truffle: src/share/vm/memory/genOopClosures.inline.hpp annotate

annotate src/share/vm/memory/genOopClosures.inline.hpp @ 12355:cefad50507d8

Merge with hs25-b53

author	Gilles Duboscq <duboscq@ssw.jku.at>
date	Fri, 11 Oct 2013 10:38:03 +0200
parents	da91efe96a93
children	284953caf7aa

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 845 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 845 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 845 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	25 #ifndef SHARE_VM_MEMORY_GENOOPCLOSURES_INLINE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	26 #define SHARE_VM_MEMORY_GENOOPCLOSURES_INLINE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	27
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	28 #include "memory/cardTableRS.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	29 #include "memory/defNewGeneration.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	30 #include "memory/genCollectedHeap.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	31 #include "memory/genOopClosures.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	32 #include "memory/genRemSet.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	33 #include "memory/generation.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	34 #include "memory/sharedHeap.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	35 #include "memory/space.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	36
0 a61af66fc99e Initial load duke parents: diff changeset	37 inline OopsInGenClosure::OopsInGenClosure(Generation* gen) :
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	38 ExtendedOopClosure(gen->ref_processor()), _orig_gen(gen), _rs(NULL) {
0 a61af66fc99e Initial load duke parents: diff changeset	39 set_generation(gen);
a61af66fc99e Initial load duke parents: diff changeset	40 }
a61af66fc99e Initial load duke parents: diff changeset	41
a61af66fc99e Initial load duke parents: diff changeset	42 inline void OopsInGenClosure::set_generation(Generation* gen) {
a61af66fc99e Initial load duke parents: diff changeset	43 _gen = gen;
a61af66fc99e Initial load duke parents: diff changeset	44 _gen_boundary = _gen->reserved().start();
a61af66fc99e Initial load duke parents: diff changeset	45 // Barrier set for the heap, must be set after heap is initialized
a61af66fc99e Initial load duke parents: diff changeset	46 if (_rs == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	47 GenRemSet* rs = SharedHeap::heap()->rem_set();
a61af66fc99e Initial load duke parents: diff changeset	48 assert(rs->rs_kind() == GenRemSet::CardTable, "Wrong rem set kind");
a61af66fc99e Initial load duke parents: diff changeset	49 _rs = (CardTableRS*)rs;
a61af66fc99e Initial load duke parents: diff changeset	50 }
a61af66fc99e Initial load duke parents: diff changeset	51 }
a61af66fc99e Initial load duke parents: diff changeset	52
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	53 template <class T> inline void OopsInGenClosure::do_barrier(T* p) {
0 a61af66fc99e Initial load duke parents: diff changeset	54 assert(generation()->is_in_reserved(p), "expected ref in generation");
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	55 T heap_oop = oopDesc::load_heap_oop(p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	56 assert(!oopDesc::is_null(heap_oop), "expected non-null oop");
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	57 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
0 a61af66fc99e Initial load duke parents: diff changeset	58 // If p points to a younger generation, mark the card.
a61af66fc99e Initial load duke parents: diff changeset	59 if ((HeapWord*)obj < _gen_boundary) {
a61af66fc99e Initial load duke parents: diff changeset	60 _rs->inline_write_ref_field_gc(p, obj);
a61af66fc99e Initial load duke parents: diff changeset	61 }
a61af66fc99e Initial load duke parents: diff changeset	62 }
a61af66fc99e Initial load duke parents: diff changeset	63
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	64 template <class T> inline void OopsInGenClosure::par_do_barrier(T* p) {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	65 assert(generation()->is_in_reserved(p), "expected ref in generation");
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	66 T heap_oop = oopDesc::load_heap_oop(p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	67 assert(!oopDesc::is_null(heap_oop), "expected non-null oop");
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	68 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	69 // If p points to a younger generation, mark the card.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	70 if ((HeapWord*)obj < gen_boundary()) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	71 rs()->write_ref_field_gc_par(p, obj);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	72 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	73 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	74
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	75 inline void OopsInKlassOrGenClosure::do_klass_barrier() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	76 assert(_scanned_klass != NULL, "Must be");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	77 _scanned_klass->record_modified_oops();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	78 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	79
0 a61af66fc99e Initial load duke parents: diff changeset	80 // NOTE! Any changes made here should also be made
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	81 // in FastScanClosure::do_oop_work()
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	82 template <class T> inline void ScanClosure::do_oop_work(T* p) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	83 T heap_oop = oopDesc::load_heap_oop(p);
0 a61af66fc99e Initial load duke parents: diff changeset	84 // Should we copy the obj?
