mirror of
https://github.com/intel/linux-sgx
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Li, Xun
132 lines
4.6 KiB
Plaintext
132 lines
4.6 KiB
Plaintext
/*
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* Copyright (C) 2011-2020 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef __LIBCPP_SGX
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#define __LIBCPP_SGX
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/*
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* libc++ configuration file specific to SGX SDK
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* It is internal libc++ header - DO NOT include it directly
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*/
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#ifndef UNREFERENCED_PARAMETER
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# define UNREFERENCED_PARAMETER(P) (P)
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#endif //UNREFERENCED_PARAMETER
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// SECTION 1: NEW DEFINES SPECIFIC TO SGX
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#define _LIBCPP_SGX_CONFIG
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/* No I/O operations that involve OCALLs allowed */
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#define _LIBCPP_SGX_NO_IOSTREAMS
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// Define to replace usage of __cplusplus
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// The compiler sets this to latest standard it supports although we want code using
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// this to conform to C++11 not C++14 or later.
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// More specific we should not compile code under __cplusplus > 201103L.
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// Code under __cplusplus >= 201103L is fine.
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#define sgx__cplusplus 201103L
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// We need to make sure that where __cplusplus is used in defines it always goes to path for
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// #define __cplusplus 201103L because it might be defined to something higher.
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// Set SGX specific endianess below
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#include <sys/endian.h>
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#ifdef _LIBCPP_LITTLE_ENDIAN
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#undef _LIBCPP_LITTLE_ENDIAN
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#endif // _LIBCPP_LITTLE_ENDIAN
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#ifdef _LIBCPP_BIG_ENDIAN
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#undef _LIBCPP_BIG_ENDIAN
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#endif //_LIBCPP_BIG_ENDIAN
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#if _BYTE_ORDER == _LITTLE_ENDIAN
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# define _LIBCPP_LITTLE_ENDIAN 1
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# define _LIBCPP_BIG_ENDIAN 0
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#else // _BYTE_ORDER == _LITTLE_ENDIAN
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# define _LIBCPP_LITTLE_ENDIAN 0
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# define _LIBCPP_BIG_ENDIAN 1
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#endif // _BYTE_ORDER == _LITTLE_ENDIAN
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// Use sgx assert
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#include <assert.h>
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#if defined(_LIBCPP_ASSERT)
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#undef _LIBCPP_ASSERT
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#endif // _LIBCPP_ASSERT
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#define _LIBCPP_ASSERT(x, m) (assert(x))
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// RTTI comes from cpprt. Undefine NO_RTTI
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#if defined(_LIBCPP_NO_RTTI)
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#undef _LIBCPP_NO_RTTI
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#endif // _LIBCPP_NO_RTTI
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#if defined(__GNUC__)
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/////////////
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// SECTION 2: UNDEF VARIOUS LIBC++ DEFINES FOR SUPPORTED FEATURES
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/////////////
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#undef _LIBCPP_USING_DEV_RANDOM
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#define _LIBCPP_USING_SGX_RANDOM
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#undef _LIBCPP_NO_EXCEPTIONS
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#undef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
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#undef _LIBCPP_HAS_NO_CONSTEXPR
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#undef _LIBCPP_HAS_NO_UNICODE_CHARS
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#undef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
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#undef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
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#undef _LIBCPP_HAS_NO_VARIADICS
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#undef _LIBCPP_HAS_NO_ADVANCED_SFINAE
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#undef _LIBCPP_HAS_NO_VARIABLE_TEMPLATES // Will be set
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#undef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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#undef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
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//#undef _LIBCPP_DEBUG // TBD. Debug without I/O?
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#undef _LIBCPP_HAS_QUICK_EXIT
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#undef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS // Not used
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// Current goal is to support C++11 so define the version accordingly.
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// Libc++ also supports 14 and beyond.
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#define _LIBCPP_STD_VER 11
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/////////////
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// SECTION 3: DEFINE VARIOUS LIBC++ DEFINES TO CUSTOMIZE USAGE FOR SGX
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/////////////
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#define _LIBCPP_HAS_NO_THREADS
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#define _LIBCPP_HAS_NO_STDIN
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#define _LIBCPP_HAS_NO_STDOUT
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#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
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#undef _LIBCPP_SGX_HAS_NO_THREADS
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#undef _LIBCPP_SGX_HAS_NO_ATOMIC
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/////////////
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// SECTION 4: SGX specific defines which replace __has_feature(cxx_something)
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/////////////
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#define _LIBCPP_SGX_HAS_CXX_ATOMIC //__has_feature(cxx_atomic)
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#endif
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#endif // _LIBCPP_SGX
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