truffle: src/share/vm/oops/oop.inline.hpp annotate

annotate src/share/vm/oops/oop.inline.hpp @ 1972:f95d63e2154a

6989984: Use standard include model for Hospot Summary: Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg

author	stefank
date	Tue, 23 Nov 2010 13:22:55 -0800
parents	d55217dc206f
children	06f017f7daa7 3582bf76420e

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 845 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 845 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 845 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	25 #ifndef SHARE_VM_OOPS_OOP_INLINE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	26 #define SHARE_VM_OOPS_OOP_INLINE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	27
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	28 #include "gc_implementation/shared/ageTable.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	29 #include "gc_implementation/shared/markSweep.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	30 #include "gc_interface/collectedHeap.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	31 #include "memory/barrierSet.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	32 #include "memory/cardTableModRefBS.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	33 #include "memory/compactingPermGenGen.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	34 #include "memory/genCollectedHeap.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	35 #include "memory/generation.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	36 #include "memory/permGen.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	37 #include "memory/specialized_oop_closures.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	38 #include "oops/arrayKlass.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	39 #include "oops/arrayOop.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	40 #include "oops/klass.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	41 #include "oops/klassOop.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	42 #include "oops/markOop.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	43 #include "oops/oop.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	44 #include "runtime/atomic.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	45 #include "runtime/os.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	46 #ifdef TARGET_ARCH_x86
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	47 # include "bytes_x86.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	48 #endif
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	49 #ifdef TARGET_ARCH_sparc
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	50 # include "bytes_sparc.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	51 #endif
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	52 #ifdef TARGET_ARCH_zero
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	53 # include "bytes_zero.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	54 #endif
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	55
0 a61af66fc99e Initial load duke parents: diff changeset	56 // Implementation of all inlined member functions defined in oop.hpp
a61af66fc99e Initial load duke parents: diff changeset	57 // We need a separate file to avoid circular references
a61af66fc99e Initial load duke parents: diff changeset	58
a61af66fc99e Initial load duke parents: diff changeset	59 inline void oopDesc::release_set_mark(markOop m) {
a61af66fc99e Initial load duke parents: diff changeset	60 OrderAccess::release_store_ptr(&_mark, m);
a61af66fc99e Initial load duke parents: diff changeset	61 }
a61af66fc99e Initial load duke parents: diff changeset	62
a61af66fc99e Initial load duke parents: diff changeset	63 inline markOop oopDesc::cas_set_mark(markOop new_mark, markOop old_mark) {
a61af66fc99e Initial load duke parents: diff changeset	64 return (markOop) Atomic::cmpxchg_ptr(new_mark, &_mark, old_mark);
a61af66fc99e Initial load duke parents: diff changeset	65 }
a61af66fc99e Initial load duke parents: diff changeset	66
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	67 inline klassOop oopDesc::klass() const {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	68 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	69 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	70 } else {
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	71 return _metadata._klass;
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	72 }
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	73 }
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	74
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	75 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	76 // can be NULL in CMS
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	77 if (UseCompressedOops) {
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	78 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	79 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	80 return _metadata._klass;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	81 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	82 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	83
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	84 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	85 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	86 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	87 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	88
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	89 inline oop* oopDesc::klass_addr() {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	90 // 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	91 // UseCompressedOops
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	92 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	93 return (oop*) &_metadata._klass;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	94 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	95
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	96 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	97 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	98 return (narrowOop*) &_metadata._compressed_klass;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	99 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	100
0 a61af66fc99e Initial load duke parents: diff changeset	101 inline void oopDesc::set_klass(klassOop k) {
a61af66fc99e Initial load duke parents: diff changeset	102 // since klasses are promoted no store check is needed
a61af66fc99e Initial load duke parents: diff changeset	103 assert(Universe::is_bootstrapping() \|\| k != NULL, "must be a real klassOop");
a61af66fc99e Initial load duke parents: diff changeset	104 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	105 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	106 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	107 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	108 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	109 }
0 a61af66fc99e Initial load duke parents: diff changeset	110 }
a61af66fc99e Initial load duke parents: diff changeset	111
167 feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	112 inline int oopDesc::klass_gap() const {
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	113 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	114 }
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	115
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	116 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	117 if (UseCompressedOops) {
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	118 (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	119 }
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	120 }
feeb96a45707 6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC coleenp parents: 135 diff changeset	121
0 a61af66fc99e Initial load duke parents: diff changeset	122 inline void oopDesc::set_klass_to_list_ptr(oop k) {
a61af66fc99e Initial load duke parents: diff changeset	123 // This is only to be used during GC, for from-space objects, so no
a61af66fc99e Initial load duke parents: diff changeset	124 // barrier is needed.
