125 lines
2.9 KiB
C
125 lines
2.9 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation
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* Copyright (c) 2017 Oticon A/S
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <kernel.h>
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#include <arch/cpu.h>
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#include <kernel_structs.h>
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#include <misc/printk.h>
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#include <inttypes.h>
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#include "posix_soc_if.h"
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const NANO_ESF _default_esf = {
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0xdeadbaad
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};
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/**
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*
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* @brief Kernel fatal error handler
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*
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* This routine is called when a fatal error condition is detected
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*
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* The caller is expected to always provide a usable ESF. In the event that the
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* fatal error does not have a hardware generated ESF, the caller should either
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* create its own or call _Fault instead.
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*
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* @param reason the reason that the handler was called
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* @param pEsf pointer to the exception stack frame
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*
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* @return This function does not return.
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*/
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FUNC_NORETURN void _NanoFatalErrorHandler(unsigned int reason,
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const NANO_ESF *esf)
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{
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#ifdef CONFIG_PRINTK
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switch (reason) {
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case _NANO_ERR_CPU_EXCEPTION:
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case _NANO_ERR_SPURIOUS_INT:
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break;
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case _NANO_ERR_INVALID_TASK_EXIT:
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printk("***** Invalid Exit Software Error! *****\n");
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break;
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case _NANO_ERR_ALLOCATION_FAIL:
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printk("**** Kernel Allocation Failure! ****\n");
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break;
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case _NANO_ERR_KERNEL_OOPS:
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printk("***** Kernel OOPS! *****\n");
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break;
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case _NANO_ERR_KERNEL_PANIC:
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printk("***** Kernel Panic! *****\n");
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break;
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#ifdef CONFIG_STACK_SENTINEL
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case _NANO_ERR_STACK_CHK_FAIL:
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printk("***** Stack overflow *****\n");
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break;
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#endif
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default:
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printk("**** Unknown Fatal Error %u! ****\n", reason);
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break;
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}
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#endif
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void _SysFatalErrorHandler(unsigned int reason,
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const NANO_ESF *pEsf);
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_SysFatalErrorHandler(reason, esf);
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}
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/**
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*
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* @brief Fatal error handler
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*
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* This routine implements the corrective action to be taken when the system
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* detects a fatal error.
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*
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* This sample implementation attempts to abort the current thread and allow
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* the system to continue executing, which may permit the system to continue
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* functioning with degraded capabilities.
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*
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* System designers may wish to enhance or substitute this sample
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* implementation to take other actions, such as logging error (or debug)
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* information to a persistent repository and/or rebooting the system.
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*
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* @param reason the fatal error reason
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* @param pEsf pointer to exception stack frame
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*
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* @return N/A
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*/
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FUNC_NORETURN __weak void _SysFatalErrorHandler(unsigned int reason,
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const NANO_ESF *pEsf)
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{
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ARG_UNUSED(pEsf);
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#ifdef CONFIG_STACK_SENTINEL
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if (reason == _NANO_ERR_STACK_CHK_FAIL) {
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goto hang_system;
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}
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#endif
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if (reason == _NANO_ERR_KERNEL_PANIC) {
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goto hang_system;
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}
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if (k_is_in_isr() || _is_thread_essential()) {
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posix_print_error_and_exit(
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"Fatal fault in %s! Stopping...\n",
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k_is_in_isr() ? "ISR" : "essential thread");
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}
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printk("Fatal fault in thread %p! Aborting.\n", _current);
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k_thread_abort(_current);
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hang_system:
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posix_print_error_and_exit(
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"Stopped in _SysFatalErrorHandler()\n");
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CODE_UNREACHABLE;
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}
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