CN1667585A - A digit signal processor software debugging information output method - Google Patents
A digit signal processor software debugging information output method Download PDFInfo
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- CN1667585A CN1667585A CN 200410004678 CN200410004678A CN1667585A CN 1667585 A CN1667585 A CN 1667585A CN 200410004678 CN200410004678 CN 200410004678 CN 200410004678 A CN200410004678 A CN 200410004678A CN 1667585 A CN1667585 A CN 1667585A
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Abstract
This invention discloses a digital signal processor (DSP) software debugging information output method, which comprises the following steps: establishing each debugging information object, opposite information output buffer and spring condition of output debugging information by the DSP program; translating load document; searching load document and saving debugging information character string according to string name to obtain parameter used in the debugging information by CPU; outputting the same type debugging information to the opposite debugging information output buffer by DSP; judging whether the trigger conditions are satisfied, it satisfied, then outputting debugging information to CPU through interface between CPU and DSP; otherwise, going back; CPU analyzing the debugging output information.
Description
Technical field
The present invention relates to digital signal processor (DSP) technology, particularly a kind of dsp software Debugging message output intent.
Background technology
Owing to possess powerful processing power, DSP generally is applied to the place that high speed signal is handled, and has especially obtained to use very widely at communication field.Because the real-time and the handling property of dsp system had higher requirement, in the design of dsp system, mainly lay particular emphasis on data throughput capabilities and the arithmetic speed of considering DSP at present, and for the man-machine interaction of dsp system and debugging method pays close attention to usually inadequately.
In the design of dsp system, debugging need be exported Debugging message during dsp software, also needs to export Debugging message for orientation problem exactly when dsp software is unusual.Dsp software Debugging message output intent common in the prior art is: at first load dsp software by emulation tool, by employed emulation tool Debugging message is outputed to debug host then, export under the integrated debugging environment at last.Because it is more and more huger that DSP goes up application program; particularly the distributed processing mode that extensively adopts in mobile communcations system tends to adopt multi-disc DSP on a Target Board; and the standard of DSP emulation tool can only realize that substantially serial loads; so application simulation instrument output Debugging message can reduce the debugging efficiency of dsp software; and since at present the DSP emulation tool that provides of each producer for the debugging and the imperfection of some complicated real-time tasks; using this method still needs directly to export Debugging message usually and carries out positioning problems, thereby causes the inconvenience to the dsp software debugging.Simultaneously, because this method by DSP emulation tool output Debugging message is to adopt emulation tool to load dsp software, and the actual application environment of dsp software is to be responsible for carrying out the backstage by CPU to load basically, so must revise corresponding environment configurations when loading dsp software, can't test normal DSP loading flow process thereby cause by the DSP emulation tool.
Directly Debugging message is outputed to CPU by the host interface between DSP and the main frame (HPI) in addition in the prior art, CPU directly outputs to the Debugging message output intent of debug host with Debugging message by the debugging passage of CPU again, and wherein the HPI interface comprises the communications protocol of HPI mailbox and CPU and DSP.
In some complicated application places, can be with the interconnected interconnected array of DSP of forming of DSP.Fig. 1 is for utilizing the debugging mode figure of HPI interface in the prior art.As shown in Figure 1, DSP uses on the plate CPU and the interconnected array of DSP, and wherein the interconnected array of DSP is connected with CPU by the HPI interface.The output Debugging message needs earlier Debugging message is formatd when arriving debug host, prior art is generally by calling printfs such as Printf with the Debugging message string formatization, mail to the HPI mailbox of HPI interface then in the mode of message bag, CPU reads the HPI mailbox and calls printf again and export by the debugging passage of CPU to obtain Debugging message message bag.
Fig. 2 is for utilizing HPI interface output Debugging message output process flow diagram in the prior art.As shown in Figure 2, may further comprise the steps:
Step 201:CPU loads the DSP program, begins to debug flow process;
Step 202:DSP program format Debugging message character string, and the Debugging message character string group after will formaing is bundled into debug information packets, then debug information packets issued the HPI mailbox;
Step 203:CPU reads the debugging passage printout that the HPI mailbox obtains debug information packets and passes through CPU.
