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

annotate src/share/vm/oops/klass.cpp @ 10265:92ef81e2f571

8003557: NPG: Klass* const k should be const Klass* k. Summary: With NPG, const KlassOop klass which is in fact a definition converted to Klass* const, which is not the original intention. The right usage is converting them to const Klass*. Reviewed-by: coleenp, kvn Contributed-by: yumin.qi@oracle.com

author	minqi
date	Fri, 10 May 2013 08:27:30 -0700
parents	1fc4d4768b90
children	6bd680e9ea35

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	2 * Copyright (c) 1997, 2013, 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: 1155 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1155 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: 1155 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: 1681 diff changeset	25 #include "precompiled.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	26 #include "classfile/javaClasses.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	27 #include "classfile/dictionary.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1681 diff changeset	28 #include "classfile/systemDictionary.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1681 diff changeset	29 #include "classfile/vmSymbols.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	30 #include "gc_implementation/shared/markSweep.inline.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1681 diff changeset	31 #include "gc_interface/collectedHeap.inline.hpp"
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	32 #include "memory/heapInspection.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	33 #include "memory/metadataFactory.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1681 diff changeset	34 #include "memory/oopFactory.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1681 diff changeset	35 #include "memory/resourceArea.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1681 diff changeset	36 #include "oops/instanceKlass.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1681 diff changeset	37 #include "oops/klass.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1681 diff changeset	38 #include "oops/oop.inline2.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1681 diff changeset	39 #include "runtime/atomic.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	40 #include "utilities/stack.hpp"
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7185 diff changeset	41 #include "utilities/macros.hpp"
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7185 diff changeset	42 #if INCLUDE_ALL_GCS
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	43 #include "gc_implementation/parallelScavenge/psParallelCompact.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	44 #include "gc_implementation/parallelScavenge/psPromotionManager.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	45 #include "gc_implementation/parallelScavenge/psScavenge.hpp"
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7185 diff changeset	46 #endif // INCLUDE_ALL_GCS
0 a61af66fc99e Initial load duke parents: diff changeset	47
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	48 void Klass::set_name(Symbol* n) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	49 _name = n;
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	50 if (_name != NULL) _name->increment_refcount();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	51 }
0 a61af66fc99e Initial load duke parents: diff changeset	52
10265 92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 8751 diff changeset	53 bool Klass::is_subclass_of(const Klass* k) const {
0 a61af66fc99e Initial load duke parents: diff changeset	54 // Run up the super chain and check
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	55 if (this == k) return true;
0 a61af66fc99e Initial load duke parents: diff changeset	56
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	57 Klass* t = const_cast<Klass*>(this)->super();
0 a61af66fc99e Initial load duke parents: diff changeset	58
a61af66fc99e Initial load duke parents: diff changeset	59 while (t != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	60 if (t == k) return true;
6983 070d523b96a7 8001471: Klass::cast() does nothing hseigel parents: 6867 diff changeset	61 t = t->super();
0 a61af66fc99e Initial load duke parents: diff changeset	62 }
a61af66fc99e Initial load duke parents: diff changeset	63 return false;
a61af66fc99e Initial load duke parents: diff changeset	64 }
a61af66fc99e Initial load duke parents: diff changeset	65
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	66 bool Klass::search_secondary_supers(Klass* k) const {
0 a61af66fc99e Initial load duke parents: diff changeset	67 // Put some extra logic here out-of-line, before the search proper.
a61af66fc99e Initial load duke parents: diff changeset	68 // This cuts down the size of the inline method.
a61af66fc99e Initial load duke parents: diff changeset	69
a61af66fc99e Initial load duke parents: diff changeset	70 // This is necessary, since I am never in my own secondary_super list.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	71 if (this == k)
0 a61af66fc99e Initial load duke parents: diff changeset	72 return true;
a61af66fc99e Initial load duke parents: diff changeset	73 // Scan the array-of-objects for a match
a61af66fc99e Initial load duke parents: diff changeset	74 int cnt = secondary_supers()->length();
a61af66fc99e Initial load duke parents: diff changeset	75 for (int i = 0; i < cnt; i++) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	76 if (secondary_supers()->at(i) == k) {
0 a61af66fc99e Initial load duke parents: diff changeset	77 ((Klass*)this)->set_secondary_super_cache(k);
a61af66fc99e Initial load duke parents: diff changeset	78 return true;
a61af66fc99e Initial load duke parents: diff changeset	79 }
a61af66fc99e Initial load duke parents: diff changeset	80 }
a61af66fc99e Initial load duke parents: diff changeset	81 return false;
a61af66fc99e Initial load duke parents: diff changeset	82 }
a61af66fc99e Initial load duke parents: diff changeset	83
a61af66fc99e Initial load duke parents: diff changeset	84 // Return self, except for abstract classes with exactly 1
a61af66fc99e Initial load duke parents: diff changeset	85 // implementor. Then return the 1 concrete implementation.
a61af66fc99e Initial load duke parents: diff changeset	86 Klass *Klass::up_cast_abstract() {
a61af66fc99e Initial load duke parents: diff changeset	87 Klass *r = this;
a61af66fc99e Initial load duke parents: diff changeset	88 while( r->is_abstract() ) { // Receiver is abstract?
