From: Ian Rogers <irogers@google.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Joshua Martinez <jrm5317@gmail.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: eranian@google.com, Joshua Martinez <joshuamart@google.com>,
Ian Rogers <irogers@google.com>
Subject: [PATCH] perf data: Correct -h output.
Date: Tue, 24 Aug 2021 13:58:29 -0700 [thread overview]
Message-ID: <20210824205829.52822-1-irogers@google.com> (raw)
From: Joshua Martinez <joshuamart@google.com>
There is currently only 1 perf data command, but supporting extra
commands was breaking the help output. Simplify for now so that the help
output is correct.
Before:
$ perf data -h
Usage: perf data [<common options>] <command> [<options>]
$ perf data
Usage:
perf data [<common options>] <command> [<options>]
Available commands:
convert - converts data file between formats
After:
$ perf data
Usage: perf data convert [<options>]
-f, --force don't complain, do it
-i, --input <file> input file name
-v, --verbose be more verbose
--all Convert all events
--to-ctf ... Convert to CTF format
--to-json ... Convert to JSON format
--tod Convert time to wall clock time
$ perf data -h
Usage: perf data convert [<options>]
-f, --force don't complain, do it
-i, --input <file> input file name
-v, --verbose be more verbose
--all Convert all events
--to-ctf ... Convert to CTF format
--to-json ... Convert to JSON format
--tod Convert time to wall clock time
Signed-off-by: Joshua Martinez <joshuamart@google.com>
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/builtin-data.c | 62 ++++++++++++---------------------------
1 file changed, 19 insertions(+), 43 deletions(-)
diff --git a/tools/perf/builtin-data.c b/tools/perf/builtin-data.c
index 15ca23675ef0..b7f9dc85a407 100644
--- a/tools/perf/builtin-data.c
+++ b/tools/perf/builtin-data.c
@@ -21,46 +21,21 @@ static struct data_cmd data_cmds[];
#define for_each_cmd(cmd) \
for (cmd = data_cmds; cmd && cmd->name; cmd++)
-static const struct option data_options[] = {
- OPT_END()
-};
-
static const char * const data_subcommands[] = { "convert", NULL };
static const char *data_usage[] = {
- "perf data [<common options>] <command> [<options>]",
+ "perf data convert [<options>]",
NULL
};
-static void print_usage(void)
-{
- struct data_cmd *cmd;
-
- printf("Usage:\n");
- printf("\t%s\n\n", data_usage[0]);
- printf("\tAvailable commands:\n");
-
- for_each_cmd(cmd) {
- printf("\t %s\t- %s\n", cmd->name, cmd->summary);
- }
-
- printf("\n");
-}
-
-static const char * const data_convert_usage[] = {
- "perf data convert [<options>]",
- NULL
+const char *to_json;
+const char *to_ctf;
+struct perf_data_convert_opts opts = {
+ .force = false,
+ .all = false,
};
-static int cmd_data_convert(int argc, const char **argv)
-{
- const char *to_json = NULL;
- const char *to_ctf = NULL;
- struct perf_data_convert_opts opts = {
- .force = false,
- .all = false,
- };
- const struct option options[] = {
+const struct option data_options[] = {
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
OPT_STRING('i', "input", &input_name, "file", "input file name"),
OPT_STRING(0, "to-json", &to_json, NULL, "Convert to JSON format"),
@@ -73,10 +48,13 @@ static int cmd_data_convert(int argc, const char **argv)
OPT_END()
};
- argc = parse_options(argc, argv, options,
- data_convert_usage, 0);
+static int cmd_data_convert(int argc, const char **argv)
+{
+
+ argc = parse_options(argc, argv, data_options,
+ data_usage, 0);
if (argc) {
- usage_with_options(data_convert_usage, options);
+ usage_with_options(data_usage, data_options);
return -1;
}
@@ -116,14 +94,13 @@ int cmd_data(int argc, const char **argv)
struct data_cmd *cmd;
const char *cmdstr;
- /* No command specified. */
- if (argc < 2)
- goto usage;
-
argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
- if (argc < 1)
- goto usage;
+
+ if (!argc) {
+ usage_with_options(data_usage, data_options);
+ return -1;
+ }
cmdstr = argv[0];
@@ -135,7 +112,6 @@ int cmd_data(int argc, const char **argv)
}
pr_err("Unknown command: %s\n", cmdstr);
-usage:
- print_usage();
+ usage_with_options(data_usage, data_options);
return -1;
}
--
2.33.0.rc2.250.ged5fa647cd-goog
next reply other threads:[~2021-08-24 20:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-24 20:58 Ian Rogers [this message]
2021-08-30 21:28 ` [PATCH] perf data: Correct -h output Arnaldo Carvalho de Melo
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