truffle: src/share/vm/oops/instanceRefKlass.cpp annotate

annotate src/share/vm/oops/instanceRefKlass.cpp @ 196:d1605aabd0a1 jdk7-b30

6719955: Update copyright year Summary: Update copyright year for files that have been modified in 2008 Reviewed-by: ohair, tbell

author	xdono
date	Wed, 02 Jul 2008 12:55:16 -0700
parents	ba764ed4b6f2
children	1ee8caae33af

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
196 d1605aabd0a1 6719955: Update copyright year xdono parents: 113 diff changeset	2 * Copyright 1997-2008 Sun Microsystems, Inc. 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 *
a61af66fc99e Initial load duke parents: diff changeset	19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
a61af66fc99e Initial load duke parents: diff changeset	20 * CA 95054 USA or visit www.sun.com if you need additional information or
a61af66fc99e Initial load duke parents: diff changeset	21 * have any questions.
a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
a61af66fc99e Initial load duke parents: diff changeset	25 # include "incls/_precompiled.incl"
a61af66fc99e Initial load duke parents: diff changeset	26 # include "incls/_instanceRefKlass.cpp.incl"
a61af66fc99e Initial load duke parents: diff changeset	27
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	28 template <class T>
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	29 static void specialized_oop_follow_contents(instanceRefKlass* ref, oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	30 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	31 oop referent = oopDesc::load_decode_heap_oop(referent_addr);
0 a61af66fc99e Initial load duke parents: diff changeset	32 debug_only(
a61af66fc99e Initial load duke parents: diff changeset	33 if(TraceReferenceGC && PrintGCDetails) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	34 gclog_or_tty->print_cr("instanceRefKlass::oop_follow_contents " INTPTR_FORMAT, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	35 }
a61af66fc99e Initial load duke parents: diff changeset	36 )
a61af66fc99e Initial load duke parents: diff changeset	37 if (referent != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	38 if (!referent->is_gc_marked() &&
a61af66fc99e Initial load duke parents: diff changeset	39 MarkSweep::ref_processor()->
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	40 discover_reference(obj, ref->reference_type())) {
0 a61af66fc99e Initial load duke parents: diff changeset	41 // reference already enqueued, referent will be traversed later
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	42 ref->instanceKlass::oop_follow_contents(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	43 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	44 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	45 gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	46 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	47 )
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	48 return;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	49 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	50 // treat referent as normal oop
0 a61af66fc99e Initial load duke parents: diff changeset	51 debug_only(
a61af66fc99e Initial load duke parents: diff changeset	52 if(TraceReferenceGC && PrintGCDetails) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	53 gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	54 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	55 )
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	56 MarkSweep::mark_and_push(referent_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	57 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	58 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	59 // treat next as normal oop. next is a link in the pending list.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	60 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	61 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	62 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	63 gclog_or_tty->print_cr(" Process next as normal " INTPTR_FORMAT, next_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	64 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	65 )
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	66 MarkSweep::mark_and_push(next_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	67 ref->instanceKlass::oop_follow_contents(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	68 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	69
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	70 void instanceRefKlass::oop_follow_contents(oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	71 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	72 specialized_oop_follow_contents<narrowOop>(this, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	73 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	74 specialized_oop_follow_contents<oop>(this, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	75 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	76 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	77
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	78 #ifndef SERIALGC
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	79 template <class T>
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	80 static void specialized_oop_follow_contents(instanceRefKlass* ref,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	81 ParCompactionManager* cm,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	82 oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	83 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	84 oop referent = oopDesc::load_decode_heap_oop(referent_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	85 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	86 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	87 gclog_or_tty->print_cr("instanceRefKlass::oop_follow_contents " INTPTR_FORMAT, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	88 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	89 )
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	90 if (referent != NULL) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	91 if (PSParallelCompact::mark_bitmap()->is_unmarked(referent) &&
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	92 PSParallelCompact::ref_processor()->
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	93 discover_reference(obj, ref->reference_type())) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	94 // reference already enqueued, referent will be traversed later
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	95 ref->instanceKlass::oop_follow_contents(cm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	96 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	97 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	98 gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	99 }
a61af66fc99e Initial load duke parents: diff changeset	100 )
a61af66fc99e Initial load duke parents: diff changeset	101 return;
a61af66fc99e Initial load duke parents: diff changeset	102 } else {
a61af66fc99e Initial load duke parents: diff changeset	103 // treat referent as normal oop
a61af66fc99e Initial load duke parents: diff changeset	104 debug_only(
a61af66fc99e Initial load duke parents: diff changeset	105 if(TraceReferenceGC && PrintGCDetails) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	106 gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	107 }
a61af66fc99e Initial load duke parents: diff changeset	108 )
a61af66fc99e Initial load duke parents: diff changeset	109 PSParallelCompact::mark_and_push(cm, referent_addr);
a61af66fc99e Initial load duke parents: diff changeset	110 }
a61af66fc99e Initial load duke parents: diff changeset	111 }
a61af66fc99e Initial load duke parents: diff changeset	112 // treat next as normal oop. next is a link in the pending list.
