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54 lines
1.4 KiB
54 lines
1.4 KiB
/* |
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* Copyright (c) 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 Common fault handler for ARCv2 |
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* |
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* Common fault handler for ARCv2 processors. |
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*/ |
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#include <toolchain.h> |
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#include <linker/sections.h> |
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#include <inttypes.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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/* |
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* @brief Fault handler |
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* |
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* This routine is called when fatal error conditions are detected by hardware |
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* and is responsible only for reporting the error. Once reported, it then |
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* invokes the user provided routine _SysFatalErrorHandler() which is |
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* responsible for implementing the error handling policy. |
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* |
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* @return This function does not return. |
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*/ |
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void _Fault(void) |
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{ |
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u32_t vector, code, parameter; |
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u32_t exc_addr = _arc_v2_aux_reg_read(_ARC_V2_EFA); |
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u32_t ecr = _arc_v2_aux_reg_read(_ARC_V2_ECR); |
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vector = _ARC_V2_ECR_VECTOR(ecr); |
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code = _ARC_V2_ECR_CODE(ecr); |
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parameter = _ARC_V2_ECR_PARAMETER(ecr); |
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printk("Exception vector: 0x%x, cause code: 0x%x, parameter 0x%x\n", |
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vector, code, parameter); |
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printk("Address 0x%x\n", exc_addr); |
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#ifdef CONFIG_ARC_STACK_CHECKING |
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/* Vector 6 = EV_ProV. Regardless of code, parameter 2 means stack |
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* check violation |
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*/ |
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if (vector == 6 && parameter == 2) { |
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_NanoFatalErrorHandler(_NANO_ERR_STACK_CHK_FAIL, &_default_esf); |
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} |
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#endif |
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_NanoFatalErrorHandler(_NANO_ERR_HW_EXCEPTION, &_default_esf); |
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}
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