perf auxtrace: Record whether an auxtrace mmap is needed

Add a flag needs_auxtrace_mmap to record whether an auxtrace mmap is
needed, in preparation for correctly determining whether or not an
auxtrace mmap is needed.
Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Acked-by: NIan Rogers <irogers@google.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20220506122601.367589-10-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/arch/arm/util/cs-etm.c

@@ -319,6 +319,7 @@ static int cs_etm_recording_options(struct auxtrace_record *itr,
 			}
 			evsel->core.attr.freq = 0;
 			evsel->core.attr.sample_period = 1;
+			evsel->needs_auxtrace_mmap = true;
 			cs_etm_evsel = evsel;
 			opts->full_auxtrace = true;
 		}

tools/perf/arch/arm64/util/arm-spe.c

@@ -160,6 +160,7 @@ static int arm_spe_recording_options(struct auxtrace_record *itr,
 			}
 			evsel->core.attr.freq = 0;
 			evsel->core.attr.sample_period = arm_spe_pmu->default_config->sample_period;
+			evsel->needs_auxtrace_mmap = true;
 			arm_spe_evsel = evsel;
 			opts->full_auxtrace = true;
 		}

tools/perf/arch/s390/util/auxtrace.c

@@ -98,6 +98,7 @@ struct auxtrace_record *auxtrace_record__init(struct evlist *evlist,
 	evlist__for_each_entry(evlist, pos) {
 		if (pos->core.attr.config == PERF_EVENT_CPUM_SF_DIAG) {
 			diagnose = 1;
+			pos->needs_auxtrace_mmap = true;
 			break;
 		}
 	}

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

@@ -129,6 +129,7 @@ static int intel_bts_recording_options(struct auxtrace_record *itr,
 			}
 			evsel->core.attr.freq = 0;
 			evsel->core.attr.sample_period = 1;
+			evsel->needs_auxtrace_mmap = true;
 			intel_bts_evsel = evsel;
 			opts->full_auxtrace = true;
 		}

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

@@ -649,6 +649,7 @@ static int intel_pt_recording_options(struct auxtrace_record *itr,
 			evsel->core.attr.freq = 0;
 			evsel->core.attr.sample_period = 1;
 			evsel->no_aux_samples = true;
+			evsel->needs_auxtrace_mmap = true;
 			intel_pt_evsel = evsel;
 			opts->full_auxtrace = true;
 		}

tools/perf/util/evsel.h

@@ -130,6 +130,7 @@ struct evsel {
 	bool			merged_stat;
 	bool			reset_group;
 	bool			errored;
+	bool			needs_auxtrace_mmap;
 	struct hashmap		*per_pkg_mask;
 	int			err;
 	struct {