1 /* 2 * Copyright (c) 2015, 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 #include "precompiled.hpp" 25 #include "gc/z/zHeap.hpp" 26 #include "gc/z/zOopClosures.inline.hpp" 27 #include "gc/z/zOop.inline.hpp" 28 #include "memory/iterator.inline.hpp" 29 #include "oops/access.inline.hpp" 30 #include "oops/oop.inline.hpp" 31 #include "utilities/debug.hpp" 32 #include "utilities/globalDefinitions.hpp" 33 34 static void z_verify_loaded_object(const oop* p, const oop obj) { 35 guarantee(ZOop::is_good_or_null(obj), 36 "Bad oop " PTR_FORMAT " found at " PTR_FORMAT ", expected " PTR_FORMAT, 37 p2i(obj), p2i(p), p2i(ZOop::good(obj))); 38 guarantee(oopDesc::is_oop_or_null(obj), 39 "Bad object " PTR_FORMAT " found at " PTR_FORMAT, 40 p2i(obj), p2i(p)); 41 } 42 43 ZVerifyHeapOopClosure::ZVerifyHeapOopClosure(oop base) 44 : _base(base) {} 45 46 void ZVerifyHeapOopClosure::do_oop(oop* p) { 47 guarantee(ZHeap::heap()->is_in((uintptr_t)p), "oop* " PTR_FORMAT " not in heap", p2i(p)); 48 49 const oop obj = HeapAccess<ON_UNKNOWN_OOP_REF>::oop_load_at(_base, _base->field_offset(p)); 50 z_verify_loaded_object(p, obj); 51 } 52 53 void ZVerifyHeapOopClosure::do_oop(narrowOop* p) { 54 ShouldNotReachHere(); 55 } 56 57 void ZVerifyRootOopClosure::do_oop(oop* p) { 58 guarantee(!ZHeap::heap()->is_in((uintptr_t)p), "oop* " PTR_FORMAT " in heap", p2i(p)); 59 60 const oop obj = NativeAccess<>::oop_load(p); 61 z_verify_loaded_object(p, obj); 62 } 63 64 void ZVerifyRootOopClosure::do_oop(narrowOop* p) { 65 ShouldNotReachHere(); 66 } 67 68 void ZVerifyObjectClosure::do_object(oop o) { 69 ZVerifyHeapOopClosure cl(o); 70 o->oop_iterate(&cl); 71 } 72 73 // Generate Z specialized oop_oop_iterate functions. 74 SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_Z(ALL_KLASS_OOP_OOP_ITERATE_DEFN)