1 /* 2 * Keep all the ugly #ifdef for system stuff here 3 */ 4 5 #ifndef __COMPILER_H__ 6 #define __COMPILER_H__ 7 8 #include <stddef.h> 9 10 #ifdef USE_HOSTCC 11 12 #if defined(__BEOS__) || \ 13 defined(__NetBSD__) || \ 14 defined(__FreeBSD__) || \ 15 defined(__sun__) || \ 16 defined(__APPLE__) 17 # include <inttypes.h> 18 #elif defined(__linux__) || defined(__WIN32__) || defined(__MINGW32__) || defined(__OpenBSD__) 19 # include <stdint.h> 20 #endif 21 22 #include <errno.h> 23 #include <stdlib.h> 24 #include <stdint.h> 25 #include <stdio.h> 26 #include <string.h> 27 28 #if !defined(__WIN32__) && !defined(__MINGW32__) 29 # include <sys/mman.h> 30 #endif 31 32 /* Not all systems (like Windows) has this define, and yes 33 * we do replace/emulate mmap() on those systems ... 34 */ 35 #ifndef MAP_FAILED 36 # define MAP_FAILED ((void *)-1) 37 #endif 38 39 #include <fcntl.h> 40 #ifndef O_BINARY /* should be define'd on __WIN32__ */ 41 #define O_BINARY 0 42 #endif 43 44 #ifdef __linux__ 45 # include <endian.h> 46 # include <byteswap.h> 47 #elif defined(__MACH__) || defined(__FreeBSD__) 48 # include <machine/endian.h> 49 typedef unsigned long ulong; 50 #endif 51 #ifdef __FreeBSD__ 52 # include <sys/endian.h> /* htole32 and friends */ 53 # define __BYTE_ORDER BYTE_ORDER 54 # define __LITTLE_ENDIAN LITTLE_ENDIAN 55 # define __BIG_ENDIAN BIG_ENDIAN 56 #elif defined(__OpenBSD__) 57 # include <endian.h> 58 # define __BYTE_ORDER BYTE_ORDER 59 # define __LITTLE_ENDIAN LITTLE_ENDIAN 60 # define __BIG_ENDIAN BIG_ENDIAN 61 #endif 62 63 #include <time.h> 64 65 typedef uint8_t __u8; 66 typedef uint16_t __u16; 67 typedef uint32_t __u32; 68 typedef unsigned int uint; 69 70 #define uswap_16(x) \ 71 ((((x) & 0xff00) >> 8) | \ 72 (((x) & 0x00ff) << 8)) 73 #define uswap_32(x) \ 74 ((((x) & 0xff000000) >> 24) | \ 75 (((x) & 0x00ff0000) >> 8) | \ 76 (((x) & 0x0000ff00) << 8) | \ 77 (((x) & 0x000000ff) << 24)) 78 #define _uswap_64(x, sfx) \ 79 ((((x) & 0xff00000000000000##sfx) >> 56) | \ 80 (((x) & 0x00ff000000000000##sfx) >> 40) | \ 81 (((x) & 0x0000ff0000000000##sfx) >> 24) | \ 82 (((x) & 0x000000ff00000000##sfx) >> 8) | \ 83 (((x) & 0x00000000ff000000##sfx) << 8) | \ 84 (((x) & 0x0000000000ff0000##sfx) << 24) | \ 85 (((x) & 0x000000000000ff00##sfx) << 40) | \ 86 (((x) & 0x00000000000000ff##sfx) << 56)) 87 #if defined(__GNUC__) 88 # define uswap_64(x) _uswap_64(x, ull) 89 #else 90 # define uswap_64(x) _uswap_64(x, ) 91 #endif 92 93 #if __BYTE_ORDER == __LITTLE_ENDIAN 94 # define cpu_to_le16(x) (x) 95 # define cpu_to_le32(x) (x) 96 # define cpu_to_le64(x) (x) 97 # define le16_to_cpu(x) (x) 98 # define le32_to_cpu(x) (x) 99 # define le64_to_cpu(x) (x) 100 # define cpu_to_be16(x) uswap_16(x) 101 # define cpu_to_be32(x) uswap_32(x) 102 # define cpu_to_be64(x) uswap_64(x) 103 # define be16_to_cpu(x) uswap_16(x) 104 # define be32_to_cpu(x) uswap_32(x) 105 # define be64_to_cpu(x) uswap_64(x) 106 #else 107 # define cpu_to_le16(x) uswap_16(x) 108 # define cpu_to_le32(x) uswap_32(x) 109 # define cpu_to_le64(x) uswap_64(x) 110 # define le16_to_cpu(x) uswap_16(x) 111 # define le32_to_cpu(x) uswap_32(x) 112 # define le64_to_cpu(x) uswap_64(x) 113 # define cpu_to_be16(x) (x) 114 # define cpu_to_be32(x) (x) 115 # define cpu_to_be64(x) (x) 116 # define be16_to_cpu(x) (x) 117 # define be32_to_cpu(x) (x) 118 # define be64_to_cpu(x) (x) 119 #endif 120 121 #else /* !USE_HOSTCC */ 122 123 #ifdef CONFIG_USE_STDINT 124 /* Provided by gcc. */ 125 #include <stdint.h> 126 #else 127 /* Type for `void *' pointers. */ 128 typedef unsigned long int uintptr_t; 129 #endif 130 131 #include <linux/string.h> 132 #include <linux/types.h> 133 #include <asm/byteorder.h> 134 135 #if __SIZEOF_LONG__ == 8 136 # define __WORDSIZE 64 137 #elif __SIZEOF_LONG__ == 4 138 # define __WORDSIZE 32 139 #else 140 /* 141 * Assume 32-bit for now - only newer toolchains support this feature and 142 * this is only required for sandbox support at present. 143 */ 144 #define __WORDSIZE 32 145 #endif 146 147 #endif /* USE_HOSTCC */ 148 149 #define likely(x) __builtin_expect(!!(x), 1) 150 #define unlikely(x) __builtin_expect(!!(x), 0) 151 152 #endif 153