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	113 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
0 a61af66fc99e Initial load duke parents: diff changeset	114 debug_only(
a61af66fc99e Initial load duke parents: diff changeset	115 if(TraceReferenceGC && PrintGCDetails) {
a61af66fc99e Initial load duke parents: diff changeset	116 gclog_or_tty->print_cr(" Process next as normal " INTPTR_FORMAT, next_addr);
a61af66fc99e Initial load duke parents: diff changeset	117 }
a61af66fc99e Initial load duke parents: diff changeset	118 )
a61af66fc99e Initial load duke parents: diff changeset	119 PSParallelCompact::mark_and_push(cm, next_addr);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	120 ref->instanceKlass::oop_follow_contents(cm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	121 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	122
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	123 void instanceRefKlass::oop_follow_contents(ParCompactionManager* cm,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	124 oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	125 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	126 specialized_oop_follow_contents<narrowOop>(this, cm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	127 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	128 specialized_oop_follow_contents<oop>(this, cm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	129 }
0 a61af66fc99e Initial load duke parents: diff changeset	130 }
a61af66fc99e Initial load duke parents: diff changeset	131 #endif // SERIALGC
a61af66fc99e Initial load duke parents: diff changeset	132
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	133 #ifdef ASSERT
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	134 template <class T> void trace_reference_gc(const char *s, oop obj,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	135 T* referent_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	136 T* next_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	137 T* discovered_addr) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	138 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	139 gclog_or_tty->print_cr("%s obj " INTPTR_FORMAT, s, (address)obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	140 gclog_or_tty->print_cr(" referent_addr/* " INTPTR_FORMAT " / "
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	141 INTPTR_FORMAT, referent_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	142 referent_addr ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	143 (address)oopDesc::load_decode_heap_oop(referent_addr) : NULL);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	144 gclog_or_tty->print_cr(" next_addr/* " INTPTR_FORMAT " / "
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	145 INTPTR_FORMAT, next_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	146 next_addr ? (address)oopDesc::load_decode_heap_oop(next_addr) : NULL);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	147 gclog_or_tty->print_cr(" discovered_addr/* " INTPTR_FORMAT " / "
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	148 INTPTR_FORMAT, discovered_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	149 discovered_addr ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	150 (address)oopDesc::load_decode_heap_oop(discovered_addr) : NULL);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	151 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	152 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	153 #endif
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	154
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	155 template <class T> void specialized_oop_adjust_pointers(instanceRefKlass *ref, oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	156 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	157 MarkSweep::adjust_pointer(referent_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	158 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	159 MarkSweep::adjust_pointer(next_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	160 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	161 MarkSweep::adjust_pointer(discovered_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	162 debug_only(trace_reference_gc("instanceRefKlass::oop_adjust_pointers", obj,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	163 referent_addr, next_addr, discovered_addr);)
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	164 }
0 a61af66fc99e Initial load duke parents: diff changeset	165
a61af66fc99e Initial load duke parents: diff changeset	166 int instanceRefKlass::oop_adjust_pointers(oop obj) {
a61af66fc99e Initial load duke parents: diff changeset	167 int size = size_helper();
a61af66fc99e Initial load duke parents: diff changeset	168 instanceKlass::oop_adjust_pointers(obj);
a61af66fc99e Initial load duke parents: diff changeset	169
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	170 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	171 specialized_oop_adjust_pointers<narrowOop>(this, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	172 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	173 specialized_oop_adjust_pointers<oop>(this, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	174 }
a61af66fc99e Initial load duke parents: diff changeset	175 return size;
a61af66fc99e Initial load duke parents: diff changeset	176 }
a61af66fc99e Initial load duke parents: diff changeset	177
