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Mastering Assembly Programming
book

Mastering Assembly Programming

by Alexey Lyashko
September 2017
Beginner to intermediate
290 pages
6h 58m
English
Packt Publishing
Content preview from Mastering Assembly Programming

__versions

The information in this section describes external symbols by version numbers and names thereof, and is used by the loader in order to ensure that the kernel and the LKM are using symbols of the same version, so there would not be any surprises. You may try to build a module without this section and it may even be loaded, but it is not suggested to do so. The loader refuses to load modules with invalid symbol versions, thus telling us that this information is not just for fun, but is used in order to prevent failures.

At the time, I could not find reliable information on where to obtain version numbers for certain symbols, but it may be a good workaround, which is definitely sufficient for our small LKM, to simply search for symbol ...

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Publisher Resources

ISBN: 9781787287488