lkml.org 
[lkml]   [2013]   [Oct]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/2] perf list: Add usage
Date
Currently perf list is not very helpful if you forget the syntax:
$ perf list -h

List of pre-defined events (to be used in -e):

After:
$ perf list -h

usage: perf list [hw|sw|cache|tracepoint|pmu|event_glob]

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
---
tools/perf/builtin-list.c | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index 45000e7d4398..a5ad93206044 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -14,10 +14,21 @@
#include "util/parse-events.h"
#include "util/cache.h"
#include "util/pmu.h"
+#include "util/parse-options.h"

int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
{
int i;
+ const struct option list_options[] = {
+ OPT_END()
+ };
+ const char * const list_usage[] = {
+ "perf list [hw|sw|cache|tracepoint|pmu|event_glob]",
+ NULL
+ };
+
+ argc = parse_options(argc, argv, list_options, list_usage,
+ PARSE_OPT_STOP_AT_NON_OPTION);

setup_pager();

--
1.8.3.4 (Apple Git-47)


\
 
 \ /
  Last update: 2013-10-30 17:21    [W:0.051 / U:26.488 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site