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	178 #define InstanceRefKlass_SPECIALIZED_OOP_ITERATE(T, nv_suffix, contains) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	179 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	180 oop referent = oopDesc::load_decode_heap_oop(referent_addr); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	181 if (referent != NULL && contains(referent_addr)) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	182 ReferenceProcessor* rp = closure->_ref_processor; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	183 if (!referent->is_gc_marked() && (rp != NULL) && \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	184 rp->discover_reference(obj, reference_type())) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	185 return size; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	186 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	187 /* treat referent as normal oop */ \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	188 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk);\
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	189 closure->do_oop##nv_suffix(referent_addr); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	190 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	191 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	192 /* treat next as normal oop */ \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	193 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	194 if (contains(next_addr)) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	195 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	196 closure->do_oop##nv_suffix(next_addr); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	197 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	198 return size; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	199
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	200
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	201 template <class T> bool contains(T *t) { return true; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	202
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	203 // Macro to define instanceRefKlass::oop_oop_iterate for virtual/nonvirtual for
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	204 // all closures. Macros calling macros above for each oop size.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	205
0 a61af66fc99e Initial load duke parents: diff changeset	206 #define InstanceRefKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
a61af66fc99e Initial load duke parents: diff changeset	207 \
a61af66fc99e Initial load duke parents: diff changeset	208 int instanceRefKlass:: \
a61af66fc99e Initial load duke parents: diff changeset	209 oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \
a61af66fc99e Initial load duke parents: diff changeset	210 /* Get size before changing pointers */ \
a61af66fc99e Initial load duke parents: diff changeset	211 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
a61af66fc99e Initial load duke parents: diff changeset	212 \
a61af66fc99e Initial load duke parents: diff changeset	213 int size = instanceKlass::oop_oop_iterate##nv_suffix(obj, closure); \
a61af66fc99e Initial load duke parents: diff changeset	214 \
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	215 if (UseCompressedOops) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	216 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, contains); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	217 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	218 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, contains); \
0 a61af66fc99e Initial load duke parents: diff changeset	219 } \
a61af66fc99e Initial load duke parents: diff changeset	220 }
a61af66fc99e Initial load duke parents: diff changeset	221
a61af66fc99e Initial load duke parents: diff changeset	222 #define InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \
a61af66fc99e Initial load duke parents: diff changeset	223 \
a61af66fc99e Initial load duke parents: diff changeset	224 int instanceRefKlass:: \
a61af66fc99e Initial load duke parents: diff changeset	225 oop_oop_iterate##nv_suffix##_m(oop obj, \
a61af66fc99e Initial load duke parents: diff changeset	226 OopClosureType* closure, \
a61af66fc99e Initial load duke parents: diff changeset	227 MemRegion mr) { \
a61af66fc99e Initial load duke parents: diff changeset	228 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
a61af66fc99e Initial load duke parents: diff changeset	229 \
a61af66fc99e Initial load duke parents: diff changeset	230 int size = instanceKlass::oop_oop_iterate##nv_suffix##_m(obj, closure, mr); \
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	231 if (UseCompressedOops) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	232 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, mr.contains); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	233 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	234 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, mr.contains); \
0 a61af66fc99e Initial load duke parents: diff changeset	235 } \
a61af66fc99e Initial load duke parents: diff changeset	236 }
a61af66fc99e Initial load duke parents: diff changeset	237
a61af66fc99e Initial load duke parents: diff changeset	238 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
a61af66fc99e Initial load duke parents: diff changeset	239 ALL_OOP_OOP_ITERATE_CLOSURES_3(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
a61af66fc99e Initial load duke parents: diff changeset	240 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
a61af66fc99e Initial load duke parents: diff changeset	241 ALL_OOP_OOP_ITERATE_CLOSURES_3(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
a61af66fc99e Initial load duke parents: diff changeset	242
a61af66fc99e Initial load duke parents: diff changeset	243 #ifndef SERIALGC
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	244 template <class T>
