[lttng-dev] question

[Matthew Khouzam]

Hi Emy,

I'm a bit confused by your question, are you trying to modify an
obsolete system call let's say you want to instrument old code, it
should be moderately staightforward with kprobe. Lttng can read the
kprobes after.

Lttng can read the probes like this
http://lwn.net/Articles/491510/
here's some more info on kprobes
https://www.kernel.org/doc/Documentation/kprobes.txt

Hope this helps.
Matt


On 13-07-10 05:51 PM, emy moore wrote:
> hi all
>
> i try to understand how a system call is implemented so i do some
> modification in an obsolete system call.
>
> i want to know can i trace this system call using lttng knowing that
> it's an obsolete one ? if no how can i activate it's trace ?
>
>
>
>
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> lttng-dev at lists.lttng.org
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