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: Adrian Hunter <[e-mail]>
Acked-by: Ian Rogers <[e-mail]>
Cc: Alexey Bayduraev <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Leo Yan <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Link: http://lore.kernel.org/lkml/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

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

···
 			}
 			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

···
 			}
 			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

···
 	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

···
 			}
 			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

···
 			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

···
 	bool			merged_stat;
 	bool			reset_group;
 	bool			errored;
+	bool			needs_auxtrace_mmap;
 	struct hashmap		*per_pkg_mask;
 	int			err;
 	struct {