Using regular expression filter system call

[Zev Weiss]

On Mon, Apr 10, 2017 at 02:12:02AM +0900, Masatake YAMATO wrote:
>> Recently, class %sched and %clock are added. Is it necessary to add
>> regular expression to filter system call?
>
>Interesting feature.
>
>> I use '@' as the prefix of regular expression. I think following regular
>> expressions may be used. @time, @[pg]id, @^wait @xattr, @^dup, @^send,
>> @^recv, @^read, @^write, @^sem, @^shm, @^msg, @^inotify, @^pkey_
>
>How about '/' (slash)?
>
>vi and sed users may be familiar with the notation.
>
>Masatake YAMATO
>

Agreed, this sounds like it would be a very handy feature -- though I'd 
suggest /regex/ for the syntax (a slash at each end, rather than just at 
the start) to match sed, awk, perl (I think dtrace also has similar 
predicate syntax as well?) etc.


Zev Weiss