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	125 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	126 _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	127 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	128 _metadata._klass = (klassOop)k;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	129 }
0 a61af66fc99e Initial load duke parents: diff changeset	130 }
a61af66fc99e Initial load duke parents: diff changeset	131
a61af66fc99e Initial load duke parents: diff changeset	132 inline void oopDesc::init_mark() { set_mark(markOopDesc::prototype_for_object(this)); }
a61af66fc99e Initial load duke parents: diff changeset	133 inline Klass* oopDesc::blueprint() const { return klass()->klass_part(); }
a61af66fc99e Initial load duke parents: diff changeset	134
a61af66fc99e Initial load duke parents: diff changeset	135 inline bool oopDesc::is_a(klassOop k) const { return blueprint()->is_subtype_of(k); }
a61af66fc99e Initial load duke parents: diff changeset	136
a61af66fc99e Initial load duke parents: diff changeset	137 inline bool oopDesc::is_instance() const { return blueprint()->oop_is_instance(); }
a61af66fc99e Initial load duke parents: diff changeset	138 inline bool oopDesc::is_instanceRef() const { return blueprint()->oop_is_instanceRef(); }
a61af66fc99e Initial load duke parents: diff changeset	139 inline bool oopDesc::is_array() const { return blueprint()->oop_is_array(); }
a61af66fc99e Initial load duke parents: diff changeset	140 inline bool oopDesc::is_objArray() const { return blueprint()->oop_is_objArray(); }
a61af66fc99e Initial load duke parents: diff changeset	141 inline bool oopDesc::is_typeArray() const { return blueprint()->oop_is_typeArray(); }
a61af66fc99e Initial load duke parents: diff changeset	142 inline bool oopDesc::is_javaArray() const { return blueprint()->oop_is_javaArray(); }
a61af66fc99e Initial load duke parents: diff changeset	143 inline bool oopDesc::is_symbol() const { return blueprint()->oop_is_symbol(); }
a61af66fc99e Initial load duke parents: diff changeset	144 inline bool oopDesc::is_klass() const { return blueprint()->oop_is_klass(); }
a61af66fc99e Initial load duke parents: diff changeset	145 inline bool oopDesc::is_thread() const { return blueprint()->oop_is_thread(); }
a61af66fc99e Initial load duke parents: diff changeset	146 inline bool oopDesc::is_method() const { return blueprint()->oop_is_method(); }
a61af66fc99e Initial load duke parents: diff changeset	147 inline bool oopDesc::is_constMethod() const { return blueprint()->oop_is_constMethod(); }
a61af66fc99e Initial load duke parents: diff changeset	148 inline bool oopDesc::is_methodData() const { return blueprint()->oop_is_methodData(); }
a61af66fc99e Initial load duke parents: diff changeset	149 inline bool oopDesc::is_constantPool() const { return blueprint()->oop_is_constantPool(); }
a61af66fc99e Initial load duke parents: diff changeset	150 inline bool oopDesc::is_constantPoolCache() const { return blueprint()->oop_is_constantPoolCache(); }
a61af66fc99e Initial load duke parents: diff changeset	151 inline bool oopDesc::is_compiledICHolder() const { return blueprint()->oop_is_compiledICHolder(); }
a61af66fc99e Initial load duke parents: diff changeset	152
a61af66fc99e Initial load duke parents: diff changeset	153 inline void* oopDesc::field_base(int offset) const { return (void)&((char)this)[offset]; }
a61af66fc99e Initial load duke parents: diff changeset	154
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	155 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	156 inline jbyte* oopDesc::byte_field_addr(int offset) const { return (jbyte*) field_base(offset); }
a61af66fc99e Initial load duke parents: diff changeset	157 inline jchar* oopDesc::char_field_addr(int offset) const { return (jchar*) field_base(offset); }
a61af66fc99e Initial load duke parents: diff changeset	158 inline jboolean* oopDesc::bool_field_addr(int offset) const { return (jboolean*)field_base(offset); }
a61af66fc99e Initial load duke parents: diff changeset	159 inline jint* oopDesc::int_field_addr(int offset) const { return (jint*) field_base(offset); }
a61af66fc99e Initial load duke parents: diff changeset	160 inline jshort* oopDesc::short_field_addr(int offset) const { return (jshort*) field_base(offset); }
a61af66fc99e Initial load duke parents: diff changeset	161 inline jlong* oopDesc::long_field_addr(int offset) const { return (jlong*) field_base(offset); }
a61af66fc99e Initial load duke parents: diff changeset	162 inline jfloat* oopDesc::float_field_addr(int offset) const { return (jfloat*) field_base(offset); }
a61af66fc99e Initial load duke parents: diff changeset	163 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	164 inline address* oopDesc::address_field_addr(int offset) const { return (address*) field_base(offset); }
0 a61af66fc99e Initial load duke parents: diff changeset	165
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	166
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	167 // 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	168 // 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	169 // 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	170 // 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	171 // 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	172
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	173 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	174 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	175
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	176 // 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	177 // 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	178 // 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	179
1571 2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	180 inline bool check_obj_alignment(oop obj) {
2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	181 return (intptr_t)obj % MinObjAlignmentInBytes == 0;
2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	182 }
2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	183
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	184 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	185 assert(!is_null(v), "oop value can never be zero");
1571 2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	186 assert(check_obj_alignment(v), "Address not aligned");
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 710 diff changeset	187 assert(Universe::heap()->is_in_reserved(v), "Address not in heap");
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 518 diff changeset	188 address base = Universe::narrow_oop_base();
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 518 diff changeset	189 int shift = Universe::narrow_oop_shift();
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 518 diff changeset	190 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	191 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	192 uint64_t result = pd >> shift;
135 b7268662a986 6689523: max heap calculation for compressed oops is off by MaxPermSize coleenp parents: 133 diff changeset	193 assert((result & CONST64(0xffffffff00000000)) == 0, "narrow oop overflow");
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 710 diff changeset	194 assert(decode_heap_oop(result) == v, "reversibility");
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	195 return (narrowOop)result;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	196 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	197
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	198 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	199 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	200 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	201
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	202 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	203 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	204 address base = Universe::narrow_oop_base();
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 518 diff changeset	205 int shift = Universe::narrow_oop_shift();
1571 2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	206 oop result = (oop)(void*)((uintptr_t)base + ((uintptr_t)v << shift));
1846 d55217dc206f 6829194: JSR 292 needs to support compressed oops twisti parents: 1579 diff changeset	207 assert(check_obj_alignment(result), err_msg("address not aligned: " PTR_FORMAT, (void*) result));
1571 2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	208 return result;
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	209 }
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 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	212 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	213 }
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 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	216 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	217
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	218 // 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	219 // 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	220 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	221 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	222
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	223 // 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	224 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	225 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	226 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	227 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	228
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	229 // 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	230 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	231 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	232 return decode_heap_oop(*p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	233 }
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 // 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	236 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	237 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	238
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	239 // 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	240 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	241 *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	242 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	243 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	244
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	245 // 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	246 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	247 *p = encode_heap_oop(v);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	248 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	249 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	250
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	251 // 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	252 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	253 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	254 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	255 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	256 narrowOop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	257 OrderAccess::release_store(p, v);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	258 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	259
