CN107797913A - A kind of software analysis System and method for of real-time system - Google Patents
A kind of software analysis System and method for of real-time system Download PDFInfo
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- CN107797913A CN107797913A CN201610806979.0A CN201610806979A CN107797913A CN 107797913 A CN107797913 A CN 107797913A CN 201610806979 A CN201610806979 A CN 201610806979A CN 107797913 A CN107797913 A CN 107797913A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/36—Preventing errors by testing or debugging software
- G06F11/362—Software debugging
- G06F11/3636—Software debugging by tracing the execution of the program
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/36—Preventing errors by testing or debugging software
- G06F11/362—Software debugging
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Abstract
The present invention discloses a kind of software analysis system and method for real-time system, for carrying out task monitors and performance evaluation to the Target Board including processor.The software analysis system includes the monitor being electrically connected with and monitoring analysis module, the output port of Target Board and the port of monitor connect, wherein, the port of monitor includes I/O interfaces and/or CAN interface, the port type of monitor can be monitored analysis module and be arranged to match with Target Board output port, monitor is used for load time stamp, the tracking data of storage Target Board, and uploads tracking data periodically to monitoring analysis module；Monitoring analysis module be used to inputting the software task inventory of Target Board, set monitor ports, generation and insertion can real-time tracking Target Board task tracking module to Target Board software, and analysis Target Board tracking data draw Target Board tasks carrying order and/perform the time.
Description
Technical field
The present invention relates to software trace technique, in particular to a kind of software analysis System and method for of real-time system.
Background technology
In vehicle electric field, complicated for the real-time embedded software system of time slice scheduling, especially function
System, task scheduling order, time and the execution time of worst case software are performed, becoming in software development phase must
Indispensable commissioning content.But traditional IDE (IDE, Integrated Development
Environment) the adjustment method that can be provided, for example interrupt point, monitoring ROM, RAM, dis-assembling, observation register, storehouse
Parsing, and the measurement not comprising calling order, execution time.
Based on this, prior art, the manufacturer of some debugging acids is provided comprising the measurement to calling order, execution time
Function, but need to buy expensive emulator and supporting upper computer software, original microprocessor is replaced using emulator,
Carry out measurement of the software execution sequence tracking with performing the time.Emulator replaces original microprocessor during test,
Generally can not compatible different vendor microprocessor, in the updating and upgrading of a product, it is necessary to again buy it is corresponding to new microprocessor
Emulator, extra human cost and equipment cost can be spent.
It is above-mentioned to replace original microprocessor using emulator, carry out survey of the software execution sequence tracking with performing the time
Amount, on the one hand, emulator is expensive；On the other hand, emulator can not be general on different processor platforms.It is for example, flat
Emulator A corresponding to platform A needs, if changing to platform B, corresponding emulator B, emulator A is needed can not then to reuse.This
Outside, it is necessary to set test environment when platform is changed, then need training and the study of personnel understand and adapts to newly or it is different
Platform, human cost are high.
The content of the invention
For problems of the prior art, it is a primary object of the present invention to provide a kind of software of real-time system point
Analysis system and method, there is provided in the exploitation of real-time system, task, the sequential (task scheduling) of interrupt processing execution, perform
Time, and the execution tracking of time during maximum software load, measuring method.
According to an aspect of the invention, there is provided a kind of software analysis system of real-time system, for including processing
The Target Board of device is monitored and performance evaluation.The software analysis system includes the monitor being electrically connected with and monitoring analysis mould
Block, the output port of Target Board and the port of monitor connect.The port of monitor includes I/O interfaces and/or CAN interface, prison
The port type of visual organ can be monitored analysis module and be arranged to match with Target Board output port.Monitor is used for the load time
The tracking data of stamp, storage Target Board, and tracking data is uploaded periodically to monitoring analysis module.It is defeated to monitor that analysis module is used for
Enter the software task inventory of Target Board, set monitor ports, generation and insertion can real-time tracking Target Board task tracking mould
Block to Target Board software, and the tracking data of analysis Target Board draws Target Board tasks carrying order and/execution time.
