linux-kernel - Re: [PATCH] perf lock: subcommands should include common options

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Date:   Fri, 17 Mar 2017 11:08:34 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     changbin.du@...el.com
Cc:     peterz@...radead.org, mingo@...hat.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf lock: subcommands should include common options

Em Fri, Mar 17, 2017 at 01:53:42PM +0800, changbin.du@...el.com escreveu:
> From: Changbin Du <changbin.du@...el.com>
> 
> When I use -i option for report subcommand, it doesn't accept it.
> We need add common options using OPT_PARENT macro.
> 
> perf lock report -i lock_perf.data
>   Error: unknown switch `i'
> 
>   Usage: perf lock report [<options>]
> 
>     -f, --force           don't complain, do it
>     -k, --key <acquired>  key for sorting ...
> 
> Signed-off-by: Changbin Du <changbin.du@...el.com>
> ---
>  tools/perf/builtin-lock.c | 19 +++++++++++--------
>  1 file changed, 11 insertions(+), 8 deletions(-)
> 
> diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
> index ce3bfb4..710c551 100644
> --- a/tools/perf/builtin-lock.c
> +++ b/tools/perf/builtin-lock.c
> @@ -947,27 +947,30 @@ static int __cmd_record(int argc, const char **argv)
>  
>  int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused)
>  {
> +	const struct option lock_options[] = {
> +	OPT_STRING('i', "input", &input_name, "file", "input file name"),
> +	OPT_INCR('v', "verbose", &verbose, "be more verbose (show symbol address, etc)"),
> +	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, "dump raw trace in ASCII"),
> +	OPT_END()
> +	};
> +
>  	const struct option info_options[] = {
>  	OPT_BOOLEAN('t', "threads", &info_threads,
>  		    "dump thread list in perf.data"),
>  	OPT_BOOLEAN('m', "map", &info_map,
>  		    "map of lock instances (address:name table)"),
>  	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),

Good catch, OPT_PARENT came after 'perf lock', but you forgot 'f', I'm
adding it and renaming 'lock_options' to 'lock_input_options', ok?

> -	OPT_END()
> -	};
> -	const struct option lock_options[] = {
> -	OPT_STRING('i', "input", &input_name, "file", "input file name"),
> -	OPT_INCR('v', "verbose", &verbose, "be more verbose (show symbol address, etc)"),
> -	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, "dump raw trace in ASCII"),
> -	OPT_END()
> +	OPT_PARENT(lock_options)
>  	};
> +
>  	const struct option report_options[] = {
>  	OPT_STRING('k', "key", &sort_key, "acquired",
>  		    "key for sorting (acquired / contended / avg_wait / wait_total / wait_max / wait_min)"),
>  	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
>  	/* TODO: type */
> -	OPT_END()
> +	OPT_PARENT(lock_options)
>  	};
> +
>  	const char * const info_usage[] = {
>  		"perf lock info [<options>]",
>  		NULL
> -- 
> 2.7.4