This HPI of utilization interface is directly exported Debugging message to CPU in the prior art, CPU again with the debugging passage of Debugging message by CPU directly the mode of output owing to be not to utilize emulation tool to load the DSP program, so can avoid by the emulation tool output problem that Debugging message caused, but since the HPI interface be all DSP public having and the shared resource of limited bandwidth, and the length of Debugging message character string is not fixed and may be very long, and every Debugging message is all formed a debug information packets output and can be caused the expense in packet header very big in the prior art, so the debug information packets of being made up of the Debugging message character string in a large number by the output of HPI interface can take a large amount of HPI bandwidth.
Simultaneously, need on DSP, format the Debugging message character string before the output Debugging message in the prior art, and the time of formaing the Debugging message character string on DSP is relevant with the length of debugging information character string, easily need the cycles up to a hundred, increased the time of on DSP, handling Debugging message, thus the load that has strengthened DSP.Especially, if when DSP is in abnormal conditions for a certain reason, because one can cause producing a series of unusual usually unusually, and each unusually all can have Debugging message output usually, and then the processing of DSP regular traffic is caused very big impact.
Mode common in the prior art also has by Debugging message is outputed to serial port chip by external memory interface, outputs to debug terminal again by serial port chip.Because just simple employing serial port chip reports debug host with Debugging message, therefore Debugging message can only be that DSP initiatively exports, and take place when unusual when the DSP program, DSP often can't export normally, therefore the field data in the time of can't obtaining the DSP program exception, and these field datas are absolutely necessary for the problem of locating the DSP program under a lot of situation.Simultaneously, owing to be by serial port chip Debugging message to be reported debug host, the Debugging message output speed can be subjected to the influence of serial port chip speed.
Summary of the invention
In view of this, fundamental purpose of the present invention is to propose a kind of dsp software Debugging message output intent, to save the bandwidth that the HPI transmission is consumed.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of dsp software Debugging message output intent may further comprise the steps:
Create in A, the DSP program and be no less than 1 type Debugging message object and be no less than 1 Debugging message impact damper and Debugging message outputs to the trigger condition of CPU, wherein every kind of Debugging message object corresponding at least one Debugging message impact damper and every kind of Debugging message object corresponding to a kind of Debugging message;
B, DSP compiler compile described DSP program and generate load document, described load document comprises the Debugging message string segments at least, the content that CPU retrieves described load document according to the section name and preserves the Debugging message string segments is to CPU, and acquisition Debugging message string segments is mapped to the physical address of DSP, the content of Debugging message string segments is kept at the address of CPU;
C, DSP program output to the pairing Debugging message of Debugging message object of same type and the corresponding Debugging message impact damper of this Debugging message object type;
D, judge that whether the trigger condition that Debugging message outputs to CPU satisfies, if satisfied by host interface (HPI) output Debugging message to CPU, CPU calculates with the corresponding Debugging message character string of Debugging message and is kept at the physical address of CPU and exports the Debugging message character string, if do not satisfy then return step D.
Described Debugging message object is error message object, DSP program debug information object or function operation trace information object.
The physical address that the corresponding Debugging message character string of described calculating of step D and Debugging message is kept at CPU is mapped to physical start address among the DSP and deducts the Debugging message string segments and be mapped to physical start address among the DSP and add the start address that the content of Debugging message string segments is kept at CPU for calculating this Debugging message character string in the Debugging message string segments.
Step B further resolves retrieving files and obtains the length that DSP goes up all Debugging message impact damper start addresses, last all the Debugging message impact dampers of DSP.
The further timing that CPU and DSP program is set in the steps A task of shaking hands, when mission failure was shaken hands in described timing, CPU initiatively obtained Debugging message from the Debugging message impact damper.