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	260 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	261 volatile narrowOop* p, oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	262 // 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	263 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	264 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	265
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	266 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	267 volatile oop* p, oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	268 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	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 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	272 oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	273 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	274 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	275 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	276 volatile narrowOop* p, oop v) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	277 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	278 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	279
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	280
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	281 // 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	282 // not headers.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	283 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	284 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	285 // 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	286 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	287 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	288 // 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	289 return decode_heap_oop(old);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	290 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	291 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	292 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	293 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	294
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	295 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	296 volatile HeapWord *dest,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	297 oop compare_value) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	298 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	299 // 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	300 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	301 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	302
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	303 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	304 // 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	305 return decode_heap_oop(old);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	306 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	307 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	308 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	309 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	310
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	311 // 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	312 // 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	313 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	314 return UseCompressedOops ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	315 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	316 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	317 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	318 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	319 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	320 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	321 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	322 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	323 UseCompressedOops ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	324 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	325 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	326 }
0 a61af66fc99e Initial load duke parents: diff changeset	327
a61af66fc99e Initial load duke parents: diff changeset	328 inline jbyte oopDesc::byte_field(int offset) const { return (jbyte) *byte_field_addr(offset); }
a61af66fc99e Initial load duke parents: diff changeset	329 inline void oopDesc::byte_field_put(int offset, jbyte contents) { *byte_field_addr(offset) = (jint) contents; }
a61af66fc99e Initial load duke parents: diff changeset	330
a61af66fc99e Initial load duke parents: diff changeset	331 inline jboolean oopDesc::bool_field(int offset) const { return (jboolean) *bool_field_addr(offset); }
a61af66fc99e Initial load duke parents: diff changeset	332 inline void oopDesc::bool_field_put(int offset, jboolean contents) { *bool_field_addr(offset) = (jint) contents; }
a61af66fc99e Initial load duke parents: diff changeset	333
a61af66fc99e Initial load duke parents: diff changeset	334 inline jchar oopDesc::char_field(int offset) const { return (jchar) *char_field_addr(offset); }
a61af66fc99e Initial load duke parents: diff changeset	335 inline void oopDesc::char_field_put(int offset, jchar contents) { *char_field_addr(offset) = (jint) contents; }
a61af66fc99e Initial load duke parents: diff changeset	336
a61af66fc99e Initial load duke parents: diff changeset	337 inline jint oopDesc::int_field(int offset) const { return *int_field_addr(offset); }
a61af66fc99e Initial load duke parents: diff changeset	338 inline void oopDesc::int_field_put(int offset, jint contents) { *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(int offset) const { return (jshort) *short_field_addr(offset); }
a61af66fc99e Initial load duke parents: diff changeset	341 inline void oopDesc::short_field_put(int offset, jshort contents) { *short_field_addr(offset) = (jint) contents;}
a61af66fc99e Initial load duke parents: diff changeset	342
a61af66fc99e Initial load duke parents: diff changeset	343 inline jlong oopDesc::long_field(int offset) const { return *long_field_addr(offset); }
a61af66fc99e Initial load duke parents: diff changeset	344 inline void oopDesc::long_field_put(int offset, jlong contents) { *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(int offset) const { return *float_field_addr(offset); }
a61af66fc99e Initial load duke parents: diff changeset	347 inline void oopDesc::float_field_put(int offset, jfloat contents) { *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(int offset) const { return *double_field_addr(offset); }
a61af66fc99e Initial load duke parents: diff changeset	350 inline void oopDesc::double_field_put(int offset, jdouble contents) { *double_field_addr(offset) = contents; }
a61af66fc99e Initial load duke parents: diff changeset	351
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	352 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	353 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	354
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	355 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	356 return UseCompressedOops ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	357 decode_heap_oop((narrowOop)
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	358 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	359 : decode_heap_oop((oop)
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	360 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	361 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	362 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	363 UseCompressedOops ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	364 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	365 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	366 }
0 a61af66fc99e Initial load duke parents: diff changeset	367
a61af66fc99e Initial load duke parents: diff changeset	368 inline jbyte oopDesc::byte_field_acquire(int offset) const { return OrderAccess::load_acquire(byte_field_addr(offset)); }
a61af66fc99e Initial load duke parents: diff changeset	369 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	370
a61af66fc99e Initial load duke parents: diff changeset	371 inline jboolean oopDesc::bool_field_acquire(int offset) const { return OrderAccess::load_acquire(bool_field_addr(offset)); }
a61af66fc99e Initial load duke parents: diff changeset	372 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	373
a61af66fc99e Initial load duke parents: diff changeset	374 inline jchar oopDesc::char_field_acquire(int offset) const { return OrderAccess::load_acquire(char_field_addr(offset)); }
a61af66fc99e Initial load duke parents: diff changeset	375 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	376
a61af66fc99e Initial load duke parents: diff changeset	377 inline jint oopDesc::int_field_acquire(int offset) const { return OrderAccess::load_acquire(int_field_addr(offset)); }
a61af66fc99e Initial load duke parents: diff changeset	378 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	379
a61af66fc99e Initial load duke parents: diff changeset	380 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	381 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	382
a61af66fc99e Initial load duke parents: diff changeset	383 inline jlong oopDesc::long_field_acquire(int offset) const { return OrderAccess::load_acquire(long_field_addr(offset)); }
a61af66fc99e Initial load duke parents: diff changeset	384 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	385
a61af66fc99e Initial load duke parents: diff changeset	386 inline jfloat oopDesc::float_field_acquire(int offset) const { return OrderAccess::load_acquire(float_field_addr(offset)); }
a61af66fc99e Initial load duke parents: diff changeset	387 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	388
a61af66fc99e Initial load duke parents: diff changeset	389 inline jdouble oopDesc::double_field_acquire(int offset) const { return OrderAccess::load_acquire(double_field_addr(offset)); }
a61af66fc99e Initial load duke parents: diff changeset	390 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	391
710 e5b0439ef4ae 6655638: dynamic languages need method handles jrose parents: 647 diff changeset	392 inline address oopDesc::address_field_acquire(int offset) const { return (address) OrderAccess::load_ptr_acquire(address_field_addr(offset)); }
e5b0439ef4ae 6655638: dynamic languages need method handles jrose parents: 647 diff changeset	393 inline void oopDesc::release_address_field_put(int offset, address contents) { OrderAccess::release_store_ptr(address_field_addr(offset), contents); }
e5b0439ef4ae 6655638: dynamic languages need method handles jrose parents: 647 diff changeset	394
0 a61af66fc99e Initial load duke parents: diff changeset	395 inline int oopDesc::size_given_klass(Klass* klass) {
a61af66fc99e Initial load duke parents: diff changeset	396 int lh = klass->layout_helper();
a61af66fc99e Initial load duke parents: diff changeset	397 int s = lh >> LogHeapWordSize; // deliver size scaled by wordSize
a61af66fc99e Initial load duke parents: diff changeset	398
a61af66fc99e Initial load duke parents: diff changeset	399 // lh is now a value computed at class initialization that may hint
a61af66fc99e Initial load duke parents: diff changeset	400 // at the size. For instances, this is positive and equal to the
a61af66fc99e Initial load duke parents: diff changeset	401 // size. For arrays, this is negative and provides log2 of the
a61af66fc99e Initial load duke parents: diff changeset	402 // array element size. For other oops, it is zero and thus requires
a61af66fc99e Initial load duke parents: diff changeset	403 // a virtual call.
