Mercurial > hg > truffle
annotate src/share/vm/runtime/javaCalls.cpp @ 19011:203c7256e123
Merge.
author | Chris Seaton <chris.seaton@oracle.com> |
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date | Thu, 29 Jan 2015 00:12:55 +0000 |
parents | 96ec4e5d3292 |
children | 7848fc12602b |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, 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" | |
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42 #include "runtime/thread.inline.hpp" |
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43 #ifdef GRAAL |
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44 #include "graal/graalJavaAccess.hpp" |
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45 #include "graal/graalRuntime.hpp" |
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46 #endif |
0 | 47 |
48 // ----------------------------------------------------- | |
49 // Implementation of JavaCallWrapper | |
50 | |
18929 | 51 JavaCallWrapper::JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS) { |
0 | 52 JavaThread* thread = (JavaThread *)THREAD; |
53 bool clear_pending_exception = true; | |
54 | |
55 guarantee(thread->is_Java_thread(), "crucial check - the VM thread cannot and must not escape to Java code"); | |
56 assert(!thread->owns_locks(), "must release all locks when leaving VM"); | |
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57 guarantee(thread->can_call_java(), "cannot make java calls from the compiler"); |
0 | 58 _result = result; |
59 | |
60 // Allocate handle block for Java code. This must be done before we change thread_state to _thread_in_Java_or_stub, | |
61 // since it can potentially block. | |
62 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); | |
63 | |
64 // After this, we are official in JavaCode. This needs to be done before we change any of the thread local | |
65 // info, since we cannot find oops before the new information is set up completely. | |
66 ThreadStateTransition::transition(thread, _thread_in_vm, _thread_in_Java); | |
67 | |
68 // Make sure that we handle asynchronous stops and suspends _before_ we clear all thread state | |
69 // in JavaCallWrapper::JavaCallWrapper(). This way, we can decide if we need to do any pd actions | |
70 // to prepare for stop/suspend (flush register windows on sparcs, cache sp, or other state). | |
71 if (thread->has_special_runtime_exit_condition()) { | |
72 thread->handle_special_runtime_exit_condition(); | |
73 if (HAS_PENDING_EXCEPTION) { | |
74 clear_pending_exception = false; | |
75 } | |
76 } | |
77 | |
78 | |
79 // Make sure to set the oop's after the thread transition - since we can block there. No one is GC'ing | |
80 // the JavaCallWrapper before the entry frame is on the stack. | |
81 _callee_method = callee_method(); | |
18929 | 82 _receiver = receiver(); |
0 | 83 |
84 #ifdef CHECK_UNHANDLED_OOPS | |
18929 | 85 THREAD->allow_unhandled_oop(&_receiver); |
0 | 86 #endif // CHECK_UNHANDLED_OOPS |
87 | |
88 _thread = (JavaThread *)thread; | |
89 _handles = _thread->active_handles(); // save previous handle block & Java frame linkage | |
90 | |
91 // For the profiler, the last_Java_frame information in thread must always be in | |
92 // legal state. We have no last Java frame if last_Java_sp == NULL so | |
93 // the valid transition is to clear _last_Java_sp and then reset the rest of | |
94 // the (platform specific) state. | |
95 | |
96 _anchor.copy(_thread->frame_anchor()); | |
97 _thread->frame_anchor()->clear(); | |
98 | |
99 debug_only(_thread->inc_java_call_counter()); | |
100 _thread->set_active_handles(new_handles); // install new handle block and reset Java frame linkage | |
101 | |
102 assert (_thread->thread_state() != _thread_in_native, "cannot set native pc to NULL"); | |
103 | |
104 // clear any pending exception in thread (native calls start with no exception pending) | |
105 if(clear_pending_exception) { | |
106 _thread->clear_pending_exception(); | |
107 } | |
108 | |
109 if (_anchor.last_Java_sp() == NULL) { | |
110 _thread->record_base_of_stack_pointer(); | |
111 } | |
112 } | |
113 | |
114 | |
115 JavaCallWrapper::~JavaCallWrapper() { | |
116 assert(_thread == JavaThread::current(), "must still be the same thread"); | |
117 | |
118 // restore previous handle block & Java frame linkage | |
119 JNIHandleBlock *_old_handles = _thread->active_handles(); | |
120 _thread->set_active_handles(_handles); | |
