Mercurial > hg > graal-jvmci-8
annotate src/share/vm/runtime/javaCalls.cpp @ 1407:09e7826ecf01
Can now call to Java code from the VM.
Need to specify a JAR file with the classes from the Maxine subprojects C1X, CRI, and HotSpotVM in the bootclasspath.
See HotSpotVM/README.txt in the Maxine sources for details.
author | Thomas Wuerthinger <thomas.wuerthinger@gmail.com> |
---|---|
date | Tue, 11 May 2010 19:24:14 +0200 |
parents | b9fba36710f2 |
children | 6223633ce7dd |
rev | line source |
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0 | 1 /* |
579 | 2 * Copyright 1997-2009 Sun Microsystems, Inc. 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_javaCalls.cpp.incl" | |
27 | |
28 // ----------------------------------------------------- | |
29 // Implementation of JavaCallWrapper | |
30 | |
31 JavaCallWrapper::JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS) { | |
32 JavaThread* thread = (JavaThread *)THREAD; | |
33 bool clear_pending_exception = true; | |
34 | |
35 guarantee(thread->is_Java_thread(), "crucial check - the VM thread cannot and must not escape to Java code"); | |
36 assert(!thread->owns_locks(), "must release all locks when leaving VM"); | |
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37 // (tw) may we do this? |
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38 // guarantee(!thread->is_Compiler_thread(), "cannot make java calls from the compiler"); |
0 | 39 _result = result; |
40 | |
41 // Allocate handle block for Java code. This must be done before we change thread_state to _thread_in_Java_or_stub, | |
42 // since it can potentially block. | |
43 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); | |
44 | |
45 // After this, we are official in JavaCode. This needs to be done before we change any of the thread local | |
46 // info, since we cannot find oops before the new information is set up completely. | |
47 ThreadStateTransition::transition(thread, _thread_in_vm, _thread_in_Java); | |
48 | |
49 // Make sure that we handle asynchronous stops and suspends _before_ we clear all thread state | |
50 // in JavaCallWrapper::JavaCallWrapper(). This way, we can decide if we need to do any pd actions | |
51 // to prepare for stop/suspend (flush register windows on sparcs, cache sp, or other state). | |
52 if (thread->has_special_runtime_exit_condition()) { | |
53 thread->handle_special_runtime_exit_condition(); | |
54 if (HAS_PENDING_EXCEPTION) { | |
55 clear_pending_exception = false; | |
56 } | |
57 } | |
58 | |
59 | |
60 // Make sure to set the oop's after the thread transition - since we can block there. No one is GC'ing | |
61 // the JavaCallWrapper before the entry frame is on the stack. | |
62 _callee_method = callee_method(); | |
63 _receiver = receiver(); | |
64 | |
65 #ifdef CHECK_UNHANDLED_OOPS | |
66 THREAD->allow_unhandled_oop(&_callee_method); | |
67 THREAD->allow_unhandled_oop(&_receiver); | |
68 #endif // CHECK_UNHANDLED_OOPS | |
69 | |
70 _thread = (JavaThread *)thread; | |
71 _handles = _thread->active_handles(); // save previous handle block & Java frame linkage | |
72 | |
73 // For the profiler, the last_Java_frame information in thread must always be in | |
74 // legal state. We have no last Java frame if last_Java_sp == NULL so | |
75 // the valid transition is to clear _last_Java_sp and then reset the rest of | |
76 // the (platform specific) state. | |
77 | |
78 _anchor.copy(_thread->frame_anchor()); | |
79 _thread->frame_anchor()->clear(); | |
80 | |
81 debug_only(_thread->inc_java_call_counter()); | |
82 _thread->set_active_handles(new_handles); // install new handle block and reset Java frame linkage | |
83 | |
