CN105700992B - A kind of embedded system log recording method and diary record system - Google Patents
A kind of embedded system log recording method and diary record system Download PDFInfo
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- CN105700992B CN105700992B CN201610104856.2A CN201610104856A CN105700992B CN 105700992 B CN105700992 B CN 105700992B CN 201610104856 A CN201610104856 A CN 201610104856A CN 105700992 B CN105700992 B CN 105700992B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
- G06F11/3466—Performance evaluation by tracing or monitoring
- G06F11/3476—Data logging
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3013—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system is an embedded system, i.e. a combination of hardware and software dedicated to perform a certain function in mobile devices, printers, automotive or aircraft systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/1805—Append-only file systems, e.g. using logs or journals to store data
- G06F16/1815—Journaling file systems
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Abstract
The invention discloses a kind of embedded system log recording method and diary record system, change link configuration files, virtual address field is set in bin file, that is str address field, character string information in daily record is put into str address field, the instruction in addition to character string information in daily record is put into iram address field, the data in daily record are put into dram address field；Export the variate-value in the virtual address and daily record of above-mentioned character string information.Character string information is put into str address field by the present invention, and is not take up the ram spaces of embedded system, greatlys save cost；Variate-value in the virtual address and daily record of an output string information of the invention, reduces interface data amount, alleviates the load of system CPU and Peripheral Interface, improve the business execution efficiency of whole system.
Description
Technical field
The present invention relates to a kind of embedded system log recording method and diary record system.
Background technology
In embedded systems, log recording is essential that current existing log recording scheme is as shown in Figure 1.
In embedded systems, when needing output journal, CPU will be combined into one completely by the data content in Iram and Dram
Log information, such as " Invalid Power State：0xFF ", then pass through daily record output interface（The interfaces such as serial ports, network interface）
Journal displaying terminal is transferred to, corresponding daily record is finally shown in journal displaying terminal.
Prior art is to export complete log information by interface, then by taking log information above as an example, embedding
" Invalid Power State will be stored among ram in embedded system：These changeless character string informations of 0x ",
The variate-value FF of output is stored simultaneously, and the storage of variable only needs 1 byte, and corresponding character string information will account for 22
Byte, changeless character string occupy substantial amounts of space, and in embedded systems internal memory space be it is precious and
Limited, inside ram sizes and chip cost especially in asic chip are closely related, so in typically in asic chip
Portion Ram is extremely limited, and generally, the space that these character string informations take account for 20% or so of program gross space, utilize
Extremely limited ram immobilizes storing these and takes the character string information of big quantity space, is said from the angle of cost, non-
It is often unreasonable；When spread out of by external interface simultaneously, these character strings equally can be also transmitted, and can be taken suitable
Peripheral Interface resource and CPU calculation resources, when Peripheral Interface is slower, for example serial ports, substantial amounts of log information would be possible to shadow
The regular traffic of embedded system is rung, reduce the business execution efficiency of whole system, because the function effect of log system is whole
The regular traffic of individual system, this is also unacceptable.These character string informations are the information that some are fixed, in daily record really
Information content be included in print variable it is worthwhile in.
The content of the invention
The technical problems to be solved by the invention are, in view of the shortcomings of the prior art, providing a kind of embedded system daily record note
Recording method and diary record system.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of embedded system log recording side
Method, comprise the following steps：
1）Link configuration files are changed, virtual address is set in the file destination bin file of built-in system software
Section, i.e. str address field, the character string information in daily record is put into str address field, will remove character string information in daily record
Instruction in addition is put into iram address field, and the data in daily record are put into dram address field；
2）Export the variate-value in the virtual address and daily record of above-mentioned character string information.
It is further comprising the steps of：According to step 2）Character string information virtual address and daily record in variate-value, from institute
Character string information corresponding to extraction in str address field is stated, and variate-value and character string information are combined, daily record is completed and shows
Show.The display result of the daily record compared with log recording mechanism display result it is completely the same, it is convenient that daily record is analyzed.
