Mercurial > hg > truffle

annotate src/share/vm/oops/oop.inline.hpp @ 647:bd441136a5ce

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge
author kvn
date Thu, 19 Mar 2009 09:13:24 -0700
parents 0fbdb4381b99 660978a2a31a
children e5b0439ef4ae
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
579
0fbdb4381b99 6814575: Update copyright year
xdono
parents: 518
diff changeset
2 * Copyright 1997-2009 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 // Implementation of all inlined member functions defined in oop.hpp
a61af66fc99e Initial load
duke
parents:
diff changeset
26 // We need a separate file to avoid circular references
a61af66fc99e Initial load
duke
parents:
diff changeset
27
a61af66fc99e Initial load
duke
parents:
diff changeset
28 inline void oopDesc::release_set_mark(markOop m) {
a61af66fc99e Initial load
duke
parents:
diff changeset
29 OrderAccess::release_store_ptr(&_mark, m);
a61af66fc99e Initial load
duke
parents:
diff changeset
30 }
a61af66fc99e Initial load
duke
parents:
diff changeset
31
a61af66fc99e Initial load
duke
parents:
diff changeset
32 inline markOop oopDesc::cas_set_mark(markOop new_mark, markOop old_mark) {
a61af66fc99e Initial load
duke
parents:
diff changeset
33 return (markOop) Atomic::cmpxchg_ptr(new_mark, &_mark, old_mark);
a61af66fc99e Initial load
duke
parents:
diff changeset
34 }
a61af66fc99e Initial load
duke
parents:
diff changeset
35
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
36 inline klassOop oopDesc::klass() const {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
37 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
38 return (klassOop)decode_heap_oop_not_null(_metadata._compressed_klass);
167
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
39 } else {
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
40 return _metadata._klass;
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
41 }
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
42 }
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
43
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
44 inline klassOop oopDesc::klass_or_null() const volatile {
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
45 // can be NULL in CMS
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
46 if (UseCompressedOops) {
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
47 return (klassOop)decode_heap_oop(_metadata._compressed_klass);
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
48 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
49 return _metadata._klass;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
50 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
51 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
52
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
53 inline int oopDesc::klass_gap_offset_in_bytes() {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
54 assert(UseCompressedOops, "only applicable to compressed headers");
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
55 return oopDesc::klass_offset_in_bytes() + sizeof(narrowOop);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
56 }
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 inline oop* oopDesc::klass_addr() {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
59 // Only used internally and with CMS and will not work with
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
60 // UseCompressedOops
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
61 assert(!UseCompressedOops, "only supported with uncompressed oops");
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
62 return (oop*) &_metadata._klass;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
63 }
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 inline narrowOop* oopDesc::compressed_klass_addr() {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
66 assert(UseCompressedOops, "only called by compressed oops");
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
67 return (narrowOop*) &_metadata._compressed_klass;
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
0
a61af66fc99e Initial load
duke
parents:
diff changeset
70 inline void oopDesc::set_klass(klassOop k) {
a61af66fc99e Initial load
duke
parents:
diff changeset
71 // since klasses are promoted no store check is needed
a61af66fc99e Initial load
duke
parents:
diff changeset
72 assert(Universe::is_bootstrapping() || k != NULL, "must be a real klassOop");
a61af66fc99e Initial load
duke
parents:
diff changeset
73 assert(Universe::is_bootstrapping() || k->is_klass(), "not a klassOop");
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
74 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
75 oop_store_without_check(compressed_klass_addr(), (oop)k);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
76 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
77 oop_store_without_check(klass_addr(), (oop) k);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
78 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
79 }
a61af66fc99e Initial load
duke
parents:
diff changeset
80
167
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
81 inline int oopDesc::klass_gap() const {
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
82 return *(int*)(((intptr_t)this) + klass_gap_offset_in_bytes());
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
83 }
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
84
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
85 inline void oopDesc::set_klass_gap(int v) {
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
86 if (UseCompressedOops) {
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
87 *(int*)(((intptr_t)this) + klass_gap_offset_in_bytes()) = v;
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
88 }
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
89 }
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
90
0
a61af66fc99e Initial load
duke
parents:
diff changeset
91 inline void oopDesc::set_klass_to_list_ptr(oop k) {
a61af66fc99e Initial load
duke
parents:
diff changeset
92 // This is only to be used during GC, for from-space objects, so no
a61af66fc99e Initial load
duke
parents:
diff changeset
93 // barrier is needed.
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
94 if (UseCompressedOops) {
454
df4305d4c1a1 6774607: SIGSEGV or (!is_null(v),"oop value can never be zero") assertion when running with CMS and COOPs
ysr
parents: 356
diff changeset
95 _metadata._compressed_klass = encode_heap_oop(k); // may be null (parnew overflow handling)
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
96 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
97 _metadata._klass = (klassOop)k;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
98 }
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 inline void oopDesc::init_mark() { set_mark(markOopDesc::prototype_for_object(this)); }
a61af66fc99e Initial load
duke
parents:
diff changeset
102 inline Klass* oopDesc::blueprint() const { return klass()->klass_part(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
103
a61af66fc99e Initial load
duke
parents:
diff changeset
104 inline bool oopDesc::is_a(klassOop k) const { return blueprint()->is_subtype_of(k); }
a61af66fc99e Initial load
duke
parents:
diff changeset
105
a61af66fc99e Initial load
duke
parents:
diff changeset
106 inline bool oopDesc::is_instance() const { return blueprint()->oop_is_instance(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
107 inline bool oopDesc::is_instanceRef() const { return blueprint()->oop_is_instanceRef(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
108 inline bool oopDesc::is_array() const { return blueprint()->oop_is_array(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
109 inline bool oopDesc::is_objArray() const { return blueprint()->oop_is_objArray(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
110 inline bool oopDesc::is_typeArray() const { return blueprint()->oop_is_typeArray(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
111 inline bool oopDesc::is_javaArray() const { return blueprint()->oop_is_javaArray(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
112 inline bool oopDesc::is_symbol() const { return blueprint()->oop_is_symbol(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
113 inline bool oopDesc::is_klass() const { return blueprint()->oop_is_klass(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
114 inline bool oopDesc::is_thread() const { return blueprint()->oop_is_thread(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
115 inline bool oopDesc::is_method() const { return blueprint()->oop_is_method(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
116 inline bool oopDesc::is_constMethod() const { return blueprint()->oop_is_constMethod(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
117 inline bool oopDesc::is_methodData() const { return blueprint()->oop_is_methodData(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
118 inline bool oopDesc::is_constantPool() const { return blueprint()->oop_is_constantPool(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
119 inline bool oopDesc::is_constantPoolCache() const { return blueprint()->oop_is_constantPoolCache(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
120 inline bool oopDesc::is_compiledICHolder() const { return blueprint()->oop_is_compiledICHolder(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
121
a61af66fc99e Initial load
duke
parents:
diff changeset
122 inline void* oopDesc::field_base(int offset) const { return (void*)&((char*)this)[offset]; }
a61af66fc99e Initial load
duke
parents:
diff changeset
123
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
124 template <class T> inline T* oopDesc::obj_field_addr(int offset) const { return (T*)field_base(offset); }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
125 inline jbyte* oopDesc::byte_field_addr(int offset) const { return (jbyte*) field_base(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
126 inline jchar* oopDesc::char_field_addr(int offset) const { return (jchar*) field_base(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
127 inline jboolean* oopDesc::bool_field_addr(int offset) const { return (jboolean*)field_base(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
128 inline jint* oopDesc::int_field_addr(int offset) const { return (jint*) field_base(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
129 inline jshort* oopDesc::short_field_addr(int offset) const { return (jshort*) field_base(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
130 inline jlong* oopDesc::long_field_addr(int offset) const { return (jlong*) field_base(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
131 inline jfloat* oopDesc::float_field_addr(int offset) const { return (jfloat*) field_base(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
132 inline jdouble* oopDesc::double_field_addr(int offset) const { return (jdouble*) field_base(offset); }
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
133 inline address* oopDesc::address_field_addr(int offset) const { return (address*) field_base(offset); }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
134
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
135
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
136 // Functions for getting and setting oops within instance objects.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
137 // If the oops are compressed, the type passed to these overloaded functions
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
138 // is narrowOop. All functions are overloaded so they can be called by
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
139 // template functions without conditionals (the compiler instantiates via
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
140 // the right type and inlines the appopriate code).
