truffle: src/share/vm/oops/constantPool.hpp annotate

annotate src/share/vm/oops/constantPool.hpp @ 7956:16fb9f942703

6479360: PrintClassHistogram improvements Summary: jcmd <pid> GC.class_stats (UnlockDiagnosticVMOptions) Reviewed-by: coleenp, hseigel, sla, acorn Contributed-by: ioi.lam@oracle.com

author	acorn
date	Fri, 25 Jan 2013 15:06:18 -0500
parents	5daaddd917a1
children	0d26ce8e9251

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
7624 b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 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: 1138 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1138 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: 1138 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: 1913 diff changeset	25 #ifndef SHARE_VM_OOPS_CONSTANTPOOLOOP_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	26 #define SHARE_VM_OOPS_CONSTANTPOOLOOP_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	27
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	28 #include "oops/arrayOop.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	29 #include "oops/cpCache.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	30 #include "oops/objArrayOop.hpp"
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	31 #include "oops/symbol.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	32 #include "oops/typeArrayOop.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	33 #include "runtime/handles.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	34 #include "utilities/constantTag.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	35 #ifdef TARGET_ARCH_x86
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	36 # include "bytes_x86.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	37 #endif
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	38 #ifdef TARGET_ARCH_sparc
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	39 # include "bytes_sparc.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	40 #endif
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	41 #ifdef TARGET_ARCH_zero
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	42 # include "bytes_zero.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	43 #endif
2192 b92c45f2bc75 7016023: Enable building ARM and PPC from src/closed repository bobv parents: 2177 diff changeset	44 #ifdef TARGET_ARCH_arm
b92c45f2bc75 7016023: Enable building ARM and PPC from src/closed repository bobv parents: 2177 diff changeset	45 # include "bytes_arm.hpp"
b92c45f2bc75 7016023: Enable building ARM and PPC from src/closed repository bobv parents: 2177 diff changeset	46 #endif
b92c45f2bc75 7016023: Enable building ARM and PPC from src/closed repository bobv parents: 2177 diff changeset	47 #ifdef TARGET_ARCH_ppc
b92c45f2bc75 7016023: Enable building ARM and PPC from src/closed repository bobv parents: 2177 diff changeset	48 # include "bytes_ppc.hpp"
b92c45f2bc75 7016023: Enable building ARM and PPC from src/closed repository bobv parents: 2177 diff changeset	49 #endif
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	50
0 a61af66fc99e Initial load duke parents: diff changeset	51 // A constantPool is an array containing class constants as described in the
a61af66fc99e Initial load duke parents: diff changeset	52 // class file.
a61af66fc99e Initial load duke parents: diff changeset	53 //
a61af66fc99e Initial load duke parents: diff changeset	54 // Most of the constant pool entries are written during class parsing, which
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	55 // is safe. For klass types, the constant pool entry is
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	56 // modified when the entry is resolved. If a klass constant pool
0 a61af66fc99e Initial load duke parents: diff changeset	57 // entry is read without a lock, only the resolved state guarantees that
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	58 // the entry in the constant pool is a klass object and not a Symbol*.
0 a61af66fc99e Initial load duke parents: diff changeset	59
a61af66fc99e Initial load duke parents: diff changeset	60 class SymbolHashMap;
a61af66fc99e Initial load duke parents: diff changeset	61
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	62 class CPSlot VALUE_OBJ_CLASS_SPEC {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	63 intptr_t _ptr;
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	64 public:
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	65 CPSlot(intptr_t ptr): _ptr(ptr) {}
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	66 CPSlot(Klass* ptr): _ptr((intptr_t)ptr) {}
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	67 CPSlot(Symbol* ptr): _ptr((intptr_t)ptr \| 1) {}
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	68
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	69 intptr_t value() { return _ptr; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	70 bool is_resolved() { return (_ptr & 1) == 0; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	71 bool is_unresolved() { return (_ptr & 1) == 1; }
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	72
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	73 Symbol* get_symbol() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	74 assert(is_unresolved(), "bad call");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	75 return (Symbol*)(_ptr & ~1);
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	76 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	77 Klass* get_klass() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	78 assert(is_resolved(), "bad call");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	79 return (Klass*)_ptr;
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	80 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	81 };
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	82
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	83 class KlassSizeStats;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	84 class ConstantPool : public Metadata {
0 a61af66fc99e Initial load duke parents: diff changeset	85 friend class VMStructs;
a61af66fc99e Initial load duke parents: diff changeset	86 friend class BytecodeInterpreter; // Directly extracts an oop in the pool for fast instanceof/checkcast
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	87 friend class Universe; // For null constructor
0 a61af66fc99e Initial load duke parents: diff changeset	88 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	89 Array<u1>* _tags; // the tag array describing the constant pool's contents
6940 18fb7da42534 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass coleenp parents: 6840 diff changeset	90 ConstantPoolCache* _cache; // the cache holding interpreter runtime information
18fb7da42534 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass coleenp parents: 6840 diff changeset	91 InstanceKlass* _pool_holder; // the corresponding class
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	92 Array<u2>* _operands; // for variable-sized (InvokeDynamic) nodes, usually empty
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	93
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	94 // Array of resolved objects from the constant pool and map from resolved
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	95 // object index to original constant pool index
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	96 jobject _resolved_references;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	97 Array<u2>* _reference_map;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	98
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	99 enum {
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	100 _has_invokedynamic = 1, // Flags
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	101 _has_pseudo_string = 2,
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	102 _has_preresolution = 4,
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	103 _on_stack = 8
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	104 };
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	105
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	106 int _flags; // old fashioned bit twiddling
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	107 int _length; // number of elements in the array
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	108
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	109 union {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	110 // set for CDS to restore resolved references
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	111 int _resolved_reference_length;
7624 b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	112 // keeps version number for redefined classes (used in backtrace)
b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	113 int _version;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	114 } _saved;
0 a61af66fc99e Initial load duke parents: diff changeset	115
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	116 Monitor* _lock;
0 a61af66fc99e Initial load duke parents: diff changeset	117
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	118 void set_tags(Array<u1>* tags) { _tags = tags; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	119 void tag_at_put(int which, jbyte t) { tags()->at_put(which, t); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	120 void release_tag_at_put(int which, jbyte t) { tags()->release_at_put(which, t); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	121
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	122 void set_operands(Array<u2>* operands) { _operands = operands; }
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	123
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	124 int flags() const { return _flags; }
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	125 void set_flags(int f) { _flags = f; }
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	126
0 a61af66fc99e Initial load duke parents: diff changeset	127 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	128 intptr_t* base() const { return (intptr_t) (((char) this) + sizeof(ConstantPool)); }
0 a61af66fc99e Initial load duke parents: diff changeset	129
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	130 CPSlot slot_at(int which) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	131 assert(is_within_bounds(which), "index out of bounds");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	132 // Uses volatile because the klass slot changes without a lock.