84 assert (_thread->thread_state() != _thread_in_native, "cannot set native pc to NULL"); | |
85 | |
86 // clear any pending exception in thread (native calls start with no exception pending) | |
87 if(clear_pending_exception) { | |
88 _thread->clear_pending_exception(); | |
89 } | |
90 | |
91 if (_anchor.last_Java_sp() == NULL) { | |
92 _thread->record_base_of_stack_pointer(); | |
93 } | |
94 } | |
95 | |
96 | |
97 JavaCallWrapper::~JavaCallWrapper() { | |
98 assert(_thread == JavaThread::current(), "must still be the same thread"); | |
99 | |
100 // restore previous handle block & Java frame linkage | |
101 JNIHandleBlock *_old_handles = _thread->active_handles(); | |
102 _thread->set_active_handles(_handles); | |
103 | |
104 _thread->frame_anchor()->zap(); | |
105 | |
106 debug_only(_thread->dec_java_call_counter()); | |
107 | |
108 if (_anchor.last_Java_sp() == NULL) { | |
109 _thread->set_base_of_stack_pointer(NULL); | |
110 } | |
111 | |
112 | |
113 // Old thread-local info. has been restored. We are not back in the VM. | |
114 ThreadStateTransition::transition_from_java(_thread, _thread_in_vm); | |
115 | |
116 // State has been restored now make the anchor frame visible for the profiler. | |
117 // Do this after the transition because this allows us to put an assert | |
118 // the Java->vm transition which checks to see that stack is not walkable | |
119 // on sparc/ia64 which will catch violations of the reseting of last_Java_frame | |
120 // invariants (i.e. _flags always cleared on return to Java) | |
121 | |
122 _thread->frame_anchor()->copy(&_anchor); | |
123 | |
124 // Release handles after we are marked as being inside the VM again, since this | |
125 // operation might block | |
126 JNIHandleBlock::release_block(_old_handles, _thread); | |
127 } | |
128 | |
129 | |
130 void JavaCallWrapper::oops_do(OopClosure* f) { | |
131 f->do_oop((oop*)&_callee_method); | |
132 f->do_oop((oop*)&_receiver); | |
133 handles()->oops_do(f); | |
134 } | |
135 | |
136 | |
137 // Helper methods | |
138 static BasicType runtime_type_from(JavaValue* result) { | |
139 switch (result->get_type()) { | |
140 case T_BOOLEAN: // fall through | |
141 case T_CHAR : // fall through | |
142 case T_SHORT : // fall through | |
143 case T_INT : // fall through | |
144 #ifndef _LP64 | |
145 case T_OBJECT : // fall through | |
146 case T_ARRAY : // fall through | |
147 #endif | |
148 case T_BYTE : // fall through | |
149 case T_VOID : return T_INT; | |
150 case T_LONG : return T_LONG; | |
151 case T_FLOAT : return T_FLOAT; | |
152 case T_DOUBLE : return T_DOUBLE; | |
153 #ifdef _LP64 | |
154 case T_ARRAY : // fall through | |
155 case T_OBJECT: return T_OBJECT; | |
156 #endif | |
157 } | |
158 ShouldNotReachHere(); | |
159 return T_ILLEGAL; | |
160 } | |
161 | |
162 // ===== object constructor calls ===== | |
163 | |
164 void JavaCalls::call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS) { | |
165 assert(method->name() == vmSymbols::object_initializer_name(), "Should only be called for default constructor"); | |
166 assert(method->signature() == vmSymbols::void_method_signature(), "Should only be called for default constructor"); | |
167 | |
168 instanceKlass* ik = instanceKlass::cast(method->method_holder()); | |
169 if (ik->is_initialized() && ik->has_vanilla_constructor()) { | |
170 // safe to skip constructor call | |
171 } else { | |
172 static JavaValue result(T_VOID); | |
173 JavaCallArguments args(receiver); | |
174 call(&result, method, &args, CHECK); | |
175 } | |
176 } | |
177 | |
178 // ============ Virtual calls ============ | |
179 | |
