[PATCH] Adding systemtap probe points in pthread library (slightly revised again)

[Roland McGrath]

> Some of the headers are used elsewhere, and thus I needed to make sure
> other locations don't get the probes by just including/using the
> functions (like lock functions, for example).

In all places that code is used, the same stuff is happening.  You want
probes there too.  Please look at all the places where these probes get
defined if you make them unconditional, and then give specific rationale
why each one should be omitted.