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	245 void specialized_oop_copy_contents(instanceRefKlass *ref,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	246 PSPromotionManager* pm, oop obj) {
0 a61af66fc99e Initial load duke parents: diff changeset	247 assert(!pm->depth_first(), "invariant");
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	248 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	249 if (PSScavenge::should_scavenge(referent_addr)) {
0 a61af66fc99e Initial load duke parents: diff changeset	250 ReferenceProcessor* rp = PSScavenge::reference_processor();
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	251 if (rp->discover_reference(obj, ref->reference_type())) {
0 a61af66fc99e Initial load duke parents: diff changeset	252 // reference already enqueued, referent and next will be traversed later
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	253 ref->instanceKlass::oop_copy_contents(pm, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	254 return;
a61af66fc99e Initial load duke parents: diff changeset	255 } else {
a61af66fc99e Initial load duke parents: diff changeset	256 // treat referent as normal oop
a61af66fc99e Initial load duke parents: diff changeset	257 pm->claim_or_forward_breadth(referent_addr);
a61af66fc99e Initial load duke parents: diff changeset	258 }
a61af66fc99e Initial load duke parents: diff changeset	259 }
a61af66fc99e Initial load duke parents: diff changeset	260 // treat next as normal oop
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	261 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	262 if (PSScavenge::should_scavenge(next_addr)) {
0 a61af66fc99e Initial load duke parents: diff changeset	263 pm->claim_or_forward_breadth(next_addr);
a61af66fc99e Initial load duke parents: diff changeset	264 }
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	265 ref->instanceKlass::oop_copy_contents(pm, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	266 }
a61af66fc99e Initial load duke parents: diff changeset	267
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	268 void instanceRefKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	269 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	270 specialized_oop_copy_contents<narrowOop>(this, pm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	271 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	272 specialized_oop_copy_contents<oop>(this, pm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	273 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	274 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	275
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	276 template <class T>
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	277 void specialized_oop_push_contents(instanceRefKlass *ref,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	278 PSPromotionManager* pm, oop obj) {
0 a61af66fc99e Initial load duke parents: diff changeset	279 assert(pm->depth_first(), "invariant");
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	280 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	281 if (PSScavenge::should_scavenge(referent_addr)) {
0 a61af66fc99e Initial load duke parents: diff changeset	282 ReferenceProcessor* rp = PSScavenge::reference_processor();
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	283 if (rp->discover_reference(obj, ref->reference_type())) {
0 a61af66fc99e Initial load duke parents: diff changeset	284 // reference already enqueued, referent and next will be traversed later
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	285 ref->instanceKlass::oop_push_contents(pm, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	286 return;
a61af66fc99e Initial load duke parents: diff changeset	287 } else {
a61af66fc99e Initial load duke parents: diff changeset	288 // treat referent as normal oop
a61af66fc99e Initial load duke parents: diff changeset	289 pm->claim_or_forward_depth(referent_addr);
a61af66fc99e Initial load duke parents: diff changeset	290 }
a61af66fc99e Initial load duke parents: diff changeset	291 }
a61af66fc99e Initial load duke parents: diff changeset	292 // treat next as normal oop
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	293 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	294 if (PSScavenge::should_scavenge(next_addr)) {
0 a61af66fc99e Initial load duke parents: diff changeset	295 pm->claim_or_forward_depth(next_addr);
a61af66fc99e Initial load duke parents: diff changeset	296 }
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	297 ref->instanceKlass::oop_push_contents(pm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	298 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	299
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	300 void instanceRefKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	301 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	302 specialized_oop_push_contents<narrowOop>(this, pm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	303 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	304 specialized_oop_push_contents<oop>(this, pm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	305 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	306 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	307
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	308 template <class T>
