CN106020892A - Transfer method and system for boot parameters of non-linux system - Google Patents
Transfer method and system for boot parameters of non-linux system Download PDFInfo
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- CN106020892A CN106020892A CN201610356969.1A CN201610356969A CN106020892A CN 106020892 A CN106020892 A CN 106020892A CN 201610356969 A CN201610356969 A CN 201610356969A CN 106020892 A CN106020892 A CN 106020892A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
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Abstract
The invention discloses a transfer method and system for boot parameters of a non-linux system. The method comprises following steps: writing boot parameters transferred to system software in BootLoader codes to set memory addresses before running of system software; obtaining boot parameters from set memory addresses by system software after running of system software. The invention provides a manner of sharing BootLoader, non-linux system software information and data based on embedded system software of the BootLoader and non-linux system. In a way that BootLoader is used for transferring boot parameters to the non-linux system, consistency of BootLoader and information and data related to non-linux system software is kept in order to facilitate unified management of related information and data.
Description
Technical field
The present invention relates to embedded system technology field, particularly relate to a kind of non-Linux system software boot parameter
Transmission method and system.
Background technology
Embedded system is widely used in various electronic product, in embedded OS, BootLoader
It is to run before systems soft ware runs.Can with initiating hardware equipment, set up memory headroom mapping graph, from
And the hardware environment of system is taken to a proper states, in order to just it is ready to for the final systems soft ware that runs
True environment.In embedded systems, the most firmware program as BIOS, the most not whole
The loading of system starts task and is just completed by BootLoader completely.Boot parameter is the most popular
One class BootLoader, it is generally and linux system collocation forms whole built-in system software.Boot joins
Several descriptions according to its parameter carry out loading kernel, and relevant parameter is passed to kernel, so maintain
Relevant information in boot parameter and the concordance of systems soft ware.But when systems soft ware is non-Linux system
Time, Bootloader to be kept the most so facilitates with the information in systems soft ware and data consistent, because of
Do not support that Bootloader passes parameter to systems soft ware for non-Linux system software prior art.The most embedded
System typically all can be divided into several subregions memory blocks such as flash, these information Bootloader to be kept
Consistent with systems soft ware, for Linux system software, boot parameter (cmd line) is passed to kernel,
Then kernel is known that partition information according to the description of cmd line, but for non-Linux system software
For, current way is all just the information such as subregion to be compiled in program fixing in the dust, or not compiling
The configuration informations such as subregion cannot be revised in the case of amendment program.
Prior art is not for the parameter transfer method of non-Linux system, when systems soft ware uses non-linux
During system (such as UCOS, ECOS, OS21 etc.), systems soft ware just can only obtain by other means
Relevant information and data, such as in code, solidification relevant information is in the address of the storage devices such as flash, by being
System running software reads after getting up from the storage devices such as flash, the most such as during compiling, relevant information is solidificated in
In code, it is clear that these methods are shared relevant information and data between BootLoader and systems soft ware and protect
Hold and be unanimously all less than flexibly, it has not been convenient to the later maintenance of software, add maintenance cost.
Summary of the invention
The invention provides a kind of non-Linux system software boot parameter transfer method and system, it is achieved that pass through
BootLoader transmits boot parameter to non-Linux system software, maintains BootLoader and non-linux system
Relevant information in system software and the concordance of data, convenient unified management relevant information and data, reduce
Maintenance cost.
For realizing above-mentioned design, the present invention by the following technical solutions:
On the one hand, it is provided that a kind of non-Linux system software boot parameter transfer method, the method, including:
Before systems soft ware runs, in BootLoader code, the boot parameter passing to systems soft ware is write
Enter the memory address set；
After systems soft ware runs, systems soft ware obtains described boot parameter from the memory address set.
Preferably, described before systems soft ware runs, passing to systems soft ware in BootLoader code
Boot parameter read-in set memory address before, also include:
According to systems soft ware memory mapping situation, set a memory headroom and be used for depositing boot parameter；
The memory address that boot parametric distribution sets is given in systems soft ware；Boot parameter list adds
The memory address of boot parameter describes.
