instanceRefKlass.cpp (0:a61af66fc99e) instanceRefKlass.cpp (113:ba764ed4b6f2)
1/*
2 * Copyright 1997-2006 Sun Microsystems, 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 *

--- 11 unchanged lines hidden (view full) ---

20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25# include "incls/_precompiled.incl"
26# include "incls/_instanceRefKlass.cpp.incl"
27
1/*
2 * Copyright 1997-2006 Sun Microsystems, 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 *

--- 11 unchanged lines hidden (view full) ---

20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25# include "incls/_precompiled.incl"
26# include "incls/_instanceRefKlass.cpp.incl"
27
28void instanceRefKlass::oop_follow_contents(oop obj) {
29 oop* referent_addr = java_lang_ref_Reference::referent_addr(obj);
30 oop referent = *referent_addr;
28template <class T>
29static void specialized_oop_follow_contents(instanceRefKlass* ref, oop obj) {
30 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
31 oop referent = oopDesc::load_decode_heap_oop(referent_addr);
31 debug_only(
32 if(TraceReferenceGC && PrintGCDetails) {
32 debug_only(
33 if(TraceReferenceGC && PrintGCDetails) {
33 gclog_or_tty->print_cr("instanceRefKlass::oop_follow_contents " INTPTR_FORMAT, (address)obj);
34 gclog_or_tty->print_cr("instanceRefKlass::oop_follow_contents " INTPTR_FORMAT, obj);
34 }
35 )
36 if (referent != NULL) {
37 if (!referent->is_gc_marked() &&
38 MarkSweep::ref_processor()->
35 }
36 )
37 if (referent != NULL) {
38 if (!referent->is_gc_marked() &&
39 MarkSweep::ref_processor()->
39 discover_reference(obj, reference_type())) {
40 discover_reference(obj, ref->reference_type())) {
40 // reference already enqueued, referent will be traversed later
41 // reference already enqueued, referent will be traversed later
41 instanceKlass::oop_follow_contents(obj);
42 ref->instanceKlass::oop_follow_contents(obj);
42 debug_only(
43 if(TraceReferenceGC && PrintGCDetails) {
43 debug_only(
44 if(TraceReferenceGC && PrintGCDetails) {
44 gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, (address)obj);
45 gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, obj);
45 }
46 )
47 return;
48 } else {
49 // treat referent as normal oop
50 debug_only(
51 if(TraceReferenceGC && PrintGCDetails) {
46 }
47 )
48 return;
49 } else {
50 // treat referent as normal oop
51 debug_only(
52 if(TraceReferenceGC && PrintGCDetails) {
52 gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, (address)obj);
53 gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, obj);
53 }
54 )
55 MarkSweep::mark_and_push(referent_addr);
56 }
57 }
58 // treat next as normal oop. next is a link in the pending list.
54 }
55 )
56 MarkSweep::mark_and_push(referent_addr);
57 }
58 }
59 // treat next as normal oop. next is a link in the pending list.
