178 lines
4.4 KiB
C
178 lines
4.4 KiB
C
/*
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* Copyright (c) 2013-2014 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Kernel fatal error handler
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*
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* This module provides the _NanoFatalErrorHandler() routine.
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*/
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#include <toolchain.h>
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#include <sections.h>
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#include <kernel.h>
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#include <kernel_structs.h>
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#include <misc/printk.h>
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#include <arch/x86/irq_controller.h>
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#include <arch/x86/segmentation.h>
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#include <exception.h>
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__weak void _debug_fatal_hook(const NANO_ESF *esf) { ARG_UNUSED(esf); }
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/*
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* Define a default ESF for use with _NanoFatalErrorHandler() in the event
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* the caller does not have a NANO_ESF to pass
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*/
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const NANO_ESF _default_esf = {
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0xdeaddead, /* ESP */
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0xdeaddead, /* EBP */
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0xdeaddead, /* EBX */
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0xdeaddead, /* ESI */
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0xdeaddead, /* EDI */
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0xdeaddead, /* EDX */
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0xdeaddead, /* ECX */
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0xdeaddead, /* EAX */
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0xdeaddead, /* error code */
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0xdeaddead, /* EIP */
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0xdeaddead, /* CS */
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0xdeaddead, /* EFLAGS */
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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 by either
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* hardware or software.
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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 use a pointer to the global default ESF <_default_esf>.
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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 *pEsf)
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{
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_debug_fatal_hook(pEsf);
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#ifdef CONFIG_PRINTK
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/* Display diagnostic information about the error */
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switch (reason) {
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case _NANO_ERR_CPU_EXCEPTION:
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break;
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case _NANO_ERR_SPURIOUS_INT: {
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int vector = _irq_controller_isr_vector_get();
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printk("***** Unhandled interrupt vector ");
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if (vector >= 0) {
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printk("%d ", vector);
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}
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printk("*****\n");
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break;
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}
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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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#if defined(CONFIG_STACK_CANARIES)
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case _NANO_ERR_STACK_CHK_FAIL:
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printk("***** Stack Check Fail! *****\n");
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break;
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#endif /* CONFIG_STACK_CANARIES */
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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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default:
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printk("**** Unknown Fatal Error %d! ****\n", reason);
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break;
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}
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printk("Current thread ID = %p\n"
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"Faulting segment:address = 0x%x:0x%x\n"
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"eax: 0x%x, ebx: 0x%x, ecx: 0x%x, edx: 0x%x\n"
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"esi: 0x%x, edi: 0x%x, ebp: 0%x, esp: 0x%x\n"
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"eflags: 0x%x\n",
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k_current_get(),
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pEsf->cs & 0xFFFF, pEsf->eip,
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pEsf->eax, pEsf->ebx, pEsf->ecx, pEsf->edx,
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pEsf->esi, pEsf->edi, pEsf->ebp, pEsf->esp,
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pEsf->eflags);
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#endif /* CONFIG_PRINTK */
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/*
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* Error was fatal to a kernel task or a fiber; invoke the system
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* fatal error handling policy defined for the platform.
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*/
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_SysFatalErrorHandler(reason, pEsf);
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}
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#if CONFIG_EXCEPTION_DEBUG
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static FUNC_NORETURN void generic_exc_handle(unsigned int vector,
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const NANO_ESF *pEsf)
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{
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printk("***** CPU exception %d\n", vector);
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if ((1 << vector) & _EXC_ERROR_CODE_FAULTS) {
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printk("***** Exception code: 0x%x\n", pEsf->errorCode);
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}
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_NanoFatalErrorHandler(_NANO_ERR_CPU_EXCEPTION, pEsf);
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}
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#define _EXC_FUNC(vector) \
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FUNC_NORETURN void handle_exc_##vector(const NANO_ESF *pEsf) \
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{ \
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generic_exc_handle(vector, pEsf); \
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}
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#define _EXC_FUNC_CODE(vector) \
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_EXC_FUNC(vector) \
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_EXCEPTION_CONNECT_CODE(handle_exc_##vector, vector)
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#define _EXC_FUNC_NOCODE(vector) \
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_EXC_FUNC(vector) \
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_EXCEPTION_CONNECT_NOCODE(handle_exc_##vector, vector)
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/* Necessary indirection to ensure 'vector' is expanded before we expand
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* the handle_exc_##vector
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*/
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#define EXC_FUNC_NOCODE(vector) \
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_EXC_FUNC_NOCODE(vector)
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#define EXC_FUNC_CODE(vector) \
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_EXC_FUNC_CODE(vector)
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EXC_FUNC_NOCODE(IV_DIVIDE_ERROR);
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EXC_FUNC_NOCODE(IV_NON_MASKABLE_INTERRUPT);
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EXC_FUNC_NOCODE(IV_OVERFLOW);
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EXC_FUNC_NOCODE(IV_BOUND_RANGE);
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EXC_FUNC_NOCODE(IV_INVALID_OPCODE);
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EXC_FUNC_NOCODE(IV_DEVICE_NOT_AVAILABLE);
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EXC_FUNC_CODE(IV_DOUBLE_FAULT);
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EXC_FUNC_CODE(IV_INVALID_TSS);
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EXC_FUNC_CODE(IV_SEGMENT_NOT_PRESENT);
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EXC_FUNC_CODE(IV_STACK_FAULT);
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EXC_FUNC_CODE(IV_GENERAL_PROTECTION);
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EXC_FUNC_CODE(IV_PAGE_FAULT);
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EXC_FUNC_NOCODE(IV_X87_FPU_FP_ERROR);
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EXC_FUNC_CODE(IV_ALIGNMENT_CHECK);
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EXC_FUNC_NOCODE(IV_MACHINE_CHECK);
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#endif /* CONFIG_EXCEPTION_DEBUG */
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