perf tools: Add the bash completion for listing subsubcommands of perf timechart
The bash completion does not support listing subsubcommands for 'perf
timechart <TAB>', so fix it.
Example:
Before this patch:
$ perf timechart <TAB>
$
As shown above, the subsubcommands of perf timechart does not come out.
After this patch:
$ perf timechart <TAB>
record
As shown above, the subsubcommands of perf timechart 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/1426685758-25488-12-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 51440d1..494b3bb 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -1958,7 +1958,8 @@
parse_time),
OPT_END()
};
- const char * const timechart_usage[] = {
+ const char * const timechart_subcommands[] = { "record", NULL };
+ const char *timechart_usage[] = {
"perf timechart [<options>] {record}",
NULL
};
@@ -1976,8 +1977,8 @@
"perf timechart record [<options>]",
NULL
};
- argc = parse_options(argc, argv, timechart_options, timechart_usage,
- PARSE_OPT_STOP_AT_NON_OPTION);
+ argc = parse_options_subcommand(argc, argv, timechart_options, timechart_subcommands,
+ timechart_usage, PARSE_OPT_STOP_AT_NON_OPTION);
if (tchart.power_only && tchart.tasks_only) {
pr_err("-P and -T options cannot be used at the same time.\n");