graal-compiler: src/share/vm/oops/constantPool.hpp annotate

annotate src/share/vm/oops/constantPool.hpp @ 10185:d50cc62e94ff

8012715: G1: GraphKit accesses PtrQueue::_index as int but is size_t Summary: In graphKit INT operations were generated to access PtrQueue::_index which has type size_t. This is 64 bit on 64-bit machines. No problems occur on little endian machines as long as the index fits into 32 bit, but on big endian machines the upper part is read, which is zero. This leads to unnecessary branches to the slow path in the runtime. Reviewed-by: twisti, johnc Contributed-by: Martin Doerr <martin.doerr@sap.com>

author	johnc
date	Wed, 24 Apr 2013 14:48:43 -0700
parents	f16e75e0cf11
children	5fc51c1ecdeb 15a99ca4ee34

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 {
8104 f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	100 _has_preresolution = 1, // Flags
f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	101 _on_stack = 2
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	102 };
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	103
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	104 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	105 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	106
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	107 union {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	108 // set for CDS to restore resolved references
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	109 int _resolved_reference_length;
7624 b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	110 // keeps version number for redefined classes (used in backtrace)
b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	111 int _version;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	112 } _saved;
0 a61af66fc99e Initial load duke parents: diff changeset	113
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	114 Monitor* _lock;
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 void set_tags(Array<u1>* tags) { _tags = tags; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	117 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	118 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	119
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	120 void set_operands(Array<u2>* operands) { _operands = operands; }
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	121
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	122 int flags() const { return _flags; }
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	123 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	124
0 a61af66fc99e Initial load duke parents: diff changeset	125 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	126 intptr_t* base() const { return (intptr_t) (((char) this) + sizeof(ConstantPool)); }
0 a61af66fc99e Initial load duke parents: diff changeset	127
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	128 CPSlot slot_at(int which) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	129 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	130 // 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	131 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	132 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	133 return CPSlot(adr);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	134 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	135
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	136 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	137 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	138 assert(s.value() != 0, "Caught something");
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	139 (intptr_t)&base()[which] = s.value();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	140 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	141 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	142 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	143 return (intptr_t*) &base()[which];
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	144 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	145
0 a61af66fc99e Initial load duke parents: diff changeset	146 jint* int_at_addr(int which) const {
a61af66fc99e Initial load duke parents: diff changeset	147 assert(is_within_bounds(which), "index out of bounds");
a61af66fc99e Initial load duke parents: diff changeset	148 return (jint*) &base()[which];
a61af66fc99e Initial load duke parents: diff changeset	149 }
a61af66fc99e Initial load duke parents: diff changeset	150
a61af66fc99e Initial load duke parents: diff changeset	151 jlong* long_at_addr(int which) const {
a61af66fc99e Initial load duke parents: diff changeset	152 assert(is_within_bounds(which), "index out of bounds");
a61af66fc99e Initial load duke parents: diff changeset	153 return (jlong*) &base()[which];
a61af66fc99e Initial load duke parents: diff changeset	154 }
a61af66fc99e Initial load duke parents: diff changeset	155
a61af66fc99e Initial load duke parents: diff changeset	156 jfloat* float_at_addr(int which) const {
a61af66fc99e Initial load duke parents: diff changeset	157 assert(is_within_bounds(which), "index out of bounds");
a61af66fc99e Initial load duke parents: diff changeset	158 return (jfloat*) &base()[which];
a61af66fc99e Initial load duke parents: diff changeset	159 }
a61af66fc99e Initial load duke parents: diff changeset	160
a61af66fc99e Initial load duke parents: diff changeset	161 jdouble* double_at_addr(int which) const {
a61af66fc99e Initial load duke parents: diff changeset	162 assert(is_within_bounds(which), "index out of bounds");
a61af66fc99e Initial load duke parents: diff changeset	163 return (jdouble*) &base()[which];
a61af66fc99e Initial load duke parents: diff changeset	164 }
a61af66fc99e Initial load duke parents: diff changeset	165
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	166 ConstantPool(Array<u1>* tags);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	167 ConstantPool() { assert(DumpSharedSpaces \|\| UseSharedSpaces, "only for CDS"); }
0 a61af66fc99e Initial load duke parents: diff changeset	168 public:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	169 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	170
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	171 bool is_constantPool() const volatile { return true; }
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 Array<u1>* tags() const { return _tags; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	174 Array<u2>* operands() const { return _operands; }
0 a61af66fc99e Initial load duke parents: diff changeset	175
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	176 bool has_preresolution() const { return (_flags & _has_preresolution) != 0; }
5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	177 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	178
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	179 // 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	180 // 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	181 // 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	182 // class.
