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authorYunlong Song <yunlong.song@huawei.com>2015-03-18 21:35:53 +0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-03-19 13:49:39 -0300
commite24a110882949c609c5fb7625b71d8e77264257b (patch)
treec6c325af910c4b4f664e1c82c7dbb27a9f4fb34f /tools/perf
parent01b7160bc6674912f6b7043bbf58d66e62e41054 (diff)
downloadblackbird-op-linux-e24a110882949c609c5fb7625b71d8e77264257b.tar.gz
blackbird-op-linux-e24a110882949c609c5fb7625b71d8e77264257b.zip
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>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/builtin-help.c17
-rw-r--r--tools/perf/perf-completion.sh2
2 files changed, 15 insertions, 4 deletions
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index 25d20628212e..36486eade1ef 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -437,7 +437,18 @@ int cmd_help(int argc, const char **argv, const char *prefix __maybe_unused)
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 @@ int cmd_help(int argc, const char **argv, const char *prefix __maybe_unused)
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);
diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index 535ff72babc7..dbca6a66f401 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -143,7 +143,7 @@ __perf_main ()
__perfcomp_colon "$evts" "$cur"
else
# List subcommands for perf commands
- if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|data) ]]; then
+ if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|data|help) ]]; then
subcmds=$($cmd $prev_skip_opts --list-cmds)
__perfcomp_colon "$subcmds" "$cur"
fi
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