1 /* Copyright (c) 2004 Jeff Johnston <jjohnstn@redhat.com> */ 2 #ifndef __MACHINE_ENDIAN_H__ 3 #define __MACHINE_ENDIAN_H__ 4 5 #include <sys/cdefs.h> 6 #include <sys/_types.h> 7 #include <machine/_endian.h> 8 9 #if _BYTE_ORDER == _LITTLE_ENDIAN 10 #define _QUAD_HIGHWORD 1 11 #define _QUAD_LOWWORD 0 12 #else 13 #define _QUAD_HIGHWORD 0 14 #define _QUAD_LOWWORD 1 15 #endif 16 17 #if __BSD_VISIBLE 18 #define LITTLE_ENDIAN _LITTLE_ENDIAN 19 #define BIG_ENDIAN _BIG_ENDIAN 20 #define PDP_ENDIAN _PDP_ENDIAN 21 #define BYTE_ORDER _BYTE_ORDER 22 #endif 23 24 #ifdef __GNUC__ 25 #define __bswap16(_x) __builtin_bswap16(_x) 26 #define __bswap32(_x) __builtin_bswap32(_x) 27 #define __bswap64(_x) __builtin_bswap64(_x) 28 #else /* __GNUC__ */ 29 static __inline __uint16_t __bswap16(__uint16_t _x)30__bswap16(__uint16_t _x) 31 { 32 33 return ((__uint16_t)((_x >> 8) | ((_x << 8) & 0xff00))); 34 } 35 36 static __inline __uint32_t __bswap32(__uint32_t _x)37__bswap32(__uint32_t _x) 38 { 39 40 return ((__uint32_t)((_x >> 24) | ((_x >> 8) & 0xff00) | 41 ((_x << 8) & 0xff0000) | ((_x << 24) & 0xff000000))); 42 } 43 44 static __inline __uint64_t __bswap64(__uint64_t _x)45__bswap64(__uint64_t _x) 46 { 47 48 return ((__uint64_t)((_x >> 56) | ((_x >> 40) & 0xff00) | 49 ((_x >> 24) & 0xff0000) | ((_x >> 8) & 0xff000000) | 50 ((_x << 8) & ((__uint64_t)0xff << 32)) | 51 ((_x << 24) & ((__uint64_t)0xff << 40)) | 52 ((_x << 40) & ((__uint64_t)0xff << 48)) | ((_x << 56)))); 53 } 54 #endif /* !__GNUC__ */ 55 56 /* endian(3) - similar to linux <endian.h> */ 57 #if _BYTE_ORDER == _LITTLE_ENDIAN 58 #define htobe16(_x) __bswap16(_x) 59 #define htole16(_x) ((__uint16_t)(_x)) 60 #define be16toh(_x) __bswap16(_x) 61 #define le16toh(_x) ((__uint16_t)(_x)) 62 #define htobe32(_x) __bswap32(_x) 63 #define htole32(_x) ((__uint32_t)(_x)) 64 #define be32toh(_x) __bswap32(_x) 65 #define le32toh(_x) ((__uint32_t)(_x)) 66 #define htobe64(_x) __bswap64(_x) 67 #define htole64(_x) ((__uint64_t)(_x)) 68 #define be64toh(_x) __bswap64(_x) 69 #define le64toh(_x) ((__uint64_t)(_x)) 70 #else 71 #define htobe16(_x) ((__uint16_t)(_x)) 72 #define htole16(_x) __bswap16(_x) 73 #define be16toh(_x) ((__uint16_t)(_x)) 74 #define le16toh(_x) __bswap16(_x) 75 #define htobe32(_x) ((__uint32_t)(_x)) 76 #define htole32(_x) __bswap32(_x) 77 #define be32toh(_x) ((__uint32_t)(_x)) 78 #define le32toh(_x) __bswap32(_x) 79 #define htobe64(_x) ((__uint64_t)(_x)) 80 #define htole64(_x) __bswap64(_x) 81 #define be64toh(_x) ((__uint64_t)(_x)) 82 #define le64toh(_x) __bswap64(_x) 83 #endif 84 85 #endif /* __MACHINE_ENDIAN_H__ */ 86