The described trigger condition of step D is regularly querying triggering condition, active trigger condition or maximum-delay output trigger condition.
By above technical scheme as can be seen, the Debugging message that DSP outputs to CPU among the present invention all comprises the physical address that is mapped to DSP with the corresponding Debugging message character string of Debugging message, and the length of Debugging message and Debugging message string length are irrelevant, Debugging message itself does not comprise the Debugging message character string, by being mapped to the physical address of DSP and resolving the Debugging message parameters needed with the corresponding Debugging message character string of Debugging message, CPU just can obtain and the pairing Debugging message character string of Debugging message, therefore the length of the Debugging message that is transmitted among the present invention is far smaller than the Debugging message string length, simultaneously, the present invention organizes bag output simultaneously when satisfying certain trigger condition behind many Debugging message buffer memorys in the Debugging message output buffer, rather than export every Debugging message and will export a message bag, therefore the present invention also greatly reduces the expense in packet header, has greatly reduced the bandwidth that the transmission of HPI interface is consumed so use the present invention.
The Debugging message that the DSP program just will comprise the address of Debugging message character string among the present invention outputs to the Debugging message output state, format the Debugging message character string on the DSP and not be used in, and the form of Debugging message of the present invention is fixed, Debugging message itself does not comprise the Debugging message character string, thereby the time that makes DSP handle Debugging message dwindles greatly, so the present invention has significantly reduced the load of DSP.
Simultaneously, the present invention's operation information circulation that some are important in the DSP program operation process is kept in the track Debugging message output buffer, when appearance in the DSP program operation process is unusual, if this unusual DSP program can detect, the DSP program can be utilized initiatively, and triggering mode outputs to CPU with Debugging message group bag, if and this wrong DSP program can't detect, CPU can initiatively obtain the content and the real time parsing and the output successively of Debugging message output buffer, thereby application the present invention has realized the on-the site analysis to the DSP fault, and then provides strong help for locating the DSP fault rapidly.
The present invention loads the DSP program by CPU rather than emulation tool, include abundant Debugging message in the DSP program, export Debugging message by CPU in real time, thereby be very easy to the debugging under many DSP environment, improve the efficient of DSP program debug, and do not needed to revise environment configurations.Simultaneously, the present invention is by HPI interface rather than serial ports output Debugging message, so the Debugging message output speed is not subjected to the restriction of serial port chip speed.
Description of drawings
Fig. 1 is for utilizing the debugging mode figure of HPI interface in the prior art.
Fig. 2 is for utilizing HPI interface output Debugging message process flow diagram in the prior art.
Fig. 3 is the load document form synoptic diagram of one embodiment of the invention.
Fig. 4 is the Debugging message form synoptic diagram of one embodiment of the invention.
Fig. 5 is for utilizing HPI interface output Debugging message process flow diagram in one embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention express clearlyer, the present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Main thought of the present invention is at first to create various types of Debugging message objects in the DSP program, the trigger condition of Debugging message output buffer and output Debugging message, each Debugging message object correspondence Debugging message output buffer independently wherein, and the size of each Debugging message output buffer can be regulated, CPU resolves the DSP load document then, the content of Debugging message string segments is kept at the storage space of CPU, and obtain to resolve the Debugging message parameters needed, after loading, the DSP program when the DSP program run, Debugging message outputed to corresponding Debugging message output buffer, and when satisfying certain trigger condition, by the HPI interface Debugging message in the Debugging message output buffer is outputed to CPU again, wherein include address in the Debugging message with the corresponding Debugging message character string of Debugging message, just this Debugging message character string is mapped to the physical address of DSP, and the Debugging message that last CPU real time parsing obtains is also exported by the debugging passage of CPU.
In communication system, extensively adopted a kind of DSP of series, this series DSP compiling link DSP program and generate load document when program compiler, the form of the load document that is generated is common object file layout (COFF).After in the DSP program, setting up dissimilar Debugging message objects, the DSP development environment when program compiler, will in load document, produce and the DSP program in the corresponding compiling section of the Debugging message object set up.
