int __ll; \ + unsigned int __l[2]; } __w, __r; \ + __w.__ll = (x); \ + __r.__l[0] = __bswap_non_constant_32 (__w.__l[1]); \ + __r.__l[1] = __bswap_non_constant_32 (__w.__l[0]); \ + __r.__ll; })) +# endif +# define __bswap_64(x) \ + (__extension__ \ + ({ __extension__ unsigned long long int __ll; \ + if (__builtin_constant_p (x)) \ + __ll = __bswap_constant_64 (x); \ + else \ + __ll = __bswap_non_constant_64 (x); \ + __ll; })) +#endif + +#endif /* _BITS_BYTESWAP_H */ diff --git a/libc/sysdeps/linux/common/bits/byteswap.h b/libc/sysdeps/linux/common/bits/byteswap.h index 949ed0bc9..3f02506b6 100644 --- a/libc/sysdeps/linux/common/bits/byteswap.h +++ b/libc/sysdeps/linux/common/bits/byteswap.h @@ -1,87 +1 @@ -/* Macros to swap the order of bytes in integer values. - Copyright (C) 1997,1998,2000,2001,2002,2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H 1 - -/* Swap bytes in 16 bit value. */ -#define __bswap_constant_16(x) \ - ((((x) >> 8) & 0xffu) | (((x) & 0xffu) << 8)) - -#ifdef __GNUC__ -# define __bswap_16(x) \ - (__extension__ \ - ({ unsigned short int __bsx = (x); __bswap_constant_16 (__bsx); })) -#else -static __inline unsigned short int -__bswap_16 (unsigned short int __bsx) -{ - return __bswap_constant_16 (__bsx); -} -#endif - -/* Swap bytes in 32 bit value. */ -#define __bswap_constant_32(x) \ - ((((x) & 0xff000000u) >> 24) | (((x) & 0x00ff0000u) >> 8) | \ - (((x) & 0x0000ff00u) << 8) | (((x) & 0x000000ffu) << 24)) - -#ifdef __GNUC__ -# define __bswap_32(x) \ - (__extension__ \ - ({ register unsigned int __bsx = (x); __bswap_constant_32 (__bsx); })) -#else -static __inline unsigned int -__bswap_32 (unsigned int __bsx) -{ - return __bswap_constant_32 (__bsx); -} -#endif - -#if defined __GNUC__ && __GNUC__ >= 2 -/* Swap bytes in 64 bit value. */ -# define __bswap_constant_64(x) \ - ((((x) & 0xff00000000000000ull) >> 56) \ - | (((x) & 0x00ff000000000000ull) >> 40) \ - | (((x) & 0x0000ff0000000000ull) >> 24) \ - | (((x) & 0x000000ff00000000ull) >> 8) \ - | (((x) & 0x00000000ff000000ull) << 8) \ - | (((x) & 0x0000000000ff0000ull) << 24) \ - | (((x) & 0x000000000000ff00ull) << 40) \ - | (((x) & 0x00000000000000ffull) << 56)) - -# define __bswap_64(x) \ - (__extension__ \ - ({ union { __extension__ unsigned long long int __ll; \ - unsigned int __l[2]; } __w, __r; \ - if (__builtin_constant_p (x)) \ - __r.__ll = __bswap_constant_64 (x); \ - else \ - { \ - __w.__ll = (x); \ - __r.__l[0] = __bswap_32 (__w.__l[1]); \ - __r.__l[1] = __bswap_32 (__w.__l[0]); \ - } \ - __r.__ll; })) -#endif - -#endif /* _BITS_BYTESWAP_H */ +#include <bits/byteswap-common.h> diff --git a/libc/sysdeps/linux/cris/bits/byteswap.h b/libc/sysdeps/linux/cris/bits/byteswap.h index 4027456ac..a82f9c098 100644 --- a/libc/sysdeps/linux/cris/bits/byteswap.h +++ b/libc/sysdeps/linux/cris/bits/byteswap.h @@ -1,83 +1,20 @@ -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H 1 +#ifndef _ASM_BITS_BYTESWAP_H +#define _ASM_BITS_BYTESWAP_H 1 /* CRIS specific byte swap operations: 16, 32 and 64-bit */ -/* Swap bytes in 16 bit value. */ -#define __bswap_constant_16(x) \ -({ \ - unsigned short __x = (x); \ - ((unsigned short)( \ - (((unsigned short)(__x) & (unsigned short)0x00ffu) << 