backported --emperor-procname

core/emperor.c

@@ -1324,13 +1324,21 @@ end:
 void uwsgi_emperor_start() {
 
 	if (!uwsgi.sockets && !ushared->gateways_cnt && !uwsgi.master_process) {
+		if (uwsgi.emperor_procname) {
+			uwsgi_set_processname(uwsgi.emperor_procname);
+		}
 		uwsgi_notify_ready();
 		emperor_loop();
 		// never here
 		exit(1);
 	}
 
-	uwsgi.emperor_pid = uwsgi_fork("uWSGI Emperor");
+	if (uwsgi.emperor_procname) {
+		uwsgi.emperor_pid = uwsgi_fork(uwsgi.emperor_procname);
+	}
+	else {
+		uwsgi.emperor_pid = uwsgi_fork("uWSGI Emperor");
+	}
 	if (uwsgi.emperor_pid < 0) {
 		uwsgi_error("pid()");
 		exit(1);

core/uwsgi.c

@@ -140,6 +140,7 @@ static struct uwsgi_option uwsgi_base_options[] = {
 	{"need-app", no_argument, 0, "exit if no app can be loaded", uwsgi_opt_true, &uwsgi.need_app, 0},
 	{"master", no_argument, 'M', "enable master process", uwsgi_opt_true, &uwsgi.master_process, 0},
 	{"emperor", required_argument, 0, "run the Emperor", uwsgi_opt_add_string_list, &uwsgi.emperor, 0},
+	{"emperor-procname", required_argument, 0, "set the Emperor process name", uwsgi_opt_set_str, &uwsgi.emperor_procname, 0},
 	{"emperor-freq", required_argument, 0, "set the Emperor scan frequency (default 3 seconds)", uwsgi_opt_set_int, &uwsgi.emperor_freq, 0},
 	{"emperor-required-heartbeat", required_argument, 0, "set the Emperor tolerance about heartbeats", uwsgi_opt_set_int, &uwsgi.emperor_heartbeat, 0},
 	{"emperor-pidfile", required_argument, 0, "write the Emperor pid in the specified file", uwsgi_opt_set_str, &uwsgi.emperor_pidfile, 0},

uwsgi.h

@@ -1293,6 +1293,7 @@ struct uwsgi_server {
 
 	// true if run under the emperor
 	int has_emperor;
+	char *emperor_procname;
 	int emperor_fd;
 	int emperor_queue;
 	int emperor_tyrant;