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7625 diff changeset	183 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	184 void set_on_stack(const bool value);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	185
0 a61af66fc99e Initial load duke parents: diff changeset	186 // Klass holding pool
6940 18fb7da42534 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass coleenp parents: 6840 diff changeset	187 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	188 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	189 InstanceKlass** pool_holder_addr() { return &_pool_holder; }
0 a61af66fc99e Initial load duke parents: diff changeset	190
a61af66fc99e Initial load duke parents: diff changeset	191 // Interpreter runtime support
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	192 ConstantPoolCache* cache() const { return _cache; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	193 void set_cache(ConstantPoolCache* cache){ _cache = cache; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	194
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	195 // Create object cache in the constant pool
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	196 void initialize_resolved_references(ClassLoaderData* loader_data,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	197 intStack reference_map,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	198 int constant_pool_map_length,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	199 TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	200
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	201 // 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	202 objArrayOop resolved_references() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	203 // 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	204 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	205 int cp_to_object_index(int index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	206
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	207 // Invokedynamic indexes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	208 // They must look completely different from normal indexes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	209 // 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	210 // 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	211 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	212 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	213 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	214
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	215
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	216 // 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	217 // 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	218 // 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	219 int invokedynamic_cp_cache_index(int index) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	220 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	221 int cache_index = decode_invokedynamic_index(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	222 return cache_index;
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 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	225 // decode index that invokedynamic points to.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	226 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	227 return cache()->entry_at(cp_cache_index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	228 }
0 a61af66fc99e Initial load duke parents: diff changeset	229
a61af66fc99e Initial load duke parents: diff changeset	230 // Assembly code support
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	231 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	232 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	233 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	234 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	235 static int reference_map_offset_in_bytes() { return offset_of(ConstantPool, _reference_map); }
0 a61af66fc99e Initial load duke parents: diff changeset	236
a61af66fc99e Initial load duke parents: diff changeset	237 // Storing constants
a61af66fc99e Initial load duke parents: diff changeset	238
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	239 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	240 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	241 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	242 OrderAccess::release_store_ptr((Klass* volatile *)obj_at_addr_raw(which), k);
0 a61af66fc99e Initial load duke parents: diff changeset	243 // 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	244 // and the Klass* is a klass rather than a Symbol*, so we need
0 a61af66fc99e Initial load duke parents: diff changeset	245 // hardware store ordering here.
a61af66fc99e Initial load duke parents: diff changeset	246 release_tag_at_put(which, JVM_CONSTANT_Class);
a61af66fc99e Initial load duke parents: diff changeset	247 }
a61af66fc99e Initial load duke parents: diff changeset	248
a61af66fc99e Initial load duke parents: diff changeset	249 // For temporary use while constructing constant pool
a61af66fc99e Initial load duke parents: diff changeset	250 void klass_index_at_put(int which, int name_index) {
a61af66fc99e Initial load duke parents: diff changeset	251 tag_at_put(which, JVM_CONSTANT_ClassIndex);
a61af66fc99e Initial load duke parents: diff changeset	252 *int_at_addr(which) = name_index;
a61af66fc99e Initial load duke parents: diff changeset	253 }
a61af66fc99e Initial load duke parents: diff changeset	254
a61af66fc99e Initial load duke parents: diff changeset	255 // Temporary until actual use
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	256 void unresolved_klass_at_put(int which, Symbol* s) {
0 a61af66fc99e Initial load duke parents: diff changeset	257 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	258 slot_at_put(which, s);
0 a61af66fc99e Initial load duke parents: diff changeset	259 }
a61af66fc99e Initial load duke parents: diff changeset	260
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	261 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	262 tag_at_put(which, JVM_CONSTANT_MethodHandle);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	263 *int_at_addr(which) = ((jint) ref_index<<16) \| ref_kind;
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	264 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	265
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	266 void method_type_index_at_put(int which, int ref_index) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	267 tag_at_put(which, JVM_CONSTANT_MethodType);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	268 *int_at_addr(which) = ref_index;
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	269 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	270
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	271 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	272 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	273 *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	274 }
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	275
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	276 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	277 release_tag_at_put(which, JVM_CONSTANT_String);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	278 *symbol_at_addr(which) = s;
0 a61af66fc99e Initial load duke parents: diff changeset	279 }
a61af66fc99e Initial load duke parents: diff changeset	280
a61af66fc99e Initial load duke parents: diff changeset	281 void int_at_put(int which, jint i) {
