[ktap] Re: Proposal for ktap FFI module
- From: "zhangwei(Jovi)" <jovi.zhangwei@xxxxxxxxx>
- To: Yicheng <qycqycqycqycqyc@xxxxxxxxx>
- Date: Tue, 01 Oct 2013 22:55:57 +0800
On 2013/10/1 2:39, Yicheng wrote:
Hi all,
We, Yicheng and Qingping, are woking on implementing ktap FFI module. We
have done some research on the topic, and have come up with a rough design
for the project.
The attachement is our proposal slides, which introduces what the module is
for and our attack plan.
As our final goal, users should be able to call C functions and access C
structs easily in ktap scripts.
Please feel free to comment or ask any question about our design. We will
wait for feedback and start coding next week.
Very nice work.
I fully agree "Make it work first and optimize/beautify it later" which you
claimed in slide, so in first step we can ignore vmlinux debuginfo related
stuff, only focus on C definition parse and ffi calling, you already planed
this in step 1 and step 2. :)
"keep VM as simple as possible", absolutely right, this is also the coding
rule I followed, and there still have big space to improve in ktapvm.
Two FFI sample scripts in slide seems too simple, and not fully demonstrated
the attractive great usage of kernel FFI, I will try to think out more
sample script to demonstrate FFI kernel, to make peoples love this
feature :)
(Linux kernel FFI is a cool thing, and maybe so useful beyond our
imagination)
of course this doesn't relevant with your design work, so don't need
mind this.
ktap project already have wiki page in there, I'm thinking we can put the
contents into wiki page, to let people know your work. I can take this wiki
documentation job firstly if you don't mind.
Thank you.
jovi
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