kernel_liteos_a/kernel/include/los_err.h

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2020-09-08 10:21:39 +08:00
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
* 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.
*/
/**
* @defgroup los_err Error handling
* @ingroup kernel
*/
#ifndef _LOS_ERR_H
#define _LOS_ERR_H
#include "los_typedef.h"
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
/**
* @ingroup los_err
* @brief Define the pointer to the error handling function.
*
* @par Description:
* This API is used to define the pointer to the error handling function.
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @param fileName [IN] Log file that stores error information.
* @param lineNo [IN] Line number of the erroneous line.
* @param errorNo [IN] Error code.
* @param paraLen [IN] Length of the input parameter pPara.
* @param para [IN] User label of the error.
*
* @retval None.
* @par Dependency:
* <ul><li>los_err.h: the header file that contains the API declaration.</li></ul>
* @see None.
*/
typedef VOID (*LOS_ERRORHANDLE_FUNC)(CHAR *fileName,
UINT32 lineNo,
UINT32 errorNo,
UINT32 paraLen,
VOID *para);
/**
* @ingroup los_err
* @brief Error handling function.
*
* @par Description:
* This API is used to perform different operations according to error types.
* @attention
* <ul>
* <li>None</li>
* </ul>
*
* @param fileName [IN] Log file that stores error information.
* @param lineNo [IN] Line number of the erroneous line which should not be OS_ERR_MAGIC_WORD.
* @param errorNo [IN] Error code.
* @param paraLen [IN] Length of the input parameter pPara.
* @param para [IN] User label of the error.
*
* @retval LOS_OK The error is successfully processed.
* @par Dependency:
* <ul><li>los_err.h: the header file that contains the API declaration.</li></ul>
* @see None
*/
extern UINT32 LOS_ErrHandle(CHAR *fileName, UINT32 lineNo,
UINT32 errorNo, UINT32 paraLen,
VOID *para);
/**
* @ingroup los_err
* @brief set Error handling function.
*
* @param fun [IN] the error handle function.
*/
extern VOID LOS_SetErrHandleHook(LOS_ERRORHANDLE_FUNC fun);
enum LOS_MOUDLE_ID {
LOS_MOD_SYS = 0x0,
LOS_MOD_MEM = 0x1,
LOS_MOD_TSK = 0x2,
LOS_MOD_SWTMR = 0x3,
LOS_MOD_TICK = 0x4,
LOS_MOD_MSG = 0x5,
LOS_MOD_QUE = 0x6,
LOS_MOD_SEM = 0x7,
LOS_MOD_MBOX = 0x8,
LOS_MOD_HWI = 0x9,
LOS_MOD_HWWDG = 0xa,
LOS_MOD_CACHE = 0xb,
LOS_MOD_HWTMR = 0xc,
LOS_MOD_MMU = 0xd,
LOS_MOD_LOG = 0xe,
LOS_MOD_ERR = 0xf,
LOS_MOD_EXC = 0x10,
LOS_MOD_CSTK = 0x11,
LOS_MOD_MPU = 0x12,
LOS_MOD_NMHWI = 0x13,
LOS_MOD_TRACE = 0x14,
LOS_MOD_KNLSTAT = 0x15,
LOS_MOD_EVTTIME = 0x16,
LOS_MOD_THRDCPUP = 0x17,
LOS_MOD_IPC = 0x18,
LOS_MOD_STKMON = 0x19,
LOS_MOD_TIMER = 0x1a,
LOS_MOD_RESLEAKMON = 0x1b,
LOS_MOD_EVENT = 0x1c,
LOS_MOD_MUX = 0X1d,
LOS_MOD_CPUP = 0x1e,
LOS_MOD_HOOK = 0x1f,
feat: L0-L1 支持Perf 1.【需求描述】: L0-L1 支持Perf,提供2种模式的配置, 及3大类型的事件配置: 2种模式:计数模式(仅统计事件发生次数)、采样模式(收集上下文如任务ID、pc、backtrace等)。 3种事件类型:CPU硬件事件(cycle、branch、icache、dcache等)、OS软件事件(task switch、mux pend、irq等)、高精度周期事件(cpu clock)。 2.【方案描述】: L0: 基于事件采样原理,以性能事件为基础,当事件发生时,相应的事件计数器溢出发生中断,在中断处理函数中记录事件信息,包括当前的pc、当前运 行的任务ID以及调用栈等信息。 L1: 新增perf字符设备,位于“dev/perf”,通过对设备节点的read\ioctl,实现用户态perf BREAKING CHANGE: 1.新增一系列perf的对外API,位于los_perf.h中. LOS_PerfInit配置采样数据缓冲区 LOS_PerfStart开启Perf采样 LOS_PerfStop停止Perf采样 LOS_PerfConfig配置Perf采样事件 LOS_PerfDataRead读取采样数据 LOS_PerfNotifyHookReg 注册采样数据缓冲区的钩子函数 LOS_PerfFlushHookReg 注册缓冲区刷cache的钩子 2. 用户态新增perf命令 【Usage】: ./perf [start] /[start id] Start perf. ./perf [stop] Stop perf. ./perf [read nBytes] Read nBytes raw data from perf buffer and print out. ./perf [list] List events to be used in -e. ./perf [stat] or [record] <option> <command> -e, event selector. use './perf list' to list available events. -p, event period. -o, perf data output filename. -t, taskId filter(whiltelist), if not set perf will sample all tasks. -s, type of data to sample defined in PerfSampleType los_perf.h. -P, processId filter(whiltelist), if not set perf will sample all processes. -d, whether to prescaler (once every 64 counts), which only take effect on cpu cycle hardware event. Close #I47I9A Signed-off-by: LiteOS2021 <dinglu@huawei.com> Change-Id: Ieb9b7483c85d1495df7c55bc0027f4309dff9814
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LOS_MOD_PERF = 0x20,
LOS_MOD_PM = 0x21,
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LOS_MOD_SHELL = 0x31,
LOS_MOD_DRIVER = 0x41,
LOS_MOD_BUTT
};
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
#endif /* _LOS_ERR_H */