VxWorks operating system scaling and customizing method for aerospace computer

Abstract

The invention discloses a VxWorks operating system scaling and customizing method for an aerospace computer, comprising the following steps of: firstly, executing module level scaling on source codes of an original VxWorks operating system, specifically, scaling a kernel source code directory irrelative to a system structure of a processor used in an onboard computer and scaling the kernel sourcecode director and a source code file corresponding to an operating system component irrelative to the application; secondly, executing source code function level scaling, specifically, deleting a function which cannot be called by the system software and the application software, in the kernel source code, and modifying a component configuration source file, a header file, the conditional compilation and a board support package; thirdly, modifying the scaled operating system source code according to the spacecraft software programming conventions; and finally, completely compiling the scaled operating system source code to generate an operating system kernel library. The method provided by the invention can solve the problems, such as that the onboard computer operating system occupies too much storage space and has excessive modules, codes of the onboard computer operating system are not coincident to the spacecraft software programming conventions, and the like.

Description

technical field [0001] The invention relates to a tailoring and customization technology of a real-time operating system, in particular to a method for tailoring and customizing a VxWorks operating system for an aerospace computer. Background technique [0002] Recently, with the increasingly wide application of satellites, the production cycle of satellites has been shortened day by day, and the functions of onboard computer software have become increasingly complex. It is urgent to use application software development platforms based on real-time operating systems, especially VxWorks operating systems, for software development, and to The real-time operating system performs targeted configuration tailoring. [0003] The existing operating system configuration pruning method generally adopts the development tools of the operating system to perform module-level pruning, that is, to delete unnecessary modules. However, this deletion is performed in the development tools, so p...

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a VxWorks operating system tailoring and customization method for aerospace computers, which can solve the problems that the on-board computer operating system software occupies too much storage space and has too many redundant modules, and solves the problem that the codes do not conform to aerospace requirements. In addition, as a streamlined operating system kernel, the tailoring solution can also ensure the reliability, real-time and security of the software, so as to realize the highly reliable, high-safety, streamlined and customized VxWorks operating system that meets aerospace applications