Mercurial > hg > truffle
annotate src/share/vm/runtime/javaCalls.cpp @ 4058:59e515ee9354
7059047: EA: can't find initializing store with several CheckCastPP
Summary: Split adjust_escape_state() method into two methods to find initializing stores.
Reviewed-by: never
author | kvn |
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date | Mon, 07 Nov 2011 14:33:57 -0800 |
parents | f08d439fab8c |
children | 04b9a2566eec da91efe96a93 |
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 | |
3960 | 51 #ifdef TARGET_OS_FAMILY_bsd |
52 # include "thread_bsd.inline.hpp" | |
53 #endif | |
0 | 54 |
55 // ----------------------------------------------------- | |
56 // Implementation of JavaCallWrapper | |
57 | |
58 JavaCallWrapper::JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS) { | |
59 JavaThread* thread = (JavaThread *)THREAD; | |
60 bool clear_pending_exception = true; | |
61 | |
62 guarantee(thread->is_Java_thread(), "crucial check - the VM thread cannot and must not escape to Java code"); | |
63 assert(!thread->owns_locks(), "must release all locks when leaving VM"); | |
64 guarantee(!thread->is_Compiler_thread(), "cannot make java calls from the compiler"); | |
65 _result = result; | |
66 | |
67 // Allocate handle block for Java code. This must be done before we change thread_state to _thread_in_Java_or_stub, | |
68 // since it can potentially block. | |
69 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); | |
70 | |
71 // After this, we are official in JavaCode. This needs to be done before we change any of the thread local | |
72 // info, since we cannot find oops before the new information is set up completely. | |
73 ThreadStateTransition::transition(thread, _thread_in_vm, _thread_in_Java); | |
74 | |
75 // Make sure that we handle asynchronous stops and suspends _before_ we clear all thread state | |
76 // in JavaCallWrapper::JavaCallWrapper(). This way, we can decide if we need to do any pd actions | |
77 // to prepare for stop/suspend (flush register windows on sparcs, cache sp, or other state). | |
78 if (thread->has_special_runtime_exit_condition()) { | |
79 thread->handle_special_runtime_exit_condition(); | |
80 if (HAS_PENDING_EXCEPTION) { | |
81 clear_pending_exception = false; | |
82 } | |
83 } | |
84 | |
85 | |
86 // Make sure to set the oop's after the thread transition - since we can block there. No one is GC'ing | |
87 // the JavaCallWrapper before the entry frame is on the stack. | |
88 _callee_method = callee_method(); | |
89 _receiver = receiver(); | |
90 | |
91 #ifdef CHECK_UNHANDLED_OOPS | |
92 THREAD->allow_unhandled_oop(&_callee_method); | |
93 THREAD->allow_unhandled_oop(&_receiver); | |
94 #endif // CHECK_UNHANDLED_OOPS | |
95 | |
96 _thread = (JavaThread *)thread; | |
97 _handles = _thread->active_handles(); // save previous handle block & Java frame linkage | |
98 | |
99 // For the profiler, the last_Java_frame information in thread must always be in | |
100 // legal state. We have no last Java frame if last_Java_sp == NULL so | |
101 // the valid transition is to clear _last_Java_sp and then reset the rest of | |
102 // the (platform specific) state. | |
103 | |
104 _anchor.copy(_thread->frame_anchor()); | |
105 _thread->frame_anchor()->clear(); | |
106 | |
107 debug_only(_thread->inc_java_call_counter()); | |
108 _thread->set_active_handles(new_handles); // install new handle block and reset Java frame linkage | |
109 | |
110 assert (_thread->thread_state() != _thread_in_native, "cannot set native pc to NULL"); | |
111 | |
112 // clear any pending exception in thread (native calls start with no exception pending) | |
113 if(clear_pending_exception) { | |
114 _thread->clear_pending_exception(); | |
115 } | |
116 | |
117 if (_anchor.last_Java_sp() == NULL) { | |
118 _thread->record_base_of_stack_pointer(); | |
119 } | |
120 } | |
121 | |
122 | |
123 JavaCallWrapper::~JavaCallWrapper() { | |
124 assert(_thread == JavaThread::current(), "must still be the same thread"); | |
125 | |
126 // restore previous handle block & Java frame linkage | |
127 JNIHandleBlock *_old_handles = _thread->active_handles(); | |
128 _thread->set_active_handles(_handles); | |
129 | |
130 _thread->frame_anchor()->zap(); | |
131 | |
132 debug_only(_thread->dec_java_call_counter()); | |
133 | |
134 if (_anchor.last_Java_sp() == NULL) { | |
135 _thread->set_base_of_stack_pointer(NULL); | |
136 } | |
137 | |
138 | |
139 // Old thread-local info. has been restored. We are not back in the VM. | |
140 ThreadStateTransition::transition_from_java(_thread, _thread_in_vm); | |
141 | |