59 oop* next_addr = java_lang_ref_Reference::next_addr(obj);
60 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
60 debug_only(
61 if(TraceReferenceGC && PrintGCDetails) {
62 gclog_or_tty->print_cr(" Process next as normal " INTPTR_FORMAT, next_addr);
63 }
64 )
65 MarkSweep::mark_and_push(next_addr);
61 debug_only(
62 if(TraceReferenceGC && PrintGCDetails) {
63 gclog_or_tty->print_cr(" Process next as normal " INTPTR_FORMAT, next_addr);
64 }
65 )
66 MarkSweep::mark_and_push(next_addr);
66 instanceKlass::oop_follow_contents(obj);
67 ref->instanceKlass::oop_follow_contents(obj);
67}
68
68}
69
70void instanceRefKlass::oop_follow_contents(oop obj) {
71 if (UseCompressedOops) {
72 specialized_oop_follow_contents<narrowOop>(this, obj);
73 } else {
74 specialized_oop_follow_contents<oop>(this, obj);
75 }
76}
77
69#ifndef SERIALGC
78#ifndef SERIALGC
70void instanceRefKlass::oop_follow_contents(ParCompactionManager* cm,
71 oop obj) {
72 oop* referent_addr = java_lang_ref_Reference::referent_addr(obj);
73 oop referent = *referent_addr;
79template <class T>
80static void specialized_oop_follow_contents(instanceRefKlass* ref,
81 ParCompactionManager* cm,
82 oop obj) {
83 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
84 oop referent = oopDesc::load_decode_heap_oop(referent_addr);
74 debug_only(
75 if(TraceReferenceGC && PrintGCDetails) {
85 debug_only(
86 if(TraceReferenceGC && PrintGCDetails) {
76 gclog_or_tty->print_cr("instanceRefKlass::oop_follow_contents " INTPTR_FORMAT, (address)obj);
87 gclog_or_tty->print_cr("instanceRefKlass::oop_follow_contents " INTPTR_FORMAT, obj);
77 }
78 )
79 if (referent != NULL) {
80 if (PSParallelCompact::mark_bitmap()->is_unmarked(referent) &&
81 PSParallelCompact::ref_processor()->
88 }
89 )
90 if (referent != NULL) {
91 if (PSParallelCompact::mark_bitmap()->is_unmarked(referent) &&
92 PSParallelCompact::ref_processor()->
82 discover_reference(obj, reference_type())) {
93 discover_reference(obj, ref->reference_type())) {
83 // reference already enqueued, referent will be traversed later
94 // reference already enqueued, referent will be traversed later
84 instanceKlass::oop_follow_contents(cm, obj);
95 ref->instanceKlass::oop_follow_contents(cm, obj);
85 debug_only(
86 if(TraceReferenceGC && PrintGCDetails) {
96 debug_only(
97 if(TraceReferenceGC && PrintGCDetails) {
87 gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, (address)obj);
98 gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, obj);
88 }
89 )
90 return;
91 } else {
92 // treat referent as normal oop
93 debug_only(
94 if(TraceReferenceGC && PrintGCDetails) {
99 }
100 )
101 return;
102 } else {
103 // treat referent as normal oop
104 debug_only(
105 if(TraceReferenceGC && PrintGCDetails) {
95 gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, (address)obj);
106 gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, obj);
96 }
97 )
98 PSParallelCompact::mark_and_push(cm, referent_addr);
99 }
100 }
101 // treat next as normal oop. next is a link in the pending list.
107 }
108 )
109 PSParallelCompact::mark_and_push(cm, referent_addr);
110 }
111 }
112 // treat next as normal oop. next is a link in the pending list.
