user instruction tracing patch?

[Frank Ch. Eigler]

Hi -

> Can you point me at the patch(s) that implement conditional probes? 

Search for usage of the condition field in probe_point's.

> Presumably, I'm going to somehow have to identify the inputs [...]
> Can you give me an overview of how the mechanism works in the
> translator, and an idea of how these actions are attached to
> "condition".

You won't need to worry about this part.  It will be a generic feature
that will be activated for all probe families as a matter of course,
once I finish the first one (for ordinary kprobes).  The syntax is
already active, and checking of the condition expressions is already
present (early during pass 2).

- FChE