a61af66fc99e Initial load duke parents: diff changeset	404 //
a61af66fc99e Initial load duke parents: diff changeset	405 // We go to all this trouble because the size computation is at the
a61af66fc99e Initial load duke parents: diff changeset	406 // heart of phase 2 of mark-compaction, and called for every object,
a61af66fc99e Initial load duke parents: diff changeset	407 // alive or dead. So the speed here is equal in importance to the
a61af66fc99e Initial load duke parents: diff changeset	408 // speed of allocation.
a61af66fc99e Initial load duke parents: diff changeset	409
a61af66fc99e Initial load duke parents: diff changeset	410 if (lh <= Klass::_lh_neutral_value) {
a61af66fc99e Initial load duke parents: diff changeset	411 // The most common case is instances; fall through if so.
a61af66fc99e Initial load duke parents: diff changeset	412 if (lh < Klass::_lh_neutral_value) {
a61af66fc99e Initial load duke parents: diff changeset	413 // Second most common case is arrays. We have to fetch the
a61af66fc99e Initial load duke parents: diff changeset	414 // length of the array, shift (multiply) it appropriately,
a61af66fc99e Initial load duke parents: diff changeset	415 // up to wordSize, add the header, and align to object size.
a61af66fc99e Initial load duke parents: diff changeset	416 size_t size_in_bytes;
a61af66fc99e Initial load duke parents: diff changeset	417 #ifdef _M_IA64
a61af66fc99e Initial load duke parents: diff changeset	418 // The Windows Itanium Aug 2002 SDK hoists this load above
a61af66fc99e Initial load duke parents: diff changeset	419 // the check for s < 0. An oop at the end of the heap will
a61af66fc99e Initial load duke parents: diff changeset	420 // cause an access violation if this load is performed on a non
a61af66fc99e Initial load duke parents: diff changeset	421 // array oop. Making the reference volatile prohibits this.
a61af66fc99e Initial load duke parents: diff changeset	422 // (%%% please explain by what magic the length is actually fetched!)
a61af66fc99e Initial load duke parents: diff changeset	423 volatile int *array_length;
a61af66fc99e Initial load duke parents: diff changeset	424 array_length = (volatile int *)( (intptr_t)this +
a61af66fc99e Initial load duke parents: diff changeset	425 arrayOopDesc::length_offset_in_bytes() );
a61af66fc99e Initial load duke parents: diff changeset	426 assert(array_length > 0, "Integer arithmetic problem somewhere");
a61af66fc99e Initial load duke parents: diff changeset	427 // Put into size_t to avoid overflow.
a61af66fc99e Initial load duke parents: diff changeset	428 size_in_bytes = (size_t) array_length;
a61af66fc99e Initial load duke parents: diff changeset	429 size_in_bytes = size_in_bytes << Klass::layout_helper_log2_element_size(lh);
a61af66fc99e Initial load duke parents: diff changeset	430 #else
a61af66fc99e Initial load duke parents: diff changeset	431 size_t array_length = (size_t) ((arrayOop)this)->length();
a61af66fc99e Initial load duke parents: diff changeset	432 size_in_bytes = array_length << Klass::layout_helper_log2_element_size(lh);
a61af66fc99e Initial load duke parents: diff changeset	433 #endif
a61af66fc99e Initial load duke parents: diff changeset	434 size_in_bytes += Klass::layout_helper_header_size(lh);
a61af66fc99e Initial load duke parents: diff changeset	435
a61af66fc99e Initial load duke parents: diff changeset	436 // This code could be simplified, but by keeping array_header_in_bytes
a61af66fc99e Initial load duke parents: diff changeset	437 // in units of bytes and doing it this way we can round up just once,
a61af66fc99e Initial load duke parents: diff changeset	438 // skipping the intermediate round to HeapWordSize. Cast the result
a61af66fc99e Initial load duke parents: diff changeset	439 // of round_to to size_t to guarantee unsigned division == right shift.
a61af66fc99e Initial load duke parents: diff changeset	440 s = (int)((size_t)round_to(size_in_bytes, MinObjAlignmentInBytes) /
a61af66fc99e Initial load duke parents: diff changeset	441 HeapWordSize);
a61af66fc99e Initial load duke parents: diff changeset	442
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	443 // UseParNewGC, UseParallelGC and UseG1GC can change the length field
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	444 // 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	445 // 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	446 // 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	447 // a concurrent change.
0 a61af66fc99e Initial load duke parents: diff changeset	448 // UseParNewGC also runs with promotion labs (which look like int
a61af66fc99e Initial load duke parents: diff changeset	449 // filler arrays) which are subject to changing their declared size
a61af66fc99e Initial load duke parents: diff changeset	450 // when finally retiring a PLAB; this also can cause the first disjunct
a61af66fc99e Initial load duke parents: diff changeset	451 // to fail for another worker thread that is concurrently walking the block
a61af66fc99e Initial load duke parents: diff changeset	452 // offset table. Both these invariant failures are benign for their
a61af66fc99e Initial load duke parents: diff changeset	453 // current uses; we relax the assertion checking to cover these two cases below:
a61af66fc99e Initial load duke parents: diff changeset	454 // is_objArray() && is_forwarded() // covers first scenario above
a61af66fc99e Initial load duke parents: diff changeset	455 // \|\| is_typeArray() // covers second scenario above
a61af66fc99e Initial load duke parents: diff changeset	456 // 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	457 // technique, we will need to suitably modify the assertion.
