The current version has every function stubbed out for !x86. Only two functions (pmu_alias_get() and pmc_pmu_pmcallocate() are really platform dependent, so reduce the width of the ifdefs and remove some of the stubs. Reviewed by: ray MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D30532