a61af66fc99e Initial load duke parents: diff changeset	282 tag_at_put(which, JVM_CONSTANT_Integer);
a61af66fc99e Initial load duke parents: diff changeset	283 *int_at_addr(which) = i;
a61af66fc99e Initial load duke parents: diff changeset	284 }
a61af66fc99e Initial load duke parents: diff changeset	285
a61af66fc99e Initial load duke parents: diff changeset	286 void long_at_put(int which, jlong l) {
a61af66fc99e Initial load duke parents: diff changeset	287 tag_at_put(which, JVM_CONSTANT_Long);
a61af66fc99e Initial load duke parents: diff changeset	288 // *long_at_addr(which) = l;
a61af66fc99e Initial load duke parents: diff changeset	289 Bytes::put_native_u8((address)long_at_addr(which), ((u8) &l));
a61af66fc99e Initial load duke parents: diff changeset	290 }
a61af66fc99e Initial load duke parents: diff changeset	291
a61af66fc99e Initial load duke parents: diff changeset	292 void float_at_put(int which, jfloat f) {
a61af66fc99e Initial load duke parents: diff changeset	293 tag_at_put(which, JVM_CONSTANT_Float);
a61af66fc99e Initial load duke parents: diff changeset	294 *float_at_addr(which) = f;
a61af66fc99e Initial load duke parents: diff changeset	295 }
a61af66fc99e Initial load duke parents: diff changeset	296
a61af66fc99e Initial load duke parents: diff changeset	297 void double_at_put(int which, jdouble d) {
a61af66fc99e Initial load duke parents: diff changeset	298 tag_at_put(which, JVM_CONSTANT_Double);
a61af66fc99e Initial load duke parents: diff changeset	299 // *double_at_addr(which) = d;
a61af66fc99e Initial load duke parents: diff changeset	300 // u8 temp = (u8) &d;
a61af66fc99e Initial load duke parents: diff changeset	301 Bytes::put_native_u8((address) double_at_addr(which), ((u8) &d));
a61af66fc99e Initial load duke parents: diff changeset	302 }
a61af66fc99e Initial load duke parents: diff changeset	303
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	304 Symbol** symbol_at_addr(int which) const {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	305 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	306 return (Symbol**) &base()[which];
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	307 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	308
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	309 void symbol_at_put(int which, Symbol* s) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	310 assert(s->refcount() != 0, "should have nonzero refcount");
0 a61af66fc99e Initial load duke parents: diff changeset	311 tag_at_put(which, JVM_CONSTANT_Utf8);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	312 *symbol_at_addr(which) = s;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	313 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	314
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	315 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	316 resolved_references()->obj_at_put(obj_index, str);
0 a61af66fc99e Initial load duke parents: diff changeset	317 }
a61af66fc99e Initial load duke parents: diff changeset	318
a61af66fc99e Initial load duke parents: diff changeset	319 // For temporary use while constructing constant pool
a61af66fc99e Initial load duke parents: diff changeset	320 void string_index_at_put(int which, int string_index) {
a61af66fc99e Initial load duke parents: diff changeset	321 tag_at_put(which, JVM_CONSTANT_StringIndex);
a61af66fc99e Initial load duke parents: diff changeset	322 *int_at_addr(which) = string_index;
a61af66fc99e Initial load duke parents: diff changeset	323 }
a61af66fc99e Initial load duke parents: diff changeset	324
a61af66fc99e Initial load duke parents: diff changeset	325 void field_at_put(int which, int class_index, int name_and_type_index) {
a61af66fc99e Initial load duke parents: diff changeset	326 tag_at_put(which, JVM_CONSTANT_Fieldref);
a61af66fc99e Initial load duke parents: diff changeset	327 *int_at_addr(which) = ((jint) name_and_type_index<<16) \| class_index;
a61af66fc99e Initial load duke parents: diff changeset	328 }
a61af66fc99e Initial load duke parents: diff changeset	329
a61af66fc99e Initial load duke parents: diff changeset	330 void method_at_put(int which, int class_index, int name_and_type_index) {
a61af66fc99e Initial load duke parents: diff changeset	331 tag_at_put(which, JVM_CONSTANT_Methodref);
a61af66fc99e Initial load duke parents: diff changeset	332 *int_at_addr(which) = ((jint) name_and_type_index<<16) \| class_index;
a61af66fc99e Initial load duke parents: diff changeset	333 }
a61af66fc99e Initial load duke parents: diff changeset	334
a61af66fc99e Initial load duke parents: diff changeset	335 void interface_method_at_put(int which, int class_index, int name_and_type_index) {
a61af66fc99e Initial load duke parents: diff changeset	336 tag_at_put(which, JVM_CONSTANT_InterfaceMethodref);
a61af66fc99e Initial load duke parents: diff changeset	337 *int_at_addr(which) = ((jint) name_and_type_index<<16) \| class_index; // Not so nice
a61af66fc99e Initial load duke parents: diff changeset	338 }
a61af66fc99e Initial load duke parents: diff changeset	339
a61af66fc99e Initial load duke parents: diff changeset	340 void name_and_type_at_put(int which, int name_index, int signature_index) {
a61af66fc99e Initial load duke parents: diff changeset	341 tag_at_put(which, JVM_CONSTANT_NameAndType);
a61af66fc99e Initial load duke parents: diff changeset	342 *int_at_addr(which) = ((jint) signature_index<<16) \| name_index; // Not so nice
a61af66fc99e Initial load duke parents: diff changeset	343 }
a61af66fc99e Initial load duke parents: diff changeset	344
a61af66fc99e Initial load duke parents: diff changeset	345 // Tag query
a61af66fc99e Initial load duke parents: diff changeset	346
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	347 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	348
0 a61af66fc99e Initial load duke parents: diff changeset	349 // Fetching constants
a61af66fc99e Initial load duke parents: diff changeset	350
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	351 Klass* klass_at(int which, TRAPS) {
0 a61af66fc99e Initial load duke parents: diff changeset	352 constantPoolHandle h_this(THREAD, this);
a61af66fc99e Initial load duke parents: diff changeset	353 return klass_at_impl(h_this, which, CHECK_NULL);
a61af66fc99e Initial load duke parents: diff changeset	354 }
a61af66fc99e Initial load duke parents: diff changeset	355
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	356 Symbol* klass_name_at(int which); // Returns the name, w/o resolving.
0 a61af66fc99e Initial load duke parents: diff changeset	357
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	358 Klass* resolved_klass_at(int which) { // Used by Compiler
0 a61af66fc99e Initial load duke parents: diff changeset	359 guarantee(tag_at(which).is_klass(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	360 // Must do an acquire here in case another thread resolved the klass
a61af66fc99e Initial load duke parents: diff changeset	361 // 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	362 return CPSlot((Klass*)OrderAccess::load_ptr_acquire(obj_at_addr_raw(which))).get_klass();
0 a61af66fc99e Initial load duke parents: diff changeset	363 }
a61af66fc99e Initial load duke parents: diff changeset	364
a61af66fc99e Initial load duke parents: diff changeset	365 // 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	366 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	367 Symbol* s = CPSlot((Symbol*)OrderAccess::load_ptr_acquire(obj_at_addr_raw(which))).get_symbol();
0 a61af66fc99e Initial load duke parents: diff changeset	368 // check that the klass is still unresolved.