121 | |
122 _thread->frame_anchor()->zap(); | |
123 | |
124 debug_only(_thread->dec_java_call_counter()); | |
125 | |
126 if (_anchor.last_Java_sp() == NULL) { | |
127 _thread->set_base_of_stack_pointer(NULL); | |
128 } | |
129 | |
130 | |
131 // Old thread-local info. has been restored. We are not back in the VM. | |
132 ThreadStateTransition::transition_from_java(_thread, _thread_in_vm); | |
133 | |
134 // State has been restored now make the anchor frame visible for the profiler. | |
135 // Do this after the transition because this allows us to put an assert | |
136 // the Java->vm transition which checks to see that stack is not walkable | |
137 // on sparc/ia64 which will catch violations of the reseting of last_Java_frame | |
138 // invariants (i.e. _flags always cleared on return to Java) | |
139 | |
140 _thread->frame_anchor()->copy(&_anchor); | |
141 | |
142 // Release handles after we are marked as being inside the VM again, since this | |
143 // operation might block | |
144 JNIHandleBlock::release_block(_old_handles, _thread); | |
145 } | |
146 | |
147 | |
148 void JavaCallWrapper::oops_do(OopClosure* f) { | |
18929 | 149 f->do_oop((oop*)&_receiver); |
0 | 150 handles()->oops_do(f); |
151 } | |
152 | |
153 | |
154 // Helper methods | |
155 static BasicType runtime_type_from(JavaValue* result) { | |
156 switch (result->get_type()) { | |
157 case T_BOOLEAN: // fall through | |
158 case T_CHAR : // fall through | |
159 case T_SHORT : // fall through | |
160 case T_INT : // fall through | |
161 #ifndef _LP64 | |
162 case T_OBJECT : // fall through | |
163 case T_ARRAY : // fall through | |
164 #endif | |
165 case T_BYTE : // fall through | |
166 case T_VOID : return T_INT; | |
167 case T_LONG : return T_LONG; | |
168 case T_FLOAT : return T_FLOAT; | |
169 case T_DOUBLE : return T_DOUBLE; | |
170 #ifdef _LP64 | |
171 case T_ARRAY : // fall through | |
172 case T_OBJECT: return T_OBJECT; | |
173 #endif | |
174 } | |
175 ShouldNotReachHere(); | |
176 return T_ILLEGAL; | |
177 } | |
178 | |
179 // ===== object constructor calls ===== | |
180 | |
181 void JavaCalls::call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS) { | |
182 assert(method->name() == vmSymbols::object_initializer_name(), "Should only be called for default constructor"); | |
183 assert(method->signature() == vmSymbols::void_method_signature(), "Should only be called for default constructor"); | |
184 | |
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185 InstanceKlass* ik = method->method_holder(); |
0 | 186 if (ik->is_initialized() && ik->has_vanilla_constructor()) { |
187 // safe to skip constructor call | |
188 } else { | |
189 static JavaValue result(T_VOID); | |
190 JavaCallArguments args(receiver); | |
191 call(&result, method, &args, CHECK); | |
192 } | |
193 } | |
194 | |
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195 // ============ Interface calls ============ |
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196 |
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197 void JavaCalls::call_interface(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
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198 CallInfo callinfo; |
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199 Handle receiver = args->receiver(); |
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200 KlassHandle recvrKlass(THREAD, receiver.is_null() ? (Klass*)NULL : receiver->klass()); |
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201 LinkResolver::resolve_interface_call( |
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202 callinfo, receiver, recvrKlass, spec_klass, name, signature, |
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203 KlassHandle(), false, true, CHECK); |
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204 methodHandle method = callinfo.selected_method(); |
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205 assert(method.not_null(), "should have thrown exception"); |
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206 |
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207 // Invoke the method |
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208 JavaCalls::call(result, method, args, CHECK); |
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209 } |
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210 |
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211 |
