Commit 32a1ece4 authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
Browse files

perf intel-bts: Does not support AUX area sampling 



Add an error message because Intel BTS does not support AUX area
sampling.

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20191115124225.5247-16-adrian.hunter@intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent dbd13432

tools/perf/arch/x86/util/auxtrace.c

+2 −0
Original line number Diff line number Diff line
@@ -29,6 +29,8 @@ struct auxtrace_record *auxtrace_record__init_intel(struct evlist *evlist, 
	if (intel_pt_pmu)

		intel_pt_pmu->auxtrace = true;

	intel_bts_pmu = perf_pmu__find(INTEL_BTS_PMU_NAME);

	if (intel_bts_pmu)

		intel_bts_pmu->auxtrace = true;



	evlist__for_each_entry(evlist, evsel) {

		if (intel_pt_pmu && evsel->core.attr.type == intel_pt_pmu->type)

tools/perf/arch/x86/util/intel-bts.c

+5 −0
Original line number Diff line number Diff line
@@ -113,6 +113,11 @@ static int intel_bts_recording_options(struct auxtrace_record *itr, 
	const struct perf_cpu_map *cpus = evlist->core.cpus;

	bool privileged = perf_event_paranoid_check(-1);



	if (opts->auxtrace_sample_mode) {

		pr_err("Intel BTS does not support AUX area sampling\n");

		return -EINVAL;

	}



	btsr->evlist = evlist;

	btsr->snapshot_mode = opts->auxtrace_snapshot_mode;

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