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
141
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
142 inline bool oopDesc::is_null(oop obj) { return obj == NULL; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
143 inline bool oopDesc::is_null(narrowOop obj) { return obj == 0; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
144
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
145 // Algorithm for encoding and decoding oops from 64 bit pointers to 32 bit
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
146 // offset from the heap base. Saving the check for null can save instructions
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
147 // in inner GC loops so these are separated.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
148
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
149 inline narrowOop oopDesc::encode_heap_oop_not_null(oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
150 assert(!is_null(v), "oop value can never be zero");
642
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 518
diff changeset
151 address base = Universe::narrow_oop_base();
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 518
diff changeset
152 int shift = Universe::narrow_oop_shift();
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 518
diff changeset
153 uint64_t pd = (uint64_t)(pointer_delta((void*)v, (void*)base, 1));
135
b7268662a986 6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents: 133
diff changeset
154 assert(OopEncodingHeapMax > pd, "change encoding max if new encoding");
642
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 518
diff changeset
155 uint64_t result = pd >> shift;
135
b7268662a986 6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents: 133
diff changeset
156 assert((result & CONST64(0xffffffff00000000)) == 0, "narrow oop overflow");
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
157 return (narrowOop)result;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
158 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
159
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
160 inline narrowOop oopDesc::encode_heap_oop(oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
161 return (is_null(v)) ? (narrowOop)0 : encode_heap_oop_not_null(v);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
162 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
163
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
164 inline oop oopDesc::decode_heap_oop_not_null(narrowOop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
165 assert(!is_null(v), "narrow oop value can never be zero");
642
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 518
diff changeset
166 address base = Universe::narrow_oop_base();
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 518
diff changeset
167 int shift = Universe::narrow_oop_shift();
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 518
diff changeset
168 return (oop)(void*)((uintptr_t)base + ((uintptr_t)v << shift));
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
169 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
170
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
171 inline oop oopDesc::decode_heap_oop(narrowOop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
172 return is_null(v) ? (oop)NULL : decode_heap_oop_not_null(v);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
173 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
174
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
175 inline oop oopDesc::decode_heap_oop_not_null(oop v) { return v; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
176 inline oop oopDesc::decode_heap_oop(oop v) { return v; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
177
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
178 // Load an oop out of the Java heap as is without decoding.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
179 // Called by GC to check for null before decoding.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
180 inline oop oopDesc::load_heap_oop(oop* p) { return *p; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
181 inline narrowOop oopDesc::load_heap_oop(narrowOop* p) { return *p; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
182
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
183 // Load and decode an oop out of the Java heap into a wide oop.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
184 inline oop oopDesc::load_decode_heap_oop_not_null(oop* p) { return *p; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
185 inline oop oopDesc::load_decode_heap_oop_not_null(narrowOop* p) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
186 return decode_heap_oop_not_null(*p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
187 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
188
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
189 // Load and decode an oop out of the heap accepting null
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
190 inline oop oopDesc::load_decode_heap_oop(oop* p) { return *p; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
191 inline oop oopDesc::load_decode_heap_oop(narrowOop* p) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
192 return decode_heap_oop(*p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
193 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
194
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
195 // Store already encoded heap oop into the heap.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
196 inline void oopDesc::store_heap_oop(oop* p, oop v) { *p = v; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
197 inline void oopDesc::store_heap_oop(narrowOop* p, narrowOop v) { *p = v; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
198
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
199 // Encode and store a heap oop.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
200 inline void oopDesc::encode_store_heap_oop_not_null(narrowOop* p, oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
201 *p = encode_heap_oop_not_null(v);
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 inline void oopDesc::encode_store_heap_oop_not_null(oop* p, oop v) { *p = v; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
204
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
205 // Encode and store a heap oop allowing for null.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
206 inline void oopDesc::encode_store_heap_oop(narrowOop* p, oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
207 *p = encode_heap_oop(v);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
208 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
209 inline void oopDesc::encode_store_heap_oop(oop* p, oop v) { *p = v; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
210
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
211 // Store heap oop as is for volatile fields.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
212 inline void oopDesc::release_store_heap_oop(volatile oop* p, oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
213 OrderAccess::release_store_ptr(p, v);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
214 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
215 inline void oopDesc::release_store_heap_oop(volatile narrowOop* p,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
216 narrowOop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
217 OrderAccess::release_store(p, v);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
218 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
219
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
220 inline void oopDesc::release_encode_store_heap_oop_not_null(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
221 volatile narrowOop* p, oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
222 // heap oop is not pointer sized.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
223 OrderAccess::release_store(p, encode_heap_oop_not_null(v));
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
224 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
225
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
226 inline void oopDesc::release_encode_store_heap_oop_not_null(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
227 volatile oop* p, oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
