perf tools: Add the bash completion for listing subsubcommands of perf help
The bash completion does not support listing subsubcommands for 'perf
help <TAB>', so fix it.
Example:
Before this patch:
$ perf help <TAB>
$
As shown above, the subsubcommands of perf help does not come out.
After this patch:
$ perf help <TAB>
annotate buildid-cache data evlist inject
kvm lock probe report script
test top
bench buildid-list diff help kmem
list mem record sched stat
timechart trace
As shown above, the subsubcommands of perf help can come out now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-9-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index 25d2062..36486ea 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -437,7 +437,18 @@
HELP_FORMAT_INFO),
OPT_END(),
};
- const char * const builtin_help_usage[] = {
+ const char * const builtin_help_subcommands[] = {
+ "buildid-cache", "buildid-list", "diff", "evlist", "help", "list",
+ "record", "report", "bench", "stat", "timechart", "top", "annotate",
+ "script", "sched", "kmem", "lock", "kvm", "test", "inject", "mem", "data",
+#ifdef HAVE_LIBELF_SUPPORT
+ "probe",
+#endif
+#ifdef HAVE_LIBAUDIT_SUPPORT
+ "trace",
+#endif
+ NULL };
+ const char *builtin_help_usage[] = {
"perf help [--all] [--man|--web|--info] [command]",
NULL
};
@@ -448,8 +459,8 @@
perf_config(perf_help_config, &help_format);
- argc = parse_options(argc, argv, builtin_help_options,
- builtin_help_usage, 0);
+ argc = parse_options_subcommand(argc, argv, builtin_help_options,
+ builtin_help_subcommands, builtin_help_usage, 0);
if (show_all) {
printf("\n usage: %s\n\n", perf_usage_string);