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How can we find the function body of the system function?

Source: Internet
Author: User
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How can we find the function body of the system function? Linux general technology-Linux programming and kernel information. The following is a detailed description. Graduation Design and a difficult problem. Many linux-defined functions are encountered during code analysis. Is there a way to quickly find it?
For example, do_gettimeofday (struct timeval * TV)


I 'd like to open the source code to find out. So much code. There is no such thing.
I am now using linux.
Has someone encountered a similar problem?
Tell me how to use it. Or you can use any tool. There will always be methods

There is also a manual that can identify functions.

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