[Bug runtime/19625] extend @perf() counter reading support to kernel space

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19625

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|extern @perf() counter      |extend @perf() counter
                   |reading support to kernel   |reading support to kernel
                   |space                       |space

--- Comment #1 from Frank Ch. Eigler <fche at redhat dot com> ---
See also kernel function perf_event_read_local() and pals.
It may make it possible for perf.* probes to supply a $value context variable.

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