When loading the DSP program, need load respectively according to the physical address of each section, and the Debugging message string segments does not have physical address, so before loading the DSP program, need debugging information character string section is carried out map addresses.After compiling is finished, finish Debugging message string segments map addresses by linker.
Fig. 3 is for utilizing HPI interface output Debugging message process flow diagram in one embodiment of the invention.As shown in Figure 3, may further comprise the steps:
Create the trigger condition of various types of Debugging message objects and Debugging message output buffer and Debugging message output in the step 301:DSP program, wherein each Debugging message object is corresponding to Debugging message output buffer independently separately;
Step 302:DSP compiler compiling DSP program generates the DSP load document, and wherein the DSP load document comprises Debugging message object section and const section at least;
Fig. 4 is the load document form synoptic diagram of the COFF form of one embodiment of the invention.As shown in Figure 4, coff file comprises file header, optional file head, paragraph header, raw data, relocates information, line number inlet, symbol table and character list.When program compiler, compiler all is assigned to Debugging message character strings all in the program in the const section of an appointment, and the corresponding compiling section of the Debugging message object of being set up in compiling generation and the DSP program.
Step 303:CPU loads the DSP program and retrieves the load document that generates according to the section name, and acquisition Debugging message string segments is mapped to the physical address of DSP, the content of Debugging message string segments is kept at the address of CPU;
CPU at first retrieved whole DSP load document according to the section name and finds const section and each Debugging message object section before loading the DSP program, can obtain the physical address and the const section raw data address of const section from the const section, wherein the physical address of const section is mapped to physical address on the DSP for the const section, and const section raw data address is the address of const section in load document.When the DSP program loaded, CPU can obtain the address of const section in load document by const section raw data address, thereby CPU can obtain the information of const section.Const segment information that the CPU storage obtains and record const segment information are kept at the start address of CPU.
Step 304:DSP output Debugging message is to corresponding Debugging message output buffer;
Remain with whole Debugging message character strings in the load document, thus output during Debugging message in the DSP program operation process, Debugging message can only keep sequence number, tuning parameter and with the start address of the pairing Debugging message character string of Debugging message.Wherein the sequence number in the Debugging message is to be used for determining allowing the user know when sending information dropout in process of transmitting, the value of sequence number adds 1 when every data generate, tuning parameter in the Debugging message mostly is 2 most, when not having tuning parameter, the value of tuning parameter position replaces with 0 in the Debugging message form.
Figure 5 shows that the Debugging message form synoptic diagram of one embodiment of the invention.As shown in Figure 5, Debugging message comprises sequence number, tuning parameter and Debugging message character string pointer, can determine to be mapped to the pairing Debugging message character string of Debugging message in the const section physical start address of DSP according to Debugging message character string pointer.Tuning parameter in the Debugging message is 2, so taking up room of every Debugging message can be 4 words.
Step 305: judge whether to satisfy the trigger condition that Debugging message outputs to CPU,, otherwise return step 304 if then export Debugging message to CPU by the HPI interface;
Debugging message outputs to the triggering mode of CPU can be for timing querying triggering mode, initiatively export triggering mode or maximum-delay triggering mode.
Regularly inquiry mode is for inquiring about specific Debugging message output buffer at set intervals, if the debugging message bar number in the Debugging message output buffer has surpassed certain thresholding, then, then the Debugging message pointer is resetted with Debugging message group bags all in the Debugging message impact damper and by the output of HPI interface.
Initiatively export triggering mode and be mainly used in some specific demand place, for example in the dsp operation process, some important information circulations such as function track are outputed in the trace information output buffer, in case meet some requirements, then the message block bag in the whole Debugging message output buffer is outputed to CPU to make things convenient for orientation problem.