Preferably, described in BootLoader code pass to systems soft ware boot parameter read-in set
Memory address, including: describe according to the memory address of the boot parameter in boot parameter list, transmitting
The memory address set to the boot parameter read-in of systems soft ware.
Preferably, described systems soft ware obtains described boot parameter from the memory address set, including:
Systems soft ware obtains, from the memory address set, the boot parameter that BootLoader passes over, and analyzes
Boot parameter obtains corresponding information and data.
Preferably, the described memory address setting in systems soft ware boot parametric distribution, including:
In systems soft ware, the link script file .ld of amendment program, the setting distributing to boot parameter
Memory address adds in described link script file .ld；Or
In systems soft ware, distributed to the memory address of the setting of boot parameter by C language keyword definition；
Or
In systems soft ware, distribute to boot by the-D definition in the CGLAGS of C language compiling option
The memory address of the setting of parameter.
On the other hand a kind of non-Linux system software boot parameter transmission system is provided, this system, including:
Memory address writing module, before running at systems soft ware, transmission in BootLoader code
The memory address set to the boot parameter read-in of systems soft ware；
Boot parameter obtains module, and after running at systems soft ware, systems soft ware is from the memory address set
Obtain described boot parameter.
Preferably, also include:
Memory headroom setting module, for according to systems soft ware memory mapping situation, sets a memory headroom
For depositing boot parameter；
Memory address distribution module, for the memory address setting in systems soft ware boot parametric distribution；
Memory address describes and adds module, for adding the memory address of boot parameter in boot parameter list
Describe.
Preferably, described in BootLoader code pass to systems soft ware boot parameter read-in set
Memory address, including:
Memory address according to the boot parameter in boot parameter list describes, passing to systems soft ware
The memory address that boot parameter read-in sets.
Preferably, described systems soft ware obtains described boot parameter from the memory address set, including:
Systems soft ware obtains, from the memory address set, the boot parameter that BootLoader passes over, and analyzes
Boot parameter obtains corresponding information and data.
Preferably, the described memory address presetting in systems soft ware boot parametric distribution, including:
In systems soft ware, amendment program link script file .ld, distribute to boot parameter preset
Memory address adds in described link script file .ld；Or
In systems soft ware, distributed to the memory address preset of boot parameter by C language keyword definition；
Or
In systems soft ware, distribute to boot by the-D definition in the CGLAGS of C language compiling option
The memory address preset of parameter.
Compared with prior art, the invention have the benefit that before systems soft ware runs, at BootLoader
The boot parameter read-in memory address passing to systems soft ware in code；After systems soft ware runs, system
Software obtains described boot parameter according to described memory address.The present invention is based on BootLoader and non-linux
The built-in system software of system provides a kind of BootLoader and is total to non-Linux system software information and data
The mode enjoyed, it is achieved that transmit boot parameter to non-Linux system software by BootLoader, maintain
BootLoader and the relevant information in non-Linux system software and the concordance of data, convenient unified management phase
Pass information and data, reduce maintenance cost.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, the embodiment of the present invention will be retouched below
In stating, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
Some embodiments of the present invention, for those of ordinary skill in the art, are not paying creative work
Under premise, it is also possible to content according to embodiments of the present invention and these accompanying drawings obtain other accompanying drawing.
Fig. 1 is the one non-Linux system software boot parameter transmission side provided in the specific embodiment of the invention
The method flow diagram of the first embodiment of method.
Fig. 2 is the one non-Linux system software boot parameter transmission side provided in the specific embodiment of the invention
The method flow diagram of the second embodiment of method.
Fig. 3 is that the one non-Linux system software boot parameter transmission provided in the specific embodiment of the invention is
The block diagram of the first embodiment of system.
Fig. 4 is that the one non-Linux system software boot parameter transmission provided in the specific embodiment of the invention is
The block diagram of the second embodiment of system.
Detailed description of the invention
Technical scheme and the technique effect reached for making to present invention solves the technical problem that, using are more clear
Chu, is described in further detail the technical scheme of the embodiment of the present invention below in conjunction with accompanying drawing, it is clear that
Described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on this
Embodiment in bright, those skilled in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
Refer to Fig. 1, it is the one non-Linux system software boot provided in the specific embodiment of the invention
The method flow diagram of the first embodiment of parameter transfer method.As it can be seen, the method, including:
Step S101: before systems soft ware runs, passing to systems soft ware in BootLoader code
The memory address that boot parameter read-in sets.
