Mercurial > hg > truffle
annotate src/share/vm/runtime/javaCalls.cpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author | coleenp |
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date | Sat, 01 Sep 2012 13:25:18 -0400 |
parents | f08d439fab8c |
children | 18fb7da42534 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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(&_receiver); | |
93 #endif // CHECK_UNHANDLED_OOPS | |
94 | |
95 _thread = (JavaThread *)thread; | |
96 _handles = _thread->active_handles(); // save previous handle block & Java frame linkage | |
97 | |
98 // For the profiler, the last_Java_frame information in thread must always be in | |
99 // legal state. We have no last Java frame if last_Java_sp == NULL so | |
100 // the valid transition is to clear _last_Java_sp and then reset the rest of | |
101 // the (platform specific) state. | |
102 | |
103 _anchor.copy(_thread->frame_anchor()); | |
104 _thread->frame_anchor()->clear(); | |
105 | |
106 debug_only(_thread->inc_java_call_counter()); | |
107 _thread->set_active_handles(new_handles); // install new handle block and reset Java frame linkage | |
108 | |
109 assert (_thread->thread_state() != _thread_in_native, "cannot set native pc to NULL"); | |
110 | |
111 // clear any pending exception in thread (native calls start with no exception pending) | |
112 if(clear_pending_exception) { | |
113 _thread->clear_pending_exception(); | |
114 } | |
115 | |
116 if (_anchor.last_Java_sp() == NULL) { | |
117 _thread->record_base_of_stack_pointer(); | |
118 } | |
119 } | |
120 | |
121 | |
122 JavaCallWrapper::~JavaCallWrapper() { | |
123 assert(_thread == JavaThread::current(), "must still be the same thread"); | |
124 | |
125 // restore previous handle block & Java frame linkage | |
126 JNIHandleBlock *_old_handles = _thread->active_handles(); | |
127 _thread->set_active_handles(_handles); | |
128 | |
129 _thread->frame_anchor()->zap(); | |
130 | |
131 debug_only(_thread->dec_java_call_counter()); | |
132 | |
133 if (_anchor.last_Java_sp() == NULL) { | |
134 _thread->set_base_of_stack_pointer(NULL); | |
135 } | |
136 | |
137 | |
138 // Old thread-local info. has been restored. We are not back in the VM. | |
139 ThreadStateTransition::transition_from_java(_thread, _thread_in_vm); | |
140 | |
141 // State has been restored now make the anchor frame visible for the profiler. | |
142 // Do this after the transition because this allows us to put an assert | |
143 // the Java->vm transition which checks to see that stack is not walkable | |
144 // on sparc/ia64 which will catch violations of the reseting of last_Java_frame | |
145 // invariants (i.e. _flags always cleared on return to Java) | |
146 | |
147 _thread->frame_anchor()->copy(&_anchor); | |
148 | |
149 // Release handles after we are marked as being inside the VM again, since this | |
150 // operation might block | |
151 JNIHandleBlock::release_block(_old_handles, _thread); | |
152 } | |
153 | |
154 | |
155 void JavaCallWrapper::oops_do(OopClosure* f) { | |
156 f->do_oop((oop*)&_receiver); | |
157 handles()->oops_do(f); | |
158 } | |
159 | |
160 | |
161 // Helper methods | |
162 static BasicType runtime_type_from(JavaValue* result) { | |
163 switch (result->get_type()) { | |
164 case T_BOOLEAN: // fall through | |
165 case T_CHAR : // fall through | |
166 case T_SHORT : // fall through | |
167 case T_INT : // fall through | |
168 #ifndef _LP64 | |
169 case T_OBJECT : // fall through | |
170 case T_ARRAY : // fall through | |
171 #endif | |
172 case T_BYTE : // fall through | |
173 case T_VOID : return T_INT; | |
174 case T_LONG : return T_LONG; | |
175 case T_FLOAT : return T_FLOAT; | |
176 case T_DOUBLE : return T_DOUBLE; | |
177 #ifdef _LP64 | |
178 case T_ARRAY : // fall through | |
179 case T_OBJECT: return T_OBJECT; | |
180 #endif | |
181 } | |
182 ShouldNotReachHere(); | |
183 return T_ILLEGAL; | |
184 } | |
185 | |
186 // ===== object constructor calls ===== | |
187 | |
188 void JavaCalls::call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS) { | |
189 assert(method->name() == vmSymbols::object_initializer_name(), "Should only be called for default constructor"); | |
