From 42634bc7a02ead59cf2d50e60d8b8f825de8a3b0 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 23 Oct 2014 13:45:10 +0300 Subject: [PATCH] perf pmu: Let pmu's with no events show up on perf list perf list only lists PMUs with events. Add a flag to cause a PMU to be also listed separately. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1414061124-26830-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/pmu.c | 13 +++++++++++-- tools/perf/util/pmu.h | 1 + 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index e243ad962a4d..91dca604c422 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -747,15 +747,18 @@ void print_pmu_events(const char *event_glob, bool name_only) pmu = NULL; len = 0; - while ((pmu = perf_pmu__scan(pmu)) != NULL) + while ((pmu = perf_pmu__scan(pmu)) != NULL) { list_for_each_entry(alias, &pmu->aliases, list) len++; + if (pmu->selectable) + len++; + } aliases = malloc(sizeof(char *) * len); if (!aliases) return; pmu = NULL; j = 0; - while ((pmu = perf_pmu__scan(pmu)) != NULL) + while ((pmu = perf_pmu__scan(pmu)) != NULL) { list_for_each_entry(alias, &pmu->aliases, list) { char *name = format_alias(buf, sizeof(buf), pmu, alias); bool is_cpu = !strcmp(pmu->name, "cpu"); @@ -772,6 +775,12 @@ void print_pmu_events(const char *event_glob, bool name_only) aliases[j] = strdup(aliases[j]); j++; } + if (pmu->selectable) { + scnprintf(buf, sizeof(buf), "%s//", pmu->name); + aliases[j] = strdup(buf); + j++; + } + } len = j; qsort(aliases, len, sizeof(char *), cmp_string); for (j = 0; j < len; j++) { diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index fe9dfbee8eed..8092de78e818 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -18,6 +18,7 @@ struct perf_event_attr; struct perf_pmu { char *name; __u32 type; + bool selectable; struct perf_event_attr *default_config; struct cpu_map *cpus; struct list_head format; /* HEAD struct perf_pmu_format -> list */ -- 2.20.1