a61af66fc99e Initial load duke parents: diff changeset	89 Klass *s = r->subklass(); // Check for exactly 1 subklass
a61af66fc99e Initial load duke parents: diff changeset	90 if( !s \|\| s->next_sibling() ) // Oops; wrong count; give up
a61af66fc99e Initial load duke parents: diff changeset	91 return this; // Return 'this' as a no-progress flag
a61af66fc99e Initial load duke parents: diff changeset	92 r = s; // Loop till find concrete class
a61af66fc99e Initial load duke parents: diff changeset	93 }
a61af66fc99e Initial load duke parents: diff changeset	94 return r; // Return the 1 concrete class
a61af66fc99e Initial load duke parents: diff changeset	95 }
a61af66fc99e Initial load duke parents: diff changeset	96
605 98cb887364d3 6810672: Comment typos twisti parents: 431 diff changeset	97 // Find LCA in class hierarchy
0 a61af66fc99e Initial load duke parents: diff changeset	98 Klass Klass::LCA( Klass k2 ) {
a61af66fc99e Initial load duke parents: diff changeset	99 Klass *k1 = this;
a61af66fc99e Initial load duke parents: diff changeset	100 while( 1 ) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	101 if( k1->is_subtype_of(k2) ) return k2;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	102 if( k2->is_subtype_of(k1) ) return k1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	103 k1 = k1->super();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	104 k2 = k2->super();
0 a61af66fc99e Initial load duke parents: diff changeset	105 }
a61af66fc99e Initial load duke parents: diff changeset	106 }
a61af66fc99e Initial load duke parents: diff changeset	107
a61af66fc99e Initial load duke parents: diff changeset	108
a61af66fc99e Initial load duke parents: diff changeset	109 void Klass::check_valid_for_instantiation(bool throwError, TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	110 ResourceMark rm(THREAD);
a61af66fc99e Initial load duke parents: diff changeset	111 THROW_MSG(throwError ? vmSymbols::java_lang_InstantiationError()
a61af66fc99e Initial load duke parents: diff changeset	112 : vmSymbols::java_lang_InstantiationException(), external_name());
a61af66fc99e Initial load duke parents: diff changeset	113 }
a61af66fc99e Initial load duke parents: diff changeset	114
a61af66fc99e Initial load duke parents: diff changeset	115
a61af66fc99e Initial load duke parents: diff changeset	116 void Klass::copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	117 THROW(vmSymbols::java_lang_ArrayStoreException());
a61af66fc99e Initial load duke parents: diff changeset	118 }
a61af66fc99e Initial load duke parents: diff changeset	119
a61af66fc99e Initial load duke parents: diff changeset	120
a61af66fc99e Initial load duke parents: diff changeset	121 void Klass::initialize(TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	122 ShouldNotReachHere();
a61af66fc99e Initial load duke parents: diff changeset	123 }
a61af66fc99e Initial load duke parents: diff changeset	124
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	125 bool Klass::compute_is_subtype_of(Klass* k) {
0 a61af66fc99e Initial load duke parents: diff changeset	126 assert(k->is_klass(), "argument must be a class");
a61af66fc99e Initial load duke parents: diff changeset	127 return is_subclass_of(k);
a61af66fc99e Initial load duke parents: diff changeset	128 }
a61af66fc99e Initial load duke parents: diff changeset	129
a61af66fc99e Initial load duke parents: diff changeset	130
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	131 Method* Klass::uncached_lookup_method(Symbol* name, Symbol* signature) const {
0 a61af66fc99e Initial load duke parents: diff changeset	132 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	133 tty->print_cr("Error: uncached_lookup_method called on a klass oop."
a61af66fc99e Initial load duke parents: diff changeset	134 " Likely error: reflection method does not correctly"
a61af66fc99e Initial load duke parents: diff changeset	135 " wrap return value in a mirror object.");
a61af66fc99e Initial load duke parents: diff changeset	136 #endif
a61af66fc99e Initial load duke parents: diff changeset	137 ShouldNotReachHere();
a61af66fc99e Initial load duke parents: diff changeset	138 return NULL;
a61af66fc99e Initial load duke parents: diff changeset	139 }
a61af66fc99e Initial load duke parents: diff changeset	140
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	141 void* Klass::operator new(size_t size, ClassLoaderData* loader_data, size_t word_size, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	142 return Metaspace::allocate(loader_data, word_size, /read_only/false,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	143 Metaspace::ClassType, CHECK_NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	144 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	145
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	146 Klass::Klass() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	147 Klass* k = this;
0 a61af66fc99e Initial load duke parents: diff changeset	148
8712 3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8003 diff changeset	149 // Preinitialize supertype information.
3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8003 diff changeset	150 // A later call to initialize_supers() may update these settings:
3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8003 diff changeset	151 set_super(NULL);
3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8003 diff changeset	152 for (juint i = 0; i < Klass::primary_super_limit(); i++) {
3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8003 diff changeset	153 _primary_supers[i] = NULL;
0 a61af66fc99e Initial load duke parents: diff changeset	154 }
8712 3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8003 diff changeset	155 set_secondary_supers(NULL);
3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8003 diff changeset	156 set_secondary_super_cache(NULL);
3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8003 diff changeset	157 _primary_supers[0] = k;
3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8003 diff changeset	158 set_super_check_offset(in_bytes(primary_supers_offset()));
0 a61af66fc99e Initial load duke parents: diff changeset	159
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	160 set_java_mirror(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	161 set_modifier_flags(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	162 set_layout_helper(Klass::_lh_neutral_value);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	163 set_name(NULL);
0 a61af66fc99e Initial load duke parents: diff changeset	164 AccessFlags af;
a61af66fc99e Initial load duke parents: diff changeset	165 af.set_flags(0);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	166 set_access_flags(af);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	167 set_subklass(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	168 set_next_sibling(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	169 set_next_link(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	170 set_alloc_count(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	171 TRACE_SET_KLASS_TRACE_ID(this, 0);
0 a61af66fc99e Initial load duke parents: diff changeset	172
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	173 set_prototype_header(markOopDesc::prototype());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	174 set_biased_lock_revocation_count(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	175 set_last_biased_lock_bulk_revocation_time(0);
0 a61af66fc99e Initial load duke parents: diff changeset	176
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	177 // The klass doesn't have any references at this point.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	178 clear_modified_oops();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	179 clear_accumulated_modified_oops();
0 a61af66fc99e Initial load duke parents: diff changeset	180 }
a61af66fc99e Initial load duke parents: diff changeset	181
a61af66fc99e Initial load duke parents: diff changeset	182 jint Klass::array_layout_helper(BasicType etype) {
a61af66fc99e Initial load duke parents: diff changeset	183 assert(etype >= T_BOOLEAN && etype <= T_OBJECT, "valid etype");
a61af66fc99e Initial load duke parents: diff changeset	184 // Note that T_ARRAY is not allowed here.