0 a61af66fc99e Initial load duke parents: diff changeset	458 assert((s == klass->oop_size(this)) \|\|
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	459 (Universe::heap()->is_gc_active() &&
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	460 ((is_typeArray() && UseParNewGC) \|\|
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	461 (is_objArray() && is_forwarded() && (UseParNewGC \|\| UseParallelGC \|\| UseG1GC)))),
0 a61af66fc99e Initial load duke parents: diff changeset	462 "wrong array object size");
a61af66fc99e Initial load duke parents: diff changeset	463 } else {
a61af66fc99e Initial load duke parents: diff changeset	464 // Must be zero, so bite the bullet and take the virtual call.
a61af66fc99e Initial load duke parents: diff changeset	465 s = klass->oop_size(this);
a61af66fc99e Initial load duke parents: diff changeset	466 }
a61af66fc99e Initial load duke parents: diff changeset	467 }
a61af66fc99e Initial load duke parents: diff changeset	468
a61af66fc99e Initial load duke parents: diff changeset	469 assert(s % MinObjAlignment == 0, "alignment check");
a61af66fc99e Initial load duke parents: diff changeset	470 assert(s > 0, "Bad size calculated");
a61af66fc99e Initial load duke parents: diff changeset	471 return s;
a61af66fc99e Initial load duke parents: diff changeset	472 }
a61af66fc99e Initial load duke parents: diff changeset	473
a61af66fc99e Initial load duke parents: diff changeset	474
a61af66fc99e Initial load duke parents: diff changeset	475 inline int oopDesc::size() {
a61af66fc99e Initial load duke parents: diff changeset	476 return size_given_klass(blueprint());
a61af66fc99e Initial load duke parents: diff changeset	477 }
a61af66fc99e Initial load duke parents: diff changeset	478
a61af66fc99e Initial load duke parents: diff changeset	479 inline bool oopDesc::is_parsable() {
a61af66fc99e Initial load duke parents: diff changeset	480 return blueprint()->oop_is_parsable(this);
a61af66fc99e Initial load duke parents: diff changeset	481 }
a61af66fc99e Initial load duke parents: diff changeset	482
518 0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark" jmasa parents: 454 diff changeset	483 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	484 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	485 }
0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark" jmasa parents: 454 diff changeset	486
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	487 inline void update_barrier_set(void* p, oop v) {
0 a61af66fc99e Initial load duke parents: diff changeset	488 assert(oopDesc::bs() != NULL, "Uninitialized bs in oop!");
a61af66fc99e Initial load duke parents: diff changeset	489 oopDesc::bs()->write_ref_field(p, v);
a61af66fc99e Initial load duke parents: diff changeset	490 }
a61af66fc99e Initial load duke parents: diff changeset	491
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 710 diff changeset	492 template <class T> inline void update_barrier_set_pre(T* p, oop v) {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	493 oopDesc::bs()->write_ref_field_pre(p, v);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	494 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	495
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	496 template <class T> inline void oop_store(T* p, oop v) {
0 a61af66fc99e Initial load duke parents: diff changeset	497 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	498 oop_store((volatile T*)p, v);
0 a61af66fc99e Initial load duke parents: diff changeset	499 } else {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	500 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	501 oopDesc::encode_store_heap_oop(p, v);
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 710 diff changeset	502 update_barrier_set((void*)p, v); // cast away type
0 a61af66fc99e Initial load duke parents: diff changeset	503 }
a61af66fc99e Initial load duke parents: diff changeset	504 }
a61af66fc99e Initial load duke parents: diff changeset	505
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	506 template <class T> inline void oop_store(volatile T* p, oop v) {
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 710 diff changeset	507 update_barrier_set_pre((T*)p, v); // cast away volatile
0 a61af66fc99e Initial load duke parents: diff changeset	508 // 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	509 oopDesc::release_encode_store_heap_oop(p, v);
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 710 diff changeset	510 update_barrier_set((void*)p, v); // cast away type
0 a61af66fc99e Initial load duke parents: diff changeset	511 }
a61af66fc99e Initial load duke parents: diff changeset	512
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	513 template <class T> inline void oop_store_without_check(T* p, oop v) {
0 a61af66fc99e Initial load duke parents: diff changeset	514 // XXX YSR FIX ME!!!
a61af66fc99e Initial load duke parents: diff changeset	515 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	516 oop_store(p, v);
0 a61af66fc99e Initial load duke parents: diff changeset	517 } else {
a61af66fc99e Initial load duke parents: diff changeset	518 assert(!Universe::heap()->barrier_set()->write_ref_needs_barrier(p, v),
a61af66fc99e Initial load duke parents: diff changeset	519 "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	520 oopDesc::encode_store_heap_oop(p, v);
0 a61af66fc99e Initial load duke parents: diff changeset	521 }
a61af66fc99e Initial load duke parents: diff changeset	522 }
a61af66fc99e Initial load duke parents: diff changeset	523
a61af66fc99e Initial load duke parents: diff changeset	524 // 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	525 template <class T> inline void oop_store_without_check(volatile T* p, oop v) {
0 a61af66fc99e Initial load duke parents: diff changeset	526 // XXX YSR FIX ME!!!