a61af66fc99e Initial load duke parents: diff changeset	369 assert(tag_at(which).is_unresolved_klass(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	370 return s;
a61af66fc99e Initial load duke parents: diff changeset	371 }
a61af66fc99e Initial load duke parents: diff changeset	372
a61af66fc99e Initial load duke parents: diff changeset	373 // RedefineClasses() API support:
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	374 Symbol* klass_at_noresolve(int which) { return klass_name_at(which); }
0 a61af66fc99e Initial load duke parents: diff changeset	375
a61af66fc99e Initial load duke parents: diff changeset	376 jint int_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	377 assert(tag_at(which).is_int(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	378 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	379 }
a61af66fc99e Initial load duke parents: diff changeset	380
a61af66fc99e Initial load duke parents: diff changeset	381 jlong long_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	382 assert(tag_at(which).is_long(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	383 // return *long_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	384 u8 tmp = Bytes::get_native_u8((address)&base()[which]);
a61af66fc99e Initial load duke parents: diff changeset	385 return ((jlong)&tmp);
a61af66fc99e Initial load duke parents: diff changeset	386 }
a61af66fc99e Initial load duke parents: diff changeset	387
a61af66fc99e Initial load duke parents: diff changeset	388 jfloat float_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	389 assert(tag_at(which).is_float(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	390 return *float_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	391 }
a61af66fc99e Initial load duke parents: diff changeset	392
a61af66fc99e Initial load duke parents: diff changeset	393 jdouble double_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	394 assert(tag_at(which).is_double(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	395 u8 tmp = Bytes::get_native_u8((address)&base()[which]);
a61af66fc99e Initial load duke parents: diff changeset	396 return ((jdouble)&tmp);
a61af66fc99e Initial load duke parents: diff changeset	397 }
a61af66fc99e Initial load duke parents: diff changeset	398
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	399 Symbol* symbol_at(int which) {
0 a61af66fc99e Initial load duke parents: diff changeset	400 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	401 return *symbol_at_addr(which);
0 a61af66fc99e Initial load duke parents: diff changeset	402 }
a61af66fc99e Initial load duke parents: diff changeset	403
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	404 oop string_at(int which, int obj_index, TRAPS) {
0 a61af66fc99e Initial load duke parents: diff changeset	405 constantPoolHandle h_this(THREAD, this);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	406 return string_at_impl(h_this, which, obj_index, THREAD);
0 a61af66fc99e Initial load duke parents: diff changeset	407 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	408 oop string_at(int which, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	409 int obj_index = cp_to_object_index(which);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	410 return string_at(which, obj_index, THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	411 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	412
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	413 // 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	414 oop uncached_string_at(int which, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	415
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	416 // 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	417 // a String entry.
2416 38fea01eb669 6817525: turn on method handle functionality by default for JSR 292 twisti parents: 2192 diff changeset	418 // 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	419 // 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	420 // 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	421 // 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	422
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	423 bool is_pseudo_string_at(int which) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	424 // 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	425 return unresolved_string_at(which) == NULL;
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	426 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	427
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	428 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	429 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	430 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	431 oop s = resolved_references()->obj_at(obj_index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	432 return s;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	433 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	434
8104 f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	435 oop pseudo_string_at(int which) {
f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	436 assert(tag_at(which).is_string(), "Corrupted constant pool");
f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	437 assert(unresolved_string_at(which) == NULL, "shouldn't have symbol");
f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	438 int obj_index = cp_to_object_index(which);
f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	439 oop s = resolved_references()->obj_at(obj_index);
f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	440 return s;
f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	441 }
f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	442
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	443 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	444 assert(EnableInvokeDynamic, "");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	445 assert(tag_at(which).is_string(), "Corrupted constant pool");
8104 f16e75e0cf11 8000797: NPG: is_pseudo_string_at() doesn't work coleenp parents: 7957 diff changeset	446 unresolved_string_at_put(which, NULL); // indicates patched string
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	447 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	448 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	449
0 a61af66fc99e Initial load duke parents: diff changeset	450 // only called when we are sure a string entry is already resolved (via an
a61af66fc99e Initial load duke parents: diff changeset	451 // earlier string_at call.
a61af66fc99e Initial load duke parents: diff changeset	452 oop resolved_string_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	453 assert(tag_at(which).is_string(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	454 // Must do an acquire here in case another thread resolved the klass
a61af66fc99e Initial load duke parents: diff changeset	455 // 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	456 // 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	457 int obj_index = cp_to_object_index(which);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	458 return resolved_references()->obj_at(obj_index);
0 a61af66fc99e Initial load duke parents: diff changeset	459 }
a61af66fc99e Initial load duke parents: diff changeset	460
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	461 Symbol* unresolved_string_at(int which) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	462 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	463 Symbol* s = *symbol_at_addr(which);
0 a61af66fc99e Initial load duke parents: diff changeset	464 return s;
a61af66fc99e Initial load duke parents: diff changeset	465 }
a61af66fc99e Initial load duke parents: diff changeset	466
a61af66fc99e Initial load duke parents: diff changeset	467 // Returns an UTF8 for a CONSTANT_String entry at a given index.
a61af66fc99e Initial load duke parents: diff changeset	468 // 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	469 // java_lang_Strings at resolved entries into Symbol*s
0 a61af66fc99e Initial load duke parents: diff changeset	470 // or vice versa.
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	471 // Caller is responsible for checking for pseudo-strings.