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	133 volatile intptr_t adr = (intptr_t)OrderAccess::load_ptr_acquire(obj_at_addr_raw(which));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	134 assert(adr != 0 \|\| which == 0, "cp entry for klass should not be zero");
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	135 return CPSlot(adr);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	136 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	137
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	138 void slot_at_put(int which, CPSlot s) const {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	139 assert(is_within_bounds(which), "index out of bounds");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	140 assert(s.value() != 0, "Caught something");
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	141 (intptr_t)&base()[which] = s.value();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	142 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	143 intptr_t* obj_at_addr_raw(int which) const {
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	144 assert(is_within_bounds(which), "index out of bounds");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	145 return (intptr_t*) &base()[which];
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	146 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	147
0 a61af66fc99e Initial load duke parents: diff changeset	148 jint* int_at_addr(int which) const {
a61af66fc99e Initial load duke parents: diff changeset	149 assert(is_within_bounds(which), "index out of bounds");
a61af66fc99e Initial load duke parents: diff changeset	150 return (jint*) &base()[which];
a61af66fc99e Initial load duke parents: diff changeset	151 }
a61af66fc99e Initial load duke parents: diff changeset	152
a61af66fc99e Initial load duke parents: diff changeset	153 jlong* long_at_addr(int which) const {
a61af66fc99e Initial load duke parents: diff changeset	154 assert(is_within_bounds(which), "index out of bounds");
a61af66fc99e Initial load duke parents: diff changeset	155 return (jlong*) &base()[which];
a61af66fc99e Initial load duke parents: diff changeset	156 }
a61af66fc99e Initial load duke parents: diff changeset	157
a61af66fc99e Initial load duke parents: diff changeset	158 jfloat* float_at_addr(int which) const {
a61af66fc99e Initial load duke parents: diff changeset	159 assert(is_within_bounds(which), "index out of bounds");
a61af66fc99e Initial load duke parents: diff changeset	160 return (jfloat*) &base()[which];
a61af66fc99e Initial load duke parents: diff changeset	161 }
a61af66fc99e Initial load duke parents: diff changeset	162
a61af66fc99e Initial load duke parents: diff changeset	163 jdouble* double_at_addr(int which) const {
a61af66fc99e Initial load duke parents: diff changeset	164 assert(is_within_bounds(which), "index out of bounds");
a61af66fc99e Initial load duke parents: diff changeset	165 return (jdouble*) &base()[which];
a61af66fc99e Initial load duke parents: diff changeset	166 }
a61af66fc99e Initial load duke parents: diff changeset	167
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	168 ConstantPool(Array<u1>* tags);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	169 ConstantPool() { assert(DumpSharedSpaces \|\| UseSharedSpaces, "only for CDS"); }
0 a61af66fc99e Initial load duke parents: diff changeset	170 public:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	171 static ConstantPool* allocate(ClassLoaderData* loader_data, int length, TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	172
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	173 bool is_constantPool() const volatile { return true; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	174
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	175 Array<u1>* tags() const { return _tags; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	176 Array<u2>* operands() const { return _operands; }
0 a61af66fc99e Initial load duke parents: diff changeset	177
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	178 bool has_invokedynamic() const { return (_flags & _has_invokedynamic) != 0; }
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	179 void set_has_invokedynamic() { _flags \|= _has_invokedynamic; }
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	180
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	181 bool has_pseudo_string() const { return (_flags & _has_pseudo_string) != 0; }
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	182 void set_has_pseudo_string() { _flags \|= _has_pseudo_string; }
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	183
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	184 bool has_preresolution() const { return (_flags & _has_preresolution) != 0; }
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	185 void set_has_preresolution() { _flags \|= _has_preresolution; }
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	186
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	187 // Redefine classes support. If a method refering to this constant pool
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	188 // is on the executing stack, or as a handle in vm code, this constant pool
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	189 // can't be removed from the set of previous versions saved in the instance
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	190 // class.
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	191 bool on_stack() const { return (_flags &_on_stack) != 0; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	192 void set_on_stack(const bool value);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	193
0 a61af66fc99e Initial load duke parents: diff changeset	194 // Klass holding pool
6940 18fb7da42534 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass coleenp parents: 6840 diff changeset	195 InstanceKlass* pool_holder() const { return _pool_holder; }
18fb7da42534 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass coleenp parents: 6840 diff changeset	196 void set_pool_holder(InstanceKlass* k) { _pool_holder = k; }
18fb7da42534 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass coleenp parents: 6840 diff changeset	197 InstanceKlass** pool_holder_addr() { return &_pool_holder; }
0 a61af66fc99e Initial load duke parents: diff changeset	198
a61af66fc99e Initial load duke parents: diff changeset	199 // Interpreter runtime support
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	200 ConstantPoolCache* cache() const { return _cache; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	201 void set_cache(ConstantPoolCache* cache){ _cache = cache; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	202
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	203 // Create object cache in the constant pool
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	204 void initialize_resolved_references(ClassLoaderData* loader_data,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	205 intStack reference_map,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	206 int constant_pool_map_length,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	207 TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	208
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	209 // resolved strings, methodHandles and callsite objects from the constant pool
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	210 objArrayOop resolved_references() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	211 // mapping resolved object array indexes to cp indexes and back.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	212 int object_to_cp_index(int index) { return _reference_map->at(index); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	213 int cp_to_object_index(int index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	214
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	215 // Invokedynamic indexes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	216 // They must look completely different from normal indexes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	217 // The main reason is that byte swapping is sometimes done on normal indexes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	218 // Finally, it is helpful for debugging to tell the two apart.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	219 static bool is_invokedynamic_index(int i) { return (i < 0); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	220 static int decode_invokedynamic_index(int i) { assert(is_invokedynamic_index(i), ""); return ~i; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	221 static int encode_invokedynamic_index(int i) { assert(!is_invokedynamic_index(i), ""); return ~i; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	222
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	223
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	224 // The invokedynamic points at a CP cache entry. This entry points back
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	225 // at the original CP entry (CONSTANT_InvokeDynamic) and also (via f2) at an entry
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	226 // in the resolved_references array (which provides the appendix argument).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	227 int invokedynamic_cp_cache_index(int index) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	228 assert (is_invokedynamic_index(index), "should be a invokedynamic index");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	229 int cache_index = decode_invokedynamic_index(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	230 return cache_index;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	231 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	232 ConstantPoolCacheEntry* invokedynamic_cp_cache_entry_at(int index) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	233 // decode index that invokedynamic points to.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	234 int cp_cache_index = invokedynamic_cp_cache_index(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	235 return cache()->entry_at(cp_cache_index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	236 }
0 a61af66fc99e Initial load duke parents: diff changeset	237
a61af66fc99e Initial load duke parents: diff changeset	238 // Assembly code support
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	239 static int tags_offset_in_bytes() { return offset_of(ConstantPool, _tags); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	240 static int cache_offset_in_bytes() { return offset_of(ConstantPool, _cache); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	241 static int pool_holder_offset_in_bytes() { return offset_of(ConstantPool, _pool_holder); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	242 static int resolved_references_offset_in_bytes() { return offset_of(ConstantPool, _resolved_references); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	243 static int reference_map_offset_in_bytes() { return offset_of(ConstantPool, _reference_map); }
0 a61af66fc99e Initial load duke parents: diff changeset	244
a61af66fc99e Initial load duke parents: diff changeset	245 // Storing constants
a61af66fc99e Initial load duke parents: diff changeset	246
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	247 void klass_at_put(int which, Klass* k) {
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	248 assert(k != NULL, "resolved class shouldn't be null");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	249 assert(is_within_bounds(which), "index out of bounds");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	250 OrderAccess::release_store_ptr((Klass* volatile *)obj_at_addr_raw(which), k);
0 a61af66fc99e Initial load duke parents: diff changeset	251 // The interpreter assumes when the tag is stored, the klass is resolved
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	252 // and the Klass* is a klass rather than a Symbol*, so we need
0 a61af66fc99e Initial load duke parents: diff changeset	253 // hardware store ordering here.
