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annotate src/share/vm/runtime/javaCalls.cpp @ 3763:e66f38dd58a9
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author | ysr |
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date | Wed, 08 Jun 2011 08:39:53 -0700 |
parents | 01147d8aac1d |
children | be4ca325525a 43f9d800f276 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/systemDictionary.hpp" | |
27 #include "classfile/vmSymbols.hpp" | |
28 #include "code/nmethod.hpp" | |
29 #include "compiler/compileBroker.hpp" | |
30 #include "interpreter/interpreter.hpp" | |
31 #include "interpreter/linkResolver.hpp" | |
32 #include "memory/universe.inline.hpp" | |
33 #include "oops/oop.inline.hpp" | |
34 #include "prims/jniCheck.hpp" | |
35 #include "runtime/compilationPolicy.hpp" | |
36 #include "runtime/handles.inline.hpp" | |
37 #include "runtime/interfaceSupport.hpp" | |
38 #include "runtime/javaCalls.hpp" | |
39 #include "runtime/mutexLocker.hpp" | |
40 #include "runtime/signature.hpp" | |
41 #include "runtime/stubRoutines.hpp" | |
42 #ifdef TARGET_OS_FAMILY_linux | |
43 # include "thread_linux.inline.hpp" | |
44 #endif | |
45 #ifdef TARGET_OS_FAMILY_solaris | |
46 # include "thread_solaris.inline.hpp" | |
47 #endif | |
48 #ifdef TARGET_OS_FAMILY_windows | |
49 # include "thread_windows.inline.hpp" | |
50 #endif | |
0 | 51 |
52 // ----------------------------------------------------- | |
53 // Implementation of JavaCallWrapper | |
54 | |
55 JavaCallWrapper::JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS) { | |
56 JavaThread* thread = (JavaThread *)THREAD; | |
57 bool clear_pending_exception = true; | |
58 | |
59 guarantee(thread->is_Java_thread(), "crucial check - the VM thread cannot and must not escape to Java code"); | |
60 assert(!thread->owns_locks(), "must release all locks when leaving VM"); | |
61 guarantee(!thread->is_Compiler_thread(), "cannot make java calls from the compiler"); | |
62 _result = result; | |
63 | |
64 // Allocate handle block for Java code. This must be done before we change thread_state to _thread_in_Java_or_stub, | |
65 // since it can potentially block. | |
66 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); | |
67 | |
68 // After this, we are official in JavaCode. This needs to be done before we change any of the thread local | |
69 // info, since we cannot find oops before the new information is set up completely. | |
70 ThreadStateTransition::transition(thread, _thread_in_vm, _thread_in_Java); | |
71 | |
72 // Make sure that we handle asynchronous stops and suspends _before_ we clear all thread state | |
73 // in JavaCallWrapper::JavaCallWrapper(). This way, we can decide if we need to do any pd actions | |
74 // to prepare for stop/suspend (flush register windows on sparcs, cache sp, or other state). | |
75 if (thread->has_special_runtime_exit_condition()) { | |
76 thread->handle_special_runtime_exit_condition(); | |
77 if (HAS_PENDING_EXCEPTION) { | |
78 clear_pending_exception = false; | |
79 } | |
80 } | |
81 | |
82 | |
83 // Make sure to set the oop's after the thread transition - since we can block there. No one is GC'ing | |
84 // the JavaCallWrapper before the entry frame is on the stack. | |
85 _callee_method = callee_method(); | |
86 _receiver = receiver(); | |
87 | |
88 #ifdef CHECK_UNHANDLED_OOPS | |
89 THREAD->allow_unhandled_oop(&_callee_method); | |
90 THREAD->allow_unhandled_oop(&_receiver); | |
91 #endif // CHECK_UNHANDLED_OOPS | |
92 | |
93 _thread = (JavaThread *)thread; | |
94 _handles = _thread->active_handles(); // save previous handle block & Java frame linkage | |
95 | |
96 // For the profiler, the last_Java_frame information in thread must always be in | |
97 // legal state. We have no last Java frame if last_Java_sp == NULL so | |
98 // the valid transition is to clear _last_Java_sp and then reset the rest of | |
99 // the (platform specific) state. | |
100 | |
101 _anchor.copy(_thread->frame_anchor()); | |
102 _thread->frame_anchor()->clear(); | |
103 | |
104 debug_only(_thread->inc_java_call_counter()); | |
105 _thread->set_active_handles(new_handles); // install new handle block and reset Java frame linkage | |
106 | |
107 assert (_thread->thread_state() != _thread_in_native, "cannot set native pc to NULL"); | |
108 | |
109 // clear any pending exception in thread (native calls start with no exception pending) | |
110 if(clear_pending_exception) { | |
111 _thread->clear_pending_exception(); | |
112 } | |
113 | |
114 if (_anchor.last_Java_sp() == NULL) { | |
115 _thread->record_base_of_stack_pointer(); | |
116 } | |
117 } | |
118 | |
119 | |
120 JavaCallWrapper::~JavaCallWrapper() { | |
121 assert(_thread == JavaThread::current(), "must still be the same thread"); | |
122 | |
