mbed-os/rtos/rtx/TARGET_CORTEX_M/rt_OsEventObserver.c

56 lines
2.5 KiB
C

/*----------------------------------------------------------------------------
* CMSIS-RTOS - RTX
*----------------------------------------------------------------------------
* Name: rt_OsEventObserver.c
* Purpose: OS Event Callbacks for CMSIS RTOS
* Rev.: VX.XX
*----------------------------------------------------------------------------
*
* Copyright (c) 1999-2009 KEIL, 2009-2015 ARM Germany GmbH
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*---------------------------------------------------------------------------*/
#include "rt_OsEventObserver.h"
/*
* _____ _____ ____ __ _____
* | ___|_ _\ \/ / \/ | ____|
* | |_ | | \ /| |\/| | _|
* | _| | | / \| | | | |___
* |_| |___/_/\_\_| |_|_____|
*
* FIXME:
* The osEventObs variable must be in protected memory. If not every box
* and box 0 can modify osEventObs to point to any handler to run code
* privileged. This issue is tracked at
* <https://github.com/ARMmbed/uvisor/issues/235>.
*/
const OsEventObserver *osEventObs;
void osRegisterForOsEvents(const OsEventObserver *observer)
{
osEventObs = observer;
}