a61af66fc99e Initial load duke parents: diff changeset	254 release_tag_at_put(which, JVM_CONSTANT_Class);
a61af66fc99e Initial load duke parents: diff changeset	255 }
a61af66fc99e Initial load duke parents: diff changeset	256
a61af66fc99e Initial load duke parents: diff changeset	257 // For temporary use while constructing constant pool
a61af66fc99e Initial load duke parents: diff changeset	258 void klass_index_at_put(int which, int name_index) {
a61af66fc99e Initial load duke parents: diff changeset	259 tag_at_put(which, JVM_CONSTANT_ClassIndex);
a61af66fc99e Initial load duke parents: diff changeset	260 *int_at_addr(which) = name_index;
a61af66fc99e Initial load duke parents: diff changeset	261 }
a61af66fc99e Initial load duke parents: diff changeset	262
a61af66fc99e Initial load duke parents: diff changeset	263 // Temporary until actual use
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	264 void unresolved_klass_at_put(int which, Symbol* s) {
0 a61af66fc99e Initial load duke parents: diff changeset	265 release_tag_at_put(which, JVM_CONSTANT_UnresolvedClass);
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	266 slot_at_put(which, s);
0 a61af66fc99e Initial load duke parents: diff changeset	267 }
a61af66fc99e Initial load duke parents: diff changeset	268
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	269 void method_handle_index_at_put(int which, int ref_kind, int ref_index) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	270 tag_at_put(which, JVM_CONSTANT_MethodHandle);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	271 *int_at_addr(which) = ((jint) ref_index<<16) \| ref_kind;
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	272 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	273
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	274 void method_type_index_at_put(int which, int ref_index) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	275 tag_at_put(which, JVM_CONSTANT_MethodType);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	276 *int_at_addr(which) = ref_index;
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	277 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	278
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	279 void invoke_dynamic_at_put(int which, int bootstrap_specifier_index, int name_and_type_index) {
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1602 diff changeset	280 tag_at_put(which, JVM_CONSTANT_InvokeDynamic);
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	281 *int_at_addr(which) = ((jint) name_and_type_index<<16) \| bootstrap_specifier_index;
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1602 diff changeset	282 }
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	283
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	284 void unresolved_string_at_put(int which, Symbol* s) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	285 release_tag_at_put(which, JVM_CONSTANT_String);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	286 *symbol_at_addr(which) = s;
0 a61af66fc99e Initial load duke parents: diff changeset	287 }
a61af66fc99e Initial load duke parents: diff changeset	288
a61af66fc99e Initial load duke parents: diff changeset	289 void int_at_put(int which, jint i) {
a61af66fc99e Initial load duke parents: diff changeset	290 tag_at_put(which, JVM_CONSTANT_Integer);
a61af66fc99e Initial load duke parents: diff changeset	291 *int_at_addr(which) = i;
a61af66fc99e Initial load duke parents: diff changeset	292 }
a61af66fc99e Initial load duke parents: diff changeset	293
a61af66fc99e Initial load duke parents: diff changeset	294 void long_at_put(int which, jlong l) {
a61af66fc99e Initial load duke parents: diff changeset	295 tag_at_put(which, JVM_CONSTANT_Long);
a61af66fc99e Initial load duke parents: diff changeset	296 // *long_at_addr(which) = l;
a61af66fc99e Initial load duke parents: diff changeset	297 Bytes::put_native_u8((address)long_at_addr(which), ((u8) &l));
a61af66fc99e Initial load duke parents: diff changeset	298 }
a61af66fc99e Initial load duke parents: diff changeset	299
a61af66fc99e Initial load duke parents: diff changeset	300 void float_at_put(int which, jfloat f) {
a61af66fc99e Initial load duke parents: diff changeset	301 tag_at_put(which, JVM_CONSTANT_Float);
a61af66fc99e Initial load duke parents: diff changeset	302 *float_at_addr(which) = f;
a61af66fc99e Initial load duke parents: diff changeset	303 }
a61af66fc99e Initial load duke parents: diff changeset	304
a61af66fc99e Initial load duke parents: diff changeset	305 void double_at_put(int which, jdouble d) {
a61af66fc99e Initial load duke parents: diff changeset	306 tag_at_put(which, JVM_CONSTANT_Double);
a61af66fc99e Initial load duke parents: diff changeset	307 // *double_at_addr(which) = d;
a61af66fc99e Initial load duke parents: diff changeset	308 // u8 temp = (u8) &d;
a61af66fc99e Initial load duke parents: diff changeset	309 Bytes::put_native_u8((address) double_at_addr(which), ((u8) &d));
a61af66fc99e Initial load duke parents: diff changeset	310 }
a61af66fc99e Initial load duke parents: diff changeset	311
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	312 Symbol** symbol_at_addr(int which) const {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	313 assert(is_within_bounds(which), "index out of bounds");
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	314 return (Symbol**) &base()[which];
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	315 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	316
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	317 void symbol_at_put(int which, Symbol* s) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	318 assert(s->refcount() != 0, "should have nonzero refcount");
0 a61af66fc99e Initial load duke parents: diff changeset	319 tag_at_put(which, JVM_CONSTANT_Utf8);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	320 *symbol_at_addr(which) = s;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	321 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	322
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	323 void string_at_put(int which, int obj_index, oop str) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	324 resolved_references()->obj_at_put(obj_index, str);
0 a61af66fc99e Initial load duke parents: diff changeset	325 }
a61af66fc99e Initial load duke parents: diff changeset	326
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	327 void set_object_tag_at(int which) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	328 release_tag_at_put(which, JVM_CONSTANT_Object);
0 a61af66fc99e Initial load duke parents: diff changeset	329 }
a61af66fc99e Initial load duke parents: diff changeset	330
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	331 void object_at_put(int which, oop obj) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	332 resolved_references()->obj_at_put(cp_to_object_index(which), obj);
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	333 }
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	334
0 a61af66fc99e Initial load duke parents: diff changeset	335 // For temporary use while constructing constant pool
a61af66fc99e Initial load duke parents: diff changeset	336 void string_index_at_put(int which, int string_index) {
a61af66fc99e Initial load duke parents: diff changeset	337 tag_at_put(which, JVM_CONSTANT_StringIndex);
a61af66fc99e Initial load duke parents: diff changeset	338 *int_at_addr(which) = string_index;
a61af66fc99e Initial load duke parents: diff changeset	339 }
a61af66fc99e Initial load duke parents: diff changeset	340
a61af66fc99e Initial load duke parents: diff changeset	341 void field_at_put(int which, int class_index, int name_and_type_index) {
a61af66fc99e Initial load duke parents: diff changeset	342 tag_at_put(which, JVM_CONSTANT_Fieldref);
a61af66fc99e Initial load duke parents: diff changeset	343 *int_at_addr(which) = ((jint) name_and_type_index<<16) \| class_index;
a61af66fc99e Initial load duke parents: diff changeset	344 }
a61af66fc99e Initial load duke parents: diff changeset	345
a61af66fc99e Initial load duke parents: diff changeset	346 void method_at_put(int which, int class_index, int name_and_type_index) {
a61af66fc99e Initial load duke parents: diff changeset	347 tag_at_put(which, JVM_CONSTANT_Methodref);
a61af66fc99e Initial load duke parents: diff changeset	348 *int_at_addr(which) = ((jint) name_and_type_index<<16) \| class_index;
a61af66fc99e Initial load duke parents: diff changeset	349 }
a61af66fc99e Initial load duke parents: diff changeset	350
a61af66fc99e Initial load duke parents: diff changeset	351 void interface_method_at_put(int which, int class_index, int name_and_type_index) {
a61af66fc99e Initial load duke parents: diff changeset	352 tag_at_put(which, JVM_CONSTANT_InterfaceMethodref);
a61af66fc99e Initial load duke parents: diff changeset	353 *int_at_addr(which) = ((jint) name_and_type_index<<16) \| class_index; // Not so nice
a61af66fc99e Initial load duke parents: diff changeset	354 }
a61af66fc99e Initial load duke parents: diff changeset	355
a61af66fc99e Initial load duke parents: diff changeset	356 void name_and_type_at_put(int which, int name_index, int signature_index) {
a61af66fc99e Initial load duke parents: diff changeset	357 tag_at_put(which, JVM_CONSTANT_NameAndType);
a61af66fc99e Initial load duke parents: diff changeset	358 *int_at_addr(which) = ((jint) signature_index<<16) \| name_index; // Not so nice
a61af66fc99e Initial load duke parents: diff changeset	359 }
a61af66fc99e Initial load duke parents: diff changeset	360
a61af66fc99e Initial load duke parents: diff changeset	361 // Tag query
a61af66fc99e Initial load duke parents: diff changeset	362
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	363 constantTag tag_at(int which) const { return (constantTag)tags()->at_acquire(which); }
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	364
0 a61af66fc99e Initial load duke parents: diff changeset	365 // Fetching constants
a61af66fc99e Initial load duke parents: diff changeset	366
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	367 Klass* klass_at(int which, TRAPS) {
0 a61af66fc99e Initial load duke parents: diff changeset	368 constantPoolHandle h_this(THREAD, this);
a61af66fc99e Initial load duke parents: diff changeset	369 return klass_at_impl(h_this, which, CHECK_NULL);
a61af66fc99e Initial load duke parents: diff changeset	370 }
a61af66fc99e Initial load duke parents: diff changeset	371
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	372 Symbol* klass_name_at(int which); // Returns the name, w/o resolving.
