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perf evsel: Add pmu_name helper

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Add helper to get the name of the evsel's PMU. This handles the case
where there's no sysfs PMU via parse_events event_type helper.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20250109222109.567031-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Ian Rogers 2025-01-09 14:21:06 -08:00 committed by Namhyung Kim
parent 66e99fd5a1
commit 6ab89b7fc2
2 changed files with 11 additions and 0 deletions
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10
tools/perf/util/evsel.c
View File

@ -237,6 +237,16 @@ int evsel__object_config(size_t object_size, int (*init)(struct evsel *evsel),
return 0;
}
const char *evsel__pmu_name(const struct evsel *evsel)
{
struct perf_pmu *pmu = evsel__find_pmu(evsel);
if (pmu)
return pmu->name;
return event_type(evsel->core.attr.type);
}
#define FD(e, x, y) (*(int *)xyarray__entry(e->core.fd, x, y))
int __evsel__sample_size(u64 sample_type)

1
tools/perf/util/evsel.h
View File

@ -236,6 +236,7 @@ int evsel__object_config(size_t object_size,
void (*fini)(struct evsel *evsel));
struct perf_pmu *evsel__find_pmu(const struct evsel *evsel);
const char *evsel__pmu_name(const struct evsel *evsel);
bool evsel__is_aux_event(const struct evsel *evsel);
struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx);