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Message-ID: <y4dhgsox7eak75ofci4wmv2bnfq5ijinhhcblgdcsqqy36od2z@ejvmikoxq6da>
Date: Tue, 16 Dec 2025 13:17:21 -0300
From: Wander Lairson Costa <wander@...hat.com>
To: Costa Shulyupin <costa.shul@...hat.com>
Cc: Steven Rostedt <rostedt@...dmis.org>,
Tomas Glozar <tglozar@...hat.com>, Crystal Wood <crwood@...hat.com>, John Kacur <jkacur@...hat.com>,
Ivan Pravdin <ipravdin.official@...il.com>, linux-trace-kernel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/8] tools/rtla: Consolidate -D/--debug option parsing
On Tue, Dec 09, 2025 at 12:00:43PM +0200, Costa Shulyupin wrote:
> Each rtla tool duplicates parsing of -D/--debug.
>
> Migrate the option parsing from individual tools to the
> common_parse_options().
>
> Signed-off-by: Costa Shulyupin <costa.shul@...hat.com>
> ---
> tools/tracing/rtla/src/common.c | 6 +++++-
> tools/tracing/rtla/src/osnoise_hist.c | 6 +-----
> tools/tracing/rtla/src/osnoise_top.c | 6 +-----
> tools/tracing/rtla/src/timerlat_hist.c | 6 +-----
> tools/tracing/rtla/src/timerlat_top.c | 6 +-----
> 5 files changed, 9 insertions(+), 21 deletions(-)
>
> diff --git a/tools/tracing/rtla/src/common.c b/tools/tracing/rtla/src/common.c
> index 33428fa77f9f..5bf79a9bb152 100644
> --- a/tools/tracing/rtla/src/common.c
> +++ b/tools/tracing/rtla/src/common.c
> @@ -58,11 +58,12 @@ int common_parse_options(int argc, char **argv, struct common_params *common)
> static struct option long_options[] = {
> {"cpus", required_argument, 0, 'c'},
> {"cgroup", optional_argument, 0, 'C'},
> + {"debug", no_argument, 0, 'D'},
> {0, 0, 0, 0}
> };
>
> opterr = 0;
> - c = getopt_long(argc, argv, "c:C::", long_options, NULL);
> + c = getopt_long(argc, argv, "c:C::D", long_options, NULL);
> opterr = 1;
>
> switch (c) {
> @@ -75,6 +76,9 @@ int common_parse_options(int argc, char **argv, struct common_params *common)
> common->cgroup = 1;
> common->cgroup_name = parse_optional_arg(argc, argv);
> break;
> + case 'D':
> + config_debug = 1;
> + break;
> default:
> optind = saved_state;
> return 0;
> diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c
> index 5cbe5e1f1b07..6902486fb144 100644
> --- a/tools/tracing/rtla/src/osnoise_hist.c
> +++ b/tools/tracing/rtla/src/osnoise_hist.c
> @@ -491,7 +491,6 @@ static struct common_params
> {"auto", required_argument, 0, 'a'},
> {"bucket-size", required_argument, 0, 'b'},
> {"entries", required_argument, 0, 'E'},
> - {"debug", no_argument, 0, 'D'},
> {"duration", required_argument, 0, 'd'},
> {"house-keeping", required_argument, 0, 'H'},
> {"help", no_argument, 0, 'h'},
> @@ -519,7 +518,7 @@ static struct common_params
> if (common_parse_options(argc, argv, ¶ms->common))
> continue;
>
> - c = getopt_long(argc, argv, "a:b:d:e:E:DhH:p:P:r:s:S:t::T:01234:5:6:7:",
> + c = getopt_long(argc, argv, "a:b:d:e:E:hH:p:P:r:s:S:t::T:01234:5:6:7:",
> long_options, NULL);
>
> /* detect the end of the options. */
> @@ -545,9 +544,6 @@ static struct common_params
> params->common.hist.bucket_size >= 1000000)
> fatal("Bucket size needs to be > 0 and <= 1000000");
> break;
> - case 'D':
> - config_debug = 1;
> - break;
> case 'd':
> params->common.duration = parse_seconds_duration(optarg);
> if (!params->common.duration)
> diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c
> index 35db5b73c0d7..4a61fd50b990 100644
> --- a/tools/tracing/rtla/src/osnoise_top.c