102 oop* next_addr = java_lang_ref_Reference::next_addr(obj);
113 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
103 debug_only(
104 if(TraceReferenceGC && PrintGCDetails) {
105 gclog_or_tty->print_cr(" Process next as normal " INTPTR_FORMAT, next_addr);
106 }
107 )
108 PSParallelCompact::mark_and_push(cm, next_addr);
114 debug_only(
115 if(TraceReferenceGC && PrintGCDetails) {
116 gclog_or_tty->print_cr(" Process next as normal " INTPTR_FORMAT, next_addr);
117 }
118 )
119 PSParallelCompact::mark_and_push(cm, next_addr);
109 instanceKlass::oop_follow_contents(cm, obj);
120 ref->instanceKlass::oop_follow_contents(cm, obj);
110}
121}
122
123void instanceRefKlass::oop_follow_contents(ParCompactionManager* cm,
124 oop obj) {
125 if (UseCompressedOops) {
126 specialized_oop_follow_contents<narrowOop>(this, cm, obj);
127 } else {
128 specialized_oop_follow_contents<oop>(this, cm, obj);
129 }
130}
111#endif // SERIALGC
112
131#endif // SERIALGC
132
113
114int instanceRefKlass::oop_adjust_pointers(oop obj) {
115 int size = size_helper();
116 instanceKlass::oop_adjust_pointers(obj);
117
118 oop* referent_addr = java_lang_ref_Reference::referent_addr(obj);
119 MarkSweep::adjust_pointer(referent_addr);
120 oop* next_addr = java_lang_ref_Reference::next_addr(obj);
121 MarkSweep::adjust_pointer(next_addr);
122 oop* discovered_addr = java_lang_ref_Reference::discovered_addr(obj);
123 MarkSweep::adjust_pointer(discovered_addr);
124
125#ifdef ASSERT
133#ifdef ASSERT
134template <class T> void trace_reference_gc(const char *s, oop obj,
135 T* referent_addr,
136 T* next_addr,
137 T* discovered_addr) {
126 if(TraceReferenceGC && PrintGCDetails) {
138 if(TraceReferenceGC && PrintGCDetails) {
127 gclog_or_tty->print_cr("instanceRefKlass::oop_adjust_pointers obj "
128 INTPTR_FORMAT, (address)obj);
139 gclog_or_tty->print_cr("%s obj " INTPTR_FORMAT, s, (address)obj);
129 gclog_or_tty->print_cr(" referent_addr/* " INTPTR_FORMAT " / "
140 gclog_or_tty->print_cr(" referent_addr/* " INTPTR_FORMAT " / "
130 INTPTR_FORMAT, referent_addr,
131 referent_addr ? (address)*referent_addr : NULL);
141 INTPTR_FORMAT, referent_addr,
142 referent_addr ?
143 (address)oopDesc::load_decode_heap_oop(referent_addr) : NULL);
132 gclog_or_tty->print_cr(" next_addr/* " INTPTR_FORMAT " / "
144 gclog_or_tty->print_cr(" next_addr/* " INTPTR_FORMAT " / "
133 INTPTR_FORMAT, next_addr,
134 next_addr ? (address)*next_addr : NULL);
145 INTPTR_FORMAT, next_addr,
146 next_addr ? (address)oopDesc::load_decode_heap_oop(next_addr) : NULL);
135 gclog_or_tty->print_cr(" discovered_addr/* " INTPTR_FORMAT " / "
147 gclog_or_tty->print_cr(" discovered_addr/* " INTPTR_FORMAT " / "
136 INTPTR_FORMAT, discovered_addr,
137 discovered_addr ? (address)*discovered_addr : NULL);
148 INTPTR_FORMAT, discovered_addr,
149 discovered_addr ?
150 (address)oopDesc::load_decode_heap_oop(discovered_addr) : NULL);
138 }
151 }
152}
139#endif
140
153#endif
154
155template <class T> void specialized_oop_adjust_pointers(instanceRefKlass *ref, oop obj) {
156 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
157 MarkSweep::adjust_pointer(referent_addr);
158 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
159 MarkSweep::adjust_pointer(next_addr);
160 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
161 MarkSweep::adjust_pointer(discovered_addr);
162 debug_only(trace_reference_gc("instanceRefKlass::oop_adjust_pointers", obj,
163 referent_addr, next_addr, discovered_addr);)
164}
165
166int instanceRefKlass::oop_adjust_pointers(oop obj) {
167 int size = size_helper();
168 instanceKlass::oop_adjust_pointers(obj);
169
170 if (UseCompressedOops) {
171 specialized_oop_adjust_pointers<narrowOop>(this, obj);
172 } else {
173 specialized_oop_adjust_pointers<oop>(this, obj);