190 assert(method->signature() == vmSymbols::void_method_signature(), "Should only be called for default constructor"); | |
191 | |
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192 InstanceKlass* ik = InstanceKlass::cast(method->method_holder()); |
0 | 193 if (ik->is_initialized() && ik->has_vanilla_constructor()) { |
194 // safe to skip constructor call | |
195 } else { | |
196 static JavaValue result(T_VOID); | |
197 JavaCallArguments args(receiver); | |
198 call(&result, method, &args, CHECK); | |
199 } | |
200 } | |
201 | |
202 // ============ Virtual calls ============ | |
203 | |
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204 void JavaCalls::call_virtual(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 205 CallInfo callinfo; |
206 Handle receiver = args->receiver(); | |
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207 KlassHandle recvrKlass(THREAD, receiver.is_null() ? (Klass*)NULL : receiver->klass()); |
0 | 208 LinkResolver::resolve_virtual_call( |
209 callinfo, receiver, recvrKlass, spec_klass, name, signature, | |
210 KlassHandle(), false, true, CHECK); | |
211 methodHandle method = callinfo.selected_method(); | |
212 assert(method.not_null(), "should have thrown exception"); | |
213 | |
214 // Invoke the method | |
215 JavaCalls::call(result, method, args, CHECK); | |
216 } | |
217 | |
218 | |
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219 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 220 JavaCallArguments args(receiver); // One oop argument |
221 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
222 } | |
223 | |
224 | |
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225 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 226 JavaCallArguments args(receiver); // One oop argument |
227 args.push_oop(arg1); | |
228 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
229 } | |
230 | |
231 | |
232 | |
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233 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 234 JavaCallArguments args(receiver); // One oop argument |
235 args.push_oop(arg1); | |
236 args.push_oop(arg2); | |
237 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
238 } | |
239 | |
240 | |
241 // ============ Special calls ============ | |
242 | |
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243 void JavaCalls::call_special(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 244 CallInfo callinfo; |
245 LinkResolver::resolve_special_call(callinfo, klass, name, signature, KlassHandle(), false, CHECK); | |
246 methodHandle method = callinfo.selected_method(); | |
247 assert(method.not_null(), "should have thrown exception"); | |
248 | |
249 // Invoke the method | |
250 JavaCalls::call(result, method, args, CHECK); | |
251 } | |
252 | |
253 | |
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254 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 255 JavaCallArguments args(receiver); // One oop argument |
256 call_special(result, klass, name, signature, &args, CHECK); | |
257 } | |
258 | |
259 | |
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260 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 261 JavaCallArguments args(receiver); // One oop argument |
262 args.push_oop(arg1); | |
263 call_special(result, klass, name, signature, &args, CHECK); | |
264 } | |
265 | |
266 | |
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267 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 268 JavaCallArguments args(receiver); // One oop argument |
269 args.push_oop(arg1); | |
270 args.push_oop(arg2); | |
271 call_special(result, klass, name, signature, &args, CHECK); | |
272 } | |
273 | |
274 | |
275 // ============ Static calls ============ | |
276 | |
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277 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 278 CallInfo callinfo; |
279 LinkResolver::resolve_static_call(callinfo, klass, name, signature, KlassHandle(), false, true, CHECK); | |
280 methodHandle method = callinfo.selected_method(); | |
281 assert(method.not_null(), "should have thrown exception"); | |
282 | |
283 // Invoke the method | |
284 JavaCalls::call(result, method, args, CHECK); | |