a61af66fc99e Initial load duke parents: diff changeset	185 int hsize = arrayOopDesc::base_offset_in_bytes(etype);
29 d5fc211aea19 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM kvn parents: 0 diff changeset	186 int esize = type2aelembytes(etype);
0 a61af66fc99e Initial load duke parents: diff changeset	187 bool isobj = (etype == T_OBJECT);
a61af66fc99e Initial load duke parents: diff changeset	188 int tag = isobj ? _lh_array_tag_obj_value : _lh_array_tag_type_value;
a61af66fc99e Initial load duke parents: diff changeset	189 int lh = array_layout_helper(tag, hsize, etype, exact_log2(esize));
a61af66fc99e Initial load duke parents: diff changeset	190
a61af66fc99e Initial load duke parents: diff changeset	191 assert(lh < (int)_lh_neutral_value, "must look like an array layout");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	192 assert(layout_helper_is_array(lh), "correct kind");
0 a61af66fc99e Initial load duke parents: diff changeset	193 assert(layout_helper_is_objArray(lh) == isobj, "correct kind");
a61af66fc99e Initial load duke parents: diff changeset	194 assert(layout_helper_is_typeArray(lh) == !isobj, "correct kind");
a61af66fc99e Initial load duke parents: diff changeset	195 assert(layout_helper_header_size(lh) == hsize, "correct decode");
a61af66fc99e Initial load duke parents: diff changeset	196 assert(layout_helper_element_type(lh) == etype, "correct decode");
a61af66fc99e Initial load duke parents: diff changeset	197 assert(1 << layout_helper_log2_element_size(lh) == esize, "correct decode");
a61af66fc99e Initial load duke parents: diff changeset	198
a61af66fc99e Initial load duke parents: diff changeset	199 return lh;
a61af66fc99e Initial load duke parents: diff changeset	200 }
a61af66fc99e Initial load duke parents: diff changeset	201
a61af66fc99e Initial load duke parents: diff changeset	202 bool Klass::can_be_primary_super_slow() const {
a61af66fc99e Initial load duke parents: diff changeset	203 if (super() == NULL)
a61af66fc99e Initial load duke parents: diff changeset	204 return true;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	205 else if (super()->super_depth() >= primary_super_limit()-1)
0 a61af66fc99e Initial load duke parents: diff changeset	206 return false;
a61af66fc99e Initial load duke parents: diff changeset	207 else
a61af66fc99e Initial load duke parents: diff changeset	208 return true;
a61af66fc99e Initial load duke parents: diff changeset	209 }
a61af66fc99e Initial load duke parents: diff changeset	210
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	211 void Klass::initialize_supers(Klass* k, TRAPS) {
0 a61af66fc99e Initial load duke parents: diff changeset	212 if (FastSuperclassLimit == 0) {
a61af66fc99e Initial load duke parents: diff changeset	213 // None of the other machinery matters.
a61af66fc99e Initial load duke parents: diff changeset	214 set_super(k);
a61af66fc99e Initial load duke parents: diff changeset	215 return;
a61af66fc99e Initial load duke parents: diff changeset	216 }
a61af66fc99e Initial load duke parents: diff changeset	217 if (k == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	218 set_super(NULL);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	219 _primary_supers[0] = this;
0 a61af66fc99e Initial load duke parents: diff changeset	220 assert(super_depth() == 0, "Object must already be initialized properly");
1142 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1039 diff changeset	221 } else if (k != super() \|\| k == SystemDictionary::Object_klass()) {
4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1039 diff changeset	222 assert(super() == NULL \|\| super() == SystemDictionary::Object_klass(),
0 a61af66fc99e Initial load duke parents: diff changeset	223 "initialize this only once to a non-trivial value");
a61af66fc99e Initial load duke parents: diff changeset	224 set_super(k);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	225 Klass* sup = k;
0 a61af66fc99e Initial load duke parents: diff changeset	226 int sup_depth = sup->super_depth();
a61af66fc99e Initial load duke parents: diff changeset	227 juint my_depth = MIN2(sup_depth + 1, (int)primary_super_limit());
a61af66fc99e Initial load duke parents: diff changeset	228 if (!can_be_primary_super_slow())
a61af66fc99e Initial load duke parents: diff changeset	229 my_depth = primary_super_limit();
a61af66fc99e Initial load duke parents: diff changeset	230 for (juint i = 0; i < my_depth; i++) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	231 _primary_supers[i] = sup->_primary_supers[i];
0 a61af66fc99e Initial load duke parents: diff changeset	232 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	233 Klass* *super_check_cell;
0 a61af66fc99e Initial load duke parents: diff changeset	234 if (my_depth < primary_super_limit()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	235 _primary_supers[my_depth] = this;
0 a61af66fc99e Initial load duke parents: diff changeset	236 super_check_cell = &_primary_supers[my_depth];
a61af66fc99e Initial load duke parents: diff changeset	237 } else {
a61af66fc99e Initial load duke parents: diff changeset	238 // Overflow of the primary_supers array forces me to be secondary.
