arch/.unmaintained/morphos/Include/aros/system.h

   1 #pragma pack(2)
   2 #ifndef AROS_SYSTEM_H
   3 #define AROS_SYSTEM_H
   4
   5 /*
   6     Copyright © 1995-2003, The AROS Development Team. All rights reserved.
   7     $Id$
   8
   9     Desc: Analyse the current kind of system and compiler.
  10     Lang: english
  11 */
  12
  13 #ifndef __AROS__
  14 #   define __AROS__
  15 #endif
  16 #ifndef AROS_MACHINE_H
  17 #   include <aros/machine.h>
  18 #endif
  19
  20 /**************************************
  21                 Defines
  22 **************************************/
  23 /* 1. Analyze system: Specify a definitive define for each system */
  24 #if defined(_AMIGA) || defined(AMIGA)
  25 #   ifndef _AMIGA /* One define for each system */
  26 #       define _AMIGA
  27 #   endif
  28 #endif
  29
  30 /*
  31  * 2. Analyze compiler for STD C/C++.
  32  *
  33  * We test for the following:
  34  * a.   extern "C" linkage required for programs.
  35  * b.   inline, const, volatile, restrict keywords defined in
  36  *      newer C/C++ standards.
  37  */
  38
  39 #if defined(__cplusplus)
  40 #   define EXTERN extern "C"
  41 #   define BEGIN_EXTERN     extern "C" {
  42 #   define END_EXTERN       };
  43 #else
  44 #   define EXTERN extern
  45 #   define BEGIN_EXTERN
  46 #   define END_EXTERN
  47 #endif
  48
  49 #if defined(__STDC__) || defined(__cplusplus)
  50 #define     __const__       const
  51 #define     __inline__      inline
  52 #define     __volatile__    volatile
  53
  54 /*
  55  * C99 defines a new keyword restrict that can help do optimisation where
  56  * pointers are used in programs. We'd like to support optimisation :-)
  57  */
  58 #if defined(__STDC__VERSION__) &&  __STDC__VERSION__ >= 199901L
  59 #define     __restrict__    restrict
  60 #else
  61 #define     __restrict__
  62 #define     restrict
  63 #endif
  64
  65 #else
  66 #define     __const__
  67 #define     const
  68 #define     __inline__
  69 #define     inline
  70 #define     __volatile__
  71 #define     volatile
  72 #define     __restrict__
  73 #define     restrict
  74 #endif
  75
  76 /* 3. Macros for making things more efficient */
  77 #if __GNUC__ < 2 || __GNUC__ == 2 && __GNUC_MINOR__ < 5
  78 #define __unused
  79 #define __noreturn
  80 #define __noeffect
  81 #endif
  82 #if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
  83 #define __unused
  84 #define __noreturn  __attribute__((__noreturn__))
  85 #define __noeffect  __attribute__((__const__))
  86 #endif
  87 #if __GNUC__ == 2 && __GNUC_MINOR__ >= 7
  88 #define __unused    __attribute__((__unused__))
  89 #define __noreturn  __attribute__((__noreturn__))
  90 #define __noeffect  __attribute__((__const__))
  91 #endif
  92
  93 /* 4. Makros for debugging and development */
  94 #if !defined(TEST) && !defined(DEBUG)
  95 #   define NDEBUG
  96 #endif
  97 #pragma pack()
  98 #include <assert.h>
  99 #pragma pack(2)
 100
 101 /* 5. Sytem-specific files */
 102 #ifdef _AMIGA
 103 #   include <aros/amiga.h>
 104 #endif
 105 #ifdef linux
 106 #   include <aros/linux.h>
 107 #endif
 108 #ifdef _OSF1
 109 #   include <aros/alpha.h>
 110 #endif
 111 #ifdef __FreeBSD__
 112 #   include <aros/freebsd.h>
 113 #endif
 114 #ifdef __NetBSD__
 115 #   include <aros/netbsd.h>
 116 #endif
 117 #ifdef __CYGWIN32__
 118 #   include <aros/cygwin.h>
 119 #endif
 120
 121 /* 4. Calculated #defines */
 122 #if !AROS_STACK_GROWS_DOWNWARDS
 123 #   define AROS_SLOWSTACKTAGS
 124 #   define AROS_SLOWSTACKMETHODS
 125 #endif /* !AROS_STACK_GROWS_DOWNWARDS */
 126
 127 #endif /* AROS_SYSTEM_H */
 128 #pragma pack()