174 }
141 return size;
142}
143
175 return size;
176}
177
144#define InstanceRefKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
145 \
146int instanceRefKlass:: \
147oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \
148 /* Get size before changing pointers */ \
149 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
150 \
151 int size = instanceKlass::oop_oop_iterate##nv_suffix(obj, closure); \
152 \
153 oop* referent_addr = java_lang_ref_Reference::referent_addr(obj); \
154 oop referent = *referent_addr; \
155 if (referent != NULL) { \
178#define InstanceRefKlass_SPECIALIZED_OOP_ITERATE(T, nv_suffix, contains) \
179 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); \
180 oop referent = oopDesc::load_decode_heap_oop(referent_addr); \
181 if (referent != NULL && contains(referent_addr)) { \
156 ReferenceProcessor* rp = closure->_ref_processor; \
157 if (!referent->is_gc_marked() && (rp != NULL) && \
182 ReferenceProcessor* rp = closure->_ref_processor; \
183 if (!referent->is_gc_marked() && (rp != NULL) && \
158 rp->discover_reference(obj, reference_type())) { \
184 rp->discover_reference(obj, reference_type())) { \
159 return size; \
160 } else { \
161 /* treat referent as normal oop */ \
162 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk);\
163 closure->do_oop##nv_suffix(referent_addr); \
164 } \
165 } \
185 return size; \
186 } else { \
187 /* treat referent as normal oop */ \
188 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk);\
189 closure->do_oop##nv_suffix(referent_addr); \
190 } \
191 } \
166 \
167 /* treat next as normal oop */ \
192 /* treat next as normal oop */ \
168 oop* next_addr = java_lang_ref_Reference::next_addr(obj); \
169 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk); \
170 closure->do_oop##nv_suffix(next_addr); \
193 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); \
194 if (contains(next_addr)) { \
195 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk); \
196 closure->do_oop##nv_suffix(next_addr); \
197 } \
171 return size; \
198 return size; \
199
200
201template <class T> bool contains(T *t) { return true; }
202
203// Macro to define instanceRefKlass::oop_oop_iterate for virtual/nonvirtual for
204// all closures. Macros calling macros above for each oop size.
205
206#define InstanceRefKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
207 \
208int instanceRefKlass:: \
209oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \
210 /* Get size before changing pointers */ \
211 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
212 \
213 int size = instanceKlass::oop_oop_iterate##nv_suffix(obj, closure); \
214 \
215 if (UseCompressedOops) { \
216 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, contains); \
217 } else { \
218 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, contains); \
219 } \
172}
173
174#define InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \
175 \
176int instanceRefKlass:: \
177oop_oop_iterate##nv_suffix##_m(oop obj, \
178 OopClosureType* closure, \
179 MemRegion mr) { \
180 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
181 \
182 int size = instanceKlass::oop_oop_iterate##nv_suffix##_m(obj, closure, mr); \
220}
221
222#define InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \
223 \
224int instanceRefKlass:: \
225oop_oop_iterate##nv_suffix##_m(oop obj, \
226 OopClosureType* closure, \
227 MemRegion mr) { \
228 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
229 \
230 int size = instanceKlass::oop_oop_iterate##nv_suffix##_m(obj, closure, mr); \
183 \
184 oop* referent_addr = java_lang_ref_Reference::referent_addr(obj); \
185 oop referent = *referent_addr; \
186 if (referent != NULL && mr.contains(referent_addr)) { \
