tests/kernel: verify RUNTIME_NMI at runtime

BOARD ?= qemu_cortex_m3

CONF_FILE = prj.conf

include $(ZEPHYR_BASE)/Makefile.inc

Title: Test to verify the behavior of CONFIG_RUNTIME_NMI at runtime (ARM Only)

Description:

This test verifies the behavior of CONFIG_RUNTIME_NMI at runtime. Only for

ARM Cortex-M targets.

---------------------------------------------------------------------------

Building and Running Project:

This project outputs to the console.  It can be built and executed on QEMU as

follows:

    make qemu

---------------------------------------------------------------------------

Troubleshooting:

Problems caused by out-dated project information can be addressed by

issuing one of the following commands then rebuilding the project:

    make clean          # discard results of previous builds

                        # but keep existing configuration info

or

    make pristine       # discard results of previous builds

                        # and restore pre-defined configuration info

---------------------------------------------------------------------------

Sample Output:

Trigger NMI in 10s: 0 s

Trigger NMI in 10s: 1 s

Trigger NMI in 10s: 2 s

Trigger NMI in 10s: 3 s

Trigger NMI in 10s: 4 s

Trigger NMI in 10s: 5 s

Trigger NMI in 10s: 6 s

Trigger NMI in 10s: 7 s

Trigger NMI in 10s: 8 s

Trigger NMI in 10s: 9 s

NMI received (test_handler_isr)! Rebooting...

...

CONFIG_RUNTIME_NMI=y

ccflags-y += -I${ZEPHYR_BASE}/tests/include

obj-y = main.o

/*

 * Copyright (c) 2016 Linaro Limited

 *

 * 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.

 */

 /**

  * @brief Test to verify the behavior of CONFIG_RUNTIME_NMI at runtime.

  */

#include <zephyr.h>

#include <misc/printk.h>

#include <misc/reboot.h>

#include <tc_util.h>

extern void _NmiHandlerSet(void (*pHandler)(void));

static void nmi_test_isr(void)

{

	printk("NMI received (test_handler_isr)! Rebooting...\n");

	/* ISR triggered correctly: test passed! */

	TC_END_RESULT(TC_PASS);

	TC_END_REPORT(TC_PASS);

}

void main(void)

{

	uint32_t i = 0;

	/* Configure the NMI isr */

	_NmiHandlerSet(nmi_test_isr);

	for (i = 0; i < 10; i++) {

		printk("Trigger NMI in 10s: %d s\n", i);

		k_sleep(1000);

	}

	/* Trigger NMI: Should fire immediately */

	_ScbNmiPend();

}