Systemtap and PHP? (was Re: Proposed F19 Feature: PHP 5.5 - To provide the latest PHP stack)

[David Malcolm]

On Tue, 2013-01-08 at 10:34 -0500, Jaroslav Reznik wrote:
[...]
> = Features/Php55 =
> https://fedoraproject.org/wiki/Features/Php55

[...snip...]
> Dtrace enabled build 

As I understand it, Fedora has systemtap but not dtrace (/usr/bin/dtrace
is a shim to systemtap), so does this mean that *systemtap* static
probes will be available for use when tracing php?  If so, that sounds
great, but it would probably be best to spell that out on the feature
page.

I see docs on DTrace within PHP here:
  https://wiki.php.net/rfc/dtrace

This blog post has some information on PHP and Systemtap:
http://blog.experimentalworks.net/2012/12/probing-php-with-systemtap-on-linux/

Is that the kind of thing that this aspect of the feature is hoping to
add?  If so, it's probably worth adding a link like the above to the
feature page.

Thanks; hope this is helpful
Dave