+static int target_add_default_dependencies(Target *t) {
+ Iterator i;
+ Unit *other;
+ int r;
+
+ /* Imply ordering for requirement dependencies on target
+ * units. Note that when the user created a contradicting
+ * ordering manually we won't add anything in here to make
+ * sure we don't create a loop. */
+
+ SET_FOREACH(other, t->meta.dependencies[UNIT_REQUIRES], i)
+ if (!set_get(t->meta.dependencies[UNIT_BEFORE], other))
+ if ((r = unit_add_dependency(UNIT(t), UNIT_AFTER, other, true)) < 0)
+ return r;
+ SET_FOREACH(other, t->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i)
+ if (!set_get(t->meta.dependencies[UNIT_BEFORE], other))
+ if ((r = unit_add_dependency(UNIT(t), UNIT_AFTER, other, true)) < 0)
+ return r;
+ SET_FOREACH(other, t->meta.dependencies[UNIT_WANTS], i)
+ if (!set_get(t->meta.dependencies[UNIT_BEFORE], other))
+ if ((r = unit_add_dependency(UNIT(t), UNIT_AFTER, other, true)) < 0)
+ return r;
+
+ /* Make sure targets are unloaded on shutdown */
+ return unit_add_dependency_by_name(UNIT(t), UNIT_CONFLICTED_BY, SPECIAL_SHUTDOWN_TARGET, NULL, true);
+}
+
+static int target_add_getty_dependencies(Target *t) {
+ char *n;
+ int r;
+
+ assert(t);
+
+ if (!unit_has_name(UNIT(t), SPECIAL_GETTY_TARGET))
+ return 0;
+
+ /* Automatically add in a serial getty on the kernel
+ * console */
+ if (t->meta.manager->console) {
+ log_debug("Automatically adding serial getty for %s", t->meta.manager->console);
+ if (!(n = unit_name_replace_instance(SPECIAL_SERIAL_GETTY_SERVICE, t->meta.manager->console)))
+ return -ENOMEM;
+
+ r = unit_add_two_dependencies_by_name(UNIT(t), UNIT_AFTER, UNIT_WANTS, n, NULL, true);
+ free(n);
+
+ if (r < 0)
+ return r;
+ }
+
+ /* Automatically add in a serial getty on the first
+ * virtualizer console */
+ if (access("/sys/class/tty/hvc0", F_OK) == 0) {
+ log_debug("Automatic adding serial getty for hvc0");
+ if (!(n = unit_name_replace_instance(SPECIAL_SERIAL_GETTY_SERVICE, "hvc0")))
+ return -ENOMEM;
+
+ r = unit_add_two_dependencies_by_name(UNIT(t), UNIT_AFTER, UNIT_WANTS, n, NULL, true);
+ free(n);
+
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int target_load(Unit *u) {
+ Target *t = TARGET(u);
+ int r;
+
+ assert(t);
+
+ if ((r = unit_load_fragment_and_dropin(u)) < 0)
+ return r;
+
+ /* This is a new unit? Then let's add in some extras */
+ if (u->meta.load_state == UNIT_LOADED) {
+ if (u->meta.default_dependencies)
+ if ((r = target_add_default_dependencies(t)) < 0)
+ return r;
+
+ if ((r = target_add_getty_dependencies(t)) < 0)
+ return r;
+ }
+
+ return 0;
+}
+