Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/interpreter/linkResolver.cpp@60b8287df30e
src/share/vm/interpreter/linkResolver.cpp
Wed, 01 Jun 2011 23:25:20 -0700
- author
- jrose
- date
- Wed, 01 Jun 2011 23:25:20 -0700
- changeset 2941
- 60b8287df30e
- parent 2856
- acf5e660c71a
- child 2982
- ddd894528dbc
- permissions
- -rw-r--r--
7049415: Failure of resolution of sym.reference to the c.s.s. should be wrapped in BootstrapMethodError
Summary: Delegate invokedynamic linkage errors to MethodHandleNatives.raiseException.
Reviewed-by: never
1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #include "precompiled.hpp"
26 #include "classfile/systemDictionary.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "compiler/compileBroker.hpp"
29 #include "gc_interface/collectedHeap.inline.hpp"
30 #include "interpreter/bytecode.hpp"
31 #include "interpreter/interpreterRuntime.hpp"
32 #include "interpreter/linkResolver.hpp"
33 #include "memory/resourceArea.hpp"
34 #include "memory/universe.inline.hpp"
35 #include "oops/instanceKlass.hpp"
36 #include "oops/objArrayOop.hpp"
37 #include "prims/methodHandles.hpp"
38 #include "prims/nativeLookup.hpp"
39 #include "runtime/compilationPolicy.hpp"
40 #include "runtime/fieldDescriptor.hpp"
41 #include "runtime/frame.inline.hpp"
42 #include "runtime/handles.inline.hpp"
43 #include "runtime/reflection.hpp"
44 #include "runtime/signature.hpp"
45 #include "runtime/vmThread.hpp"
46 #ifdef TARGET_OS_FAMILY_linux
47 # include "thread_linux.inline.hpp"
48 #endif
49 #ifdef TARGET_OS_FAMILY_solaris
50 # include "thread_solaris.inline.hpp"
51 #endif
52 #ifdef TARGET_OS_FAMILY_windows
53 # include "thread_windows.inline.hpp"
54 #endif
56 //------------------------------------------------------------------------------------------------------------------------
57 // Implementation of FieldAccessInfo
59 void FieldAccessInfo::set(KlassHandle klass, Symbol* name, int field_index, int field_offset,
60 BasicType field_type, AccessFlags access_flags) {
61 _klass = klass;
62 _name = name;
63 _field_index = field_index;
64 _field_offset = field_offset;
65 _field_type = field_type;
66 _access_flags = access_flags;
67 }
70 //------------------------------------------------------------------------------------------------------------------------
71 // Implementation of CallInfo
74 void CallInfo::set_static(KlassHandle resolved_klass, methodHandle resolved_method, TRAPS) {
75 int vtable_index = methodOopDesc::nonvirtual_vtable_index;
76 set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, vtable_index, CHECK);
77 }
80 void CallInfo::set_interface(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, TRAPS) {
81 // This is only called for interface methods. If the resolved_method
82 // comes from java/lang/Object, it can be the subject of a virtual call, so
83 // we should pick the vtable index from the resolved method.
84 // Other than that case, there is no valid vtable index to specify.
85 int vtable_index = methodOopDesc::invalid_vtable_index;
86 if (resolved_method->method_holder() == SystemDictionary::Object_klass()) {
87 assert(resolved_method->vtable_index() == selected_method->vtable_index(), "sanity check");
88 vtable_index = resolved_method->vtable_index();
89 }
90 set_common(resolved_klass, selected_klass, resolved_method, selected_method, vtable_index, CHECK);
91 }
93 void CallInfo::set_virtual(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS) {
94 assert(vtable_index >= 0 || vtable_index == methodOopDesc::nonvirtual_vtable_index, "valid index");
95 set_common(resolved_klass, selected_klass, resolved_method, selected_method, vtable_index, CHECK);
96 }
98 void CallInfo::set_dynamic(methodHandle resolved_method, TRAPS) {
99 assert(resolved_method->is_method_handle_invoke(), "");
100 KlassHandle resolved_klass = SystemDictionaryHandles::MethodHandle_klass();
101 assert(resolved_klass == resolved_method->method_holder(), "");
102 int vtable_index = methodOopDesc::nonvirtual_vtable_index;
103 assert(resolved_method->vtable_index() == vtable_index, "");
104 set_common(resolved_klass, KlassHandle(), resolved_method, resolved_method, vtable_index, CHECK);
105 }
107 void CallInfo::set_common(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS) {
108 assert(resolved_method->signature() == selected_method->signature(), "signatures must correspond");
109 _resolved_klass = resolved_klass;
110 _selected_klass = selected_klass;
111 _resolved_method = resolved_method;
112 _selected_method = selected_method;
113 _vtable_index = vtable_index;
114 if (CompilationPolicy::must_be_compiled(selected_method)) {
115 // This path is unusual, mostly used by the '-Xcomp' stress test mode.
117 // Note: with several active threads, the must_be_compiled may be true
118 // while can_be_compiled is false; remove assert
119 // assert(CompilationPolicy::can_be_compiled(selected_method), "cannot compile");
120 if (THREAD->is_Compiler_thread()) {
121 // don't force compilation, resolve was on behalf of compiler
122 return;
123 }
124 if (instanceKlass::cast(selected_method->method_holder())->is_not_initialized()) {
125 // 'is_not_initialized' means not only '!is_initialized', but also that
126 // initialization has not been started yet ('!being_initialized')
127 // Do not force compilation of methods in uninitialized classes.
128 // Note that doing this would throw an assert later,
129 // in CompileBroker::compile_method.
130 // We sometimes use the link resolver to do reflective lookups
131 // even before classes are initialized.
