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perf tools: Add fake pmu support

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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: Jiri Olsa <jolsa@kernel.org>
Acked-by: Ian 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.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2020-06-02 23:47:29 +02:00
committed by Arnaldo Carvalho de Melo
parent a1f8bc95c3
commit 387ad33fe7
4 changed files with 50 additions and 8 deletions
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3
tools/perf/util/parse-events.h
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@@ -127,9 +127,10 @@ struct parse_events_state {
int idx;
int nr_groups;
struct parse_events_error *error;
struct evlist *evlist;
struct evlist *evlist;
struct list_head *terms;
int stoken;
struct perf_pmu *fake_pmu;
};
void parse_events__handle_error(struct parse_events_error *err, int idx,