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- /*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
- #ifndef __LIBCPP_SGX
- #define __LIBCPP_SGX
- /*
- * libc++ configuration file specific to SGX SDK
- * It is internal libc++ header - DO NOT include it directly
- */
- #ifndef UNREFERENCED_PARAMETER
- # define UNREFERENCED_PARAMETER(P) (P)
- #endif //UNREFERENCED_PARAMETER
- // SECTION 1: NEW DEFINES SPECIFIC TO SGX
- #define _LIBCPP_SGX_CONFIG
- /* No I/O operations that involve OCALLs allowed */
- #define _LIBCPP_SGX_NO_IOSTREAMS
- // Define to replace usage of __cplusplus
- // The compiler sets this to latest standard it supports although we want code using
- // this to conform to C++11 not C++14 or later.
- // More specific we should not compile code under __cplusplus > 201103L.
- // Code under __cplusplus >= 201103L is fine.
- #define sgx__cplusplus 201103L
- // We need to make sure that where __cplusplus is used in defines it always goes to path for
- // #define __cplusplus 201103L because it might be defined to something higher.
- // Set SGX specific endianess below
- #include <sys/endian.h>
- #ifdef _LIBCPP_LITTLE_ENDIAN
- #undef _LIBCPP_LITTLE_ENDIAN
- #endif // _LIBCPP_LITTLE_ENDIAN
- #ifdef _LIBCPP_BIG_ENDIAN
- #undef _LIBCPP_BIG_ENDIAN
- #endif //_LIBCPP_BIG_ENDIAN
- #if _BYTE_ORDER == _LITTLE_ENDIAN
- # define _LIBCPP_LITTLE_ENDIAN 1
- # define _LIBCPP_BIG_ENDIAN 0
- #else // _BYTE_ORDER == _LITTLE_ENDIAN
- # define _LIBCPP_LITTLE_ENDIAN 0
- # define _LIBCPP_BIG_ENDIAN 1
- #endif // _BYTE_ORDER == _LITTLE_ENDIAN
- // Use sgx assert
- #include <assert.h>
- #if defined(_LIBCPP_ASSERT)
- #undef _LIBCPP_ASSERT
- #endif // _LIBCPP_ASSERT
- #define _LIBCPP_ASSERT(x, m) (assert(x))
- // RTTI comes from cpprt. Undefine NO_RTTI
- #if defined(_LIBCPP_NO_RTTI)
- #undef _LIBCPP_NO_RTTI
- #endif // _LIBCPP_NO_RTTI
- #if defined(__GNUC__)
- /////////////
- // SECTION 2: UNDEF VARIOUS LIBC++ DEFINES FOR SUPPORTED FEATURES
- /////////////
- #undef _LIBCPP_USING_DEV_RANDOM
- #define _LIBCPP_USING_SGX_RANDOM
- #undef _LIBCPP_NO_EXCEPTIONS
- #undef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
- #undef _LIBCPP_HAS_NO_CONSTEXPR
- #undef _LIBCPP_HAS_NO_UNICODE_CHARS
- #undef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
- #undef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
- #undef _LIBCPP_HAS_NO_VARIADICS
- #undef _LIBCPP_HAS_NO_ADVANCED_SFINAE
- #undef _LIBCPP_HAS_NO_VARIABLE_TEMPLATES // Will be set
- #undef _LIBCPP_HAS_NO_RVALUE_REFERENCES
- #undef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
- //#undef _LIBCPP_DEBUG // TBD. Debug without I/O?
- #undef _LIBCPP_HAS_QUICK_EXIT
- #undef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS // Not used
- // Current goal is to support C++11 so define the version accordingly.
- // Libc++ also supports 14 and beyond.
- #define _LIBCPP_STD_VER 11
- /////////////
- // SECTION 3: DEFINE VARIOUS LIBC++ DEFINES TO CUSTOMIZE USAGE FOR SGX
- /////////////
- #define _LIBCPP_HAS_NO_THREADS
- #define _LIBCPP_HAS_NO_STDIN
- #define _LIBCPP_HAS_NO_STDOUT
- #define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
- #undef _LIBCPP_SGX_HAS_NO_THREADS
- #undef _LIBCPP_SGX_HAS_NO_ATOMIC
- /////////////
- // SECTION 4: SGX specific defines which replace __has_feature(cxx_something)
- /////////////
- #define _LIBCPP_SGX_HAS_CXX_ATOMIC //__has_feature(cxx_atomic)
- #endif
- #endif // _LIBCPP_SGX
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