187 ReferenceProcessor* rp = closure->_ref_processor; \
188 if (!referent->is_gc_marked() && (rp != NULL) && \
189 rp->discover_reference(obj, reference_type())) { \
190 return size; \
191 } else { \
192 /* treat referent as normal oop */ \
193 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk);\
194 closure->do_oop##nv_suffix(referent_addr); \
195 } \
231 if (UseCompressedOops) { \
232 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, mr.contains); \
233 } else { \
234 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, mr.contains); \
196 } \
235 } \
197 \
198 /* treat next as normal oop */ \
199 oop* next_addr = java_lang_ref_Reference::next_addr(obj); \
200 if (mr.contains(next_addr)) { \
201 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk);\
202 closure->do_oop##nv_suffix(next_addr); \
203 } \
204 return size; \
205}
206
207ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
208ALL_OOP_OOP_ITERATE_CLOSURES_3(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
209ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
210ALL_OOP_OOP_ITERATE_CLOSURES_3(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
211
236}
237
238ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
239ALL_OOP_OOP_ITERATE_CLOSURES_3(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
240ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
241ALL_OOP_OOP_ITERATE_CLOSURES_3(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
242
212
213#ifndef SERIALGC
243#ifndef SERIALGC
214void instanceRefKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) {
244template <class T>
245void specialized_oop_copy_contents(instanceRefKlass *ref,
246 PSPromotionManager* pm, oop obj) {
215 assert(!pm->depth_first(), "invariant");
247 assert(!pm->depth_first(), "invariant");
216 oop* referent_addr = java_lang_ref_Reference::referent_addr(obj);
217 if (PSScavenge::should_scavenge(*referent_addr)) {
248 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
249 if (PSScavenge::should_scavenge(referent_addr)) {
218 ReferenceProcessor* rp = PSScavenge::reference_processor();
250 ReferenceProcessor* rp = PSScavenge::reference_processor();
219 if (rp->discover_reference(obj, reference_type())) {
251 if (rp->discover_reference(obj, ref->reference_type())) {
220 // reference already enqueued, referent and next will be traversed later
252 // reference already enqueued, referent and next will be traversed later
221 instanceKlass::oop_copy_contents(pm, obj);
253 ref->instanceKlass::oop_copy_contents(pm, obj);
222 return;
223 } else {
224 // treat referent as normal oop
225 pm->claim_or_forward_breadth(referent_addr);
226 }
227 }
228 // treat next as normal oop
254 return;
255 } else {
256 // treat referent as normal oop
257 pm->claim_or_forward_breadth(referent_addr);
258 }
259 }
260 // treat next as normal oop
229 oop* next_addr = java_lang_ref_Reference::next_addr(obj);
230 if (PSScavenge::should_scavenge(*next_addr)) {
261 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
262 if (PSScavenge::should_scavenge(next_addr)) {
231 pm->claim_or_forward_breadth(next_addr);
232 }
263 pm->claim_or_forward_breadth(next_addr);
264 }
233 instanceKlass::oop_copy_contents(pm, obj);
265 ref->instanceKlass::oop_copy_contents(pm, obj);
234}
235
266}
267
236void instanceRefKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
268void instanceRefKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) {
269 if (UseCompressedOops) {
270 specialized_oop_copy_contents<narrowOop>(this, pm, obj);
271 } else {
272 specialized_oop_copy_contents<oop>(this, pm, obj);
273 }
274}
275
276template <class T>
277void specialized_oop_push_contents(instanceRefKlass *ref,
278 PSPromotionManager* pm, oop obj) {
237 assert(pm->depth_first(), "invariant");