0 a61af66fc99e Initial load duke parents: diff changeset	373
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	374 Klass* resolved_klass_at(int which) { // Used by Compiler
0 a61af66fc99e Initial load duke parents: diff changeset	375 guarantee(tag_at(which).is_klass(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	376 // Must do an acquire here in case another thread resolved the klass
a61af66fc99e Initial load duke parents: diff changeset	377 // behind our back, lest we later load stale values thru the oop.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	378 return CPSlot((Klass*)OrderAccess::load_ptr_acquire(obj_at_addr_raw(which))).get_klass();
0 a61af66fc99e Initial load duke parents: diff changeset	379 }
a61af66fc99e Initial load duke parents: diff changeset	380
a61af66fc99e Initial load duke parents: diff changeset	381 // This method should only be used with a cpool lock or during parsing or gc
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	382 Symbol* unresolved_klass_at(int which) { // Temporary until actual use
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	383 Symbol* s = CPSlot((Symbol*)OrderAccess::load_ptr_acquire(obj_at_addr_raw(which))).get_symbol();
0 a61af66fc99e Initial load duke parents: diff changeset	384 // check that the klass is still unresolved.
a61af66fc99e Initial load duke parents: diff changeset	385 assert(tag_at(which).is_unresolved_klass(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	386 return s;
a61af66fc99e Initial load duke parents: diff changeset	387 }
a61af66fc99e Initial load duke parents: diff changeset	388
a61af66fc99e Initial load duke parents: diff changeset	389 // RedefineClasses() API support:
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	390 Symbol* klass_at_noresolve(int which) { return klass_name_at(which); }
0 a61af66fc99e Initial load duke parents: diff changeset	391
a61af66fc99e Initial load duke parents: diff changeset	392 jint int_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	393 assert(tag_at(which).is_int(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	394 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	395 }
a61af66fc99e Initial load duke parents: diff changeset	396
a61af66fc99e Initial load duke parents: diff changeset	397 jlong long_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	398 assert(tag_at(which).is_long(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	399 // return *long_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	400 u8 tmp = Bytes::get_native_u8((address)&base()[which]);
a61af66fc99e Initial load duke parents: diff changeset	401 return ((jlong)&tmp);
a61af66fc99e Initial load duke parents: diff changeset	402 }
a61af66fc99e Initial load duke parents: diff changeset	403
a61af66fc99e Initial load duke parents: diff changeset	404 jfloat float_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	405 assert(tag_at(which).is_float(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	406 return *float_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	407 }
a61af66fc99e Initial load duke parents: diff changeset	408
a61af66fc99e Initial load duke parents: diff changeset	409 jdouble double_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	410 assert(tag_at(which).is_double(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	411 u8 tmp = Bytes::get_native_u8((address)&base()[which]);
a61af66fc99e Initial load duke parents: diff changeset	412 return ((jdouble)&tmp);
a61af66fc99e Initial load duke parents: diff changeset	413 }
a61af66fc99e Initial load duke parents: diff changeset	414
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	415 Symbol* symbol_at(int which) {
0 a61af66fc99e Initial load duke parents: diff changeset	416 assert(tag_at(which).is_utf8(), "Corrupted constant pool");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	417 return *symbol_at_addr(which);
0 a61af66fc99e Initial load duke parents: diff changeset	418 }
a61af66fc99e Initial load duke parents: diff changeset	419
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	420 oop string_at(int which, int obj_index, TRAPS) {
0 a61af66fc99e Initial load duke parents: diff changeset	421 constantPoolHandle h_this(THREAD, this);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	422 return string_at_impl(h_this, which, obj_index, THREAD);
0 a61af66fc99e Initial load duke parents: diff changeset	423 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	424 oop string_at(int which, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	425 int obj_index = cp_to_object_index(which);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	426 return string_at(which, obj_index, THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	427 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	428
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	429 // Version that can be used before string oop array is created.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	430 oop uncached_string_at(int which, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	431
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	432 oop object_at(int which) {
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	433 assert(tag_at(which).is_object(), "Corrupted constant pool");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	434 int obj_index = cp_to_object_index(which);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	435 return resolved_references()->obj_at(obj_index);
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	436 }
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	437
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	438 // A "pseudo-string" is an non-string oop that has found is way into
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	439 // a String entry.
2416 38fea01eb669 6817525: turn on method handle functionality by default for JSR 292 twisti parents: 2192 diff changeset	440 // Under EnableInvokeDynamic this can happen if the user patches a live
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	441 // object into a CONSTANT_String entry of an anonymous class.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	442 // Method oops internally created for method handles may also
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	443 // use pseudo-strings to link themselves to related metaobjects.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	444
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	445 bool is_pseudo_string_at(int which) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	446 // A pseudo string is a string that doesn't have a symbol in the cpSlot
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	447 return unresolved_string_at(which) == NULL;
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	448 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	449
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	450 oop pseudo_string_at(int which, int obj_index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	451 assert(tag_at(which).is_string(), "Corrupted constant pool");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	452 assert(unresolved_string_at(which) == NULL, "shouldn't have symbol");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	453 oop s = resolved_references()->obj_at(obj_index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	454 return s;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	455 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	456
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	457 void pseudo_string_at_put(int which, int obj_index, oop x) {
2416 38fea01eb669 6817525: turn on method handle functionality by default for JSR 292 twisti parents: 2192 diff changeset	458 assert(EnableInvokeDynamic, "");
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	459 set_has_pseudo_string(); // mark header
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	460 assert(tag_at(which).is_string(), "Corrupted constant pool");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	461 string_at_put(which, obj_index, x); // this works just fine
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	462 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	463
0 a61af66fc99e Initial load duke parents: diff changeset	464 // only called when we are sure a string entry is already resolved (via an
a61af66fc99e Initial load duke parents: diff changeset	465 // earlier string_at call.
a61af66fc99e Initial load duke parents: diff changeset	466 oop resolved_string_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	467 assert(tag_at(which).is_string(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	468 // Must do an acquire here in case another thread resolved the klass
a61af66fc99e Initial load duke parents: diff changeset	469 // behind our back, lest we later load stale values thru the oop.
6831 d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass coleenp parents: 6733 diff changeset	470 // we might want a volatile_obj_at in ObjArrayKlass.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	471 int obj_index = cp_to_object_index(which);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	472 return resolved_references()->obj_at(obj_index);
0 a61af66fc99e Initial load duke parents: diff changeset	473 }
a61af66fc99e Initial load duke parents: diff changeset	474
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	475 Symbol* unresolved_string_at(int which) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	476 assert(tag_at(which).is_string(), "Corrupted constant pool");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	477 Symbol* s = *symbol_at_addr(which);
0 a61af66fc99e Initial load duke parents: diff changeset	478 return s;
a61af66fc99e Initial load duke parents: diff changeset	479 }
a61af66fc99e Initial load duke parents: diff changeset	480
a61af66fc99e Initial load duke parents: diff changeset	481 // Returns an UTF8 for a CONSTANT_String entry at a given index.
a61af66fc99e Initial load duke parents: diff changeset	482 // UTF8 char* representation was chosen to avoid conversion of
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	483 // java_lang_Strings at resolved entries into Symbol*s
0 a61af66fc99e Initial load duke parents: diff changeset	484 // or vice versa.
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	485 // Caller is responsible for checking for pseudo-strings.
