CN103136025B - The method and apparatus of multi-stage loading program - Google Patents
The method and apparatus of multi-stage loading program Download PDFInfo
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- CN103136025B CN103136025B CN201310043794.5A CN201310043794A CN103136025B CN 103136025 B CN103136025 B CN 103136025B CN 201310043794 A CN201310043794 A CN 201310043794A CN 103136025 B CN103136025 B CN 103136025B
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Abstract
The method and apparatus that the present invention relates to a kind of loading application programs, the method includes: run the one-level loading procedure in ROM, the program that in search storage medium, one-level loading procedure is to be loaded；The program searched left on RAM and runs, judging whether to need to search for next stage program according to operation result；The most then searching for next stage program in storage medium, the rest may be inferred, until judging to need not search for next stage program.The method loads final execution program by multi-stage loading program, one-level loading procedure can not success load and execution program time, two stage loading program or multi-stage loading program can be used to carry out load and execution program, improve successfully the probability of load and execution program.
Description
Technical field
The present invention relates to communication technical field, the method and apparatus particularly relating to a kind of multi-stage loading program.
Background technology
In the mode of conventional loader, loading procedure directly searches execution program according to rule, or first passes through search address set table, and the address information re-using this table completes the search to the program of execution.For this method flash memory relatively good to quality, higher when its search efficiency and stability.The capacity of flash memory is increasing now, and the position of flash memory storage valid data broadens extensively the most accordingly.But due to the problem of manufacturing process, causing some or certain a batch of flash memory mass ratio poor, error correction is higher, and this also determines some critical data must leave some specific position in.According to reality, storage product has the highest requirement to efficiency and stability, and capacity is big and efficiency and stability are directly caused and significantly impacts by quality low the two problem, the method therefore using traditional program load and execution program is poor efficiency and unsafe way.
Summary of the invention
The main object of the present invention is to provide the method and apparatus of a kind of multi-stage loading program, it is intended to improve the probability of successfully load and execution program.
The present invention proposes a kind of method of multi-stage loading program, including:
Run the one-level loading procedure in ROM, the program that described in search storage medium, one-level loading procedure is to be loaded；
The program searched left on RAM and runs, determining whether to load next stage program according to operation result；
The most then searching for next stage loading procedure in storage medium, the rest may be inferred, until judging to need not search for next stage program.
Preferably, described in described search storage medium, the step of the program that one-level loading procedure is to be loaded includes:
The address set table at the address table place according to program to be loaded described in keyword search, it is judged that whether described key word mates with described address set table；
The most described address set table is carried out error checking and correction；
The address table of described program to be loaded is obtained according to described address set table；
Address table according to described program to be loaded obtains the program that described one-level loading procedure is to be loaded；
If judging, key word does not mates with described address set table, then continue according to address set table described in keyword search.
Preferably, include before the step of the address table that the address set table at the described address table place according to described program to be loaded obtains described program to be loaded:
Judge that described address set table is the most effective；
The address table of described program to be loaded the most then is obtained according to described address set table；
If it is not, then continue according to address set table described in described keyword search.
Preferably, also include before the step of the described program to be loaded according to the address table described one-level loading procedure of acquisition of described program to be loaded:
Judge that the address table of described program to be loaded is the most effective；
The most then obtain, according to the address table of described program to be loaded, the program that described one-level loading procedure is to be loaded；
If it is not, then according to the address set table of program to be loaded described in described keyword search.
Preferably, include before the described step program searched being left on RAM and running:
Whether the program searched described in judgement has invalid program segment；
If it is not, the program searched described in then directly running；
The program that the most then described in search storage medium, one-level loading procedure is to be loaded；
Effective program segment is stitched together, a complete effective program of composition；
The program searched described in operation.
The present invention also proposes the device of a kind of multi-stage loading program, it is characterised in that including:
Run module, for running one-level loading procedure, and the program that run search arrives on RAM on ROM；
First judge module, for judging whether to need to load next stage program according to the operation result of the program searched；
Search module, for searching for the program that the loading procedure of one-level loading procedure progression extremely corresponding to described storage medium is to be loaded in storage medium.