228 OrderAccess::release_store_ptr(p, v);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
229 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
230
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
231 inline void oopDesc::release_encode_store_heap_oop(volatile oop* p,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
232 oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
233 OrderAccess::release_store_ptr(p, v);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
234 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
235 inline void oopDesc::release_encode_store_heap_oop(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
236 volatile narrowOop* p, oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
237 OrderAccess::release_store(p, encode_heap_oop(v));
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
238 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
239
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
240
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
241 // These functions are only used to exchange oop fields in instances,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
242 // not headers.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
243 inline oop oopDesc::atomic_exchange_oop(oop exchange_value, volatile HeapWord *dest) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
244 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
245 // encode exchange value from oop to T
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
246 narrowOop val = encode_heap_oop(exchange_value);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
247 narrowOop old = (narrowOop)Atomic::xchg(val, (narrowOop*)dest);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
248 // decode old from T to oop
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
249 return decode_heap_oop(old);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
250 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
251 return (oop)Atomic::xchg_ptr(exchange_value, (oop*)dest);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
252 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
253 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
254
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
255 inline oop oopDesc::atomic_compare_exchange_oop(oop exchange_value,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
256 volatile HeapWord *dest,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
257 oop compare_value) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
258 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
259 // encode exchange and compare value from oop to T
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
260 narrowOop val = encode_heap_oop(exchange_value);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
261 narrowOop cmp = encode_heap_oop(compare_value);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
262
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
263 narrowOop old = (narrowOop) Atomic::cmpxchg(val, (narrowOop*)dest, cmp);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
264 // decode old from T to oop
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
265 return decode_heap_oop(old);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
266 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
267 return (oop)Atomic::cmpxchg_ptr(exchange_value, (oop*)dest, compare_value);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
268 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
269 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
270
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
271 // In order to put or get a field out of an instance, must first check
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
272 // if the field has been compressed and uncompress it.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
273 inline oop oopDesc::obj_field(int offset) const {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
274 return UseCompressedOops ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
275 load_decode_heap_oop(obj_field_addr<narrowOop>(offset)) :
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
276 load_decode_heap_oop(obj_field_addr<oop>(offset));
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
277 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
278 inline void oopDesc::obj_field_put(int offset, oop value) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
279 UseCompressedOops ? oop_store(obj_field_addr<narrowOop>(offset), value) :
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
280 oop_store(obj_field_addr<oop>(offset), value);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
281 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
282 inline void oopDesc::obj_field_raw_put(int offset, oop value) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
283 UseCompressedOops ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
284 encode_store_heap_oop(obj_field_addr<narrowOop>(offset), value) :
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
285 encode_store_heap_oop(obj_field_addr<oop>(offset), value);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
286 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
287
a61af66fc99e Initial load
duke
parents:
diff changeset
288 inline jbyte oopDesc::byte_field(int offset) const { return (jbyte) *byte_field_addr(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
289 inline void oopDesc::byte_field_put(int offset, jbyte contents) { *byte_field_addr(offset) = (jint) contents; }
a61af66fc99e Initial load
duke
parents:
diff changeset
290
a61af66fc99e Initial load
duke
parents:
diff changeset
291 inline jboolean oopDesc::bool_field(int offset) const { return (jboolean) *bool_field_addr(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
292 inline void oopDesc::bool_field_put(int offset, jboolean contents) { *bool_field_addr(offset) = (jint) contents; }
a61af66fc99e Initial load
duke
parents:
diff changeset
293
a61af66fc99e Initial load
duke
parents:
diff changeset
294 inline jchar oopDesc::char_field(int offset) const { return (jchar) *char_field_addr(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
295 inline void oopDesc::char_field_put(int offset, jchar contents) { *char_field_addr(offset) = (jint) contents; }
a61af66fc99e Initial load
duke
parents:
diff changeset
296
a61af66fc99e Initial load
duke
parents:
diff changeset
297 inline jint oopDesc::int_field(int offset) const { return *int_field_addr(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
298 inline void oopDesc::int_field_put(int offset, jint contents) { *int_field_addr(offset) = contents; }
a61af66fc99e Initial load
duke
parents:
diff changeset
299
a61af66fc99e Initial load
duke
parents:
diff changeset
300 inline jshort oopDesc::short_field(int offset) const { return (jshort) *short_field_addr(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
301 inline void oopDesc::short_field_put(int offset, jshort contents) { *short_field_addr(offset) = (jint) contents;}
a61af66fc99e Initial load
duke
parents:
diff changeset
302
a61af66fc99e Initial load
duke
parents:
diff changeset
303 inline jlong oopDesc::long_field(int offset) const { return *long_field_addr(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
304 inline void oopDesc::long_field_put(int offset, jlong contents) { *long_field_addr(offset) = contents; }
a61af66fc99e Initial load
duke
parents:
diff changeset
305
a61af66fc99e Initial load
duke
parents:
diff changeset
306 inline jfloat oopDesc::float_field(int offset) const { return *float_field_addr(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
307 inline void oopDesc::float_field_put(int offset, jfloat contents) { *float_field_addr(offset) = contents; }
a61af66fc99e Initial load
duke
parents:
diff changeset
308
a61af66fc99e Initial load
duke
parents:
diff changeset
309 inline jdouble oopDesc::double_field(int offset) const { return *double_field_addr(offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
310 inline void oopDesc::double_field_put(int offset, jdouble contents) { *double_field_addr(offset) = contents; }
a61af66fc99e Initial load
duke
parents:
diff changeset
311
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
312 inline address oopDesc::address_field(int offset) const { return *address_field_addr(offset); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
