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authorArnaldo Carvalho de Melo <acme@redhat.com>2021-04-14 16:08:16 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-04-15 22:33:57 +0300
commit9865ea8ab31f2e56be59125099ee251ce573f293 (patch)
treea1d8ff2020f73b077815e136a180c889f720e5c6 /tools/perf/util/evlist.h
parent5676dba708bbb1fc94a9d3b2e9c114db9e4c6699 (diff)
downloadlinux-9865ea8ab31f2e56be59125099ee251ce573f293.tar.xz
perf evlist: Add a method to return the list of evsels as a string
Add a 'scnprintf' method to obtain the list of evsels in a evlist as a string, excluding the "dummy" event used for things like receiving metadata events (PERF_RECORD_FORK, MMAP, etc) when synthesizing preexisting threads. Will be used to improve the error message for workload failure in 'perf record. Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lore.kernel.org/lkml/20210414131628.2064862-2-acme@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evlist.h')
-rw-r--r--tools/perf/util/evlist.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index b695ffaae519..a8b97b50cceb 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -365,4 +365,6 @@ int evlist__ctlfd_ack(struct evlist *evlist);
#define EVLIST_DISABLED_MSG "Events disabled\n"
struct evsel *evlist__find_evsel(struct evlist *evlist, int idx);
+
+int evlist__scnprintf_evsels(struct evlist *evlist, size_t size, char *bf);
#endif /* __PERF_EVLIST_H */