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

annotate src/share/vm/oops/constantPool.hpp @ 6862:8a5ea0a9ccc4

7127708: G1: change task num types from int to uint in concurrent mark Summary: Change the type of various task num fields, parameters etc to unsigned and rename them to be more consistent with the other collectors. Code changes were also reviewed by Vitaly Davidovich. Reviewed-by: johnc Contributed-by: Kaushik Srenevasan <kaushik@twitter.com>

author	johnc
date	Sat, 06 Oct 2012 01:17:44 -0700
parents	f6b0eb4e44cf
children	6e5a59a8e4a7

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	2 * Copyright (c) 1997, 2012, 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
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	83 class ConstantPool : public Metadata {
0 a61af66fc99e Initial load duke parents: diff changeset	84 friend class VMStructs;
a61af66fc99e Initial load duke parents: diff changeset	85 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	86 friend class Universe; // For null constructor
0 a61af66fc99e Initial load duke parents: diff changeset	87 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	88 Array<u1>* _tags; // the tag array describing the constant pool's contents
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	89 ConstantPoolCache* _cache; // the cache holding interpreter runtime information
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	90 Klass* _pool_holder; // the corresponding class
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	91 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	92
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	93 // 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	94 // object index to original constant pool index
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	95 jobject _resolved_references;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	96 Array<u2>* _reference_map;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	97
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	98 int _flags; // a few header bits to describe contents for GC
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	99 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	100
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	101 bool _on_stack; // Redefined method still executing refers to this constant pool.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	102
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	103 union {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	104 // set for CDS to restore resolved references
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	105 int _resolved_reference_length;
0 a61af66fc99e Initial load duke parents: diff changeset	106 // only set to non-zero if constant pool is merged by RedefineClasses
a61af66fc99e Initial load duke parents: diff changeset	107 int _orig_length;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	108 } _saved;
0 a61af66fc99e Initial load duke parents: diff changeset	109
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	110 Monitor* _lock;
0 a61af66fc99e Initial load duke parents: diff changeset	111
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	112 void set_tags(Array<u1>* tags) { _tags = tags; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	113 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	114 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	115
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	116 void set_operands(Array<u2>* operands) { _operands = operands; }
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	117
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	118 enum FlagBit {
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	119 FB_has_invokedynamic = 1,
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 2460 diff changeset	120 FB_has_pseudo_string = 2,
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 2460 diff changeset	121 FB_has_preresolution = 3
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	122 };
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	123
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	124 int flags() const { return _flags; }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	125 void set_flags(int f) { _flags = f; }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	126 bool flag_at(FlagBit fb) const { return (_flags & (1 << (int)fb)) != 0; }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	127 void set_flag_at(FlagBit fb);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	128 // no clear_flag_at function; they only increase
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	129
0 a61af66fc99e Initial load duke parents: diff changeset	130 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	131 intptr_t* base() const { return (intptr_t) (((char) this) + sizeof(ConstantPool)); }
0 a61af66fc99e Initial load duke parents: diff changeset	132
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	133 CPSlot slot_at(int which) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	134 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	135 // 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	136 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	137 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	138 return CPSlot(adr);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	139 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	140
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	141 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	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 assert(s.value() != 0, "Caught something");
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	144 (intptr_t)&base()[which] = s.value();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	145 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	146 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	147 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	148 return (intptr_t*) &base()[which];
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	149 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	150
0 a61af66fc99e Initial load duke parents: diff changeset	151 jint* int_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 (jint*) &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 jlong* long_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 (jlong*) &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 jfloat* float_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 (jfloat*) &base()[which];
a61af66fc99e Initial load duke parents: diff changeset	164 }
a61af66fc99e Initial load duke parents: diff changeset	165
a61af66fc99e Initial load duke parents: diff changeset	166 jdouble* double_at_addr(int which) const {
a61af66fc99e Initial load duke parents: diff changeset	167 assert(is_within_bounds(which), "index out of bounds");
a61af66fc99e Initial load duke parents: diff changeset	168 return (jdouble*) &base()[which];
a61af66fc99e Initial load duke parents: diff changeset	169 }
a61af66fc99e Initial load duke parents: diff changeset	170
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	171 ConstantPool(Array<u1>* tags);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	172 ConstantPool() { assert(DumpSharedSpaces \|\| UseSharedSpaces, "only for CDS"); }
0 a61af66fc99e Initial load duke parents: diff changeset	173 public:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	174 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	175
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	176 bool is_constantPool() const volatile { return true; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	177
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	178 Array<u1>* tags() const { return _tags; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	179 Array<u2>* operands() const { return _operands; }
0 a61af66fc99e Initial load duke parents: diff changeset	180