313 inline void oopDesc::address_field_put(int offset, address contents) { *address_field_addr(offset) = contents; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
314
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
315 inline oop oopDesc::obj_field_acquire(int offset) const {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
316 return UseCompressedOops ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
317 decode_heap_oop((narrowOop)
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
318 OrderAccess::load_acquire(obj_field_addr<narrowOop>(offset)))
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
319 : decode_heap_oop((oop)
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
320 OrderAccess::load_ptr_acquire(obj_field_addr<oop>(offset)));
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
321 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
322 inline void oopDesc::release_obj_field_put(int offset, oop value) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
323 UseCompressedOops ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
324 oop_store((volatile narrowOop*)obj_field_addr<narrowOop>(offset), value) :
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
325 oop_store((volatile oop*) obj_field_addr<oop>(offset), value);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
326 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
327
a61af66fc99e Initial load
duke
parents:
diff changeset
328 inline jbyte oopDesc::byte_field_acquire(int offset) const { return OrderAccess::load_acquire(byte_field_addr(offset)); }
a61af66fc99e Initial load
duke
parents:
diff changeset
329 inline void oopDesc::release_byte_field_put(int offset, jbyte contents) { OrderAccess::release_store(byte_field_addr(offset), contents); }
a61af66fc99e Initial load
duke
parents:
diff changeset
330
a61af66fc99e Initial load
duke
parents:
diff changeset
331 inline jboolean oopDesc::bool_field_acquire(int offset) const { return OrderAccess::load_acquire(bool_field_addr(offset)); }
a61af66fc99e Initial load
duke
parents:
diff changeset
332 inline void oopDesc::release_bool_field_put(int offset, jboolean contents) { OrderAccess::release_store(bool_field_addr(offset), contents); }
a61af66fc99e Initial load
duke
parents:
diff changeset
333
a61af66fc99e Initial load
duke
parents:
diff changeset
334 inline jchar oopDesc::char_field_acquire(int offset) const { return OrderAccess::load_acquire(char_field_addr(offset)); }
a61af66fc99e Initial load
duke
parents:
diff changeset
335 inline void oopDesc::release_char_field_put(int offset, jchar contents) { OrderAccess::release_store(char_field_addr(offset), contents); }
a61af66fc99e Initial load
duke
parents:
diff changeset
336
a61af66fc99e Initial load
duke
parents:
diff changeset
337 inline jint oopDesc::int_field_acquire(int offset) const { return OrderAccess::load_acquire(int_field_addr(offset)); }
a61af66fc99e Initial load
duke
parents:
diff changeset
338 inline void oopDesc::release_int_field_put(int offset, jint contents) { OrderAccess::release_store(int_field_addr(offset), contents); }
a61af66fc99e Initial load
duke
parents:
diff changeset
339
a61af66fc99e Initial load
duke
parents:
diff changeset
340 inline jshort oopDesc::short_field_acquire(int offset) const { return (jshort)OrderAccess::load_acquire(short_field_addr(offset)); }
a61af66fc99e Initial load
duke
parents:
diff changeset
341 inline void oopDesc::release_short_field_put(int offset, jshort contents) { OrderAccess::release_store(short_field_addr(offset), contents); }
a61af66fc99e Initial load
duke
parents:
diff changeset
342
a61af66fc99e Initial load
duke
parents:
diff changeset
343 inline jlong oopDesc::long_field_acquire(int offset) const { return OrderAccess::load_acquire(long_field_addr(offset)); }
a61af66fc99e Initial load
duke
parents:
diff changeset
344 inline void oopDesc::release_long_field_put(int offset, jlong contents) { OrderAccess::release_store(long_field_addr(offset), contents); }
a61af66fc99e Initial load
duke
parents:
diff changeset
345
a61af66fc99e Initial load
duke
parents:
diff changeset
346 inline jfloat oopDesc::float_field_acquire(int offset) const { return OrderAccess::load_acquire(float_field_addr(offset)); }
a61af66fc99e Initial load
duke
parents:
diff changeset
347 inline void oopDesc::release_float_field_put(int offset, jfloat contents) { OrderAccess::release_store(float_field_addr(offset), contents); }
a61af66fc99e Initial load
duke
parents:
diff changeset
348
a61af66fc99e Initial load
duke
parents:
diff changeset
349 inline jdouble oopDesc::double_field_acquire(int offset) const { return OrderAccess::load_acquire(double_field_addr(offset)); }
a61af66fc99e Initial load
duke
parents:
diff changeset
350 inline void oopDesc::release_double_field_put(int offset, jdouble contents) { OrderAccess::release_store(double_field_addr(offset), contents); }
a61af66fc99e Initial load
duke
parents:
diff changeset
351
a61af66fc99e Initial load
duke
parents:
diff changeset
352 inline int oopDesc::size_given_klass(Klass* klass) {
a61af66fc99e Initial load
duke
parents:
diff changeset
353 int lh = klass->layout_helper();
a61af66fc99e Initial load
duke
parents:
diff changeset
354 int s = lh >> LogHeapWordSize; // deliver size scaled by wordSize
a61af66fc99e Initial load
duke
parents:
diff changeset
355
a61af66fc99e Initial load
duke
parents:
diff changeset
356 // lh is now a value computed at class initialization that may hint
a61af66fc99e Initial load
duke
parents:
diff changeset
357 // at the size. For instances, this is positive and equal to the
a61af66fc99e Initial load
duke
parents:
diff changeset
358 // size. For arrays, this is negative and provides log2 of the
a61af66fc99e Initial load
duke
parents:
diff changeset
359 // array element size. For other oops, it is zero and thus requires
a61af66fc99e Initial load
duke
parents:
diff changeset
360 // a virtual call.
a61af66fc99e Initial load
duke
parents:
diff changeset
361 //
a61af66fc99e Initial load
duke
parents:
diff changeset
362 // We go to all this trouble because the size computation is at the
a61af66fc99e Initial load
duke
parents:
diff changeset
363 // heart of phase 2 of mark-compaction, and called for every object,
a61af66fc99e Initial load
duke
parents:
diff changeset
364 // alive or dead. So the speed here is equal in importance to the
a61af66fc99e Initial load
duke
parents:
diff changeset
365 // speed of allocation.
a61af66fc99e Initial load
duke
parents:
diff changeset
366
a61af66fc99e Initial load
duke
parents:
diff changeset
367 if (lh <= Klass::_lh_neutral_value) {
a61af66fc99e Initial load
duke
parents:
diff changeset
368 // The most common case is instances; fall through if so.
a61af66fc99e Initial load
duke
parents:
diff changeset
369 if (lh < Klass::_lh_neutral_value) {
a61af66fc99e Initial load
duke
parents:
diff changeset
370 // Second most common case is arrays. We have to fetch the
a61af66fc99e Initial load
duke
parents:
diff changeset
371 // length of the array, shift (multiply) it appropriately,
a61af66fc99e Initial load
duke
parents:
diff changeset
372 // up to wordSize, add the header, and align to object size.
a61af66fc99e Initial load
duke
parents:
diff changeset
373 size_t size_in_bytes;
a61af66fc99e Initial load
duke
parents:
diff changeset
374 #ifdef _M_IA64
a61af66fc99e Initial load
duke
parents:
diff changeset
375 // The Windows Itanium Aug 2002 SDK hoists this load above
a61af66fc99e Initial load
duke
parents:
diff changeset
376 // the check for s < 0. An oop at the end of the heap will
a61af66fc99e Initial load
duke
parents:
diff changeset
377 // cause an access violation if this load is performed on a non
a61af66fc99e Initial load
duke
parents:
diff changeset
378 // array oop. Making the reference volatile prohibits this.
a61af66fc99e Initial load
duke
parents:
diff changeset
379 // (%%% please explain by what magic the length is actually fetched!)
a61af66fc99e Initial load
duke
parents:
diff changeset
380 volatile int *array_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
381 array_length = (volatile int *)( (intptr_t)this +
a61af66fc99e Initial load
duke
parents:
diff changeset
382 arrayOopDesc::length_offset_in_bytes() );
a61af66fc99e Initial load
duke
parents:
diff changeset
383 assert(array_length > 0, "Integer arithmetic problem somewhere");
a61af66fc99e Initial load
duke
parents:
diff changeset
384 // Put into size_t to avoid overflow.
