linux-kernel - [PATCH 3/4] perf lock: introduce --list-cmds for use by scripts

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Message-Id: <1394853474-31019-4-git-send-email-artagnon@gmail.com>
Date:	Fri, 14 Mar 2014 23:17:53 -0400
From:	Ramkumar Ramachandra <artagnon@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 3/4] perf lock: introduce --list-cmds for use by scripts

Signed-off-by: Ramkumar Ramachandra <artagnon@...il.com>
---
 tools/perf/builtin-lock.c     | 10 ++++++----
 tools/perf/perf-completion.sh |  2 +-
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index c852c7a..6148afc 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -961,8 +961,10 @@ int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused)
 		"perf lock info [<options>]",
 		NULL
 	};
-	const char * const lock_usage[] = {
-		"perf lock [<options>] {record|report|script|info}",
+	const char *const lock_subcommands[] = { "record", "report", "script",
+						 "info", NULL };
+	const char *lock_usage[] = {
+		NULL,
 		NULL
 	};
 	const char * const report_usage[] = {
@@ -976,8 +978,8 @@ int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused)
 	for (i = 0; i < LOCKHASH_SIZE; i++)
 		INIT_LIST_HEAD(lockhash_table + i);
 
-	argc = parse_options(argc, argv, lock_options, lock_usage,
-			     PARSE_OPT_STOP_AT_NON_OPTION);
+	argc = parse_options_subcommand(argc, argv, lock_options, lock_subcommands,
+					lock_usage, PARSE_OPT_STOP_AT_NON_OPTION);
 	if (!argc)
 		usage_with_options(lock_usage, lock_options);
 
diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index f44c04b..ecedab6 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -122,7 +122,7 @@ __perf_main ()
 		evts=$($cmd list --raw-dump)
 		__perfcomp_colon "$evts" "$cur"
 	# List subcommands for perf commands
-	elif [[ $prev == @(kvm|kmem|mem) ]]; then
+	elif [[ $prev == @(kvm|kmem|mem|lock) ]]; then
 		subcmds=$($cmd $prev --list-cmds)
 		__perfcomp_colon "$subcmds" "$cur"
 	# List long option names
-- 
1.9.rc0.1.g9d22d25

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