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	181 bool has_pseudo_string() const { return flag_at(FB_has_pseudo_string); }
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	182 bool has_invokedynamic() const { return flag_at(FB_has_invokedynamic); }
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 2460 diff changeset	183 bool has_preresolution() const { return flag_at(FB_has_preresolution); }
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	184 void set_pseudo_string() { set_flag_at(FB_has_pseudo_string); }
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	185 void set_invokedynamic() { set_flag_at(FB_has_invokedynamic); }
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 2460 diff changeset	186 void set_preresolution() { set_flag_at(FB_has_preresolution); }
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	187
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	188 // 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	189 // 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	190 // 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	191 // class.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	192 bool on_stack() const { return _on_stack; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	193 void set_on_stack(const bool value);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	194
0 a61af66fc99e Initial load duke parents: diff changeset	195 // Klass holding pool
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	196 Klass* pool_holder() const { return _pool_holder; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	197 void set_pool_holder(Klass* k) { _pool_holder = k; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	198 Klass** pool_holder_addr() { return &_pool_holder; }
0 a61af66fc99e Initial load duke parents: diff changeset	199
a61af66fc99e Initial load duke parents: diff changeset	200 // Interpreter runtime support
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	201 ConstantPoolCache* cache() const { return _cache; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	202 void set_cache(ConstantPoolCache* cache){ _cache = cache; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	203
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	204 // Create object cache in the constant pool
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	205 void initialize_resolved_references(ClassLoaderData* loader_data,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	206 intStack reference_map,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	207 int constant_pool_map_length,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	208 TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	209
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	210 // 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	211 objArrayOop resolved_references() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	212 // 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	213 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	214 int cp_to_object_index(int index);
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 // Invokedynamic indexes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	217 // They must look completely different from normal indexes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	218 // 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	219 // 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	220 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	221 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	222 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	223
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	224
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	225 // 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	226 // 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	227 // 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	228 int invokedynamic_cp_cache_index(int index) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	229 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	230 int cache_index = decode_invokedynamic_index(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	231 return cache_index;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	232 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	233 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	234 // decode index that invokedynamic points to.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	235 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	236 return cache()->entry_at(cp_cache_index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	237 }
0 a61af66fc99e Initial load duke parents: diff changeset	238
a61af66fc99e Initial load duke parents: diff changeset	239 // Assembly code support
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	240 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	241 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	242 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	243 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	244 static int reference_map_offset_in_bytes() { return offset_of(ConstantPool, _reference_map); }
0 a61af66fc99e Initial load duke parents: diff changeset	245
a61af66fc99e Initial load duke parents: diff changeset	246 // Storing constants
a61af66fc99e Initial load duke parents: diff changeset	247
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	248 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	249 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	250 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	251 OrderAccess::release_store_ptr((Klass* volatile *)obj_at_addr_raw(which), k);
0 a61af66fc99e Initial load duke parents: diff changeset	252 // 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	253 // and the Klass* is a klass rather than a Symbol*, so we need
0 a61af66fc99e Initial load duke parents: diff changeset	254 // hardware store ordering here.
a61af66fc99e Initial load duke parents: diff changeset	255 release_tag_at_put(which, JVM_CONSTANT_Class);
a61af66fc99e Initial load duke parents: diff changeset	256 }
a61af66fc99e Initial load duke parents: diff changeset	257
a61af66fc99e Initial load duke parents: diff changeset	258 // For temporary use while constructing constant pool
a61af66fc99e Initial load duke parents: diff changeset	259 void klass_index_at_put(int which, int name_index) {
a61af66fc99e Initial load duke parents: diff changeset	260 tag_at_put(which, JVM_CONSTANT_ClassIndex);
a61af66fc99e Initial load duke parents: diff changeset	261 *int_at_addr(which) = name_index;
a61af66fc99e Initial load duke parents: diff changeset	262 }
a61af66fc99e Initial load duke parents: diff changeset	263
a61af66fc99e Initial load duke parents: diff changeset	264 // Temporary until actual use
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	265 void unresolved_klass_at_put(int which, Symbol* s) {
0 a61af66fc99e Initial load duke parents: diff changeset	266 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	267 slot_at_put(which, s);
0 a61af66fc99e Initial load duke parents: diff changeset	268 }
a61af66fc99e Initial load duke parents: diff changeset	269
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	270 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	271 tag_at_put(which, JVM_CONSTANT_MethodHandle);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	272 *int_at_addr(which) = ((jint) ref_index<<16) \| ref_kind;
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	273 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	274
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	275 void method_type_index_at_put(int which, int ref_index) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	276 tag_at_put(which, JVM_CONSTANT_MethodType);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	277 *int_at_addr(which) = ref_index;
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	278 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	279