a61af66fc99e Initial load
duke
parents:
diff changeset
385 size_in_bytes = (size_t) array_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
386 size_in_bytes = size_in_bytes << Klass::layout_helper_log2_element_size(lh);
a61af66fc99e Initial load
duke
parents:
diff changeset
387 #else
a61af66fc99e Initial load
duke
parents:
diff changeset
388 size_t array_length = (size_t) ((arrayOop)this)->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
389 size_in_bytes = array_length << Klass::layout_helper_log2_element_size(lh);
a61af66fc99e Initial load
duke
parents:
diff changeset
390 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
391 size_in_bytes += Klass::layout_helper_header_size(lh);
a61af66fc99e Initial load
duke
parents:
diff changeset
392
a61af66fc99e Initial load
duke
parents:
diff changeset
393 // This code could be simplified, but by keeping array_header_in_bytes
a61af66fc99e Initial load
duke
parents:
diff changeset
394 // in units of bytes and doing it this way we can round up just once,
a61af66fc99e Initial load
duke
parents:
diff changeset
395 // skipping the intermediate round to HeapWordSize. Cast the result
a61af66fc99e Initial load
duke
parents:
diff changeset
396 // of round_to to size_t to guarantee unsigned division == right shift.
a61af66fc99e Initial load
duke
parents:
diff changeset
397 s = (int)((size_t)round_to(size_in_bytes, MinObjAlignmentInBytes) /
a61af66fc99e Initial load
duke
parents:
diff changeset
398 HeapWordSize);
a61af66fc99e Initial load
duke
parents:
diff changeset
399
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
400 // UseParNewGC, UseParallelGC and UseG1GC can change the length field
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
401 // of an "old copy" of an object array in the young gen so it indicates
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
402 // the grey portion of an already copied array. This will cause the first
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
403 // disjunct below to fail if the two comparands are computed across such
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
404 // a concurrent change.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
405 // UseParNewGC also runs with promotion labs (which look like int
a61af66fc99e Initial load
duke
parents:
diff changeset
406 // filler arrays) which are subject to changing their declared size
a61af66fc99e Initial load
duke
parents:
diff changeset
407 // when finally retiring a PLAB; this also can cause the first disjunct
a61af66fc99e Initial load
duke
parents:
diff changeset
408 // to fail for another worker thread that is concurrently walking the block
a61af66fc99e Initial load
duke
parents:
diff changeset
409 // offset table. Both these invariant failures are benign for their
a61af66fc99e Initial load
duke
parents:
diff changeset
410 // current uses; we relax the assertion checking to cover these two cases below:
a61af66fc99e Initial load
duke
parents:
diff changeset
411 // is_objArray() && is_forwarded() // covers first scenario above
a61af66fc99e Initial load
duke
parents:
diff changeset
412 // || is_typeArray() // covers second scenario above
a61af66fc99e Initial load
duke
parents:
diff changeset
413 // If and when UseParallelGC uses the same obj array oop stealing/chunking
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
414 // technique, we will need to suitably modify the assertion.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
415 assert((s == klass->oop_size(this)) ||
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
416 (Universe::heap()->is_gc_active() &&
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
417 ((is_typeArray() && UseParNewGC) ||
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
418 (is_objArray() && is_forwarded() && (UseParNewGC || UseParallelGC || UseG1GC)))),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
419 "wrong array object size");
a61af66fc99e Initial load
duke
parents:
diff changeset
420 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
421 // Must be zero, so bite the bullet and take the virtual call.
a61af66fc99e Initial load
duke
parents:
diff changeset
422 s = klass->oop_size(this);
a61af66fc99e Initial load
duke
parents:
diff changeset
423 }
a61af66fc99e Initial load
duke
parents:
diff changeset
424 }
a61af66fc99e Initial load
duke
parents:
diff changeset
425
a61af66fc99e Initial load
duke
parents:
diff changeset
426 assert(s % MinObjAlignment == 0, "alignment check");
a61af66fc99e Initial load
duke
parents:
diff changeset
427 assert(s > 0, "Bad size calculated");
a61af66fc99e Initial load
duke
parents:
diff changeset
428 return s;
a61af66fc99e Initial load
duke
parents:
diff changeset
429 }
a61af66fc99e Initial load
duke
parents:
diff changeset
430
a61af66fc99e Initial load
duke
parents:
diff changeset
431
a61af66fc99e Initial load
duke
parents:
diff changeset
432 inline int oopDesc::size() {
a61af66fc99e Initial load
duke
parents:
diff changeset
433 return size_given_klass(blueprint());
a61af66fc99e Initial load
duke
parents:
diff changeset
434 }
a61af66fc99e Initial load
duke
parents:
diff changeset
435
a61af66fc99e Initial load
duke
parents:
diff changeset
436 inline bool oopDesc::is_parsable() {
a61af66fc99e Initial load
duke
parents:
diff changeset
437 return blueprint()->oop_is_parsable(this);
a61af66fc99e Initial load
duke
parents:
diff changeset
438 }
a61af66fc99e Initial load
duke
parents:
diff changeset
439
518
0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 454
diff changeset
440 inline bool oopDesc::is_conc_safe() {
0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 454
diff changeset
441 return blueprint()->oop_is_conc_safe(this);
0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 454
diff changeset
442 }
0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 454
diff changeset
443
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
444 inline void update_barrier_set(void* p, oop v) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
445 assert(oopDesc::bs() != NULL, "Uninitialized bs in oop!");
a61af66fc99e Initial load
duke
parents:
diff changeset
446 oopDesc::bs()->write_ref_field(p, v);
a61af66fc99e Initial load
duke
parents:
diff changeset
447 }
a61af66fc99e Initial load
duke
parents:
diff changeset
448
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
449 inline void update_barrier_set_pre(void* p, oop v) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
450 oopDesc::bs()->write_ref_field_pre(p, v);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
451 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
452
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
453 template <class T> inline void oop_store(T* p, oop v) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
454 if (always_do_update_barrier) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
455 oop_store((volatile T*)p, v);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
456 } else {
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
457 update_barrier_set_pre(p, v);
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
458 oopDesc::encode_store_heap_oop(p, v);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
459 update_barrier_set(p, v);
a61af66fc99e Initial load
duke
parents:
diff changeset
460 }
a61af66fc99e Initial load
duke
parents:
diff changeset
461 }
a61af66fc99e Initial load
duke
parents:
diff changeset
462
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
463 template <class T> inline void oop_store(volatile T* p, oop v) {
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
464 update_barrier_set_pre((void*)p, v);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
465 // Used by release_obj_field_put, so use release_store_ptr.
