VxWorks cert quick start software implementation method and computer program product

Abstract

The invention discloses a VxWorks cert quick start software implementation method and a computer program product. Main functions (such as a file system and a network protocol stack) of a Vxworks certsystem are split and then linked with application programs depending on the main functions in a module mode to form a non-critical BIN file (called as a non-critical program). Application with high requirement for the starting time is only linked with the required minimum library file (called as a key program) of the Vxworks cert system. Meanwhile, a default initialization behavior of the system is changed, that is, the original process that all initialization operations are completed at a time when the system is started by Vxworks cret is changed, and the process is modified into staged initialization. According to the method, the applications with high requirements on the starting time are quickly started by the file mirror image with the minimum size and the most simplified initialization process, so that the purpose of prolonging the starting time of the key applications is achieved.

Description

technical field [0001] The invention relates to the technical field of airborne equipment, in particular to a VxWorks cert quick start software implementation method and a computer program. Background technique [0002] With the development of my country's civil aviation industry, airlines have put forward higher requirements for all aspects of airborne equipment. The start-up time of airborne equipment is an important indicator of equipment function. In the communication and navigation system or emergency evacuation system, because it involves the safety performance of the aircraft, the start-up time of the equipment is related to the availability of the entire system function, which is of great significance. [0003] Vxworks cert is an operating system provided by Wind River that meets the DO178C airborne software airworthiness certification standard, and is widely used in various airborne equipment. The entry function of the Vxworks cert system user application is usrApp...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the startup process of the traditional Vxworks cert system greatly affects the startup time of key applications, the present invention proposes a quick startup software implementation method for VxWorks cert, which can reduce the size of the Vxworks cert file image containing applications with high startup time requirements , to shorten the loading time of moving the image itself to DDR when the program is powered on, and at the same time delay the initialization of unnecessary Vxworks cert system functions (such as network, file system), so that applications that require high startup time can be The smallest size of the file image, the most simplified initialization process and fast startup, to achieve the purpose of improving the startup time of key applications

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