nl80211: use nla_put_u64_64bit() for the remaining u64 attributes

[cascardo/linux.git] / tools / perf / builtin-evlist.c

diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c
index f4d6251..8a31f51 100644 (file)
--- a/tools/perf/builtin-evlist.c
+++ b/tools/perf/builtin-evlist.c
@@ -12,7 +12,7 @@
 #include "util/evlist.h"
 #include "util/evsel.h"
 #include "util/parse-events.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/session.h"
 #include "util/data.h"
 #include "util/debug.h"
@@ -26,14 +26,22 @@ static int __cmd_evlist(const char *file_name, struct perf_attr_details *details
                .mode = PERF_DATA_MODE_READ,
                .force = details->force,
        };
+       bool has_tracepoint = false;
 
        session = perf_session__new(&file, 0, NULL);
        if (session == NULL)
                return -1;
 
-       evlist__for_each(session->evlist, pos)
+       evlist__for_each(session->evlist, pos) {
                perf_evsel__fprintf(pos, details, stdout);
 
+               if (pos->attr.type == PERF_TYPE_TRACEPOINT)
+                       has_tracepoint = true;
+       }
+
+       if (has_tracepoint && !details->trace_fields)
+               printf("# Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events\n");
+
        perf_session__delete(session);
        return 0;
 }
@@ -49,6 +57,7 @@ int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused)
        OPT_BOOLEAN('g', "group", &details.event_group,
                    "Show event group information"),
        OPT_BOOLEAN('f', "force", &details.force, "don't complain, do it"),
+       OPT_BOOLEAN(0, "trace-fields", &details.trace_fields, "Show tracepoint fields"),
        OPT_END()
        };
        const char * const evlist_usage[] = {