From 16f504a9dca3fe3b70568f67b7d41241ae485288 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:49:04 +0200 Subject: Adding upstream version 7.0.6-dfsg. Signed-off-by: Daniel Baumann --- src/VBox/Devices/Storage/swab.h | 74 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 src/VBox/Devices/Storage/swab.h (limited to 'src/VBox/Devices/Storage/swab.h') diff --git a/src/VBox/Devices/Storage/swab.h b/src/VBox/Devices/Storage/swab.h new file mode 100644 index 00000000..36f74471 --- /dev/null +++ b/src/VBox/Devices/Storage/swab.h @@ -0,0 +1,74 @@ +/* $Id: swab.h $ */ +/** @file + * + * VBox storage devices: + * C++-safe replacements for some Linux byte order macros + * + * On Linux, DrvHostDVD.cpp includes , which in turn + * includes . Unfortunately, that file is not very + * C++ friendly, and our C++ compiler refuses to look at it. The solution + * is to define _LINUX_BYTEORDER_SWAB_H, which prevents that file's contents + * from getting included at all, and to provide, in this file, our own + * C++-proof versions of the macros which are needed by + * before we include that file. We actually provide them as inline + * functions, due to the way they get resolved in the original. + */ + +/* + * Copyright (C) 2006-2022 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 . + * + * SPDX-License-Identifier: GPL-3.0-only + */ + +#ifndef VBOX_INCLUDED_SRC_Storage_swab_h +#define VBOX_INCLUDED_SRC_Storage_swab_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#define _LINUX_BYTEORDER_SWAB_H +#define _LINUX_BYTEORDER_SWABB_H + +#include + +/* Sorry for the unnecessary brackets here, but I really think + readability requires them */ +static __inline__ __u16 __swab16p(const __u16 *px) +{ + __u16 x = *px; + return ((x & 0xff) << 8) | ((x >> 8) & 0xff); +} + +static __inline__ __u32 __swab32p(const __u32 *px) +{ + __u32 x = *px; + return ((x & 0xff) << 24) | ((x & 0xff00) << 8) + | ((x >> 8) & 0xff00) | ((x >> 24) & 0xff); +} + +static __inline__ __u64 __swab64p(const __u64 *px) +{ + __u64 x = *px; + return ((x & 0xff) << 56) | ((x & 0xff00) << 40) + | ((x & 0xff0000) << 24) | ((x & 0xff000000) << 8) + | ((x >> 8) & 0xff000000) | ((x >> 24) & 0xff0000) + | ((x >> 40) & 0xff00) | ((x >> 56) & 0xff); +} + +#endif /* !VBOX_INCLUDED_SRC_Storage_swab_h */ -- cgit v1.2.3