VBoxGuestLog.h revision 10cc687667528f8e56827010e11a48ac1b0f0eb5
/** @file
*
* VBoxGuestLib - A support library for VirtualBox guest additions:
* Guest Logging facility
*/
/*
* Copyright (C) 2006-2007 innotek GmbH
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file 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 2 as it comes in the "COPYING" file of the VirtualBox OSE
* distribution. VirtualBox OSE is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#ifndef __VBOXGUESTLOG__H
#define __VBOXGUESTLOG__H
#if defined(RT_OS_LINUX)
/* Since I don't know the background for the stuff below, I prefer not to
change it. I don't need it or want it for backdoor logging inside the
Linux Guest Additions kernel modules though. */
# include <VBox/log.h>
#else /* RT_OS_LINUX not defined */
/* Save LOG_ENABLED state, because "VBox/rt/log.h"
* may undefine it for IN_RING0 code.
*/
# if (defined(DEBUG) && !defined(NO_LOGGING)) || defined(LOG_ENABLED)
# define __LOG_ENABLED_SAVED__
# endif
# if (defined(DEBUG) && !defined(NO_LOGGING)) || defined(LOG_ENABLED)
# ifdef VBOX_GUEST
# include <VBox/log.h>
# undef Log
# define Log(a) RTLogBackdoorPrintf a
# else
# define Log(a) DbgPrint a
# endif
# else
# define Log(a)
# endif
# ifdef __LOG_ENABLED_SAVED__
# define LOG_ENABLED
# undef __LOG_ENABLED_SAVED__
# endif
#endif /* RT_OS_LINUX not defined */
#endif /* __VBOXGUESTLOG__H */