libcxxabi/include/__cxxabi_config.h

   1 //===-------------------------- __cxxabi_config.h -------------------------===//
   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__)
  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(_WIN32)
  22  #if defined(_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS)
  23   #define _LIBCXXABI_HIDDEN
  24   #define _LIBCXXABI_DATA_VIS
  25   #define _LIBCXXABI_FUNC_VIS
  26   #define _LIBCXXABI_TYPE_VIS
  27  #elif defined(_LIBCXXABI_BUILDING_LIBRARY)
  28   #define _LIBCXXABI_HIDDEN
  29   #define _LIBCXXABI_DATA_VIS __declspec(dllexport)
  30   #define _LIBCXXABI_FUNC_VIS __declspec(dllexport)
  31   #define _LIBCXXABI_TYPE_VIS __declspec(dllexport)
  32  #else
  33   #define _LIBCXXABI_HIDDEN
  34   #define _LIBCXXABI_DATA_VIS __declspec(dllimport)
  35   #define _LIBCXXABI_FUNC_VIS __declspec(dllimport)
  36   #define _LIBCXXABI_TYPE_VIS __declspec(dllimport)
  37  #endif
  38 #else
  39  #if !defined(_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS)
  40   #define _LIBCXXABI_HIDDEN __attribute__((__visibility__("hidden")))
  41   #define _LIBCXXABI_DATA_VIS __attribute__((__visibility__("default")))
  42   #define _LIBCXXABI_FUNC_VIS __attribute__((__visibility__("default")))
  43   #if __has_attribute(__type_visibility__)
  44    #define _LIBCXXABI_TYPE_VIS __attribute__((__type_visibility__("default")))
  45   #else
  46    #define _LIBCXXABI_TYPE_VIS __attribute__((__visibility__("default")))
  47   #endif
  48  #else
  49   #define _LIBCXXABI_HIDDEN
  50   #define _LIBCXXABI_DATA_VIS
  51   #define _LIBCXXABI_FUNC_VIS
  52   #define _LIBCXXABI_TYPE_VIS
  53  #endif
  54 #endif
  55
  56 #if defined(_WIN32)
  57 #define _LIBCXXABI_WEAK
  58 #else
  59 #define _LIBCXXABI_WEAK __attribute__((__weak__))
  60 #endif
  61
  62 #if defined(__clang__)
  63 #define _LIBCXXABI_COMPILER_CLANG
  64 #elif defined(__GNUC__)
  65 #define _LIBCXXABI_COMPILER_GCC
  66 #endif
  67
  68 #if __has_attribute(__no_sanitize__) && defined(_LIBCXXABI_COMPILER_CLANG)
  69 #define _LIBCXXABI_NO_CFI __attribute__((__no_sanitize__("cfi")))
  70 #else
  71 #define _LIBCXXABI_NO_CFI
  72 #endif
  73
  74 // wasm32 follows the arm32 ABI convention of using 32-bit guard.
  75 #if defined(__arm__) || defined(__wasm32__)
  76 #  define _LIBCXXABI_GUARD_ABI_ARM
  77 #endif
  78
  79 #endif // ____CXXABI_CONFIG_H