Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 89 insertions, 0 deletions

diff --git a/include/iprt/linux/symvers.h b/include/iprt/linux/symvers.h
new file mode 100644
index 00000000..0a8ef1b7
--- /dev/null
+++ b/include/iprt/linux/symvers.h
@@ -0,0 +1,89 @@
+/** @file
+ * IPRT - Linux symver and compatibility definitions.
+ */
+
+/*
+ * Copyright (C) 2008-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+/* Various tricks to produce binaries which can be run on old Linux
+ * distributions.  This will almost certainly need updating as time
+ * goes by. */
+
+#ifndef IPRT_INCLUDED_linux_symvers_h
+#define IPRT_INCLUDED_linux_symvers_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+/* Please use -fno-stack-protector on the command line to avoid stack check
+ * functions which are not available in EL3 for 32-bit builds. */
+
+/* Use versions of glibc symbols which are available in 32-bit EL3 or
+ * 64-bit EL4.  Currently only those symbols needed by the Additions,
+ * though this could probably be extended to work for host builds too. */
+#if defined(RT_ARCH_AMD64)
+__asm__(".symver memcpy,memcpy@GLIBC_2.2.5");
+__asm__(".symver posix_spawn,posix_spawn@GLIBC_2.2.5");
+#else  /* RT_ARCH_X86 */
+__asm__(".symver posix_spawn,posix_spawn@GLIBC_2.2");
+#endif
+
+/* Do not use *_chk functions */
+#undef _FORTIFY_SOURCE
+
+/* Do not use __isoc99_* functions */
+#undef __USE_GNU
+#define __USE_GNU 1
+
+/* And EL5 wants this too with __USE_GNU */
+#undef _GNU_SOURCE
+#define _GNU_SOURCE 1
+
+/* Tell IPRT not to use newer functions */
+#include <features.h>
+#undef __GLIBC_MINOR__
+#define __GLIBC_MINOR__ 3
+
+/* Do not use fcntl64 */
+#include <fcntl.h>
+#ifdef fnctl
+# undef fcntl
+#endif
+#if defined(RT_ARCH_AMD64)
+__asm__(".symver fcntl64,fcntl@GLIBC_2.2.5");
+#else
+__asm__(".symver fcntl64,fcntl@GLIBC_2.0");
+#endif
+
+/* Do not use ISO C99 scanf which has a glibc 2.7 dependency. */
+#undef __GLIBC_USE_DEPRECATED_SCANF
+#define __GLIBC_USE_DEPRECATED_SCANF 1
+#endif /* !IPRT_INCLUDED_linux_symvers_h */