Correspondingly, the invention provides a kind of diary record system, including：
Embedded system：For storing the instruction and data in daily record outside character string information；
Daily record output interface：For the variate-value in the virtual address and daily record of output string information；
Str address field：For storing the character string information in daily record.
The embedded system includes：
Iram address field：For storing the instruction in addition to character string information in daily record；
Dram address field：For storing the data in daily record.
Str address field is a virtual address field, does not have corresponding actual ram among embedded system,
Character string information in each daily record can all have an one-to-one virtual address, and now in iram address fields and dram
Instruction and data in address field is all without comprising the character string information in print log, effectively reducing to iram and dram
Space requirement.
The diary record system also includes journal displaying terminal：For in the virtual address and daily record according to character string information
Variate-value, character string information corresponding to extraction, and variate-value and character string information is combined from the address field of the str
Come, complete journal displaying.The display result of daily record compared with log recording mechanism display result it is completely the same, it is convenient to day
Will is analyzed.
Compared with prior art, the advantageous effect of present invention is that：Character string information is put into str ground by the present invention
In the section of location, and the ram spaces of embedded system are not take up, greatly save cost；The void of an output string information of the invention
Intend the variate-value in address and daily record, reduce interface data amount, alleviate the load of system CPU and Peripheral Interface, improve
The business execution efficiency of whole system.
Brief description of the drawings
Fig. 1 is existing log recording solution principle figure；
Fig. 2 is build targets generation phase schematic diagram of the embodiment of the present invention；
Fig. 3 is journal displaying terminal structure schematic diagram.
Embodiment
The following three phases of the present invention point are realized：
1）The generation of embedded software build targets is set
When generating the target bin file of embedded software, in general pattern is that instruction is put into iram（Instruct Ram）'s
Address field, place data into dram（Data Ram）Address field, iram address field and dram address fields have all actually corresponded to embedding
Ram among embedded system（Random access memory）Address.In the present invention, it is necessary to change link configuration files（It can join
Examine：《Fundamentals of Compiling》, author：Alfred V.Aho、Ravi Sethi、Jeffrey D.Ullman）, by the character string in daily record
Information is specially put among str address field, and str address field is a virtual address field, among embedded system
Not corresponding actual ram, the character string information in each daily record can all have an one-to-one virtual address,
And now the instruction and data in iram address fields and dram address fields all without comprising the character string information in print log,
The space requirement to iram and dram effectively reduced.
2）The daily record output mechanism of embedded system
The present invention is only exported in the virtual address and daily record of character string corresponding to this daily record when carrying out daily record output
Variate-value, for example, before daily record " Invalid Power State：0xFF ", if the virtual address of daily record character string is
0x213451d0, then this daily record only needs to export 5 bytes by daily record output interface in this case：0x21
0x34 0x51 0xd0 0xff, that is, this daily record output is completed, and original daily record needs to complete the output of 24 bytes, greatly
Reduce interface data amount greatly, reduce system CPU and Peripheral Interface load.
3）Journal displaying terminal display mechanism
, it is necessary to be parsed to daily record, above bar after journal displaying terminal receives the daily record that embedded system sends
Exemplified by daily record, the data that journal displaying terminal receives are 0x21 0x34 0x51 0xd0 0xff, and word is obtained from the message
The address 0x213451d0 of string is accorded with, after getting address, is extracted from the str sections of the target bin file of built-in system software
Corresponding character string information：“Invalid Power State：0x ", while variate-value 0xff and character string information are combined
Come, final daily record displayed on the terminals：“Invalid Power State：0xFF ", final journal displaying is completed, the daily record
Display result compared with log mechanism display result it is completely the same, it is convenient that daily record is analyzed.
