CN102231128A - Online debugging method and debugging host - Google Patents
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Abstract
The embodiment of the invention discloses an online debugging method and a debugging host and relates to the field of debugging of a processing chip. A visual debugging interface can be provided, the speed of inputting a debugging command is improved, the debugging response speed is low, and the debugging efficiency is improved. The method comprises the following steps of: displaying the visual debugging interface when target equipment is debugged; acquiring a communication parameter for connecting the debugging host with the target equipment, which is set through the visual debugging interface, and connecting the debugging host with the target equipment according to the communication parameter; acquiring a script file of a register of the target equipment, which is configured through the visual debugging interface; downloading the script file into the target equipment; and downloading a code to be debugged into the target equipment and executing debugging of the code to be debugged according to the debugging command after the register of the target equipment is set. The online debugging method is mainly used for the online debugging process based on a reduced instruction set computer (RISC) processor.
Description
Technical field
The present invention relates to process chip debugging field, relate in particular to a kind of on-line debugging method and debug host.
Background technology
EJTAG (Enhanced Joint Test Action Group, improved joint test behavior tissue) is the standard of formulating according to the essential structure and the function expansion of IEEE 1149.1 agreements, it is a hardware/software subsystem, realized the hardware based debugging characteristic of a cover in processor inside, be used for debugging on the supporting pieces.The EJTAG interface utilizes TAP (Test Access Port, the test access port) access mode of JTAG (Joint Test Action Group, joint test behavior tissue), test data is imported into or is spread out of processor core.The attainable function of EJTAG comprises: the register of access processor, access system memory headroom, software/hardware breakpoint, single step/multistep execution etc. are set.EJTAG debug function module is made up of 4 parts: inner assembly expansion, Hardware Breakpoint unit, debugging control register (DCR) and the TAP interface of CPU nuclear.
The debud mode of general OCD (On-Chip Debugging, on-line debugging) is mainly realized by EJTAG, QEMU and being used of these three instruments of GDB.When EJTAG and GDB are used, the EJTAG emulator is connected with target machine, host, at host end operation GDB, all debugging work all is to work under command line mode, make the commissioning staff when debugging, the debug command of input correspondence that be manual makes debugging efficiency low.
Summary of the invention
Embodiments of the invention provide a kind of on-line debugging method and debug host, and a visual debugging interface can be provided, and improve the speed of input debug command, make that the response speed of debugging is slow, have improved debugging efficiency.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of on-line debugging method comprises:
When target device is debugged, with visual debugging interface display;
Obtain the messaging parameter that the debug host by described visual debugging layout setting is connected with described target device, and realize being connected of debug host and described target device according to described messaging parameter;
Obtain script file, comprise the initial value of the described target device register that is provided with by the bottom order in the described script file by the described target device register of described visual debugging interface configurations;
Described script file is downloaded in the described target device, so that described target device is provided with the register of correspondence according to the initial value of the described target device register in the described script file;
After described target device register sets, will treat that debugging code downloads in the described target device, carry out the described debugging for the treatment of debugging code according to debug command.
A kind of debug host comprises:
Display unit is used for when target device is debugged, with visual debugging interface display;
First acquiring unit is used to obtain the messaging parameter that the debug host by described visual debugging layout setting is connected with described target device;
Linkage unit is used for realizing being connected of debug host and described target device according to described messaging parameter;
Second acquisition unit is used to obtain the script file by the described target device register of described visual debugging interface configurations, comprises the initial value of the described target device register that is provided with by the bottom order in the described script file;
First download unit is used for the script file that described second acquisition unit obtains is downloaded to described target device, so that described target device is provided with the register of correspondence according to the initial value of the described target device register in the described script file;
Second download unit is used for after described target device register sets, and will treat that debugging code downloads in the described target device;
Debugging unit is used for carrying out the described debugging for the treatment of debugging code according to debug command.