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
466 oopDesc::release_encode_store_heap_oop(p, v);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
467 update_barrier_set((void*)p, v);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
468 }
a61af66fc99e Initial load
duke
parents:
diff changeset
469
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
470 template <class T> inline void oop_store_without_check(T* p, oop v) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
471 // XXX YSR FIX ME!!!
a61af66fc99e Initial load
duke
parents:
diff changeset
472 if (always_do_update_barrier) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
473 oop_store(p, v);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
474 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
475 assert(!Universe::heap()->barrier_set()->write_ref_needs_barrier(p, v),
a61af66fc99e Initial load
duke
parents:
diff changeset
476 "oop store without store check failed");
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
477 oopDesc::encode_store_heap_oop(p, v);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
478 }
a61af66fc99e Initial load
duke
parents:
diff changeset
479 }
a61af66fc99e Initial load
duke
parents:
diff changeset
480
a61af66fc99e Initial load
duke
parents:
diff changeset
481 // When it absolutely has to get there.
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
482 template <class T> inline void oop_store_without_check(volatile T* p, oop v) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
483 // XXX YSR FIX ME!!!
a61af66fc99e Initial load
duke
parents:
diff changeset
484 if (always_do_update_barrier) {
a61af66fc99e Initial load
duke
parents:
diff changeset
485 oop_store(p, v);
a61af66fc99e Initial load
duke
parents:
diff changeset
486 } else {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
487 assert(!Universe::heap()->barrier_set()->write_ref_needs_barrier((T*)p, v),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
488 "oop store without store check failed");
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
489 oopDesc::release_encode_store_heap_oop(p, v);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
490 }
a61af66fc99e Initial load
duke
parents:
diff changeset
491 }
a61af66fc99e Initial load
duke
parents:
diff changeset
492
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
493 // Should replace *addr = oop assignments where addr type depends on UseCompressedOops
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
494 // (without having to remember the function name this calls).
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
495 inline void oop_store_raw(HeapWord* addr, oop value) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
496 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
497 oopDesc::encode_store_heap_oop((narrowOop*)addr, value);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
498 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
499 oopDesc::encode_store_heap_oop((oop*)addr, value);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
500 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
501 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
502
a61af66fc99e Initial load
duke
parents:
diff changeset
503 // Used only for markSweep, scavenging
a61af66fc99e Initial load
duke
parents:
diff changeset
504 inline bool oopDesc::is_gc_marked() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
505 return mark()->is_marked();
a61af66fc99e Initial load
duke
parents:
diff changeset
506 }
a61af66fc99e Initial load
duke
parents:
diff changeset
507
a61af66fc99e Initial load
duke
parents:
diff changeset
508 inline bool oopDesc::is_locked() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
509 return mark()->is_locked();
a61af66fc99e Initial load
duke
parents:
diff changeset
510 }
a61af66fc99e Initial load
duke
parents:
diff changeset
511
a61af66fc99e Initial load
duke
parents:
diff changeset
512 inline bool oopDesc::is_unlocked() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
513 return mark()->is_unlocked();
a61af66fc99e Initial load
duke
parents:
diff changeset
514 }
a61af66fc99e Initial load
duke
parents:
diff changeset
515
a61af66fc99e Initial load
duke
parents:
diff changeset
516 inline bool oopDesc::has_bias_pattern() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
517 return mark()->has_bias_pattern();
a61af66fc99e Initial load
duke
parents:
diff changeset
518 }
a61af66fc99e Initial load
duke
parents:
diff changeset
519
a61af66fc99e Initial load
duke
parents:
diff changeset
520 inline bool check_obj_alignment(oop obj) {
a61af66fc99e Initial load
duke
parents:
diff changeset
521 return (intptr_t)obj % MinObjAlignmentInBytes == 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
522 }
a61af66fc99e Initial load
duke
parents:
diff changeset
523
a61af66fc99e Initial load
duke
parents:
diff changeset
524
a61af66fc99e Initial load
duke
parents:
diff changeset
525 // used only for asserts
a61af66fc99e Initial load
duke
parents:
diff changeset
526 inline bool oopDesc::is_oop(bool ignore_mark_word) const {
a61af66fc99e Initial load
duke
parents:
diff changeset
527 oop obj = (oop) this;
a61af66fc99e Initial load
duke
parents:
diff changeset
528 if (!check_obj_alignment(obj)) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
529 if (!Universe::heap()->is_in_reserved(obj)) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
530 // obj is aligned and accessible in heap
a61af66fc99e Initial load
duke
parents:
diff changeset
531 // try to find metaclass cycle safely without seg faulting on bad input
a61af66fc99e Initial load
duke
parents:
diff changeset
532 // we should reach klassKlassObj by following klass link at most 3 times
a61af66fc99e Initial load
duke
parents:
diff changeset
533 for (int i = 0; i < 3; i++) {
167
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
parents: 135
diff changeset
534 obj = obj->klass_or_null();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
535 // klass should be aligned and in permspace
a61af66fc99e Initial load
duke
parents:
diff changeset
536 if (!check_obj_alignment(obj)) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
537 if (!Universe::heap()->is_in_permanent(obj)) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
538 }
a61af66fc99e Initial load
duke
parents:
diff changeset
539 if (obj != Universe::klassKlassObj()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
540 // During a dump, the _klassKlassObj moved to a shared space.
a61af66fc99e Initial load
duke
parents:
diff changeset
541 if (DumpSharedSpaces && Universe::klassKlassObj()->is_shared()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
542 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
543 }
a61af66fc99e Initial load
duke
parents:
diff changeset
544 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
545 }
a61af66fc99e Initial load
duke
parents:
diff changeset
546
a61af66fc99e Initial load
duke
parents:
diff changeset
547 // Header verification: the mark is typically non-NULL. If we're
a61af66fc99e Initial load
duke
parents:
diff changeset
548 // at a safepoint, it must not be null.
a61af66fc99e Initial load
duke
parents:
diff changeset
549 // Outside of a safepoint, the header could be changing (for example,
a61af66fc99e Initial load
duke
parents:
diff changeset
550 // another thread could be inflating a lock on this object).