Preferably, described search module includes:
Search unit, for searching for the address set table of described program to be loaded in described storage medium according to key word；
First judging unit, for judging whether described key word mates with the address set table of described program to be loaded；
Error correction unit, for carrying out error checking and correction to the address set table of program to be loaded；
First acquiring unit, obtains the address table of program to be loaded for the address set table according to described program to be loaded；
3rd search unit, obtains, for the address table according to described program to be loaded, the program that described one-level loading procedure is to be loaded.
Preferably, described search module also includes the second judging unit, and the address table of address set table and described program to be loaded for judging described program to be loaded is the most effective；If described search unit is additionally operable to judge, when the address table of the address set table of described program to be loaded or described program to be loaded is invalid, continue according to the address set table searching for described program to be loaded described in described keyword search according to key word in described storage medium.
Preferably, also include:
Second judge module, for run search to program before judge described in whether the program that searches has invalid program segment；
Concatenation module, for effective program segment is stitched together, a complete effective program of composition.
The method and apparatus of multi-stage loading program proposed by the invention, final execution program is loaded by multi-stage loading program, one-level loading procedure can not success load and execution program time, two stage loading program or multi-stage loading program can be used to carry out load and execution program, improve the probability of loading procedure success load and execution program.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of method one embodiment of multi-stage loading program of the present invention；
Fig. 2 be multi-stage loading program of the present invention method in search for the schematic flow sheet of program one embodiment corresponding with one-level loading procedure in storage medium；
Fig. 3 be multi-stage loading program of the present invention method in search for the schematic flow sheet of program another embodiment corresponding with one-level loading procedure in storage medium；
Fig. 4 be multi-stage loading program of the present invention method in search for the schematic flow sheet of the program another embodiment corresponding with one-level loading procedure in storage medium；
Fig. 5 is the schematic flow sheet of another embodiment of method of multi-stage loading program of the present invention；
Fig. 6 is the structural representation of device one embodiment of multi-stage loading program of the present invention；
Fig. 7 be multi-stage loading program of the present invention device in the structural representation of search module one embodiment；
Fig. 8 be multi-stage loading program of the present invention device in the structural representation of another embodiment of search module；
Fig. 9 is the structural representation of another embodiment of device of multi-stage loading program of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment is described further with regard to technical scheme.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Schematic flow sheet with reference to method one embodiment that Fig. 1, Fig. 1 are multi-stage loading program of the present invention.
The multi-level procedure loading method that the present embodiment is proposed, including:
Step S10, runs the one-level loading procedure in ROM；
ROM is read-only memory, the all storage data being previously stored can only be read, during power down, data will not be lost, one-level loading procedure is saved in ROM, running one-level loading procedure when energising, one-level loading procedure is for completing the search performing program on storage medium according to certain rule, load and run.
Step S20, the program that in search storage medium, one-level loading procedure is to be loaded；
Storage medium can be flash memory or other storage device, when searching for program corresponding with one-level loading procedure in storage medium, can first search for address set table, then according to the program that collection table search in address is corresponding with the first loading procedure, certainly may be used without other modes.
Step S30, leaves on RAM by the program searched and runs；
RAM is memory space, can deposit data and program leaves the data of this memory space in and can the most arbitrarily take out or be stored in, and after power down, data and program can disappear.Can leave on RAM by the program searched, during power-off, this program disappears, not under the influence of the preservation of program once.
Step S40, determines whether to load next stage program according to operation result；
After the program that run search arrives on RAM, determine whether to load next stage program according to operation result, if not, then this program searched is execution program, performing the function of this execution program, if judging to need to load next stage program, then this program searched is two stage loading program.
Step S50, if judging to need to load next stage program, then searches for next stage loading procedure in storage medium, and the rest may be inferred, until judging to need not search for next stage program.