180 void JavaCalls::call_virtual(JavaValue* result, KlassHandle spec_klass, symbolHandle name, symbolHandle signature, JavaCallArguments* args, TRAPS) { | |
181 CallInfo callinfo; | |
182 Handle receiver = args->receiver(); | |
183 KlassHandle recvrKlass(THREAD, receiver.is_null() ? (klassOop)NULL : receiver->klass()); | |
184 LinkResolver::resolve_virtual_call( | |
185 callinfo, receiver, recvrKlass, spec_klass, name, signature, | |
186 KlassHandle(), false, true, CHECK); | |
187 methodHandle method = callinfo.selected_method(); | |
188 assert(method.not_null(), "should have thrown exception"); | |
189 | |
190 // Invoke the method | |
191 JavaCalls::call(result, method, args, CHECK); | |
192 } | |
193 | |
194 | |
195 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, symbolHandle name, symbolHandle signature, TRAPS) { | |
196 JavaCallArguments args(receiver); // One oop argument | |
197 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
198 } | |
199 | |
200 | |
201 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, symbolHandle name, symbolHandle signature, Handle arg1, TRAPS) { | |
202 JavaCallArguments args(receiver); // One oop argument | |
203 args.push_oop(arg1); | |
204 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
205 } | |
206 | |
207 | |
208 | |
209 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, symbolHandle name, symbolHandle signature, Handle arg1, Handle arg2, TRAPS) { | |
210 JavaCallArguments args(receiver); // One oop argument | |
211 args.push_oop(arg1); | |
212 args.push_oop(arg2); | |
213 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
214 } | |
215 | |
216 | |
217 // ============ Special calls ============ | |
218 | |
219 void JavaCalls::call_special(JavaValue* result, KlassHandle klass, symbolHandle name, symbolHandle signature, JavaCallArguments* args, TRAPS) { | |
220 CallInfo callinfo; | |
221 LinkResolver::resolve_special_call(callinfo, klass, name, signature, KlassHandle(), false, CHECK); | |
222 methodHandle method = callinfo.selected_method(); | |
223 assert(method.not_null(), "should have thrown exception"); | |
224 | |
225 // Invoke the method | |
226 JavaCalls::call(result, method, args, CHECK); | |
227 } | |
228 | |
229 | |
230 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) { | |
231 JavaCallArguments args(receiver); // One oop argument | |
232 call_special(result, klass, name, signature, &args, CHECK); | |
233 } | |
234 | |
235 | |
236 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, symbolHandle name, symbolHandle signature, Handle arg1, TRAPS) { | |
237 JavaCallArguments args(receiver); // One oop argument | |
238 args.push_oop(arg1); | |
239 call_special(result, klass, name, signature, &args, CHECK); | |
240 } | |
241 | |
242 | |
243 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, symbolHandle name, symbolHandle signature, Handle arg1, Handle arg2, TRAPS) { | |
244 JavaCallArguments args(receiver); // One oop argument | |
245 args.push_oop(arg1); | |
246 args.push_oop(arg2); | |
247 call_special(result, klass, name, signature, &args, CHECK); | |
248 } | |
249 | |
250 | |
251 // ============ Static calls ============ | |
252 | |
253 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, symbolHandle name, symbolHandle signature, JavaCallArguments* args, TRAPS) { | |
254 CallInfo callinfo; | |
255 LinkResolver::resolve_static_call(callinfo, klass, name, signature, KlassHandle(), false, true, CHECK); | |
256 methodHandle method = callinfo.selected_method(); | |
257 assert(method.not_null(), "should have thrown exception"); | |
258 | |
259 // Invoke the method | |
260 JavaCalls::call(result, method, args, CHECK); | |
261 } | |
262 | |
263 | |
