|
1 /* |
|
2 * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. |
|
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
|
4 * |
|
5 * This code is free software; you can redistribute it and/or modify it |
|
6 * under the terms of the GNU General Public License version 2 only, as |
|
7 * published by the Free Software Foundation. |
|
8 * |
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT |
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
12 * version 2 for more details (a copy is included in the LICENSE file that |
|
13 * accompanied this code). |
|
14 * |
|
15 * You should have received a copy of the GNU General Public License version |
|
16 * 2 along with this work; if not, write to the Free Software Foundation, |
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
18 * |
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
20 * or visit www.oracle.com if you need additional information or have any |
|
21 * questions. |
|
22 * |
|
23 */ |
|
24 |
|
25 #ifndef SHARE_VM_RUNTIME_INTERFACESUPPORT_INLINE_HPP |
|
26 #define SHARE_VM_RUNTIME_INTERFACESUPPORT_INLINE_HPP |
|
27 |
|
28 #include "gc/shared/gcLocker.hpp" |
|
29 #include "runtime/handles.inline.hpp" |
|
30 #include "runtime/mutexLocker.hpp" |
|
31 #include "runtime/orderAccess.hpp" |
|
32 #include "runtime/os.hpp" |
|
33 #include "runtime/safepointMechanism.inline.hpp" |
|
34 #include "runtime/thread.hpp" |
|
35 #include "runtime/vm_operations.hpp" |
|
36 #include "utilities/globalDefinitions.hpp" |
|
37 #include "utilities/macros.hpp" |
|
38 #include "utilities/preserveException.hpp" |
|
39 |
|
40 // Wrapper for all entry points to the virtual machine. |
|
41 |
|
42 // InterfaceSupport provides functionality used by the VM_LEAF_BASE and |
|
43 // VM_ENTRY_BASE macros. These macros are used to guard entry points into |
|
44 // the VM and perform checks upon leave of the VM. |
|
45 |
|
46 |
|
47 class InterfaceSupport: AllStatic { |
|
48 # ifdef ASSERT |
|
49 public: |
|
50 static long _scavenge_alot_counter; |
|
51 static long _fullgc_alot_counter; |
|
52 static long _number_of_calls; |
|
53 static long _fullgc_alot_invocation; |
|
54 |
|
55 // Helper methods used to implement +ScavengeALot and +FullGCALot |
|
56 static void check_gc_alot() { if (ScavengeALot || FullGCALot) gc_alot(); } |
|
57 static void gc_alot(); |
|
58 |
|
59 static void walk_stack_from(vframe* start_vf); |
|
60 static void walk_stack(); |
|
61 |
|
62 static void zombieAll(); |
|
63 static void unlinkSymbols(); |
|
64 static void deoptimizeAll(); |
|
65 static void stress_derived_pointers(); |
|
66 static void verify_stack(); |
|
67 static void verify_last_frame(); |
|
68 # endif |
|
69 |
|
70 public: |
|
71 static void serialize_thread_state_with_handler(JavaThread* thread) { |
|
72 serialize_thread_state_internal(thread, true); |
|
73 } |
|
74 |
|
75 // Should only call this if we know that we have a proper SEH set up. |
|
76 static void serialize_thread_state(JavaThread* thread) { |
|
77 serialize_thread_state_internal(thread, false); |
|
78 } |
|
79 |
|
80 private: |
|
81 static void serialize_thread_state_internal(JavaThread* thread, bool needs_exception_handler) { |
|
82 // Make sure new state is seen by VM thread |
|
83 if (os::is_MP()) { |
|
84 if (UseMembar) { |
|
85 // Force a fence between the write above and read below |
|
86 OrderAccess::fence(); |
|
87 } else { |
|
88 // store to serialize page so VM thread can do pseudo remote membar |
|
89 if (needs_exception_handler) { |
|
90 os::write_memory_serialize_page_with_handler(thread); |
|
91 } else { |
|
92 os::write_memory_serialize_page(thread); |
|
93 } |
|