123 // restore previous handle block & Java frame linkage | |
124 JNIHandleBlock *_old_handles = _thread->active_handles(); | |
125 _thread->set_active_handles(_handles); | |
126 | |
127 _thread->frame_anchor()->zap(); | |
128 | |
129 debug_only(_thread->dec_java_call_counter()); | |
130 | |
131 if (_anchor.last_Java_sp() == NULL) { | |
132 _thread->set_base_of_stack_pointer(NULL); | |
133 } | |
134 | |
135 | |
136 // Old thread-local info. has been restored. We are not back in the VM. | |
137 ThreadStateTransition::transition_from_java(_thread, _thread_in_vm); | |
138 | |
139 // State has been restored now make the anchor frame visible for the profiler. | |
140 // Do this after the transition because this allows us to put an assert | |
141 // the Java->vm transition which checks to see that stack is not walkable | |
142 // on sparc/ia64 which will catch violations of the reseting of last_Java_frame | |
143 // invariants (i.e. _flags always cleared on return to Java) | |
144 | |
145 _thread->frame_anchor()->copy(&_anchor); | |
146 | |
147 // Release handles after we are marked as being inside the VM again, since this | |
148 // operation might block | |
149 JNIHandleBlock::release_block(_old_handles, _thread); | |
150 } | |
151 | |
152 | |
153 void JavaCallWrapper::oops_do(OopClosure* f) { | |
154 f->do_oop((oop*)&_callee_method); | |
155 f->do_oop((oop*)&_receiver); | |
156 handles()->oops_do(f); | |
157 } | |
158 | |
159 | |
160 // Helper methods | |
161 static BasicType runtime_type_from(JavaValue* result) { | |
162 switch (result->get_type()) { | |
163 case T_BOOLEAN: // fall through | |
164 case T_CHAR : // fall through | |
165 case T_SHORT : // fall through | |
166 case T_INT : // fall through | |
167 #ifndef _LP64 | |
168 case T_OBJECT : // fall through | |
169 case T_ARRAY : // fall through | |
170 #endif | |
171 case T_BYTE : // fall through | |
172 case T_VOID : return T_INT; | |
173 case T_LONG : return T_LONG; | |
174 case T_FLOAT : return T_FLOAT; | |
175 case T_DOUBLE : return T_DOUBLE; | |
176 #ifdef _LP64 | |
177 case T_ARRAY : // fall through | |
178 case T_OBJECT: return T_OBJECT; | |
179 #endif | |
180 } | |
181 ShouldNotReachHere(); | |
182 return T_ILLEGAL; | |
183 } | |
184 | |
185 // ===== object constructor calls ===== | |
186 | |
187 void JavaCalls::call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS) { | |
188 assert(method->name() == vmSymbols::object_initializer_name(), "Should only be called for default constructor"); | |
189 assert(method->signature() == vmSymbols::void_method_signature(), "Should only be called for default constructor"); | |
190 | |
191 instanceKlass* ik = instanceKlass::cast(method->method_holder()); | |
192 if (ik->is_initialized() && ik->has_vanilla_constructor()) { | |
193 // safe to skip constructor call | |
194 } else { | |
195 static JavaValue result(T_VOID); | |
196 JavaCallArguments args(receiver); | |
197 call(&result, method, &args, CHECK); | |
198 } | |
199 } | |
200 | |
201 // ============ Virtual calls ============ | |
202 | |
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203 void JavaCalls::call_virtual(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 204 CallInfo callinfo; |
205 Handle receiver = args->receiver(); | |
206 KlassHandle recvrKlass(THREAD, receiver.is_null() ? (klassOop)NULL : receiver->klass()); | |
207 LinkResolver::resolve_virtual_call( | |
208 callinfo, receiver, recvrKlass, spec_klass, name, signature, | |
209 KlassHandle(), false, true, CHECK); | |
210 methodHandle method = callinfo.selected_method(); | |
211 assert(method.not_null(), "should have thrown exception"); | |
212 | |
213 // Invoke the method | |
214 JavaCalls::call(result, method, args, CHECK); | |
215 } | |
216 | |
217 | |
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218 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 219 JavaCallArguments args(receiver); // One oop argument |
220 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
221 } | |
222 | |
223 | |
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224 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 225 JavaCallArguments args(receiver); // One oop argument |
226 args.push_oop(arg1); | |
227 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
228 } | |
229 | |
230 | |
231 | |
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232 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 233 JavaCallArguments args(receiver); // One oop argument |
234 args.push_oop(arg1); | |
235 args.push_oop(arg2); | |
236 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
237 } | |
238 | |
239 | |
240 // ============ Special calls ============ | |
241 | |