a61af66fc99e Initial load duke parents: diff changeset	239 super_check_cell = &_secondary_super_cache;
a61af66fc99e Initial load duke parents: diff changeset	240 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	241 set_super_check_offset((address)super_check_cell - (address) this);
0 a61af66fc99e Initial load duke parents: diff changeset	242
a61af66fc99e Initial load duke parents: diff changeset	243 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	244 {
a61af66fc99e Initial load duke parents: diff changeset	245 juint j = super_depth();
a61af66fc99e Initial load duke parents: diff changeset	246 assert(j == my_depth, "computed accessor gets right answer");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	247 Klass* t = this;
6983 070d523b96a7 8001471: Klass::cast() does nothing hseigel parents: 6867 diff changeset	248 while (!t->can_be_primary_super()) {
070d523b96a7 8001471: Klass::cast() does nothing hseigel parents: 6867 diff changeset	249 t = t->super();
070d523b96a7 8001471: Klass::cast() does nothing hseigel parents: 6867 diff changeset	250 j = t->super_depth();
0 a61af66fc99e Initial load duke parents: diff changeset	251 }
a61af66fc99e Initial load duke parents: diff changeset	252 for (juint j1 = j+1; j1 < primary_super_limit(); j1++) {
a61af66fc99e Initial load duke parents: diff changeset	253 assert(primary_super_of_depth(j1) == NULL, "super list padding");
a61af66fc99e Initial load duke parents: diff changeset	254 }
a61af66fc99e Initial load duke parents: diff changeset	255 while (t != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	256 assert(primary_super_of_depth(j) == t, "super list initialization");
6983 070d523b96a7 8001471: Klass::cast() does nothing hseigel parents: 6867 diff changeset	257 t = t->super();
0 a61af66fc99e Initial load duke parents: diff changeset	258 --j;
a61af66fc99e Initial load duke parents: diff changeset	259 }
a61af66fc99e Initial load duke parents: diff changeset	260 assert(j == (juint)-1, "correct depth count");
a61af66fc99e Initial load duke parents: diff changeset	261 }
a61af66fc99e Initial load duke parents: diff changeset	262 #endif
a61af66fc99e Initial load duke parents: diff changeset	263 }
a61af66fc99e Initial load duke parents: diff changeset	264
a61af66fc99e Initial load duke parents: diff changeset	265 if (secondary_supers() == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	266 KlassHandle this_kh (THREAD, this);
a61af66fc99e Initial load duke parents: diff changeset	267
a61af66fc99e Initial load duke parents: diff changeset	268 // Now compute the list of secondary supertypes.
a61af66fc99e Initial load duke parents: diff changeset	269 // Secondaries can occasionally be on the super chain,
a61af66fc99e Initial load duke parents: diff changeset	270 // if the inline "_primary_supers" array overflows.
a61af66fc99e Initial load duke parents: diff changeset	271 int extras = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	272 Klass* p;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	273 for (p = super(); !(p == NULL \|\| p->can_be_primary_super()); p = p->super()) {
0 a61af66fc99e Initial load duke parents: diff changeset	274 ++extras;
a61af66fc99e Initial load duke parents: diff changeset	275 }
a61af66fc99e Initial load duke parents: diff changeset	276
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	277 ResourceMark rm(THREAD); // need to reclaim GrowableArrays allocated below
0 a61af66fc99e Initial load duke parents: diff changeset	278
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	279 // Compute the "real" non-extra secondaries.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	280 GrowableArray<Klass> secondaries = compute_secondary_supers(extras);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	281 if (secondaries == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	282 // secondary_supers set by compute_secondary_supers
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	283 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	284 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	285
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	286 GrowableArray<Klass> primaries = new GrowableArray<Klass*>(extras);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	287
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	288 for (p = this_kh->super(); !(p == NULL \|\| p->can_be_primary_super()); p = p->super()) {
0 a61af66fc99e Initial load duke parents: diff changeset	289 int i; // Scan for overflow primaries being duplicates of 2nd'arys
a61af66fc99e Initial load duke parents: diff changeset	290
a61af66fc99e Initial load duke parents: diff changeset	291 // This happens frequently for very deeply nested arrays: the
a61af66fc99e Initial load duke parents: diff changeset	292 // primary superclass chain overflows into the secondary. The
a61af66fc99e Initial load duke parents: diff changeset	293 // secondary list contains the element_klass's secondaries with
a61af66fc99e Initial load duke parents: diff changeset	294 // an extra array dimension added. If the element_klass's
a61af66fc99e Initial load duke parents: diff changeset	295 // secondary list already contains some primary overflows, they
a61af66fc99e Initial load duke parents: diff changeset	296 // (with the extra level of array-ness) will collide with the
a61af66fc99e Initial load duke parents: diff changeset	297 // normal primary superclass overflows.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	298 for( i = 0; i < secondaries->length(); i++ ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	299 if( secondaries->at(i) == p )
0 a61af66fc99e Initial load duke parents: diff changeset	300 break;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	301 }
0 a61af66fc99e Initial load duke parents: diff changeset	302 if( i < secondaries->length() )
a61af66fc99e Initial load duke parents: diff changeset	303 continue; // It's a dup, don't put it in
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	304 primaries->push(p);
0 a61af66fc99e Initial load duke parents: diff changeset	305 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	306 // Combine the two arrays into a metadata object to pack the array.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	307 // The primaries are added in the reverse order, then the secondaries.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	308 int new_length = primaries->length() + secondaries->length();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	309 Array<Klass> s2 = MetadataFactory::new_array<Klass*>(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	310 class_loader_data(), new_length, CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	311 int fill_p = primaries->length();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	312 for (int j = 0; j < fill_p; j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	313 s2->at_put(j, primaries->pop()); // add primaries in reverse order.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	314 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	315 for( int j = 0; j < secondaries->length(); j++ ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	316 s2->at_put(j+fill_p, secondaries->at(j)); // add secondaries on the end.