132 return;
133 }
134 CompileBroker::compile_method(selected_method, InvocationEntryBci,
135 CompLevel_initial_compile,
136 methodHandle(), 0, "must_be_compiled", CHECK);
137 }
138 }
141 //------------------------------------------------------------------------------------------------------------------------
142 // Klass resolution
144 void LinkResolver::check_klass_accessability(KlassHandle ref_klass, KlassHandle sel_klass, TRAPS) {
145 if (!Reflection::verify_class_access(ref_klass->as_klassOop(),
146 sel_klass->as_klassOop(),
147 true)) {
148 ResourceMark rm(THREAD);
149 Exceptions::fthrow(
150 THREAD_AND_LOCATION,
151 vmSymbols::java_lang_IllegalAccessError(),
152 "tried to access class %s from class %s",
153 sel_klass->external_name(),
154 ref_klass->external_name()
155 );
156 return;
157 }
158 }
160 void LinkResolver::resolve_klass(KlassHandle& result, constantPoolHandle pool, int index, TRAPS) {
161 klassOop result_oop = pool->klass_ref_at(index, CHECK);
162 result = KlassHandle(THREAD, result_oop);
163 }
165 void LinkResolver::resolve_klass_no_update(KlassHandle& result, constantPoolHandle pool, int index, TRAPS) {
166 klassOop result_oop =
167 constantPoolOopDesc::klass_ref_at_if_loaded_check(pool, index, CHECK);
168 result = KlassHandle(THREAD, result_oop);
169 }
172 //------------------------------------------------------------------------------------------------------------------------
173 // Method resolution
174 //
175 // According to JVM spec. $5.4.3c & $5.4.3d
177 void LinkResolver::lookup_method_in_klasses(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) {
178 methodOop result_oop = klass->uncached_lookup_method(name, signature);
179 if (EnableInvokeDynamic && result_oop != NULL) {
180 switch (result_oop->intrinsic_id()) {
181 case vmIntrinsics::_invokeExact:
182 case vmIntrinsics::_invokeGeneric:
183 case vmIntrinsics::_invokeDynamic:
184 // Do not link directly to these. The VM must produce a synthetic one using lookup_implicit_method.
185 return;
186 }
187 }
188 result = methodHandle(THREAD, result_oop);
189 }
191 // returns first instance method
192 void LinkResolver::lookup_instance_method_in_klasses(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) {
193 methodOop result_oop = klass->uncached_lookup_method(name, signature);
194 result = methodHandle(THREAD, result_oop);
195 while (!result.is_null() && result->is_static()) {
196 klass = KlassHandle(THREAD, Klass::cast(result->method_holder())->super());
197 result = methodHandle(THREAD, klass->uncached_lookup_method(name, signature));
198 }
199 }
202 int LinkResolver::vtable_index_of_miranda_method(KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) {
203 ResourceMark rm(THREAD);
204 klassVtable *vt = instanceKlass::cast(klass())->vtable();
205 return vt->index_of_miranda(name, signature);
206 }
208 void LinkResolver::lookup_method_in_interfaces(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) {
209 instanceKlass *ik = instanceKlass::cast(klass());
210 result = methodHandle(THREAD, ik->lookup_method_in_all_interfaces(name, signature));
211 }
213 void LinkResolver::lookup_implicit_method(methodHandle& result,
214 KlassHandle klass, Symbol* name, Symbol* signature,
215 KlassHandle current_klass,
216 TRAPS) {
217 if (EnableInvokeDynamic &&
218 klass() == SystemDictionary::MethodHandle_klass() &&
219 methodOopDesc::is_method_handle_invoke_name(name)) {
220 if (!THREAD->is_Compiler_thread() && !MethodHandles::enabled()) {
221 // Make sure the Java part of the runtime has been booted up.
222 klassOop natives = SystemDictionary::MethodHandleNatives_klass();
223 if (natives == NULL || instanceKlass::cast(natives)->is_not_initialized()) {
224 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_invoke_MethodHandleNatives(),
225 Handle(),
226 Handle(),
227 true,
228 CHECK);
229 }
230 }
231 methodOop result_oop = SystemDictionary::find_method_handle_invoke(name,
232 signature,
233 current_klass,
234 CHECK);
235 if (result_oop != NULL) {
236 assert(result_oop->is_method_handle_invoke() && result_oop->signature() == signature, "consistent");
237 result = methodHandle(THREAD, result_oop);
238 }
239 }
240 }
242 void LinkResolver::check_method_accessability(KlassHandle ref_klass,
243 KlassHandle resolved_klass,
244 KlassHandle sel_klass,
245 methodHandle sel_method,
246 TRAPS) {
248 AccessFlags flags = sel_method->access_flags();
250 // Special case: arrays always override "clone". JVMS 2.15.
251 // If the resolved klass is an array class, and the declaring class
252 // is java.lang.Object and the method is "clone", set the flags
253 // to public.
254 //
255 // We'll check for the method name first, as that's most likely
256 // to be false (so we'll short-circuit out of these tests).
257 if (sel_method->name() == vmSymbols::clone_name() &&
258 sel_klass() == SystemDictionary::Object_klass() &&
259 resolved_klass->oop_is_array()) {
260 // We need to change "protected" to "public".