264 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS) { | |
265 JavaCallArguments args; // No argument | |
266 call_static(result, klass, name, signature, &args, CHECK); | |
267 } | |
268 | |
269 | |
270 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, symbolHandle name, symbolHandle signature, Handle arg1, TRAPS) { | |
271 JavaCallArguments args(arg1); // One oop argument | |
272 call_static(result, klass, name, signature, &args, CHECK); | |
273 } | |
274 | |
275 | |
276 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, symbolHandle name, symbolHandle signature, Handle arg1, Handle arg2, TRAPS) { | |
277 JavaCallArguments args; // One oop argument | |
278 args.push_oop(arg1); | |
279 args.push_oop(arg2); | |
280 call_static(result, klass, name, signature, &args, CHECK); | |
281 } | |
282 | |
283 | |
284 // ------------------------------------------------- | |
285 // Implementation of JavaCalls (low level) | |
286 | |
287 | |
288 void JavaCalls::call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS) { | |
289 // Check if we need to wrap a potential OS exception handler around thread | |
290 // This is used for e.g. Win32 structured exception handlers | |
291 assert(THREAD->is_Java_thread(), "only JavaThreads can make JavaCalls"); | |
292 // Need to wrap each and everytime, since there might be native code down the | |
293 // stack that has installed its own exception handlers | |
294 os::os_exception_wrapper(call_helper, result, &method, args, THREAD); | |
295 } | |
296 | |
297 void JavaCalls::call_helper(JavaValue* result, methodHandle* m, JavaCallArguments* args, TRAPS) { | |
298 methodHandle method = *m; | |
299 JavaThread* thread = (JavaThread*)THREAD; | |
300 assert(thread->is_Java_thread(), "must be called by a java thread"); | |
301 assert(method.not_null(), "must have a method to call"); | |
302 assert(!SafepointSynchronize::is_at_safepoint(), "call to Java code during VM operation"); | |
303 assert(!thread->handle_area()->no_handle_mark_active(), "cannot call out to Java here"); | |
304 | |
305 | |
306 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
307 | |
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308 // Verify the arguments |
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309 |
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310 if (CheckJNICalls) { |
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311 args->verify(method, result->get_type(), thread); |
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312 } |
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313 else debug_only(args->verify(method, result->get_type(), thread)); |
0 | 314 |
315 // Ignore call if method is empty | |
316 if (method->is_empty_method()) { | |
317 assert(result->get_type() == T_VOID, "an empty method must return a void value"); | |
318 return; | |
319 } | |
320 | |
321 | |
322 #ifdef ASSERT | |
323 { klassOop holder = method->method_holder(); | |
324 // A klass might not be initialized since JavaCall's might be used during the executing of | |
325 // the <clinit>. For example, a Thread.start might start executing on an object that is | |
326 // not fully initialized! (bad Java programming style) | |
327 assert(instanceKlass::cast(holder)->is_linked(), "rewritting must have taken place"); | |
328 } | |
329 #endif | |
330 | |
331 | |
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Can now call to Java code from the VM.
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parents:
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332 // (tw) may we do this? |
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Can now call to Java code from the VM.
