Mercurial > hg > graal-jvmci-8
annotate src/share/vm/oops/constantPoolOop.cpp @ 2226:c5a923563727
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
Summary: Fix block_size_if_printezis_bits() so it does not expect the bits, only uses them when available. Fix block_size_no_stall() so it does not stall when the bits are missing such cases, letting the caller deal with zero size returns. Constant pool cache oops do not need to be unparsable or conc_unsafe after their klass pointer is installed. Some cosmetic clean-ups and some assertion checking for conc-usafety which, in the presence of class file redefinition, has no a-priori time boundedness, so all GCs must be able to safely deal with putatively conc-unsafe objects in a stop-world pause.
Reviewed-by: jmasa, johnc
author | ysr |
---|---|
date | Mon, 07 Feb 2011 22:19:57 -0800 |
parents | 3582bf76420e |
children | fbbeec6dad2d |
rev | line source |
---|---|
0 | 1 /* |
1579 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1142
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1142
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:
1142
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "classfile/symbolTable.hpp" | |
28 #include "classfile/systemDictionary.hpp" | |
29 #include "classfile/vmSymbols.hpp" | |
30 #include "interpreter/linkResolver.hpp" | |
31 #include "memory/oopFactory.hpp" | |
32 #include "memory/universe.inline.hpp" | |
33 #include "oops/constantPoolOop.hpp" | |
34 #include "oops/instanceKlass.hpp" | |
35 #include "oops/objArrayKlass.hpp" | |
36 #include "oops/oop.inline.hpp" | |
37 #include "runtime/fieldType.hpp" | |
38 #include "runtime/init.hpp" | |
39 #include "runtime/signature.hpp" | |
40 #include "runtime/vframe.hpp" | |
0 | 41 |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
42 void constantPoolOopDesc::set_flag_at(FlagBit fb) { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
43 const int MAX_STATE_CHANGES = 2; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
44 for (int i = MAX_STATE_CHANGES + 10; i > 0; i--) { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
45 int oflags = _flags; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
46 int nflags = oflags | (1 << (int)fb); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
47 if (Atomic::cmpxchg(nflags, &_flags, oflags) == oflags) |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
48 return; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
49 } |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
50 assert(false, "failed to cmpxchg flags"); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
51 _flags |= (1 << (int)fb); // better than nothing |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
52 } |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
53 |
0 | 54 klassOop constantPoolOopDesc::klass_at_impl(constantPoolHandle this_oop, int which, TRAPS) { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
55 // A resolved constantPool entry will contain a klassOop, otherwise a Symbol*. |
0 | 56 // It is not safe to rely on the tag bit's here, since we don't have a lock, and the entry and |
57 // tag is not updated atomicly. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
58 CPSlot entry = this_oop->slot_at(which); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
59 if (entry.is_oop()) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
60 assert(entry.get_oop()->is_klass(), "must be"); |
0 | 61 // Already resolved - return entry. |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
62 return (klassOop)entry.get_oop(); |
0 | 63 } |
64 | |
65 // Acquire lock on constant oop while doing update. After we get the lock, we check if another object | |
66 // already has updated the object | |
67 assert(THREAD->is_Java_thread(), "must be a Java thread"); | |
68 bool do_resolve = false; | |
69 bool in_error = false; | |
70 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
71 Symbol* name = NULL; |
0 | 72 Handle loader; |
73 { ObjectLocker ol(this_oop, THREAD); | |
74 | |
75 if (this_oop->tag_at(which).is_unresolved_klass()) { | |
76 if (this_oop->tag_at(which).is_unresolved_klass_in_error()) { | |
77 in_error = true; | |
78 } else { | |
79 do_resolve = true; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
80 name = this_oop->unresolved_klass_at(which); |
0 | 81 loader = Handle(THREAD, instanceKlass::cast(this_oop->pool_holder())->class_loader()); |
82 } | |
83 } | |
84 } // unlocking constantPool | |
85 | |
86 | |
87 // The original attempt to resolve this constant pool entry failed so find the | |
88 // original error and throw it again (JVMS 5.4.3). | |
89 if (in_error) { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
90 Symbol* error = SystemDictionary::find_resolution_error(this_oop, which); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
91 guarantee(error != (Symbol*)NULL, "tag mismatch with resolution error table"); |
0 | 92 ResourceMark rm; |
93 // exception text will be the class name | |
94 const char* className = this_oop->unresolved_klass_at(which)->as_C_string(); | |
95 THROW_MSG_0(error, className); | |
96 } | |
97 | |
98 if (do_resolve) { | |
99 // this_oop must be unlocked during resolve_or_fail | |
100 oop protection_domain = Klass::cast(this_oop->pool_holder())->protection_domain(); | |
101 Handle h_prot (THREAD, protection_domain); | |
102 klassOop k_oop = SystemDictionary::resolve_or_fail(name, loader, h_prot, true, THREAD); | |
103 KlassHandle k; | |
104 if (!HAS_PENDING_EXCEPTION) { | |
105 k = KlassHandle(THREAD, k_oop); | |
106 // Do access check for klasses | |
107 verify_constant_pool_resolve(this_oop, k, THREAD); | |
108 } | |
109 | |
110 // Failed to resolve class. We must record the errors so that subsequent attempts | |
111 // to resolve this constant pool entry fail with the same error (JVMS 5.4.3). | |
112 if (HAS_PENDING_EXCEPTION) { | |
113 ResourceMark rm; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
114 Symbol* error = PENDING_EXCEPTION->klass()->klass_part()->name(); |
0 | 115 |
116 bool throw_orig_error = false; | |
117 { | |
118 ObjectLocker ol (this_oop, THREAD); | |
119 | |
120 // some other thread has beaten us and has resolved the class. | |
121 if (this_oop->tag_at(which).is_klass()) { | |
122 CLEAR_PENDING_EXCEPTION; | |
123 entry = this_oop->resolved_klass_at(which); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
124 return (klassOop)entry.get_oop(); |
0 | 125 } |
126 | |
127 if (!PENDING_EXCEPTION-> | |
1142 | 128 is_a(SystemDictionary::LinkageError_klass())) { |
0 | 129 // Just throw the exception and don't prevent these classes from |
130 // being loaded due to virtual machine errors like StackOverflow | |
131 // and OutOfMemoryError, etc, or if the thread was hit by stop() | |
132 // Needs clarification to section 5.4.3 of the VM spec (see 6308271) | |
133 } | |
134 else if (!this_oop->tag_at(which).is_unresolved_klass_in_error()) { | |
135 SystemDictionary::add_resolution_error(this_oop, which, error); | |
136 this_oop->tag_at_put(which, JVM_CONSTANT_UnresolvedClassInError); | |
137 } else { | |
138 // some other thread has put the class in error state. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
139 error = SystemDictionary::find_resolution_error(this_oop, which); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
140 assert(error != NULL, "checking"); |
0 | 141 throw_orig_error = true; |
142 } | |
143 } // unlocked | |
144 | |
145 if (throw_orig_error) { | |
146 CLEAR_PENDING_EXCEPTION; | |
147 ResourceMark rm; | |
148 const char* className = this_oop->unresolved_klass_at(which)->as_C_string(); | |
149 THROW_MSG_0(error, className); | |
150 } | |
151 | |
152 return 0; | |
153 } | |
154 | |
155 if (TraceClassResolution && !k()->klass_part()->oop_is_array()) { | |
156 // skip resolving the constant pool so that this code get's | |
157 // called the next time some bytecodes refer to this class. | |
158 ResourceMark rm; | |
159 int line_number = -1; | |
160 const char * source_file = NULL; | |
161 if (JavaThread::current()->has_last_Java_frame()) { | |
162 // try to identify the method which called this function. | |
163 vframeStream vfst(JavaThread::current()); | |
164 if (!vfst.at_end()) { | |
165 line_number = vfst.method()->line_number_from_bci(vfst.bci()); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
166 Symbol* s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name(); |
0 | 167 if (s != NULL) { |
168 source_file = s->as_C_string(); | |
169 } | |
170 } | |
171 } | |
172 if (k() != this_oop->pool_holder()) { | |
173 // only print something if the classes are different | |
174 if (source_file != NULL) { | |
175 tty->print("RESOLVE %s %s %s:%d\n", | |
176 instanceKlass::cast(this_oop->pool_holder())->external_name(), | |
177 instanceKlass::cast(k())->external_name(), source_file, line_number); | |
178 } else { | |
179 tty->print("RESOLVE %s %s\n", | |
180 instanceKlass::cast(this_oop->pool_holder())->external_name(), | |
181 instanceKlass::cast(k())->external_name()); | |
182 } | |
183 } | |
184 return k(); | |
185 } else { | |
186 ObjectLocker ol (this_oop, THREAD); | |
187 // Only updated constant pool - if it is resolved. | |
188 do_resolve = this_oop->tag_at(which).is_unresolved_klass(); | |
189 if (do_resolve) { | |
190 this_oop->klass_at_put(which, k()); | |
191 } | |
192 } | |
193 } | |
194 | |
195 entry = this_oop->resolved_klass_at(which); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
196 assert(entry.is_oop() && entry.get_oop()->is_klass(), "must be resolved at this point"); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
197 return (klassOop)entry.get_oop(); |
0 | 198 } |
199 | |
200 | |
201 // Does not update constantPoolOop - to avoid any exception throwing. Used | |
202 // by compiler and exception handling. Also used to avoid classloads for | |
203 // instanceof operations. Returns NULL if the class has not been loaded or | |
204 // if the verification of constant pool failed | |
205 klassOop constantPoolOopDesc::klass_at_if_loaded(constantPoolHandle this_oop, int which) { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
206 CPSlot entry = this_oop->slot_at(which); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
207 if (entry.is_oop()) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
208 assert(entry.get_oop()->is_klass(), "must be"); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
209 return (klassOop)entry.get_oop(); |
0 | 210 } else { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
211 assert(entry.is_metadata(), "must be either symbol or klass"); |
0 | 212 Thread *thread = Thread::current(); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
213 Symbol* name = entry.get_symbol(); |
0 | 214 oop loader = instanceKlass::cast(this_oop->pool_holder())->class_loader(); |