As a kind of optional implementation, the monitor included interface module, memory module and for the load time
The clock module of stamp.The port type of the interface module matches in which can change with Target Board output port；Memory module is used for
The tracking data of Target Board is stored, and uploads tracking data periodically to monitoring analysis module；The tracking data includes target
Plate tracking information and the timestamp of loading.
As a kind of optional implementation, it is described monitoring analysis module include task input module, port setup module,
Tracking module, embedded module and analysis module；Wherein, task input module is used for the software task inventory for inputting Target Board.
As a kind of optional implementation, the port setup module is for which kind of interface monitors mesh of configuration monitoring device
Target data, firmware is generated, and interface can be configured to programming firmware into monitor.
As a kind of optional implementation, the port setup module is additionally operable to self-defined CAN message ID and message lattice
Formula.
As a kind of optional implementation, the tracking module to be configured according to interface, it is software task inventory, self-defined
The tracking bag of information generation, and the tracking bag is embedded in Target Board in debugging process；The embedded module is used to provide tracking
The mode of the Target Board software of Module-embedding, the entrance for being included in task add printf corresponding with this task；In task
Outlet add corresponding with this task printf；And the executable file of compiling, loading and operational objective plate.
As a kind of optional implementation, the analysis module is used for the software for according to tracking data, drawing Target Board
Task call order, performs time histrogram, and provide the statistics of each task.
As a kind of optional implementation, the statistics includes each any maximum, minimum execution time, puts down
It is performed both by the time, performs the cycle, and it is one or more in the percentage in whole statistics task.
As a kind of optional implementation, the processor that the tracking module includes Target Board needs the task row completed
Table and definition and processor tracking driver element, wherein the processor I/O mouths of processor tracking driver element including Target Board or
The initialization module of person's CAN interface and to processor I/O mouths or the output module of CAN interface.
According to another aspect of the present invention, there is provided a kind of software analysis method of real-time system, it is applied to above-mentioned
Software analysis system.This method includes：
Input the software task inventory of Target Board；
The port type and self-defined information of configuration monitoring device；
Configured according to interface, software task inventory, self-defined information generation tracking module；
Tracking module is embedded in Target Board software, and compiles, load and the executable file of operational objective plate；
Tracking information is received from Target Board, and absolute timestamp is loaded to tracking information, so as to be formed including tracking information
With the tracking data of timestamp；
Storage includes tracking information and the tracking data of timestamp；
Periodically upload tracking data；And
Analyzed according to tracking data, obtain the software task calling order of Target Board, perform time histrogram, and carry
For the statistics of each task.
In the optional technical scheme of the present invention, by the way that interface of monitor is self-defined, it is possible to achieve software analysis system
It is adapted with different target plate, and avoids emulator in the prior art and be only capable of being adapted to asking for same model or identical producer's product
Topic.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the module map according to the software analysis system of the real-time system of present pre-ferred embodiments；
Fig. 2 is the connection figure according to the software analysis system of the real-time system of present pre-ferred embodiments；
Fig. 3 is to define table according to the interface of monitor of present pre-ferred embodiments；
Fig. 4 is to define coded format table according to the I/O mouths of present pre-ferred embodiments；And
Fig. 5 is the flow chart according to the software analysis method of the real-time system of present pre-ferred embodiments.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the present invention can be mutually combined.
The present invention provides a kind of software analysis System and method for of real-time system, and it provides the exploitation in real-time system
In, sequential (task scheduling) that task, interrupt processing perform performs time, and execution time during maximum software load
Tracking, measuring method.The software monitors system and method are unrelated with microprocessor type on hardware.
As shown in Figures 1 and 2, the software analysis system is used to monitor Target Board 30 and performance evaluation, wherein,
Target Board 30 is product to be measured, i.e. the monitoring of software analysis system and analysis object.In the present embodiment, Target Board 30 is in automobile
All real-time systems with microprocessor, for example, safety air sac controller.