0 a61af66fc99e Initial load duke parents: diff changeset	486 char* string_at_noresolve(int which);
a61af66fc99e Initial load duke parents: diff changeset	487
a61af66fc99e Initial load duke parents: diff changeset	488 jint name_and_type_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	489 assert(tag_at(which).is_name_and_type(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	490 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	491 }
a61af66fc99e Initial load duke parents: diff changeset	492
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	493 int method_handle_ref_kind_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	494 assert(tag_at(which).is_method_handle(), "Corrupted constant pool");
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	495 return extract_low_short_from_int(*int_at_addr(which)); // mask out unwanted ref_index bits
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	496 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	497 int method_handle_index_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	498 assert(tag_at(which).is_method_handle(), "Corrupted constant pool");
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	499 return extract_high_short_from_int(*int_at_addr(which)); // shift out unwanted ref_kind bits
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	500 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	501 int method_type_index_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	502 assert(tag_at(which).is_method_type(), "Corrupted constant pool");
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	503 return *int_at_addr(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	504 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	505 // Derived queries:
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	506 Symbol* method_handle_name_ref_at(int which) {
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	507 int member = method_handle_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	508 return impl_name_ref_at(member, true);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	509 }
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	510 Symbol* method_handle_signature_ref_at(int which) {
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	511 int member = method_handle_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	512 return impl_signature_ref_at(member, true);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	513 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	514 int method_handle_klass_index_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	515 int member = method_handle_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	516 return impl_klass_ref_index_at(member, true);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	517 }
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	518 Symbol* method_type_signature_at(int which) {
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	519 int sym = method_type_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	520 return symbol_at(sym);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	521 }
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	522
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	523 int invoke_dynamic_name_and_type_ref_index_at(int which) {
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	524 assert(tag_at(which).is_invoke_dynamic(), "Corrupted constant pool");
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	525 return extract_high_short_from_int(*int_at_addr(which));
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	526 }
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	527 int invoke_dynamic_bootstrap_specifier_index(int which) {
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	528 assert(tag_at(which).value() == JVM_CONSTANT_InvokeDynamic, "Corrupted constant pool");
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	529 return extract_low_short_from_int(*int_at_addr(which));
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	530 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	531 int invoke_dynamic_operand_base(int which) {
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	532 int bootstrap_specifier_index = invoke_dynamic_bootstrap_specifier_index(which);
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	533 return operand_offset_at(operands(), bootstrap_specifier_index);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	534 }
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	535 // The first part of the operands array consists of an index into the second part.
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	536 // Extract a 32-bit index value from the first part.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	537 static int operand_offset_at(Array<u2>* operands, int bootstrap_specifier_index) {
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	538 int n = (bootstrap_specifier_index * 2);
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	539 assert(n >= 0 && n+2 <= operands->length(), "oob");
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	540 // The first 32-bit index points to the beginning of the second part
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	541 // of the operands array. Make sure this index is in the first part.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	542 DEBUG_ONLY(int second_part = build_int_from_shorts(operands->at(0),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	543 operands->at(1)));
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	544 assert(second_part == 0 \|\| n+2 <= second_part, "oob (2)");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	545 int offset = build_int_from_shorts(operands->at(n+0),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	546 operands->at(n+1));
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	547 // The offset itself must point into the second part of the array.
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	548 assert(offset == 0 \|\| offset >= second_part && offset <= operands->length(), "oob (3)");
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	549 return offset;
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	550 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	551 static void operand_offset_at_put(Array<u2>* operands, int bootstrap_specifier_index, int offset) {
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	552 int n = bootstrap_specifier_index * 2;
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	553 assert(n >= 0 && n+2 <= operands->length(), "oob");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	554 operands->at_put(n+0, extract_low_short_from_int(offset));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	555 operands->at_put(n+1, extract_high_short_from_int(offset));
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	556 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	557 static int operand_array_length(Array<u2>* operands) {
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	558 if (operands == NULL \|\| operands->length() == 0) return 0;
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	559 int second_part = operand_offset_at(operands, 0);
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	560 return (second_part / 2);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	561 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	562
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	563 #ifdef ASSERT
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	564 // operand tuples fit together exactly, end to end
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	565 static int operand_limit_at(Array<u2>* operands, int bootstrap_specifier_index) {
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	566 int nextidx = bootstrap_specifier_index + 1;
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	567 if (nextidx == operand_array_length(operands))
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	568 return operands->length();
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	569 else
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	570 return operand_offset_at(operands, nextidx);
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	571 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	572 int invoke_dynamic_operand_limit(int which) {
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	573 int bootstrap_specifier_index = invoke_dynamic_bootstrap_specifier_index(which);
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	574 return operand_limit_at(operands(), bootstrap_specifier_index);
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	575 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	576 #endif //ASSERT
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	577
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	578 // layout of InvokeDynamic bootstrap method specifier (in second part of operands array):
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	579 enum {
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	580 _indy_bsm_offset = 0, // CONSTANT_MethodHandle bsm
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	581 _indy_argc_offset = 1, // u2 argc
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	582 _indy_argv_offset = 2 // u2 argv[argc]
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	583 };
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1602 diff changeset	584 int invoke_dynamic_bootstrap_method_ref_index_at(int which) {
083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1602 diff changeset	585 assert(tag_at(which).is_invoke_dynamic(), "Corrupted constant pool");
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	586 int op_base = invoke_dynamic_operand_base(which);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	587 return operands()->at(op_base + _indy_bsm_offset);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	588 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	589 int invoke_dynamic_argument_count_at(int which) {
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	590 assert(tag_at(which).is_invoke_dynamic(), "Corrupted constant pool");
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	591 int op_base = invoke_dynamic_operand_base(which);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	592 int argc = operands()->at(op_base + _indy_argc_offset);
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	593 DEBUG_ONLY(int end_offset = op_base + _indy_argv_offset + argc;
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	594 int next_offset = invoke_dynamic_operand_limit(which));
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	595 assert(end_offset == next_offset, "matched ending");
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	596 return argc;
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	597 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	598 int invoke_dynamic_argument_index_at(int which, int j) {
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	599 int op_base = invoke_dynamic_operand_base(which);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	600 DEBUG_ONLY(int argc = operands()->at(op_base + _indy_argc_offset));
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	601 assert((uint)j < (uint)argc, "oob");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	602 return operands()->at(op_base + _indy_argv_offset + j);
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1602 diff changeset	603 }
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	604
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	605 // The following methods (name/signature/klass_ref_at, klass_ref_at_noresolve,
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	606 // name_and_type_ref_index_at) all expect to be passed indices obtained
1910 d1896d1dda3e 6981788: GC map generator sometimes picks up the wrong kind of instruction operand jrose parents: 1660 diff changeset	607 // directly from the bytecode.
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	608 // If the indices are meant to refer to fields or methods, they are
1910 d1896d1dda3e 6981788: GC map generator sometimes picks up the wrong kind of instruction operand jrose parents: 1660 diff changeset	609 // actually rewritten constant pool cache indices.
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	610 // The routine remap_instruction_operand_from_cache manages the adjustment
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	611 // of these values back to constant pool indices.
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	612
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	613 // There are also "uncached" versions which do not adjust the operand index; see below.
0 a61af66fc99e Initial load duke parents: diff changeset	614
1910 d1896d1dda3e 6981788: GC map generator sometimes picks up the wrong kind of instruction operand jrose parents: 1660 diff changeset	615 // FIXME: Consider renaming these with a prefix "cached_" to make the distinction clear.
d1896d1dda3e 6981788: GC map generator sometimes picks up the wrong kind of instruction operand jrose parents: 1660 diff changeset	616 // In a few cases (the verifier) there are uses before a cpcache has been built,
d1896d1dda3e 6981788: GC map generator sometimes picks up the wrong kind of instruction operand jrose parents: 1660 diff changeset	617 // which are handled by a dynamic check in remap_instruction_operand_from_cache.
d1896d1dda3e 6981788: GC map generator sometimes picks up the wrong kind of instruction operand jrose parents: 1660 diff changeset	618 // FIXME: Remove the dynamic check, and adjust all callers to specify the correct mode.