215 oop protection_domain = Klass::cast(this_oop->pool_holder())->protection_domain(); | |
216 Handle h_prot (thread, protection_domain); | |
217 Handle h_loader (thread, loader); | |
218 klassOop k = SystemDictionary::find(name, h_loader, h_prot, thread); | |
219 | |
220 if (k != NULL) { | |
221 // Make sure that resolving is legal | |
222 EXCEPTION_MARK; | |
223 KlassHandle klass(THREAD, k); | |
224 // return NULL if verification fails | |
225 verify_constant_pool_resolve(this_oop, klass, THREAD); | |
226 if (HAS_PENDING_EXCEPTION) { | |
227 CLEAR_PENDING_EXCEPTION; | |
228 return NULL; | |
229 } | |
230 return klass(); | |
231 } else { | |
232 return k; | |
233 } | |
234 } | |
235 } | |
236 | |
237 | |
238 klassOop constantPoolOopDesc::klass_ref_at_if_loaded(constantPoolHandle this_oop, int which) { | |
239 return klass_at_if_loaded(this_oop, this_oop->klass_ref_index_at(which)); | |
240 } | |
241 | |
242 | |
243 // This is an interface for the compiler that allows accessing non-resolved entries | |
244 // in the constant pool - but still performs the validations tests. Must be used | |
245 // in a pre-parse of the compiler - to determine what it can do and not do. | |
246 // Note: We cannot update the ConstantPool from the vm_thread. | |
247 klassOop constantPoolOopDesc::klass_ref_at_if_loaded_check(constantPoolHandle this_oop, int index, TRAPS) { | |
248 int which = this_oop->klass_ref_index_at(index); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
249 CPSlot entry = this_oop->slot_at(which); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
250 if (entry.is_oop()) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
251 assert(entry.get_oop()->is_klass(), "must be"); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
252 return (klassOop)entry.get_oop(); |
0 | 253 } else { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
254 assert(entry.is_metadata(), "must be either symbol or klass"); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
255 Symbol* name = entry.get_symbol(); |
0 | 256 oop loader = instanceKlass::cast(this_oop->pool_holder())->class_loader(); |
257 oop protection_domain = Klass::cast(this_oop->pool_holder())->protection_domain(); | |
258 Handle h_loader(THREAD, loader); | |
259 Handle h_prot (THREAD, protection_domain); | |
260 KlassHandle k(THREAD, SystemDictionary::find(name, h_loader, h_prot, THREAD)); | |
261 | |
262 // Do access check for klasses | |
263 if( k.not_null() ) verify_constant_pool_resolve(this_oop, k, CHECK_NULL); | |
264 return k(); | |
265 } | |
266 } | |
267 | |
268 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
269 Symbol* constantPoolOopDesc::impl_name_ref_at(int which, bool uncached) { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
270 int name_index = name_ref_index_at(impl_name_and_type_ref_index_at(which, uncached)); |
0 | 271 return symbol_at(name_index); |
272 } | |
273 | |
274 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
275 Symbol* constantPoolOopDesc::impl_signature_ref_at(int which, bool uncached) { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
276 int signature_index = signature_ref_index_at(impl_name_and_type_ref_index_at(which, uncached)); |
0 | 277 return symbol_at(signature_index); |
278 } | |
279 | |
280 | |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
281 int constantPoolOopDesc::impl_name_and_type_ref_index_at(int which, bool uncached) { |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
282 int i = which; |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
283 if (!uncached && cache() != NULL) { |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
284 if (constantPoolCacheOopDesc::is_secondary_index(which)) { |
1910
d1896d1dda3e
6981788: GC map generator sometimes picks up the wrong kind of instruction operand
jrose
parents:
1793
diff
changeset
|
285 // Invokedynamic index. |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
286 int pool_index = cache()->main_entry_at(which)->constant_pool_index(); |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
287 if (!AllowTransitionalJSR292 || tag_at(pool_index).is_invoke_dynamic()) |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
288 pool_index = invoke_dynamic_name_and_type_ref_index_at(pool_index); |
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
289 assert(tag_at(pool_index).is_name_and_type(), ""); |
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
290 return pool_index; |
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
291 } |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
292 // change byte-ordering and go via cache |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
293 i = remap_instruction_operand_from_cache(which); |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
294 } else { |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
295 if (AllowTransitionalJSR292 && tag_at(which).is_name_and_type()) |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
296 // invokedynamic index is a simple name-and-type |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
297 return which; |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
298 if (tag_at(which).is_invoke_dynamic()) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
299 int pool_index = invoke_dynamic_name_and_type_ref_index_at(which); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
300 assert(tag_at(pool_index).is_name_and_type(), ""); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
301 return pool_index; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
302 } |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
303 } |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
304 assert(tag_at(i).is_field_or_method(), "Corrupted constant pool"); |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
305 assert(!tag_at(i).is_invoke_dynamic(), "Must be handled above"); |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
306 jint ref_index = *int_at_addr(i); |
0 | 307 return extract_high_short_from_int(ref_index); |
308 } | |
309 | |
310 | |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
311 int constantPoolOopDesc::impl_klass_ref_index_at(int which, bool uncached) { |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
312 guarantee(!constantPoolCacheOopDesc::is_secondary_index(which), |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
313 "an invokedynamic instruction does not have a klass"); |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
314 int i = which; |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
315 if (!uncached && cache() != NULL) { |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
316 // change byte-ordering and go via cache |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
317 i = remap_instruction_operand_from_cache(which); |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
318 } |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
319 assert(tag_at(i).is_field_or_method(), "Corrupted constant pool"); |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
320 jint ref_index = *int_at_addr(i); |
0 | 321 return extract_low_short_from_int(ref_index); |
322 } | |
323 | |
324 | |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
325 |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
326 int constantPoolOopDesc::remap_instruction_operand_from_cache(int operand) { |
1565 | 327 int cpc_index = operand; |
328 DEBUG_ONLY(cpc_index -= CPCACHE_INDEX_TAG); | |
329 assert((int)(u2)cpc_index == cpc_index, "clean u2"); | |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
330 int member_index = cache()->entry_at(cpc_index)->constant_pool_index(); |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
773
diff
changeset
|
331 return member_index; |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
332 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
333 |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
334 |
0 | 335 void constantPoolOopDesc::verify_constant_pool_resolve(constantPoolHandle this_oop, KlassHandle k, TRAPS) { |
336 if (k->oop_is_instance() || k->oop_is_objArray()) { | |
337 instanceKlassHandle holder (THREAD, this_oop->pool_holder()); | |
338 klassOop elem_oop = k->oop_is_instance() ? k() : objArrayKlass::cast(k())->bottom_klass(); | |
339 KlassHandle element (THREAD, elem_oop); | |
340 | |
341 // The element type could be a typeArray - we only need the access check if it is | |
342 // an reference to another class | |
343 if (element->oop_is_instance()) { | |
344 LinkResolver::check_klass_accessability(holder, element, CHECK); | |
345 } | |
346 } | |
347 } | |
348 | |
349 | |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
350 int constantPoolOopDesc::name_ref_index_at(int which_nt) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
351 jint ref_index = name_and_type_at(which_nt); |
0 | 352 return extract_low_short_from_int(ref_index); |
353 } | |
354 | |
355 | |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
356 int constantPoolOopDesc::signature_ref_index_at(int which_nt) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
579
diff
changeset
|
357 jint ref_index = name_and_type_at(which_nt); |
0 | 358 return extract_high_short_from_int(ref_index); |
359 } | |
360 | |
361 | |
362 klassOop constantPoolOopDesc::klass_ref_at(int which, TRAPS) { | |
363 return klass_at(klass_ref_index_at(which), CHECK_NULL); | |
364 } | |
365 | |
366 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
367 Symbol* constantPoolOopDesc::klass_name_at(int which) { |
0 | 368 assert(tag_at(which).is_unresolved_klass() || tag_at(which).is_klass(), |
369 "Corrupted constant pool"); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
370 // A resolved constantPool entry will contain a klassOop, otherwise a Symbol*. |
0 | 371 // It is not safe to rely on the tag bit's here, since we don't have a lock, and the entry and |
372 // tag is not updated atomicly. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
373 CPSlot entry = slot_at(which); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
374 if (entry.is_oop()) { |
0 | 375 // Already resolved - return entry's name. |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
376 assert(entry.get_oop()->is_klass(), "must be"); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
377 return klassOop(entry.get_oop())->klass_part()->name(); |
0 | 378 } else { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
379 assert(entry.is_metadata(), "must be either symbol or klass"); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
380 return entry.get_symbol(); |
0 | 381 } |
382 } | |
383 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
384 Symbol* constantPoolOopDesc::klass_ref_at_noresolve(int which) { |
0 | 385 jint ref_index = klass_ref_index_at(which); |
386 return klass_at_noresolve(ref_index); | |