94 } |
|
95 } |
|
96 } |
|
97 }; |
|
98 |
|
99 |
|
100 // Basic class for all thread transition classes. |
|
101 |
|
102 class ThreadStateTransition : public StackObj { |
|
103 protected: |
|
104 JavaThread* _thread; |
|
105 public: |
|
106 ThreadStateTransition(JavaThread *thread) { |
|
107 _thread = thread; |
|
108 assert(thread != NULL && thread->is_Java_thread(), "must be Java thread"); |
|
109 } |
|
110 |
|
111 // Change threadstate in a manner, so safepoint can detect changes. |
|
112 // Time-critical: called on exit from every runtime routine |
|
113 static inline void transition(JavaThread *thread, JavaThreadState from, JavaThreadState to) { |
|
114 assert(from != _thread_in_Java, "use transition_from_java"); |
|
115 assert(from != _thread_in_native, "use transition_from_native"); |
|
116 assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states"); |
|
117 assert(thread->thread_state() == from, "coming from wrong thread state"); |
|
118 // Change to transition state |
|
119 thread->set_thread_state((JavaThreadState)(from + 1)); |
|
120 |
|
121 InterfaceSupport::serialize_thread_state(thread); |
|
122 |
|
123 SafepointMechanism::block_if_requested(thread); |
|
124 thread->set_thread_state(to); |
|
125 |
|
126 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) |
|
127 } |
|
128 |
|
129 // transition_and_fence must be used on any thread state transition |
|
130 // where there might not be a Java call stub on the stack, in |
|
131 // particular on Windows where the Structured Exception Handler is |
|
132 // set up in the call stub. os::write_memory_serialize_page() can |
|
133 // fault and we can't recover from it on Windows without a SEH in |
|
134 // place. |
|
135 static inline void transition_and_fence(JavaThread *thread, JavaThreadState from, JavaThreadState to) { |
|
136 assert(thread->thread_state() == from, "coming from wrong thread state"); |
|
137 assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states"); |
|
138 // Change to transition state |
|
139 thread->set_thread_state((JavaThreadState)(from + 1)); |
|
140 |
|
141 InterfaceSupport::serialize_thread_state_with_handler(thread); |
|
142 |
|
143 SafepointMechanism::block_if_requested(thread); |
|
144 thread->set_thread_state(to); |
|
145 |
|
146 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) |
|
147 } |
|
148 |
|
149 // Same as above, but assumes from = _thread_in_Java. This is simpler, since we |
|
150 // never block on entry to the VM. This will break the code, since e.g. preserve arguments |
|
151 // have not been setup. |
|
152 static inline void transition_from_java(JavaThread *thread, JavaThreadState to) { |
|
153 assert(thread->thread_state() == _thread_in_Java, "coming from wrong thread state"); |
|
154 thread->set_thread_state(to); |
|
155 } |
|
156 |
|
157 static inline void transition_from_native(JavaThread *thread, JavaThreadState to) { |
|
158 assert((to & 1) == 0, "odd numbers are transitions states"); |
|
159 assert(thread->thread_state() == _thread_in_native, "coming from wrong thread state"); |
|
160 // Change to transition state |
|
161 thread->set_thread_state(_thread_in_native_trans); |
|
162 |
|
163 InterfaceSupport::serialize_thread_state_with_handler(thread); |
|
164 |
|
165 // We never install asynchronous exceptions when coming (back) in |
|
166 // to the runtime from native code because the runtime is not set |
|
167 // up to handle exceptions floating around at arbitrary points. |
|
168 if (SafepointMechanism::poll(thread) || thread->is_suspend_after_native()) { |
|
169 JavaThread::check_safepoint_and_suspend_for_native_trans(thread); |
|
170 |
|
