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_<arch> - defined to 1 for the respective architecture 13 __HAIKU_ARCH_BITS - defined to 32/64 on 32/64 bit architectures 14 (defaults to 32) 15 __HAIKU_ARCH_PHYSICAL_BITS - defined to 32/64 on architectures with 32/64 16 (defaults to __HAIKU_ARCH_BITS) 17 __HAIKU_BIG_ENDIAN - defined to 1 on big endian architectures 18 (defaults to undefined) 19 */ 20 #ifdef __INTEL__ 21 # define __HAIKU_ARCH x86 22 # define __HAIKU_ARCH_X86 1 23 # define __HAIKU_ARCH_PHYSICAL_BITS 64 24 #elif __x86_64__ 25 # define __HAIKU_ARCH x86_64 26 # define __HAIKU_ARCH_X86_64 1 27 # define __HAIKU_ARCH_BITS 64 28 #elif __POWERPC__ 29 # define __HAIKU_ARCH ppc 30 # define __HAIKU_ARCH_PPC 1 31 # define __HAIKU_BIG_ENDIAN 1 32 #elif __M68K__ 33 # define __HAIKU_ARCH m68k 34 # define __HAIKU_ARCH_M68K 1 35 # define __HAIKU_BIG_ENDIAN 1 36 #elif __MIPSEL__ 37 # define __HAIKU_ARCH mipsel 38 # define __HAIKU_ARCH_MIPSEL 1 39 #elif __ARM__ 40 # define __HAIKU_ARCH arm 41 # define __HAIKU_ARCH_ARM 1 42 #else 43 # error Unsupported architecture! 44 #endif 45 46 /* implied properties: 47 __HAIKU_ARCH_{32,64}_BIT - defined to 1 on 32/64 bit architectures, i.e. 48 using 32/64 bit virtual addresses 49 __HAIKU_ARCH_PHYSICAL_BITS - defined to 32/64 on architectures with 32/64 50 bit physical addresses 51 __HAIKU_ARCH_PHYSICAL_{32,64}_BIT - defined to 1 on architectures using 64 52 bit physical addresses 53 __HAIKU_BIG_ENDIAN - defined to 1 on big endian architectures 54 */ 55 56 /* bitness */ 57 #ifndef __HAIKU_ARCH_BITS 58 # define __HAIKU_ARCH_BITS 32 59 #endif 60 61 #if __HAIKU_ARCH_BITS == 32 62 # define __HAIKU_ARCH_32_BIT 1 63 #elif __HAIKU_ARCH_BITS == 64 64 # define __HAIKU_ARCH_64_BIT 1 65 #else 66 # error Unsupported bitness! 67 #endif 68 69 /* physical bitness */ 70 #ifndef __HAIKU_ARCH_PHYSICAL_BITS 71 # define __HAIKU_ARCH_PHYSICAL_BITS __HAIKU_ARCH_BITS 72 #endif 73 74 #if __HAIKU_ARCH_PHYSICAL_BITS == 32 75 # define __HAIKU_ARCH_PHYSICAL_32_BIT 1 76 #elif __HAIKU_ARCH_PHYSICAL_BITS == 64 77 # define __HAIKU_ARCH_PHYSICAL_64_BIT 1 78 #else 79 # error Unsupported physical bitness! 80 #endif 81 82 /* endianess */ 83 #ifndef __HAIKU_BIG_ENDIAN 84 # define __HAIKU_LITTLE_ENDIAN 1 85 #endif 86 87 /* architecture specific include macros */ 88 #define __HAIKU_ARCH_HEADER(header) <arch/__HAIKU_ARCH/header> 89 #define __HAIKU_SUBDIR_ARCH_HEADER(subdir, header) \ 90 <subdir/arch/__HAIKU_ARCH/header> 91 92 /* BeOS R5 binary compatibility (gcc 2 on x86) */ 93 #if defined(__HAIKU_ARCH_X86) && __GNUC__ == 2 94 # define __HAIKU_BEOS_COMPATIBLE 1 95 #endif 96 97 /* BeOS R5 compatible types */ 98 #ifndef __HAIKU_ARCH_64_BIT 99 /*#ifdef __HAIKU_ARCH_X86*/ 100 /* TODO: This should be "#ifdef __HAIKU_BEOS_COMPATIBLE", but this will 101 break all gcc 4 C++ optional packages. I.e. switch that at a suitable 102 time. 103 */ 104 # define __HAIKU_BEOS_COMPATIBLE_TYPES 1 105 #endif 106 107 108 #endif /* _CONFIG_HAIKU_CONFIG_H */ 109