Before systems soft ware runs, in BootLoader code, increase the process of boot parameter transmission,
Need in the memory address that the boot parameter read-in passing to systems soft ware sets.
Step S102: after systems soft ware runs, systems soft ware obtains described boot from the memory address set
Parameter.
In system software code increase boot parameter process, systems soft ware run after, systems soft ware from
The memory address set obtains boot parameter, analyzes boot parameter and obtains corresponding information and data.
In sum, the present embodiment is that built-in system software based on BootLoader with non-Linux system carries
Supply a kind of BootLoader and non-Linux system software information and the mode of data sharing, passed through
BootLoader transmits boot parameter to non-Linux system software, maintains BootLoader and non-linux system
Relevant information in system software and the concordance of data, convenient unified management relevant information and data, reduce
Maintenance cost.
Refer to Fig. 2, it is the one non-Linux system software boot provided in the specific embodiment of the invention
The method flow diagram of the second embodiment of parameter transfer method.As it can be seen, the method, including:
Step S201: according to systems soft ware memory mapping situation, sets a memory headroom and is used for depositing boot
Parameter.
For example, it is assumed that the memory size of embedded system is 128M, can set for depositing the interior of boot parameter
Depositing space is 0x87f80000-0x87f8ffff.
Step S202: give the memory address that boot parametric distribution sets in systems soft ware；Arrange in boot parameter
The memory address adding boot parameter in table describes.
The described memory address setting in systems soft ware boot parametric distribution, including:
A1: in systems soft ware, the link script file .ld of amendment program, distributing to setting of boot parameter
Fixed memory address adds in described link script file .ld, as follows:
A2: in systems soft ware, distributes to the internal memory of the setting of boot parameter by C language keyword definition
Address, as follows:
#define CMD_LINE_ADDR 0x87f80000；Or
A3: in systems soft ware, is distributed to by-D the definition in the CGLAGS of C language compiling option
The memory address of the setting of boot parameter, as follows:
CFLAGS+=-D CMD_LINE_ADDR=0x87f80000.
Can be to select any one mode in A1-A3 to boot parametric distribution internal memory ground in systems soft ware
Location.The described memory address set is as the starting point of the memory headroom of setting in step S201.
The described memory address adding boot parameter in boot parameter list describes, such as: set a ginseng
Number is used for describing the memory address cmd_line_addr=0x87f80000 of boot parameter, as follows:
Bootcmd=mtdparts=spi0.0:256k (boot), 64k (bootargs), 2944k (app), 2432k (rootfs),
1280k(data),64k(logo)
Cmd_line_addr=0x87f80000.
Described memory address describes the starting point corresponding to the memory headroom set in step S201.
Step S203: before systems soft ware runs, passing to systems soft ware in BootLoader code
The memory address that boot parameter read-in sets.
Before systems soft ware runs, in BootLoader code, increase the process of boot parameter transmission,
Need in the memory address that the boot parameter read-in passing to systems soft ware sets.
The described internal memory ground in BootLoader code, the boot parameter read-in passing to systems soft ware set
Location, including: describe according to the memory address of the boot parameter in boot parameter list, soft passing to system
The memory address that the boot parameter read-in of part sets.Accordingly, as follows:
Step S204: after systems soft ware runs, systems soft ware obtains described boot from the memory address set
Parameter.
The process of boot parameter, after systems soft ware runs, systems soft ware root is increased in system software code
Obtain boot parameter according to the memory address of described setting, analyze boot parameter and obtain corresponding information and data.
Described systems soft ware obtains described boot parameter from the memory address set, including: systems soft ware is from setting
Fixed memory address obtains the boot parameter that BootLoader passes over, and analyzes boot parameter and obtains accordingly
Information and data.Accordingly, as follows:
extern char__cmd_line_addr[]；
parse_cmd_line(__cmd_line_addr)；// concrete the needs that how to resolve are carried out according to real needs.