0 a61af66fc99e Initial load duke parents: diff changeset	317 }
a61af66fc99e Initial load duke parents: diff changeset	318
a61af66fc99e Initial load duke parents: diff changeset	319 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	320 // We must not copy any NULL placeholders left over from bootstrap.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	321 for (int j = 0; j < s2->length(); j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	322 assert(s2->at(j) != NULL, "correct bootstrapping order");
0 a61af66fc99e Initial load duke parents: diff changeset	323 }
a61af66fc99e Initial load duke parents: diff changeset	324 #endif
a61af66fc99e Initial load duke parents: diff changeset	325
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	326 this_kh->set_secondary_supers(s2);
0 a61af66fc99e Initial load duke parents: diff changeset	327 }
a61af66fc99e Initial load duke parents: diff changeset	328 }
a61af66fc99e Initial load duke parents: diff changeset	329
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	330 GrowableArray<Klass> Klass::compute_secondary_supers(int num_extra_slots) {
0 a61af66fc99e Initial load duke parents: diff changeset	331 assert(num_extra_slots == 0, "override for complex klasses");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	332 set_secondary_supers(Universe::the_empty_klass_array());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	333 return NULL;
0 a61af66fc99e Initial load duke parents: diff changeset	334 }
a61af66fc99e Initial load duke parents: diff changeset	335
a61af66fc99e Initial load duke parents: diff changeset	336
a61af66fc99e Initial load duke parents: diff changeset	337 Klass* Klass::subklass() const {
6983 070d523b96a7 8001471: Klass::cast() does nothing hseigel parents: 6867 diff changeset	338 return _subklass == NULL ? NULL : _subklass;
0 a61af66fc99e Initial load duke parents: diff changeset	339 }
a61af66fc99e Initial load duke parents: diff changeset	340
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	341 InstanceKlass* Klass::superklass() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	342 assert(super() == NULL \|\| super()->oop_is_instance(), "must be instance klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	343 return _super == NULL ? NULL : InstanceKlass::cast(_super);
0 a61af66fc99e Initial load duke parents: diff changeset	344 }
a61af66fc99e Initial load duke parents: diff changeset	345
a61af66fc99e Initial load duke parents: diff changeset	346 Klass* Klass::next_sibling() const {
6983 070d523b96a7 8001471: Klass::cast() does nothing hseigel parents: 6867 diff changeset	347 return _next_sibling == NULL ? NULL : _next_sibling;
0 a61af66fc99e Initial load duke parents: diff changeset	348 }
a61af66fc99e Initial load duke parents: diff changeset	349
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	350 void Klass::set_subklass(Klass* s) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	351 assert(s != this, "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	352 _subklass = s;
0 a61af66fc99e Initial load duke parents: diff changeset	353 }
a61af66fc99e Initial load duke parents: diff changeset	354
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	355 void Klass::set_next_sibling(Klass* s) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	356 assert(s != this, "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	357 _next_sibling = s;
0 a61af66fc99e Initial load duke parents: diff changeset	358 }
a61af66fc99e Initial load duke parents: diff changeset	359
a61af66fc99e Initial load duke parents: diff changeset	360 void Klass::append_to_sibling_list() {
6867 bdb5f8c9978b 7199068: NPG: SharedSkipVerify is meaningless coleenp parents: 6831 diff changeset	361 debug_only(verify();)
0 a61af66fc99e Initial load duke parents: diff changeset	362 // add ourselves to superklass' subklass list
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	363 InstanceKlass* super = superklass();
0 a61af66fc99e Initial load duke parents: diff changeset	364 if (super == NULL) return; // special case: class Object
6867 bdb5f8c9978b 7199068: NPG: SharedSkipVerify is meaningless coleenp parents: 6831 diff changeset	365 assert((!super->is_interface() // interfaces cannot be supers
0 a61af66fc99e Initial load duke parents: diff changeset	366 && (super->superklass() == NULL \|\| !is_interface())),
a61af66fc99e Initial load duke parents: diff changeset	367 "an interface can only be a subklass of Object");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	368 Klass* prev_first_subklass = super->subklass_oop();
0 a61af66fc99e Initial load duke parents: diff changeset	369 if (prev_first_subklass != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	370 // set our sibling to be the superklass' previous first subklass
a61af66fc99e Initial load duke parents: diff changeset	371 set_next_sibling(prev_first_subklass);
a61af66fc99e Initial load duke parents: diff changeset	372 }
a61af66fc99e Initial load duke parents: diff changeset	373 // make ourselves the superklass' first subklass
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	374 super->set_subklass(this);
6867 bdb5f8c9978b 7199068: NPG: SharedSkipVerify is meaningless coleenp parents: 6831 diff changeset	375 debug_only(verify();)
0 a61af66fc99e Initial load duke parents: diff changeset	376 }
a61af66fc99e Initial load duke parents: diff changeset	377
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	378 bool Klass::is_loader_alive(BoolObjectClosure* is_alive) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	379 assert(is_metadata(), "p is not meta-data");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	380 assert(ClassLoaderDataGraph::contains((address)this), "is in the metaspace");
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	381
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	382 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	383 // The class is alive iff the class loader is alive.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	384 oop loader = class_loader();
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	385 bool loader_alive = (loader == NULL) \|\| is_alive->do_object_b(loader);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	386 #endif // ASSERT
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	387
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	388 // The class is alive if it's mirror is alive (which should be marked if the
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	389 // loader is alive) unless it's an anoymous class.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	390 bool mirror_alive = is_alive->do_object_b(java_mirror());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	391 assert(!mirror_alive \|\| loader_alive, "loader must be alive if the mirror is"
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	392 " but not the other way around with anonymous classes");
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	393 return mirror_alive;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	394 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	395
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	396 void Klass::clean_weak_klass_links(BoolObjectClosure* is_alive) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	397 if (!ClassUnloading) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	398 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	399 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	400
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	401 Klass* root = SystemDictionary::Object_klass();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	402 Stack<Klass*, mtGC> stack;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	403
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	404 stack.push(root);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	405 while (!stack.is_empty()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	406 Klass* current = stack.pop();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	407
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	408 assert(current->is_loader_alive(is_alive), "just checking, this should be live");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	409
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	410 // Find and set the first alive subklass
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	411 Klass* sub = current->subklass_oop();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	412 while (sub != NULL && !sub->is_loader_alive(is_alive)) {
0 a61af66fc99e Initial load duke parents: diff changeset	413 #ifndef PRODUCT
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	414 if (TraceClassUnloading && WizardMode) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	415 ResourceMark rm;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	416 tty->print_cr("[Unlinking class (subclass) %s]", sub->external_name());
