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/*
* Copyright (c) 2014 Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file
* @brief ARM Cortex-M system fatal error handler
*
* This module provides the _SysFatalErrorHandler() routine for Cortex-M
* platforms.
*/
#include <kernel.h>
#include <toolchain.h>
#include <sections.h>
#include <kernel_structs.h>
#include <misc/printk.h>
/**
*
* @brief Fatal error handler
*
* This routine implements the corrective action to be taken when the system
* detects a fatal error.
*
* This sample implementation attempts to abort the current thread and allow
* the system to continue executing, which may permit the system to continue
* functioning with degraded capabilities.
*
* System designers may wish to enhance or substitute this sample
* implementation to take other actions, such as logging error (or debug)
* information to a persistent repository and/or rebooting the system.
*
* @param reason fatal error reason
* @param pEsf pointer to exception stack frame
*
* @return N/A
*/
FUNC_NORETURN void _SysFatalErrorHandler(unsigned int reason,
const NANO_ESF *pEsf)
{
ARG_UNUSED(reason);
ARG_UNUSED(pEsf);
#if !defined(CONFIG_SIMPLE_FATAL_ERROR_HANDLER)
if (k_is_in_isr() || _is_thread_essential()) {
printk("Fatal fault in %s! Spinning...\n",
k_is_in_isr() ? "ISR" : "essential thread");
for (;;)
; /* spin forever */
}
printk("Fatal fault in thread %p! Aborting.\n", _current);
k_thread_abort(_current);
#else
for (;;) {
k_cpu_idle();
}
#endif
CODE_UNREACHABLE;
}
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