0 a61af66fc99e Initial load duke parents: diff changeset	472 char* string_at_noresolve(int which);
a61af66fc99e Initial load duke parents: diff changeset	473
a61af66fc99e Initial load duke parents: diff changeset	474 jint name_and_type_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	475 assert(tag_at(which).is_name_and_type(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	476 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	477 }
a61af66fc99e Initial load duke parents: diff changeset	478
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	479 int method_handle_ref_kind_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	480 assert(tag_at(which).is_method_handle(), "Corrupted constant pool");
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	481 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	482 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	483 int method_handle_index_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	484 assert(tag_at(which).is_method_handle(), "Corrupted constant pool");
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	485 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	486 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	487 int method_type_index_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	488 assert(tag_at(which).is_method_type(), "Corrupted constant pool");
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	489 return *int_at_addr(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	490 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	491 // Derived queries:
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	492 Symbol* method_handle_name_ref_at(int which) {
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	493 int member = method_handle_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	494 return impl_name_ref_at(member, true);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	495 }
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	496 Symbol* method_handle_signature_ref_at(int which) {
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	497 int member = method_handle_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	498 return impl_signature_ref_at(member, true);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	499 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	500 int method_handle_klass_index_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	501 int member = method_handle_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	502 return impl_klass_ref_index_at(member, true);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	503 }
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	504 Symbol* method_type_signature_at(int which) {
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	505 int sym = method_type_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	506 return symbol_at(sym);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	507 }
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	508
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	509 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	510 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	511 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	512 }
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	513 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	514 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	515 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	516 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	517 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	518 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	519 return operand_offset_at(operands(), bootstrap_specifier_index);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	520 }
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	521 // 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	522 // 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	523 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	524 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	525 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	526 // 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	527 // 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	528 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	529 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	530 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	531 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	532 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	533 // 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	534 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	535 return offset;
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	536 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	537 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	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");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	540 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	541 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	542 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	543 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	544 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	545 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	546 return (second_part / 2);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	547 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	548
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	549 #ifdef ASSERT
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	550 // 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	551 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	552 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	553 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	554 return operands->length();
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	555 else
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	556 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	557 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	558 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	559 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	560 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	561 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	562 #endif //ASSERT
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	563
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	564 // 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	565 enum {
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	566 _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	567 _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	568 _indy_argv_offset = 2 // u2 argv[argc]
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	569 };
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1602 diff changeset	570 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	571 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	572 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	573 return operands()->at(op_base + _indy_bsm_offset);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	574 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	575 int invoke_dynamic_argument_count_at(int which) {
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	576 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	577 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	578 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	579 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	580 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	581 assert(end_offset == next_offset, "matched ending");
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	582 return argc;
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	583 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	584 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	585 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	586 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	587 assert((uint)j < (uint)argc, "oob");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	588 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	589 }
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	590
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	591 // 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	592 // 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	593 // directly from the bytecode.
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	594 // 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	595 // actually rewritten constant pool cache indices.
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	596 // The routine remap_instruction_operand_from_cache manages the adjustment
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	597 // of these values back to constant pool indices.
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	598
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	599 // There are also "uncached" versions which do not adjust the operand index; see below.
0 a61af66fc99e Initial load duke parents: diff changeset	600
1910 d1896d1dda3e 6981788: GC map generator sometimes picks up the wrong kind of instruction operand jrose parents: 1660 diff changeset	601 // 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	602 // 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	603 // 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	604 // 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	605
0 a61af66fc99e Initial load duke parents: diff changeset	606 // 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	607 Klass* klass_ref_at(int which, TRAPS);
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	608 Symbol* klass_ref_at_noresolve(int which);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	609 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	610 Symbol* signature_ref_at(int which) { return impl_signature_ref_at(which, false); }
0 a61af66fc99e Initial load duke parents: diff changeset	611
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	612 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	613 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	614
a61af66fc99e Initial load duke parents: diff changeset	615 // Lookup for entries consisting of (name_index, signature_index)
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	616 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	617 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	618
a61af66fc99e Initial load duke parents: diff changeset	619 BasicType basic_type_for_signature_at(int which);
a61af66fc99e Initial load duke parents: diff changeset	620
a61af66fc99e Initial load duke parents: diff changeset	621 // Resolve string constants (to prevent allocation during compilation)
a61af66fc99e Initial load duke parents: diff changeset	622 void resolve_string_constants(TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	623 constantPoolHandle h_this(THREAD, this);
a61af66fc99e Initial load duke parents: diff changeset	624 resolve_string_constants_impl(h_this, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	625 }
a61af66fc99e Initial load duke parents: diff changeset	626
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	627 // CDS support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	628 void remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	629 void restore_unshareable_info(TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	630 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	631 // 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	632 // 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	633 // 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	634 // 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	635 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	636
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	637 private:
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	638 enum { _no_index_sentinel = -1, _possible_index_sentinel = -2 };
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	639 public:
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	640
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	641 // Resolve late bound constants.