The present embodiment is that built-in system software based on BootLoader Yu non-Linux system provides one
BootLoader and non-Linux system software information and the mode of data sharing, give non-by BootLoader
Linux system software transmission boot parameter, maintains BootLoader relevant in non-Linux system software
Information and the concordance of data, convenient unified management relevant information and data, reduce maintenance cost.
The one non-Linux system software boot parameter transmission that the following is provides in the specific embodiment of the invention is
The embodiment of system, the embodiment of system embodiment based on above-mentioned method realizes, and the most most retouches
State, refer to the embodiment of preceding method.
Refer to Fig. 3, it is the one non-Linux system software boot provided in the specific embodiment of the invention
The block diagram of the first embodiment of parameter transmission system.As it can be seen, this system, including:
Memory address writing module 31, before running at systems soft ware, passing in BootLoader code
Pass the memory address that the boot parameter read-in of systems soft ware sets.
Boot parameter obtains module 32, and after running at systems soft ware, systems soft ware is from the internal memory ground set
Location obtains described boot parameter.
In sum, the present embodiment achieves and transmits boot by BootLoader to non-Linux system software
Parameter, makes relevant information and the shared more aspect of data between BootLoader and non-Linux system software, and
Maintain the concordance of relevant information and data, convenient unified management relevant information and data, reduce maintenance
Cost.
Refer to Fig. 4, it is the one non-Linux system software boot provided in the specific embodiment of the invention
The block diagram of the second embodiment of parameter transmission system.As it can be seen, this system, including:
Memory headroom setting module 41, for according to systems soft ware memory mapping situation, sets an internal memory sky
Between be used for depositing boot parameter.
Memory address distribution module 42, for the memory address setting in systems soft ware boot parametric distribution.
The described memory address setting in systems soft ware boot parametric distribution, including:
In systems soft ware, the link script file .ld of amendment program, the setting distributing to boot parameter
Memory address adds in described link script file .ld；Or
In systems soft ware, distributed to the memory address of the setting of boot parameter by C language keyword definition；
Or
In systems soft ware, distribute to boot by the-D definition in the CGLAGS of C language compiling option
The memory address of the setting of parameter.
Memory address describes and adds module 43, for adding the internal memory ground of boot parameter in boot parameter list
Location describes.
Memory address writing module 44, before running at systems soft ware, passing in BootLoader code
Pass the memory address that the boot parameter read-in of systems soft ware sets.
The described internal memory ground in BootLoader code, the boot parameter read-in passing to systems soft ware set
Location, including: describe according to the memory address of the boot parameter in boot parameter list, soft passing to system
The memory address that the boot parameter read-in of part sets.
Boot parameter obtains module 45, and after running at systems soft ware, systems soft ware is from the internal memory ground set
Location obtains described boot parameter.
Described systems soft ware obtains described boot parameter from the memory address set, including: systems soft ware is from setting
Fixed memory address obtains the boot parameter that BootLoader passes over, and analyzes boot parameter and obtains accordingly
Information and data.
In sum, the non-Linux system software boot parameter transmission system of the present embodiment offer achieves and passes through
BootLoader transmits boot parameter to non-Linux system software, maintains BootLoader and non-linux system
Relevant information in system software and the concordance of data, convenient unified management relevant information and data, reduce
Maintenance cost.
The know-why of the present invention is described above in association with specific embodiment.These describe and are intended merely to explain this
The principle of invention, and limiting the scope of the invention can not be construed to by any way.Based on herein
Explaining, those skilled in the art need not pay performing creative labour can associate other tool of the present invention
Body embodiment, within these modes fall within protection scope of the present invention.
Claims (10)
1. a non-Linux system software boot parameter transfer method, it is characterised in that including:
Before systems soft ware runs, in BootLoader code, the boot parameter passing to systems soft ware is write
Enter the memory address set；
After systems soft ware runs, systems soft ware obtains described boot parameter from the memory address set.
One the most according to claim 1 non-Linux system software boot parameter transfer method, it is special
Levy and be, described before systems soft ware runs, the boot passing to systems soft ware in BootLoader code
Before the memory address that parameter read-in sets, also include:
According to systems soft ware memory mapping situation, set a memory headroom and be used for depositing boot parameter；
The memory address that boot parametric distribution sets is given in systems soft ware；Boot parameter list adds
The memory address of boot parameter describes.