261 assert(flags.is_protected(), "clone not protected?");
262 jint new_flags = flags.as_int();
263 new_flags = new_flags & (~JVM_ACC_PROTECTED);
264 new_flags = new_flags | JVM_ACC_PUBLIC;
265 flags.set_flags(new_flags);
266 }
268 if (!Reflection::verify_field_access(ref_klass->as_klassOop(),
269 resolved_klass->as_klassOop(),
270 sel_klass->as_klassOop(),
271 flags,
272 true)) {
273 ResourceMark rm(THREAD);
274 Exceptions::fthrow(
275 THREAD_AND_LOCATION,
276 vmSymbols::java_lang_IllegalAccessError(),
277 "tried to access method %s.%s%s from class %s",
278 sel_klass->external_name(),
279 sel_method->name()->as_C_string(),
280 sel_method->signature()->as_C_string(),
281 ref_klass->external_name()
282 );
283 return;
284 }
285 }
287 void LinkResolver::resolve_method(methodHandle& resolved_method, KlassHandle& resolved_klass,
288 constantPoolHandle pool, int index, TRAPS) {
290 // resolve klass
291 resolve_klass(resolved_klass, pool, index, CHECK);
293 Symbol* method_name = pool->name_ref_at(index);
294 Symbol* method_signature = pool->signature_ref_at(index);
295 KlassHandle current_klass(THREAD, pool->pool_holder());
297 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
298 }
300 void LinkResolver::resolve_dynamic_method(methodHandle& resolved_method, KlassHandle& resolved_klass, constantPoolHandle pool, int index, TRAPS) {
301 // The class is java.lang.invoke.MethodHandle
302 resolved_klass = SystemDictionaryHandles::MethodHandle_klass();
304 Symbol* method_name = vmSymbols::invokeExact_name();
306 Symbol* method_signature = pool->signature_ref_at(index);
307 KlassHandle current_klass (THREAD, pool->pool_holder());
309 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
310 }
312 void LinkResolver::resolve_interface_method(methodHandle& resolved_method, KlassHandle& resolved_klass, constantPoolHandle pool, int index, TRAPS) {
314 // resolve klass
315 resolve_klass(resolved_klass, pool, index, CHECK);
316 Symbol* method_name = pool->name_ref_at(index);
317 Symbol* method_signature = pool->signature_ref_at(index);
318 KlassHandle current_klass(THREAD, pool->pool_holder());
320 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
321 }
324 void LinkResolver::resolve_method(methodHandle& resolved_method, KlassHandle resolved_klass,
325 Symbol* method_name, Symbol* method_signature,
326 KlassHandle current_klass, bool check_access, TRAPS) {
328 // 1. check if klass is not interface
329 if (resolved_klass->is_interface()) {
330 ResourceMark rm(THREAD);
331 char buf[200];
332 jio_snprintf(buf, sizeof(buf), "Found interface %s, but class was expected", Klass::cast(resolved_klass())->external_name());
333 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
334 }
336 // 2. lookup method in resolved klass and its super klasses
337 lookup_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, CHECK);
339 if (resolved_method.is_null()) { // not found in the class hierarchy
340 // 3. lookup method in all the interfaces implemented by the resolved klass
341 lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK);
343 if (resolved_method.is_null()) {
344 // JSR 292: see if this is an implicitly generated method MethodHandle.invoke(*...)
345 lookup_implicit_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, CHECK);
346 }
348 if (resolved_method.is_null()) {
349 // 4. method lookup failed
350 ResourceMark rm(THREAD);
351 THROW_MSG(vmSymbols::java_lang_NoSuchMethodError(),
352 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
353 method_name,
354 method_signature));
355 }
356 }
358 // 5. check if method is concrete
359 if (resolved_method->is_abstract() && !resolved_klass->is_abstract()) {
360 ResourceMark rm(THREAD);
361 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
362 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
363 method_name,
364 method_signature));
365 }
367 // 6. access checks, access checking may be turned off when calling from within the VM.
368 if (check_access) {
369 assert(current_klass.not_null() , "current_klass should not be null");
371 // check if method can be accessed by the referring class
372 check_method_accessability(current_klass,
373 resolved_klass,
374 KlassHandle(THREAD, resolved_method->method_holder()),
375 resolved_method,
376 CHECK);
378 // check loader constraints
379 Handle loader (THREAD, instanceKlass::cast(current_klass())->class_loader());
380 Handle class_loader (THREAD, instanceKlass::cast(resolved_method->method_holder())->class_loader());
381 {
382 ResourceMark rm(THREAD);
383 char* failed_type_name =
384 SystemDictionary::check_signature_loaders(method_signature, loader,
385 class_loader, true, CHECK);
386 if (failed_type_name != NULL) {
387 const char* msg = "loader constraint violation: when resolving method"
388 " \"%s\" the class loader (instance of %s) of the current class, %s,"
389 " and the class loader (instance of %s) for resolved class, %s, have"
390 " different Class objects for the type %s used in the signature";
391 char* sig = methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),method_name,method_signature);
392 const char* loader1 = SystemDictionary::loader_name(loader());
393 char* current = instanceKlass::cast(current_klass())->name()->as_C_string();
394 const char* loader2 = SystemDictionary::loader_name(class_loader());
395 char* resolved = instanceKlass::cast(resolved_klass())->name()->as_C_string();
396 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) +
397 strlen(current) + strlen(loader2) + strlen(resolved) +
398 strlen(failed_type_name);
399 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
400 jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2,
401 resolved, failed_type_name);
402 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf);
403 }
404 }
405 }
406 }
408 void LinkResolver::resolve_interface_method(methodHandle& resolved_method,
409 KlassHandle resolved_klass,
410 Symbol* method_name,
411 Symbol* method_signature,
412 KlassHandle current_klass,
413 bool check_access, TRAPS) {
415 // check if klass is interface
416 if (!resolved_klass->is_interface()) {
417 ResourceMark rm(THREAD);
418 char buf[200];
419 jio_snprintf(buf, sizeof(buf), "Found class %s, but interface was expected", Klass::cast(resolved_klass())->external_name());
420 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
421 }
423 // lookup method in this interface or its super, java.lang.Object
424 lookup_instance_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, CHECK);
426 if (resolved_method.is_null()) {
427 // lookup method in all the super-interfaces
428 lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK);
429 if (resolved_method.is_null()) {
430 // no method found
431 ResourceMark rm(THREAD);
432 THROW_MSG(vmSymbols::java_lang_NoSuchMethodError(),
433 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
