dc9ec6856f
1.【需求描述】
L0~L1 支持Trace，提供两种工作模式：在线模式、离线缓存模式， 用于按时间线追踪系统事件，如任务切换、中断、ipc等。
2.【方案描述】
L0:
(1).在内核模块预置静态代码桩
(2).触发桩后，收集系统上下文信息
(3).离线模式则写入内存，用户可通过dump导出；
(4).在线模式通过pipeline对接IDE进行可视化解析和展示；
L1:
新增trace字符设备，位于"/dev/trace",通过对设备节点的read\write\ioctl，实现用户态trace；
BREAKING CHANGE:
1.新增一系列trace的对外API，位于los_trace.h中.
LOS_TRACE_EASY简易插桩
LOS_TRACE标准插桩
LOS_TraceInit配置Trace缓冲区的地址和大小
LOS_TraceStart开启事件记录
LOS_TraceStop停止事件记录
LOS_TraceRecordDump输出Trace缓冲区数据
LOS_TraceRecordGet获取Trace缓冲区的首地址
LOS_TraceReset清除Trace缓冲区中的事件
LOS_TraceEventMaskSet设置事件掩码，仅记录某些模块的事件
LOS_TraceHwiFilterHookReg注册过滤特定中断号事件的钩子函数
Close #I46WA0
Signed-off-by: LiteOS2021 <dinglu@huawei.com>
Change-Id: I6a8e64794c4852f2c2980993a06180e09ec6ee0d
158 lines
4.8 KiB
C
158 lines
4.8 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* 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 LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @defgroup los_err Error handling
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* @ingroup kernel
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*/
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#ifndef _LOS_ERR_H
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#define _LOS_ERR_H
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#include "los_typedef.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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/**
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* @ingroup los_err
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* @brief Define the pointer to the error handling function.
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*
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* @par Description:
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* This API is used to define the pointer to the error handling function.
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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*
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* @param fileName [IN] Log file that stores error information.
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* @param lineNo [IN] Line number of the erroneous line.
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* @param errorNo [IN] Error code.
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* @param paraLen [IN] Length of the input parameter pPara.
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* @param para [IN] User label of the error.
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*
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* @retval None.
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* @par Dependency:
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* <ul><li>los_err.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*/
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typedef VOID (*LOS_ERRORHANDLE_FUNC)(CHAR *fileName,
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UINT32 lineNo,
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UINT32 errorNo,
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UINT32 paraLen,
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VOID *para);
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/**
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* @ingroup los_err
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* @brief Error handling function.
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*
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* @par Description:
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* This API is used to perform different operations according to error types.
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* @attention
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* <ul>
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* <li>None</li>
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* </ul>
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*
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* @param fileName [IN] Log file that stores error information.
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* @param lineNo [IN] Line number of the erroneous line which should not be OS_ERR_MAGIC_WORD.
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* @param errorNo [IN] Error code.
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* @param paraLen [IN] Length of the input parameter pPara.
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* @param para [IN] User label of the error.
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*
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* @retval LOS_OK The error is successfully processed.
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* @par Dependency:
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* <ul><li>los_err.h: the header file that contains the API declaration.</li></ul>
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* @see None
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*/
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extern UINT32 LOS_ErrHandle(CHAR *fileName, UINT32 lineNo,
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UINT32 errorNo, UINT32 paraLen,
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VOID *para);
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/**
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* @ingroup los_err
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* @brief set Error handling function.
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*
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* @param fun [IN] the error handle function.
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*/
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extern VOID LOS_SetErrHandleHook(LOS_ERRORHANDLE_FUNC fun);
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enum LOS_MOUDLE_ID {
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LOS_MOD_SYS = 0x0,
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LOS_MOD_MEM = 0x1,
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LOS_MOD_TSK = 0x2,
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LOS_MOD_SWTMR = 0x3,
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LOS_MOD_TICK = 0x4,
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LOS_MOD_MSG = 0x5,
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LOS_MOD_QUE = 0x6,
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LOS_MOD_SEM = 0x7,
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LOS_MOD_MBOX = 0x8,
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LOS_MOD_HWI = 0x9,
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LOS_MOD_HWWDG = 0xa,
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LOS_MOD_CACHE = 0xb,
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LOS_MOD_HWTMR = 0xc,
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LOS_MOD_MMU = 0xd,
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LOS_MOD_LOG = 0xe,
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LOS_MOD_ERR = 0xf,
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LOS_MOD_EXC = 0x10,
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LOS_MOD_CSTK = 0x11,
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LOS_MOD_MPU = 0x12,
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LOS_MOD_NMHWI = 0x13,
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LOS_MOD_TRACE = 0x14,
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LOS_MOD_KNLSTAT = 0x15,
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LOS_MOD_EVTTIME = 0x16,
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LOS_MOD_THRDCPUP = 0x17,
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LOS_MOD_IPC = 0x18,
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LOS_MOD_STKMON = 0x19,
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LOS_MOD_TIMER = 0x1a,
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LOS_MOD_RESLEAKMON = 0x1b,
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LOS_MOD_EVENT = 0x1c,
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LOS_MOD_MUX = 0X1d,
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LOS_MOD_CPUP = 0x1e,
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LOS_MOD_HOOK = 0x1f,
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LOS_MOD_SHELL = 0x31,
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LOS_MOD_DRIVER = 0x41,
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LOS_MOD_BUTT
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};
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif /* _LOS_ERR_H */
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