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	280 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	281 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	282 *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	283 }
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	284
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	285 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	286 release_tag_at_put(which, JVM_CONSTANT_String);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	287 *symbol_at_addr(which) = s;
0 a61af66fc99e Initial load duke parents: diff changeset	288 }
a61af66fc99e Initial load duke parents: diff changeset	289
a61af66fc99e Initial load duke parents: diff changeset	290 void int_at_put(int which, jint i) {
a61af66fc99e Initial load duke parents: diff changeset	291 tag_at_put(which, JVM_CONSTANT_Integer);
a61af66fc99e Initial load duke parents: diff changeset	292 *int_at_addr(which) = i;
a61af66fc99e Initial load duke parents: diff changeset	293 }
a61af66fc99e Initial load duke parents: diff changeset	294
a61af66fc99e Initial load duke parents: diff changeset	295 void long_at_put(int which, jlong l) {
a61af66fc99e Initial load duke parents: diff changeset	296 tag_at_put(which, JVM_CONSTANT_Long);
a61af66fc99e Initial load duke parents: diff changeset	297 // *long_at_addr(which) = l;
a61af66fc99e Initial load duke parents: diff changeset	298 Bytes::put_native_u8((address)long_at_addr(which), ((u8) &l));
a61af66fc99e Initial load duke parents: diff changeset	299 }
a61af66fc99e Initial load duke parents: diff changeset	300
a61af66fc99e Initial load duke parents: diff changeset	301 void float_at_put(int which, jfloat f) {
a61af66fc99e Initial load duke parents: diff changeset	302 tag_at_put(which, JVM_CONSTANT_Float);
a61af66fc99e Initial load duke parents: diff changeset	303 *float_at_addr(which) = f;
a61af66fc99e Initial load duke parents: diff changeset	304 }
a61af66fc99e Initial load duke parents: diff changeset	305
a61af66fc99e Initial load duke parents: diff changeset	306 void double_at_put(int which, jdouble d) {
a61af66fc99e Initial load duke parents: diff changeset	307 tag_at_put(which, JVM_CONSTANT_Double);
a61af66fc99e Initial load duke parents: diff changeset	308 // *double_at_addr(which) = d;
a61af66fc99e Initial load duke parents: diff changeset	309 // u8 temp = (u8) &d;
a61af66fc99e Initial load duke parents: diff changeset	310 Bytes::put_native_u8((address) double_at_addr(which), ((u8) &d));
a61af66fc99e Initial load duke parents: diff changeset	311 }
a61af66fc99e Initial load duke parents: diff changeset	312
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	313 Symbol** symbol_at_addr(int which) const {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	314 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	315 return (Symbol**) &base()[which];
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	316 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	317
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	318 void symbol_at_put(int which, Symbol* s) {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	319 assert(s->refcount() != 0, "should have nonzero refcount");
0 a61af66fc99e Initial load duke parents: diff changeset	320 tag_at_put(which, JVM_CONSTANT_Utf8);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	321 *symbol_at_addr(which) = s;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	322 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	323
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	324 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	325 resolved_references()->obj_at_put(obj_index, str);
0 a61af66fc99e Initial load duke parents: diff changeset	326 }
a61af66fc99e Initial load duke parents: diff changeset	327
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	328 void set_object_tag_at(int which) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	329 release_tag_at_put(which, JVM_CONSTANT_Object);
0 a61af66fc99e Initial load duke parents: diff changeset	330 }
a61af66fc99e Initial load duke parents: diff changeset	331
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	332 void object_at_put(int which, oop obj) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	333 resolved_references()->obj_at_put(cp_to_object_index(which), obj);
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	334 }
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	335
0 a61af66fc99e Initial load duke parents: diff changeset	336 // For temporary use while constructing constant pool
a61af66fc99e Initial load duke parents: diff changeset	337 void string_index_at_put(int which, int string_index) {
a61af66fc99e Initial load duke parents: diff changeset	338 tag_at_put(which, JVM_CONSTANT_StringIndex);
a61af66fc99e Initial load duke parents: diff changeset	339 *int_at_addr(which) = string_index;
a61af66fc99e Initial load duke parents: diff changeset	340 }
a61af66fc99e Initial load duke parents: diff changeset	341
a61af66fc99e Initial load duke parents: diff changeset	342 void field_at_put(int which, int class_index, int name_and_type_index) {
a61af66fc99e Initial load duke parents: diff changeset	343 tag_at_put(which, JVM_CONSTANT_Fieldref);
a61af66fc99e Initial load duke parents: diff changeset	344 *int_at_addr(which) = ((jint) name_and_type_index<<16) \| class_index;
a61af66fc99e Initial load duke parents: diff changeset	345 }
a61af66fc99e Initial load duke parents: diff changeset	346
a61af66fc99e Initial load duke parents: diff changeset	347 void method_at_put(int which, int class_index, int name_and_type_index) {
a61af66fc99e Initial load duke parents: diff changeset	348 tag_at_put(which, JVM_CONSTANT_Methodref);
a61af66fc99e Initial load duke parents: diff changeset	349 *int_at_addr(which) = ((jint) name_and_type_index<<16) \| class_index;
a61af66fc99e Initial load duke parents: diff changeset	350 }
a61af66fc99e Initial load duke parents: diff changeset	351
a61af66fc99e Initial load duke parents: diff changeset	352 void interface_method_at_put(int which, int class_index, int name_and_type_index) {
a61af66fc99e Initial load duke parents: diff changeset	353 tag_at_put(which, JVM_CONSTANT_InterfaceMethodref);
a61af66fc99e Initial load duke parents: diff changeset	354 *int_at_addr(which) = ((jint) name_and_type_index<<16) \| class_index; // Not so nice
a61af66fc99e Initial load duke parents: diff changeset	355 }
a61af66fc99e Initial load duke parents: diff changeset	356
a61af66fc99e Initial load duke parents: diff changeset	357 void name_and_type_at_put(int which, int name_index, int signature_index) {
a61af66fc99e Initial load duke parents: diff changeset	358 tag_at_put(which, JVM_CONSTANT_NameAndType);
a61af66fc99e Initial load duke parents: diff changeset	359 *int_at_addr(which) = ((jint) signature_index<<16) \| name_index; // Not so nice
a61af66fc99e Initial load duke parents: diff changeset	360 }
a61af66fc99e Initial load duke parents: diff changeset	361
a61af66fc99e Initial load duke parents: diff changeset	362 // Tag query
a61af66fc99e Initial load duke parents: diff changeset	363
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	364 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	365
0 a61af66fc99e Initial load duke parents: diff changeset	366 // Fetching constants
a61af66fc99e Initial load duke parents: diff changeset	367
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	368 Klass* klass_at(int which, TRAPS) {
0 a61af66fc99e Initial load duke parents: diff changeset	369 constantPoolHandle h_this(THREAD, this);
a61af66fc99e Initial load duke parents: diff changeset	370 return klass_at_impl(h_this, which, CHECK_NULL);
a61af66fc99e Initial load duke parents: diff changeset	371 }
a61af66fc99e Initial load duke parents: diff changeset	372
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	373 Symbol* klass_name_at(int which); // Returns the name, w/o resolving.