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	417 }
0 a61af66fc99e Initial load duke parents: diff changeset	418 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	419 sub = sub->next_sibling_oop();
0 a61af66fc99e Initial load duke parents: diff changeset	420 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	421 current->set_subklass(sub);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	422 if (sub != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	423 stack.push(sub);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	424 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	425
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	426 // Find and set the first alive sibling
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	427 Klass* sibling = current->next_sibling_oop();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	428 while (sibling != NULL && !sibling->is_loader_alive(is_alive)) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	429 if (TraceClassUnloading && WizardMode) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	430 ResourceMark rm;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	431 tty->print_cr("[Unlinking class (sibling) %s]", sibling->external_name());
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	432 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	433 sibling = sibling->next_sibling_oop();
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	434 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	435 current->set_next_sibling(sibling);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	436 if (sibling != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	437 stack.push(sibling);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	438 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	439
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	440 // Clean the implementors list and method data.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	441 if (current->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	442 InstanceKlass* ik = InstanceKlass::cast(current);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	443 ik->clean_implementors_list(is_alive);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	444 ik->clean_method_data(is_alive);
0 a61af66fc99e Initial load duke parents: diff changeset	445 }
a61af66fc99e Initial load duke parents: diff changeset	446 }
a61af66fc99e Initial load duke parents: diff changeset	447 }
a61af66fc99e Initial load duke parents: diff changeset	448
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	449 void Klass::klass_update_barrier_set(oop v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	450 record_modified_oops();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	451 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	452
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	453 void Klass::klass_update_barrier_set_pre(void* p, oop v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	454 // This barrier used by G1, where it's used remember the old oop values,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	455 // so that we don't forget any objects that were live at the snapshot at
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	456 // the beginning. This function is only used when we write oops into
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	457 // Klasses. Since the Klasses are used as roots in G1, we don't have to
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	458 // do anything here.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	459 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	460
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	461 void Klass::klass_oop_store(oop* p, oop v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	462 assert(!Universe::heap()->is_in_reserved((void*)p), "Should store pointer into metadata");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	463 assert(v == NULL \|\| Universe::heap()->is_in_reserved((void*)v), "Should store pointer to an object");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	464
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	465 // do the store
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	466 if (always_do_update_barrier) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	467 klass_oop_store((volatile oop*)p, v);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	468 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	469 klass_update_barrier_set_pre((void*)p, v);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	470 *p = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	471 klass_update_barrier_set(v);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	472 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	473 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	474
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	475 void Klass::klass_oop_store(volatile oop* p, oop v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	476 assert(!Universe::heap()->is_in_reserved((void*)p), "Should store pointer into metadata");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	477 assert(v == NULL \|\| Universe::heap()->is_in_reserved((void*)v), "Should store pointer to an object");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	478
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	479 klass_update_barrier_set_pre((void*)p, v);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	480 OrderAccess::release_store_ptr(p, v);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	481 klass_update_barrier_set(v);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	482 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	483
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	484 void Klass::oops_do(OopClosure* cl) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	485 cl->do_oop(&_java_mirror);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	486 }
0 a61af66fc99e Initial load duke parents: diff changeset	487
a61af66fc99e Initial load duke parents: diff changeset	488 void Klass::remove_unshareable_info() {
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 8712 diff changeset	489 if (!DumpSharedSpaces) {
1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 8712 diff changeset	490 // Clean up after OOM during class loading
1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 8712 diff changeset	491 if (class_loader_data() != NULL) {
1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 8712 diff changeset	492 class_loader_data()->remove_class(this);
1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 8712 diff changeset	493 }
1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 8712 diff changeset	494 }
0 a61af66fc99e Initial load duke parents: diff changeset	495 set_subklass(NULL);
a61af66fc99e Initial load duke parents: diff changeset	496 set_next_sibling(NULL);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	497 // Clear the java mirror
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	498 set_java_mirror(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	499 set_next_link(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	500
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	501 // Null out class_loader_data because we don't share that yet.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	502 set_class_loader_data(NULL);
0 a61af66fc99e Initial load duke parents: diff changeset	503 }
a61af66fc99e Initial load duke parents: diff changeset	504
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	505 void Klass::restore_unshareable_info(TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	506 ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	507 // Restore class_loader_data to the null class loader data
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	508 set_class_loader_data(loader_data);
0 a61af66fc99e Initial load duke parents: diff changeset	509
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	510 // Add to null class loader list first before creating the mirror
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	511 // (same order as class file parsing)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	512 loader_data->add_class(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	513
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	514 // Recreate the class mirror
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	515 java_lang_Class::create_mirror(this, CHECK);
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	516 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1972 diff changeset	517
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	518 Klass* Klass::array_klass_or_null(int rank) {
0 a61af66fc99e Initial load duke parents: diff changeset	519 EXCEPTION_MARK;
a61af66fc99e Initial load duke parents: diff changeset	520 // No exception can be thrown by array_klass_impl when called with or_null == true.