On-line debugging method and debug host that the embodiment of the invention provides when target device is debugged, provide a visual debugging interface; The user can carry out the setting of the script file of messaging parameter that debug host is connected with described target device and target device register by this visual debugging interface, made things convenient for the input of debugging related commissioning content of debugging person to target device, compare with by command line mode target device being debugged in the prior art, improved the speed of input debug command, make that the response speed of debugging is slow, improved debugging efficiency.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram of on-line debugging method in the embodiment of the invention 1;
Fig. 2 is the composition frame chart of a kind of debug host in the embodiment of the invention 2;
Fig. 3 is the composition frame chart of another kind of debug host in the embodiment of the invention 2;
Fig. 4 is the composition frame chart of another kind of debug host in the embodiment of the invention 2;
Fig. 5 is the composition frame chart of another kind of debug host in the embodiment of the invention 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment 1
The embodiment of the invention provides a kind of on-line debugging method, and as shown in Figure 1, this method comprises:
101, when target device is debugged, with visual debugging interface display.
Need to prove, the embodiment of the invention provides a kind of visual debugging interface for the user debugging operations, and the user can carry out being provided with etc. of script file of messaging parameter that debug host is connected with described target device and target device register by this visual debugging interface.The representation at this visualized operation interface, the embodiment of the invention does not limit, and any visualization interface that can carry out man-machine interaction all belongs to the scope of protection of the invention.
102, obtain the messaging parameter that the debug host by described visual debugging layout setting is connected with described target device, and realize being connected of debug host and described target device according to described messaging parameter.
Wherein, described messaging parameter comprises the information such as IP address, communication type, communication interface of target device.Describedly realize debug host and can adopt following method realization being connected of described target device that according to described messaging parameter this method comprises: according to described messaging parameter the debugging emulation device is set; Realize being connected of described debug host and described target device by described debugging emulation device.Concrete, emulator is set earlier, after emulator sets, the connection of setting up the target device of correlation type in the remote system window in workbench, thus realize being connected of debug host and described target device.
103, obtain script file, comprise the initial value of the described target device register that is provided with by the bottom order in the described script file by the described target device register of described visual debugging interface configurations.
Wherein, need to prove that debugging person can write a script file that is called the target device register file by looking debugging interface, after debugging person has write this script file, just this script file can be downloaded in this target device.
104, described script file is downloaded in the described target device, so that described target device is provided with the register of correspondence according to the initial value of the described target device register in the described script file.
Wherein, before debugging code, need initialization target device processor and register is set, and initialization target device processor and register is set can realizes according to described script file.Wherein, described script file is downloaded in the described target device can realize that this method can comprise: described script file is downloaded in the nonvolatile memory of described emulator by following method; When the described target device of needs initialization, by the EJTAG mouth described script file is copied in the target device by described emulator.Here need to prove, the script file that the target device register is provided with the file correspondence is not directly downloaded in the target device, but be kept at earlier in the middle of the memory device of emulator, only when the described target device of needs initialization, used after the IN order, just the script file of target device register configuration file correspondence can have been copied on the Target Board.
In addition, need to prove that the register that sets on the target device also can be preserved by emulator, the file suffixes of preservation is called .reg.By this register configuration file and method that boot line parameter is set, even do not having under the situation of BootLoader, we also can directly be written into the system that linux kernel starts Target Board with the script file of target device by jtag interface.Concrete: if when not having BootLoader in the described target device, described described script file is downloaded to can adopt following method to realize that this method comprises: described script file is downloaded in the nonvolatile memory of described emulator in the described target device; When the described target device of needs initialization, by the JTAG mouth described script file is copied in the target device by described emulator.
105, after described target device register sets, will treat that debugging code downloads in the described target device, carry out the described debugging for the treatment of debugging code according to debug command.
Wherein, the described execution according to debug command treats that to described the debugging of debugging code can adopt following method to realize that this method comprises:
Obtain the debug command of user by the input of described visual debugging interface; Wherein, when the user imports debug command in visualization interface, the numbering that can in visualization interface, show concrete debug command and this debug command correspondence, debugging person shows according to this, choose corresponding debug command or directly import the numbering of this debug command correspondence, key in order when having avoided the utility command row.
Described debug command is converted to the executable debug command of described target device; Wherein, the operational order that debug host is obtained is the content of debugging person by the input of visual debugging interface, it can not be carried out in target device again, because, can be discerned and carry out by target device in order to make debug command, therefore, before the debug command of will obtain sends to corresponding target device, need just described debug command to be converted to the executable debug command of described target device, the enhanced debugging command conversion that is about to debug host is the debug port order that the CPU of target device endorses the bottom of execution.