434 method_name,
435 method_signature));
436 }
437 }
439 if (check_access) {
440 HandleMark hm(THREAD);
441 Handle loader (THREAD, instanceKlass::cast(current_klass())->class_loader());
442 Handle class_loader (THREAD, instanceKlass::cast(resolved_method->method_holder())->class_loader());
443 {
444 ResourceMark rm(THREAD);
445 char* failed_type_name =
446 SystemDictionary::check_signature_loaders(method_signature, loader,
447 class_loader, true, CHECK);
448 if (failed_type_name != NULL) {
449 const char* msg = "loader constraint violation: when resolving "
450 "interface method \"%s\" the class loader (instance of %s) of the "
451 "current class, %s, and the class loader (instance of %s) for "
452 "resolved class, %s, have different Class objects for the type %s "
453 "used in the signature";
454 char* sig = methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),method_name,method_signature);
455 const char* loader1 = SystemDictionary::loader_name(loader());
456 char* current = instanceKlass::cast(current_klass())->name()->as_C_string();
457 const char* loader2 = SystemDictionary::loader_name(class_loader());
458 char* resolved = instanceKlass::cast(resolved_klass())->name()->as_C_string();
459 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) +
460 strlen(current) + strlen(loader2) + strlen(resolved) +
461 strlen(failed_type_name);
462 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
463 jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2,
464 resolved, failed_type_name);
465 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf);
466 }
467 }
468 }
469 }
471 //------------------------------------------------------------------------------------------------------------------------
472 // Field resolution
474 void LinkResolver::check_field_accessability(KlassHandle ref_klass,
475 KlassHandle resolved_klass,
476 KlassHandle sel_klass,
477 fieldDescriptor& fd,
478 TRAPS) {
479 if (!Reflection::verify_field_access(ref_klass->as_klassOop(),
480 resolved_klass->as_klassOop(),
481 sel_klass->as_klassOop(),
482 fd.access_flags(),
483 true)) {
484 ResourceMark rm(THREAD);
485 Exceptions::fthrow(
486 THREAD_AND_LOCATION,
487 vmSymbols::java_lang_IllegalAccessError(),
488 "tried to access field %s.%s from class %s",
489 sel_klass->external_name(),
490 fd.name()->as_C_string(),
491 ref_klass->external_name()
492 );
493 return;
494 }
495 }
497 void LinkResolver::resolve_field(FieldAccessInfo& result, constantPoolHandle pool, int index, Bytecodes::Code byte, bool check_only, TRAPS) {
498 resolve_field(result, pool, index, byte, check_only, true, CHECK);
499 }
501 void LinkResolver::resolve_field(FieldAccessInfo& result, constantPoolHandle pool, int index, Bytecodes::Code byte, bool check_only, bool update_pool, TRAPS) {
502 assert(byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic ||
503 byte == Bytecodes::_getfield || byte == Bytecodes::_putfield, "bad bytecode");
505 bool is_static = (byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic);
506 bool is_put = (byte == Bytecodes::_putfield || byte == Bytecodes::_putstatic);
508 // resolve specified klass
509 KlassHandle resolved_klass;
510 if (update_pool) {
511 resolve_klass(resolved_klass, pool, index, CHECK);
512 } else {
513 resolve_klass_no_update(resolved_klass, pool, index, CHECK);
514 }
515 // Load these early in case the resolve of the containing klass fails
516 Symbol* field = pool->name_ref_at(index);
517 Symbol* sig = pool->signature_ref_at(index);
518 // Check if there's a resolved klass containing the field
519 if( resolved_klass.is_null() ) {
520 ResourceMark rm(THREAD);
521 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string());
522 }
524 // Resolve instance field
525 fieldDescriptor fd; // find_field initializes fd if found
526 KlassHandle sel_klass(THREAD, instanceKlass::cast(resolved_klass())->find_field(field, sig, &fd));
527 // check if field exists; i.e., if a klass containing the field def has been selected
528 if (sel_klass.is_null()){
529 ResourceMark rm(THREAD);
530 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string());
531 }
533 // check access
534 KlassHandle ref_klass(THREAD, pool->pool_holder());
535 check_field_accessability(ref_klass, resolved_klass, sel_klass, fd, CHECK);
537 // check for errors
538 if (is_static != fd.is_static()) {
539 ResourceMark rm(THREAD);
540 char msg[200];
541 jio_snprintf(msg, sizeof(msg), "Expected %s field %s.%s", is_static ? "static" : "non-static", Klass::cast(resolved_klass())->external_name(), fd.name()->as_C_string());
542 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), msg);
543 }
545 // Final fields can only be accessed from its own class.
546 if (is_put && fd.access_flags().is_final() && sel_klass() != pool->pool_holder()) {
547 THROW(vmSymbols::java_lang_IllegalAccessError());
548 }
550 // initialize resolved_klass if necessary
551 // note 1: the klass which declared the field must be initialized (i.e, sel_klass)
552 // according to the newest JVM spec (5.5, p.170) - was bug (gri 7/28/99)
553 //
554 // note 2: we don't want to force initialization if we are just checking
555 // if the field access is legal; e.g., during compilation
556 if (is_static && !check_only) {
557 sel_klass->initialize(CHECK);
558 }
560 {
561 HandleMark hm(THREAD);
562 Handle ref_loader (THREAD, instanceKlass::cast(ref_klass())->class_loader());
563 Handle sel_loader (THREAD, instanceKlass::cast(sel_klass())->class_loader());
564 Symbol* signature_ref = pool->signature_ref_at(index);
565 {
566 ResourceMark rm(THREAD);
567 char* failed_type_name =
568 SystemDictionary::check_signature_loaders(signature_ref,
569 ref_loader, sel_loader,
570 false,
571 CHECK);
572 if (failed_type_name != NULL) {
573 const char* msg = "loader constraint violation: when resolving field"
574 " \"%s\" the class loader (instance of %s) of the referring class, "
575 "%s, and the class loader (instance of %s) for the field's resolved "
576 "type, %s, have different Class objects for that type";
577 char* field_name = field->as_C_string();
578 const char* loader1 = SystemDictionary::loader_name(ref_loader());
579 char* sel = instanceKlass::cast(sel_klass())->name()->as_C_string();
580 const char* loader2 = SystemDictionary::loader_name(sel_loader());
581 size_t buflen = strlen(msg) + strlen(field_name) + strlen(loader1) +
582 strlen(sel) + strlen(loader2) + strlen(failed_type_name);
583 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen);
584 jio_snprintf(buf, buflen, msg, field_name, loader1, sel, loader2,
585 failed_type_name);
586 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf);
587 }
588 }
589 }
591 // return information. note that the klass is set to the actual klass containing the
592 // field, otherwise access of static fields in superclasses will not work.
