Systemtap Language
systemtap is so powerful, because we could write scripts to program the behavior according to our purpose.
The magic all exists in the script.
The script is like c/awk. The general idea is simple, while there are still different concepts need to understand before we can handle the script.
Based on my humble understanding, a programming language could be divided into several parts:
Besides these, systemtap has several special parts:
When I almost finish this serials, I found a very good Language Reference from RH. I believe this one is more sophisticated than my serials. I would recommend you to read that and my serials would refer to that one in some points.
BTW, I am glad to see the author was my colleague. Thanks to IBM.
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