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RE: about systemtap test!
- From: "Stone, Joshua I" <joshua dot i dot stone at intel dot com>
- To: "Kevin Jia" <jiaminghao at gmail dot com>
- Cc: <systemtap at sourceware dot org>
- Date: Fri, 24 Mar 2006 18:06:50 -0800
- Subject: RE: about systemtap test!
Kevin Jia wrote:
> So why have not anything include the open's parenttheses? And what
> meaning of the "argstr"?
In your script, argstr has not been set to anything. It is being
inferred as a string from the format you gave, and the default value of
a string is "". If instead you use the syscall tapset to probe
syscall.open, then a formatted argstr will be built for you. The argstr
gives a string representation of all of the parameters to the syscall.
> 2. how use systemtap probes the watchpoint? Can you give me some
> examples?
I'm not sure what you're asking here. The SystemTap website has a few
architecture documents that might give the answer you're looking for.
If not, please try to rephrase your question.
Josh Stone