/* * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved. * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this list of * conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * 3. Neither the name of the copyright holder nor the names of its contributors may be used * to endorse or promote products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "los_err.h" /****************************************************************************** 基本概念 错误处理指程序运行错误时,调用错误处理模块的接口函数,上报错误信息,并调用注册的钩子函数 进行特定处理,保存现场以便定位问题。通过错误处理,可以控制和提示程序中的非法输入,防止程序崩溃。 运作机制 错误处理是一种机制,用于处理异常状况。当程序出现错误时,会显示相应的错误码。 此外,如果注册了相应的错误处理函数,则会执行这个函数。 系统中只有一个错误处理的钩子函数。当多次注册钩子函数时,最后一次注册的钩子函数会覆盖前一次注册的函数 ******************************************************************************/ LITE_OS_SEC_BSS STATIC LOS_ERRORHANDLE_FUNC g_errHandleHook = NULL;//错误接管钩子函数 /****************************************************************************** 调用钩子函数,处理错误 fileName:存放错误日志的文件名,系统内部调用时,入参为"os_unspecific_file" lineNo:发生错误的代码行号系统内部调用时,若值为0xa1b2c3f8,表示未传递行号 errnoNo:错误码 paraLen:入参para的长度系统内部调用时,入参为0 para:错误标签系统内部调用时,入参为NULL ******************************************************************************/ LITE_OS_SEC_TEXT_INIT UINT32 LOS_ErrHandle(CHAR *fileName, UINT32 lineNo, UINT32 errorNo, UINT32 paraLen, VOID *para) { if (g_errHandleHook != NULL) { g_errHandleHook(fileName, lineNo, errorNo, paraLen, para); } return LOS_OK; } //设置钩子函数,处理错误 LITE_OS_SEC_TEXT_INIT VOID LOS_SetErrHandleHook(LOS_ERRORHANDLE_FUNC fun) { g_errHandleHook = fun; }