a61af66fc99e Initial load duke parents: diff changeset	521 // (In anycase, the execption mark will fail if it do so)
a61af66fc99e Initial load duke parents: diff changeset	522 return array_klass_impl(true, rank, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	523 }
a61af66fc99e Initial load duke parents: diff changeset	524
a61af66fc99e Initial load duke parents: diff changeset	525
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	526 Klass* Klass::array_klass_or_null() {
0 a61af66fc99e Initial load duke parents: diff changeset	527 EXCEPTION_MARK;
a61af66fc99e Initial load duke parents: diff changeset	528 // No exception can be thrown by array_klass_impl when called with or_null == true.
a61af66fc99e Initial load duke parents: diff changeset	529 // (In anycase, the execption mark will fail if it do so)
a61af66fc99e Initial load duke parents: diff changeset	530 return array_klass_impl(true, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	531 }
a61af66fc99e Initial load duke parents: diff changeset	532
a61af66fc99e Initial load duke parents: diff changeset	533
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	534 Klass* Klass::array_klass_impl(bool or_null, int rank, TRAPS) {
6831 d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass coleenp parents: 6725 diff changeset	535 fatal("array_klass should be dispatched to InstanceKlass, ObjArrayKlass or TypeArrayKlass");
0 a61af66fc99e Initial load duke parents: diff changeset	536 return NULL;
a61af66fc99e Initial load duke parents: diff changeset	537 }
a61af66fc99e Initial load duke parents: diff changeset	538
a61af66fc99e Initial load duke parents: diff changeset	539
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	540 Klass* Klass::array_klass_impl(bool or_null, TRAPS) {
6831 d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass coleenp parents: 6725 diff changeset	541 fatal("array_klass should be dispatched to InstanceKlass, ObjArrayKlass or TypeArrayKlass");
0 a61af66fc99e Initial load duke parents: diff changeset	542 return NULL;
a61af66fc99e Initial load duke parents: diff changeset	543 }
a61af66fc99e Initial load duke parents: diff changeset	544
a61af66fc99e Initial load duke parents: diff changeset	545
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	546 void Klass::with_array_klasses_do(void f(Klass* k)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	547 f(this);
0 a61af66fc99e Initial load duke parents: diff changeset	548 }
a61af66fc99e Initial load duke parents: diff changeset	549
a61af66fc99e Initial load duke parents: diff changeset	550
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	551 oop Klass::class_loader() const { return class_loader_data()->class_loader(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	552
0 a61af66fc99e Initial load duke parents: diff changeset	553 const char* Klass::external_name() const {
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	554 if (oop_is_instance()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	555 InstanceKlass* ik = (InstanceKlass*) this;
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	556 if (ik->is_anonymous()) {
2416 38fea01eb669 6817525: turn on method handle functionality by default for JSR 292 twisti parents: 2177 diff changeset	557 assert(EnableInvokeDynamic, "");
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	558 intptr_t hash = 0;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	559 if (ik->java_mirror() != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	560 // java_mirror might not be created yet, return 0 as hash.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	561 hash = ik->java_mirror()->identity_hash();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6983 diff changeset	562 }
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	563 char hash_buf[40];
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	564 sprintf(hash_buf, "/" UINTX_FORMAT, (uintx)hash);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	565 size_t hash_len = strlen(hash_buf);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	566
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	567 size_t result_len = name()->utf8_length();
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	568 char* result = NEW_RESOURCE_ARRAY(char, result_len + hash_len + 1);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	569 name()->as_klass_external_name(result, (int) result_len + 1);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	570 assert(strlen(result) == result_len, "");
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	571 strcpy(result + result_len, hash_buf);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	572 assert(strlen(result) == result_len + hash_len, "");
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	573 return result;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	574 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	575 }
1039 987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638) jrose parents: 605 diff changeset	576 if (name() == NULL) return "<unknown>";
0 a61af66fc99e Initial load duke parents: diff changeset	577 return name()->as_klass_external_name();
a61af66fc99e Initial load duke parents: diff changeset	578 }
a61af66fc99e Initial load duke parents: diff changeset	579
a61af66fc99e Initial load duke parents: diff changeset	580
1039 987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638) jrose parents: 605 diff changeset	581 const char* Klass::signature_name() const {
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638) jrose parents: 605 diff changeset	582 if (name() == NULL) return "<unknown>";
0 a61af66fc99e Initial load duke parents: diff changeset	583 return name()->as_C_string();
a61af66fc99e Initial load duke parents: diff changeset	584 }
a61af66fc99e Initial load duke parents: diff changeset	585
a61af66fc99e Initial load duke parents: diff changeset	586 // Unless overridden, modifier_flags is 0.
a61af66fc99e Initial load duke parents: diff changeset	587 jint Klass::compute_modifier_flags(TRAPS) const {
a61af66fc99e Initial load duke parents: diff changeset	588 return 0;
a61af66fc99e Initial load duke parents: diff changeset	589 }
a61af66fc99e Initial load duke parents: diff changeset	590
a61af66fc99e Initial load duke parents: diff changeset	591 int Klass::atomic_incr_biased_lock_revocation_count() {
a61af66fc99e Initial load duke parents: diff changeset	592 return (int) Atomic::add(1, &_biased_lock_revocation_count);
a61af66fc99e Initial load duke parents: diff changeset	593 }
a61af66fc99e Initial load duke parents: diff changeset	594
a61af66fc99e Initial load duke parents: diff changeset	595 // Unless overridden, jvmti_class_status has no flags set.