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242 void JavaCalls::call_special(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 243 CallInfo callinfo; |
244 LinkResolver::resolve_special_call(callinfo, klass, name, signature, KlassHandle(), false, CHECK); | |
245 methodHandle method = callinfo.selected_method(); | |
246 assert(method.not_null(), "should have thrown exception"); | |
247 | |
248 // Invoke the method | |
249 JavaCalls::call(result, method, args, CHECK); | |
250 } | |
251 | |
252 | |
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253 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 254 JavaCallArguments args(receiver); // One oop argument |
255 call_special(result, klass, name, signature, &args, CHECK); | |
256 } | |
257 | |
258 | |
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259 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 260 JavaCallArguments args(receiver); // One oop argument |
261 args.push_oop(arg1); | |
262 call_special(result, klass, name, signature, &args, CHECK); | |
263 } | |
264 | |
265 | |
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266 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 267 JavaCallArguments args(receiver); // One oop argument |
268 args.push_oop(arg1); | |
269 args.push_oop(arg2); | |
270 call_special(result, klass, name, signature, &args, CHECK); | |
271 } | |
272 | |
273 | |
274 // ============ Static calls ============ | |
275 | |
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276 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 277 CallInfo callinfo; |
278 LinkResolver::resolve_static_call(callinfo, klass, name, signature, KlassHandle(), false, true, CHECK); | |
279 methodHandle method = callinfo.selected_method(); | |
280 assert(method.not_null(), "should have thrown exception"); | |
281 | |
282 // Invoke the method | |
283 JavaCalls::call(result, method, args, CHECK); | |
284 } | |
285 | |
286 | |
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287 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 288 JavaCallArguments args; // No argument |
289 call_static(result, klass, name, signature, &args, CHECK); | |
290 } | |
291 | |
292 | |
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293 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 294 JavaCallArguments args(arg1); // One oop argument |
295 call_static(result, klass, name, signature, &args, CHECK); | |
296 } | |
297 | |
298 | |
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299 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 300 JavaCallArguments args; // One oop argument |
301 args.push_oop(arg1); | |
302 args.push_oop(arg2); | |
303 call_static(result, klass, name, signature, &args, CHECK); | |
304 } | |
305 | |
306 | |
307 // ------------------------------------------------- | |
308 // Implementation of JavaCalls (low level) | |
309 | |
310 | |
311 void JavaCalls::call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS) { | |
312 // Check if we need to wrap a potential OS exception handler around thread | |
313 // This is used for e.g. Win32 structured exception handlers | |
314 assert(THREAD->is_Java_thread(), "only JavaThreads can make JavaCalls"); | |
315 // Need to wrap each and everytime, since there might be native code down the | |
316 // stack that has installed its own exception handlers | |
317 os::os_exception_wrapper(call_helper, result, &method, args, THREAD); | |
318 } | |
319 | |
320 void JavaCalls::call_helper(JavaValue* result, methodHandle* m, JavaCallArguments* args, TRAPS) { | |
321 methodHandle method = *m; | |
322 JavaThread* thread = (JavaThread*)THREAD; | |
323 assert(thread->is_Java_thread(), "must be called by a java thread"); | |
324 assert(method.not_null(), "must have a method to call"); | |
325 assert(!SafepointSynchronize::is_at_safepoint(), "call to Java code during VM operation"); | |
326 assert(!thread->handle_area()->no_handle_mark_active(), "cannot call out to Java here"); | |
327 | |
328 | |
329 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
330 | |
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331 // Verify the arguments |
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332 |
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333 if (CheckJNICalls) { |
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334 args->verify(method, result->get_type(), thread); |
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335 } |
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336 else debug_only(args->verify(method, result->get_type(), thread)); |
0 | 337 |
338 // Ignore call if method is empty | |
339 if (method->is_empty_method()) { | |
340 assert(result->get_type() == T_VOID, "an empty method must return a void value"); | |
341 return; | |
342 } | |
343 | |
344 | |
345 #ifdef ASSERT | |
