1 /* |
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2 * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 #include "precompiled.hpp" |
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25 #include "gc/z/zHeap.hpp" |
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26 #include "gc/z/zOopClosures.inline.hpp" |
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27 #include "gc/z/zOop.inline.hpp" |
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28 #include "memory/iterator.inline.hpp" |
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29 #include "oops/access.inline.hpp" |
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30 #include "oops/oop.inline.hpp" |
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31 #include "runtime/safepoint.hpp" |
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32 #include "utilities/debug.hpp" |
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33 #include "utilities/globalDefinitions.hpp" |
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34 |
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35 void ZVerifyOopClosure::do_oop(oop* p) { |
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36 guarantee(SafepointSynchronize::is_at_safepoint(), "Must be at a safepoint"); |
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37 guarantee(ZGlobalPhase == ZPhaseMarkCompleted, "Invalid phase"); |
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38 guarantee(!ZResurrection::is_blocked(), "Invalid phase"); |
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39 |
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40 const oop o = RawAccess<>::oop_load(p); |
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41 if (o != NULL) { |
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42 const uintptr_t addr = ZOop::to_address(o); |
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43 const uintptr_t good_addr = ZAddress::good(addr); |
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44 guarantee(ZAddress::is_good(addr) || ZAddress::is_finalizable_good(addr), |
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45 "Bad oop " PTR_FORMAT " found at " PTR_FORMAT ", expected " PTR_FORMAT, |
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46 addr, p2i(p), good_addr); |
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47 guarantee(oopDesc::is_oop(ZOop::from_address(good_addr)), |
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48 "Bad object " PTR_FORMAT " found at " PTR_FORMAT, |
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49 addr, p2i(p)); |
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50 } |
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51 } |
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52 |
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53 void ZVerifyOopClosure::do_oop(narrowOop* p) { |
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54 ShouldNotReachHere(); |
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55 } |
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56 |
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57 void ZVerifyObjectClosure::do_object(oop o) { |
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58 ZVerifyOopClosure cl; |
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59 o->oop_iterate(&cl); |
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60 } |
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