171 // Clear unhandled oops anywhere where we could block, even if we don't. |
|
172 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) |
|
173 } |
|
174 |
|
175 thread->set_thread_state(to); |
|
176 } |
|
177 protected: |
|
178 void trans(JavaThreadState from, JavaThreadState to) { transition(_thread, from, to); } |
|
179 void trans_from_java(JavaThreadState to) { transition_from_java(_thread, to); } |
|
180 void trans_from_native(JavaThreadState to) { transition_from_native(_thread, to); } |
|
181 void trans_and_fence(JavaThreadState from, JavaThreadState to) { transition_and_fence(_thread, from, to); } |
|
182 }; |
|
183 |
|
184 class ThreadInVMForHandshake : public ThreadStateTransition { |
|
185 const JavaThreadState _original_state; |
|
186 |
|
187 void transition_back() { |
|
188 // This can be invoked from transition states and must return to the original state properly |
|
189 assert(_thread->thread_state() == _thread_in_vm, "should only call when leaving VM after handshake"); |
|
190 _thread->set_thread_state(_thread_in_vm_trans); |
|
191 |
|
192 InterfaceSupport::serialize_thread_state(_thread); |
|
193 |
|
194 SafepointMechanism::block_if_requested(_thread); |
|
195 |
|
196 _thread->set_thread_state(_original_state); |
|
197 } |
|
198 |
|
199 public: |
|
200 |
|
201 ThreadInVMForHandshake(JavaThread* thread) : ThreadStateTransition(thread), |
|
202 _original_state(thread->thread_state()) { |
|
203 |
|
204 if (thread->has_last_Java_frame()) { |
|
205 thread->frame_anchor()->make_walkable(thread); |
|
206 } |
|
207 |
|
208 thread->set_thread_state(_thread_in_vm); |
|
209 } |
|
210 |
|
211 ~ThreadInVMForHandshake() { |
|
212 transition_back(); |
|
213 } |
|
214 |
|
215 }; |
|
216 |
|
217 class ThreadInVMfromJava : public ThreadStateTransition { |
|
218 public: |
|
219 ThreadInVMfromJava(JavaThread* thread) : ThreadStateTransition(thread) { |
|
220 trans_from_java(_thread_in_vm); |
|
221 } |
|
222 ~ThreadInVMfromJava() { |
|
223 if (_thread->stack_yellow_reserved_zone_disabled()) { |
|
224 _thread->enable_stack_yellow_reserved_zone(); |
|
225 } |
|
226 trans(_thread_in_vm, _thread_in_Java); |
|
227 // Check for pending. async. exceptions or suspends. |
|
228 if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(); |
|
229 } |
|
230 }; |
|
231 |
|
232 |
|
233 class ThreadInVMfromUnknown { |
|
234 private: |
|
235 JavaThread* _thread; |
|
236 public: |
|
237 ThreadInVMfromUnknown() : _thread(NULL) { |
|
238 Thread* t = Thread::current(); |
|
239 if (t->is_Java_thread()) { |
|
240 JavaThread* t2 = (JavaThread*) t; |
|
241 if (t2->thread_state() == _thread_in_native) { |
|
242 _thread = t2; |
|
243 ThreadStateTransition::transition_from_native(t2, _thread_in_vm); |
|
244 // Used to have a HandleMarkCleaner but that is dangerous as |
|
245 // it could free a handle in our (indirect, nested) caller. |
|
246 // We expect any handles will be short lived and figure we |
|
247 // don't need an actual HandleMark. |
|
248 } |
|
249 } |
|
250 } |
|
251 ~ThreadInVMfromUnknown() { |
|
252 if (_thread) { |
|
253 ThreadStateTransition::transition_and_fence(_thread, _thread_in_vm, _thread_in_native); |
|
254 } |
|
255 } |
|
256 }; |
|
257 |
|
258 |
|
259 class ThreadInVMfromNative : public ThreadStateTransition { |
|
260 public: |
|
261 ThreadInVMfromNative(JavaThread* thread) : ThreadStateTransition(thread) { |
|
262 trans_from_native(_thread_in_vm); |
|
263 } |
|
264 ~ThreadInVMfromNative() { |
|
265 trans_and_fence(_thread_in_vm, _thread_in_native); |
|
266 } |
|
267 }; |
|
268 |
|
269 |
|
270 class ThreadToNativeFromVM : public ThreadStateTransition { |
|
271 public: |
|