By EJTAG described debug command is sent to described target device, so that described target device is carried out the described debugging for the treatment of debugging code according to debug command.
In addition, need to prove, when debugging code is debugged, can realize debug function by the mode of breakpoint or single step, concrete, the processor of target device enters into debugging mode from normal mode, and processor quits work and isolates with the other parts of system at this moment.This moment, the kernel of target device was no longer got finger from ROM, but was inserted into the order register of processor by jtag interface by the instruction that debug host will need processor to carry out; The debugger of debug host can comprise register, storer etc. by the various resources of debug port jtag interface access destination equipment CPU simultaneously, and execution command.By selecting suitable instruction and control the execution of these instructions, the result of execution can be used to detect or the memory content and the processor register of modifying target equipment.Application program continued to carry out after target device withdrawed from debugging mode, up to running into next debugging exception.Repeat above process, promptly realized debug functioies such as breakpoint, single step run.For example, the realization of the debug function of OS Kernel: the debugging with the init () function of the kernel module of certain target device is an example.In the sys_init_module of target device kernel module () function, and a breakpoint is set at mod-＞init () function place; When receive she11 order insmodmodule_name at target device after, when program run will be stopped to the breakpoint place of above-mentioned setting; When the remote of workbench system view refreshes, in the time of can in source code, observing program run and arrived the breakpoint place, can carry out other debugging operations such as single step run.
In the embodiment of the invention, when target device is debugged, provide a visual debugging interface; The user can carry out the setting of the script file of messaging parameter that debug host is connected with described target device and target device register by this visual debugging interface, made things convenient for the input of debugging related commissioning content of debugging person to target device, compare with by command line mode target device being debugged in the prior art, improved the speed of input debug command, make that the response speed of debugging is slow, improved debugging efficiency.
And, in the embodiment of the invention, when the initialization target device, do not need to depend on the operating system of startup, as long as the script file that edits is downloaded in the corresponding target device by emulator, just can realize the initialization of target device by the target device of correspondence according to this script file, widen the application surface of on-line debugging.
Further, in the embodiment of the invention since to the initialization of target device when not having BootLoader, also can by the JTAG mouth described script file be copied in the target device by described emulator, reduced the exploitation of BootLoader application program, saved and exploited natural resources.
Embodiment 2
The embodiment of the invention provides a kind of debug host, and as shown in Figure 2, this debug host comprises: display unit 21, first acquiring unit 22, linkage unit 23, second acquisition unit 24, first download unit 25, second download unit 26, debugging unit 27.
First acquiring unit 22 is used to obtain the messaging parameter that the debug host by described visual debugging layout setting is connected with described target device.Wherein, described messaging parameter comprises the information such as IP address, communication type, communication interface of target device.
Further, as shown in Figure 3, described linkage unit 23 comprises: module 231, link block 232 are set.
Further, as shown in Figure 4, described first download unit 25 comprises: download module 251, emulator 252.
In addition, need to prove that described emulator 252 also is used for, when in described target device, not having BootLoader, and when needing the described target device of initialization, described script file is copied in the target device by the JTAG mouth.
Further, as shown in Figure 5, described debugging unit 27 comprises: acquisition module 271, modular converter 272, sending module 273.
Sending module 273 is used for by EJTAG described debug command being sent to described target device, so that described target device is carried out the described debugging for the treatment of debugging code according to debug command
Need to prove that other of each functional module that debug host comprises that the embodiment of the invention provides are described, the associated description in can reference implementation 1, the embodiment of the invention will repeat no more herein.
In the embodiment of the invention, when target device is debugged, provide a visual debugging interface; The user can carry out the setting of the script file of messaging parameter that debug host is connected with described target device and target device register by this visual debugging interface, made things convenient for the input of debugging related commissioning content of debugging person to target device, compare with by command line mode target device being debugged in the prior art, improved the speed of input debug command, make that the response speed of debugging is slow, improved debugging efficiency.
And, in the embodiment of the invention, when the initialization target device, do not need to depend on the operating system of startup, as long as the script file that edits is downloaded in the corresponding target device by emulator, just can realize the initialization of target device by the target device of correspondence according to this script file, widen the application surface of on-line debugging.
