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perf buildid-cache: Show usage with incorrect params

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Show usage if no action is specified or unexpected parameter is given.
In other words, be more user friendly.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20150227045030.1999.44006.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Masami Hiramatsu 2015-02-27 13:50:31 +09:00 committed by Arnaldo Carvalho de Melo
parent cc169c7c31
commit 0497d0a820
1 changed files with 5 additions and 0 deletions
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5
tools/perf/builtin-buildid-cache.c
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@ -343,6 +343,11 @@ int cmd_buildid_cache(int argc, const char **argv,
argc = parse_options(argc, argv, buildid_cache_options,
buildid_cache_usage, 0);
if (argc || (!add_name_list_str && !kcore_filename &&
!remove_name_list_str && !purge_name_list_str &&
!missing_filename && !update_name_list_str))
usage_with_options(buildid_cache_usage, buildid_cache_options);
if (missing_filename) {
file.path = missing_filename;
file.force = force;