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 #include <stdbool.h> 10 11 #ifdef USE_HOSTCC 12 13 #if defined(__BEOS__) || \ 14 defined(__NetBSD__) || \ 15 defined(__FreeBSD__) || \ 16 defined(__sun__) || \ 17 defined(__APPLE__) 18 # include <inttypes.h> 19 #elif defined(__linux__) || defined(__WIN32__) || defined(__MINGW32__) || defined(__OpenBSD__) 20 # include <stdint.h> 21 #endif 22 23 #include <errno.h> 24 #include <stdlib.h> 25 #include <stdint.h> 26 #include <stdio.h> 27 #include <string.h> 28 29 #if !defined(__WIN32__) && !defined(__MINGW32__) 30 # include <sys/mman.h> 31 #endif 32 33 /* Not all systems (like Windows) has this define, and yes 34 * we do replace/emulate mmap() on those systems ... 35 */ 36 #ifndef MAP_FAILED 37 # define MAP_FAILED ((void *)-1) 38 #endif 39 40 #include <fcntl.h> 41 #ifndef O_BINARY /* should be define'd on __WIN32__ */ 42 #define O_BINARY 0 43 #endif 44 45 #ifdef __linux__ 46 # include <endian.h> 47 # include <byteswap.h> 48 #elif defined(__MACH__) || defined(__FreeBSD__) 49 # include <machine/endian.h> 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 typedef uint8_t __u8; 64 typedef uint16_t __u16; 65 typedef uint32_t __u32; 66 typedef unsigned int uint; 67 typedef unsigned long ulong; 68 69 /* Define these on the host so we can build some target code */ 70 typedef __u32 u32; 71 72 #define uswap_16(x) \ 73 ((((x) & 0xff00) >> 8) | \ 74 (((x) & 0x00ff) << 8)) 75 #define uswap_32(x) \ 76 ((((x) & 0xff000000) >> 24) | \ 77 (((x) & 0x00ff0000) >> 8) | \ 78 (((x) & 0x0000ff00) << 8) | \ 79 (((x) & 0x000000ff) << 24)) 80 #define _uswap_64(x, sfx) \ 81 ((((x) & 0xff00000000000000##sfx) >> 56) | \ 82 (((x) & 0x00ff000000000000##sfx) >> 40) | \ 83 (((x) & 0x0000ff0000000000##sfx) >> 24) | \ 84 (((x) & 0x000000ff00000000##sfx) >> 8) | \ 85 (((x) & 0x00000000ff000000##sfx) << 8) | \ 86 (((x) & 0x0000000000ff0000##sfx) << 24) | \ 87 (((x) & 0x000000000000ff00##sfx) << 40) | \ 88 (((x) & 0x00000000000000ff##sfx) << 56)) 89 #if defined(__GNUC__) 90 # define uswap_64(x) _uswap_64(x, ull) 91 #else 92 # define uswap_64(x) _uswap_64(x, ) 93 #endif 94 95 #if __BYTE_ORDER == __LITTLE_ENDIAN 96 # define cpu_to_le16(x) (x) 97 # define cpu_to_le32(x) (x) 98 # define cpu_to_le64(x) (x) 99 # define le16_to_cpu(x) (x) 100 # define le32_to_cpu(x) (x) 101 # define le64_to_cpu(x) (x) 102 # define cpu_to_be16(x) uswap_16(x) 103 # define cpu_to_be32(x) uswap_32(x) 104 # define cpu_to_be64(x) uswap_64(x) 105 # define be16_to_cpu(x) uswap_16(x) 106 # define be32_to_cpu(x) uswap_32(x) 107 # define be64_to_cpu(x) uswap_64(x) 108 #else 109 # define cpu_to_le16(x) uswap_16(x) 110 # define cpu_to_le32(x) uswap_32(x) 111 # define cpu_to_le64(x) uswap_64(x) 112 # define le16_to_cpu(x) uswap_16(x) 113 # define le32_to_cpu(x) uswap_32(x) 114 # define le64_to_cpu(x) uswap_64(x) 115 # define cpu_to_be16(x) (x) 116 # define cpu_to_be32(x) (x) 117 # define cpu_to_be64(x) (x) 118 # define be16_to_cpu(x) (x) 119 # define be32_to_cpu(x) (x) 120 # define be64_to_cpu(x) (x) 121 #endif 122 123 #else /* !USE_HOSTCC */ 124 125 /* Type for `void *' pointers. */ 126 typedef unsigned long int uintptr_t; 127 128 #include <linux/string.h> 129 #include <linux/types.h> 130 #include <asm/byteorder.h> 131 132 #if __SIZEOF_LONG__ == 8 133 # define __WORDSIZE 64 134 #elif __SIZEOF_LONG__ == 4 135 # define __WORDSIZE 32 136 #else 137 /* 138 * Assume 32-bit for now - only newer toolchains support this feature and 139 * this is only required for sandbox support at present. 140 */ 141 #define __WORDSIZE 32 142 #endif 143 144 #endif /* USE_HOSTCC */ 145 146 #define likely(x) __builtin_expect(!!(x), 1) 147 #define unlikely(x) __builtin_expect(!!(x), 0) 148 149 #ifdef __LP64__ 150 #define MEM_SUPPORT_64BIT_DATA 1 151 #else 152 #define MEM_SUPPORT_64BIT_DATA 0 153 #endif 154 155 /** 156 * tools_build() - check if we are building host tools 157 * 158 * Return: true if building for the host, false if for a target 159 */ tools_build(void)160static inline bool tools_build(void) 161 { 162 #ifdef USE_HOSTCC 163 return true; 164 #else 165 return false; 166 #endif 167 } 168 169 #endif 170