593 KlassHandle holder (THREAD, fd.field_holder());
594 Symbol* name = fd.name();
595 result.set(holder, name, fd.index(), fd.offset(), fd.field_type(), fd.access_flags());
596 }
599 //------------------------------------------------------------------------------------------------------------------------
600 // Invoke resolution
601 //
602 // Naming conventions:
603 //
604 // resolved_method the specified method (i.e., static receiver specified via constant pool index)
605 // sel_method the selected method (selected via run-time lookup; e.g., based on dynamic receiver class)
606 // resolved_klass the specified klass (i.e., specified via constant pool index)
607 // recv_klass the receiver klass
610 void LinkResolver::resolve_static_call(CallInfo& result, KlassHandle& resolved_klass, Symbol* method_name,
611 Symbol* method_signature, KlassHandle current_klass,
612 bool check_access, bool initialize_class, TRAPS) {
613 methodHandle resolved_method;
614 linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
615 resolved_klass = KlassHandle(THREAD, Klass::cast(resolved_method->method_holder()));
617 // Initialize klass (this should only happen if everything is ok)
618 if (initialize_class && resolved_klass->should_be_initialized()) {
619 resolved_klass->initialize(CHECK);
620 linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
621 }
623 // setup result
624 result.set_static(resolved_klass, resolved_method, CHECK);
625 }
627 // throws linktime exceptions
628 void LinkResolver::linktime_resolve_static_method(methodHandle& resolved_method, KlassHandle resolved_klass,
629 Symbol* method_name, Symbol* method_signature,
630 KlassHandle current_klass, bool check_access, TRAPS) {
632 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
633 assert(resolved_method->name() != vmSymbols::class_initializer_name(), "should have been checked in verifier");
635 // check if static
636 if (!resolved_method->is_static()) {
637 ResourceMark rm(THREAD);
638 char buf[200];
639 jio_snprintf(buf, sizeof(buf), "Expected static method %s", methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
640 resolved_method->name(),
641 resolved_method->signature()));
642 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
643 }
644 }
647 void LinkResolver::resolve_special_call(CallInfo& result, KlassHandle resolved_klass, Symbol* method_name,
648 Symbol* method_signature, KlassHandle current_klass, bool check_access, TRAPS) {
649 methodHandle resolved_method;
650 linktime_resolve_special_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
651 runtime_resolve_special_method(result, resolved_method, resolved_klass, current_klass, check_access, CHECK);
652 }
654 // throws linktime exceptions
655 void LinkResolver::linktime_resolve_special_method(methodHandle& resolved_method, KlassHandle resolved_klass,
656 Symbol* method_name, Symbol* method_signature,
657 KlassHandle current_klass, bool check_access, TRAPS) {
659 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
661 // check if method name is <init>, that it is found in same klass as static type
662 if (resolved_method->name() == vmSymbols::object_initializer_name() &&
663 resolved_method->method_holder() != resolved_klass()) {
664 ResourceMark rm(THREAD);
665 Exceptions::fthrow(
666 THREAD_AND_LOCATION,
667 vmSymbols::java_lang_NoSuchMethodError(),
668 "%s: method %s%s not found",
669 resolved_klass->external_name(),
670 resolved_method->name()->as_C_string(),
671 resolved_method->signature()->as_C_string()
672 );
673 return;
674 }
676 // check if not static
677 if (resolved_method->is_static()) {
678 ResourceMark rm(THREAD);
679 char buf[200];
680 jio_snprintf(buf, sizeof(buf),
681 "Expecting non-static method %s",
682 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
683 resolved_method->name(),
684 resolved_method->signature()));
685 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
686 }
687 }
689 // throws runtime exceptions
690 void LinkResolver::runtime_resolve_special_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass,
691 KlassHandle current_klass, bool check_access, TRAPS) {
693 // resolved method is selected method unless we have an old-style lookup
694 methodHandle sel_method(THREAD, resolved_method());
696 // check if this is an old-style super call and do a new lookup if so
697 { KlassHandle method_klass = KlassHandle(THREAD,
698 resolved_method->method_holder());
700 if (check_access &&
701 // a) check if ACC_SUPER flag is set for the current class
702 current_klass->is_super() &&
703 // b) check if the method class is a superclass of the current class (superclass relation is not reflexive!)
