1/* 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 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 "runtime/orderAccess.hpp" 27#include "runtime/stubRoutines.hpp" 28#include "runtime/thread.hpp" 29 30void OrderAccess::StubRoutines_fence() { 31 // Use a stub if it exists. It may not exist during bootstrap so do 32 // nothing in that case but assert if no fence code exists after threads have been created 33 void (*func)() = CAST_TO_FN_PTR(void (*)(), StubRoutines::fence_entry()); 34 35 if (func != NULL) { 36 (*func)(); 37 return; 38 } 39 assert(Threads::number_of_threads() == 0, "for bootstrap only"); 40} 41