0 | 212 // ============ Virtual calls ============ |
213 | |
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214 void JavaCalls::call_virtual(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 215 CallInfo callinfo; |
216 Handle receiver = args->receiver(); | |
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217 KlassHandle recvrKlass(THREAD, receiver.is_null() ? (Klass*)NULL : receiver->klass()); |
0 | 218 LinkResolver::resolve_virtual_call( |
219 callinfo, receiver, recvrKlass, spec_klass, name, signature, | |
220 KlassHandle(), false, true, CHECK); | |
221 methodHandle method = callinfo.selected_method(); | |
222 assert(method.not_null(), "should have thrown exception"); | |
223 | |
224 // Invoke the method | |
225 JavaCalls::call(result, method, args, CHECK); | |
226 } | |
227 | |
228 | |
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229 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 230 JavaCallArguments args(receiver); // One oop argument |
231 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
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, TRAPS) { |
0 | 236 JavaCallArguments args(receiver); // One oop argument |
237 args.push_oop(arg1); | |
238 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
239 } | |
240 | |
241 | |
242 | |
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243 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 244 JavaCallArguments args(receiver); // One oop argument |
245 args.push_oop(arg1); | |
246 args.push_oop(arg2); | |
247 call_virtual(result, spec_klass, name, signature, &args, CHECK); | |
248 } | |
249 | |
250 | |
251 // ============ Special calls ============ | |
252 | |
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253 void JavaCalls::call_special(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 254 CallInfo callinfo; |
255 LinkResolver::resolve_special_call(callinfo, klass, name, signature, KlassHandle(), false, 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 | |
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264 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 265 JavaCallArguments args(receiver); // One oop argument |
266 call_special(result, klass, name, signature, &args, CHECK); | |
267 } | |
268 | |
269 | |
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270 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 271 JavaCallArguments args(receiver); // One oop argument |
272 args.push_oop(arg1); | |
273 call_special(result, klass, name, signature, &args, CHECK); | |
274 } | |
275 | |
276 | |
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277 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 278 JavaCallArguments args(receiver); // One oop argument |
279 args.push_oop(arg1); | |
280 args.push_oop(arg2); | |
281 call_special(result, klass, name, signature, &args, CHECK); | |
282 } | |
283 | |
284 | |
285 // ============ Static calls ============ | |
286 | |
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287 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { |
0 | 288 CallInfo callinfo; |
289 LinkResolver::resolve_static_call(callinfo, klass, name, signature, KlassHandle(), false, true, CHECK); | |
290 methodHandle method = callinfo.selected_method(); | |
291 assert(method.not_null(), "should have thrown exception"); | |
292 | |
293 // Invoke the method | |
294 JavaCalls::call(result, method, args, CHECK); | |
295 } | |
296 | |
297 | |
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298 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
0 | 299 JavaCallArguments args; // No argument |
300 call_static(result, klass, name, signature, &args, CHECK); | |
301 } | |
302 | |
303 | |
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304 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) { |
0 | 305 JavaCallArguments args(arg1); // One oop argument |
306 call_static(result, klass, name, signature, &args, CHECK); | |
307 } | |
308 | |
309 | |
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310 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) { |
0 | 311 JavaCallArguments args; // One oop argument |
312 args.push_oop(arg1); | |
313 args.push_oop(arg2); | |
314 call_static(result, klass, name, signature, &args, CHECK); | |
315 } | |
316 | |
317 | |
318 // ------------------------------------------------- | |
319 // Implementation of JavaCalls (low level) | |
