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| author |   Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2015-02-27 13:50:31 +0900 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-02-27 15:52:40 -0300 |
| commit | 0497d0a8201a38f0c95edc8a1fc0325f2f879ddb (patch) | |
| tree | 9419e197a5e45396353631d42748e6edc4560422 /tools/perf/builtin-buildid-cache.c | |
| parent | perf buildid-cache: Use pr_debug instead of verbose && pr_info (diff) | |
| download | wireguard-linux-0497d0a8201a38f0c95edc8a1fc0325f2f879ddb.tar.xz wireguard-linux-0497d0a8201a38f0c95edc8a1fc0325f2f879ddb.zip | |
perf buildid-cache: Show usage with incorrect params
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>
Diffstat (limited to 'tools/perf/builtin-buildid-cache.c')
| -rw-r--r-- | tools/perf/builtin-buildid-cache.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c index 04466c4ff9d7..d47a0cdc71c9 100644 --- a/tools/perf/builtin-buildid-cache.c +++ b/tools/perf/builtin-buildid-cache.c @@ -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; |