0 a61af66fc99e Initial load duke parents: diff changeset	374
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	375 Klass* resolved_klass_at(int which) { // Used by Compiler
0 a61af66fc99e Initial load duke parents: diff changeset	376 guarantee(tag_at(which).is_klass(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	377 // Must do an acquire here in case another thread resolved the klass
a61af66fc99e Initial load duke parents: diff changeset	378 // 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	379 return CPSlot((Klass*)OrderAccess::load_ptr_acquire(obj_at_addr_raw(which))).get_klass();
0 a61af66fc99e Initial load duke parents: diff changeset	380 }
a61af66fc99e Initial load duke parents: diff changeset	381
a61af66fc99e Initial load duke parents: diff changeset	382 // 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	383 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	384 Symbol* s = CPSlot((Symbol*)OrderAccess::load_ptr_acquire(obj_at_addr_raw(which))).get_symbol();
0 a61af66fc99e Initial load duke parents: diff changeset	385 // check that the klass is still unresolved.
a61af66fc99e Initial load duke parents: diff changeset	386 assert(tag_at(which).is_unresolved_klass(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	387 return s;
a61af66fc99e Initial load duke parents: diff changeset	388 }
a61af66fc99e Initial load duke parents: diff changeset	389
a61af66fc99e Initial load duke parents: diff changeset	390 // RedefineClasses() API support:
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	391 Symbol* klass_at_noresolve(int which) { return klass_name_at(which); }
0 a61af66fc99e Initial load duke parents: diff changeset	392
a61af66fc99e Initial load duke parents: diff changeset	393 jint int_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	394 assert(tag_at(which).is_int(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	395 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	396 }
a61af66fc99e Initial load duke parents: diff changeset	397
a61af66fc99e Initial load duke parents: diff changeset	398 jlong long_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	399 assert(tag_at(which).is_long(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	400 // return *long_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	401 u8 tmp = Bytes::get_native_u8((address)&base()[which]);
a61af66fc99e Initial load duke parents: diff changeset	402 return ((jlong)&tmp);
a61af66fc99e Initial load duke parents: diff changeset	403 }
a61af66fc99e Initial load duke parents: diff changeset	404
a61af66fc99e Initial load duke parents: diff changeset	405 jfloat float_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	406 assert(tag_at(which).is_float(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	407 return *float_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	408 }
a61af66fc99e Initial load duke parents: diff changeset	409
a61af66fc99e Initial load duke parents: diff changeset	410 jdouble double_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	411 assert(tag_at(which).is_double(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	412 u8 tmp = Bytes::get_native_u8((address)&base()[which]);
a61af66fc99e Initial load duke parents: diff changeset	413 return ((jdouble)&tmp);
a61af66fc99e Initial load duke parents: diff changeset	414 }
a61af66fc99e Initial load duke parents: diff changeset	415
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	416 Symbol* symbol_at(int which) {
0 a61af66fc99e Initial load duke parents: diff changeset	417 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	418 return *symbol_at_addr(which);
0 a61af66fc99e Initial load duke parents: diff changeset	419 }
a61af66fc99e Initial load duke parents: diff changeset	420
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	421 oop string_at(int which, int obj_index, TRAPS) {
0 a61af66fc99e Initial load duke parents: diff changeset	422 constantPoolHandle h_this(THREAD, this);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	423 return string_at_impl(h_this, which, obj_index, THREAD);
0 a61af66fc99e Initial load duke parents: diff changeset	424 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	425 oop string_at(int which, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	426 int obj_index = cp_to_object_index(which);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	427 return string_at(which, obj_index, THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	428 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	429
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	430 // 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	431 oop uncached_string_at(int which, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	432
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	433 oop object_at(int which) {
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	434 assert(tag_at(which).is_object(), "Corrupted constant pool");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	435 int obj_index = cp_to_object_index(which);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	436 return resolved_references()->obj_at(obj_index);
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	437 }
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 1059 diff changeset	438
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	439 // 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	440 // a String entry.
2416 38fea01eb669 6817525: turn on method handle functionality by default for JSR 292 twisti parents: 2192 diff changeset	441 // 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	442 // 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	443 // 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	444 // 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	445
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	446 bool is_pseudo_string_at(int which) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	447 // 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	448 return unresolved_string_at(which) == NULL;
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	449 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	450
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	451 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	452 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	453 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	454 oop s = resolved_references()->obj_at(obj_index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	455 return s;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	456 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	457
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	458 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	459 assert(EnableInvokeDynamic, "");
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	460 set_pseudo_string(); // mark header
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	461 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	462 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	463 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	464
0 a61af66fc99e Initial load duke parents: diff changeset	465 // only called when we are sure a string entry is already resolved (via an
a61af66fc99e Initial load duke parents: diff changeset	466 // earlier string_at call.
a61af66fc99e Initial load duke parents: diff changeset	467 oop resolved_string_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	468 assert(tag_at(which).is_string(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	469 // Must do an acquire here in case another thread resolved the klass
a61af66fc99e Initial load duke parents: diff changeset	470 // 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	471 // we might want a volatile_obj_at in objArrayKlass.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	472 int obj_index = cp_to_object_index(which);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	473 return resolved_references()->obj_at(obj_index);
0 a61af66fc99e Initial load duke parents: diff changeset	474 }
a61af66fc99e Initial load duke parents: diff changeset	475
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	476 Symbol* unresolved_string_at(int which) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	477 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	478 Symbol* s = *symbol_at_addr(which);
0 a61af66fc99e Initial load duke parents: diff changeset	479 return s;
a61af66fc99e Initial load duke parents: diff changeset	480 }
a61af66fc99e Initial load duke parents: diff changeset	481
a61af66fc99e Initial load duke parents: diff changeset	482 // Returns an UTF8 for a CONSTANT_String entry at a given index.
a61af66fc99e Initial load duke parents: diff changeset	483 // 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	484 // java_lang_Strings at resolved entries into Symbol*s
0 a61af66fc99e Initial load duke parents: diff changeset	485 // or vice versa.
431 a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes jrose parents: 196 diff changeset	486 // Caller is responsible for checking for pseudo-strings.