The maximum-delay way of output is that a Debugging message output maximum-delay thresholding is set, in case there is Debugging message to surpass this thresholding the time delay in the Debugging message output buffer, then exports Debugging message to CPU, to guarantee the real-time of Debugging message output.
Step 306:CPU real time parsing Debugging message and output;
In order to export Debugging message, CPU need obtain to be kept at the address of the Debugging message character string corresponding with Debugging message among the CPU.The start address of Debugging message character string in CPU deducts the physical start address that the const section is mapped among the DSP and adds the start address of const information in CPU that is kept among the CPU for being mapped to physical start address among the DSP with the pairing Debugging message character string of Debugging message.After having obtained the address of the Debugging message character string corresponding with Debugging message, CPU just can print output to corresponding Debugging message character string.
In the above process, in order to obtain the localization of fault information of DSP program when the DSP program exception, when step 303 searching load document, CPU also can go up all Debugging message buffer lengths from each last all Debugging message impact damper start address of Debugging message object section acquisition DSP and DSP.The timing that can in CPU and DSP program, the set up a low priority in advance respectively task of shaking hands, can be detected unusual if the DSP program in the DSP program run, occurs, the DSP program will send to debug host in real time in the running state of programs before unusual and some important parameters and observe, the unusual efficient in location during with raising DSP program run.When the DSP program occurring when can't be detected unusual, CPU can not detect shaking hands of DSP program this moment, the start address of each Debugging message impact damper that CPU can pass through to be obtained and length directly read the information of corresponding Debugging message impact damper and resolve output from DSP, thereby provide strong help for locating the DSP deadlock fast, be very easy to analysis the DSP fault in-situ.
In the above process, the described Debugging message object of step 301 can be divided into error message object or DSP program debug information object or function operation trace information object according to the effect difference, and the size of Debugging message impact damper can correspondingly be regulated.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1, a kind of digital signal processor (DSP) software debug information output intent is characterized in that, may further comprise the steps:
Create in A, the DSP program and be no less than 1 type Debugging message object and be no less than 1 Debugging message impact damper and Debugging message outputs to the trigger condition of CPU, wherein every kind of Debugging message object corresponding at least one Debugging message impact damper and every kind of Debugging message object corresponding to a kind of Debugging message;
B, DSP compiler compile described DSP program and generate load document, described load document comprises the Debugging message string segments at least, the content that CPU retrieves described load document according to the section name and preserves the Debugging message string segments is to CPU, and acquisition Debugging message string segments is mapped to the physical address of DSP, the content of Debugging message string segments is kept at the address of CPU;
C, DSP program output to the pairing Debugging message of Debugging message object of same type and the corresponding Debugging message impact damper of this Debugging message object type;
D, judge that whether the trigger condition that Debugging message outputs to CPU satisfies, if satisfied by host interface (HPI) output Debugging message to CPU, CPU calculates with the corresponding Debugging message character string of Debugging message and is kept at the physical address of CPU and exports the Debugging message character string, if do not satisfy then return step D.
2, dsp software Debugging message output intent according to claim 1 is characterized in that, described Debugging message object is error message object, DSP program debug information object or function operation trace information object.
3, dsp software Debugging message output intent according to claim 1, it is characterized in that the physical address that the corresponding Debugging message character string of described calculating of step D and Debugging message is kept at CPU is mapped to physical start address among the DSP and deducts the Debugging message string segments and be mapped to physical start address among the DSP and add the start address that the content of Debugging message string segments is kept at CPU for calculating this Debugging message character string in the Debugging message string segments.
4, dsp software Debugging message output intent according to claim 1 is characterized in that, step B further resolves retrieving files and obtains the length that DSP goes up all Debugging message impact damper start addresses, last all the Debugging message impact dampers of DSP.
5, dsp software Debugging message output intent according to claim 4, it is characterized in that, the further timing that CPU and DSP program is set in the steps A task of shaking hands, when mission failure was shaken hands in described timing, CPU initiatively obtained Debugging message from the Debugging message impact damper.
