zephyr/arch/arm/platforms/qemu_arm/nmi_on_reset.S

40 lines
1.1 KiB
ArmAsm

/* nmi_on_reset.S - default basic NMI handler before the kernel is up */
/*
* Copyright (c) 2013-2014 Wind River Systems, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
DESCRIPTION
Provide a default handler for NMI before the system is up. The default action
is to hard hang, sleeping.
This might be preferable than rebooting to help debugging, or because
rebooting might trigger the exact same problem over and over.
*/
#define _ASMLANGUAGE
#include <toolchain.h>
#include <sections.h>
_ASM_FILE_PROLOGUE
GTEXT(_SysNmiOnReset)
SECTION_FUNC(TEXT, _SysNmiOnReset)
wfi
b _SysNmiOnReset