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	309 void specialized_oop_update_pointers(instanceRefKlass *ref,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	310 ParCompactionManager* cm, oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	311 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	312 PSParallelCompact::adjust_pointer(referent_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	313 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	314 PSParallelCompact::adjust_pointer(next_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	315 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	316 PSParallelCompact::adjust_pointer(discovered_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	317 debug_only(trace_reference_gc("instanceRefKlass::oop_update_ptrs", obj,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	318 referent_addr, next_addr, discovered_addr);)
0 a61af66fc99e Initial load duke parents: diff changeset	319 }
a61af66fc99e Initial load duke parents: diff changeset	320
a61af66fc99e Initial load duke parents: diff changeset	321 int instanceRefKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
a61af66fc99e Initial load duke parents: diff changeset	322 instanceKlass::oop_update_pointers(cm, obj);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	323 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	324 specialized_oop_update_pointers<narrowOop>(this, cm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	325 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	326 specialized_oop_update_pointers<oop>(this, cm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	327 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	328 return size_helper();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	329 }
0 a61af66fc99e Initial load duke parents: diff changeset	330
a61af66fc99e Initial load duke parents: diff changeset	331
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	332 template <class T> void
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	333 specialized_oop_update_pointers(ParCompactionManager* cm, oop obj,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	334 HeapWord* beg_addr, HeapWord* end_addr) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	335 T* p;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	336 T* referent_addr = p = (T*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	337 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	338 T* next_addr = p = (T*)java_lang_ref_Reference::next_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	339 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	340 T* discovered_addr = p = (T*)java_lang_ref_Reference::discovered_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	341 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	342 debug_only(trace_reference_gc("instanceRefKlass::oop_update_ptrs", obj,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	343 referent_addr, next_addr, discovered_addr);)
0 a61af66fc99e Initial load duke parents: diff changeset	344 }
a61af66fc99e Initial load duke parents: diff changeset	345
a61af66fc99e Initial load duke parents: diff changeset	346 int
a61af66fc99e Initial load duke parents: diff changeset	347 instanceRefKlass::oop_update_pointers(ParCompactionManager* cm, oop obj,
a61af66fc99e Initial load duke parents: diff changeset	348 HeapWord* beg_addr, HeapWord* end_addr) {
a61af66fc99e Initial load duke parents: diff changeset	349 instanceKlass::oop_update_pointers(cm, obj, beg_addr, end_addr);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	350 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	351 specialized_oop_update_pointers<narrowOop>(cm, obj, beg_addr, end_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	352 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	353 specialized_oop_update_pointers<oop>(cm, obj, beg_addr, end_addr);
0 a61af66fc99e Initial load duke parents: diff changeset	354 }
a61af66fc99e Initial load duke parents: diff changeset	355 return size_helper();
a61af66fc99e Initial load duke parents: diff changeset	356 }
a61af66fc99e Initial load duke parents: diff changeset	357 #endif // SERIALGC
a61af66fc99e Initial load duke parents: diff changeset	358
a61af66fc99e Initial load duke parents: diff changeset	359 void instanceRefKlass::update_nonstatic_oop_maps(klassOop k) {
a61af66fc99e Initial load duke parents: diff changeset	360 // Clear the nonstatic oop-map entries corresponding to referent
a61af66fc99e Initial load duke parents: diff changeset	361 // and nextPending field. They are treated specially by the
a61af66fc99e Initial load duke parents: diff changeset	362 // garbage collector.
a61af66fc99e Initial load duke parents: diff changeset	363 // The discovered field is used only by the garbage collector
a61af66fc99e Initial load duke parents: diff changeset	364 // and is also treated specially.
a61af66fc99e Initial load duke parents: diff changeset	365 instanceKlass* ik = instanceKlass::cast(k);
a61af66fc99e Initial load duke parents: diff changeset	366
a61af66fc99e Initial load duke parents: diff changeset	367 // Check that we have the right class
a61af66fc99e Initial load duke parents: diff changeset	368 debug_only(static bool first_time = true);
a61af66fc99e Initial load duke parents: diff changeset	369 assert(k == SystemDictionary::reference_klass() && first_time,
a61af66fc99e Initial load duke parents: diff changeset	370 "Invalid update of maps");
a61af66fc99e Initial load duke parents: diff changeset	371 debug_only(first_time = false);
a61af66fc99e Initial load duke parents: diff changeset	372 assert(ik->nonstatic_oop_map_size() == 1, "just checking");
a61af66fc99e Initial load duke parents: diff changeset	373
a61af66fc99e Initial load duke parents: diff changeset	374 OopMapBlock* map = ik->start_of_nonstatic_oop_maps();
a61af66fc99e Initial load duke parents: diff changeset	375
a61af66fc99e Initial load duke parents: diff changeset	376 // Check that the current map is (2,4) - currently points at field with
a61af66fc99e Initial load duke parents: diff changeset	377 // offset 2 (words) and has 4 map entries.