320 | |
321 | |
322 void JavaCalls::call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS) { | |
323 // Check if we need to wrap a potential OS exception handler around thread | |
324 // This is used for e.g. Win32 structured exception handlers | |
325 assert(THREAD->is_Java_thread(), "only JavaThreads can make JavaCalls"); | |
18929 | 326 // Need to wrap each and every time, since there might be native code down the |
0 | 327 // stack that has installed its own exception handlers |
328 os::os_exception_wrapper(call_helper, result, &method, args, THREAD); | |
329 } | |
330 | |
331 void JavaCalls::call_helper(JavaValue* result, methodHandle* m, JavaCallArguments* args, TRAPS) { | |
332 methodHandle method = *m; | |
333 JavaThread* thread = (JavaThread*)THREAD; | |
334 assert(thread->is_Java_thread(), "must be called by a java thread"); | |
335 assert(method.not_null(), "must have a method to call"); | |
336 assert(!SafepointSynchronize::is_at_safepoint(), "call to Java code during VM operation"); | |
337 assert(!thread->handle_area()->no_handle_mark_active(), "cannot call out to Java here"); | |
338 | |
339 | |
340 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
341 | |
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342 #ifdef GRAAL |
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343 nmethod* nm = args->alternative_target(); |
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344 if (nm == NULL) { |
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345 #endif |
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346 // Verify the arguments |
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347 |
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348 if (CheckJNICalls) { |
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349 args->verify(method, result->get_type(), thread); |
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350 } |
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351 else debug_only(args->verify(method, result->get_type(), thread)); |
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352 #ifdef GRAAL |
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353 } |
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354 #else |
18929 | 355 |
0 | 356 // Ignore call if method is empty |
357 if (method->is_empty_method()) { | |
358 assert(result->get_type() == T_VOID, "an empty method must return a void value"); | |
359 return; | |
360 } | |
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361 #endif |
0 | 362 |
363 #ifdef ASSERT | |
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364 { InstanceKlass* holder = method->method_holder(); |
0 | 365 // A klass might not be initialized since JavaCall's might be used during the executing of |
366 // the <clinit>. For example, a Thread.start might start executing on an object that is | |
367 // not fully initialized! (bad Java programming style) | |
18929 | 368 assert(holder->is_linked(), "rewriting must have taken place"); |
0 | 369 } |
370 #endif | |
371 | |
372 | |
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373 assert(thread->can_call_java(), "cannot compile from the compiler"); |
1783 | 374 if (CompilationPolicy::must_be_compiled(method)) { |
0 | 375 CompileBroker::compile_method(method, InvocationEntryBci, |
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376 CompilationPolicy::policy()->initial_compile_level(), |
1783 | 377 methodHandle(), 0, "must_be_compiled", CHECK); |
0 | 378 } |
379 | |
380 // Since the call stub sets up like the interpreter we call the from_interpreted_entry | |
381 // so we can go compiled via a i2c. Otherwise initial entry method will always | |
382 // run interpreted. | |
383 address entry_point = method->from_interpreted_entry(); | |
384 if (JvmtiExport::can_post_interpreter_events() && thread->is_interp_only_mode()) { | |
385 entry_point = method->interpreter_entry(); | |
386 } | |
387 | |
388 // Figure out if the result value is an oop or not (Note: This is a different value | |
389 // than result_type. result_type will be T_INT of oops. (it is about size) | |
390 BasicType result_type = runtime_type_from(result); | |
391 bool oop_result_flag = (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY); | |
392 | |
393 // NOTE: if we move the computation of the result_val_address inside | |
394 // the call to call_stub, the optimizer produces wrong code. | |