142 // State has been restored now make the anchor frame visible for the profiler. | |
143 // Do this after the transition because this allows us to put an assert | |
144 // the Java->vm transition which checks to see that stack is not walkable | |
145 // on sparc/ia64 which will catch violations of the reseting of last_Java_frame | |
146 // invariants (i.e. _flags always cleared on return to Java) | |
147 | |
148 _thread->frame_anchor()->copy(&_anchor); | |
149 | |
150 // Release handles after we are marked as being inside the VM again, since this | |
151 // operation might block | |
152 JNIHandleBlock::release_block(_old_handles, _thread); | |
153 } | |
154 | |
155 | |
156 void JavaCallWrapper::oops_do(OopClosure* f) { | |
157 f->do_oop((oop*)&_callee_method); | |
158 f->do_oop((oop*)&_receiver); | |
159 handles()->oops_do(f); | |
160 } | |
161 | |
162 | |
163 // Helper methods | |
164 static BasicType runtime_type_from(JavaValue* result) { | |
165 switch (result->get_type()) { | |
166 case T_BOOLEAN: // fall through | |
167 case T_CHAR : // fall through | |
168 case T_SHORT : // fall through | |
169 case T_INT : // fall through | |
170 #ifndef _LP64 | |
171 case T_OBJECT : // fall through | |
172 case T_ARRAY : // fall through | |
173 #endif | |
174 case T_BYTE : // fall through | |
175 case T_VOID : return T_INT; | |
176 case T_LONG : return T_LONG; | |
177 case T_FLOAT : return T_FLOAT; | |
178 case T_DOUBLE : return T_DOUBLE; | |
179 #ifdef _LP64 | |
180 case T_ARRAY : // fall through | |
181 case T_OBJECT: return T_OBJECT; | |
182 #endif | |
183 } | |
184 ShouldNotReachHere(); | |
185 return T_ILLEGAL; | |
186 } | |
187 | |
188 // ===== object constructor calls ===== | |
189 | |
190 void JavaCalls::call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS) { | |
191 assert(method->name() == vmSymbols::object_initializer_name(), "Should only be called for default constructor"); | |
192 assert(method->signature() == vmSymbols::void_method_signature(), "Should only be called for default constructor"); | |
193 | |
194 instanceKlass* ik = instanceKlass::cast(method->method_holder()); | |
195 if (ik->is_initialized() && ik->has_vanilla_constructor()) { | |
196 // safe to skip constructor call | |
197 } else { | |
198 static JavaValue result(T_VOID); | |
199 JavaCallArguments args(receiver); | |
200 call(&result, method, &args, CHECK); | |
201 } | |
202 } | |
203 | |
204 // ============ Virtual calls ============ | |
205 | |
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206 void JavaCalls::call_virtual(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 207 CallInfo callinfo; |
208 Handle receiver = args->receiver(); | |
209 KlassHandle recvrKlass(THREAD, receiver.is_null() ? (klassOop)NULL : receiver->klass()); | |
210 LinkResolver::resolve_virtual_call( | |
211 callinfo, receiver, recvrKlass, spec_klass, name, signature, | |
212 KlassHandle(), false, true, CHECK); | |
213 methodHandle method = callinfo.selected_method(); | |
214 assert(method.not_null(), "should have thrown exception"); | |
215 | |
216 // Invoke the method | |
217 JavaCalls::call(result, method, args, CHECK); | |
218 } | |
219 | |
220 | |
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221 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 222 JavaCallArguments args(receiver); // One oop argument |
223 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
224 } | |
225 | |
226 | |
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227 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 228 JavaCallArguments args(receiver); // One oop argument |
229 args.push_oop(arg1); | |
230 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
231 } | |
232 | |
233 | |
234 | |
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235 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 236 JavaCallArguments args(receiver); // One oop argument |
237 args.push_oop(arg1); | |
238 args.push_oop(arg2); | |
239 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
240 } | |
241 | |
242 | |
243 // ============ Special calls ============ | |
244 | |
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245 void JavaCalls::call_special(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 246 CallInfo callinfo; |
247 LinkResolver::resolve_special_call(callinfo, klass, name, signature, KlassHandle(), false, CHECK); | |
248 methodHandle method = callinfo.selected_method(); | |
249 assert(method.not_null(), "should have thrown exception"); | |
250 | |
251 // Invoke the method | |
252 JavaCalls::call(result, method, args, CHECK); | |
253 } | |
254 | |
255 | |