a61af66fc99e Initial load duke parents: diff changeset	378 debug_only(int offset = java_lang_ref_Reference::referent_offset);
a61af66fc99e Initial load duke parents: diff changeset	379 debug_only(int length = ((java_lang_ref_Reference::discovered_offset -
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	380 java_lang_ref_Reference::referent_offset)/heapOopSize) + 1);
0 a61af66fc99e Initial load duke parents: diff changeset	381
a61af66fc99e Initial load duke parents: diff changeset	382 if (UseSharedSpaces) {
a61af66fc99e Initial load duke parents: diff changeset	383 assert(map->offset() == java_lang_ref_Reference::queue_offset &&
a61af66fc99e Initial load duke parents: diff changeset	384 map->length() == 1, "just checking");
a61af66fc99e Initial load duke parents: diff changeset	385 } else {
a61af66fc99e Initial load duke parents: diff changeset	386 assert(map->offset() == offset && map->length() == length,
a61af66fc99e Initial load duke parents: diff changeset	387 "just checking");
a61af66fc99e Initial load duke parents: diff changeset	388
a61af66fc99e Initial load duke parents: diff changeset	389 // Update map to (3,1) - point to offset of 3 (words) with 1 map entry.
a61af66fc99e Initial load duke parents: diff changeset	390 map->set_offset(java_lang_ref_Reference::queue_offset);
a61af66fc99e Initial load duke parents: diff changeset	391 map->set_length(1);
a61af66fc99e Initial load duke parents: diff changeset	392 }
a61af66fc99e Initial load duke parents: diff changeset	393 }
a61af66fc99e Initial load duke parents: diff changeset	394
a61af66fc99e Initial load duke parents: diff changeset	395
a61af66fc99e Initial load duke parents: diff changeset	396 // Verification
a61af66fc99e Initial load duke parents: diff changeset	397
a61af66fc99e Initial load duke parents: diff changeset	398 void instanceRefKlass::oop_verify_on(oop obj, outputStream* st) {
a61af66fc99e Initial load duke parents: diff changeset	399 instanceKlass::oop_verify_on(obj, st);
a61af66fc99e Initial load duke parents: diff changeset	400 // Verify referent field
a61af66fc99e Initial load duke parents: diff changeset	401 oop referent = java_lang_ref_Reference::referent(obj);
a61af66fc99e Initial load duke parents: diff changeset	402
a61af66fc99e Initial load duke parents: diff changeset	403 // We should make this general to all heaps
a61af66fc99e Initial load duke parents: diff changeset	404 GenCollectedHeap* gch = NULL;
a61af66fc99e Initial load duke parents: diff changeset	405 if (Universe::heap()->kind() == CollectedHeap::GenCollectedHeap)
a61af66fc99e Initial load duke parents: diff changeset	406 gch = GenCollectedHeap::heap();
a61af66fc99e Initial load duke parents: diff changeset	407
a61af66fc99e Initial load duke parents: diff changeset	408 if (referent != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	409 guarantee(referent->is_oop(), "referent field heap failed");
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	410 if (gch != NULL && !gch->is_in_youngest(obj)) {
0 a61af66fc99e Initial load duke parents: diff changeset	411 // We do a specific remembered set check here since the referent
a61af66fc99e Initial load duke parents: diff changeset	412 // field is not part of the oop mask and therefore skipped by the
a61af66fc99e Initial load duke parents: diff changeset	413 // regular verify code.