285 } | |
286 | |
287 | |
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288 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 289 JavaCallArguments args; // No argument |
290 call_static(result, klass, name, signature, &args, CHECK); | |
291 } | |
292 | |
293 | |
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294 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 295 JavaCallArguments args(arg1); // One oop argument |
296 call_static(result, klass, name, signature, &args, CHECK); | |
297 } | |
298 | |
299 | |
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300 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 301 JavaCallArguments args; // One oop argument |
302 args.push_oop(arg1); | |
303 args.push_oop(arg2); | |
304 call_static(result, klass, name, signature, &args, CHECK); | |
305 } | |
306 | |
307 | |
308 // ------------------------------------------------- | |
309 // Implementation of JavaCalls (low level) | |
310 | |
311 | |
312 void JavaCalls::call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS) { | |
313 // Check if we need to wrap a potential OS exception handler around thread | |
314 // This is used for e.g. Win32 structured exception handlers | |
315 assert(THREAD->is_Java_thread(), "only JavaThreads can make JavaCalls"); | |
316 // Need to wrap each and everytime, since there might be native code down the | |
317 // stack that has installed its own exception handlers | |
318 os::os_exception_wrapper(call_helper, result, &method, args, THREAD); | |
319 } | |
320 | |
321 void JavaCalls::call_helper(JavaValue* result, methodHandle* m, JavaCallArguments* args, TRAPS) { | |
322 methodHandle method = *m; | |
323 JavaThread* thread = (JavaThread*)THREAD; | |
324 assert(thread->is_Java_thread(), "must be called by a java thread"); | |
325 assert(method.not_null(), "must have a method to call"); | |
326 assert(!SafepointSynchronize::is_at_safepoint(), "call to Java code during VM operation"); | |
327 assert(!thread->handle_area()->no_handle_mark_active(), "cannot call out to Java here"); | |
328 | |
329 | |
330 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
331 | |
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332 // Verify the arguments |
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333 |
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334 if (CheckJNICalls) { |
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335 args->verify(method, result->get_type(), thread); |
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336 } |
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337 else debug_only(args->verify(method, result->get_type(), thread)); |
0 | 338 |
339 // Ignore call if method is empty | |
340 if (method->is_empty_method()) { | |
341 assert(result->get_type() == T_VOID, "an empty method must return a void value"); | |
342 return; | |
343 } | |
344 | |
345 | |
346 #ifdef ASSERT | |
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347 { Klass* holder = method->method_holder(); |
0 | 348 // A klass might not be initialized since JavaCall's might be used during the executing of |
349 // the <clinit>. For example, a Thread.start might start executing on an object that is | |
350 // not fully initialized! (bad Java programming style) | |
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351 assert(InstanceKlass::cast(holder)->is_linked(), "rewritting must have taken place"); |
0 | 352 } |
353 #endif | |
354 | |
355 | |
356 assert(!thread->is_Compiler_thread(), "cannot compile from the compiler"); | |
1783 | 357 if (CompilationPolicy::must_be_compiled(method)) { |
0 | 358 CompileBroker::compile_method(method, InvocationEntryBci, |
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359 CompilationPolicy::policy()->initial_compile_level(), |
1783 | 360 methodHandle(), 0, "must_be_compiled", CHECK); |
0 | 361 } |
362 | |
363 // Since the call stub sets up like the interpreter we call the from_interpreted_entry | |
364 // so we can go compiled via a i2c. Otherwise initial entry method will always | |
365 // run interpreted. | |
366 address entry_point = method->from_interpreted_entry(); | |
