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1 /* |
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2 * Copyright (c) 2018, 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 |
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25 #include "precompiled.hpp" |
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26 #include "gc/g1/g1BarrierSet.inline.hpp" |
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27 #include "gc/g1/g1BarrierSetRuntime.hpp" |
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28 #include "gc/g1/g1ThreadLocalData.hpp" |
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29 #include "runtime/interfaceSupport.inline.hpp" |
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30 #include "utilities/macros.hpp" |
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31 |
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32 void G1BarrierSetRuntime::write_ref_array_pre_oop_entry(oop* dst, size_t length) { |
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33 G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set()); |
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34 bs->write_ref_array_pre(dst, length, false); |
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35 } |
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36 |
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37 void G1BarrierSetRuntime::write_ref_array_pre_narrow_oop_entry(narrowOop* dst, size_t length) { |
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38 G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set()); |
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39 bs->write_ref_array_pre(dst, length, false); |
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40 } |
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41 |
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42 void G1BarrierSetRuntime::write_ref_array_post_entry(HeapWord* dst, size_t length) { |
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43 G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set()); |
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44 bs->G1BarrierSet::write_ref_array(dst, length); |
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45 } |
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46 |
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47 // G1 pre write barrier slowpath |
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48 JRT_LEAF(void, G1BarrierSetRuntime::write_ref_field_pre_entry(oopDesc* orig, JavaThread *thread)) |
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49 if (orig == NULL) { |
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50 assert(false, "should be optimized out"); |
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51 return; |
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52 } |
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53 assert(oopDesc::is_oop(orig, true /* ignore mark word */), "Error"); |
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54 // store the original value that was in the field reference |
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55 G1ThreadLocalData::satb_mark_queue(thread).enqueue(orig); |
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56 JRT_END |
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57 |
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58 // G1 post write barrier slowpath |
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59 JRT_LEAF(void, G1BarrierSetRuntime::write_ref_field_post_entry(void* card_addr, JavaThread* thread)) |
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60 G1ThreadLocalData::dirty_card_queue(thread).enqueue(card_addr); |
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61 JRT_END |