704 current_klass->is_subtype_of(method_klass()) && current_klass() != method_klass() &&
705 // c) check if the method is not <init>
706 resolved_method->name() != vmSymbols::object_initializer_name()) {
707 // Lookup super method
708 KlassHandle super_klass(THREAD, current_klass->super());
709 lookup_instance_method_in_klasses(sel_method, super_klass,
710 resolved_method->name(),
711 resolved_method->signature(), CHECK);
712 // check if found
713 if (sel_method.is_null()) {
714 ResourceMark rm(THREAD);
715 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
716 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
717 resolved_method->name(),
718 resolved_method->signature()));
719 }
720 }
721 }
723 // check if not static
724 if (sel_method->is_static()) {
725 ResourceMark rm(THREAD);
726 char buf[200];
727 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
728 resolved_method->name(),
729 resolved_method->signature()));
730 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
731 }
733 // check if abstract
734 if (sel_method->is_abstract()) {
735 ResourceMark rm(THREAD);
736 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
737 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
738 sel_method->name(),
739 sel_method->signature()));
740 }
742 // setup result
743 result.set_static(resolved_klass, sel_method, CHECK);
744 }
746 void LinkResolver::resolve_virtual_call(CallInfo& result, Handle recv, KlassHandle receiver_klass, KlassHandle resolved_klass,
747 Symbol* method_name, Symbol* method_signature, KlassHandle current_klass,
748 bool check_access, bool check_null_and_abstract, TRAPS) {
749 methodHandle resolved_method;
750 linktime_resolve_virtual_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
751 runtime_resolve_virtual_method(result, resolved_method, resolved_klass, recv, receiver_klass, check_null_and_abstract, CHECK);
752 }
754 // throws linktime exceptions
755 void LinkResolver::linktime_resolve_virtual_method(methodHandle &resolved_method, KlassHandle resolved_klass,
756 Symbol* method_name, Symbol* method_signature,
757 KlassHandle current_klass, bool check_access, TRAPS) {
758 // normal method resolution
759 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
761 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier");
762 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier");
764 // check if not static
765 if (resolved_method->is_static()) {
766 ResourceMark rm(THREAD);
767 char buf[200];
768 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
769 resolved_method->name(),
770 resolved_method->signature()));
771 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
772 }
773 }
775 // throws runtime exceptions
776 void LinkResolver::runtime_resolve_virtual_method(CallInfo& result,
777 methodHandle resolved_method,
778 KlassHandle resolved_klass,
779 Handle recv,
780 KlassHandle recv_klass,
781 bool check_null_and_abstract,
782 TRAPS) {
784 // setup default return values
785 int vtable_index = methodOopDesc::invalid_vtable_index;
786 methodHandle selected_method;
788 assert(recv.is_null() || recv->is_oop(), "receiver is not an oop");
790 // runtime method resolution
791 if (check_null_and_abstract && recv.is_null()) { // check if receiver exists
792 THROW(vmSymbols::java_lang_NullPointerException());
793 }
795 // Virtual methods cannot be resolved before its klass has been linked, for otherwise the methodOop's
796 // has not been rewritten, and the vtable initialized.
797 assert(instanceKlass::cast(resolved_method->method_holder())->is_linked(), "must be linked");
799 // Virtual methods cannot be resolved before its klass has been linked, for otherwise the methodOop's
800 // has not been rewritten, and the vtable initialized. Make sure to do this after the nullcheck, since
801 // a missing receiver might result in a bogus lookup.
802 assert(instanceKlass::cast(resolved_method->method_holder())->is_linked(), "must be linked");
804 // do lookup based on receiver klass using the vtable index
805 if (resolved_method->method_holder()->klass_part()->is_interface()) { // miranda method
806 vtable_index = vtable_index_of_miranda_method(resolved_klass,
807 resolved_method->name(),
808 resolved_method->signature(), CHECK);
809 assert(vtable_index >= 0 , "we should have valid vtable index at this point");
811 instanceKlass* inst = instanceKlass::cast(recv_klass());
812 selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index));
813 } else {
814 // at this point we are sure that resolved_method is virtual and not
815 // a miranda method; therefore, it must have a valid vtable index.
816 vtable_index = resolved_method->vtable_index();
817 // We could get a negative vtable_index for final methods,
818 // because as an optimization they are they are never put in the vtable,
819 // unless they override an existing method.
820 // If we do get a negative, it means the resolved method is the the selected
821 // method, and it can never be changed by an override.
822 if (vtable_index == methodOopDesc::nonvirtual_vtable_index) {
823 assert(resolved_method->can_be_statically_bound(), "cannot override this method");
824 selected_method = resolved_method;
825 } else {
826 // recv_klass might be an arrayKlassOop but all vtables start at
827 // the same place. The cast is to avoid virtual call and assertion.
