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Re: debuginfoless static user probes


On 05/04/2010 11:57 AM, Frank Ch. Eigler wrote:

...

> Another one would be to introduce the possibility of embedded-C
> *expressions* in the parse tree, so that the tapset-mark.cxx code
> could emit the equivalent of
> 
>      val = %{ (int64_t) k_fetch_register(0) %}
> 
> (assumed to be an int64_t valued C expression)
> instead of 
> 
>      function __foo0 () %{ THIS->__retvalue = k_fetch_register(0); %}
>      val = __foo0 ()
> 
> 
> Such a construct need not necessarily be parsed, thus available to
> end-user scripts.  Though it would make some things easier.  It could
> constitute a way to access kernel value macros.

Oooh - shiny.  So if this was implemented I could do something like this?

if ($var == %{ SOME_KERNEL_DEFINE %}) {
  ...
}

That would be great.

-- 
David Smith
dsmith@redhat.com
Red Hat
http://www.redhat.com
256.217.0141 (direct)
256.837.0057 (fax)


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