diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/ia64/bits/byteswap-16.h | 42 | ||||
| -rw-r--r-- | sysdeps/ia64/bits/byteswap.h | 100 | ||||
| -rw-r--r-- | sysdeps/m68k/bits/byteswap.h | 88 | ||||
| -rw-r--r-- | sysdeps/s390/bits/byteswap-16.h | 65 | ||||
| -rw-r--r-- | sysdeps/s390/bits/byteswap.h | 134 | ||||
| -rw-r--r-- | sysdeps/tile/bits/byteswap.h | 37 | ||||
| -rw-r--r-- | sysdeps/x86/bits/byteswap-16.h | 49 | ||||
| -rw-r--r-- | sysdeps/x86/bits/byteswap.h | 155 |
8 files changed, 0 insertions, 670 deletions
diff --git a/sysdeps/ia64/bits/byteswap-16.h b/sysdeps/ia64/bits/byteswap-16.h deleted file mode 100644 index 3c382c81af..0000000000 --- a/sysdeps/ia64/bits/byteswap-16.h +++ /dev/null @@ -1,42 +0,0 @@ -/* Macros to swap the order of bytes in 16-bit integer values. - Copyright (C) 1997-2018 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, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _BITS_BYTESWAP_H -# error "Never use <bits/byteswap-16.h> directly; include <byteswap.h> instead." -#endif - -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_16(x) \ - (__extension__ \ - ({ unsigned short int __v, __x = (unsigned short int) (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))); \ - __v; })) -#else -/* This is better than nothing. */ -static __inline unsigned short int -__bswap_16 (unsigned short int __bsx) -{ - return __bswap_constant_16 (__bsx); -} -#endif diff --git a/sysdeps/ia64/bits/byteswap.h b/sysdeps/ia64/bits/byteswap.h deleted file mode 100644 index 553c72fb92..0000000000 --- a/sysdeps/ia64/bits/byteswap.h +++ /dev/null @@ -1,100 +0,0 @@ -/* Macros to swap the order of bytes in integer values. - Copyright (C) 1997-2018 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, see - <http://www.gnu.org/licenses/>. */ - -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_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) \ - ((unsigned short int)((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))) - -/* Get __bswap_16. */ -#include <bits/byteswap-16.h> - -/* 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, __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))); \ - __v; })) -#else -static __inline unsigned int -__bswap_32 (unsigned int __bsx) -{ - return __bswap_constant_32 (__bsx); -} -#endif - - -/* Swap bytes in 64 bit value. */ -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_constant_64(x) \ - (__extension__ ((((x) & 0xff00000000000000ul) >> 56) \ - | (((x) & 0x00ff000000000000ul) >> 40) \ - | (((x) & 0x0000ff0000000000ul) >> 24) \ - | (((x) & 0x000000ff00000000ul) >> 8) \ - | (((x) & 0x00000000ff000000ul) << 8) \ - | (((x) & 0x0000000000ff0000ul) << 24) \ - | (((x) & 0x000000000000ff00ul) << 40) \ - | (((x) & 0x00000000000000fful) << 56))) - -# define __bswap_64(x) \ - (__extension__ \ - ({ 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))); \ - __v; })) - -#else -# 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)) - -static __inline unsigned long int -__bswap_64 (unsigned long int __bsx) -{ - return __bswap_constant_64 (__bsx); -} -#endif - -#endif /* _BITS_BYTESWAP_H */ diff --git a/sysdeps/m68k/bits/byteswap.h b/sysdeps/m68k/bits/byteswap.h deleted file mode 100644 index 3055230854..0000000000 --- a/sysdeps/m68k/bits/byteswap.h +++ /dev/null @@ -1,88 +0,0 @@ -/* Macros to swap the order of bytes in integer values. m68k version. - Copyright (C) 1997-2018 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, see - <http://www.gnu.org/licenses/>. */ - -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_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_constant_16(x) \ - ((((x) >> 8) & 0xffu) | (((x) & 0xffu) << 8)) - -static __always_inline unsigned short int -__bswap_16 (unsigned short int __bsx) -{ - return __bswap_constant_16 (__bsx); -} - -/* Swap bytes in 32 bit value. */ -#define __bswap_constant_32(x) \ - ((((x) & 0xff000000u) >> 24) | (((x) & 0x00ff0000u) >> 8) | \ - (((x) & 0x0000ff00u) << 8) | (((x) & 0x000000ffu) << 24)) - -#if !defined(__mcoldfire__) -static __always_inline unsigned int -__bswap_32 (unsigned int __bsx) -{ - if (__builtin_constant_p (__bsx)) - return __bswap_constant_32 (__bsx); - __asm__ __volatile__ ("ror%.w %#8, %0;" - "swap %0;" - "ror%.w %#8, %0" - : "+d" (__bsx)); - return __bsx; -} -#else -static __always_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) \ - __extension__ \ - ((((x) & 0xff00000000000000ull) >> 56) \ - | (((x) & 0x00ff000000000000ull) >> 40) \ - | (((x) & 0x0000ff0000000000ull) >> 24) \ - | (((x) & 0x000000ff00000000ull) >> 8) \ - | (((x) & 0x00000000ff000000ull) << 8) \ - | (((x) & 0x0000000000ff0000ull) << 24) \ - | (((x) & 0x000000000000ff00ull) << 40) \ - | (((x) & 0x00000000000000ffull) << 56)) - -/* Swap bytes in 64 bit value. */ -__extension__ -static __always_inline unsigned long long -__bswap_64 (unsigned long long __bsx) -{ - if (__builtin_constant_p (__bsx)) - return __bswap_constant_64 (__bsx); - return (__bswap_32 (__bsx >> 32) - | ((unsigned long long) __bswap_32 (__bsx) << 32)); -} -#endif - -#endif /* _BITS_BYTESWAP_H */ diff --git a/sysdeps/s390/bits/byteswap-16.h b/sysdeps/s390/bits/byteswap-16.h deleted file mode 100644 index d1e67d34a0..0000000000 --- a/sysdeps/s390/bits/byteswap-16.h +++ /dev/null @@ -1,65 +0,0 @@ -/* Macros to swap the order of bytes in 16-bit integer values. s390 version - Copyright (C) 2012-2018 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - 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, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _BITS_BYTESWAP_H -# error "Never use <bits/byteswap-16.h> directly; include <byteswap.h> instead." -#endif - -#include <bits/wordsize.h> - -/* Swap bytes in 16 bit value. */ -#if defined __GNUC__ && __GNUC__ >= 2 -# if __WORDSIZE == 64 -# define __bswap_16(x) \ - (__extension__ \ - ({ unsigned short int __v, __x = (unsigned short int) (x); \ - if (__builtin_constant_p (x)) \ - __v = __bswap_constant_16 (__x); \ - else { \ - unsigned short int __tmp = (unsigned short int) (__x); \ - __asm__ __volatile__ ( \ - "lrvh %0,%1" \ - : "=&d" (__v) : "m" (__tmp) ); \ - } \ - __v; })) -# else -# define __bswap_16(x) \ - (__extension__ \ - ({ unsigned short int __v, __x = (unsigned short int) (x); \ - if (__builtin_constant_p (x)) \ - __v = __bswap_constant_16 (__x); \ - else { \ - unsigned short int __tmp = (unsigned short int) (__x); \ - __asm__ __volatile__ ( \ - "sr %0,%0\n" \ - "la 1,%1\n" \ - "icm %0,2,1(1)\n" \ - "ic %0,0(1)" \ - : "=&d" (__v) : "m" (__tmp) : "1"); \ - } \ - __v; })) -# endif -#else -/* This is better than nothing. */ -static __inline unsigned short int -__bswap_16 (unsigned short int __bsx) -{ - return __bswap_constant_16 (__bsx); -} -#endif diff --git a/sysdeps/s390/bits/byteswap.h b/sysdeps/s390/bits/byteswap.h deleted file mode 100644 index 79a6e5f27e..0000000000 --- a/sysdeps/s390/bits/byteswap.h +++ /dev/null @@ -1,134 +0,0 @@ -/* Macros to swap the order of bytes in integer values. s390 version. - Copyright (C) 2000-2018 