d1896d1dda3e 6981788: GC map generator sometimes picks up the wrong kind of instruction operand jrose parents: 1660 diff changeset	619
0 a61af66fc99e Initial load duke parents: diff changeset	620 // Lookup for entries consisting of (klass_index, name_and_type index)
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	621 Klass* klass_ref_at(int which, TRAPS);
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	622 Symbol* klass_ref_at_noresolve(int which);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	623 Symbol* name_ref_at(int which) { return impl_name_ref_at(which, false); }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	624 Symbol* signature_ref_at(int which) { return impl_signature_ref_at(which, false); }
0 a61af66fc99e Initial load duke parents: diff changeset	625
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	626 int klass_ref_index_at(int which) { return impl_klass_ref_index_at(which, false); }
be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	627 int name_and_type_ref_index_at(int which) { return impl_name_and_type_ref_index_at(which, false); }
0 a61af66fc99e Initial load duke parents: diff changeset	628
a61af66fc99e Initial load duke parents: diff changeset	629 // Lookup for entries consisting of (name_index, signature_index)
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	630 int name_ref_index_at(int which_nt); // == low-order jshort of name_and_type_at(which_nt)
be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	631 int signature_ref_index_at(int which_nt); // == high-order jshort of name_and_type_at(which_nt)
0 a61af66fc99e Initial load duke parents: diff changeset	632
a61af66fc99e Initial load duke parents: diff changeset	633 BasicType basic_type_for_signature_at(int which);
a61af66fc99e Initial load duke parents: diff changeset	634
a61af66fc99e Initial load duke parents: diff changeset	635 // Resolve string constants (to prevent allocation during compilation)
a61af66fc99e Initial load duke parents: diff changeset	636 void resolve_string_constants(TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	637 constantPoolHandle h_this(THREAD, this);
a61af66fc99e Initial load duke parents: diff changeset	638 resolve_string_constants_impl(h_this, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	639 }
a61af66fc99e Initial load duke parents: diff changeset	640
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	641 // CDS support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	642 void remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	643 void restore_unshareable_info(TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	644 bool resolve_class_constants(TRAPS);
6733 fa6e618671d7 7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type coleenp parents: 6725 diff changeset	645 // The ConstantPool vtable is restored by this call when the ConstantPool is
fa6e618671d7 7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type coleenp parents: 6725 diff changeset	646 // in the shared archive. See patch_klass_vtables() in metaspaceShared.cpp for
fa6e618671d7 7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type coleenp parents: 6725 diff changeset	647 // all the gory details. SA, dtrace and pstack helpers distinguish metadata
fa6e618671d7 7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type coleenp parents: 6725 diff changeset	648 // by their vtable.
fa6e618671d7 7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type coleenp parents: 6725 diff changeset	649 void restore_vtable() { guarantee(is_constantPool(), "vtable restored by this call"); }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	650
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	651 private:
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	652 enum { _no_index_sentinel = -1, _possible_index_sentinel = -2 };
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	653 public:
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	654
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	655 // Resolve late bound constants.
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	656 oop resolve_constant_at(int index, TRAPS) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	657 constantPoolHandle h_this(THREAD, this);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	658 return resolve_constant_at_impl(h_this, index, _no_index_sentinel, THREAD);
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	659 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	660
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	661 oop resolve_cached_constant_at(int cache_index, TRAPS) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	662 constantPoolHandle h_this(THREAD, this);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	663 return resolve_constant_at_impl(h_this, _no_index_sentinel, cache_index, THREAD);
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	664 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	665
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	666 oop resolve_possibly_cached_constant_at(int pool_index, TRAPS) {
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	667 constantPoolHandle h_this(THREAD, this);
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	668 return resolve_constant_at_impl(h_this, pool_index, _possible_index_sentinel, THREAD);
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	669 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	670
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	671 oop resolve_bootstrap_specifier_at(int index, TRAPS) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	672 constantPoolHandle h_this(THREAD, this);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	673 return resolve_bootstrap_specifier_at_impl(h_this, index, THREAD);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	674 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	675
0 a61af66fc99e Initial load duke parents: diff changeset	676 // Klass name matches name at offset
a61af66fc99e Initial load duke parents: diff changeset	677 bool klass_name_at_matches(instanceKlassHandle k, int which);
a61af66fc99e Initial load duke parents: diff changeset	678
a61af66fc99e Initial load duke parents: diff changeset	679 // Sizing
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	680 int length() const { return _length; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	681 void set_length(int length) { _length = length; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	682
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	683 // Tells whether index is within bounds.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	684 bool is_within_bounds(int index) const {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	685 return 0 <= index && index < length();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	686 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	687
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	688 // Sizing (in words)
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	689 static int header_size() { return sizeof(ConstantPool)/HeapWordSize; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	690 static int size(int length) { return align_object_size(header_size() + length); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	691 int size() const { return size(length()); }
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	692 #if INCLUDE_SERVICES
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	693 void collect_statistics(KlassSizeStats *sz) const;
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	694 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	695
a61af66fc99e Initial load duke parents: diff changeset	696 friend class ClassFileParser;
a61af66fc99e Initial load duke parents: diff changeset	697 friend class SystemDictionary;
a61af66fc99e Initial load duke parents: diff changeset	698
a61af66fc99e Initial load duke parents: diff changeset	699 // Used by compiler to prevent classloading.
6822 f6b0eb4e44cf 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path twisti parents: 6733 diff changeset	700 static Method* method_at_if_loaded (constantPoolHandle this_oop, int which);
f6b0eb4e44cf 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path twisti parents: 6733 diff changeset	701 static bool has_appendix_at_if_loaded (constantPoolHandle this_oop, int which);
f6b0eb4e44cf 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path twisti parents: 6733 diff changeset	702 static oop appendix_at_if_loaded (constantPoolHandle this_oop, int which);
f6b0eb4e44cf 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path twisti parents: 6733 diff changeset	703 static bool has_method_type_at_if_loaded (constantPoolHandle this_oop, int which);
f6b0eb4e44cf 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path twisti parents: 6733 diff changeset	704 static oop method_type_at_if_loaded (constantPoolHandle this_oop, int which);
f6b0eb4e44cf 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path twisti parents: 6733 diff changeset	705 static Klass* klass_at_if_loaded (constantPoolHandle this_oop, int which);
f6b0eb4e44cf 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path twisti parents: 6733 diff changeset	706 static Klass* klass_ref_at_if_loaded (constantPoolHandle this_oop, int which);
0 a61af66fc99e Initial load duke parents: diff changeset	707 // Same as above - but does LinkResolving.
6822 f6b0eb4e44cf 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path twisti parents: 6733 diff changeset	708 static Klass* klass_ref_at_if_loaded_check(constantPoolHandle this_oop, int which, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	709
a61af66fc99e Initial load duke parents: diff changeset	710 // Routines currently used for annotations (only called by jvm.cpp) but which might be used in the
1910 d1896d1dda3e 6981788: GC map generator sometimes picks up the wrong kind of instruction operand jrose parents: 1660 diff changeset	711 // future by other Java code. These take constant pool indices rather than
0 a61af66fc99e Initial load duke parents: diff changeset	712 // constant pool cache indices as do the peer methods above.