346 { klassOop holder = method->method_holder(); | |
347 // A klass might not be initialized since JavaCall's might be used during the executing of | |
348 // the <clinit>. For example, a Thread.start might start executing on an object that is | |
349 // not fully initialized! (bad Java programming style) | |
350 assert(instanceKlass::cast(holder)->is_linked(), "rewritting must have taken place"); | |
351 } | |
352 #endif | |
353 | |
354 | |
355 assert(!thread->is_Compiler_thread(), "cannot compile from the compiler"); | |
1783 | 356 if (CompilationPolicy::must_be_compiled(method)) { |
0 | 357 CompileBroker::compile_method(method, InvocationEntryBci, |
1783 | 358 CompLevel_initial_compile, |
359 methodHandle(), 0, "must_be_compiled", CHECK); | |
0 | 360 } |
361 | |
362 // Since the call stub sets up like the interpreter we call the from_interpreted_entry | |
363 // so we can go compiled via a i2c. Otherwise initial entry method will always | |
364 // run interpreted. | |
365 address entry_point = method->from_interpreted_entry(); | |
366 if (JvmtiExport::can_post_interpreter_events() && thread->is_interp_only_mode()) { | |
367 entry_point = method->interpreter_entry(); | |
368 } | |
369 | |
370 // Figure out if the result value is an oop or not (Note: This is a different value | |
371 // than result_type. result_type will be T_INT of oops. (it is about size) | |
372 BasicType result_type = runtime_type_from(result); | |
373 bool oop_result_flag = (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY); | |
374 | |
375 // NOTE: if we move the computation of the result_val_address inside | |
376 // the call to call_stub, the optimizer produces wrong code. | |
377 intptr_t* result_val_address = (intptr_t*)(result->get_value_addr()); | |
378 | |
379 // Find receiver | |
380 Handle receiver = (!method->is_static()) ? args->receiver() : Handle(); | |
381 | |
382 // When we reenter Java, we need to reenable the yellow zone which | |
383 // might already be disabled when we are in VM. | |
384 if (thread->stack_yellow_zone_disabled()) { | |
385 thread->reguard_stack(); | |
386 } | |
387 | |
388 // Check that there are shadow pages available before changing thread state | |
389 // to Java | |
390 if (!os::stack_shadow_pages_available(THREAD, method)) { | |
391 // Throw stack overflow exception with preinitialized exception. | |
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392 Exceptions::throw_stack_overflow_exception(THREAD, __FILE__, __LINE__, method); |
0 | 393 return; |
394 } else { | |
395 // Touch pages checked if the OS needs them to be touched to be mapped. | |
396 os::bang_stack_shadow_pages(); | |
397 } | |
398 | |
399 // do call | |
400 { JavaCallWrapper link(method, receiver, result, CHECK); | |
401 { HandleMark hm(thread); // HandleMark used by HandleMarkCleaner | |
402 | |
403 StubRoutines::call_stub()( | |
404 (address)&link, | |
405 // (intptr_t*)&(result->_value), // see NOTE above (compiler problem) | |
406 result_val_address, // see NOTE above (compiler problem) | |
407 result_type, | |
408 method(), | |
409 entry_point, | |
410 args->parameters(), | |
411 args->size_of_parameters(), | |
412 CHECK | |
413 ); | |
414 | |
415 result = link.result(); // circumvent MS C++ 5.0 compiler bug (result is clobbered across call) | |
416 // Preserve oop return value across possible gc points | |
417 if (oop_result_flag) { | |
418 thread->set_vm_result((oop) result->get_jobject()); | |
419 } | |
420 } | |
421 } // Exit JavaCallWrapper (can block - potential return oop must be preserved) | |
422 | |
423 // Check if a thread stop or suspend should be executed | |
424 // The following assert was not realistic. Thread.stop can set that bit at any moment. | |
425 //assert(!thread->has_special_runtime_exit_condition(), "no async. exceptions should be installed"); | |
426 | |
427 // Restore possible oop return | |
428 if (oop_result_flag) { | |
429 result->set_jobject((jobject)thread->vm_result()); | |
430 thread->set_vm_result(NULL); | |
431 } | |
432 } | |
433 | |
434 | |
435 //-------------------------------------------------------------------------------------- | |
436 // Implementation of JavaCallArguments | |
437 | |
438 intptr_t* JavaCallArguments::parameters() { | |
439 // First convert all handles to oops | |
440 for(int i = 0; i < _size; i++) { | |
441 if (_is_oop[i]) { | |
442 // Handle conversion | |
443 _value[i] = (intptr_t)Handle::raw_resolve((oop *)_value[i]); | |
444 } | |
445 } | |
446 // Return argument vector | |
1506 | 447 return _value; |
0 | 448 } |
449 | |
450 | |
451 class SignatureChekker : public SignatureIterator { | |
452 private: | |
453 bool *_is_oop; | |
454 int _pos; | |
455 BasicType _return_type; | |
