[Bug translator/16478] stap -l process.function.label listing not just labels

[jistone at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=16478

Josh Stone <jistone at redhat dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |jistone at redhat dot com

--- Comment #1 from Josh Stone <jistone at redhat dot com> ---
(In reply to Jonathan Lebon from comment #0)
> $ stap -l 'process("labels.x").function("*").label("*")'

If you look at "... -vv |& grep pc=", you'll see those extras are all FUNC@:-1,
which is a sign that these were resolved through the symtab.  We should not
attempt symbtab at all for .label probes. (dwarf_query::has_label)

> Along these lines, it might be interesting to have a pplabel() tapset function.

Sure, sounds fine.  There are probably a lot of ppX() we could do, but this one
should be pretty straightforward.

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