> +++ b/tools/tracing/rtla/src/osnoise_top.c
> @@ -346,7 +346,6 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
> while (1) {
> static struct option long_options[] = {
> {"auto", required_argument, 0, 'a'},
> - {"debug", no_argument, 0, 'D'},
> {"duration", required_argument, 0, 'd'},
> {"event", required_argument, 0, 'e'},
> {"house-keeping", required_argument, 0, 'H'},
> @@ -371,7 +370,7 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
> if (common_parse_options(argc, argv, ¶ms->common))
> continue;
>
> - c = getopt_long(argc, argv, "a:d:De:hH:p:P:qr:s:S:t::T:0:1:2:3:",
> + c = getopt_long(argc, argv, "a:d:e:hH:p:P:qr:s:S:t::T:0:1:2:3:",
> long_options, NULL);
>
> /* Detect the end of the options. */
> @@ -390,9 +389,6 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
> if (!trace_output)
> trace_output = "osnoise_trace.txt";
>
> - break;
> - case 'D':
> - config_debug = 1;
> break;
> case 'd':
> params->common.duration = parse_seconds_duration(optarg);
> diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c
> index 9ecab2bb0f1e..97d20e272583 100644
> --- a/tools/tracing/rtla/src/timerlat_hist.c
> +++ b/tools/tracing/rtla/src/timerlat_hist.c
> @@ -797,7 +797,6 @@ static struct common_params
> static struct option long_options[] = {
> {"auto", required_argument, 0, 'a'},
> {"bucket-size", required_argument, 0, 'b'},
> - {"debug", no_argument, 0, 'D'},
> {"entries", required_argument, 0, 'E'},
> {"duration", required_argument, 0, 'd'},
> {"house-keeping", required_argument, 0, 'H'},
> @@ -835,7 +834,7 @@ static struct common_params
> if (common_parse_options(argc, argv, ¶ms->common))
> continue;
>
> - c = getopt_long(argc, argv, "a:b:d:e:E:DhH:i:knp:P:s:t::T:uU0123456:7:8:9\1\2:\3:",
> + c = getopt_long(argc, argv, "a:b:d:e:E:hH:i:knp:P:s:t::T:uU0123456:7:8:9\1\2:\3:",
> long_options, NULL);
>
> /* detect the end of the options. */
> @@ -864,9 +863,6 @@ static struct common_params
> params->common.hist.bucket_size >= 1000000)
> fatal("Bucket size needs to be > 0 and <= 1000000");
> break;
> - case 'D':
> - config_debug = 1;
> - break;
> case 'd':
> params->common.duration = parse_seconds_duration(optarg);
> if (!params->common.duration)
> diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c
> index 6329c3a489aa..96bca67d419f 100644
> --- a/tools/tracing/rtla/src/timerlat_top.c
> +++ b/tools/tracing/rtla/src/timerlat_top.c
> @@ -566,7 +566,6 @@ static struct common_params
> while (1) {
> static struct option long_options[] = {
> {"auto", required_argument, 0, 'a'},
> - {"debug", no_argument, 0, 'D'},
> {"duration", required_argument, 0, 'd'},
> {"event", required_argument, 0, 'e'},
> {"help", no_argument, 0, 'h'},
> @@ -599,7 +598,7 @@ static struct common_params
> if (common_parse_options(argc, argv, ¶ms->common))
> continue;
>
> - c = getopt_long(argc, argv, "a:d:De:hH:i:knp:P:qs:t::T:uU0:1:2:345:6:7:",
> + c = getopt_long(argc, argv, "a:d:e:hH:i:knp:P:qs:t::T:uU0:1:2:345:6:7:",
> long_options, NULL);
>
> /* detect the end of the options. */
> @@ -636,9 +635,6 @@ static struct common_params
> /* set aa_only to avoid parsing the trace */
> params->common.aa_only = 1;
> break;
> - case 'D':
> - config_debug = 1;
> - break;
> case 'd':
> params->common.duration = parse_seconds_duration(optarg);
> if (!params->common.duration)
> --
> 2.52.0
>
Reviewed-by: Wander Lairson Costa <wander@...hat.com>
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