Further, in the embodiment of the invention since to the initialization of target device when not having BootLoader, also can by the JTAG mouth described script file be copied in the target device by described emulator, reduced the exploitation of BootLoader application program, saved and exploited natural resources.
Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better embodiment under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk as computing machine, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. an on-line debugging method is characterized in that, comprising:
When target device is debugged, with visual debugging interface display;
Obtain the messaging parameter that the debug host by described visual debugging layout setting is connected with described target device, and realize being connected of debug host and described target device according to described messaging parameter;
Obtain script file, comprise the initial value of the described target device register that is provided with by the bottom order in the described script file by the described target device register of described visual debugging interface configurations;
Described script file is downloaded in the described target device, so that described target device is provided with the register of correspondence according to the initial value of the described target device register in the described script file;
After described target device register sets, will treat that debugging code downloads in the described target device, carry out the described debugging for the treatment of debugging code according to debug command.
2. on-line debugging method according to claim 1 is characterized in that, describedly realizes that according to described messaging parameter debug host comprised with being connected of described target device:
According to described messaging parameter the debugging emulation device is set;
Realize being connected of described debug host and described target device by described debugging emulation device.
3. on-line debugging method according to claim 2 is characterized in that, described described script file is downloaded in the described target device comprises:
Described script file is downloaded in the nonvolatile memory of described emulator;
When the described target device of needs initialization, by the EJTAG mouth described script file is copied in the target device by described emulator.
4. on-line debugging method according to claim 2 is characterized in that, described described script file is downloaded in the described target device comprises:
Described script file is downloaded in the nonvolatile memory of described emulator;
If when not having BootLoader in the described target device, when the described target device of needs initialization, by the JTAG mouth described script file is copied in the target device by described emulator.
5. according to each described on-line debugging method among the claim 1-4, it is characterized in that described the execution according to debug command treats that to described the debugging of debugging code comprises:
Obtain the debug command of user by the input of described visual debugging interface;
Described debug command is converted to the executable debug command of described target device;
By EJTAG described debug command is sent to described target device, so that described target device is carried out the described debugging for the treatment of debugging code according to debug command.
6. a debug host is characterized in that, comprising:
Display unit is used for when target device is debugged, with visual debugging interface display;
First acquiring unit is used to obtain the messaging parameter that the debug host by described visual debugging layout setting is connected with described target device;
Linkage unit is used for realizing being connected of debug host and described target device according to described messaging parameter;
Second acquisition unit is used to obtain the script file by the described target device register of described visual debugging interface configurations, comprises the initial value of the described target device register that is provided with by the bottom order in the described script file;
First download unit is used for the script file that described second acquisition unit obtains is downloaded to described target device, so that described target device is provided with the register of correspondence according to the initial value of the described target device register in the described script file;
Second download unit is used for after described target device register sets, and will treat that debugging code downloads in the described target device;
Debugging unit is used for carrying out the described debugging for the treatment of debugging code according to debug command.
7. debug host according to claim 6 is characterized in that, described linkage unit comprises:
Module is set, is used for the debugging emulation device being set according to described messaging parameter;
Link block is used for realizing being connected of described debug host and described target device by described debugging emulation device.
8. debug host according to claim 7 is characterized in that, described first download unit comprises:
Download module is used for described script file is downloaded to the nonvolatile memory of described emulator;
Emulator is used for by the EJTAG mouth described script file being copied in the target device when the described target device of needs initialization.
9. debug host according to claim 8 is characterized in that,
Described emulator also is used for, and when not having BootLoader in described target device, and when needing the described target device of initialization, by the JTAG mouth described script file is copied in the target device.
10. according to each described debug host among the claim 6-9, it is characterized in that described debugging unit comprises:
Acquisition module is used to obtain the debug command of user by the input of described visual debugging interface;
Modular converter is used for described debug command is converted to the executable debug command of described target device;
Sending module is used for by EJTAG described debug command being sent to described target device, so that described target device is carried out the described debugging for the treatment of debugging code according to debug command.
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| CN112392688A (en) * | 2020-11-02 | 2021-02-23 | 珠海格力电器股份有限公司 | Unit debugging method, device, system, equipment and storage medium |
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