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	414 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	415 narrowOop* referent_addr = (narrowOop*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	416 obj->verify_old_oop(referent_addr, true);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	417 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	418 oop* referent_addr = (oop*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	419 obj->verify_old_oop(referent_addr, true);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	420 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	421 }
0 a61af66fc99e Initial load duke parents: diff changeset	422 }
a61af66fc99e Initial load duke parents: diff changeset	423 // Verify next field
a61af66fc99e Initial load duke parents: diff changeset	424 oop next = java_lang_ref_Reference::next(obj);
a61af66fc99e Initial load duke parents: diff changeset	425 if (next != NULL) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	426 guarantee(next->is_oop(), "next field verify fa iled");
0 a61af66fc99e Initial load duke parents: diff changeset	427 guarantee(next->is_instanceRef(), "next field verify failed");
a61af66fc99e Initial load duke parents: diff changeset	428 if (gch != NULL && !gch->is_in_youngest(obj)) {
a61af66fc99e Initial load duke parents: diff changeset	429 // We do a specific remembered set check here since the next field is
a61af66fc99e Initial load duke parents: diff changeset	430 // not part of the oop mask and therefore skipped by the regular
a61af66fc99e Initial load duke parents: diff changeset	431 // verify code.
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	432 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	433 narrowOop* next_addr = (narrowOop*)java_lang_ref_Reference::next_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	434 obj->verify_old_oop(next_addr, true);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	435 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	436 oop* next_addr = (oop*)java_lang_ref_Reference::next_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	437 obj->verify_old_oop(next_addr, true);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	438 }
0 a61af66fc99e Initial load duke parents: diff changeset	439 }
a61af66fc99e Initial load duke parents: diff changeset	440 }
a61af66fc99e Initial load duke parents: diff changeset	441 }
a61af66fc99e Initial load duke parents: diff changeset	442
a61af66fc99e Initial load duke parents: diff changeset	443 void instanceRefKlass::acquire_pending_list_lock(BasicLock *pending_list_basic_lock) {
a61af66fc99e Initial load duke parents: diff changeset	444 // we may enter this with pending exception set
a61af66fc99e Initial load duke parents: diff changeset	445 PRESERVE_EXCEPTION_MARK; // exceptions are never thrown, needed for TRAPS argument
a61af66fc99e Initial load duke parents: diff changeset	446 Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
a61af66fc99e Initial load duke parents: diff changeset	447 ObjectSynchronizer::fast_enter(h_lock, pending_list_basic_lock, false, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	448 assert(ObjectSynchronizer::current_thread_holds_lock(
a61af66fc99e Initial load duke parents: diff changeset	449 JavaThread::current(), h_lock),
a61af66fc99e Initial load duke parents: diff changeset	450 "Locking should have succeeded");
a61af66fc99e Initial load duke parents: diff changeset	451 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load duke parents: diff changeset	452 }
a61af66fc99e Initial load duke parents: diff changeset	453
a61af66fc99e Initial load duke parents: diff changeset	454 void instanceRefKlass::release_and_notify_pending_list_lock(
a61af66fc99e Initial load duke parents: diff changeset	455 BasicLock *pending_list_basic_lock) {
a61af66fc99e Initial load duke parents: diff changeset	456 // we may enter this with pending exception set
a61af66fc99e Initial load duke parents: diff changeset	457 PRESERVE_EXCEPTION_MARK; // exceptions are never thrown, needed for TRAPS argument
a61af66fc99e Initial load duke parents: diff changeset	458 //
a61af66fc99e Initial load duke parents: diff changeset	459 Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
a61af66fc99e Initial load duke parents: diff changeset	460 assert(ObjectSynchronizer::current_thread_holds_lock(
a61af66fc99e Initial load duke parents: diff changeset	461 JavaThread::current(), h_lock),
a61af66fc99e Initial load duke parents: diff changeset	462 "Lock should be held");
a61af66fc99e Initial load duke parents: diff changeset	463 // Notify waiters on pending lists lock if there is any reference.
a61af66fc99e Initial load duke parents: diff changeset	464 if (java_lang_ref_Reference::pending_list() != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	465 ObjectSynchronizer::notifyall(h_lock, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	466 }
a61af66fc99e Initial load duke parents: diff changeset	467 ObjectSynchronizer::fast_exit(h_lock(), pending_list_basic_lock, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	468 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load duke parents: diff changeset	469 }

Mercurial > hg > truffle

annotate src/share/vm/oops/instanceRefKlass.cpp @ 196:d1605aabd0a1 jdk7-b30