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	713 Symbol* uncached_klass_ref_at_noresolve(int which);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	714 Symbol* uncached_name_ref_at(int which) { return impl_name_ref_at(which, true); }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	715 Symbol* uncached_signature_ref_at(int which) { return impl_signature_ref_at(which, true); }
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	716 int uncached_klass_ref_index_at(int which) { return impl_klass_ref_index_at(which, true); }
be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	717 int uncached_name_and_type_ref_index_at(int which) { return impl_name_and_type_ref_index_at(which, true); }
0 a61af66fc99e Initial load duke parents: diff changeset	718
a61af66fc99e Initial load duke parents: diff changeset	719 // Sharing
a61af66fc99e Initial load duke parents: diff changeset	720 int pre_resolve_shared_klasses(TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	721
a61af66fc99e Initial load duke parents: diff changeset	722 // Debugging
a61af66fc99e Initial load duke parents: diff changeset	723 const char* printable_name_at(int which) PRODUCT_RETURN0;
a61af66fc99e Initial load duke parents: diff changeset	724
1565 ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	725 #ifdef ASSERT
ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	726 enum { CPCACHE_INDEX_TAG = 0x10000 }; // helps keep CP cache indices distinct from CP indices
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	727 #else
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	728 enum { CPCACHE_INDEX_TAG = 0 }; // in product mode, this zero value is a no-op
1565 ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	729 #endif //ASSERT
ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	730
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	731 static int decode_cpcache_index(int raw_index, bool invokedynamic_ok = false) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	732 if (invokedynamic_ok && is_invokedynamic_index(raw_index))
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	733 return decode_invokedynamic_index(raw_index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	734 else
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	735 return raw_index - CPCACHE_INDEX_TAG;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	736 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	737
0 a61af66fc99e Initial load duke parents: diff changeset	738 private:
a61af66fc99e Initial load duke parents: diff changeset	739
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	740 void set_resolved_references(jobject s) { _resolved_references = s; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	741 Array<u2>* reference_map() const { return _reference_map; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	742 void set_reference_map(Array<u2>* o) { _reference_map = o; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	743
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	744 // patch JSR 292 resolved references after the class is linked.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	745 void patch_resolved_references(GrowableArray<Handle>* cp_patches);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	746
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	747 Symbol* impl_name_ref_at(int which, bool uncached);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	748 Symbol* impl_signature_ref_at(int which, bool uncached);
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	749 int impl_klass_ref_index_at(int which, bool uncached);
be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	750 int impl_name_and_type_ref_index_at(int which, bool uncached);
be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	751
1565 ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	752 int remap_instruction_operand_from_cache(int operand); // operand must be biased by CPCACHE_INDEX_TAG
0 a61af66fc99e Initial load duke parents: diff changeset	753
a61af66fc99e Initial load duke parents: diff changeset	754 // Used while constructing constant pool (only by ClassFileParser)
a61af66fc99e Initial load duke parents: diff changeset	755 jint klass_index_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	756 assert(tag_at(which).is_klass_index(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	757 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	758 }
a61af66fc99e Initial load duke parents: diff changeset	759
a61af66fc99e Initial load duke parents: diff changeset	760 jint string_index_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	761 assert(tag_at(which).is_string_index(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	762 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	763 }
a61af66fc99e Initial load duke parents: diff changeset	764
a61af66fc99e Initial load duke parents: diff changeset	765 // Performs the LinkResolver checks
a61af66fc99e Initial load duke parents: diff changeset	766 static void verify_constant_pool_resolve(constantPoolHandle this_oop, KlassHandle klass, TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	767
a61af66fc99e Initial load duke parents: diff changeset	768 // Implementation of methods that needs an exposed 'this' pointer, in order to
a61af66fc99e Initial load duke parents: diff changeset	769 // handle GC while executing the method
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	770 static Klass* klass_at_impl(constantPoolHandle this_oop, int which, TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	771 static oop string_at_impl(constantPoolHandle this_oop, int which, int obj_index, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	772
a61af66fc99e Initial load duke parents: diff changeset	773 // Resolve string constants (to prevent allocation during compilation)
a61af66fc99e Initial load duke parents: diff changeset	774 static void resolve_string_constants_impl(constantPoolHandle this_oop, TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	775
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	776 static oop resolve_constant_at_impl(constantPoolHandle this_oop, int index, int cache_index, TRAPS);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	777 static void save_and_throw_exception(constantPoolHandle this_oop, int which, int tag_value, TRAPS);
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	778 static oop resolve_bootstrap_specifier_at_impl(constantPoolHandle this_oop, int index, TRAPS);
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	779
0 a61af66fc99e Initial load duke parents: diff changeset	780 public:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	781 // Merging ConstantPool* support:
0 a61af66fc99e Initial load duke parents: diff changeset	782 bool compare_entry_to(int index1, constantPoolHandle cp2, int index2, TRAPS);
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	783 void copy_cp_to(int start_i, int end_i, constantPoolHandle to_cp, int to_i, TRAPS) {
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	784 constantPoolHandle h_this(THREAD, this);
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	785 copy_cp_to_impl(h_this, start_i, end_i, to_cp, to_i, THREAD);
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	786 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	787 static void copy_cp_to_impl(constantPoolHandle from_cp, int start_i, int end_i, constantPoolHandle to_cp, int to_i, TRAPS);
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	788 static void copy_entry_to(constantPoolHandle from_cp, int from_i, constantPoolHandle to_cp, int to_i, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	789 int find_matching_entry(int pattern_i, constantPoolHandle search_cp, TRAPS);
7624 b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	790 int version() const { return _saved._version; }
b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	791 void set_version(int version) { _saved._version = version; }
b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	792 void increment_and_save_version(int version) {
7625 b5f6465019f6 8006548: version wrong in new constantPool code coleenp parents: 7624 diff changeset	793 _saved._version = version >= 0 ? (version + 1) : version; // keep overflow
7624 b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	794 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	795
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	796 void set_resolved_reference_length(int length) { _saved._resolved_reference_length = length; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	797 int resolved_reference_length() const { return _saved._resolved_reference_length; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	798 void set_lock(Monitor* lock) { _lock = lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	799 Monitor* lock() { return _lock; }
0 a61af66fc99e Initial load duke parents: diff changeset	800
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	801 // Decrease ref counts of symbols that are in the constant pool
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	802 // when the holder class is unloaded
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	803 void unreference_symbols();
0 a61af66fc99e Initial load duke parents: diff changeset	804
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	805 // Deallocate constant pool for RedefineClasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	806 void deallocate_contents(ClassLoaderData* loader_data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	807 void release_C_heap_structures();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	808
0 a61af66fc99e Initial load duke parents: diff changeset	809 // JVMTI accesss - GetConstantPool, RetransformClasses, ...
a61af66fc99e Initial load duke parents: diff changeset	810 friend class JvmtiConstantPoolReconstituter;
a61af66fc99e Initial load duke parents: diff changeset	811
a61af66fc99e Initial load duke parents: diff changeset	812 private:
a61af66fc99e Initial load duke parents: diff changeset	813 jint cpool_entry_size(jint idx);
a61af66fc99e Initial load duke parents: diff changeset	814 jint hash_entries_to(SymbolHashMap symmap, SymbolHashMap classmap);
a61af66fc99e Initial load duke parents: diff changeset	815
a61af66fc99e Initial load duke parents: diff changeset	816 // Copy cpool bytes into byte array.
