1 /* 2 * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "gc/shared/gc.hpp" 27 #include "runtime/globals.hpp" 28 #include "runtime/globals_extension.hpp" 29 #include "runtime/java.hpp" 30 31 GC* GC::gc() { 32 assert(_gc != NULL, "GC not yet created"); 33 return _gc; 34 } 35 36 bool GC::is_initialized() { 37 return _gc != NULL; 38 } 39 40 void GC::select_gc() { 41 if (!gc_selected()) { 42 select_gc_ergonomically(); 43 if (!gc_selected()) { 44 vm_exit_during_initialization("Garbage collector not selected (default collector explicitly disabled)", NULL); 45 } 46 } 47 } 48 49 50 void GC::initialize_flags() { 51 // Default does nothing. 52 }