tools/rtla: Consolidate -e/--event option parsing

Each rtla tool duplicates parsing of -e/--event.

Migrate the option parsing from individual tools to the
common_parse_options().

Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Link: https://lore.kernel.org/r/20251209100047.2692515-6-costa.shul@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>

Author: makelinux

tools/tracing/rtla/src/common.c

@@ -53,6 +53,7 @@ static void set_signals(struct common_params *params)
  */
 int common_parse_options(int argc, char **argv, struct common_params *common)
 {
+	struct trace_events *tevent;
 	int saved_state = optind;
 	int c;
 
@@ -61,11 +62,12 @@ int common_parse_options(int argc, char **argv, struct common_params *common)
 		{"cgroup",              optional_argument,      0, 'C'},
 		{"debug",               no_argument,            0, 'D'},
 		{"duration",            required_argument,      0, 'd'},
+		{"event",               required_argument,      0, 'e'},
 		{0, 0, 0, 0}
 	};
 
 	opterr = 0;
-	c = getopt_long(argc, argv, "c:C::Dd:", long_options, NULL);
+	c = getopt_long(argc, argv, "c:C::Dd:e:", long_options, NULL);
 	opterr = 1;
 
 	switch (c) {
@@ -86,6 +88,15 @@ int common_parse_options(int argc, char **argv, struct common_params *common)
 		if (!common->duration)
 			fatal("Invalid -d duration");
 		break;
+	case 'e':
+		tevent = trace_event_alloc(optarg);
+		if (!tevent)
+			fatal("Error alloc trace event");
+
+		if (common->events)
+			tevent->next = common->events;
+		common->events = tevent;
+		break;
 	default:
 		optind = saved_state;
 		return 0;

tools/tracing/rtla/src/osnoise_hist.c

@@ -463,7 +463,6 @@ static struct common_params
 *osnoise_hist_parse_args(int argc, char *argv[])
 {
 	struct osnoise_params *params;
-	struct trace_events *tevent;
 	int retval;
 	int c;
 	char *trace_output = NULL;
@@ -493,7 +492,6 @@ static struct common_params
 			{"stop",		required_argument,	0, 's'},
 			{"stop-total",		required_argument,	0, 'S'},
 			{"trace",		optional_argument,	0, 't'},
-			{"event",		required_argument,	0, 'e'},
 			{"threshold",		required_argument,	0, 'T'},
 			{"no-header",		no_argument,		0, '0'},
 			{"no-summary",		no_argument,		0, '1'},
@@ -511,7 +509,7 @@ static struct common_params
 		if (common_parse_options(argc, argv, &params->common))
 			continue;
 
-		c = getopt_long(argc, argv, "a:b:e:E:hH:p:P:r:s:S:t::T:01234:5:6:7:",
+		c = getopt_long(argc, argv, "a:b:E:hH:p:P:r:s:S:t::T:01234:5:6:7:",
 				 long_options, NULL);
 
 		/* detect the end of the options. */
@@ -537,16 +535,6 @@ static struct common_params
 			    params->common.hist.bucket_size >= 1000000)
 				fatal("Bucket size needs to be > 0 and <= 1000000");
 			break;
-		case 'e':
-			tevent = trace_event_alloc(optarg);
-			if (!tevent)
-				fatal("Error alloc trace event");
-
-			if (params->common.events)
-				tevent->next = params->common.events;
-
-			params->common.events = tevent;
-			break;
 		case 'E':
 			params->common.hist.entries = get_llong_from_str(optarg);
 			if (params->common.hist.entries < 10 ||

tools/tracing/rtla/src/osnoise_top.c

@@ -315,7 +315,6 @@ static void osnoise_top_usage(struct osnoise_params *params)
 struct common_params *osnoise_top_parse_args(int argc, char **argv)
 {
 	struct osnoise_params *params;
-	struct trace_events *tevent;
 	int retval;
 	int c;
 	char *trace_output = NULL;
@@ -339,7 +338,6 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
 	while (1) {
 		static struct option long_options[] = {
 			{"auto",		required_argument,	0, 'a'},
-			{"event",		required_argument,	0, 'e'},
 			{"house-keeping",	required_argument,	0, 'H'},
 			{"help",		no_argument,		0, 'h'},
 			{"period",		required_argument,	0, 'p'},
@@ -362,7 +360,7 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
 		if (common_parse_options(argc, argv, &params->common))
 			continue;
 