6, dsp software Debugging message output intent according to claim 1 is characterized in that, the described trigger condition of step D is regularly querying triggering condition, active trigger condition or maximum-delay output trigger condition.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546268B (en) * | 2008-03-25 | 2012-03-14 | 大唐移动通信设备有限公司 | Method for loading executable file for digital signal processor and device thereof |
| CN102103527B (en) * | 2009-12-21 | 2012-12-12 | 上海贝尔股份有限公司 | Multi-kernel DSP (digital signal processing) circuit with error processing device and error processing method |
| CN102073581B (en) * | 2009-11-23 | 2015-09-23 | 新奥特（北京）视频技术有限公司 | A kind of output intent of Debugging message and system |
| CN106453154A (en) * | 2016-09-14 | 2017-02-22 | 盛科网络（苏州）有限公司 | Real-time debugging method and system based on multicast replicated message |
| CN106776278A (en) * | 2016-11-23 | 2017-05-31 | 福州瑞芯微电子股份有限公司 | A kind of DSP adjustment methods and device based on Duo-Core Architecture |
| CN108255692A (en) * | 2016-12-28 | 2018-07-06 | 新华三技术有限公司 | Information processing method and device |
| CN108388510A (en) * | 2018-02-09 | 2018-08-10 | 福建升腾资讯有限公司 | A kind of method and computer equipment controlling Debugging message output by storage configuration |
| TWI641247B (en) * | 2017-03-23 | 2018-11-11 | 瑞軒科技股份有限公司 | Method for processing messages |
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| JPH07225750A (en) * | 1994-02-14 | 1995-08-22 | Matsushita Electric Ind Co Ltd | Digital signal processor |
| US5913052A (en) * | 1997-01-24 | 1999-06-15 | Lucent Technologies Inc. | System and method for debugging digital signal processor software with an architectural view and general purpose computer employing the same |
| KR100233722B1 (en) * | 1997-02-20 | 1999-12-01 | 윤종용 | Apparatus for testing a digital signal process part of digital video disk player |
| DE60021092T2 (en) * | 2000-11-21 | 2006-05-18 | Siemens Mobile Communications S.P.A. | Device and method for real-time error recovery of source programs, in particular for DSP |
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| CN101546268B (en) * | 2008-03-25 | 2012-03-14 | 大唐移动通信设备有限公司 | Method for loading executable file for digital signal processor and device thereof |
| CN102073581B (en) * | 2009-11-23 | 2015-09-23 | 新奥特（北京）视频技术有限公司 | A kind of output intent of Debugging message and system |
| CN102103527B (en) * | 2009-12-21 | 2012-12-12 | 上海贝尔股份有限公司 | Multi-kernel DSP (digital signal processing) circuit with error processing device and error processing method |
| CN106453154A (en) * | 2016-09-14 | 2017-02-22 | 盛科网络（苏州）有限公司 | Real-time debugging method and system based on multicast replicated message |
| CN106453154B (en) * | 2016-09-14 | 2019-08-09 | 盛科网络（苏州）有限公司 | Real-time adjustment method and debugging system based on multicast copy packet |
| CN106776278A (en) * | 2016-11-23 | 2017-05-31 | 福州瑞芯微电子股份有限公司 | A kind of DSP adjustment methods and device based on Duo-Core Architecture |
| CN108255692A (en) * | 2016-12-28 | 2018-07-06 | 新华三技术有限公司 | Information processing method and device |
| CN108255692B (en) * | 2016-12-28 | 2021-02-26 | 新华三技术有限公司 | Information processing method and device |
| TWI641247B (en) * | 2017-03-23 | 2018-11-11 | 瑞軒科技股份有限公司 | Method for processing messages |
| CN108388510A (en) * | 2018-02-09 | 2018-08-10 | 福建升腾资讯有限公司 | A kind of method and computer equipment controlling Debugging message output by storage configuration |
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