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A tailoring method of real-time operating system vxworks

A real-time operating system and operating system technology, applied in the field of real-time operating system applications, can solve the problems of incomplete tailoring and redundant codes of VxWorks, and achieve the effect of improving security and reliability and saving memory space

Active Publication Date: 2018-01-05
中国航天系统科学与工程研究院
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Problems solved by technology

[0005] The technical solution problem of the present invention is: overcome the deficiency of prior art, propose a kind of clipping method of real-time operating system VxWorks, this method can solve the problem that operating system VxWorks clipping is incomplete, has redundant code generation, can improve system simultaneously safety and reliability

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  • A tailoring method of real-time operating system vxworks

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Embodiment Construction

[0027] The present invention proposes a kind of tailoring method of real-time operating system VxWorks, such as figure 1 As shown, it includes four parts: component-level tailoring, file-level tailoring, function-level tailoring, and statement-level tailoring, as follows:

[0028] 1. Component-level tailoring of the original operating system VxWorks

[0029] (1.1) Obtain the components that need to be retained according to the functions required by the operating system VxWorks;

[0030] (1.2) By analyzing the dependencies among the VxWorks components of the operating system, obtain components that are dependent on the components that need to be retained;

[0031] (1.3) Use the tailoring software that comes with the operating system VxWorks to tailor the components in the operating system VxWorks except (1.1) and (1.2);

[0032] For example, after analysis, the banner components, network components, serial port components, and WDB components in the operating system do not bel...

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Abstract

The invention discloses a real-time operating system VxWorks tailoring method. The method includes the first step of component-level tailoring, the second step of file-level tailoring, the third step of function-level tailoring and the fourth step of statement-level tailoring, wherein in the first step, an operating system tool is used for tailoring components not needed by an operating system; in the second step, Makefiles are combed, and files which do not need to be reserved and files which are not compiled are tailored; in the third step, calling and called relations of functions are analyzed, and the functions which are not called are tailored; in the fourth step, by means of code walkthrough and analysis, codes which are not needed are tailored. By means of the method, the problems that tailoring of the operating system is not complete and redundant codes are generated can be solved, and meanwhile system safety and reliability can be improved.

Description

technical field [0001] The invention relates to a tailoring method of a real-time operating system VxWorks, which belongs to the field of real-time operating system applications. Background technique [0002] The operating system VxWorks is an embedded real-time operating system launched by American WindRiver Company. The microkernel Wind of VxWorks is a standard embedded real-time operating system kernel with high performance. Compared with other embedded real-time operating systems, it has certain advantages due to the advantages of short time, small interrupt delay, and large network traffic. [0003] The VxWorks system has a good tailoring ability, and developers can increase or decrease the function and size of the operating system through the cross-development environment, so as to adjust the system resources of the application program. [0004] Most of the existing clipping methods are clipped through the component management interface of the development tool. Howev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/445G06F9/44
Inventor 王瑞刘志成陆璐胡泉李沫孙凤丽杜轩郭栋杨磊陈亚伟郑明慧李国良杨桂枝杨隽杨昕
Owner 中国航天系统科学与工程研究院
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