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__)
  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#endif
  54
  55#include <time.h>
  56
  57typedef uint8_t __u8;
  58typedef uint16_t __u16;
  59typedef uint32_t __u32;
  60typedef unsigned int uint;
  61
  62#define uswap_16(x) \
  63        ((((x) & 0xff00) >> 8) | \
  64         (((x) & 0x00ff) << 8))
  65#define uswap_32(x) \
  66        ((((x) & 0xff000000) >> 24) | \
  67         (((x) & 0x00ff0000) >>  8) | \
  68         (((x) & 0x0000ff00) <<  8) | \
  69         (((x) & 0x000000ff) << 24))
  70#define _uswap_64(x, sfx) \
  71        ((((x) & 0xff00000000000000##sfx) >> 56) | \
  72         (((x) & 0x00ff000000000000##sfx) >> 40) | \
  73         (((x) & 0x0000ff0000000000##sfx) >> 24) | \
  74         (((x) & 0x000000ff00000000##sfx) >>  8) | \
  75         (((x) & 0x00000000ff000000##sfx) <<  8) | \
  76         (((x) & 0x0000000000ff0000##sfx) << 24) | \
  77         (((x) & 0x000000000000ff00##sfx) << 40) | \
  78         (((x) & 0x00000000000000ff##sfx) << 56))
  79#if defined(__GNUC__)
  80# define uswap_64(x) _uswap_64(x, ull)
  81#else
  82# define uswap_64(x) _uswap_64(x, )
  83#endif
  84
  85#if __BYTE_ORDER == __LITTLE_ENDIAN
  86# define cpu_to_le16(x)         (x)
  87# define cpu_to_le32(x)         (x)
  88# define cpu_to_le64(x)         (x)
  89# define le16_to_cpu(x)         (x)
  90# define le32_to_cpu(x)         (x)
  91# define le64_to_cpu(x)         (x)
  92# define cpu_to_be16(x)         uswap_16(x)
  93# define cpu_to_be32(x)         uswap_32(x)
  94# define cpu_to_be64(x)         uswap_64(x)
  95# define be16_to_cpu(x)         uswap_16(x)
  96# define be32_to_cpu(x)         uswap_32(x)
  97# define be64_to_cpu(x)         uswap_64(x)
  98#else
  99# define cpu_to_le16(x)         uswap_16(x)
 100# define cpu_to_le32(x)         uswap_32(x)
 101# define cpu_to_le64(x)         uswap_64(x)
 102# define le16_to_cpu(x)         uswap_16(x)
 103# define le32_to_cpu(x)         uswap_32(x)
 104# define le64_to_cpu(x)         uswap_64(x)
 105# define cpu_to_be16(x)         (x)
 106# define cpu_to_be32(x)         (x)
 107# define cpu_to_be64(x)         (x)
 108# define be16_to_cpu(x)         (x)
 109# define be32_to_cpu(x)         (x)
 110# define be64_to_cpu(x)         (x)
 111#endif
 112
 113#else /* !USE_HOSTCC */
 114
 115#ifdef CONFIG_USE_STDINT
 116/* Provided by gcc. */
 117#include <stdint.h>
 118#else
 119/* Type for `void *' pointers. */
 120typedef unsigned long int uintptr_t;
 121#endif
 122
 123#include <linux/string.h>
 124#include <linux/types.h>
 125#include <asm/byteorder.h>
 126
 127#if __SIZEOF_LONG__ == 8
 128# define __WORDSIZE     64
 129#elif __SIZEOF_LONG__ == 4
 130# define __WORDSIZE     32
 131#else
 132/*
 133 * Assume 32-bit for now - only newer toolchains support this feature and
 134 * this is only required for sandbox support at present.
 135 */
 136#define __WORDSIZE      32
 137#endif
 138
 139#endif /* USE_HOSTCC */
 140
 141#define likely(x)       __builtin_expect(!!(x), 1)
 142#define unlikely(x)     __builtin_expect(!!(x), 0)
 143
 144#endif
 145