279 assert(pm->depth_first(), "invariant");
238 oop* referent_addr = java_lang_ref_Reference::referent_addr(obj);
239 if (PSScavenge::should_scavenge(*referent_addr)) {
280 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
281 if (PSScavenge::should_scavenge(referent_addr)) {
240 ReferenceProcessor* rp = PSScavenge::reference_processor();
282 ReferenceProcessor* rp = PSScavenge::reference_processor();
241 if (rp->discover_reference(obj, reference_type())) {
283 if (rp->discover_reference(obj, ref->reference_type())) {
242 // reference already enqueued, referent and next will be traversed later
284 // reference already enqueued, referent and next will be traversed later
243 instanceKlass::oop_push_contents(pm, obj);
285 ref->instanceKlass::oop_push_contents(pm, obj);
244 return;
245 } else {
246 // treat referent as normal oop
247 pm->claim_or_forward_depth(referent_addr);
248 }
249 }
250 // treat next as normal oop
286 return;
287 } else {
288 // treat referent as normal oop
289 pm->claim_or_forward_depth(referent_addr);
290 }
291 }
292 // treat next as normal oop
251 oop* next_addr = java_lang_ref_Reference::next_addr(obj);
252 if (PSScavenge::should_scavenge(*next_addr)) {
293 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
294 if (PSScavenge::should_scavenge(next_addr)) {
253 pm->claim_or_forward_depth(next_addr);
254 }
295 pm->claim_or_forward_depth(next_addr);
296 }
255 instanceKlass::oop_push_contents(pm, obj);
297 ref->instanceKlass::oop_push_contents(pm, obj);
256}
257
298}
299
258int instanceRefKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
259 instanceKlass::oop_update_pointers(cm, obj);
300void instanceRefKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
301 if (UseCompressedOops) {
302 specialized_oop_push_contents<narrowOop>(this, pm, obj);
303 } else {
304 specialized_oop_push_contents<oop>(this, pm, obj);
305 }
306}
260
307
261 oop* referent_addr = java_lang_ref_Reference::referent_addr(obj);
308template <class T>
309void specialized_oop_update_pointers(instanceRefKlass *ref,
310 ParCompactionManager* cm, oop obj) {
311 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
262 PSParallelCompact::adjust_pointer(referent_addr);
312 PSParallelCompact::adjust_pointer(referent_addr);
263 oop* next_addr = java_lang_ref_Reference::next_addr(obj);
313 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
264 PSParallelCompact::adjust_pointer(next_addr);
314 PSParallelCompact::adjust_pointer(next_addr);
265 oop* discovered_addr = java_lang_ref_Reference::discovered_addr(obj);
315 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
266 PSParallelCompact::adjust_pointer(discovered_addr);
316 PSParallelCompact::adjust_pointer(discovered_addr);
317 debug_only(trace_reference_gc("instanceRefKlass::oop_update_ptrs", obj,
318 referent_addr, next_addr, discovered_addr);)
319}
267
320
268#ifdef ASSERT
269 if(TraceReferenceGC && PrintGCDetails) {
270 gclog_or_tty->print_cr("instanceRefKlass::oop_update_pointers obj "
271 INTPTR_FORMAT, (oopDesc*) obj);
272 gclog_or_tty->print_cr(" referent_addr/* " INTPTR_FORMAT " / "
273 INTPTR_FORMAT, referent_addr,
274 referent_addr ? (oopDesc*) *referent_addr : NULL);
275 gclog_or_tty->print_cr(" next_addr/* " INTPTR_FORMAT " / "
276 INTPTR_FORMAT, next_addr,
277 next_addr ? (oopDesc*) *next_addr : NULL);
278 gclog_or_tty->print_cr(" discovered_addr/* " INTPTR_FORMAT " / "
279 INTPTR_FORMAT, discovered_addr,
280 discovered_addr ? (oopDesc*) *discovered_addr : NULL);
321int instanceRefKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
322 instanceKlass::oop_update_pointers(cm, obj);
323 if (UseCompressedOops) {
324 specialized_oop_update_pointers<narrowOop>(this, cm, obj);
325 } else {
326 specialized_oop_update_pointers<oop>(this, cm, obj);
281 }
