Subscriber defined dynamic eventing
US-2015370552-A1 · Dec 24, 2015 · US
Method, device and system for activating on-line patch
US9075692B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9075692-B2 |
| Application number | US-201113336227-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 23, 2011 |
| Priority date | Feb 11, 2010 |
| Publication date | Jul 7, 2015 |
| Grant date | Jul 7, 2015 |
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Abstract
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Embodiments of the present invention provide a method, a device and a system for activating an on-line patch. The method comprises: positioning an address of a patch function and an entry address of a to-be-patched function; writing, in a middle segment, a long-jump instruction for jumping to the patch function based on the address of the patch function and the entry address of the to-be-patched function, where the middle segment is a storage space, which is located before or after the entry position of the to-be-patched function and can at least store one long-jump instruction; and modifying an instruction at the entry position of the to-be-patched function to a short-jump instruction for jumping to the middle segment, so as to jump to the middle segment after the short jump instruction is executed, and then to jump to and execute the patch function through that instructions in the middle segment are executed.
First claim
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What is claimed is: 1. A method for activating an on-line patch, the method comprising: reserving, while a to-be-patched program is compiled, a middle segment adjacent an entry position of each function of one or more to-be-patched functions of the to-be-patched program; determining an address of a patch function and an entry address of the to-be-patched function; writing, in the middle segment, a long-jump instruction for jumping to the patch function based on the address of…
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Frequently asked questions
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- What does patent US9075692B2 cover?
- Embodiments of the present invention provide a method, a device and a system for activating an on-line patch. The method comprises: positioning an address of a patch function and an entry address of a to-be-patched function; writing, in a middle segment, a long-jump instruction for jumping to the patch function based on the address of the patch function and the entry address of the to-be-patche…
- Who is the assignee on this patent?
- Yu Jiaqiang, Zheng Wei, Huawei Tech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G06F8/67. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 07 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).