387 } | |
388 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
389 Symbol* constantPoolOopDesc::uncached_klass_ref_at_noresolve(int which) { |
1602 | 390 jint ref_index = uncached_klass_ref_index_at(which); |
391 return klass_at_noresolve(ref_index); | |
392 } | |
393 | |
0 | 394 char* constantPoolOopDesc::string_at_noresolve(int which) { |
395 // Test entry type in case string is resolved while in here. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
396 CPSlot entry = slot_at(which); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
397 if (entry.is_metadata()) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
398 return (entry.get_symbol())->as_C_string(); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
399 } else if (java_lang_String::is_instance(entry.get_oop())) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
400 return java_lang_String::as_utf8_string(entry.get_oop()); |
0 | 401 } else { |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
402 return (char*)"<pseudo-string>"; |
0 | 403 } |
404 } | |
405 | |
406 | |
407 BasicType constantPoolOopDesc::basic_type_for_signature_at(int which) { | |
408 return FieldType::basic_type(symbol_at(which)); | |
409 } | |
410 | |
411 | |
412 void constantPoolOopDesc::resolve_string_constants_impl(constantPoolHandle this_oop, TRAPS) { | |
413 for (int index = 1; index < this_oop->length(); index++) { // Index 0 is unused | |
414 if (this_oop->tag_at(index).is_unresolved_string()) { | |
415 this_oop->string_at(index, CHECK); | |
416 } | |
417 } | |
418 } | |
419 | |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
420 // A resolved constant value in the CP cache is represented as a non-null |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
421 // value. As a special case, this value can be a 'systemObjArray' |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
422 // which masks an exception object to throw. |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
423 // This allows a MethodHandle constant reference to throw a consistent |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
424 // exception every time, if it fails to resolve. |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
425 static oop decode_exception_from_f1(oop result_oop, TRAPS) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
426 if (result_oop->klass() != Universe::systemObjArrayKlassObj()) |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
427 return result_oop; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
428 |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
429 // Special cases here: Masked null, saved exception. |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
430 objArrayOop sys_array = (objArrayOop) result_oop; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
431 assert(sys_array->length() == 1, "bad system array"); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
432 if (sys_array->length() == 1) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
433 THROW_OOP_(sys_array->obj_at(0), NULL); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
434 } |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
435 return NULL; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
436 } |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
437 |
1602 | 438 oop constantPoolOopDesc::resolve_constant_at_impl(constantPoolHandle this_oop, int index, int cache_index, TRAPS) { |
439 oop result_oop = NULL; | |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
440 Handle throw_exception; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
441 |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
442 if (cache_index == _possible_index_sentinel) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
443 // It is possible that this constant is one which is cached in the CP cache. |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
444 // We'll do a linear search. This should be OK because this usage is rare. |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
445 assert(index > 0, "valid index"); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
446 constantPoolCacheOop cache = this_oop()->cache(); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
447 for (int i = 0, len = cache->length(); i < len; i++) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
448 ConstantPoolCacheEntry* cpc_entry = cache->entry_at(i); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
449 if (!cpc_entry->is_secondary_entry() && cpc_entry->constant_pool_index() == index) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
450 // Switch the query to use this CPC entry. |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
451 cache_index = i; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
452 index = _no_index_sentinel; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
453 break; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
454 } |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
455 } |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
456 if (cache_index == _possible_index_sentinel) |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
457 cache_index = _no_index_sentinel; // not found |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
458 } |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
459 assert(cache_index == _no_index_sentinel || cache_index >= 0, ""); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
460 assert(index == _no_index_sentinel || index >= 0, ""); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
461 |
1602 | 462 if (cache_index >= 0) { |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
463 assert(index == _no_index_sentinel, "only one kind of index at a time"); |
1602 | 464 ConstantPoolCacheEntry* cpc_entry = this_oop->cache()->entry_at(cache_index); |
465 result_oop = cpc_entry->f1(); | |
466 if (result_oop != NULL) { | |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
467 return decode_exception_from_f1(result_oop, THREAD); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
468 // That was easy... |
1602 | 469 } |
470 index = cpc_entry->constant_pool_index(); | |
471 } | |
472 | |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
473 jvalue prim_value; // temp used only in a few cases below |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
474 |
1602 | 475 int tag_value = this_oop->tag_at(index).value(); |
476 switch (tag_value) { | |
477 | |
478 case JVM_CONSTANT_UnresolvedClass: | |
479 case JVM_CONSTANT_UnresolvedClassInError: | |
480 case JVM_CONSTANT_Class: | |
481 { | |
482 klassOop resolved = klass_at_impl(this_oop, index, CHECK_NULL); | |
483 // ldc wants the java mirror. | |
484 result_oop = resolved->klass_part()->java_mirror(); | |
485 break; | |
486 } | |
487 | |
488 case JVM_CONSTANT_String: | |
489 case JVM_CONSTANT_UnresolvedString: | |
490 if (this_oop->is_pseudo_string_at(index)) { | |
491 result_oop = this_oop->pseudo_string_at(index); | |
492 break; | |
493 } | |
494 result_oop = string_at_impl(this_oop, index, CHECK_NULL); | |
495 break; | |
496 | |
497 case JVM_CONSTANT_Object: | |
498 result_oop = this_oop->object_at(index); | |
499 break; | |
500 | |
501 case JVM_CONSTANT_MethodHandle: | |
502 { | |
503 int ref_kind = this_oop->method_handle_ref_kind_at(index); | |
504 int callee_index = this_oop->method_handle_klass_index_at(index); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
505 Symbol* name = this_oop->method_handle_name_ref_at(index); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
506 Symbol* signature = this_oop->method_handle_signature_ref_at(index); |
1602 | 507 if (PrintMiscellaneous) |
508 tty->print_cr("resolve JVM_CONSTANT_MethodHandle:%d [%d/%d/%d] %s.%s", | |
509 ref_kind, index, this_oop->method_handle_index_at(index), | |
510 callee_index, name->as_C_string(), signature->as_C_string()); | |
511 KlassHandle callee; | |
512 { klassOop k = klass_at_impl(this_oop, callee_index, CHECK_NULL); | |
513 callee = KlassHandle(THREAD, k); | |
514 } | |
515 KlassHandle klass(THREAD, this_oop->pool_holder()); | |
516 Handle value = SystemDictionary::link_method_handle_constant(klass, ref_kind, | |
517 callee, name, signature, | |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
518 THREAD); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
519 if (HAS_PENDING_EXCEPTION) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
520 throw_exception = Handle(THREAD, PENDING_EXCEPTION); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
521 CLEAR_PENDING_EXCEPTION; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
522 break; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
523 } |
1602 | 524 result_oop = value(); |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
525 assert(result_oop != NULL, ""); |
1602 | 526 break; |
527 } | |
528 | |
529 case JVM_CONSTANT_MethodType: | |
530 { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
531 Symbol* signature = this_oop->method_type_signature_at(index); |
1602 | 532 if (PrintMiscellaneous) |
533 tty->print_cr("resolve JVM_CONSTANT_MethodType [%d/%d] %s", | |
534 index, this_oop->method_type_index_at(index), | |
535 signature->as_C_string()); | |
536 KlassHandle klass(THREAD, this_oop->pool_holder()); | |
537 bool ignore_is_on_bcp = false; | |
538 Handle value = SystemDictionary::find_method_handle_type(signature, | |
539 klass, | |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1660
diff
changeset
|
540 false, |
1602 | 541 ignore_is_on_bcp, |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
542 THREAD); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
543 if (HAS_PENDING_EXCEPTION) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
544 throw_exception = Handle(THREAD, PENDING_EXCEPTION); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
545 CLEAR_PENDING_EXCEPTION; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
546 break; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
547 } |
1602 | 548 result_oop = value(); |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
549 assert(result_oop != NULL, ""); |
1602 | 550 break; |
551 } | |
552 | |
553 case JVM_CONSTANT_Integer: | |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
554 prim_value.i = this_oop->int_at(index); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
555 result_oop = java_lang_boxing_object::create(T_INT, &prim_value, CHECK_NULL); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
556 break; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
557 |
1602 | 558 case JVM_CONSTANT_Float: |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
559 prim_value.f = this_oop->float_at(index); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
560 result_oop = java_lang_boxing_object::create(T_FLOAT, &prim_value, CHECK_NULL); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
