Commit e786a04b authored Jan 22, 2026 by Ian Rogers Committed by Arnaldo Carvalho de Melo Jan 23, 2026

perf inject: With --convert-callchain ignore the dummy event for dwarf stacks



On hybrid systems there is generally >1 event and a dummy event.

The perf inject --convert-callchain option is failing to convert
perf.data files on such systems reporting "--convert-callchain requires
DWARF call graph."

The failing event is the dummy event that doesn't need to be set up for
samples.

As such ignore this event when checking the evsels.

Fixes: 92ea788d ("perf inject: Add --convert-callchain option")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent dc329efc

tools/perf/builtin-inject.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2729,7 +2729,7 @@ int cmd_inject(int argc, const char **argv)
		}

		evlist__for_each_entry(inject.session->evlist, evsel) {
		if (!evsel__has_dwarf_callchain(evsel)) {
		if (!evsel__has_dwarf_callchain(evsel) && !evsel__is_dummy_event(evsel)) {
		pr_err("--convert-callchain requires DWARF call graph.\n");
		goto out_delete;
		}