a61af66fc99e Initial load duke parents: diff changeset	596 jint Klass::jvmti_class_status() const {
a61af66fc99e Initial load duke parents: diff changeset	597 return 0;
a61af66fc99e Initial load duke parents: diff changeset	598 }
a61af66fc99e Initial load duke parents: diff changeset	599
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	600
0 a61af66fc99e Initial load duke parents: diff changeset	601 // Printing
a61af66fc99e Initial load duke parents: diff changeset	602
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	603 void Klass::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	604 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	605 // print title
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	606 st->print("%s", internal_name());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	607 print_address_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	608 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	609 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	610
0 a61af66fc99e Initial load duke parents: diff changeset	611 void Klass::oop_print_on(oop obj, outputStream* st) {
a61af66fc99e Initial load duke parents: diff changeset	612 ResourceMark rm;
a61af66fc99e Initial load duke parents: diff changeset	613 // print title
a61af66fc99e Initial load duke parents: diff changeset	614 st->print_cr("%s ", internal_name());
a61af66fc99e Initial load duke parents: diff changeset	615 obj->print_address_on(st);
a61af66fc99e Initial load duke parents: diff changeset	616
a61af66fc99e Initial load duke parents: diff changeset	617 if (WizardMode) {
a61af66fc99e Initial load duke parents: diff changeset	618 // print header
a61af66fc99e Initial load duke parents: diff changeset	619 obj->mark()->print_on(st);
a61af66fc99e Initial load duke parents: diff changeset	620 }
a61af66fc99e Initial load duke parents: diff changeset	621
a61af66fc99e Initial load duke parents: diff changeset	622 // print class
a61af66fc99e Initial load duke parents: diff changeset	623 st->print(" - klass: ");
a61af66fc99e Initial load duke parents: diff changeset	624 obj->klass()->print_value_on(st);
a61af66fc99e Initial load duke parents: diff changeset	625 st->cr();
a61af66fc99e Initial load duke parents: diff changeset	626 }
a61af66fc99e Initial load duke parents: diff changeset	627
a61af66fc99e Initial load duke parents: diff changeset	628 void Klass::oop_print_value_on(oop obj, outputStream* st) {
a61af66fc99e Initial load duke parents: diff changeset	629 // print title
a61af66fc99e Initial load duke parents: diff changeset	630 ResourceMark rm; // Cannot print in debug mode without this
a61af66fc99e Initial load duke parents: diff changeset	631 st->print("%s", internal_name());
a61af66fc99e Initial load duke parents: diff changeset	632 obj->print_address_on(st);
a61af66fc99e Initial load duke parents: diff changeset	633 }
a61af66fc99e Initial load duke parents: diff changeset	634
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	635 #if INCLUDE_SERVICES
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	636 // Size Statistics
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	637 void Klass::collect_statistics(KlassSizeStats *sz) const {
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	638 sz->_klass_bytes = sz->count(this);
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	639 sz->_mirror_bytes = sz->count(java_mirror());
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	640 sz->_secondary_supers_bytes = sz->count_array(secondary_supers());
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	641
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	642 sz->_ro_bytes += sz->_secondary_supers_bytes;
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	643 sz->_rw_bytes += sz->_klass_bytes + sz->_mirror_bytes;
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	644 }
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7185 diff changeset	645 #endif // INCLUDE_SERVICES
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	646
0 a61af66fc99e Initial load duke parents: diff changeset	647 // Verification
a61af66fc99e Initial load duke parents: diff changeset	648
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	649 void Klass::verify_on(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	650 guarantee(!Universe::heap()->is_in_reserved(this), "Shouldn't be");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	651 guarantee(this->is_metadata(), "should be in metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	652
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	653 assert(ClassLoaderDataGraph::contains((address)this), "Should be");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	654
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	655 guarantee(this->is_klass(),"should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	656
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	657 if (super() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	658 guarantee(super()->is_metadata(), "should be in metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	659 guarantee(super()->is_klass(), "should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	660 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	661 if (secondary_super_cache() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	662 Klass* ko = secondary_super_cache();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	663 guarantee(ko->is_metadata(), "should be in metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	664 guarantee(ko->is_klass(), "should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	665 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	666 for ( uint i = 0; i < primary_super_limit(); i++ ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	667 Klass* ko = _primary_supers[i];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	668 if (ko != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	669 guarantee(ko->is_metadata(), "should be in metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	670 guarantee(ko->is_klass(), "should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	671 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	672 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	673
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	674 if (java_mirror() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	675 guarantee(java_mirror()->is_oop(), "should be instance");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	676 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	677 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	678
0 a61af66fc99e Initial load duke parents: diff changeset	679 void Klass::oop_verify_on(oop obj, outputStream* st) {
a61af66fc99e Initial load duke parents: diff changeset	680 guarantee(obj->is_oop(), "should be oop");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	681 guarantee(obj->klass()->is_metadata(), "should not be in Java heap");
0 a61af66fc99e Initial load duke parents: diff changeset	682 guarantee(obj->klass()->is_klass(), "klass field is not a klass");
a61af66fc99e Initial load duke parents: diff changeset	683 }
a61af66fc99e Initial load duke parents: diff changeset	684
a61af66fc99e Initial load duke parents: diff changeset	685 #ifndef PRODUCT
a61af66fc99e Initial load duke parents: diff changeset	686
a61af66fc99e Initial load duke parents: diff changeset	687 void Klass::verify_vtable_index(int i) {
a61af66fc99e Initial load duke parents: diff changeset	688 if (oop_is_instance()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	689 assert(i>=0 && i<((InstanceKlass*)this)->vtable_length()/vtableEntry::size(), "index out of bounds");
0 a61af66fc99e Initial load duke parents: diff changeset	690 } else {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6008 diff changeset	691 assert(oop_is_array(), "Must be");
6831 d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass coleenp parents: 6725 diff changeset	692 assert(i>=0 && i<((ArrayKlass*)this)->vtable_length()/vtableEntry::size(), "index out of bounds");
0 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 #endif

Mercurial > hg > truffle

annotate src/share/vm/oops/klass.cpp @ 10265:92ef81e2f571