561 break; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
562 |
1602 | 563 case JVM_CONSTANT_Long: |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
564 prim_value.j = this_oop->long_at(index); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
565 result_oop = java_lang_boxing_object::create(T_LONG, &prim_value, CHECK_NULL); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
566 break; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
567 |
1602 | 568 case JVM_CONSTANT_Double: |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
569 prim_value.d = this_oop->double_at(index); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
570 result_oop = java_lang_boxing_object::create(T_DOUBLE, &prim_value, CHECK_NULL); |
1602 | 571 break; |
572 | |
573 default: | |
574 DEBUG_ONLY( tty->print_cr("*** %p: tag at CP[%d/%d] = %d", | |
575 this_oop(), index, cache_index, tag_value) ); | |
576 assert(false, "unexpected constant tag"); | |
577 break; | |
578 } | |
579 | |
580 if (cache_index >= 0) { | |
581 // Cache the oop here also. | |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
582 if (throw_exception.not_null()) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
583 objArrayOop sys_array = oopFactory::new_system_objArray(1, CHECK_NULL); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
584 sys_array->obj_at_put(0, throw_exception()); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
585 result_oop = sys_array; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
586 throw_exception = Handle(); // be tidy |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
587 } |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
588 Handle result_handle(THREAD, result_oop); |
1602 | 589 result_oop = NULL; // safety |
590 ObjectLocker ol(this_oop, THREAD); | |
591 ConstantPoolCacheEntry* cpc_entry = this_oop->cache()->entry_at(cache_index); | |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
592 result_oop = cpc_entry->f1(); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
593 // Benign race condition: f1 may already be filled in while we were trying to lock. |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
594 // The important thing here is that all threads pick up the same result. |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
595 // It doesn't matter which racing thread wins, as long as only one |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
596 // result is used by all threads, and all future queries. |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
597 // That result may be either a resolved constant or a failure exception. |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
598 if (result_oop == NULL) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
599 result_oop = result_handle(); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
600 cpc_entry->set_f1(result_oop); |
1602 | 601 } |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
602 return decode_exception_from_f1(result_oop, THREAD); |
1602 | 603 } else { |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
604 if (throw_exception.not_null()) { |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
605 THROW_HANDLE_(throw_exception, NULL); |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
606 } |
1602 | 607 return result_oop; |
608 } | |
609 } | |
610 | |
0 | 611 oop constantPoolOopDesc::string_at_impl(constantPoolHandle this_oop, int which, TRAPS) { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
612 oop str = NULL; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
613 CPSlot entry = this_oop->slot_at(which); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
614 if (entry.is_metadata()) { |
0 | 615 ObjectLocker ol(this_oop, THREAD); |
616 if (this_oop->tag_at(which).is_unresolved_string()) { | |
617 // Intern string | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
618 Symbol* sym = this_oop->unresolved_string_at(which); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
619 str = StringTable::intern(sym, CHECK_(constantPoolOop(NULL))); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
620 this_oop->string_at_put(which, str); |
0 | 621 } else { |
622 // Another thread beat us and interned string, read string from constant pool | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
623 str = this_oop->resolved_string_at(which); |
0 | 624 } |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
625 } else { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
626 str = entry.get_oop(); |
0 | 627 } |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
628 assert(java_lang_String::is_instance(str), "must be string"); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
629 return str; |
0 | 630 } |
631 | |
632 | |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
633 bool constantPoolOopDesc::is_pseudo_string_at(int which) { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
634 CPSlot entry = slot_at(which); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
635 if (entry.is_metadata()) |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
636 // Not yet resolved, but it will resolve to a string. |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
637 return false; |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
638 else if (java_lang_String::is_instance(entry.get_oop())) |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
639 return false; // actually, it might be a non-interned or non-perm string |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
640 else |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
641 // truly pseudo |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
642 return true; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
643 } |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
644 |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
645 |
0 | 646 bool constantPoolOopDesc::klass_name_at_matches(instanceKlassHandle k, |
647 int which) { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
648 // Names are interned, so we can compare Symbol*s directly |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
649 Symbol* cp_name = klass_name_at(which); |
0 | 650 return (cp_name == k->name()); |
651 } | |
652 | |
653 | |
654 int constantPoolOopDesc::pre_resolve_shared_klasses(TRAPS) { | |
655 ResourceMark rm; | |
656 int count = 0; | |
657 for (int index = 1; index < tags()->length(); index++) { // Index 0 is unused | |
658 if (tag_at(index).is_unresolved_string()) { | |
659 // Intern string | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
660 Symbol* sym = unresolved_string_at(index); |
0 | 661 oop entry = StringTable::intern(sym, CHECK_(-1)); |
662 string_at_put(index, entry); | |
663 } | |
664 } | |
665 return count; | |
666 } | |
667 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
668 // Iterate over symbols and decrement ones which are Symbol*s. |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
669 // This is done during GC so do not need to lock constantPool unless we |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
670 // have per-thread safepoints. |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
671 // Only decrement the UTF8 symbols. Unresolved classes and strings point to |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
672 // these symbols but didn't increment the reference count. |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
673 void constantPoolOopDesc::unreference_symbols() { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
674 for (int index = 1; index < length(); index++) { // Index 0 is unused |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
675 constantTag tag = tag_at(index); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
676 if (tag.is_symbol()) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
677 symbol_at(index)->decrement_refcount(); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
678 } |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
679 } |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
680 } |
0 | 681 |
682 // Iterate over symbols which are used as class, field, method names and | |
683 // signatures (in preparation for writing to the shared archive). | |
684 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
685 void constantPoolOopDesc::shared_symbols_iterate(SymbolClosure* closure) { |
0 | 686 for (int index = 1; index < length(); index++) { // Index 0 is unused |
687 switch (tag_at(index).value()) { | |
688 | |
689 case JVM_CONSTANT_UnresolvedClass: | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
690 case JVM_CONSTANT_UnresolvedString: |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
691 case JVM_CONSTANT_Utf8: |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
692 assert(slot_at(index).is_metadata(), "must be symbol"); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
693 closure->do_symbol(symbol_at_addr(index)); |
0 | 694 break; |
695 | |
696 case JVM_CONSTANT_NameAndType: | |
697 { | |
698 int i = *int_at_addr(index); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
699 closure->do_symbol(symbol_at_addr((unsigned)i >> 16)); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
700 closure->do_symbol(symbol_at_addr((unsigned)i & 0xffff)); |
0 | 701 } |
702 break; | |
703 | |
704 case JVM_CONSTANT_Class: | |
705 case JVM_CONSTANT_InterfaceMethodref: | |
706 case JVM_CONSTANT_Fieldref: | |
707 case JVM_CONSTANT_Methodref: | |
708 case JVM_CONSTANT_Integer: | |
709 case JVM_CONSTANT_Float: | |
710 // Do nothing! Not an oop. | |
711 // These constant types do not reference symbols at this point. | |
712 break; | |
713 | |
714 case JVM_CONSTANT_String: | |
715 // Do nothing! Not a symbol. | |
716 break; | |
717 | |
718 case JVM_CONSTANT_Long: | |
719 case JVM_CONSTANT_Double: | |
720 // Do nothing! Not an oop. (But takes two pool entries.) | |
721 ++index; | |
722 break; | |
723 | |
724 default: | |
725 ShouldNotReachHere(); | |
726 break; | |
727 } | |
728 } | |
729 } | |
730 | |
731 | |
732 // Iterate over the [one] tags array (in preparation for writing to the | |
733 // shared archive). | |
734 | |
735 void constantPoolOopDesc::shared_tags_iterate(OopClosure* closure) { | |
736 closure->do_oop(tags_addr()); | |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
737 closure->do_oop(operands_addr()); |
0 | 738 } |
739 | |
740 | |
741 // Iterate over String objects (in preparation for writing to the shared | |
742 // archive). | |
743 | |
744 void constantPoolOopDesc::shared_strings_iterate(OopClosure* closure) { | |
745 for (int index = 1; index < length(); index++) { // Index 0 is unused | |
746 switch (tag_at(index).value()) { | |
747 | |
748 case JVM_CONSTANT_UnresolvedClass: | |
749 case JVM_CONSTANT_NameAndType: | |