395 intptr_t* result_val_address = (intptr_t*)(result->get_value_addr()); | |
396 | |
18929 | 397 // Find receiver |
398 Handle receiver = (!method->is_static()) ? args->receiver() : Handle(); | |
399 | |
0 | 400 // When we reenter Java, we need to reenable the yellow zone which |
401 // might already be disabled when we are in VM. | |
402 if (thread->stack_yellow_zone_disabled()) { | |
403 thread->reguard_stack(); | |
404 } | |
405 | |
406 // Check that there are shadow pages available before changing thread state | |
407 // to Java | |
408 if (!os::stack_shadow_pages_available(THREAD, method)) { | |
409 // Throw stack overflow exception with preinitialized exception. | |
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410 Exceptions::throw_stack_overflow_exception(THREAD, __FILE__, __LINE__, method); |
0 | 411 return; |
412 } else { | |
413 // Touch pages checked if the OS needs them to be touched to be mapped. | |
414 os::bang_stack_shadow_pages(); | |
415 } | |
416 | |
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417 #ifdef GRAAL |
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418 if (nm != NULL) { |
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419 if (nm->is_alive()) { |
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420 ((JavaThread*) THREAD)->set_graal_alternate_call_target(nm->verified_entry_point()); |
18929 | 421 entry_point = method->adapter()->get_i2c_entry(); |
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422 } else { |
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423 THROW(vmSymbols::com_oracle_graal_api_code_InvalidInstalledCodeException()); |
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424 } |
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425 } |
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426 #endif |
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427 |
0 | 428 // do call |
18929 | 429 { JavaCallWrapper link(method, receiver, result, CHECK); |
0 | 430 { HandleMark hm(thread); // HandleMark used by HandleMarkCleaner |
431 | |
432 StubRoutines::call_stub()( | |
433 (address)&link, | |
434 // (intptr_t*)&(result->_value), // see NOTE above (compiler problem) | |
435 result_val_address, // see NOTE above (compiler problem) | |
436 result_type, | |
437 method(), | |
438 entry_point, | |
439 args->parameters(), | |
440 args->size_of_parameters(), | |
441 CHECK | |
442 ); | |
443 | |
444 result = link.result(); // circumvent MS C++ 5.0 compiler bug (result is clobbered across call) | |
445 // Preserve oop return value across possible gc points | |
446 if (oop_result_flag) { | |
447 thread->set_vm_result((oop) result->get_jobject()); | |
448 } | |
449 } | |
450 } // Exit JavaCallWrapper (can block - potential return oop must be preserved) | |
451 | |
452 // Check if a thread stop or suspend should be executed | |
453 // The following assert was not realistic. Thread.stop can set that bit at any moment. | |
454 //assert(!thread->has_special_runtime_exit_condition(), "no async. exceptions should be installed"); | |
455 | |
456 // Restore possible oop return | |
457 if (oop_result_flag) { | |
458 result->set_jobject((jobject)thread->vm_result()); | |
459 thread->set_vm_result(NULL); | |
460 } | |
461 } | |
462 | |
463 | |
464 //-------------------------------------------------------------------------------------- | |
465 // Implementation of JavaCallArguments | |
466 | |
467 intptr_t* JavaCallArguments::parameters() { | |
468 // First convert all handles to oops | |
469 for(int i = 0; i < _size; i++) { | |
470 if (_is_oop[i]) { | |
471 // Handle conversion | |
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472 _value[i] = cast_from_oop<intptr_t>(Handle::raw_resolve((oop *)_value[i])); |
0 | 473 } |
474 } | |
475 // Return argument vector | |
1506 | 476 return _value; |
0 | 477 } |
478 | |
479 | |
480 class SignatureChekker : public SignatureIterator { | |
481 private: | |
482 bool *_is_oop; | |
483 int _pos; | |
484 BasicType _return_type; | |
465
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485 intptr_t* _value; |
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486 Thread* _thread; |
0 | 487 |
488 public: | |
489 bool _is_return; | |
490 | |
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491 SignatureChekker(Symbol* signature, BasicType return_type, bool is_static, bool* is_oop, intptr_t* value, Thread* thread) : SignatureIterator(signature) { |