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	642 oop resolve_constant_at(int index, TRAPS) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	643 constantPoolHandle h_this(THREAD, this);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	644 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	645 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	646
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	647 oop resolve_cached_constant_at(int cache_index, TRAPS) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	648 constantPoolHandle h_this(THREAD, this);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	649 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	650 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	651
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	652 oop resolve_possibly_cached_constant_at(int pool_index, TRAPS) {
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	653 constantPoolHandle h_this(THREAD, this);
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	654 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	655 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	656
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	657 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	658 constantPoolHandle h_this(THREAD, this);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	659 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	660 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	661
0 a61af66fc99e Initial load duke parents: diff changeset	662 // Klass name matches name at offset
a61af66fc99e Initial load duke parents: diff changeset	663 bool klass_name_at_matches(instanceKlassHandle k, int which);
a61af66fc99e Initial load duke parents: diff changeset	664
a61af66fc99e Initial load duke parents: diff changeset	665 // Sizing
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	666 int length() const { return _length; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	667 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	668
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	669 // 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	670 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	671 return 0 <= index && index < length();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	672 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	673
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	674 // Sizing (in words)
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	675 static int header_size() { return sizeof(ConstantPool)/HeapWordSize; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	676 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	677 int size() const { return size(length()); }
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	678 #if INCLUDE_SERVICES
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	679 void collect_statistics(KlassSizeStats *sz) const;
16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	680 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	681
a61af66fc99e Initial load duke parents: diff changeset	682 friend class ClassFileParser;
a61af66fc99e Initial load duke parents: diff changeset	683 friend class SystemDictionary;
a61af66fc99e Initial load duke parents: diff changeset	684
a61af66fc99e Initial load duke parents: diff changeset	685 // 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	686 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	687 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	688 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	689 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	690 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	691 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	692 static Klass* klass_ref_at_if_loaded (constantPoolHandle this_oop, int which);
0 a61af66fc99e Initial load duke parents: diff changeset	693 // 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	694 static Klass* klass_ref_at_if_loaded_check(constantPoolHandle this_oop, int which, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	695
a61af66fc99e Initial load duke parents: diff changeset	696 // 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	697 // future by other Java code. These take constant pool indices rather than
0 a61af66fc99e Initial load duke parents: diff changeset	698 // 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	699 Symbol* uncached_klass_ref_at_noresolve(int which);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	700 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	701 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	702 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	703 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	704
a61af66fc99e Initial load duke parents: diff changeset	705 // Sharing
a61af66fc99e Initial load duke parents: diff changeset	706 int pre_resolve_shared_klasses(TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	707
a61af66fc99e Initial load duke parents: diff changeset	708 // Debugging
a61af66fc99e Initial load duke parents: diff changeset	709 const char* printable_name_at(int which) PRODUCT_RETURN0;
a61af66fc99e Initial load duke parents: diff changeset	710
1565 ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	711 #ifdef ASSERT
ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	712 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	713 #else
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	714 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	715 #endif //ASSERT
ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	716
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	717 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	718 if (invokedynamic_ok && is_invokedynamic_index(raw_index))
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	719 return decode_invokedynamic_index(raw_index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	720 else
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	721 return raw_index - CPCACHE_INDEX_TAG;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	722 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	723
0 a61af66fc99e Initial load duke parents: diff changeset	724 private:
a61af66fc99e Initial load duke parents: diff changeset	725
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	726 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	727 Array<u2>* reference_map() const { return _reference_map; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	728 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	729
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	730 // 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	731 void patch_resolved_references(GrowableArray<Handle>* cp_patches);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	732
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	733 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	734 Symbol* impl_signature_ref_at(int which, bool uncached);
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	735 int impl_klass_ref_index_at(int which, bool uncached);
be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	736 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	737
1565 ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	738 int remap_instruction_operand_from_cache(int operand); // operand must be biased by CPCACHE_INDEX_TAG
0 a61af66fc99e Initial load duke parents: diff changeset	739
a61af66fc99e Initial load duke parents: diff changeset	740 // Used while constructing constant pool (only by ClassFileParser)
a61af66fc99e Initial load duke parents: diff changeset	741 jint klass_index_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	742 assert(tag_at(which).is_klass_index(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	743 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	744 }
a61af66fc99e Initial load duke parents: diff changeset	745
a61af66fc99e Initial load duke parents: diff changeset	746 jint string_index_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	747 assert(tag_at(which).is_string_index(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	748 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	749 }
a61af66fc99e Initial load duke parents: diff changeset	750
a61af66fc99e Initial load duke parents: diff changeset	751 // Performs the LinkResolver checks
a61af66fc99e Initial load duke parents: diff changeset	752 static void verify_constant_pool_resolve(constantPoolHandle this_oop, KlassHandle klass, TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	753
a61af66fc99e Initial load duke parents: diff changeset	754 // Implementation of methods that needs an exposed 'this' pointer, in order to
a61af66fc99e Initial load duke parents: diff changeset	755 // handle GC while executing the method
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	756 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	757 static oop string_at_impl(constantPoolHandle this_oop, int which, int obj_index, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	758
a61af66fc99e Initial load duke parents: diff changeset	759 // Resolve string constants (to prevent allocation during compilation)
a61af66fc99e Initial load duke parents: diff changeset	760 static void resolve_string_constants_impl(constantPoolHandle this_oop, TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	761
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	762 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	763 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	764 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	765
0 a61af66fc99e Initial load duke parents: diff changeset	766 public:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	767 // Merging ConstantPool* support:
0 a61af66fc99e Initial load duke parents: diff changeset	768 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	769 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	770 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	771 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	772 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	773 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	774 static void copy_entry_to(constantPoolHandle from_cp, int from_i, constantPoolHandle to_cp, int to_i, TRAPS);
7952 edd76a5856f7 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to sspitsyn parents: 7949 diff changeset	775 static void copy_operands(constantPoolHandle from_cp, constantPoolHandle to_cp, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	776 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	777 int version() const { return _saved._version; }
b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	778 void set_version(int version) { _saved._version = version; }
b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	779 void increment_and_save_version(int version) {
7625 b5f6465019f6 8006548: version wrong in new constantPool code coleenp parents: 7624 diff changeset	780 _saved._version = version >= 0 ? (version + 1) : version; // keep overflow
7624 b14da2e6f2dc 7174978: NPG: Fix bactrace builder for class redefinition coleenp parents: 6940 diff changeset	781 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	782
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	783 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	784 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	785 void set_lock(Monitor* lock) { _lock = lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	786 Monitor* lock() { return _lock; }
0 a61af66fc99e Initial load duke parents: diff changeset	787
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	788 // 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	789 // when the holder class is unloaded
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	790 void unreference_symbols();
0 a61af66fc99e Initial load duke parents: diff changeset	791
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	792 // Deallocate constant pool for RedefineClasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	793 void deallocate_contents(ClassLoaderData* loader_data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	794 void release_C_heap_structures();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	795
0 a61af66fc99e Initial load duke parents: diff changeset	796 // JVMTI accesss - GetConstantPool, RetransformClasses, ...