750 // Do nothing! Not a String. | |
751 break; | |
752 | |
753 case JVM_CONSTANT_Class: | |
754 case JVM_CONSTANT_InterfaceMethodref: | |
755 case JVM_CONSTANT_Fieldref: | |
756 case JVM_CONSTANT_Methodref: | |
757 case JVM_CONSTANT_Integer: | |
758 case JVM_CONSTANT_Float: | |
759 // Do nothing! Not an oop. | |
760 // These constant types do not reference symbols at this point. | |
761 break; | |
762 | |
763 case JVM_CONSTANT_String: | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
764 closure->do_oop(obj_at_addr_raw(index)); |
0 | 765 break; |
766 | |
767 case JVM_CONSTANT_UnresolvedString: | |
768 case JVM_CONSTANT_Utf8: | |
769 // These constants are symbols, but unless these symbols are | |
770 // actually to be used for something, we don't want to mark them. | |
771 break; | |
772 | |
773 case JVM_CONSTANT_Long: | |
774 case JVM_CONSTANT_Double: | |
775 // Do nothing! Not an oop. (But takes two pool entries.) | |
776 ++index; | |
777 break; | |
778 | |
779 default: | |
780 ShouldNotReachHere(); | |
781 break; | |
782 } | |
783 } | |
784 } | |
785 | |
786 | |
787 // Compare this constant pool's entry at index1 to the constant pool | |
788 // cp2's entry at index2. | |
789 bool constantPoolOopDesc::compare_entry_to(int index1, constantPoolHandle cp2, | |
790 int index2, TRAPS) { | |
791 | |
792 jbyte t1 = tag_at(index1).value(); | |
793 jbyte t2 = cp2->tag_at(index2).value(); | |
794 | |
795 | |
796 // JVM_CONSTANT_UnresolvedClassInError is equal to JVM_CONSTANT_UnresolvedClass | |
797 // when comparing | |
798 if (t1 == JVM_CONSTANT_UnresolvedClassInError) { | |
799 t1 = JVM_CONSTANT_UnresolvedClass; | |
800 } | |
801 if (t2 == JVM_CONSTANT_UnresolvedClassInError) { | |
802 t2 = JVM_CONSTANT_UnresolvedClass; | |
803 } | |
804 | |
805 if (t1 != t2) { | |
806 // Not the same entry type so there is nothing else to check. Note | |
807 // that this style of checking will consider resolved/unresolved | |
808 // class pairs and resolved/unresolved string pairs as different. | |
809 // From the constantPoolOop API point of view, this is correct | |
810 // behavior. See constantPoolKlass::merge() to see how this plays | |
811 // out in the context of constantPoolOop merging. | |
812 return false; | |
813 } | |
814 | |
815 switch (t1) { | |
816 case JVM_CONSTANT_Class: | |
817 { | |
818 klassOop k1 = klass_at(index1, CHECK_false); | |
819 klassOop k2 = cp2->klass_at(index2, CHECK_false); | |
820 if (k1 == k2) { | |
821 return true; | |
822 } | |
823 } break; | |
824 | |
825 case JVM_CONSTANT_ClassIndex: | |
826 { | |
827 int recur1 = klass_index_at(index1); | |
828 int recur2 = cp2->klass_index_at(index2); | |
829 bool match = compare_entry_to(recur1, cp2, recur2, CHECK_false); | |
830 if (match) { | |
831 return true; | |
832 } | |
833 } break; | |
834 | |
835 case JVM_CONSTANT_Double: | |
836 { | |
837 jdouble d1 = double_at(index1); | |
838 jdouble d2 = cp2->double_at(index2); | |
839 if (d1 == d2) { | |
840 return true; | |
841 } | |
842 } break; | |
843 | |
844 case JVM_CONSTANT_Fieldref: | |
845 case JVM_CONSTANT_InterfaceMethodref: | |
846 case JVM_CONSTANT_Methodref: | |
847 { | |
848 int recur1 = uncached_klass_ref_index_at(index1); | |
849 int recur2 = cp2->uncached_klass_ref_index_at(index2); | |
850 bool match = compare_entry_to(recur1, cp2, recur2, CHECK_false); | |
851 if (match) { | |
852 recur1 = uncached_name_and_type_ref_index_at(index1); | |
853 recur2 = cp2->uncached_name_and_type_ref_index_at(index2); | |
854 match = compare_entry_to(recur1, cp2, recur2, CHECK_false); | |
855 if (match) { | |
856 return true; | |
857 } | |
858 } | |
859 } break; | |
860 | |
861 case JVM_CONSTANT_Float: | |
862 { | |
863 jfloat f1 = float_at(index1); | |
864 jfloat f2 = cp2->float_at(index2); | |
865 if (f1 == f2) { | |
866 return true; | |
867 } | |
868 } break; | |
869 | |
870 case JVM_CONSTANT_Integer: | |
871 { | |
872 jint i1 = int_at(index1); | |
873 jint i2 = cp2->int_at(index2); | |
874 if (i1 == i2) { | |
875 return true; | |
876 } | |
877 } break; | |
878 | |
879 case JVM_CONSTANT_Long: | |
880 { | |
881 jlong l1 = long_at(index1); | |
882 jlong l2 = cp2->long_at(index2); | |
883 if (l1 == l2) { | |
884 return true; | |
885 } | |
886 } break; | |
887 | |
888 case JVM_CONSTANT_NameAndType: | |
889 { | |
890 int recur1 = name_ref_index_at(index1); | |
891 int recur2 = cp2->name_ref_index_at(index2); | |
892 bool match = compare_entry_to(recur1, cp2, recur2, CHECK_false); | |
893 if (match) { | |
894 recur1 = signature_ref_index_at(index1); | |
895 recur2 = cp2->signature_ref_index_at(index2); | |
896 match = compare_entry_to(recur1, cp2, recur2, CHECK_false); | |
897 if (match) { | |
898 return true; | |
899 } | |
900 } | |
901 } break; | |
902 | |
903 case JVM_CONSTANT_String: | |
904 { | |
905 oop s1 = string_at(index1, CHECK_false); | |
906 oop s2 = cp2->string_at(index2, CHECK_false); | |
907 if (s1 == s2) { | |
908 return true; | |
909 } | |
910 } break; | |
911 | |
912 case JVM_CONSTANT_StringIndex: | |
913 { | |
914 int recur1 = string_index_at(index1); | |
915 int recur2 = cp2->string_index_at(index2); | |
916 bool match = compare_entry_to(recur1, cp2, recur2, CHECK_false); | |
917 if (match) { | |
918 return true; | |
919 } | |
920 } break; | |
921 | |
922 case JVM_CONSTANT_UnresolvedClass: | |
923 { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
924 Symbol* k1 = unresolved_klass_at(index1); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
925 Symbol* k2 = cp2->unresolved_klass_at(index2); |
0 | 926 if (k1 == k2) { |
927 return true; | |
928 } | |
929 } break; | |
930 | |
1602 | 931 case JVM_CONSTANT_MethodType: |
932 { | |
933 int k1 = method_type_index_at(index1); | |
934 int k2 = cp2->method_type_index_at(index2); | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
935 bool match = compare_entry_to(k1, cp2, k2, CHECK_false); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
936 if (match) { |
1602 | 937 return true; |
938 } | |
939 } break; | |
940 | |
941 case JVM_CONSTANT_MethodHandle: | |
942 { | |
943 int k1 = method_handle_ref_kind_at(index1); | |
944 int k2 = cp2->method_handle_ref_kind_at(index2); | |
945 if (k1 == k2) { | |
946 int i1 = method_handle_index_at(index1); | |
947 int i2 = cp2->method_handle_index_at(index2); | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
948 bool match = compare_entry_to(i1, cp2, i2, CHECK_false); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
949 if (match) { |
1602 | 950 return true; |
951 } | |
952 } | |
953 } break; | |
954 | |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
955 case 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
|
956 case JVM_CONSTANT_InvokeDynamicTrans: |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
957 { |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
958 int k1 = invoke_dynamic_bootstrap_method_ref_index_at(index1); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
959 int k2 = cp2->invoke_dynamic_bootstrap_method_ref_index_at(index2); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
960 bool match = compare_entry_to(k1, cp2, k2, CHECK_false); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
961 if (!match) return false; |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
962 k1 = invoke_dynamic_name_and_type_ref_index_at(index1); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
963 k2 = cp2->invoke_dynamic_name_and_type_ref_index_at(index2); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
964 match = compare_entry_to(k1, cp2, k2, CHECK_false); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
965 if (!match) return false; |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
966 int argc = invoke_dynamic_argument_count_at(index1); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
967 if (argc == cp2->invoke_dynamic_argument_count_at(index2)) { |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
968 for (int j = 0; j < argc; j++) { |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
969 k1 = invoke_dynamic_argument_index_at(index1, j); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
970 k2 = cp2->invoke_dynamic_argument_index_at(index2, j); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
971 match = compare_entry_to(k1, cp2, k2, CHECK_false); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
972 if (!match) return false; |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
973 } |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
974 return true; // got through loop; all elements equal |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
975 } |
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
976 } break; |
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
977 |
0 | 978 case JVM_CONSTANT_UnresolvedString: |
979 { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
980 Symbol* s1 = unresolved_string_at(index1); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
981 Symbol* s2 = cp2->unresolved_string_at(index2); |
0 | 982 if (s1 == s2) { |
983 return true; | |
984 } | |
985 } break; | |
986 | |
987 case JVM_CONSTANT_Utf8: | |
988 { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
989 Symbol* s1 = symbol_at(index1); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
990 Symbol* s2 = cp2->symbol_at(index2); |
0 | 991 if (s1 == s2) { |
992 return true; | |
993 } | |
994 } break; | |
995 | |
996 // Invalid is used as the tag for the second constant pool entry | |
997 // occupied by JVM_CONSTANT_Double or JVM_CONSTANT_Long. It should | |
998 // not be seen by itself. | |
999 case JVM_CONSTANT_Invalid: // fall through | |
1000 | |
1001 default: | |
1002 ShouldNotReachHere(); | |
1003 break; | |
1004 } | |
1005 | |
1006 return false; | |
1007 } // end compare_entry_to() | |
1008 | |
1009 | |
1010 // Copy this constant pool's entries at start_i to end_i (inclusive) | |
1011 // to the constant pool to_cp's entries starting at to_i. A total of | |
1012 // (end_i - start_i) + 1 entries are copied. | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1013 void constantPoolOopDesc::copy_cp_to_impl(constantPoolHandle from_cp, int start_i, int end_i, |
0 | 1014 constantPoolHandle to_cp, int to_i, TRAPS) { |
1015 | |
1016 int dest_i = to_i; // leave original alone for debug purposes | |
1017 | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1018 for (int src_i = start_i; src_i <= end_i; /* see loop bottom */ ) { |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1019 copy_entry_to(from_cp, src_i, to_cp, dest_i, CHECK); |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
1020 |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1021 switch (from_cp->tag_at(src_i).value()) { |
0 | 1022 case JVM_CONSTANT_Double: |
1023 case JVM_CONSTANT_Long: | |
1024 // double and long take two constant pool entries | |
