From 6fdd9cb700dcd84193a259bbf8f6c918c243da15 Mon Sep 17 00:00:00 2001 From: Yunlong Song Date: Wed, 18 Mar 2015 21:35:57 +0800 Subject: [PATCH] perf tools: Add the bash completion for listing subsubcommands of perf trace The bash completion does not support listing subsubcommands for 'perf trace ', so fix it. Example: Before this patch: $ perf trace $ As shown above, the subsubcommands of perf trace does not come out. After this patch: $ perf trace record As shown above, the subsubcommands of perf trace can come out now. Signed-off-by: Yunlong Song Tested-by: Arnaldo Carvalho de Melo Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Wang Nan Link: http://lkml.kernel.org/r/1426685758-25488-13-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-trace.c | 7 ++++--- tools/perf/perf-completion.sh | 9 ++++++--- 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 6969ba98ff2f..0b3b4e4984b9 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -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) { - const char * const trace_usage[] = { + const char *trace_usage[] = { "perf trace [] []", "perf trace [] -- []", "perf trace record [] []", @@ -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_END() }; + const char * const trace_subcommands[] = { "record", NULL }; int err; char bf[BUFSIZ]; @@ -2699,8 +2700,8 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) goto out; } - argc = parse_options(argc, argv, trace_options, trace_usage, - PARSE_OPT_STOP_AT_NON_OPTION); + argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands, + trace_usage, PARSE_OPT_STOP_AT_NON_OPTION); if (trace.trace_pgfaults) { trace.opts.sample_address = true; diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh index a33d2ef53ae4..bdd40350870a 100644 --- a/tools/perf/perf-completion.sh +++ b/tools/perf/perf-completion.sh @@ -120,6 +120,7 @@ __perf_prev_skip_opts () ((i--)) done } + __perf_main () { local cmd @@ -137,13 +138,15 @@ __perf_main () cmds=$($cmd --list-cmds) fi __perfcomp "$cmds" "$cur" - # List possible events for -e and --event option - elif [[ $prev == @("-e"|"--event") && $prev_skip_opts == @(record|stat|top) ]]; then + # List possible events for -e option + elif [[ $prev == @("-e"|"--event") && + $prev_skip_opts == @(record|stat|top) ]]; then evts=$($cmd list --raw-dump) __perfcomp_colon "$evts" "$cur" else # 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 $prev_skip_opts --list-cmds) __perfcomp_colon "$subcmds" "$cur" fi