272 ThreadToNativeFromVM(JavaThread *thread) : ThreadStateTransition(thread) { |
|
273 // We are leaving the VM at this point and going directly to native code. |
|
274 // Block, if we are in the middle of a safepoint synchronization. |
|
275 assert(!thread->owns_locks(), "must release all locks when leaving VM"); |
|
276 thread->frame_anchor()->make_walkable(thread); |
|
277 trans_and_fence(_thread_in_vm, _thread_in_native); |
|
278 // Check for pending. async. exceptions or suspends. |
|
279 if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(false); |
|
280 } |
|
281 |
|
282 ~ThreadToNativeFromVM() { |
|
283 trans_from_native(_thread_in_vm); |
|
284 assert(!_thread->is_pending_jni_exception_check(), "Pending JNI Exception Check"); |
|
285 // We don't need to clear_walkable because it will happen automagically when we return to java |
|
286 } |
|
287 }; |
|
288 |
|
289 |
|
290 class ThreadBlockInVM : public ThreadStateTransition { |
|
291 public: |
|
292 ThreadBlockInVM(JavaThread *thread) |
|
293 : ThreadStateTransition(thread) { |
|
294 // Once we are blocked vm expects stack to be walkable |
|
295 thread->frame_anchor()->make_walkable(thread); |
|
296 trans_and_fence(_thread_in_vm, _thread_blocked); |
|
297 } |
|
298 ~ThreadBlockInVM() { |
|
299 trans_and_fence(_thread_blocked, _thread_in_vm); |
|
300 // We don't need to clear_walkable because it will happen automagically when we return to java |
|
301 } |
|
302 }; |
|
303 |
|
304 |
|
305 // This special transition class is only used to prevent asynchronous exceptions |
|
306 // from being installed on vm exit in situations where we can't tolerate them. |
|
307 // See bugs: 4324348, 4854693, 4998314, 5040492, 5050705. |
|
308 class ThreadInVMfromJavaNoAsyncException : public ThreadStateTransition { |
|
309 public: |
|
310 ThreadInVMfromJavaNoAsyncException(JavaThread* thread) : ThreadStateTransition(thread) { |
|
311 trans_from_java(_thread_in_vm); |
|
312 } |
|
313 ~ThreadInVMfromJavaNoAsyncException() { |
|
314 if (_thread->stack_yellow_reserved_zone_disabled()) { |
|
315 _thread->enable_stack_yellow_reserved_zone(); |
|
316 } |
|
317 trans(_thread_in_vm, _thread_in_Java); |
|
318 // NOTE: We do not check for pending. async. exceptions. |
|
319 // If we did and moved the pending async exception over into the |
|
320 // pending exception field, we would need to deopt (currently C2 |
|
321 // only). However, to do so would require that we transition back |
|
322 // to the _thread_in_vm state. Instead we postpone the handling of |
|
323 // the async exception. |
|
324 |
|
325 |
|
326 // Check for pending. suspends only. |
|
327 if (_thread->has_special_runtime_exit_condition()) |
|
328 _thread->handle_special_runtime_exit_condition(false); |
|
329 } |
|
330 }; |
|
331 |
|
332 // Debug class instantiated in JRT_ENTRY and ITR_ENTRY macro. |
|
333 // Can be used to verify properties on enter/exit of the VM. |
|
334 |
|
335 #ifdef ASSERT |
|
336 class VMEntryWrapper { |
|
337 public: |
|
338 VMEntryWrapper(); |
|
339 ~VMEntryWrapper(); |
|
340 }; |
|
341 |
|
342 |
|
343 class VMNativeEntryWrapper { |
|
344 public: |
|
345 VMNativeEntryWrapper() { |
|
346 if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot(); |
|
347 } |
|
348 |
|
349 ~VMNativeEntryWrapper() { |
|
350 if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot(); |
|
351 } |
|
352 }; |
|
353 |
|
354 #endif |
|
355 |
|
356 |
|
357 // VM-internal runtime interface support |
|
358 |
|
359 #ifdef ASSERT |
|
360 |
|
361 class RuntimeHistogramElement : public HistogramElement { |
|
362 public: |
|
363 RuntimeHistogramElement(const char* name); |
|
364 }; |
