1 /* 2 * Copyright (c) 2005, 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 "gc_interface/collectedHeap.hpp" 27 #include "gc_interface/collectedHeap.inline.hpp" 28 #include "oops/oopsHierarchy.hpp" 29 #include "runtime/thread.inline.hpp" 30 #include "utilities/globalDefinitions.hpp" 31 32 #ifdef CHECK_UNHANDLED_OOPS 33 34 void oop::register_oop() { 35 assert (CheckUnhandledOops, "should only call when CheckUnhandledOops"); 36 if (!Universe::is_fully_initialized()) return; 37 // This gets expensive, which is why checking unhandled oops is on a switch. 38 Thread* t = ThreadLocalStorage::thread(); 39 if (t != NULL && t->is_Java_thread()) { 40 frame fr = os::current_frame(); 41 // This points to the oop creator, I guess current frame points to caller 42 assert (fr.pc(), "should point to a vm frame"); 43 t->unhandled_oops()->register_unhandled_oop(this, fr.pc()); 44 } 45 } 46 47 void oop::unregister_oop() { 48 assert (CheckUnhandledOops, "should only call when CheckUnhandledOops"); 49 if (!Universe::is_fully_initialized()) return; 50 // This gets expensive, which is why checking unhandled oops is on a switch. 51 Thread* t = ThreadLocalStorage::thread(); 52 if (t != NULL && t->is_Java_thread()) { 53 t->unhandled_oops()->unregister_unhandled_oop(this); 54 } 55 } 56 #endif // CHECK_UNHANDLED_OOPS