367 if (JvmtiExport::can_post_interpreter_events() && thread->is_interp_only_mode()) { | |
368 entry_point = method->interpreter_entry(); | |
369 } | |
370 | |
371 // Figure out if the result value is an oop or not (Note: This is a different value | |
372 // than result_type. result_type will be T_INT of oops. (it is about size) | |
373 BasicType result_type = runtime_type_from(result); | |
374 bool oop_result_flag = (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY); | |
375 | |
376 // NOTE: if we move the computation of the result_val_address inside | |
377 // the call to call_stub, the optimizer produces wrong code. | |
378 intptr_t* result_val_address = (intptr_t*)(result->get_value_addr()); | |
379 | |
380 // Find receiver | |
381 Handle receiver = (!method->is_static()) ? args->receiver() : Handle(); | |
382 | |
383 // When we reenter Java, we need to reenable the yellow zone which | |
384 // might already be disabled when we are in VM. | |
385 if (thread->stack_yellow_zone_disabled()) { | |
386 thread->reguard_stack(); | |
387 } | |
388 | |
389 // Check that there are shadow pages available before changing thread state | |
390 // to Java | |
391 if (!os::stack_shadow_pages_available(THREAD, method)) { | |
392 // Throw stack overflow exception with preinitialized exception. | |
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393 Exceptions::throw_stack_overflow_exception(THREAD, __FILE__, __LINE__, method); |
0 | 394 return; |
395 } else { | |
396 // Touch pages checked if the OS needs them to be touched to be mapped. | |
397 os::bang_stack_shadow_pages(); | |
398 } | |
399 | |
400 // do call | |
401 { JavaCallWrapper link(method, receiver, result, CHECK); | |
402 { HandleMark hm(thread); // HandleMark used by HandleMarkCleaner | |
403 | |
404 StubRoutines::call_stub()( | |
405 (address)&link, | |
406 // (intptr_t*)&(result->_value), // see NOTE above (compiler problem) | |
407 result_val_address, // see NOTE above (compiler problem) | |
408 result_type, | |
409 method(), | |
410 entry_point, | |
411 args->parameters(), | |
412 args->size_of_parameters(), | |
413 CHECK | |
414 ); | |
415 | |
416 result = link.result(); // circumvent MS C++ 5.0 compiler bug (result is clobbered across call) | |
417 // Preserve oop return value across possible gc points | |
418 if (oop_result_flag) { | |
419 thread->set_vm_result((oop) result->get_jobject()); | |
420 } | |
421 } | |
422 } // Exit JavaCallWrapper (can block - potential return oop must be preserved) | |
423 | |
424 // Check if a thread stop or suspend should be executed | |
425 // The following assert was not realistic. Thread.stop can set that bit at any moment. | |
426 //assert(!thread->has_special_runtime_exit_condition(), "no async. exceptions should be installed"); | |
427 | |
428 // Restore possible oop return | |
429 if (oop_result_flag) { | |
430 result->set_jobject((jobject)thread->vm_result()); | |
431 thread->set_vm_result(NULL); | |
432 } | |
433 } | |
434 | |
435 | |
436 //-------------------------------------------------------------------------------------- | |
437 // Implementation of JavaCallArguments | |
438 | |
439 intptr_t* JavaCallArguments::parameters() { | |
440 // First convert all handles to oops | |
441 for(int i = 0; i < _size; i++) { | |
442 if (_is_oop[i]) { | |
443 // Handle conversion | |
444 _value[i] = (intptr_t)Handle::raw_resolve((oop *)_value[i]); | |
445 } | |
446 } | |
447 // Return argument vector | |
1506 | 448 return _value; |
0 | 449 } |
450 | |
451 | |
452 class SignatureChekker : public SignatureIterator { | |
453 private: | |
454 bool *_is_oop; | |
455 int _pos; | |
456 BasicType _return_type; | |
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457 intptr_t* _value; |
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458 Thread* _thread; |
0 | 459 |
460 public: | |
461 bool _is_return; | |
462 | |
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463 SignatureChekker(Symbol* signature, BasicType return_type, bool is_static, bool* is_oop, intptr_t* value, Thread* thread) : SignatureIterator(signature) { |
0 | 464 _is_oop = is_oop; |
465 _is_return = false; | |
466 _return_type = return_type; | |
467 _pos = 0; | |
465