|
365 |
|
366 #define TRACE_CALL(result_type, header) \ |
|
367 InterfaceSupport::_number_of_calls++; \ |
|
368 if (CountRuntimeCalls) { \ |
|
369 static RuntimeHistogramElement* e = new RuntimeHistogramElement(#header); \ |
|
370 if (e != NULL) e->increment_count(); \ |
|
371 } |
|
372 #else |
|
373 #define TRACE_CALL(result_type, header) \ |
|
374 /* do nothing */ |
|
375 #endif |
|
376 |
|
377 |
|
378 // LEAF routines do not lock, GC or throw exceptions |
|
379 |
|
380 #define VM_LEAF_BASE(result_type, header) \ |
|
381 TRACE_CALL(result_type, header) \ |
|
382 debug_only(NoHandleMark __hm;) \ |
|
383 os::verify_stack_alignment(); \ |
|
384 /* begin of body */ |
|
385 |
|
386 #define VM_ENTRY_BASE_FROM_LEAF(result_type, header, thread) \ |
|
387 TRACE_CALL(result_type, header) \ |
|
388 debug_only(ResetNoHandleMark __rnhm;) \ |
|
389 HandleMarkCleaner __hm(thread); \ |
|
390 Thread* THREAD = thread; \ |
|
391 os::verify_stack_alignment(); \ |
|
392 /* begin of body */ |
|
393 |
|
394 |
|
395 // ENTRY routines may lock, GC and throw exceptions |
|
396 |
|
397 #define VM_ENTRY_BASE(result_type, header, thread) \ |
|
398 TRACE_CALL(result_type, header) \ |
|
399 HandleMarkCleaner __hm(thread); \ |
|
400 Thread* THREAD = thread; \ |
|
401 os::verify_stack_alignment(); \ |
|
402 /* begin of body */ |
|
403 |
|
404 |
|
405 // QUICK_ENTRY routines behave like ENTRY but without a handle mark |
|
406 |
|
407 #define VM_QUICK_ENTRY_BASE(result_type, header, thread) \ |
|
408 TRACE_CALL(result_type, header) \ |
|
409 debug_only(NoHandleMark __hm;) \ |
|
410 Thread* THREAD = thread; \ |
|
411 os::verify_stack_alignment(); \ |
|
412 /* begin of body */ |
|
413 |
|
414 |
|
415 // Definitions for IRT (Interpreter Runtime) |
|
416 // (thread is an argument passed in to all these routines) |
|
417 |
|
418 #define IRT_ENTRY(result_type, header) \ |
|
419 result_type header { \ |
|
420 ThreadInVMfromJava __tiv(thread); \ |
|
421 VM_ENTRY_BASE(result_type, header, thread) \ |
|
422 debug_only(VMEntryWrapper __vew;) |
|
423 |
|
424 |
|
425 #define IRT_LEAF(result_type, header) \ |
|
426 result_type header { \ |
|
427 VM_LEAF_BASE(result_type, header) \ |
|
428 debug_only(NoSafepointVerifier __nspv(true);) |
|
429 |
|
430 |
|
431 #define IRT_ENTRY_NO_ASYNC(result_type, header) \ |
|
432 result_type header { \ |
|
433 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ |
|
434 VM_ENTRY_BASE(result_type, header, thread) \ |
|
435 debug_only(VMEntryWrapper __vew;) |
|
436 |
|
437 #define IRT_END } |
|
438 |
|
439 |
|
440 // Definitions for JRT (Java (Compiler/Shared) Runtime) |
|
441 |
|
442 #define JRT_ENTRY(result_type, header) \ |
|
443 result_type header { \ |
|
444 ThreadInVMfromJava __tiv(thread); \ |
|
445 VM_ENTRY_BASE(result_type, header, thread) \ |
|
446 debug_only(VMEntryWrapper __vew;) |
|
447 |
|
448 |
|
449 #define JRT_LEAF(result_type, header) \ |
|
450 result_type header { \ |
|
451 VM_LEAF_BASE(result_type, header) \ |
|
452 debug_only(JRTLeafVerifier __jlv;) |
|
453 |
|
454 |
|
455 #define JRT_ENTRY_NO_ASYNC(result_type, header) \ |
|
456 result_type header { \ |
|
457 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ |
|
458 VM_ENTRY_BASE(result_type, header, thread) \ |
|
459 debug_only(VMEntryWrapper __vew;) |
|
460 |
|
461 // Same as JRT Entry but allows for return value after the safepoint |
|
462 // to get back into Java from the VM |
|
463 #define JRT_BLOCK_ENTRY(result_type, header) \ |
|
464 result_type header { \ |
|
465 TRACE_CALL(result_type, header) \ |
|
466 HandleMarkCleaner __hm(thread); |
|
467 |
|
468 #define JRT_BLOCK \ |
|
469 { \ |
|