a61af66fc99e Initial load duke parents: diff changeset	797 friend class JvmtiConstantPoolReconstituter;
a61af66fc99e Initial load duke parents: diff changeset	798
a61af66fc99e Initial load duke parents: diff changeset	799 private:
a61af66fc99e Initial load duke parents: diff changeset	800 jint cpool_entry_size(jint idx);
a61af66fc99e Initial load duke parents: diff changeset	801 jint hash_entries_to(SymbolHashMap symmap, SymbolHashMap classmap);
a61af66fc99e Initial load duke parents: diff changeset	802
a61af66fc99e Initial load duke parents: diff changeset	803 // Copy cpool bytes into byte array.
a61af66fc99e Initial load duke parents: diff changeset	804 // Returns:
a61af66fc99e Initial load duke parents: diff changeset	805 // int > 0, count of the raw cpool bytes that have been copied
a61af66fc99e Initial load duke parents: diff changeset	806 // 0, OutOfMemory error
a61af66fc99e Initial load duke parents: diff changeset	807 // -1, Internal error
a61af66fc99e Initial load duke parents: diff changeset	808 int copy_cpool_bytes(int cpool_size,
a61af66fc99e Initial load duke parents: diff changeset	809 SymbolHashMap* tbl,
a61af66fc99e Initial load duke parents: diff changeset	810 unsigned char *bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	811
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	812 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	813 // Verify
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	814 void verify_on(outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	815
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	816 // Printing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	817 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	818 void print_value_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	819 void print_entry_on(int index, outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	820
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	821 const char* internal_name() const { return "{constant pool}"; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	822
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	823 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	824 // Compile the world support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	825 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	826 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	827 };
a61af66fc99e Initial load duke parents: diff changeset	828
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	829 class SymbolHashMapEntry : public CHeapObj<mtSymbol> {
0 a61af66fc99e Initial load duke parents: diff changeset	830 private:
a61af66fc99e Initial load duke parents: diff changeset	831 unsigned int _hash; // 32-bit hash for item
a61af66fc99e Initial load duke parents: diff changeset	832 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	833 Symbol* _symbol; // 1-st part of the mapping: symbol => value
0 a61af66fc99e Initial load duke parents: diff changeset	834 u2 _value; // 2-nd part of the mapping: symbol => value
a61af66fc99e Initial load duke parents: diff changeset	835
a61af66fc99e Initial load duke parents: diff changeset	836 public:
a61af66fc99e Initial load duke parents: diff changeset	837 unsigned int hash() const { return _hash; }
a61af66fc99e Initial load duke parents: diff changeset	838 void set_hash(unsigned int hash) { _hash = hash; }
a61af66fc99e Initial load duke parents: diff changeset	839
a61af66fc99e Initial load duke parents: diff changeset	840 SymbolHashMapEntry* next() const { return _next; }
a61af66fc99e Initial load duke parents: diff changeset	841 void set_next(SymbolHashMapEntry* next) { _next = next; }
a61af66fc99e Initial load duke parents: diff changeset	842
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	843 Symbol* symbol() const { return _symbol; }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	844 void set_symbol(Symbol* sym) { _symbol = sym; }
0 a61af66fc99e Initial load duke parents: diff changeset	845
a61af66fc99e Initial load duke parents: diff changeset	846 u2 value() const { return _value; }
a61af66fc99e Initial load duke parents: diff changeset	847 void set_value(u2 value) { _value = value; }
a61af66fc99e Initial load duke parents: diff changeset	848
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	849 SymbolHashMapEntry(unsigned int hash, Symbol* symbol, u2 value)
0 a61af66fc99e Initial load duke parents: diff changeset	850 : _hash(hash), _symbol(symbol), _value(value), _next(NULL) {}
a61af66fc99e Initial load duke parents: diff changeset	851
a61af66fc99e Initial load duke parents: diff changeset	852 }; // End SymbolHashMapEntry class
a61af66fc99e Initial load duke parents: diff changeset	853
a61af66fc99e Initial load duke parents: diff changeset	854
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	855 class SymbolHashMapBucket : public CHeapObj<mtSymbol> {
0 a61af66fc99e Initial load duke parents: diff changeset	856
a61af66fc99e Initial load duke parents: diff changeset	857 private:
a61af66fc99e Initial load duke parents: diff changeset	858 SymbolHashMapEntry* _entry;
a61af66fc99e Initial load duke parents: diff changeset	859
a61af66fc99e Initial load duke parents: diff changeset	860 public:
a61af66fc99e Initial load duke parents: diff changeset	861 SymbolHashMapEntry* entry() const { return _entry; }