If judging to need to load next stage program, then this program searched is two stage loading program, run this two stage loading program, the program that two stage loading program is to be loaded is searched in storage medium, judging whether to need to load next stage program according to operation result, if judging to need to load next stage program, then this program searched is three grades of loading procedures, the like, till judging to need not load next stage program.
The method of the multi-stage loading program that the present embodiment is proposed, final execution program is loaded by multi-stage loading program, one-level loading procedure can not success load and execution program time, two stage loading program or multi-stage loading program can be used to carry out load and execution program, improve the probability of loading procedure success load and execution program.
It it is the schematic flow sheet searching for program one embodiment corresponding with one-level loading procedure in storage medium in the method for multi-stage loading program of the present invention with reference to Fig. 2, Fig. 2.
Based on above-described embodiment, step S20 includes:
Step S21, according to the address set table at the address table place of keyword search program to be loaded；
Multiple address set table is set in storage medium, according to the address set table of keyword search Yu Keywords matching.
Step S22, it is judged that whether described key word mates with the address set table at the address table place of program to be loaded；
When search during the address set table at the address table place of program to be loaded, according to and loading procedure set by keyword scan for, employing determining method during search, it is judged that the collection table of each loading procedure whether with Keywords matching.
Step S23, if judging, key word mates with the collection table of loading procedure, then the address set table at the address table place of program to be loaded to this carries out error checking and correction；
When judging that key word mates with the collection table of loading procedure, the address set table at the address table place of program then to be loaded to this loading carries out error checking and correction, when judging that the key word address set table with the address table place of program to be loaded does not mates, the address set table at the address table place of program that then need not be to be loaded to this carries out error checking and correction rather than the address set table at the address table place of each program to be loaded is carried out error checking and correction.Use the method that the collection table of loading procedure is carried out error checking and correction, save the time that when search, the address set table at the address table place of program to be loaded is carried out error correction inspection, improve search efficiency.
Step S24, obtains the address table of program to be loaded according to the address set table at the address table place of program to be loaded；
In the address set table at the address table place that the address of the address table of program to be loaded is saved in program to be loaded, accordingly by less for the data of preservation in the address set table at the address table place of program, in the case of error correcting capability is certain, relatively directly searching the address table of program to be loaded with tradition and carry out error correction, critical data safety is many.
Step S25, searches for the program that described one-level loading procedure is to be loaded in loading procedure address table.
The address set table at the address table place of the first program to be loaded according to keyword search of the present embodiment, the address table of table search program to be loaded is combined further according to address, then the address table according to program to be loaded obtains the address of one-level loading procedure program to be loaded, and obtains this program.
If judging, key word does not mates with the address set table at the address table place of program to be loaded, then proceed step S21 i.e. according to the address set table at the address table place of keyword search program to be loaded.
It it is the schematic flow sheet searching for program another embodiment corresponding with one-level loading procedure in storage medium in the method for multi-stage loading program of the present invention with reference to Fig. 3, Fig. 3.
Based on above-described embodiment, also included before step S24:
Step S26, it is judged that the address set table at the address table place of program to be loaded is the most effective.
If judging the address set table at the address table place of program to be loaded effectively, performing step S24 and i.e. obtaining the address table of program to be loaded according to the address set table at the address table place of program to be loaded, if judging, the address set table at the address table place of program to be loaded is invalid, then perform step S21, i.e. according to the address set table at the address table place of keyword search program to be loaded.
The address set table at the address table place of multiple program to be loaded is write in storage medium, when search with the address set table of keyword match after, when this address set table is invalid, then re-search for the address set table at the address table place of program to be loaded according to key word.
It is that the method for multi-stage loading program of the present invention is searched for the schematic flow sheet of the program another embodiment that one-level loading procedure is to be loaded in storage medium with reference to Fig. 4, Fig. 4.
Based on above-described embodiment, also included before step S25:
Step S27, it is judged that the address table of program to be loaded is the most effective.
