Method and system for injecting hotfix into software of embedded system
An embedded system and hot patch technology, which is applied in the direction of program loading/starting, program control devices, etc., can solve the problems of long patch activation process and affecting program operation, and achieve the effect of saving memory space and simplifying operation
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[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0046] see figure 1 As shown, the embodiment of the present invention provides a method for injecting hot patches into embedded system software, comprising the following steps:
[0047] S1, jump table reservation: in the software program compilation stage, by modifying the link script of the software program, a number of secondary jump table reserved areas are reserved in each module code segment of the software program (such as figure 2 shown), and define an identifier for the second-level jump table reserved area, which is used to mark the second-level jump table reserved area in the software program; in the patch file compilation stage, by modifying the link script of the patch file, in Several three-level jump table reserved areas are reserved in each module code segment of the patch file, and an identifier is also defined for t...
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