828 instanceKlass* inst = (instanceKlass*)recv_klass()->klass_part();
829 selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index));
830 }
831 }
833 // check if method exists
834 if (selected_method.is_null()) {
835 ResourceMark rm(THREAD);
836 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
837 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
838 resolved_method->name(),
839 resolved_method->signature()));
840 }
842 // check if abstract
843 if (check_null_and_abstract && selected_method->is_abstract()) {
844 ResourceMark rm(THREAD);
845 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
846 methodOopDesc::name_and_sig_as_C_string(Klass::cast(resolved_klass()),
847 selected_method->name(),
848 selected_method->signature()));
849 }
851 // setup result
852 result.set_virtual(resolved_klass, recv_klass, resolved_method, selected_method, vtable_index, CHECK);
853 }
855 void LinkResolver::resolve_interface_call(CallInfo& result, Handle recv, KlassHandle recv_klass, KlassHandle resolved_klass,
856 Symbol* method_name, Symbol* method_signature, KlassHandle current_klass,
857 bool check_access, bool check_null_and_abstract, TRAPS) {
858 methodHandle resolved_method;
859 linktime_resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
860 runtime_resolve_interface_method(result, resolved_method, resolved_klass, recv, recv_klass, check_null_and_abstract, CHECK);
861 }
863 // throws linktime exceptions
864 void LinkResolver::linktime_resolve_interface_method(methodHandle& resolved_method, KlassHandle resolved_klass, Symbol* method_name,
865 Symbol* method_signature, KlassHandle current_klass, bool check_access, TRAPS) {
866 // normal interface method resolution
867 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK);
869 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier");
870 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier");
871 }
873 // throws runtime exceptions
874 void LinkResolver::runtime_resolve_interface_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass,
875 Handle recv, KlassHandle recv_klass, bool check_null_and_abstract, TRAPS) {
876 // check if receiver exists
877 if (check_null_and_abstract && recv.is_null()) {
878 THROW(vmSymbols::java_lang_NullPointerException());
879 }
881 // check if receiver klass implements the resolved interface
882 if (!recv_klass->is_subtype_of(resolved_klass())) {
883 ResourceMark rm(THREAD);
884 char buf[200];
885 jio_snprintf(buf, sizeof(buf), "Class %s does not implement the requested interface %s",
886 (Klass::cast(recv_klass()))->external_name(),
887 (Klass::cast(resolved_klass()))->external_name());
888 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
889 }
890 // do lookup based on receiver klass
891 methodHandle sel_method;
892 lookup_instance_method_in_klasses(sel_method, recv_klass,
893 resolved_method->name(),
894 resolved_method->signature(), CHECK);
895 // check if method exists
896 if (sel_method.is_null()) {
897 ResourceMark rm(THREAD);
898 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
899 methodOopDesc::name_and_sig_as_C_string(Klass::cast(recv_klass()),
900 resolved_method->name(),
901 resolved_method->signature()));
902 }
903 // check if public
904 if (!sel_method->is_public()) {
905 ResourceMark rm(THREAD);
906 THROW_MSG(vmSymbols::java_lang_IllegalAccessError(),
907 methodOopDesc::name_and_sig_as_C_string(Klass::cast(recv_klass()),
908 sel_method->name(),
909 sel_method->signature()));
910 }
911 // check if abstract
912 if (check_null_and_abstract && sel_method->is_abstract()) {
913 ResourceMark rm(THREAD);
914 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(),
915 methodOopDesc::name_and_sig_as_C_string(Klass::cast(recv_klass()),
916 sel_method->name(),
917 sel_method->signature()));
918 }
919 // setup result
920 result.set_interface(resolved_klass, recv_klass, resolved_method, sel_method, CHECK);
921 }
924 methodHandle LinkResolver::linktime_resolve_interface_method_or_null(
925 KlassHandle resolved_klass,
926 Symbol* method_name,
927 Symbol* method_signature,
928 KlassHandle current_klass,
929 bool check_access) {
930 EXCEPTION_MARK;
931 methodHandle method_result;
932 linktime_resolve_interface_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD);
933 if (HAS_PENDING_EXCEPTION) {
934 CLEAR_PENDING_EXCEPTION;
935 return methodHandle();
936 } else {
937 return method_result;
938 }
939 }
941 methodHandle LinkResolver::linktime_resolve_virtual_method_or_null(
942 KlassHandle resolved_klass,
943 Symbol* method_name,
944 Symbol* method_signature,
945 KlassHandle current_klass,
946 bool check_access) {
947 EXCEPTION_MARK;
948 methodHandle method_result;
949 linktime_resolve_virtual_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD);
950 if (HAS_PENDING_EXCEPTION) {
951 CLEAR_PENDING_EXCEPTION;
952 return methodHandle();
953 } else {
954 return method_result;
955 }
956 }
958 methodHandle LinkResolver::resolve_virtual_call_or_null(
959 KlassHandle receiver_klass,
960 KlassHandle resolved_klass,
961 Symbol* name,
962 Symbol* signature,
963 KlassHandle current_klass) {
964 EXCEPTION_MARK;
965 CallInfo info;
966 resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD);
967 if (HAS_PENDING_EXCEPTION) {
968 CLEAR_PENDING_EXCEPTION;
969 return methodHandle();
970 }
971 return info.selected_method();
972 }
974 methodHandle LinkResolver::resolve_interface_call_or_null(
975 KlassHandle receiver_klass,
976 KlassHandle resolved_klass,
977 Symbol* name,
978 Symbol* signature,
979 KlassHandle current_klass) {
980 EXCEPTION_MARK;
981 CallInfo info;
982 resolve_interface_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD);
983 if (HAS_PENDING_EXCEPTION) {
984 CLEAR_PENDING_EXCEPTION;
985 return methodHandle();
986 }
987 return info.selected_method();
988 }
990 int LinkResolver::resolve_virtual_vtable_index(
991 KlassHandle receiver_klass,
992 KlassHandle resolved_klass,
993 Symbol* name,
994 Symbol* signature,
995 KlassHandle current_klass) {
996 EXCEPTION_MARK;
997 CallInfo info;
998 resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD);
999 if (HAS_PENDING_EXCEPTION) {
1000 CLEAR_PENDING_EXCEPTION;
1001 return methodOopDesc::invalid_vtable_index;
1002 }
1003 return info.vtable_index();
