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#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#include <time.h>
  64
  65typedef uint8_t __u8;
  66typedef uint16_t __u16;
  67typedef uint32_t __u32;
  68typedef unsigned int uint;
  69typedef unsigned long ulong;
  70
  71/* Define these on the host so we can build some target code */
  72typedef __u32 u32;
  73
  74#define uswap_16(x) \
  75        ((((x) & 0xff00) >> 8) | \
  76         (((x) & 0x00ff) << 8))
  77#define uswap_32(x) \
  78        ((((x) & 0xff000000) >> 24) | \
  79         (((x) & 0x00ff0000) >>  8) | \
  80         (((x) & 0x0000ff00) <<  8) | \
  81         (((x) & 0x000000ff) << 24))
  82#define _uswap_64(x, sfx) \
  83        ((((x) & 0xff00000000000000##sfx) >> 56) | \
  84         (((x) & 0x00ff000000000000##sfx) >> 40) | \
  85         (((x) & 0x0000ff0000000000##sfx) >> 24) | \
  86         (((x) & 0x000000ff00000000##sfx) >>  8) | \
  87         (((x) & 0x00000000ff000000##sfx) <<  8) | \
  88         (((x) & 0x0000000000ff0000##sfx) << 24) | \
  89         (((x) & 0x000000000000ff00##sfx) << 40) | \
  90         (((x) & 0x00000000000000ff##sfx) << 56))
  91#if defined(__GNUC__)
  92# define uswap_64(x) _uswap_64(x, ull)
  93#else
  94# define uswap_64(x) _uswap_64(x, )
  95#endif
  96
  97#if __BYTE_ORDER == __LITTLE_ENDIAN
  98# define cpu_to_le16(x)         (x)
  99# define cpu_to_le32(x)         (x)
 100# define cpu_to_le64(x)         (x)
 101# define le16_to_cpu(x)         (x)
 102# define le32_to_cpu(x)         (x)
 103# define le64_to_cpu(x)         (x)
 104# define cpu_to_be16(x)         uswap_16(x)
 105# define cpu_to_be32(x)         uswap_32(x)
 106# define cpu_to_be64(x)         uswap_64(x)
 107# define be16_to_cpu(x)         uswap_16(x)
 108# define be32_to_cpu(x)         uswap_32(x)
 109# define be64_to_cpu(x)         uswap_64(x)
 110#else
 111# define cpu_to_le16(x)         uswap_16(x)
 112# define cpu_to_le32(x)         uswap_32(x)
 113# define cpu_to_le64(x)         uswap_64(x)
 114# define le16_to_cpu(x)         uswap_16(x)
 115# define le32_to_cpu(x)         uswap_32(x)
 116# define le64_to_cpu(x)         uswap_64(x)
 117# define cpu_to_be16(x)         (x)
 118# define cpu_to_be32(x)         (x)
 119# define cpu_to_be64(x)         (x)
 120# define be16_to_cpu(x)         (x)
 121# define be32_to_cpu(x)         (x)
 122# define be64_to_cpu(x)         (x)
 123#endif
 124
 125#else /* !USE_HOSTCC */
 126
 127/* Type for `void *' pointers. */
 128typedef unsigned long int uintptr_t;
 129
 130#include <linux/string.h>
 131#include <linux/types.h>
 132#include <asm/byteorder.h>
 133
 134#if __SIZEOF_LONG__ == 8
 135# define __WORDSIZE     64
 136#elif __SIZEOF_LONG__ == 4
 137# define __WORDSIZE     32
 138#else
 139/*
 140 * Assume 32-bit for now - only newer toolchains support this feature and
 141 * this is only required for sandbox support at present.
 142 */
 143#define __WORDSIZE      32
 144#endif
 145
 146#endif /* USE_HOSTCC */
 147
 148#define likely(x)       __builtin_expect(!!(x), 1)
 149#define unlikely(x)     __builtin_expect(!!(x), 0)
 150
 151#ifdef __LP64__
 152#define MEM_SUPPORT_64BIT_DATA  1
 153#else
 154#define MEM_SUPPORT_64BIT_DATA  0
 155#endif
 156
 157/**
 158 * tools_build() - check if we are building host tools
 159 *
 160 * @return true if building for the host, false if for a target
 161 */
 162static inline bool tools_build(void)
 163{
 164#ifdef USE_HOSTCC
 165        return true;
 166#else
 167        return false;
 168#endif
 169}
 170
 171#endif
 172