If judging the address table of program to be loaded effectively, performing step S25 and i.e. obtaining, according to the address table of program to be loaded, the program that one-level loading procedure is to be loaded, if judging, the address table of program to be loaded is invalid, then perform step S21, i.e. according to the address set table at the address table place of keyword search program to be loaded.
The address table of multiple program to be loaded is write in storage medium, when after the address table obtaining program to be loaded according to address collection table, if the address table of this program to be loaded is invalid, then re-search for the address set table at the address table place of program to be loaded according to key word, further according to the address table of address set table search program to be loaded at the address table place of program to be loaded.
Schematic flow sheet with reference to another embodiment of method that Fig. 5, Fig. 5 are multi-stage loading program of the present invention.
Based on above-described embodiment, also included before step S30:
Step S60, it is judged that whether have invalid program segment in the program searched；
Step S70, if judging do not have invalid program segment, is stitched together effective program segment, a complete effective program of composition.
In the present embodiment, the program searched in storage medium is multiple program code segments, judge whether this program has invalid program code segments, if without, carrying out step S70 will effectively be stitched together by program segment, the a complete effective program of composition, then carries out step S30 and i.e. runs this execution program；If judging execution program has invalid execution phase, then carry out step S20, until searching all effective execution code segments, then perform step S70 will effectively be stitched together by execution phase, composition portion completely effectively performs program, then carries out step S30 and i.e. runs this execution program.
Structural representation with reference to device one embodiment that Fig. 6, Fig. 6 are multi-stage loading program of the present invention.
The device of the multi-stage loading program that the present embodiment is proposed, including:
Run module 10, for running one-level loading procedure, and the program that run search arrives on RAM on ROM
One-level loading procedure is saved in ROM, and runs in ROM, and the program that other search such as two stage loading program, three grades of loading procedures etc. and execution program are saved in RAM and run.ROM is read-only memory, the all storage data being previously stored can only be read, during power down, data will not be lost, one-level loading procedure is saved in ROM, running one-level loading procedure when energising, one-level loading procedure is for completing the search performing program on storage medium according to certain rule, load and run.RAM is memory space, can deposit data and program leaves the data of this memory space in and can the most arbitrarily take out or be stored in, and after power down, data and program can disappear.Can leave on RAM by the program searched, during power-off, this loading procedure disappears, not under the influence of the preservation of program once.
First judge module 20, for judging whether to need to load next stage program according to the operation result of the program searched；
After the program that run search arrives on RAM, determine whether to load next stage program according to operation result, if not, then this program searched is execution program, performing the function of this execution program, if judging to need to load next stage program, then this program searched is two stage loading program.
Search module 30, for searching for the program that the loading procedure of one-level loading procedure progression extremely corresponding to described storage medium is to be loaded in storage medium.
If judging to need to load next stage program, then this program searched is two stage loading program, run this two stage loading program, the program that two stage loading program is to be loaded is searched in storage medium, judging whether to need to load next stage program according to operation result, if judging to need to load next stage program, then this program searched is three grades of loading procedures, the like, till judging to need not load next stage program.
The device of the multi-stage loading program that the present embodiment is proposed, final execution program is loaded by multi-stage loading program, one-level loading procedure can not success load and execution program time, two stage loading program or multi-stage loading program can be used to carry out load and execution program, improve successfully the probability of load and execution program.
It it is the structural representation of search module one embodiment in the device of multi-stage loading program of the present invention with reference to Fig. 7, Fig. 7.
Based on above-described embodiment, search module 30 includes:
Search unit 31, for searching for the address set table at the address table place of program to be loaded in storage medium according to key word；
The address set table at the address table place of multiple program to be loaded is set in storage medium, according to the address set table of keyword search Yu Keywords matching.
First judging unit 32, for judging whether key word mates with the address set table at the address table place of program to be loaded；
When search during the address set table at the address table place of program to be loaded, according to and loading procedure set by keyword scan for, employing determining method during search, it is judged that the collection table of each loading procedure whether with Keywords matching.