a61af66fc99e Initial load duke parents: diff changeset	527 if (always_do_update_barrier) {
a61af66fc99e Initial load duke parents: diff changeset	528 oop_store(p, v);
a61af66fc99e Initial load duke parents: diff changeset	529 } else {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	530 assert(!Universe::heap()->barrier_set()->write_ref_needs_barrier((T*)p, v),
0 a61af66fc99e Initial load duke parents: diff changeset	531 "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	532 oopDesc::release_encode_store_heap_oop(p, v);
0 a61af66fc99e Initial load duke parents: diff changeset	533 }
a61af66fc99e Initial load duke parents: diff changeset	534 }
a61af66fc99e Initial load duke parents: diff changeset	535
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	536 // 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	537 // (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	538 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	539 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	540 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	541 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	542 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	543 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	544 }
0 a61af66fc99e Initial load duke parents: diff changeset	545
a61af66fc99e Initial load duke parents: diff changeset	546 // Used only for markSweep, scavenging
a61af66fc99e Initial load duke parents: diff changeset	547 inline bool oopDesc::is_gc_marked() const {
a61af66fc99e Initial load duke parents: diff changeset	548 return mark()->is_marked();
a61af66fc99e Initial load duke parents: diff changeset	549 }
a61af66fc99e Initial load duke parents: diff changeset	550
a61af66fc99e Initial load duke parents: diff changeset	551 inline bool oopDesc::is_locked() const {
a61af66fc99e Initial load duke parents: diff changeset	552 return mark()->is_locked();
a61af66fc99e Initial load duke parents: diff changeset	553 }
a61af66fc99e Initial load duke parents: diff changeset	554
a61af66fc99e Initial load duke parents: diff changeset	555 inline bool oopDesc::is_unlocked() const {
a61af66fc99e Initial load duke parents: diff changeset	556 return mark()->is_unlocked();
a61af66fc99e Initial load duke parents: diff changeset	557 }
a61af66fc99e Initial load duke parents: diff changeset	558
a61af66fc99e Initial load duke parents: diff changeset	559 inline bool oopDesc::has_bias_pattern() const {
a61af66fc99e Initial load duke parents: diff changeset	560 return mark()->has_bias_pattern();
a61af66fc99e Initial load duke parents: diff changeset	561 }
a61af66fc99e Initial load duke parents: diff changeset	562
a61af66fc99e Initial load duke parents: diff changeset	563
a61af66fc99e Initial load duke parents: diff changeset	564 // used only for asserts
a61af66fc99e Initial load duke parents: diff changeset	565 inline bool oopDesc::is_oop(bool ignore_mark_word) const {
a61af66fc99e Initial load duke parents: diff changeset	566 oop obj = (oop) this;
a61af66fc99e Initial load duke parents: diff changeset	567 if (!check_obj_alignment(obj)) return false;
a61af66fc99e Initial load duke parents: diff changeset	568 if (!Universe::heap()->is_in_reserved(obj)) return false;
a61af66fc99e Initial load duke parents: diff changeset	569 // obj is aligned and accessible in heap
a61af66fc99e Initial load duke parents: diff changeset	570 // try to find metaclass cycle safely without seg faulting on bad input
a61af66fc99e Initial load duke parents: diff changeset	571 // we should reach klassKlassObj by following klass link at most 3 times
a61af66fc99e Initial load duke parents: diff changeset	572 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	573 obj = obj->klass_or_null();
0 a61af66fc99e Initial load duke parents: diff changeset	574 // klass should be aligned and in permspace
a61af66fc99e Initial load duke parents: diff changeset	575 if (!check_obj_alignment(obj)) return false;
a61af66fc99e Initial load duke parents: diff changeset	576 if (!Universe::heap()->is_in_permanent(obj)) return false;
a61af66fc99e Initial load duke parents: diff changeset	577 }
a61af66fc99e Initial load duke parents: diff changeset	578 if (obj != Universe::klassKlassObj()) {
a61af66fc99e Initial load duke parents: diff changeset	579 // During a dump, the _klassKlassObj moved to a shared space.
a61af66fc99e Initial load duke parents: diff changeset	580 if (DumpSharedSpaces && Universe::klassKlassObj()->is_shared()) {
a61af66fc99e Initial load duke parents: diff changeset	581 return true;
a61af66fc99e Initial load duke parents: diff changeset	582 }
a61af66fc99e Initial load duke parents: diff changeset	583 return false;
a61af66fc99e Initial load duke parents: diff changeset	584 }
a61af66fc99e Initial load duke parents: diff changeset	585
a61af66fc99e Initial load duke parents: diff changeset	586 // Header verification: the mark is typically non-NULL. If we're
a61af66fc99e Initial load duke parents: diff changeset	587 // at a safepoint, it must not be null.
a61af66fc99e Initial load duke parents: diff changeset	588 // Outside of a safepoint, the header could be changing (for example,
a61af66fc99e Initial load duke parents: diff changeset	589 // another thread could be inflating a lock on this object).
a61af66fc99e Initial load duke parents: diff changeset	590 if (ignore_mark_word) {
a61af66fc99e Initial load duke parents: diff changeset	591 return true;
a61af66fc99e Initial load duke parents: diff changeset	592 }
a61af66fc99e Initial load duke parents: diff changeset	593 if (mark() != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	594 return true;
a61af66fc99e Initial load duke parents: diff changeset	595 }
a61af66fc99e Initial load duke parents: diff changeset	596 return !SafepointSynchronize::is_at_safepoint();
a61af66fc99e Initial load duke parents: diff changeset	597 }
a61af66fc99e Initial load duke parents: diff changeset	598
a61af66fc99e Initial load duke parents: diff changeset	599
a61af66fc99e Initial load duke parents: diff changeset	600 // used only for asserts
a61af66fc99e Initial load duke parents: diff changeset	601 inline bool oopDesc::is_oop_or_null(bool ignore_mark_word) const {
a61af66fc99e Initial load duke parents: diff changeset	602 return this == NULL ? true : is_oop(ignore_mark_word);
a61af66fc99e Initial load duke parents: diff changeset	603 }
a61af66fc99e Initial load duke parents: diff changeset	604
a61af66fc99e Initial load duke parents: diff changeset	605 #ifndef PRODUCT
a61af66fc99e Initial load duke parents: diff changeset	606 // used only for asserts
a61af66fc99e Initial load duke parents: diff changeset	607 inline bool oopDesc::is_unlocked_oop() const {
a61af66fc99e Initial load duke parents: diff changeset	608 if (!Universe::heap()->is_in_reserved(this)) return false;
a61af66fc99e Initial load duke parents: diff changeset	609 return mark()->is_unlocked();
a61af66fc99e Initial load duke parents: diff changeset	610 }
a61af66fc99e Initial load duke parents: diff changeset	611 #endif // PRODUCT
a61af66fc99e Initial load duke parents: diff changeset	612
a61af66fc99e Initial load duke parents: diff changeset	613 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	614 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	615 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	616 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	617 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	618 }
