1196
1197 // The field at _array_klass_offset is pointing to the original one dimension
1198 // higher array klass if exists. Relocate the pointer.
1199 Klass *arr = array_klass_acquire(mirror);
1200 if (arr != NULL) {
1201 Klass *reloc_arr = MetaspaceShared::get_relocated_klass(arr);
1202 log_debug(cds, heap, mirror)(
1203 "Relocate mirror metadata field at _array_klass_offset from " PTR_FORMAT " ==> " PTR_FORMAT,
1204 p2i(arr), p2i(reloc_arr));
1205 archived_mirror->metadata_field_put(_array_klass_offset, reloc_arr);
1206 }
1207 return archived_mirror;
1208 }
1209
1210 // Returns true if the mirror is updated, false if no archived mirror
1211 // data is present. After the archived mirror object is restored, the
1212 // shared klass' _has_raw_archived_mirror flag is cleared.
1213 bool java_lang_Class::restore_archived_mirror(Klass *k,
1214 Handle class_loader, Handle module,
1215 Handle protection_domain, TRAPS) {
1216 oop m = MetaspaceShared::materialize_archived_object(k->archived_java_mirror_raw_narrow());
1217
1218 if (m == NULL) {
1219 return false;
1220 }
1221
1222 log_debug(cds, mirror)("Archived mirror is: " PTR_FORMAT, p2i(m));
1223
1224 // mirror is archived, restore
1225 assert(MetaspaceShared::is_archive_object(m), "must be archived mirror object");
1226 Handle mirror(THREAD, m);
1227
1228 // The java.lang.Class field offsets were archived and reloaded from archive.
1229 // No need to put classes on the fixup_mirror_list before java.lang.Class
1230 // is loaded.
1231
1232 if (!k->is_array_klass()) {
1233 // - local static final fields with initial values were initialized at dump time
1234
1235 // create the init_lock
1236 typeArrayOop r = oopFactory::new_typeArray(T_INT, 0, CHECK_(false));
1237 set_init_lock(mirror(), r);
1238
1239 if (protection_domain.not_null()) {
1240 set_protection_domain(mirror(), protection_domain());
1241 }
1242 }
1243
1244 assert(class_loader() == k->class_loader(), "should be same");
1245 if (class_loader.not_null()) {
1246 set_class_loader(mirror(), class_loader());
1247 }
1248
1249 k->set_java_mirror(mirror);
1250 k->clear_has_raw_archived_mirror();
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1196
1197 // The field at _array_klass_offset is pointing to the original one dimension
1198 // higher array klass if exists. Relocate the pointer.
1199 Klass *arr = array_klass_acquire(mirror);
1200 if (arr != NULL) {
1201 Klass *reloc_arr = MetaspaceShared::get_relocated_klass(arr);
1202 log_debug(cds, heap, mirror)(
1203 "Relocate mirror metadata field at _array_klass_offset from " PTR_FORMAT " ==> " PTR_FORMAT,
1204 p2i(arr), p2i(reloc_arr));
1205 archived_mirror->metadata_field_put(_array_klass_offset, reloc_arr);
1206 }
1207 return archived_mirror;
1208 }
1209
1210 // Returns true if the mirror is updated, false if no archived mirror
1211 // data is present. After the archived mirror object is restored, the
1212 // shared klass' _has_raw_archived_mirror flag is cleared.
1213 bool java_lang_Class::restore_archived_mirror(Klass *k,
1214 Handle class_loader, Handle module,
1215 Handle protection_domain, TRAPS) {
1216 // Postpone restoring archived mirror until java.lang.Class is loaded. Please
1217 // see more details in SystemDictionary::resolve_preloaded_classes().
1218 if (!SystemDictionary::Class_klass_loaded()) {
1219 assert(fixup_mirror_list() != NULL, "fixup_mirror_list not initialized");
1220 fixup_mirror_list()->push(k);
1221 return true;
1222 }
1223
1224 oop m = MetaspaceShared::materialize_archived_object(k->archived_java_mirror_raw_narrow());
1225
1226 if (m == NULL) {
1227 return false;
1228 }
1229
1230 log_debug(cds, mirror)("Archived mirror is: " PTR_FORMAT, p2i(m));
1231
1232 // mirror is archived, restore
1233 assert(MetaspaceShared::is_archive_object(m), "must be archived mirror object");
1234 Handle mirror(THREAD, m);
1235
1236 if (!k->is_array_klass()) {
1237 // - local static final fields with initial values were initialized at dump time
1238
1239 // create the init_lock
1240 typeArrayOop r = oopFactory::new_typeArray(T_INT, 0, CHECK_(false));
1241 set_init_lock(mirror(), r);
1242
1243 if (protection_domain.not_null()) {
1244 set_protection_domain(mirror(), protection_domain());
1245 }
1246 }
1247
1248 assert(class_loader() == k->class_loader(), "should be same");
1249 if (class_loader.not_null()) {
1250 set_class_loader(mirror(), class_loader());
1251 }
1252
1253 k->set_java_mirror(mirror);
1254 k->clear_has_raw_archived_mirror();
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