Error correction unit 33, for carrying out error checking and correction to the address set table at the address table place of program to be loaded；
When the first judging unit 32 judges that key word mates with the collection table of loading procedure, the address set table at the address table place of the program that error correction unit 33 is then to be loaded to this loading carries out error checking and correction, when the first judging unit 32 judges that key word does not mates with the address set table at the address table place of program to be loaded, then the address set table at the address table place of the program that error correction unit 33 need not be to be loaded to this carries out error checking and correction rather than the address set table at the address table place of each program to be loaded is carried out error checking and correction.Use the method that the collection table of loading procedure is carried out error checking and correction, save the time that when search, the address set table at the address table place of program to be loaded is carried out error correction inspection, improve search efficiency.
First acquiring unit 34, the address set table for the address table place according to program to be loaded obtains the address table of program to be loaded；
In the address set table at the address table place that the address of the address table of program to be loaded is saved in program to be loaded, accordingly by less for the data of preservation in the address set table at the address table place of program, in the case of error correcting capability is certain, relatively directly searching the address table of program to be loaded with tradition and carry out error correction, critical data safety is many.
Second acquisition unit 35, for obtaining, according to loading procedure address table, the program that one-level loading procedure is to be loaded.
The address set table at the address table place of the first program to be loaded according to keyword search of the present embodiment, combine table further according to address and obtain the address table of program to be loaded, then the address table according to program to be loaded obtains the address of one-level loading procedure program to be loaded, and obtains this program.If the first judging unit 32 judges that key word does not mates with the address set table at the address table place of program to be loaded, then search unit 31 continues the address set table at address table place of the program to be loaded according to keyword search.
It it is the structural representation of another embodiment of search module in the device of multi-stage loading program of the present invention with reference to Fig. 8, Fig. 8.
Based on above-described embodiment, search module 30 also includes:
Second judging unit 36, the address table of address set table and program to be loaded for judging the address table place of described program to be loaded is the most effective.
If the address set table that the second judging unit 36 judges the address table place of program to be loaded is effective, then the first acquiring unit 34 obtains the address table of program to be loaded according to the address set table at the address table place of program to be loaded, if the address set table that the second judging unit 36 judges the address table place of program to be loaded is invalid, then search unit 31 is according to the address set table at the address table place of keyword search program to be loaded.The address set table at the address table place of multiple program to be loaded is write in storage medium, when search unit 31 search with the address set table of keyword match after, if the address set table that the second judging unit 36 judges the address table place of this program to be loaded is invalid, then search unit 31 re-searches for the address set table at address table place of program to be loaded according to key word.
If the address table that the second judging unit 36 judges program to be loaded is effective, then second acquisition unit 35 obtains, according to the address table of program to be loaded, the program that one-level loading procedure is to be loaded, if the address table that the second judging unit 36 judges program to be loaded is invalid, then search unit 31 is according to the address set table at the address table place of keyword search program to be loaded.The address table of multiple program to be loaded is write in storage medium, after the first acquiring unit 34 obtains the address table of program to be loaded according to address collection table, if the address table that the second judging unit 36 judges this program to be loaded is invalid, then search unit re-searches for the address set table at address table place of program to be loaded according to key word, further according to the address table of the address set table search at the address table place of program to be loaded program to be loaded.
Structural representation with reference to another embodiment of device that Fig. 9, Fig. 9 are multi-stage loading program of the present invention.
Based on above-described embodiment, the device of multi-stage loading program of the present invention also includes:
Second judge module 40, for judging whether there is invalid program segment in the program searched；
Concatenation module 50, for effective program segment is stitched together, a complete effective program of composition.