1025 src_i += 2; | |
1026 dest_i += 2; | |
1027 break; | |
1028 | |
1029 default: | |
1030 // all others take one constant pool entry | |
1031 src_i++; | |
1032 dest_i++; | |
1033 break; | |
1034 } | |
1035 } | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1036 |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1037 int from_oplen = operand_array_length(from_cp->operands()); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1038 int old_oplen = operand_array_length(to_cp->operands()); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1039 if (from_oplen != 0) { |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1040 // append my operands to the target's operands array |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1041 if (old_oplen == 0) { |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1042 to_cp->set_operands(from_cp->operands()); // reuse; do not merge |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1043 } else { |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1044 int old_len = to_cp->operands()->length(); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1045 int from_len = from_cp->operands()->length(); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1046 int old_off = old_oplen * sizeof(u2); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1047 int from_off = from_oplen * sizeof(u2); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1048 typeArrayHandle new_operands = oopFactory::new_permanent_shortArray(old_len + from_len, CHECK); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1049 int fillp = 0, len = 0; |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1050 // first part of dest |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1051 Copy::conjoint_memory_atomic(to_cp->operands()->short_at_addr(0), |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1052 new_operands->short_at_addr(fillp), |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1053 (len = old_off) * sizeof(u2)); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1054 fillp += len; |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1055 // first part of src |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1056 Copy::conjoint_memory_atomic(to_cp->operands()->short_at_addr(0), |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1057 new_operands->short_at_addr(fillp), |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1058 (len = from_off) * sizeof(u2)); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1059 fillp += len; |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1060 // second part of dest |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1061 Copy::conjoint_memory_atomic(to_cp->operands()->short_at_addr(old_off), |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1062 new_operands->short_at_addr(fillp), |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1063 (len = old_len - old_off) * sizeof(u2)); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1064 fillp += len; |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1065 // second part of src |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1066 Copy::conjoint_memory_atomic(to_cp->operands()->short_at_addr(from_off), |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1067 new_operands->short_at_addr(fillp), |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1068 (len = from_len - from_off) * sizeof(u2)); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1069 fillp += len; |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1070 assert(fillp == new_operands->length(), ""); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1071 |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1072 // Adjust indexes in the first part of the copied operands array. |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1073 for (int j = 0; j < from_oplen; j++) { |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1074 int offset = operand_offset_at(new_operands(), old_oplen + j); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1075 assert(offset == operand_offset_at(from_cp->operands(), j), "correct copy"); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1076 offset += old_len; // every new tuple is preceded by old_len extra u2's |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1077 operand_offset_at_put(new_operands(), old_oplen + j, offset); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1078 } |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1079 |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1080 // replace target operands array with combined array |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1081 to_cp->set_operands(new_operands()); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1082 } |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1083 } |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1084 |
0 | 1085 } // end copy_cp_to() |
1086 | |
1087 | |
1088 // Copy this constant pool's entry at from_i to the constant pool | |
1089 // to_cp's entry at to_i. | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1090 void constantPoolOopDesc::copy_entry_to(constantPoolHandle from_cp, int from_i, |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1091 constantPoolHandle to_cp, int to_i, |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1092 TRAPS) { |
0 | 1093 |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1094 int tag = from_cp->tag_at(from_i).value(); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1095 switch (tag) { |
0 | 1096 case JVM_CONSTANT_Class: |
1097 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1098 klassOop k = from_cp->klass_at(from_i, CHECK); |
0 | 1099 to_cp->klass_at_put(to_i, k); |
1100 } break; | |
1101 | |
1102 case JVM_CONSTANT_ClassIndex: | |
1103 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1104 jint ki = from_cp->klass_index_at(from_i); |
0 | 1105 to_cp->klass_index_at_put(to_i, ki); |
1106 } break; | |
1107 | |
1108 case JVM_CONSTANT_Double: | |
1109 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1110 jdouble d = from_cp->double_at(from_i); |
0 | 1111 to_cp->double_at_put(to_i, d); |
1112 // double takes two constant pool entries so init second entry's tag | |
1113 to_cp->tag_at_put(to_i + 1, JVM_CONSTANT_Invalid); | |
1114 } break; | |
1115 | |
1116 case JVM_CONSTANT_Fieldref: | |
1117 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1118 int class_index = from_cp->uncached_klass_ref_index_at(from_i); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1119 int name_and_type_index = from_cp->uncached_name_and_type_ref_index_at(from_i); |
0 | 1120 to_cp->field_at_put(to_i, class_index, name_and_type_index); |
1121 } break; | |
1122 | |
1123 case JVM_CONSTANT_Float: | |
1124 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1125 jfloat f = from_cp->float_at(from_i); |
0 | 1126 to_cp->float_at_put(to_i, f); |
1127 } break; | |
1128 | |
1129 case JVM_CONSTANT_Integer: | |
1130 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1131 jint i = from_cp->int_at(from_i); |
0 | 1132 to_cp->int_at_put(to_i, i); |
1133 } break; | |
1134 | |
1135 case JVM_CONSTANT_InterfaceMethodref: | |
1136 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1137 int class_index = from_cp->uncached_klass_ref_index_at(from_i); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1138 int name_and_type_index = from_cp->uncached_name_and_type_ref_index_at(from_i); |
0 | 1139 to_cp->interface_method_at_put(to_i, class_index, name_and_type_index); |
1140 } break; | |
1141 | |
1142 case JVM_CONSTANT_Long: | |
1143 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1144 jlong l = from_cp->long_at(from_i); |
0 | 1145 to_cp->long_at_put(to_i, l); |
1146 // long takes two constant pool entries so init second entry's tag | |
1147 to_cp->tag_at_put(to_i + 1, JVM_CONSTANT_Invalid); | |
1148 } break; | |
1149 | |
1150 case JVM_CONSTANT_Methodref: | |
1151 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1152 int class_index = from_cp->uncached_klass_ref_index_at(from_i); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1153 int name_and_type_index = from_cp->uncached_name_and_type_ref_index_at(from_i); |
0 | 1154 to_cp->method_at_put(to_i, class_index, name_and_type_index); |
1155 } break; | |
1156 | |
1157 case JVM_CONSTANT_NameAndType: | |
1158 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1159 int name_ref_index = from_cp->name_ref_index_at(from_i); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1160 int signature_ref_index = from_cp->signature_ref_index_at(from_i); |
0 | 1161 to_cp->name_and_type_at_put(to_i, name_ref_index, signature_ref_index); |
1162 } break; | |
1163 | |
1164 case JVM_CONSTANT_String: | |
1165 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1166 oop s = from_cp->string_at(from_i, CHECK); |
0 | 1167 to_cp->string_at_put(to_i, s); |
1168 } break; | |
1169 | |
1170 case JVM_CONSTANT_StringIndex: | |
1171 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1172 jint si = from_cp->string_index_at(from_i); |
0 | 1173 to_cp->string_index_at_put(to_i, si); |
1174 } break; | |
1175 | |
1176 case JVM_CONSTANT_UnresolvedClass: | |
1177 { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1178 Symbol* k = from_cp->unresolved_klass_at(from_i); |
0 | 1179 to_cp->unresolved_klass_at_put(to_i, k); |
1180 } break; | |
1181 | |
1182 case JVM_CONSTANT_UnresolvedClassInError: | |
1183 { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1184 Symbol* k = from_cp->unresolved_klass_at(from_i); |
0 | 1185 to_cp->unresolved_klass_at_put(to_i, k); |
1186 to_cp->tag_at_put(to_i, JVM_CONSTANT_UnresolvedClassInError); | |
1187 } break; | |
1188 | |
1189 | |
1190 case JVM_CONSTANT_UnresolvedString: | |
1191 { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1192 Symbol* s = from_cp->unresolved_string_at(from_i); |
0 | 1193 to_cp->unresolved_string_at_put(to_i, s); |
1194 } break; | |
1195 | |
1196 case JVM_CONSTANT_Utf8: | |
1197 { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1198 Symbol* s = from_cp->symbol_at(from_i); |
0 | 1199 to_cp->symbol_at_put(to_i, s); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1200 // This constantPool has the same lifetime as the original, so don't |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1201 // increase reference counts for the copy. |
0 | 1202 } break; |
1203 | |
1602 | 1204 case JVM_CONSTANT_MethodType: |
1205 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1206 jint k = from_cp->method_type_index_at(from_i); |
1602 | 1207 to_cp->method_type_index_at_put(to_i, k); |
1208 } break; | |
1209 | |
1210 case JVM_CONSTANT_MethodHandle: | |
1211 { | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1212 int k1 = from_cp->method_handle_ref_kind_at(from_i); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1213 int k2 = from_cp->method_handle_index_at(from_i); |
