include/sys/isa_defs.h

   1 /*****************************************************************************\
   2  *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
   3  *  Copyright (C) 2007 The Regents of the University of California.
   4  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
   5  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
   6  *  UCRL-CODE-235197
   7  *
   8  *  This file is part of the SPL, Solaris Porting Layer.
   9  *  For details, see <http://github.com/behlendorf/spl/>.
  10  *
  11  *  The SPL is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the
  13  *  Free Software Foundation; either version 2 of the License, or (at your
  14  *  option) any later version.
  15  *
  16  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
  17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19  *  for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License along
  22  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
  23 \*****************************************************************************/
  24
  25 #ifndef _SPL_ISA_DEFS_H
  26 #define _SPL_ISA_DEFS_H
  27
  28 /* x86_64 arch specific defines */
  29 #if defined(__x86_64) || defined(__x86_64__)
  30
  31 #if !defined(__x86_64)
  32 #define __x86_64
  33 #endif
  34
  35 #if !defined(__amd64)
  36 #define __amd64
  37 #endif
  38
  39 #if !defined(__x86)
  40 #define __x86
  41 #endif
  42
  43 #if !defined(_LP64)
  44 #define _LP64
  45 #endif
  46
  47 /* i386 arch specific defines */
  48 #elif defined(__i386) || defined(__i386__)
  49
  50 #if !defined(__i386)
  51 #define __i386
  52 #endif
  53
  54 #if !defined(__x86)
  55 #define __x86
  56 #endif
  57
  58 #if !defined(_ILP32)
  59 #define _ILP32
  60 #endif
  61
  62 /* powerpc (ppc64) arch specific defines */
  63 #elif defined(__powerpc) || defined(__powerpc__)
  64
  65 #if !defined(__powerpc)
  66 #define __powerpc
  67 #endif
  68
  69 #if !defined(__powerpc__)
  70 #define __powerpc__
  71 #endif
  72
  73 #if !defined(_LP64)
  74 #define _LP64
  75 #endif
  76
  77 /* arm arch specific defines */
  78 #elif defined(__arm) || defined(__arm__)
  79
  80 #if !defined(__arm)
  81 #define __arm
  82 #endif
  83
  84 #if !defined(__arm__)
  85 #define __arm__
  86 #endif
  87
  88 #if defined(__ARMEL__)
  89 #define _LITTLE_ENDIAN
  90 #else
  91 #define _BIG_ENDIAN
  92 #endif
  93
  94 #else /* Currently only x86_64, i386, arm, and powerpc arches supported */
  95 #error "Unsupported ISA type"
  96 #endif
  97
  98 #if defined(_ILP32) && defined(_LP64)
  99 #error "Both _ILP32 and _LP64 are defined"
 100 #endif
 101
 102 #include <sys/byteorder.h>
 103
 104 #if defined(__LITTLE_ENDIAN) && !defined(_LITTLE_ENDIAN)
 105 #define _LITTLE_ENDIAN __LITTLE_ENDIAN
 106 #endif
 107
 108 #if defined(__BIG_ENDIAN) && !defined(_BIG_ENDIAN)
 109 #define _BIG_ENDIAN __BIG_ENDIAN
 110 #endif
 111
 112 #if defined(_LITTLE_ENDIAN) && defined(_BIG_ENDIAN)
 113 #error "Both _LITTLE_ENDIAN and _BIG_ENDIAN are defined"
 114 #endif
 115
 116 #if !defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
 117 #error "Neither _LITTLE_ENDIAN or _BIG_ENDIAN are defined"
 118 #endif
 119
 120 #endif  /* _SPL_ISA_DEFS_H */