8) | \ - (((unsigned short)(__x) & (unsigned short)0xff00u) >> 8) )); \ -}) - -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_16(x) \ +#define __bswap_non_constant_16(x) \ __extension__ \ ({ unsigned short __bswap_16_v; \ - if (__builtin_constant_p (x)) \ - __bswap_16_v = __bswap_constant_16 (x); \ - else \ - __asm__ ("swapb %0" : "=r" (__bswap_16_v) : "0" (x)); \ + __asm__ ("swapb %0" : "=r" (__bswap_16_v) : "0" (x)); \ __bswap_16_v; }) -#else -# define __bswap_16(x) __bswap_constant_16 (x) -#endif - - -/* Swap bytes in 32 bit value. */ -#define __bswap_constant_32(x) \ -({ \ - unsigned long __x = (x); \ - ((unsigned long)( \ - (((unsigned long)(__x) & (unsigned long)0x000000fful) << 24) | \ - (((unsigned long)(__x) & (unsigned long)0x0000ff00ul) << 8) | \ - (((unsigned long)(__x) & (unsigned long)0x00ff0000ul) >> 8) | \ - (((unsigned long)(__x) & (unsigned long)0xff000000ul) >> 24) )); \ -}) -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_32(x) \ +#define __bswap_non_constant_32(x) \ __extension__ \ - ({ unsigned long __bswap_32_v; \ - if (__builtin_constant_p (x)) \ - __bswap_32_v = __bswap_constant_32 (x); \ - else \ - __asm__ ("swapwb %0" : "=r" (__bswap_32_v) : "0" (x)); \ + ({ unsigned int __bswap_32_v; \ + __asm__ ("swapwb %0" : "=r" (__bswap_32_v) : "0" (x)); \ __bswap_32_v; }) -#else -# define __bswap_32(x) __bswap_constant_32 (x) -#endif - - -/* Swap bytes in 64 bit value. */ -# define __bswap_constant_64(x) \ - ((((x) & 0xff00000000000000ull) >> 56) \ - | (((x) & 0x00ff000000000000ull) >> 40) \ - | (((x) & 0x0000ff0000000000ull) >> 24) \ - | (((x) & 0x000000ff00000000ull) >> 8) \ - | (((x) & 0x00000000ff000000ull) << 8) \ - | (((x) & 0x0000000000ff0000ull) << 24) \ - | (((x) & 0x000000000000ff00ull) << 40) \ - | (((x) & 0x00000000000000ffull) << 56)) -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_64(x) \ - (__extension__ \ - ({ union { __extension__ unsigned long long int __ll; \ - unsigned int __l[2]; } __w, __r; \ - if (__builtin_constant_p (x)) \ - __r.__ll = __bswap_constant_64 (x); \ - else \ - { \ - __w.__ll = (x); \ - __r.__l[0] = __bswap_32 (__w.__l[1]); \ - __r.__l[1] = __bswap_32 (__w.__l[0]); \ - } \ - __r.__ll; })) -#else -# define __bswap_64(x) __bswap_constant_64 (x) #endif -#endif /* _BITS_BYTESWAP_H */ +#include <bits/byteswap-common.h> diff --git a/libc/sysdeps/linux/h8300/bits/byteswap.h b/libc/sysdeps/linux/h8300/bits/byteswap.h index dc56467f2..781a4dbfa 100644 --- a/libc/sysdeps/linux/h8300/bits/byteswap.h +++ b/libc/sysdeps/linux/h8300/bits/byteswap.h @@ -17,51 +17,24 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -/* Swap bytes in 16 bit value. We don't provide an assembler version - because GCC is smart enough to generate optimal assembler output, and - this allows for better cse. */ -#define __bswap_16(x) \ - ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) +#ifndef _ASM_BITS_BYTESWAP_H +#define _ASM_BITS_BYTESWAP_H 1 -/* Swap bytes in 32 bit value. */ -#define __bswap_constant_32(x) \ - ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ - (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) - -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_32(x) \ - __extension__ \ - ({ unsigned int __v; \ - if (__builtin_constant_p (x)) \ - __v = __bswap_constant_32 (x); \ - else \ - __asm__ __volatile__ ("mov.l %0,er0\n\t" \ - "mov.b r0l,r1h\n\t" \ - "mov.b r0h,r1l\n\t" \ - "mov.w r1,e1\n\t" \ - "mov.w e0,r0\n\t" \ - "mov.b r0l,r1h\n\t" \ - "mov.b r0h,r1l\n\t" \ - "mov.l er1,%0" \ - : "=d" (__v) \ - : "0" (x): "er0","er1"); \ +#define __bswap_non_constant_32(x) \ + __extension__ \ + ({ unsigned int __v; \ + __asm__ __volatile__ ("mov.l %0,er0\n\t" \ + "mov.b r0l,r1h\n\t" \ + "mov.b r0h,r1l\n\t" \ + "mov.w r1,e1\n\t" \ + "mov.w e0,r0\n\t" \ + "mov.b r0l,r1h\n\t" \ + "mov.b r0h,r1l\n\t" \ + "mov.l er1,%0" \ + : "=d" (__v) \ + : "0" (x): "er0","er1"); \ __v; }) -#else -# define __bswap_32(x) __bswap_constant_32 (x) -#endif -#if defined __GNUC__ && __GNUC__ >= 2 -/* Swap bytes in 64 bit value. */ -# define __bswap_64(x) \ - __extension__ \ - ({ union { unsigned long long int __ll; \ - unsigned long int __l[2]; } __v, __r; \ - __v.__ll = (x); \ - __r.__l[0] = __bswap_32 (__v.__l[1]); \ - __r.__l[1] = __bswap_32 (__v.__l[0]); \ - __r.__ll; }) #endif + +#include <bits/byteswap-common.h> diff --git a/libc/sysdeps/linux/i386/bits/byteswap.h b/libc/sysdeps/linux/i386/bits/byteswap.h index 32b21920d..052eda381 100644 --- a/libc/sysdeps/linux/i386/bits/byteswap.h +++ b/libc/sysdeps/linux/i386/bits/byteswap.h @@ -17,117 +17,40 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H 1 +#ifndef _ASM_BITS_BYTESWAP_H +#define _ASM_BITS_BYTESWAP_H 1 -/* Swap bytes in 16 bit value. */ -#define __bswap_constant_16(x) \ - ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) - -#ifdef __GNUC__ -# if __GNUC__ >= 2 -# define __bswap_16(x) \ +#define __bswap_non_constant_16(x) \ (__extension__ \ - ({ register unsigned short int __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_16 (__x); \ - else \ - __asm__ ("rorw $8, %w0" \ - : "=r" (__v) \ - : "0" (__x) \ - : "cc"); \ + ({ register unsigned short int __v; \ + __asm__ ("rorw $8, %w0" \ + : "=r" (__v) \ + : "0" (x) \ + : "cc"); \ __v; })) -# else -/* This is better than nothing. */ -# define __bswap_16(x) \ - (__extension__ \ - ({ register unsigned short int __x = (x); __bswap_constant_16 (__x); })) -# endif -#else -static __inline unsigned short int -__bswap_16 (unsigned short int __bsx) -{ - return __bswap_constant_16 (__bsx); -} -#endif - -/* Swap bytes in 32 bit value. */ -#define __bswap_constant_32(x) \ - ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ - (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) -#ifdef __GNUC__ -# if __GNUC__ >= 2 /* To swap the bytes in a word the i486 processors and up provide the `bswap' opcode. On i386 we have to use three instructions. */ -# if !defined __i486__ && !defined __pentium__ && !defined __pentiumpro__ \ +#if !defined __i486__ && !defined __pentium__ && !defined __pentiumpro__ \ && !defined __pentium4__ -# define __bswap_32(x) \ +# define __bswap_non_constant_32(x) \ (__extension__ \ - ({ register unsigned int __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_32 (__x); \ - else \ - __asm__ ("rorw $8, %w0;" \ - "rorl $16, %0;" \ - "rorw $8, %w0" \ - : "=r" (__v) \ - : "0" (__x) \ - : "cc"); \ + ({ register unsigned int __v; \ + __asm__ ("rorw $8, %w0;" \ + "rorl $16, %0;" \ + "rorw $8, %w0" \ + : "=r" (__v) \ + : "0" (x) \ + : "cc"); \ __v; })) -# else -# define __bswap_32(x) \ +#else +# define __bswap_non_constant_32(x) \ (__extension__ \ - ({ register unsigned int __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_32 (__x); \ - else \ - __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); \ + ({ register unsigned int __v; \ + __asm__ ("bswap %0" : "=r" (__v) : "0" (x)); \ __v; })) -# endif -# else -# define __bswap_32(x) \ - (__extension__ \ - ({ register unsigned int __x = (x); __bswap_constant_32 (__x); })) -# endif -#else -static __inline unsigned int -__bswap_32 (unsigned int __bsx) -{ - return __bswap_constant_32 (__bsx); -} #endif - -#if defined __GNUC__ && __GNUC__ >= 2 -/* Swap bytes in 64 bit value. */ -#define __bswap_constant_64(x) \ - ((((x) & 0xff00000000000000ull) >> 56) \ - | (((x) & 0x00ff000000000000ull) >> 40) \ - | (((x) & 0x0000ff0000000000ull) >> 24) \ - | (((x) & 0x000000ff00000000ull) >> 8) \ - | (((x) & 0x00000000ff000000ull) << 8) \ - | (((x) & 0x0000000000ff0000ull) << 24) \ - | (((x) & 0x000000000000ff00ull) << 40) \ - | (((x) & 0x00000000000000ffull) << 56)) - -# define __bswap_64(x) \ - (__extension__ \ - ({ union { __extension__ unsigned long long int __ll; \ - unsigned long int __l[2]; } __w, __r; \ - if (__builtin_constant_p (x)) \ - __r.__ll = __bswap_constant_64 (x); \ - else \ - { \ - __w.__ll = (x); \ - __r.__l[0] = __bswap_32 (__w.__l[1]); \ - __r.__l[1] = __bswap_32 (__w.__l[0]); \ - } \ - __r.__ll; })) #endif -#endif /* _BITS_BYTESWAP_H */ +#include <bits/byteswap-common.h> diff --git a/libc/sysdeps/linux/ia64/bits/byteswap.h b/libc/sysdeps/linux/ia64/bits/byteswap.h index 6862aa0b6..346c82c04 100644 --- a/libc/sysdeps/linux/ia64/bits/byteswap.h +++ b/libc/sysdeps/linux/ia64/bits/byteswap.h @@ -17,94 +17,36 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H 1 - -/* Swap bytes in 16 bit value. */ -#define __bswap_constant_16(x) \ - ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) +#ifndef _ASM_BITS_BYTESWAP_H +#define _ASM_BITS_BYTESWAP_H 1 -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_16(x) \ +#define __bswap_non_constant_16(x) \ (__extension__ \ - ({ register unsigned short int __v, __x = (x); \ - if (__builtin_constant_p (x)) \ - __v = __bswap_constant_16 (__x); \ - else \ - __asm__ __volatile__ ("shl %0 = %1, 48 ;;" \ - "mux1 %0 = %0, @rev ;;" \ - : "=r" (__v) \ - : "r" ((unsigned short int) (__x))); \ + ({ register unsigned short int __v; \ + __asm__ __volatile__ ("shl %0 = %1, 48 ;;" \ + "mux1 %0 = %0, @rev ;;" \ + : "=r" (__v) \ + : "r" ((unsigned short int) (x))); \ __v; })) -#else -/* This is better than nothing. */ -static __inline unsigned short int -__bswap_16 (unsigned short int __bsx) -{ - return __bswap_constant_16 (__bsx); -} -#endif - -/* Swap bytes in 32 bit value. */ -#define __bswap_constant_32(x) \ - ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ - (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) - -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_32(x) \ +#define __bswap_non_constant_32(x) \ (__extension__ \ - ({ register unsigned int __v, __x = (x); \ - if (__builtin_constant_p (x)) \ - __v = __bswap_constant_32 (__x); \ - else \ - __asm__ __volatile__ ("shl %0 = %1, 32 ;;" \ - "mux1 %0 = %0, @rev ;;" \ - : "=r" (__v) \ - : "r" ((unsigned int) (__x))); \ + ({ register unsigned int __v; \ + __asm__ __volatile__ ("shl %0 = %1, 32 ;;" \ + "mux1 %0 = %0, @rev ;;" \ + : "=r" (__v) \ + : "r" ((unsigned int) (x))); \ __v; })) -#else -static __inline unsigned int -__bswap_32 (unsigned int __bsx) -{ - return __bswap_constant_32 (__bsx); -} -#endif - -/* Swap bytes in 64 bit value. */ -#define __bswap_constant_64(x) \ - ((((x) & 0xff00000000000000ul) >> 56) \ - | (((x) & 0x00ff000000000000ul) >> 40) \ - | (((x) & 0x0000ff0000000000ul) >> 24) \ - | (((x) & 0x000000ff00000000ul) >> 8) \ - | (((x) & 0x00000000ff000000ul) << 8) \ - | (((x) & 0x0000000000ff0000ul) << 24) \ - | (((x) & 0x000000000000ff00ul) << 40) \ - | (((x) & 0x00000000000000fful) << 56)) - -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_64(x) \ +#define __bswap_non_constant_64(x) \ (__extension__ \ - ({ register unsigned long int __v, __x = (x); \ - if (__builtin_constant_p (x)) \ - __v = __bswap_constant_64 (__x); \ - else \ - __asm__ __volatile__ ("mux1 %0 = %1, @rev ;;" \ - : "=r" (__v) \ - : "r" ((unsigned long int) (__x))); \ + ({ register unsigned long int __v; \ + __asm__ __volatile__ ("mux1 %0 = %1, @rev ;;" \ + : "=r" (__v) \ + : "r" ((unsigned long int) (x))); \ __v; })) +#endif -#else -static __inline unsigned long int -__bswap_64 (unsigned long int __bsx) -{ - return __bswap_constant_64 (__bsx); -} #endif -#endif /* _BITS_BYTESWAP_H */ +#include <bits/byteswap-common.h> diff --git a/libc/sysdeps/linux/m68k/bits/byteswap.h b/libc/sysdeps/linux/m68k/bits/byteswap.h index f5ec91682..488474212 100644 --- a/libc/sysdeps/linux/m68k/bits/byteswap.h +++ b/libc/sysdeps/linux/m68k/bits/byteswap.h @@ -17,51 +17,21 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H 1 - -/* Swap bytes in 16 bit value. We don't provide an assembler version - because GCC is smart enough to generate optimal assembler output, and - this allows for better cse. */ -#define __bswap_16(x) \ - ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) - -/* Swap bytes in 32 bit value. */ -#define __bswap_constant_32(x) \ - ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ - (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) +#ifndef _ASM_BITS_BYTESWAP_H +#define _ASM_BITS_BYTESWAP_H 1 -#if defined __GNUC__ && __GNUC__ >= 2 && !defined __mcoldfire__ -# define __bswap_32(x) \ +#if !defined __mcoldfire__ +# define __bswap_non_constant_32(x) \ __extension__ \ ({ unsigned int __bswap_32_v; \ - if (__builtin_constant_p (x)) \ - __bswap_32_v = __bswap_constant_32 (x); \ - else \ - __asm__ __volatile__ ("ror%.w %#8, %0;" \ - "swap %0;" \ - "ror%.w %#8, %0" \ - : "=d" (__bswap_32_v) \ - : "0" ((unsigned int) (x))); \ + __asm__ __volatile__ ("ror%.w %#8, %0;" \ + "swap %0;" \ + "ror%.w %#8, %0" \ + : "=d" (__bswap_32_v) \ + : "0" ((unsigned int) (x))); \ __bswap_32_v; }) -#else -# define __bswap_32(x) __bswap_constant_32 (x) #endif -#if defined __GNUC__ && __GNUC__ >= 2 -/* Swap bytes in 64 bit value. */ -# define __bswap_64(x) \ - __extension__ \ - ({ union { unsigned long long int __ll; \ - unsigned long int __l[2]; } __bswap_64_v, __bswap_64_r; \ - __bswap_64_v.