Method for implementing long jumping dynamic patch in embedded system

A technology for embedded systems and implementation methods, used in instrumentation, error detection/correction, computing, etc.
CN100432931CInactive Publication Date: 2008-11-12ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2008-11-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for realizing dynamic patch long slip of embedded system includes distributing internal memory for patch small function region and patch function region, writing address of patch small function and address of patch function into patch file, preparing relevant short skip command for patched function and relevant long skip command for small function when patch function is loaded to internal memory, realizing long skip of dynamic patch upgrading by skipping short skip to small function then to patch function when patch is activated.
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Description

technical field

[0001] The invention relates to a method for time-length jump in software dynamic patch upgrade, in particular to a method for realizing long-time jump when the relative addresses of the patch function and the patched function exceed the short jump address range. Background technique

[0002] A software patch is a term in computer software systems and software engineering. It is generally an independent software unit released to modify certain errors in system software. The software dynamic patch upgrade technology is to complete the repair of system errors without affecting the normal operation of the system, that is, in the process of software operation, replace the old module with the patch module in real time, without interrupting the execution sequence of the original program .

[0003] In the embedded field, the existing dynamic patch upgrade technology usually adopts technical solutions such as figure 1 shown.

[0004] Wherein, the foreground is a t...

Claims

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