a61af66fc99e Initial load duke parents: diff changeset	862 void set_entry(SymbolHashMapEntry* entry) { _entry = entry; }
a61af66fc99e Initial load duke parents: diff changeset	863 void clear() { _entry = NULL; }
a61af66fc99e Initial load duke parents: diff changeset	864
a61af66fc99e Initial load duke parents: diff changeset	865 }; // End SymbolHashMapBucket 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 SymbolHashMap: 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 // Default number of entries in the table
a61af66fc99e Initial load duke parents: diff changeset	872 enum SymbolHashMap_Constants {
a61af66fc99e Initial load duke parents: diff changeset	873 _Def_HashMap_Size = 256
a61af66fc99e Initial load duke parents: diff changeset	874 };
a61af66fc99e Initial load duke parents: diff changeset	875
a61af66fc99e Initial load duke parents: diff changeset	876 int _table_size;
a61af66fc99e Initial load duke parents: diff changeset	877 SymbolHashMapBucket* _buckets;
a61af66fc99e Initial load duke parents: diff changeset	878
a61af66fc99e Initial load duke parents: diff changeset	879 void initialize_table(int table_size) {
a61af66fc99e Initial load duke parents: diff changeset	880 _table_size = table_size;
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	881 _buckets = NEW_C_HEAP_ARRAY(SymbolHashMapBucket, table_size, mtSymbol);
0 a61af66fc99e Initial load duke parents: diff changeset	882 for (int index = 0; index < table_size; index++) {
a61af66fc99e Initial load duke parents: diff changeset	883 _buckets[index].clear();
a61af66fc99e Initial load duke parents: diff changeset	884 }
a61af66fc99e Initial load duke parents: diff changeset	885 }
a61af66fc99e Initial load duke parents: diff changeset	886
a61af66fc99e Initial load duke parents: diff changeset	887 public:
a61af66fc99e Initial load duke parents: diff changeset	888
a61af66fc99e Initial load duke parents: diff changeset	889 int table_size() const { return _table_size; }
a61af66fc99e Initial load duke parents: diff changeset	890
a61af66fc99e Initial load duke parents: diff changeset	891 SymbolHashMap() { initialize_table(_Def_HashMap_Size); }
a61af66fc99e Initial load duke parents: diff changeset	892 SymbolHashMap(int table_size) { initialize_table(table_size); }
a61af66fc99e Initial load duke parents: diff changeset	893
a61af66fc99e Initial load duke parents: diff changeset	894 // hash P(31) from Kernighan & Ritchie
a61af66fc99e Initial load duke parents: diff changeset	895 static unsigned int compute_hash(const char* str, int len) {
a61af66fc99e Initial load duke parents: diff changeset	896 unsigned int hash = 0;
a61af66fc99e Initial load duke parents: diff changeset	897 while (len-- > 0) {
a61af66fc99e Initial load duke parents: diff changeset	898 hash = 31hash + (unsigned) str;
a61af66fc99e Initial load duke parents: diff changeset	899 str++;
a61af66fc99e Initial load duke parents: diff changeset	900 }
a61af66fc99e Initial load duke parents: diff changeset	901 return hash;
a61af66fc99e Initial load duke parents: diff changeset	902 }
a61af66fc99e Initial load duke parents: diff changeset	903
a61af66fc99e Initial load duke parents: diff changeset	904 SymbolHashMapEntry* bucket(int i) {
a61af66fc99e Initial load duke parents: diff changeset	905 return _buckets[i].entry();
a61af66fc99e Initial load duke parents: diff changeset	906 }
a61af66fc99e Initial load duke parents: diff changeset	907
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	908 void add_entry(Symbol* sym, u2 value);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	909 SymbolHashMapEntry* find_entry(Symbol* sym);
0 a61af66fc99e Initial load duke parents: diff changeset	910
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	911 u2 symbol_to_value(Symbol* sym) {
0 a61af66fc99e Initial load duke parents: diff changeset	912 SymbolHashMapEntry *entry = find_entry(sym);
a61af66fc99e Initial load duke parents: diff changeset	913 return (entry == NULL) ? 0 : entry->value();
a61af66fc99e Initial load duke parents: diff changeset	914 }
a61af66fc99e Initial load duke parents: diff changeset	915
a61af66fc99e Initial load duke parents: diff changeset	916 ~SymbolHashMap() {
a61af66fc99e Initial load duke parents: diff changeset	917 SymbolHashMapEntry* next;
a61af66fc99e Initial load duke parents: diff changeset	918 for (int i = 0; i < _table_size; i++) {
a61af66fc99e Initial load duke parents: diff changeset	919 for (SymbolHashMapEntry* cur = bucket(i); cur != NULL; cur = next) {
a61af66fc99e Initial load duke parents: diff changeset	920 next = cur->next();
a61af66fc99e Initial load duke parents: diff changeset	921 delete(cur);
a61af66fc99e Initial load duke parents: diff changeset	922 }
a61af66fc99e Initial load duke parents: diff changeset	923 }
a61af66fc99e Initial load duke parents: diff changeset	924 delete _buckets;
a61af66fc99e Initial load duke parents: diff changeset	925 }
a61af66fc99e Initial load duke parents: diff changeset	926 }; // End SymbolHashMap class
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	927
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	928 #endif // SHARE_VM_OOPS_CONSTANTPOOLOOP_HPP

Mercurial > hg > graal-compiler

annotate src/share/vm/oops/constantPool.hpp @ 10185:d50cc62e94ff