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - 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, see - <http://www.gnu.org/licenses/>. */ - -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -#include <bits/wordsize.h> - -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H 1 - -#define __bswap_constant_16(x) \ - ((unsigned short int) ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))) - -/* Get __bswap_16. */ -#include <bits/byteswap-16.h> - -/* 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 -# define __bswap_32(x) \ - (__extension__ \ - ({ unsigned int __v, __x = (x); \ - if (__builtin_constant_p (x)) \ - __v = __bswap_constant_32 (__x); \ - else { \ - unsigned int __tmp = (unsigned int) (__x); \ - __asm__ __volatile__ ( \ - "lrv %0,%1" \ - : "=&d" (__v) : "m" (__tmp)); \ - } \ - __v; })) -# else -# define __bswap_32(x) \ - (__extension__ \ - ({ unsigned int __v, __x = (x); \ - if (__builtin_constant_p (x)) \ - __v = __bswap_constant_32 (__x); \ - else { \ - unsigned int __tmp = (unsigned int) (__x); \ - __asm__ __volatile__ ( \ - "la 1,%1\n" \ - "icm %0,8,3(1)\n" \ - "icm %0,4,2(1)\n" \ - "icm %0,2,1(1)\n" \ - "ic %0,0(1)" \ - : "=&d" (__v) : "m" (__tmp) : "1"); \ - } \ - __v; })) -# endif -#else -static __inline unsigned int -__bswap_32 (unsigned int __bsx) -{ - return __bswap_constant_32 (__bsx); -} -#endif - -/* Swap bytes in 64 bit value. */ -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_constant_64(x) \ - (__extension__ ((((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 __WORDSIZE == 64 -# define __bswap_64(x) \ - (__extension__ \ - ({ unsigned long __w, __x = (x); \ - if (__builtin_constant_p (x)) \ - __w = __bswap_constant_64 (__x); \ - else { \ - unsigned long __tmp = (unsigned long) (__x); \ - __asm__ __volatile__ ( \ - "lrvg %0,%1" \ - : "=&d" (__w) : "m" (__tmp)); \ - } \ - __w; })) -# else -# define __bswap_64(x) \ - __extension__ \ - ({ union { unsigned long long int __ll; \ - unsigned long int __l[2]; } __w, __r; \ - __w.__ll = (x); \ - __r.__l[0] = __bswap_32 (__w.__l[1]); \ - __r.__l[1] = __bswap_32 (__w.__l[0]); \ - __r.__ll; }) -# endif -#else -# 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)) - -__extension__ -static __inline unsigned long long int -__bswap_64 (unsigned long long int __bsx) -{ - return __bswap_constant_64 (__bsx); -} -#endif - -#endif /* _BITS_BYTESWAP_H */ diff --git a/sysdeps/tile/bits/byteswap.h b/sysdeps/tile/bits/byteswap.h deleted file mode 100644 index ab360555af..0000000000 --- a/sysdeps/tile/bits/byteswap.h +++ /dev/null @@ -1,37 +0,0 @@ -/* Copyright (C) 2011-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. - - 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, see - <http://www.gnu.org/licenses/>. */ - -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H 1 - -#include <bits/types.h> - -/* gcc __builtin_bswap64() can constant-fold, etc, so always use it. */ -#define __bswap_16(x) ((unsigned short)(__builtin_bswap32(x) >> 16)) -#define __bswap_32(x) ((unsigned int)__builtin_bswap32(x)) -#define __bswap_64(x) ((__uint64_t)__builtin_bswap64(x)) - -#define __bswap_constant_16(x) __bswap_16(x) -#define __bswap_constant_32(x) __bswap_32(x) -#define __bswap_constant_64(x) __bswap_64(x) - -#endif /* _BITS_BYTESWAP_H */ diff --git a/sysdeps/x86/bits/byteswap-16.h b/sysdeps/x86/bits/byteswap-16.h deleted file mode 100644 index 34af790977..0000000000 --- a/sysdeps/x86/bits/byteswap-16.h +++ /dev/null @@ -1,49 +0,0 @@ -/* Macros to swap the order of bytes in 16-bit integer