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include/compiler.h
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d41ce506b Initial Release, ... |
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/* * Keep all the ugly #ifdef for system stuff here */ #ifndef __COMPILER_H__ #define __COMPILER_H__ #include <stddef.h> #ifdef USE_HOSTCC #if defined(__BEOS__) || \ defined(__NetBSD__) || \ defined(__FreeBSD__) || \ defined(__sun__) || \ defined(__APPLE__) # include <inttypes.h> #elif defined(__linux__) || defined(__WIN32__) || defined(__MINGW32__) || defined(__OpenBSD__) # include <stdint.h> #endif #include <errno.h> #include <stdlib.h> #include <stdint.h> #include <stdio.h> #include <string.h> #if !defined(__WIN32__) && !defined(__MINGW32__) # include <sys/mman.h> #endif /* Not all systems (like Windows) has this define, and yes * we do replace/emulate mmap() on those systems ... */ #ifndef MAP_FAILED # define MAP_FAILED ((void *)-1) #endif #include <fcntl.h> #ifndef O_BINARY /* should be define'd on __WIN32__ */ #define O_BINARY 0 #endif #ifdef __linux__ # include <endian.h> # include <byteswap.h> #elif defined(__MACH__) || defined(__FreeBSD__) # include <machine/endian.h> typedef unsigned long ulong; #endif #ifdef __FreeBSD__ # include <sys/endian.h> /* htole32 and friends */ # define __BYTE_ORDER BYTE_ORDER # define __LITTLE_ENDIAN LITTLE_ENDIAN # define __BIG_ENDIAN BIG_ENDIAN #elif defined(__OpenBSD__) # include <endian.h> # define __BYTE_ORDER BYTE_ORDER # define __LITTLE_ENDIAN LITTLE_ENDIAN # define __BIG_ENDIAN BIG_ENDIAN #endif #include <time.h> typedef uint8_t __u8; typedef uint16_t __u16; typedef uint32_t __u32; typedef unsigned int uint; #define uswap_16(x) \ ((((x) & 0xff00) >> 8) | \ (((x) & 0x00ff) << 8)) #define uswap_32(x) \ ((((x) & 0xff000000) >> 24) | \ (((x) & 0x00ff0000) >> 8) | \ (((x) & 0x0000ff00) << 8) | \ (((x) & 0x000000ff) << 24)) #define _uswap_64(x, sfx) \ ((((x) & 0xff00000000000000##sfx) >> 56) | \ (((x) & 0x00ff000000000000##sfx) >> 40) | \ (((x) & 0x0000ff0000000000##sfx) >> 24) | \ (((x) & 0x000000ff00000000##sfx) >> 8) | \ (((x) & 0x00000000ff000000##sfx) << 8) | \ (((x) & 0x0000000000ff0000##sfx) << 24) | \ (((x) & 0x000000000000ff00##sfx) << 40) | \ (((x) & 0x00000000000000ff##sfx) << 56)) #if defined(__GNUC__) # define uswap_64(x) _uswap_64(x, ull) #else # define uswap_64(x) _uswap_64(x, ) #endif #if __BYTE_ORDER == __LITTLE_ENDIAN # define cpu_to_le16(x) (x) # define cpu_to_le32(x) (x) # define cpu_to_le64(x) (x) # define le16_to_cpu(x) (x) # define le32_to_cpu(x) (x) # define le64_to_cpu(x) (x) # define cpu_to_be16(x) uswap_16(x) # define cpu_to_be32(x) uswap_32(x) # define cpu_to_be64(x) uswap_64(x) # define be16_to_cpu(x) uswap_16(x) # define be32_to_cpu(x) uswap_32(x) # define be64_to_cpu(x) uswap_64(x) #else # define cpu_to_le16(x) uswap_16(x) # define cpu_to_le32(x) uswap_32(x) # define cpu_to_le64(x) uswap_64(x) # define le16_to_cpu(x) uswap_16(x) # define le32_to_cpu(x) uswap_32(x) # define le64_to_cpu(x) uswap_64(x) # define cpu_to_be16(x) (x) # define cpu_to_be32(x) (x) # define cpu_to_be64(x) (x) # define be16_to_cpu(x) (x) # define be32_to_cpu(x) (x) # define be64_to_cpu(x) (x) #endif #else /* !USE_HOSTCC */ #ifdef CONFIG_USE_STDINT /* Provided by gcc. */ #include <stdint.h> #else /* Type for `void *' pointers. */ typedef unsigned long int uintptr_t; #endif #include <linux/string.h> #include <linux/types.h> #include <asm/byteorder.h> #if __SIZEOF_LONG__ == 8 # define __WORDSIZE 64 #elif __SIZEOF_LONG__ == 4 # define __WORDSIZE 32 #else /* * Assume 32-bit for now - only newer toolchains support this feature and * this is only required for sandbox support at present. */ #define __WORDSIZE 32 #endif #endif /* USE_HOSTCC */ #define likely(x) __builtin_expect(!!(x), 1) #define unlikely(x) __builtin_expect(!!(x), 0) #endif |