ACE/ace/config-g++-common.h

   1 // -*- C++ -*-
   2 // This configuration file is designed to be included by another,
   3 // specific configuration file.  It provides config information common
   4 // to all g++ platforms, including egcs.
   5
   6 #ifndef ACE_GNUG_COMMON_H
   7 #define ACE_GNUG_COMMON_H
   8 #include /**/ "ace/pre.h"
   9
  10 #if !defined (ACE_CC_NAME)
  11 # define ACE_CC_NAME ACE_TEXT ("g++")
  12 #endif
  13 #define ACE_CC_MAJOR_VERSION __GNUC__
  14 #define ACE_CC_MINOR_VERSION __GNUC_MINOR__
  15 #define ACE_CC_BETA_VERSION (0)
  16
  17 #if __cplusplus >= 202002L
  18 # define ACE_HAS_CPP20
  19 #endif
  20 #if __cplusplus >= 201703L
  21 # define ACE_HAS_CPP17
  22 # define ACE_FALLTHROUGH [[fallthrough]]
  23 #endif
  24 #if __cplusplus >= 201402L
  25 # define ACE_HAS_CPP14
  26 #endif
  27 #if __cplusplus >= 201103L
  28 # define ACE_HAS_CPP11
  29 # if !defined (ACE_FALLTHROUGH)
  30 #  if __GNUC__ >= 7
  31 #   define ACE_FALLTHROUGH [[gnu::fallthrough]]
  32 #  else
  33 #   define ACE_FALLTHROUGH
  34 #  endif
  35 # endif
  36 #endif
  37
  38 #if (defined (i386) || defined (__i386__)) && !defined (ACE_SIZEOF_LONG_DOUBLE)
  39 # define ACE_SIZEOF_LONG_DOUBLE 12
  40 #endif /* i386 */
  41
  42 #if !defined (__MINGW32__) && (defined (i386) || defined (__i386__))
  43   // If running an Intel, assume that it's a Pentium so that
  44   // ACE_OS::gethrtime () can use the RDTSC instruction.  If running a
  45   // 486 or lower, be sure to comment this out.  (If not running an
  46   // Intel CPU, this #define will not be seen because of the i386
  47   // protection, so it can be ignored.)
  48 # define ACE_HAS_PENTIUM
  49 #endif /* i386 */
  50
  51 #if (defined (ACE_HAS_PENTIUM) || defined (__amd64__) || defined (__x86_64__))
  52 # define ACE_HAS_INTEL_ASSEMBLY
  53 #endif
  54
  55 #if !defined (ACE_HAS_GCC_CONSTRUCTOR_ATTRIBUTE)
  56 #define ACE_HAS_GCC_CONSTRUCTOR_ATTRIBUTE 1
  57 #endif
  58
  59 #if !defined (ACE_HAS_GCC_DESTRUCTOR_ATTRIBUTE)
  60 #define ACE_HAS_GCC_DESTRUCTOR_ATTRIBUTE 1
  61 #endif
  62
  63 #if !defined (ACE_HAS_GCC_FORMAT_ATTRIBUTE)
  64 #define ACE_HAS_GCC_FORMAT_ATTRIBUTE 1
  65 #endif
  66
  67 #if (ACE_HAS_GCC_CONSTRUCTOR_ATTRIBUTE == 1)
  68 # define ACE_GCC_CONSTRUCTOR_ATTRIBUTE __attribute__ ((constructor))
  69 #endif
  70
  71 #if (ACE_HAS_GCC_DESTRUCTOR_ATTRIBUTE == 1)
  72 # define ACE_GCC_DESTRUCTOR_ATTRIBUTE __attribute__ ((destructor))
  73 #endif
  74
  75 #if (ACE_HAS_GCC_FORMAT_ATTRIBUTE == 1)
  76 # define ACE_GCC_FORMAT_ATTRIBUTE(TYPE, STR_INDEX, FIRST_INDEX) \
  77    __attribute__ ((format (TYPE, STR_INDEX, FIRST_INDEX)))
  78 #endif
  79
  80 // Take advantage of g++ visibility attributes to generate
  81 // improved shared library binaries.
