From: Adrian Hunter adrian.hunter@intel.com
[ Upstream commit 32a1ece4bdbde24734ab16484bad7316f03fc42d ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/arch/x86/util/auxtrace.c | 2 ++ tools/perf/arch/x86/util/intel-bts.c | 5 +++++ 2 files changed, 7 insertions(+)
diff --git a/tools/perf/arch/x86/util/auxtrace.c b/tools/perf/arch/x86/util/auxtrace.c index 7a7805583e3fe..ab641cfc8c2bb 100644 --- a/tools/perf/arch/x86/util/auxtrace.c +++ b/tools/perf/arch/x86/util/auxtrace.c @@ -35,6 +35,8 @@ struct auxtrace_record *auxtrace_record__init_intel(struct perf_evlist *evlist,
intel_pt_pmu = perf_pmu__find(INTEL_PT_PMU_NAME); intel_bts_pmu = perf_pmu__find(INTEL_BTS_PMU_NAME); + if (intel_bts_pmu) + intel_bts_pmu->auxtrace = true;
if (evlist) { evlist__for_each(evlist, evsel) { diff --git a/tools/perf/arch/x86/util/intel-bts.c b/tools/perf/arch/x86/util/intel-bts.c index 9b94ce5209170..9d83a7f3496cb 100644 --- a/tools/perf/arch/x86/util/intel-bts.c +++ b/tools/perf/arch/x86/util/intel-bts.c @@ -119,6 +119,11 @@ static int intel_bts_recording_options(struct auxtrace_record *itr, const struct cpu_map *cpus = evlist->cpus; bool privileged = geteuid() == 0 || perf_event_paranoid() < 0;
+ 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;