93 lines
3.6 KiB
C
93 lines
3.6 KiB
C
/****************************************************************************
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* arch/arm/src/armv7-m/up_memfault.c
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*
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* Copyright (C) 2011, 2013, 2018 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <assert.h>
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#include <debug.h>
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#include <arch/irq.h>
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#include "up_arch.h"
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#include "nvic.h"
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#include "up_internal.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifdef CONFIG_DEBUG_MEMFAULT
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# define mferr(format, ...) _alert(format, ##__VA_ARGS__)
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# define mfinfo(format, ...) _alert(format, ##__VA_ARGS__)
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#else
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# define mferr(x...)
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# define mfinfo(x...)
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_memfault
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*
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* Description:
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* This is Memory Management Fault exception handler. Normally we get here
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* when the Cortex M3 MPU is enabled and an MPU fault is detected. However,
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* I understand that there are other error conditions that can also generate
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* memory management faults.
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*
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****************************************************************************/
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int up_memfault(int irq, FAR void *context, FAR void *arg)
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{
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/* Dump some memory management fault info */
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(void)up_irq_save();
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_alert("PANIC!!! Memory Management Fault:\n");
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mfinfo(" IRQ: %d context: %p\n", irq, context);
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_alert(" CFAULTS: %08x MMFAR: %08x\n",
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getreg32(NVIC_CFAULTS), getreg32(NVIC_MEMMANAGE_ADDR));
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mfinfo(" BASEPRI: %08x PRIMASK: %08x IPSR: %08x CONTROL: %08x\n",
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getbasepri(), getprimask(), getipsr(), getcontrol());
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PANIC();
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return OK; /* Won't get here */
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}
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