  82 #if !defined (__MINGW32__)
  83
  84 # if defined (ACE_HAS_CUSTOM_EXPORT_MACROS) && ACE_HAS_CUSTOM_EXPORT_MACROS == 0
  85 #  undef ACE_HAS_CUSTOM_EXPORT_MACROS
  86 #  if defined (ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS)
  87 #    undef ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS
  88 #  endif /* ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS */
  89 #  define ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS 0
  90 # else
  91 #  ifndef ACE_HAS_CUSTOM_EXPORT_MACROS
  92 #    define ACE_HAS_CUSTOM_EXPORT_MACROS
  93 #  endif  /* !ACE_HAS_CUSTOM_EXPORT_MACROS */
  94 #  ifndef ACE_Proper_Export_Flag
  95 #    define ACE_Proper_Export_Flag __attribute__ ((visibility("default")))
  96 #  endif /* !ACE_Proper_Export_Flag */
  97 #  ifndef ACE_Proper_Import_Flag
  98 #    define ACE_Proper_Import_Flag __attribute__ ((visibility("default")))
  99 #  endif /* !ACE_Proper_Import_Flag */
 100
 101 #  ifndef ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS
 102 #    define ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS 1
 103 #  endif
 104
 105 #  if defined (ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS) && ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS == 1
 106 #   define ACE_EXPORT_SINGLETON_DECLARATION(T) __extension__ extern template class ACE_Proper_Export_Flag T
 107 #   define ACE_EXPORT_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK)  __extension__ extern template class ACE_Proper_Export_Flag SINGLETON_TYPE <CLASS, LOCK>;
 108 #   define ACE_HAS_EXPLICIT_TEMPLATE_CLASS_INSTANTIATION
 109 #  else  /* ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS */
 110 #   define ACE_EXPORT_SINGLETON_DECLARATION(T)     \
 111         _Pragma ("GCC visibility push(default)")  \
 112         template class T                          \
 113         _Pragma ("GCC visibility pop")
 114 #   define ACE_EXPORT_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK) \
 115         _Pragma ("GCC visibility push(default)")                    \
 116         template class SINGLETON_TYPE<CLASS, LOCK>;                 \
 117         _Pragma ("GCC visibility pop")
 118 #  endif /* ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS */
 119
 120 // Note that the "__extension__" is needed to prevent g++ from issuing
 121 // an error when using its "-pedantic" command line flag.
 122 # define ACE_IMPORT_SINGLETON_DECLARATION(T) __extension__ extern template class T
 123 # define ACE_IMPORT_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK) __extension__ extern template class SINGLETON_TYPE<CLASS, LOCK>;
 124
 125 # endif  /* ACE_HAS_CUSTOM_EXPORT_MACROS == 0 */
 126 #endif  /* !__MINGW32__ */
 127
 128 #if defined (ACE_HAS_THREADS)
 129 # if defined (__powerpc__)
 130 // The builtins seem to be provided for all powerpc platforms
 131 #   define ACE_HAS_GCC_ATOMIC_BUILTINS 1
 132 # endif
 133 # if defined (__ia64)
 134 // The builtins seem to be provided for the IA64 platforms
 135 #   define ACE_HAS_GCC_ATOMIC_BUILTINS 1
 136 # endif
 137 # if defined (__amd64__) || defined (__x86_64__)
 138 // The builtin's are provided also for 64bit linux
 139 #   define ACE_HAS_GCC_ATOMIC_BUILTINS 1
 140 # endif
 141 #endif /* ACE_HAS_THREADS */
 142
 143 #define ACE_GCC_NO_RETURN __attribute__ ((__noreturn__))
 144
 145 #include /**/ "ace/post.h"
 146 #endif /* ACE_GNUG_COMMON_H */