0 a61af66fc99e Initial load duke parents: diff changeset	487 char* string_at_noresolve(int which);
a61af66fc99e Initial load duke parents: diff changeset	488
a61af66fc99e Initial load duke parents: diff changeset	489 jint name_and_type_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	490 assert(tag_at(which).is_name_and_type(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	491 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	492 }
a61af66fc99e Initial load duke parents: diff changeset	493
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	494 int method_handle_ref_kind_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	495 assert(tag_at(which).is_method_handle(), "Corrupted constant pool");
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	496 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	497 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	498 int method_handle_index_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	499 assert(tag_at(which).is_method_handle(), "Corrupted constant pool");
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	500 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	501 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	502 int method_type_index_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	503 assert(tag_at(which).is_method_type(), "Corrupted constant pool");
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	504 return *int_at_addr(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	505 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	506 // Derived queries:
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	507 Symbol* method_handle_name_ref_at(int which) {
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	508 int member = method_handle_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	509 return impl_name_ref_at(member, true);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	510 }
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	511 Symbol* method_handle_signature_ref_at(int which) {
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	512 int member = method_handle_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	513 return impl_signature_ref_at(member, true);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	514 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	515 int method_handle_klass_index_at(int which) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	516 int member = method_handle_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	517 return impl_klass_ref_index_at(member, true);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	518 }
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	519 Symbol* method_type_signature_at(int which) {
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	520 int sym = method_type_index_at(which);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	521 return symbol_at(sym);
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	522 }
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	523
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	524 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	525 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	526 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	527 }
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	528 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	529 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	530 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	531 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	532 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	533 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	534 return operand_offset_at(operands(), bootstrap_specifier_index);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	535 }
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	536 // 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	537 // 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	538 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	539 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	540 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	541 // 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	542 // 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	543 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	544 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	545 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	546 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	547 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	548 // 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	549 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	550 return offset;
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	551 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	552 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	553 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	554 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	555 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	556 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	557 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	558 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	559 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	560 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	561 return (second_part / 2);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	562 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	563
2011 dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	564 #ifdef ASSERT
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	565 // 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	566 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	567 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	568 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	569 return operands->length();
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	570 else
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	571 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	572 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	573 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	574 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	575 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	576 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	577 #endif //ASSERT
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	578
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	579 // 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	580 enum {
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	581 _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	582 _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	583 _indy_argv_offset = 2 // u2 argv[argc]
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	584 };
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1602 diff changeset	585 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	586 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	587 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	588 return operands()->at(op_base + _indy_bsm_offset);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	589 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	590 int invoke_dynamic_argument_count_at(int which) {
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	591 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	592 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	593 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	594 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	595 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	596 assert(end_offset == next_offset, "matched ending");
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	597 return argc;
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	598 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	599 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	600 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	601 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	602 assert((uint)j < (uint)argc, "oob");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	603 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	604 }
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	605
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	606 // 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	607 // 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	608 // directly from the bytecode.
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	609 // 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	610 // actually rewritten constant pool cache indices.
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	611 // The routine remap_instruction_operand_from_cache manages the adjustment
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	612 // of these values back to constant pool indices.
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	613
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 726 diff changeset	614 // There are also "uncached" versions which do not adjust the operand index; see below.
0 a61af66fc99e Initial load duke parents: diff changeset	615
1910 d1896d1dda3e 6981788: GC map generator sometimes picks up the wrong kind of instruction operand jrose parents: 1660 diff changeset	616 // 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	617 // 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	618 // 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	619 // 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	620
0 a61af66fc99e Initial load duke parents: diff changeset	621 // 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	622 Klass* klass_ref_at(int which, TRAPS);
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	623 Symbol* klass_ref_at_noresolve(int which);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	624 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	625 Symbol* signature_ref_at(int which) { return impl_signature_ref_at(which, false); }
0 a61af66fc99e Initial load duke parents: diff changeset	626
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	627 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	628 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	629
a61af66fc99e Initial load duke parents: diff changeset	630 // Lookup for entries consisting of (name_index, signature_index)
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	631 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	632 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	633
a61af66fc99e Initial load duke parents: diff changeset	634 BasicType basic_type_for_signature_at(int which);
a61af66fc99e Initial load duke parents: diff changeset	635
a61af66fc99e Initial load duke parents: diff changeset	636 // Resolve string constants (to prevent allocation during compilation)
a61af66fc99e Initial load duke parents: diff changeset	637 void resolve_string_constants(TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	638 constantPoolHandle h_this(THREAD, this);
a61af66fc99e Initial load duke parents: diff changeset	639 resolve_string_constants_impl(h_this, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	640 }
a61af66fc99e Initial load duke parents: diff changeset	641
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	642 // CDS support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	643 void remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	644 void restore_unshareable_info(TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	645 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	646 // 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	647 // 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	648 // 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	649 // 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	650 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	651
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	652 private:
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	653 enum { _no_index_sentinel = -1, _possible_index_sentinel = -2 };
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	654 public:
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	655
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	656 // Resolve late bound constants.