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	85 if (!oopDesc::is_null(heap_oop)) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	86 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
0 a61af66fc99e Initial load duke parents: diff changeset	87 if ((HeapWord*)obj < _boundary) {
a61af66fc99e Initial load duke parents: diff changeset	88 assert(!_g->to()->is_in_reserved(obj), "Scanning field twice?");
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	89 oop new_obj = obj->is_forwarded() ? obj->forwardee()
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	90 : _g->copy_to_survivor_space(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	91 oopDesc::encode_store_heap_oop_not_null(p, new_obj);
0 a61af66fc99e Initial load duke parents: diff changeset	92 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	93
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	94 if (is_scanning_a_klass()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	95 do_klass_barrier();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	96 } else if (_gc_barrier) {
0 a61af66fc99e Initial load duke parents: diff changeset	97 // Now call parent closure
a61af66fc99e Initial load duke parents: diff changeset	98 do_barrier(p);
a61af66fc99e Initial load duke parents: diff changeset	99 }
a61af66fc99e Initial load duke parents: diff changeset	100 }
a61af66fc99e Initial load duke parents: diff changeset	101 }
a61af66fc99e Initial load duke parents: diff changeset	102
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	103 inline void ScanClosure::do_oop_nv(oop* p) { ScanClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	104 inline void ScanClosure::do_oop_nv(narrowOop* p) { ScanClosure::do_oop_work(p); }
0 a61af66fc99e Initial load duke parents: diff changeset	105
a61af66fc99e Initial load duke parents: diff changeset	106 // NOTE! Any changes made here should also be made
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	107 // in ScanClosure::do_oop_work()
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	108 template <class T> inline void FastScanClosure::do_oop_work(T* p) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	109 T heap_oop = oopDesc::load_heap_oop(p);
0 a61af66fc99e Initial load duke parents: diff changeset	110 // Should we copy the obj?
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	111 if (!oopDesc::is_null(heap_oop)) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	112 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
0 a61af66fc99e Initial load duke parents: diff changeset	113 if ((HeapWord*)obj < _boundary) {
a61af66fc99e Initial load duke parents: diff changeset	114 assert(!_g->to()->is_in_reserved(obj), "Scanning field twice?");
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	115 oop new_obj = obj->is_forwarded() ? obj->forwardee()
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	116 : _g->copy_to_survivor_space(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	117 oopDesc::encode_store_heap_oop_not_null(p, new_obj);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	118 if (is_scanning_a_klass()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	119 do_klass_barrier();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	120 } else if (_gc_barrier) {
0 a61af66fc99e Initial load duke parents: diff changeset	121 // Now call parent closure
a61af66fc99e Initial load duke parents: diff changeset	122 do_barrier(p);
a61af66fc99e Initial load duke parents: diff changeset	123 }
a61af66fc99e Initial load duke parents: diff changeset	124 }
a61af66fc99e Initial load duke parents: diff changeset	125 }
a61af66fc99e Initial load duke parents: diff changeset	126 }
a61af66fc99e Initial load duke parents: diff changeset	127
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	128 inline void FastScanClosure::do_oop_nv(oop* p) { FastScanClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	129 inline void FastScanClosure::do_oop_nv(narrowOop* p) { FastScanClosure::do_oop_work(p); }
0 a61af66fc99e Initial load duke parents: diff changeset	130
a61af66fc99e Initial load duke parents: diff changeset	131 // Note similarity to ScanClosure; the difference is that
a61af66fc99e Initial load duke parents: diff changeset	132 // the barrier set is taken care of outside this closure.
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	133 template <class T> inline void ScanWeakRefClosure::do_oop_work(T* p) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	134 assert(!oopDesc::is_null(*p), "null weak reference?");
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	135 oop obj = oopDesc::load_decode_heap_oop_not_null(p);
0 a61af66fc99e Initial load duke parents: diff changeset	136 // weak references are sometimes scanned twice; must check
a61af66fc99e Initial load duke parents: diff changeset	137 // that to-space doesn't already contain this object
a61af66fc99e Initial load duke parents: diff changeset	138 if ((HeapWord*)obj < _boundary && !_g->to()->is_in_reserved(obj)) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	139 oop new_obj = obj->is_forwarded() ? obj->forwardee()
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	140 : _g->copy_to_survivor_space(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	141 oopDesc::encode_store_heap_oop_not_null(p, new_obj);
0 a61af66fc99e Initial load duke parents: diff changeset	142 }
a61af66fc99e Initial load duke parents: diff changeset	143 }
a61af66fc99e Initial load duke parents: diff changeset	144
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	145 inline void ScanWeakRefClosure::do_oop_nv(oop* p) { ScanWeakRefClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	146 inline void ScanWeakRefClosure::do_oop_nv(narrowOop* p) { ScanWeakRefClosure::do_oop_work(p); }
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	147
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	148 #endif // SHARE_VM_MEMORY_GENOOPCLOSURES_INLINE_HPP

Mercurial > hg > truffle

annotate src/share/vm/memory/genOopClosures.inline.hpp @ 12355:cefad50507d8