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468 _value = value; |
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469 _thread = thread; |
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470 |
0 | 471 if (!is_static) { |
472 check_value(true); // Receiver must be an oop | |
473 } | |
474 } | |
475 | |
476 void check_value(bool type) { | |
477 guarantee(_is_oop[_pos++] == type, "signature does not match pushed arguments"); | |
478 } | |
479 | |
480 void check_doing_return(bool state) { _is_return = state; } | |
481 | |
482 void check_return_type(BasicType t) { | |
483 guarantee(_is_return && t == _return_type, "return type does not match"); | |
484 } | |
485 | |
486 void check_int(BasicType t) { | |
487 if (_is_return) { | |
488 check_return_type(t); | |
489 return; | |
490 } | |
491 check_value(false); | |
492 } | |
493 | |
494 void check_double(BasicType t) { check_long(t); } | |
495 | |
496 void check_long(BasicType t) { | |
497 if (_is_return) { | |
498 check_return_type(t); | |
499 return; | |
500 } | |
501 | |
502 check_value(false); | |
503 check_value(false); | |
504 } | |
505 | |
506 void check_obj(BasicType t) { | |
507 if (_is_return) { | |
508 check_return_type(t); | |
509 return; | |
510 } | |
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511 |
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512 // verify handle and the oop pointed to by handle |
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513 int p = _pos; |
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514 bool bad = false; |
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515 // If argument is oop |
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516 if (_is_oop[p]) { |
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517 intptr_t v = _value[p]; |
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518 if (v != 0 ) { |
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519 size_t t = (size_t)v; |
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520 bad = (t < (size_t)os::vm_page_size() ) || !Handle::raw_resolve((oop *)v)->is_oop_or_null(true); |
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521 if (CheckJNICalls && bad) { |
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522 ReportJNIFatalError((JavaThread*)_thread, "Bad JNI oop argument"); |
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523 } |
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524 } |
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525 // for the regular debug case. |
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526 assert(!bad, "Bad JNI oop argument"); |
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527 } |
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528 |
0 | 529 check_value(true); |
530 } | |
531 | |
532 void do_bool() { check_int(T_BOOLEAN); } | |
533 void do_char() { check_int(T_CHAR); } | |
534 void do_float() { check_int(T_FLOAT); } | |
535 void do_double() { check_double(T_DOUBLE); } | |
536 void do_byte() { check_int(T_BYTE); } | |
537 void do_short() { check_int(T_SHORT); } | |
538 void do_int() { check_int(T_INT); } | |
539 void do_long() { check_long(T_LONG); } | |
540 void do_void() { check_return_type(T_VOID); } | |
541 void do_object(int begin, int end) { check_obj(T_OBJECT); } | |
542 void do_array(int begin, int end) { check_obj(T_OBJECT); } | |
543 }; | |
544 | |
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545 |
0 | 546 void JavaCallArguments::verify(methodHandle method, BasicType return_type, |
547 Thread *thread) { | |
548 guarantee(method->size_of_parameters() == size_of_parameters(), "wrong no. of arguments pushed"); | |
549 | |
550 // Treat T_OBJECT and T_ARRAY as the same | |
551 if (return_type == T_ARRAY) return_type = T_OBJECT; | |
552 | |
553 // Check that oop information is correct | |
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554 Symbol* signature = method->signature(); |
0 | 555 |
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556 SignatureChekker sc(signature, return_type, method->is_static(),_is_oop, _value, thread); |
0 | 557 sc.iterate_parameters(); |
558 sc.check_doing_return(true); | |
559 sc.iterate_returntype(); | |
560 } |