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456 intptr_t* _value; |
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457 Thread* _thread; |
0 | 458 |
459 public: | |
460 bool _is_return; | |
461 | |
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462 SignatureChekker(Symbol* signature, BasicType return_type, bool is_static, bool* is_oop, intptr_t* value, Thread* thread) : SignatureIterator(signature) { |
0 | 463 _is_oop = is_oop; |
464 _is_return = false; | |
465 _return_type = return_type; | |
466 _pos = 0; | |
465
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467 _value = value; |
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468 _thread = thread; |
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469 |
0 | 470 if (!is_static) { |
471 check_value(true); // Receiver must be an oop | |
472 } | |
473 } | |
474 | |
475 void check_value(bool type) { | |
476 guarantee(_is_oop[_pos++] == type, "signature does not match pushed arguments"); | |
477 } | |
478 | |
479 void check_doing_return(bool state) { _is_return = state; } | |
480 | |
481 void check_return_type(BasicType t) { | |
482 guarantee(_is_return && t == _return_type, "return type does not match"); | |
483 } | |
484 | |
485 void check_int(BasicType t) { | |
486 if (_is_return) { | |
487 check_return_type(t); | |
488 return; | |
489 } | |
490 check_value(false); | |
491 } | |
492 | |
493 void check_double(BasicType t) { check_long(t); } | |
494 | |
495 void check_long(BasicType t) { | |
496 if (_is_return) { | |
497 check_return_type(t); | |
498 return; | |
499 } | |
500 | |
501 check_value(false); | |
502 check_value(false); | |
503 } | |
504 | |
505 void check_obj(BasicType t) { | |
506 if (_is_return) { | |
507 check_return_type(t); | |
508 return; | |
509 } | |
465
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510 |
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511 // verify handle and the oop pointed to by handle |
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512 int p = _pos; |
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513 bool bad = false; |
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514 // If argument is oop |
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515 if (_is_oop[p]) { |
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516 intptr_t v = _value[p]; |
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517 if (v != 0 ) { |
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518 size_t t = (size_t)v; |
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519 bad = (t < (size_t)os::vm_page_size() ) || !Handle::raw_resolve((oop *)v)->is_oop_or_null(true); |
465
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520 if (CheckJNICalls && bad) { |
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521 ReportJNIFatalError((JavaThread*)_thread, "Bad JNI oop argument"); |
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522 } |
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523 } |
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524 // for the regular debug case. |
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525 assert(!bad, "Bad JNI oop argument"); |
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526 } |
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527 |
0 | 528 check_value(true); |
529 } | |
530 | |
531 void do_bool() { check_int(T_BOOLEAN); } | |
532 void do_char() { check_int(T_CHAR); } | |
533 void do_float() { check_int(T_FLOAT); } | |
534 void do_double() { check_double(T_DOUBLE); } | |
535 void do_byte() { check_int(T_BYTE); } | |
536 void do_short() { check_int(T_SHORT); } | |
537 void do_int() { check_int(T_INT); } | |
538 void do_long() { check_long(T_LONG); } | |
539 void do_void() { check_return_type(T_VOID); } | |
540 void do_object(int begin, int end) { check_obj(T_OBJECT); } | |
541 void do_array(int begin, int end) { check_obj(T_OBJECT); } | |
542 }; | |
543 | |
465
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544 |
0 | 545 void JavaCallArguments::verify(methodHandle method, BasicType return_type, |
546 Thread *thread) { | |
547 guarantee(method->size_of_parameters() == size_of_parameters(), "wrong no. of arguments pushed"); | |
548 | |
549 // Treat T_OBJECT and T_ARRAY as the same | |
550 if (return_type == T_ARRAY) return_type = T_OBJECT; | |
551 | |
552 // Check that oop information is correct | |
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553 Symbol* signature = method->signature(); |
0 | 554 |
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555 SignatureChekker sc(signature, return_type, method->is_static(),_is_oop, _value, thread); |
0 | 556 sc.iterate_parameters(); |
557 sc.check_doing_return(true); | |
558 sc.iterate_returntype(); | |
559 } | |
560 |