0 | 492 _is_oop = is_oop; |
493 _is_return = false; | |
494 _return_type = return_type; | |
495 _pos = 0; | |
465
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496 _value = value; |
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497 _thread = thread; |
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498 |
0 | 499 if (!is_static) { |
500 check_value(true); // Receiver must be an oop | |
501 } | |
502 } | |
503 | |
504 void check_value(bool type) { | |
505 guarantee(_is_oop[_pos++] == type, "signature does not match pushed arguments"); | |
506 } | |
507 | |
508 void check_doing_return(bool state) { _is_return = state; } | |
509 | |
510 void check_return_type(BasicType t) { | |
511 guarantee(_is_return && t == _return_type, "return type does not match"); | |
512 } | |
513 | |
514 void check_int(BasicType t) { | |
515 if (_is_return) { | |
516 check_return_type(t); | |
517 return; | |
518 } | |
519 check_value(false); | |
520 } | |
521 | |
522 void check_double(BasicType t) { check_long(t); } | |
523 | |
524 void check_long(BasicType t) { | |
525 if (_is_return) { | |
526 check_return_type(t); | |
527 return; | |
528 } | |
529 | |
530 check_value(false); | |
531 check_value(false); | |
532 } | |
533 | |
534 void check_obj(BasicType t) { | |
535 if (_is_return) { | |
536 check_return_type(t); | |
537 return; | |
538 } | |
465
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539 |
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540 // verify handle and the oop pointed to by handle |
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541 int p = _pos; |
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542 bool bad = false; |
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543 // If argument is oop |
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544 if (_is_oop[p]) { |
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545 intptr_t v = _value[p]; |
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546 if (v != 0 ) { |
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547 size_t t = (size_t)v; |
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548 bad = (t < (size_t)os::vm_page_size() ) || !Handle::raw_resolve((oop *)v)->is_oop_or_null(true); |
465
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549 if (CheckJNICalls && bad) { |
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550 ReportJNIFatalError((JavaThread*)_thread, "Bad JNI oop argument"); |
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551 } |
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552 } |
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553 // for the regular debug case. |
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554 assert(!bad, "Bad JNI oop argument"); |
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555 } |
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556 |
0 | 557 check_value(true); |
558 } | |
559 | |
560 void do_bool() { check_int(T_BOOLEAN); } | |
561 void do_char() { check_int(T_CHAR); } | |
562 void do_float() { check_int(T_FLOAT); } | |
563 void do_double() { check_double(T_DOUBLE); } | |
564 void do_byte() { check_int(T_BYTE); } | |
565 void do_short() { check_int(T_SHORT); } | |
566 void do_int() { check_int(T_INT); } | |
567 void do_long() { check_long(T_LONG); } | |
568 void do_void() { check_return_type(T_VOID); } | |
569 void do_object(int begin, int end) { check_obj(T_OBJECT); } | |
570 void do_array(int begin, int end) { check_obj(T_OBJECT); } | |
571 }; | |
572 | |
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573 |
0 | 574 void JavaCallArguments::verify(methodHandle method, BasicType return_type, |
575 Thread *thread) { | |
576 guarantee(method->size_of_parameters() == size_of_parameters(), "wrong no. of arguments pushed"); | |
577 | |
578 // Treat T_OBJECT and T_ARRAY as the same | |
579 if (return_type == T_ARRAY) return_type = T_OBJECT; | |
580 | |
581 // Check that oop information is correct | |
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582 Symbol* signature = method->signature(); |
0 | 583 |
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584 SignatureChekker sc(signature, return_type, method->is_static(),_is_oop, _value, thread); |
0 | 585 sc.iterate_parameters(); |
586 sc.check_doing_return(true); | |
587 sc.iterate_returntype(); | |
588 } |