Such as Fig. 3, journal displaying terminal of the invention includes：
Hardware interface submodule：It is responsible for obtaining the log information that daily record output interface is sent, and the log information is transmitted
Submodule is assembled to parsing；
Parsing assembling submodule：The log information that is sended over for parsing hardware interface submodule, and will parse
Character string virtual address is sent to character extracting sub-module, and receives the character string information obtained from character extracting sub-module, group
Install into complete log information and be sent to daily record output sub-module；
Character extracting sub-module：It is virtual according to this for receiving the character string virtual address for parsing assembling submodule and sending
After address obtains character string information from the file destination bin file of built-in system software, character string information is sent to solution
Analysis assembling submodule；
Daily record output sub-module：For the complete log information for parsing assembling submodule transmission to be output into display eventually
End.
Journal displaying terminal can be that PC, mobile phone etc. support log interface and the hardware system of daily record output, can use
The exploitation of the SDKs such as VC, QT is realized.
Claims (3)
1. a kind of embedded system log recording method, it is characterised in that comprise the following steps：
1）Link configuration files are changed, virtual address field are set in the file destination bin file of built-in system software, i.e.,
Str address field, the character string information in daily record is put into str address field, by daily record in addition to character string information
Instruction be put into iram address field, the data in daily record are put into dram address field；
2）Export the variate-value in the virtual address and daily record of above-mentioned character string information；
3）According to step 2）Character string information virtual address and daily record in variate-value, carried from the address field of the str
Corresponding character string information is taken, and variate-value and character string information are combined, completes journal displaying.
A kind of 2. diary record system, it is characterised in that including：
Embedded system：For setting virtual address field, i.e. str address field in file destination bin file, by daily record
Character string information be put into str address field, the instruction in addition to character string information in daily record is put into iram address
Section, the data in daily record are put into dram address field；
Daily record output interface：For the variate-value in the virtual address and daily record of output string information；
Journal displaying terminal：For the variate-value in the virtual address and daily record according to character string information, from the address of the str
Character string information corresponding to extraction in section, and variate-value and character string information are combined, complete journal displaying.
3. diary record system according to claim 2, it is characterised in that the journal displaying terminal includes：
Hardware interface submodule：It is responsible for obtaining the log information that daily record output interface is sent, and sends the log information to solution
Analysis assembling submodule；
Parsing assembling submodule：The log information sended over for parsing hardware interface submodule, and the character that will be parsed
String virtual address is sent to character extracting sub-module, and receives the character string information obtained from character extracting sub-module, has assembled
Daily record output sub-module is sent into complete log information；
Character extracting sub-module：For receiving the character string virtual address for parsing assembling submodule and sending, according to the virtual address
After obtaining character string information from the file destination bin file of built-in system software, character string information is sent to parsing group
Fill submodule；
Daily record output sub-module：For the complete log information for parsing assembling submodule transmission to be output into display terminal.
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| CN107423204B (en) * | 2017-06-30 | 2020-12-25 | 北京五八信息技术有限公司 | Processing method and device for operation log of application program and terminal |
| CN107515827B (en) * | 2017-08-21 | 2021-07-27 | 湖南国科微电子股份有限公司 | PCIE SSD custom log storage method and device and SSD |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101320348A (en) * | 2008-06-25 | 2008-12-10 | 中兴通讯股份有限公司 | Log function implementing method of embedded system |
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| CN103927251B (en) * | 2014-03-18 | 2017-02-01 | 烽火通信科技股份有限公司 | Log management method for embedded system |
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| CN101320348A (en) * | 2008-06-25 | 2008-12-10 | 中兴通讯股份有限公司 | Log function implementing method of embedded system |
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Application publication date: 20160622 Assignee: Jiangsu Xinsheng Intelligent Technology Co., Ltd. Assignor: GOKE MICROELECTRONICS CO., LTD. Contract record no.: 2018430000021 Denomination of invention: Embedded system log recording method and log recording system Granted publication date: 20171121 License type: Common License Record date: 20181203 |