headers/config/HaikuConfig.h

   1 /*
   2  * Copyright 2009-2010, Haiku, Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _CONFIG_HAIKU_CONFIG_H
   6 #define _CONFIG_HAIKU_CONFIG_H
   7
   8
   9 /* Determine the architecture and define macros for some fundamental
  10    properties:
  11    __HAIKU_ARCH                                 - short name of the architecture (used in paths)
  12    __HAIKU_ARCH_ABI                             - name of ABI (as in package architecture)
  13    __HAIKU_ARCH_<arch>                  - defined to 1 for the respective architecture
  14    __HAIKU_ARCH_BITS                    - defined to 32/64 on 32/64 bit architectures
  15                                                                   (defaults to 32)
  16    __HAIKU_ARCH_PHYSICAL_BITS   - defined to 32/64 on architectures with 32/64
  17                                                                   (defaults to __HAIKU_ARCH_BITS)
  18    __HAIKU_BIG_ENDIAN                   - defined to 1 on big endian architectures
  19                                                                   (defaults to undefined)
  20 */
  21 #ifdef __INTEL__
  22 #       define __HAIKU_ARCH                                     x86
  23 #       if __GNUC__ == 2
  24 #               define __HAIKU_ARCH_ABI                 "x86_gcc2"
  25 #       else
  26 #               define __HAIKU_ARCH_ABI                 "x86"
  27 #       endif
  28 #       define __HAIKU_ARCH_X86                         1
  29 #       define __HAIKU_ARCH_PHYSICAL_BITS       64
  30 #elif __x86_64__
  31 #       define __HAIKU_ARCH                                     x86_64
  32 #       define __HAIKU_ARCH_ABI                         "x86_64"
  33 #       define __HAIKU_ARCH_X86_64                      1
  34 #       define __HAIKU_ARCH_BITS                        64
  35 #elif __POWERPC__
  36 #       define __HAIKU_ARCH                                     ppc
  37 #       define __HAIKU_ARCH_ABI                         "ppc"
  38 #       define __HAIKU_ARCH_PPC                         1
  39 #       define __HAIKU_ARCH_PHYSICAL_BITS       64
  40 #       define __HAIKU_BIG_ENDIAN                       1
  41 #elif __M68K__
  42 #       define __HAIKU_ARCH                                     m68k
  43 #       define __HAIKU_ARCH_ABI                         "m68k"
  44 #       define __HAIKU_ARCH_M68K                        1
  45 #       define __HAIKU_BIG_ENDIAN                       1
  46 #elif __MIPSEL__
  47 #       define __HAIKU_ARCH                                     mipsel
  48 #       define __HAIKU_ARCH_ABI                         "mipsel"
  49 #       define __HAIKU_ARCH_MIPSEL                      1
  50 #elif __ARM__ || __ARMEL__
  51 #       define __HAIKU_ARCH                                     arm
  52 #       define __HAIKU_ARCH_ABI                         "arm"
  53 #       define __HAIKU_ARCH_ARM                         1
  54 #elif __ARMEB__
  55 #       define __HAIKU_ARCH                                     armeb
  56 #       define __HAIKU_ARCH_ABI                         "armeb"
  57 #       define __HAIKU_ARCH_ARM                         1
  58 #       define __HAIKU_BIG_ENDIAN                       1
  59 #else
  60 #       error Unsupported architecture!
  61 #endif
  62
  63 /* implied properties:
  64    __HAIKU_ARCH_{32,64}_BIT             - defined to 1 on 32/64 bit architectures, i.e.
  65                                                                   using 32/64 bit virtual addresses
  66    __HAIKU_ARCH_PHYSICAL_BITS   - defined to 32/64 on architectures with 32/64
  67                                                                   bit physical addresses
  68    __HAIKU_ARCH_PHYSICAL_{32,64}_BIT - defined to 1 on architectures using 64
  69                                                                   bit physical addresses
  70    __HAIKU_BIG_ENDIAN                   - defined to 1 on big endian architectures
  71 */
  72
  73 /* bitness */
  74 #ifndef __HAIKU_ARCH_BITS
  75 #       define __HAIKU_ARCH_BITS                32
  76 #endif
  77
  78 #if __HAIKU_ARCH_BITS == 32
  79 #       define __HAIKU_ARCH_32_BIT              1
  80 #elif __HAIKU_ARCH_BITS == 64
  81 #       define __HAIKU_ARCH_64_BIT              1
  82 #else
  83 #       error Unsupported bitness!
  84 #endif
  85
  86 /* physical bitness */
  87 #ifndef __HAIKU_ARCH_PHYSICAL_BITS
  88 #       define __HAIKU_ARCH_PHYSICAL_BITS       __HAIKU_ARCH_BITS
  89 #endif
  90
  91 #if __HAIKU_ARCH_PHYSICAL_BITS == 32
  92 #       define __HAIKU_ARCH_PHYSICAL_32_BIT     1
  93 #elif __HAIKU_ARCH_PHYSICAL_BITS == 64
  94 #       define __HAIKU_ARCH_PHYSICAL_64_BIT     1
  95 #else
  96 #       error Unsupported physical bitness!
  97 #endif
  98
  99 /* endianess */
 100 #ifndef __HAIKU_BIG_ENDIAN
 101 #       define  __HAIKU_LITTLE_ENDIAN   1
 102 #endif
 103
 104 /* architecture specific include macros */
 105 #define __HAIKU_ARCH_HEADER(header)                                     <arch/__HAIKU_ARCH/header>
 106 #define __HAIKU_SUBDIR_ARCH_HEADER(subdir, header)      \
 107         <subdir/arch/__HAIKU_ARCH/header>
 108
 109 /* BeOS R5 binary compatibility (gcc 2 on x86) */
 110 #if defined(__HAIKU_ARCH_X86) && __GNUC__ == 2
 111 #       define __HAIKU_BEOS_COMPATIBLE  1
 112 #endif
 113
 114 /* BeOS R5 compatible types */
 115 #ifndef __HAIKU_ARCH_64_BIT
 116 /*#ifdef __HAIKU_ARCH_X86*/
 117         /* TODO: This should be "#ifdef __HAIKU_BEOS_COMPATIBLE", but this will
 118            break all gcc 4 C++ optional packages. I.e. switch that at a suitable
 119            time.
 120         */
 121 #       define __HAIKU_BEOS_COMPATIBLE_TYPES    1
 122 #endif
 123
 124
 125 #endif  /* _CONFIG_HAIKU_CONFIG_H */