Thomas Wuerthinger <thomas.wuerthinger@gmail.com>
parents:
702
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333 //assert(!thread->is_Compiler_thread(), "cannot compile from the compiler"); |
0 | 334 if (CompilationPolicy::mustBeCompiled(method)) { |
335 CompileBroker::compile_method(method, InvocationEntryBci, | |
336 methodHandle(), 0, "mustBeCompiled", CHECK); | |
337 } | |
338 | |
339 // Since the call stub sets up like the interpreter we call the from_interpreted_entry | |
340 // so we can go compiled via a i2c. Otherwise initial entry method will always | |
341 // run interpreted. | |
342 address entry_point = method->from_interpreted_entry(); | |
343 if (JvmtiExport::can_post_interpreter_events() && thread->is_interp_only_mode()) { | |
344 entry_point = method->interpreter_entry(); | |
345 } | |
346 | |
347 // Figure out if the result value is an oop or not (Note: This is a different value | |
348 // than result_type. result_type will be T_INT of oops. (it is about size) | |
349 BasicType result_type = runtime_type_from(result); | |
350 bool oop_result_flag = (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY); | |
351 | |
352 // NOTE: if we move the computation of the result_val_address inside | |
353 // the call to call_stub, the optimizer produces wrong code. | |
354 intptr_t* result_val_address = (intptr_t*)(result->get_value_addr()); | |
355 | |
356 // Find receiver | |
357 Handle receiver = (!method->is_static()) ? args->receiver() : Handle(); | |
358 | |
359 // When we reenter Java, we need to reenable the yellow zone which | |
360 // might already be disabled when we are in VM. | |
361 if (thread->stack_yellow_zone_disabled()) { | |
362 thread->reguard_stack(); | |
363 } | |
364 | |
365 // Check that there are shadow pages available before changing thread state | |
366 // to Java | |
367 if (!os::stack_shadow_pages_available(THREAD, method)) { | |
368 // Throw stack overflow exception with preinitialized exception. | |
369 Exceptions::throw_stack_overflow_exception(THREAD, __FILE__, __LINE__); | |
370 return; | |
371 } else { | |
372 // Touch pages checked if the OS needs them to be touched to be mapped. | |
373 os::bang_stack_shadow_pages(); | |
374 } | |
375 | |
376 // do call | |
377 { JavaCallWrapper link(method, receiver, result, CHECK); | |
378 { HandleMark hm(thread); // HandleMark used by HandleMarkCleaner | |
379 | |
380 StubRoutines::call_stub()( | |
381 (address)&link, | |
382 // (intptr_t*)&(result->_value), // see NOTE above (compiler problem) | |
383 result_val_address, // see NOTE above (compiler problem) | |
384 result_type, | |
385 method(), | |
386 entry_point, | |
387 args->parameters(), | |
388 args->size_of_parameters(), | |
389 CHECK | |
390 ); | |
391 | |
392 result = link.result(); // circumvent MS C++ 5.0 compiler bug (result is clobbered across call) | |
393 // Preserve oop return value across possible gc points | |
394 if (oop_result_flag) { | |
395 thread->set_vm_result((oop) result->get_jobject()); | |
396 } | |
397 } | |
398 } // Exit JavaCallWrapper (can block - potential return oop must be preserved) | |
399 | |
400 // Check if a thread stop or suspend should be executed | |
401 // The following assert was not realistic. Thread.stop can set that bit at any moment. | |
402 //assert(!thread->has_special_runtime_exit_condition(), "no async. exceptions should be installed"); | |
403 | |
404 // Restore possible oop return | |
405 if (oop_result_flag) { | |
406 result->set_jobject((jobject)thread->vm_result()); | |
407 thread->set_vm_result(NULL); | |
408 } | |
409 } | |
410 | |
411 | |
412 //-------------------------------------------------------------------------------------- | |
413 // Implementation of JavaCallArguments | |
414 | |
415 intptr_t* JavaCallArguments::parameters() { | |
416 // First convert all handles to oops | |
417 for(int i = 0; i < _size; i++) { | |
418 if (_is_oop[i]) { | |
419 // Handle conversion | |
420 _value[i] = (intptr_t)Handle::raw_resolve((oop *)_value[i]); | |
421 } | |
422 // The parameters are moved to the parameters array to include the tags. | |
423 if (TaggedStackInterpreter) { | |
424 // Tags are interspersed with arguments. Tags are first. | |
425 int tagged_index = i*2; | |
426 _parameters[tagged_index] = _is_oop[i] ? frame::TagReference : | |
427 frame::TagValue; | |
428 _parameters[tagged_index+1] = _value[i]; | |
429 } | |
430 } | |
431 // Return argument vector | |
432 return TaggedStackInterpreter ? _parameters : _value; | |
433 } | |
434 | |
435 | |
436 class SignatureChekker : public SignatureIterator { | |
437 private: | |
438 bool *_is_oop; | |
439 int _pos; | |
440 BasicType _return_type; | |
