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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: Adrian 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: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2019-11-15 14:42:25 +02:00 committed by Arnaldo Carvalho de Melo
parent dbd134322e
commit 32a1ece4bd
2 changed files with 7 additions and 0 deletions
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2
tools/perf/arch/x86/util/auxtrace.c
View File

@ -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)

5
tools/perf/arch/x86/util/intel-bts.c
View File

@ -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;