perf tools: Add fake pmu support
Add a way to create a pmu event without the actual PMU being in place. This way we can test metrics defined for any processor. The interface is to define fake_pmu in struct parse_events_state data. It will be used only in tests via special interface function added in following changes. Signed-off-by: NJiri Olsa <jolsa@kernel.org> Acked-by: NIan Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20200602214741.1218986-2-jolsa@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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