a61af66fc99e Initial load
duke
parents:
diff changeset
551 if (ignore_mark_word) {
a61af66fc99e Initial load
duke
parents:
diff changeset
552 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
553 }
a61af66fc99e Initial load
duke
parents:
diff changeset
554 if (mark() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
555 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
556 }
a61af66fc99e Initial load
duke
parents:
diff changeset
557 return !SafepointSynchronize::is_at_safepoint();
a61af66fc99e Initial load
duke
parents:
diff changeset
558 }
a61af66fc99e Initial load
duke
parents:
diff changeset
559
a61af66fc99e Initial load
duke
parents:
diff changeset
560
a61af66fc99e Initial load
duke
parents:
diff changeset
561 // used only for asserts
a61af66fc99e Initial load
duke
parents:
diff changeset
562 inline bool oopDesc::is_oop_or_null(bool ignore_mark_word) const {
a61af66fc99e Initial load
duke
parents:
diff changeset
563 return this == NULL ? true : is_oop(ignore_mark_word);
a61af66fc99e Initial load
duke
parents:
diff changeset
564 }
a61af66fc99e Initial load
duke
parents:
diff changeset
565
a61af66fc99e Initial load
duke
parents:
diff changeset
566 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
567 // used only for asserts
a61af66fc99e Initial load
duke
parents:
diff changeset
568 inline bool oopDesc::is_unlocked_oop() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
569 if (!Universe::heap()->is_in_reserved(this)) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
570 return mark()->is_unlocked();
a61af66fc99e Initial load
duke
parents:
diff changeset
571 }
a61af66fc99e Initial load
duke
parents:
diff changeset
572 #endif // PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
573
a61af66fc99e Initial load
duke
parents:
diff changeset
574 inline void oopDesc::follow_header() {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
575 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
576 MarkSweep::mark_and_push(compressed_klass_addr());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
577 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
578 MarkSweep::mark_and_push(klass_addr());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
579 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
580 }
a61af66fc99e Initial load
duke
parents:
diff changeset
581
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
582 inline void oopDesc::follow_contents(void) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
583 assert (is_gc_marked(), "should be marked");
a61af66fc99e Initial load
duke
parents:
diff changeset
584 blueprint()->oop_follow_contents(this);
a61af66fc99e Initial load
duke
parents:
diff changeset
585 }
a61af66fc99e Initial load
duke
parents:
diff changeset
586
a61af66fc99e Initial load
duke
parents:
diff changeset
587
a61af66fc99e Initial load
duke
parents:
diff changeset
588 // Used by scavengers
a61af66fc99e Initial load
duke
parents:
diff changeset
589
a61af66fc99e Initial load
duke
parents:
diff changeset
590 inline bool oopDesc::is_forwarded() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
591 // The extra heap check is needed since the obj might be locked, in which case the
a61af66fc99e Initial load
duke
parents:
diff changeset
592 // mark would point to a stack location and have the sentinel bit cleared
a61af66fc99e Initial load
duke
parents:
diff changeset
593 return mark()->is_marked();
a61af66fc99e Initial load
duke
parents:
diff changeset
594 }
a61af66fc99e Initial load
duke
parents:
diff changeset
595
a61af66fc99e Initial load
duke
parents:
diff changeset
596 // Used by scavengers
a61af66fc99e Initial load
duke
parents:
diff changeset
597 inline void oopDesc::forward_to(oop p) {
a61af66fc99e Initial load
duke
parents:
diff changeset
598 assert(Universe::heap()->is_in_reserved(p),
a61af66fc99e Initial load
duke
parents:
diff changeset
599 "forwarding to something not in heap");
a61af66fc99e Initial load
duke
parents:
diff changeset
600 markOop m = markOopDesc::encode_pointer_as_mark(p);
a61af66fc99e Initial load
duke
parents:
diff changeset
601 assert(m->decode_pointer() == p, "encoding must be reversable");
a61af66fc99e Initial load
duke
parents:
diff changeset
602 set_mark(m);
a61af66fc99e Initial load
duke
parents:
diff changeset
603 }
a61af66fc99e Initial load
duke
parents:
diff changeset
604
a61af66fc99e Initial load
duke
parents:
diff changeset
605 // Used by parallel scavengers
a61af66fc99e Initial load
duke
parents:
diff changeset
606 inline bool oopDesc::cas_forward_to(oop p, markOop compare) {
a61af66fc99e Initial load
duke
parents:
diff changeset
607 assert(Universe::heap()->is_in_reserved(p),
a61af66fc99e Initial load
duke
parents:
diff changeset
608 "forwarding to something not in heap");
a61af66fc99e Initial load
duke
parents:
diff changeset
609 markOop m = markOopDesc::encode_pointer_as_mark(p);
a61af66fc99e Initial load
duke
parents:
diff changeset
610 assert(m->decode_pointer() == p, "encoding must be reversable");
a61af66fc99e Initial load
duke
parents:
diff changeset
611 return cas_set_mark(m, compare) == compare;
a61af66fc99e Initial load
duke
parents:
diff changeset
612 }
a61af66fc99e Initial load
duke
parents:
diff changeset
613
a61af66fc99e Initial load
duke
parents:
diff changeset
614 // Note that the forwardee is not the same thing as the displaced_mark.
a61af66fc99e Initial load
duke
parents:
diff changeset
615 // The forwardee is used when copying during scavenge and mark-sweep.
a61af66fc99e Initial load
duke
parents:
diff changeset
616 // It does need to clear the low two locking- and GC-related bits.
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
617 inline oop oopDesc::forwardee() const {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
618 return (oop) mark()->decode_pointer();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
619 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
620
a61af66fc99e Initial load
duke
parents:
diff changeset
621 inline bool oopDesc::has_displaced_mark() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
622 return mark()->has_displaced_mark_helper();
a61af66fc99e Initial load
duke
parents:
diff changeset
623 }
a61af66fc99e Initial load
duke
parents:
diff changeset
624
a61af66fc99e Initial load
duke
parents:
diff changeset
625 inline markOop oopDesc::displaced_mark() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
626 return mark()->displaced_mark_helper();
a61af66fc99e Initial load
duke
parents:
diff changeset
627 }
a61af66fc99e Initial load
duke
parents:
diff changeset
628
a61af66fc99e Initial load
duke
parents:
diff changeset
629 inline void oopDesc::set_displaced_mark(markOop m) {
a61af66fc99e Initial load
duke
parents:
diff changeset
630 mark()->set_displaced_mark_helper(m);
a61af66fc99e Initial load
duke
parents:
diff changeset
631 }
a61af66fc99e Initial load
duke
parents:
diff changeset
632
a61af66fc99e Initial load
duke
parents:
diff changeset
633 // The following method needs to be MT safe.