-		c = getopt_long(argc, argv, "a:e:hH:p:P:qr:s:S:t::T:0:1:2:3:",
+		c = getopt_long(argc, argv, "a:hH:p:P:qr:s:S:t::T:0:1:2:3:",
 				 long_options, NULL);
 
 		/* Detect the end of the options. */
@@ -381,16 +379,6 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
 			if (!trace_output)
 				trace_output = "osnoise_trace.txt";
 
-			break;
-		case 'e':
-			tevent = trace_event_alloc(optarg);
-			if (!tevent)
-				fatal("Error alloc trace event");
-
-			if (params->common.events)
-				tevent->next = params->common.events;
-			params->common.events = tevent;
-
 			break;
 		case 'h':
 		case '?':

tools/tracing/rtla/src/timerlat_hist.c

@@ -761,7 +761,6 @@ static struct common_params
 *timerlat_hist_parse_args(int argc, char *argv[])
 {
 	struct timerlat_params *params;
-	struct trace_events *tevent;
 	int auto_thresh;
 	int retval;
 	int c;
@@ -805,7 +804,6 @@ static struct common_params
 			{"user-threads",	no_argument,		0, 'u'},
 			{"kernel-threads",	no_argument,		0, 'k'},
 			{"user-load",		no_argument,		0, 'U'},
-			{"event",		required_argument,	0, 'e'},
 			{"no-irq",		no_argument,		0, '0'},
 			{"no-thread",		no_argument,		0, '1'},
 			{"no-header",		no_argument,		0, '2'},
@@ -829,7 +827,7 @@ static struct common_params
 		if (common_parse_options(argc, argv, &params->common))
 			continue;
 
-		c = getopt_long(argc, argv, "a:b:e:E:hH:i:knp:P:s:t::T:uU0123456:7:8:9\1\2:\3:",
+		c = getopt_long(argc, argv, "a:b:E:hH:i:knp:P:s:t::T:uU0123456:7:8:9\1\2:\3:",
 				 long_options, NULL);
 
 		/* detect the end of the options. */
@@ -858,16 +856,6 @@ static struct common_params
 			    params->common.hist.bucket_size >= 1000000)
 				fatal("Bucket size needs to be > 0 and <= 1000000");
 			break;
-		case 'e':
-			tevent = trace_event_alloc(optarg);
-			if (!tevent)
-				fatal("Error alloc trace event");
-
-			if (params->common.events)
-				tevent->next = params->common.events;
-
-			params->common.events = tevent;
-			break;
 		case 'E':
 			params->common.hist.entries = get_llong_from_str(optarg);
 			if (params->common.hist.entries < 10 ||

tools/tracing/rtla/src/timerlat_top.c

@@ -533,7 +533,6 @@ static struct common_params
 *timerlat_top_parse_args(int argc, char **argv)
 {
 	struct timerlat_params *params;
-	struct trace_events *tevent;
 	long long auto_thresh;
 	int retval;
 	int c;
@@ -561,7 +560,6 @@ static struct common_params
 	while (1) {
 		static struct option long_options[] = {
 			{"auto",		required_argument,	0, 'a'},
-			{"event",		required_argument,	0, 'e'},
 			{"help",		no_argument,		0, 'h'},
 			{"house-keeping",	required_argument,	0, 'H'},
 			{"irq",			required_argument,	0, 'i'},
@@ -593,7 +591,7 @@ static struct common_params
 		if (common_parse_options(argc, argv, &params->common))
 			continue;
 
-		c = getopt_long(argc, argv, "a:e:hH:i:knp:P:qs:t::T:uU0:1:2:345:6:7:",
+		c = getopt_long(argc, argv, "a:hH:i:knp:P:qs:t::T:uU0:1:2:345:6:7:",
 				 long_options, NULL);
 
 		/* detect the end of the options. */
@@ -630,15 +628,6 @@ static struct common_params
 			/* set aa_only to avoid parsing the trace */
 			params->common.aa_only = 1;
 			break;
-		case 'e':
-			tevent = trace_event_alloc(optarg);
-			if (!tevent)
-				fatal("Error alloc trace event");
-
-			if (params->common.events)
-				tevent->next = params->common.events;
-			params->common.events = tevent;
-			break;
 		case 'h':
 		case '?':
 			timerlat_top_usage();