1 /* 2 * Copyright (c) 2018, 2019, Red Hat, Inc. 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/shenandoah/shenandoahBarrierSet.inline.hpp" 27 #include "gc/shenandoah/shenandoahBarrierSetClone.inline.hpp" 28 #include "gc/shenandoah/shenandoahRuntime.hpp" 29 #include "gc/shenandoah/shenandoahThreadLocalData.hpp" 30 #include "runtime/interfaceSupport.inline.hpp" 31 #include "oops/oop.inline.hpp" 32 #include "utilities/copy.hpp" 33 34 void ShenandoahRuntime::write_ref_array_pre_oop_entry(oop* src, oop* dst, size_t length) { 35 ShenandoahBarrierSet *bs = ShenandoahBarrierSet::barrier_set(); 36 bs->arraycopy_pre(src, dst, length); 37 } 38 39 void ShenandoahRuntime::write_ref_array_pre_narrow_oop_entry(narrowOop* src, narrowOop* dst, size_t length) { 40 ShenandoahBarrierSet *bs = ShenandoahBarrierSet::barrier_set(); 41 bs->arraycopy_pre(src, dst, length); 42 } 43 44 void ShenandoahRuntime::write_ref_array_pre_duinit_oop_entry(oop* src, oop* dst, size_t length) { 45 ShenandoahBarrierSet *bs = ShenandoahBarrierSet::barrier_set(); 46 bs->arraycopy_update(src, length); 47 } 48 49 void ShenandoahRuntime::write_ref_array_pre_duinit_narrow_oop_entry(narrowOop* src, narrowOop* dst, size_t length) { 50 ShenandoahBarrierSet *bs = ShenandoahBarrierSet::barrier_set(); 51 bs->arraycopy_update(src, length); 52 } 53 54 // Shenandoah pre write barrier slowpath 55 JRT_LEAF(void, ShenandoahRuntime::write_ref_field_pre_entry(oopDesc* orig, JavaThread *thread)) 56 if (orig == NULL) { 57 assert(false, "should be optimized out"); 58 return; 59 } 60 shenandoah_assert_correct(NULL, orig); 61 // store the original value that was in the field reference 62 assert(ShenandoahThreadLocalData::satb_mark_queue(thread).is_active(), "Shouldn't be here otherwise"); 63 ShenandoahThreadLocalData::satb_mark_queue(thread).enqueue_known_active(orig); 64 JRT_END 65 66 JRT_LEAF(oopDesc*, ShenandoahRuntime::load_reference_barrier(oopDesc* src, oop* load_addr)) 67 return ShenandoahBarrierSet::barrier_set()->load_reference_barrier_mutator(src, load_addr); 68 JRT_END 69 70 JRT_LEAF(oopDesc*, ShenandoahRuntime::load_reference_barrier_narrow(oopDesc* src, narrowOop* load_addr)) 71 return ShenandoahBarrierSet::barrier_set()->load_reference_barrier_mutator(src, load_addr); 72 JRT_END 73 74 // Shenandoah clone barrier: makes sure that references point to to-space 75 // in cloned objects. 76 JRT_LEAF(void, ShenandoahRuntime::shenandoah_clone_barrier(oopDesc* src)) 77 oop s = oop(src); 78 shenandoah_assert_correct(NULL, s); 79 ShenandoahBarrierSet::barrier_set()->clone_barrier(s); 80 JRT_END 81 82 JRT_LEAF(oopDesc*, ShenandoahRuntime::load_reference_barrier_native(oopDesc * src, oop* load_addr)) 83 return (oopDesc*) ShenandoahBarrierSet::barrier_set()->load_reference_barrier_native(oop(src), load_addr); 84 JRT_END