0 a61af66fc99e Initial load duke parents: diff changeset	619 }
a61af66fc99e Initial load duke parents: diff changeset	620
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	621 inline void oopDesc::follow_contents(void) {
0 a61af66fc99e Initial load duke parents: diff changeset	622 assert (is_gc_marked(), "should be marked");
a61af66fc99e Initial load duke parents: diff changeset	623 blueprint()->oop_follow_contents(this);
a61af66fc99e Initial load duke parents: diff changeset	624 }
a61af66fc99e Initial load duke parents: diff changeset	625
a61af66fc99e Initial load duke parents: diff changeset	626
a61af66fc99e Initial load duke parents: diff changeset	627 // Used by scavengers
a61af66fc99e Initial load duke parents: diff changeset	628
a61af66fc99e Initial load duke parents: diff changeset	629 inline bool oopDesc::is_forwarded() const {
a61af66fc99e Initial load duke parents: diff changeset	630 // The extra heap check is needed since the obj might be locked, in which case the
a61af66fc99e Initial load duke parents: diff changeset	631 // mark would point to a stack location and have the sentinel bit cleared
a61af66fc99e Initial load duke parents: diff changeset	632 return mark()->is_marked();
a61af66fc99e Initial load duke parents: diff changeset	633 }
a61af66fc99e Initial load duke parents: diff changeset	634
a61af66fc99e Initial load duke parents: diff changeset	635 // Used by scavengers
a61af66fc99e Initial load duke parents: diff changeset	636 inline void oopDesc::forward_to(oop p) {
1571 2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	637 assert(check_obj_alignment(p),
2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	638 "forwarding to something not aligned");
0 a61af66fc99e Initial load duke parents: diff changeset	639 assert(Universe::heap()->is_in_reserved(p),
a61af66fc99e Initial load duke parents: diff changeset	640 "forwarding to something not in heap");
a61af66fc99e Initial load duke parents: diff changeset	641 markOop m = markOopDesc::encode_pointer_as_mark(p);
a61af66fc99e Initial load duke parents: diff changeset	642 assert(m->decode_pointer() == p, "encoding must be reversable");
a61af66fc99e Initial load duke parents: diff changeset	643 set_mark(m);
a61af66fc99e Initial load duke parents: diff changeset	644 }
a61af66fc99e Initial load duke parents: diff changeset	645
a61af66fc99e Initial load duke parents: diff changeset	646 // Used by parallel scavengers
a61af66fc99e Initial load duke parents: diff changeset	647 inline bool oopDesc::cas_forward_to(oop p, markOop compare) {
1571 2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	648 assert(check_obj_alignment(p),
2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 845 diff changeset	649 "forwarding to something not aligned");
0 a61af66fc99e Initial load duke parents: diff changeset	650 assert(Universe::heap()->is_in_reserved(p),
a61af66fc99e Initial load duke parents: diff changeset	651 "forwarding to something not in heap");
a61af66fc99e Initial load duke parents: diff changeset	652 markOop m = markOopDesc::encode_pointer_as_mark(p);
a61af66fc99e Initial load duke parents: diff changeset	653 assert(m->decode_pointer() == p, "encoding must be reversable");
a61af66fc99e Initial load duke parents: diff changeset	654 return cas_set_mark(m, compare) == compare;
a61af66fc99e Initial load duke parents: diff changeset	655 }
a61af66fc99e Initial load duke parents: diff changeset	656
a61af66fc99e Initial load duke parents: diff changeset	657 // Note that the forwardee is not the same thing as the displaced_mark.
a61af66fc99e Initial load duke parents: diff changeset	658 // The forwardee is used when copying during scavenge and mark-sweep.
a61af66fc99e Initial load duke parents: diff changeset	659 // 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	660 inline oop oopDesc::forwardee() const {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	661 return (oop) mark()->decode_pointer();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	662 }
0 a61af66fc99e Initial load duke parents: diff changeset	663
a61af66fc99e Initial load duke parents: diff changeset	664 inline bool oopDesc::has_displaced_mark() const {
a61af66fc99e Initial load duke parents: diff changeset	665 return mark()->has_displaced_mark_helper();
a61af66fc99e Initial load duke parents: diff changeset	666 }
a61af66fc99e Initial load duke parents: diff changeset	667
a61af66fc99e Initial load duke parents: diff changeset	668 inline markOop oopDesc::displaced_mark() const {
a61af66fc99e Initial load duke parents: diff changeset	669 return mark()->displaced_mark_helper();
a61af66fc99e Initial load duke parents: diff changeset	670 }
a61af66fc99e Initial load duke parents: diff changeset	671
a61af66fc99e Initial load duke parents: diff changeset	672 inline void oopDesc::set_displaced_mark(markOop m) {
a61af66fc99e Initial load duke parents: diff changeset	673 mark()->set_displaced_mark_helper(m);
a61af66fc99e Initial load duke parents: diff changeset	674 }
a61af66fc99e Initial load duke parents: diff changeset	675
a61af66fc99e Initial load duke parents: diff changeset	676 // The following method needs to be MT safe.
a61af66fc99e Initial load duke parents: diff changeset	677 inline int oopDesc::age() const {
a61af66fc99e Initial load duke parents: diff changeset	678 assert(!is_forwarded(), "Attempt to read age from forwarded mark");
a61af66fc99e Initial load duke parents: diff changeset	679 if (has_displaced_mark()) {
a61af66fc99e Initial load duke parents: diff changeset	680 return displaced_mark()->age();
a61af66fc99e Initial load duke parents: diff changeset	681 } else {
a61af66fc99e Initial load duke parents: diff changeset	682 return mark()->age();
a61af66fc99e Initial load duke parents: diff changeset	683 }
a61af66fc99e Initial load duke parents: diff changeset	684 }
a61af66fc99e Initial load duke parents: diff changeset	685
a61af66fc99e Initial load duke parents: diff changeset	686 inline void oopDesc::incr_age() {
a61af66fc99e Initial load duke parents: diff changeset	687 assert(!is_forwarded(), "Attempt to increment age of forwarded mark");
a61af66fc99e Initial load duke parents: diff changeset	688 if (has_displaced_mark()) {
a61af66fc99e Initial load duke parents: diff changeset	689 set_displaced_mark(displaced_mark()->incr_age());
a61af66fc99e Initial load duke parents: diff changeset	690 } else {
a61af66fc99e Initial load duke parents: diff changeset	691 set_mark(mark()->incr_age());
a61af66fc99e Initial load duke parents: diff changeset	692 }
a61af66fc99e Initial load duke parents: diff changeset	693 }
a61af66fc99e Initial load duke parents: diff changeset	694
a61af66fc99e Initial load duke parents: diff changeset	695
a61af66fc99e Initial load duke parents: diff changeset	696 inline intptr_t oopDesc::identity_hash() {
a61af66fc99e Initial load duke parents: diff changeset	697 // Fast case; if the object is unlocked and the hash value is set, no locking is needed
a61af66fc99e Initial load duke parents: diff changeset	698 // Note: The mark must be read into local variable to avoid concurrent updates.