The software analysis system includes monitor 10 and monitoring analysis module 20.The monitor 10 and monitoring analysis mould
Block 20 is electrically connected with, such as is connected by USB interface.The output port of Target Board 30 is connected with the port of monitor 10.Wherein,
The port of monitor 10 includes I/O interfaces and/or CAN interface, and the port type of monitor 10 can be monitored analysis module
20 are arranged to match with the output port of Target Board 10.Monitor 10 is used for load time stamp, the tracking data of storage Target Board 30,
And tracking data is uploaded periodically to monitoring analysis module 20.Monitoring analysis module 20 is used for the software task for inputting Target Board 30
Inventory, set monitor ports, generation and insertion can real-time tracking Target Board task tracking module to Target Board software, and point
The tracking data of analysis Target Board draws Target Board tasks carrying order and/execution time.
Specifically, monitor 10 has storage, timing function, and it includes interface module 12, memory module 14 and clock mould
Block 16.Interface module 12 comprises at least some I/O mouths and at least one CAN interface for linking objective plate 30.Interface module
12 port type matches with the output port of Target Board 30, specifically, in the present embodiment, the port definition of interface module 12
It can change, and generate firmware, can also repeat to write with a brush dipped in Chinese ink, so which kind of output port of matching Target Board 30 determined.
Wherein, interface module 12 can according to debugged Target Board hsrdware requirements between I/O mouths and CAN it is selectively fixed
Justice.Preferably, I/O mouths are selected.Minimum 1, the I/O mouths progress parallel encoding output of most 8 can be selected, user can pass through
Monitoring is selected which the self-defined I/O mouth of analysis module 20.In addition it is also possible to select CAN, user can analyze mould by monitoring
The self-defined CAN message ID of block 20 and message format.In one embodiment, such as from 8 I/O mouths and a standard CAN connect
Mouthful, then the interface module 12 of monitor 10 can be defined as the form as shown in Fig. 3 forms, but the present invention is not limited,
The definition of interface module 12 can be changed according to debugged Target Board hsrdware requirements.
Memory module 14 is used for the tracking data for storing Target Board 30, and uploads tracking data periodically to monitoring analysis mould
Block 20.The tracking data of the Target Board 30 include Target Board tracking information and loading timestamp, clock module 16 be used for pair
Target Board tracking information loads absolute timestamp.
It is, for example, a computer as host computer to monitor analysis module 20, and it provides host computer monitoring analysis software.Prison
Include task input module 21, port setup module 23, tracking module 25, embedded module 27 and analysis module depending on analysis module 20
29.Wherein, task input module 21 is used to inputting the software task inventory of Target Board 30, the task input module 21 be keyboard,
One or more in the input units such as mouse, touch-screen.
Port setup module 23 is used for configuration monitoring device 10 which kind of interface monitors Target Board data, generation firmware, and can
So that interface is configured into programming firmware into monitor 10, port setup module 23 is additionally operable to self-defined CAN message ID and message lattice
Formula.
Tracking module 25 is configures according to interface, the tracking bag of software task inventory, self-defined information generation, and the tracking
Bag is embedded in Target Board 30 in debugging process.In the present embodiment, tracking module 25 be comprising C files, H files C language with
Track bag.
Embedded module 27 is used for the mode for providing the Target Board software of the insertion of tracking module 25, and the entrance for being included in task adds
Enter printf corresponding with this task；Printf corresponding with this task is added in the outlet of task；And compiling, loading
With the executable file of operational objective plate 30.
Analysis module 29 is used for the software task calling order that Target Board 30 is drawn according to tracking data, and it is straight to perform the time
Fang Tu, and the statistics of each task is provided, the statistics includes each any maximum, minimum execution time, average
The time is performed, is performed one or more in the data such as cycle, the percentage in whole statistics task.
Specifically, the software configuration of tracking module 25 defines including following both sides：
1) processor of Target Board 30 needs task list and the definition completed.
In the present embodiment, there is provided digitized task names：Such as task0=0, task1=1, task2=2, task3=
3, taskn=n.
2) processor tracking driver element.
The processor I/O mouths of processor tracking driver element including Target Board 30 or the initialization module of CAN interface and
To processor I/O mouths or the output module of CAN interface.