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256 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 257 JavaCallArguments args(receiver); // One oop argument |
258 call_special(result, klass, name, signature, &args, CHECK); | |
259 } | |
260 | |
261 | |
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262 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 263 JavaCallArguments args(receiver); // One oop argument |
264 args.push_oop(arg1); | |
265 call_special(result, klass, name, signature, &args, CHECK); | |
266 } | |
267 | |
268 | |
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269 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 270 JavaCallArguments args(receiver); // One oop argument |
271 args.push_oop(arg1); | |
272 args.push_oop(arg2); | |
273 call_special(result, klass, name, signature, &args, CHECK); | |
274 } | |
275 | |
276 | |
277 // ============ Static calls ============ | |
278 | |
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279 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 280 CallInfo callinfo; |
281 LinkResolver::resolve_static_call(callinfo, klass, name, signature, KlassHandle(), false, true, CHECK); | |
282 methodHandle method = callinfo.selected_method(); | |
283 assert(method.not_null(), "should have thrown exception"); | |
284 | |
285 // Invoke the method | |
286 JavaCalls::call(result, method, args, CHECK); | |
287 } | |
288 | |
289 | |
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290 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 291 JavaCallArguments args; // No argument |
292 call_static(result, klass, name, signature, &args, CHECK); | |
293 } | |
294 | |
295 | |
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296 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 297 JavaCallArguments args(arg1); // One oop argument |
298 call_static(result, klass, name, signature, &args, CHECK); | |
299 } | |
300 | |
301 | |
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302 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 303 JavaCallArguments args; // One oop argument |
304 args.push_oop(arg1); | |
305 args.push_oop(arg2); | |
306 call_static(result, klass, name, signature, &args, CHECK); | |
307 } | |
308 | |
309 | |
310 // ------------------------------------------------- | |
311 // Implementation of JavaCalls (low level) | |
312 | |
313 | |
314 void JavaCalls::call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS) { | |
315 // Check if we need to wrap a potential OS exception handler around thread | |
316 // This is used for e.g. Win32 structured exception handlers | |
317 assert(THREAD->is_Java_thread(), "only JavaThreads can make JavaCalls"); | |
318 // Need to wrap each and everytime, since there might be native code down the | |
319 // stack that has installed its own exception handlers | |
320 os::os_exception_wrapper(call_helper, result, &method, args, THREAD); | |
321 } | |
322 | |
323 void JavaCalls::call_helper(JavaValue* result, methodHandle* m, JavaCallArguments* args, TRAPS) { | |
324 methodHandle method = *m; | |
325 JavaThread* thread = (JavaThread*)THREAD; | |
326 assert(thread->is_Java_thread(), "must be called by a java thread"); | |
327 assert(method.not_null(), "must have a method to call"); | |
328 assert(!SafepointSynchronize::is_at_safepoint(), "call to Java code during VM operation"); | |
329 assert(!thread->handle_area()->no_handle_mark_active(), "cannot call out to Java here"); | |
330 | |
331 | |
332 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
333 | |
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334 // Verify the arguments |
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335 |
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336 if (CheckJNICalls) { |
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337 args->verify(method, result->get_type(), thread); |
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338 } |
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339 else debug_only(args->verify(method, result->get_type(), thread)); |
0 | 340 |
341 // Ignore call if method is empty | |
342 if (method->is_empty_method()) { | |
343 assert(result->get_type() == T_VOID, "an empty method must return a void value"); | |
344 return; | |
345 } | |
346 | |
347 | |
348 #ifdef ASSERT | |
349 { klassOop holder = method->method_holder(); | |
350 // A klass might not be initialized since JavaCall's might be used during the executing of | |
351 // the <clinit>. For example, a Thread.start might start executing on an object that is | |
352 // not fully initialized! (bad Java programming style) | |
