perf evsel: Add verbose 3 print of evsel name when opening

It is often useful to know not just the attribute and perf_event_open()
details when opening an evsel, but also the evsel's name. Add this debug
output for verbose 3 so that it won't interfere with the current verbose
2 output.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230601082954.754318-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index ed2e07186b715364872a1f27943f7c8f98db41d3..f607b5bddc7618749af973c0024d248944e063b0 100644 (file)
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2039,6 +2039,7 @@ static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus,
 fallback_missing_features:
        evsel__disable_missing_features(evsel);
 
+       pr_debug3("Opening: %s\n", evsel__name(evsel));
        display_attr(&evsel->core.attr);
 
        for (idx = start_cpu_map_idx; idx < end_cpu_map_idx; idx++) {