Wherein, the initialization module person of needing to use of the processor I/O mouths of Target Board 30 or CAN interface is provided to processing
The initialization of device I/O mouths or CAN interface, for the initialization following function in Target Board initial phase, in the present embodiment,
Such as realized by providing function Task_Trace_Init ().
Processor I/O mouths either CAN interface the output module person of needing to use provide processor I/O mouths or CAN are connect
The output operation of mouth, for when Target Board is in the task of execution, data output to be tracked in the entrance of task.The present embodiment
In, such as by providing function Task_Trace_Entry_Print (taskn) realize this function.In addition, processor I/O mouths
Or the output module of CAN interface is additionally operable to, when Target Board is in the task of execution, data output is tracked in the outlet of task.
In the present embodiment, such as by providing function Task_Trace_Exit_Print (taskn) realize this function.
In the present embodiment, illustrated so that the I/O mouths shown in Fig. 4 define coded format table as an example.Such as task0=0, need
0x00 (task entrance) or 0x01 (task outlet) is sent in I/O mouths either CAN message；Such as task1=1, it is necessary to
I/O mouths either send 0x02 (task entrance) or 0x03 (task outlet) in CAN message；Such as task2=2, it is necessary in I/O
Mouth either sends 0x04 (task entrance) or 0x05 (task outlet) in CAN message.
Defined for CAN message, then in the coding input CAN message in Fig. 4, CAN message ID User Defineds, example
A such as CAN can connect multiple Target Boards, then define CAN message ID corresponding to each Target Board respectively.
On the other hand, based on above-mentioned software analysis system, the present invention further provides a kind of software analysis of real-time system
Method.It refer to shown in Fig. 5, Fig. 5 is the software analysis method flow diagram of the real-time system described in the present embodiment.The software point
Analysis method comprises the following steps：
Task input module 21 inputs the software task inventory of Target Board 30；
The configuration monitoring device 10 of port setup module 23 is which kind of interface monitors Target Board data, generates firmware, and by interface
Programming firmware is configured into monitor 10；If necessary, port setup module 23 further self-defined CAN message ID and message lattice
Formula；
Tracking module 25 configures according to interface, software task inventory, self-defined information generation tracking bag；
Tracking module 25 is embedded in Target Board software by embedded module 27, and compile, load and operational objective plate 30 can
Perform file；Tracking module 25 is embedded in Target Board software and further comprises sub-step：At the beginning of initial phase in Target Board
Beginningization tracking module, printf corresponding with this task is added in the entrance of task；And in the outlet of task addition and this
Printf corresponding to task；
Monitor 10 receives tracking information from Target Board 30, and loads absolute timestamp to tracking information, so as to form bag
Include tracking information and the tracking data of timestamp；
Monitor 10 stores the tracking data including tracking information and timestamp；
Periodically upper tracking examination data extremely monitor analysis module 20 to monitor 10；
The analysis module 29 of monitoring analysis module 20 is analyzed according to tracking data, draws the software task of Target Board 30
Calling order, performs time histrogram, and provides the statistics of each task, and the statistics includes each task most
Greatly, it is minimum to perform the time, average performance times, perform one in the data such as cycle, the percentage in whole statistics task
It is or multinomial.
In summary, it can be concluded that the present invention provides a kind of software analysis method of real-time system, it includes following step
Suddenly：
S1：Input the software task inventory of Target Board；
S2：The port type and self-defined information of configuration monitoring device；
S3：Configured according to interface, software task inventory, self-defined information generation tracking module；
S4：Tracking module is embedded in Target Board software, and compiles, load and the executable file of operational objective plate；
S5：Tracking information is received from Target Board, and absolute timestamp is loaded to tracking information, is believed so as to be formed including debugging
The tracking data of breath and timestamp；
S6：Storage includes tracking information and the tracking data of timestamp；
S7：Periodically upload tracking data；And
S8：Analyzed according to tracking data, obtain the software task calling order of Target Board, perform time histrogram,
And provide the statistics of each task.
