[Bug 230984] pmccontrol can't display event names anymore

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230984

            Bug ID: 230984
           Summary: pmccontrol can't display event names anymore
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: markj at FreeBSD.org

I guess this stopped working when the PMC event definitions moved to libpmc.

markj at biggie> sudo pmccontrol -L
SOFT
        CLOCK.HARD
        CLOCK.STAT
        CLOCK.PROF
        PAGE_FAULT.ALL
        PAGE_FAULT.READ
        PAGE_FAULT.WRITE
        LOCK.FAILED
TSC
        TSC
IAP
pmccontrol: ERROR: Cannot find information for event class "IAP": Invalid
argument

I also can't use any of the standard event names with pmcstat anymore:

markj at biggie> sudo pmcstat -P instructions-retired find -x / -name foo
pmcstat: ERROR: pmc_pmu_allocate failed, check for ctrname instructions-retired

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