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441 intptr_t* _value; |
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442 Thread* _thread; |
0 | 443 |
444 public: | |
445 bool _is_return; | |
446 | |
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447 SignatureChekker(symbolHandle signature, BasicType return_type, bool is_static, bool* is_oop, intptr_t* value, Thread* thread) : SignatureIterator(signature) { |
0 | 448 _is_oop = is_oop; |
449 _is_return = false; | |
450 _return_type = return_type; | |
451 _pos = 0; | |
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452 _value = value; |
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453 _thread = thread; |
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454 |
0 | 455 if (!is_static) { |
456 check_value(true); // Receiver must be an oop | |
457 } | |
458 } | |
459 | |
460 void check_value(bool type) { | |
461 guarantee(_is_oop[_pos++] == type, "signature does not match pushed arguments"); | |
462 } | |
463 | |
464 void check_doing_return(bool state) { _is_return = state; } | |
465 | |
466 void check_return_type(BasicType t) { | |
467 guarantee(_is_return && t == _return_type, "return type does not match"); | |
468 } | |
469 | |
470 void check_int(BasicType t) { | |
471 if (_is_return) { | |
472 check_return_type(t); | |
473 return; | |
474 } | |
475 check_value(false); | |
476 } | |
477 | |
478 void check_double(BasicType t) { check_long(t); } | |
479 | |
480 void check_long(BasicType t) { | |
481 if (_is_return) { | |
482 check_return_type(t); | |
483 return; | |
484 } | |
485 | |
486 check_value(false); | |
487 check_value(false); | |
488 } | |
489 | |
490 void check_obj(BasicType t) { | |
491 if (_is_return) { | |
492 check_return_type(t); | |
493 return; | |
494 } | |
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495 |
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496 // verify handle and the oop pointed to by handle |
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497 int p = _pos; |
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498 bool bad = false; |
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499 // If argument is oop |
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500 if (_is_oop[p]) { |
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501 intptr_t v = _value[p]; |
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502 if (v != 0 ) { |
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503 size_t t = (size_t)v; |
498
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504 bad = (t < (size_t)os::vm_page_size() ) || !Handle::raw_resolve((oop *)v)->is_oop_or_null(true); |
465
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505 if (CheckJNICalls && bad) { |
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506 ReportJNIFatalError((JavaThread*)_thread, "Bad JNI oop argument"); |
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507 } |
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508 } |
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509 // for the regular debug case. |
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510 assert(!bad, "Bad JNI oop argument"); |
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511 } |
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512 |
0 | 513 check_value(true); |
514 } | |
515 | |
516 void do_bool() { check_int(T_BOOLEAN); } | |
517 void do_char() { check_int(T_CHAR); } | |
518 void do_float() { check_int(T_FLOAT); } | |
519 void do_double() { check_double(T_DOUBLE); } | |
520 void do_byte() { check_int(T_BYTE); } | |
521 void do_short() { check_int(T_SHORT); } | |
522 void do_int() { check_int(T_INT); } | |
523 void do_long() { check_long(T_LONG); } | |
524 void do_void() { check_return_type(T_VOID); } | |
525 void do_object(int begin, int end) { check_obj(T_OBJECT); } | |
526 void do_array(int begin, int end) { check_obj(T_OBJECT); } | |
527 }; | |
528 | |
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529 |
0 | 530 void JavaCallArguments::verify(methodHandle method, BasicType return_type, |
531 Thread *thread) { | |
532 guarantee(method->size_of_parameters() == size_of_parameters(), "wrong no. of arguments pushed"); | |
533 | |
534 // Treat T_OBJECT and T_ARRAY as the same | |
535 if (return_type == T_ARRAY) return_type = T_OBJECT; | |
536 | |
537 // Check that oop information is correct | |
538 symbolHandle signature (thread, method->signature()); | |
539 | |
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540 SignatureChekker sc(signature, return_type, method->is_static(),_is_oop, _value, thread); |
0 | 541 sc.iterate_parameters(); |
542 sc.check_doing_return(true); | |
543 sc.iterate_returntype(); | |
544 } | |
545 |