1 /* 2 * Copyright (c) 1997, 2017, 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 "memory/iterator.inline.hpp" 27 #include "memory/universe.hpp" 28 #include "oops/oop.inline.hpp" 29 #include "utilities/debug.hpp" 30 #include "utilities/globalDefinitions.hpp" 31 32 DoNothingClosure do_nothing_cl; 33 34 void CLDToOopClosure::do_cld(ClassLoaderData* cld) { 35 cld->oops_do(_oop_closure, _must_claim_cld); 36 } 37 38 void ObjectToOopClosure::do_object(oop obj) { 39 obj->oop_iterate(_cl); 40 } 41 42 void VoidClosure::do_void() { 43 ShouldNotCallThis(); 44 } 45 46 void CodeBlobToOopClosure::do_nmethod(nmethod* nm) { 47 nm->oops_do(_cl); 48 if (_fix_relocations) { 49 nm->fix_oop_relocations(); 50 } 51 } 52 53 void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) { 54 nmethod* nm = cb->as_nmethod_or_null(); 55 if (nm != NULL) { 56 do_nmethod(nm); 57 } 58 } 59 60 void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) { 61 nmethod* nm = cb->as_nmethod_or_null(); 62 if (nm != NULL && !nm->test_set_oops_do_mark()) { 63 do_nmethod(nm); 64 } 65 }