LXR uboot/include/compiler.h

   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>
  49typedef unsigned long ulong;
  50#endif
  51#ifdef __FreeBSD__
  52# include <sys/endian.h> /* htole32 and friends */
  53#elif defined(__OpenBSD__)
  54# include <endian.h>
  55# define __BYTE_ORDER BYTE_ORDER
  56# define __LITTLE_ENDIAN LITTLE_ENDIAN
  57# define __BIG_ENDIAN BIG_ENDIAN
  58#endif
  59
  60#include <time.h>
  61
  62typedef uint8_t __u8;
  63typedef uint16_t __u16;
  64typedef uint32_t __u32;
  65typedef unsigned int uint;
  66
  67#define uswap_16(x) \
  68        ((((x) & 0xff00) >> 8) | \
  69         (((x) & 0x00ff) << 8))
  70#define uswap_32(x) \
  71        ((((x) & 0xff000000) >> 24) | \
  72         (((x) & 0x00ff0000) >>  8) | \
  73         (((x) & 0x0000ff00) <<  8) | \
  74         (((x) & 0x000000ff) << 24))
  75#define _uswap_64(x, sfx) \
  76        ((((x) & 0xff00000000000000##sfx) >> 56) | \
  77         (((x) & 0x00ff000000000000##sfx) >> 40) | \
  78         (((x) & 0x0000ff0000000000##sfx) >> 24) | \
  79         (((x) & 0x000000ff00000000##sfx) >>  8) | \
  80         (((x) & 0x00000000ff000000##sfx) <<  8) | \
  81         (((x) & 0x0000000000ff0000##sfx) << 24) | \
  82         (((x) & 0x000000000000ff00##sfx) << 40) | \
  83         (((x) & 0x00000000000000ff##sfx) << 56))
  84#if defined(__GNUC__)
  85# define uswap_64(x) _uswap_64(x, ull)
  86#else
  87# define uswap_64(x) _uswap_64(x, )
  88#endif
  89
  90#if __BYTE_ORDER == __LITTLE_ENDIAN
  91# define cpu_to_le16(x)         (x)
  92# define cpu_to_le32(x)         (x)
  93# define cpu_to_le64(x)         (x)
  94# define le16_to_cpu(x)         (x)
  95# define le32_to_cpu(x)         (x)
  96# define le64_to_cpu(x)         (x)
  97# define cpu_to_be16(x)         uswap_16(x)
  98# define cpu_to_be32(x)         uswap_32(x)
  99# define cpu_to_be64(x)         uswap_64(x)
 100# define be16_to_cpu(x)         uswap_16(x)
 101# define be32_to_cpu(x)         uswap_32(x)
 102# define be64_to_cpu(x)         uswap_64(x)
 103#else
 104# define cpu_to_le16(x)         uswap_16(x)
 105# define cpu_to_le32(x)         uswap_32(x)
 106# define cpu_to_le64(x)         uswap_64(x)
 107# define le16_to_cpu(x)         uswap_16(x)
 108# define le32_to_cpu(x)         uswap_32(x)
 109# define le64_to_cpu(x)         uswap_64(x)
 110# define cpu_to_be16(x)         (x)
 111# define cpu_to_be32(x)         (x)
 112# define cpu_to_be64(x)         (x)
 113# define be16_to_cpu(x)         (x)
 114# define be32_to_cpu(x)         (x)
 115# define be64_to_cpu(x)         (x)
 116#endif
 117
 118#else /* !USE_HOSTCC */
 119
 120#ifdef CONFIG_USE_STDINT
 121/* Provided by gcc. */
 122#include <stdint.h>
 123#else
 124/* Type for `void *' pointers. */
 125typedef unsigned long int uintptr_t;
 126#endif
 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#endif
 150