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	657 oop resolve_constant_at(int index, TRAPS) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	658 constantPoolHandle h_this(THREAD, this);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	659 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	660 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	661
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	662 oop resolve_cached_constant_at(int cache_index, TRAPS) {
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	663 constantPoolHandle h_this(THREAD, this);
1913 3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	664 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	665 }
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	666
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	667 oop resolve_possibly_cached_constant_at(int pool_index, TRAPS) {
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	668 constantPoolHandle h_this(THREAD, this);
3b2dea75431e 6984311: JSR 292 needs optional bootstrap method parameters jrose parents: 1910 diff changeset	669 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	670 }
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	671
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	672 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	673 constantPoolHandle h_this(THREAD, this);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	674 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	675 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	676
0 a61af66fc99e Initial load duke parents: diff changeset	677 // Klass name matches name at offset
a61af66fc99e Initial load duke parents: diff changeset	678 bool klass_name_at_matches(instanceKlassHandle k, int which);
a61af66fc99e Initial load duke parents: diff changeset	679
a61af66fc99e Initial load duke parents: diff changeset	680 // Sizing
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	681 int length() const { return _length; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	682 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	683
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	684 // 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	685 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	686 return 0 <= index && index < length();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	687 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	688
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	689 static int header_size() { return sizeof(ConstantPool)/HeapWordSize; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	690 static int size(int length) { return align_object_size(header_size() + length); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	691 int size() const { return size(length()); }
0 a61af66fc99e Initial load duke parents: diff changeset	692
a61af66fc99e Initial load duke parents: diff changeset	693 friend class ClassFileParser;
a61af66fc99e Initial load duke parents: diff changeset	694 friend class SystemDictionary;
a61af66fc99e Initial load duke parents: diff changeset	695
a61af66fc99e Initial load duke parents: diff changeset	696 // 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	697 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	698 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	699 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	700 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	701 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	702 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	703 static Klass* klass_ref_at_if_loaded (constantPoolHandle this_oop, int which);
0 a61af66fc99e Initial load duke parents: diff changeset	704 // 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	705 static Klass* klass_ref_at_if_loaded_check(constantPoolHandle this_oop, int which, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	706
a61af66fc99e Initial load duke parents: diff changeset	707 // 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	708 // future by other Java code. These take constant pool indices rather than
0 a61af66fc99e Initial load duke parents: diff changeset	709 // 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	710 Symbol* uncached_klass_ref_at_noresolve(int which);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	711 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	712 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	713 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	714 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	715
a61af66fc99e Initial load duke parents: diff changeset	716 // Sharing
a61af66fc99e Initial load duke parents: diff changeset	717 int pre_resolve_shared_klasses(TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	718
a61af66fc99e Initial load duke parents: diff changeset	719 // Debugging
a61af66fc99e Initial load duke parents: diff changeset	720 const char* printable_name_at(int which) PRODUCT_RETURN0;
a61af66fc99e Initial load duke parents: diff changeset	721
1565 ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	722 #ifdef ASSERT
ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	723 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	724 #else
136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	725 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	726 #endif //ASSERT
ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	727
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	728 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	729 if (invokedynamic_ok && is_invokedynamic_index(raw_index))
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	730 return decode_invokedynamic_index(raw_index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	731 else
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	732 return raw_index - CPCACHE_INDEX_TAG;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	733 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 6197 diff changeset	734
0 a61af66fc99e Initial load duke parents: diff changeset	735 private:
a61af66fc99e Initial load duke parents: diff changeset	736
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	737 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	738 Array<u2>* reference_map() const { return _reference_map; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	739 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	740
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	741 // 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	742 void patch_resolved_references(GrowableArray<Handle>* cp_patches);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	743
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	744 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	745 Symbol* impl_signature_ref_at(int which, bool uncached);
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	746 int impl_klass_ref_index_at(int which, bool uncached);
be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 579 diff changeset	747 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	748
1565 ab102d5d923e 6939207: refactor constant pool index processing jrose parents: 1138 diff changeset	749 int remap_instruction_operand_from_cache(int operand); // operand must be biased by CPCACHE_INDEX_TAG
0 a61af66fc99e Initial load duke parents: diff changeset	750
a61af66fc99e Initial load duke parents: diff changeset	751 // Used while constructing constant pool (only by ClassFileParser)
a61af66fc99e Initial load duke parents: diff changeset	752 jint klass_index_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	753 assert(tag_at(which).is_klass_index(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	754 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	755 }
a61af66fc99e Initial load duke parents: diff changeset	756
a61af66fc99e Initial load duke parents: diff changeset	757 jint string_index_at(int which) {
a61af66fc99e Initial load duke parents: diff changeset	758 assert(tag_at(which).is_string_index(), "Corrupted constant pool");
a61af66fc99e Initial load duke parents: diff changeset	759 return *int_at_addr(which);
a61af66fc99e Initial load duke parents: diff changeset	760 }
a61af66fc99e Initial load duke parents: diff changeset	761
a61af66fc99e Initial load duke parents: diff changeset	762 // Performs the LinkResolver checks
a61af66fc99e Initial load duke parents: diff changeset	763 static void verify_constant_pool_resolve(constantPoolHandle this_oop, KlassHandle klass, TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	764
a61af66fc99e Initial load duke parents: diff changeset	765 // Implementation of methods that needs an exposed 'this' pointer, in order to
a61af66fc99e Initial load duke parents: diff changeset	766 // handle GC while executing the method
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	767 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	768 static oop string_at_impl(constantPoolHandle this_oop, int which, int obj_index, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	769
a61af66fc99e Initial load duke parents: diff changeset	770 // Resolve string constants (to prevent allocation during compilation)
a61af66fc99e Initial load duke parents: diff changeset	771 static void resolve_string_constants_impl(constantPoolHandle this_oop, TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	772
1602 136b78722a08 6939203: JSR 292 needs method handle constants jrose parents: 1579 diff changeset	773 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	774 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	775 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	776
0 a61af66fc99e Initial load duke parents: diff changeset	777 public:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	778 // Merging ConstantPool* support:
0 a61af66fc99e Initial load duke parents: diff changeset	779 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	780 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	781 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	782 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	783 }
dad31fc330cd 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute jrose parents: 1972 diff changeset	784 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	785 static void copy_entry_to(constantPoolHandle from_cp, int from_i, constantPoolHandle to_cp, int to_i, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	786 int find_matching_entry(int pattern_i, constantPoolHandle search_cp, TRAPS);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	787 int orig_length() const { return _saved._orig_length; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	788 void set_orig_length(int orig_length) { _saved._orig_length = orig_length; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	789
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	790 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	791 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	792 void set_lock(Monitor* lock) { _lock = lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	793 Monitor* lock() { return _lock; }
0 a61af66fc99e Initial load duke parents: diff changeset	794
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	795 // 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	796 // when the holder class is unloaded
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	797 void unreference_symbols();
0 a61af66fc99e Initial load duke parents: diff changeset	798
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	799 // Deallocate constant pool for RedefineClasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	800 void deallocate_contents(ClassLoaderData* loader_data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	801 void release_C_heap_structures();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	802
0 a61af66fc99e Initial load duke parents: diff changeset	803 // JVMTI accesss - GetConstantPool, RetransformClasses, ...
