libcxxabi/include/__cxxabi_config.h

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef ____CXXABI_CONFIG_H
  10 #define ____CXXABI_CONFIG_H
  11
  12 #if defined(__arm__) && !defined(__USING_SJLJ_EXCEPTIONS__) &&                 \
  13     !defined(__ARM_DWARF_EH__) && !defined(__SEH__)
  14 #define _LIBCXXABI_ARM_EHABI
  15 #endif
  16
  17 #if !defined(__has_attribute)
  18 #define __has_attribute(_attribute_) 0
  19 #endif
  20
  21 #if defined(__clang__)
  22 #  define _LIBCXXABI_COMPILER_CLANG
  23 #  ifndef __apple_build_version__
  24 #    define _LIBCXXABI_CLANG_VER (__clang_major__ * 100 + __clang_minor__)
  25 #  endif
  26 #elif defined(__GNUC__)
  27 #  define _LIBCXXABI_COMPILER_GCC
  28 #elif defined(_MSC_VER)
  29 #  define _LIBCXXABI_COMPILER_MSVC
  30 #elif defined(__IBMCPP__)
  31 #  define _LIBCXXABI_COMPILER_IBM
  32 #endif
  33
  34 #if defined(_WIN32)
  35  #if defined(_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS) || (defined(__MINGW32__) && !defined(_LIBCXXABI_BUILDING_LIBRARY))
  36   #define _LIBCXXABI_HIDDEN
  37   #define _LIBCXXABI_DATA_VIS
  38   #define _LIBCXXABI_FUNC_VIS
  39   #define _LIBCXXABI_TYPE_VIS
  40  #elif defined(_LIBCXXABI_BUILDING_LIBRARY)
  41   #define _LIBCXXABI_HIDDEN
  42   #define _LIBCXXABI_DATA_VIS __declspec(dllexport)
  43   #define _LIBCXXABI_FUNC_VIS __declspec(dllexport)
  44   #define _LIBCXXABI_TYPE_VIS __declspec(dllexport)
  45  #else
  46   #define _LIBCXXABI_HIDDEN
  47   #define _LIBCXXABI_DATA_VIS __declspec(dllimport)
  48   #define _LIBCXXABI_FUNC_VIS __declspec(dllimport)
  49   #define _LIBCXXABI_TYPE_VIS __declspec(dllimport)
  50  #endif
  51 #else
  52  #if !defined(_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS)
  53   #define _LIBCXXABI_HIDDEN __attribute__((__visibility__("hidden")))
  54   #define _LIBCXXABI_DATA_VIS __attribute__((__visibility__("default")))
  55   #define _LIBCXXABI_FUNC_VIS __attribute__((__visibility__("default")))
  56   #if __has_attribute(__type_visibility__)
  57    #define _LIBCXXABI_TYPE_VIS __attribute__((__type_visibility__("default")))
  58   #else
  59    #define _LIBCXXABI_TYPE_VIS __attribute__((__visibility__("default")))
  60   #endif
  61  #else
  62   #define _LIBCXXABI_HIDDEN
  63   #define _LIBCXXABI_DATA_VIS
  64   #define _LIBCXXABI_FUNC_VIS
  65   #define _LIBCXXABI_TYPE_VIS
  66  #endif
  67 #endif
  68
  69 #if defined(_LIBCXXABI_COMPILER_MSVC)
  70 #define _LIBCXXABI_WEAK
  71 #else
  72 #define _LIBCXXABI_WEAK __attribute__((__weak__))
  73 #endif
  74
  75 #if defined(__clang__)
  76 #define _LIBCXXABI_COMPILER_CLANG
  77 #elif defined(__GNUC__)
  78 #define _LIBCXXABI_COMPILER_GCC
  79 #endif
  80
  81 #if __has_attribute(__no_sanitize__) && defined(_LIBCXXABI_COMPILER_CLANG)
  82 #define _LIBCXXABI_NO_CFI __attribute__((__no_sanitize__("cfi")))
  83 #else
  84 #define _LIBCXXABI_NO_CFI
  85 #endif
  86
  87 // wasm32 follows the arm32 ABI convention of using 32-bit guard.
  88 #if defined(__arm__) || defined(__wasm32__) || defined(__ARM64_ARCH_8_32__)
  89 #  define _LIBCXXABI_GUARD_ABI_ARM
  90 #endif
  91
  92 #if defined(_LIBCXXABI_COMPILER_CLANG)
  93 #  if !__has_feature(cxx_exceptions)
  94 #    define _LIBCXXABI_NO_EXCEPTIONS
  95 #  endif
  96 #elif defined(_LIBCXXABI_COMPILER_GCC) && !defined(__EXCEPTIONS)
  97 #  define _LIBCXXABI_NO_EXCEPTIONS
  98 #endif
  99
 100 #if defined(_WIN32)
 101 #define _LIBCXXABI_DTOR_FUNC __thiscall
 102 #else
 103 #define _LIBCXXABI_DTOR_FUNC
 104 #endif
 105
 106 #endif // ____CXXABI_CONFIG_H