327 }
282#endif
283
284 return size_helper();
285}
286
328 return size_helper();
329}
330
287int
288instanceRefKlass::oop_update_pointers(ParCompactionManager* cm, oop obj,
289 HeapWord* beg_addr, HeapWord* end_addr) {
290 instanceKlass::oop_update_pointers(cm, obj, beg_addr, end_addr);
291
331
292 oop* p;
293 oop* referent_addr = p = java_lang_ref_Reference::referent_addr(obj);
332template <class T> void
333specialized_oop_update_pointers(ParCompactionManager* cm, oop obj,
334 HeapWord* beg_addr, HeapWord* end_addr) {
335 T* p;
336 T* referent_addr = p = (T*)java_lang_ref_Reference::referent_addr(obj);
294 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
337 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
295 oop* next_addr = p = java_lang_ref_Reference::next_addr(obj);
338 T* next_addr = p = (T*)java_lang_ref_Reference::next_addr(obj);
296 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
339 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
297 oop* discovered_addr = p = java_lang_ref_Reference::discovered_addr(obj);
340 T* discovered_addr = p = (T*)java_lang_ref_Reference::discovered_addr(obj);
298 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
341 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
342 debug_only(trace_reference_gc("instanceRefKlass::oop_update_ptrs", obj,
343 referent_addr, next_addr, discovered_addr);)
344}
299
345
300#ifdef ASSERT
301 if(TraceReferenceGC && PrintGCDetails) {
302 gclog_or_tty->print_cr("instanceRefKlass::oop_update_pointers obj "
303 INTPTR_FORMAT, (oopDesc*) obj);
304 gclog_or_tty->print_cr(" referent_addr/* " INTPTR_FORMAT " / "
305 INTPTR_FORMAT, referent_addr,
306 referent_addr ? (oopDesc*) *referent_addr : NULL);
307 gclog_or_tty->print_cr(" next_addr/* " INTPTR_FORMAT " / "
308 INTPTR_FORMAT, next_addr,
309 next_addr ? (oopDesc*) *next_addr : NULL);
310 gclog_or_tty->print_cr(" discovered_addr/* " INTPTR_FORMAT " / "
311 INTPTR_FORMAT, discovered_addr,
312 discovered_addr ? (oopDesc*) *discovered_addr : NULL);
346int
347instanceRefKlass::oop_update_pointers(ParCompactionManager* cm, oop obj,
348 HeapWord* beg_addr, HeapWord* end_addr) {
349 instanceKlass::oop_update_pointers(cm, obj, beg_addr, end_addr);
350 if (UseCompressedOops) {
351 specialized_oop_update_pointers<narrowOop>(cm, obj, beg_addr, end_addr);
352 } else {
353 specialized_oop_update_pointers<oop>(cm, obj, beg_addr, end_addr);
313 }
354 }
314#endif
315
316 return size_helper();
317}
318#endif // SERIALGC
319
320void instanceRefKlass::update_nonstatic_oop_maps(klassOop k) {
321 // Clear the nonstatic oop-map entries corresponding to referent
322 // and nextPending field. They are treated specially by the
323 // garbage collector.

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333 assert(ik->nonstatic_oop_map_size() == 1, "just checking");
334
335 OopMapBlock* map = ik->start_of_nonstatic_oop_maps();
336
337 // Check that the current map is (2,4) - currently points at field with
338 // offset 2 (words) and has 4 map entries.
339 debug_only(int offset = java_lang_ref_Reference::referent_offset);
340 debug_only(int length = ((java_lang_ref_Reference::discovered_offset -
355 return size_helper();
356}
357#endif // SERIALGC
358
359void instanceRefKlass::update_nonstatic_oop_maps(klassOop k) {
360 // Clear the nonstatic oop-map entries corresponding to referent
361 // and nextPending field. They are treated specially by the
362 // garbage collector.

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372 assert(ik->nonstatic_oop_map_size() == 1, "just checking");
373
374 OopMapBlock* map = ik->start_of_nonstatic_oop_maps();
375
376 // Check that the current map is (2,4) - currently points at field with
377 // offset 2 (words) and has 4 map entries.