values. - Copyright (C) 2012-2018 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, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _BITS_BYTESWAP_H -# error "Never use <bits/byteswap-16.h> directly; include <byteswap.h> instead." -#endif - -#ifdef __GNUC__ -# if __GNUC__ >= 2 -# define __bswap_16(x) \ - (__extension__ \ - ({ unsigned short int __v, __x = (unsigned short int) (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_16 (__x); \ - else \ - __asm__ ("rorw $8, %w0" \ - : "=r" (__v) \ - : "0" (__x) \ - : "cc"); \ - __v; })) -# else -/* This is better than nothing. */ -# define __bswap_16(x) \ - (__extension__ \ - ({ unsigned short int __x = (unsigned short int) (x); \ - __bswap_constant_16 (__x); })) -# endif -#else -static __inline unsigned short int -__bswap_16 (unsigned short int __bsx) -{ - return __bswap_constant_16 (__bsx); -} -#endif diff --git a/sysdeps/x86/bits/byteswap.h b/sysdeps/x86/bits/byteswap.h deleted file mode 100644 index 23c8f42478..0000000000 --- a/sysdeps/x86/bits/byteswap.h +++ /dev/null @@ -1,155 +0,0 @@ -/* Macros to swap the order of bytes in integer values. - Copyright (C) 1997-2018 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, see - <http://www.gnu.org/licenses/>. */ - -#if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_H -# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." -#endif - -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H 1 - -#include <features.h> -#include <bits/types.h> -#include <bits/wordsize.h> - -/* Swap bytes in 16 bit value. */ -#define __bswap_constant_16(x) \ - ((unsigned short int) ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))) - -/* Get __bswap_16. */ -#include <bits/byteswap-16.h> - -/* 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_PREREQ (4, 3) -static __inline unsigned int -__bswap_32 (unsigned int __bsx) -{ - return __builtin_bswap32 (__bsx); -} -# elif __GNUC__ >= 2 -# if __WORDSIZE == 64 || (defined __i486__ || defined __pentium__ \ - || defined __pentiumpro__ || defined __pentium4__ \ - || defined __k8__ || defined __athlon__ \ - || defined __k6__ || defined __nocona__ \ - || defined __core2__ || defined __geode__ \ - || defined __amdfam10__) -/* 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) \ - (__extension__ \ - ({ unsigned int __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_32 (__x); \ - else \ - __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); \ - __v; })) -# else -# define __bswap_32(x) \ - (__extension__ \ - ({ 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) \ - (__extension__ \ - ({ 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 __GNUC_PREREQ (2, 0) -/* Swap bytes in 64 bit value. */ -# define __bswap_constant_64(x) \ - (__extension__ ((((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 __GNUC_PREREQ (4, 3) -static __inline __uint64_t -__bswap_64 (__uint64_t __bsx) -{ - return __builtin_bswap64 (__bsx); -} -# elif __WORDSIZE == 64 -# define __bswap_64(x) \ - (__extension__ \ - ({ __uint64_t __v, __x = (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_64 (__x); \ - else \ - __asm__ ("bswap %q0" : "=r" (__v) : "0" (__x)); \ - __v; })) -# else -# define __bswap_64(x) \ - (__extension__ \ - ({ union { __extension__ __uint64_t __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 -#else -# 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)) - -static __inline __uint64_t -__bswap_64 (__uint64_t __bsx) -{ - return __bswap_constant_64 (__bsx); -} -#endif - -#endif /* _BITS_BYTESWAP_H */ |