470 ThreadInVMfromJava __tiv(thread); \ |
|
471 Thread* THREAD = thread; \ |
|
472 debug_only(VMEntryWrapper __vew;) |
|
473 |
|
474 #define JRT_BLOCK_NO_ASYNC \ |
|
475 { \ |
|
476 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ |
|
477 Thread* THREAD = thread; \ |
|
478 debug_only(VMEntryWrapper __vew;) |
|
479 |
|
480 #define JRT_BLOCK_END } |
|
481 |
|
482 #define JRT_END } |
|
483 |
|
484 // Definitions for JNI |
|
485 |
|
486 #define JNI_ENTRY(result_type, header) \ |
|
487 JNI_ENTRY_NO_PRESERVE(result_type, header) \ |
|
488 WeakPreserveExceptionMark __wem(thread); |
|
489 |
|
490 #define JNI_ENTRY_NO_PRESERVE(result_type, header) \ |
|
491 extern "C" { \ |
|
492 result_type JNICALL header { \ |
|
493 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ |
|
494 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ |
|
495 ThreadInVMfromNative __tiv(thread); \ |
|
496 debug_only(VMNativeEntryWrapper __vew;) \ |
|
497 VM_ENTRY_BASE(result_type, header, thread) |
|
498 |
|
499 |
|
500 // Ensure that the VMNativeEntryWrapper constructor, which can cause |
|
501 // a GC, is called outside the NoHandleMark (set via VM_QUICK_ENTRY_BASE). |
|
502 #define JNI_QUICK_ENTRY(result_type, header) \ |
|
503 extern "C" { \ |
|
504 result_type JNICALL header { \ |
|
505 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ |
|
506 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ |
|
507 ThreadInVMfromNative __tiv(thread); \ |
|
508 debug_only(VMNativeEntryWrapper __vew;) \ |
|
509 VM_QUICK_ENTRY_BASE(result_type, header, thread) |
|
510 |
|
511 |
|
512 #define JNI_LEAF(result_type, header) \ |
|
513 extern "C" { \ |
|
514 result_type JNICALL header { \ |
|
515 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ |
|
516 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ |
|
517 VM_LEAF_BASE(result_type, header) |
|
518 |
|
519 |
|
520 // Close the routine and the extern "C" |
|
521 #define JNI_END } } |
|
522 |
|
523 |
|
524 |
|
525 // Definitions for JVM |
|
526 |
|
527 #define JVM_ENTRY(result_type, header) \ |
|
528 extern "C" { \ |
|
529 result_type JNICALL header { \ |
|
530 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ |
|
531 ThreadInVMfromNative __tiv(thread); \ |
|
532 debug_only(VMNativeEntryWrapper __vew;) \ |
|
533 VM_ENTRY_BASE(result_type, header, thread) |
|
534 |
|
535 |
|
536 #define JVM_ENTRY_NO_ENV(result_type, header) \ |
|
537 extern "C" { \ |
|
538 result_type JNICALL header { \ |
|
539 JavaThread* thread = JavaThread::current(); \ |
|
540 ThreadInVMfromNative __tiv(thread); \ |
|
541 debug_only(VMNativeEntryWrapper __vew;) \ |
|
542 VM_ENTRY_BASE(result_type, header, thread) |
|
543 |
|
544 |
|
545 #define JVM_QUICK_ENTRY(result_type, header) \ |
|
546 extern "C" { \ |
|
547 result_type JNICALL header { \ |
|
548 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ |
|
549 ThreadInVMfromNative __tiv(thread); \ |
|
550 debug_only(VMNativeEntryWrapper __vew;) \ |
|
551 VM_QUICK_ENTRY_BASE(result_type, header, thread) |
|
552 |
|
553 |
|
554 #define JVM_LEAF(result_type, header) \ |
|
555 extern "C" { \ |
|
556 result_type JNICALL header { \ |
|
557 VM_Exit::block_if_vm_exited(); \ |
|
558 VM_LEAF_BASE(result_type, header) |
|
559 |
|
560 |
|
561 #define JVM_ENTRY_FROM_LEAF(env, result_type, header) \ |
|
562 { { \ |
|
563 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ |
|
564 ThreadInVMfromNative __tiv(thread); \ |
|
565 debug_only(VMNativeEntryWrapper __vew;) \ |
|
566 VM_ENTRY_BASE_FROM_LEAF(result_type, header, thread) |
|
567 |
|
568 |
|
569 #define JVM_END } } |
|
570 |
|
571 #endif // SHARE_VM_RUNTIME_INTERFACESUPPORT_INLINE_HPP |