378 debug_only(int offset = java_lang_ref_Reference::referent_offset);
379 debug_only(int length = ((java_lang_ref_Reference::discovered_offset -
341 java_lang_ref_Reference::referent_offset)/wordSize) + 1);
380 java_lang_ref_Reference::referent_offset)/heapOopSize) + 1);
342
343 if (UseSharedSpaces) {
344 assert(map->offset() == java_lang_ref_Reference::queue_offset &&
345 map->length() == 1, "just checking");
346 } else {
347 assert(map->offset() == offset && map->length() == length,
348 "just checking");
349

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363
364 // We should make this general to all heaps
365 GenCollectedHeap* gch = NULL;
366 if (Universe::heap()->kind() == CollectedHeap::GenCollectedHeap)
367 gch = GenCollectedHeap::heap();
368
369 if (referent != NULL) {
370 guarantee(referent->is_oop(), "referent field heap failed");
381
382 if (UseSharedSpaces) {
383 assert(map->offset() == java_lang_ref_Reference::queue_offset &&
384 map->length() == 1, "just checking");
385 } else {
386 assert(map->offset() == offset && map->length() == length,
387 "just checking");
388

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402
403 // We should make this general to all heaps
404 GenCollectedHeap* gch = NULL;
405 if (Universe::heap()->kind() == CollectedHeap::GenCollectedHeap)
406 gch = GenCollectedHeap::heap();
407
408 if (referent != NULL) {
409 guarantee(referent->is_oop(), "referent field heap failed");
371 if (gch != NULL && !gch->is_in_youngest(obj))
410 if (gch != NULL && !gch->is_in_youngest(obj)) {
372 // We do a specific remembered set check here since the referent
373 // field is not part of the oop mask and therefore skipped by the
374 // regular verify code.
411 // We do a specific remembered set check here since the referent
412 // field is not part of the oop mask and therefore skipped by the
413 // regular verify code.
375 obj->verify_old_oop(java_lang_ref_Reference::referent_addr(obj), true);
414 if (UseCompressedOops) {
415 narrowOop* referent_addr = (narrowOop*)java_lang_ref_Reference::referent_addr(obj);
416 obj->verify_old_oop(referent_addr, true);
417 } else {
418 oop* referent_addr = (oop*)java_lang_ref_Reference::referent_addr(obj);
419 obj->verify_old_oop(referent_addr, true);
420 }
421 }
376 }
377 // Verify next field
378 oop next = java_lang_ref_Reference::next(obj);
379 if (next != NULL) {
422 }
423 // Verify next field
424 oop next = java_lang_ref_Reference::next(obj);
425 if (next != NULL) {
380 guarantee(next->is_oop(), "next field verify failed");
426 guarantee(next->is_oop(), "next field verify fa iled");
381 guarantee(next->is_instanceRef(), "next field verify failed");
382 if (gch != NULL && !gch->is_in_youngest(obj)) {
383 // We do a specific remembered set check here since the next field is
384 // not part of the oop mask and therefore skipped by the regular
385 // verify code.
427 guarantee(next->is_instanceRef(), "next field verify failed");
428 if (gch != NULL && !gch->is_in_youngest(obj)) {
429 // We do a specific remembered set check here since the next field is
430 // not part of the oop mask and therefore skipped by the regular
431 // verify code.
386 obj->verify_old_oop(java_lang_ref_Reference::next_addr(obj), true);
432 if (UseCompressedOops) {
433 narrowOop* next_addr = (narrowOop*)java_lang_ref_Reference::next_addr(obj);
434 obj->verify_old_oop(next_addr, true);
435 } else {
436 oop* next_addr = (oop*)java_lang_ref_Reference::next_addr(obj);
437 obj->verify_old_oop(next_addr, true);
438 }
387 }
388 }
389}
390
391void instanceRefKlass::acquire_pending_list_lock(BasicLock *pending_list_basic_lock) {
392 // we may enter this with pending exception set
393 PRESERVE_EXCEPTION_MARK; // exceptions are never thrown, needed for TRAPS argument
394 Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());

--- 23 unchanged lines hidden --- 		439 }
440 }
441}
442
443void instanceRefKlass::acquire_pending_list_lock(BasicLock *pending_list_basic_lock) {
444 // we may enter this with pending exception set
445 PRESERVE_EXCEPTION_MARK; // exceptions are never thrown, needed for TRAPS argument
446 Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());

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