提交 6fdd9cb7 编写于 作者: Y Yunlong Song 提交者: Arnaldo Carvalho de Melo

perf tools: Add the bash completion for listing subsubcommands of perf trace

The bash completion does not support listing subsubcommands for 'perf
trace <TAB>', so fix it.

Example:

Before this patch:

 $ perf trace <TAB>
 $

As shown above, the subsubcommands of perf trace does not come out.

After this patch:

 $ perf trace <TAB>
 record

As shown above, the subsubcommands of perf trace can come out now.
Signed-off-by: NYunlong Song <yunlong.song@huawei.com>
Tested-by: NArnaldo 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/1426685758-25488-13-git-send-email-yunlong.song@huawei.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
上级 33ec0caf
...@@ -2609,7 +2609,7 @@ static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler) ...@@ -2609,7 +2609,7 @@ static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler)
int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
{ {
const char * const trace_usage[] = { const char *trace_usage[] = {
"perf trace [<options>] [<command>]", "perf trace [<options>] [<command>]",
"perf trace [<options>] -- <command> [<options>]", "perf trace [<options>] -- <command> [<options>]",
"perf trace record [<options>] [<command>]", "perf trace record [<options>] [<command>]",
...@@ -2684,6 +2684,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) ...@@ -2684,6 +2684,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"), OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"),
OPT_END() OPT_END()
}; };
const char * const trace_subcommands[] = { "record", NULL };
int err; int err;
char bf[BUFSIZ]; char bf[BUFSIZ];
...@@ -2699,8 +2700,8 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) ...@@ -2699,8 +2700,8 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
goto out; goto out;
} }
argc = parse_options(argc, argv, trace_options, trace_usage, argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands,
PARSE_OPT_STOP_AT_NON_OPTION); trace_usage, PARSE_OPT_STOP_AT_NON_OPTION);
if (trace.trace_pgfaults) { if (trace.trace_pgfaults) {
trace.opts.sample_address = true; trace.opts.sample_address = true;
......
...@@ -120,6 +120,7 @@ __perf_prev_skip_opts () ...@@ -120,6 +120,7 @@ __perf_prev_skip_opts ()
((i--)) ((i--))
done done
} }
__perf_main () __perf_main ()
{ {
local cmd local cmd
...@@ -137,13 +138,15 @@ __perf_main () ...@@ -137,13 +138,15 @@ __perf_main ()
cmds=$($cmd --list-cmds) cmds=$($cmd --list-cmds)
fi fi
__perfcomp "$cmds" "$cur" __perfcomp "$cmds" "$cur"
# List possible events for -e and --event option # List possible events for -e option
elif [[ $prev == @("-e"|"--event") && $prev_skip_opts == @(record|stat|top) ]]; then elif [[ $prev == @("-e"|"--event") &&
$prev_skip_opts == @(record|stat|top) ]]; then
evts=$($cmd list --raw-dump) evts=$($cmd list --raw-dump)
__perfcomp_colon "$evts" "$cur" __perfcomp_colon "$evts" "$cur"
else else
# List subcommands for perf commands # List subcommands for perf commands
if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|data|help|script|test|timechart) ]]; then if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|
|data|help|script|test|timechart|trace) ]]; then
subcmds=$($cmd $prev_skip_opts --list-cmds) subcmds=$($cmd $prev_skip_opts --list-cmds)
__perfcomp_colon "$subcmds" "$cur" __perfcomp_colon "$subcmds" "$cur"
fi fi
......
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