[PATCH] tracer for sys_open() - sreadahead

[Frédéric Weisbecker]

2009/1/29 Ingo Molnar <mingo at elte.hu>:
>>
>> Several people talked me about utrace and gave some examples about it in
>> this discussion. The Api is very convenient to fetch syscall numbers,
>> arguments and return values. And the hooks are done in the generic core
>> code, so it is arch independent.
>>
>> The only drawback I can see is that it is not yet merged upstream, in
>> need of in-kernel users. If it only depends on this condition, we could
>> be these users...
>>
>> What do you think?
>
> sure - how do the minimal bits/callbacks look like which enable syscall
> tracing?
>
>        Ingo


There is a very straightforward example provided by Ananth in there:
http://lkml.org/lkml/2009/1/28/59