gustavonihei commented on a change in pull request #2838: URL: https://github.com/apache/incubator-nuttx/pull/2838#discussion_r575469736
########## File path: arch/risc-v/src/rv32im/riscv_exception.c ########## @@ -0,0 +1,96 @@ +/**************************************************************************** + * arch/risc-v/src/rv32im/riscv_exception.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> +#include <stdlib.h> +#include <assert.h> +#include <debug.h> + +#include <nuttx/irq.h> +#include <nuttx/arch.h> +#include <nuttx/board.h> +#include <nuttx/syslog/syslog.h> +#include <arch/rv32im/mcause.h> + +#include "riscv_arch.h" +#include "riscv_internal.h" + +#ifdef CONFIG_DEBUG_INFO +static const char *g_reasons_str[MCAUSE_MAX_EXCEPTION + 1] = +{ + "Instruction address misaligned", + "Instruction access fault", + "Illegal instruction", + "Breakpoint", + "Load address misaligned", + "Load access fault", + "Store/AMO address misaligned", + "Store/AMO access fault", + "Environment call from U-mode", + "Environment call from S-mode", + "Reserved", + "Environment call from M-mode", + "Instruction page fault", + "Load page fault", + "Reserved", + "Store/AMO page fault" +}; +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: riscv_exception + * + * Description: + * This is the exception handler. + * + ****************************************************************************/ + +void riscv_exception(uint32_t mcause, uint32_t *regs) +{ + uint32_t cause = mcause & MCAUSE_INTERRUPT_MASK; + +#ifdef CONFIG_DEBUG_INFO + if (mcause > MCAUSE_MAX_EXCEPTION) + { + _alert("EXCEPTION: Unknown. MCAUSE: %08" PRIx32 "\n", cause); + } + else + { + _alert("EXCEPTION: %s. MCAUSE: %08" PRIx32 "\n", + g_reasons_str[cause], cause); + } +#endif + + _alert("PANIC!!! Execption = %08" PRIx32 "\n", cause); Review comment: ```suggestion _alert("PANIC!!! Exception = %08" PRIx32 "\n", cause); ``` Typo in **Exception** ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