1602 | 1214 to_cp->method_handle_index_at_put(to_i, k1, k2); |
1215 } break; | |
1216 | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1217 case JVM_CONSTANT_InvokeDynamicTrans: |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1218 { |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1219 int k1 = from_cp->invoke_dynamic_bootstrap_method_ref_index_at(from_i); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1220 int k2 = from_cp->invoke_dynamic_name_and_type_ref_index_at(from_i); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1221 to_cp->invoke_dynamic_trans_at_put(to_i, k1, k2); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1222 } break; |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1223 |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
1224 case JVM_CONSTANT_InvokeDynamic: |
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
1225 { |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1226 int k1 = from_cp->invoke_dynamic_bootstrap_specifier_index(from_i); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1227 int k2 = from_cp->invoke_dynamic_name_and_type_ref_index_at(from_i); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1228 k1 += operand_array_length(to_cp->operands()); // to_cp might already have operands |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1229 to_cp->invoke_dynamic_at_put(to_i, k1, k2); |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
1230 } break; |
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
1231 |
0 | 1232 // Invalid is used as the tag for the second constant pool entry |
1233 // occupied by JVM_CONSTANT_Double or JVM_CONSTANT_Long. It should | |
1234 // not be seen by itself. | |
1235 case JVM_CONSTANT_Invalid: // fall through | |
1236 | |
1237 default: | |
1238 { | |
1239 ShouldNotReachHere(); | |
1240 } break; | |
1241 } | |
1242 } // end copy_entry_to() | |
1243 | |
1244 | |
1245 // Search constant pool search_cp for an entry that matches this | |
1246 // constant pool's entry at pattern_i. Returns the index of a | |
1247 // matching entry or zero (0) if there is no matching entry. | |
1248 int constantPoolOopDesc::find_matching_entry(int pattern_i, | |
1249 constantPoolHandle search_cp, TRAPS) { | |
1250 | |
1251 // index zero (0) is not used | |
1252 for (int i = 1; i < search_cp->length(); i++) { | |
1253 bool found = compare_entry_to(pattern_i, search_cp, i, CHECK_0); | |
1254 if (found) { | |
1255 return i; | |
1256 } | |
1257 } | |
1258 | |
1259 return 0; // entry not found; return unused index zero (0) | |
1260 } // end find_matching_entry() | |
1261 | |
1262 | |
1263 #ifndef PRODUCT | |
1264 | |
1265 const char* constantPoolOopDesc::printable_name_at(int which) { | |
1266 | |
1267 constantTag tag = tag_at(which); | |
1268 | |
1269 if (tag.is_unresolved_string() || tag.is_string()) { | |
1270 return string_at_noresolve(which); | |
1271 } else if (tag.is_klass() || tag.is_unresolved_klass()) { | |
1272 return klass_name_at(which)->as_C_string(); | |
1273 } else if (tag.is_symbol()) { | |
1274 return symbol_at(which)->as_C_string(); | |
1275 } | |
1276 return ""; | |
1277 } | |
1278 | |
1279 #endif // PRODUCT | |
1280 | |
1281 | |
1282 // JVMTI GetConstantPool support | |
1283 | |
1284 // For temporary use until code is stable. | |
1285 #define DBG(code) | |
1286 | |
1287 static const char* WARN_MSG = "Must not be such entry!"; | |
1288 | |
1289 static void print_cpool_bytes(jint cnt, u1 *bytes) { | |
1290 jint size = 0; | |
1291 u2 idx1, idx2; | |
1292 | |
1293 for (jint idx = 1; idx < cnt; idx++) { | |
1294 jint ent_size = 0; | |
1295 u1 tag = *bytes++; | |
1296 size++; // count tag | |
1297 | |
1298 printf("const #%03d, tag: %02d ", idx, tag); | |
1299 switch(tag) { | |
1300 case JVM_CONSTANT_Invalid: { | |
1301 printf("Invalid"); | |
1302 break; | |
1303 } | |
1304 case JVM_CONSTANT_Unicode: { | |
1305 printf("Unicode %s", WARN_MSG); | |
1306 break; | |
1307 } | |
1308 case JVM_CONSTANT_Utf8: { | |
1309 u2 len = Bytes::get_Java_u2(bytes); | |
1310 char str[128]; | |
1311 if (len > 127) { | |
1312 len = 127; | |
1313 } | |
1314 strncpy(str, (char *) (bytes+2), len); | |
1315 str[len] = '\0'; | |
1316 printf("Utf8 \"%s\"", str); | |
1317 ent_size = 2 + len; | |
1318 break; | |
1319 } | |
1320 case JVM_CONSTANT_Integer: { | |
1321 u4 val = Bytes::get_Java_u4(bytes); | |
1322 printf("int %d", *(int *) &val); | |
1323 ent_size = 4; | |
1324 break; | |
1325 } | |
1326 case JVM_CONSTANT_Float: { | |
1327 u4 val = Bytes::get_Java_u4(bytes); | |
1328 printf("float %5.3ff", *(float *) &val); | |
1329 ent_size = 4; | |
1330 break; | |
1331 } | |
1332 case JVM_CONSTANT_Long: { | |
1333 u8 val = Bytes::get_Java_u8(bytes); | |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
431
diff
changeset
|
1334 printf("long "INT64_FORMAT, *(jlong *) &val); |
0 | 1335 ent_size = 8; |
1336 idx++; // Long takes two cpool slots | |
1337 break; | |
1338 } | |
1339 case JVM_CONSTANT_Double: { | |
1340 u8 val = Bytes::get_Java_u8(bytes); | |
1341 printf("double %5.3fd", *(jdouble *)&val); | |
1342 ent_size = 8; | |
1343 idx++; // Double takes two cpool slots | |
1344 break; | |
1345 } | |
1346 case JVM_CONSTANT_Class: { | |
1347 idx1 = Bytes::get_Java_u2(bytes); | |
1348 printf("class #%03d", idx1); | |
1349 ent_size = 2; | |
1350 break; | |
1351 } | |
1352 case JVM_CONSTANT_String: { | |
1353 idx1 = Bytes::get_Java_u2(bytes); | |
1354 printf("String #%03d", idx1); | |
1355 ent_size = 2; | |
1356 break; | |
1357 } | |
1358 case JVM_CONSTANT_Fieldref: { | |
1359 idx1 = Bytes::get_Java_u2(bytes); | |
1360 idx2 = Bytes::get_Java_u2(bytes+2); | |
1361 printf("Field #%03d, #%03d", (int) idx1, (int) idx2); | |
1362 ent_size = 4; | |
1363 break; | |
1364 } | |
1365 case JVM_CONSTANT_Methodref: { | |
1366 idx1 = Bytes::get_Java_u2(bytes); | |
1367 idx2 = Bytes::get_Java_u2(bytes+2); | |
1368 printf("Method #%03d, #%03d", idx1, idx2); | |
1369 ent_size = 4; | |
1370 break; | |
1371 } | |
1372 case JVM_CONSTANT_InterfaceMethodref: { | |
1373 idx1 = Bytes::get_Java_u2(bytes); | |
1374 idx2 = Bytes::get_Java_u2(bytes+2); | |
1375 printf("InterfMethod #%03d, #%03d", idx1, idx2); | |
1376 ent_size = 4; | |
1377 break; | |
1378 } | |
1379 case JVM_CONSTANT_NameAndType: { | |
1380 idx1 = Bytes::get_Java_u2(bytes); | |
1381 idx2 = Bytes::get_Java_u2(bytes+2); | |
1382 printf("NameAndType #%03d, #%03d", idx1, idx2); | |
1383 ent_size = 4; | |
1384 break; | |
1385 } | |
1386 case JVM_CONSTANT_ClassIndex: { | |
1387 printf("ClassIndex %s", WARN_MSG); | |
1388 break; | |
1389 } | |
1390 case JVM_CONSTANT_UnresolvedClass: { | |
1391 printf("UnresolvedClass: %s", WARN_MSG); | |
1392 break; | |
1393 } | |
1394 case JVM_CONSTANT_UnresolvedClassInError: { | |
1395 printf("UnresolvedClassInErr: %s", WARN_MSG); | |
1396 break; | |
1397 } | |
1398 case JVM_CONSTANT_StringIndex: { | |
1399 printf("StringIndex: %s", WARN_MSG); | |
1400 break; | |
1401 } | |
1402 case JVM_CONSTANT_UnresolvedString: { | |
1403 printf("UnresolvedString: %s", WARN_MSG); | |
1404 break; | |
1405 } | |
1406 } | |
1407 printf(";\n"); | |
1408 bytes += ent_size; | |
1409 size += ent_size; | |
1410 } | |
1411 printf("Cpool size: %d\n", size); | |
1412 fflush(0); | |
1413 return; | |
1414 } /* end print_cpool_bytes */ | |
1415 | |
1416 | |
1417 // Returns size of constant pool entry. | |
1418 jint constantPoolOopDesc::cpool_entry_size(jint idx) { | |
1419 switch(tag_at(idx).value()) { | |
1420 case JVM_CONSTANT_Invalid: | |
1421 case JVM_CONSTANT_Unicode: | |
1422 return 1; | |
1423 | |
1424 case JVM_CONSTANT_Utf8: | |
1425 return 3 + symbol_at(idx)->utf8_length(); | |
1426 | |
1427 case JVM_CONSTANT_Class: | |
1428 case JVM_CONSTANT_String: | |
1429 case JVM_CONSTANT_ClassIndex: | |
1430 case JVM_CONSTANT_UnresolvedClass: | |
1431 case JVM_CONSTANT_UnresolvedClassInError: | |
1432 case JVM_CONSTANT_StringIndex: | |
1433 case JVM_CONSTANT_UnresolvedString: | |
1602 | 1434 case JVM_CONSTANT_MethodType: |
0 | 1435 return 3; |
1436 | |
1602 | 1437 case JVM_CONSTANT_MethodHandle: |
1438 return 4; //tag, ref_kind, ref_index | |
1439 | |
0 | 1440 case JVM_CONSTANT_Integer: |
1441 case JVM_CONSTANT_Float: | |
1442 case JVM_CONSTANT_Fieldref: | |
1443 case JVM_CONSTANT_Methodref: | |
1444 case JVM_CONSTANT_InterfaceMethodref: | |
1445 case JVM_CONSTANT_NameAndType: | |
1913
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
1446 return 5; |
3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents:
1910
diff
changeset
|
1447 |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
1448 case 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
|
1449 case JVM_CONSTANT_InvokeDynamicTrans: |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1450 // u1 tag, u2 bsm, u2 nt |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1451 return 5; |
0 | 1452 |
1453 case JVM_CONSTANT_Long: | |
1454 case JVM_CONSTANT_Double: | |
1455 return 9; | |
1456 } | |
1457 assert(false, "cpool_entry_size: Invalid constant pool entry tag"); | |
1458 return 1; | |
1459 } /* end cpool_entry_size */ | |
1460 | |
1461 | |
1462 // SymbolHashMap is used to find a constant pool index from a string. | |
1463 // This function fills in SymbolHashMaps, one for utf8s and one for | |
1464 // class names, returns size of the cpool raw bytes. | |
1465 jint constantPoolOopDesc::hash_entries_to(SymbolHashMap *symmap, | |
1466 SymbolHashMap *classmap) { | |
1467 jint size = 0; | |
1468 | |
1469 for (u2 idx = 1; idx < length(); idx++) { | |
1470 u2 tag = tag_at(idx).value(); | |
1471 size += cpool_entry_size(idx); | |
1472 | |
1473 switch(tag) { | |
1474 case JVM_CONSTANT_Utf8: { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1475 Symbol* sym = symbol_at(idx); |
0 | 1476 symmap->add_entry(sym, idx); |
1477 DBG(printf("adding symbol entry %s = %d\n", sym->as_utf8(), idx)); | |
1478 break; | |
1479 } | |
1480 case JVM_CONSTANT_Class: | |
1481 case JVM_CONSTANT_UnresolvedClass: | |
1482 case JVM_CONSTANT_UnresolvedClassInError: { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1483 Symbol* sym = klass_name_at(idx); |
0 | 1484 classmap->add_entry(sym, idx); |
1485 DBG(printf("adding class entry %s = %d\n", sym->as_utf8(), idx)); | |
1486 break; | |
1487 } | |
1488 case JVM_CONSTANT_Long: | |
1489 case JVM_CONSTANT_Double: { | |
1490 idx++; // Both Long and Double take two cpool slots | |
1491 break; | |
1492 } | |
1493 } | |
1494 } | |
1495 return size; | |
1496 } /* end hash_utf8_entries_to */ | |
1497 | |
1498 | |
1499 // Copy cpool bytes. | |
1500 // Returns: | |
1501 // 0, in case of OutOfMemoryError | |
1502 // -1, in case of internal error | |
1503 // > 0, count of the raw cpool bytes that have been copied | |