1004 }
1006 methodHandle LinkResolver::resolve_static_call_or_null(
1007 KlassHandle resolved_klass,
1008 Symbol* name,
1009 Symbol* signature,
1010 KlassHandle current_klass) {
1011 EXCEPTION_MARK;
1012 CallInfo info;
1013 resolve_static_call(info, resolved_klass, name, signature, current_klass, true, false, THREAD);
1014 if (HAS_PENDING_EXCEPTION) {
1015 CLEAR_PENDING_EXCEPTION;
1016 return methodHandle();
1017 }
1018 return info.selected_method();
1019 }
1021 methodHandle LinkResolver::resolve_special_call_or_null(KlassHandle resolved_klass, Symbol* name, Symbol* signature,
1022 KlassHandle current_klass) {
1023 EXCEPTION_MARK;
1024 CallInfo info;
1025 resolve_special_call(info, resolved_klass, name, signature, current_klass, true, THREAD);
1026 if (HAS_PENDING_EXCEPTION) {
1027 CLEAR_PENDING_EXCEPTION;
1028 return methodHandle();
1029 }
1030 return info.selected_method();
1031 }
1035 //------------------------------------------------------------------------------------------------------------------------
1036 // ConstantPool entries
1038 void LinkResolver::resolve_invoke(CallInfo& result, Handle recv, constantPoolHandle pool, int index, Bytecodes::Code byte, TRAPS) {
1039 switch (byte) {
1040 case Bytecodes::_invokestatic : resolve_invokestatic (result, pool, index, CHECK); break;
1041 case Bytecodes::_invokespecial : resolve_invokespecial (result, pool, index, CHECK); break;
1042 case Bytecodes::_invokevirtual : resolve_invokevirtual (result, recv, pool, index, CHECK); break;
1043 case Bytecodes::_invokedynamic : resolve_invokedynamic (result, pool, index, CHECK); break;
1044 case Bytecodes::_invokeinterface: resolve_invokeinterface(result, recv, pool, index, CHECK); break;
1045 }
1046 return;
1047 }
1049 void LinkResolver::resolve_pool(KlassHandle& resolved_klass, Symbol*& method_name, Symbol*& method_signature,
1050 KlassHandle& current_klass, constantPoolHandle pool, int index, TRAPS) {
1051 // resolve klass
1052 resolve_klass(resolved_klass, pool, index, CHECK);
1054 // Get name, signature, and static klass
1055 method_name = pool->name_ref_at(index);
1056 method_signature = pool->signature_ref_at(index);
1057 current_klass = KlassHandle(THREAD, pool->pool_holder());
1058 }
1061 void LinkResolver::resolve_invokestatic(CallInfo& result, constantPoolHandle pool, int index, TRAPS) {
1062 KlassHandle resolved_klass;
1063 Symbol* method_name = NULL;
1064 Symbol* method_signature = NULL;
1065 KlassHandle current_klass;
1066 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
1067 resolve_static_call(result, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK);
1068 }
1071 void LinkResolver::resolve_invokespecial(CallInfo& result, constantPoolHandle pool, int index, TRAPS) {
1072 KlassHandle resolved_klass;
1073 Symbol* method_name = NULL;
1074 Symbol* method_signature = NULL;
1075 KlassHandle current_klass;
1076 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
1077 resolve_special_call(result, resolved_klass, method_name, method_signature, current_klass, true, CHECK);
1078 }
1081 void LinkResolver::resolve_invokevirtual(CallInfo& result, Handle recv,
1082 constantPoolHandle pool, int index,
1083 TRAPS) {
1085 KlassHandle resolved_klass;
1086 Symbol* method_name = NULL;
1087 Symbol* method_signature = NULL;
1088 KlassHandle current_klass;
1089 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
1090 KlassHandle recvrKlass (THREAD, recv.is_null() ? (klassOop)NULL : recv->klass());
1091 resolve_virtual_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK);
1092 }
1095 void LinkResolver::resolve_invokeinterface(CallInfo& result, Handle recv, constantPoolHandle pool, int index, TRAPS) {
1096 KlassHandle resolved_klass;
1097 Symbol* method_name = NULL;
1098 Symbol* method_signature = NULL;
1099 KlassHandle current_klass;
1100 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK);
1101 KlassHandle recvrKlass (THREAD, recv.is_null() ? (klassOop)NULL : recv->klass());
1102 resolve_interface_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK);
1103 }
1106 void LinkResolver::resolve_invokedynamic(CallInfo& result, constantPoolHandle pool, int raw_index, TRAPS) {
1107 assert(EnableInvokeDynamic, "");
1109 // This guy is reached from InterpreterRuntime::resolve_invokedynamic.
1111 // At this point, we only need the signature, and can ignore the name.
1112 Symbol* method_signature = pool->signature_ref_at(raw_index); // raw_index works directly
1113 Symbol* method_name = vmSymbols::invokeExact_name();
1114 KlassHandle resolved_klass = SystemDictionaryHandles::MethodHandle_klass();
1116 // JSR 292: this must be an implicitly generated method MethodHandle.invokeExact(*...)
1117 // The extra MH receiver will be inserted into the stack on every call.
1118 methodHandle resolved_method;
1119 KlassHandle current_klass(THREAD, pool->pool_holder());
1120 lookup_implicit_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, THREAD);
1121 if (HAS_PENDING_EXCEPTION) {
1122 if (PENDING_EXCEPTION->is_a(SystemDictionary::BootstrapMethodError_klass())) {
1123 // throw these guys, since they are already wrapped
1124 return;
1125 }
1126 if (!PENDING_EXCEPTION->is_a(SystemDictionary::LinkageError_klass())) {
1127 // intercept only LinkageErrors which might have failed to wrap
1128 return;
1129 }
1130 // See the "Linking Exceptions" section for the invokedynamic instruction in the JVMS.
1131 Handle ex(THREAD, PENDING_EXCEPTION);
1132 CLEAR_PENDING_EXCEPTION;
1133 oop bsme = Klass::cast(SystemDictionary::BootstrapMethodError_klass())->java_mirror();
1134 MethodHandles::raise_exception(Bytecodes::_athrow, ex(), bsme, CHECK);
1135 // java code should not return, but if it does throw out anyway
1136 THROW(vmSymbols::java_lang_InternalError());
1137 }
1138 if (resolved_method.is_null()) {
1139 THROW(vmSymbols::java_lang_InternalError());
1140 }
1141 result.set_dynamic(resolved_method, CHECK);
1142 }
1144 //------------------------------------------------------------------------------------------------------------------------
1145 #ifndef PRODUCT
1147 void FieldAccessInfo::print() {
1148 ResourceMark rm;
1149 tty->print_cr("Field %s@%d", name()->as_C_string(), field_offset());
1150 }
1152 #endif
