89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
/** @file
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* IPRT - Linux symver and compatibility definitions.
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*/
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/*
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* Copyright (C) 2008-2023 Oracle and/or its affiliates.
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*
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* This file is part of VirtualBox base platform packages, as
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* available from https://www.virtualbox.org.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, in version 3 of the
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* License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <https://www.gnu.org/licenses>.
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*
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* The contents of this file may alternatively be used under the terms
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* of the Common Development and Distribution License Version 1.0
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* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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* in the VirtualBox distribution, in which case the provisions of the
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* CDDL are applicable instead of those of the GPL.
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*
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* You may elect to license modified versions of this file under the
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* terms and conditions of either the GPL or the CDDL or both.
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*
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* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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*/
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/* Various tricks to produce binaries which can be run on old Linux
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* distributions. This will almost certainly need updating as time
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* goes by. */
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#ifndef IPRT_INCLUDED_linux_symvers_h
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#define IPRT_INCLUDED_linux_symvers_h
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#ifndef RT_WITHOUT_PRAGMA_ONCE
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# pragma once
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#endif
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/* Please use -fno-stack-protector on the command line to avoid stack check
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* functions which are not available in EL3 for 32-bit builds. */
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/* Use versions of glibc symbols which are available in 32-bit EL3 or
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* 64-bit EL4. Currently only those symbols needed by the Additions,
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* though this could probably be extended to work for host builds too. */
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#if defined(RT_ARCH_AMD64)
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__asm__(".symver memcpy,memcpy@GLIBC_2.2.5");
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__asm__(".symver posix_spawn,posix_spawn@GLIBC_2.2.5");
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#else /* RT_ARCH_X86 */
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__asm__(".symver posix_spawn,posix_spawn@GLIBC_2.2");
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#endif
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/* Do not use *_chk functions */
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#undef _FORTIFY_SOURCE
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/* Do not use __isoc99_* functions */
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#undef __USE_GNU
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#define __USE_GNU 1
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/* And EL5 wants this too with __USE_GNU */
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#undef _GNU_SOURCE
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#define _GNU_SOURCE 1
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/* Tell IPRT not to use newer functions */
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#include <features.h>
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#undef __GLIBC_MINOR__
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#define __GLIBC_MINOR__ 3
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/* Do not use fcntl64 */
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#include <fcntl.h>
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#ifdef fnctl
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# undef fcntl
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#endif
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#if defined(RT_ARCH_AMD64)
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__asm__(".symver fcntl64,fcntl@GLIBC_2.2.5");
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#else
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__asm__(".symver fcntl64,fcntl@GLIBC_2.0");
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#endif
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/* Do not use ISO C99 scanf which has a glibc 2.7 dependency. */
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#undef __GLIBC_USE_DEPRECATED_SCANF
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#define __GLIBC_USE_DEPRECATED_SCANF 1
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#endif /* !IPRT_INCLUDED_linux_symvers_h */
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