353 assert(instanceKlass::cast(holder)->is_linked(), "rewritting must have taken place"); | |
354 } | |
355 #endif | |
356 | |
357 | |
358 assert(!thread->is_Compiler_thread(), "cannot compile from the compiler"); | |
1783 | 359 if (CompilationPolicy::must_be_compiled(method)) { |
0 | 360 CompileBroker::compile_method(method, InvocationEntryBci, |
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361 CompilationPolicy::policy()->initial_compile_level(), |
1783 | 362 methodHandle(), 0, "must_be_compiled", CHECK); |
0 | 363 } |
364 | |
365 // Since the call stub sets up like the interpreter we call the from_interpreted_entry | |
366 // so we can go compiled via a i2c. Otherwise initial entry method will always | |
367 // run interpreted. | |
368 address entry_point = method->from_interpreted_entry(); | |
369 if (JvmtiExport::can_post_interpreter_events() && thread->is_interp_only_mode()) { | |
370 entry_point = method->interpreter_entry(); | |
371 } | |
372 | |
373 // Figure out if the result value is an oop or not (Note: This is a different value | |
374 // than result_type. result_type will be T_INT of oops. (it is about size) | |
375 BasicType result_type = runtime_type_from(result); | |
376 bool oop_result_flag = (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY); | |
377 | |
378 // NOTE: if we move the computation of the result_val_address inside | |
379 // the call to call_stub, the optimizer produces wrong code. | |
380 intptr_t* result_val_address = (intptr_t*)(result->get_value_addr()); | |
381 | |
382 // Find receiver | |
383 Handle receiver = (!method->is_static()) ? args->receiver() : Handle(); | |
384 | |
385 // When we reenter Java, we need to reenable the yellow zone which | |
386 // might already be disabled when we are in VM. | |
387 if (thread->stack_yellow_zone_disabled()) { | |
388 thread->reguard_stack(); | |
389 } | |
390 | |
391 // Check that there are shadow pages available before changing thread state | |
392 // to Java | |
393 if (!os::stack_shadow_pages_available(THREAD, method)) { | |
394 // Throw stack overflow exception with preinitialized exception. | |
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395 Exceptions::throw_stack_overflow_exception(THREAD, __FILE__, __LINE__, method); |
0 | 396 return; |
397 } else { | |
398 // Touch pages checked if the OS needs them to be touched to be mapped. | |
399 os::bang_stack_shadow_pages(); | |
400 } | |
401 | |
402 // do call | |
403 { JavaCallWrapper link(method, receiver, result, CHECK); | |
404 { HandleMark hm(thread); // HandleMark used by HandleMarkCleaner | |
405 | |
406 StubRoutines::call_stub()( | |
407 (address)&link, | |
408 // (intptr_t*)&(result->_value), // see NOTE above (compiler problem) | |
409 result_val_address, // see NOTE above (compiler problem) | |
410 result_type, | |
411 method(), | |
412 entry_point, | |
413 args->parameters(), | |
414 args->size_of_parameters(), | |
415 CHECK | |
416 ); | |
417 | |
418 result = link.result(); // circumvent MS C++ 5.0 compiler bug (result is clobbered across call) | |
419 // Preserve oop return value across possible gc points | |
420 if (oop_result_flag) { | |
421 thread->set_vm_result((oop) result->get_jobject()); | |
422 } | |
423 } | |
424 } // Exit JavaCallWrapper (can block - potential return oop must be preserved) | |
425 | |
426 // Check if a thread stop or suspend should be executed | |
427 // The following assert was not realistic. Thread.stop can set that bit at any moment. | |
428 //assert(!thread->has_special_runtime_exit_condition(), "no async. exceptions should be installed"); | |
429 | |
430 // Restore possible oop return | |
431 if (oop_result_flag) { | |
432 result->set_jobject((jobject)thread->vm_result()); | |
433 thread->set_vm_result(NULL); | |
434 } | |
435 } | |
436 | |
437 | |
438 //-------------------------------------------------------------------------------------- | |
439 // Implementation of JavaCallArguments | |
440 | |
441 intptr_t* JavaCallArguments::parameters() { | |
442 // First convert all handles to oops | |
443 for(int i = 0; i < _size; i++) { | |
444 if (_is_oop[i]) { | |
445 // Handle conversion | |
446 _value[i] = (intptr_t)Handle::raw_resolve((oop *)_value[i]); | |
447 } | |
448 } | |
449 // Return argument vector | |
1506 | 450 return _value; |
0 | 451 } |
452 | |
453 | |
454 class SignatureChekker : public SignatureIterator { | |
455 private: | |
456 bool *_is_oop; | |
457 int _pos; | |
458 BasicType _return_type; | |
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459 intptr_t* _value; |
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460 Thread* _thread; |
