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| author | Howard Chu <howardchu95@gmail.com> | 2024-08-15 09:36:17 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2024-08-28 18:07:21 -0300 |
| commit | 4451dae46992131ef5c42147444c183c364b1149 (patch) | |
| tree | 8464433b3db2d795ac8fa4b64bb8c13f33234745 /tools/perf | |
| parent | 8b48f8ba16b06024920c8ff349fed769118777cc (diff) | |
| download | lwn-4451dae46992131ef5c42147444c183c364b1149.tar.gz lwn-4451dae46992131ef5c42147444c183c364b1149.zip | |
perf evlist: Introduce method to find if there is a bpf-output event
We'll use it in the next patch, to deciding how to set up the ring
buffer.
Signed-off-by: Howard Chu <howardchu95@gmail.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240815013626.935097-2-howardchu95@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/evlist.c | 12 | ||||
| -rw-r--r-- | tools/perf/util/evlist.h | 1 |
2 files changed, 13 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index c0379fa1ccfe..ef58a7764318 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -2627,3 +2627,15 @@ void evlist__uniquify_name(struct evlist *evlist) } } } + +bool evlist__has_bpf_output(struct evlist *evlist) +{ + struct evsel *evsel; + + evlist__for_each_entry(evlist, evsel) { + if (evsel__is_bpf_output(evsel)) + return true; + } + + return false; +} diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index b46f1a320783..bcc1c6984bb5 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -447,5 +447,6 @@ int evlist__scnprintf_evsels(struct evlist *evlist, size_t size, char *bf); void evlist__check_mem_load_aux(struct evlist *evlist); void evlist__warn_user_requested_cpus(struct evlist *evlist, const char *cpu_list); void evlist__uniquify_name(struct evlist *evlist); +bool evlist__has_bpf_output(struct evlist *evlist); #endif /* __PERF_EVLIST_H */ |