Markus F.X.J. Oberhumer
81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
/* system_features.h -- libc and libc++ features
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This file is part of the UPX executable compressor.
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Copyright (C) 1996-2025 Markus Franz Xaver Johannes Oberhumer
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All Rights Reserved.
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UPX and the UCL library are free software; you can redistribute them
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and/or modify them under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING.
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If not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Markus F.X.J. Oberhumer
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<markus@oberhumer.com>
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*/
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#pragma once
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#include "system_defs.h"
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#if defined(__has_include)
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#if __has_include(<features.h>)
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#include <features.h> // for __GLIBC__ and __GLIBC_MINOR__
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#endif
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#endif
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// libc++ hardenining
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#if defined(__cplusplus) && 0 // TODO later
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#if !defined(_LIBCPP_HARDENING_MODE)
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#if defined(__clang__) && defined(__clang_major__) && (__clang_major__ + 0 >= 18)
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#if DEBUG
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#define _LIBCPP_HARDENING_MODE _LIBCPP_HARDENING_MODE_DEBUG
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#else
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#define _LIBCPP_HARDENING_MODE _LIBCPP_HARDENING_MODE_EXTENSIVE
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#endif
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#endif // clang >= 18
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#endif // _LIBCPP_HARDENING_MODE
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#if !defined(_LIBCPP_ENABLE_ASSERTIONS)
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#if defined(__clang__) && defined(__clang_major__) && (__clang_major__ + 0 < 18)
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#if DEBUG
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#define _LIBCPP_ENABLE_ASSERTIONS 1
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#endif
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#endif // clang < 18
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#endif // _LIBCPP_ENABLE_ASSERTIONS
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#endif // TODO later
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// aligned_alloc() was added in glibc-2.16
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#if !defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) && defined(__cplusplus)
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#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) && (__GLIBC__ + 0 == 2) && \
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(__GLIBC_MINOR__ + 0 > 0) && (__GLIBC_MINOR__ + 0 < 16)
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#define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
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#endif
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#endif // _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
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#if defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) && defined(__cplusplus)
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#if defined(__has_include)
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#if __has_include(<__config>)
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#include <__config>
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#undef _LIBCPP_HAS_LIBRARY_ALIGNED_ALLOCATION
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#undef _LIBCPP_HAS_ALIGNED_ALLOCATION
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#define _LIBCPP_HAS_LIBRARY_ALIGNED_ALLOCATION 0
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#define _LIBCPP_HAS_ALIGNED_ALLOCATION 0
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#endif
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#endif
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#endif // _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
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/* vim:set ts=4 sw=4 et: */
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