1 /************************************************************************** 2 * 3 * Copyright 2007-2008 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 #ifndef U_ENDIAN_H 28 #define U_ENDIAN_H 29 30 #ifdef HAVE_ENDIAN_H 31 #include <endian.h> 32 33 /* glibc */ 34 #if defined(__BYTE_ORDER) && (__BYTE_ORDER == __LITTLE_ENDIAN) 35 # define UTIL_ARCH_LITTLE_ENDIAN 1 36 # define UTIL_ARCH_BIG_ENDIAN 0 37 #elif defined(__BYTE_ORDER) && (__BYTE_ORDER == __BIG_ENDIAN) 38 # define UTIL_ARCH_LITTLE_ENDIAN 0 39 # define UTIL_ARCH_BIG_ENDIAN 1 40 #endif 41 42 #if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN) 43 # define UTIL_ARCH_LITTLE_ENDIAN 1 44 # define UTIL_ARCH_BIG_ENDIAN 0 45 #elif defined(BYTE_ORDER) && (BYTE_ORDER == BIG_ENDIAN) 46 # define UTIL_ARCH_LITTLE_ENDIAN 0 47 # define UTIL_ARCH_BIG_ENDIAN 1 48 #endif 49 50 #elif defined(__APPLE__) 51 #include <machine/endian.h> 52 53 #if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN 54 # define UTIL_ARCH_LITTLE_ENDIAN 1 55 # define UTIL_ARCH_BIG_ENDIAN 0 56 #elif __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN 57 # define UTIL_ARCH_LITTLE_ENDIAN 0 58 # define UTIL_ARCH_BIG_ENDIAN 1 59 #endif 60 61 #elif defined(__sun) 62 #include <sys/isa_defs.h> 63 64 #if defined(_LITTLE_ENDIAN) 65 # define UTIL_ARCH_LITTLE_ENDIAN 1 66 # define UTIL_ARCH_BIG_ENDIAN 0 67 #elif defined(_BIG_ENDIAN) 68 # define UTIL_ARCH_LITTLE_ENDIAN 0 69 # define UTIL_ARCH_BIG_ENDIAN 1 70 #endif 71 72 #elif defined(__NetBSD__) || defined(__FreeBSD__) || \ 73 defined(__DragonFly__) 74 #include <sys/types.h> 75 #include <machine/endian.h> 76 77 #if _BYTE_ORDER == _LITTLE_ENDIAN 78 # define UTIL_ARCH_LITTLE_ENDIAN 1 79 # define UTIL_ARCH_BIG_ENDIAN 0 80 #elif _BYTE_ORDER == _BIG_ENDIAN 81 # define UTIL_ARCH_LITTLE_ENDIAN 0 82 # define UTIL_ARCH_BIG_ENDIAN 1 83 #endif 84 85 #elif defined(_WIN32) || defined(ANDROID) 86 87 #define UTIL_ARCH_LITTLE_ENDIAN 1 88 #define UTIL_ARCH_BIG_ENDIAN 0 89 90 #endif 91 92 #if !defined(UTIL_ARCH_LITTLE_ENDIAN) || !defined(UTIL_ARCH_BIG_ENDIAN) 93 # error "UTIL_ARCH_LITTLE_ENDIAN and/or UTIL_ARCH_BIG_ENDIAN were unset." 94 #elif UTIL_ARCH_LITTLE_ENDIAN == UTIL_ARCH_BIG_ENDIAN 95 # error "UTIL_ARCH_LITTLE_ENDIAN and UTIL_ARCH_BIG_ENDIAN must not both be 1 or 0." 96 #endif 97 98 #endif 99