One the most according to claim 2 non-Linux system software boot parameter transfer method, it is special
Levy and be, described in BootLoader code pass to systems soft ware boot parameter read-in set in
Deposit address, including: describe, passing to be according to the memory address of the boot parameter in boot parameter list
The memory address that the boot parameter read-in of system software sets.
One the most according to claim 2 non-Linux system software boot parameter transfer method, it is special
Levying and be, described systems soft ware obtains described boot parameter from the memory address set, including:
Systems soft ware obtains, from the memory address set, the boot parameter that BootLoader passes over, and analyzes
Boot parameter obtains corresponding information and data.
One the most according to claim 2 non-Linux system software boot parameter transfer method, it is special
Levy and be, the described memory address setting in systems soft ware boot parametric distribution, including:
In systems soft ware, the link script file .ld of amendment program, the setting distributing to boot parameter
Memory address adds in described link script file .ld；Or
In systems soft ware, distributed to the memory address of the setting of boot parameter by C language keyword definition；
Or
In systems soft ware, distribute to boot by the-D definition in the CGLAGS of C language compiling option
The memory address of the setting of parameter.
6. a non-Linux system software boot parameter transmission system, it is characterised in that including:
Memory address writing module, before running at systems soft ware, transmission in BootLoader code
The memory address set to the boot parameter read-in of systems soft ware；
Boot parameter obtains module, and after running at systems soft ware, systems soft ware is from the memory address set
Obtain described boot parameter.
One the most according to claim 6 non-Linux system software boot parameter transmission system, it is special
Levy and be, also include:
Memory headroom setting module, for according to systems soft ware memory mapping situation, sets a memory headroom
For depositing boot parameter；
Memory address distribution module, for the memory address setting in systems soft ware boot parametric distribution；
Memory address describes and adds module, for adding the memory address of boot parameter in boot parameter list
Describe.
One the most according to claim 7 non-Linux system software boot parameter transmission system, it is special
Levy and be, described in BootLoader code pass to systems soft ware boot parameter read-in set in
Deposit address, including:
Memory address according to the boot parameter in boot parameter list describes, passing to systems soft ware
The memory address that boot parameter read-in sets.
One the most according to claim 7 non-Linux system software boot parameter transmission system, it is special
Levying and be, described systems soft ware obtains described boot parameter from the memory address set, including:
Systems soft ware obtains, from the memory address set, the boot parameter that BootLoader passes over, and analyzes
Boot parameter obtains corresponding information and data.
One the most according to claim 7 non-Linux system software boot parameter transmission system, it is special
Levy and be, the described memory address presetting in systems soft ware boot parametric distribution, including:
In systems soft ware, amendment program link script file .ld, distribute to boot parameter preset
Memory address adds in described link script file .ld；Or
In systems soft ware, distributed to the memory address preset of boot parameter by C language keyword definition；
Or
In systems soft ware, distribute to boot by the-D definition in the CGLAGS of C language compiling option
The memory address preset of parameter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610356969.1A CN106020892A (en) | 2016-05-26 | 2016-05-26 | Transfer method and system for boot parameters of non-linux system |
| PCT/CN2017/077986 WO2017202128A1 (en) | 2016-05-26 | 2017-03-24 | Boot parameter delivery method and system for non-linux system software |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610356969.1A CN106020892A (en) | 2016-05-26 | 2016-05-26 | Transfer method and system for boot parameters of non-linux system |
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| WO (1) | WO2017202128A1 (en) |
Cited By (1)
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| WO2017202128A1 (en) * | 2016-05-26 | 2017-11-30 | 深圳创维数字技术有限公司 | Boot parameter delivery method and system for non-linux system software |
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| CN112162779A (en) * | 2020-09-23 | 2021-01-01 | 龙芯中科技术有限公司 | Parameter transfer method, device, equipment and computer readable storage medium |
| CN112988133A (en) * | 2021-03-12 | 2021-06-18 | 麒麟软件有限公司 | Method for realizing customized function and fixed function address in boot stage |
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