0 | 461 |
462 public: | |
463 bool _is_return; | |
464 | |
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465 SignatureChekker(Symbol* signature, BasicType return_type, bool is_static, bool* is_oop, intptr_t* value, Thread* thread) : SignatureIterator(signature) { |
0 | 466 _is_oop = is_oop; |
467 _is_return = false; | |
468 _return_type = return_type; | |
469 _pos = 0; | |
465
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470 _value = value; |
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471 _thread = thread; |
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472 |
0 | 473 if (!is_static) { |
474 check_value(true); // Receiver must be an oop | |
475 } | |
476 } | |
477 | |
478 void check_value(bool type) { | |
479 guarantee(_is_oop[_pos++] == type, "signature does not match pushed arguments"); | |
480 } | |
481 | |
482 void check_doing_return(bool state) { _is_return = state; } | |
483 | |
484 void check_return_type(BasicType t) { | |
485 guarantee(_is_return && t == _return_type, "return type does not match"); | |
486 } | |
487 | |
488 void check_int(BasicType t) { | |
489 if (_is_return) { | |
490 check_return_type(t); | |
491 return; | |
492 } | |
493 check_value(false); | |
494 } | |
495 | |
496 void check_double(BasicType t) { check_long(t); } | |
497 | |
498 void check_long(BasicType t) { | |
499 if (_is_return) { | |
500 check_return_type(t); | |
501 return; | |
502 } | |
503 | |
504 check_value(false); | |
505 check_value(false); | |
506 } | |
507 | |
508 void check_obj(BasicType t) { | |
509 if (_is_return) { | |
510 check_return_type(t); | |
511 return; | |
512 } | |
465
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513 |
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514 // verify handle and the oop pointed to by handle |
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515 int p = _pos; |
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516 bool bad = false; |
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517 // If argument is oop |
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518 if (_is_oop[p]) { |
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519 intptr_t v = _value[p]; |
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520 if (v != 0 ) { |
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521 size_t t = (size_t)v; |
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522 bad = (t < (size_t)os::vm_page_size() ) || !Handle::raw_resolve((oop *)v)->is_oop_or_null(true); |
465
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523 if (CheckJNICalls && bad) { |
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524 ReportJNIFatalError((JavaThread*)_thread, "Bad JNI oop argument"); |
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525 } |
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526 } |
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527 // for the regular debug case. |
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528 assert(!bad, "Bad JNI oop argument"); |
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529 } |
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530 |
0 | 531 check_value(true); |
532 } | |
533 | |
534 void do_bool() { check_int(T_BOOLEAN); } | |
535 void do_char() { check_int(T_CHAR); } | |
536 void do_float() { check_int(T_FLOAT); } | |
537 void do_double() { check_double(T_DOUBLE); } | |
538 void do_byte() { check_int(T_BYTE); } | |
539 void do_short() { check_int(T_SHORT); } | |
540 void do_int() { check_int(T_INT); } | |
541 void do_long() { check_long(T_LONG); } | |
542 void do_void() { check_return_type(T_VOID); } | |
543 void do_object(int begin, int end) { check_obj(T_OBJECT); } | |
544 void do_array(int begin, int end) { check_obj(T_OBJECT); } | |
545 }; | |
546 | |
465
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547 |
0 | 548 void JavaCallArguments::verify(methodHandle method, BasicType return_type, |
549 Thread *thread) { | |
550 guarantee(method->size_of_parameters() == size_of_parameters(), "wrong no. of arguments pushed"); | |
551 | |
552 // Treat T_OBJECT and T_ARRAY as the same | |
553 if (return_type == T_ARRAY) return_type = T_OBJECT; | |
554 | |
555 // Check that oop information is correct | |
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556 Symbol* signature = method->signature(); |
0 | 557 |
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558 SignatureChekker sc(signature, return_type, method->is_static(),_is_oop, _value, thread); |
0 | 559 sc.iterate_parameters(); |
560 sc.check_doing_return(true); | |
561 sc.iterate_returntype(); | |
562 } |