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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 */
- #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
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