a61af66fc99e Initial load duke parents: diff changeset	804 friend class JvmtiConstantPoolReconstituter;
a61af66fc99e Initial load duke parents: diff changeset	805
a61af66fc99e Initial load duke parents: diff changeset	806 private:
a61af66fc99e Initial load duke parents: diff changeset	807 jint cpool_entry_size(jint idx);
a61af66fc99e Initial load duke parents: diff changeset	808 jint hash_entries_to(SymbolHashMap symmap, SymbolHashMap classmap);
a61af66fc99e Initial load duke parents: diff changeset	809
a61af66fc99e Initial load duke parents: diff changeset	810 // Copy cpool bytes into byte array.
a61af66fc99e Initial load duke parents: diff changeset	811 // Returns:
a61af66fc99e Initial load duke parents: diff changeset	812 // int > 0, count of the raw cpool bytes that have been copied
a61af66fc99e Initial load duke parents: diff changeset	813 // 0, OutOfMemory error
a61af66fc99e Initial load duke parents: diff changeset	814 // -1, Internal error
a61af66fc99e Initial load duke parents: diff changeset	815 int copy_cpool_bytes(int cpool_size,
a61af66fc99e Initial load duke parents: diff changeset	816 SymbolHashMap* tbl,
a61af66fc99e Initial load duke parents: diff changeset	817 unsigned char *bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	818
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	819 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	820 // Verify
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	821 void verify_on(outputStream* st);
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 // Printing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	824 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	825 void print_value_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	826 void print_entry_on(int index, outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	827
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	828 const char* internal_name() const { return "{constant pool}"; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	829
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	830 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	831 // Compile the world support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6266 diff changeset	832 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	833 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	834 };
a61af66fc99e Initial load duke parents: diff changeset	835
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	836 class SymbolHashMapEntry : public CHeapObj<mtSymbol> {
0 a61af66fc99e Initial load duke parents: diff changeset	837 private:
a61af66fc99e Initial load duke parents: diff changeset	838 unsigned int _hash; // 32-bit hash for item
a61af66fc99e Initial load duke parents: diff changeset	839 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	840 Symbol* _symbol; // 1-st part of the mapping: symbol => value
0 a61af66fc99e Initial load duke parents: diff changeset	841 u2 _value; // 2-nd part of the mapping: symbol => value
a61af66fc99e Initial load duke parents: diff changeset	842
a61af66fc99e Initial load duke parents: diff changeset	843 public:
a61af66fc99e Initial load duke parents: diff changeset	844 unsigned int hash() const { return _hash; }
a61af66fc99e Initial load duke parents: diff changeset	845 void set_hash(unsigned int hash) { _hash = hash; }
a61af66fc99e Initial load duke parents: diff changeset	846
a61af66fc99e Initial load duke parents: diff changeset	847 SymbolHashMapEntry* next() const { return _next; }
a61af66fc99e Initial load duke parents: diff changeset	848 void set_next(SymbolHashMapEntry* next) { _next = next; }
a61af66fc99e Initial load duke parents: diff changeset	849
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	850 Symbol* symbol() const { return _symbol; }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	851 void set_symbol(Symbol* sym) { _symbol = sym; }
0 a61af66fc99e Initial load duke parents: diff changeset	852
a61af66fc99e Initial load duke parents: diff changeset	853 u2 value() const { return _value; }
a61af66fc99e Initial load duke parents: diff changeset	854 void set_value(u2 value) { _value = value; }
a61af66fc99e Initial load duke parents: diff changeset	855
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	856 SymbolHashMapEntry(unsigned int hash, Symbol* symbol, u2 value)
0 a61af66fc99e Initial load duke parents: diff changeset	857 : _hash(hash), _symbol(symbol), _value(value), _next(NULL) {}
a61af66fc99e Initial load duke parents: diff changeset	858
a61af66fc99e Initial load duke parents: diff changeset	859 }; // End SymbolHashMapEntry class
a61af66fc99e Initial load duke parents: diff changeset	860
a61af66fc99e Initial load duke parents: diff changeset	861
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	862 class SymbolHashMapBucket : public CHeapObj<mtSymbol> {
0 a61af66fc99e Initial load duke parents: diff changeset	863
a61af66fc99e Initial load duke parents: diff changeset	864 private:
a61af66fc99e Initial load duke parents: diff changeset	865 SymbolHashMapEntry* _entry;
a61af66fc99e Initial load duke parents: diff changeset	866
a61af66fc99e Initial load duke parents: diff changeset	867 public:
a61af66fc99e Initial load duke parents: diff changeset	868 SymbolHashMapEntry* entry() const { return _entry; }
a61af66fc99e Initial load duke parents: diff changeset	869 void set_entry(SymbolHashMapEntry* entry) { _entry = entry; }