1504 int constantPoolOopDesc::copy_cpool_bytes(int cpool_size, | |
1505 SymbolHashMap* tbl, | |
1506 unsigned char *bytes) { | |
1507 u2 idx1, idx2; | |
1508 jint size = 0; | |
1509 jint cnt = length(); | |
1510 unsigned char *start_bytes = bytes; | |
1511 | |
1512 for (jint idx = 1; idx < cnt; idx++) { | |
1513 u1 tag = tag_at(idx).value(); | |
1514 jint ent_size = cpool_entry_size(idx); | |
1515 | |
1516 assert(size + ent_size <= cpool_size, "Size mismatch"); | |
1517 | |
1518 *bytes = tag; | |
1519 DBG(printf("#%03hd tag=%03hd, ", idx, tag)); | |
1520 switch(tag) { | |
1521 case JVM_CONSTANT_Invalid: { | |
1522 DBG(printf("JVM_CONSTANT_Invalid")); | |
1523 break; | |
1524 } | |
1525 case JVM_CONSTANT_Unicode: { | |
1526 assert(false, "Wrong constant pool tag: JVM_CONSTANT_Unicode"); | |
1527 DBG(printf("JVM_CONSTANT_Unicode")); | |
1528 break; | |
1529 } | |
1530 case JVM_CONSTANT_Utf8: { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1531 Symbol* sym = symbol_at(idx); |
0 | 1532 char* str = sym->as_utf8(); |
1533 // Warning! It's crashing on x86 with len = sym->utf8_length() | |
1534 int len = (int) strlen(str); | |
1535 Bytes::put_Java_u2((address) (bytes+1), (u2) len); | |
1536 for (int i = 0; i < len; i++) { | |
1537 bytes[3+i] = (u1) str[i]; | |
1538 } | |
1539 DBG(printf("JVM_CONSTANT_Utf8: %s ", str)); | |
1540 break; | |
1541 } | |
1542 case JVM_CONSTANT_Integer: { | |
1543 jint val = int_at(idx); | |
1544 Bytes::put_Java_u4((address) (bytes+1), *(u4*)&val); | |
1545 break; | |
1546 } | |
1547 case JVM_CONSTANT_Float: { | |
1548 jfloat val = float_at(idx); | |
1549 Bytes::put_Java_u4((address) (bytes+1), *(u4*)&val); | |
1550 break; | |
1551 } | |
1552 case JVM_CONSTANT_Long: { | |
1553 jlong val = long_at(idx); | |
1554 Bytes::put_Java_u8((address) (bytes+1), *(u8*)&val); | |
1555 idx++; // Long takes two cpool slots | |
1556 break; | |
1557 } | |
1558 case JVM_CONSTANT_Double: { | |
1559 jdouble val = double_at(idx); | |
1560 Bytes::put_Java_u8((address) (bytes+1), *(u8*)&val); | |
1561 idx++; // Double takes two cpool slots | |
1562 break; | |
1563 } | |
1564 case JVM_CONSTANT_Class: | |
1565 case JVM_CONSTANT_UnresolvedClass: | |
1566 case JVM_CONSTANT_UnresolvedClassInError: { | |
1567 *bytes = JVM_CONSTANT_Class; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1568 Symbol* sym = klass_name_at(idx); |
0 | 1569 idx1 = tbl->symbol_to_value(sym); |
1570 assert(idx1 != 0, "Have not found a hashtable entry"); | |
1571 Bytes::put_Java_u2((address) (bytes+1), idx1); | |
1572 DBG(printf("JVM_CONSTANT_Class: idx=#%03hd, %s", idx1, sym->as_utf8())); | |
1573 break; | |
1574 } | |
1575 case JVM_CONSTANT_String: { | |
1576 unsigned int hash; | |
1577 char *str = string_at_noresolve(idx); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1578 TempNewSymbol sym = SymbolTable::lookup_only(str, (int) strlen(str), hash); |
773
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1579 if (sym == NULL) { |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1580 // sym can be NULL if string refers to incorrectly encoded JVM_CONSTANT_Utf8 |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1581 // this can happen with JVM TI; see CR 6839599 for more details |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1582 oop string = *(obj_at_addr_raw(idx)); |
773
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1583 assert(java_lang_String::is_instance(string),"Not a String"); |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1584 DBG(printf("Error #%03hd tag=%03hd\n", idx, tag)); |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1585 idx1 = 0; |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1586 for (int j = 0; j < tbl->table_size() && idx1 == 0; j++) { |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1587 for (SymbolHashMapEntry* cur = tbl->bucket(j); cur != NULL; cur = cur->next()) { |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1588 int length; |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1589 Symbol* s = cur->symbol(); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1590 jchar* chars = s->as_unicode(length); |
773
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1591 if (java_lang_String::equals(string, chars, length)) { |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1592 idx1 = cur->value(); |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1593 DBG(printf("Index found: %d\n",idx1)); |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1594 break; |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1595 } |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1596 } |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1597 } |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1598 } else { |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1599 idx1 = tbl->symbol_to_value(sym); |
47ffceb239d0
6839599: JVM crash while profiling Tomcat and Liferay
thurka
parents:
726
diff
changeset
|
1600 } |
0 | 1601 assert(idx1 != 0, "Have not found a hashtable entry"); |
1602 Bytes::put_Java_u2((address) (bytes+1), idx1); | |
1603 DBG(printf("JVM_CONSTANT_String: idx=#%03hd, %s", idx1, str)); | |
1604 break; | |
1605 } | |
1606 case JVM_CONSTANT_UnresolvedString: { | |
1607 *bytes = JVM_CONSTANT_String; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1608 Symbol* sym = unresolved_string_at(idx); |
0 | 1609 idx1 = tbl->symbol_to_value(sym); |
1610 assert(idx1 != 0, "Have not found a hashtable entry"); | |
1611 Bytes::put_Java_u2((address) (bytes+1), idx1); | |
1612 DBG(char *str = sym->as_utf8()); | |
1613 DBG(printf("JVM_CONSTANT_UnresolvedString: idx=#%03hd, %s", idx1, str)); | |
1614 break; | |
1615 } | |
1616 case JVM_CONSTANT_Fieldref: | |
1617 case JVM_CONSTANT_Methodref: | |
1618 case JVM_CONSTANT_InterfaceMethodref: { | |
1619 idx1 = uncached_klass_ref_index_at(idx); | |
1620 idx2 = uncached_name_and_type_ref_index_at(idx); | |
1621 Bytes::put_Java_u2((address) (bytes+1), idx1); | |
1622 Bytes::put_Java_u2((address) (bytes+3), idx2); | |
1623 DBG(printf("JVM_CONSTANT_Methodref: %hd %hd", idx1, idx2)); | |
1624 break; | |
1625 } | |
1626 case JVM_CONSTANT_NameAndType: { | |
1627 idx1 = name_ref_index_at(idx); | |
1628 idx2 = signature_ref_index_at(idx); | |
1629 Bytes::put_Java_u2((address) (bytes+1), idx1); | |
1630 Bytes::put_Java_u2((address) (bytes+3), idx2); | |
1631 DBG(printf("JVM_CONSTANT_NameAndType: %hd %hd", idx1, idx2)); | |
1632 break; | |
1633 } | |
1634 case JVM_CONSTANT_ClassIndex: { | |
1635 *bytes = JVM_CONSTANT_Class; | |
1636 idx1 = klass_index_at(idx); | |
1637 Bytes::put_Java_u2((address) (bytes+1), idx1); | |
1638 DBG(printf("JVM_CONSTANT_ClassIndex: %hd", idx1)); | |
1639 break; | |
1640 } | |
1641 case JVM_CONSTANT_StringIndex: { | |
1642 *bytes = JVM_CONSTANT_String; | |
1643 idx1 = string_index_at(idx); | |
1644 Bytes::put_Java_u2((address) (bytes+1), idx1); | |
1645 DBG(printf("JVM_CONSTANT_StringIndex: %hd", idx1)); | |
1646 break; | |
1647 } | |
1602 | 1648 case JVM_CONSTANT_MethodHandle: { |
1649 *bytes = JVM_CONSTANT_MethodHandle; | |
1650 int kind = method_handle_ref_kind_at(idx); | |
1651 idx1 = method_handle_index_at(idx); | |
1652 *(bytes+1) = (unsigned char) kind; | |
1653 Bytes::put_Java_u2((address) (bytes+2), idx1); | |
1654 DBG(printf("JVM_CONSTANT_MethodHandle: %d %hd", kind, idx1)); | |
1655 break; | |
1656 } | |
1657 case JVM_CONSTANT_MethodType: { | |
1658 *bytes = JVM_CONSTANT_MethodType; | |
1659 idx1 = method_type_index_at(idx); | |
1660 Bytes::put_Java_u2((address) (bytes+1), idx1); | |
1661 DBG(printf("JVM_CONSTANT_MethodType: %hd", idx1)); | |
1662 break; | |
1663 } | |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1664 case JVM_CONSTANT_InvokeDynamicTrans: |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
1665 case 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
|
1666 *bytes = tag; |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1667 idx1 = extract_low_short_from_int(*int_at_addr(idx)); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1668 idx2 = extract_high_short_from_int(*int_at_addr(idx)); |
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1669 assert(idx2 == invoke_dynamic_name_and_type_ref_index_at(idx), "correct half of u4"); |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
1670 Bytes::put_Java_u2((address) (bytes+1), idx1); |
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
1671 Bytes::put_Java_u2((address) (bytes+3), idx2); |
2011
dad31fc330cd
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
1972
diff
changeset
|
1672 DBG(printf("JVM_CONSTANT_InvokeDynamic: %hd %hd", idx1, idx2)); |
1660
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
1673 break; |
083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
1602
diff
changeset
|
1674 } |
0 | 1675 } |
1676 DBG(printf("\n")); | |
1677 bytes += ent_size; | |
1678 size += ent_size; | |
1679 } | |
1680 assert(size == cpool_size, "Size mismatch"); | |
1681 | |
1682 // Keep temorarily for debugging until it's stable. | |
1683 DBG(print_cpool_bytes(cnt, start_bytes)); | |
1684 return (int)(bytes - start_bytes); | |
1685 } /* end copy_cpool_bytes */ | |
1686 | |
1687 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1688 void SymbolHashMap::add_entry(Symbol* sym, u2 value) { |
0 | 1689 char *str = sym->as_utf8(); |
1690 unsigned int hash = compute_hash(str, sym->utf8_length()); | |
1691 unsigned int index = hash % table_size(); | |
1692 | |
1693 // check if already in map | |
1694 // we prefer the first entry since it is more likely to be what was used in | |
1695 // the class file | |
1696 for (SymbolHashMapEntry *en = bucket(index); en != NULL; en = en->next()) { | |
1697 assert(en->symbol() != NULL, "SymbolHashMapEntry symbol is NULL"); | |
1698 if (en->hash() == hash && en->symbol() == sym) { | |
1699 return; // already there | |
1700 } | |
1701 } | |
1702 | |
1703 SymbolHashMapEntry* entry = new SymbolHashMapEntry(hash, sym, value); | |
1704 entry->set_next(bucket(index)); | |
1705 _buckets[index].set_entry(entry); | |
1706 assert(entry->symbol() != NULL, "SymbolHashMapEntry symbol is NULL"); | |
1707 } | |
1708 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2011
diff
changeset
|
1709 SymbolHashMapEntry* SymbolHashMap::find_entry(Symbol* sym) { |
0 | 1710 assert(sym != NULL, "SymbolHashMap::find_entry - symbol is NULL"); |
1711 char *str = sym->as_utf8(); | |
1712 int len = sym->utf8_length(); | |
1713 unsigned int hash = SymbolHashMap::compute_hash(str, len); | |
1714 unsigned int index = hash % table_size(); | |
1715 for (SymbolHashMapEntry *en = bucket(index); en != NULL; en = en->next()) { | |
1716 assert(en->symbol() != NULL, "SymbolHashMapEntry symbol is NULL"); | |
1717 if (en->hash() == hash && en->symbol() == sym) { | |
1718 return en; | |
1719 } | |
1720 } | |
1721 return NULL; | |
1722 } |