a61af66fc99e Initial load duke parents: diff changeset	817 // Returns:
a61af66fc99e Initial load duke parents: diff changeset	818 // int > 0, count of the raw cpool bytes that have been copied
a61af66fc99e Initial load duke parents: diff changeset	819 // 0, OutOfMemory error
a61af66fc99e Initial load duke parents: diff changeset	820 // -1, Internal error
a61af66fc99e Initial load duke parents: diff changeset	821 int copy_cpool_bytes(int cpool_size,
a61af66fc99e Initial load duke parents: diff changeset	822 SymbolHashMap* tbl,
a61af66fc99e Initial load duke parents: diff changeset	823 unsigned char *bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	824
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	825 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	826 // Verify
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	827 void verify_on(outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	828
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	829 // Printing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	830 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	831 void print_value_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	832 void print_entry_on(int index, outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	833
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	834 const char* internal_name() const { return "{constant pool}"; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	835
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	836 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	837 // Compile the world support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	838 static void preload_and_initialize_all_classes(ConstantPool* constant_pool, TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	839 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	840 };
a61af66fc99e Initial load duke parents: diff changeset	841
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	842 class SymbolHashMapEntry : public CHeapObj<mtSymbol> {
0 a61af66fc99e Initial load duke parents: diff changeset	843 private:
a61af66fc99e Initial load duke parents: diff changeset	844 unsigned int _hash; // 32-bit hash for item
a61af66fc99e Initial load duke parents: diff changeset	845 SymbolHashMapEntry* _next; // Next element in the linked list for this bucket
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	846 Symbol* _symbol; // 1-st part of the mapping: symbol => value
0 a61af66fc99e Initial load duke parents: diff changeset	847 u2 _value; // 2-nd part of the mapping: symbol => value
a61af66fc99e Initial load duke parents: diff changeset	848
a61af66fc99e Initial load duke parents: diff changeset	849 public:
a61af66fc99e Initial load duke parents: diff changeset	850 unsigned int hash() const { return _hash; }
a61af66fc99e Initial load duke parents: diff changeset	851 void set_hash(unsigned int hash) { _hash = hash; }
a61af66fc99e Initial load duke parents: diff changeset	852
a61af66fc99e Initial load duke parents: diff changeset	853 SymbolHashMapEntry* next() const { return _next; }
a61af66fc99e Initial load duke parents: diff changeset	854 void set_next(SymbolHashMapEntry* next) { _next = next; }
a61af66fc99e Initial load duke parents: diff changeset	855
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	856 Symbol* symbol() const { return _symbol; }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	857 void set_symbol(Symbol* sym) { _symbol = sym; }
0 a61af66fc99e Initial load duke parents: diff changeset	858
a61af66fc99e Initial load duke parents: diff changeset	859 u2 value() const { return _value; }
a61af66fc99e Initial load duke parents: diff changeset	860 void set_value(u2 value) { _value = value; }
a61af66fc99e Initial load duke parents: diff changeset	861
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	862 SymbolHashMapEntry(unsigned int hash, Symbol* symbol, u2 value)
0 a61af66fc99e Initial load duke parents: diff changeset	863 : _hash(hash), _symbol(symbol), _value(value), _next(NULL) {}
a61af66fc99e Initial load duke parents: diff changeset	864
a61af66fc99e Initial load duke parents: diff changeset	865 }; // End SymbolHashMapEntry class
a61af66fc99e Initial load duke parents: diff changeset	866
a61af66fc99e Initial load duke parents: diff changeset	867
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	868 class SymbolHashMapBucket : public CHeapObj<mtSymbol> {
0 a61af66fc99e Initial load duke parents: diff changeset	869
a61af66fc99e Initial load duke parents: diff changeset	870 private:
a61af66fc99e Initial load duke parents: diff changeset	871 SymbolHashMapEntry* _entry;
a61af66fc99e Initial load duke parents: diff changeset	872
a61af66fc99e Initial load duke parents: diff changeset	873 public:
a61af66fc99e Initial load duke parents: diff changeset	874 SymbolHashMapEntry* entry() const { return _entry; }
a61af66fc99e Initial load duke parents: diff changeset	875 void set_entry(SymbolHashMapEntry* entry) { _entry = entry; }
a61af66fc99e Initial load duke parents: diff changeset	876 void clear() { _entry = NULL; }
a61af66fc99e Initial load duke parents: diff changeset	877
a61af66fc99e Initial load duke parents: diff changeset	878 }; // End SymbolHashMapBucket class
a61af66fc99e Initial load duke parents: diff changeset	879
a61af66fc99e Initial load duke parents: diff changeset	880
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	881 class SymbolHashMap: public CHeapObj<mtSymbol> {
0 a61af66fc99e Initial load duke parents: diff changeset	882
a61af66fc99e Initial load duke parents: diff changeset	883 private:
a61af66fc99e Initial load duke parents: diff changeset	884 // Default number of entries in the table
a61af66fc99e Initial load duke parents: diff changeset	885 enum SymbolHashMap_Constants {
a61af66fc99e Initial load duke parents: diff changeset	886 _Def_HashMap_Size = 256
a61af66fc99e Initial load duke parents: diff changeset	887 };
a61af66fc99e Initial load duke parents: diff changeset	888
a61af66fc99e Initial load duke parents: diff changeset	889 int _table_size;
a61af66fc99e Initial load duke parents: diff changeset	890 SymbolHashMapBucket* _buckets;
a61af66fc99e Initial load duke parents: diff changeset	891
a61af66fc99e Initial load duke parents: diff changeset	892 void initialize_table(int table_size) {
a61af66fc99e Initial load duke parents: diff changeset	893 _table_size = table_size;
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	894 _buckets = NEW_C_HEAP_ARRAY(SymbolHashMapBucket, table_size, mtSymbol);
0 a61af66fc99e Initial load duke parents: diff changeset	895 for (int index = 0; index < table_size; index++) {
a61af66fc99e Initial load duke parents: diff changeset	896 _buckets[index].clear();
a61af66fc99e Initial load duke parents: diff changeset	897 }
a61af66fc99e Initial load duke parents: diff changeset	898 }
a61af66fc99e Initial load duke parents: diff changeset	899
a61af66fc99e Initial load duke parents: diff changeset	900 public:
a61af66fc99e Initial load duke parents: diff changeset	901
a61af66fc99e Initial load duke parents: diff changeset	902 int table_size() const { return _table_size; }
a61af66fc99e Initial load duke parents: diff changeset	903
a61af66fc99e Initial load duke parents: diff changeset	904 SymbolHashMap() { initialize_table(_Def_HashMap_Size); }
a61af66fc99e Initial load duke parents: diff changeset	905 SymbolHashMap(int table_size) { initialize_table(table_size); }
a61af66fc99e Initial load duke parents: diff changeset	906
a61af66fc99e Initial load duke parents: diff changeset	907 // hash P(31) from Kernighan & Ritchie
a61af66fc99e Initial load duke parents: diff changeset	908 static unsigned int compute_hash(const char* str, int len) {
a61af66fc99e Initial load duke parents: diff changeset	909 unsigned int hash = 0;
a61af66fc99e Initial load duke parents: diff changeset	910 while (len-- > 0) {
a61af66fc99e Initial load duke parents: diff changeset	911 hash = 31hash + (unsigned) str;
a61af66fc99e Initial load duke parents: diff changeset	912 str++;
a61af66fc99e Initial load duke parents: diff changeset	913 }
a61af66fc99e Initial load duke parents: diff changeset	914 return hash;
a61af66fc99e Initial load duke parents: diff changeset	915 }
a61af66fc99e Initial load duke parents: diff changeset	916
a61af66fc99e Initial load duke parents: diff changeset	917 SymbolHashMapEntry* bucket(int i) {
a61af66fc99e Initial load duke parents: diff changeset	918 return _buckets[i].entry();
a61af66fc99e Initial load duke parents: diff changeset	919 }
a61af66fc99e Initial load duke parents: diff changeset	920
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	921 void add_entry(Symbol* sym, u2 value);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	922 SymbolHashMapEntry* find_entry(Symbol* sym);
0 a61af66fc99e Initial load duke parents: diff changeset	923
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	924 u2 symbol_to_value(Symbol* sym) {
0 a61af66fc99e Initial load duke parents: diff changeset	925 SymbolHashMapEntry *entry = find_entry(sym);
a61af66fc99e Initial load duke parents: diff changeset	926 return (entry == NULL) ? 0 : entry->value();
a61af66fc99e Initial load duke parents: diff changeset	927 }
a61af66fc99e Initial load duke parents: diff changeset	928
a61af66fc99e Initial load duke parents: diff changeset	929 ~SymbolHashMap() {
a61af66fc99e Initial load duke parents: diff changeset	930 SymbolHashMapEntry* next;
a61af66fc99e Initial load duke parents: diff changeset	931 for (int i = 0; i < _table_size; i++) {
a61af66fc99e Initial load duke parents: diff changeset	932 for (SymbolHashMapEntry* cur = bucket(i); cur != NULL; cur = next) {
a61af66fc99e Initial load duke parents: diff changeset	933 next = cur->next();
a61af66fc99e Initial load duke parents: diff changeset	934 delete(cur);
a61af66fc99e Initial load duke parents: diff changeset	935 }
a61af66fc99e Initial load duke parents: diff changeset	936 }
a61af66fc99e Initial load duke parents: diff changeset	937 delete _buckets;
a61af66fc99e Initial load duke parents: diff changeset	938 }
a61af66fc99e Initial load duke parents: diff changeset	939 }; // End SymbolHashMap class
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	940
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	941 #endif // SHARE_VM_OOPS_CONSTANTPOOLOOP_HPP

Mercurial > hg > truffle

annotate src/share/vm/oops/constantPool.hpp @ 7956:16fb9f942703