a61af66fc99e Initial load duke parents: diff changeset	870 void clear() { _entry = NULL; }
a61af66fc99e Initial load duke parents: diff changeset	871
a61af66fc99e Initial load duke parents: diff changeset	872 }; // End SymbolHashMapBucket class
a61af66fc99e Initial load duke parents: diff changeset	873
a61af66fc99e Initial load duke parents: diff changeset	874
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	875 class SymbolHashMap: public CHeapObj<mtSymbol> {
0 a61af66fc99e Initial load duke parents: diff changeset	876
a61af66fc99e Initial load duke parents: diff changeset	877 private:
a61af66fc99e Initial load duke parents: diff changeset	878 // Default number of entries in the table
a61af66fc99e Initial load duke parents: diff changeset	879 enum SymbolHashMap_Constants {
a61af66fc99e Initial load duke parents: diff changeset	880 _Def_HashMap_Size = 256
a61af66fc99e Initial load duke parents: diff changeset	881 };
a61af66fc99e Initial load duke parents: diff changeset	882
a61af66fc99e Initial load duke parents: diff changeset	883 int _table_size;
a61af66fc99e Initial load duke parents: diff changeset	884 SymbolHashMapBucket* _buckets;
a61af66fc99e Initial load duke parents: diff changeset	885
a61af66fc99e Initial load duke parents: diff changeset	886 void initialize_table(int table_size) {
a61af66fc99e Initial load duke parents: diff changeset	887 _table_size = table_size;
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 3785 diff changeset	888 _buckets = NEW_C_HEAP_ARRAY(SymbolHashMapBucket, table_size, mtSymbol);
0 a61af66fc99e Initial load duke parents: diff changeset	889 for (int index = 0; index < table_size; index++) {
a61af66fc99e Initial load duke parents: diff changeset	890 _buckets[index].clear();
a61af66fc99e Initial load duke parents: diff changeset	891 }
a61af66fc99e Initial load duke parents: diff changeset	892 }
a61af66fc99e Initial load duke parents: diff changeset	893
a61af66fc99e Initial load duke parents: diff changeset	894 public:
a61af66fc99e Initial load duke parents: diff changeset	895
a61af66fc99e Initial load duke parents: diff changeset	896 int table_size() const { return _table_size; }
a61af66fc99e Initial load duke parents: diff changeset	897
a61af66fc99e Initial load duke parents: diff changeset	898 SymbolHashMap() { initialize_table(_Def_HashMap_Size); }
a61af66fc99e Initial load duke parents: diff changeset	899 SymbolHashMap(int table_size) { initialize_table(table_size); }
a61af66fc99e Initial load duke parents: diff changeset	900
a61af66fc99e Initial load duke parents: diff changeset	901 // hash P(31) from Kernighan & Ritchie
a61af66fc99e Initial load duke parents: diff changeset	902 static unsigned int compute_hash(const char* str, int len) {
a61af66fc99e Initial load duke parents: diff changeset	903 unsigned int hash = 0;
a61af66fc99e Initial load duke parents: diff changeset	904 while (len-- > 0) {
a61af66fc99e Initial load duke parents: diff changeset	905 hash = 31hash + (unsigned) str;
a61af66fc99e Initial load duke parents: diff changeset	906 str++;
a61af66fc99e Initial load duke parents: diff changeset	907 }
a61af66fc99e Initial load duke parents: diff changeset	908 return hash;
a61af66fc99e Initial load duke parents: diff changeset	909 }
a61af66fc99e Initial load duke parents: diff changeset	910
a61af66fc99e Initial load duke parents: diff changeset	911 SymbolHashMapEntry* bucket(int i) {
a61af66fc99e Initial load duke parents: diff changeset	912 return _buckets[i].entry();
a61af66fc99e Initial load duke parents: diff changeset	913 }
a61af66fc99e Initial load duke parents: diff changeset	914
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	915 void add_entry(Symbol* sym, u2 value);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	916 SymbolHashMapEntry* find_entry(Symbol* sym);
0 a61af66fc99e Initial load duke parents: diff changeset	917
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2011 diff changeset	918 u2 symbol_to_value(Symbol* sym) {
0 a61af66fc99e Initial load duke parents: diff changeset	919 SymbolHashMapEntry *entry = find_entry(sym);
a61af66fc99e Initial load duke parents: diff changeset	920 return (entry == NULL) ? 0 : entry->value();
a61af66fc99e Initial load duke parents: diff changeset	921 }
a61af66fc99e Initial load duke parents: diff changeset	922
a61af66fc99e Initial load duke parents: diff changeset	923 ~SymbolHashMap() {
a61af66fc99e Initial load duke parents: diff changeset	924 SymbolHashMapEntry* next;
a61af66fc99e Initial load duke parents: diff changeset	925 for (int i = 0; i < _table_size; i++) {
a61af66fc99e Initial load duke parents: diff changeset	926 for (SymbolHashMapEntry* cur = bucket(i); cur != NULL; cur = next) {
a61af66fc99e Initial load duke parents: diff changeset	927 next = cur->next();
a61af66fc99e Initial load duke parents: diff changeset	928 delete(cur);
a61af66fc99e Initial load duke parents: diff changeset	929 }
a61af66fc99e Initial load duke parents: diff changeset	930 }
a61af66fc99e Initial load duke parents: diff changeset	931 delete _buckets;
a61af66fc99e Initial load duke parents: diff changeset	932 }
a61af66fc99e Initial load duke parents: diff changeset	933 }; // End SymbolHashMap class
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	934
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1913 diff changeset	935 #endif // SHARE_VM_OOPS_CONSTANTPOOLOOP_HPP

Mercurial > hg > truffle

annotate src/share/vm/oops/constantPool.hpp @ 6862:8a5ea0a9ccc4