2aa85fd17e
Summary The naming standard at https://cwiki.apache.org/confluence/display/NUTTX/Naming+FAQ requires that all MCU-private functions begin with the name of the architecture, not up_. This PR addresses only these name changes for the ARM-private functions prototyped in arm_internal.h This change to the files only modifies the name of called functions. nxstyle fixes were made for all core architecture files. However, there are well over 5000 additional complaints from MCU drivers and board logic that are unrelated to to this change but were affected by the name change. It is not humanly possible to fix all of these. I ask that this change be treated like other cosmetic changes that we have done which do not require full nxstyle compliance. Impact There should be not impact of this change (other that one step toward more consistent naming). Testing stm32f4discovery:netnsh
137 lines
4.4 KiB
C
Executable File
137 lines
4.4 KiB
C
Executable File
/****************************************************************************
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* arch/arm/src/armv8-m/arm_hardfault.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 <stdint.h>
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#include <string.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/userspace.h>
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#include <arch/irq.h>
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#include "arm_arch.h"
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#include "nvic.h"
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#include "arm_internal.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* If CONFIG_ARMV8M_USEBASEPRI=n, then debug output from this file may
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* interfere with context switching!
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*/
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#ifdef CONFIG_DEBUG_HARDFAULT_ALERT
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# define hfalert(format, ...) _alert(format, ##__VA_ARGS__)
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#else
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# define hfalert(x...)
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#endif
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#ifdef CONFIG_DEBUG_HARDFAULT_INFO
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# define hfinfo(format, ...) _info(format, ##__VA_ARGS__)
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#else
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# define hfinfo(x...)
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#endif
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#define INSN_SVC0 0xdf00 /* insn: svc 0 */
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: arm_hardfault
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*
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* Description:
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* This is Hard Fault exception handler. It also catches SVC call
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* exceptions that are performed in bad contexts.
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*
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****************************************************************************/
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int arm_hardfault(int irq, FAR void *context, FAR void *arg)
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{
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/* Get the value of the program counter where the fault occurred */
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#ifndef CONFIG_ARMV8M_USEBASEPRI
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uint32_t *regs = (uint32_t *)context;
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uint16_t *pc = (uint16_t *)regs[REG_PC] - 1;
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/* Check if the pc lies in known FLASH memory.
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* REVISIT: What if the PC lies in "unknown" external memory? Best
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* use the BASEPRI register if you have external memory.
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*/
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#ifdef CONFIG_BUILD_PROTECTED
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/* In the kernel build, SVCalls are expected in either the base, kernel
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* FLASH region or in the user FLASH region.
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*/
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if (((uintptr_t)pc >= (uintptr_t)_START_TEXT &&
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(uintptr_t)pc < (uintptr_t)_END_TEXT) ||
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((uintptr_t)pc >= (uintptr_t)USERSPACE->us_textstart &&
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(uintptr_t)pc < (uintptr_t)USERSPACE->us_textend))
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#else
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/* SVCalls are expected only from the base, kernel FLASH region */
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if ((uintptr_t)pc >= (uintptr_t)_START_TEXT &&
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(uintptr_t)pc < (uintptr_t)_END_TEXT)
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#endif
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{
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/* Fetch the instruction that caused the Hard fault */
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uint16_t insn = *pc;
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hfinfo(" PC: %p INSN: %04x\n", pc, insn);
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/* If this was the instruction 'svc 0', then forward processing
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* to the SVCall handler
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*/
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if (insn == INSN_SVC0)
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{
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hfinfo("Forward SVCall\n");
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return arm_svcall(irq, context, arg);
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}
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}
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#endif
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/* Dump some hard fault info */
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hfalert("Hard Fault:\n");
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hfalert(" IRQ: %d regs: %p\n", irq, context);
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hfalert(" BASEPRI: %08x PRIMASK: %08x IPSR: %08x CONTROL: %08x\n",
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getbasepri(), getprimask(), getipsr(), getcontrol());
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hfalert(" CFAULTS: %08x HFAULTS: %08x DFAULTS: %08x BFAULTADDR: %08x "
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"AFAULTS: %08x\n",
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getreg32(NVIC_CFAULTS), getreg32(NVIC_HFAULTS),
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getreg32(NVIC_DFAULTS), getreg32(NVIC_BFAULT_ADDR),
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getreg32(NVIC_AFAULTS));
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up_irq_save();
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_alert("PANIC!!! Hard fault: %08x\n", getreg32(NVIC_HFAULTS));
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PANIC();
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return OK;
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}
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