__ll = (x); \ - __bswap_64_r.__l[0] = __bswap_32 (__bswap_64_v.__l[1]); \ - __bswap_64_r.__l[1] = __bswap_32 (__bswap_64_v.__l[0]); \ - __bswap_64_r.__ll; }) #endif -#endif /* _BITS_BYTESWAP_H */ +#include <bits/byteswap-common.h> diff --git a/libc/sysdeps/linux/v850/bits/byteswap.h b/libc/sysdeps/linux/v850/bits/byteswap.h index 44fbee488..b2e1ddb90 100644 --- a/libc/sysdeps/linux/v850/bits/byteswap.h +++ b/libc/sysdeps/linux/v850/bits/byteswap.h @@ -11,53 +11,21 @@ * directory of this archive for more details. */ -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -/* Swap bytes in 16 bit value. */ -#define __bswap_constant_16(x) \ - ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) +#ifndef _ASM_BITS_BYTESWAP_H +#define _ASM_BITS_BYTESWAP_H 1 -#ifdef __GNUC__ -# define __bswap_16(x) \ +#define __bswap_non_constant_16(x) \ (__extension__ \ ({ unsigned long int __bswap_16_v; \ - if (__builtin_constant_p (x)) \ - __bswap_16_v = __bswap_constant_16 (x); \ - else \ - __asm__ ("bsh %1, %0" : "=r" (__bswap_16_v) : "r" (x)); \ + __asm__ ("bsh %1, %0" : "=r" (__bswap_16_v) : "r" (x)); \ __bswap_16_v; })) -#else -# define __bswap_16(x) __bswap_constant_16 (x) -#endif -/* Swap bytes in 32 bit value. */ -#define __bswap_constant_32(x) \ - ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ - (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) - -#ifdef __GNUC__ -# define __bswap_32(x) \ +# define __bswap_non_constant_32(x) \ (__extension__ \ ({ unsigned long int __bswap_32_v; \ - if (__builtin_constant_p (x)) \ - __bswap_32_v = __bswap_constant_32 (x); \ - else \ - __asm__ ("bsw %1, %0" : "=r" (__bswap_32_v) : "r" (x)); \ + __asm__ ("bsw %1, %0" : "=r" (__bswap_32_v) : "r" (x)); \ __bswap_32_v; })) -#else -# define __bswap_32(x) __bswap_constant_32 (x) -#endif -#if defined __GNUC__ && __GNUC__ >= 2 -/* Swap bytes in 64 bit value. */ -# define __bswap_64(x) \ - (__extension__ \ - ({ union { unsigned long long int __ll; \ - unsigned long int __l[2]; } __bswap_64_v, __bswap_64_r; \ - __bswap_64_v.__ll = (x); \ - __bswap_64_r.__l[0] = __bswap_32 (__bswap_64_v.__l[1]); \ - __bswap_64_r.__l[1] = __bswap_32 (__bswap_64_v.__l[0]); \ - __bswap_64_r.__ll; })) #endif + +#include <bits/byteswap-common.h> diff --git a/libc/sysdeps/linux/x86_64/bits/byteswap.h b/libc/sysdeps/linux/x86_64/bits/byteswap.h index e1c861c75..a9cf23d75 100644 --- a/libc/sysdeps/linux/x86_64/bits/byteswap.h +++ b/libc/sysdeps/linux/x86_64/bits/byteswap.h @@ -17,117 +17,52 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H 1 +#ifndef _ASM_BITS_BYTESWAP_H +#define _ASM_BITS_BYTESWAP_H 1 #include <bits/wordsize.h> -/* Swap bytes in 16 bit value. */ -#define __bswap_constant_16(x) \ - ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) - -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_16(x) \ +#define __bswap_non_constant_16(x) \ (__extension__ \ - ({ register unsigned short int __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_16 (__x); \ - else \ - __asm__ ("rorw $8, %w0" \ - : "=r" (__v) \ - : "0" (__x) \ - : "cc"); \ + ({ register unsigned short int __v; \ + __asm__ ("rorw $8, %w0" \ + : "=r" (__v) \ + : "0" (x) \ + : "cc"); \ __v; })) -#else -/* This is better than nothing. */ -# define __bswap_16(x) \ - (__extension__ \ - ({ register unsigned short int __x = (x); __bswap_constant_16 (__x); })) -#endif - - -/* Swap bytes in 32 bit value. */ -#define __bswap_constant_32(x) \ - ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ - (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) -#if defined __GNUC__ && __GNUC__ >= 2 -# if __WORDSIZE == 64 || (defined __i486__ || defined __pentium__ \ - || defined __pentiumpro__ || defined __pentium4__ \ - || defined __k8__ || defined __athlon__ \ - || defined __k6__) +#if __WORDSIZE == 64 || (defined __i486__ || defined __pentium__ \ + || defined __pentiumpro__ || defined __pentium4__ \ + || defined __k8__ || defined __athlon__ \ + || defined __k6__) /* To swap the bytes in a word the i486 processors and up provide the `bswap' opcode. On i386 we have to use three instructions. */ -# define __bswap_32(x) \ +# define __bswap_non_constant_32(x) \ (__extension__ \ - ({ register unsigned int __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_32 (__x); \ - else \ - __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); \ + ({ register unsigned int __v; \ + __asm__ ("bswap %0" : "=r" (__v) : "0" (x)); \ __v; })) -# else -# define __bswap_32(x) \ - (__extension__ \ - ({ register unsigned int __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_32 (__x); \ - else \ - __asm__ ("rorw $8, %w0;" \ - "rorl $16, %0;" \ - "rorw $8, %w0" \ - : "=r" (__v) \ - : "0" (__x) \ - : "cc"); \ - __v; })) -# endif #else -# define __bswap_32(x) \ +# define __bswap_non_constant_32(x) \ (__extension__ \ - ({ register unsigned int __x = (x); __bswap_constant_32 (__x); })) + ({ register unsigned int __v; \ + __asm__ ("rorw $8, %w0;" \ + "rorl $16, %0;" \ + "rorw $8, %w0" \ + : "=r" (__v) \ + : "0" (x) \ + : "cc"); \ + __v; })) #endif - -#if defined __GNUC__ && __GNUC__ >= 2 -/* Swap bytes in 64 bit value. */ -# define __bswap_constant_64(x) \ - ((((x) & 0xff00000000000000ull) >> 56) \ - | (((x) & 0x00ff000000000000ull) >> 40) \ - | (((x) & 0x0000ff0000000000ull) >> 24) \ - | (((x) & 0x000000ff00000000ull) >> 8) \ - | (((x) & 0x00000000ff000000ull) << 8) \ - | (((x) & 0x0000000000ff0000ull) << 24) \ - | (((x) & 0x000000000000ff00ull) << 40) \ - | (((x) & 0x00000000000000ffull) << 56)) - -# if __WORDSIZE == 64 -# define __bswap_64(x) \ +#if __WORDSIZE == 64 +# define __bswap_non_constant_64(x) \ (__extension__ \ - ({ register unsigned long __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_64 (__x); \ - else \ - __asm__ ("bswap %q0" : "=r" (__v) : "0" (__x)); \ + ({ register unsigned long __v; \ + __asm__ ("bswap %q0" : "=r" (__v) : "0" (x)); \ __v; })) -# else -# define __bswap_64(x) \ - (__extension__ \ - ({ union { __extension__ unsigned long long int __ll; \ - unsigned int __l[2]; } __w, __r; \ - if (__builtin_constant_p (x)) \ - __r.__ll = __bswap_constant_64 (x); \ - else \ - { \ - __w.__ll = (x); \ - __r.__l[0] = __bswap_32 (__w.__l[1]); \ - __r.__l[1] = __bswap_32 (__w.__l[0]); \ - } \ - __r.__ll; })) -# endif #endif -#endif /* _BITS_BYTESWAP_H */ +#endif + +#include <bits/byteswap-common.h> |