In the present embodiment, the program searched in storage medium at search module 30 is multiple program segment, second judge module 40 judges whether there is invalid execution code segment in this program, if without concatenation module 50, effective program segment being stitched together, the a complete effective program of composition, then runs module 10 and runs this program；If the second judge module 40 determining program has invalid program segment, then search module 30 continues to search in storage medium the program that loading procedure is to be loaded, until searching all effective execution code segments, then effective program segment is stitched together by concatenation module 50, the a complete effective program of composition, runs module 10 and runs this program.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure transformation utilizing description of the invention and accompanying drawing content to be made; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (7)
1. the method for a multi-stage loading program, it is characterised in that including:
Run the one-level loading procedure in ROM, the program that described in search storage medium, one-level loading procedure is to be loaded；
Whether the program searched described in judgement has invalid program segment；
The most then continue executing with the step of the program that one-level loading procedure is to be loaded described in described search storage medium, until searching all effective execution code segments；
If it is not, effective program segment is stitched together, a complete effective program of composition；
The program searched left on RAM and runs, determining whether to load next stage program according to operation result；
The most then searching for next stage loading procedure in storage medium, the rest may be inferred, until judging to need not search for next stage program；
If it is not, the program this searched is as execution program.
Method the most according to claim 1, it is characterised in that described in described search storage medium, the step of the program that one-level loading procedure is to be loaded includes:
The address set table at the address table place according to program to be loaded described in keyword search, it is judged that whether described key word mates with the address set table of described program to be loaded；
The most described address set table is carried out error checking and correction；
The address table of described program to be loaded is obtained according to described address set table；
Address table according to described program to be loaded obtains the program that described one-level loading procedure is to be loaded；
If judging, key word does not mates with described address set table, then continue according to address set table described in keyword search.
Method the most according to claim 2, it is characterised in that include before the step of the described address table obtaining described program to be loaded according to described address set table:
Judge that described address set table is the most effective；
The most then perform to obtain the step of the address table of described program to be loaded according to described address set table；
If it is not, then continue according to address set table described in described keyword search.
Method the most according to claim 3, it is characterised in that also include before the step of the described program to be loaded according to the address table described one-level loading procedure of acquisition of described program to be loaded:
Judge that the address table of described program to be loaded is the most effective；
The most then obtain, according to the address table of described program to be loaded, the program that described one-level loading procedure is to be loaded；
If it is not, then according to the address set table of program to be loaded described in described keyword search.
5. the device of a multi-stage loading program, it is characterised in that including:
Run module, for running one-level loading procedure, and the program that run search arrives on RAM on ROM；
First judge module, for judging whether to need to load next stage program according to the operation result of the program searched, wherein, if need not load next stage program, then using the program that searches as execution program, if desired load next stage program, then in storage medium, search for next stage loading procedure, the rest may be inferred, until judging to need not search for next stage program；
Search module, for searching for the program that the loading procedure of the progression of correspondence is to be loaded in storage medium；
The device of described multi-stage loading program also includes:
Second judge module, for run search to program before judge described in whether the program that searches has invalid program segment；
Concatenation module, for when not having invalid program segment, is stitched together effective program segment, a complete effective program of composition；
Described search module, is additionally operable to when there being invalid program segment, searches for the program that the loading procedure of corresponding progression is to be loaded, until searching all effective execution code segments in storage medium.
Device the most according to claim 5, it is characterised in that described search module includes:
Search unit, for searching for the address set table at the address table place of described program to be loaded in described storage medium according to key word；
First judging unit, is used for judging whether described key word mates with described address set table；
Error correction unit, for carrying out error checking and correction to the address set table of program to be loaded；
First acquiring unit, for obtaining the address table of program to be loaded according to described address set table；
Second acquisition unit, obtains, for the address table according to described program to be loaded, the program that described one-level loading procedure is to be loaded.
Device the most according to claim 6, it is characterised in that described search module also includes the second judging unit, for judging that the address table of described address set table and described program to be loaded is the most effective；If described search unit is additionally operable to judge when the address table of described address set table or described program to be loaded is invalid, continue in described storage medium, to search for described address set table according to key word.
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