a61af66fc99e Initial load duke parents: diff changeset	699 markOop mrk = mark();
a61af66fc99e Initial load duke parents: diff changeset	700 if (mrk->is_unlocked() && !mrk->has_no_hash()) {
a61af66fc99e Initial load duke parents: diff changeset	701 return mrk->hash();
a61af66fc99e Initial load duke parents: diff changeset	702 } else if (mrk->is_marked()) {
a61af66fc99e Initial load duke parents: diff changeset	703 return mrk->hash();
a61af66fc99e Initial load duke parents: diff changeset	704 } else {
a61af66fc99e Initial load duke parents: diff changeset	705 return slow_identity_hash();
a61af66fc99e Initial load duke parents: diff changeset	706 }
a61af66fc99e Initial load duke parents: diff changeset	707 }
a61af66fc99e Initial load duke parents: diff changeset	708
a61af66fc99e Initial load duke parents: diff changeset	709 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	710 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	711 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	712 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	713 blk->do_oop(klass_addr());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	714 }
0 a61af66fc99e Initial load duke parents: diff changeset	715 }
a61af66fc99e Initial load duke parents: diff changeset	716
a61af66fc99e Initial load duke parents: diff changeset	717 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	718 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	719 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	720 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	721 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	722 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	723 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	724 }
0 a61af66fc99e Initial load duke parents: diff changeset	725 }
a61af66fc99e Initial load duke parents: diff changeset	726
a61af66fc99e Initial load duke parents: diff changeset	727 inline int oopDesc::adjust_pointers() {
a61af66fc99e Initial load duke parents: diff changeset	728 debug_only(int check_size = size());
a61af66fc99e Initial load duke parents: diff changeset	729 int s = blueprint()->oop_adjust_pointers(this);
a61af66fc99e Initial load duke parents: diff changeset	730 assert(s == check_size, "should be the same");
a61af66fc99e Initial load duke parents: diff changeset	731 return s;
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 void oopDesc::adjust_header() {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	735 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	736 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	737 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	738 MarkSweep::adjust_pointer(klass_addr());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	739 }
0 a61af66fc99e Initial load duke parents: diff changeset	740 }
a61af66fc99e Initial load duke parents: diff changeset	741
a61af66fc99e Initial load duke parents: diff changeset	742 #define OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
a61af66fc99e Initial load duke parents: diff changeset	743 \
a61af66fc99e Initial load duke parents: diff changeset	744 inline int oopDesc::oop_iterate(OopClosureType* blk) { \
a61af66fc99e Initial load duke parents: diff changeset	745 SpecializationStats::record_call(); \
a61af66fc99e Initial load duke parents: diff changeset	746 return blueprint()->oop_oop_iterate##nv_suffix(this, blk); \
a61af66fc99e Initial load duke parents: diff changeset	747 } \
a61af66fc99e Initial load duke parents: diff changeset	748 \
a61af66fc99e Initial load duke parents: diff changeset	749 inline int oopDesc::oop_iterate(OopClosureType* blk, MemRegion mr) { \
a61af66fc99e Initial load duke parents: diff changeset	750 SpecializationStats::record_call(); \
a61af66fc99e Initial load duke parents: diff changeset	751 return blueprint()->oop_oop_iterate##nv_suffix##_m(this, blk, mr); \
a61af66fc99e Initial load duke parents: diff changeset	752 }
a61af66fc99e Initial load duke parents: diff changeset	753
a61af66fc99e Initial load duke parents: diff changeset	754 ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_ITERATE_DEFN)
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	755 ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_ITERATE_DEFN)
0 a61af66fc99e Initial load duke parents: diff changeset	756
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	757 #ifndef SERIALGC
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	758 #define OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	759 \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	760 inline int oopDesc::oop_iterate_backwards(OopClosureType* blk) { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	761 SpecializationStats::record_call(); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	762 return blueprint()->oop_oop_iterate_backwards##nv_suffix(this, blk); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	763 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	764
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	765 ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_ITERATE_BACKWARDS_DEFN)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	766 ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_ITERATE_BACKWARDS_DEFN)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 135 diff changeset	767 #endif // !SERIALGC
0 a61af66fc99e Initial load duke parents: diff changeset	768
a61af66fc99e Initial load duke parents: diff changeset	769 inline bool oopDesc::is_shared() const {
a61af66fc99e Initial load duke parents: diff changeset	770 return CompactingPermGenGen::is_shared(this);
a61af66fc99e Initial load duke parents: diff changeset	771 }
a61af66fc99e Initial load duke parents: diff changeset	772
a61af66fc99e Initial load duke parents: diff changeset	773 inline bool oopDesc::is_shared_readonly() const {
a61af66fc99e Initial load duke parents: diff changeset	774 return CompactingPermGenGen::is_shared_readonly(this);
a61af66fc99e Initial load duke parents: diff changeset	775 }
a61af66fc99e Initial load duke parents: diff changeset	776
a61af66fc99e Initial load duke parents: diff changeset	777 inline bool oopDesc::is_shared_readwrite() const {
a61af66fc99e Initial load duke parents: diff changeset	778 return CompactingPermGenGen::is_shared_readwrite(this);
a61af66fc99e Initial load duke parents: diff changeset	779 }
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	780
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1846 diff changeset	781 #endif // SHARE_VM_OOPS_OOP_INLINE_HPP

Mercurial > hg > truffle

annotate src/share/vm/oops/oop.inline.hpp @ 1972:f95d63e2154a