a61af66fc99e Initial load
duke
parents:
diff changeset
634 inline int oopDesc::age() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
635 assert(!is_forwarded(), "Attempt to read age from forwarded mark");
a61af66fc99e Initial load
duke
parents:
diff changeset
636 if (has_displaced_mark()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
637 return displaced_mark()->age();
a61af66fc99e Initial load
duke
parents:
diff changeset
638 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
639 return mark()->age();
a61af66fc99e Initial load
duke
parents:
diff changeset
640 }
a61af66fc99e Initial load
duke
parents:
diff changeset
641 }
a61af66fc99e Initial load
duke
parents:
diff changeset
642
a61af66fc99e Initial load
duke
parents:
diff changeset
643 inline void oopDesc::incr_age() {
a61af66fc99e Initial load
duke
parents:
diff changeset
644 assert(!is_forwarded(), "Attempt to increment age of forwarded mark");
a61af66fc99e Initial load
duke
parents:
diff changeset
645 if (has_displaced_mark()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
646 set_displaced_mark(displaced_mark()->incr_age());
a61af66fc99e Initial load
duke
parents:
diff changeset
647 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
648 set_mark(mark()->incr_age());
a61af66fc99e Initial load
duke
parents:
diff changeset
649 }
a61af66fc99e Initial load
duke
parents:
diff changeset
650 }
a61af66fc99e Initial load
duke
parents:
diff changeset
651
a61af66fc99e Initial load
duke
parents:
diff changeset
652
a61af66fc99e Initial load
duke
parents:
diff changeset
653 inline intptr_t oopDesc::identity_hash() {
a61af66fc99e Initial load
duke
parents:
diff changeset
654 // Fast case; if the object is unlocked and the hash value is set, no locking is needed
a61af66fc99e Initial load
duke
parents:
diff changeset
655 // Note: The mark must be read into local variable to avoid concurrent updates.
a61af66fc99e Initial load
duke
parents:
diff changeset
656 markOop mrk = mark();
a61af66fc99e Initial load
duke
parents:
diff changeset
657 if (mrk->is_unlocked() && !mrk->has_no_hash()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
658 return mrk->hash();
a61af66fc99e Initial load
duke
parents:
diff changeset
659 } else if (mrk->is_marked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
660 return mrk->hash();
a61af66fc99e Initial load
duke
parents:
diff changeset
661 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
662 return slow_identity_hash();
a61af66fc99e Initial load
duke
parents:
diff changeset
663 }
a61af66fc99e Initial load
duke
parents:
diff changeset
664 }
a61af66fc99e Initial load
duke
parents:
diff changeset
665
a61af66fc99e Initial load
duke
parents:
diff changeset
666 inline void oopDesc::oop_iterate_header(OopClosure* blk) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
667 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
668 blk->do_oop(compressed_klass_addr());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
669 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
670 blk->do_oop(klass_addr());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
671 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
672 }
a61af66fc99e Initial load
duke
parents:
diff changeset
673
a61af66fc99e Initial load
duke
parents:
diff changeset
674 inline void oopDesc::oop_iterate_header(OopClosure* blk, MemRegion mr) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
675 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
676 if (mr.contains(compressed_klass_addr())) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
677 blk->do_oop(compressed_klass_addr());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
678 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
679 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
680 if (mr.contains(klass_addr())) blk->do_oop(klass_addr());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
681 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
682 }
a61af66fc99e Initial load
duke
parents:
diff changeset
683
a61af66fc99e Initial load
duke
parents:
diff changeset
684 inline int oopDesc::adjust_pointers() {
a61af66fc99e Initial load
duke
parents:
diff changeset
685 debug_only(int check_size = size());
a61af66fc99e Initial load
duke
parents:
diff changeset
686 int s = blueprint()->oop_adjust_pointers(this);
a61af66fc99e Initial load
duke
parents:
diff changeset
687 assert(s == check_size, "should be the same");
a61af66fc99e Initial load
duke
parents:
diff changeset
688 return s;
a61af66fc99e Initial load
duke
parents:
diff changeset
689 }
a61af66fc99e Initial load
duke
parents:
diff changeset
690
a61af66fc99e Initial load
duke
parents:
diff changeset
691 inline void oopDesc::adjust_header() {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
692 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
693 MarkSweep::adjust_pointer(compressed_klass_addr());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
694 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
695 MarkSweep::adjust_pointer(klass_addr());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
696 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
697 }
a61af66fc99e Initial load
duke
parents:
diff changeset
698
a61af66fc99e Initial load
duke
parents:
diff changeset
699 #define OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
a61af66fc99e Initial load
duke
parents:
diff changeset
700 \
a61af66fc99e Initial load
duke
parents:
diff changeset
701 inline int oopDesc::oop_iterate(OopClosureType* blk) { \
a61af66fc99e Initial load
duke
parents:
diff changeset
702 SpecializationStats::record_call(); \
a61af66fc99e Initial load
duke
parents:
diff changeset
703 return blueprint()->oop_oop_iterate##nv_suffix(this, blk); \
a61af66fc99e Initial load
duke
parents:
diff changeset
704 } \
a61af66fc99e Initial load
duke
parents:
diff changeset
705 \
a61af66fc99e Initial load
duke
parents:
diff changeset
706 inline int oopDesc::oop_iterate(OopClosureType* blk, MemRegion mr) { \
a61af66fc99e Initial load
duke
parents:
diff changeset
707 SpecializationStats::record_call(); \
a61af66fc99e Initial load
duke
parents:
diff changeset
708 return blueprint()->oop_oop_iterate##nv_suffix##_m(this, blk, mr); \
a61af66fc99e Initial load
duke
parents:
diff changeset
709 }
a61af66fc99e Initial load
duke
parents:
diff changeset
710
a61af66fc99e Initial load
duke
parents:
diff changeset
711 ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_ITERATE_DEFN)
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
712 ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_ITERATE_DEFN)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
713
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
714 #ifndef SERIALGC
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
715 #define OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
716 \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
717 inline int oopDesc::oop_iterate_backwards(OopClosureType* blk) { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
718 SpecializationStats::record_call(); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
719 return blueprint()->oop_oop_iterate_backwards##nv_suffix(this, blk); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
720 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
721
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
722 ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_ITERATE_BACKWARDS_DEFN)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
723 ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_ITERATE_BACKWARDS_DEFN)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 135
diff changeset
724 #endif // !SERIALGC
0
a61af66fc99e Initial load
duke
parents:
diff changeset
725
a61af66fc99e Initial load
duke
parents:
diff changeset
726 inline bool oopDesc::is_shared() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
727 return CompactingPermGenGen::is_shared(this);
a61af66fc99e Initial load
duke
parents:
diff changeset
728 }
a61af66fc99e Initial load
duke
parents:
diff changeset
729
a61af66fc99e Initial load
duke
parents:
diff changeset
730 inline bool oopDesc::is_shared_readonly() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
731 return CompactingPermGenGen::is_shared_readonly(this);
a61af66fc99e Initial load
duke
parents:
diff changeset
732 }
a61af66fc99e Initial load
duke
parents:
diff changeset
733
a61af66fc99e Initial load
duke
parents:
diff changeset
734 inline bool oopDesc::is_shared_readwrite() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
735 return CompactingPermGenGen::is_shared_readwrite(this);
a61af66fc99e Initial load
duke
parents:
diff changeset
736 }