Relative to prior art, the beneficial effects of the invention are as follows：
1) by the way that the interface of monitor 10 is self-defined, it is possible to achieve software analysis system is fitted with the phase of different target plate 30
Match somebody with somebody, and avoid the problem of emulator in the prior art is only capable of being adapted to same model or identical producer's product；
2) can be with the processing tasks carrying situation of real-time tracking Target Board 30, and acquisition includes performing sequential, performs the time
Data Deng including, improve the efficiency and precision of debugging flow.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of software analysis system of real-time system, for being monitored to the Target Board including processor and performance evaluation,
Characterized in that, the software analysis system includes the monitor being electrically connected with and monitoring analysis module, the output end of Target Board
Mouth is connected with the port of monitor, wherein, the port of monitor includes I/O interfaces and/or CAN interface, the port class of monitor
Type can be monitored analysis module and be arranged to match with Target Board output port, and monitor is used for load time stamp, storage Target Board
Tracking data, and upload tracking data periodically to monitoring analysis module；Monitoring analysis module is used to input the soft of Target Board
Part task list, set monitor ports, generation and insertion can real-time tracking Target Board task tracking module it is soft to Target Board
Part, and the tracking data of analysis Target Board draw Target Board tasks carrying order and/execution time.
2. software analysis system according to claim 1, it is characterised in that the monitor includes interface module, storage
Module and the clock module for load time stamp, the port type of the interface module can change with Target Board output port
Matching；Memory module is used to store the tracking data of Target Board, and uploads tracking data periodically to monitoring analysis module；It is described
Tracking data includes the timestamp of Target Board tracking information and loading.
3. software analysis system according to claim 1 or 2, it is characterised in that the monitoring analysis module includes task
Input module, port setup module, tracking module, embedded module and analysis module；Wherein, task input module is used to input mesh
The software task inventory of target.
4. software analysis system according to claim 3, it is characterised in that the port setup module is used for configuration monitoring
Device is which kind of interface monitors Target Board data, generates firmware, and interface can be configured to programming firmware into monitor.
5. software analysis system according to claim 4, it is characterised in that the port setup module is additionally operable to self-defined
CAN message ID and message format.
6. the software analysis system according to claim 4 or 5, it is characterised in that the tracking module is to be matched somebody with somebody according to interface
Put, the tracking bag of software task inventory, self-defined information generation, and the tracking bag is embedded in Target Board in debugging process；Institute
The mode that embedded module is used to provide the Target Board software of tracking module insertion is stated, the entrance for being included in task adds and this task
Corresponding printf；Printf corresponding with this task is added in the outlet of task；And compiling, loading and operational objective
The executable file of plate.
7. software analysis system according to claim 6, it is characterised in that the analysis module is used for according to tracking number
According to the software task calling for drawing Target Board sequentially, performs time histrogram, and provide the statistics of each task.
8. software analysis system according to claim 7, it is characterised in that the statistics includes each task most
Greatly, it is minimum to perform the time, average performance times, perform one or more in cycle and percentage in whole statistics task
.
9. software analysis system according to claim 6, it is characterised in that the tracking module includes the processing of Target Board
Device needs the task list completed and definition and processor tracking driver element, and wherein processor tracking driver element includes target
The processor I/O mouths of the plate either initialization module of CAN interface and to processor I/O mouths or the output module of CAN interface.
10. a kind of software analysis method of real-time system, it is applied to the software analysis system described in claim 1, its feature
It is, this method includes：
Input the software task inventory of Target Board；
The port type and self-defined information of configuration monitoring device；
Configured according to interface, software task inventory, self-defined information generation tracking module；
Tracking module is embedded in Target Board software, and compiles, load and the executable file of operational objective plate；
From Target Board receive tracking information, and to tracking information load absolute timestamp, so as to formed including tracking information and when
Between the tracking data stabbed；
Storage includes tracking information and the tracking data of timestamp；
Periodically upload tracking data；And
Analyzed according to tracking data, obtain the software task calling order of Target Board, perform time histrogram, and provide every
The statistics of individual task.
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